[HELP] AviSynth 32 bit - ColorMatrix filter not working for video?

[The_Tinkerer]

Let me try to show what is happening to me using 256 color animated gifs. It does at least show in general what is happening to me. It's probably best to right click the images and open them in a new tab, to show them at original size. Pay attention to the colors in the video (image).


Here's the video file (ColorTest.mp4) in AviSynth. I'm toggling the ColorMatrix filter itself off and on. On my system, it has no effect:





Here's the same video file in VapourSynth. Again, same ColorMatrix filter settings, toggling off and on. The color pallette shifts like it's supposed to:





Finally, here's the image (Test-AdobeRGB.png) that was used to make the above video file in AviSynth, loaded as an image stream. Again, same settings for ColorMatrix. Toggling the filter shows it works and shifts the color pallette:



So, the problem for me on my system, is that the AviSynth ColorMatrix filter is NOT working for VIDEO file (in this case .mp4) input.

Can you confirm, that when you load ColorTest4.mp4 into Hybrid, open the AviSynth previewer, and then toggle the ColorMatrix filter on and off with the above settings, if you see the same thing that is shown in the first gif? Or do you see something more like the third gif?

I tried running jobs and saving video files, and what is shown in the previewers is what renders to the output files.