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Rostislav Pehlivanov 4565611b04 aacenc_is: add a flag to use pure coefficients instead This commit adds a flag to use the pure coefficients instead of the processed ones (sce->coeffs). This is needed because IS will apply the changes to the coefficients immediately before the adjust_common_prediction function and it doesn't make sense to measure stereo channel coefficient difference when one of the channels coefficients are all zero. Therefore add a flag to use pure coefficients in that case. TNS is the only thing touching the coefficients before IS so common window prediction will not take that into account but the effect of the TNS filter per coefficient can be small (a few percent) so to some approximation it's fine to just ignore that. Also fixed a small error which doesn't alter the results that much. pow(sqrt(number), 3.0/4.0) == pow(number, 3.0/8.0) != pow(number, 3.0/4.0). Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>		2015-09-05 08:32:09 +01:00
compat
doc	avfilter/vf_waveform: change intensity to float	2015-09-04 17:14:32 +00:00
libavcodec	aacenc_is: add a flag to use pure coefficients instead	2015-09-05 08:32:09 +01:00
libavdevice
libavfilter	avfilter/vf_vectorscope: change intensity to float	2015-09-04 18:47:46 +00:00
libavformat	lavf/mxfdec: Support more codecs in mxf_picture_essence_container_uls[].	2015-09-05 00:11:14 +02:00
libavresample
libavutil	avutil/common: Add FFNABS()	2015-09-03 09:05:50 +02:00
libpostproc
libswresample	swresample/swresample: Fix integer overflow in seed calculation	2015-09-03 09:32:43 +02:00
libswscale	swscale: re-enable gamma	2015-09-04 19:00:20 -03:00
presets
tests	vp9_parse: fix parsing of pskip and profile 2/3.	2015-09-04 09:59:17 -04:00
tools
.gitattributes
.gitignore
arch.mak
Changelog	lavc/j2kenc: Remove experimental flag.	2015-09-04 23:48:32 +02:00
cmdutils_common_opts.h
cmdutils_opencl.c
cmdutils.c
cmdutils.h
common.mak
configure
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
ffmpeg_dxva2.c
ffmpeg_filter.c
ffmpeg_opt.c	ffmpeg: Improve help text for -target.	2015-09-02 14:32:06 +02:00
ffmpeg_vdpau.c
ffmpeg_videotoolbox.c
ffmpeg.c	ffmpeg: Drop redundant ist check	2015-09-04 11:42:23 +02:00
ffmpeg.h
ffplay.c
ffprobe.c
ffserver_config.c
ffserver_config.h
ffserver.c
INSTALL.md
library.mak
LICENSE.md
MAINTAINERS
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.