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Author SHA1 Message Date
Andreas Rheinhardt
d8b2fae3c7 avcodec/msmpeg4: Inline number of motion vectors 
Both motion vector tables have the same number of elements, hence one
can inline said number and remove the field containing the number of
elements from the structure.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-01-29 06:28:24 +01:00
Andreas Rheinhardt
fbb81ea2c6 avcodec/msmpeg4dec: Don't check for errors for complete VLCs 
This also affected other users of VLCs from msmpeg4dec, namely vc1_block
and wmv2dec.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-01-29 06:28:24 +01:00
Andreas Rheinhardt
27eea249cc avcodec/msmpeg4dec: Reuse identical MV VLC 
msmpeg4dec and ituh263dec both create VLCs with identical parameters out
of ff_mvtab. Given that ff_msmpeg4_decode_init() always (indirectly) calls
ff_h263_decode_init_vlc(), the VLC initialized by the latter can be
directly used by msmpeg4dec. Doing so saves a bit more than 2KB from the
.bss segment as well as the code to initialize a VLC.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-01-25 14:51:53 +01:00
Andreas Rheinhardt
d90d0a715f avcodec/msmpeg4dec: Reuse identical RL VLCs 
Some of the RLTables used by msmpeg4dec actually coincide with other
RLTables: ff_rl_table[5] coincides with ff_h263_rl_inter (and
ff_rl_table[2] with ff_mpeg4_rl_intra). Given that ff_h263_rl_inter is
always initialized before msmpeg4dec's RLTables are initialized, one can
just reuse the VLC tables by copying the pointers; after all, there are
no ownership issues for static data. This saves 70912B from the .bss
segment, translating into actual memory savings when this decoder is
actually used.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-01-25 14:51:53 +01:00
Andreas Rheinhardt
b0c4748770 avcodec/msmpeg4dec: Don't initialize unused RL VLCs 
For the RLTables ff_rl_table[0..2] only the very first VLC is only ever
used, so it makes no sense to create 32 of them. This saves 285200B from
the .bss segment; this amount of memory is actually saved when this
decoder is used.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-01-25 14:51:53 +01:00
Limin Wang
4b2863ff01 avcodec: add FF_CODEC_CAP_INIT_CLEANUP for all codecs which use ff_mpv_common_init() 
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
 2020-06-13 06:59:18 +08:00
Michael Niedermayer
09ec182864 avcodec/msmpeg4dec: Skip frame if its smaller than 1/8 of the minimal size 
Frames that small are not valid and of limited use for error concealment, while
being very computationally intensive to process.

Fixes: Timeout
Fixes: 11318/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MSMPEG4V1_fuzzer-5710884555456512

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-12-05 00:50:13 +01:00
Michael Niedermayer
f9cb17f988 avcodec/msmpeg4dec: Check for input end in msmpeg4v34_decode_mb() 
Fixes: Timeout
Fixes: 6276/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV1_fuzzer-5881196690014208

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-02-27 19:37:06 +01:00
Michael Niedermayer
15e892aad1 avcodec/msmpeg4dec: Check for cbpy VLC errors 
Fixes: runtime error: left shift of negative value -1
Fixes: 1480/clusterfuzz-testcase-minimized-5188321007370240

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-11 20:04:57 +02:00
Michael Niedermayer
1121d92707 avcodec/msmpeg4dec: Correct table depth 
Fixes undefined shift
Fixes: 1381/clusterfuzz-testcase-minimized-5513944540119040

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-07 04:11:21 +02:00
Clément Bœsch
95a29b1a82 Merge commit 'f2f145f303' 
* commit 'f2f145f303':
  msmpeg4: Drop disabled debug cruft

Merged-by: Clément Bœsch <u@pkh.me>
 2017-03-19 16:06:49 +01:00
Michael Niedermayer
cde007dcd3 avcodec: Add FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM to most h263 based codecs 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-01-21 02:30:38 +01:00
Hendrik Leppkes
2335e189fb Merge commit '4f98bb7b6d' 
* commit '4f98bb7b6d':
  msmpeg4: Remove commented-out debug logging code

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2016-10-07 13:23:38 +02:00
Hendrik Leppkes
5114c62902 Merge commit 'eedbeb4c27' 
* commit 'eedbeb4c27':
  msmpeg4: Remove some broken, commented-out cruft

