CN113794905A - Digital television signal distribution method, system, receiving device and terminal device - Google Patents
Digital television signal distribution method, system, receiving device and terminal device Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 107
- 239000000126 substance Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 description 21
- 230000005540 biological transmission Effects 0.000 description 15
- 230000006870 function Effects 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000005315 distribution function Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—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 or manipulating encoded video stream scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/254—Management at additional data server, e.g. shopping server, rights management server
- H04N21/2541—Rights Management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4408—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4627—Rights management associated to the content
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Databases & Information Systems (AREA)
- Theoretical Computer Science (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a method and a system for distributing digital television signals, a receiving device and a terminal device. The distribution method of the digital television signal transmits the video program information to the digital television signal receiving end, and receives the encrypted video fed back by the digital television signal receiving end according to the video program information; sending license request data to a digital television signal receiving terminal according to the encrypted video, and receiving license information sent by the digital television signal receiving terminal, wherein the license information is sent by a server terminal when being matched with the license request data according to terminal binding information corresponding to the digital television signal receiving terminal; and decrypting the encrypted video according to the license information to obtain audio and video data. The digital television signal receiving end is communicated to obtain audio and video data, network load is reduced, and meanwhile the problems that television videos are frequently jammed and the definition of a film source is low are solved, and therefore user experience is improved.
Description
Technical Field
The present invention relates to the field of digital television, and in particular, to a method, a system, a receiving apparatus, and a terminal apparatus for distributing digital television signals.
Background
In the related art, the terminal equipment and the digital television signal receiving equipment share the same network when watching the live television broadcast, so that the network load is increased, and some specific television resources cannot be acquired. How to share all television resources while reducing network load and ensure the security of the acquired resources becomes a problem which needs to be solved urgently.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a method for distributing digital television signals, which can reduce network load and enable terminals to share all television resources.
The invention also provides a terminal device.
The invention also provides a device for receiving the digital television signals.
The invention also provides a distribution system of the digital television signal.
A distribution method of a digital television signal according to an embodiment of a first aspect of the present invention, performed by a terminal, includes:
sending video program information to a digital television signal receiving end, and receiving an encrypted video fed back by the digital television signal receiving end according to the video program information;
and sending license request data to the digital television signal receiving terminal according to the encrypted video, and receiving the license information sent by the digital television signal receiving terminal, wherein the license information is sent by the server terminal when being matched with the license request data according to the terminal binding information corresponding to the digital television signal receiving terminal.
The method for distributing the digital television signals according to the embodiment of the invention at least has the following beneficial effects: the method comprises the steps of sending video program information to a digital television signal receiving end, receiving encrypted video fed back by the digital television signal receiving end according to the video program information to obtain video required by a user, sending license request data to the digital television signal receiving end, receiving license information sent by the digital television signal receiving end, obtaining the license information, and carrying out detection operation and decryption playing on the obtained encrypted video, so that the video distribution authority of a terminal is determined through the digital television signal receiving end, the problems that the television video is frequently blocked and the definition of a film source is low are solved, and the user experience is improved.
According to some embodiments of the invention, further comprising:
acquiring terminal information and video equipment information, and sending the terminal information and the video equipment information to the server;
receiving binding success information sent by the server; and when the server side detects that the digital television signal receiving end corresponding to the video equipment information has the distribution right, the server side binds the terminal information with the port information of the digital television signal receiving end for outputting.
A distribution method of a digital television signal according to an embodiment of a second aspect of the present invention, performed by a digital television signal receiving terminal, includes:
receiving video program information sent by a terminal, randomly generating a content key, and sending the video program information and the content key to a server so as to receive corresponding audio and video data fed back by the server according to the video program information;
encrypting the audio and video data according to the content key to obtain an encrypted video, and sending the encrypted video to the terminal;
receiving license request data sent by the terminal according to the encrypted video, sending the license request data to a server side, and receiving license information fed back by the server side according to the license request data, wherein the license information is sent by the server side when the server side is matched with the license request data according to terminal binding information corresponding to a digital television signal receiving end;
and sending the license information to the terminal.
