/******************************************************************************

 *                                                                            *

 * Copyright (C) 2018 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at:

 *

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 *

 *****************************************************************************

 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore

*/

#include <string.h>

#include "ixheaacd_sbr_common.h"

#include "ixheaac_type_def.h"

#include "ixheaac_constants.h"

#include "ixheaac_basic_ops32.h"

#include "ixheaac_basic_ops16.h"

#include "ixheaac_basic_ops40.h"

#include "ixheaac_basic_ops.h"

#include "ixheaacd_defines.h"

#include "ixheaacd_intrinsics.h"

#include "ixheaac_sbr_const.h"

#include "ixheaac_basic_op.h"

#include "ixheaacd_defines.h"

#include "ixheaacd_bitbuffer.h"

#include "ixheaacd_pns.h"

#include "ixheaacd_aac_rom.h"

#include "ixheaacd_pulsedata.h"

#include "ixheaacd_drc_data_struct.h"

#include "ixheaacd_lt_predict.h"

#include "ixheaacd_cnst.h"

#include "ixheaacd_ec_defines.h"

#include "ixheaacd_ec_struct_def.h"

#include "ixheaacd_channelinfo.h"

#include "ixheaacd_drc_dec.h"

#include "ixheaacd_sbrdecoder.h"

#include "ixheaacd_sbrdecsettings.h"

#include "ixheaacd_sbr_scale.h"

#include "ixheaacd_lpp_tran.h"

#include "ixheaacd_env_extr_part.h"

#include "ixheaacd_sbr_rom.h"

#include "ixheaacd_hybrid.h"

#include "ixheaacd_ps_dec.h"

#include "ixheaacd_ps_bitdec.h"

#include "ixheaacd_env_extr.h"

#include "ixheaacd_common_rom.h"

#include "ixheaacd_freq_sca.h"

#include "ixheaacd_qmf_dec.h"

#include "ixheaacd_env_calc.h"

#include "ixheaacd_pvc_dec.h"

#include "ixheaacd_sbr_dec.h"

#include "ixheaacd_env_dec.h"

#include "ixheaacd_basic_funcs.h"

#include "ixheaacd_sbr_crc.h"

#include "ixheaacd_sbrqmftrans.h"

#include "ixheaacd_audioobjtypes.h"

extern const WORD32 ixheaacd_ldmps_polyphase_filter_coeff_fix[1280];

#define ALIGN_SIZE64(x) ((((x) + 7) >> 3) << 3)

#define FD_OVERSAMPLING_FAC (1.5f)

WORD32 ixheaacd_getsize_sbr_persistent() {

  return (IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_sbr_pers_struct), BYTE_ALIGN_8));

}

VOID ixheaacd_esbr_hbe_data_init(

    ia_esbr_hbe_txposer_struct *pstr_esbr_hbe_txposer,

    const WORD32 num_aac_samples, WORD32 samp_fac_4_flag,

    const WORD32 num_out_samples, VOID *persistent_hbe_mem,

    WORD32 *total_persistant) {

  WORD32 i;

  WORD32 used_persistent = 0;

  if (pstr_esbr_hbe_txposer) {

    memset(pstr_esbr_hbe_txposer, 0,

           IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_esbr_hbe_txposer_struct), BYTE_ALIGN_8));

    pstr_esbr_hbe_txposer->core_frame_length = num_aac_samples;

    pstr_esbr_hbe_txposer->no_bins = num_out_samples / NO_QMF_SYNTH_CHANNELS;

    pstr_esbr_hbe_txposer->hbe_qmf_in_len =

        pstr_esbr_hbe_txposer->no_bins;

    pstr_esbr_hbe_txposer->hbe_qmf_out_len =

        2 * pstr_esbr_hbe_txposer->hbe_qmf_in_len;

    pstr_esbr_hbe_txposer->ptr_input_buf =

        (FLOAT32 *)((WORD8 *)persistent_hbe_mem);

    used_persistent +=

        (num_aac_samples + NO_QMF_SYNTH_CHANNELS) * sizeof(FLOAT32);

    pstr_esbr_hbe_txposer->qmf_in_buf =

        (FLOAT32 **)((WORD8 *)persistent_hbe_mem + used_persistent);

    used_persistent +=

        pstr_esbr_hbe_txposer->hbe_qmf_in_len * sizeof(FLOAT32 *);

    for (i = 0; i < pstr_esbr_hbe_txposer->hbe_qmf_in_len; i++) {

      pstr_esbr_hbe_txposer->qmf_in_buf[i] =

          (FLOAT32 *)((WORD8 *)persistent_hbe_mem + used_persistent);

      used_persistent += (TWICE_QMF_SYNTH_CHANNELS_NUM * sizeof(FLOAT32));

    }

    pstr_esbr_hbe_txposer->qmf_out_buf =

        (FLOAT32 **)((WORD8 *)persistent_hbe_mem + used_persistent);

    used_persistent +=

        (pstr_esbr_hbe_txposer->hbe_qmf_out_len * sizeof(FLOAT32 *));

    for (i = 0; i < pstr_esbr_hbe_txposer->hbe_qmf_out_len; i++) {

      pstr_esbr_hbe_txposer->qmf_out_buf[i] =

          (FLOAT32 *)((WORD8 *)persistent_hbe_mem + used_persistent);

      used_persistent += (TWICE_QMF_SYNTH_CHANNELS_NUM * sizeof(FLOAT32));

    }

    pstr_esbr_hbe_txposer->upsamp_4_flag = samp_fac_4_flag;

    if (pstr_esbr_hbe_txposer) {

      pstr_esbr_hbe_txposer->fft_size[0] = num_aac_samples;

      pstr_esbr_hbe_txposer->fft_size[1] = (WORD32)(FD_OVERSAMPLING_FAC * num_aac_samples);

      pstr_esbr_hbe_txposer->ptr_spectrum = &pstr_esbr_hbe_txposer->spectrum_buf[0];

      pstr_esbr_hbe_txposer->ptr_spectrum_tx =

          &pstr_esbr_hbe_txposer->spectrum_transposed_buf[0];

      pstr_esbr_hbe_txposer->mag = &pstr_esbr_hbe_txposer->mag_buf[0];

      pstr_esbr_hbe_txposer->phase = &pstr_esbr_hbe_txposer->phase_buf[0];

      pstr_esbr_hbe_txposer->ptr_output_buf = &pstr_esbr_hbe_txposer->output_buf[0];

    }

  }

  *total_persistant = used_persistent;

  return;

