088122e748
* Combined Workspace for Encoder and Decoder * Addressed review comments and some minor edits --------- Co-authored-by: Divya B M <100655@ittiam.com>
58 lines
2.1 KiB
C
58 lines
2.1 KiB
C
/******************************************************************************
|
|
* *
|
|
* 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 "ixheaac_type_def.h"
|
|
#include "ixheaac_constants.h"
|
|
#include "ixheaace_aac_constants.h"
|
|
|
|
#include "ixheaace_psy_utils_spreading.h"
|
|
|
|
VOID ia_enhaacplus_enc_spreading_max(const WORD32 sfb_active, const FLOAT32 *ptr_mask_low_factor,
|
|
const FLOAT32 *ptr_mask_high_factor,
|
|
FLOAT32 *ptr_spreaded_energy) {
|
|
WORD32 i;
|
|
FLOAT32 temp;
|
|
const FLOAT32 *ptr_mask_low = &ptr_mask_low_factor[sfb_active - 2];
|
|
const FLOAT32 *ptr_mask_high = &ptr_mask_high_factor[1];
|
|
FLOAT32 temp_nrg = ptr_spreaded_energy[0];
|
|
FLOAT32 *ptr_spreaded_temp = ptr_spreaded_energy;
|
|
|
|
for (i = sfb_active - 2; i >= 0; i--) {
|
|
FLOAT32 temp_mask = *ptr_mask_high++;
|
|
temp = (temp_mask * temp_nrg);
|
|
temp_nrg = *++ptr_spreaded_temp;
|
|
if (temp_nrg < temp) {
|
|
*ptr_spreaded_temp = temp;
|
|
temp_nrg = temp;
|
|
}
|
|
}
|
|
|
|
temp_nrg = ptr_spreaded_energy[sfb_active - 1];
|
|
|
|
for (i = sfb_active - 2; i >= 0; i--) {
|
|
FLOAT32 temp_mask = *ptr_mask_low--;
|
|
temp = (temp_mask * temp_nrg);
|
|
temp_nrg = ptr_spreaded_energy[i];
|
|
if (temp_nrg < temp) {
|
|
ptr_spreaded_energy[i] = temp;
|
|
temp_nrg = temp;
|
|
}
|
|
}
|
|
}
|