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error write avi file

Hello there, i got started recently in opencv and i'm having the following error when i try run a code that convert the video to a grayscale:

OpenCV Error: Unsupported format or combination of formats (Gstreamer Opencv backend doesn't support this codec acutally.) in CvVideoWriter_GStreamer::open, file /home/daniel/Downloads/OpenCV-2.4.2/modules/highgui/src/cap_gstreamer.cpp, line 479 terminate called after throwing an instance of 'cv::Exception' what(): /home/daniel/Downloads/OpenCV-2.4.2/modules/highgui/src/cap_gstreamer.cpp:479: error: (-210) Gstreamer Opencv backend doesn't support this codec acutally. in function CvVideoWriter_GStreamer::open

the code is:

// argv[1]: input video file // argv[2]: name of new output file //

include "cv.h"

include "highgui.h"

int main( int argc, char* argv[] ) { CvCapture* capture = 0; capture = cvCreateFileCapture( argv[1] ); if(!capture) { return -1; } IplImage *bgr_frame=cvQueryFrame(capture);//Init the video read double fps = cvGetCaptureProperty ( capture, CV_CAP_PROP_FPS );

CvSize size = cvSize(
(int)cvGetCaptureProperty( capture, CV_CAP_PROP_FRAME_WIDTH),
(int)cvGetCaptureProperty( capture, CV_CAP_PROP_FRAME_HEIGHT)
);
CvVideoWriter *writer = cvCreateVideoWriter("window",
CV_FOURCC('M','J','P','G'),
fps,
size
);
IplImage* logpolar_frame = cvCreateImage(
size,
IPL_DEPTH_8U,
3
);
while( (bgr_frame=cvQueryFrame(capture)) != NULL ) {
cvLogPolar( bgr_frame, logpolar_frame,
cvPoint2D32f(bgr_frame->width/2,
bgr_frame->height/2),
40,
CV_INTER_LINEAR+CV_WARP_FILL_OUTLIERS );
cvWriteFrame( writer, logpolar_frame );
}
cvReleaseVideoWriter( &writer );
cvReleaseImage( &logpolar_frame );
cvReleaseCapture( &capture );
return(0);

}

error write avi file

Hello there, i got started recently in opencv and i'm having the following error when i try run a code that convert the video to a grayscale:

the code is:

// argv[1]: input video file // argv[2]: name of new output file // include "cv.h" include "highgui.h" // #include "cv.h" #include "highgui.h" int main( int argc, char* argv[] ) { CvCapture* capture = 0; capture = cvCreateFileCapture( argv[1] ); if(!capture) { return -1; } IplImage *bgr_frame=cvQueryFrame(capture);//Init the video read double fps = cvGetCaptureProperty ( capture, CV_CAP_PROP_FPS ); ); CvSize size = cvSize( (int)cvGetCaptureProperty( capture, CV_CAP_PROP_FRAME_WIDTH), (int)cvGetCaptureProperty( capture, CV_CAP_PROP_FRAME_HEIGHT) ); ); CvVideoWriter *writer = cvCreateVideoWriter("window", CV_FOURCC('M','J','P','G'), fps, size ); ); IplImage* logpolar_frame = cvCreateImage( size, IPL_DEPTH_8U, 3 ); ); while( (bgr_frame=cvQueryFrame(capture)) != NULL ) { cvLogPolar( bgr_frame, logpolar_frame, cvPoint2D32f(bgr_frame->width/2, bgr_frame->height/2), 40, CV_INTER_LINEAR+CV_WARP_FILL_OUTLIERS ); cvWriteFrame( writer, logpolar_frame ); } cvReleaseVideoWriter( &writer ); cvReleaseImage( &logpolar_frame ); cvReleaseCapture( &capture ); return(0); } }

          3    retagged 
      updated 
        2012-08-06 03:41:45 -0600
     
    sammy 
 3029  ●14 ●29 ●48  
 
 
 
  
 
 
 
  error write avi file
 Hello there, i got started recently in opencv and i'm having the following error when i try run a code that convert the video to a grayscale:
 OpenCV Error: Unsupported format or combination of formats (Gstreamer Opencv backend doesn't support this codec acutally.) in CvVideoWriter_GStreamer::open, file /home/daniel/Downloads/OpenCV-2.4.2/modules/highgui/src/cap_gstreamer.cpp, line 479
terminate called after throwing an instance of 'cv::Exception'
  what():  /home/daniel/Downloads/OpenCV-2.4.2/modules/highgui/src/cap_gstreamer.cpp:479: error: (-210) Gstreamer Opencv backend doesn't support this codec acutally. in function CvVideoWriter_GStreamer::open
 the code is:
 
 // argv[1]: input video file
// argv[2]: name of new output file
//
#include "cv.h"
#include "highgui.h"
int main( int argc, char* argv[] )
{
    CvCapture* capture = 0;
    capture = cvCreateFileCapture( argv[1] );
    if(!capture)
    {
        return -1;
    }
    IplImage *bgr_frame=cvQueryFrame(capture);//Init the video read
    double fps = cvGetCaptureProperty (
    capture,
    CV_CAP_PROP_FPS
    );

    CvSize size = cvSize(
    (int)cvGetCaptureProperty( capture, CV_CAP_PROP_FRAME_WIDTH),
    (int)cvGetCaptureProperty( capture, CV_CAP_PROP_FRAME_HEIGHT)
    );
    CvVideoWriter *writer = cvCreateVideoWriter("window",
    CV_FOURCC('M','J','P','G'),
    fps,
    size
    );
    IplImage* logpolar_frame = cvCreateImage(
    size,
    IPL_DEPTH_8U,
    3
    );
    while( (bgr_frame=cvQueryFrame(capture)) != NULL ) {
    cvLogPolar( bgr_frame, logpolar_frame,
    cvPoint2D32f(bgr_frame->width/2,
    bgr_frame->height/2),
    40,
    CV_INTER_LINEAR+CV_WARP_FILL_OUTLIERS );
    cvWriteFrame( writer, logpolar_frame );
    }
    cvReleaseVideoWriter( &writer );
    cvReleaseImage( &logpolar_frame );
    cvReleaseCapture( &capture );
    return(0);
}