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Old 2nd February 2023, 23:29   #1  |  Link
hello_hello
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Join Date: Mar 2011
Posts: 4,814
Compare oddity

The Avisynth wiki says Compare() only supports RGB24, RGB32, YUY2 and YV12.

I couldn't find any changes in the Avisynth+ version history to indicate that had changed, but it does seem to support unsupported formats (Avisynth+ 3.7.2 on XP). For example these seem okay.

Code:
Compare(BlankClip(Pixel_Type="YV411"), BlankClip(Pixel_Type="YV411"))
Compare(BlankClip(Pixel_Type="YUV422P16"), BlankClip(Pixel_Type="YUV422P16"))
However this results an error message:

Code:
"Convert: Input chroma placement only available with 4:2:0 or 4:2:2 sources"

Compare(\
BlankClip(Pixel_Type="YV411").propSet("_ChromaLocation", 0), \
BlankClip(Pixel_Type="YV411").propSet("_ChromaLocation", 0))
Also specifying a log file seems to control whether the graph displays, while show_graph does nothing.

Code:
Compare(A, B, show_graph=false)                       # displays the graph
Compare(A, B, logfile="compare.log", show_graph=true) # doesn't display the graph
And while I'm here, the ColorBars/ColorBarsHD staticframes argument seems not to work.

Code:
ColorBarsHD(staticframes=true) # 1 hour video with lots of frames
ColorBarsHD(staticframes=false) # 1 hour video with lots of frames
Cheers.
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