CN105430431A - Multimedia data playing method and device - Google Patents

Multimedia data playing method and device Download PDF

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Publication number
CN105430431A
CN105430431A CN201510750631.XA CN201510750631A CN105430431A CN 105430431 A CN105430431 A CN 105430431A CN 201510750631 A CN201510750631 A CN 201510750631A CN 105430431 A CN105430431 A CN 105430431A
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China
Prior art keywords
environment parameter
playing
medium data
playing environment
user terminal
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Granted
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CN201510750631.XA
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Chinese (zh)
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CN105430431B (en
Inventor
冯亚楠
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201510750631.XA priority Critical patent/CN105430431B/en
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Classifications

    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H04N21/2351—Processing of additional data, e.g. scrambling of additional data or processing content descriptors involving encryption of additional data
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • H04N21/4353—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream involving decryption of additional data

Abstract

The invention discloses a multimedia data playing method, and belongs to the field of digital multimedia. The method comprises the steps: detecting a first playing environment parameter of a user terminal when a multimedia data playing instruction is received, wherein the first playing environment parameter at least comprises a geographic position; transmitting a multimedia data playing request to a server, wherein the multimedia data playing request comprises the first playing environment parameter and a multimedia identification; receiving a multimedia data ciphertext and an encrypted key, which are returned by the server based on the multimedia identification after the authority verification based on the first playing environment parameter; carrying out the analysis of the multimedia data ciphertext based on the encrypted key, and carrying out the playing of the multimedia data. The method prevents the multimedia data from being played in a region where the multimedia data is not allowed to be played through the authority verification of the playing environment parameter, and guarantees the safety of the multimedia data.

Description

Multimedia data playing method and device
Technical field
The present invention relates to digital multimedia field, particularly a kind of multimedia data playing method and device.
Background technology
Along with the development of the Internet, based on the multimedia service of the Internet also in rapid emergence, user can use user terminal to carry out multimedia viewing whenever and wherever possible, such as intelligent TV set, Smartphone device, panel computer, individual notebook etc.Simultaneously along with user plays increasing concern to multi-medium data, multimedia data playing method also starts to seem particularly important.
At present, server can obtain multi-medium data from multimedia platform, and is encrypted this multi-medium data, obtains the ciphertext of this multi-medium data, and then the ciphertext of this multi-medium data is stored.And when server receives the multimedia request of user terminal transmission, this server can based on the user ID of carrying in this multimedia request, authentication is carried out to this user terminal, if the verification passes, then based on the multi-media tag carried in this multimedia request, from the ciphertext of the multi-medium data stored, obtain the ciphertext of corresponding multi-medium data, and the ciphertext of the multi-medium data of acquisition and encryption key are sent to this user terminal.When this user terminal receives ciphertext and the encryption key of this multi-medium data, this user terminal based on this encryption key, can be decrypted the ciphertext of this multi-medium data, and then plays the multi-medium data after deciphering.
Realizing, in process of the present invention, finding after deliberation, at least there is following problem in prior art:
Due to when user terminal requests play multimedia data, this user terminal may be in the region of forbidding playing this multi-medium data, that is to say, this multi-medium data cannot be play in the region that some limit, therefore, forbid that this multi-medium data is play in the region of playing at this, the leakage of multi-medium data may be caused.
Summary of the invention
In order to solve the problem of prior art, embodiments provide a kind of multimedia data playing method and device.Described technical scheme is as follows:
First aspect, provides a kind of multimedia data playing method, and described method comprises:
When receiving multi-medium data play instruction, detect the first playing environment parameter of user terminal, described first playing environment parameter at least comprises geographical position;
Send multi-medium data playing request to server, in described multi-medium data playing request, carry described first playing environment parameter and multi-media tag;
Receive described server and carry out authorization check based on described first playing environment parameter, and at authorization check by returning ciphertext and the encryption key of multi-medium data afterwards based on described multi-media tag;
The ciphertext of resolving described multi-medium data based on described encryption key carries out the broadcasting of multi-medium data.
In embodiments of the present invention, the broadcasting of geographical position to multi-medium data based on user terminal limits, when user terminal plays this multi-medium data, server can be made to carry out authorization check to the geographical position of this user terminal, if authorization check does not pass through, then determine the geographical position of this user terminal be in forbid play region within, this multi-medium data cannot be play, avoiding this multi-medium data forbidding that the region of playing is play, ensure that the fail safe of multi-medium data.
In the implementation that the another kind of above-mentioned first aspect is possible, described first playing environment parameter also comprises at least one in following parameter:
Display device parameter, network environment, type of user terminal.
It should be noted that, display device parameter refers to the configuration parameter of the display device that user terminal comprises, and such as, display device parameter can be display device type, display device resolution etc.; Network environment refers to network type, Internet protocol address etc. that user terminal uses, and such as, network type can be fixed network, mobile network etc.; Type of user terminal refers to that user terminal is fixing user terminal or mobile subscriber terminal.
Along with the progress of science and technology; also other parameters will be comprised in first playing environment parameter; such as; reproduction time parameter etc.; and the scope that the first playing environment parameter comprises is more; just can carry out from many aspects the authorization check of playing environment, add the flexibility of authorization check, better can protect multi-medium data simultaneously.
In conjunction with first aspect, in the first possible implementation of upper first aspect, described ciphertext of resolving described multi-medium data based on described encryption key also comprises after carrying out the broadcasting of multi-medium data:
In the playing process of described multi-medium data, obtain the second playing environment parameter of described user terminal;
Based on described first playing environment parameter, judge whether described second playing environment parameter changes;
If described second playing environment parameter changes, then to described server sending permission check request, in described authorization check request, carry described second playing environment parameter;
When receive described server and carry out authorization check based on described second playing environment parameter and the verification returned response time, respond based on described verification, the broadcasting of described multi-medium data controlled.
In order to protect this multi-medium data in real time, in the playing process of this multi-medium data, this user terminal can also detect the second playing environment parameter of this user terminal.
In the implementation that the another kind of above-mentioned first aspect is possible, described based on described first playing environment parameter, judge whether described second playing environment parameter changes, and comprising:
Judge that whether described first playing environment parameter is identical with described second playing environment parameter;
If described first playing environment parameter is identical with described second playing environment parameter, then determine that described second playing environment parameter does not change, otherwise, determine that described second playing environment parameter changes.
In conjunction with the first possible implementation of first aspect, in the implementation that the second of above-mentioned first aspect is possible, described based on described first playing environment parameter, judge whether described second playing environment parameter changes, and comprising:
Obtain playing environment parameter fluctuation scope;
Determine the difference between described first playing environment parameter and described second playing environment parameter, described difference is defined as fluctuation parameters;
Judge whether described fluctuation parameters is positioned within described playing environment parameter fluctuation scope;
If described fluctuation parameters is positioned within described playing environment parameter fluctuation scope, then determine that described second playing environment parameter does not change, otherwise, determine that described second playing environment parameter changes.
Because user terminal is in the process of play multimedia data, can detect the playing environment parameter of this user terminal in real time or periodically, and whenever detecting that the second playing environment parameter changes, this user terminal all can to server sending permission check request, when adopting the possible implementation of the another kind of above-mentioned first aspect to judge whether the second playing environment parameter changes, the accuracy that the second playing environment Parameters variation situation is judged can be improved.And if the second playing environment parameter compare the first playing environment parameter fluctuation less and fluctuation after the second playing environment parameter also can pass through authorization check, now, again to the resource wasting user terminal during server sending permission check request, and the interaction times between adding users terminal and server, therefore, when judging whether the second playing environment parameter changes based on the implementation that the second of above-mentioned first aspect is possible, the resource of user terminal can be saved, reduce the interaction times between user terminal and server.
In conjunction with the first possible implementation of first aspect, in the third possible implementation of above-mentioned first aspect, described based on described verification response, the broadcasting of described multi-medium data is controlled, comprising:
Judge whether carry appointment error code in described verification response;
If carry described appointment error code in described verification response, then stop the broadcasting of described multi-medium data.
