[FFmpeg-devel] [PATCH 34/36] configure: Add new mpegvideodec CONFIG_EXTRA

From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
To: ffmpeg-devel@ffmpeg.org
Cc: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Subject: [FFmpeg-devel] [PATCH 34/36] configure: Add new mpegvideodec CONFIG_EXTRA
Date: Fri, 24 Dec 2021 04:23:30 +0100
Message-ID: <AM7PR03MB66609F733516CF48FA0D291F8F7F9@AM7PR03MB6660.eurprd03.prod.outlook.com> (raw)
In-Reply-To: <AM7PR03MB66606013F665BF849CE7CAD68F7D9@AM7PR03MB6660.eurprd03.prod.outlook.com>

This allows to remove the spurious dependencies of mpegvideo encoders
on error_resilience; some other components that do not use mpegvideo
to its fullest turned out to not need it either.

Adding a new CONFIG_EXTRA needs a reconfigure to take effect.
In order to force this a few unnecessary headers from lavfi/allfilters.c
have been removed.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
 configure                | 26 ++++++++++++++------------
 libavcodec/Makefile      |  3 ++-
 libavcodec/mpegvideo.c   |  2 +-
 libavfilter/allfilters.c |  2 --
 4 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/configure b/configure
index 23ef2abc9b..f3bdfd2920 100755
--- a/configure
+++ b/configure
@@ -2476,6 +2476,7 @@ CONFIG_EXTRA="
     mpegaudiodsp
     mpegaudioheader
     mpegvideo
+    mpegvideodec
     mpegvideoenc
     mss34dsp
     pixblockdsp
@@ -2723,7 +2724,8 @@ me_cmp_select="fdctdsp idctdsp pixblockdsp"
 mpeg_er_select="error_resilience"
 mpegaudio_select="mpegaudiodsp mpegaudioheader"
 mpegaudiodsp_select="dct"
-mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
+mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
+mpegvideodec_select="mpegvideo mpeg_er"
 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
 vc1dsp_select="h264chroma qpeldsp startcode"
 rdft_select="fft"
@@ -2812,9 +2814,9 @@ fraps_decoder_select="bswapdsp huffman"
 g2m_decoder_deps="zlib"
 g2m_decoder_select="blockdsp idctdsp jpegtables"
 g729_decoder_select="audiodsp"
-h261_decoder_select="mpegvideo"
+h261_decoder_select="mpegvideodec"
 h261_encoder_select="mpegvideoenc"
-h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
+h263_decoder_select="h263_parser h263dsp mpegvideodec qpeldsp"
 h263_encoder_select="h263dsp mpegvideoenc"
 h263i_decoder_select="h263_decoder"
 h263p_decoder_select="h263_decoder"
@@ -2836,7 +2838,7 @@ indeo3_decoder_select="hpeldsp"
 indeo4_decoder_select="ividsp"
 indeo5_decoder_select="ividsp"
 interplay_video_decoder_select="hpeldsp"
-ipu_decoder_select="mpegvideo"
+ipu_decoder_select="mpegvideodec"
 jpegls_decoder_select="mjpeg_decoder"
 jv_decoder_select="blockdsp"
 lagarith_decoder_select="llviddsp"
@@ -2866,10 +2868,10 @@ mp3on4_decoder_select="mpegaudio"
 mp3on4float_decoder_select="mpegaudio"
 mpc7_decoder_select="bswapdsp mpegaudiodsp"
 mpc8_decoder_select="mpegaudiodsp"
-mpegvideo_decoder_select="mpegvideo"
-mpeg1video_decoder_select="mpegvideo"
+mpegvideo_decoder_select="mpegvideodec"
+mpeg1video_decoder_select="mpegvideodec"
 mpeg1video_encoder_select="mpegvideoenc h263dsp"
-mpeg2video_decoder_select="mpegvideo"
+mpeg2video_decoder_select="mpegvideodec"
 mpeg2video_encoder_select="mpegvideoenc h263dsp"
 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
 mpeg4_encoder_select="h263_encoder"
@@ -2880,7 +2882,7 @@ msmpeg4v2_decoder_select="h263_decoder"
 msmpeg4v2_encoder_select="h263_encoder"
 msmpeg4v3_decoder_select="h263_decoder"
 msmpeg4v3_encoder_select="h263_encoder"
-mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
+mss2_decoder_select="mpegvideodec qpeldsp vc1_decoder"
 mts2_decoder_select="jpegtables mss34dsp"
 mv30_decoder_select="aandcttables blockdsp"
 mvha_decoder_deps="zlib"
@@ -2913,8 +2915,8 @@ 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 mpegvideo rv34dsp"
-rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
+rv30_decoder_select="golomb h264pred h264qpel mpegvideodec rv34dsp"
+rv40_decoder_select="golomb h264pred h264qpel mpegvideodec rv34dsp"
 screenpresso_decoder_deps="zlib"
 shorten_decoder_select="bswapdsp"
 sipr_decoder_select="lsp"
@@ -2950,7 +2952,7 @@ txd_decoder_select="texturedsp"
 utvideo_decoder_select="bswapdsp llviddsp"
 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
 vble_decoder_select="llviddsp"
-vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
+vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideodec vc1dsp"
 vc1image_decoder_select="vc1_decoder"
 vorbis_decoder_select="mdct"
 vorbis_encoder_select="audio_frame_queue mdct"
@@ -3246,7 +3248,7 @@ h264_parser_select="atsc_a53 golomb h264dsp h264parse"
 hevc_parser_select="hevcparse"
 mpegaudio_parser_select="mpegaudioheader"
 mpegvideo_parser_select="mpegvideo"
-mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
+mpeg4video_parser_select="h263dsp mpegvideodec qpeldsp"
 vc1_parser_select="vc1dsp"
 
