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/*
* 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/.
*/
#ifndef AOM_AV1_ENCODER_AV1_QUANTIZE_H_
#define AOM_AV1_ENCODER_AV1_QUANTIZE_H_
#include "config/aom_config.h"
#include "av1/common/quant_common.h"
#include "av1/common/scan.h"
#include "av1/encoder/block.h"
#ifdef __cplusplus
extern "C" {
#endif
#define EOB_FACTOR 325
#define SKIP_EOB_FACTOR_ADJUST 200
typedef struct QUANT_PARAM {
int log_scale;
TX_SIZE tx_size;
const qm_val_t *qmatrix;
const qm_val_t *iqmatrix;
int use_quant_b_adapt;
int use_optimize_b;
int xform_quant_idx;
} QUANT_PARAM;
typedef void (*AV1_QUANT_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);
static const int qindex_10b_offset[] = {
0,
48,
};
static const int qindex_12b_offset[] = {
0,
96,
};
// The QUANTS structure is used only for internal quantizer setup in
// av1_quantize.c.
// All of its fields use the same coefficient shift/scaling at TX.
typedef struct {
// 0: dc 1: ac 2-8: ac repeated to SIMD width
DECLARE_ALIGNED(32, int32_t, y_quant[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, y_quant_shift[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, y_zbin[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, y_round[QINDEX_RANGE][8]);
// TODO(jingning): in progress of re-working the quantization. will decide
// if we want to deprecate the current use of y_quant.
DECLARE_ALIGNED(32, int32_t, y_quant_fp[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, u_quant_fp[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, v_quant_fp[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, y_round_fp[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, u_round_fp[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, v_round_fp[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, u_quant[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, v_quant[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, u_quant_shift[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, v_quant_shift[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, u_zbin[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, v_zbin[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, u_round[QINDEX_RANGE][8]);
DECLARE_ALIGNED(32, int32_t, v_round[QINDEX_RANGE][8]);
} QUANTS;
// The Dequants structure is used only for internal quantizer setup in
// av1_quantize.c.
// Fields are suffixed according to whether or not they're expressed in
// the same coefficient shift/precision as TX or a fixed Q3 format.
typedef struct {
DECLARE_ALIGNED(32, int32_t,
y_dequant_QTX[QINDEX_RANGE][8]); // 8: SIMD width
DECLARE_ALIGNED(32, int32_t,
u_dequant_QTX[QINDEX_RANGE][8]); // 8: SIMD width
DECLARE_ALIGNED(32, int32_t,
v_dequant_QTX[QINDEX_RANGE][8]); // 8: SIMD width
} Dequants;
typedef struct {
// Quantization parameters for internal quantizer setup.
QUANTS quants;
// Dequantization parameters for internal quantizer setup.
Dequants dequants;
} EncQuantDequantParams;
struct AV1_COMP;
struct AV1Common;
void av1_frame_init_quantizer(struct AV1_COMP *cpi);
void av1_init_plane_quantizers(const struct AV1_COMP *cpi, MACROBLOCK *x,
int segment_id);
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);
void av1_init_quantizer(SequenceHeader *seq_params,
EncQuantDequantParams *const enc_quant_dequant_params,
const CommonQuantParams *quant_params);
void av1_set_quantizer(struct AV1Common *const cm, int min_qmlevel,
int max_qmlevel, int q, int enable_chroma_deltaq);
int av1_quantizer_to_qindex(int quantizer, aom_bit_depth_t bit_depth);
int av1_qindex_to_quantizer(int qindex, aom_bit_depth_t bit_depth);
void av1_quantize_skip(intptr_t n_coeffs, tran_low_t *qcoeff_ptr,
tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr);
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);
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);
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);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AOM_AV1_ENCODER_AV1_QUANTIZE_H_