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aomedia/avm/ea8a7a845fdf4a4fdb762824d1c8074683379b36/./av1/encoder/av1_quantize.c
blob: d2820d6e9027cf608bdf4317280d0f7150004add [file]
/*
* Copyright (c) 2021, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 3-Clause Clear License
* and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear
* License was not distributed with this source code in the LICENSE file, you
* can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. If the
* Alliance for Open Media Patent License 1.0 was not distributed with this
* source code in the PATENTS file, you can obtain it at
* aomedia.org/license/patent-license/.
*/
#include <math.h>
#include "config/aom_dsp_rtcd.h"
#include "aom_dsp/quantize.h"
#include "aom_mem/aom_mem.h"
#include "aom_ports/mem.h"
#include "av1/common/entropymode.h"
#include "av1/common/idct.h"
#include "av1/common/quant_common.h"
#include "av1/common/scan.h"
#include "av1/common/seg_common.h"
#include "av1/encoder/av1_quantize.h"
#include "av1/encoder/encoder.h"
#include "av1/encoder/rd.h"
void av1_quantize_skip(intptr_t n_coeffs, tran_low_t *qcoeff_ptr,
tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr) {
memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
*eob_ptr = 0;
}
static void highbd_quantize_fp_helper_c(
const tran_low_t *coeff_ptr, intptr_t count, const int32_t *zbin_ptr,
const int32_t *round_ptr, const int32_t *quant_ptr,
const int32_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
tran_low_t *dqcoeff_ptr, const int32_t *dequant_ptr, uint16_t *eob_ptr,
const int16_t *scan, const int16_t *iscan, const qm_val_t *qm_ptr,
const qm_val_t *iqm_ptr, int log_scale) {
int i;
int eob = -1;
const int shift = 16 - log_scale + QUANT_FP_BITS;
// TODO(jingning) Decide the need of these arguments after the
// quantization process is completed.
(void)zbin_ptr;
(void)quant_shift_ptr;
(void)iscan;
if (qm_ptr || iqm_ptr) {
// Quantization pass: All coefficients with index >= zero_flag are
// skippable. Note: zero_flag can be zero.
for (i = 0; i < count; i++) {
const int rc = scan[i];
const int coeff = coeff_ptr[rc];
const qm_val_t wt = qm_ptr != NULL ? qm_ptr[rc] : (1 << AOM_QM_BITS);
const qm_val_t iwt = iqm_ptr != NULL ? iqm_ptr[rc] : (1 << AOM_QM_BITS);
const int dequant =
(dequant_ptr[rc != 0] * iwt + (1 << (AOM_QM_BITS - 1))) >>
AOM_QM_BITS;
const int coeff_sign = AOMSIGN(coeff);
const int64_t abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
int abs_qcoeff = 0;
if ((((tran_high_t)abs_coeff * wt) << QUANT_TABLE_BITS) >=
((tran_high_t)dequant_ptr[rc != 0]
<< (AOM_QM_BITS - (1 + log_scale)))) {
const int64_t tmp =
abs_coeff + ROUND_POWER_OF_TWO(round_ptr[rc != 0], log_scale);
abs_qcoeff =
(int)((tmp * quant_ptr[rc != 0] * wt) >> (shift + AOM_QM_BITS));
qcoeff_ptr[rc] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign);
const tran_low_t abs_dqcoeff =
(tran_low_t)ROUND_POWER_OF_TWO_64((tran_high_t)abs_qcoeff * dequant,
QUANT_TABLE_BITS) >>
log_scale;
dqcoeff_ptr[rc] = (tran_low_t)((abs_dqcoeff ^ coeff_sign) - coeff_sign);
if (abs_qcoeff) eob = i;
} else {
qcoeff_ptr[rc] = 0;
dqcoeff_ptr[rc] = 0;
}
}
} else {
const int log_scaled_round_arr[2] = {
ROUND_POWER_OF_TWO(round_ptr[0], log_scale),
