/src/libxaac/encoder/ixheaace_basic_ops.c
Line | Count | Source |
1 | | /****************************************************************************** |
2 | | * * |
3 | | * Copyright (C) 2023 The Android Open Source Project |
4 | | * |
5 | | * Licensed under the Apache License, Version 2.0 (the "License"); |
6 | | * you may not use this file except in compliance with the License. |
7 | | * You may obtain a copy of the License at: |
8 | | * |
9 | | * http://www.apache.org/licenses/LICENSE-2.0 |
10 | | * |
11 | | * Unless required by applicable law or agreed to in writing, software |
12 | | * distributed under the License is distributed on an "AS IS" BASIS, |
13 | | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
14 | | * See the License for the specific language governing permissions and |
15 | | * limitations under the License. |
16 | | * |
17 | | ***************************************************************************** |
18 | | * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore |
19 | | */ |
20 | | |
21 | | #include <float.h> |
22 | | #include <math.h> |
23 | | #include "ixheaac_type_def.h" |
24 | | #include "ixheaac_constants.h" |
25 | | #include "ixheaace_aac_constants.h" |
26 | | #include "ixheaac_basic_ops32.h" |
27 | | #include "ixheaac_basic_ops16.h" |
28 | | #include "ixheaac_basic_ops40.h" |
29 | | #include "ixheaac_basic_ops.h" |
30 | | |
31 | 0 | WORD ia_enhaacplus_enc_norm32_arr(const WORD32 *word32_arr, LOOPINDEX n) { |
32 | 0 | WORD32 max_bits = 0; |
33 | 0 | for (; n != 0; n--) { |
34 | 0 | max_bits = max_bits | ixheaac_abs32_sat(*word32_arr++); |
35 | 0 | } |
36 | 0 | return (ixheaac_pnorm32(max_bits)); |
37 | 0 | } |
38 | | |
39 | 45.8M | FLOAT32 ixheaace_div32(FLOAT32 num, FLOAT32 den) { |
40 | 45.8M | if (fabs(den) < FLT_EPSILON) { |
41 | 7.07M | if (den < 0.0f) { |
42 | 0 | return -num; |
43 | 0 | } |
44 | 7.07M | else { |
45 | 7.07M | return num; |
46 | 7.07M | } |
47 | 7.07M | } |
48 | 38.7M | else { |
49 | 38.7M | return num / den; |
50 | 38.7M | } |
51 | 45.8M | } |
52 | | |
53 | 3.70k | FLOAT64 ixheaace_div64(FLOAT64 num, FLOAT64 den) { |
54 | 3.70k | if (fabs(den) < FLT_EPSILON) { |
55 | 404 | if (den < 0.0) { |
56 | 1 | return -num; |
57 | 1 | } |
58 | 403 | else { |
59 | 403 | return num; |
60 | 403 | } |
61 | 404 | } |
62 | 3.30k | else { |
63 | 3.30k | return num / den; |
64 | 3.30k | } |
65 | 3.70k | } |