DirectShow

Check out the Event Notifications for DirectShow (in the SDK docs its in DirectShow->About DirectShow->Event Notification..)

When you reach the end of the file/stream, you''ll get an "End of Stream" event of some sort. At that point you can simply Seek back to the beginning and Run(). (using IMediaSeeking and IMediaControl)

To your second question, If you stop the graph with IMediaControl::Stop() you don''t have to RenderFile() again. Simply Run() it again and it will resume from the stopped''s location. Stop will not seek back to the beginning of the stream, you will have to do that manually. So stop sorta acts like a Pause function. If you want to know the difference between Pause() and Stop() in IMediaControl, check the SDK docs. They behave in similar ways, but pause keeps buffering data, while stop completly stops data flow.

Hope that helps..

thanks joshboudreau for the help!

well I found my self in trouble using ::SetPositions(...)
I tried using it like this

LONGLONG crPos;

pSeek->GetCurrentPosition(&crPos);

pSeek->SetPosition(&crPos,AM_SEEKING_AbsolutePositioning,
&llPos,AM_SEEKING_AbsolutePositioning);

I put 0 to llPos to make it seek to the beginning of segment (is it right?)

any help would be appreciated

thanks before

This is the way I do it:

LONGLONG pos = 0;
pSeeking->SetPositions(&pos, AM_SEEKING_AbsolutePositioning, NULL, AM_SEEKING_NoPositioning);
  

If you are still having trouble, maybe try looking at the HRESULT return values of the function calls, and post any errors you might get.

[edited by - joshboudreau on November 29, 2003 8:09:18 PM]