ROUND_POWER_OF_TWO(round_ptr[1], log_scale),
};
for (i = 0; i < count; i++) {
const int rc = scan[i];
const int coeff = coeff_ptr[rc];
const int rc01 = (rc != 0);
const int coeff_sign = AOMSIGN(coeff);
const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
const int log_scaled_round = log_scaled_round_arr[rc01];
if (((tran_high_t)abs_coeff << (1 + log_scale + QUANT_TABLE_BITS)) >=
(tran_high_t)dequant_ptr[rc01]) {
const int quant = quant_ptr[rc01];
const int dequant = dequant_ptr[rc01];
const int64_t tmp = (int64_t)abs_coeff + log_scaled_round;
const int abs_qcoeff = (int)((tmp * quant) >> shift);
qcoeff_ptr[rc] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign);
const tran_low_t abs_dqcoeff =
(tran_low_t)ROUND_POWER_OF_TWO_64((tran_high_t)abs_qcoeff * dequant,
QUANT_TABLE_BITS) >>
log_scale;
if (abs_qcoeff) eob = i;
dqcoeff_ptr[rc] = (tran_low_t)((abs_dqcoeff ^ coeff_sign) - coeff_sign);
} else {
qcoeff_ptr[rc] = 0;
dqcoeff_ptr[rc] = 0;
}
}
}
*eob_ptr = eob + 1;
}
void av1_highbd_quantize_fp_facade(const tran_low_t *coeff_ptr,
intptr_t n_coeffs, const MACROBLOCK_PLANE *p,
tran_low_t *qcoeff_ptr,
tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr,
const SCAN_ORDER *sc,
const QUANT_PARAM *qparam) {
const qm_val_t *qm_ptr = qparam->qmatrix;
const qm_val_t *iqm_ptr = qparam->iqmatrix;
if (qm_ptr != NULL && iqm_ptr != NULL) {
highbd_quantize_fp_helper_c(
coeff_ptr, n_coeffs, p->zbin_QTX, p->round_fp_QTX, p->quant_fp_QTX,
p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX, eob_ptr,
sc->scan, sc->iscan, qm_ptr, iqm_ptr, qparam->log_scale);
} else {
av1_highbd_quantize_fp(coeff_ptr, n_coeffs, p->zbin_QTX, p->round_fp_QTX,
p->quant_fp_QTX, p->quant_shift_QTX, qcoeff_ptr,
dqcoeff_ptr, p->dequant_QTX, eob_ptr, sc->scan,
sc->iscan, qparam->log_scale);
}
}
void av1_highbd_quantize_b_facade(const tran_low_t *coeff_ptr,
intptr_t n_coeffs, const MACROBLOCK_PLANE *p,
tran_low_t *qcoeff_ptr,
tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr,
const SCAN_ORDER *sc,
const QUANT_PARAM *qparam) {
const qm_val_t *qm_ptr = qparam->qmatrix;
const qm_val_t *iqm_ptr = qparam->iqmatrix;
if (qparam->use_quant_b_adapt) {
if (qm_ptr != NULL && iqm_ptr != NULL) {
aom_highbd_quantize_b_adaptive_helper_c(
coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX,
p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX, eob_ptr,
sc->scan, sc->iscan, qm_ptr, iqm_ptr, qparam->log_scale);
} else {
switch (qparam->log_scale) {
case 0:
aom_highbd_quantize_b_adaptive(
coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX,
p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX,
eob_ptr, sc->scan, sc->iscan);
break;
case 1:
aom_highbd_quantize_b_32x32_adaptive(
coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX,
p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX,
eob_ptr, sc->scan, sc->iscan);
break;
case 2:
aom_highbd_quantize_b_64x64_adaptive(
coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX,
p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX,
eob_ptr, sc->scan, sc->iscan);
break;
default: assert(0);
}
}
} else {
if (qm_ptr != NULL && iqm_ptr != NULL) {
aom_highbd_quantize_b_helper_c(
coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX,
p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX, eob_ptr,
