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* [FFmpeg-devel] [PR] 164 (PR #21980)
@ 2026-02-20 15:45 dbxear via ffmpeg-devel
  0 siblings, 0 replies; only message in thread
From: dbxear via ffmpeg-devel @ 2026-02-20 15:45 UTC (permalink / raw)
  To: ffmpeg-devel; +Cc: dbxear

PR #21980 opened by dbxear
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21980
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21980.patch


>From 4ca9e6e1560cde09aaede002ad395e199ab0712b Mon Sep 17 00:00:00 2001
From: dbxeaver <noreply@localhost>
Date: Fri, 20 Feb 2026 10:45:23 -0500
Subject: [PATCH] 164

---
 CONTRIBUTING.md               |    4 -
 COPYING.GPLv2                 |  339 --
 COPYING.GPLv3                 |  674 ---
 COPYING.LGPLv2.1              |  502 --
 COPYING.LGPLv3                |  165 -
 Changelog                     | 2258 ---------
 INSTALL.md                    |   28 -
 LICENSE.md                    |  127 -
 Makefile                      |  222 -
 README.md                     |   46 -
 RELEASE                       |    1 -
 configure                     | 8810 ---------------------------------
 ffbuild/.gitignore            |    7 -
 ffbuild/arch.mak              |   27 -
 ffbuild/bin2c.c               |   80 -
 ffbuild/common.mak            |  279 --
 ffbuild/library.mak           |  139 -
 ffbuild/libversion.sh         |   18 -
 ffbuild/pkgconfig_generate.sh |   62 -
 ffbuild/version.sh            |   63 -
 20 files changed, 13851 deletions(-)
 delete mode 100644 CONTRIBUTING.md
 delete mode 100644 COPYING.GPLv2
 delete mode 100644 COPYING.GPLv3
 delete mode 100644 COPYING.LGPLv2.1
 delete mode 100644 COPYING.LGPLv3
 delete mode 100644 Changelog
 delete mode 100644 INSTALL.md
 delete mode 100644 LICENSE.md
 delete mode 100644 Makefile
 delete mode 100644 README.md
 delete mode 100644 RELEASE
 delete mode 100755 configure
 delete mode 100644 ffbuild/.gitignore
 delete mode 100644 ffbuild/arch.mak
 delete mode 100644 ffbuild/bin2c.c
 delete mode 100644 ffbuild/common.mak
 delete mode 100644 ffbuild/library.mak
 delete mode 100755 ffbuild/libversion.sh
 delete mode 100755 ffbuild/pkgconfig_generate.sh
 delete mode 100755 ffbuild/version.sh

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
deleted file mode 100644
index c2b79e4526..0000000000
--- a/CONTRIBUTING.md
+++ /dev/null
@@ -1,4 +0,0 @@
-# Note to Github users
-Patches should be submitted to the [ffmpeg-devel mailing list](https://ffmpeg.org/mailman/listinfo/ffmpeg-devel) using `git format-patch` or `git send-email`. Github pull requests should be avoided because they are not part of our review process and **will be ignored**.
-
-See [https://ffmpeg.org/developer.html#Contributing](https://ffmpeg.org/developer.html#Contributing) for more information.
diff --git a/COPYING.GPLv2 b/COPYING.GPLv2
deleted file mode 100644
index d159169d10..0000000000
--- a/COPYING.GPLv2
+++ /dev/null
@@ -1,339 +0,0 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
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-  The licenses for most software are designed to take away your
-freedom to share and change it.  By contrast, the GNU General Public
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-software--to make sure the software is free for all its users.  This
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-Foundation's software and to any other program whose authors commit to
-using it.  (Some other Free Software Foundation software is covered by
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diff --git a/COPYING.GPLv3 b/COPYING.GPLv3
deleted file mode 100644
index 94a9ed024d..0000000000
--- a/COPYING.GPLv3
+++ /dev/null
@@ -1,674 +0,0 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
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-Also add information on how to contact you by electronic and paper mail.
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-    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
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-The hypothetical commands `show w' and `show c' should show the appropriate
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-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
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-  The GNU General Public License does not permit incorporating your program
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diff --git a/COPYING.LGPLv2.1 b/COPYING.LGPLv2.1
deleted file mode 100644
index 40924c2a6d..0000000000
--- a/COPYING.LGPLv2.1
+++ /dev/null
@@ -1,502 +0,0 @@
-                  GNU LESSER GENERAL PUBLIC LICENSE
-                       Version 2.1, February 1999
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- Copyright (C) 1991, 1999 Free Software Foundation, Inc.
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- Everyone is permitted to copy and distribute verbatim copies
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-[This is the first released version of the Lesser GPL.  It also counts
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index 65c5ca88a6..0000000000
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diff --git a/Changelog b/Changelog
deleted file mode 100644
index a9d68b369e..0000000000
--- a/Changelog
+++ /dev/null
@@ -1,2258 +0,0 @@
-Entries are sorted chronologically from oldest to youngest within each release,
-releases are sorted from youngest to oldest.
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-version <next>:
-- ffprobe -codec option
-- EXIF Metadata Parsing
-- gfxcapture: Windows.Graphics.Capture based window/monitor capture
-- hxvs demuxer for HXVS/HXVT IP camera format
-- MPEG-H 3D Audio decoding via mpeghdec
-- D3D12 H.264 encoder
-- drawvg filter via libcairo
-- ffmpeg CLI tiled HEIF support
-- D3D12 AV1 encoder
-- ProRes Vulkan hwaccel
-- DPX Vulkan hwaccel
-- Rockchip H.264/HEVC hardware encoder
-- Add vf_scale_d3d12 filter
-- JPEG-XS parser
-- JPEG-XS decoder and encoder through libsvtjpegxs
-- JPEG-XS raw bitstream muxer and demuxer
-- IAMF Projection mode Ambisonic Audio Elements muxing and demuxing
-- Add vf_mestimate_d3d12 filter
-
-
-version 8.0:
-- Whisper filter
-- Drop support for OpenSSL < 1.1.0
-- Enable TLS peer certificate verification by default (on next major version bump)
-- Drop support for OpenSSL < 1.1.1
-- yasm support dropped, users need to use nasm
-- VVC VAAPI decoder
-- RealVideo 6.0 decoder
-- OpenMAX encoders deprecated
-- libx265 alpha layer encoding
-- ADPCM IMA Xbox decoder
-- Enhanced FLV v2: Multitrack audio/video, modern codec support
-- Animated JPEG XL encoding (via libjxl)
-- VVC in Matroska
-- CENC AV1 support in MP4 muxer
-- pngenc: set default prediction method to PAETH
-- APV decoder and APV raw bitstream muxing and demuxing
-- APV parser
-- APV encoding support through a libopenapv wrapper
-- VVC decoder supports all content of SCC (Screen Content Coding):
-  IBC (Inter Block Copy), Palette Mode and ACT (Adaptive Color Transform
-- G.728 decoder
-- pad_cuda filter
-- Sanyo LD-ADPCM decoder
-- APV in MP4/ISOBMFF muxing and demuxing
-- OpenHarmony hardware decoder/encoder
-- Colordetect filter
-- Add vf_scale_d3d11 filter
-- No longer disabling GCC autovectorization, on X86, ARM and AArch64
-- VP9 Vulkan hwaccel
-- AV1 Vulkan encoder
-- ProRes RAW decoder
-- ProRes RAW Vulkan hwaccel
-- ffprobe -codec option
-- HDR10+ metadata passthrough when decoding/encoding with libaom-av1
-
-
-version 7.1:
-- Raw Captions with Time (RCWT) closed caption demuxer
-- LC3/LC3plus decoding/encoding using external library liblc3
-- ffmpeg CLI filtergraph chaining
-- LC3/LC3plus demuxer and muxer
-- pad_vaapi, drawbox_vaapi filters
-- vf_scale supports secondary ref input and framesync options
-- vf_scale2ref deprecated
-- qsv_params option added for QSV encoders
-- VVC decoder compatible with DVB test content
-- xHE-AAC decoder
-- removed DEC Alpha DSP and support code
-- VVC encoding support via libvvenc
-- perlin video source
-- D3D12VA HEVC encoder
-- Cropping metadata parsing and writing in Matroska and MP4/MOV de/muxers
-- Intel QSV-accelerated VVC decoding
-- MediaCodec AAC/AMR-NB/AMR-WB/MP3 decoding
-- YUV colorspace negotiation for codecs and filters, obsoleting the
-  YUVJ pixel format
-- Vulkan H.264 encoder
-- Vulkan H.265 encoder
-- stream specifiers in fftools can now match by stream disposition
-- LCEVC enhancement data exporting in H.26x and MP4/ISOBMFF
-- LCEVC filter
-- MV-HEVC decoding
-- minor stream specifier syntax changes:
-    - when matching by metadata (:m:<key>:<val>), the colon character
-      in keys or values now has to be backslash-escaped
-    - in optional maps (-map ....?) with a metadata-matching stream specifier,
-      the value has to be separated from the question mark by a colon, i.e.
-      -map ....:m:<key>:<val>:? (otherwise it would be ambiguous whether the
-      question mark is a part of <val> or not)
-    - multiple stream types in a single specifier (e.g. :s:s:0) now cause an
-      error, as such a specifier makes no sense
-- Mastering Display and Content Light Level metadata support in hevc_nvenc
-  and av1_nvenc encoders
-- libswresample now accepts custom order channel layouts as input, with some
-  constrains
-- FFV1 parser
-
-
-version 7.0:
-- DXV DXT1 encoder
-- LEAD MCMP decoder
-- EVC decoding using external library libxevd
-- EVC encoding using external library libxeve
-- QOA decoder and demuxer
-- aap filter
-- demuxing, decoding, filtering, encoding, and muxing in the
-  ffmpeg CLI now all run in parallel
-- enable gdigrab device to grab a window using the hwnd=HANDLER syntax
-- IAMF raw demuxer and muxer
-- D3D12VA hardware accelerated H264, HEVC, VP9, AV1, MPEG-2 and VC1 decoding
-- tiltandshift filter
-- qrencode filter and qrencodesrc source
-- quirc filter
-- lavu/eval: introduce randomi() function in expressions
-- VVC decoder (experimental)
-- fsync filter
-- Raw Captions with Time (RCWT) closed caption muxer
-- ffmpeg CLI -bsf option may now be used for input as well as output
-- ffmpeg CLI options may now be used as -/opt <path>, which is equivalent
-  to -opt <contents of file <path>>
-- showinfo bitstream filter
-- a C11-compliant compiler is now required; note that this requirement
-  will be bumped to C17 in the near future, so consider updating your
-  build environment if it lacks C17 support
-- Change the default bitrate control method from VBR to CQP for QSV encoders.
-- removed deprecated ffmpeg CLI options -psnr and -map_channel
-- DVD-Video demuxer, powered by libdvdnav and libdvdread
-- ffprobe -show_stream_groups option
-- ffprobe (with -export_side_data film_grain) now prints film grain metadata
-- AEA muxer
-- ffmpeg CLI loopback decoders
-- Support PacketTypeMetadata of PacketType in enhanced flv format
-- ffplay with hwaccel decoding support (depends on vulkan renderer via libplacebo)
-- dnn filter libtorch backend
-- Android content URIs protocol
-- AOMedia Film Grain Synthesis 1 (AFGS1)
-- RISC-V optimizations for AAC, FLAC, JPEG-2000, LPC, RV4.0, SVQ, VC1, VP8, and more
-- Loongarch optimizations for HEVC decoding
-- Important AArch64 optimizations for HEVC
-- IAMF support inside MP4/ISOBMFF
-- Support for HEIF/AVIF still images and tiled still images
-- Dolby Vision profile 10 support in AV1
-- Support for Ambient Viewing Environment metadata in MP4/ISOBMFF
-- HDR10 metadata passthrough when encoding with libx264, libx265, and libsvtav1
-
-
-version 6.1:
-- libaribcaption decoder
-- Playdate video decoder and demuxer
-- Extend VAAPI support for libva-win32 on Windows
-- afireqsrc audio source filter
-- arls filter
-- ffmpeg CLI new option: -readrate_initial_burst
-- zoneplate video source filter
-- command support in the setpts and asetpts filters
-- Vulkan decode hwaccel, supporting H264, HEVC and AV1
-- color_vulkan filter
-- bwdif_vulkan filter
-- nlmeans_vulkan filter
-- RivaTuner video decoder
-- xfade_vulkan filter
-- vMix video decoder
-- Essential Video Coding parser, muxer and demuxer
-- Essential Video Coding frame merge bsf
-- bwdif_cuda filter
-- Microsoft RLE video encoder
-- Raw AC-4 muxer and demuxer
-- Raw VVC bitstream parser, muxer and demuxer
-- Bitstream filter for editing metadata in VVC streams
-- Bitstream filter for converting VVC from MP4 to Annex B
-- scale_vt filter for videotoolbox
-- transpose_vt filter for videotoolbox
-- support for the P_SKIP hinting to speed up libx264 encoding
-- Support HEVC,VP9,AV1 codec in enhanced flv format
-- apsnr and asisdr audio filters
-- OSQ demuxer and decoder
-- Support HEVC,VP9,AV1 codec fourcclist in enhanced rtmp protocol
-- CRI USM demuxer
-- ffmpeg CLI '-top' option deprecated in favor of the setfield filter
-- VAAPI AV1 encoder
-- ffprobe XML output schema changed to account for multiple
-  variable-fields elements within the same parent element
-- ffprobe -output_format option added as an alias of -of
-
-# codespell:off
-
-version 6.0:
-- Radiance HDR image support
-- ddagrab (Desktop Duplication) video capture filter
-- ffmpeg -shortest_buf_duration option
-- ffmpeg now requires threading to be built
-- ffmpeg now runs every muxer in a separate thread
-- Add new mode to cropdetect filter to detect crop-area based on motion vectors and edges
-- VAAPI decoding and encoding for 10/12bit 422, 10/12bit 444 HEVC and VP9
-- WBMP (Wireless Application Protocol Bitmap) image format
-- a3dscope filter
-- bonk decoder and demuxer
-- Micronas SC-4 audio decoder
-- LAF demuxer
-- APAC decoder and demuxer
-- Media 100i decoders
-- DTS to PTS reorder bsf
-- ViewQuest VQC decoder
-- backgroundkey filter
-- nvenc AV1 encoding support
-- MediaCodec decoder via NDKMediaCodec
-- MediaCodec encoder
-- oneVPL support for QSV
-- QSV AV1 encoder
-- QSV decoding and encoding for 10/12bit 422, 10/12bit 444 HEVC and VP9
-- showcwt multimedia filter
-- corr video filter
-- adrc audio filter
-- afdelaysrc audio filter
-- WADY DPCM decoder and demuxer
-- CBD2 DPCM decoder
-- ssim360 video filter
-- ffmpeg CLI new options: -stats_enc_pre[_fmt], -stats_enc_post[_fmt],
-  -stats_mux_pre[_fmt]
-- hstack_vaapi, vstack_vaapi and xstack_vaapi filters
-- XMD ADPCM decoder and demuxer
-- media100 to mjpegb bsf
-- ffmpeg CLI new option: -fix_sub_duration_heartbeat
-- WavArc decoder and demuxer
-- CrystalHD decoders deprecated
-- SDNS demuxer
-- RKA decoder and demuxer
-- filtergraph syntax in ffmpeg CLI now supports passing file contents
-  as option values, by prefixing option name with '/'
-- hstack_qsv, vstack_qsv and xstack_qsv filters
-
-
-version 5.1:
-- add ipfs/ipns gateway support
-- dialogue enhance audio filter
-- dropped obsolete XvMC hwaccel
-- pcm-bluray encoder
-- DFPWM audio encoder/decoder and raw muxer/demuxer
-- SITI filter
-- Vizrt Binary Image encoder/decoder
-- avsynctest source filter
-- feedback video filter
-- pixelize video filter
-- colormap video filter
-- colorchart video source filter
-- multiply video filter
-- PGS subtitle frame merge bitstream filter
-- blurdetect filter
-- tiltshelf audio filter
-- QOI image format support
-- ffprobe -o option
-- virtualbass audio filter
-- VDPAU AV1 hwaccel
-- PHM image format support
-- remap_opencl filter
-- added chromakey_cuda filter
-- added bilateral_cuda filter
-
-
-version 5.0:
-- ADPCM IMA Westwood encoder
-- Westwood AUD muxer
-- ADPCM IMA Acorn Replay decoder
-- Argonaut Games CVG demuxer
-- Argonaut Games CVG muxer
-- Concatf protocol
-- afwtdn audio filter
-- audio and video segment filters
-- Apple Graphics (SMC) encoder
-- hsvkey and hsvhold video filters
-- adecorrelate audio filter
-- atilt audio filter
-- grayworld video filter
-- AV1 Low overhead bitstream format muxer
-- swscale slice threading
-- MSN Siren decoder
-- scharr video filter
-- apsyclip audio filter
-- morpho video filter
-- amr parser
-- (a)latency filters
-- GEM Raster image decoder
-- asdr audio filter
-- speex decoder
-- limitdiff video filter
-- xcorrelate video filter
-- varblur video filter
-- huesaturation video filter
-- colorspectrum source video filter
-- RTP packetizer for uncompressed video (RFC 4175)
-- bitpacked encoder
-- VideoToolbox VP9 hwaccel
-- VideoToolbox ProRes hwaccel
-- support loongarch.
-- aspectralstats audio filter
-- adynamicsmooth audio filter
-- libplacebo filter
-- vflip_vulkan, hflip_vulkan and flip_vulkan filters
-- adynamicequalizer audio filter
-- yadif_videotoolbox filter
-- VideoToolbox ProRes encoder
-- anlmf audio filter
-- IMF demuxer (experimental)
-
-
-version 4.4:
-- AudioToolbox output device
-- MacCaption demuxer
-- PGX decoder
-- chromanr video filter
-- VDPAU accelerated HEVC 10/12bit decoding
-- ADPCM IMA Ubisoft APM encoder
-- Rayman 2 APM muxer
-- AV1 encoding support SVT-AV1
-- Cineform HD encoder
-- ADPCM Argonaut Games encoder
-- Argonaut Games ASF muxer
-- AV1 Low overhead bitstream format demuxer
-- RPZA video encoder
-- ADPCM IMA MOFLEX decoder
-- MobiClip FastAudio decoder
-- MobiClip video decoder
-- MOFLEX demuxer
-- MODS demuxer
-- PhotoCD decoder
-- MCA demuxer
-- AV1 decoder (Hardware acceleration used only)
-- SVS demuxer
-- Argonaut Games BRP demuxer
-- DAT demuxer
-- aax demuxer
-- IPU decoder, parser and demuxer
-- Intel QSV-accelerated AV1 decoding
-- Argonaut Games Video decoder
-- libwavpack encoder removed
-- ACE demuxer
-- AVS3 demuxer
-- AVS3 video decoder via libuavs3d
-- Cintel RAW decoder
-- VDPAU accelerated VP9 10/12bit decoding
-- afreqshift and aphaseshift filters
-- High Voltage Software ADPCM encoder
-- LEGO Racers ALP (.tun & .pcm) muxer
-- AV1 VAAPI decoder
-- adenorm filter
-- ADPCM IMA AMV encoder
-- AMV muxer
-- NVDEC AV1 hwaccel
-- DXVA2/D3D11VA hardware accelerated AV1 decoding
-- speechnorm filter
-- SpeedHQ encoder
-- asupercut filter
-- asubcut filter
-- Microsoft Paint (MSP) version 2 decoder
-- Microsoft Paint (MSP) demuxer
-- AV1 monochrome encoding support via libaom >= 2.0.1
-- asuperpass and asuperstop filter
-- shufflepixels filter
-- tmidequalizer filter
-- estdif filter
-- epx filter
-- Dolby E parser
-- shear filter
-- kirsch filter
-- colortemperature filter
-- colorcontrast filter
-- PFM encoder
-- colorcorrect filter
-- binka demuxer
-- XBM parser
-- xbm_pipe demuxer
-- colorize filter
-- CRI parser
-- aexciter audio filter
-- exposure video filter
-- monochrome video filter
-- setts bitstream filter
-- vif video filter
-- OpenEXR image encoder
-- Simbiosis IMX decoder
-- Simbiosis IMX demuxer
-- Digital Pictures SGA demuxer and decoders
-- TTML subtitle encoder and muxer
-- identity video filter
-- msad video filter
-- gophers protocol
-- RIST protocol via librist
-
-
-version 4.3:
-- v360 filter
-- Intel QSV-accelerated MJPEG decoding
-- Intel QSV-accelerated VP9 decoding
-- Support for TrueHD in mp4
-- Support AMD AMF encoder on Linux (via Vulkan)
-- IMM5 video decoder
-- ZeroMQ protocol
-- support Sipro ACELP.KELVIN decoding
-- streamhash muxer
-- sierpinski video source
-- scroll video filter
-- photosensitivity filter
-- anlms filter
-- arnndn filter
-- bilateral filter
-- maskedmin and maskedmax filters
-- VDPAU VP9 hwaccel
-- median filter
-- QSV-accelerated VP9 encoding
-- AV1 encoding support via librav1e
-- AV1 frame merge bitstream filter
-- AV1 Annex B demuxer
-- axcorrelate filter
-- mvdv decoder
-- mvha decoder
-- MPEG-H 3D Audio support in mp4
-- thistogram filter
-- freezeframes filter
-- Argonaut Games ADPCM decoder
-- Argonaut Games ASF demuxer
-- xfade video filter
-- xfade_opencl filter
-- afirsrc audio filter source
-- pad_opencl filter
-- Simon & Schuster Interactive ADPCM decoder
-- Real War KVAG demuxer
-- CDToons video decoder
-- siren audio decoder
-- Rayman 2 ADPCM decoder
-- Rayman 2 APM demuxer
-- cas video filter
-- High Voltage Software ADPCM decoder
-- LEGO Racers ALP (.tun & .pcm) demuxer
-- AMQP 0-9-1 protocol (RabbitMQ)
-- Vulkan support
-- avgblur_vulkan, overlay_vulkan, scale_vulkan and chromaber_vulkan filters
-- ADPCM IMA MTF decoder
-- FWSE demuxer
-- DERF DPCM decoder
-- DERF demuxer
-- CRI HCA decoder
-- CRI HCA demuxer
-- overlay_cuda filter
-- switch from AvxSynth to AviSynth+ on Linux
-- mv30 decoder
-- Expanded styling support for 3GPP Timed Text Subtitles (movtext)
-- WebP parser
-- tmedian filter
-- maskedthreshold filter
-- Support for muxing pcm and pgs in m2ts
-- Cunning Developments ADPCM decoder
-- asubboost filter
-- Pro Pinball Series Soundbank demuxer
-- pcm_rechunk bitstream filter
-- scdet filter
-- NotchLC decoder
-- gradients source video filter
-- MediaFoundation encoder wrapper
-- untile filter
-- Simon & Schuster Interactive ADPCM encoder
-- PFM decoder
-- dblur video filter
-- Real War KVAG muxer
-
-
-version 4.2:
-- tpad filter
-- AV1 decoding support through libdav1d
-- dedot filter
-- chromashift and rgbashift filters
-- freezedetect filter
-- truehd_core bitstream filter
-- dhav demuxer
-- PCM-DVD encoder
-- GIF parser
-- vividas demuxer
-- hymt decoder
-- anlmdn filter
-- maskfun filter
-- hcom demuxer and decoder
-- ARBC decoder
-- libaribb24 based ARIB STD-B24 caption support (profiles A and C)
-- Support decoding of HEVC 4:4:4 content in nvdec and cuviddec
-- removed libndi-newtek
-- agm decoder
-- KUX demuxer
-- AV1 frame split bitstream filter
-- lscr decoder
-- lagfun filter
-- asoftclip filter
-- Support decoding of HEVC 4:4:4 content in vdpau
-- colorhold filter
-- xmedian filter
-- asr filter
-- showspatial multimedia filter
-- VP4 video decoder
-- IFV demuxer
-- derain filter
-- deesser filter
-- mov muxer writes tracks with unspecified language instead of English by default
-- add support for using clang to compile CUDA kernels
-
-
-version 4.1:
-- deblock filter
-- tmix filter
-- amplify filter
-- fftdnoiz filter
-- aderivative and aintegral audio filters
-- pal75bars and pal100bars video filter sources
-- support mbedTLS based TLS
-- adeclick filter
-- adeclip filter
-- libtensorflow backend for DNN based filters like srcnn
-- vc1 decoder is now bit-exact
-- ATRAC9 decoder
-- lensfun wrapper filter
-- colorconstancy filter
-- AVS2 video decoder via libdavs2
-- IMM4 video decoder
-- Brooktree ProSumer video decoder
-- MatchWare Screen Capture Codec decoder
-- WinCam Motion Video decoder
-- 1D LUT filter (lut1d)
-- RemotelyAnywhere Screen Capture decoder
-- cue and acue filters
-- support for AV1 in MP4
-- transpose_npp filter
-- AVS2 video encoder via libxavs2
-- amultiply filter
-- Block-Matching 3d (bm3d) denoising filter
-- acrossover filter
-- ilbc decoder
-- audio denoiser as afftdn filter
-- AV1 parser
-- SER demuxer
-- sinc audio filter source
-- chromahold filter
-- setparams filter
-- vibrance filter
-- decoding S12M timecode in h264
-- xstack filter
-- pcm vidc decoder and encoder
-- (a)graphmonitor filter
-- yadif_cuda filter
-
-
-version 4.0:
-- Bitstream filters for editing metadata in H.264, HEVC and MPEG-2 streams
-- Dropped support for OpenJPEG versions 2.0 and below. Using OpenJPEG now
-  requires 2.1 (or later) and pkg-config.
-- VDA dropped (use VideoToolbox instead)
-- MagicYUV encoder
-- Raw AMR-NB and AMR-WB demuxers
-- TiVo ty/ty+ demuxer
-- Intel QSV-accelerated MJPEG encoding
-- PCE support for extended channel layouts in the AAC encoder
-- native aptX and aptX HD encoder and decoder
-- Raw aptX and aptX HD muxer and demuxer
-- NVIDIA NVDEC-accelerated H.264, HEVC, MJPEG, MPEG-1/2/4, VC1, VP8/9 hwaccel decoding
-- Intel QSV-accelerated overlay filter
-- mcompand audio filter
-- acontrast audio filter
-- OpenCL overlay filter
-- video mix filter
-- video normalize filter
-- audio lv2 wrapper filter
-- VAAPI MJPEG and VP8 decoding
-- AMD AMF H.264 and HEVC encoders
-- video fillborders filter
-- video setrange filter
-- nsp demuxer
-- support LibreSSL (via libtls)
-- AVX-512/ZMM support added
-- Dropped support for building for Windows XP. The minimum supported Windows
-  version is Windows Vista.
-- deconvolve video filter
-- entropy video filter
-- hilbert audio filter source
-- aiir audio filter
-- aiff: add support for CD-ROM XA ADPCM
-- Removed the ffserver program
-- Removed the ffmenc and ffmdec muxer and demuxer
-- VideoToolbox HEVC encoder and hwaccel
-- VAAPI-accelerated ProcAmp (color balance), denoise and sharpness filters
-- Add android_camera indev
-- codec2 en/decoding via libcodec2
-- muxer/demuxer for raw codec2 files and .c2 files
-- Moved nvidia codec headers into an external repository.
-  They can be found at http://git.videolan.org/?p=ffmpeg/nv-codec-headers.git
-- native SBC encoder and decoder
-- drmeter audio filter
-- hapqa_extract bitstream filter
-- filter_units bitstream filter
-- AV1 Support through libaom
-- E-AC-3 dependent frames support
-- bitstream filter for extracting E-AC-3 core
-- Haivision SRT protocol via libsrt
-- segafilm muxer
-- vfrdet filter
-- SRCNN filter
-
-
-version 3.4:
-- deflicker video filter
-- doubleweave video filter
-- lumakey video filter
-- pixscope video filter
-- oscilloscope video filter
-- config.log and other configuration files moved into ffbuild/ directory
-- update cuvid/nvenc headers to Video Codec SDK 8.0.14
-- afir audio filter
-- scale_cuda CUDA based video scale filter
-- librsvg support for svg rasterization
-- crossfeed audio filter
-- spec compliant VP9 muxing support in MP4
-- remove the libnut muxer/demuxer wrappers
-- remove the libschroedinger encoder/decoder wrappers
-- surround audio filter
-- sofalizer filter switched to libmysofa
-- Gremlin Digital Video demuxer and decoder
-- headphone audio filter
-- superequalizer audio filter
-- roberts video filter
-- The x86 assembler default switched from yasm to nasm, pass
-  --x86asmexe=yasm to configure to restore the old behavior.
-- additional frame format support for Interplay MVE movies
-- support for decoding through D3D11VA in ffmpeg
-- limiter video filter
-- libvmaf video filter
-- Dolby E decoder and SMPTE 337M demuxer
-- unpremultiply video filter
-- tlut2 video filter
-- floodfill video filter
-- pseudocolor video filter
-- raw G.726 muxer and demuxer, left- and right-justified
-- NewTek NDI input/output device
-- Some video filters with several inputs now use a common set of options:
-  blend, libvmaf, lut3d, overlay, psnr, ssim.
-  They must always be used by name.
-- FITS demuxer and decoder
-- FITS muxer and encoder
-- add --disable-autodetect build switch
-- drop deprecated qtkit input device (use avfoundation instead)
-- despill video filter
-- haas audio filter
-- SUP/PGS subtitle muxer
-- convolve video filter
-- VP9 tile threading support
-- KMS screen grabber
-- CUDA thumbnail filter
-- V4L2 mem2mem HW assisted codecs
-- Rockchip MPP hardware decoding
-- vmafmotion video filter
-- use MIME type "G726" for little-endian G.726, "AAL2-G726" for big-endian G.726
-
-
-version 3.3:
-- CrystalHD decoder moved to new decode API
-- add internal ebur128 library, remove external libebur128 dependency
-- Pro-MPEG CoP #3-R2 FEC protocol
-- premultiply video filter
-- Support for spherical videos
-- configure now fails if autodetect-libraries are requested but not found
-- PSD Decoder
-- 16.8 floating point pcm decoder
-- 24.0 floating point pcm decoder
-- Apple Pixlet decoder
-- QDMC audio decoder
-- NewTek SpeedHQ decoder
-- MIDI Sample Dump Standard demuxer
-- readeia608 filter
-- Sample Dump eXchange demuxer
-- abitscope multimedia filter
-- Scenarist Closed Captions demuxer and muxer
-- threshold filter
-- midequalizer filter
-- Optimal Huffman tables for (M)JPEG encoding
-- VAAPI-accelerated MPEG-2 and VP8 encoding
-- FM Screen Capture Codec decoder
-- native Opus encoder
-- ScreenPressor decoder
-- incomplete ClearVideo decoder
-- Intel QSV video scaling and deinterlacing filters
-- Support MOV with multiple sample description tables
-- XPM decoder
-- Removed the legacy X11 screen grabber, use XCB instead
-- MPEG-7 Video Signature filter
-- Removed asyncts filter (use af_aresample instead)
-- Intel QSV-accelerated VP8 video decoding
-- VAAPI-accelerated deinterlacing
-
-
-version 3.2:
-- libopenmpt demuxer
-- tee protocol
-- Changed metadata print option to accept general urls
-- Alias muxer for Ogg Video (.ogv)
-- VP8 in Ogg muxing
-- curves filter doesn't automatically insert points at x=0 and x=1 anymore
-- 16-bit support in curves filter and selectivecolor filter
-- OpenH264 decoder wrapper
-- MediaCodec H.264/HEVC/MPEG-4/VP8/VP9 hwaccel
-- True Audio (TTA) muxer
-- crystalizer audio filter
-- acrusher audio filter
-- bitplanenoise video filter
-- floating point support in als decoder
-- fifo muxer
-- maskedclamp filter
-- hysteresis filter
-- lut2 filter
-- yuvtestsrc filter
-- CUDA CUVID H.263/VP8/VP9/10 bit HEVC (Dithered) Decoding
-- vaguedenoiser filter
-- added threads option per filter instance
-- weave filter
-- gblur filter
-- avgblur filter
-- sobel and prewitt filter
-- MediaCodec HEVC/MPEG-4/VP8/VP9 decoding
-- Meridian Lossless Packing (MLP) / TrueHD encoder
-- Non-Local Means (nlmeans) denoising filter
-- sdl2 output device and ffplay support
-- sdl1 output device and sdl1 support removed
-- extended mov edit list support
-- libfaac encoder removed
-- Matroska muxer now writes CRC32 elements by default in all Level 1 elements
-- sidedata video and asidedata audio filter
-- Changed mapping of rtp MIME type G726 to codec g726le.
-- spec compliant VAAPI/DXVA2 VC-1 decoding of slices in frame-coded images
-
-
-version 3.1:
-- DXVA2-accelerated HEVC Main10 decoding
-- fieldhint filter
-- loop video filter and aloop audio filter
-- Bob Weaver deinterlacing filter
-- firequalizer filter
-- datascope filter
-- bench and abench filters
-- ciescope filter
-- protocol blacklisting API
-- MediaCodec H264 decoding
-- VC-2 HQ RTP payload format (draft v1) depacketizer and packetizer
-- VP9 RTP payload format (draft v2) packetizer
-- AudioToolbox audio decoders
-- AudioToolbox audio encoders
-- coreimage filter (GPU based image filtering on OSX)
-- libdcadec removed
-- bitstream filter for extracting DTS core
-- ADPCM IMA DAT4 decoder
-- musx demuxer
-- aix demuxer
-- remap filter
-- hash and framehash muxers
-- colorspace filter
-- hdcd filter
-- readvitc filter
-- VAAPI-accelerated format conversion and scaling
-- libnpp/CUDA-accelerated format conversion and scaling
-- Duck TrueMotion 2.0 Real Time decoder
-- Wideband Single-bit Data (WSD) demuxer
-- VAAPI-accelerated H.264/HEVC/MJPEG encoding
-- DTS Express (LBR) decoder
-- Generic OpenMAX IL encoder with support for Raspberry Pi
-- IFF ANIM demuxer & decoder
-- Direct Stream Transfer (DST) decoder
-- loudnorm filter
-- MTAF demuxer and decoder
-- MagicYUV decoder
-- OpenExr improvements (tile data and B44/B44A support)
-- BitJazz SheerVideo decoder
-- CUDA CUVID H264/HEVC decoder
-- 10-bit depth support in native utvideo decoder
-- libutvideo wrapper removed
-- YUY2 Lossless Codec decoder
-- VideoToolbox H.264 encoder
-
-
-version 3.0:
-- Common Encryption (CENC) MP4 encoding and decoding support
-- DXV decoding
-- extrastereo filter
-- ocr filter
-- alimiter filter
-- stereowiden filter
-- stereotools filter
-- rubberband filter
-- tremolo filter
-- agate filter
-- chromakey filter
-- maskedmerge filter
-- Screenpresso SPV1 decoding
-- chromaprint fingerprinting muxer
-- ffplay dynamic volume control
-- displace filter
-- selectivecolor filter
-- extensive native AAC encoder improvements and removal of experimental flag
-- ADPCM PSX decoder
-- 3dostr, dcstr, fsb, genh, vag, xvag, ads, msf, svag & vpk demuxer
-- zscale filter
-- wve demuxer
-- zero-copy Intel QSV transcoding in ffmpeg
-- shuffleframes filter
-- SDX2 DPCM decoder
-- vibrato filter
-- innoHeim/Rsupport Screen Capture Codec decoder
-- ADPCM AICA decoder
-- Interplay ACM demuxer and audio decoder
-- XMA1 & XMA2 decoder
-- realtime filter
-- anoisesrc audio filter source
-- IVR demuxer
-- compensationdelay filter
-- acompressor filter
-- support encoding 16-bit RLE SGI images
-- apulsator filter
-- sidechaingate audio filter
-- mipsdspr1 option has been renamed to mipsdsp
-- aemphasis filter
-- mips32r5 option has been removed
-- mips64r6 option has been removed
-- DXVA2-accelerated VP9 decoding
-- SOFAlizer: virtual binaural acoustics filter
-- VAAPI VP9 hwaccel
-- audio high-order multiband parametric equalizer
-- automatic bitstream filtering
-- showspectrumpic filter
-- libstagefright support removed
-- spectrumsynth filter
-- ahistogram filter
-- only seek with the right mouse button in ffplay
-- toggle full screen when double-clicking with the left mouse button in ffplay
-- afftfilt filter
-- convolution filter
-- libquvi support removed
-- support for dvaudio in wav and avi
-- libaacplus and libvo-aacenc support removed
-- Cineform HD decoder
-- new DCA decoder with full support for DTS-HD extensions
-- significant performance improvements in Windows Television (WTV) demuxer
-- nnedi deinterlacer
-- streamselect video and astreamselect audio filter
-- swaprect filter
-- metadata video and ametadata audio filter
-- SMPTE VC-2 HQ profile support for the Dirac decoder
-- SMPTE VC-2 native encoder supporting the HQ profile
-
-
-version 2.8:
-- colorkey video filter
-- BFSTM/BCSTM demuxer
-- little-endian ADPCM_THP decoder
-- Hap decoder and encoder
-- DirectDraw Surface image/texture decoder
-- ssim filter
-- optional new ASF demuxer
-- showvolume filter
-- Many improvements to the JPEG 2000 decoder
-- Go2Meeting decoding support
-- adrawgraph audio and drawgraph video filter
-- removegrain video filter
-- Intel QSV-accelerated MPEG-2 video and HEVC encoding
-- Intel QSV-accelerated MPEG-2 video and HEVC decoding
-- Intel QSV-accelerated VC-1 video decoding
-- libkvazaar HEVC encoder
-- erosion, dilation, deflate and inflate video filters
-- Dynamic Audio Normalizer as dynaudnorm filter
-- Reverse video and areverse audio filter
-- Random filter
-- deband filter
-- AAC fixed-point decoding
-- sidechaincompress audio filter
-- bitstream filter for converting HEVC from MP4 to Annex B
-- acrossfade audio filter
-- allyuv and allrgb video sources
-- atadenoise video filter
-- OS X VideoToolbox support
-- aphasemeter filter
-- showfreqs filter
-- vectorscope filter
-- waveform filter
-- hstack and vstack filter
-- Support DNx100 (1440x1080@8)
-- VAAPI hevc hwaccel
-- VDPAU hevc hwaccel
-- framerate filter
-- Switched default encoders for webm to VP9 and Opus
-- Removed experimental flag from the JPEG 2000 encoder
-
-
-version 2.7:
-- FFT video filter
-- TDSC decoder
-- DTS lossless extension (XLL) decoding (not lossless, disabled by default)
-- showwavespic filter
-- DTS decoding through libdcadec
-- Drop support for nvenc API before 5.0
-- nvenc HEVC encoder
-- Detelecine filter
-- Intel QSV-accelerated H.264 encoding
-- MMAL-accelerated H.264 decoding
-- basic APNG encoder and muxer with default extension "apng"
-- unpack DivX-style packed B-frames in MPEG-4 bitstream filter
-- WebM Live Chunk Muxer
-- nvenc level and tier options
-- chorus filter
-- Canopus HQ/HQA decoder
-- Automatically rotate videos based on metadata in ffmpeg
-- improved Quickdraw compatibility
-- VP9 high bit-depth and extended colorspaces decoding support
-- WebPAnimEncoder API when available for encoding and muxing WebP
-- Direct3D11-accelerated decoding
-- Support Secure Transport
-- Multipart JPEG demuxer
-
-
-version 2.6:
-- nvenc encoder
-- 10bit spp filter
-- colorlevels filter
-- RIFX format for *.wav files
-- RTP/mpegts muxer
-- non continuous cache protocol support
-- tblend filter
-- cropdetect support for non 8bpp, absolute (if limit >= 1) and relative (if limit < 1.0) threshold
-- Camellia symmetric block cipher
-- OpenH264 encoder wrapper
-- VOC seeking support
-- Closed caption Decoder
-- fspp, uspp, pp7 MPlayer postprocessing filters ported to native filters
-- showpalette filter
-- Twofish symmetric block cipher
-- Support DNx100 (960x720@8)
-- eq2 filter ported from libmpcodecs as eq filter
-- removed libmpcodecs
-- Changed default DNxHD colour range in QuickTime .mov derivatives to mpeg range
-- ported softpulldown filter from libmpcodecs as repeatfields filter
-- dcshift filter
-- RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
-- RTP depacketizer for AC3 payload format (RFC 4184)
-- palettegen and paletteuse filters
-- VP9 RTP payload format (draft 0) experimental depacketizer
-- RTP depacketizer for DV (RFC 6469)
-- DXVA2-accelerated HEVC decoding
-- AAC ELD 480 decoding
-- Intel QSV-accelerated H.264 decoding
-- DSS SP decoder and DSS demuxer
-- Fix stsd atom corruption in DNxHD QuickTimes
-- Canopus HQX decoder
-- RTP depacketization of T.140 text (RFC 4103)
-- Port MIPS optimizations to 64-bit
-
-
-version 2.5:
-- HEVC/H.265 RTP payload format (draft v6) packetizer
-- SUP/PGS subtitle demuxer
-- ffprobe -show_pixel_formats option
-- CAST128 symmetric block cipher, ECB mode
-- STL subtitle demuxer and decoder
-- libutvideo YUV 4:2:2 10bit support
-- XCB-based screen-grabber
-- UDP-Lite support (RFC 3828)
-- xBR scaling filter
-- AVFoundation screen capturing support
-- ffserver supports codec private options
-- creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
-- WebP muxer with animated WebP support
-- zygoaudio decoding support
-- APNG demuxer
-- postproc visualization support
-
-
-version 2.4:
-- Icecast protocol
-- ported lenscorrection filter from frei0r filter
-- large optimizations in dctdnoiz to make it usable
-- ICY metadata are now requested by default with the HTTP protocol
-- support for using metadata in stream specifiers in fftools
-- LZMA compression support in TIFF decoder
-- H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
-- HEVC/H.265 RTP payload format (draft v6) depacketizer
-- added codecview filter to visualize information exported by some codecs
-- Matroska 3D support thorugh side data
-- HTML generation using texi2html is deprecated in favor of makeinfo/texi2any
-- silenceremove filter
-
-
-version 2.3:
-- AC3 fixed-point decoding
-- shuffleplanes filter
-- subfile protocol
-- Phantom Cine demuxer
-- replaygain data export
-- VP7 video decoder
-- Alias PIX image encoder and decoder
-- Improvements to the BRender PIX image decoder
-- Improvements to the XBM decoder
-- QTKit input device
-- improvements to OpenEXR image decoder
-- support decoding 16-bit RLE SGI images
-- GDI screen grabbing for Windows
-- alternative rendition support for HTTP Live Streaming
-- AVFoundation input device
-- Direct Stream Digital (DSD) decoder
-- Magic Lantern Video (MLV) demuxer
-- On2 AVC (Audio for Video) decoder
-- support for decoding through DXVA2 in ffmpeg
-- libbs2b-based stereo-to-binaural audio filter
-- libx264 reference frames count limiting depending on level
-- native Opus decoder
-- display matrix export and rotation API
-- WebVTT encoder
-- showcqt multimedia filter
-- zoompan filter
-- signalstats filter
-- hqx filter (hq2x, hq3x, hq4x)
-- flanger filter
-- Image format auto-detection
-- LRC demuxer and muxer
-- Samba protocol (via libsmbclient)
-- WebM DASH Manifest muxer
-- libfribidi support in drawtext
-
-
-version 2.2:
-
-- HNM version 4 demuxer and video decoder
-- Live HDS muxer
-- setsar/setdar filters now support variables in ratio expressions
-- elbg filter
-- string validation in ffprobe
-- support for decoding through VDPAU in ffmpeg (the -hwaccel option)
-- complete Voxware MetaSound decoder
-- remove mp3_header_compress bitstream filter
-- Windows resource files for shared libraries
-- aeval filter
-- stereoscopic 3d metadata handling
-- WebP encoding via libwebp
-- ATRAC3+ decoder
-- VP8 in Ogg demuxing
-- side & metadata support in NUT
-- framepack filter
-- XYZ12 rawvideo support in NUT
-- Exif metadata support in WebP decoder
-- OpenGL device
-- Use metadata_header_padding to control padding in ID3 tags (currently used in
-  MP3, AIFF, and OMA files), FLAC header, and the AVI "junk" block.
-- Mirillis FIC video decoder
-- Support DNx444
-- libx265 encoder
-- dejudder filter
-- Autodetect VDA like all other hardware accelerations
-- aliases and defaults for Ogg subtypes (opus, spx)
-
-
-version 2.1:
-
-- aecho filter
-- perspective filter ported from libmpcodecs
-- ffprobe -show_programs option
-- compand filter
-- RTMP seek support
-- when transcoding with ffmpeg (i.e. not streamcopying), -ss is now accurate
-  even when used as an input option. Previous behavior can be restored with
-  the -noaccurate_seek option.
-- ffmpeg -t option can now be used for inputs, to limit the duration of
-  data read from an input file
-- incomplete Voxware MetaSound decoder
-- read EXIF metadata from JPEG
-- DVB teletext decoder
-- phase filter ported from libmpcodecs
-- w3fdif filter
-- Opus support in Matroska
-- FFV1 version 1.3 is stable and no longer experimental
-- FFV1: YUVA(444,422,420) 9, 10 and 16 bit support
-- changed DTS stream id in lavf mpeg ps muxer from 0x8a to 0x88, to be
-  more consistent with other muxers.
-- adelay filter
-- pullup filter ported from libmpcodecs
-- ffprobe -read_intervals option
-- Lossless and alpha support for WebP decoder
-- Error Resilient AAC syntax (ER AAC LC) decoding
-- Low Delay AAC (ER AAC LD) decoding
-- mux chapters in ASF files
-- SFTP protocol (via libssh)
-- libx264: add ability to encode in YUVJ422P and YUVJ444P
-- Fraps: use BT.709 colorspace by default for yuv, as reference fraps decoder does
-- make decoding alpha optional for prores, ffv1 and vp6 by setting
-  the skip_alpha flag.
-- ladspa wrapper filter
-- native VP9 decoder
-- dpx parser
-- max_error_rate parameter in ffmpeg
-- PulseAudio output device
-- ReplayGain scanner
-- Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
-- Linux framebuffer output device
-- HEVC decoder
-- raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
-- mergeplanes filter
-
-
-version 2.0:
-
-- curves filter
-- reference-counting for AVFrame and AVPacket data
-- ffmpeg now fails when input options are used for output file
-  or vice versa
-- support for Monkey's Audio versions from 3.93
-- perms and aperms filters
-- audio filtering support in ffplay
-- 10% faster aac encoding on x86 and MIPS
-- sine audio filter source
-- WebP demuxing and decoding support
-- ffmpeg options -filter_script and -filter_complex_script, which allow a
-  filtergraph description to be read from a file
-- OpenCL support
-- audio phaser filter
-- separatefields filter
-- libquvi demuxer
-- uniform options syntax across all filters
-- telecine filter
-- interlace filter
-- smptehdbars source
-- inverse telecine filters (fieldmatch and decimate)
-- colorbalance filter
-- colorchannelmixer filter
-- The matroska demuxer can now output proper verbatim ASS packets. It will
-  become the default at the next libavformat major bump.
-- decent native animated GIF encoding
-- asetrate filter
-- interleave filter
-- timeline editing with filters
-- vidstabdetect and vidstabtransform filters for video stabilization using
-  the vid.stab library
-- astats filter
-- trim and atrim filters
-- ffmpeg -t and -ss (output-only) options are now sample-accurate when
-  transcoding audio
-- Matroska muxer can now put the index at the beginning of the file.
-- extractplanes filter
-- avectorscope filter
-- ADPCM DTK decoder
-- ADP demuxer
-- RSD demuxer
-- RedSpark demuxer
-- ADPCM IMA Radical decoder
-- zmq filters
-- DCT denoiser filter (dctdnoiz)
-- Wavelet denoiser filter ported from libmpcodecs as owdenoise (formerly "ow")
-- Apple Intermediate Codec decoder
-- Escape 130 video decoder
-- FTP protocol support
-- V4L2 output device
-- 3D LUT filter (lut3d)
-- SMPTE 302M audio encoder
-- support for slice multithreading in libavfilter
-- Hald CLUT support (generation and filtering)
-- VC-1 interlaced B-frame support
-- support for WavPack muxing (raw and in Matroska)
-- XVideo output device
-- vignette filter
-- True Audio (TTA) encoder
-- Go2Webinar decoder
-- mcdeint filter ported from libmpcodecs
-- sab filter ported from libmpcodecs
-- ffprobe -show_chapters option
-- WavPack encoding through libwavpack
-- rotate filter
-- spp filter ported from libmpcodecs
-- libgme support
-- psnr filter
-
-
-version 1.2:
-
-- VDPAU hardware acceleration through normal hwaccel
-- SRTP support
-- Error diffusion dither in Swscale
-- Chained Ogg support
-- Theora Midstream reconfiguration support
-- EVRC decoder
-- audio fade filter
-- filtering audio with unknown channel layout
-- allpass, bass, bandpass, bandreject, biquad, equalizer, highpass, lowpass
-  and treble audio filter
-- improved showspectrum filter, with multichannel support and sox-like colors
-- histogram filter
-- tee muxer
-- il filter ported from libmpcodecs
-- support ID3v2 tags in ASF files
-- encrypted TTA stream decoding support
-- RF64 support in WAV muxer
-- noise filter ported from libmpcodecs
-- Subtitles character encoding conversion
-- blend filter
-- stereo3d filter ported from libmpcodecs
-
-
-version 1.1:
-
-- stream disposition information printing in ffprobe
-- filter for loudness analysis following EBU R128
-- Opus encoder using libopus
-- ffprobe -select_streams option
-- Pinnacle TARGA CineWave YUV16 decoder
-- TAK demuxer, decoder and parser
-- DTS-HD demuxer
-- remove -same_quant, it hasn't worked for years
-- FFM2 support
-- X-Face image encoder and decoder
-- 24-bit FLAC encoding
-- multi-channel ALAC encoding up to 7.1
-- metadata (INFO tag) support in WAV muxer
-- subtitles raw text decoder
-- support for building DLLs using MSVC
-- LVF demuxer
-- ffescape tool
-- metadata (info chunk) support in CAF muxer
-- field filter ported from libmpcodecs
-- AVR demuxer
-- geq filter ported from libmpcodecs
-- remove ffserver daemon mode
-- AST muxer/demuxer
-- new expansion syntax for drawtext
-- BRender PIX image decoder
-- ffprobe -show_entries option
-- ffprobe -sections option
-- ADPCM IMA Dialogic decoder
-- BRSTM demuxer
-- animated GIF decoder and demuxer
-- PVF demuxer
-- subtitles filter
-- IRCAM muxer/demuxer
-- Paris Audio File demuxer
-- Virtual concatenation demuxer
-- VobSub demuxer
-- JSON captions for TED talks decoding support
-- SOX Resampler support in libswresample
-- aselect filter
-- SGI RLE 8-bit / Silicon Graphics RLE 8-bit video decoder
-- Silicon Graphics Motion Video Compressor 1 & 2 decoder
-- Silicon Graphics Movie demuxer
-- apad filter
-- Resolution & pixel format change support with multithreading for H.264
-- documentation split into per-component manuals
-- pp (postproc) filter ported from MPlayer
-- NIST Sphere demuxer
-- MPL2, VPlayer, MPlayer, AQTitle, PJS and SubViewer v1 subtitles demuxers and decoders
-- Sony Wave64 muxer
-- adobe and limelight publisher authentication in RTMP
-- data: URI scheme
-- support building on the Plan 9 operating system
-- kerndeint filter ported from MPlayer
-- histeq filter ported from VirtualDub
-- Megalux Frame demuxer
-- 012v decoder
-- Improved AVC Intra decoding support
-
-
-version 1.0:
-
-- INI and flat output in ffprobe
-- Scene detection in libavfilter
-- Indeo Audio decoder
-- channelsplit audio filter
-- setnsamples audio filter
-- atempo filter
-- ffprobe -show_data option
-- RTMPT protocol support
-- iLBC encoding/decoding via libilbc
-- Microsoft Screen 1 decoder
-- join audio filter
-- audio channel mapping filter
-- Microsoft ATC Screen decoder
-- RTSP listen mode
-- TechSmith Screen Codec 2 decoder
-- AAC encoding via libfdk-aac
-- Microsoft Expression Encoder Screen decoder
-- RTMPS protocol support
-- RTMPTS protocol support
-- RTMPE protocol support
-- RTMPTE protocol support
-- showwaves and showspectrum filter
-- LucasArts SMUSH SANM playback support
-- LucasArts SMUSH VIMA audio decoder (ADPCM)
-- LucasArts SMUSH demuxer
-- SAMI, RealText and SubViewer demuxers and decoders
-- Heart Of Darkness PAF playback support
-- iec61883 device
-- asettb filter
-- new option: -progress
-- 3GPP Timed Text encoder/decoder
-- GeoTIFF decoder support
-- ffmpeg -(no)stdin option
-- Opus decoder using libopus
-- caca output device using libcaca
-- alphaextract and alphamerge filters
-- concat filter
-- flite filter
-- Canopus Lossless Codec decoder
-- bitmap subtitles in filters (experimental and temporary)
-- MP2 encoding via TwoLAME
-- bmp parser
-- smptebars source
-- asetpts filter
-- hue filter
-- ICO muxer
-- SubRip encoder and decoder without embedded timing
-- edge detection filter
-- framestep filter
-- ffmpeg -shortest option is now per-output file
-  -pass and -passlogfile are now per-output stream
-- volume measurement filter
-- Ut Video encoder
-- Microsoft Screen 2 decoder
-- smartblur filter ported from MPlayer
-- CPiA decoder
-- decimate filter ported from MPlayer
-- RTP depacketization of JPEG
-- Smooth Streaming live segmenter muxer
-- F4V muxer
-- sendcmd and asendcmd filters
-- WebVTT demuxer and decoder (simple tags supported)
-- RTP packetization of JPEG
-- faststart option in the MOV/MP4 muxer
-- support for building with MSVC
-
-
-version 0.11:
-
-- Fixes: CVE-2012-2772, CVE-2012-2774, CVE-2012-2775, CVE-2012-2776, CVE-2012-2777,
-         CVE-2012-2779, CVE-2012-2782, CVE-2012-2783, CVE-2012-2784, CVE-2012-2785,
-         CVE-2012-2786, CVE-2012-2787, CVE-2012-2788, CVE-2012-2789, CVE-2012-2790,
-         CVE-2012-2791, CVE-2012-2792, CVE-2012-2793, CVE-2012-2794, CVE-2012-2795,
-         CVE-2012-2796, CVE-2012-2797, CVE-2012-2798, CVE-2012-2799, CVE-2012-2800,
-         CVE-2012-2801, CVE-2012-2802, CVE-2012-2803, CVE-2012-2804,
-- v408 Quicktime and Microsoft AYUV Uncompressed 4:4:4:4 encoder and decoder
-- setfield filter
-- CDXL demuxer and decoder
-- Apple ProRes encoder
-- ffprobe -count_packets and -count_frames options
-- Sun Rasterfile Encoder
-- ID3v2 attached pictures reading and writing
-- WMA Lossless decoder
-- bluray protocol
-- blackdetect filter
-- libutvideo encoder wrapper (--enable-libutvideo)
-- swapuv filter
-- bbox filter
-- XBM encoder and decoder
-- RealAudio Lossless decoder
-- ZeroCodec decoder
-- tile video filter
-- Metal Gear Solid: The Twin Snakes demuxer
-- OpenEXR image decoder
-- removelogo filter
-- drop support for ffmpeg without libavfilter
-- drawtext video filter: fontconfig support
-- ffmpeg -benchmark_all option
-- super2xsai filter ported from libmpcodecs
-- add libavresample audio conversion library for compatibility
-- MicroDVD decoder
-- Avid Meridien (AVUI) encoder and decoder
-- accept + prefix to -pix_fmt option to disable automatic conversions.
