1 /* 2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved 3 * 4 * This source code is subject to the terms of the BSD 2 Clause License and 5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6 * was not distributed with this source code in the LICENSE file, you can 7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8 * Media Patent License 1.0 was not distributed with this source code in the 9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10 */ 11 12 #ifndef AOM_AV1_ENCODER_AV1_QUANTIZE_H_ 13 #define AOM_AV1_ENCODER_AV1_QUANTIZE_H_ 14 15 #include "config/aom_config.h" 16 17 #include "av1/common/quant_common.h" 18 #include "av1/common/scan.h" 19 #include "av1/encoder/block.h" 20 21 #ifdef __cplusplus 22 extern "C" { 23 #endif 24 25 #define EOB_FACTOR 325 26 #define SKIP_EOB_FACTOR_ADJUST 200 27 28 typedef struct QUANT_PARAM { 29 int log_scale; 30 TX_SIZE tx_size; 31 const qm_val_t *qmatrix; 32 const qm_val_t *iqmatrix; 33 int use_quant_b_adapt; 34 int use_optimize_b; 35 int xform_quant_idx; 36 } QUANT_PARAM; 37 38 typedef void (*AV1_QUANT_FACADE)(const tran_low_t *coeff_ptr, intptr_t n_coeffs, 39 const MACROBLOCK_PLANE *p, 40 tran_low_t *qcoeff_ptr, 41 tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr, 42 const SCAN_ORDER *sc, 43 const QUANT_PARAM *qparam); 44 45 // The QUANTS structure is used only for internal quantizer setup in 46 // av1_quantize.c. 47 // All of its fields use the same coefficient shift/scaling at TX. 48 typedef struct { 49 // 0: dc 1: ac 2-8: ac repeated to SIMD width 50 DECLARE_ALIGNED(16, int16_t, y_quant[QINDEX_RANGE][8]); 51 DECLARE_ALIGNED(16, int16_t, y_quant_shift[QINDEX_RANGE][8]); 52 DECLARE_ALIGNED(16, int16_t, y_zbin[QINDEX_RANGE][8]); 53 DECLARE_ALIGNED(16, int16_t, y_round[QINDEX_RANGE][8]); 54 55 // TODO(jingning): in progress of re-working the quantization. will decide 56 // if we want to deprecate the current use of y_quant. 57 DECLARE_ALIGNED(16, int16_t, y_quant_fp[QINDEX_RANGE][8]); 58 DECLARE_ALIGNED(16, int16_t, u_quant_fp[QINDEX_RANGE][8]); 59 DECLARE_ALIGNED(16, int16_t, v_quant_fp[QINDEX_RANGE][8]); 60 DECLARE_ALIGNED(16, int16_t, y_round_fp[QINDEX_RANGE][8]); 61 DECLARE_ALIGNED(16, int16_t, u_round_fp[QINDEX_RANGE][8]); 62 DECLARE_ALIGNED(16, int16_t, v_round_fp[QINDEX_RANGE][8]); 63 64 DECLARE_ALIGNED(16, int16_t, u_quant[QINDEX_RANGE][8]); 65 DECLARE_ALIGNED(16, int16_t, v_quant[QINDEX_RANGE][8]); 66 DECLARE_ALIGNED(16, int16_t, u_quant_shift[QINDEX_RANGE][8]); 67 DECLARE_ALIGNED(16, int16_t, v_quant_shift[QINDEX_RANGE][8]); 68 DECLARE_ALIGNED(16, int16_t, u_zbin[QINDEX_RANGE][8]); 69 DECLARE_ALIGNED(16, int16_t, v_zbin[QINDEX_RANGE][8]); 70 DECLARE_ALIGNED(16, int16_t, u_round[QINDEX_RANGE][8]); 71 DECLARE_ALIGNED(16, int16_t, v_round[QINDEX_RANGE][8]); 72 } QUANTS; 73 74 // The Dequants structure is used only for internal quantizer setup in 75 // av1_quantize.c. 76 // Fields are suffixed according to whether or not they're expressed in 77 // the same coefficient shift/precision as TX or a fixed Q3 format. 