PFPHASE_LOCK

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Simon Gibbs (simon++at++viswiz.gmd.de)
Tue, 29 Nov 94 7:21:48 MET

Next message: Mark Visconti: "Timing between Application and Draw process"
Previous message: Kim Michael Fairchild: "Performer GUI"

We have a RE 2 with a Sirius board and want to generate
frames at 50 Hz. The system is set up as follows:
        - setmon -x 1280x1024_50f
        - a very stable video sync source is attached to
          both the RE 2 framebuffer genlock and the Sirius genlock
        - our program calls:
                pfPhase(PFPHASE_LOCK);
                pfFrameRate(50.0f);

However when the program starts we get the message...

Performer Notice: Using xxHz video rate on screen 0

The problem is that xx is not 50 but, somewhat randomly, one
of 49, 49.5 or 50.

Are we doing something wrong?

Simon Gibbs
GMD

Next message: Mark Visconti: "Timing between Application and Draw process"
Previous message: Kim Michael Fairchild: "Performer GUI"

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