| /****************************************************************************** |
| * * |
| * 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 <string.h> |
| |
| #include "ixheaac_type_def.h" |
| #include "ixheaac_constants.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 "ixheaace_aac_constants.h" |
| #include "ixheaace_error_codes.h" |
| #include "ixheaac_error_standards.h" |
| #include "ixheaac_basic_ops32.h" |
| #include "ixheaac_basic_ops16.h" |
| #include "ixheaac_basic_ops40.h" |
| #include "ixheaac_basic_ops.h" |
| |
| #include "ixheaace_sbr_header.h" |
| #include "ixheaace_sbr_def.h" |
| #include "ixheaace_resampler.h" |
| #include "ixheaace_sbr_rom.h" |
| #include "ixheaace_common_rom.h" |
| #include "ixheaace_sbr_hbe.h" |
| #include "ixheaace_sbr_qmf_enc.h" |
| #include "ixheaace_sbr_tran_det.h" |
| #include "ixheaace_sbr_frame_info_gen.h" |
| #include "ixheaace_sbr_env_est.h" |
| #include "ixheaace_sbr_code_envelope.h" |
| #include "ixheaace_psy_const.h" |
| #include "ixheaace_tns.h" |
| #include "ixheaace_tns_params.h" |
| #include "ixheaace_rom.h" |
| #include "ixheaace_common_rom.h" |
| #include "ixheaace_bitbuffer.h" |
| |
| #include "ixheaace_sbr_main.h" |
| #include "ixheaace_common_rom.h" |
| #include "ixheaace_sbr_missing_harmonics_det.h" |
| #include "ixheaace_sbr_inv_filtering_estimation.h" |
| #include "ixheaace_sbr_noise_floor_est.h" |
| #include "ixheaace_sbr_ton_corr.h" |
| #include "iusace_esbr_pvc.h" |
| #include "iusace_esbr_inter_tes.h" |
| #include "ixheaace_sbr.h" |
| |
| #include "ixheaace_sbr_freq_scaling.h" |
| |
| #include "ixheaace_bitbuffer.h" |
| |
| #include "ixheaace_sbr_hybrid.h" |
| #include "ixheaace_sbr_ps_enc.h" |
| #include "ixheaace_sbr_cmondata.h" |
| #include "ixheaace_sbr_crc.h" |
| #include "ixheaace_sbr_enc_struct.h" |
| |
| VOID ixheaace_set_usac_sbr_params(ixheaace_pstr_sbr_enc pstr_env_enc, WORD32 usac_indep_flag, |
| WORD32 sbr_pre_proc, WORD32 sbr_pvc_active, WORD32 sbr_pvc_mode, |
| WORD32 inter_tes_active, WORD32 sbr_harmonic, |
| WORD32 sbr_patching_mode) { |
| WORD32 ch; |
| pstr_env_enc->str_sbr_bs.usac_indep_flag = usac_indep_flag; |
| pstr_env_enc->str_sbr_hdr.sbr_pre_proc = sbr_pre_proc; |
| pstr_env_enc->str_sbr_hdr.sbr_pvc_active = sbr_pvc_active; |
| if (pstr_env_enc->str_sbr_cfg.num_ch == 2) { |
| pstr_env_enc->str_sbr_hdr.sbr_pvc_mode = 0; |
| } else { |
| pstr_env_enc->str_sbr_hdr.sbr_pvc_mode = sbr_pvc_mode; |
| } |
| pstr_env_enc->str_sbr_hdr.sbr_inter_tes_active = inter_tes_active; |
| pstr_env_enc->str_sbr_hdr.sbr_harmonic = sbr_harmonic; |
| for (ch = 0; ch < pstr_env_enc->str_sbr_cfg.num_ch; ch++) { |
| pstr_env_enc->pstr_env_channel[ch]->enc_env_data.sbr_inter_tes = inter_tes_active; |
| pstr_env_enc->pstr_env_channel[ch]->enc_env_data.sbr_patching_mode = sbr_patching_mode; |
| } |
| } |
| FLOAT32 *ixheaace_get_hbe_resample_buffer(ixheaace_pstr_sbr_enc pstr_env_enc) { |
| return pstr_env_enc->ptr_hbe_resample_buf; |
| } |
| |
| static FLAG ia_enhaacplus_enc_get_sbr_tuning_table_idx( |
| UWORD32 bitrate, UWORD32 num_ch, UWORD32 sample_rate, ixheaace_str_qmf_tabs *pstr_qmf_tab, |
| UWORD32 *ptr_closest_br, WORD32 *ptr_idx_sr, WORD32 *ptr_idx_ch, WORD32 *ptr_idx_entry, |
| ixheaace_sbr_tuning_tables sbr_tune_table[10][2][10]) { |
| WORD32 found = 0; |
| WORD32 i_sr, br_closest_lower_idx_sr = -1, br_closest_upper_idx_sr = -1; |
| WORD32 br_closest_lower_idx_ch = -1, br_closest_upper_idx_sch = -1; |
| UWORD32 i_ch; |
| WORD32 i_entry, br_closest_lower_idx_entry = -1, br_closest_upper_idx_entry = -1; |
| UWORD32 br_closest_upper = 0, br_closest_lower = IXHEAACE_DISTANCE_CEIL_VALUE; |
| const UWORD32 *ptr_sample_rate_supported = pstr_qmf_tab->supported_sample_rate; |
| WORD32 check_size = sizeof(sbr_tune_table[i_sr][i_ch]) / sizeof(sbr_tune_table[i_sr][i_ch][0]); |
| for (i_sr = 0; i_sr < 9; i_sr++) { |
| for (i_ch = 0; i_ch < 2; i_ch++) { |
| found = 1; |
| if ((num_ch - 1) == (i_ch) && (sample_rate == ptr_sample_rate_supported[i_sr])) { |
| for (i_entry = 0; i_entry < check_size - 1; i_entry++) { |
| if ((bitrate >= sbr_tune_table[i_sr][i_ch][i_entry].bitrate_from) && |
| (bitrate < sbr_tune_table[i_sr][i_ch][i_entry].bitrate_to)) { |
| *ptr_idx_sr = i_sr; |
| *ptr_idx_ch = i_ch; |
| *ptr_idx_entry = i_entry; |
| return IXHEAACE_TABLE_IDX_FOUND; |
| } else { |
| if ((sbr_tune_table[i_sr][i_ch][i_entry].bitrate_from > bitrate) && |
| (sbr_tune_table[i_sr][i_ch][i_entry].bitrate_from < br_closest_lower)) { |
| br_closest_lower = sbr_tune_table[i_sr][i_ch][i_entry].bitrate_from; |
| br_closest_lower_idx_sr = i_sr; |
| br_closest_lower_idx_ch = i_ch; |
| br_closest_lower_idx_entry = i_entry; |
| } |
| if ((sbr_tune_table[i_sr][i_ch][i_entry].bitrate_to <= bitrate) && |
| (sbr_tune_table[i_sr][i_ch][i_entry].bitrate_to > br_closest_upper)) { |
| br_closest_upper = sbr_tune_table[i_sr][i_ch][i_entry].bitrate_to - 1; |
| br_closest_upper_idx_sr = i_sr; |
| br_closest_upper_idx_sch = i_ch; |
| br_closest_upper_idx_entry = i_entry; |
| } |
| } |
| |
| if (sbr_tune_table[i_sr][i_ch][i_entry + 1].bitrate_from == 0) { |
| *ptr_idx_sr = i_sr; |
| *ptr_idx_ch = i_ch; |
| *ptr_idx_entry = i_entry; |
| break; |
| } |
| } |
| } |
| } |
| } |
| |
| if (br_closest_upper_idx_entry >= 0) { |
| return IXHEAACE_TABLE_IDX_FOUND; |
| } |
| |
| if (ptr_closest_br != NULL) { |
| if (found) { |
| WORD32 distance_upper = IXHEAACE_DISTANCE_CEIL_VALUE, |
