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libxaac/encoder/ixheaace_mps_enc.c
akshayragir833 58381f7993
Audio pre-roll and loudness measurement support for USAC (#79) 
Tests done: Smoke test
2024-03-06 15:13:14 +05:30

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/******************************************************************************
* *
* Copyright (C) 2023 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*****************************************************************************
* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
*/
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "ixheaac_type_def.h"
#include "impd_drc_common_enc.h"
#include "impd_drc_uni_drc.h"
#include "impd_drc_tables.h"
#include "impd_drc_api.h"
#include "ixheaace_api.h"
#include "ixheaac_error_standards.h"
#include "ixheaace_error_codes.h"
#include "ixheaace_mps_common_fix.h"
#include "ixheaace_mps_defines.h"
#include "ixheaace_mps_common_define.h"
#include "ixheaac_constants.h"
#include "ixheaace_bitbuffer.h"
#include "ixheaace_sbr_def.h"
#include "ixheaace_mps_buf.h"
#include "ixheaace_mps_lib.h"
#include "ixheaace_mps_main_structure.h"
#include "ixheaace_mps_bitstream.h"
#include "ixheaace_mps_onset_detect.h"
#include "ixheaace_mps_filter.h"
#include "ixheaace_mps_param_extract.h"
#include "ixheaace_mps_static_gain.h"
#include "ixheaace_mps_dmx_tdom_enh.h"
#include "ixheaace_mps_tools_rom.h"
#include "ixheaace_mps_qmf.h"
#include "ixheaace_mps_struct_def.h"
#include "ixheaace_mps_sac_polyphase.h"
#include "ixheaace_mps_sac_hybfilter.h"
#include "ixheaace_mps_spatial_bitstream.h"
#include "ixheaace_mps_tree.h"
#include "ixheaace_mps_rom.h"
#include "ixheaace_mps_delay.h"
#include "ixheaace_mps_frame_windowing.h"
#include "ixheaace_mps_structure.h"
#include "ixheaace_mps_memory.h"
#include "ixheaace_mps_enc.h"
#include "ixheaac_basic_ops32.h"
#include "ixheaac_basic_ops40.h"
#include "ixheaac_basic_ops.h"
static UWORD8 ixheaace_mps_212_space_get_num_qmf_bands(const UWORD32 num_sample_rate) {
UWORD8 num_qmf_bands = 0;
if (num_sample_rate < 27713)
num_qmf_bands = 32;
else if (num_sample_rate < 55426)
num_qmf_bands = 64;
return num_qmf_bands;
}
static VOID ixheaace_mps_212_space_tree_open(ixheaace_mps_pstr_space_tree *pstr_ph_space_tree,
ixheaace_mps_212_memory_struct *pstr_mps_memory) {
ixheaace_mps_pstr_space_tree pstr_space_tree = NULL;
WORD32 box;
pstr_space_tree = &pstr_mps_memory->spacce_tree;
for (box = 0; box < IXHEAACE_MPS_MAX_NUM_BOXES; box++) {
ixheaace_mps_pstr_tto_box pstr_tto_box = NULL;
pstr_tto_box = &pstr_mps_memory->tto_box;
if (NULL != pstr_space_tree) {
pstr_space_tree->pstr_tto_box[box] = pstr_tto_box;
}
}
*pstr_ph_space_tree = pstr_space_tree;
}
static VOID ixheaace_mps_212_init_num_param_bands(
ixheaace_mps_pstr_space_structure pstr_space_enc, const WORD32 num_param_bands) {
WORD32 k = 0;
const WORD32 n = sizeof(valid_bands_ld) / sizeof(UWORD8);
const UWORD8 *p_bands = valid_bands_ld;
while (k < n && p_bands[k] != (UWORD8)num_param_bands) ++k;
if (k == n) {
pstr_space_enc->num_param_bands = IXHEAACE_MPS_SAC_BANDS_INVALID;
} else {
pstr_space_enc->num_param_bands = num_param_bands;
}
}
static IA_ERRORCODE ixheaace_mps_212_configure(
ixheaace_mps_pstr_space_structure pstr_space_enc,
const ixheaace_mps_pstr_spece_enc_setup pstr_h_set_up) {
IA_ERRORCODE error = IA_NO_ERROR;
pstr_space_enc->num_sample_rate = pstr_h_set_up->sample_rate;
pstr_space_enc->num_qmf_bands =
ixheaace_mps_212_space_get_num_qmf_bands(pstr_space_enc->num_sample_rate);
pstr_space_enc->time_alignment = pstr_h_set_up->time_alignment;
pstr_space_enc->quant_mode = pstr_h_set_up->quant_mode;
pstr_space_enc->use_coarse_quant_cld = pstr_h_set_up->b_use_coarse_quant;
pstr_space_enc->use_coarse_quant_cpc = pstr_h_set_up->b_use_coarse_quant;
pstr_space_enc->use_frame_keep = (pstr_h_set_up->b_ld_mode == 2);
pstr_space_enc->use_coarse_quant_icc = 0;
pstr_space_enc->use_coarse_quant_arb_dmx = 0;
pstr_space_enc->independency_factor = pstr_h_set_up->independency_factor;
pstr_space_enc->independency_count = 0;
pstr_space_enc->independency_flag = 1;
pstr_space_enc->num_hybrid_bands = pstr_space_enc->num_qmf_bands;
pstr_space_enc->num_frame_time_slots = pstr_h_set_up->frame_time_slots;
ixheaace_mps_212_init_num_param_bands(pstr_space_enc, pstr_h_set_up->num_param_bands);
return error;
}
static WORD32 ixheaace_mps_212_get_analysis_length_time_slots(FLOAT32 *ptr_frame_window_ana,
WORD32 num_time_slots) {
WORD32 i;
for (i = num_time_slots - 1; i >= 0; i--) {
if (ptr_frame_window_ana[i] != 0) {
break;
}
}
num_time_slots = i + 1;
return num_time_slots;
}
static WORD32 ixheaace_mps_212_get_analysis_start_time_slot(FLOAT32 *ptr_frame_window_ana,
WORD32 num_time_slots) {
WORD32 start_time_slot = 0;
WORD32 i;
for (i = 0; i < num_time_slots; i++) {
if (ptr_frame_window_ana[i] != 0) {
break;
}
}
start_time_slot = i;
return start_time_slot;
}
static VOID ixheaace_mps_212_memcpy_flex_pcm(FLOAT32 *const ptr_dst, const WORD32 dst_stride,
const FLOAT32 *const ptr_src,
const WORD32 src_stride, const WORD32 num_samples) {
WORD32 i;
for (i = 0; i < num_samples; i++) {
ptr_dst[i * dst_stride] = ptr_src[i * src_stride];
}
}
static IA_ERRORCODE ixheaace_mps_212_feed_de_inter_pre_scale(
ixheaace_mps_pstr_space_structure pstr_space_enc, FLOAT32 const *const ptr_samples,
FLOAT32 *const ptr_output_samples, WORD32 const num_samples,
UWORD32 const is_input_inter_leaved, UWORD32 const input_buffer_size_per_channel,
UWORD32 *const ptr_n_samples_fed) {
IA_ERRORCODE error = IA_NO_ERROR;
WORD32 ch;
const WORD32 num_ch_in = pstr_space_enc->n_input_channels;
const WORD32 num_ch_in_with_dmx = num_ch_in;
const WORD32 samples_to_feed =
MIN(num_samples, pstr_space_enc->n_samples_next - pstr_space_enc->n_samples_valid);
const WORD32 num_samples_per_channel = samples_to_feed / num_ch_in_with_dmx;
if ((samples_to_feed < 0) || (samples_to_feed % num_ch_in_with_dmx != 0) ||
(samples_to_feed > num_ch_in_with_dmx * (WORD32)pstr_space_enc->n_frame_length)) {
return IA_EXHEAACE_CONFIG_NONFATAL_MPS_INVALID_CONFIG;
}
const FLOAT32 *p_input_mps;
const FLOAT32 *p_input_2_mps;
{
p_input_mps = ptr_samples;
p_input_2_mps = ptr_samples + (pstr_space_enc->n_input_delay * num_ch_in_with_dmx);
}
for (ch = 0; ch < num_ch_in; ch++) {
memcpy(&(pstr_space_enc->time_signal_in[ch][0]),
&(pstr_space_enc->time_signal_delay_in[ch][0]),
pstr_space_enc->n_surround_analysis_buffer_delay * sizeof(FLOAT32));
if (is_input_inter_leaved) {
ixheaace_mps_212_memcpy_flex_pcm(
&(pstr_space_enc->time_signal_in[ch][pstr_space_enc->n_surround_analysis_buffer_delay]),
1, p_input_mps + ch, num_ch_in_with_dmx, pstr_space_enc->n_input_delay);
ixheaace_mps_212_memcpy_flex_pcm(
&(pstr_space_enc->time_signal_in[ch][pstr_space_enc->n_surround_analysis_buffer_delay +
