CN101674317A - RTSP-based method for accessing a plurality of terminals, streaming media server and system thereof - Google Patents
RTSP-based method for accessing a plurality of terminals, streaming media server and system thereof Download PDFInfo
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- CN101674317A CN101674317A CN200910207233A CN200910207233A CN101674317A CN 101674317 A CN101674317 A CN 101674317A CN 200910207233 A CN200910207233 A CN 200910207233A CN 200910207233 A CN200910207233 A CN 200910207233A CN 101674317 A CN101674317 A CN 101674317A
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Abstract
The invention discloses an RTSP-based method for accessing a plurality of terminals, a streaming media server and a system thereof, and belongs to the cross technical field of communication and streaming media. The method comprises the following steps: the streaming media server accepts registration of an RTSP/SIP terminal with a streaming media resource, stores corresponding information of the streaming media resource and informs a portal management server terminal to be online; when a user selects a terminal and requests for display according to the associated information of the terminal provided by the portal management server, the streaming media server receives the request of the streaming media player of the user, and sends the streaming media of the terminal to the streaming media player to play to the user by the connection between the terminal and the streaming media player. The streaming media server comprises a terminal registration module, a request receiving and connectionestablishing module, and a streaming media forwarding module. The system comprises a terminal, a streaming media server, a portal management server and a streaming media player. The method helps thestreaming media player access media resources of a plurality of other terminals based on the existing RTSP and SIP.
Description
Technical field
The present invention relates to communicate by letter and the crossing domain of stream media technology particularly a kind of method, streaming media server and system that visits multiple terminal based on RTSP.
Background technology
RTSP (Real Time Streaming Protocol, real time streaming transport protocol) is based on server/customer end constitution, be exclusively used in the control protocol of media-on-demand, in RFC2326, defined relevant message: announce the ability (ANNOUNCE) of oneself, set up session (SETUP), play (PLAY), suspend (PAUSE), describe medium (DESCRIBE), conversation end (TEARDOWN) or the like.
SIP (Session Initiation Protocol, Session initiation Protocol) is the agreement that is proposed by IETF, is mainly used in the real-time communications field, as business such as audio frequency, video calling and meetings.RFC3261 has defined the message that some sessions are set up: registration (REGISTER), request (INVITE) is confirmed (ACK), finishes (BYE) or the like, has also defined some responses to these message.After Session Initiation Protocol occurs, accepted, and done a lot of expansions by a lot of correspondence entities.It is mainly used in follow-on complete IP network 3G IMS field, and in the standard that correspondence entity is formulated, SIP has become a main signaling protocol.
At present, obtained using widely based on the stream media technology of RTSP, a lot of simultaneously free and simply based on the players of RTSP, as mobile phone, RealPlayer or the like can allow the user be convenient to use, and watches media resource.But in server/customer end constitution, the situation that numerous Streaming Media source distribution relatively disperse can not well realize addressing, may cause the IP bag to send less than the destination, causes the interruption of signaling and Media Stream.
SIP by everybody approval, has had a lot of terminals based on SIP as the communication protocol in future on the market, as the SIP visual telephone, and SIP monitor terminal or the like.But, in the communications field, owing to the complexity of network, build slowly and have a NAT (Network Address Translation, network address translation) insoluble problem such as, make that sip terminal really is not applied in the visit of Streaming Media before the all-IP communication system of complexity such as 3G IMS do not set up.
Summary of the invention
In order to solve the problem that prior art exists, the embodiment of the invention provides a kind of method, apparatus and system of visiting multiple terminal based on RTSP.Described technical scheme is as follows:
A kind ofly visit the method for multiple terminal based on real time streaming transport protocol, described method comprises:
Streaming media server is accepted the registration of the terminal of streaming media resource in advance, store the streaming media resource relevant information of described terminal, and the described terminal of notice door management server is a presence, and described terminal is real time streaming transport protocol RTSP terminal or Session initiation Protocol sip terminal;
The relevant information of the described terminal that provides according to described door management server as the user, when selecting described terminal request playing stream media, described streaming media server receives the request that described user's DST PLAYER is sent, and described DST PLAYER is supported the RTSP agreement;
Described streaming media server by with described terminal between be connected, and with described DST PLAYER between be connected, the Streaming Media from described terminal that receives is transmitted to described DST PLAYER, plays to described user by described DST PLAYER.
A kind of streaming media server, described streaming media server comprises:
The endpoint registration module, be used for accepting in advance the registration of the terminal of streaming media resource, store the streaming media resource relevant information of described terminal, and notice door management server described terminal is presence, described terminal is real time streaming transport protocol RTSP terminal or Session initiation Protocol sip terminal;
Request receives and sets up module with being connected, the relevant information that the described terminal that provides according to described door management server as the user is provided, when selecting described terminal request playing stream media, receive the RTSP request that described user's DST PLAYER is sent, be established to the connection of described DST PLAYER;
The Streaming Media forwarding module, be used for by being connected between described streaming media server and the described terminal, and being connected between described streaming media server and the described DST PLAYER, the Streaming Media from described terminal that receives is transmitted to described DST PLAYER, plays to described user by described DST PLAYER.
A kind ofly visit the system of multiple terminal based on real time streaming transport protocol, described system comprises: terminal, streaming media server, door management server and support the DST PLAYER of real time streaming transport protocol RTSP agreement;
Described terminal has streaming media resource, is used for to described streaming media server registration, provide described streaming media resource for described DST PLAYER visit by described streaming media server, and described terminal is RTSP terminal or Session initiation Protocol sip terminal;
Described streaming media server, be used for accepting in advance the registration of described terminal, store the streaming media resource relevant information of described terminal, and notifying the described terminal of described door management server is presence, the relevant information of the described terminal that provides according to described door management server as the user, when selecting described terminal request playing stream media, receive the request that described user's DST PLAYER is sent, by with described terminal between be connected, and with described DST PLAYER between be connected, the Streaming Media from described terminal that receives is transmitted to described DST PLAYER;
Described door management server, be used for receiving the presence information of described terminal from described streaming media server, and the relevant information that described terminal is provided is to described user, and when described user selected described terminal request playing stream media, the access address that generates described terminal was given described user;
Described DST PLAYER, the relevant information that the described terminal that provides according to described door management server as described user is provided, when selecting described terminal request playing stream media, send request to described streaming media server, and the streaming media playing that the described streaming media server that will receive returns is given described user.
