decoder/ixheaacd_initfuncs.c - platform/external/libxaac - Git at Google

 /******************************************************************************
  *                                                                            *
  * 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_type_def.h>

 #include "ixheaacd_sbr_common.h"

 #include "ixheaacd_constants.h"
 #include <ixheaacd_basic_ops32.h>
 #include <ixheaacd_basic_ops16.h>
 #include <ixheaacd_basic_ops40.h>
 #include "ixheaacd_basic_ops.h"
 #include "ixheaacd_bitbuffer.h"

 #include <ixheaacd_basic_op.h>
 #include "ixheaacd_intrinsics.h"

 #include "ixheaacd_defines.h"

 #include <ixheaacd_aac_rom.h>

 #include "ixheaacd_definitions.h"

 #include "ixheaacd_error_codes.h"

 #include "ixheaacd_pulsedata.h"

 #include "ixheaacd_pns.h"
 #include "ixheaacd_drc_data_struct.h"

 #include "ixheaacd_lt_predict.h"

 #include "ixheaacd_channelinfo.h"
 #include "ixheaacd_drc_dec.h"

 #include "ixheaacd_sbrdecoder.h"
 #include "ixheaacd_block.h"
 #include "ixheaacd_channel.h"

 #include "ixheaacd_sbr_payload.h"
 #include "ixheaacd_common_rom.h"

 #include <ixheaacd_type_def.h>

 #include "ixheaacd_sbrdecsettings.h"
 #include "ixheaacd_sbr_scale.h"
 #include "ixheaacd_env_extr_part.h"
 #include <ixheaacd_sbr_rom.h>

 #include "ixheaacd_lpp_tran.h"
 #include "ixheaacd_hybrid.h"
 #include "ixheaacd_ps_dec.h"

 #include "ixheaacd_env_extr.h"
 #include "ixheaacd_adts.h"
 #include "ixheaacd_audioobjtypes.h"
 #include "ixheaacd_memory_standards.h"

 #include "ixheaacd_latmdemux.h"

 #include "ixheaacd_aacdec.h"
 #include "ixheaacd_mps_polyphase.h"
 #include "ixheaacd_config.h"
 #include "ixheaacd_mps_dec.h"

 #include "ixheaacd_struct_def.h"

 #include "ixheaacd_multichannel.h"

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

 WORD32 ixheaacd_set_aac_persistent_buffers(VOID *aac_persistent_mem_v,
                                            WORD32 num_channel) {
   WORD32 persistent_used;

   struct ia_aac_persistent_struct *aac_persistent_mem =
       (struct ia_aac_persistent_struct *)aac_persistent_mem_v;

   persistent_used = sizeof(struct ia_aac_persistent_struct);

   memset(aac_persistent_mem, 0, sizeof(struct ia_aac_persistent_struct));
   aac_persistent_mem->overlap_buffer =
       (WORD32 *)((WORD8 *)aac_persistent_mem_v + persistent_used);

   memset((WORD32 *)((WORD8 *)aac_persistent_mem_v + persistent_used), 0,
          4 * 512 * num_channel * sizeof(WORD32));

   persistent_used += 4 * 512 * num_channel * sizeof(WORD32);

   aac_persistent_mem->sbr_payload_buffer =
       (WORD8 *)((WORD8 *)aac_persistent_mem_v + persistent_used);

   memset((WORD16 *)((WORD8 *)aac_persistent_mem_v + persistent_used), 0,
          ALIGN_SIZE64(MAXSBRBYTES) * num_channel * sizeof(WORD8));

   persistent_used += ALIGN_SIZE64(MAXSBRBYTES) * num_channel * sizeof(WORD8);

   {
     WORD32 i;

     for (i = 0; i < num_channel; i++) {
       aac_persistent_mem->ltp_buf[i] =
           (WORD16 *)((WORD8 *)aac_persistent_mem_v + persistent_used);

       memset((WORD16 *)((WORD8 *)aac_persistent_mem_v + persistent_used), 0,
              ltp_buffer_size * sizeof(WORD16));

       persistent_used += (ltp_buffer_size * sizeof(WORD16));

       aac_persistent_mem->ptr_aac_dec_static_channel_info[i] =
           (ia_aac_dec_channel_info *)((WORD8 *)aac_persistent_mem_v +
                                       persistent_used);
       persistent_used += sizeof(ia_aac_dec_channel_info);

       aac_persistent_mem->ptr_aac_dec_static_channel_info[i]
           ->overlap_add_data.win_shape = 0;
       aac_persistent_mem->ptr_aac_dec_static_channel_info[i]
           ->overlap_add_data.win_seq = 0;

       aac_persistent_mem->ptr_aac_dec_static_channel_info[i]
           ->overlap_add_data.ptr_overlap_buf =
           &aac_persistent_mem->overlap_buffer[i * OVERLAP_BUFFER_SIZE];
     }
   }