Because user terminal can store the corresponding relation of specifying between error code and this information, when user terminal stops the broadcasting of this multi-medium data, this user terminal can respond based on this verification the appointment error code carried, obtain corresponding information from the appointment error code stored with the corresponding relation between information, make user clearly recognize the reason that multi-medium data cannot be play.
Second aspect, provides another kind of multimedia data playing method, and described method comprises:
Receive the multi-medium data playing request that user terminal sends, carry the first playing environment parameter and multi-media tag in described multi-medium data playing request, described first playing environment parameter at least comprises geographical position;
Based on described first playing environment parameter, authorization check is carried out to described user terminal;
If authorization check passes through, then the ciphertext of multi-medium data corresponding for described multi-media tag and encryption key are sent to described user terminal, described encryption key is used for the ciphertext of resolving described multi-medium data when carrying out multi-medium data and playing.
Server limits based on the broadcasting of geographical position to multi-medium data of user terminal, when user terminal requests play multimedia data, this server can carry out authorization check to the geographical position at this user terminal place, if authorization check does not pass through, then determine the geographical position of this user terminal be in forbid play region within, and refusal sends the ciphertext of encryption key and multi-medium data to this user terminal, make this user terminal cannot play this multi-medium data, avoid this multi-medium data and forbidding that the region of playing is play, ensure that the fail safe of multi-medium data.
In the first possible implementation of above-mentioned second aspect, described based on described first playing environment parameter, authorization check is carried out to described user terminal, comprising:
Judge whether described first playing environment parameter meets specified requirements, described specified requirements at least comprises geographical position and is positioned within specified geographic location set;
If described first playing environment parameter meets described specified requirements, then determine that the authorization check of described user terminal passes through, otherwise, determine that the authorization check of described user terminal does not pass through.
In the implementation that the another kind of above-mentioned second aspect is possible, described first playing environment parameter also comprises at least one in following parameter:
Display device parameter, network environment, type of user terminal.
In conjunction with the arbitrary possible implementation in the first possible implementation of second aspect or second aspect, in the implementation that the second of above-mentioned second aspect is possible, described the ciphertext of multi-medium data corresponding for described multi-media tag and encryption key are sent to described user terminal after, also comprise:
Receive described user terminal sending permission check request, in described authorization check request, carry the second playing environment parameter;
Based on described second playing environment parameter, authorization check is carried out to described user terminal;
If authorization check does not pass through, then send verification response to described user terminal, in described verification response, carry appointment error code.
The multi-medium data playing request sent when user terminal is program request playing request, and this authorization check is obstructed out-of-date, this server not only can send verification response to this user terminal, user terminal is responded based on this verification, the broadcasting of this multi-medium data is controlled, this server can also stop the ciphertext sending multi-medium data to user terminal, makes user terminal cannot continue the ciphertext of play multimedia data.
In the implementation that the another kind of above-mentioned second aspect is possible, described based on described first playing environment parameter, before authorization check is carried out to described user terminal, also comprise:
Condition of acceptance arranges instruction, carries conditional parameter in described condition setting instruction;
Based on described conditional parameter, the specified requirements that described multi-medium data is play is set.
Because authorization check is realized by this specified requirements, and this specified requirements can be arranged in advance, and the keeper of server can arrange different specified requirementss according to different multi-medium datas, which increases the flexibility of authorization check.
The third aspect, provide a kind of multi-medium data playing device, described device comprises:
First acquisition module, for when receiving multi-medium data play instruction, obtain the first playing environment parameter of user terminal, described first playing environment parameter at least comprises geographical position;
First sending module, for sending multi-medium data playing request to server, carries described first playing environment parameter and multi-media tag in described multi-medium data playing request;
Receiver module, carries out authorization check for receiving described server based on described first playing environment parameter, and at authorization check by returning ciphertext and the encryption key of multi-medium data afterwards based on described multi-media tag;
Playing module, the ciphertext for resolving described multi-medium data based on described encryption key carries out the broadcasting of multi-medium data.
In the implementation that the another kind of the above-mentioned third aspect is possible, described first playing environment parameter also comprises at least one in following parameter:
Display device parameter, network environment, type of user terminal.
In conjunction with the third aspect, in the first possible implementation of the above-mentioned third aspect, described device also comprises:
Second acquisition module, in the playing process of described multi-medium data, obtains the second playing environment parameter of described user terminal;
Judge module, for based on described first playing environment parameter, judges whether described second playing environment parameter changes;
Second sending module, if changed for described second playing environment parameter, then to described server sending permission check request, carries described second playing environment parameter in described authorization check request;
Control module, for when receive described server and carry out authorization check based on described second playing environment parameter and the verification returned response time, respond based on described verification, the broadcasting of described multi-medium data controlled.
In the implementation that the another kind of the above-mentioned third aspect is possible, described judge module also comprises:
For judging that whether described first playing environment parameter is identical with described second playing environment parameter;
If identical with described second playing environment parameter for described first playing environment parameter, then determine that described second playing environment parameter does not change, otherwise, determine that described second playing environment parameter changes.
In conjunction with the first possible implementation of the third aspect, in the implementation that the second of the above-mentioned third aspect is possible, described judge module comprises:
Acquiring unit, for obtaining playing environment parameter fluctuation scope;
First determining unit, for determining the difference between described first playing environment parameter and described second playing environment parameter, is defined as fluctuation parameters by described difference;
First judging unit, for judging whether described fluctuation parameters is positioned within described playing environment parameter fluctuation scope;
Second determining unit, if be positioned within described playing environment parameter fluctuation scope for described fluctuation parameters, then determines that described second playing environment parameter does not change, otherwise, determine that described second playing environment parameter changes.
In conjunction with the first possible implementation of the third aspect, in the third possible implementation of the above-mentioned third aspect, described control module comprises:
Second judging unit, for judging whether carry appointment error code in described verification response;
Stop element, if for carrying described appointment error code in described verification response, then stop the broadcasting of described multi-medium data.
Fourth aspect, provide another kind of multi-medium data playing device, described device comprises:
First receiver module, for receiving the multi-medium data playing request that user terminal sends, carry the first playing environment parameter and multi-media tag in described multi-medium data playing request, described first playing environment parameter at least comprises geographical position;
First correction verification module, for based on described first playing environment parameter, carries out authorization check to described user terminal;
First sending module, if passed through for authorization check, then the ciphertext of multi-medium data corresponding for described multi-media tag and encryption key are sent to described user terminal, described encryption key is used for the ciphertext of resolving described multi-medium data when carrying out the broadcasting of multi-medium data.
In conjunction with fourth aspect, in the first possible implementation of above-mentioned fourth aspect, described first correction verification module comprises:
Judging unit, for judging whether described first playing environment parameter meets specified requirements, described specified requirements at least comprises geographical position and is positioned within specified geographic location set;
Determining unit, if meet described specified requirements for described first playing environment parameter, then determines that the authorization check of described user terminal passes through, otherwise, determine that the authorization check of described user terminal does not pass through.
In the implementation that the another kind of above-mentioned fourth aspect is possible, described first playing environment parameter also comprises at least one in following parameter:
Display device parameter, network environment, type of user terminal.
In conjunction with the arbitrary possible implementation in the implementation that the second of fourth aspect or fourth aspect is possible, in the implementation that the second of above-mentioned fourth aspect is possible, described device also comprises:
Second receiver module, for receiving described user terminal sending permission check request, carries the second playing environment parameter in described authorization check request;
Second correction verification module, based on described second playing environment parameter, carries out authorization check to described user terminal;
Second sending module, if authorization check does not pass through, then sends verification response to described user terminal, carries appointment error code in described verification response.
In the implementation that the another kind of above-mentioned fourth aspect is possible, described device also comprises:
Instruction is set for condition of acceptance, in described condition setting instruction, carries conditional parameter;
Module is set, for based on described conditional parameter, the specified requirements that described multi-medium data is play is set.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: in embodiments of the present invention, the playing environment of user terminal to self detects, obtain the first playing environment parameter, and this first playing environment parameter is sent to server, wherein, at least geographical position is comprised in this first playing environment parameter, thus server can carry out authorization check based on this first playing environment parameter, when authorization check passes through, that is to say, time within the region that the geographical position in the first playing environment parameter is positioned at this multi-medium data permission broadcasting, the ciphertext of multi-medium data and encryption key can be sent to user terminal by this server, make this user terminal can carry out the broadcasting of multi-medium data, and when this geographical position be positioned at this multi-medium data forbid play region time, the ciphertext of this multi-medium data and encryption key are not sent to user terminal by this server, thus make user terminal cannot play this multi-medium data, avoid this multi-medium data and forbid the leakage of play area, ensure that the fail safe of multi-medium data.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of multimedia data play system Organization Chart that the embodiment of the present invention provides.
