1 /****************************************************************************** 2 * * 3 * Copyright (C) 2023 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ***************************************************************************** 18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 */ 20 21 #pragma once 22 #define IXHEAACE_ESBR_PVC_MOD_NUM_TAB (2) 23 #define IXHEAACE_ESBR_PVC_NUM_TAB_IDX_1 (3) 24 #define IXHEAACE_ESBR_PVC_NUM_TAB_IDX_2 (128) 25 #define IXHEAACE_ESBR_PVC_NUM_PVCID (128) 26 #define IXHEAACE_ESBR_PVC_NUM_TS (16) 27 #define IXHEAACE_ESBR_PVC_NUM_QMF_BANDS (64) 28 #define IXHEAACE_ESBR_PVC_NUM_QMF_BANDS_CORE (64) 29 #define IXHEAACE_ESBR_PVC_NUM_BANDS_CORE (3) 30 #define IXHEAACE_ESBR_PVC_NUM_BANDS_SBR_MODE1 (8) 31 #define IXHEAACE_ESBR_PVC_NUM_BANDS_SBR_MODE2 (6) 32 33 #define IXHEAACE_ESBR_PVC_POW_THRS (0.1f) 34 #define IXHEAACE_ESBR_PVC_NS_MODE_PRD_THRS (2) 35 36 #define IXHEAACE_ESBR_PVC_RESIDUAL_VAL (1000000.0f) 37 #define IXHEAACE_ESBR_PVC_NTS_GRP_ID (8) 38 39 #define IXHEAACE_ESBR_PVC_DIV_MODE_BITS (3) 40 #define IXHEAACE_ESBR_PVC_NS_MODE_BITS (1) 41 #define IXHEAACE_ESBR_PVC_ID_BITS (7) 42 #define IXHEAACE_ESBR_PVC_GRID_INFO_BITS (1) 43 #define IXHEAACE_ESBR_PVC_REUSE_BITS (1) 44 45 #define IXHEAACE_ESBR_PVC_FLAG_PREV_DFLT (0) 46 #define IXHEAACE_ESBR_PVC_ID_PREV_DFLT (0xFF) 47 #define IXHEAACE_ESBR_PVC_RATE_PREV_DFLT (0xFF) 48 #define IXHEAACE_ESBR_PVC_STRT_BAND_PREV_DFLT (0xFF) 49 50 #define IXHEAACE_ESBR_PVC_MODE_1 (1) 51 #define IXHEAACE_ESBR_PVC_MODE_2 (2) 52 53 typedef struct { 54 const FLOAT32 pvc_smth_win_ns_16[16]; 55 const FLOAT32 pvc_smth_win_ns_12[12]; 56 const FLOAT32 pvc_smth_win_ns_4[4]; 57 const FLOAT32 pvc_smth_win_ns_3[3]; 58 const UWORD8 pvc_idx_mode_1[IXHEAACE_ESBR_PVC_MOD_NUM_TAB]; 59 const UWORD8 pvc_prd_coef_kb_3_mode_1[IXHEAACE_ESBR_PVC_NUM_TAB_IDX_2] 60 [IXHEAACE_ESBR_PVC_NUM_BANDS_SBR_MODE1]; 61 const UWORD8 pvc_prd_coef_kb_012_mode_1[IXHEAACE_ESBR_PVC_NUM_TAB_IDX_1] 62 [IXHEAACE_ESBR_PVC_NUM_BANDS_CORE] 63 [IXHEAACE_ESBR_PVC_NUM_BANDS_SBR_MODE1]; 64 const FLOAT32 pvc_scaling_coef_mode_1[IXHEAACE_ESBR_PVC_NUM_BANDS_CORE + 1]; 65 const UWORD8 pvc_idx_mode_2[IXHEAACE_ESBR_PVC_MOD_NUM_TAB]; 