The method for distributing the digital television signals according to the embodiment of the invention at least has the following beneficial effects: the method comprises the steps of receiving video program information sent by a terminal, randomly generating a content key, sending the video program information and the content key to a server to receive corresponding audio and video data, encrypting the obtained audio and video data according to the content key, generating an encrypted video and sending the encrypted video to the terminal, forwarding the obtained license request data to the server to obtain license information, and sending the license information to the terminal. The technical means that the digital television signal receiving end with the distribution authority distributes the encrypted audio and video data to the corresponding terminal is provided through the encryption and distribution of the television program required by the user by the digital television signal receiving end, and meanwhile, the safety of the audio and video data in the transmission process is improved. The digital television signal receiving end distributes the television programs, network load can be effectively reduced, and the problems that television videos are frequently jammed and the definition of a film source is low are solved, so that user experience is improved.
According to some embodiments of the invention, further comprising:
reading preset key box data, and analyzing the preset key box data to obtain an access key;
sending the access key to a server, and receiving authentication information sent by the server according to the access key and a preset database;
and sending port information to the server according to the authentication information.
A distribution method of a digital television signal according to an embodiment of a third aspect of the present invention, performed by a digital television signal receiving terminal, includes:
receiving video program information sent by a digital television signal receiving terminal, acquiring audio and video data corresponding to the video program information in a preset video database, and sending the audio and video data to the digital television signal receiving terminal;
receiving license request data output by the digital television signal receiving terminal, acquiring device binding information corresponding to the digital television signal receiving terminal, and if the device binding information is matched with the license request data, sending the license information to the digital television signal receiving terminal.
The method for distributing the digital television signals according to the embodiment of the invention at least has the following beneficial effects: and the server outputs corresponding audio and video data to the digital television signal receiving end by receiving the video program information. The server is also used for receiving and analyzing the license request data to acquire the terminal information, so as to match the terminal information with the equipment binding information, and sending the license information to the digital television signal receiving end according to the matching result. The transmission path of audio and video data and license information of the terminal, the digital television signal receiving end, the server end, the digital television signal receiving end and the terminal is provided, and the security in the data transmission process is improved through the encryption of the audio and video data and the matching of the license request data. By the method, the network load can be effectively reduced, and the problems that the television video is frequently blocked and the definition of the film source is low are solved, so that the user experience is improved.
According to some embodiments of the invention, further comprising:
receiving an access key output by the digital television signal receiving terminal, and outputting authentication information corresponding to the access key to the digital television signal receiving terminal according to the access key and a preset database;
and receiving and storing the port information sent by the digital television signal receiving end.
According to some embodiments of the invention, further comprising:
receiving terminal information and video equipment information sent by a terminal;
and checking whether a digital television signal receiving end corresponding to the video equipment information has a distribution right, and binding the terminal information with port information of the digital television signal receiving end and outputting binding success information to the terminal when the digital television signal receiving end has the distribution right.
A terminal apparatus according to a fourth aspect embodiment of the present invention includes:
at least one first processor, and,
a first memory communicatively coupled to the at least one first processor; wherein the content of the first and second substances,
the first memory stores instructions that are executed by the at least one first processor, so that the at least one first processor, when executing the instructions, implements the method for distributing digital television signals according to the embodiment of the first aspect of the present invention.
The terminal device according to the embodiment of the invention has at least the following beneficial effects: by adopting the terminal device provided in the implementation of the present invention, a device for implementing the method for distributing digital television signals according to the embodiment of the first aspect of the present invention is provided, so as to achieve the effects of avoiding the waste of network resources and reducing network load caused by directly applying for acquiring program content through a wireless network. Meanwhile, license request data are sent to the digital television signal receiving end, the license information sent by the digital television signal receiving end is received, the license information is obtained, and the obtained encrypted video is subjected to detection operation and decryption playing, so that the safety of the implementation process of the method is improved.
A receiving apparatus of a digital television signal according to an embodiment of the fifth aspect of the present invention includes:
at least one second processor, and,
a second memory communicatively coupled to the at least one second processor; wherein the content of the first and second substances,
the second memory stores instructions that are executed by the at least one second processor, so that the at least one second processor, when executing the instructions, implements the method for distributing digital television signals according to the embodiment of the second aspect of the present invention.
The digital television signal receiving device according to the embodiment of the invention has at least the following beneficial effects: by adopting the receiving device of the digital television signal provided in the implementation of the present invention, a device for implementing the distribution method of the digital television signal according to the embodiment of the first aspect of the present invention is provided, so as to achieve the effects of improving the security of data transmission in the television signal distribution process and reducing the risk of being illegally attacked. In addition, by providing the device for realizing the distribution function of the digital television signal receiving end, the effect of sharing the television resources required by the terminal is realized while the network resource load is reduced.