Fig. 2 is a kind of multimedia data playing method flow chart that the embodiment of the present invention provides.
Fig. 3 is the structural representation of a kind of server that the embodiment of the present invention provides.
Fig. 4 is that the one that the embodiment of the present invention provides plays permission control device schematic diagram.
Fig. 5 is the first multi-medium data playing device structural representation that the embodiment of the present invention provides.
Fig. 6 is the second multi-medium data playing device structural representation that the embodiment of the present invention provides.
Fig. 7 is the third multi-medium data playing device structural representation that the embodiment of the present invention provides.
Fig. 8 is the 4th kind of multi-medium data playing device structural representation that the embodiment of the present invention provides.
Fig. 9 is the 5th kind of multi-medium data playing device structural representation that the embodiment of the present invention provides.
Figure 10 is the 6th kind of multi-medium data playing device structural representation that the embodiment of the present invention provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Before in detail explanation is explained to the embodiment of the present invention, first the system architecture of the embodiment of the present invention is introduced.A kind of multimedia data play system Organization Chart that Fig. 1 provides for the embodiment of the present invention, as shown in Figure 1, this system comprises multimedia source, user terminal and server, this multimedia source can be connected by network with between server, also can be connected by network between server with user terminal.Wherein, multimedia source comprises live source and program request source, this live source comprises transcoder and encoder, server comprises encryption device, multimedia data management device and plays permission control device, encryption device comprises multimedia data encryption module and key management and authorization module, multimedia data management device comprises system for unified management, media delivery service, user and Product Management System, play permission control device and comprise authorization check module, user terminal comprises playing environment checkout gear.When multimedia source is live source, this live source can carry out transcoding by transcoder to multi-medium data, and by encoder, the multi-medium data after transcoding is encoded, simultaneously to encryption device request to the multimedia data encryption after coding, when this encryption device receives this CIPHERING REQUEST, multimedia data encryption module will be encrypted this multi-medium data, by key management and authorization module, the ciphertext of this multi-medium data is returned live source after having encrypted, and the ciphertext of this multi-medium data is provided to server by this live source, when user terminal is to server request play multimedia data, user in this server and Product Management System will carry out user identity verification, when this user identity verification by after, judge whether this playing environment parameter meets specified requirements by authorization check module, wherein, playing environment parameter is detected by the playing environment detection module of user terminal and obtains, and specified requirements arranges in system for unified management, and be synchronized to authorization check module, when this playing environment parameter meets specified requirements, this broadcasting permission control device sends message to multimedia data management device, make media delivery service in this multimedia data management device that the ciphertext of multi-medium data is sent to user terminal, simultaneously, this broadcasting authority correction verification module issues encryption key to encryption device request and this encryption key is handed down to user terminal, thus make this user terminal can resolve the ciphertext of this multi-medium data based on the encryption key received, and carry out multi-medium data broadcasting.And when multimedia source is program request source, this program request source is encrypted to encryption device request, and the ciphertext of multi-medium data is provided to server by this encryption device, the operation of user terminal play-on-demand multi-medium data can with reference to the associative operation of above-mentioned broadcasting live multimedia data, and the embodiment of the present invention repeats no longer one by one to this.
Fig. 2 is a kind of multimedia data playing method flow chart that the embodiment of the present invention provides, and see Fig. 2, the method comprises:
Step 201: when user terminal receives multi-medium data play instruction, obtain the first playing environment parameter of user terminal, this first playing environment parameter at least comprises geographical position.
In order to judge whether first playing environment at user terminal place can carry out the broadcasting of multi-medium data, when user terminal receives multi-medium data play instruction, this user terminal needs to detect playing environment parameter, obtains the first playing environment parameter.
It should be noted that, this user terminal can detect the first playing environment parameter by detecting interface, and this detection interface has the function of traffic encryption key, such as, this detection interface can be sync cap etc., and the embodiment of the present invention is not specifically limited this.
Wherein, in embodiments of the present invention, user terminal can be not only fixed terminal, can also be mobile terminal.When user terminal is fixed terminal, the geographical position of this fixed terminal just can directly obtain when mounted, therefore can arrange in advance the geographical position of this user terminal, certainly, the geographical position of this user terminal can also obtain from the positioner being arranged on this user terminal, and the embodiment of the present invention is not specifically limited this.
Such as, when this user terminal is Set Top Box, on-site install because Set Top Box has installment work personnel, therefore, the geographical position of Set Top Box directly can be set to address when registered user identifies.
It should be noted that, user ID is used for unique identification user identity, and this user ID can be arranged in advance, and such as this user ID can be mailbox, phone number, ID card No. etc., and the embodiment of the present invention is not specifically limited this.
In like manner, when this user terminal is mobile terminal, this user terminal can get the geographical position of this user terminal from the positioner being arranged on this user terminal, and the present invention is that embodiment is not specifically limited this.
It should be noted that, positioner is for determining the geographical position at user terminal place, and this positioner can be installed in the user terminal in advance, and such as, this positioner can be that global positioning system is (English: GlobalPositioningSystem; Be called for short: GPS), the embodiment of the present invention is not specifically limited this.
It should be noted that, geographical position refers to the geographical position at the current place of user terminal.
Also it should be noted that, multi-medium data play instruction is used for playing multi-medium data, and this multimedia instruction can be triggered by the first assigned operation by user, this first assigned operation can be clicking operation, slide, voice operating etc., and the embodiment of the present invention is not specifically limited this.In addition, because the type of multi-medium data can comprise live multimedia data and multimedia data on demand, and when the type of this multi-medium data is live multimedia data, this multimedia instruction can be live play instruction, when the type of this multi-medium data is multimedia data on demand, this multimedia instruction can be program request play instruction, and the embodiment of the present invention is not specifically limited this equally.
Further, this first playing environment parameter not only can comprise geographical position, can also comprise at least one in following parameter: display device parameter, network environment, type of user terminal.Certainly, this first playing environment parameter can also comprise other parameter, and such as, reproduction time parameter etc., the embodiment of the present invention is not specifically limited this.
Because some high-definition multimedia data require very high when playing to display device parameter, network environment and type of user terminal, therefore, display device parameter, network environment and user terminal can be contained in the first playing environment parameter equally.
Wherein, display device parameter refers to the configuration parameter of the display device that user terminal comprises, such as, when type of user terminal is fixed terminal, this display device parameter can be display device type, and display device resolution etc., when type of user terminal is mobile terminal, this display device parameter can be display device resolution etc., and the embodiment of the present invention is not specifically limited this.Also it should be noted that, display device type can be projecting apparatus, intelligent TV set, common computer display device, smart mobile phone etc., and the embodiment of the present invention is not specifically limited this.And network environment refers to network type, Internet protocol (English: InternetProtocol that user terminal uses; Be called for short: IP) address etc., such as, network type can be fixed network, mobile network etc., and the embodiment of the present invention is not specifically limited this.
When the first playing environment parameter not only comprises geographical position, when also comprising at least one in display device parameter, network environment and type of user terminal, if type of user terminal is fixed terminal, this user terminal can obtain the display device parameter of this user terminal by specified interface.And if type of user terminal is mobile terminal, the specified interface that this user terminal can call this user terminal operations system obtains the display device parameter of this user terminal.
In addition, for fixed terminal, specified interface refers to the interface be connected with display device, and such as HDMI (High Definition Multimedia Interface) is (English: HighDefinitionMultimediaInterface; Be called for short: HDMI), digital visual interface is (English: DigitalVisualInterface; Be called for short: DVI) etc., the embodiment of the present invention is not specifically limited equally to this.
