please help me warning: Error opening file (/home/vaibhav/opencv/modules/highgui/src/cap_ffmpeg_impl.hpp:553)

edit

i am using opencv to display a video my code is as #include<opencv2 highgui="" highgui_c.h=""> #include <cv.h> #include <opencv cv.hpp=""> #include <opencv2 opencv.hpp=""> #include <cvaux.h> #include <cxcore.h> #include <stdio.h> #include <highgui.h> #include <stdlib.h> #include <opencv2 core="" core.hpp=""> #include <opencv2 highgui="" highgui.hpp=""> #include <iostream>

using namespace cv;
int main( int argc, char ** argv )
{
CvCapture* capture;
cvNamedWindow( "video", CV_WINDOW_AUTOSIZE ); 
capture = cvCreateFileCapture("/home/vaibhav/program/c/w.avi");
IplImage* frame;
while(1){
frame = cvQueryFrame( capture );
if( !frame ) break;
cvShowImage( "video", frame );
char c = cvWaitKey(33);
if( c == 27 ) break;
}

cvReleaseCapture( &capture );

cvDestroyWindow( "Webcam" );

return 0; }

the program compiles but it give error when try to run it

i am using ubuntu 12.04 and eclipse

warning: Error opening file (/home/vaibhav/opencv/modules/highgui/src/cap_ffmpeg_impl.hpp:553)

please help me