   return persistent_used;
 }

 VOID ixheaacd_huff_tables_create(ia_aac_dec_tables_struct *ptr_aac_tables) {
   ptr_aac_tables->code_book[0] = 0;
   ptr_aac_tables->code_book[1] =
       (UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb1;
   ptr_aac_tables->code_book[2] =
       (UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb2;
   ptr_aac_tables->code_book[3] =
       (UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb3;
   ptr_aac_tables->code_book[4] =
       (UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb4;
   ptr_aac_tables->code_book[5] =
       (UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb5;
   ptr_aac_tables->code_book[6] =
       (UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb6;
   ptr_aac_tables->code_book[7] =
       (UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb7;
   ptr_aac_tables->code_book[8] =
       (UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb8;
   ptr_aac_tables->code_book[9] =
       (UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb9;
   ptr_aac_tables->code_book[10] =
       (UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb10;
   ptr_aac_tables->code_book[11] =
       (UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb10;
   ptr_aac_tables->code_book[12] =
       (UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb10;

   ptr_aac_tables->index_table[1] =
       (UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf1;
   ptr_aac_tables->index_table[2] =
       (UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf2;
   ptr_aac_tables->index_table[3] =
       (UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf3;
   ptr_aac_tables->index_table[4] =
       (UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf4;
   ptr_aac_tables->index_table[5] =
       (UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf5;
   ptr_aac_tables->index_table[6] =
       (UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf6;
   ptr_aac_tables->index_table[7] =
       (UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf7;
   ptr_aac_tables->index_table[8] =
       (UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf8;
   ptr_aac_tables->index_table[9] =
       (UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf9;
   ptr_aac_tables->index_table[10] =
       (UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf10;
   ptr_aac_tables->index_table[11] =
       (UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf10;
   ptr_aac_tables->index_table[12] =
       (UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf10;

   ptr_aac_tables->scale_factor_bands_short[0] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_96_128;
   ptr_aac_tables->scale_factor_bands_short[1] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_96_128;
   ptr_aac_tables->scale_factor_bands_short[2] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_96_128;
   ptr_aac_tables->scale_factor_bands_short[3] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_128;
   ptr_aac_tables->scale_factor_bands_short[4] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_128;
   ptr_aac_tables->scale_factor_bands_short[5] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_128;
   ptr_aac_tables->scale_factor_bands_short[6] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_128;
   ptr_aac_tables->scale_factor_bands_short[7] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_128;
   ptr_aac_tables->scale_factor_bands_short[8] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_16_128;
   ptr_aac_tables->scale_factor_bands_short[9] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_16_128;
   ptr_aac_tables->scale_factor_bands_short[10] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_16_128;
   ptr_aac_tables->scale_factor_bands_short[11] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_8_128;

   ptr_aac_tables->scale_factor_bands_long[0] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_96_1024;
   ptr_aac_tables->scale_factor_bands_long[1] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_96_1024;
   ptr_aac_tables->scale_factor_bands_long[2] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_64_1024;
   ptr_aac_tables->scale_factor_bands_long[3] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_1024;
   ptr_aac_tables->scale_factor_bands_long[4] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_1024;
   ptr_aac_tables->scale_factor_bands_long[5] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_32_1024;
   ptr_aac_tables->scale_factor_bands_long[6] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_1024;
   ptr_aac_tables->scale_factor_bands_long[7] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_1024;
   ptr_aac_tables->scale_factor_bands_long[8] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_16_1024;
   ptr_aac_tables->scale_factor_bands_long[9] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_16_1024;
   ptr_aac_tables->scale_factor_bands_long[10] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_16_1024;
   ptr_aac_tables->scale_factor_bands_long[11] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_8_1024;

   ptr_aac_tables->scale_fac_bands_512[0] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_512;
   ptr_aac_tables->scale_fac_bands_512[1] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_512;
   ptr_aac_tables->scale_fac_bands_512[2] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_512;
   ptr_aac_tables->scale_fac_bands_512[3] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_512;
   ptr_aac_tables->scale_fac_bands_512[4] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_512;
   ptr_aac_tables->scale_fac_bands_512[5] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_32_512;
   ptr_aac_tables->scale_fac_bands_512[6] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
   ptr_aac_tables->scale_fac_bands_512[7] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
   ptr_aac_tables->scale_fac_bands_512[8] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
   ptr_aac_tables->scale_fac_bands_512[9] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
   ptr_aac_tables->scale_fac_bands_512[10] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
   ptr_aac_tables->scale_fac_bands_512[11] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
   ptr_aac_tables->scale_fac_bands_512[12] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
   ptr_aac_tables->scale_fac_bands_512[13] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
   ptr_aac_tables->scale_fac_bands_512[14] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
   ptr_aac_tables->scale_fac_bands_512[15] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;

