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7fb85ad360
The public functions av_alloc_vdpaucontext() and av_vdpau_alloc_context() are allocating AVVDPAUContext structure that is supposed to be placed in avctx->hwaccel_context. However the rest of libavcodec/vdpau.c uses avctx->hwaccel_context as struct VDPAUHWContext, that is bigger and does contain AVVDPAUContext as first member. The usage includes write to the new variables in the bigger stuct, without checking for block size. Fix by always allocating the bigger structure. Signed-off-by: Ivan Kalvachev <ikalvachev@gmail.com> (cherry picked from commit 3a6ded7cfcb33e06ade98c5791eae06453f65668)
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 a mean to alter decoded Audio and Video through chain of 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.
- ffserver is a multimedia streaming server for live broadcasts.
- 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.