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Andreas Rheinhardt cbf6047c83 avcodec/frame_thread_encoder: Remove redundant memcpy 
In case the underlying AVCodec has no private class, the private data
of both the main as well as each worker AVCodecContext is just zeroed
(the codec's init function has not been called on any of them and
without a private class there is no way to legitimately set anything
before the aforementioned init function).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-06-08 12:52:50 +02:00
compat fix broken links to msdn documentation 2021-05-13 09:13:03 +10:00
doc avformat/mov: add option to use tfdt for fragment timestamps. 2021-06-02 10:46:04 +05:30
ffbuild libavresample: Remove deprecated library 2021-04-27 10:43:13 -03:00
fftools fftools/ffmpeg: remove usage of internal timestamp AVStream fields 2021-06-04 22:36:39 -03:00
libavcodec avcodec/frame_thread_encoder: Remove redundant memcpy 2021-06-08 12:52:50 +02:00
libavdevice avformat: move AVStream.{parser,need_parsing} to AVStreamInternal 2021-05-07 09:27:21 -03:00
libavfilter avfilter/overlay_cuda: add hsub and vsub compute x and y positions 2021-06-07 17:02:36 +02:00
libavformat avformat/rpl: Use 64bit in bitrate computation and check it 2021-06-05 16:59:37 +02:00
libavutil libavcodec/mips: Fix build errors reported by clang 2021-06-03 13:44:00 +02:00
libpostproc Bump major versions of all libraries. 2021-04-27 11:48:05 -03:00
libswresample Bump major versions of all libraries. 2021-04-27 11:48:05 -03:00
libswscale swscale/swscale_unscaled: don't use the optimized bgr24toYV12 unscaled conversion when width%2 2021-06-06 12:34:05 +08:00
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.travis.yml Merge commit '899ee03088d55152a48830df0899887f055da1de' 2019-03-14 15:53:16 -03:00
Changelog avformat: add Argonaut Games CVG muxer 2021-05-12 20:27:02 +10:00
configure configure: detect nvcc without sm_30 support 2021-06-06 21:31:00 +02:00
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INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS avformat: add Argonaut Games CVG demuxer 2021-05-12 20:25:50 +10:00
Makefile libavresample: Remove deprecated library 2021-04-27 10:43:13 -03:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00

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.