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Further improvement on compound inter-intra expt

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Adds a special combination mode specific to intra prediciton
mode D45.

Current results with the compound inter/intra experiment:
derf: 0.2%
yt: 0.55%
std-hd: 0.75%
hd: 0.74%

Change-Id: I8976bdf3b9b0b66ab8c5c628bbc62c14fc72ca86
This commit is contained in:
Deb Mukherjee 2013-01-24 15:22:57 -08:00
parent 5f2429259f
commit 3b04d467ac
1 changed files with 15 additions and 1 deletions
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16
vp9/common/vp9_reconintra.c
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@ -393,6 +393,7 @@ static void combine_interintra(MB_PREDICTION_MODE mode,
70, 70, 69, 69, 69, 69, 68, 68,
68, 68, 68, 67, 67, 67, 67, 67,
};
int size_scale = (size >= 64 ? 1:
size == 32 ? 2 :
size == 16 ? 4 :
@ -469,8 +470,21 @@ static void combine_interintra(MB_PREDICTION_MODE mode,
break;
case D45_PRED:
case DC_PRED:
for (i = 0; i < size; ++i) {
for (j = 0; j < size; ++j) {
int k = i * interstride + j;
int scale = (weights1d[i * size_scale] +
weights1d[j * size_scale]) >> 1;
interpred[k] =
((scale_max - scale) * interpred[k] +
scale * intrapred[i * intrastride + j] + scale_round)
>> scale_bits;
}
}
break;
case TM_PRED:
case DC_PRED:
default:
// simple average
for (i = 0; i < size; ++i) {