The technique scheme that the embodiment of the invention provides based on existing public RTSP and Session Initiation Protocol, by some simple equipment, makes the DST PLAYER of popularizing at present can visit the media resource of other numerous terminals.To be simple and easy to the DST PLAYER of usefulness, connect, realized that DST PLAYER visits the media resource of these terminals in real time, be convenient for people to use, effectively utilized the existing resource of network with above-mentioned RTSP terminal and sip terminal.The present invention supports a plurality of DST PLAYERs to watch same terminal simultaneously.
Description of drawings
Fig. 1 is the networking structure schematic diagram that the embodiment of the invention provides;
Fig. 2 is the method flow schematic diagram based on RTSP visit RTSP terminal that the embodiment of the invention 1 provides;
Fig. 3 is the schematic flow sheet of the RTSP terminal that provides of the embodiment of the invention 1 to the streaming media server registration;
Fig. 4 is the schematic flow sheet of the user capture door management server that provides of the embodiment of the invention 1 and streaming media server checking;
To be the streaming media server that provides of the embodiment of the invention 1 exist when being connected the forwarding Media Stream to the schematic flow sheet of DST PLAYER with the RTSP terminal to Fig. 5;
Fig. 6 is that the streaming media server that provides of the embodiment of the invention 1 does not exist with the RTSP terminal and transmits the schematic flow sheet of Media Stream to DST PLAYER when being connected;
Fig. 7 is that the streaming media server that the embodiment of the invention 1 provides responds the schematic flow sheet that suspends playing request;
Fig. 8 is that the streaming media server that the embodiment of the invention 1 provides responds the schematic flow sheet that recovers playing request;
Fig. 9 is that the streaming media server that the embodiment of the invention 1 provides responds the schematic flow sheet that stops playing request;
Figure 10 is the method flow schematic diagram based on RTSP visit sip terminal that the embodiment of the invention 2 provides;
Figure 11 is the schematic flow sheet of the sip terminal that provides of the embodiment of the invention 2 to the streaming media server registration;
Figure 12 is that the streaming media server that provides of the embodiment of the invention 2 does not exist with sip terminal and transmits the schematic flow sheet of Media Stream to DST PLAYER when being connected;
Figure 13 is that the streaming media server that the embodiment of the invention 2 provides responds the schematic flow sheet that stops playing request;
Figure 14 is the streaming media server structural representation that the embodiment of the invention 3 provides;
Figure 15 be the embodiment of the invention 4 provide visit the system configuration schematic diagram of multiple terminal based on RTSP.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
The embodiment of the invention provides a kind of method based on the multiple terminal of RTSP protocol access, comprising:
Streaming media server is accepted the registration of the terminal of streaming media resource in advance, the streaming media resource relevant information of storage terminal, and this terminal of notice door management server is presence, this terminal is RTSP terminal or sip terminal; The relevant information of the terminal that provides according to the door management server as the user, when selecting this terminal request playing stream media, streaming media server receives the request that user's DST PLAYER is sent, and this DST PLAYER is supported the RTSP agreement; Streaming media server by with terminal between be connected, and with DST PLAYER between be connected, the Streaming Media that comes self terminal that receives is transmitted to DST PLAYER, play to the user by DST PLAYER.
Referring to Fig. 1, the DST PLAYER that the embodiment of the invention relates to is meant the DST PLAYER (RTSP-Player) of supporting the RTSP agreement, is installed in the client of user side.The terminal that relates to has streaming media resource, can comprise for user capture: RTSP terminal (RTSP-Terminal) and sip terminal (SIP-Terminal).Wherein, the RTSP terminal is meant the terminal of supporting the RTSP agreement, as supporting RTSP protocol of I P video camera; Sip terminal is meant the terminal of supporting Session Initiation Protocol, as the visual telephone of supporting Session Initiation Protocol and video camera etc.The door management server (Portal) that relates to is meant the server of being in charge of and safeguarding above-mentioned terminal information, and it provides terminal information to browse, select and ask to play for the user, can be website or administration interface etc.When being the Web webpage, the user can by HTTP from its interface of remote browse and the URL (Uniform Resource Locator, URL(uniform resource locator)) of terminal that obtains the request visit to local.The streaming media server that relates to (MediaServer) provides the processing of signaling and Media Stream, can be realized by an equipment, also can be realized by a plurality of equipment.
In the embodiment of the invention, each RTSP terminal and sip terminal in the network all have unique sign.All are in the terminal of streaming media server registration, and its sign and on-line state information can announce on the door management server that the user can check relevant terminal information according to the authority of oneself on the door management server.Can discern and arrive terminal in the network by these signs.
The technical scheme that the embodiment of the invention provides can realize polytype terminal is conducted interviews, and comprises RTSP terminal and sip terminal.In actual applications, can visit a plurality of terminals simultaneously, any terminal in these a plurality of terminals can be RTSP terminal or sip terminal.Be that example describes to visit a terminal below, when a plurality of terminal of visit, its process all process with a terminal of visit is identical, does not give unnecessary details.
Embodiment 1
Referring to Fig. 2, present embodiment provides a kind of method based on the multiple terminal of RTSP protocol access, is applied to the RTSP terminal, specifically comprises:
201: streaming media server is accepted the registration of the RTSP terminal of streaming media resource in advance, the streaming media resource relevant information of storage RTSP terminal, and this RTSP terminal of notice door management server is a presence.
Particularly, referring to Fig. 3, the process of RTSP endpoint registration is as follows:
After the 201a:RTSP terminal powered on, timed sending ANNOUNCE message was given streaming media server, reported the existence of oneself, comprised the media resource information and the media capability information of RTSP terminal in this ANNOUNCE message, can describe with SDP;
201b: after streaming media server receives this ANNOUNCE message, return 200 responses and give the RTSP terminal, and the media resource information and the media capability information of storage RTSP terminal;
201c: it is presence that streaming media server is reported the RTSP terminal to the door management server.
The order of above-mentioned 201b and 201c is unfixing, can carry out simultaneously yet.
Above-mentioned ANNOUNCE message is the timed sending of RTSP terminal, and the transmission cycle can be set to different values as required.Further, media resource information and media capability information in streaming media server storage RTSP terminal, and report after the presence for the door management server, if surpass this transmission cycle, streaming media server is not also received the ANNOUNCE message that the RTSP terminal is sent, and then notifies door management server RTSP terminal to be in off-line state.Correspondingly, the door management server can announce correspondingly the user can check whether terminal is online, thereby avoids user capture to be in the terminal of off-line state.
202: the relevant information of the terminal that provides according to the door management server as the user, when selecting RTSP terminal request playing stream media, streaming media server receives the request that user's DST PLAYER is sent.This relevant information comprises: whether the basic description of terminal and terminal be online or the like, is camera as terminal, and this relevant information is the description and the presence of camera.
Further, streaming media server can also carry out safety verification, and to improve the fail safe of user capture terminal, referring to Fig. 4, detailed process is as follows:
202a: the information of user's browsing terminal on the door management server, as the webpage by HTTP remote browse door management server, the user selects a terminal to be visited;
202b: the door management server provides a RTSP URL that can visit this terminal at short notice to the user, at this moment, the operating system of subscription client can start mounted RTSP DST PLAYER automatically, includes the sign of terminal and the term of validity of URL among this URL;
Wherein, the term of validity of URL is that the door management server generates automatically, as 20s, 30s etc.The user can visit the terminal of this URL correspondence in this term of validity, surpasses this term of validity, and then the user can not visit this terminal.
202c: the DST PLAYER of subscription client sends DESCRIBE message to streaming media server according to this URL, and request obtains the media capability of the terminal of this URL correspondence, includes this URL in this DESCRIBE message.
202d: streaming media server is after receiving DESCRIBE message, extract URL, determine the terminal that the user is to be visited according to the sign of the terminal that comprises among the URL, and according to the term of validity that comprises among the URL, verify whether this URL is effective, if effectively, then reply 200 responses and give DST PLAYER (as shown in FIG.), and carry the media capability information of the terminal of streaming media server storage in this 200 response; If lost efficacy, then denied access is returned 462 (Destination Unreachable) response, and flow process finishes (not shown).
203: whether being connected between streaming media server judges and the above-mentioned RTSP terminal exists, if exist, then carries out 204; Otherwise, carry out 205;
204: the Streaming Media that comes self terminal that streaming media server will receive is transmitted to DST PLAYER, plays to the user by DST PLAYER, and flow process finishes.
Referring to Fig. 5, specific as follows:
204a: streaming media server detects the connection that has this RTSP terminal, and receives the SETUP message that user's DST PLAYER is sent;
204b: streaming media server returns 200 responses and gives DST PLAYER, thereby sets up being connected between streaming media server and the DST PLAYER;
204c: DST PLAYER sends PLAY message to streaming media server, the media resource of this RTSP terminal of request visit;
204d: after streaming media server is received PLAY message, return 200 responses and give DST PLAYER, and will be transmitted to DST PLAYER from the Media Stream of RTSP terminal, play to the user after DST PLAYER is received, flow process finishes.
Wherein, if there are a plurality of users to visit this RTSP terminal simultaneously, then streaming media server is transmitted respectively with regard to duplicate portion for each user after.
205: streaming media server is established to the connection of this RTSP terminal earlier, and the Media Stream from the RTSP terminal that will receive then is transmitted to DST PLAYER, plays to the user by DST PLAYER, and flow process finishes.
Referring to Fig. 6, streaming media server connects and to transmit the process of Media Stream specific as follows:
205a: DST PLAYER sends SETUP message to streaming media server;
205b: after streaming media server is received SETUP message, send new SETUP message to the RTSP terminal;
After the 205c:RTSP terminal is received, reply 200 responses and give streaming media server, set up to the connection of streaming media server thereby finish the RTSP terminal;
205d: streaming media server is replied 200 responses and is given DST PLAYER, sets up to the connection of DST PLAYER thereby finish streaming media server;
205e: DST PLAYER sends PLAY message to streaming media server, the media resource of this RTSP terminal of request visit;
205f: after streaming media server is received PLAY message, be transmitted to this RTSP terminal;
After the 205g:RTSP terminal is received, return 200 responses and give streaming media server, and begin to send Media Stream;
205h: after streaming media server is received 200 responses that the RTSP terminal sends, send 200 responses to DST PLAYER, and will be transmitted to DST PLAYER, play to the user after DST PLAYER is received from the Media Stream of RTSP terminal.
In the said method that present embodiment provides, further,, after DST PLAYER is given user's media stream, can also comprise referring to Fig. 7:
If streaming media server receives the time-out request that DST PLAYER sends, the Streaming Media that then stops forwarding self terminal is to DST PLAYER, and being connected between maintenance and the terminal.Referring to Fig. 7, specifically comprise:
701: when user's time-out was watched, DST PLAYER sent PAUSE message to streaming media server, and request suspends plays current Media Stream;
702: after streaming media server is received PAUSE message, reply 200 responses and give DST PLAYER, and suspend the Media Stream of transmitting from the RTSP terminal and give DST PLAYER, at this moment, being connected and can keeping between streaming media server and the RTSP terminal, and can receive Media Stream from the RTSP terminal.
In the present embodiment, if the user suspends and to watch, and streaming media server stops forwarding after medium flow to DST PLAYER, if the user recovers to watch, then referring to Fig. 8, said method can also comprise:
801: when the user recovered to watch, DST PLAYER sent RESUME message to streaming media server;
802: after streaming media server is received RESUME message, reply 200 responses and give DST PLAYER, and the Media Stream that restarts to transmit from the RTSP terminal is given DST PLAYER.
In the present embodiment, further, referring to Fig. 9, after the user watched Streaming Media, if stop to watch, then said method can also comprise:
If streaming media server receives the playing request that stops that DST PLAYER sends, then stop to send Streaming Media to DST PLAYER, and being connected between dismounting and the DST PLAYER; Judge whether in addition other DST PLAYER in visit RTSP terminal, if, then continue as other DST PLAYER service, otherwise, remove with the RTSP terminal between be connected.
901: when the user stopped to watch, DST PLAYER sent TEARDOWN message to streaming media server;
902: after streaming media server is received TEARDOWN message, reply 200 responses and give DST PLAYER, discharge and being connected of DST PLAYER, and stop forwarding Media Stream from the RTSP terminal to DST PLAYER;
903: whether streaming media server judges also has other user to watch the media resource of this RTSP terminal this moment, if do not have, then sends TEARDOWN message to the RTSP terminal;
After the 904:RTSP terminal is received, reply 200 responses and give streaming media server, discharge being connected between RTSP terminal and the streaming media server, streaming media server disposes for above-mentioned user's the playing request that stops.
Wherein, if streaming media server judges goes out current other user of also having at the media resource of watching this RTSP terminal in 903, then continue as other and watch the user of this RTSP terminal media resource to serve (not shown).
Embodiment 2
Referring to Figure 10, present embodiment provides a kind of method based on the multiple terminal of RTSP protocol access, is applied to sip terminal, specifically comprises:
1001: streaming media server is accepted the registration of the sip terminal of streaming media resource in advance, the streaming media resource relevant information of storage sip terminal, and this sip terminal of notice door management server is a presence;
Particularly, referring to Figure 11, the process of sip terminal registration is as follows:
After the 1001a:SIP terminal powered on, timed sending REGISTER message was given streaming media server, reported the existence of oneself, and is online with notification streams media server oneself;
1001b: after streaming media server is received REGISTER message, return 200 responses and give sip terminal;
1001c: the incident that streaming media server is reached the standard grade sip terminal is reported to the door management server;
1001d: whether this REGISTER message of streaming media server judges is that sip terminal is under the situation of off-line, the REGISTER message of the sending first time, if, then streaming media server need obtain the media capability of sip terminal, therefore, streaming media server is initiated a calling to this sip terminal, promptly sends INVITE to sip terminal, and carries the media capability requirement of streaming media server configuration in this INVITE;
Usually, streaming media server can dispose a set that comprises multiple media capability, after terminal is received, responds accordingly according to oneself media capability.
After the 1001e:SIP terminal was received INVITE, automatic-answering back device should be called out, and replied 200 responses, carried the media capability that present sip terminal supports and the media resource information of sip terminal in this response;
According to Session Initiation Protocol, sip terminal if self there is not the ability of coupling, then has corresponding description in response when replying response, if can mate, then reply media capability and the media resource information of self.
1001f: after streaming media server was received 200 responses, the media capability and the media resource information of storing the sip terminal that carries in this response in this locality were replied ACK message and are given sip terminal, and this sip terminal of notice door management server is a presence;
1001g: streaming media server sends BYE message to sip terminal, finishes current calling.
Wherein, no matter sip terminal is presence or off-line state, and REGISTER message all is timed sending, among the 1001d, if the REGISTER message that streaming media server is received sends when being the sip terminal presence, then streaming media server is not initiated to the calling of sip terminal.
The transmission cycle of REGISTER message can be set to different values as required.Further, if surpass this transmission cycle, streaming media server is not also received the REGISTER message that sip terminal is sent, and then notifies door management server sip terminal to be in off-line state.
1002: when the streaming media resource relevant information that the user provides according to the door management server, when selecting sip terminal request playing stream media, the request that streaming media server reception user's DST PLAYER is sent.
Detailed process and 202a～202d are similar, and difference only is that with the RTSP terminal substitution be sip terminal, and all the other handling processes are all identical, repeat no more herein.
1003: whether being connected between streaming media server judges and the sip terminal exists, if exist, then carries out 1004; Otherwise, carry out 1005;
1004: the Streaming Media from sip terminal that streaming media server will receive is transmitted to DST PLAYER, plays to the user by DST PLAYER, and flow process finishes.
Detailed process and 204a～204d are similar, and difference only is that with the RTSP terminal substitution be sip terminal, and all the other handling processes are all identical, repeat no more herein.
Wherein, if there are a plurality of users to visit this sip terminal simultaneously, then streaming media server is transmitted respectively with regard to duplicate portion for each user after.
1005: streaming media server is established to the connection of this sip terminal earlier, and the Streaming Media from sip terminal that will receive then is transmitted to DST PLAYER, plays to the user by DST PLAYER, and flow process finishes.
Referring to Figure 12, streaming media server connects and to transmit the process of Media Stream specific as follows:
1005a: DST PLAYER sends SETUP message to streaming media server;
1005b: after streaming media server is received, send INVITE to sip terminal, the medium that request is established to this sip terminal connect;
After the 1005c:SIP terminal is received INVITE, reply 100 and 180 responses and give streaming media server;
The 1005d:SIP terminal automatic answering is replied 200 responses and is given streaming media server;
1005e: after streaming media server is received above-mentioned response, send ACK message to sip terminal, set up to the connection of sip terminal thereby finish streaming media server, sip terminal begins to send medium and flows to streaming media server after receiving ACK message;
1005f: streaming media server is replied 200 responses and is given DST PLAYER, thereby sets up the connection of playing DST PLAYER;
1005g: DST PLAYER sends PLAY message to streaming media server, the media resource of request visit sip terminal;
1005h: after streaming media server is received PLAY message, reply 200 responses and give DST PLAYER, and the Media Stream of receiving from sip terminal is transmitted to DST PLAYER, play to the user after DST PLAYER is received.
In the said method that present embodiment provides, further, after DST PLAYER is given user's media stream, can also comprise:
If streaming media server receives the time-out request that DST PLAYER sends, the Streaming Media that then stops forwarding self terminal is to DST PLAYER, and being connected between maintenance and the terminal.Detailed process and 701～702 similar, difference only is that with the RTSP terminal substitution be sip terminal, remaining handling process is all identical, repeats no more herein.
In the present embodiment, if suspending, the user watches, and streaming media server stops forwarding after medium flow to DST PLAYER, if the user recovers to watch, then streaming media server recovers again to transmit from the Media Stream of sip terminal and gives DST PLAYER, and detailed process is similar with 801～802, distinguishes and only is that with the RTSP terminal substitution be sip terminal, remaining handling process is all identical, repeats no more herein.
In the present embodiment, further, after the user watched Streaming Media, if stop to watch, then said method can also comprise:
If streaming media server receives the playing request that stops that DST PLAYER sends, then stop to send Streaming Media to DST PLAYER, and being connected between dismounting and the DST PLAYER; Judge whether in addition other DST PLAYER at the visit sip terminal, if, then continue as other DST PLAYER service, otherwise, remove with sip terminal between be connected.Particularly, referring to Figure 13, process is as follows:
1301: when the user stopped to watch, DST PLAYER sent TEARDOWN message to streaming media server;
1302: after streaming media server is received TEARDOWN message, reply 200 responses and give DST PLAYER, discharge and being connected of DST PLAYER, and stop forwarding Media Stream from sip terminal to DST PLAYER;
1303: whether streaming media server judges also has other user to watch the media resource of this sip terminal this moment, if do not have, then sends BYE message to sip terminal;
After the 1304:SIP terminal is received BYE message, return 200 responses and give streaming media server, discharge being connected between sip terminal and the streaming media server, streaming media server disposes for above-mentioned user's the playing request that stops.
