leslie_w
Level 1 (0 points)

Q: 4k anamorphic exports fail

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?

Compressor, OS X El Capitan (10.11.2), late 2014 MBP 13" retina

Posted on Jan 12, 2016 1:23 PM

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leslie_w

Q: 4k anamorphic exports fail

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  • Helpful answers

  • by Russ H,

    Russ H Russ H Jan 12, 2016 2:34 PM in response to leslie_w
    Level 7 (21,880 points)
    Quicktime
    Jan 12, 2016 2:34 PM in response to leslie_w

    Have you tried the 2.35 custom setting, then entering the correct width?

     

    Russ

  • by James Cude,

    James Cude James Cude Jan 12, 2016 2:43 PM in response to leslie_w
    Level 4 (1,429 points)
    Jan 12, 2016 2:43 PM in response to leslie_w

    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

  • by leslie_w,

    leslie_w leslie_w Jan 12, 2016 3:03 PM in response to Russ H
    Level 1 (0 points)
    Jan 12, 2016 3:03 PM in response to Russ H

    Hi Russ,

     

    I tried this, its actually how I found out that it will work if I use 4096 as my max width.

     

    If i leave the original width, I get the error.

     

    I've attached screen shots of my settings that work.

     

    Screen Shot 2016-01-12 at 6.00.19 PM.png

  • by leslie_w,

    leslie_w leslie_w Jan 12, 2016 3:23 PM in response to James Cude
    Level 1 (0 points)
    Jan 12, 2016 3:23 PM in response to James Cude

    Thanks James,

     

    My issue isn't with Youtube's uploading but with Compressor's Exporting. Sorry if I was confusing in my OP. I'll eventually have to meet Youtube's settings if I wish to share via their site. However, if I wish to display and share my video for offline, I dont understand why I need to scale down the original footage on export.

     

     

    I can't find any documentation or posts related to maximum pixel width on Compressor and wondering if it is a bug or if its another issue.

  • by Russ H,

    Russ H Russ H Jan 12, 2016 3:30 PM in response to leslie_w
    Level 7 (21,880 points)
    Quicktime
    Jan 12, 2016 3:30 PM in response to leslie_w

    How are you bringing this into Compressor?

     

    If you want, upload a few seconds to Dropbox so we can test. I'm running out to a meeting but will be able to test it later.

     

    Russ

  • by leslie_w,

    leslie_w leslie_w Jan 12, 2016 3:37 PM in response to Russ H
    Level 1 (0 points)
    Jan 12, 2016 3:37 PM in response to Russ H

    It's as a 'share to compressor' from FCPX.

     

    I'm going to package a short clip and upload it. When its ready I'll post the link.

     

    Thanks!

  • by leslie_w,

    leslie_w leslie_w Jan 13, 2016 9:04 AM in response to leslie_w
    Level 1 (0 points)
    Jan 13, 2016 9:04 AM in response to leslie_w

    Hey Russ,

     

    I've made some progress with this issue.

     

    Apparently the H264 codec has some limitations on image resolution sizes. According to what I was told, the max size might be 4096x2304. I'm not 100% confident as I've been able to successfully export a 4197x2160 as well as a 4698x1999 video.

     

    It could explain why I'm getting fails, still doing some more research.

     

    Hopefully this helps someone else down the line.

  • by Russ H,

    Russ H Russ H Jan 13, 2016 10:44 AM in response to leslie_w
    Level 7 (21,880 points)
    Quicktime
    Jan 13, 2016 10:44 AM in response to leslie_w

    Thanks for posting back. Think that's true, Very helpful.

     

    Russ