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This is the same adjustment that the mp4 muxer does to the start timestamp of fragments, since the timestamp of a sample in an mp4 file is implicit from the sum of earlier sample durations. This avoids gaps in the timeline (which can stop dash.js from playing it back), and makes sure the timestamp on the segmenter level matches what the mp4 muxer actually writes into the segments. This is only an issue if the AVPacket duration of the last packet of a segment doesn't point to the actual start timestamp of the next packet (the first in the next segment). Signed-off-by: Martin Storsjö <martin@martin.st> |
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compat | ||
doc | ||
libavcodec | ||
libavdevice | ||
libavfilter | ||
libavformat | ||
libavresample | ||
libavutil | ||
libswscale | ||
presets | ||
tests | ||
tools | ||
.gitattributes | ||
.gitignore | ||
arch.mak | ||
avconv_dxva2.c | ||
avconv_filter.c | ||
avconv_opt.c | ||
avconv_vda.c | ||
avconv_vdpau.c | ||
avconv.c | ||
avconv.h | ||
avplay.c | ||
avprobe.c | ||
Changelog | ||
cmdutils_common_opts.h | ||
cmdutils.c | ||
cmdutils.h | ||
common.mak | ||
configure | ||
COPYING.GPLv2 | ||
COPYING.GPLv3 | ||
COPYING.LGPLv2.1 | ||
COPYING.LGPLv3 | ||
CREDITS | ||
INSTALL | ||
library.mak | ||
LICENSE | ||
Makefile | ||
README | ||
README.md | ||
RELEASE | ||
version.sh |
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
andqt-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.