C＃DirectX音频/视频播放“ VFW_E_UNSUPPORTED_STREAM”

Question

I am trying to create a video player for MP4's with DirectX and it works on my computer but I tried my application on a netbook and this error code pops up in a try{...}catch(Exception e){...} .

Error in the application.
-2147220891 (VFW_E_UNSUPPORTED_STREAM)
   at Microsoft.DirectX.AudioVideoPlayback.Video.Open(String fileName, Boolean autoRun)
   at Microsoft.DirectX.AudioVideoPlayback.Video..ctor(String fileName, Boolean autoRun)
   at Video_Player.Player.PeekWind_Load(Object sender, EventArgs e)

This is some of my code.

Microsoft.DirectX.AudioVideoPlayback.Video video = new Microsoft.DirectX.AudioVideoPlayback.Video("C:\TestVideo.mp4", true);
video.Owner = ViewPane;
video.Size = new Size(Video.DefaultSize.Width, Video.DefaultSize.Height);
video.Audio.Volume = -2500;
video.Play();

Thank you for any help given.

Answer 1

VFW_E_UNSUPPORTED_STREAM is an error code returned by underlying DirectShow layer , which indicates that it was unable to build playback pipeline. Which in turn means that some stream or format whatsoever could not be recognized and is typically missing a codec/filter component to read the data into decoded and presentation-ready state.

As you mention MP4, you presumably need a third party filter/codec installed since stock Windows does not offer a component for this within DirectShow API ( GDCL filters should fix this in Windows 7+ and in older systems you also typically need a third party H.264 decoder in addition).