}

VOID ixheaacd_set_sbr_persistent_table_pointer(

    VOID *sbr_persistent_mem_v, ia_sbr_tables_struct *sbr_tables_ptr,

    ixheaacd_misc_tables *pstr_common_tables) {

  ia_sbr_pers_struct *sbr_persistent_mem =

      (ia_sbr_pers_struct *)sbr_persistent_mem_v;

  sbr_persistent_mem->str_sbr_dec_inst.pstr_sbr_tables = sbr_tables_ptr;

  sbr_persistent_mem->str_sbr_dec_inst.pstr_common_tables = pstr_common_tables;

}

VOID ixheaacd_set_sbr_persistent_buffers(VOID *sbr_persistent_mem_v,

                                         WORD32 *persistent_used,

                                         WORD32 num_channel, WORD ps_enable) {

  WORD32 i = 0;

  WORD32 used_persistent = *persistent_used;

  WORD32 temp, temp1, temp2, temp3;

  struct ia_sbr_pers_struct *sbr_persistent_mem =

      (struct ia_sbr_pers_struct *)sbr_persistent_mem_v;

  struct ia_sbr_dec_inst_struct *p_str_sbr_dec_inst =

      &sbr_persistent_mem->str_sbr_dec_inst;

  num_channel = max(2, num_channel);

  memset(sbr_persistent_mem, 0,

         IXHEAAC_GET_SIZE_ALIGNED(sizeof(struct ia_sbr_pers_struct), BYTE_ALIGN_8));

  sbr_persistent_mem->sbr_qmf_analy_states =

      (WORD16 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

  temp = num_channel *

         IXHEAAC_GET_SIZE_ALIGNED((QMF_FILTER_STATE_ANA_SIZE + 2 * NO_ANALYSIS_CHANNELS) *

                                      sizeof(sbr_persistent_mem->sbr_qmf_analy_states[0]),

                                  BYTE_ALIGN_8);

  used_persistent += temp;

  sbr_persistent_mem->sbr_qmf_analy_states_32 =

      (WORD32 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

  temp1 = num_channel *

          IXHEAAC_GET_SIZE_ALIGNED((QMF_FILTER_STATE_ANA_SIZE + 2 * NO_ANALYSIS_CHANNELS) *

                                       sizeof(sbr_persistent_mem->sbr_qmf_analy_states_32[0]),

                                   BYTE_ALIGN_8);

  used_persistent += temp1;

  sbr_persistent_mem->sbr_qmf_synth_states =

      (WORD16 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

  temp2 = (num_channel *

           IXHEAAC_GET_SIZE_ALIGNED((QMF_FILTER_STATE_SYN_SIZE + 2 * NO_SYNTHESIS_CHANNELS) *

                                        sizeof(sbr_persistent_mem->sbr_qmf_synth_states[0]),

                                    BYTE_ALIGN_8));

  used_persistent += temp2;

  sbr_persistent_mem->sbr_qmf_synth_states_32 =

      (WORD32 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

  temp3 = (num_channel *

           IXHEAAC_GET_SIZE_ALIGNED((QMF_FILTER_STATE_SYN_SIZE + 2 * NO_SYNTHESIS_CHANNELS) *

                                        sizeof(sbr_persistent_mem->sbr_qmf_synth_states_32[0]),

                                    BYTE_ALIGN_8));

  used_persistent += temp3;

  memset(sbr_persistent_mem->sbr_qmf_analy_states, 0,

         (temp + temp1 + temp2 + temp3));

  for (i = 0; i < num_channel; i++) {

    sbr_persistent_mem->ptr_sbr_overlap_buf[i] =

        (WORD32 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

    if (ps_enable) {

      memset(

          sbr_persistent_mem->ptr_sbr_overlap_buf[i], 0,

          2 * IXHEAAC_GET_SIZE_ALIGNED(MAX_OV_COLS * NO_SYNTHESIS_CHANNELS *

                                           sizeof(sbr_persistent_mem->ptr_sbr_overlap_buf[i][0]),

                                       BYTE_ALIGN_8));

      used_persistent +=

          2 * IXHEAAC_GET_SIZE_ALIGNED(MAX_OV_COLS * NO_SYNTHESIS_CHANNELS *

                                           sizeof(sbr_persistent_mem->ptr_sbr_overlap_buf[i][0]),

                                       BYTE_ALIGN_8);

    } else {

      memset(sbr_persistent_mem->ptr_sbr_overlap_buf[i], 0,

             IXHEAAC_GET_SIZE_ALIGNED(MAX_OV_COLS * NO_SYNTHESIS_CHANNELS *

                                          sizeof(sbr_persistent_mem->ptr_sbr_overlap_buf[i][0]),

                                      BYTE_ALIGN_8));

      used_persistent +=

          IXHEAAC_GET_SIZE_ALIGNED(MAX_OV_COLS * NO_SYNTHESIS_CHANNELS *

                                       sizeof(sbr_persistent_mem->ptr_sbr_overlap_buf[i][0]),

                                   BYTE_ALIGN_8);

    }

  }

  for (i = 0; i < num_channel; i++) {

    WORD32 j;

    sbr_persistent_mem->sbr_lpc_filter_states_real[i] =

        (WORD32 **)((WORD8 *)sbr_persistent_mem_v + used_persistent);

    used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

        LPC_ORDER * sizeof(sbr_persistent_mem->sbr_lpc_filter_states_real[i][0]), BYTE_ALIGN_8);

    for (j = 0; j < LPC_ORDER; j++) {

      sbr_persistent_mem->sbr_lpc_filter_states_real[i][j] =

          (WORD32 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

      used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

          NO_ANALYSIS_CHANNELS * sizeof(sbr_persistent_mem->sbr_lpc_filter_states_real[i][j][0]),

          BYTE_ALIGN_8);

      memset(sbr_persistent_mem->sbr_lpc_filter_states_real[i][j], 0,

             IXHEAAC_GET_SIZE_ALIGNED(

                 NO_ANALYSIS_CHANNELS *

                     sizeof(sbr_persistent_mem->sbr_lpc_filter_states_real[i][j][0]),

                 BYTE_ALIGN_8));

    }

  }

  if (ps_enable) {

    for (i = 0; i < num_channel; i++) {

      WORD32 j;

      sbr_persistent_mem->sbr_lpc_filter_states_imag[i] =

          (WORD32 **)((WORD8 *)sbr_persistent_mem_v + used_persistent);

      used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

          LPC_ORDER * sizeof(sbr_persistent_mem->sbr_lpc_filter_states_imag[i][0]), BYTE_ALIGN_8);

      for (j = 0; j < LPC_ORDER; j++) {

        sbr_persistent_mem->sbr_lpc_filter_states_imag[i][j] =

            (WORD32 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

        used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

            NO_ANALYSIS_CHANNELS *

                sizeof(sbr_persistent_mem->sbr_lpc_filter_states_imag[i][j][0]),

            BYTE_ALIGN_8);

        memset(sbr_persistent_mem->sbr_lpc_filter_states_imag[i][j], 0,

               IXHEAAC_GET_SIZE_ALIGNED(

                   NO_ANALYSIS_CHANNELS *

                       sizeof(sbr_persistent_mem->sbr_lpc_filter_states_imag[i][j][0]),

                   BYTE_ALIGN_8));