   ptr_aac_tables->scale_fac_bands_480[0] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_480;
   ptr_aac_tables->scale_fac_bands_480[1] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_480;
   ptr_aac_tables->scale_fac_bands_480[2] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_480;
   ptr_aac_tables->scale_fac_bands_480[3] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_480;
   ptr_aac_tables->scale_fac_bands_480[4] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_480;
   ptr_aac_tables->scale_fac_bands_480[5] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_32_480;
   ptr_aac_tables->scale_fac_bands_480[6] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
   ptr_aac_tables->scale_fac_bands_480[7] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
   ptr_aac_tables->scale_fac_bands_480[8] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
   ptr_aac_tables->scale_fac_bands_480[9] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
   ptr_aac_tables->scale_fac_bands_480[10] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
   ptr_aac_tables->scale_fac_bands_480[11] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
   ptr_aac_tables->scale_fac_bands_480[12] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
   ptr_aac_tables->scale_fac_bands_480[13] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
   ptr_aac_tables->scale_fac_bands_480[14] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
   ptr_aac_tables->scale_fac_bands_480[15] =
       ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
 }

 ia_aac_decoder_struct *ixheaacd_aac_decoder_init(
     ia_aac_dec_state_struct *p_state_enhaacplus_dec,
     ia_aac_dec_sbr_bitstream_struct *ptr_sbr_bitstream, WORD channels,
     VOID *aac_persistent_mem_v, WORD32 frame_length) {
   WORD i, ch;
   struct ia_aac_persistent_struct *aac_persistent_mem;
   aac_persistent_mem = (struct ia_aac_persistent_struct *)aac_persistent_mem_v;

   aac_persistent_mem->str_aac_decoder.pstr_sbr_bitstream = ptr_sbr_bitstream;

   for (ch = 0; ch < channels; ch++) {
     ia_aac_decoder_struct *aac_dec_handle =
         &aac_persistent_mem->str_aac_decoder;
     aac_dec_handle->pstr_aac_dec_overlap_info[ch] =
         &aac_persistent_mem->str_aac_dec_overlap_info[ch];
     aac_dec_handle->pstr_pns_rand_vec_data =
         &aac_persistent_mem->str_pns_rand_vec_data;

     aac_dec_handle->pstr_aac_dec_overlap_info[ch]->window_shape = 0;
     aac_dec_handle->pstr_aac_dec_overlap_info[ch]->window_sequence = 0;
     if (p_state_enhaacplus_dec->audio_object_type == AOT_ER_AAC_ELD)
       aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_overlap_buf =
           &aac_persistent_mem->overlap_buffer[ch * 4 * OVERLAP_BUFFER_SIZE];
     else
       aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_overlap_buf =
           &aac_persistent_mem->overlap_buffer[ch * OVERLAP_BUFFER_SIZE];

     {
       WORD32 *ptr_overlap_buf =
           aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_overlap_buf;
       memset(ptr_overlap_buf, 0, sizeof(WORD32) * 4 * 512);
     }
     aac_persistent_mem->str_aac_decoder.ptr_aac_dec_static_channel_info[ch] =
         aac_persistent_mem->ptr_aac_dec_static_channel_info[ch];
     aac_persistent_mem->str_aac_decoder.ptr_aac_dec_static_channel_info[ch]
         ->ltp_buf = aac_persistent_mem->ltp_buf[ch];
   }

   for (i = 0; i < 1; i++) {
     ia_aac_dec_sbr_bitstream_struct *ptr_sbr_bitstream =
         &aac_persistent_mem->str_aac_decoder.pstr_sbr_bitstream[i];

     ptr_sbr_bitstream->no_elements = 0;
     ptr_sbr_bitstream->str_sbr_ele[0].ptr_sbr_data =
         &aac_persistent_mem->sbr_payload_buffer[ALIGN_SIZE64(MAXSBRBYTES) * i];
     ptr_sbr_bitstream->str_sbr_ele[0].sbr_ele_id = ID_SCE;
     ptr_sbr_bitstream->str_sbr_ele[0].size_payload = 0;
   }

   {
     ia_aac_dec_tables_struct *ptr_aac_tables =
         aac_persistent_mem->str_aac_decoder.pstr_aac_tables;
     ia_aac_dec_huffman_tables_struct *pstr_huffmann_tables =
         ptr_aac_tables->pstr_huffmann_tables;

     WORD num_entries = sizeof(pstr_huffmann_tables->str_sample_rate_info) /
                        sizeof(ia_sampling_rate_info_struct);

