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Anton Khirnov 2df0c32ea1 lavc: use a separate field for exporting audio encoder padding 
Currently, the amount of padding inserted at the beginning by some audio
encoders, is exported through AVCodecContext.delay. However
- the term 'delay' is heavily overloaded and can have multiple different
  meanings even in the case of audio encoding.
- this field has entirely different meanings, depending on whether the
  codec context is used for encoding or decoding (and has yet another
  different meaning for video), preventing generic handling of the codec
  context.

Therefore, add a new field -- AVCodecContext.initial_padding. It could
conceivably be used for decoding as well at a later point.
2014-10-13 19:09:01 +00:00
compat w32pthreads: use the condition variable API directly when targeting newer versions of Windows 2014-10-10 11:27:30 +03:00
doc lavc: use a separate field for exporting audio encoder padding 2014-10-13 19:09:01 +00:00
libavcodec lavc: use a separate field for exporting audio encoder padding 2014-10-13 19:09:01 +00:00
libavdevice x11grab: Check the XQueryPointer return value 2014-10-04 23:46:46 +02:00
libavfilter setpts: Add missing inttypes.h #include for PRId64 2014-08-21 04:18:24 -07:00
libavformat icecast: Do not use chunked post 2014-10-12 19:54:07 +02:00
libavresample lavr: Update the planar check in ff_audio_convert 2014-08-17 16:11:02 +02:00
libavutil pixdesc: return color properties names 2014-10-08 18:17:49 +01:00
libswscale Bump major versions of all libraries. 2014-08-09 16:58:33 +00:00
presets presets: spelling error in libvpx 1080p50_60 2011-10-22 00:28:56 +02:00
tests lavf: Don't drop both pts and dts if timestamps are invalid 2014-10-12 01:32:52 +03:00
tools ismindex: handle discontinuous streams better 2014-10-09 11:21:49 +03:00
.gitignore fate: Split fate-pixdesc tests and dispatch them through Make 2014-08-01 01:18:30 -07:00
arch.mak aarch64: add armv8 CPU flag 2014-04-06 21:18:49 +02:00
avconv_dxva2.c avconv_dxva2: define all used GUIDs directly instead of relying on the dxva2api.h header 2014-04-29 16:50:43 +02:00
avconv_filter.c avconv: do not use the stream codec context for encoding 2014-06-01 08:33:21 +02:00
avconv_opt.c avconv: fix parsing the AVOptions for -target 2014-08-27 06:21:55 +00:00
avconv_vda.c avconv: Support VDA hwaccel 2014-05-11 15:00:03 +02:00
avconv_vdpau.c avconv_vdpau: update to new VDPAU interface 2014-10-06 06:20:40 +00:00
avconv.c avconv: Use only audio and video to guess discontinuities 2014-09-26 20:56:16 +02:00
avconv.h avconv: do not use the stream codec context for encoding 2014-06-01 08:33:21 +02:00
avplay.c avplay: Exit by default at the end of playback 2014-09-06 16:52:59 +02:00
avprobe.c avprobe: print color properties for show_streams 2014-10-08 18:17:49 +01:00
Changelog rtpenc: HEVC/H.265 support 2014-09-24 23:33:26 +03:00
cmdutils_common_opts.h avplay: Accept cpuflags option 2013-10-22 10:49:31 +02:00
cmdutils.c cmdutils: Print a more sensible message in show_filters() w/o libavfilter 2014-09-16 09:37:14 -07:00
cmdutils.h cmdutils: Mark exit_program as av_noreturn 2014-03-28 00:40:43 +01:00
common.mak build: export library dependencies in ${name}_FFLIBS 2014-05-20 00:43:51 +02:00
configure w32pthreads: use the CONDITION_VARIABLE typedef if available 2014-10-10 11:27:26 +03:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1 cosmetics: Delete empty lines at end of file. 2012-02-09 12:26:45 +01:00
COPYING.LGPLv3
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 build: Support executable only ldflags 2014-07-21 22:18:35 +02:00
LICENSE license: Mention that vf_interlace is GPL, not LGPL 2014-08-28 19:47:43 +02:00
Makefile configure: add support for neon intrinsics 2014-07-21 23:18:29 +02:00
README doc: Add more information in the README 2014-08-16 00:49:22 +02:00
README.md doc: Add more information in the README 2014-08-16 00:49:22 +02:00
RELEASE Prepare for 11_beta2 Release 2014-08-23 10:12:16 -04:00
version.sh Drop git- prefix from version labels 2011-06-19 19:41:23 +01:00

README.md

Libav

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.