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-   -   TMPGEnc: should it change the CQ value? (http://www.digitalfaq.com/archives/encode/13055-tmpgenc-change-cq.html)

Shibblet 12-18-2004 10:26 PM

TMPGEnc: should it change the CQ value?
 
I re-encoded Van Helsing from VOB again in order to test the new encoder.
The first time I ran Van Helsing, this was my info...
Code:

KVCD Format 704x480 - 1.40gb (NTSC)
DVD2AVI v 1.76 Forced Film
Target 2 CD's - 128k CBR Audio

MPEG-1
Max Bitrate 2376 - Min 300
CQ-Value 70.49
High Quality
TMPEG Ver. 2.521.58.169
23.976 FPS - Progressive

AVISYNTH
Mpeg2Source("D:\Video\Rips\VH.d2v")
BicubicResize(672, 336, 0, 0.6, 0, 9, 720, 461)
FaeryDust(limit=2)
UnFilter(50, 50)
TemporalSmoother(1, 2)
MergeChroma(blur(1.58))
MergeLuma(blur(0.2))
AddBorders(16, 72, 16, 72)

The second time I ran Van Helsing with the new encoder, I used this...
Code:

KVCD Format 704x480 - 1.50gb (NTSC)
DVD2AVI v 1.76 Forced Film
Target 2 CD's - 128k CBR Audio

MPEG-1
Max Bitrate 2376 - Min 300
CQ-Value 59.78
High Quality
TMPEG Ver. 2.524.63.181
23.976 FPS - Progressive

AVISYNTH
Mpeg2Source("D:\Video\Rips\VH.d2v")
UnDot()
FluxSmoothST()
TemporalCleaner(5,10)
BicubicResize(672, 320, 0, 0.6, 0, 8, 720, 456)
AddBorders(16, 80, 16, 80)

Now I know that the borders and filters are different, but should it change the CQ value by that much?!?!? Plus the file size is bigger.

Also, ol Kwagster there encoded Red Planet (About 90 minutes) into 1 CD at about 70CQ.
http://www.kvcd.net/forum/viewtopic.php?t=15331

The ratio just doesn't add up... Am I doing something wrong?

kwag 12-18-2004 10:31 PM

Hi Shibblet,

In order to make a proper comparison, your scripts must be identical.
They are not :!:
And that can make such a big difference.

-kwag

Shibblet 12-18-2004 10:43 PM

Well Poo!

Did you notice anything when you did Red Planet?

kwag 12-18-2004 10:54 PM

Quote:

Originally Posted by Shibblet
Well Poo!

Did you notice anything when you did Red Planet?

:lol:
I'm working on a new version of CQMatic ;)
I haven't really done any file size comparisions between versions.
My goal is to be able to take any source with CQMatic, with no matter what filters, and produce a very close to desired final file size.
I've been coding ALL day :!:

Just stay tuned :cool:

http://www.digitalfaq.com/archives/error.gif


-kwag


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