Strange distortion problem viewing ripped PAL DVD @1080i
Posted: 23 Nov 2016 16:37
I ripped PAL DVDs of "The Killing" (Region 2) and am watching them with a Windows 7 Media PC connected to a recent vintage Vizio TV via HDMI. (I don't have a region-free DVD player, so this seemed like a reasonable way to do it.)
The playback has a very strange bit of distortion. The video being played from the TS/VOB file on the TV is slightly stretched in a vertical band that stretches from maybe the 40% point on the X axis to the 60% point of the screen.
The stretched video is not a huge distortion, and in many scenes it is difficult to even detect. However, you can consistently see that in the subtitles, the letters in the middle of the screen are a bit wider than those on either edge, and spaced a little more widely.
The distortion is very noticeable any time the scene pans and something moves across the area of distortion.
I should stress that I don't think this has anything to do with VLC, because I can view the same file on my computer and it looks just fine.
I've never heard of this kind of distortion and have no idea what might be causing it.
The ripped video is 25 fps PAL with a pixel format of 720x576 and a SAR that generates a 1024x576 16:9 picture.
I'm guessing that the Windows video driver is somehow trying to compensate for some mismatch and doing a poor job of it, but I really have no clue as to what is going on.
Anyone have any good ideas about this?
- Mark
The playback has a very strange bit of distortion. The video being played from the TS/VOB file on the TV is slightly stretched in a vertical band that stretches from maybe the 40% point on the X axis to the 60% point of the screen.
The stretched video is not a huge distortion, and in many scenes it is difficult to even detect. However, you can consistently see that in the subtitles, the letters in the middle of the screen are a bit wider than those on either edge, and spaced a little more widely.
The distortion is very noticeable any time the scene pans and something moves across the area of distortion.
I should stress that I don't think this has anything to do with VLC, because I can view the same file on my computer and it looks just fine.
I've never heard of this kind of distortion and have no idea what might be causing it.
The ripped video is 25 fps PAL with a pixel format of 720x576 and a SAR that generates a 1024x576 16:9 picture.
I'm guessing that the Windows video driver is somehow trying to compensate for some mismatch and doing a poor job of it, but I really have no clue as to what is going on.
Anyone have any good ideas about this?
- Mark