How to stream contents of a WPF form (as frames) to an AVI File?

I currently send a live video mix to a output screen (a form on a particular screen). Consider it like a really advanced version of PowerPoint. I call it a video control room for the pc. I want to take 30 frames a se开发者_Python百科cond from a screen (of my choice, I allow multiple screens) and the audio from the computer (stereo) set, save it to a hard disks. How do I do that?

I know I can draw the image of the interface using the RenderTargetBitmap class, but How do I put those images (as frames) in an AVI file or push it to a video server? An SDK? or a Code Example to point me in the right direction, would be nice! I also want to capture the sound of the current Stereo mix, or microphone (as determined by the user).

I don't want to use a third-party and I'd prefer doing it in the program to take maximum control over it. I'm ok, with using a second program to do compression and just saving a raw AVI file (with audio stream). Disk is cheap, as any programmer would say. If I have to, I'll save the video and audio streams separately, but I'd prefer not to.

Let me know.

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Check out the RenderTargetBitmap class. it allows you to turn any visual into pixels that you can then pass along to an encoder/network stack, like the ones described here

also check out Windows media foundation for turning your pixels into an avi or stream