ref: 62aa642d71bbbdc72dc01da4fb0416be550cd2e2
parent: 541eb7899409914dd0c530bebb2307102f7694a8
author: Jingning Han <jingning@google.com>
date: Wed Jul 6 06:05:51 EDT 2016
Enable uniform quantization with trellis optimization in speed 0 This commit allows the inter prediction residual to use uniform quantization followed by trellis coefficient optimization in speed 0. It improves the coding performance by lowres 0.79% midres 1.07% hdres 1.44% Change-Id: I46ef8cfe042a4ccc7a0055515012cd6cbf5c9619
--- a/vp9/encoder/vp9_encodemb.c
+++ b/vp9/encoder/vp9_encodemb.c
@@ -62,7 +62,7 @@
tran_low_t dqc;
} vp9_token_state;
-static const int plane_rd_mult[REF_TYPES][PLANE_TYPES] ={ {10, 6}, {8, 7}, };+static const int plane_rd_mult[REF_TYPES][PLANE_TYPES] ={ {10, 6}, {8, 5}, };#define UPDATE_RD_COST()\
{\@@ -125,8 +125,8 @@
return pt;
}
-static int optimize_b(MACROBLOCK *mb, int plane, int block,
- TX_SIZE tx_size, int ctx) {+int vp9_optimize_b(MACROBLOCK *mb, int plane, int block,
+ TX_SIZE tx_size, int ctx) {MACROBLOCKD *const xd = &mb->e_mbd;
struct macroblock_plane *const p = &mb->plane[plane];
struct macroblockd_plane *const pd = &xd->plane[plane];
@@ -694,7 +694,7 @@
if (x->optimize && (!x->skip_recode || !x->skip_optimize)) {const int ctx = combine_entropy_contexts(*a, *l);
- *a = *l = optimize_b(x, plane, block, tx_size, ctx) > 0;
+ *a = *l = vp9_optimize_b(x, plane, block, tx_size, ctx) > 0;
} else {*a = *l = p->eobs[block] > 0;
}
@@ -970,7 +970,7 @@
}
}
if (args->ctx != NULL && !x->skip_recode) {- *a = *l = optimize_b(x, plane, block, tx_size, entropy_ctx) > 0;
+ *a = *l = vp9_optimize_b(x, plane, block, tx_size, entropy_ctx) > 0;
}
if (!x->skip_encode && *eob)
vp9_idct32x32_add(dqcoeff, dst, dst_stride, *eob);
@@ -990,7 +990,7 @@
}
}
if (args->ctx != NULL && !x->skip_recode) {- *a = *l = optimize_b(x, plane, block, tx_size, entropy_ctx) > 0;
+ *a = *l = vp9_optimize_b(x, plane, block, tx_size, entropy_ctx) > 0;
}
if (!x->skip_encode && *eob)
vp9_iht16x16_add(tx_type, dqcoeff, dst, dst_stride, *eob);
@@ -1010,7 +1010,7 @@
}
}
if (args->ctx != NULL && !x->skip_recode) {- *a = *l = optimize_b(x, plane, block, tx_size, entropy_ctx) > 0;
+ *a = *l = vp9_optimize_b(x, plane, block, tx_size, entropy_ctx) > 0;
}
if (!x->skip_encode && *eob)
vp9_iht8x8_add(tx_type, dqcoeff, dst, dst_stride, *eob);
@@ -1033,7 +1033,7 @@
}
}
if (args->ctx != NULL && !x->skip_recode) {- *a = *l = optimize_b(x, plane, block, tx_size, entropy_ctx) > 0;
+ *a = *l = vp9_optimize_b(x, plane, block, tx_size, entropy_ctx) > 0;
}
if (!x->skip_encode && *eob) {if (tx_type == DCT_DCT)
--- a/vp9/encoder/vp9_encodemb.h
+++ b/vp9/encoder/vp9_encodemb.h
@@ -23,6 +23,8 @@
struct optimize_ctx *ctx;
int8_t *skip;
};
+int vp9_optimize_b(MACROBLOCK *mb, int plane, int block,
+ TX_SIZE tx_size, int ctx);
