X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=server%2Fimage.c;h=3c3046727a300ffc5b650f1565d7bef0f0d0fe3a;hb=69d9f5d6774384f76c75248907304b0fbd66bbd1;hp=05a587ea129283dbe5249812678abbfea4a8ba5b;hpb=5d57467589ecefdf5bb5985005705a1c8460c623;p=matches%2FMCTX3420.git

diff --git a/server/image.c b/server/image.c
index 05a587e..3c30467 100644
--- a/server/image.c
+++ b/server/image.c
@@ -3,23 +3,73 @@
 #include "image.h"
 #include <string.h>
 #include <stdio.h>
+#include <pthread.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 = 1600, height = 1200;	// Set Default values
+	FCGIValue val[] = {
+		{"num", &num, FCGI_INT_T},
+		{"width", &width, FCGI_INT_T},
+		{"height", &height, FCGI_INT_T}
+	};
+	if (!FCGI_ParseRequest(context, params, val, 3))	// Populate val
+		return;
+	// Ensure the camera id is 0 or 1. Even though we plan to only have 1 camera attached at a time, this will allow 2. increase
+	else if (num < 0 || num > 1) {				
+		FCGI_RejectJSON(context, "Invalid capture number");
+		return;
+	// Ensure valid widths
+	} else if (width <= 0 || height <= 0) {
+		FCGI_RejectJSON(context, "Invalid width/height");
+		return;
+	}
 	
-	static int p[] = {CV_IMWRITE_JPEG_QUALITY, 100, 0};
+	CvMat * g_src = NULL;   // Source Image
+	CvMat * g_encoded;   	// Encoded Image
 
-	IplImage * frame = cvQueryFrame(capture);
-	assert(frame != NULL);
-	CvMat * jpg = cvEncodeImage(".jpg", frame, p);
+	Camera_GetImage( num, width, height ,g_src); 
+	g_encoded = cvEncodeImage("test_encode.jpg",g_src,0);
 
-	// Will this work?
 	Log(LOGNOTE, "Sending image!");
-	FCGI_PrintRaw("Content-type: image/jpg\r\n\r\n");
-	//FCGI_PrintRaw("Content-Length: %d", jpg->rows*jpg->cols);
-	FCGI_WriteBinary(jpg->data.ptr,1,jpg->rows*jpg->cols);
+	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", g_encoded->rows*g_encoded->cols);
+	FCGI_WriteBinary(g_encoded->data.ptr,1,g_encoded->rows*g_encoded->cols);
 	
+	cvReleaseMat(&g_encoded);
+	cvReleaseMat(&g_src);
+}
+
+ bool Camera_GetImage(int num, int width, int height,  CvMat * image)
+ {
+	static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; // Need to use a mutex to ensure 2 captures are not open at once
+	pthread_mutex_lock(&mutex);
+	bool result = false;
+
+	capture = cvCreateCameraCapture(num);
+
+	cvSetCaptureProperty(capture, CV_CAP_PROP_FRAME_WIDTH, width);
+	cvSetCaptureProperty(capture, CV_CAP_PROP_FRAME_HEIGHT, height);
+
+	IplImage * frame = cvQueryFrame(capture);
+	if( frame == NULL)
+		return result;
+
+	// Convert the IplImage pointer to CvMat
+        CvMat stub;
+        image = cvGetMat(frame, &stub, 0, 0);
+	if( image == NULL)
+		return result;
+
+	// Release the capture and IplImage pointers
+	cvReleaseImageHeader(&frame);
+	cvReleaseCapture(&capture);
+
+	pthread_mutex_unlock(&mutex);	//Close the mutex
+	return true;
 }
+