Re: [QLab] Devamp Video Loop

[Lucas Krech]

QLab doesn't currently do that.  If your loop is such that you don't need the devamp to be seamless you can just play out another video clip fading over the loop. But that's the best you can do.

There might be a Quartz Patch solution by running your video through a patch set to asynchronous mode and resetting the loop point/triggering the full clip with an animation cue. You would probably need two instances of the movie in the patch with the movie position of the loop inputting the selection start on the released version. Then hijack rotation in an animation cue to fade in your new video. That's about what I can think of without breaking open QC and mucking about.

-L

Lucas Benjaminh Krech

Lighting and Video Artist

www.lucaskrech.com

646.263.8439

Vimeo.com/LucasKrech

Twitter: lucaskrech

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"I think it's essential for artists to have a seat at the table for determining the future trajectory of technology" ~Golan Levin 

On Oct 12, 2012, at 12:53 PM, Sean Smallman wrote:

Hi all,

I am looking at basically attempting to devamp a video cue. 

I would like to start a video on an endless loop, but then when the next cue is played, have it allow the previous video loop to finish before running the next video.

Any ideas? It seems like it should be simple, but I am tired enough the answer is not coming easily enough.

Thanks!

-Sean

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[Dave "luckydave" Memory]

On Friday, October 12, 2012 at 3:53 PM, Sean Smallman wrote:

I am looking at basically attempting to devamp a video cue. 

I would like to start a video on an endless loop, but then when the next cue is played, have it allow the previous video loop to finish before running the next video.

There's no built-in function for video devamping, but you could do it with an audio devamp. Start the video and the audio cues together. Any old audio cue will do, just turn the levels down and set its loop time to match the video's duration. Then use a Devamp cue on the audio cue, tell it to trigger the next cue in the cue list, which in turn starts the next video cue and stops the current one. You'll need to add a Load cue to load the next video cue, but that's easy enough.

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[Mike P]

A trick I use is to build a loop in a separate cue list with a Goto to run the video and when I want it to play out. I use a Disarm to disable the Goto cue. Then the last video plays out. Not quite sure how you lag the start of the next cue though.

10 VIDEO CUE (file) Autofollow
12 GOTO 10 Continue

30 DISARM 12

I also use this when I can't get a truly loopable video and have to fake it with a second copy that dissolves over the first.


Mike Post
(601) 307-8657
mdp...@mac.com
http://mdpostdesign.com