Quantcast Bitrates: CQmatic/Calcumatic - Page 15 - digitalFAQ.com Forums [Archives]
  #281  
07-29-2003, 07:01 AM
ozjeff99 ozjeff99 is offline
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Used Qmatic for first time (RC-3). Starting with CQ of 60 it took 50mins to find CQ of 71. Some relevant stats:

PAL DVD movie: da Hip Hop Witch (interlaced)
Avg. bit rate 1158
Movie Time 85
Max/Min rate used in Tmpgenc(v2.511) 2000/660

Length of .mv1 = 818,325kB. Should have been 716MB

Used MA script with Deinterlace. I also use idct=5 in Mpeg2Source().

Any ideas anyone?

ozjeff99
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  #282  
07-29-2003, 07:03 AM
vhelp vhelp is offline
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hi Kwag..

Quote:
Changes to 1.0 RC-5
Fixed: Avoid continuous "bumps" in CQ, when dealing at very low CQ values out of linear scale.
Fixed: Small cosmetic button alignment.
Yeah, I was wondering WHEN you was gonna get to that hehe

-vhelp
  #283  
07-29-2003, 11:58 AM
tigger tigger is offline
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well, think i got the clue

encoded film 88 mins,

set min = 0.57*avg bitrate, max=2000, predicted cq with cqmatic,
set min to 270, then encoded the movie with the predicted cq, video stream length = 699mb, after muxing : 790 MB !!! SO PERFECT!!!
THX KWAG FOR THIS GREAT TOOL!!!
  #284  
07-29-2003, 12:09 PM
kwag kwag is offline
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Great to hear that tigger
Your source was DVD right

-kwag
  #285  
07-29-2003, 12:18 PM
tigger tigger is offline
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yes, pal dvd
friday the 13th *G*
  #286  
07-29-2003, 01:41 PM
nicksteel nicksteel is offline
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Todo:
* Continued testing higher degree of prediction accuracy.
* Add user precision selection. (For version 2, if necessary )
* Add log file on disk [ Log now copied to Clipboard ]
* Avoid multiple running instances on CQMatic.
* Shutdown after completion. (For version 2 )

Please don't forget the bitrate calculator w/ specified output size for us DVD fanatics.

( I realize it has lesser priority )
  #287  
07-29-2003, 01:44 PM
kwag kwag is offline
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Quote:
Originally Posted by nicksteel
Todo:
* Continued testing higher degree of prediction accuracy.
* Add user precision selection. (For version 2, if necessary )
* Add log file on disk [ Log now copied to Clipboard ]
* Avoid multiple running instances on CQMatic.
* Shutdown after completion. (For version 2 )

Please don't forget the bitrate calculator w/ specified output size for us DVD fanatics.
Sorry, I forgot to put it on that "todo" list, but it's in the list for version 2
I'll edit that post now

Edit:
Added this to the list:
* Integrated Bitrate Calculator with CD, DVD and user specified target sizes. (For version 2)

-kwag
  #288  
07-29-2003, 03:01 PM
nicksteel nicksteel is offline
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* Integrated Bitrate Calculator with CD, DVD and user specified target sizes. (For version 2)

Great! Now that you have a Cyberhome, I think you'll like playing with CDVD.
  #289  
07-29-2003, 03:37 PM
kwag kwag is offline
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Quote:
Originally Posted by nicksteel
* Integrated Bitrate Calculator with CD, DVD and user specified target sizes. (For version 2)

Great! Now that you have a Cyberhome, I think you'll like playing with CDVD.
Maybe with CKDVD
  #290  
07-29-2003, 04:03 PM
nicksteel nicksteel is offline
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Quote:
Originally Posted by kwag
Quote:
Originally Posted by nicksteel
* Integrated Bitrate Calculator with CD, DVD and user specified target sizes. (For version 2)

Great! Now that you have a Cyberhome, I think you'll like playing with CDVD.
Maybe with CKDVD
Would you believe that is what I've been putting on my labels for quite a while now? It seemed pretty logical to me!
  #291  
07-29-2003, 08:02 PM
ozjeff99 ozjeff99 is offline
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Quote:
Originally Posted by tigger
set min = 0.57*avg bitrate, max=2000, predicted cq with cqmatic,
set min to 270, then encoded the movie with the predicted cq, video stream length = 699mb, after muxing : 790 MB !!! SO
Good result tigger. One that I hope to emulate. I'm a little confused. Do we set MIN = .57*avebitrate for prediction purposes then resort back to a different MIN for the encode?

ozjeff99
  #292  
07-29-2003, 08:07 PM
jorel jorel is offline
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no my friend,don't back,
use the result of the formula.

