/******************************************************************************
*
* 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 <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include "impd_type_def.h"
#include "impd_drc_extr_delta_coded_info.h"
#include "impd_drc_common.h"
#include "impd_drc_struct.h"
#include "impd_drc_interface.h"
#include "impd_drc_filter_bank.h"
#include "impd_drc_gain_dec.h"
#include "impd_parametric_drc_dec.h"
#include "impd_drc_multi_band.h"
#include "impd_drc_process_audio.h"
#include "impd_drc_eq.h"
#include "impd_drc_gain_decoder.h"
extern ia_cicp_sigmoid_characteristic_param_struct
pstr_cicp_sigmoid_characteristic_param[];
WORD32 impd_gain_db_to_lin(ia_interp_params_struct* interp_params_str,
WORD32 drc_band, FLOAT32 in_param_db_gain,
FLOAT32 in_param_db_slope,
FLOAT32* out_param_lin_gain,
FLOAT32* out_param_lin_slope) {
FLOAT32 loc_db_gain = in_param_db_gain;
FLOAT32 gain_ratio = 1.0;
ia_gain_modifiers_struct* pstr_gain_modifiers =
interp_params_str->pstr_gain_modifiers;
if (interp_params_str->gain_modification_flag) {
if ((interp_params_str->characteristic_index > 0) &&
(loc_db_gain != 0.0f)) {
gain_ratio = 1.0f;
}
if (loc_db_gain < 0.0f) {
gain_ratio *= interp_params_str->compress;
} else {
gain_ratio *= interp_params_str->boost;
}
}
if (pstr_gain_modifiers->gain_scaling_flag[drc_band] == 1) {
if (loc_db_gain < 0.0) {
gain_ratio *= pstr_gain_modifiers->attn_scaling[drc_band];
} else {
gain_ratio *= pstr_gain_modifiers->ampl_scaling[drc_band];
}
}
if ((interp_params_str->pstr_ducking_modifiers->ducking_scaling_flag == 1) &&
(interp_params_str->ducking_flag == 1)) {
gain_ratio *= interp_params_str->pstr_ducking_modifiers->ducking_scaling;
}
{
*out_param_lin_gain =
(FLOAT32)pow(2.0, (FLOAT64)(gain_ratio * loc_db_gain / 6.0f));
*out_param_lin_slope = SLOPE_FACTOR_DB_TO_LINEAR * gain_ratio *
*out_param_lin_gain * in_param_db_slope;
if (pstr_gain_modifiers->gain_offset_flag[drc_band] == 1) {
*out_param_lin_gain *= (FLOAT32)pow(
2.0, (FLOAT64)(pstr_gain_modifiers->gain_offset[drc_band] / 6.0f));
}
if ((interp_params_str->limiter_peak_target_present == 1) &&
(interp_params_str->clipping_flag == 1)) {
*out_param_lin_gain *= (FLOAT32)pow(
2.0, max(0.0, -interp_params_str->limiter_peak_target -
interp_params_str->loudness_normalization_gain_db) /
6.0);
if (*out_param_lin_gain >= 1.0) {
*out_param_lin_gain = 1.0;
*out_param_lin_slope = 0.0;
}
}
}
return (0);
}
WORD32
impd_compressor_io_sigmoid(
ia_split_drc_characteristic_struct* split_drc_characteristic,
FLOAT32 in_db_level, FLOAT32* out_db_gain) {
FLOAT32 tmp;
FLOAT32 in_out_ratio = split_drc_characteristic->in_out_ratio;
FLOAT32 gainDbLimit = split_drc_characteristic->gain;
FLOAT32 exp = split_drc_characteristic->exp;
tmp = (DRC_INPUT_LOUDNESS_TARGET - in_db_level) * in_out_ratio;
if (exp < 1000.0f) {
FLOAT32 x = tmp / gainDbLimit;
if (x < 0.0f) {
return (UNEXPECTED_ERROR);
}
*out_db_gain = (FLOAT32)(tmp / pow(1.0f + pow(x, exp), 1.0f / exp));
