[FFmpeg-user] Correct way to get preview stream with no encoding?

[Jason Runta]

I'm trying to make a program that behaves similar to FMLE where I need to
display a preview of the video from my webcam as well as a preview of the
encoded output.

I was wondering if anyone could suggest the proper way of getting a preview
stream without any encoding being done to it.

Do I need to make one ffmpeg call that uses -vcodec copy -acodec copy and
then redirect  the output from that into subsequent ffmpeg calls?

If anyone has a good idea of how to get the preview stream into a C# app
I'm all ears as well =) I'm pretty sure FMLE basically runs on top of
ffmpeg so if they're doing it, I should be able to do it...

-- 
*-_-=Jason Runta=-_-*