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Use the fast quantizer for inter mode selection

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Use the fast quantizer for inter mode selection and the
regular quantizer for the rest of the encode for good quality,
speed 1.  Both performance and quality were improved.  The
quality gains will make up for the quality loss mentioned in
I9dc089007ca08129fb6c11fe7692777ebb8647b0.

Change-Id: Ia90bc9cf326a7c65d60d31fa32f6465ab6984d21
This commit is contained in:
Scott LaVarnway 2010-12-28 14:51:46 -05:00
parent e463b95b4e
commit 516ea8460b
7 changed files with 42 additions and 9 deletions
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2
vp8/encoder/arm/quantize_arm.c
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@ -29,7 +29,7 @@ extern int vp8_fast_quantize_b_neon_func(short *coeff_ptr, short *zbin_ptr, shor
void vp8_fast_quantize_b_neon(BLOCK *b, BLOCKD *d)
{
d->eob = vp8_fast_quantize_b_neon_func(b->coeff, b->zbin, d->qcoeff, d->dqcoeff, d->dequant, vp8_rvsplus1_default_zig_zag1d, b->round, b->quant);
d->eob = vp8_fast_quantize_b_neon_func(b->coeff, b->zbin, d->qcoeff, d->dqcoeff, d->dequant, vp8_rvsplus1_default_zig_zag1d, b->round, b->quant_fast);
}
/*

1
vp8/encoder/block.h
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@ -33,6 +33,7 @@ typedef struct
// 16 Y blocks, 4 U blocks, 4 V blocks each with 16 entries
short *quant;
short *quant_fast;
short *quant_shift;
short *zbin;
short *zrun_zbin_boost;

20
vp8/encoder/encodeframe.c
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@ -179,6 +179,7 @@ void vp8cx_init_quantizer(VP8_COMP *cpi)
{
// dc values
quant_val = vp8_dc_quant(Q, cpi->common.y1dc_delta_q);
cpi->Y1quant_fast[Q][0] = (1 << 16) / quant_val;
vp8cx_invert_quant(cpi->sf.improved_quant, cpi->Y1quant[Q] + 0,
cpi->Y1quant_shift[Q] + 0, quant_val);
cpi->Y1zbin[Q][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
@ -187,6 +188,7 @@ void vp8cx_init_quantizer(VP8_COMP *cpi)
cpi->zrun_zbin_boost_y1[Q][0] = (quant_val * zbin_boost[0]) >> 7;
quant_val = vp8_dc2quant(Q, cpi->common.y2dc_delta_q);
cpi->Y2quant_fast[Q][0] = (1 << 16) / quant_val;
vp8cx_invert_quant(cpi->sf.improved_quant, cpi->Y2quant[Q] + 0,
cpi->Y2quant_shift[Q] + 0, quant_val);
cpi->Y2zbin[Q][0] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
@ -195,6 +197,7 @@ void vp8cx_init_quantizer(VP8_COMP *cpi)
cpi->zrun_zbin_boost_y2[Q][0] = (quant_val * zbin_boost[0]) >> 7;
quant_val = vp8_dc_uv_quant(Q, cpi->common.uvdc_delta_q);
cpi->UVquant_fast[Q][0] = (1 << 16) / quant_val;
vp8cx_invert_quant(cpi->sf.improved_quant, cpi->UVquant[Q] + 0,
cpi->UVquant_shift[Q] + 0, quant_val);
cpi->UVzbin[Q][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;;
@ -208,6 +211,7 @@ void vp8cx_init_quantizer(VP8_COMP *cpi)
int rc = vp8_default_zig_zag1d[i];
quant_val = vp8_ac_yquant(Q);
cpi->Y1quant_fast[Q][rc] = (1 << 16) / quant_val;
vp8cx_invert_quant(cpi->sf.improved_quant, cpi->Y1quant[Q] + rc,
cpi->Y1quant_shift[Q] + rc, quant_val);
cpi->Y1zbin[Q][rc] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
@ -216,6 +220,7 @@ void vp8cx_init_quantizer(VP8_COMP *cpi)
cpi->zrun_zbin_boost_y1[Q][i] = (quant_val * zbin_boost[i]) >> 7;
quant_val = vp8_ac2quant(Q, cpi->common.y2ac_delta_q);
cpi->Y2quant_fast[Q][rc] = (1 << 16) / quant_val;
vp8cx_invert_quant(cpi->sf.improved_quant, cpi->Y2quant[Q] + rc,
cpi->Y2quant_shift[Q] + rc, quant_val);
cpi->Y2zbin[Q][rc] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
@ -224,6 +229,7 @@ void vp8cx_init_quantizer(VP8_COMP *cpi)
cpi->zrun_zbin_boost_y2[Q][i] = (quant_val * zbin_boost[i]) >> 7;
quant_val = vp8_ac_uv_quant(Q, cpi->common.uvac_delta_q);
cpi->UVquant_fast[Q][rc] = (1 << 16) / quant_val;
vp8cx_invert_quant(cpi->sf.improved_quant, cpi->UVquant[Q] + rc,
cpi->UVquant_shift[Q] + rc, quant_val);
cpi->UVzbin[Q][rc] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
@ -325,6 +331,7 @@ void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x)
for (i = 0; i < 16; i++)
{
x->block[i].quant = cpi->Y1quant[QIndex];
x->block[i].quant_fast = cpi->Y1quant_fast[QIndex];
x->block[i].quant_shift = cpi->Y1quant_shift[QIndex];
x->block[i].zbin = cpi->Y1zbin[QIndex];
x->block[i].round = cpi->Y1round[QIndex];
@ -339,6 +346,7 @@ void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x)
for (i = 16; i < 24; i++)
{
x->block[i].quant = cpi->UVquant[QIndex];
x->block[i].quant_fast = cpi->UVquant_fast[QIndex];
x->block[i].quant_shift = cpi->UVquant_shift[QIndex];
x->block[i].zbin = cpi->UVzbin[QIndex];
x->block[i].round = cpi->UVround[QIndex];
@ -349,6 +357,7 @@ void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x)
// Y2
zbin_extra = (cpi->common.Y2dequant[QIndex][1] * ((cpi->zbin_over_quant / 2) + cpi->zbin_mode_boost)) >> 7;
x->block[24].quant_fast = cpi->Y2quant_fast[QIndex];
x->block[24].quant = cpi->Y2quant[QIndex];
x->block[24].quant_shift = cpi->Y2quant_shift[QIndex];
x->block[24].zbin = cpi->Y2zbin[QIndex];
@ -1270,7 +1279,18 @@ int vp8cx_encode_inter_macroblock
if (cpi->sf.RD)
{
/* Are we using the fast quantizer for the mode selection? */
if(cpi->sf.use_fastquant_for_pick)
cpi->mb.quantize_b = QUANTIZE_INVOKE(&cpi->rtcd.quantize, fastquantb);
inter_error = vp8_rd_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate, &distortion, &intra_error);
/* switch back to the regular quantizer for the encode */
if (cpi->sf.improved_quant)
{
cpi->mb.quantize_b = QUANTIZE_INVOKE(&cpi->rtcd.quantize, quantb);
}
}
else
#endif

