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You are here: MacNN Forums > Our Archives > General Archives > Digital Video & Audio Archives > FCP: How to delete multiple frames from long sequence?

 
FCP: How to delete multiple frames from long sequence?
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Mac Enthusiast
Join Date: Dec 2002
Location: Newport Beach, CA
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Sep 30, 2004, 08:37 PM
 
Hey all,

My video camera has a Interval Recording (sudo time lapse) function, but can't record only one frame as I would like. The minimum it will record is one second at a given interval. As a result, when I do a long time lapse shot, I end up with many, many, many sets of 1 second video over the time span of the shot. In FCP, I have to go and delete every frame except 1 in a given 1 second interval. The remaining frame from each interval is stacked up against each other, and a true time lapse starts to emerge.

Can anyone tell me a way to have FCP delete these frame automatically? A function that deletes every 28 frames, skips one, deletes 28, skips one, etc....


TIA....

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Forum Regular
Join Date: Apr 2001
Location: Manchester, UK
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Oct 1, 2004, 06:50 AM
 
Not sure you can in FCP.

Now if you were back at square one you could use a specific timelapse program such as the one below to record straight to a QT movie (takes picture from your camera via the firewire and records direct to your computer hard drive a single frame at whatever interval you require).

http://www.bensoftware.com/btv.html

Steve
     
Mac Elite
Join Date: May 2000
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Oct 1, 2004, 08:33 AM
 
It's probably not the best solution but maybe it's worth a try. You could accelerate the clips. Unless you get a single clip made of many 1 second shots, edit all your 1 second clips to your liking. Create a new sequence and drag your edited sequence in so it become a single nested element (This won't be necessary you have a signle clip made of many 1 second shots to begin with. Then change the speed of the clip to about 3000%, (Simple math: 1 sec =100%, then to make 1 second last 1 frame you multiply 30 frames X 100% = 3000%). For different results, try with the Frame Blending On or Off. The frame blending on seting should give a blurry trail feeling, but it my be interesting.

I hope it works.
     
Forum Regular
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Oct 1, 2004, 09:21 AM
 
The other thing you could do is batch capture all of the clips and only set the batch to 1 frame per capture and then assemble all of the clips on the timeline. Granted it would be a bit of a hassle and probbaly take more time than you want.
Quicksilver 867, 700mhz iBook, 1st Gen iPod, iSight, Newton 2100, and a 128k Mac. All operating and used on a constant Basis
     
EnVoy  (op)
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Oct 1, 2004, 02:25 PM
 
Hmmmm, looks like the batch capture function might be the only way, kind of a pain though. I don't have a computer with me when shooting, so cant use the btv app, although it looks nice. Accelerating the clips wont give the desired effect, but I like the frame blending idea.

Thanks for all the input.....

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Mac Elite
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Oct 1, 2004, 06:38 PM
 
When you accelerate a clip, frames are dropped. If a clip is accelerated to 200%, it will drop one out of two frames to maintain the 30 frames per second video frame rate. A 2 seconds clip will become a 1 second clip with 30 frames. Frame blending will blend previous and next frames to create a more fluid result, but without frame blending you should have clean frames. So if you accelerate a clip at 3000% it should drop 29 frames per seconds to maintain the 30 frames per second video frame rate. You should give it a try, it shouldn't take that long and maybe it works.
     
EnVoy  (op)
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Oct 2, 2004, 09:31 AM
 
dlefebvre: You are right. I accelerated the clip and it loks almost ecactly the same as my single frame technique. Thanks for the tip, this will save me loads of time

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Mac Elite
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Oct 5, 2004, 07:15 PM
 
Glad I could help. Too bad I usually get these time saving ideas right after I spent too many hours doing it the wrong way.
     
 
   
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