Wherein, if streaming media server judges goes out currently to also have other user watching the media resource of this sip terminal in 1303, then continue as other and watch the user of this sip terminal media resource to serve (not shown).
Embodiment 3
Referring to Figure 14, present embodiment provides a kind of streaming media server, comprising:
Request receives and sets up module 1402 with being connected, the relevant information that the terminal that provides according to the door management server as the user is provided, when selecting the terminal request playing stream media, the RTSP that reception user's DST PLAYER is sent asks, and is established to the connection of DST PLAYER;
Streaming Media forwarding module 1403, be used for by being connected between streaming media server and the terminal, and being connected between streaming media server and the DST PLAYER, the Streaming Media that comes self terminal that receives is transmitted to DST PLAYER, play to the user by DST PLAYER.
Wherein, this relevant information comprises: whether terminal is online or the like.
In the present embodiment, when terminal was the RTSP terminal, endpoint registration module 1401 can specifically comprise:
Receive and memory cell, be used to receive the ANNOUNCE message that the RTSP terminal sends, comprise the media capability information of RTSP terminal in the ANNOUNCE message, the media resource information and the media capability information of storage RTSP terminal;
First notification unit, being used to notify door management server RTSP terminal is presence.
Above-mentioned ANNOUNCE message is the timed sending of RTSP terminal, correspondingly, first notification unit also is used for after notice door management server RTSP terminal is presence, if surpass the default time, streaming media server is not also received the ANNOUNCE message that the RTSP terminal is sent, and then notifies door management server RTSP terminal to be in off-line state.
In the present embodiment, when terminal was sip terminal, endpoint registration module 1401 specifically comprised:
Receiving element is used to receive the REGISTER message that sip terminal is sent;
Call out and memory cell, be used for after receiving element is received REGISTER message, during first REGISTER message that if this REGISTER message is sip terminal to be sent under off-line state, the calling SIP terminal, and the media capability information of the sip terminal of reception sip terminal answer, the media resource information and the media capability information of storage sip terminal;
Second notification unit, being used to notify door management server sip terminal is presence.
Above-mentioned REGISTER message is the sip terminal timed sending, correspondingly, second notification unit also is used for after notice door management server sip terminal is presence, if surpass the default time, streaming media server is not also received the REGISTER message that sip terminal is sent, and then notifies door management server sip terminal to be in off-line state.
In the present embodiment, request receives with being connected and sets up module 1402 and can specifically comprise:
The media information receiving element is described, the relevant information that the terminal that provides according to the door management server as the user is provided, when selecting this terminal request playing stream media, the DESCRIBE message that reception user's DST PLAYER is sent, include the URL that the door management server offers the user in this DESCRIBE message, include the sign of terminal and the term of validity of URL among the URL;
Whether authentication unit is used for determining corresponding terminal according to the sign of describing the terminal that the media information receiving element receives, and effective according to the validity verification URL that receives, if effectively, then reply the media capability information of the terminal of having stored and give DST PLAYER, otherwise, finish;
Connect and set up the unit, be used for after authentication unit is verified as effectively, being established to the connection of DST PLAYER.And, when not setting up, be established to the connection of terminal by RTSP or Session Initiation Protocol with being connected of terminal.
In the present embodiment, request receives with being connected and sets up module 1402 and can specifically comprise:
The relevant information of the terminal that provides according to the door management server as the user is provided the request receiving element, and when selecting this terminal request playing stream media, what receive that user's DST PLAYER sends sets up session SETUP message;
First player connects sets up the unit, be used for after the request receiving element is received SETUP message, if detect with terminal between existed and be connected, then reply response and give DST PLAYER, set up with DST PLAYER between be connected.
In the present embodiment, when terminal was the RTSP terminal, request received with being connected and sets up module 1402 and specifically comprise:
The RTSP terminal connects sets up the unit, be used for the SETUP message that the receiving stream media player is sent, and detect do not exist with the RTSP terminal between be connected, then send new SETUP message to the RTSP terminal, set up being connected between streaming media server and the RTSP terminal;
Second player connects sets up the unit, be used for the RTSP terminal connect set up the unit and connect after, reply response and give DST PLAYER, set up being connected between streaming media server and the DST PLAYER.
When terminal was sip terminal, request received with being connected and sets up module 1402 and specifically comprise:
Sip terminal connects sets up the unit, is used for the SETUP message that the receiving stream media player is sent, and detect do not exist with sip terminal between be connected, then by Session Initiation Protocol calling SIP terminal, set up with sip terminal between be connected;
The 3rd player connects sets up the unit, be used for sip terminal connect set up the unit and connect after, reply response and give DST PLAYER, set up with DST PLAYER between be connected.
In the present embodiment, further, request receives with being connected and sets up module 1402 and also comprise:
Connect and remove the unit, be used for after streaming media server stops to send Streaming Media, remove with DST PLAYER between be connected, and judge whether that other DST PLAYER is in access terminal in addition, if, then continue as other DST PLAYER service, otherwise, remove with terminal between be connected.
In the present embodiment, Streaming Media forwarding module 1403 also comprises;
Suspend processing unit, being used in the future, the Streaming Media of self terminal is transmitted to after the DST PLAYER, if receive the time-out request that DST PLAYER sends, the Streaming Media that then stops forwarding self terminal is to DST PLAYER, and being connected between maintenance and the terminal.
Further, Streaming Media forwarding module 1403 also comprises:
Recover processing unit, be used for stopping forwarding Streaming Media after DST PLAYER,, then begin to transmit the Streaming Media of self terminal to DST PLAYER if receive the recovery playing request that DST PLAYER sends.
In the present embodiment, if there are a plurality of users to visit above-mentioned terminal simultaneously, then streaming media server is transmitted respectively duplicate the Streaming Media of a this terminal for wherein each user after.
