[FFmpeg-devel] [PATCH 00/48] H263DecContext

From: ffmpegagent <ffmpegagent-at-gmail.com@ffmpeg.org>
To: ffmpeg-devel@ffmpeg.org
Cc: mkver <andreas.rheinhardt@outlook.com>
Subject: [FFmpeg-devel] [PATCH 00/48] H263DecContext
Date: Mon, 23 Jun 2025 13:36:00 +0000
Message-ID: <pull.102.ffstaging.FFmpeg.1750685808.ffmpegagent@gmail.com> (raw)

This patchset adds a H263DecContext and moves the fields of MpegEncContext
that are only used by the H.263-based decoders (those using h263dec.c) to
it. It also adds a special slice context for the MPEG-1/2 decoders and moves
the GetBitContext from MpegEncContext to the actual decoder contexts (no
get_bits.h inclusion in encoders any longer). Furthermore, MpegEncContext.
is put into the codec contexts and no longer separately allocated.

Andreas Rheinhardt (48):
  avcodec/ituh263dec: Use correct logcontext
  avcodec/rl: Avoid branch in index lookup
  avcodec/ituh263enc: Simplify creating LUT
  avcodec/ituh263dec: Only initialize ff_h263_rl_inter when needed
  avcodec/mpegvideoenc: Allocate blocks as part of MPVEncContext
  avcodec/mpegvideo: Add MPVContext typedef
  avcodec/mpegvideo_dec: Factor debugging dct coefficients out
  avcodec/mpegvideo_dec: Reindent after the previous commit
  avcodec/mpeg_er: Don't use MpegEncContext.block
  avcodec/mpegvideodec: Remove size expectation from
    ff_mpv_reconstruct_mb
  avcodec/h261dec: Stop using MpegEncContext.gb
  avcodec/h261dec: Don't use MpegEncContext.block
  avcodec/mpeg12dec: Put GetBitContext on the stack where advantageous
  avcodec/mpeg12dec: Remove unused function parameter
  avcodec/rv34: Don't use MpegEncContext.gb
  avcodec/rv34: Don't use MpegEncContext.block
  avcodec/intrax8: Don't pretend to need more than one int16_t[64]
  avcodec/vc1: Stop using MpegEncContext.gb
  avcodec/vc1: Don't use MpegEncContext.block
  avcodec/mpeg12dec: Deduplicate variables
  avcodec/mpegvideo: Move flipflop_rounding to
    {MSMPEG4Dec,MPVEnc}Context
  avcodec/mpegvideo: Move unrestricted_mv to MotionEstContext
  avcodec/mpeg4videodec: Avoid unnecessary indirections
  avcodec/{h263,mpeg4video}dec: Pass MPVContext*, not Mpeg4DecContext*
  avcodec/mpegvideo: Move dct_precision to Mpeg4DecContext
  avcodec/h263dec: Add H263DecContext
  avcodec/h263dec: Remove redundant block parameter from decode_mb
  avcodec/h263dec: Don't use MpegEncContext.block
  avcodec/h263dec: Stop using MpegEncContext.gb
  avcodec/mpeg12dec: Add Mpeg12SliceContext
  avcodec/mpegvideo: Add missing headers
  avcodec/mpeg12dec: Move MpegEncContext.gb to Mpeg12SliceContext
  avcodec/mpeg12dec: Don't use MPVContext.block
  avcodec/mpegvideo: Move fields only used by H.263 decoders to
    H263DecCtx
  avcodec/mpegvideo: Move mb_num_left to {H263,RV34}DecContext
  avcodec/mpeg12dec: Put mb_skip_run on the stack
  avcodec/mpegvideo: Move mb_skip_run to {RV34Dec,MPVEnc}Context
  avcodec/mpegvideo: Move SLICE_* defs to h263dec.h, h261dec.c
  avcodec/msmpeg4dec: Move ff_msmpeg4_decode_init() down
  avcodec/h263dec: Use function ptr for decode_picture_header
  avcodec/ituh263enc: Inline value of h263_flv
  avcodec/flvdec: Binarize h263_flv
  avcodec/mpegvideo: Move fields to {H263Dec,MPVEnc}Context when
    possible
  avcodec/mpeg_er: Allow to skip setting partitioned_frame, p[pb]_time
  avcodec/mpegvideo: Move partitioned_frame to {H263Dec,MPVEnc}Context
  avcodec/mpegvideo: Move loop_filter to {H263Dec,MPVEnc,VC1}Context
  avcodec/rv34: Don't report progress unnecessarily
  avcodec/rv34: Fix spelling mistake

