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 #include "string.h" 21 #include "ixheaacd_sbr_common.h" 22 #include <ixheaacd_type_def.h> 23 24 #include <ixheaacd_type_def.h> 25 #include "ixheaacd_constants.h" 26 #include <ixheaacd_basic_ops32.h> 27 #include <ixheaacd_basic_ops16.h> 28 #include <ixheaacd_basic_ops40.h> 29 #include "ixheaacd_bitbuffer.h" 30 #include "ixheaacd_defines.h" 31 #include <ixheaacd_aac_rom.h> 32 #include "ixheaacd_pulsedata.h" 33 34 #include "ixheaacd_pns.h" 35 #include "ixheaacd_drc_data_struct.h" 36 37 #include "ixheaacd_lt_predict.h" 38 39 #include "ixheaacd_channelinfo.h" 40 #include "ixheaacd_drc_dec.h" 41 #include "ixheaacd_sbrdecoder.h" 42 43 #include "ixheaacd_audioobjtypes.h" 44 #include "ixheaacd_sbrdecsettings.h" 45 #include "ixheaacd_memory_standards.h" 46 #include "ixheaacd_error_codes.h" 47 48 #include "ixheaacd_defines.h" 49 50 #include "ixheaacd_sbr_scale.h" 51 #include "ixheaacd_lpp_tran.h" 52 #include "ixheaacd_env_extr_part.h" 53 #include <ixheaacd_sbr_rom.h> 54 55 #include "ixheaacd_hybrid.h" 56 #include "ixheaacd_ps_dec.h" 57 #include "ixheaacd_ps_bitdec.h" 58 59 #include "ixheaacd_pulsedata.h" 60 61 #include "ixheaacd_pns.h" 62 63 #include "ixheaacd_channelinfo.h" 64 65 #include "ixheaacd_env_extr.h" 66 #include "ixheaacd_common_rom.h" 67 #include "ixheaacd_block.h" 68 #include "ixheaacd_channel.h" 69 #include "ixheaacd_audioobjtypes.h" 70 #include "ixheaacd_latmdemux.h" 71 #include "ixheaacd_aacdec.h" 72 #include "ixheaacd_mps_polyphase.h" 73 #include "ixheaacd_config.h" 74 #include "ixheaacd_mps_dec.h" 75 #include "ixheaacd_struct_def.h" 76 #include "ixheaacd_headerdecode.h" 77 78 #include "ixheaacd_multichannel.h" 79 80 #include <ixheaacd_basic_op.h> 81 #include "ixheaacd_intrinsics.h" 82 83 static PLATFORM_INLINE UWORD32 84 ixheaacd_aac_showbits_7(ia_bit_buf_struct *it_bit_buff) { 85 UWORD8 *v = it_bit_buff->ptr_read_next; 86 UWORD32 b = 0; 87 UWORD32 x; 88 b = (((WORD32)v[0] << 8) | (WORD32)(v[1])); 89 x = (UWORD32)b << (15 + 8 - it_bit_buff->bit_pos); 90 x = (UWORD32)x >> (25); 91 return x; 92 } 93 94 WORD ixheaacd_get_channel_mask( 95 ia_exhaacplus_dec_api_struct *p_obj_enhaacplus_dec) { 96 WORD ixheaacd_drc_offset = 0, channel_mask = 0; 97 WORD flag1 = 0, flag2 = 0; 98 WORD ch_idx; 99 WORD *ptr_slot_element = p_obj_enhaacplus_dec->aac_config.slot_element; 100 WORD *ptr_element_type = p_obj_enhaacplus_dec->aac_config.element_type; 101 102 memset(ptr_slot_element, 0, sizeof(WORD) * MAX_BS_ELEMENT); 103 104 for (ch_idx = 0; ch_idx < MAX_BS_ELEMENT; ch_idx++) { 105 if (ptr_element_type[ch_idx] == 1) { 106 channel_mask += 0x3; 107 ptr_slot_element[ch_idx] = ixheaacd_drc_offset; 108 ixheaacd_drc_offset += 2; 109 flag1 = ch_idx + 1; 110 break; 111 } 112 } 113 114 for (ch_idx = 0; ch_idx < MAX_BS_ELEMENT; ch_idx++) { 115 if (ptr_element_type[ch_idx] == 0) { 116 channel_mask += 0x4; 117 ptr_slot_element[ch_idx] = ixheaacd_drc_offset; 118 ixheaacd_drc_offset += 1; 119 flag2 = ch_idx + 1; 120 break; 121 } 122 } 123 for (ch_idx = 0; ch_idx < MAX_BS_ELEMENT; ch_idx++) { 124 if (ptr_element_type[ch_idx] == 3) { 125 channel_mask += 0x8; 126 ptr_slot_element[ch_idx] = ixheaacd_drc_offset; 127 ixheaacd_drc_offset += 1; 128 break; 129 } 130 } 131 for (ch_idx = flag1; ch_idx < MAX_BS_ELEMENT; ch_idx++) { 132 if (ptr_element_type[ch_idx] == 1) { 133 channel_mask += 0x30; 134 ptr_slot_element[ch_idx] = ixheaacd_drc_offset; 135 ixheaacd_drc_offset += 2; 136 flag1 = ch_idx + 1; 137 break; 138 } 139 } 140 for (ch_idx = flag2; ch_idx < MAX_BS_ELEMENT; ch_idx++) { 141 if (ptr_element_type[ch_idx] == 0) { 142 channel_mask += 0x100; 143 ptr_slot_element[ch_idx] = ixheaacd_drc_offset; 144 ixheaacd_drc_offset += 1; 145 break; 146 } 147 } 148 for (ch_idx = flag1; ch_idx < MAX_BS_ELEMENT; ch_idx++) { 149 if (ptr_element_type[ch_idx] == 1) { 150 { 151 channel_mask += (0x40 + 0x80); 152 ptr_slot_element[ch_idx] = ixheaacd_drc_offset; 153 ixheaacd_drc_offset += 2; 154 break; 155 } 156 } 157 } 158 159 return channel_mask; 160 } 161 162 VOID ixheaacd_read_data_stream_element(ia_bit_buf_struct *it_bit_buff, 163 WORD32 *byte_align_bits, 164 ia_drc_dec_struct *drc_handle) { 165 ia_bit_buf_struct temp_bs; 166 WORD32 count = ixheaacd_read_bits_buf(it_bit_buff, 13); 167 WORD32 cnt = (count & 0xff); 168 WORD32 start_pos = 0; 169 170 if (cnt == 255) { 171 cnt += ixheaacd_read_bits_buf(it_bit_buff, 8); 172 } 173 174 if ((count & 0x0100) >> 8) { 175 ixheaacd_byte_align(it_bit_buff, byte_align_bits); 176 } 177 178 { 179 memcpy(&temp_bs, it_bit_buff, sizeof(ia_bit_buf_struct)); 180 start_pos = temp_bs.cnt_bits; 181 182 if (ixheaacd_read_bits_buf(&temp_bs, 8) == DVB_ANC_DATA_SYNC_BYTE) { 183 int dmx_level_present, compression_present; 184 int coarse_gain_present, fine_grain_present; 185 186 ixheaacd_read_bits_buf(&temp_bs, 8); 187 188 ixheaacd_read_bits_buf(&temp_bs, 3); 189 dmx_level_present = ixheaacd_read_bits_buf(&temp_bs, 1); 190 ixheaacd_read_bits_buf(&temp_bs, 1); 191 compression_present = ixheaacd_read_bits_buf(&temp_bs, 1); 192 coarse_gain_present = ixheaacd_read_bits_buf(&temp_bs, 1); 193 fine_grain_present = ixheaacd_read_bits_buf(&temp_bs, 1); 194 195 if (dmx_level_present) ixheaacd_read_bits_buf(&temp_bs, 8); 196 197 if (compression_present) ixheaacd_read_bits_buf(&temp_bs, 16); 198 199 if (coarse_gain_present) ixheaacd_read_bits_buf(&temp_bs, 16); 200 201 if (fine_grain_present) ixheaacd_read_bits_buf(&temp_bs, 16); 202 203 if (!drc_handle->dvb_anc_data_present && temp_bs.cnt_bits >= 0) { 204 drc_handle->dvb_anc_data_pos = start_pos; 205 drc_handle->dvb_anc_data_present = 1; 206 } 207 } 208 } 209 210 it_bit_buff->ptr_read_next += cnt; 211 it_bit_buff->cnt_bits -= ((cnt) << 3); 212 213 if (it_bit_buff->ptr_read_next > it_bit_buff->ptr_bit_buf_end) { 214 it_bit_buff->ptr_read_next = it_bit_buff->ptr_bit_buf_base; 215 } 216 } 217 218 VOID ixheaacd_read_fill_element(ia_bit_buf_struct *it_bit_buff, 219 ia_drc_dec_struct *drc_dummy, 220 ia_drc_dec_struct *ptr_drc_dec) { 221 WORD32 count; 222 count = ixheaacd_read_bits_buf(it_bit_buff, 4); 223 224 if ((count - 15) == 0) { 225 count = ixheaacd_read_bits_buf(it_bit_buff, 8); 226 count = (count + 14); 227 } 228 229 if (count > 0) { 230 WORD32 extension_type; 231 232 extension_type = ixheaacd_read_bits_buf(it_bit_buff, 4); 233 234 if (extension_type == EXT_DYNAMIC_RANGE) { 235 ptr_drc_dec->drc_element_found = 1; 236 count -= 237 ixheaacd_dec_drc_read_element(ptr_drc_dec, drc_dummy, it_bit_buff); 238 239 } else { 240 ixheaacd_read_bits_buf(it_bit_buff, 4); 241 242 it_bit_buff->ptr_read_next += count - 1; 243 it_bit_buff->cnt_bits -= ((count - 1) << 3); 244 245 if (it_bit_buff->ptr_read_next > it_bit_buff->ptr_bit_buf_end) { 246 it_bit_buff->ptr_read_next = it_bit_buff->ptr_bit_buf_base; 247 } 248 } 249 } 250 } 251 252 WORD32 ixheaacd_get_element_index_tag( 253 ia_exhaacplus_dec_api_struct *p_obj_enhaacplus_dec, WORD ch_idx1, 254 WORD *ch_idx, WORD *channel, WORD *ele_idx_order, WORD total_elements, 255 WORD8 *element_used, WORD