pstr_space_enc->n_input_delay]),
1, p_input_2_mps + ch, num_ch_in_with_dmx,
num_samples_per_channel - pstr_space_enc->n_input_delay);
} else {
memcpy(
&(pstr_space_enc->time_signal_in[ch][pstr_space_enc->n_surround_analysis_buffer_delay]),
p_input_mps + ch * input_buffer_size_per_channel,
pstr_space_enc->n_input_delay * sizeof(FLOAT32));
memcpy(
&(pstr_space_enc->time_signal_in[ch][pstr_space_enc->n_surround_analysis_buffer_delay +
pstr_space_enc->n_input_delay]),
p_input_2_mps + ch * input_buffer_size_per_channel,
(num_samples_per_channel - pstr_space_enc->n_input_delay) * sizeof(FLOAT32));
}
memcpy(&(pstr_space_enc->time_signal_delay_in[ch][0]),
&(pstr_space_enc->time_signal_in[ch][pstr_space_enc->n_frame_length]),
pstr_space_enc->n_surround_analysis_buffer_delay * sizeof(FLOAT32));
}
error = ixheaace_mps_212_apply_enhanced_time_domain_dmx(
pstr_space_enc->pstr_enhanced_time_dmx, pstr_space_enc->time_signal_in, ptr_output_samples,
pstr_space_enc->n_surround_analysis_buffer_delay);
if (error) {
return error;
}
pstr_space_enc->n_samples_valid += samples_to_feed;
*ptr_n_samples_fed = samples_to_feed;
return error;
}
static IA_ERRORCODE ixheaace_mps_212_init_delay_compensation(
ixheaace_mps_pstr_space_structure pstr_space_enc, const WORD32 core_coder_delay, WORD32 aot) {
IA_ERRORCODE error = IA_NO_ERROR;
WORD32 i;
memset(&pstr_space_enc->pstr_delay->delay_config, 0,
sizeof(pstr_space_enc->pstr_delay->delay_config));
pstr_space_enc->core_coder_delay = core_coder_delay;
pstr_space_enc->pstr_delay->delay_config.num_qmf_len = pstr_space_enc->num_qmf_bands;
pstr_space_enc->pstr_delay->delay_config.num_frame_len = pstr_space_enc->n_frame_length;
pstr_space_enc->pstr_delay->delay_config.num_core_coder_delay = core_coder_delay;
pstr_space_enc->pstr_delay->delay_config.num_sac_stream_mux_delay =
pstr_space_enc->time_alignment;
pstr_space_enc->pstr_delay->delay_config.b_dmx_align = 0;
pstr_space_enc->pstr_delay->delay_config.b_minimize_delay = 1;
ixheaace_mps_212_delay_sub_calculate_buffer_delays(pstr_space_enc->pstr_delay);
pstr_space_enc->n_bitstream_delay_buffer =
pstr_space_enc->pstr_delay->num_bitstream_frame_buffer_size;
pstr_space_enc->n_output_buffer_delay = pstr_space_enc->pstr_delay->num_output_audio_buffer;
pstr_space_enc->n_surround_analysis_buffer_delay =
pstr_space_enc->pstr_delay->num_surround_analysis_buffer;
pstr_space_enc->n_bitstream_buffer_read = 0;
pstr_space_enc->n_bitstream_buffer_write = pstr_space_enc->n_bitstream_delay_buffer - 1;
pstr_space_enc->num_discard_out_frames = pstr_space_enc->pstr_delay->num_discard_out_frames;
pstr_space_enc->n_input_delay = pstr_space_enc->pstr_delay->num_dmx_align_buffer;
pstr_space_enc->independency_count = 0;
pstr_space_enc->independency_flag = 1;
for (i = 0; i < pstr_space_enc->n_bitstream_delay_buffer - 1; i++) {
ixheaace_mps_spatial_frame *pstr_frame_data = NULL;
pstr_frame_data = &pstr_space_enc->pstr_bitstream_formatter->frame;
pstr_frame_data->bs_independency_flag = 1;
pstr_frame_data->framing_info.num_param_sets = 1;
pstr_frame_data->framing_info.bs_framing_type = 0;
error = ixheaace_mps_212_write_spatial_frame(
pstr_space_enc->bit_stream_delay_buffer[i], MAX_MPEGS_BYTES,
&pstr_space_enc->pn_output_bits[i], pstr_space_enc->pstr_bitstream_formatter, aot);
if (error) {
return error;
}
}
if ((pstr_space_enc->n_input_delay > MAX_DELAY_INPUT) ||
(pstr_space_enc->n_output_buffer_delay > MAX_DELAY_OUTPUT) ||
(pstr_space_enc->n_surround_analysis_buffer_delay > MAX_DELAY_SURROUND_ANALYSIS) ||
(pstr_space_enc->n_bitstream_delay_buffer > MAX_BITSTREAM_DELAY)) {
return IA_EXHEAACE_INIT_FATAL_MPS_INIT_FAILED;
}
return error;
}
static IA_ERRORCODE ixheaace_mps_212_fill_spatial_specific_config(
const ixheaace_mps_pstr_space_structure pstr_space_enc,
ixheaace_mps_spatial_specific_config *const pstr_h_ssc) {
IA_ERRORCODE error = IA_NO_ERROR;
ixheaace_mps_space_tree_description space_tree_description;
WORD32 i;
space_tree_description = pstr_space_enc->pstr_space_tree->descr;
memset(pstr_h_ssc, 0, sizeof(ixheaace_mps_spatial_specific_config));
pstr_h_ssc->num_bands = pstr_space_enc->space_tree_setup.num_param_bands;
pstr_h_ssc->tree_description.num_ott_boxes = space_tree_description.num_ott_boxes;
pstr_h_ssc->tree_description.num_in_chan = space_tree_description.num_in_channels;
pstr_h_ssc->tree_description.num_out_chan = space_tree_description.num_out_channels;
for (i = 0; i < IXHEAACE_MPS_MAX_NUM_BOXES; i++) {
pstr_h_ssc->ott_config[i].bs_ott_bands = pstr_h_ssc->num_bands;
}
pstr_h_ssc->bs_tree_config = IXHEAACE_MPS_TREE_212;
pstr_h_ssc->bs_sampling_frequency = pstr_space_enc->num_sample_rate;
pstr_h_ssc->bs_frame_length = pstr_space_enc->num_frame_time_slots - 1;
pstr_h_ssc->bs_decorr_config = IXHEAACE_MPS_DECORR_QMFSPLIT0;
pstr_h_ssc->bs_quant_mode = pstr_space_enc->quant_mode;
if (pstr_space_enc->pstr_static_gain->fixed_gain_dmx > IXHEAACE_MPS_MAX_FIXED_GAIN_DMX) {
pstr_h_ssc->bs_fixed_gain_dmx = IXHEAACE_MPS_FIXED_GAIN_DMX_INVALID;
} else {
pstr_h_ssc->bs_fixed_gain_dmx = pstr_space_enc->pstr_static_gain->fixed_gain_dmx;
}
pstr_h_ssc->bs_env_quant_mode = 0;
return error;
}
static IA_ERRORCODE ixheaace_mps_212_fill_space_tree_setup(
const ixheaace_mps_pstr_space_structure pstr_space_enc,
ixheaace_mps_space_tree_setup *const ptr_space_tree_setup) {
IA_ERRORCODE error = IA_NO_ERROR;
ptr_space_tree_setup->num_param_bands = pstr_space_enc->num_param_bands;
ptr_space_tree_setup->use_coarse_quant_tto_cld_flag = pstr_space_enc->use_coarse_quant_cld;
ptr_space_tree_setup->use_coarse_quant_tto_icc_flag = pstr_space_enc->use_coarse_quant_icc;
ptr_space_tree_setup->quant_mode = pstr_space_enc->quant_mode;
ptr_space_tree_setup->num_hybrid_bands_max = pstr_space_enc->num_hybrid_bands;
ptr_space_tree_setup->num_channels_in_max = 2;
return error;
}
static VOID ixheaace_mps_212_get_info(const ixheaace_mps_pstr_space_structure pstr_space_enc,
ixheaace_mps_space_info *const pstr_space_info) {
pstr_space_info->num_sample_rate = pstr_space_enc->num_sample_rate;
pstr_space_info->num_samples_frame = pstr_space_enc->n_frame_length;
pstr_space_info->num_total_input_channels = pstr_space_enc->n_input_channels;
pstr_space_info->dmx_delay = pstr_space_enc->pstr_delay->num_info_dmx_delay;
pstr_space_info->codec_delay = pstr_space_enc->pstr_delay->num_info_codec_delay;
pstr_space_info->decoder_delay = pstr_space_enc->pstr_delay->num_info_decoder_delay;
pstr_space_info->pay_load_delay =
pstr_space_enc->pstr_delay->num_bitstream_frame_buffer_size - 1;
pstr_space_info->num_discard_out_frames = pstr_space_enc->num_discard_out_frames;
pstr_space_info->p_ssc_buf = &pstr_space_enc->ssc_buf;
}
static VOID ixheaace_mps_212_duplicate_parameter_set(
const ixheaace_mps_spatial_frame *const pstr_spatial_frame_from, const WORD32 set_from,
