Re: FCP Time Remap explained
Re: FCP Time Remap explained
- Subject: Re: FCP Time Remap explained
- From: Ky Hopwood <email@hidden>
- Date: Thu, 30 Apr 2009 15:17:05 -0700
On Apr 30, 2009, at 2:16 PM, Paul Stephen Carlin wrote: I am trying to decipher a FCP XML and understand the Time Remap effect parameters. Are there any resources available to explain Apple's logic in this particular effect? My biggest mystery is how it comes up with the in point for a clip running 100% reversed. The <in> doesn't match the actual source in point. However, the graphdict does.
Documentation for XML Timeremap is in the works.
For your specific question, if the you are in constant reverse, you should subtract 1 from the value. This is only the case for constant reverse, if time remap is labeled as variable speed, don't decrement even if it plays in reverse.
Is there an easy way to determine what source material is being used no matter what the speed effect?
Just walk the keyframes between speedkfin and speedkfout and find the highest and lowest value. floor() the lowest and ceil() the highest if fractional. Keeping in mind of course the constant.
Unfortunately currently FCP allows beziers to extend beyond keyframe values and cannot be easily derived.
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