EasyDarwin開源雲平臺接入海康威視EasyCamera攝像機之快照獲取與上傳

時間 2019-11-17

標籤 easydarwin 開源平臺海康威視 easycamera 攝像機快照獲取上傳简体版

原文原文鏈接

本文轉自EasyDarwin團隊成員Alex的博客：http://blog.csdn.net/cai6811376git

EasyCamera開源攝像機擁有獲取攝像機實時快照並上傳至EasyDarwin雲平臺的功能，那麼咱們如何使用海康的攝像機SDK獲取實時快照呢？github

咱們看海康SDK的說明文檔中有markdown

咱們使用這個接口進行快照獲取ui

//EasyCamera-HK EasyCameraSource.cpp
bool EasyCameraSource::getSnapData(unsigned char* pBuf, UInt32 uBufLen, int* uSnapLen)
{
    //若是攝像機未登陸，返回false
    if (!cameraLogin()) return false;

    //調用SDK獲取數據
    LPNET_DVR_JPEGPARA jpegPara = new NET_DVR_JPEGPARA;
    jpegPara->wPicQuality = 0;
    jpegPara->wPicSize = 9;

    LPDWORD Ret = 0;

    NET_DVR_SetCapturePictureMode(JPEG_MODE);
    /*{ cout << "Set Capture Picture Mode error!" << endl; cout << "The error code is " << NET_DVR_GetLastError() << endl; }*/

    bool capture = NET_DVR_CaptureJPEGPicture_NEW(m_u32Handle, 1, jpegPara, (char*)pBuf, uBufLen, (LPDWORD)uSnapLen);
    if (!capture)
    {
        printf("Error: NET_DVR_CaptureJPEGPicture_NEW = %d", NET_DVR_GetLastError());
        delete jpegPara;
        return false;
    }

    delete jpegPara;
    return true;
}