Sorry about double posting. I posted a reply in another thread
when I really should have opened a new thread.
I understand how to connect a preview graph for the device, and was able to do it in GraphEdit. My problem is I can not set appropriate parameters programmatcally for the Demultiplexer filter. I am trying to make the audio pin AC3 and the video pin H264. However, when I try to map the stream IDs 0x1100 and 0x1011 to the pins, I get an "invalid argument" error. I think I must have specified some parameters wrong.
Can some one give me some pointers? Many thanks.