Removing 'new' probability calculation from convert_distribution().
We don't have to calculate 'new' probability in convert_distribution()
because it is enough to calculate only 'new' counters which could be used
to calculate probability if necessary. That's why removing a lot of unused
temporary probability arrays and reducing number of get_binary_prob()
calls.
Change-Id: I4e14eb7203d1ace61bbddefd6b9b6326be83ba63
diff --git a/vp9/common/vp9_entropy.c b/vp9/common/vp9_entropy.c
index 2640ac7..d3a867c 100644
--- a/vp9/common/vp9_entropy.c
+++ b/vp9/common/vp9_entropy.c
@@ -322,9 +322,8 @@
vp9_coeff_count_model *coef_counts = cm->counts.coef[tx_size];
unsigned int (*eob_branch_count)[REF_TYPES][COEF_BANDS][PREV_COEF_CONTEXTS] =
cm->counts.eob_branch[tx_size];
- int t, i, j, k, l;
+ int i, j, k, l, m;
unsigned int branch_ct[UNCONSTRAINED_NODES][2];
- vp9_prob coef_probs[UNCONSTRAINED_NODES];
for (i = 0; i < BLOCK_TYPES; ++i)
for (j = 0; j < REF_TYPES; ++j)
@@ -332,15 +331,14 @@
for (l = 0; l < PREV_COEF_CONTEXTS; ++l) {
if (l >= 3 && k == 0)
continue;
- vp9_tree_probs_from_distribution(vp9_coefmodel_tree, coef_probs,
- branch_ct, coef_counts[i][j][k][l],
- 0);
+ vp9_tree_probs_from_distribution(vp9_coefmodel_tree, branch_ct,
+ coef_counts[i][j][k][l], 0);
branch_ct[0][1] = eob_branch_count[i][j][k][l] - branch_ct[0][0];
- coef_probs[0] = get_binary_prob(branch_ct[0][0], branch_ct[0][1]);
- for (t = 0; t < UNCONSTRAINED_NODES; ++t)
- dst_coef_probs[i][j][k][l][t] = merge_probs(
- pre_coef_probs[i][j][k][l][t], coef_probs[t],
- branch_ct[t], count_sat, update_factor);
+ for (m = 0; m < UNCONSTRAINED_NODES; ++m)
+ dst_coef_probs[i][j][k][l][m] = merge_probs(
+ pre_coef_probs[i][j][k][l][m],
+ branch_ct[m],
+ count_sat, update_factor);
}
}
