LV_MAP_MULTI: use reduced probability in EC.
Do not round the lv_map probabilities but instead
reduce the precision of the entropy coder to 9 bits
for all CDFs, and modify operation so that the EC
interval is never 0.
Change-Id: I1b4e51019613106ae3b68519b20637bc0d7b51be
diff --git a/av1/decoder/decodetxb.c b/av1/decoder/decodetxb.c
index ff19776..bc9f05c 100644
--- a/av1/decoder/decodetxb.c
+++ b/av1/decoder/decodetxb.c
@@ -171,7 +171,7 @@
(void)nz_map_count;
int coeff_ctx =
get_nz_map_ctx(levels, c, scan, bwl, height, tx_type, c == *eob - 1);
- int level = av1_read_record_symbol4(
+ int level = av1_read_record_symbol(
counts, r, ec_ctx->coeff_base_cdf[txs_ctx][plane_type][coeff_ctx], 4,
ACCT_STR);
levels[get_paded_idx(scan[c], bwl)] = level;
@@ -289,7 +289,7 @@
#if CONFIG_LV_MAP_MULTI
for (idx = 0; idx < COEFF_BASE_RANGE / (BR_CDF_SIZE - 1); ++idx) {
- int k = av1_read_record_symbol4(
+ int k = av1_read_record_symbol(
counts, r, ec_ctx->coeff_br_cdf[txs_ctx][plane_type][ctx],
BR_CDF_SIZE, ACCT_STR);
*level += k;