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2016-10-07 13:22:25 +02:00
Diego Biurrun
f2f145f303 msmpeg4: Drop disabled debug cruft 2016-08-17 12:16:42 +02:00
Hendrik Leppkes
c142dc203e Merge commit 'dc40a70c57' 
* commit 'dc40a70c57':
  Drop unnecessary libavutil/x86/asm.h #includes

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2016-06-26 15:53:00 +02:00
Diego Biurrun
4f98bb7b6d msmpeg4: Remove commented-out debug logging code 2016-06-24 13:25:36 +02:00
Diego Biurrun
eedbeb4c27 msmpeg4: Remove some broken, commented-out cruft 2016-06-24 13:25:36 +02:00
Clément Bœsch
8ef57a0d61 Merge commit '41ed7ab45f' 
* commit '41ed7ab45f':
  cosmetics: Fix spelling mistakes

Merged-by: Clément Bœsch <u@pkh.me>
 2016-06-21 21:55:34 +02:00
Diego Biurrun
dc40a70c57 Drop unnecessary libavutil/x86/asm.h #includes 2016-05-28 19:18:26 +02:00
Vittorio Giovara
41ed7ab45f cosmetics: Fix spelling mistakes 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2016-05-04 18:16:21 +02:00
Michael Niedermayer
d9b56895b5 avcodec/mpegvideo: change bit_rate to 64bit 
32bit is not sufficient for all cases

Fixes: signal_sigabrt_7ffff6ac8cc9_686_cov_1897408623_microsoft_new_way_to_shove_mpeg2_in_asf.dvr_ms

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-09-02 21:10:36 +02:00
Michael Niedermayer
444e9874a7 Merge commit 'def97856de' 
* commit 'def97856de':
  lavc: AV-prefix all codec capabilities

Conflicts:
	cmdutils.c
	ffmpeg.c
	ffplay.c
	libavcodec/8svx.c
	libavcodec/aacenc.c
	libavcodec/ac3dec.c
	libavcodec/adpcm.c
	libavcodec/alac.c
	libavcodec/atrac3plusdec.c
	libavcodec/bink.c
	libavcodec/dnxhddec.c
	libavcodec/dvdec.c
	libavcodec/dvenc.c
	libavcodec/ffv1dec.c
	libavcodec/ffv1enc.c
	libavcodec/fic.c
	libavcodec/flacdec.c
	libavcodec/flacenc.c
	libavcodec/flvdec.c
	libavcodec/fraps.c
	libavcodec/frwu.c
	libavcodec/gifdec.c
	libavcodec/h261dec.c
	libavcodec/hevc.c
	libavcodec/iff.c
	libavcodec/imc.c
	libavcodec/libopenjpegdec.c
	libavcodec/libvo-aacenc.c
	libavcodec/libvorbisenc.c
	libavcodec/libvpxdec.c
	libavcodec/libvpxenc.c
	libavcodec/libx264.c
	libavcodec/mjpegbdec.c
	libavcodec/mjpegdec.c
	libavcodec/mpegaudiodec_float.c
	libavcodec/msmpeg4dec.c
	libavcodec/mxpegdec.c
	libavcodec/nvenc_h264.c
	libavcodec/nvenc_hevc.c
	libavcodec/pngdec.c
	libavcodec/qpeg.c
	libavcodec/ra288.c
	libavcodec/rv10.c
	libavcodec/s302m.c
	libavcodec/sp5xdec.c
	libavcodec/takdec.c
	libavcodec/tiff.c
	libavcodec/tta.c
	libavcodec/utils.c
	libavcodec/v210dec.c
	libavcodec/vp6.c
	libavcodec/vp9.c
	libavcodec/wavpack.c
	libavcodec/yop.c

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-27 22:50:18 +02:00
Vittorio Giovara
def97856de lavc: AV-prefix all codec capabilities 
Express bitfields more simply.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-07-27 15:24:58 +01:00
Michael Niedermayer
f5ee10c16a Merge commit '2f15846ad7' 
* commit '2f15846ad7':
  mpegvideo: wmv2: Move function declarations

Conflicts:
	libavcodec/wmv2.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-06-01 01:09:38 +02:00
Vittorio Giovara
2f15846ad7 mpegvideo: wmv2: Move function declarations 2015-05-31 13:06:19 +02:00
Michael Niedermayer
75647622b5 Merge commit '6f57375d70' 
* commit '6f57375d70':
  rl: Rename ff_*_rl() to ff_rl_*()

