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/******************************************************************************
* *
* 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
*/
#pragma once
typedef struct {
WORD32 window_size_samples[MAX_TIME_CHANNELS];
WORD32 usac_independency_flag_interval;
WORD32 usac_independency_flag_count;
WORD32 usac_independency_flag;
WORD32 frame_count;
WORD32 core_mode[MAX_TIME_CHANNELS];
WORD32 core_mode_prev[MAX_TIME_CHANNELS];
WORD32 core_mode_prev_copy[MAX_TIME_CHANNELS];
WORD32 core_mode_next[MAX_TIME_CHANNELS];
WORD32 core_mode_copy[MAX_TIME_CHANNELS];
ia_block_switch_ctrl block_switch_ctrl[MAX_TIME_CHANNELS];
ia_classification_struct str_sig_class_data;
FLOAT32 td_in_buf[MAX_TIME_CHANNELS][LEN_SUPERFRAME + LEN_NEXT_HIGH_RATE];
FLOAT32 td_in_prev_buf[MAX_TIME_CHANNELS][LEN_SUPERFRAME + LEN_NEXT_HIGH_RATE + LEN_LPC0];
FLOAT32 speech_buf[LEN_TOTAL_HIGH_RATE + LEN_LPC0];
FLOAT32 synth_buf[ORDER + LEN_SUPERFRAME];
WORD32 param_buf[(NUM_FRAMES * MAX_NUM_TCX_PRM_PER_DIV) + NUM_LPC_PRM];
ia_usac_td_encoder_struct *td_encoder[MAX_TIME_CHANNELS];
WORD32 total_nbbits[MAX_TIME_CHANNELS];
WORD32 FD_nbbits_fac[MAX_TIME_CHANNELS];
WORD32 num_td_fac_bits[MAX_TIME_CHANNELS];
WORD32 td_bitrate[MAX_TIME_CHANNELS];
WORD32 acelp_core_mode[MAX_TIME_CHANNELS];
WORD32 max_bitreservoir_bits;
WORD32 available_bitreservoir_bits;
ia_drc_enc_state str_drc_state;
WORD32 num_sbr_bits;
ia_ms_info_struct str_ms_info[MAX_TIME_CHANNELS];
WORD32 pred_coef_re[MAX_TIME_CHANNELS][MAX_SHORT_WINDOWS][MAX_SFB_LONG],
pred_coef_im[MAX_TIME_CHANNELS][MAX_SHORT_WINDOWS][MAX_SFB_LONG];
WORD32 pred_coef_re_prev[MAX_TIME_CHANNELS][MAX_SFB_LONG],
pred_coef_im_prev[MAX_TIME_CHANNELS][MAX_SFB_LONG];
/* Temporary buffers for bitstream writing function when computing static bits */
WORD32 temp_pred_coef_re_prev[MAX_TIME_CHANNELS][MAX_SFB_LONG],
temp_pred_coef_im_prev[MAX_TIME_CHANNELS][MAX_SFB_LONG];
WORD32 pred_dir_idx[MAX_TIME_CHANNELS];
WORD32 cplx_pred_all[MAX_TIME_CHANNELS];
WORD32 cplx_pred_used[MAX_TIME_CHANNELS][MAX_SHORT_WINDOWS][MAX_SFB_LONG];
WORD32 delta_code_time[MAX_TIME_CHANNELS];
WORD32 complex_coef[MAX_TIME_CHANNELS];
FLOAT64 *ptr_dmx_re_save[MAX_TIME_CHANNELS]; /*For saving previous frame MDCT down-mix */
FLOAT64 *ptr_dmx_im[MAX_TIME_CHANNELS];
FLOAT64 arr_dmx_im[MAX_TIME_CHANNELS][(FRAME_LEN_LONG + FRAME_LEN_LONG / 8)];
FLOAT64 arr_dmx_save_float[MAX_TIME_CHANNELS][(FRAME_LEN_LONG + FRAME_LEN_LONG / 8)];
FLOAT64 left_chan_save[MAX_TIME_CHANNELS][(FRAME_LEN_LONG + FRAME_LEN_LONG / 8)];
