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-   -   KVCD: Auto_cq or 2-pass vbr? (http://www.digitalfaq.com/archives/encode/1211-kvcd-autocq-pass.html)

new_bee 09-24-2002 09:04 AM

KVCD: Auto_cq or 2-pass vbr?
 
why do you really think auto_cq is better than 2pass vbr? i think if you use vbr, the encoder can give every frame as much bits as it needs. why is it that constant quality gives better results? i noticed some colour-failures when i encoded lord of the rings with kvcd x3 19 % qu (legolas' face went partly green and red sometimes). you won't have such effects with 2pass-vbr, but you'll have blocknoise. can't you get 2pass-vbr to avoid blocknoise but to make such 'colour-failures' instead?

kwag 09-24-2002 02:10 PM

Re: auto_cq or 2pass vbr?
 
Quote:

Originally Posted by new_bee
why do you really think auto_cq is better than 2pass vbr? i think if you use vbr, the encoder can give every frame as much bits as it needs. why is it that constant quality gives better results? i noticed some colour-failures when i encoded lord of the rings with kvcd x3 19 % qu (legolas' face went partly green and red sometimes). you won't have such effects with 2pass-vbr, but you'll have blocknoise. can't you get 2pass-vbr to avoid blocknoise but to make such 'colour-failures' instead?

Take for example a movie like "The Green Mile", which is 3 hours long. Encode it with the KVCD_LBR. It will fit fine on one CD-R.
Now do the same with 2-pass VBR. You won't like the result :wink:

Have a read here: http://216.239.33.100/search?q=cache...enc-modes.html


-kwag


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