软件概览
FFLib.NET 是 ffmpeg 的 .NET 封装库。可免费使用，源码需要付费（付费信息请看官方首页）。
示例代码如下：
主要特性：
- fully c# managed NET 2.0 library
- simple and easy to use object model
- properties for setting video and audio conversion parameters
- you can disable audio or video stream
- you can use fflib for audio conversion only
- single threaded at this time
- this is first alpha version
- source code available
- free for personal and commercial use
- available full support for developers
- free future updates for registered users