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FFmpeg git repo
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Ganesh Ajjanagadde cb93df0dcb avcodec/aacsbr_tablegen: always initialize tables at runtime 
This gets rid of virtually useless hardcoded tables hackery. The reason
it is useless is that a 320 element lut is anyway placed regardless of
--enable-hardcoded-tables, from which all necessary tables are trivially
derived at runtime at very low cost:

sample benchmark (x86-64, Haswell, GNU/Linux, single run is really
what is relevant here since looping drastically changes the bench). Fluctuations
are on the order of 10% for the single run test:
39400 decicycles in aacsbr_tableinit,       1 runs,      0 skips
25325 decicycles in aacsbr_tableinit,       2 runs,      0 skips
18475 decicycles in aacsbr_tableinit,       4 runs,      0 skips
15008 decicycles in aacsbr_tableinit,       8 runs,      0 skips
13016 decicycles in aacsbr_tableinit,      16 runs,      0 skips
12005 decicycles in aacsbr_tableinit,      32 runs,      0 skips
11546 decicycles in aacsbr_tableinit,      64 runs,      0 skips
11506 decicycles in aacsbr_tableinit,     128 runs,      0 skips
11500 decicycles in aacsbr_tableinit,     256 runs,      0 skips
11183 decicycles in aacsbr_tableinit,     509 runs,      3 skips

Tested with FATE with/without --enable-hardcoded-tables.

Reviewed-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
2015-12-09 07:36:58 -05:00
compat
doc Merge commit 'f023d57d355ff3b917f1aad9b03db5c293ec4244' 2015-12-07 15:50:45 +01:00
libavcodec avcodec/aacsbr_tablegen: always initialize tables at runtime 2015-12-09 07:36:58 -05:00
libavdevice
libavfilter avfilter/vf_delogo: round to the closest value 2015-12-09 12:23:00 +01:00
libavformat Merge commit '5f3a081b42b84404a40a52c80ef7a354cf048c56' 2015-12-08 09:41:43 +01:00
libavresample
libavutil lavu/frame: use AVPALETTE_SIZE instead of 1024 2015-12-08 17:50:40 +01:00
libpostproc
libswresample swresample: use AV_OPT_TYPE_BOOL for linear_interp and cheby options 2015-12-04 15:43:33 +01:00
libswscale swscale/utils: replace pow by exp2 2015-12-08 22:00:05 -05:00
presets
tests avfilter/vf_delogo: round to the closest value 2015-12-09 12:23:00 +01:00
tools
.gitattributes
.gitignore
.travis.yml
arch.mak mips: rename mipsdspr1 to mipsdsp 2015-12-04 02:35:42 +01:00
Changelog avcodec: implement vp9 dxva2 hwaccel 2015-12-07 09:38:59 +01:00
cmdutils_common_opts.h
cmdutils_opencl.c
cmdutils.c cosmetics: Fix weird indentations 2015-12-07 10:43:43 -08:00
cmdutils.h
common.mak Merge commit '9f57f134c19773d54269b6cb9ee455ff87c2e9e1' 2015-12-05 12:21:33 +01:00
configure configure: fix vp9_d3d11va_hwaccel deps 2015-12-07 13:12:21 -03:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
ffmpeg_dxva2.c ffmpeg_dxva2: support vp9 hwaccel 2015-12-07 09:47:51 +01:00
ffmpeg_filter.c
ffmpeg_opt.c
ffmpeg_qsv.c
ffmpeg_vdpau.c
ffmpeg_videotoolbox.c
ffmpeg.c ffmpeg: When streamcopying, only add the input seek position when copying timestamps. 2015-12-05 04:24:22 +01:00
ffmpeg.h
ffplay.c ffplay: use hypot() 2015-12-06 08:11:47 -05:00
ffprobe.c ffprobe: Do not print profile names in -bitexact 2015-12-06 14:37:40 +01:00
ffserver_config.c
ffserver_config.h
ffserver.c
INSTALL.md
library.mak
LICENSE.md
MAINTAINERS
Makefile mips: rename mipsdspr1 to mipsdsp 2015-12-04 02:35:42 +01:00
README.md
RELEASE
version.sh

README.md

FFmpeg README

FFmpeg 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.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.

Tools

  • ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
  • ffplay is a minimalistic multimedia player.
  • ffprobe is a simple analysis tool to inspect multimedia content.
  • ffserver is a multimedia streaming server for live broadcasts.
  • 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

Coding examples are available in the doc/examples directory.

License

FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process. Few developers follow pull requests so they will likely be ignored.