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Vittorio Giovara 969f215957 hevc: Add support for alternative transfer characterics SEI 
The use of this SEI is for backward compatibility in HLG HDR systems:
older devices that cannot interpret the "arib-std-b67" transfer will
get the compatible transfer (usually bt709 or bt2020) from the VUI,
while newer devices that can interpret HDR will read the SEI and use
its value instead.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
2017-06-28 09:44:09 -04:00
avbuild build: Add an option for passing linker flags to the shared library build 2017-06-22 13:54:34 +02:00
avtools avconv_hw: Free device on initialisation failure 2017-06-18 17:01:49 +01:00
compat compat/atomics: add typecasts in atomic_compare_exchange_strong() 2016-12-08 15:53:58 -05:00
doc dxva: add support for new dxva2 and d3d11 hwaccel APIs 2017-06-08 21:20:18 +02:00
libavcodec hevc: Add support for alternative transfer characterics SEI 2017-06-28 09:44:09 -04:00
libavdevice avfoundation: update to use AVCodecParameters 2017-04-26 11:47:31 -04:00
libavfilter af_bs2b: Add missing casts to complex pointer assignments 2017-06-21 12:24:13 +02:00
libavformat tls_gnutls: Readd support for nonblocking operation 2017-06-20 23:55:52 +03:00
libavresample Bump major versions of all libraries 2017-03-23 09:56:20 +01:00
libavutil hwcontext_d3d11va: add option to enable debug mode 2017-06-27 00:23:12 +02:00
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README.md

Libav

Build Status

Libav 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.
  • libavresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.

Tools

  • avconv is a command line toolbox to manipulate, convert and stream multimedia content.
  • avplay is a minimalistic multimedia player.
  • avprobe is a simple analisys 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

Conding examples are available in the doc/example directory.

License

Libav codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.