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_MAIN_H 21 #define IXHEAACD_MAIN_H 22 23 VOID ixheaacd_imdct_flt(FLOAT32 in_data[], FLOAT32 out_data[], WORD32 len); 24 25 VOID usac_tw_imdct(FLOAT32 in_data[], FLOAT32 out_data[], WORD32 len); 26 27 WORD32 ixheaacd_window_calc(FLOAT32 window[], WORD32 len, WORD32 wfun_select); 28 29 VOID calc_window_ratio(FLOAT32 window[], WORD32 len, WORD32 prev_len, 30 WORD32 wfun_select, WORD32 prev_wfun_select); 31 32 WORD32 ixheaacd_tw_window_calc(FLOAT32 window[], WORD32 len, 33 WORD32 wfun_select); 34 35 typedef struct ia_usac_lpd_decoder { 36 WORD32 mode_prev; 37 float synth_prev[MAX_PITCH + SYNTH_DELAY_LMAX]; 38 float xcitation_prev[MAX_PITCH + INTER_LP_FIL_ORDER + 1]; 39 int pitch_prev[NUM_SUBFR_SUPERFRAME_BY2 - 1]; 40 float gain_prev[NUM_SUBFR_SUPERFRAME_BY2 - 1]; 41 42 float lp_flt_coeff_a_prev[2 * (ORDER + 1)]; 43 44 FLOAT32 exc_prev[1 + (2 * FAC_LENGTH)]; 45 46 FLOAT32 bpf_prev[FILTER_DELAY + LEN_SUBFR]; 47 48 WORD32 ilspold[ORDER]; 49 50 FLOAT32 fac_gain; 51 FLOAT32 fac_fd_data[FAC_LENGTH / 4]; 52 53 FLOAT32 lsf_prev[ORDER]; 54 FLOAT32 lspold[ORDER]; 55 WORD32 lsfold_first[ORDER]; 56 57 FLOAT32 gain_threshold; 58 59 WORD32 fscale; 60 61 FLOAT32 fd_synth_buf[3 * LEN_FRAME + 1 + ORDER]; 62 FLOAT32 *fd_synth; 63 WORD32 bpf_active_prev; 64 65 } ia_usac_lpd_decoder, *ia_usac_lpd_decoder_handle; 66 67 typedef struct ia_usac_data_main_struct { 68 FLOAT32 time_sample_vector[MAX_NUM_CHANNELS][4096]; 69 WORD32 input_data_ptr[MAX_NUM_CHANNELS][4096]; 70 WORD32 overlap_data_ptr[MAX_NUM_CHANNELS][4096]; 71 WORD32 output_data_ptr[MAX_NUM_CHANNELS][4096]; 72 73 WORD32 window_shape[MAX_NUM_CHANNELS]; 74 WORD32 window_shape_prev[MAX_NUM_CHANNELS]; 75 WORD32 window_sequence[MAX_NUM_CHANNELS]; 76 WORD32 window_sequence_last[MAX_NUM_CHANNELS]; 77 78 WORD32 output_samples; 79 WORD32 sbr_ratio_idx; 80 WORD32 usac_independency_flg; 81 82 WORD32 sampling_rate_idx; 83 WORD32 audio_object_type; 84 85 WORD32 down_samp_sbr; 86 WORD32 sbr_mode; 87 88 WORD32 tw_mdct[MAX_ELEMENTS]; 89 WORD32 mps_pseudo_lr[MAX_ELEMENTS]; 90 WORD32 td_frame_prev[MAX_NUM_CHANNELS]; 91 92 FLOAT32 warp_sum[MAX_NUM_CHANNELS][2]; 93 FLOAT32 warp_cont_mem[MAX_NUM_CHANNELS][3 * 1024]; 94 FLOAT32 prev_sample_pos[MAX_NUM_CHANNELS][3 * 1024]; 95 FLOAT32 prev_tw_trans_len[MAX_NUM_CHANNELS][2]; 96 WORD32 prev_tw_start_stop[MAX_NUM_CHANNELS][2]; 97 