Image is distorted when converting from OpenCVFrameConverter.ToOrgOpenCvCoreMat using a mp4 video #1460
Description
Im trying to converting Frame from to Mat but the image is distorted. below is the link of the video and code.
`package com.mi6.surf;
import org.bytedeco.ffmpeg.global.avutil;
import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.Frame;
import org.bytedeco.javacv.FrameGrabber.Exception;
import org.bytedeco.javacv.OpenCVFrameConverter;
import org.opencv.core.Mat;
public class Grabber {
private FFmpegFrameGrabber grabber;
private final OpenCVFrameConverter.ToOrgOpenCvCoreMat converter;
public Grabber() {
avutil.av_log_set_level(avutil.AV_LOG_QUIET);
converter = new OpenCVFrameConverter.ToOrgOpenCvCoreMat();
}
public void setVideo(String videoFilename) throws Exception {
System.out.println("Setting Video in Grabber. ");
grabber = new FFmpegFrameGrabber(videoFilename);
System.out.println("Starting Grabber. ");
grabber.start();
}
public long getTotalTime() {
return grabber.getLengthInTime();
}
public Mat getFrameAt(long timestamp) throws Exception {
System.out.println("Getting Frame at "+ timestamp);
grabber.setTimestamp(timestamp);
Frame frame = grabber.grabImage();
if(frame==null || frame.imageWidth ==0 || frame.imageHeight==0)
throw new Exception("Cannot Extract Frame at timestamp: "+ timestamp);
return converter.convert(frame);
}
public void stopGrabber() throws Exception {
System.out.println("Stopping Grabber. ");
grabber.stop();
}
}
`package com.mi6.opencv;
import org.bytedeco.javacpp.Loader;
import org.bytedeco.javacv.FrameGrabber.Exception;
import org.bytedeco.opencv.opencv_java;
import org.opencv.core.Mat;
import org.opencv.highgui.HighGui;
import com.mi6.surf.Grabber;
/**
- Hello world!
*/
public class Test2 {
public static void main(String[] args) throws Exception {
Loader.load(opencv_java.class);
String videoFilename = "C:\\Users\\Mi6\\Desktop\\Jobs 2013.mp4";
long timestamp = (long) ((2) * 1000_000); //2 sec
Grabber grabber = new Grabber();
grabber.setVideo(videoFilename);
Mat objectImage = grabber.getFrameAt(timestamp).clone();
HighGui.imshow("Object Image", objectImage);
HighGui.waitKey(0);
}
}
[Distorted Image](https://1drv.ms/u/s!As2o7s_R_SwDghtwCI07dH87epJI?e=H8tMQG)
Video Link