CN102547408B - Method and system for playing request programs and session manager - Google Patents
Method and system for playing request programs and session manager Download PDFInfo
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Abstract
The embodiment of the invention discloses a method for playing request programs. The method comprises the following steps: a session manager receives a request for the request programs from a digital television receiving terminal; the session manager acquires a playlist according to the request for the request program; and the session manager requests a video server, receives push-flow service addresses corresponding to files to be played in the playlist and sends the push-flow service addresses of the files to be played in the playlist to the digital television receiving terminal, so that the digital television receiving terminal acquires video push flow of the files to be played from the video server for playing according to the push-flow service addresses of the files to be played in the playlist. The embodiment of the invention also discloses the session manager and a system for playing the request programs. The method, the session manager and the system can be used for playing the request programs through any digital television system on the basis of the playlist and cannot be limited by whether the video server supports the request functions of the playlist or not.
Description
Technical field
The present invention relates to video on demand techniques field, relate in particular to a kind of method, system and session manager of play-on-demand program.
Background technology
Digital Television is as a kind of emerging technology, because it compares advantages such as having picture quality is high, Television Sound Quality is superior, saving bandwidth with simulated television, development in the last few years rapidly, China plans 2015 broadcasts that stop simulated television, complete simulated television to the transition of Digital Television, the making of TV programme, transmission and broadcast realize comprehensive digitlization.
Video on-demand system is as a kind of emerging service, and the development that is accompanied by Digital Television has also obtained developing rapidly.Referring to Fig. 1, it is the schematic diagram of a kind of method of play-on-demand program in prior art.The method of this play-on-demand program is based on NGOD(Next Generation On Demand Video Architecture, the basic framework of video-on-demand service of new generation) realize.As shown in Figure 1, first by user, by digital television gateway (Portal), to session manager (Session Manager, SM), initiate order request; Then, SM navigation server (Navigation Server, the NS) playlist that acquisition request authorization code is corresponding; Next, NS finds corresponding order request information according to authorization code, and has judged whether that authority used this service, if be judged as YES charging and deduct fees; Next, NS specifies matchmaker to provide the playlist that file is corresponding to advertising platform (Advertisement Platform, ADP) request; Then, ADP returns to the playlist that comprises advertising message to NS; NS returns to SM by playlist corresponding to authorization code; Then, SM to video server (Stream Server, SS) acquisition request Video stream information, directly sends to SS by playlist by resource management interface R2; Finally, SS, directly according to playlist, pushes the video stream pushing that comprises advertising message to receiving terminal for digital television.
From Fig. 1, can obviously find out, existing request program playing flow requires video server must support playlist program request.But, in digital television system, there are a lot of video servers not support playlist program request, at this moment just cannot realize the function of play-on-demand program.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, a kind of method, system and session manager of play-on-demand program is provided.Can not support that playlist points sowing time still can play-on-demand program at video server.
In order to solve the problems of the technologies described above, the embodiment of the present invention provides a kind of method of play-on-demand program, comprising:
Session manager receives order request from receiving terminal for digital television;
Session manager obtains playlist according to described order request; Session manager is to video server request and receive the plug-flow address of service corresponding to the file to be played in described playlist, the plug-flow address of service of the file to be played in described playlist is sent to receiving terminal for digital television, so that described receiving terminal for digital television is according to the plug-flow address of service of the file to be played in described playlist, from described video server, obtain the video stream pushing of described file to be played and play, the file to be played in described playlist comprises video ads and video frequency program.
Wherein, described session manager is to video server request and receive the plug-flow address of service corresponding to the file to be played in described playlist, and sends to the step of receiving terminal for digital television specifically to comprise the plug-flow address of service of the file to be played in described playlist:
Session manager judges in described playlist whether have file to be played, if be judged as YES, to video server request, also receives the plug-flow address of service corresponding to the current file to be played in described playlist;
Session manager sends to receiving terminal for digital television by the plug-flow address of service of the current file to be played in described playlist, so that described receiving terminal for digital television, according to the plug-flow address of service of the current file to be played in described playlist, obtains the video stream pushing of described current file to be played and plays from described video server.
Wherein, described method also comprises:
Session manager receives and finishes indication from described video server, and return and carry out described session manager and judge the step that whether has file to be played in described playlist, described in finish indication for representing that the described current file to be played of described playlist finishes.