sc->scan, sc->iscan, qm_ptr, iqm_ptr, qparam->log_scale);
} else {
aom_highbd_quantize_b(coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX,
p->quant_QTX, p->quant_shift_QTX, qcoeff_ptr,
dqcoeff_ptr, p->dequant_QTX, eob_ptr, sc->scan,
sc->iscan, qparam->log_scale);
}
}
}
static INLINE void highbd_quantize_dc(
const tran_low_t *coeff_ptr, int n_coeffs, int skip_block,
const int32_t *round_ptr, const int32_t quant, tran_low_t *qcoeff_ptr,
tran_low_t *dqcoeff_ptr, const int32_t dequant_ptr, uint16_t *eob_ptr,
const qm_val_t *qm_ptr, const qm_val_t *iqm_ptr, const int log_scale) {
int eob = -1;
memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
if (!skip_block) {
const qm_val_t wt = qm_ptr != NULL ? qm_ptr[0] : (1 << AOM_QM_BITS);
const qm_val_t iwt = iqm_ptr != NULL ? iqm_ptr[0] : (1 << AOM_QM_BITS);
const int coeff = coeff_ptr[0];
const int coeff_sign = AOMSIGN(coeff);
const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
const int64_t tmp = abs_coeff + ROUND_POWER_OF_TWO(round_ptr[0], log_scale);
const int64_t tmpw = tmp * wt;
const int shift = 16 - log_scale + QUANT_FP_BITS;
const int abs_qcoeff = (int)((tmpw * quant) >> (shift + AOM_QM_BITS));
qcoeff_ptr[0] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign);
const int dequant =
(dequant_ptr * iwt + (1 << (AOM_QM_BITS - 1))) >> AOM_QM_BITS;
const tran_low_t abs_dqcoeff =
(tran_low_t)ROUND_POWER_OF_TWO_64((tran_high_t)abs_qcoeff * dequant,
QUANT_TABLE_BITS) >>
log_scale;
dqcoeff_ptr[0] = (tran_low_t)((abs_dqcoeff ^ coeff_sign) - coeff_sign);
if (abs_qcoeff) eob = 0;
}
*eob_ptr = eob + 1;
}
void av1_highbd_quantize_dc_facade(const tran_low_t *coeff_ptr,
intptr_t n_coeffs, const MACROBLOCK_PLANE *p,
tran_low_t *qcoeff_ptr,
tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr,
const SCAN_ORDER *sc,
const QUANT_PARAM *qparam) {
// obsolete skip_block
const int skip_block = 0;
const qm_val_t *qm_ptr = qparam->qmatrix;
const qm_val_t *iqm_ptr = qparam->iqmatrix;
(void)sc;
highbd_quantize_dc(coeff_ptr, (int)n_coeffs, skip_block, p->round_QTX,
p->quant_fp_QTX[0], qcoeff_ptr, dqcoeff_ptr,
p->dequant_QTX[0], eob_ptr, qm_ptr, iqm_ptr,
qparam->log_scale);
}
void av1_highbd_quantize_fp_c(const tran_low_t *coeff_ptr, intptr_t count,
const int32_t *zbin_ptr, const int32_t *round_ptr,
const int32_t *quant_ptr,
const int32_t *quant_shift_ptr,
tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
const int32_t *dequant_ptr, uint16_t *eob_ptr,
const int16_t *scan, const int16_t *iscan,
int log_scale) {
highbd_quantize_fp_helper_c(coeff_ptr, count, zbin_ptr, round_ptr, quant_ptr,
quant_shift_ptr, qcoeff_ptr, dqcoeff_ptr,
dequant_ptr, eob_ptr, scan, iscan, NULL, NULL,
log_scale);
}
static void invert_quant(int32_t *quant, int32_t *shift, int d) {
uint32_t t;
int l;
t = d;
for (l = 0; t > 1; l++) t >>= 1;
// Alternative with uint64_t:
// const int m2 = (int)(1 + ((uint64_t)1 << (16 + l)) / d);
const int lcap = AOMMIN(l, 15);
const int m = (int)(1 + (1U << (16 + lcap)) / (d >> (l - lcap)));
*quant = (int32_t)(m - (1 << 16));
*shift = 1 << (16 - l + QUANT_TABLE_BITS);
}
static int get_qzbin_factor(int q, int base_y_dc_delta_q,
aom_bit_depth_t bit_depth
#if CONFIG_TCQ
,
int tcq_mode
#endif // CONFIG_TCQ
) {
