opencv3接收rtsp网络视频流

项目需要，最近在研究网络摄像头视频流的接收。之前用的vlc，操作简单，接收效果特别好，略有延迟，而且vlc是开源的！！！如果代码能力有点强悍，可以自己改写。

可是呢，可是呢，这又会是个比较大的工程对不对，懒人有懒人的办法，利用opencv自带函数接收rtsp视频流的功能，opencv2和opencv3代码都在这里，以下：

Opencv2：

#include "opencv2/opencv.hpp"

#include"opencv2/core/core.hpp"

#include<opencv2/video/video.hpp>

#include"opencv2/highgui/highgui.hpp"

#include<fstream>

#include<iostream>

//作者的opencv版本3.0,所以代码是2.x版本，包含的包是3.0的包

using namespace cv;

using namespace std;

int main(int argc, char **argv){

  IplImage *pFrame = NULL, *srcImage=NULL;

  CvCapture *pCapture = NULL;

  pCapture =cvCreateFileCapture("rtsp://0.0.0.1/stream1");//your own rtsp address

if(!pCapture){

  printf("Can not get the videostream from the camera!\n");

  return NULL;

 }

doublerate=cvGetCaptureProperty(pCapture,CV_CAP_PROP_FPS);

CvSize size=cvSize((int)cvGetCaptureProperty(pCapture,CV_CAP_PROP_FRAME_WIDTH),(int)cvGetCaptureProperty(pCapture,CV_CAP_PROP_FRAME_HEIGHT));

CvVideoWriter*writer=cvCreateVideoWriter("videotest.avi",CV_FOURCC('M','J','P','G'),rate,size);

while(1){

   pFrame = cvQueryFrame(pCapture);

   srcImage=cvCloneImage(pFrame);

 

   cvWriteFrame(writer,srcImage);

   cvShowImage("123234",srcImage);

   //cout<<pFrame->width<<","<<pFrame->height<<endl;

   cvWaitKey(30);

   cvReleaseImage(&srcImage);

   srcImage=NULL;

 }

  cvReleaseCapture(&pCapture);

  cvReleaseImage(&pFrame);

 return 0;

}

Opencv3:

#include "stdafx.h"

#include <opencv2/opencv.hpp>

#include <iostream>

using namespace std;

using namespace cv;

int main()

{

        VideoCapturecap;

         cap.open("rtsp://0.0.0.1/stream1");//呵呵，就这一句关键

        MatCamera_CImg;

        MatCamera_GImg;

        cap.set(CV_CAP_PROP_FRAME_HEIGHT,768);

        cap.set(CV_CAP_PROP_FRAME_WIDTH,1024);

        if (!cap.isOpened())

        return 1024;

       

        while (1)

        {

                  cap>> Camera_CImg;

                  if(Camera_CImg.empty())

                  break;

                  cvtColor(Camera_CImg,Camera_GImg, CV_RGB2GRAY);

                  imshow("input", Camera_CImg);

                  if (cvWaitKey(10) == 'q')

                  break;

        }

        system("pause");

return 0;

}