Using per frame conditional filtering

Access violation... 

(@sh0dan). Trying to use the new ConditionalFilter, I cannot get it to work. The conditional statement always returns an access violation error, except if I deliberately put in bad parameters (for example: try to use AverageLuma for RGB space). Here is my script, 'TestArea' and 'Video' are returned as expected, 'FixVid' has the error reported as I have shown below. Video = AVISource("e:\VD capture\CAM01 Comp VCRstab.avi") Video = FlipVertical(Video) # Flip the video upside down to correct for MJPEG decoder Video = AddBorders(Video,0,1,0,0) # Add one black line at the top of the frame TestArea = ConvertToYV12(Crop(Video,0,0,260,200)) # AverageLuma function can only deal with YV12 FixVid = ConditionalFilter(TestArea,Subtitle(Video,"1ST CLIP"),Subtitle(Video,"2ND CLIP"),"AverageLuma()","LessThan","10") #Return(TestArea) #Return(Video) Return(FixVid) # Avisynth: caught an access violation at 0x025ea268 attempting to write 0x03471210 I know this is very new stuff, but I thought you should know. The return size of the error video is the same size as the 'TestArea' clip, not the size of the 'Video' clip, which I found a bit strange. Thanks :) OK... some more info has come to light (ie: I am playing with it). I tried your sample script for selecting a frame number, and it worked fine. So I dug. It seems as though the test clip and the two source clips have to be the same size. Obviously for the two sources, but the test???? Also, it appears all 3 clips have to be in the same colour space or it will not work. Anyway, my kludge to fix my current problem was to use StackVertical & StackHorizontal to return my small test area to full size, convert all clips to YV12, and back to RGB at the end, and it works great!! This is going to save me weeks!!! (actually, without it, I probably would not even have tried!) Much appreciated :)

Yes - the two source clips must be exactly alike - however previously the testclip also had to be the same as the two sources. This is now fixed in a new binary. There is also proper error handling now. Sorry for the inconvinience.

Thanks for the update to fix the size of the test clip. Still a bug though, the output clip size is that of the test clip, not the size of the two source clips! Also, there appears to be a bug in the code (both this last build and the previous one I got containing the ConditionalFilter, maybe others as well) that brings up an "Unrecognised Exception" whenever I try to do any type of resize. An earlier version I have (v2.07) does resize OK. Thanks for your efforts :) I am finding ConditionalFilter exceptional.

Using conditional filtering 

This subject has been quiet for a couple of weeks, and I have got no feedback on my posts to the other threads on conditional filtering. One was a bug that was introduced somewhere, probably not to do with conditional, but was in the CVS that had the conditional filter in it. "resize" does not work with any settings. The other is a comment on ConditionalFilter, and perhaps someone in the know would like to address it while it is still experimental and can be changed... I can do effectively the same thing with 1) ConditionalFilter(testclip,sourceA,sourceB,"AverageLuma()","<","128") 2) ConditionalFilter(anyclip,sourceA,sourceB,"AverageLuma(testclip)","<","128") The only difference is that *if* "testclip" (or "anyclip") is a different size to "sourceA" ("sourceA" same size as "sourceB") the output of the filter is the size of "testclip". Since syntax "2" is possible, why not have the general syntax for conditional filter to be... ConditionalFilter(sourceA,sourceB,<test_expression1>,<condition>,<test_expression2>[,true

A new function "ScriptClip" is introduced: Syntax: ScriptClip([clip], "Script"[, show=true/false]). This function further extends the possibilities of conditional filtering. A simple example: Code:

1) ad "selection of properties": Why should the sound come from the testclip? Most of the current multi-clip-filters use Source1 as "default". 2) Is there a reference to the framenumber in ScriptClip? 3) So ScriptClip is some kind of generalisation of ConditionalFilter or what else are the pros/cons?