Wherein, described method also comprises:
Session manager is the situation that is communicated with of detection and receiving terminal for digital television and video server termly.
Wherein, the step that described session manager obtains playlist according to described order request specifically comprises:
Session manager is by session management interface to subscription server acquisition request playlist, and described playlist is that described subscription server is obtained from advertising platform;
Subscription server judges that whether described request is legal, if be judged as YES, to described session manager, returns to described playlist.
Correspondingly, the embodiment of the present invention also provides a kind of session manager, comprising:
Order request receiver module, for receiving order request from receiving terminal for digital television;
Playlist acquisition module, for obtaining playlist according to described order request;
Plug-flow address of service acquisition module, for also receiving the plug-flow address of service corresponding to the file to be played of described playlist to video server request, the file to be played in described playlist comprises video ads and video frequency program;
Plug-flow address of service forwarding module, for the plug-flow address of service of the file to be played of described playlist is sent to receiving terminal for digital television, so that described receiving terminal for digital television, according to the plug-flow address of service of the file to be played in described playlist, obtains the video stream pushing of described file to be played and plays from described video server.
Wherein, described plug-flow address of service acquisition module specifically comprises:
Judge module, for judging whether described playlist exists file to be played;
Plug-flow address of service request module, for when judgment result is that of described judge module is to described video server request the plug-flow address of service corresponding to the current file to be played of described playlist;
Plug-flow address of service receiver module, for receiving the plug-flow address of service corresponding to the current file to be played of described playlist from described video server, and notify described plug-flow address of service forwarding module that the plug-flow address of service of the current file to be played in described playlist is sent to receiving terminal for digital television, so that described receiving terminal for digital television, according to the plug-flow address of service of the current file to be played in described playlist, obtains the video stream pushing of described current file to be played and plays from described video server.
Wherein, described session manager also comprises:
Plug-flow is monitored module, for receiving and finish indication from described video server, and notify described judge module to continue judge whether to exist in described playlist file to be played, described in finish and indicate for representing that the described current file to be played of described playlist finishes.
Wherein, described session manager also comprises:
Connection situation detection module, for detecting termly the situation that is communicated with between described session manager and described receiving terminal for digital television and described video server.
Correspondingly, the embodiment of the present invention also provides a kind of system of play-on-demand program, comprises receiving terminal for digital television, video server and session manager, and described session manager comprises:
Order request receiver module, for receiving order request from receiving terminal for digital television;
Playlist acquisition module, for obtaining playlist according to described order request;
Plug-flow address of service acquisition module, for also receiving the plug-flow address of service corresponding to the file to be played of described playlist to video server request, the file to be played in described playlist comprises video ads and video frequency program;
Plug-flow address of service forwarding module, for the plug-flow address of service of the file to be played of described playlist is sent to receiving terminal for digital television, so that described receiving terminal for digital television, according to the plug-flow address of service of the file to be played in described playlist, obtains the video stream pushing of described file to be played and plays from described video server.
Implement the embodiment of the present invention, there is following beneficial effect: the function that realizes playlist program request by session manager, so just can whether do not supported playlist points multicast function to limit to by video server, can pass through Any Digit television system play-on-demand program.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of the method for a kind of play-on-demand program of the prior art;
Fig. 2 is the first embodiment flow chart of the method for play-on-demand program provided by the invention;
Fig. 3 is the first example structure schematic diagram of the system of play-on-demand program provided by the invention;
Fig. 4 is the second embodiment flow chart of the method for play-on-demand program provided by the invention;
Fig. 5 is the 3rd embodiment flow chart of the method for play-on-demand program provided by the invention;
Fig. 6 is the first example structure schematic diagram of the system of play-on-demand program provided by the invention;
Fig. 7 is the 4th embodiment schematic diagram of the method for play-on-demand program provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Referring to Fig. 2, it is the first embodiment flow chart of the method for play-on-demand program provided by the invention.As shown in Figure 2, the method comprises:
In step S200, session manager receives order request from receiving terminal for digital television.
In step S201, session manager obtains playlist according to described order request.
In step S202, session manager is to video server request and receive the plug-flow address of service corresponding to the file to be played in described playlist, the plug-flow address of service of the file to be played in described playlist is sent to receiving terminal for digital television, so that described receiving terminal for digital television, according to the plug-flow address of service of the file to be played in described playlist, obtains the video stream pushing of described file to be played and plays from described video server.
