Hi!
I got a job to convert a Prores Hq -videofile to a mxf-file. Here's the target file specifications:
XDCAM HD422 50Mb/s mxf OP1a file
1920 by 1080/50i
25fps PAL
Interlaced
Upper field first
I'm using XDCAM Transfer -plugin in Final Cut Pro 7. How do I make sure that the file is interlaced?
Thanks in advance!
Confirming that your file is interlaced simply takes manual inspection provided that you are viewing the file in an application that allows you to see both fields (I usually use QuickTime Player 7 with the window at 100%).
In areas of motion, the combing of the picture due to interlaced fields should be obvious.
As for verifying that the fields are displaying in the correct order (upper field first), you will need to use something like After Effects to advance through the footage one field at a time (inspecting the footage as you go to make sure that the fields are in the correct temporal order). That, or play the footage out to a HDTV at 1080i50. If there is no jitter, then your fields are in the correct scan order.
So, you're going from ProRes to XDCAM, not the other way around? (Just curious.)
If for for some reason you are not trusting the results you are getting with the XDCAM Transfer plug-in, Adobe Media Encoder has presets for OP1a.
-Warren
Thank you! This file is for broadcast and I have a progressive Prores Hq file, which I need in interlaced mxf-format. I used Adobe Media Encoder to convert the Prores file to MXF Op1a -format with a XDCAMHD 50 PAL 50i -preset and field dominance of upper field first.
This is what VideoSpec is telling me. I premuse this is correct format?
Peter:
Is your Apple ProRes 422 (HQ) file p25, p50, or i25 (i50)? If so, your conversion should be ready to broadcast as far as the picture is concerned.
If it's p24, p23.976, i29.97 (i.59.94), or p30, you should take an extra close look at it to make sure it plays smoothly as you've just remastered the frame rate in the conversion process.
Also, do the audio channels look like what you were expecting? The screen shot shows mono. For broadcast, I've delivery stereo mixes as well as dual mono (channel 1 dialog and channel 2 music and effects).
-Warren
Prores 422 HQ -file is p25 and it came back from the broadcaster that it needs to be interlaced. I took aa extra close look like you said and I think the file is good to go now after the mxf-conversion. The audio is in dual mono in mxf and I think because of that it shows as mono in VideoSpec.
These are the audio settings from Adobe Media Encoder when I encoded the file. It should be correct?
Going from p25 to i25 is fine (the only thing better would be i25, to i25). It's worth noting that there will be no temporal difference between fields; however, it should pass for broadcast (and, more importantly, play back well).
Your audio looks good. Send the file over and report back!
-Warren
Thank you very much for the help! Will report back.
The file came back with an error: "This video needs to be redelivered. MXF and XML incodes do not match".
Do I import the mxf-file to a project and then take a xml-file of it?
Or do I export the xml -file at the same time as I export the mxf? Then I think it links to the Prores-file.
This is the specs:
"Files will be delivered to VIMN complying with the Sony XDCam HD422 50Mbs format together with an xml complying with the Final Cut Server format."
Thanks for the help!
Hi Peter:
Did you ever find a solution for this? I don't use Final Cut Server, but I know a few people who do.
The XML is just a side car file allowing for information to be included with the MXF file. I would think that you want the XML to be generated when the MXF file is made.
-Warren
Prores Hq to Mxf
