Editing h.264 (1280 x 720) in FCP

Posted by ponzzz 
Editing h.264 (1280 x 720) in FCP
April 27, 2009 08:51PM
I'm probably going in the opposite direction of most everyone else but...

I have a new point & shoot (Canon SD 960IS) that shoots H.264 HD at 1280 x 720 30 fps. I have been able to do simple cuts and even lay text over the footage in a FCP timeline and then export it out as a h.264 QT movie. But, if I try to do any video transitions or dissolves the video around those areas acts unpredictably, jumping frames, etc.

I searched posts here and tried the proper workflow of convert to ProRes, edit, then export back to h.264 but it took a hell of a long time for each conversion (with an intel quad core tower) and I'm trying to develop a quick portable and simple workflow for video blogging. I want to shoot, load into my MBP, edit, and then upload to YouTube. (I can always shoot SD but the HD footage is really sweet for my purposes.)

I know that FCP doesn't support h.264 natively but...it seems to handle it OK in the timeline for simple edits. Does anyone know a better working method? Any hints of FCP being able to handle h.264 footage natively in the near future?

Thanks, Pons
Re: Editing h.264 (1280 x 720) in FCP
April 28, 2009 12:14PM
Technically Final Cut does support native H.264 editing, through the open-format timeline feature. Technically, anything Quicktime can play back can be cut on a Final Cut timeline, with varying degrees of rendering required for real-time full-quality playback.

As you've discovered, it really doesn't work that way in practice.

The workflow you have is the objectively correct one: convert media in a non-conveniently-editable format into an intermediate format before cutting on it. The key question at this point is why it's taking you an unacceptably long time to batch-convert your H.264 media to ProRes. That's a relatively lightweight conversion process, as far as computer resources go, but it does require a significant amount of disk bandwidth to write out the ProRes media. Is it possible your conversion pipeline is I/O bound?

Since you're only going to Youtube, you might consider using DVCPRO HD as your intermediate format instead of ProRes, if ProRes requires more I/O bandwidth than your system can provide during the batch-conversion process.

Another option ? though I can't in good conscience recommend this one except as a what-the-hell experiment you might try ? is keeping all your media in H.264, but cutting it into a ProRes timeline. This workflow works very well for formats like DVCPRO HD and HDV, but I have no idea how it would work with H.264 media. Your system might not even be able to play back H.264 in a ProRes timeline in real time, which would be a total deal-breaker if it were me.

Re: Editing h.264 (1280 x 720) in FCP
April 28, 2009 09:19PM
I always convert from one disk to another...they are internal disks. Could that be an I/O thing...I have no idea. Other than that i don't know why the conversion would take so long.

I'm going to try cutting H.264 in a ProRes sequence setting and see what happens.

thanks for the help.
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