如何在C＃（通用Windows应用）中以编程方式获取视频时长/时长？

Question

I've searched about this for a while, and most answers seem to suggest using the directshow library, which I've tried, but it didn't work. My program currently works on selecting a video file using the FileOpenPicker, then checks its length and uploads it to the cloud if it's below a certain length. Please keep in mind that this needs to work for Universal Windows Apps.

Answer 1

You can use DirectShow API MediaDet object, through DirectShow.NET wrapper library. See Getting length of video for code sample, get_StreamLength gets you the duration in seconds. This assumes Windows has MPEG-4 demultiplexer installed (requires third party components with Windows prior to 7, I believe the same applies to another answer by cezor , there are free to redistribute components though).You can use DirectShow API MediaDet object, through DirectShow.NET wrapper library. See Getting length of video for code sample, get_StreamLength gets you the duration in seconds. This assumes Windows has MPEG-4 demultiplexer installed (requires third party components with Windows prior to 7, I believe the same applies to another answer by cezor , there are free to redistribute components though).