Slow-Mo? at DVinfo.net

Bruce Meyers · March 2nd, 2006, 10:42 AM

Quote:

Originally Posted by Tim Dashwood

"The process for 480P60 has nothing to do with DV. It is still HDV, just not 720P

The procedure in FCP for "HDV-SD60P" (aka 480P60) footage ingest is:

Capture using a m2t capture application like Lumiere HD, HDVxDV, or DVHSCap. Use Mpegstreamclip to cross-convert and up-rez (1 step) to AIC 720P60 (just set 1280x720) as resolution. You can do this as a batch process for a bunch of clips.

Alternatively you could use iMovie HD or the HDV to AIC digitizer in FCP (transcodes to AIC on-the-fly) but you will have to uprez to HD later.

Then open Cinema Tools and batch conform all of your new 720P60 clips to 23.98fps (or 29.97 if you like.)

Drag the clips into FCP and edit."

What do you mean by cross-convert and up-rez (1 step) to AIC 720P60?

I tried exporting that footage at AIC full quality 1280 x720 and the footage looks remarkably UN-High-DEF it looks like DV quality... what am I doing wrong?

Tim Gray · March 2nd, 2006, 01:58 PM

When I tried this, it seemed to work ok. The footage looked like 720x480 in dimensions. This is standard def. It was anamorphic. I captured using DVHSCap then transcoded to AIC with out changing resolution. Then bring it onto your timeline and resize it.

It is not hidef. It shouldn't look totally like DV - it should be at 60fps progressive and it should be 4:2:0 and not 4:1:1. However, it will probably upscale to hidef about as gracefully as DV since they both are 720x480... which is "remarkably UN-High-DEF."

Tim Dashwood · March 2nd, 2006, 02:23 PM

Quote:

Originally Posted by Bruce Meyers

What do you mean by cross-convert and up-rez (1 step) to AIC 720P60?

Step by Step:

Launch MpegStreamclip
Open "Batch List" from the "List" menu. (CMD+B)
Drag your 480P60 m2t clips into the batch list
When asked, choose "Export to Quicktime"
Select the destination folder
When the "Movie Exporter" option window pops up select "Apple Intermediate Codec" as compression
Push the quality slider up to 100%
Set sound to "No Sound"
Set frame size to 1280 x 720 --- this is where the "uprez" happens
Deselect "Interlaced Scaling" and "Reinterlace Chroma"
OPTIONAL: Save these settings as a preset.
Click "To Batch"
Click "Go"

When the process is finished, launch Cinema Tools and "batch conform" the clips to 23.98 fps.

Quote:

I tried exporting that footage at AIC full quality 1280 x720 and the footage looks remarkably UN-High-DEF it looks like DV quality... what am I doing wrong?

It isn't Hi-Def - it is 960x480 uprezzed to HD 1280x720. It will not be as sharp as shooting in 1280x720 in the first place because it is essentially NTSC resolution (but not anamorphically squeezed to 720x480.)
However, other than tapping the live output in 720P30 mode, it is the only other way to get 60P out of the HD100.

Tim Gray · March 2nd, 2006, 03:25 PM

Ok so I guess its not anamorphic. At some point while playing around with it I must have taken it from 854x480 to 720x480.

DJ Lewis · March 2nd, 2006, 04:50 PM

Haven't started using the HD100 with a mac yet (considering I just pulled out of the box an hour ago... btw: wow!), but could you use a modified version of the process to uprez to 1080i/p... since all the other cams are uprez-ing to get to 1080i/p, if I had a situation where I needed it, would this look horribly bad?

Nate Weaver · March 2nd, 2006, 06:43 PM

Quote:

Originally Posted by DJ Lewis

Haven't started using the HD100 with a mac yet (considering I just pulled out of the box an hour ago... btw: wow!), but could you use a modified version of the process to uprez to 1080i/p... since all the other cams are uprez-ing to get to 1080i/p, if I had a situation where I needed it, would this look horribly bad?

It wouldn't look bad, it just wouldn't look any better. You don't gain anything by uprezzing a camera image that comfortably fits in a 1280x720 frame into an even bigger frame.

IOW, there's no free lunches.

DJ Lewis · March 2nd, 2006, 09:15 PM

Thanks Nate... wasn't necesarily trying to make it look any better, just wondering if I had to cut it into 1080 footage, if I could get away with it.... sounds like I can. :)

Nate Weaver · March 2nd, 2006, 10:09 PM

Ah, my bad. Yeah, you could definitely do that.

March 2nd, 2006, 10:09 PM	#8
Nate Weaver Wrangler Join Date: Oct 2002 Location: Los Angeles, CA Posts: 2,100	Ah, my bad. Yeah, you could definitely do that. __________________ My Work: nateweaver.net

March 2nd, 2006, 01:58 PM	#2
Tim Gray Regular Crew Join Date: Feb 2006 Location: Media, PA Posts: 144	When I tried this, it seemed to work ok. The footage looked like 720x480 in dimensions. This is standard def. It was anamorphic. I captured using DVHSCap then transcoded to AIC with out changing resolution. Then bring it onto your timeline and resize it. It is not hidef. It shouldn't look totally like DV - it should be at 60fps progressive and it should be 4:2:0 and not 4:1:1. However, it will probably upscale to hidef about as gracefully as DV since they both are 720x480... which is "remarkably UN-High-DEF."

March 2nd, 2006, 03:25 PM	#4
Tim Gray Regular Crew Join Date: Feb 2006 Location: Media, PA Posts: 144	Ok so I guess its not anamorphic. At some point while playing around with it I must have taken it from 854x480 to 720x480.

March 2nd, 2006, 04:50 PM	#5
DJ Lewis Regular Crew Join Date: Dec 2005 Posts: 97	Haven't started using the HD100 with a mac yet (considering I just pulled out of the box an hour ago... btw: wow!), but could you use a modified version of the process to uprez to 1080i/p... since all the other cams are uprez-ing to get to 1080i/p, if I had a situation where I needed it, would this look horribly bad?

March 2nd, 2006, 09:15 PM	#7
DJ Lewis Regular Crew Join Date: Dec 2005 Posts: 97	Thanks Nate... wasn't necesarily trying to make it look any better, just wondering if I had to cut it into 1080 footage, if I could get away with it.... sounds like I can. :)