1 /****************************************************************************** 2 * * 3 * Copyright (C) 2018 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 #ifndef IXHEAACD_SBR_DEC_H 21 #define IXHEAACD_SBR_DEC_H 22 23 typedef struct { 24 WORD32 x_over_qmf[MAX_NUM_PATCHES]; 25 WORD32 max_stretch; 26 WORD32 core_frame_length; 27 WORD32 hbe_qmf_in_len; 28 WORD32 hbe_qmf_out_len; 29 WORD32 no_bins; 30 WORD32 start_band; 31 WORD32 end_band; 32 WORD32 upsamp_4_flag; 33 WORD32 synth_buf_offset; 34 35 FLOAT32 *ptr_input_buf; 36 37 FLOAT32 **qmf_in_buf; 38 FLOAT32 **qmf_out_buf; 39 40 WORD32 k_start; 41 WORD32 synth_size; 42 FLOAT32 synth_buf[1280]; 43 FLOAT32 analy_buf[640]; 44 FLOAT32 *synth_wind_coeff; 45 FLOAT32 *analy_wind_coeff; 46 47 FLOAT32 *synth_cos_tab; 48 FLOAT32 *analy_cos_sin_tab; 49 50 FLOAT32 norm_qmf_in_buf[46][128]; 51 52 } ia_esbr_hbe_txposer_struct; 53 54 typedef struct { 55 WORD32 *ptr_sbr_overlap_buf; 56 WORD32 **drc_factors_sbr; 57 ia_sbr_qmf_filter_bank_struct str_codec_qmf_bank; 58 ia_sbr_qmf_filter_bank_struct str_synthesis_qmf_bank; 59 ia_sbr_calc_env_struct str_sbr_calc_env; 60 ia_sbr_hf_generator_struct str_hf_generator; 61 62 ia_sbr_scale_fact_struct str_sbr_scale_fact; 63 64 WORD32 max_samp_val; 65 ia_esbr_hbe_txposer_struct *p_hbe_txposer; 66 67 FLOAT32 core_sample_buf[2624]; 68 FLOAT32 ph_vocod_qmf_real[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 69 FLOAT32 ph_vocod_qmf_imag[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 70 FLOAT32 sbr_qmf_out_real[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 71 FLOAT32 sbr_qmf_out_imag[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 72 FLOAT32 qmf_buf_real[TIMESLOT_BUFFER_SIZE + 2 * 32][NO_QMF_SYNTH_CHANNELS]; 73 FLOAT32 qmf_buf_imag[TIMESLOT_BUFFER_SIZE + 2 * 32][NO_QMF_SYNTH_CHANNELS]; 74 75 FLOAT32 mps_qmf_buf_real[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 76 FLOAT32 mps_qmf_buf_imag[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 77 FLOAT32 mps_sbr_qmf_buf_real[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 78 FLOAT32 mps_sbr_qmf_buf_imag[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 79 80 WORD32 sbr_scratch_local[256]; 81 FLOAT32 scratch_buff[320]; 82 83 FLOAT32 qmf_energy_buf[64][32]; 84 FLOAT32 pvc_qmf_enrg_arr[16 * 32]; 85 86 FLOAT32 **pp_qmf_buf_real; 87 FLOAT32 **pp_qmf_buf_imag; 88 89 FLOAT32 *time_sample_buf; 90 } ia_sbr_dec_struct; 91 92 typedef struct { 93 ia_sbr_prev_frame_data_struct *pstr_prev_frame_data; 94 ia_sbr_dec_struct str_sbr_dec; 95 WORD32 output_frame_size; 96 WORD32 sync_state; 