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Re: FCPX not interpreting 1440x1080 video correctly
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Re: FCPX not interpreting 1440x1080 video correctly

  • Subject: Re: FCPX not interpreting 1440x1080 video correctly
  • From: Jon Chappell <email@hidden>
  • Date: Sun, 16 Apr 2017 01:42:37 -0700
Thanks Martin. I have a customer who keeps me on my toes with exotic formats :)

I had assumed that FCPX would take the resolution literally and if you wanted it stretched you would need to use the paspH / paspV attributes. But even if I specify pasp values of 1:1 it still pillarboxes it.

I'll use FFVideoFormatRateUndefined for now but I think I'll still file it as a bug because if you explicitly specify a 1:1 pixel aspect ratio it should definitely be importing the video at its native resolution.

Regards,
Jon Chappell.
CEO, Digital Rebellion LLC.
http://www.digitalrebellion.com

On Sat, Apr 15, 2017 at 11:16 PM, Martin Baker <email@hidden> wrote:
Putting aside the fact that it’s a bit weird to be using 1440x1080 square pixel media (because as a standard non-square pixel size it can cause issues like this), what’s happening is that without a format name specified, FCP is seeing 1440x1080 in the width/height and incorrectly inferring that this is non-square pixel media without taking into account the actual 1:1 pixel aspect ratio in the file.

It seems that when you import the file directly, FCP correctly reads the 1:1 PAR in the file and doesn’t make any assumptions about this being a non-square pixel file.

For XML import, the solution is to specify 
name="FFVideoFormatRateUndefined” 
in the format element, which stops FCP from making any incorrect assumptions about the PAR.

Martin Baker
www.digital-heaven.co.uk 
www.twitter.com/digitalheaven
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On 16 Apr 2017, at 04:45, Jon Chappell <jonchappell@digitalrebellion.com> wrote:

I have a 1440x1080 (i.e. 4:3 aspect ratio) video clip that when imported via XML appears as a 16:9 clip with pillarboxes on the sides.

But if I drag the clip into FCPX it displays correctly as a 4:3 clip.

This is the XML I am creating:

<fcpxml version="1.5">
<resources>
<format id="r1" name="FFVideoFormat1440x1080p24" frameDuration="100/2400s" width="1440" height="1080"/>
<asset id="r2" name="Redacted" src="">Redacted.mov" format="r1" duration="9600/2400s" start="1085200/2400s" hasVideo="1" hasAudio="1" audioSources="1" audioChannels="2" audioRate="48000"/>

And this is the XML FCPX generates from the clip when imported manually:

<fcpxml version="1.5">
    <resources>
        <format id="r1" frameDuration="100/2400s" width="1440" height="1080"/>
        <asset id="r2" name="Redacted" uid="23AE001452758B6046B70CCE8753F273" src="">file:///Users/Jon/Movies/Untitled.fcpbundle/Redacted/Original Media/Redacted.mov" start="1085200/2400s" duration="4s" hasVideo="1" format="r1" hasAudio="1" audioSources="1" audioChannels="2" audioRate="48000">

The only difference I can see is that FCPX does not include the video format in the XML file. And indeed, if I don't specify the format it imports correctly as a 4:3 clip.

But surely that's a mistake? It seems like the format should always be specified to prevent misinterpretations and FFVideoFormat1440x1080p24 is a valid format. It's listed on this page: https://developer.apple.com/library/content/documentation/FinalCutProX/Reference/FinalCutProXXMLFormat/FCPXMLSupportedIdentifiers/FCPXMLSupportedIdentifiers.html#//apple_ref/doc/uid/TP40011227-CH3-SW2

I am using FCPX 10.3.3 by the way.

Regards,
Jon Chappell.
CEO, Digital Rebellion LLC.
http://www.digitalrebellion.com
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References: 
 >FCPX not interpreting 1440x1080 video correctly (From: Jon Chappell <email@hidden>)
 >Re: FCPX not interpreting 1440x1080 video correctly (From: Martin Baker <email@hidden>)

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