Support gb28181 sip over udp, ps steam over rtp

trunk/src/protocol/srs_sip_stack.hpp

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+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013-2020 Winlin
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef SRS_PROTOCOL_SIP_HPP
+#define SRS_PROTOCOL_SIP_HPP
+
+#include <srs_core.hpp>
+
+#if !defined(SRS_EXPORT_LIBRTMP)
+
+#include <string>
+#include <sstream>
+
+#include <srs_kernel_consts.hpp>
+#include <srs_rtsp_stack.hpp>
+
+class SrsBuffer;
+class SrsSimpleStream;
+class SrsAudioFrame;
+
+// SIP methods
+#define SRS_SIP_METHOD_REGISTER       "REGISTER"
+#define SRS_SIP_METHOD_MESSAGE        "MESSAGE"
+#define SRS_SIP_METHOD_INVITE         "INVITE"
+#define SRS_SIP_METHOD_ACK            "ACK"
+#define SRS_SIP_METHOD_BYE            "BYE"
+
+// SIP-Version
+#define SRS_SIP_VERSION "SIP/2.0"
+#define SRS_SIP_USER_AGENT RTMP_SIG_SRS_SERVER
+
+
+enum SrsSipCmdType{
+    SrsSipCmdRequest=0,
+    SrsSipCmdRespone=1
+};
+
+class SrsSipRequest
+{
+public:
+    //sip header member
+    std::string method;
+    std::string uri;
+    std::string version;
+    std::string status;
+
+    std::string via;
+    std::string from;
+    std::string to;
+    std::string from_tag;
+    std::string to_tag;
+    std::string branch;
+    
+    std::string call_id;
+    long seq;
+
+    std::string contact;
+    std::string user_agent;
+
+    std::string content_type;
+    long content_length;
+
+    long expires;
+    int max_forwards;
+
+public:
+    std::string serial;
+    std::string realm;
+    std::string sip_auth_id;
+    std::string sip_auth_pwd;
+    std::string sip_username;
+    std::string peer_ip;
+    int peer_port;
+    std::string host;
+    int host_port;
+    SrsSipCmdType cmdtype;
+
+public:
+    SrsRtspSdp* sdp;
+    SrsRtspTransport* transport;
+public:
+    SrsSipRequest();
+    virtual ~SrsSipRequest();
+public:
+    virtual bool is_register();
+    virtual bool is_invite();
+    virtual bool is_message();
+    virtual bool is_ack();
+    virtual bool is_bye();
+   
+    virtual void copy(SrsSipRequest* src);
+public:
+    virtual std::string get_cmdtype_str();
+};
+
+// The gb28181 sip protocol stack.
+class SrsSipStack
+{
+private:
+    // The cached bytes buffer.
+    SrsSimpleStream* buf;
+public:
+    SrsSipStack();
+    virtual ~SrsSipStack();
+public:
+    virtual srs_error_t parse_request(SrsSipRequest** preq, const char *recv_msg, int nb_buf);
+protected:
+    virtual srs_error_t do_parse_request(SrsSipRequest* req, const char *recv_msg);
+
+public:
+    virtual srs_error_t resp_status(std::stringstream& ss, SrsSipRequest *req);
+    virtual srs_error_t resp_keepalive(std::stringstream& ss, SrsSipRequest *req);
+    virtual srs_error_t resp_ack(std::stringstream& ss, SrsSipRequest *req);
+     
+    virtual srs_error_t req_invite(std::stringstream& ss, SrsSipRequest *req, int port);
+    virtual srs_error_t req_bye(std::stringstream& ss, SrsSipRequest *req);
+   
+};
+
+#endif
+
+#endif
+