Opencv 简单视频播放器

// C++ header and namespace
#include <iostream>
#include <string>
#include <cstdlib>
using namespace std;
// Opencv header and namespace
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/video/video.hpp>
using namespace cv;
bool JumpToFrame(false);
int main(int argc, char* argv[])
{
//!< Check out Input video
if (argc != 2)
{
cerr << "Usage: VideoPlayer.exe VideoFilename." << endl;
exit(1);
}
//!< Check out Open Video
VideoCapture capture(argv[1]);
if (!capture.isOpened())
{
return 1;
}
#pragma region InfoOfVideo
long NumberOfFrame = static_cast<long>(capture.get(CV_CAP_PROP_FRAME_COUNT));
double HeightOfFrame = capture.get(CV_CAP_PROP_FRAME_HEIGHT);
double WidthOfFrame = capture.get(CV_CAP_PROP_FRAME_WIDTH);
double FpsOfVideo = capture.get(CV_CAP_PROP_FPS);
cout << "The name of the input video is " << argv[1] << "." << endl;
cout << "NumberOfFrame : " << NumberOfFrame << endl;
cout << "HeightOfFrame : " << HeightOfFrame << endl;
cout << "WidthOfFrame : " << WidthOfFrame << endl;
cout << "FpsOfVieo : " << FpsOfVideo << endl;
#pragma endregion
// !< JumpToFrame function
while (JumpToFrame)
{
double Position = 0.0;
cout << "Please input the number of frame which you want jump to!" << endl;
cin >> Position;
capture.set(CV_CAP_PROP_POS_FRAMES, Position);
}
// !< Delay between each frame in ms corresponds to video frame rate(fps)
Mat frame;
bool stop(false);
int delay = 1000 / FpsOfVideo;
namedWindow("Extracted Frame");
while (!stop)
{
//read next frame if any
if (!capture.read(frame))
{
break;
}
imshow("Extracted Frame", frame);
//introduce a delay or press key to stop
if (waitKey(delay) >= 0)
{
stop = true;
}
}
// !< Close the video file.
// Not required since called by destructor
capture.release();
return 0;
}

巴特西

Opencv 简单视频播放器

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