Moreover, for mobile terminal, this specified interface can for the virtual interface for obtaining user terminal display equipment parameter, such as, virtual display device interface, and operating system refers to the operating system of user terminal, this operating system can be IOS, Linux, Android, Windows etc., and the embodiment of the present invention is not specifically limited this.
Such as, when this user terminal is Set Top Box, it is intelligent TV set that this Set Top Box can obtain display device type by HDMI or DVI interface, and display device resolution is 2048*768.When this user terminal is smart mobile phone and the operating system of this smart mobile phone is android system, the display device interfaces acquisition display device type that this smart mobile phone can call android system is smart mobile phone, and display device resolution is 1024*600.
In like manner, if by specified interface, user terminal detects that type of user terminal is fixed terminal, and the network environment of fixed terminal just can directly obtain when mounted, therefore can arrange in advance the network environment of this user terminal, the embodiment of the present invention is not specifically limited this.
Such as, this user terminal is Set Top Box, on-sites install because Set Top Box has installment work personnel, and the installment work librarian use netting twine interconnection network of this Set Top Box, therefore, directly can arrange network environment is fixed network.
If by specified interface, this user terminal detects that this type of user terminal is mobile terminal, for the network environment of this user terminal, the network interface that this user terminal can call its operating system obtains, and the present invention is that embodiment is not specifically limited this.
Step 202: user terminal sends multi-medium data playing request to server, carries this first playing environment parameter and multi-media tag in this multi-medium data playing request.
It should be noted that, multi-media tag is used for unique identification multi-medium data, and such as this multi-media tag is the title of this multi-medium data, the broadcasting link etc. of multi-medium data, and the embodiment of the present invention is not specifically limited this.
Further, not only can carry this first playing environment parameter and multi-media tag in the multi-medium data playing request that this user terminal sends to server, can also user ID be carried simultaneously.
Step 203: when server receives the multi-medium data playing request of user terminal transmission, based on this first playing environment parameter, authorization check is carried out to this user terminal.
In order to determine whether the playing environment residing for this user terminal can carry out multi-medium data broadcasting, this server needs based on the first playing environment parameter, carries out authorization check to this user terminal.And server is based on the first playing environment parameter, the operation this user terminal being carried out to authorization check can be: server judges whether this first playing environment parameter meets specified requirements, and this specified requirements at least comprises geographical position and is positioned within specified geographic location set; If this first playing environment parameter meets this specified requirements, then determine that the authorization check of this user terminal passes through, otherwise, determine that the authorization check of this user terminal does not pass through.
It should be noted that, specified requirements is the condition arranged in advance, and such as, this specified requirements can be positioned within specified geographic location set for the geographical position of user terminal, and the embodiment of the present invention is not specifically limited this.
In addition, the mode of server stores specified requirements can be store in the form of a list, and also can otherwise store, the embodiment of the present invention is not specifically limited this.
Further, because the first playing environment parameter can also comprise at least one in display device parameter, network environment and subscriber terminal equipment, therefore, specified requirements can also can comprise intelligent TV set and smart mobile phone for allowing the display device type set carrying out multi-medium data broadcasting, and this display device resolving range be greater than or equal to 4096*2160, the network environment of user terminal is positioned within the set of specified network environment, type of user terminal to be positioned within the set of designated user terminal type etc., the embodiment of the present invention is not specifically limited this.
Wherein, when the geographical position that specified requirements is user terminal is positioned within specified geographic location set, server judges that the operation whether this first playing environment parameter meets specified requirements can be: the geographical position in the first playing environment parameter and specified geographic location set compare by this server, when the geographical position in the first playing environment parameter is positioned within this specified geographic location set, determine that the first playing environment parameter meets specified requirements, otherwise, determine that the first playing environment parameter is discontented with toe fixed condition.
In like manner, when specified requirements is that display device parameter is positioned within designated parameter scope, and display device parameter be display device type and display device resolution time, server judges that the operation whether this first playing environment parameter meets specified requirements can be: the display device type in the first playing environment parameter and the display device type set in specified requirements compare by server, and the display device resolution in the first playing environment parameter and the display device resolving range in specified requirements are compared, when the display device type in the first playing environment parameter to be arranged within this display device type set and the display device resolution bits of this first playing environment parameter within this display device resolving range time, determine that the first playing environment parameter meets specified requirements, otherwise, determine that the first playing environment parameter is discontented with toe fixed condition.
In like manner, when the network environment that specified requirements is user terminal is positioned within the set of specified network environment, server judges that the operation whether this first playing environment parameter meets specified requirements can be: the network environment in the first playing environment parameter and the set of specified network environment compare by this server, when the network environment in the first playing environment parameter is positioned within this specified network environment set, determine that the first playing environment parameter meets specified requirements, otherwise, determine that the first playing environment parameter is discontented with toe fixed condition.
In like manner, when specified requirements be type of user terminal be positioned within the set of designated user terminal type time, server judges that the operation whether this first playing environment parameter meets specified requirements can be: the type of user terminal in the first playing environment parameter and the set of designated user terminal type compare by this server, when the type of user terminal in the first playing environment parameter is positioned within this designated user terminal type set, determine that the first playing environment parameter meets specified requirements, otherwise, determine that the first playing environment parameter is discontented with toe fixed condition.
Further, at server based on the first playing environment parameter, before carrying out authorization check to this user terminal, this server can arrange instruction by condition of acceptance, carries conditional parameter in this condition setting instruction; Based on this conditional parameter, the specified requirements that this multi-medium data is play is set.
It should be noted that, condition setting instruction is used for arranging specified requirements, and this condition setting instruction can be triggered by the second assigned operation by the keeper of server, this second assigned operation can be clicking operation, slide, voice operating etc., and the embodiment of the present invention is not specifically limited this.
In addition, conditional parameter is used for arranging specified requirements, and this conditional parameter can be arranged in advance, and such as this conditional parameter to be type of user terminal be intelligent TV set, display device resolution is for being greater than 2048*600 etc., and the embodiment of the present invention is not specifically limited this.
As shown in Figure 3, in embodiments of the present invention, server can comprise encryption device, multimedia data management device and play permission control device.Wherein, encryption device comprises condition reception (English: ConditonalAccess; Be called for short: CA), for being encrypted multi-medium data.It is (English: UnifiedManagementSystem that multimedia data management device comprises system for unified management; Be called for short: UMS), Electronic Program Guide is (English: ElectronicProgramGuide; Be called for short: EPG), Media Entertainment Middleware is (English: MediaEntertainmentMiddleware; MEM) and media delivery service (MediaDistributionNetwork be called for short:; MDN), wherein, UMS is used for arranging specified requirements, and EPG is used for carrying out authentication to user, and MEM is mutual for what realize between server internal different system, and MDN is used for the ciphertext sending multi-medium data to user terminal.
As shown in Figure 4, play permission control device and comprise unified message interface layer, authority maintenance module, key maintenance module, authorization check module and uniform data interface layer.Wherein, unified message interface layer is used for communicating with multimedia data management device with the encryption device of server, authority maintenance module is for receiving the message of unified message interface layer and the transmission of uniform data interface, and specified requirements is resolved and safeguards, key maintenance module is used for obtaining encryption key from encryption device, authorization check module is used for obtaining specified requirements from authority maintenance module, and based on this specified requirements, authorization check is carried out to user terminal, the authorization check request that uniform data interface layer sends for receiving user terminal, and authorization check pass through rear to this user terminal send encryption key.
Based on the server shown in Fig. 3 and Fig. 4, after this server gets the plaintext of multi-medium data from multimedia source, this server arranges the specified requirements of this multi-medium data broadcasting by the UMS in multimedia data management device, and the specified requirements of setting is synchronized to the authorization check module play in permission control device by this UMS, when authority correction verification module returns to UMS the response that specified requirements synchronously completes, this server can determine that the specified requirements that this multi-medium data is play is provided with.
It should be noted that, based on foregoing description, multimedia request can be program request playing request and live play request, the multimedia request received when server is program request playing request and after server gets multi-medium data from multi-medium data source, this server can create multimedia order programme system on UMS, and the multi-medium data of acquisition added in this multimedia order programme system, and the specified requirements of this multi-medium data is set on UMS, and the specified requirements of setting is stored in authority maintenance module.
