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EX1 1920x1080 clips importing as 2560x1080 in FCP

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George Strother
EX1 1920x1080 clips importing as 2560x1080 in FCP
on Apr 22, 2008 at 1:16:48 am

I am using FCP 6.0.3 and XDCam Transfer 2.5.1 to import PMW-EX1 clips, XDCAM EX format.

In XDCam Transfer/Video window the clips show as -

Frame Size: 1920x1080
Codec: XDCam HD 1080i50 (35Mb/s VBR).

After import the clips show in FCP/Bin as -

Frame Size: 2560x1080
Compressor: XDCam HD 1080i50 (35 Mb/s VBR)

Checking the clips in FCP under Item Properties/Format - the anamorphic setting is not checked/enabled.

In XDCam Transfer I don't see any anamorphic setting, The XDCam Transfer help file only refers to anamorphic in FCP export settings to send the file from FCP back to an XDCam device.

Is there a way to turn anamorphic on/off in XDCam Transfer 2.5.1 before sending to FCP?

Is there a way to manually change the codec (XDCAM Transfer/Information/Video/Codec: Apple XDCAM HD 1080i50) in XDCAM Transfer? Should that be XDCAM EX 1080i50?

What is causing the scaling error?

Re-scaling to fit the timeline/canvas results in artifacts on diagonals, so I would like to fix this in the import process.

Sorry for the double post, but didn't find an answer in Final Cut Pro forum.

George
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Rafael Amador
Re: EX1 1920x1080 clips importing as 2560x1080 in FCP
on Apr 22, 2008 at 5:56:20 am

[George Strother] "Checking the clips in FCP under Item Properties/Format - the anamorphic setting is not checked/enabled. "
George,
When talking about 1080/720 there is not Anamorphic option because all are Anamorphic. In fact there is not 4/3 option.
I've suggested you to try to import using only the SONY Transfer Software without FC.
Make a try and if its works fine you will know that the issue comes from FC.



Mac OX 10.5.2-FC 6.02-QT 7.4.1
G5 2x2Gh 4GbRAM-BlackMagic Extreme
PMBP 17"Core2Duo 4GbRAM-AJA ioHD
JVC DTV-17"
SONY EX-1 . SONY PD170
..and always a big mess on top of the table.


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Don Greening
Re: EX1 1920x1080 clips importing as 2560x1080 in FCP
on Apr 22, 2008 at 6:54:23 am

By design, the Sony Transfer Tool knows that the HQ 1080 35 VBR setting is not anamorphic so it will export a properly formatted 1920x1080 frame. After the Sony Transfer Tool has converted the EX .mp4 files to the QT .mov format you can actually check for format accuracy by opening up one of the converted .mov files using Quicktime Player. This test is to confirm that the Sony Transfer Tool is transcoding the native EX format properly to the QT .mov format. The Quicktime movie of your file will display as a 1920x1080 frame size within the Quicktime Player app.

Once you've established that your EX files are the proper aspect ratio but then FCP tells you that the pixel size is 2560x1080 then it's a FCP thing and not a Sony Transfer Tool thing. Within FCP choose the XDCAM EX 1080i 50 35 VBR setting from the easy setups menu and click OK, then see what the P.A.R. of your clips are afterwards.

You can also make your own custom preset. In this case it would be square pixels (non-anamorphic) with a frame size of 1920x1080.

- Don


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Rafael Amador
Re: EX1 1920x1080 clips importing as 2560x1080 in FCP
on Apr 22, 2008 at 1:11:22 pm

The issue is very simple:

2560/1920 = 1,33333333

4/3= 1,33333333

FC is capturing your footage with a wrong pixel aspect (4/3).
Have a look in your capture presets.

Mac OX 10.5.2-FC 6.02-QT 7.4.1
G5 2x2Gh 4GbRAM-BlackMagic Extreme
PMBP 17"Core2Duo 4GbRAM-AJA ioHD
JVC DTV-17"
SONY EX-1 . SONY PD170
..and always a big mess on top of the table.


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Rafael Amador
Re: Thinking twice
on Apr 22, 2008 at 1:19:10 pm

FC can be capturing OK but interpreting wrong.
How the clips look in the QT player?
What number of pixels shows the info window?
And in the "Clip's properties" (Com+J) what shows in "Video Track".

Mac OX 10.5.2-FC 6.02-QT 7.4.1
G5 2x2Gh 4GbRAM-BlackMagic Extreme
PMBP 17"Core2Duo 4GbRAM-AJA ioHD
JVC DTV-17"
SONY EX-1 . SONY PD170
..and always a big mess on top of the table.


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Craig Seeman
Re: Thinking twice
on Apr 22, 2008 at 2:53:23 pm

Without going into a lot of detail, I've found that Quicktime can misinterpret the aspect ratio and I've found differences in how Quicktime handles aspect ratios between 7.3.1 and 7.4.x.

It hasn't impacted FCP yet but I had at least one case where iDVD was making square pixels anamorphic even though NOTHING in the file or program was set to anamorphic. In that case I found that opening and saving the file in QuicktimePro fixed the issue.

