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Asmodian · 4th May 2018, 07:33

Don't get stuck trying to understand matrix and primaries separately. All color space converting functions I have used change everything needed as one operation, ColorMatrix included.

Primaries are what color 100% Red, 100% Green, and 100% Blue are. This is obviously dependent on the screen, it is always 100% R, G, or B. However, if our display is BT.709 (very likely today) and the content was meant to be watched on a PAL TV we want to covert it so it looks correct on our display. Simply do a ColorMatrix conversion in AviSynth.

Edit: I don't actually know what a Shield does with SD or HD video. Does is simply assume everything is BT.709? Does it respect the flags in the source? Does it assume SD is BT.601 and HD is BT.709? It might take some testing with some colorbar encodes, there is no solution that would work for all possibilities.

4th May 2018, 07:33	#5 \| Link
Asmodian Registered User Join Date: Feb 2002 Location: San Jose, California Posts: 4,407	Don't get stuck trying to understand matrix and primaries separately. All color space converting functions I have used change everything needed as one operation, ColorMatrix included. Primaries are what color 100% Red, 100% Green, and 100% Blue are. This is obviously dependent on the screen, it is always 100% R, G, or B. However, if our display is BT.709 (very likely today) and the content was meant to be watched on a PAL TV we want to covert it so it looks correct on our display. Simply do a ColorMatrix conversion in AviSynth. Edit: I don't actually know what a Shield does with SD or HD video. Does is simply assume everything is BT.709? Does it respect the flags in the source? Does it assume SD is BT.601 and HD is BT.709? It might take some testing with some colorbar encodes, there is no solution that would work for all possibilities. __________________ madVR options explained Last edited by Asmodian; 4th May 2018 at 07:44.