| distance_lower = IXHEAACE_DISTANCE_CEIL_VALUE; |
| if (br_closest_lower_idx_entry >= 0) { |
| distance_lower = sbr_tune_table[br_closest_lower_idx_sr][br_closest_lower_idx_ch] |
| [br_closest_lower_idx_entry] |
| .bitrate_from - |
| bitrate; |
| } |
| if (br_closest_upper_idx_entry >= 0) { |
| distance_upper = |
| bitrate - sbr_tune_table[br_closest_upper_idx_sr][br_closest_upper_idx_sch] |
| [br_closest_lower_idx_entry] |
| .bitrate_to; |
| } |
| |
| *ptr_closest_br = (distance_upper < distance_lower) ? br_closest_upper : br_closest_lower; |
| } else { |
| *ptr_closest_br = 0; |
| } |
| } |
| |
| return IXHEAACE_TABLE_IDX_NOT_FOUND; |
| } |
| |
| static IA_ERRORCODE ixheaace_create_env_channel( |
| WORD32 ch, ixheaace_pstr_sbr_config_data pstr_sbr_cfg, |
| ixheaace_pstr_sbr_hdr_data pstr_sbr_hdr, ixheaace_pstr_enc_channel pstr_env, |
| ixheaace_pstr_sbr_cfg params, WORD32 *ptr_common_buf, WORD32 *ptr_common_buffer2, |
| FLOAT32 *ptr_sbr_env_r_buf, FLOAT32 *ptr_sbr_env_i_buf, ixheaace_str_sbr_tabs *pstr_sbr_tab) { |
| WORD32 e = 1; |
| WORD32 tran_fc = 0; |
| IA_ERRORCODE err_code = IA_NO_ERROR; |
| |
| WORD32 start_index; |
| WORD32 noise_groups[2] = {3, 3}; |
| |
| e = ixheaac_shl32(1, params->e); |
| |
| if (params->use_low_freq_res == 1) { |
| pstr_env->enc_env_data.freq_res_fix = FREQ_RES_LOW; |
| } else { |
| pstr_env->enc_env_data.freq_res_fix = FREQ_RES_HIGH; |
| } |
| |
| pstr_env->enc_env_data.sbr_xpos_mode = (ixheaace_sbr_xpos_mode)params->sbr_xpos_mode; |
| pstr_env->enc_env_data.sbr_xpos_ctrl = params->sbr_xpos_ctrl; |
| |
| if (params->is_ld_sbr) { |
| pstr_env->str_sbr_qmf.num_time_slots = 16; |
| pstr_env->str_sbr_qmf.rate = 1; |
| if (params->frame_flag_480 == 1) { |
| pstr_env->str_sbr_qmf.num_time_slots = 15; |
| } |
| } else { |
| pstr_env->str_sbr_qmf.num_time_slots = 16; |
| pstr_env->str_sbr_qmf.rate = 2; |
| if (params->frame_flag_960 == 1) { |
| pstr_env->str_sbr_qmf.num_time_slots = 15; |
| } |
| if (pstr_sbr_cfg->sbr_codec == USAC_SBR) { |
| if (USAC_SBR_RATIO_INDEX_4_1 == pstr_sbr_cfg->sbr_ratio_idx) { |
| pstr_env->str_sbr_qmf.rate = 4; |
| } |
| } |
| } |
| |
| ixheaace_create_qmf_bank(&pstr_env->str_sbr_qmf, pstr_sbr_tab, params->is_ld_sbr); |
| |
| start_index = 576; |
| |
| err_code = ixheaace_create_ton_corr_param_extr( |
| ch, &pstr_env->str_ton_corr, pstr_sbr_cfg->sample_freq, 64, params->sbr_xpos_ctrl, |
| pstr_sbr_cfg->ptr_freq_band_tab[LOW_RES][0], pstr_sbr_cfg->ptr_v_k_master, |
| pstr_sbr_cfg->num_master, params->ana_max_level, pstr_sbr_cfg->ptr_freq_band_tab, |
| pstr_sbr_cfg->num_scf, pstr_sbr_hdr->sbr_noise_bands, params->use_speech_config, |
| ptr_common_buf, pstr_sbr_tab->ptr_qmf_tab, params->is_ld_sbr); |
| if (err_code) { |
| return err_code; |
| } |
| |
| pstr_env->enc_env_data.noise_band_count = |
| pstr_env->str_ton_corr.sbr_noise_floor_est.num_of_noise_bands; |
| |
| noise_groups[0] = pstr_env->enc_env_data.noise_band_count; |
| noise_groups[1] = pstr_env->enc_env_data.noise_band_count; |
| |
| pstr_env->enc_env_data.sbr_invf_mode = (ixheaace_invf_mode)params->sbr_invf_mode; |
| |
| if (pstr_env->enc_env_data.sbr_invf_mode == IXHEAACE_INVF_SWITCHED) { |
| pstr_env->enc_env_data.sbr_invf_mode = IXHEAACE_INVF_MID_LEVEL; |
| pstr_env->str_ton_corr.switch_inverse_filt = TRUE; |
| } else { |
| pstr_env->str_ton_corr.switch_inverse_filt = FALSE; |
| } |
| |
| tran_fc = params->tran_fc; |
| |
| if (tran_fc == 0) { |
| tran_fc = ixheaac_min32(5000, ixheaace_get_sbr_start_freq_raw(pstr_sbr_hdr->sbr_start_freq, |
| 64, pstr_sbr_cfg->sample_freq)); |
| } |
| |
| tran_fc = (tran_fc * 4 * 64 / pstr_sbr_cfg->sample_freq + 1) >> 1; |
| if (params->sbr_codec == USAC_SBR) { |
| pstr_env->str_sbr_extract_env.sbr_ratio_idx = params->sbr_ratio_idx; |
| } |
| err_code = ixheaace_create_extract_sbr_envelope( |
| ch, &pstr_env->str_sbr_extract_env, start_index, ptr_common_buffer2, ptr_sbr_env_r_buf, |
| ptr_sbr_env_i_buf, params->frame_flag_480, params->sbr_codec); |
| if (err_code) { |
| return err_code; |
| } |
| |
| ixheaace_create_sbr_code_envelope(&pstr_env->str_sbr_code_env, pstr_sbr_cfg->num_scf, |
| params->delta_t_across_frames, params->df_edge_1st_env, |
| params->df_edge_incr); |
| |
| ixheaace_create_sbr_code_envelope(&pstr_env->str_sbr_code_noise_floor, noise_groups, |
| params->delta_t_across_frames, 0, 0); |
| |
| pstr_env->sbr_amp_res_init = pstr_sbr_hdr->sbr_amp_res; |
| |
| err_code = ixheaace_init_sbr_huffman_tabs( |
| &pstr_env->enc_env_data, &pstr_env->str_sbr_code_env, &pstr_env->str_sbr_code_noise_floor, |
| pstr_env->sbr_amp_res_init, pstr_sbr_tab->ptr_sbr_huff_tab); |
| if (err_code) { |
| return err_code; |
| } |
| |
| ixheaace_create_frame_info_generator(&pstr_env->str_sbr_env_frame, params->spread, e, |
| params->stat, pstr_env->enc_env_data.freq_res_fix, |
| params->use_low_freq_res); |
| |
| ixheaace_create_sbr_transient_detector( |
| &pstr_env->str_sbr_trans_detector, pstr_sbr_cfg->sample_freq, |
| params->codec_settings.standard_bitrate * params->codec_settings.num_channels, |
| params->codec_settings.bit_rate, params->tran_thr, params->tran_det_mode, tran_fc, |
| params->frame_flag_480, params->is_ld_sbr, params->sbr_ratio_idx, params->sbr_codec, |
| pstr_sbr_cfg->ptr_freq_band_tab[0][0]); |
| |
| pstr_sbr_cfg->xpos_control_switch = params->sbr_xpos_ctrl; |
| pstr_env->enc_env_data.no_harmonics = pstr_sbr_cfg->num_scf[HI]; |
