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Improved vp9_ihtllm_c

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As suggested by Yaowu, we can use eob to reduce the complexity
of the vp9_ihtllm_c function.  For the 1080p test clip used, the decoder
performance improved by 17%.

Change-Id: I32486f2f06f9b8f60467d2a574209aa3a3daa435
This commit is contained in:
Scott LaVarnway
2012-12-12 15:49:39 -08:00
parent b192d99f73
commit b575394e21
8 changed files with 77 additions and 49 deletions
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6
vp9/encoder/vp9_encodeintra.c
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@@ -70,7 +70,7 @@ void vp9_encode_intra4x4block(MACROBLOCK *x, int ib) {
if (tx_type != DCT_DCT) {
vp9_fht(be->src_diff, 32, be->coeff, tx_type, 4);
vp9_ht_quantize_b_4x4(be, b, tx_type);
vp9_ihtllm(b->dqcoeff, b->diff, 32, tx_type, 4);
vp9_ihtllm(b->dqcoeff, b->diff, 32, tx_type, 4, b->eob);
} else {
x->vp9_short_fdct4x4(be->src_diff, be->coeff, 32);
x->quantize_b_4x4(be, b) ;
@@ -191,7 +191,7 @@ void vp9_encode_intra8x8(MACROBLOCK *x, int ib) {
tx_type, 8);
x->quantize_b_8x8(x->block + idx, xd->block + idx);
vp9_ihtllm(xd->block[idx].dqcoeff, xd->block[ib].diff, 32,
tx_type, 8);
tx_type, 8, xd->block[idx].eob);
} else {
x->vp9_short_fdct8x8(be->src_diff, (x->block + idx)->coeff, 32);
x->quantize_b_8x8(x->block + idx, xd->block + idx);
@@ -205,7 +205,7 @@ void vp9_encode_intra8x8(MACROBLOCK *x, int ib) {
if (tx_type != DCT_DCT) {
vp9_fht_c(be->src_diff, 32, be->coeff, tx_type, 4);
vp9_ht_quantize_b_4x4(be, b, tx_type);
vp9_ihtllm(b->dqcoeff, b->diff, 32, tx_type, 4);
vp9_ihtllm(b->dqcoeff, b->diff, 32, tx_type, 4, b->eob);
} else {
x->vp9_short_fdct4x4(be->src_diff, be->coeff, 32);
x->quantize_b_4x4(be, b);