-- complete audio filtering in libavfilter and ffmpeg
-- add fps filter
-- vorbis parser
-- png parser
-- audio mix filter
-- ffv1: support (draft) version 1.3
-
-
-version 0.10:
-
-- Fixes: CVE-2011-3929, CVE-2011-3934, CVE-2011-3935, CVE-2011-3936,
-         CVE-2011-3937, CVE-2011-3940, CVE-2011-3941, CVE-2011-3944,
-         CVE-2011-3945, CVE-2011-3946, CVE-2011-3947, CVE-2011-3949,
-         CVE-2011-3950, CVE-2011-3951, CVE-2011-3952
-- v410 Quicktime Uncompressed 4:4:4 10-bit encoder and decoder
-- SBaGen (SBG) binaural beats script demuxer
-- OpenMG Audio muxer
-- Timecode extraction in DV and MOV
-- thumbnail video filter
-- XML output in ffprobe
-- asplit audio filter
-- tinterlace video filter
-- astreamsync audio filter
-- amerge audio filter
-- ISMV (Smooth Streaming) muxer
-- GSM audio parser
-- SMJPEG muxer
-- XWD encoder and decoder
-- Automatic thread count based on detection number of (available) CPU cores
-- y41p Brooktree Uncompressed 4:1:1 12-bit encoder and decoder
-- ffprobe -show_error option
-- Avid 1:1 10-bit RGB Packer codec
-- v308 Quicktime Uncompressed 4:4:4 encoder and decoder
-- yuv4 libquicktime packed 4:2:0 encoder and decoder
-- ffprobe -show_frames option
-- silencedetect audio filter
-- ffprobe -show_program_version, -show_library_versions, -show_versions options
-- rv34: frame-level multi-threading
-- optimized iMDCT transform on x86 using SSE for for mpegaudiodec
-- Improved PGS subtitle decoder
-- dumpgraph option to lavfi device
-- r210 and r10k encoders
-- ffwavesynth decoder
-- aviocat tool
-- ffeval tool
-- support encoding and decoding 4-channel SGI images
-
-
-version 0.9:
-
-- openal input device added
-- boxblur filter added
-- BWF muxer
-- Flash Screen Video 2 decoder
-- lavfi input device added
-- added avconv, which is almost the same for now, except
-for a few incompatible changes in the options, which will hopefully make them
-easier to use. The changes are:
-    * The options placement is now strictly enforced! While in theory the
-      options for ffmpeg should be given in [input options] -i INPUT [output
-      options] OUTPUT order, in practice it was possible to give output options
-      before the -i and it mostly worked. Except when it didn't - the behavior was
-      a bit inconsistent. In avconv, it is not possible to mix input and output
-      options. All non-global options are reset after an input or output filename.
-    * All per-file options are now truly per-file - they apply only to the next
-      input or output file and specifying different values for different files
-      will now work properly (notably -ss and -t options).
-    * All per-stream options are now truly per-stream - it is possible to
-      specify which stream(s) should a given option apply to. See the Stream
-      specifiers section in the avconv manual for details.
-    * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
-      sense that they're specified after the output filename instead of before,
-      like all other options. In avconv this irregularity is removed, all options
-      apply to the next input or output file.
-    * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
-      irregular and highly confusing, they were also redundant. In avconv the -map
-      option will create new streams in the output file and map input streams to
-      them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
-      each stream in the first input file.
-    * The -map option now has slightly different and more powerful syntax:
-        + Colons (':') are used to separate file index/stream type/stream index
-          instead of dots. Comma (',') is used to separate the sync stream instead
-          of colon.. This is done for consistency with other options.
-        + It's possible to specify stream type. E.g. -map 0:a:2 creates an
-          output stream from the third input audio stream.
-        + Omitting the stream index now maps all the streams of the given type,
-          not just the first. E.g. -map 0:s creates output streams for all the
-          subtitle streams in the first input file.
-        + Since -map can now match multiple streams, negative mappings were
-          introduced. Negative mappings disable some streams from an already
-          defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
-          all the stream in the first input file, except for the second audio
-          stream'.
-    * There is a new option -c (or -codec) for choosing the decoder/encoder to
-      use, which makes it possible to precisely specify target stream(s) consistently with
-      other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
-      libvorbis sets the codec for the first audio stream and -c copy copies all
-      the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
-      aliases to -c:v/a/s
-    * It is now possible to precisely specify which stream should an AVOption
-      apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
-      -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
-      syntax is deprecated and will stop working soon.
-    * -map_chapters now takes only an input file index and applies to the next
-      output file. This is consistent with how all the other options work.
-    * -map_metadata now takes only an input metadata specifier and applies to
-      the next output file. Output metadata specifier is now part of the option
-      name, similarly to the AVOptions/map/codec feature above.
-    * -metadata can now be used to set metadata on streams and chapters, e.g.
-      -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
-      This made -vlang/-alang/-slang options redundant, so they were removed.
-    * -qscale option now uses stream specifiers and applies to all streams, not
-      just video. I.e. plain -qscale number would now apply to all streams. To get
-      the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
-      and -aq is now an alias for -q:a.
-    * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
-      uses stream specifiers. Use -bsf:v/a/s instead of the old options.
-    * -itsscale option now uses stream specifiers, so its argument is only the
-      scale parameter.
-    * -intra option was removed, use -g 0 for the same effect.
-    * -psnr option was removed, use -flags +psnr for the same effect.
-    * -vf option is now an alias to the new -filter option, which uses stream specifiers.
-    * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
-    * -vtag/-atag/-stag options are now aliases to the new -tag option.
-- XMV demuxer
-- LOAS demuxer
-- ashowinfo filter added
-- Windows Media Image decoder
-- amovie source added
-- LATM muxer/demuxer
-- Speex encoder via libspeex
-- JSON output in ffprobe
-- WTV muxer
-- Optional C++ Support (needed for libstagefright)
-- H.264 Decoding on Android via Stagefright
-- Prores decoder
-- BIN/XBIN/ADF/IDF text file decoder
-- aconvert audio filter added
-- audio support to lavfi input device added
-- libcdio-paranoia input device for audio CD grabbing
-- Apple ProRes decoder
-- CELT in Ogg demuxing
-- G.723.1 demuxer and decoder
-- libmodplug support (--enable-libmodplug)
-- VC-1 interlaced decoding
-- libutvideo wrapper (--enable-libutvideo)
-- aevalsrc audio source added
-- Ut Video decoder
-- Speex encoding via libspeex
-- 4:2:2 H.264 decoding support
-- 4:2:2 and 4:4:4 H.264 encoding with libx264
-- Pulseaudio input device
-- Prores encoder
-- Video Decoder Acceleration (VDA) HWAccel module.
-- replacement Indeo 3 decoder
-- new ffmpeg option: -map_channel
-- volume audio filter added
-- earwax audio filter added
-- libv4l2 support (--enable-libv4l2)
-- TLS/SSL and HTTPS protocol support
-- AVOptions API rewritten and documented
-- most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
-  AVCodecContext deprecated. Codec private options should be used instead.
-- Properly working defaults in libx264 wrapper, support for native presets.
-- Encrypted OMA files support
-- Discworld II BMV decoding support
-- VBLE Decoder
-- OS X Video Decoder Acceleration (VDA) support
-- compact and csv output in ffprobe
-- pan audio filter
-- IFF Amiga Continuous Bitmap (ACBM) decoder
-- ass filter
-- CRI ADX audio format muxer and demuxer
-- Playstation Portable PMP format demuxer
-- Microsoft Windows ICO demuxer
-- life source
-- PCM format support in OMA demuxer
-- CLJR encoder
-- new option: -report
-- Dxtory capture format decoder
-- cellauto source
-- Simple segmenting muxer
-- Indeo 4 decoder
-- SMJPEG demuxer
-
-
-version 0.8:
-
-- many many things we forgot because we rather write code than changelogs
-- WebM support in Matroska de/muxer
-- low overhead Ogg muxing
-- MMS-TCP support
-- VP8 de/encoding via libvpx
-- Demuxer for On2's IVF format
-- Pictor/PC Paint decoder
-- HE-AAC v2 decoder
-- HE-AAC v2 encoding with libaacplus
-- libfaad2 wrapper removed
-- DTS-ES extension (XCh) decoding support
-- native VP8 decoder
-- RTSP tunneling over HTTP
-- RTP depacketization of SVQ3
-- -strict inofficial replaced by -strict unofficial
-- ffplay -exitonkeydown and -exitonmousedown options added
-- native GSM / GSM MS decoder
-- RTP depacketization of QDM2
-- ANSI/ASCII art playback system
-- Lego Mindstorms RSO de/muxer
-- libavcore added (and subsequently removed)
-- SubRip subtitle file muxer and demuxer
-- Chinese AVS encoding via libxavs
-- ffprobe -show_packets option added
-- RTP packetization of Theora and Vorbis
-- RTP depacketization of MP4A-LATM
-- RTP packetization and depacketization of VP8
-- hflip filter
-- Apple HTTP Live Streaming demuxer
-- a64 codec
-- MMS-HTTP support
-- G.722 ADPCM audio encoder/decoder
-- R10k video decoder
-- ocv_smooth filter
-- frei0r wrapper filter
-- change crop filter syntax to width:height:x:y
-- make the crop filter accept parametric expressions
-- make ffprobe accept AVFormatContext options
-- yadif filter
-- blackframe filter
-- Demuxer for Leitch/Harris' VR native stream format (LXF)
-- RTP depacketization of the X-QT QuickTime format
-- SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
-- cropdetect filter
-- ffmpeg -crop* options removed
-- transpose filter added
-- ffmpeg -force_key_frames option added
-- demuxer for receiving raw rtp:// URLs without an SDP description
-- single stream LATM/LOAS decoder
-- setpts filter added
-- Win64 support for optimized x86 assembly functions
-- MJPEG/AVI1 to JPEG/JFIF bitstream filter
-- ASS subtitle encoder and decoder
-- IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
-- overlay filter added
-- rename aspect filter to setdar, and pixelaspect to setsar
-- IEC 61937 demuxer
-- Mobotix .mxg demuxer
-- frei0r source added
-- hqdn3d filter added
-- RTP depacketization of QCELP
-- FLAC parser added
-- gradfun filter added
-- AMR-WB decoder
-- replace the ocv_smooth filter with a more generic ocv filter
-- Windows Televison (WTV) demuxer
-- FFmpeg metadata format muxer and demuxer
-- SubRip (srt) subtitle encoder and decoder
-- floating-point AC-3 encoder added
-- Lagarith decoder
-- ffmpeg -copytb option added
-- IVF muxer added
-- Wing Commander IV movies decoder added
-- movie source added
-- Bink version 'b' audio and video decoder
-- Bitmap Brothers JV playback system
-- Apple HTTP Live Streaming protocol handler
-- sndio support for playback and record
-- Linux framebuffer input device added
-- Chronomaster DFA decoder
-- DPX image encoder
-- MicroDVD subtitle file muxer and demuxer
-- Playstation Portable PMP format demuxer
-- fieldorder video filter added
-- AAC encoding via libvo-aacenc
-- AMR-WB encoding via libvo-amrwbenc
-- xWMA demuxer
-- Mobotix MxPEG decoder
-- VP8 frame-multithreading
-- NEON optimizations for VP8
-- Lots of deprecated API cruft removed
-- fft and imdct optimizations for AVX (Sandy Bridge) processors
-- showinfo filter added
-- SMPTE 302M AES3 audio decoder
-- Apple Core Audio Format muxer
-- 9 bits and 10 bits per sample support in the H.264 decoder
-- 9 bits and 10 bits FFV1 encoding / decoding
-- split filter added
-- select filter added
-- sdl output device added
-- libmpcodecs video filter support (3 times as many filters than before)
-- mpeg2 aspect ratio dection fixed
-- libxvid aspect pickiness fixed
-- Frame multithreaded decoding
-- E-AC-3 audio encoder
-- ac3enc: add channel coupling support
-- floating-point sample format support to the ac3, eac3, dca, aac, and vorbis decoders.
-- H264/MPEG frame-level multi-threading
-- All av_metadata_* functions renamed to av_dict_* and moved to libavutil
-- 4:4:4 H.264 decoding support
-- 10-bit H.264 optimizations for x86
-- lut, lutrgb, and lutyuv filters added
-- buffersink libavfilter sink added
-- Bump libswscale for recently reported ABI break
-- New J2K encoder (via OpenJPEG)
-
-
-version 0.7:
-
-- all the changes for 0.8, but keeping API/ABI compatibility with the 0.6 release
-
-
-version 0.6:
-
-- PB-frame decoding for H.263
-- deprecated vhook subsystem removed
-- deprecated old scaler removed
-- VQF demuxer
-- Alpha channel scaler
-- PCX encoder
-- RTP packetization of H.263
-- RTP packetization of AMR
-- RTP depacketization of Vorbis
-- CorePNG decoding support
-- Cook multichannel decoding support
-- introduced avlanguage helpers in libavformat
-- 8088flex TMV demuxer and decoder
-- per-stream language-tags extraction in asfdec
-- V210 decoder and encoder
-- remaining GPL parts in AC-3 decoder converted to LGPL
-- QCP demuxer
-- SoX native format muxer and demuxer
-- AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
-- DPX image decoder
-- Electronic Arts Madcow decoder
-- DivX (XSUB) subtitle encoder
-- nonfree libamr support for AMR-NB/WB decoding/encoding removed
-- experimental AAC encoder
-- RTP depacketization of ASF and RTSP from WMS servers
-- RTMP support in libavformat
-- noX handling for OPT_BOOL X options
-- Wave64 demuxer
-- IEC-61937 compatible Muxer
-- TwinVQ decoder
-- Bluray (PGS) subtitle decoder
-- LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
-- WMA Pro decoder
-- Core Audio Format demuxer
-- ATRAC1 decoder
-- MD STUDIO audio demuxer
-- RF64 support in WAV demuxer
-- MPEG-4 Audio Lossless Coding (ALS) decoder
-- -formats option split into -formats, -codecs, -bsfs, and -protocols
-- IV8 demuxer
-- CDG demuxer and decoder
-- R210 decoder
-- Auravision Aura 1 and 2 decoders
-- Deluxe Paint Animation playback system
-- SIPR decoder
-- Adobe Filmstrip muxer and demuxer
-- RTP depacketization of H.263
-- Bink demuxer and audio/video decoders
-- enable symbol versioning by default for linkers that support it
-- IFF PBM/ILBM bitmap decoder
-- concat protocol
-- Indeo 5 decoder
-- RTP depacketization of AMR
-- WMA Voice decoder
-- ffprobe tool
-- AMR-NB decoder
-- RTSP muxer
-- HE-AAC v1 decoder
-- Kega Game Video (KGV1) decoder
-- VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
-- RTP depacketization of Theora
-- HTTP Digest authentication
-- RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
-- Psygnosis YOP demuxer and video decoder
-- spectral extension support in the E-AC-3 decoder
-- unsharp video filter
-- RTP hinting in the mov/3gp/mp4 muxer
-- Dirac in Ogg demuxing
-- seek to keyframes in Ogg
-- 4:2:2 and 4:4:4 Theora decoding
-- 35% faster VP3/Theora decoding
-- faster AAC decoding
-- faster H.264 decoding
-- RealAudio 1.0 (14.4K) encoder
-
-
-version 0.5:
-
-- DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
-- TechSmith Camtasia (TSCC) video decoder
-- IBM Ultimotion (ULTI) video decoder
-- Sierra Online audio file demuxer and decoder
-- Apple QuickDraw (qdrw) video decoder
-- Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
-- Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
-- Miro VideoXL (VIXL) video decoder
-- H.261 video encoder
-- QPEG video decoder
-- Nullsoft Video (NSV) file demuxer
-- Shorten audio decoder
-- LOCO video decoder
-- Apple Lossless Audio Codec (ALAC) decoder
-- Winnov WNV1 video decoder
-- Autodesk Animator Studio Codec (AASC) decoder
-- Indeo 2 video decoder
-- Fraps FPS1 video decoder
-- Snow video encoder/decoder
-- Sonic audio encoder/decoder
-- Vorbis audio decoder
-- Macromedia ADPCM decoder
-- Duck TrueMotion 2 video decoder
-- support for decoding FLX and DTA extensions in FLIC files
-- H.264 custom quantization matrices support
-- ffserver fixed, it should now be usable again
-- QDM2 audio decoder
-- Real Cooker audio decoder
-- TrueSpeech audio decoder
-- WMA2 audio decoder fixed, now all files should play correctly
-- RealAudio 14.4 and 28.8 decoders fixed
-- JPEG-LS decoder
-- build system improvements
-- tabs and trailing whitespace removed from the codebase
-- CamStudio video decoder
-- AIFF/AIFF-C audio format, encoding and decoding
-- ADTS AAC file reading and writing
-- Creative VOC file reading and writing
-- American Laser Games multimedia (*.mm) playback system
-- Zip Motion Blocks Video decoder
-- improved Theora/VP3 decoder
-- True Audio (TTA) decoder
-- AVS demuxer and video decoder
-- JPEG-LS encoder
-- Smacker demuxer and decoder
-- NuppelVideo/MythTV demuxer and RTjpeg decoder
-- KMVC decoder
-- MPEG-2 intra VLC support
-- MPEG-2 4:2:2 encoder
-- Flash Screen Video decoder
-- GXF demuxer
-- Chinese AVS decoder
-- GXF muxer
-- MXF demuxer
-- VC-1/WMV3/WMV9 video decoder
-- MacIntel support
-- AviSynth support
-- VMware video decoder
-- VP5 video decoder
-- VP6 video decoder
-- WavPack lossless audio decoder
-- Targa (.TGA) picture decoder
-- Vorbis audio encoder
-- Delphine Software .cin demuxer/audio and video decoder
-- Tiertex .seq demuxer/video decoder
-- MTV demuxer
-- TIFF picture encoder and decoder
-- GIF picture decoder
-- Intel Music Coder decoder
-- Zip Motion Blocks Video encoder
-- Musepack decoder
-- Flash Screen Video encoder
-- Theora encoding via libtheora
-- BMP encoder
-- WMA encoder
-- GSM-MS encoder and decoder
-- DCA decoder
-- DXA demuxer and decoder
-- DNxHD decoder
-- Gamecube movie (.THP) playback system
-- Blackfin optimizations
-- Interplay C93 demuxer and video decoder
-- Bethsoft VID demuxer and video decoder
-- CRYO APC demuxer
-- ATRAC3 decoder
-- V.Flash PTX decoder
-- RoQ muxer, RoQ audio encoder
-- Renderware TXD demuxer and decoder
-- extern C declarations for C++ removed from headers
-- sws_flags command line option
-- codebook generator
-- RoQ video encoder
-- QTRLE encoder
-- OS/2 support removed and restored again
-- AC-3 decoder
-- NUT muxer
-- additional SPARC (VIS) optimizations
-- Matroska muxer
-- slice-based parallel H.264 decoding
-- Monkey's Audio demuxer and decoder
-- AMV audio and video decoder
-- DNxHD encoder
-- H.264 PAFF decoding
-- Nellymoser ASAO decoder
-- Beam Software SIFF demuxer and decoder
-- libvorbis Vorbis decoding removed in favor of native decoder
-- IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
-- Ogg (Theora, Vorbis and FLAC) muxer
-- The "device" muxers and demuxers are now in a new libavdevice library
-- PC Paintbrush PCX decoder
-- Sun Rasterfile decoder
-- TechnoTrend PVA demuxer
-- Linux Media Labs MPEG-4 (LMLM4) demuxer
-- AVM2 (Flash 9) SWF muxer
-- QT variant of IMA ADPCM encoder
-- VFW grabber
-- iPod/iPhone compatible mp4 muxer
-- Mimic decoder
-- MSN TCP Webcam stream demuxer
-- RL2 demuxer / decoder
-- IFF demuxer
-- 8SVX audio decoder
-- non-recursive Makefiles
-- BFI demuxer
-- MAXIS EA XA (.xa) demuxer / decoder
-- BFI video decoder
-- OMA demuxer
-- MLP/TrueHD decoder
-- Electronic Arts CMV decoder
-- Motion Pixels Video decoder
-- Motion Pixels MVI demuxer
-- removed animated GIF decoder/demuxer
-- D-Cinema audio muxer
-- Electronic Arts TGV decoder
-- Apple Lossless Audio Codec (ALAC) encoder
-- AAC decoder
-- floating point PCM encoder/decoder
-- MXF muxer
-- DV100 AKA DVCPRO HD decoder and demuxer
-- E-AC-3 support added to AC-3 decoder
-- Nellymoser ASAO encoder
-- ASS and SSA demuxer and muxer
-- liba52 wrapper removed
-- SVQ3 watermark decoding support
-- Speex decoding via libspeex
-- Electronic Arts TGQ decoder
-- RV40 decoder
-- QCELP / PureVoice decoder
-- RV30 decoder
-- hybrid WavPack support
-- R3D REDCODE demuxer
-- ALSA support for playback and record
-- Electronic Arts TQI decoder
-- OpenJPEG based JPEG 2000 decoder
-- NC (NC4600) camera file demuxer
-- Gopher client support
-- MXF D-10 muxer
-- generic metadata API
-- flash ScreenVideo2 encoder
-
-
-version 0.4.9-pre1:
-
-- DV encoder, DV muxer
-- Microsoft RLE video decoder
-- Microsoft Video-1 decoder
-- Apple Animation (RLE) decoder
-- Apple Graphics (SMC) decoder
-- Apple Video (RPZA) decoder
-- Cinepak decoder
-- Sega FILM (CPK) file demuxer
-- Westwood multimedia support (VQA & AUD files)
-- Id Quake II CIN playback support
-- 8BPS video decoder
-- FLIC playback support
-- RealVideo 2.0 (RV20) decoder
-- Duck TrueMotion v1 (DUCK) video decoder
-- Sierra VMD demuxer and video decoder
-- MSZH and ZLIB decoder support
-- SVQ1 video encoder
-- AMR-WB support
-- PPC optimizations
-- rate distortion optimal cbp support
-- rate distorted optimal ac prediction for MPEG-4
-- rate distorted optimal lambda->qp support
-- AAC encoding with libfaac
-- Sunplus JPEG codec (SP5X) support
-- use Lagrange multiplier instead of QP for ratecontrol
-- Theora/VP3 decoding support
-- XA and ADX ADPCM codecs
-- export MPEG-2 active display area / pan scan
-- Add support for configuring with IBM XLC
-- floating point AAN DCT
-- initial support for zygo video (not complete)
-- RGB ffv1 support
-- new audio/video parser API
-- av_log() system
-- av_read_frame() and av_seek_frame() support
-- missing last frame fixes
-- seek by mouse in ffplay
-- noise reduction of DCT coefficients
-- H.263 OBMC & 4MV support
-- H.263 alternative inter vlc support
-- H.263 loop filter
-- H.263 slice structured mode
-- interlaced DCT support for MPEG-2 encoding
-- stuffing to stay above min_bitrate
-- MB type & QP visualization
-- frame stepping for ffplay
-- interlaced motion estimation
-- alternate scantable support
-- SVCD scan offset support
-- closed GOP support
-- SSE2 FDCT
-- quantizer noise shaping
-- G.726 ADPCM audio codec
-- MS ADPCM encoding
-- multithreaded/SMP motion estimation
-- multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
-- multithreaded/SMP decoding for MPEG-2
-- FLAC decoder
-- Metrowerks CodeWarrior suppport
-- H.263+ custom pcf support
-- nicer output for 'ffmpeg -formats'
-- Matroska demuxer
-- SGI image format, encoding and decoding
-- H.264 loop filter support
-- H.264 CABAC support
-- nicer looking arrows for the motion vector visualization
-- improved VCD support
-- audio timestamp drift compensation
-- MPEG-2 YUV 422/444 support
-- polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
-- better image scaling
-- H.261 support
-- correctly interleave packets during encoding
-- VIS optimized motion compensation
-- intra_dc_precision>0 encoding support
-- support reuse of motion vectors/MB types/field select values of the source video
-- more accurate deblock filter
-- padding support
-- many optimizations and bugfixes
-- FunCom ISS audio file demuxer and according ADPCM decoding
-
-
-version 0.4.8:
-
-- MPEG-2 video encoding (Michael)
-- Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
-- Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
-  and Mario Brito)
-- Xan DPCM audio decoder (Mario Brito)
-- Interplay MVE playback subsystem (Mike Melanson)
-- Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
-
-
-version 0.4.7:
-
-- RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
-  (originally from public domain player for Amiga at http://www.honeypot.net/audio)
-- current version now also compiles with older GCC (Fabrice)
-- 4X multimedia playback system including 4xm file demuxer (Mike
-  Melanson), and 4X video and audio codecs (Michael)
-- Creative YUV (CYUV) decoder (Mike Melanson)
-- FFV1 codec (our very simple lossless intra only codec, compresses much better
-  than HuffYUV) (Michael)
-- ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
-- tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
-  alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
-- ffplay has been replaced with a newer version which uses SDL (optionally)
-  for multiplatform support (Fabrice)
-- Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
-  by anonymous
-- AMR format has been added (Johannes Carlsson)
-- 3GP support has been added (Johannes Carlsson)
-- VP3 codec has been added (Mike Melanson)
-- more MPEG-1/2 fixes
-- better multiplatform support, MS Visual Studio fixes (various)
-- AltiVec optimizations (Magnus Damn and others)
-- SH4 processor support has been added (BERO)
-- new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
-- VOB streaming support (Brian Foley)
-- better MP3 autodetection (Andriy Rysin)
-- qpel encoding (Michael)
-- 4mv+b frames encoding finally fixed (Michael)
-- chroma ME (Michael)
-- 5 comparison functions for ME (Michael)
-- B-frame encoding speedup (Michael)
-- WMV2 codec (unfinished - Michael)
-- user specified diamond size for EPZS (Michael)
-- Playstation STR playback subsystem, still experimental (Mike and Michael)
-- ASV2 codec (Michael)
-- CLJR decoder (Alex)
-
-.. And lots more new enhancements and fixes.
-
-
-version 0.4.6:
-
-- completely new integer only MPEG audio layer 1/2/3 decoder rewritten
-  from scratch
-- Recoded DCT and motion vector search with gcc (no longer depends on nasm)
-- fix quantization bug in AC3 encoder
-- added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
-- added prototype ffplay program
-- added GOB header parsing on H.263/H.263+ decoder (Juanjo)
-- bug fix on MCBPC tables of H.263 (Juanjo)
-- bug fix on DC coefficients of H.263 (Juanjo)
-- added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
-- now we can decode H.263 streams found in QuickTime files (Juanjo)
-- now we can decode H.263 streams found in VIVO v1 files(Juanjo)
-- preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
-- added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
-- now H.263 picture size is returned on the first decoded frame (Juanjo)
-- added first regression tests
-- added MPEG-2 TS demuxer
-- new demux API for libav
-- more accurate and faster IDCT (Michael)
-- faster and entropy-controlled motion search (Michael)
-- two pass video encoding (Michael)
-- new video rate control (Michael)
-- added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
-- great performance improvement of video encoders and decoders (Michael)
-- new and faster bit readers and vlc parsers (Michael)
-- high quality encoding mode: tries all macroblock/VLC types (Michael)
-- added DV video decoder
-- preliminary RTP/RTSP support in ffserver and libavformat
-- H.263+ AIC decoding/encoding support (Juanjo)
-- VCD MPEG-PS mode (Juanjo)
-- PSNR stuff (Juanjo)
-- simple stats output (Juanjo)
-- 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
-
-
-version 0.4.5:
-
-- some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
-- many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
-- added configure system (actually a small shell script)
-- added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
-  Michael Hipp (temporary solution - waiting for integer only
-  decoder)
-- fixed VIDIOCSYNC interrupt
-- added Intel H.263 decoding support ('I263' AVI fourCC)
-- added Real Video 1.0 decoding (needs further testing)
-- simplified image formats again. Added PGM format (=grey
-  pgm). Renamed old PGM to PGMYUV.
-- fixed msmpeg4 slice issues (tell me if you still find problems)
-- fixed OpenDivX bugs with newer versions (added VOL header decoding)
-- added support for MPlayer interface
-- added macroblock skip optimization
-- added MJPEG decoder
-- added mmx/mmxext IDCT from libmpeg2
-- added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
-  <celer at shell.scrypt.net>)
-- added pixel format conversion layer (e.g. for MJPEG or PPM)
-- added deinterlacing option
-- MPEG-1/2 fixes
-- MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
-- ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
-- Windows porting of file converter
-- added MJPEG raw format (input/output)
-- added JPEG image format support (input/output)
-
-
-version 0.4.4:
-
-- fixed some std header definitions (Bjorn Lindgren
-  <bjorn.e.lindgren at telia.com>).
-- added MPEG demuxer (MPEG-1 and 2 compatible).
-- added ASF demuxer
-- added prototype RM demuxer
-- added AC3 decoding (done with libac3 by Aaron Holtzman)
-- added decoding codec parameter guessing (.e.g. for MPEG, because the
-  header does not include them)
-- fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
-  play them (only tested video)
-- fixed H.263 white bug
-- fixed phase rounding in img resample filter
-- add MMX code for polyphase img resample filter
-- added CPU autodetection
-- added generic title/author/copyright/comment string handling (ASF and RM
-  use them)
-- added SWF demux to extract MP3 track (not usable yet because no MP3
-  decoder)
-- added fractional frame rate support
-- codecs are no longer searched by read_header() (should fix ffserver
-  segfault)
-
-
-version 0.4.3:
-
-- BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
-- fixed raw yuv output
-- added motion rounding support in MPEG-4
-- fixed motion bug rounding in MSMPEG4
-- added B-frame handling in video core
-- added full MPEG-1 decoding support
-- added partial (frame only) MPEG-2 support
-- changed the FOURCC code for H.263 to "U263" to be able to see the
-  +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
-  this +codec ;) (JuanJo).
-- Halfpel motion estimation after MB type selection (JuanJo)
-- added pgm and .Y.U.V output format
-- suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
-  output.
-- added pgmpipe I/O format (original patch from Martin Aumueller
-  <lists at reserv.at>, but changed completely since we use a format
-  instead of a protocol)
-
-
-version 0.4.2:
-
-- added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
-  (for OpenDivX) is almost complete: 8x8 MVs and rounding are
-  missing. MSMPEG4 support is complete.
-- added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
-  can decode ffmpeg MPEGs :-)).
-- added libavcodec API documentation (see apiexample.c).
-- fixed image polyphase bug (the bottom of some images could be
-  greenish)
-- added support for non clipped motion vectors (decoding only)
-  and image sizes non-multiple of 16
-- added support for AC prediction (decoding only)
-- added file overwrite confirmation (can be disabled with -y)
-- added custom size picture to H.263 using H.263+ (Juanjo)
-
-
-version 0.4.1:
-
-- added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
-  of AVI and ASF to DIV3.
-- added -me option to set motion estimation method
-  (default=log). suppressed redundant -hq option.
-- added options -acodec and -vcodec to force a given codec (useful for
-  AVI for example)
-- fixed -an option
-- improved dct_quantize speed
-- factorized some motion estimation code
-
-
-version 0.4.0:
-
-- removing grab code from ffserver and moved it to ffmpeg. Added
-  multistream support to ffmpeg.
-- added timeshifting support for live feeds (option ?date=xxx in the
-  URL)
-- added high quality image resize code with polyphase filter (need
-  mmx/see optimization). Enable multiple image size support in ffserver.
-- added multi live feed support in ffserver
-- suppressed master feature from ffserver (it should be done with an
-  external program which opens the .ffm url and writes it to another
-  ffserver)
-- added preliminary support for video stream parsing (WAV and AVI half
-  done). Added proper support for audio/video file conversion in
-  ffmpeg.
-- added preliminary support for video file sending from ffserver
-- redesigning I/O subsystem: now using URL based input and output
-  (see avio.h)
-- added WAV format support
-- added "tty user interface" to ffmpeg to stop grabbing gracefully
-- added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
-  (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
-- added MMX DCT from mpeg2_movie 1.5 (Juanjo)
-- added new motion estimation algorithms, log and phods (Juanjo)
-- changed directories: libav for format handling, libavcodec for
-  codecs
-
-
-version 0.3.4:
-
-- added stereo in MPEG audio encoder
-
-
-version 0.3.3:
-
-- added 'high quality' mode which use motion vectors. It can be used in
-  real time at low resolution.
-- fixed rounding problems which caused quality problems at high
-  bitrates and large GOP size
-
-
-version 0.3.2: small fixes
-
-- ASF fixes
-- put_seek bug fix
-
-
-version 0.3.1: added avi/divx support
-
-- added AVI support
-- added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
-- added sound for flash format (not tested)
-
-
-version 0.3: initial public release
diff --git a/INSTALL.md b/INSTALL.md
deleted file mode 100644
index 5b98b45d88..0000000000
--- a/INSTALL.md
+++ /dev/null
@@ -1,28 +0,0 @@
-## Installing FFmpeg
-
-0. If you like to include source plugins, merge them before configure
-for example run tools/merge-all-source-plugins
-
-1. Type `./configure` to create the configuration. A list of configure
-options is printed by running `configure --help`.
-
-    `configure` can be launched from a directory different from the FFmpeg
-sources to build the objects out of tree. To do this, use an absolute
-path when launching `configure`, e.g. `/ffmpegdir/ffmpeg/configure`.
-
-2. Then type `make` to build FFmpeg. GNU Make 3.81 or later is required.
-
-3. Type `make install` to install all binaries and libraries you built.
-
-NOTICE
-------
-
- - Non system dependencies (e.g. libx264, libvpx) are disabled by default.
-
-NOTICE for Package Maintainers
-------------------------------
-
- - It is recommended to build FFmpeg twice, first with minimal external dependencies so
-   that 3rd party packages, which depend on FFmpegs libavutil/libavfilter/libavcodec/libavformat
-   can then be built. And last build FFmpeg with full dependencies (which may in turn depend on
-   some of these 3rd party packages). This avoids circular dependencies during build.
diff --git a/LICENSE.md b/LICENSE.md
deleted file mode 100644
index 371b0913ce..0000000000
--- a/LICENSE.md
+++ /dev/null
@@ -1,127 +0,0 @@
-# License
-
-Most files in FFmpeg are under the GNU Lesser General Public License version 2.1
-or later (LGPL v2.1+). Read the file `COPYING.LGPLv2.1` for details. Some other
-files have MIT/X11/BSD-style licenses. In combination the LGPL v2.1+ applies to
-FFmpeg.
-
-Some optional parts of FFmpeg are licensed under the GNU General Public License
-version 2 or later (GPL v2+). See the file `COPYING.GPLv2` for details. None of
-these parts are used by default, you have to explicitly pass `--enable-gpl` to
-configure to activate them. In this case, FFmpeg's license changes to GPL v2+.
-
-Specifically, the GPL parts of FFmpeg are:
-
-- optional x86 optimization in the files
-    - `libavcodec/x86/flac_dsp_gpl.asm`
-    - `libavcodec/x86/idct_mmx.c`
-    - `libavfilter/x86/vf_removegrain.asm`
-- the following building and testing tools
-    - `compat/solaris/make_sunver.pl`
-    - `doc/t2h.pm`
-    - `doc/texi2pod.pl`
-    - `libswresample/tests/swresample.c`
-    - `tests/checkasm/*`
-    - `tests/tiny_ssim.c`
-- the following filters in libavfilter:
-    - `signature_lookup.c`
-    - `vf_blackframe.c`
-    - `vf_boxblur.c`
-    - `vf_colormatrix.c`
-    - `vf_cover_rect.c`
-    - `vf_cropdetect.c`
-    - `vf_delogo.c`
-    - `vf_eq.c`
-    - `vf_find_rect.c`
-    - `vf_fspp.c`
-    - `vf_histeq.c`
-    - `vf_hqdn3d.c`
-    - `vf_kerndeint.c`
-    - `vf_lensfun.c` (GPL version 3 or later)
-    - `vf_mcdeint.c`
-    - `vf_mpdecimate.c`
-    - `vf_nnedi.c`
-    - `vf_owdenoise.c`
-    - `vf_perspective.c`
-    - `vf_phase.c`
-    - `vf_pp7.c`
-    - `vf_pullup.c`
-    - `vf_repeatfields.c`
-    - `vf_sab.c`
-    - `vf_signature.c`
-    - `vf_smartblur.c`
-    - `vf_spp.c`
-    - `vf_stereo3d.c`
-    - `vf_super2xsai.c`
-    - `vf_tinterlace.c`
-    - `vf_uspp.c`
-    - `vf_vaguedenoiser.c`
-    - `vsrc_mptestsrc.c`
-
-Should you, for whatever reason, prefer to use version 3 of the (L)GPL, then
-the configure parameter `--enable-version3` will activate this licensing option
-for you. Read the file `COPYING.LGPLv3` or, if you have enabled GPL parts,
-`COPYING.GPLv3` to learn the exact legal terms that apply in this case.
-
-There are a handful of files under other licensing terms, namely:
-
-* The files `libavcodec/jfdctfst.c`, `libavcodec/jfdctint_template.c` and
-  `libavcodec/jrevdct.c` are taken from libjpeg, see the top of the files for
-  licensing details. Specifically note that you must credit the IJG in the
-  documentation accompanying your program if you only distribute executables.
-  You must also indicate any changes including additions and deletions to
-  those three files in the documentation.
-* `tests/reference.pnm` is under the expat license.
-
-
-## External libraries
-
-FFmpeg can be combined with a number of external libraries, which sometimes
-affect the licensing of binaries resulting from the combination.
-
-### Compatible libraries
-
-The following libraries are under GPL version 2:
-- avisynth
-- frei0r
-- libcdio
-- libdavs2
-- librubberband
-- libvidstab
-- libx264
-- libx265
-- libxavs
-- libxavs2
-- libxvid
-
-When combining them with FFmpeg, FFmpeg needs to be licensed as GPL as well by
-passing `--enable-gpl` to configure.
-
-The following libraries are under LGPL version 3:
-- gmp
-- libaribb24
-- liblensfun
-
-When combining them with FFmpeg, use the configure option `--enable-version3` to
-upgrade FFmpeg to the LGPL v3.
-
-The VMAF, mbedTLS, RK MPI, OpenCORE and VisualOn libraries are under the Apache License
-2.0. That license is incompatible with the LGPL v2.1 and the GPL v2, but not with
-version 3 of those licenses. So to combine these libraries with FFmpeg, the
-license version needs to be upgraded by passing `--enable-version3` to configure.
-
-The smbclient library is under the GPL v3, to combine it with FFmpeg,
-the options `--enable-gpl` and `--enable-version3` have to be passed to
-configure to upgrade FFmpeg to the GPL v3.
-
-### Incompatible libraries
-
-There are certain libraries you can combine with FFmpeg whose licenses are not
-compatible with the GPL and/or the LGPL. If you wish to enable these
-libraries, even in circumstances that their license may be incompatible, pass
-`--enable-nonfree` to configure. This will cause the resulting binary to be
-unredistributable.
-
-The Fraunhofer FDK AAC and OpenSSL libraries are under licenses which are
-incompatible with the GPLv2 and v3. To the best of our knowledge, they are
-compatible with the LGPL.
diff --git a/Makefile b/Makefile
deleted file mode 100644
index 01c04d6bba..0000000000
--- a/Makefile
+++ /dev/null
@@ -1,222 +0,0 @@
-MAIN_MAKEFILE=1
-include ffbuild/config.mak
-
-vpath %.c    $(SRC_PATH)
-vpath %.cpp  $(SRC_PATH)
-vpath %.h    $(SRC_PATH)
-vpath %.inc  $(SRC_PATH)
-vpath %.m    $(SRC_PATH)
-vpath %.S    $(SRC_PATH)
-vpath %.asm  $(SRC_PATH)
-vpath %.rc   $(SRC_PATH)
-vpath %.v    $(SRC_PATH)
-vpath %.texi $(SRC_PATH)
-vpath %.glsl $(SRC_PATH)
-vpath %.spv  $(SRC_PATH)
-vpath %.cu   $(SRC_PATH)
-vpath %.ptx  $(SRC_PATH)
-vpath %.metal $(SRC_PATH)
-vpath %/fate_config.sh.template $(SRC_PATH)
-
-TESTTOOLS   = audiogen videogen rotozoom tiny_psnr tiny_ssim base64 audiomatch
-HOSTPROGS  := $(TESTTOOLS:%=tests/%) doc/print_options
-
-ALLFFLIBS =            \
-    avcodec            \
-    avdevice           \
-    avfilter           \
-    avformat           \
-    avutil             \
-    swscale            \
-    swresample         \
-
-# $(FFLIBS-yes) needs to be in linking order
-FFLIBS-$(CONFIG_AVDEVICE)   += avdevice
-FFLIBS-$(CONFIG_AVFILTER)   += avfilter
-FFLIBS-$(CONFIG_AVFORMAT)   += avformat
-FFLIBS-$(CONFIG_AVCODEC)    += avcodec
-FFLIBS-$(CONFIG_SWRESAMPLE) += swresample
-FFLIBS-$(CONFIG_SWSCALE)    += swscale
-
-FFLIBS := avutil
-
-DATA_FILES := $(wildcard $(SRC_PATH)/presets/*.ffpreset) $(SRC_PATH)/doc/ffprobe.xsd
-
-SKIPHEADERS = compat/w32pthreads.h
-
-# first so "all" becomes default target
-all: all-yes
-
-include $(SRC_PATH)/tools/Makefile
-include $(SRC_PATH)/ffbuild/common.mak
-
-FF_EXTRALIBS := $(FFEXTRALIBS)
-FF_DEP_LIBS  := $(DEP_LIBS)
-FF_STATIC_DEP_LIBS := $(STATIC_DEP_LIBS)
-
-$(TOOLS): %$(EXESUF): %.o
-	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(filter-out $(FF_DEP_LIBS), $^) $(EXTRALIBS-$(*F)) $(EXTRALIBS) $(ELIBS))
-
-target_dec_%_fuzzer$(EXESUF): target_dec_%_fuzzer.o $(FF_DEP_LIBS)
-	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
-
-target_enc_%_fuzzer$(EXESUF): target_enc_%_fuzzer.o $(FF_DEP_LIBS)
-	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
-
-tools/target_bsf_%_fuzzer$(EXESUF): tools/target_bsf_%_fuzzer.o $(FF_DEP_LIBS)
-	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
-
-target_dem_%_fuzzer$(EXESUF): target_dem_%_fuzzer.o $(FF_DEP_LIBS)
-	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
-
-tools/target_dem_fuzzer$(EXESUF): tools/target_dem_fuzzer.o $(FF_DEP_LIBS)
-	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
-
-tools/target_io_dem_fuzzer$(EXESUF): tools/target_io_dem_fuzzer.o $(FF_DEP_LIBS)
-	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
-
-tools/target_sws_fuzzer$(EXESUF): tools/target_sws_fuzzer.o $(FF_DEP_LIBS)
-	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
-
-tools/target_swr_fuzzer$(EXESUF): tools/target_swr_fuzzer.o $(FF_DEP_LIBS)
-	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS) $(FF_EXTRALIBS) $(LIBFUZZER_PATH))
-
-tools/enum_options$(EXESUF): ELIBS = $(FF_EXTRALIBS)
-tools/enum_options$(EXESUF): $(FF_DEP_LIBS)
-tools/enc_recon_frame_test$(EXESUF): $(FF_DEP_LIBS)
-tools/enc_recon_frame_test$(EXESUF): ELIBS = $(FF_EXTRALIBS)
-tools/scale_slice_test$(EXESUF): $(FF_DEP_LIBS)
-tools/scale_slice_test$(EXESUF): ELIBS = $(FF_EXTRALIBS)
-tools/sofa2wavs$(EXESUF): ELIBS = $(FF_EXTRALIBS)
-tools/uncoded_frame$(EXESUF): $(FF_DEP_LIBS)
-tools/uncoded_frame$(EXESUF): ELIBS = $(FF_EXTRALIBS)
-tools/target_dec_%_fuzzer$(EXESUF): $(FF_DEP_LIBS)
-tools/target_dem_%_fuzzer$(EXESUF): $(FF_DEP_LIBS)
-
-CONFIGURABLE_COMPONENTS =                                           \
-    $(wildcard $(FFLIBS:%=$(SRC_PATH)/lib%/all*.c))                 \
-    $(SRC_PATH)/libavcodec/bitstream_filters.c                      \
-    $(SRC_PATH)/libavcodec/hwaccels.h                               \
-    $(SRC_PATH)/libavcodec/parsers.c                                \
-    $(SRC_PATH)/libavformat/protocols.c                             \
-
-config_components.h: ffbuild/.config
-ffbuild/.config: $(CONFIGURABLE_COMPONENTS)
-	@-tput bold 2>/dev/null
-	@-printf '\nWARNING: $(?) newer than config_components.h, rerun configure\n\n'
-	@-tput sgr0 2>/dev/null
-
-SUBDIR_VARS := CLEANFILES FFLIBS HOSTPROGS TESTPROGS TOOLS               \
-               HEADERS ARCH_HEADERS BUILT_HEADERS SKIPHEADERS            \
-               ARMV5TE-OBJS ARMV6-OBJS ARMV8-OBJS VFP-OBJS NEON-OBJS     \
-               ALTIVEC-OBJS VSX-OBJS X86ASM-OBJS                         \
-               MIPSFPU-OBJS MIPSDSPR2-OBJS MIPSDSP-OBJS MSA-OBJS         \
-               MMI-OBJS LSX-OBJS LASX-OBJS RV-OBJS RVV-OBJS RVVB-OBJS    \
-               OBJS SHLIBOBJS STLIBOBJS HOSTOBJS TESTOBJS SIMD128-OBJS   \
-               SVE-OBJS SVE2-OBJS SME-OBJS
-
-define RESET
-$(1) :=
-$(1)-yes :=
-endef
-
-define DOSUBDIR
-$(foreach V,$(SUBDIR_VARS),$(eval $(call RESET,$(V))))
-SUBDIR := $(1)/
-include $(SRC_PATH)/$(1)/Makefile
--include $(SRC_PATH)/$(1)/$(ARCH)/Makefile
--include $(SRC_PATH)/$(1)/$(INTRINSICS)/Makefile
-include $(SRC_PATH)/ffbuild/library.mak
-endef
-
-$(foreach D,$(FFLIBS),$(eval $(call DOSUBDIR,lib$(D))))
-
-include $(SRC_PATH)/fftools/Makefile
-include $(SRC_PATH)/doc/Makefile
-include $(SRC_PATH)/doc/examples/Makefile
-
-$(ALLFFLIBS:%=lib%/version.o): libavutil/ffversion.h
-
-$(PROGS): %$(PROGSSUF)$(EXESUF): %$(PROGSSUF)_g$(EXESUF)
-ifeq ($(STRIPTYPE),direct)
-	$(STRIP) -o $@ $<
-else
-	$(RM) $@
-	$(CP) $< $@
-	$(STRIP) $@
-endif
-
-%$(PROGSSUF)_g$(EXESUF): $(FF_DEP_LIBS)
-	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(OBJS-$*) $(FF_EXTRALIBS))
-
-VERSION_SH  = $(SRC_PATH)/ffbuild/version.sh
-ifeq ($(VERSION_TRACKING),yes)
-GIT_LOG     = $(SRC_PATH)/.git/logs/HEAD
-endif
-
-.version: $(wildcard $(GIT_LOG)) $(VERSION_SH) ffbuild/config.mak
-.version: M=@
-
-ifneq ($(VERSION_TRACKING),yes)
-libavutil/ffversion.h .version: REVISION=unknown
-endif
-libavutil/ffversion.h .version:
-	$(M)revision=$(REVISION) $(VERSION_SH) $(SRC_PATH) libavutil/ffversion.h $(EXTRA_VERSION)
-	$(Q)touch .version
-
-# force version.sh to run whenever version might have changed
--include .version
-
-install: install-libs install-headers
-
-install-libs: install-libs-yes
-
-install-data: $(DATA_FILES)
-	$(Q)mkdir -p "$(DATADIR)"
-	$(INSTALL) -m 644 $(DATA_FILES) "$(DATADIR)"
-
-uninstall: uninstall-data uninstall-headers uninstall-libs uninstall-pkgconfig
-
-uninstall-data:
-	$(RM) -r "$(DATADIR)"
-
-clean::
-	$(RM) $(CLEANSUFFIXES)
-	$(RM) $(addprefix compat/,$(CLEANSUFFIXES)) $(addprefix compat/*/,$(CLEANSUFFIXES)) $(addprefix compat/*/*/,$(CLEANSUFFIXES))
-	$(RM) -r coverage-html
-	$(RM) -rf coverage.info coverage.info.in lcov
-
-distclean:: clean
-	$(RM) .version config.asm config.h config_components.* mapfile  \
-		ffbuild/.config ffbuild/config.* libavutil/avconfig.h \
-		version.h libavutil/ffversion.h libavcodec/codec_names.h \
-		libavcodec/bsf_list.c libavformat/protocol_list.c \
-		libavcodec/codec_list.c libavcodec/parser_list.c \
-		libavfilter/filter_list.c libavdevice/indev_list.c libavdevice/outdev_list.c \
-		libavformat/muxer_list.c libavformat/demuxer_list.c
-ifeq ($(SRC_LINK),src)
-	$(RM) src
-endif
-	$(RM) -rf doc/examples/pc-uninstalled
-
-config:
-	$(SRC_PATH)/configure $(value FFMPEG_CONFIGURATION)
-
-build: all alltools examples testprogs
-check: all alltools examples testprogs fate
-
-include $(SRC_PATH)/tests/Makefile
-
-$(sort $(OUTDIRS)):
-	$(Q)mkdir -p $@
-
-# Dummy rule to stop make trying to rebuild removed or renamed headers
-%.h:
-	@:
-
-# Disable suffix rules.  Most of the builtin rules are suffix rules,
-# so this saves some time on slow systems.
-.SUFFIXES:
-
-.PHONY: all all-yes alltools build check config testprogs
-.PHONY: *clean install* uninstall*
diff --git a/README.md b/README.md
deleted file mode 100644
index f8c23f2870..0000000000
--- a/README.md
+++ /dev/null
@@ -1,46 +0,0 @@
-FFmpeg README
-=============
-
-FFmpeg is a collection of libraries and tools to process multimedia content
-such as audio, video, subtitles and related metadata.
-
-## Libraries
-
-* `libavcodec` provides implementation of a wider range of codecs.
-* `libavformat` implements streaming protocols, container formats and basic I/O access.
-* `libavutil` includes hashers, decompressors and miscellaneous utility functions.
-* `libavfilter` provides means to alter decoded audio and video through a directed graph of connected filters.
-* `libavdevice` provides an abstraction to access capture and playback devices.
-* `libswresample` implements audio mixing and resampling routines.
-* `libswscale` implements color conversion and scaling routines.
-
-## Tools
-
-* [ffmpeg](https://ffmpeg.org/ffmpeg.html) is a command line toolbox to
-  manipulate, convert and stream multimedia content.
-* [ffplay](https://ffmpeg.org/ffplay.html) is a minimalistic multimedia player.
-* [ffprobe](https://ffmpeg.org/ffprobe.html) is a simple analysis tool to inspect
-  multimedia content.
-* Additional small tools such as `aviocat`, `ismindex` and `qt-faststart`.
-
-## Documentation
-
-The offline documentation is available in the **doc/** directory.
-
-The online documentation is available in the main [website](https://ffmpeg.org)
-and in the [wiki](https://trac.ffmpeg.org).
-
-### Examples
-
-Coding examples are available in the **doc/examples** directory.
-
-## License
-
-FFmpeg codebase is mainly LGPL-licensed with optional components licensed under
-GPL. Please refer to the LICENSE file for detailed information.
-
-## Contributing
-
-Patches should be submitted to the ffmpeg-devel mailing list using
-`git format-patch` or `git send-email`. Github pull requests should be
-avoided because they are not part of our review process and will be ignored.
diff --git a/RELEASE b/RELEASE
deleted file mode 100644
index f5facffc32..0000000000
--- a/RELEASE
+++ /dev/null
@@ -1 +0,0 @@
-8.0.git
diff --git a/configure b/configure
deleted file mode 100755
index e5c516fd25..0000000000
--- a/configure
+++ /dev/null
@@ -1,8810 +0,0 @@
-#!/bin/sh
-#
-# FFmpeg configure script
-#
-# Copyright (c) 2000-2002 Fabrice Bellard
-# Copyright (c) 2005-2008 Diego Biurrun
-# Copyright (c) 2005-2008 Mans Rullgard
-#
-
-# Prevent locale nonsense from breaking basic text processing.
-LC_ALL=C
-export LC_ALL
-
-# make sure we are running under a compatible shell
-# try to make this part work with most shells
-
-try_exec(){
-    echo "Trying shell $1"
-    type "$1" > /dev/null 2>&1 && exec "$@"
-}
-
-unset foo
-(: ${foo%%bar}) 2> /dev/null
-E1="$?"
-
-(: ${foo?}) 2> /dev/null
-E2="$?"
-
-if test "$E1" != 0 || test "$E2" = 0; then
-    echo "Broken shell detected.  Trying alternatives."
-    export FF_CONF_EXEC
-    if test "0$FF_CONF_EXEC" -lt 1; then
-        FF_CONF_EXEC=1
-        try_exec bash "$0" "$@"
-    fi
-    if test "0$FF_CONF_EXEC" -lt 2; then
-        FF_CONF_EXEC=2
-        try_exec ksh "$0" "$@"
-    fi
-    if test "0$FF_CONF_EXEC" -lt 3; then
-        FF_CONF_EXEC=3
-        try_exec /usr/xpg4/bin/sh "$0" "$@"
-    fi
-    echo "No compatible shell script interpreter found."
-    echo "This configure script requires a POSIX-compatible shell"
-    echo "such as bash or ksh."
-    echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
-    echo "Instead, install a working POSIX-compatible shell."
-    echo "Disabling this configure test will create a broken FFmpeg."
-    if test "$BASH_VERSION" = '2.04.0(1)-release'; then
-        echo "This bash version ($BASH_VERSION) is broken on your platform."
-        echo "Upgrade to a later version if available."
-    fi
-    exit 1
-fi
-
-test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
-
-show_help(){
-    cat <<EOF
-Usage: configure [options]
-Options: [defaults in brackets after descriptions]
-
-Help options:
-  --help                   print this message
-  --quiet                  Suppress showing informative output
-  --list-decoders          show all available decoders
-  --list-encoders          show all available encoders
-  --list-hwaccels          show all available hardware accelerators
-  --list-demuxers          show all available demuxers
-  --list-muxers            show all available muxers
-  --list-parsers           show all available parsers
-  --list-protocols         show all available protocols
-  --list-bsfs              show all available bitstream filters
-  --list-indevs            show all available input devices
-  --list-outdevs           show all available output devices
-  --list-filters           show all available filters
-
-Standard options:
-  --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
-  --disable-logging        do not log configure debug information
-  --fatal-warnings         fail if any configure warning is generated
-  --prefix=PREFIX          install in PREFIX [$prefix_default]
-  --bindir=DIR             install binaries in DIR [PREFIX/bin]
-  --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
-  --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
-  --libdir=DIR             install libs in DIR [PREFIX/lib]
-  --shlibdir=DIR           install shared libs in DIR [LIBDIR]
-  --incdir=DIR             install includes in DIR [PREFIX/include]
-  --mandir=DIR             install man page in DIR [PREFIX/share/man]
-  --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
-  --enable-rpath           use rpath to allow installing libraries in paths
-                           not part of the dynamic linker search path
-                           use rpath when linking programs (USE WITH CARE)
-  --install-name-dir=DIR   Darwin directory name for installed targets
-
-Licensing options:
-  --enable-gpl             allow use of GPL code, the resulting libs
-                           and binaries will be under GPL [no]
-  --enable-version3        upgrade (L)GPL to version 3 [no]
-  --enable-nonfree         allow use of nonfree code, the resulting libs
-                           and binaries will be unredistributable [no]
-
-Configuration options:
-  --disable-static         do not build static libraries [no]
-  --enable-shared          build shared libraries [no]
-  --enable-small           optimize for size instead of speed
-  --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
-  --enable-gray            enable full grayscale support (slower color)
-  --disable-swscale-alpha  disable alpha channel support in swscale
-  --disable-unstable       disable building optional unstable / experimental code
-  --disable-all            disable building components, libraries and programs
-  --disable-autodetect     disable automatically detected external libraries [no]
-
-Program options:
-  --disable-programs       do not build command line programs
-  --disable-ffmpeg         disable ffmpeg build
-  --disable-ffplay         disable ffplay build
-  --disable-ffprobe        disable ffprobe build
-
-Documentation options:
-  --disable-doc            do not build documentation
-  --disable-htmlpages      do not build HTML documentation pages
-  --disable-manpages       do not build man documentation pages
-  --disable-podpages       do not build POD documentation pages
-  --disable-txtpages       do not build text documentation pages
-
-Component options:
-  --disable-avdevice       disable libavdevice build
-  --disable-avcodec        disable libavcodec build
-  --disable-avformat       disable libavformat build
-  --disable-swresample     disable libswresample build
-  --disable-swscale        disable libswscale build
-  --disable-avfilter       disable libavfilter build
-  --disable-pthreads       disable pthreads [autodetect]
-  --disable-w32threads     disable Win32 threads [autodetect]
-  --disable-os2threads     disable OS/2 threads [autodetect]
-  --disable-network        disable network support [no]
-  --disable-dwt            disable DWT code
-  --disable-error-resilience disable error resilience code
-  --disable-lsp            disable LSP code
-  --disable-faan           disable floating point AAN (I)DCT code
-  --disable-iamf           disable support for Immersive Audio Model
-  --disable-pixelutils     disable pixel utils in libavutil
-
-Individual component options:
-  --disable-everything     disable all components listed below
-  --disable-encoder=NAME   disable encoder NAME
-  --enable-encoder=NAME    enable encoder NAME
-  --disable-encoders       disable all encoders
-  --disable-decoder=NAME   disable decoder NAME
-  --enable-decoder=NAME    enable decoder NAME
-  --disable-decoders       disable all decoders
-  --disable-hwaccel=NAME   disable hwaccel NAME
-  --enable-hwaccel=NAME    enable hwaccel NAME
-  --disable-hwaccels       disable all hwaccels
-  --disable-muxer=NAME     disable muxer NAME
-  --enable-muxer=NAME      enable muxer NAME
-  --disable-muxers         disable all muxers
-  --disable-demuxer=NAME   disable demuxer NAME
-  --enable-demuxer=NAME    enable demuxer NAME
-  --disable-demuxers       disable all demuxers
-  --enable-parser=NAME     enable parser NAME
-  --disable-parser=NAME    disable parser NAME
-  --disable-parsers        disable all parsers
-  --enable-bsf=NAME        enable bitstream filter NAME
-  --disable-bsf=NAME       disable bitstream filter NAME
-  --disable-bsfs           disable all bitstream filters
-  --enable-protocol=NAME   enable protocol NAME
-  --disable-protocol=NAME  disable protocol NAME
-  --disable-protocols      disable all protocols
-  --enable-indev=NAME      enable input device NAME
-  --disable-indev=NAME     disable input device NAME
-  --disable-indevs         disable input devices
-  --enable-outdev=NAME     enable output device NAME
-  --disable-outdev=NAME    disable output device NAME
-  --disable-outdevs        disable output devices
-  --disable-devices        disable all devices
-  --enable-filter=NAME     enable filter NAME
-  --disable-filter=NAME    disable filter NAME
-  --disable-filters        disable all filters
-
-External library support:
-
-  Using any of the following switches will allow FFmpeg to link to the
-  corresponding external library. All the components depending on that library
-  will become enabled, if all their other dependencies are met and they are not
-  explicitly disabled. E.g. --enable-libopus will enable linking to
-  libopus and allow the libopus encoder to be built, unless it is
-  specifically disabled with --disable-encoder=libopus.
