View Full Version : Prediction of size of .mpg
Alexey
17th March 2003, 10:32
Hi All!
Does anyone knows how to predict size of .mpg (more or less precisely) for planning numbers of CD for movie?
It is obvious that size of .mpg depends upon time of movie, desirable quality, sound bitrate. Of course there are many bitrate calculators but they almost useless because size of .mpg depends upon used encoder - TMPGEnc, CCE, ProCoder and their settings. I prefer to use Canopus ProCoder with stable settings - 2-pass VBR, high quality and 192/224 CBR for audio. Does any dependence exist and how can I estimate it?
I understand very well that my question is very common but I hope that someone already found solution. May be there is bitrate calculator that can estimate size of movie/numbers of CD with dependency of encoder and setting of it?
Thanks all who will replay!
Alexey
Ácaro
17th March 2003, 12:22
Hello,
yes there is. Try Videocalc, its freeware. You can find it doing a simple search in google (http://www.google.com)
Have fun
yup
17th March 2003, 16:09
Hi Alexey! First of all if You want get high quality MPEG-2 stream You could use VBR encoding and encode whole content and after split to many part. I do not know as this can made in Canopus Procoder, but in CCE SP is Advanced button (availible after first pass VBR or CBR) and You can change average and maximum bitrate and estimate quantization level. If level less than 8 it is O'k. Also You can use Bitrate Viewer for estimate Quant. level, but You need encode material before any encoder.
With kind regards yup.
Alexey
18th March 2003, 08:18
OK, both of you are absolutely right!
And that's real solution.
VideoCalc is the "must have" instrument for estimation size of .mpg.
Also I have found where I can change the bitrate.
Thank you for lesson!
Alexey
jorel
18th March 2003, 10:04
Originally posted by Alexey
OK, both of you are absolutely right!
And that's real solution.
VideoCalc is the "must have" instrument for estimation size of .mpg.
Also I have found where I can change the bitrate.
Thank you for lesson!
Alexey
please Alexey,
where you find VideoCalc?
i don't found!
thank you in advance.
;)
ps:
yesterday google wasn't work here...now i got!
;)
.....
thanks friend Alexey !!!:D
;)
homerjay
1st June 2003, 13:56
is videocalc only available for the mac ? cant seem to find a pc version
i have just done my first conversion using procoder and despite setting bitrate based on duration in dvd2svcd it produced a second cd of 45mb in size which in this case was ok as it was the end credits only but if i had had a source without credits i would have wasted 12 hours
did you ever sort things out alexy ?
thanks
Alexey
2nd June 2003, 22:40
If you need PC version - just just visit site:
_http://www.tomzavodny.cz/program/bitcalc/index_en.php - now it works.
This is best size-estimation tool that I ever seen for MPEGs and AVIs.
Regards,
Alexey
homerjay
3rd June 2003, 10:26
nice one - thanks alexey:D
Interesting tool!
However, it does not take into account cropping for SVCDs, which saves a lot of BR (as FitCD and MovieStacker do).
Also, the author's quality definitions are his own opinions and it would be nice to know what are the "metrics" he uses.
Unfortunately, none of these tools takes into account compressibility. I have found that this affects what we understand for "quality" a lot.
Very graphical and intuitive look though. A good vision to start tweaking.
eugen
10th June 2003, 11:50
would you be so kind to explain about advanced button in CCE SP?
what do you mean and where it is possible to find it to estimate quantization level? I am using both 250/267 versions.
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