| pstr_env->enc_env_data.synthetic_coding = pstr_sbr_cfg->detect_missing_harmonics; |
| pstr_env->enc_env_data.add_harmonic_flag = 0; |
| ixheaace_init_esbr_inter_tes(&pstr_env->str_inter_tes_enc, params->sbr_ratio_idx); |
| pstr_env->enc_env_data.ptr_sbr_inter_tes_shape = pstr_env->str_inter_tes_enc.bs_tes_shape; |
| pstr_env->enc_env_data.ptr_sbr_inter_tes_shape_mode = |
| pstr_env->str_inter_tes_enc.bs_tes_shape_mode; |
| |
| if (params->sbr_codec == USAC_SBR) { |
| pstr_env->enc_env_data.harmonic_sbr = pstr_sbr_hdr->sbr_harmonic; |
| if (1 == pstr_env->enc_env_data.harmonic_sbr) { |
| WORD32 persist_mem_used = 0, bd; |
| WORD32 upsamp_4_flag, num_aac_samples, num_out_samples; |
| switch (pstr_sbr_cfg->sbr_ratio_idx) { |
| case USAC_SBR_RATIO_INDEX_2_1: |
| upsamp_4_flag = 0; |
| num_aac_samples = 1024; |
| num_out_samples = 2048; |
| break; |
| case USAC_SBR_RATIO_INDEX_4_1: |
| upsamp_4_flag = 1; |
| num_aac_samples = 1024; |
| num_out_samples = 4096; |
| break; |
| case USAC_SBR_RATIO_INDEX_8_3: |
| upsamp_4_flag = 0; |
| num_aac_samples = 768; |
| num_out_samples = 2048; |
| break; |
| default: |
| upsamp_4_flag = 0; |
| num_aac_samples = 1024; |
| num_out_samples = 2048; |
| break; |
| } |
| |
| ixheaace_esbr_hbe_data_init( |
| pstr_env->pstr_hbe_enc->pstr_hbe_txposer, num_aac_samples, upsamp_4_flag, |
| num_out_samples, pstr_env->pstr_hbe_enc->ptr_hbe_txposer_buffers, &persist_mem_used); |
| |
| ixheaace_esbr_qmf_init(&(pstr_env->pstr_hbe_enc->str_codec_qmf_bank), |
| pstr_sbr_cfg->sbr_ratio_idx, num_out_samples); |
| |
| for (bd = 0; bd < (IXHEAACE_MAX_FREQ_COEFFS / 2 + 1); bd++) { |
| pstr_env->pstr_hbe_enc->pstr_hbe_txposer->freq_band_tbl_lo[bd] = |
| pstr_sbr_cfg->sbr_freq_band_tab_lo[bd]; |
| pstr_env->pstr_hbe_enc->pstr_hbe_txposer->freq_band_tbl_hi[bd] = |
| pstr_sbr_cfg->sbr_freq_band_tab_hi[bd]; |
| } |
| |
| for (; bd < (IXHEAACE_MAX_FREQ_COEFFS + 1); bd++) { |
| pstr_env->pstr_hbe_enc->pstr_hbe_txposer->freq_band_tbl_hi[bd] = |
| pstr_sbr_cfg->sbr_freq_band_tab_hi[bd]; |
| } |
| |
| pstr_env->pstr_hbe_enc->pstr_hbe_txposer->ptr_freq_band_tab[LO] = |
| pstr_env->pstr_hbe_enc->pstr_hbe_txposer->freq_band_tbl_lo; |
| pstr_env->pstr_hbe_enc->pstr_hbe_txposer->ptr_freq_band_tab[HI] = |
| pstr_env->pstr_hbe_enc->pstr_hbe_txposer->freq_band_tbl_hi; |
| pstr_env->pstr_hbe_enc->pstr_hbe_txposer->num_sf_bands[0] = |
| (WORD16)pstr_sbr_cfg->num_scf[0]; |
| pstr_env->pstr_hbe_enc->pstr_hbe_txposer->num_sf_bands[1] = |
| (WORD16)pstr_sbr_cfg->num_scf[1]; |
| pstr_env->pstr_hbe_enc->pstr_hbe_txposer->upsamp_4_flag = upsamp_4_flag; |
| err_code = ixheaace_dft_hbe_data_reinit(pstr_env->pstr_hbe_enc->pstr_hbe_txposer); |
| if (err_code) { |
| return err_code; |
| } |
| err_code = ixheaace_qmf_hbe_data_reinit(pstr_env->pstr_hbe_enc->pstr_hbe_txposer); |
| if (err_code) { |
| return err_code; |
| } |
| } |
| } else |
| |
| { |
| pstr_env->enc_env_data.harmonic_sbr = 0; |
| } |
| |
| return err_code; |
| } |
| |
| UWORD32 |
| ixheaace_is_sbr_setting_available(UWORD32 bitrate, UWORD32 num_output_channels, |
| UWORD32 sample_rate_input, UWORD32 *ptr_core_sr, |
| ixheaace_str_qmf_tabs *pstr_qmf_tab, WORD32 aot) { |
| FLAG table_found = IXHEAACE_TABLE_IDX_NOT_FOUND; |
| WORD32 idx_sr; |
| WORD32 idx_ch; |
| WORD32 idx_entry; |
| |
| switch (num_output_channels) { |
| case MONO: |
| if (sample_rate_input < 16000 || sample_rate_input > 48000) { |
| return 0; |
| } |
| case STEREO: |
| if (sample_rate_input < 32000 || sample_rate_input > 48000) { |
| return 0; |
| } |
| } |
| |
| *ptr_core_sr = sample_rate_input / 2; |
| |
| table_found = ia_enhaacplus_enc_get_sbr_tuning_table_idx( |
| bitrate, num_output_channels, *ptr_core_sr, pstr_qmf_tab, NULL, &idx_sr, &idx_ch, |
| &idx_entry, |
| ((AOT_AAC_ELD == aot) ? pstr_qmf_tab->sbr_tuning_table_ld |
| : pstr_qmf_tab->sbr_tuning_table_lc)); |
| |
| return (table_found == IXHEAACE_TABLE_IDX_NOT_FOUND) ? 0 : 1; |
| } |
| |
| UWORD32 ixheaace_sbr_limit_bitrate(UWORD32 bit_rate, UWORD32 num_ch, UWORD32 core_sample_rate, |
| ixheaace_str_qmf_tabs *pstr_qmf_tab, WORD32 aot) { |
| UWORD32 new_bit_rate; |
| WORD32 index; |
| WORD32 idx_sr; |
| WORD32 idx_ch; |
| WORD32 idx_entry; |
| |
| index = ia_enhaacplus_enc_get_sbr_tuning_table_idx( |
| bit_rate, num_ch, core_sample_rate, pstr_qmf_tab, &new_bit_rate, &idx_sr, &idx_ch, |
| &idx_entry, |
| ((AOT_AAC_ELD == aot) ? pstr_qmf_tab->sbr_tuning_table_ld |
| : pstr_qmf_tab->sbr_tuning_table_lc)); |
| if (index != IXHEAACE_TABLE_IDX_NOT_FOUND) { |
| new_bit_rate = bit_rate; |
| } |
| |
| return new_bit_rate; |
| } |
| |
| VOID ixheaace_adjust_sbr_settings(const ixheaace_pstr_sbr_cfg pstr_config, UWORD32 bit_rate, |
| UWORD32 num_ch, UWORD32 fs_core, UWORD32 trans_fac, |
| UWORD32 std_br, ixheaace_str_qmf_tabs *pstr_qmf_tab, |
| WORD32 aot, WORD32 is_esbr_4_1) { |
| FLAG table_found = IXHEAACE_TABLE_IDX_NOT_FOUND; |
| WORD32 idx_sr = 0; |
| WORD32 idx_ch = 0; |
| WORD32 idx_entry = 0; |
| /* set the codec settings */ |
| pstr_config->codec_settings.bit_rate = bit_rate; |
| pstr_config->codec_settings.num_channels = num_ch; |
| pstr_config->codec_settings.sample_freq = fs_core; |
| pstr_config->codec_settings.trans_fac = trans_fac; |
| pstr_config->codec_settings.standard_bitrate = std_br; |
| |
| if (bit_rate <= 20000) { |
| pstr_config->parametric_coding = 0; |
| pstr_config->use_speech_config = 1; |
| } |
| |
