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Compression for Cartoon DVD

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Trent Diggity
Compression for Cartoon DVD
on Oct 6, 2009 at 8:01:42 pm

I've just finished up work on a 4 minute cartoon that was completed in Flash/After Effects. I'm running into problems when compressing it to dvd. I've tried using dvdstudiopro and allowing it to handle the compression and the results are pretty bad. I then swapped to compressor and they have improved but still arnt anywhere near the quality of a dvd one would purchase over the counter. Anyone have an idea on how I can improve my image quality? there are alot of flat colors and after compression they end up with artifacts.
Thanks.
-Trent


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Daniel Low
Re: Compression for Cartoon DVD
on Oct 6, 2009 at 9:02:33 pm

Try changing the settings.


Seriously, if you can't tell us what you have already tried in terms of encoding settings, how are we going to be able to give any useful advice?

__________________________________________________________________
"There's no chance that the iPhone is going to get any significant market share. No chance."

Steve Ballmer To USA Today

"We and Apple are neck and neck and we're chasing the two
other players," Ballmer said, referring to Nokia and Research in Motion. October 6th 2009


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Trent Diggity
Re: Compression for Cartoon DVD
on Oct 7, 2009 at 3:23:28 am

So far I've tried
DVDStudio Pro's compression, I dont think settings can be altered on this but I could be wrong
Adobe Encore - same deal.

After getting bad results I took my movie into compressor.
From here I tried these two defaults
120 Min DVD Best Quality 2 passes
90 Min DVD Best Quality 2 passes

when that failed to give desired results, I upped the mb/sec to 7.7





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Daniel Low
Re: Compression for Cartoon DVD
on Oct 7, 2009 at 8:36:09 am

You can change the settings in DVD SP - check the preferences.

Please tell us about your source content:

What's the frame size and frame rate?

What format/Codec did you use to export it from AfterEffects?

__________________________________________________________________
"There's no chance that the iPhone is going to get any significant market share. No chance."

Steve Ballmer To USA Today: 30 April 2007

"We and Apple are neck and neck and we're chasing the two
other players,"

Steve Ballmer, referring to Nokia and Research in Motion. October 6th 2009


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Trent Diggity
Re: Compression for Cartoon DVD
on Oct 7, 2009 at 5:12:12 pm

Source content is 30fps, 720x486. Animation compression out of after effects. I've viewed it on a professional monitor and scope, It looks perfect before going down to mpeg2. In the encoder section of compressor, I've pushed the quality as high as it will go - 7.7mbs.




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Daniel Low
Re: Compression for Cartoon DVD
on Oct 7, 2009 at 6:01:11 pm

[Trent Diggity] "Source content is 30fps, 720x486. Animation compression out of after effects"

It looks like you made one very common error, you've rendered out a square pixel project to a non-aquare pixel frame size and this will be degrading the picture quality some what. You should have rendered out at 640x480 Square pixel

Additionally, are you using CBR or VBR, 1 pass or 2 pass in compressor?



__________________________________________________________________
"There's no chance that the iPhone is going to get any significant market share. No chance."

Steve Ballmer To USA Today: 30 April 2007

"We and Apple are neck and neck and we're chasing the two
other players,"

Steve Ballmer, referring to Nokia and Research in Motion. October 6th 2009


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Craig Seeman
Re: Compression for Cartoon DVD
on Oct 7, 2009 at 6:16:27 pm

I've had some personal bad experience with Animation codec files as source. Sometimes exporting out of After Effects in 8 bit Uncompressed will hold up better going to MPEG-2. I can't say that's the issue with a certitude but it's another think to try in addition to Daniel's observation.



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Trent Diggity
Re: Compression for Cartoon DVD
on Oct 7, 2009 at 6:39:59 pm

I'm using VBR. I'll give the square 640x480 a try now. I'll let you know the results.



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Daniel Low
Re: Compression for Cartoon DVD
on Oct 7, 2009 at 7:17:38 pm

I'd also try CBR while you're at it.

__________________________________________________________________
"There's no chance that the iPhone is going to get any significant market share. No chance."

Steve Ballmer To USA Today: 30 April 2007

"We and Apple are neck and neck and we're chasing the two
other players,"

Steve Ballmer, referring to Nokia and Research in Motion. October 6th 2009


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Trent Diggity
Re: Compression for Cartoon DVD
on Oct 9, 2009 at 6:24:21 pm

So I tried going to the 640x480 square pixel. it actually made the problem a bit worse.
I haven't found where I can change to CBR, wheres that located?



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Daniel Low
Re: Compression for Cartoon DVD
on Oct 9, 2009 at 6:39:22 pm

In the same tab you change the bitrate, in the inspector

__________________________________________________________________
"There's no chance that the iPhone is going to get any significant market share. No chance."

Steve Ballmer To USA Today: 30 April 2007

"We and Apple are neck and neck and we're chasing the two
other players,"

Steve Ballmer, referring to Nokia and Research in Motion. October 6th 2009


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Trent Diggity
Re: Compression for Cartoon DVD
on Oct 9, 2009 at 7:31:26 pm

getting the same results. starting to think what i have is the best it can get. I'm gonna move over and try adobe's media encoder program and see if that improves results. I'm also going to try looking at this on another television.



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Daniel Low
Re: Compression for Cartoon DVD
on Oct 9, 2009 at 7:49:12 pm

Could you send us a screen grab of one of the worst frames, just so we can see whats going on?

Also, what kind of TV are you viewing this on?

__________________________________________________________________
"There's no chance that the iPhone is going to get any significant market share. No chance."

Steve Ballmer To USA Today: 30 April 2007

"We and Apple are neck and neck and we're chasing the two
other players,"

Steve Ballmer, referring to Nokia and Research in Motion. October 6th 2009


Return to posts index

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