ixheaace_mps_spatial_frame *const pstr_spatial_frame_to, const WORD32 set_to) {
WORD32 box;
for (box = 0; box < IXHEAACE_MPS_MAX_NUM_BOXES; box++) {
memcpy(pstr_spatial_frame_to->ott_data.cld[box][set_to],
pstr_spatial_frame_from->ott_data.cld[box][set_from],
sizeof(pstr_spatial_frame_from->ott_data.cld[0][0]));
pstr_spatial_frame_to->cld_lossless_data.bs_xxx_data_mode[box][set_to] =
pstr_spatial_frame_from->cld_lossless_data.bs_xxx_data_mode[box][set_from];
pstr_spatial_frame_to->cld_lossless_data.bs_data_pair[box][set_to] =
pstr_spatial_frame_from->cld_lossless_data.bs_data_pair[box][set_from];
pstr_spatial_frame_to->cld_lossless_data.bs_quant_coarse_xxx[box][set_to] =
pstr_spatial_frame_from->cld_lossless_data.bs_quant_coarse_xxx[box][set_from];
pstr_spatial_frame_to->cld_lossless_data.bs_freq_res_stride_xxx[box][set_to] =
pstr_spatial_frame_from->cld_lossless_data.bs_freq_res_stride_xxx[box][set_from];
memcpy(pstr_spatial_frame_to->ott_data.icc[box][set_to],
pstr_spatial_frame_from->ott_data.icc[box][set_from],
sizeof(pstr_spatial_frame_from->ott_data.icc[0][0]));
pstr_spatial_frame_to->icc_lossless_data.bs_xxx_data_mode[box][set_to] =
pstr_spatial_frame_from->icc_lossless_data.bs_xxx_data_mode[box][set_from];
pstr_spatial_frame_to->icc_lossless_data.bs_data_pair[box][set_to] =
pstr_spatial_frame_from->icc_lossless_data.bs_data_pair[box][set_from];
pstr_spatial_frame_to->icc_lossless_data.bs_quant_coarse_xxx[box][set_to] =
pstr_spatial_frame_from->icc_lossless_data.bs_quant_coarse_xxx[box][set_from];
pstr_spatial_frame_to->icc_lossless_data.bs_freq_res_stride_xxx[box][set_to] =
pstr_spatial_frame_from->icc_lossless_data.bs_freq_res_stride_xxx[box][set_from];
}
}
static IA_ERRORCODE ixheaace_mps_212_encode(
const ixheaace_mps_pstr_space_structure pstr_space_enc,
const ixheaace_mps_buf_descr *ptr_in_buf_desc, const ixheaace_mps_buf_descr *ptr_out_buf_desc,
const ixheaace_mps_in_args *pstr_in_args, ixheaace_mps_out_args *pstr_out_args, WORD32 aot,
WORD8 *ptr_scratch) {
IA_ERRORCODE error = IA_NO_ERROR;
WORD32 num_output_samples;
WORD32 i, ch, ps, win_cnt, ts, slot;
WORD32 curr_trans_pos = -1;
WORD32 num_ch_in;
WORD32 num_ch_in_with_dmx;
WORD32 num_ch_out;
WORD32 num_samples_per_channel;
WORD32 num_output_samples_max;
WORD32 num_frame_time_slots;
WORD32 num_frame_time_slots_reduction;
ixheaace_mps_spatial_frame *pstr_frame_data = NULL;
UWORD8 *ptr_bitstream_delay_buffer;
const FLOAT32 *ptr_input_samples =
(const FLOAT32 *)ptr_in_buf_desc->pp_base[IXHEAACE_MPS_INPUT_BUFFER_IDX];
FLOAT32 *const ptr_output_samples =
(FLOAT32 *)ptr_out_buf_desc->pp_base[IXHEAACE_MPS_OUTUT_BUFFER_IDX];
const WORD32 num_output_samples_buffer_size =
ptr_out_buf_desc->p_buf_size[IXHEAACE_MPS_OUTUT_BUFFER_IDX] /
ptr_out_buf_desc->p_ele_size[IXHEAACE_MPS_OUTUT_BUFFER_IDX];
num_ch_in = pstr_space_enc->n_input_channels;
num_ch_in_with_dmx = num_ch_in;
num_ch_out = pstr_space_enc->n_output_channels;
num_samples_per_channel = pstr_in_args->num_input_samples / num_ch_in_with_dmx;
num_output_samples_max = num_samples_per_channel * num_ch_out;
num_frame_time_slots = pstr_space_enc->num_frame_time_slots;
num_frame_time_slots_reduction = pstr_space_enc->num_frame_time_slots >> 1;
if ((0 != pstr_in_args->num_input_samples % num_ch_in_with_dmx)) {
return IA_EXHEAACE_CONFIG_NONFATAL_MPS_INVALID_CONFIG;
}
pstr_frame_data = &pstr_space_enc->pstr_bitstream_formatter->frame;
if (aot != AOT_USAC) {
if (pstr_space_enc->num_discard_out_frames > 0) {
pstr_space_enc->independency_count = 0;
pstr_space_enc->independency_flag = 1;
} else {
pstr_space_enc->independency_flag = (pstr_space_enc->independency_count == 0) ? 1 : 0;
if (pstr_space_enc->independency_factor > 0) {
pstr_space_enc->independency_count++;
pstr_space_enc->independency_count =
pstr_space_enc->independency_count % ((WORD32)pstr_space_enc->independency_factor);
} else {
pstr_space_enc->independency_count = -1;
}
}
}
error = ixheaace_mps_212_feed_de_inter_pre_scale(
pstr_space_enc, ptr_input_samples, ptr_output_samples, pstr_in_args->num_input_samples,
pstr_in_args->is_input_inter_leaved, pstr_in_args->input_buffer_size_per_channel,
&pstr_out_args->num_samples_consumed);
if (error) {
return error;
}
if (pstr_space_enc->n_samples_next != pstr_space_enc->n_samples_valid) {
return IA_EXHEAACE_CONFIG_NONFATAL_MPS_INVALID_CONFIG;
}
for (ch = 0; ch < num_ch_in; ch++) {
for (slot = 0; slot < num_frame_time_slots; slot++) {
ixheaace_cmplx_str *pstr_cmplx_data;
pstr_cmplx_data =
pstr_space_enc
->cmplx_hybrid_in[ch][pstr_space_enc->n_update_hybrid_position_time_slots +
num_frame_time_slots - num_frame_time_slots_reduction + slot];
memset(pstr_cmplx_data, 0, 2 * pstr_space_enc->num_hybrid_bands * sizeof(WORD32));
}
}
for (ch = 0; ch < num_ch_in; ch++) {
FLOAT32 qmf_in_real[MAX_QMF_BANDS];
FLOAT32 qmf_in_imag[MAX_QMF_BANDS];
FLOAT32 p_work_buffer[MAX_QMF_BANDS << 1];
FLOAT32 *ptr_pre_gain = pstr_space_enc->pstr_static_gain->pre_gain;
for (ts = 0; ts < num_frame_time_slots; ts++) {
FLOAT32 *ptr_spec_real;
FLOAT32 *ptr_spec_imag;
FLOAT32 *ptr_time_in =
&pstr_space_enc->time_signal_in[ch][(ts * pstr_space_enc->num_qmf_bands)];
ixheaace_mps_212_apply_dc_filter(pstr_space_enc->pstr_dc_filter[ch], ptr_time_in,
ptr_time_in, pstr_space_enc->num_qmf_bands);
error = ixheaace_mps_212_qmf_analysis_filtering_slot(pstr_space_enc->pstr_qmf_filter_in[ch],
qmf_in_real, qmf_in_imag, ptr_time_in,
1, p_work_buffer, ptr_scratch);
if (error != IA_NO_ERROR) {
return error;
}
ptr_spec_real = qmf_in_real;
ptr_spec_imag = qmf_in_imag;
if (1.0f != ptr_pre_gain[ch]) {
for (i = 0; i < pstr_space_enc->num_hybrid_bands; i++) {
pstr_space_enc
->cmplx_hybrid_in[ch][pstr_space_enc->n_analysis_lookahead_time_slots + ts][i]
.re = ptr_spec_real[i] * ptr_pre_gain[ch];
pstr_space_enc
->cmplx_hybrid_in[ch][pstr_space_enc->n_analysis_lookahead_time_slots + ts][i]
.im = ptr_spec_imag[i] * ptr_pre_gain[ch];
}
} else {
for (i = 0; i < pstr_space_enc->num_hybrid_bands; i++) {
pstr_space_enc
->cmplx_hybrid_in[ch][pstr_space_enc->n_analysis_lookahead_time_slots + ts][i]
.re = ptr_spec_real[i];
pstr_space_enc
->cmplx_hybrid_in[ch][pstr_space_enc->n_analysis_lookahead_time_slots + ts][i]
.im = ptr_spec_imag[i];
}
}
}
}
for (ch = 0; ch < num_ch_in; ch++) {
for (slot = 0; slot < (WORD32)(pstr_space_enc->n_update_hybrid_position_time_slots +
num_frame_time_slots - num_frame_time_slots_reduction);
slot++) {
memmove(pstr_space_enc->cmplx_hybrid_in[ch][slot],
pstr_space_enc->cmplx_hybrid_in_static[ch][slot],
sizeof(ixheaace_cmplx_str) * pstr_space_enc->num_hybrid_bands);
}
for (slot = 0; slot < (WORD32)(pstr_space_enc->n_update_hybrid_position_time_slots +
num_frame_time_slots - num_frame_time_slots_reduction);
slot++) {
memmove(pstr_space_enc->cmplx_hybrid_in_static[ch][slot],
pstr_space_enc->cmplx_hybrid_in[ch][num_frame_time_slots + slot],
