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Re: Builtin iSight's presentationTime runs too fast?




On Jun 11, 2008, at 2:12 AM, Jonathan del Strother wrote:

On Wed, Jun 11, 2008 at 5:11 AM, Jaime Magiera
<email@hidden> wrote:

On Jun 6, 2008, at 3:45 PM, Jonathan del Strother wrote:\

I'm still struggling with this. A reboot seems to fix the problem, at
least until it decides to pop up again.
No ideas, anyone?

Hi Jon,

Sorry for not seeing this earlier, super busy...

I have had the same problem when capturing from my internal isight. I've
filed a bug and have been requested to provide a code example. Regrettably,
I have not had time to write a standalone class to duplicate the problem.
I'm hoping to do that this coming weekend and submit the code to my bug
report.


File a bug. If we have the same problem, Apple will mark them it as
duplicate.

Jaime Magiera

Sensory Research
http://www.sensoryresearch.net



Hm, interesting. As of yet, I haven't found any reliable way of reproducing this - it's fine until it's not, at which point it's broken for several runs, at which point I usually give up and restart, but I have seen it magically fix itself at least once. I haven't been able to see any pattern in its behaviour - how about you?

I filed a similar bug in October. It included sample code too. It has been closed as apple said they could not reproduce it.
I don't have easy access to the iMac that I first reported the bug using so it was pretty hard for me to continue checking to see if the bug still exists or not. It only occurred on the new iMacs and the recorded video would play back almost twice as fast. So if I recorded for 10 seconds it would play back in approximately 5. If I can get ahold of the code I'll send it to both of you to try out. I just altered QTRecorder to make it exhibit the problem if I remember correctly.


rdar://problem/5572546


todd


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References: 
 >Builtin iSight's presentationTime runs too fast? (From: "Jonathan del Strother" <email@hidden>)
 >Re: Builtin iSight's presentationTime runs too fast? (From: "Jonathan del Strother" <email@hidden>)
 >Re: Builtin iSight's presentationTime runs too fast? (From: Jaime Magiera <email@hidden>)
 >Re: Builtin iSight's presentationTime runs too fast? (From: "Jonathan del Strother" <email@hidden>)



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