DV PAL WS size?

UlfLaursen wrote on 5/1/2010, 12:23 AM

Hi

What pixel dimensions is correct for DV PAL WS? I thought for a long time that it would be 1024 x 576, but when I take save a screenshot, my PS tells me it is 1049 x 576.
I know it has something to do with the PAR, but I'm not that good at this stuff, so maybe someone could explain this part of it?

Thanks.

/Ulf

Comments

Grazie wrote on 5/1/2010, 12:43 AM

http://www.sonycreativesoftware.com/forums/ShowMessage.asp?ForumID=4&MessageID=522961One of my favourites from 2007! Read and weep . . .. read . .and weep . . [/link]

Grazie

farss wrote on 5/1/2010, 2:21 AM

And well Vegas gets it wrong even though it's right mathematically because all video dimensions must be even numbers so it should be 1048x576, not 1049x576.

Bob.

NickHope wrote on 5/1/2010, 4:24 AM

I use PAR 1.4222

Jøran Toresen wrote on 5/1/2010, 12:23 PM

Ulf, there is no definitive answer to your question. The “correct” number of horizontal pixels depends on the application you use. Some examples: In Vegas and VirtualDub the “correct” answer is 1048 x 576 pixels. In Adobe Premiere (Elements) the “correct” answer is 1024 x 576 pixels. In general: the number of horizontal pixels is equal to the pixel aspect ratio (PAR) used in the application you are using, multiplied by 720 (for PAL DV). Se my first post in the thread Grazie linked to.

Jøran

Chienworks wrote on 5/1/2010, 12:39 PM

Bob, yup on the even numbers.

I remember being very amused when i wrote that map-line making program and got chastised for making the output 654x480 instead of 655. Both numbers are almost equally wrong, but at least 654 is even.

UlfLaursen wrote on 5/1/2010, 12:40 PM

Thanks guys - much wiser now.

/Ulf

Lou van Wijhe wrote on 5/1/2010, 7:30 PM

I also found this illuminating:
http://www.bbc.co.uk/commissioning/tvbranding/picturesize.shtml

Lou