      }

    }

  }

  for (i = 0; i < num_channel; i++) {

    WORD32 initial_used = used_persistent;

    WORD32 temp_used = used_persistent;

    sbr_persistent_mem->sbr_smooth_gain_buf[i] =

        (WORD16 *)((WORD8 *)sbr_persistent_mem_v + temp_used);

    temp_used += 2 * IXHEAAC_GET_SIZE_ALIGNED(

                         MAX_FREQ_COEFFS * sizeof(sbr_persistent_mem->sbr_smooth_gain_buf[i][0]),

                         BYTE_ALIGN_8);

    sbr_persistent_mem->sbr_smooth_noise_buf[i] =

        (WORD16 *)((WORD8 *)sbr_persistent_mem_v + temp_used);

    temp_used += IXHEAAC_GET_SIZE_ALIGNED(

        MAX_FREQ_COEFFS * sizeof(sbr_persistent_mem->sbr_smooth_noise_buf[i][0]), BYTE_ALIGN_8);

    p_str_sbr_dec_inst->pstr_freq_band_data[i] =

        (VOID *)((WORD8 *)sbr_persistent_mem_v + temp_used);

    temp_used += IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_freq_band_data_struct), BYTE_ALIGN_8);

    sbr_persistent_mem->pstr_prev_frame_data[i] =

        (VOID *)((WORD8 *)sbr_persistent_mem_v + temp_used);

    temp_used += IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_sbr_prev_frame_data_struct), BYTE_ALIGN_8);

    p_str_sbr_dec_inst->pstr_sbr_channel[i] =

        (VOID *)((WORD8 *)sbr_persistent_mem_v + temp_used);

    temp_used += IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_sbr_channel_struct), BYTE_ALIGN_8);

    p_str_sbr_dec_inst->pstr_sbr_header[i] =

        (VOID *)((WORD8 *)sbr_persistent_mem_v + temp_used);

    temp_used += IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_sbr_header_data_struct), BYTE_ALIGN_8);

    memset(sbr_persistent_mem->sbr_smooth_gain_buf[i], 0,

           temp_used - initial_used);

    used_persistent = temp_used;

  }

  if (ps_enable) {

    p_str_sbr_dec_inst->pstr_ps_stereo_dec =

        (ia_ps_dec_struct *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

    memset(p_str_sbr_dec_inst->pstr_ps_stereo_dec, 0,

           IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_ps_dec_struct), BYTE_ALIGN_8));

    used_persistent += IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_ps_dec_struct), BYTE_ALIGN_8);

  }

  p_str_sbr_dec_inst->frame_buffer[0] =

      (VOID *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

  memset(p_str_sbr_dec_inst->frame_buffer[0], 0,

         IXHEAAC_GET_SIZE_ALIGNED(

             sizeof(ia_sbr_frame_info_data_struct) + MAX_FREQ_COEFFS * sizeof(WORD32) * 2 + 8,

             BYTE_ALIGN_8));

  used_persistent =

      used_persistent + IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_sbr_frame_info_data_struct) +

                                                     MAX_FREQ_COEFFS * sizeof(WORD32) + 8,

                                                 BYTE_ALIGN_8);

  p_str_sbr_dec_inst->frame_buffer[1] =

      (VOID *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

  memset(p_str_sbr_dec_inst->frame_buffer[1], 0,

         IXHEAAC_GET_SIZE_ALIGNED(

             sizeof(ia_sbr_frame_info_data_struct) + MAX_FREQ_COEFFS * sizeof(WORD32) * 2 + 8,

             BYTE_ALIGN_8));

  used_persistent =

      used_persistent + IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_sbr_frame_info_data_struct) +

                                                     MAX_FREQ_COEFFS * sizeof(WORD32) + 8,

                                                 BYTE_ALIGN_8);

  {

    WORD32 index = 0;

    p_str_sbr_dec_inst->ptr_pvc_data_str =

        (ia_pvc_data_struct *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

    memset(p_str_sbr_dec_inst->ptr_pvc_data_str, 0,

           IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_pvc_data_struct), BYTE_ALIGN_8));

    used_persistent += IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_pvc_data_struct), BYTE_ALIGN_8);

    p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.p_hbe_txposer =

        (ia_esbr_hbe_txposer_struct *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

    memset(p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.p_hbe_txposer, 0,

           IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_esbr_hbe_txposer_struct), BYTE_ALIGN_8));

    used_persistent += IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_esbr_hbe_txposer_struct), BYTE_ALIGN_8);

    if (num_channel == 2) {

      p_str_sbr_dec_inst->pstr_sbr_channel[1]->str_sbr_dec.p_hbe_txposer =

          (ia_esbr_hbe_txposer_struct *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

      memset(p_str_sbr_dec_inst->pstr_sbr_channel[1]->str_sbr_dec.p_hbe_txposer, 0,

             IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_esbr_hbe_txposer_struct), BYTE_ALIGN_8));

      used_persistent +=

          IXHEAAC_GET_SIZE_ALIGNED(sizeof(ia_esbr_hbe_txposer_struct), BYTE_ALIGN_8);

    }

    p_str_sbr_dec_inst->hbe_txposer_buffers =

        (VOID *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

    memset(p_str_sbr_dec_inst->hbe_txposer_buffers, 0,

           num_channel * IXHEAAC_GET_SIZE_ALIGNED(MAX_HBE_PERSISTENT_SIZE, BYTE_ALIGN_8));

    used_persistent +=

        num_channel * IXHEAAC_GET_SIZE_ALIGNED(MAX_HBE_PERSISTENT_SIZE, BYTE_ALIGN_8);

    p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.pp_qmf_buf_real =

        (FLOAT32 **)((WORD8 *)sbr_persistent_mem_v + used_persistent);

    memset(

        p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.pp_qmf_buf_real, 0,

        IXHEAAC_GET_SIZE_ALIGNED(

            MAX_QMF_BUF_LEN *

                sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.pp_qmf_buf_real[0]),

            BYTE_ALIGN_8));

    used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

        MAX_QMF_BUF_LEN *

            sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.pp_qmf_buf_real[0]),

        BYTE_ALIGN_8);

    p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.pp_qmf_buf_imag =

        (FLOAT32 **)((WORD8 *)sbr_persistent_mem_v + used_persistent);

    memset(

        p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.pp_qmf_buf_imag, 0,

        IXHEAAC_GET_SIZE_ALIGNED(

            MAX_QMF_BUF_LEN *

                sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.pp_qmf_buf_imag[0]),

            BYTE_ALIGN_8));

    used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

        MAX_QMF_BUF_LEN *

            sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.pp_qmf_buf_imag[0]),

        BYTE_ALIGN_8);

    if (num_channel == 2) {

      p_str_sbr_dec_inst->pstr_sbr_channel[1]->str_sbr_dec.pp_qmf_buf_real =

          (FLOAT32 **)((WORD8 *)sbr_persistent_mem_v + used_persistent);

      memset(

          p_str_sbr_dec_inst->pstr_sbr_channel[1]->str_sbr_dec.pp_qmf_buf_real, 0,

          IXHEAAC_GET_SIZE_ALIGNED(

              MAX_QMF_BUF_LEN *

                  sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[1]->str_sbr_dec.pp_qmf_buf_real[0]),

