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Unified Diff: source/libvpx/vp8/encoder/quantize.c

Issue 592203002: libvpx: Pull from upstream (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/libvpx/
Patch Set: Created 6 years, 3 months ago
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Index: source/libvpx/vp8/encoder/quantize.c
===================================================================
--- source/libvpx/vp8/encoder/quantize.c (revision 292072)
+++ source/libvpx/vp8/encoder/quantize.c (working copy)
@@ -16,61 +16,10 @@
#include "quantize.h"
#include "vp8/common/quant_common.h"
-#define EXACT_QUANT
-
-#ifdef EXACT_FASTQUANT
void vp8_fast_quantize_b_c(BLOCK *b, BLOCKD *d)
{
int i, rc, eob;
- int zbin;
int x, y, z, sz;
- short *coeff_ptr = b->coeff;
- short *zbin_ptr = b->zbin;
- short *round_ptr = b->round;
- short *quant_ptr = b->quant_fast;
- unsigned char *quant_shift_ptr = b->quant_shift;
- short *qcoeff_ptr = d->qcoeff;
- short *dqcoeff_ptr = d->dqcoeff;
- short *dequant_ptr = d->dequant;
-
- vpx_memset(qcoeff_ptr, 0, 32);
- vpx_memset(dqcoeff_ptr, 0, 32);
-
- eob = -1;
-
- for (i = 0; i < 16; i++)
- {
- rc = vp8_default_zig_zag1d[i];
- z = coeff_ptr[rc];
- zbin = zbin_ptr[rc] ;
-
- sz = (z >> 31); /* sign of z */
- x = (z ^ sz) - sz; /* x = abs(z) */
-
- if (x >= zbin)
- {
- x += round_ptr[rc];
- y = ((((x * quant_ptr[rc]) >> 16) + x)
- * quant_shift_ptr[rc]) >> 16; /* quantize (x) */
- x = (y ^ sz) - sz; /* get the sign back */
- qcoeff_ptr[rc] = x; /* write to destination */
- dqcoeff_ptr[rc] = x * dequant_ptr[rc]; /* dequantized value */
-
- if (y)
- {
- eob = i; /* last nonzero coeffs */
- }
- }
- }
- *d->eob = (char)(eob + 1);
-}
-
-#else
-
-void vp8_fast_quantize_b_c(BLOCK *b, BLOCKD *d)
-{
- int i, rc, eob;
- int x, y, z, sz;
short *coeff_ptr = b->coeff;
short *round_ptr = b->round;
short *quant_ptr = b->quant_fast;
@@ -100,9 +49,6 @@
*d->eob = (char)(eob + 1);
}
-#endif
-
-#ifdef EXACT_QUANT
void vp8_regular_quantize_b_c(BLOCK *b, BLOCKD *d)
{
int i, rc, eob;
@@ -155,117 +101,6 @@
*d->eob = (char)(eob + 1);
}
-/* Perform regular quantization, with unbiased rounding and no zero bin. */
-void vp8_strict_quantize_b_c(BLOCK *b, BLOCKD *d)
-{
- int i;
- int rc;
- int eob;
- int x;
- int y;
- int z;
- int sz;
- short *coeff_ptr;
- short *quant_ptr;
- short *quant_shift_ptr;
- short *qcoeff_ptr;
- short *dqcoeff_ptr;
- short *dequant_ptr;
-
- coeff_ptr = b->coeff;
- quant_ptr = b->quant;
- quant_shift_ptr = b->quant_shift;
- qcoeff_ptr = d->qcoeff;
- dqcoeff_ptr = d->dqcoeff;
- dequant_ptr = d->dequant;
- eob = - 1;
- vpx_memset(qcoeff_ptr, 0, 32);
- vpx_memset(dqcoeff_ptr, 0, 32);
- for (i = 0; i < 16; i++)
- {
- int dq;
- int rounding;
-
- /*TODO: These arrays should be stored in zig-zag order.*/
- rc = vp8_default_zig_zag1d[i];
- z = coeff_ptr[rc];
- dq = dequant_ptr[rc];
- rounding = dq >> 1;
- /* Sign of z. */
- sz = -(z < 0);
- x = (z + sz) ^ sz;
- x += rounding;
- if (x >= dq)
- {
- /* Quantize x. */
- y = ((((x * quant_ptr[rc]) >> 16) + x) * quant_shift_ptr[rc]) >> 16;
- /* Put the sign back. */
- x = (y + sz) ^ sz;
- /* Save the coefficient and its dequantized value. */
- qcoeff_ptr[rc] = x;
- dqcoeff_ptr[rc] = x * dq;
- /* Remember the last non-zero coefficient. */
- if (y)
- eob = i;
- }
- }
-
- *d->eob = (char)(eob + 1);
-}
-
-#else
-
-void vp8_regular_quantize_b_c(BLOCK *b, BLOCKD *d)
-{
- int i, rc, eob;
- int zbin;
- int x, y, z, sz;
- short *zbin_boost_ptr = b->zrun_zbin_boost;
- short *coeff_ptr = b->coeff;
- short *zbin_ptr = b->zbin;
- short *round_ptr = b->round;
- short *quant_ptr = b->quant;
- short *qcoeff_ptr = d->qcoeff;
- short *dqcoeff_ptr = d->dqcoeff;
- short *dequant_ptr = d->dequant;
- short zbin_oq_value = b->zbin_extra;
-
- vpx_memset(qcoeff_ptr, 0, 32);
- vpx_memset(dqcoeff_ptr, 0, 32);
-
- eob = -1;
-
- for (i = 0; i < 16; i++)
- {
- rc = vp8_default_zig_zag1d[i];
- z = coeff_ptr[rc];
-
- zbin = zbin_ptr[rc] + *zbin_boost_ptr + zbin_oq_value;
-
- zbin_boost_ptr ++;
- sz = (z >> 31); /* sign of z */
- x = (z ^ sz) - sz; /* x = abs(z) */
-
- if (x >= zbin)
- {
- y = ((x + round_ptr[rc]) * quant_ptr[rc]) >> 16; /* quantize (x) */
- x = (y ^ sz) - sz; /* get the sign back */
- qcoeff_ptr[rc] = x; /* write to destination */
- dqcoeff_ptr[rc] = x * dequant_ptr[rc]; /* dequantized value */
-
- if (y)
- {
- eob = i; /* last nonzero coeffs */
- zbin_boost_ptr = &b->zrun_zbin_boost[0]; /* reset zrl */
- }
- }
- }
-
- *d->eob = (char)(eob + 1);
-}
-
-#endif
-
void vp8_quantize_mby_c(MACROBLOCK *x)
{
int i;
@@ -403,8 +238,6 @@
};
-#define EXACT_QUANT
-#ifdef EXACT_QUANT
static void invert_quant(int improved_quant, short *quant,
short *shift, short d)
{
@@ -526,69 +359,7 @@
}
}
}
-#else
-void vp8cx_init_quantizer(VP8_COMP *cpi)
-{
- int i;
- int quant_val;
- int Q;
- int zbin_boost[16] = {0, 0, 8, 10, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 44, 44};
-
- for (Q = 0; Q < QINDEX_RANGE; Q++)
- {
- /* dc values */
- quant_val = vp8_dc_quant(Q, cpi->common.y1dc_delta_q);
- cpi->Y1quant[Q][0] = (1 << 16) / quant_val;
- cpi->Y1zbin[Q][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
- cpi->Y1round[Q][0] = (qrounding_factors[Q] * quant_val) >> 7;
- cpi->common.Y1dequant[Q][0] = quant_val;
- 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[Q][0] = (1 << 16) / quant_val;
- cpi->Y2zbin[Q][0] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
- cpi->Y2round[Q][0] = (qrounding_factors_y2[Q] * quant_val) >> 7;
- cpi->common.Y2dequant[Q][0] = quant_val;
- 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[Q][0] = (1 << 16) / quant_val;
- cpi->UVzbin[Q][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;;
- cpi->UVround[Q][0] = (qrounding_factors[Q] * quant_val) >> 7;
- cpi->common.UVdequant[Q][0] = quant_val;
- cpi->zrun_zbin_boost_uv[Q][0] = (quant_val * zbin_boost[0]) >> 7;
-
- /* all the ac values = ; */
- for (i = 1; i < 16; i++)
- {
- int rc = vp8_default_zig_zag1d[i];
-
- quant_val = vp8_ac_yquant(Q);
- cpi->Y1quant[Q][rc] = (1 << 16) / quant_val;
- cpi->Y1zbin[Q][rc] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
- cpi->Y1round[Q][rc] = (qrounding_factors[Q] * quant_val) >> 7;
- cpi->common.Y1dequant[Q][rc] = quant_val;
- 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[Q][rc] = (1 << 16) / quant_val;
- cpi->Y2zbin[Q][rc] = ((qzbin_factors_y2[Q] * quant_val) + 64) >> 7;
- cpi->Y2round[Q][rc] = (qrounding_factors_y2[Q] * quant_val) >> 7;
- cpi->common.Y2dequant[Q][rc] = quant_val;
- 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[Q][rc] = (1 << 16) / quant_val;
- cpi->UVzbin[Q][rc] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
- cpi->UVround[Q][rc] = (qrounding_factors[Q] * quant_val) >> 7;
- cpi->common.UVdequant[Q][rc] = quant_val;
- cpi->zrun_zbin_boost_uv[Q][i] = (quant_val * zbin_boost[i]) >> 7;
- }
- }
-}
-#endif
-
#define ZBIN_EXTRA_Y \
(( cpi->common.Y1dequant[QIndex][1] * \
( x->zbin_over_quant + \
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