Fix freeing of a stack allocation. Fix bad LC_ASSERT definition on non-Windows platforms

limelight-common/VideoStream.c

@@ -131,7 +131,7 @@ static void DecoderThreadProc(void* context) {
 }
 
 int readFirstFrame(void) {
-	char firstFrame[1000];
+	char* firstFrame;
 	int err;
 	int offset = 0;
 
@@ -140,6 +140,11 @@ int readFirstFrame(void) {
 		return LastSocketError();
 	}
 
+	firstFrame = (char*)malloc(1500);
+	if (firstFrame == NULL) {
+		return -1;
+	}
+
 	Limelog("Waiting for first frame\n");
 	for (;;) {
 		err = recv(firstFrameSocket, &firstFrame[offset], sizeof(firstFrame) - offset, 0);