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Originally Posted by Blurayhd
And I really want to do that you´re saying I mean, the 2-pass encoding so far I know that option taking the static or ...I don´t know exactly the word, I mean that scenes where is not action or big movements and doesn´t take the same biltrate that the scenes that contains fully action etc and that one need the most biltrate so Bd rebuilder assign dependeing of that scenes the biltrate and decides the final size?
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BDRB doesn't decide what bitrate to apply to various scenes. The x264 encoder does that via the two passes. What BDRB supplies is the resulting target to shoot for, be it a particular bitrate, etc. I personally supply a target bitrate. The CRF is used to target quality, for which the bitrate the computed. JDobbs can better explain what his thinking is for what he does.
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If it is correct how to know what number to put on the first pass and second pass?
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The same number is used for both. The final result would be screwed up if the value was changed between passes.