Quantcast Bitrates: CQ 89.77 but File Size Difference is Positive! - digitalFAQ.com Forums [Archives]
  #1  
12-21-2003, 08:07 PM
daone daone is offline
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I start with a new project, I have short paths and i am stumped!!

Here is my log:

------------------------------------------------------------

http://www.kvcd.net
CQMatic Version 1.2.02
Copyright Softronex Corporation, 2003.
All rights reserved.
Time: 18:01:40 Date: 12/21/2003
Ready!
Project: C:\CQ\Movie.tpr

Creating: CQMatic.tpr

C:\CQ\Movie.mpg
Project resolution: 352x240
Execute.
Movie Time: 99
Average Bitrate: 969
Prediction Only mode
Executing Prediction Phase...
Process started at 18:03:34
On 12/21/2003
CQ set for prediction
Setting up initial sampling.
Using CQ of 60.00
Prediction cycle #1
Encoder started...
Process time: 5.22 minutes.
Encoder end.
File size difference = 2.531386
Low fence: 60.000000
High fence: 90.000000
Last CQ = 60.00
Current CQ = 75.00
CQ difference = 15.000000
Using CQ of 75.00
Prediction cycle #2
Encoder started...
Process time: 5.28 minutes.
Encoder end.
File size difference = 2.080028
Low fence: 75.000000
High fence: 90.000000
Last CQ = 75.00
Current CQ = 82.50
CQ difference = 7.500000
Using CQ of 82.50
Prediction cycle #3
Encoder started...
Process time: 5.33 minutes.
Encoder end.
File size difference = 1.646377
Low fence: 82.500000
High fence: 90.000000
Last CQ = 82.50
Current CQ = 86.25
CQ difference = 3.750000
Using CQ of 86.25
Prediction cycle #4
Encoder started...
Process time: 5.37 minutes.
Encoder end.
File size difference = 1.564722
Low fence: 86.250000
High fence: 90.000000
Last CQ = 86.25
Current CQ = 88.13
CQ difference = 1.875000
Using CQ of 88.13
Prediction cycle #5
Encoder started...
Process time: 5.35 minutes.
Encoder end.
File size difference = 1.561669
Low fence: 88.125000
High fence: 90.000000
Last CQ = 88.13
Current CQ = 89.06
CQ difference = 0.937500
Using CQ of 89.06
Prediction cycle #6
Encoder started...
Process time: 5.37 minutes.
Encoder end.
File size difference = 1.560148
Low fence: 89.062500
High fence: 90.000000
Last CQ = 89.06
Current CQ = 89.53
CQ difference = 0.468750
Using CQ of 89.53
Prediction cycle #7
Encoder started...
Process time: 5.35 minutes.
Encoder end.
File size difference = 1.559008
Low fence: 89.531250
High fence: 90.000000
Last CQ = 89.53
Current CQ = 89.77
CQ difference = 0.234375
Using CQ of 89.77
Prediction cycle #8
Encoder started...
Process time: 5.40 minutes.
Encoder end.
File size difference = 1.558629
Low fence: 89.765625
High fence: 90.000000
Last CQ = 89.77
Current CQ = 89.88
CQ difference = 0.117188
Final CQ value is 89.77
CQMatic complete!
Total minutes of process: 42.73
Process ended at 18:46:18
On 12/21/2003

------------------------------------------------------------


So anyone have a solution???

Any help would be great
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Someday, 12:01 PM
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  #2  
12-21-2003, 09:19 PM
kwag kwag is offline
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Hi daone,

There's nothing wrong with the process

-kwag
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  #3  
12-21-2003, 10:04 PM
daone daone is offline
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Then how come i get a CQ of 89.77 ?

I thought that happened when something went wrong!

Please clear up my confused thoughts
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  #4  
12-21-2003, 10:27 PM
kwag kwag is offline
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Quote:
Originally Posted by daone
Then how come i get a CQ of 89.77 ?
Do you get 89.77 for EVERY movie
I don't think so
It just so happens that for your particular movie, that was the CQ found

-kwag
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  #5  
12-23-2003, 01:20 PM
muhali3 muhali3 is offline
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make sure you have the TMPGenc path set, and that the source range is 0, -1, and whenever you start a project always start it as a new one by going to file-new project. I used to have the exact same problem as you.
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  #6  
12-30-2003, 02:58 PM
TheDJ TheDJ is offline
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Quote:
Originally Posted by daone
Then how come i get a CQ of 89.77 ?

I thought that happened when something went wrong!

Please clear up my confused thoughts
Coz its 'Trial and Error'.....kind of a fluke!
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