/****************************************************************************** * * * Copyright (C) 2018 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ***************************************************************************** * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore */ #include #include #include "ixheaacd_sbr_common.h" #include "ixheaac_type_def.h" #include "ixheaac_constants.h" #include "ixheaac_basic_ops32.h" #include "ixheaac_basic_ops16.h" #include "ixheaac_basic_ops40.h" #include "ixheaac_basic_ops.h" #include "ixheaacd_bitbuffer.h" #include "ixheaacd_defines.h" #include "ixheaacd_aac_rom.h" #include "ixheaacd_error_codes.h" #include "ixheaacd_pulsedata.h" #include "ixheaacd_pns.h" #include "ixheaacd_drc_data_struct.h" #include "ixheaacd_interface.h" #include "ixheaacd_info.h" #include "ixheaacd_cnst.h" #include "ixheaacd_sbrdecsettings.h" #include "ixheaacd_sbr_scale.h" #include "ixheaacd_common_rom.h" #include "ixheaacd_env_extr_part.h" #include "ixheaacd_sbr_rom.h" #include "ixheaacd_hybrid.h" #include "ixheaacd_ps_dec.h" #include "ixheaacd_qmf_dec.h" #include "ixheaacd_mps_polyphase.h" #include "ixheaacd_config.h" #include "ixheaacd_mps_struct_def.h" #include "ixheaacd_mps_res_rom.h" #include "ixheaacd_mps_aac_struct.h" #include "ixheaacd_mps_dec.h" #include "ixheaac_error_standards.h" #include "ixheaacd_sbrdecoder.h" #include "ixheaacd_acelp_info.h" #include "ixheaacd_tns_usac.h" #include "ixheaacd_ec_defines.h" #include "ixheaacd_ec_rom.h" #include "ixheaacd_ec_struct_def.h" #include "ixheaacd_main.h" #include "ixheaacd_channelinfo.h" #include "ixheaacd_ec.h" #include "ixheaacd_drc_dec.h" #include "ixheaacd_block.h" #include "ixheaacd_channel.h" #include "ixheaacd_sbr_payload.h" #include "ixheaacd_stereo.h" #include "ixheaacd_adts.h" #include "ixheaacd_audioobjtypes.h" #include "ixheaacd_memory_standards.h" #include "ixheaacd_latmdemux.h" #include "ixheaacd_aacdec.h" #include "ixheaacd_struct_def.h" #include "ixheaacd_headerdecode.h" #include "ixheaacd_multichannel.h" #include "ixheaacd_adts_crc_check.h" #include "ixheaacd_ld_mps_dec.h" #include "ixheaacd_hcr.h" #include "ixheaacd_struct.h" #define SIZEOF_INT(x) ((sizeof(x) + sizeof(WORD32) - 1) / sizeof(WORD32)) #define EXT_FILL_DATA 1 #define EXT_FIL 0 #define EXT_DATA_LENGTH 3 #define EXT_LDSAC_DATA 9 extern const ia_usac_samp_rate_info ixheaacd_samp_rate_info[]; WORD32 ixheaacd_aacdec_decodeframe( ia_exhaacplus_dec_api_struct *p_obj_exhaacplus_dec, ia_aac_dec_scratch_struct *aac_scratch_ptrs, VOID *time_data_tmp, FLAG frame_status, WORD *type, WORD *ch_idx, WORD init_flag, WORD channel, WORD *element_index_order, WORD skip_full_decode, WORD ch_fac, WORD slot_element, WORD max_channels, WORD32 total_channels, WORD32 frame_length, WORD32 frame_size, ia_drc_dec_struct *pstr_drc_dec, WORD32 object_type, WORD32 ch_config, ia_eld_specific_config_struct eld_specific_config, WORD16 adtsheader, ia_drc_dec_struct *drc_dummy, WORD32 ldmps_present, UWORD8 *slot_pos, UWORD8 *mps_buffer, WORD32 *mps_header, WORD32 *mps_bytes, WORD32 is_init, WORD32 first_frame) { WORD ch, ele_type; ia_aac_dec_state_struct *p_state_enhaacplus_dec; ia_aac_decoder_struct *aac_dec_handle; ia_bit_buf_struct *it_bit_buff; ixheaacd_latm_struct *latm_element; WORD error_code = (WORD)frame_status; WORD previous_element; WORD prev_data_ele_present = 0; WORD new_element; WORD32 num_ch = 0; WORD32 crc_reg = 0; ia_adts_crc_info_struct *ptr_adts_crc_info; WORD32 cnt_bits = 0; WORD32 eld_sbr_flag = eld_specific_config.ld_sbr_flag_present; WORD32 ld_sbr_crc_flag = eld_specific_config.ld_sbr_crc_flag; WORD32 aac_spect_data_resil_flag = eld_specific_config.aac_spect_data_resil_flag; WORD32 ele_ch = 0; ia_aac_sfb_code_book_struct *ptr_aac_sfb_code_book_data[CHANNELS]; ia_pns_stereo_data_struct *ptr_pns_stereo_data; WORD32 *work_buffer_core = aac_scratch_ptrs->base_scr_8k; WORD32 *work_buffer_1 = aac_scratch_ptrs->extra_scr_4k[0]; WORD32 *work_buffer_2 = aac_scratch_ptrs->extra_scr_4k[2]; p_state_enhaacplus_dec = p_obj_exhaacplus_dec->p_state_aac; WORD32 *time_data = (WORD32 *)time_data_tmp; aac_dec_handle = p_state_enhaacplus_dec->pstr_aac_dec_info[*ch_idx]; it_bit_buff = p_state_enhaacplus_dec->ptr_bit_stream; ptr_adts_crc_info = it_bit_buff->pstr_adts_crc_info; latm_element = &p_state_enhaacplus_dec->latm_struct_element; ptr_pns_stereo_data = (ia_pns_stereo_data_struct *)&work_buffer_1[2 * SIZEOF_INT(ia_aac_dec_channel_info_struct) + 2 * SIZEOF_INT(ia_aac_sfb_code_book_struct)]; aac_dec_handle->frame_status = 1; for (ch = 0; ch < channel; ch++) { const ia_aac_dec_imdct_tables_struct *pstr_imdct_tables; aac_dec_handle->pstr_aac_dec_ch_info[ch] = (ia_aac_dec_channel_info_struct *)&work_buffer_1[ch * SIZEOF_INT(ia_aac_dec_channel_info_struct)]; ptr_aac_sfb_code_book_data[ch] = (ia_aac_sfb_code_book_struct *)&work_buffer_1[2 * SIZEOF_INT(ia_aac_dec_channel_info_struct) + (ch * SIZEOF_INT(ia_aac_sfb_code_book_struct))]; aac_dec_handle->pstr_aac_dec_ch_info[ch]->ptr_scale_factor = ptr_aac_sfb_code_book_data[ch]->scale_factor; aac_dec_handle->pstr_aac_dec_ch_info[ch]->ptr_code_book = ptr_aac_sfb_code_book_data[ch]->code_book; aac_dec_handle->pstr_aac_dec_ch_info[ch]->ptr_spec_coeff = &work_buffer_core[ch * MAX_BINS_LONG]; if (object_type == AOT_ER_AAC_ELD) { aac_dec_handle->pstr_aac_dec_ch_info[ch]->ptr_spec_coeff = &work_buffer_core[2 * ch * MAX_BINS_LONG]; } aac_dec_handle->pstr_aac_dec_ch_info[ch]->pstr_stereo_info = &ptr_pns_stereo_data->str_stereo_info; aac_dec_handle->pstr_aac_dec_ch_info[ch]->pstr_pns_corr_info = &ptr_pns_stereo_data->str_pns_corr_info; aac_dec_handle->pstr_aac_dec_ch_info[ch]->pstr_pns_rand_vec_data = aac_dec_handle->pstr_pns_rand_vec_data; pstr_imdct_tables = aac_dec_handle->pstr_aac_tables->pstr_imdct_tables; if (960 != frame_length) { aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_long_window[0] = pstr_imdct_tables->only_long_window_sine; aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_short_window[0] = pstr_imdct_tables->only_short_window_sine; aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_long_window[1] = pstr_imdct_tables->only_long_window_kbd; aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_short_window[1] = pstr_imdct_tables->only_short_window_kbd; aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->ptr_long_window[0] = pstr_imdct_tables->only_long_window_sine; aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->ptr_short_window[0] = pstr_imdct_tables->only_short_window_sine; aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->ptr_long_window[1] = pstr_imdct_tables->only_long_window_kbd; aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->ptr_short_window[1] = pstr_imdct_tables->only_short_window_kbd; } else { aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_long_window[0] = pstr_imdct_tables->only_long_window_sine_960; aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_short_window[0] = pstr_imdct_tables->only_short_window_sine_120; aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_long_window[1] = pstr_imdct_tables->only_long_window_kbd_960; aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_short_window[1] = pstr_imdct_tables->only_short_window_kbd_120; aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->ptr_long_window[0] = pstr_imdct_tables->only_long_window_sine_960; aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->ptr_short_window[0] = pstr_imdct_tables->only_short_window_sine_120; aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->ptr_long_window[1] = pstr_imdct_tables->only_long_window_kbd_960; aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->ptr_short_window[1] = pstr_imdct_tables->only_short_window_kbd_120; } if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && frame_status == 0) { memset(&aac_dec_handle->pstr_aac_dec_ch_info[ch]->str_ics_info, 0, sizeof(ia_ics_info_struct)); } aac_dec_handle->pstr_aac_dec_ch_info[ch]->str_ics_info.frame_length = frame_length; if (object_type == AOT_ER_AAC_ELD || object_type == AOT_ER_AAC_LD || object_type == AOT_AAC_LTP) { if (512 == aac_dec_handle->samples_per_frame) { if (object_type != AOT_ER_AAC_ELD) { aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_long_window[1] = (WORD16 *)pstr_imdct_tables->low_overlap_win; aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_long_window[0] = (WORD16 *)pstr_imdct_tables->window_sine_512; aac_dec_handle->ptr_aac_dec_static_channel_info[ch] ->ptr_long_window[1] = (WORD16 *)pstr_imdct_tables->low_overlap_win; aac_dec_handle->ptr_aac_dec_static_channel_info[ch] ->ptr_long_window[0] = (WORD16 *)pstr_imdct_tables->window_sine_512; } else { aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_long_window[1] = (WORD16 *)pstr_imdct_tables->window_sine_512_eld; aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_long_window[0] = (WORD16 *)pstr_imdct_tables->window_sine_512_eld; } } else if (480 == aac_dec_handle->samples_per_frame) { if (object_type != AOT_ER_AAC_ELD) { aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_long_window[1] = (WORD16 *)pstr_imdct_tables->low_overlap_win_480; aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_long_window[0] = (WORD16 *)pstr_imdct_tables->window_sine_480; aac_dec_handle->ptr_aac_dec_static_channel_info[ch] ->ptr_long_window[1] = (WORD16 *)pstr_imdct_tables->low_overlap_win_480; aac_dec_handle->ptr_aac_dec_static_channel_info[ch] ->ptr_long_window[0] = (WORD16 *)pstr_imdct_tables->window_sine_480; } else { aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_long_window[1] = (WORD16 *)pstr_imdct_tables->window_sine_480_eld; aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_long_window[0] = (WORD16 *)pstr_imdct_tables->window_sine_480_eld; } } } if ((object_type == AOT_ER_AAC_LD) || (object_type == AOT_AAC_LTP)) { if (aac_dec_handle->samples_per_frame <= 512) { aac_dec_handle->pstr_aac_dec_ch_info[ch]->str_ics_info.ltp2.lag = aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->ltp_lag_1; aac_dec_handle->pstr_aac_dec_ch_info[ch]->str_ics_info.ltp.lag = aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->ltp_lag_2; } aac_dec_handle->pstr_aac_dec_ch_info[ch]->ltp_buf = aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->ltp_buf; aac_dec_handle->pstr_aac_dec_ch_info[ch]->ltp_lag = aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->ltp_lag_1; } aac_dec_handle->pstr_aac_dec_ch_info[ch]->scratch_buf_ptr = work_buffer_2; if (object_type == AOT_ER_AAC_ELD) { aac_dec_handle->pstr_aac_dec_ch_info[ch]->pulse_scratch = aac_scratch_ptrs->extra_scr_4k[3]; } } if (channel == 2) { if (aac_dec_handle->pstr_aac_dec_ch_info[1]->ptr_spec_coeff == aac_scratch_ptrs->extra_scr_4k[0]) { aac_dec_handle->pstr_aac_dec_ch_info[1]->ptr_spec_coeff = aac_dec_handle->pstr_aac_dec_ch_info[0]->ptr_spec_coeff; } } for (ch = 0; ch < channel; ch++) { ia_pns_info_struct *ptr_pns_info = &aac_dec_handle->pstr_aac_dec_ch_info[ch]->str_pns_info; memset(ptr_pns_info, 0, sizeof(ia_pns_info_struct)); } if (channel > 0) { ia_pns_correlation_info_struct *ptr_corr_info = aac_dec_handle->pstr_aac_dec_ch_info[0]->pstr_pns_corr_info; memset(ptr_corr_info->correlated, 0, sizeof(UWORD8) * PNS_BAND_FLAGS_SIZE); } for (ch = 0; ch < channel; ch++) { memset(&aac_dec_handle->pstr_aac_dec_ch_info[ch]->str_hcr_info, 0, sizeof(ia_hcr_info_struct)); ixheaacd_huff_code_reorder_tbl_init( &aac_dec_handle->pstr_aac_dec_ch_info[ch]->str_hcr_info); } for (ch = 0; ch < channel; ch++) { aac_dec_handle->pstr_aac_dec_ch_info[ch]->str_ics_info.ltp.data_present = 0; aac_dec_handle->pstr_aac_dec_ch_info[ch]->str_ics_info.ltp2.data_present = 0; } for (ch = 0; ch < channel; ch++) { if (object_type == AOT_ER_AAC_ELD || object_type == AOT_ER_AAC_LD) aac_dec_handle->pstr_aac_dec_ch_info[ch]->granule_len = aac_dec_handle->samples_per_frame; if (object_type == AOT_ER_AAC_LC) aac_dec_handle->pstr_aac_dec_ch_info[ch]->granule_len = aac_dec_handle->samples_per_frame / 8; } previous_element = ID_END; aac_dec_handle->pstr_sbr_bitstream->no_elements = 0; new_element = 0; ele_type = *type; cnt_bits = it_bit_buff->cnt_bits; WORD32 err = 0; jmp_buf local; if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal) { err = setjmp(local); } if (!err && frame_status) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal) { it_bit_buff->xaac_jmp_buf = &local; } if (((object_type != AOT_ER_AAC_ELD) && (object_type != AOT_ER_AAC_LD) && (object_type != AOT_ER_AAC_LC)) || (object_type < ER_OBJECT_START)) { while (ele_type != ID_END && aac_dec_handle->frame_status) { ele_type = (WORD)ixheaacd_read_bits_buf(it_bit_buff, 3); ixheaacd_read_bidirection(it_bit_buff, -3); if (it_bit_buff->cnt_bits < 3) { it_bit_buff->cnt_bits = -1; error_code = (WORD16)((WORD32)IA_XHEAAC_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES); break; } if ((ele_type == ID_FIL) || (ele_type == ID_DSE) || (new_element == 0)) { ele_type = (WORD)ixheaacd_read_bits_buf(it_bit_buff, 3); new_element = 1; } else if ((ele_type != ID_END)) { ele_type = -1; break; } else { ele_type = (WORD)ixheaacd_read_bits_buf(it_bit_buff, 3); } if (it_bit_buff->cnt_bits < 0) { aac_dec_handle->frame_status = 0; } switch (ele_type) { case