From Premiere -> AE -> Premiere Problem.

S

sletts02

Member
I have made a new widescreen project in Premiere Pro 2. It has a pixel aspect ratio of 1.422.
Now, I want to import it in to After Effects 7 for some basic colour grading. When I do, the whole picture is out of wack, it looses it's widescreen'ness

And then when I export my After Effects 7 video to uncompressed AVI then import in to Premiere it says the pixel aspect ratio is now 1.067

I've tried importing the Premiere file straight in to After Effects and also saving the premiere file as an uncompressed avi and importing it in to after effects, neither make a difference


How do I make it all consistent with the Premiere Pro? Here are some screenies of what's happenign

Premiere Project:
http://img160.imageshack.us/img160/4126/premierefu1.jpg

After Effects Composition
http://img248.imageshack.us/img248/2159/aevg1.jpg

Example of the ratio being warped between the two programs
http://img249.imageshack.us/img249/4647/exampleproblemmd1.gif


Any help is greatly appreciated :D





Code: 
General
 Editing mode: DV PAL
 Timebase: 25.00 fps

Video Settings
 Frame size: 720h 576v (1.422)
 Frame rate: 25.00 frames/second
 Pixel Aspect Ratio: D1/DV PAL Widescreen 16:9 (1.422)
 Fields: Lower Field First

Audio Settings
 Sample rate: 32000 samples/second

Capture Format
 DV Capture

Video Rendering
 Maximum Bit Depth: Off
 Preview File Format: DV PAL
 Compressor: DV PAL
 Color depth: Millions of colors
 
In your AE Comp window, down at the bottom where all the toggles and switches are, click the button that's just to the right of the dropdown that says "1 View". That is the aspect ratio correction button. Your video file is 720x576, and to make it widescreen, the pixels are rectangular (wider than tall). However, the computer display is only capable of showing square pixels, which results in the horizontal squeeze you're seeing. If you click the aspect ratio correction button, AE does the math and figures out how many pixels it needs to add in horizontally to make your image look correct.

As far as why your image is wonky on export, it's more than likely a fault in your render settings. Your comp is setup properly, but that doesn't dictate how files are actually render. All kinds of unpredictable badness can take place in the render settings, so review those and make sure you're set to render to a widescreen DV file.

Hope that helps...
 
I got it looking correct in After Effects, thanks.

However, there is still the problem of a shotty export. Every time I import to Premiere Pro the aspect ratio is always 1.067 :S! Frustrating!

Is it possible to tell AE to export as a certain ratio? I've tried:

Uncompressed AVI
DVPAL AVI -> 25 FPS, 16:9, Interlaced
.MOV H.264 -> Everything auto


Is there any way to check (not in Premiere) if it's actually exporting as 1.067 and not 1.422 and not Premiere fudging it up?

Thanks :D
 
Fixed it... I clicked "Make Movie" then I could change all my export settings there. I didn't even know it existed! Haha... quality teaching at my school :(

Thanks for your help cbrougham!
 
Welcome to the mind-bending worlds of After Effects and pixel aspect ratios. It's a little strange over here :D

Glad you got it working!
 
if you have dynamic link, you can avoid all of the issues of PPRO -> AE export/import by just creating a new dynamically linked AE project from PPRO. it will be created with all the same settings as your PPRO project. then you can either import the PPRo project into the AE comp, or you can just copy your PPRo timeline to the AE comp. from there theres no reason to render out of AE unless it is your final output. you just drop the new linked AE comp into your PPRO timeline withn PPRO. the only setback of this method is that the linked AE comp will not be editable as seperate clips and such but will be flattend into one precomposed clip on your PPRo timeline. but if you are doing your CC last as far as the edit of the section is concerened, it doesnt matter.

however, i do agree that PPRO has some nice color correction tools to the extent that corretion in AE isnt really necessary most of the time.
 
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