13
vp8/encoder/onyx_if.c
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@ -591,6 +591,7 @@ void vp8_set_speed_features(VP8_COMP *cpi)
sf->max_fs_radius = 32;
sf->iterative_sub_pixel = 1;
sf->optimize_coefficients = 1;
sf->use_fastquant_for_pick = 0;
sf->first_step = 0;
sf->max_step_search_steps = MAX_MVSEARCH_STEPS;
@ -758,7 +759,7 @@ void vp8_set_speed_features(VP8_COMP *cpi)
cpi->mode_check_freq[THR_SPLITG] = 4;
cpi->mode_check_freq[THR_SPLITA] = 4;
cpi->mode_check_freq[THR_SPLITMV] = 0;
cpi->mode_check_freq[THR_SPLITMV] = 2;
sf->thresh_mult[THR_TM ] = 1500;
sf->thresh_mult[THR_V_PRED ] = 1500;
@ -789,8 +790,7 @@ void vp8_set_speed_features(VP8_COMP *cpi)
sf->thresh_mult[THR_SPLITA ] = 20000;
}
sf->improved_quant = 0;
sf->improved_dct = 0;
sf->use_fastquant_for_pick = 1;
sf->first_step = 1;
sf->max_step_search_steps = MAX_MVSEARCH_STEPS;
@ -798,6 +798,8 @@ void vp8_set_speed_features(VP8_COMP *cpi)
if (Speed > 1)
{
sf->use_fastquant_for_pick = 0;
cpi->mode_check_freq[THR_SPLITG] = 15;
cpi->mode_check_freq[THR_SPLITA] = 15;
cpi->mode_check_freq[THR_SPLITMV] = 7;
@ -831,6 +833,11 @@ void vp8_set_speed_features(VP8_COMP *cpi)
sf->thresh_mult[THR_SPLITA ] = 50000;
}
sf->first_step = 1;
sf->improved_quant = 0;
sf->improved_dct = 0;
// Only do recode loop on key frames, golden frames and
// alt ref frames
sf->recode_loop = 2;

5
vp8/encoder/onyx_int.h
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@ -182,6 +182,8 @@ typedef struct
int first_step;
int optimize_coefficients;
int use_fastquant_for_pick;
} SPEED_FEATURES;
typedef struct
@ -269,6 +271,9 @@ typedef struct
DECLARE_ALIGNED(16, short, zrun_zbin_boost_y1[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, zrun_zbin_boost_y2[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, zrun_zbin_boost_uv[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, Y1quant_fast[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, Y2quant_fast[QINDEX_RANGE][16]);
DECLARE_ALIGNED(16, short, UVquant_fast[QINDEX_RANGE][16]);
MACROBLOCK mb;

4
vp8/encoder/quantize.c
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@ -27,7 +27,7 @@ void vp8_fast_quantize_b_c(BLOCK *b, BLOCKD *d)
short *coeff_ptr = b->coeff;
short *zbin_ptr = b->zbin;
short *round_ptr = b->round;
short *quant_ptr = b->quant;
short *quant_ptr = b->quant_fast;
short *quant_shift_ptr = b->quant_shift;
short *qcoeff_ptr = d->qcoeff;
short *dqcoeff_ptr = d->dqcoeff;
@ -74,7 +74,7 @@ void vp8_fast_quantize_b_c(BLOCK *b, BLOCKD *d)
int x, y, z, sz;
short *coeff_ptr = b->coeff;
short *round_ptr = b->round;
short *quant_ptr = b->quant;
short *quant_ptr = b->quant_fast;
short *qcoeff_ptr = d->qcoeff;
short *dqcoeff_ptr = d->dqcoeff;
short *dequant_ptr = d->dequant;

6
vp8/encoder/x86/x86_csystemdependent.c
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@ -32,7 +32,7 @@ void vp8_fast_quantize_b_mmx(BLOCK *b, BLOCKD *d)
short *coeff_ptr = b->coeff;
short *zbin_ptr = b->zbin;
short *round_ptr = b->round;
short *quant_ptr = b->quant;
short *quant_ptr = b->quant_fast;
short *qcoeff_ptr = d->qcoeff;
short *dqcoeff_ptr = d->dqcoeff;
short *dequant_ptr = d->dequant;
@ -90,7 +90,7 @@ void vp8_fast_quantize_b_sse2(BLOCK *b, BLOCKD *d)
short *scan_mask = vp8_default_zig_zag_mask;//d->scan_order_mask_ptr;
short *coeff_ptr = b->coeff;
short *round_ptr = b->round;
short *quant_ptr = b->quant;
short *quant_ptr = b->quant_fast;
short *qcoeff_ptr = d->qcoeff;
short *dqcoeff_ptr = d->dqcoeff;
short *dequant_ptr = d->dequant;
@ -183,7 +183,7 @@ void vp8_fast_quantize_b_ssse3(BLOCK *b, BLOCKD *d)
d->qcoeff,
d->dequant,
b->round,
b->quant,
b->quant_fast,
d->dqcoeff
);
}