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ixheaacd_mps_temp_process.c
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/******************************************************************************
* *
* 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 <math.h>
#include "ixheaac_type_def.h"
#include "ixheaac_constants.h"
#include "ixheaacd_bitbuffer.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_config.h"
#include "ixheaacd_hybrid.h"
#include "ixheaacd_ps_dec.h"
#include "ixheaacd_qmf_dec.h"
#include "ixheaacd_mps_polyphase.h"
#include "ixheaacd_mps_struct_def.h"
#include "ixheaacd_mps_res_rom.h"
#include "ixheaacd_mps_aac_struct.h"
#include "ixheaacd_mps_dec.h"
#include "ixheaacd_mps_process.h"
#include "ixheaacd_lpp_tran.h"
#include "ixheaacd_env_extr.h"
#include "ixheaacd_env_calc.h"
#include "ixheaac_sbr_const.h"
#include "ixheaacd_pvc_dec.h"
#include "ixheaacd_sbr_dec.h"
#include "ixheaacd_audioobjtypes.h"
#include "ixheaac_basic_ops32.h"
#include "ixheaac_basic_ops40.h"
#include "ixheaacd_mps_bitdec.h"
#include "ixheaacd_mps_macro_def.h"
#include "ixheaacd_mps_get_index.h"
#include "ixheaacd_mps_basic_op.h"
#include "ixheaacd_mps_tp_process.h"
#include "ixheaacd_error_codes.h"
#define HP_SIZE (9)
#define STP_LPF_COEFF1 (0.950f)
#define STP_LPF_COEFF2 (0.450f)
#define STP_UPDATE_ENERGY_RATE (32)
#define STP_SCALE_LIMIT (2.82f)
#define STP_DAMP (0.1f)
static const FLOAT32 ixheaacd_bp[BP_SIZE] = {
0.0000f, 0.0005f, 0.0092f, 0.0587f, 0.2580f, 0.7392f, 0.9791f,
0.9993f, 1.0000f, 1.0000f, 1.0000f, 1.0000f, 0.9999f, 0.9984f,
0.9908f, 0.9639f, 0.8952f, 0.7711f, 0.6127f, 0.4609f, 0.3391f,
0.2493f, 0.1848f, 0.1387f, 0.1053f};
static const FLOAT32 ixheaacd_gf[BP_SIZE] = {
0.f, 0.f, 0.f, 0.f, 0.f,
0.f, 1e-008f, 8.1e-007f, 3.61e-006f, 8.41e-006f,
1.6e-005f, 2.704e-005f, 3.969e-005f, 5.625e-005f, 7.396e-005f,
9.801e-005f, 0.00012321f, 0.00015625f, 0.00019881f, 0.00024964f,
0.00032041f, 0.00041209f, 0.00053824f, 0.00070756f, 0.00094249f};
extern const WORD32 ixheaacd_mps_gain_set_indx[29];
static VOID ixheaacd_mps_temp_process_scale_calc(ia_mps_dec_state_struct* self,
WORD32 ts, FLOAT32* scale) {
FLOAT32 dir_energy;
FLOAT32 diff_energy[2];
FLOAT32 temp;
WORD32 ch, n;
WORD32 left_ch = 0, right_ch = 1;
if (self->subband_var.init_flag == 0) {
for (ch = 0; ch < 2; ch++) {
self->subband_var.tp_scale_last[ch] = 1.0f;
self->subband_var.nrg_diff_prev[ch] = 32768 * 32768;
}
self->subband_var.nrg_dir_prev = 32768 * 32768;
self->subband_var.init_flag = 1;
}
if (self->subband_var.update_old_ener == STP_UPDATE_ENERGY_RATE) {
self->subband_var.update_old_ener = 1;
self->subband_var.nrg_dir_prev = self->subband_var.nrg_dir;
for (ch = 0; ch < self->out_ch_count; ch++)
self->subband_var.nrg_diff_prev[ch] = self->subband_var.nrg_diff[ch];
} else
self->subband_var.update_old_ener++;
dir_energy = 0;
for (n = 6; n < BP_SIZE; n++) {
FLOAT32 dir_left_re = self->hyb_dir_out[left_ch][ts][n + 7].re;
FLOAT32 dir_right_re = self->hyb_dir_out[right_ch][ts][n + 7].re;
FLOAT32 dir_left_im = self->hyb_dir_out[left_ch][ts][n + 7].im;
FLOAT32 dir_right_im = self->hyb_dir_out[right_ch][ts][n + 7].im;
temp = ((dir_left_re + dir_right_re) * (dir_left_re + dir_right_re)) +
((dir_left_im + dir_right_im) * (dir_left_im + dir_right_im));
dir_energy += temp * ixheaacd_bp[n] * ixheaacd_bp[n] * ixheaacd_gf[n] *
ixheaacd_gf[n];
}
self->subband_var.nrg_dir =
(FLOAT32)(STP_LPF_COEFF1 * self->subband_var.nrg_dir +