The method of a kind of play-on-demand program provided by the invention, by session manager, realize the function of playlist program request, so just can whether do not supported playlist points multicast function to limit to by video server, can pass through Any Digit television system play-on-demand program.
The receiving terminal for digital television of the embodiment of the present invention includes but not limited to: Set Top Box, digital TV integrated machine, intelligent television and IPTV(Internet Protocol Television, network protocol television) etc. the terminal of receiving digital television.
Referring to Fig. 3, it is the first example structure schematic diagram of the system of play-on-demand program provided by the invention.System shown in Fig. 3 is for the method shown in execution graph 2, and as shown in Figure 3, this system comprises receiving terminal for digital television 1, video server 2 and session manager 3.Wherein, session manager 3 comprises:
Order request receiver module 31, for receiving order request from receiving terminal for digital television 1.
Playlist acquisition module 32, for obtaining playlist according to the order request receiving.
Plug-flow address of service acquisition module 33, for asking and receive the plug-flow address of service corresponding to the file to be played of playlist to video server 2.
Plug-flow address of service forwarding module 34, for the plug-flow address of service of the file to be played of playlist is sent to receiving terminal for digital television 1, so that receiving terminal for digital television 1, according to the plug-flow address of service of the file to be played in playlist, obtains the video stream pushing of file to be played and plays from video server 2.
The system of a kind of play-on-demand program provided by the invention, by session manager, realize the function of playlist program request, so just can whether do not supported playlist points multicast function to limit to by video server, can pass through Any Digit television system play-on-demand program.
Referring to Fig. 4, it is the second embodiment flow chart of the method for play-on-demand program provided by the invention.As shown in Figure 4, the method comprises:
In step S400, session manager receives order request from receiving terminal for digital television.Particularly, receiving terminal for digital television can pass through RTSP(Real Time Streaming Protocol, real time streaming transport protocol) string is initiated order request to session manager, by the describe request of RTSP, to session manager, initiate order request, session manager receives after order request, can carry out describe to receiving terminal for digital television returns, represent to accept this order request, at this moment, receiving terminal for digital television can be initiated to session manager the SETUP request of RTSP, the communication connection between foundation and session manager.
In step S401, session manager passes through session management interface to subscription server acquisition request playlist, wherein, file to be played in playlist comprises video ads and video frequency program, and this playlist that comprises advertising message is that subscription server is obtained from advertising platform, can in play-on-demand program, realizes video ads like this and intercut.In the overall architecture NGOD of video on-demand system, defined session management interface S1 to S6, they are mainly responsible for foundation and the destruction of session, have real-time.In the present embodiment, session manager can be by S2 interface to subscription server acquisition request playlist, wherein S2 interface is called again session authorization interface, it is the session authorization interface between session manager and subscription server, the session information of session manager need to be sent to the real-time authorization that subscription server is carried out session, in the present embodiment, S2 interface is used to the session between session manager and subscription server.
In step S402, subscription server judges the above-mentioned request of session manager whether legal (for example, whether authorizing).By the verification to request legitimacy, can avoid disabled user to obtain playlist and carry out displaying video.If subscription server judges the above-mentioned request of session manager, whether legal the determination result is NO, and this method flow process finishes; If subscription server judges that whether legal judgment result is that of above-mentioned request of session manager is to perform step S403.
In step S403, subscription server returns to session manager by playlist.
In step S404, session manager is to video server request and receive the plug-flow address of service corresponding to the file to be played in playlist, the plug-flow address of service of the file to be played in playlist is sent to receiving terminal for digital television, so that receiving terminal for digital television, according to the plug-flow address of service of the file to be played in playlist, obtains the video stream pushing of file to be played and plays from video server.Particularly, the SETUP that session manager is initiated RTSP by the resource management interface R2 defining in NGOD to video server asks, the communication connection of foundation and video server, then to video server acquisition request plug-flow address of service, the i.e. address of service of plug-flow control interface C1; Then, video server carries out returning of SETUP to session manager, has wherein carried plug-flow address of service; Next, session manager carries out returning of SETUP in step S400 to receiving terminal for digital television, has wherein carried plug-flow address of service.Like this, by session manager, according to playlist, from video server, obtain plug-flow address of service, again plug-flow address of service is transmitted to receiving terminal for digital television, so that receiving terminal for digital television obtains video stream pushing according to plug-flow address of service from video server and plays, can not support playlist points to realize intercutting of video ads sowing time at video server.Wherein, R2 is called again stream pushing server resource interface, resource for managing video server, by this interface, configuration, state and the available resources that can monitor a plurality of video servers, for example, can arrange the distribution of flowing resource in selected stream pushing server by Interface R2, parameters such as flow port number and bandwidth, in embodiments of the present invention, Interface R2 is used to the session between session manager and video server.C1 is plug-flow control interface, and for supporting for example video playback, time-out, F.F., fall back such " cheating mode ", in embodiments of the present invention, C1 interface is for transmission of video plug-flow.
