我试图定义一个单声道VideoFile / .NET对象，这样我可以叫

I'm trying to define a VideoFile in mono/.net object such that I can call

var file = new VideoFile(filepath);
file.VideoDuration 

有一个库（OS或商业），这将跨平台的单声道/ .NET，可以提供诸如VideoDuration工作。唯一的，虽然我已经对这个目前是包装ffmpeg.exe并宣读了控制台输出流。

Is there a library (os or commercial) which will work across platforms mono/.net which can provide information such as VideoDuration. The only though I have had on this currently is to wrap ffmpeg.exe and read the console out-stream.

推荐答案

的GStreamer 是不错的选择，它是一个跨平台的多媒体框架。而且有绑定，将满足您的需求：通过.NET API访问您所需要的信息（视频文件的长度）的 GStreamerSharp 。

GStreamer is good option, it's a cross platform multimedia framework. And there are bindings that would meet your needs: access the information you require (length of a video file) via a .NET API: GStreamerSharp.

事实上，我们实际使用它在女妖项目，媒体播放器写在C＃（这是默认的音乐播放器捆绑在Ubuntu） 。

Indeed, we actually use it in the Banshee Project, a media player written in C# (which is the default music player bundled in Ubuntu).

顺便说一句，GStreamer是架构的方式，codeCS的插件，所以你让他们（即ffmpeg）来哪些其他插件可能会根据您的许可/格式需要履行的内部之间的一个抽象。

BTW, GStreamer is architected in a way that codecs are plugins, so you have an abstraction between the internals of them (i.e. ffmpeg) which other plugins could fulfill depending on your licensing/format needs.