In addition, be live play request and after server gets multi-medium data from multi-medium data source when this server receives multimedia request, this server can create direct broadcast band on UMS, and this multi-medium data is associated with this direct broadcast band, and the specified requirements of multi-medium data is set on UMS, and the specified requirements of setting is stored in authority maintenance module.
It should be noted that, can also comprise metadata in the multi-medium data that server obtains from multi-medium data source, this metadata can comprise the title, brief introduction, classification etc. of this multi-medium data, and the embodiment of the present invention is not specifically limited this.And the title, brief introduction, classification etc. of this multi-medium data not only can be comprised for the metadata of direct broadcast band, can also comprise the channel designation of direct broadcast band, channel becomes a mandarin IP, go out to flow IP etc., the embodiment of the present invention is not specifically limited this.
Further, at server based on the first playing environment parameter, before carrying out authorization check to this user terminal, this server also needs the user ID of carrying in the authorization check request sent based on user terminal, carries out authentication to this user.
Particularly, when this server receives multimedia request, the user ID of carrying in the subscriber identity data storehouse of storage and this multimedia request compares by the EPG in server, when there is this user ID in subscriber identity data storehouse, then determine that the authentication of this user is passed through, otherwise, determine that the authentication of this user is not tentatively passed through.
Further, if the authentication of user is not tentatively passed through, then this user ID is transmitted to MEM by this EPG, this MEM will carry out buffering authentication to this user ID, if authentication success, then determine that the authentication of this user is passed through, otherwise, determine that the authentication of this user is not passed through, and return authenticating result to EPG.
Wherein, the user ID stored in subscriber identity data storehouse in EPG is carry out in advance registering and obtain the user ID of authority, and when user does not register in advance, and register in the process of requesting multimedia data, therefore, server is determining that the authentication of user is not tentatively by afterwards, can carry out buffering authentication to this user, that is to say, buffering authentication is for judging whether user that user terminal is corresponding carries out the registration of user ID in the process of request multimedia.
Step 204: if authorization check passes through, then the ciphertext of multi-medium data corresponding for this multi-media tag and encryption key are sent to this user terminal by server.
If authorization check passes through, broadcasting permission control device in this server asks the encryption key of this multi-medium data to the CA in encryption device, after CA returns encryption key, this encryption key is sent to this user terminal by uniform data interface layer by this broadcasting permission control device.Afterwards, this server obtains the ciphertext of this multi-medium data again from multimedia data management device, and the ciphertext of this multi-medium data is sent to user terminal.
Wherein, when this multi-medium data playing request be program request playing request and live play request time, the ciphertext of multi-medium data sends to user terminal to have the following two kinds situation by server.
The first situation, when the multi-medium data playing request that user terminal sends is program request playing request, this user terminal can according to this multi-media tag, and the broadcasting URL(uniform resource locator) obtaining multimedia order programme system from EPG is (English: UniformResourceLocator; Be called for short: URL), and according to playing the ciphertext of URL to MDN requesting multimedia data, when MDN receives this request, the ciphertext of this multi-medium data is sent to this user terminal by with mode of unicast by MDN.
The second situation, when the multi-medium data playing request that user terminal sends is live play request, this user terminal is according to multi-media tag, determine the channel URL of this multi-medium data, and based on the multicast address in this channel URL, add the multicast group belonging to this multi-medium data live to server application, thus obtain the ciphertext of this multi-medium data, and send the ciphertext of this multi-medium data to user terminal by multicast mode.
It should be noted that, the ciphertext of multi-medium data refers to the multi-medium data after being encrypted the plaintext of multi-medium data.
Further, before user terminal obtains the ciphertext of multi-medium data from server, this server can be encrypted the plaintext of the multi-medium data obtained from multi-medium data source, obtains the ciphertext of multi-medium data, and then the ciphertext of this multi-medium data is stored.And server is based on the structure of Fig. 4 and Fig. 5, the method be encrypted this multi-medium data can with reference to correlation technique, and the embodiment of the present invention is no longer described in detail this.
Further, if authorization check does not pass through, server then refuses the ciphertext from multi-medium data to user terminal and the encryption key that send; Or, this server can also to this user terminal send verification response, this verification response in carry appointment error code, and this appointment error code for point out user right verify not by and cannot play multimedia data.
It should be noted that, this appointment error code can be arranged in advance, and when the first playing environment parameter comprises multiple parameters, every parameter can be distinguished corresponding one and specify error code, certainly, all parameters that first playing environment parameter comprises also can corresponding same appointment error code, that is to say, can stored parameter and specify corresponding relation between error code in server, when authorization check is obstructed out-of-date, server can determine the parameter causing authorization check not pass through, based on the parameter determined, corresponding appointment error code is obtained with the corresponding relation of specifying between error code from parameter, and the appointment error code of acquisition is carried in this verification response, thus user terminal can be made to define the competence verify the reason do not passed through, certainly, the appointment error code carried in this verification response also can be one and only represent the appointment error code verifying and do not pass through, and user terminal cannot be made to define the competence verify the reason do not passed through, disclosure embodiment is not specifically limited this.Certainly, in actual applications, the reason that can be well understood to multi-medium data to make user and cannot play, can specify error code for every parameter arrange corresponding one respectively.
Such as, when authorization check is obstructed out-of-date, server determines that the parameter causing authorization check not pass through is network environment, now, server can according to network environment, from parameter as shown in table 1 and specifying between error code corresponding relation, obtaining corresponding appointment error code is 0002, and this appointment error code 0002 is carried in verification response and sends to user terminal.
Table 1
Parameter Specify error code
Display device parameter 0001
Network environment 0002
Geographical position 0003
...... ......
It should be noted that, in embodiments of the present invention, be only described for the parameter shown in above-mentioned table 1 and the corresponding relation between appointment error code, above-mentioned table 1 does not form restriction to the embodiment of the present invention.
Step 205: when user terminal receives ciphertext and the encryption key of the multi-medium data that this server returns, the ciphertext of resolving this multi-medium data based on this encryption key carries out the broadcasting of multi-medium data.
When user terminal receives ciphertext and the encryption key of the multi-medium data that this server returns, the ciphertext of the multi-medium data received is decrypted by the encryption key received by this user terminal, thus obtain the plaintext of multi-medium data, and based on the plaintext of multi-medium data, this multi-medium data is play.
Further, in the playing process of this multi-medium data, in order to protect this multi-medium data in real time, this user terminal can also obtain the second playing environment parameter of this user terminal, this user terminal, based on this first playing environment parameter, judges whether this second playing environment parameter changes; If this second playing environment parameter changes, this user terminal, then to this server sending permission check request, carries this second playing environment parameter in this authorization check request.Server receives this user terminal sending permission check request; This server, based on this second playing environment parameter, carries out authorization check to this user terminal; If authorization check does not pass through, then send verification response to this user terminal, in this verification response, carry appointment error code.When user terminal receive this server carry out authorization check based on described second playing environment parameter and the verification returned response time, respond based on this verification, the broadcasting of this multi-medium data controlled.
Wherein, in the process that this multi-medium data is play, this user terminal can be real-time the playing environment parameter of this user terminal is detected, obtain the second playing environment parameter, can also detect every the playing environment parameter of appointment duration to this user terminal, obtain the second playing environment parameter.And owing to detecting the resource scarcity that may cause user terminal in real time, therefore, in order to reduce the resource scarcity of user terminal, in actual applications, usually detect every the playing environment parameter of appointment duration to this user terminal, the embodiment of the present invention is not specifically limited this.
It should be noted that, when multi-medium data starts to play, this user terminal can carry out the detection of the second playing environment parameter by monitor-interface.This monitor-interface can provide timing detection function, and such as, this monitor-interface can asynchronous interface etc., and the embodiment of the present invention is not specifically limited this.
In addition, the detection mode of the second playing environment parameter is identical with the detection mode of the first playing environment parameter, and the embodiment of the present invention is not just repeating one by one to this.