  #293  
07-30-2003, 01:04 AM
kwag kwag is offline
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Version 1.0 Released
(Top of this thread)
Now give it a whirl with DivX, XviD, Interlaced, Progressive, or any sources you can throw at it
Please let me know your results

-kwag
  #294  
07-30-2003, 01:36 AM
vhelp vhelp is offline
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hi Kwag..

I know.. I'm up late..

I'm having some problems w/ your latest update..

Now, it's giving me this error message:

-----------------------------------
For encode mode, 3:2 pulldown when playback can not be used if the flame
rate is not 23.976fps or 24fps.
-----------------------------------

* TMPG v2.53
* Movie: "Dogma"
* 128min
* Ave bit: 733 (my calc)
* min bit: 418 (my calc)
* frames: 184,135.68

Question:
* are you setting up your temp .tpr files for MPEG-1 ??

Thanks for any assist,
-vhelp
  #295  
07-30-2003, 01:39 AM
tigger tigger is offline
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jorel, when i use the min bitrate from prediction, i donīt get good results, well files too big, files very too small...

when i set it back to a different min, to 270, everythings works fine...
canīt explain why...but now iīm fine with cqmatic
  #296  
07-30-2003, 01:45 AM
kwag kwag is offline
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Quote:
Originally Posted by vhelp
Question:
* are you setting up your temp .tpr files for MPEG-1 ??
Hi vhelp,

I don't modify the user .tpr. I create a copy of it, and modify the relevant parameters for prediction only.
Have you tried to load your .tpr after saving it, and click "Start" on TMPEG to see if you get any errors
If it loads fine in TMPEG, and starts encoding without errors, then it should also run fine when CQMatic loads the .tpr.

-kwag
  #297  
07-30-2003, 01:46 AM
vhelp vhelp is offline
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@ Kwag..

Ok, I think I may know what the issue(s) are..

1 - I have an older version TMPG (v2.53 to be exact) and,
2 - some of those .tpr source syntax may not be availble in MY version.

So, what I'm going to do is try another TMPG version (higher) if I can find
any on my hd that I D/L'ed previously.

Sorry for the confusion - I'm sure it's not CQManiac !! hehe CQMATIC !!

Will keep you posted!!
Over and out!
-vhelp
  #298  
07-30-2003, 01:49 AM
kwag kwag is offline
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Quote:
Originally Posted by vhelp

Sorry for the confusion - I'm sure it's not CQManiac !! hehe CQMATIC !!
Well it could be
Just let me know

-kwag
  #299  
07-30-2003, 01:55 AM
vhelp vhelp is offline
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Hi again..

Sorry, I'm back..
Quote:
I don't modify the user .tpr. I create a copy of it, and modify the relevant parameters for prediction only.
Have you tried to load your .tpr after saving it, and click "Start" on TMPEG to see if you get any errors
If it loads fine in TMPEG, and starts encoding without errors, then it should also run fine when CQMatic loads the .tpr.
Actually, I thought you did some .tpr tweaks (your temp files, that is)
but since you said you DON'T, then I'm stumped, since even my later
version TMPG is falling up.

Member my short 258 frames I mentioned ??
..How it's still repeating those same frames ??
..and, (probably didn't mention) but those same 258 frames repeated
from a previous experience, ..say first 20 minutes of a vob - thats the
confusing part, cause it should have (on the whole 128min encode) used
different frames.

also, I made sure that my [ ] Source Range was unchecked. And, resaved
it. And reloaded it w/ you latest version, but it's still [x] checking the
source range anyways. Cause, when I go back into TMPG, (one used in
your CQMATIC) I open the Advance tab, and [x] Source Range is checked
again. BUT, when I load in my .tpr file, the [ ] Source Range is unchecked!

I will try to find a newer TMPG version and test again. If it works, then it's
just a matter of "nailing" the latest (oldest) version TMPG, so that others
don't fall into the same predicament IF anything, at least we know
for sure, what the cut-off is ie, TMPG v2.53

-vhelp
  #300  
07-30-2003, 02:01 AM
vhelp vhelp is offline
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@ Kwag..

Ok, I found a TMPG v2.56

I'll give that one a try !!
-vhelp
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