              BYTE_ALIGN_8));

      used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

          MAX_QMF_BUF_LEN *

              sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[1]->str_sbr_dec.pp_qmf_buf_real[0]),

          BYTE_ALIGN_8);

      p_str_sbr_dec_inst->pstr_sbr_channel[1]->str_sbr_dec.pp_qmf_buf_imag =

          (FLOAT32 **)((WORD8 *)sbr_persistent_mem_v + used_persistent);

      memset(

          p_str_sbr_dec_inst->pstr_sbr_channel[1]->str_sbr_dec.pp_qmf_buf_imag, 0,

          IXHEAAC_GET_SIZE_ALIGNED(

              MAX_QMF_BUF_LEN *

                  sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[1]->str_sbr_dec.pp_qmf_buf_imag[0]),

              BYTE_ALIGN_8));

      used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

          MAX_QMF_BUF_LEN *

              sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[1]->str_sbr_dec.pp_qmf_buf_imag[0]),

          BYTE_ALIGN_8);

    }

    for (index = 0; index < MAX_QMF_BUF_LEN; index++) {

      p_str_sbr_dec_inst->pstr_sbr_channel[0]

          ->str_sbr_dec.pp_qmf_buf_real[index] =

          (FLOAT32 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

      used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

          MAX_QMF_BUF_LEN *

              sizeof(

                  p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.pp_qmf_buf_real[index][0]),

          BYTE_ALIGN_8);

    }

    for (index = 0; index < MAX_QMF_BUF_LEN; index++) {

      p_str_sbr_dec_inst->pstr_sbr_channel[0]

          ->str_sbr_dec.pp_qmf_buf_imag[index] =

          (FLOAT32 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

      used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

          MAX_QMF_BUF_LEN *

              sizeof(

                  p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.pp_qmf_buf_imag[index][0]),

          BYTE_ALIGN_8);

    }

    if (num_channel == 2) {

      for (index = 0; index < MAX_QMF_BUF_LEN; index++) {

        p_str_sbr_dec_inst->pstr_sbr_channel[1]

            ->str_sbr_dec.pp_qmf_buf_real[index] =

            (FLOAT32 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

        used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

            MAX_QMF_BUF_LEN * sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[1]

                                         ->str_sbr_dec.pp_qmf_buf_real[index][0]),

            BYTE_ALIGN_8);

      }

      for (index = 0; index < MAX_QMF_BUF_LEN; index++) {

        p_str_sbr_dec_inst->pstr_sbr_channel[1]

            ->str_sbr_dec.pp_qmf_buf_imag[index] =

            (FLOAT32 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

        used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

            MAX_QMF_BUF_LEN * sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[1]

                                         ->str_sbr_dec.pp_qmf_buf_imag[index][0]),

            BYTE_ALIGN_8);

      }

    }

    for (i = 0; i < MAX_ENV_COLS; i++) {

      p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.p_arr_qmf_buf_real[i] =

          (WORD32 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

      memset(p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.p_arr_qmf_buf_real[i], 0,

             IXHEAAC_GET_SIZE_ALIGNED(

                 MAX_QMF_BUF_LEN * sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[0]

                                              ->str_sbr_dec.p_arr_qmf_buf_real[i][0]),

                 BYTE_ALIGN_8));

      used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

          MAX_QMF_BUF_LEN *

              sizeof(

                  p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.p_arr_qmf_buf_real[i][0]),

          BYTE_ALIGN_8);

      p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.p_arr_qmf_buf_imag[i] =

          (WORD32 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

      memset(p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.p_arr_qmf_buf_imag[i], 0,

             IXHEAAC_GET_SIZE_ALIGNED(

                 MAX_QMF_BUF_LEN * sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[0]

                                              ->str_sbr_dec.p_arr_qmf_buf_imag[i][0]),

                 BYTE_ALIGN_8));

      used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

          MAX_QMF_BUF_LEN *

              sizeof(

                  p_str_sbr_dec_inst->pstr_sbr_channel[0]->str_sbr_dec.p_arr_qmf_buf_imag[i][0]),

          BYTE_ALIGN_8);

    }

    if (num_channel == 2) {

      for (i = 0; i < MAX_ENV_COLS; i++) {

        p_str_sbr_dec_inst->pstr_sbr_channel[1]->str_sbr_dec.p_arr_qmf_buf_real[i] =

            (WORD32 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

        memset(p_str_sbr_dec_inst->pstr_sbr_channel[1]->str_sbr_dec.p_arr_qmf_buf_real[i], 0,

               IXHEAAC_GET_SIZE_ALIGNED(

                   MAX_QMF_BUF_LEN * sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[1]

                                                ->str_sbr_dec.p_arr_qmf_buf_real[i][0]),

                   BYTE_ALIGN_8));

        used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

            MAX_QMF_BUF_LEN * sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[1]

                                         ->str_sbr_dec.p_arr_qmf_buf_real[i][0]),

            BYTE_ALIGN_8);

        p_str_sbr_dec_inst->pstr_sbr_channel[1]->str_sbr_dec.p_arr_qmf_buf_imag[i] =

            (WORD32 *)((WORD8 *)sbr_persistent_mem_v + used_persistent);

        memset(p_str_sbr_dec_inst->pstr_sbr_channel[1]->str_sbr_dec.p_arr_qmf_buf_imag[i], 0,

               IXHEAAC_GET_SIZE_ALIGNED(

                   MAX_QMF_BUF_LEN * sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[1]

                                                ->str_sbr_dec.p_arr_qmf_buf_imag[i][0]),

                   BYTE_ALIGN_8));

        used_persistent += IXHEAAC_GET_SIZE_ALIGNED(

            MAX_QMF_BUF_LEN * sizeof(p_str_sbr_dec_inst->pstr_sbr_channel[1]