Moreover specify duration to arrange in advance, such as, this appointment duration can be 1 minute, 2 minutes, 3 minutes etc., and the embodiment of the present invention is not specifically limited this.
Wherein, this user terminal, based on this first playing environment parameter, judges that the operation whether this second playing environment parameter changes can have the following two kinds mode.
First kind of way, judges that whether this first playing environment parameter is identical with this second playing environment parameter; If this first playing environment parameter is identical with this second playing environment parameter, then determine that this second playing environment parameter does not change, otherwise, determine that this second playing environment parameter changes.
Wherein, when this user terminal detects the second playing environment parameter, because the first playing environment parameter and the second playing environment parameter may comprise multiple parameters, therefore, the the second playing environment parameter detected and the first playing environment parameter can contrast by this user terminal one by one, when each parameter in the first playing environment parameter all corresponding with each parameter of the second playing environment parameter identical time, then determine that this second playing environment parameter does not change; And if when at least one parameter is not identical with a parameter corresponding in the second playing environment parameter in the first playing environment parameter, then determine that this second playing environment parameter changes.
The second way, user terminal obtains playing environment parameter fluctuation scope; Determine the difference between this first playing environment parameter and this second playing environment parameter, this difference is defined as fluctuation parameters; Judge whether this fluctuation parameters is positioned within this playing environment parameter fluctuation scope; If this fluctuation parameters is positioned within this playing environment parameter fluctuation scope, then determine that this second playing environment parameter does not change, otherwise, determine that this second playing environment parameter changes.
Wherein, when this user terminal detects the second playing environment parameter, first playing environment parameter and the second playing environment parameter contrast by this user terminal, obtain the fluctuation parameters between the first playing environment parameter and the second playing environment parameter, the fluctuation parameters of acquisition and playing environment parameter fluctuation scope are contrasted, when fluctuation parameters is positioned within this playing environment fluctuation range, then determine that this second playing environment does not change, otherwise, determine that this second playing environment parameter changes.
It should be noted that, playing environment parameter fluctuation scope is for judging whether the second playing environment parameter changes, and this playing environment parameter fluctuation scope can be arranged in advance, such as, this playing environment fluctuation range can be 1000 meters etc. for the geographical position fluctuation range of user terminal, and the embodiment of the present invention is not specifically limited this.
Because user terminal is in the process of play multimedia data, can detect the playing environment parameter of this user terminal in real time or periodically, and whenever detecting that the second playing environment parameter changes, this user terminal all can to server sending permission check request, when adopting first kind of way to judge whether the second playing environment parameter changes, the accuracy that the second playing environment Parameters variation situation is judged can be improved.And if the second playing environment parameter compare the first playing environment parameter fluctuation less and fluctuation after the second playing environment parameter also can pass through authorization check, now, again to the resource wasting user terminal during server sending permission check request, and the interaction times between adding users terminal and server, therefore, when judging whether the second playing environment parameter changes based on the second way, the resource of user terminal can be saved, reduce the interaction times between user terminal and server.
It should be noted that, server is based on this second playing environment parameter, the mode of this user terminal being carried out to authorization check is identical with the mode that server carries out authorization check based on this first playing environment parameter to user terminal, and the embodiment of the present invention repeats no longer one by one to this.
Wherein, user terminal responds based on this verification, to the operation that the broadcasting of this multi-medium data controls can be: judge whether carry appointment error code in this verification response; If carry this appointment error code in this verification response, then stop the broadcasting of this multi-medium data.
Further, based on the description of step 204, when stored parameter in server and when specifying between error code corresponding relation, when user terminal stops the broadcasting of this multi-medium data, this user terminal can the reason that cannot play to point out customer multi-media data of display reminding information.
Wherein, this information can be arranged in advance, such as, the corresponding relation of specifying between error code and this information can be set, when user terminal stops the broadcasting of this multi-medium data, this user terminal can respond based on this verification the appointment error code carried, and obtain corresponding information from the appointment error code stored with the corresponding relation between information, the embodiment of the present invention is not specifically limited this.
Such as, the corresponding relation of this appointment error code and information is as shown in table 2, wherein when the appointment error code carried in verification response is 0001, corresponding information is that display device is not supported to play, when the appointment error code carried in verification response is 0002, corresponding information is that network environment is not supported to play, when the appointment error code carried during verification responds is 0003, corresponding information is that geographical position is not supported to play, and the embodiment of the present invention is not specifically limited this.
Table 2
Specify error code Information
0001 Display device is not supported to play
0002 Network environment is not supported to play
0003 Geographical position is not supported to play
...... ......
It should be noted that, in embodiments of the present invention, be only described for the corresponding relation between the appointment error code shown in above-mentioned table 2 and information, above-mentioned table 2 does not form restriction to the embodiment of the present invention.
In addition, the multi-medium data playing request sent when user terminal is program request playing request, and this authorization check is obstructed out-of-date, this server not only can send verification response to this user terminal, user terminal is responded based on this verification, the broadcasting of this multi-medium data is controlled, certainly, authorization check device in this server can also send multi-medium data to MDN to be stopped sending instruction, when this MDN receives this multi-medium data stopping transmission instruction, the ciphertext sending multi-medium data to user terminal will be stopped, make user terminal cannot continue the ciphertext of play multimedia data, the embodiment of the present invention is not specifically limited this.
In embodiments of the present invention, the playing environment of user terminal to self detects, obtain the first playing environment parameter, and this first playing environment parameter and user ID are sent to server, server is made to carry out authentication based on user ID to user, after subscriber authentication is passed through, again authorization check is carried out to this first playing environment parameter, wherein, at least geographical position is comprised in this first playing environment parameter, when authorization check passes through, that is to say, time within the region that the geographical position in the first playing environment parameter is positioned at this multi-medium data permission broadcasting, the ciphertext of multi-medium data and encryption key can be sent to user terminal by this server, make this user terminal can carry out the broadcasting of multi-medium data, and when this geographical position be positioned at this multi-medium data forbid play region time, the ciphertext of this multi-medium data and encryption key are not sent to user terminal by this server, thus make user terminal cannot play this multi-medium data, avoid this multi-medium data and forbid the leakage of play area, ensure that the fail safe of multi-medium data.
Fig. 5 is the structural representation of a kind of multi-medium data playing device according to an exemplary embodiment, and see Fig. 5, this device comprises first detection module 501, first sending module 502, receiver module 503 and playing module 504.
First acquisition module 501, for performing the operation described in above-mentioned steps 201;
First sending module 502, for performing the operation described in above-mentioned steps 202;
Receiver module 503, for after above-mentioned steps 203 and 204, reception server carries out authorization check based on this first playing environment parameter, and at authorization check by returning ciphertext and the encryption key of multi-medium data afterwards based on this multi-media tag;
Playing module 504, for performing the operation described in above-mentioned steps 205.
Alternatively, as shown in Figure 6, this device also comprises:
Second acquisition module 505, for performing the operation in above-mentioned steps 205;
Judge module 506, for performing in above-mentioned steps 205 based on this first playing environment parameter, judges the operation whether this second playing environment parameter changes;
Second sending module 507, for performing the operation in above-mentioned steps 205;
Control module 508, for performing in above-mentioned steps 205 when receiving the verification response that this server returns, responds based on this verification, to the operation that the broadcasting of this multi-medium data controls.
Alternatively, this judge module 506 comprises: acquiring unit, the first determining unit, the first judging unit and the second determining unit; And acquiring unit, the first determining unit, the first judging unit and the second determining unit are for performing in above-mentioned steps 205 second way judging whether this second playing environment parameter changes.
Alternatively, this control module 508 comprises:
Second judging unit, judges whether carry the operation of specifying error code in this verification response for performing in above-mentioned steps 205;
Stop element, for performing the operation of the broadcasting stopping this multi-medium data in above-mentioned steps 205.
