development towards 1080p50/60

Tim Polster · February 28th, 2011, 09:22 AM

How about over the HDMI input?

Dan Keaton · February 28th, 2011, 09:27 AM

Dear Tim,

That may be possible.

Rafael Amador · February 28th, 2011, 10:18 AM

Quote:

Originally Posted by Tim Polster

How about over the HDMI input?

HDMI can transfer that data in RT, but whatever we put out of the HDMI/SDI, I don't think any of these signal can't be recorded as MPEG-2. Those frames rates are off the specs of the MPEG-2 norm.
Beside needing a new MPEG-2 flavor, I guess we would need a new processor more than a Firmware update.
rafael

Dan Keaton · March 1st, 2011, 08:56 AM

Dear Friends,

I should have been clearer in my reply to Tim.

Yes, I feel that 1080p60 is technically possible over HDMI.

No, the nanoFlash is not designed to handle 1080p60. For one, the Sony Codec can not handle 1080p60 as far as I know.

Peter Moretti · March 1st, 2011, 09:47 AM

If it's possible to specify upper field or lower field first w/ 60i encoding, then there seems to be at least a hypothetical solution to this.

You could split the signal and send it to two encoders. One encoder is set to 60i upper field first. The other is set to 60i lower field first. Combining the streams coming out of these two encoders (similar to detinterlacing PsF material) could create true 60P.

Now how practical any of this is, I of course have no idea.

Jack Zhang · March 12th, 2011, 05:06 PM

ARM Cortex or Nvidia Tegra are (IMO) two types of processors showing promise of raw encode power for 1080p60.

The problem at the moment is: The codec.

MPEG-2 cannot efficiently take in 1080p60. H.264 may be an option, but royalties could get in the way.

AVC-Ultra, the vaporware codec from Panasonic, was to be the definitive 1080p60 codec. Unfortunately, we haven't heard of any products using it.

What we need is an open source codec that encodes well for acquisition in 1080p60 and fits within mobile processor specs for encode/decode. VP8 is what I had in mind, but it's (as expected) under attack from the MPEG-LA.

nanoFlash could offer a Cineform option for 1080p60 if a partnership ever arises down the line. But that's wishful thinking.

February 28th, 2011, 09:22 AM	#16
Tim Polster Inner Circle Join Date: Dec 2004 Location: Arlington, TX Posts: 2,231	Re: development towards 1080p50/60 How about over the HDMI input?

February 28th, 2011, 09:27 AM	#17
Dan Keaton Inner Circle Join Date: Dec 2002 Location: Augusta Georgia Posts: 5,421	Re: development towards 1080p50/60 Dear Tim, That may be possible. __________________ Dan Keaton Augusta Georgia

March 1st, 2011, 08:56 AM	#19
Dan Keaton Inner Circle Join Date: Dec 2002 Location: Augusta Georgia Posts: 5,421	Re: development towards 1080p50/60 Dear Friends, I should have been clearer in my reply to Tim. Yes, I feel that 1080p60 is technically possible over HDMI. No, the nanoFlash is not designed to handle 1080p60. For one, the Sony Codec can not handle 1080p60 as far as I know. __________________ Dan Keaton Augusta Georgia

March 1st, 2011, 09:47 AM	#20
Peter Moretti Trustee Join Date: Mar 2007 Location: Sherman Oaks, CA Posts: 1,259	Re: development towards 1080p50/60 If it's possible to specify upper field or lower field first w/ 60i encoding, then there seems to be at least a hypothetical solution to this. You could split the signal and send it to two encoders. One encoder is set to 60i upper field first. The other is set to 60i lower field first. Combining the streams coming out of these two encoders (similar to detinterlacing PsF material) could create true 60P. Now how practical any of this is, I of course have no idea. __________________ Avid Media Composer 3.1.3. Boris Red and Continuum Complete. Vegas 8.0c. TMPGEnc Xpress Pro 4.0

March 12th, 2011, 05:06 PM	#21
Jack Zhang Inner Circle Join Date: May 2005 Location: Burnaby, BC, Canada Posts: 3,053	Re: development towards 1080p50/60 ARM Cortex or Nvidia Tegra are (IMO) two types of processors showing promise of raw encode power for 1080p60. The problem at the moment is: The codec. MPEG-2 cannot efficiently take in 1080p60. H.264 may be an option, but royalties could get in the way. AVC-Ultra, the vaporware codec from Panasonic, was to be the definitive 1080p60 codec. Unfortunately, we haven't heard of any products using it. What we need is an open source codec that encodes well for acquisition in 1080p60 and fits within mobile processor specs for encode/decode. VP8 is what I had in mind, but it's (as expected) under attack from the MPEG-LA. nanoFlash could offer a Cineform option for 1080p60 if a partnership ever arises down the line. But that's wishful thinking.