 # bitstream_filters
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index e7f1f110e7..df118fd3e7 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -123,9 +123,10 @@ OBJS-$(CONFIG_MPEGAUDIODSP)            += mpegaudiodsp.o                \
                                           mpegaudiodsp_fixed.o          \
                                           mpegaudiodsp_float.o
 OBJS-$(CONFIG_MPEGAUDIOHEADER)         += mpegaudiodecheader.o mpegaudiodata.o
-OBJS-$(CONFIG_MPEGVIDEO)               += mpegvideo.o mpegvideo_dec.o mpegvideodsp.o rl.o \
+OBJS-$(CONFIG_MPEGVIDEO)               += mpegvideo.o mpegvideodsp.o rl.o \
                                           mpegvideo_motion.o mpegutils.o \
                                           mpegvideodata.o mpegpicture.o
+OBJS-$(CONFIG_MPEGVIDEODEC)            += mpegvideo_dec.o
 OBJS-$(CONFIG_MPEGVIDEOENC)            += mpegvideo_enc.o mpeg12data.o  \
                                           motion_est.o ratecontrol.o    \
                                           mpegvideoencdsp.o
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index a2c4e14b6e..1c2b28f450 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -658,7 +658,7 @@ int ff_mpv_init_context_frame(MpegEncContext *s)
         return AVERROR(ENOMEM);
     memset(s->mbintra_table, 1, mb_array_size);
 
-    return s->encoding ? 0 : ff_mpeg_er_init(s);
+    return !CONFIG_MPEGVIDEODEC || s->encoding ? 0 : ff_mpeg_er_init(s);
 }
 
 static void clear_context(MpegEncContext *s)
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index 26f1c73505..f506ef64cc 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -19,9 +19,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "libavutil/thread.h"
 #include "avfilter.h"
-#include "config.h"
 
 extern const AVFilter ff_af_abench;
 extern const AVFilter ff_af_acompressor;
-- 
2.32.0

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