CN105141971B - A kind of dialogue-based initializtion protocol realizes the method and system of live streaming - Google Patents

A kind of dialogue-based initializtion protocol realizes the method and system of live streaming Download PDF

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Publication number
CN105141971B
CN105141971B CN201510588179.1A CN201510588179A CN105141971B CN 105141971 B CN105141971 B CN 105141971B CN 201510588179 A CN201510588179 A CN 201510588179A CN 105141971 B CN105141971 B CN 105141971B
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China
Prior art keywords
live streaming
sip server
live
studio
sdp
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Expired - Fee Related
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CN201510588179.1A
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Chinese (zh)
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CN105141971A (en
Inventor
林溪波
林瑞潮
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Shenzhen Qianhai Zhimei Network Technology Co Ltd
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Shenzhen Qianhai Zhimei Network Technology Co Ltd
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Priority to CN201510588179.1A priority Critical patent/CN105141971B/en
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Classifications

    • 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
    • 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

Abstract

A kind of dialogue-based initializtion protocol realizes the method and system of live streaming, it is related to VOIP communication technique fields, when solving existing VOIP softwares progress Video chat and the live streaming of software progress personalization be broadcast live, there are the wastings of resources, maintenance cost is high, the big technical deficiency of bandwidth usage, live streaming end create studio using SIP INVITE methods to sip server, and live streaming end sends audio/video flow to MCU servers again.End is played using SIP INVITE methods to sip server application addition studio, after sip server corresponds to IP address and the port that meeting room report plays end to MCU servers, the audio/video flow that end is broadcast live in MCU server push gives broadcasting end；Studio is served as using the meeting room of MCU servers, realization can carry out video calling, can also be broadcast live, and effectively save broadband resource and mobile terminal occupies resource, in terms of maintenance.

