Commit 4e7cd38f authored by Jim Bankoski's avatar Jim Bankoski
Browse files

vp9_rd.c: cleanup ugly expression

Change-Id: I066763c2e3ae69ab772bb986da97af9b504f0329
parent 854acfbb
......@@ -220,8 +220,6 @@ void vp9_initialize_rd_consts(VP9_COMP *cpi) {
}
}
static const int MAX_XSQ_Q10 = 245727;
static void model_rd_norm(int xsq_q10, int *r_q10, int *d_q10) {
// NOTE: The tables below must be of the same size.
......@@ -311,10 +309,10 @@ void vp9_model_rd_from_var_lapndz(unsigned int var, unsigned int n,
*dist = 0;
} else {
int d_q10, r_q10;
static const uint32_t MAX_XSQ_Q10 = 245727;
const uint64_t xsq_q10_64 =
((((uint64_t)qstep * qstep * n) << 10) + (var >> 1)) / var;
const int xsq_q10 = xsq_q10_64 > (uint64_t)MAX_XSQ_Q10 ?
(int)MAX_XSQ_Q10 : (int)xsq_q10_64;
const int xsq_q10 = (int)MIN(xsq_q10_64, MAX_XSQ_Q10);
model_rd_norm(xsq_q10, &r_q10, &d_q10);
*rate = (n * r_q10 + 2) >> 2;
*dist = (var * (int64_t)d_q10 + 512) >> 10;
......
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