(1.0 - STP_LPF_COEFF1) * dir_energy);
dir_energy /= (self->subband_var.nrg_dir_prev + ABS_THR);
for (ch = 0; ch < self->out_ch_count; ch++) {
diff_energy[ch] = 0;
for (n = 6; n < BP_SIZE; n++) {
FLOAT32 diff_re = self->hyb_diff_out[ch][ts][n + 7].re;
FLOAT32 diff_im = self->hyb_diff_out[ch][ts][n + 7].im;
temp = (diff_re * diff_re) + (diff_im * diff_im);
diff_energy[ch] += temp * ixheaacd_bp[n] * ixheaacd_bp[n] *
ixheaacd_gf[n] * ixheaacd_gf[n];
}
self->subband_var.nrg_diff[ch] =
(FLOAT32)(STP_LPF_COEFF1 * self->subband_var.nrg_diff[ch] +
(1.0 - STP_LPF_COEFF1) * diff_energy[ch]);
diff_energy[ch] /= (self->subband_var.nrg_diff_prev[ch] + ABS_THR);
}
scale[left_ch] = (FLOAT32)sqrt((dir_energy) / (diff_energy[left_ch] + 1e-9));
scale[right_ch] =
(FLOAT32)sqrt((dir_energy) / (diff_energy[right_ch] + 1e-9));
for (ch = 0; ch < self->out_ch_count; ch++) {
scale[ch] = STP_DAMP + (1 - STP_DAMP) * scale[ch];
}
for (ch = 0; ch < self->out_ch_count; ch++) {
scale[ch] =
min(max(scale[ch], (FLOAT32)(1.0 / STP_SCALE_LIMIT)), STP_SCALE_LIMIT);
}
for (ch = 0; ch < self->out_ch_count; ch++) {
scale[ch] =
(FLOAT32)(STP_LPF_COEFF2 * scale[ch] +
(1.0 - STP_LPF_COEFF2) * self->subband_var.tp_scale_last[ch]);
self->subband_var.tp_scale_last[ch] = scale[ch];
}
}
static VOID ixheaacd_mps_subbandtp(ia_mps_dec_state_struct* self, WORD32 ts) {
FLOAT32 scale[2];
WORD32 ch, n;
WORD32 no_scaling;
FLOAT32 temp;
const WORD32 ixheaacd_hybrid_to_qmf_map[] = {0, 0, 0, 0, 0, 0, 1, 1, 2, 2};
const WORD32 ixheaacd_hybrid_to_qmf_map_ldmps[] = {0, 1, 2};
const WORD32* ptr_ixheaacd_hybrid_to_qmf_map;
WORD32 loop_counter = 0;
if (self->ldmps_config.ldmps_present_flag) {
ptr_ixheaacd_hybrid_to_qmf_map = ixheaacd_hybrid_to_qmf_map_ldmps;
loop_counter = 3;
} else {
ptr_ixheaacd_hybrid_to_qmf_map = ixheaacd_hybrid_to_qmf_map;
loop_counter = 10;
}
ixheaacd_mps_temp_process_scale_calc(self, ts, scale);
for (ch = 0; ch < self->out_ch_count; ch++) {
no_scaling = 1;
if ((self->config->bs_temp_shape_config == 1) ||
(self->config->bs_temp_shape_config == 2))
no_scaling = !self->temp_shape_enable_ch_stp[ch];
if (no_scaling == 1) {
for (n = 0; n < self->hyb_band_count_max; n++) {
self->hyb_dir_out[ch][ts][n].re += self->hyb_diff_out[ch][ts][n].re;
self->hyb_dir_out[ch][ts][n].im += self->hyb_diff_out[ch][ts][n].im;
}
} else {
if (self->ldmps_config.ldmps_present_flag) {
for (n = 0; n < 3; n++) {
temp = (FLOAT32)(scale[ch] *
ixheaacd_bp[ptr_ixheaacd_hybrid_to_qmf_map[n]]);
self->hyb_dir_out[ch][ts][n].re +=
(self->hyb_diff_out[ch][ts][n].re * temp);
self->hyb_dir_out[ch][ts][n].im +=
(self->hyb_diff_out[ch][ts][n].im * temp);
}
} else {
for (n = 0; n < loop_counter; n++) {
temp = (FLOAT32)(scale[ch] *
ixheaacd_bp[ptr_ixheaacd_hybrid_to_qmf_map[n]]);
self->hyb_dir_out[ch][ts][n].re +=
(self->hyb_diff_out[ch][ts][n].re * temp);
self->hyb_dir_out[ch][ts][n].im +=
(self->hyb_diff_out[ch][ts][n].im * temp);
}
}
for (n = 7; n < HP_SIZE - 3 + 10; n++) {
temp = (FLOAT32)(scale[ch] * ixheaacd_bp[n + 3 - 10]);
self->hyb_dir_out[ch][ts][n].re +=
(self->hyb_diff_out[ch][ts][n].re * temp);
self->hyb_dir_out[ch][ts][n].im +=
(self->hyb_diff_out[ch][ts][n].im * temp);
}
for (; n < self->hyb_band_count_max; n++) {
temp = (FLOAT32)(scale[ch]);
self->hyb_dir_out[ch][ts][n].re +=
(self->hyb_diff_out[ch][ts][n].re * temp);
self->hyb_dir_out[ch][ts][n].im +=
(self->hyb_diff_out[ch][ts][n].im * temp);
}
}
}
}
WORD32 ixheaacd_mps_temp_process(ia_mps_dec_state_struct* self) {
WORD32 ch, ts, hyb;
