From: Jonathan Rosser <[EMAIL PROTECTED]>
Signed-off-by: David Flynn <[EMAIL PROTECTED]>
---
schroedinger/schroarith.h | 27 ++++++++++++++-------------
1 files changed, 14 insertions(+), 13 deletions(-)
diff --git a/schroedinger/schroarith.h b/schroedinger/schroarith.h
index a250fc0..7d346ea 100644
--- a/schroedinger/schroarith.h
+++ b/schroedinger/schroarith.h
@@ -157,19 +157,6 @@ _schro_arith_decode_bit (SchroArith *arith, unsigned int i)
unsigned int value;
unsigned int lut_index;
- range_x_prob = (arith->range[1] * arith->probabilities[i]) >> 16;
- lut_index = arith->probabilities[i]>>7 & ~1;
-
- value = (arith->code - arith->range[0] >= range_x_prob);
- arith->probabilities[i] += arith->lut[lut_index | value];
-
- if (value) {
- arith->range[0] += range_x_prob;
- arith->range[1] -= range_x_prob;
- } else {
- arith->range[1] = range_x_prob;
- }
-
while (arith->range[1] <= 0x4000) {
arith->range[0] <<= 1;
arith->range[1] <<= 1;
@@ -194,6 +181,20 @@ _schro_arith_decode_bit (SchroArith *arith, unsigned int i)
}
}
+ range_x_prob = (arith->range[1] * arith->probabilities[i]) >> 16;
+ lut_index = arith->probabilities[i]>>7 & ~1;
+
+ value = (arith->code - arith->range[0] >= range_x_prob);
+ arith->probabilities[i] += arith->lut[lut_index | value];
+
+ if (value) {
+ arith->range[0] += range_x_prob;
+ arith->range[1] -= range_x_prob;
+ } else {
+ arith->range[1] = range_x_prob;
+ }
+
+
return value;
}
--
1.5.5
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