                                         ->str_sbr_dec.p_arr_qmf_buf_imag[i][0]),

            BYTE_ALIGN_8);

      }

    }

  }

  *persistent_used = used_persistent;

}

static PLATFORM_INLINE VOID ixheaacd_init_headerdata(

    ia_sbr_header_data_struct *ptr_header_data, WORD32 sample_rate_dec,

    WORD32 samp_per_frame, ia_freq_band_data_struct *freq_band_data,

    ia_sbr_tables_struct *sbr_tables, WORD audio_obj_type) {

  ia_freq_band_data_struct *pstr_freq_band_data = freq_band_data;

  WORD32 tmp;

  if (audio_obj_type != AOT_ER_AAC_ELD) {

    memcpy(ptr_header_data,

           &sbr_tables->env_extr_tables_ptr->str_sbr_default_header,

           sizeof(ia_sbr_header_data_struct));

  }

  if (audio_obj_type == AOT_ER_AAC_ELD) ptr_header_data->time_step -= 1;

  pstr_freq_band_data->freq_band_table[LOW] =

      pstr_freq_band_data->freq_band_tbl_lo;

  pstr_freq_band_data->freq_band_table[HIGH] =

      pstr_freq_band_data->freq_band_tbl_hi;

  ptr_header_data->pstr_freq_band_data = pstr_freq_band_data;

  ptr_header_data->core_frame_size = samp_per_frame;

  ptr_header_data->out_sampling_freq = sample_rate_dec << 1;

  if (audio_obj_type != AOT_ER_AAC_ELD) {

    tmp = ptr_header_data->time_step + 4;

    if (tmp < 0)

      ptr_header_data->num_time_slots =

          ixheaac_extract16l(samp_per_frame << (-tmp));

    else

      ptr_header_data->num_time_slots =

          ixheaac_extract16l(samp_per_frame >> tmp);

  } else {

    ptr_header_data->time_step = 1;

    ptr_header_data->num_time_slots =

        (samp_per_frame / 32 >> (ptr_header_data->time_step - 1));

  }

}

VOID ixheaacd_setesbr_flags(VOID *sbr_persistent_mem_v, FLAG pvc_flag,

                            FLAG hbe_flag, FLAG inter_tes_flag) {

  ia_sbr_pers_struct *sbr_persistent_mem;

  sbr_persistent_mem = (ia_sbr_pers_struct *)sbr_persistent_mem_v;

  sbr_persistent_mem->str_sbr_dec_inst.hbe_flag = hbe_flag;

  sbr_persistent_mem->str_sbr_dec_inst.pvc_flag = pvc_flag;

  sbr_persistent_mem->str_sbr_dec_inst.inter_tes_flag = inter_tes_flag;

  return;

}

ia_handle_sbr_dec_inst_struct ixheaacd_init_sbr(

    WORD32 sample_rate_dec, WORD32 samp_per_frame, FLAG *down_sample_flag,

    VOID *sbr_persistent_mem_v, WORD32 *ptr_overlap_buf, WORD32 channel,

    WORD32 ps_enable, WORD32 sbr_ratio_idx, WORD32 output_frame_size,

    WORD32 *use_hbe, VOID *p_usac_dflt_header,

    ia_sbr_header_data_struct str_sbr_config, WORD32 audio_object_type,

    WORD32 ldmps_present, WORD32 ldsbr_present) {

  WORD16 i;

  WORD16 err;

  ia_sbr_header_data_struct *ptr_header_data[MAXNRSBRCHANNELS];

  ia_sbr_dec_struct *ptr_sbr_dec[2];

  ia_qmf_dec_tables_struct *qmf_dec_tables_ptr;

  ia_sbr_pers_struct *sbr_persistent_mem;

  sbr_persistent_mem = (ia_sbr_pers_struct *)sbr_persistent_mem_v;

  ptr_sbr_dec[0] =

      &sbr_persistent_mem->str_sbr_dec_inst.pstr_sbr_channel[0]->str_sbr_dec;

  ptr_sbr_dec[1] =

      &sbr_persistent_mem->str_sbr_dec_inst.pstr_sbr_channel[1]->str_sbr_dec;

  qmf_dec_tables_ptr =

      sbr_persistent_mem->str_sbr_dec_inst.pstr_sbr_tables->qmf_dec_tables_ptr;

  if (sample_rate_dec > 48000) {

    *down_sample_flag = 1;

  }

  for (i = 0; i < channel; i++) {

    if (audio_object_type == AOT_ER_AAC_ELD) {

      memcpy(sbr_persistent_mem->str_sbr_dec_inst.pstr_sbr_header[i],

             &str_sbr_config, sizeof(ia_sbr_header_data_struct));

    }

    ptr_header_data[i] =

        sbr_persistent_mem->str_sbr_dec_inst.pstr_sbr_header[i];

    ixheaacd_init_headerdata(

        ptr_header_data[i], sample_rate_dec, samp_per_frame,

        sbr_persistent_mem->str_sbr_dec_inst.pstr_freq_band_data[i],

        sbr_persistent_mem->str_sbr_dec_inst.pstr_sbr_tables,

        audio_object_type);

    err = ixheaacd_create_sbrdec(

        sbr_persistent_mem->str_sbr_dec_inst.pstr_common_tables,

        sbr_persistent_mem->str_sbr_dec_inst.pstr_sbr_channel[i],

        ptr_header_data[i], i, *down_sample_flag, sbr_persistent_mem, ps_enable,

        audio_object_type, ldmps_present, ldsbr_present);

    ptr_header_data[i]->status = 1;

    ptr_sbr_dec[i]->band_count = 64;

    ptr_header_data[i]->pstr_freq_band_data[0].qmf_sb_prev = 64;

    ptr_header_data[i]->pstr_freq_band_data[1].qmf_sb_prev = 64;

    if (err) {

      return NULL;

    }

  }

  if (channel != 1) {

    if (ps_enable) {

      if (audio_object_type == AOT_ER_AAC_ELD)

        ixheaacd_create_psdec(

            sbr_persistent_mem->str_sbr_dec_inst.pstr_ps_stereo_dec,

            sbr_persistent_mem, &ptr_overlap_buf[512 * 4], samp_per_frame);

      else

        ixheaacd_create_psdec(

            sbr_persistent_mem->str_sbr_dec_inst.pstr_ps_stereo_dec,

            sbr_persistent_mem, ptr_overlap_buf, samp_per_frame);

    }

  }

  if ((use_hbe != NULL) && !((audio_object_type == AOT_ER_AAC_ELD) ||

     (audio_object_type == AOT_ER_AAC_LD))) {

    ia_sbr_header_data_struct *ptr_sbr_dflt_header =

        &sbr_persistent_mem->str_sbr_dec_inst.str_sbr_dflt_header;

    ia_sbr_header_data_struct *ptr_usac_dflt_header =

        (ia_sbr_header_data_struct *)p_usac_dflt_header;

    struct ia_sbr_dec_inst_struct *p_str_sbr_dec_inst =

        &sbr_persistent_mem->str_sbr_dec_inst;

