Question

I am using DirectShow.Net in C#. I made a player that will stream video from a usb device to a video screen and to an avi file at the same time.

I want to have a button so the video will preview on the screen but not capture until a button is pressed. currently to do this, i have to redo the graph and add in the capture filter renderstream.

is it possible to create 2 different graphs off of 1 input? so I would have my usb camera that is displaying to a video window and then when i press a button i can create a second graph that will save the video from the camera to a file while its still playing on screen?

Answer 1

As mentioned by @Geraint, you can use GMFBridge with DirectShow.Net. DirectShow.Net website states:

Samples\Misc\GMFPreview
———————–
A sample showing how to use Geraint’s
indispensible GMFBridge tool to allow
part of a graph to be stopped while
another part keeps running. This is
useful to allow preview windows to
keep running while you start/stop
capturing to disk.