A distribution system of a digital television signal according to a sixth aspect embodiment of the present invention comprises:
a terminal for performing the method of distributing digital television signals according to the embodiment of the first aspect of the present invention;
a digital television signal receiving apparatus for performing the method of distributing a digital television signal according to the embodiment of the second aspect of the present invention;
a server for executing the distribution method of digital television signals according to the embodiment of the third aspect of the present invention;
the distribution system of the digital television signal according to the embodiment of the invention has at least the following beneficial effects: by providing the terminal, the digital television signal receiving device and the server to execute the method for distributing the digital television signal according to the embodiments of the first, second and third aspects of the present invention, an effective system for distributing the digital television signal is provided, a technical means for distributing the audio and video data and the license information through the digital television signal receiving device is realized, and the security in the data transmission process is improved by encrypting the audio and video data and matching the license request data. By the system, network load can be effectively reduced, and the problems that television videos are frequently jammed and the definition of film sources is low are solved, so that user experience is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the following figures and examples, in which:
fig. 1 is a flow chart of a method for distributing a digital television signal according to an embodiment of the present invention;
fig. 2 is a flow chart illustrating a method for distributing digital television signals according to another embodiment of the present invention;
fig. 3 is a flowchart of a method for distributing a digital television signal according to another embodiment of the present invention;
fig. 4 is a flowchart of a method for distributing a digital television signal according to another embodiment of the present invention;
fig. 5 is a flowchart of a method for distributing a digital television signal according to another embodiment of the present invention;
fig. 6 is a flowchart of a method for distributing a digital television signal according to another embodiment of the present invention;
fig. 7 is a flowchart of a method for distributing a digital television signal according to another embodiment of the present invention;
fig. 8 is a block diagram of a digital television signal distribution system according to an embodiment of the present invention.
Reference numerals:
100. a terminal; 200. a digital television signal receiving apparatus; 300. and (4) a server.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In a first aspect, referring to fig. 1, the present invention provides a method for distributing a digital television signal, performed by a terminal, comprising:
s110, sending video program information to a digital television signal receiving end, and receiving an encrypted video fed back by the digital television signal receiving end according to the video program information;
s120, sending license request data to a digital television signal receiving terminal according to the encrypted video, and receiving license information sent by the digital television signal receiving terminal, wherein the license information is sent by a server terminal when the license information is matched with the license request data according to terminal binding information corresponding to the digital television signal receiving terminal;
and S130, decrypting the encrypted video according to the license information to obtain audio and video data.
The method for distributing the digital television signals obtains the video program information required by the user through the terminal, sends the video program information to the digital television signal receiving terminal, and obtains the encrypted video output by the digital television receiving terminal according to the processing result of the digital television signal receiving terminal. And after receiving the encrypted video, the terminal sends license request data to acquire license information, authenticates the terminal according to the acquired license information, and realizes the function of playing the video program required by the user after the authentication is passed. By the method, the aims of acquiring the video program information, acquiring the encrypted video according to the program information, sending the license request data according to the encrypted video to acquire the license information and playing the video program according to the license information are fulfilled, and the safety and the reliability in the data transmission process are improved. In addition, different frequency points are allocated in the program distribution process, so that the television program and the video program acquired by the terminal are different from each other, the acquisition of high-definition resources on the terminal is realized under the condition of not wasting additional network resources, the network load is reduced, and the terminal can share all television resources.
The terminal is provided with a software program which can realize that a user provides a video program request. The terminal generates a video program request according to the selection of a user and sends the video program request to the server, the server feeds back a video program list corresponding to the terminal according to the video program request, the terminal selects a video program from the video program list according to the user to generate video program information and sends the video program information to the digital television signal receiving end, the digital television signal receiving end sends the video program information to the server to obtain audio and video data and encrypts the audio and video data to obtain encrypted video, therefore, after receiving the encrypted video, the terminal needs to decrypt the encrypted video according to license information fed back by the digital television signal receiving end to check the audio and video data after decrypting the encrypted video according to the license information, thereby limiting any terminal to be randomly connected with the server to obtain the audio and video data, and relieving the communication capacity during video playing, the video playing method and the device have the advantages that the blocking pause during audio and video playing is reduced, the video playing definition is improved, and the user experience is improved.
In other specific embodiments, the terminal supports the Widevine function to implement a signal transmission and distribution function with the server and the digital television signal receiving end, thereby implementing a distribution and reception mechanism for encrypted and authenticated videos and implementing a technical scheme for playing corresponding videos.