sizeof(ixheaace_cmplx_str) * pstr_space_enc->num_hybrid_bands);
}
error = ixheaace_mps_212_onset_detect_apply(
pstr_space_enc->pstr_onset_detect[ch], num_frame_time_slots,
&pstr_space_enc->cmplx_hybrid_in[ch][pstr_space_enc->n_analysis_lookahead_time_slots],
pstr_space_enc->tr_prev_pos[1], pstr_space_enc->pp_tr_curr_pos[ch]);
if (error) {
return error;
}
if (pstr_space_enc->use_frame_keep == 0) {
pstr_space_enc->pp_tr_curr_pos[ch][0] = -1;
}
if ((pstr_space_enc->pp_tr_curr_pos[ch][0] >= 0) &&
((curr_trans_pos < 0) || (pstr_space_enc->pp_tr_curr_pos[ch][0] < curr_trans_pos))) {
curr_trans_pos = pstr_space_enc->pp_tr_curr_pos[ch][0];
}
}
if (pstr_space_enc->use_frame_keep == 1) {
if ((curr_trans_pos != -1) || (pstr_space_enc->independency_flag == 1)) {
pstr_space_enc->avoid_keep = NUM_KEEP_WINDOWS;
curr_trans_pos = -1;
}
}
pstr_space_enc->tr_prev_pos[0] = MAX(-1, pstr_space_enc->tr_prev_pos[1] - num_frame_time_slots);
pstr_space_enc->tr_prev_pos[1] = curr_trans_pos;
for (ch = 0; ch < num_ch_in; ch++) {
error = ixheaace_mps_212_onset_detect_update(pstr_space_enc->pstr_onset_detect[ch],
num_frame_time_slots);
if (error) {
return error;
}
}
ixheaace_mps_212_frame_window_get_window(
pstr_space_enc->h_frame_window, pstr_space_enc->tr_prev_pos, num_frame_time_slots,
&pstr_frame_data->framing_info, pstr_space_enc->ptr_frame_window_ana,
&pstr_space_enc->frame_win_list, pstr_space_enc->avoid_keep);
for (ps = 0, win_cnt = 0; ps < pstr_space_enc->frame_win_list.win_list_cnt; ++ps) {
if (pstr_space_enc->frame_win_list.dat[ps].hold == IXHEAACE_MPS_FRAME_WINDOWING_HOLD) {
ixheaace_mps_212_duplicate_parameter_set(&pstr_space_enc->save_frame, 0, pstr_frame_data,
ps);
} else {
WORD32 num_analysis_length_time_slots, analysis_start_time_slot;
FLOAT32 *ptr_frame_window_ana;
num_analysis_length_time_slots = ixheaace_mps_212_get_analysis_length_time_slots(
pstr_space_enc->ptr_frame_window_ana[win_cnt],
pstr_space_enc->num_analysis_length_time_slots);
analysis_start_time_slot = ixheaace_mps_212_get_analysis_start_time_slot(
pstr_space_enc->ptr_frame_window_ana[win_cnt],
pstr_space_enc->num_analysis_length_time_slots);
ptr_frame_window_ana = pstr_space_enc->ptr_frame_window_ana[win_cnt];
error = ixheaace_mps_212_space_tree_apply(
pstr_space_enc->pstr_space_tree, ps, num_ch_in, num_analysis_length_time_slots,
analysis_start_time_slot, pstr_space_enc->num_hybrid_bands, ptr_frame_window_ana,
pstr_space_enc->cmplx_hybrid_in, pstr_space_enc->cmplx_hybrid_in, pstr_frame_data,
pstr_space_enc->avoid_keep);
if (error) {
return error;
}
ixheaace_mps_212_duplicate_parameter_set(pstr_frame_data, ps, &pstr_space_enc->save_frame,
0);
++win_cnt;
}
if (pstr_space_enc->avoid_keep > 0) {
pstr_space_enc->avoid_keep--;
}
}
memset(&pstr_frame_data->smg_data, 0, sizeof(pstr_frame_data->smg_data));
ptr_bitstream_delay_buffer =
(UWORD8 *)ptr_out_buf_desc->pp_base[IXHEAACE_MPS_BITSTREAM_BUFFER_IDX];
pstr_frame_data->bs_independency_flag = pstr_space_enc->independency_flag;
error = ixheaace_mps_212_write_spatial_frame(
ptr_bitstream_delay_buffer, MAX_MPEGS_BYTES,
&pstr_space_enc->pn_output_bits[pstr_space_enc->n_bitstream_buffer_write],
pstr_space_enc->pstr_bitstream_formatter, aot);
if (error) {
return error;
}
if ((pstr_space_enc->num_discard_out_frames == 0) &&
(IXHEAACE_MPS_BITSTREAM_BUFFER_IDX != -1)) {
const WORD32 idx = IXHEAACE_MPS_BITSTREAM_BUFFER_IDX;
const WORD32 out_bits =
pstr_space_enc->pn_output_bits[pstr_space_enc->n_bitstream_buffer_read];
if (((out_bits + 7) / 8) >
(WORD32)(ptr_out_buf_desc->p_buf_size[idx] / ptr_out_buf_desc->p_ele_size[idx])) {
pstr_out_args->num_output_bits = 0;
return IA_EXHEAACE_EXE_NONFATAL_MPS_ENCODE_ERROR;
}
pstr_out_args->num_output_bits = out_bits;
} else {
pstr_out_args->num_output_bits = 0;
}
pstr_space_enc->n_bitstream_buffer_read =
(pstr_space_enc->n_bitstream_buffer_read + 1) % pstr_space_enc->n_bitstream_delay_buffer;
pstr_space_enc->n_bitstream_buffer_write =
(pstr_space_enc->n_bitstream_buffer_write + 1) % pstr_space_enc->n_bitstream_delay_buffer;
num_output_samples =
(pstr_space_enc->num_discard_out_frames == 0) ? (num_output_samples_max) : 0;
if (num_output_samples > num_output_samples_buffer_size) {
return IA_EXHEAACE_CONFIG_NONFATAL_MPS_INVALID_CONFIG;
}
pstr_out_args->num_output_samples = num_output_samples;
if (pstr_space_enc->num_discard_out_frames > 0) {
pstr_space_enc->num_discard_out_frames--;
}
pstr_space_enc->n_samples_valid = 0;
return error;
}
static IA_ERRORCODE ixheaace_mps_212_init(ixheaace_mps_pstr_space_structure pstr_space_enc,
const WORD32 dmx_delay, WORD32 aot) {
IA_ERRORCODE error = IA_NO_ERROR;
WORD32 ch;
WORD32 num_ch_in_arb_dmx;
ixheaace_mps_space_tree_description space_tree_description;
ixheaace_mps_onset_detect_config onset_detect_config;
ixheaace_mps_frame_win_config frame_window_config;
error = ixheaace_mps_212_configure(pstr_space_enc, &pstr_space_enc->user);
if (error) {
return error;
}
pstr_space_enc->b_enc_mode_212_only = pstr_space_enc->setup->b_enc_mode_212;
if (pstr_space_enc->num_frame_time_slots < 1) {
return IA_EXHEAACE_CONFIG_NONFATAL_MPS_INVALID_CONFIG;
}
pstr_space_enc->n_frame_length =
pstr_space_enc->num_qmf_bands * pstr_space_enc->num_frame_time_slots;
if (pstr_space_enc->use_frame_keep == 1) {
pstr_space_enc->num_analysis_length_time_slots = 3 * pstr_space_enc->num_frame_time_slots;
pstr_space_enc->n_update_hybrid_position_time_slots = pstr_space_enc->num_frame_time_slots;
} else {
pstr_space_enc->num_analysis_length_time_slots = 2 * pstr_space_enc->num_frame_time_slots;
pstr_space_enc->n_update_hybrid_position_time_slots = 0;
}
pstr_space_enc->n_analysis_lookahead_time_slots =
pstr_space_enc->num_analysis_length_time_slots -
3 * pstr_space_enc->num_frame_time_slots / 2;
ixheaace_mps_212_calc_parameter_band_to_hybrid_band_offset(
pstr_space_enc->num_hybrid_bands, pstr_space_enc->ptr_parameter_band_2_hybrid_band_offset,
aot);
error =
ixheaace_mps_212_fill_space_tree_setup(pstr_space_enc, &pstr_space_enc->space_tree_setup);
if (error) {
return error;
}
error = ixheaace_mps_212_space_tree_init(
pstr_space_enc->pstr_space_tree, &pstr_space_enc->space_tree_setup,
pstr_space_enc->ptr_parameter_band_2_hybrid_band_offset, pstr_space_enc->use_frame_keep,
aot);
if (error) {
return error;
}
space_tree_description = pstr_space_enc->pstr_space_tree->descr;
pstr_space_enc->n_input_channels = space_tree_description.num_out_channels;
pstr_space_enc->n_output_channels = space_tree_description.num_in_channels;
frame_window_config.num_time_slots_max = pstr_space_enc->num_frame_time_slots;
frame_window_config.frame_keep_flag = pstr_space_enc->use_frame_keep;
onset_detect_config.max_time_slots = pstr_space_enc->num_frame_time_slots;
onset_detect_config.lower_bound_onset_detection =
((2 * 1725 * pstr_space_enc->num_qmf_bands) / pstr_space_enc->num_sample_rate);
onset_detect_config.upper_bound_onset_detection = pstr_space_enc->num_hybrid_bands;
num_ch_in_arb_dmx = 0;
for (ch = 0; ch < pstr_space_enc->n_input_channels; ch++) {
ixheaace_mps_212_qmf_init_filter_bank(
pstr_space_enc->pstr_qmf_filter_in[ch],
pstr_space_enc->pstr_qmf_filter_in[ch]->ptr_filter_states, 1,
pstr_space_enc->num_qmf_bands, pstr_space_enc->num_qmf_bands,
pstr_space_enc->num_qmf_bands);
if (error) {
return error;
}
ixheaace_mps_212_init_dc_filter(pstr_space_enc->pstr_dc_filter[ch],
pstr_space_enc->num_sample_rate);
error = ixheaace_mps_212_onset_detect_init(pstr_space_enc->pstr_onset_detect[ch],
&onset_detect_config, 1);
if (error) {
return error;
}
}
error =
ixheaace_mps_212_frame_window_init(pstr_space_enc->h_frame_window, &frame_window_config);
if (error) {
return error;
}
error = ixheaace_mps_212_static_gain_init(pstr_space_enc->pstr_static_gain,
pstr_space_enc->pstr_static_gain_config);
if (error) {
return error;
}
error = ixheaace_mps_212_init_enhanced_time_domain_dmx(
pstr_space_enc->pstr_enhanced_time_dmx, pstr_space_enc->pstr_static_gain->pre_gain,
pstr_space_enc->pstr_static_gain->post_gain, pstr_space_enc->n_frame_length);
if (error) {
return error;
}
memset(pstr_space_enc->pstr_bitstream_formatter, 0, sizeof(ixheaace_mps_spatial_frame));
pstr_space_enc->pstr_bitstream_formatter->frame.bs_independency_flag = 1;
pstr_space_enc->pstr_bitstream_formatter->frame.framing_info.num_param_sets = 1;
error = ixheaace_mps_212_fill_spatial_specific_config(
pstr_space_enc, &pstr_space_enc->pstr_bitstream_formatter->spatial_specific_config);
if (error) {
return error;
}
error = ixheaace_mps_212_write_spatial_specific_config(
&pstr_space_enc->pstr_bitstream_formatter->spatial_specific_config,
pstr_space_enc->ssc_buf.ptr_ssc, MAX_SSC_BYTES, &pstr_space_enc->ssc_buf.num_ssc_size_bits,
aot);
if (error) {
return error;
}
error = ixheaace_mps_212_init_delay_compensation(pstr_space_enc, dmx_delay, aot);
if (error) {
return error;
}
pstr_space_enc->n_samples_next =
pstr_space_enc->n_frame_length * (pstr_space_enc->n_input_channels + num_ch_in_arb_dmx);
pstr_space_enc->n_samples_valid = 0;
return error;
}
static VOID ixheaace_mps_open(ixheaace_mps_pstr_space_structure *pstr_space_enc_structure,
ixheaace_mps_212_memory_struct *pstr_mps_memory) {
WORD32 ch;
WORD32 param;
ixheaace_mps_pstr_space_structure pstr_space_enc = NULL;
pstr_space_enc = &pstr_mps_memory->mp4_space_encoder_instance;
if (NULL != pstr_space_enc) {
memset(pstr_space_enc, 0, sizeof(struct ixheaace_mps_space_structure));
}
pstr_space_enc->setup = &pstr_mps_memory->setup;
pstr_space_enc->setup->max_sampling_rate = MAX_SAMPLING_RATE;
pstr_space_enc->setup->max_frame_time_slots = MAX_FRAME_TIME_SLOT;
pstr_space_enc->setup->max_analysis_length_time_slots =
3 * pstr_space_enc->setup->max_frame_time_slots;
pstr_space_enc->setup->max_qmf_bands =
ixheaace_mps_212_space_get_num_qmf_bands(pstr_space_enc->setup->max_sampling_rate);
pstr_space_enc->setup->max_hybrid_bands = pstr_space_enc->setup->max_qmf_bands;
pstr_space_enc->setup->max_frame_length =
pstr_space_enc->setup->max_qmf_bands * pstr_space_enc->setup->max_frame_time_slots;
pstr_space_enc->setup->max_ch_in = 2;
pstr_space_enc->setup->max_ch_out = 1;
pstr_space_enc->setup->max_ch_tot_out = pstr_space_enc->setup->max_ch_out;
pstr_space_enc->setup->b_enc_mode_212 = 1;
pstr_space_enc->setup->max_hybrid_in_static_slots = 24;
pstr_space_enc->pstr_static_gain_config = &pstr_mps_memory->static_gain_config;
pstr_space_enc->pstr_enhanced_time_dmx = &pstr_mps_memory->enhanced_time_dmx;
pstr_space_enc->pstr_enhanced_time_dmx->sinus_window = pstr_mps_memory->sinus_window_flt;
pstr_space_enc->ptr_parameter_band_2_hybrid_band_offset =
pstr_mps_memory->parameter_band_2_hybrid_band_offset;
ixheaace_mps_212_space_tree_open(&pstr_space_enc->pstr_space_tree, pstr_mps_memory);
pstr_space_enc->pstr_qmf_filter_in = pstr_mps_memory->pstr_qmf_filter_bank;
for (ch = 0; ch < pstr_space_enc->setup->max_ch_in; ch++) {
pstr_space_enc->pstr_qmf_filter_in[ch] = &pstr_mps_memory->qmf_filter_bank[ch];
pstr_space_enc->pstr_qmf_filter_in[ch]->ptr_filter_states =
&pstr_mps_memory->ptr_filter_states[ch];
pstr_space_enc->pstr_dc_filter[ch] = &pstr_mps_memory->dc_filter[ch];
pstr_space_enc->pstr_onset_detect[ch] = &pstr_mps_memory->onset_detect[ch];
pstr_space_enc->pstr_onset_detect[ch]->p_energy_hist =
&pstr_mps_memory->energy_hist_float[ch][0];
}
pstr_space_enc->h_frame_window = &pstr_mps_memory->frame_window;
pstr_space_enc->pstr_static_gain = &pstr_mps_memory->static_gain;
pstr_space_enc->pstr_bitstream_formatter = &pstr_mps_memory->bitstream;
pstr_space_enc->ssc_buf.ptr_ssc = pstr_mps_memory->ssc;
pstr_space_enc->pstr_delay = &pstr_mps_memory->delay;
pstr_space_enc->pn_output_bits = pstr_mps_memory->n_output_bits;
for (param = 0; param < MAX_NUM_PARAMS; param++) {
pstr_space_enc->ptr_frame_window_ana[param] =
&pstr_mps_memory->frame_window_ana_flt[param][0];
}
pstr_space_enc->pstr_enhanced_time_dmx->max_frame_length =
pstr_space_enc->setup->max_frame_length;
for (ch = 0; ch < pstr_space_enc->setup->max_ch_in; ch++) {
pstr_space_enc->pstr_onset_detect[ch]->max_time_slots =
pstr_space_enc->setup->max_frame_time_slots;
pstr_space_enc->pstr_onset_detect[ch]->min_trans_dist = 8;
pstr_space_enc->pstr_onset_detect[ch]->avg_energy_dist = 16;
pstr_space_enc->pstr_onset_detect[ch]->avg_energy_dist_scale = 4;
}
pstr_space_enc->pstr_static_gain_config->fixed_gain_dmx = IXHEAACE_MPS_DMX_GAIN_DEFAULT;
pstr_space_enc->pstr_static_gain_config->pre_gain_factor_db = 0;
if (NULL != pstr_space_enc_structure) {
*pstr_space_enc_structure = pstr_space_enc;
}
}
static WORD32 ixheaace_mps_212_get_closest_bit_rate(const WORD32 audio_object_type,
const UWORD32 sampling_rate,
const UWORD32 sbr_ratio, UWORD32 bitrate) {
UWORD32 idx;
WORD32 target_bitrate = -1;
for (idx = 0; idx < sizeof(mps_config_tab) / sizeof(ixheaace_mps_config_table); idx++) {
if ((mps_config_tab[idx].sampling_rate == sampling_rate) &&
(mps_config_tab[idx].audio_object_type == audio_object_type) &&
(mps_config_tab[idx].sbr_ratio == sbr_ratio)) {
target_bitrate =
MIN(MAX(bitrate, mps_config_tab[idx].bitrate_min), mps_config_tab[idx].bitrate_max);
}
}
return target_bitrate;
}
static WORD32 ixheaace_mps_212_write_spatial_specific_config_data(
ixheaace_mps_pstr_struct pstr_mps_enc, ixheaace_bit_buf_handle pstr_bit_buf) {
WORD32 idx;
WORD32 ssc_bits = 0;
WORD32 written_bits = 0;
ixheaace_mps_space_info pstr_space_encoder_info;
ixheaace_mps_212_get_info(pstr_mps_enc->ptr_sac_encoder, &pstr_space_encoder_info);
for (idx = 0; idx<pstr_space_encoder_info.p_ssc_buf->num_ssc_size_bits>> 3; idx++) {
ixheaace_write_bits(pstr_bit_buf, pstr_space_encoder_info.p_ssc_buf->ptr_ssc[idx], 8);
written_bits += 8;
}
ixheaace_write_bits(
