September 2011 - Pro-apps-dev

Re: Apple Events in FCPX
by Jon Chappell 21 Sep '11

21 Sep '11

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Re: Apple Events in FCPX
by Vijay Sundaram 21 Sep '11

21 Sep '11

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Re: FCP X XML
by Jack James 21 Sep '11

21 Sep '11

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Apple Events in FCPX
by Jon Chappell 21 Sep '11

21 Sep '11

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Re: FCP X XML
by Gregory Clarke 21 Sep '11

21 Sep '11

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Re: FCP X XML
by Jon Chappell 21 Sep '11

21 Sep '11

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Re: FCP X XML
by Jack James 21 Sep '11

21 Sep '11

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Re: Random marker timebases
by Rainer Standke 21 Sep '11

21 Sep '11

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com Just looking at it, not knowing anything, I'd theorize that the timebases aren't random, they are all 'contained' in the 2400 that seems to be the timebase of the clip. Your first marker would be at 22/3 or the equivalent of 17600/2400. You arrive at the second ratio by multiplying both sides by 800, and you can arrive at the 800 by dividing 2400 by 3. I have to admit it the wisdom of doing it like this currently eludes me... I guess it is a lot closer to the way that Quicktime works internally, and that you might have an easier time calculating mixed frame rate timings. Still scratching my head, Rainer On Sep 20, 2011, at 19:01, Jon Chappell wrote: > I was playing around with a test project and exported an XML file. The duration and offset timebases of the media are predictable: 2400, 48000, 50, etc. > > However, the marker start times seem to have bizarre timebases. Why is the timebase for the start position not inherited from the clip or project timebase like the duration? > > Here's a sample of the XML file. You can see that the marker durations are all "100/2400s" but the start times all have different and seemingly random timebases. Is this by design or is it a bug? The FCP XML guide doesn't mention it. > > <clip name="90-8+_ProRes_Proxy" duration="37s" audioStart="0s" audioDuration="90000/2400s" format="r2" tcFormat="NDF"> > <video ref="r4" duration="90000/2400s"> > <audio lane="-1" ref="r4" duration="1800000/48000s" role="dialogue"/> > </video> > <clip lane="1" offset="67700/2400s" name="90-8+_ProRes_Proxy" duration="28700/2400s" start="42000/2400s" tcFormat="NDF"> > <video ref="r4" duration="90000/2400s"> > <audio lane="-1" ref="r4" duration="1800000/48000s" role="dialogue"/> > </video> > </clip> > <clip lane="-1" offset="76500/2400s" name="90-8+_ProRes_Proxy" duration="28700/2400s" start="42000/2400s" tcFormat="NDF"> > <video ref="r4" duration="90000/2400s"> > <audio lane="-1" ref="r4" duration="1800000/48000s" role="dialogue"/> > </video> > </clip> > <marker start="22/3s" duration="100/2400s" value="Marker 1"/> > <marker start="221/24s" duration="100/2400s" value="Marker 2"/> > <marker start="113/12s" duration="100/2400s" value="Marker 3"/> > <marker start="21/2s" duration="100/2400s" value="Marker 4"/> > <marker start="34/3s" duration="100/2400s" value="Marker 5"/> > <marker start="277/24s" duration="100/2400s" value="Marker 6"/> > <marker start="151/12s" duration="100/2400s" value="Marker 7"/> > <marker start="305/24s" duration="100/2400s" value="Marker 8"/> > <marker start="27/2s" duration="100/2400s" value="Marker 9"/> > <marker start="109/8s" duration="100/2400s" value="Marker 10"/> > <marker start="113/8s" duration="100/2400s" value="Marker 11"/> > </clip> > > > Regards, > Jon Chappell. > CEO, Digital Rebellion LLC. > http://www.digitalrebellion.com > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/pro-apps-dev/lists%40standke.com > > This email sent to lists(a)standke.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… This email sent to site_archiver(a)lists.apple.com

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Random marker timebases
by Jon Chappell 21 Sep '11

21 Sep '11

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Re: FCP X XML
by Jon Chappell 21 Sep '11

21 Sep '11

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