Referring to fig. 2, in some embodiments, a method of distributing a digital television signal further comprises:
s140, acquiring the terminal information and the video equipment information, and sending the terminal information and the video equipment information to a server;
s150, receiving binding success information sent by a server; and binding the terminal information with the port information of the digital television signal receiving end for output when the server side detects that the digital television signal receiving end corresponding to the video equipment information has the distribution right.
The method for distributing the digital television signals distinguishes different devices by acquiring the terminal information and the video device information, and sends the terminal information and the video device information to the server through a wireless network. After the server side verifies the terminal information and the video equipment information, the server side outputs the binding success information, and the terminal receives the binding success information and acquires the port information in the binding success information so as to realize the connection between the terminal and the digital television signal receiving end. By the method, the terminal information and the video equipment information are obtained at the terminal and are uploaded to the server side, the server side binds the terminal information by verifying the legality of the video equipment information and outputs the port information to the terminal, and communication connection between the terminal and the digital television signal receiving end is achieved.
In some specific embodiments, the server prestores video device information corresponding to one-to-one information in the digital television signal receiving end, where the video device information includes newspaper information formed by files such as key box information, key box data error detection codes, device identity information, and the like, and the terminal information includes: the terminal serial number. Wherein, the equipment identity information comprises any one of the following: chip ID, serial number file. The terminal reads the equipment identity information input by the user, acquires the terminal information of the terminal and outputs the equipment identity information and the terminal information to the server. The server reads the data output by the terminal, reads the equipment identity information in the data, compares the data with the equipment identity information in the report file prestored by the server to obtain a comparison result, if the comparison result is consistent, binds the digital television signal receiving end and the terminal equipment according to the equipment identity information and the terminal information, and stores the digital television signal receiving end and the terminal equipment to the server according to the format of 'chip ID/serial number + IP address + port number'. When the terminal interacts with the server, the terminal through the comparison receives the IP address and the port number information corresponding to the digital television signal receiving terminal, that is, the terminal receives the port number information corresponding to the digital television signal receiving terminal. Through the Widevine function, the receiving and sending functions and the encrypted transmission of the encrypted content are realized between the terminal and the server, so that the corresponding encrypted file and the matching and binding function are obtained, the identity confirmation matching function among the terminal, the digital television signal receiving end and the server is realized, and the safety of the digital television signal distribution method in the implementation process is improved.
In some other embodiments, when the server does not match the comparison result obtained by receiving the video device information, that is, when the server checks that the corresponding digital television signal receiving end does not have the distribution right according to the video device information, the binding failure information is output to the terminal, and the terminal receives the binding failure information output by the server, where the binding failure information is the binding failure code. The code is used for indicating that the digital television signal receiving end equipment has no distribution authority.
In a second aspect, referring to fig. 3, in some embodiments, the present invention provides a method for distributing a digital television signal, which is performed by a digital television signal receiving end, and includes:
s210, receiving video program information sent by a terminal, randomly generating a content key, and sending the video program information and the content key to a server so as to receive corresponding audio and video data fed back by the server according to the video program information;
s220, encrypting the audio and video data according to the content key to obtain an encrypted video, and sending the encrypted video to the terminal;
s230, the receiving terminal sends the license request data to the server according to the license request data sent by the encrypted video, and receives the license information fed back by the server according to the license request data, wherein the license information is sent by the server when the server is matched with the license request data according to the terminal binding information corresponding to the digital television signal receiving terminal;
and S240, sending the license information to the terminal.
According to the distribution method of the digital television signals, the digital television signal receiving end receives the video program information sent by the terminal, randomly generates the content key and sends the content key and the video program information to the server. And transmits the encrypted video generated by the encryption with the content key to the terminal. When a digital television signal receiving end receives license request data from a terminal, the license request data is forwarded to a server end, the server end is matched with the license request data according to terminal binding information corresponding to the digital television signal receiving end, and if the license request data is matched with the terminal binding information, the digital television signal receiving end receives the license information output by the server end and forwards the license information to the terminal; if not, the server side outputs the error code to the digital television signal receiving end, and the digital television signal receiving end forwards the error code to send to the terminal. The method realizes the matching authentication in the distribution process of the video program and the distribution function of the video file through the digital television signal receiving end, avoids the network load caused by the terminal for acquiring the video program in the use process, can directly distribute the television signal to the terminal through the digital television signal receiving end under the condition that the digital television signal receiving end has the distribution authority by matching the digital television signal receiving end connected to the corresponding terminal, effectively reduces the network load and provides all television resources.