pstr_bit_buf, pstr_space_encoder_info.p_ssc_buf->ptr_ssc[idx],
(UWORD8)(pstr_space_encoder_info.p_ssc_buf->num_ssc_size_bits - written_bits));
ssc_bits = pstr_space_encoder_info.p_ssc_buf->num_ssc_size_bits;
return ssc_bits;
}
VOID ixheaace_mps_212_open(VOID **pstr_handle_mps,
ixheaace_mps_212_memory_struct *pstr_mps_memory) {
ixheaace_mps_pstr_struct pstr_mps_enc = NULL;
pstr_mps_enc = &pstr_mps_memory->mps_encoder_instance;
memset(pstr_mps_enc, 0, sizeof(ixheaace_mps_struct));
ixheaace_mps_open(&pstr_mps_enc->ptr_sac_encoder, pstr_mps_memory);
*pstr_handle_mps = pstr_mps_enc;
}
VOID ixheaace_mps_212_close(VOID **pstr_handle_mps) {
ixheaace_mps_pstr_struct *pstr_mps_enc = (ixheaace_mps_pstr_struct *)pstr_handle_mps;
if (*pstr_mps_enc != NULL) {
*pstr_mps_enc = NULL;
}
}
IA_ERRORCODE ixheaace_mps_212_initialise(VOID *pstr_handle_mps, const WORD32 audio_object_type,
const UWORD32 sampling_rate, WORD32 *ptr_bitrate,
const UWORD32 sbr_ratio, const UWORD32 frame_length,
const UWORD32 input_buffer_size_per_channel,
const UWORD32 core_coder_delay, WORD8 *ptr_scratch) {
IA_ERRORCODE error = IA_NO_ERROR;
const UWORD32 fs_low = 27713;
const UWORD32 fs_high = 55426;
const UWORD32 no_inter_frame_coding = 0;
UWORD32 num_time_slots = 0, num_qmf_bands_ld = 0;
ixheaace_mps_pstr_struct pstr_mps_enc = (ixheaace_mps_pstr_struct)pstr_handle_mps;
switch (sbr_ratio) {
case 1:
if (!(sampling_rate < fs_low)) {
return IA_EXHEAACE_INIT_FATAL_MPS_INIT_FAILED;
}
break;
case 2:
case 4:
if (!((sampling_rate >= fs_low) && (sampling_rate < fs_high))) {
return IA_EXHEAACE_INIT_FATAL_MPS_INIT_FAILED;
}
break;
case 0:
default:;
}
num_qmf_bands_ld = (sampling_rate < fs_low) ? 5 : ((sampling_rate > fs_high) ? 7 : 6);
num_time_slots = frame_length >> num_qmf_bands_ld;
*ptr_bitrate = ixheaace_mps_212_get_closest_bit_rate(audio_object_type, sampling_rate,
sbr_ratio, *ptr_bitrate);
pstr_mps_enc->ptr_sac_encoder->user.b_ld_mode = ((no_inter_frame_coding == 1) ? 1 : 2);
pstr_mps_enc->ptr_sac_encoder->user.sample_rate = sampling_rate;
pstr_mps_enc->ptr_sac_encoder->user.frame_time_slots = num_time_slots;
if (audio_object_type == AOT_AAC_ELD) {
pstr_mps_enc->ptr_sac_encoder->user.num_param_bands = IXHEAACE_MPS_SAC_BANDS_ld;
pstr_mps_enc->ptr_sac_encoder->user.independency_factor = 20;
} else {
pstr_mps_enc->ptr_sac_encoder->user.num_param_bands = IXHEAACE_MPS_SAC_BANDS_usac;
pstr_mps_enc->ptr_sac_encoder->user.independency_factor = 25;
}
pstr_mps_enc->ptr_sac_encoder->user.b_use_coarse_quant = 0;
pstr_mps_enc->ptr_sac_encoder->user.quant_mode = IXHEAACE_MPS_QUANTMODE_FINE;
pstr_mps_enc->ptr_sac_encoder->user.time_alignment = 0;
pstr_mps_enc->audio_object_type = audio_object_type;
error =
ixheaace_mps_212_init(pstr_mps_enc->ptr_sac_encoder, core_coder_delay, audio_object_type);
if (error) {
return IA_EXHEAACE_INIT_FATAL_MPS_INIT_FAILED;
}
pstr_mps_enc->in_buf_desc.pp_base = (VOID **)&pstr_mps_enc->p_in_buffer;
pstr_mps_enc->in_buf_desc.p_buf_size = pstr_mps_enc->p_in_buffer_size;
pstr_mps_enc->in_buf_desc.p_ele_size = pstr_mps_enc->p_in_buffer_el_size;
pstr_mps_enc->in_buf_desc.p_buf_type = pstr_mps_enc->p_in_buffer_type;
pstr_mps_enc->in_buf_desc.num_bufs = 1;
pstr_mps_enc->out_buf_desc.pp_base = (VOID **)&pstr_mps_enc->p_out_buffer;
pstr_mps_enc->out_buf_desc.p_buf_size = pstr_mps_enc->p_out_buffer_size;
pstr_mps_enc->out_buf_desc.p_ele_size = pstr_mps_enc->p_out_buffer_el_size;
pstr_mps_enc->out_buf_desc.p_buf_type = pstr_mps_enc->p_out_buffer_type;
pstr_mps_enc->out_buf_desc.num_bufs = 2;
pstr_mps_enc->p_in_buffer[0] = NULL;
pstr_mps_enc->p_in_buffer_size[0] = 0;
pstr_mps_enc->p_in_buffer_el_size[0] = sizeof(FLOAT32);
pstr_mps_enc->p_in_buffer_type[0] = IXHEAACE_MPS_INPUT_BUFFER_IDX;
pstr_mps_enc->p_out_buffer[0] = NULL;
pstr_mps_enc->p_out_buffer_size[0] = 0;
pstr_mps_enc->p_out_buffer_el_size[0] = sizeof(FLOAT32);
pstr_mps_enc->p_out_buffer_type[0] = IXHEAACE_MPS_OUTUT_BUFFER_IDX;
pstr_mps_enc->p_out_buffer[1] = NULL;
pstr_mps_enc->p_out_buffer_size[1] = 0;
pstr_mps_enc->p_out_buffer_el_size[1] = sizeof(UWORD8);
pstr_mps_enc->p_out_buffer_type[1] = IXHEAACE_MPS_BITSTREAM_BUFFER_IDX;
pstr_mps_enc->in_args.is_input_inter_leaved = 0;
pstr_mps_enc->in_args.input_buffer_size_per_channel = input_buffer_size_per_channel;
pstr_mps_enc->ptr_scratch = ptr_scratch;
return error;
}
IA_ERRORCODE ixheaace_mps_212_process(VOID *pstr_handle_mps, FLOAT32 *const ptr_audio_samples,
const WORD32 num_audio_samples,
ixheaace_mps_enc_ext_payload *pstr_mps_ext_payload) {
IA_ERRORCODE error = IA_NO_ERROR;
ixheaace_mps_pstr_struct pstr_mps_enc = (ixheaace_mps_pstr_struct)pstr_handle_mps;
WORD32 aot = pstr_mps_enc->audio_object_type;
WORD32 sac_header_flag = 0;
WORD32 sac_out_buffer_offset = 0;
if (aot == AOT_AAC_ELD) {
pstr_mps_enc->sac_out_buffer[0] = (sac_header_flag == 0) ? 0x3 : 0x7;
sac_out_buffer_offset += 1;
}
pstr_mps_enc->p_in_buffer[0] = (VOID *)ptr_audio_samples;
pstr_mps_enc->in_args.num_input_samples = num_audio_samples;
pstr_mps_enc->p_out_buffer[0] = (VOID *)ptr_audio_samples;
pstr_mps_enc->p_out_buffer_size[0] = sizeof(FLOAT32) * ((WORD32)num_audio_samples) / 2;
pstr_mps_enc->p_out_buffer[1] = (VOID *)&pstr_mps_enc->sac_out_buffer[sac_out_buffer_offset];
pstr_mps_enc->p_out_buffer_size[1] =
sizeof(pstr_mps_enc->sac_out_buffer) - sac_out_buffer_offset;
error = ixheaace_mps_212_encode(pstr_mps_enc->ptr_sac_encoder, &pstr_mps_enc->in_buf_desc,
&pstr_mps_enc->out_buf_desc, &pstr_mps_enc->in_args,
&pstr_mps_enc->out_args, aot, pstr_mps_enc->ptr_scratch);
if (error) {
return error;
}
pstr_mps_ext_payload->p_data = (UWORD8 *)pstr_mps_enc->sac_out_buffer;
pstr_mps_ext_payload->data_size = pstr_mps_enc->out_args.num_output_bits;
if (aot == AOT_AAC_ELD) {
pstr_mps_ext_payload->data_size += 8 * (sac_out_buffer_offset - 1);
}
pstr_mps_ext_payload->data_type = IXHEAACE_MPS_EXT_LDSAC_DATA;
pstr_mps_ext_payload->associated_ch_element = -1;
return error;
}
WORD32 ixheaace_mps_212_get_spatial_specific_config(VOID *pstr_handle_mps, WORD8 *ptr_out_buffer,
WORD32 buf_size, WORD32 aot) {
ixheaace_bit_buf bit_buf;
ixheaace_bit_buf_handle pstr_bit_buf =
ia_enhaacplus_enc_create_bitbuffer(&bit_buf, (UWORD8 *)ptr_out_buffer, buf_size);
ixheaace_mps_212_write_spatial_specific_config_data(pstr_handle_mps, pstr_bit_buf);
if (aot == AOT_AAC_ELD) {
ixheaace_byte_align_buffer(pstr_bit_buf);
}
return ia_enhaacplus_enc_get_bits_available(pstr_bit_buf);
}
WORD32 ixheaace_mps_515_scratch_size(VOID) {
WORD32 size = 0;
size += ((MAX_INPUT_CHANNELS * MAX_BUFFER_SIZE) * sizeof(FLOAT32));
size += ((MAX_OUTPUT_CHANNELS * MAX_BUFFER_SIZE) * sizeof(FLOAT32));
size +=
(((MAX_INPUT_CHANNELS * MAX_BUFFER_SIZE) + (2 * MAX_BUFFER_SIZE) + (2 * MAX_BUFFER_SIZE)) *
sizeof(FLOAT32));
size += (((6 * MAX_TIME_SLOTS * NUM_QMF_BANDS) + (6 * MAX_TIME_SLOTS * NUM_QMF_BANDS) +