-
-  Note that only the system libraries are auto-detected. All the other external
-  libraries must be explicitly enabled.
-
-  Also note that the following help text describes the purpose of the libraries
-  themselves, not all their features will necessarily be usable by FFmpeg.
-
-  --disable-alsa           disable ALSA support [autodetect]
-  --disable-appkit         disable Apple AppKit framework [autodetect]
-  --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
-  --enable-avisynth        enable reading of AviSynth script files [no]
-  --disable-bzlib          disable bzlib [autodetect]
-  --enable-cairo           enable cairo [no]
-  --disable-coreimage      disable Apple CoreImage framework [autodetect]
-  --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
-  --enable-frei0r          enable frei0r video filtering [no]
-  --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
-                           if openssl, librtmp or gmp is not used [no]
-  --enable-gmp             enable gmp, needed for rtmp(t)e support
-                           if openssl or librtmp is not used [no]
-  --enable-gnutls          enable gnutls, needed for https support
-                           if openssl, libtls or mbedtls is not used [no]
-  --disable-iconv          disable iconv [autodetect]
-  --enable-jni             enable JNI support [no]
-  --enable-ladspa          enable LADSPA audio filtering [no]
-  --enable-lcms2           enable ICC profile support via LittleCMS 2 [no]
-  --enable-libaom          enable AV1 video encoding/decoding via libaom [no]
-  --enable-libaribb24      enable ARIB text and caption decoding via libaribb24 [no]
-  --enable-libaribcaption  enable ARIB text and caption decoding via libaribcaption [no]
-  --enable-libass          enable libass subtitles rendering,
-                           needed for subtitles and ass filter [no]
-  --enable-libbluray       enable BluRay reading using libbluray [no]
-  --enable-libbs2b         enable bs2b DSP library [no]
-  --enable-libcaca         enable textual display using libcaca [no]
-  --enable-libcelt         enable CELT decoding via libcelt [no]
-  --enable-libcdio         enable audio CD grabbing with libcdio [no]
-  --enable-libcodec2       enable codec2 en/decoding using libcodec2 [no]
-  --enable-libdav1d        enable AV1 decoding via libdav1d [no]
-  --enable-libdavs2        enable AVS2 decoding via libdavs2 [no]
-  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
-                           and libraw1394 [no]
-  --enable-libdvdnav       enable libdvdnav, needed for DVD demuxing [no]
-  --enable-libdvdread      enable libdvdread, needed for DVD demuxing [no]
-  --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
-  --enable-libflite        enable flite (voice synthesis) support via libflite [no]
-  --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
-  --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
-  --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
-  --enable-libharfbuzz     enable libharfbuzz, needed for drawtext filter [no]
-  --enable-libglslang      enable runtime GLSL->SPIRV compilation via libglslang [no]
-  --enable-libgme          enable Game Music Emu via libgme [no]
-  --enable-libgsm          enable GSM de/encoding via libgsm [no]
-  --enable-libiec61883     enable iec61883 via libiec61883 [no]
-  --enable-libilbc         enable iLBC de/encoding via libilbc [no]
-  --enable-libjack         enable JACK audio sound server [no]
-  --enable-libjxl          enable JPEG XL de/encoding via libjxl [no]
-  --enable-libklvanc       enable Kernel Labs VANC processing [no]
-  --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
-  --enable-liblc3          enable LC3 de/encoding via liblc3 [no]
-  --enable-liblcevc-dec    enable LCEVC decoding via liblcevc-dec [no]
-  --enable-liblensfun      enable lensfun lens correction [no]
-  --enable-libmodplug      enable ModPlug via libmodplug [no]
-  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
-  --enable-libmpeghdec     enable MPEG-H 3DA decoding via libmpeghdec [no]
-  --enable-liboapv         enable APV encoding via liboapv [no]
-  --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
-  --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
-  --enable-libopencv       enable video filtering via libopencv [no]
-  --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
-  --enable-libopenjpeg     enable JPEG 2000 encoding via OpenJPEG [no]
-  --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
-  --enable-libopencolorio  enable color management via OpenColorIO [no]
-  --enable-libopenvino     enable OpenVINO as a DNN module backend
-                           for DNN based filters like dnn_processing [no]
-  --enable-libopus         enable Opus de/encoding via libopus [no]
-  --enable-libplacebo      enable libplacebo library [no]
-  --enable-libpulse        enable Pulseaudio input via libpulse [no]
-  --enable-libqrencode     enable QR encode generation via libqrencode [no]
-  --enable-libquirc        enable QR decoding via libquirc [no]
-  --enable-librabbitmq     enable RabbitMQ library [no]
-  --enable-librav1e        enable AV1 encoding via rav1e [no]
-  --enable-librist         enable RIST via librist [no]
-  --enable-librsvg         enable SVG rasterization via librsvg [no]
-  --enable-librubberband   enable rubberband needed for rubberband filter [no]
-  --enable-librtmp         enable RTMP[E] support via librtmp [no]
-  --enable-libshaderc      enable runtime GLSL->SPIRV compilation via libshaderc [no]
-  --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
-  --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
-  --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
-  --enable-libsoxr         enable Include libsoxr resampling [no]
-  --enable-libspeex        enable Speex de/encoding via libspeex [no]
-  --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
-  --enable-libssh          enable SFTP protocol via libssh [no]
-  --enable-libsvtav1       enable AV1 encoding via SVT [no]
-  --enable-libsvtjpegxs    enable JPEGXS encoding/decoding via SVT [no]
-  --enable-libtensorflow   enable TensorFlow as a DNN module backend
-                           for DNN based filters like sr [no]
-  --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
-  --enable-libtheora       enable Theora encoding via libtheora [no]
-  --enable-libtls          enable LibreSSL (via libtls), needed for https support
-                           if openssl, gnutls or mbedtls is not used [no]
-  --enable-libtorch        enable Torch as one DNN backend [no]
-  --enable-libtwolame      enable MP2 encoding via libtwolame [no]
-  --enable-libuavs3d       enable AVS3 decoding via libuavs3d [no]
-  --enable-libv4l2         enable libv4l2/v4l-utils [no]
-  --enable-libvidstab      enable video stabilization using vid.stab [no]
-  --enable-libvmaf         enable vmaf filter via libvmaf [no]
-  --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
-  --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
-                           native implementation exists [no]
-  --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
-  --enable-libvvenc        enable H.266/VVC encoding via vvenc [no]
-  --enable-libwebp         enable WebP encoding via libwebp [no]
-  --enable-libx264         enable H.264 encoding via x264 [no]
-  --enable-libx265         enable HEVC encoding via x265 [no]
-  --enable-libxeve         enable EVC encoding via libxeve [no]
-  --enable-libxeveb        enable EVC encoding via libxeve (Base profile) [no]
-  --enable-libxevd         enable EVC decoding via libxevd [no]
-  --enable-libxevdb        enable EVC decoding via libxevd (Base profile) [no]
-  --enable-libxavs         enable AVS encoding via xavs [no]
-  --enable-libxavs2        enable AVS2 encoding via xavs2 [no]
-  --enable-libxcb          enable X11 grabbing using XCB [autodetect]
-  --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
-  --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
-  --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
-  --enable-libxvid         enable Xvid encoding via xvidcore,
-                           native MPEG-4/Xvid encoder exists [no]
-  --enable-libxml2         enable XML parsing using the C library libxml2, needed
-                           for dash and imf demuxing support [no]
-  --enable-libzimg         enable z.lib, needed for zscale filter [no]
-  --enable-libzmq          enable message passing via libzmq [no]
-  --enable-libzvbi         enable teletext support via libzvbi [no]
-  --enable-lv2             enable LV2 audio filtering [no]
-  --disable-lzma           disable lzma [autodetect]
-  --enable-decklink        enable Blackmagic DeckLink I/O support [no]
-  --enable-mbedtls         enable mbedTLS, needed for https support
-                           if openssl, gnutls or libtls is not used [no]
-  --enable-mediacodec      enable Android MediaCodec support [no]
-  --enable-mediafoundation enable encoding via MediaFoundation [auto]
-  --disable-metal          disable Apple Metal framework [autodetect]
-  --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
-  --enable-ohcodec         enable OpenHarmony Codec support [no]
-  --enable-openal          enable OpenAL 1.1 capture support [no]
-  --enable-opencl          enable OpenCL processing [no]
-  --enable-opengl          enable OpenGL rendering [no]
-  --enable-openssl         enable openssl, needed for https support
-                           if gnutls, libtls or mbedtls is not used [no]
-  --enable-pocketsphinx    enable PocketSphinx, needed for asr filter [no]
-  --disable-sndio          disable sndio support [autodetect]
-  --disable-schannel       disable SChannel SSP, needed for TLS support on
-                           Windows if openssl and gnutls are not used [autodetect]
-  --disable-sdl2           disable sdl2 [autodetect]
-  --disable-securetransport disable Secure Transport, needed for TLS support
-                           on OSX if openssl and gnutls are not used [autodetect]
-  --enable-vapoursynth     enable VapourSynth demuxer [no]
-  --enable-whisper         enable whisper filter [no]
-  --disable-xlib           disable xlib [autodetect]
-  --disable-zlib           disable zlib [autodetect]
-
-  The following libraries provide various hardware acceleration features:
-  --disable-amf            disable AMF video encoding code [autodetect]
-  --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
-  --enable-cuda-nvcc       enable Nvidia CUDA compiler [no]
-  --disable-cuda-llvm      disable CUDA compilation using clang [autodetect]
-  --disable-cuvid          disable Nvidia CUVID support [autodetect]
-  --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
-  --disable-d3d12va        disable Microsoft Direct3D 12 video acceleration code [autodetect]
-  --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
-  --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
-  --disable-libdrm         disable DRM code (Linux) [autodetect]
-  --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
-  --enable-libvpl          enable Intel oneVPL code via libvpl if libmfx is not used [no]
-  --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
-  --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
-  --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
-  --disable-nvenc          disable Nvidia video encoding code [autodetect]
-  --enable-omx             enable OpenMAX IL code [no]
-  --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
-  --enable-rkmpp           enable Rockchip Media Process Platform code [no]
-  --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
-  --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
-  --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
-  --disable-videotoolbox   disable VideoToolbox code [autodetect]
-  --disable-vulkan         disable Vulkan code [autodetect]
-  --enable-vulkan-static   statically link to libvulkan [no]
-
-Toolchain options:
-  --arch=ARCH              select architecture [$arch]
-  --cpu=CPU                select the minimum required CPU (affects
-                           instruction selection, may crash on older CPUs)
-  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
-  --progs-suffix=SUFFIX    program name suffix []
-  --enable-cross-compile   assume a cross-compiler is used
-  --sysroot=PATH           root of cross-build tree
-  --sysinclude=PATH        location of cross-build system headers
-  --target-os=OS           compiler targets OS [$target_os]
-  --target-exec=CMD        command to run executables on target
-  --target-path=DIR        path to view of build directory on target
-  --target-samples=DIR     path to samples directory on target
-  --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
-  --toolchain=NAME         set tool defaults according to NAME
-                           (<tool>[-sanitizer[-...]], e.g. clang-asan-ubsan
-                           tools: gcc, clang, msvc, icl, gcov, llvm-cov,
-                                  valgrind-memcheck, valgrind-massif, hardened
-                           sanitizers: asan, fuzz, lsan, msan, tsan, ubsan)
-  --nm=NM                  use nm tool NM [$nm_default]
-  --ar=AR                  use archive tool AR [$ar_default]
-  --as=AS                  use assembler AS [$as_default]
-  --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
-  --strip=STRIP            use strip tool STRIP [$strip_default]
-  --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
-  --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
-  --cc=CC                  use C compiler CC [$cc_default]
-  --stdc=STDC              use C standard STDC [$stdc_default]
-  --cxx=CXX                use C compiler CXX [$cxx_default]
-  --stdcxx=STDCXX          use C standard STDCXX [$stdcxx_default]
-  --objcc=OCC              use ObjC compiler OCC [$cc_default]
-  --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
-  --glslc=GLSLC            use GLSL compiler GLSLC [$glslc_default]
-  --nvcc=NVCC              use Nvidia CUDA compiler NVCC or clang [$nvcc_default]
-  --ld=LD                  use linker LD [$ld_default]
-  --metalcc=METALCC        use metal compiler METALCC [$metalcc_default]
-  --metallib=METALLIB      use metal linker METALLIB [$metallib_default]
-  --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
-  --pkg-config-flags=FLAGS pass additional flags to pkgconf []
-  --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
-  --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
-  --host-cc=HOSTCC         use host C compiler HOSTCC
-  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
-  --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
-  --host-ld=HOSTLD         use host linker HOSTLD
-  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
-  --host-extralibs=HLIBS   use libs HLIBS when linking for host
-  --host-os=OS             compiler host OS [$target_os]
-  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
-  --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
-  --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$OBJCFLAGS]
-  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
-  --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
-  --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
-  --extra-libs=ELIBS       add ELIBS [$ELIBS]
-  --extra-version=STRING   version string suffix []
-  --optflags=OPTFLAGS      override optimization-related compiler flags
-  --glslcflags=GLSLCFLAGS  extra glslc flags [$glslcflags_default]
-  --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
-  --build-suffix=SUFFIX    library name suffix []
-  --enable-pic             build position-independent code
-  --enable-thumb           compile for Thumb instruction set
-  --enable-lto[=arg]       use link-time optimization
-  --env="ENV=override"     override the environment variables
-  --disable-response-files Don't pass the list of objects to linker in a file [autodetect]
-
-Advanced options (experts only):
-  --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
-  --custom-allocator=NAME  use a supported custom allocator
-  --disable-symver         disable symbol versioning
-  --enable-hardcoded-tables use hardcoded tables instead of runtime generation
-  --disable-safe-bitstream-reader
-                           disable buffer boundary checking in bitreaders
-                           (This disables some security checks and can cause undefined behavior,
-                            crashes and arbitrary code execution, it may be faster, but
-                            should only be used with trusted input)
-  --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
-
-Optimization options (experts only):
-  --disable-asm            disable all assembly optimizations
-  --disable-altivec        disable AltiVec optimizations
-  --disable-vsx            disable VSX optimizations
-  --disable-power8         disable POWER8 optimizations
-  --disable-mmx            disable MMX optimizations
-  --disable-mmxext         disable MMXEXT optimizations
-  --disable-sse            disable SSE optimizations
-  --disable-sse2           disable SSE2 optimizations
-  --disable-sse3           disable SSE3 optimizations
-  --disable-ssse3          disable SSSE3 optimizations
-  --disable-sse4           disable SSE4 optimizations
-  --disable-sse42          disable SSE4.2 optimizations
-  --disable-avx            disable AVX optimizations
-  --disable-xop            disable XOP optimizations
-  --disable-fma3           disable FMA3 optimizations
-  --disable-fma4           disable FMA4 optimizations
-  --disable-avx2           disable AVX2 optimizations
-  --disable-avx512         disable AVX-512 optimizations
-  --disable-avx512icl      disable AVX-512ICL optimizations
-  --disable-aesni          disable AESNI optimizations
-  --disable-clmul          disable CLMUL optimizations
-  --disable-armv5te        disable armv5te optimizations
-  --disable-armv6          disable armv6 optimizations
-  --disable-armv6t2        disable armv6t2 optimizations
-  --disable-vfp            disable VFP optimizations
-  --disable-neon           disable NEON optimizations
-  --disable-arm-crc        disable ARM/AArch64 CRC optimizations
-  --disable-dotprod        disable DOTPROD optimizations
-  --disable-i8mm           disable I8MM optimizations
-  --disable-sve            disable SVE optimizations
-  --disable-sve2           disable SVE2 optimizations
-  --disable-sme            disable SME optimizations
-  --disable-inline-asm     disable use of inline assembly
-  --disable-x86asm         disable use of standalone x86 assembly
-  --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
-  --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
-  --disable-msa            disable MSA optimizations
-  --disable-mipsfpu        disable floating point MIPS optimizations
-  --disable-mmi            disable Loongson MMI optimizations
-  --disable-lsx            disable Loongson LSX optimizations
-  --disable-lasx           disable Loongson LASX optimizations
-  --disable-rvv            disable RISC-V Vector optimizations
-  --disable-fast-unaligned consider unaligned accesses slow
-  --disable-simd128        disable WebAssembly simd128 optimizations
-
-Developer options (useful when working on FFmpeg itself):
-  --disable-debug          disable debugging symbols
-  --enable-debug=LEVEL     set the debug level [$debuglevel]
-  --disable-optimizations  disable compiler optimizations
-  --enable-extra-warnings  enable more compiler warnings
-  --disable-stripping      disable stripping of executables and shared libraries
-  --assert-level=level     0(default), 1 or 2, amount of assertion testing,
-                           2 causes a slowdown at runtime.
-  --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
-  --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
-                           leaks and errors, using the specified valgrind binary.
-                           Cannot be combined with --target-exec
-  --enable-ftrapv          Trap arithmetic overflows
-  --samples=PATH           location of test samples for FATE, if not set use
-                           \$FATE_SAMPLES at make invocation time.
-  --enable-neon-clobber-test check NEON registers for clobbering (should be
-                           used only for debugging purposes)
-  --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
-                           should be used only for debugging purposes)
-  --enable-random          randomly enable/disable components
-  --disable-random
-  --enable-random=LIST     randomly enable/disable specific components or
-  --disable-random=LIST    component groups. LIST is a comma-separated list
-                           of NAME[:PROB] entries where NAME is a component
-                           (group) and PROB the probability associated with
-                           NAME (default 0.5).
-  --random-seed=VALUE      seed value for --enable/disable-random
-  --disable-valgrind-backtrace do not print a backtrace under Valgrind
-                           (only applies to --disable-optimizations builds)
-  --enable-ossfuzz         Enable building fuzzer tool
-  --libfuzzer=PATH         path to libfuzzer
-  --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
-                           in the name) of tests whose result is ignored
-  --enable-linux-perf      enable Linux Performance Monitor API
-  --enable-macos-kperf     enable macOS kperf (private) API
-  --disable-large-tests    disable tests that use a large amount of memory
-  --disable-shader-compression don't compress shader code even when possible
-  --disable-resource-compression don't compress resources even when possible
-  --disable-version-tracking don't include the git/release version in the build
-
-NOTE: Object files are built at the place where configure is launched.
-EOF
-  exit 0
-}
-
-if test -t 1 && which tput >/dev/null 2>&1; then
-    ncolors=$(tput colors)
-    if test -n "$ncolors" && test $ncolors -ge 8; then
-        bold_color=$(tput bold)
-        warn_color=$(tput setaf 3)
-        error_color=$(tput setaf 1)
-        reset_color=$(tput sgr0)
-    fi
-    # 72 used instead of 80 since that's the default of pr
-    ncols=$(tput cols)
-fi
-: ${ncols:=72}
-
-log(){
-    echo "$@" >> $logfile
-}
-
-log_file(){
-    log BEGIN "$1"
-    log_file_i=1
-    while IFS= read -r log_file_line; do
-        printf '%5d\t%s\n' "$log_file_i" "$log_file_line"
-        log_file_i=$(($log_file_i+1))
-    done < "$1" >> "$logfile"
-    log END "$1"
-}
-
-warn(){
-    log "WARNING: $*"
-    WARNINGS="${WARNINGS}WARNING: $*\n"
-}
-
-die(){
-    log "$@"
-    echo "$error_color$bold_color$@$reset_color"
-    cat <<EOF
-
-If you think configure made a mistake, make sure you are using the latest
-version from Git.  If the latest version fails, report the problem to the
-ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.libera.chat.
-EOF
-    if disabled logging; then
-        cat <<EOF
-Rerun configure with logging enabled (do not use --disable-logging), and
-include the log this produces with your report.
-EOF
-    else
-        cat <<EOF
-Include the log file "$logfile" produced by configure as this will help
-solve the problem.
-EOF
-    fi
-    exit 1
-}
-
-# Avoid locale weirdness, besides we really just want to translate ASCII.
-toupper(){
-    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
-}
-
-tolower(){
-    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
-}
-
-c_escape(){
-    echo "$*" | sed 's/["\\]/\\\0/g'
-}
-
-sh_quote(){
-    v=$(echo "$1" | sed "s/'/'\\\\''/g")
-    test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
-    echo "$v"
-}
-
-cleanws(){
-    echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
-}
-
-filter(){
-    pat=$1
-    shift
-    for v; do
-        eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
-    done
-}
-
-filter_out(){
-    pat=$1
-    shift
-    for v; do
-        eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
-    done
-}
-
-map(){
-    m=$1
-    shift
-    for v; do eval $m; done
-}
-
-add_suffix(){
-    suffix=$1
-    shift
-    for v; do echo ${v}${suffix}; done
-}
-
-remove_suffix(){
-    suffix=$1
-    shift
-    for v; do echo ${v%$suffix}; done
-}
-
-set_all(){
-    value=$1
-    shift
-    for var in $*; do
-        eval $var=$value
-    done
-}
-
-set_weak(){
-    value=$1
-    shift
-    for var; do
-        eval : \${$var:=$value}
-    done
-}
-
-sanitize_var_name(){
-    echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
-}
-
-set_sanitized(){
-    var=$1
-    shift
-    eval $(sanitize_var_name "$var")='$*'
-}
-
-get_sanitized(){
-    eval echo \$$(sanitize_var_name "$1")
-}
-
-pushvar(){
-    for pvar in $*; do
-        eval level=\${${pvar}_level:=0}
-        eval ${pvar}_${level}="\$$pvar"
-        eval ${pvar}_level=$(($level+1))
-    done
-}
-
-popvar(){
-    for pvar in $*; do
-        eval level=\${${pvar}_level:-0}
-        test $level = 0 && continue
-        eval level=$(($level-1))
-        eval $pvar="\${${pvar}_${level}}"
-        eval ${pvar}_level=$level
-        eval unset ${pvar}_${level}
-    done
-}
-
-request(){
-    for var in $*; do
-        eval ${var}_requested=yes
-        eval $var=
-    done
-}
-
-warn_if_gets_disabled(){
-    for var in $*; do
-        WARN_IF_GETS_DISABLED_LIST="$WARN_IF_GETS_DISABLED_LIST $var"
-    done
-}
-
-enable(){
-    set_all yes $*
-}
-
-disable(){
-    set_all no $*
-}
-
-disable_with_reason(){
-    disable $1
-    eval "${1}_disable_reason=\"$2\""
-    if requested $1; then
-        die "ERROR: $1 requested, but $2"
-    fi
-}
-
-enable_weak(){
-    set_weak yes $*
-}
-
-disable_weak(){
-    set_weak no $*
-}
-
-enable_sanitized(){
-    for var; do
-        enable $(sanitize_var_name $var)
-    done
-}
-
-disable_sanitized(){
-    for var; do
-        disable $(sanitize_var_name $var)
-    done
-}
-
-do_enable_deep(){
-    for var; do
-        enabled $var && continue
-        set -- $var
-        eval enable_deep \$${var}_select
-        var=$1
-        eval enable_deep_weak \$${var}_suggest
-    done
-}
-
-enable_deep(){
-    do_enable_deep $*
-    enable $*
-}
-
-enable_deep_weak(){
-    for var; do
-        disabled $var && continue
-        set -- $var
-        do_enable_deep $var
-        var=$1
-        enable_weak $var
-    done
-}
-
-requested(){
-    test "${1#!}" = "$1" && op="=" || op="!="
-    eval test "x\$${1#!}_requested" $op "xyes"
-}
-
-enabled(){
-    test "${1#!}" = "$1" && op="=" || op="!="
-    eval test "x\$${1#!}" $op "xyes"
-}
-
-disabled(){
-    test "${1#!}" = "$1" && op="=" || op="!="
-    eval test "x\$${1#!}" $op "xno"
-}
-
-enabled_all(){
-    for opt; do
-        enabled $opt || return 1
-    done
-}
-
-disabled_all(){
-    for opt; do
-        disabled $opt || return 1
-    done
-}
-
-enabled_any(){
-    for opt; do
-        enabled $opt && return 0
-    done
-}
-
-disabled_any(){
-    for opt; do
-        disabled $opt && return 0
-    done
-    return 1
-}
-
-set_default(){
-    for opt; do
-        eval : \${$opt:=\$${opt}_default}
-    done
-}
-
-is_in(){
-    value=$1
-    shift
-    for var in $*; do
-        [ $var = $value ] && return 0
-    done
-    return 1
-}
-
-# The cfg loop is very hot (several thousands iterations), and in bash also
-# potentially quite slow. Try to abort the iterations early, preferably without
-# calling functions. 70%+ of the time cfg is already done or without deps.
-check_deps(){
-    for cfg; do
-        eval [ x\$${cfg}_checking = xdone ] && continue
-        eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
-
-        eval "
-        dep_all=\$${cfg}_deps
-        dep_any=\$${cfg}_deps_any
-        dep_con=\$${cfg}_conflict
-        dep_sel=\$${cfg}_select
-        dep_sgs=\$${cfg}_suggest
-        dep_ifa=\$${cfg}_if
-        dep_ifn=\$${cfg}_if_any
-        "
-
-        # most of the time here $cfg has no deps - avoid costly no-op work
-        if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
-            eval ${cfg}_checking=inprogress
-
-            set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
-            check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
-            cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
-
-            [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
-            [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
-            enabled_all  $dep_all || { disable_with_reason $cfg "not all dependencies are satisfied: $dep_all"; }
-            enabled_any  $dep_any || { disable_with_reason $cfg "not any dependency is satisfied: $dep_any"; }
-            disabled_all $dep_con || { disable_with_reason $cfg "some conflicting dependencies are unsatisfied: $dep_con"; }
-            disabled_any $dep_sel && { disable_with_reason $cfg "some selected dependency is unsatisfied: $dep_sel"; }
-
-            enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
-
-            for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
-                # filter out library deps, these do not belong in extralibs
-                is_in $dep $LIBRARY_LIST && continue
-                enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
-            done
-        fi
-
-        eval ${cfg}_checking=done
-    done
-}
-
-print_config(){
-    pfx=$1
-    files=$2
-    shift 2
-    map 'eval echo "$v \${$v:-no}"' "$@" |
-    awk "BEGIN { split(\"$files\", files) }
-        {
-            c = \"$pfx\" toupper(\$1);
-            v = \$2;
-            sub(/yes/, 1, v);
-            sub(/no/,  0, v);
-            for (f in files) {
-                file = files[f];
-                if (file ~ /\\.h\$/) {
-                    printf(\"#define %s %d\\n\", c, v) >>file;
-                } else if (file ~ /\\.asm\$/) {
-                    printf(\"%%define %s %d\\n\", c, v) >>file;
-                } else if (file ~ /\\.mak\$/) {
-                    n = -v ? \"\" : \"!\";
-                    printf(\"%s%s=yes\\n\", n, c) >>file;
-                } else if (file ~ /\\.texi\$/) {
-                    pre = -v ? \"\" : \"@c \";
-                    yesno = \$2;
-                    c2 = tolower(c);
-                    gsub(/_/, \"-\", c2);
-                    printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
-                }
-            }
-        }"
-}
-
-print_enabled(){
-    suf=$1
-    shift
-    for v; do
-        enabled $v && printf "%s\n" ${v%$suf}
-    done
-}
-
-append(){
-    var=$1
-    shift
-    eval "$var=\"\$$var $*\""
-}
-
-prepend(){
-    var=$1
-    shift
-    eval "$var=\"$* \$$var\""
-}
-
-reverse () {
-    eval '
-        reverse_out=
-        for v in $'$1'; do
-            reverse_out="$v $reverse_out"
-        done
-        '$1'=$reverse_out
-    '
-}
-
-# keeps the last occurrence of each non-unique item
-unique(){
-    unique_out=
-    eval unique_in=\$$1
-    reverse unique_in
-    for v in $unique_in; do
-        # " $unique_out" +space such that every item is surrounded with spaces
-        case " $unique_out" in *" $v "*) continue; esac  # already in list
-        unique_out="$unique_out$v "
-    done
-    reverse unique_out
-    eval $1=\$unique_out
-}
-
-resolve(){
-    resolve_out=
-    eval resolve_in=\$$1
-    for v in $resolve_in; do
-        eval 'resolve_out="$resolve_out$'$v' "'
-    done
-    eval $1=\$resolve_out
-}
-
-add_cppflags(){
-    append CPPFLAGS "$@"
-}
-
-add_cflags(){
-    append CFLAGS $($cflags_filter "$@")
-}
-
-add_cflags_headers(){
-    append CFLAGS_HEADERS $($cflags_filter "$@")
-}
-
-add_cxxflags(){
-    append CXXFLAGS $($cflags_filter "$@")
-}
-
-add_objcflags(){
-    append OBJCFLAGS $($objcflags_filter "$@")
-}
-
-add_allcflags(){
-    add_cflags "$@"
-    add_cxxflags "$@"
-    add_objcflags "$@"
-}
-
-add_asflags(){
-    append ASFLAGS $($asflags_filter "$@")
-}
-
-add_ldflags(){
-    append LDFLAGS $($ldflags_filter "$@")
-}
-
-add_ldexeflags(){
-    append LDEXEFLAGS $($ldflags_filter "$@")
-}
-
-add_ldsoflags(){
-    append LDSOFLAGS $($ldflags_filter "$@")
-}
-
-add_extralibs(){
-    prepend extralibs $($ldflags_filter "$@")
-}
-
-add_stripflags(){
-    append ASMSTRIPFLAGS "$@"
-}
-
-add_host_cppflags(){
-    append host_cppflags "$@"
-}
-
-add_host_cflags(){
-    append host_cflags $($host_cflags_filter "$@")
-}
-
-add_host_ldflags(){
-    append host_ldflags $($host_ldflags_filter "$@")
-}
-
-add_compat(){
-    append compat_objs $1
-    shift
-    map 'add_cppflags -D$v' "$@"
-}
-
-test_cmd(){
-    log "$@"
-    "$@" >> $logfile 2>&1
-}
-
-test_stat(){
-    log test_stat "$@"
-    stat "$1" >> $logfile 2>&1
-}
-
-cc_e(){
-    eval printf '%s\\n' $CC_E
-}
-
-cc_o(){
-    eval printf '%s\\n' $CC_O
-}
-
-cxx_e(){
-    eval printf '%s\\n' $CXX_E
-}
-
-cxx_o(){
-    eval printf '%s\\n' $CXX_O
-}
-
-as_o(){
-    eval printf '%s\\n' $AS_O
-}
-
-x86asm_o(){
-    eval printf '%s\\n' $X86ASM_O
-}
-
-ld_o(){
-    eval printf '%s\\n' $LD_O
-}
-
-hostcc_e(){
-    eval printf '%s\\n' $HOSTCC_E
-}
-
-hostcc_o(){
-    eval printf '%s\\n' $HOSTCC_O
-}
-
-glslc_o(){
-    eval printf '%s\\n' $GLSLC_O
-}
-
-nvcc_o(){
-    eval printf '%s\\n' $NVCC_O
-}
-
-test_cc(){
-    log test_cc "$@"
-    cat > $TMPC
-    log_file $TMPC
-    test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
-}
-
-test_cxx(){
-    log test_cxx "$@"
-    cat > $TMPCPP
-    log_file $TMPCPP
-    test_cmd $cxx $CPPFLAGS $CXXFLAGS "$@" $CXX_C $(cxx_o $TMPO) $TMPCPP
-}
-
-test_objcc(){
-    log test_objcc "$@"
-    cat > $TMPM
-    log_file $TMPM
-    test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
-}
-
-test_glslc(){
-    log test_glslc "$@"
-    cat > $TMPGLSL
-    log_file $TMPGLSL
-    test_cmd $glslc $GLSLCFLAGS $glslcflags "$@" $(glslc_o $TMPO) $TMPGLSL
-}
-
-check_glslc(){
-    log check_glslc "$@"
-    name=$1
-    shift 1
-    disable $name
-    test_glslc "$@" <<EOF && enable $name
-#version 460
-#pragma shader_stage(compute)
-#extension GL_GOOGLE_include_directive : require
-void main(void) {}
-EOF
-}
-
-test_nvcc(){
-    log test_nvcc "$@"
-    cat > $TMPCU
-    log_file $TMPCU
-    tmpcu_=$TMPCU
-    tmpo_=$TMPO
-    [ -x "$(command -v cygpath)" ] && tmpcu_=$(cygpath -m $tmpcu_) && tmpo_=$(cygpath -m $tmpo_)
-    test_cmd $nvcc $nvccflags "$@" $NVCC_C $(nvcc_o $tmpo_) $tmpcu_
-}
-
-check_nvcc() {
-    log check_nvcc "$@"
-    name=$1
-    shift 1
-    disabled $name && return
-    disable $name
-    test_nvcc "$@" <<EOF && enable $name
-extern "C" {
-    __global__ void hello(unsigned char *data) {}
-}
-EOF
-}
-
-test_cpp(){
-    log test_cpp "$@"
-    cat > $TMPC
-    log_file $TMPC
-    test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
-}
-
-test_as(){
-    log test_as "$@"
-    cat > $TMPS
-    log_file $TMPS
-    test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
-}
-
-test_x86asm(){
-    log test_x86asm "$@"
-    echo "$1" > $TMPASM
-    log_file $TMPASM
-    shift
-    test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
-}
-
-check_cmd(){
-    log check_cmd "$@"
-    cmd=$1
-    disabled $cmd && return
-    disable $cmd
-    test_cmd $@ && enable $cmd
-}
-
-check_as(){
-    log check_as "$@"
-    name=$1
-    code=$2
-    shift 2
-    disable $name
-    test_as $@ <<EOF && enable $name
-$code
-EOF
-}
-
-check_inline_asm(){
-    log check_inline_asm "$@"
-    name="$1"
-    code="$2"
-    shift 2
-    disable $name
-    test_cc "$@" <<EOF && enable $name
-void foo(void){ __asm__ volatile($code); }
-EOF
-}
-
-check_inline_asm_flags(){
-    log check_inline_asm_flags "$@"
-    name="$1"
-    code="$2"
-    flags=''
-    shift 2
-    while [ "$1" != "" ]; do
-      append flags $1
-      shift
-    done;
-    disable $name
-    cat > $TMPC <<EOF
-void foo(void){ __asm__ volatile($code); }
-EOF
-    log_file $TMPC
-    test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
-    enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
-}
-
-check_insn(){
-    log check_insn "$@"
-    check_inline_asm ${1}_inline "\"$2\""
-    check_as ${1}_external "$2"
-}
-
-check_arch_level(){
-    log check_arch_level "$@"
-    level="$1"
-    check_as tested_arch_level ".arch $level"
-    enabled tested_arch_level && as_arch_level="$level"
-}
-
-check_archext_name_insn(){
-    log check_archext_name_insn "$@"
-    feature="$1"
-    archext="$2"
-    instr="$3"
-    instr2="$4"
-    # Check if the assembly is accepted in inline assembly.
-    check_inline_asm ${feature}_inline "\"$instr \n\t $instr2\""
-    # We don't check if the instruction is supported out of the box by the
-    # external assembler (we don't try to set ${feature}_external) as we don't
-    # need to use these instructions in non-runtime detected codepaths.
-
-    disable $feature
-
-    enabled as_arch_directive && arch_directive=".arch $as_arch_level" || arch_directive=""
-
-    # Test if the assembler supports the .arch_extension $archext directive.
-    arch_extension_directive=".arch_extension $archext"
-    test_as <<EOF && enable as_archext_${archext}_directive || arch_extension_directive=""
-$arch_directive
-$arch_extension_directive
-EOF
-
-    # Test if we can assemble the instruction after potential .arch and
-    # .arch_extension directives.
-    test_as <<EOF && enable ${feature}
-$arch_directive
-$arch_extension_directive
-$instr
-$instr2
-EOF
-}
-
-check_archext_insn(){
-    log check_archext_insn "$@"
-    feature="$1"
-    instr="$2"
-    instr2="$3"
-    check_archext_name_insn "$feature" "$feature" "$instr" "$instr2"
-}
-
-check_x86asm(){
-    log check_x86asm "$@"
-    name=$1
-    shift
-    disable $name
-    test_x86asm "$@" && enable $name
-}
-
-test_ld(){
-    log test_ld "$@"
-    type=$1
-    shift 1
-    flags=$(filter_out '-l*|*.so' $@)
-    libs=$(filter '-l*|*.so' $@)
-    test_$type $($cflags_filter $flags) || return
-    flags=$($ldflags_filter $flags)
-    libs=$($ldflags_filter $libs)
-    test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
-}
-
-check_ld(){
-    log check_ld "$@"
-    type=$1
-    name=$2
-    shift 2
-    disable $name
-    test_ld $type $@ && enable $name
-}
-
-print_include(){
-    hdr=$1
-    test "${hdr%.h}" = "${hdr}" &&
-        echo "#include $hdr"    ||
-        echo "#include <$hdr>"
-}
-
-test_code(){
-    log test_code "$@"
-    check=$1
-    headers=$2
-    code=$3
-    shift 3
-    {
-        for hdr in $headers; do
-            print_include $hdr
-        done
-        echo "int main(void) { $code; return 0; }"
-    } | test_$check "$@"
-}
-
-check_cppflags(){
-    log check_cppflags "$@"
-    test_cpp "$@" <<EOF && append CPPFLAGS "$@"
-#include <stdlib.h>
-EOF
-}
-
-test_cflags(){
-    log test_cflags "$@"
-    set -- $($cflags_filter "$@")
-    test_cc "$@" <<EOF
-int x;
-EOF
-}
-
-check_cflags(){
-    log check_cflags "$@"
-    test_cflags "$@" && add_cflags "$@"
-}
-
-test_cxxflags(){
-    log test_cxxflags "$@"
-    set -- $($cflags_filter "$@")
-    test_cxx "$@" <<EOF
-int x;
-EOF
-}
-
-check_cxxflags(){
-    log check_cxxflags "$@"
-    test_cxxflags "$@" && add_cxxflags "$@"
-}
-
-test_objcflags(){
-    log test_objcflags "$@"
-    set -- $($objcflags_filter "$@")
-    test_objcc "$@" <<EOF
-int x;
-EOF
-}
-
-check_objcflags(){
-    log check_objcflags "$@"
-    test_objcflags "$@" && add_objcflags "$@"
-}
-
-check_allcflags(){
-    allcret=0
-    check_cflags "$@" || allcret=$?
-    check_cxxflags "$@" || allcret=$?
-    check_objcflags "$@" || allcret=$?
-    return $allcret
-}
-
-test_ldflags(){
-    log test_ldflags "$@"
-    set -- $($ldflags_filter "$@")
-    test_ld "cc" "$@" <<EOF
-int main(void){ return 0; }
-EOF
-}
-
-check_ldflags(){
-    log check_ldflags "$@"
-    test_ldflags "$@" && add_ldflags "$@"
-}
-
-test_stripflags(){
-    log test_stripflags "$@"
-    # call test_cc to get a fresh TMPO
-    test_cc <<EOF
-int main(void) { return 0; }
-EOF
-    test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
-}
-
-check_stripflags(){
-    log check_stripflags "$@"
-    test_stripflags "$@" && add_stripflags "$@"
-}
-
-check_headers(){
-    log check_headers "$@"
-    headers=$1
-    shift
-    disable_sanitized $headers
-    {
-        for hdr in $headers; do
-            print_include $hdr
-        done
-        echo "int x;"
-    } | test_cpp "$@" && enable_sanitized $headers
-}
-
-check_header_objcc(){
-    log check_header_objcc "$@"
-    rm -f -- "$TMPO"
-    header=$1
-    shift
-    disable_sanitized $header
-    {
-       echo "#include <$header>"
-       echo "int main(void) { return 0; }"
-    } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
-}
-
-check_apple_framework(){
-    log check_apple_framework "$@"
-    framework="$1"
-    name="$(tolower $framework)"
-    header="${framework}/${framework}.h"
-    disable $name
-    check_header_objcc $header &&
-        enable $name && eval ${name}_extralibs='"-framework $framework"'
-}
-
-check_func(){
-    log check_func "$@"
-    func=$1
-    shift
-    disable $func
-    test_ld "cc" "$@" <<EOF && enable $func
-extern int $func();
-int main(void){ $func(); }
-EOF
-}
-
-check_mathfunc(){
-    log check_mathfunc "$@"
-    func=$1
-    narg=$2
-    shift 2
-    test $narg = 2 && args="f, g" || args="f"
-    disable $func
-    test_ld "cc" "$@" <<EOF && enable $func
-#include <math.h>
-float foo(float f, float g) { return $func($args); }
-int main(void){ return (int) foo; }
-EOF
-}
-
-check_func_headers(){
-    log check_func_headers "$@"
-    headers=$1
-    funcs=$2
-    shift 2
-    {
-        for hdr in $headers; do
-            print_include $hdr
-        done
-        echo "#include <stdint.h>"
-        for func in $funcs; do
-            echo "long check_$func(void) { return (long) $func; }"
-        done
-        echo "int main(void) { int ret = 0;"
-        # LTO could optimize out the test functions without this
-        for func in $funcs; do
-            echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
-        done
-        echo "return ret; }"
-    } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
-}
-
-check_class_headers_cxx(){
-    log check_class_headers_cxx "$@"
-    headers=$1
-    classes=$2
-    shift 2
-    {
-        for hdr in $headers; do
-            echo "#include <$hdr>"
-        done
-        echo "int main(void) { "
-        i=1
-        for class in $classes; do
-            echo "$class *obj$i;"
-            i=$(expr $i + 1)
-        done
-        echo "return 0; }"
-    } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
-}
-
-test_cpp_condition(){
-    log test_cpp_condition "$@"
-    header=$1
-    condition=$2
-    shift 2
-    test_cpp "$@" <<EOF
-#include <$header>
-#if !($condition)
-#error "unsatisfied condition: $condition"
-#endif
-EOF
-}
-
-check_cpp_condition(){
-    log check_cpp_condition "$@"
-    name=$1
-    shift 1
-    disable $name
-    test_cpp_condition "$@" && enable $name
-}
-
-test_cflags_cc(){
-    log test_cflags_cc "$@"
-    flags=$1
-    header=$2
-    condition=$3
-    shift 3
-    set -- $($cflags_filter "$flags")
-    test_cc "$@" <<EOF
-#include <$header>
-#if !($condition)
-#error "unsatisfied condition: $condition"
-#endif
-EOF
-}
-
-check_cflags_cc(){
-    log check_cflags_cc "$@"
-    flags=$1
-    test_cflags_cc "$@" && add_cflags $flags
-}
-
-test_cxxflags_cc(){
-    log test_cxxflags_cc "$@"
-    flags=$1
-    header=$2
-    condition=$3
-    shift 3
-    set -- $($cflags_filter "$flags")
-    test_cxx "$@" <<EOF
-#include <$header>
-#if !($condition)
-#error "unsatisfied condition: $condition"
-#endif
-EOF
-}
-
-check_cxxflags_cc(){
-    log check_cxxflags_cc "$@"
-    flags=$1
-    test_cxxflags_cc "$@" && add_cxxflags $flags
-}
-
-check_lib(){
-    log check_lib "$@"
-    name="$1"
-    headers="$2"
-    funcs="$3"
-    shift 3
-    disable $name
-    check_func_headers "$headers" "$funcs" "$@" &&
-        enable $name && eval ${name}_extralibs="\$@"
-}
-
-check_lib_cxx(){
-    log check_lib_cxx "$@"
-    name="$1"
-    headers="$2"
-    classes="$3"
-    shift 3
-    disable $name
-    check_class_headers_cxx "$headers" "$classes" "$@" &&
-        enable $name && eval ${name}_extralibs="\$@"
-}
-
-test_pkg_config(){
-    log test_pkg_config "$@"
-    name="$1"
-    pkg_version="$2"
-    pkg="${2%% *}"
-    headers="$3"
-    funcs="$4"
-    shift 4
-    disable $name
-    test_cmd $pkg_config --exists --print-errors "$pkg_version" || return
-    pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
-    pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
-    pkg_incdir=$($pkg_config --variable=includedir $pkg_config_flags $pkg)
-    check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
-        enable $name &&
-        set_sanitized "${name}_cflags"    $pkg_cflags &&
-        set_sanitized "${name}_incdir"    $pkg_incdir &&
-        set_sanitized "${name}_extralibs" $pkg_libs
-}
-
-test_pkg_config_cpp(){
-    log test_pkg_config_cpp "$@"
-    name="$1"
-    pkg_version="$2"
-    pkg="${2%% *}"
-    headers="$3"
-    cond="$4"
-    shift 4
-    disable $name
-    test_cmd $pkg_config --exists --print-errors "$pkg_version" || return
-    pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
-    pkg_incdir=$($pkg_config --variable=includedir $pkg_config_flags $pkg)
-    pkg_incflags=$($pkg_config --cflags-only-I $pkg_config_flags $pkg)
-    test_cpp_condition "$pkg_incdir/$headers" "$cond" $pkg_cflags "$@" &&
-        enable $name &&
-        set_sanitized "${name}_cflags" $pkg_cflags &&
-        set_sanitized "${name}_incdir" $pkg_incdir &&
-        set_sanitized "${name}_incflags" $pkg_incflags
-}
-
-test_pkg_config_cxx(){
-    log test_pkg_config_cxx "$@"
-    name="$1"
-    pkg_version="$2"
-    pkg="${2%% *}"
-    headers="$3"
-    classes="$4"
-    shift 4
-    disable $name
-    test_cmd $pkg_config --exists --print-errors $pkg_version || return
-    pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
-    pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
-    pkg_incdir=$($pkg_config --variable=includedir $pkg_config_flags $pkg)
-    check_class_headers_cxx "$headers" "$classes" $pkg_cflags $pkg_libs "-lstdc++" "$@" &&
-        enable $name &&
-        set_sanitized "${name}_cflags"    $pkg_cflags &&
-        set_sanitized "${name}_incdir"    $pkg_incdir &&
-        set_sanitized "${name}_extralibs" $pkg_libs "-lstdc++"
-}
-
-check_pkg_config(){
-    log check_pkg_config "$@"
-    name="$1"
-    test_pkg_config "$@" &&
-        eval add_cflags \$${name}_cflags
-}
-
-check_pkg_config_cpp(){
-    log check_pkg_config_cpp "$@"
-    name="$1"
-    test_pkg_config_cpp "$@" &&
-        eval add_cflags \$${name}_cflags
-}
-
-check_pkg_config_cxx(){
-    log check_pkg_config_cxx "$@"
-    name="$1"
-    test_pkg_config_cxx "$@" &&
-        eval add_cxxflags \$${name}_cflags
-}
-
-check_pkg_config_header_only(){
-    log check_pkg_config_cpp "$@"
-    name="$1"
-    test_pkg_config_cpp "$@" &&
-        eval add_cflags \$${name}_incflags
-}
-
-test_exec(){
-    test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
-}
-
-check_exec_crash(){
-    log check_exec_crash "$@"
-    code=$(cat)
-
-    # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
-    # are safe but may not be available everywhere.  Thus we use
-    # raise(SIGTERM) instead.  The check is run in a subshell so we
-    # can redirect the "Terminated" message from the shell.  SIGBUS
-    # is not defined by standard C so it is used conditionally.
-
-    (test_exec "$@") >> $logfile 2>&1 <<EOF
-#include <signal.h>
-static void sighandler(int sig){
-    raise(SIGTERM);
-}
-int foo(void){
-    $code
-}
-int (*func_ptr)(void) = foo;
-int main(void){
-    signal(SIGILL, sighandler);
-    signal(SIGFPE, sighandler);
-    signal(SIGSEGV, sighandler);
-#ifdef SIGBUS
-    signal(SIGBUS, sighandler);
-#endif
-    return func_ptr();
-}
-EOF
-}
-
-check_type(){
-    log check_type "$@"
-    headers=$1
-    type=$2
-    shift 2
-    disable_sanitized "$type"
-    test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
-}
-
-check_objc_class(){
-    log check_objc_class "$@"
-    headers=$1
-    type=$2
-    shift 2
-    disable_sanitized "$type"
-    test_code objcc "$headers" "$type* v" "$@" && enable_sanitized "$type"
-}
-
-check_struct(){
-    log check_struct "$@"
-    headers=$1
-    struct=$2
-    member=$3
-    shift 3
-    disable_sanitized "${struct}_${member}"
-    test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
-        enable_sanitized "${struct}_${member}"
-}
-
-check_builtin(){
-    log check_builtin "$@"
-    name=$1
-    headers=$2
-    builtin=$3
-    shift 3
-    disable "$name"
-    test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
-}
-
-check_compile_assert(){
-    log check_compile_assert "$@"
-    name=$1
-    headers=$2
-    condition=$3
-    shift 3
-    disable "$name"
-    test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
-}
-
-check_cc(){
-    log check_cc "$@"
-    name=$1
-    shift
-    disable "$name"
-    test_code cc "$@" && enable "$name"
-}
-
-require(){
-    log require "$@"
-    name_version="$1"
-    name="${1%% *}"
-    shift
-    check_lib $name "$@" || die "ERROR: $name_version not found"
-}
-
-require_cc(){
-    log require_cc "$@"
-    name="$1"
-    check_cc "$@" || die "ERROR: $name failed"
-}
-
-require_cxx(){
-    log require_cxx "$@"
-    name_version="$1"
-    name="${1%% *}"
-    shift
-    check_lib_cxx "$name" "$@" || die "ERROR: $name_version not found"
-}
-
-require_headers(){
-    log require_headers "$@"
-    headers="$1"
-    check_headers "$@" || die "ERROR: $headers not found"
-}
-
-require_cpp_condition(){
-    log require_cpp_condition "$@"
-    condition="$3"
-    check_cpp_condition "$@" || die "ERROR: $condition not satisfied"
-}
-
-require_pkg_config(){
-    log require_pkg_config "$@"
-    pkg_version="$2"
-    check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
-}
-
-require_pkg_config_cpp(){
-    log require_pkg_config_cpp "$@"
-    pkg_version="$2"
-    check_pkg_config_cpp "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
-}
-
-require_pkg_config_cxx(){
-    log require_pkg_config_cxx "$@"
-    pkg_version="$2"
-    check_pkg_config_cxx "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
-}
-
-test_host_cc(){
-    log test_host_cc "$@"
-    cat > $TMPC
-    log_file $TMPC
-    test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
-}
-
-test_host_cpp(){
-    log test_host_cpp "$@"
-    cat > $TMPC
-    log_file $TMPC
-    test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
-}
-
-check_host_cppflags(){
-    log check_host_cppflags "$@"
-    test_host_cpp "$@" <<EOF && append host_cppflags "$@"
-#include <stdlib.h>
-EOF
-}
-
-check_host_cflags(){
-    log check_host_cflags "$@"
-    set -- $($host_cflags_filter "$@")
-    test_host_cc "$@" <<EOF && append host_cflags "$@"
-int x;
-EOF
-}
-
-test_host_cflags_cc(){
-    log test_host_cflags_cc "$@"
-    flags=$1
-    header=$2
-    condition=$3
-    shift 3
-    set -- $($host_cflags_filter "$flags")
-    test_host_cc "$@" <<EOF
-#include <$header>
-#if !($condition)
-#error "unsatisfied condition: $condition"
-#endif
-EOF
-}
-
-check_host_cflags_cc(){
-    log check_host_cflags_cc "$@"
-    flags=$1
-    test_host_cflags_cc "$@" && add_host_cflags $flags
-}
-
-test_host_cpp_condition(){
-    log test_host_cpp_condition "$@"
-    header=$1
-    condition=$2
-    shift 2
-    test_host_cpp "$@" <<EOF
-#include <$header>
-#if !($condition)
-#error "unsatisfied condition: $condition"
-#endif
-EOF
-}
-
-check_host_cpp_condition(){
-    log check_host_cpp_condition "$@"
-    name=$1
-    shift 1
-    disable $name
-    test_host_cpp_condition "$@" && enable $name
-}
-
-cp_if_changed(){
-    cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
-    mkdir -p "$(dirname $2)"
-    cp -f "$1" "$2"
-}
-
-# CONFIG_LIST contains configurable options, while HAVE_LIST is for
-# system-dependent things.