Referring to Fig. 5, it is the 3rd embodiment flow chart of the method for play-on-demand program provided by the invention.As shown in Figure 5, the method comprises:
In step S500, in step S400, session manager receives order request from receiving terminal for digital television.
In step S501, the playlist that session manager comprises advertising message by session management interface to subscription server acquisition request, described in comprise advertising message playlist be that described subscription server is obtained from advertising platform.
In step S502, subscription server judges that whether described request is legal, if be judged as NO, this method flow process finishes; If be judged as YES, perform step S403.
In step S503, subscription server returns to session manager by the playlist that comprises advertising message.
In step S504, session manager judges in playlist whether have file to be played, if be judged as NO, this method flow process finishes; If be judged as YES, perform step S505.
In step S505, session manager is to video server request and receive the plug-flow address of service corresponding to the current file to be played in playlist.File current to be played in playlist can be the file to be played making number one in playlist, can be also the file to be played of selecting arbitrarily in playlist.
In step S506, session manager sends to receiving terminal for digital television by the plug-flow address of service of the current file to be played in playlist.
In step S507, receiving terminal for digital television, according to the plug-flow address of service of the current file to be played in playlist, obtains the video stream pushing of current file to be played and plays from video server.
In step S508, when the plug-flow end of transmission of the current file to be played of processing, video server sends and finishes indication to session manager.Particularly, when the plug-flow end of transmission of a file to be played, video server is initiated the ANNOUNCE request of RTSP to session manager, for representing that this video file finishes.
In step S509, session manager receives and finishes indication from video server, and returns to execution step S504.Particularly, session manager receives after ANNOUNCE request, carries out ANNOUNCE and returns, and return to execution step S504 to video server.In this way, after a file of playlist finishes, by session manager scheduling, carry out the broadcasting of next file until whole playlist All Files finishes or user initiatively exits.
Preferably, between step S507 and step S508, the method flow process also comprises step: session manager is communicated with situation between detection and receiving terminal for digital television and video server termly.Particularly, receiving terminal for digital television is periodically initiated the heartbeat (being the GET PARAMETER request of RTSP) of RTSP to session manager, if being communicated with in order between receiving terminal for digital television and session manager, receiving terminal for digital television receives the heartbeat that session manager sends and returns to (the GET PARAMETER that is RTSP returns).Session manager is also periodically initiated the heartbeat of RTSP to video server, if being communicated with in order between session manager and video server, session manager receives the heartbeat that video server sends and returns.
More preferably, after step S503, the method flow process also comprises: session manager is selected video server according to preset rules, and distribution network digital modulator (IPQAM) resource, to obtain plug-flow address of service from this video server, and make receiving terminal for digital television pass through distributed IPQAM resource according to this plug-flow address of service from video server, to obtain video stream pushing and play.Wherein, preset rules comprises the rule of any appropriate well known to those skilled in the art.For example, session manager is selected video server according to the priority of video server, calculates the priority of video server according to the bandwidth of the quality of video stream pushing, network, flow etc.
Referring to Fig. 6, it is the second example structure schematic diagram of video on-demand system provided by the invention.As shown in Figure 6, this system comprises receiving terminal for digital television 1, video server 2, session manager 3, subscription server 4 and advertising platform 5.Wherein, session manager 3 comprises:
Order request receiver module 31, for receiving order request from receiving terminal for digital television.Particularly, receiving terminal for digital television 1 can be gone here and there and be initiated order request to session manager 3 by RTSP, by the describe request of RTSP, to session manager 3, initiates order request.Order request receiver module 31 receives after order request, can carry out describe to receiving terminal for digital television and return, and represents to accept this order request.
