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 23 typedef struct { 24 WORD32 window_size_samples[MAX_TIME_CHANNELS]; 25 WORD32 usac_independency_flag_interval; 26 WORD32 usac_independency_flag_count; 27 WORD32 usac_independency_flag; 28 WORD32 frame_count; 29 WORD32 core_mode[MAX_TIME_CHANNELS]; 30 WORD32 core_mode_prev[MAX_TIME_CHANNELS]; 31 WORD32 core_mode_prev_copy[MAX_TIME_CHANNELS]; 32 WORD32 core_mode_next[MAX_TIME_CHANNELS]; 33 WORD32 core_mode_copy[MAX_TIME_CHANNELS]; 34 ia_block_switch_ctrl block_switch_ctrl[MAX_TIME_CHANNELS]; 35 ia_classification_struct str_sig_class_data; 36 FLOAT32 td_in_buf[MAX_TIME_CHANNELS][LEN_SUPERFRAME + LEN_NEXT_HIGH_RATE]; 37 FLOAT32 td_in_prev_buf[MAX_TIME_CHANNELS][LEN_SUPERFRAME + LEN_NEXT_HIGH_RATE + LEN_LPC0]; 38 FLOAT32 speech_buf[LEN_TOTAL_HIGH_RATE + LEN_LPC0]; 39 FLOAT32 synth_buf[ORDER + LEN_SUPERFRAME]; 40 WORD32 param_buf[(NUM_FRAMES * MAX_NUM_TCX_PRM_PER_DIV) + NUM_LPC_PRM]; 41 ia_usac_td_encoder_struct *td_encoder[MAX_TIME_CHANNELS]; 42 WORD32 total_nbbits[MAX_TIME_CHANNELS]; 43 WORD32 FD_nbbits_fac[MAX_TIME_CHANNELS]; 44 WORD32 num_td_fac_bits[MAX_TIME_CHANNELS]; 45 WORD32 td_bitrate[MAX_TIME_CHANNELS]; 46 WORD32 acelp_core_mode[MAX_TIME_CHANNELS]; 47 WORD32 max_bitreservoir_bits; 48 WORD32 available_bitreservoir_bits; 49 ia_drc_enc_state str_drc_state; 50 WORD32 num_sbr_bits; 51 ia_ms_info_struct str_ms_info[MAX_TIME_CHANNELS]; 52 WORD32 pred_coef_re[MAX_TIME_CHANNELS][MAX_SHORT_WINDOWS][MAX_SFB_LONG], 53 pred_coef_im[MAX_TIME_CHANNELS][MAX_SHORT_WINDOWS][MAX_SFB_LONG]; 54 WORD32 pred_coef_re_prev[MAX_TIME_CHANNELS][MAX_SFB_LONG], 55 pred_coef_im_prev[MAX_TIME_CHANNELS][MAX_SFB_LONG]; 56 /* Temporary buffers for bitstream writing function when computing static bits */ 57 WORD32 temp_pred_coef_re_prev[MAX_TIME_CHANNELS][MAX_SFB_LONG], 58 temp_pred_coef_im_prev[MAX_TIME_CHANNELS][MAX_SFB_LONG]; 59 WORD32 pred_dir_idx[MAX_TIME_CHANNELS]; 60 WORD32 cplx_pred_all[MAX_TIME_CHANNELS]; 61 WORD32 cplx_pred_used[MAX_TIME_CHANNELS][MAX_SHORT_WINDOWS][MAX_SFB_LONG]; 62 WORD32 delta_code_time[MAX_TIME_CHANNELS]; 63 WORD32 complex_coef[MAX_TIME_CHANNELS]; 64 FLOAT64 *ptr_dmx_re_save[MAX_TIME_CHANNELS]; /*For saving previous frame MDCT down-mix */ 65 FLOAT64 *ptr_dmx_im[MAX_TIME_CHANNELS]; 66 FLOAT64 arr_dmx_im[MAX_TIME_CHANNELS][(FRAME_LEN_LONG + FRAME_LEN_LONG / 8)]; 67 FLOAT64 arr_dmx_save_float[MAX_TIME_CHANNELS][(FRAME_LEN_LONG + FRAME_LEN_LONG / 8)]; 68 FLOAT64 left_chan_save[MAX_TIME_CHANNELS][(FRAME_LEN_LONG + FRAME_LEN_LONG / 8)]; 69 FLOAT64 right_chan_save[MAX_TIME_CHANNELS][(FRAME_LEN_LONG + FRAME_LEN_LONG / 8)]; 70 71 ia_tns_info *pstr_tns_info[MAX_TIME_CHANNELS]; 72 WORD32 