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James Almer 231a73308f ffmpeg: pass reference counted packet on codec copy when possible 
Should prevent unnecessary copy of data in cases where new references
to the packet are created within the muxer or a bitstream filter.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
 		2018-03-23 22:05:25 -03:00
compat compat: remove in-tree NVidia headers 2018-02-27 16:22:12 +01:00
doc avfilter/avf_showvolume: implement basic rms metering mode 2018-03-23 22:53:13 +01:00
ffbuild
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fftools ffmpeg: pass reference counted packet on codec copy when possible 2018-03-23 22:05:25 -03:00
libavcodec avcodec/extract_extradata: don't uninitialize the H2645Packet on every processed packet 2018-03-22 17:13:56 -03:00
libavdevice lavd: fix iterating of input and output devices 2018-03-18 17:45:20 +01:00
libavfilter avfilter/avf_showvolume: implement basic rms metering mode 2018-03-23 22:53:13 +01:00
libavformat lavf/movenc: write track title metadata for mov files 2018-03-22 20:59:16 +02:00
libavresample
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libavutil hwcontext_opencl: Add support for mapping DRM objects to Beignet 2018-03-22 23:19:00 +00:00
libpostproc
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libswresample swresample/rematrix: fix update of channel matrix if input or output layout is undefined 2018-02-19 08:32:25 +01:00
libswscale swscale: Introduce a helper to identify semi-planar formats 2018-03-03 15:20:19 -08:00
presets
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tests avutil/integer: move the test to the corresponding subdirectory 2018-03-20 23:27:58 -03:00
tools
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.gitattributes
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.gitignore
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.travis.yml
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CONTRIBUTING.md
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COPYING.GPLv2
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COPYING.GPLv3
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COPYING.LGPLv2.1
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COPYING.LGPLv3
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CREDITS
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Changelog changelog: add missing line for filter_units bsf 2018-03-22 01:19:13 -03:00
INSTALL.md
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LICENSE.md
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MAINTAINERS MAINTAINERS: add myself to mediacodec 2018-03-06 13:54:35 -08:00
Makefile lavd: add new API for iterating input and output devices 2018-02-06 18:57:42 +00:00
README.md
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RELEASE
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configure hwcontext_opencl: Add support for mapping DRM objects to Beignet 2018-03-22 23:19:00 +00:00

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.