#if CONFIG_TCQ
const int quant =
av1_dc_quant_QTX_tcq(q, 0, base_y_dc_delta_q, bit_depth, tcq_mode);
#else
const int quant = av1_dc_quant_QTX(q, 0, base_y_dc_delta_q, bit_depth);
#endif // CONFIG_TCQ
switch (bit_depth) {
case AOM_BITS_8:
return q == 0 ? 64 : (quant < (148 << QUANT_TABLE_BITS) ? 84 : 80);
case AOM_BITS_10:
return q == 0 ? 64 : (quant < (592 << QUANT_TABLE_BITS) ? 84 : 80);
case AOM_BITS_12:
return q == 0 ? 64 : (quant < (2368 << QUANT_TABLE_BITS) ? 84 : 80);
default:
assert(0 && "bit_depth should be AOM_BITS_8, AOM_BITS_10 or AOM_BITS_12");
return -1;
}
}
void av1_build_quantizer(aom_bit_depth_t bit_depth, int y_dc_delta_q,
int u_dc_delta_q, int u_ac_delta_q, int v_dc_delta_q,
int v_ac_delta_q, int base_y_dc_delta_q,
int base_uv_dc_delta_q, int base_uv_ac_delta_q,
QUANTS *const quants, Dequants *const deq
#if CONFIG_TCQ
,
int tcq_mode
#endif // CONFIG_TCQ
) {
int i, q, quant_QTX;
int qindex_range = (bit_depth == AOM_BITS_8 ? QINDEX_RANGE_8_BITS
: bit_depth == AOM_BITS_10 ? QINDEX_RANGE_10_BITS
: QINDEX_RANGE);
for (q = 0; q < qindex_range; q++) {
const int qrounding_factor = q == 0 ? 64 : 48;
#if CONFIG_TCQ
const int qzbin_factor =
get_qzbin_factor(q, base_y_dc_delta_q, bit_depth, tcq_mode);
#else
const int qzbin_factor = get_qzbin_factor(q, base_y_dc_delta_q, bit_depth);
#endif // CONFIG_TCQ
for (i = 0; i < 2; ++i) {
int qrounding_factor_fp = 64;
// y quantizer with TX scale
#if CONFIG_TCQ
quant_QTX = i == 0
? av1_dc_quant_QTX_tcq(q, y_dc_delta_q, base_y_dc_delta_q,
bit_depth, tcq_mode)
: av1_ac_quant_QTX_tcq(q, 0, 0, bit_depth, tcq_mode);
invert_quant(&quants->y_quant[q][i], &quants->y_quant_shift[q][i],
quant_QTX);
#else
quant_QTX = i == 0 ? av1_dc_quant_QTX(q, y_dc_delta_q, base_y_dc_delta_q,
bit_depth)
: av1_ac_quant_QTX(q, 0, 0, bit_depth);
invert_quant(&quants->y_quant[q][i], &quants->y_quant_shift[q][i],
quant_QTX);
#endif // CONFIG_TCQ
quants->y_quant_fp[q][i] =
(1 << (16 + QUANT_FP_BITS + QUANT_TABLE_BITS)) / quant_QTX;
quants->y_round_fp[q][i] =
(qrounding_factor_fp * quant_QTX) >> (7 + QUANT_TABLE_BITS);
quants->y_zbin[q][i] =
ROUND_POWER_OF_TWO(qzbin_factor * quant_QTX, (7 + QUANT_TABLE_BITS));
quants->y_round[q][i] =
(qrounding_factor * quant_QTX) >> (7 + QUANT_TABLE_BITS);
deq->y_dequant_QTX[q][i] = quant_QTX;
// u quantizer with TX scale
#if CONFIG_TCQ
quant_QTX =
i == 0 ? av1_dc_quant_QTX_tcq(q, u_dc_delta_q, base_uv_dc_delta_q,
bit_depth, tcq_mode)
: av1_ac_quant_QTX_tcq(q, u_ac_delta_q, base_uv_ac_delta_q,
bit_depth, tcq_mode);
#else
quant_QTX = i == 0 ? av1_dc_quant_QTX(q, u_dc_delta_q, base_uv_dc_delta_q,
bit_depth)
: av1_ac_quant_QTX(q, u_ac_delta_q, base_uv_ac_delta_q,
bit_depth);
#endif // CONFIG_TCQ
invert_quant(&quants->u_quant[q][i], &quants->u_quant_shift[q][i],
quant_QTX);
quants->u_quant_fp[q][i] =
(1 << (16 + QUANT_FP_BITS + QUANT_TABLE_BITS)) / quant_QTX;
quants->u_round_fp[q][i] =
(qrounding_factor_fp * quant_QTX) >> (7 + QUANT_TABLE_BITS);
quants->u_zbin[q][i] =
ROUND_POWER_OF_TWO(qzbin_factor * quant_QTX, (7 + QUANT_TABLE_BITS));
quants->u_round[q][i] =
(qrounding_factor * quant_QTX) >> (7 + QUANT_TABLE_BITS);
deq->u_dequant_QTX[q][i] = quant_QTX;
// v quantizer with TX scale
#if CONFIG_TCQ
quant_QTX =
