2015-10-23, 17:20
(2015-10-21, 16:20)XTrojan Wrote: I just checked wiki, if i understood correctly, MadVR will upscale everything? Rec 2020 is stated to be everything (Bitdepth, colorspace, chroma subsampling). Which is -> 10bit, RGB32, 4:4:4. (Standard Blu-Ray being 8bit bpc, YUV, 4:2:0)
Quote: HDMI 2.0 supports the Rec. 2020 color space.[16] HDMI 2.0 can transmit 12-bit per sample RGB at a resolution of 2160p and a frame rate of 24/25/30 fps or it can transmit 12-bits per sample 4:2:2/4:2:0 YCbCr at a resolution of 2160p and a frame rate of 50/60 fps
I'm not sure if MadVR is touching bitdepth and colorspace. But chroma does get scaled to 4:4:4. I'm not sure what 10bit dithering is...
madvr allways upsample chroma to 4:4:4 and then converts YCbCr (4:4:4) to RGB. All this is done in 32 bit floatting point and stored in 16 bit integer. In the end 16 bit is dithered to the bit depth you have selected.
i.e. 1080p YCbCr 4:2:0 means chroma resolution is 960*540 so madvr upscale that to 1920*1080 with chroma upscaling algo you have selected (this upsample 4:2:0 to 4:4:4). Once YCbCr (4:4:4) -> RGB conversion is done image is upscaled to 4k with image upscaling/doubling algo. Finally it dithers from 16 bit to bit depth selected and with dithering algo you have selected.