     WORD32 sampling_rate = p_state_enhaacplus_dec->sampling_rate;

     i = 0;
     while (sampling_rate != ((pstr_huffmann_tables->str_sample_rate_info[i]
                                   .sampling_frequency)) &&
            (i < num_entries)) {
       i++;
     }
     if (i == 12) {
       i = i - 1;
     }

     if (i == num_entries) {
       return NULL;
     }

     if (frame_length == 1024) {
       WORD16 *psfb_table_idx[2];
       const WORD8 *psfb_width[2];
       WORD width_idx;
       WORD32 j;

       psfb_table_idx[0] = ptr_aac_tables->sfb_long_table;
       psfb_table_idx[1] = ptr_aac_tables->sfb_short_table;

       psfb_width[0] = ptr_aac_tables->scale_factor_bands_long[i];
       psfb_width[1] = ptr_aac_tables->scale_factor_bands_short[i];

       for (j = 1; j >= 0; j--) {
         const WORD8 *ptr_width = psfb_width[j];
         WORD16 *ptable_idx = psfb_table_idx[j];
         width_idx = 0;
         *ptable_idx++ = width_idx;
         do {
           width_idx += (*ptr_width++);
           *ptable_idx++ = width_idx;
         } while (*ptr_width != -1);

         aac_persistent_mem->str_aac_decoder.num_swb_window[j] =
             (WORD8)(ptr_width - psfb_width[j]);
       }

       {
         ptr_aac_tables->str_aac_sfb_info[0].sfb_index =
             ptr_aac_tables->sfb_long_table;
         ptr_aac_tables->str_aac_sfb_info[1].sfb_index =
             ptr_aac_tables->sfb_long_table;
         ptr_aac_tables->str_aac_sfb_info[3].sfb_index =
             ptr_aac_tables->sfb_long_table;

         ptr_aac_tables->str_aac_sfb_info[2].sfb_index =
             ptr_aac_tables->sfb_short_table;

         ptr_aac_tables->str_aac_sfb_info[0].sfb_width = (WORD8 *)psfb_width[0];
         ptr_aac_tables->str_aac_sfb_info[1].sfb_width = (WORD8 *)psfb_width[0];
         ptr_aac_tables->str_aac_sfb_info[3].sfb_width = (WORD8 *)psfb_width[0];

         ptr_aac_tables->str_aac_sfb_info[2].sfb_width = (WORD8 *)psfb_width[1];
       }
     } else {
       WORD16 *ptr_sfb_idx[2];
       const WORD8 *ptr_sfb_width[2];
       WORD width_idx;
       WORD32 j;

       ptr_sfb_idx[0] = ptr_aac_tables->sfb_long_table;
       ptr_sfb_idx[1] = ptr_aac_tables->sfb_short_table;

       if (frame_length == 512)
         ptr_sfb_width[0] = ptr_aac_tables->scale_fac_bands_512[i];
       else
         ptr_sfb_width[0] = ptr_aac_tables->scale_fac_bands_480[i];

       for (j = 0; j >= 0; j--) {
         const WORD8 *ptr_width = ptr_sfb_width[j];
         WORD16 *ptr_idx = ptr_sfb_idx[j];
         width_idx = 0;
         *ptr_idx++ = width_idx;
         do {
           width_idx += (*ptr_width++);
           *ptr_idx++ = width_idx;
         } while (*ptr_width != -1);

         aac_persistent_mem->str_aac_decoder.num_swb_window[j] =
             (WORD8)(ptr_width - ptr_sfb_width[j]);
       }

       {
         ptr_aac_tables->str_aac_sfb_info[0].sfb_index =
             ptr_aac_tables->sfb_long_table;
         ptr_aac_tables->str_aac_sfb_info[1].sfb_index =
             ptr_aac_tables->sfb_long_table;
         ptr_aac_tables->str_aac_sfb_info[3].sfb_index =
             ptr_aac_tables->sfb_long_table;
         ptr_aac_tables->str_aac_sfb_info[2].sfb_index =
             ptr_aac_tables->sfb_short_table;

         ptr_aac_tables->str_aac_sfb_info[0].sfb_width =
             (WORD8 *)ptr_sfb_width[0];
         ptr_aac_tables->str_aac_sfb_info[1].sfb_width =
             (WORD8 *)ptr_sfb_width[0];
         ptr_aac_tables->str_aac_sfb_info[3].sfb_width =
             (WORD8 *)ptr_sfb_width[0];
         ptr_aac_tables->str_aac_sfb_info[2].sfb_width =
             (WORD8 *)ptr_sfb_width[1];
       }
     }
     {
       ia_aac_decoder_struct *aac_dec_handle =
           &aac_persistent_mem->str_aac_decoder;
       aac_dec_handle->sampling_rate_index = (WORD16)i;
       aac_dec_handle->sampling_rate = sampling_rate;
       aac_dec_handle->channels = 1;
       aac_dec_handle->block_number = 0;
       aac_dec_handle->samples_per_frame = frame_length;
     }
   }

   return &(aac_persistent_mem->str_aac_decoder);
 }
	/******************************************************************************
	* *
	* 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_type_def.h>

