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Martin Storsjö dc7501e524 checkasm: Issue emms after benchmarking functions
The functions may not clean up properly after using MMX
registers. For the normal testing calls, the checkasm_checked_call
functions will do the cleanup (and check that functions that
should clean up do it as well), but when benchmarking functions
that don't clean up, we don't currently properly clean up at all.

This causes issues if a benchmarked function is followed by testing
of a function that is supposed to not clobber the MMX/FPU state but
doesn't touch it at all.

Signed-off-by: Martin Storsjö <martin@martin.st>
2016-06-21 22:09:29 +03:00
compat jack: Support OSX 2016-03-31 18:03:21 +02:00
doc lavc: export the timestamps when decoding in AVFrame.pts 2016-06-21 19:54:42 +02:00
libavcodec lavc: export the timestamps when decoding in AVFrame.pts 2016-06-21 19:54:42 +02:00
libavdevice avdevice: Ignore timefilter test program 2016-06-14 11:14:06 +02:00
libavfilter Use AVFrame.pts instead of deprecated pkt_pts. 2016-06-21 19:54:42 +02:00
libavformat Add TrueMotion 2.0 Real Time decoder 2016-06-20 15:48:12 -04:00
libavresample build: Change structure of the linker version script templates 2016-05-29 16:43:11 +02:00
libavutil lavc: export the timestamps when decoding in AVFrame.pts 2016-06-21 19:54:42 +02:00
libswscale build: Change structure of the linker version script templates 2016-05-29 16:43:11 +02:00
presets presets: spelling error in libvpx 1080p50_60 2011-10-22 00:28:56 +02:00
tests checkasm: Issue emms after benchmarking functions 2016-06-21 22:09:29 +03:00
tools tools: Port to codec parameters API 2016-05-17 11:16:26 +02:00
.gitattributes Treat all '*.pnm' files as non-text file 2014-11-28 17:52:43 -05:00
.gitignore build: Ignore generated mapfile and remove it on distclean 2016-05-27 11:27:24 +02:00
.travis.yml travis: Enable OSX integration 2015-11-17 16:51:00 +01:00
COPYING.GPLv2 Rename COPYING.GPL --> COPYING.GPLv2 and COPYING.LGPL --> COPYING.LGPLv2.1. 2009-06-05 09:51:31 +00:00
COPYING.GPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
COPYING.LGPLv2.1 cosmetics: Delete empty lines at end of file. 2012-02-09 12:26:45 +01:00
COPYING.LGPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
CREDITS partially rename FFmpeg to Libav 2011-03-16 21:54:39 +01:00
Changelog lavfi: add a QSV scaling filter 2016-06-21 19:53:38 +02:00
INSTALL doc: clarify configure features 2011-04-07 02:54:12 +02:00
LICENSE LICENSE: Fix silly typo 2016-06-14 11:14:06 +02:00
Makefile build: Simplify postprocessing of linker version script files 2016-05-29 16:49:16 +02:00
README doc: Add more information in the README 2014-08-16 00:49:22 +02:00
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
arch.mak ppc: vsx: Implement float_dsp 2015-05-31 12:07:11 +02:00
avconv.c Use AVFrame.pts instead of deprecated pkt_pts. 2016-06-21 19:54:42 +02:00
avconv.h avconv: create simple filtergraphs earlier 2016-06-21 12:39:02 +02:00
avconv_dxva2.c avconv_dxva2: use the hwcontext device creation API 2016-05-26 15:40:34 +02:00
avconv_filter.c avconv: create simple filtergraphs earlier 2016-06-21 12:39:02 +02:00
avconv_opt.c avconv: initialize output framerate earlier 2016-06-21 12:39:02 +02:00
avconv_qsv.c avconv: add support for Intel QSV-accelerated transcoding 2015-10-16 20:01:37 +02:00
avconv_vaapi.c avconv_vaapi: use the hwcontext device creation API 2016-05-26 15:40:34 +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: use the hwcontext device creation API 2016-05-26 15:40:34 +02:00
avplay.c Use AVFrame.pts instead of deprecated pkt_pts. 2016-06-21 19:54:42 +02:00
avprobe.c avprobe: Print stereo3d information 2016-05-17 12:25:27 -04:00
cmdutils.c avconv: switch to the new BSF API 2016-03-20 08:15:01 +01:00
cmdutils.h avconv: use read_file() for reading the 2pass stats 2015-07-19 09:37:11 +02:00
cmdutils_common_opts.h avplay: Accept cpuflags option 2013-10-22 10:49:31 +02:00
common.mak build: Simplify postprocessing of linker version script files 2016-05-29 16:49:16 +02:00
configure lavfi: add a QSV scaling filter 2016-06-21 19:53:38 +02:00
library.mak build: Simplify postprocessing of linker version script files 2016-05-29 16:49:16 +02:00
version.sh Drop git- prefix from version labels 2011-06-19 19:41:23 +01:00

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.