HV20 to Intensity

Anton Galimzyanov · September 10th, 2007, 08:00 AM

Hi David and everyone

I can't ingest video from my HV20 in 10bit mode.. Instead HDLink' display says: no video input. The only working HDLink preset is 1920x1080 4.2.2 8bit 25fps (PAL version).

I have the last version of ProspectHD (build137), PPro 2.0, Nvidia 7950, Intensity 1.6, WinXP SP2.

Could you help me with that?
many thanks

David Newman · September 10th, 2007, 09:23 AM

The camera is not sending 10-bit data. When we do have 10-bit HDMI cameras there may be a issues with the one lane PCI-e bus the Intensity uses. We have observed bandwidth issue on some PCs with 10-bit I/O, whereas the 4-lane Decklink cards will work fine.

Anton Galimzyanov · September 10th, 2007, 11:09 AM

in other words, it's normal - to use only 8bit mode with HV-20?

David Newman · September 10th, 2007, 12:00 PM

Yes, HV20 is an 8-bit camera.

David Taylor · September 10th, 2007, 03:41 PM

Anton, one extra point of clarity. Your recorded CineForm files will be 10-bit files even though they derive from the 8-bit HV20. This extra precision is valuable in reducing banding as you move into post and push your images around.

Anton Galimzyanov · September 11th, 2007, 03:29 AM

That's exactly what I wanted to hear! Even with 8bit camera I'll get 10bit file
(I do a lot of CC)

Thank you very much!

Anton Galimzyanov · September 17th, 2007, 04:37 AM

One more question
Is it possible - to use 1920x1080 25fps (instead of NTSC's 1920x1080 29) as a default preset for capturing in HDLink?

September 10th, 2007, 08:00 AM	#1
Anton Galimzyanov Regular Crew Join Date: Feb 2005 Location: Moscow, Russia Posts: 53	HV20 to Intensity - 10bit possible? Hi David and everyone I can't ingest video from my HV20 in 10bit mode.. Instead HDLink' display says: no video input. The only working HDLink preset is 1920x1080 4.2.2 8bit 25fps (PAL version). I have the last version of ProspectHD (build137), PPro 2.0, Nvidia 7950, Intensity 1.6, WinXP SP2. Could you help me with that? many thanks

September 10th, 2007, 09:23 AM	#2
David Newman CTO, CineForm Inc. Join Date: Jul 2003 Location: Cardiff-by-the-Sea, California Posts: 8,095	The camera is not sending 10-bit data. When we do have 10-bit HDMI cameras there may be a issues with the one lane PCI-e bus the Intensity uses. We have observed bandwidth issue on some PCs with 10-bit I/O, whereas the 4-lane Decklink cards will work fine. __________________ David Newman -- web: www.gopro.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman

September 10th, 2007, 12:00 PM	#4
David Newman CTO, CineForm Inc. Join Date: Jul 2003 Location: Cardiff-by-the-Sea, California Posts: 8,095	Yes, HV20 is an 8-bit camera. __________________ David Newman -- web: www.gopro.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman

September 10th, 2007, 11:09 AM	#3
Anton Galimzyanov Regular Crew Join Date: Feb 2005 Location: Moscow, Russia Posts: 53	in other words, it's normal - to use only 8bit mode with HV-20?

September 10th, 2007, 03:41 PM	#5
David Taylor Major Player Join Date: Sep 2003 Location: Solana Beach, CA Posts: 853	Anton, one extra point of clarity. Your recorded CineForm files will be 10-bit files even though they derive from the 8-bit HV20. This extra precision is valuable in reducing banding as you move into post and push your images around.

September 11th, 2007, 03:29 AM	#6
Anton Galimzyanov Regular Crew Join Date: Feb 2005 Location: Moscow, Russia Posts: 53	That's exactly what I wanted to hear! Even with 8bit camera I'll get 10bit file (I do a lot of CC) Thank you very much!

September 17th, 2007, 04:37 AM	#7
Anton Galimzyanov Regular Crew Join Date: Feb 2005 Location: Moscow, Russia Posts: 53	One more question Is it possible - to use 1920x1080 25fps (instead of NTSC's 1920x1080 29) as a default preset for capturing in HDLink?