Read in stream from Intensity Pro capture card.

[William Metcalf]

I am trying to write a pipeline that will read in a stream from my 
Intensity Pro capture card and encode the audio/video into an .mp4 
file.  I do not think that the encoding part should be too difficult, 
however, I do not know how to read in the stream from the capture card.

I am programming this pipeline on windows.

I figure that I can use dshowvideosrc and dshowaudiosrc to get the video 
and audio (the website says that the capture card support DirectShow 
applications) but I have been unsuccessful so far.

My current pipeline trying to get the video from the card is:

dshowvideosrc ! ffmpegcolorspace ! ffenc_mpeg4 ! qtmux ! filesink 
location="myvideo.mp4"

This returns an error that dshowvideosrc couldn't be linked with 
ffmpegcolorspace.

Any help in getting to read video and audio from the capture cards will 
be greatly appreciated.