CN102638731B - A kind of optimization method and system of user's program request - Google Patents
A kind of optimization method and system of user's program request Download PDFInfo
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- CN102638731B CN102638731B CN201110415116.8A CN201110415116A CN102638731B CN 102638731 B CN102638731 B CN 102638731B CN 201110415116 A CN201110415116 A CN 201110415116A CN 102638731 B CN102638731 B CN 102638731B
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Abstract
The present invention provides a kind of optimization method and system of user's program request, the described method includes：Streaming media server asks the program in program of the local search less than STB program requests, to MLSS；The streaming media server communicates with the streaming media server of the redirection according to the streaming media server address of redirection and the parameter information of the program that receive MLSS returns, obtains programme content and be sent to STB.The present invention is communicated by streaming media server with the streaming media server after redirecting, reduce the Signalling exchange between STB and streaming media server, improve the efficiency of STB, when streaming media server especially after redirection is HTTP server, it can also realize that HTTP server provides the RTSP functions of service for STB, it can be not support to redirect STB, PC of RTSP signalings and local user's offer order program service that service content can be provided, optimize user's program request.
Description
Technical field
The present invention relates to user's program request technical field, more particularly to a kind of optimization method and system of user's program request.
Background technology
In Interactive Internet TV (IPTV) system, media server can provide order program service to the user.Here, user
It can be set-top box, PC, mobile phone etc. terminal.How to provide order program service to the user, how to provide quick program request to the user
How service, improve the treatment effeciency of set-top box, and it is all optimization user's program request quickly to provide service for set-top box, improves IPTV
The efficiency key issue of system service.
With reference to the structure of the IPTV system shown in Fig. 1, the flow of user's program request in current IPTV system is said
It is bright：User wants some program of program request in IPTV system, and set-top box (Set Top Box, STB) needs to set to the node of own home
Preparation send real time streaming transport protocol (Real Time Streaming Protocol, RTSP) signaling, after successfully interacting, institute
The node device for stating ownership sends program stream to STB.If the node device of ownership does not have the content of STB program requests, belong to
Node device to positioning server of medium (Media Locate Service System, MLSS) inquiry there are this content
Node device address, returns to redirecting signaling, signaling includes the address of this redirection, and STB is received by RTSP signalings to STB
To after the redirection message, RTSP signalings are sent to new node device, order program service is provided to the user by new node device.
In the prior art, there are certain limitation for the flow of user's program request.Mainly include several aspects：First, for having
A little terminals such as set-top box or PC may not support RTSP redirecting signalings, and the node that so may result in the user's ownership is set
Standby no content is watched to user, and other node devices have this content, even if the node device of ownership is returned to user
Redirecting signaling, but this user can not go other nodes to be serviced, and cause program request to fail；Second, redirect operation meeting
Increase set-top box signaling number of processing, cause the delay of user's program request, cause to bear to set-top box processes signaling；3rd, it is right
In some HTTP servers that can only provide HTTP service, even if the node device of user attaching is with returning new redirection
Location, but since the node device after redirection can only provide HTTP service, and set-top box only supports RTSP signalings, causes and resets
Node device backward cannot carry out RTSP Signalling exchanges with set-top box, even if result in the node device after redirecting is HTTP
Server, has the content that can be provided, but still cannot provide order program service for set-top box.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of optimization method and system of user's program request, Neng Gouyou
Change user's program request.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of optimization method of user's program request, the described method includes：
Streaming media server asks the program in program of the local search less than STB program requests, to MLSS；
The streaming media server is according to the streaming media server address and institute for receiving the redirection that the MLSS is returned
The parameter information of program is stated, is communicated with the streaming media server of the redirection, programme content is obtained and is sent to STB.
Further, the method further includes：
STB sends streaming media server of the RTSP signalings to own home according to play-on-demand program information input by user；
After the streaming media server receives the RTSP signalings, inquiry is local to whether there is the program.
Wherein, the streaming media server is to the MLSS requests program：
The streaming media server sends the request for the index file for obtaining the program to the MLSS；
After the streaming media server is properly received index file URL and the size that the MLSS is returned, to described
MLSS obtains the request of the basic rate file of the program.