Description

A kind of dialogue-based initializtion protocol realizes the method and system of live streaming
Technical field
The present invention relates to VOIP communication technique fields, in particular, being to be related to a kind of dialogue-based initializtion protocol realization The method and system of terminal live streaming.
Background technology
With the fast development of mobile Internet, the continuous promotion of bandwidth, more and more user's selections use VOIP softwares Carry out Video chat and software be broadcast live to carry out personalized live streaming.IP network Video chat mostly uses greatly SIP soft switch framves at present Structure is realized, and is broadcast live and streaming media server is then needed to realize, in a mobile terminal（Such as mobile phone）It is upper to use above 2 work( It can, it may be necessary to 2 softwares are installed, and server then needs to dispose Video chat server and streaming media server, this is bound to The waste in resource, maintenance cost can be caused also high.
Since the soft-exchange construction itself based on SIP is to support video conference, i.e. multi-video chat, but this be not The framework of net cast, and two-way video flowing carrys out word to being broadcast live, and used bandwidth is even more a kind of waste.
Invention content
In conclusion it is an object of the invention to solve, existing VOIP softwares carry out Video chat and live streaming software carries out When the live streaming of personalization, there are the wastings of resources, and maintenance cost is high, the big technical deficiency of bandwidth usage, and proposes one kind and be based on Session initiation protocol realizes the method and system of live streaming.
To solve technical problem proposed by the invention, the technical solution used for：A kind of dialogue-based initializtion protocol The method for realizing live streaming, it is characterised in that the method includes having：
1）, create studio's step
1.1), live streaming end sends the INVITE live streaming numbers without 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 servers and creates meeting It asks room；
1.3) after, MCU servers create completion meeting room, return includes to receive the IP address and port numbers of Media Stream The SDP of meeting room media information is returned to live streaming end by meeting room media information to sip server, sip server；
1.4), live streaming end sends audio/video flow to MCU servers, creates studio and completes；
2）, be added studio's step
2.1), broadcasting end sends the INVITE live streaming numbers with media information SDP to sip server, and request addition adds straight Broadcast room；Play end IP address and port numbers of oneself described in INVITE message SDP；
2.2), sip server according in INVITE message SDP be broadcast live number judge whether be live streaming request, and analyze pair The studio answered；
2.3), sip server will play end media information and be sent to MCU servers, and MCU servers send Media Stream to broadcasting Put end.
The 1.2) step, sip server judge whether studio asks correct according to live streaming number.
The 1.3) media information SDP is returned to live streaming end by step, sip server by SIP 200OK.
The 2.3) step, sip server is sent to MCU servers by end media information is played, and replys 200OK successful informations Give broadcasting end.
The 1.4) step be broadcast live end to MCU servers send audio/video flow and the 2.3) step MCU servers send Media Stream to It plays end and is all made of unidirectional transmission.
End is broadcast live and creates the live streaming number that request is broadcast live from sip server, is needed to sip server when starting live streaming Application live streaming number；It plays end and the live streaming number used when corresponding straight room is added, need to obtain live streaming number row to sip server Table.
Realize the system that the dialogue-based initializtion protocol realizes the method for live streaming, it is characterised in that the system comprises Have：End, sip server, MCU servers is broadcast live and plays end；Wherein
End is broadcast live, for sending the INVITE live streaming numbers without media information SDP to sip server, request creates straight Room is broadcast, and to acquisition audio and video, audio/video flow is sent to MCU servers；
Sip server, for managing live streaming number segment, parsing is broadcast live the live streaming request to create that end is sent and plays end and sends Live streaming request is added, judge that request to create or live streaming, which is broadcast live, is added whether request is correct live streaming number, uses SIP INVITE requests create live streaming or addition live streaming, and INVITE is to create live streaming without SDP message, are to be added directly with SDP It broadcasts；And it creates meeting room to MCU servers or meeting room is added；
MCU servers, are responsible for distribution meeting room, serve as studio using meeting room, receive the Media Stream at live streaming end, concurrently Media Stream is sent to give broadcasting end；
Broadcasting end, for sending the INVITE live streaming numbers with media information SDP to sip server, request addition adds straight Room is broadcast, and receives the Media Stream of MCU servers transmission.
End is broadcast live and creates the INVITE requests being broadcast live without SDP, MCU servers distribute after meeting room to sip server Media information, sip server return to live streaming end by 200OK SDP, and live streaming end is sent to address described in SDP and port Media Stream；INVITE request the bands SDP, SDP for playing end addition studio describe the address and port of itself, MCU server roots Address and port are sent to Media Stream accordingly.
Beneficial effects of the present invention are：The present invention serves as studio using the meeting room of MCU servers, and sip server is logical The differentiation for the session initiation protocol that client is sent out is crossed, differentiation is P2P video callings, meeting or live streaming request etc., is realized VOIP chat softwares realization in mobile terminal can carry out video calling, can also be broadcast live, and effectively save broadband resource and shifting Dynamic terminal occupies resource, in terms of maintenance.
Description of the drawings
Fig. 1 is the system structure diagram of the present invention；
Fig. 2 is that the present invention creates studio's flow chart of steps；
Fig. 3 is that studio's flow chart of steps is added in the present invention；
Fig. 4 is interacting message figure of the present invention.
Specific implementation mode