WORD32 err = 0;
ia_sbr_frame_info_data_struct* ptr_frame_data =
(ia_sbr_frame_info_data_struct*)self->p_sbr_frame[0];
if (self->res_bands != 28) {
if (self->config->bs_temp_shape_config == 1) {
WORD32 dif_s = ((self->res_bands == 0)
? 0
: ixheaacd_mps_gain_set_indx[self->res_bands]);
for (ch = 0; ch < self->out_ch_count; ch++) {
for (ts = 0; ts < self->time_slots; ts++) {
for (hyb = dif_s; hyb < HYBRID_BAND_BORDER; hyb++) {
self->hyb_dir_out[ch][ts][hyb].re +=
self->hyb_diff_out[ch][ts][hyb].re;
self->hyb_dir_out[ch][ts][hyb].im +=
self->hyb_diff_out[ch][ts][hyb].im;
self->hyb_diff_out[ch][ts][hyb].re = 0;
self->hyb_diff_out[ch][ts][hyb].im = 0;
}
}
}
for (ts = 0; ts < self->time_slots; ts++)
ixheaacd_mps_subbandtp(self, ts);
} else {
WORD32 dif_s = ((self->res_bands == 0)
? 0
: ixheaacd_mps_gain_set_indx[self->res_bands]);
for (ch = 0; ch < self->out_ch_count; ch++) {
for (ts = 0; ts < self->time_slots; ts++) {
for (hyb = dif_s; hyb < self->hyb_band_count_max; hyb++) {
self->hyb_dir_out[ch][ts][hyb].re +=
self->hyb_diff_out[ch][ts][hyb].re;
self->hyb_dir_out[ch][ts][hyb].im +=
self->hyb_diff_out[ch][ts][hyb].im;
}
}
}
}
}
ixheaacd_mps_qmf_hyb_synthesis(self);
if (self->ldmps_config.ldmps_present_flag != 1) {
for (ch = 0; ch < self->out_ch_count; ch++) {
err =
ixheaacd_sbr_dec_from_mps(&self->qmf_out_dir[ch][0][0].re, self->p_sbr_dec[ch],
self->p_sbr_frame[ch], self->p_sbr_header[ch], self->ec_flag);
if (err) return err;
}
}
if (self->object_type == AOT_ER_AAC_ELD || self->object_type == AOT_ER_AAC_LD)
self->synth_count = self->hyb_band_count[0];
else
{
if (ptr_frame_data->mps_sbr_flag) {
self->synth_count =
ptr_frame_data->pstr_sbr_header->pstr_freq_band_data->sub_band_end;
}
else {
self->synth_count = self->band_count[0];
}
}
ixheaacd_mps_synt_calc(self);
return err;
}
static VOID ixheaacd_subband_tp(ia_heaac_mps_state_struct *pstr_mps_state, WORD32 ts) {
ia_mps_dec_tp_process_tables_struct *tp_process_table_ptr =
pstr_mps_state->ia_mps_dec_mps_table.tp_process_table_ptr;
const WORD32 *sqrt_tab =
pstr_mps_state->ia_mps_dec_mps_table.common_table_ptr->sqrt_tab;
ia_mps_dec_subband_tp_params_struct *sub_band_tp =
pstr_mps_state->mps_persistent_mem.sub_band_params;
ia_mps_dec_reuse_array_struct *p_array_struct = pstr_mps_state->array_struct;
WORD32 temp_1, temp_2;
WORD16 qtemp1, qtemp2;
WORD32 *qmf_output_real_dry;
WORD32 *qmf_output_imag_dry;
WORD32 *qmf_output_real_wet;
WORD32 *qmf_output_imag_wet;
WORD32 *dmx_real;
WORD32 *dmx_imag;
WORD32 *dry_ener;
WORD32 *wet_ener;
WORD16 *q_dry_ener;
WORD16 *q_wet_ener;
WORD32 *p_buffer_real, *p_buffer_imag, *p_buffer_re, *p_buffer_im;
WORD32 *p_buf_real, *p_buf_imag, *p_buf_re, *p_buf_im;
WORD32 *scale;
WORD16 *q_scale;
WORD32 damp, one_minus_damp;
WORD32 temp;
WORD32 *prev_tp_scale = sub_band_tp->prev_tp_scale;
WORD32 *old_wet_ener = sub_band_tp->old_wet_ener;
WORD16 *q_old_wet_ener = sub_band_tp->q_old_wet_ener;
WORD32 *run_wet_ener = sub_band_tp->run_wet_ener;
WORD16 *q_run_wet_ener = sub_band_tp->q_run_wet_ener;
WORD32 *old_dry_ener = sub_band_tp->old_dry_ener;
WORD16 *q_old_dry_ener = sub_band_tp->q_old_dry_ener;
WORD32 *run_dry_ener = sub_band_tp->run_dry_ener;
WORD16 *q_run_dry_ener = sub_band_tp->q_run_dry_ener;
WORD32 *hyb_output_real_dry, *hyb_output_imag_dry;
WORD32 *p_hyb_out_dry_real, *p_hyb_out_dry_imag;
WORD32 ch, n, no_scaling, i, k = 0, offset;
WORD32 i_lf = 0, i_rf = 0, i_c = 0, i_lfe = 0, i_ls = 0, i_rs = 0, i_al = 0, i_ar = 0;
WORD32 loop_counter = 0;
