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GB28181: Support external SIP server. v6.0.144 (#4101)

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For #3369 to support an external powerful SIP server, do not use the
embedded SIP server of SRS.
For more information, detailed steps, system architecture, and
background explanation, please see
https://ossrs.net/lts/zh-cn/docs/v6/doc/gb28181#external-sip

---------

Co-authored-by: Jacob Su <suzp1984@gmail.com>
Co-authored-by: winlin <winlinvip@gmail.com>
This commit is contained in:
Haibo Chen 2024-07-27 09:06:12 +08:00 • committed by GitHub
parent f76be5fe9b
commit 65ad907fe4
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6 changed files with 238 additions and 9 deletions
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34
trunk/src/app/srs_app_gb28181.hpp
View file

@ -89,6 +89,34 @@ enum SrsGbSipState
};
std::string srs_gb_sip_state(SrsGbSipState state);
// For external SIP server mode, where SRS acts only as a media relay server
// 1. SIP server POST request via HTTP API with stream ID and SSRC
// 2. SRS create session using ID and SSRC, return a port for receiving media streams (indicated in conf).
// 3. External streaming service connect to the port, and send RTP stream (with the above SSRC)
// 4. SRS forward the stream to RTMP stream, named after ID
//
// Request:
// POST /gb/v1/publish/
// {
// "id": "...",
// "ssrc": "..."
// }
// Response:
// {"port":9000, "is_tcp": true}
class SrsGoApiGbPublish : public ISrsHttpHandler
{
private:
SrsConfDirective* conf_;
public:
SrsGoApiGbPublish(SrsConfDirective* conf);
virtual ~SrsGoApiGbPublish();
public:
virtual srs_error_t serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessage* r);
private:
virtual srs_error_t do_serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessage* r, SrsJsonObject* res);
srs_error_t bind_session(std::string stream, uint64_t ssrc);
};
// The main logic object for GB, the session.
// Each session contains a SIP object and a media object, that are managed by session. This means session always
// lives longer than SIP and media, and session will dispose SIP and media when session disposed. In another word,
@ -191,6 +219,8 @@ public:
// Interface ISrsTcpHandler
public:
virtual srs_error_t on_tcp_client(ISrsListener* listener, srs_netfd_t stfd);
private:
srs_error_t listen_api();
};
// A GB28181 TCP SIP connection.
@ -234,6 +264,10 @@ public:
public:
// Get the SIP device id.
std::string device_id();
// For use with external SIP signaling server ONLY
// When using an external SIP signaling server, device id are not available, so manual configuration is required
// This id will be used as the stream name in the RTMP protocol
void set_device_id(const std::string& id);
// Set the cid of all coroutines.
virtual void set_cid(const SrsContextId& cid);
private: