On October 1, 2006 at 13:55, shlampen said...
As far as I know, there is no common delivery mechanism
for 1080p. That's progressive 1080. 1080i is a standard
format. That you can get off-air, from cable, and (only
recently) from HD-DVD or BlueRay disc.
You can use a component (RGBHV) cable to deliver the
signal but that is analog. Currently, only HDMI will
deliver the signal in a DIGITAL format. I'm running RGBHV
from a cable box and I thinkthe HD looks great. The problem
will come with an HD-DVD or BlueRay because, if you take
the RGB feed from that, it REDUCES THE RESOLUTION to 480p.
You can ONLY get full 720p/1080i with HDMI cable, and
most of those cables are (shall we say) less than ideal.
I’m not trying to be controversial or anything but isn’t RGBHV where red, green and blue are separate from the horizontal and vertical sync where component video combines the sync in on the chrominance (green cable on component video)? Is RGB the full bandwidth and component video (different from RGB) the subtractive format of RGB?|
It's a long story why you are forced to go that way.
If you want to hear it, I would be glad to type!
From what I understand it is up to the producer of the disc. If they decide to have the disc only output the max resolution through HDMI they will set the digital flag known as the ICT or Image Constraint Token to on. If the ICT flag is set to off, component video will be able to pass the max resolution.
Although I can't remember what the limitations are on component video so I am not 100% on whether or not it can pass 1080p.
Last edited by DIRTE
on October 1, 2006 18:31.