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best codec for pure video noise

category: general [glöplog]
actually, i tried the traditional "large noise image, and move it really fast or rotate it" method, and decided it wasn't high enough quality, so I'm generating a full screen of noise per frame. Then again, i also wrote a fairly realistic ghosting shader, plus another to distort the hsync depending on what's at the edge of the screen, so I'm probably being way too picky :)

For the video format: well, the screensaver runs at 480 pixels vertically, horizontal depends on the monitor aspect ratio (so it'll increase the horizontal res for a wide screen instead of stretching).

640x480 will do for capture, or 320x240 if that's still pushing the codec too hard. Is there any benefit to rendering at 320x240 and upscaling before compressing? I know that can help with quality in some cases, but I can't remember which cases..

Oh, and if I can get away with a straight video, I'll use quicktime rather than flash. Since it's a mac program, and macs all have quicktime installed, a plain .mp4/h264 file is guaranteed to work, so there's not really any benefit to flash.
added on the 2008-12-20 02:49:22 by psonice psonice
Just in case: http://www.neave.com/webcam/ with sourcecode.
added on the 2008-12-20 17:51:41 by bdk bdk


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