Further, the streaming media server to the MLSS send the index file for obtaining the program request it
Afterwards, the method further includes：
When the streaming media server is not successfully received the index file that the MLSS is returned, returns to program request to STB and lose
Lose.
Wherein, the streaming media server is according to the streaming media server address for receiving the redirection that the MLSS is returned
With the parameter information of the program, communicate with the streaming media server address of the redirection, it is concurrent to obtain programme content
Giving STB is：
After the streaming media server is properly received basic rate file URL and the size that the MLSS is returned, pass through
The content delivery request of http protocol is by the URL and size of the index file and basic rate file, the HTTP ends applied
Mouth is sent to the streaming media server of the redirection；
The streaming media server of the redirection send request response to send out the programme content of the STB program requests by content wound
The streaming media server is given, the programme content of acquisition is sent to STB by the streaming media server.
A kind of optimization system of user's program request, including STB, the system of stating further include：Streaming media server, MLSS；Wherein,
The streaming media server, in program of the local search less than STB program requests, the section to be asked to MLSS
Mesh；And according to the streaming media server address of the MLSS received the redirections returned, the Streaming Media with the redirection
Server communicates, and obtains programme content and is sent to STB.
Wherein, the STB, for according to play-on-demand program information input by user, sending RTSP signalings to own home
Streaming media server；
The streaming media server, after receiving the RTSP signalings, inquiry is local to whether there is the section
Mesh.
Wherein, the streaming media server, the index file of the program is obtained specifically for being sent to the MLSS
Request；After index file URL and the size that the MLSS is returned is properly received, the basic of the program is obtained to the MLSS
The request of speed file.
Wherein, the streaming media server, specifically for when being not successfully received the index file that the MLSS is returned, giving
The STB returns to program request failure.
Wherein, the streaming media server, specifically for as the basic rate file URL for being properly received the MLSS returns
And after size, by the content delivery request of http protocol by the URL and size of the index file and basic rate file, Shen
Http port please is sent to the streaming media server of the redirection；
The streaming media server of the redirection, specifically for sending request response by the STB program requests by content wound
Programme content is sent to the streaming media server, and the programme content of acquisition is sent to STB by the streaming media server.
The present invention is communicated by streaming media server with the streaming media server after redirecting, and reduces set-top box and stream
Signalling exchange between media server, improves the efficiency of STB, and the streaming media server especially after redirection is HTTP service
It during device, can also realize that HTTP server provides the RTSP functions of service for STB, can be not support to redirect RTSP signalings
STB, PC and the local user's offer order program service that can not provide service content, optimize user's program request.
Brief description of the drawings
Fig. 1 is the structure diagram of existing IPTV system；
Fig. 2 realizes flow diagram for the optimization method of user's program request of the present invention；
Fig. 3 realizes flow diagram for the specific embodiment one of the optimization method of user's program request of the present invention；
Fig. 4 realizes flow diagram for the specific embodiment two of the optimization method of user's program request of the present invention；
Fig. 5 is the structure diagram of the optimization system of user's program request of the present invention.
Embodiment
The present invention basic thought be：Streaming media server, please to MLSS in program of the local search less than STB program requests
Seek the program；The streaming media server according to the streaming media server address for receiving the redirection that the MLSS is returned and
The parameter information of the program, communicates with the streaming media server of the redirection, obtains programme content and is sent to
STB。
It is by the following examples and referring to the drawings, right for the object, technical solutions and advantages of the present invention are more clearly understood
The present invention is further described.
What Fig. 2 showed the optimization method of user's program request of the present invention realizes flow, as shown in Fig. 2, the described method includes under
State step：
Step 201, streaming media server asks the program in program of the local search less than STB program requests to MLSS；
Wherein, before this step, the method further includes：STB is sent according to play-on-demand program information input by user
Streaming media server of the RTSP signalings to own home；After the streaming media server receives the RTSP signalings, inquiry is originally
Ground whether there is the information of the program.
The streaming media server asks the program to be specially to MLSS：The streaming media server is sent out to the MLSS
Send the request for the index file for obtaining the program；
After the streaming media server is properly received index file URL and the size that the MLSS is returned, to described
MLSS obtains the request of the basic rate file of the program；Wherein, described in being not successfully received when the streaming media server
During the index file that MLSS is returned, program request failure is returned to STB.
Step 202, the streaming media server is according to the streaming media server for receiving the redirection that the MLSS is returned
Address and the parameter information of the program, communicate with the streaming media server of the redirection, and it is concurrent to obtain programme content
Give STB.
Specifically, when the streaming media server is properly received basic rate file URL and the size that the MLSS is returned
Afterwards, by the content delivery request of http protocol by the URL and size of the index file and basic rate file, applied
Http port is sent to the streaming media server of the redirection；
The streaming media server of the redirection send request response to send out the programme content of the STB program requests by content wound
The streaming media server is given, the programme content of acquisition is sent to STB by the streaming media server.
What Fig. 3 showed the specific embodiment one of the optimization method of user's program request realizes flow, as shown in figure 3, embodiment
In one, the streaming media server for specifically illustrating edge content distribution network (CDN) realizes what is communicated with backbone HTTP server
Process, wherein, the backbone HTTP server in Fig. 3 is the streaming media server after redirection；The embodiment one includes following steps
Suddenly：
Step 301, the MLSS saved point receives the on-demand content request that STB is sent；
Step 302-303, the MLSS saved point, will when needing relaying by inquiring about the streaming media server of self-management
Pre-defined needrelay is arranged to 1, and needrelay otherwise is arranged to 0；
Step 304, when needing relaying, the field of needrelay=1 is increased in response URL, and by returning to weight
The response URL is sent to the streaming media server by directed information；
Step 305, the value of streaming media server judges needrelay, when needrelay be 0, perform step 306, when
Needrelay is 1, performs step 307；
Step 306, when needrelay is 0, the media code that streaming media server returns to user's program request flow to the STB；
Step 307, when needrelay is 1, streaming media server divides MLSS to send trunk information query messages to province；
Step 308-309, province divide MLSS to obtain the trunk information to be inquired about from backbone MLSS；
Province divides download location of the MLSS inquiry requests content in backbone HTTP server.Backbone HTTP server is receiving
After Location Request, if desired align_type is index file type (i.e. SubType values are " INDEX "), returned content
Index file download mark；If it is required that the align_type of positioning is basic rate file or speed file, this is returned
The download mark of speed file.Wherein, the TransferSessionID assembly forms in returning response are as follows：
SubType=INDEX index files, are spliced into pathname/XXXX.gyts/index.idx at this timeTime=
Xxx＆life=xxx；
SubType=BASE basic rate files, are spliced into pathname/XXXX.gyts/base.ts at this timetime
=xxx＆life=xxx；
SubType=URI speed files, the TransferContentID patterns asked at this time are " XXXX.gyts/
Forward4.ts ", so being spliced at this time：pathname/TransferContentIDTime=xxx＆life=xxx.
After backbone HTTP server receives streaming media server by saving the content locating request message for dividing MLSS to send, sentence
Disconnected content whether there is, and if so, returning to the transmission port for being positioned content, transmission mark；Otherwise relevant HTTP is returned
Error code, supports the positioning of index file and speed file
Step 310, saving divides MLSS that the trunk information of acquisition is returned to streaming media server；
Wherein, the trunk information includes the parameter information of the streaming media server address and request program redirected
Deng；
Step 311-312, streaming media server is according to the trunk information of acquisition, the streaming media server with redirection, i.e.,
Backbone HTTP server in Fig. 3 communicates, and obtains HTTP code stream；
Specifically, streaming media server sends content delivery request message or content download request to backbone HTTP server
Message, supports the download by scope.Wherein, interface attributes follow standard HTTP1.1 specifications.