	#include "ixheaacd_sbr_common.h"

	#include "ixheaacd_constants.h"
	#include <ixheaacd_basic_ops32.h>
	#include <ixheaacd_basic_ops16.h>
	#include <ixheaacd_basic_ops40.h>
	#include "ixheaacd_basic_ops.h"
	#include "ixheaacd_bitbuffer.h"

	#include <ixheaacd_basic_op.h>
	#include "ixheaacd_intrinsics.h"

	#include "ixheaacd_defines.h"

	#include <ixheaacd_aac_rom.h>

	#include "ixheaacd_definitions.h"

	#include "ixheaacd_error_codes.h"

	#include "ixheaacd_pulsedata.h"

	#include "ixheaacd_pns.h"
	#include "ixheaacd_drc_data_struct.h"

	#include "ixheaacd_lt_predict.h"

	#include "ixheaacd_channelinfo.h"
	#include "ixheaacd_drc_dec.h"

	#include "ixheaacd_sbrdecoder.h"
	#include "ixheaacd_block.h"
	#include "ixheaacd_channel.h"

	#include "ixheaacd_sbr_payload.h"
	#include "ixheaacd_common_rom.h"

	#include <ixheaacd_type_def.h>

	#include "ixheaacd_sbrdecsettings.h"
	#include "ixheaacd_sbr_scale.h"
	#include "ixheaacd_env_extr_part.h"
	#include <ixheaacd_sbr_rom.h>

	#include "ixheaacd_lpp_tran.h"
	#include "ixheaacd_hybrid.h"
	#include "ixheaacd_ps_dec.h"

	#include "ixheaacd_env_extr.h"
	#include "ixheaacd_adts.h"
	#include "ixheaacd_audioobjtypes.h"
	#include "ixheaacd_memory_standards.h"

	#include "ixheaacd_latmdemux.h"

	#include "ixheaacd_aacdec.h"
	#include "ixheaacd_mps_polyphase.h"
	#include "ixheaacd_config.h"
	#include "ixheaacd_mps_dec.h"

	#include "ixheaacd_struct_def.h"

	#include "ixheaacd_multichannel.h"

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

	WORD32 ixheaacd_set_aac_persistent_buffers(VOID *aac_persistent_mem_v,
	WORD32 num_channel) {
	WORD32 persistent_used;

	struct ia_aac_persistent_struct *aac_persistent_mem =
	(struct ia_aac_persistent_struct *)aac_persistent_mem_v;

	persistent_used = sizeof(struct ia_aac_persistent_struct);

	memset(aac_persistent_mem, 0, sizeof(struct ia_aac_persistent_struct));
	aac_persistent_mem->overlap_buffer =
	(WORD32 )((WORD8 )aac_persistent_mem_v + persistent_used);

	memset((WORD32 )((WORD8 )aac_persistent_mem_v + persistent_used), 0,
	4 * 512 * num_channel * sizeof(WORD32));

	persistent_used += 4 * 512 * num_channel * sizeof(WORD32);

	aac_persistent_mem->sbr_payload_buffer =
	(WORD8 )((WORD8 )aac_persistent_mem_v + persistent_used);

	memset((WORD16 )((WORD8 )aac_persistent_mem_v + persistent_used), 0,
	ALIGN_SIZE64(MAXSBRBYTES) * num_channel * sizeof(WORD8));

	persistent_used += ALIGN_SIZE64(MAXSBRBYTES) * num_channel * sizeof(WORD8);

	{
	WORD32 i;

	for (i = 0; i < num_channel; i++) {
	aac_persistent_mem->ltp_buf[i] =
	(WORD16 )((WORD8 )aac_persistent_mem_v + persistent_used);

	memset((WORD16 )((WORD8 )aac_persistent_mem_v + persistent_used), 0,
	ltp_buffer_size * sizeof(WORD16));

	persistent_used += (ltp_buffer_size * sizeof(WORD16));

	aac_persistent_mem->ptr_aac_dec_static_channel_info[i] =
	(ia_aac_dec_channel_info )((WORD8 )aac_persistent_mem_v +
	persistent_used);
	persistent_used += sizeof(ia_aac_dec_channel_info);

	aac_persistent_mem->ptr_aac_dec_static_channel_info[i]
	->overlap_add_data.win_shape = 0;
	aac_persistent_mem->ptr_aac_dec_static_channel_info[i]
	->overlap_add_data.win_seq = 0;

	aac_persistent_mem->ptr_aac_dec_static_channel_info[i]
	->overlap_add_data.ptr_overlap_buf =
	&aac_persistent_mem->overlap_buffer[i * OVERLAP_BUFFER_SIZE];
	}
	}