The present invention is further described below in conjunction with attached drawing and currently preferred specific embodiment.
The term write a Chinese character in simplified form in text is respectively：
SDP:Session Description Protocol (Session Description Protocol) is conversation informing, session invitation The purpose of being initialized with the Multimedia session of other forms provides Multimedia session description.
SIP：Session initiation protocol, the IP phone signaling protocol for establishing, changing and terminating VOIP telephone relations.
Shown in Fig. 4, the present invention is based on the methods that session initiation protocol realizes live streaming, it is characterised in that The method includes having：
1）, create studio's step
1.1), live streaming end sends the INVITE live streaming numbers without 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 servers and creates meeting It asks room；Sip server judges whether studio's request is correct according to live streaming number；The live streaming number source that end creates live streaming is broadcast live In sip server, need that number is broadcast live to sip server application when starting live streaming；
1.3) after, MCU servers create completion meeting room, return includes to receive the IP address and port numbers of Media Stream The SDP of meeting room media information is returned to live streaming end by meeting room media information to sip server, sip server；SIP service Media information SDP is returned to live streaming end by device by SIP 200OK；
1.4), live streaming end sends audio/video flow to MCU servers, creates studio and completes；
Namely live streaming end creates studio using SIP INVITE methods to sip server, sip server is serviced to MCU After device creates meeting room, media flow IP address and port numbers are returned to live streaming end, live streaming end sends audio and video to MCU servers again Stream.
2）, be added studio's step
2.1), broadcasting end sends the INVITE live streaming numbers with media information SDP to sip server, and request addition adds straight Broadcast room；Play end IP address and port numbers of oneself described in INVITE message SDP；Playing when corresponding straight room is added in end makes Live streaming number needs to obtain live streaming list to sip server；
2.2), sip server according in INVITE message SDP be broadcast live number judge whether be live streaming request, and analyze pair The studio answered；
2.3), sip server will play end media information and be sent to MCU servers, and MCU servers send Media Stream to broadcasting End is put, and replys 200OK successful informations and gives broadcasting end；
Namely play end and studio is added to sip server application using SIP INVITE methods, sip server is to MCU After server corresponds to IP address and the port that meeting room report plays end, the audio/video flow at MCU server push live streaming end is broadcast Put end；The 1.4) step be broadcast live end to MCU servers send audio/video flow and the 2.3) step MCU servers send Media Stream to broadcasting End is all made of unidirectional transmission.
As shown in fig. 1, it realizes the system that above-mentioned dialogue-based initializtion protocol realizes the method for live streaming, includes： End, sip server, MCU servers is broadcast live and plays end.
End is broadcast live, for sending the INVITE live streaming numbers without media information SDP to sip server, request creates straight Room is broadcast, and acquisition is acquired by camera and generates pushing video streaming to MCU servers.
Sip server, for managing live streaming number segment, parsing is broadcast live the live streaming request to create that end is sent and plays end and sends Live streaming request is added, judge that request to create or live streaming, which is broadcast live, is added whether request is correct live streaming number, uses SIP INVITE requests create live streaming or addition live streaming, and INVITE is to create live streaming without SDP message, are to be added directly with SDP It broadcasts；And it creates meeting room to MCU servers or meeting room is added；Sip server identification SIP INVITE requests are exhaled for P2P It cries, meeting is still broadcast live；It divides specific number segment (i.e. live streaming number) on sip server to use to live streaming, live streaming end makes Studio is created with SIP INVITE methods and with live streaming number；End is played to be added directly using SIP INVITE methods and with live streaming number Broadcast room.
MCU servers, are responsible for distribution meeting room, serve as studio using meeting room, receive the Media Stream at live streaming end, concurrently Media Stream is sent to give broadcasting end；Namely the present invention serves as studio using the meeting room of MCU servers, sip server passes through client It is P2P video callings, meeting or live streaming request etc. to hold the differentiation of the session initiation protocol sent out, differentiation.MCU server meetings The Media Stream at the reception live streaming end in view room or the Media Stream for being sent to broadcasting end are all media unidirectional, that live streaming end is sent Stream is sent to other broadcasting ends in meeting room, itself does not do the processing of mixed-media stream.
Broadcasting end, for sending the INVITE live streaming numbers with media information SDP to sip server, request addition adds straight Room is broadcast, and receives the Media Stream of MCU servers transmission.
End is broadcast live and creates the INVITE requests being broadcast live without SDP, MCU servers distribute after meeting room to sip server Media information, sip server return to live streaming end by 200OK SDP, and live streaming end is sent to address described in SDP and port Media Stream；INVITE request the bands SDP, SDP for playing end addition studio describe the address and port of itself, MCU server roots Address and port are sent to Media Stream accordingly；Namely live streaming end, broadcasting end and SIP take device and carry media information not using SDP Follow offer/answer rules.
A preferred embodiment of the present invention has shown and described in above description, but as previously described, it should be understood that the present invention Be not limited to form disclosed herein, be not to be taken as excluding other embodiments, and can be used for various other combinations, Modification and environment, and the above teachings or related fields of technology or knowledge can be passed through in the scope of the invention is set forth herein It is modified.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, then it all should be in this hair In the protection domain of bright appended claims.

