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Andreas Rheinhardt ad2745e867 cbs_av1, cbs_jpeg, cbs_mpeg2, cbs_vp9: Fix undef 
READ has already been undefined at this point; it is obviously intended
to undef WRITE.
Furthermore, leb128 (in cbs_av1) was undefined too often and
inconsistently.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 		2019-06-07 21:24:07 +01:00
compat compat/cuda/ptx2c: don't drop final newline 2019-05-24 19:23:39 +02:00
doc libavfilter: Add derain filter 2019-06-06 13:59:43 +08:00
ffbuild
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fftools ffmpeg_hw: Treat empty device string as no device setting 2019-06-02 22:58:22 +01:00
libavcodec cbs_av1, cbs_jpeg, cbs_mpeg2, cbs_vp9: Fix undef 2019-06-07 21:24:07 +01:00
libavdevice libavdevice/gdigrab: fix ffmpeg -devices doesn't show gdigrab 2019-05-17 21:51:20 +08:00
libavfilter lavfi/vaapi: Fix build with libva 2.1 and 2.2 2019-06-07 21:15:29 +01:00
libavformat avformat/matroskadec: Compactify structure 2019-06-07 19:58:15 +02:00
libavresample
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libavutil hwcontext_qsv: Try to select a matching VAAPI device by default 2019-06-02 23:03:27 +01:00
libpostproc
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libswresample swresample/swresample: check for invalid sample rates 2019-05-26 14:43:32 +02:00
libswscale swscale/tests/swscale: Lengthen pixfmt name buffer to 21 bytes 2019-05-13 13:39:49 +02:00
presets
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tests avutil: Add missing reference files for pixdesc fate test 2019-05-14 12:06:26 +02:00
tools tools/target_dec_fuzzer: Limit error concealment on pixels instead of just frames 2019-06-05 13:19:59 +02:00
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Changelog avfilter: add showspatial multimedia filter 2019-05-31 12:53:20 +02:00
INSTALL.md
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LICENSE.md
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Makefile tools: Add fuzzer for demuxers 2019-05-31 22:44:30 +02:00
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configure lavfi/opencl: add nlmeans_opencl filter 2019-05-24 15:09:22 +08:00

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.