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-   -   Bitrates: CQMatic Bug Reports (http://www.digitalfaq.com/archives/encode/4627-bitrates-cqmatic-bug.html)

Krassi 07-23-2003 05:01 AM

Quote:

Originally Posted by Krassi
Right now i'm redoing with Start-CQ=60 to give you more details about sample size etc.

CQ=60.00: Difference: 0.862563
CQ=51.75: Difference: 0.974991
CQ=51.75: Difference: 0.974991
...
m1v.Sample-filesize with 51.75-CQ: 2,392,064 Bytes
m1v-filesize with 51.75-CQ: 3,973,120 Bytes

Any idea :?:

Fiz 07-23-2003 05:08 AM

@krassi,

I have the same problem starting with a CQ of 60.

Code:

CQMatic Versoin 1.0 Beta 1
Copyright Softronex Corporation, 2003
All rights reserved.
Ready!
Project: E:\Encodes\test.tpr
Creating CQMatic.tpr
E:\Encodes\test.m2v
Execute.
Movie Time: 98
Average Bitrate: 996
Executing Prediction Phase...
Using CQ of 60.00
Encoder started...
Encoder end.
Difference = 1.126464
Using CQ of 67.59
Encoder started...
Encoder end.
Difference = 1.030481
Using CQ of 67.59
Encoder started...
Encoder end.
Difference = 1.030481
Using CQ of 67.59
Encoder started...
Process canceled

I cancelled it in the end. I haven't tried by starting with a different base CQ, I'll do that now.

Fiz.

Krassi 07-23-2003 08:38 AM

Quote:

Originally Posted by Fiz
I cancelled it in the end. I haven't tried by starting with a different base CQ, I'll do that now.

Got it working with another CQ at start :?:

J-Wo 07-23-2003 08:52 AM

I'm having the same problem as Krassi and Fiz where after 2 prediction samples, CQMatic keeps sampling at the same CQ! I find that if I cancel and restart with a CQ closer to the "stuck" value, that prediction completes as normal. Very weird bug.

DKruskie 07-23-2003 08:58 AM

I'm having the same problem also with the resampling of the same cq after 2 tries.


David

NismoSX 07-23-2003 10:37 AM

Hey! Same problem with repeating CQ here too!

kwag 07-23-2003 11:35 AM

Working on it ....


-kwag

kwag 07-23-2003 11:45 AM

Please download this: www.kvcd.net/cqmatic-test.exe
Try to use the same starting CQ that continued in a loop.
See if this fixes that.

-kwag

Krassi 07-23-2003 11:55 AM

Quote:

Originally Posted by kwag
See if this fixes that.

The behavior is different :D . The second CQ was 55.88, third was 53.38.

kwag 07-23-2003 12:21 PM

Quote:

Originally Posted by Krassi
Quote:

Originally Posted by kwag
See if this fixes that.

The behavior is different :D . The second CQ was 55.88, third was 53.38.

Great :D
sorry :!: :oops: :imstupid:
:x

The condition shouldn't repeat :!:
I'm updating the regular cqmatic.exe to the same version as that test file now ( BETA 2 )

-kwag

Krassi 07-23-2003 12:23 PM

I'm sorry to inform you that its still there. It only needed about 10 tries to find the same 51.75-value where it hangs. Sorry. :roll: :oops:

kwag 07-23-2003 12:30 PM

Quote:

Originally Posted by Krassi
I'm sorry to inform you that its still there. It only needed about 10 tries to find the same 51.75-value where it hangs. Sorry. :roll: :oops:

:x :x :x :x :x

Thanks :!:
Priority #1 to fix today
Stay tuned :!:

-kwag

kwag 07-23-2003 01:30 PM

Here it is. www.kvcd.net/cqmatic-1.0b3.exe
Please try it again :!:
I believe that if you start with the CQ that always continued to loop from the start, that's the actual CQ to encode, because it's within the precision boundaries. But :imstupid: was running another iteration, instead of exiting at that point :imstupid:

I can't test it, because I haven't seen that condition in my encodes 8O
So please give us feedback :!:


-kwag

Krassi 07-23-2003 01:39 PM

Quote:

Originally Posted by kwag
I can't test it, because I haven't seen that condition in my encodes 8O
So please give us feedback :!:

You bet :D
Doing a test right now. Second CQ is 57.24, third 55.86...56.18...final 56.18.
Have a beer, Kwag :drink:
Well, i have to double-check the new CQ. Its a bit higher than before (56.18 instead of 51.01). Maybe its more accurate now 8) .
Thanks Kwag :!:

kwag 07-23-2003 02:01 PM

Quote:

Originally Posted by Krassi
Quote:

Originally Posted by kwag
I can't test it, because I haven't seen that condition in my encodes 8O
So please give us feedback :!:

You bet :D
Doing a test right now. Second CQ is 57.24, third 55.86...56.18...final 56.18.
Have a beer, Kwag :drink:
Well, i have to double-check the new CQ. Its a bit higher than before (56.18 instead of 51.01). Maybe its more accurate now 8) .
Thanks Kwag :!:

Thanks :D
I'll post BETA 3 now :)
I think that bug was totally squashed ;)

-kwag

Krassi 07-23-2003 03:48 PM

Quote:

Originally Posted by kwag
I think that bug was totally squashed ;)

Thats also what i thougth. Man, this bug has a real big armor :lol: .
It was coming back when encoding a long movie (not the one i encoded previously :evil: .
Maybe this has something to do with start-CQ of 60 or with PAL :?:

EDIT: This time Difference in log doesn't stay at the same value with the same CQ, it varies a little bit.

kwag 07-23-2003 04:06 PM

Quote:

Originally Posted by Krassi
Quote:

Originally Posted by kwag
I think that bug was totally squashed ;)

Thats also what i thougth. Man, this bug has a real big armor :lol:

Do this mean you are experiencing the problem again 8O
With BETA 3 :?:

Krassi 07-23-2003 04:09 PM

Quote:

Originally Posted by kwag
Do this mean you are experiencing the problem again 8O
With BETA 3 :?:

Yep, exactly. With Beta 3 :roll: .

kwag 07-23-2003 04:37 PM

http://www.kvcd.net/cqmatic-1.0b4.exe
Grab it, and let me know :roll:

-kwag

NismoSX 07-23-2003 06:43 PM

Is it normal that one prediction cycle is taking almost 20 minutes to complete? This with a 140 min. movie. It's going real slooooow....
Using the same script in ToK only takes 3-4 minutes on the first cycle.
This with a XP 2500 Barton. (Just upgraded)


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