Prevent bitstream from signaling illegal compound types
Currently nothing forbids wedge from being signalled when
the block is > 32X32, even though there is no corresponding wedge
mask for that block size.
BUG=aomedia:640
BUG=aomedia:636
Change-Id: I538be0229a12b5ef01b2e5a950c9f16ef9a5c51e
diff --git a/av1/decoder/decodemv.c b/av1/decoder/decodemv.c
index fe16c1b..7590200 100644
--- a/av1/decoder/decodemv.c
+++ b/av1/decoder/decodemv.c
@@ -2751,10 +2751,17 @@
if (is_any_masked_compound_used(bsize)) {
#if CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE
if (cm->allow_masked_compound) {
- mbmi->interinter_compound_type = aom_read_symbol(
- r, ec_ctx->compound_type_cdf[bsize], COMPOUND_TYPES, ACCT_STR);
+#if CONFIG_WEDGE && CONFIG_COMPOUND_SEGMENT
+ if (!is_interinter_compound_used(COMPOUND_WEDGE, bsize))
+ mbmi->interinter_compound_type =
+ aom_read_bit(r, ACCT_STR) ? COMPOUND_AVERAGE : COMPOUND_SEG;
+ else
+#endif // CONFIG_WEDGE && CONFIG_COMPOUND_SEGMENT
+ mbmi->interinter_compound_type = aom_read_symbol(
+ r, ec_ctx->compound_type_cdf[bsize], COMPOUND_TYPES, ACCT_STR);
#if CONFIG_WEDGE
if (mbmi->interinter_compound_type == COMPOUND_WEDGE) {
+ assert(is_interinter_compound_used(COMPOUND_WEDGE, bsize));
mbmi->wedge_index =
aom_read_literal(r, get_wedge_bits_lookup(bsize), ACCT_STR);
mbmi->wedge_sign = aom_read_bit(r, ACCT_STR);
diff --git a/av1/encoder/bitstream.c b/av1/encoder/bitstream.c
index 21d3c9b..4773be3 100644
--- a/av1/encoder/bitstream.c
+++ b/av1/encoder/bitstream.c
@@ -2110,10 +2110,16 @@
is_any_masked_compound_used(bsize)) {
#if CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE
if (cm->allow_masked_compound) {
- aom_write_symbol(w, mbmi->interinter_compound_type,
- ec_ctx->compound_type_cdf[bsize], COMPOUND_TYPES);
+#if CONFIG_WEDGE && CONFIG_COMPOUND_SEGMENT
+ if (!is_interinter_compound_used(COMPOUND_WEDGE, bsize))
+ aom_write_bit(w, mbmi->interinter_compound_type == COMPOUND_AVERAGE);
+ else
+#endif // CONFIG_WEDGE && CONFIG_COMPOUND_SEGMENT
+ aom_write_symbol(w, mbmi->interinter_compound_type,
+ ec_ctx->compound_type_cdf[bsize], COMPOUND_TYPES);
#if CONFIG_WEDGE
- if (mbmi->interinter_compound_type == COMPOUND_WEDGE) {
+ if (is_interinter_compound_used(COMPOUND_WEDGE, bsize) &&
+ mbmi->interinter_compound_type == COMPOUND_WEDGE) {
aom_write_literal(w, mbmi->wedge_index, get_wedge_bits_lookup(bsize));
aom_write_bit(w, mbmi->wedge_sign);
}
diff --git a/av1/encoder/rdopt.c b/av1/encoder/rdopt.c
index 4aec878..2f413f7 100644
--- a/av1/encoder/rdopt.c
+++ b/av1/encoder/rdopt.c
@@ -9253,11 +9253,19 @@
tmp_rate_mv = rate_mv;
best_rd_cur = INT64_MAX;
mbmi->interinter_compound_type = cur_type;
+ int masked_type_cost = 0;
+ if (masked_compound_used) {
+#if CONFIG_WEDGE && CONFIG_COMPOUND_SEGMENT
+ if (!is_interinter_compound_used(COMPOUND_WEDGE, bsize))
+ masked_type_cost += av1_cost_literal(1);
+ else
+#endif // CONFIG_WEDGE && CONFIG_COMPOUND_SEGMENT
+ masked_type_cost +=
+ compound_type_cost[mbmi->interinter_compound_type];
+ }
rs2 = av1_cost_literal(get_interinter_compound_type_bits(
bsize, mbmi->interinter_compound_type)) +
- (masked_compound_used
- ? compound_type_cost[mbmi->interinter_compound_type]
- : 0);
+ masked_type_cost;
switch (cur_type) {
case COMPOUND_AVERAGE: