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Merge "vp9: Refactor some denoiser logic in vp9_pick_inter_mode."

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Jacky Chen 2016-05-19 23:05:32 +00:00 committed by Gerrit Code Review
commit fa5d54f937
2 changed files with 104 additions and 47 deletions
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12
vp9/encoder/vp9_denoiser.h
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@ -45,6 +45,18 @@ typedef struct vp9_denoiser {
VP9_DENOISER_LEVEL prev_denoising_level;
} VP9_DENOISER;
typedef struct {
int64_t zero_last_cost_orig;
int *ref_frame_cost;
int_mv (*frame_mv)[MAX_REF_FRAMES];
int reuse_inter_pred;
TX_SIZE best_tx_size;
PREDICTION_MODE best_mode;
MV_REFERENCE_FRAME best_ref_frame;
INTERP_FILTER best_pred_filter;
uint8_t best_mode_skip_txfm;
} VP9_PICKMODE_CTX_DEN;
struct VP9_COMP;
void vp9_denoiser_update_frame_info(VP9_DENOISER *denoiser,

139
vp9/encoder/vp9_pickmode.c
View File

@ -1182,6 +1182,90 @@ static void vp9_large_block_mv_bias(const NOISE_ESTIMATE *ne, RD_COST *this_rdc,
}
}
#if CONFIG_VP9_TEMPORAL_DENOISING
static void vp9_pickmode_ctx_den_update(
VP9_PICKMODE_CTX_DEN *ctx_den,
int64_t zero_last_cost_orig,
int ref_frame_cost[MAX_REF_FRAMES],
int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES],
int reuse_inter_pred,
TX_SIZE best_tx_size,
PREDICTION_MODE best_mode,
MV_REFERENCE_FRAME best_ref_frame,
INTERP_FILTER best_pred_filter,
uint8_t best_mode_skip_txfm) {
ctx_den->zero_last_cost_orig = zero_last_cost_orig;
ctx_den->ref_frame_cost = ref_frame_cost;
ctx_den->frame_mv = frame_mv;
ctx_den->reuse_inter_pred = reuse_inter_pred;
ctx_den->best_tx_size = best_tx_size;
ctx_den->best_mode = best_mode;
ctx_den->best_ref_frame = best_ref_frame;
ctx_den->best_pred_filter = best_pred_filter;
ctx_den->best_mode_skip_txfm = best_mode_skip_txfm;
}
static void recheck_zeromv_after_denoising(
VP9_COMP *cpi, MODE_INFO *const mi, MACROBLOCK *x, MACROBLOCKD *const xd,
VP9_DENOISER_DECISION decision, VP9_PICKMODE_CTX_DEN *ctx_den,
struct buf_2d yv12_mb[4][MAX_MB_PLANE], RD_COST *best_rdc, BLOCK_SIZE bsize,
int mi_row, int mi_col) {
// If INTRA or GOLDEN reference was selected, re-evaluate ZEROMV on
// denoised result. Only do this under noise conditions, and if rdcost of
// ZEROMV onoriginal source is not significantly higher than rdcost of best
// mode.
if (cpi->noise_estimate.enabled &&
cpi->noise_estimate.level > kLow &&
ctx_den->zero_last_cost_orig < (best_rdc->rdcost << 3) &&
((ctx_den->best_ref_frame == INTRA_FRAME && decision >= FILTER_BLOCK) ||
(ctx_den->best_ref_frame == GOLDEN_FRAME &&
decision == FILTER_ZEROMV_BLOCK))) {
// Check if we should pick ZEROMV on denoised signal.
int rate = 0;
int64_t dist = 0;
uint32_t var_y = UINT_MAX;
uint32_t sse_y = UINT_MAX;
RD_COST this_rdc;
mi->mode = ZEROMV;
mi->ref_frame[0] = LAST_FRAME;
mi->ref_frame[1] = NONE;
mi->mv[0].as_int = 0;
mi->interp_filter = EIGHTTAP;
xd->plane[0].pre[0] = yv12_mb[LAST_FRAME][0];
vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
model_rd_for_sb_y(cpi, bsize, x, xd, &rate, &dist, &var_y, &sse_y);
this_rdc.rate = rate + ctx_den->ref_frame_cost[LAST_FRAME] +
cpi->inter_mode_cost[x->mbmi_ext->mode_context[LAST_FRAME]]
[INTER_OFFSET(ZEROMV)];
this_rdc.dist = dist;
this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, rate, dist);
// Switch to ZEROMV if the rdcost for ZEROMV on denoised source
// is lower than best_ref mode (on original source).
if (this_rdc.rdcost > best_rdc->rdcost) {
this_rdc = *best_rdc;
mi->mode = ctx_den->best_mode;
mi->ref_frame[0] = ctx_den->best_ref_frame;
mi->interp_filter = ctx_den->best_pred_filter;
if (ctx_den->best_ref_frame == INTRA_FRAME)
mi->mv[0].as_int = INVALID_MV;
else if (ctx_den->best_ref_frame == GOLDEN_FRAME) {
mi->mv[0].as_int = ctx_den->frame_mv[ctx_den->best_mode]
[ctx_den->best_ref_frame].as_int;
if (ctx_den->reuse_inter_pred) {
xd->plane[0].pre[0] = yv12_mb[GOLDEN_FRAME][0];
vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
}
}
mi->tx_size = ctx_den->best_tx_size;
x->skip_txfm[0] = ctx_den->best_mode_skip_txfm;
} else {
ctx_den->best_ref_frame = LAST_FRAME;
*best_rdc = this_rdc;
}
}
}
#endif // CONFIG_VP9_TEMPORAL_DENOISING
void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
TileDataEnc *tile_data,
int mi_row, int mi_col, RD_COST *rd_cost,
@ -1240,6 +1324,7 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
int svc_force_zero_mode[3] = {0};
int perform_intra_pred = 1;
#if CONFIG_VP9_TEMPORAL_DENOISING
VP9_PICKMODE_CTX_DEN ctx_den;
int64_t zero_last_cost_orig = INT64_MAX;
#endif
@ -1849,54 +1934,14 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
cpi->denoiser.denoising_level > kDenLowLow &&
cpi->denoiser.reset == 0) {
VP9_DENOISER_DECISION decision = COPY_BLOCK;
vp9_pickmode_ctx_den_update(&ctx_den, zero_last_cost_orig, ref_frame_cost,
frame_mv, reuse_inter_pred, best_tx_size,
best_mode, best_ref_frame, best_pred_filter,
best_mode_skip_txfm);
vp9_denoiser_denoise(cpi, x, mi_row, mi_col, bsize, ctx, &decision);
// If INTRA or GOLDEN reference was selected, re-evaluate ZEROMV on denoised
// result. Only do this under noise conditions, and if rdcost of ZEROMV on
// original source is not significantly higher than rdcost of best mode.
if (((best_ref_frame == INTRA_FRAME && decision >= FILTER_BLOCK) ||
(best_ref_frame == GOLDEN_FRAME && decision == FILTER_ZEROMV_BLOCK)) &&
cpi->noise_estimate.enabled &&
cpi->noise_estimate.level > kLow &&
zero_last_cost_orig < (best_rdc.rdcost << 3)) {
// Check if we should pick ZEROMV on denoised signal.
int rate = 0;
int64_t dist = 0;
mi->mode = ZEROMV;
mi->ref_frame[0] = LAST_FRAME;
mi->ref_frame[1] = NONE;
mi->mv[0].as_int = 0;
mi->interp_filter = EIGHTTAP;
xd->plane[0].pre[0] = yv12_mb[LAST_FRAME][0];
vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
model_rd_for_sb_y(cpi, bsize, x, xd, &rate, &dist, &var_y, &sse_y);
this_rdc.rate = rate + ref_frame_cost[LAST_FRAME] +
cpi->inter_mode_cost[x->mbmi_ext->mode_context[LAST_FRAME]]
[INTER_OFFSET(ZEROMV)];
this_rdc.dist = dist;
this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, rate, dist);
// Switch to ZEROMV if the rdcost for ZEROMV on denoised source
// is lower than best_ref mode (on original source).
if (this_rdc.rdcost > best_rdc.rdcost) {
this_rdc = best_rdc;
mi->mode = best_mode;
mi->ref_frame[0] = best_ref_frame;
mi->interp_filter = best_pred_filter;
if (best_ref_frame == INTRA_FRAME)
mi->mv[0].as_int = INVALID_MV;
else if (best_ref_frame == GOLDEN_FRAME) {
mi->mv[0].as_int = frame_mv[best_mode][best_ref_frame].as_int;
if (reuse_inter_pred) {
xd->plane[0].pre[0] = yv12_mb[GOLDEN_FRAME][0];
vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
}
}
mi->tx_size = best_tx_size;
x->skip_txfm[0] = best_mode_skip_txfm;
} else {
best_ref_frame = LAST_FRAME;
best_rdc = this_rdc;
}
}
recheck_zeromv_after_denoising(cpi, mi, x, xd, decision, &ctx_den, yv12_mb,
&best_rdc, bsize, mi_row, mi_col);
best_ref_frame = ctx_den.best_ref_frame;
}
#endif