-
-AVCODEC_COMPONENTS="
-    bsfs
-    decoders
-    encoders
-    hwaccels
-    parsers
-"
-
-AVDEVICE_COMPONENTS="
-    indevs
-    outdevs
-"
-
-AVFILTER_COMPONENTS="
-    filters
-"
-
-AVFORMAT_COMPONENTS="
-    demuxers
-    muxers
-    protocols
-"
-
-COMPONENT_LIST="
-    $AVCODEC_COMPONENTS
-    $AVDEVICE_COMPONENTS
-    $AVFILTER_COMPONENTS
-    $AVFORMAT_COMPONENTS
-"
-
-EXAMPLE_LIST="
-    avio_http_serve_files_example
-    avio_list_dir_example
-    avio_read_callback_example
-    decode_audio_example
-    decode_filter_audio_example
-    decode_filter_video_example
-    decode_video_example
-    demux_decode_example
-    encode_audio_example
-    encode_video_example
-    extract_mvs_example
-    filter_audio_example
-    hw_decode_example
-    mux_example
-    qsv_decode_example
-    remux_example
-    resample_audio_example
-    scale_video_example
-    show_metadata_example
-    transcode_aac_example
-    transcode_example
-    vaapi_encode_example
-    vaapi_transcode_example
-    qsv_transcode_example
-"
-
-EXTERNAL_AUTODETECT_LIBRARY_LIST="
-    alsa
-    appkit
-    avfoundation
-    bzlib
-    coreimage
-    iconv
-    libxcb
-    libxcb_shm
-    libxcb_shape
-    libxcb_xfixes
-    lzma
-    mediafoundation
-    metal
-    schannel
-    sdl2
-    securetransport
-    sndio
-    xlib
-    zlib
-"
-
-EXTERNAL_LIBRARY_GPL_LIST="
-    avisynth
-    frei0r
-    libcdio
-    libdavs2
-    libdvdnav
-    libdvdread
-    librubberband
-    libvidstab
-    libx264
-    libx265
-    libxavs
-    libxavs2
-    libxvid
-"
-
-EXTERNAL_LIBRARY_NONFREE_LIST="
-    decklink
-    libfdk_aac
-    libmpeghdec
-"
-
-EXTERNAL_LIBRARY_VERSION3_LIST="
-    gmp
-    libaribb24
-    liblensfun
-    libopencore_amrnb
-    libopencore_amrwb
-    libvo_amrwbenc
-    mbedtls
-    rkmpp
-"
-
-EXTERNAL_LIBRARY_GPLV3_LIST="
-    libsmbclient
-"
-
-EXTERNAL_LIBRARY_LIST="
-    $EXTERNAL_LIBRARY_GPL_LIST
-    $EXTERNAL_LIBRARY_NONFREE_LIST
-    $EXTERNAL_LIBRARY_VERSION3_LIST
-    $EXTERNAL_LIBRARY_GPLV3_LIST
-    cairo
-    chromaprint
-    gcrypt
-    gnutls
-    jni
-    ladspa
-    lcms2
-    libaom
-    libaribcaption
-    libass
-    libbluray
-    libbs2b
-    libcaca
-    libcelt
-    libcodec2
-    libdav1d
-    libdc1394
-    libflite
-    libfontconfig
-    libfreetype
-    libfribidi
-    libharfbuzz
-    libglslang
-    libgme
-    libgsm
-    libiec61883
-    libilbc
-    libjack
-    libjxl
-    libklvanc
-    libkvazaar
-    liblc3
-    liblcevc_dec
-    libmodplug
-    libmp3lame
-    libmysofa
-    liboapv
-    libopencv
-    libopencolorio
-    libopenh264
-    libopenjpeg
-    libopenmpt
-    libopenvino
-    libopus
-    libplacebo
-    libpulse
-    libqrencode
-    libquirc
-    librabbitmq
-    librav1e
-    librist
-    librsvg
-    librtmp
-    libshaderc
-    libshine
-    libsmbclient
-    libsnappy
-    libsoxr
-    libspeex
-    libsrt
-    libssh
-    libsvtav1
-    libsvtjpegxs
-    libtensorflow
-    libtesseract
-    libtheora
-    libtls
-    libtorch
-    libtwolame
-    libuavs3d
-    libv4l2
-    libvmaf
-    libvorbis
-    libvpx
-    libvvenc
-    libwebp
-    libxevd
-    libxevdb
-    libxeve
-    libxeveb
-    libxml2
-    libzimg
-    libzmq
-    libzvbi
-    lv2
-    mediacodec
-    ohcodec
-    openal
-    opengl
-    openssl
-    pocketsphinx
-    vapoursynth
-    vulkan_static
-    whisper
-"
-
-HWACCEL_AUTODETECT_LIBRARY_LIST="
-    amf
-    audiotoolbox
-    cuda
-    cuda_llvm
-    cuvid
-    d3d11va
-    d3d12va
-    dxva2
-    ffnvcodec
-    libdrm
-    nvdec
-    nvenc
-    vaapi
-    vdpau
-    videotoolbox
-    vulkan
-    v4l2_m2m
-"
-
-# catchall list of things that require external libs to link
-EXTRALIBS_LIST="
-    cpu_init
-    cws2fws
-"
-
-HWACCEL_LIBRARY_NONFREE_LIST="
-    cuda_nvcc
-    cuda_sdk
-    libnpp
-"
-
-HWACCEL_LIBRARY_LIST="
-    $HWACCEL_LIBRARY_NONFREE_LIST
-    libmfx
-    libvpl
-    mmal
-    omx
-    opencl
-"
-
-DOCUMENT_LIST="
-    doc
-    htmlpages
-    manpages
-    podpages
-    txtpages
-"
-
-FEATURE_LIST="
-    ftrapv
-    gray
-    hardcoded_tables
-    omx_rpi
-    runtime_cpudetect
-    safe_bitstream_reader
-    shared
-    small
-    static
-    swscale_alpha
-    unstable
-"
-
-# this list should be kept in linking order
-LIBRARY_LIST="
-    avdevice
-    avfilter
-    swscale
-    avformat
-    avcodec
-    swresample
-    avutil
-"
-
-LICENSE_LIST="
-    gpl
-    nonfree
-    version3
-"
-
-PROGRAM_LIST="
-    ffplay
-    ffprobe
-    ffmpeg
-"
-
-SUBSYSTEM_LIST="
-    dwt
-    error_resilience
-    faan
-    fast_unaligned
-    iamf
-    lsp
-    pixelutils
-    network
-"
-
-# COMPONENT_LIST needs to come last to ensure correct dependency checking
-CONFIG_LIST="
-    $DOCUMENT_LIST
-    $EXAMPLE_LIST
-    $EXTERNAL_LIBRARY_LIST
-    $EXTERNAL_AUTODETECT_LIBRARY_LIST
-    $HWACCEL_LIBRARY_LIST
-    $HWACCEL_AUTODETECT_LIBRARY_LIST
-    $FEATURE_LIST
-    $LICENSE_LIST
-    $LIBRARY_LIST
-    $PROGRAM_LIST
-    $SUBSYSTEM_LIST
-    autodetect
-    fontconfig
-    large_tests
-    linux_perf
-    macos_kperf
-    memory_poisoning
-    neon_clobber_test
-    ossfuzz
-    pic
-    shader_compression
-    resource_compression
-    thumb
-    valgrind_backtrace
-    xmm_clobber_test
-    $COMPONENT_LIST
-"
-
-THREADS_LIST="
-    pthreads
-    os2threads
-    w32threads
-"
-
-ATOMICS_LIST="
-    atomics_win32
-"
-
-AUTODETECT_LIBS="
-    $EXTERNAL_AUTODETECT_LIBRARY_LIST
-    $HWACCEL_AUTODETECT_LIBRARY_LIST
-    $THREADS_LIST
-"
-
-ARCH_LIST="
-    aarch64
-    arm
-    ia64
-    loongarch
-    loongarch32
-    loongarch64
-    m68k
-    mips
-    mips64
-    parisc
-    ppc
-    ppc64
-    riscv
-    s390
-    sparc
-    sparc64
-    tilegx
-    tilepro
-    wasm
-    x86
-    x86_32
-    x86_64
-"
-
-ARCH_EXT_LIST_ARM="
-    armv5te
-    armv6
-    armv6t2
-    armv8
-    arm_crc
-    dotprod
-    i8mm
-    neon
-    vfp
-    vfpv3
-    setend
-    sve
-    sve2
-    sme
-"
-
-ARCH_EXT_LIST_MIPS="
-    mipsfpu
-    mips32r2
-    mips32r5
-    mips64r2
-    mips32r6
-    mips64r6
-    mipsdsp
-    mipsdspr2
-    msa
-"
-
-ARCH_EXT_LIST_LOONGSON="
-    loongson2
-    loongson3
-    mmi
-    lsx
-    lasx
-"
-
-ARCH_EXT_LIST_WASM="
-    simd128
-"
-
-ARCH_EXT_LIST_X86_SIMD="
-    aesni
-    clmul
-    amd3dnow
-    amd3dnowext
-    avx
-    avx2
-    avx512
-    avx512icl
-    fma3
-    fma4
-    mmx
-    mmxext
-    sse
-    sse2
-    sse3
-    sse4
-    sse42
-    ssse3
-    xop
-"
-
-ARCH_EXT_LIST_PPC="
-    altivec
-    dcbzl
-    ldbrx
-    power8
-    ppc4xx
-    vec_xl
-    vsx
-"
-
-ARCH_EXT_LIST_RISCV="
-    rv
-    rvv
-    rv_zicbop
-    rv_zvbb
-"
-
-ARCH_EXT_LIST_X86="
-    $ARCH_EXT_LIST_X86_SIMD
-    i686
-"
-
-ARCH_EXT_LIST="
-    $ARCH_EXT_LIST_ARM
-    $ARCH_EXT_LIST_PPC
-    $ARCH_EXT_LIST_RISCV
-    $ARCH_EXT_LIST_WASM
-    $ARCH_EXT_LIST_X86
-    $ARCH_EXT_LIST_MIPS
-    $ARCH_EXT_LIST_LOONGSON
-"
-
-ARCH_FEATURES="
-    aligned_stack
-    fast_64bit
-    fast_clz
-    fast_cmov
-    fast_float16
-    simd_align_16
-    simd_align_32
-    simd_align_64
-"
-
-BUILTIN_LIST="
-    MemoryBarrier
-    mm_empty
-    rdtsc
-    sem_timedwait
-"
-HAVE_LIST_CMDLINE="
-    inline_asm
-    symver
-    x86asm
-"
-
-HAVE_LIST_PUB="
-    bigendian
-    fast_unaligned
-"
-
-HEADERS_LIST="
-    arpa_inet_h
-    asm_hwprobe_h
-    asm_types_h
-    cdio_paranoia_h
-    cdio_paranoia_paranoia_h
-    cuda_h
-    dispatch_dispatch_h
-    direct_h
-    dirent_h
-    dxgidebug_h
-    dxva_h
-    ES2_gl_h
-    gsm_h
-    io_h
-    linux_dma_buf_h
-    linux_perf_event_h
-    malloc_h
-    poll_h
-    pthread_np_h
-    sys_hwprobe_h
-    sys_param_h
-    sys_resource_h
-    sys_select_h
-    sys_soundcard_h
-    sys_time_h
-    sys_un_h
-    sys_videoio_h
-    termios_h
-    udplite_h
-    unistd_h
-    valgrind_valgrind_h
-    windows_h
-    winsock2_h
-"
-
-INTRINSICS_LIST="
-    intrinsics_neon
-    intrinsics_sse2
-"
-
-MATH_FUNCS="
-    atanf
-    atan2f
-    cbrt
-    cbrtf
-    copysign
-    cosf
-    erf
-    exp2
-    exp2f
-    expf
-    hypot
-    isfinite
-    isinf
-    isnan
-    ldexpf
-    llrint
-    llrintf
-    log2
-    log2f
-    log10f
-    lrint
-    lrintf
-    powf
-    rint
-    round
-    roundf
-    sinf
-    trunc
-    truncf
-"
-
-SYSTEM_FEATURES="
-    dos_paths
-    libc_msvcrt
-    MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
-    section_data_rel_ro
-    threads
-    uwp
-    winrt
-"
-
-SYSTEM_FUNCS="
-    access
-    aligned_malloc
-    arc4random_buf
-    clock_gettime
-    closesocket
-    CommandLineToArgvW
-    elf_aux_info
-    fcntl
-    getaddrinfo
-    getauxval
-    getenv
-    gethrtime
-    getopt
-    GetModuleHandle
-    GetProcessAffinityMask
-    GetProcessMemoryInfo
-    GetProcessTimes
-    getrusage
-    GetStdHandle
-    GetSystemTimeAsFileTime
-    gettimeofday
-    glob
-    glXGetProcAddress
-    gmtime_r
-    inet_aton
-    isatty
-    kbhit
-    localtime_r
-    lstat
-    lzo1x_999_compress
-    mach_absolute_time
-    MapViewOfFile
-    memalign
-    mkstemp
-    mmap
-    mprotect
-    nanosleep
-    PeekNamedPipe
-    posix_memalign
-    prctl
-    pthread_cancel
-    pthread_set_name_np
-    pthread_setname_np
-    sched_getaffinity
-    SecItemImport
-    SetConsoleTextAttribute
-    SetConsoleCtrlHandler
-    SetDllDirectory
-    setmode
-    setrlimit
-    Sleep
-    strerror_r
-    sysconf
-    sysctl
-    sysctlbyname
-    tempnam
-    usleep
-    UTGetOSTypeFromString
-    VirtualAlloc
-    wglGetProcAddress
-"
-
-SYSTEM_LIBRARIES="
-    bcrypt
-    vaapi_drm
-    vaapi_x11
-    vaapi_win32
-    vdpau_x11
-"
-
-TOOLCHAIN_FEATURES="
-    as_arch_directive
-    as_archext_crc_directive
-    as_archext_dotprod_directive
-    as_archext_i8mm_directive
-    as_archext_sve_directive
-    as_archext_sve2_directive
-    as_archext_sme_directive
-    as_dn_directive
-    as_fpu_directive
-    as_func
-    as_object_arch
-    asm_mod_q
-    blocks_extension
-    ebp_available
-    ebx_available
-    gnu_as
-    gnu_windres
-    ibm_asm
-    inline_asm_direct_symbol_refs
-    inline_asm_labels
-    inline_asm_nonlocal_labels
-    pragma_deprecated
-    rsync_contimeout
-    symver_asm_label
-    symver_gnu_asm
-    vfp_args
-    xform_asm
-    xmm_clobbers
-"
-
-TYPES_LIST="
-    DPI_AWARENESS_CONTEXT
-    IDXGIOutput5
-    __x_ABI_CWindows_CGraphics_CCapture_CIGraphicsCaptureSession5
-    IDirect3DDxgiInterfaceAccess
-    kCMVideoCodecType_HEVC
-    kCMVideoCodecType_HEVCWithAlpha
-    kCMVideoCodecType_VP9
-    kCMVideoCodecType_AV1
-    kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange
-    kCVPixelFormatType_422YpCbCr8BiPlanarVideoRange
-    kCVPixelFormatType_422YpCbCr10BiPlanarVideoRange
-    kCVPixelFormatType_422YpCbCr16BiPlanarVideoRange
-    kCVPixelFormatType_444YpCbCr8BiPlanarVideoRange
-    kCVPixelFormatType_444YpCbCr10BiPlanarVideoRange
-    kCVPixelFormatType_444YpCbCr16BiPlanarVideoRange
-    kCVPixelFormatType_422YpCbCr8_yuvs
-    kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ
-    kCVImageBufferTransferFunction_ITU_R_2100_HLG
-    kCVImageBufferTransferFunction_Linear
-    kCVImageBufferYCbCrMatrix_ITU_R_2020
-    kCVImageBufferColorPrimaries_ITU_R_2020
-    kCVImageBufferTransferFunction_ITU_R_2020
-    kCVImageBufferTransferFunction_SMPTE_ST_428_1
-    kVTQPModulationLevel_Default
-    SecPkgContext_KeyingMaterialInfo
-    socklen_t
-    struct_addrinfo
-    struct_group_source_req
-    struct_ip_mreq_source
-    struct_ipv6_mreq
-    struct_msghdr_msg_flags
-    struct_pollfd
-    struct_rusage_ru_maxrss
-    struct_sctp_event_subscribe
-    struct_sockaddr_in6
-    struct_sockaddr_sa_len
-    struct_sockaddr_storage
-    struct_stat_st_mtim_tv_nsec
-    struct_v4l2_frmivalenum_discrete
-    struct_mfxConfigInterface
-"
-
-HAVE_LIST="
-    $ARCH_EXT_LIST
-    $(add_suffix _external $ARCH_EXT_LIST)
-    $(add_suffix _inline   $ARCH_EXT_LIST)
-    $ARCH_FEATURES
-    $BUILTIN_LIST
-    $HAVE_LIST_CMDLINE
-    $HAVE_LIST_PUB
-    $HEADERS_LIST
-    $INTRINSICS_LIST
-    $MATH_FUNCS
-    $SYSTEM_FEATURES
-    $SYSTEM_FUNCS
-    $SYSTEM_LIBRARIES
-    $THREADS_LIST
-    $TOOLCHAIN_FEATURES
-    $TYPES_LIST
-    gzip
-    ioctl_posix
-    libdrm_getfb2
-    makeinfo
-    makeinfo_html
-    opencl_d3d11
-    opencl_drm_arm
-    opencl_drm_beignet
-    opencl_dxva2
-    opencl_vaapi_beignet
-    opencl_vaapi_intel_media
-    opencl_videotoolbox
-    perl
-    pod2man
-    texi2html
-    xmllint
-    zlib_gzip
-    openvino2
-"
-
-# options emitted with CONFIG_ prefix but not available on the command line
-CONFIG_EXTRA="
-    aandcttables
-    ac3dsp
-    adts_header
-    atsc_a53
-    audio_frame_queue
-    audiodsp
-    blockdsp
-    bswapdsp
-    cabac
-    cbs
-    cbs_apv
-    cbs_av1
-    cbs_h264
-    cbs_h265
-    cbs_h266
-    cbs_jpeg
-    cbs_mpeg2
-    cbs_vp8
-    cbs_vp9
-    celp_math
-    d3d12_intra_refresh
-    d3d12_motion_estimator
-    d3d12va_encode
-    d3d12va_me_precision_eighth_pixel
-    deflate_wrapper
-    dirac_parse
-    dnn
-    dovi_rpudec
-    dovi_rpuenc
-    dvprofile
-    evcparse
-    faandct
-    faanidct
-    fdctdsp
-    fmtconvert
-    frame_thread_encoder
-    g722dsp
-    golomb
-    gplv3
-    h263dsp
-    h264chroma
-    h264dsp
-    h264parse
-    h264pred
-    h264qpel
-    h264_sei
-    hevcparse
-    hevc_sei
-    hpeldsp
-    huffman
-    huffyuvdsp
-    huffyuvencdsp
-    iamfdec
-    iamfenc
-    idctdsp
-    inflate_wrapper
-    intrax8
-    iso_media
-    iso_writer
-    ividsp
-    jpegtables
-    lgplv3
-    libx262
-    libx264_hdr10
-    llauddsp
-    llviddsp
-    llvidencdsp
-    lpc
-    lzf
-    me_cmp
-    mpeg_er
-    mpegaudio
-    mpegaudiodsp
-    mpegaudioheader
-    mpeg4audio
-    mpegvideo
-    mpegvideodec
-    mpegvideoenc
-    mpegvideoencdsp
-    msmpeg4dec
-    msmpeg4enc
-    mss34dsp
-    pixblockdsp
-    qpeldsp
-    qsv
-    qsvdec
-    qsvenc
-    qsvvpp
-    rangecoder
-    riffdec
-    riffenc
-    rtpdec
-    rtpenc_chain
-    rv34dsp
-    scene_sad
-    sinewin
-    smpte_436m
-    snappy
-    srtp
-    startcode
-    texturedsp
-    texturedspenc
-    tpeldsp
-    vaapi_1
-    vaapi_encode
-    vulkan_1_4
-    vc1dsp
-    videodsp
-    vp3dsp
-    vp8dsp
-    vulkan_encode
-    vvc_sei
-    wma_freqs
-    wmv2dsp
-"
-
-CMDLINE_SELECT="
-    $ARCH_EXT_LIST
-    $CONFIG_LIST
-    $HAVE_LIST_CMDLINE
-    $THREADS_LIST
-    asm
-    cross_compile
-    debug
-    extra_warnings
-    logging
-    optimizations
-    response_files
-    rpath
-    stripping
-    version_tracking
-"
-
-PATHS_LIST="
-    bindir
-    datadir
-    docdir
-    incdir
-    libdir
-    mandir
-    pkgconfigdir
-    prefix
-    shlibdir
-    install_name_dir
-"
-
-CMDLINE_SET="
-    $PATHS_LIST
-    ar
-    arch
-    as
-    assert_level
-    build_suffix
-    cc
-    objcc
-    cpu
-    cross_prefix
-    custom_allocator
-    cxx
-    dep_cc
-    doxygen
-    env
-    extra_version
-    gas
-    host_cc
-    host_cflags
-    host_extralibs
-    host_ld
-    host_ldflags
-    host_os
-    ignore_tests
-    install
-    ld
-    ln_s
-    logfile
-    malloc_prefix
-    glslc
-    glslcflags
-    metalcc
-    metallib
-    nm
-    optflags
-    nvcc
-    nvccflags
-    pkg_config
-    pkg_config_flags
-    progs_suffix
-    random_seed
-    ranlib
-    samples
-    stdc
-    stdcxx
-    strip
-    sws_max_filter_size
-    sysinclude
-    sysroot
-    target_exec
-    target_os
-    target_path
-    target_samples
-    tempprefix
-    toolchain
-    valgrind
-    windres
-    x86asmexe
-"
-
-CMDLINE_APPEND="
-    extra_cflags
-    extra_cxxflags
-    extra_objcflags
-    host_cppflags
-"
-
-# code dependency declarations
-
-# architecture extensions
-
-armv5te_deps="arm"
-armv6_deps="arm"
-armv6t2_deps="arm"
-armv8_deps="aarch64"
-neon_deps_any="aarch64 arm"
-intrinsics_neon_deps="neon"
-intrinsics_sse2_deps="sse2"
-vfp_deps="arm"
-vfpv3_deps="vfp"
-setend_deps="arm"
-arm_crc_deps="aarch64"
-dotprod_deps="aarch64 neon"
-i8mm_deps="aarch64 neon"
-sve_deps="aarch64 neon"
-sve2_deps="aarch64 neon sve"
-sme_deps="aarch64 neon sve sve2"
-
-map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
-
-altivec_deps="ppc"
-dcbzl_deps="ppc"
-ldbrx_deps="ppc"
-ppc4xx_deps="ppc"
-vec_xl_deps="altivec"
-vsx_deps="altivec"
-power8_deps="vsx"
-
-rv_deps="riscv"
-rvv_deps="rv"
-rv_zicbop="riscv"
-rv_zvbb_deps="rvv"
-
-loongson2_deps="mips"
-loongson3_deps="mips"
-mmi_deps_any="loongson2 loongson3"
-lsx_deps="loongarch"
-lasx_deps="lsx"
-
-mips32r2_deps="mips"
-mips32r5_deps="mips"
-mips32r6_deps="mips"
-mips64r2_deps="mips"
-mips64r6_deps="mips"
-mipsfpu_deps="mips"
-mipsdsp_deps="mips"
-mipsdspr2_deps="mips"
-msa_deps="mipsfpu"
-
-simd128_deps="wasm"
-
-x86_64_select="i686"
-x86_64_suggest="fast_cmov"
-
-i686_deps="x86"
-mmx_deps="x86"
-mmxext_deps="mmx"
-sse_deps="mmxext"
-sse2_deps="sse"
-sse3_deps="sse2"
-ssse3_deps="sse3"
-sse4_deps="ssse3"
-sse42_deps="sse4"
-aesni_deps="sse42"
-clmul_deps="sse42"
-avx_deps="sse42"
-xop_deps="avx"
-fma3_deps="avx"
-fma4_deps="avx"
-avx2_deps="avx"
-avx512_deps="avx2"
-avx512icl_deps="avx512"
-
-mmx_external_deps="x86asm"
-mmx_inline_deps="inline_asm x86"
-mmx_suggest="mmx_external mmx_inline"
-
-for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
-    eval dep=\$${ext}_deps
-    eval ${ext}_external_deps='"${dep}_external"'
-    eval ${ext}_inline_deps='"${dep}_inline"'
-    eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
-done
-
-aligned_stack_if_any="aarch64 ppc x86"
-fast_64bit_if_any="aarch64 ia64 mips64 parisc64 ppc64 riscv64 sparc64 x86_64"
-fast_clz_if_any="aarch64 mips ppc x86"
-fast_unaligned_if_any="aarch64 ppc x86"
-simd_align_16_if_any="altivec neon sse"
-simd_align_32_if_any="avx"
-simd_align_64_if_any="avx512"
-
-# system capabilities
-linux_perf_deps="linux_perf_event_h"
-symver_if_any="symver_asm_label symver_gnu_asm"
-valgrind_backtrace_conflict="optimizations"
-valgrind_backtrace_deps="valgrind_valgrind_h"
-
-# threading support
-atomics_win32_if="MemoryBarrier"
-atomics_native_if_any="$ATOMICS_LIST"
-w32threads_deps="atomics_native"
-threads_if_any="$THREADS_LIST"
-
-# subsystems
-cbs_apv_select="cbs"
-cbs_av1_select="cbs"
-cbs_h264_select="cbs"
-cbs_h265_select="cbs"
-cbs_h266_select="cbs"
-cbs_jpeg_select="cbs"
-cbs_mpeg2_select="cbs"
-cbs_vp8_select="cbs"
-cbs_vp9_select="cbs"
-deflate_wrapper_deps="zlib"
-dirac_parse_select="golomb"
-dovi_rpudec_select="golomb"
-dovi_rpuenc_select="golomb"
-dnn_deps="avformat swscale"
-dnn_deps_any="libtensorflow libopenvino libtorch"
-error_resilience_select="me_cmp"
-evcparse_select="golomb"
-faandct_deps="faan"
-faandct_select="fdctdsp"
-faanidct_deps="faan"
-faanidct_select="idctdsp"
-h264dsp_select="startcode"
-h264parse_select="golomb"
-h264_sei_select="atsc_a53 golomb"
-hevcparse_select="golomb"
-hevc_sei_select="atsc_a53 golomb"
-iso_writer_select="golomb"
-frame_thread_encoder_deps="encoders threads"
-iamfdec_deps="iamf"
-iamfdec_select="iso_media mpeg4audio"
-iamfenc_deps="iamf"
-inflate_wrapper_deps="zlib"
-intrax8_select="blockdsp wmv2dsp"
-iso_media_select="mpeg4audio"
-me_cmp_select="idctdsp"
-mpeg_er_select="error_resilience"
-mpegaudio_select="mpegaudiodsp mpegaudioheader"
-mpegvideo_select="blockdsp hpeldsp idctdsp videodsp"
-mpegvideodec_select="h264chroma mpegvideo mpeg_er"
-mpegvideoenc_select="aandcttables fdctdsp me_cmp mpegvideo mpegvideoencdsp pixblockdsp"
-msmpeg4dec_select="h263_decoder"
-msmpeg4enc_select="h263_encoder"
-vc1dsp_select="h264chroma startcode"
-vvc_sei_select="atsc_a53 golomb"
-wmv2dsp_select="idctdsp"
-
-# decoders / encoders
-aac_decoder_select="adts_header mpeg4audio sinewin"
-aac_fixed_decoder_select="adts_header mpeg4audio"
-aac_encoder_select="audio_frame_queue lpc sinewin"
-aac_latm_decoder_select="aac_decoder aac_latm_parser"
-ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert"
-ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp"
-ac3_encoder_select="ac3dsp audiodsp me_cmp"
-ac3_fixed_encoder_select="ac3dsp audiodsp me_cmp"
-acelp_kelvin_decoder_select="audiodsp celp_math"
-adpcm_circus_decoder_deps="lgpl_gpl"
-adpcm_g722_decoder_select="g722dsp"
-adpcm_g722_encoder_select="g722dsp"
-adpcm_ima_escape_decoder_deps="lgpl_gpl"
-adpcm_ima_hvqm2_decoder_deps="lgpl_gpl"
-adpcm_ima_hvqm4_decoder_deps="lgpl_gpl"
-adpcm_ima_magix_decoder_deps="lgpl_gpl"
-adpcm_ima_pda_decoder_deps="lgpl_gpl"
-adpcm_n64_decoder_deps="lgpl_gpl"
-adpcm_psxc_decoder_deps="lgpl_gpl"
-agm_decoder_select="idctdsp"
-ahx_decoder_deps="lgpl_gpl"
-ahx_decoder_select="mpegaudio ahx_to_mp2_bsf"
-aic_decoder_select="golomb idctdsp"
-alac_encoder_select="lpc"
-als_decoder_select="bswapdsp mpeg4audio"
-amrnb_decoder_select="lsp celp_math"
-amrwb_decoder_select="lsp celp_math"
-amv_decoder_select="sp5x_decoder"
-amv_encoder_select="jpegtables mpegvideoenc"
-ape_decoder_select="bswapdsp llauddsp"
-apng_decoder_select="inflate_wrapper"
-apng_encoder_select="deflate_wrapper llvidencdsp"
-aptx_encoder_select="audio_frame_queue"
-aptx_hd_encoder_select="audio_frame_queue"
-apv_decoder_select="cbs_apv"
-asv1_decoder_select="blockdsp bswapdsp idctdsp"
-asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
-asv2_decoder_select="blockdsp bswapdsp idctdsp"
-asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
-atrac1_decoder_select="sinewin"
-atrac3p_decoder_select="sinewin"
-atrac3pal_decoder_select="sinewin"
-av1_decoder_select="atsc_a53 cbs_av1 dovi_rpudec"
-bink_decoder_select="blockdsp hpeldsp"
-binkaudio_dct_decoder_select="wma_freqs"
-binkaudio_rdft_decoder_select="wma_freqs"
-cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
-clearvideo_decoder_select="idctdsp"
-cllc_decoder_select="bswapdsp"
-comfortnoise_encoder_select="lpc"
-cook_decoder_select="audiodsp sinewin"
-cri_decoder_select="mjpeg_decoder"
-cscd_decoder_suggest="zlib"
-dds_decoder_select="texturedsp"
-dirac_decoder_select="dirac_parse dwt golomb mpegvideoencdsp qpeldsp videodsp"
-dnxhd_decoder_select="blockdsp idctdsp"
-dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp videodsp"
-dvvideo_decoder_select="dvprofile idctdsp"
-dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
-dxa_decoder_deps="zlib"
-dxv_decoder_select="lzf texturedsp"
-dxv_encoder_select="texturedspenc"
-eac3_decoder_select="ac3_decoder"
-eac3_encoder_select="ac3_encoder"
-eamad_decoder_select="aandcttables blockdsp bswapdsp"
-eatgq_decoder_select="aandcttables"
-eatqi_decoder_select="aandcttables blockdsp bswapdsp"
-exr_decoder_deps="zlib"
-exr_decoder_select="bswapdsp"
-exr_encoder_deps="zlib"
-ffv1_decoder_select="rangecoder"
-ffv1_encoder_select="rangecoder"
-ffv1_vulkan_encoder_select="vulkan spirv_compiler"
-ffvhuff_decoder_select="huffyuv_decoder"
-ffvhuff_encoder_select="huffyuv_encoder"
-fic_decoder_select="golomb"
-flac_encoder_select="bswapdsp lpc"
-flashsv2_decoder_select="inflate_wrapper"
-flashsv2_encoder_select="deflate_wrapper"
-flashsv_decoder_select="inflate_wrapper"
-flashsv_encoder_deps="zlib"
-flv_decoder_select="h263_decoder"
-flv_encoder_select="h263_encoder"
-fourxm_decoder_select="blockdsp bswapdsp"
-fraps_decoder_select="bswapdsp huffman"
-ftr_decoder_select="adts_header"
-g2m_decoder_deps="zlib"
-g2m_decoder_select="blockdsp idctdsp jpegtables"
-g723_1_decoder_select="celp_math"
-g723_1_encoder_select="celp_math"
-g729_decoder_select="audiodsp celp_math"
-h261_decoder_select="mpegvideodec"
-h261_encoder_select="mpegvideoenc"
-h263_decoder_select="h263dsp mpegvideodec"
-h263_encoder_select="h263dsp mpegvideoenc"
-h263i_decoder_select="h263_decoder"
-h263p_decoder_select="h263_decoder"
-h263p_encoder_select="h263_encoder"
-h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel h264_sei videodsp"
-h264_decoder_suggest="error_resilience"
-hap_decoder_select="snappy texturedsp"
-hap_encoder_deps="libsnappy"
-hap_encoder_select="texturedspenc"
-hevc_decoder_select="bswapdsp cabac dovi_rpudec golomb hevcparse hevc_sei videodsp"
-huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
-huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
-hymt_decoder_select="huffyuv_decoder"
-iac_decoder_select="imc_decoder"
-imc_decoder_select="bswapdsp sinewin"
-imm4_decoder_select="bswapdsp idctdsp"
-imm5_decoder_select="h264_decoder hevc_decoder"
-indeo3_decoder_select="hpeldsp"
-indeo4_decoder_select="ividsp"
-indeo5_decoder_select="ividsp"
-interplay_video_decoder_select="hpeldsp"
-ipu_decoder_select="mpegvideodec"
-jpegls_decoder_select="mjpeg_decoder"
-jv_decoder_select="blockdsp"
-lagarith_decoder_select="llviddsp"
-lead_decoder_select="blockdsp idctdsp jpegtables"
-ljpeg_encoder_select="jpegtables"
-lscr_decoder_select="inflate_wrapper"
-magicyuv_decoder_select="llviddsp"
-magicyuv_encoder_select="llvidencdsp"
-mdec_decoder_select="blockdsp bswapdsp idctdsp"
-media100_decoder_select="media100_to_mjpegb_bsf mjpegb_decoder"
-metasound_decoder_select="lsp sinewin"
-mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
-mjpeg_decoder_select="blockdsp idctdsp jpegtables"
-mjpeg_encoder_select="jpegtables mpegvideoenc"
-mjpegb_decoder_select="hpeldsp mjpeg_decoder"
-mlp_decoder_select="mlp_parser"
-mlp_encoder_select="lpc audio_frame_queue"
-mobiclip_decoder_select="bswapdsp golomb"
-motionpixels_decoder_select="bswapdsp"
-mp1_decoder_select="mpegaudio"
-mp1float_decoder_select="mpegaudio"
-mp2_decoder_select="mpegaudio"
-mp2float_decoder_select="mpegaudio"
-mp3_decoder_select="mpegaudio"
-mp3adu_decoder_select="mpegaudio"
-mp3adufloat_decoder_select="mpegaudio"
-mp3float_decoder_select="mpegaudio"
-mp3on4_decoder_select="mpegaudio mpeg4audio"
-mp3on4float_decoder_select="mpegaudio mpeg4audio"
-mpc7_decoder_select="bswapdsp mpegaudiodsp"
-mpc8_decoder_select="mpegaudiodsp"
-mpegvideo_decoder_select="mpegvideodec"
-mpeg1video_decoder_select="mpegvideodec"
-mpeg1video_encoder_select="mpegvideoenc"
-mpeg2video_decoder_select="mpegvideodec"
-mpeg2video_encoder_select="mpegvideoenc"
-mpeg4_decoder_select="h263_decoder qpeldsp"
-mpeg4_encoder_select="h263_encoder qpeldsp"
-msa1_decoder_select="mss34dsp"
-mscc_decoder_select="inflate_wrapper"
-msmpeg4v1_decoder_select="msmpeg4dec"
-msmpeg4v2_decoder_select="msmpeg4dec"
-msmpeg4v2_encoder_select="msmpeg4enc"
-msmpeg4v3_decoder_select="msmpeg4dec"
-msmpeg4v3_encoder_select="msmpeg4enc"
-mss2_decoder_select="mpegvideodec vc1_decoder"
-mts2_decoder_select="jpegtables mss34dsp"
-mv30_decoder_select="aandcttables blockdsp"
-mvha_decoder_select="inflate_wrapper llviddsp"
-mwsc_decoder_select="inflate_wrapper"
-mxpeg_decoder_select="hpeldsp mjpeg_decoder"
-nellymoser_decoder_select="sinewin"
-nellymoser_encoder_select="audio_frame_queue sinewin"
-notchlc_decoder_select="lzf"
-nuv_decoder_select="idctdsp"
-opus_decoder_deps="swresample"
-opus_encoder_select="audio_frame_queue"
-pdv_decoder_select="inflate_wrapper"
-png_decoder_select="inflate_wrapper"
-png_encoder_select="deflate_wrapper llvidencdsp"
-prores_decoder_select="blockdsp idctdsp"
-prores_encoder_select="fdctdsp"
-prores_aw_encoder_select="fdctdsp"
-prores_ks_encoder_select="fdctdsp"
-prores_raw_decoder_select="blockdsp idctdsp"
-qcelp_decoder_select="lsp"
-qdm2_decoder_select="mpegaudiodsp"
-ra_144_decoder_select="audiodsp"
-ra_144_encoder_select="audio_frame_queue lpc audiodsp"
-ralf_decoder_select="golomb"
-rasc_decoder_select="inflate_wrapper"
-rawvideo_decoder_select="bswapdsp"
-rscc_decoder_deps="zlib"
-rtv1_decoder_select="texturedsp"
-rv10_decoder_select="h263_decoder"
-rv10_encoder_select="h263_encoder"
-rv20_decoder_select="h263_decoder"
-rv20_encoder_select="h263_encoder"
-rv30_decoder_select="golomb h264pred h264qpel mpegvideodec rv34dsp"
-rv40_decoder_select="golomb h264pred h264qpel mpegvideodec rv34dsp"
-rv60_decoder_select="videodsp golomb"
-screenpresso_decoder_deps="zlib"
-shorten_decoder_select="bswapdsp"
-sipr_decoder_select="lsp celp_math"
-smvjpeg_decoder_select="mjpeg_decoder"
-snow_decoder_select="dwt h264qpel rangecoder videodsp"
-snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoencdsp rangecoder videodsp"
-sonic_decoder_select="golomb rangecoder"
-sonic_encoder_select="golomb rangecoder"
-sonic_ls_encoder_select="golomb rangecoder"
-sp5x_decoder_select="mjpeg_decoder"
-speedhq_decoder_select="blockdsp idctdsp"
-speedhq_encoder_select="mpegvideoenc"
-srgc_decoder_select="inflate_wrapper"
-svq1_decoder_select="hpeldsp"
-svq1_encoder_select="hpeldsp me_cmp mpegvideoencdsp"
-svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
-svq3_decoder_suggest="zlib"
-tak_decoder_select="audiodsp"
-tdsc_decoder_deps="zlib"
-tdsc_decoder_select="mjpeg_decoder"
-theora_decoder_select="vp3_decoder"
-thp_decoder_select="mjpeg_decoder"
-tiff_decoder_select="mjpeg_decoder"
-tiff_decoder_suggest="zlib lzma"
-tiff_encoder_suggest="zlib"
-truehd_decoder_select="mlp_parser"
-truehd_encoder_select="lpc audio_frame_queue"
-truemotion2_decoder_select="bswapdsp"
-truespeech_decoder_select="bswapdsp"
-tscc_decoder_select="inflate_wrapper"
-twinvq_decoder_select="lsp sinewin"
-txd_decoder_select="texturedsp"
-utvideo_decoder_select="bswapdsp llviddsp"
-utvideo_encoder_select="bswapdsp huffman llvidencdsp"
-vble_decoder_select="llviddsp"
-vbn_decoder_select="texturedsp"
-vbn_encoder_select="texturedspenc"
-vmix_decoder_select="idctdsp"
-vc1_decoder_select="blockdsp h264qpel intrax8 mpegvideodec qpeldsp vc1dsp"
-vc1image_decoder_select="vc1_decoder"
-vorbis_encoder_select="audio_frame_queue"
-vp3_decoder_select="hpeldsp vp3dsp videodsp"
-vp4_decoder_select="vp3_decoder"
-vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
-vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
-vp6a_decoder_select="vp6_decoder"
-vp6f_decoder_select="vp6_decoder"
-vp7_decoder_select="h264pred videodsp vp8dsp"
-vp8_decoder_select="h264pred videodsp vp8dsp"
-vp9_decoder_select="videodsp vp9_parser cbs_vp9 vp9_superframe_split_bsf"
-vvc_decoder_select="cabac cbs_h266 golomb videodsp vvc_sei"
-wcmv_decoder_select="inflate_wrapper"
-webp_decoder_select="vp8_decoder"
-wmalossless_decoder_select="llauddsp"
-wmapro_decoder_select="sinewin wma_freqs"
-wmav1_decoder_select="sinewin wma_freqs"
-wmav1_encoder_select="sinewin wma_freqs"
-wmav2_decoder_select="sinewin wma_freqs"
-wmav2_encoder_select="sinewin wma_freqs"
-wmavoice_decoder_select="lsp sinewin"
-wmv1_decoder_select="msmpeg4dec"
-wmv1_encoder_select="msmpeg4enc"
-wmv2_decoder_select="blockdsp error_resilience idctdsp intrax8 msmpeg4dec qpeldsp videodsp wmv2dsp"
-wmv2_encoder_select="msmpeg4enc wmv2dsp"
-wmv3_decoder_select="vc1_decoder"
-wmv3image_decoder_select="wmv3_decoder"
-xma1_decoder_select="wmapro_decoder"
-xma2_decoder_select="wmapro_decoder"
-ylc_decoder_select="bswapdsp"
-zerocodec_decoder_select="inflate_wrapper"
-zlib_decoder_select="inflate_wrapper"
-zlib_encoder_select="deflate_wrapper"
-zmbv_decoder_select="inflate_wrapper"
-zmbv_encoder_select="deflate_wrapper"
-
-# hardware accelerators
-cuda_deps="ffnvcodec"
-cuvid_deps="ffnvcodec"
-d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
-d3d12va_deps="dxva_h ID3D12Device ID3D12VideoDecoder"
-dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
-ffnvcodec_deps_any="libdl LoadLibrary"
-mediacodec_deps="android mediandk pthreads"
-nvdec_deps="ffnvcodec"
-vaapi_x11_deps="xlib_x11"
-videotoolbox_hwaccel_deps="videotoolbox pthreads"
-videotoolbox_hwaccel_extralibs="-framework QuartzCore"
-vulkan_deps="threads"
-vulkan_deps_any="libdl LoadLibrary"
-
-av1_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_AV1"
-av1_d3d11va_hwaccel_select="av1_decoder"
-av1_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_AV1"
-av1_d3d11va2_hwaccel_select="av1_decoder"
-av1_d3d12va_hwaccel_deps="d3d12va DXVA_PicParams_AV1"
-av1_d3d12va_hwaccel_select="av1_decoder"
-av1_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_AV1"
-av1_dxva2_hwaccel_select="av1_decoder"
-av1_nvdec_hwaccel_deps="nvdec CUVIDAV1PICPARAMS"
-av1_nvdec_hwaccel_select="av1_decoder"
-av1_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferAV1_bit_depth_idx"
-av1_vaapi_hwaccel_select="av1_decoder"
-av1_vdpau_hwaccel_deps="vdpau VdpPictureInfoAV1"
-av1_vdpau_hwaccel_select="av1_decoder"
-av1_videotoolbox_hwaccel_deps="videotoolbox"
-av1_videotoolbox_hwaccel_select="av1_decoder"
-av1_vulkan_hwaccel_deps="vulkan"
-av1_vulkan_hwaccel_select="av1_decoder"
-dpx_vulkan_hwaccel_deps="vulkan spirv_compiler"
-dpx_vulkan_hwaccel_select="dpx_decoder"
-ffv1_vulkan_hwaccel_deps="vulkan spirv_compiler"
-ffv1_vulkan_hwaccel_select="ffv1_decoder"
-h263_vaapi_hwaccel_deps="vaapi"
-h263_vaapi_hwaccel_select="h263_decoder"
-h263_videotoolbox_hwaccel_deps="videotoolbox"
-h263_videotoolbox_hwaccel_select="h263_decoder"
-h264_d3d11va_hwaccel_deps="d3d11va"
-h264_d3d11va_hwaccel_select="h264_decoder"
-h264_d3d11va2_hwaccel_deps="d3d11va"
-h264_d3d11va2_hwaccel_select="h264_decoder"
-h264_d3d12va_hwaccel_deps="d3d12va"
-h264_d3d12va_hwaccel_select="h264_decoder"
-h264_dxva2_hwaccel_deps="dxva2"
-h264_dxva2_hwaccel_select="h264_decoder"
-h264_nvdec_hwaccel_deps="nvdec"
-h264_nvdec_hwaccel_select="h264_decoder"
-h264_vaapi_hwaccel_deps="vaapi"
-h264_vaapi_hwaccel_select="h264_decoder"
-h264_vdpau_hwaccel_deps="vdpau"
-h264_vdpau_hwaccel_select="h264_decoder"
-h264_videotoolbox_hwaccel_deps="videotoolbox"
-h264_videotoolbox_hwaccel_select="h264_decoder"
-h264_vulkan_hwaccel_deps="vulkan"
-h264_vulkan_hwaccel_select="h264_decoder"
-hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
-hevc_d3d11va_hwaccel_select="hevc_decoder"
-hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
-hevc_d3d11va2_hwaccel_select="hevc_decoder"
-hevc_d3d12va_hwaccel_deps="d3d12va DXVA_PicParams_HEVC"
-hevc_d3d12va_hwaccel_select="hevc_decoder"
-hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
-hevc_dxva2_hwaccel_select="hevc_decoder"
-hevc_nvdec_hwaccel_deps="nvdec"
-hevc_nvdec_hwaccel_select="hevc_decoder"
-hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
-hevc_vaapi_hwaccel_select="hevc_decoder"
-hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
-hevc_vdpau_hwaccel_select="hevc_decoder"
-hevc_videotoolbox_hwaccel_deps="videotoolbox"
-hevc_videotoolbox_hwaccel_select="hevc_decoder"
-hevc_vulkan_hwaccel_deps="vulkan"
-hevc_vulkan_hwaccel_select="hevc_decoder"
-mjpeg_nvdec_hwaccel_deps="nvdec"
-mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
-mjpeg_vaapi_hwaccel_deps="vaapi"
-mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
-mpeg1_nvdec_hwaccel_deps="nvdec"
-mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
-mpeg1_vdpau_hwaccel_deps="vdpau"
-mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
-mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
-mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
-mpeg2_d3d11va_hwaccel_deps="d3d11va"
-mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
-mpeg2_d3d11va2_hwaccel_deps="d3d11va"
-mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
-mpeg2_d3d12va_hwaccel_deps="d3d12va"
-mpeg2_d3d12va_hwaccel_select="mpeg2video_decoder"
-mpeg2_dxva2_hwaccel_deps="dxva2"
-mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
-mpeg2_nvdec_hwaccel_deps="nvdec"
-mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
-mpeg2_vaapi_hwaccel_deps="vaapi"
-mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
-mpeg2_vdpau_hwaccel_deps="vdpau"
-mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
-mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
-mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
-mpeg4_nvdec_hwaccel_deps="nvdec"
-mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
-mpeg4_vaapi_hwaccel_deps="vaapi"
-mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
-mpeg4_vdpau_hwaccel_deps="vdpau"
-mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
-mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
-mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
-prores_videotoolbox_hwaccel_deps="videotoolbox"
-prores_videotoolbox_hwaccel_select="prores_decoder"
-prores_raw_vulkan_hwaccel_deps="vulkan spirv_compiler"
-prores_raw_vulkan_hwaccel_select="prores_raw_decoder"
-prores_vulkan_hwaccel_deps="vulkan spirv_compiler"
-prores_vulkan_hwaccel_select="prores_decoder"
-vc1_d3d11va_hwaccel_deps="d3d11va"
-vc1_d3d11va_hwaccel_select="vc1_decoder"
-vc1_d3d11va2_hwaccel_deps="d3d11va"
-vc1_d3d11va2_hwaccel_select="vc1_decoder"
-vc1_d3d12va_hwaccel_deps="d3d12va"
-vc1_d3d12va_hwaccel_select="vc1_decoder"
-vc1_dxva2_hwaccel_deps="dxva2"
-vc1_dxva2_hwaccel_select="vc1_decoder"
-vc1_nvdec_hwaccel_deps="nvdec"
-vc1_nvdec_hwaccel_select="vc1_decoder"
-vc1_vaapi_hwaccel_deps="vaapi"
-vc1_vaapi_hwaccel_select="vc1_decoder"
-vc1_vdpau_hwaccel_deps="vdpau"
-vc1_vdpau_hwaccel_select="vc1_decoder"
-vp8_nvdec_hwaccel_deps="nvdec"
-vp8_nvdec_hwaccel_select="vp8_decoder"
-vp8_vaapi_hwaccel_deps="vaapi"
-vp8_vaapi_hwaccel_select="vp8_decoder"
-vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
-vp9_d3d11va_hwaccel_select="vp9_decoder"
-vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
-vp9_d3d11va2_hwaccel_select="vp9_decoder"
-vp9_d3d12va_hwaccel_deps="d3d12va DXVA_PicParams_VP9"
-vp9_d3d12va_hwaccel_select="vp9_decoder"
-vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
-vp9_dxva2_hwaccel_select="vp9_decoder"
-vp9_nvdec_hwaccel_deps="nvdec"
-vp9_nvdec_hwaccel_select="vp9_decoder"
-vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
-vp9_vaapi_hwaccel_select="vp9_decoder"
-vp9_vdpau_hwaccel_deps="vdpau VdpPictureInfoVP9"
-vp9_vdpau_hwaccel_select="vp9_decoder"
-vp9_videotoolbox_hwaccel_deps="videotoolbox"
-vp9_videotoolbox_hwaccel_select="vp9_decoder"
-vp9_vulkan_hwaccel_deps="vulkan vulkan_1_4"
-vp9_vulkan_hwaccel_select="vp9_decoder"
-vvc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVVC"
-vvc_vaapi_hwaccel_select="vvc_decoder"
-wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
-wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
-wmv3_d3d12va_hwaccel_select="vc1_d3d12va_hwaccel"
-wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
-wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
-wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
-wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
-
-# hardware-accelerated codecs
-d3d12va_encode_deps="d3d12va ID3D12VideoEncoder d3d12_encoder_feature"
-mediafoundation_deps="mftransform_h MFCreateAlignedMemoryBuffer"
-omx_deps="libdl pthreads"
-omx_rpi_select="omx"
-qsv_deps="libmfx"
-qsvdec_select="qsv"
-qsvenc_select="qsv"
-qsvvpp_select="qsv"
-vaapi_encode_deps="vaapi"
-vulkan_1_4_deps="vulkan"
-vulkan_encode_deps="vulkan"
-v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
-
-bilateral_cuda_filter_deps="ffnvcodec"
-bilateral_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
-chromakey_cuda_filter_deps="ffnvcodec"
-chromakey_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
-colorspace_cuda_filter_deps="ffnvcodec"
-colorspace_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
-hwupload_cuda_filter_deps="ffnvcodec"
-scale_npp_filter_deps="ffnvcodec libnpp"
-scale2ref_npp_filter_deps="ffnvcodec libnpp"
-scale_cuda_filter_deps="ffnvcodec"
-scale_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
-thumbnail_cuda_filter_deps="ffnvcodec"
-thumbnail_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
-transpose_npp_filter_deps="ffnvcodec libnpp"
-overlay_cuda_filter_deps="ffnvcodec"
-overlay_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
-pad_cuda_filter_deps="ffnvcodec"
-pad_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
-sharpen_npp_filter_deps="ffnvcodec libnpp"
-
-ddagrab_filter_deps="d3d11va IDXGIOutput1 DXGI_OUTDUPL_FRAME_INFO"
-gfxcapture_filter_deps="cxx17 threads d3d11va IGraphicsCaptureItemInterop __x_ABI_CWindows_CGraphics_CCapture_CIGraphicsCaptureSession3"
-gfxcapture_filter_extralibs="-lstdc++"
-scale_d3d11_filter_deps="d3d11va"
-scale_d3d12_filter_deps="d3d12va ID3D12VideoProcessor"
-mestimate_d3d12_filter_deps="d3d12va ID3D12VideoMotionEstimator d3d12_motion_estimator"
-
-amf_deps_any="libdl LoadLibrary"
-nvenc_deps="ffnvcodec"
-nvenc_deps_any="libdl LoadLibrary"
-
-aac_mediacodec_decoder_deps="mediacodec"
-aac_mediacodec_decoder_select="aac_adtstoasc_bsf aac_parser"
-aac_mf_encoder_deps="mediafoundation"
-ac3_mf_encoder_deps="mediafoundation"
-amrnb_mediacodec_decoder_deps="mediacodec"
-amrnb_mediacodec_decoder_select="amr_parser"
-amrwb_mediacodec_decoder_deps="mediacodec"
-amrwb_mediacodec_decoder_select="amr_parser"
-av1_amf_encoder_deps="amf"
-av1_amf_decoder_deps="amf"
-av1_cuvid_decoder_deps="cuvid CUVIDAV1PICPARAMS"
-av1_d3d12va_encoder_deps="d3d12va d3d12va_av1_headers"
-av1_d3d12va_encoder_select="cbs_av1 d3d12va_encode"
-av1_mediacodec_decoder_deps="mediacodec"
-av1_mediacodec_encoder_deps="mediacodec"
-av1_mediacodec_encoder_select="extract_extradata_bsf"
-av1_mf_encoder_deps="mediafoundation"
-av1_nvenc_encoder_deps="nvenc NV_ENC_PIC_PARAMS_AV1"
-av1_nvenc_encoder_select="atsc_a53"
-av1_qsv_decoder_select="qsvdec"
-av1_qsv_encoder_deps="libvpl"
-av1_qsv_encoder_select="qsvenc"
-av1_vaapi_encoder_deps="VAEncPictureParameterBufferAV1"
-av1_vaapi_encoder_select="cbs_av1 vaapi_encode"
-av1_vulkan_encoder_deps="vulkan_1_4"
-av1_vulkan_encoder_select="cbs_av1 vulkan_encode"
-h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
-h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
-h264_amf_encoder_deps="amf"
-h264_amf_decoder_deps="amf"
-h264_cuvid_decoder_deps="cuvid"
-h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
-h264_d3d12va_encoder_select="cbs_h264 d3d12va_encode"
-h264_mediacodec_decoder_deps="mediacodec"
-h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
-h264_mediacodec_encoder_deps="mediacodec"
-h264_mediacodec_encoder_select="extract_extradata_bsf h264_metadata"
-h264_mf_encoder_deps="mediafoundation"
-h264_mmal_decoder_deps="mmal"
-h264_nvenc_encoder_deps="nvenc"
-h264_nvenc_encoder_select="atsc_a53"
-h264_oh_decoder_deps="ohcodec"
-h264_oh_decoder_select="h264_mp4toannexb_bsf"
-h264_oh_encoder_deps="ohcodec"
-h264_omx_encoder_deps="omx"
-h264_qsv_decoder_select="h264_mp4toannexb_bsf qsvdec"
-h264_qsv_encoder_select="atsc_a53 qsvenc"
-h264_rkmpp_decoder_deps="rkmpp"
-h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
-h264_rkmpp_encoder_deps="rkmpp"
-h264_vaapi_encoder_select="atsc_a53 cbs_h264 vaapi_encode"
-h264_vulkan_encoder_select="atsc_a53 cbs_h264 vulkan_encode"
-h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
-h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
-h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
-hevc_amf_encoder_deps="amf"
-hevc_amf_decoder_deps="amf"
-hevc_cuvid_decoder_deps="cuvid"
-hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
-hevc_d3d12va_encoder_select="cbs_h265 d3d12va_encode"
-hevc_mediacodec_decoder_deps="mediacodec"
-hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
-hevc_mediacodec_encoder_deps="mediacodec"
-hevc_mediacodec_encoder_select="extract_extradata_bsf hevc_metadata"
-hevc_mf_encoder_deps="mediafoundation"
-hevc_nvenc_encoder_deps="nvenc"
-hevc_nvenc_encoder_select="atsc_a53"
-hevc_oh_decoder_deps="ohcodec"
-hevc_oh_decoder_select="hevc_mp4toannexb_bsf"
-hevc_oh_encoder_deps="ohcodec"
-hevc_qsv_decoder_select="hevc_mp4toannexb_bsf qsvdec"
-hevc_qsv_encoder_select="hevcparse qsvenc"
-hevc_rkmpp_decoder_deps="rkmpp"
-hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
-hevc_rkmpp_encoder_deps="rkmpp"
-hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
-hevc_vaapi_encoder_select="atsc_a53 cbs_h265 vaapi_encode"
-hevc_vulkan_encoder_select="atsc_a53 cbs_h265 vulkan_encode"
-hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
-hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
-hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
-mjpeg_cuvid_decoder_deps="cuvid"
-mjpeg_qsv_decoder_select="qsvdec"
-mjpeg_qsv_encoder_deps="libmfx"
-mjpeg_qsv_encoder_select="qsvenc"
-mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
-mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
-mp3_mf_encoder_deps="mediafoundation"
-mp3_mediacodec_decoder_deps="mediacodec"
-mp3_mediacodec_decoder_select="mpegaudioheader"
-mpeg1_cuvid_decoder_deps="cuvid"
-mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
-mpeg2_cuvid_decoder_deps="cuvid"
-mpeg2_mmal_decoder_deps="mmal"
-mpeg2_mediacodec_decoder_deps="mediacodec"
-mpeg2_qsv_decoder_select="qsvdec"
-mpeg2_qsv_encoder_select="qsvenc"
-mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
-mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
-mpeg4_cuvid_decoder_deps="cuvid"
-mpeg4_mediacodec_decoder_deps="mediacodec"
-mpeg4_mediacodec_encoder_deps="mediacodec"
-mpeg4_mediacodec_encoder_select="extract_extradata_bsf"
-mpeg4_mmal_decoder_deps="mmal"
-mpeg4_omx_encoder_deps="omx"
-mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
-mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
-vc1_cuvid_decoder_deps="cuvid"
-vc1_mmal_decoder_deps="mmal"
-vc1_qsv_decoder_select="qsvdec"
-vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
-vp8_cuvid_decoder_deps="cuvid"
-vp8_mediacodec_decoder_deps="mediacodec"
-vp8_mediacodec_encoder_deps="mediacodec"
-vp8_qsv_decoder_select="qsvdec"
-vp8_rkmpp_decoder_deps="rkmpp"
-vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
-vp8_vaapi_encoder_select="vaapi_encode"
-vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
-vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
-vp9_amf_decoder_deps="amf"
-vp9_cuvid_decoder_deps="cuvid"
-vp9_mediacodec_decoder_deps="mediacodec"
-vp9_mediacodec_encoder_deps="mediacodec"
-vp9_qsv_decoder_select="qsvdec"
-vp9_rkmpp_decoder_deps="rkmpp"
-vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
-vp9_vaapi_encoder_select="vaapi_encode"
-vp9_qsv_encoder_deps="libmfx MFX_CODEC_VP9"
-vp9_qsv_encoder_select="qsvenc"
-vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
-amf_capture_filter_deps="amf"
-vvc_qsv_decoder_select="vvc_mp4toannexb_bsf qsvdec"
-
-# parsers
-aac_parser_select="adts_header mpeg4audio"
-ahx_parser_deps="lgpl_gpl"
-apv_parser_select="cbs_apv"
-av1_parser_select="cbs_av1"
-evc_parser_select="evcparse"
-ffv1_parser_select="rangecoder"
-ftr_parser_select="adts_header mpeg4audio"
-h264_parser_select="golomb h264dsp h264parse h264_sei"
-hevc_parser_select="hevcparse hevc_sei"
-mpegaudio_parser_select="mpegaudioheader"
-mpeg4video_parser_select="mpegvideodec"
-vc1_parser_select="vc1dsp"
-vvc_parser_select="cbs_h266"
-
-# bitstream_filters
-aac_adtstoasc_bsf_select="adts_header mpeg4audio"
-ahx_to_mp2_bsf_deps="lgpl_gpl"
-av1_frame_merge_bsf_select="cbs_av1"
-av1_frame_split_bsf_select="cbs_av1"
-av1_metadata_bsf_select="cbs_av1"
-dovi_rpu_bsf_select="cbs_h265 cbs_av1 dovi_rpudec dovi_rpuenc"
-dts2pts_bsf_select="cbs_h264 h264parse cbs_h265 hevc_parser"
-eac3_core_bsf_select="ac3_parser"
-eia608_to_smpte436m_bsf_select="smpte_436m"
-evc_frame_merge_bsf_select="evcparse"
-filter_units_bsf_select="cbs"
-h264_metadata_bsf_deps="const_nan"
-h264_metadata_bsf_select="cbs_h264"
-h264_redundant_pps_bsf_select="cbs_h264"
-hevc_metadata_bsf_select="cbs_h265"
-mjpeg2jpeg_bsf_select="jpegtables"
-mpeg2_metadata_bsf_select="cbs_mpeg2"
-smpte436m_to_eia608_bsf_select="smpte_436m"
-trace_headers_bsf_select="cbs cbs_vp8"
-vp9_metadata_bsf_select="cbs_vp9"
-vvc_metadata_bsf_select="cbs_h266"
-
-# external libraries
-aac_at_decoder_deps="audiotoolbox"
-aac_at_decoder_select="aac_adtstoasc_bsf"
-ac3_at_decoder_deps="audiotoolbox"
-ac3_at_decoder_select="ac3_parser"
-adpcm_ima_qt_at_decoder_deps="audiotoolbox"
-alac_at_decoder_deps="audiotoolbox"
-amr_nb_at_decoder_deps="audiotoolbox"
-avisynth_deps_any="libdl LoadLibrary"
-avisynth_demuxer_deps="avisynth"
-avisynth_demuxer_select="riffdec"
-eac3_at_decoder_deps="audiotoolbox"
-eac3_at_decoder_select="ac3_parser"
-gsm_ms_at_decoder_deps="audiotoolbox"
-ilbc_at_decoder_deps="audiotoolbox"