} else {
*out_db_gain = tmp;
}
if (split_drc_characteristic->flip_sign == 1) {
*out_db_gain = -*out_db_gain;
}
return (0);
}
WORD32
impd_compressor_io_sigmoid_inv(
ia_split_drc_characteristic_struct* split_drc_characteristic,
FLOAT32 loc_db_gain, FLOAT32* in_level) {
FLOAT32 in_out_ratio = split_drc_characteristic->in_out_ratio;
FLOAT32 gainDbLimit = split_drc_characteristic->gain;
FLOAT32 exp = split_drc_characteristic->exp;
FLOAT32 tmp = loc_db_gain;
if (split_drc_characteristic->flip_sign == 1) {
tmp = -loc_db_gain;
}
if (exp < 1000.0f) {
FLOAT32 x = tmp / gainDbLimit;
if (x < 0.0f) {
return (UNEXPECTED_ERROR);
}
tmp = (FLOAT32)(tmp / pow(1.0f - pow(x, exp), 1.0f / exp));
}
*in_level = DRC_INPUT_LOUDNESS_TARGET - tmp / in_out_ratio;
return (0);
}
WORD32
impd_compressor_io_nodes_lt(
ia_split_drc_characteristic_struct* split_drc_characteristic,
FLOAT32 in_db_level, FLOAT32* out_db_gain) {
WORD32 n;
FLOAT32 w;
FLOAT32* node_level = split_drc_characteristic->node_level;
FLOAT32* node_gain = split_drc_characteristic->node_gain;
if (in_db_level > DRC_INPUT_LOUDNESS_TARGET) {
return (UNEXPECTED_ERROR);
}
for (n = 1; n <= split_drc_characteristic->characteristic_node_count; n++) {
if ((in_db_level <= node_level[n - 1]) && (in_db_level > node_level[n])) {
w = (node_level[n] - in_db_level) / (node_level[n] - node_level[n - 1]);
*out_db_gain = (FLOAT32)(w * node_gain[n - 1] + (1.0 - w) * node_gain[n]);
}
}
*out_db_gain = node_gain[split_drc_characteristic->characteristic_node_count];
return (0);
}
WORD32
impd_compressor_io_nodes_rt(
ia_split_drc_characteristic_struct* split_drc_characteristic,
FLOAT32 in_db_level, FLOAT32* out_db_gain) {
WORD32 n;
FLOAT32 w;
FLOAT32* node_level = split_drc_characteristic->node_level;
FLOAT32* node_gain = split_drc_characteristic->node_gain;
if (in_db_level < DRC_INPUT_LOUDNESS_TARGET) {
return (UNEXPECTED_ERROR);
}
for (n = 1; n <= split_drc_characteristic->characteristic_node_count; n++) {
if ((in_db_level >= node_level[n - 1]) && (in_db_level < node_level[n])) {
w = (FLOAT32)(node_level[n] - in_db_level) /
(node_level[n] - node_level[n - 1]);
*out_db_gain = (FLOAT32)(w * node_gain[n - 1] + (1.0 - w) * node_gain[n]);
}
}
*out_db_gain =
(node_gain[split_drc_characteristic->characteristic_node_count]);
return (0);
}
WORD32
impd_compressor_io_nodes_inverse(
ia_split_drc_characteristic_struct* split_drc_characteristic,
FLOAT32 loc_db_gain, FLOAT32* in_level) {
WORD32 n;
FLOAT32 w;
FLOAT32* node_level = split_drc_characteristic->node_level;
FLOAT32* node_gain = split_drc_characteristic->node_gain;
WORD32 node_count = split_drc_characteristic->characteristic_node_count;
if (node_gain[1] < 0.0f) {
if (loc_db_gain <= node_gain[node_count]) {
*in_level = node_level[node_count];
} else {
if (loc_db_gain >= 0.0f) {
*in_level = DRC_INPUT_LOUDNESS_TARGET;
} else {
for (n = 1; n <= node_count; n++) {
if ((loc_db_gain <= node_gain[n - 1]) &&
(loc_db_gain > node_gain[n])) {
w = (node_gain[n] - loc_db_gain) /
(node_gain[n] - node_gain[n - 1]);
