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Steve Lhomme f7174d7ed0 configure: fix linking with MSVC when using --disable-optimizations 
Without any optimization flags, MSVC does no dead code elimination (DCE) at
all, even for the most trivial cases. DCE is a prerequisite for building libav
correctly, otherwise there are undefined references to functions for other
architectures and disabled components.

-O1 is the minimal optimization flag for MSVC that does include DCE.
2016-12-16 10:03:21 +01:00
compat compat/atomics: add typecasts in atomic_compare_exchange_strong() 2016-12-08 15:53:58 -05:00
doc lavc: add a bitstream filter for splitting VP9 superframes 2016-12-14 09:06:45 +01:00
libavcodec arm64: replace 'bic' with immediate with 'and' with inverted immediate 2016-12-14 21:53:05 +01:00
libavdevice build: Fix dependencies for alsa/jack/sndio support 2016-12-09 08:42:34 +01:00
libavfilter lavfi: Add VAAPI deinterlacer 2016-12-10 16:55:44 +00:00
libavformat rtmppkt: Check for packet size mismatches 2016-12-15 15:45:59 +02:00
libavresample
libavutil ppc: Merge types_altivec.h into util_altivec.h 2016-12-14 14:08:43 +01:00
libswscale ppc: Centralize compiler-specific altivec.h #include handling in one place 2016-12-14 14:08:43 +01:00
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tests fate: Add h264 test for frame num gaps 2016-12-14 11:01:50 +01:00
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avprobe.c avprobe: Allow specifying multiple stream entries to be shown 2016-12-07 14:35:08 -05:00
Changelog mov: Export spherical information 2016-12-07 14:35:06 -05:00
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configure configure: fix linking with MSVC when using --disable-optimizations 2016-12-16 10:03:21 +01:00
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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.