1 /*
2 * Copyright (c) 2022 HiSilicon (Shanghai) Technologies CO., LIMITED.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <stdlib.h>
17 #include <string.h>
18 #include <stdio.h>
19 #include <stdbool.h>
20
21 #include "sample_media_ai.h"
22 #include "ai_infer_process.h"
23
24 #ifdef __cplusplus
25 #if __cplusplus
26 extern "C" {
27 #endif
28 #endif /* End of #ifdef __cplusplus */
29
30 /*
31 * 将整数放大到给定的倍数范围
32 * Amplify the integer to the given multiple range
33 */
IntZoomTo(int n,double rate,double rateMin,double rateMax)34 int IntZoomTo(int n, double rate, double rateMin, double rateMax)
35 {
36 HI_ASSERT(rateMin < 1 && rateMax > 1);
37 int ret;
38
39 if (!rateMin) {
40 HI_ASSERT(rateMin);
41 return n;
42 } else {
43 if (rate > rateMax) {
44 ret = n * (int)rateMax;
45 } else if (rate < rateMin) {
46 ret = n / (int)(1 / rateMin);
47 } else {
48 ret = (int)(n * rate);
49 }
50 return ret < 1 ? 1 : ret;
51 }
52 }
53
54 /*
55 * 按比例转换坐标
56 * Convert coordinates proportionally
57 */
RectBoxTran(RectBox * box,int srcWidth,int srcHeight,int dstWidth,int dstHeight)58 void RectBoxTran(RectBox* box, int srcWidth, int srcHeight, int dstWidth, int dstHeight)
59 {
60 if (!srcWidth || !srcHeight) {
61 HI_ASSERT(srcWidth && srcHeight);
62 } else {
63 if (srcWidth != 0 && srcHeight != 0) {
64 box->xmin = box->xmin * dstWidth / srcWidth * HI_OVEN_BASE / HI_OVEN_BASE;
65 box->xmax = box->xmax * dstWidth / srcWidth * HI_OVEN_BASE / HI_OVEN_BASE;
66 box->ymin = box->ymin * dstHeight / srcHeight * HI_OVEN_BASE / HI_OVEN_BASE;
67 box->ymax = box->ymax * dstHeight / srcHeight * HI_OVEN_BASE / HI_OVEN_BASE;
68 }
69 }
70 }
71
72 #ifdef __cplusplus
73 #if __cplusplus
74 }
75 #endif
76 #endif /* End of #ifdef __cplusplus */
77