| /* |
| * 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/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 { |
| switch (qparam->log_scale) { |
| case 0: |
| 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); |
| break; |
| case 1: |
| aom_highbd_quantize_b_32x32( |
| 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( |
| 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); |
| } |
| } |
| } |
| } |
| |
| 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) { |
| const int quant = av1_dc_quant_QTX(q, 0, base_y_dc_delta_q, bit_depth); |
| 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, QUANTS *const quants, |
| Dequants *const deq) { |
| 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; |
| const int qzbin_factor = get_qzbin_factor(q, base_y_dc_delta_q, bit_depth); |
| for (i = 0; i < 2; ++i) { |
| int qrounding_factor_fp = 64; |
| // y quantizer with TX scale |
| 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, bit_depth); |
| invert_quant(&quants->y_quant[q][i], &quants->y_quant_shift[q][i], |
| quant_QTX); |
| 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 |
| 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, bit_depth); |
| 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 |
| 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, bit_depth); |
| 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 CommonQuantParams *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, quants, dequants); |
| } |
| |
| 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 |
| const int qmlevel_y = |
| use_qmatrix ? quant_params->qmatrix_level_y : NUM_QM_LEVELS - 1; |
| 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]; |
| 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 |
| const int qmlevel_u = |
| use_qmatrix ? quant_params->qmatrix_level_u : NUM_QM_LEVELS - 1; |
| 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]; |
| 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 |
| const int qmlevel_v = |
| use_qmatrix ? quant_params->qmatrix_level_v : NUM_QM_LEVELS - 1; |
| 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]; |
| 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 (frame_is_intra_only(cm)) { |
| *y_dc_delta_q = 0; |
| *u_dc_delta_q = *v_dc_delta_q = -4; |
| } |
| } |
| |
| void av1_set_quantizer(AV1_COMMON *const cm, int min_qmlevel, int max_qmlevel, |
| int q, int enable_chroma_deltaq) { |
| // 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); |
| |
| quant_params->qmatrix_level_y = |
| aom_get_qmlevel(quant_params->base_qindex, min_qmlevel, max_qmlevel, |
| cm->seq_params.bit_depth); |
| quant_params->qmatrix_level_u = |
| aom_get_qmlevel(quant_params->base_qindex + quant_params->u_ac_delta_q, |
| min_qmlevel, max_qmlevel, cm->seq_params.bit_depth); |
| |
| if (!cm->seq_params.separate_uv_delta_q) |
| quant_params->qmatrix_level_v = quant_params->qmatrix_level_u; |
| else |
| quant_params->qmatrix_level_v = |
| aom_get_qmlevel(quant_params->base_qindex + quant_params->v_ac_delta_q, |
| min_qmlevel, max_qmlevel, cm->seq_params.bit_depth); |
| } |
| |
| // 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; |
| } |
