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Derek Buitenhuis 5e3f6dc701 swscale: Do not expand a macro with 'defined' in it 
Fixes:

    libswscale/utils.c:1632:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined]
    #if USE_MMAP
        ^
    libswscale/utils.c:1577:49: note: expanded from macro 'USE_MMAP'
    #define USE_MMAP (HAVE_MMAP && HAVE_MPROTECT && defined MAP_ANONYMOUS)
                                                    ^
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2017-08-28 10:26:14 +02:00
avbuild build: Add an option for passing linker flags to the shared library build 2017-06-22 13:54:34 +02:00
avtools avconv: when using -loop option bail out if seek to start fails 2017-07-28 13:13:44 +02:00
compat compat/atomics: add typecasts in atomic_compare_exchange_strong() 2016-12-08 15:53:58 -05:00
doc lavc: Add mpeg2_metadata bitstream filter 2017-08-20 15:14:33 +01:00
libavcodec png: Support RGBA64 pixel format 2017-08-21 09:23:44 +02:00
libavdevice avfoundation: update to use AVCodecParameters 2017-04-26 11:47:31 -04:00
libavfilter yadif: Account for the buffer alignment while processing the frame edges 2017-08-22 22:31:19 +02:00
libavformat hevc: Improve stream constraint values in common header 2017-08-05 23:54:35 +01:00
libavresample Bump major versions of all libraries 2017-03-23 09:56:20 +01:00
libavutil aarch64: Fix negative movrel offsets for windows 2017-08-22 13:41:08 +03:00
libswscale swscale: Do not expand a macro with 'defined' in it 2017-08-28 10:26:14 +02:00
presets
tests mpeg2enc: Don't mark all streams as component video 2017-08-20 15:14:37 +01:00
tools build: Move entries related to building TOOLS to a subdirectory Makefile 2016-12-07 11:02:31 +01:00
.gitattributes
.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 hevcdec: add a CUVID hwaccel 2017-07-28 14:12:56 +02:00
configure configure: Include d3d11va_extralibs in libavutil 2017-08-25 09:22:42 +03:00
COPYING.GPLv2
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INSTALL
LICENSE Remove the legacy X11 screen grabber 2016-07-29 19:03:10 +02:00
Makefile build: Allow generating dependencies as a side-effect of assembling 2017-03-01 10:18:15 +01:00
README.md
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.