| table_found = ia_enhaacplus_enc_get_sbr_tuning_table_idx( |
| bit_rate, num_ch, fs_core, pstr_qmf_tab, NULL, &idx_sr, &idx_ch, &idx_entry, |
| ((AOT_AAC_ELD == aot) ? pstr_qmf_tab->sbr_tuning_table_ld |
| : pstr_qmf_tab->sbr_tuning_table_lc)); |
| |
| if (table_found == IXHEAACE_TABLE_IDX_NOT_FOUND) { |
| if (aot == AOT_USAC) { |
| if (num_ch == 1) { |
| if (bit_rate >= 30000) { |
| pstr_config->start_freq = 7; |
| pstr_config->stop_freq = 9; |
| } else { |
| pstr_config->start_freq = 5; |
| pstr_config->stop_freq = 7; |
| } |
| } else { |
| pstr_config->start_freq = 12; |
| pstr_config->stop_freq = 9; |
| } |
| } |
| } else { |
| switch (aot) { |
| case AOT_AAC_ELD: { |
| pstr_config->start_freq = |
| pstr_qmf_tab->sbr_tuning_table_ld[idx_sr][idx_ch][idx_entry].freq_band.start_freq; |
| pstr_config->stop_freq = |
| pstr_qmf_tab->sbr_tuning_table_ld[idx_sr][idx_ch][idx_entry].freq_band.stop_freq; |
| |
| pstr_config->sbr_noise_bands = |
| pstr_qmf_tab->sbr_tuning_table_ld[idx_sr][idx_ch][idx_entry].noise.num_noise_bands; |
| |
| pstr_config->noise_floor_offset = |
| pstr_qmf_tab->sbr_tuning_table_ld[idx_sr][idx_ch][idx_entry].noise.noise_floor_offset; |
| |
| pstr_config->ana_max_level = |
| pstr_qmf_tab->sbr_tuning_table_ld[idx_sr][idx_ch][idx_entry].noise.noise_max_level; |
| pstr_config->stereo_mode = |
| pstr_qmf_tab->sbr_tuning_table_ld[idx_sr][idx_ch][idx_entry].stereo_mode; |
| pstr_config->freq_scale = |
| pstr_qmf_tab->sbr_tuning_table_ld[idx_sr][idx_ch][idx_entry].freq_scale; |
| break; |
| } |
| default: { |
| pstr_config->start_freq = |
| pstr_qmf_tab->sbr_tuning_table_lc[idx_sr][idx_ch][idx_entry].freq_band.start_freq; |
| pstr_config->stop_freq = |
| pstr_qmf_tab->sbr_tuning_table_lc[idx_sr][idx_ch][idx_entry].freq_band.stop_freq; |
| |
| pstr_config->sbr_noise_bands = |
| pstr_qmf_tab->sbr_tuning_table_lc[idx_sr][idx_ch][idx_entry].noise.num_noise_bands; |
| |
| pstr_config->noise_floor_offset = |
| pstr_qmf_tab->sbr_tuning_table_lc[idx_sr][idx_ch][idx_entry].noise.noise_floor_offset; |
| |
| pstr_config->ana_max_level = |
| pstr_qmf_tab->sbr_tuning_table_lc[idx_sr][idx_ch][idx_entry].noise.noise_max_level; |
| pstr_config->stereo_mode = |
| pstr_qmf_tab->sbr_tuning_table_lc[idx_sr][idx_ch][idx_entry].stereo_mode; |
| pstr_config->freq_scale = |
| pstr_qmf_tab->sbr_tuning_table_lc[idx_sr][idx_ch][idx_entry].freq_scale; |
| break; |
| } |
| } |
| |
| if (pstr_config->sbr_codec == ELD_SBR) { |
| pstr_config->send_header_data_time = -1; |
| if ((num_ch == NUM_CHANS_MONO) && (bit_rate <= 22000)) { |
| pstr_config->use_low_freq_res = 1; |
| } |
| if ((num_ch == NUM_CHANS_STEREO) && (bit_rate <= 48000)) { |
| pstr_config->use_low_freq_res = 1; |
| } |
| } |
| else { |
| if ((num_ch == NUM_CHANS_MONO) && (bit_rate <= 18000)) { |
| pstr_config->use_low_freq_res = 1; |
| } |
| if ((num_ch == NUM_CHANS_STEREO) && (bit_rate <= 28000)) { |
| pstr_config->use_low_freq_res = 1; |
| } |
| } |
| if (bit_rate <= 20000) { |
| pstr_config->parametric_coding = 0; |
| pstr_config->use_speech_config = 1; |
| } |
| |
| if (pstr_config->use_ps) { |
| pstr_config->ps_mode = ixheaace_get_ps_mode(bit_rate); |
| } |
| } |
| |
| if (is_esbr_4_1) { |
| pstr_config->start_freq = 10; |
| pstr_config->stop_freq = 11; |
| } |
| } |
| |
| VOID ixheaace_initialize_sbr_defaults(ixheaace_pstr_sbr_cfg pstr_config) { |
| pstr_config->send_header_data_time = 500; |
| pstr_config->crc_sbr = 0; |
| pstr_config->tran_thr = 13000; |
| pstr_config->detect_missing_harmonics = 1; |
| pstr_config->parametric_coding = 1; |
| pstr_config->use_speech_config = 0; |
| |
| pstr_config->sbr_data_extra = 0; |
| pstr_config->amp_res = IXHEAACE_SBR_AMP_RES_3_0; |
| pstr_config->tran_fc = 0; |
| pstr_config->tran_det_mode = 1; |
| pstr_config->spread = 1; |
| pstr_config->stat = 0; |
| pstr_config->e = 1; |
| pstr_config->delta_t_across_frames = 1; |
| pstr_config->df_edge_1st_env = 0.3f; |
| pstr_config->df_edge_incr = 0.3f; |
| |
| pstr_config->sbr_invf_mode = IXHEAACE_INVF_SWITCHED; |
| pstr_config->sbr_xpos_mode = IXHEAACE_XPOS_LC; |
| pstr_config->sbr_xpos_ctrl = SBR_XPOS_CTRL_DEFAULT; |
| pstr_config->sbr_xpos_lvl = 0; |
| |
| pstr_config->use_ps = 0; |
| pstr_config->ps_mode = -1; |
| |
| pstr_config->stereo_mode = IXHEAACE_SBR_MODE_SWITCH_LRC; |
| pstr_config->ana_max_level = 6; |
| pstr_config->noise_floor_offset = 0; |
| pstr_config->start_freq = 5; |
| pstr_config->stop_freq = 9; |
| |
| pstr_config->freq_scale = SBR_FREQ_SCALE_DEFAULT; |
| pstr_config->alter_scale = SBR_ALTER_SCALE_DEFAULT; |
| pstr_config->sbr_noise_bands = SBR_NOISE_BANDS_DEFAULT; |
| |
| pstr_config->sbr_limiter_bands = SBR_LIMITER_BANDS_DEFAULT; |
| pstr_config->sbr_limiter_gains = SBR_LIMITER_GAINS_DEFAULT; |
| pstr_config->sbr_interpol_freq = SBR_INTERPOL_FREQ_DEFAULT; |
| pstr_config->sbr_smoothing_length = SBR_SMOOTHING_LENGTH_DEFAULT; |
| pstr_config->is_ld_sbr = 0; |
| pstr_config->is_esbr = 0; |
| pstr_config->frame_flag_960 = 0; |
| pstr_config->frame_flag_480 = 0; |
| pstr_config->hq_esbr = 0; |
| pstr_config->sbr_pvc_active = 0; |
| pstr_config->sbr_harmonic = 0; |
| pstr_config->sbr_ratio_idx = 0; // NO_SBR |
| pstr_config->use_low_freq_res = 0; |
| } |
| |
| static IA_ERRORCODE ia_enhaacplus_enc_update_freq_band_tab( |
| ixheaace_pstr_sbr_config_data pstr_sbr_cfg, ixheaace_pstr_sbr_hdr_data pstr_sbr_hdr, |
| WORD32 num_qmf_ch) { |
| IA_ERRORCODE err_code = IA_NO_ERROR; |