*in_level =
(FLOAT32)(w * node_level[n - 1] + (1.0 - w) * node_level[n]);
}
}
}
}
} else {
if (loc_db_gain >= node_gain[node_count]) {
*in_level = node_level[node_count];
} else {
if (loc_db_gain <= 0.0f) {
*in_level = DRC_INPUT_LOUDNESS_TARGET;
} else {
for (n = 1; n <= node_count; n++) {
if ((loc_db_gain >= node_gain[n - 1]) &&
(loc_db_gain < node_gain[n])) {
w = (FLOAT32)(node_gain[n] - loc_db_gain) /
(node_gain[n] - node_gain[n - 1]);
*in_level =
(FLOAT32)(w * node_level[n - 1] + (1.0 - w) * node_level[n]);
}
}
}
}
}
return (0);
}
WORD32
impd_map_gain(
ia_split_drc_characteristic_struct* split_drc_characteristic_source,
ia_split_drc_characteristic_struct* split_drc_characteristic_target,
FLOAT32 gain_in_db, FLOAT32* gain_out_db) {
FLOAT32 inLevel;
WORD32 err = 0;
switch (split_drc_characteristic_source->characteristic_format) {
case CHARACTERISTIC_SIGMOID:
err = impd_compressor_io_sigmoid_inv(split_drc_characteristic_source,
gain_in_db, &inLevel);
if (err) return (err);
break;
case CHARACTERISTIC_NODES:
err = impd_compressor_io_nodes_inverse(split_drc_characteristic_source,
gain_in_db, &inLevel);
if (err) return (err);
break;
case CHARACTERISTIC_PASS_THRU:
inLevel = gain_in_db;
break;
default:
return (UNEXPECTED_ERROR);
break;
}
switch (split_drc_characteristic_target->characteristic_format) {
case CHARACTERISTIC_SIGMOID:
err = impd_compressor_io_sigmoid(split_drc_characteristic_target, inLevel,
gain_out_db);
if (err) return (err);
break;
case CHARACTERISTIC_NODES:
if (inLevel < DRC_INPUT_LOUDNESS_TARGET) {
err = impd_compressor_io_nodes_lt(split_drc_characteristic_target,
inLevel, gain_out_db);
if (err) return (err);
} else {
err = impd_compressor_io_nodes_rt(split_drc_characteristic_target,
inLevel, gain_out_db);
if (err) return (err);
}
break;
case CHARACTERISTIC_PASS_THRU:
*gain_out_db = inLevel;
break;
default:
break;
}
return (0);
}
WORD32
impd_conv_to_linear_domain(ia_interp_params_struct* interp_params_str,
WORD32 drc_band, FLOAT32 in_param_db_gain,
FLOAT32 in_param_db_slope,
FLOAT32* out_param_lin_gain,
FLOAT32* out_param_lin_slope) {
WORD32 err = 0;
FLOAT32 loc_db_gain = in_param_db_gain;
FLOAT32 gain_ratio = 1.0;
FLOAT32 mapped_db_gain;
ia_gain_modifiers_struct* pstr_gain_modifiers =
interp_params_str->pstr_gain_modifiers;
if (interp_params_str->gain_modification_flag) {
ia_split_drc_characteristic_struct* split_drc_characteristic_source;
WORD32 slopeIsNegative;
if (interp_params_str->drc_characteristic_present) {
if (interp_params_str->drc_source_characteristic_cicp_format) {
} else {
slopeIsNegative = 0;
split_drc_characteristic_source =
interp_params_str->split_source_characteristic_left;
if (split_drc_characteristic_source->characteristic_format == 0) {
slopeIsNegative = 1;
} else {
if (split_drc_characteristic_source->node_gain[1] > 0.0f) {
slopeIsNegative = 1;
}
}
if (loc_db_gain == 0.0f) {
if (((pstr_gain_modifiers
->target_characteristic_left_present[drc_band] == 1) &&
(interp_params_str->split_target_characteristic_left
