Cycling 74 » Topic: problem: jit.qt.movie not outputting frames when triggered http://cycling74.com/forums/topic/problem-jit-qt-movie-not-outputting-frames-when-triggered/feed Thu, 20 Jun 2013 04:27:18 +0000 http://bbpress.org/?v=2.2.4 http://cycling74.com/forums/topic/problem-jit-qt-movie-not-outputting-frames-when-triggered/#post-46467 <![CDATA[problem: jit.qt.movie not outputting frames when triggered]]> http://cycling74.com/forums/topic/problem-jit-qt-movie-not-outputting-frames-when-triggered/#post-46467 Sun, 15 Nov 2009 18:36:56 +0000 pseudostereo In this example patch, I want to load and immediately get the first 6 frames of a quicktime movie to distribute via jit.cycle. Everything works fine as long as I load the movie with a mouse click, but as soon as I introduce any delay (via objects such as pipe or delay), only the first frame of the movie loads. Why should there be any difference in the jitter objects’ behavior when they are triggered indirectly?

This example is a stripped-down patch from a big project which involves having a series of timed presets, each triggering the next after a set interval.

So this problem (bug, mistake, whatever) means that currently, every single preset needs to be triggered manually.

Help!

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]]> http://cycling74.com/forums/topic/problem-jit-qt-movie-not-outputting-frames-when-triggered/#post-167267 <![CDATA[Re: problem: jit.qt.movie not outputting frames when triggered]]> http://cycling74.com/forums/topic/problem-jit-qt-movie-not-outputting-frames-when-triggered/#post-167267 Sun, 15 Nov 2009 18:48:00 +0000 Rob Ramirez the problem is not easily explained, but fortunately there’s an article that should help clarify a bit.
http://www.cycling74.com/story/2005/5/2/133649/9742

the solution is quite simple. you should not be triggering any operations on the qt.movie until you’ve received a notification of a successful read.

i’ve modified your patch to illustrate.

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]]> http://cycling74.com/forums/topic/problem-jit-qt-movie-not-outputting-frames-when-triggered/#post-167268 <![CDATA[Re: problem: jit.qt.movie not outputting frames when triggered]]> http://cycling74.com/forums/topic/problem-jit-qt-movie-not-outputting-frames-when-triggered/#post-167268 Mon, 16 Nov 2009 21:54:05 +0000 pseudostereo thanks Rob for the lightning-fast response & the link to the illuminating article

at our user group meeting yesterday Andrew Pask showed me an alternative solution using the defer object – here’s a modified patch to illustrate:

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