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HDV – Render Time = Export Time… what gives?
yea, I know I posted this at the Apple Discussion boards to but was hoping to have a larger audience…
As we all should know if you are working a timeline, and all your stuff is rendered it should take far less time to EXPORT a self contained movie then if the same timeline is NOT rendered.
do this experiment and tell me if you get the same results.
Make a 1 minute HDV timeline. add filters so that the ENTIRE minute needs rendering. – RENDER IT… put a stopwatch on it so you know exactly how long it took to render.
NOW…
EXPORT that same minute of timeline. Make it a self contained movie. Again, put a stop watch on it so you know how long it takes to export.
I will take the same amount of time. In otherwords… there is no benefit to RENDERING your timeline before you EXPORT it.
It is as if FCP doesn’t recognize that your timeline has been rendered.
Am I alone in this observation.
IF indeed this is a programing SNAFU… can we get it fixed in an update?
Thanks.
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7 Replies
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Is this a single one minute clip, or are there cuts in it?
All the best,
Tom
Author: “Final Cut Pro 5 Editing Essentials” and “Final Cut Express 2 Editing Workshop” Class on Demand “Complete Training for FCP5” DVD
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What are you doing working on christmas eve?
I thought you were shopping for last minute gifts.
Shut that mac down go home and worry about all the nonsense in FCP after christmas.
Tony Salgado
PS- Who am I to talk because as I write I am editing the annual christmas parade celebration on FCP. I just had a free moment while my rendering is going on so I jumped on the cow.
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Tom…
IN my experiment there were multiple cuts. but the point is that everything is rendered and in MY experience a Self-Contained export of a pre-rendered file in DV would normally go very quickly… HOWEVER. the same type of export of an HDV timeline makes for exactly the same export time whether or not the timeline is rendered.
strange.
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Try it with a single one minute piece of HDV material. With a sequence with cuts each clip is rendered separately so it’s still editable. When you export FCP has to rebuilt the GOP structure of the rendered material around each cut. That’s actually quite a slow process. I tried it on a short single clip, and after rendering the sequence, which took about three minutes, it exported in about five seconds.
All the best,
Tom
Author: “Final Cut Pro 5 Editing Essentials” and “Final Cut Express 2 Editing Workshop” Class on Demand “Complete Training for FCP5” DVD
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tom…
very interesting explanation about rebuilding the GOP… best I’ve heard so far.
do you think it makes sence that it does this if the CODEC of the timeline is actually NOT HDV…
it’s a long story but my aquisition is HDV and the TIMELINE is Animation codec.
Anyway… i think you may be on to something about the GOP.
thanks
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> it’s a long story but my aquisition is HDV and the TIMELINE is Animation codec.
If so, what exactly would you expect FCP to do? Rendering the timeline will render everything to the Animation codec and Print to Video will render everything to HDV. Those two renders can not be combined.
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ah yes…the confusion…
I am NOT printing to video. i am rendering the timeline as is… (Animation Codec) and then my desire is to EXPORT that same timeline to an uncompressed Animation codec file… therefore it would seem logical, that the render files could be utilized in creating the EXPORT file. But this is NOT the case, even if the timeline has been RENDERED (in Animation Codec) it takes just as long to EXPORT (in Animation Codec) the same timeline.
There is no PRINT to Video in this particular workflow.
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