->characteristic_format == CHARACTERISTIC_PASS_THRU)) ||
((pstr_gain_modifiers
->target_characteristic_right_present[drc_band] == 1) &&
(interp_params_str->split_target_characteristic_right
->characteristic_format == CHARACTERISTIC_PASS_THRU))) {
mapped_db_gain = DRC_INPUT_LOUDNESS_TARGET;
loc_db_gain = DRC_INPUT_LOUDNESS_TARGET;
}
} else {
if (((loc_db_gain > 0.0f) && (slopeIsNegative == 1)) ||
((loc_db_gain < 0.0f) && (slopeIsNegative == 0))) {
if (pstr_gain_modifiers
->target_characteristic_left_present[drc_band] == 1) {
err = impd_map_gain(
split_drc_characteristic_source,
interp_params_str->split_target_characteristic_left,
loc_db_gain, &mapped_db_gain);
if (err) return (err);
gain_ratio = mapped_db_gain / loc_db_gain;
}
} else if (((loc_db_gain < 0.0f) && (slopeIsNegative == 1)) ||
((loc_db_gain > 0.0f) && (slopeIsNegative == 0))) {
if (pstr_gain_modifiers
->target_characteristic_right_present[drc_band] == 1) {
split_drc_characteristic_source =
interp_params_str->split_source_characteristic_right;
err = impd_map_gain(
split_drc_characteristic_source,
interp_params_str->split_target_characteristic_right,
loc_db_gain, &mapped_db_gain);
if (err) return (err);
gain_ratio = mapped_db_gain / loc_db_gain;
}
}
}
}
}
if (loc_db_gain < 0.0f) {
gain_ratio *= interp_params_str->compress;
} else {
gain_ratio *= interp_params_str->boost;
}
}
if (pstr_gain_modifiers->gain_scaling_flag[drc_band] == 1) {
if (loc_db_gain < 0.0) {
gain_ratio *= pstr_gain_modifiers->attn_scaling[drc_band];
} else {
gain_ratio *= pstr_gain_modifiers->ampl_scaling[drc_band];
}
}
if ((interp_params_str->pstr_ducking_modifiers->ducking_scaling_flag == 1) &&
(interp_params_str->ducking_flag == 1)) {
gain_ratio *= interp_params_str->pstr_ducking_modifiers->ducking_scaling;
}
if (interp_params_str->interpolation_loud_eq == 1) {
*out_param_lin_gain =
gain_ratio * loc_db_gain + pstr_gain_modifiers->gain_offset[drc_band];
*out_param_lin_slope = 0.0f;
} else {
*out_param_lin_gain =
(FLOAT32)pow(2.0, (FLOAT64)(gain_ratio * loc_db_gain / 6.0f));
*out_param_lin_slope = SLOPE_FACTOR_DB_TO_LINEAR * gain_ratio *
*out_param_lin_gain * in_param_db_slope;
if (pstr_gain_modifiers->gain_offset_flag[drc_band] == 1) {
*out_param_lin_gain *= (FLOAT32)pow(
2.0, (FLOAT64)(pstr_gain_modifiers->gain_offset[drc_band] / 6.0f));
}
if ((interp_params_str->limiter_peak_target_present == 1) &&
(interp_params_str->clipping_flag == 1)) {
*out_param_lin_gain *= (FLOAT32)pow(
2.0, max(0.0, -interp_params_str->limiter_peak_target -
interp_params_str->loudness_normalization_gain_db) /
6.0);
if (*out_param_lin_gain >= 1.0) {
*out_param_lin_gain = 1.0;
*out_param_lin_slope = 0.0;
}
}
}
return (0);
}
WORD32 impd_interpolate_drc_gain(ia_interp_params_struct* interp_params_str,
WORD32 drc_band, WORD32 gain_step_tdomain,
FLOAT32 gain0, FLOAT32 gain1, FLOAT32 slope0,
FLOAT32 slope1, FLOAT32* result) {
WORD32 err = 0;
WORD32 n;
FLOAT32 k1, k2, a, b, c, d;
FLOAT32 slope_t1;
FLOAT32 slope_t2;
