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DVCPRO HD to DVD

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Jørgen Rypdal
DVCPRO HD to DVD
on Sep 10, 2008 at 8:56:21 am

Hi!
We shoot all out projects on DVCPRO HD 50, and we are having problem with jagged lines when encoding to DVD. What method is the best for downscaling to DVD? Is this problem fixable? We use premiere to edit, and export as uncompressed mov. Then we encode it in Tmpgenc to mpg2, and then to adobe encore to make the dvds. Is there a better way?
Thanks!


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Daniel Low
Re: DVCPRO HD to DVD
on Sep 10, 2008 at 9:31:24 pm

What application are you using to do the downscaling? Tmpgenc?

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Jørgen Rypdal
Re: DVCPRO HD to DVD
on Sep 12, 2008 at 8:01:27 am

Yes.



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Daniel Low
Re: DVCPRO HD to DVD
on Sep 12, 2008 at 11:15:14 am

I'm not sure then, Tmpgenc should give good results. Are you sure it's not an issue with fields?

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Jørgen Rypdal
Re: DVCPRO HD to DVD
on Sep 12, 2008 at 5:58:40 pm

Not sure.. It could look like it. I will have a closer look.. what should be the correct procedure? From 720P to dvd - lower fields?


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Daniel Low
Re: DVCPRO HD to DVD
on Sep 12, 2008 at 6:12:51 pm

720p is progressive, there are no fields, so you shouldn't be applying any deinterlacing anywhere in the workflow.

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Jørgen Rypdal
Re: DVCPRO HD to DVD
on Sep 14, 2008 at 11:41:41 am

no, but to the final DVD ?



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Daniel Low
Re: DVCPRO HD to DVD
on Sep 14, 2008 at 11:59:11 am

??

Your workflow should be:

Export from Premiere at full resolution 1280x720p

Encode to elementary stream MPEG-2 progressive in Tmpgenc, resizing to 16:9 720x576p

(You don't need to 'add' fields)

Author DVD.

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Jørgen Rypdal
Re: DVCPRO HD to DVD
on Sep 14, 2008 at 7:23:45 pm

ok! thanks, will try this.. might be I've interlaced twice:)



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Jørgen Rypdal
Re: DVCPRO HD to DVD
on Sep 15, 2008 at 8:08:50 am

I've now tried your workflow, but when using it, the dvd become progressive, and panning is choppy. And when I interlace the dvd, things like wires and stuff become ugly. (jaggies, not straight lines).
Isn't there a way to get the dvd interlaced without the jaggies?



Could it be the flatscreen tv or the player, causing this problem?


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Daniel Low
Re: DVCPRO HD to DVD
on Sep 15, 2008 at 10:26:55 am

What are you viewing your DVD on/with?

This may help you understand what's going on:

http://www.hometheaterhifi.com/volume_7_4/dvd-benchmark-part-5-progressive-...

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Jørgen Rypdal
Re: DVCPRO HD to DVD
on Sep 15, 2008 at 11:56:46 am

We are viewing it on a Samsung full hd lcd tv. And the player is Sony Blu-ray player(BDP-S300).



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Daniel Low
Re: DVCPRO HD to DVD
on Sep 15, 2008 at 1:04:00 pm

Progressive source content encoded to progressive MPEG-2 and displayed on a progressive display should look great.

There must be something wrong with your settings and/or workflow somewhere along the way. You need to make sure every setting in each application is set to progressive or non-interlaced.

What frame rate is the 720p?
What frame rate is the MPEG-2 set to?





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Jørgen Rypdal
Re: DVCPRO HD to DVD
on Sep 15, 2008 at 1:06:19 pm

720: 50 and dvd: 25..



The link you gave me:
It's looking like Moire. "Both the moire and jaggies are clues that video mode deinterlacing is taking place instead of film mode."

How do you change this?


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Daniel Low
Re: DVCPRO HD to DVD
on Sep 15, 2008 at 1:48:16 pm

You got yourself a can of worms there.

Unless you are doing a proper conform from 50-25fps, you are simply throwing away half of your frames, so no wonder progressive looks 'Choppy'

There are ways to properly conform your footage but I don't know of a way using the tools you have there. Personally I'd use Cinematools on the Mac (Part of Final Cut Studio) but you probably don't want to hear that.

With some knowledge of scripting you can get good results using Avisynth:

http://forum.doom9.org/showthread.php?t=117586





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Jørgen Rypdal
Re: DVCPRO HD to DVD
on Sep 15, 2008 at 1:52:30 pm

hehe.. i'm beginning to think this is way over my head.. :D
we have a scripting guru here our company, so I look into the avisynth method! Thanks for all the help so far! :)



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Cole Prine
Re: DVCPRO HD to DVD
on Sep 18, 2008 at 9:21:27 pm

I don't know much about blue ray players, but we were having the same problem once...turned out our dvd player's progressive mode was turned off...

Cole



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Jørgen Rypdal
Re: DVCPRO HD to DVD
on Sep 19, 2008 at 6:57:14 am

What was the option for turning it on? (e.g Progressive on/off?, or something completely different?)



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Cole Prine
Re: DVCPRO HD to DVD
on Sep 19, 2008 at 1:22:46 pm

Yeah it was just progressive on/off. It was just buried in the menu options.



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Daniel Low
Re: DVCPRO HD to DVD
on Sep 19, 2008 at 1:37:38 pm

One of my players has a physical switch at the back, but I really don't think this is the issue here.

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