i == 0 ? av1_dc_quant_QTX_tcq(q, v_dc_delta_q, base_uv_dc_delta_q,
bit_depth, tcq_mode)
: av1_ac_quant_QTX_tcq(q, v_ac_delta_q, base_uv_ac_delta_q,
bit_depth, tcq_mode);
#else
quant_QTX = i == 0 ? av1_dc_quant_QTX(q, v_dc_delta_q, base_uv_dc_delta_q,
bit_depth)
: av1_ac_quant_QTX(q, v_ac_delta_q, base_uv_ac_delta_q,
bit_depth);
#endif // CONFIG_TCQ
invert_quant(&quants->v_quant[q][i], &quants->v_quant_shift[q][i],
quant_QTX);
quants->v_quant_fp[q][i] =
(1 << (16 + QUANT_FP_BITS + QUANT_TABLE_BITS)) / quant_QTX;
quants->v_round_fp[q][i] =
(qrounding_factor_fp * quant_QTX) >> (7 + QUANT_TABLE_BITS);
quants->v_zbin[q][i] =
ROUND_POWER_OF_TWO(qzbin_factor * quant_QTX, (7 + QUANT_TABLE_BITS));
quants->v_round[q][i] =
(qrounding_factor * quant_QTX) >> (7 + QUANT_TABLE_BITS);
deq->v_dequant_QTX[q][i] = quant_QTX;
}
for (i = 2; i < 8; i++) { // 8: SIMD width
quants->y_quant[q][i] = quants->y_quant[q][1];
quants->y_quant_fp[q][i] = quants->y_quant_fp[q][1];
quants->y_round_fp[q][i] = quants->y_round_fp[q][1];
quants->y_quant_shift[q][i] = quants->y_quant_shift[q][1];
quants->y_zbin[q][i] = quants->y_zbin[q][1];
quants->y_round[q][i] = quants->y_round[q][1];
deq->y_dequant_QTX[q][i] = deq->y_dequant_QTX[q][1];
quants->u_quant[q][i] = quants->u_quant[q][1];
quants->u_quant_fp[q][i] = quants->u_quant_fp[q][1];
quants->u_round_fp[q][i] = quants->u_round_fp[q][1];
quants->u_quant_shift[q][i] = quants->u_quant_shift[q][1];
quants->u_zbin[q][i] = quants->u_zbin[q][1];
quants->u_round[q][i] = quants->u_round[q][1];
deq->u_dequant_QTX[q][i] = deq->u_dequant_QTX[q][1];
quants->v_quant[q][i] = quants->u_quant[q][1];
quants->v_quant_fp[q][i] = quants->v_quant_fp[q][1];
quants->v_round_fp[q][i] = quants->v_round_fp[q][1];
quants->v_quant_shift[q][i] = quants->v_quant_shift[q][1];
quants->v_zbin[q][i] = quants->v_zbin[q][1];
quants->v_round[q][i] = quants->v_round[q][1];
deq->v_dequant_QTX[q][i] = deq->v_dequant_QTX[q][1];
}
}
}
void av1_init_quantizer(SequenceHeader *seq_params,
EncQuantDequantParams *const enc_quant_dequant_params,
const AV1_COMMON *const cm) {
const CommonQuantParams *quant_params = &cm->quant_params;
QUANTS *const quants = &enc_quant_dequant_params->quants;
Dequants *const dequants = &enc_quant_dequant_params->dequants;
av1_build_quantizer(seq_params->bit_depth, quant_params->y_dc_delta_q,
quant_params->u_dc_delta_q, quant_params->u_ac_delta_q,
quant_params->v_dc_delta_q, quant_params->v_ac_delta_q,
seq_params->base_y_dc_delta_q,
seq_params->base_uv_dc_delta_q,
seq_params->base_uv_ac_delta_q, quants, dequants
#if CONFIG_TCQ
,
cm->features.tcq_mode
#endif // CONFIG_TCQ
);
}
void av1_init_plane_quantizers(const AV1_COMP *cpi, MACROBLOCK *x,
int segment_id) {
const AV1_COMMON *const cm = &cpi->common;
const CommonQuantParams *const quant_params = &cm->quant_params;
MACROBLOCKD *const xd = &x->e_mbd;
const QUANTS *const quants = &cpi->enc_quant_dequant_params.quants;
const Dequants *const dequants = &cpi->enc_quant_dequant_params.dequants;
int current_qindex = AOMMAX(
0, AOMMIN(cm->seq_params.bit_depth == AOM_BITS_8 ? QINDEX_RANGE_8_BITS - 1
: cm->seq_params.bit_depth == AOM_BITS_10
? QINDEX_RANGE_10_BITS - 1
: QINDEX_RANGE - 1,
cm->delta_q_info.delta_q_present_flag
? quant_params->base_qindex + x->delta_qindex