total_channels, ia_drc_dec_struct *pstr_drc_dec, 256 ia_drc_dec_struct *drc_dummy) { 257 WORD element_tag, j; 258 ia_aac_dec_state_struct *p_state_enhaacplus_dec = 259 p_obj_enhaacplus_dec->p_state_aac; 260 261 ia_bit_buf_struct *it_bit_buff = p_state_enhaacplus_dec->ptr_bit_stream; 262 WORD element_idx; 263 WORD element_type; 264 265 ia_aac_decoder_struct *aac_dec_handle = 266 p_state_enhaacplus_dec->pstr_aac_dec_info[ch_idx1]; 267 268 *ch_idx = ch_idx1; 269 270 if (p_state_enhaacplus_dec->bs_format != LOAS_BSFORMAT) { 271 if (ch_idx1 == 0) { 272 ixheaacd_byte_align(it_bit_buff, &aac_dec_handle->byte_align_bits); 273 } 274 } 275 { 276 if (ch_idx1 == 0) { 277 aac_dec_handle->byte_align_bits = it_bit_buff->cnt_bits; 278 } 279 } 280 281 if (it_bit_buff->cnt_bits < 3) { 282 it_bit_buff->cnt_bits = -1; 283 return (WORD16)( 284 (WORD32)IA_ENHAACPLUS_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES); 285 } 286 287 element_tag = (WORD)ixheaacd_read_bits_buf(it_bit_buff, 7); 288 ixheaacd_read_bidirection(it_bit_buff, -7); 289 290 element_idx = (element_tag & 0xF); 291 element_type = (element_tag >> 4) & 0x7; 292 293 p_obj_enhaacplus_dec->aac_config.str_prog_config.alignment_bits = 294 it_bit_buff->bit_pos; 295 296 while (element_type == 4 || element_type == 5 || element_type == 6) { 297 WORD type = (WORD)ixheaacd_read_bits_buf(it_bit_buff, 3); 298 299 if (it_bit_buff->cnt_bits < 3) { 300 it_bit_buff->cnt_bits = -1; 301 return (WORD16)( 302 (WORD32)IA_ENHAACPLUS_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES); 303 } 304 305 if (type == 4) { 306 ixheaacd_read_data_stream_element( 307 it_bit_buff, &aac_dec_handle->byte_align_bits, pstr_drc_dec); 308 } 309 if (type == 5) { 310 WORD32 error_code = 0; 311 error_code = ixheaacd_decode_pce( 312 it_bit_buff, &p_obj_enhaacplus_dec->aac_config.ui_pce_found_in_hdr, 313 &p_obj_enhaacplus_dec->aac_config.str_prog_config); 314 if (error_code != 0) { 315 if (it_bit_buff->cnt_bits < 0) { 316 return (WORD16)( 317 (WORD32)IA_ENHAACPLUS_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES); 318 } 319 return IA_ENHAACPLUS_DEC_EXE_NONFATAL_DECODE_FRAME_ERROR; 320 } 321 } 322 if (type == 6) { 323 ixheaacd_read_fill_element(it_bit_buff, drc_dummy, pstr_drc_dec); 324 } 325 326 if (it_bit_buff->cnt_bits < 7) { 327 it_bit_buff->cnt_bits = -1; 328 return (WORD16)( 329 (WORD32)IA_ENHAACPLUS_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES); 330 } 331 332 element_tag = (WORD)ixheaacd_aac_showbits_7(it_bit_buff); 333 element_idx = (element_tag & 0xF); 334 element_type = (element_tag >> 4) & 0x7; 335 } 336 337 if (total_elements == 2 && total_channels == 2 && 338 p_state_enhaacplus_dec->p_config->ui_pce_found_in_hdr == 2 && 339 ch_idx1 == 0) { 340 ixheaacd_fill_prog_config_slots(p_state_enhaacplus_dec); 341 } 342 343 *channel = 1; 344 if (element_type == 1) { 345 *channel = 2; 346 } 347 348 for (j = 0; j < total_elements; j++) { 349 if (p_obj_enhaacplus_dec->aac_config.element_type[j] == element_type && 350 (element_idx == ele_idx_order[j]) && (element_used[j] == 0)) { 351 *ch_idx = j; 352 element_used[j] = 1; 353 break; 354 } 355 } 356 357 if (j == total_elements) { 358 if (it_bit_buff->cnt_bits < 0) { 359 return (WORD16)( 360 (WORD32)IA_ENHAACPLUS_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES); 361 } 362 363 ixheaacd_read_bidirection( 364 it_bit_buff, (WORD16)(it_bit_buff->cnt_bits - it_bit_buff->size)); 365 return IA_ENHAACPLUS_DEC_EXE_NONFATAL_ELE_INSTANCE_TAG_NOT_FOUND; 366 } else 367 return 0; 368 } 369