WORD32 num_input_channels = pstr_mps_state->num_input_channels;
WORD32 num_output_channels = pstr_mps_state->num_output_channels;
WORD32 hybrid_bands = pstr_mps_state->hybrid_bands;
WORD32 tree_config = pstr_mps_state->tree_config;
dry_ener = pstr_mps_state->mps_scratch_mem_v;
q_dry_ener = (WORD16 *)pstr_mps_state->mps_scratch_mem_v +
IXHEAAC_GET_SIZE_ALIGNED_TYPE(INPUT_CHX2, sizeof(*q_dry_ener), BYTE_ALIGN_8);
wet_ener =
dry_ener + IXHEAAC_GET_SIZE_ALIGNED_TYPE(INPUT_CHX1_5, sizeof(*wet_ener), BYTE_ALIGN_8);
q_wet_ener = q_dry_ener +
IXHEAAC_GET_SIZE_ALIGNED_TYPE(IN_CH_2XOUT_CH, sizeof(*q_wet_ener), BYTE_ALIGN_8);
scale = wet_ener + IXHEAAC_GET_SIZE_ALIGNED_TYPE(OUTPUT_CHX1_5, sizeof(*scale), BYTE_ALIGN_8);
q_scale =
q_wet_ener + IXHEAAC_GET_SIZE_ALIGNED_TYPE(OUTPUT_CHX3, sizeof(*q_scale), BYTE_ALIGN_8);
dmx_real =
scale + IXHEAAC_GET_SIZE_ALIGNED_TYPE(OUTPUT_CHX1_5, sizeof(*dmx_real), BYTE_ALIGN_8);
dmx_imag =
dmx_real + IXHEAAC_GET_SIZE_ALIGNED_TYPE(IN_CHXBP_SIZE, sizeof(*dmx_imag), BYTE_ALIGN_8);
qmf_output_real_dry = dmx_imag + IXHEAAC_GET_SIZE_ALIGNED_TYPE(
IN_CHXBP_SIZE, sizeof(*qmf_output_real_dry), BYTE_ALIGN_8);
qmf_output_imag_dry =
qmf_output_real_dry +
IXHEAAC_GET_SIZE_ALIGNED_TYPE(OUT_CHXQB, sizeof(*qmf_output_imag_dry), BYTE_ALIGN_8);
qmf_output_real_wet =
qmf_output_imag_dry +
IXHEAAC_GET_SIZE_ALIGNED_TYPE(OUT_CHXQB, sizeof(*qmf_output_real_wet), BYTE_ALIGN_8);
qmf_output_imag_wet =
qmf_output_real_wet +
IXHEAAC_GET_SIZE_ALIGNED_TYPE(OUT_CHXQB, sizeof(*qmf_output_imag_wet), BYTE_ALIGN_8);
if (sub_band_tp->update_old_ener == STP_UPDATE_ENERGY_RATE) {
sub_band_tp->update_old_ener = 1;
for (ch = 0; ch < num_input_channels; ch++) {
old_dry_ener[ch] = run_dry_ener[ch];
q_old_dry_ener[ch] = q_run_dry_ener[ch];
}
for (ch = 0; ch < num_output_channels; ch++) {
old_wet_ener[ch] = run_wet_ener[ch];
q_old_wet_ener[ch] = q_run_wet_ener[ch];
}
} else
sub_band_tp->update_old_ener++;
for (ch = 0; ch < MAX_OUTPUT_CHANNELS_MPS; ch++) {
scale[ch] = ONE_IN_Q15;
q_scale[ch] = 15;
}
switch (tree_config) {
case TREE_5151:
i_lf = 0;
i_rf = 1;
i_c = 2;
i_lfe = 3;
i_ls = 4;
i_rs = 5;
loop_counter = 6;
break;
case TREE_5152:
i_lf = 0;
i_rf = 2;
i_c = 4;
i_lfe = 5;
i_ls = 1;
i_rs = 3;
loop_counter = 5;
break;
case TREE_525:
i_lf = 0;
i_rf = 2;
i_c = 4;
i_lfe = 5;
i_ls = 1;
i_rs = 3;
loop_counter = 4;
break;
case TREE_7271:
case TREE_7272:
case TREE_7572:
i_lf = 0;
i_rf = 3;
i_c = 6;
i_lfe = 7;
i_ls = 2;
i_rs = 5;
i_al = 1;
i_ar = 4;
loop_counter = 6;
break;
case TREE_7571:
i_lf = 0;
i_rf = 3;
i_c = 6;
i_lfe = 7;
i_ls = 2;
i_rs = 5;
i_al = 1;
i_ar = 4;
loop_counter = 5;
break;
default:
break;
}
offset = ts * MAX_HYBRID_BANDS;
p_buffer_real = p_array_struct->buf_real + offset + HYBRID_BAND_BORDER;
p_buffer_imag = p_array_struct->buf_imag + offset + HYBRID_BAND_BORDER;
for (ch = 0; ch < num_output_channels; ch++) {
p_buffer_re = p_buffer_real;
p_buffer_im = p_buffer_imag;
for (i = QMF_OUT_START_IDX; i < BP_SIZE; i++) {
*qmf_output_real_wet++ = *p_buffer_re++;
*qmf_output_imag_wet++ = *p_buffer_im++;
}
p_buffer_real += TSXHB;
p_buffer_imag += TSXHB;
}
i = QMF_OUT_OFFSET * num_output_channels;
qmf_output_real_wet -= i;
qmf_output_imag_wet -= i;
p_buffer_re = qmf_output_real_dry;
p_buffer_im = qmf_output_imag_dry;
hyb_output_real_dry =
p_array_struct->hyb_output_real_dry + ts * MAX_HYBRID_BANDS + 6;
hyb_output_imag_dry =
p_array_struct->hyb_output_imag_dry + ts * MAX_HYBRID_BANDS + 6;
for (ch = 0; ch < loop_counter; ch++) {
