CN101309393B - Method and system for inter-cut video monitoring in interactive network television - Google Patents
Method and system for inter-cut video monitoring in interactive network television Download PDFInfo
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- CN101309393B CN101309393B CN2007100993620A CN200710099362A CN101309393B CN 101309393 B CN101309393 B CN 101309393B CN 2007100993620 A CN2007100993620 A CN 2007100993620A CN 200710099362 A CN200710099362 A CN 200710099362A CN 101309393 B CN101309393 B CN 101309393B
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Abstract
The invention discloses a method for inter-cutting video monitor in IPTV. The IPTV system comprises a stream media service platform, a stream media sever and a video monitoring front end. The method comprises the steps that firstly, the video monitoring front end triggers the video monitoring to report an alarm and sends video monitoring alarm information to the stream media service platform; secondly, the video monitoring alarm information is sent to the stream media sever by the stream media service platform; thirdly, the video monitoring alarm information is transferred to a user terminal by the stream media sever through the media controlling channel of the IPTV, and the relay of the video monitoring code stream to the video monitoring front end is set up; fourthly, after a switching command from the user terminal is received, the video monitoring code stream is sent to the user terminal by the stream media sever through the media controlling channel of the IPTV. The invention also provides a system for inter-cutting video monitor in IPTV accordingly. Therefore, by adopting the method and the system, the real time quick switching between the IPTV service and the video monitoring service can be realized.
Description
Technical field
The invention belongs to IPTV (Internet Protocol Television, IPTV) field, relate in particular to a kind of in IPTV the method and system of inter-cut video monitoring.
Background technology
IPTV integrates multiple technologies such as the Internet, multimedia, communication, and the brand-new technology of interactive digital media services is provided.IPTV mainly provides and comprises video request program (Video on Demand, VOD), live telecast (Television, TV), time-moving television basic business and interactive value-added services such as video communication, information browse, interaction entertainment and recreation such as (Time-shifted TV).It has thoroughly changed the characteristics of traditional tv One-to-All Broadcast and the pattern that people watch TV, not only can allow the user enjoy traditional live telecast program, and by network interaction, gives user's more freedom and initiative.The IPTV basic business is to traditional tv live succession and improvement, can allow operator obtain the support of original vast TV user.After the certain scale customer group was won in the IPTV basic business at operation initial stage, interactive value-added service meeting increased gradually.
Along with the progress of signal processing technology, video and image processing techniques have obtained developing rapidly, and progressively are penetrated in our social life simultaneously, and a large amount of in recent years video surveillance applications occur.But, thereby the Network Video Surveillance service needed changes development cost and operation maintenance cost that current video monitoring system structure of application reduces each application significantly, thereby accelerates generation that new professional specialized exploitation promotes new application, popularize.The many technology that adopt in the IPTV business, particularly exchange of media technology, Streaming Media distribution technology, distributed file system technology, encryption and intellectual property right management technology and endpoint registration, user's registration, service log-on, content registration and administrative skill can be reused in the Network Video Surveillance business.Therefore in IPTV technology ripe gradually today, become the next new business of bandwidth operator based on the Network Video Surveillance of IPTV.
Key based on the video monitoring value-added service of IPTV development is to improve user's core status, strengthens user's degree of participation, satisfies user's personalization, facilitation, interactively demand.Not having relatedly but at present IPTV is professional with video monitoring service, is separated from one another and can not switch mutually in real time.When the IPTV business switched to monitoring business, terminal need withdraw from the IPTV business and enter video monitoring service then, removed on the one hand that to be connected time delay bigger with newly-built medium, had reduced professional switch speed; On the other hand, the user can't turn back to IPTV service disconnection point from video monitoring service.Also there is similar problem during from video monitoring service incision IPTV business.Therefore, existing IPTV technology can not satisfy the requirement that the user takes into account IPTV business and video monitoring at one time.
Summary of the invention
At above-mentioned defective, the object of the present invention is to provide a kind of in IPTV the method and system of inter-cut video monitoring, to realize the professional switching real-time with video monitoring service of IPTV.
To achieve these goals, the invention provides a kind of in IPTV the method for inter-cut video monitoring, the system of described IPTV comprises streaming media service platform, streaming media server and video monitoring front-end, and described method comprises the steps:
A, video monitoring front-end trigger the video monitoring alarm, send the video monitoring warning information to described streaming media service platform;
B, streaming media service platform send to streaming media server with described video monitoring warning information;
C, streaming media server transfer to user terminal by the media control channel of IPTV with described video monitoring warning information, and are established to the relaying of the video monitoring code stream of video monitoring front-end;
D, receive the switching command of user terminal after, streaming media server switches to video monitoring service with described user terminal from interactive network TV service, and the media data passage by IPTV sends the video monitoring code stream to user terminal.
Also comprise before the method according to this invention, described steps A:
User terminal custom video monitoring business, and at streaming media service platform registration video monitoring service customized information; And/or
The user terminal requests interactive network TV service, and between streaming media server and user terminal, set up and maintenance media control channel and media data passage.
The method according to this invention, described step B comprises:
B1, streaming media service platform are inquired about its corresponding video monitoring service customized information to obtain the user terminal tabulation according to described video monitoring warning information;
B2, streaming media service platform are further inquired about the presence of user terminal in the described user terminal tabulation;
B3, streaming media service platform send described video monitoring warning information to the streaming media server of online user's terminal.
The method according to this invention, the streaming media service platform also sends to the media relays request of video monitoring front-end among the described step B to streaming media server;
Streaming media server is established to the relaying of the video monitoring code stream of video monitoring front-end according to this media relays request among the described step C.
The method according to this invention, the media control channel of described IPTV adopts real-time streaming protocol, and described media data passage adopts RTP;
Define and send the monitoring alarm message header by the expansion real-time streaming protocol among the described step C, so that the video monitoring warning information is transferred to user terminal by described media control channel.
The method according to this invention, described step D further comprises:
After D1, user terminal are received the video monitoring warning information, return to streaming media server and to ignore the switching command that alarm command or requirement switch to video monitoring service;
D2, if receive the switching command of user terminal, streaming media server is transferred to this user terminal the service queue of video monitoring session from the service queue of IPTV session;
D3, streaming media server send the video monitoring code stream by described media data passage to user terminal.
The method according to this invention, described step D2 further comprises:
After D21, streaming media server are received the switching command of user terminal, the media description information of video monitoring code stream is sent to user terminal;
D22, user terminal are preserved the media description information of described video monitoring code stream, and return correctly and reply;
After D23, streaming media server are received and correctly replied, this user terminal is transferred to the service queue of video monitoring session from the service queue of IPTV session;
Described step D3 also comprises, after user terminal is received the video monitoring code stream, adjusts decoding parametric according to the media description information of described video monitoring code stream, the decoding of beginning video monitoring code stream.
The method according to this invention also comprises after the described step D:
E, user terminal send the IPTV recovery request to streaming media server, and streaming media server stops the transmission of described video monitoring code stream, and send the IPTV code stream to user terminal.
The method according to this invention after user terminal is received the video monitoring code stream among the described step D, is preserved the point of interruption temporal information of IPTV;
User terminal carries point of interruption temporal information in the described step e in the IPTV recovery request that streaming media server sends, and streaming media server navigates to the point of interruption to continue to send the IPTV code stream according to described point of interruption temporal information.
The method according to this invention after user terminal is received the video monitoring code stream among the described step D, is further preserved the media description information of IPTV;
After user terminal is received the IPTV code stream in the described step e, adjust decoding parametric, the decoding of beginning IPTV code stream according to the media description information of the IPTV of preserving.
The method according to this invention, described streaming media server is provided with timeout mechanism, when IPTV session or the idle scheduled duration that surpasses of video monitoring session, finishes IPTV session or video monitoring session.
In order to realize purpose of the present invention better, the present invention also provide a kind of in IPTV the system of inter-cut video monitoring, include:
Video monitoring front-end is used to trigger the video monitoring alarm, and co-current flow media business platform sends the video monitoring warning information;
The streaming media service platform is used for described video monitoring warning information is sent to streaming media server;
Streaming media server, be used for the video monitoring warning information being transferred to user terminal by the media control channel of IPTV, be established to the relaying of the video monitoring code stream of video monitoring front-end simultaneously, behind the switching command of receiving user terminal, streaming media server switches to video monitoring service with described user terminal from interactive network TV service, and sends the video monitoring code stream by the media data passage of IPTV to user terminal.