Embodiment 4
Referring to Figure 15, present embodiment provides a kind of and has visited the system of multiple terminal based on real time streaming transport protocol, comprising: the DST PLAYER 1504 of terminal 1501, streaming media server 1502, door management server 1503 and support RTSP agreement;
Terminal 1501 has streaming media resource, is used for to streaming media server 1502 registrations, provide streaming media resource for DST PLAYER 1504 visits by streaming media server 1502, and this terminal 1501 is RTSP terminal or Session initiation Protocol sip terminal;
Streaming media server 1502, be used for the registration of receiving terminal 1501 in advance, the streaming media resource relevant information of storage terminal 1501, and notice door management server 1503 terminals 1501 are presence, the relevant information of the terminal 1501 that provides according to door management server 1503 as the user, when selecting terminal 1501 request playing stream medias, the request that reception user's DST PLAYER 1504 is sent, by with terminal 1501 between be connected, and with DST PLAYER 1504 between be connected, the Streaming Media that comes self terminal 1501 that receives is transmitted to DST PLAYER 1504;
Door management server 1503, be used for presence information from streaming media server receiving terminal 1501, and the relevant information that terminal 1501 is provided is to the user, and when the user selected terminal 1501 request playing stream medias, the access address that generates terminal 1501 was given the user; Particularly, this access address is the URL among the said method embodiment, repeats no more herein;
DST PLAYER 1504, the relevant information that the terminal 1501 that provides according to door management server 1503 as the user is provided, when selecting terminal 1501 request playing stream medias, send request to streaming media server 1502, and give the user the streaming media playing that the streaming media server 1502 that receives returns.
Wherein, streaming media server 1502 also is used for after notice door management server 1503 terminals 1501 are in line states, if when not receiving the message of self terminal 1501 above the default time, notice door management server 1503 terminals 1501 are in off-line state; Correspondingly, door management server 1503 also is used for from the off-line state information of streaming media server 1502 receiving terminals 1501.
The technique scheme that the embodiment of the invention provides based on existing public RTSP and Session Initiation Protocol, by some simple equipment, makes the DST PLAYER of popularizing at present can visit the media resource of other numerous terminals.To be simple and easy to the DST PLAYER of usefulness, connect, realized that DST PLAYER visits the media resource of these terminals in real time, be convenient for people to use, effectively utilized the existing resource of network with above-mentioned RTSP terminal and sip terminal.The present invention supports a plurality of DST PLAYERs to watch same terminal simultaneously.
The all or part of of the technique scheme that the embodiment of the invention provides can be finished by the relevant hardware of program command, described program can be stored in the storage medium that can read, and this storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (26)
1, a kind ofly visit the method for multiple terminal, it is characterized in that described method comprises based on real time streaming transport protocol:
Streaming media server is accepted the registration of the terminal of streaming media resource in advance, store the streaming media resource relevant information of described terminal, and the described terminal of notice door management server is a presence, and described terminal is real time streaming transport protocol RTSP terminal or Session initiation Protocol sip terminal;
The relevant information of the described terminal that provides according to described door management server as the user, when selecting described terminal request playing stream media, described streaming media server receives the request that described user's DST PLAYER is sent, and described DST PLAYER is supported the RTSP agreement;
Described streaming media server by with described terminal between be connected, and with described DST PLAYER between be connected, the Streaming Media from described terminal that receives is transmitted to described DST PLAYER, plays to described user by described DST PLAYER.
2, method according to claim 1, it is characterized in that described streaming media server is accepted the registration of the terminal of streaming media resource in advance, store the streaming media resource relevant information of described terminal, and the described terminal of notice door management server is a presence, specifically comprises:
Streaming media server receives the declaration ability ANNOUNCE message that the RTSP terminal sends, and comprises the media capability information of described RTSP terminal in the described ANNOUNCE message;
Described streaming media server is stored the media resource information and the media capability information of described RTSP terminal, and the described RTSP terminal of notice door management server is a presence.
3, method according to claim 2, it is characterized in that, described ANNOUNCE message is the timed sending of described RTSP terminal, described streaming media server is stored the media resource information and the media capability information of described RTSP terminal, and notice door management server described RTSP terminal is after the presence, also comprises:
If surpass the default time, described streaming media server is not also received the ANNOUNCE message that described RTSP terminal is sent, and then notifies the described RTSP terminal of described door management server to be in off-line state.
4, method according to claim 1, it is characterized in that described streaming media server is accepted the registration of the terminal of streaming media resource in advance, store the streaming media resource relevant information of described terminal, and the described terminal of notice door management server is a presence, specifically comprises:
When registering REGISTER message the first time that streaming media server reception Session initiation Protocol sip terminal is sent under off-line state;
Described streaming media server is called out described sip terminal, and receive the media capability information of the described sip terminal that described sip terminal replys, store the media resource information and the media capability information of described sip terminal, and the described sip terminal of notice door management server is a presence.
5, method according to claim 4, it is characterized in that, described REGISTER message is described sip terminal timed sending, described streaming media server is stored the media resource information and the media capability information of described sip terminal, and notice door management server described sip terminal is after the presence, also comprises:
If surpass the default time, described streaming media server is not also received the REGISTER message that described sip terminal is sent, and then notifies the described sip terminal of described door management server to be in off-line state.
6, method according to claim 1, it is characterized in that, the relevant information of the described terminal that provides according to described door management server as the user, when selecting described terminal request playing stream media, described streaming media server receives the request that described user's DST PLAYER is sent, and specifically comprises:
The relevant information of the described terminal that provides according to described door management server as the user, when selecting described terminal request playing stream media, described streaming media server receives the description medium DESCRIBE message that described user's DST PLAYER is sent, include the uniform resource position mark URL that described door management server offers described user in the described DESCRIBE message, include the sign of described terminal and the term of validity of described URL among the described URL;
Described streaming media server is determined corresponding terminal according to the sign of described terminal, and whether effective according to the described URL of described validity verification, if effectively, then reply the media capability information of the described terminal of having known and give described DST PLAYER, otherwise, finish.
7, method according to claim 1, it is characterized in that, described streaming media server by with described terminal between be connected, and with described DST PLAYER between be connected, the Streaming Media from described terminal that receives is transmitted to described DST PLAYER, play to described user by described DST PLAYER, specifically comprise:
Described streaming media server receives that described DST PLAYER sends sets up session SETUP message, and detect with described terminal between existed and be connected, reply response and give described DST PLAYER, set up with described DST PLAYER between be connected;
Described streaming media server is transmitted to described DST PLAYER with the Streaming Media from described terminal that receives after receiving the playing request of described DST PLAYER transmission, plays to described user by described DST PLAYER.