| WORD32 k0, k2; |
| WORD32 samp_freq = pstr_sbr_cfg->sample_freq; |
| if ((pstr_sbr_cfg->sbr_codec == USAC_SBR) && |
| (pstr_sbr_cfg->sbr_ratio_idx == USAC_SBR_RATIO_INDEX_4_1)) { |
| samp_freq = samp_freq / 2; |
| } |
| err_code = ixheaace_find_start_and_stop_band( |
| samp_freq, num_qmf_ch, pstr_sbr_hdr->sbr_start_freq, pstr_sbr_hdr->sbr_stop_freq, |
| pstr_sbr_hdr->sample_rate_mode, &k0, &k2, pstr_sbr_cfg->sbr_ratio_idx, |
| pstr_sbr_cfg->sbr_codec); |
| if (err_code) { |
| return err_code; |
| } |
| |
| err_code = ixheaace_update_freq_scale( |
| pstr_sbr_cfg->ptr_v_k_master, &pstr_sbr_cfg->num_master, k0, k2, pstr_sbr_hdr->freq_scale, |
| pstr_sbr_hdr->alter_scale, pstr_sbr_hdr->sample_rate_mode); |
| if (err_code) { |
| return err_code; |
| } |
| |
| pstr_sbr_hdr->sbr_xover_band = 0; |
| |
| ixheaace_update_high_res(pstr_sbr_cfg->ptr_freq_band_tab[HI], &pstr_sbr_cfg->num_scf[HI], |
| pstr_sbr_cfg->ptr_v_k_master, pstr_sbr_cfg->num_master, |
| &pstr_sbr_hdr->sbr_xover_band, pstr_sbr_hdr->sample_rate_mode, |
| num_qmf_ch); |
| |
| ixheaace_update_low_res(pstr_sbr_cfg->ptr_freq_band_tab[LO], &pstr_sbr_cfg->num_scf[LO], |
| pstr_sbr_cfg->ptr_freq_band_tab[HI], pstr_sbr_cfg->num_scf[HI]); |
| |
| pstr_sbr_cfg->xover_freq = |
| (pstr_sbr_cfg->ptr_freq_band_tab[LOW_RES][0] * pstr_sbr_cfg->sample_freq / num_qmf_ch + |
| 1) >> |
| 1; |
| |
| return err_code; |
| } |
| |
| VOID ia_enhaacplus_enc_init_sbr_tabs(ixheaace_str_sbr_tabs *pstr_sbr_tabs) { |
| pstr_sbr_tabs->ptr_ps_tab = (ixheaace_str_ps_tab *)&ia_enhaacplus_enc_ps_tab; |
| pstr_sbr_tabs->ptr_qmf_tab = (ixheaace_str_qmf_tabs *)&ixheaace_qmf_tab; |
| pstr_sbr_tabs->ptr_sbr_huff_tab = (ixheaace_str_sbr_huff_tabs *)&ixheaace_sbr_huff_tab; |
| pstr_sbr_tabs->ptr_resamp_tab = |
| (ixheaace_resampler_table *)&ixheaace_resamp_2_to_1_iir_filt_params; |
| pstr_sbr_tabs->ptr_esbr_sfb_tab = (ixheaace_str_esbr_sfb_bin_tabs *)&ia_esbr_sfb_bin_tabs; |
| } |
| |
| IA_ERRORCODE |
| ixheaace_env_encode_frame(ixheaace_pstr_sbr_enc pstr_env_encoder, FLOAT32 *ptr_samples, |
| FLOAT32 *ptr_core_buffer, UWORD32 time_sn_stride, |
| UWORD8 *ptr_num_anc_bytes, UWORD8 *ptr_anc_data, |
| ixheaace_str_sbr_tabs *pstr_sbr_tab, |
| ixheaace_comm_tables *pstr_common_tab, UWORD8 *ptr_mps_data, |
| WORD32 mps_bits, WORD32 flag_fl_small, WORD32 *usac_stat_bits) { |
| IA_ERRORCODE err_code = IA_NO_ERROR; |
| |
| if (pstr_env_encoder != NULL) { |
| ixheaace_pstr_sbr_bitstream_data pstr_sbr_bs = &pstr_env_encoder->str_sbr_bs; |
| |
| pstr_sbr_bs->header_active = 0; |
| if ((pstr_env_encoder->str_sbr_cfg.is_ld_sbr) && |
| (pstr_sbr_bs->count_send_header_data == pstr_sbr_bs->nr_send_header_data - 1)) { |
| pstr_sbr_bs->header_active = 1; |
| } |
| |
| if (pstr_sbr_bs->count_send_header_data == 0) { |
| pstr_sbr_bs->header_active = 1; |
| } |
| |
| if (pstr_sbr_bs->nr_send_header_data == 0) { |
| pstr_sbr_bs->count_send_header_data = 1; |
| } else { |
| if (pstr_env_encoder->str_sbr_cfg.is_ld_sbr) { |
| if (pstr_sbr_bs->count_send_header_data >= 0) { |
| pstr_sbr_bs->count_send_header_data++; |
| |
| pstr_sbr_bs->count_send_header_data %= pstr_sbr_bs->nr_send_header_data; |
| } |
| } else { |
| pstr_sbr_bs->count_send_header_data++; |
| |
| pstr_sbr_bs->count_send_header_data %= pstr_sbr_bs->nr_send_header_data; |
| } |
| } |
| |
| ixheaace_init_sbr_bitstream( |
| &pstr_env_encoder->str_cmon_data, (UWORD8 *)pstr_env_encoder->sbr_payload, |
| sizeof(pstr_env_encoder->sbr_payload), pstr_env_encoder->str_sbr_bs.crc_active, |
| pstr_env_encoder->str_sbr_cfg.sbr_codec); |
| |
| err_code = ixheaace_extract_sbr_envelope(ptr_samples, ptr_core_buffer, time_sn_stride, |
| pstr_env_encoder, pstr_sbr_tab, pstr_common_tab, |
| flag_fl_small); |
| if (err_code) { |
| return err_code; |
| } |
| |
| if (mps_bits) { |
| WORD32 num_bytes; |
| if (pstr_env_encoder->str_sbr_cfg.sbr_codec == ELD_SBR) { |
| ixheaace_write_bits(&pstr_env_encoder->str_cmon_data.str_sbr_bit_buf, |
| IXHEAACE_MPS_EXT_LDSAC_DATA, 4); |
| ixheaace_write_bits(&pstr_env_encoder->str_cmon_data.str_sbr_bit_buf, *ptr_mps_data++, 4); |
| } |
| num_bytes = mps_bits >> 3; |
| for (WORD32 k = 0; k < num_bytes; k++) { |
| ixheaace_write_bits(&pstr_env_encoder->str_cmon_data.str_sbr_bit_buf, *ptr_mps_data++, 8); |
| } |
| if (mps_bits & 0x7) { |
| ixheaace_write_bits(&pstr_env_encoder->str_cmon_data.str_sbr_bit_buf, |
| (*ptr_mps_data++) >> (8 - (mps_bits & 0x7)), mps_bits & 0x7); |
| } |
| } |
| |
| ixheaace_assemble_sbr_bitstream(&pstr_env_encoder->str_cmon_data, |
| pstr_env_encoder->str_sbr_cfg.sbr_codec); |
| |
| pstr_env_encoder->sbr_payload_size = |
| ((ia_enhaacplus_enc_get_bits_available(&pstr_env_encoder->str_cmon_data.str_sbr_bit_buf) + |
| 7) / |
| 8); |
| |
| if (pstr_env_encoder->sbr_payload_size > IXHEAACE_MAX_PAYLOAD_SIZE) { |
| pstr_env_encoder->sbr_payload_size = 0; |
| } |
| |
| if (ptr_anc_data) { |
| *ptr_num_anc_bytes = (UWORD8)pstr_env_encoder->sbr_payload_size; |
| memcpy(ptr_anc_data, pstr_env_encoder->sbr_payload, pstr_env_encoder->sbr_payload_size); |
| } |
| if (usac_stat_bits) { |
| *usac_stat_bits = pstr_env_encoder->str_cmon_data.sbr_hdr_bits + |
| pstr_env_encoder->str_cmon_data.sbr_data_bits; |
| } |
| } |
| return err_code; |
| } |
| |
| WORD32 ixheaace_sbr_enc_scr_size(VOID) { |
| return IXHEAAC_GET_SIZE_ALIGNED(sizeof(ixheaace_str_sbr_enc_scratch), BYTE_ALIGN_8); |
| } |
| |
