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Cleaning up skip context calculation. 

Renames:
  vp9_get_pred_context_mbskip => vp9_get_skip_context
  vp9_get_pred_prob_mbskip    => vp9_get_skip_prob

Change-Id: I2af499848ef73f3f5cd8cdb27852d0bcdfe31d09
This commit is contained in:
Dmitry Kovalev 2013-12-10 14:11:26 -08:00
Родитель 35b7b0b549
Коммит 2dd20e468a
5 изменённых файлов: 26 добавлений и 43 удалений
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16
vp9/common/vp9_pred_common.h
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@ -40,19 +40,17 @@ static INLINE vp9_prob vp9_get_pred_prob_seg_id(struct segmentation *seg,
return seg->pred_probs[vp9_get_pred_context_seg_id(xd)];
}
static INLINE int vp9_get_pred_context_mbskip(const MACROBLOCKD *xd) {
static INLINE int vp9_get_skip_context(const MACROBLOCKD *xd) {
const MODE_INFO *const above_mi = get_above_mi(xd);
const MODE_INFO *const left_mi = get_left_mi(xd);
const int above_skip_coeff = (above_mi != NULL) ?
above_mi->mbmi.skip_coeff : 0;
const int left_skip_coeff = (left_mi != NULL) ? left_mi->mbmi.skip_coeff : 0;
return above_skip_coeff + left_skip_coeff;
const int above_skip = (above_mi != NULL) ? above_mi->mbmi.skip_coeff : 0;
const int left_skip = (left_mi != NULL) ? left_mi->mbmi.skip_coeff : 0;
return above_skip + left_skip;
}
static INLINE vp9_prob vp9_get_pred_prob_mbskip(const VP9_COMMON *cm,
const MACROBLOCKD *xd) {
return cm->fc.mbskip_probs[vp9_get_pred_context_mbskip(xd)];
static INLINE vp9_prob vp9_get_skip_prob(const VP9_COMMON *cm,
const MACROBLOCKD *xd) {
return cm->fc.mbskip_probs[vp9_get_skip_context(xd)];
}
int vp9_get_pred_context_switchable_interp(const MACROBLOCKD *xd);

2
vp9/decoder/vp9_decodemv.c
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@ -152,7 +152,7 @@ static int read_skip_coeff(VP9_COMMON *cm, const MACROBLOCKD *xd,
if (vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) {
return 1;
} else {
const int ctx = vp9_get_pred_context_mbskip(xd);
const int ctx = vp9_get_skip_context(xd);
const int skip = vp9_read(r, cm->fc.mbskip_probs[ctx]);
if (!cm->frame_parallel_decoding_mode)
++cm->counts.mbskip[ctx][skip];

6
vp9/encoder/vp9_bitstream.c
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@ -121,9 +121,9 @@ static int write_skip_coeff(const VP9_COMP *cpi, int segment_id, MODE_INFO *m,
if (vp9_segfeature_active(&cpi->common.seg, segment_id, SEG_LVL_SKIP)) {
return 1;
} else {
const int skip_coeff = m->mbmi.skip_coeff;
vp9_write(w, skip_coeff, vp9_get_pred_prob_mbskip(&cpi->common, xd));
return skip_coeff;
const int skip = m->mbmi.skip_coeff;
vp9_write(w, skip, vp9_get_skip_prob(&cpi->common, xd));
return skip;
}
}

