/****************************************************************************** * * * Copyright (C) 2023 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 #include "ixheaac_type_def.h" #include "impd_drc_common_enc.h" #include "impd_drc_uni_drc.h" #include "impd_drc_tables.h" #include "impd_drc_api.h" #include "ixheaace_api.h" #include "ixheaac_error_standards.h" #include "ixheaace_error_codes.h" #include "ixheaace_mps_common_fix.h" #include "ixheaace_mps_defines.h" #include "ixheaace_mps_common_define.h" #include "ixheaac_constants.h" #include "ixheaace_bitbuffer.h" #include "ixheaace_sbr_def.h" #include "ixheaace_mps_buf.h" #include "ixheaace_mps_lib.h" #include "ixheaace_mps_main_structure.h" #include "ixheaace_mps_bitstream.h" #include "ixheaace_mps_onset_detect.h" #include "ixheaace_mps_filter.h" #include "ixheaace_mps_param_extract.h" #include "ixheaace_mps_static_gain.h" #include "ixheaace_mps_dmx_tdom_enh.h" #include "ixheaace_mps_tools_rom.h" #include "ixheaace_mps_qmf.h" #include "ixheaace_mps_struct_def.h" #include "ixheaace_mps_sac_polyphase.h" #include "ixheaace_mps_sac_hybfilter.h" #include "ixheaace_mps_spatial_bitstream.h" #include "ixheaace_mps_tree.h" #include "ixheaace_mps_rom.h" #include "ixheaace_mps_delay.h" #include "ixheaace_mps_frame_windowing.h" #include "ixheaace_mps_structure.h" #include "ixheaace_mps_memory.h" #include "ixheaace_mps_enc.h" #include "ixheaac_basic_ops32.h" #include "ixheaac_basic_ops40.h" #include "ixheaac_basic_ops.h" static UWORD8 ixheaace_mps_212_space_get_num_qmf_bands(const UWORD32 num_sample_rate) { UWORD8 num_qmf_bands = 0; if (num_sample_rate < 27713) num_qmf_bands = 32; else if (num_sample_rate < 55426) num_qmf_bands = 64; return num_qmf_bands; } static VOID ixheaace_mps_212_space_tree_open(ixheaace_mps_pstr_space_tree *pstr_ph_space_tree, ixheaace_mps_212_memory_struct *pstr_mps_memory) { ixheaace_mps_pstr_space_tree pstr_space_tree = NULL; WORD32 box; pstr_space_tree = &pstr_mps_memory->spacce_tree; for (box = 0; box < IXHEAACE_MPS_MAX_NUM_BOXES; box++) { ixheaace_mps_pstr_tto_box pstr_tto_box = NULL; pstr_tto_box = &pstr_mps_memory->tto_box; if (NULL != pstr_space_tree) { pstr_space_tree->pstr_tto_box[box] = pstr_tto_box; } } *pstr_ph_space_tree = pstr_space_tree; } static VOID ixheaace_mps_212_init_num_param_bands( ixheaace_mps_pstr_space_structure pstr_space_enc, const WORD32 num_param_bands) { WORD32 k = 0; const WORD32 n = sizeof(valid_bands_ld) / sizeof(UWORD8); const UWORD8 *p_bands = valid_bands_ld; while (k < n && p_bands[k] != (UWORD8)num_param_bands) ++k; if (k == n) { pstr_space_enc->num_param_bands = IXHEAACE_MPS_SAC_BANDS_INVALID; } else { pstr_space_enc->num_param_bands = num_param_bands; } } static IA_ERRORCODE ixheaace_mps_212_configure( ixheaace_mps_pstr_space_structure pstr_space_enc, const ixheaace_mps_pstr_spece_enc_setup pstr_h_set_up) { IA_ERRORCODE error = IA_NO_ERROR; pstr_space_enc->num_sample_rate = pstr_h_set_up->sample_rate; pstr_space_enc->num_qmf_bands = ixheaace_mps_212_space_get_num_qmf_bands(pstr_space_enc->num_sample_rate); pstr_space_enc->time_alignment = pstr_h_set_up->time_alignment; pstr_space_enc->quant_mode = pstr_h_set_up->quant_mode; pstr_space_enc->use_coarse_quant_cld = pstr_h_set_up->b_use_coarse_quant; pstr_space_enc->use_coarse_quant_cpc = pstr_h_set_up->b_use_coarse_quant; pstr_space_enc->use_frame_keep = (pstr_h_set_up->b_ld_mode == 2); pstr_space_enc->use_coarse_quant_icc = 0; pstr_space_enc->use_coarse_quant_arb_dmx = 0; pstr_space_enc->independency_factor = pstr_h_set_up->independency_factor; pstr_space_enc->independency_count = 0; pstr_space_enc->independency_flag = 1; pstr_space_enc->num_hybrid_bands = pstr_space_enc->num_qmf_bands; pstr_space_enc->num_frame_time_slots = pstr_h_set_up->frame_time_slots; ixheaace_mps_212_init_num_param_bands(pstr_space_enc, pstr_h_set_up->num_param_bands); return error; } static WORD32 ixheaace_mps_212_get_analysis_length_time_slots(FLOAT32 *ptr_frame_window_ana, WORD32 num_time_slots) { WORD32 i; for (i = num_time_slots - 1; i >= 0; i--) { if (ptr_frame_window_ana[i] != 0) { break; } } num_time_slots = i + 1; return num_time_slots; } static WORD32 ixheaace_mps_212_get_analysis_start_time_slot(FLOAT32 *ptr_frame_window_ana, WORD32 num_time_slots) { WORD32 start_time_slot = 0; WORD32 i; for (i = 0; i < num_time_slots; i++) { if (ptr_frame_window_ana[i] != 0) { break; } } start_time_slot = i; return start_time_slot; } static VOID ixheaace_mps_212_memcpy_flex_pcm(FLOAT32 *const ptr_dst, const WORD32 dst_stride, const FLOAT32 *const ptr_src, const WORD32 src_stride, const WORD32 num_samples) { WORD32 i; for (i = 0; i < num_samples; i++) { ptr_dst[i * dst_stride] = ptr_src[i * src_stride]; } } static IA_ERRORCODE ixheaace_mps_212_feed_de_inter_pre_scale( ixheaace_mps_pstr_space_structure pstr_space_enc, FLOAT32 const *const ptr_samples, FLOAT32 *const ptr_output_samples, WORD32 const num_samples, UWORD32 const is_input_inter_leaved, UWORD32 const input_buffer_size_per_channel, UWORD32 *const ptr_n_samples_fed) { IA_ERRORCODE error = IA_NO_ERROR; WORD32 ch; const WORD32 num_ch_in = pstr_space_enc->n_input_channels; const WORD32 num_ch_in_with_dmx = num_ch_in; const WORD32 samples_to_feed = MIN(num_samples, pstr_space_enc->n_samples_next - pstr_space_enc->n_samples_valid); const WORD32 num_samples_per_channel = samples_to_feed / num_ch_in_with_dmx; if ((samples_to_feed < 0) || (samples_to_feed % num_ch_in_with_dmx != 0) || (samples_to_feed > num_ch_in_with_dmx * (WORD32)pstr_space_enc->n_frame_length)) { return IA_EXHEAACE_CONFIG_NONFATAL_MPS_INVALID_CONFIG; } const FLOAT32 *p_input_mps; const FLOAT32 *p_input_2_mps; { p_input_mps = ptr_samples; p_input_2_mps = ptr_samples + (pstr_space_enc->n_input_delay * num_ch_in_with_dmx); } for (ch = 0; ch < num_ch_in; ch++) { memcpy(&(pstr_space_enc->time_signal_in[ch][0]), &(pstr_space_enc->time_signal_delay_in[ch][0]), pstr_space_enc->n_surround_analysis_buffer_delay * sizeof(FLOAT32)); if (is_input_inter_leaved) { ixheaace_mps_212_memcpy_flex_pcm( &(pstr_space_enc->time_signal_in[ch][pstr_space_enc->n_surround_analysis_buffer_delay]), 1, p_input_mps + ch, num_ch_in_with_dmx, pstr_space_enc->n_input_delay); ixheaace_mps_212_memcpy_flex_pcm( &(pstr_space_enc->time_signal_in[ch][pstr_space_enc->n_surround_analysis_buffer_delay + pstr_space_enc->n_input_delay]), 1, p_input_2_mps + ch, num_ch_in_with_dmx, num_samples_per_channel - pstr_space_enc->n_input_delay); } else { memcpy( &(pstr_space_enc->time_signal_in[ch][pstr_space_enc->n_surround_analysis_buffer_delay]), p_input_mps + ch * input_buffer_size_per_channel, pstr_space_enc->n_input_delay * sizeof(FLOAT32)); memcpy( &(pstr_space_enc->time_signal_in[ch][pstr_space_enc->n_surround_analysis_buffer_delay + pstr_space_enc->n_input_delay]), p_input_2_mps + ch * input_buffer_size_per_channel, (num_samples_per_channel - pstr_space_enc->n_input_delay) * sizeof(FLOAT32)); } memcpy(&(pstr_space_enc->time_signal_delay_in[ch][0]), &(pstr_space_enc->time_signal_in[ch][pstr_space_enc->n_frame_length]), pstr_space_enc->n_surround_analysis_buffer_delay * sizeof(FLOAT32)); } error = ixheaace_mps_212_apply_enhanced_time_domain_dmx( pstr_space_enc->pstr_enhanced_time_dmx, pstr_space_enc->time_signal_in, ptr_output_samples, pstr_space_enc->n_surround_analysis_buffer_delay); if (error) { return error; } pstr_space_enc->n_samples_valid += samples_to_feed; *ptr_n_samples_fed = samples_to_feed; return error; } static IA_ERRORCODE ixheaace_mps_212_init_delay_compensation( ixheaace_mps_pstr_space_structure pstr_space_enc, const WORD32 core_coder_delay, WORD32 aot) { IA_ERRORCODE error = IA_NO_ERROR; WORD32 i; memset(&pstr_space_enc->pstr_delay->delay_config, 0, sizeof(pstr_space_enc->pstr_delay->delay_config)); pstr_space_enc->core_coder_delay = core_coder_delay; pstr_space_enc->pstr_delay->delay_config.num_qmf_len = pstr_space_enc->num_qmf_bands; pstr_space_enc->pstr_delay->delay_config.num_frame_len = pstr_space_enc->n_frame_length; pstr_space_enc->pstr_delay->delay_config.num_core_coder_delay = core_coder_delay; pstr_space_enc->pstr_delay->delay_config.num_sac_stream_mux_delay = pstr_space_enc->time_alignment; pstr_space_enc->pstr_delay->delay_config.b_dmx_align = 0; pstr_space_enc->pstr_delay->delay_config.b_minimize_delay = 1; ixheaace_mps_212_delay_sub_calculate_buffer_delays(pstr_space_enc->pstr_delay); pstr_space_enc->n_bitstream_delay_buffer = pstr_space_enc->pstr_delay->num_bitstream_frame_buffer_size; pstr_space_enc->n_output_buffer_delay = pstr_space_enc->pstr_delay->num_output_audio_buffer; pstr_space_enc->n_surround_analysis_buffer_delay = pstr_space_enc->pstr_delay->num_surround_analysis_buffer; pstr_space_enc->n_bitstream_buffer_read = 0; pstr_space_enc->n_bitstream_buffer_write = pstr_space_enc->n_bitstream_delay_buffer - 1; pstr_space_enc->num_discard_out_frames = pstr_space_enc->pstr_delay->num_discard_out_frames; pstr_space_enc->n_input_delay = pstr_space_enc->pstr_delay->num_dmx_align_buffer; pstr_space_enc->independency_count = 0; pstr_space_enc->independency_flag = 1; for (i = 0; i < pstr_space_enc->n_bitstream_delay_buffer - 1; i++) { ixheaace_mps_spatial_frame *pstr_frame_data = NULL; pstr_frame_data = &pstr_space_enc->pstr_bitstream_formatter->frame; pstr_frame_data->bs_independency_flag = 1; pstr_frame_data->framing_info.num_param_sets = 1; pstr_frame_data->framing_info.bs_framing_type = 0; error = ixheaace_mps_212_write_spatial_frame( pstr_space_enc->bit_stream_delay_buffer[i], MAX_MPEGS_BYTES, &pstr_space_enc->pn_output_bits[i], pstr_space_enc->pstr_bitstream_formatter, aot); if (error) { return error; } } if ((pstr_space_enc->n_input_delay > MAX_DELAY_INPUT) || (pstr_space_enc->n_output_buffer_delay > MAX_DELAY_OUTPUT) || (pstr_space_enc->n_surround_analysis_buffer_delay > MAX_DELAY_SURROUND_ANALYSIS) || (pstr_space_enc->n_bitstream_delay_buffer > MAX_BITSTREAM_DELAY)) { return IA_EXHEAACE_INIT_FATAL_MPS_INIT_FAILED; } return error; } static IA_ERRORCODE ixheaace_mps_212_fill_spatial_specific_config( const ixheaace_mps_pstr_space_structure pstr_space_enc, ixheaace_mps_spatial_specific_config *const pstr_h_ssc) { IA_ERRORCODE error = IA_NO_ERROR; ixheaace_mps_space_tree_description space_tree_description; WORD32 i; space_tree_description = pstr_space_enc->pstr_space_tree->descr; memset(pstr_h_ssc, 0, sizeof(ixheaace_mps_spatial_specific_config)); pstr_h_ssc->num_bands = pstr_space_enc->space_tree_setup.num_param_bands; pstr_h_ssc->tree_description.num_ott_boxes = space_tree_description.num_ott_boxes; pstr_h_ssc->tree_description.num_in_chan = space_tree_description.num_in_channels; pstr_h_ssc->tree_description.num_out_chan = space_tree_description.num_out_channels; for (i = 0; i < IXHEAACE_MPS_MAX_NUM_BOXES; i++) { pstr_h_ssc->ott_config[i].bs_ott_bands = pstr_h_ssc->num_bands; } pstr_h_ssc->bs_tree_config = IXHEAACE_MPS_TREE_212; pstr_h_ssc->bs_sampling_frequency = pstr_space_enc->num_sample_rate; pstr_h_ssc->bs_frame_length = pstr_space_enc->num_frame_time_slots - 1; pstr_h_ssc->bs_decorr_config = IXHEAACE_MPS_DECORR_QMFSPLIT0; pstr_h_ssc->bs_quant_mode = pstr_space_enc->quant_mode; if (pstr_space_enc->pstr_static_gain->fixed_gain_dmx > IXHEAACE_MPS_MAX_FIXED_GAIN_DMX) { pstr_h_ssc->bs_fixed_gain_dmx = IXHEAACE_MPS_FIXED_GAIN_DMX_INVALID; } else { pstr_h_ssc->bs_fixed_gain_dmx = pstr_space_enc->pstr_static_gain->fixed_gain_dmx; } pstr_h_ssc->bs_env_quant_mode = 0; return error; } static IA_ERRORCODE ixheaace_mps_212_fill_space_tree_setup( const ixheaace_mps_pstr_space_structure pstr_space_enc, ixheaace_mps_space_tree_setup *const ptr_space_tree_setup) { IA_ERRORCODE error = IA_NO_ERROR; ptr_space_tree_setup->num_param_bands = pstr_space_enc->num_param_bands; ptr_space_tree_setup->use_coarse_quant_tto_cld_flag = pstr_space_enc->use_coarse_quant_cld; ptr_space_tree_setup->use_coarse_quant_tto_icc_flag = pstr_space_enc->use_coarse_quant_icc; ptr_space_tree_setup->quant_mode = pstr_space_enc->quant_mode; ptr_space_tree_setup->num_hybrid_bands_max = pstr_space_enc->num_hybrid_bands; ptr_space_tree_setup->num_channels_in_max = 2; return error; } static VOID ixheaace_mps_212_get_info(const ixheaace_mps_pstr_space_structure pstr_space_enc, ixheaace_mps_space_info *const pstr_space_info) { pstr_space_info->num_sample_rate = pstr_space_enc->num_sample_rate; pstr_space_info->num_samples_frame = pstr_space_enc->n_frame_length; pstr_space_info->num_total_input_channels = pstr_space_enc->n_input_channels; pstr_space_info->dmx_delay = pstr_space_enc->pstr_delay->num_info_dmx_delay; pstr_space_info->codec_delay = pstr_space_enc->pstr_delay->num_info_codec_delay; pstr_space_info->decoder_delay = pstr_space_enc->pstr_delay->num_info_decoder_delay; pstr_space_info->pay_load_delay = pstr_space_enc->pstr_delay->num_bitstream_frame_buffer_size - 1; pstr_space_info->num_discard_out_frames = pstr_space_enc->num_discard_out_frames; pstr_space_info->p_ssc_buf = &pstr_space_enc->ssc_buf; } static VOID ixheaace_mps_212_duplicate_parameter_set( const ixheaace_mps_spatial_frame *const pstr_spatial_frame_from, const WORD32 set_from, ixheaace_mps_spatial_frame *const pstr_spatial_frame_to, const WORD32 set_to) { WORD32 box; for (box = 0; box < IXHEAACE_MPS_MAX_NUM_BOXES; box++) { memcpy(pstr_spatial_frame_to->ott_data.cld[box][set_to], pstr_spatial_frame_from->ott_data.cld[box][set_from], sizeof(pstr_spatial_frame_from->ott_data.cld[0][0])); pstr_spatial_frame_to->cld_lossless_data.bs_xxx_data_mode[box][set_to] = pstr_spatial_frame_from->cld_lossless_data.bs_xxx_data_mode[box][set_from]; pstr_spatial_frame_to->cld_lossless_data.bs_data_pair[box][set_to] = pstr_spatial_frame_from->cld_lossless_data.bs_data_pair[box][set_from]; pstr_spatial_frame_to->cld_lossless_data.bs_quant_coarse_xxx[box][set_to] = pstr_spatial_frame_from->cld_lossless_data.bs_quant_coarse_xxx[box][set_from]; pstr_spatial_frame_to->cld_lossless_data.bs_freq_res_stride_xxx[box][set_to] = pstr_spatial_frame_from->cld_lossless_data.bs_freq_res_stride_xxx[box][set_from]; memcpy(pstr_spatial_frame_to->ott_data.icc[box][set_to], pstr_spatial_frame_from->ott_data.icc[box][set_from], sizeof(pstr_spatial_frame_from->ott_data.icc[0][0])); pstr_spatial_frame_to->icc_lossless_data.bs_xxx_data_mode[box][set_to] = pstr_spatial_frame_from->icc_lossless_data.bs_xxx_data_mode[box][set_from]; pstr_spatial_frame_to->icc_lossless_data.bs_data_pair[box][set_to] = pstr_spatial_frame_from->icc_lossless_data.bs_data_pair[box][set_from]; pstr_spatial_frame_to->icc_lossless_data.bs_quant_coarse_xxx[box][set_to] = pstr_spatial_frame_from->icc_lossless_data.bs_quant_coarse_xxx[box][set_from]; pstr_spatial_frame_to->icc_lossless_data.bs_freq_res_stride_xxx[box][set_to] = pstr_spatial_frame_from->icc_lossless_data.bs_freq_res_stride_xxx[box][set_from]; } } static IA_ERRORCODE ixheaace_mps_212_encode( const ixheaace_mps_pstr_space_structure pstr_space_enc, const ixheaace_mps_buf_descr *ptr_in_buf_desc, const ixheaace_mps_buf_descr *ptr_out_buf_desc, const ixheaace_mps_in_args *pstr_in_args, ixheaace_mps_out_args *pstr_out_args, WORD32 aot, WORD8 *ptr_scratch) { IA_ERRORCODE error = IA_NO_ERROR; WORD32 num_output_samples; WORD32 i, ch, ps, win_cnt, ts, slot; WORD32 curr_trans_pos = -1; WORD32 num_ch_in; WORD32 num_ch_in_with_dmx; WORD32 num_ch_out; WORD32 num_samples_per_channel; WORD32 num_output_samples_max; WORD32 num_frame_time_slots; WORD32 num_frame_time_slots_reduction; ixheaace_mps_spatial_frame *pstr_frame_data = NULL; UWORD8 *ptr_bitstream_delay_buffer; const FLOAT32 *ptr_input_samples = (const FLOAT32 *)ptr_in_buf_desc->pp_base[IXHEAACE_MPS_INPUT_BUFFER_IDX]; FLOAT32 *const ptr_output_samples = (FLOAT32 *)ptr_out_buf_desc->pp_base[IXHEAACE_MPS_OUTUT_BUFFER_IDX]; const WORD32 num_output_samples_buffer_size = ptr_out_buf_desc->p_buf_size[IXHEAACE_MPS_OUTUT_BUFFER_IDX] / ptr_out_buf_desc->p_ele_size[IXHEAACE_MPS_OUTUT_BUFFER_IDX]; num_ch_in = pstr_space_enc->n_input_channels; num_ch_in_with_dmx = num_ch_in; num_ch_out = pstr_space_enc->n_output_channels; num_samples_per_channel = pstr_in_args->num_input_samples / num_ch_in_with_dmx; num_output_samples_max = num_samples_per_channel * num_ch_out; num_frame_time_slots = pstr_space_enc->num_frame_time_slots; num_frame_time_slots_reduction = pstr_space_enc->num_frame_time_slots >> 1; if ((0 != pstr_in_args->num_input_samples % num_ch_in_with_dmx)) { return IA_EXHEAACE_CONFIG_NONFATAL_MPS_INVALID_CONFIG; } pstr_frame_data = &pstr_space_enc->pstr_bitstream_formatter->frame; if (aot != AOT_USAC) { if (pstr_space_enc->num_discard_out_frames > 0) { pstr_space_enc->independency_count = 0; pstr_space_enc->independency_flag = 1; } else { pstr_space_enc->independency_flag = (pstr_space_enc->independency_count == 0) ? 1 : 0; if (pstr_space_enc->independency_factor > 0) { pstr_space_enc->independency_count++; pstr_space_enc->independency_count = pstr_space_enc->independency_count % ((WORD32)pstr_space_enc->independency_factor); } else { pstr_space_enc->independency_count = -1; } } } error = ixheaace_mps_212_feed_de_inter_pre_scale( pstr_space_enc, ptr_input_samples, ptr_output_samples, pstr_in_args->num_input_samples, pstr_in_args->is_input_inter_leaved, pstr_in_args->input_buffer_size_per_channel, &pstr_out_args->num_samples_consumed); if (error) { return error; } if (pstr_space_enc->n_samples_next != pstr_space_enc->n_samples_valid) { return IA_EXHEAACE_CONFIG_NONFATAL_MPS_INVALID_CONFIG; } for (ch = 0; ch < num_ch_in; ch++) { for (slot = 0; slot < num_frame_time_slots; slot++) { ixheaace_cmplx_str *pstr_cmplx_data; pstr_cmplx_data = pstr_space_enc ->cmplx_hybrid_in[ch][pstr_space_enc->n_update_hybrid_position_time_slots + num_frame_time_slots - num_frame_time_slots_reduction + slot]; memset(pstr_cmplx_data, 0, 2 * pstr_space_enc->num_hybrid_bands * sizeof(WORD32)); } } for (ch = 0; ch < num_ch_in; ch++) { FLOAT32 qmf_in_real[MAX_QMF_BANDS]; FLOAT32 qmf_in_imag[MAX_QMF_BANDS]; FLOAT32 p_work_buffer[MAX_QMF_BANDS << 1]; FLOAT32 *ptr_pre_gain = pstr_space_enc->pstr_static_gain->pre_gain; for (ts = 0; ts < num_frame_time_slots; ts++) { FLOAT32 *ptr_spec_real; FLOAT32 *ptr_spec_imag; FLOAT32 *ptr_time_in = &pstr_space_enc->time_signal_in[ch][(ts * pstr_space_enc->num_qmf_bands)]; ixheaace_mps_212_apply_dc_filter(pstr_space_enc->pstr_dc_filter[ch], ptr_time_in, ptr_time_in, pstr_space_enc->num_qmf_bands); error = ixheaace_mps_212_qmf_analysis_filtering_slot(pstr_space_enc->pstr_qmf_filter_in[ch], qmf_in_real, qmf_in_imag, ptr_time_in, 1, p_work_buffer, ptr_scratch); if (error != IA_NO_ERROR) { return error; } ptr_spec_real = qmf_in_real; ptr_spec_imag = qmf_in_imag; if (1.0f != ptr_pre_gain[ch]) { for (i = 0; i < pstr_space_enc->num_hybrid_bands; i++) { pstr_space_enc ->cmplx_hybrid_in[ch][pstr_space_enc->n_analysis_lookahead_time_slots + ts][i] .re = ptr_spec_real[i] * ptr_pre_gain[ch]; pstr_space_enc ->cmplx_hybrid_in[ch][pstr_space_enc->n_analysis_lookahead_time_slots + ts][i] .im = ptr_spec_imag[i] * ptr_pre_gain[ch]; } } else { for (i = 0; i < pstr_space_enc->num_hybrid_bands; i++) { pstr_space_enc ->cmplx_hybrid_in[ch][pstr_space_enc->n_analysis_lookahead_time_slots + ts][i] .re = ptr_spec_real[i]; pstr_space_enc ->cmplx_hybrid_in[ch][pstr_space_enc->n_analysis_lookahead_time_slots + ts][i] .im = ptr_spec_imag[i]; } } } } for (ch = 0; ch < num_ch_in; ch++) { for (slot = 0; slot < (WORD32)(pstr_space_enc->n_update_hybrid_position_time_slots + num_frame_time_slots - num_frame_time_slots_reduction); slot++) { memmove(pstr_space_enc->cmplx_hybrid_in[ch][slot], pstr_space_enc->cmplx_hybrid_in_static[ch][slot], sizeof(ixheaace_cmplx_str) * pstr_space_enc->num_hybrid_bands); } for (slot = 0; slot < (WORD32)(pstr_space_enc->n_update_hybrid_position_time_slots + num_frame_time_slots - num_frame_time_slots_reduction); slot++) { memmove(pstr_space_enc->cmplx_hybrid_in_static[ch][slot], pstr_space_enc->cmplx_hybrid_in[ch][num_frame_time_slots + slot], sizeof(ixheaace_cmplx_str) * pstr_space_enc->num_hybrid_bands); } error = ixheaace_mps_212_onset_detect_apply( pstr_space_enc->pstr_onset_detect[ch], num_frame_time_slots, &pstr_space_enc->cmplx_hybrid_in[ch][pstr_space_enc->n_analysis_lookahead_time_slots], pstr_space_enc->tr_prev_pos[1], pstr_space_enc->pp_tr_curr_pos[ch]); if (error) { return error; } if (pstr_space_enc->use_frame_keep == 0) { pstr_space_enc->pp_tr_curr_pos[ch][0] = -1; } if ((pstr_space_enc->pp_tr_curr_pos[ch][0] >= 0) && ((curr_trans_pos < 0) || (pstr_space_enc->pp_tr_curr_pos[ch][0] < curr_trans_pos))) { curr_trans_pos = pstr_space_enc->pp_tr_curr_pos[ch][0]; } } if (pstr_space_enc->use_frame_keep == 1) { if ((curr_trans_pos != -1) || (pstr_space_enc->independency_flag == 1)) { pstr_space_enc->avoid_keep = NUM_KEEP_WINDOWS; curr_trans_pos = -1; } } pstr_space_enc->tr_prev_pos[0] = MAX(-1, pstr_space_enc->tr_prev_pos[1] - num_frame_time_slots); pstr_space_enc->tr_prev_pos[1] = curr_trans_pos; for (ch = 0; ch < num_ch_in; ch++) { error = ixheaace_mps_212_onset_detect_update(pstr_space_enc->pstr_onset_detect[ch], num_frame_time_slots); if (error) { return error; } } ixheaace_mps_212_frame_window_get_window( pstr_space_enc->h_frame_window, pstr_space_enc->tr_prev_pos, num_frame_time_slots, &pstr_frame_data->framing_info, pstr_space_enc->ptr_frame_window_ana, &pstr_space_enc->frame_win_list, pstr_space_enc->avoid_keep); for (ps = 0, win_cnt = 0; ps < pstr_space_enc->frame_win_list.win_list_cnt; ++ps) { if (pstr_space_enc->frame_win_list.dat[ps].hold == IXHEAACE_MPS_FRAME_WINDOWING_HOLD) { ixheaace_mps_212_duplicate_parameter_set(&pstr_space_enc->save_frame, 0, pstr_frame_data, ps); } else { WORD32 num_analysis_length_time_slots, analysis_start_time_slot; FLOAT32 *ptr_frame_window_ana; num_analysis_length_time_slots = ixheaace_mps_212_get_analysis_length_time_slots( pstr_space_enc->ptr_frame_window_ana[win_cnt], pstr_space_enc->num_analysis_length_time_slots); analysis_start_time_slot = ixheaace_mps_212_get_analysis_start_time_slot( pstr_space_enc->ptr_frame_window_ana[win_cnt], pstr_space_enc->num_analysis_length_time_slots); ptr_frame_window_ana = pstr_space_enc->ptr_frame_window_ana[win_cnt]; error = ixheaace_mps_212_space_tree_apply( pstr_space_enc->pstr_space_tree, ps, num_ch_in, num_analysis_length_time_slots, analysis_start_time_slot, pstr_space_enc->num_hybrid_bands, ptr_frame_window_ana, pstr_space_enc->cmplx_hybrid_in, pstr_space_enc->cmplx_hybrid_in, pstr_frame_data, pstr_space_enc->avoid_keep); if (error) { return error; } ixheaace_mps_212_duplicate_parameter_set(pstr_frame_data, ps, &pstr_space_enc->save_frame, 0); ++win_cnt; } if (pstr_space_enc->avoid_keep > 0) { pstr_space_enc->avoid_keep--; } } memset(&pstr_frame_data->smg_data, 0, sizeof(pstr_frame_data->smg_data)); ptr_bitstream_delay_buffer = (UWORD8 *)ptr_out_buf_desc->pp_base[IXHEAACE_MPS_BITSTREAM_BUFFER_IDX]; pstr_frame_data->bs_independency_flag = pstr_space_enc->independency_flag; error = ixheaace_mps_212_write_spatial_frame( ptr_bitstream_delay_buffer, MAX_MPEGS_BYTES, &pstr_space_enc->pn_output_bits[pstr_space_enc->n_bitstream_buffer_write], pstr_space_enc->pstr_bitstream_formatter, aot); if (error) { return error; } if ((pstr_space_enc->num_discard_out_frames == 0) && (IXHEAACE_MPS_BITSTREAM_BUFFER_IDX != -1)) { const WORD32 idx = IXHEAACE_MPS_BITSTREAM_BUFFER_IDX; const WORD32 out_bits = pstr_space_enc->pn_output_bits[pstr_space_enc->n_bitstream_buffer_read]; if (((out_bits + 7) / 8) > (WORD32)(ptr_out_buf_desc->p_buf_size[idx] / ptr_out_buf_desc->p_ele_size[idx])) { pstr_out_args->num_output_bits = 0; return IA_EXHEAACE_EXE_NONFATAL_MPS_ENCODE_ERROR; } pstr_out_args->num_output_bits = out_bits; } else { pstr_out_args->num_output_bits = 0; } pstr_space_enc->n_bitstream_buffer_read = (pstr_space_enc->n_bitstream_buffer_read + 1) % pstr_space_enc->n_bitstream_delay_buffer; pstr_space_enc->n_bitstream_buffer_write = (pstr_space_enc->n_bitstream_buffer_write + 1) % pstr_space_enc->n_bitstream_delay_buffer; num_output_samples = (pstr_space_enc->num_discard_out_frames == 0) ? (num_output_samples_max) : 0; if (num_output_samples > num_output_samples_buffer_size) { return IA_EXHEAACE_CONFIG_NONFATAL_MPS_INVALID_CONFIG; } pstr_out_args->num_output_samples = num_output_samples; if (pstr_space_enc->num_discard_out_frames > 0) { pstr_space_enc->num_discard_out_frames--; } pstr_space_enc->n_samples_valid = 0; return error; } static IA_ERRORCODE ixheaace_mps_212_init(ixheaace_mps_pstr_space_structure pstr_space_enc, const WORD32 dmx_delay, WORD32 aot) { IA_ERRORCODE error = IA_NO_ERROR; WORD32 ch; WORD32 num_ch_in_arb_dmx; ixheaace_mps_space_tree_description space_tree_description; ixheaace_mps_onset_detect_config onset_detect_config; ixheaace_mps_frame_win_config frame_window_config; error = ixheaace_mps_212_configure(pstr_space_enc, &pstr_space_enc->user); if (error) { return error; } pstr_space_enc->b_enc_mode_212_only = pstr_space_enc->setup->b_enc_mode_212; if (pstr_space_enc->num_frame_time_slots < 1) { return IA_EXHEAACE_CONFIG_NONFATAL_MPS_INVALID_CONFIG; } pstr_space_enc->n_frame_length = pstr_space_enc->num_qmf_bands * pstr_space_enc->num_frame_time_slots; if (pstr_space_enc->use_frame_keep == 1) { pstr_space_enc->num_analysis_length_time_slots = 3 * pstr_space_enc->num_frame_time_slots; pstr_space_enc->n_update_hybrid_position_time_slots = pstr_space_enc->num_frame_time_slots; } else { pstr_space_enc->num_analysis_length_time_slots = 2 * pstr_space_enc->num_frame_time_slots; pstr_space_enc->n_update_hybrid_position_time_slots = 0; } pstr_space_enc->n_analysis_lookahead_time_slots = pstr_space_enc->num_analysis_length_time_slots - 3 * pstr_space_enc->num_frame_time_slots / 2; ixheaace_mps_212_calc_parameter_band_to_hybrid_band_offset( pstr_space_enc->num_hybrid_bands, pstr_space_enc->ptr_parameter_band_2_hybrid_band_offset, aot); error = ixheaace_mps_212_fill_space_tree_setup(pstr_space_enc, &pstr_space_enc->space_tree_setup); if (error) { return error; } error = ixheaace_mps_212_space_tree_init( pstr_space_enc->pstr_space_tree, &pstr_space_enc->space_tree_setup, pstr_space_enc->ptr_parameter_band_2_hybrid_band_offset, pstr_space_enc->use_frame_keep, aot); if (error) { return error; } space_tree_description = pstr_space_enc->pstr_space_tree->descr; pstr_space_enc->n_input_channels = space_tree_description.num_out_channels; pstr_space_enc->n_output_channels = space_tree_description.num_in_channels; frame_window_config.num_time_slots_max = pstr_space_enc->num_frame_time_slots; frame_window_config.frame_keep_flag = pstr_space_enc->use_frame_keep; onset_detect_config.max_time_slots = pstr_space_enc->num_frame_time_slots; onset_detect_config.lower_bound_onset_detection = ((2 * 1725 * pstr_space_enc->num_qmf_bands) / pstr_space_enc->num_sample_rate); onset_detect_config.upper_bound_onset_detection = pstr_space_enc->num_hybrid_bands; num_ch_in_arb_dmx = 