CN105141971A - Method and system for realizing live broadcast based on session initialization protocol - Google Patents
Method and system for realizing live broadcast based on session initialization protocol Download PDFInfo
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- CN105141971A CN105141971A CN201510588179.1A CN201510588179A CN105141971A CN 105141971 A CN105141971 A CN 105141971A CN 201510588179 A CN201510588179 A CN 201510588179A CN 105141971 A CN105141971 A CN 105141971A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25866—Management of end-user data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/27—Server based end-user applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/437—Interfacing the upstream path of the transmission network, e.g. for transmitting client requests to a VOD server
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/64322—IP
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Graphics (AREA)
- Telephonic Communication Services (AREA)
Abstract
The invention relates to a method and system for realizing live broadcast based on a session initialization protocol and belongs to the VOIP communication technical field. With the method and system adopted, technical problems of resource waste, high maintenance cost and large bandwidth occupancy in VOIP software-based video chat and live broadcast software-based personalized live broadcast in the prior art can be solved. According to the method, a live broadcast end adopts an SIP INVITE method to create a live broadcast room for an SIP server; the live broadcast end transmits audio and video streams to an MCU server; a broadcast end adopts the SIP INVITE method to apply for joining the live broadcast room for the SIP server; after the SIP server reports the IP address and port of the broadcast end to a corresponding conference room of the MCU server, the MCU server pushes the audio and video streams of the live broadcast end to the broadcast end; the conference room of the MCU server is adopted as a live broadcast room; and therefore, either video chat or live broadcast can be realized, and broadband resources and resources occupied by a mobile terminal can be effectively decreased, and maintenance is convenient.
Description
Technical field
The present invention relates to VOIP communication technique field, specifically, relate to a kind of dialogue-based initializtion protocol and realize the live method of terminal and system.
Background technology
Along with the fast development of mobile Internet, the continuous lifting of bandwidth, more and more user's choice for use VOIP software carries out Video chat and live software carries out the live of personalization.Current IP network Video chat adopts SIP soft-exchange construction to realize mostly, live, need streaming media server to realize, 2 functions more than the upper use of a mobile terminal (as mobile phone), installation 2 softwares may be needed, server then needs to dispose Video chat server and streaming media server, this will certainly cause the waste in resource, and maintenance cost is also high.
Owing to being support video conference, i.e. multi-video chat based on the soft-exchange construction of SIP itself, but this be not the framework of net cast, and two-way video flowing to live come word, the bandwidth used is a kind of waste especially.
Summary of the invention
In sum, the object of the invention is to solve existing VOIP software carry out Video chat and live software carry out personalized live time, there is the wasting of resources, maintenance cost is high, the technical deficiency that bandwidth usage is large, and propose a kind of dialogue-based initializtion protocol and realize live method and system.
For solving technical problem proposed by the invention, the technical scheme of employing is: a kind of dialogue-based initializtion protocol realizes live method, it is characterized in that described method includes:
1), studio's step is created
1.1), the INVITE live number of live end transmission not with media information SDP to sip server, and asks to create studio;
1.2), after sip server judges that studio's request is correct, sip server sends to MCU server and creates meeting room request;
1.3), after MCU server created meeting room, return the meeting room media information of the IP address and port numbers including receiving media stream to sip server, the SDP of meeting room media information has been returned to live end by sip server;
1.4), live end to MCU server send audio/video flow, create studio complete;
2) studio's step, is added
2.1), play the live number of INVITE of end transmit band media information SDP to sip server, request adds studio; Play IP address and port numbers that end describes oneself in INVITE SDP;
2.2), sip server judges whether it is live request according to number live in INVITE SDP, and analyzes corresponding studio;
2.3), sip server by broadcasting end media information send to MCU server, MCU server send Media Stream to broadcasting end.
1.2nd) step, according to live number, sip server judges that whether studio's request is correct.
1.3rd) step, media information SDP is returned to live end by SIP200OK by sip server.
2.3rd) step, broadcasting end media information is sent to MCU server by sip server, and replys 200OK successful information to playing end.
1.4th) the live end of step to MCU server send audio/video flow and the 2.3rd) step MCU server send Media Stream to broadcasting end all adopt unidirectional transmission.
The live number that live end creates live request derives from sip server, needs to sip server application live number when starting live; Play live number that uses when end adds corresponding straight room, need to obtain live list to sip server.
Realize the system that described dialogue-based initializtion protocol realizes live method, it is characterized in that described system includes: live end, sip server, MCU server and broadcasting end; Wherein
Live end, for sending the live number of INVITE not with media information SDP to sip server, request creates studio, and to collection audio frequency and video, sends audio/video flow to MCU server;
Sip server, for managing live number segment, resolve the live request to create that live end sends and live the joining request of playing end transmission, judge whether live request to create or live joining request are correct live number, SIPINVITE request is used to create live or add live, INVITE not with SDP message for create live, band SDP live for adding; And create meeting room to MCU server or add meeting room;
MCU server, is responsible for distributing meeting room, uses meeting room to serve as studio, receives the Media Stream of live end, and sends Media Stream to broadcasting end;
Play end, for the live number of INVITE of transmit band media information SDP to sip server, request adds studio, and receives the Media Stream that MCU server sends.
Live end creates live INVITE request and is not with SDP, and give the media information of sip server after MCU server-assignment meeting room, sip server returns to live end by 200OKSDP, and live end sends Media Stream to the address described by SDP and port; Play address and the port of holding INVITE request band SDP, the SDP adding studio to describe self, MCU server sends Media Stream according to this address and port to it.
Beneficial effect of the present invention is: the present invention uses the meeting room of MCU server to serve as studio, the differentiation of the conversation initialized protocol that sip server is sent by client, differentiation is P2P video calling, meeting or live request etc., realize mobile terminal VOIP chat software to realize namely can carrying out video calling, also can carry out live, effective saving broadband resource and mobile terminal take resource, maintenance aspect.
Accompanying drawing explanation
Fig. 1 is system configuration schematic diagram of the present invention;
Fig. 2 is that the present invention creates studio's flow chart of steps;
Fig. 3 is that the present invention adds studio's flow chart of steps;
Fig. 4 is interacting message figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing and the present invention's preferred specific embodiment, the present invention is further described.
The term write a Chinese character in simplified form in literary composition is respectively:
SDP: Session Description Protocol (SessionDescriptionProtocol), the object such as Multimedia session initialization for conversation informing, session invitation and other form provides Multimedia session and describes.
SIP: conversation initialized protocol, for setting up, revising and stop the IP phone signaling protocol of VOIP telephone relation.
Shown in Fig. 4, the present invention is based on conversation initialized protocol and realize live method, it is characterized in that described method includes:
1), studio's step is created
1.1), the INVITE live number of live end transmission not with media information SDP to sip server, and asks to create studio;
1.2), after sip server judges that studio's request is correct, sip server sends to MCU server and creates meeting room request; According to live number, sip server judges that whether studio's request is correct; Live end creates live live number and derives from sip server, needs to sip server application live number when starting live;
1.3), after MCU server created meeting room, return the meeting room media information of the IP address and port numbers including receiving media stream to sip server, the SDP of meeting room media information has been returned to live end by sip server; Media information SDP is returned to live end by SIP200OK by sip server;
1.4), live end to MCU server send audio/video flow, create studio complete;
Also namely live end uses SIPINVITE method to create studio to sip server, and sip server returns media flow IP address and port numbers to live end after creating meeting room to MCU server, and live end sends audio/video flow to MCU server again.
2) studio's step, is added
2.1), play the live number of INVITE of end transmit band media information SDP to sip server, request adds studio; Play IP address and port numbers that end describes oneself in INVITE SDP; Play live number that uses when end adds corresponding straight room, need to obtain live list to sip server;
2.2), sip server judges whether it is live request according to number live in INVITE SDP, and analyzes corresponding studio;
2.3), sip server by broadcasting end media information send to MCU server, MCU server send Media Stream to broadcasting end, and reply 200OK successful information give play end;
Also namely playing end uses SIPINVITE method to add studio to sip server application, and sip server is behind the IP address that end is play in the corresponding meeting room report of MCU server and port, and the audio/video flow of the live end of MCU server push is given and play end; 1.4th) the live end of step to MCU server send audio/video flow and the 2.3rd) step MCU server send Media Stream to broadcasting end all adopt unidirectional transmission.
As shown in fig. 1, realize the system that above-mentioned dialogue-based initializtion protocol realizes live method, include: live end, sip server, MCU server and broadcasting end.
Live end, for sending the live number of INVITE not with media information SDP to sip server, request creates studio, and gathers and be pushed to MCU server by camera collection generating video stream.
Sip server, for managing live number segment, resolve the live request to create that live end sends and live the joining request of playing end transmission, judge whether live request to create or live joining request are correct live number, SIPINVITE request is used to create live or add live, INVITE not with SDP message for create live, band SDP live for adding; And create meeting room to MCU server or add meeting room; Sip server identification SIPINVITE ask for P2P call out, meeting or live etc.; Sip server divides specific number segment (namely live number) to live use, live end uses SIPINVITE method and is with live number to create studio; Play end use SIPINVITE method and be with live number to add studio.
MCU server, is responsible for distributing meeting room, uses meeting room to serve as studio, receives the Media Stream of live end, and sends Media Stream to broadcasting end; Also namely the present invention uses the meeting room of MCU server to serve as studio, and the differentiation of the conversation initialized protocol that sip server is sent by client, differentiation is P2P video calling, meeting or live request etc.The Media Stream of the live end of reception in MCU server meeting room or send to the Media Stream playing end to be all unidirectional, the media stream that live end sends plays end to other in meeting room, and itself does not do the process of mixed-media stream.
