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FFmpeg git repo
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Alexandra Hájková aebf07075f dca: change the core to work with integer coefficients. 
The DCA core decoder converts integer coefficients read from the
bitstream to floats just after reading them (along with dequantization).
All the other steps of the audio reconstruction are done with floats
which makes the output for the DTS lossless extension (XLL)
actually lossy.
This patch changes the DCA core to work with integer coefficients
until QMF. At this point the integer coefficients are converted to floats.
The coefficients for the LFE channel (lfe_data) are not touched.
This is the first step for the really lossless XLL decoding.
2015-12-23 11:50:18 +01:00
compat w32pthreads: Map MemoryBarrier to __sync_synchronize on mingw 2015-10-30 20:15:11 +02:00
doc lavc: add profiles to AVCodecDescriptor 2015-12-12 21:22:49 +01:00
libavcodec dca: change the core to work with integer coefficients. 2015-12-23 11:50:18 +01:00
libavdevice avfoundation: Simple capture 2015-11-26 10:55:28 +01:00
libavfilter vsrc_color: Drop unneeded variable 2015-11-30 10:58:46 -05:00
libavformat mpegtsenc: add flag to embed an AC-3 ES the DVB way 2015-12-14 15:16:33 +01:00
libavresample avresample: Mark avresample_buffer() as pointer to const 2015-12-14 15:16:33 +01:00
libavutil arm: add a cpu flag for the VFPv2 vector mode 2015-12-14 16:42:35 +01:00
libswscale lavu: Drop the {minus,plus}1 suffix from AVComponentDescriptor fields 2015-09-07 12:37:47 +02:00
presets
tests dca: change the core to work with integer coefficients. 2015-12-23 11:50:18 +01:00
tools avpacket: Replace av_free_packet with av_packet_unref 2015-10-26 18:00:55 +01:00
.gitattributes Treat all '*.pnm' files as non-text file 2014-11-28 17:52:43 -05:00
.gitignore Checkasm: assembly testing and benchmarking tool 2015-07-12 16:39:07 +02:00
.travis.yml travis: Enable OSX integration 2015-11-17 16:51:00 +01:00
arch.mak ppc: vsx: Implement float_dsp 2015-05-31 12:07:11 +02:00
avconv_dxva2.c avconv_dxva2: add hevc support 2015-01-27 09:06:05 +01:00
avconv_filter.c avconv: Do not try to configure filter outputs without streams 2015-10-07 18:45:50 +02:00
avconv_opt.c avconv: add support for Intel QSV-accelerated transcoding 2015-10-16 20:01:37 +02:00
avconv_qsv.c avconv: add support for Intel QSV-accelerated transcoding 2015-10-16 20:01:37 +02:00
avconv_vda.c avconv: vda: Unlock the pixel buffer once it is accessed 2015-07-09 00:10:13 +02:00
avconv_vdpau.c avconv_vdpau: allocate video surface of VDPAU-specified size 2014-12-25 20:47:49 +01:00
avconv.c avconv: pass the global codec side data to the muxer 2015-12-06 10:23:21 +01:00
avconv.h avconv: add support for Intel QSV-accelerated transcoding 2015-10-16 20:01:37 +02:00
avplay.c avpacket: Replace av_free_packet with av_packet_unref 2015-10-26 18:00:55 +01:00
avprobe.c avprobe: Unref the packet once it is used 2015-10-26 18:00:54 +01:00
Changelog lavf: G.723.1 muxer 2015-11-30 10:58:46 -05:00
cmdutils_common_opts.h
cmdutils.c cmdutils: Check for and report the correct codec capability 2015-10-25 22:47:13 +01:00
cmdutils.h avconv: use read_file() for reading the 2pass stats 2015-07-19 09:37:11 +02:00
common.mak build: add Solaris symbol versioning 2015-10-11 15:42:36 +02:00
configure lavc: export Dirac parsing API used by the ogg demuxer as public 2015-12-06 10:28:04 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
INSTALL
library.mak
LICENSE
Makefile configure: ObjC support 2015-11-26 10:39:15 +01:00
README
README.md doc: Add travis badge 2015-09-14 00:19:08 +02:00
RELEASE Make the RELEASE file match with the most recent tag 2014-12-01 07:51:14 -05:00
version.sh

README.md

Libav

Build Status

Libav 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.
  • libavresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.

Tools

  • avconv is a command line toolbox to manipulate, convert and stream multimedia content.
  • avplay is a minimalistic multimedia player.
  • avprobe is a simple analisys tool to inspect multimedia content.
  • 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

Conding examples are available in the doc/example directory.

License

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