Grass Valley Infinity recorder HD SDI at DVinfo.net

Asa Phelps · March 23rd, 2006, 05:23 AM

Anyone tried one of these on a XL H1?
Jpeg 2000 seems to hold up very well.
Price should be less of 10K.

Take a look:
http://www.thomsongrassvalley.com/do...ro/GV-2048.pdf

Asa

Barlow Elton · March 23rd, 2006, 09:47 AM

What kind of NLE and computer do you work with? Ever tried playing back JPEG2000 transcoded clips? On my G5 dual 2.7 I'm getting a playback frame rate of less than 2 fps from clips encoded to bit rates of 200 mbs, from H1 m2t's. I know it isn't the drive because it should be able to read 28 MBs.

I have a feeling JPEG2000 is going to require dedicated hardware to be functional in an NLE.

Asa Phelps · March 23rd, 2006, 10:20 AM

Maybe editing offline could be a chance.. Edit first HDV material from cassette, then working on Jpeg2000 for post production.. Not the best workflow anyway..

Asa

Barlow Elton · March 23rd, 2006, 11:40 AM

I'm going to test my jpeg2000 clips to see how quickly they convert to other formats for editing purposes.

Serge Victorovich · March 29th, 2006, 10:02 AM

JPEG2000 is wavelet codec as Cineform. If change header of file from J2K to CFHD...

March 23rd, 2006, 05:23 AM	#1
Asa Phelps New Boot Join Date: Sep 2004 Location: Venice, Italy Posts: 23	Grass Valley Infinity recorder HD SDI Anyone tried one of these on a XL H1? Jpeg 2000 seems to hold up very well. Price should be less of 10K. Take a look: http://www.thomsongrassvalley.com/do...ro/GV-2048.pdf Asa

March 23rd, 2006, 09:47 AM	#2
Barlow Elton Major Player Join Date: Mar 2005 Location: UT Posts: 945	What kind of NLE and computer do you work with? Ever tried playing back JPEG2000 transcoded clips? On my G5 dual 2.7 I'm getting a playback frame rate of less than 2 fps from clips encoded to bit rates of 200 mbs, from H1 m2t's. I know it isn't the drive because it should be able to read 28 MBs. I have a feeling JPEG2000 is going to require dedicated hardware to be functional in an NLE.

March 23rd, 2006, 10:20 AM	#3
Asa Phelps New Boot Join Date: Sep 2004 Location: Venice, Italy Posts: 23	Maybe editing offline could be a chance.. Edit first HDV material from cassette, then working on Jpeg2000 for post production.. Not the best workflow anyway.. Asa

March 23rd, 2006, 11:40 AM	#4
Barlow Elton Major Player Join Date: Mar 2005 Location: UT Posts: 945	I'm going to test my jpeg2000 clips to see how quickly they convert to other formats for editing purposes.

March 29th, 2006, 10:02 AM	#5
Serge Victorovich Major Player Join Date: Oct 2005 Posts: 376	JPEG2000 is wavelet codec as Cineform. If change header of file from J2K to CFHD...