Best way to compare M2V files from avisynth

[troy]

I want to do some tests using Avisynth filters and compare the results. I need to be able to compare the M2V files. My source is interlaced DV from my camcorder. I guess I could put all these m2v files onto a dvd and play them on my computer with windvd but I wish there was an easier way. I can play these with windows mediaplayer but the quality of these interlaced files on mediaplayer is always bad and I can not get a specific frame and capture it so I can compare my different m2v files.

[Richard Berg]

# Something like this...

# Use DVD2AVI to parse your m2v files
a=Mpeg2Source("file1.d2v")
b=Mpeg2Source("file2.d2v")

# Depending on what you mean by 'compare,' this may be undesirable
a=a.reduceby2
b=b.reduceby2

# Visual compare
return StackVertical(a,b)

# Algorithmic noise compare
#return Compare(a,b)

[digitalman]

I find the way below to work very well. I got this from another post in this forum, but I don't remember where. In your case, you could use DirectShowSource instead of Avisource, or as he said, frameserve with DVD2AVI and use the plugin MPEG2DEC3.dll.

a=AviSource("file1.avi").FilterA()
b=AviSource("file1.avi").FilterB()
StackHorizontal(a,b)

Another Example:
a=AviSource("file1.avi").Convolution3d(preset="movieHQ")
b=AviSource("file1.avi").FluxSmooth()
StackHorizontal(a,b)