Installing Libavcodec Windows
At semi-regular intervals, Libav makes releases that represent snapshots of Libavat the moment the release branch was cut. Between major releases, point releaseswill appear that add only bug fixes but no new features.
Libav 12 'Not Enough Trocadero'
12.3 was released on 2018-02-12.It is the latest point release from the 12release series.
12 was published 2016-10-18,the 12 branch was cut 2016-10-02.
Please give us feedback and useour Bugzilla for filing bugs.
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Libav 11 'One Louder'
11.12 was released on 2018-02-04.It is the latest point release from the 11release series.
11 was published 2014-12-03,the 11 branch was cut 2013-08-20.
Please give us feedback and useour Bugzilla for filing bugs.
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Libav 9 'Plain 9'
9.21 was released on 2017-01-15.It is the latest point release from the 9release series.
9 was published 2013-01-05,the 9 branch was cut 2013-01-05.
Please give us feedback and useour Bugzilla for filing bugs.
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Libav 0.8 'Forbidden Fruit'
0.8.21 was released on 2017-10-13.It is the latest point release from the 0.8release series.
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0.8 was published 2013-01-21,the 0.8 branch was cut 2012-01-21.
Please give us feedback and useour Bugzilla for filing bugs.
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Libav Git
Libav is developed with Git.Given the decentralized nature of Git, multiple repositories fromdevelopers and groups of developers are available.
| Clone URL | Browse URL | Maintainer | Description | |
|---|---|---|---|---|
| git://git.libav.org/libav.git | git.libav.org/?p=libav.git | Libav team | Main development | |
| git://git.libav.org/libav.org.git | git.libav.org/?p=libav.org.git | Libav team | Website module | |
| Mirrors | ||||
| https://code.videolan.org/libav/libav.git | https://code.videolan.org/libav/libav | Libav team | Videolan Mirror | |
| git://github.com/libav/libav.git | https://github.com/libav/libav | Libav team | GitHub Mirror | |
| https://gitlab.com/libav/libav.git | https://gitlab.com/libav/libav | Libav team | GitLab Mirror | |
| Developer Trees | ||||
| git://github.com/lu-zero/libav.git | https://github.com/lu-zero/libav | Luca Barbato | Personal repository with works in progress and experiments | |
| git://git.khirnov.net/git/libav | - | Anton Khirnov | Personal repository with works in progress | |
Marvel ultimate alliance wii rom. You can retrieve the source code through the standard Git client byusing the command:
where CLONE_URL is one of the Git clone URLs listed in thetable above.
Make sure that you do not have Windows line endings in your checkouts,otherwise you may experience spurious compilation failures. One way toachieve this is to run
git.libav.org Repository Snapshots
For the git.libav.org repository you can also directly download thesource snapshotthat we generate each night instead of grabbing a source snapshotfrom the gitweb URL. This is slightly preferred since it reducesthe load on our server.
Alternatively, if you cannot access Git directly or wish to speed upthe cloning and reduce the bandwidth usage, we also offer a completegit snapshottarball that comes with git metadata and version history tobootstrap your local libav.org repository.
Nightly and release builds of Libav linked with various libraries aredone for 32-bit and 64-bit Windows, and can be obtained at the followingURLs:
Windows builds of official releases
32-bit Windows builds
32-bit Windows builds using pthreads
64-bit Windows builds
Please report any bugs to the bug tracker.
This table is sorted alphabetically. Please help to keep it up-to-date.
| Distribution | Package Information URL | Version Tracked |
|---|---|---|
| Debian | https://packages.qa.debian.org/liba/libav.html | Release Branches |
| Gentoo | https://packages.gentoo.org/package/media-video/libav | Release Branches, git master |
| Ubuntu | https://launchpad.net/ubuntu/+source/libav | Release Branches |
| OpenEmbedded | http://git.openembedded.org/openembedded-core/tree/meta/recipes-multimedia/libav | git master |
| Developer(s) | FFmpeg team |
|---|---|
| Stable release | 58.35.100 (included in FFmpeg 4.1)[1](November 6, 2018; 6 months ago)[±] |
| Preview release | Git[±] |
| Repository | |
| Written in | C99 |
| Operating system | Available for Windows, OS X, Linux but may be compiled for any other OS[2] |
| Platform | Available for x86 but may be compiled for any desktop computer or supercomputer |
| Type | Multimedia Library |
| License | GNU LGPL 2.1+ or GNU GPL 2+ or non-redistributable if compiled as such[3] |
| Website | ffmpeg.org |
libavcodec is a free and open-source[4] library of codecs for encoding and decoding video and audio data.[5]
libavcodec is an integral part of many open-source multimedia applications and frameworks. The popular MPlayer, xine and VLC media players use it as their main, built-in decoding engine that enables playback of many audio and video formats on all supported platforms. It is also used by the ffdshow tryouts decoder as its primary decoding library. libavcodec is also used in video editing and transcoding applications like Avidemux, MEncoder or Kdenlive for both decoding and encoding.
libavcodec contains decoder and sometimes encoder implementations of several proprietary formats, including ones for which no public specification has been released. As such, a significant reverse engineering effort is part of libavcodec development. Having such codecs available within the standard libavcodec framework gives a number of benefits over using the original codecs, most notably increased portability, and in some cases also better performance, since libavcodec contains a standard library of highly optimized implementations of common building blocks, such as DCT and color space conversion. However, while libavcodec does strive to achieve decoding that is bit-exact to their official format implementations, occasional bugs and missing features in such re-implementations can sometimes introduce playback compatibility problems for certain files.
