Issue in JPG to Mpg conversion

[GoogleCodeExporter]

I m nt familiar to this library and trying to convert some jpg images into mpg 
file through CvVideoWriter 
i m using this code bt getting exception 

IplImage img1 = cvLoadImage("Power.jpg", CV_LOAD_IMAGE_UNCHANGED);
IplImage img2 = cvLoadImage("Power.jpg", CV_LOAD_IMAGE_UNCHANGED);

double fps = 20;

CvVideoWriter writer = cvCreateVideoWriter("out.mpg", 
CV_FOURCC('P','I','M','1'), fps,cvGetSize(img1), 20);

        if (writer!=null)
        {
        Log.e("VideoWriter failed","");
        }
cvWriteFrame(writer, img1);
cvWriteFrame(writer, img2);
cvReleaseVideoWriter(writer);
cvReleaseImage(img1);
cvReleaseImage(img2);

getting Run time exception ...

java.lang.RuntimeException: 
/home/saudet/workspace/android/OpenCV-2.3.0/modules/core/src/array.cpp:1238: 
error: (-5) Array should be CvMat or IplImage in function CvSize 
cvGetSize(const CvArr*)

Original issue reported on code.google.com by arslan.o...@gmail.com on 28 Jul 2011 at 7:12