 libavcodec/dxva2_vc1.c                 |    6 +-
 libavcodec/error_resilience.c          |    2 +
 libavcodec/flvdec.c                    |   60 +-
 libavcodec/flvdec.h                    |    4 +-
 libavcodec/flvenc.c                    |    4 +-
 libavcodec/h261dec.c                   |   95 +-
 libavcodec/h261enc.c                   |   18 +-
 libavcodec/h263data.h                  |    4 +
 libavcodec/h263dec.c                   |  427 +++---
 libavcodec/h263dec.h                   |   81 +-
 libavcodec/h263enc.h                   |    2 +-
 libavcodec/intelh263dec.c              |  110 +-
 libavcodec/intrax8.c                   |   16 +-
 libavcodec/intrax8.h                   |    4 +-
 libavcodec/ituh263dec.c                |  950 ++++++-------
 libavcodec/ituh263enc.c                |  112 +-
 libavcodec/me_cmp.c                    |    1 +
 libavcodec/mips/mpegvideo_msa.c        |    1 +
 libavcodec/motion_est.c                |    4 +-
 libavcodec/motion_est.h                |    1 +
 libavcodec/mpeg12dec.c                 |  909 +++++++------
 libavcodec/mpeg12enc.c                 |   11 +-
 libavcodec/mpeg4video_parser.c         |    4 +-
 libavcodec/mpeg4videodec.c             | 1741 ++++++++++++------------
 libavcodec/mpeg4videodec.h             |   13 +-
 libavcodec/mpeg4videoenc.c             |   21 +-
 libavcodec/mpeg_er.c                   |    7 +-
 libavcodec/mpeg_er.h                   |    9 +
 libavcodec/mpegvideo.c                 |   28 +-
 libavcodec/mpegvideo.h                 |   49 +-
 libavcodec/mpegvideo_dec.c             |   37 +-
 libavcodec/mpegvideo_enc.c             |  178 +--
 libavcodec/mpegvideodec.h              |    8 +-
 libavcodec/mpegvideoenc.h              |   21 +
 libavcodec/msmpeg4.c                   |    1 +
 libavcodec/msmpeg4dec.c                |  586 ++++----
 libavcodec/msmpeg4dec.h                |   11 +-
 libavcodec/msmpeg4enc.c                |   10 +-
 libavcodec/mss2.c                      |    6 +-
 libavcodec/nvdec_mpeg4.c               |    4 +-
 libavcodec/nvdec_vc1.c                 |    2 +-
 libavcodec/ppc/mpegvideo_altivec.c     |    1 +
 libavcodec/ratecontrol.c               |    4 +-
 libavcodec/rl.h                        |    6 +-
 libavcodec/rv10.c                      |  340 ++---
 libavcodec/rv10dec.h                   |    4 +-
 libavcodec/rv20enc.c                   |   12 +-
 libavcodec/rv30.c                      |    2 +-
 libavcodec/rv34.c                      |   61 +-
 libavcodec/rv34.h                      |    6 +
 libavcodec/rv40.c                      |   10 +-
 libavcodec/snowenc.c                   |    4 +-
 libavcodec/speedhqenc.c                |    1 +
 libavcodec/svq1enc.c                   |    2 +-
 libavcodec/vaapi_mpeg4.c               |   12 +-
 libavcodec/vaapi_vc1.c                 |    4 +-
 libavcodec/vc1.c                       |   30 +-
 libavcodec/vc1.h                       |    7 +
 libavcodec/vc1_block.c                 |  134 +-
 libavcodec/vc1_pred.c                  |   12 +-
 libavcodec/vc1dec.c                    |   54 +-
 libavcodec/vdpau_mpeg4.c               |    2 +-
 libavcodec/vdpau_vc1.c                 |    2 +-
 libavcodec/wmv2.h                      |    4 +-
 libavcodec/wmv2dec.c                   |  326 ++---
 libavcodec/wmv2dec.h                   |    4 +-
 libavcodec/wmv2enc.c                   |    8 +-
 libavcodec/x86/mpegvideo.c             |    2 +-
 libavcodec/x86/mpegvideoenc.c          |    1 -
 libavcodec/x86/mpegvideoenc_template.c |    1 +
 70 files changed, 3347 insertions(+), 3267 deletions(-)

base-commit: e6298e0759430f64e9bd9298775de92597be8a50
Published-As: https://github.com/ffstaging/FFmpeg/releases/tag/pr-ffstaging-102%2Fmkver%2FH263DecContext-v1
Fetch-It-Via: git fetch https://github.com/ffstaging/FFmpeg pr-ffstaging-102/mkver/H263DecContext-v1
Pull-Request: https://github.com/ffstaging/FFmpeg/pull/102
-- 
ffmpeg-codebot
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