What does CQ actually do?
 

I know the more the CQ value the better the quality. but i don't really get what it means by quality. what does the cq do to make the picture look better?
does it reduce noise or what?

Thanks 8)

CQ affects how the encoder chooses the bitrate in the range you tell it to use with MinBitrate and MaxBitrate parameters.

The higher the CQ, the most often it will use a bitrate close to the maximum. Your picture will have a lot less noise, but the file lenth will be a lot bigger (because the average birate of the video will be bigger).

so a higher cq means a higher bitrate. so that's why if you have a low maximum bitrate you can have a higher cq.

so would it be better to use 2-pass VBR, if you didn't care about time?

Experiments have prooved than CQ is better than 2-pass VBR. Bytes are used in a better way.

Bits :hihi:

-kwag

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IMO, I think that CQ is the greatest mode to use (for TMPG)
Given enough time well spent on it, you can fine-tune your processes w/ it
and routinely use it w/ joy :)

I can't honestly say I would go back to 2-pass (multi-pass for that matter)
and spend hours (usually double time) to encode something, that a CQ mode
could do in half (and, imo better, given the skills level of the user)
Predition is the only enimey of CQ, however. Its fast becoming a friend (the reverse) :wink:

:!: how about adding this "question & answer" to the link below ??

* KVCD Questions and Answers, links to Problems and Solutions..

..just a thought - you could add more fact to it :roll:

-vhelp

Go ahead and add it :)

-kwag