ref: 9e190dfbfe5a5d4662370f6580ff08de3c0a8d01
parent: fffb3be7658ad3c79f79bc69470454aa69f82b73
author: Jim Bankoski <jimbankoski@google.com>
date: Wed Feb 12 09:16:55 EST 2014
fast approximate model_rd_from_var_lapndz Change-Id: Ieceaa16312941992d4a57455e336d625dfe4e094
--- a/vp9/encoder/vp9_rdopt.c
+++ b/vp9/encoder/vp9_rdopt.c
@@ -444,8 +444,21 @@
if (i == 0)
x->pred_sse[ref] = sse;
- if (cpi->sf.use_pick_mode) {- dist_sum += (int)sse;
+
+ // Fast approximate the modelling function.
+ if (cpi->oxcf.cpu_used < -4) {+ int rate;
+ int64_t dist;
+ int64_t square_error = sse;
+ int quantizer = (pd->dequant[1] >> 3);
+
+ if ( quantizer < 120)
+ rate = (square_error * (280-quantizer) )>> 8;
+ else
+ rate = 0;
+ dist = (square_error * quantizer) >> 8;
+ rate_sum += rate;
+ dist_sum += dist;
} else {int rate;
int64_t dist;
--
⑨