| VOID ia_enhaacplus_enc_get_scratch_bufs(VOID *ptr_scr, FLOAT32 **ptr_shared_buf1, |
| FLOAT32 **ptr_shared_buf2) { |
| ixheaace_str_sbr_enc_scratch *ptr_sbr_enc_scr = (ixheaace_str_sbr_enc_scratch *)ptr_scr; |
| |
| *ptr_shared_buf1 = ptr_sbr_enc_scr->sbr_env_r_buf; |
| *ptr_shared_buf2 = ptr_sbr_enc_scr->sbr_env_i_buf; |
| } |
| |
| VOID ia_enhaacplus_enc_get_shared_bufs(VOID *ptr_scr, WORD32 **ptr_shared_buf1, |
| WORD32 **ptr_shared_buf2, WORD32 **ptr_shared_buf3, |
| WORD8 **ptr_shared_buf4, WORD32 aacenc_blocksize) { |
| ixheaace_str_sbr_enc_scratch *ptr_sbr_enc_scr = (ixheaace_str_sbr_enc_scratch *)ptr_scr; |
| |
| *ptr_shared_buf1 = (WORD32 *)ptr_sbr_enc_scr->ps_buf3; |
| *ptr_shared_buf2 = (WORD32 *)ptr_sbr_enc_scr->sbr_env_r_buf; |
| *ptr_shared_buf3 = (WORD32 *)ptr_sbr_enc_scr->sbr_env_i_buf; |
| *ptr_shared_buf4 = |
| (WORD8 *)&ptr_sbr_enc_scr |
| ->sbr_env_i_buf[IXHEAACE_QMF_TIME_SLOTS * IXHEAACE_QMF_CHANNELS + aacenc_blocksize]; |
| } |
| |
| VOID ixheaace_sbr_set_scratch_ptr(ixheaace_pstr_sbr_enc pstr_env_enc, VOID *ptr_scr) { |
| pstr_env_enc->ptr_sbr_enc_scr = ptr_scr; |
| } |
| |
| WORD32 ixheaace_sbr_enc_pers_size(WORD32 num_ch, WORD32 use_ps, WORD32 harmonic_sbr) { |
| WORD32 num_bytes; |
| num_bytes = IXHEAAC_GET_SIZE_ALIGNED(sizeof(struct ixheaace_str_sbr_enc), BYTE_ALIGN_8); |
| num_bytes += (IXHEAAC_GET_SIZE_ALIGNED(sizeof(struct ixheaace_str_enc_channel), BYTE_ALIGN_8) * |
| num_ch); |
| num_bytes += IXHEAAC_GET_SIZE_ALIGNED(sizeof(ixheaace_pvc_enc), BYTE_ALIGN_8); |
| num_bytes += (IXHEAAC_GET_SIZE_ALIGNED(2 * sizeof(FLOAT32) * QMF_FILTER_LENGTH, BYTE_ALIGN_8) * |
| num_ch); |
| if (1 == harmonic_sbr) { |
| num_bytes += (IXHEAAC_GET_SIZE_ALIGNED(sizeof(ixheaace_str_hbe_enc), BYTE_ALIGN_8) * num_ch); |
| num_bytes += (IXHEAAC_GET_SIZE_ALIGNED(sizeof(ixheaace_str_esbr_hbe_txposer), BYTE_ALIGN_8) * |
| num_ch); |
| num_bytes += (IXHEAAC_GET_SIZE_ALIGNED(IXHEAACE_MAX_HBE_PERSISTENT_SIZE, BYTE_ALIGN_8) * |
| num_ch); |
| num_bytes += IXHEAAC_GET_SIZE_ALIGNED(ESBR_RESAMP_SAMPLES * sizeof(FLOAT32), BYTE_ALIGN_8); |
| } |
| num_bytes += (IXHEAAC_GET_SIZE_ALIGNED(sizeof(FLOAT32) * 5 * NO_OF_ESTIMATES * |
| MAXIMUM_FREQ_COEFFS, BYTE_ALIGN_8) * num_ch); |
| |
| num_bytes += (IXHEAAC_GET_SIZE_ALIGNED(sizeof(FLOAT32) * MAX_QMF_TIME_SLOTS * |
| IXHEAACE_QMF_CHANNELS, BYTE_ALIGN_8) * num_ch); |
| |
| if (use_ps) { |
| num_bytes += IXHEAAC_GET_SIZE_ALIGNED(sizeof(struct ixheaace_str_enc_channel), BYTE_ALIGN_8); |
| num_bytes += IXHEAAC_GET_SIZE_ALIGNED(sizeof(struct ixheaace_ps_enc), BYTE_ALIGN_8); |
| num_bytes += IXHEAAC_GET_SIZE_ALIGNED(sizeof(FLOAT32) * QMF_FILTER_LENGTH, BYTE_ALIGN_8); |
| |
| num_bytes += IXHEAAC_GET_SIZE_ALIGNED(sizeof(WORD32) * 5 * NO_OF_ESTIMATES * |
| MAXIMUM_FREQ_COEFFS, BYTE_ALIGN_8); |
| |
| /*shared between spectral_band_replication_envYBuffer_fix and IIC IDD PS data buffers*/ |
| num_bytes += IXHEAAC_GET_SIZE_ALIGNED(sizeof(WORD32) * IXHEAACE_QMF_TIME_SLOTS * |
| IXHEAACE_QMF_CHANNELS, BYTE_ALIGN_8); |
| } |
| num_bytes += IXHEAAC_GET_SIZE_ALIGNED(sizeof(ixheaace_str_sbr_qmf_filter_bank), BYTE_ALIGN_8); |
| return num_bytes; |
| } |
| |
| VOID ia_enhaacplus_enc_sbr_set_persist_buf(WORD8 *ptr_base, WORD32 num_ch, WORD32 use_ps, |
| WORD32 harmonic_sbr) { |
| struct ixheaace_str_sbr_enc *pstr_env_enc; |
| WORD8 *ptr_curr_mem = ptr_base + |
| IXHEAAC_GET_SIZE_ALIGNED(sizeof(struct ixheaace_str_sbr_enc), BYTE_ALIGN_8); |
| WORD32 i; |
| |
| pstr_env_enc = (struct ixheaace_str_sbr_enc *)ptr_base; |
| |
| for (i = 0; i < num_ch; i++) { |
| pstr_env_enc->pstr_env_channel[i] = (struct ixheaace_str_enc_channel *)(ptr_curr_mem); |
| ptr_curr_mem = ptr_curr_mem + |
| IXHEAAC_GET_SIZE_ALIGNED(sizeof(struct ixheaace_str_enc_channel), BYTE_ALIGN_8); |
| } |
| |
| for (i = 0; i < num_ch; i++) { |
| pstr_env_enc->pstr_env_channel[i]->str_sbr_qmf.ptr_sbr_qmf_states_ana = |
| (FLOAT32 *)ptr_curr_mem; |
| ptr_curr_mem += IXHEAAC_GET_SIZE_ALIGNED( |
| sizeof(pstr_env_enc->pstr_env_channel[i]->str_sbr_qmf.ptr_sbr_qmf_states_ana[0]) * |
| QMF_FILTER_LENGTH, BYTE_ALIGN_8); |
| } |
| if (!use_ps) { |
| pstr_env_enc->ptr_common_buffer1 = (WORD32 *)ptr_curr_mem; |
| ptr_curr_mem += IXHEAAC_GET_SIZE_ALIGNED(sizeof(pstr_env_enc->ptr_common_buffer1[0]) * |
| num_ch * 5 * NO_OF_ESTIMATES * MAXIMUM_FREQ_COEFFS, BYTE_ALIGN_8); |
| |
| pstr_env_enc->ptr_common_buffer2 = (WORD32 *)ptr_curr_mem; |
| ptr_curr_mem += IXHEAAC_GET_SIZE_ALIGNED(sizeof(pstr_env_enc->ptr_common_buffer2[0]) * |
| num_ch * MAX_QMF_TIME_SLOTS * IXHEAACE_QMF_CHANNELS, BYTE_ALIGN_8); |
| } else { |
| pstr_env_enc->ptr_common_buffer1 = (WORD32 *)ptr_curr_mem; |
| ptr_curr_mem += IXHEAAC_GET_SIZE_ALIGNED(2 * sizeof(pstr_env_enc->ptr_common_buffer1[0]) * |
| 5 * NO_OF_ESTIMATES * MAXIMUM_FREQ_COEFFS, BYTE_ALIGN_8); |
| |
| pstr_env_enc->ptr_common_buffer2 = (WORD32 *)ptr_curr_mem; |
| ptr_curr_mem += IXHEAAC_GET_SIZE_ALIGNED(2 * sizeof(pstr_env_enc->ptr_common_buffer2[0]) * |
| IXHEAACE_QMF_TIME_SLOTS * IXHEAACE_QMF_CHANNELS, BYTE_ALIGN_8); |
| } |
| // PVC encoder |
| pstr_env_enc->pstr_pvc_enc = (ixheaace_pvc_enc *)ptr_curr_mem; |
| ptr_curr_mem = ptr_curr_mem + IXHEAAC_GET_SIZE_ALIGNED(sizeof(ixheaace_pvc_enc), BYTE_ALIGN_8); |
| // Harmonic SBR |
| if (1 == harmonic_sbr) { |
| for (i = 0; i < num_ch; i++) { |
| pstr_env_enc->pstr_env_channel[i]->pstr_hbe_enc = (ixheaace_str_hbe_enc *)ptr_curr_mem; |
| ptr_curr_mem = ptr_curr_mem + |
