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Level 2

432 points

Exporting to custom m4v files from FCPX issue

Hello all,

Recently I decided to export a completed 2 hour long video from FCPX (10.1) to Compressor using a custom m4v setting. Basically the 1080p Apple Devices setting with the bit rate changed from 10000 to 5000. Eveything went fine it seemed except the outputted file was much longer than the original file. The original ends right around 2 hours... but the resulting file was 2 hours, 26 minutes long. I looked in the timeline back in Final Cut to see if there was a 'rougue' clip somewhere back at the 2:26:00 mark, but there's nothing there. In fact, my timeline ends shortly after the video itself ends at 2 hours.

If this a bug or is there a setting I should do in the FCPX timeline to indicate where the video should stop exporting?

Any feedback on this is appreciated.

Posted on Jan 15, 2014 8:58 AM

21 replies

Russ H

Level 7

22,432 points

Mar 10, 2014 10:33 AM in response to Matt13

Matt13 wrote:

Surprisingly, the quality of the Pro Res file is not as good as the m4v file. Without a better way of explaining it, it looks like the Pro Res file has some 'striping' issues. In some scenes, especially when objects or people are moving, you can see lines on the object or person's outline.

The MP4 (.m4v) settings in Compressor automatically de-interlace; the theory is that people using that setting will show the video on a computer. What you're describing is almost certainly interlacing.

Russ

Russ H

Level 7

22,432 points

Mar 10, 2014 10:41 AM in response to Matt13

So finally…if you export a Pro Res Timeline with the Apple Device custom preset, is the length correct? In other words, if you optimize your media and have FCPX determine your project properties from the first clip edited to the timeline, you will get a Pro Res Timeline. Exporting that will be equivalent to what Warwick was referring to in his post (non temporal codec).

Russ

Matt13 Author

Level 2

432 points

Mar 10, 2014 10:41 AM in response to Russ H

Ah.... gotcha. I assume there would be a way to de-interlace if I wanted to with a ProRes file. Good to know. I'll update the situation when I hear back from Apple. I sent them a fx file for review.

Matt13 Author

Level 2

432 points

Mar 10, 2014 11:00 AM in response to Russ H

Sometimes I wish we were all in a studio somewhere and could walk back and forth between workstations whenever we have problems to show everyone in real-time what our issues are! But I think I know what you mean now, Russ.

I was simply exporting a master file to pro-res using the default 'Master File' export option. I'm back in FCPX, and went back into that function and just now saw an option for 'Apple Devices' listed there. Duh. My next export I'll try that way. It looks like it reverts to the default 1080p export option for Apple Devices, but who know, maybe it'll export w/o the extra black screen that way.

I'll report back after my next export.

Mar 10, 2014 10:25 PM in response to Matt13

Hi Matt and Russ, I just had a look. I can't see how to REMOVE the "solved" from my end. Any suggestions?l

Russ H

Level 7

22,432 points

Mar 11, 2014 4:46 AM in response to Warwick Teale

Ha! Can't be done. It doesn't begin to make up for all the informative posts you've made where the OPs overlooked the points button!

Russ

Exporting to custom m4v files from FCPX issue