#211 Aspect ratio messed up and can not be corrected

[John Clement]

There is a problem with aspect ratio handling. There are a nmber of videos available which are in aspect ratio 4:3, with size 720x480, and the VOB correctly specifies the ratio. When using IVTC to detelecine VD assigns the aspect ratio of 3:2 which is not correct. The output was Lagarith. This could be fixed if there were a method for specifying the aspect ratio, but I could not find such a method. This also happens when I use Avisynth to detelecine a balky nonstandard video. The resize option can not fix this problem. Anamorphic 720x480 with aspect ratio 4:3 is a standard which should be supported. I have not tried it, but I assume 16:9 would have the same problem.

[John Clement]

I have tried the plugin labeled "Aspect Ratio" MMX, and it causes VD to crash. The Change size can only change size or letterbox the video. It can not set the aspect ratio to have a standard anamorphic 4:3 or 16:9 video with frame size 720x480. A simple internal fix would be a single filter to set the desired "Display aspect ratio". It could be included in the size filter, but that filter is already a bit confusing. I suppose an extra option to set aspect ratio without changing the frame size would be satisfactory.

This problem has been around for a while and a number of individuals on other web sites have asked how to fix it. Most replies give answers that are unacceptable.

[Anton Shekhovtsov]

The filter to change AR is good idea. Currently you can only control AR in few ways:
change display to certain AR with context menu
type output AR in x264 config dialog
include it as part of command line for external encoder