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Anton Khirnov 5e2203448a configure: improve the help text for external libraries 
Add a more accurate description of what the switches actually do (i.e.
allow using the given library, not enabling the corresponding
codecs etc.).

Replace the library descriptions, in many cases boilerplate text without
useful information, with a short summary of what the library does.
2016-05-19 13:40:53 +02:00
compat jack: Support OSX 2016-03-31 18:03:21 +02:00
doc avio: Allow custom IO users to get labels for the output bytestream 2016-05-18 10:36:45 +03:00
libavcodec lavc: revert the Makefile part of 330177b 2016-05-19 13:40:53 +02:00
libavdevice Combine deprecation guards where appropriate 2016-05-13 15:14:30 +02:00
libavfilter tests: Move all test programs to a subdirectory 2016-05-13 14:55:56 +02:00
libavformat movenc: Write 'loci' geotag metadata for 3gp and mp4 2016-05-19 10:46:55 +03:00
libavresample tests: Move all test programs to a subdirectory 2016-05-13 14:55:56 +02:00
libavutil xtea-test: Use struct allocation functions from the API 2016-05-19 09:55:55 +02:00
libswscale tests: Move all test programs to a subdirectory 2016-05-13 14:55:56 +02:00
presets presets: spelling error in libvpx 1080p50_60 2011-10-22 00:28:56 +02:00
tests movenc: Add a test for VFR with b-frames, with a duration change at a fragment end 2016-05-18 10:37:05 +03:00
tools tools: Port to codec parameters API 2016-05-17 11:16:26 +02:00
.gitattributes Treat all '*.pnm' files as non-text file 2014-11-28 17:52:43 -05:00
.gitignore tests: Move all test programs to a subdirectory 2016-05-13 14:55:56 +02:00
.travis.yml travis: Enable OSX integration 2015-11-17 16:51:00 +01:00
arch.mak ppc: vsx: Implement float_dsp 2015-05-31 12:07:11 +02:00
avconv.c Add some more deprecation guards 2016-05-11 12:22:49 +02:00
avconv.h avconv: VAAPI hwcontext initialisation and hwaccel helper 2016-03-30 09:04:53 +02:00
avconv_dxva2.c avconv_dxva2: use the hwcontext API 2016-05-17 09:11:34 +02:00
avconv_filter.c avconv: VAAPI hwcontext initialisation and hwaccel helper 2016-03-30 09:04:53 +02:00
avconv_opt.c cosmetics: Fix spelling mistakes 2016-05-04 18:16:21 +02:00
avconv_qsv.c avconv: add support for Intel QSV-accelerated transcoding 2015-10-16 20:01:37 +02:00
avconv_vaapi.c avconv_vaapi: fix double-free with some unsupported streams 2016-05-10 11:30:25 +02:00
avconv_vda.c avconv: vda: Unlock the pixel buffer once it is accessed 2015-07-09 00:10:13 +02:00
avconv_vdpau.c Drop pointless assert.h #includes 2016-05-03 15:45:10 +02:00
avplay.c cosmetics: Fix spelling mistakes 2016-05-04 18:16:21 +02:00
avprobe.c avprobe: Print stereo3d information 2016-05-17 12:25:27 -04:00
Changelog lavf: Raw G.729 demuxer 2016-05-17 12:24:32 -04:00
cmdutils.c avconv: switch to the new BSF API 2016-03-20 08:15:01 +01:00
cmdutils.h avconv: use read_file() for reading the 2pass stats 2015-07-19 09:37:11 +02:00
cmdutils_common_opts.h avplay: Accept cpuflags option 2013-10-22 10:49:31 +02:00
common.mak tests: Move all test programs to a subdirectory 2016-05-13 14:55:56 +02:00
configure configure: improve the help text for external libraries 2016-05-19 13:40:53 +02:00
COPYING.GPLv2 Rename COPYING.GPL --> COPYING.GPLv2 and COPYING.LGPL --> COPYING.LGPLv2.1. 2009-06-05 09:51:31 +00:00
COPYING.GPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
COPYING.LGPLv2.1 cosmetics: Delete empty lines at end of file. 2012-02-09 12:26:45 +01:00
COPYING.LGPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
CREDITS partially rename FFmpeg to Libav 2011-03-16 21:54:39 +01:00
INSTALL doc: clarify configure features 2011-04-07 02:54:12 +02:00
library.mak tests: Move all test programs to a subdirectory 2016-05-13 14:55:56 +02:00
LICENSE license: Mention that vf_interlace is GPL, not LGPL 2014-08-28 19:47:43 +02:00
Makefile Generate the lists of enabled protocols/bsfs from configure. 2016-04-19 13:34:07 +02:00
README doc: Add more information in the README 2014-08-16 00:49:22 +02:00
README.md doc: Add travis badge 2015-09-14 00:19:08 +02:00
RELEASE Make the RELEASE file match with the most recent tag 2014-12-01 07:51:14 -05:00
version.sh Drop git- prefix from version labels 2011-06-19 19:41:23 +01:00

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.