ID_SCE: case ID_CPE: case ID_LFE: if (aac_dec_handle->frame_status) { ia_aac_dec_channel_info_struct *pstr_aac_dec_ch_info = aac_dec_handle->pstr_aac_dec_ch_info[LEFT]; ia_ics_info_struct *ptr_ics_info = &pstr_aac_dec_ch_info->str_ics_info; ele_ch = 1; if (ele_type == ID_CPE) { ele_ch = 2; } else { ele_ch = 1; } prev_data_ele_present = 1; if (ptr_adts_crc_info->crc_active == 1 && ptr_adts_crc_info->no_reg < 7) { crc_reg = ixheaacd_adts_crc_start_reg(ptr_adts_crc_info, it_bit_buff, CRC_ADTS_RAW_DATA_BLK_LEN); } pstr_aac_dec_ch_info->element_instance_tag = (WORD16)ixheaacd_read_bits_buf(it_bit_buff, 4); element_index_order[*ch_idx] = pstr_aac_dec_ch_info->element_instance_tag; pstr_aac_dec_ch_info->common_window = 0; ptr_ics_info->num_swb_window = 0; ptr_ics_info->sampling_rate_index = aac_dec_handle->sampling_rate_index; if ((object_type == AOT_ER_AAC_LD) || (object_type == AOT_AAC_LTP)) { ptr_ics_info->ltp.data_present = 0; ptr_ics_info->ltp2.data_present = 0; ptr_ics_info->predictor_data_present = 0; } if (ele_ch > 1) { aac_dec_handle->pstr_aac_dec_ch_info[RIGHT]->str_ics_info.num_swb_window = 0; aac_dec_handle->pstr_aac_dec_ch_info[RIGHT]->str_ics_info.sampling_rate_index = aac_dec_handle->sampling_rate_index; pstr_aac_dec_ch_info->common_window = (WORD16)ixheaacd_read_bits_buf(it_bit_buff, 1); if (pstr_aac_dec_ch_info->common_window) { error_code = ixheaacd_ics_read( it_bit_buff, ptr_ics_info, aac_dec_handle->num_swb_window, object_type, pstr_aac_dec_ch_info->common_window, aac_dec_handle->samples_per_frame); if (error_code) { aac_dec_handle->pstr_aac_dec_ch_info[RIGHT]->str_ics_info = aac_dec_handle->pstr_aac_dec_ch_info[LEFT]->str_ics_info; if (it_bit_buff->cnt_bits < 0) { error_code = (WORD16)((WORD32)IA_XHEAAC_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES); } goto _ia_handle_error; } aac_dec_handle->pstr_aac_dec_ch_info[RIGHT]->str_ics_info = pstr_aac_dec_ch_info->str_ics_info; ixheaacd_read_ms_data(it_bit_buff, pstr_aac_dec_ch_info); } } error_code = ixheaacd_individual_ch_stream( it_bit_buff, aac_dec_handle, ele_ch, frame_length, total_channels, object_type, eld_specific_config, ele_type); if (error_code) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { aac_dec_handle->frame_status = 0; } else { return error_code; } } if (ptr_adts_crc_info->crc_active == 1) { ixheaacd_adts_crc_end_reg(ptr_adts_crc_info, it_bit_buff, crc_reg); } if (it_bit_buff->cnt_bits < 0) { error_code = (WORD16)((WORD32)IA_XHEAAC_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES); } if (error_code) { goto _ia_handle_error; } _ia_handle_error: if (error_code) { aac_dec_handle->frame_status = 0; if ((ele_type >= ID_SCE) && (ele_type <= ID_LFE)) num_ch = num_ch + ele_ch; break; } else { error_code = ixheaacd_channel_pair_process( aac_dec_handle->pstr_aac_dec_ch_info, ele_ch, aac_dec_handle->pstr_aac_tables, total_channels, object_type, aac_spect_data_resil_flag, eld_specific_config.aac_sf_data_resil_flag, aac_scratch_ptrs->in_data, aac_scratch_ptrs->out_data, (VOID *)aac_dec_handle); if (error_code) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { aac_dec_handle->frame_status = 0; } else { return error_code; } } num_ch = num_ch + ele_ch; } } break; case ID_CCE: if (max_channels > 2) { prev_data_ele_present = 1; error_code = ixheaacd_dec_coupling_channel_element( it_bit_buff, aac_dec_handle, aac_dec_handle->sampling_rate_index, aac_dec_handle->pstr_aac_tables, aac_dec_handle->pstr_common_tables, &element_index_order[*ch_idx], (ia_enhaacplus_dec_ind_cc *)aac_dec_handle->p_ind_channel_info, total_channels, frame_length, object_type, eld_specific_config, ele_type); num_ch = num_ch + 1; if (error_code) { aac_dec_handle->frame_status = 0; if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { aac_dec_handle->frame_status = 0; } else { return error_code; } } else { error_code = ixheaacd_channel_pair_process( aac_dec_handle->pstr_aac_dec_ch_info, 1, aac_dec_handle->pstr_aac_tables, total_channels, object_type, aac_spect_data_resil_flag, eld_specific_config.aac_sf_data_resil_flag, aac_scratch_ptrs->in_data, aac_scratch_ptrs->out_data, (VOID *)aac_dec_handle); if (error_code) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { aac_dec_handle->frame_status = 0; } else { return error_code; } } } } else { error_code = (WORD32)((WORD32)IA_XHEAAC_DEC_EXE_FATAL_UNIMPLEMENTED_CCE); } if (it_bit_buff->cnt_bits < 0) { error_code = (WORD16)((WORD32)IA_XHEAAC_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES); goto _ia_handle_error; } break; case ID_DSE: case ID_PCE: case ID_FIL: { WORD32 flag = 1; if ((ele_type != ID_FIL) && (ptr_adts_crc_info->crc_active == 1) && (ptr_adts_crc_info->no_reg < 7)) { crc_reg = ixheaacd_adts_crc_start_reg(ptr_adts_crc_info, it_bit_buff, 0); } if (ele_type == ID_DSE) { ixheaacd_read_data_stream_element(it_bit_buff, &aac_dec_handle->byte_align_bits, p_obj_exhaacplus_dec->p_state_aac->pstr_drc_dec); } else if (ele_type == ID_PCE) { error_code = ixheaacd_decode_pce( it_bit_buff, &p_obj_exhaacplus_dec->aac_config.ui_pce_found_in_hdr, &p_obj_exhaacplus_dec->aac_config.str_prog_config); if (error_code != 0) { if (it_bit_buff->cnt_bits < 0) { error_code = (WORD16)((WORD32)IA_XHEAAC_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES); goto _ia_handle_error; } aac_dec_handle->frame_status = 0; if (error_code > 0) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { aac_dec_handle->frame_status = 0; } else { return IA_XHEAAC_DEC_EXE_NONFATAL_DECODE_FRAME_ERROR; } } else { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { aac_dec_handle->frame_status = 0; } else { return error_code; } } } } else if (ele_type == ID_FIL) { WORD32 bits_decoded = 0; if (object_type == AOT_ER_AAC_ELD) { bits_decoded = (it_bit_buff->size - it_bit_buff->cnt_bits); cnt_bits = (frame_size * 8 - bits_decoded); if (adtsheader == 1) { if (cnt_bits > it_bit_buff->cnt_bits) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { aac_dec_handle->frame_status = 0; } else { return IA_XHEAAC_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES; } } } } if (ixheaacd_check_for_sbr_payload( it_bit_buff, aac_dec_handle->pstr_sbr_bitstream, (WORD16)previous_element, pstr_drc_dec, object_type, adtsheader, cnt_bits, ld_sbr_crc_flag, drc_dummy, mps_buffer, mps_header, mps_bytes, is_init, &aac_dec_handle->is_first, p_obj_exhaacplus_dec->aac_config.ui_err_conceal)) { flag = 0; } } if (it_bit_buff->cnt_bits < 0) { error_code = (WORD16)((WORD32)IA_XHEAAC_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES); goto _ia_handle_error; } if (flag) { if (prev_data_ele_present == 0) { new_element = 0; } } if ((ele_type != ID_FIL) && (ptr_adts_crc_info->crc_active == 1)) { ixheaacd_adts_crc_end_reg(ptr_adts_crc_info, it_bit_buff, crc_reg); } if (ele_type == ID_PCE) { if (ptr_adts_crc_info->str_crc_reg_data[crc_reg].bit_buf_cnt) { ptr_adts_crc_info->str_crc_reg_data[crc_reg].max_bits = ptr_adts_crc_info->str_crc_reg_data[crc_reg].bit_buf_cnt; } } } break; case ID_END: error_code = 0; break; } previous_element = ele_type; if (init_flag) { if ((ele_type >= ID_SCE) && (ele_type <= ID_LFE)) { p_obj_exhaacplus_dec->aac_config.element_type[*ch_idx] = ele_type; } } } } else { { switch (ch_config) { default: if (aac_dec_handle->frame_status) { ia_aac_dec_channel_info_struct *pstr_aac_dec_ch_info = aac_dec_handle->pstr_aac_dec_ch_info[LEFT]; ia_ics_info_struct *ptr_ics_info = &pstr_aac_dec_ch_info->str_ics_info; if (ch_config == 2) ele_ch = 2, ele_type = 1; else ele_ch = 1, ele_type = 0; prev_data_ele_present = 1; if ((ptr_adts_crc_info->crc_active == 1) && (ptr_adts_crc_info->no_reg < 7)) { crc_reg = ixheaacd_adts_crc_start_reg(ptr_adts_crc_info, it_bit_buff, CRC_ADTS_RAW_DATA_BLK_LEN); } if (object_type != AOT_ER_AAC_ELD) pstr_aac_dec_ch_info->element_instance_tag = (WORD16)ixheaacd_read_bits_buf(it_bit_buff, 4); element_index_order[*ch_idx] = pstr_aac_dec_ch_info->element_instance_tag; pstr_aac_dec_ch_info->common_window = 0; ptr_ics_info->num_swb_window = 0; ptr_ics_info->sampling_rate_index = aac_dec_handle->sampling_rate_index; if (object_type == AOT_ER_AAC_LD) { ptr_ics_info->ltp.data_present = 0; ptr_ics_info->ltp2.data_present = 0; ptr_ics_info->predictor_data_present = 0; } if (ele_ch > 1) { aac_dec_handle->pstr_aac_dec_ch_info[RIGHT]->str_ics_info.num_swb_window = 0; aac_dec_handle->pstr_aac_dec_ch_info[RIGHT]->str_ics_info.sampling_rate_index = aac_dec_handle->sampling_rate_index; if (object_type != 39) pstr_aac_dec_ch_info->common_window = (WORD16)ixheaacd_read_bits_buf(it_bit_buff, 1); else pstr_aac_dec_ch_info->common_window = 1; if (pstr_aac_dec_ch_info->common_window) { error_code = ixheaacd_ics_read( it_bit_buff, ptr_ics_info, aac_dec_handle->num_swb_window, object_type, pstr_aac_dec_ch_info->common_window, aac_dec_handle->samples_per_frame); if (error_code) { aac_dec_handle->pstr_aac_dec_ch_info[RIGHT]->str_ics_info = aac_dec_handle->pstr_aac_dec_ch_info[LEFT]->str_ics_info; if (it_bit_buff->cnt_bits < 0) { error_code = (WORD16)((WORD32)IA_XHEAAC_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES); } goto _ia_handle_error1; } aac_dec_handle->pstr_aac_dec_ch_info[RIGHT]->str_ics_info = pstr_aac_dec_ch_info->str_ics_info; ixheaacd_read_ms_data(it_bit_buff, pstr_aac_dec_ch_info); { if (object_type == AOT_ER_AAC_LD) { IA_ERRORCODE temp = ixheaacd_ltp_decode(it_bit_buff, ptr_ics_info, object_type, aac_dec_handle->samples_per_frame, LEFT); if (temp != 0) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { p_obj_exhaacplus_dec->aac_config.frame_status = 0; } else { return temp; } } } } } } error_code = ixheaacd_individual_ch_stream( it_bit_buff, aac_dec_handle, ele_ch, frame_length, total_channels, object_type, eld_specific_config, ele_type); if (error_code) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { aac_dec_handle->frame_status = 0; } else { return error_code; } } if (ptr_adts_crc_info->crc_active == 1) { ixheaacd_adts_crc_end_reg(ptr_adts_crc_info, it_bit_buff, crc_reg); } if (it_bit_buff->cnt_bits < 0) { error_code = (WORD16)((WORD32)IA_XHEAAC_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES); } if (error_code) { goto _ia_handle_error1; } _ia_handle_error1: if (error_code) { aac_dec_handle->frame_status = 0; if ((ele_type >= ID_SCE) && (ele_type <= ID_LFE)) num_ch = num_ch + ele_ch; break; } else { error_code = ixheaacd_channel_pair_process( aac_dec_handle->pstr_aac_dec_ch_info, ele_ch, aac_dec_handle->pstr_aac_tables, total_channels, object_type, aac_spect_data_resil_flag, eld_specific_config.aac_sf_data_resil_flag, aac_scratch_ptrs->in_data, aac_scratch_ptrs->out_data, (VOID *)aac_dec_handle); if (error_code) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { aac_dec_handle->frame_status = 0; } else { return error_code; } } num_ch = num_ch + ele_ch; } } p_obj_exhaacplus_dec->aac_config.element_type[*ch_idx] = ele_ch - 1; break; } if ((object_type == AOT_ER_AAC_LC) || (!eld_sbr_flag)) { WORD32 cnt_bits; cnt_bits = it_bit_buff->cnt_bits; p_obj_exhaacplus_dec->p_state_aac->mps_dec_handle.ldmps_config.no_ldsbr_present = 1; if (cnt_bits >= 8) { error_code = ixheaacd_extension_payload( it_bit_buff, &cnt_bits, &p_obj_exhaacplus_dec->p_state_aac->mps_dec_handle); if (error_code) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { aac_dec_handle->frame_status = 0; } else { return error_code; } } } if (it_bit_buff->cnt_bits) { WORD32 alignment = it_bit_buff->bit_pos & 0x07; it_bit_buff->cnt_bits = (it_bit_buff->cnt_bits + alignment) & 7; it_bit_buff->bit_pos = 7; it_bit_buff->ptr_read_next++; } } else if ((object_type != AOT_ER_AAC_ELD) || (!eld_sbr_flag)) { WORD32 bits_decoded, cnt_bits; bits_decoded = (it_bit_buff->size - it_bit_buff->cnt_bits); cnt_bits = (frame_size * 8 - bits_decoded); if (object_type == AOT_ER_AAC_LC) cnt_bits = it_bit_buff->cnt_bits; p_obj_exhaacplus_dec->p_state_aac->mps_dec_handle.ldmps_config.no_ldsbr_present = 1; if (cnt_bits >= 8) { error_code = ixheaacd_extension_payload( it_bit_buff, &cnt_bits, &p_obj_exhaacplus_dec->p_state_aac->mps_dec_handle); if (error_code) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { aac_dec_handle->frame_status = 0; } else { return error_code; } } } if (((object_type == AOT_ER_AAC_ELD) || (object_type == AOT_ER_AAC_LD)) && (p_obj_exhaacplus_dec->aac_config.ld_decoder != 1)) { if (it_bit_buff->cnt_bits) { WORD32 alignment = it_bit_buff->bit_pos & 0x07; it_bit_buff->cnt_bits = (it_bit_buff->cnt_bits + alignment) & 7; it_bit_buff->bit_pos = 7; it_bit_buff->ptr_read_next++; } } else { if (it_bit_buff->bit_pos != 7) { WORD32 alignment = it_bit_buff->bit_pos & 0x07; it_bit_buff->cnt_bits -= alignment + 1; it_bit_buff->bit_pos += 7 - alignment; it_bit_buff->ptr_read_next++; } } } else { WORD32 bits_decoded, cnt_bits; bits_decoded = (it_bit_buff->size - it_bit_buff->cnt_bits); cnt_bits = (frame_size * 8 - bits_decoded); if (adtsheader == 1) { if (cnt_bits > it_bit_buff->cnt_bits) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { aac_dec_handle->frame_status = 0; } else { return IA_XHEAAC_DEC_EXE_NONFATAL_INSUFFICIENT_INPUT_BYTES; } } } ixheaacd_check_for_sbr_payload( it_bit_buff, aac_dec_handle->pstr_sbr_bitstream, (WORD16)(ch_config - 