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aosp12/external/libxaac/decoder/ixheaacd_initfuncs.c

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init from android-12.1.0_r8
2023-01-09 17:11:35 +08:00
/******************************************************************************
* *
* 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_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 ((i < num_entries) &&
sampling_rate != ((pstr_huffmann_tables->str_sample_rate_info[i]
.sampling_frequency))) {
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);
}