Claims (3)

1. a kind of method that dialogue-based initializtion protocol realizes live streaming, it is characterised in that the method includes having：
1）, create studio's step
1.1), live streaming end sends the INVITE live streaming numbers without media information SDP to sip server, and asks to create and be broadcast live Room；
1.2) after, sip server judges that studio's request is correct, sip server sends establishment meeting room to MCU servers and asks It asks；Sip server judges whether studio's request is correct according to live streaming number；The live streaming number that live streaming end creates live streaming derives from Sip server needs that number is broadcast live to sip server application when starting live streaming；
1.3) after, MCU servers create completion meeting room, return includes the meeting of the IP address and port numbers that receive Media Stream The SDP of meeting room media information is returned to live streaming end by room media information to sip server, sip server；Sip server will Media information SDP returns to live streaming end by SIP 200OK；
1.4), live streaming end sends audio/video flow to MCU servers, creates studio and completes；
Namely live streaming end creates studio using SIP INVITE methods to sip server, sip server is created to MCU servers After building meeting room, media flow IP address and port numbers are returned to live streaming end, live streaming end sends audio/video flow to MCU servers again；
2）, be added studio's step
2.1) it, plays end and sends the INVITE live streaming numbers with media information SDP to sip server, request is added plus studio； Play end IP address and port numbers of oneself described in INVITE message SDP；It plays when corresponding studio is added in end and uses Live streaming number, need to sip server obtain live streaming list；
2.2), sip server judges whether it is live streaming request according to live streaming number in INVITE message SDP, and analyzes corresponding Studio；
2.3), sip server will play end media information and be sent to MCU servers, and MCU servers send Media Stream to broadcasting End, and reply 200OK successful informations and give broadcasting end；
Namely play end and studio is added to sip server application using SIP INVITE methods, sip server is serviced to MCU After device corresponds to IP address and the port that meeting room report plays end, the audio/video flow that end is broadcast live in MCU server push gives broadcasting end； The 1.4) step be broadcast live that end sends audio/video flow to MCU servers and the 2.3) to send Media Stream equal to end is played for step MCU servers It is sent using unidirectional.
2. realizing the system that dialogue-based initializtion protocol described in claim 1 realizes the method for live streaming, it is characterised in that described System includes：End, sip server, MCU servers is broadcast live and plays end；Wherein
End is broadcast live, for sending the INVITE live streaming numbers without media information SDP to sip server, request creates studio, And acquisition audio and video, send audio/video flow to MCU servers；
Sip server parses live streaming request to create and play the straight of end transmission that live streaming end is sent for managing live streaming number segment Addition request is broadcast, judges that request to create or live streaming, which is broadcast live, is added whether request is correct live streaming number, is asked using SIP INVITE Establishment is asked to be broadcast live or be added live streaming, INVITE is to create live streaming without SDP message, is that live streaming is added with SDP；And to MCU servers create meeting room or meeting room are added；
MCU servers, are responsible for distribution meeting room, serve as studio using meeting room, receive the Media Stream at live streaming end, and send matchmaker Body stream gives broadcasting end；
End is played, for sending the INVITE live streaming numbers with media information SDP to sip server, request is added plus studio, And receive the Media Stream of MCU servers transmission.
3. system according to claim 2, it is characterised in that：End is broadcast live and creates the INVITE requests of live streaming without SDP, MCU The media information of sip server, sip server is given to return media information SDP by SIP 200OK after server distribution meeting room Back to live streaming end, live streaming end sends Media Stream to address described in SDP and port；The INVITE for playing end addition studio is asked Band SDP, SDP is asked to describe the address and port of itself, MCU servers are sent to Media Stream according to this address and port.
CN201510588179.1A 2015-09-16 2015-09-16 A kind of dialogue-based initializtion protocol realizes the method and system of live streaming Expired - Fee Related CN105141971B (en)

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