RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2025-01-30 11:24:17 +00:00
Code Issues Projects Releases Wiki Activity
FFmpeg git repo
74,559 Commits 37 Branches 400 Tags 262 MiB
C 90.3%
Assembly 7.8%
Makefile 1.3%
C++ 0.2%
Objective-C 0.2%
Other 0.1%
a1c487e921
Go to file
Rostislav Pehlivanov a1c487e921 aacenc_tns: implement temporal noise shaping 
This commit implements temporal noise shaping support in the
encoder, along with an -aac_tns option to toggle it on or off
(off by default for now). TNS will increase audio quality
and reduce quantization noise by applying a multitap FIR filter
across allowed coefficients and transmit side information to the
decoder so it could create an inverse filter.

Users are encouraged to test the new functionality by enabling
-aac_tns 1 during encoding.

No major bugs are observable at this time so after a while if no
new problems appear and if the current implementation is deemed
of high enough quality and stability it will be enabled by default,
possibly at the same time the encoder has its experimental flag
removed and becomes the standard aac encoder in ffmpeg.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2015-08-21 19:27:38 +01:00
compat
doc Add support for Audible AA files 2015-08-21 04:24:58 +00:00
libavcodec aacenc_tns: implement temporal noise shaping 2015-08-21 19:27:38 +01:00
libavdevice
libavfilter avfilter/vf_vectorscope: Fix ;; 2015-08-21 13:16:34 +02:00
libavformat avformat/hls: correct comment for ensure_playlist() 2015-08-21 14:21:10 +02:00
libavresample
libavutil
libpostproc
libswresample
libswscale swscale/alphablend: Fix pointer type warnings 2015-08-21 12:14:08 +02:00
presets
tests api-seek-test: first version 2015-08-20 21:40:11 +02:00
tools graph2dot: use avfilter_pad_get_name accessor function 2015-08-20 22:38:01 +02:00
.gitattributes
.gitignore
arch.mak
Changelog avfilter: add video vectorscope filter 2015-08-20 22:57:47 +00:00
cmdutils_common_opts.h
cmdutils_opencl.c
cmdutils.c
cmdutils.h
common.mak
configure configure: Check for CoreServices/CoreServices.h and make vda+viedotoolbox depend on it 2015-08-19 22:49:20 +02:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
ffmpeg_dxva2.c
ffmpeg_filter.c
ffmpeg_opt.c
ffmpeg_vdpau.c
ffmpeg_videotoolbox.c
ffmpeg.c ffmpeg: use av_err2str() 2015-08-21 12:11:09 +02:00
ffmpeg.h
ffplay.c
ffprobe.c
ffserver_config.c
ffserver_config.h
ffserver.c ffserver: cast PID to int64_t before printing 2015-08-21 15:47:54 +02:00
INSTALL.md
library.mak
LICENSE.md
MAINTAINERS Add support for Audible AA files 2015-08-21 04:24:58 +00:00
Makefile
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.