In the present invention, after video monitoring front-end triggers alarm, streaming media server is transmitted to user terminal by original IPTV media control channel with the video monitoring warning information, behind the switching command of receiving user terminal, streaming media server sends to user terminal by original IPTV media data passage with the video monitoring code stream again.Whereby, the present invention has realized organically blending of IPTV business and video monitoring service, and the media channel that utilizes the IPTV business to set up is realized the quick switching of IPTV business and video monitoring service, saved and teared down and built the time overhead that medium connect, and effectively shortened switching delay.In addition, the present invention carries out in the process at video monitoring service, and user terminal can be selected to return original IPTV business at any time, continues the service of former IPTV service disconnection point.
Description of drawings
Fig. 1 be provided by the present invention in IPTV the system construction drawing of inter-cut video monitoring;
Fig. 2 be provided by the present invention in IPTV the method flow diagram of inter-cut video monitoring;
The interacting message figure of Fig. 3 streaming media server and user terminal when to be that IPTV is professional among the present invention switch with video monitoring service;
Fig. 4 is the implementation method flow chart of an embodiment provided by the present invention;
The interacting message figure of Fig. 5 streaming media server and user terminal when to be that IPTV is professional in the one embodiment of the invention switch with video monitoring service.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Basic thought of the present invention is: video monitoring front-end triggers the video monitoring alarm, and notification streams media business platform; The streaming media service platform sends to streaming media server with the video monitoring warning information, and streaming media server is transmitted described video monitoring warning information to user terminal, and sets up the relaying of video monitoring code stream; After receiving that user terminal switches to the instruction of video monitoring service, streaming media server utilizes the media data passage of having set up in the IPTV business to send the video monitoring code stream to user terminal, has realized the IPTV business of user terminal and cutting mutually real-time of video monitoring service.
Fig. 1 show provided by the present invention in IPTV the system configuration of inter-cut video monitoring, be described below:
Video monitoring cut system 1 comprises user terminal 30, stream media service node 20 and video monitoring front-end 101 and IPTV head-end system 102; Wherein, described stream media service node 20 comprises streaming media service platform 201 and streaming media server 202.
Video monitoring front-end 101 is used to gather the video monitoring source of media, and trigger video monitoring and alarm, and video monitoring front-end 101 has comprised the equipment of video camera, The Cloud Terrace, decoder, video server, alarm probe and various data acquisition functions, be distributed widely in public situation or industry inside fixing and that move, final access carrier network.IPTV head-end system 102 is positioned at the IPTV system foremost, is used for the original media program source is received the transcoding processing of gathering and encode, so that programme televised live source and the request program source that meets the IPTV call format to be provided.
Stream media service node 20 is deployed in the central site network node of operator.Streaming media service platform 201 provides the operation support and the service application of IPTV business and video monitoring service.Operation support comprises user management, service provider (Service Provider, SP) management, service management, Certificate Authority, charging payment and clearing, plateform system management, statistical analysis, set-top box management, digital copyright management (Digital RightManagement, DRM) and the various interface management.Service application comprise contents processing, Content Management, valut system, valued added applications management, program request, live, video monitoring streaming media is professional, electronic program list and value-added services such as communication service, recreation and information service.202 of streaming media servers are used to satisfy jumbo user video service request.
Fig. 2 be provided by the present invention in IPTV the method flow diagram of inter-cut video monitoring, below in conjunction with Fig. 1 the present invention is further described.
Among the step S201, video monitoring front-end triggers the video monitoring alarm, sends the video monitoring warning information to described streaming media service platform.
Among the step S202, the streaming media service platform sends to streaming media server with described video monitoring warning information.
In one embodiment of the invention, streaming media service platform 201 is inquired about its corresponding video monitoring service customized information to obtain the user terminal tabulation according to described video monitoring warning information.Afterwards, streaming media service platform 201 is according to this user terminal further inquiring user terminal 30 online service states of tabulating.Streaming media service platform 201 sends described video monitoring warning information to the streaming media server 202 that service is provided for online user's terminal 30.
Among the step S203, streaming media server transfers to user terminal by the media control channel of IPTV with described video monitoring warning information, and is established to the relaying of the video monitoring code stream of video monitoring front-end.
In one embodiment of the invention, if streaming media server 202 is established to video monitoring front-end 101 and does not set up media channel, then streaming media server 202 is established to the media channel of video monitoring front-end 101; Utilize the media control channel of IPTV business to give user terminal 30 simultaneously with the video monitoring alarm information noticing.
Streaming media service platform 201 also sends to the media relays request of video monitoring front-end 101 to streaming media server 202; Streaming media server 202 is established to the relaying of the video monitoring code stream of video monitoring front-end 101 according to this media relays request.