0; for (ch = 0; ch < pstr_space_enc->n_input_channels; ch++) { ixheaace_mps_212_qmf_init_filter_bank( pstr_space_enc->pstr_qmf_filter_in[ch], pstr_space_enc->pstr_qmf_filter_in[ch]->ptr_filter_states, 1, pstr_space_enc->num_qmf_bands, pstr_space_enc->num_qmf_bands, pstr_space_enc->num_qmf_bands); if (error) { return error; } ixheaace_mps_212_init_dc_filter(pstr_space_enc->pstr_dc_filter[ch], pstr_space_enc->num_sample_rate); error = ixheaace_mps_212_onset_detect_init(pstr_space_enc->pstr_onset_detect[ch], &onset_detect_config, 1); if (error) { return error; } } error = ixheaace_mps_212_frame_window_init(pstr_space_enc->h_frame_window, &frame_window_config); if (error) { return error; } error = ixheaace_mps_212_static_gain_init(pstr_space_enc->pstr_static_gain, pstr_space_enc->pstr_static_gain_config); if (error) { return error; } error = ixheaace_mps_212_init_enhanced_time_domain_dmx( pstr_space_enc->pstr_enhanced_time_dmx, pstr_space_enc->pstr_static_gain->pre_gain, pstr_space_enc->pstr_static_gain->post_gain, pstr_space_enc->n_frame_length); if (error) { return error; } memset(pstr_space_enc->pstr_bitstream_formatter, 0, sizeof(ixheaace_mps_spatial_frame)); pstr_space_enc->pstr_bitstream_formatter->frame.bs_independency_flag = 1; pstr_space_enc->pstr_bitstream_formatter->frame.framing_info.num_param_sets = 1; error = ixheaace_mps_212_fill_spatial_specific_config( pstr_space_enc, &pstr_space_enc->pstr_bitstream_formatter->spatial_specific_config); if (error) { return error; } error = ixheaace_mps_212_write_spatial_specific_config( &pstr_space_enc->pstr_bitstream_formatter->spatial_specific_config, pstr_space_enc->ssc_buf.ptr_ssc, MAX_SSC_BYTES, &pstr_space_enc->ssc_buf.num_ssc_size_bits, aot); if (error) { return error; } error = ixheaace_mps_212_init_delay_compensation(pstr_space_enc, dmx_delay, aot); if (error) { return error; } pstr_space_enc->n_samples_next = pstr_space_enc->n_frame_length * (pstr_space_enc->n_input_channels + num_ch_in_arb_dmx); pstr_space_enc->n_samples_valid = 0; return error; } static VOID ixheaace_mps_open(ixheaace_mps_pstr_space_structure *pstr_space_enc_structure, ixheaace_mps_212_memory_struct *pstr_mps_memory) { WORD32 ch; WORD32 param; ixheaace_mps_pstr_space_structure pstr_space_enc = NULL; pstr_space_enc = &pstr_mps_memory->mp4_space_encoder_instance; if (NULL != pstr_space_enc) { memset(pstr_space_enc, 0, sizeof(struct ixheaace_mps_space_structure)); } pstr_space_enc->setup = &pstr_mps_memory->setup; pstr_space_enc->setup->max_sampling_rate = MAX_SAMPLING_RATE; pstr_space_enc->setup->max_frame_time_slots = MAX_FRAME_TIME_SLOT; pstr_space_enc->setup->max_analysis_length_time_slots = 3 * pstr_space_enc->setup->max_frame_time_slots; pstr_space_enc->setup->max_qmf_bands = ixheaace_mps_212_space_get_num_qmf_bands(pstr_space_enc->setup->max_sampling_rate); pstr_space_enc->setup->max_hybrid_bands = pstr_space_enc->setup->max_qmf_bands; pstr_space_enc->setup->max_frame_length = pstr_space_enc->setup->max_qmf_bands * pstr_space_enc->setup->max_frame_time_slots; pstr_space_enc->setup->max_ch_in = 2; pstr_space_enc->setup->max_ch_out = 1; pstr_space_enc->setup->max_ch_tot_out = pstr_space_enc->setup->max_ch_out; pstr_space_enc->setup->b_enc_mode_212 = 1; pstr_space_enc->setup->max_hybrid_in_static_slots = 24; pstr_space_enc->pstr_static_gain_config = &pstr_mps_memory->static_gain_config; pstr_space_enc->pstr_enhanced_time_dmx = &pstr_mps_memory->enhanced_time_dmx; pstr_space_enc->pstr_enhanced_time_dmx->sinus_window = pstr_mps_memory->sinus_window_flt; pstr_space_enc->ptr_parameter_band_2_hybrid_band_offset = pstr_mps_memory->parameter_band_2_hybrid_band_offset; ixheaace_mps_212_space_tree_open(&pstr_space_enc->pstr_space_tree, pstr_mps_memory); pstr_space_enc->pstr_qmf_filter_in = pstr_mps_memory->pstr_qmf_filter_bank; for (ch = 0; ch < pstr_space_enc->setup->max_ch_in; ch++) { pstr_space_enc->pstr_qmf_filter_in[ch] = &pstr_mps_memory->qmf_filter_bank[ch]; pstr_space_enc->pstr_qmf_filter_in[ch]->ptr_filter_states = &pstr_mps_memory->ptr_filter_states[ch]; pstr_space_enc->pstr_dc_filter[ch] = &pstr_mps_memory->dc_filter[ch]; pstr_space_enc->pstr_onset_detect[ch] = &pstr_mps_memory->onset_detect[ch]; pstr_space_enc->pstr_onset_detect[ch]->p_energy_hist = &pstr_mps_memory->energy_hist_float[ch][0]; } pstr_space_enc->h_frame_window = &pstr_mps_memory->frame_window; pstr_space_enc->pstr_static_gain = &pstr_mps_memory->static_gain; pstr_space_enc->pstr_bitstream_formatter = &pstr_mps_memory->bitstream; pstr_space_enc->ssc_buf.ptr_ssc = pstr_mps_memory->ssc; pstr_space_enc->pstr_delay = &pstr_mps_memory->delay; pstr_space_enc->pn_output_bits = pstr_mps_memory->n_output_bits; for (param = 0; param < MAX_NUM_PARAMS; param++) { pstr_space_enc->ptr_frame_window_ana[param] = &pstr_mps_memory->frame_window_ana_flt[param][0]; } pstr_space_enc->pstr_enhanced_time_dmx->max_frame_length = pstr_space_enc->setup->max_frame_length; for (ch = 0; ch < pstr_space_enc->setup->max_ch_in; ch++) { pstr_space_enc->pstr_onset_detect[ch]->max_time_slots = pstr_space_enc->setup->max_frame_time_slots; pstr_space_enc->pstr_onset_detect[ch]->min_trans_dist = 8; pstr_space_enc->pstr_onset_detect[ch]->avg_energy_dist = 16; pstr_space_enc->pstr_onset_detect[ch]->avg_energy_dist_scale = 4; } pstr_space_enc->pstr_static_gain_config->fixed_gain_dmx = IXHEAACE_MPS_DMX_GAIN_DEFAULT; pstr_space_enc->pstr_static_gain_config->pre_gain_factor_db = 0; if (NULL != pstr_space_enc_structure) { *pstr_space_enc_structure = pstr_space_enc; } } static WORD32 ixheaace_mps_212_get_closest_bit_rate(const WORD32 audio_object_type, const UWORD32 sampling_rate, const UWORD32 sbr_ratio, UWORD32 bitrate) { UWORD32 idx; WORD32 target_bitrate = -1; for (idx = 0; idx < sizeof(mps_config_tab) / sizeof(ixheaace_mps_config_table); idx++) { if ((mps_config_tab[idx].sampling_rate == sampling_rate) && (mps_config_tab[idx].audio_object_type == audio_object_type) && (mps_config_tab[idx].sbr_ratio == sbr_ratio)) { target_bitrate = MIN(MAX(bitrate, mps_config_tab[idx].bitrate_min), mps_config_tab[idx].bitrate_max); } } return target_bitrate; } static WORD32 ixheaace_mps_212_write_spatial_specific_config_data( ixheaace_mps_pstr_struct pstr_mps_enc, ixheaace_bit_buf_handle pstr_bit_buf) { WORD32 idx; WORD32 ssc_bits = 0; WORD32 written_bits = 0; ixheaace_mps_space_info pstr_space_encoder_info; ixheaace_mps_212_get_info(pstr_mps_enc->ptr_sac_encoder, &pstr_space_encoder_info); for (idx = 0; idxnum_ssc_size_bits>> 3; idx++) { ixheaace_write_bits(pstr_bit_buf, pstr_space_encoder_info.p_ssc_buf->ptr_ssc[idx], 8); written_bits += 8; } ixheaace_write_bits( pstr_bit_buf, pstr_space_encoder_info.p_ssc_buf->ptr_ssc[idx], (UWORD8)(pstr_space_encoder_info.p_ssc_buf->num_ssc_size_bits - written_bits)); ssc_bits = pstr_space_encoder_info.p_ssc_buf->num_ssc_size_bits; return ssc_bits; } VOID ixheaace_mps_212_open(VOID **pstr_handle_mps, ixheaace_mps_212_memory_struct *pstr_mps_memory) { ixheaace_mps_pstr_struct pstr_mps_enc = NULL; pstr_mps_enc = &pstr_mps_memory->mps_encoder_instance; memset(pstr_mps_enc, 0, sizeof(ixheaace_mps_struct)); ixheaace_mps_open(&pstr_mps_enc->ptr_sac_encoder, pstr_mps_memory); *pstr_handle_mps = pstr_mps_enc; } VOID ixheaace_mps_212_close(VOID **pstr_handle_mps) { ixheaace_mps_pstr_struct *pstr_mps_enc = (ixheaace_mps_pstr_struct *)pstr_handle_mps; if (*pstr_mps_enc != NULL) { *pstr_mps_enc = NULL; } } IA_ERRORCODE ixheaace_mps_212_initialise(VOID *pstr_handle_mps, const WORD32 audio_object_type, const UWORD32 sampling_rate, WORD32 *ptr_bitrate, const UWORD32 sbr_ratio, const UWORD32 frame_length, const UWORD32 input_buffer_size_per_channel, const UWORD32 core_coder_delay, WORD8 *ptr_scratch) { IA_ERRORCODE error = IA_NO_ERROR; const UWORD32 fs_low = 27713; const UWORD32 fs_high = 55426; const UWORD32 no_inter_frame_coding = 0; UWORD32 num_time_slots = 0, num_qmf_bands_ld = 0; ixheaace_mps_pstr_struct pstr_mps_enc = (ixheaace_mps_pstr_struct)pstr_handle_mps; switch (sbr_ratio) { case 1: if (!(sampling_rate < fs_low)) { return IA_EXHEAACE_INIT_FATAL_MPS_INIT_FAILED; } break; case 2: case 4: if (!((sampling_rate >= fs_low) && (sampling_rate < fs_high))) { return IA_EXHEAACE_INIT_FATAL_MPS_INIT_FAILED; } break; case 0: default:; } num_qmf_bands_ld = (sampling_rate < fs_low) ? 5 : ((sampling_rate > fs_high) ? 7 : 6); num_time_slots = frame_length >> num_qmf_bands_ld; *ptr_bitrate = ixheaace_mps_212_get_closest_bit_rate(audio_object_type, sampling_rate, sbr_ratio, *ptr_bitrate); pstr_mps_enc->ptr_sac_encoder->user.b_ld_mode = ((no_inter_frame_coding == 1) ? 1 : 2); pstr_mps_enc->ptr_sac_encoder->user.sample_rate = sampling_rate; pstr_mps_enc->ptr_sac_encoder->user.frame_time_slots = num_time_slots; if (audio_object_type == AOT_AAC_ELD) { pstr_mps_enc->ptr_sac_encoder->user.num_param_bands = IXHEAACE_MPS_SAC_BANDS_ld; pstr_mps_enc->ptr_sac_encoder->user.independency_factor = 20; } else { pstr_mps_enc->ptr_sac_encoder->user.num_param_bands = IXHEAACE_MPS_SAC_BANDS_usac; pstr_mps_enc->ptr_sac_encoder->user.independency_factor = 25; } pstr_mps_enc->ptr_sac_encoder->user.b_use_coarse_quant = 0; pstr_mps_enc->ptr_sac_encoder->user.quant_mode = IXHEAACE_MPS_QUANTMODE_FINE; pstr_mps_enc->ptr_sac_encoder->user.time_alignment = 0; pstr_mps_enc->audio_object_type = audio_object_type; error = ixheaace_mps_212_init(pstr_mps_enc->ptr_sac_encoder, core_coder_delay, audio_object_type); if (error) { return IA_EXHEAACE_INIT_FATAL_MPS_INIT_FAILED; } pstr_mps_enc->in_buf_desc.pp_base = (VOID **)&pstr_mps_enc->p_in_buffer; pstr_mps_enc->in_buf_desc.p_buf_size = pstr_mps_enc->p_in_buffer_size; pstr_mps_enc->in_buf_desc.p_ele_size = pstr_mps_enc->p_in_buffer_el_size; pstr_mps_enc->in_buf_desc.p_buf_type = pstr_mps_enc->p_in_buffer_type; pstr_mps_enc->in_buf_desc.num_bufs = 1; pstr_mps_enc->out_buf_desc.pp_base = (VOID **)&pstr_mps_enc->p_out_buffer; pstr_mps_enc->out_buf_desc.p_buf_size = pstr_mps_enc->p_out_buffer_size; pstr_mps_enc->out_buf_desc.p_ele_size = pstr_mps_enc->p_out_buffer_el_size; pstr_mps_enc->out_buf_desc.p_buf_type = pstr_mps_enc->p_out_buffer_type; pstr_mps_enc->out_buf_desc.num_bufs = 2; pstr_mps_enc->p_in_buffer[0] = NULL; pstr_mps_enc->p_in_buffer_size[0] = 0; pstr_mps_enc->p_in_buffer_el_size[0] = sizeof(FLOAT32); pstr_mps_enc->p_in_buffer_type[0] = IXHEAACE_MPS_INPUT_BUFFER_IDX; pstr_mps_enc->p_out_buffer[0] = NULL; pstr_mps_enc->p_out_buffer_size[0] = 0; pstr_mps_enc->p_out_buffer_el_size[0] = sizeof(FLOAT32); pstr_mps_enc->p_out_buffer_type[0] = IXHEAACE_MPS_OUTUT_BUFFER_IDX; pstr_mps_enc->p_out_buffer[1] = NULL; pstr_mps_enc->p_out_buffer_size[1] = 0; pstr_mps_enc->p_out_buffer_el_size[1] = sizeof(UWORD8); pstr_mps_enc->p_out_buffer_type[1] = IXHEAACE_MPS_BITSTREAM_BUFFER_IDX; pstr_mps_enc->in_args.is_input_inter_leaved = 0; pstr_mps_enc->in_args.input_buffer_size_per_channel = input_buffer_size_per_channel; pstr_mps_enc->ptr_scratch = ptr_scratch; return error; } IA_ERRORCODE ixheaace_mps_212_process(VOID *pstr_handle_mps, FLOAT32 *const ptr_audio_samples, const WORD32 num_audio_samples, ixheaace_mps_enc_ext_payload *pstr_mps_ext_payload) { IA_ERRORCODE error = IA_NO_ERROR; ixheaace_mps_pstr_struct pstr_mps_enc = (ixheaace_mps_pstr_struct)pstr_handle_mps; WORD32 aot = pstr_mps_enc->audio_object_type; WORD32 sac_header_flag = 0; WORD32 sac_out_buffer_offset = 0; if (aot == AOT_AAC_ELD) { pstr_mps_enc->sac_out_buffer[0] = (sac_header_flag == 0) ? 0x3 : 0x7; sac_out_buffer_offset += 1; } pstr_mps_enc->p_in_buffer[0] = (VOID *)ptr_audio_samples; pstr_mps_enc->in_args.num_input_samples = num_audio_samples; pstr_mps_enc->p_out_buffer[0] = (VOID *)ptr_audio_samples; pstr_mps_enc->p_out_buffer_size[0] = sizeof(FLOAT32) * ((WORD32)num_audio_samples) / 2; pstr_mps_enc->p_out_buffer[1] = (VOID *)&pstr_mps_enc->sac_out_buffer[sac_out_buffer_offset]; pstr_mps_enc->p_out_buffer_size[1] = sizeof(pstr_mps_enc->sac_out_buffer) - sac_out_buffer_offset; error = ixheaace_mps_212_encode(pstr_mps_enc->ptr_sac_encoder, &pstr_mps_enc->in_buf_desc, &pstr_mps_enc->out_buf_desc, &pstr_mps_enc->in_args, &pstr_mps_enc->out_args, aot, pstr_mps_enc->ptr_scratch); if (error) { return error; } pstr_mps_ext_payload->p_data = (UWORD8 *)pstr_mps_enc->sac_out_buffer; pstr_mps_ext_payload->data_size = pstr_mps_enc->out_args.num_output_bits; if (aot == AOT_AAC_ELD) { pstr_mps_ext_payload->data_size += 8 * (sac_out_buffer_offset - 1); } pstr_mps_ext_payload->data_type = IXHEAACE_MPS_EXT_LDSAC_DATA; pstr_mps_ext_payload->associated_ch_element = -1; return error; } WORD32 ixheaace_mps_212_get_spatial_specific_config(VOID *pstr_handle_mps, WORD8 *ptr_out_buffer, WORD32 buf_size, WORD32 aot) { ixheaace_bit_buf bit_buf; ixheaace_bit_buf_handle pstr_bit_buf = ia_enhaacplus_enc_create_bitbuffer(&bit_buf, (UWORD8 *)ptr_out_buffer, buf_size); ixheaace_mps_212_write_spatial_specific_config_data(pstr_handle_mps, pstr_bit_buf); if (aot == AOT_AAC_ELD) { ixheaace_byte_align_buffer(pstr_bit_buf); } return ia_enhaacplus_enc_get_bits_available(pstr_bit_buf); } WORD32 ixheaace_mps_515_scratch_size(VOID) { WORD32 size = 0; size += ((MAX_INPUT_CHANNELS * MAX_BUFFER_SIZE) * sizeof(FLOAT32)); size += ((MAX_OUTPUT_CHANNELS * MAX_BUFFER_SIZE) * sizeof(FLOAT32)); size += (((MAX_INPUT_CHANNELS * MAX_BUFFER_SIZE) + (2 * MAX_BUFFER_SIZE) + (2 * MAX_BUFFER_SIZE)) * sizeof(FLOAT32)); size += (((6 * MAX_TIME_SLOTS * NUM_QMF_BANDS) + (6 * MAX_TIME_SLOTS * NUM_QMF_BANDS) + (6 * MAX_TIME_SLOTS * NUM_QMF_BANDS) + (6 * MAX_TIME_SLOTS * NUM_QMF_BANDS) + (6 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS) + (6 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS)) * sizeof(FLOAT32)); size += (INPUT_LEN_DOWNSAMPLE * IXHEAACE_MAX_CH_IN_BS_ELE * UPSAMPLE_FAC * sizeof(FLOAT32)); size += (INPUT_LEN_DOWNSAMPLE * IXHEAACE_MAX_CH_IN_BS_ELE * UPSAMPLE_FAC * sizeof(FLOAT32)); size = IXHEAAC_GET_SIZE_ALIGNED(size, BYTE_ALIGN_8); return size; } IA_ERRORCODE ixheaace_mps_515_open(VOID **pstr_handle_mps, WORD32 sample_freq, WORD32 tree_config, ixheaace_bit_buf_handle pstr_bitstream, WORD32 *ptr_bits_written, ixheaace_mps_515_memory_struct *pstr_mps_memory, WORD32 flag_480) { WORD32 i; IA_ERRORCODE error = IA_NO_ERROR; ixheaace_mps_sac_specific_config *pstr_mps_specific_config; ixheaace_mps_sac_pstr_enc pstr_mps_enc = &pstr_mps_memory->spatial_enc_instance; ixheaace_mps_sac_pstr_qmf_ana_filter_bank pstr_qmf_ana_bank = &pstr_mps_enc->qmf_fltbank; ixheaace_mps_sac_pstr_qmf_synth_filter_bank pstr_qmf_synth_bank = &pstr_mps_enc->qmf_synth_fltbank; memset(pstr_mps_enc, 0, sizeof(ixheaace_mps_sac_enc)); pstr_mps_enc->tree_config = tree_config; switch (tree_config) { case 5151: case 5152: pstr_mps_enc->output_channels = 1; break; case 525: pstr_mps_enc->output_channels = 2; } if (flag_480) { pstr_mps_enc->time_slots = 15; } else { pstr_mps_enc->time_slots = 16; } pstr_mps_enc->frame_size = NUM_QMF_BANDS * pstr_mps_enc->time_slots; pstr_qmf_ana_bank->p_filter = ia_mps_enc_qmf_64_640; pstr_qmf_synth_bank->p_filter = ia_mps_enc_qmf_64_640; pstr_qmf_synth_bank->alt_sin_twiddle = sbr_alt_sin_twiddle; pstr_qmf_synth_bank->cos_twiddle = sbr_cos_twiddle; pstr_qmf_synth_bank->sin_twiddle = sbr_sin_twiddle; for (i = 0; i < 6; i++) { memset(&pstr_mps_enc->filterbank[i], 0, sizeof(ixheaace_mps_sac_sbr_encoder_ana_filter_bank)); memset(&pstr_mps_enc->hyb_state[i], 0, sizeof(ixheaace_mps_hyb_filter_state)); } pstr_mps_enc->bitstream_formatter = &pstr_mps_memory->bsf_memory_instance; pstr_mps_specific_config = &pstr_mps_enc->bitstream_formatter->spatial_specific_config; memset(pstr_mps_specific_config, 0, sizeof(ixheaace_mps_sac_specific_config)); pstr_mps_enc->bitstream_formatter->current_frame.bs_independency_flag_count = 0; pstr_mps_specific_config->bs_sampling_frequency = sample_freq; switch (tree_config) { case 5151: pstr_mps_specific_config->bs_tree_config = IXHEAACE_MPS_TREE_5151; pstr_mps_specific_config->ott_config[4].bs_ott_bands = 2; break; case 5152: pstr_mps_specific_config->bs_tree_config = IXHEAACE_MPS_TREE_5152; pstr_mps_specific_config->ott_config[2].bs_ott_bands = 2; break; case 525: pstr_mps_specific_config->bs_tree_config = IXHEAACE_MPS_TREE_525; pstr_mps_specific_config->ott_config[0].bs_ott_bands = 2; pstr_mps_specific_config->ttt_config->bs_ttt_bands_low = PARAMETER_BANDS; pstr_mps_specific_config->ttt_config->bs_ttt_mode_low = 5; } pstr_mps_specific_config->bs_frame_length = pstr_mps_enc->time_slots - 1; pstr_mps_specific_config->bs_freq_res = 2; pstr_mps_specific_config->bs_fixed_gain_sur = 2; pstr_mps_specific_config->bs_fixed_gain_lfe = 1; pstr_mps_specific_config->bs_fixed_gain_dmx = 0; error = ixheaace_mps_515_write_spatial_specific_config(pstr_bitstream, pstr_mps_enc->bitstream_formatter); *ptr_bits_written = ia_enhaacplus_enc_get_bits_available(pstr_bitstream); *pstr_handle_mps = pstr_mps_enc; return error; } IA_ERRORCODE ixheaace_mps_515_apply(ixheaace_mps_sac_enc *pstr_mps_enc, FLOAT32 *ptr_audio_input, FLOAT32 *ptr_audio_output, ixheaace_bit_buf_handle pstr_bitstream, VOID *ptr_scratch) { IA_ERRORCODE error = IA_NO_ERROR; FLOAT32 *pstr_scratch = (FLOAT32 *)ptr_scratch; FLOAT32 *in = (FLOAT32 *)pstr_scratch; memset(in, 0, sizeof(*in) * MAX_INPUT_CHANNELS * MAX_BUFFER_SIZE); pstr_scratch += MAX_INPUT_CHANNELS * MAX_BUFFER_SIZE; FLOAT32 *out = (FLOAT32 *)pstr_scratch; memset(out, 0, sizeof(*out) * 2 * MAX_BUFFER_SIZE); pstr_scratch += 2 * MAX_BUFFER_SIZE; FLOAT32 *out1 = (FLOAT32 *)pstr_scratch; memset(out1, 0, sizeof(*out1) * 2 * MAX_BUFFER_SIZE); pstr_scratch += 2 * MAX_BUFFER_SIZE; FLOAT32 *m_qmf_real = (FLOAT32 *)pstr_scratch; memset(m_qmf_real, 0, sizeof(*m_qmf_real) * 6 * MAX_TIME_SLOTS * NUM_QMF_BANDS); pstr_scratch += 6 * MAX_TIME_SLOTS * NUM_QMF_BANDS; FLOAT32 *m_qmf_imag = (FLOAT32 *)pstr_scratch; memset(m_qmf_imag, 0, sizeof(*m_qmf_imag) * 6 * MAX_TIME_SLOTS * NUM_QMF_BANDS); pstr_scratch += 6 * MAX_TIME_SLOTS * NUM_QMF_BANDS; FLOAT32 *m_hybrid_real = (FLOAT32 *)pstr_scratch; memset(m_hybrid_real, 0, sizeof(*m_hybrid_real) * 6 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS); pstr_scratch += 6 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS; FLOAT32 *m_hybrid_imag = (FLOAT32 *)pstr_scratch; memset(m_hybrid_imag, 0, sizeof(*m_hybrid_imag) * 6 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS); pstr_scratch += 6 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS; FLOAT32 *m_qmf_real_out = (FLOAT32 *)pstr_scratch; memset(m_qmf_real_out, 0, sizeof(*m_qmf_real_out) * 6 * MAX_TIME_SLOTS * NUM_QMF_BANDS); pstr_scratch += 6 * MAX_TIME_SLOTS * NUM_QMF_BANDS; FLOAT32 *m_qmf_imag_out = (FLOAT32 *)pstr_scratch; memset(m_qmf_imag_out, 0, sizeof(*m_qmf_imag_out) * 6 * MAX_TIME_SLOTS * NUM_QMF_BANDS); ixheaace_mps_sac_spatial_frame *pstr_frame_data; ixheaace_mps_sac_pstr_qmf_ana_filter_bank pstr_qmf_ana_bank = &pstr_mps_enc->qmf_fltbank; ixheaace_mps_sac_pstr_qmf_synth_filter_bank pstr_qmf_synth_bank = &pstr_mps_enc->qmf_synth_fltbank; WORD32 i, j, k, l; FLOAT32 p_pre_scale[6] = {1.f, 1.f, 1.f, 0.3162f, 0.7071f, 0.7071f}; for (i = 0; i < DELAY_COMPENSATION; i++) { for (j = 0; j < 6; j++) { pstr_mps_enc->in1[j][i] = pstr_mps_enc->in1[j][i + pstr_mps_enc->frame_size]; } } for (i = 0; i < pstr_mps_enc->frame_size; i++) { for (j = 0; j < 6; j++) { pstr_mps_enc->in1[j][i + DELAY_COMPENSATION] = ptr_audio_input[i * 6 + j] * p_pre_scale[j]; } } for (i = 0; i < pstr_mps_enc->frame_size; i++) { for (j = 0; j < 6; j++) { in[j * MAX_BUFFER_SIZE + i] = ptr_audio_input[i * 6 + j] * p_pre_scale[j]; } } for (i = 0; i < pstr_mps_enc->frame_size; i++) { if (pstr_mps_enc->output_channels == 1) out1[i] = in[i] + in[MAX_BUFFER_SIZE + i] + in[2 * MAX_BUFFER_SIZE + i] + in[3 * MAX_BUFFER_SIZE + i] + in[4 * MAX_BUFFER_SIZE + i] + in[5 * MAX_BUFFER_SIZE + i]; else { out1[i] = in[i] + 0.7071f * (in[2 * MAX_BUFFER_SIZE + i] + in[3 * MAX_BUFFER_SIZE + i]) + in[4 * MAX_BUFFER_SIZE + i]; out1[MAX_BUFFER_SIZE + i] = in[MAX_BUFFER_SIZE + i] + 0.7071f * (in[2 * MAX_BUFFER_SIZE + i] + in[3 * MAX_BUFFER_SIZE + i]) + in[5 * MAX_BUFFER_SIZE + i]; } } for (i = 0; i < pstr_mps_enc->frame_size; i++) { for (j = 0; j < 6; j++) { in[j * MAX_BUFFER_SIZE + i] = pstr_mps_enc->in1[j][i]; } } for (l = 0; l < pstr_mps_enc->time_slots; l++) { for (j = 0; j < 6; j++) { ixheaace_mps_515_calculate_ana_filterbank( &pstr_mps_enc->filterbank[j], in + (j * MAX_BUFFER_SIZE) + (l * 64), m_qmf_real + (j * MAX_TIME_SLOTS * NUM_QMF_BANDS) + (l * NUM_QMF_BANDS), m_qmf_imag + (j * MAX_TIME_SLOTS * NUM_QMF_BANDS) + (l * NUM_QMF_BANDS), pstr_qmf_ana_bank); } } for (k = 0; k < 6; k++) { ixheaace_mps_515_apply_ana_hyb_filterbank( &pstr_mps_enc->hyb_state[k], m_qmf_real + (k * MAX_TIME_SLOTS * NUM_QMF_BANDS), m_qmf_imag + (k * MAX_TIME_SLOTS * NUM_QMF_BANDS), pstr_mps_enc->time_slots, m_hybrid_real + (k * MAX_TIME_SLOTS * MAX_HYBRID_BANDS), m_hybrid_imag + k * MAX_TIME_SLOTS * MAX_HYBRID_BANDS); } pstr_frame_data = &pstr_mps_enc->bitstream_formatter->current_frame; switch (pstr_mps_enc->tree_config) { case 5151: ixheaace_mps_515_ott_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag, m_hybrid_real + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_frame_data->ott_data.cld[3][0], pstr_frame_data->ott_data.icc[3][0]); ixheaace_mps_515_ott_box( pstr_mps_enc->time_slots, m_hybrid_real + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_real + 5 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 5 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_frame_data->ott_data.cld[2][0], pstr_frame_data->ott_data.icc[2][0]); ixheaace_mps_515_ott_box( pstr_mps_enc->time_slots, m_hybrid_real + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_real + 3 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 3 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_frame_data->ott_data.cld[4][0], pstr_frame_data->ott_data.icc[4][0]); ixheaace_mps_515_ott_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag, m_hybrid_real + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_frame_data->ott_data.cld[1][0], pstr_frame_data->ott_data.icc[1][0]); ixheaace_mps_515_ott_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag, m_hybrid_real + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_frame_data->ott_data.cld[0][0], pstr_frame_data->ott_data.icc[0][0]); break; case 5152: ixheaace_mps_515_ott_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag, m_hybrid_real + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_frame_data->ott_data.cld[3][0], pstr_frame_data->ott_data.icc[3][0]); ixheaace_mps_515_ott_box( pstr_mps_enc->time_slots, m_hybrid_real + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_real + 5 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 5 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_frame_data->ott_data.cld[4][0], pstr_frame_data->ott_data.icc[4][0]); ixheaace_mps_515_ott_box( pstr_mps_enc->time_slots, m_hybrid_real + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_real + 3 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 3 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_frame_data->ott_data.cld[2][0], pstr_frame_data->ott_data.icc[2][0]); ixheaace_mps_515_ott_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag, m_hybrid_real + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_frame_data->ott_data.cld[1][0], pstr_frame_data->ott_data.icc[1][0]); ixheaace_mps_515_ott_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag, m_hybrid_real + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_frame_data->ott_data.cld[0][0], pstr_frame_data->ott_data.icc[0][0]); break; case 525: ixheaace_mps_515_ott_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag, m_hybrid_real + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_frame_data->ott_data.cld[1][0], pstr_frame_data->ott_data.icc[1][0]); ixheaace_mps_515_ott_box( pstr_mps_enc->time_slots, m_hybrid_real + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_real + 5 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 5 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_frame_data->ott_data.cld[2][0], pstr_frame_data->ott_data.icc[2][0]); ixheaace_mps_515_ott_box( pstr_mps_enc->time_slots, m_hybrid_real + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_real + 3 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 3 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_frame_data->ott_data.cld[0][0], pstr_frame_data->ott_data.icc[0][0]); ixheaace_mps_515_ttt_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag, m_hybrid_real + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_real + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_frame_data->ttt_data.cpc_cld1[0][0], pstr_frame_data->ttt_data.cpc_cld2[0][0]); } pstr_frame_data->framing_info.bs_framing_type = 1; pstr_frame_data->framing_info.bs_num_param_sets = 1; pstr_frame_data->framing_info.bs_param_slots[0] = 31; if (pstr_frame_data->bs_independency_flag_count == 0) { pstr_frame_data->bs_independency_flag = 1; } pstr_frame_data->bs_independency_flag_count = (pstr_frame_data->bs_independency_flag_count + 1) % 10; error = ixheaace_mps_515_write_spatial_frame(pstr_bitstream, pstr_mps_enc->bitstream_formatter); if (error) { return error; } if (pstr_mps_enc->output_channels == 1) { ixheaace_mps_515_apply_syn_hyb_filterbank( m_hybrid_real, m_hybrid_imag, pstr_mps_enc->time_slots, m_qmf_real_out, m_qmf_imag_out); ixheaace_mps_515_calculate_sbr_syn_filterbank(m_qmf_real_out, m_qmf_imag_out, out, 0, pstr_qmf_synth_bank, pstr_mps_enc->time_slots, pstr_mps_enc->sbr_qmf_states_synthesis); for (j = 0; j < pstr_mps_enc->frame_size; j++) { ptr_audio_output[j] = out1[j]; } } else { ixheaace_mps_515_apply_syn_hyb_filterbank( m_hybrid_real, m_hybrid_imag, pstr_mps_enc->time_slots, m_qmf_real_out, m_qmf_imag_out); ixheaace_mps_515_apply_syn_hyb_filterbank(m_hybrid_real + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_hybrid_imag + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, pstr_mps_enc->time_slots, m_qmf_real_out + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_qmf_imag_out + MAX_TIME_SLOTS * MAX_HYBRID_BANDS); ixheaace_mps_515_calculate_sbr_syn_filterbank(m_qmf_real_out, m_qmf_imag_out, out, 0, pstr_qmf_synth_bank, pstr_mps_enc->time_slots, pstr_mps_enc->sbr_qmf_states_synthesis); ixheaace_mps_515_calculate_sbr_syn_filterbank( m_qmf_real_out + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, m_qmf_imag_out + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, out + MAX_BUFFER_SIZE, 1, pstr_qmf_synth_bank, pstr_mps_enc->time_slots, pstr_mps_enc->sbr_qmf_states_synthesis); for (j = 0; j < pstr_mps_enc->frame_size; j++) { ptr_audio_output[2 * j] = out1[j]; ptr_audio_output[2 * j + 1] = out1[MAX_BUFFER_SIZE + j]; } } return IA_NO_ERROR; } VOID ixheaace_mps_515_close(ixheaace_mps_sac_enc *pstr_mps_enc) { if (pstr_mps_enc != NULL) { pstr_mps_enc->bitstream_formatter = NULL; } }