	return persistent_used;
	}

	VOID ixheaacd_huff_tables_create(ia_aac_dec_tables_struct *ptr_aac_tables) {
	ptr_aac_tables->code_book[0] = 0;
	ptr_aac_tables->code_book[1] =
	(UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb1;
	ptr_aac_tables->code_book[2] =
	(UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb2;
	ptr_aac_tables->code_book[3] =
	(UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb3;
	ptr_aac_tables->code_book[4] =
	(UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb4;
	ptr_aac_tables->code_book[5] =
	(UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb5;
	ptr_aac_tables->code_book[6] =
	(UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb6;
	ptr_aac_tables->code_book[7] =
	(UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb7;
	ptr_aac_tables->code_book[8] =
	(UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb8;
	ptr_aac_tables->code_book[9] =
	(UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb9;
	ptr_aac_tables->code_book[10] =
	(UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb10;
	ptr_aac_tables->code_book[11] =
	(UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb10;
	ptr_aac_tables->code_book[12] =
	(UWORD16 *)ptr_aac_tables->pstr_huffmann_tables->input_table_cb10;

	ptr_aac_tables->index_table[1] =
	(UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf1;
	ptr_aac_tables->index_table[2] =
	(UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf2;
	ptr_aac_tables->index_table[3] =
	(UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf3;
	ptr_aac_tables->index_table[4] =
	(UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf4;
	ptr_aac_tables->index_table[5] =
	(UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf5;
	ptr_aac_tables->index_table[6] =
	(UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf6;
	ptr_aac_tables->index_table[7] =
	(UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf7;
	ptr_aac_tables->index_table[8] =
	(UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf8;
	ptr_aac_tables->index_table[9] =
	(UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf9;
	ptr_aac_tables->index_table[10] =
	(UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf10;
	ptr_aac_tables->index_table[11] =
	(UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf10;
	ptr_aac_tables->index_table[12] =
	(UWORD32 *)ptr_aac_tables->pstr_huffmann_tables->idx_table_hf10;

	ptr_aac_tables->scale_factor_bands_short[0] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_96_128;
	ptr_aac_tables->scale_factor_bands_short[1] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_96_128;
	ptr_aac_tables->scale_factor_bands_short[2] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_96_128;
	ptr_aac_tables->scale_factor_bands_short[3] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_128;
	ptr_aac_tables->scale_factor_bands_short[4] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_128;
	ptr_aac_tables->scale_factor_bands_short[5] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_128;
	ptr_aac_tables->scale_factor_bands_short[6] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_128;
	ptr_aac_tables->scale_factor_bands_short[7] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_128;
	ptr_aac_tables->scale_factor_bands_short[8] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_16_128;
	ptr_aac_tables->scale_factor_bands_short[9] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_16_128;
	ptr_aac_tables->scale_factor_bands_short[10] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_16_128;
	ptr_aac_tables->scale_factor_bands_short[11] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_8_128;

	ptr_aac_tables->scale_factor_bands_long[0] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_96_1024;
	ptr_aac_tables->scale_factor_bands_long[1] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_96_1024;
	ptr_aac_tables->scale_factor_bands_long[2] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_64_1024;
	ptr_aac_tables->scale_factor_bands_long[3] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_1024;
	ptr_aac_tables->scale_factor_bands_long[4] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_1024;
	ptr_aac_tables->scale_factor_bands_long[5] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_32_1024;
	ptr_aac_tables->scale_factor_bands_long[6] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_1024;
	ptr_aac_tables->scale_factor_bands_long[7] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_1024;
	ptr_aac_tables->scale_factor_bands_long[8] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_16_1024;
	ptr_aac_tables->scale_factor_bands_long[9] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_16_1024;
	ptr_aac_tables->scale_factor_bands_long[10] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_16_1024;
	ptr_aac_tables->scale_factor_bands_long[11] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_8_1024;

	ptr_aac_tables->scale_fac_bands_512[0] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_512;
	ptr_aac_tables->scale_fac_bands_512[1] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_512;
	ptr_aac_tables->scale_fac_bands_512[2] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_512;
	ptr_aac_tables->scale_fac_bands_512[3] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_512;
	ptr_aac_tables->scale_fac_bands_512[4] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_512;
	ptr_aac_tables->scale_fac_bands_512[5] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_32_512;
	ptr_aac_tables->scale_fac_bands_512[6] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
	ptr_aac_tables->scale_fac_bands_512[7] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
	ptr_aac_tables->scale_fac_bands_512[8] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
	ptr_aac_tables->scale_fac_bands_512[9] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
	ptr_aac_tables->scale_fac_bands_512[10] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
	ptr_aac_tables->scale_fac_bands_512[11] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
	ptr_aac_tables->scale_fac_bands_512[12] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
	ptr_aac_tables->scale_fac_bands_512[13] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
	ptr_aac_tables->scale_fac_bands_512[14] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;
	ptr_aac_tables->scale_fac_bands_512[15] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_512;

