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Luca Barbato 98afe3fb71 qsv: Make the hevc idr_interval consistent with the h264 one 
According to the MediaSDK documentation the idr_interval value has
a different meaning depending on the codec:

    0 in H264 means make every I-frame IDR, in HEVC it means to have
    it only at the beginning.

    1 in H264 means every other I-frame is not-IDR, in HEVC it means
    that every I-frame is IDR.

Keep the behaviour consistent between the two encoders by increasing
by 1 internally the idr_interval value for HEVC.
 		2017-10-18 11:55:44 +00:00
avbuild msvc: Properly specify dllexport for data symbols shared across dll boundaries 2017-08-31 14:22:06 +03:00
avtools avconv: when using -loop option bail out if seek to start fails 2017-07-28 13:13:44 +02:00
compat makedef: Add support for identifying the ARM64 machine type 2017-10-12 21:49:19 +03:00
doc Remove dv1394 input device 2017-10-13 23:57:59 +02:00
libavcodec qsv: Make the hevc idr_interval consistent with the h264 one 2017-10-18 11:55:44 +00:00
libavdevice Remove dv1394 input device 2017-10-13 23:57:59 +02:00
libavfilter qsv: Join the derived session to the parent 2017-09-27 12:27:34 +00:00
libavformat http: Reset compressed header flag when starting to read a request 2017-09-26 13:36:21 +03:00
libavresample Bump major versions of all libraries 2017-03-23 09:56:20 +01:00
libavutil aarch64: Get rid of a stray double space 2017-10-18 10:49:28 +03:00
libswscale build: Drop check for sys/mman.h in favor of mmap() check 2017-10-10 23:20:16 +02:00
presets
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tests cbs: Add test dependencies 2017-10-17 20:25:07 +01:00
tools aviocat: Check for output write errors 2017-09-04 09:42:52 +03:00
.gitattributes
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.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
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CREDITS
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Changelog libavfilter/overlay_qsv: Add QSV overlay vpp filter 2017-09-17 19:59:06 +02:00
INSTALL
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LICENSE
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Makefile build: Allow generating dependencies as a side-effect of assembling 2017-03-01 10:18:15 +01:00
README.md
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RELEASE Make the RELEASE file match with the most recent tag 2016-10-14 13:52:51 -04:00
configure configure: Set the default assembler to armasm64 for MSVC for arm64 2017-10-18 10:49:48 +03:00

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.