Originally Posted by wolfyncsu7
Question to any insiders who might know (and I apologize if this has been posted before... I searched for a little bit ... I promise):
Is HD DVD and/ or Blu-ray able to provide source material that will utilize the expanded color range (not sure if I phrased this correctly) that HDMI 1.3 brings to the table?
Is it just a matter of more bits and more space needed to provide more colors? Will this also be dependent on the data rate transfer specs for each format?
(Acknowledging Amir and Rich's posts, yes there were crickets for a little bit.)
First off, don't we want TV's that correctly support 709 properly? Several DLP's and LCD's I've dug into still have no 10-bit support. There's a Pro-level plasma from Pioneer that says it has true 10-bit support, but that horse burned me bad before... ;) Don't worry, we'll still look at it to see if it'll pass our testing.
Amir is right that there's more to fix than whether or not we've got 10-bit 4:2:0 on the disc. Also, I don't think you want your players going THAT far up in price right off the bat as it's not just the codec and decoder you've got to worry about. There's the compositing and HDMI transmission chips that have to be upgraded. As I'm not an engineer of these boxes, I'd be curious to know exactly how much these would cost. The PS3 tacked on some for the HDMI 1.3 ability. Does the Sony, Pioneer, or other stand-alone player support HDMI 1.3 already?
Tom from Broadcom spoke about the 10-bit high profile spec for H.264. I read a little into it and believe as he does that 10-bit 4:2:0 is just like HD resolution as the percentage of increase does not directly reflect the increase in bitrate (that's 25% up for math whizzes out there for the bitdepth). Don't focus on the 256 levels versus 1024 levels thing as it's the number of bits, not levels, that get stored on the disc. We could see it increasing the bitrate maybe 10-12%, but that's nothing when you're looking at from 14Mbits to ~16Mbits ABR. BTW, 10-bit 4:2:2 would be about another 25% jump over 8-bit to 10-bit. 18-21Mbits ABR, anyone??? Mmmmm, smoother color gradients (insert Homer gargle... :D ). So, to answer your question... Does either disc spec support a 10-bit video, not to my knowledge. Can the codecs do it efficiently? Oh yeah and better than MPEG-2 did just for 4:2:0 to 4:2:2's jump (~7Mbits to ~18Mbits for SD???). Maybe VC-1 can/does have it as well.
However, as to my earlier point, I'm making this WAY too simplistic for the CE's out there. You could see a player cost jump over that piddly 45% (potential) I mentioned in my codec response. Also, I've yet to see a 10-bit profile encoder for H.264. x264 project, pretty please??? :o So this could be pure speculation and could be difficult to code an encoder for it as not much work exists in that regard that's widely available.