(6 * MAX_TIME_SLOTS * NUM_QMF_BANDS) + (6 * MAX_TIME_SLOTS * NUM_QMF_BANDS) +
(6 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS) + (6 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS)) *
sizeof(FLOAT32));
size += (INPUT_LEN_DOWNSAMPLE * IXHEAACE_MAX_CH_IN_BS_ELE * UPSAMPLE_FAC * sizeof(FLOAT32));
size += (INPUT_LEN_DOWNSAMPLE * IXHEAACE_MAX_CH_IN_BS_ELE * UPSAMPLE_FAC * sizeof(FLOAT32));
size = IXHEAAC_GET_SIZE_ALIGNED(size, BYTE_ALIGN_8);
return size;
}
IA_ERRORCODE ixheaace_mps_515_open(VOID **pstr_handle_mps, WORD32 sample_freq, WORD32 tree_config,
ixheaace_bit_buf_handle pstr_bitstream,
WORD32 *ptr_bits_written,
ixheaace_mps_515_memory_struct *pstr_mps_memory,
WORD32 flag_480) {
WORD32 i;
IA_ERRORCODE error = IA_NO_ERROR;
ixheaace_mps_sac_specific_config *pstr_mps_specific_config;
ixheaace_mps_sac_pstr_enc pstr_mps_enc = &pstr_mps_memory->spatial_enc_instance;
ixheaace_mps_sac_pstr_qmf_ana_filter_bank pstr_qmf_ana_bank = &pstr_mps_enc->qmf_fltbank;
ixheaace_mps_sac_pstr_qmf_synth_filter_bank pstr_qmf_synth_bank =
&pstr_mps_enc->qmf_synth_fltbank;
memset(pstr_mps_enc, 0, sizeof(ixheaace_mps_sac_enc));
pstr_mps_enc->tree_config = tree_config;
switch (tree_config) {
case 5151:
case 5152:
pstr_mps_enc->output_channels = 1;
break;
case 525:
pstr_mps_enc->output_channels = 2;
}
if (flag_480) {
pstr_mps_enc->time_slots = 15;
} else {
pstr_mps_enc->time_slots = 16;
}
pstr_mps_enc->frame_size = NUM_QMF_BANDS * pstr_mps_enc->time_slots;
pstr_qmf_ana_bank->p_filter = ia_mps_enc_qmf_64_640;
pstr_qmf_synth_bank->p_filter = ia_mps_enc_qmf_64_640;
pstr_qmf_synth_bank->alt_sin_twiddle = sbr_alt_sin_twiddle;
pstr_qmf_synth_bank->cos_twiddle = sbr_cos_twiddle;
pstr_qmf_synth_bank->sin_twiddle = sbr_sin_twiddle;
for (i = 0; i < 6; i++) {
memset(&pstr_mps_enc->filterbank[i], 0, sizeof(ixheaace_mps_sac_sbr_encoder_ana_filter_bank));
memset(&pstr_mps_enc->hyb_state[i], 0, sizeof(ixheaace_mps_hyb_filter_state));
}
pstr_mps_enc->bitstream_formatter = &pstr_mps_memory->bsf_memory_instance;
pstr_mps_specific_config = &pstr_mps_enc->bitstream_formatter->spatial_specific_config;
memset(pstr_mps_specific_config, 0, sizeof(ixheaace_mps_sac_specific_config));
pstr_mps_enc->bitstream_formatter->current_frame.bs_independency_flag_count = 0;
pstr_mps_specific_config->bs_sampling_frequency = sample_freq;
switch (tree_config) {
case 5151:
pstr_mps_specific_config->bs_tree_config = IXHEAACE_MPS_TREE_5151;
pstr_mps_specific_config->ott_config[4].bs_ott_bands = 2;
break;
case 5152:
pstr_mps_specific_config->bs_tree_config = IXHEAACE_MPS_TREE_5152;
pstr_mps_specific_config->ott_config[2].bs_ott_bands = 2;
break;
case 525:
pstr_mps_specific_config->bs_tree_config = IXHEAACE_MPS_TREE_525;
pstr_mps_specific_config->ott_config[0].bs_ott_bands = 2;
pstr_mps_specific_config->ttt_config->bs_ttt_bands_low = PARAMETER_BANDS;
pstr_mps_specific_config->ttt_config->bs_ttt_mode_low = 5;
}
pstr_mps_specific_config->bs_frame_length = pstr_mps_enc->time_slots - 1;
pstr_mps_specific_config->bs_freq_res = 2;
pstr_mps_specific_config->bs_fixed_gain_sur = 2;
pstr_mps_specific_config->bs_fixed_gain_lfe = 1;
pstr_mps_specific_config->bs_fixed_gain_dmx = 0;
error = ixheaace_mps_515_write_spatial_specific_config(pstr_bitstream,
pstr_mps_enc->bitstream_formatter);
*ptr_bits_written = ia_enhaacplus_enc_get_bits_available(pstr_bitstream);
*pstr_handle_mps = pstr_mps_enc;
return error;
}
IA_ERRORCODE ixheaace_mps_515_apply(ixheaace_mps_sac_enc *pstr_mps_enc, FLOAT32 *ptr_audio_input,
FLOAT32 *ptr_audio_output,
ixheaace_bit_buf_handle pstr_bitstream, VOID *ptr_scratch) {
IA_ERRORCODE error = IA_NO_ERROR;
FLOAT32 *pstr_scratch = (FLOAT32 *)ptr_scratch;
FLOAT32 *in = (FLOAT32 *)pstr_scratch;
memset(in, 0, sizeof(*in) * MAX_INPUT_CHANNELS * MAX_BUFFER_SIZE);
pstr_scratch += MAX_INPUT_CHANNELS * MAX_BUFFER_SIZE;
FLOAT32 *out = (FLOAT32 *)pstr_scratch;
memset(out, 0, sizeof(*out) * 2 * MAX_BUFFER_SIZE);
pstr_scratch += 2 * MAX_BUFFER_SIZE;
FLOAT32 *out1 = (FLOAT32 *)pstr_scratch;
memset(out1, 0, sizeof(*out1) * 2 * MAX_BUFFER_SIZE);
pstr_scratch += 2 * MAX_BUFFER_SIZE;
FLOAT32 *m_qmf_real = (FLOAT32 *)pstr_scratch;
memset(m_qmf_real, 0, sizeof(*m_qmf_real) * 6 * MAX_TIME_SLOTS * NUM_QMF_BANDS);
pstr_scratch += 6 * MAX_TIME_SLOTS * NUM_QMF_BANDS;
FLOAT32 *m_qmf_imag = (FLOAT32 *)pstr_scratch;
memset(m_qmf_imag, 0, sizeof(*m_qmf_imag) * 6 * MAX_TIME_SLOTS * NUM_QMF_BANDS);
pstr_scratch += 6 * MAX_TIME_SLOTS * NUM_QMF_BANDS;
FLOAT32 *m_hybrid_real = (FLOAT32 *)pstr_scratch;
memset(m_hybrid_real, 0, sizeof(*m_hybrid_real) * 6 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS);
pstr_scratch += 6 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS;
FLOAT32 *m_hybrid_imag = (FLOAT32 *)pstr_scratch;
memset(m_hybrid_imag, 0, sizeof(*m_hybrid_imag) * 6 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS);
pstr_scratch += 6 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS;
FLOAT32 *m_qmf_real_out = (FLOAT32 *)pstr_scratch;
memset(m_qmf_real_out, 0, sizeof(*m_qmf_real_out) * 6 * MAX_TIME_SLOTS * NUM_QMF_BANDS);
pstr_scratch += 6 * MAX_TIME_SLOTS * NUM_QMF_BANDS;
FLOAT32 *m_qmf_imag_out = (FLOAT32 *)pstr_scratch;
memset(m_qmf_imag_out, 0, sizeof(*m_qmf_imag_out) * 6 * MAX_TIME_SLOTS * NUM_QMF_BANDS);
ixheaace_mps_sac_spatial_frame *pstr_frame_data;
ixheaace_mps_sac_pstr_qmf_ana_filter_bank pstr_qmf_ana_bank = &pstr_mps_enc->qmf_fltbank;
ixheaace_mps_sac_pstr_qmf_synth_filter_bank pstr_qmf_synth_bank =
&pstr_mps_enc->qmf_synth_fltbank;
WORD32 i, j, k, l;
FLOAT32 p_pre_scale[6] = {1.f, 1.f, 1.f, 0.3162f, 0.7071f, 0.7071f};
for (i = 0; i < DELAY_COMPENSATION; i++) {
for (j = 0; j < 6; j++) {
pstr_mps_enc->in1[j][i] = pstr_mps_enc->in1[j][i + pstr_mps_enc->frame_size];
}
}
for (i = 0; i < pstr_mps_enc->frame_size; i++) {
for (j = 0; j < 6; j++) {
pstr_mps_enc->in1[j][i + DELAY_COMPENSATION] = ptr_audio_input[i * 6 + j] * p_pre_scale[j];
}
}
for (i = 0; i < pstr_mps_enc->frame_size; i++) {
for (j = 0; j < 6; j++) {
in[j * MAX_BUFFER_SIZE + i] = ptr_audio_input[i * 6 + j] * p_pre_scale[j];
}
}
for (i = 0; i < pstr_mps_enc->frame_size; i++) {
if (pstr_mps_enc->output_channels == 1)
out1[i] = in[i] + in[MAX_BUFFER_SIZE + i] + in[2 * MAX_BUFFER_SIZE + i] +
in[3 * MAX_BUFFER_SIZE + i] + in[4 * MAX_BUFFER_SIZE + i] +
in[5 * MAX_BUFFER_SIZE + i];
else {
out1[i] = in[i] + 0.7071f * (in[2 * MAX_BUFFER_SIZE + i] + in[3 * MAX_BUFFER_SIZE + i]) +
in[4 * MAX_BUFFER_SIZE + i];
out1[MAX_BUFFER_SIZE + i] =
in[MAX_BUFFER_SIZE + i] +
0.7071f * (in[2 * MAX_BUFFER_SIZE + i] + in[3 * MAX_BUFFER_SIZE + i]) +
in[5 * MAX_BUFFER_SIZE + i];
}
}
for (i = 0; i < pstr_mps_enc->frame_size; i++) {
for (j = 0; j < 6; j++) {
in[j * MAX_BUFFER_SIZE + i] = pstr_mps_enc->in1[j][i];
}
}
for (l = 0; l < pstr_mps_enc->time_slots; l++) {
