FFmpeg 简介

 

   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 0.10 发布，这是一个主要的发行版本，包含大量的新特性和bug修复，修复了：CVE-2011-3929, CVE-2011-3934, CVE-2011-3935, CVE-2011-3936, CVE-2011-3937, CVE-2011-3940, CVE-2011-3941, CVE-2011-3944, CVE-2011-3945, CVE-2011-3946, CVE-2011-3947, CVE-2011-3949, CVE-2011-3950, CVE-2011-3951, and CVE-2011-3952.

0.10 was released on 2012-01-26. It is the latest stable FFmpeg release from the 0.10 release branch, which was cut from master on 2012-01-26. Amongst lots of other changes, it includes all changes from ffmpeg-mt, libav master of 2012-01-26, libav 0.8 as of 2012-01-26.

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。

FFmpeg是一个开源免费跨平台的视频和音频流方案，属于自由软件，采用LGPL或GPL许可证（依据你选择的组件）。它提供了录制、转换以及流化音视频的完整解决方案。它包含了非常先进的音频/视频编解码库libavcodec，为了保证高可移植性和编解码质量，libavcodec里很多codec都是从头开发的。

FFmpeg在Linux平台下开发，但它同样也可以在其它操作系统环境中编译运行，包括Windows、Mac OS X等。

这个项目最早由Fabrice Bellard发起，现在由Michael Niedermayer维护。许多FFmpeg的开发人员都来自MPlayer项目，而且当前FFmpeg也是放在MPlayer项目组的服务器上。

FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. It supports the most obscure ancient formats up to the cutting edge. No matter if they where designed by some standards committee, the community or a corporation. It contains libavcodec, libavutil, libavformat, libavdevice, libswscale and libswresample which can be used by applications. As well as ffmpeg, ffserver, ffplay and ffprobe which can be used by end users for transcoding, streaming and playing

The FFmpeg project tries to provide the best technically possible solution for developers of applications and end users alike. To achieve this we combine the best free software options available. We slightly favor our own code to keep the dependencies on other libs low and to maximize code sharing between parts of FFmpeg. Wherever the question of "best" cannot be answered we support both options so the end user can choose.

Security is a high priority and code review is always done with security in mind. Though due to the very large amounts of code touching untrusted data security issues are unavoidable and thus we provide as quick as possible updates to our last stable releases when new security issues are found.