Conflicts:
	libavcodec/mpeg4videodec.c
	libavcodec/rl.c
	libavcodec/rl.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-05-28 21:48:49 +02:00
Anton Khirnov
6f57375d70 rl: Rename ff_*_rl() to ff_rl_*() 2015-05-28 15:38:43 +01:00
Michael Niedermayer
d5227ceff1 Merge commit '9c1db92ad3' 
* commit '9c1db92ad3':
  mpegvideo: Drop err_recognition

Conflicts:
	libavcodec/h263dec.c
	libavcodec/ituh263dec.c
	libavcodec/mpeg4video.h
	libavcodec/mpeg4videodec.c
	libavcodec/msmpeg4dec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-05-22 20:38:42 +02:00
Vittorio Giovara
9c1db92ad3 mpegvideo: Drop err_recognition 
It is just a duplicate of an AVCodecContext member so use it instead.
 2015-05-22 15:34:39 +01:00
Michael Niedermayer
8f7b022c8c Merge commit '6a85dfc830' 
* commit '6a85dfc830':
  lavc: Replace av_dlog and tprintf with internal macros

Conflicts:
	libavcodec/aacdec.c
	libavcodec/audio_frame_queue.c
	libavcodec/bitstream.c
	libavcodec/dcadec.c
	libavcodec/dnxhddec.c
	libavcodec/dvbsubdec.c
	libavcodec/dvdec.c
	libavcodec/dvdsubdec.c
	libavcodec/get_bits.h
	libavcodec/gifdec.c
	libavcodec/h264.h
	libavcodec/h264_cabac.c
	libavcodec/h264_cavlc.c
	libavcodec/h264_loopfilter.c
	libavcodec/h264_refs.c
	libavcodec/imc.c
	libavcodec/interplayvideo.c
	libavcodec/jpeglsdec.c
	libavcodec/libopencore-amr.c
	libavcodec/mjpegdec.c
	libavcodec/mpeg12dec.c
	libavcodec/mpegvideo_enc.c
	libavcodec/mpegvideo_parser.c
	libavcodec/pngdec.c
	libavcodec/ratecontrol.c
	libavcodec/rv10.c
	libavcodec/svq1dec.c
	libavcodec/vqavideo.c
	libavcodec/wmadec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-04-20 04:10:10 +02:00
Vittorio Giovara
6a85dfc830 lavc: Replace av_dlog and tprintf with internal macros 2015-04-19 12:41:59 +01:00
Michael Niedermayer
2b05db4f81 Merge commit 'e74433a8e6' 
* commit 'e74433a8e6':
  dsputil: Split clear_block*/fill_block* off into a separate context

Conflicts:
	configure
	libavcodec/asvdec.c
	libavcodec/dnxhddec.c
	libavcodec/dnxhdenc.c
	libavcodec/dsputil.h
	libavcodec/eamad.c
	libavcodec/intrax8.c
	libavcodec/mjpegdec.c
	libavcodec/ppc/dsputil_ppc.c
	libavcodec/vc1dec.c
	libavcodec/x86/dsputil_init.c
	libavcodec/x86/dsputil_mmx.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-19 04:54:38 +02:00
Diego Biurrun
e74433a8e6 dsputil: Split clear_block*/fill_block* off into a separate context 2014-06-18 14:07:23 -07:00
Michael Niedermayer
5440151fa4 Merge commit '3dc6272bed' 
* commit '3dc6272bed':
  Remove a number of unnecessary dsputil.h #includes

Conflicts:
	libavcodec/h264pred.c
	libavcodec/vc1dsp.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-04-05 18:54:15 +02:00
Diego Biurrun
3dc6272bed Remove a number of unnecessary dsputil.h #includes 2014-04-04 19:08:05 +02:00
Michael Niedermayer
6ee2911996 Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  lavc: drop ff_pixfmt_list_420

Conflicts:
	libavcodec/flvdec.c
	libavcodec/msmpeg4dec.c
	libavcodec/rv10.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-03-23 03:56:43 +01:00
Vittorio Giovara
6f6c029464 lavc: drop ff_pixfmt_list_420 2014-03-23 01:56:58 +01:00
Michael Niedermayer
9517900bef Merge commit 'e0c16e4e32' 
* commit 'e0c16e4e32':
  mpegvideo: move mpegvideo formats-related defines to mpegutils.h