-mp1_at_decoder_deps="audiotoolbox"
-mp2_at_decoder_deps="audiotoolbox"
-mp3_at_decoder_deps="audiotoolbox"
-mp1_at_decoder_select="mpegaudioheader"
-mp2_at_decoder_select="mpegaudioheader"
-mp3_at_decoder_select="mpegaudioheader"
-pcm_alaw_at_decoder_deps="audiotoolbox"
-pcm_mulaw_at_decoder_deps="audiotoolbox"
-qdmc_at_decoder_deps="audiotoolbox"
-qdm2_at_decoder_deps="audiotoolbox"
-aac_at_encoder_deps="audiotoolbox"
-aac_at_encoder_select="audio_frame_queue"
-alac_at_encoder_deps="audiotoolbox"
-alac_at_encoder_select="audio_frame_queue"
-ilbc_at_encoder_deps="audiotoolbox"
-ilbc_at_encoder_select="audio_frame_queue"
-pcm_alaw_at_encoder_deps="audiotoolbox"
-pcm_alaw_at_encoder_select="audio_frame_queue"
-pcm_mulaw_at_encoder_deps="audiotoolbox"
-pcm_mulaw_at_encoder_select="audio_frame_queue"
-chromaprint_muxer_deps="chromaprint"
-h264_videotoolbox_encoder_deps="pthreads"
-h264_videotoolbox_encoder_select="atsc_a53 videotoolbox_encoder"
-hevc_videotoolbox_encoder_deps="pthreads"
-hevc_videotoolbox_encoder_select="atsc_a53 videotoolbox_encoder"
-prores_videotoolbox_encoder_deps="pthreads"
-prores_videotoolbox_encoder_select="videotoolbox_encoder"
-libaom_av1_decoder_deps="libaom"
-libaom_av1_encoder_deps="libaom"
-libaom_av1_encoder_select="extract_extradata_bsf dovi_rpuenc"
-libaribb24_decoder_deps="libaribb24"
-libaribcaption_decoder_deps="libaribcaption"
-libcelt_decoder_deps="libcelt"
-libcodec2_decoder_deps="libcodec2"
-libcodec2_encoder_deps="libcodec2"
-libdav1d_decoder_deps="libdav1d"
-libdav1d_decoder_select="atsc_a53 dovi_rpudec"
-libdavs2_decoder_deps="libdavs2"
-libdavs2_decoder_select="avs2_parser"
-libfdk_aac_decoder_deps="libfdk_aac"
-libfdk_aac_encoder_deps="libfdk_aac"
-libfdk_aac_encoder_select="audio_frame_queue"
-libgme_demuxer_deps="libgme"
-libgsm_decoder_deps="libgsm"
-libgsm_encoder_deps="libgsm"
-libgsm_ms_decoder_deps="libgsm"
-libgsm_ms_encoder_deps="libgsm"
-libilbc_decoder_deps="libilbc"
-libilbc_encoder_deps="libilbc"
-libjxl_anim_decoder_deps="libjxl libjxl_threads"
-libjxl_anim_encoder_deps="libjxl libjxl_threads"
-libjxl_decoder_deps="libjxl libjxl_threads"
-libjxl_encoder_deps="libjxl libjxl_threads"
-libkvazaar_encoder_deps="libkvazaar"
-liblc3_decoder_deps="liblc3"
-liblc3_encoder_deps="liblc3"
-liblc3_encoder_select="audio_frame_queue"
-libmodplug_demuxer_deps="libmodplug"
-libmp3lame_encoder_deps="libmp3lame"
-libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
-libmpeghdec_decoder_deps="libmpeghdec"
-liboapv_encoder_deps="liboapv"
-libopencore_amrnb_decoder_deps="libopencore_amrnb"
-libopencore_amrnb_encoder_deps="libopencore_amrnb"
-libopencore_amrnb_encoder_select="audio_frame_queue"
-libopencore_amrwb_decoder_deps="libopencore_amrwb"
-libopenh264_decoder_deps="libopenh264"
-libopenh264_decoder_select="h264_mp4toannexb_bsf"
-libopenh264_encoder_deps="libopenh264"
-libopenjpeg_encoder_deps="libopenjpeg"
-libopenmpt_demuxer_deps="libopenmpt"
-libopus_decoder_deps="libopus"
-libopus_encoder_deps="libopus"
-libopus_encoder_select="audio_frame_queue"
-librav1e_encoder_deps="librav1e"
-librsvg_decoder_deps="librsvg"
-libshine_encoder_deps="libshine"
-libshine_encoder_select="audio_frame_queue mpegaudioheader"
-libspeex_decoder_deps="libspeex"
-libspeex_encoder_deps="libspeex"
-libspeex_encoder_select="audio_frame_queue"
-libsvtav1_encoder_deps="libsvtav1"
-libsvtjpegxs_encoder_deps="libsvtjpegxs"
-libsvtjpegxs_decoder_deps="libsvtjpegxs"
-libsvtav1_encoder_select="dovi_rpuenc"
-libtheora_encoder_deps="libtheora"
-libtwolame_encoder_deps="libtwolame"
-libuavs3d_decoder_deps="libuavs3d"
-libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
-libvorbis_decoder_deps="libvorbis"
-libvorbis_encoder_deps="libvorbis libvorbisenc"
-libvorbis_encoder_select="audio_frame_queue"
-libvpx_vp8_decoder_deps="libvpx"
-libvpx_vp8_encoder_deps="libvpx"
-libvpx_vp9_decoder_deps="libvpx"
-libvpx_vp9_encoder_deps="libvpx"
-libvvenc_encoder_deps="libvvenc"
-libwebp_encoder_deps="libwebp"
-libwebp_anim_encoder_deps="libwebp"
-libx262_encoder_deps="libx262"
-libx264_encoder_deps="libx264"
-libx264_encoder_select="atsc_a53 golomb"
-libx264rgb_encoder_deps="libx264"
-libx264rgb_encoder_select="libx264_encoder"
-libx265_encoder_deps="libx265"
-libx265_encoder_select="atsc_a53 dovi_rpuenc"
-libxavs_encoder_deps="libxavs"
-libxavs2_encoder_deps="libxavs2"
-libxevd_decoder_deps_any="libxevd libxevdb"
-libxeve_encoder_deps_any="libxeve libxeveb"
-libxvid_encoder_deps="libxvid"
-libzvbi_teletext_decoder_deps="libzvbi"
-vapoursynth_demuxer_deps="vapoursynth"
-videotoolbox_suggest="coreservices"
-videotoolbox_deps="corefoundation coremedia corevideo VTDecompressionSessionDecodeFrame"
-videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
-
-# demuxers / muxers
-ac3_demuxer_select="ac3_parser"
-act_demuxer_select="riffdec"
-adts_muxer_select="mpeg4audio"
-aiff_muxer_select="iso_media"
-amv_muxer_select="riffenc"
-apv_demuxer_select="apv_parser"
-asf_demuxer_select="riffdec"
-asf_o_demuxer_select="riffdec"
-asf_muxer_select="riffenc"
-asf_stream_muxer_select="asf_muxer"
-av1_demuxer_select="av1_frame_merge_bsf av1_parser"
-avi_demuxer_select="riffdec"
-avi_muxer_select="riffenc"
-avif_muxer_select="mov_muxer"
-caf_demuxer_select="iso_media"
-caf_muxer_select="iso_media"
-dash_muxer_select="mp4_muxer"
-dash_demuxer_deps="libxml2"
-daud_muxer_select="pcm_rechunk_bsf"
-dirac_demuxer_select="dirac_parser"
-dts_demuxer_select="dca_parser"
-dtshd_demuxer_select="dca_parser"
-dv_demuxer_select="dvprofile"
-dv_muxer_select="dvprofile"
-dvdvideo_demuxer_select="mpegps_demuxer"
-dvdvideo_demuxer_deps="libdvdnav libdvdread"
-dxa_demuxer_select="riffdec"
-eac3_demuxer_select="ac3_parser"
-evc_demuxer_select="evc_frame_merge_bsf evc_parser"
-f4v_muxer_select="mov_muxer"
-fifo_muxer_deps="threads"
-flac_demuxer_select="flac_parser"
-flv_muxer_select="aac_adtstoasc_bsf iso_writer"
-gxf_muxer_select="pcm_rechunk_bsf"
-hds_muxer_select="flv_muxer"
-hls_demuxer_select="aac_demuxer ac3_demuxer adts_header ac3_parser eac3_demuxer mov_demuxer mpegts_demuxer"
-hls_muxer_select="mov_muxer mpegts_muxer webvtt_muxer"
-hxvs_demuxer_select="h264_parser hevc_parser"
-iamf_demuxer_select="iamfdec"
-iamf_muxer_select="iamfenc"
-image2_alias_pix_demuxer_select="image2_demuxer"
-image2_brender_pix_demuxer_select="image2_demuxer"
-imf_demuxer_deps="libxml2"
-imf_demuxer_select="mxf_demuxer"
-ipod_muxer_select="mov_muxer"
-ismv_muxer_select="mov_muxer"
-ivf_muxer_select="av1_metadata_bsf vp9_superframe_bsf"
-latm_muxer_select="aac_adtstoasc_bsf mpeg4audio"
-matroska_audio_muxer_select="matroska_muxer"
-matroska_demuxer_select="riffdec"
-matroska_demuxer_suggest="bzlib zlib"
-matroska_muxer_select="iso_writer mpeg4audio riffenc aac_adtstoasc_bsf pgs_frame_merge_bsf vp9_superframe_bsf"
-mcc_demuxer_select="smpte_436m"
-mcc_muxer_select="smpte_436m"
-mcc_muxer_suggest="eia608_to_smpte436m_bsf"
-mlp_demuxer_select="mlp_parser"
-mmf_muxer_select="riffenc"
-mov_demuxer_select="iso_media riffdec"
-mov_demuxer_suggest="iamfdec zlib"
-mov_muxer_select="iso_media iso_writer riffenc rtpenc_chain vp9_superframe_bsf aac_adtstoasc_bsf ac3_parser"
-mov_muxer_suggest="iamfenc"
-mp3_demuxer_select="mpegaudio_parser"
-mp3_muxer_select="mpegaudioheader"
-mp4_muxer_select="mov_muxer"
-mpegts_demuxer_select="iso_media"
-mpegts_muxer_select="ac3_parser adts_muxer latm_muxer h264_mp4toannexb_bsf hevc_mp4toannexb_bsf vvc_mp4toannexb_bsf"
-mpegtsraw_demuxer_select="mpegts_demuxer"
-mxf_muxer_select="iso_writer pcm_rechunk_bsf rangecoder"
-mxf_muxer_suggest="eia608_to_smpte436m_bsf"
-mxf_d10_muxer_select="mxf_muxer"
-mxf_opatom_muxer_select="mxf_muxer"
-nut_muxer_select="riffenc"
-nuv_demuxer_select="riffdec"
-obu_demuxer_select="av1_frame_merge_bsf av1_parser"
-obu_muxer_select="av1_metadata_bsf"
-oga_muxer_select="ogg_muxer"
-ogg_demuxer_select="dirac_parse"
-ogv_muxer_select="ogg_muxer"
-opus_muxer_select="ogg_muxer"
-psp_muxer_select="mov_muxer"
-rtp_demuxer_select="sdp_demuxer"
-rtp_muxer_select="iso_writer"
-rtp_mpegts_muxer_select="mpegts_muxer rtp_muxer"
-rtpdec_select="asf_demuxer mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
-rtsp_demuxer_select="http_protocol rtpdec"
-rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
-sap_demuxer_select="sdp_demuxer"
-sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
-sdp_demuxer_select="rtpdec"
-smoothstreaming_muxer_select="ismv_muxer"
-spdif_demuxer_select="adts_header"
-spdif_muxer_select="adts_header"
-spx_muxer_select="ogg_muxer"
-swf_demuxer_suggest="zlib"
-tak_demuxer_select="tak_parser"
-tee_muxer_select="fifo_muxer"
-truehd_demuxer_select="mlp_parser"
-tg2_muxer_select="mov_muxer"
-tgp_muxer_select="mov_muxer"
-vobsub_demuxer_select="mpegps_demuxer"
-w64_demuxer_select="wav_demuxer"
-w64_muxer_select="wav_muxer"
-wav_demuxer_select="riffdec"
-wav_muxer_select="riffenc"
-webm_chunk_muxer_select="webm_muxer"
-webm_dash_manifest_demuxer_select="matroska_demuxer"
-whip_muxer_select="dtls_protocol rtp_muxer http_protocol"
-wtv_demuxer_select="mpegts_demuxer riffdec"
-wtv_muxer_select="mpegts_muxer riffenc"
-xmv_demuxer_select="riffdec"
-xwma_demuxer_select="riffdec"
-
-# indevs / outdevs
-android_camera_indev_deps="android camera2ndk mediandk pthreads"
-alsa_indev_deps="alsa"
-alsa_outdev_deps="alsa"
-avfoundation_indev_deps="avfoundation corevideo coremedia pthreads AVCaptureSession"
-avfoundation_indev_suggest="coregraphics applicationservices"
-avfoundation_indev_extralibs="-framework Foundation"
-audiotoolbox_outdev_deps="audiotoolbox pthreads AudioObjectPropertyAddress"
-audiotoolbox_outdev_extralibs="-framework AudioToolbox -framework CoreAudio"
-caca_outdev_deps="libcaca"
-decklink_deps_any="libdl LoadLibrary"
-decklink_indev_deps="decklink threads"
-decklink_indev_extralibs="-lstdc++"
-decklink_indev_suggest="libzvbi"
-decklink_outdev_deps="decklink threads"
-decklink_outdev_suggest="libklvanc"
-decklink_outdev_extralibs="-lstdc++"
-dshow_indev_deps="IBaseFilter"
-dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
-fbdev_indev_deps="linux_fb_h"
-fbdev_outdev_deps="linux_fb_h"
-gdigrab_indev_deps="CreateDIBSection"
-gdigrab_indev_extralibs="-lgdi32"
-gdigrab_indev_select="bmp_decoder"
-iec61883_indev_deps="libiec61883"
-iec61883_indev_select="dv_demuxer"
-jack_indev_deps="libjack"
-jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
-kmsgrab_indev_deps="libdrm"
-lavfi_indev_deps="avfilter"
-libcdio_indev_deps="libcdio"
-libdc1394_indev_deps="libdc1394"
-openal_indev_deps="openal"
-oss_indev_deps_any="sys_soundcard_h"
-oss_outdev_deps_any="sys_soundcard_h"
-pulse_indev_deps="libpulse"
-pulse_outdev_deps="libpulse"
-sndio_indev_deps="sndio"
-sndio_outdev_deps="sndio"
-v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
-v4l2_indev_suggest="libv4l2"
-v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
-v4l2_outdev_suggest="libv4l2"
-vfwcap_indev_deps="vfw32 vfwcap_defines"
-xcbgrab_indev_deps="libxcb"
-xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
-xv_outdev_deps="xlib_xv xlib_x11 xlib_xext"
-
-# protocols
-android_content_protocol_deps="jni"
-android_content_protocol_select="file_protocol"
-async_protocol_deps="threads"
-bluray_protocol_deps="libbluray"
-ffrtmpcrypt_protocol_conflict="librtmp_protocol"
-ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
-ffrtmpcrypt_protocol_select="tcp_protocol"
-ffrtmphttp_protocol_conflict="librtmp_protocol"
-ffrtmphttp_protocol_select="http_protocol"
-ftp_protocol_select="tcp_protocol"
-gopher_protocol_select="tcp_protocol"
-gophers_protocol_select="tls_protocol"
-http_protocol_select="tcp_protocol"
-http_protocol_suggest="zlib"
-httpproxy_protocol_select="tcp_protocol"
-httpproxy_protocol_suggest="zlib"
-https_protocol_select="tls_protocol"
-https_protocol_suggest="zlib"
-icecast_protocol_select="http_protocol"
-mmsh_protocol_select="http_protocol"
-mmst_protocol_select="network"
-rtmp_protocol_conflict="librtmp_protocol"
-rtmp_protocol_select="tcp_protocol"
-rtmp_protocol_suggest="zlib"
-rtmpe_protocol_select="ffrtmpcrypt_protocol"
-rtmpe_protocol_suggest="zlib"
-rtmps_protocol_conflict="librtmp_protocol"
-rtmps_protocol_select="tls_protocol"
-rtmps_protocol_suggest="zlib"
-rtmpt_protocol_select="ffrtmphttp_protocol"
-rtmpt_protocol_suggest="zlib"
-rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
-rtmpte_protocol_suggest="zlib"
-rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
-rtmpts_protocol_suggest="zlib"
-rtp_protocol_select="udp_protocol"
-schannel_conflict="openssl gnutls libtls mbedtls"
-sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
-sctp_protocol_select="network"
-securetransport_conflict="openssl gnutls libtls mbedtls"
-srtp_protocol_select="rtp_protocol srtp"
-tcp_protocol_select="network"
-tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
-tls_protocol_select="tcp_protocol"
-# TODO: Support libtls, mbedtls.
-dtls_protocol_deps_any="openssl schannel gnutls"
-dtls_protocol_select="udp_protocol"
-udp_protocol_select="network"
-udplite_protocol_select="network"
-unix_protocol_deps="sys_un_h"
-unix_protocol_select="network"
-ipfs_gateway_protocol_select="https_protocol"
-ipns_gateway_protocol_select="https_protocol"
-
-# external library protocols
-libamqp_protocol_deps="librabbitmq"
-libamqp_protocol_select="network"
-librist_protocol_deps="librist"
-librist_protocol_select="network"
-librtmp_protocol_deps="librtmp"
-librtmpe_protocol_deps="librtmp"
-librtmps_protocol_deps="librtmp"
-librtmpt_protocol_deps="librtmp"
-librtmpte_protocol_deps="librtmp"
-libsmbclient_protocol_deps="libsmbclient gplv3"
-libsrt_protocol_deps="libsrt"
-libsrt_protocol_select="network"
-libssh_protocol_deps="libssh"
-libtls_conflict="openssl gnutls mbedtls"
-libzmq_protocol_deps="libzmq"
-libzmq_protocol_select="network"
-
-# filters
-ametadata_filter_deps="avformat"
-amovie_filter_deps="avcodec avformat"
-aresample_filter_deps="swresample"
-asr_filter_deps="pocketsphinx"
-ass_filter_deps="libass"
-avgblur_opencl_filter_deps="opencl"
-avgblur_vulkan_filter_deps="vulkan spirv_compiler"
-azmq_filter_deps="libzmq"
-blackdetect_vulkan_filter_deps="vulkan spirv_library"
-blackframe_filter_deps="gpl"
-blend_vulkan_filter_deps="vulkan spirv_library"
-boxblur_filter_deps="gpl"
-boxblur_opencl_filter_deps="opencl gpl"
-bs2b_filter_deps="libbs2b"
-bwdif_cuda_filter_deps="ffnvcodec"
-bwdif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
-bwdif_vulkan_filter_deps="vulkan spirv_compiler"
-chromaber_vulkan_filter_deps="vulkan spirv_library"
-color_vulkan_filter_deps="vulkan spirv_library"
-colorkey_opencl_filter_deps="opencl"
-colormatrix_filter_deps="gpl"
-convolution_opencl_filter_deps="opencl"
-coreimage_filter_deps="coreimage appkit"
-coreimage_filter_extralibs="-framework OpenGL"
-coreimagesrc_filter_deps="coreimage appkit"
-coreimagesrc_filter_extralibs="-framework OpenGL"
-cover_rect_filter_deps="avcodec avformat gpl"
-cropdetect_filter_deps="gpl"
-deinterlace_qsv_filter_deps="libmfx"
-deinterlace_qsv_filter_select="qsvvpp"
-deinterlace_vaapi_filter_deps="vaapi"
-delogo_filter_deps="gpl"
-denoise_vaapi_filter_deps="vaapi"
-derain_filter_select="dnn"
-deshake_filter_select="pixelutils"
-deshake_opencl_filter_deps="opencl"
-dilation_opencl_filter_deps="opencl"
-dnn_classify_filter_select="dnn"
-dnn_detect_filter_select="dnn"
-dnn_processing_filter_select="dnn"
-drawtext_filter_deps="libfreetype libharfbuzz"
-drawtext_filter_suggest="libfontconfig libfribidi"
-drawvg_filter_deps="cairo"
-elbg_filter_deps="avcodec"
-eq_filter_deps="gpl"
-erosion_opencl_filter_deps="opencl"
-find_rect_filter_deps="avcodec avformat gpl"
-flip_vulkan_filter_deps="vulkan spirv_library"
-flite_filter_deps="libflite threads"
-framerate_filter_select="scene_sad"
-freezedetect_filter_select="scene_sad"
-frei0r_deps_any="libdl LoadLibrary"
-frei0r_filter_deps="frei0r"
-frei0r_src_filter_deps="frei0r"
-fspp_filter_deps="gpl"
-fsync_filter_deps="avformat"
-gblur_vulkan_filter_deps="vulkan spirv_library"
-hflip_vulkan_filter_deps="vulkan spirv_library"
-histeq_filter_deps="gpl"
-hqdn3d_filter_deps="gpl"
-iccdetect_filter_deps="lcms2"
-iccgen_filter_deps="lcms2"
-identity_filter_select="scene_sad"
-interlace_filter_deps="gpl"
-interlace_vulkan_filter_deps="vulkan spirv_library"
-kerndeint_filter_deps="gpl"
-ladspa_filter_deps="ladspa libdl"
-lcevc_filter_deps="liblcevc_dec"
-lensfun_filter_deps="liblensfun version3"
-libplacebo_filter_deps="libplacebo vulkan"
-lv2_filter_deps="lv2"
-mcdeint_filter_deps="avcodec gpl"
-metadata_filter_deps="avformat"
-movie_filter_deps="avcodec avformat"
-mpdecimate_filter_deps="gpl"
-mpdecimate_filter_select="pixelutils"
-minterpolate_filter_select="scene_sad"
-mptestsrc_filter_deps="gpl"
-msad_filter_select="scene_sad"
-negate_filter_deps="lut_filter"
-nlmeans_opencl_filter_deps="opencl"
-nlmeans_vulkan_filter_deps="vulkan spirv_library"
-nnedi_filter_deps="gpl"
-ocr_filter_deps="libtesseract"
-ocv_filter_deps="libopencv"
-openclsrc_filter_deps="opencl"
-qrencode_filter_deps="libqrencode"
-qrencodesrc_filter_deps="libqrencode"
-quirc_filter_deps="libquirc"
-ocio_filter_deps="libopencolorio"
-libopencolorio_filter_deps="libopencolorio"
-overlay_opencl_filter_deps="opencl"
-overlay_qsv_filter_deps="libmfx"
-overlay_qsv_filter_select="qsvvpp"
-overlay_vaapi_filter_deps="vaapi VAProcPipelineCaps_blend_flags"
-overlay_vulkan_filter_deps="vulkan spirv_library"
-owdenoise_filter_deps="gpl"
-pad_opencl_filter_deps="opencl"
-pan_filter_deps="swresample"
-perspective_filter_deps="gpl"
-phase_filter_deps="gpl"
-pp7_filter_deps="gpl"
-prewitt_opencl_filter_deps="opencl"
-procamp_vaapi_filter_deps="vaapi"
-program_opencl_filter_deps="opencl"
-pullup_filter_deps="gpl"
-remap_opencl_filter_deps="opencl"
-removelogo_filter_deps="avcodec avformat swscale"
-repeatfields_filter_deps="gpl"
-roberts_opencl_filter_deps="opencl"
-rubberband_filter_deps="librubberband"
-sab_filter_deps="gpl swscale"
-scale2ref_filter_deps="swscale"
-scale_filter_deps="swscale"
-sr_amf_filter_deps="amf"
-vpp_amf_filter_deps="amf"
-scale_qsv_filter_deps="libmfx"
-scale_qsv_filter_select="qsvvpp"
-scdet_filter_select="scene_sad"
-scdet_vulkan_filter_deps="vulkan spirv_library"
-select_filter_select="scene_sad"
-sharpness_vaapi_filter_deps="vaapi"
-showcqt_filter_deps="avformat swscale"
-showcqt_filter_suggest="libfontconfig libfreetype"
-signature_filter_deps="gpl avcodec avformat"
-smartblur_filter_deps="gpl swscale"
-sobel_opencl_filter_deps="opencl"
-sofalizer_filter_deps="libmysofa"
-spp_filter_deps="gpl avcodec"
-spp_filter_select="idctdsp fdctdsp me_cmp pixblockdsp"
-sr_filter_deps="avformat swscale"
-sr_filter_select="dnn"
-stereo3d_filter_deps="gpl"
-subtitles_filter_deps="avformat avcodec libass"
-super2xsai_filter_deps="gpl"
-pixfmts_super2xsai_test_deps="super2xsai_filter"
-tinterlace_filter_deps="gpl"
-tinterlace_merge_test_deps="tinterlace_filter"
-tinterlace_pad_test_deps="tinterlace_filter"
-tonemap_filter_deps="const_nan"
-tonemap_vaapi_filter_deps="vaapi VAProcFilterParameterBufferHDRToneMapping"
-tonemap_opencl_filter_deps="opencl const_nan"
-transpose_opencl_filter_deps="opencl"
-transpose_vaapi_filter_deps="vaapi VAProcPipelineCaps_rotation_flags"
-transpose_vt_filter_deps="videotoolbox VTPixelRotationSessionCreate"
-transpose_vulkan_filter_deps="vulkan spirv_library"
-unsharp_opencl_filter_deps="opencl"
-uspp_filter_deps="gpl avcodec"
-vaguedenoiser_filter_deps="gpl"
-vflip_vulkan_filter_deps="vulkan spirv_library"
-vidstabdetect_filter_deps="libvidstab"
-vidstabtransform_filter_deps="libvidstab"
-libvmaf_filter_deps="libvmaf"
-libvmaf_cuda_filter_deps="libvmaf libvmaf_cuda ffnvcodec"
-zmq_filter_deps="libzmq"
-zoompan_filter_deps="swscale"
-zscale_filter_deps="libzimg const_nan"
-scale_vaapi_filter_deps="vaapi"
-scale_vt_filter_deps="videotoolbox VTPixelTransferSessionCreate"
-scale_vulkan_filter_deps="vulkan spirv_compiler spirv_library"
-vpp_qsv_filter_deps="libmfx"
-vpp_qsv_filter_select="qsvvpp"
-xfade_opencl_filter_deps="opencl"
-xfade_vulkan_filter_deps="vulkan spirv_library"
-yadif_cuda_filter_deps="ffnvcodec"
-yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
-yadif_videotoolbox_filter_deps="metal corevideo videotoolbox"
-hstack_vaapi_filter_deps="vaapi_1"
-vstack_vaapi_filter_deps="vaapi_1"
-xstack_vaapi_filter_deps="vaapi_1"
-hstack_qsv_filter_deps="libmfx"
-hstack_qsv_filter_select="qsvvpp"
-vstack_qsv_filter_deps="libmfx"
-vstack_qsv_filter_select="qsvvpp"
-xstack_qsv_filter_deps="libmfx"
-xstack_qsv_filter_select="qsvvpp"
-pad_vaapi_filter_deps="vaapi_1"
-drawbox_vaapi_filter_deps="vaapi_1"
-whisper_filter_deps="whisper"
-
-# examples
-avio_http_serve_files_deps="avformat avutil fork"
-avio_list_dir_deps="avformat avutil"
-avio_read_callback_deps="avformat avcodec avutil"
-decode_audio_example_deps="avcodec avutil"
-decode_filter_audio_example_deps="avfilter avcodec avformat avutil"
-decode_filter_video_example_deps="avfilter avcodec avformat avutil"
-decode_video_example_deps="avcodec avutil"
-demux_decode_example_deps="avcodec avformat avutil"
-encode_audio_example_deps="avcodec avutil"
-encode_video_example_deps="avcodec avutil"
-extract_mvs_example_deps="avcodec avformat avutil"
-filter_audio_example_deps="avfilter avutil"
-hw_decode_example_deps="avcodec avformat avutil"
-mux_example_deps="avcodec avformat avutil swscale"
-qsv_decode_example_deps="avcodec avutil libmfx h264_qsv_decoder"
-remux_example_deps="avcodec avformat avutil"
-resample_audio_example_deps="avutil swresample"
-scale_video_example_deps="avutil swscale"
-show_metadata_example_deps="avformat avutil"
-transcode_aac_example_deps="avcodec avformat swresample"
-transcode_example_deps="avfilter avcodec avformat avutil"
-vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
-vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
-qsv_transcode_example_deps="avcodec avformat avutil h264_qsv_encoder"
-
-# EXTRALIBS_LIST
-cpu_init_extralibs="pthreads_extralibs"
-cws2fws_extralibs="zlib_extralibs"
-
-# libraries, in any order
-avcodec_deps="avutil"
-avcodec_suggest="libm stdatomic zlib"
-avdevice_deps="avformat avcodec avutil"
-avdevice_suggest="libm stdatomic"
-avfilter_deps="avutil"
-avfilter_suggest="libm stdatomic zlib spirv_library"
-avformat_deps="avcodec avutil"
-avformat_suggest="libm network zlib stdatomic"
-avutil_suggest="clock_gettime ffnvcodec gcrypt libm zlib libdrm libmfx opencl openssl user32 vaapi vulkan videotoolbox corefoundation corevideo coremedia bcrypt stdatomic"
-swresample_deps="avutil"
-swresample_suggest="libm libsoxr stdatomic"
-swscale_deps="avutil"
-swscale_suggest="libm stdatomic"
-shader_compression_suggest="zlib"
-
-avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs liblcevc_dec_extralibs lcms2_extralibs"
-avfilter_extralibs="pthreads_extralibs"
-avutil_extralibs="d3d11va_extralibs d3d12va_extralibs mediacodec_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vaapi_win32_extralibs vdpau_x11_extralibs"
-
-# programs
-ffmpeg_deps="avcodec avfilter avformat threads"
-ffmpeg_select="aformat_filter anull_filter atrim_filter crop_filter
-               format_filter hflip_filter null_filter rotate_filter
-               transpose_filter trim_filter vflip_filter"
-ffmpeg_suggest="ole32 psapi shell32"
-ffplay_deps="avcodec avformat avfilter swscale swresample sdl2"
-ffplay_select="crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
-ffplay_suggest="shell32 libplacebo vulkan"
-ffprobe_deps="avcodec avformat"
-ffprobe_suggest="shell32"
-
-# documentation
-podpages_deps="perl"
-manpages_deps="perl pod2man"
-htmlpages_deps="perl"
-htmlpages_deps_any="makeinfo_html texi2html"
-txtpages_deps="perl makeinfo"
-doc_deps_any="manpages htmlpages podpages txtpages"
-
-# default parameters
-
-logfile="ffbuild/config.log"
-
-# installation paths
-prefix_default="/usr/local"
-bindir_default='${prefix}/bin'
-datadir_default='${prefix}/share/ffmpeg'
-docdir_default='${prefix}/share/doc/ffmpeg'
-incdir_default='${prefix}/include'
-libdir_default='${prefix}/lib'
-mandir_default='${prefix}/share/man'
-
-# toolchain
-ar_default="ar"
-cc_default="gcc"
-stdc_default="c17"
-stdcxx_default="c++17"
-cxx_default="g++"
-host_cc_default="gcc"
-doxygen_default="doxygen"
-install="install"
-ln_s_default="ln -s -f"
-glslc_default="glslc"
-metalcc_default="xcrun -sdk macosx metal"
-metallib_default="xcrun -sdk macosx metallib"
-nm_default="nm -g"
-pkg_config_default=pkg-config
-ranlib_default="ranlib"
-strip_default="strip"
-version_script='--version-script'
-objformat="elf32"
-x86asmexe_default="nasm"
-windres_default="windres"
-striptype="direct"
-response_files_default="auto"
-
-# OS
-target_os_default=$(tolower $(uname -s))
-host_os=$target_os_default
-
-# machine
-if test "$target_os_default" = aix; then
-    arch_default=$(uname -p)
-    strip_default="strip -X32_64"
-    nm_default="nm -g -X32_64"
-elif test "$MSYSTEM_CARCH" != ""; then
-    arch_default="$MSYSTEM_CARCH"
-else
-    arch_default=$(uname -m)
-fi
-cpu="generic"
-intrinsics="none"
-
-# configurable options
-enable $PROGRAM_LIST
-enable $DOCUMENT_LIST
-enable $EXAMPLE_LIST
-enable $LIBRARY_LIST
-enable stripping
-enable version_tracking
-
-enable asm
-enable debug
-enable doc
-enable faan faandct faanidct
-enable iamf
-enable large_tests
-enable optimizations
-enable shader_compression
-enable resource_compression
-enable runtime_cpudetect
-enable safe_bitstream_reader
-enable static
-enable swscale_alpha
-enable unstable
-enable valgrind_backtrace
-
-sws_max_filter_size_default=256
-set_default sws_max_filter_size
-
-# internal components are enabled by default
-enable $EXTRALIBS_LIST
-
-# Avoid external, non-system, libraries getting enabled by dependency resolution
-disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
-
-# build settings
-SHFLAGS='-shared -Wl,-soname,$$(@F)'
-LIBPREF="lib"
-LIBSUF=".a"
-FULLNAME='$(NAME)$(BUILDSUF)'
-LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
-SLIBPREF="lib"
-SLIBSUF=".so"
-SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
-SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
-SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
-LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
-SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
-SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
-VERSION_SCRIPT_POSTPROCESS_CMD="cat"
-
-asflags_filter=echo
-cflags_filter=echo
-objcflags_filter=echo
-ldflags_filter=echo
-
-AS_C='-c'
-AS_O='-o $@'
-CC_C='-c'
-CC_E='-E -o $@'
-CC_O='-o $@'
-CXX_C='-c'
-CXX_O='-o $@'
-OBJCC_C='-c'
-OBJCC_E='-E -o $@'
-OBJCC_O='-o $@'
-X86ASM_O='-o $@'
-LD_O='-o $@'
-LD_LIB='-l%'
-LD_PATH='-L'
-HOSTCC_C='-c'
-HOSTCC_E='-E -o $@'
-HOSTCC_O='-o $@'
-HOSTLD_O='-o $@'
-GLSLC_O='-o $@'
-NVCC_C='-c'
-NVCC_O='-o $@'
-
-host_extralibs='-lm'
-host_cflags_filter=echo
-host_ldflags_filter=echo
-
-target_path='$(CURDIR)'
-
-# since the object filename is not given with the -MM flag, the compiler
-# is only able to print the basename, and we must add the path ourselves
-DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
-DEPFLAGS='-MM'
-
-mkdir -p ffbuild
-
-# find source path
-if test -f configure; then
-    source_path=.
-elif test -f src/configure; then
-    source_path=src
-else
-    source_path=$(cd $(dirname "$0"); pwd)
-    case "$source_path" in
-        *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
-    esac
-    test -e "$source_path/config.h" &&
-        die "Out of tree builds are impossible with config.h in source dir."
-fi
-
-for v in "$@"; do
-    r=${v#*=}
-    l=${v%"$r"}
-    r=$(sh_quote "$r")
-    FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
-done
-
-find_things_extern(){
-    thing=$1
-    pattern=$2
-    file=$source_path/$3
-    out=${4:-$thing}
-    sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
-}
-
-find_filters_extern(){
-    file=$source_path/$1
-    sed -n 's/^extern const FFFilter ff_[avfsinkrc]\{2,5\}_\([[:alnum:]_]\{1,\}\);/\1_filter/p' $file
-}
-
-FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
-OUTDEV_LIST=$(find_things_extern muxer FFOutputFormat libavdevice/alldevices.c outdev)
-INDEV_LIST=$(find_things_extern demuxer FFInputFormat libavdevice/alldevices.c indev)
-MUXER_LIST=$(find_things_extern muxer FFOutputFormat libavformat/allformats.c)
-DEMUXER_LIST=$(find_things_extern demuxer FFInputFormat libavformat/allformats.c)
-ENCODER_LIST=$(find_things_extern encoder FFCodec libavcodec/allcodecs.c)
-DECODER_LIST=$(find_things_extern decoder FFCodec libavcodec/allcodecs.c)
-CODEC_LIST="
-    $ENCODER_LIST
-    $DECODER_LIST
-"
-PARSER_LIST=$(find_things_extern parser FFCodecParser libavcodec/parsers.c)
-BSF_LIST=$(find_things_extern bsf FFBitStreamFilter libavcodec/bitstream_filters.c)
-HWACCEL_LIST=$(find_things_extern hwaccel FFHWAccel libavcodec/hwaccels.h)
-PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
-
-AVCODEC_COMPONENTS_LIST="
-    $BSF_LIST
-    $DECODER_LIST
-    $ENCODER_LIST
-    $HWACCEL_LIST
-    $PARSER_LIST
-"
-
-AVDEVICE_COMPONENTS_LIST="
-    $INDEV_LIST
-    $OUTDEV_LIST
-"
-
-AVFILTER_COMPONENTS_LIST="
-    $FILTER_LIST
-"
-
-AVFORMAT_COMPONENTS_LIST="
-    $DEMUXER_LIST
-    $MUXER_LIST
-    $PROTOCOL_LIST
-"
-
-ALL_COMPONENTS="
-    $AVCODEC_COMPONENTS_LIST
-    $AVDEVICE_COMPONENTS_LIST
-    $AVFILTER_COMPONENTS_LIST
-    $AVFORMAT_COMPONENTS_LIST
-"
-
-for n in $COMPONENT_LIST; do
-    v=$(toupper ${n%s})_LIST
-    eval enable \$$v
-    eval ${n}_if_any="\$$v"
-done
-
-enable $ARCH_EXT_LIST
-
-die_unknown(){
-    echo "Unknown option \"$1\"."
-    echo "See $0 --help for available options."
-    exit 1
-}
-
-print_in_columns() {
-    tr ' ' '\n' | sort | tr '\r\n' '  ' | awk -v col_width=24 -v width="$ncols" '
-    {
-        num_cols = width > col_width ? int(width / col_width) : 1;
-        num_rows = int((NF + num_cols-1) / num_cols);
-        y = x = 1;
-        for (y = 1; y <= num_rows; y++) {
-            i = y;
-            for (x = 1; x <= num_cols; x++) {
-                if (i <= NF) {
-                  line = sprintf("%s%-" col_width "s", line, $i);
-                }
-                i = i + num_rows;
-            }
-            print line; line = "";
-        }
-    }' | sed 's/ *$//'
-}
-
-show_list() {
-    suffix=_$1
-    shift
-    echo $* | sed s/$suffix//g | print_in_columns
-    exit 0
-}
-
-rand_list(){
-    IFS=', '
-    set -- $*
-    unset IFS
-    for thing; do
-        comp=${thing%:*}
-        prob=${thing#$comp}
-        prob=${prob#:}
-        is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
-        echo "prob ${prob:-0.5}"
-        printf '%s\n' $comp
-    done
-}
-
-do_random(){
-    action=$1
-    shift
-    random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
-    $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
-}
-
-# deprecated components (disabled by default)
-disable sonic_encoder sonic_ls_encoder
-
-for opt do
-    optval="${opt#*=}"
-    case "$opt" in
-        --extra-ldflags=*)
-            add_ldflags $optval
-        ;;
-        --extra-ldexeflags=*)
-            add_ldexeflags $optval
-        ;;
-        --extra-ldsoflags=*)
-            add_ldsoflags $optval
-        ;;
-        --extra-ldlibflags=*)
-            warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
-                 "removed in the future. Use --extra-ldsoflags instead."
-            add_ldsoflags $optval
-        ;;
-        --extra-libs=*)
-            add_extralibs $optval
-        ;;
-        --disable-devices)
-            disable $INDEV_LIST $OUTDEV_LIST
-        ;;
-        --enable-debug=*)
-            debuglevel="$optval"
-        ;;
-        --disable-programs)
-            disable $PROGRAM_LIST
-        ;;
-        --disable-everything)
-            map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
-        ;;
-        --disable-all)
-            map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
-            disable $LIBRARY_LIST $PROGRAM_LIST doc
-            enable avutil
-        ;;
-        --enable-random|--disable-random)
-            action=${opt%%-random}
-            do_random ${action#--} $COMPONENT_LIST
-        ;;
-        --enable-random=*|--disable-random=*)
-            action=${opt%%-random=*}
-            do_random ${action#--} $optval
-        ;;
-        --enable-sdl)
-            enable sdl2
-        ;;
-        --enable-lto*)
-            lto=-f${opt#--enable-}
-        ;;
-        --enable-*=*|--disable-*=*)
-            eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
-            is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
-            eval list=\$$(toupper $thing)_LIST
-            name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
-            list=$(filter "$name" $list)
-            [ "$list" = "" ] && warn "Option $opt did not match anything"
-            test $action = enable && warn_if_gets_disabled $list
-            $action $list
-        ;;
-        --enable-?*|--disable-?*)
-            eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
-            if is_in $option $COMPONENT_LIST; then
-                test $action = disable && action=unset
-                eval $action \$$(toupper ${option%s})_LIST
-            elif is_in $option $CMDLINE_SELECT; then
-                $action $option
-            else
-                die_unknown $opt
-            fi
-        ;;
-        --list-*)
-            NAME="${opt#--list-}"
-            is_in $NAME $COMPONENT_LIST || die_unknown $opt
-            NAME=${NAME%s}
-            eval show_list $NAME \$$(toupper $NAME)_LIST
-        ;;
-        --help|-h) show_help
-        ;;
-        --quiet|-q) quiet=yes
-        ;;
-        --fatal-warnings) enable fatal_warnings
-        ;;
-        --libfuzzer=*)
-            libfuzzer_path="$optval"
-        ;;
-        *)
-            optname="${opt%%=*}"
-            optname="${optname#--}"
-            optname=$(echo "$optname" | sed 's/-/_/g')
-            if is_in $optname $CMDLINE_SET; then
-                eval $optname='$optval'
-            elif is_in $optname $CMDLINE_APPEND; then
-                append $optname "$optval"
-            else
-                die_unknown $opt
-            fi
-        ;;
-    esac
-done
-
-for e in $env; do
-    eval "export $e"
-done
-
-if disabled autodetect; then
-
-    # Unless iconv is explicitly disabled by the user, we still want to probe
-    # for the iconv from the libc.
-    disabled iconv || enable libc_iconv
-
-    disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
-    disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
-fi
-# Mark specifically enabled, but normally autodetected libraries as requested.
-for lib in $AUTODETECT_LIBS; do
-    enabled $lib && request $lib
-done
-#TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
-enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
-enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
-
-disabled logging && logfile=/dev/null
-
-# command line configuration sanity checks
-
-# we need to build at least one lib type
-if ! enabled_any static shared; then
-    cat <<EOF
-At least one library type must be built.
-Specify --enable-static to build the static libraries or --enable-shared to
-build the shared libraries as well. To only build the shared libraries specify
---disable-static in addition to --enable-shared.
-EOF
-    exit 1
-fi
-
-die_license_disabled() {
-    enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
-}
-
-die_license_disabled_gpl() {
-    enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
-}
-
-map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
-map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
-
-enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
-map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
-
-enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
-enabled gpl && enable lgpl_gpl # Files that are marked as LGPL but some developers prefer only building them with --enable-gpl
-
-if enabled nonfree; then
-    license="nonfree and unredistributable"
-elif enabled gplv3; then
-    license="GPL version 3 or later"
-elif enabled lgplv3; then
-    license="LGPL version 3 or later"
-elif enabled gpl; then
-    license="GPL version 2 or later"
-else
-    license="LGPL version 2.1 or later"
-fi
-
-enabled_all gnutls openssl &&
-    die "GnuTLS and OpenSSL must not be enabled at the same time."
-
-enabled_all gnutls mbedtls &&
-    die "GnuTLS and mbedTLS must not be enabled at the same time."
-
-enabled_all openssl mbedtls &&
-    die "OpenSSL and mbedTLS must not be enabled at the same time."
-
-enabled_all libxevd libxevdb &&
-    die "libxevd and libxevdb must not be enabled at the same time."
-
-enabled_all libxeve libxeveb &&
-    die "libxeve and libxevdb must not be enabled at the same time."
-
-# Disable all the library-specific components if the library itself
-# is disabled, see AVCODEC_LIST and following _LIST variables.
-
-disable_components(){
-    disabled ${1} && disable $(
-        eval components="\$$(toupper ${1})_COMPONENTS"
-        map 'eval echo \${$(toupper ${v%s})_LIST}' $components
-    )
-}
-
-map 'disable_components $v' $LIBRARY_LIST
-
-echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
-set >> $logfile
-
-test -n "$valgrind" && toolchain="valgrind-memcheck"
-
-add_sanitizer_flags(){
-    case "$1" in
-        asan)
-            add_allcflags -fsanitize=address
-            add_ldflags -fsanitize=address
-        ;;
-        fuzz)
-            add_allcflags -fsanitize=fuzzer-no-link
-            add_ldflags -fsanitize=fuzzer-no-link
-            : "${libfuzzer_path:=-fsanitize=fuzzer}"
-        ;;
-        lsan)
-            add_allcflags -fsanitize=leak
-            add_ldflags -fsanitize=leak
-        ;;
-        msan)
-            add_allcflags -fsanitize=memory -fsanitize-memory-track-origins
-            add_ldflags -fsanitize=memory
-        ;;
-        tsan)
-            add_allcflags -fsanitize=thread
-            add_ldflags -fsanitize=thread
-        ;;
-        usan|ubsan)
-            add_allcflags -fsanitize=undefined
-            add_ldflags -fsanitize=undefined
-        ;;
-        ?*)
-            die "Unknown sanitizer $1"
-        ;;
-    esac
-}
-
-add_sanitizers(){
-    IFS=-
-    set -- $*
-    unset IFS
-    for sanitizer; do
-        add_sanitizer_flags "$sanitizer"
-    done
-    add_allcflags -fno-omit-frame-pointer
-}
-
-case "$toolchain" in
-    clang-*)
-        add_sanitizers "${toolchain#clang-}"
-        cc_default="clang"
-        cxx_default="clang++"
-    ;;
-    gcc-*)
-        add_sanitizers "${toolchain#gcc-}"
-        cc_default="gcc"
-        cxx_default="g++"
-        # In case of tsan with gcc, PIC has to be enabled
-        if [ "${toolchain#gcc-}" = "tsan" ]; then
-            add_allcflags -fPIC
-            add_ldflags -fPIC
-        fi
-    ;;
-    valgrind-*)
-        target_exec_default="valgrind"
-        case "$toolchain" in
-            valgrind-massif)
-                target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
-                ;;
-            valgrind-memcheck)
-                target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
-                ;;
-        esac
-    ;;
-    msvc)
-        cl_major_ver=$(cl.exe 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
-        if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
-            cc_default="cl.exe"
-            cxx_default="cl.exe"
-        else
-            die "Unsupported MSVC version (2013 or newer required)"
-        fi
-        ld_default="$source_path/compat/windows/mslink"
-        windres_default="$source_path/compat/windows/mswindres"
-        nm_default="dumpbin.exe -symbols"
-        ar_default="lib.exe"
-        case "${arch:-$arch_default}" in
-        aarch64|arm64)
-            as_default="armasm64.exe"
-            ;;
-        arm*)
-            as_default="armasm.exe"
-            ;;
-        esac
-        target_os_default="win32"
-        # Use a relative path for TMPDIR. This makes sure all the
-        # ffconf temp files are written with a relative path, avoiding
-        # issues with msys/win32 path conversion for MSVC parameters
-        # such as -Fo<file> or -out:<file>.
-        TMPDIR=.
-    ;;
-    icl)
-        cc_default="icl"
-        ld_default="xilink"
-        nm_default="dumpbin -symbols"
-        ar_default="xilib"
-        target_os_default="win32"
-        TMPDIR=.
-    ;;
-    gcov)
-        add_allcflags  -fprofile-arcs -ftest-coverage
-        add_ldflags -fprofile-arcs -ftest-coverage
-    ;;
-    llvm-cov)
-        add_allcflags -fprofile-arcs -ftest-coverage
-        add_ldflags --coverage
-    ;;
-    hardened)
-        add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
-        add_allcflags -fno-strict-overflow -fstack-protector-all
-        add_ldflags  -Wl,-z,relro -Wl,-z,now
-        add_allcflags -fPIE
-        add_ldexeflags -fPIE -pie
-    ;;
-    ?*)
-        die "Unknown toolchain $toolchain"
-    ;;
-esac
-
-if test -n "$cross_prefix"; then
-    test -n "$arch" && test -n "$target_os" ||
-        die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
-    enable cross_compile
-fi
-
-set_default target_os
-if test "$target_os" = android; then
-    cc_default="clang"
-fi
-
-ar_default="${cross_prefix}${ar_default}"
-cc_default="${cross_prefix}${cc_default}"
-cxx_default="${cross_prefix}${cxx_default}"
-nm_default="${cross_prefix}${nm_default}"
-pkg_config_default="${cross_prefix}${pkg_config_default}"
-ranlib_default="${cross_prefix}${ranlib_default}"
-strip_default="${cross_prefix}${strip_default}"
-windres_default="${cross_prefix}${windres_default}"
-
-sysinclude_default="${sysroot}/usr/include"
-
-if enabled cuda_sdk; then
-    warn "Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead."
-    enable cuda_nvcc
-fi
-
-if enabled cuda_nvcc; then
-    nvcc_default="nvcc"
-    nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
-else
-    nvcc_default="clang"
-    nvccflags_default="--cuda-gpu-arch=sm_30 -O2"
-    NVCC_C=""
-fi
-
-set_default nvcc
-
-if enabled cuda_nvcc; then
-    if $nvcc $nvccflags_default 2>&1 | grep -qi unsupported; then
-        nvccflags_default="-gencode arch=compute_60,code=sm_60 -O2"
-    fi
-    if $nvcc $nvccflags_default 2>&1 | grep -qi unsupported; then
-        nvccflags_default="-gencode arch=compute_75,code=sm_75 -O2"
-    fi
-fi
-
-set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
-    target_exec x86asmexe glslc metalcc metallib stdc stdcxx
-enabled cross_compile || host_cc_default=$cc
-set_default host_cc
-
-if ${ranlib} 2>&1 | grep -q "\-D "; then
-    ranlib="${ranlib} -D"
-fi
-
-pkg_config_fail_message=""
-if ! $pkg_config --version >/dev/null 2>&1; then
-    warn "$pkg_config not found, library detection may fail."
-    pkg_config=false
-elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
-    pkg_config_fail_message="
-Note: When building a static binary, add --pkg-config-flags=\"--static\"."
-fi
-
-if test $doxygen != $doxygen_default && \
-  ! $doxygen --version >/dev/null 2>&1; then
-    warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
-fi
-
-exesuf() {
-    case $1 in
-        mingw32*|mingw64*|msys*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian|windows_nt) echo .exe ;;
-    esac
-}
-
-EXESUF=$(exesuf $target_os)
-HOSTEXESUF=$(exesuf $host_os)
-
-# set temporary file name
-: ${TMPDIR:=$TEMPDIR}
-: ${TMPDIR:=$TMP}
-: ${TMPDIR:=/tmp}
-
-if [ -n "$tempprefix" ] ; then
-    mktemp(){
-        tmpname="$tempprefix.${HOSTNAME}.${UID}"
-        echo "$tmpname"
-        mkdir "$tmpname"
-    }
-elif ! test_cmd mktemp -u XXXXXX; then
-    # simple replacement for missing mktemp
-    # NOT SAFE FOR GENERAL USE
-    mktemp(){
-        tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
-        echo "$tmpname"
-        mkdir "$tmpname"
-    }
-fi
-
-FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
-    die "Unable to create temporary directory in $TMPDIR."
-
-tmpfile(){
-    tmp="${FFTMPDIR}/test"$2
-    (set -C; exec > $tmp) 2> /dev/null ||
-        die "Unable to create temporary file in $FFTMPDIR."
-    eval $1=$tmp
-}
-
-trap 'rm -rf -- "$FFTMPDIR"' EXIT
-trap 'exit 2' INT
-
-tmpfile TMPASM .asm
-tmpfile TMPC   .c
-tmpfile TMPCPP .cpp
-tmpfile TMPE   $EXESUF
-tmpfile TMPH   .h
-tmpfile TMPM   .m
-tmpfile TMPCU  .cu
-tmpfile TMPGLSL .comp.glsl
-tmpfile TMPO   .o
-tmpfile TMPS   .S
-tmpfile TMPSH  .sh
-tmpfile TMPV   .ver
-
-unset -f mktemp
-
-chmod +x $TMPE
-
-# make sure we can execute files in $TMPDIR
-cat > $TMPSH 2>> $logfile <<EOF
-#!/bin/sh
-EOF
-chmod +x $TMPSH >> $logfile 2>&1
-if ! $TMPSH >> $logfile 2>&1; then
-    cat <<EOF
-Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
-variable to another directory and make sure that it is not mounted noexec.
-EOF
-    die "Sanity test failed."
-fi
-
-armasm_flags(){
-    for flag; do
-        case $flag in
-            # Filter out MSVC cl.exe options from cflags that shouldn't
-            # be passed to gas-preprocessor
-            -M[TD]*)                                            ;;
-            -guard:signret)                                     ;;
-            *)                  echo $flag                      ;;
-        esac
-   done
-}
-
-cparser_flags(){
-    for flag; do
-        case $flag in
-            -Wno-switch)             echo -Wno-switch-enum ;;
-            -Wno-format-zero-length) ;;
-            -Wdisabled-optimization) ;;
-            -Wno-pointer-sign)       echo -Wno-other ;;
-            *)                       echo $flag ;;
-        esac
-    done
-}
-
-msvc_common_flags(){
-    for flag; do
-        case $flag in
-            # In addition to specifying certain flags under the compiler
-            # specific filters, they must be specified here as well or else the
-            # generic catch all at the bottom will print the original flag.
-            -Wall)                ;;
-            -Wextra)              ;;
-            -std=c*)              echo /std:${flag#-std=};;
-            # Common flags
-            -fomit-frame-pointer) ;;
-            -g)                   echo -Z7 ;;
-            -fno-math-errno)      ;;
-            -fno-common)          ;;
-            -fno-signed-zeros)    ;;
-            -fPIC)                ;;
-            -mthumb)              ;;
-            -march=*)             ;;
-            -mfp16-format=*)      ;;
-            -lz)                  echo zlib.lib ;;
-            -lx264)               echo libx264.lib ;;
-            -lstdc++)             ;;
-            -l*)                  echo ${flag#-l}.lib ;;
-            -LARGEADDRESSAWARE)   echo $flag ;;
-            -L*) [ "$_flags_type" = "link" ] && echo -libpath:${flag#-L} ;;
-            -Wl,*)                ;;
-            *)                    echo $flag ;;
-        esac
-    done
-}
-
-msvc_flags(){
-    msvc_common_flags "$@"
-    for flag; do
-        case $flag in
-            -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
-                                       -wd4554 -wd4267 ;;
-            -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
-                                       -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
-                                       -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
-                                       -wd4307 \
-                                       -wd4273 -wd4554 -wd4701 -wd4703 ;;
-        esac
-    done
-}
-
-msvc_flags_link(){
-    _flags_type=link
-    msvc_flags "$@"
-    unset _flags_type
-}
-
-icl_flags(){
-    msvc_common_flags "$@"
-    for flag; do
-        case $flag in
-            # Despite what Intel's documentation says -Wall, which is supported
-            # on Windows, does enable remarks so disable them here.