| IXHEAAC_GET_SIZE_ALIGNED(sizeof(ixheaace_str_hbe_enc), BYTE_ALIGN_8); |
| pstr_env_enc->pstr_env_channel[i]->pstr_hbe_enc->pstr_hbe_txposer = |
| (ixheaace_str_esbr_hbe_txposer *)ptr_curr_mem; |
| ptr_curr_mem = ptr_curr_mem + |
| IXHEAAC_GET_SIZE_ALIGNED(sizeof(ixheaace_str_esbr_hbe_txposer), BYTE_ALIGN_8); |
| pstr_env_enc->pstr_env_channel[i]->pstr_hbe_enc->ptr_hbe_txposer_buffers = |
| (VOID *)ptr_curr_mem; |
| ptr_curr_mem = ptr_curr_mem + IXHEAACE_MAX_HBE_PERSISTENT_SIZE; |
| } |
| pstr_env_enc->ptr_hbe_resample_buf = (FLOAT32 *)ptr_curr_mem; |
| ptr_curr_mem = ptr_curr_mem + IXHEAAC_GET_SIZE_ALIGNED( |
| (ESBR_RESAMP_SAMPLES * sizeof(pstr_env_enc->ptr_hbe_resample_buf[0])), BYTE_ALIGN_8); |
| } |
| if (use_ps) { |
| pstr_env_enc->pstr_env_channel[1] = (struct ixheaace_str_enc_channel *)(ptr_curr_mem); |
| ptr_curr_mem = ptr_curr_mem + |
| IXHEAAC_GET_SIZE_ALIGNED(sizeof(struct ixheaace_str_enc_channel), BYTE_ALIGN_8); |
| memset(pstr_env_enc->pstr_env_channel[1], 0, sizeof(struct ixheaace_str_enc_channel)); |
| |
| pstr_env_enc->pstr_env_channel[1]->str_sbr_qmf.ptr_sbr_qmf_states_ana = |
| (FLOAT32 *)ptr_curr_mem; |
| ptr_curr_mem += IXHEAAC_GET_SIZE_ALIGNED( |
| sizeof(pstr_env_enc->pstr_env_channel[1]->str_sbr_qmf.ptr_sbr_qmf_states_ana[0]) * |
| QMF_FILTER_LENGTH, BYTE_ALIGN_8); |
| memset(pstr_env_enc->pstr_env_channel[1]->str_sbr_qmf.ptr_sbr_qmf_states_ana, 0, |
| sizeof(pstr_env_enc->pstr_env_channel[1]->str_sbr_qmf.ptr_sbr_qmf_states_ana[0]) * |
| QMF_FILTER_LENGTH); |
| |
| pstr_env_enc->pstr_ps_enc = (struct ixheaace_ps_enc *)(ptr_curr_mem); |
| ptr_curr_mem = ptr_curr_mem + |
| IXHEAAC_GET_SIZE_ALIGNED(sizeof(struct ixheaace_ps_enc), BYTE_ALIGN_8); |
| memset(pstr_env_enc->pstr_ps_enc, 0, sizeof(struct ixheaace_ps_enc)); |
| } |
| pstr_env_enc->pstr_synthesis_qmf_bank = (ixheaace_str_sbr_qmf_filter_bank *)(ptr_curr_mem); |
| memset(pstr_env_enc->pstr_synthesis_qmf_bank, 0, sizeof(ixheaace_str_sbr_qmf_filter_bank)); |
| |
| pstr_env_enc->pstr_synthesis_qmf_bank->ptr_sbr_qmf_states_ana = NULL; |
| } |
| |
| IA_ERRORCODE |
| ixheaace_env_open(ixheaace_pstr_sbr_enc *pstr_env_encoder, ixheaace_pstr_sbr_cfg params, |
| WORD32 *ptr_core_bw, WORD8 *ptr_sbr_scratch, |
| ixheaace_str_sbr_tabs *pstr_sbr_tab, |
| ixheaace_pstr_sbr_hdr_data *pstr_sbr_config) { |
| ixheaace_pstr_sbr_enc pstr_env_enc; |
| WORD32 ch; |
| IA_ERRORCODE err_code = IA_NO_ERROR; |
| |
| pstr_env_enc = *pstr_env_encoder; |
| |
| memset(pstr_env_enc, 0, sizeof(struct ixheaace_str_sbr_enc)); |
| |
| *pstr_sbr_config = &pstr_env_enc->str_sbr_hdr; |
| |
| ixheaace_sbr_set_scratch_ptr(pstr_env_enc, ptr_sbr_scratch); |
| |
| ia_enhaacplus_enc_sbr_set_persist_buf((WORD8 *)pstr_env_enc, |
| params->codec_settings.num_channels, params->use_ps, |
| params->sbr_harmonic); |
| |
| if ((params->codec_settings.num_channels < 1) || |
| (params->codec_settings.num_channels > IXHEAACE_MAX_CH_IN_BS_ELE)) { |
| return IA_EXHEAACE_INIT_FATAL_SBR_INVALID_NUM_CHANNELS; |
| } |
| |
| pstr_env_enc->str_sbr_cfg.ptr_freq_band_tab[LO] = |
| pstr_env_enc->str_sbr_cfg.sbr_freq_band_tab_lo; |
| |
| memset( |
| pstr_env_enc->str_sbr_cfg.ptr_freq_band_tab[LO], 0, |
| sizeof(pstr_env_enc->str_sbr_cfg.ptr_freq_band_tab[LO][0]) * (MAXIMUM_FREQ_COEFFS / 2 + 1)); |
| |
| pstr_env_enc->str_sbr_cfg.ptr_freq_band_tab[HI] = |
| pstr_env_enc->str_sbr_cfg.sbr_freq_band_tab_hi; |
| |
| memset(pstr_env_enc->str_sbr_cfg.ptr_freq_band_tab[HI], 0, |
| sizeof(pstr_env_enc->str_sbr_cfg.ptr_freq_band_tab[HI][0]) * (MAXIMUM_FREQ_COEFFS + 1)); |
| |
| pstr_env_enc->str_sbr_cfg.ptr_v_k_master = pstr_env_enc->str_sbr_cfg.sbr_v_k_master; |
| |
| memset(pstr_env_enc->str_sbr_cfg.ptr_v_k_master, 0, |
| sizeof(pstr_env_enc->str_sbr_cfg.ptr_v_k_master[0]) * (MAXIMUM_FREQ_COEFFS + 1)); |
| |
| ia_enhaacplus_enc_create_bitbuffer(&pstr_env_enc->str_cmon_data.str_sbr_bit_buf, |
| (UWORD8 *)pstr_env_enc->sbr_payload, |
| sizeof(pstr_env_enc->sbr_payload)); |
| |
| pstr_env_enc->str_cmon_data.prev_bit_buf_read_offset = 0; |
| pstr_env_enc->str_cmon_data.prev_bit_buf_write_offset = 0; |
| |
| ia_enhaacplus_enc_create_bitbuffer(&pstr_env_enc->str_cmon_data.str_sbr_bit_buf_prev, |
| (UWORD8 *)pstr_env_enc->sbr_payload_prev, |
| sizeof(pstr_env_enc->sbr_payload)); |
| |
| pstr_env_enc->str_cmon_data.str_sbr_bit_buf_prev.ptr_read_next = |
| pstr_env_enc->str_cmon_data.str_sbr_bit_buf_prev.ptr_bit_buf_base + |
| pstr_env_enc->str_cmon_data.prev_bit_buf_read_offset; |
| pstr_env_enc->str_cmon_data.str_sbr_bit_buf_prev.ptr_write_next = |
| pstr_env_enc->str_cmon_data.str_sbr_bit_buf_prev.ptr_bit_buf_base + |
| pstr_env_enc->str_cmon_data.prev_bit_buf_write_offset; |
| |
| pstr_env_enc->str_sbr_cfg.num_ch = params->codec_settings.num_channels; |
| pstr_env_enc->str_sbr_cfg.is_ld_sbr = params->is_ld_sbr; |
| pstr_env_enc->str_sbr_cfg.sbr_codec = params->sbr_codec; |
| pstr_env_enc->str_sbr_cfg.is_esbr = params->is_esbr; |
| if (pstr_env_enc->str_sbr_cfg.sbr_codec == USAC_SBR) { |
| pstr_env_enc->str_sbr_cfg.sbr_ratio_idx = params->sbr_ratio_idx; |
| } |
| pstr_env_enc->str_sbr_cfg.stereo_mode = |
| (params->codec_settings.num_channels == 2) ? params->stereo_mode : IXHEAACE_SBR_MODE_MONO; |
| |
| if (params->codec_settings.sample_freq <= 24000) { |
| pstr_env_enc->str_sbr_hdr.sample_rate_mode = IXHEAACE_DUAL_RATE; |
| if (params->sbr_codec == USAC_SBR) { |
| pstr_env_enc->str_sbr_cfg.sample_freq = 2 * params->codec_settings.sample_freq; |