Backbone HTTP server is after the content delivery request that streaming media server is sent is received, request content with HTTP
Chunk coding modes are sent to streaming media server, are sent and terminated with the chunk mark contents of 0 length, supported by the interior of scope
Hold load.Wherein, interface attributes follow standard HTTP1.1 specifications.
Step 313, the media code stream of acquisition is returned to STB by streaming media server.
What Fig. 4 showed the specific embodiment two of the optimization method of user's program request realizes flow, as shown in figure 4, embodiment
In two, the streaming media server of ownership and the streaming media server redirected belong to same MLSS management, wherein, redirection
Streaming media server is HTTP server；The embodiment two comprises the following steps：
Step 401, STB sends DESCRIBE request contents to the streaming media server of own home；
Step 402, the streaming media server of the ownership is when local search is less than the request content, according to receiving
The contentid of information searches the request content into the database of MLSS；
Step 403, when the address of the streaming media server where finding the request content, the MLSS is to described
The Streaming Media of ownership returns to the streaming media server address redirected, wherein, the streaming media server address of the redirection is
The address of streaming media server where the request content；
Step 404, the streaming media server of the ownership is to MLSS acquisition request index files；
Step 405, MLSS, which is returned, obtains the successfully streaming media server to the ownership；
Step 406, the streaming media server of the ownership is to MLSS acquisition request basic rate files；
Step 407, MLSS, which is returned, obtains the successfully streaming media server to the ownership；
Step 408, the streaming media server of the ownership returns to 200OK to STB；
Step 409, the STB sends SETUP to the streaming media server of the ownership；
Step 410, the streaming media server of the ownership by MLSS to its database application MSTU resources and HTTP
Port；
Step 411, MLSS is returned successfully；
Step 412, the streaming media server of ownership opens MSTU passages, by index file and basic rate file and
The parameters such as http port are sent to the streaming media server of redirection；
Step 413, the streaming media server of redirection returns to Streaming Media and opens the successfully streaming media server to ownership；
Step 414, the streaming media server of ownership returns to 200OK to STB；
Step 415, STB sends streaming media server of the PLAY signalings to the ownership；
Step 416, the streaming media server of the ownership sends modification MSTU passages signaling and is taken to the Streaming Media of redirection
Business device；
Step 417, the streaming media server of redirection returns to the successfully modified streaming media server to the ownership；
Step 418, the streaming media server of the ownership returns to 200OK to STB, and since then, the transmission of media code stream plays
Success.
Fig. 5 shows the structure of the optimization system of user's program request of the present invention, as shown in figure 5, the system comprises：STB, also
Including：Streaming media server, positioning server of medium MLSS；Wherein,
The streaming media server, in program of the local search less than STB program requests, the section to be asked to MLSS
Mesh；And according to the streaming media server address of the MLSS received the redirections returned, the Streaming Media with the redirection
Server communicates, and obtains programme content and is sent to STB.
Wherein, the STB, for according to play-on-demand program information input by user, sending RTSP signalings to own home
Streaming media server；
The streaming media server, after receiving the RTSP signalings, inquiry is local to whether there is the section
Purpose information.
Wherein, the streaming media server, the index file of the program is obtained specifically for being sent to the MLSS
Request；After index file URL and the size that the MLSS is returned is properly received, the basic of the program is obtained to the MLSS
The request of speed file.
Wherein, the streaming media server, specifically for when being not successfully received the index file that the MLSS is returned, giving
The STB returns to program request failure.
Wherein, the streaming media server, specifically for as the basic rate file URL for being properly received the MLSS returns
And after size, by the content delivery request of http protocol by the URL and size of the index file and basic rate file, Shen
Http port please is sent to the streaming media server of the redirection；
The streaming media server of the redirection, specifically for sending request response by the STB program requests by content wound
Programme content is sent to the streaming media server, and the programme content of acquisition is sent to STB by the streaming media server.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (8)
- A kind of 1. optimization method of user's program request, it is characterised in that the described method includes：STB sends streaming media server of the RTSP signalings to own home according to play-on-demand program information input by user；After the streaming media server receives the RTSP signalings, inquiry is local to whether there is the program；Streaming media server is asked in program of the local search less than set-top box STB program requests to positioning server of medium MLSS The program；The streaming media server is according to the streaming media server address and the section for receiving the redirection that the MLSS is returned Purpose parameter information, communicates with the streaming media server of the redirection, obtains programme content and is sent to STB；Wherein, The streaming media server of redirection is HTTP server.
