change to prevent computatio of log(0.0)

Change-Id: I5759f309f94a2b5c1297e6db3735c52986d3ecb2
2013-09-20 16:14:37 -07:00
parent fbb62c6d2b
commit db92356577
1 changed files with 4 additions and 1 deletions
--- a/vp8/encoder/firstpass.c
+++ b/vp8/encoder/firstpass.c
@@ -909,7 +909,10 @@ extern const int vp8_bits_per_mb[2][QINDEX_RANGE];

 static double bitcost( double prob )
 {
-    return -(log( prob ) / log( 2.0 ));
+  if (prob > 0.000122)
+    return -log(prob) / log(2.0);
+  else
+    return 13.0;
 }
 static int64_t estimate_modemvcost(VP8_COMP *cpi,
                                     FIRSTPASS_STATS * fpstats)