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sync quicktime playback over multiple computers
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sync quicktime playback over multiple computers


  • Subject: sync quicktime playback over multiple computers
  • From: Richard Salvatierra <email@hidden>
  • Date: Tue, 27 Sep 2005 13:47:41 -0400

I have an app that simply plays quicktime movies from a playlist.
I can also control different machines running the same app over ethernet using a Master/Slave mode. I have the "play" command
executing and (in this example) my 3 machines play and loop the same file at the same instant.
There is of course some latency because of the ethernet connection but in a closed network environment the difference is not visually apparent.


The movie files play and loop in sync but over the course of an hour or two, they become out of sync. The videos are a few frames off. This discrepancy increases over time.

Does this have anything to do with:
SetTimeBaseFlags(GetMovieTimeBase(myMovie), loopTimeBase);
Possibly each machine does not loop at the same exact time?

- I thought this would correct the problem but seems to have no effect -
TimeBase selfTimeBase = GetMovieTimeBase(myMovie);
SetTimeBaseMasterTimeBase(selfTimeBase, masterTimeBase, nil);


Any other suggestions would be greatly appreciated. -Rich _______________________________________________ Do not post admin requests to the list. They will be ignored. Cocoa-dev mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden
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