Playlist acquisition module 32, for passing through session management interface to subscription server acquisition request playlist, and receives playlist from subscription server.Wherein, the file to be played in playlist comprises video ads and video frequency program, and this playlist that comprises advertising message is that subscription server is obtained from advertising platform, can in play-on-demand program, intercut video ads like this.In the overall architecture NGOD of video on-demand system, defined session management interface S1-S6.In the present embodiment, playlist acquisition module 32 can be by S2 interface to subscription server acquisition request playlist.
Preferably, this playlist acquisition module 32 passes through S2 interface after subscription server acquisition request playlist, the request that subscription server can be sent playlist acquisition module 32 (is for example carried out legitimacy verification, judge whether to authorize), only have and when subscription server, determine this and ask when legal, playlist acquisition module 32 could receive playlist from subscription server.By the verification to request legitimacy, can avoid disabled user to obtain playlist and carry out displaying video.
Plug-flow address of service acquisition module 33, for also receiving the plug-flow address of service corresponding to the file to be played of playlist to video server request.Particularly, the SETUP that plug-flow address of service acquisition module 33 can be initiated RTSP to video server 2 by the resource management interface R2 defining in NGOD asks, set up the communication connection with video server 2, then to video server 2 acquisition request plug-flow address of service, the i.e. addresss of service of plug-flow control interface C1; Then, plug-flow address of service acquisition module 33 receives returning of SETUP from video server 2, has wherein carried the plug-flow address of service of the file to be played of asking.
Wherein, plug-flow address of service acquisition module 33 can comprise:
Judge module 331, for judging whether playlist exists file to be played.
Plug-flow address of service request module 332, for when judgment result is that of judge module 331 is, to, video server 2 acquisition request are corresponding to the plug-flow address of service of the current file to be played in playlist.File current to be played in playlist can be the file to be played making number one in playlist, can be also the file to be played of selecting arbitrarily in playlist.
Plug-flow address of service receiver module 333, for the plug-flow address of service receiving corresponding to the current file to be played of playlist from video server 2.
Session manager 3 also comprises plug-flow address of service forwarding module 34, for the plug-flow address of service of the current file to be played of the playlist of plug-flow address of service receiver module 333 receptions is sent to receiving terminal for digital television 1, so that receiving terminal for digital television 1, according to the plug-flow address of service of the file to be played in playlist, obtains the video stream pushing of file to be played and plays from video server 3.Particularly, plug-flow address of service forwarding module 34 can receive from receiving terminal for digital television 1 the SETUP request of RTSP, communication connection between foundation and receiving terminal for digital television 1, then, plug-flow address of service forwarding module 34 can carry out returning of SETUP to receiving terminal for digital television 1, has wherein carried the plug-flow address of service of the file to be played of asking.Like this, by session manager 3, according to playlist, from video server 2, obtain plug-flow address of service, again plug-flow address of service is transmitted to receiving terminal for digital television 1, so that receiving terminal for digital television 1 obtains video stream pushing according to plug-flow address of service from video server 2 and plays, can not support playlist points to realize intercutting of video ads sowing time at video server 2.
Session manager 3 also comprises that plug-flow monitors module 35, during for the plug-flow end of transmission of the current file to be played when processing, from video server 2, receives and finishes indication.Particularly, when the plug-flow end of transmission of a file to be played, plug-flow is monitored the ANNOUNCE request that module 35 can receive the RTSP that video server 2 initiates, and ANNOUNCE request is used for representing that this video file finishes.Plug-flow is monitored module 35 can carry out returning of ANNOUNCE to video server 2, and notifies judge module 331 to continue to judge in playlist, whether to have file to be played.
Preferably, session manager 3 can also comprise connection situation detection module, for detecting termly the situation that is communicated with between session manager 3 and receiving terminal for digital television 1 and video server 2.Particularly, if being communicated with in order between receiving terminal for digital television 1 and session manager 3, connection situation detection module can periodically receive the heartbeat (being the GET PARAMETER request of RTSP) of the RTSP of receiving terminal for digital television 1 initiation, and returns to (the GET PARAMETER that is RTSP returns) to receiving terminal for digital television 1 transmission heartbeat.Connection situation detection module also can be periodically initiated the heartbeat of RTSP to video server 2, if being communicated with in order between session manager 3 and video server 2 is communicated with the heartbeat that situation detection module can receive video server 2 transmissions and returns.
