$NetBSD: patch-ba,v 1.5 2016/01/24 14:34:11 ryoon Exp $

--- encoder/analyse.c.orig	2016-01-23 21:45:04.000000000 +0000
+++ encoder/analyse.c
@@ -322,7 +322,7 @@ int x264_analyse_init_costs( x264_t *h )
 
     logs[0] = 0.718f;
     for( int i = 1; i <= 2*4*2048; i++ )
-        logs[i] = log2f( i+1 ) * 2.0f + 1.718f;
+        logs[i] = logf(i+1)*2.88539f + 1.718f;
 
     for( int qp = X264_MIN( h->param.rc.i_qp_min, QP_MAX_SPEC ); qp <= h->param.rc.i_qp_max; qp++ )
         if( init_costs( h, logs, qp ) )