	ptr_aac_tables->scale_fac_bands_480[0] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_480;
	ptr_aac_tables->scale_fac_bands_480[1] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_480;
	ptr_aac_tables->scale_fac_bands_480[2] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_480;
	ptr_aac_tables->scale_fac_bands_480[3] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_480;
	ptr_aac_tables->scale_fac_bands_480[4] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_48_480;
	ptr_aac_tables->scale_fac_bands_480[5] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_32_480;
	ptr_aac_tables->scale_fac_bands_480[6] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
	ptr_aac_tables->scale_fac_bands_480[7] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
	ptr_aac_tables->scale_fac_bands_480[8] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
	ptr_aac_tables->scale_fac_bands_480[9] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
	ptr_aac_tables->scale_fac_bands_480[10] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
	ptr_aac_tables->scale_fac_bands_480[11] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
	ptr_aac_tables->scale_fac_bands_480[12] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
	ptr_aac_tables->scale_fac_bands_480[13] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
	ptr_aac_tables->scale_fac_bands_480[14] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
	ptr_aac_tables->scale_fac_bands_480[15] =
	ptr_aac_tables->pstr_huffmann_tables->ixheaacd_sfb_24_480;
	}

	ia_aac_decoder_struct *ixheaacd_aac_decoder_init(
	ia_aac_dec_state_struct *p_state_enhaacplus_dec,
	ia_aac_dec_sbr_bitstream_struct *ptr_sbr_bitstream, WORD channels,
	VOID *aac_persistent_mem_v, WORD32 frame_length) {
	WORD i, ch;
	struct ia_aac_persistent_struct *aac_persistent_mem;
	aac_persistent_mem = (struct ia_aac_persistent_struct *)aac_persistent_mem_v;

	aac_persistent_mem->str_aac_decoder.pstr_sbr_bitstream = ptr_sbr_bitstream;

	for (ch = 0; ch < channels; ch++) {
	ia_aac_decoder_struct *aac_dec_handle =
	&aac_persistent_mem->str_aac_decoder;
	aac_dec_handle->pstr_aac_dec_overlap_info[ch] =
	&aac_persistent_mem->str_aac_dec_overlap_info[ch];
	aac_dec_handle->pstr_pns_rand_vec_data =
	&aac_persistent_mem->str_pns_rand_vec_data;

	aac_dec_handle->pstr_aac_dec_overlap_info[ch]->window_shape = 0;
	aac_dec_handle->pstr_aac_dec_overlap_info[ch]->window_sequence = 0;
	if (p_state_enhaacplus_dec->audio_object_type == AOT_ER_AAC_ELD)
	aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_overlap_buf =
	&aac_persistent_mem->overlap_buffer[ch * 4 * OVERLAP_BUFFER_SIZE];
	else
	aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_overlap_buf =
	&aac_persistent_mem->overlap_buffer[ch * OVERLAP_BUFFER_SIZE];

	{
	WORD32 *ptr_overlap_buf =
	aac_dec_handle->pstr_aac_dec_overlap_info[ch]->ptr_overlap_buf;
	memset(ptr_overlap_buf, 0, sizeof(WORD32) * 4 * 512);
	}
	aac_persistent_mem->str_aac_decoder.ptr_aac_dec_static_channel_info[ch] =
	aac_persistent_mem->ptr_aac_dec_static_channel_info[ch];
	aac_persistent_mem->str_aac_decoder.ptr_aac_dec_static_channel_info[ch]
	->ltp_buf = aac_persistent_mem->ltp_buf[ch];
	}

	for (i = 0; i < 1; i++) {
	ia_aac_dec_sbr_bitstream_struct *ptr_sbr_bitstream =
	&aac_persistent_mem->str_aac_decoder.pstr_sbr_bitstream[i];

	ptr_sbr_bitstream->no_elements = 0;
	ptr_sbr_bitstream->str_sbr_ele[0].ptr_sbr_data =
	&aac_persistent_mem->sbr_payload_buffer[ALIGN_SIZE64(MAXSBRBYTES) * i];
	ptr_sbr_bitstream->str_sbr_ele[0].sbr_ele_id = ID_SCE;
	ptr_sbr_bitstream->str_sbr_ele[0].size_payload = 0;
	}

	{
	ia_aac_dec_tables_struct *ptr_aac_tables =
	aac_persistent_mem->str_aac_decoder.pstr_aac_tables;
	ia_aac_dec_huffman_tables_struct *pstr_huffmann_tables =
	ptr_aac_tables->pstr_huffmann_tables;

	WORD num_entries = sizeof(pstr_huffmann_tables->str_sample_rate_info) /
	sizeof(ia_sampling_rate_info_struct);

