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FFmpeg git repo
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Martin Storsjö 847bf5988f movenc: Add an option for delaying writing the moov with empty_moov 
This delays writing the moov until the first fragment is written,
or can be flushed by the caller explicitly when wanted. If the first
sample in all streams is available at this point, we can write
a proper editlist at this point, allowing streams to start at
something else than dts=0. For AC3 and DNXHD, a packet is
needed in order to write the moov header properly.

This isn't added to the normal behaviour for empty_moov, since
the behaviour that ftyp+moov is written during avformat_write_header
would be changed. Callers that split the output stream into header+segments
(either by flushing manually, with the custom_frag flag set, or by
just differentiating between data written during avformat_write_header
and the rest) will need to be adjusted to take this option into use.

For handling streams that start at something else than dts=0, an
alternative would be to use different kinds of heuristics for
guessing the start dts (using AVCodecContext delay or has_b_frames
together with the frame rate), but this is not reliable and doesn't
necessarily work well with stream copy, and wouldn't work for getting
the right initialization data for AC3 or DNXHD either.

Signed-off-by: Martin Storsjö <martin@martin.st>
2015-01-03 01:19:27 +02:00
compat
doc vdpau: add helper for surface chroma type and size 2014-12-25 20:47:49 +01:00
libavcodec h264: restore a block mistakenly removed in e10fd08a 2014-12-27 10:44:48 +01:00
libavdevice xcbgrab: Move NULL check before pointer dereference 2014-12-18 23:27:14 +01:00
libavfilter lavfi: always check av_expr_parse_and_eval() return value 2014-12-18 23:27:14 +01:00
libavformat movenc: Add an option for delaying writing the moov with empty_moov 2015-01-03 01:19:27 +02:00
libavresample avresample: Make sure the even check does not overflow 2014-10-18 16:15:10 +01:00
libavutil check memory errors from av_strdup() 2014-12-18 23:27:14 +01:00
libswscale swscale: Properly scale YUV 2014-12-05 13:03:49 +00:00
presets
tests fate: Use bitexact conversions in the dpxparser test 2014-12-29 23:21:43 +02:00
tools sidxindex: Write mimeType=audio/mp4 for audio-only representations 2014-11-24 09:23:14 +02:00
.gitattributes Treat all '*.pnm' files as non-text file 2014-11-28 17:52:43 -05:00
.gitignore
arch.mak
avconv_dxva2.c
avconv_filter.c avconv: fix leak in filter error 2014-10-17 09:55:46 +01:00
avconv_opt.c check memory errors from av_strdup() 2014-12-18 23:27:14 +01:00
avconv_vda.c
avconv_vdpau.c avconv_vdpau: allocate video surface of VDPAU-specified size 2014-12-25 20:47:49 +01:00
avconv.c avconv: copy stream-level side data when streamcopying 2014-10-24 09:03:16 +02:00
avconv.h
avplay.c avplay: Use av_gettime_relative 2014-10-24 09:53:44 +03:00
avprobe.c check memory errors from av_strdup() 2014-12-18 23:27:14 +01:00
Changelog oggdec: add support for VP8 demuxing 2014-12-18 23:27:07 +01:00
cmdutils_common_opts.h
cmdutils.c check memory errors from av_strdup() 2014-12-18 23:27:14 +01:00
cmdutils.h
common.mak
configure libavformat: Only use MoveFileExA when targeting the desktop API subset 2014-12-19 23:24:47 +02:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
INSTALL
library.mak
LICENSE
Makefile
README
README.md
RELEASE Make the RELEASE file match with the most recent tag 2014-12-01 07:51:14 -05:00
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.