Among the step S204, receive the switching command of user terminal after, the media data passage of streaming media server by IPTV sends the video monitoring code stream to user terminal.
In one embodiment of the invention, after user terminal 30 is received the video monitoring warning information of streaming media server 202 forwardings, can select to ignore alarm or enter video monitoring service.If select the latter, streaming media server 202 sends to user terminal 30 with the codec parameters of video monitoring.After receiving that user terminal 30 is correctly replied, streaming media server 202 beginnings send the video monitoring code stream to user terminal 30.
In one embodiment of the invention, also comprise before the described step S201: user terminal custom video monitoring business, and at streaming media service platform registration video monitoring service customized information.Here, the user can subscribe interested video monitoring point by user terminal 30 or other modes to streaming media service platform 201 according to hobby.
Also comprise before the described step S201: user terminal requests IPTV business, and between streaming media server and user terminal, set up and keep media control channel and the media data passage of IPTV.IPTV business described in the present invention is preferably the IPTV basic business, comprises basic businesses such as video request program, live telecast, time-moving television.
In one embodiment of the invention, after the described step S204, further comprise:
Step S205, user terminal sends the IPTV recovery request to streaming media server, and streaming media server stops the transmission of described video monitoring code stream, and sends the IPTV code stream to user terminal.
When the user terminal 30 of accepting video monitoring service is selected to return original Internet television services, user terminal 30 sends the IPTV recovery request to streaming media server 202, and adjust decoder according to the former codec parameters of buffer memory, streaming media server 202 stops the transmission of video monitoring code stream, continues former IPTV service disconnection point and sends the IPTV code stream.
Therefore, in the present invention, if user terminal 30 is behind the video monitoring warning information that receives streaming media server 202 forwardings, selection enters video monitoring service, the interacting message of streaming media server 202 and user terminal 30 was described below as shown in Figure 3 when then the IPTV business switched with video monitoring service among the present invention:
1, the video monitoring warning information of streaming media server 202 receiver, video front monitoring front-ends 101 triggerings.
2, streaming media server 202 is transmitted the video monitoring warning information that video monitoring front-end 101 triggers to user terminal 30, and user terminal 30 selects to enter video monitoring service.
3, streaming media server 202 is cut into video monitoring service with user terminal 30.
4, streaming media server 202 is adjusted decoding parametric to the media description information that user terminal 30 sends the video monitoring code stream.
5, streaming media server 202 sends the monitoring code stream to user terminal 30, and user terminal 30 adopts media description information to adjust decoding parametric, the decoding of beginning video monitoring code stream.
6, user terminal 30 requests turn back to the IPTV business.
7, streaming media server 202 switches to original IPTV business with user terminal 30 from video monitoring service.
Fig. 4 shows the implementation method flow chart of a specific embodiment provided by the invention, is described below:
Among the step S401, user terminal 30 request IPTV business.User terminal 30 is followed the IPTV standard to the professional detailed processes of streaming media service platform 201 request IPTV, foundation and keep a media control channel and some media data passages between streaming media server 202 and the IPTV user terminal 30 generally speaking.The media control channel employing real-time streaming protocol of described IPTV (Real-time Streaming Protocol, RTSP), and described media data passage employing RTP (Real-time Transport Protocol, RTP).
In an enforcement of the present invention, the medium control protocol of the set-top box-TV 302 of user terminal 30 adopts the RTSP agreement, and media transmission protocol adopts Real-time Transport Protocol.Before user terminal 30 request IPTV business, the user is by user terminal 30 predetermined interested control points, and (Global unique identifier GUID) is JK100000000000011311 to the GUID of control point.The user uses the TV business of set-top box-television set 302 request IPTV, streaming media service platform 201 is responsible for the request of set-top box-television set 302 is redirected to streaming media server 202 and logging machine top box-television set 302 online information, streaming media server 202 provides streaming media service, and streaming media server 202 is set up with set-top box-television set 302 and kept a media control channel and some media data passages in this process.
Among the step S402, video monitoring front-end triggers alarm, notification streams media business platform.In one embodiment of the invention, when powering on, video monitoring front-end 101, enters monitor state to 201 registrations of streaming media service platform.The video monitoring point JK100000000000011311 alarm triggered of video monitoring front-end 101 sends to streaming media service platform 201 with the video monitoring warning information.