More preferably, session manager 3 can also comprise selection module, for selecting video server according to preset rules, and distribution network digital modulator (IPQAM, Internet Protocol Quadrature Amplitude Modulation) resource, so that plug-flow address of service acquisition module 33 is from selecting the selected video server of module to obtain plug-flow address of service, and make receiving terminal for digital television 1 pass through distributed IPQAM resource according to this plug-flow address of service from video server 2, to obtain video stream pushing and play.Wherein, preset rules can comprise the rule of any appropriate well known to those skilled in the art.For example, select module to select video server according to the priority of video server, can calculate according to the bandwidth of the quality of video stream pushing, network, flow etc. the priority of video server.
Although in the above-described embodiments session manager 3 is divided into several specific modules, this is only used for explaining, and is not used in restriction.In other embodiments of the invention, session manager 3 can also be divided into other modules, or do as a whole.Such as order request receiver module 31, playlist acquisition module 32, plug-flow address of service acquisition module 33, plug-flow address of service forwarding module 34 and/or plug-flow monitoring module 35 etc. can be merged into communication module, and this communication module is for carrying out information interaction with other network elements of video on-demand system.
Referring to Fig. 7, it is the 4th embodiment schematic diagram of the method for play-on-demand program provided by the invention.In the present embodiment, the general frame NGOD based on video-on-demand service, utilize RTSP(Real Time Streaming Protocol, real time streaming transport protocol) implement this method.As shown in Figure 7, the method comprises:
S1, door Portal receive the order request of user's input, and wherein Portal can be the program request client of any appropriate, such as television set, computer, mobile phone etc.;
S2, Portal send to navigation server (Navigation Server by dibbler request, NS), wherein, NS is as the navigate application of abstract certain logic of the assets that entity is video-on-demand service, and NS provides navigation menu and related application attribute to activate navigation feature to Portal and with Portal exchange message;
S3, NS send to subscription server (Purchase Server by order request, PS), wherein, PS is as a purchase that entity is video-on-demand service and authorize the application of abstract certain logic, and PS receives from the purchase request of Portal and checks that authorization server authorizes purchase right;
S4, PS generate and order token and RTSP string corresponding to this order request;
The playlist that S5, PS comprise advertising message to advertising platform (Advertisement Platform, ADP) acquisition request;
S6, ADP return to PS by playlist;
S7, PS carry out the buffer memory of PT and playlist;
S8, PS return to NS by playlist and RTSP string corresponding to order request;
S9, NS return to Portal by playlist and RTSP string corresponding to order request;
S10, Portal generate progress bar according to playlist;
S11, STB(Set Top Box, Set Top Box) by RTSP, go here and there to SM(Session Manager, session manager) initiate order request, the describe of RTSP asks;
S12, SM carry out describe to STB and return;
S13, STB initiate the SETUP request of RTSP to SM;
S14, SM by the S2 interface that defines in NGOD to PS acquisition request playlist;
S15, PS carry out legitimacy verification to this request;
S16, PS return to SM by playlist; SM selects IPQAM and SS(Stream Server, video server);
First file of the corresponding playlist of S17, SM, by the Interface R2 defining in NGOD, to SS, initiate SETUP and ask, thereby to the address of service of the plug-flow control interface C1 defining in SS acquisition request NGOD;
S18, SS carry out returning of SETUP to SM, carry the address of service of C1;
S19, SM carry out returning of SETUP to STB, carry the address of service of C1;
S20, STB initiate the PLAY request of RTSP to SM;
S21, SM initiate the PLAY request of plug-flow control interface C1 to SS;
The PLAY that S22, SS carry out plug-flow control interface C1 to SM returns;
The PLAY that S23, SM carry out RTSP to STB returns;
S24, SS carry out plug-flow to STB;
S25, STB periodically initiate the heartbeat (GET PARAMETER) of RTSP to SM;
S26, SM carry out heartbeat to STB and return;
S27, SM periodically initiate RTSP heartbeat to SS;
S28, SS carry out heartbeat to SM and return;
S29, after first file finishes, SS initiates the ANNOUNCE request of RTSP to SM;
S30, SM carry out ANNOUNCE to SS and return;
S31, SM judge in playlist whether have next file, if had, to SS, initiate TEARDOWN request;
S32, SS carry out TEARDOWN to SM and return;
The next file of the corresponding playlist of S33, SM, by the resource management interface R2 defining in NGOD, to SS, initiate SETUP and ask, thereby to SS acquisition request C1 address of service;
S34, SS carry out returning of SETUP to SM, carry the address of service of C1;
S35, SM carry out returning of SETUP to STB, carry the address of service of C1;
S35, SM initiate the PLAY request of C1 to SS;
The PLAY that S36, SS carry out C1 to SM returns;
S37, file finish, and SS initiates the ANNOUNCE request of RTSP to SM;
S38, SM judge in playlist whether have next file, if do not had, to STB, initiate ANNOUNCE request;
S39, STB carry out ANNOUNCE to SM and return;
S40, SM carry out ANNOUNCE to SS and return;
S41, STB initiate TEARDOWN request to SM;
S42, SM initiate TEARDOWN request to SS;
S43, SM carry out TEARDOWN and return, and SS destroys the session with SM;
S44, STB also carry out TEARDOWN and return, the session between SM destruction and STB.