Alluding to what Rafael is mentioning and I think he's on the right track, it's possible something (Quicktime/FCP) is misinterpreting the "flag" in the file.



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George Strother
Re: Thinking twice
on Apr 22, 2008 at 2:53:25 pm

The frame size error is consistent in FCP and QT.

QT shows the clips as 2560 x 1080 in Inspector and Properties.

George
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Rafael Amador
Re: Thinking twice
on Apr 22, 2008 at 3:05:12 pm


OK. Duplicate a clip.
Go to the properties and change the Aspect ratio to 1920x180.
Bring it to FC and see the size and how its looks.
As Craig says QT7(?) started to make funny pixels aspect ratios interpretations. For example when exporting a still from a video clip, the pixels were converted to square, instead of keeping the original aspect.
In QT 7.4 I find no problems.

Mac OX 10.5.2-FC 6.02-QT 7.4.1
G5 2x2Gh 4GbRAM-BlackMagic Extreme
PMBP 17"Core2Duo 4GbRAM-AJA ioHD
JVC DTV-17"
SONY EX-1 . SONY PD170
..and always a big mess on top of the table.


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George Strother
Re: Thinking twice
on Apr 22, 2008 at 4:59:24 pm

"OK. Duplicate a clip.
Go to the properties and change the Aspect ratio to 1920x180. "

I have tried that in QT. It creates a file that is 1888x1062 no matter what window I use to change to 1920x1080. Aspect is correct in QT but always shows 1888x1062 in the info widow.

Imported to FC the properties show 1920x1080, but some artifacting is back.

Trying to export clip from FC to EX codec (transcode XDCAM HD to XDCAM EX) now. Slow though.

Finished - Plays correct aspect ratio and info shows 1920 x 1080 in QT and FC, sharper than scaling in FC Motion Tab but artifacting remains.

It still seem the best fix would be to get XDCAM Transcode to use the EX codec rather than the HD codec to open EX files. But how?

Later I will boot with an older archived OS/FCS/QT, install XDCAM Transfer and see if that helps.

George
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George Strother
Re: Thinking twice
on Apr 22, 2008 at 3:51:54 pm

re Craig and Don's posts

This is definitely an XDCAM Transfer error. The files show in the EXCAM Transfer playback window distorted by 1.33 on opening, before the transfer/transcode. The program indicates the file is 1920x1080 by doesn't display it that way.

XDCAM Transfer shows the mxf files are in Apple XDCAM HD codec, not Apple XDCAM EX codec, though the shots were taken with an EX1 camera. My guess - this is the root of the error.

QT won't open the mxf files, but VLC will. VLC shows 1920 x 1080 in Window/Information/Advanced Information/Stream O/Resolution and plays them in correct aspect ratio.

XDCAM HD blueray cameras (330/350/etc) have 1440 by 1080 chips, correct? So they and the XDCAM HD codec would be "anamorphic" or .9 pixels in 1920x1080, even though Sony doesn't use the word? Otherwise we would see 4x3 pictures.

The EX cameras have 1920x1080 chips. The XDCAM EX 1 codec should be sq pixels. Therefore no "anamorphic" voodoo.

Is there a way to tell XDCAM Transfer to assign the EX codec to these mxf files, to see if that stops the problem?


George
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Don Greening
Re: Thinking twice
on Apr 22, 2008 at 5:12:35 pm

[George Strother] "XDCAM Transfer shows the mxf files are in Apple XDCAM HD codec, not Apple XDCAM EX codec, though the shots were taken with an EX1 camera. My guess - this is the root of the error. "

Your guess is correct. This might be a bug in the Sony Transfer 2.5.1 although I wouldn't be able to run a test to try duplicating your issue because I have the earlier version of the Sony Transfer Tool. This earlier version works fine for me and I've never run into the problem you're describing.

[George Strother] "XDCAM HD blueray cameras (330/350/etc) have 1440 by 1080 chips, correct?"

This is also correct. That's why one of the other EX shooting modes is 1440x1080, which is designed to match footage shot with the other XDCAM HD cameras. You may have some luck by trashing the Sony Transfer Tool preference file and see if that solves it. Other than that, I wouldn't be able to offer any more suggestions because, like I said before, I'm still using the earlier version of the Sony Transfer Tool.

Sorry for not being able to offer more help.

- Don



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Rafael Amador
Re: Thinking twice
on Apr 22, 2008 at 6:18:57 pm

I'm working with the XDCAM Tranfer 2.5.1 (QT 7.4.5) and no problems downloading directly.

Mac OX 10.5.2-FC 6.02-QT 7.4.1
G5 2x2Gh 4GbRAM-BlackMagic Extreme
PMBP 17"Core2Duo 4GbRAM-AJA ioHD
JVC DTV-17"
SONY EX-1 . SONY PD170
..and always a big mess on top of the table.


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George Strother
Re: Thinking twice
on Apr 22, 2008 at 10:08:39 pm

I don't have an XDCAM camera, I only have files on a drive. I think something may have been set wrong when these files were transfered and I would be surprised if the originals still exist.

If I can't get XDCAM transfer to see them as EX files I may just have to scale them.

Thanks for all of the input.

George
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