    VOID *hbe_txposer_buffers = p_str_sbr_dec_inst->hbe_txposer_buffers;

    ptr_header_data[0] = p_str_sbr_dec_inst->pstr_sbr_header[0];

    ptr_header_data[1] = p_str_sbr_dec_inst->pstr_sbr_header[1];

    ptr_header_data[0]->sbr_ratio_idx = sbr_ratio_idx;

    ptr_header_data[0]->output_framesize = output_frame_size;

    ptr_header_data[0]->pstr_freq_band_data->sub_band_start = 64;

    ptr_header_data[0]->esbr_start_up = 1;

    ptr_header_data[0]->esbr_start_up_pvc = 1;

    if (channel > 1) {

      ptr_header_data[1]->sbr_ratio_idx = sbr_ratio_idx;

      ptr_header_data[1]->output_framesize = output_frame_size;

      ptr_header_data[1]->pstr_freq_band_data->sub_band_start = 64;

      ptr_header_data[1]->esbr_start_up = 1;

      ptr_header_data[1]->esbr_start_up_pvc = 1;

    }

    if (hbe_txposer_buffers != NULL) {

      WORD32 persistant_used = 0;

      ixheaacd_esbr_hbe_data_init(ptr_sbr_dec[0]->p_hbe_txposer, samp_per_frame,

                                  sbr_ratio_idx == SBR_UPSAMPLE_IDX_4_1 ? 1 : 0,

                                  output_frame_size, hbe_txposer_buffers, &persistant_used);

      hbe_txposer_buffers = (WORD8 *)hbe_txposer_buffers +

                            IXHEAAC_GET_SIZE_ALIGNED(MAX_HBE_PERSISTENT_SIZE, BYTE_ALIGN_8);

      ixheaacd_esbr_hbe_data_init(ptr_sbr_dec[1]->p_hbe_txposer, samp_per_frame,

                                  sbr_ratio_idx == SBR_UPSAMPLE_IDX_4_1 ? 1 : 0,

                                  output_frame_size, hbe_txposer_buffers, &persistant_used);

    }

    p_str_sbr_dec_inst->ptr_pvc_data_str->prev_first_bnd_idx = -1;

    p_str_sbr_dec_inst->ptr_pvc_data_str->prev_pvc_rate = -1;

    p_str_sbr_dec_inst->ptr_pvc_data_str->prev_sbr_mode = UNKNOWN_SBR;

    p_str_sbr_dec_inst->pstr_sbr_channel[0]

        ->str_sbr_dec.str_codec_qmf_bank.num_time_slots =

        output_frame_size / 64;

    p_str_sbr_dec_inst->pstr_sbr_channel[1]

        ->str_sbr_dec.str_codec_qmf_bank.num_time_slots =

        output_frame_size / 64;

    ptr_header_data[0]->core_frame_size = samp_per_frame;

    ptr_header_data[1]->core_frame_size = samp_per_frame;

    switch (sbr_ratio_idx) {

      case SBR_UPSAMPLE_IDX_0_0:

        ptr_sbr_dec[0]->str_codec_qmf_bank.no_channels = 32;

        ptr_sbr_dec[0]->str_codec_qmf_bank.esbr_cos_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_sin_cos_twiddle_l32;

        ptr_sbr_dec[0]->str_codec_qmf_bank.esbr_alt_sin_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_alt_sin_twiddle_l32;

        ptr_sbr_dec[0]->str_codec_qmf_bank.esbr_t_cos =

            (WORD32 *)qmf_dec_tables_ptr->esbr_t_cos_sin_l32;

        ptr_header_data[0]->is_usf_4 = 0;

        ptr_header_data[0]->upsamp_fac = 1;

        ptr_sbr_dec[1]->str_codec_qmf_bank.no_channels = 32;

        ptr_sbr_dec[1]->str_codec_qmf_bank.esbr_cos_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_sin_cos_twiddle_l32;

        ptr_sbr_dec[1]->str_codec_qmf_bank.esbr_alt_sin_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_alt_sin_twiddle_l32;

        ptr_sbr_dec[1]->str_codec_qmf_bank.esbr_t_cos =

            (WORD32 *)qmf_dec_tables_ptr->esbr_t_cos_sin_l32;

        ptr_header_data[1]->is_usf_4 = 0;

        ptr_header_data[1]->upsamp_fac = 1;

        break;

      case SBR_UPSAMPLE_IDX_2_1:

        ptr_sbr_dec[0]->str_codec_qmf_bank.no_channels = 32;

        ptr_sbr_dec[0]->str_codec_qmf_bank.esbr_cos_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_sin_cos_twiddle_l32;

        ptr_sbr_dec[0]->str_codec_qmf_bank.esbr_alt_sin_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_alt_sin_twiddle_l32;

        ptr_sbr_dec[0]->str_codec_qmf_bank.esbr_t_cos =

            (WORD32 *)qmf_dec_tables_ptr->esbr_t_cos_sin_l32;

        ptr_header_data[0]->is_usf_4 = 0;

        ptr_header_data[0]->upsamp_fac = 2;

        ptr_sbr_dec[1]->str_codec_qmf_bank.no_channels = 32;

        ptr_sbr_dec[1]->str_codec_qmf_bank.esbr_cos_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_sin_cos_twiddle_l32;

        ptr_sbr_dec[1]->str_codec_qmf_bank.esbr_alt_sin_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_alt_sin_twiddle_l32;

        ptr_sbr_dec[1]->str_codec_qmf_bank.esbr_t_cos =

            (WORD32 *)qmf_dec_tables_ptr->esbr_t_cos_sin_l32;

        ptr_header_data[1]->is_usf_4 = 0;

        ptr_header_data[1]->upsamp_fac = 2;

        break;

      case SBR_UPSAMPLE_IDX_8_3:

        ptr_sbr_dec[0]->str_codec_qmf_bank.no_channels = 24;

        ptr_sbr_dec[0]->str_codec_qmf_bank.filter_pos_32 =

            qmf_dec_tables_ptr->esbr_qmf_c_24;

        ptr_sbr_dec[0]->str_codec_qmf_bank.analy_win_coeff_32 =

            qmf_dec_tables_ptr->esbr_qmf_c_24;

        ptr_sbr_dec[0]->str_codec_qmf_bank.esbr_cos_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_sin_cos_twiddle_l24;

        ptr_sbr_dec[0]->str_codec_qmf_bank.esbr_alt_sin_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_alt_sin_twiddle_l24;

