Interpret footage automate?

[Dave Friend]

[jimmybee500] “Targas cannot hold any pixel aspect info can they?”
Not as far as I know. PSD is the only format that I’m aware of that does. Could you use those, using a transparent background instead of an alpha channel? PPro will see the transparency for what it is – transparent.

Dave

[Jimmy Brunger]

Hadn’t thought of that…might try it. I do like to keep my finished flattened files separate to my COMPd PSDs though and an easy to tell between them in explorer is by filetype. We sometimes use a DVS clipstation to share files aswell, so it needs to be a file sequence, it won’t read PSDs. Can you PSD sequences btw?

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[Dave Friend]

[jimmybee500] “Can you PSD sequences btw?”

Good question. Have not tried it myself but it should work.

You could always use the old trick of creating the PS at 720×540 (NTSC) and then, save to TGA, then do a constrained resize to 720×480 (I assume a DV project) on the TGAs. Then, even though PPro will see a PAR of 1.0 it should display correctly. I think this will work but I may have thought too hard about this and confused myself.

Dave

[Steven L. gotz]

If you have a 720X534 it sees it as square pixels and it will look right. If you make it 720X480, it should see it as 0.9PAR.

Steven
https://www.stevengotz.com

[Dave Friend]

[Steven L. Gotz] “If you have a 720X534 it sees it as square pixels”

Just curious, how did you come up with that size? 720×540 has a 4×3 aspect ratio and is the dimension provided by the Photoshop CS NTSC D1 Square Pix new file preset.

Dave

[Steven L. gotz]

I don’t shoot D1. Do you? D1 is 720X486 I believe, whereas DV is 720X480. Where does 534 come from? Well, divide 480 by 0.9 and you get 533.333333333 which rounds up to 534.

Now, if you do the same thing to 486, you get 540.

Make three PSD or TGA files. One at 720X540 square, one at 720X534 square, and one at 720X480 0.9PAR. Put each on the same sequence, select each one at a time in the program panel to activate the motion effect outlines, and you will see that the one that fits exactly is the one that is 720X480 with 0.9PAR right out of Photoshop.

Steven
https://www.stevengotz.com

[Jimmy Brunger]

I work with Digibeta footage via SDI in PAL (720×576 @ 1.44par for 16:9)

I think I’d rather keep my PSDs, etc at 720×576 at the correct PAR, otherwise it will screw up my decklink output for AE/PS, etc.

Thanks for the input though..I’ll stick with interpreting each sequence as I being it into PPro for now! Post on here though if anyone thinks of a more elegant way to automate this..

It’s a shame PPro doesn’t do actions or something similar to PS, then I could just assing a hotkey to do it each time.

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[Dave Friend]

Thanks Steve for taking the time to respond. Your assertions are absolutely correct.

[Steven L. Gotz] “I don’t shoot D1. Do you? D1”

Actually, Yes I do. I still do a large amount of work on Discreet and Avid systems from Beta sources. Years of using these systems has made the 720×540 starting point an unquestioned habit.

If I think back a few years to when I was using FCP for DV format work I do remember using 720×534 as the starting point for PhotoShop graphics. At the time PhotoShop didn’t have the pixel aspect ratio feature so using an unconstrained resize was SOP. Since the introduction of PhotoShop CS I have been using the DV preset and just plain forgot about “the old ways”.

Thanks for reactivating some old neurons.

Dave

[Pentti Kakkori]

In PPro you can Shift-Click all your wrong PAR-sequences and interpret them all together. Not exactly automation but little quicker than AE’s Remember Interpretation> ShiftClick> Apply Interpretation.

[Jimmy Brunger]

Thanks Pena, that will help quite a bit actually.

*Production Studio Premium / *Combustion 3
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Win XP Pro SP2 / Intel P4 3GHz / 2GB RAM / GeForce FX5200 / DeckLink Pro / Sony BVM-20G1E / DVS SDI Clipstation / 110GB boot/80GB media/600GB RAID-0