1.Implementation for rtp session module; 2.Separate signal server from main project

src/rtp/rtp_session.h

@@ -0,0 +1,40 @@
+#ifndef _RTP_SESSION_H_
+#define _RTP_SESSION_H_
+
+#include <stdint.h>
+
+#include <vector>
+
+#include "rtp_packet.h"
+
+class RtpSession
+
+{
+ public:
+  RtpSession(uint32_t payload_type);
+  ~RtpSession();
+
+ public:
+  RtpPacket Encode(uint8_t* buffer, size_t size);
+
+ private:
+  uint32_t version_ = 0;
+  bool has_padding_ = false;
+  bool has_extension_ = false;
+  uint32_t total_csrc_number_ = 0;
+  bool marker_ = false;
+  uint8_t payload_type_ = 0;
+  uint16_t sequence_number_ = 0;
+  uint32_t timestamp_ = 0;
+  uint32_t ssrc_ = 0;
+  std::vector<uint32_t> csrcs_;
+  uint16_t profile_ = 0;
+  uint16_t extension_profile_ = 0;
+  uint16_t extension_len_ = 0;
+  uint8_t* extension_data_ = nullptr;
+
+ private:
+  RtpPacket* rtp_packet_ = nullptr;
+};
+
+#endif