: quant_params->base_qindex));
const int qindex = av1_get_qindex(&cm->seg, segment_id, current_qindex,
cm->seq_params.bit_depth);
const int rdmult =
av1_compute_rd_mult(cpi, qindex + quant_params->y_dc_delta_q);
const int use_qmatrix = av1_use_qmatrix(quant_params, xd, segment_id);
// Y
x->plane[0].quant_QTX = quants->y_quant[qindex];
x->plane[0].quant_fp_QTX = quants->y_quant_fp[qindex];
x->plane[0].round_fp_QTX = quants->y_round_fp[qindex];
x->plane[0].quant_shift_QTX = quants->y_quant_shift[qindex];
x->plane[0].zbin_QTX = quants->y_zbin[qindex];
x->plane[0].round_QTX = quants->y_round[qindex];
x->plane[0].dequant_QTX = dequants->y_dequant_QTX[qindex];
const int qm_index = quant_params->qm_index[segment_id];
const int qmlevel_y =
use_qmatrix ? quant_params->qm_y[qm_index] : NUM_QM_LEVELS - 1;
memcpy(&xd->plane[0].seg_qmatrix[segment_id],
quant_params->gqmatrix[qmlevel_y][0],
sizeof(quant_params->gqmatrix[qmlevel_y][0]));
memcpy(&xd->plane[0].seg_iqmatrix[segment_id],
quant_params->giqmatrix[qmlevel_y][0],
sizeof(quant_params->giqmatrix[qmlevel_y][0]));
// U
x->plane[1].quant_QTX = quants->u_quant[qindex];
x->plane[1].quant_fp_QTX = quants->u_quant_fp[qindex];
x->plane[1].round_fp_QTX = quants->u_round_fp[qindex];
x->plane[1].quant_shift_QTX = quants->u_quant_shift[qindex];
x->plane[1].zbin_QTX = quants->u_zbin[qindex];
x->plane[1].round_QTX = quants->u_round[qindex];
x->plane[1].dequant_QTX = dequants->u_dequant_QTX[qindex];
const int qmlevel_u =
use_qmatrix ? quant_params->qm_u[qm_index] : NUM_QM_LEVELS - 1;
memcpy(&xd->plane[1].seg_qmatrix[segment_id],
quant_params->gqmatrix[qmlevel_u][1],
sizeof(quant_params->gqmatrix[qmlevel_u][1]));
memcpy(&xd->plane[1].seg_iqmatrix[segment_id],
quant_params->giqmatrix[qmlevel_u][1],
sizeof(quant_params->giqmatrix[qmlevel_u][1]));
// V
x->plane[2].quant_QTX = quants->v_quant[qindex];
x->plane[2].quant_fp_QTX = quants->v_quant_fp[qindex];
x->plane[2].round_fp_QTX = quants->v_round_fp[qindex];
x->plane[2].quant_shift_QTX = quants->v_quant_shift[qindex];
x->plane[2].zbin_QTX = quants->v_zbin[qindex];
x->plane[2].round_QTX = quants->v_round[qindex];
x->plane[2].dequant_QTX = dequants->v_dequant_QTX[qindex];
const int qmlevel_v =
use_qmatrix ? quant_params->qm_v[qm_index] : NUM_QM_LEVELS - 1;
memcpy(&xd->plane[2].seg_qmatrix[segment_id],
quant_params->gqmatrix[qmlevel_v][2],
sizeof(quant_params->gqmatrix[qmlevel_v][2]));
memcpy(&xd->plane[2].seg_iqmatrix[segment_id],
quant_params->giqmatrix[qmlevel_v][2],
sizeof(quant_params->giqmatrix[qmlevel_v][2]));
x->seg_skip_block = segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP);
x->qindex = qindex;
#if DEBUG_EXTQUANT
fprintf(cm->fEncCoeffLog, "\ninit_plane_quantizers\n");
fprintf(cm->fEncCoeffLog, "qindex = %d\n", qindex);
fprintf(cm->fEncCoeffLog, "\nquant_QTX = [%d, %d, %d]",
x->plane[0].quant_QTX[0], x->plane[1].quant_QTX[0],
x->plane[2].quant_QTX[0]);
fprintf(cm->fEncCoeffLog, "\nquant_fp_QTX = [%d, %d, %d]",
x->plane[0].quant_fp_QTX[0], x->plane[1].quant_fp_QTX[0],
x->plane[2].quant_fp_QTX[0]);
fprintf(cm->fEncCoeffLog, "\nround_fp_QTX = [%d, %d, %d]",
x->plane[0].round_fp_QTX[0], x->plane[1].round_fp_QTX[0],
x->plane[2].round_fp_QTX[0]);
fprintf(cm->fEncCoeffLog, "\nquant_shift_QTX = [%d, %d, %d]",