In sum, in embodiments of the present invention, the playing environment of user terminal to self detects, obtain the first playing environment parameter, and this first playing environment parameter is sent to server, wherein, at least geographical position is comprised in this first playing environment parameter, thus this server can carry out authorization check based on this first playing environment parameter, when authorization check passes through, that is to say, time within the region that the geographical position in the first playing environment parameter is positioned at this multi-medium data permission broadcasting, the ciphertext of multi-medium data and encryption key can be sent to user terminal by this server, make this user terminal can carry out the broadcasting of multi-medium data, and when this geographical position be positioned at this multi-medium data forbid play region time, the ciphertext of this multi-medium data and encryption key are not sent to user terminal by this server, thus make user terminal cannot play this multi-medium data, avoid this multi-medium data and forbid the leakage of play area, ensure that the fail safe of multi-medium data.
Fig. 7 is the structural representation of the another kind of multi-medium data playing device according to an exemplary embodiment, and see Fig. 7, this device comprises the first receiver module 701, first correction verification module 702 and the first sending module 703.
First receiver module 701, for performing in above-mentioned steps 203 operation receiving the multi-medium data playing request that user terminal sends;
First correction verification module 702, for after above-mentioned first receiver module complete operation, based on this first playing environment parameter in execution above-mentioned steps 203, carries out the operation of authorization check to this user terminal;
First sending module 703, for performing the operation described in above-mentioned steps 204.
Alternatively, this first correction verification module 702 comprises:
For performing in above-mentioned steps 203, judging unit, judges whether this first playing environment parameter meets the operation of specified requirements;
Determining unit, for judging that at judging unit this first playing environment parameter meets this specified requirements, then determines that the authorization check of this user terminal passes through, otherwise, determine that the authorization check of this user terminal does not pass through.
Alternatively, as shown in Figure 8, this device also comprises:
Second receiver module 704, for performing in above-mentioned steps 205 operation receiving this user terminal sending permission check request;
Second correction verification module 705, for performing in above-mentioned steps 205 based on this second playing environment parameter, carries out the operation of authorization check to this user terminal;
Second sending module 706, for performing the operation sending verification response in above-mentioned steps 205 to this user terminal.
In sum, in embodiments of the present invention, when server receives the first playing environment parameter of user terminal transmission, this server can carry out authorization check based on this first playing environment parameter, wherein, at least geographical position is comprised in this first playing environment parameter, when authorization check passes through, that is to say, time within the region that the geographical position in the first playing environment parameter is positioned at this multi-medium data permission broadcasting, the ciphertext of multi-medium data and encryption key can be sent to user terminal by this server, make this user terminal can carry out the broadcasting of multi-medium data, and when this geographical position be positioned at this multi-medium data forbid play region time, the ciphertext of this multi-medium data and encryption key are not sent to user terminal by this server, thus make user terminal cannot play this multi-medium data, avoid this multi-medium data and forbid the leakage of play area, ensure that the fail safe of multi-medium data.
Fig. 9 embodiments provides a kind of multi-medium data playing device schematic diagram, and see Fig. 9, this device comprises: transmitter 901, receiver 902, processor 903, memory 904, communication bus 905, comprising:
Memory 904, for storing message and data;
Receiver 902, for when receiving multi-medium data play instruction, obtain the first playing environment parameter of user terminal, this first playing environment parameter at least comprises geographical position, and wherein, above-mentioned first acquisition module 501 can be contained in this receiver 902;
Transmitter 901, for sending multi-medium data playing request to server, carry this first playing environment parameter and multi-media tag in this multi-medium data playing request, wherein, above-mentioned first sending module 502 can be contained in this transmitter 902;
Receiver 902, authorization check is carried out based on this first playing environment parameter for receiving this server, and at authorization check by returning ciphertext and the encryption key of multi-medium data afterwards based on this multi-media tag, wherein, above-mentioned receiver module 503 can be contained in this receiver 902;
Processor 904, the ciphertext for resolving this multi-medium data based on this encryption key carries out the broadcasting of multi-medium data, and wherein, above-mentioned playing module 504 can be contained in this processor 904.
Alternatively,
Processor 903, in the playing process of this multi-medium data, obtains the second playing environment parameter of this user terminal, and wherein, above-mentioned second acquisition module 505 can be contained in this processor 903;
Processor 903, for based on this first playing environment parameter, judge whether this second playing environment parameter changes, wherein, above-mentioned judge module 506 can be contained in this processor 903;
Transmitter 901, if changed for this second playing environment parameter, then to this server sending permission check request, in this authorization check request, carry this second playing environment parameter, wherein, above-mentioned second sending module 507 can be contained in this transmitter 901;
Receiver 902, for when receive this server and carry out authorization check based on this second playing environment parameter and the verification returned response time, respond based on this verification, the broadcasting of this multi-medium data controlled, wherein, above-mentioned control module 508 can be contained in this receiver 902.
Alternatively, processor 903 also for:
Obtain playing environment parameter fluctuation scope;
Determine the difference between this first playing environment parameter and this second playing environment parameter, this difference is defined as fluctuation parameters;
Judge whether this fluctuation parameters is positioned within this playing environment parameter fluctuation scope;
If this fluctuation parameters is positioned within this playing environment parameter fluctuation scope, then determine that this second playing environment parameter does not change, otherwise, determine that this second playing environment parameter changes.
Wherein, acquiring unit, the first determining unit, the first judging unit and the second determining unit in above-mentioned judge module 506 can be contained in this processor 903.
Alternatively, processor 903 also for:
Judge whether carry appointment error code in this verification response;
If carry this appointment error code in this verification response, then stop the broadcasting of this multi-medium data.
Wherein, the second judging unit in above-mentioned control module 508 and stop element can be contained in this processor 903.
To sum up, in embodiments of the present invention, the playing environment of user terminal to self detects, obtain the first playing environment parameter, and this first playing environment parameter is sent to server, wherein, at least geographical position is comprised in this first playing environment parameter, thus this server can carry out authorization check based on this first playing environment parameter, when authorization check passes through, that is to say, time within the region that the geographical position in the first playing environment parameter is positioned at this multi-medium data permission broadcasting, the ciphertext of multi-medium data and encryption key can be sent to user terminal by this server, make this user terminal can carry out the broadcasting of multi-medium data, and when this geographical position be positioned at this multi-medium data forbid play region time, the ciphertext of this multi-medium data and encryption key are not sent to user terminal by this server, thus make user terminal cannot play this multi-medium data, avoid this multi-medium data and forbid the leakage of play area, ensure that the fail safe of multi-medium data.
Figure 10 embodiments provides a kind of multi-medium data playing device schematic diagram, and see Figure 10, this device comprises: transmitter 1001, receiver 1002, processor 1003, memory 1004, communication bus 1005, comprising:
Memory 1004, for storing message and data;
Receiver 1002, for receiving the multi-medium data playing request that user terminal sends, the first playing environment parameter and multi-media tag is carried in this multi-medium data playing request, this the first playing environment parameter at least comprises geographical position, wherein, above-mentioned first receiver module 701 can be contained in this receiver 1001.
Processor 1003, for based on this first playing environment parameter, carries out authorization check to this user terminal, and wherein, above-mentioned first correction verification module 702 can be contained in this processor 1003.
Transmitter 1001, if passed through for authorization check, then the ciphertext of multi-medium data corresponding for this multi-media tag and encryption key are sent to this user terminal, this encryption key is used for the ciphertext of resolving this multi-medium data when carrying out multi-medium data and playing, wherein, above-mentioned first sending module 703 can be contained in this transmitter 1001.
Alternatively, processor 1003 also for:
Judge whether this first playing environment parameter meets specified requirements, this specified requirements at least comprises geographical position and is positioned within specified geographic location set;
If this first playing environment parameter meets this specified requirements, then determine that the authorization check of this user terminal passes through, otherwise, determine that the authorization check of this user terminal does not pass through.
Wherein, the judging unit in above-mentioned first correction verification module 702 and determining unit can be contained in this processor 1003.
Alternatively,
Receiver 1002, receives this user terminal sending permission check request, carries the second playing environment parameter in this authorization check request, and wherein, above-mentioned second receiver module 704 can be contained in this receiver 1002;
Processor 1003, for based on this second playing environment parameter, carries out authorization check wherein to this user terminal, and above-mentioned second correction verification module 705 can be contained in this processor 1003;
Transmitter 1001, if do not passed through for authorization check, then send verification response to this user terminal, carry appointment error code in this verification response, wherein, above-mentioned second sending module 706 can be contained in this transmitter 1001.
