Chiebot-Mirror/FFmpeg - FFmpeg - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
Andreas Rheinhardt	02220b88fc	avcodec/thread: Don't use ThreadFrame when unnecessary The majority of frame-threaded decoders (mainly the intra-only) need exactly one part of ThreadFrame: The AVFrame. They don't need the owners nor the progress, yet they had to use it because ff_thread_(get\|release)_buffer() requires it. This commit changes this and makes these functions work with ordinary AVFrames; the decoders that need the extra fields for progress use ff_thread_(get\|release)_ext_buffer() which work exactly as ff_thread_(get\|release)_buffer() used to do. This also avoids some unnecessary allocations of progress AVBuffers, namely for H.264 and HEVC film grain frames: These frames are not used for synchronization and therefore don't need a ThreadFrame. Also move the ThreadFrame structure as well as ff_thread_ref_frame() to threadframe.h, the header for frame-threaded decoders with inter-frame dependencies. Reviewed-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	3 years ago
Andreas Rheinhardt	83e96418f7	avcodec/notchlc: Mark decoder as init-threadsafe Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Andreas Rheinhardt	a247ac640d	avcodec: Constify AVCodecs Given that the AVCodec.next pointer has now been removed, most of the AVCodecs are not modified at all any more and can therefore be made const (as this patch does); the only exceptions are the very few codecs for external libraries that have a init_static_data callback. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com> Signed-off-by: James Almer <jamrial@gmail.com>	4 years ago
Michael Niedermayer	32d0561891	avcodec/notchlc: Check uncompressed size against input for LZ4 Fixes: OOM Fixes: 26168/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_NOTCHLC_fuzzer-6019839015256064 Fixes: 28397/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_NOTCHLC_fuzzer-5649039941042176 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	4 years ago
Michael Niedermayer	3f6653efdb	avcodec/notchlc: Check available space for luma block code and alpha code Fixes: Timeout (too long -> 2sec) Fixes: 25439/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_NOTCHLC_fuzzer-5688211127664640 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	4 years ago
Michael Niedermayer	6707152f08	avcodec/notchlc: Revert incorrect compression bound Revert "avcodec/notchlc: Check uncompressed size against input for LZ4" Found-by: durandal_1707 This reverts commit `51002362c4`.	4 years ago
Michael Niedermayer	51002362c4	avcodec/notchlc: Check uncompressed size against input for LZ4 Fixes: OOM Fixes: 26168/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_NOTCHLC_fuzzer-6019839015256064 Equation is based on LZ4_COMPRESSBOUND from lz4.h Suggested-by: Paul Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	4 years ago
Paul B Mahol	4e012fc8af	avcodec/notchlc: simplify reading le16 in lz4_decompress	5 years ago
Paul B Mahol	1c3a3a4ec6	avcodec/notchlc: add initial alpha support	5 years ago
Paul B Mahol	cdd06db56f	avcodec: add NotchLC decoder	5 years ago