*p_buffer_re++ = hyb_output_real_dry[0] + hyb_output_real_dry[1];
*p_buffer_im++ = hyb_output_imag_dry[0] + hyb_output_imag_dry[1];
hyb_output_real_dry += TSXHB;
hyb_output_imag_dry += TSXHB;
}
hyb_output_real_dry =
p_array_struct->hyb_output_real_dry + ts * MAX_HYBRID_BANDS + 8;
hyb_output_imag_dry =
p_array_struct->hyb_output_imag_dry + ts * MAX_HYBRID_BANDS + 8;
for (ch = 0; ch < loop_counter; ch++) {
*p_buffer_re++ = hyb_output_real_dry[0] + hyb_output_real_dry[1];
*p_buffer_im++ = hyb_output_imag_dry[0] + hyb_output_imag_dry[1];
hyb_output_real_dry += TSXHB;
hyb_output_imag_dry += TSXHB;
}
p_hyb_out_dry_real =
p_array_struct->hyb_output_real_dry + ts * MAX_HYBRID_BANDS + 10;
p_hyb_out_dry_imag =
p_array_struct->hyb_output_imag_dry + ts * MAX_HYBRID_BANDS + 10;
for (i = 3; i < BP_SIZE; i++) {
hyb_output_real_dry = p_hyb_out_dry_real;
hyb_output_imag_dry = p_hyb_out_dry_imag;
for (ch = 0; ch < loop_counter; ch++) {
*p_buffer_re++ = *hyb_output_real_dry;
*p_buffer_im++ = *hyb_output_imag_dry;
hyb_output_real_dry += TSXHB;
hyb_output_imag_dry += TSXHB;
}
p_hyb_out_dry_real++;
p_hyb_out_dry_imag++;
}
for (n = 1; n < BP_SIZE; n++) {
switch (tree_config) {
case TREE_5151:
*dmx_real = *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real = ixheaacd_mps_mult32_shr_30(*dmx_real,
tp_process_table_ptr->bpxgf[n]);
dmx_real++;
dmx_real++;
break;
case TREE_5152:
*dmx_real = *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real = ixheaacd_mps_mult32_shr_30(*dmx_real,
tp_process_table_ptr->bpxgf[n]);
dmx_real++;
dmx_real++;
break;
case TREE_525:
*dmx_real = *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real = ixheaacd_mps_mult32_shr_30(*dmx_real,
tp_process_table_ptr->bpxgf[n]);
dmx_real++;
*dmx_real = *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real = ixheaacd_mps_mult32_shr_30(*dmx_real,
tp_process_table_ptr->bpxgf[n]);
dmx_real++;
break;
case TREE_7271:
case TREE_7272:
*dmx_real = *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real = ixheaacd_mps_mult32_shr_30(*dmx_real,
tp_process_table_ptr->bpxgf[n]);
dmx_real++;
*dmx_real = *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real = ixheaacd_mps_mult32_shr_30(*dmx_real,
tp_process_table_ptr->bpxgf[n]);
dmx_real++;
break;
case TREE_7571:
*dmx_real = *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
qmf_output_real_dry++;
*dmx_real = ixheaacd_mps_mult32_shr_30(*dmx_real,
tp_process_table_ptr->bpxgf[n]);
dmx_real++;
*dmx_real = *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real = ixheaacd_mps_mult32_shr_30(*dmx_real,
tp_process_table_ptr->bpxgf[n]);
dmx_real++;
break;
case TREE_7572:
qmf_output_real_dry++;
*dmx_real = *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
qmf_output_real_dry++;
*dmx_real = ixheaacd_mps_mult32_shr_30(*dmx_real,
tp_process_table_ptr->bpxgf[n]);
dmx_real++;
*dmx_real = *qmf_output_real_dry++;
*dmx_real += *qmf_output_real_dry++;
*dmx_real = ixheaacd_mps_mult32_shr_30(*dmx_real,
tp_process_table_ptr->bpxgf[n]);
dmx_real++;
break;
default:
break;
}
}
dmx_real -= DMX_OFFSET;
for (n = 1; n < BP_SIZE; n++) {
switch (tree_config) {
case TREE_5151:
*dmx_imag = *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
*dmx_imag++ += *qmf_output_imag_dry++;
dmx_imag++;
dmx_imag[0] = ixheaacd_mps_mult32_shr_30(
dmx_imag[0], tp_process_table_ptr->bpxgf[n]);
break;
case TREE_5152:
*dmx_imag = *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
*dmx_imag++ += *qmf_output_imag_dry++;