void vp9_encode_sb(MACROBLOCK *x, BLOCK_SIZE bsize);
void vp9_encode_sby_pass1(MACROBLOCK *x, BLOCK_SIZE bsize);
void vp9_xform_quant_fp(MACROBLOCK *x, int plane, int block, int row, int col,
--- a/vp9/encoder/vp9_rdopt.c
+++ b/vp9/encoder/vp9_rdopt.c
@@ -602,9 +602,9 @@
return;
if (!is_inter_block(mi)) {- struct encode_b_args arg = {x, NULL, &mi->skip};+ struct encode_b_args intra_arg = {x, NULL, &mi->skip};vp9_encode_block_intra(plane, block, blk_row, blk_col, plane_bsize, tx_size,
- &arg);
+ &intra_arg);
if (args->cpi->sf.txfm_domain_distortion) {dist_block(args->cpi, x, plane, block, blk_row, blk_col, tx_size, &dist,
&sse);
@@ -635,6 +635,8 @@
SKIP_TXFM_NONE) {// full forward transform and quantization
vp9_xform_quant(x, plane, block, blk_row, blk_col, plane_bsize, tx_size);
+ if (args->cpi->sf.quant_coeff_opt)
+ vp9_optimize_b(x, plane, block, tx_size, coeff_ctx);
dist_block(args->cpi, x, plane, block, blk_row, blk_col, tx_size, &dist,
&sse);
} else if (x->skip_txfm[(plane << 2) + (block >> (tx_size << 1))] ==
@@ -668,6 +670,8 @@
} else {// full forward transform and quantization
vp9_xform_quant(x, plane, block, blk_row, blk_col, plane_bsize, tx_size);
+ if (args->cpi->sf.quant_coeff_opt)
+ vp9_optimize_b(x, plane, block, tx_size, coeff_ctx);
dist_block(args->cpi, x, plane, block, blk_row, blk_col, tx_size, &dist,
&sse);
}
--- a/vp9/encoder/vp9_speed_features.c
+++ b/vp9/encoder/vp9_speed_features.c
@@ -163,6 +163,7 @@
sf->intra_y_mode_mask[TX_16X16] = INTRA_DC_H_V;
sf->intra_uv_mode_mask[TX_16X16] = INTRA_DC_H_V;
sf->txfm_domain_distortion = 1;
+ sf->quant_coeff_opt = 0;
}
if (speed >= 2) {@@ -281,6 +282,7 @@
if (speed >= 1) {sf->txfm_domain_distortion = 1;
+ sf->quant_coeff_opt = 0;
sf->use_square_partition_only = !frame_is_intra_only(cm);
sf->less_rectangular_check = 1;
sf->tx_size_search_method = frame_is_intra_only(cm) ? USE_FULL_RD
@@ -544,6 +546,7 @@
sf->adaptive_interp_filter_search = 0;
sf->allow_partition_search_skip = 0;
sf->txfm_domain_distortion = 0;
+ sf->quant_coeff_opt = 1;
for (i = 0; i < TX_SIZES; i++) {sf->intra_y_mode_mask[i] = INTRA_ALL;
--- a/vp9/encoder/vp9_speed_features.h
+++ b/vp9/encoder/vp9_speed_features.h
@@ -246,9 +246,11 @@
// Coefficient probability model approximation step size
int coeff_prob_appx_step;
- // Use transform domain distortion. Use pixel domain distortion when
- // this flag is set to be zero. The pixel domain distortion computation
- // improves the distortion metric precision.
+ // Enable uniform quantizer followed by trellis coefficient optimization
+ int quant_coeff_opt;
+
+ // Use transform domain distortion. Use pixel domain distortion in speed 0
+ // and certain situations in higher speed to improve the RD model precision.
int txfm_domain_distortion;
// The threshold is to determine how slow the motino is, it is used when