多媒体处理工具 FFmpeg 0.8.4/0.7.5 发布
webphp 13年前
FFmpeg是一套可以用来记录、转换数字音频、视频，并能将其转化为流的开源计算机程序。它包括了目前领先的音/视频编码库libavcodec。 FFmpeg是在Linux下开发出来的，但它可以在包括Windows在内的大多数操作系统中编译。这个项目是由Fabrice Bellard发起的，现在由Michael Niedermayer主持。可以轻易地实现多种视频格式之间的相互转换，例如可以将摄录下的视频avi等转成现在视频网站所采用的flv格式。 <br /> <span style="font-weight:bold;">项目地址</span>： <a href="/misc/goto?guid=4958185627958900630" target="_blank">http://ffmpeg.org/</a> <br /> <br /> ffmpeg 同时发布了两个更新版本，分别是 0.8.4 和 0.7.5 ，这两个版本主要都是bug修复。而 0.8.4 版本兼容 0.6 的 ABI 和 API。 <h3>FFmpeg Download and Source Code Repository Access</h3> <h2>Getting FFmpeg</h2> <p>FFmpeg has always been a very experimental and developer-driven project. It is a key component in many multimedia projects and has new features added constantly. Development branch snapshots work really well 99% of the time so people are not afraid to use them.</p> <h2>FFmpeg Git</h2> <p>FFmpeg is developed with <a href="/misc/goto?guid=4958183577944756424">Git</a>. Given the decentralized nature of Git, multiple repositories from developers and groups of developers are available.</p> <p>You can retrieve the source code through the standard Git client by using the command:</p> <blockquote> <pre>git clone <i>CLONE_URL</i> ffmpeg</pre> </blockquote> <p>where <i>CLONE_URL</i> is one of the Git clone URLs listed in the table below.</p> <table id="repos" class="ke-zeroborder"> <thead> <tr> <th>Clone URL</th> <th>Browse</th> <th>Snapshot</th> <th>Admin</th> <th>Commiters</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><a href="/misc/goto?guid=4958192015485327083">git://git.videolan.org/ffmpeg.git</a></td> <td><a href="/misc/goto?guid=4958192016224181822">Browse</a></td> <td><a href="/misc/goto?guid=4958192016966979368">Snapshot</a></td> <td>Michael Niedermayer</td> <td>All FFmpeg developers</td> <td>Main FFmpeg / libavcodec / libavformat / libavfilter git repository, all work is merged in here, and it is the recommended repository for users and developers to use.</td> </tr> <tr> <td><a href="/misc/goto?guid=4958192017699232430">git://ffmpeg.org/ffmpeg-web</a></td> <td>-</td> <td>-</td> <td>Michael Niedermayer</td> <td>All FFmpeg developers</td> <td>Main ffmpeg.org website repository</td> </tr> <tr> <th colspan="6">Other Repositories</th> </tr> <tr> <td><a href="/misc/goto?guid=4958192018449018314">https://github.com/FFmpeg/FFmpeg</a> <br /> <a href="/misc/goto?guid=4958192019191231498">git://github.com/FFmpeg/FFmpeg.git</a></td> <td><a href="/misc/goto?guid=4958192018449018314">Browse</a></td> <td><a href="/misc/goto?guid=4958192020605763554">Snapshot</a></td> <td>-</td> <td>-</td> <td>Mirror of the main repository</td> </tr> <tr> <td><a href="/misc/goto?guid=4958192021332846884">git://git.libav.org/libav.git</a></td> <td><a href="/misc/goto?guid=4958192022068224367">Browse</a></td> <td><a href="/misc/goto?guid=4958192022813153708">Snapshot</a></td> <td>?</td> <td>8 developers</td> <td><br /> </td> </tr> <tr> <td><a href="/misc/goto?guid=4958192023550688202">git://gitorious.org/~astrange/ffmpeg/ffmpeg-mt.git</a></td> <td><a href="/misc/goto?guid=4958192024280872170">Browse</a></td> <td><a href="/misc/goto?guid=4958192025014239361">Snapshot</a></td> <td>Alexander Strange</td> <td>Alexander Strange</td> <td>Multithreaded decoding</td> </tr> <tr> <td><a href="/misc/goto?guid=4958192025750021923">git://git.khirnov.net/git/libav</a></td> <td><a href="/misc/goto?guid=4958192026494712145">Browse</a></td> <td>-</td> <td>Anton Khirnov</td> <td>Anton Khirnov</td> <td>Personal repository with works in progress</td> </tr> <tr> <td><a href="/misc/goto?guid=4958192027228017038">git://gitorious.org/~flameeyes/ffmpeg/flameeyes-ffmpeg.git</a></td> <td><a href="/misc/goto?guid=4958192027967517142">Browse</a></td> <td><a href="/misc/goto?guid=4958192028708324992">Snapshot</a></td> <td>Diego E. Pettenò</td> <td>Diego E. Pettenò</td> <td>Personal repository with works in progress</td> </tr> <tr> <td><a href="/misc/goto?guid=4958192029441188307">git://github.com/lu-zero/libav.git</a></td> <td><a href="/misc/goto?guid=4958192030186403562">Browse</a></td> <td><a href="/misc/goto?guid=4958192030940140280">Snapshot</a></td> <td>Luca Barbato</td> <td>Luca Barbato</td> <td>Personal repository with works in progress and experiments</td> </tr> <tr> <td><a href="/misc/goto?guid=4958192031687362294">git://git.mansr.com/libav.git</a></td> <td><a href="/misc/goto?guid=4958192032422359601">Browse</a></td> <td>-</td> <td>Mans Rullgard</td> <td>Mans Rullgard</td> <td>Personal repository with works in progress</td> </tr> <tr> <td><a href="/misc/goto?guid=4958192033152427307">git://github.com/justinruggles/Libav</a></td> <td><a