Among the step S403, the streaming media service platform is inquired about its corresponding video monitoring service customized information to obtain the user terminal tabulation according to described video monitoring warning information.
In one embodiment of the invention, the video monitoring warning information that the described user terminal 30 of streaming media service platform 201 retrieve video front monitoring front-ends 101 is subscribed to obtains meeting the described user terminal tabulation of subscribing to this video monitoring warning information.
Among the step S404, the streaming media service platform is further inquired about the presence of user terminal in the described user list.
Streaming media service platform 201 is searched corresponding online user's terminal 30 according to described user terminal tabulation, and transmits described video monitoring warning information to the streaming media server 202 that service is provided for described online user's terminal 30.In one embodiment of the invention, the user terminal tabulation of streaming media service platform 201 inquiry video monitoring point JK100000000000011311, contrast alarm type and rank, screening meets the user list of alarm notification condition, further the online information of inquiring user terminal 30.
Among the step S405, the streaming media service platform sends described video monitoring warning information to the streaming media server of online user's terminal.
In one embodiment of the invention, the streaming media server 202 of 201 pairs of online user terminal 30 correspondences of steaming media platform sends media relays request and the alarm forwarding request of video monitoring point JK100000000000011311.
Among the step S406, streaming media server transfers to user terminal by the media control channel of IPTV with described video monitoring warning information, and is established to the relaying of the video monitoring code stream of video monitoring front-end.
After streaming media server 202 is received the video monitoring warning information of streaming media service platform 201 transmissions, it is transmitted to user terminal 30, and check whether be established to video monitoring front-end 101, perhaps the medium of higher level's supervision relay server connect, if do not have then the connection of newly-built medium.Media server is transmitted the video monitoring warning information by the described media control channel that step S401 sets up to user terminal 30.
In one embodiment of the invention, streaming media server 202 connects according to the medium that media relays request specified message is established to control point JK100000000000011311, sets up the service request that the session of JK100000000000011311 relaying prepares to receive user terminal 30.If the relaying session is idle super, the medium of then removing JK100000000000011311 connect and the relaying session.
Streaming media server 202 is transmitted the video monitoring warning information to user terminal 30, streaming media server is to the transmission of the video monitoring warning information of described online user's terminal 30 forwardings, be to define and send the monitoring alarm message header, so that the video monitoring warning information is transferred to user terminal 30 by described media control channel by definition video monitoring alarm information head (Message Header) in the standard of expansion real time streaming protocol (rtsp) and IPTV (IPTV).Described video monitoring alarm information head comprises information such as the GUID of video monitoring front-end 101 and alarm level.Streaming media server 202 video in SET_PARAMTER request that sends to user terminal 30 or OPTION request carries the monitoring alarm message header.The interacting message of streaming media server 202 and user terminal 30 as shown in Figure 5 when the IPTV business switched with video monitoring service in the one embodiment of the invention;
1, streaming media server 202 finds the RTSP of user terminal 30 to connect according to the video monitoring warning information request of streaming media service platform 201 forwardings;
2, streaming media server 202 sends the SET_PARAMETER request to user terminal 30, request band " x-Alarm " extension header, and formal definition is as follows:
x-Alarm＝“x-Alarm”:PUName
Among the step S407, after user terminal is received the video monitoring warning information, return to streaming media server and to ignore the switching command that alarm command or requirement switch to video monitoring service.In one embodiment of the invention, online user's terminal 30 is returned this video monitoring warning information request of checking to described streaming media server 202.
With same embodiment among the step S406, user terminal 30 is presented to the user with the video monitoring warning information, selects to be provided with for it, and return user's selection result to streaming media server 202 in response message; Interacting message when streaming media server 202 switches with user terminal 30 as shown in Figure 5;
3, user's selection is converted into " x-AlarmPlay " prolate-headed value in the SET_PARAMETER response, and formal definition is as follows:
x-AlarmPlay＝“x-AlarmPlay”:yes|no
As described in following step S408～step S410, receive the switching command of user terminal 30 after, streaming media server 202 sends the video monitoring code streams by the media data passage of IPTV to user terminal 30.After user terminal 30 is received the video monitoring code stream, further preserve the media description information of IPTV.
Among the step S408, after streaming media server is received the switching command of user terminal, the media description information of video monitoring code stream is sent to user terminal.
