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Fail during 4k anamorphic export in FCPX and Compressor

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leslie woo
Fail during 4k anamorphic export in FCPX and Compressor
on Jan 12, 2016 at 9:28:06 pm

Hi,


I'm trying to export the project I'm working on, a 4K project shot with an anamorphic lens giving a 2.35:1 aspect ratio.

Final size should be 5076 x 2160

Both Compressor and FCPX fail almost immediately whenever I try to export with these settings. If I try and export with a scaled version, 4096x1742 it exports without any issues. The problem with this is that Youtube/Vimeo, etc.. do not interpret the file as a 4k movie.

Has anyone experienced this before? Any recommendations/suggestions?


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Noah Kadner
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 12, 2016 at 10:27:02 pm

Not sure how you do this without a hard letterbox. i.e. 4096X2160 with black bars top/bottom.

Noah

FCPWORKS - FCPX Workflow
FCP eXchange - FCPX Workshops


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Jeff Kirkland
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 12, 2016 at 11:24:04 pm

I've output bigger and odder frame sizes from FCPX without any issue so it should output without a crash but if this is for YouTube then 4096 x 2160 is the widest you can go if you want it to be recognised. YouTube actually recommend UHD as the maximum so 3840 x 2160 would probably be even more likely to work.

Jeff Kirkland | Video Producer | Southern Creative Media | Melbourne Australia
http://www.southerncreative.com.au | G+: http://gplus.to/jeffkirkland | Twitter: @jeffkirkland


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leslie woo
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 12, 2016 at 11:32:38 pm

Hi Jeff,

Thanks for jumping in to help me. Would you know off hand the largest or widest pixel video you've successfully exported?

I'm now also trying to think beyond youtube for offline consumption and why I'm seeing failures.

Do you think it could be hardware related?


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Jeff Kirkland
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 13, 2016 at 1:09:57 am

The widest was about 10k pixels but the height was only about 1k from memory.

I'm not sure how long a project you're trying to output but I just tested 10 minutes at 5076 x 2160 and had no issues on my 2013 Mac Pro and my 2013 Macbook Air is at 60% and showing no signs of an issue either.

I wouldn't rule anything out but I think it's more likely codec or software than hardware if my Macbook Air is chugging happily along.

Jeff Kirkland | Video Producer | Southern Creative Media | Melbourne Australia
http://www.southerncreative.com.au | G+: http://gplus.to/jeffkirkland | Twitter: @jeffkirkland


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leslie woo
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 13, 2016 at 1:22:21 am

My final video will be under 3minutes so if you're able to export with that setting and the 10k setting it eliminates width restrictions from possible issues.


My FCPX and Compressor are both up to date and I'm running mac osx el capitan 10.11.2

any ideas of where to start crossing off possible software/codec issues?


I succesfully exported a 4500px wide version which is better than the 4096px. It got to 80-85% easily, the last 5% took about the same amount of time as the first 85% did, slowed down significantly with the fans starting to get noisy.


I'm now testing 4698x1999, currently at 80%.


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Jeff Kirkland
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 13, 2016 at 1:41:46 am

it sounds to me more like you're hitting an issue with a video effect towards the end of the clip. Maybe you're using something that isn't 4k+ capable and it's slowing the system down and crashing?

That's just a random thought but might be worth taking look.

Jeff Kirkland | Video Producer | Southern Creative Media | Melbourne Australia
http://www.southerncreative.com.au | G+: http://gplus.to/jeffkirkland | Twitter: @jeffkirkland


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leslie woo
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 13, 2016 at 2:56:11 am

I never thought of that. I'll try with a fresh project/event/clip without effects and see if that's more successful.


Another update: I've managed to get a 4698px x 1999px render to export successfully but anything over 1999px in height has failed repeatedly.


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leslie woo
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 13, 2016 at 3:54:20 am

Tried with fresh everything to export 5120x2160 (FCPX has it as a 5k project default setting) and no luck from direct export from FCPX or from 'send to compressor'.


I've managed to get a 4096x2160 shorter clip successfully exported as well as a 4698x1999 clip but still can't get anything larger to work.


If there are any other theory's I'd love to hear them.


Thanks guys


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leslie woo
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 13, 2016 at 4:54:20 pm

Hey Jeff,

Do you know the format you were able to export your larger clips to?

Was it H264 or was it another format?

There appears to be a maximum output width on H264 of 4096x2304

Would you mind taking a look to help confirm the theory?


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Jeff Kirkland
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 14, 2016 at 1:25:25 am

I tested it with ProRes 422 LT. You are 100% right in that h.264 doesn't support resolutions above 4k.

I'm wondering, apart from exporting a 1:1 master file which you'd want in ProRes anyway, do you need to create a h.264 at that odd size? If it's not a standard 4k/HD/SD resolution, nothing's really going to know what to do with it.

Jeff Kirkland | Video Producer | Southern Creative Media | Melbourne Australia
http://www.southerncreative.com.au | G+: http://gplus.to/jeffkirkland | Twitter: @jeffkirkland


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leslie woo
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 14, 2016 at 3:12:49 pm

Hi Jeff,


I agree its not of much use. I was trying to debug the problem, not understanding where the error was coming from. I had not found any information about 4K in true anamorphic ratio, only black bars which didn't fit my project goals so I was curious about why I wasnt able to get a 2160height (4K) and not a 5076width

That aspect ratio is nearly identical to FCPX 5K default setting.

since I'm able to export a 4698x1999 I get all the info I need and Youtube recognizes it as 4K which is important to my client.

I know most people will end up watching on their mobile at 480 or 720 if we're lucky but at least there will be the option for UHD playback.

Thanks for your help testing things out!


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leslie woo
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 12, 2016 at 11:29:38 pm

Hi Noah,

I think I may have been unclear in my original message.

To clarify, I'm not looking to add black bars or to matte my video, the raw, out of camera footage is 3840x2160 with a 1.33x horizontal squeeze, 5107x2160.


For some reason Compressor will not process a full res export of my footage. However, if I scale down the export to 4096px (w) then I can get my 2.35:1 as a 4096x1742 file, so I'm losing roughly 20% of my max viewable size.


I'm wondering if anyone else is able to export a video of 5107px wide or if there's a bug in Compressor that fails projects that are too wide.


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leslie woo
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 12, 2016 at 11:39:52 pm

I'm currently testing exporting at gradually increased file widths. I'm up to 4500px wide and is at about 85% on the progress bar without failing.

I'll share my finding if that's helpful.


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James Cude
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 12, 2016 at 11:40:47 pm

looks like youtube's 4k image size limit is 3840x2160. go to this page can scroll to "Resolution and aspect ratio" for more info:

Recommended upload encoding settings (Advanced) - YouTube Help
https://support.google.com/youtube/answer/1722171


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leslie woo
Re: Fail during 4k anamorphic export in FCPX and Compressor
on Jan 12, 2016 at 11:42:39 pm

Hi James,

If you take a look at the comments above you'll see the issue I'm experiencing in more detail.

Thank you for taking the time to try and help me through this.


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