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A. Wilcox 153fcd6de6 libavcodec/ppc: Fix HEVC AltiVec routines with --enable-small
GCC requires the argument to vec_splat_u32 to be a literal.  The easiest
way to accomplish this is to change 'shift' to be const in scale (as it
is in the transform routine above), and convert both routines to be
inline.  This way, GCC can coerce the values to literals.

Tested on a 970 (Apple G5) and POWER9 (Talos II); passed fate and played
a clip of Big Buck Bunny correctly.

Fixes ticket #7048

Signed-off-by: A. Wilcox <AWilcox@Wilcox-Tech.com>
2018-07-21 13:36:24 +02:00
compat compat: remove in-tree NVidia headers 2018-02-27 16:22:12 +01:00
doc doc/filters: add missing details to aphasemeter 2018-07-16 11:20:22 +05:30
ffbuild
fftools ffplay: add support for various YUV conversion modes 2018-07-13 22:24:33 +02:00
libavcodec libavcodec/ppc: Fix HEVC AltiVec routines with --enable-small 2018-07-21 13:36:24 +02:00
libavdevice avdevice/v4l2enc: add video4linux2 name alias 2018-06-18 16:26:23 -08:00
libavfilter lavfi/af_afir,af_aiir: Remove a variable that is always -1. 2018-07-19 23:13:24 +02:00
libavformat avformat/movenc: add support for AV1 streams 2018-07-20 12:00:32 -03:00
libavresample
libavutil avutil/pixfmt: Document chroma plane size for odd resolutions 2018-07-20 13:13:52 +02:00
libpostproc Bump minor versions after release/4.0 branching 2018-04-16 12:35:12 +02:00
libswresample swresample/arm: rename labels to fix xcode build error 2018-04-28 18:08:52 +02:00
libswscale lsws/rgb2rgb_template: Do not compile unneeded shuffle functions on big-endian. 2018-06-10 03:22:59 +02:00
presets
tests fate: add more vc2 encoder tests 2018-07-18 11:32:20 +02:00
tools tools/target_dec_fuzzer: set parser codec id to avoid assertion failure 2018-07-07 12:09:34 +02:00
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Changelog Update Changelog for lensfun addition and bump minor 2018-07-15 10:23:20 +02:00
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MAINTAINERS MAINTAINERS: add myself to qsv section 2018-06-07 23:57:27 +01:00
Makefile Revert "lavd: add new API for iterating input and output devices" 2018-03-31 23:26:31 +01:00
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configure avcodec/libaomenc: export Sequence Header and Metadata OBUs as extradata 2018-07-20 11:43:25 -03:00

README.md

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.
  • Additional small tools such as aviocat, ismindex and qt-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.