After streaming media server 202 is received the switching command of user terminal 30, the media description information of video monitoring code stream is sent to user terminal 30, the media description information of described video monitoring code stream comprises codec parameters, transmission parameter etc.
Among the step S409, user terminal is preserved the media description information of described video monitoring code stream, and returns correctly and reply.User terminal 30 is preserved the media description information of video monitoring code stream, and transmission is correctly replied.
Among the step S410, streaming media server is transferred to this user terminal the service queue of video monitoring session from the service queue of IPTV session after receiving and correctly replying.
After streaming media server 202 is received and is replied, the point of interruption of the interactive network TV service of record active user terminal 30.This user terminal 30 is removed from the service queue of former IPTV session (Session), joined in the service queue of video monitoring session.The media data passage just set up by step S401 of video monitoring code stream is transported to user terminal 30 from streaming media server 202 like this, and user terminal 30 is received the media description information of further preserving IPTV behind the video monitoring code stream; The media description information of buffer memory IPTV, empty metadata cache, media description information according to the IPTV of preserving is adjusted decoding parametric, the decoding of beginning IPTV code stream, thus realize of the real-time switching of IPTV code stream to the video monitoring code stream; And after user terminal 30 is received the video monitoring code stream, the point of interruption temporal information that user terminal 30 is preserved IPTV.
With same embodiment among the step S406, the interacting message of streaming media server 202 and user terminal 30 when the IPTV business switches with video monitoring service as shown in Figure 5;
4, streaming media server 202 receives that " x-AlarmPlay " is for after the response of yes, send the Announce request to user terminal 30, SDP (the Sessiondescription protocol of notice JK100000000000011311 video monitoring code stream, Session Description Protocol), expansion x-SSRC head among the SDP, the x-SSRC head indicates synchronous source identifier (the Synchronization Source Identifier of video monitoring code stream, SSRC), it is different from the SSRC of IPTV, provides foundation for the client looks closely taking over seamlessly of audio frequency.
5, streaming media server 202 sends the video monitoring code stream to user terminal 30.Streaming media server 202 moves to user terminal 30 client's formation of JK100000000000011311 media relays session from client's formation of IPTV service conversation, the monitoring code stream of JK100000000000011311 is transmitted to user terminal 30, and transmitting used passage is the RTP media data passage of IPTV.
Among the step S411, user terminal sends the IPTV recovery request to streaming media server, and streaming media server stops the transmission of described video monitoring code stream, and sends the IPTV code stream to user terminal.
Online user's terminal 30 is play described video monitoring code stream, when the user wishes to be back to interrupted IPTV when professional from video monitoring service, user terminal 30 sends playing request to streaming media server 202, and uses the media description information of buffer memory to adjust decoding parametric.Carry point of interruption temporal information in the playing request that streaming media server 202 sends, streaming media server 202 can navigate to the point of interruption to continue to send the IPTV code stream according to described point of interruption temporal information.After user terminal 30 is received the IPTV code stream, adjust decoding parametric, the decoding of beginning IPTV code stream according to the media description information of the IPTV of preserving.
With same embodiment among the step S406, the interacting message of streaming media server 202 and user terminal 30 when the IPTV business switches with video monitoring service as shown in Figure 5;
6, after video monitoring service carried out a period of time, client sent broadcast (PLAY) request of band " Range:npt=now-", and the IPTV business is returned in request.
Streaming media server 202 receives the request that user terminal switches back the IPTV business, stops to send the video monitoring code stream to described user terminal 30.
Streaming media server 202 is received the PLAY request of user terminal 30, this user terminal 30 is moved to the service queue of former IPTV session from the service queue of monitor session, and navigate to the point of interruption according to the temporal information that request is carried and continue to send the IPTV code stream, described IPTV code stream comprises live code stream or program request code stream, thereby realizes the switching of video monitoring code stream to the IPTV code stream.
With same embodiment among the step S406, the interacting message of streaming media server 202 and user terminal 30 when the IPTV business switches with video monitoring service as shown in Figure 5;
7, streaming media server 202 is received the request of user terminal 30, and this user terminal 30 is moved back to original IPTV service conversation, begins the forwarding of live code stream.User terminal 30 is done video/audio encoding and decoding according to the variation that receives code stream SSRC and is switched, and the IPTV program is presented to the user.
