X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=server%2Fimage.c;h=1d352647d71adabdb7996de491b21525619484a4;hb=75b9743b95672218a61811b03433c0ab6e00ec5c;hp=05a587ea129283dbe5249812678abbfea4a8ba5b;hpb=01d1e74d5b4cefd75d9ff4a5a2a404a71a225712;p=matches%2FMCTX3420.git

diff --git a/server/image.c b/server/image.c
index 05a587e..1d35264 100644
--- a/server/image.c
+++ b/server/image.c
@@ -4,22 +4,63 @@
 #include <string.h>
 #include <stdio.h>
 
-void Image_Handler(FCGIContext * context, const char * params)
+CvCapture *capture;
+int captureID = -1;
+
+void Image_Handler(FCGIContext * context, char * params)
 {
-	static CvCapture * capture = NULL;
-	if (capture == NULL)
-		capture = cvCreateCameraCapture(0);
-	
+	int num = 0, width = 800, height = 600;
+	FCGIValue val[] = {
+		{"num", &num, FCGI_INT_T},
+		{"width", &width, FCGI_INT_T},
+		{"height", &height, FCGI_INT_T}
+	};
+	if (!FCGI_ParseRequest(context, params, val, 3))
+		return;
+	else if (num < 0 || num > 1) {
+		FCGI_RejectJSON(context, "Invalid capture number");
+		return;
+	} else if (width <= 0 || height <= 0) {
+		FCGI_RejectJSON(context, "Invalid width/height");
+		return;
+	}
+
+	if (captureID != num) {
+		if (captureID >= 0) {
+			cvReleaseCapture(&capture);
+		}
+		capture = cvCreateCameraCapture(num);
+		captureID = num;
+	}
+
+	cvSetCaptureProperty(capture, CV_CAP_PROP_FRAME_WIDTH, width);
+	cvSetCaptureProperty(capture, CV_CAP_PROP_FRAME_HEIGHT, height);
+
 	static int p[] = {CV_IMWRITE_JPEG_QUALITY, 100, 0};
 
 	IplImage * frame = cvQueryFrame(capture);
 	assert(frame != NULL);
+
+//        CvMat stub;
+ //       CvMat * background = cvGetMat(frame, &stub, 0, 0);
+
+//	CvMat *cv8u = cvCreateMat(frame->width, frame->height, CV_8U);
+//	double min, max;
+//	CvPoint a,b;	
+//	cvMinMaxLoc(background, &min, &max, &a, &b, 0);
+	
+//	double ccscale = 255.0/(max-min);
+//	double ccshift = -min;
+	//cvCvtScale(frame, cv8u, ccscale, ccshift);
 	CvMat * jpg = cvEncodeImage(".jpg", frame, p);
 
 	// Will this work?
 	Log(LOGNOTE, "Sending image!");
-	FCGI_PrintRaw("Content-type: image/jpg\r\n\r\n");
+	FCGI_PrintRaw("Content-type: image/jpg\r\n");
+	FCGI_PrintRaw("Cache-Control: no-cache, no-store, must-revalidate\r\n\r\n");
 	//FCGI_PrintRaw("Content-Length: %d", jpg->rows*jpg->cols);
 	FCGI_WriteBinary(jpg->data.ptr,1,jpg->rows*jpg->cols);
 	
+	cvReleaseMat(&jpg);
+	cvReleaseImageHeader(&frame);
 }