-            -Wall)                echo $flag -Qdiag-disable:remark ;;
-            -std=$stdc)           echo -Qstd=$stdc ;;
-            -flto*)               echo -ipo ;;
-        esac
-    done
-}
-
-icc_flags(){
-    for flag; do
-        case $flag in
-            -flto*)               echo -ipo ;;
-            *)                    echo $flag ;;
-        esac
-    done
-}
-
-suncc_flags(){
-    for flag; do
-        case $flag in
-            -march=*|-mcpu=*)
-                case "${flag#*=}" in
-                    native)                   echo -xtarget=native       ;;
-                    v9|niagara)               echo -xarch=sparc          ;;
-                    ultrasparc)               echo -xarch=sparcvis       ;;
-                    ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
-                    i586|pentium)             echo -xchip=pentium        ;;
-                    i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
-                    pentium3*|c3-2)           echo -xtarget=pentium3     ;;
-                    pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
-                    pentium4*)          echo -xtarget=pentium4           ;;
-                    prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
-                    *-sse3)             echo -xarch=sse3                 ;;
-                    core2)              echo -xarch=ssse3 -xchip=core2   ;;
-                    bonnell)                   echo -xarch=ssse3         ;;
-                    corei7|nehalem)            echo -xtarget=nehalem     ;;
-                    westmere)                  echo -xtarget=westmere    ;;
-                    silvermont)                echo -xarch=sse4_2        ;;
-                    corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
-                    core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
-                                               echo -xarch=avx           ;;
-                    amdfam10|barcelona)        echo -xtarget=barcelona   ;;
-                    btver1)                    echo -xarch=amdsse4a      ;;
-                    btver2|bdver*|znver*)      echo -xarch=avx           ;;
-                    athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
-                    k8|opteron|athlon64|athlon-fx)
-                                               echo -xarch=sse2a         ;;
-                    athlon*)                   echo -xarch=pentium_proa  ;;
-                esac
-                ;;
-            -std=$stdc)           echo -x$stdc            ;;
-            -fomit-frame-pointer) echo -xregs=frameptr    ;;
-            -fPIC)                echo -KPIC -xcode=pic32 ;;
-            -W*,*)                echo $flag              ;;
-            -f*-*|-W*|-mimpure-text)                      ;;
-            -shared)              echo -G                 ;;
-            *)                    echo $flag              ;;
-        esac
-    done
-}
-
-probe_cc(){
-    pfx=$1
-    _cc=$2
-    first=$3
-
-    unset _type _ident _cc_c _cc_e _cc_o _flags _cflags _cxxflags
-    unset _ld_o _ldflags _ld_lib _ld_path
-    unset _depflags _DEPCMD _DEPFLAGS _DEPCCFLAGS _DEPCXXFLAGS
-    _flags_filter=echo
-
-    if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
-        true # no-op to avoid reading stdin in following checks
-    elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
-        _type=llvm_gcc
-        gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
-        _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
-        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
-        _cflags_speed='-O3'
-        _cflags_size='-Os'
-    elif $_cc -v 2>&1 | grep -qi ^gcc; then
-        _type=gcc
-        gcc_version=$($_cc --version | head -n1)
-        gcc_basever=$($_cc -dumpversion)
-        gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
-        gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
-        _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
-        case $gcc_basever in
-            2) ;;
-            2.*) ;;
-            *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
-        esac
-        if [ "$first" = true ]; then
-            case $gcc_basever in
-                4.2*)
-                warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
-            esac
-        fi
-        _cflags_speed='-O3'
-        _cflags_size='-Os'
-    elif $_cc --version 2>/dev/null | grep -q ^icc; then
-        _type=icc
-        _ident=$($_cc --version | head -n1)
-        _depflags='-MMD'
-        _cflags_speed='-O3'
-        _cflags_size='-Os'
-        _flags_filter=icc_flags
-    elif $_cc -v 2>&1 | grep -q xlc; then
-        _type=xlc
-        _ident=$($_cc -qversion 2>/dev/null | head -n1)
-        _cflags_speed='-O5'
-        _cflags_size='-O5 -qcompact'
-    elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
-        test -d "$sysroot" || die "No valid sysroot specified."
-        _type=armcc
-        _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
-        armcc_conf="$PWD/armcc.conf"
-        $_cc --arm_linux_configure                 \
-             --arm_linux_config_file="$armcc_conf" \
-             --configure_sysroot="$sysroot"        \
-             --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
-             die "Error creating armcc configuration file."
-        $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
-        _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
-        as_default="${cross_prefix}gcc"
-        _depflags='-MMD'
-        _cflags_speed='-O3'
-        _cflags_size='-Os'
-    elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
-        _type=clang
-        _ident=$($_cc --version 2>/dev/null | head -n1)
-        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
-        _cflags_speed='-O3'
-        _cflags_size='-Oz'
-    elif $_cc -V 2>&1 | grep -q Sun; then
-        _type=suncc
-        _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
-        _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
-        _DEPFLAGS='-xM1 -x$stdc'
-        _ldflags='-std=$stdc'
-        _cflags_speed='-O5'
-        _cflags_size='-O5 -xspace'
-        _flags_filter=suncc_flags
-    elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
-        _type=pathscale
-        _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
-        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
-        _cflags_speed='-O2'
-        _cflags_size='-Os'
-        _flags_filter='filter_out -Wdisabled-optimization'
-    elif $_cc -v 2>&1 | grep -q Open64; then
-        _type=open64
-        _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
-        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
-        _cflags_speed='-O2'
-        _cflags_size='-Os'
-        _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
-    elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
-        _type=armasm
-        _ident=$($_cc | head -n1)
-        # 4509: "This form of conditional instruction is deprecated"
-        _flags="-nologo -ignore 4509"
-        _flags_filter=armasm_flags
-    elif $_cc 2>&1 | grep -q Intel; then
-        _type=icl
-        _ident=$($_cc 2>&1 | head -n1)
-        _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
-        # Not only is O3 broken on 13.x+ but it is slower on all previous
-        # versions (tested) as well.
-        _cflags_speed="-O2"
-        _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
-        if $_cc 2>&1 | grep -q Linker; then
-            _ld_o='-out:$@'
-        else
-            _ld_o='-Fe$@'
-        fi
-        _cc_o='-Fo$@'
-        _cc_e='-P'
-        _flags_filter=icl_flags
-        _ld_lib='%.lib'
-        _ld_path='-libpath:'
-        # -Qdiag-error to make icl error when seeing certain unknown arguments
-        _flags='-nologo -Qdiag-error:4044,10157'
-        # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
-        # with MSVC which enables it by default.
-        _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
-        disable stripping
-    elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
-        # lld can emulate multiple different linkers; in ms link.exe mode,
-        # the -? parameter gives the help output which contains an identifiable
-        # string, while it gives an error in other modes.
-        _type=lld-link
-        # The link.exe mode doesn't have a switch for getting the version,
-        # but we can force it back to gnu mode and get the version from there.
-        _ident=$($_cc -flavor gnu --version 2>/dev/null)
-        _ld_o='-out:$@'
-        _flags_filter=msvc_flags_link
-        _ld_lib='%.lib'
-        _ld_path='-libpath:'
-    elif VSLANG=1033 $_cc -nologo- 2>&1 | grep -q ^Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
-        _type=msvc
-        if VSLANG=1033 $_cc -nologo- 2>&1 | grep -q ^Microsoft; then
-            # Depending on the tool (cl.exe or link.exe), the version number
-            # is printed on the first line of stderr or stdout
-            _ident=$(VSLANG=1033 $_cc 2>&1 | grep ^Microsoft | head -n1 | tr -d '\r')
-        else
-            _ident=$($_cc --version 2>/dev/null | head -n1 | tr -d '\r')
-        fi
-        if [ -x "$(command -v wslpath)" ]; then
-            _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); if (!match($$0, / /)) { print $$0 } }'\'' | xargs -r -d\\n -n1 wslpath -u | awk '\''BEGIN { printf "%s:", "$@" }; { sub(/\r/,""); printf " %s", $$0 }; END { print "" }'\'' > $(@:.o=.d)'
-
-        else
-            _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
-        fi
-        _DEPFLAGS='$(CPPFLAGS) -showIncludes -Zs'
-        _DEPCCFLAGS='$(CFLAGS)'
-        _DEPCXXFLAGS='$(CXXFLAGS)'
-        _cflags_speed="-O2"
-        _cflags_size="-O1"
-        if $_cc -nologo- 2>&1 | grep -q Linker; then
-            _ld_o='-out:$@'
-            _flags_filter=msvc_flags_link
-        else
-            _ld_o='-Fe$@'
-            _flags_filter=msvc_flags
-        fi
-        _cc_o='-Fo$@'
-        _cc_e='-P -Fi$@'
-        _ld_lib='%.lib'
-        _ld_path='-libpath:'
-        _flags='-nologo'
-        _cxxflags='-Zc:__cplusplus -EHsc'
-        disable stripping
-    elif $_cc --version 2>/dev/null | grep -q ^cparser; then
-        _type=cparser
-        _ident=$($_cc --version | head -n1)
-        _depflags='-MMD'
-        _cflags_speed='-O4'
-        _cflags_size='-O2'
-        _flags_filter=cparser_flags
-    fi
-
-    eval ${pfx}_type=\$_type
-    eval ${pfx}_ident=\$_ident
-}
-
-set_ccvars(){
-    eval ${1}_C=\${_cc_c-\${${1}_C}}
-    eval ${1}_E=\${_cc_e-\${${1}_E}}
-    eval ${1}_O=\${_cc_o-\${${1}_O}}
-
-    if [ -n "$_depflags" ]; then
-        eval "${1}_DEPFLAGS=\"\$_depflags\""
-    else
-        eval "${1}DEP=\"\${_DEPCMD:-\$DEPCMD}\""
-        eval "${1}DEP_FLAGS=\"\${_DEPFLAGS:-\$DEPFLAGS} \${_DEP${1}FLAGS:-\$DEP${1}FLAGS}\""
-        eval "DEP${1}FLAGS=\"\$_flags\""
-    fi
-}
-
-probe_cc cc "$cc" "true"
-cflags_filter=$_flags_filter
-cflags_speed=$_cflags_speed
-cflags_size=$_cflags_size
-cflags_noopt=$_cflags_noopt
-add_cflags $_flags $_cflags
-add_cxxflags $_flags $_cxxflags
-cc_ldflags=$_ldflags
-set_ccvars CC
-set_ccvars CXX
-
-probe_cc hostcc "$host_cc"
-host_cflags_filter=$_flags_filter
-host_cflags_speed=$_cflags_speed
-add_host_cflags  $_flags $_cflags
-set_ccvars HOSTCC
-
-test -n "$cc_type" && enable $cc_type ||
-    warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
-
-: ${as_default:=$cc}
-: ${objcc_default:=$cc}
-: ${dep_cc_default:=$cc}
-: ${ld_default:=$cc}
-: ${host_ld_default:=$host_cc}
-set_default ar as objcc dep_cc ld ln_s host_ld windres response_files
-
-probe_cc as "$as"
-asflags_filter=$_flags_filter
-add_asflags $_flags $_cflags
-set_ccvars AS
-
-probe_cc objcc "$objcc"
-objcflags_filter=$_flags_filter
-add_objcflags $_flags $_cflags
-set_ccvars OBJC
-
-probe_cc ld "$ld"
-ldflags_filter=$_flags_filter
-add_ldflags $_flags $_ldflags
-test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
-LD_O=${_ld_o-$LD_O}
-LD_LIB=${_ld_lib-$LD_LIB}
-LD_PATH=${_ld_path-$LD_PATH}
-
-probe_cc hostld "$host_ld"
-host_ldflags_filter=$_flags_filter
-add_host_ldflags $_flags $_ldflags
-HOSTLD_O=${_ld_o-$HOSTLD_O}
-
-if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
-    probe_cc depcc "$dep_cc"
-    CCDEP=${_DEPCMD:-$DEPCMD}
-    CXXDEP=${CCDEP}
-    CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
-    CXXDEP_FLAGS=${CCDEP_FLAGS}
-    DEPCCFLAGS=$_flags $_cflags
-    DEPCXXFLAGS=$_flags $_cxxflags
-fi
-
-if VSLANG=1033 $ar 2>&1 | grep -q ^Microsoft; then
-    arflags="-nologo"
-    ar_o='-out:$@'
-elif $ar 2>&1 | grep -q "\[D\] "; then
-    arflags="rcD"
-    ar_o='$@'
-else
-    arflags="rc"
-    ar_o='$@'
-fi
-
-# Treat unrecognized flags as errors on MSVC
-test_cpp_condition windows.h "_MSC_FULL_VER >= 193030705" &&
-    check_cflags -options:strict
-test_host_cpp_condition windows.h "_MSC_FULL_VER >= 193030705" &&
-    check_host_cflags -options:strict
-
-add_cflags $extra_cflags
-add_cxxflags $extra_cxxflags
-add_objcflags $extra_objcflags
-add_asflags $extra_cflags
-
-if test -n "$sysroot"; then
-    case "$cc_type" in
-        gcc|llvm_gcc|clang)
-            add_cppflags --sysroot="$sysroot"
-            add_ldflags --sysroot="$sysroot"
-        ;;
-    esac
-fi
-
-if test "$cpu" = host; then
-    enabled cross_compile &&
-        warn "--cpu=host makes no sense when cross-compiling."
-
-    case "$cc_type" in
-        gcc|llvm_gcc)
-            check_native(){
-                : > $TMPC
-                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
-                sed -n "/cc1.*$1=/{
-                            s/.*$1=\\([^ ]*\\).*/\\1/
-                            p
-                            q
-                        }" $TMPE
-            }
-            cpu=$(check_native -march || check_native -mcpu)
-        ;;
-        clang)
-            check_native(){
-                : > $TMPC
-                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
-                sed -n "/cc1.*-target-cpu /{
-                            s/.*-target-cpu \\([^ ]*\\).*/\\1/
-                            p
-                            q
-                        }" $TMPE
-            }
-            cpu=$(check_native -march)
-        ;;
-    esac
-
-    test "${cpu:-host}" = host &&
-        die "--cpu=host not supported with compiler $cc"
-fi
-
-# Deal with common $arch aliases
-case "$arch" in
-    aarch64|arm64)
-        arch="aarch64"
-    ;;
-    arm*|iPad*|iPhone*)
-        arch="arm"
-    ;;
-    loongarch*|loong64)
-        arch="loongarch"
-    ;;
-    mips*|IP*)
-        case "$arch" in
-        *el)
-            add_cppflags -EL
-            add_ldflags -EL
-        ;;
-        *eb)
-            add_cppflags -EB
-            add_ldflags -EB
-        ;;
-        esac
-        arch="mips"
-    ;;
-    parisc*|hppa*)
-        arch="parisc"
-    ;;
-    "Power Macintosh"|ppc*|powerpc*)
-        arch="ppc"
-    ;;
-    riscv*)
-        arch="riscv"
-    ;;
-    s390|s390x)
-        arch="s390"
-    ;;
-    sun4*|sparc*)
-        arch="sparc"
-    ;;
-    tilegx|tile-gx)
-        arch="tilegx"
-    ;;
-    wasm*)
-        arch="wasm"
-    ;;
-    i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
-        arch="x86"
-    ;;
-esac
-
-is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
-enable $arch
-
-# Add processor-specific flags
-if enabled aarch64; then
-
-    case $cpu in
-        armv*)
-            cpuflags="-march=$cpu"
-        ;;
-        *)
-            cpuflags="-mcpu=$cpu"
-        ;;
-    esac
-
-elif enabled arm; then
-
-    check_arm_arch() {
-        test_cpp_condition stddef.h \
-            "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
-            $cpuflags
-    }
-
-    probe_arm_arch() {
-        if   check_arm_arch 4;        then echo armv4
-        elif check_arm_arch 4T;       then echo armv4t
-        elif check_arm_arch 5;        then echo armv5
-        elif check_arm_arch 5E;       then echo armv5e
-        elif check_arm_arch 5T;       then echo armv5t
-        elif check_arm_arch 5TE;      then echo armv5te
-        elif check_arm_arch 5TEJ;     then echo armv5te
-        elif check_arm_arch 6;        then echo armv6
-        elif check_arm_arch 6J;       then echo armv6j
-        elif check_arm_arch 6K;       then echo armv6k
-        elif check_arm_arch 6Z;       then echo armv6z
-        elif check_arm_arch 6KZ;      then echo armv6zk
-        elif check_arm_arch 6ZK;      then echo armv6zk
-        elif check_arm_arch 6T2;      then echo armv6t2
-        elif check_arm_arch 7;        then echo armv7
-        elif check_arm_arch 7A  7_A;  then echo armv7-a
-        elif check_arm_arch 7S;       then echo armv7-a
-        elif check_arm_arch 7R  7_R;  then echo armv7-r
-        elif check_arm_arch 7M  7_M;  then echo armv7-m
-        elif check_arm_arch 7EM 7E_M; then echo armv7-m
-        elif check_arm_arch 8A  8_A;  then echo armv8-a
-        fi
-    }
-
-
-    case $cpu in
-        generic)
-            subarch=$(probe_arm_arch | sed 's/[^a-z0-9]//g')
-        ;;
-        armv*)
-            cpuflags="-march=$cpu"
-            subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
-        ;;
-        *)
-            cpuflags="-mcpu=$cpu"
-            case $cpu in
-                cortex-a*)                               subarch=armv7a  ;;
-                cortex-r*)                               subarch=armv7r  ;;
-                cortex-m*)                 enable thumb; subarch=armv7m  ;;
-                arm11*)                                  subarch=armv6   ;;
-                arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
-                armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
-                *)                             subarch=$(probe_arm_arch) ;;
-            esac
-        ;;
-    esac
-
-    case "$subarch" in
-        armv5t*)    enable fast_clz                ;;
-        armv[6-8]*)
-            enable fast_clz
-            disabled fast_unaligned || enable fast_unaligned
-            ;;
-    esac
-
-    check_allcflags -mfp16-format=ieee
-
-elif enabled loongarch; then
-
-    enable simd_align_32
-    enable fast_64bit
-    enable fast_clz
-    enable fast_unaligned
-    case $cpu in
-        la464)
-            cpuflags="-march=$cpu"
-        ;;
-    esac
-elif enabled mips; then
-
-    if [ "$cpu" != "generic" ]; then
-        disable mips32r2
-        disable mips32r5
-        disable mips64r2
-        disable mips32r6
-        disable mips64r6
-        disable loongson2
-        disable loongson3
-        disable mipsdsp
-        disable mipsdspr2
-
-        cpuflags="-march=$cpu"
-
-        case $cpu in
-            # General ISA levels
-            mips1|mips3)
-            ;;
-            mips32r2)
-                enable mips32r2
-            ;;
-            mips32r5)
-                enable mips32r2
-                enable mips32r5
-            ;;
-            mips64r2|mips64r5)
-                enable mips64r2
-                enable loongson3
-            ;;
-            # Cores from MIPS(MTI)
-            24kc)
-                disable mipsfpu
-                enable mips32r2
-            ;;
-            24kf*|24kec|34kc|74Kc|1004kc)
-                enable mips32r2
-            ;;
-            24kef*|34kf*|1004kf*)
-                enable mipsdsp
-                enable mips32r2
-            ;;
-            p5600)
-                enable mips32r2
-                enable mips32r5
-                check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
-            ;;
-            i6400)
-                enable mips64r6
-                check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
-            ;;
-            p6600)
-                enable mips64r6
-                check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
-            ;;
-            # Cores from Loongson
-            loongson2e|loongson2f|loongson3*)
-                enable simd_align_16
-                enable fast_64bit
-                enable fast_clz
-                enable fast_cmov
-                enable fast_unaligned
-                disable aligned_stack
-                # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
-                if test "$cc_type" = "gcc"; then
-                    case $gcc_basever in
-                        2|2.*|3.*|4.*|5.0|5.1|5.2)
-                        expensive_optimization_flag="-fno-expensive-optimizations"
-                        ;;
-                        *)
-                        expensive_optimization_flag=""
-                        ;;
-                    esac
-                fi
-
-                case $cpu in
-                    loongson3*)
-                        enable loongson3
-                        cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
-                    ;;
-                    loongson2e)
-                        enable loongson2
-                        cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
-                    ;;
-                    loongson2f)
-                        enable loongson2
-                        cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
-                    ;;
-                esac
-            ;;
-            *)
-                warn "unknown MIPS CPU"
-            ;;
-        esac
-
-    else
-        disable mipsdsp
-        disable mipsdspr2
-        # Disable DSP stuff for generic CPU, it can't be detected at runtime.
-        warn 'generic cpu selected'
-    fi
-
-elif enabled ppc; then
-
-    disable ldbrx
-
-    case $(tolower $cpu) in
-        601|ppc601|powerpc601)
-            cpuflags="-mcpu=601"
-            disable altivec
-        ;;
-        603*|ppc603*|powerpc603*)
-            cpuflags="-mcpu=603"
-            disable altivec
-        ;;
-        604*|ppc604*|powerpc604*)
-            cpuflags="-mcpu=604"
-            disable altivec
-        ;;
-        g3|75*|ppc75*|powerpc75*)
-            cpuflags="-mcpu=750"
-            disable altivec
-        ;;
-        g4|745*|ppc745*|powerpc745*)
-            cpuflags="-mcpu=7450"
-            disable vsx
-        ;;
-        74*|ppc74*|powerpc74*)
-            cpuflags="-mcpu=7400"
-            disable vsx
-        ;;
-        g5|970|ppc970|powerpc970)
-            cpuflags="-mcpu=970"
-            disable vsx
-        ;;
-        power[3-6]*)
-            cpuflags="-mcpu=$cpu"
-            disable vsx
-        ;;
-        power[7-9]*|power10)
-            cpuflags="-mcpu=$cpu"
-        ;;
-        cell)
-            cpuflags="-mcpu=cell"
-            enable ldbrx
-            disable vsx
-        ;;
-        e500mc)
-            cpuflags="-mcpu=e500mc"
-            disable altivec
-        ;;
-        e500v2)
-            cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
-            disable altivec
-            disable dcbzl
-        ;;
-        e500)
-            cpuflags="-mcpu=8540 -mhard-float"
-            disable altivec
-            disable dcbzl
-        ;;
-    esac
-
-elif enabled riscv; then
-
-    check_headers asm/hwprobe.h
-    check_headers sys/hwprobe.h
-
-    if test_cpp_condition stddef.h "__riscv_zbb"; then
-        enable fast_clz
-    fi
-    if test_cpp_condition stddef.h "__riscv_zfhmin"; then
-        enable fast_float16
-    fi
-
-elif enabled sparc; then
-
-    case $cpu in
-        cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
-            cpuflags="-mcpu=$cpu"
-        ;;
-        ultrasparc*|niagara[234])
-            cpuflags="-mcpu=$cpu"
-        ;;
-    esac
-
-elif enabled x86; then
-
-    case $cpu in
-        i[345]86|pentium)
-            cpuflags="-march=$cpu"
-            disable i686
-            disable mmx
-        ;;
-        # targets that do NOT support nopl and conditional mov (cmov)
-        pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
-            cpuflags="-march=$cpu"
-            disable i686
-        ;;
-        # targets that do support conditional mov but on which it's slow
-        pentium4|pentium4m|prescott|nocona)
-            cpuflags="-march=$cpu"
-            enable i686
-            disable fast_cmov
-        ;;
-        # everything else should support nopl and conditional mov (cmov)
-        *)
-            cpuflags="-march=$cpu"
-            enable i686
-            enable fast_cmov
-        ;;
-    esac
-
-else
-
-    if test_cpp_condition inttypes.h "UINTPTR_MAX >= UINT64_MAX"; then
-        enable fast_64bit
-    fi
-
-fi
-
-if [ "$cpu" != generic ]; then
-    add_allcflags $cpuflags
-    add_asflags $cpuflags
-    test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
-fi
-
-# compiler sanity check
-test_exec <<EOF
-int main(void){ return 0; }
-EOF
-if test "$?" != 0; then
-    echo "$cc is unable to create an executable file."
-    if test -z "$cross_prefix" && ! enabled cross_compile ; then
-        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
-        echo "Only do this if you know what cross compiling means."
-    fi
-    die "C compiler test failed."
-fi
-
-add_cppflags -D_ISOC11_SOURCE
-add_cxxflags -D__STDC_CONSTANT_MACROS
-check_cxxflags_cc -std=$stdcxx ctype.h "__cplusplus >= 201103L" ||
-    { check_cxxflags -std=c++11 && stdcxx="c++11" || { check_cxxflags -std=c++0x && stdcxx="c++0x"; }; }
-
-test_cxxflags_cc -std=$stdcxx ctype.h "__cplusplus >= 201703L" && enable cxx17
-
-# some compilers silently accept -std=c11, so we also need to check that the
-# version macro is defined properly
-check_cflags_cc -std=$stdc ctype.h "__STDC_VERSION__ >= 201112L" ||
-    { check_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" && stdc="c11" || die "Compiler lacks C11 support"; }
-
-test_cc <<EOF || die "Compiler lacks support for C11 static assertions"
-#include <assert.h>
-#include <stddef.h>
-struct Foo {
-    int a;
-    void *ptr;
-} obj;
-static_assert(offsetof(struct Foo, a) == 0,
-              "First element of struct does not have offset 0");
-_Static_assert(offsetof(struct Foo, ptr) >= offsetof(struct Foo, a) + sizeof(obj.a),
-               "elements not properly ordered in struct");
-EOF
-
-check_cppflags -D_FILE_OFFSET_BITS=64
-check_cppflags -D_LARGEFILE_SOURCE
-
-add_host_cppflags -D_ISOC11_SOURCE
-check_host_cflags_cc -std=$stdc ctype.h "__STDC_VERSION__ >= 201112L" ||
-    check_host_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" || die "Host compiler lacks C11 support"
-
-check_host_cflags -Wall
-check_host_cflags $host_cflags_speed
-
-check_64bit(){
-    arch32=$1
-    arch64=$2
-    expr=${3:-'sizeof(void *) > 4'}
-    test_code cc "" "int test[2*($expr) - 1]" &&
-        subarch=$arch64 || subarch=$arch32
-    enable $subarch
-}
-
-case "$arch" in
-    aarch64|ia64)
-        enabled shared && enable_weak pic
-    ;;
-    loongarch)
-        check_64bit loongarch32 loongarch64
-        enabled loongarch64 && disable loongarch32
-        enabled shared && enable_weak pic
-    ;;
-    mips)
-        check_64bit mips mips64 '_MIPS_SIM > 1'
-        enabled shared && enable_weak pic
-    ;;
-    parisc)
-        check_64bit parisc parisc64
-        enabled shared && enable_weak pic
-    ;;
-    ppc)
-        check_64bit ppc ppc64
-        enabled shared && enable_weak pic
-    ;;
-    riscv)
-        check_64bit riscv32 riscv64
-        enabled shared && enable_weak pic
-    ;;
-    s390)
-        check_64bit s390 s390x
-        enabled shared && enable_weak pic
-    ;;
-    sparc)
-        check_64bit sparc sparc64
-        enabled shared && enable_weak pic
-    ;;
-    x86)
-        check_64bit x86_32 x86_64
-        # Treat x32 as x64 for now. Note it also needs pic if shared
-        test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&
-            subarch=x86_64 && enable x86_64 && disable x86_32
-        if enabled x86_64; then
-            enabled shared && enable_weak pic
-            objformat=elf64
-        fi
-    ;;
-esac
-
-# OS specific
-case $target_os in
-    aix)
-        SHFLAGS=-shared
-        add_cppflags '-I\$(SRC_PATH)/compat/aix'
-        enabled shared && add_ldflags -Wl,-brtl
-        arflags='-Xany -r -c'
-        striptype=""
-        ;;
-    android)
-        disable symver
-        enable section_data_rel_ro
-        add_allcflags -fPIE
-        add_ldexeflags -fPIE -pie
-        SLIB_INSTALL_NAME='$(SLIBNAME)'
-        SLIB_INSTALL_LINKS=
-        SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
-        ;;
-    haiku)
-        prefix_default="/boot/common"
-        network_extralibs="-lnetwork"
-        host_extralibs=
-        ;;
-    sunos)
-        SHFLAGS='-shared -Wl,-h,$$(@F)'
-        enabled x86 && append SHFLAGS -mimpure-text
-        network_extralibs="-lsocket -lnsl"
-        add_cppflags -D__EXTENSIONS__
-        # When using suncc to build, the Solaris linker will mark
-        # an executable with each instruction set encountered by
-        # the Solaris assembler.  As our libraries contain their own
-        # guards for processor-specific code, instead suppress
-        # generation of the HWCAPS ELF section on Solaris x86 only.
-        enabled_all suncc x86 &&
-            echo "hwcap_1 = OVERRIDE;" > mapfile &&
-            add_ldflags -Wl,-M,mapfile
-        nm_default='nm -P -g'
-        striptype=""
-        version_script='-M'
-        VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
-        ;;
-    netbsd)
-        disable symver
-        enable section_data_rel_ro
-        oss_indev_extralibs="-lossaudio"
-        oss_outdev_extralibs="-lossaudio"
-        enabled gcc || check_ldflags -Wl,-zmuldefs
-        ;;
-    openbsd)
-        disable symver
-        enable section_data_rel_ro
-        striptype=""
-        SHFLAGS='-shared'
-        SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
-        SLIB_INSTALL_LINKS=
-        oss_indev_extralibs="-lossaudio"
-        oss_outdev_extralibs="-lossaudio"
-        ;;
-    dragonfly)
-        disable symver
-        ;;
-    freebsd)
-        enable section_data_rel_ro
-        ;;
-    bsd/os)
-        add_extralibs -lpoll -lgnugetopt
-        strip="strip -d"
-        ;;
-    darwin)
-        enabled ppc && add_asflags -force_cpusubtype_ALL
-        install_name_dir_default='$(SHLIBDIR)'
-        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
-        enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
-        strip="${strip} -x"
-        add_ldflags -Wl,-dynamic,-search_paths_first
-        check_allcflags -Werror=partial-availability
-        SLIBSUF=".dylib"
-        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
-        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
-        enabled x86_64 && objformat="macho64" || objformat="macho32"
-        enabled_any pic shared x86_64 ||
-            { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
-        check_headers dispatch/dispatch.h &&
-            add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
-        if test -n "$sysroot"; then
-            is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
-            is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
-        fi
-        version_script='-exported_symbols_list'
-        VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
-        # Workaround for Xcode 11 -fstack-check bug
-        if enabled clang; then
-            clang_version=$($cc -dumpversion)
-            test ${clang_version%%.*} -eq 11 && add_allcflags -fno-stack-check
-        fi
-
-        # Xcode Clang doesn't default to -fno-common while upstream llvm.org
-        # Clang (and GCC) do. This avoids linker warnings on Xcode 16.3 about
-        # "reducing alignment of section __DATA,__common from 0x8000 to 0x4000
-        # because it exceeds segment maximum alignment".
-        check_cflags -fno-common
-
-        ;;
-    msys*)
-        die "Native MSYS builds are discouraged, please use the MINGW environment."
-        ;;
-    mingw32*|mingw64*)
-        target_os=mingw32
-        LIBTARGET=i386
-        if enabled x86_64; then
-            LIBTARGET="i386:x86-64"
-        elif enabled arm; then
-            LIBTARGET="arm"
-        elif enabled aarch64; then
-            LIBTARGET="arm64"
-        fi
-        if enabled shared; then
-            # Cannot build both shared and static libs when using dllimport.
-            disable static
-        fi
-        ! enabled small && test_cmd $windres --version && enable gnu_windres
-        enabled x86_32 && check_ldflags -Wl,--large-address-aware
-        add_cppflags -DWIN32_LEAN_AND_MEAN
-        shlibdir_default="$bindir_default"
-        SLIBPREF=""
-        SLIBSUF=".dll"
-        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
-        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
-        if test_cmd lib.exe -list; then
-            SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
-            if enabled x86_64; then
-                LIBTARGET=x64
-            fi
-        else
-            SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
-        fi
-        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
-        SLIB_INSTALL_LINKS=
-        SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
-        SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
-        SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
-        SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'
-        enabled x86_64 && objformat="win64" || objformat="win32"
-        dlltool="${cross_prefix}dlltool"
-        ranlib=:
-        enable dos_paths
-        check_ldflags -Wl,--nxcompat,--dynamicbase
-        # Lets work around some stupidity in binutils.
-        # ld will strip relocations from executables even though we need them
-        # for dynamicbase (ASLR).  Using -pie does retain the reloc section
-        # however ld then forgets what the entry point should be (oops) so we
-        # have to manually (re)set it.
-        if enabled x86_32; then
-            disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
-        elif enabled x86_64; then
-            disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
-            check_ldflags -Wl,--high-entropy-va # binutils 2.25
-            # Set image base >4GB for extra entropy with HEASLR
-            add_ldexeflags -Wl,--image-base,0x140000000
-            append SHFLAGS -Wl,--image-base,0x180000000
-        fi
-        ;;
-    win32|win64)
-        disable symver
-        LIBSUF=".lib"
-        if enabled shared; then
-            # Cannot build both shared and static libs with MSVC or icl.
-            disable static
-            LIBSUF="-static.lib"
-        fi
-        ! enabled small && test_cmd $windres --version && enable gnu_windres
-        enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
-        add_cppflags -DWIN32_LEAN_AND_MEAN
-        shlibdir_default="$bindir_default"
-        LIBPREF=""
-        SLIBPREF=""
-        SLIBSUF=".dll"
-        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
-        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
-        SLIB_CREATE_DEF_CMD='LDFLAGS="$(LDFLAGS)" EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
-        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
-        SLIB_INSTALL_LINKS=
-        SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
-        SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
-        if test $ld_type = "clang"; then
-            SHFLAGS='-Wl,-dll -Wl,-def:$$(@:$(SLIBSUF)=.def) -Wl,-implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
-        else
-            SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
-        fi
-        enabled x86_64 && objformat="win64" || objformat="win32"
-        ranlib=:
-        enable dos_paths
-        ;;
-    cygwin*)
-        target_os=cygwin
-        shlibdir_default="$bindir_default"
-        SLIBPREF="cyg"
-        SLIBSUF=".dll"
-        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
-        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
-        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
-        SLIB_INSTALL_LINKS=
-        SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
-        SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
-        enabled x86_64 && objformat="win64" || objformat="win32"
-        enable dos_paths
-        ! enabled small && test_cmd $windres --version && enable gnu_windres
-        add_cppflags -DWIN32_LEAN_AND_MEAN
-        add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
-        ;;
-    *-dos|freedos|opendos)
-        network_extralibs="-lsocket"
-        objformat="coff"
-        enable dos_paths
-        ;;
-    linux)
-        enable section_data_rel_ro
-        enabled_any arm aarch64 && enable_weak linux_perf
-        ;;
-    irix*)
-        target_os=irix
-        ranlib="echo ignoring ranlib"
-        ;;
-    os/2*)
-        strip="lxlite -CS"
-        striptype=""
-        objformat="aout"
-        add_cppflags -D_GNU_SOURCE
-        add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
-        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
-        LIBSUF="_s.a"
-        SLIBPREF=""
-        SLIBSUF=".dll"
-        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
-        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
-        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
-            echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
-            echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
-            echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
-            emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
-        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
-            emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
-        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
-        SLIB_INSTALL_LINKS=
-        SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
-        enable dos_paths
-        enable_weak os2threads
-        ;;
-    gnu/kfreebsd)
-        add_cppflags -D_BSD_SOURCE
-        ;;
-    gnu)
-        ;;
-    qnx)
-        add_cppflags -D_QNX_SOURCE
-        network_extralibs="-lsocket"
-        ;;
-    symbian)
-        SLIBSUF=".dll"
-        enable dos_paths
-        add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
-        add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
-        add_ldflags -Wl,--target1-abs,--no-undefined \
-                    -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
-                    -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
-        add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
-                      -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
-                      -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
-        ;;
-    minix)
-        ;;
-    none)
-        ;;
-    *)
-        die "Unknown OS '$target_os'."
-        ;;
-esac
-
-# test if creating links works
-link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
-link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
-mkdir "$link_dest"
-$ln_s "$link_dest" "$link_name"
-touch "$link_dest/test_file"
-if [ "$source_path" != "." ] && [ "$source_path" != "src" ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
-    # create link to source path
-    [ -e src ] && rm src
-    $ln_s "$source_path" src
-    source_link=src
-else
-    # creating directory links doesn't work
-    # fall back to using the full source path
-    source_link="$source_path"
-fi
-# cleanup
-rm -r "$link_dest"
-rm -r "$link_name"
-
-# determine libc flavour
-
-probe_libc(){
-    pfx=$1
-    pfx_no_=${pfx%_}
-    # uclibc defines __GLIBC__, so it needs to be checked before glibc.
-    if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
-        eval ${pfx}libc_type=uclibc
-        add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
-    elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then
-        eval ${pfx}libc_type=glibc
-        add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
-    # MinGW headers can be installed on Cygwin, so check for newlib first.
-    elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
-        eval ${pfx}libc_type=newlib
-        add_${pfx}cflags -U__STRICT_ANSI__
-        add_${pfx}cppflags -D_XOPEN_SOURCE=600
-    # MinGW64 is backwards compatible with MinGW32, so check for it first.
-    elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
-        eval ${pfx}libc_type=mingw64
-        if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
-            add_compat msvcrt/snprintf.o
-            add_allcflags "-include $source_path/compat/msvcrt/snprintf.h"
-        fi
-        add_${pfx}cflags -U__STRICT_ANSI__
-        if ! test_${pfx}cpp_condition crtdefs.h "defined(_UCRT)"; then
-            add_${pfx}cppflags -D__USE_MINGW_ANSI_STDIO=1
-        fi
-        test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
-            add_${pfx}cppflags -D_WIN32_WINNT=0x0600
-        add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
-    elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
-         test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
-        eval ${pfx}libc_type=mingw32
-        test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
-            (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
-            die "ERROR: MinGW32 runtime version must be >= 3.15."
-        add_${pfx}cflags -U__STRICT_ANSI__
-        if ! test_${pfx}cpp_condition crtdefs.h "defined(_UCRT)"; then
-            add_${pfx}cppflags -D__USE_MINGW_ANSI_STDIO=1
-        fi
-        test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
-            add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
-        test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
-            add_${pfx}cppflags -D_WIN32_WINNT=0x0600
-        add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
-    elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
-        eval ${pfx}libc_type=msvcrt
-        if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
-            if [ "$pfx" = host_ ]; then
-                add_host_cppflags -Dsnprintf=_snprintf
-            else
-                add_compat strtod.o strtod=avpriv_strtod
-                add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
-                                             _snprintf=avpriv_snprintf  \
-                                             vsnprintf=avpriv_vsnprintf
-            fi
-        fi
-        add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
-        # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
-        # 0x601 by default unless something else is set by the user.
-        # This can easily lead to us detecting functions only present
-        # in such new versions and producing binaries requiring windows 7.0.
-        # Therefore explicitly set the default to Vista unless the user has
-        # set something else on the command line.
-        # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
-        # family. For these cases, configure is free to use any functions
-        # found in the SDK headers by default. (Alternatively, we could force
-        # _WIN32_WINNT to 0x0602 in that case.)
-        test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
-            { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }
-#ifdef WINAPI_FAMILY
-#include <winapifamily.h>
-#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
-#error not desktop
-#endif
-#endif
-EOF
-        if [ "$pfx" = "" ]; then
-            check_func strtoll || add_allcflags -Dstrtoll=_strtoi64
-            check_func strtoull || add_allcflags -Dstrtoull=_strtoui64
-        fi
-    elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
-        eval ${pfx}libc_type=klibc
-    elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
-        eval ${pfx}libc_type=bionic
-    elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
-        eval ${pfx}libc_type=solaris
-        add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
-    elif test_${pfx}cpp_condition sys/version.h "defined __DJGPP__"; then
-        eval ${pfx}libc_type=djgpp
-        add_cppflags -U__STRICT_ANSI__
-        add_allcflags "-include $source_path/compat/djgpp/math.h"
-        add_compat djgpp/math.o
-    fi
-    test_${pfx}cc <<EOF
-#include <time.h>
-void *v = localtime_r;
-EOF
-test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
-#include <time.h>
-void *v = localtime_r;
-EOF
-
-    eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
-}
-
-probe_libc
-probe_libc host_
-
-# hacks for compiler/libc/os combinations
-
-case $libc_type in
-    bionic)
-        add_compat strtod.o strtod=avpriv_strtod
-        ;;
-esac
-
-check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
-    add_cppflags '-I\$(SRC_PATH)/compat/float'
-
-test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
-
-set_default libdir
-: ${shlibdir_default:="$libdir"}
-: ${pkgconfigdir_default:="$libdir/pkgconfig"}
-
-set_default $PATHS_LIST
-set_default nm
-
-disabled optimizations || enabled ossfuzz || echo "$CFLAGS" | grep -q -- '-fsanitize=' || check_allcflags -fomit-frame-pointer
-
-enable_weak_pic() {
-    disabled pic && return
-    enable pic
-    add_cppflags -DPIC
-    case "$target_os" in
-    mingw*|cygwin*|win*)
-        ;;
-    *)
-        add_allcflags -fPIC
-        add_asflags -fPIC
-        ;;
-    esac
-}
-
-enabled pic && enable_weak_pic
-
-test_cc <<EOF || die "Symbol mangling check failed."
-int ff_extern;
-EOF
-sym=$($nm $TMPO | awk '/[ \t]+[^ \t]?ff_extern$/{ print substr($0, match($0, /[^ \t]?ff_extern$/)) }')
-extern_prefix=${sym%%ff_extern*}
-
-log "Symbol prefix detected as: '${extern_prefix}'"
-
-! disabled inline_asm && check_inline_asm inline_asm '"" ::'
-
-check_cc pragma_deprecated "" '_Pragma("GCC diagnostic push") _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
-
-test_cpp_condition stdlib.h "defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)" && enable bigendian
-
-check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"
-
-if ! enabled ppc64 || enabled bigendian; then
-    disable vsx
-fi
-
-check_gas() {
-    log "check_gas using '$as' as AS"
-    # :vararg is used on aarch64, arm and ppc altivec
-    check_as vararg "
-.macro m n, y:vararg=0
-\n: .int \y
-.endm
-m x" || return 1
-    # .altmacro is only used in arm asm
-    ! enabled arm || check_as gnu_as ".altmacro"
-}
-
-if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
-    nogas=:
-    enabled_any arm aarch64 && nogas=die
-    enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
-    as_noop=-v
-
-    case $as_type in
-        arm*) gaspp_as_type=armasm; as_noop=-h ;;
-        gcc)  gaspp_as_type=gas ;;
-        *)    gaspp_as_type=$as_type ;;
-    esac
-
-    [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
-
-    test "${as#*gas-preprocessor.pl}" != "$as" ||
-    test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
-        gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
-
-    if ! check_gas ; then
-        as=${gas:=$as}
-        check_gas || \
-            $nogas "GNU assembler not found, install/update gas-preprocessor"
-    fi
-
-    check_as as_func ".func test
-                      .endfunc"
-fi
-
-check_inline_asm inline_asm_labels '"1:\n"'
-
-check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
-
-if enabled aarch64; then
-    as_arch_level="armv8-a"
-    check_as as_arch_directive ".arch $as_arch_level"
-    if enabled as_arch_directive; then
-        # Check for higher .arch levels. We only need armv8.2-a in order to
-        # enable the extensions we want below - we primarily want to control
-        # them via .arch_extension. However:
-        #
-        # Clang before version 17 (Xcode versions up to and including 15.0)
-        # didn't support controlling the dotprod/i8mm extensions via
-        # .arch_extension; thus try to enable them via the .arch level as well.
-        for level in armv8.2-a armv8.4-a armv8.6-a; do
-            check_arch_level $level
-        done
-        # Clang before version 17 (Xcode versions up to and including 15.0)
-        # also had a bug (https://github.com/llvm/llvm-project/issues/32220)
-        # causing a plain ".arch <level>" to not have any effect unless it
-        # had an extra "+<feature>" included - but it was activated on the next
-        # ".arch_extension" directive. Check if we can include "+fp" as dummy
-        # feature to make the .arch directive behave as expected and take
-        # effect right away.
-        check_arch_level "${as_arch_level}+fp"
-    fi
-
-    enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
-    # internal assembler in clang 3.3 does not support this instruction
-    enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
-
-    archext_list="arm_crc dotprod i8mm sve sve2 sme"
-    enabled arm_crc && check_archext_name_insn arm_crc crc 'crc32x w0, w0, x0'
-    enabled dotprod && check_archext_insn dotprod 'udot v0.4s, v0.16b, v0.16b'
-    enabled i8mm    && check_archext_insn i8mm    'usdot v0.4s, v0.16b, v0.16b'
-    enabled sve     && check_archext_insn sve     'whilelt p0.s, x0, x1'
-    enabled sve2    && check_archext_insn sve2    'sqrdmulh z0.s, z0.s, z0.s'
-    enabled sme     && check_archext_insn sme     'smstart' 'cntb x0'
-
-    # Disable the main feature (e.g. HAVE_NEON) if neither inline nor external
-    # assembly support the feature out of the box. Skip this for the features
-    # checked with check_archext_insn above, as that function takes care of
-    # updating all the variables as necessary.
-    for v in $ARCH_EXT_LIST_ARM; do
-        is_in $v $archext_list && continue
-        enabled_any ${v}_external ${v}_inline || disable $v
-    done
-
-elif enabled arm; then
-
-    enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"
-    test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb
-float func(float a, float b){ return a+b; }
-EOF
-    enabled thumb && check_cflags -mthumb || check_cflags -marm
-
-    if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then
-        :
-    elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
-        :
-    elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
-        case "${cross_prefix:-$cc}" in
-            *hardfloat*) enable vfp_args; fpabi=vfp ;;
-            *) check_ld "cc" vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;
-__asm__ (".eabi_attribute 28, 1");
-int main(void) { return 0; }
-EOF
-        esac
-        warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
-    fi
-
-    # Test for various instruction sets, testing support both in inline and
-    # external assembly. This sets the ${v}_inline or ${v}_external flags
-    # if the instruction can be used unconditionally in either inline or
-    # external assembly. This means that if the ${v}_external feature is set,
-    # that feature can be used unconditionally in various support macros
-    # anywhere in external assembly, in any function.
-    enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
-    enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
-    enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
-    enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
-    enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
-    enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
-    enabled setend  && check_insn setend  'setend be'
-
-    # If neither inline nor external assembly can use the feature by default,
-    # disable the main unsuffixed feature (e.g. HAVE_NEON).
-    #
-    # For targets that support runtime CPU feature detection, don't disable
-    # the main feature flag - there we assume that all supported toolchains
-    # can assemble code for all instruction set features (e.g. NEON) with
-    # suitable assembly flags (such as ".fpu neon"); we don't check
-    # specifically that they really do.
-    [ $target_os = linux ] || [ $target_os = android ] ||
-        map 'enabled_any ${v}_external ${v}_inline || disable $v' \
-            $ARCH_EXT_LIST_ARM
-
-    check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
-
-    check_as as_arch_directive ".arch armv7-a"
-    check_as as_dn_directive   "ra .dn d0.i16"
-    check_as as_fpu_directive  ".fpu neon"
-
-    # llvm's integrated assembler supports .object_arch from llvm 3.5
-    [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
-        check_as as_object_arch ".object_arch armv4"
-
-    # MS armasm fails to assemble our PIC constructs
-    [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
-
-elif enabled mips; then
-
-    # Check toolchain ISA level
-    if enabled mips64; then
-        enabled mips64r6 && check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' &&
-            disable mips64r2
-
-        enabled mips64r2 && check_inline_asm mips64r2 '"dext $0, $0, 0, 1"'
-
-        disable mips32r6 && disable mips32r5 && disable mips32r2
-    else
-        enabled mips32r6 && check_inline_asm mips32r6 '"aui $0, $0, 0"' &&
-            disable mips32r5 && disable mips32r2
-
-        enabled mips32r5 && check_inline_asm mips32r5 '"eretnc"'
-        enabled mips32r2 && check_inline_asm mips32r2 '"ext $0, $0, 0, 1"'
-
-        disable mips64r6 && disable mips64r5 && disable mips64r2
-    fi
-
-    enabled mipsfpu && check_inline_asm mipsfpu '"cvt.d.l $f0, $f2"'
-    enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
-
-    enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
-    enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
-
-    # MSA can be detected at runtime so we supply extra flags here
-    enabled mipsfpu && enabled msa && check_inline_asm msa '"addvi.b $w0, $w1, 1"' '-mmsa' && append MSAFLAGS '-mmsa'
-
-    # loongson2 have no switch cflag so we can only probe toolchain ability
-    enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"' && disable loongson3
-
-    # loongson3 is paired with MMI
-    enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"' '-mloongson-ext' && append MMIFLAGS '-mloongson-ext'
-
-    # MMI can be detected at runtime too
-    enabled mmi && check_inline_asm mmi '"pxor $f0, $f0, $f0"' '-mloongson-mmi' && append MMIFLAGS '-mloongson-mmi'
-
-    if enabled bigendian && enabled msa; then
-        disable msa
-    fi
-
-elif enabled parisc; then
-
-    if enabled gcc; then
-        case $($cc -dumpversion) in
-            4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
-        esac
-    fi
-
-elif enabled ppc; then
-
-    check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
-    check_inline_asm ibm_asm   '"add 0, 0, 0"'
-    check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
-    check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
-
-    if enabled altivec; then
-        check_cflags -maltivec -mabi=altivec
-
-        # check if our compiler supports Motorola AltiVec C API
-        check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };
-                                    vector signed int v2 = (vector signed int) { 1 };
-                                    v1 = vec_add(v1, v2);"
-
-        enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
-    fi
-
-    if enabled vsx; then
-        check_cflags -mvsx &&
-        check_cc vsx altivec.h "int v[4] = { 0 };
-                                vector signed int v1 = vec_vsx_ld(0, v);"
-    fi
-
-    if enabled power8; then
-        check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
-    fi
-
-    if enabled altivec; then
-        check_cc vec_xl altivec.h "const unsigned char *y1i = { 0 };
-                                   vector unsigned char y0 = vec_xl(0, y1i);"
-    fi
-
-elif enabled riscv; then
-
-    enabled rv && check_inline_asm rv '".option arch, +zbb\nrev8 t0, t1"'
-    enabled rvv && check_inline_asm rvv '".option arch, +v\nvsetivli zero, 0, e8, m1, ta, ma"'
-    enabled rv_zicbop && check_inline_asm rv_zicbop '".option arch, +zicbop\nprefetch.r 64(a0)"'
-    enabled rv_zvbb && check_inline_asm rv_zvbb '".option arch, +zvbb\nvclz.v v0, v8"'
-
-elif enabled wasm; then
-
-    enabled simd128 && check_cc simd128 wasm_simd128.h  "v128_t v = wasm_v128_load(0);"
-
-elif enabled x86; then
-
-    check_builtin rdtsc    intrin.h   "__rdtsc()"
-    check_builtin mm_empty mmintrin.h "_mm_empty()"
-
-    # check whether EBP is available on x86
-    # As 'i' is stored on the stack, this program will crash
-    # if the base pointer is used to access it because the
-    # base pointer is cleared in the inline assembly code.
-    check_exec_crash <<EOF && enable ebp_available
-volatile int i=0;
-__asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
-return i;
-EOF
-
-    # check whether EBX is available on x86
-    check_inline_asm ebx_available '""::"b"(0)' &&
-        check_inline_asm ebx_available '"":::"%ebx"'
-
-    # check whether xmm clobbers are supported
-    check_inline_asm xmm_clobbers '"":::"%xmm0"'
-
-    check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
-        check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
-
-    # check whether binutils is new enough to compile SSSE3/MMXEXT
-    enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
-    enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
-
-    probe_x86asm(){
-        x86asmexe_probe=$1
-        if test_cmd $x86asmexe_probe -v; then
-            x86asmexe=$x86asmexe_probe
-            x86asm_debug="-g -F dwarf"
-            X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
-        fi
-        check_x86asm x86asm "movbe ecx, [5]"
-    }
-
-    if ! disabled_any asm mmx x86asm; then
-        disable x86asm
-        for program in $x86asmexe nasm; do
-            probe_x86asm $program && break
-        done
-        disabled x86asm && die "nasm not found or too old. Please install/update nasm or use --disable-x86asm for a build without hand-optimized assembly."
-        X86ASMFLAGS="-f $objformat"
-        test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
-        case "$objformat" in
-            elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
-        esac
-
-        enabled avx512    && check_x86asm avx512_external    "vmovdqa32 [eax]{k1}{z}, zmm0"
-        enabled avx512icl && check_x86asm avx512icl_external "vpdpwssds zmm31{k1}{z}, zmm29, zmm28"
-        enabled avx2      && check_x86asm avx2_external      "vextracti128 xmm0, ymm0, 0"
-        enabled xop       && check_x86asm xop_external       "vpmacsdd xmm0, xmm1, xmm2, xmm3"
-        enabled fma4      && check_x86asm fma4_external      "vfmaddps ymm0, ymm1, ymm2, ymm3"
-    fi
-
-    case "$cpu" in
-        athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
-            disable fast_clz
-        ;;
-    esac
-
-    check_cc intrinsics_sse2 emmintrin.h "__m128i test = _mm_setzero_si128()"
-
-elif enabled loongarch; then
-    enabled lsx && check_inline_asm lsx '"vadd.b $vr0, $vr1, $vr2"' '-mlsx' && append LSXFLAGS '-mlsx'
-    enabled lasx && check_inline_asm lasx '"xvadd.b $xr0, $xr1, $xr2"' '-mlasx' && append LASXFLAGS '-mlasx'
-fi
-
-check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"
-
-check_ldflags -Wl,--as-needed
-check_ldflags -Wl,-z,noexecstack
-if [ $target_os = "darwin" ]; then
-    check_ldflags -Wl,-no_warn_duplicate_libraries
-fi
-
-if ! disabled network; then
-    check_func getaddrinfo $network_extralibs
-    check_func inet_aton $network_extralibs
-
-    check_type netdb.h "struct addrinfo"
-    check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
-    check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
-    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
-    check_type poll.h "struct pollfd"
-    check_type netinet/sctp.h "struct sctp_event_subscribe"
-    check_struct "sys/socket.h" "struct msghdr" msg_flags
-    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
-    check_type netinet/in.h "struct sockaddr_in6"
-    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
-    check_type "sys/types.h sys/socket.h" socklen_t
-
-    # Prefer arpa/inet.h over winsock2
-    if check_headers arpa/inet.h ; then
-        check_func closesocket
-    elif check_headers winsock2.h ; then
-        check_func_headers winsock2.h closesocket -lws2 &&
-            network_extralibs="-lws2" ||
-        { check_func_headers winsock2.h closesocket -lws2_32 &&
-            network_extralibs="-lws2_32"; } || disable winsock2_h network
-        check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
-
-        check_type ws2tcpip.h socklen_t
-        check_type ws2tcpip.h "struct addrinfo"
-        check_type ws2tcpip.h "struct group_source_req"
-        check_type ws2tcpip.h "struct ip_mreq_source"
-        check_type ws2tcpip.h "struct ipv6_mreq"
-        check_type winsock2.h "struct pollfd"
-        check_struct winsock2.h "struct sockaddr" sa_len
-        check_type ws2tcpip.h "struct sockaddr_in6"
-        check_type ws2tcpip.h "struct sockaddr_storage"
-    else
-        disable network
-    fi
-fi
-
-check_builtin MemoryBarrier windows.h "MemoryBarrier()"
-check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
-check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
-
-check_builtin float16 "" "_Float16 f16var"
-if enabled float16; then
-    if enabled x86; then
-        test_cpp_condition stddef.h "defined(__F16C__)" && enable fast_float16
-    elif enabled arm || enabled aarch64; then
-        enable fast_float16
-    fi
-fi
-
-case "$custom_allocator" in
-    "")
-    ;;
-    jemalloc)
-        test -n "$malloc_prefix" ||
-            malloc_prefix=$($pkg_config --variable=jemalloc_prefix $pkg_config_flags jemalloc 2>/dev/null)
-        require_pkg_config custom_allocator jemalloc jemalloc/jemalloc.h ${malloc_prefix}malloc
-    ;;
-    tcmalloc)
-        require_pkg_config custom_allocator libtcmalloc gperftools/tcmalloc.h tc_malloc
-        malloc_prefix=tc_
-    ;;
-    *)
-        require_pkg_config custom_allocator "$custom_allocator" stdlib.h malloc
-    ;;
-esac
-
-if test -n "$custom_allocator"; then
-    add_extralibs "$custom_allocator_extralibs"
-fi
-
-# Unlike other feature flags or libraries, spirv_library is not defined
-# within any of our predefined categories of components.
-# It gets defined if either libshaderc or libglslang check succeeds.
-# As such, its in a state of neither being explicitly enabled, nor
-# explicitly disabled, but even in this state, being mentioned in
-# _deps results in it always passing.
-# Disable it explicitly to fix this.