- 2. according to the method described in claim 1, it is characterized in that, the streaming media server asks the section to the MLSS Mesh is：The streaming media server sends the request for the index file for obtaining the program to the MLSS；After the streaming media server is properly received index file URL and the size that the MLSS is returned, obtained to the MLSS Take the request of the basic rate file of the program.
- 3. according to the method described in claim 2, it is characterized in that, the streaming media server is sent to the MLSS obtains institute After the request for stating the index file of program, the method further includes：When the streaming media server is not successfully received the index file that the MLSS is returned, program request failure is returned to STB.
- 4. according to the method described in claim 2, it is characterized in that, the streaming media server is returned according to the MLSS is received The streaming media server address of redirection returned and the parameter information of the program, with the streaming media server of the redirection Location communicates, and obtains programme content and is sent to STB and is：After the streaming media server is properly received basic rate file URL and the size that the MLSS is returned, pass through HTTP The content delivery request of agreement sends out the URL and size of the index file and basic rate file, the http port applied Give the streaming media server of the redirection；The streaming media server of the redirection is responded by content delivery request and sends the programme content of the STB program requests To the streaming media server, the programme content of acquisition is sent to STB by the streaming media server.
- 5. a kind of optimization system of user's program request, including set-top box STB, it is characterised in that the system also includes：Streaming Media takes Be engaged in device, positioning server of medium MLSS；Wherein,The streaming media server, in program of the local search less than STB program requests, the program to be asked to MLSS；And According to the streaming media server address of the MLSS received the redirections returned, the streaming media server with the redirection Communicate, obtain programme content and be sent to STB；Wherein, the streaming media server of redirection is HTTP server；The STB, for according to play-on-demand program information input by user, sending streaming media service of the RTSP signalings to own home Device；The streaming media server, after receiving the RTSP signalings, inquiry is local to whether there is the program.
- 6. system according to claim 5, it is characterised in that the streaming media server, specifically for the MLSS Send the request for the index file for obtaining the program；After index file URL and the size that the MLSS is returned is properly received, The request of the basic rate file of the program is obtained to the MLSS.
- 7. system according to claim 6, it is characterised in that the streaming media server, specifically for that ought connect not successfully When receiving the index file that the MLSS is returned, program request failure is returned to the STB.
- 8. system according to claim 6, it is characterised in that the streaming media server, specifically for when successful reception It is by the content delivery request of http protocol that the index is literary after basic rate file URL and size that the MLSS is returned URL and size, the http port of application of part and basic rate file are sent to the streaming media server of the redirection；The streaming media server of the redirection, specifically for being responded by content delivery request by the program of the STB program requests Content is sent to the streaming media server, and the programme content of acquisition is sent to STB by the streaming media server.
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| CN102802052A (en) * | 2012-08-16 | 2012-11-28 | 中兴通讯股份有限公司 | Video on demand program method and device |
| CN103873956B (en) * | 2012-12-12 | 2018-02-13 | 中国电信股份有限公司 | Media file playing method, system, player, terminal and media storage platform |
| US10225319B2 (en) | 2013-09-30 | 2019-03-05 | Telefonaktiebolaget Lm Ericsson (Publ) | System and method of a link surfed http live streaming broadcasting system |
| BR112017000726B1 (en) | 2014-07-17 | 2022-02-08 | Siemens Aktiengesellschaft | METHOD, DEVICE AND EQUIPMENT FOR DETECTION OF BROKEN CONDUCTOR AND MACHINE-READable MEDIUM BY NON-TRANSITORY |
| CN106953892B (en) * | 2017-02-14 | 2020-08-07 | 北京时间股份有限公司 | Method, device and system for acquiring file |
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