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Entropy coding for dynamic ref mv modes

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This commit enables entropy coding for dynamic reference motion
vector modes. The probability model is contexted on the ranking
categories of the reference motion vector candidates.

Change-Id: I09b58d98a409d63ec1a407331e29f8945b7ef17d
This commit is contained in:
Jingning Han
2016-01-21 18:07:31 -08:00
parent afd73539bb
commit 4958987b2a
13 changed files with 169 additions and 25 deletions
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13
vp10/common/entropymode.c
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@@ -184,6 +184,10 @@ static const vpx_prob default_refmv_prob[REFMV_MODE_CONTEXTS] = {
220, 220, 200, 200, 180, 128, 30, 220, 30,
};
static const vpx_prob default_drl_prob[DRL_MODE_CONTEXTS] = {
128, 128, 128,
};
#if CONFIG_EXT_INTER
static const vpx_prob default_new2mv_prob = 180;
#endif
@@ -1292,6 +1296,8 @@ static void init_mode_probs(FRAME_CONTEXT *fc) {
vp10_copy(fc->newmv_prob, default_newmv_prob);
vp10_copy(fc->zeromv_prob, default_zeromv_prob);
vp10_copy(fc->refmv_prob, default_refmv_prob);
vp10_copy(fc->drl_prob0, default_drl_prob);
vp10_copy(fc->drl_prob1, default_drl_prob);
#if CONFIG_EXT_INTER
fc->new2mv_prob = default_new2mv_prob;
#endif // CONFIG_EXT_INTER
@@ -1360,6 +1366,13 @@ void vp10_adapt_inter_frame_probs(VP10_COMMON *cm) {
fc->refmv_prob[i] = mode_mv_merge_probs(pre_fc->refmv_prob[i],
counts->refmv_mode[i]);
for (i = 0; i < DRL_MODE_CONTEXTS; ++i)
fc->drl_prob0[i] = mode_mv_merge_probs(pre_fc->drl_prob0[i],
counts->drl_mode0[i]);
for (i = 0; i < DRL_MODE_CONTEXTS; ++i)
fc->drl_prob1[i] = mode_mv_merge_probs(pre_fc->drl_prob1[i],
counts->drl_mode1[i]);
#if CONFIG_EXT_INTER
fc->new2mv_prob = mode_mv_merge_probs(pre_fc->new2mv_prob,
counts->new2mv_mode);

5
vp10/common/entropymode.h
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@@ -68,6 +68,9 @@ typedef struct frame_contexts {
vpx_prob newmv_prob[NEWMV_MODE_CONTEXTS];
vpx_prob zeromv_prob[ZEROMV_MODE_CONTEXTS];
vpx_prob refmv_prob[REFMV_MODE_CONTEXTS];
vpx_prob drl_prob0[DRL_MODE_CONTEXTS];
vpx_prob drl_prob1[DRL_MODE_CONTEXTS];
#if CONFIG_EXT_INTER
vpx_prob new2mv_prob;
#endif // CONFIG_EXT_INTER
@@ -121,6 +124,8 @@ typedef struct FRAME_COUNTS {
unsigned int newmv_mode[NEWMV_MODE_CONTEXTS][2];
unsigned int zeromv_mode[ZEROMV_MODE_CONTEXTS][2];
unsigned int refmv_mode[REFMV_MODE_CONTEXTS][2];
unsigned int drl_mode0[DRL_MODE_CONTEXTS][2];
unsigned int drl_mode1[DRL_MODE_CONTEXTS][2];
#if CONFIG_EXT_INTER
unsigned int new2mv_mode[2];
#endif // CONFIG_EXT_INTER

2
vp10/common/enums.h
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@@ -231,6 +231,7 @@ typedef enum {
#define NEWMV_MODE_CONTEXTS 7
#define ZEROMV_MODE_CONTEXTS 2
#define REFMV_MODE_CONTEXTS 9
#define DRL_MODE_CONTEXTS 3
#define ZEROMV_OFFSET 3
#define REFMV_OFFSET 4
@@ -251,6 +252,7 @@ typedef enum {
#define MAX_MV_REF_CANDIDATES 2
#if CONFIG_REF_MV
#define MAX_REF_MV_STACK_SIZE 16
#define REF_CAT_LEVEL 160
#endif
#define INTRA_INTER_CONTEXTS 4

