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Fixes: signed integer overflow: 14 + 2147483647 cannot be represented in type 'int'
Fixes: 14794/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_H264_fuzzer-5677380695228416
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Fixes: 10300/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_H264_fuzzer-6292205497483264
Fixes: signed integer overflow: -2147483648 - 1 cannot be represented in type 'int'
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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When ff_h264_decode_mb_cavlc() failed due to wrong sl->qscale values,
e.g. dquant out of range, set the qscale to be a valid value before
returning -1 and exiting the function. The qscale value can be used
later e.g. in loop filter.
BUG=806122
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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ff_h264_decode_mb_cabac() and ff_h264_decode_mb_cavlc() are very long
functions. Declaring decode_chroma as const makes it clear the variable
doesn't change after initialization.
Signed-off-by: Wan-Teh Chang <wtc@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
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Fixes: 1639/clusterfuzz-testcase-minimized-5693801463021568
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Fixes: 1513/clusterfuzz-testcase-minimized-6246484833992704
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Fixes: 1214/clusterfuzz-testcase-minimized-6130606599569408
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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* commit '9df889a5f116c1ee78c2f239e0ba599c492431aa':
h264: rename h264.[ch] to h264dec.[ch]
Merged-by: Clément Bœsch <u@pkh.me>
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* commit '6e92181bf836f48627a4733b6fd240a99fd36365':
h264: pass just the PPS to get_chroma_qp()
Merged-by: Clément Bœsch <clement@stupeflix.com>
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* commit '52567e8198669a1e7493c75771613f87a90466c3':
get_bits: Drop some TRACE-level debug code
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
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* commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb':
cosmetics: Fix spelling mistakes
Merged-by: Clément Bœsch <u@pkh.me>
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This is more consistent with the naming of other decoders.
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Signed-off-by: James Almer <jamrial@gmail.com>
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It does not need the whole context. This will simplify the following
commit.
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* commit '3176217c60ca7828712985092d9102d331ea4f3d':
h264: decouple h264_ps from the h264 decoder
Main changes:
- a local GetBitContext is created for the various
ff_h264_decode_seq_parameter_set() attempts
- just like the old code, remove_sps() is adjusted so it doesn't remove
the pps.
Fixes decode with Ticket #631
http://ffmpeg.org/pipermail/ffmpeg-user/attachments/20111108/dae58f17/attachment.mp4
but see next point as well.
- ff_h264_update_thread_context() is updated to work even when SPS
isn't set as it breaks current skip_frame code. This makes sure we
can still decode the sample from ticket #631 without the need for
-flags2 +chunks. (Thanks to Michael)
- keep {sps,pps}_ref pointers that stay alive even when the active
pps/sps get removed from the available lists (patch by michaelni with
additionnal frees in ff_h264_free_context() from mateo)
- added a check on sps in avpriv_h264_has_num_reorder_frames() to fix
crashes with mpegts_with_dvbsubs.ts from Ticket #4074
http://samples.ffmpeg.org/ffmpeg-bugs/trac/ticket4074/mpegts_with_dvbsubs.ts
- in h264_parser.c:h264_parse(), after the ff_h264_decode_extradata() is
called, the pps and sps from the local parser context are updated with
the pps and sps from the used h264context. This fixes fate-flv-demux.
- in h264_slice.c, "PPS changed between slices" error is not triggered
anymore in one condition as it makes fate-h264-xavc-4389 fails with
THREADS=N (Thanks to Michael)
Merged-by: Clément Bœsch <clement@stupeflix.com>
Merged-by: Michael Niedermayer <michael@niedermayer.cc>
Merged-by: Matthieu Bouron <matthieu.bouron@stupeflix.com>
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It will not be provided by the new bit reader anyway.
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
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* commit 'ecc31f6b086453ab9811dce2ae5ceb6a7c19e4ad':
h264: move ff_h264_check_intra[4x4]_pred_mode() to h264_parse
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
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* commit 'a7da517f6a5c472f46f67dd33bb6b95ccc919923':
h264data: Move all data tables from a header to a .c file
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
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Make the SPS/PPS parsing independent of the H264Context, to allow
decoupling the parser from the decoder. The change is modelled after the
one done earlier for HEVC.
Move the dequant buffers to the PPS to avoid complex checks whether they
changed and an expensive copy for frame threads.
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It is shared with svq3.