39
vp9/encoder/vp9_rdopt.c
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@ -772,7 +772,7 @@ static void choose_txfm_size_from_rd(VP9_COMP *cpi, MACROBLOCK *x,
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi;
vp9_prob skip_prob = vp9_get_pred_prob_mbskip(cm, xd);
vp9_prob skip_prob = vp9_get_skip_prob(cm, xd);
int64_t rd[TX_SIZES][2];
int n, m;
int s0, s1;
@ -847,7 +847,7 @@ static void choose_txfm_size_from_modelrd(VP9_COMP *cpi, MACROBLOCK *x,
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi;
vp9_prob skip_prob = vp9_get_pred_prob_mbskip(cm, xd);
vp9_prob skip_prob = vp9_get_skip_prob(cm, xd);
int64_t rd[TX_SIZES][2];
int n, m;
int s0, s1;
@ -2934,7 +2934,7 @@ static int64_t handle_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
x->skip = 1;
// The cost of skip bit needs to be added.
*rate2 += vp9_cost_bit(vp9_get_pred_prob_mbskip(cm, xd), 1);
*rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
// Scaling factor for SSE from spatial domain to frequency domain
// is 16. Adjust distortion accordingly.
@ -3053,13 +3053,12 @@ void vp9_rd_pick_intra_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
if (y_skip && uv_skip) {
*returnrate = rate_y + rate_uv - rate_y_tokenonly - rate_uv_tokenonly +
vp9_cost_bit(vp9_get_pred_prob_mbskip(cm, xd), 1);
vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
*returndist = dist_y + dist_uv;
vp9_zero(ctx->tx_rd_diff);
} else {
int i;
*returnrate = rate_y + rate_uv +
vp9_cost_bit(vp9_get_pred_prob_mbskip(cm, xd), 0);
*returnrate = rate_y + rate_uv + vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
*returndist = dist_y + dist_uv;
if (cpi->sf.tx_size_search_method == USE_FULL_RD)
for (i = 0; i < TX_MODES; i++) {
@ -3470,9 +3469,7 @@ int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
int prob_skip_cost;
// Cost the skip mb case
vp9_prob skip_prob =
vp9_get_pred_prob_mbskip(cm, xd);
vp9_prob skip_prob = vp9_get_skip_prob(cm, xd);
if (skip_prob) {
prob_skip_cost = vp9_cost_bit(skip_prob, 1);
rate2 += prob_skip_cost;
@ -3482,14 +3479,10 @@ int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
if (RDCOST(x->rdmult, x->rddiv, rate_y + rate_uv, distortion2) <
RDCOST(x->rdmult, x->rddiv, 0, total_sse)) {
// Add in the cost of the no skip flag.
int prob_skip_cost = vp9_cost_bit(vp9_get_pred_prob_mbskip(cm, xd),
0);
rate2 += prob_skip_cost;
rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
} else {
// FIXME(rbultje) make this work for splitmv also
int prob_skip_cost = vp9_cost_bit(vp9_get_pred_prob_mbskip(cm, xd),
1);
rate2 += prob_skip_cost;
rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
distortion2 = total_sse;
assert(total_sse >= 0);
rate2 -= (rate_y + rate_uv);
@ -3499,9 +3492,7 @@ int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
}
} else if (mb_skip_allowed) {
// Add in the cost of the no skip flag.
int prob_skip_cost = vp9_cost_bit(vp9_get_pred_prob_mbskip(cm, xd),
0);
rate2 += prob_skip_cost;
rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
}
// Calculate the final RD estimate for this mode.
@ -4244,14 +4235,10 @@ int64_t vp9_rd_pick_inter_mode_sub8x8(VP9_COMP *cpi, MACROBLOCK *x,
if (RDCOST(x->rdmult, x->rddiv, rate_y + rate_uv, distortion2) <
RDCOST(x->rdmult, x->rddiv, 0, total_sse)) {
// Add in the cost of the no skip flag.
int prob_skip_cost = vp9_cost_bit(vp9_get_pred_prob_mbskip(cm, xd),
0);
rate2 += prob_skip_cost;
rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
} else {
// FIXME(rbultje) make this work for splitmv also
int prob_skip_cost = vp9_cost_bit(vp9_get_pred_prob_mbskip(cm, xd),
1);
rate2 += prob_skip_cost;
rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
distortion2 = total_sse;
assert(total_sse >= 0);
rate2 -= (rate_y + rate_uv);
@ -4261,9 +4248,7 @@ int64_t vp9_rd_pick_inter_mode_sub8x8(VP9_COMP *cpi, MACROBLOCK *x,
}
} else if (mb_skip_allowed) {
// Add in the cost of the no skip flag.
int prob_skip_cost = vp9_cost_bit(vp9_get_pred_prob_mbskip(cm, xd),
0);
rate2 += prob_skip_cost;
rate2 += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
}
// Calculate the final RD estimate for this mode.

6
vp9/encoder/vp9_tokenize.c
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@ -281,7 +281,7 @@ void vp9_tokenize_sb(VP9_COMP *cpi, TOKENEXTRA **t, int dry_run,
MACROBLOCKD *const xd = &cpi->mb.e_mbd;
MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi;
TOKENEXTRA *t_backup = *t;
const int mb_skip_context = vp9_get_pred_context_mbskip(xd);
const int ctx = vp9_get_skip_context(xd);
const int skip_inc = !vp9_segfeature_active(&cm->seg, mbmi->segment_id,
SEG_LVL_SKIP);
struct tokenize_b_args arg = {cpi, xd, t, mbmi->tx_size, cpi->mb.token_cache};
@ -289,7 +289,7 @@ void vp9_tokenize_sb(VP9_COMP *cpi, TOKENEXTRA **t, int dry_run,
mbmi->skip_coeff = sb_is_skippable(&cpi->mb, bsize);
if (mbmi->skip_coeff) {
if (!dry_run)
cm->counts.mbskip[mb_skip_context][1] += skip_inc;
cm->counts.mbskip[ctx][1] += skip_inc;
reset_skip_context(xd, bsize);
if (dry_run)
*t = t_backup;
@ -297,7 +297,7 @@ void vp9_tokenize_sb(VP9_COMP *cpi, TOKENEXTRA **t, int dry_run,
}
if (!dry_run) {
cm->counts.mbskip[mb_skip_context][0] += skip_inc;
cm->counts.mbskip[ctx][0] += skip_inc;
foreach_transformed_block(xd, bsize, tokenize_b, &arg);
} else {
foreach_transformed_block(xd, bsize, set_entropy_context_b, &arg);