Although Fig. 7 has described a kind of specific embodiment of method of play-on-demand program with reference to the video on-demand system based on NGOD and RSTP, the present invention is not limited to this.In other embodiments of the invention, can in reference to figure 2,4 and 5 described embodiments of the method, apply arbitrary characteristics embodiment illustrated in fig. 7 and/or its any combination.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, to come the hardware that instruction is relevant to complete by computer program, described program can be stored in a computer read/write memory medium, this program, when carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above disclosed is only a kind of preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, one of ordinary skill in the art will appreciate that all or part of flow process that realizes above-described embodiment, and the equivalent variations of doing according to the claims in the present invention, still belong to the scope that invention is contained.
Claims (10)
1. a method for play-on-demand program, is characterized in that, comprising:
Session manager receives order request from receiving terminal for digital television;
Session manager obtains playlist according to described order request;
Session manager sends request by resource management interface to video server, described video server returns to the message of carrying corresponding to the plug-flow address of service of the file to be played in described playlist to described session manager, described session manager sends to receiving terminal for digital television by the plug-flow address of service of the file to be played in described playlist, so that described receiving terminal for digital television is according to the plug-flow address of service of the file to be played in described playlist, from described video server, obtaining the video stream pushing of described file to be played plays, file to be played in described playlist comprises video ads and video frequency program.
2. the method for play-on-demand program according to claim 1, it is characterized in that, described session manager sends request by resource management interface to video server, described video server returns to the message of carrying corresponding to the plug-flow address of service of the file to be played in described playlist to described session manager, described session manager sends to the step of receiving terminal for digital television specifically to comprise the plug-flow address of service of the file to be played in described playlist:
Session manager judges in described playlist whether have file to be played, if be judged as YES, to video server request, also receives the plug-flow address of service corresponding to the current file to be played in described playlist;
Session manager sends to receiving terminal for digital television by the plug-flow address of service of the current file to be played in described playlist, so that described receiving terminal for digital television, according to the plug-flow address of service of the current file to be played in described playlist, obtains the video stream pushing of described current file to be played and plays from described video server.
3. the method for play-on-demand program according to claim 2, is characterized in that, described method also comprises:
Session manager receives and finishes indication from described video server, and return and carry out described session manager and judge the step that whether has file to be played in described playlist, described in finish indication for representing that the described current file to be played of described playlist finishes.
4. the method for play-on-demand program according to claim 1, is characterized in that, described method also comprises:
Session manager is the situation that is communicated with of detection and receiving terminal for digital television and video server termly.
5. the method for play-on-demand program according to claim 1, is characterized in that, the step that described session manager obtains playlist according to described order request specifically comprises:
Session manager is by session management interface to subscription server acquisition request playlist, and described playlist is that described subscription server is obtained from advertising platform;
Subscription server judges that whether described request is legal, if be judged as YES, to described session manager, returns to described playlist.
6. a session manager, is characterized in that, comprising:
Order request receiver module, for receiving order request from receiving terminal for digital television;
Playlist acquisition module, for obtaining playlist according to described order request;
Plug-flow address of service acquisition module, for sending request by resource management interface to video server, and receiving the plug-flow address of service corresponding to the file to be played in described playlist that described video server returns, the file to be played in described playlist comprises video ads and video frequency program;
Plug-flow address of service forwarding module, for the plug-flow address of service of the file to be played of described playlist is sent to receiving terminal for digital television, so that described receiving terminal for digital television, according to the plug-flow address of service of the file to be played in described playlist, obtains the video stream pushing of described file to be played and plays from described video server.
