[Vedat Kiyici]

Makes sense..:)
Thanks a lot Andy
cheers

Vedat

[Vedat Kiyici]

OK, so here’s my test results:
I exported both 720×576 movies (the one that’s 45 cropped and the one that’s 62 cropped) as 960x576px size movies. (My calculation of 1024px=16 ==> 15=960px)
And then I exported these as 1024×576 by preserving aspect ratio by letterboxing.
The result: The movie that’s cropped 31 on each side looked like it had the right aspect compared to the original movie that’s exported as 1024×576
In saying that there’s quite a bit of degradation in pixel quality and movement after one pass of cropping. The movie looks better if it’s converted to 1024×576 and then cropped.
Does this make sense?

[Vedat Kiyici]

No need for apologies. 🙂 Thanks for the information.
I did a test by exporting the clip from FCP as 16X9 and then cropping it. The result was cropping by 31 on each side.
I also did it the way you suggested. Now, I don’t know which way to go since I don’t have a way of monitoring 15×9. I suppose I could make them 16×9 by adding bars and see which one looks closer to original.

Cheers

[Vedat Kiyici]

Hi Andy here’s my input video specs:

Encoded Bounds: 720×576
Display Bounds: 768×576
Pixel Aspect Ratio: PAL CCIR 601
Native field dominance: Top first
Frame Rate: 25

And this is what the compressor is doing:

Format: QT
Width: 720
Height: 576
Pixel aspect ratio: PAL CCIR 601
Crop to: Center crop for 1.66:1
(L: 0, T: 56, R: 0, B: 56)
Padding: None
Frame rate: 25
Frame Controls: Off
Codec Type: Uncompressed 10-bit 4:2:2
Multi-pass: Off, frame reorder: Off
Pixel depth: 24

I think I know what’s going on here now. My input video’s pixel aspect ratio should be saying PAL CCIR 601(16×9)
How could I change that? I can’t see how to set that while digitizing.
What’s the correct cropping values for left and right?
If I input the correct crop values would I essentially achieve the same results?

cheers for all the help

[Vedat Kiyici]

Hmm. This setting crops top and bottom. Shouldn’t I crop the sides?

[Vedat Kiyici]

Hey Andy thanks for the tip. One question though:
What should be the pixel aspect selection on that window? Should it be PAL CCIR 601, PAL CCIR 601 (16×9), or custom?
The footage is Anamorphic 720×576 Uncompressed PAL
cheers

Vedat

[Vedat Kiyici]

QT does not let me change the aspect, just the size.
Am I missing something there?

[Vedat Kiyici]

I have had excellent results using compressor. Make sure you check your settings as described in that link and you’re on lower field dominant on the output. In saying that though if there’s graphics in conjunction with fast movement in picture, the graphics get distorted and pixelated in a weird way. This does not happen all the time and it’s un-predictable.
I tested the Nattress but haven’t found it better than compressor’s output. Nattress results are very soft and film like compared to crispness of compressor. Maybe I am doing something wrong.

Oh, and all this using Uncompressed 10 bit video.

[Vedat Kiyici]

Well. I have received this for an overseas delivery requirement for a sports show. They want 16×9 and 15×9 dubs of the program. I was surprised as you guys are that it is 15×9. I have no other details of where it’s gonna end up. If that’s what they want I need to find a way to do it. Thought this is the best place to find an answer.
I don’t have After Effects but could invest in it, if it’s the way.
Cheers

Vedat

[Vedat Kiyici]

It’s a requirement.