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I need to stream a video feed generated in real time using CamTwist and QuickTime Broadcaster on OS X.

The video is of a fairly static desktop, with some mouse movements, and occasional mild changes (e.g. switching tabs in a browser.) However, using CamTwist I'm overlaying in the corner a small feed of my webcam.

Which codec should yield the best results for streaming live video of such nature?

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I'd go with H.264, if not because that's what is most commonly used in Flash.

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