66 const UWORD8 pvc_prd_coef_kb_3_mode_2[IXHEAACE_ESBR_PVC_NUM_TAB_IDX_2] 67 [IXHEAACE_ESBR_PVC_NUM_BANDS_SBR_MODE2]; 68 const UWORD8 pvc_prd_coef_kb_012_mode_2[IXHEAACE_ESBR_PVC_NUM_TAB_IDX_1] 69 [IXHEAACE_ESBR_PVC_NUM_BANDS_CORE] 70 [IXHEAACE_ESBR_PVC_NUM_BANDS_SBR_MODE2]; 71 const FLOAT32 pvc_scaling_coef_mode_2[IXHEAACE_ESBR_PVC_NUM_BANDS_CORE + 1]; 72 } ixheaace_pvc_tabs_struct; 73 74 extern const ixheaace_pvc_tabs_struct ixheaace_pvc_tabs; 75 76 typedef struct { 77 UWORD8 pvc_mode; 78 UWORD8 div_mode; 79 UWORD8 ns_mode; 80 UWORD16 pvc_id[IXHEAACE_ESBR_PVC_NUM_TS]; 81 UWORD8 time_smth_ts; 82 UWORD8 num_grp_core; 83 UWORD8 num_grp_sbr; 84 UWORD8 hbw; 85 UWORD8 num_pvc_id; 86 UWORD8 pvc_rate; 87 WORD32 usac_indep_flag; 88 } ixheaace_pvc_params; 89 90 typedef struct { 91 UWORD16 pvc_id; 92 UWORD8 start_band; 93 UWORD8 pvc_flag; 94 UWORD8 pvc_mode; 95 UWORD8 pvc_rate; 96 } ixheaace_pvc_prv_frm_params; 97 98 typedef struct { 99 const FLOAT32 *smoothing_coef; 100 const FLOAT32 *scaling_coef; 101 const UWORD8 *pvc_pred_coef_kb_3; 102 const UWORD8 *pvc_pred_coef_kb_012; 103 const UWORD8 *pvc_idx_tab; 104 } ixheaace_pvc_coef_tabs; 105 106 typedef struct { 107 UWORD8 div_mode; 108 UWORD8 grid_info[IXHEAACE_ESBR_PVC_NUM_TS]; 109 UWORD8 ns_mode; 110 WORD32 num_grid_info; 111 UWORD16 pvc_id_bs[IXHEAACE_ESBR_PVC_NUM_TS]; 112 } ixheaace_pvc_bs_info; 113 114 typedef struct { 115 ixheaace_pvc_bs_info pvc_bs_info; 116 ixheaace_pvc_params pvc_param; 117 ixheaace_pvc_prv_frm_params pvc_prv_param; 118 ixheaace_pvc_coef_tabs pvc_tabs; 119 FLOAT32 sb_grp_energy[IXHEAACE_ESBR_PVC_NUM_TS + 16 - 1][3]; 120 } ixheaace_pvc_enc; 121 122 typedef struct { 123 FLOAT32 pvc_qmf_low[IXHEAACE_ESBR_PVC_NUM_TS * IXHEAACE_ESBR_PVC_NUM_QMF_BANDS_CORE]; 124 FLOAT32 pvc_qmf_high[IXHEAACE_ESBR_PVC_NUM_TS * IXHEAACE_ESBR_PVC_NUM_QMF_BANDS]; 125 } ixheaace_pvc_scratch; 126 127 IA_ERRORCODE ixheaace_pvc_enc_init(ixheaace_pvc_enc *pstr_pvc_enc, WORD32 sbr_pvc_rate); 128 129 IA_ERRORCODE ixheaace_pvc_encode_frame(ixheaace_pvc_enc *pstr_pvc_enc, UWORD8 pvc_mode, 130 FLOAT32 *ptr_qmf_low, FLOAT32 *ptr_qmf_high, 131 UWORD8 start_band, UWORD8 stop_band); 132