[x264-devel] i_qp0_cost_table curiosity

[Tuukka Toivonen]

Just out of curiosity, I wonder where the table
i_qp0_cost_table is derived from. The reference
encoder JM uses sqrt( 2^((qp-12)/3) * 0.85 )
but x264 uses something quite close to
round(sqrt(round(2^((qp-12)/3) )))
when it is 1 or larger, 1 otherwise
(just one number different from this).

I guess this doesn't matter, though...

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