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FCPX produces color shift and gamut error on import

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Chad Smith
FCPX produces color shift and gamut error on import
on Jan 27, 2018 at 6:16:34 pm

When I import and Avid MXF file into FCPX the result is a lowering of contrast and a shift in the red channel. It also produces an out of gamut error. If I take the same file and import it into Resolve 14 I do not get the contrast shift and gamut error and the file remains in broadcast spec.

If I look at the file in FCPX it is in the proper REC 709 color space. So not sure what is going on or how to fix this in FCPX

Anyone else have this experience with FCPX importing Avid MXF files? I am having to rebuild the project in Resolve 12.5 as R14 does not support export of 4ch audio to deliver the master to the network.

FCPX 10.4 and have the latest Pro Video codec update installed.


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Jeremy Garchow
Re: FCPX produces color shift and gamut error on import
on Jan 28, 2018 at 2:31:25 pm

See this thread: https://forums.creativecow.net/thread/344/49874#49874


With the answer in this post: https://forums.creativecow.net/readpost/344/49909

In short, the Blackmagic uncompressed QT codec causes a conflict. Pull it out of the QT folder and restart your machine.


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Chad Smith
Re: FCPX produces color shift and gamut error on import
on Jan 28, 2018 at 5:16:30 pm

Hi Jeremy. Thanks for posting. I pulled out the BMD codec from the quicktime folder in the library and restarted my machine. Made a new FCPX library and imported on of the DNxHD 175 MXF files into FCPX 10.4 and still got out of gamut errors. However the contrast was better.

I will continue to export this project via R12 as the Avid MXF are read correctly in that app AND I am able to export a quicktime with 4 channels of audio to deliver to the network ☺

OSX 10.12.6
FCPX 10.4


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Jeremy Garchow
Re: FCPX produces color shift and gamut error on import
on Jan 28, 2018 at 10:36:58 pm

[Chad Smith] "Made a new FCPX library and imported on of the DNxHD 175 MXF files into FCPX 10.4 and still got out of gamut errors. However the contrast was better. "

Was there a camera LUT that was applied mistakenly? Have you tried to override the Color Space?

Do you have a sample file that I could test?


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Chad Smith
Re: FCPX produces color shift and gamut error on import
on Jan 29, 2018 at 1:14:03 am

The files I am working with are show masters that came from the network. All files are approximately 18 gigs or so. Can't upload them.

No LUT to my knowledge is being applied. If I look in the info tab is says REC 709. Not sure how to override the color space. Will have to look into that.

Perhaps I can export bars from R14 and post for you?

Thanks for your help!


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Jeremy Garchow
Re: FCPX produces color shift and gamut error on import
on Jan 29, 2018 at 1:19:54 am

Let’s see if the bars work, yes. Just curious is all.

Set your FCPX inspector to “settings” on the drop down menu and you will see color settings override and camera LUT, but my guess those are OK


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Chad Smith
Re: FCPX produces color shift and gamut error on import
on Feb 12, 2018 at 10:19:26 pm

Hey Jeremy

Sorry for the delay. Had to get some jobs out ☺

My color space override is set to Off and the Camera LUT is set to None.

Not sure if the below google drive link will work but, I put a short ProRes file up with Bars. This is an export of Avid media from FCPX 10.4. Wondering how these bars look on your end. My feeling is there something amiss with 10.4 and its introduction of HDR. I think it is getting confused and does not decode the file properly as a result but that is just a hunch.

https://drive.google.com/open?id=1OYmdS5phPksRw29XiUISMznnqdLVNY0d

Let me know if there is a better way to get you the file. 1.3 Megs or so.

Thx


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Jeremy Garchow
Re: FCPX produces color shift and gamut error on import
on Feb 12, 2018 at 11:17:14 pm

[Chad Smith] "Sorry for the delay. Had to get some jobs out ☺
"


The best kind of delay.




[Chad Smith] "Wondering how these bars look on your end. "

They look perfect:




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Chad Smith
Re: FCPX produces color shift and gamut error on import
on Feb 13, 2018 at 2:43:08 am

Very Strange. Are you on FCPX 10.4 ?

This is what I see when I output bars via FCPX 10.4 via BMD Ultrastudio 4K Extreme on my Tek. When I look at the same bars going though the same hardware via Resolve 12.5 Studio or 14 Studio the bars are fine. FYI this is after I pulled out the BMD Uncompressed codec as you mention in another post.

Using one release back from the current BMD driver. Perhaps it is a BMD issue.






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Jeremy Garchow
Re: FCPX produces color shift and gamut error on import
on Feb 13, 2018 at 3:05:37 am

Yes, 10.4

What do the bars look like in FCPX? If so, then maybe it is a BMD setting of it’s happening on the hardware out?


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Chad Smith
Re: FCPX produces color shift and gamut error on import
on Feb 16, 2018 at 2:23:59 am

With FCPX 10.4 the bars are never looking correct when using a thunderbolt IO device connected to my Tektronix WVR-5000. The bars look fine on the scopes within FCPX. I have tried this with an AJA T-Tap, BMD UltraStudio Extreme 4K and BMD UltraStudio Mini. Get the same results on video output to the scopes. Even if I use the old Bars generator that the Ripple Training guys ported over to FCPX instead of a QT file.

If I put up the same quicktime files in PP and Resolve 12.5 and 14 and the bars look fine on output to the scopes using the same I/O box.

If I put the same quicktime files up in FCPX 10.3 the bars look fine on output to the scopes using the same I/O box.

Would love to know if I am missing a setting someplace ?


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Jeremy Garchow
Re: FCPX produces color shift and gamut error on import
on Feb 16, 2018 at 2:44:27 am
Last Edited By Jeremy Garchow on Feb 16, 2018 at 3:05:40 am

Is your Library set for 709 vs wide gamut?

And have you updated the drivers of all of those devices (uninstall/reinstall)?


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Chad Smith
Re: FCPX produces color shift and gamut error on import
on Feb 16, 2018 at 3:17:09 am

Yes the library in FCPX 10.4 is set to REC 709 color space

All drivers are recent


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Jeremy Garchow
Re: FCPX produces color shift and gamut error on import
on Feb 16, 2018 at 3:21:12 am

Have you tried an uninstall and reinstall?


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Chad Smith
Re: FCPX produces color shift and gamut error on import
on Feb 16, 2018 at 4:56:58 pm

Just trashed FCPX all perfs, restarted and re installed FCPX 10.4

Same issue with Bars being out of spec


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Jeremy Garchow
Re: FCPX produces color shift and gamut error on import
on Feb 16, 2018 at 5:27:38 pm

[Chad Smith] "Same issue with Bars being out of spec"

Did you uninstall and reinstall the AJA and or Blackmagic Drivers?

If that doesn't work, have to written AJA support?

Jeremy


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Chad Smith
Re: FCPX produces color shift and gamut error on import
on Feb 16, 2018 at 7:05:19 pm

The AJA T-Tap out of FCPX 10.4 is displaying bars correctly now. So re installing FCPX 10.4 has fixed the problem with the AJA device.

However the bars are still out of spec when using BMD UltraStudio Mini Monitor and UltraStudio 4K Extreme. This is with the current BMD driver 10.9.11


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