3
vp10/common/mvref_common.c
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@@ -329,6 +329,9 @@ static void setup_ref_mv_list(const VP10_COMMON *cm, const MACROBLOCKD *xd,
nearest_refmv_count = *refmv_count;
for (idx = 0; idx < nearest_refmv_count; ++idx)
ref_mv_stack[idx].weight += REF_CAT_LEVEL;
if (prev_frame_mvs_base && cm->show_frame && cm->last_show_frame
&& rf[1] == NONE) {
int ref;

18
vp10/common/mvref_common.h
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@@ -257,6 +257,24 @@ static INLINE int16_t vp10_mode_context_analyzer(
else
return mode_context[rf[0]];
}
static INLINE uint8_t vp10_drl_ctx(const CANDIDATE_MV *ref_mv_stack,
int ref_idx) {
if (ref_mv_stack[ref_idx + 1].weight > REF_CAT_LEVEL &&
ref_mv_stack[ref_idx + 2].weight > REF_CAT_LEVEL)
return 0;
if (ref_mv_stack[ref_idx + 1].weight > REF_CAT_LEVEL &&
ref_mv_stack[ref_idx + 2].weight < REF_CAT_LEVEL)
return 1;
if (ref_mv_stack[ref_idx + 1].weight < REF_CAT_LEVEL &&
ref_mv_stack[ref_idx + 2].weight < REF_CAT_LEVEL)
return 2;
assert(0);
return 0;
}
#endif
typedef void (*find_mv_refs_sync)(void *const data, int mi_row);

9
vp10/common/thread_common.c
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@@ -379,6 +379,15 @@ void vp10_accumulate_frame_counts(VP10_COMMON *cm, FRAME_COUNTS *counts,
for (j = 0; j < 2; ++j)
cm->counts.refmv_mode[i][j] += counts->refmv_mode[i][j];
for (i = 0; i < DRL_MODE_CONTEXTS; ++i)
for (j = 0; j < 2; ++j)
cm->counts.drl_mode0[i][j] += counts->drl_mode0[i][j];
for (i = 0; i < DRL_MODE_CONTEXTS; ++i)
for (j = 0; j < 2; ++j)
cm->counts.drl_mode1[i][j] += counts->drl_mode1[i][j];
#if CONFIG_EXT_INTER
for (j = 0; j < 2; ++j)
cm->counts.new2mv_mode[j] += counts->new2mv_mode[j];

4
vp10/decoder/decodeframe.c
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@@ -132,6 +132,10 @@ static void read_inter_mode_probs(FRAME_CONTEXT *fc, vpx_reader *r) {
vp10_diff_update_prob(r, &fc->zeromv_prob[i]);
for (i = 0; i < REFMV_MODE_CONTEXTS; ++i)
vp10_diff_update_prob(r, &fc->refmv_prob[i]);
for (i = 0; i < DRL_MODE_CONTEXTS; ++i)
vp10_diff_update_prob(r, &fc->drl_prob0[i]);
for (i = 0; i < DRL_MODE_CONTEXTS; ++i)
vp10_diff_update_prob(r, &fc->drl_prob1[i]);
#if CONFIG_EXT_INTER
vp10_diff_update_prob(r, &fc->new2mv_prob);
#endif // CONFIG_EXT_INTER

52
vp10/decoder/decodemv.c
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@@ -147,6 +147,45 @@ static PREDICTION_MODE read_inter_mode(VP10_COMMON *cm, MACROBLOCKD *xd,
#endif
}
#if CONFIG_REF_MV
static void read_drl_idx(const VP10_COMMON *cm,
MACROBLOCKD *xd,
MB_MODE_INFO *mbmi,
vpx_reader *r) {
uint8_t ref_frame_type = vp10_ref_frame_type(mbmi->ref_frame);
mbmi->ref_mv_idx = 0;
if (xd->ref_mv_count[ref_frame_type] > 2) {
uint8_t drl0_ctx = vp10_drl_ctx(xd->ref_mv_stack[ref_frame_type], 0);
vpx_prob drl0_prob = cm->fc->drl_prob0[drl0_ctx];
if (vpx_read(r, drl0_prob)) {
mbmi->ref_mv_idx = 1;
if (xd->counts)
++xd->counts->drl_mode0[drl0_ctx][1];
if (xd->ref_mv_count[ref_frame_type] > 3) {
uint8_t drl1_ctx =
vp10_drl_ctx(xd->ref_mv_stack[ref_frame_type], 1);
vpx_prob drl1_prob = cm->fc->drl_prob1[drl1_ctx];
if (vpx_read(r, drl1_prob)) {
mbmi->ref_mv_idx = 2;
if (xd->counts)
++xd->counts->drl_mode1[drl1_ctx][1];
return;
}
if (xd->counts)
++xd->counts->drl_mode1[drl1_ctx][0];
}
return;
}
if (xd->counts)
++xd->counts->drl_mode0[drl0_ctx][0];
}
}
#endif
#if CONFIG_EXT_INTER
static PREDICTION_MODE read_inter_compound_mode(VP10_COMMON *cm,
MACROBLOCKD *xd,
@@ -1056,17 +1095,8 @@ static void read_inter_block_mode_info(VP10Decoder *const pbi,
#endif // CONFIG_REF_MV && CONFIG_EXT_INTER
r, mode_ctx);
#if CONFIG_REF_MV
if (mbmi->mode == NEARMV) {
uint8_t ref_frame_type = vp10_ref_frame_type(mbmi->ref_frame);
if (xd->ref_mv_count[ref_frame_type] > 2) {
if (vpx_read_bit(r)) {
mbmi->ref_mv_idx = 1;
if (xd->ref_mv_count[ref_frame_type] > 3)
if (vpx_read_bit(r))
mbmi->ref_mv_idx = 2;
}
}
}
if (mbmi->mode == NEARMV)
read_drl_idx(cm, xd, mbmi, r);
#endif
}
}

