Bitrates: CQmatic Bug Reports - Page 2

kwag · #21 07-21-2003, 10:11 PM

Hi vhelp,

It's not a bug. That's the way CQMatic works. CQMatic sets the source range for prediction

-kwag

BlueBeard · #22 07-22-2003, 06:41 AM

First, great tool kwag!

Now, I don't know if it's a "bug" or not, but I've been having some problems. I'm using KDVD-Full and the current MA script with the addition of Telecide and Decimate after the source line. CQMatic beta 2
just can't seem to lock on a predicted file size. I've let it run for as long as 2 hours. When I remove Telecide and Decimate, CQ is determined after 3 of 4 sample encodings and is always dead on. I've tried this with 5 different sources and the result is always the same.

Has anyone else experienced this?

kwag · #23 07-22-2003, 09:20 AM

Quote:

Originally Posted by BlueBeard

First, great tool kwag!

Now, I don't know if it's a "bug" or not, but I've been having some problems. I'm using KDVD-Full and the current MA script with the addition of Telecide and Decimate after the source line. CQMatic beta 2
just can't seem to lock on a predicted file size. I've let it run for as long as 2 hours. When I remove Telecide and Decimate, CQ is determined after 3 of 4 sample encodings and is always dead on. I've tried this with 5 different sources and the result is always the same.

Has anyone else experienced this?

Hi BlueBeard,

I've experienced the same, with only movie. But the other 5 I did didn't have Telecide and Decimate, so it's a prediction issue and not a IVTC issue

I'll be working on the program heavily today, and hopefully I'll have BETA 3 up tonight

-kwag

J-Wo · #24 07-22-2003, 10:39 AM

hey kwag. ya I have an 87 min babylon 5 dvd (2 eps) that I'm trying to encode, and cqmatic keeps cycling between CQ 64.69 and 63.50 during its prediction cycle... so not quite sure what's going on! This is with beta 2

kwag · #25 07-22-2003, 10:44 AM

Quote:

Originally Posted by J-Wo

hey kwag. ya I have an 87 min babylon 5 dvd (2 eps) that I'm trying to encode, and cqmatic keeps cycling between CQ 64.69 and 63.50 during its prediction cycle... so not quite sure what's going on! This is with beta 2

Yep, I'll be working specifically on that today

-kwag

Razorblade2000 · #26 07-22-2003, 03:45 PM

Hmmm... funny...

2 Windows pop up after I click start... (only appearing for milliseconds) then they close... after that TMPGEnc pops up and displays an "Illegal Stream Format"

The windows that pop up are TMPGEnc ones!?
CQ goes up to 100 as sample size = 0 (Difference = -2179393

kwag · #27 07-22-2003, 03:52 PM

Hi Razorblade,

There's a problem in your .tpr project file. Make sure you saved it as a "TEXT" project.
And make sure you reset your source range and Cut edit to defaults, before you save your project.

-kwak

Razorblade2000 · #28 07-22-2003, 03:54 PM

ohhhh... so no clipping?!

kwag · #29 07-22-2003, 03:57 PM

Quote:

Originally Posted by Razorblade2000

ohhhh... so no clipping?!

If you mean cropping of frame clipping, sure you can! But no source range selected

-kwag

Avalon · #30 07-22-2003, 03:58 PM

Quote:

Originally Posted by kwag

And make sure you reset your source range and Cut edit to defaults, before you save your project

I think I should add this to the guide...

Razorblade2000 · #31 07-22-2003, 03:58 PM

It isn't selected

hmmmm

P.S. Ohhhh... everytime these windows pop up, there is this error... and if I click it away, he'll encode the full clip

P.P.S. Hmmmm... not everytime... only sometimes

kwag · #32 07-22-2003, 04:02 PM

What version of TMPEG are you using

Razorblade2000 · #33 07-22-2003, 04:03 PM

It worked with my first try... so it should work with this one also...

I use:
2.520.54.163 Plus

kwag · #34 07-22-2003, 04:06 PM

That's my version too, and I've had zero problems, as long as I save my .tpr as text and cleared source range

-kwag

Razorblade2000 · #35 07-22-2003, 04:15 PM

Seems as if CQMatic changed my tpr file... even if sourcerange isn't checked... just a sec...

Razorblade2000 · #36 07-22-2003, 04:17 PM

right...
source range was unchecked... but i had to doubleclick it... then set ir back to default (including a "out of bouds" error msg)!!!

fabrice · #37 07-23-2003, 01:02 AM

Hi,

As tmpgenc was just 'flashing', I tried opening the generated tpr file, and I get this error.

After looking at the CQMatic.tpr file, I see that line 1589 is like that:

Code:

  item
    StartTime = 5445
    Length = 0.25
  end
  item
    StartTime = 5460
    Length = 0.25
  end>
   item
     StartTime = 15

As if the range was already selected...
After a look at tmpgenc, I had to do what Razorblade2000 did: doubleclick on Source Range (even if it wasn't selected), accept all errors it gives me, and save this new project.

This way it work. So Isn't it possible that CQMatic clear all Range information before writing his own ones?

Thanks & Salu2

kwag · #38 07-23-2003, 01:11 AM

Quote:

Originally Posted by fabrice

So Isn't it possible that CQMatic clear all Range information before writing his own ones?

Thanks & Salu2

Not really, because I don't know the state of everyone's .tpr file, so I have to start from a correct "default" .tpr file.
There are so many conditions that you can set in a project file, that any structure change, would require an excesive amount of file parsing to figure out each one's .tpr file. And that's a programming nightmare

-kwag

Krassi · #39 07-23-2003, 02:47 AM

Just had the same error with Illegal Stream Format. Source Range was unchecked.
Got it working with a doubleclick on Source Range, Discard, Confirm error message (floating error) and then assigned start to start frame and end to end frame. Then i left this window and unchecked source range once again. Saved project as textfile and it worked

.

Krassi · #40 07-23-2003, 04:43 AM

Just had a bug:
I removed all filters from my avs and started with a CQ of 60. Then CQMatic did prediction and next CQ was 51.75. Next was 51.75 and again and again

.

Then i started with a CQ of 50 instead of 60, next CQ was 52.36, then 50.74, 51.28, finally 51.01.

Movie Details: Length of video 23 minutes, Average Bitrate=1111, wanted video filesize: 188.61 MB.

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

BTW: I think a log file would be great for posting predicition results etc.