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Mirror of https://git.ffmpeg.org/ffmpeg.git
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> |
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compat | ||
doc | ||
libavcodec | ||
libavdevice | ||
libavfilter | ||
libavformat | ||
libavresample | ||
libavutil | ||
libpostproc | ||
libswresample | ||
libswscale | ||
presets | ||
tests | ||
tools | ||
.gitattributes | ||
.gitignore | ||
arch.mak | ||
Changelog | ||
cmdutils_common_opts.h | ||
cmdutils_opencl.c | ||
cmdutils.c | ||
cmdutils.h | ||
common.mak | ||
configure | ||
COPYING.GPLv2 | ||
COPYING.GPLv3 | ||
COPYING.LGPLv2.1 | ||
COPYING.LGPLv3 | ||
CREDITS | ||
ffmpeg_dxva2.c | ||
ffmpeg_filter.c | ||
ffmpeg_opt.c | ||
ffmpeg_vda.c | ||
ffmpeg_vdpau.c | ||
ffmpeg.c | ||
ffmpeg.h | ||
ffplay.c | ||
ffprobe.c | ||
ffserver_config.c | ||
ffserver_config.h | ||
ffserver.c | ||
INSTALL.md | ||
library.mak | ||
LICENSE.md | ||
MAINTAINERS | ||
Makefile | ||
README.md | ||
RELEASE | ||
version.sh |
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodec
provides implementation of a wider range of codecs.libavformat
implements streaming protocols, container formats and basic I/O access.libavutil
includes hashers, decompressors and miscellaneous utility functions.libavfilter
provides a mean to alter decoded Audio and Video through chain of filters.libavdevice
provides an abstraction to access capture and playback devices.libswresample
implements audio mixing and resampling routines.libswscale
implements 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
,ismindex
andqt-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.