Play Video From Camera

In this opencv program we will extract frames (images from the video file or camera and show it in a continuous loop.

https://www.snaptubeapp.com/
capture the sound from a video  file or  a microphone.


//Uncomment the following line if you are compiling this code in Visual Studio
#include "stdafx.h"

#include <opencv2/opencv.hpp>
#include <iostream>

using namespace cv;
using namespace std;

int main(int argc, char* argv[])
{
//open the video file for readings
VideoCapture cap("C:/Users/GitHub/ /Sample1/HellowWorldAPP/ /Archive/01Video_PlayVideoFromCamera/20151105150422.mp4");

// if not success, exit program
if (cap.isOpened() == false)
{
cout << "Cannot open the video file" << endl;
cin.get(); //wait for any key press
return -1;
}

//Uncomment the following line if you want to start the video in the middle
//cap.set(CAP_PROP_POS_MSEC, 300);

//get the frames rate of the video
double fps = cap.get(CAP_PROP_FPS);
cout << "Frames per seconds : " << fps << endl;

String window_name = "My First Video";

namedWindow(window_name, WINDOW_NORMAL); //create a window

while (true)
{
Mat frame;
bool bSuccess = cap.read(frame); // read a new frame from video

//Breaking the while loop at the end of the video
if (bSuccess == false)
{
cout << "Found the end of the video" << endl;
break;
}

//show the frame in the created window
imshow(window_name, frame);

//wait for for 10 ms until any key is pressed.
//If the 'Esc' key is pressed, break the while loop.
//If the any other key is pressed, continue the loop
//If any key is not pressed withing 10 ms, continue the loop
if (waitKey(10) == 27)
{
cout << "Esc key is pressed by user. Stoppig the video" << endl;
break;
}
}

return 0;

}



 VideoCapture class. This constructor will open the video file and initialize the VideoCapture object for reading the video stream from the specified file.


MERGE

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