I have written program in c++ and also in Java using OpenCV and JavaCV but i am facing problem in order to grab image from H.264 IP Camera. my written program in C++ and Java are following:-
1)in C++ language written :-
include <iostream>
include "cv.h"
include "highgui.h"
include "cvaux.h"
using namespace std;
int main() {
CvCapture* capture = cvCaptureFromFile("rtsp://192.168.112.54:554/H264");
cout<<" i am going to capture image "<<endl;
while ( 1 ) {
// Get one frame
IplImage* frame = cvQueryFrame( capture );
cout<<"i captured a frame "<<endl;
if ( !frame ) {
fprintf( stderr, "ERROR: frame is null...\n" );
getchar();
break;
}
cvNamedWindow( "mywindow", CV_WINDOW_AUTOSIZE );
cvShowImage( "mywindow", frame );
if ( (cvWaitKey(10) & 255) == 27 ) break;
} // Release the capture device housekeeping cvReleaseCapture( &capture ); cvDestroyWindow( "mywindow" ); cout << "Hello world!" << endl; return 0;
}
2.) in Java language written
import name.audet.samuel.javacv.OpenCVFrameRecorder; import com.sun.jna.; import name.audet.samuel.javacv.jna.; import name.audet.samuel.javacv.FrameGrabber; import name.audet.samuel.javacv.OpenCVFrameGrabber; import static name.audet.samuel.javacv.jna.cv.v21.; import static name.audet.samuel.javacv.jna.cvaux.v21.; import static name.audet.samuel.javacv.jna.cxcore.v21.; import static name.audet.samuel.javacv.jna.highgui.; public class Recording {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws Exception {
// TODO code application logic here
// IplImage inputimage = null;
OpenCVFrameGrabber grabber = new OpenCVFrameGrabber("rtsp://192.168.112.54:554/H264");
System.out.println("connection has been established");
grabber.start();
System.out.println("i am going to start");
int key=0;
IplImage inputimage = grabber.grab();
System.out.println("now i am going to grab images");
int width = inputimage.width;
int height = inputimage.height;
cvShowImage("recording1",inputimage);
cvWaitKey(0);
OpenCVFrameRecorder recorder = new OpenCVFrameRecorder("output.avi",width,height);
//recorder.setFrameRate(15.0);
recorder.start();
while(true){
IplImage inputimage1 = grabber.grab();
cvShowImage("recording",inputimage1);
cvWaitKey(2);
recorder.record(inputimage);
key=cvWaitKey(5);
if(key==32){
grabber.stop();
grabber.release();
recorder.stop();
recorder.release();
cvReleaseImage(inputimage.pointerByReference()) ;
//cvReleaseImage(inputimage1.pointerByReference()) ;
break;
}
}
}
}
in both cases i am facing same problem and that problem is :-
A fatal error has been detected by the Java Runtime Environment:
#
EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x583c088d, pid=3448, tid=6096
#
JRE version: 7.0
Java VM: Java HotSpot(TM) Client VM (20.0-b01 mixed mode, sharing windows-x86 )
Problematic frame:
C [opencv_ffmpeg210.dll+0x10088d]
#
An error report file with more information is saved as:
C:\Users\anitha\Documents\NetBeansProjects7.0\recording\hs_err_pid3448.log
#
If you would like to submit a bug report, please visit:
http://java.sun.com/webapps/bugreport/crash.jsp
The crash happened outside the Java Virtual Machine in native code.
See problematic frame for where to report the bug.
# [NULL @ 0x4e3a500]non-existing PPS referenced Compiler did not align stack variables. Libavcodec has been miscompiled and may be very slow or crash. This is not a bug in libavcodec, but in the compiler. You may try recompiling using gcc >= 4.2. Do not report crashes to FFmpeg developers. [h264 @ 0x4e3a500]number of reference frames exceeds max (probably corrupt input), discarding one Java Result: 1 BUILD SUCCESSFUL (total time: 2 seconds)
