Avisynth command to change aspect ratio

[pooksahib]

Hi. I have a 1280x720 wmv which I have to script with avspmod/DirectShowSource. (It's one of those wmv's that MeGUI doesn't like.) The vid is in 16:9 but should really be 4:3.
Had I been able to use MeGUI to index/script it, changing the AR would be easy, like this:
global MeGUI_darx = 4
global MeGUI_dary = 3
but that command doesn't work when I open the avspmod script in MeGUI.

Is there a command I can use? Googling it has failed me. Many thanks.

[pandy]

Avisynth don't care about aspect ratio - aspect ratio is for video codec. Your encoder should set proper flag.

[pooksahib]

Thanks, pandy. A tool called WMVARChanger set to 3:4 has corrected the vid.

[jagabo]

Or you could just change the frame size to a 4:3 ratio in your AviSynth script. Something like

Spline36Resize(960,720)

[pooksahib]

That's good...