href="/misc/goto?guid=4958192033895104458">Browse</a></td> <td>-</td> <td>Justin Ruggles</td> <td>Justin Ruggles</td> <td>Personal repository with works in progress</td> </tr> <tr> <td><a href="/misc/goto?guid=4958192034627875812">git@gitorious.org:~saste/ffmpeg/sastes-ffmpeg.git</a></td> <td><a href="/misc/goto?guid=4958192034627875812">Browse</a></td> <td>-</td> <td>Stefano Sabatini</td> <td>Stefano Sabatini</td> <td>Personal repository with works in progress</td> </tr> </tbody> </table> <h2>FFmpeg Repository Snapshots</h2> <p>For the main ffmpeg repository you can also directly download the<a href="/misc/goto?guid=4958192036050368605">source snapshot</a> that we generate each night instead of grabbing a source snapshot from the gitweb URL. This is slightly preferred since it reduces the load on our server.</p> <p>Alternatively, if you cannot access Git directly or wish to speed up the cloning and reduce the bandwidth usage, we also offer a complete<a href="/misc/goto?guid=4958192036789256040">git snapshot</a> tarball that comes with git metadata and version history to bootstrap your local repository.</p> <h2>FFmpeg Windows Builds </h2> <p>FFmpeg Windows Builds are available at<a href="/misc/goto?guid=4958192037528828156">http://ffmpeg.zeranoe.com/builds/</a> </p> <h2>FFmpeg SVN</h2> <p><b>FFmpeg development has moved to a Git repository, and the SVN repository is no longer updated. The last revision committed to SVN was r26402 on 2011-01-19. The SVN repository may be removed in a near future, so you're recommended to use the Git repository instead.</b></p> <p>In order to use the standard SVN client to check out the source code:</p> <blockquote> <pre>svn checkout <a href="/misc/goto?guid=4958192038269346794">svn://svn.ffmpeg.org/ffmpeg/trunk</a> ffmpeg</pre> </blockquote> <p>If you cannot access the repository, you are being firewalled somewhere. Our Subversion setup does <strong>not</strong> work over HTTP/HTTPS, nor will it in the future. There is no point in asking for it, the decision is final.</p> <a name="releases"></a> <h1>FFmpeg Releases</h1> <p>At irregular intervals FFmpeg makes releases that represent snapshots of FFmpeg at the moment the release branch was cut. Between major releases point releases will appear that add important bug fixes but no new features. Note that these releases are intended for distributors and system integrators. Users that wish to compile from source themselves are strongly encouraged to consider using the development branch (see above), this is the only version on which FFmpeg developers actively work. The release branches only cherry pick selected changes from the development branch, which therefore receives much more and much faster bug fixes such as additional features and security patches.</p> <a name="release_0.8"></a> <h2>FFmpeg 0.8.4 "Love"</h2> <p>0.8.4 was released on 2011-09-22. It is the latest stable FFmpeg release from the 0.8 release branch, which was cut from master on 2011-06-21. Amongst lots of other changes, it includes all changes from ffmpeg-mt, libav master of 2011-06-21, libav 0.7.1 as of 2011-09-21.</p> <p><a href="/misc/goto?guid=4958192039009054619">Download bzip2 tarball</a> <a href="/misc/goto?guid=4958192039734661152">PGP signature</a><br /> <a href="/misc/goto?guid=4958192040477671032">Download gzip tarball</a> <a href="/misc/goto?guid=4958192041211527022">PGP signature</a><br /> <a href="/misc/goto?guid=4958192041932955763">Changelog</a></p> <a name="release_0.7"></a> <h2>FFmpeg 0.7.5 "Peace"</h2> <p>0.7.5 was released on 2011-09-22. It contains almost all features and bugfixes of 0.8.4 while being compatible with the 0.6 ABI and API.</p> <p><a href="/misc/goto?guid=4958192042675867640">Download bzip2 tarball</a> <a href="/misc/goto?guid=4958192043406659813">PGP signature</a><br /> <a href="/misc/goto?guid=4958192044137787039">Download gzip tarball</a> <a href="/misc/goto?guid=4958192044875904096">PGP signature</a><br /> <a href="/misc/goto?guid=4958192045599607721">Changelog</a></p> <a name="release_0.6"></a> <h2>FFmpeg 0.6.3 "Works with HTML5"</h2> <p>0.6.3 appeared on 2011-04-26. It is the latest point release from the 0.6 release branch, which was cut on 2010-05-04.</p> <p><strong>This release is not actively maintained and thus we discourage its use.</strong> If you want to maintain this old version, contact us.</p> <a href="/misc/goto?guid=4958192046328509793">Download bzip2 tarball</a> <a href="/misc/goto?guid=4958192047061011822">PGP signature</a> <br /> <a href="/misc/goto?guid=4958192047790413532">Download gzip tarball</a> <a href="/misc/goto?guid=4958192048529886778">PGP signature</a> <br /> <a href="/misc/goto?guid=4958192049266239099">Changelog</a>