CN101729857A - Method for accessing video service and video playing system - Google Patents
Method for accessing video service and video playing system Download PDFInfo
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- CN101729857A CN101729857A CN200910221587.8A CN200910221587A CN101729857A CN 101729857 A CN101729857 A CN 101729857A CN 200910221587 A CN200910221587 A CN 200910221587A CN 101729857 A CN101729857 A CN 101729857A
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- authentication code
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/6437—Real-time Transport Protocol [RTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
- H04N21/6581—Reference data, e.g. a movie identifier for ordering a movie or a product identifier in a home shopping application
Abstract
The invention provides a method for accessing video service and a video playing system. The method comprises the following steps of: generating a URL (Uniform Resource Locator) played by an RTSP (Real Time Streaming Protocol) when a video service request sent by a playing terminal is received, appending an authentication code to the URL, setting the authentication code as a predetermined value and sending the URL to the playing terminal; judging whether the predetermined value of the authentication code appended to the request message is valid when a request message of establishing an RTSP link sent by the playing terminal is received, deleting the authentication code or setting the authentication code as invalid if the predetermined value is valid, and establishing the RTSP link with the playing terminal. The invention can prevent the illegal user against stealing the link and ensure the security and reliability of the video playing.
Description
Technical field
The present invention relates to prevent in the interactive Web TV system that the user from illegally stealing a kind of method and audio/video player system that inserts Video service of chain.
Background technology
Along with the development of video media technology, for example carrying out in a deep going way of interactive Web TV system (also claiming the IPTV system) technology used the increase of number of users, and the reliability and the fail safe of system are had higher requirement.IPTV not only provides the colourful Electronic Program Guide page as a kind of video media service business, and multiple value-added services such as information, recreation, Karaoke also are provided simultaneously.IPTV mainly refers to provide Video service by broadband internet for the user, and following business function can be provided: live, time-moving television, program request, wheel are broadcast, other value-added services etc.
When the user carries out video-on-demand service, at first by electronic program list (Electronic ProgramGuide, be called for short EPG) select the video content (live or program request) that will watch, obtain RTSP (the Real Time Streaming Protocol of service, real time streaming transport protocol) broadcast URL (UniformResource Locator, URL(uniform resource locator)), set-top box or video playing terminal are set up the RTSP link by the media server of this URL and service and are carried out Video service.Because the business of IPTV is based on the business of the Internet, normal user can obtain the URL of the RTSP broadcast of Video service by clicking the displayed page of EPG module.Meanwhile, some disabled users also can be by packet capturing, various means such as intercept, obtain the URL that this user obtains, and use this URL illegally to insert MDP (Media Distribute Patform, the distribution of media platform) system, the Video service that receiving stream media provides, this similar behavior, we are referred to as to steal chain.Because the behavior meeting of this kind robber chain causes validated user and benefits of operators to suffer damage,, become video media and play the new problem that industry (particularly IPTV industry) faces so how to prevent to steal the technology of chain.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method and audio/video player system that inserts Video service, steals chain to prevent the disabled user, guarantees the fail safe and the reliability of video playback.
In order to solve the problems of the technologies described above, the invention provides a kind of method that inserts Video service, comprising:
When receiving the Video service request that playback terminal sends, generate the URL(uniform resource locator) (URL) that real time streaming transport protocol (RTSP) is play, in described URL, add an authentication code, and described authentication code is made as predetermined value, then described URL is sent to playback terminal;
When receive that playback terminal sends set up the request message of RTSP link the time, judge whether the predetermined value of authentication code subsidiary in the described request message effective, if effectively,, set up the RTSP link with playback terminal then with described authentication code deletion or be set to invalidly.
Further, said method has following characteristics: also comprised before described generation URL: authentication is carried out in described Video service request.
Further, said method has following characteristics: also comprised before described generation URL: generate described authentication code with ad hoc rules.
Further, said method has following characteristics: before described URL is sent to playback terminal, also comprise: the information of preserving described authentication code.