FLOAT64 right_chan_save[MAX_TIME_CHANNELS][(FRAME_LEN_LONG + FRAME_LEN_LONG / 8)];
ia_tns_info *pstr_tns_info[MAX_TIME_CHANNELS];
WORD32 common_window[MAX_TIME_CHANNELS];
WORD32 noise_offset[MAX_TIME_CHANNELS];
WORD32 noise_level[MAX_TIME_CHANNELS];
ia_usac_quant_info_struct str_quant_info[MAX_TIME_CHANNELS];
WORD32 noise_filling[MAX_TIME_CHANNELS];
ia_psy_mod_struct str_psy_mod;
ia_qc_main_struct str_qc_main;
FLOAT64 *ptr_time_data[MAX_TIME_CHANNELS];
FLOAT64 *ptr_look_ahead_time_data[MAX_TIME_CHANNELS];
FLOAT64 *spectral_line_vector[MAX_TIME_CHANNELS];
// Pre-/post- twiddle portions of MDCT use two times ccfl of this buffer, hence size of second
// argument is 2 * pstr_config->ccfl
FLOAT64 mdst_spectrum[MAX_TIME_CHANNELS][2 * FRAME_LEN_LONG];
FLOAT64 *ptr_2frame_time_data[MAX_TIME_CHANNELS];
WORD16 td_serial_out[MAX_TIME_CHANNELS][NBITS_MAX];
WORD16 fac_out_stream[MAX_TIME_CHANNELS][NBITS_MAX];
FLOAT64 overlap_buf[MAX_TIME_CHANNELS][2 * FRAME_LEN_LONG];
WORD32 channel_elem_type[MAX_TIME_CHANNELS];
WORD32 channel_elem_idx[MAX_TIME_CHANNELS];
WORD32 num_ext_elements;
WORD32 ext_type[MAX_EXTENSION_PAYLOADS];
UWORD8 ext_elem_config_payload[MAX_EXTENSION_PAYLOADS][MAX_EXTENSION_PAYLOAD_LEN];
UWORD32 ext_elem_config_len[MAX_EXTENSION_PAYLOADS];
iusace_scratch_mem str_scratch;
WORD32 min_bits_needed;
} ia_usac_data_struct;
typedef struct {
ia_usac_lpd_state_struct lpd_state[6];
ia_usac_lpd_state_struct flpd_state[6];
} ia_usac_lpd_scratch;
IA_ERRORCODE iusace_enc_init(ia_usac_encoder_config_struct *ptr_usac_config,
ixheaace_audio_specific_config_struct *pstr_asc,
ia_usac_data_struct *pstr_state);
IA_ERRORCODE iusace_quantize_spec(ia_sfb_params_struct *pstr_sfb_prms,
WORD32 usac_independancy_flag, WORD32 num_chans,
ia_usac_data_struct *ptr_usac_data,
ia_usac_encoder_config_struct *ptr_usac_config, WORD32 chn,
WORD32 ele_id, WORD32 *is_quant_spec_zero,
WORD32 *is_gain_limited);
IA_ERRORCODE iusace_grouping(ia_sfb_params_struct *pstr_sfb_prms, WORD32 num_chans,
ia_usac_data_struct *ptr_usac_data,
ia_usac_encoder_config_struct *ptr_usac_config, WORD32 chn,
WORD32 ele_id);
IA_ERRORCODE iusace_stereo_proc(ia_sfb_params_struct *pstr_sfb_prms,
WORD32 usac_independancy_flag, ia_usac_data_struct *ptr_usac_data,
ia_usac_encoder_config_struct *ptr_usac_config, WORD32 chn);
VOID iusace_classification(ia_classification_struct *pstr_sig_class,
iusace_scratch_mem *pstr_scratch, WORD32 ccfl);
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