SetIO.cpp

设置相机IO

该示例程序说明了在打开设备后如何设置和获取设备IO状态。

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <pthread.h>
#include "MvCameraControl.h"

// 等待用户输入enter键来结束取流或结束程序
// wait for user to input enter to stop grabbing or end the sample program
void PressEnterToExit(void)
{
    int c;
    while ( (c = getchar()) != '\n' && c != EOF );
    fprintf( stderr, "\nPress enter to exit.\n");
    while( getchar() != '\n');
}

bool PrintDeviceInfo(MV_CC_DEVICE_INFO* pstMVDevInfo)
{
    if (NULL == pstMVDevInfo)
    {
        printf("The Pointer of pstMVDevInfo is NULL!\n");
        return false;
    }
    if (pstMVDevInfo->nTLayerType == MV_GIGE_DEVICE)
    {
        int nIp1 = ((pstMVDevInfo->SpecialInfo.stGigEInfo.nCurrentIp & 0xff000000) >> 24);
        int nIp2 = ((pstMVDevInfo->SpecialInfo.stGigEInfo.nCurrentIp & 0x00ff0000) >> 16);
        int nIp3 = ((pstMVDevInfo->SpecialInfo.stGigEInfo.nCurrentIp & 0x0000ff00) >> 8);
        int nIp4 = (pstMVDevInfo->SpecialInfo.stGigEInfo.nCurrentIp & 0x000000ff);

        // ch:打印当前相机ip和用户自定义名字 | en:print current ip and user defined name
        printf("Device Model Name: %s\n", pstMVDevInfo->SpecialInfo.stGigEInfo.chModelName);
        printf("CurrentIp: %d.%d.%d.%d\n" , nIp1, nIp2, nIp3, nIp4);
        printf("UserDefinedName: %s\n\n" , pstMVDevInfo->SpecialInfo.stGigEInfo.chUserDefinedName);
    }
    else if (pstMVDevInfo->nTLayerType == MV_USB_DEVICE)
    {
        printf("Device Model Name: %s\n", pstMVDevInfo->SpecialInfo.stUsb3VInfo.chModelName);
        printf("UserDefinedName: %s\n\n", pstMVDevInfo->SpecialInfo.stUsb3VInfo.chUserDefinedName);
    }
    else
    {
        printf("Not support.\n");
    }

    return true;
}

int main()
{
    int nRet = MV_OK;

    void* handle = NULL;
    do 
    {
        MV_CC_DEVICE_INFO_LIST stDeviceList;
        memset(&stDeviceList, 0, sizeof(MV_CC_DEVICE_INFO_LIST));

        // 枚举设备
        // enum device
        nRet = MV_CC_EnumDevices(MV_GIGE_DEVICE | MV_USB_DEVICE, &stDeviceList);
        if (MV_OK != nRet)
        {
            printf("MV_CC_EnumDevices fail! nRet [%x]\n", nRet);
            break;
        }
        if (stDeviceList.nDeviceNum > 0)
        {
            for (int i = 0; i < stDeviceList.nDeviceNum; i++)
            {
                printf("[device %d]:\n", i);
                MV_CC_DEVICE_INFO* pDeviceInfo = stDeviceList.pDeviceInfo[i];
                if (NULL == pDeviceInfo)
                {
                    break;
                } 
                PrintDeviceInfo(pDeviceInfo);            
            }  
        } 
        else
        {
            printf("Find No Devices!\n");
            break;
        }

        printf("Please Intput camera index: ");
        unsigned int nIndex = 0;
        scanf("%d", &nIndex);

        if (nIndex >= stDeviceList.nDeviceNum)
        {
            printf("Intput error!\n");
            break;
        }

        // 选择设备并创建句柄
        // select device and create handle
        nRet = MV_CC_CreateHandle(&handle, stDeviceList.pDeviceInfo[nIndex]);
        if (MV_OK != nRet)
        {
            printf("MV_CC_CreateHandle fail! nRet [%x]\n", nRet);
            break;
        }

        // 打开设备
        // open device
        nRet = MV_CC_OpenDevice(handle);
        if (MV_OK != nRet)
        {
            printf("MV_CC_OpenDevice fail! nRet [%x]\n", nRet);
            break;
        }

        // 获取LineSelector
        // get LineSelector
        MVCC_ENUMVALUE stLineSelector = {0};
        nRet = MV_CC_GetEnumValue(handle, "LineSelector", &stLineSelector);
        if (MV_OK == nRet)
        {
            printf("stLineSelector current value:%d\n", stLineSelector.nCurValue);

            printf("supported stLineSelector number:%d\n", stLineSelector.nSupportedNum);

            for (unsigned int i = 0; i < stLineSelector.nSupportedNum; ++i)
            {
                printf("supported stLineSelector [%d]:%d\n", i, stLineSelector.nSupportValue[i]);
            }
            printf("\n");
        }
        else
        {
            printf("get stLineSelector failed! nRet [%x]\n\n", nRet);
        }

        // 设置LineSelector
        // set LineSelector
        unsigned int nLineSelector = 0;
        printf("please input the LineSelector to set: ");
        scanf("%d", &nLineSelector);

        nRet = MV_CC_SetEnumValue(handle, "LineSelector", nLineSelector);
        if (MV_OK == nRet)
        {
            printf("set LineSelector OK!\n\n");
        }
        else
        {
            printf("set LineSelector failed! nRet [%x]\n\n", nRet);
        }

        // 获取LineMode
        // get LineMode
        MVCC_ENUMVALUE stLineMode = {0};
        nRet = MV_CC_GetEnumValue(handle, "LineMode", &stLineMode);
        if (MV_OK == nRet)
        {
            printf("stLineMode current value:%d\n", stLineMode.nCurValue);

            printf("supported stLineSelector number:%d\n", stLineMode.nSupportedNum);

            for (unsigned int i = 0; i < stLineMode.nSupportedNum; ++i)
            {
                printf("supported stLineSelector [%d]:%d\n", i, stLineMode.nSupportValue[i]);
            }
            printf("\n");
        }
        else
        {
            printf("get stLineMode failed! nRet [%x]\n\n", nRet);
        }

        // 设置LineMode
        // set LineMode
        unsigned int nLineMode = 0;
        printf("please input the LineMode to set:");
        scanf("%d", &nLineMode);

        nRet = MV_CC_SetEnumValue(handle, "LineMode", nLineMode);
        if (MV_OK == nRet)
        {
            printf("set LineMode OK!\n\n");
        }
        else
        {
            printf("set LineMode failed! nRet [%x]\n\n", nRet);
        }

        // 关闭设备
        // close device
        nRet = MV_CC_CloseDevice(handle);
        if (MV_OK != nRet)
        {
            printf("MV_CC_CloseDevice fail! nRet [%x]\n", nRet);
            break;
        }

        // 销毁句柄
        // destroy handle
        nRet = MV_CC_DestroyHandle(handle);
        if (MV_OK != nRet)
        {
            printf("MV_CC_DestroyHandle fail! nRet [%x]\n", nRet);
            break;
        }
    } while (0);

    if (nRet != MV_OK)
    {
        if (handle != NULL)
        {
            MV_CC_DestroyHandle(handle);
            handle = NULL;
        }
    }

    printf("exit\n");
    return 0;
}