Said process is realized intercutting from IPTV to the video monitoring, because this process is based on the online switching of original IPTV media channel, can save RTSP tears down and build the chain expense and effectively shortens switching delay, and when user terminal when video monitoring returns IPTV, as long as carry time point information just therefrom breakpoint succession recover IPTV VOD and these IPTV business of TVOD, thereby satisfy user's personalization, facilitation, interactively demand.
Among the step S412, streaming media server continues as user terminal and transmits current IPTV code stream.When user terminal 30 receives the video monitoring warning information of streaming media server 202 forwardings, return to streaming media server 202 and to ignore replying of this visual alarm information, then streaming media server 202 continues to transmit the IPTV code stream to described user terminal 30, described IPTV code stream comprises current live code stream or program request code stream, finishes the video monitoring alarm.
In another one embodiment of the present invention, different with the foregoing description is that described streaming media server 202 is provided with timeout mechanism, when IPTV session or the idle scheduled duration that surpasses of video monitoring session, finish IPTV session or video monitoring session.
When user terminal 30 does not respond the video monitoring warning information of described streaming media server 202 within a certain period of time, then streaming media server 202 continues as described user terminal and transmits the IPTV code stream; Perhaps surpass scheduled duration when the IPTV session is idle, then streaming media server 202 interrupts transmitting the IPTV code stream to user terminal 30, can save system resource like this, for the user provides the more IPTV business of high-quality.
In order better to realize the present invention the present invention further provides a kind of system that is used to realize the inventive method, comprising:
Video monitoring front-end 101 is used to trigger the video monitoring alarm, and co-current flow media business platform 201 sends the video monitoring warning information;
Streaming media service platform 201 is used for described video monitoring warning information is sent to streaming media server 202;
Streaming media server 202, be used for the video monitoring warning information being transferred to user terminal 30 by the media control channel of IPTV, be established to the relaying of the video monitoring code stream of video monitoring front-end simultaneously, behind the switching command of receiving user terminal 30, streaming media server 202 sends the video monitoring code stream by the media data passage of IPTV to user terminal 30.
In sum, in the present invention after video monitoring front-end triggers alarm, streaming media server is transmitted to user terminal by original IPTV media control channel with the video monitoring warning information, behind the switching command of receiving user terminal, streaming media server sends to user terminal by original IPTV media data passage with the video monitoring code stream again.Whereby, the present invention has realized organically blending of IPTV business and video monitoring service, and the media channel that utilizes the IPTV business to set up is realized the quick switching of IPTV business and video monitoring service, saved and teared down and built the time overhead that medium connect, and effectively shortened switching delay.In addition, the present invention carries out in the process at video monitoring service, and user terminal can be selected to return original IPTV business at any time, continues the service of former IPTV service disconnection point.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (12)
1. the method for an inter-cut video monitoring in IPTV, the system of described IPTV comprises streaming media service platform, streaming media server and video monitoring front-end, it is characterized in that, described method comprises the steps:
A, video monitoring front-end trigger the video monitoring alarm, send the video monitoring warning information to described streaming media service platform;
B, streaming media service platform send to streaming media server with described video monitoring warning information;
C, streaming media server transfer to user terminal by the media control channel of IPTV with described video monitoring warning information, and are established to the relaying of the video monitoring code stream of video monitoring front-end;
D, receive the switching command of user terminal after, streaming media server switches to video monitoring service with described user terminal from interactive network TV service, and the media data passage by IPTV sends the video monitoring code stream to user terminal.
2. method according to claim 1 is characterized in that, also comprises before the described steps A:
User terminal custom video monitoring business, and at streaming media service platform registration video monitoring service customized information; And/or
The user terminal requests interactive network TV service, and between streaming media server and user terminal, set up and maintenance media control channel and media data passage.
3. method according to claim 2 is characterized in that, described step B comprises:
B1, streaming media service platform are inquired about its corresponding video monitoring service customized information to obtain the user terminal tabulation according to described video monitoring warning information;
B2, streaming media service platform are further inquired about the presence of user terminal in the described user terminal tabulation;
B3, streaming media service platform send described video monitoring warning information to the streaming media server of online user's terminal.
4. method according to claim 1 is characterized in that, the streaming media service platform also sends to the media relays request of video monitoring front-end among the described step B to streaming media server;
Streaming media server is established to the relaying of the video monitoring code stream of video monitoring front-end according to this media relays request among the described step C.
5. method according to claim 1 is characterized in that, the media control channel of described IPTV adopts real-time streaming protocol, and described media data passage adopts RTP;
Define and send the monitoring alarm message header by the expansion real-time streaming protocol among the described step C, so that the video monitoring warning information is transferred to user terminal by described media control channel.