        ptr_sbr_dec[0]->str_codec_qmf_bank.esbr_t_cos =

            (WORD32 *)qmf_dec_tables_ptr->esbr_t_cos_sin_l24;

        ptr_header_data[0]->is_usf_4 = 0;

        ptr_header_data[0]->upsamp_fac = 2;

        ptr_sbr_dec[1]->str_codec_qmf_bank.no_channels = 24;

        ptr_sbr_dec[1]->str_codec_qmf_bank.filter_pos_32 =

            qmf_dec_tables_ptr->esbr_qmf_c_24;

        ptr_sbr_dec[1]->str_codec_qmf_bank.analy_win_coeff_32 =

            qmf_dec_tables_ptr->esbr_qmf_c_24;

        ptr_sbr_dec[1]->str_codec_qmf_bank.esbr_cos_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_sin_cos_twiddle_l24;

        ptr_sbr_dec[1]->str_codec_qmf_bank.esbr_alt_sin_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_alt_sin_twiddle_l24;

        ptr_sbr_dec[1]->str_codec_qmf_bank.esbr_t_cos =

            (WORD32 *)qmf_dec_tables_ptr->esbr_t_cos_sin_l24;

        ptr_header_data[1]->is_usf_4 = 0;

        ptr_header_data[1]->upsamp_fac = 2;

        break;

      case SBR_UPSAMPLE_IDX_4_1:

        ptr_sbr_dec[0]->str_codec_qmf_bank.no_channels = 16;

        ptr_sbr_dec[0]->str_codec_qmf_bank.esbr_cos_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_sin_cos_twiddle_l16;

        ptr_sbr_dec[0]->str_codec_qmf_bank.esbr_alt_sin_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_alt_sin_twiddle_l16;

        ptr_sbr_dec[0]->str_codec_qmf_bank.esbr_t_cos =

            (WORD32 *)qmf_dec_tables_ptr->esbr_t_cos_sin_l16;

        ptr_header_data[0]->is_usf_4 = 1;

        ptr_header_data[0]->upsamp_fac = 4;

        ptr_header_data[0]->out_sampling_freq =

            ptr_header_data[0]->out_sampling_freq * 2;

        ptr_sbr_dec[1]->str_codec_qmf_bank.no_channels = 16;

        ptr_sbr_dec[1]->str_codec_qmf_bank.esbr_cos_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_sin_cos_twiddle_l16;

        ptr_sbr_dec[1]->str_codec_qmf_bank.esbr_alt_sin_twiddle =

            (WORD32 *)qmf_dec_tables_ptr->esbr_alt_sin_twiddle_l16;

        ptr_sbr_dec[1]->str_codec_qmf_bank.esbr_t_cos =

            (WORD32 *)qmf_dec_tables_ptr->esbr_t_cos_sin_l16;

        ptr_header_data[1]->is_usf_4 = 1;

        ptr_header_data[1]->upsamp_fac = 4;

        ptr_header_data[1]->out_sampling_freq =

            ptr_header_data[1]->out_sampling_freq * 2;

        break;

    }

    if (ptr_usac_dflt_header != NULL) {

      ptr_sbr_dflt_header->start_freq = ptr_usac_dflt_header->start_freq;

      ptr_sbr_dflt_header->stop_freq = ptr_usac_dflt_header->stop_freq;

      if (ptr_usac_dflt_header->header_extra_1) {

        ptr_sbr_dflt_header->freq_scale = ptr_usac_dflt_header->freq_scale;

        ptr_sbr_dflt_header->alter_scale = ptr_usac_dflt_header->alter_scale;

        ptr_sbr_dflt_header->noise_bands = ptr_usac_dflt_header->noise_bands;

      } else {

        ptr_sbr_dflt_header->freq_scale = SBR_FREQ_SCALE_DEFAULT;

        ptr_sbr_dflt_header->alter_scale = SBR_ALTER_SCALE_DEFAULT;

        ptr_sbr_dflt_header->noise_bands = SBR_NOISE_BANDS_DEFAULT;

      }

      if (ptr_usac_dflt_header->header_extra_2) {

        ptr_sbr_dflt_header->limiter_bands = ptr_usac_dflt_header->limiter_bands;

        ptr_sbr_dflt_header->limiter_gains = ptr_usac_dflt_header->limiter_gains;

        ptr_sbr_dflt_header->interpol_freq = ptr_usac_dflt_header->interpol_freq;

        ptr_sbr_dflt_header->smoothing_mode =

            ptr_usac_dflt_header->smoothing_mode;

      } else {

        ptr_sbr_dflt_header->limiter_bands = SBR_LIMITER_BANDS_DEFAULT;

        ptr_sbr_dflt_header->limiter_gains = SBR_LIMITER_GAINS_DEFAULT;

        ptr_sbr_dflt_header->interpol_freq = SBR_INTERPOL_FREQ_DEFAULT;

        ptr_sbr_dflt_header->smoothing_mode = SBR_SMOOTHING_LENGTH_DEFAULT;

      }

    }

  }

  return &(sbr_persistent_mem->str_sbr_dec_inst);

}

static PLATFORM_INLINE WORD16 ixheaacd_create_sbr_env_calc(

    ixheaacd_misc_tables *pstr_common_table, ia_sbr_calc_env_struct *hs,

    WORD16 chan, VOID *sbr_persistent_mem_v,

    ia_sbr_header_data_struct *ptr_header_data, WORD audio_object_type) {

  WORD16 err;

  ia_sbr_pers_struct *sbr_persistent_mem =

      (ia_sbr_pers_struct *)sbr_persistent_mem_v;

  err = 0;

  memset(&hs->harm_flags_prev[0], 0, sizeof(WORD8) * MAX_FREQ_COEFFS);

  hs->harm_index = 0;

  hs->filt_buf_me = sbr_persistent_mem->sbr_smooth_gain_buf[chan];

  hs->filt_buf_noise_m = sbr_persistent_mem->sbr_smooth_noise_buf[chan];

  hs->tansient_env_prev = -1;

  ixheaacd_reset_sbrenvelope_calc(hs);

  if ((chan == 0) && (audio_object_type == AOT_ER_AAC_ELD)) {

    err = ixheaacd_calc_frq_bnd_tbls(ptr_header_data, pstr_common_table);

  }

  return err;

}

static PLATFORM_INLINE VOID ixheaacd_init_sbr_prev_framedata(

    ia_sbr_prev_frame_data_struct *ptr_prev_data, WORD16 time_slots) {

  WORD16 *psfb_nrg_prev = ptr_prev_data->sfb_nrg_prev;

  WORD16 *psfb_noise_level = ptr_prev_data->prev_noise_level;

