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FFmpeg git repo
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Rostislav Pehlivanov fa4d900c27 aacenc_tns: rework TNS descision logic 
Changes:
 - strongly prefer dual filters to a single filter
 - less strict about using 2 filters w.r.t. energy
 - scrap the usage of threshold and spread, useless
 - use odd-shaped windows to set the filter direction
 - use 4 bits instead of 3 bits for short windows
 - simplify and reduce the main loop to a single level
 - add stricter regulations for short windows

All of this now makes the TNS implementation operate
as good as it can and it definitely shows. The frequency
thresholds are now even better defined by looking at
the spectrals and the overall sound has been improved at
the price of just a few bits that are well worth it.
2015-10-17 11:10:26 +01:00
compat w32pthreads: fix mingw build on x86 with -msse2 or higher 2015-10-16 14:54:48 +02:00
doc doc/ffmpeg: use stream_loop instead of loop 2015-10-14 21:56:31 -04:00
libavcodec aacenc_tns: rework TNS descision logic 2015-10-17 11:10:26 +01:00
libavdevice avdevice/internal: add av_warn_unused_result 2015-10-16 17:28:40 -04:00
libavfilter avfilter/avfiltergraph: fix -Wunused-result warnings 2015-10-16 21:58:50 -04:00
libavformat avformat/rsd: propagate return values of extradata helper functions 2015-10-16 16:11:58 -03:00
libavresample
libavutil opencl: Force the use of 1.2 APIs 2015-10-17 01:16:50 -07:00
libpostproc
libswresample swresample/swresample_internal: add av_warn_unused_result 2015-10-15 22:27:23 -04:00
libswscale swscale/swscale: add av_warn_unused_result to sws_init_context 2015-10-16 17:18:21 -04:00
presets
tests aacenc: increase fuzz on aac-ms-encode test 2015-10-17 06:55:19 +01:00
tools
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Changelog avformat: add svag demuxer 2015-10-16 16:37:41 +02:00
cmdutils_common_opts.h
cmdutils_opencl.c
cmdutils.c Merge commit '9ef748173a4e0e58d40afaf38397783cd2537eaa' 2015-10-16 22:57:21 +02:00
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configure mips: disable all features in configure if no cpu is matched 2015-10-15 20:19:10 +02:00
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CREDITS
ffmpeg_dxva2.c
ffmpeg_filter.c
ffmpeg_opt.c ffmpeg_opt: rename loop option to stream_loop 2015-10-14 21:06:28 +02:00
ffmpeg_vdpau.c
ffmpeg_videotoolbox.c ffmpeg/videotoolbox: protect UTGetOSTypeFromString on both VDA and VT 2015-10-15 10:22:31 +02:00
ffmpeg.c ffmpeg: add deprecation guards around remaining AVFMT_RAWPICTURE usage 2015-10-14 14:52:43 +02:00
ffmpeg.h Merge commit '16b0c929621f84983b83b9735ce973acb12723bc' 2015-10-14 14:28:20 +02:00
ffplay.c
ffprobe.c
ffserver_config.c ffserver_config: check for INT_MIN before doing FFABS 2015-10-13 19:40:09 -04:00
ffserver_config.h
ffserver.c
INSTALL.md
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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.