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Andreas Cadhalpun 480e18e6ff ac3dec_fixed: always use the USE_FIXED=1 variant of the AC3DecodeContext 
The AC3DecodeContext has a float (USE_FIXED=0) and an integer
(USE_FIXED=1) variant, both of which can be present in the same binary.
This is not only very confusing, but it also breaks horribly, when one
variant is used by code expecting the other.

This currently happens, because eac3dec.c is only compiled for the float
variant, but also used from ac3dec_fixed.c, which uses the integer
variant.

The result is memory corruption, leading to crashes.

So compile eac3dec.c once for each variant and adapt it, so that it
works with the integer variant.

A loss of precission and scaling bug has been fixed by the committer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 7b05b5093e)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-03-14 04:42:15 +01:00
compat compat/avisynth/windowsPorts/windows2linux: Add () to protect macro arguments 2015-02-18 01:49:35 +01:00
doc doc: avoid the incorrect phrase 'allow to' 2015-03-13 13:04:31 +01:00
libavcodec ac3dec_fixed: always use the USE_FIXED=1 variant of the AC3DecodeContext 2015-03-14 04:42:15 +01:00
libavdevice fix spelling errors 2015-03-06 22:26:53 +01:00
libavfilter lavfi/boxblur: Fix colourspace list. 2015-03-13 09:46:10 +01:00
libavformat asfenc: fix leaking asf->index_ptr on error 2015-03-13 13:04:31 +01:00
libavresample Merge commit '12655c4804' 2015-02-22 00:06:23 +01:00
libavutil mips/asmdefs: use _ABI64 as defined by gcc 2015-03-13 13:04:32 +01:00
libpostproc postproc: mark alloc/free context functions as av_cold 2015-02-27 16:15:31 +01:00
libswresample swresample: Add prefix to soxr_resampler 2015-02-27 19:20:43 +01:00
libswscale swscale: Add prefix to updateMMXDitherTables() 2015-02-27 19:23:46 +01:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests avutil/opt: Do not print inf in selftest 2015-03-05 13:50:22 +01:00
tools tools/graph2dot: Check for av_malloc() failure 2015-02-22 22:51:13 +01:00
.gitattributes Treat all '*.pnm' files as non-text file 2014-11-28 17:52:43 -05:00
.gitignore Merge commit '11e0553317' 2015-02-02 21:16:15 +01:00
arch.mak configure, mips: remove MIPS32R2, merging it with MIPSFPU 2015-03-06 14:01:31 +01:00
Changelog ChangeLog: Remove the redundant VP9 RTP entry 2015-03-13 13:04:31 +01:00
cmdutils.c cmdutils: fix success path 2015-02-11 17:28:11 +01:00
cmdutils.h opts: add list device sources/sinks options 2014-10-25 20:20:31 +02:00
cmdutils_common_opts.h opts: add list device sources/sinks options 2014-10-25 20:20:31 +02:00
cmdutils_opencl.c cmdutils_opencl: Use av_malloc_array() 2014-07-01 03:49:36 +02:00
common.mak Makefile: improve DBG option for asm 2015-02-21 03:23:55 +01:00
configure Add dependencies to configure file for vf_fftfilt 2015-03-13 13:04:31 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS CREDITS: redirect to Git log, remove current outdated content 2013-01-31 18:02:52 +01:00
ffmpeg.c ffmpeg: comment mpeg4 hack 2015-03-03 20:25:28 +01:00
ffmpeg.h ffmpeg: allow to set the thread message queue size. 2015-02-26 19:19:56 +01:00
ffmpeg_dxva2.c ffmpeg_dxva2: add hevc support 2015-01-27 12:37:34 +01:00
ffmpeg_filter.c ffmpeg: fix accurate seeking with -copyts 2014-11-24 17:31:26 +01:00
ffmpeg_opt.c ffmpeg: allow to set the thread message queue size. 2015-02-26 19:19:56 +01:00
ffmpeg_vda.c Merge commit '1839fafa95' 2014-05-12 02:44:28 +02:00
ffmpeg_vdpau.c Merge commit '1f9237f2ac' 2014-12-27 13:26:38 +01:00
ffplay.c ffplay: Switch to show waves mode if allocation/init of RDFT fails 2015-03-04 03:04:04 +01:00
ffprobe.c ffprobe: Change string_validation to int, its accessed via AVOption as int 2015-03-02 04:06:39 +01:00
ffserver.c ffserver: fix wrong indentation 2015-02-15 15:15:41 -03:00
ffserver_config.c ffserver_config: reflow add_codec() 2014-12-09 01:03:01 -03:00
ffserver_config.h ffserver: dont leak child arguments 2014-11-26 23:32:33 +01:00
INSTALL.md INSTALL: add markdown syntax 2014-05-28 22:38:38 +02:00
library.mak x86/doc/Makefile: DBG=1 to preprocess external asm 2015-02-17 13:08:04 +01:00
LICENSE.md LICENSE.md: Formatting updates 2015-02-12 01:53:56 +01:00
MAINTAINERS Add 2.6 to maintained releases 2015-03-06 17:49:22 +01:00
Makefile configure, mips: remove MIPS32R2, merging it with MIPSFPU 2015-03-06 14:01:31 +01:00
README.md README: add ffserver 2015-02-12 11:59:22 +01:00
RELEASE Update for 2.6 2015-03-06 17:32:52 +01:00
RELEASE_NOTES RELEASE_NOTES: small grammar fixes and improvements 2015-03-06 22:15:47 -03:00
version.sh version.sh: Print versions based on the last git tag for release branches 2014-07-28 15:44:59 +02:00

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.