Viewing input and output in VD

[stephen22]

When I load a wmv file into VD using

import ("C:\Users\me\Videos\Avisynth\ffms2.avsi")
loadcplugin ("C:\Users\me\Videos\Avisynth\ffms2.dll")

I have a choice of viewing either the input video or the output, but not both together. Is this a problem with the plugins or virtualdub? Is there a workaround other than first converting to avi?

[raffriff42]

The Output preview pane in VirtualDub shows changes made by VirtualDub's own filters and timeline edits - not Avisynth's. When all processing is done in Avisynth, having two preview panes is pointless - both will show the same thing. Because of this I always select the Output pane only, using View menu, Pane Layout.

To see changes made within your script, you have to do something like:A=FFmpegSource2("example.wmv")
B=A.ExampleFilter()
StackHorizontal(A, B)Sometimes Interleave is better than Stack for judging subtle color corrections, etc:
(when used in frame step mode - not real time) A=FFmpegSource2("example.wmv")
B=A.ExampleFilter()
Interleave(A.Subtitle("before"), B.Subtitle("after ExampleFilter"))

[stephen22]

Thanks Raffriff that's helpful.

Actually I was just using Avisynth for conversion purposes (from wmv) and wanted to see the effect of vd's filters.

I've solved it - I just updated vd to 10.1.4 and now both panes are active.