use MSList instead of fixed array and clean obsolete code

src/voip/qosanalyzer.h

@@ -30,7 +30,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 extern "C" {
 #endif
 	#define STATS_HISTORY 3
-
 	static const float unacceptable_loss_rate=10;
 	static const int big_jitter=10; /*ms */
 	static const float significant_delay=0.2; /*seconds*/
@@ -52,6 +51,13 @@ extern "C" {
 		bool_t pad[3];
 	}MSSimpleQosAnalyser;
 
+	typedef struct rtcpstatspoint{
+		uint64_t timestamp;
+		double bandwidth;
+		double loss_percent;
+		double rtt;
+	} rtcpstatspoint_t;
+
 	typedef struct _MSStatefulQosAnalyser{
 		MSQosAnalyser parent;
 		RtpSession *session;
@@ -62,11 +68,9 @@ extern "C" {
 		bool_t pad[3];
 
 		MSQosAnalyserNetworkState network_state;
-		struct {
-			double bandwidth;
-			double loss_percent;
-			double rtt;
-		} points[150];
+
+		MSList *rtcpstatspoint;
+		rtcpstatspoint_t *latest;
 		double network_loss_rate;
 		double congestion_bandwidth;
 		uint64_t last_sent_count;