初步添加rtsp转webrtc相关功能

webrtc/ice_server.h

@@ -0,0 +1,40 @@
+#pragma once
+
+#include <functional>
+#include <memory>
+
+#include "logger.h"
+#include "stun_packet.h"
+
+typedef std::function<void(char *buf, size_t len, struct sockaddr_in *remote_address)> UdpSendCallback;
+
+class IceServer {
+public:
+    enum class IceState { kNew = 1, kConnect, kCompleted, kDisconnected };
+    typedef std::shared_ptr<IceServer> Ptr;
+    IceServer();
+    IceServer(const std::string &username_fragment, const std::string &password);
+    const std::string &GetUsernameFragment() const;
+    const std::string &GetPassword() const;
+    void SetUsernameFragment(const std::string &username_fragment);
+    void SetPassword(const std::string &password);
+    IceState GetState() const;
+    void ProcessStunPacket(RTC::StunPacket *packet, struct sockaddr_in *remote_address);
+    void HandleTuple(struct sockaddr_in *remote_address, bool has_use_candidate);
+    ~IceServer();
+    void SetSendCB(UdpSendCallback send_cb) { send_callback_ = send_cb; }
+    void SetIceServerCompletedCB(std::function<void()> cb) { ice_server_completed_callback_ = cb; };
+    struct sockaddr_in *GetSelectAddr() {
+        return &remote_address_;
+    }
+
+private:
+    UdpSendCallback send_callback_;
+    std::function<void()> ice_server_completed_callback_;
+    std::string username_fragment_;
+    std::string password_;
+    std::string old_username_fragment_;
+    std::string old_password_;
+    IceState state{IceState::kNew};
+    struct sockaddr_in remote_address_;
+};