int main()
{
VideoCapture capture("bike.avi");
if (!capture.isOpened()) return 1;
double rate = capture.get(CV_CAP_PROP_FPS);
bool stop(false);
Mat frame;
namedWindow("Extractor Frame");
int delay = 1000 / rate;
while (!stop)
{
//if (!capture.read(frame)) break;
capture >> frame;
imshow("Extractor Frame", frame);
//ÒýÈëÑÓ³Ù
if (waitKey(delay) >= 0) stop = true;
}
capture.release();
//test
VideoCapture capture1;
Mat frame1;
capture1.open("bike.avi");
namedWindow("test");
while (!stop)
{
capture1 >> frame1;
imshow("test", frame1);
if (waitKey(delay) >= 0) stop = true;
}
int n = capture1.get(CV_CAP_PROP_FRAME_COUNT);
cout << n << endl;
capture1.release();
//second test
VideoProcessor process;
process.setInput("bike.avi");
process.displayInput("Input Video");
process.displayOutput("Output Video");
// Play the video at the original frame rate
process.setDelay(1000. / process.getFrameRate());
// Set the frame processor callback function
process.setFrameprocessor(canny);
process.run();
waitKey();
// Second test
// Create instance
// VideoProcessor processor;
// Open video file
VideoProcessor1 processor;
processor.setInput("bike.avi");
// Get basic info about video file
cv::Size size = processor.getFrameSize();
std::cout << size.width << " " << size.height << std::endl;
std::cout << processor.getFrameRate() << std::endl;
std::cout << processor.getTotalFrameCount() << std::endl;
std::cout << processor.getFrameNumber() << std::endl;
std::cout << processor.getPositionMS() << std::endl;
// No processing
processor.dontCallProcess();
// Output filename
// processor.setOutput("../output/bikeOut",".jpg");
char codec[4];
processor.setOutput("bike2.avi", processor.getCodec(codec), processor.getFrameRate());
std::cout << "Codec: " << codec[0] << codec[1] << codec[2] << codec[3] << std::endl;
// Position the stream at frame 300
// processor.setFrameNumber(300);
// processor.stopAtFrameNo(120);
// Declare a window to display the video
processor.displayInput("Current Frame");
processor.displayOutput("Output Frame");
// Play the video at the original frame rate
processor.setDelay(1000. / processor.getFrameRate());
// Start the process
processor.run();
std::cout << processor.getFrameNumber() << std::endl;
std::cout << processor.getPositionMS() << std::endl;
cv::waitKey();
}
int main()
{
// Open the video file
cv::VideoCapture capture("../images/bike.avi");
// check if video successfully opened
if (!capture.isOpened())
return 1;
// Get the frame rate
double rate = capture.get(cv::CAP_PROP_FPS);
bool stop(false);
cv::Mat frame; // current video frame
cv::namedWindow("Extracted Frame");
// Delay between each frame
// corresponds to video frame rate
int delay = 1000 / rate;
// for all frames in video
while (!stop)
{
// read next frame if any
if (!capture.read(frame))
break;
cv::imshow("Extracted Frame", frame);
// introduce a delay
// or press key to stop
if (cv::waitKey(delay) >= 0)
stop = true;
}
// Close the video file
capture.release();
cv::waitKey();
// Now using the VideoProcessor class
// Create instance
VideoProcessor processor;
// Open video file
processor.setInput("../images/bike.avi");
// Declare a window to display the video
processor.displayInput("Input Video");
processor.displayOutput("Output Video");
// Play the video at the original frame rate
processor.setDelay(1000. / processor.getFrameRate());
// Set the frame processor callback function
processor.setFrameProcessor(canny);
// Start the process
processor.run();
cv::waitKey();
// Second test
// Create instance
// VideoProcessor processor;
// Open video file
processor.setInput("../images/bike.avi");
// Get basic info about video file
cv::Size size = processor.getFrameSize();
std::cout << size.width << " " << size.height << std::endl;
std::cout << processor.getFrameRate() << std::endl;
std::cout << processor.getTotalFrameCount() << std::endl;
std::cout << processor.getFrameNumber() << std::endl;
std::cout << processor.getPositionMS() << std::endl;
// No processing
processor.dontCallProcess();
// Output filename
// processor.setOutput("bikeOut",".jpg");
char codec[4];
processor.setOutput("bike.avi", processor.getCodec(codec), processor.getFrameRate());
std::cout << "Codec: " << codec[0] << codec[1] << codec[2] << codec[3] << std::endl;
// Position the stream at frame 300
// processor.setFrameNumber(300);
// processor.stopAtFrameNo(120);
// Declare a window to display the video
processor.displayInput("Current Frame");
processor.displayOutput("Output Frame");
// Play the video at the original frame rate
processor.setDelay(1000. / processor.getFrameRate());
// Start the process
processor.run();
std::cout << processor.getFrameNumber() << std::endl;
std::cout << processor.getPositionMS() << std::endl;
cv::waitKey();
}
int main()
{
// Open the video file
cv::VideoCapture capture("bike.avi");
// cv::VideoCapture capture("http://www.laganiere.name/bike.avi");
// check if video successfully opened
if (!capture.isOpened())
return 1;
// Get the frame rate
double rate= capture.get(CV_CAP_PROP_FPS);
std::cout << "Frame rate: " << rate << "fps" << std::endl;
bool stop(false);
cv::Mat frame; // current video frame
cv::namedWindow("Extracted Frame");
// Delay between each frame
// corresponds to video frame rate
int delay= 1000/rate;
long long i=0;
std::string b="bike";
std::string ext=".bmp";
// for all frames in video
while (!stop) {
// read next frame if any
if (!capture.read(frame))
break;
cv::imshow("Extra cted Frame",frame);
std::string name(b);
// note: some MinGW compilers generate an error for this line
// this is a compiler bug
// try: std::ostringstream ss; ss << i; name+= ss.rdbuf(); i++;
// name+=std::to_string(i++);
std::ostringstream ss; ss << i; name+= ss.str(); i++;
name+=ext;
std::cout << name <<std::endl;
cv::imwrite(name,frame);
// introduce a delay
// or press key to stop
if (cv::waitKey(delay)>=0)
stop= true;
}
// Close the video file
capture.release();
cv::waitKey();
// Now using the VideoProcessor class
// Create instance
VideoProcessor processor;
// Open video file
processor.setInput("bike.avi");
// Declare a window to display the video
processor.displayInput("Input Video");
processor.displayOutput("Output Video");
// Play the video at the original frame rate
processor.setDelay(1000./processor.getFrameRate());
// Set the frame processor callback function
processor.setFrameProcessor(canny);
// output a video
processor.setOutput("bikeCanny.avi",-1,15);
// stop the process at this frame
processor.stopAtFrameNo(51);
// Start the process
processor.run();
cv::waitKey();
return 0;
}