SvennoJ said:
Wildcard36qs said:
Of the uncompressed 4K movies I have they average 50+ Mbps. I have some files that are 100Mbps average. I know that Netflix recommends a 25mbps for 4k HDR streaming. That is a huge quality difference. Don't get me wrong, 4K HDR streaming looks amazing, but once you see an actual UHD clip uncompressed, it's just in another league.
|
Uncompressed chroma subsampled 4K video at 24fps is 1.22 Terrabyter per hour.
At 100mbps you're looking at 44 Gigabyte per hour.
Netflix 4K HDR is 18mbps or 7.9 Gigabyte per hour.
Netflix 4K standard is 15mbps or 5.5 Gigabyte per hour.
I highly doubt you have seen uncompressed 4K video. Let alone 4:4:4 video, not color compressed, as the first step is to reduce color resolution to 1920x1080 by chroma subsampling. 2.44Tb per hour for 10 bit 24fps full color 3840x2160 video, that's 712 MB/s. SATA 3 maxes out at 600 MB/s. It's not possible!
|
You are correct. It is 4:2:0 10 bit using HEVC, so yes, there is chroma subsampling.