8, method according to claim 1, it is characterized in that, described terminal is the RTSP terminal, described streaming media server by with described terminal between be connected, and with described DST PLAYER between be connected, the Streaming Media from described terminal that receives is transmitted to described DST PLAYER, plays to described user, specifically comprise by described DST PLAYER:
Described streaming media server receives that described DST PLAYER sends sets up session SETUP message, and detect do not exist with described RTSP terminal between be connected, then send new SETUP message to described RTSP terminal, set up being connected between described streaming media server and the RTSP terminal;
Reply response and give described DST PLAYER, set up being connected between described streaming media server and the DST PLAYER;
After receiving the playing request that described DST PLAYER sends, the Streaming Media of receiving from described RTSP terminal is transmitted to described DST PLAYER, plays to described user by described DST PLAYER.
9, method according to claim 1, it is characterized in that, described terminal is a sip terminal, described streaming media server by with described terminal between be connected, and with described DST PLAYER between be connected, the Streaming Media from described terminal that receives is transmitted to described DST PLAYER, plays to described user, specifically comprise by described DST PLAYER:
Described streaming media server receives that described DST PLAYER sends sets up session SETUP message, and detect do not exist with described sip terminal between be connected, then call out described sip terminal by Session Initiation Protocol, set up with described sip terminal between be connected;
Reply response and give described DST PLAYER, set up with described DST PLAYER between be connected;
After receiving the playing request that described DST PLAYER sends, the Streaming Media of receiving from described sip terminal is transmitted to described DST PLAYER, plays to described user by described DST PLAYER.
10, method according to claim 1 is characterized in that, the Streaming Media from described terminal that receives is transmitted to described DST PLAYER, is played to after the described user by described DST PLAYER, also comprises:
If described streaming media server receives the time-out request that described DST PLAYER sends, then stop forwarding Streaming Media from described terminal to described DST PLAYER, and being connected between maintenance and the described terminal.
11, method according to claim 10 is characterized in that, stops forwarding Streaming Media to described DST PLAYER, and after being connected between maintenance and the described terminal, also comprises;
If described streaming media server receives the recovery playing request that described DST PLAYER sends, the Streaming Media that then begins to transmit from described terminal arrives described DST PLAYER.
12, method according to claim 1 is characterized in that, the Streaming Media from described terminal that receives is transmitted to described DST PLAYER, is played to after the described user by described DST PLAYER, also comprises:
If described streaming media server receives the playing request that stops that described DST PLAYER sends, then stop to send Streaming Media to described DST PLAYER, and being connected between dismounting and the described DST PLAYER;
Judge whether in addition other DST PLAYER in the described terminal of visit, if, then continue as described other DST PLAYER service, otherwise, remove with described terminal between be connected.
13, a kind of streaming media server is characterized in that, described streaming media server comprises:
The endpoint registration module, be used for accepting in advance the registration of the terminal of streaming media resource, store the streaming media resource relevant information of described terminal, and notice door management server described terminal is presence, described terminal is real time streaming transport protocol RTSP terminal or Session initiation Protocol sip terminal;
Request receives and sets up module with being connected, the relevant information that the described terminal that provides according to described door management server as the user is provided, when selecting described terminal request playing stream media, receive the RTSP request that described user's DST PLAYER is sent, be established to the connection of described DST PLAYER;
The Streaming Media forwarding module, be used for by being connected between described streaming media server and the described terminal, and being connected between described streaming media server and the described DST PLAYER, the Streaming Media from described terminal that receives is transmitted to described DST PLAYER, plays to described user by described DST PLAYER.
14, streaming media server according to claim 13 is characterized in that, described endpoint registration module specifically comprises:
Receive and memory cell, be used to receive the declaration ability ANNOUNCE message that the RTSP terminal sends, comprise the media capability information of described RTSP terminal in the described ANNOUNCE message, store the media resource information and the media capability information of described RTSP terminal;
First notification unit, being used to notify the described RTSP terminal of door management server is presence.
15, streaming media server according to claim 14, it is characterized in that, described ANNOUNCE message is the timed sending of described RTSP terminal, described first notification unit also is used for notifying after the described RTSP terminal of described door management server is presence, if surpass the default time, described streaming media server is not also received the ANNOUNCE message that described RTSP terminal is sent, and then notifies the described RTSP terminal of described door management server to be in off-line state.
16, streaming media server according to claim 13 is characterized in that, described endpoint registration module specifically comprises:
Receiving element is used to receive the registration REGISTER message that sip terminal is sent;
Call out and memory cell, be used for after described receiving element is received described REGISTER message, during first REGISTER message that if described REGISTER message is described sip terminal to be sent under off-line state, call out described sip terminal, and receive the media capability information of the described sip terminal that described sip terminal replys, the media resource information and the media capability information of storing described sip terminal;
Second notification unit, being used to notify the described sip terminal of door management server is presence.
17, streaming media server according to claim 16, it is characterized in that, described REGISTER message is described sip terminal timed sending, described second notification unit also is used for notifying after the described sip terminal of described door management server is presence, if surpass the default time, described streaming media server is not also received the REGISTER message that described sip terminal is sent, and then notifies the described sip terminal of described door management server to be in off-line state.
18, streaming media server according to claim 13 is characterized in that, described request receives with being connected and sets up module and specifically comprise:
The media information receiving element is described, the relevant information that the described terminal that provides according to described door management server as the user is provided, when selecting described terminal request playing stream media, receive the description medium DESCRIBE message that described user's DST PLAYER is sent, include the uniform resource position mark URL that described door management server offers described user in the described DESCRIBE message, include the sign of described terminal and the term of validity of described URL among the described URL;
Authentication unit, the sign that is used for the described terminal received according to described description media information receiving element is determined corresponding terminal, and it is whether effective according to the described URL of described validity verification that receives, if effectively, then reply the media capability information of the described terminal of having stored and give described DST PLAYER, otherwise, finish;
Connect and set up the unit, be used for after described authentication unit is verified as effectively, being established to the connection of described DST PLAYER.
19, streaming media server according to claim 13 is characterized in that, described request receives with being connected and sets up module and specifically comprise:
The relevant information of the described terminal that provides according to described door management server as the user is provided the request receiving element, and when selecting described terminal request playing stream media, what receive that described user's DST PLAYER sends sets up session SETUP message;
First player connects sets up the unit, be used for after the described request receiving element is received described SETUP message, if detect with described terminal between existed and be connected, then reply response and give described DST PLAYER, set up with described DST PLAYER between be connected.