	WORD32 sampling_rate = p_state_enhaacplus_dec->sampling_rate;

	i = 0;
	while (sampling_rate != ((pstr_huffmann_tables->str_sample_rate_info[i]
	.sampling_frequency)) &&
	(i < num_entries)) {
	i++;
	}
	if (i == 12) {
	i = i - 1;
	}

	if (i == num_entries) {
	return NULL;
	}

	if (frame_length == 1024) {
	WORD16 *psfb_table_idx[2];
	const WORD8 *psfb_width[2];
	WORD width_idx;
	WORD32 j;

	psfb_table_idx[0] = ptr_aac_tables->sfb_long_table;
	psfb_table_idx[1] = ptr_aac_tables->sfb_short_table;

	psfb_width[0] = ptr_aac_tables->scale_factor_bands_long[i];
	psfb_width[1] = ptr_aac_tables->scale_factor_bands_short[i];

	for (j = 1; j >= 0; j--) {
	const WORD8 *ptr_width = psfb_width[j];
	WORD16 *ptable_idx = psfb_table_idx[j];
	width_idx = 0;
	*ptable_idx++ = width_idx;
	do {
	width_idx += (*ptr_width++);
	*ptable_idx++ = width_idx;
	} while (*ptr_width != -1);

	aac_persistent_mem->str_aac_decoder.num_swb_window[j] =
	(WORD8)(ptr_width - psfb_width[j]);
	}

	{
	ptr_aac_tables->str_aac_sfb_info[0].sfb_index =
	ptr_aac_tables->sfb_long_table;
	ptr_aac_tables->str_aac_sfb_info[1].sfb_index =
	ptr_aac_tables->sfb_long_table;
	ptr_aac_tables->str_aac_sfb_info[3].sfb_index =
	ptr_aac_tables->sfb_long_table;

	ptr_aac_tables->str_aac_sfb_info[2].sfb_index =
	ptr_aac_tables->sfb_short_table;

	ptr_aac_tables->str_aac_sfb_info[0].sfb_width = (WORD8 *)psfb_width[0];
	ptr_aac_tables->str_aac_sfb_info[1].sfb_width = (WORD8 *)psfb_width[0];
	ptr_aac_tables->str_aac_sfb_info[3].sfb_width = (WORD8 *)psfb_width[0];

	ptr_aac_tables->str_aac_sfb_info[2].sfb_width = (WORD8 *)psfb_width[1];
	}
	} else {
	WORD16 *ptr_sfb_idx[2];
	const WORD8 *ptr_sfb_width[2];
	WORD width_idx;
	WORD32 j;

	ptr_sfb_idx[0] = ptr_aac_tables->sfb_long_table;
	ptr_sfb_idx[1] = ptr_aac_tables->sfb_short_table;

	if (frame_length == 512)
	ptr_sfb_width[0] = ptr_aac_tables->scale_fac_bands_512[i];
	else
	ptr_sfb_width[0] = ptr_aac_tables->scale_fac_bands_480[i];

	for (j = 0; j >= 0; j--) {
	const WORD8 *ptr_width = ptr_sfb_width[j];
	WORD16 *ptr_idx = ptr_sfb_idx[j];
	width_idx = 0;
	*ptr_idx++ = width_idx;
	do {
	width_idx += (*ptr_width++);
	*ptr_idx++ = width_idx;
	} while (*ptr_width != -1);

	aac_persistent_mem->str_aac_decoder.num_swb_window[j] =
	(WORD8)(ptr_width - ptr_sfb_width[j]);
	}

	{
	ptr_aac_tables->str_aac_sfb_info[0].sfb_index =
	ptr_aac_tables->sfb_long_table;
	ptr_aac_tables->str_aac_sfb_info[1].sfb_index =
	ptr_aac_tables->sfb_long_table;
	ptr_aac_tables->str_aac_sfb_info[3].sfb_index =
	ptr_aac_tables->sfb_long_table;
	ptr_aac_tables->str_aac_sfb_info[2].sfb_index =
	ptr_aac_tables->sfb_short_table;

	ptr_aac_tables->str_aac_sfb_info[0].sfb_width =
	(WORD8 *)ptr_sfb_width[0];
	ptr_aac_tables->str_aac_sfb_info[1].sfb_width =
	(WORD8 *)ptr_sfb_width[0];
	ptr_aac_tables->str_aac_sfb_info[3].sfb_width =
	(WORD8 *)ptr_sfb_width[0];
	ptr_aac_tables->str_aac_sfb_info[2].sfb_width =
	(WORD8 *)ptr_sfb_width[1];
	}
	}
	{
	ia_aac_decoder_struct *aac_dec_handle =
	&aac_persistent_mem->str_aac_decoder;
	aac_dec_handle->sampling_rate_index = (WORD16)i;
	aac_dec_handle->sampling_rate = sampling_rate;
	aac_dec_handle->channels = 1;
	aac_dec_handle->block_number = 0;
	aac_dec_handle->samples_per_frame = frame_length;
	}
	}

	return &(aac_persistent_mem->str_aac_decoder);
	}