common_window[MAX_TIME_CHANNELS]; 73 WORD32 noise_offset[MAX_TIME_CHANNELS]; 74 WORD32 noise_level[MAX_TIME_CHANNELS]; 75 76 ia_usac_quant_info_struct str_quant_info[MAX_TIME_CHANNELS]; 77 WORD32 noise_filling[MAX_TIME_CHANNELS]; 78 ia_psy_mod_struct str_psy_mod; 79 ia_qc_main_struct str_qc_main; 80 FLOAT64 *ptr_time_data[MAX_TIME_CHANNELS]; 81 FLOAT64 *ptr_look_ahead_time_data[MAX_TIME_CHANNELS]; 82 FLOAT64 *spectral_line_vector[MAX_TIME_CHANNELS]; 83 // Pre-/post- twiddle portions of MDCT use two times ccfl of this buffer, hence size of second 84 // argument is 2 * pstr_config->ccfl 85 FLOAT64 mdst_spectrum[MAX_TIME_CHANNELS][2 * FRAME_LEN_LONG]; 86 FLOAT64 *ptr_2frame_time_data[MAX_TIME_CHANNELS]; 87 WORD16 td_serial_out[MAX_TIME_CHANNELS][NBITS_MAX]; 88 WORD16 fac_out_stream[MAX_TIME_CHANNELS][NBITS_MAX]; 89 FLOAT64 overlap_buf[MAX_TIME_CHANNELS][2 * FRAME_LEN_LONG]; 90 WORD32 channel_elem_type[MAX_TIME_CHANNELS]; 91 WORD32 channel_elem_idx[MAX_TIME_CHANNELS]; 92 WORD32 num_ext_elements; 93 WORD32 ext_type[MAX_EXTENSION_PAYLOADS]; 94 UWORD8 ext_elem_config_payload[MAX_EXTENSION_PAYLOADS][MAX_EXTENSION_PAYLOAD_LEN]; 95 UWORD32 ext_elem_config_len[MAX_EXTENSION_PAYLOADS]; 96 iusace_scratch_mem str_scratch; 97 WORD32 min_bits_needed; 98 WORD32 num_drc_bits; 99 WORD32 use_acelp_only; 100 WORD32 prev_out_bytes[MAX_PREROLL_FRAMES]; 101 UWORD8 prev_out_data[MAX_PREROLL_FRAMES][MAX_OUTPUT_BYTES_PER_CH * IXHEAACE_MAX_CH_IN_BS_ELE]; 102 UWORD32 stereo_config_index; 103 } ia_usac_data_struct; 104 105 typedef struct { 106 ia_usac_lpd_state_struct lpd_state[6]; 107 ia_usac_lpd_state_struct flpd_state[6]; 108 109 } ia_usac_lpd_scratch; 110 111 IA_ERRORCODE iusace_enc_init(ia_usac_encoder_config_struct *ptr_usac_config, 112 ixheaace_audio_specific_config_struct *pstr_asc, 113 ia_usac_data_struct *pstr_state); 114 115 IA_ERRORCODE iusace_quantize_spec(ia_sfb_params_struct *pstr_sfb_prms, 116 WORD32 usac_independancy_flag, WORD32 num_chans, 117 ia_usac_data_struct *ptr_usac_data, 118 ia_usac_encoder_config_struct *ptr_usac_config, WORD32 chn, 119 WORD32 ele_id, WORD32 *is_quant_spec_zero, 120 WORD32 *is_gain_limited); 121 122 IA_ERRORCODE iusace_grouping(ia_sfb_params_struct *pstr_sfb_prms, WORD32 num_chans, 123 ia_usac_data_struct *ptr_usac_data, 124 ia_usac_encoder_config_struct *ptr_usac_config, WORD32 chn, 125 WORD32 ele_id); 126 127 IA_ERRORCODE iusace_stereo_proc(ia_sfb_params_struct *pstr_sfb_prms, 128 WORD32 usac_independancy_flag, ia_usac_data_struct *ptr_usac_data, 129 ia_usac_encoder_config_struct *ptr_usac_config, WORD32 chn); 130 131 VOID iusace_classification(ia_classification_struct *pstr_sig_class, 132 iusace_scratch_mem *pstr_scratch, WORD32 ccfl); 133