- 5Applications using libavcodec
Implemented video codecs[edit]
libavcodec includes video decoders and/or encoders for the following formats:[6]
|
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Implemented audio codecs[edit]
libavcodec includes decoders and encoders for the following formats:[7]
|
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Legal aspects[edit]
Libavcodec contains more than 100 codecs,[8] most of which do not just store uncompressed data. Most codecs that compress information could be claimed by patent holders.[9] Such claims may be enforceable in countries like the United States which have implemented software patents, but are considered unenforceable or void in countries that have not implemented software patents.
Furthermore, many of these codecs are only released under terms that forbid reverse engineering, even for purposes of interoperability. These terms of use are forbidden in certain countries. For example, some European Union nations have not implemented software patents and have laws expressly allowing reverse engineering for purposes of interoperability.[10]
Libraries that depend on libavcodec[edit]
- libavformat (part of FFmpeg)
- libgegl (optional part of GEGL)
- libgimp (part of GIMP)
- libmpcodecs (part of MPlayer)
- libmpdemux (part of MPlayer)
Applications using libavcodec[edit]
Video players[edit]
Audio players[edit]
- Audacious (Uses in audacious-plugins's ffaudio)
- Rockbox (Includes only FLAC code)
Multimedia players[edit]
Video editors[edit]
See also Comparison of video editing software
Audio editors[edit]
- Audacity (since 1.3.6)
- SoX (optional)
Video converters[edit]
Video libraries[edit]
Optical disc authoring[edit]
Graphic libraries[edit]
3D graphics editors[edit]
- Blender[11]
VoIP[edit]
Multimedia Streaming Server[edit]
Multimedia frameworks[edit]
- ffdshow (wraps libavcodec as a DirectShow filter and adds postprocessing to improve image quality; once installed, it is automatically used by all Windows DirectShow video players, such as Windows Media Player, Media Player Classic, Winamp etc. It also wraps libavcodec as a Video for Windows filter; the framework used by most video editing software.)
- GStreamer via the GStreamer FFmpeg plugin
- Bellagio OpenMAX Integration Layer – open-source OpenMAX IL API implementation
Computer vision libraries[edit]
- OpenCV[12]
Browser[edit]
- Google Chrome[13]
Media Center[edit]
Screen Capture[edit]
- xvidcap[14]
Device utilities[edit]
- BitPim – utilities for CDMA phones
CCTV[edit]
- ZoneMinder – video camera security suite
- Motion – video camera security/monitoring program
Game[edit]
- Performous – music game including singing, band and dance.
Others[edit]
- Ingex Studio – used by BBC
- PulseAudio – includes only resamplers code[15]
References[edit]
- ^[1]
- ^'Download'. ffmpeg.org. FFmpeg. Retrieved 2012-01-04.
- ^libavcodec can be configured to make it a proprietary and non-redistributable library since some optional external libraries are proprietary software and cannot be distributed under the terms of the GPL (e.g. Decklink).
- ^Libav License and Legal Considerations, libav.org, retrieved 2013-05-07
- ^libavcodec – AfterDawn: Glossary of technology terms & acronyms, AfterDawn, 2010-07-02, retrieved 2012-01-17
- ^General Documentation, Ffmpeg.org, retrieved 2012-01-17
- ^General Documentation, Ffmpeg.org, retrieved 2012-01-17
- ^'Codecs list'. ffmpeg.org. Retrieved 2012-01-01.
- ^'Legal information on FFmpeg's website'. ffmpeg.org. Retrieved 2012-01-04.
- ^Council Directive 91/250/EEC of 14 May 1991 on the legal protection of computer programs
- ^Blender for Dummies, Books.google.com, p. 320, retrieved 2012-01-17
- ^Learning OpenCV: computer vision with the OpenCV library, Books.google.com, 2008-09-24, p. 9, retrieved 2012-01-17
- ^whatwg MPEG-1 subset proposal for HTML5 video codec, Lists.whatwg.org, archived from the original on 2012-02-19, retrieved 2012-01-17
- ^Open Source Development, Communities and Quality: IFIP 20th World Computer, Books.google.com, p. 167, retrieved 2012-01-17
- ^pulseaudio.git/tree – src/pulsecore/ffmpeg/, Git.0pointer.de, retrieved 2012-01-17[permanent dead link]
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