通过视频文件模拟摄像头进行图像分析

预防始终读取第一帧图像。
Integer res = 0;

String rtsp = "";
rtsp = webcamBean.getRstp();
if (rtsp.contains(":\\")) {
    SimpleDateFormat sdf1 = new SimpleDateFormat("yyyy-MM-dd");//设置日期格式
    Date curDate = new Date();
    String sCurDate = sdf1.format(curDate);
    //判断是否抓拍分析过
    if (snapshotBeanList.size() > 0)
        continue;
}


VideoCapture cap = new VideoCapture(rtsp);
try {
    Mat image = new Mat();

    int spaceFramesCount = 0;
    int iFrequency = Integer.parseInt(eventMonitorStrategyBean.getFrequency());
    int frate = (int) cap.get(5);
    int frame_frequency = iFrequency * frate;

    int times = 0;
    while (cap.isOpened()) {
        boolean flag;
        flag = cap.read(image);

        if (rtsp.contains(":\\")) {
            times++;
            if (times % frame_frequency != 0)
                continue;
            //跳过总帧数跳出
            if (times > cap.get(7))
                break;
        }


        if (!rtsp.contains(":\\"))
            break;

    }


    image.release();
    cap.release();


} catch (Exception ee) {
   
    cap.release();
}