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Old 26th November 2011, 11:13   #16  |  Link
TheSkiller
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Join Date: Dec 2007
Location: Germany
Posts: 632
Quote:
Originally Posted by vampiredom View Post
Code:
480x480 -------------------------------------------> PAR = (15/11)
        --- image appears extremely squeezed ------> PAR = (50/33)
480x576 -------------------------------------------> PAR = (295/216)
        --- image appears ridiculously squeezed ---> PAR = (295/162)
Please let me know and I will revise it.
Sorry, those numbers are wrong, exept the first one. You forgot that PAL has 576 lines, not 480.

For example: (NTSC wide)
40/33 * 1.5 = 60/33

Now the test:
720 * 40/33 = 872.72
480 * 60/33 = 872.72

As you can see the 60/33 PAR is giving the same result for the 480 video as the 40/33 PAR does for the 720 video.

PAL:
59/54 * 1.5 = 177/108
...and so on.

It should look like this:

Code:
480x480 -------------------------------------------> PAR = (15/11)
        --- image appears extremely squeezed ------> PAR = (60/33)
480x576 -------------------------------------------> PAR = (177/108)
        --- image appears ridiculously squeezed ---> PAR = (177/81)

Last edited by TheSkiller; 26th November 2011 at 11:21.
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