The present invention also provides a kind of audio/video player system, comprising: service managing server and streaming media server, wherein,
Described service managing server, be used for when receiving the Video service request that playback terminal sends, generate the URL(uniform resource locator) (URL) that real time streaming transport protocol (RTSP) is play, additional authentication code in described URL, and described authentication code is made as predetermined value, then described URL is sent to playback terminal; When being used to receive the authentication code that streaming media server sends, judge whether the predetermined value of described authentication code is effective, if effectively, then with described authentication code deletion or be set to invalidly, the co-current flow media server sends authentication success message;
Described streaming media server is used to receive that playback terminal sends when setting up the request message of RTSP link, and authentication code subsidiary in the described request message is sent to service managing server; Set up the RTSP link with playback terminal after being used to receive the authentication success message that described service managing server sends.
Further, above-mentioned audio/video player system has following characteristics: described service managing server comprises electronic programming single module and application platform module, wherein,
Described electronic programming single module is used for sending a signal to the application platform module when receiving the Video service request; Be used to generate described URL, behind the authentication code that additional described application platform module is sent in described URL described URL sent to playback terminal;
Described application platform module is used to receive generate an authentication code behind the described signal, sends to the electronic programming single module after described authentication code is made as predetermined value; Be used for when receiving the authentication code that described streaming media server sends, judging whether the predetermined value of described authentication code effective, if effectively, then with described authentication code deletion or be set to invalid, then to described streaming media server return authentication success message.
Further, above-mentioned audio/video player system has following characteristics:
Described electronic programming single module also is used for sending authentication request to the application platform module when receiving the Video service request,
Described application platform module after also being used to receive described authentication request, is carried out authentication to described Video service request, if the authentication success then generates an authentication code.
Further, above-mentioned audio/video player system has following characteristics:
Described application platform module also is used for described authentication code is made as the information of preserving described authentication code after the predetermined value.
To sum up, the method for access Video service provided by the invention and audio/video player system can prevent that the disabled user from stealing chain, guarantee the fail safe and the reliability of video playback; Effectively utilized the authentication mechanism of original access Video service flow process, the feasible process that produces the authentication code of RTSP can not brought new burden for system; Give full play to the service ability of each EPG, guarantee that business management system has sustained serviceability preferably; Improve the fail safe of interactive Web TV system and media play link greatly, guaranteed the legitimate interests of user and operator.
Description of drawings
Fig. 1 is the schematic diagram of the audio/video player system of the embodiment of the invention;
Fig. 2 is the flow chart of method of the access Video service of the embodiment of the invention;
Fig. 3 is the flow chart of application example of method of the access Video service of the embodiment of the invention.
Embodiment
The main solution of the present invention is, when the broadcast URL of disabled user by the RTSP of the program that obtains inserts in the audio/video player system, the access that service managing server can be judged this user is illegal the access or legal access, then refuse to provide service for illegal access, thereby realize stopping the possibility that the disabled user steals chain.Therefore, key of the present invention is: in order to realize the anti-illegal chain of stealing, must guarantee that the URL that each RTSP that serves plays can only provide once service.
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
Fig. 1 is the schematic diagram of the audio/video player system of the embodiment of the invention, and as shown in Figure 1, the audio/video player system of present embodiment comprises: service managing server and streaming media server.
When service managing server receives the Video service request, service managing server generates the URL that real time streaming transport protocol (RTSP) is play, wherein URL adds an authentication code, and the state of authentication code is not made as use, and the URL that will attach authentication code then sends to playback terminal.
In the present embodiment, service managing server can comprise EPG module and application platform module, when the EPG module receives the Video service request that playback terminal sends, after application platform module initiation authentication request application platform module receives this authentication request, authentication is carried out in this Video service request, judge whether the user has ordered this program, if authentication is passed through, then generate an authentication code, this authentication code generates according to certain rule, with the authentication code that guarantees can not duplicate.If authentication is not passed through, then return a failed authentication message, to notify the user to the EPG module.After authentication code generated, the application platform module was made as predetermined value with the state of authentication code, did not for example use.Further, the application platform module is preserved the relevant information of this authentication code.The application platform module is returned authentication by message to the EPG module then, carries the authentication code that is generated.The EPG module receives that authentication passes through to generate the URL that RTSP plays after the message, then this URL and authentication code is sent to playback terminal.
