DTD timelapse? at DVinfo.net

Gary Smith · August 17th, 2006, 10:57 AM

Hi all;
Does anyone have experience with recording timelapse (interval recording) direct to disc?
I have an FX-1 and would like to purchase software that would allow me to record m2t files to a laptop where I am capturing every 10th frame or so to disc. I would consider one of the DTD recorders instead of a laptop if this feature was offered. Thanks for any feedback.

John Mitchell · September 11th, 2006, 09:01 AM

HDV is a problem for interval recording because it is GOP based MPEG 2 - hence you must record at least 1 GOP (in the case of the FX1 I think it's 15 frames). None of the current D2D solutions are intelligent enough to do this (well none that I know of...). Some do interval recording in DV mode which is intraframe.

Maybe using a laptop and Cineform codec (intraframe based) could be the solution but I don't know if any software supports interval recording in that mode?

If you are only looking to record every 10th frame (not much of an interval really) then I would suggest that DTD recording everything could still work as you can record for periods up to 8 hours and just use software to compress the timeline.

Gary Smith · September 12th, 2006, 10:00 AM

John;

Thanks for the explanation. I will be on the lookout for such a feature in the future.

John Miller · December 2nd, 2006, 12:57 PM

Quote:

Originally Posted by John Mitchell

HDV is a problem for interval recording because it is GOP based MPEG 2 - hence you must record at least 1 GOP (in the case of the FX1 I think it's 15 frames).

Why not just record the I-frame that each GOP starts with?

August 17th, 2006, 10:57 AM	#1
Gary Smith Regular Crew Join Date: Apr 2005 Location: Berryville, Va. 22611 Posts: 28	DTD timelapse? Hi all; Does anyone have experience with recording timelapse (interval recording) direct to disc? I have an FX-1 and would like to purchase software that would allow me to record m2t files to a laptop where I am capturing every 10th frame or so to disc. I would consider one of the DTD recorders instead of a laptop if this feature was offered. Thanks for any feedback. __________________ Gary Smith

September 12th, 2006, 10:00 AM	#3
Gary Smith Regular Crew Join Date: Apr 2005 Location: Berryville, Va. 22611 Posts: 28	Thanks John John; Thanks for the explanation. I will be on the lookout for such a feature in the future. __________________ Gary Smith

September 11th, 2006, 09:01 AM	#2
John Mitchell Contributor Join Date: Jul 2005 Location: Sydney Australia Posts: 873	HDV is a problem for interval recording because it is GOP based MPEG 2 - hence you must record at least 1 GOP (in the case of the FX1 I think it's 15 frames). None of the current D2D solutions are intelligent enough to do this (well none that I know of...). Some do interval recording in DV mode which is intraframe. Maybe using a laptop and Cineform codec (intraframe based) could be the solution but I don't know if any software supports interval recording in that mode? If you are only looking to record every 10th frame (not much of an interval really) then I would suggest that DTD recording everything could still work as you can record for periods up to 8 hours and just use software to compress the timeline.