Play end, for the live number of INVITE of transmit band media information SDP to sip server, request adds studio, and receives the Media Stream that MCU server sends.
Live end creates live INVITE request and is not with SDP, and give the media information of sip server after MCU server-assignment meeting room, sip server returns to live end by 200OKSDP, and live end sends Media Stream to the address described by SDP and port; Play address and the port of holding INVITE request band SDP, the SDP adding studio to describe self, MCU server sends Media Stream according to this address and port to it; Also namely live end, play end and SIP and take device and use SDP to carry media information not follow offer/answer rule.
Above-mentioned explanation illustrate and describes a preferred embodiment of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in invention contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection range of claims of the present invention.
Claims (8)
1. dialogue-based initializtion protocol realizes a live method, it is characterized in that described method includes:
1), studio's step is created
1.1), the INVITE live number of live end transmission not with media information SDP to sip server, and asks to create studio;
1.2), after sip server judges that studio's request is correct, sip server sends to MCU server and creates meeting room request;
1.3), after MCU server created meeting room, return the meeting room media information of the IP address and port numbers including receiving media stream to sip server, the SDP of meeting room media information has been returned to live end by sip server;
1.4), live end to MCU server send audio/video flow, create studio complete;
2) studio's step, is added
2.1), play the live number of INVITE of end transmit band media information SDP to sip server, request adds studio; Play IP address and port numbers that end describes oneself in INVITE SDP;
2.2), sip server judges whether it is live request according to number live in INVITE SDP, and analyzes corresponding studio;
2.3), sip server by broadcasting end media information send to MCU server, MCU server send Media Stream to broadcasting end.
2. dialogue-based initializtion protocol according to claim 1 realizes live method, it is characterized in that: the 1.2nd) step, according to live number, sip server judges that whether studio's request is correct.
3. dialogue-based initializtion protocol according to claim 1 realizes live method, it is characterized in that: the 1.3rd) step, media information SDP is returned to live end by SIP200OK by sip server.
4. dialogue-based initializtion protocol according to claim 1 realizes live method, it is characterized in that: the 2.3rd) step, and broadcasting end media information is sent to MCU server by sip server, and replys 200OK successful information to playing end.
5. dialogue-based initializtion protocol according to claim 1 realizes live method, it is characterized in that: the 1.4th) the live end of step to MCU server send audio/video flow and the 2.3rd) step MCU server send Media Stream to broadcasting end all adopt unidirectional transmission.
6. dialogue-based initializtion protocol according to claim 1 realizes live method, it is characterized in that: the live number that live end creates live request derives from sip server, needs to sip server application live number when starting live; Play live number that uses when end adds corresponding straight room, need to obtain live list to sip server.
7. realize dialogue-based initializtion protocol described in any one of claim 1 ~ 6 and realize the system of live method, it is characterized in that described system includes: live end, sip server, MCU server and broadcasting end; Wherein
Live end, for sending the live number of INVITE not with media information SDP to sip server, request creates studio, and to collection audio frequency and video, sends audio/video flow to MCU server;
Sip server, for managing live number segment, resolve the live request to create that live end sends and live the joining request of playing end transmission, judge whether live request to create or live joining request are correct live number, SIPINVITE request is used to create live or add live, INVITE not with SDP message for create live, band SDP live for adding; And create meeting room to MCU server or add meeting room;
MCU server, is responsible for distributing meeting room, uses meeting room to serve as studio, receives the Media Stream of live end, and sends Media Stream to broadcasting end;
Play end, for the live number of INVITE of transmit band media information SDP to sip server, request adds studio, and receives the Media Stream that MCU server sends.
8. system according to claim 7, it is characterized in that: live end creates live INVITE request and is not with SDP, the media information of sip server is given after MCU server-assignment meeting room, sip server returns to live end by 200OKSDP, and live end sends Media Stream to the address described by SDP and port; Play address and the port of holding INVITE request band SDP, the SDP adding studio to describe self, MCU server sends Media Stream according to this address and port to it.
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| CN201510588179.1A CN105141971B (en) | 2015-09-16 | 2015-09-16 | A kind of dialogue-based initializtion protocol realizes the method and system of live streaming |
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| CN201510588179.1A CN105141971B (en) | 2015-09-16 | 2015-09-16 | A kind of dialogue-based initializtion protocol realizes the method and system of live streaming |
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| CN108055496A (en) * | 2017-12-26 | 2018-05-18 | 杭州东信北邮信息技术有限公司 | The live broadcasting method and system of a kind of video conference |
| CN110062250A (en) * | 2019-03-14 | 2019-07-26 | 视联动力信息技术股份有限公司 | A kind of method and view networked server of push live streaming list |
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| CN105141971B (en) | 2018-08-28 |
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