When streaming media server receive that playback terminal sends set up the request message of RTSP link the time, parse authentication code subsidiary in the described request message, described authentication code is sent to service managing server, particularly, authentication code is sent to the application platform module.
Service managing server (promptly, when the application platform module) receiving the authentication code that streaming media server sends, the predetermined value of described authentication code is carried out verification, if authentication code is effective, then to streaming media server return authentication success message, and with this authentication code deletion or be set to invalid; Streaming media server is set up the RTSP link with playback terminal after receiving the authentication success message that service managing server sends.
Like this when the stolen chain of media play link, it is invalid or deleted that the authentication code that attaches among the URL that the RTSP that the disabled user obtains plays has been set to, then service managing server does not pass through the authentication of this authentication code, co-current flow media server return authentication failed message; Streaming media server receives the authentification failure message that service managing server is sent, and does not then set up the RTSP link with playback terminal, thereby prevents that the disabled user from stealing chain, guarantees the fail safe and the reliability of video playback.
The audio/video player system of present embodiment can be the IPTV system, also can be ChinaVnet system etc.
Fig. 2 is the flow chart of method of the access Video service of the embodiment of the invention, and as shown in Figure 2, the method for present embodiment may further comprise the steps:
101, set-top box or other playback terminal initiate to carry out the Video service request to audio/video player system (for example IPTV system);
For example, the user carries out Video service (comprising live program request etc.) by electronic program list (EPG) module of service managing server.
102, audio/video player system generates the URL that RTSP plays, an additional token (Token also can be called authentication code) in URL;
Service managing server generates an authentication code according to certain rule, and the authentication code that assurance can not duplicate after authentication code generates, is not made as use with its state.
103, audio/video player system is preserved the recorded information of this authentication code.
104, initiation of set-top box or other playback terminal and audio/video player system are set up the RTSP link;
Streaming media server receives that playback terminal sends when setting up the request message of RTSP link, and streaming media server triggers the request of service beginning to service managing server, and is subsidiary from playing the authentication code that URL parses in solicited message.
105, audio/video player system judges whether authentication code exists and effectively;
Service managing server receives when service that streaming media server sends begins to ask, and judges whether authentication code exists and effectively, if authentication code exists and effectively, then changes step 106 over to; Otherwise change step 108 over to.
106, audio/video player system is set to invalid the corresponding authentication code of this time service or deletion;
Service managing server is to streaming media server return authentication success message, and is set to invalid the corresponding authentication code of this time service or deletion simultaneously.
107, audio/video player system and playback terminal are set up the RTSP link;
Streaming media server is received after the authentication success message of service managing server and playback terminal is set up the RTSP link and Video service is provided.
108, refusal provides Video service;
When the user illegally obtains the URL of RTSP broadcast by means such as packet capturings after, the media play request of initiating to streaming media server immediately, owing to authentication code corresponding among the URL that illegally obtains the RTSP broadcast is used by validated user, the state of this authentication code has been set to invalid or deleted, so service managing server is given streaming media server return authentication failure information.
After streaming media server was received the authentication failure message that service managing server returns, refusing provided service for this user, thereby had effectively prevented to steal the generation of chain situation.
Fig. 3 is that as shown in Figure 3, concrete steps are as follows according to the flow chart of the application example of the method for the access Video service of the embodiment of the invention:
201: set-top box or other playback terminal are initiated VOD (Video-On-Demand, video request program) or direct broadcast service request to the EPG module;
The 202:EPG module is initiated authentication request to backstage APP (application platform, application platform) module, and service managing server comprises EPG module and APP module;
The 203:APP module is carried out authentication to the user, judge whether the user has ordered this program, if this user can this program of program request, for this time service generates a token (Token), and in service managing server, preserve this token Token information, the state of this token is not made as use, and the APP module returns to the EPG module with token (Token) information then;
The 204:EPG module generates the URL of the RTSP broadcast of service this time, and the token (Token) that subsidiary this service generates among the URL sends to playback terminal with this URL that has token.
