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Rémi Denis-Courmont c220a60f92 vdpau: add helper for surface chroma type and size Since the VDPAU pixel format does not distinguish between different VDPAU video surface chroma types, we need another way to pass this data to the application. Originally VDPAU in libavcodec only supported decoding to 8-bits YUV with 4:2:0 chroma sampling. Correspondingly, applications assumed that libavcodec expected VDP_CHROMA_TYPE_420 video surfaces for output. However some of the new HEVC profiles proposed for addition to VDPAU would require different depth and/or sampling: http://lists.freedesktop.org/archives/vdpau/2014-July/000167.html ...as would lossless AVC profiles: http://lists.freedesktop.org/archives/vdpau/2014-November/000241.html To preserve backward binary compatibility with existing applications, a new av_vdpau_bind_context() flag is introduced in a further change. Signed-off-by: Rémi Denis-Courmont <remi@remlab.net> Signed-off-by: Anton Khirnov <anton@khirnov.net>		10 years ago
compat	…
doc	vdpau: add helper for surface chroma type and size	10 years ago
libavcodec	vdpau: add helper for surface chroma type and size	10 years ago
libavdevice	xcbgrab: Move NULL check before pointer dereference	10 years ago
libavfilter	lavfi: always check av_expr_parse_and_eval() return value	10 years ago
libavformat	mpegts: add support for Opus	10 years ago
libavresample	avresample: Make sure the even check does not overflow	10 years ago
libavutil	check memory errors from av_strdup()	10 years ago
libswscale	swscale: Properly scale YUV	10 years ago
presets	…
tests	fate: add test for offset theora	10 years ago
tools	sidxindex: Write mimeType=audio/mp4 for audio-only representations	10 years ago
.gitattributes	Treat all '*.pnm' files as non-text file	10 years ago
.gitignore	…
COPYING.GPLv2	…
COPYING.GPLv3	…
COPYING.LGPLv2.1	…
COPYING.LGPLv3	…
CREDITS	…
Changelog	oggdec: add support for VP8 demuxing	10 years ago
INSTALL	…
LICENSE	…
Makefile	…
README	…
README.md	…
RELEASE	Make the RELEASE file match with the most recent tag	10 years ago
arch.mak	…
avconv.c	avconv: copy stream-level side data when streamcopying	10 years ago
avconv.h	…
avconv_dxva2.c	…
avconv_filter.c	avconv: fix leak in filter error	10 years ago
avconv_opt.c	check memory errors from av_strdup()	10 years ago
avconv_vda.c	…
avconv_vdpau.c	…
avplay.c	avplay: Use av_gettime_relative	10 years ago
avprobe.c	check memory errors from av_strdup()	10 years ago
cmdutils.c	check memory errors from av_strdup()	10 years ago
cmdutils.h	…
cmdutils_common_opts.h	…
common.mak	…
configure	libavformat: Only use MoveFileExA when targeting the desktop API subset	10 years ago
library.mak	…
version.sh	…

README.md

Libav

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.