6. method according to claim 1 is characterized in that, described step D further comprises:
After D1, user terminal are received the video monitoring warning information, return to streaming media server and to ignore the switching command that alarm command or requirement switch to video monitoring service;
D2, if receive the switching command of user terminal, streaming media server is transferred to this user terminal the service queue of video monitoring session from the service queue of IPTV session;
D3, streaming media server send the video monitoring code stream by described media data passage to user terminal.
7. method according to claim 6 is characterized in that, described step D2 further comprises:
After D21, streaming media server are received the switching command of user terminal, the media description information of video monitoring code stream is sent to user terminal;
D22, user terminal are preserved the media description information of described video monitoring code stream, and return correctly and reply;
After D23, streaming media server are received and correctly replied, this user terminal is transferred to the service queue of video monitoring session from the service queue of IPTV session;
Described step D3 also comprises, after user terminal is received the video monitoring code stream, adjusts decoding parametric according to the media description information of described video monitoring code stream, the decoding of beginning video monitoring code stream.
8. method according to claim 1 is characterized in that, also comprises after the described step D:
E, user terminal send the IPTV recovery request to streaming media server, and streaming media server stops the transmission of described video monitoring code stream, and send the IPTV code stream to user terminal.
9. method according to claim 8 is characterized in that, after user terminal is received the video monitoring code stream among the described step D, preserves the point of interruption temporal information of IPTV;
User terminal carries point of interruption temporal information in the described step e in the IPTV recovery request that streaming media server sends, and streaming media server navigates to the point of interruption to continue to send the IPTV code stream according to described point of interruption temporal information.
10. method according to claim 8 is characterized in that, after user terminal is received the video monitoring code stream among the described step D, further preserves the media description information of IPTV;
After user terminal is received the IPTV code stream in the described step e, adjust decoding parametric, the decoding of beginning IPTV code stream according to the media description information of the IPTV of preserving.
11. method according to claim 1, it is characterized in that, described streaming media server is provided with timeout mechanism, when IPTV session or the idle scheduled duration that surpasses of video monitoring session, finishes IPTV session or video monitoring session.
12. the system of an enforcement such as each method of claim 1～11 is characterized in that, includes:
Video monitoring front-end is used to trigger the video monitoring alarm, and co-current flow media business platform sends the video monitoring warning information;
The streaming media service platform is used for described video monitoring warning information is sent to streaming media server;
Streaming media server, be used for the video monitoring warning information being transferred to user terminal by the media control channel of IPTV, be established to the relaying of the video monitoring code stream of video monitoring front-end simultaneously, behind the switching command of receiving user terminal, streaming media server switches to video monitoring service with described user terminal from interactive network TV service, and sends the video monitoring code stream by the media data passage of IPTV to user terminal.
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| CN102045183B (en) * | 2009-10-22 | 2016-03-02 | 上海贝尔股份有限公司 | A kind of for carrying out the method and apparatus automatically recovered to the service disruption in network |
| CN102740166B (en) * | 2011-03-31 | 2016-08-17 | 新奥特（北京）视频技术有限公司 | A kind of system and method for remote video insertion |
| CN103391420A (en) * | 2012-05-08 | 2013-11-13 | 中兴通讯股份有限公司 | Front video monitoring end, IPTV video monitoring system and automatic alarm method of same |
| CN102752666B (en) * | 2012-07-06 | 2015-04-22 | 中邮科通信技术股份有限公司 | ICS streaming media platform system |
| CN103841368B (en) * | 2012-11-22 | 2017-12-12 | 中国电信股份有限公司 | Video switching method and system, central server, video channel management equipment |
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| CN105227993B (en) * | 2014-06-23 | 2018-09-25 | 北京大学 | The multimedia messages of AVS-DASH systems intercut control method, system and client |
| CN104796664A (en) * | 2015-03-26 | 2015-07-22 | 成都市斯达鑫辉视讯科技有限公司 | Video monitoring device |
| CN105357582A (en) * | 2015-12-11 | 2016-02-24 | 四川长虹网络科技有限责任公司 | Method for intelligent set top box to control television set to display monitoring video |
| CN105847265A (en) * | 2016-03-31 | 2016-08-10 | 乐视控股（北京）有限公司 | Video living streaming transcoding method and device |
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