205: playback terminal connects by URL and the SS (Streaming Server, streaming media server) that RTSP plays, the request Video service.
206:SS extracts the token information among the URL, and the service of sending to the APP module begins request, carries out the legitimacy verification.
The 207:APP module receives when service that SS sends begins to ask, and judges whether token information exists and effectively, if token is that effectively then execution in step 208, otherwise execution in step 209.
The 208:APP module is to SS back-checking success message, and is set to this time service corresponding token (Token) invalid simultaneously or deletes this token.
209:SS begins to provide Video service to the user.
The 210:APP module is to SS back-checking failed message, and SS refuses to provide service to the user.
The method of the access Video service of present embodiment can be applied to all video fields, as IPTV, ChinaVnet etc.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (8)
1. method that inserts Video service comprises:
When receiving the Video service request that playback terminal sends, generate the URL(uniform resource locator) (URL) that real time streaming transport protocol (RTSP) is play, in described URL, add an authentication code, and described authentication code is made as predetermined value, then described URL is sent to playback terminal;
When receive that playback terminal sends set up the request message of RTSP link the time, judge whether the predetermined value of authentication code subsidiary in the described request message effective, if effectively,, set up the RTSP link with playback terminal then with described authentication code deletion or be set to invalidly.
2. the method for claim 1 is characterized in that: also comprised before described generation URL: authentication is carried out in described Video service request.
3. the method for claim 1 is characterized in that: also comprised before described generation URL: generate described authentication code with ad hoc rules.
4. as each described method of claim 1-3, it is characterized in that: before described URL is sent to playback terminal, also comprise: the information of preserving described authentication code.
5. audio/video player system comprises: service managing server and streaming media server, wherein,
Described service managing server, be used for when receiving the Video service request that playback terminal sends, generate the URL(uniform resource locator) (URL) that real time streaming transport protocol (RTSP) is play, additional authentication code in described URL, and described authentication code is made as predetermined value, then described URL is sent to playback terminal; When being used to receive the authentication code that streaming media server sends, judge whether the predetermined value of described authentication code is effective, if effectively, then with described authentication code deletion or be set to invalidly, the co-current flow media server sends authentication success message;
Described streaming media server is used to receive that playback terminal sends when setting up the request message of RTSP link, and authentication code subsidiary in the described request message is sent to service managing server; Set up the RTSP link with playback terminal after being used to receive the authentication success message that described service managing server sends.
6. audio/video player system as claimed in claim 5 is characterized in that: described service managing server comprises electronic programming single module and application platform module, wherein,
Described electronic programming single module is used for sending a signal to the application platform module when receiving the Video service request; Be used to generate described URL, behind the authentication code that additional described application platform module is sent in described URL described URL sent to playback terminal;
Described application platform module is used to receive generate an authentication code behind the described signal, sends to the electronic programming single module after described authentication code is made as predetermined value; Be used for when receiving the authentication code that described streaming media server sends, judging whether the predetermined value of described authentication code effective, if effectively, then with described authentication code deletion or be set to invalid, then to described streaming media server return authentication success message.
7. audio/video player system as claimed in claim 6 is characterized in that:
Described electronic programming single module also is used for sending authentication request to the application platform module when receiving the Video service request,
Described application platform module after also being used to receive described authentication request, is carried out authentication to described Video service request, if the authentication success then generates an authentication code.
8. as each described audio/video player system of claim 5-7, it is characterized in that:
Described application platform module also is used for described authentication code is made as the information of preserving described authentication code after the predetermined value.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910221587.8A CN101729857A (en) | 2009-11-24 | 2009-11-24 | Method for accessing video service and video playing system |
| PCT/CN2010/078961 WO2011063731A1 (en) | 2009-11-24 | 2010-11-22 | Method for accessing video service and video playing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910221587.8A CN101729857A (en) | 2009-11-24 | 2009-11-24 | Method for accessing video service and video playing system |
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- 2009-11-24 CN CN200910221587.8A patent/CN101729857A/en active Pending
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2010
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| WO2011063731A1 (en) | 2011-06-03 |
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