1), pstr_drc_dec, object_type, adtsheader, cnt_bits, ld_sbr_crc_flag, drc_dummy, mps_buffer, mps_header, mps_bytes, is_init, &aac_dec_handle->is_first, p_obj_exhaacplus_dec->aac_config.ui_err_conceal); } } } } if ((err || (aac_dec_handle->frame_status == 0) || (frame_status == 0)) && (!is_init)) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal) { aac_dec_handle->frame_status = 0; error_code = 0; num_ch = channel; ele_type = ID_END; p_obj_exhaacplus_dec->aac_config.frame_status = 0; it_bit_buff->cnt_bits = 0; aac_dec_handle->byte_align_bits = 0; } else { return err; } } if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && aac_dec_handle->conceal_count == 0) { for (ch = 0; ch < channel; ch++) { ixheaacd_aac_ec_init(&aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->str_ec_state); } } if (ele_type == ID_END && p_state_enhaacplus_dec->bs_format == LOAS_BSFORMAT) { WORD32 tmp; tmp = ((WORD32)latm_element->layer_info[0][0].frame_len_bits) - (it_bit_buff->initial_cnt_bits - it_bit_buff->cnt_bits); if (tmp > 0) ixheaacd_read_bidirection(it_bit_buff, tmp); if (latm_element->other_data_present) { WORD32 count_bits = (WORD32)latm_element->other_data_length; ixheaacd_read_bidirection(it_bit_buff, count_bits); } } if (object_type == AOT_ER_AAC_LD) { for (ch = 0; ch < channel; ch++) { aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->ltp_lag_1 = aac_dec_handle->pstr_aac_dec_ch_info[ch]->str_ics_info.ltp2.lag; aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->ltp_lag_2 = aac_dec_handle->pstr_aac_dec_ch_info[ch]->str_ics_info.ltp.lag; } } aac_dec_handle->frame_status = aac_dec_handle->frame_status && frame_status; aac_dec_handle->channels = num_ch; if (error_code == 0) if ((skip_full_decode == 0) || ((skip_full_decode == 1) && error_code)) { ia_ics_info_struct str_ics_info[2]; WORD32 *spec_coef[2]; WORD32 *scratch[2]; for (ch = 0; ch < channel; ch++) { str_ics_info[ch] = aac_dec_handle->pstr_aac_dec_ch_info[ch]->str_ics_info; spec_coef[ch] = aac_dec_handle->pstr_aac_dec_ch_info[ch]->ptr_spec_coeff; } scratch[0] = (WORD32 *)aac_scratch_ptrs->extra_scr_4k[2]; scratch[1] = (WORD32 *)aac_scratch_ptrs->extra_scr_4k[1]; error_code = ixheaacd_drc_map_channels( pstr_drc_dec, aac_dec_handle->channels, aac_dec_handle->pstr_aac_dec_ch_info[0]->str_ics_info.frame_length); if (error_code) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { error_code = 0; aac_dec_handle->frame_status = 0; } else { return error_code; } } for (ch = 0; ch < aac_dec_handle->channels; ch++) { WORD32 *overlap1 = aac_dec_handle->ptr_aac_dec_static_channel_info[ch]->overlap_add_data.ptr_overlap_buf; const WORD16 *ptr_long_window_next = aac_dec_handle->ptr_aac_dec_static_channel_info[ch] ->ptr_long_window[(int)str_ics_info[ch].window_shape]; const WORD16 *ptr_short_window_next = aac_dec_handle->ptr_aac_dec_static_channel_info[ch] ->ptr_short_window[(int)str_ics_info[ch].window_shape]; if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal) { ia_aac_dec_channel_info_struct *pstr_aac_dec_channel_info = aac_dec_handle->pstr_aac_dec_ch_info[ch]; ia_aac_dec_channel_info *pstr_aac_dec_static_channel_info = aac_dec_handle->ptr_aac_dec_static_channel_info[ch]; ia_aac_dec_channel_info_struct **ppstr_aac_dec_channel_info = &pstr_aac_dec_channel_info; ia_aac_dec_channel_info **ppstr_aac_dec_static_channel_info = &pstr_aac_dec_static_channel_info; ia_audio_specific_config_struct *pstr_audio_specific_config; pstr_audio_specific_config = p_state_enhaacplus_dec->ia_audio_specific_config; if (str_ics_info[ch].max_sfb > str_ics_info[ch].num_swb_window) { aac_dec_handle->frame_status = 0; } ixheaacd_aac_apply_ec( &(*ppstr_aac_dec_static_channel_info)->str_ec_state, *ppstr_aac_dec_channel_info, &ixheaacd_samp_rate_info[pstr_audio_specific_config->samp_frequency_index], aac_dec_handle->samples_per_frame, &str_ics_info[ch], aac_dec_handle->frame_status); aac_dec_handle->conceal_count = aac_dec_handle->conceal_count + 1; if (aac_dec_handle->frame_status) { aac_dec_handle->sbr_num_elements = aac_dec_handle->pstr_sbr_bitstream->no_elements; } else { aac_dec_handle->pstr_sbr_bitstream->no_elements = aac_dec_handle->sbr_num_elements; } if (first_frame == 1) skip_full_decode = 1; else skip_full_decode = 0; } if (pstr_drc_dec->drc_on) { ixheaacd_drc_apply(pstr_drc_dec, spec_coef[ch], str_ics_info[ch].window_sequence, ch, str_ics_info[ch].frame_length, p_obj_exhaacplus_dec->aac_config.ui_enh_sbr, object_type); } if (skip_full_decode == 0) { ixheaacd_imdct_process(aac_dec_handle->pstr_aac_dec_overlap_info[ch], spec_coef[ch], &str_ics_info[ch], time_data + slot_element, ch_fac, scratch[ch], aac_dec_handle->pstr_aac_tables, object_type, ldmps_present, slot_element); if (slot_pos != NULL) *slot_pos = slot_element; if (p_obj_exhaacplus_dec->p_state_aac->qshift_cnt > 15) { return IA_FATAL_ERROR; } p_obj_exhaacplus_dec->p_state_aac ->qshift_adj[p_obj_exhaacplus_dec->p_state_aac->qshift_cnt++] = str_ics_info[ch].qshift_adj; aac_dec_handle->ptr_aac_dec_static_channel_info[ch] ->overlap_add_data.win_shape = str_ics_info[ch].window_shape; aac_dec_handle->ptr_aac_dec_static_channel_info[ch] ->overlap_add_data.win_seq = str_ics_info[ch].window_sequence; if ((object_type == AOT_ER_AAC_LD) || (object_type == AOT_AAC_LTP)) { { if ((str_ics_info[ch].window_sequence == ONLY_LONG_SEQUENCE) || (str_ics_info[ch].window_sequence == LONG_STOP_SEQUENCE)) { ixheaacd_lt_update_state( aac_dec_handle->ptr_aac_dec_static_channel_info[ch] ->ltp_buf, time_data + slot_element, overlap1, aac_dec_handle->samples_per_frame, object_type, (WORD16)ch_fac, str_ics_info[ch].window_sequence, (WORD16 *)ptr_long_window_next, slot_element); } else { ixheaacd_lt_update_state( aac_dec_handle->ptr_aac_dec_static_channel_info[ch] ->ltp_buf, time_data + slot_element, overlap1, aac_dec_handle->samples_per_frame, object_type, (WORD16)ch_fac, str_ics_info[ch].window_sequence, (WORD16 *)ptr_short_window_next, slot_element); } } } if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal) { ia_aac_dec_channel_info *pstr_aac_dec_static_channel_info = aac_dec_handle->ptr_aac_dec_static_channel_info[ch]; ia_ec_state_str *pstr_ec_state = &pstr_aac_dec_static_channel_info->str_ec_state; WORD32 k; if (pstr_ec_state->fade_idx < MAX_FADE_FRAMES) { WORD32 fade_fac = ia_ec_fade_factors_fix[pstr_ec_state->fade_idx]; for (k = 0; k < str_ics_info[ch].frame_length; k++) { time_data[k] = ixheaac_mul32_sh(time_data[k], fade_fac, 30); } } else { memset(time_data, 0, str_ics_info[ch].frame_length * sizeof(time_data[0])); } } slot_element++; } } } if (ele_type == ID_END) { if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal) { if (err && !is_init) { aac_dec_handle->frame_status = 0; } else { ixheaacd_byte_align(it_bit_buff, &aac_dec_handle->byte_align_bits); if (p_state_enhaacplus_dec->bs_format == LOAS_BSFORMAT) { ixheaacd_byte_align(it_bit_buff, &it_bit_buff->audio_mux_align); } } } else { ixheaacd_byte_align(it_bit_buff, &aac_dec_handle->byte_align_bits); if (p_state_enhaacplus_dec->bs_format == LOAS_BSFORMAT) { ixheaacd_byte_align(it_bit_buff, &it_bit_buff->audio_mux_align); } } } *type = ele_type; aac_dec_handle->block_number = ixheaac_add32(aac_dec_handle->block_number, 1); if (p_obj_exhaacplus_dec->aac_config.ui_err_conceal && !is_init) { p_obj_exhaacplus_dec->aac_config.frame_status = aac_dec_handle->frame_status; return IA_NO_ERROR; } else { return error_code; } } WORD32 ixheaacd_extension_payload(ia_bit_buf_struct *it_bit_buff, WORD32 *cnt, ia_mps_dec_state_struct *self) { WORD16 extension_type; WORD32 len, add_len; WORD32 i; WORD32 fill_nibble; WORD32 err = 0; extension_type = (WORD16)ixheaacd_read_bits_buf(it_bit_buff, 4); switch (extension_type) { case EXT_FILL_DATA: fill_nibble = ixheaacd_read_bits_buf(it_bit_buff, 4); if (fill_nibble == 0) { for (i = 0; i < (*cnt >> 3) - 1; i++) { if (it_bit_buff->cnt_bits >= 8) ixheaacd_read_bits_buf(it_bit_buff, 8); else ixheaacd_read_bits_buf(it_bit_buff, it_bit_buff->cnt_bits); } } else err = -1; *cnt = it_bit_buff->cnt_bits; break; case EXT_DATA_LENGTH: len = ixheaacd_read_bits_buf(it_bit_buff, 4); if (len == 15) { add_len = ixheaacd_read_bits_buf(it_bit_buff, 8); len += add_len; if (add_len == 255) { len += ixheaacd_read_bits_buf(it_bit_buff, 16); } } len <<= 3; ixheaacd_extension_payload(it_bit_buff, cnt, self); break; case EXT_LDSAC_DATA: self->parse_nxt_frame = 1; ixheaacd_read_bits_buf(it_bit_buff, 2);/*anc_type*/ ixheaacd_read_bits_buf(it_bit_buff, 2);/*anc_start_stop*/ if (self->ldmps_config.ldmps_present_flag == 1) { err = ixheaacd_ld_mps_frame_parsing(self, it_bit_buff); if (err) return err; } *cnt = it_bit_buff->cnt_bits; break; case EXT_FIL: default: for (i = 0; i < (*cnt) - 4; i++) { ixheaacd_skip_bits_buf(it_bit_buff, 1);/*discard*/ } *cnt = it_bit_buff->cnt_bits; break; } return err; }