In sum, in embodiments of the present invention, when server receives the first playing environment parameter of user terminal transmission, this server can carry out authorization check based on this first playing environment parameter, wherein, at least geographical position is comprised in this first playing environment parameter, when authorization check passes through, that is to say, time within the region that the geographical position in the first playing environment parameter is positioned at this multi-medium data permission broadcasting, the ciphertext of multi-medium data and encryption key can be sent to user terminal by this server, make this user terminal can carry out the broadcasting of multi-medium data, and when this geographical position be positioned at this multi-medium data forbid play region time, the ciphertext of this multi-medium data and encryption key are not sent to user terminal by this server, thus make user terminal cannot play this multi-medium data, avoid this multi-medium data and forbid the leakage of play area, ensure that the fail safe of multi-medium data.
It should be noted that: the device that the multi-medium data that above-described embodiment provides is play is when multi-medium data is play, only be illustrated with the division of above-mentioned each functional module, in practical application, can distribute as required and by above-mentioned functions and be completed by different functional modules, internal structure by device is divided into different functional modules, to complete all or part of function described above.In addition, the device that the multi-medium data that above-described embodiment provides is play and the embodiment of the method that multi-medium data is play belong to same design, and its specific implementation process refers to embodiment of the method, repeats no more here.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (14)

1. a multimedia data playing method, is characterized in that, described method comprises:
When receiving multi-medium data play instruction, obtain the first playing environment parameter of user terminal, described first playing environment parameter at least comprises geographical position;
Send multi-medium data playing request to server, in described multi-medium data playing request, carry described first playing environment parameter and multi-media tag;
Receive described server and carry out authorization check based on described first playing environment parameter, and at authorization check by returning ciphertext and the encryption key of multi-medium data afterwards based on described multi-media tag;
The ciphertext of resolving described multi-medium data based on described encryption key carries out the broadcasting of multi-medium data.
2. the method for claim 1, is characterized in that, described ciphertext of resolving described multi-medium data based on described encryption key also comprises after carrying out the broadcasting of multi-medium data:
In the playing process of described multi-medium data, obtain the second playing environment parameter of described user terminal;
Based on described first playing environment parameter, judge whether described second playing environment parameter changes;
If described second playing environment parameter changes, then to described server sending permission check request, in described authorization check request, carry described second playing environment parameter;
When receive described server and carry out authorization check based on described second playing environment parameter and the verification returned response time, respond based on described verification, the broadcasting of described multi-medium data controlled.
3. method as claimed in claim 2, is characterized in that, described based on described first playing environment parameter, judges whether described second playing environment parameter changes, and comprising:
Obtain playing environment parameter fluctuation scope;
Determine the difference between described first playing environment parameter and described second playing environment parameter, described difference is defined as fluctuation parameters;
Judge whether described fluctuation parameters is positioned within described playing environment parameter fluctuation scope;
If described fluctuation parameters is positioned within described playing environment parameter fluctuation scope, then determine that described second playing environment parameter does not change, otherwise, determine that described second playing environment parameter changes.
4. method as claimed in claim 2, is characterized in that, described based on described verification response, controls, comprising the broadcasting of described multi-medium data:
Judge whether carry appointment error code in described verification response;
If carry described appointment error code in described verification response, then stop the broadcasting of described multi-medium data.
5. a multimedia data playing method, is characterized in that, described method comprises:
Receive the multi-medium data playing request that user terminal sends, carry the first playing environment parameter and multi-media tag in described multi-medium data playing request, described first playing environment parameter at least comprises geographical position;
Based on described first playing environment parameter, authorization check is carried out to described user terminal;
If authorization check passes through, then the ciphertext of multi-medium data corresponding for described multi-media tag and encryption key are sent to described user terminal, described encryption key is used for the ciphertext of resolving described multi-medium data when carrying out multi-medium data and playing.
6. method as claimed in claim 5, is characterized in that, described based on described first playing environment parameter, carries out authorization check, comprising described user terminal:
Judge whether described first playing environment parameter meets specified requirements, described specified requirements at least comprises geographical position and is positioned within specified geographic location set;
If described first playing environment parameter meets described specified requirements, then determine that the authorization check of described user terminal passes through, otherwise, determine that the authorization check of described user terminal does not pass through.
7. the method as described in claim 5 or 6, is characterized in that, described the ciphertext of multi-medium data corresponding for described multi-media tag and encryption key are sent to described user terminal after, also comprise:
Receive described user terminal sending permission check request, in described authorization check request, carry the second playing environment parameter;
Based on described second playing environment parameter, authorization check is carried out to described user terminal;
If authorization check does not pass through, then send verification response to described user terminal, in described verification response, carry appointment error code.
8. a multi-medium data playing device, is characterized in that, described device comprises:
First acquisition module, for when receiving multi-medium data play instruction, obtain the first playing environment parameter of user terminal, described first playing environment parameter at least comprises geographical position;
First sending module, for sending multi-medium data playing request to server, carries described first playing environment parameter and multi-media tag in described multi-medium data playing request;
Receiver module, carries out authorization check for receiving described server based on described first playing environment parameter, and at authorization check by returning ciphertext and the encryption key of multi-medium data afterwards based on described multi-media tag;
Playing module, the ciphertext for resolving described multi-medium data based on described encryption key carries out the broadcasting of multi-medium data.
9. device as claimed in claim 8, it is characterized in that, described device also comprises:
Second acquisition module, in the playing process of described multi-medium data, obtains the second playing environment parameter of described user terminal;
Judge module, for based on described first playing environment parameter, judges whether described second playing environment parameter changes;
Second sending module, if changed for described second playing environment parameter, then to described server sending permission check request, carries described second playing environment parameter in described authorization check request;
Control module, for when receive described server and carry out authorization check based on described second playing environment parameter and the verification returned response time, respond based on described verification, the broadcasting of described multi-medium data controlled.
10. device as claimed in claim 9, it is characterized in that, described judge module comprises:
Acquiring unit, for obtaining playing environment parameter fluctuation scope;
First determining unit, for determining the difference between described first playing environment parameter and described second playing environment parameter, is defined as fluctuation parameters by described difference;
First judging unit, for judging whether described fluctuation parameters is positioned within described playing environment parameter fluctuation scope;
Second determining unit, if be positioned within described playing environment parameter fluctuation scope for described fluctuation parameters, then determines that described second playing environment parameter does not change, otherwise, determine that described second playing environment parameter changes.
11. devices as claimed in claim 9, it is characterized in that, described control module comprises:
Second judging unit, for judging whether carry appointment error code in described verification response;
Stop element, if for carrying described appointment error code in described verification response, then stop the broadcasting of described multi-medium data.
12. 1 kinds of multi-medium data playing devices, is characterized in that, described device comprises:
First receiver module, for receiving the multi-medium data playing request that user terminal sends, carry the first playing environment parameter and multi-media tag in described multi-medium data playing request, described first playing environment parameter at least comprises geographical position;
First correction verification module, for based on described first playing environment parameter, carries out authorization check to described user terminal;
First sending module, if passed through for authorization check, then the ciphertext of multi-medium data corresponding for described multi-media tag and encryption key are sent to described user terminal, described encryption key is used for the ciphertext of resolving described multi-medium data when carrying out the broadcasting of multi-medium data.
13. devices as claimed in claim 12, it is characterized in that, described first correction verification module comprises:
Judging unit, for judging whether described first playing environment parameter meets specified requirements, described specified requirements at least comprises geographical position and is positioned within specified geographic location set;
Determining unit, if meet described specified requirements for described first playing environment parameter, then determines that the authorization check of described user terminal passes through, otherwise, determine that the authorization check of described user terminal does not pass through.
14. devices as described in claim 12 or 13, it is characterized in that, described device also comprises:
Second receiver module, for receiving described user terminal sending permission check request, carries the second playing environment parameter in described authorization check request;
Second correction verification module, based on described second playing environment parameter, carries out authorization check to described user terminal;
Second sending module, if authorization check does not pass through, then sends verification response to described user terminal, carries appointment error code in described verification response.
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