FLOAT32 gain_t1;
FLOAT32 gain_t2;
WORD32 cubic_interpolation = 1;
WORD32 node_inser;
FLOAT32 node_inser_float;
if (gain_step_tdomain <= 0) {
return (UNEXPECTED_ERROR);
}
if (interp_params_str->gain_interpolation_type ==
GAIN_INTERPOLATION_TYPE_SPLINE) {
err = impd_conv_to_linear_domain(interp_params_str, drc_band, gain0, slope0,
&gain_t1, &slope_t1);
if (err) return (err);
err = impd_conv_to_linear_domain(interp_params_str, drc_band, gain1, slope1,
&gain_t2, &slope_t2);
if (err) return (err);
slope_t1 = slope_t1 / (FLOAT32)interp_params_str->delta_tmin;
slope_t2 = slope_t2 / (FLOAT32)interp_params_str->delta_tmin;
if ((FLOAT32)fabs((FLOAT64)slope_t1) > (FLOAT32)fabs((FLOAT64)slope_t2)) {
node_inser_float = 2.0f *
(gain_t2 - gain_t1 - slope_t2 * gain_step_tdomain) /
(slope_t1 - slope_t2);
node_inser = (WORD32)(0.5f + node_inser_float);
if ((node_inser >= 0) && (node_inser < gain_step_tdomain)) {
cubic_interpolation = 0;
result[0] = gain_t1;
result[gain_step_tdomain] = gain_t2;
a = 0.5f * (slope_t2 - slope_t1) / node_inser_float;
b = slope_t1;
c = gain_t1;
for (n = 1; n < node_inser; n++) {
FLOAT32 t = (FLOAT32)n;
result[n] = (a * t + b) * t + c;
result[n] = max(0.0f, result[n]);
}
a = slope_t2;
b = gain_t2;
for (; n < gain_step_tdomain; n++) {
FLOAT32 t = (FLOAT32)(n - gain_step_tdomain);
result[n] = a * t + b;
}
}
} else if ((FLOAT32)fabs((FLOAT64)slope_t1) <
(FLOAT32)fabs((FLOAT64)slope_t2)) {
node_inser_float = 2.0f *
(gain_t1 - gain_t2 + slope_t1 * gain_step_tdomain) /
(slope_t1 - slope_t2);
node_inser_float = gain_step_tdomain - node_inser_float;
node_inser = (WORD32)(0.5f + node_inser_float);
if ((node_inser >= 0) && (node_inser < gain_step_tdomain)) {
cubic_interpolation = 0;
result[0] = gain_t1;
result[gain_step_tdomain] = gain_t2;
a = slope_t1;
b = gain_t1;
for (n = 1; n < node_inser; n++) {
FLOAT32 t = (FLOAT32)n;
result[n] = a * t + b;
}
a = (slope_t2 - slope_t1) /
(2.0f * (gain_step_tdomain - node_inser_float));
b = -slope_t2;
c = gain_t2;
for (; n < gain_step_tdomain; n++) {
FLOAT32 t = (FLOAT32)(gain_step_tdomain - n);
result[n] = (a * t + b) * t + c;
result[n] = max(0.0f, result[n]);
}
}
}
if (cubic_interpolation == 1) {
FLOAT32 gain_step_inv = 1.0f / (FLOAT32)gain_step_tdomain;
FLOAT32 gain_step_inv2 = gain_step_inv * gain_step_inv;
k1 = (gain_t2 - gain_t1) * gain_step_inv2;
k2 = slope_t2 + slope_t1;
a = gain_step_inv * (gain_step_inv * k2 - 2.0f * k1);
b = 3.0f * k1 - gain_step_inv * (k2 + slope_t1);
c = slope_t1;
d = gain_t1;
result[0] = gain_t1;
result[gain_step_tdomain] = gain_t2;
for (n = 1; n < gain_step_tdomain; n++) {
FLOAT32 t = (FLOAT32)n;
result[n] = (((a * t + b) * t + c) * t) + d;
result[n] = max(0.0f, result[n]);
}
}
} else {
err = impd_conv_to_linear_domain(interp_params_str, drc_band, gain1, slope1,
&gain_t2, &slope_t2);
if (err) return (err);
a = 0;
b = gain_t2;
result[0] = gain_t2;
result[gain_step_tdomain] = gain_t2;
for (n = 1; n < gain_step_tdomain; n++) {
FLOAT32 t = (FLOAT32)n;
result[n] = a * t + b;