97 } ia_sbr_channel_struct; 98 99 struct ia_sbr_dec_inst_struct { 100 ia_ps_dec_struct *pstr_ps_stereo_dec; 101 FLAG ps_present; 102 ia_sbr_channel_struct *pstr_sbr_channel[MAXNRSBRCHANNELS]; 103 ia_sbr_header_data_struct *pstr_sbr_header[MAXNRSBRCHANNELS]; 104 ia_freq_band_data_struct *pstr_freq_band_data[MAXNRSBRCHANNELS]; 105 ia_sbr_tables_struct *pstr_sbr_tables; 106 ixheaacd_misc_tables *pstr_common_tables; 107 ia_pvc_data_struct *ptr_pvc_data_str; 108 VOID *hbe_txposer_buffers; 109 FLOAT32 *time_sample_buf[MAXNRSBRCHANNELS]; 110 VOID *scratch_mem_v; 111 VOID *frame_buffer[2]; 112 ia_sbr_header_data_struct str_sbr_dflt_header; 113 FLAG stereo_config_idx; 114 FLAG usac_independency_flag; 115 FLAG pvc_flag; 116 FLAG hbe_flag; 117 FLAG sbr_mode; 118 FLAG prev_sbr_mode; 119 FLAG inter_tes_flag; 120 FLAG aot_usac_flag; 121 }; 122 123 typedef struct ia_sbr_pers_struct { 124 WORD16 *sbr_qmf_analy_states; 125 126 WORD32 *sbr_qmf_analy_states_32; 127 128 WORD16 *sbr_qmf_synth_states; 129 130 WORD32 *sbr_qmf_synth_states_32; 131 132 WORD32 **sbr_lpc_filter_states_real[MAXNRSBRCHANNELS]; 133 134 WORD32 **sbr_lpc_filter_states_imag[MAXNRSBRCHANNELS]; 135 136 WORD32 *ptr_sbr_overlap_buf[MAXNRSBRCHANNELS]; 137 138 struct ia_sbr_dec_inst_struct str_sbr_dec_inst; 139 140 ia_transposer_settings_struct str_sbr_tran_settings; 141 142 WORD16 *sbr_smooth_gain_buf[MAXNRSBRCHANNELS]; 143 144 WORD16 *sbr_smooth_noise_buf[MAXNRSBRCHANNELS]; 145 146 ia_sbr_prev_frame_data_struct *pstr_prev_frame_data[MAXNRSBRCHANNELS]; 147 148 } ia_sbr_pers_struct; 149 150 WORD32 ixheaacd_sbr_dec(ia_sbr_dec_struct *ptr_sbr_dec, WORD16 *ptr_time_data, 151 ia_sbr_header_data_struct *ptr_header_data, 152 ia_sbr_frame_info_data_struct *ptr_frame_data, 153 ia_sbr_prev_frame_data_struct *ptr_frame_data_prev, 154 ia_ps_dec_struct *ptr_ps_dec, 155 ia_sbr_qmf_filter_bank_struct *ptr_qmf_synth_bank_r, 156 ia_sbr_scale_fact_struct *ptr_sbr_sf_r, 157 FLAG apply_processing, FLAG low_pow_flag, 158 WORD32 *ptr_work_buf_core, 159 ia_sbr_tables_struct *sbr_tables_ptr, 160 ixheaacd_misc_tables *pstr_common_tables, WORD ch_fac, 161 ia_pvc_data_struct *ptr_pvc_data_str, FLAG drc_on, 162 WORD32 drc_sbr_factors[][64], WORD32 audio_object_type); 163 164 WORD16 ixheaacd_create_sbrdec(ixheaacd_misc_tables *pstr_common_table, 165 ia_sbr_channel_struct *ptr_sbr_channel, 166 ia_sbr_header_data_struct *ptr_header_data, 167 WORD16 chan, FLAG down_sample_flag, 168 VOID *sbr_persistent_mem_v, WORD ps_enable, 169 WORD audio_object_type); 170 171 #define MAX_NUM_QMF_BANDS_ESBR 128 172 173 WORD32 