first commit for srt intergrate

srt/Statistic.hpp

@@ -0,0 +1,43 @@
+#ifndef ZLMEDIAKIT_SRT_STATISTIC_H
+#define ZLMEDIAKIT_SRT_STATISTIC_H
+#include <map>
+
+#include "Common.hpp"
+#include "Packet.hpp"
+
+namespace SRT {
+class PacketRecvRateContext {
+public:
+    PacketRecvRateContext() = default;
+    ~PacketRecvRateContext() = default;
+    void inputPacket(TimePoint ts);
+    uint32_t getPacketRecvRate();
+private:
+    std::map<TimePoint,TimePoint> _pkt_map;
+    
+};
+
+class EstimatedLinkCapacityContext {
+public:
+    EstimatedLinkCapacityContext() = default;
+    ~EstimatedLinkCapacityContext() = default;
+    void inputPacket(TimePoint ts);
+    uint32_t getEstimatedLinkCapacity();
+private:
+    std::map<TimePoint,TimePoint> _pkt_map;
+};
+
+class RecvRateContext {
+public:
+    RecvRateContext() = default;
+    ~RecvRateContext() = default;
+    void inputPacket(TimePoint ts,size_t size);
+    uint32_t getRecvRate();
+private:
+    std::map<TimePoint,size_t> _pkt_map;
+};
+
+
+
+} // namespace SRT
+#endif // ZLMEDIAKIT_SRT_STATISTIC_H