source: proiecte/PPPP/eigenface2/capture.c @ 108

// capture.c - by Robin Hewitt, 2007
// http://www.cognotics.com/opencv/downloads/camshift_wrapper
// This is free software. See License.txt, in the download
// package, for details.
//


#include <stdio.h>
#include "cv.h"
#include "highgui.h"
#include "capture.h"


// File-level variables
CvCapture * pCapture = 0;

//////////////////////////////////
// initCapture()
//
int initCapture()
{
        // Initialize video capture
        pCapture = cvCaptureFromCAM( CV_CAP_ANY );
        if( !pCapture )
        {
                fprintf(stderr, "failed to initialize video capture\n");
                return 0;
        }

        return 1;
}


//////////////////////////////////
// closeCapture()
//
void closeCapture()
{
        // Terminate video capture and free capture resources
        cvReleaseCapture( &pCapture );
        return;
}


//////////////////////////////////
// nextVideoFrame()
//
IplImage * nextVideoFrame()
{
        IplImage * pVideoFrame = cvQueryFrame( pCapture );
        if( !pVideoFrame )
                fprintf(stderr, "failed to get a video frame\n");

        return pVideoFrame;
}