for (j = 0; j < 6; j++) {
ixheaace_mps_515_calculate_ana_filterbank(
&pstr_mps_enc->filterbank[j], in + (j * MAX_BUFFER_SIZE) + (l * 64),
m_qmf_real + (j * MAX_TIME_SLOTS * NUM_QMF_BANDS) + (l * NUM_QMF_BANDS),
m_qmf_imag + (j * MAX_TIME_SLOTS * NUM_QMF_BANDS) + (l * NUM_QMF_BANDS),
pstr_qmf_ana_bank);
}
}
for (k = 0; k < 6; k++) {
ixheaace_mps_515_apply_ana_hyb_filterbank(
&pstr_mps_enc->hyb_state[k], m_qmf_real + (k * MAX_TIME_SLOTS * NUM_QMF_BANDS),
m_qmf_imag + (k * MAX_TIME_SLOTS * NUM_QMF_BANDS), pstr_mps_enc->time_slots,
m_hybrid_real + (k * MAX_TIME_SLOTS * MAX_HYBRID_BANDS),
m_hybrid_imag + k * MAX_TIME_SLOTS * MAX_HYBRID_BANDS);
}
pstr_frame_data = &pstr_mps_enc->bitstream_formatter->current_frame;
switch (pstr_mps_enc->tree_config) {
case 5151:
ixheaace_mps_515_ott_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag,
m_hybrid_real + MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_frame_data->ott_data.cld[3][0],
pstr_frame_data->ott_data.icc[3][0]);
ixheaace_mps_515_ott_box(
pstr_mps_enc->time_slots, m_hybrid_real + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_real + 5 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 5 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_frame_data->ott_data.cld[2][0], pstr_frame_data->ott_data.icc[2][0]);
ixheaace_mps_515_ott_box(
pstr_mps_enc->time_slots, m_hybrid_real + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_real + 3 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 3 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_frame_data->ott_data.cld[4][0], pstr_frame_data->ott_data.icc[4][0]);
ixheaace_mps_515_ott_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag,
m_hybrid_real + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_frame_data->ott_data.cld[1][0],
pstr_frame_data->ott_data.icc[1][0]);
ixheaace_mps_515_ott_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag,
m_hybrid_real + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_frame_data->ott_data.cld[0][0],
pstr_frame_data->ott_data.icc[0][0]);
break;
case 5152:
ixheaace_mps_515_ott_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag,
m_hybrid_real + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_frame_data->ott_data.cld[3][0],
pstr_frame_data->ott_data.icc[3][0]);
ixheaace_mps_515_ott_box(
pstr_mps_enc->time_slots, m_hybrid_real + MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_real + 5 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 5 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_frame_data->ott_data.cld[4][0], pstr_frame_data->ott_data.icc[4][0]);
ixheaace_mps_515_ott_box(
pstr_mps_enc->time_slots, m_hybrid_real + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_real + 3 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 3 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_frame_data->ott_data.cld[2][0], pstr_frame_data->ott_data.icc[2][0]);
ixheaace_mps_515_ott_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag,
m_hybrid_real + MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_frame_data->ott_data.cld[1][0],
pstr_frame_data->ott_data.icc[1][0]);
ixheaace_mps_515_ott_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag,
m_hybrid_real + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_frame_data->ott_data.cld[0][0],
pstr_frame_data->ott_data.icc[0][0]);
break;
case 525:
ixheaace_mps_515_ott_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag,
m_hybrid_real + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 4 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_frame_data->ott_data.cld[1][0],
pstr_frame_data->ott_data.icc[1][0]);
ixheaace_mps_515_ott_box(
pstr_mps_enc->time_slots, m_hybrid_real + MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_real + 5 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 5 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_frame_data->ott_data.cld[2][0], pstr_frame_data->ott_data.icc[2][0]);
ixheaace_mps_515_ott_box(
pstr_mps_enc->time_slots, m_hybrid_real + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_real + 3 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 3 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_frame_data->ott_data.cld[0][0], pstr_frame_data->ott_data.icc[0][0]);
ixheaace_mps_515_ttt_box(pstr_mps_enc->time_slots, m_hybrid_real, m_hybrid_imag,
m_hybrid_real + MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_real + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + 2 * MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_frame_data->ttt_data.cpc_cld1[0][0],
pstr_frame_data->ttt_data.cpc_cld2[0][0]);
}
pstr_frame_data->framing_info.bs_framing_type = 1;
pstr_frame_data->framing_info.bs_num_param_sets = 1;
pstr_frame_data->framing_info.bs_param_slots[0] = 31;
if (pstr_frame_data->bs_independency_flag_count == 0) {
pstr_frame_data->bs_independency_flag = 1;
}
pstr_frame_data->bs_independency_flag_count =
(pstr_frame_data->bs_independency_flag_count + 1) % 10;
error = ixheaace_mps_515_write_spatial_frame(pstr_bitstream, pstr_mps_enc->bitstream_formatter);
if (error) {
return error;
}
if (pstr_mps_enc->output_channels == 1) {
ixheaace_mps_515_apply_syn_hyb_filterbank(
m_hybrid_real, m_hybrid_imag, pstr_mps_enc->time_slots, m_qmf_real_out, m_qmf_imag_out);
ixheaace_mps_515_calculate_sbr_syn_filterbank(m_qmf_real_out, m_qmf_imag_out, out, 0,
pstr_qmf_synth_bank, pstr_mps_enc->time_slots,
pstr_mps_enc->sbr_qmf_states_synthesis);
for (j = 0; j < pstr_mps_enc->frame_size; j++) {
ptr_audio_output[j] = out1[j];
}
} else {
ixheaace_mps_515_apply_syn_hyb_filterbank(
m_hybrid_real, m_hybrid_imag, pstr_mps_enc->time_slots, m_qmf_real_out, m_qmf_imag_out);
ixheaace_mps_515_apply_syn_hyb_filterbank(m_hybrid_real + MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_hybrid_imag + MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
pstr_mps_enc->time_slots,
m_qmf_real_out + MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_qmf_imag_out + MAX_TIME_SLOTS * MAX_HYBRID_BANDS);
ixheaace_mps_515_calculate_sbr_syn_filterbank(m_qmf_real_out, m_qmf_imag_out, out, 0,
pstr_qmf_synth_bank, pstr_mps_enc->time_slots,
pstr_mps_enc->sbr_qmf_states_synthesis);
ixheaace_mps_515_calculate_sbr_syn_filterbank(
m_qmf_real_out + MAX_TIME_SLOTS * MAX_HYBRID_BANDS,
m_qmf_imag_out + MAX_TIME_SLOTS * MAX_HYBRID_BANDS, out + MAX_BUFFER_SIZE, 1,
pstr_qmf_synth_bank, pstr_mps_enc->time_slots, pstr_mps_enc->sbr_qmf_states_synthesis);
for (j = 0; j < pstr_mps_enc->frame_size; j++) {
ptr_audio_output[2 * j] = out1[j];
ptr_audio_output[2 * j + 1] = out1[MAX_BUFFER_SIZE + j];
}
}
return IA_NO_ERROR;
}
VOID ixheaace_mps_515_close(ixheaace_mps_sac_enc *pstr_mps_enc) {
if (pstr_mps_enc != NULL) {
pstr_mps_enc->bitstream_formatter = NULL;
}
}
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