Conflicts:
	libavcodec/h264_cabac.c
	libavcodec/h264_cavlc.c
	libavcodec/h264_mvpred.h
	libavcodec/svq1enc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-03-17 12:36:48 +01:00
Vittorio Giovara
e0c16e4e32 mpegvideo: move mpegvideo formats-related defines to mpegutils.h 2014-03-16 23:04:41 +01:00
Michael Niedermayer
61edda9a4a avcodec/msmpeg4dec: initialize dir_ptr in error cases 
Fixes use of uinitialized memory
Fixes: msan_uninit-mem_7f01b8799186_7278_msnaudio.asf
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-12-15 13:24:05 +01:00
Michael Niedermayer
81230e2612 avcodec/msmpeg4dec: print error in case of invalid vlc in msmpeg4_decode_dc for version <=2 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-12-15 13:22:03 +01:00
Michael Niedermayer
ee77140afa Merge commit 'b2bed9325d' 
* commit 'b2bed9325d':
  cosmetics: Group .name and .long_name together in codec/format declarations

Conflicts:
	libavcodec/8svx.c
	libavcodec/alac.c
	libavcodec/cljr.c
	libavcodec/dnxhddec.c
	libavcodec/dnxhdenc.c
	libavcodec/dpxenc.c
	libavcodec/dvdec.c
	libavcodec/dvdsubdec.c
	libavcodec/dvdsubenc.c
	libavcodec/ffv1dec.c
	libavcodec/flacdec.c
	libavcodec/flvdec.c
	libavcodec/fraps.c
	libavcodec/frwu.c
	libavcodec/g726.c
	libavcodec/gif.c
	libavcodec/gifdec.c
	libavcodec/h261dec.c
	libavcodec/h263dec.c
	libavcodec/iff.c
	libavcodec/imc.c
	libavcodec/libopencore-amr.c
	libavcodec/libopenjpegdec.c
	libavcodec/libopenjpegenc.c
	libavcodec/libspeexenc.c
	libavcodec/libvo-amrwbenc.c
	libavcodec/libvorbisenc.c
	libavcodec/libvpxenc.c
	libavcodec/libx264.c
	libavcodec/libxavs.c
	libavcodec/libxvid.c
	libavcodec/ljpegenc.c
	libavcodec/mjpegbdec.c
	libavcodec/mjpegdec.c
	libavcodec/mpeg12dec.c
	libavcodec/mpeg4videodec.c
	libavcodec/msmpeg4dec.c
	libavcodec/pgssubdec.c
	libavcodec/pngdec.c
	libavcodec/pngenc.c
	libavcodec/proresdec_lgpl.c
	libavcodec/proresenc_kostya.c
	libavcodec/ra144enc.c
	libavcodec/rawdec.c
	libavcodec/rv10.c
	libavcodec/sp5xdec.c
	libavcodec/takdec.c
	libavcodec/tta.c
	libavcodec/v210dec.c
	libavcodec/vp6.c
	libavcodec/wavpack.c
	libavcodec/xbmenc.c
	libavcodec/yop.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-10-04 12:34:23 +02:00
Diego Biurrun
b2bed9325d cosmetics: Group .name and .long_name together in codec/format declarations 2013-10-03 23:32:01 +02:00
Michael Niedermayer
b4eb06d325 msmpeg4: ignore negative DC overflow 
Fixes second half of Ticket2414

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-04-09 16:27:49 +02:00
Michael Niedermayer
2b6185cac9 Merge commit 'b4d24b471b' 
* commit 'b4d24b471b':
  build: Remove configure-generated .config file on distclean
  msmpeg4: Split decoding related functions to a separate file

Conflicts:
	Makefile
	libavcodec/Makefile
	libavcodec/msmpeg4.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-03-28 12:07:38 +01:00
Martin Storsjö
3891a270f5 msmpeg4: Split decoding related functions to a separate file 
This fixes standalone compilation of the msmpeg4v2, msmpeg4v3
and wmv2 encoders, that previously failed to link due to the
decoder codepaths requiring error_resilience.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-03-27 15:45:56 +02:00