40
vp10/encoder/bitstream.c
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@@ -177,6 +177,28 @@ static void write_inter_mode(VP10_COMMON *cm,
#endif
}
#if CONFIG_REF_MV
static void write_drl_idx(const VP10_COMMON *cm,
const MB_MODE_INFO *mbmi,
const MB_MODE_INFO_EXT *mbmi_ext,
vpx_writer *w) {
uint8_t ref_frame_type = vp10_ref_frame_type(mbmi->ref_frame);
if (mbmi_ext->ref_mv_count[ref_frame_type] > 2) {
uint8_t drl0_ctx =
vp10_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], 0);
vpx_prob drl0_prob = cm->fc->drl_prob0[drl0_ctx];
vpx_write(w, mbmi->ref_mv_idx != 0, drl0_prob);
if (mbmi_ext->ref_mv_count[ref_frame_type] > 3 &&
mbmi->ref_mv_idx > 0) {
uint8_t drl1_ctx =
vp10_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], 1);
vpx_prob drl1_prob = cm->fc->drl_prob1[drl1_ctx];
vpx_write(w, mbmi->ref_mv_idx != 1, drl1_prob);
}
}
}
#endif
#if CONFIG_EXT_INTER
static void write_inter_compound_mode(VP10_COMMON *cm, vpx_writer *w,
PREDICTION_MODE mode,
@@ -312,7 +334,12 @@ static void update_inter_mode_probs(VP10_COMMON *cm, vpx_writer *w,
for (i = 0; i < REFMV_MODE_CONTEXTS; ++i)
vp10_cond_prob_diff_update(w, &cm->fc->refmv_prob[i],
counts->refmv_mode[i]);
for (i = 0; i < DRL_MODE_CONTEXTS; ++i)
vp10_cond_prob_diff_update(w, &cm->fc->drl_prob0[i],
counts->drl_mode0[i]);
for (i = 0; i < DRL_MODE_CONTEXTS; ++i)
vp10_cond_prob_diff_update(w, &cm->fc->drl_prob1[i],
counts->drl_mode1[i]);
#if CONFIG_EXT_INTER
vp10_cond_prob_diff_update(w, &cm->fc->new2mv_prob, counts->new2mv_mode);
#endif // CONFIG_EXT_INTER
@@ -994,15 +1021,8 @@ static void pack_inter_mode_mvs(VP10_COMP *cpi, const MODE_INFO *mi,
mode_ctx);
#if CONFIG_REF_MV
if (mode == NEARMV) {
uint8_t ref_frame_type = vp10_ref_frame_type(mbmi->ref_frame);
if (mbmi_ext->ref_mv_count[ref_frame_type] > 2) {
vpx_write_bit(w, mbmi->ref_mv_idx != 0);
if (mbmi_ext->ref_mv_count[ref_frame_type] > 3 &&
mbmi->ref_mv_idx > 0)
vpx_write_bit(w, mbmi->ref_mv_idx != 1);
}
}
if (mode == NEARMV)
write_drl_idx(cm, mbmi, mbmi_ext, w);
#endif
}
}