-disable spirv_library
-
-check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
-check_func  ${malloc_prefix}memalign            && enable memalign
-check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
-
-check_func  access
-check_func_headers stdlib.h arc4random_buf
-check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt
-check_func  fcntl
-check_func  fork
-check_func  gethrtime
-check_func  getopt
-check_func  getrusage
-check_func  gettimeofday
-check_func  isatty
-check_func  mkstemp
-check_func  mmap
-check_func  mprotect
-# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
-check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
-check_func_headers sys/prctl.h prctl
-check_func  sched_getaffinity
-check_func  setrlimit
-check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
-check_func  strerror_r
-check_func  sysconf
-check_func  sysctl
-check_func  tempnam
-check_func  usleep
-
-check_func_headers conio.h kbhit
-check_func_headers io.h setmode
-check_func_headers lzo/lzo1x.h lzo1x_999_compress
-check_func_headers mach/mach_time.h mach_absolute_time
-check_func_headers stdlib.h getenv
-check_func_headers sys/stat.h lstat
-check_func_headers sys/auxv.h getauxval
-check_func_headers sys/auxv.h elf_aux_info
-check_func_headers sys/sysctl.h sysctlbyname
-
-check_func_headers windows.h GetModuleHandle
-check_func_headers windows.h GetProcessAffinityMask
-check_func_headers windows.h GetProcessTimes
-check_func_headers windows.h GetStdHandle
-check_func_headers windows.h GetSystemTimeAsFileTime
-check_func_headers windows.h LoadLibrary
-check_func_headers windows.h MapViewOfFile
-check_func_headers windows.h PeekNamedPipe
-check_func_headers windows.h SetConsoleTextAttribute
-check_func_headers windows.h SetConsoleCtrlHandler
-check_func_headers windows.h SetDllDirectory
-check_func_headers windows.h Sleep
-check_func_headers windows.h VirtualAlloc
-check_func_headers glob.h glob
-
-if enabled xlib; then
-    check_pkg_config xlib_x11 x11 "X11/Xlib.h" XPending ||
-    check_lib xlib_x11 "X11/Xlib.h" XPending -lX11 ||
-        disable xlib
-
-    check_pkg_config xlib_xext xext "X11/Xlib.h X11/extensions/XShm.h" XShmAttach ||
-    check_lib xlib_xext "X11/Xlib.h X11/extensions/XShm.h" XShmAttach -lXext ||
-        disable xlib
-
-    check_pkg_config xlib_xv xv "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute ||
-    check_lib xlib_xv "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv ||
-        disable xlib
-fi
-
-check_headers direct.h
-check_headers dirent.h
-check_headers dxgidebug.h
-check_headers dxva.h
-check_headers dxva2api.h -D_WIN32_WINNT=0x0600
-check_headers io.h
-enabled libdrm &&
-    check_headers linux/dma-buf.h
-
-check_headers linux/perf_event.h
-check_headers malloc.h
-check_headers mftransform.h
-check_headers net/udplite.h
-check_headers poll.h
-check_headers pthread_np.h
-check_headers sys/param.h
-check_headers sys/resource.h
-check_headers sys/select.h
-check_headers sys/time.h
-check_headers sys/un.h
-check_headers termios.h
-check_headers unistd.h
-check_headers valgrind/valgrind.h
-check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
-check_func_headers VideoToolbox/VideoToolbox.h VTDecompressionSessionDecodeFrame -framework VideoToolbox
-check_func_headers VideoToolbox/VideoToolbox.h VTPixelTransferSessionCreate -framework VideoToolbox
-check_func_headers VideoToolbox/VideoToolbox.h VTPixelRotationSessionCreate -framework VideoToolbox
-check_headers windows.h
-check_headers asm/types.h
-
-# it seems there are versions of clang in some distros that try to use the
-# gcc headers, which explodes for stdatomic
-# so we also check that atomics actually work here
-#
-# some configurations also require linking to libatomic, so try
-# both with -latomic and without
-for LATOMIC in "-latomic" ""; do
-    check_builtin stdatomic stdatomic.h                                \
-        "atomic_int foo, bar = -1; atomic_store(&foo, 0); foo += bar"  \
-        $LATOMIC && eval stdatomic_extralibs="\$LATOMIC" && break
-done
-
-check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32
-check_lib bcrypt   "windows.h bcrypt.h"   BCryptGenRandom      -lbcrypt &&
-    check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"
-check_lib ole32    "windows.h objbase.h"  CoTaskMemFree        -lole32
-check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
-check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
-
-check_lib android android/native_window.h ANativeWindow_acquire -landroid
-check_lib mediandk "stdint.h media/NdkMediaFormat.h" AMediaFormat_new -lmediandk
-check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk
-
-enabled appkit       && check_apple_framework AppKit
-enabled audiotoolbox && check_apple_framework AudioToolbox
-enabled avfoundation && check_apple_framework AVFoundation
-enabled coreimage    && check_apple_framework CoreImage
-enabled metal        && check_apple_framework Metal
-enabled videotoolbox && check_apple_framework VideoToolbox
-
-check_apple_framework CoreFoundation
-check_apple_framework CoreMedia
-check_apple_framework CoreVideo
-check_apple_framework CoreAudio
-
-enabled audiotoolbox && {
-    check_type AudioToolbox/AudioToolbox.h AudioObjectPropertyAddress
-}
-
-enabled avfoundation && {
-    disable coregraphics applicationservices
-    check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||
-    check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"
-    check_objc_class AVFoundation/AVFoundation.h AVCaptureSession
-}
-
-enabled videotoolbox && {
-    check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
-    check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"
-    check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVCWithAlpha "-framework CoreMedia"
-    check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_VP9 "-framework CoreMedia"
-    check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_AV1 "-framework CoreMedia"
-    check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange "-framework CoreVideo"
-    check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_422YpCbCr8BiPlanarVideoRange "-framework CoreVideo"
-    check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_422YpCbCr10BiPlanarVideoRange "-framework CoreVideo"
-    check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_422YpCbCr16BiPlanarVideoRange "-framework CoreVideo"
-    check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_444YpCbCr8BiPlanarVideoRange "-framework CoreVideo"
-    check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_444YpCbCr10BiPlanarVideoRange "-framework CoreVideo"
-    check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_444YpCbCr16BiPlanarVideoRange "-framework CoreVideo"
-    check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ "-framework CoreVideo"
-    check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_ITU_R_2100_HLG "-framework CoreVideo"
-    check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_Linear "-framework CoreVideo"
-    check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferYCbCrMatrix_ITU_R_2020 "-framework CoreVideo"
-    check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 "-framework CoreVideo"
-    check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_ITU_R_2020 "-framework CoreVideo"
-    check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_SMPTE_ST_428_1 "-framework CoreVideo"
-    check_func_headers VideoToolbox/VTCompressionProperties.h kVTQPModulationLevel_Default "-framework CoreVideo"
-}
-
-enabled metal && test_cmd $metalcc -v || disable metal
-
-check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
-
-check_type "windows.h dxva.h" "DXVA_PicParams_AV1" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
-check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
-check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
-check_type "windows.h dxgi1_2.h" "DXGI_OUTDUPL_FRAME_INFO"
-check_type "windows.h dxgi1_2.h" "IDXGIOutput1"
-check_type "windows.h dxgi1_5.h" "IDXGIOutput5"
-check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
-check_type "windows.h d3d11.h" "ID3D11VideoContext"
-check_type "windows.h d3d12.h" "ID3D12Device"
-check_type "windows.h d3d12video.h" "ID3D12VideoDecoder"
-check_type "windows.h d3d12video.h" "ID3D12VideoEncoder"
-check_type "windows.h d3d12video.h" "ID3D12VideoProcessor"
-check_type "windows.h d3d12video.h" "ID3D12VideoMotionEstimator"
-test_code cc "windows.h d3d12video.h" "D3D12_FEATURE_VIDEO feature = D3D12_FEATURE_VIDEO_ENCODER_CODEC" && \
-test_code cc "windows.h d3d12video.h" "D3D12_FEATURE_DATA_VIDEO_ENCODER_RESOURCE_REQUIREMENTS req" && enable d3d12_encoder_feature
-test_code cc "windows.h d3d12video.h" "D3D12_VIDEO_ENCODER_CODEC c = D3D12_VIDEO_ENCODER_CODEC_AV1; (void)c;" && enable d3d12va_av1_headers
-test_code cc "windows.h d3d12video.h" "D3D12_FEATURE_DATA_VIDEO_ENCODER_INTRA_REFRESH_MODE check = { 0 };" && enable d3d12_intra_refresh
-test_code cc "windows.h d3d12video.h" "D3D12_VIDEO_ENCODER_MOTION_ESTIMATION_PRECISION_MODE m = D3D12_VIDEO_ENCODER_MOTION_ESTIMATION_PRECISION_MODE_EIGHTH_PIXEL; (void)m;" && enable d3d12va_me_precision_eighth_pixel
-test_code cc "windows.h d3d12video.h" "D3D12_FEATURE_DATA_VIDEO_MOTION_ESTIMATOR check = { 0 };" && enable d3d12_motion_estimator
-check_type "windows.h" "DPI_AWARENESS_CONTEXT" -D_WIN32_WINNT=0x0A00
-check_type "windows.h security.h schnlsp.h" SecPkgContext_KeyingMaterialInfo -DSECURITY_WIN32
-check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
-check_func_headers mfapi.h MFCreateAlignedMemoryBuffer -lmfplat
-check_type "windows.h windows.graphics.capture.h" __x_ABI_CWindows_CGraphics_CCapture_CIGraphicsCaptureSession3 -D_WIN32_WINNT=0x0A00 -DWINDOWS_FOUNDATION_UNIVERSALAPICONTRACT_VERSION=0x130000 -DCOBJMACROS
-check_type "windows.h windows.graphics.capture.h" __x_ABI_CWindows_CGraphics_CCapture_CIGraphicsCaptureSession5 -D_WIN32_WINNT=0x0A00 -DWINDOWS_FOUNDATION_UNIVERSALAPICONTRACT_VERSION=0x130000 -DCOBJMACROS
-check_type "windows.h windows.graphics.capture.interop.h" IGraphicsCaptureItemInterop -D_WIN32_WINNT=0x0A00 -DWINDOWS_FOUNDATION_UNIVERSALAPICONTRACT_VERSION=0x130000 -DCOBJMACROS
-check_type "windows.h windows.graphics.directx.direct3d11.interop.h" IDirect3DDxgiInterfaceAccess -D_WIN32_WINNT=0x0A00 -DWINDOWS_FOUNDATION_UNIVERSALAPICONTRACT_VERSION=0x130000 -DCOBJMACROS
-
-check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
-check_type "vdpau/vdpau.h" "VdpPictureInfoVP9"
-check_type "vdpau/vdpau.h" "VdpPictureInfoAV1"
-
-if [ -z "$nvccflags" ]; then
-    nvccflags=$nvccflags_default
-fi
-
-nvccflags="$nvccflags -std=c++11"
-
-if enabled x86_64 || enabled ppc64 || enabled aarch64; then
-    nvccflags="$nvccflags -m64"
-else
-    nvccflags="$nvccflags -m32"
-fi
-
-if enabled cuda_nvcc; then
-    nvccflags="$nvccflags -ptx"
-else
-    nvccflags="$nvccflags -S -nocudalib -nocudainc --cuda-device-only -Wno-c++11-narrowing -include ${source_link}/compat/cuda/cuda_runtime.h"
-    check_nvcc cuda_llvm
-fi
-
-if ! disabled ffnvcodec; then
-    ffnv_hdr_list="ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h"
-    check_pkg_config ffnvcodec "ffnvcodec >= 12.1.14.0" "$ffnv_hdr_list" "" || \
-      check_pkg_config ffnvcodec "ffnvcodec >= 12.0.16.1 ffnvcodec < 12.1" "$ffnv_hdr_list" "" || \
-      check_pkg_config ffnvcodec "ffnvcodec >= 11.1.5.3 ffnvcodec < 12.0" "$ffnv_hdr_list" "" || \
-      check_pkg_config ffnvcodec "ffnvcodec >= 11.0.10.3 ffnvcodec < 11.1" "$ffnv_hdr_list" "" || \
-      check_pkg_config ffnvcodec "ffnvcodec >= 8.1.24.15 ffnvcodec < 8.2" "$ffnv_hdr_list" ""
-fi
-
-if enabled_all libglslang libshaderc; then
-    die "ERROR: libshaderc and libglslang are mutually exclusive, if in doubt, disable libglslang"
-fi
-
-check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"
-
-if ! disabled w32threads && ! enabled pthreads; then
-    check_func_headers "windows.h process.h" _beginthreadex &&
-        check_type "windows.h" CONDITION_VARIABLE &&
-        check_type "windows.h" INIT_ONCE &&
-        enable w32threads || disable w32threads
-    if ! enabled w32threads && enabled winrt; then
-        check_func_headers "windows.h" CreateThread &&
-            enable w32threads || disable w32threads
-    fi
-fi
-
-# check for some common methods of building with pthread support
-# do this before the optional library checks as some of them require pthreads
-if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
-    if check_lib pthreads pthread.h pthread_join   -pthread &&
-       check_lib pthreads pthread.h pthread_create -pthread; then
-        add_allcflags -pthread
-    elif check_lib pthreads pthread.h pthread_join   -pthreads &&
-         check_lib pthreads pthread.h pthread_create -pthreads; then
-        add_allcflags -pthreads
-    elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
-         check_lib pthreads pthread.h pthread_create -ldl -pthread; then
-        add_allcflags -ldl -pthread
-    elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
-         check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
-        :
-    elif check_lib pthreads pthread.h pthread_join   -lpthread &&
-         check_lib pthreads pthread.h pthread_create -lpthread; then
-        :
-    elif check_func pthread_join && check_func pthread_create; then
-        enable pthreads
-    fi
-    check_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"
-
-    if enabled pthreads; then
-        check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
-        check_func pthread_cancel $pthreads_extralibs
-        hdrs=pthread.h
-        if enabled pthread_np_h; then
-            hdrs="$hdrs pthread_np.h"
-        fi
-        check_lib pthread_set_name_np "$hdrs" pthread_set_name_np -lpthread
-        check_lib pthread_setname_np "$hdrs" pthread_setname_np -lpthread
-    fi
-fi
-
-enabled  zlib && { check_pkg_config zlib zlib "zlib.h" zlibVersion ||
-                   check_lib zlib   zlib.h      zlibVersion    -lz; }
-enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
-enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
-
-enabled zlib && test_exec $zlib_extralibs <<EOF && enable zlib_gzip
-#include <zlib.h>
-int main(void) {
-    if (zlibCompileFlags() & (1 << 17)) return 1;
-    return 0;
-}
-EOF
-
-[ -x "$(command -v gzip)" ] && enable gzip
-
-enabled zlib_gzip && enabled gzip || disable shader_compression
-
-enabled zlib_gzip && enabled gzip || disable resource_compression
-
-# On some systems dynamic loading requires no extra linker flags
-check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
-
-check_lib libm math.h sin -lm
-
-atan2f_args=2
-copysign_args=2
-hypot_args=2
-ldexpf_args=2
-powf_args=2
-
-for func in $MATH_FUNCS; do
-    eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
-done
-
-# these are off by default, so fail if requested and not available
-enabled avisynth          && { require_headers "avisynth/avisynth_c.h avisynth/avs/version.h" &&
-                               { test_cpp_condition avisynth/avs/version.h "AVS_MAJOR_VER >= 3 && AVS_MINOR_VER >= 7 && AVS_BUGFIX_VER >= 3 || AVS_MAJOR_VER >= 3 && AVS_MINOR_VER > 7 || AVS_MAJOR_VER > 3" ||
-                                 die "ERROR: AviSynth+ header version must be >= 3.7.3"; } }
-enabled cairo             && require_pkg_config cairo cairo "cairo.h" cairo_create
-enabled cuda_nvcc         && { check_nvcc cuda_nvcc || die "ERROR: failed checking for nvcc."; }
-enabled chromaprint       && { check_pkg_config chromaprint libchromaprint "chromaprint.h" chromaprint_get_version ||
-                               require chromaprint chromaprint.h chromaprint_get_version -lchromaprint; }
-enabled decklink          && { require_headers DeckLinkAPI.h &&
-                               { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a0b0000" || die "ERROR: Decklink API version must be >= 10.11"; } }
-enabled frei0r            && require_headers "frei0r.h"
-enabled gmp               && require gmp gmp.h mpz_export -lgmp
-enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
-enabled jni               && { [ $target_os = "android" ] && check_headers jni.h && enabled pthreads || die "ERROR: jni not found"; }
-enabled ladspa            && require_headers "ladspa.h dlfcn.h"
-enabled lcms2             && require_pkg_config lcms2 "lcms2 >= 2.13" lcms2.h cmsCreateContext
-enabled libaom            && require_pkg_config libaom "aom >= 2.0.0" aom/aom_codec.h aom_codec_version
-enabled liboapv           && require_pkg_config liboapv "oapv >= 0.2.0.0" "oapv/oapv.h" oapve_encode
-enabled libaribb24        && { check_pkg_config libaribb24 "aribb24 > 1.0.3" "aribb24/aribb24.h" arib_instance_new ||
-                               { enabled gpl && require_pkg_config libaribb24 aribb24 "aribb24/aribb24.h" arib_instance_new; } ||
-                               die "ERROR: libaribb24 requires version higher than 1.0.3 or --enable-gpl."; }
-enabled libaribcaption    && require_pkg_config libaribcaption "libaribcaption >= 1.1.1" "aribcaption/aribcaption.h" aribcc_context_alloc
-enabled lv2               && require_pkg_config lv2 lilv-0 "lilv/lilv.h" lilv_world_new
-enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
-enabled libass            && require_pkg_config libass "libass >= 0.11.0" ass/ass.h ass_library_init
-enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open
-enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
-enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
-                             { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
-                               die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
-enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas
-enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2
-enabled libdav1d          && require_pkg_config libdav1d "dav1d >= 1.0.0" "dav1d/dav1d.h" dav1d_version
-enabled libdavs2          && require_pkg_config libdavs2 "davs2 >= 1.6.0" davs2.h davs2_decoder_open
-enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
-enabled libdrm            && check_pkg_config libdrm libdrm xf86drm.h drmGetVersion
-enabled libdvdnav         && require_pkg_config libdvdnav "dvdnav >= 6.1.0" dvdnav/dvdnav.h dvdnav_open2
-enabled libdvdread        && require_pkg_config libdvdread "dvdread >= 6.1.1" dvdread/dvd_reader.h DVDOpen2
-enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
-                               { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
-                                 warn "using libfdk without pkg-config"; } }
-flite_extralibs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
-enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs
-enabled fontconfig        && enable libfontconfig
-enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
-enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
-enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
-enabled libharfbuzz       && require_pkg_config libharfbuzz harfbuzz hb.h hb_buffer_create
-if enabled libglslang; then
-    spvremap="-lSPVRemapper"
-    require_headers "glslang/build_info.h" && { test_cpp_condition glslang/build_info.h "GLSLANG_VERSION_MAJOR >= 16" && spvremap="" ; }
-    check_lib spirv_library glslang/Include/glslang_c_interface.h glslang_initialize_process \
-                            -lglslang -lMachineIndependent -lGenericCodeGen \
-                            ${spvremap} -lSPIRV -lSPIRV-Tools-opt -lSPIRV-Tools -lstdc++ $libm_extralibs $pthreads_extralibs ||
-                        require spirv_library glslang/Include/glslang_c_interface.h glslang_initialize_process \
-                            -lglslang -lMachineIndependent -lOSDependent -lHLSL -lOGLCompiler -lGenericCodeGen \
-                            ${spvremap} -lSPIRV -lSPIRV-Tools-opt -lSPIRV-Tools -lstdc++ $libm_extralibs $pthreads_extralibs ;
-fi
-enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
-                               require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
-enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
-                                   check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
-                               done || die "ERROR: libgsm not found"; }
-enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs
-enabled libjxl            && require_pkg_config libjxl "libjxl >= 0.7.0" jxl/decode.h JxlDecoderVersion &&
-                             require_pkg_config libjxl_threads "libjxl_threads >= 0.7.0" jxl/thread_parallel_runner.h JxlThreadParallelRunner
-enabled libklvanc         && require libklvanc libklvanc/vanc.h klvanc_context_create -lklvanc
-enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 2.0.0" kvazaar.h kvz_api_get
-enabled liblc3            && require_pkg_config liblc3 "lc3 >= 1.1.0" lc3.h lc3_hr_setup_encoder
-enabled liblensfun        && require_pkg_config liblensfun lensfun lensfun.h lf_db_create
-enabled liblcevc_dec      && require_pkg_config liblcevc_dec "lcevc_dec >= 4.0.0" "LCEVC/lcevc_dec.h" LCEVC_CreateDecoder
-
-if enabled libmfx && enabled libvpl; then
-   die "ERROR: can not use libmfx and libvpl together"
-# While it may appear that require is being used as a pkg-config
-# fallback for libmfx, it is actually being used to detect a different
-# installation route altogether.  If libmfx is installed via the Intel
-# Media SDK or Intel Media Server Studio, these don't come with
-# pkg-config support.  Instead, users should make sure that the build
-# can find the libraries and headers through other means.
-elif enabled libmfx; then
-    { check_pkg_config libmfx "libmfx >= 1.28 libmfx < 2.0" "mfxvideo.h" MFXInit ||
-# Some old versions of libmfx have the following settings in libmfx.pc:
-#   includedir=/usr/include
-#   Cflags: -I${includedir}
-# So add -I${includedir}/mfx to CFLAGS
-      { check_pkg_config libmfx "libmfx >= 1.28 libmfx < 2.0" "mfx/mfxvideo.h" MFXInit && add_cppflags -I${libmfx_incdir}/mfx; } ||
-      { require libmfx "mfxvideo.h mfxdefs.h" MFXInit "-llibmfx $advapi32_extralibs" &&
-        { test_cpp_condition mfxdefs.h "MFX_VERSION >= 1028 && MFX_VERSION < 2000" || die "ERROR: libmfx version must be >= 1.28 and < 2.0"; }  &&
-        warn "using libmfx without pkg-config"; } } &&
-    warn "libmfx is deprecated. Please run configure with --enable-libvpl to use libvpl instead."
-elif enabled libvpl; then
-# Consider pkg-config only. The name of libmfx is still passed to check_pkg_config function for --enable-libvpl option
-# because QSV has dependency on libmfx, we can use the same dependency if using libmfx in this check. The package name
-# is extracted from "vpl >= 2.6"
-    check_pkg_config libmfx "vpl >= 2.6" "mfxvideo.h mfxdispatcher.h" MFXLoad || \
-            die "ERROR: libvpl >= 2.6 not found"
-    add_cppflags -DMFX_DEPRECATED_OFF
-    check_type "vpl/mfxdefs.h vpl/mfxvideo.h" "struct mfxConfigInterface"
-fi
-
-if enabled libmfx; then
-   check_cc MFX_CODEC_VP9 "mfxdefs.h mfxstructures.h" "MFX_CODEC_VP9"
-fi
-
-enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
-enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs
-enabled libmpeghdec       && require_pkg_config libmpeghdec "mpeghdec >= 3.0.0" mpeghdec/mpeghdecoder.h mpeghdecoder_init
-enabled libmysofa         && { check_pkg_config libmysofa libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine ||
-                               require libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine -lmysofa $zlib_extralibs; }
-enabled libnpp            && { test_cpp_condition "$(cd "$source_path"; pwd)/libavfilter/version_major.h" FF_API_LIBNPP_SUPPORT ||
-                               die "ERROR: libnpp support is removed in this version"; } &&
-                             { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc -lnppidei -lnppif ||
-                               check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppif -lnppc -lnppidei ||
-                               die "ERROR: libnpp not found"; } &&
-                             { check_func_headers "nppi.h" nppiYCbCr420_8u_P2P3R $libnpp_extralibs ||
-                               die "ERROR: libnpp support is deprecated, version 13.0 and up are not supported"; }
-enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
-enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
-enabled libopencv         && { check_pkg_config libopencv opencv4 opencv2/core/core_c.h cvCreateImageHeader ||
-                               require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; }
-enabled libopencolorio    && require_pkg_config_cxx libopencolorio "OpenColorIO" OpenColorIO/OpenColorIO.h OCIO_NAMESPACE::Config
-enabled libopenh264       && require_pkg_config libopenh264 "openh264 >= 1.3.0" wels/codec_api.h WelsGetCodecVersion
-enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
-                               { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
-enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
-enabled libopenvino       && { { check_pkg_config libopenvino openvino openvino/c/openvino.h ov_core_create && enable openvino2; } ||
-                                { check_pkg_config libopenvino openvino c_api/ie_c_api.h ie_c_api_version ||
-                                  require libopenvino c_api/ie_c_api.h ie_c_api_version -linference_engine_c_api; } }
-enabled libopus           && {
-    enabled libopus_decoder && {
-        require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
-    }
-    enabled libopus_encoder && {
-        require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
-    }
-}
-enabled libplacebo        && require_pkg_config libplacebo "libplacebo >= 5.229.0" libplacebo/vulkan.h pl_vulkan_create
-enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
-enabled libqrencode       && require_pkg_config libqrencode libqrencode qrencode.h QRcode_encodeString
-enabled libquirc          && require libquirc quirc.h quirc_decode -lquirc
-enabled librabbitmq       && require_pkg_config librabbitmq "librabbitmq >= 0.7.1" amqp.h amqp_new_connection
-enabled librav1e          && require_pkg_config librav1e "rav1e >= 0.5.0" rav1e.h rav1e_context_new
-enabled librist           && require_pkg_config librist "librist >= 0.2.7" librist/librist.h rist_receiver_create
-enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_new_from_data
-enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
-enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
-enabled libshaderc        && require_pkg_config spirv_library "shaderc >= 2019.1" shaderc/shaderc.h shaderc_compiler_initialize
-enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
-enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
-                               require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
-enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
-enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
-enabled libssh            && require_pkg_config libssh "libssh >= 0.6.0" libssh/sftp.h sftp_init
-enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
-enabled libsrt            && require_pkg_config libsrt "srt >= 1.3.0" srt/srt.h srt_socket
-enabled libsvtav1         && require_pkg_config libsvtav1 "SvtAv1Enc >= 0.9.0" EbSvtAv1Enc.h svt_av1_enc_init_handle
-enabled libsvtjpegxs      && require_pkg_config libsvtjpegxs "SvtJpegxs >= 0.10.0" SvtJpegxsEnc.h svt_jpeg_xs_encoder_init
-enabled libtensorflow     && require libtensorflow tensorflow/c/c_api.h TF_Version -ltensorflow
-enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
-enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
-enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure &&
-                             { enabled gpl && ! enabled nonfree && die "ERROR: LibreSSL is incompatible with the gpl"; }
-enabled libtorch          && check_cxxflags -std=c++17 && require_cxx libtorch torch/torch.h "torch::Tensor" -ltorch -lc10 -ltorch_cpu -lstdc++ -lpthread
-enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
-                             { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
-                               die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
-enabled libuavs3d         && require_pkg_config libuavs3d "uavs3d >= 1.1.41" uavs3d.h uavs3d_decode
-enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl
-enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
-enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 2.0.0" libvmaf.h vmaf_init
-enabled libvmaf           && check_pkg_config libvmaf_cuda "libvmaf >= 2.0.0" libvmaf_cuda.h vmaf_cuda_state_init
-enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
-enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&
-                             require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
-
-enabled whisper           && require_pkg_config whisper "whisper >= 1.7.5" whisper.h whisper_init_from_file_with_params
-
-enabled libvpx            && {
-    enabled libvpx_vp8_decoder && {
-        check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
-            check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp8_dx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs"
-    }
-    enabled libvpx_vp8_encoder && {
-        check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
-            check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp8_cx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs"
-    }
-    enabled libvpx_vp9_decoder && {
-        check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
-            check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs"
-    }
-    enabled libvpx_vp9_encoder && {
-        check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
-            check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs"
-    }
-    if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
-        die "libvpx enabled but no supported decoders found"
-    fi
-}
-
-enabled libvvenc          && require_pkg_config libvvenc "libvvenc >= 1.6.1" "vvenc/vvenc.h" vvenc_get_version
-enabled libwebp           && {
-    enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
-    enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
-enabled libx264           && require_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode &&
-                             require_cpp_condition libx264 x264.h "X264_BUILD >= 155" && {
-                             [ "$toolchain" != "msvc" ] ||
-                             require_cpp_condition libx264 x264.h "X264_BUILD >= 158"; } &&
-                             check_cpp_condition libx264_hdr10 x264.h "X264_BUILD >= 163" &&
-                             check_cpp_condition libx262 x264.h "X264_MPEG2"
-enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
-                             require_cpp_condition libx265 x265.h "X265_BUILD >= 89"
-enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
-enabled libxavs2          && require_pkg_config libxavs2 "xavs2 >= 1.3.0" "stdint.h xavs2.h" xavs2_api_get
-enabled libxevd           && require_pkg_config libxevd "xevd >= 0.4.1" "xevd.h" xevd_decode
-enabled libxevdb          && require_pkg_config libxevdb "xevdb >= 0.4.1" "xevd.h" xevd_decode
-enabled libxeve           && require_pkg_config libxeve "xeve >= 0.5.1" "xeve.h" xeve_encode
-enabled libxeveb          && require_pkg_config libxeveb "xeveb >= 0.5.1" "xeve.h" xeve_encode
-enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
-enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
-enabled libzmq            && require_pkg_config libzmq "libzmq >= 4.2.1" zmq.h zmq_ctx_new
-enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&
-                             { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
-                               enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
-enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
-enabled mbedtls           && { check_pkg_config mbedtls mbedtls mbedtls/x509_crt.h mbedtls_x509_crt_init ||
-                               check_pkg_config mbedtls mbedtls mbedtls/ssl.h mbedtls_ssl_init ||
-                               check_lib mbedtls mbedtls/ssl.h mbedtls_ssl_init -lmbedtls -lmbedx509 -lmbedcrypto ||
-                               die "ERROR: mbedTLS not found"; }
-enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; } &&
-                               add_compat android/binder.o
-enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
-                               { ! enabled cross_compile &&
-                                 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
-                                 add_ldflags -L/opt/vc/lib/ &&
-                                 check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
-                               die "ERROR: mmal not found" &&
-                               check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
-enabled ohcodec           && { check_lib ohcodec "multimedia/player_framework/native_avcodec_videodecoder.h multimedia/player_framework/native_avcodec_videoencoder.h" \
-                                    "OH_VideoDecoder_CreateByName OH_VideoEncoder_CreateByName" \
-                                    -lnative_media_vdec -lnative_media_venc -lnative_media_codecbase -lnative_media_core -lnative_window ||
-                               die "ERROR: missing native_media libs"; }
-enabled openal            && { check_pkg_config openal "openal >= 1.1" "AL/al.h" alGetError ||
-                               { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
-                               check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
-                               die "ERROR: openal not found"; } &&
-                             { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
-                               die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
-enabled opencl            && { check_pkg_config opencl OpenCL CL/cl.h clEnqueueNDRangeKernel ||
-                               check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel "-framework OpenCL" ||
-                               check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
-                               die "ERROR: opencl not found"; } &&
-                             { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
-                               test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
-                               die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
-enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
-                               check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
-                               check_lib opengl OpenGL/gl3.h glGetError "-framework OpenGL" ||
-                               check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -framework OpenGLES" ||
-                               die "ERROR: opengl not found."
-                             }
-enabled omx_rpi           && { test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame ||
-                               { ! enabled cross_compile &&
-                                 add_cflags -isystem/opt/vc/include/IL &&
-                                 test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame; } ||
-                               die "ERROR: OpenMAX IL headers from raspberrypi/firmware not found"; } &&
-                             enable omx
-enabled omx               && require_headers OMX_Core.h && \
-    warn "The OpenMAX encoders are deprecated and will be removed in future versions"
-
-enabled openssl           && { { check_pkg_config openssl "openssl >= 3.0.0" openssl/ssl.h DTLS_get_data_mtu &&
-                                 { enabled gplv3 || ! enabled gpl || enabled nonfree || die "ERROR: OpenSSL >=3.0.0 requires --enable-version3"; }; } ||
-                               { enabled gpl && ! enabled nonfree && die "ERROR: OpenSSL <3.0.0 is incompatible with the gpl"; } ||
-                               check_pkg_config openssl "openssl >= 1.1.1" openssl/ssl.h DTLS_get_data_mtu ||
-                               check_lib openssl openssl/ssl.h DTLS_get_data_mtu -lssl -lcrypto ||
-                               check_lib openssl openssl/ssl.h DTLS_get_data_mtu -lssl -lcrypto -lws2_32 -lgdi32 ||
-                               die "ERROR: openssl (>= 1.1.1) not found"; }
-enabled pocketsphinx      && require_pkg_config pocketsphinx pocketsphinx pocketsphinx/pocketsphinx.h ps_init
-enabled rkmpp             && { require_pkg_config rkmpp "rockchip_mpp >= 1.3.8" "rockchip/rk_mpi.h rockchip/mpp_buffer.h" "mpp_create mpp_buffer_sync_begin_f" &&
-                               { enabled libdrm ||
-                                 die "ERROR: rkmpp requires --enable-libdrm"; }
-                             }
-enabled vapoursynth       && require_headers "vapoursynth/VSScript4.h vapoursynth/VapourSynth4.h"
-
-if enabled gcrypt; then
-    GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
-    if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
-        gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
-        gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
-        check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
-            die "ERROR: gcrypt not found"
-        add_cflags $gcrypt_cflags
-    else
-        require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
-    fi
-fi
-
-if enabled sdl2; then
-    SDL2_CONFIG="${cross_prefix}sdl2-config"
-    test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 3.0.0" SDL_events.h SDL_PollEvent
-    if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
-        sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
-        sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
-        test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
-        test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x030000" $sdl2_cflags &&
-        check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&
-            enable sdl2
-    fi
-    if test $target_os = "mingw32"; then
-        sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)
-    fi
-fi
-
-if enabled decklink; then
-    case $target_os in
-        mingw32*|mingw64*|win32|win64)
-            decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -luuid -loleaut32"
-            decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -luuid -loleaut32"
-            ;;
-    esac
-fi
-
-enabled securetransport &&
-    check_func SecIdentityCreate "-framework CoreFoundation -framework Security" &&
-    check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-framework CoreFoundation -framework Security" ||
-        disable securetransport
-
-enabled securetransport &&
-    check_func SecItemImport "-framework CoreFoundation -framework Security"
-
-enabled schannel &&
-    check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
-    check_func_headers "windows.h ncrypt.h" NCryptOpenStorageProvider -DSECURITY_WIN32 -lncrypt &&
-    check_func_headers "windows.h wincrypt.h" CertCreateSelfSignCertificate -DSECURITY_WIN32 -lcrypt32 &&
-    test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
-    schannel_extralibs="-lsecur32 -lncrypt -lcrypt32" ||
-        disable schannel
-
-enabled schannel && check_cc dtls_protocol "windows.h security.h schnlsp.h" "int i = SECPKG_ATTR_DTLS_MTU;" -DSECURITY_WIN32
-
-makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
-enabled makeinfo \
-    && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
-    && enable makeinfo_html || disable makeinfo_html
-disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
-perl -v            > /dev/null 2>&1 && enable perl      || disable perl
-pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
-rsync --help 2> /dev/null | grep -q 'contimeout=' && enable rsync_contimeout || disable rsync_contimeout
-xmllint --version  > /dev/null 2>&1 && enable xmllint   || disable xmllint
-
-check_headers linux/fb.h
-check_headers linux/videodev2.h
-test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
-test_code cc sys/ioctl.h "int ioctl(int, int, ...)" && enable ioctl_posix
-
-# check V4L2 codecs available in the API
-if enabled v4l2_m2m; then
-    check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"
-    check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"
-    check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"
-    check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"
-    check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"
-    check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"
-    check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"
-    check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"
-    check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"
-    check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"
-fi
-
-check_headers sys/videoio.h
-test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
-
-check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
-check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
-# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
-# w32api 3.12 had it defined wrong
-check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
-
-check_type "dshow.h" IBaseFilter
-
-if check_struct sys/soundcard.h audio_buf_info bytes; then
-    enable_sanitized sys/soundcard.h
-else
-    test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h
-    #include <sys/soundcard.h>
-    audio_buf_info abc;
-EOF
-fi
-
-enabled alsa && { check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
-                  check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound; }
-
-enabled libjack &&
-    require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
-
-enabled sndio && check_pkg_config sndio sndio sndio.h sio_open
-
-if enabled libcdio; then
-    check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||
-    check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||
-    check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
-    check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
-    die "ERROR: No usable libcdio/cdparanoia found"
-fi
-
-enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||
-    disable libxcb_shm libxcb_shape libxcb_xfixes
-
-if enabled libxcb; then
-    enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach
-    enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles
-    enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
-fi
-
-check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
-
-# check if building for desktop or uwp
-test_cpp <<EOF && enable uwp
-#ifdef WINAPI_FAMILY
-#include <winapifamily.h>
-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
-#error desktop, not uwp
-#else
-// WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
-#endif
-#else
-#error no family set
-#endif
-EOF
-
-mediafoundation_extralibs="-lmfuuid -lole32 -lstrmiids"
-
-if enabled uwp; then
-    # In UWP mode, we can't use LoadLibrary+GetProcAddress to conditionally
-    # try to load these APIs at runtime, like we do in regular desktop mode -
-    # therefore, we need to link directly against these APIs.
-    d3d11va_extralibs="-ldxgi -ld3d11"
-    d3d12va_extralibs="-ldxgi -ld3d12"
-    vaapi_win32_extralibs="-ldxgi"
-    mediafoundation_extralibs="-lmfplat $mediafoundation_extralibs"
-fi
-
-enabled libdrm &&
-    check_pkg_config libdrm_getfb2 libdrm "xf86drmMode.h" drmModeGetFB2
-
-enabled vaapi &&
-    check_pkg_config vaapi "libva >= 0.35.0" "va/va.h" vaInitialize
-
-if enabled vaapi; then
-    case $target_os in
-        mingw32*|mingw64*|win32|win64)
-            check_pkg_config vaapi_win32 "libva-win32" "va/va_win32.h" vaGetDisplayWin32
-            ;;
-        *)
-            check_pkg_config vaapi_drm "libva-drm" "va/va_drm.h" vaGetDisplayDRM
-            ;;
-    esac
-
-    if enabled xlib_x11; then
-        check_pkg_config vaapi_x11 "libva-x11" "va/va_x11.h" vaGetDisplay
-    fi
-
-    check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"
-
-    check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
-    check_type "va/va.h va/va_dec_vvc.h" "VAPictureParameterBufferVVC"
-    check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
-    check_struct "va/va.h" "VADecPictureParameterBufferAV1" bit_depth_idx
-    check_type   "va/va.h va/va_vpp.h" "VAProcFilterParameterBufferHDRToneMapping"
-    check_struct "va/va.h va/va_vpp.h" "VAProcPipelineCaps" rotation_flags
-    check_struct "va/va.h va/va_vpp.h" "VAProcPipelineCaps" blend_flags
-    check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
-    check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
-    check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
-    check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
-    check_type "va/va.h va/va_enc_av1.h"  "VAEncPictureParameterBufferAV1"
-fi
-
-if enabled_all opencl libdrm ; then
-    check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&
-        enable opencl_drm_beignet
-    check_func_headers "CL/cl_ext.h" clImportMemoryARM &&
-        enable opencl_drm_arm
-fi
-
-if enabled_all opencl vaapi ; then
-    if enabled opencl_drm_beignet ; then
-        enable opencl_vaapi_beignet
-    else
-        check_type "CL/cl.h CL/cl_va_api_media_sharing_intel.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&
-            enable opencl_vaapi_intel_media
-    fi
-fi
-
-if enabled_all opencl dxva2 ; then
-    check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
-        enable opencl_dxva2
-fi
-
-if enabled_all opencl d3d11va ; then
-    check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&
-        enable opencl_d3d11
-fi
-
-if enabled_all opencl videotoolbox ; then
-    check_func_headers OpenCL/cl_gl_ext.h clCreateImageFromIOSurfaceWithPropertiesAPPLE -framework VideoToolbox -framework OpenCL &&
-        enable opencl_videotoolbox
-fi
-
-enabled vdpau &&
-    check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
-
-enabled vdpau &&
-    check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
-
-# Check for the Vulkan headers
-if enabled_all vulkan vulkan_static; then
-    check_pkg_config vulkan "vulkan >= 1.3.277" "vulkan/vulkan.h" "defined VK_VERSION_1_3" ||
-        check_lib vulkan "vulkan/vulkan.h" vkGetInstanceProcAddr -lvulkan
-elif enabled vulkan; then
-    check_pkg_config_header_only vulkan "vulkan >= 1.3.277" "vulkan/vulkan.h" "defined VK_VERSION_1_3" ||
-        check_cpp_condition vulkan "vulkan/vulkan.h" "defined(VK_VERSION_1_4) || (defined(VK_VERSION_1_3) && VK_HEADER_VERSION >= 277)" $vulkan_incflags
-fi
-
-probe_glslc(){
-    glslc_probe=$1
-    if test_cmd $glslc_probe -v; then
-        # glslang/glslangValidator
-        glslc=$glslc_probe
-        glslcflags="-V --target-env spirv1.6 --glsl-version 460"
-        glslc_opt_speed=""
-        glslc_opt_size="-Os"
-        glslc_opt_none="-Od"
-        glslc_debug="-gVS"
-        GLSLC_DEPFLAGS='--depfile $(@:.spv=.d)'
-    elif test_cmd $glslc_probe --version; then
-        # glslc
-        glslc=$glslc_probe
-        glslcflags="--target-env=vulkan1.4 --target-spv=spv1.6 -std=460"
-        glslc_opt_speed="-O"
-        glslc_opt_size="-Os"
-        glslc_opt_none="-O0"
-        glslc_debug="-g"
-        GLSLC_DEPFLAGS='-MD -MF $(@:.spv=.d) -MT $@'
-    else
-        disable spirv_compiler
-        return 1
-    fi
-    check_glslc spirv_compiler || return 0
-
-    append GLSLCFLAGS $glslcflags
-    if enabled small; then
-        append GLSLCFLAGS $glslc_opt_size
-    elif enabled optimizations; then
-        append GLSLCFLAGS $glslc_opt_speed
-    else
-        append GLSLCFLAGS $glslc_opt_none
-    fi
-    if enabled debug; then
-        append GLSLCFLAGS $glslc_debug
-    fi
-}
-
-if enabled vulkan; then
-    check_pkg_config_header_only vulkan_1_4 "vulkan >= 1.4.317" "vulkan/vulkan.h" "defined VK_VERSION_1_4" ||
-        check_cpp_condition vulkan_1_4 "vulkan/vulkan.h" "defined(VK_VERSION_1_5) || (defined(VK_VERSION_1_4) && VK_HEADER_VERSION >= 317)" $vulkan_incflags
-    for program in $glslc glslc glslang glslangValidator; do
-        probe_glslc $program && break
-    done
-else
-    disable libglslang libshaderc spirv_library spirv_compiler
-fi
-
-if enabled x86; then
-    case $target_os in
-        freebsd|mingw32*|mingw64*|win32|win64|linux|cygwin*)
-            ;;
-        *)
-            disable ffnvcodec cuvid nvdec nvenc
-            ;;
-    esac
-elif enabled_any aarch64 ppc64 && ! enabled bigendian; then
-    case $target_os in
-        linux)
-            ;;
-        *)
-            disable ffnvcodec cuvid nvdec nvenc
-            ;;
-    esac
-else
-    disable ffnvcodec cuvid nvdec nvenc
-fi
-
-enabled ffnvcodec && enable cuda
-
-enabled nvenc &&
-    test_cc -I$source_path <<EOF || disable nvenc
-#include <ffnvcodec/nvEncodeAPI.h>
-NV_ENCODE_API_FUNCTION_LIST flist;
-void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_CODEC_H264_GUID } }; }
-int main(void) { return 0; }
-EOF
-
-if enabled nvenc; then
-    check_type "ffnvcodec/nvEncodeAPI.h" "NV_ENC_PIC_PARAMS_AV1"
-fi
-
-if enabled_any nvdec cuvid; then
-    check_type "ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h" "CUVIDAV1PICPARAMS"
-fi
-
-enabled amf &&
-    check_cpp_condition amf "AMF/core/Version.h" \
-        "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400240000"
-
-# Funny iconv installations are not unusual, so check it after all flags have been set
-if enabled libc_iconv; then
-    check_func_headers iconv.h iconv
-elif enabled iconv; then
-    check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
-fi
-
-enabled debug && add_allcflags -g"$debuglevel" && add_asflags -g"$debuglevel"
-
-for lang in c cxx objc; do
-    test_${lang}flags -Werror=unused-command-line-argument &&
-        append unknown_warning_${lang}flags "-Werror=unused-command-line-argument"
-    test_${lang}flags -Werror=unknown-warning-option &&
-        append unknown_warning_${lang}flags "-Werror=unknown-warning-option"
-done
-
-check_warning(){
-    warning_flag=$1
-    flag_to_add=${2:-$1}
-    test_cflags $unknown_warning_cflags $warning_flag && add_cflags $flag_to_add
-    test_cxxflags -Werror $unknown_warning_cxxflags $warning_flag && add_cxxflags $flag_to_add
-    test_objcflags $unknown_warning_objcflags $warning_flag && add_objcflags $flag_to_add
-}
-
-check_disable_warning(){
-    warning_flag=-W${1#-Wno-}
-    check_warning $warning_flag $1
-}
-
-check_c_warning(){
-    warning_flag=$1
-    test_cflags $unknown_warning_cflags $warning_flag && add_cflags $warning_flag
-}
-
-# add some useful compiler flags if supported
-check_warning -Wall
-check_warning -Wdisabled-optimization
-check_warning -Wpointer-arith
-check_warning -Wredundant-decls
-check_warning -Wwrite-strings
-check_warning -Wtype-limits
-check_warning -Wundef
-check_warning -Wempty-body
-check_c_warning -Wmissing-prototypes
-check_c_warning -Wstrict-prototypes
-check_c_warning -Wunterminated-string-initialization
-
-if enabled extra_warnings; then
-    check_warning -Wcast-qual
-    check_warning -Wextra
-    check_warning -Wpedantic
-fi
-
-check_disable_warning -Wno-parentheses
-check_disable_warning -Wno-switch
-check_disable_warning -Wno-format-zero-length
-check_disable_warning -Wno-pointer-sign
-check_disable_warning -Wno-unused-const-variable
-check_disable_warning -Wno-bool-operation
-check_disable_warning -Wno-char-subscripts
-check_disable_warning -Wno-implicit-const-int-float-conversion
-check_disable_warning -Wno-microsoft-enum-forward-reference
-
-check_disable_warning_headers(){
-    warning_flag=-W${1#-Wno-}
-    test_cflags $unknown_warning_cflags $warning_flag && add_cflags_headers $1
-}
-
-check_disable_warning_headers -Wno-deprecated-declarations
-check_disable_warning_headers -Wno-unused-variable
-
-test_cc <<EOF && enable blocks_extension
-void (^block)(void);
-EOF
-
-# add some linker flags
-check_ldflags -Wl,-rpath-link=:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
-enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
-test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
-
-# add some strip flags
-check_stripflags -x
-
-enabled neon_clobber_test &&
-    check_ldflags -Wl,--wrap,avcodec_open2              \
-                  -Wl,--wrap,avcodec_decode_subtitle2   \
-                  -Wl,--wrap,avcodec_encode_subtitle    \
-                  -Wl,--wrap,avcodec_send_packet        \
-                  -Wl,--wrap,avcodec_receive_packet     \
-                  -Wl,--wrap,avcodec_send_frame         \
-                  -Wl,--wrap,avcodec_receive_frame      \
-                  -Wl,--wrap,swr_convert        ||
-    disable neon_clobber_test
-
-enabled xmm_clobber_test &&
-    check_ldflags -Wl,--wrap,avcodec_open2              \
-                  -Wl,--wrap,avcodec_decode_subtitle2   \
-                  -Wl,--wrap,avcodec_encode_subtitle    \
-                  -Wl,--wrap,avcodec_send_packet        \
-                  -Wl,--wrap,avcodec_receive_packet     \
-                  -Wl,--wrap,avcodec_send_frame         \
-                  -Wl,--wrap,avcodec_receive_frame      \
-                  -Wl,--wrap,swr_convert                \
-                  -Wl,--wrap,sws_scale ||
-    disable xmm_clobber_test
-
-check_ld "cc" proper_dce <<EOF
-extern const int array[512];
-static inline int func(void) { return array[0]; }
-int main(void) { return 0; }
-EOF
-
-if enabled proper_dce; then
-    echo "X { local: *; };" > $TMPV
-    if test_ldflags -Wl,${version_script},$TMPV; then
-        append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
-        quotes='""'
-        test_cc <<EOF && enable symver_asm_label
-void ff_foo(void) __asm__ ("av_foo@VERSION");
-void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
-EOF
-        test_cc <<EOF && enable symver_gnu_asm
-__asm__(".symver ff_foo,av_foo@VERSION");
-void ff_foo(void) {}
-EOF
-    fi
-fi
-
-if [ -z "$optflags" ]; then
-    if enabled small; then
-        optflags=$cflags_size
-    elif enabled optimizations; then
-        optflags=$cflags_speed
-    else
-        optflags=$cflags_noopt
-    fi
-fi
-
-check_optflags(){
-    check_allcflags "$@"
-    [ -n "$lto" ] && check_ldflags "$@"
-}
-
-check_optflags $optflags
-check_optflags -fno-math-errno
-check_optflags -fno-signed-zeros
-
-if [ -n "$lto" ]; then
-    test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
-    check_cflags  $lto
-    check_ldflags $lto $cpuflags
-    disable inline_asm_direct_symbol_refs
-    if test "$cc_type" = "clang"; then
-        # Clang's LTO fails on Windows, when there are references outside
-        # of inline assembly to nonlocal labels defined within inline assembly,
-        # see https://github.com/llvm/llvm-project/issues/76046.
-        case $target_os in
-        mingw32|win32)
-            disable inline_asm_nonlocal_labels
-            ;;
-        esac
-    fi
-fi
-
-enabled ftrapv && check_cflags -ftrapv
-
-test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
-int x;
-EOF
-
-
-if enabled icc; then
-    # Just warnings, no remarks
-    check_allcflags -w1
-    # -wd: Disable following warnings
-    # 144, 167, 556: -Wno-pointer-sign
-    # 188: enumerated type mixed with another type
-    # 1292: attribute "foo" ignored
-    # 1419: external declaration in primary source file
-    # 10006: ignoring unknown option -fno-signed-zeros
-    # 10148: ignoring unknown option -Wno-parentheses
-    # 10156: ignoring option '-W'; no argument required
-    # 13200: No EMMS instruction before call to function
-    # 13203: No EMMS instruction before return from function
-    check_allcflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
-    # 11030: Warning unknown option --as-needed
-    # 10156: ignoring option '-export'; no argument required
-    check_ldflags -wd10156,11030
-    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
-    enable ebp_available
-    # The test above does not test linking
-    [ -n "$lto" ] && disable symver_asm_label
-    if enabled x86_32; then
-        icc_version=$($cc -dumpversion)
-        test ${icc_version%%.*} -ge 11 &&
-            check_cppflags -falign-stack=maintain-16-byte ||
-            disable aligned_stack
-    fi
-elif enabled gcc; then
-    gcc_version=$($cc -dumpversion)
-    major_version=${gcc_version%%[!0-9]*}
-    if [ $major_version -lt 13 ]; then
-        # Disable tree-vectorize for GCC <13 - it has historically been buggy.
-        check_optflags -fno-tree-vectorize
-    else
-        case $arch in
-        x86|arm|aarch64)
-            # Allow the default of having tree-vectorize enabled on well tested
-            # architectures.
-            ;;
-        *)
-            # Disable tree-vectorize on potentially less tested
-            # architectures. Known issues:
-            # - https://gcc.gnu.org/PR121064 on Loongarch
-            check_optflags -fno-tree-vectorize
-            ;;
-        esac
-    fi
-    check_cflags -Werror=implicit-function-declaration
-    check_cflags -Werror=missing-prototypes
-    check_allcflags -Werror=format-security
-    check_allcflags -Werror=return-type
-    check_allcflags -Werror=vla
-    check_allcflags -Wformat
-    check_allcflags -fdiagnostics-color=auto
-    enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
-    if enabled x86_32; then
-        case $target_os in
-        *bsd*)
-            # BSDs don't guarantee a 16 byte aligned stack, but we can
-            # request GCC to try to maintain 16 byte alignment throughout
-            # function calls. Library entry points that might call assembly
-            # functions align the stack. (The parameter means 2^4 bytes.)
-            check_allcflags -mpreferred-stack-boundary=4
-            ;;
-        esac
-    fi
-elif enabled llvm_gcc; then
-    check_allcflags -mllvm -stack-alignment=16
-elif enabled clang; then
-    if enabled x86_32; then
-        # Clang doesn't support maintaining alignment without assuming the
-        # same alignment in every function. If 16 byte alignment would be
-        # enabled, one would also have to either add attribute_align_arg on
-        # every single entry point into the libraries or enable -mstackrealign
-        # (doing stack realignment in every single function).
-        case $target_os in
-        mingw32|win32|*bsd*)
-            disable aligned_stack
-            ;;
-        *)
-            check_allcflags -mllvm -stack-alignment=16
-            check_allcflags -mstack-alignment=16
-            ;;
-        esac
-    else
-        check_allcflags -mllvm -stack-alignment=16
-        check_allcflags -mstack-alignment=16
-    fi
-    check_allcflags -Qunused-arguments
-    check_allcflags -Werror=implicit-function-declaration
-    check_allcflags -Werror=missing-prototypes
-    check_allcflags -Werror=return-type
-elif enabled cparser; then
-    add_cflags -Wno-missing-variable-declarations
-    add_cflags -Wno-empty-statement
-elif enabled armcc; then
-    add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
-    add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
-    # 2523: use of inline assembly is deprecated
-    add_cflags -W${armcc_opt},--diag_suppress=2523
-    add_cflags -W${armcc_opt},--diag_suppress=1207
-    add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
-    add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
-    add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
-    add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
-elif enabled pathscale; then
-    add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
-    disable inline_asm
-elif enabled_any msvc icl; then
-    enabled x86_32 && disable aligned_stack
-    enabled_all x86_32 debug && add_cflags -Oy-
-    enabled debug && add_ldflags -debug
-    enable pragma_deprecated
-    if enabled icl; then
-        # -Qansi-alias is basically -fstrict-aliasing, but does not work
-        # (correctly) on icl 13.x.
-        test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
-            add_cflags -Qansi-alias
-        # Some inline asm is not compilable in debug
-        if enabled debug; then
-            disable ebp_available
-            disable ebx_available
-        fi
-    fi
-    # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
-    check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
-    # the new SSA optimizer in VS2015 U3 is mis-optimizing some parts of the code
-    # Issue has been fixed in MSVC v19.00.24218.
-    test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
-        check_cflags -d2SSAOptimizer-
-    # enable utf-8 source processing on VS2015 U2 and newer
-    test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
-        add_cflags -utf-8
-fi
-
-for pfx in "" host_; do
-    varname=${pfx%_}cc_type
-    eval "type=\$$varname"
-    if [ "$type" = "msvc" ]; then
-        test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
-static inline int foo(int a) { return a; }
-EOF
-    fi
-done
-
-case $as_type in
-    clang)
-        add_asflags -Qunused-arguments
-    ;;
-esac
-
-case $ld_type in
-    clang)
-        check_ldflags -Qunused-arguments
-    ;;
-esac
-
-if [ "$response_files" != "no" ]; then
-    ar_out=${FFTMPDIR}/test$LIBSUF
-    respfile="@/dev/null"
-    out_arg="$(echo $ar_o | sed "s;\$@;$ar_out;g")"
-    if test_cmd $ar $arflags $out_arg $respfile; then
-        response_files="yes"
-    elif [ "$response_files" = "auto" ]; then
-        response_files="no"
-    else
-        die "Response files are not available with this toolchain. Exiting"
-    fi
-fi
-
-enable frame_thread_encoder
-
-enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
-
-check_deps $CONFIG_LIST       \
-           $CONFIG_EXTRA      \
-           $HAVE_LIST         \
-           $ALL_COMPONENTS    \
-
-enabled threads && ! enabled pthreads && ! enabled atomics_native && die "non pthread threading without atomics not supported, try adding --enable-pthreads or --cpu=i486 or higher if you are on x86"
-
-enabled threads || warn \
-    "Threading support was disabled or is not available on the target platform." \
-    "This means that not only is this build not multi-threaded, but also"    \
-    "that the libraries from this build MUST NOT be used in a multi-threaded"\
-    "environment."
