Thread: XviD Quantizers
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Old 13th April 2012, 23:15   #9  |  Link
LoRd_MuldeR
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Quote:
Originally Posted by sirt View Post
Yes but I don't really know what quantizers will help to obtain the final size intended by the bitrate setted.
And you, as a user, don't have to know

In the bitrate-based encoding modes, like 1-Pass ABR or 2-Pass, the rate-control algorithm will pick the "right" qunatizers to hit the target average(!) bitrate that you have chosen.

By changing the "minimum/maximum quantizer" options you only restrict the interval of quantizers from which the rate-control algorithm can choose - which can easily lead to missing the desired average bitrate!

If, for example, you set both, the minimum and the maximum quantizer, to a value of 1, then you force the rate-control algorithm to always pick 1, regardless of the chosen bitrate

You would only limit the minimum (or maximum) quantizer, if you believe that the rate-control algorithm sometimes goes too high (or too low) for no good reason...
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Last edited by LoRd_MuldeR; 13th April 2012 at 23:24.
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