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-   -   File Prediciton for PAL always out by about 20 MB (http://www.digitalfaq.com/archives/avisynth/2331-file-prediciton-pal.html)

Jellygoose 01-25-2003 06:32 AM

File Prediciton for PAL always out by about 20 MB
 
Hi all!

I don't know why, but my file size prediction for PAL is always out by 20 MB... I use sampler=24 , and the current formula:

Predicted MPEG size = (( Total frames/MovieTimeInMinutes) / 24 ) * MPEG sample file size

The final MPEG size is always smaller than predicted...

kwag 01-25-2003 06:40 AM

Re: File Prediciton for PAL : always out by aprox. 20 MB...
 
Quote:

Originally Posted by Jellygoose
Hi all!

I don't know why, but my file size prediction for PAL is always out by 20 MB... I use sampler=24 , and the current formula:

Predicted MPEG size = (( Total frames/MovieTimeInMinutes) / 24 ) * MPEG sample file size

The final MPEG size is always smaller than predicted...

That should be about right. Use the .98 factor, and that will bring it close to reality :D

-kwag

Kane 02-16-2003 08:43 AM

i have made the same experience as jellygoose

how must i calculate?

MPEG sample file size * 0.98 ?

Jellygoose 02-16-2003 05:30 PM

worked for me buddy :wink:

Kane 02-17-2003 06:30 AM

but that sounds not logical, if i reduce the size of the sample , the size of the whole video is also reduced, i think

Jellygoose 02-17-2003 06:54 AM

No, because the factor you divide by is actually reduced... see if you want to determine your sample size you do this : CD Size - Audio Size / ((TotalFrames/MovieTime/24)*0.98)

get it ? :wink:

Kane 02-17-2003 07:06 AM

i understand, what you wrote, sound not logical, although

you got pm


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