-
-case $target_os in
-haiku)
-    disable memalign
-    disable posix_memalign
-    ;;
-*-dos|freedos|opendos)
-    if test_cpp_condition sys/version.h "defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 5"; then
-        disable memalign
-    fi
-    ;;
-esac
-
-flatten_extralibs(){
-    nested_entries=
-    list_name=$1
-    eval list=\$${1}
-    for entry in $list; do
-        entry_copy=$entry
-        resolve entry_copy
-        flat_entries=
-        for e in $entry_copy; do
-            case $e in
-                *_extralibs) nested_entries="$nested_entries$e ";;
-                          *) flat_entries="$flat_entries$e ";;
-            esac
-        done
-        eval $entry="\$flat_entries"
-    done
-    append $list_name "$nested_entries"
-
-    resolve nested_entries
-    if test -n "$(filter '*_extralibs' $nested_entries)"; then
-        flatten_extralibs $list_name
-    fi
-}
-
-flatten_extralibs_wrapper(){
-    list_name=$1
-    flatten_extralibs $list_name
-    unique $list_name
-    resolve $list_name
-    eval $list_name=\$\(\$ldflags_filter \$$list_name\)
-    eval printf \''%s'\' \""\$$list_name"\"
-}
-
-for linkunit in $LIBRARY_LIST; do
-    unset current_extralibs
-    eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
-    for comp in ${components}; do
-        enabled $comp || continue
-        comp_extralibs="${comp}_extralibs"
-        append current_extralibs $comp_extralibs
-    done
-    eval prepend ${linkunit}_extralibs $current_extralibs
-done
-
-for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
-    eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)
-done
-
-map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
-
-for thread in $THREADS_LIST; do
-    if enabled $thread; then
-        test -n "$thread_type" &&
-            die "ERROR: Only one thread type must be selected." ||
-            thread_type="$thread"
-    fi
-done
-
-if disabled stdatomic; then
-    if enabled atomics_win32; then
-        add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
-    else
-        enabled threads && die "Threading is enabled, but no atomics are available"
-        add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
-    fi
-fi
-
-check_builtin stdbit "stdbit.h assert.h" \
-    'static_assert(__STDC_VERSION_STDBIT_H__ >= 202311L, "Compiler lacks stdbit.h")' || \
-    add_cppflags '-I\$(SRC_PATH)/compat/stdbit'
-
-# Check if requested libraries were found.
-for lib in $AUTODETECT_LIBS; do
-    requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
-done
-
-enabled zlib && add_cppflags -DZLIB_CONST
-
-# conditional library dependencies, in any order
-enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
-enabled aresample_filter    && prepend avfilter_deps "swresample"
-enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
-enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
-enabled elbg_filter         && prepend avfilter_deps "avcodec"
-enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
-enabled fsync_filter        && prepend avfilter_deps "avformat"
-enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
-enabled movie_filter        && prepend avfilter_deps "avformat avcodec"
-enabled pan_filter          && prepend avfilter_deps "swresample"
-enabled qrencode_filter     && prepend avfilter_deps "swscale"
-enabled qrencodesrc_filter  && prepend avfilter_deps "swscale"
-enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
-enabled sab_filter          && prepend avfilter_deps "swscale"
-enabled scale_filter        && prepend avfilter_deps "swscale"
-enabled scale2ref_filter    && prepend avfilter_deps "swscale"
-enabled showcqt_filter      && prepend avfilter_deps "avformat swscale"
-enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
-enabled smartblur_filter    && prepend avfilter_deps "swscale"
-enabled spp_filter          && prepend avfilter_deps "avcodec"
-enabled sr_filter           && prepend avfilter_deps "avformat swscale"
-enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
-enabled uspp_filter         && prepend avfilter_deps "avcodec"
-enabled zoompan_filter      && prepend avfilter_deps "swscale"
-
-enabled lavfi_indev         && prepend avdevice_deps "avfilter"
-
-enabled opus_decoder    && prepend avcodec_deps "swresample"
-
-# reorder the items at var $1 to align with the items order at var $2 .
-# die if an item at $1 is not at $2 .
-reorder_by(){
-    eval rb_in=\$$1
-    eval rb_ordered=\$$2
-
-    for rb in $rb_in; do
-        is_in $rb $rb_ordered || die "$rb at \$$1 is not at \$$2"
-    done
-
-    rb_out=
-    for rb in $rb_ordered; do
-        is_in $rb $rb_in && rb_out="$rb_out$rb "
-    done
-    eval $1=\$rb_out
-}
-
-# deps-expand fflib $1:  N x {append all expanded deps; unique}
-# within a set of N items, N expansions are enough to expose a cycle.
-expand_deps(){
-    unique ${1}_deps  # required for the early break test.
-    for dummy in $LIBRARY_LIST; do  # N iteratios
-        eval deps=\$${1}_deps
-        append ${1}_deps $(map 'eval echo \$${v}_deps' $deps)
-        unique ${1}_deps
-        eval '[ ${#deps} = ${#'${1}_deps'} ]' && break  # doesn't expand anymore
-    done
-
-    eval is_in $1 \$${1}_deps && die "Dependency cycle at ${1}_deps"
-    reorder_by ${1}_deps LIBRARY_LIST  # linking order is expected later
-}
-
-map 'expand_deps $v' $LIBRARY_LIST
-
-if test "$quiet" != "yes"; then
-
-echo "install prefix            $prefix"
-echo "source path               $source_path"
-echo "C compiler                $cc"
-echo "C library                 $libc_type"
-if test "$host_cc" != "$cc"; then
-    echo "host C compiler           $host_cc"
-    echo "host C library            $host_libc_type"
-fi
-echo "ARCH                      $arch ($cpu)"
-if test "$build_suffix" != ""; then
-    echo "build suffix              $build_suffix"
-fi
-if test "$progs_suffix" != ""; then
-    echo "progs suffix              $progs_suffix"
-fi
-if test "$extra_version" != ""; then
-    echo "version string suffix     $extra_version"
-fi
-echo "big-endian                ${bigendian-no}"
-echo "runtime cpu detection     ${runtime_cpudetect-no}"
-if enabled x86; then
-    echo "standalone assembly       ${x86asm-no}"
-    echo "x86 assembler             ${x86asmexe}"
-    echo "MMX enabled               ${mmx-no}"
-    echo "MMXEXT enabled            ${mmxext-no}"
-    echo "SSE enabled               ${sse-no}"
-    echo "SSSE3 enabled             ${ssse3-no}"
-    echo "AESNI enabled             ${aesni-no}"
-    echo "CLMUL enabled             ${clmul-no}"
-    echo "AVX enabled               ${avx-no}"
-    echo "AVX2 enabled              ${avx2-no}"
-    echo "AVX-512 enabled           ${avx512-no}"
-    echo "AVX-512ICL enabled        ${avx512icl-no}"
-    echo "XOP enabled               ${xop-no}"
-    echo "FMA3 enabled              ${fma3-no}"
-    echo "FMA4 enabled              ${fma4-no}"
-    echo "i686 features enabled     ${i686-no}"
-    echo "CMOV is fast              ${fast_cmov-no}"
-    echo "EBX available             ${ebx_available-no}"
-    echo "EBP available             ${ebp_available-no}"
-fi
-if enabled aarch64; then
-    echo "NEON enabled              ${neon-no}"
-    echo "DOTPROD enabled           ${dotprod-no}"
-    echo "I8MM enabled              ${i8mm-no}"
-    echo "SVE enabled               ${sve-no}"
-    echo "SVE2 enabled              ${sve2-no}"
-    echo "SME enabled               ${sme-no}"
-fi
-if enabled arm; then
-    echo "ARMv5TE enabled           ${armv5te-no}"
-    echo "ARMv6 enabled             ${armv6-no}"
-    echo "ARMv6T2 enabled           ${armv6t2-no}"
-    echo "VFP enabled               ${vfp-no}"
-    echo "NEON enabled              ${neon-no}"
-    echo "THUMB enabled             ${thumb-no}"
-fi
-if enabled mips; then
-    echo "MIPS FPU enabled          ${mipsfpu-no}"
-    echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
-    echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
-    echo "MIPS MSA enabled          ${msa-no}"
-    echo "LOONGSON MMI enabled      ${mmi-no}"
-fi
-if enabled ppc; then
-    echo "AltiVec enabled           ${altivec-no}"
-    echo "VSX enabled               ${vsx-no}"
-    echo "POWER8 enabled            ${power8-no}"
-    echo "PPC 4xx optimizations     ${ppc4xx-no}"
-    echo "dcbzl available           ${dcbzl-no}"
-    echo "vec_xl available          ${vec_xl-no}"
-fi
-if enabled loongarch; then
-    echo "LSX enabled               ${lsx-no}"
-    echo "LASX enabled              ${lasx-no}"
-fi
-if enabled riscv; then
-    echo "RISC-V CBO Prefetch       ${rv_zicbop-no}"
-    echo "RISC-V Vector enabled     ${rvv-no}"
-fi
-echo "debug symbols             ${debug-no}"
-echo "strip symbols             ${stripping-no}"
-echo "optimize for size         ${small-no}"
-echo "optimizations             ${optimizations-no}"
-echo "static                    ${static-no}"
-echo "shared                    ${shared-no}"
-echo "network support           ${network-no}"
-echo "threading support         ${thread_type-no}"
-echo "safe bitstream reader     ${safe_bitstream_reader-no}"
-echo "texi2html enabled         ${texi2html-no}"
-echo "perl enabled              ${perl-no}"
-echo "pod2man enabled           ${pod2man-no}"
-echo "makeinfo enabled          ${makeinfo-no}"
-echo "makeinfo supports HTML    ${makeinfo_html-no}"
-echo "experimental features     ${unstable-no}"
-echo "xmllint enabled           ${xmllint-no}"
-test -n "$random_seed" &&
-    echo "random seed               ${random_seed}"
-echo
-
-echo "External libraries:"
-print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns
-echo
-
-echo "External libraries providing hardware acceleration:"
-print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns
-echo
-
-echo "Libraries:"
-print_enabled '' $LIBRARY_LIST | print_in_columns
-echo
-
-echo "Programs:"
-print_enabled '' $PROGRAM_LIST | print_in_columns
-echo
-
-for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
-    echo "Enabled ${type}s:"
-    eval list=\$$(toupper $type)_LIST
-    print_enabled '_*' $list | print_in_columns
-    echo
-done
-
-if test -n "$ignore_tests"; then
-    ignore_tests=$(echo $ignore_tests | tr ',' ' ')
-    echo "Ignored FATE tests:"
-    echo $ignore_tests | print_in_columns
-    echo
-fi
-
-echo "License: $license"
-
-fi # test "$quiet" != "yes"
-
-if test -n "$WARN_IF_GETS_DISABLED_LIST"; then
-    for cfg in $WARN_IF_GETS_DISABLED_LIST; do
-        if disabled $cfg; then
-            varname=${cfg}_disable_reason
-            eval "warn \"Disabled $cfg because \$$varname\""
-        fi
-    done
-fi
-
-if test -n "$WARNINGS"; then
-    printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
-    enabled fatal_warnings && exit 1
-fi
-
-test -e Makefile || echo "include $source_path/Makefile" > Makefile
-
-esc(){
-    echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
-}
-
-echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
-
-enabled stripping || strip="echo skipping strip"
-enabled stripping || striptype=""
-
-config_files="$TMPH ffbuild/config.mak doc/config.texi"
-
-cat > ffbuild/config.mak <<EOF
-# Automatically generated by configure - do not modify!
-ifndef FFMPEG_CONFIG_MAK
-FFMPEG_CONFIG_MAK=1
-FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
-prefix=$prefix
-LIBDIR=\$(DESTDIR)$libdir
-SHLIBDIR=\$(DESTDIR)$shlibdir
-INCDIR=\$(DESTDIR)$incdir
-BINDIR=\$(DESTDIR)$bindir
-DATADIR=\$(DESTDIR)$datadir
-DOCDIR=\$(DESTDIR)$docdir
-MANDIR=\$(DESTDIR)$mandir
-PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
-INSTALL_NAME_DIR=$install_name_dir
-SRC_PATH=$source_path
-SRC_LINK=$source_link
-ifndef MAIN_MAKEFILE
-SRC_PATH:=\$(SRC_PATH:.%=..%)
-endif
-CC_IDENT=$cc_ident
-ARCH=$arch
-INTRINSICS=$intrinsics
-EXTERN_PREFIX=$extern_prefix
-CC=$cc
-CXX=$cxx
-AS=$as
-OBJCC=$objcc
-LD=$ld
-DEPCC=$dep_cc
-DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
-DEPCXX=$dep_cc
-DEPCXXFLAGS=$DEPCXXFLAGS \$(CPPFLAGS)
-DEPAS=$as
-DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
-X86ASM=$x86asmexe
-DEPX86ASM=$x86asmexe
-DEPX86ASMFLAGS=\$(X86ASMFLAGS)
-AR=$ar
-ARFLAGS=$arflags
-RESPONSE_FILES=$response_files
-AR_O=$ar_o
-AR_CMD=$ar
-NM_CMD=$nm
-GLSLC=$glslc
-METALCC=$metalcc
-METALLIB=$metallib
-RANLIB=$ranlib
-STRIP=$strip
-STRIPTYPE=$striptype
-NVCC=$nvcc
-CP=cp -p
-LN_S=$ln_s
-CPPFLAGS=$CPPFLAGS
-CFLAGS=$CFLAGS
-CXXFLAGS=$CXXFLAGS
-OBJCFLAGS=$OBJCFLAGS
-ASFLAGS=$ASFLAGS
-GLSLCFLAGS=$GLSLCFLAGS
-NVCCFLAGS=$nvccflags
-AS_C=$AS_C
-AS_O=$AS_O
-OBJCC_C=$OBJCC_C
-OBJCC_E=$OBJCC_E
-OBJCC_O=$OBJCC_O
-CC_C=$CC_C
-CC_E=$CC_E
-CC_O=$CC_O
-CXX_C=$CXX_C
-CXX_O=$CXX_O
-GLSLC_O=$GLSLC_O
-NVCC_C=$NVCC_C
-NVCC_O=$NVCC_O
-LD_O=$LD_O
-X86ASM_O=$X86ASM_O
-LD_LIB=$LD_LIB
-LD_PATH=$LD_PATH
-DLLTOOL=$dlltool
-WINDRES=$windres
-DOXYGEN=$doxygen
-LDFLAGS=$LDFLAGS
-LDEXEFLAGS=$LDEXEFLAGS
-LDSOFLAGS=$LDSOFLAGS
-SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
-ASMSTRIPFLAGS=$ASMSTRIPFLAGS
-X86ASMFLAGS=$X86ASMFLAGS
-MSAFLAGS=$MSAFLAGS
-MMIFLAGS=$MMIFLAGS
-LSXFLAGS=$LSXFLAGS
-LASXFLAGS=$LASXFLAGS
-BUILDSUF=$build_suffix
-PROGSSUF=$progs_suffix
-FULLNAME=$FULLNAME
-LIBPREF=$LIBPREF
-LIBSUF=$LIBSUF
-LIBNAME=$LIBNAME
-SLIBPREF=$SLIBPREF
-SLIBSUF=$SLIBSUF
-EXESUF=$EXESUF
-EXTRA_VERSION=$extra_version
-CCDEP=$CCDEP
-CXXDEP=$CXXDEP
-CCDEP_FLAGS=$CCDEP_FLAGS
-CXXDEP_FLAGS=$CXXDEP_FLAGS
-ASDEP=$ASDEP
-ASDEP_FLAGS=$ASDEP_FLAGS
-CC_DEPFLAGS=$CC_DEPFLAGS
-CXX_DEPFLAGS=$CXX_DEPFLAGS
-OBJCC_DEPFLAGS=$OBJC_DEPFLAGS
-AS_DEPFLAGS=$AS_DEPFLAGS
-X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
-GLSLC_DEPFLAGS=$GLSLC_DEPFLAGS
-HOSTCC=$host_cc
-HOSTLD=$host_ld
-HOSTCFLAGS=$host_cflags
-HOSTCPPFLAGS=$host_cppflags
-HOSTEXESUF=$HOSTEXESUF
-HOSTLDFLAGS=$host_ldflags
-HOSTEXTRALIBS=$host_extralibs
-DEPHOSTCC=$host_cc
-DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
-HOSTCCDEP=$HOSTCCDEP
-HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
-HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
-HOSTCC_C=$HOSTCC_C
-HOSTCC_O=$HOSTCC_O
-HOSTLD_O=$HOSTLD_O
-TARGET_EXEC=$target_exec $target_exec_args
-TARGET_PATH=$target_path
-TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
-CFLAGS-ffplay=${sdl2_cflags}
-CFLAGS_HEADERS=$CFLAGS_HEADERS
-LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
-EXTRALIBS=$extralibs
-COMPAT_OBJS=$compat_objs
-INSTALL=$install
-LIBTARGET=${LIBTARGET}
-SLIBNAME=${SLIBNAME}
-SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
-SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
-SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
-SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
-SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
-SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
-SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
-SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
-VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
-SAMPLES:=${samples:-\$(FATE_SAMPLES)}
-NOREDZONE_FLAGS=$noredzone_flags
-LIBFUZZER_PATH=$libfuzzer_path
-IGNORE_TESTS=$ignore_tests
-VERSION_TRACKING=$version_tracking
-EOF
-
-map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
-
-for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
-    eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak
-done
-
-cat > $TMPH <<EOF
-/* Automatically generated by configure - do not modify! */
-#ifndef FFMPEG_CONFIG_H
-#define FFMPEG_CONFIG_H
-#define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
-#define FFMPEG_LICENSE "$(c_escape $license)"
-#define CONFIG_THIS_YEAR 2026
-#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
-#define AVCONV_DATADIR "$(eval c_escape $datadir)"
-#define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
-#define OS_NAME $target_os
-#define EXTERN_PREFIX "${extern_prefix}"
-#define EXTERN_ASM ${extern_prefix}
-#define BUILDSUF "$build_suffix"
-#define SLIBSUF "$SLIBSUF"
-#define SWS_MAX_FILTER_SIZE $sws_max_filter_size
-EOF
-
-test -n "$assert_level" &&
-    echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
-
-test -n "$malloc_prefix" &&
-    echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
-
-enabled aarch64 &&
-    echo "#define AS_ARCH_LEVEL $as_arch_level" >>$TMPH
-
-if enabled x86asm; then
-    append config_files $TMPASM
-    cat > $TMPASM <<EOF
-; Automatically generated by configure - do not modify!
-EOF
-fi
-
-enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
-
-
-mkdir -p doc
-mkdir -p tests
-mkdir -p tests/api
-echo "@c auto-generated by configure - do not modify! " > doc/config.texi
-
-print_config ARCH_   "$config_files" $ARCH_LIST
-print_config HAVE_   "$config_files" $HAVE_LIST
-print_config CONFIG_ "$config_files" $CONFIG_LIST       \
-                                     $CONFIG_EXTRA      \
-
-echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
-
-# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
-cp_if_changed $TMPH config.h
-touch ffbuild/.config
-
-# Copy config.asm and reopen a new TMPASM for config_components.asm
-enabled x86asm && cp_if_changed $TMPASM config.asm && cat > $TMPASM <<EOF
-; Automatically generated by configure - do not modify!
-EOF
-
-# Reopen a new TMPH for config_components.h.
-cat > $TMPH <<EOF
-/* Automatically generated by configure - do not modify! */
-#ifndef FFMPEG_CONFIG_COMPONENTS_H
-#define FFMPEG_CONFIG_COMPONENTS_H
-EOF
-
-print_config CONFIG_ "$config_files" $ALL_COMPONENTS
-
-echo "#endif /* FFMPEG_CONFIG_COMPONENTS_H */" >> $TMPH
-echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
-
-cp_if_changed $TMPH config_components.h
-enabled x86asm && cp_if_changed $TMPASM config_components.asm
-
-cat > $TMPH <<EOF
-/* Generated by ffmpeg configure */
-#ifndef AVUTIL_AVCONFIG_H
-#define AVUTIL_AVCONFIG_H
-EOF
-
-print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
-
-echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
-
-cp_if_changed $TMPH libavutil/avconfig.h
-
-# full_filter_name_foo=vf_foo
-# full_filter_name_bar=asrc_bar
-# ...
-eval "$(sed -n "s/^extern const FFFilter ff_\([avfsinkrc]\{2,5\}\)_\(.*\);/full_filter_name_\2=\1_\2/p" $source_path/libavfilter/allfilters.c)"
-
-# generate the lists of enabled components
-print_enabled_components(){
-    file=$1
-    struct_name=$2
-    name=$3
-    shift 3
-    echo "static const $struct_name * const $name[] = {" > $TMPH
-    for c in $*; do
-        if enabled $c; then
-            case $name in
-                filter_list)
-                    eval c=\$full_filter_name_${c%_filter}
-                ;;
-                indev_list)
-                    c=${c%_indev}_demuxer
-                ;;
-                outdev_list)
-                    c=${c%_outdev}_muxer
-                ;;
-            esac
-            printf "    &ff_%s,\n" $c >> $TMPH
-        fi
-    done
-    if [ "$name" = "filter_list" ]; then
-        for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do
-            printf "    &ff_%s,\n" $c >> $TMPH
-        done
-    fi
-    echo "    NULL };" >> $TMPH
-    cp_if_changed $TMPH $file
-}
-
-print_enabled_components libavfilter/filter_list.c FFFilter filter_list $FILTER_LIST
-print_enabled_components libavcodec/codec_list.c FFCodec codec_list $CODEC_LIST
-print_enabled_components libavcodec/parser_list.c FFCodecParser parser_list $PARSER_LIST
-print_enabled_components libavcodec/bsf_list.c FFBitStreamFilter bitstream_filters $BSF_LIST
-print_enabled_components libavformat/demuxer_list.c FFInputFormat demuxer_list $DEMUXER_LIST
-print_enabled_components libavformat/muxer_list.c FFOutputFormat muxer_list $MUXER_LIST
-print_enabled_components libavdevice/indev_list.c FFInputFormat indev_list $INDEV_LIST
-print_enabled_components libavdevice/outdev_list.c FFOutputFormat outdev_list $OUTDEV_LIST
-print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
-
-# Settings for pkg-config files
-
-cat > $TMPH <<EOF
-# Automatically generated by configure - do not modify!
-shared=$shared
-build_suffix=$build_suffix
-prefix=$prefix
-libdir=$libdir
-incdir=$incdir
-rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
-source_path=${source_path}
-LIBPREF=${LIBPREF}
-LIBSUF=${LIBSUF}
-extralibs_avutil="$avutil_extralibs"
-extralibs_avcodec="$avcodec_extralibs"
-extralibs_avformat="$avformat_extralibs"
-extralibs_avdevice="$avdevice_extralibs"
-extralibs_avfilter="$avfilter_extralibs"
-extralibs_swscale="$swscale_extralibs"
-extralibs_swresample="$swresample_extralibs"
-EOF
-
-for lib in $LIBRARY_LIST; do
-    lib_deps="$(eval echo \$${lib}_deps)"
-    echo ${lib}_deps=\"$lib_deps\" >> $TMPH
-done
-
-cp_if_changed $TMPH ffbuild/config.sh
diff --git a/ffbuild/.gitignore b/ffbuild/.gitignore
deleted file mode 100644
index adaf399e9f..0000000000
--- a/ffbuild/.gitignore
+++ /dev/null
@@ -1,7 +0,0 @@
-/.config
-/bin2c
-/bin2c.exe
-/config.fate
-/config.log
-/config.mak
-/config.sh
diff --git a/ffbuild/arch.mak b/ffbuild/arch.mak
deleted file mode 100644
index 83d6bf276f..0000000000
--- a/ffbuild/arch.mak
+++ /dev/null
@@ -1,27 +0,0 @@
-OBJS-$(HAVE_ARMV5TE) += $(ARMV5TE-OBJS) $(ARMV5TE-OBJS-yes)
-OBJS-$(HAVE_ARMV6)   += $(ARMV6-OBJS)   $(ARMV6-OBJS-yes)
-OBJS-$(HAVE_ARMV8)   += $(ARMV8-OBJS)   $(ARMV8-OBJS-yes)
-OBJS-$(HAVE_VFP)     += $(VFP-OBJS)     $(VFP-OBJS-yes)
-OBJS-$(HAVE_NEON)    += $(NEON-OBJS)    $(NEON-OBJS-yes)
-OBJS-$(HAVE_SVE)     += $(SVE-OBJS)     $(SVE-OBJS-yes)
-OBJS-$(HAVE_SVE2)    += $(SVE2-OBJS)    $(SVE2-OBJS-yes)
-OBJS-$(HAVE_SME)     += $(SME-OBJS)     $(SME-OBJS-yes)
-
-OBJS-$(HAVE_MIPSFPU)   += $(MIPSFPU-OBJS)    $(MIPSFPU-OBJS-yes)
-OBJS-$(HAVE_MIPSDSP)   += $(MIPSDSP-OBJS)    $(MIPSDSP-OBJS-yes)
-OBJS-$(HAVE_MIPSDSPR2) += $(MIPSDSPR2-OBJS)  $(MIPSDSPR2-OBJS-yes)
-OBJS-$(HAVE_MSA)       += $(MSA-OBJS)        $(MSA-OBJS-yes)
-OBJS-$(HAVE_MMI)       += $(MMI-OBJS)        $(MMI-OBJS-yes)
-OBJS-$(HAVE_LSX)       += $(LSX-OBJS)        $(LSX-OBJS-yes)
-OBJS-$(HAVE_LASX)      += $(LASX-OBJS)       $(LASX-OBJS-yes)
-
-OBJS-$(HAVE_ALTIVEC) += $(ALTIVEC-OBJS) $(ALTIVEC-OBJS-yes)
-OBJS-$(HAVE_VSX)     += $(VSX-OBJS) $(VSX-OBJS-yes)
-
-OBJS-$(HAVE_RV)      += $(RV-OBJS)      $(RV-OBJS-yes)
-OBJS-$(HAVE_RVV)     += $(RVV-OBJS)     $(RVV-OBJS-yes)
-OBJS-$(HAVE_RV_ZVBB) += $(RVVB-OBJS)    $(RVVB-OBJS-yes)
-
-OBJS-$(HAVE_SIMD128) += $(SIMD128-OBJS) $(SIMD128-OBJS-yes)
-
-OBJS-$(HAVE_X86ASM)  += $(X86ASM-OBJS)  $(X86ASM-OBJS-yes)
diff --git a/ffbuild/bin2c.c b/ffbuild/bin2c.c
deleted file mode 100644
index 91f2d81e5b..0000000000
--- a/ffbuild/bin2c.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * This file is part of FFmpeg.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-#include <string.h>
-#include <stdio.h>
-
-int main(int argc, char **argv)
-{
-    const char *name;
-    FILE *input, *output;
-    unsigned int length = 0;
-    unsigned char data;
-
-    if (argc < 3 || argc > 4)
-        return 1;
-
-    input = fopen(argv[1], "rb");
-    if (!input)
-        return -1;
-
-    output = fopen(argv[2], "wb");
-    if (!output) {
-        fclose(input);
-        return -1;
-    }
-
-    if (argc == 4) {
-        name = argv[3];
-    } else {
-        size_t arglen = strlen(argv[1]);
-        name = argv[1];
-
-        for (int i = 0; i < arglen; i++) {
-            if (argv[1][i] == '.')
-                argv[1][i] = '_';
-            else if (argv[1][i] == '/')
-                name = &argv[1][i+1];
-        }
-    }
-
-    fprintf(output, "const unsigned char ff_%s_data[] = { ", name);
-
-    while (fread(&data, 1, 1, input) > 0) {
-        fprintf(output, "0x%02x, ", data);
-        length++;
-    }
-
-    fprintf(output, "0x00 };\n");
-    fprintf(output, "const unsigned int ff_%s_len = %u;\n", name, length);
-
-    fclose(output);
-
-    if (ferror(input) || !feof(input)) {
-        fclose(input);
-        return -1;
-    }
-
-    fclose(input);
-
-    return 0;
-}
diff --git a/ffbuild/common.mak b/ffbuild/common.mak
deleted file mode 100644
index 06d6f39715..0000000000
--- a/ffbuild/common.mak
+++ /dev/null
@@ -1,279 +0,0 @@
-#
-# common bits used by all libraries
-#
-
-DEFAULT_X86ASMD=.dbg
-
-ifeq ($(DBG),1)
-X86ASMD=$(DEFAULT_X86ASMD)
-else
-X86ASMD=
-endif
-
-ifndef SUBDIR
-
-LINK = $(LD) $(1)
-
-ifeq ($(LD),$(CC))
-ifneq ($(CXX),)
-LDXX := $(CXX)
-LINK = $(if $(filter -lstdc++,$(1)),$(LDXX) $(filter-out -lstdc++,$(1)),$(LD) $(1))
-endif
-endif
-
-BIN2CEXE = ffbuild/bin2c$(HOSTEXESUF)
-BIN2C = $(BIN2CEXE)
-
-ifndef V
-Q      = @
-ECHO   = printf "$(1)\t%s\n" $(2)
-BRIEF  = CC CXX OBJCC HOSTCC HOSTLD AS X86ASM AR LD LDXX STRIP CP WINDRES GLSLC NVCC BIN2C METALCC METALLIB
-SILENT = DEPCC DEPCXX DEPHOSTCC DEPAS DEPX86ASM RANLIB RM
-
-MSG    = $@
-M      = @$(call ECHO,$(TAG),$@);
-$(foreach VAR,$(BRIEF), \
-    $(eval override $(VAR) = @$$(call ECHO,$(VAR),$$(MSG)); $($(VAR))))
-$(foreach VAR,$(SILENT),$(eval override $(VAR) = @$($(VAR))))
-$(eval INSTALL = @$(call ECHO,INSTALL,$$(^:$(SRC_DIR)/%=%)); $(INSTALL))
-endif
-
-# Prepend to a recursively expanded variable without making it simply expanded.
-PREPEND = $(eval $(1) = $(patsubst %,$$(%), $(2)) $(value $(1)))
-
-# NASM requires -I path terminated with /
-IFLAGS     := -I. -I$(SRC_LINK)/
-CPPFLAGS   := $(IFLAGS) $(CPPFLAGS)
-CFLAGS     += $(ECFLAGS)
-CCFLAGS     = $(CPPFLAGS) $(CFLAGS)
-OBJCFLAGS  += $(EOBJCFLAGS)
-OBJCCFLAGS  = $(CPPFLAGS) $(CFLAGS) $(OBJCFLAGS)
-ASFLAGS    := $(CPPFLAGS) $(ASFLAGS)
-# Use PREPEND here so that later (target-dependent) additions to CPPFLAGS
-# end up in CXXFLAGS.
-$(call PREPEND,CXXFLAGS, CPPFLAGS)
-X86ASMFLAGS += $(IFLAGS:%=%/) -I$(<D)/ -Pconfig.asm
-
-HOSTCCFLAGS = $(IFLAGS) $(HOSTCPPFLAGS) $(HOSTCFLAGS)
-LDFLAGS    := $(ALLFFLIBS:%=$(LD_PATH)lib%) $(LDFLAGS)
-
-define COMPILE
-       $(call $(1)DEP,$(1))
-       $($(1)) $($(1)FLAGS) $($(2)) $($(1)_DEPFLAGS) $($(1)_C) $($(1)_O) $(patsubst $(SRC_PATH)/%,$(SRC_LINK)/%,$<)
-endef
-
-COMPILE_C = $(call COMPILE,CC)
-COMPILE_CXX = $(call COMPILE,CXX)
-COMPILE_S = $(call COMPILE,AS)
-COMPILE_M = $(call COMPILE,OBJCC)
-COMPILE_X86ASM = $(call COMPILE,X86ASM)
-COMPILE_HOSTC = $(call COMPILE,HOSTCC)
-COMPILE_GLSLC = $(call COMPILE,GLSLC)
-COMPILE_NVCC = $(call COMPILE,NVCC)
-COMPILE_MMI = $(call COMPILE,CC,MMIFLAGS)
-COMPILE_MSA = $(call COMPILE,CC,MSAFLAGS)
-COMPILE_LSX = $(call COMPILE,CC,LSXFLAGS)
-COMPILE_LASX = $(call COMPILE,CC,LASXFLAGS)
-
-%_mmi.o: %_mmi.c
-	$(COMPILE_MMI)
-
-%_msa.o: %_msa.c
-	$(COMPILE_MSA)
-
-%_lsx.o: %_lsx.c
-	$(COMPILE_LSX)
-
-%_lasx.o: %_lasx.c
-	$(COMPILE_LASX)
-
-%.o: %.c
-	$(COMPILE_C)
-
-%.o: %.cpp
-	$(COMPILE_CXX)
-
-%.o: %.m
-	$(COMPILE_M)
-
-%.s: %.c
-	$(CC) $(CCFLAGS) -S -o $@ $<
-
-%.o: %.S
-	$(COMPILE_S)
-
-%_host.o: %.c
-	$(COMPILE_HOSTC)
-
-%$(DEFAULT_X86ASMD).asm: %.asm
-	$(DEPX86ASM) $(X86ASMFLAGS) -M -o $@ $< > $(@:.asm=.d)
-	$(X86ASM) $(X86ASMFLAGS) -e $< | sed '/^%/d;/^$$/d;' > $@
-
-%.o: %.asm
-	$(COMPILE_X86ASM)
-	-$(if $(ASMSTRIPFLAGS), $(STRIP) $(ASMSTRIPFLAGS) $@)
-
-%.o: %.rc
-	$(WINDRES) $(IFLAGS) $(foreach ARG,$(CC_DEPFLAGS),--preprocessor-arg "$(ARG)") -o $@ $<
-
-%.i: %.c
-	$(CC) $(CCFLAGS) $(CC_E) $<
-
-%.h.c:
-	$(Q)echo '#include "$*.h"' >$@
-
-$(BIN2CEXE): ffbuild/bin2c_host.o
-	$(HOSTLD) $(HOSTLDFLAGS) $(HOSTLD_O) $^ $(HOSTEXTRALIBS)
-
-RUN_BIN2C = $(BIN2C) $(patsubst $(SRC_PATH)/%,$(SRC_LINK)/%,$<) $@ $(subst .,_,$(basename $(notdir $@)))
-RUN_GZIP  = $(M)gzip -nc9 $(patsubst $(SRC_PATH)/%,$(SRC_LINK)/%,$<) >$@
-RUN_MINIFY = $(M)sed 's!/\\*.*\\*/!!g' $< | tr '\n' ' ' | tr -s ' ' | sed 's/^ //; s/ $$//' > $@
-%.gz: TAG = GZIP
-%.min: TAG = MINIFY
-
-%.spv: %.glsl
-	$(COMPILE_GLSLC)
-
-ifdef CONFIG_SHADER_COMPRESSION
-%.spv.gz: %.spv
-	$(RUN_GZIP)
-
-%.spv.c: %.spv.gz $(BIN2CEXE)
-	$(RUN_BIN2C)
-else
-%.spv.c: %.spv $(BIN2CEXE)
-	$(RUN_BIN2C)
-endif
-
-%.metal.air: %.metal
-	$(METALCC) $< -o $@
-
-%.metallib: %.metal.air
-	$(METALLIB) --split-module-without-linking $< -o $@
-
-%.metallib.c: %.metallib $(BIN2CEXE)
-	$(RUN_BIN2C)
-
-%.ptx: %.cu $(SRC_PATH)/compat/cuda/cuda_runtime.h
-	$(COMPILE_NVCC)
-
-ifdef CONFIG_SHADER_COMPRESSION
-%.ptx.gz: %.ptx
-	$(RUN_GZIP)
-
-%.ptx.c: %.ptx.gz $(BIN2CEXE)
-	$(RUN_BIN2C)
-else
-%.ptx.c: %.ptx $(BIN2CEXE)
-	$(RUN_BIN2C)
-endif
-
-%.css.min: %.css
-	$(RUN_MINIFY)
-
-ifdef CONFIG_RESOURCE_COMPRESSION
-
-%.css.min.gz: %.css.min
-	$(RUN_GZIP)
-
-%.css.c: %.css.min.gz $(BIN2CEXE)
-	$(RUN_BIN2C)
-
-%.html.gz: %.html
-	$(RUN_GZIP)
-
-%.html.c: %.html.gz $(BIN2CEXE)
-	$(RUN_BIN2C)
-
-else   # NO COMPRESSION
-
-%.css.c: %.css.min $(BIN2CEXE)
-	$(RUN_BIN2C)
-
-%.html.c: %.html $(BIN2CEXE)
-	$(RUN_BIN2C)
-endif
-
-clean::
-	$(RM) $(BIN2CEXE) $(CLEANSUFFIXES:%=ffbuild/%)
-
-%.c %.h %.pc %.ver %.version: TAG = GEN
-
-# Dummy rule to stop make trying to rebuild removed or renamed headers
-%.h %_template.c:
-	@:
-
-# Disable suffix rules.  Most of the builtin rules are suffix rules,
-# so this saves some time on slow systems.
-.SUFFIXES:
-
-# Do not delete intermediate files from chains of implicit rules
-$(OBJS):
-endif
-
-include $(SRC_PATH)/ffbuild/arch.mak
-
-OBJS      += $(OBJS-yes)
-SHLIBOBJS += $(SHLIBOBJS-yes)
-STLIBOBJS += $(STLIBOBJS-yes)
-FFLIBS    := $($(NAME)_FFLIBS) $(FFLIBS-yes) $(FFLIBS)
-TESTPROGS += $(TESTPROGS-yes)
-
-LDLIBS       = $(FFLIBS:%=%$(BUILDSUF))
-FFEXTRALIBS := $(LDLIBS:%=$(LD_LIB)) $(foreach lib,EXTRALIBS-$(NAME) $(FFLIBS:%=EXTRALIBS-%),$($(lib))) $(EXTRALIBS)
-
-OBJS      := $(sort $(OBJS:%=$(SUBDIR)%))
-SHLIBOBJS := $(sort $(SHLIBOBJS:%=$(SUBDIR)%))
-STLIBOBJS := $(sort $(STLIBOBJS:%=$(SUBDIR)%))
-TESTOBJS  := $(TESTOBJS:%=$(SUBDIR)tests/%) $(TESTPROGS:%=$(SUBDIR)tests/%.o)
-TESTPROGS := $(TESTPROGS:%=$(SUBDIR)tests/%$(EXESUF))
-HOSTOBJS  := $(HOSTPROGS:%=$(SUBDIR)%.o)
-HOSTPROGS := $(HOSTPROGS:%=$(SUBDIR)%$(HOSTEXESUF))
-TOOLS     += $(TOOLS-yes)
-TOOLOBJS  := $(TOOLS:%=tools/%.o)
-TOOLS     := $(TOOLS:%=tools/%$(EXESUF))
-HEADERS   += $(HEADERS-yes)
-
-PATH_LIBNAME = $(foreach NAME,$(1),lib$(NAME)/$($(2)LIBNAME))
-DEP_LIBS := $(foreach lib,$(FFLIBS),$(call PATH_LIBNAME,$(lib),$(CONFIG_SHARED:yes=S)))
-STATIC_DEP_LIBS := $(foreach lib,$(FFLIBS),$(call PATH_LIBNAME,$(lib)))
-
-SRC_DIR    := $(SRC_PATH)/lib$(NAME)
-ALLHEADERS := $(subst $(SRC_DIR)/,$(SUBDIR),$(wildcard $(SRC_DIR)/*.h $(SRC_DIR)/$(ARCH)/*.h))
-SKIPHEADERS += $(ARCH_HEADERS:%=$(ARCH)/%) $(SKIPHEADERS-)
-SKIPHEADERS := $(SKIPHEADERS:%=$(SUBDIR)%)
-HOBJS        = $(filter-out $(SKIPHEADERS:.h=.h.o),$(ALLHEADERS:.h=.h.o))
-SPVOBJS      = $(filter %.spv.o,$(OBJS))
-PTXOBJS      = $(filter %.ptx.o,$(OBJS))
-$(HOBJS):     CCFLAGS += $(CFLAGS_HEADERS)
-checkheaders: $(HOBJS)
-.SECONDARY:   $(HOBJS:.o=.c) $(SPVOBJS:.o=.c) $(SPVOBJS:.o=.gz) $(SPVOBJS:.o=) $(PTXOBJS:.o=.c) $(PTXOBJS:.o=.gz) $(PTXOBJS:.o=)
-alltools: $(TOOLS)
-
-$(HOSTOBJS): %.o: %.c
-	$(COMPILE_HOSTC)
-
-$(HOSTPROGS): %$(HOSTEXESUF): %.o
-	$(HOSTLD) $(HOSTLDFLAGS) $(HOSTLD_O) $^ $(HOSTEXTRALIBS)
-
-$(OBJS):     | $(sort $(dir $(OBJS)))
-$(HOBJS):    | $(sort $(dir $(HOBJS)))
-$(HOSTOBJS): | $(sort $(dir $(HOSTOBJS)))
-$(SHLIBOBJS): | $(sort $(dir $(SHLIBOBJS)))
-$(STLIBOBJS): | $(sort $(dir $(STLIBOBJS)))
-$(TESTOBJS): | $(sort $(dir $(TESTOBJS)))
-$(TOOLOBJS): | tools
-
-OUTDIRS := $(OUTDIRS) $(dir $(OBJS) $(HOBJS) $(HOSTOBJS) $(SHLIBOBJS) $(STLIBOBJS) $(TESTOBJS))
-
-CLEANSUFFIXES     = *.d *.gcda *.gcno *.h.c *.ho *.map *.o *.objs *.pc *.ptx *.ptx.gz *.ptx.c *.spv *.spv.gz *.spv.c *.ver *.version *.html.gz *.html.c *.css.min.gz *.css.min *.css.c  *$(DEFAULT_X86ASMD).asm *~ *.ilk *.pdb
-LIBSUFFIXES       = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a
-
-define RULES
-clean::
-	$(RM) $(HOSTPROGS) $(TESTPROGS) $(TOOLS)
-endef
-
-$(eval $(RULES))
-
--include $(wildcard $(OBJS:.o=.d) $(HOSTOBJS:.o=.d) $(TESTOBJS:.o=.d) $(HOBJS:.o=.d) $(SHLIBOBJS:.o=.d) $(STLIBOBJS:.o=.d) $(SPVOBJS:.spv.o=.d)) $(OBJS:.o=$(DEFAULT_X86ASMD).d)
diff --git a/ffbuild/library.mak b/ffbuild/library.mak
deleted file mode 100644
index 91daa9c25f..0000000000
--- a/ffbuild/library.mak
+++ /dev/null
@@ -1,139 +0,0 @@
-include $(SRC_PATH)/ffbuild/common.mak
-
-ifeq (,$(filter %clean config,$(MAKECMDGOALS)))
--include $(SUBDIR)lib$(NAME).version
-endif
-
-LIBVERSION := $(lib$(NAME)_VERSION)
-LIBMAJOR   := $(lib$(NAME)_VERSION_MAJOR)
-LIBMINOR   := $(lib$(NAME)_VERSION_MINOR)
-INCINSTDIR := $(INCDIR)/lib$(NAME)
-
-INSTHEADERS := $(INSTHEADERS) $(HEADERS:%=$(SUBDIR)%)
-
-all-$(CONFIG_STATIC): $(SUBDIR)$(LIBNAME)  $(SUBDIR)lib$(FULLNAME).pc
-all-$(CONFIG_SHARED): $(SUBDIR)$(SLIBNAME) $(SUBDIR)lib$(FULLNAME).pc
-
-LIBOBJS := $(OBJS) $(SHLIBOBJS) $(STLIBOBJS) $(SUBDIR)%.h.o $(TESTOBJS)
-$(LIBOBJS) $(LIBOBJS:.o=.s) $(LIBOBJS:.o=.i):   CPPFLAGS += -DHAVE_AV_CONFIG_H
-
-ifdef CONFIG_SHARED
-# In case both shared libs and static libs are enabled, it can happen
-# that a user might want to link e.g. libavformat statically, but
-# libavcodec and the other libs dynamically. In this case
-# libavformat won't be able to access libavcodec's internal symbols,
-# so that they have to be duplicated into the archive just like
-# for purely shared builds.
-# Test programs are always statically linked against their library
-# to be able to access their library's internals, even with shared builds.
-# Yet linking against dependent libraries still uses dynamic linking.
-# This means that we are in the scenario described above.
-# In case only static libs are used, the linker will only use
-# one of these copies; this depends on the duplicated object files
-# containing exactly the same symbols.
-OBJS += $(SHLIBOBJS)
-endif
-$(SUBDIR)$(LIBNAME): $(OBJS) $(STLIBOBJS)
-	$(RM) $@
-ifeq ($(RESPONSE_FILES),yes)
-	$(Q)echo $^ > $@.objs
-	$(AR) $(ARFLAGS) $(AR_O) @$@.objs
-else
-	$(AR) $(ARFLAGS) $(AR_O) $^
-endif
-	$(RANLIB) $@
-	-$(RM) $@.objs
-
-install-headers: install-lib$(NAME)-headers install-lib$(NAME)-pkgconfig
-
-install-libs-$(CONFIG_STATIC): install-lib$(NAME)-static
-install-libs-$(CONFIG_SHARED): install-lib$(NAME)-shared
-
-define RULES
-$(TOOLS):     THISLIB = $(FULLNAME:%=$(LD_LIB))
-$(TESTPROGS): THISLIB = $(SUBDIR)$(LIBNAME)
-
-$(LIBOBJS): CPPFLAGS += -DBUILDING_$(NAME)
-
-$(NAME)LINK_EXE_ARGS = $(LDFLAGS) $(LDEXEFLAGS)
-$(NAME)LINK_SO_ARGS = $(SHFLAGS) $(LDFLAGS) $(LDSOFLAGS)
-$(NAME)LINK_EXTRA = $(FFEXTRALIBS)
-
-$(TESTPROGS) $(TOOLS): %$(EXESUF): %.o
-	$$(call LINK,$$(call $(NAME)LINK_EXE_ARGS) $$(LD_O) $$(filter %.o,$$^) $$(THISLIB) $$(call $(NAME)LINK_EXTRA) $$(EXTRALIBS-$$(*F)) $$(ELIBS))
-
-$(SUBDIR)lib$(NAME).version: $(SUBDIR)version.h $(SUBDIR)version_major.h | $(SUBDIR)
-	$$(M) $$(SRC_PATH)/ffbuild/libversion.sh $(NAME) $$^ > $$@
-
-$(SUBDIR)lib$(FULLNAME).pc: $(SUBDIR)version.h ffbuild/config.sh | $(SUBDIR)
-	$$(M) $$(SRC_PATH)/ffbuild/pkgconfig_generate.sh $(NAME) "$(DESC)"
-
-$(SUBDIR)lib$(NAME).ver: $(SUBDIR)lib$(NAME).v $(OBJS)
-	$$(M)sed 's/MAJOR/$(lib$(NAME)_VERSION_MAJOR)/' $$< | $(VERSION_SCRIPT_POSTPROCESS_CMD) > $$@
-
-$(SUBDIR)$(SLIBNAME): $(SUBDIR)$(SLIBNAME_WITH_MAJOR)
-	$(Q)cd ./$(SUBDIR) && $(LN_S) $(SLIBNAME_WITH_MAJOR) $(SLIBNAME)
-
-$(SUBDIR)$(SLIBNAME_WITH_MAJOR): $(OBJS) $(SHLIBOBJS) $(SUBDIR)lib$(NAME).ver
-	$(SLIB_CREATE_DEF_CMD)
-ifeq ($(RESPONSE_FILES),yes)
-	$(Q)echo $$(filter %.o,$$^) > $$@.objs
-	$$(call LINK,$$(call $(NAME)LINK_SO_ARGS) $$(LD_O) @$$@.objs $$(call $(NAME)LINK_EXTRA))
-else
-	$$(call LINK,$$(call $(NAME)LINK_SO_ARGS) $$(LD_O) $$(filter %.o,$$^) $$(call $(NAME)LINK_EXTRA))
-endif
-	$(SLIB_EXTRA_CMD)
-	-$(RM) $$@.objs
-
-ifdef SUBDIR
-$(SUBDIR)$(SLIBNAME_WITH_MAJOR): $(DEP_LIBS)
-endif
-
-clean::
-	$(RM) $(addprefix $(SUBDIR),$(CLEANFILES) $(CLEANSUFFIXES) $(LIBSUFFIXES)) \
-	    $(CLEANSUFFIXES:%=$(SUBDIR)$(ARCH)/%) $(CLEANSUFFIXES:%=$(SUBDIR)tests/%)
-
-install-lib$(NAME)-shared: $(SUBDIR)$(SLIBNAME)
-	$(Q)mkdir -p "$(SHLIBDIR)"
-	$$(INSTALL) -m 755 $$< "$(SHLIBDIR)/$(SLIB_INSTALL_NAME)"
-	$$(STRIP) "$(SHLIBDIR)/$(SLIB_INSTALL_NAME)"
-	$(Q)$(foreach F,$(SLIB_INSTALL_LINKS),(cd "$(SHLIBDIR)" && $(LN_S) $(SLIB_INSTALL_NAME) $(F));)
-	$(if $(SLIB_INSTALL_EXTRA_SHLIB),$$(INSTALL) -m 644 $(SLIB_INSTALL_EXTRA_SHLIB:%=$(SUBDIR)%) "$(SHLIBDIR)")
-	$(if $(SLIB_INSTALL_EXTRA_LIB),$(Q)mkdir -p "$(LIBDIR)")
-	$(if $(SLIB_INSTALL_EXTRA_LIB),$$(INSTALL) -m 644 $(SLIB_INSTALL_EXTRA_LIB:%=$(SUBDIR)%) "$(LIBDIR)")
-
-install-lib$(NAME)-static: $(SUBDIR)$(LIBNAME)
-	$(Q)mkdir -p "$(LIBDIR)"
-	$$(INSTALL) -m 644 $$< "$(LIBDIR)"
-	$(LIB_INSTALL_EXTRA_CMD)
-
-install-lib$(NAME)-headers: $(addprefix $(SUBDIR),$(HEADERS) $(BUILT_HEADERS))
-	$(Q)mkdir -p "$(INCINSTDIR)"
-	$$(INSTALL) -m 644 $$^ "$(INCINSTDIR)"
-
-install-lib$(NAME)-pkgconfig: $(SUBDIR)lib$(FULLNAME).pc
-	$(Q)mkdir -p "$(PKGCONFIGDIR)"
-	$$(INSTALL) -m 644 $$^ "$(PKGCONFIGDIR)"
-
-uninstall-libs::
-	-$(RM) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR)" \
-	       "$(SHLIBDIR)/$(SLIBNAME)"            \
-	       "$(SHLIBDIR)/$(SLIBNAME_WITH_VERSION)"
-	-$(RM)  $(SLIB_INSTALL_EXTRA_SHLIB:%="$(SHLIBDIR)/%")
-	-$(RM)  $(SLIB_INSTALL_EXTRA_LIB:%="$(LIBDIR)/%")
-	-$(RM) "$(LIBDIR)/$(LIBNAME)"
-
-uninstall-headers::
-	$(RM) $(addprefix "$(INCINSTDIR)/",$(HEADERS) $(BUILT_HEADERS))
-	-rmdir "$(INCINSTDIR)"
-
-uninstall-pkgconfig::
-	$(RM) "$(PKGCONFIGDIR)/lib$(FULLNAME).pc"
-endef
-
-$(eval $(RULES))
-
-$(TOOLS):     $(DEP_LIBS) $(SUBDIR)$($(CONFIG_SHARED:yes=S)LIBNAME)
-$(TESTPROGS): $(DEP_LIBS) $(SUBDIR)$(LIBNAME)
-
-testprogs: $(TESTPROGS)
diff --git a/ffbuild/libversion.sh b/ffbuild/libversion.sh
deleted file mode 100755
index ecaa90cde6..0000000000
--- a/ffbuild/libversion.sh
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/bin/sh
-toupper(){
-    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
-}
-
-name=lib$1
-ucname=$(toupper ${name})
-file=$2
-file2=$3
-
-eval $(awk "/#define ${ucname}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
-if [ -f "$file2" ]; then
-  eval $(awk "/#define ${ucname}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file2")
-fi
-eval ${ucname}_VERSION=\$${ucname}_VERSION_MAJOR.\$${ucname}_VERSION_MINOR.\$${ucname}_VERSION_MICRO
-eval echo "${name}_VERSION=\$${ucname}_VERSION"
-eval echo "${name}_VERSION_MAJOR=\$${ucname}_VERSION_MAJOR"
-eval echo "${name}_VERSION_MINOR=\$${ucname}_VERSION_MINOR"
diff --git a/ffbuild/pkgconfig_generate.sh b/ffbuild/pkgconfig_generate.sh
deleted file mode 100755
index fc6af774a6..0000000000
--- a/ffbuild/pkgconfig_generate.sh
+++ /dev/null
@@ -1,62 +0,0 @@
-#!/bin/sh
-
-. ffbuild/config.sh
-
-if test "$shared" = "yes"; then
-    shared=true
-else
-    shared=false
-fi
-
-shortname=$1
-name=lib${shortname}
-fullname=${name}${build_suffix}
-comment=$2
-libs=$(eval echo \$extralibs_${shortname})
-deps=$(eval echo \$${shortname}_deps)
-
-for dep in $deps; do
-    depname=lib${dep}
-    fulldepname=${depname}${build_suffix}
-    . ${depname}/${depname}.version
-    depversion=$(eval echo \$${depname}_VERSION)
-    requires="$requires ${fulldepname} >= ${depversion}, "
-done
-requires=${requires%, }
-
-version=$(grep ${name}_VERSION= $name/${name}.version | cut -d= -f2)
-
-cat <<EOF > $name/$fullname.pc
-prefix=$prefix
-exec_prefix=\${prefix}
-libdir=$libdir
-includedir=$incdir
-
-Name: $fullname
-Description: $comment
-Version: $version
-Requires: $($shared || echo $requires)
-Requires.private: $($shared && echo $requires)
-Conflicts:
-Libs: -L\${libdir} $rpath -l${fullname#lib} $($shared || echo $libs)
-Libs.private: $($shared && echo $libs)
-Cflags: -I\${includedir}
-EOF
-
-mkdir -p doc/examples/pc-uninstalled
-includedir=${source_path}
-[ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
-    cat <<EOF > doc/examples/pc-uninstalled/${name}-uninstalled.pc
-prefix=
-exec_prefix=
-libdir=\${pcfiledir}/../../../$name
-includedir=${includedir}
-
-Name: $fullname
-Description: $comment
-Version: $version
-Requires: $requires
-Conflicts:
-Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${fullname#lib} $($shared || echo $libs)
-Cflags: -I\${includedir}
-EOF
diff --git a/ffbuild/version.sh b/ffbuild/version.sh
deleted file mode 100755
index edc4dd33c5..0000000000
--- a/ffbuild/version.sh
+++ /dev/null
@@ -1,63 +0,0 @@
-#!/bin/sh
-
-# Usage: version.sh <ffmpeg-root-dir> <output-version.h> <extra-version>
-
-# check for git short hash
-if ! test "$revision"; then
-    if (cd "$1" && grep git RELEASE 2> /dev/null >/dev/null) ; then
-        revision=$(cd "$1" && git describe --tags --match N 2> /dev/null)
-    else
-        revision=$(cd "$1" && git describe --tags --always 2> /dev/null)
-    fi
-fi
-
-# Shallow Git clones (--depth) do not have the N tag:
-# use 'git-YYYY-MM-DD-hhhhhhh'.
-test "$revision" || revision=$(cd "$1" &&
-  git log -1 --pretty=format:"git-%cd-%h" --date=short 2> /dev/null)
-
-# Snapshots from gitweb are in a directory called ffmpeg-hhhhhhh or
-# ffmpeg-HEAD-hhhhhhh.
-if [ -z "$revision" ]; then
-  srcdir=$(cd "$1" && pwd)
-  case "$srcdir" in
-    */ffmpeg-[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f])
-      git_hash="${srcdir##*-}";;
-    */ffmpeg-HEAD-[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f])
-      git_hash="${srcdir##*-}";;
-  esac
-fi
-
-# no revision number found
-test "$revision" || revision=$(cd "$1" && cat RELEASE 2> /dev/null)
-
-# Append the Git hash if we have one
-test "$revision" && test "$git_hash" && revision="$revision-$git_hash"
-
-# releases extract the version number from the VERSION file
-version=$(cd "$1" && cat VERSION 2> /dev/null)
-test "$version" || version=$revision
-
-test -n "$3" && version=$version-$3
-
-if [ -z "$2" ]; then
-    echo "$version"
-    exit
-fi
-
-NEW_REVISION="#define FFMPEG_VERSION \"$version\""
-OLD_REVISION=$(cat "$2" 2> /dev/null | head -4 | tail -1)
-
-# String used for preprocessor guard
-GUARD=$(echo "$2" | sed 's/\//_/' | sed 's/\./_/' | tr '[:lower:]' '[:upper:]' | sed 's/LIB//')
-
-# Update version header only on revision changes to avoid spurious rebuilds
-if test "$NEW_REVISION" != "$OLD_REVISION"; then
-    cat << EOF > "$2"
-/* Automatically generated by version.sh, do not manually edit! */
-#ifndef $GUARD
-#define $GUARD
-$NEW_REVISION
-#endif /* $GUARD */
-EOF
-fi
-- 
2.52.0

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2026-02-20 15:45 [FFmpeg-devel] [PR] 164 (PR #21980) dbxear via ffmpeg-devel

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