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005d058f42
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Marton Balint 005d058f42 lavfi/loudnorm: add an internal libebur128 library 
Also contains the following changes to the library:
- add ff_ prefix to functions
- remove cplusplus defines.
- add FF_ prefix to contants and some structs
- remove true peak calculation feature, since it uses its own resampler, and
  af_loudnorm does not need it.
- remove version info and some fprintf(stderr) functions
- convert to use av_malloc
- always use histogram mode for LRA calculation, otherwise LRA data is slowly
  consuming memory making af_loudnorm unfit for 24/7 operation. It also uses a
  BSD style linked list implementation which is probably not available on all
  platforms. So let's just remove the classic mode which not uses histogram.
- add ff_thread_once for calculating static histogram tables
- convert some functions to void which cannot fail
- remove intrinsics and some unused headers
- add support for planar audio
- remove channel / sample rate changer function, in ffmpeg usually we simply
  alloc a new context
- convert some static variables to defines
- declare static histogram variables as aligned
- convert some initalizations to mallocz
- add window size parameter to init function and remove window size setter
  function
- convert return codes to AVERROR
- fix indentation

Signed-off-by: Marton Balint <cus@passwd.hu>
2016-11-11 19:37:54 +01:00
compat compat/w32dlfcn.h: Add safe win32 dlopen/dlclose/dlsym functions. 2016-11-05 18:08:32 +11:00
doc lavfi/loudnorm: add an internal libebur128 library 2016-11-11 19:37:54 +01:00
libavcodec dvbsubdec: fix division by zero in compute_default_clut 2016-11-10 21:01:59 +01:00
libavdevice lavd/xcbgrab: do not try to create refcounted packets. 2016-11-03 21:23:55 +01:00
libavfilter lavfi/loudnorm: add an internal libebur128 library 2016-11-11 19:37:54 +01:00
libavformat icodec: correctly check avio_read return value 2016-11-10 22:02:49 +01:00
libavresample Bump minor versions after 3.2 branchpoint to seperate release 2016-10-26 20:52:42 +02:00
libavutil pixfmt: Add GRAY12 2016-11-10 00:42:48 +01:00
libpostproc Bump minor versions after 3.2 branchpoint to seperate release 2016-10-26 20:52:42 +02:00
libswresample Bump minor versions after 3.2 branchpoint to seperate release 2016-10-26 20:52:42 +02:00
libswscale swscale: Add GRAY12 2016-11-10 00:49:29 +01:00
presets
tests lavf/mov.c: Fallback to finding non-keyframe in fix_index, if keyframe search fails. 2016-11-10 17:44:47 +01:00
tools tools: add loudnorm script example to use loudnorm 2016-11-11 19:22:52 +01:00
.gitattributes
.gitignore Merge commit '6641819feedb086ebba3d2be89b8d33980f367e1' 2016-06-26 15:43:05 +02:00
.travis.yml
arch.mak
Changelog lavfi/loudnorm: add an internal libebur128 library 2016-11-11 19:37:54 +01:00
cmdutils_common_opts.h cmdutils: add show_demuxers and show_muxers 2016-11-08 01:56:31 +01:00
cmdutils_opencl.c
cmdutils.c cmdutils: add show_demuxers and show_muxers 2016-11-08 01:56:31 +01:00
cmdutils.h cmdutils: add show_demuxers and show_muxers 2016-11-08 01:56:31 +01:00
common.mak Merge commit 'c5fd4b50610f62cbb3baa4f4108139363128dea1' 2016-06-27 19:39:46 +02:00
configure lavfi/loudnorm: add an internal libebur128 library 2016-11-11 19:37:54 +01:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
ffmpeg_cuvid.c doc: fix spelling errors 2016-10-21 23:58:47 +02:00
ffmpeg_dxva2.c Merge commit '18c506e9e6e8df8b1d496d093077b8240ea68c28' 2016-06-26 15:34:01 +02:00
ffmpeg_filter.c ffmpeg: parameters for filter thread counts 2016-11-06 15:27:25 +01:00
ffmpeg_opt.c ffmpeg: parameters for filter thread counts 2016-11-06 15:27:25 +01:00
ffmpeg_qsv.c ffmpeg/qsv: fix QSV-accelerated transcode performance drop issue. 2016-08-16 17:09:33 +02:00
ffmpeg_vaapi.c ffmpeg_vaapi: fix choice of decoder_format 2016-09-29 01:23:52 +02:00
ffmpeg_vdpau.c Merge commit 'f72db3f2f3a8c83a4f5dede8fa03434b2bf676c6' 2016-06-26 15:29:39 +02:00
ffmpeg_videotoolbox.c
ffmpeg.c ffmpeg: don't overwrite av_bsf_receive_packet return value before checking it 2016-11-05 00:04:27 -03:00
ffmpeg.h ffmpeg: parameters for filter thread counts 2016-11-06 15:27:25 +01:00
ffplay.c Merge commit 'beb62dac629603eb074a44c44389c230b5caac7c' 2016-10-07 13:16:36 +02:00
ffprobe.c lavf: add AV_DISPOSITION_TIMED_THUMBNAILS 2016-10-24 05:47:05 -05:00
ffserver_config.c ffserver: Throw ffm.h out its not used except for a constant that is part of the format 2016-11-07 19:27:40 +01:00
ffserver_config.h ffserver: Throw ffm.h out its not used except for a constant that is part of the format 2016-11-07 19:27:40 +01:00
ffserver.c ffserver: use AVStream.codecpar in open_input_stream() 2016-11-08 12:12:19 +01:00
INSTALL.md
library.mak Merge commit 'c5fd4b50610f62cbb3baa4f4108139363128dea1' 2016-06-27 19:39:46 +02:00
LICENSE.md lavc: remove libfaac wrapper 2016-10-01 19:58:04 +01:00
MAINTAINERS MAINTAINERS: Add myself to flvenc 2016-11-09 17:49:19 +01:00
Makefile Merge commit '6641819feedb086ebba3d2be89b8d33980f367e1' 2016-06-26 15:43:05 +02:00
README.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
RELEASE RELEASE: Update for past 3.2 branch 2016-10-26 20:52:43 +02:00
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 and will be ignored.