ixheaacd_sbr_dec_from_mps(FLOAT32 *p_mps_qmf_output, VOID *p_sbr_dec, 174 VOID *p_sbr_frame, VOID *p_sbr_header); 175 176 WORD32 ixheaacd_qmf_hbe_apply(ia_esbr_hbe_txposer_struct *h_hbe_txposer, 177 FLOAT32 qmf_buf_real[][64], 178 FLOAT32 qmf_buf_imag[][64], WORD32 num_columns, 179 FLOAT32 pv_qmf_buf_real[][64], 180 FLOAT32 pv_qmf_buf_imag[][64], 181 WORD32 pitch_in_bins); 182 183 VOID ixheaacd_sbr_env_calc(ia_sbr_frame_info_data_struct *frame_data, 184 FLOAT32 input_real[][64], FLOAT32 input_imag[][64], 185 FLOAT32 input_real1[][64], FLOAT32 input_imag1[][64], 186 WORD32 x_over_qmf[MAX_NUM_PATCHES], 187 FLOAT32 *scratch_buff, FLOAT32 *env_out); 188 189 WORD32 ixheaacd_generate_hf(FLOAT32 ptr_src_buf_real[][64], 190 FLOAT32 ptr_src_buf_imag[][64], 191 FLOAT32 ptr_ph_vocod_buf_real[][64], 192 FLOAT32 ptr_ph_vocod_buf_imag[][64], 193 FLOAT32 ptr_dst_buf_real[][64], 194 FLOAT32 ptr_dst_buf_imag[][64], 195 ia_sbr_frame_info_data_struct *ptr_frame_data, 196 ia_sbr_header_data_struct *ptr_header_data); 197 198 VOID ixheaacd_clr_subsamples(WORD32 *ptr_qmf_buf, WORD32 num, WORD32 size); 199 200 VOID ixheaacd_rescale_x_overlap( 201 ia_sbr_dec_struct *ptr_sbr_dec, ia_sbr_header_data_struct *ptr_header_data, 202 ia_sbr_frame_info_data_struct *ptr_frame_data, 203 ia_sbr_prev_frame_data_struct *ptr_frame_data_prev, 204 WORD32 **pp_overlap_buffer_real, FLAG low_pow_flag); 205 206 WORD32 ixheaacd_qmf_hbe_data_reinit( 207 ia_esbr_hbe_txposer_struct *ptr_hbe_transposer_str, 208 WORD16 *ptr_freq_band_tbl[MAX_FREQ_COEFFS + 1], WORD16 *ptr_num_sf_bands, 209 WORD32 upsamp_4_flag); 210 211 WORD32 ixheaacd_sbr_read_pvc_sce(ia_sbr_frame_info_data_struct *ptr_frame_data, 212 ia_bit_buf_struct *it_bit_buff, 213 WORD32 hbe_flag, 214 ia_pvc_data_struct *ptr_pvc_data, 215 ia_sbr_tables_struct *sbr_tables_ptr, 216 ia_sbr_header_data_struct *ptr_header_data); 217 218 WORD32 ixheaacd_qmf_hbe_apply(ia_esbr_hbe_txposer_struct *h_hbe_txposer, 219 FLOAT32 qmf_buf_real[][64], 220 FLOAT32 qmf_buf_imag[][64], WORD32 num_columns, 221 FLOAT32 pv_qmf_buf_real[][64], 222 FLOAT32 pv_qmf_buf_imag[][64], 223 WORD32 pitch_in_bins); 224 225 WORD32 ixheaacd_esbr_dec(ia_sbr_dec_struct *ptr_sbr_dec, 226 ia_sbr_header_data_struct *ptr_header_data, 227 ia_sbr_frame_info_data_struct *ptr_frame_data, 228 FLAG apply_processing, FLAG low_pow_flag, 229 ia_sbr_tables_struct *sbr_tables_ptr, WORD32 ch_fac); 230 231 VOID ixheaacd_hbe_repl_spec(WORD32 x_over_qmf[MAX_NUM_PATCHES], 232 FLOAT32 qmf_buf_real[][64], 233 FLOAT32 qmf_buf_imag[][64], WORD32 no_bins, 234 WORD32 max_stretch); 235 236 #endif 237