20, streaming media server according to claim 13 is characterized in that, described terminal is the RTSP terminal, and described request receives with being connected and sets up module and specifically comprise:
The RTSP terminal connects sets up the unit, be used to receive that described DST PLAYER sends sets up session SETUP message, and detect do not exist with described RTSP terminal between be connected, then send new SETUP message to described RTSP terminal, set up being connected between described streaming media server and the RTSP terminal;
Second player connects sets up the unit, be used for described RTSP terminal connect set up the unit and connect after, reply response and give described DST PLAYER, set up being connected between described streaming media server and the DST PLAYER.
21, streaming media server according to claim 13 is characterized in that, described terminal is a sip terminal, and described request receives with being connected and sets up module and specifically comprise:
Sip terminal connects sets up the unit, be used to receive that described DST PLAYER sends sets up session SETUP message, and detect do not exist with described sip terminal between be connected, then call out described sip terminal by Session Initiation Protocol, set up with described sip terminal between be connected;
The 3rd player connects sets up the unit, be used for described sip terminal connect set up the unit and connect after, reply response and give described DST PLAYER, set up with described DST PLAYER between be connected.
22, streaming media server according to claim 13 is characterized in that, described request receives with being connected and sets up module and also comprise:
Connect and remove the unit, be used for after described streaming media server stops to send Streaming Media, remove with described DST PLAYER between be connected, and judge whether that other DST PLAYER is in the described terminal of visit in addition, if, then continue as described other DST PLAYER service, otherwise, remove with described terminal between be connected.
23, streaming media server according to claim 13 is characterized in that, described Streaming Media forwarding module also comprises;
Suspend processing unit, be used for to be transmitted to after the described DST PLAYER from the Streaming Media of described terminal, if receive the time-out request that described DST PLAYER sends, then stop forwarding from the Streaming Media of described terminal to described DST PLAYER, and being connected between maintenance and the described terminal.
24, streaming media server according to claim 23 is characterized in that, described Streaming Media forwarding module also comprises:
Recover processing unit, be used for,, then begin to transmit Streaming Media from described terminal to described DST PLAYER if receive the recovery playing request that described DST PLAYER sends stopping forwarding Streaming Media after the described DST PLAYER.
25, a kind ofly visit the system of multiple terminal, it is characterized in that described system comprises: terminal, streaming media server, door management server and support the DST PLAYER of real time streaming transport protocol RTSP agreement based on real time streaming transport protocol;
Described terminal has streaming media resource, is used for to described streaming media server registration, provide described streaming media resource for described DST PLAYER visit by described streaming media server, and described terminal is RTSP terminal or Session initiation Protocol sip terminal;
Described streaming media server, be used for accepting in advance the registration of described terminal, store the streaming media resource relevant information of described terminal, and notifying the described terminal of described door management server is presence, the relevant information of the described terminal that provides according to described door management server as the user, when selecting described terminal request playing stream media, receive the request that described user's DST PLAYER is sent, by with described terminal between be connected, and with described DST PLAYER between be connected, the Streaming Media from described terminal that receives is transmitted to described DST PLAYER;
Described door management server, be used for receiving the presence information of described terminal from described streaming media server, and the relevant information that described terminal is provided is to described user, and when described user selected described terminal request playing stream media, the access address that generates described terminal was given described user;
Described DST PLAYER, the relevant information that the described terminal that provides according to described door management server as described user is provided, when selecting described terminal request playing stream media, send request to described streaming media server, and the streaming media playing that the described streaming media server that will receive returns is given described user.
26, system according to claim 25, it is characterized in that, described streaming media server also is used for after notifying the described terminal of described door management server to be in presence, if surpass the default time when not receiving message from described terminal, notify the described terminal of described door management server to be in off-line state;
Described door management server also is used for receiving from described streaming media server the off-line state information of described terminal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910207233A CN101674317A (en) | 2009-10-13 | 2009-10-13 | RTSP-based method for accessing a plurality of terminals, streaming media server and system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910207233A CN101674317A (en) | 2009-10-13 | 2009-10-13 | RTSP-based method for accessing a plurality of terminals, streaming media server and system thereof |
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| CN101674317A true CN101674317A (en) | 2010-03-17 |
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| CN200910207233A Pending CN101674317A (en) | 2009-10-13 | 2009-10-13 | RTSP-based method for accessing a plurality of terminals, streaming media server and system thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104618690A (en) * | 2015-01-29 | 2015-05-13 | 广东迅通科技股份有限公司 | Method and system for real-time on-demand and historical playback of high-definition video |
| CN104994445A (en) * | 2015-06-30 | 2015-10-21 | 广东欧珀移动通信有限公司 | Method and device for playing multi-media files |
| CN105450994A (en) * | 2015-12-03 | 2016-03-30 | 河北远东通信系统工程有限公司 | Video commanding and dispatching system and method based on RTSP |
| CN112511528A (en) * | 2020-11-26 | 2021-03-16 | 中移（杭州）信息技术有限公司 | Streaming media distribution method, system, server and storage medium |
-
2009
- 2009-10-13 CN CN200910207233A patent/CN101674317A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104618690A (en) * | 2015-01-29 | 2015-05-13 | 广东迅通科技股份有限公司 | Method and system for real-time on-demand and historical playback of high-definition video |
| CN104994445A (en) * | 2015-06-30 | 2015-10-21 | 广东欧珀移动通信有限公司 | Method and device for playing multi-media files |
| CN104994445B (en) * | 2015-06-30 | 2018-09-11 | 广东欧珀移动通信有限公司 | The playback method and device of multimedia file |
| CN105450994A (en) * | 2015-12-03 | 2016-03-30 | 河北远东通信系统工程有限公司 | Video commanding and dispatching system and method based on RTSP |
| CN105450994B (en) * | 2015-12-03 | 2018-09-11 | 河北远东通信系统工程有限公司 | A kind of video directing and scheduling system and method based on RTSP agreements |
| CN112511528A (en) * | 2020-11-26 | 2021-03-16 | 中移（杭州）信息技术有限公司 | Streaming media distribution method, system, server and storage medium |
| CN112511528B (en) * | 2020-11-26 | 2022-10-11 | 中移（杭州）信息技术有限公司 | Streaming media distribution method, system, server and storage medium |
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Application publication date: 20100317 |