dmx_imag++;
dmx_imag[0] = ixheaacd_mps_mult32_shr_30(
dmx_imag[0], tp_process_table_ptr->bpxgf[n]);
break;
case TREE_525:
*dmx_imag = *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
*dmx_imag = ixheaacd_mps_mult32_shr_30(dmx_imag[0],
tp_process_table_ptr->bpxgf[n]);
dmx_imag++;
*dmx_imag = *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
*dmx_imag = ixheaacd_mps_mult32_shr_30(*dmx_imag,
tp_process_table_ptr->bpxgf[n]);
dmx_imag++;
break;
case TREE_7271:
case TREE_7272:
*dmx_imag = *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
*dmx_imag = ixheaacd_mps_mult32_shr_30(*dmx_imag,
tp_process_table_ptr->bpxgf[n]);
dmx_imag++;
*dmx_imag = *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
*dmx_imag = ixheaacd_mps_mult32_shr_30(*dmx_imag,
tp_process_table_ptr->bpxgf[n]);
dmx_imag++;
break;
case TREE_7571:
*dmx_imag = *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
qmf_output_imag_dry++;
*dmx_imag = ixheaacd_mps_mult32_shr_30(*dmx_imag,
tp_process_table_ptr->bpxgf[n]);
dmx_imag++;
*dmx_imag = *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
*dmx_imag = ixheaacd_mps_mult32_shr_30(*dmx_imag,
tp_process_table_ptr->bpxgf[n]);
dmx_imag++;
break;
case TREE_7572:
qmf_output_imag_dry++;
*dmx_imag = *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
qmf_output_imag_dry++;
*dmx_imag = ixheaacd_mps_mult32_shr_30(*dmx_imag,
tp_process_table_ptr->bpxgf[n]);
dmx_imag++;
*dmx_imag = *qmf_output_imag_dry++;
*dmx_imag += *qmf_output_imag_dry++;
*dmx_imag = ixheaacd_mps_mult32_shr_30(*dmx_imag,
tp_process_table_ptr->bpxgf[n]);
dmx_imag++;
break;
default:
break;
}
}
dmx_imag -= DMX_OFFSET;
for (ch = 0; ch < min(2, num_input_channels); ch++) {
dry_ener[ch] = 0;
q_dry_ener[ch] = 15;
for (n = 1; n < BP_SIZE; n++) {
qtemp1 = 10;
temp_1 = ixheaacd_mps_mult32(*dmx_real, *dmx_real, &qtemp1, qtemp1);
dmx_real += 2;
dry_ener[ch] =
ixheaacd_mps_add32(dry_ener[ch], temp_1, &q_dry_ener[ch], qtemp1);
qtemp1 = 10;
temp_1 = ixheaacd_mps_mult32(*dmx_imag, *dmx_imag, &qtemp1, qtemp1);
dmx_imag += 2;
dry_ener[ch] =
ixheaacd_mps_add32(dry_ener[ch], temp_1, &q_dry_ener[ch], qtemp1);
}
dmx_real -= DMX_OFFSET_MINUS_ONE;
dmx_imag -= DMX_OFFSET_MINUS_ONE;
temp_1 = ixheaacd_mps_mult32_shr_15(run_dry_ener[ch], STP_LPF_COEFF1_FIX);
temp_2 = ONE_IN_Q15 - STP_LPF_COEFF1_FIX;
temp_2 = ixheaacd_mps_mult32_shr_15(temp_2, dry_ener[ch]);
run_dry_ener[ch] = ixheaacd_mps_add32(temp_1, temp_2, &(q_run_dry_ener[ch]),
q_dry_ener[ch]);
qtemp1 = q_old_dry_ener[ch];
temp_1 = ixheaacd_mps_add32(old_dry_ener[ch], ABS_THR_FIX, &qtemp1, 15);
;
dry_ener[ch] = ixheaacd_mps_div_32(dry_ener[ch], temp_1, &qtemp2);
q_dry_ener[ch] = qtemp2 + q_dry_ener[ch] - qtemp1;
}
for (ch = 0; ch < num_output_channels; ch++) {
if (ch == i_lfe) continue;
if ((tree_config >= TREE_525) && (ch == i_c)) continue;
if ((tree_config == TREE_7571) && ((ch == i_ls) || (ch == i_rs))) continue;
if ((tree_config == TREE_7572) && ((ch == i_lf) || (ch == i_rf))) continue;
wet_ener[ch] = 0;
q_wet_ener[ch] = 15;
wet_ener[ch] = 0;
q_wet_ener[ch] = 15;
for (n = FIVE; n < BP_SIZE; n++) {
qtemp1 = 10;
temp_1 = ixheaacd_mps_mult32(*qmf_output_real_wet, *qmf_output_real_wet,
&qtemp1, qtemp1);
qmf_output_real_wet++;
qtemp2 = 10;
temp_2 = ixheaacd_mps_mult32(*qmf_output_imag_wet, *qmf_output_imag_wet,
&qtemp2, qtemp2);
qmf_output_imag_wet++;
temp_1 = ixheaacd_mps_add32(temp_1, temp_2, &qtemp1, qtemp2);
temp_1 = ixheaacd_mps_mult32(temp_1, tp_process_table_ptr->bp2xgf2[n],
