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6c878f8b82
The extradata allocated in mov_write_single_packet() for AV1 was missing the required AV_INPUT_BUFFER_PADDING_SIZE padding bytes. This could lead to out-of-bounds reads when the extradata is parsed by bitstream readers. Replace av_memdup() with av_malloc() + memset() + memcpy() to ensure proper padding is present and zeroed. Reproduced with: ./ffmpeg -y -f lavfi -i "testsrc=duration=1:size=320x240:rate=30" -c:v libaom-av1 -cpu-used 8 -crf 50 test-av1.mp4 Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides means to alter decoded audio and video through a directed graph of connected filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements color conversion and scaling routines.
Tools
- ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
- ffplay is a minimalistic multimedia player.
- ffprobe is a simple analysis tool to inspect multimedia content.
- Additional small tools such as
aviocat,ismindexandqt-faststart.
Documentation
The offline documentation is available in the doc/ directory.
The online documentation is available in the main website and in the wiki.
Examples
Coding examples are available in the doc/examples directory.
License
FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.
Contributing
Patches should be submitted to the ffmpeg-devel mailing list using
git format-patch or git send-email. Github pull requests should be
avoided because they are not part of our review process and will be ignored.