This is at 12.7 fps, the maximum I can get.
Horizontal tearing
Delay
Neither of these occur on RemoteCapture, hence my inquiry.
Phase II compatibility testing on the instrumentation computer has begunThis is at 12.7 fps, the maximum I can get.Q1. Horizontal tearing?
Another artifact you may see is tearing. The CHDK live view is not synchronized with display refresh, so with moving subjects may appear to tear.
There seems to be a delay from beginning of subject motion that is longer than 1 frame, perhaps 2 or 3 frames. In other words, motion seems to be delayed by a few frames. Is this true?
Any way to mitigate?
Changing lighting doesn't affect fps on the S90 // it stays the same dark or light. This machine is USB 2.0. On a USB 1.0 I get a max of 1 fps with S90, 3 fps with SX110.
Could my 13 fps limitation be tied to 640x480 transfer on the S90 ??
S90. Something useful to add to my last post ... now that I am testing different aspects of the new hardware on the instrumentation machine, I see that changing ISO and changing Tv *does* change the fps ... higher ISO or longer Tv, lower fps.
Nonetheless, can you try vid_get_viewport_live_fb for nice clean undistorted motion anyway? I'll test it out here.
because CHDKPTP's own frame rate does not change
If I turn off UI overlay, I still see tearing but it is not as severe.
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