&qtemp1, 57);
wet_ener[ch] =
ixheaacd_mps_add32(wet_ener[ch], temp_1, &q_wet_ener[ch], qtemp1);
}
temp_1 = ixheaacd_mps_mult32_shr_15(run_wet_ener[ch], STP_LPF_COEFF1_FIX);
temp_2 = ONE_IN_Q15 - STP_LPF_COEFF1_FIX;
temp_2 = ixheaacd_mps_mult32_shr_15(temp_2, wet_ener[ch]);
run_wet_ener[ch] =
ixheaacd_mps_add32(temp_1, temp_2, &q_run_wet_ener[ch], q_wet_ener[ch]);
qtemp1 = q_old_wet_ener[ch];
temp_1 = ixheaacd_mps_add32(old_wet_ener[ch], ABS_THR_FIX, &qtemp1, 15);
wet_ener[ch] = ixheaacd_mps_div_32(wet_ener[ch], temp_1, &qtemp2);
q_wet_ener[ch] = qtemp2 + q_wet_ener[ch] - qtemp1;
}
damp = POINT_ONE_Q15;
one_minus_damp = POINT_NINE_Q15;
switch (tree_config) {
case TREE_5151:
case TREE_5152:
if (wet_ener[i_lf] != 0) {
scale[i_lf] = ixheaacd_mps_div_32(dry_ener[0], wet_ener[i_lf], &qtemp2);
q_scale[i_lf] = qtemp2 + q_dry_ener[0] - q_wet_ener[i_lf];
} else {
temp_1 = ixheaac_norm32(dry_ener[0]);
scale[i_lf] = dry_ener[0] << temp_1;
q_scale[i_lf] = q_dry_ener[0] + temp_1 - 30;
}
scale[i_lf] = ixheaacd_mps_sqrt(scale[i_lf], &(q_scale[i_lf]), sqrt_tab);
if (wet_ener[i_rf] != 0) {
scale[i_rf] = ixheaacd_mps_div_32(dry_ener[0], wet_ener[i_rf], &qtemp2);
q_scale[i_rf] = qtemp2 + q_dry_ener[0] - q_wet_ener[i_rf];
} else {
temp_1 = ixheaac_norm32(dry_ener[0]);
scale[i_rf] = dry_ener[0] << temp_1;
q_scale[i_rf] = q_dry_ener[0] + temp_1 - 30;
}
scale[i_rf] = ixheaacd_mps_sqrt(scale[i_rf], &(q_scale[i_rf]), sqrt_tab);
if (wet_ener[i_c] != 0) {
scale[i_c] = ixheaacd_mps_div_32(dry_ener[0], wet_ener[i_c], &qtemp2);
q_scale[i_c] = qtemp2 + q_dry_ener[0] - q_wet_ener[i_c];
} else {
temp_1 = ixheaac_norm32(dry_ener[0]);
scale[i_c] = dry_ener[0] << temp_1;
q_scale[i_c] = q_dry_ener[0] + temp_1 - 30;
}
scale[i_c] = ixheaacd_mps_sqrt(scale[i_c], &(q_scale[i_c]), sqrt_tab);
if (wet_ener[i_ls] != 0) {
scale[i_ls] = ixheaacd_mps_div_32(dry_ener[0], wet_ener[i_ls], &qtemp2);
q_scale[i_ls] = qtemp2 + q_dry_ener[0] - q_wet_ener[i_ls];
} else {
temp_1 = ixheaac_norm32(dry_ener[0]);
scale[i_ls] = dry_ener[0] << temp_1;
q_scale[i_ls] = q_dry_ener[0] + temp_1 - 30;
}
scale[i_ls] = ixheaacd_mps_sqrt(scale[i_ls], &(q_scale[i_ls]), sqrt_tab);
if (wet_ener[i_rs] != 0) {
scale[i_rs] = ixheaacd_mps_div_32(dry_ener[0], wet_ener[i_rs], &qtemp2);
q_scale[i_rs] = qtemp2 + q_dry_ener[0] - q_wet_ener[i_rs];
} else {
temp_1 = ixheaac_norm32(dry_ener[0]);
scale[i_rs] = dry_ener[0] << temp_1;
q_scale[i_rs] = q_dry_ener[0] + temp_1 - 30;
}
scale[i_rs] = ixheaacd_mps_sqrt(scale[i_rs], &(q_scale[i_rs]), sqrt_tab);
for (ch = 0; ch < 6; ch++) {
if (ch == 3 && tree_config == 0) continue;
temp_1 = ixheaacd_mps_mult32_shr_15(scale[ch], one_minus_damp);
scale[ch] = ixheaacd_mps_add32(temp_1, damp, &(q_scale[ch]), 15);
scale[ch] = ixheaacd_mps_convert_to_qn(scale[ch], q_scale[ch], 15);
if (scale[ch] > STP_SCALE_LIMIT_FIX) scale[ch] = STP_SCALE_LIMIT_FIX;
if (scale[ch] < ONE_BY_STP_SCALE_LIMIT)
scale[ch] = ONE_BY_STP_SCALE_LIMIT;
}
break;
case TREE_525:
if (wet_ener[i_lf] != 0) {
scale[i_lf] = ixheaacd_mps_div_32(dry_ener[0], wet_ener[i_lf], &qtemp2);
q_scale[i_lf] = qtemp2 + q_dry_ener[0] - q_wet_ener[i_lf];
} else {
temp_1 = ixheaac_norm32(dry_ener[0]);
scale[i_lf] = dry_ener[0] << temp_1;
q_scale[i_lf] = q_dry_ener[0] + temp_1 - 30;
}
scale[i_lf] = ixheaacd_mps_sqrt(scale[i_lf], &(q_scale[i_lf]), sqrt_tab);
if (wet_ener[i_rf] != 0) {
scale[i_rf] = ixheaacd_mps_div_32(dry_ener[1], wet_ener[i_rf], &qtemp2);
q_scale[i_rf] = qtemp2 + q_dry_ener[1] - q_wet_ener[i_rf];