}
}
return 0;
}
WORD32
impd_advance_buf(WORD32 drc_frame_size, ia_gain_buffer_struct* pstr_gain_buf) {
WORD32 n;
ia_interp_buf_struct* buf_interpolation;
for (n = 0; n < pstr_gain_buf->buf_interpolation_count; n++) {
buf_interpolation = &(pstr_gain_buf->buf_interpolation[n]);
buf_interpolation->prev_node = buf_interpolation->str_node;
buf_interpolation->prev_node.time -= drc_frame_size;
memmove(buf_interpolation->lpcm_gains,
buf_interpolation->lpcm_gains + drc_frame_size,
sizeof(FLOAT32) * (drc_frame_size + MAX_SIGNAL_DELAY));
}
return (0);
}
WORD32
impd_concatenate_segments(WORD32 drc_frame_size, WORD32 drc_band,
ia_interp_params_struct* interp_params_str,
ia_spline_nodes_struct* str_spline_nodes,
ia_interp_buf_struct* buf_interpolation) {
WORD32 timePrev, duration, n, err = 0;
FLOAT32 loc_db_gain = 0.0f, prev_db_gain, slope = 0.0f, slopePrev;
timePrev = buf_interpolation->prev_node.time;
prev_db_gain = buf_interpolation->prev_node.loc_db_gain;
slopePrev = buf_interpolation->prev_node.slope;
for (n = 0; n < str_spline_nodes->num_nodes; n++) {
duration = str_spline_nodes->str_node[n].time - timePrev;
loc_db_gain = str_spline_nodes->str_node[n].loc_db_gain;
slope = str_spline_nodes->str_node[n].slope;
err = impd_interpolate_drc_gain(
interp_params_str, drc_band, duration, prev_db_gain, loc_db_gain,
slopePrev, slope, buf_interpolation->lpcm_gains + MAX_SIGNAL_DELAY +
drc_frame_size + timePrev);
if (err) return (err);
timePrev = str_spline_nodes->str_node[n].time;
prev_db_gain = loc_db_gain;
slopePrev = slope;
}
buf_interpolation->str_node.loc_db_gain = loc_db_gain;
buf_interpolation->str_node.slope = slope;
buf_interpolation->str_node.time = timePrev;
return (0);
}
WORD32
impd_get_drc_gain(ia_drc_gain_dec_struct* p_drc_gain_dec_structs,
ia_drc_config* pstr_drc_config,
ia_drc_gain_struct* pstr_drc_gain, FLOAT32 compress,
FLOAT32 boost, WORD32 characteristic_index,
FLOAT32 loudness_normalization_gain_db, WORD32 sel_drc_index,
ia_drc_gain_buffers_struct* drc_gain_buffers) {
ia_drc_params_struct* ia_drc_params_struct =
&(p_drc_gain_dec_structs->ia_drc_params_struct);
WORD32 drc_instructions_index =
ia_drc_params_struct->sel_drc_array[sel_drc_index].drc_instructions_index;
if (drc_instructions_index >= 0) {
WORD32 b, g, gainElementIndex, err = 0;
WORD32 parametricDrcInstanceIndex = 0;
ia_interp_params_struct interp_params_str = {0};
ia_drc_instructions_struct* str_drc_instruction_str =
&(pstr_drc_config->str_drc_instruction_str[drc_instructions_index]);
WORD32 drc_set_effect = str_drc_instruction_str->drc_set_effect;
WORD32 num_drc_ch_groups = str_drc_instruction_str->num_drc_ch_groups;
ia_uni_drc_coeffs_struct* str_p_loc_drc_coefficients_uni_drc = NULL;
WORD32 drc_coeff_idx =
ia_drc_params_struct->sel_drc_array[sel_drc_index].drc_coeff_idx;
if (drc_coeff_idx >= 0) {
str_p_loc_drc_coefficients_uni_drc =
&(pstr_drc_config->str_p_loc_drc_coefficients_uni_drc[drc_coeff_idx]);
interp_params_str.interpolation_loud_eq = 0;
} else {