78 typedef struct { 79 DECLARE_ALIGNED(16, int16_t, 80 y_dequant_QTX[QINDEX_RANGE][8]); // 8: SIMD width 81 DECLARE_ALIGNED(16, int16_t, 82 u_dequant_QTX[QINDEX_RANGE][8]); // 8: SIMD width 83 DECLARE_ALIGNED(16, int16_t, 84 v_dequant_QTX[QINDEX_RANGE][8]); // 8: SIMD width 85 } Dequants; 86 87 typedef struct { 88 // Quantization parameters for internal quantizer setup. 89 QUANTS quants; 90 // Dequantization parameters for internal quantizer setup. 91 Dequants dequants; 92 } EncQuantDequantParams; 93 94 struct AV1_COMP; 95 struct AV1Common; 96 97 void av1_frame_init_quantizer(struct AV1_COMP *cpi); 98 99 void av1_init_plane_quantizers(const struct AV1_COMP *cpi, MACROBLOCK *x, 100 int segment_id); 101 102 void av1_build_quantizer(aom_bit_depth_t bit_depth, int y_dc_delta_q, 103 int u_dc_delta_q, int u_ac_delta_q, int v_dc_delta_q, 104 int v_ac_delta_q, QUANTS *const quants, 105 Dequants *const deq); 106 107 void av1_init_quantizer(EncQuantDequantParams *const enc_quant_dequant_params, 108 const CommonQuantParams *quant_params, 109 aom_bit_depth_t bit_depth); 110 111 void av1_set_quantizer(struct AV1Common *const cm, int min_qmlevel, 112 int max_qmlevel, int q); 113 114 int av1_quantizer_to_qindex(int quantizer); 115 116 int av1_qindex_to_quantizer(int qindex); 117 118 void av1_quantize_skip(intptr_t n_coeffs, tran_low_t *qcoeff_ptr, 119 tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr); 120 121 void av1_quantize_fp_facade(const tran_low_t *coeff_ptr, intptr_t n_coeffs, 122 const MACROBLOCK_PLANE *p, tran_low_t *qcoeff_ptr, 123 tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr, 124 const SCAN_ORDER *sc, const QUANT_PARAM *qparam); 125 126 void av1_quantize_b_facade(const tran_low_t *coeff_ptr, intptr_t n_coeffs, 127 const MACROBLOCK_PLANE *p, tran_low_t *qcoeff_ptr, 128 tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr, 129 const SCAN_ORDER *sc, const QUANT_PARAM *qparam); 130 131 void av1_quantize_dc_facade(const tran_low_t *coeff_ptr, intptr_t n_coeffs, 132 const MACROBLOCK_PLANE *p, tran_low_t *qcoeff_ptr, 133 tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr, 134 const SCAN_ORDER *sc, const QUANT_PARAM *qparam); 135 136 #if CONFIG_AV1_HIGHBITDEPTH 137 void av1_highbd_quantize_fp_facade(const tran_low_t *coeff_ptr, 138 intptr_t n_coeffs, const MACROBLOCK_PLANE *p, 139 tran_low_t *qcoeff_ptr, 140 tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr, 141 const SCAN_ORDER *sc, 142 const QUANT_PARAM *qparam); 143 144 void av1_highbd_quantize_b_facade(const tran_low_t *coeff_ptr, 145 intptr_t n_coeffs, const MACROBLOCK_PLANE *p, 146 tran_low_t *qcoeff_ptr, 147 tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr, 148 const SCAN_ORDER *sc, 149 const QUANT_PARAM *qparam); 150 151 void av1_highbd_quantize_dc_facade(const tran_low_t *coeff_ptr, 152 intptr_t n_coeffs, const MACROBLOCK_PLANE *p, 153 tran_low_t *qcoeff_ptr, 154 tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr, 155 const SCAN_ORDER *sc, 156 const QUANT_PARAM *qparam); 157 #endif 158 159 #ifdef __cplusplus 160 } // extern "C" 161 #endif 162 163 #endif // AOM_AV1_ENCODER_AV1_QUANTIZE_H_ 164