Severe Video Frame Rate Stutter after Upgrade to Qlab 3
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davey_t
Sep 9, 2014, 2:37:21 PM9/9/14
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Hi Team,
I'm going into tech tomorrow for a play, and having playback stutter issues with things like cross fading two photos, or using video effects smoothly in QLab 3. I had seen QLab work more smoothly on other machines running Mavericks previously. Now on my two machines, after having used Qlab 2 for years in the past I'm finding issues where I hadn't had before. After upgrading to Mavericks so that I could use Qlab 3, I'm finding that using video effects (like color controls) is slowing rate considerably more than an QLab 2 Quartz patch had. I can even play the same videos using the equivalent VLC built in video effects with seamless playback, but when played-back with effects in QLab it is significantly more stuttered.
I'm also getting choppy playback when cross fading two PNG photos, worse than what I had experienced using QLab 2. For video content, I'm playing Pro Res 422 files, and have h264 renders too. In all codecs, when adding a QLab effect like brightness, playback choppiness seems to cut framerate in half or worse.
I'm running a mid 2009 MacBook Pro w/ 8Gb RAM, 2.4Ghz Core 2 Duo, recently upgraded to Mavericks. And a Mac Mini Late 2012, 4Gb RAM, 2.5Ghz Core i5, also Mavericks. In watching the Activity Monitor app during playback, the only significant CPU draws are QLab and VTDecorderXPCService.
The plackback on the MacBook Pro is much worse with effects.
Any thoughts or suggestions?
If I delete and reinstall QLab, will my license re-activate it?
Any tips on tuning up my machines?
I realize there are so many factors to consider, but the change became noticeable after moving from QLab 2 to 3.
thank you much!
~ davey
I'm going into tech tomorrow for a play, and having playback stutter issues with things like cross fading two photos, or using video effects smoothly in QLab 3. I had seen QLab work more smoothly on other machines running Mavericks previously. Now on my two machines, after having used Qlab 2 for years in the past I'm finding issues where I hadn't had before. After upgrading to Mavericks so that I could use Qlab 3, I'm finding that using video effects (like color controls) is slowing rate considerably more than an QLab 2 Quartz patch had. I can even play the same videos using the equivalent VLC built in video effects with seamless playback, but when played-back with effects in QLab it is significantly more stuttered.
I'm also getting choppy playback when cross fading two PNG photos, worse than what I had experienced using QLab 2. For video content, I'm playing Pro Res 422 files, and have h264 renders too. In all codecs, when adding a QLab effect like brightness, playback choppiness seems to cut framerate in half or worse.
I'm running a mid 2009 MacBook Pro w/ 8Gb RAM, 2.4Ghz Core 2 Duo, recently upgraded to Mavericks. And a Mac Mini Late 2012, 4Gb RAM, 2.5Ghz Core i5, also Mavericks. In watching the Activity Monitor app during playback, the only significant CPU draws are QLab and VTDecorderXPCService.
The plackback on the MacBook Pro is much worse with effects.
Any thoughts or suggestions?
If I delete and reinstall QLab, will my license re-activate it?
Any tips on tuning up my machines?
I realize there are so many factors to consider, but the change became noticeable after moving from QLab 2 to 3.
thank you much!
~ davey
Dave "luckydave" Memory
Sep 9, 2014, 2:39:16 PM9/9/14
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On Tuesday, September 9, 2014 at 11:37 AM, davey_t wrote:
Hi Team,
I'm going into tech tomorrow for a play, and having playback stutter issues
This sounds like an issue we've found with Mavericks, which we're still waiting on Apple to fix. Write to us at sup...@figure53.com, and we'll get you the workaround.
--
micpool
Sep 9, 2014, 6:21:27 PM9/9/14
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A suggestion
2 buttons on the settings general screen
One enables the mavericks fix.
One disables it.
Mic
Christopher Ashworth
Sep 9, 2014, 6:41:24 PM9/9/14
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Or, as per recent discussions we've had: can we auto detect it and enable when necessary? (And log that it happened)
(mobile)
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