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 /*
17 * 该文件为helloworld主函数文件，打通了从视频输入->视频处理子系统->视频输出->显示屏整个媒体通路，
18 * ./可执行文件即可运行helloworld媒体通路。运行成功即可在mipi屏上查看实时视频流。
19 *
20 * This file is the main function file of helloworld, which opens up the entire media channel from
21 * VI->VPSS->VO->MIPI，./Executable file can run the helloworld media channel.
22 * After running successfully, you can view the real-time video stream on the mipi screen.
23 */
24
25 #include "mpi_sys.h"
26 #include "sample_lcd.h"
27 #include "sdk.h"
28
29 #ifdef __cplusplus
30 #if __cplusplus
31 extern "C" {
32 #endif
33 #endif /* End of #ifdef __cplusplus */
34
35 /*
36 * 函数 : main()
37 * function: main()
38 */
main(void)39 int main(void)
40 {
41 HI_S32 s32Ret;
42 sdk_init();
43 /*
44 * MIPI为GPIO55，开启液晶屏背光
45 * MIPI is GPIO55, Turn on the backlight of the LCD screen
46 */
47 system("cd /sys/class/gpio/;echo 55 > export;echo out > gpio55/direction;echo 1 > gpio55/value");
48 s32Ret = SampleVioVpssVoMipi();
49 sdk_exit();
50 SAMPLE_PRT("\nsdk exit success\n");
51 return s32Ret;
52 }
53
54 #ifdef __cplusplus
55 #if __cplusplus
56 }
57 #endif
58 #endif /* End of #ifdef __cplusplus */