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Mark Thompson ff007e30d8 vaapi_h264: Add workaround for bad SEI in old Intel drivers 
With pre-2.0 Intel drivers in CBR mode, if an explicit SEI message with
the old (now deprecated) type is not included, the driver generates and
inserts some timing SEI which is almost certainly invlaid.  Before
7a4fac5e91 we always inserted our own SEI
so this would not be visible, but since then it has been possible to
disable that.  We would also like to avoid using the deprecated type,
and using the new type, while working in old drivers, does not suppress
the spurious message like the old type does.

Therefore, suppress the bad SEI insertion by providing a zero-length
buffer with the old type, which the driver can insert harmlessly.
2017-11-12 15:59:45 +00:00
avbuild build: Add missing config.sh dependency for pkg-config files 2017-11-09 15:22:03 +01:00
avtools avconv.c: fix calculation of input file duration in seek_to_start() 2017-11-04 17:58:47 +01:00
compat build: Drop support for legacy TI ARM compiler 2017-10-25 13:39:58 +02:00
doc doc: Provide better examples for hls and segment muxing 2017-10-27 19:52:48 +02:00
libavcodec vaapi_h264: Add workaround for bad SEI in old Intel drivers 2017-11-12 15:59:45 +00:00
libavdevice Remove dv1394 input device 2017-10-13 23:57:59 +02:00
libavfilter vaapi: Always free parameter buffers after vaEndPicture() with libva2 2017-10-25 00:00:49 +01:00
libavformat matroskadec: allow RealAudio/Cook/Sipro streams of flavor 0 2017-11-06 17:30:05 -05:00
libavresample Bump major versions of all libraries 2017-03-23 09:56:20 +01:00
libavutil build: Drop support for legacy TI ARM compiler 2017-10-25 13:39:58 +02:00
libswscale build: Drop check for sys/mman.h in favor of mmap() check 2017-10-10 23:20:16 +02:00
presets presets: spelling error in libvpx 1080p50_60 2011-10-22 00:28:56 +02:00
tests FATE: add a test for the H.264 sample fixed by 7c4f6f6 2017-10-19 16:38:51 +02:00
tools aviocat: Check for output write errors 2017-09-04 09:42:52 +03:00
.gitattributes Treat all '*.pnm' files as non-text file 2014-11-28 17:52:43 -05:00
.gitignore build: Ignore generated .version files 2017-02-03 11:37:53 +01:00
.travis.yml travis: Exclude gcc for the macOS target 2017-04-20 12:53:08 +02:00
Changelog libavfilter/overlay_qsv: Add QSV overlay vpp filter 2017-09-17 19:59:06 +02:00
configure build: Add missing config.sh dependency for pkg-config files 2017-11-09 15:22:03 +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
INSTALL doc: clarify configure features 2011-04-07 02:54:12 +02:00
LICENSE Remove the legacy X11 screen grabber 2016-07-29 19:03:10 +02:00
Makefile build: Remove pkg-config files on clean instead of on distclean 2017-11-09 15:21:33 +01:00
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 2016-10-14 13:52:51 -04:00

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.