x->plane[0].quant_shift_QTX[0], x->plane[1].quant_shift_QTX[0],
x->plane[2].quant_shift_QTX[0]);
fprintf(cm->fEncCoeffLog, "\nzbin_QTX = [%d, %d, %d]",
x->plane[0].zbin_QTX[0], x->plane[1].zbin_QTX[0],
x->plane[2].zbin_QTX[0]);
fprintf(cm->fEncCoeffLog, "\nround_QTX = [%d, %d, %d]",
x->plane[0].round_QTX[0], x->plane[1].round_QTX[0],
x->plane[2].round_QTX[0]);
fprintf(cm->fEncCoeffLog, "\ndequant_QTX = [%d, %d, %d]\n",
x->plane[0].dequant_QTX[0], x->plane[1].dequant_QTX[0],
x->plane[2].dequant_QTX[0]);
#endif
MvCosts *mv_costs = &x->mv_costs;
av1_set_error_per_bit(mv_costs, rdmult);
av1_set_sad_per_bit(cpi, mv_costs, qindex);
}
void av1_frame_init_quantizer(AV1_COMP *cpi) {
MACROBLOCK *const x = &cpi->td.mb;
MACROBLOCKD *const xd = &x->e_mbd;
av1_init_plane_quantizers(cpi, x, xd->mi[0]->segment_id);
}
void set_frame_dc_delta_q(const AV1_COMMON *const cm, int *y_dc_delta_q,
int enable_chroma_deltaq, int *u_dc_delta_q,
int *v_dc_delta_q, int *u_ac_delta_q,
int *v_ac_delta_q) {
(void)cm;
(void)enable_chroma_deltaq;
*y_dc_delta_q = 0;
*u_dc_delta_q = 0;
*v_dc_delta_q = 0;
*u_ac_delta_q = 0;
*v_ac_delta_q = 0;
#if !CONFIG_ADJ_Q_OFFSET
if (frame_is_intra_only(cm) && cm->seq_params.uv_dc_delta_q_enabled) {
*u_dc_delta_q = *v_dc_delta_q = -4;
}
#endif // !CONFIG_ADJ_Q_OFFSET
}
// A version of set_qm_params() used when the
// AV1E_SET_FRAME_MULTI_QMATRIX_UNIT_TEST codec control is set to a nonzero
// value. Only used in quantization matrix unit test.
static void set_qm_test_params(AV1_COMMON *const cm,
CommonQuantParams *const quant_params,
int min_qmlevel, int max_qmlevel,
uint8_t pic_qm_num) {
// Test qm_y/u/v
const int qm_range = max_qmlevel + 1 - min_qmlevel;
// Set pic_qm_num, as provided by the caller
assert(pic_qm_num > 0);
quant_params->pic_qm_num = pic_qm_num;
quant_params->qm_index_bits = aom_ceil_log2(quant_params->pic_qm_num);
const int num_planes = av1_num_planes(cm);
for (uint8_t i = 0; i < quant_params->pic_qm_num; i++) {
quant_params->qm_y[i] = min_qmlevel + rand() % qm_range;
if (num_planes > 1) {
const int qm_uv_same_as_y = rand() % 1;
if (qm_uv_same_as_y) {
quant_params->qm_u[i] = quant_params->qm_y[i];
quant_params->qm_v[i] = quant_params->qm_y[i];
} else {
quant_params->qm_u[i] = min_qmlevel + rand() % qm_range;
quant_params->qm_v[i] = cm->seq_params.separate_uv_delta_q
? min_qmlevel + rand() % qm_range
: quant_params->qm_u[i];
}
}
}
#if CONFIG_QM_DEBUG
printf("[DEBUG] pic_qm_num=%d\n", quant_params->pic_qm_num);
for (int i = 0; i < quant_params->pic_qm_num; i++) {
if (num_planes > 1) {
printf("[DEBUG] qm_y/u/v[%d]=(%d,%d,%d)\n", i, quant_params->qm_y[i],
quant_params->qm_u[i], quant_params->qm_v[i]);
} else {
printf("[DEBUG] qm_y[%d]=(%d)\n", i, quant_params->qm_y[i]);
}
}
#endif
/* Test qm_index */
const int max_segments = cm->seg.enabled ? MAX_SEGMENTS : 1;
if (max_segments == 1) {
quant_params->qm_index[0] = 0;
} else {
for (int i = 0; i < max_segments; i++) {
quant_params->qm_index[i] = rand() % quant_params->pic_qm_num;
}
#if CONFIG_QM_DEBUG
printf("[DEBUG] max_segments=%d\n", max_segments);
for (int i = 0; i < max_segments; i++) {
printf("[DEBUG] qm_index[%d]=%d\n", i, quant_params->qm_index[i]);
}
#endif
}
}
// Sets qm_y[i], qm_u[i], and qm_v[i] in quant_params.