22
vp10/encoder/encodeframe.c
View File

@@ -1822,6 +1822,28 @@ static void update_stats(VP10_COMMON *cm, ThreadData *td
has_second_ref(mbmi),
#endif // CONFIG_EXT_INTER
mode_ctx);
if (mode == NEARMV) {
uint8_t ref_frame_type = vp10_ref_frame_type(mbmi->ref_frame);
if (mbmi_ext->ref_mv_count[ref_frame_type] > 2) {
uint8_t drl0_ctx =
vp10_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], 0);
if (mbmi->ref_mv_idx == 0)
++counts->drl_mode0[drl0_ctx][0];
else
++counts->drl_mode0[drl0_ctx][1];
if (mbmi_ext->ref_mv_count[ref_frame_type] > 3 &&
mbmi->ref_mv_idx > 0) {
uint8_t drl1_ctx =
vp10_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], 1);
if (mbmi->ref_mv_idx == 1)
++counts->drl_mode1[drl1_ctx][0];
else
++counts->drl_mode1[drl1_ctx][1];
}
}
}
#if CONFIG_EXT_INTER
}
#endif // CONFIG_EXT_INTER

2
vp10/encoder/encoder.h
View File

@@ -474,6 +474,8 @@ typedef struct VP10_COMP {
int newmv_mode_cost[NEWMV_MODE_CONTEXTS][2];
int zeromv_mode_cost[ZEROMV_MODE_CONTEXTS][2];
int refmv_mode_cost[REFMV_MODE_CONTEXTS][2];
int drl_mode_cost0[DRL_MODE_CONTEXTS][2];
int drl_mode_cost1[DRL_MODE_CONTEXTS][2];
#if CONFIG_EXT_INTER
int new2mv_mode_cost[2];
#endif // CONFIG_EXT_INTER

10
vp10/encoder/rd.c
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@@ -382,6 +382,16 @@ void vp10_initialize_rd_consts(VP10_COMP *cpi) {
cpi->refmv_mode_cost[i][0] = vp10_cost_bit(cm->fc->refmv_prob[i], 0);
cpi->refmv_mode_cost[i][1] = vp10_cost_bit(cm->fc->refmv_prob[i], 1);
}
for (i = 0; i < DRL_MODE_CONTEXTS; ++i) {
cpi->drl_mode_cost0[i][0] = vp10_cost_bit(cm->fc->drl_prob0[i], 0);
cpi->drl_mode_cost0[i][1] = vp10_cost_bit(cm->fc->drl_prob0[i], 1);
}
for (i = 0; i < DRL_MODE_CONTEXTS; ++i) {
cpi->drl_mode_cost1[i][0] = vp10_cost_bit(cm->fc->drl_prob1[i], 0);
cpi->drl_mode_cost1[i][1] = vp10_cost_bit(cm->fc->drl_prob1[i], 1);
}
#if CONFIG_EXT_INTER
cpi->new2mv_mode_cost[0] = vp10_cost_bit(cm->fc->new2mv_prob, 0);
cpi->new2mv_mode_cost[1] = vp10_cost_bit(cm->fc->new2mv_prob, 1);

14
vp10/encoder/rdopt.c
View File

@@ -6380,7 +6380,9 @@ void vp10_rd_pick_inter_mode_sb(VP10_COMP *cpi,
int ref_idx;
int ref_set = VPXMIN(2, mbmi_ext->ref_mv_count[ref_frame_type] - 2);
rate2 += vp10_cost_bit(128, 0);
uint8_t drl0_ctx =
vp10_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], 0);
rate2 += cpi->drl_mode_cost0[drl0_ctx][0];
if (this_rd < INT64_MAX) {
if (RDCOST(x->rdmult, x->rddiv, rate_y + rate_uv, distortion2) <
@@ -6440,9 +6442,13 @@ void vp10_rd_pick_inter_mode_sb(VP10_COMP *cpi,
dummy_filter_cache);
}
tmp_rate += vp10_cost_bit(128, 1);
if (mbmi_ext->ref_mv_count[ref_frame_type] > 3)
tmp_rate += vp10_cost_bit(128, ref_idx);
tmp_rate += cpi->drl_mode_cost0[drl0_ctx][1];
if (mbmi_ext->ref_mv_count[ref_frame_type] > 3) {
uint8_t drl1_ctx =
vp10_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], 1);
tmp_rate += cpi->drl_mode_cost1[drl1_ctx][ref_idx];
}
if (tmp_alt_rd < INT64_MAX) {
if (RDCOST(x->rdmult, x->rddiv,