FLOAT32 prev_warped_time_sample_vector[MAX_NUM_CHANNELS][3 * 1024]; 98 99 FLOAT32 lpc_prev[MAX_NUM_CHANNELS][ORDER + 1]; 100 FLOAT32 acelp_in[MAX_NUM_CHANNELS][1 + (2 * FAC_LENGTH)]; 101 102 WORD32 alpha_q_re[MAX_SHORT_WINDOWS][SFB_NUM_MAX]; 103 WORD32 alpha_q_im[MAX_SHORT_WINDOWS][SFB_NUM_MAX]; 104 UWORD8 cplx_pred_used[MAX_SHORT_WINDOWS][SFB_NUM_MAX]; 105 106 WORD32 alpha_q_re_prev[SFB_NUM_MAX]; 107 WORD32 alpha_q_im_prev[SFB_NUM_MAX]; 108 WORD32 dmx_re_prev[BLOCK_LEN_LONG]; 109 110 VOID *sbr_scratch_mem_base; 111 112 WORD32 *coef_fix[MAX_NUM_CHANNELS]; 113 FLOAT32 *coef[MAX_NUM_CHANNELS]; 114 UWORD8 *ms_used[MAX_NUM_CHANNELS]; 115 WORD32 *coef_save[chans]; 116 117 WORD16 *factors[MAX_NUM_CHANNELS]; 118 UWORD8 *group_dis[MAX_NUM_CHANNELS]; 119 120 WORD32 tw_data_present[MAX_NUM_CHANNELS]; 121 WORD32 *tw_ratio[MAX_NUM_CHANNELS]; 122 ia_tns_frame_info_struct *pstr_tns[MAX_NUM_CHANNELS]; 123 124 ia_usac_lpd_decoder_handle str_tddec[MAX_NUM_CHANNELS]; 125 126 WORD32 arith_prev_n[MAX_NUM_CHANNELS]; 127 WORD8 c_prev[MAX_NUM_CHANNELS][1024 / 2 + 4]; 128 WORD8 c[MAX_NUM_CHANNELS][1024 / 2 + 4]; 129 130 WORD32 noise_filling_config[MAX_NUM_ELEMENTS]; 131 UWORD32 seed_value[MAX_NUM_CHANNELS]; 132 WORD32 present_chan; 133 134 WORD32 fac_data_present[MAX_NUM_CHANNELS]; 135 WORD32 fac_data[MAX_NUM_CHANNELS][FAC_LENGTH + 1]; 136 137 ia_sfb_info_struct *pstr_sfb_info[MAX_NUM_CHANNELS]; 138 ia_sfb_info_struct str_only_long_info; 139 ia_sfb_info_struct str_eight_short_info; 140 ia_sfb_info_struct *pstr_usac_winmap[NUM_WIN_SEQ]; 141 WORD16 sfb_width_short[(1 << LEN_MAX_SFBS)]; 142 143 WORD32 ccfl; 144 WORD32 len_subfrm; 145 WORD32 num_subfrm; 146 147 ia_handle_sbr_dec_inst_struct pstr_esbr_dec; 148 ia_aac_dec_sbr_bitstream_struct esbr_bit_str[2]; 149 150 WORD32 x_ac_dec[1024]; 151 WORD32 scratch_buffer[1024]; 152 153 FLOAT32 synth_buf[1883]; 154 FLOAT32 exc_buf[1453]; 155 FLOAT32 lp_flt_coff[290]; 156 WORD32 pitch[25]; 157 FLOAT32 pitch_gain[25]; 158 159 UWORD16 *huffman_code_book_scl; 160 UWORD32 *huffman_code_book_scl_index; 161 162 WORD32 *tns_coeff3_32; 163 164 WORD32 *tns_coeff4_32; 165 166 WORD32 (*tns_max_bands_tbl_usac)[16][2]; 167 168 WORD16 sfb_width_long[(1 << LEN_MAX_SFBL)]; 169 WORD32 usac_flag; 170 171 WORD32 arr_coef_fix[MAX_NUM_CHANNELS][(LN2 + LN2 / 8)]; 172 FLOAT32 arr_coef[MAX_NUM_CHANNELS][(LN2 + LN2 / 8)]; 173 WORD32 arr_coef_save[chans][(LN2 + LN2 / 8)]; 174 WORD16 arr_factors[MAX_NUM_CHANNELS][MAXBANDS]; 175 UWORD8 arr_group_dis[MAX_NUM_CHANNELS][NSHORT]; 176 WORD32 arr_tw_ratio[MAX_NUM_CHANNELS][NUM_TW_NODES]; 177 UWORD8 arr_ms_used[MAX_NUM_CHANNELS][MAXBANDS]; 178 ia_usac_lpd_decoder arr_str_tddec[MAX_NUM_CHANNELS]; 179 ia_tns_frame_info_struct arr_str_tns[MAX_NUM_CHANNELS]; 180 181 } ia_usac_data_struct; 182 183 VOID ixheaacd_tns_apply(ia_usac_data_struct *usac_data, WORD32 *spec, 184 WORD32 nbands, ia_sfb_info_struct *pstr_sfb_info, 185 ia_tns_frame_info_struct *pstr_tns); 186 187 WORD32 ixheaacd_calc_max_spectral_line_dec(WORD32 *ptr_tmp, WORD32 size); 188 189 WORD32 ixheaacd_calc_max_spectral_line_armv7(WORD32 *ptr_tmp, WORD32 size); 190 191 WORD32 ixheaacd_calc_max_spectral_line_armv8(WORD32 *ptr_tmp, WORD32 size); 192 193 WORD32 ixheaacd_tw_buff_update(ia_usac_data_struct *usac_data, WORD32 i, 194 ia_usac_lpd_decoder_handle st); 195 196 VOID ixheaacd_fix2flt_data(ia_usac_data_struct *usac_data, 197 ia_usac_lpd_decoder_handle st, WORD32 k); 198 199 VOID ixheaacd_td_frm_dec(ia_usac_data_struct *usac_data, WORD32 k, WORD32 mod0); 200 201 WORD32 ixheaacd_tw_frame_dec(ia_usac_data_struct *usac_data, WORD32 i_ch, 202 FLOAT32 sample_pos[], FLOAT32 tw_trans_len[], 203 WORD32 tw_start_stop[]); 204 205 WORD32 ixheaacd_fd_frm_dec(ia_usac_data_struct *usac_data, WORD32 i_ch); 206 207 WORD32 ixheaacd_acelp_mdct(WORD32 *ptr_in, WORD32 *ptr_out, WORD32 *preshift, 208 WORD32 length, WORD32 *ptr_scratch); 209 210 WORD32 ixheaacd_acelp_mdct_main(ia_usac_data_struct *usac_data, WORD32 *x, 211 WORD32 *y, WORD32 l, WORD32 m, 212 WORD32 *preshift); 213 214 WORD32 ixheaacd_fr_alias_cnx_fix(WORD32 *x_in, WORD32 len_subfr, WORD32 lfac, 215 WORD32 *iaq, WORD32 *izir, WORD32 *ifacdec, 216 WORD8 *qshift1, WORD8 qshift2, WORD8 qshift3, 217 WORD32 *preshift, WORD32 *ptr_scratch); 218 219 WORD32 ixheaacd_fwd_alias_cancel_tool( 220 ia_usac_data_struct *usac_data, ia_td_frame_data_struct *pstr_td_frame_data, 221 WORD32 fac_length, FLOAT32 *iaq, WORD32 gain); 222 223 WORD32 ixheaacd_lpd_bpf_fix(ia_usac_data_struct *usac_data, WORD32 is_short, 224 FLOAT32 out_buffer[], 225 ia_usac_lpd_decoder_handle st); 226 227 VOID ixheaacd_reset_acelp_data_fix(ia_usac_data_struct *usac_data, 228 ia_usac_lpd_decoder_handle st, 229 WORD32 *ptr_ola_buff, WORD32 last_was_short, 230 WORD32 tw_mdct); 231 #endif 232
