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optimize decode_bool operation

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Change-Id: I7fe44633d29046ddd38c88c00e8520d27ac748bf
This commit is contained in:
Yaowu Xu 2013-11-04 14:56:37 -08:00
parent dde8069e57
commit 9f37d89037
1 changed files with 1 additions and 1 deletions
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vp9/decoder/vp9_dboolhuff.h
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@ -44,7 +44,7 @@ static int vp9_read(vp9_reader *br, int probability) {
VP9_BD_VALUE bigsplit; VP9_BD_VALUE bigsplit;
int count; int count;
unsigned int range; 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) if (br->count < 0)
vp9_reader_fill(br); vp9_reader_fill(br);