// Note: This function is not fully implemented if quant_params->pic_qm_num > 1.
// In that case, this function simply sets qm_y[i] to the same value for all i.
// Similarly for qm_u[i], and qm_v[i].
// TODO(wtc): No need to set qm_u[i], and qm_v[i] if monochrome.
static void set_qm_params(AV1_COMMON *const cm,
CommonQuantParams *const quant_params,
int min_qmlevel, int max_qmlevel) {
int qm_y = aom_get_qmlevel(quant_params->base_qindex, min_qmlevel,
max_qmlevel, cm->seq_params.bit_depth);
int qm_u =
aom_get_qmlevel(quant_params->base_qindex + quant_params->u_ac_delta_q,
min_qmlevel, max_qmlevel, cm->seq_params.bit_depth);
int qm_v = qm_u;
if (cm->seq_params.separate_uv_delta_q) {
qm_v =
aom_get_qmlevel(quant_params->base_qindex + quant_params->v_ac_delta_q,
min_qmlevel, max_qmlevel, cm->seq_params.bit_depth);
}
quant_params->pic_qm_num = 1;
quant_params->qm_index_bits = 0;
for (int i = 0; i < quant_params->pic_qm_num; i++) {
quant_params->qm_y[i] = qm_y;
quant_params->qm_u[i] = qm_u;
quant_params->qm_v[i] = qm_v;
}
}
void av1_set_quantizer(AV1_COMP *const cpi, int min_qmlevel, int max_qmlevel,
int q, int enable_chroma_deltaq) {
AV1_COMMON *const cm = &cpi->common;
// quantizer has to be reinitialized with av1_init_quantizer() if any
// delta_q changes.
CommonQuantParams *quant_params = &cm->quant_params;
quant_params->base_qindex = AOMMAX(cm->delta_q_info.delta_q_present_flag, q);
cm->cur_frame->base_qindex = quant_params->base_qindex;
set_frame_dc_delta_q(cm, &quant_params->y_dc_delta_q, enable_chroma_deltaq,
&quant_params->u_dc_delta_q, &quant_params->v_dc_delta_q,
&quant_params->u_ac_delta_q,
&quant_params->v_ac_delta_q);
cm->cur_frame->u_ac_delta_q = quant_params->u_ac_delta_q;
cm->cur_frame->v_ac_delta_q = quant_params->v_ac_delta_q;
if (cpi->oxcf.unit_test_cfg.frame_multi_qmatrix_unit_test == 0) {
set_qm_params(cm, quant_params, min_qmlevel, max_qmlevel);
} else {
set_qm_test_params(cm, quant_params, min_qmlevel, max_qmlevel,
cpi->oxcf.unit_test_cfg.frame_multi_qmatrix_unit_test);
}
}
// Table that converts 0-63 Q-range values passed in outside to the Qindex
// range used internally.
// clang-format off
static const int quantizer_to_qindex[] = {
0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48,
52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100,
104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152,
156, 160, 164, 168, 172, 176, 180, 184, 188, 192, 196, 200, 204,
208, 212, 216, 220, 224, 228, 232, 236, 240, 244, 249, 255,
};
// clang-format on
int av1_quantizer_to_qindex(int quantizer, aom_bit_depth_t bit_depth) {
assert(quantizer <= 63);
switch (bit_depth) {
case AOM_BITS_8: return quantizer_to_qindex[quantizer];
case AOM_BITS_10:
return (quantizer_to_qindex[quantizer] +
qindex_10b_offset[quantizer != 0]);
case AOM_BITS_12:
return (quantizer_to_qindex[quantizer] +
qindex_12b_offset[quantizer != 0]);
default:
assert(0 && "bit_depth should be AOM_BITS_8, AOM_BITS_10 or AOM_BITS_12");
return -1;
}
}
int av1_qindex_to_quantizer(int qindex, aom_bit_depth_t bit_depth) {
int quantizer;
for (quantizer = 0; quantizer < 64; ++quantizer)
if (av1_quantizer_to_qindex(quantizer, bit_depth) >= qindex)
return quantizer;
return 63;
}