return (UNEXPECTED_ERROR);
}
interp_params_str.loudness_normalization_gain_db =
loudness_normalization_gain_db;
interp_params_str.characteristic_index = characteristic_index;
interp_params_str.compress = compress;
interp_params_str.boost = boost;
interp_params_str.limiter_peak_target_present =
str_drc_instruction_str->limiter_peak_target_present;
interp_params_str.limiter_peak_target =
str_drc_instruction_str->limiter_peak_target;
if (((drc_set_effect & (EFFECT_BIT_DUCK_OTHER | EFFECT_BIT_DUCK_SELF)) ==
0) &&
(drc_set_effect != EFFECT_BIT_FADE) &&
(drc_set_effect != EFFECT_BIT_CLIPPING)) {
interp_params_str.gain_modification_flag = 1;
} else {
interp_params_str.gain_modification_flag = 0;
}
if (drc_set_effect & (EFFECT_BIT_DUCK_OTHER | EFFECT_BIT_DUCK_SELF)) {
interp_params_str.ducking_flag = 1;
} else {
interp_params_str.ducking_flag = 0;
}
if (drc_set_effect == EFFECT_BIT_CLIPPING) {
interp_params_str.clipping_flag = 1;
} else {
interp_params_str.clipping_flag = 0;
}
err = impd_advance_buf(ia_drc_params_struct->drc_frame_size,
&(drc_gain_buffers->pstr_gain_buf[sel_drc_index]));
if (err) return (err);
gainElementIndex = 0;
for (g = 0; g < num_drc_ch_groups; g++) {
WORD32 gainSet = 0;
WORD32 num_drc_bands = 0;
interp_params_str.gain_interpolation_type =
str_drc_instruction_str->gain_interpolation_type_for_channel_group[g];
interp_params_str.delta_tmin =
str_drc_instruction_str->time_delta_min_for_channel_group[g];
interp_params_str.pstr_ducking_modifiers = &(
str_drc_instruction_str->str_ducking_modifiers_for_channel_group[g]);
interp_params_str.pstr_gain_modifiers =
&(str_drc_instruction_str->str_gain_modifiers_of_ch_group[g]);
if (str_drc_instruction_str->ch_group_parametric_drc_flag[g] == 0) {
gainSet = str_drc_instruction_str->gain_set_index_for_channel_group[g];
num_drc_bands = str_drc_instruction_str->band_count_of_ch_group[g];
for (b = 0; b < num_drc_bands; b++) {
ia_gain_params_struct* gain_params =
&(str_p_loc_drc_coefficients_uni_drc->gain_set_params[gainSet]
.gain_params[b]);
WORD32 seq = gain_params->gain_seq_idx;
interp_params_str.drc_characteristic_present =
gain_params->drc_characteristic_present;
interp_params_str.drc_source_characteristic_cicp_format =
gain_params->drc_characteristic_format_is_cicp;
interp_params_str.source_drc_characteristic =
gain_params->drc_characteristic;
interp_params_str.split_source_characteristic_left = &(
str_p_loc_drc_coefficients_uni_drc->str_split_characteristic_left
[gain_params->drc_characteristic_left_index]);
interp_params_str.split_source_characteristic_right = &(
str_p_loc_drc_coefficients_uni_drc->str_split_characteristic_right
[gain_params->drc_characteristic_right_index]);
interp_params_str.split_target_characteristic_left = &(
str_p_loc_drc_coefficients_uni_drc->str_split_characteristic_left
[interp_params_str.pstr_gain_modifiers
->target_characteristic_left_index[b]]);
interp_params_str.split_target_characteristic_right = &(
str_p_loc_drc_coefficients_uni_drc->str_split_characteristic_right
