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 VOID (*ixheaacd_real_synth_fft)(FLOAT32 *inp, FLOAT32 *out, WORD32 n_points); 52 53 VOID (*ixheaacd_cmplx_anal_fft)(FLOAT32 *inp, FLOAT32 *out, WORD32 n_points); 54 55 } ia_esbr_hbe_txposer_struct; 56 57 typedef struct { 58 WORD32 *ptr_sbr_overlap_buf; 59 WORD32 **drc_factors_sbr; 60 ia_sbr_qmf_filter_bank_struct str_codec_qmf_bank; 61 ia_sbr_qmf_filter_bank_struct str_synthesis_qmf_bank; 62 ia_sbr_calc_env_struct str_sbr_calc_env; 63 ia_sbr_hf_generator_struct str_hf_generator; 64 65 ia_sbr_scale_fact_struct str_sbr_scale_fact; 66 67 WORD32 max_samp_val; 68 ia_esbr_hbe_txposer_struct *p_hbe_txposer; 69 70 FLOAT32 core_sample_buf[2624]; 71 FLOAT32 ph_vocod_qmf_real[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 72 FLOAT32 ph_vocod_qmf_imag[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 73 FLOAT32 sbr_qmf_out_real[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 74 FLOAT32 sbr_qmf_out_imag[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 75 FLOAT32 qmf_buf_real[TIMESLOT_BUFFER_SIZE + 2 * 32][NO_QMF_SYNTH_CHANNELS]; 76 FLOAT32 qmf_buf_imag[TIMESLOT_BUFFER_SIZE + 2 * 32][NO_QMF_SYNTH_CHANNELS]; 77 78 FLOAT32 mps_qmf_buf_real[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 79 FLOAT32 mps_qmf_buf_imag[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 80 FLOAT32 mps_sbr_qmf_buf_real[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 81 FLOAT32 mps_sbr_qmf_buf_imag[TIMESLOT_BUFFER_SIZE][NO_QMF_SYNTH_CHANNELS]; 82 83 WORD32 sbr_scratch_local[256]; 84 FLOAT32 scratch_buff[320]; 85 86 FLOAT32 qmf_energy_buf[64][32]; 87 FLOAT32 pvc_qmf_enrg_arr[16 * 32]; 88 89 FLOAT32 **pp_qmf_buf_real; 90 FLOAT32 **pp_qmf_buf_imag; 91 92 FLOAT32 *time_sample_buf; 93 } ia_sbr_dec_struct; 94 95 typedef struct { 96 ia_sbr_prev_frame_data_struct *pstr_prev_frame_data; 97 ia_sbr_dec_struct str_sbr_dec; 98 WORD32 output_frame_size; 99 WORD32 sync_state; 100 } ia_sbr_channel_struct; 101 102 struct ia_sbr_dec_inst_struct { 103 ia_ps_dec_struct *pstr_ps_stereo_dec; 104 FLAG ps_present; 105 ia_sbr_channel_struct *pstr_sbr_channel[MAXNRSBRCHANNELS]; 106 ia_sbr_header_data_struct *pstr_sbr_header[MAXNRSBRCHANNELS]; 107 ia_freq_band_data_struct *pstr_freq_band_data[MAXNRSBRCHANNELS]; 108 ia_sbr_tables_struct *pstr_sbr_tables; 109 ixheaacd_misc_tables *pstr_common_tables; 110 ia_pvc_data_struct *ptr_pvc_data_str; 111 VOID *hbe_txposer_buffers; 112 FLOAT32 *time_sample_buf[MAXNRSBRCHANNELS]; 113 VOID *scratch_mem_v; 114 VOID *frame_buffer[2]; 115 ia_sbr_header_data_struct str_sbr_dflt_header; 116 FLAG stereo_config_idx; 117 FLAG usac_independency_flag; 118 FLAG pvc_flag; 119 FLAG hbe_flag; 120 FLAG sbr_mode; 121 FLAG prev_sbr_mode; 122 FLAG inter_tes_flag; 123 FLAG aot_usac_flag; 124 }; 125 126 typedef struct ia_sbr_pers_struct { 127 WORD16 *sbr_qmf_analy_states; 128 129 WORD32 *sbr_qmf_analy_states_32; 130 131 WORD16 *sbr_qmf_synth_states; 132 133 WORD32 *sbr_qmf_synth_states_32; 134 135 WORD32 **sbr_lpc_filter_states_real[MAXNRSBRCHANNELS]; 136 137 WORD32 **sbr_lpc_filter_states_imag[MAXNRSBRCHANNELS]; 138 139 WORD32 *ptr_sbr_overlap_buf[MAXNRSBRCHANNELS]; 140 141 struct ia_sbr_dec_inst_struct str_sbr_dec_inst; 142 143 ia_transposer_settings_struct str_sbr_tran_settings; 144 145 WORD16 *sbr_smooth_gain_buf[MAXNRSBRCHANNELS]; 146 147 WORD16 *sbr_smooth_noise_buf[MAXNRSBRCHANNELS]; 148 149 ia_sbr_prev_frame_data_struct *pstr_prev_frame_data[MAXNRSBRCHANNELS]; 150 151 } ia_sbr_pers_struct; 152 153 WORD32 ixheaacd_sbr_dec(ia_sbr_dec_struct *ptr_sbr_dec, WORD16 *ptr_time_data, 154 ia_sbr_header_data_struct *ptr_header_data, 155 ia_sbr_frame_info_data_struct *ptr_frame_data, 156 ia_sbr_prev_frame_data_struct *ptr_frame_data_prev, 157 ia_ps_dec_struct *ptr_ps_dec, 158 ia_sbr_qmf_filter_bank_struct *ptr_qmf_synth_bank_r, 159 ia_sbr_scale_fact_struct *ptr_sbr_sf_r, 160 FLAG apply_processing, FLAG low_pow_flag, 161 WORD32 *ptr_work_buf_core, 162 ia_sbr_tables_struct *sbr_tables_ptr, 163 ixheaacd_misc_tables *pstr_common_tables, WORD ch_fac, 164 ia_pvc_data_struct *ptr_pvc_data_str, FLAG drc_on, 165 WORD32 drc_sbr_factors[][64], WORD32 audio_object_type); 166 167 WORD16 ixheaacd_create_sbrdec(ixheaacd_misc_tables *pstr_common_table, 168 ia_sbr_channel_struct *ptr_sbr_channel, 169 ia_sbr_header_data_struct *ptr_header_data, 170 WORD16 chan, FLAG down_sample_flag, 171 VOID *sbr_persistent_mem_v, WORD ps_enable, 172 WORD audio_object_type); 173 174 #define MAX_NUM_QMF_BANDS_ESBR 128 175 176 WORD32 ixheaacd_sbr_dec_from_mps(FLOAT32 *p_mps_qmf_output, VOID *p_sbr_dec, 177 VOID *p_sbr_frame, VOID *p_sbr_header); 178 179 WORD32 ixheaacd_qmf_hbe_apply(ia_esbr_hbe_txposer_struct *h_hbe_txposer, 180 FLOAT32 qmf_buf_real[][64], 181 FLOAT32 qmf_buf_imag[][64], WORD32 num_columns, 182 FLOAT32 pv_qmf_buf_real[][64], 183 FLOAT32 pv_qmf_buf_imag[][64], 184 WORD32 pitch_in_bins); 185 186 VOID ixheaacd_sbr_env_calc(ia_sbr_frame_info_data_struct *frame_data, 187 FLOAT32 input_real[][64], FLOAT32 input_imag[][64], 188 FLOAT32 input_real1[][64], FLOAT32 input_imag1[][64], 189 WORD32 x_over_qmf[MAX_NUM_PATCHES], 190 FLOAT32 *scratch_buff, FLOAT32 *env_out); 191 192 WORD32 ixheaacd_generate_hf(FLOAT32 ptr_src_buf_real[][64], 193 FLOAT32 ptr_src_buf_imag[][64], 194 FLOAT32 ptr_ph_vocod_buf_real[][64], 195 FLOAT32 ptr_ph_vocod_buf_imag[][64], 196 FLOAT32 ptr_dst_buf_real[][64], 197 FLOAT32 ptr_dst_buf_imag[][64], 198 ia_sbr_frame_info_data_struct *ptr_frame_data, 199 ia_sbr_header_data_struct *ptr_header_data); 200 201 VOID ixheaacd_clr_subsamples(WORD32 *ptr_qmf_buf, WORD32 num, WORD32 size); 202 203 VOID ixheaacd_rescale_x_overlap( 204 ia_sbr_dec_struct *ptr_sbr_dec, ia_sbr_header_data_struct *ptr_header_data, 205 ia_sbr_frame_info_data_struct *ptr_frame_data, 206 ia_sbr_prev_frame_data_struct *ptr_frame_data_prev, 207 WORD32 **pp_overlap_buffer_real, FLAG low_pow_flag); 208 209 WORD32 ixheaacd_qmf_hbe_data_reinit( 210 ia_esbr_hbe_txposer_struct *ptr_hbe_transposer_str, 211 WORD16 *ptr_freq_band_tbl[MAX_FREQ_COEFFS + 1], WORD16 *ptr_num_sf_bands, 212 WORD32 upsamp_4_flag); 213 214 WORD32 ixheaacd_sbr_read_pvc_sce(ia_sbr_frame_info_data_struct *ptr_frame_data, 215 ia_bit_buf_struct *it_bit_buff, 216 WORD32 hbe_flag, 217 ia_pvc_data_struct *ptr_pvc_data, 218 ia_sbr_tables_struct *sbr_tables_ptr, 219 ia_sbr_header_data_struct *ptr_header_data); 220 221 WORD32 ixheaacd_qmf_hbe_apply(ia_esbr_hbe_txposer_struct *h_hbe_txposer, 222 FLOAT32 qmf_buf_real[][64], 223 FLOAT32 qmf_buf_imag[][64], WORD32 num_columns, 224 FLOAT32 pv_qmf_buf_real[][64], 225 FLOAT32 pv_qmf_buf_imag[][64], 226 WORD32 pitch_in_bins); 227 228 WORD32 ixheaacd_esbr_dec(ia_sbr_dec_struct *ptr_sbr_dec, 229 ia_sbr_header_data_struct *ptr_header_data, 230 ia_sbr_frame_info_data_struct *ptr_frame_data, 231 FLAG apply_processing, FLAG low_pow_flag, 232 ia_sbr_tables_struct *sbr_tables_ptr, WORD32 ch_fac); 233 234 VOID ixheaacd_hbe_repl_spec(WORD32 x_over_qmf[MAX_NUM_PATCHES], 235 FLOAT32 qmf_buf_real[][64], 236 FLOAT32 qmf_buf_imag[][64], WORD32 no_bins, 237 WORD32 max_stretch); 238 239 #endif 240