libxaac/encoder/ixheaace_basic_ops.c
Akshay Ragir f247fa376e Fix for the Divide-by-zero in impd_drc_td_drc_gain_calc_init
These changes handle the divide-by-zero runtime error
reported when the successive drc gain coordinates
have same x coordinates.

Bug: ossFuzz:62237
Test: poc in bug
2023-10-03 19:14:29 +05:30

65 lines
1.8 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 <float.h>
#include <math.h>
#include "ixheaac_type_def.h"
#include "ixheaac_constants.h"
#include "ixheaace_aac_constants.h"
#include "ixheaac_basic_ops32.h"
#include "ixheaac_basic_ops16.h"
#include "ixheaac_basic_ops40.h"
#include "ixheaac_basic_ops.h"
WORD ia_enhaacplus_enc_norm32_arr(const WORD32 *word32_arr, LOOPINDEX n) {
WORD32 max_bits = 0;
for (; n != 0; n--) {
max_bits = max_bits | ixheaac_abs32_sat(*word32_arr++);
}
return (ixheaac_pnorm32(max_bits));
}
FLOAT32 ixheaace_div32(FLOAT32 num, FLOAT32 den) {
if (fabs(den) < FLT_EPSILON) {
if (den < 0.0f) {
return -num;
}
else {
return num;
}
}
else {
return num / den;
}
}
FLOAT64 ixheaace_div64(FLOAT64 num, FLOAT64 den) {
if (fabs(den) < FLT_EPSILON) {
if (den < 0.0) {
return -num;
}
else {
return num;
}
}
else {
return num / den;
}
}