} else {
temp_1 = ixheaac_norm32(dry_ener[1]);
scale[i_rf] = dry_ener[1] << temp_1;
q_scale[i_rf] = q_dry_ener[1] + temp_1 - 30;
}
scale[i_rf] = ixheaacd_mps_sqrt(scale[i_rf], &(q_scale[i_rf]), sqrt_tab);
if (wet_ener[i_ls] != 0) {
scale[i_ls] = ixheaacd_mps_div_32(dry_ener[0], wet_ener[i_ls], &qtemp2);
q_scale[i_ls] = qtemp2 + q_dry_ener[0] - q_wet_ener[i_ls];
} else {
temp_1 = ixheaac_norm32(dry_ener[0]);
scale[i_ls] = dry_ener[0] << temp_1;
q_scale[i_ls] = q_dry_ener[0] + temp_1 - 30;
}
scale[i_ls] = ixheaacd_mps_sqrt(scale[i_ls], &(q_scale[i_ls]), sqrt_tab);
if (wet_ener[i_rs] != 0) {
scale[i_rs] = ixheaacd_mps_div_32(dry_ener[1], wet_ener[i_rs], &qtemp2);
q_scale[i_rs] = qtemp2 + q_dry_ener[1] - q_wet_ener[i_rs];
} else {
temp_1 = ixheaac_norm32(dry_ener[1]);
scale[i_rs] = dry_ener[1] << temp_1;
q_scale[i_rs] = q_dry_ener[1] + temp_1 - 30;
}
scale[i_rs] = ixheaacd_mps_sqrt(scale[i_rs], &(q_scale[i_rs]), sqrt_tab);
for (ch = 0; ch < 4; ch++) {
temp_1 = ixheaacd_mps_mult32_shr_15(scale[ch], one_minus_damp);
scale[ch] = ixheaacd_mps_add32(temp_1, damp, &(q_scale[ch]), 15);
scale[ch] = ixheaacd_mps_convert_to_qn(scale[ch], q_scale[ch], 15);
if (scale[ch] > STP_SCALE_LIMIT_FIX) scale[ch] = STP_SCALE_LIMIT_FIX;
if (scale[ch] < ONE_BY_STP_SCALE_LIMIT)
scale[ch] = ONE_BY_STP_SCALE_LIMIT;
}
break;
case TREE_7271:
case TREE_7272:
if (wet_ener[i_lf] != 0) {
scale[i_lf] = ixheaacd_mps_div_32(dry_ener[0], wet_ener[i_lf], &qtemp2);
q_scale[i_lf] = qtemp2 + q_dry_ener[0] - q_wet_ener[i_lf];
} else {
temp_1 = ixheaac_norm32(dry_ener[0]);
scale[i_lf] = dry_ener[0] << temp_1;
q_scale[i_lf] = q_dry_ener[0] + temp_1 - 30;
}
scale[i_lf] = ixheaacd_mps_sqrt(scale[i_lf], &(q_scale[i_lf]), sqrt_tab);
if (wet_ener[i_rf] != 0) {
scale[i_rf] = ixheaacd_mps_div_32(dry_ener[1], wet_ener[i_rf], &qtemp2);
q_scale[i_rf] = qtemp2 + q_dry_ener[1] - q_wet_ener[i_rf];
} else {
temp_1 = ixheaac_norm32(dry_ener[1]);
scale[i_rf] = dry_ener[1] << temp_1;
q_scale[i_rf] = q_dry_ener[1] + temp_1 - 30;
}
scale[i_rf] = ixheaacd_mps_sqrt(scale[i_rf], &(q_scale[i_rf]), sqrt_tab);
if (wet_ener[i_ls] != 0) {
scale[i_ls] = ixheaacd_mps_div_32(dry_ener[0], wet_ener[i_ls], &qtemp2);
q_scale[i_ls] = qtemp2 + q_dry_ener[0] - q_wet_ener[i_ls];
} else {
temp_1 = ixheaac_norm32(dry_ener[0]);
scale[i_ls] = dry_ener[0] << temp_1;
q_scale[i_ls] = q_dry_ener[0] + temp_1 - 30;
}
scale[i_ls] = ixheaacd_mps_sqrt(scale[i_ls], &(q_scale[i_ls]), sqrt_tab);
if (wet_ener[i_rs] != 0) {
scale[i_rs] = ixheaacd_mps_div_32(dry_ener[1], wet_ener[i_rs], &qtemp2);
q_scale[i_rs] = qtemp2 + q_dry_ener[1] - q_wet_ener[i_rs];
} else {
temp_1 = ixheaac_norm32(dry_ener[1]);
scale[i_rs] = dry_ener[1] << temp_1;
q_scale[i_rs] = q_dry_ener[1] + temp_1 - 30;
}
scale[i_rs] = ixheaacd_mps_sqrt(scale[i_rs], &(q_scale[i_rs]), sqrt_tab);
if (wet_ener[i_al] != 0) {
scale[i_al] = ixheaacd_mps_div_32(dry_ener[0], wet_ener[i_al], &qtemp2);
q_scale[i_al] = qtemp2 + q_dry_ener[0] - q_wet_ener[i_al];
} else {
temp_1 = ixheaac_norm32(dry_ener[0]);
scale[i_al] = dry_ener[0] << temp_1;
q_scale[i_al] = q_dry_ener[0] + temp_1 - 30;
}
scale[i_al] = ixheaacd_mps_sqrt(scale[i_al], &(q_scale[i_al]), sqrt_tab);
if (wet_ener[i_ar] != 0) {
scale[i_ar] = ixheaacd_mps_div_32(dry_ener[1], wet_ener[i_ar], &qtemp2);
q_scale[i_ar] = qtemp2 + q_dry_ener[1] - q_wet_ener[i_ar];
} else {
temp_1 = ixheaac_norm32(dry_ener[1]);
scale[i_ar] = dry_ener[1] << temp_1;
q_scale[i_ar] = q_dry_ener[1] + temp_1 - 30;