outlyer
5th April 2002, 03:40
this have been asked before, maybe, but I wasn't able to find it searching, so let me ask:
I use GK to calculate aspect ratios and resizings, not only for DVD rips (for downloaded videos too, I mean). I've found that when the input is not full dvd resolution, different aspect ratios are shown for PAL and for NTSC, I mean, if I first select NTSC, then other and then introduce the resoultion, the AR is different as if I do the same but with PAL (and the same resolution).
If is not clear: with an original video at 352x240 (VCD NTSC resolution, which I usually convert to VGA 1:1), going the NTSC way, the display AR shown is 1.304 (I'm treating it as 4:3, as it's its correct AR) and final resolution is 352x272. Going the PAL way, display AR is 1.564 and final res. is 352x224. (Using a multiplier of 16x)
No one of them is 1.333 (real 4:3), so I'm really confused:
- should I use the source's corresponding format (easy to guess, I know)?
- or should I maybe manually get the correct dimensions for "real world" 4:3 (height*1.333)?
:confused:
Thanks in advance (and sorry for my bad English)
I use GK to calculate aspect ratios and resizings, not only for DVD rips (for downloaded videos too, I mean). I've found that when the input is not full dvd resolution, different aspect ratios are shown for PAL and for NTSC, I mean, if I first select NTSC, then other and then introduce the resoultion, the AR is different as if I do the same but with PAL (and the same resolution).
If is not clear: with an original video at 352x240 (VCD NTSC resolution, which I usually convert to VGA 1:1), going the NTSC way, the display AR shown is 1.304 (I'm treating it as 4:3, as it's its correct AR) and final resolution is 352x272. Going the PAL way, display AR is 1.564 and final res. is 352x224. (Using a multiplier of 16x)
No one of them is 1.333 (real 4:3), so I'm really confused:
- should I use the source's corresponding format (easy to guess, I know)?
- or should I maybe manually get the correct dimensions for "real world" 4:3 (height*1.333)?
:confused:
Thanks in advance (and sorry for my bad English)