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wm4 70e5e7c022 dxva: add declarative profile checks 
Make supported codec profiles part of each dxva_modes entry. Every DXVA2
mode is representative for a codec with a subset of supported profiles,
so reflecting that in dxva_modes seems appropriate.

In practice, this will more strictly check MPEG2 profiles, will stop
relying on the surface format checks for selecting the correct HEVC
profile, and remove the verbose messages for mismatching H264/HEVC
profiles. Instead of the latter, it will now print the more nebulous "No
decoder device for codec found" verbose message.

This also respects AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH. Move the
Main10 HEVC entry before the normal one to make this work better.

Originally inspired by VLC's code.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2017-06-27 00:23:12 +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_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 dxva: add declarative profile checks 2017-06-27 00:23:12 +02:00
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 d3d11va: Link directly to dxgi.dll and d3d11.dll functions if LoadLibrary is unavailable 2017-06-18 23:45:03 +03:00
libswscale swscale-test: const correctness 2017-04-24 16:10:05 +02:00
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tests movenc-test: Add tests for negative cts offsets 2017-05-15 14:08:53 +03:00
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
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Changelog dxva: add support for new dxva2 and d3d11 hwaccel APIs 2017-06-08 21:20:18 +02:00
configure configure: Reset X86ASM_DEP(FLAGS) when probing for the assembler program 2017-06-24 21:30:42 +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.