optimize decode_bool operation

Change-Id: I7fe44633d29046ddd38c88c00e8520d27ac748bf

optimize decode_bool operation
Change-Id: I7fe44633d29046ddd38c88c00e8520d27ac748bf
9f37d890 · Yaowu Xu · dde8069e · 9f37d890
Commit 9f37d890 authored Nov 04, 2013 by Yaowu Xu
Hide whitespace changes
Inline Side-by-side

Showing with 1 addition and 1 deletion

vp9/decoder/vp9_dboolhuff.h vp9/decoder/vp9_dboolhuff.h +1 -1

No files found.
--- a/vp9/decoder/vp9_dboolhuff.h
+++ b/vp9/decoder/vp9_dboolhuff.h
@@ -44,7 +44,7 @@ static int vp9_read(vp9_reader *br, int probability) {
  VP9_BD_VALUE bigsplit;
  int count;
  unsigned int range;
-  unsigned int split = 1 + (((br->range - 1) * probability) >> 8);
+  unsigned int split = ((br->range * probability) + (256 - probability)) >> 8;

  if (br->count < 0)
    vp9_reader_fill(br);