CODEWITHSUNDEEP
javaopencvnetbeans
kanchan shegar
kanchan shegar

Reputation: 75

OpenCV: VideoCapture::get(CV_CAP_PROP_FPS) returns 0 FPS direct video input without using camera in java

 VideoWriter videoWriter = new VideoWriter(outputFile, fourCC.toInt(), videoCapture.get(Videoio.CAP_PROP_FPS),
                    frameSize, true);

this return framesize as 0

Upvotes: 0

Views: 1639

Answers (1)

Bahramdun Adil
Bahramdun Adil

Reputation: 6079

Solution At first you try to open the video and check if opened successfully as below:

VideoCapture capture = new VideoCapture(filePath);
if(!capture.isOpened()) {
    System.out.println("Cannot open the video.");
    return;
}

If it not returned, then it opened successfully, now you read the frame and display or at least check the height and width of the frame as below:

Mat frame = new Frame();
capture.read(frame);
int width = (int) capture.get(Videoio.CAP_PROP_FRAME_WIDTH);
int height = (int) capture.get(Videoio.CAP_PROP_FRAME_HEIGHT);
System.out.println("width = " + width );
System.out.println("height = " + height);

If everything goes well then, it is OK, you can use capture and read the frames, if not working, go to your OpenCV extracted folder and copy this line

C:\opencv\build\x64\vc14\bin

to your Environment Variable and restart the your PC and try again.

Upvotes: 1

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