  WORD32 *ppsbr_invf_mode = ptr_prev_data->sbr_invf_mode;

  memset(psfb_nrg_prev, 0, sizeof(WORD16) * (MAX_FREQ_COEFFS));

  memset(psfb_noise_level, 0, sizeof(WORD16) * (MAX_NOISE_COEFFS));

  memset(ppsbr_invf_mode, 0, sizeof(WORD32) * MAX_INVF_BANDS);

  ptr_prev_data->end_position = time_slots;

  ptr_prev_data->coupling_mode = COUPLING_OFF;

  ptr_prev_data->amp_res = 0;

  ptr_prev_data->max_qmf_subband_aac = 0;

}

static PLATFORM_INLINE VOID

ixheaacd_create_hyb_filterbank(ia_hybrid_struct *ptr_hybrid, WORD32 **p_ptr,

                               ia_sbr_tables_struct *sbr_tables_ptr) {

  WORD16 i;

  WORD32 *ptr = (WORD32 *)*p_ptr;

  ptr_hybrid->ptr_resol = sbr_tables_ptr->ps_tables_ptr->hyb_resol;

  ptr_hybrid->ptr_qmf_buf = HYBRID_FILTER_LENGTH - 1;

  ptr_hybrid->ptr_temp_re = ptr;

  ptr += NO_HYBRID_CHANNELS_HIGH;

  ptr_hybrid->ptr_temp_im = ptr;

  ptr += NO_HYBRID_CHANNELS_HIGH;

  memset(ptr_hybrid->ptr_temp_re, 0,

         2 * NO_HYBRID_CHANNELS_HIGH * sizeof(WORD32));

  ptr_hybrid->ptr_work_re = ptr;

  ptr += 16;

  ptr_hybrid->ptr_work_im = ptr;

  ptr += 16;

  for (i = 0; i < NO_QMF_CHANNELS_IN_HYBRID; i++) {

    ptr_hybrid->ptr_qmf_buf_re[i] = ptr;

    ptr += ptr_hybrid->ptr_qmf_buf;

    ptr_hybrid->ptr_qmf_buf_im[i] = ptr;

    ptr += ptr_hybrid->ptr_qmf_buf;

    memset(ptr_hybrid->ptr_qmf_buf_re[i], 0,

           2 * ptr_hybrid->ptr_qmf_buf * sizeof(WORD32));

  }

  *p_ptr = ptr;

  return;

}

static PLATFORM_INLINE VOID ixheaacd_create_hf_generator(

    ia_sbr_hf_generator_struct *ptr_hf_gen_str, WORD16 num_columns, WORD16 chan,

    VOID *sbr_persistent_mem_v, WORD32 ps_enable) {

  WORD16 i;

  ia_sbr_pers_struct *sbr_persistent_mem =

      (ia_sbr_pers_struct *)sbr_persistent_mem_v;

  ptr_hf_gen_str->pstr_settings = &sbr_persistent_mem->str_sbr_tran_settings;

  ptr_hf_gen_str->lpc_filt_states_real[0] =

      sbr_persistent_mem->sbr_lpc_filter_states_real[chan][0];

  ptr_hf_gen_str->lpc_filt_states_real[1] =

      sbr_persistent_mem->sbr_lpc_filter_states_real[chan][1];

  if (ps_enable) {

    ptr_hf_gen_str->lpc_filt_states_imag[0] =

        sbr_persistent_mem->sbr_lpc_filter_states_imag[chan][0];

    ptr_hf_gen_str->lpc_filt_states_imag[1] =

        sbr_persistent_mem->sbr_lpc_filter_states_imag[chan][1];

  }

  for (i = 0; i < LPC_ORDER; i++) {

    if (ptr_hf_gen_str->lpc_filt_states_real[i] != NULL) {

      memset(ptr_hf_gen_str->lpc_filt_states_real[i], 0,

             NO_ANALYSIS_CHANNELS * sizeof(WORD32));

    }

    if (ps_enable)

      memset(ptr_hf_gen_str->lpc_filt_states_imag[i], 0,

             NO_ANALYSIS_CHANNELS * sizeof(WORD32));

  }

  if (chan == 0) {

    ptr_hf_gen_str->pstr_settings->num_columns = num_columns;

  }

  return;

}

VOID ixheaacd_create_psdec(ia_ps_dec_struct *ptr_ps_dec,

                           VOID *sbr_persistent_mem_v,

                           WORD32 *ptr_overlap_buf, WORD32 frame_size) {

  ia_sbr_pers_struct *sbr_persistent_mem =

      (ia_sbr_pers_struct *)sbr_persistent_mem_v;

  WORD16 *ptr1 = (WORD16 *)&(

      sbr_persistent_mem->ptr_sbr_overlap_buf[MAXNRSBRCHANNELS - 1][0]);

  WORD32 *ptr2 = (WORD32 *)&ptr_overlap_buf[512];

  WORD16 *initial_ptr;

  WORD16 delay;

  WORD32 temp;

  ia_sbr_tables_struct *sbr_tables_ptr =

      sbr_persistent_mem->str_sbr_dec_inst.pstr_sbr_tables;

  memset(ptr_ps_dec, 0, sizeof(ia_ps_dec_struct));

  ptr_ps_dec->ps_data_present = 0;

  ptr_ps_dec->enable_iid = 0;

  ptr_ps_dec->enable_icc = 0;

  ptr_ps_dec->enable_ext = 0;

  ptr_ps_dec->iid_mode = 0;

  ptr_ps_dec->icc_mode = 0;

  ptr_ps_dec->ptr_hyb_left_re = ptr2;

  ptr2 += 16;

  ptr_ps_dec->ptr_hyb_left_im = ptr2;

  ptr2 += 16;

  ptr_ps_dec->ptr_hyb_right_re = ptr2;

  ptr2 += 16;

  ptr_ps_dec->ptr_hyb_right_im = ptr2;

  ptr2 += 16;

  memset(ptr_ps_dec->ptr_hyb_left_re, 0, sizeof(WORD32) * 16 * 4);

  ixheaacd_create_hyb_filterbank(&ptr_ps_dec->str_hybrid, &ptr2,

                                 sbr_tables_ptr);

  ptr_ps_dec->peak_decay_diff = ptr2;

  ptr2 += NUM_OF_BINS;

  ptr_ps_dec->energy_prev = ptr2;

  ptr2 += NUM_OF_BINS;

  ptr_ps_dec->peak_decay_diff_prev = ptr2;

  ptr2 += NUM_OF_BINS;

  memset(ptr_ps_dec->peak_decay_diff, 0, 3 * sizeof(WORD32) * NUM_OF_BINS);

  ptr_ps_dec->delay_buf_idx = 0;

  ptr_ps_dec->delay_buf_idx_long = 0;