3 ms·
ATSC only allows 4:2:0 in MPEG-2 (ATSC A/53 part 4 section 6.1.3) or H.264 high profile (which is restricted to 4:2:0). I'm admittedly not familiar with other
by brigade 15y ago
ATSC only allows 4:2:0 in MPEG-2 (ATSC A/53 part 4 section 6.1.3) or H.264 high profile (which is restricted to 4:2:0).
I'm admittedly not familiar with other countries, but I would be incredibly surprised if any of them allowed 4:2:2.
- jpdoctor 15y agoThank you, you are correct. I've assumed that the video settings of the server is what they were delivering, but there must be a down-sample on the way to the transmitter. (Cablelabs is the other large distribution format that we encounter, which yields the same story.)