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Vittorio Giovara ebf3b9e8a8 h264: 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>
2017-08-10 15:32:59 +02:00
avbuild build: Add an option for passing linker flags to the shared library build 2017-06-22 13:54:34 +02:00
avtools avconv: when using -loop option bail out if seek to start fails 2017-07-28 13:13:44 +02:00
compat compat/atomics: add typecasts in atomic_compare_exchange_strong() 2016-12-08 15:53:58 -05:00
doc vaapi_encode: Move quality option to common code 2017-08-06 14:42:04 +01:00
libavcodec h264: Add support for alternative transfer characterics SEI 2017-08-10 15:32:59 +02:00
libavdevice avfoundation: update to use AVCodecParameters 2017-04-26 11:47:31 -04:00
libavfilter lavf/vf_deinterlace_qsv: Enable the qsv deinterlace vpp 2017-07-25 13:27:52 +02:00
libavformat hevc: Improve stream constraint values in common header 2017-08-05 23:54:35 +01:00
libavresample Bump major versions of all libraries 2017-03-23 09:56:20 +01:00
libavutil imgutils: add function to clear an image to black 2017-07-26 23:21:26 +02:00
libswscale build: Add feature test macros for glibc 2.19+ 2017-07-10 10:22:56 +02:00
presets
tests fate/hevc: specify output pixel format explicitly 2017-07-28 14:12:36 +02:00
tools build: Move entries related to building TOOLS to a subdirectory Makefile 2016-12-07 11:02:31 +01:00
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.gitignore build: Ignore generated .version files 2017-02-03 11:37:53 +01:00
.travis.yml travis: Exclude gcc for the macOS target 2017-04-20 12:53:08 +02:00
Changelog hevcdec: add a CUVID hwaccel 2017-07-28 14:12:56 +02:00
configure hevcdec: add a CUVID hwaccel 2017-07-28 14:12:56 +02:00
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LICENSE Remove the legacy X11 screen grabber 2016-07-29 19:03:10 +02:00
Makefile build: Allow generating dependencies as a side-effect of assembling 2017-03-01 10:18:15 +01:00
README.md
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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.