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Mark Thompson c6bc18bc12 vf_hwupload/hwmap: Support setting a fixed pool size 
These filters do not directly know whether the API they are using will
support dynamic frame pools, so this is somewhat tricky.  If the user
sets extra_hw_frames, we assume that they are aware of the problem and
set a fixed size based on that.  If not, most cases use dynamic sizing
just like they did previously.  The hardware-reverse-mapping case for
hwmap previously had a large fixed size (64) here, primarily as a hack
for QSV use - this is removed and extra_hw_frames will need to be set
for QSV to work since it requires fixed-size pools (as the other cases
do, and which didn't work before).
2018-02-11 22:11:10 +00:00
avbuild build: Add missing config.sh dependency for pkg-config files 2017-11-09 15:22:03 +01:00
avtools cmdutils: update copyright year to 2018 2018-01-01 02:51:51 -05:00
compat makedef: Pass EXTERN_PREFIX from configure to makedef 2017-11-16 16:54:08 +02:00
doc lavfi: Add support for increasing hardware frame pool sizes 2018-02-11 22:11:06 +00:00
libavcodec lavc: Add per-thread surfaces in get_hw_frame_parameters() 2018-02-11 22:00:48 +00:00
libavdevice Remove dv1394 input device 2017-10-13 23:57:59 +02:00
libavfilter vf_hwupload/hwmap: Support setting a fixed pool size 2018-02-11 22:11:10 +00:00
libavformat Drop some unnecessary config.h #includes 2018-02-06 10:03:15 +01:00
libavresample Bump major versions of all libraries 2017-03-23 09:56:20 +01:00
libavutil Drop some unnecessary config.h #includes 2018-02-06 10:03:15 +01:00
libswscale build: Drop check for sys/mman.h in favor of mmap() check 2017-10-10 23:20:16 +02:00
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tests checkasm: Use LOCAL_ALIGNED for aligned variables on the stack 2017-12-12 11:36:38 +02:00
tools aviocat: Check for output write errors 2017-09-04 09:42:52 +03:00
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Changelog libavfilter/overlay_qsv: Add QSV overlay vpp filter 2017-09-17 19:59:06 +02:00
configure configure: Factorize check_64_bit() 2018-02-06 11:13:19 +01:00
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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.