Quantcast KVCD: GOP Structure for 29.97 fps NTSC ? - digitalFAQ.com Forums [Archives]
  #1  
04-19-2003, 08:50 AM
telemike telemike is offline
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Does the KVCD GOP (1-24-12-24) WORK WELL WITH 29.97 FPS ntsc?
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04-19-2003, 09:49 AM
kwag kwag is offline
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Quote:
Originally Posted by telemike
Does the KVCD GOP (1-24-12-24) WORK WELL WITH 29.97 FPS ntsc?
You might want to try 1-30-2-1-30 just for the hell of it
Remember to adjust the file prediction formula to take 30 frames per sample instead of 24

-kwag
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04-20-2003, 04:44 AM
jshew jshew is offline
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To adjust the file prediction formula, do you mean in Moviestacker, for instance, to change the line that reads: Sampler(length=24) - change the 24 to 30?
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04-20-2003, 05:53 AM
Jellygoose Jellygoose is offline
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Yes that's what you have to do if you want an accurate prediction. I haven't tried if prediction is still that accurate at this framerate! however, give it a go!
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04-20-2003, 02:05 PM
telemike telemike is offline
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what about prediction with ToK?
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04-20-2003, 02:10 PM
kwag kwag is offline
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Quote:
Originally Posted by telemike
what about prediction with ToK?
ToK does it automagically
Make sure you check "Auto", and it will adjust the GOP and the frames size for the samples

-kwag
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04-21-2003, 06:05 AM
telemike telemike is offline
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I tried a GOP of 1-15-2-15 on a 29.97 fps tv capture and it played fine. Played ok on my dvd player.

I think standard TMPGenc GOP is 1-5-2-15
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  #8  
04-21-2003, 07:03 PM
jorel jorel is offline
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Quote:
Originally Posted by kwag
Quote:
Originally Posted by telemike
Does the KVCD GOP (1-24-12-24) WORK WELL WITH 29.97 FPS ntsc?
You might want to try 1-30-2-1-30 just for the hell of it
Remember to adjust the file prediction formula to take 30 frames per sample instead of 24

-kwag
thanks to you Kwag and all here,this is a really important thread!!


using ToK 0053 Auto GOP,

1,5823,2,1,30.... in:

Resolution (fps):480x480 (29,970 fps)
Total Frames: 56420
Total Time : 00:31:23

change or live the 5823???
what i do?

thanks in advance!!!
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  #9  
04-21-2003, 07:15 PM
kwag kwag is offline
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Quote:
Originally Posted by jorel
using ToK 0053 Auto GOP,

1,5823,2,1,30.... in:

Resolution (fps):480x480 (29,970 fps)
Total Frames: 56420
Total Time : 00:31:23

change or live the 5823???
what i do?
You can leave it set to 5823. The MAX number of frames per GOP is always ruled by the last number. 30 in your case.

-kwag
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  #10  
04-21-2003, 08:05 PM
jorel jorel is offline
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as i wrote thousands times before my friend,
you have to create a special thread for "thanks"....
like this;

KWAG:
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x5000

muaddib:
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x 5000

"friendalunit":
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x 5000

sansgrip:
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x 5000

all:
xxxxxxxxxxxxxxxxxxxxxxxxx x 5000

jorel:
x.....(removed)

...some like this

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  #11  
04-25-2003, 01:07 PM
AgNa AgNa is offline
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Is this really needed?? I mean I do a couple of KVCD at 29fps but I didn`t change the /24 vaule in the rpediction formula? I admit the file sometimes was a little bit big but nothig exagerated?
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