451be676f3
* rbultje/vp9-bugfixes: vp9: match another find_ref_mvs() bug in libvpx. vp9: fix scaled motion vector clipping for sub8x8 blocks. vp9: improve signbias check. vp9: don't allow compound references if error_resilience is enabled. vp9: clamp segmented lflvl before applying ref/mode deltas. vp9: reset loopfilter mode/ref deltas on keyframe. vp9: fix crash when playing back 440/440 content with width%64<56. vp9: extend loopfilter workaround for vp9 h/v mix-up to work for 422. vp9: clip motion vectors in the same way as libvpx does. vp9: set skip flag if the block had no coded coefficients. vp9: apply mv scaling workaround only when subsampling is enabled. vp9: read all 4x4 blocks in sub8x8 blocks individually with scalability. vp9: fix segmentation map referencing upon framesize change. vp9: disable more pmulhrsw optimizations in idct16/32. vp9: disable all pmulhrsw in 8/16 iadst x86 optimizations. Merged-by: Michael Niedermayer <michaelni@gmx.at>
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.