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* commit '6b96d2dcdaa60d7919d710432c6ca204b7fab0ab':
cosmetics: Drop particularly redundant silly comments
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
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* commit '6a85dfc830f51f1f5c2d36d4182d265c1ea3ba25':
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>
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This basically switches to the implementation from f6f7d1504134683c435e2c7d804279d982e52bb4
which seems faster
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '7505c8dfba255f8e6c6dbb574d0cec91da16f24d':
h264_cavlc: constify all uses of H264Context
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'e9b2383bf86b38ad18a001801aee20c8182e29bd':
h264: move mb_mbaff into the per-slice context
Conflicts:
libavcodec/h264_cabac.c
libavcodec/h264_cavlc.c
libavcodec/h264_slice.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'bc98e8c0e0a8babfea35c98855e366b29cbe1191':
h264: move mb_field_decoding_flag into the per-slice context
Conflicts:
libavcodec/h264_slice.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'f42485dbce614b3f63182845da43db690b427b7c':
h264: use a separate GetBitContext for slice data
Conflicts:
libavcodec/h264.c
libavcodec/h264_cavlc.c
libavcodec/h264_parser.c
libavcodec/h264_slice.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '404a416d4b1fcbf9db5569481d8181f296c01ea9':
h264: remove some remnants of data partitioning
Conflicts:
libavcodec/h264.c
libavcodec/h264_slice.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'd4d9068cdf8f4b2b87ae87a2ef880d243f77b977':
h264: move mb_{x,y} into the per-slice context
Conflicts:
libavcodec/h264.c
libavcodec/h264_cavlc.c
libavcodec/h264_mb.c
libavcodec/h264_slice.c
libavcodec/svq3.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '0edbe6faa7ef80daf0e84353cbe733389bf1a522':
h264: move mb_xy into the per-slice context
Conflicts:
libavcodec/h264.c
libavcodec/h264_cabac.c
libavcodec/svq3.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '47a0d393504d6726c4a235951153bee0abb3f7d6':
h264: move mb_skip_run into the per-slice context
Conflicts:
libavcodec/h264_cavlc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'e7226984ac13aacb84eae77a372df8ff7685848f':
h264: move [{top,left}_]cbp into the per-slice context
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'bf03a878a76dea29b36f368759e9f66102b39a5f':
h264: move mb[_{padding,luma_dc}] into the per-slice context
Conflicts:
libavcodec/h264.h
libavcodec/h264_cavlc.c
libavcodec/h264_mb.c
libavcodec/h264_slice.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'b063582e0c4f775a8ba377488bd085595e0e7fae':
h264: move intra_pcm_ptr into the per-slice context
Conflicts:
libavcodec/h264.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '95eb35f30513e335990ad0d5dca6ddc318477291':
h264: move the ref lists variables into the per-slice context
Conflicts:
libavcodec/h264.c
libavcodec/h264.h
libavcodec/h264_cabac.c
libavcodec/h264_cavlc.c
libavcodec/h264_direct.c
libavcodec/h264_mb.c
libavcodec/h264_picture.c
libavcodec/h264_refs.c
libavcodec/h264_slice.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'ed451a08a46b2b07fd2dba3e55ffddd18ae6e3d6':
h264: move sub_mb_type into the per-slice context
Conflicts:
libavcodec/h264_cabac.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '56febc993b928ccc039a32158ca60b234c311875':
h264: move the slice type variables into the per-slice context
Conflicts:
libavcodec/h264.c
libavcodec/h264_cabac.c
libavcodec/h264_cavlc.c
libavcodec/h264_slice.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'e6287f077c3e8e4aca11e61dd4bade1351439e6b':
h264: move {mv,ref}_cache into the per-slice context
Conflicts:
libavcodec/h264_cabac.c
libavcodec/h264_mb.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'f69574cf7aca4fe4d57a2155e925f37fc863474d':
h264: move non_zero_count_cache into the per-slice context
Conflicts:
libavcodec/h264.c
libavcodec/h264_cabac.c
libavcodec/h264_cavlc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '64c81b2cd0dcf1fe66c381a5d2c707dddcf35a7e':
h264: move *_samples_available into the per-slice context
Conflicts:
libavcodec/h264.c
libavcodec/h264_mb.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '7d8154edd594981e7891d57de91f2260f8a62939':
h264: move intra4x4_pred_mode[_cache] into the per-slice context
Conflicts:
libavcodec/h264.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '8b00f4df20f4a8ab0656fdaf7d00233a6515a052':
h264: move some neighbour information into the per-slice context
Conflicts:
libavcodec/h264_cabac.c
libavcodec/h264_cavlc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '4bd5ac200d15b4f458a50f66006549825f9fc865':
h264: move {chroma,intra16x16}_pred_mode into the per-slice context
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '5355ed6b20e941430c4f8fb82644e87a65366d61':
h264: move {prev,next}_mb_skipped into the per-slice context
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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