[interp_params_str.pstr_gain_modifiers
->target_characteristic_right_index[b]]);
err = impd_concatenate_segments(
ia_drc_params_struct->drc_frame_size, b, &interp_params_str,
&(pstr_drc_gain->drc_gain_sequence[seq].str_spline_nodes[0]),
&(drc_gain_buffers->pstr_gain_buf[sel_drc_index]
.buf_interpolation[gainElementIndex]));
if (err) return (err);
gainElementIndex++;
}
} else {
if (ia_drc_params_struct->sub_band_domain_mode ==
SUBBAND_DOMAIN_MODE_OFF &&
!(p_drc_gain_dec_structs->parametricdrc_params
.str_parametric_drc_instance_params
[parametricDrcInstanceIndex]
.parametric_drc_type == PARAM_DRC_TYPE_LIM)) {
err = impd_parametric_drc_instance_process(
p_drc_gain_dec_structs->audio_in_out_buf.audio_in_out_buf, NULL,
NULL, &p_drc_gain_dec_structs->parametricdrc_params,
&p_drc_gain_dec_structs->parametricdrc_params
.str_parametric_drc_instance_params
[parametricDrcInstanceIndex]);
if (err) return (err);
err = impd_concatenate_segments(
ia_drc_params_struct->drc_frame_size, 0, &interp_params_str,
&p_drc_gain_dec_structs->parametricdrc_params
.str_parametric_drc_instance_params
[parametricDrcInstanceIndex]
.str_spline_nodes,
&(drc_gain_buffers->pstr_gain_buf[sel_drc_index]
.buf_interpolation[gainElementIndex]));
if (err) return (err);
} else if (ia_drc_params_struct->sub_band_domain_mode ==
SUBBAND_DOMAIN_MODE_OFF &&
p_drc_gain_dec_structs->parametricdrc_params
.str_parametric_drc_instance_params
[parametricDrcInstanceIndex]
.parametric_drc_type == PARAM_DRC_TYPE_LIM) {
FLOAT32* lpcm_gains = (drc_gain_buffers->pstr_gain_buf[sel_drc_index]
.buf_interpolation[gainElementIndex])
.lpcm_gains +
MAX_SIGNAL_DELAY;
err = impd_parametric_lim_type_drc_process(
p_drc_gain_dec_structs->audio_in_out_buf.audio_in_out_buf,
loudness_normalization_gain_db,
&p_drc_gain_dec_structs->parametricdrc_params
.str_parametric_drc_instance_params
[parametricDrcInstanceIndex]
.str_parametric_drc_type_lim_params,
lpcm_gains);
if (err) return (err);
} else if (ia_drc_params_struct->sub_band_domain_mode !=
SUBBAND_DOMAIN_MODE_OFF &&
!(p_drc_gain_dec_structs->parametricdrc_params
.str_parametric_drc_instance_params
[parametricDrcInstanceIndex]
.parametric_drc_type == PARAM_DRC_TYPE_LIM)) {
err = impd_parametric_drc_instance_process(
NULL, p_drc_gain_dec_structs->audio_in_out_buf.audio_real_buff,
p_drc_gain_dec_structs->audio_in_out_buf.audio_imag_buff,
&p_drc_gain_dec_structs->parametricdrc_params,
&p_drc_gain_dec_structs->parametricdrc_params
.str_parametric_drc_instance_params
[parametricDrcInstanceIndex]);
if (err) return (err);
err = impd_concatenate_segments(
ia_drc_params_struct->drc_frame_size, 0, &interp_params_str,
&p_drc_gain_dec_structs->parametricdrc_params
.str_parametric_drc_instance_params
[parametricDrcInstanceIndex]
.str_spline_nodes,
&(drc_gain_buffers->pstr_gain_buf[sel_drc_index]
.buf_interpolation[gainElementIndex]));
if (err) return (err);
} else {
return (UNEXPECTED_ERROR);
}
gainElementIndex++;
parametricDrcInstanceIndex++;
}
}
}
return (0);
}