These pictures has different aspect ratio. Looks like ffdShow gives this information to renderer, but AVSF - is not.
You need to check what frame size has source video and compare it to both pictures. What picture is most similar to source?
Can you show MediaInfo for this video clip?
Also you can look into SVP log to get more numbers about frame size changings.
SVP menu Information > Events log:
22:52:40.033 (I): Media: video 1280x720 [PAR 1.000] at 30.000 fps (via video player)
SVP menu Information > Additional information > Last generated script:
smoothfps_params = "{rate:{num:2,den:1},block:true,algo:11,scene:{blend:true,mode:0},light:{aspect:1.6,lights:10,border:16,length:120,cell:1}}"