| if (USAC_SBR_RATIO_INDEX_4_1 == params->sbr_ratio_idx) { |
| pstr_env_enc->str_sbr_cfg.sample_freq = 4 * params->codec_settings.sample_freq; |
| pstr_env_enc->str_sbr_hdr.sample_rate_mode = IXHEAACE_QUAD_RATE; |
| } |
| } else { |
| pstr_env_enc->str_sbr_cfg.sample_freq = 2 * params->codec_settings.sample_freq; |
| } |
| } else { |
| pstr_env_enc->str_sbr_hdr.sample_rate_mode = IXHEAACE_SINGLE_RATE; |
| pstr_env_enc->str_sbr_cfg.sample_freq = params->codec_settings.sample_freq; |
| } |
| if (params->is_ld_sbr) { |
| pstr_env_enc->str_sbr_bs.count_send_header_data = -1; |
| } else { |
| pstr_env_enc->str_sbr_bs.count_send_header_data = 0; |
| } |
| if (params->send_header_data_time > 0) { |
| pstr_env_enc->str_sbr_bs.nr_send_header_data = (WORD32)( |
| params->send_header_data_time * 0.001 * pstr_env_enc->str_sbr_cfg.sample_freq / 2048); |
| |
| pstr_env_enc->str_sbr_bs.nr_send_header_data = |
| ixheaac_max32(pstr_env_enc->str_sbr_bs.nr_send_header_data, 1); |
| } else { |
| pstr_env_enc->str_sbr_bs.nr_send_header_data = 0; |
| } |
| |
| pstr_env_enc->str_sbr_hdr.sbr_data_extra = params->sbr_data_extra; |
| pstr_env_enc->str_sbr_bs.crc_active = params->crc_sbr; |
| pstr_env_enc->str_sbr_bs.header_active = 0; |
| pstr_env_enc->str_sbr_hdr.sbr_start_freq = params->start_freq; |
| pstr_env_enc->str_sbr_hdr.sbr_stop_freq = params->stop_freq; |
| pstr_env_enc->str_sbr_hdr.sbr_xover_band = 0; |
| |
| if (params->sbr_xpos_ctrl != SBR_XPOS_CTRL_DEFAULT) { |
| pstr_env_enc->str_sbr_hdr.sbr_data_extra = 1; |
| } |
| |
| pstr_env_enc->str_sbr_hdr.protocol_version = SI_SBR_PROTOCOL_VERSION_ID; |
| |
| pstr_env_enc->str_sbr_hdr.sbr_amp_res = (ixheaace_amp_res)params->amp_res; |
| |
| pstr_env_enc->str_sbr_hdr.freq_scale = params->freq_scale; |
| pstr_env_enc->str_sbr_hdr.alter_scale = params->alter_scale; |
| pstr_env_enc->str_sbr_hdr.sbr_noise_bands = params->sbr_noise_bands; |
| pstr_env_enc->str_sbr_hdr.header_extra_1 = 0; |
| |
| if ((params->freq_scale != SBR_FREQ_SCALE_DEFAULT) || |
| (params->alter_scale != SBR_ALTER_SCALE_DEFAULT) || |
| (params->sbr_noise_bands != SBR_NOISE_BANDS_DEFAULT)) { |
| pstr_env_enc->str_sbr_hdr.header_extra_1 = 1; |
| } |
| |
| pstr_env_enc->str_sbr_hdr.sbr_limiter_bands = params->sbr_limiter_bands; |
| pstr_env_enc->str_sbr_hdr.sbr_limiter_gains = params->sbr_limiter_gains; |
| pstr_env_enc->str_sbr_hdr.sbr_interpol_freq = params->sbr_interpol_freq; |
| pstr_env_enc->str_sbr_hdr.sbr_smoothing_length = params->sbr_smoothing_length; |
| pstr_env_enc->str_sbr_hdr.header_extra_2 = 0; |
| |
| if ((params->sbr_limiter_bands != SBR_LIMITER_BANDS_DEFAULT) || |
| (params->sbr_limiter_gains != SBR_LIMITER_GAINS_DEFAULT) || |
| (params->sbr_interpol_freq != SBR_INTERPOL_FREQ_DEFAULT) || |
| (params->sbr_smoothing_length != SBR_SMOOTHING_LENGTH_DEFAULT)) { |
| pstr_env_enc->str_sbr_hdr.header_extra_2 = 1; |
| } |
| pstr_env_enc->str_sbr_hdr.sbr_harmonic = params->sbr_harmonic; |
| pstr_env_enc->str_sbr_hdr.sbr_pvc_active = params->sbr_pvc_active; |
| pstr_env_enc->str_sbr_hdr.hq_esbr = params->hq_esbr; |
| |
| pstr_env_enc->str_sbr_cfg.detect_missing_harmonics = params->detect_missing_harmonics; |
| pstr_env_enc->str_sbr_cfg.use_parametric_coding = params->parametric_coding; |
| |
| err_code = ia_enhaacplus_enc_update_freq_band_tab( |
| &pstr_env_enc->str_sbr_cfg, &pstr_env_enc->str_sbr_hdr, IXHEAACE_QMF_CHANNELS); |
| if (err_code) { |
| return err_code; |
| } |
| ch = 0; |
| while (ch < pstr_env_enc->str_sbr_cfg.num_ch) { |
| FLOAT32 *ptr_sbr_env_r_buf = &pstr_env_enc->ptr_sbr_enc_scr->sbr_env_r_buf[0]; |
| FLOAT32 *ptr_sbr_env_i_buf = &pstr_env_enc->ptr_sbr_enc_scr->sbr_env_i_buf[0]; |
| if (!params->use_ps) { |
| ptr_sbr_env_r_buf = &pstr_env_enc->ptr_sbr_enc_scr->sbr_env_r_buffer[0]; |
| ptr_sbr_env_i_buf = &pstr_env_enc->ptr_sbr_enc_scr->sbr_env_i_buffer[0]; |
| } |
| |
| err_code = ixheaace_create_env_channel( |
| ch, &pstr_env_enc->str_sbr_cfg, &pstr_env_enc->str_sbr_hdr, |
| pstr_env_enc->pstr_env_channel[ch], params, pstr_env_enc->ptr_common_buffer1, |
| pstr_env_enc->ptr_common_buffer2, ptr_sbr_env_r_buf, ptr_sbr_env_i_buf, pstr_sbr_tab); |
| if (err_code) { |
| return err_code; |
| } |
| ch++; |
| } |
| |
| if (params->use_ps) { |
| err_code = ixheaace_create_env_channel( |
| 1, &pstr_env_enc->str_sbr_cfg, &pstr_env_enc->str_sbr_hdr, |
| pstr_env_enc->pstr_env_channel[1], params, pstr_env_enc->ptr_common_buffer1, |
| pstr_env_enc->ptr_common_buffer2, pstr_env_enc->ptr_sbr_enc_scr->sbr_env_r_buf, |
| pstr_env_enc->ptr_sbr_enc_scr->sbr_env_i_buf, pstr_sbr_tab); |
| if (err_code) { |
| return err_code; |
| } |
| |
| ixheaace_create_synthesis_qmf_bank(pstr_env_enc->pstr_synthesis_qmf_bank, |
| pstr_env_enc->ptr_common_buffer1, pstr_sbr_tab); |
| |
| err_code = ixheaace_create_ps_enc(pstr_env_enc->pstr_ps_enc, params->ps_mode, |
| (FLOAT32 *)pstr_env_enc->ptr_common_buffer1, |
| (FLOAT32 *)pstr_env_enc->ptr_common_buffer2, |
| (FLOAT32 *)pstr_env_enc->ptr_sbr_enc_scr->ps_buf3); |
| if (err_code) { |
| return err_code; |
| } |
| } |
| |
| pstr_env_enc->str_cmon_data.sbr_num_channels = pstr_env_enc->str_sbr_cfg.num_ch; |
| if (USAC_SBR == params->sbr_codec) { |
| ixheaace_pvc_enc_init(pstr_env_enc->pstr_pvc_enc, params->sbr_pvc_rate); |
| } |
| *pstr_env_encoder = pstr_env_enc; |
| *ptr_core_bw = pstr_env_enc->str_sbr_cfg.xover_freq; |
| |
| return err_code; |
| } |