7. session manager according to claim 6, is characterized in that, described plug-flow address of service acquisition module specifically comprises:
Judge module, for judging whether described playlist exists file to be played;
Plug-flow address of service request module, for when judgment result is that of described judge module is to described video server request the plug-flow address of service corresponding to the current file to be played of described playlist;
Plug-flow address of service receiver module, for receiving the plug-flow address of service corresponding to the current file to be played of described playlist from described video server, and notify described plug-flow address of service forwarding module that the plug-flow address of service of the current file to be played in described playlist is sent to receiving terminal for digital television, so that described receiving terminal for digital television, according to the plug-flow address of service of the current file to be played in described playlist, obtains the video stream pushing of described current file to be played and plays from described video server.
8. session manager according to claim 7, is characterized in that, described session manager also comprises:
Plug-flow is monitored module, for receiving and finish indication from described video server, and notify described judge module to continue judge whether to exist in described playlist file to be played, described in finish and indicate for representing that the described current file to be played of described playlist finishes.
9. session manager according to claim 6, is characterized in that, described session manager also comprises:
Connection situation detection module, for detecting termly the situation that is communicated with between described session manager and described receiving terminal for digital television and described video server.
10. a system for play-on-demand program, is characterized in that, comprises receiving terminal for digital television, video server and session manager, and described session manager comprises:
Order request receiver module, for receiving order request from receiving terminal for digital television;
Playlist acquisition module, for obtaining playlist according to described order request;
Plug-flow address of service acquisition module, for sending request by resource management interface to video server, and receiving the plug-flow address of service corresponding to the file to be played in described playlist that described video server returns, the file to be played in described playlist comprises video ads and video frequency program;
Plug-flow address of service forwarding module, for the plug-flow address of service of the file to be played of described playlist is sent to receiving terminal for digital television, so that described receiving terminal for digital television, according to the plug-flow address of service of the file to be played in described playlist, obtains the video stream pushing of described file to be played and plays from described video server.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102917254B (en) * | 2012-10-08 | 2016-06-29 | 青岛海信传媒网络技术有限公司 | Program broadcasting method and system based on NGOD |
| CN103024467A (en) * | 2012-12-11 | 2013-04-03 | 中兴通讯股份有限公司 | Method, device and system for achieving Internet protocol television (IPTV) business |
| CN103974092B (en) * | 2013-01-31 | 2018-05-15 | 中兴通讯股份有限公司 | A kind of method, apparatus and Web TV that Web broadcast is realized based on Web TV |
| CN103269442B (en) * | 2013-04-23 | 2017-02-15 | 华为技术有限公司 | Content on-demand broadcasting method, content on-demand broadcasting system and content on-demand broadcasting equipment |
| CN103442258A (en) * | 2013-08-15 | 2013-12-11 | 青岛海信传媒网络技术有限公司 | Method, device and system for achieving flow resource management |
| CN104735475B (en) * | 2013-12-24 | 2018-01-23 | 华为技术有限公司 | Method, back-stage management server and the video on-demand system of video request program |
| CN103929683A (en) * | 2014-04-29 | 2014-07-16 | 北京融合视讯科技有限公司 | Video on demand method, data server, video terminal and video on demand system |
| CN105744311A (en) * | 2014-12-09 | 2016-07-06 | 深圳Tcl数字技术有限公司 | Terminal and method for inserting advertisement in video application |
| CN105933728A (en) * | 2016-04-20 | 2016-09-07 | 乐视控股（北京）有限公司 | Playing request method, device, and system |
| CN108366278B (en) * | 2018-02-01 | 2020-08-28 | 北京奇艺世纪科技有限公司 | User interaction implementation method and device in video playing |
| CN110677695B (en) * | 2018-07-03 | 2023-04-07 | 视联动力信息技术股份有限公司 | Video data playing method and system |
| CN111818360B (en) * | 2020-09-14 | 2021-04-27 | 平安国际智慧城市科技股份有限公司 | Media on-demand method, system and device |
| CN114567818B (en) * | 2020-11-27 | 2023-10-31 | 青岛海信宽带多媒体技术有限公司 | IPTV unicast program playing optimization method and device and intelligent set top box |
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