In some specific embodiments, the digital television signal receiving end randomly generates a content key, and encrypts the descrambled audio-video data by using a CENC or HLS ES encryption method according to the content key to generate an encrypted video in an M3U8/MPD format (HLS/DASH protocol) and send the encrypted video to the terminal. The license request data received by the digital television signal receiving end includes: terminal information, video program information. The digital television signal receiving end compares the terminal information in the license request data with the corresponding terminal binding information by the server end by sending the license request data, thereby carrying out identity matching on the terminal sending the license request data. So as to receive the license information output according to the identity matching result sent by the server.
Referring to fig. 4, in some embodiments, the method for distributing a digital television signal further includes:
s250, reading preset key box data, and analyzing the preset key box data to obtain an access key;
s260, sending the access key to the server, and receiving authentication information sent by the server according to the access key and a preset database;
and S270, sending the port information to the server according to the authentication information.
According to the digital television signal distribution method provided by the invention, the digital television signal receiving end processes and reads the equipment identity information by reading the key box data stored in the digital television signal receiving end, uses the equipment identity information as a user name used when the digital television signal receiving end is connected to a network, and obtains the access key by analyzing the key box data. The digital television signal receiving end sends the access key to the server end to pass identity verification, and when authentication information passing the identity verification is received, port information is sent to the server end to achieve connection between the digital television signal receiving end and the terminal, and transmission processes of encrypted video, license request data, license information and other data between the digital television signal receiving end and the terminal are achieved, and accordingly forwarding of television programs through the digital television signal receiving end is achieved.
In some embodiments, the key box data is encrypted by the widevineSDK API interface at the time of factory shipment and written into a flash memory register in the digital television signal receiving end. In the calling process, the corresponding key box ID, key box error detection code (CRC) file and equipment identity information are obtained through reading of the API interface. The method provides an authentication method between the digital television signal receiving end and the server, can ensure the legality of the digital television signal receiving end which requests to access through the digital television signal receiving end equipment information prestored in the server, and binds the key box data and the port information according to the read digital television signal receiving end equipment information to realize the credible connection between the digital television signal receiving end and the terminal. The safety and reliability of the distribution method process of the digital television signals are improved.
In a third aspect, referring to fig. 5, in some embodiments, the present invention provides a method for distributing a digital television signal, performed by a server, including:
s310, receiving video program information sent by a digital television signal receiving terminal, acquiring audio and video data corresponding to the video program information in a preset video database, and sending the audio and video data to the digital television signal receiving terminal;
s320, receiving the license request data output by the digital television signal receiving terminal, acquiring the device binding information corresponding to the digital television signal receiving terminal, and if the device binding information is matched with the license request data, sending the license information to the digital television signal receiving terminal.
According to the distribution method of the digital television signals, the server side receives the video program information, acquires the required video program requirement uploaded by the user, reads the audio and video data corresponding to the video program information according to the preset video database, and sends the audio and video data to the digital television signal receiving end. According to the received license request data output by the digital television signal receiving end, the server side analyzes the license request data to obtain terminal information and video program information, obtains equipment binding information corresponding to the digital television signal receiving end of the transmitted license request data, wherein the equipment binding information comprises the terminal information and key box information, and matches the terminal information of the equipment binding information with the received terminal information. If so, generating license information and sending the license information to a digital television signal receiving terminal, and forwarding the license information to the terminal through the digital television signal receiving terminal; and if not, sending error information to the digital television signal receiving end, and forwarding the error information to the terminal through the digital television signal receiving end.
By the method, when the terminal equipment acquires the video program information, the transmission path of the audio and video file of the terminal-digital television signal receiving end-server end-digital television signal receiving end-terminal is provided, the network load generated by acquiring the audio and video data by directly connecting the terminal to the internet is reduced, the television signal is distributed through the digital television signal receiving end, the problems that the television video is frequently blocked and the definition of a film source is low are solved, and the user experience is improved. Meanwhile, by matching the license request data to output the license information, a method for verifying the legality of the audio/video file is provided, the transmission risk in the process of transmitting the audio/video file through a network is reduced, and the safety of a digital television signal distribution method is improved.
Referring to fig. 6, in some embodiments, a method of distributing a digital television signal further comprises:
s330, receiving the access key output by the digital television signal receiving terminal, and outputting authentication information corresponding to the access key to the digital television signal receiving terminal according to the access key and the preset database.
And S340, receiving and storing the port information sent by the digital television signal receiving end.
According to the distribution method of the digital television signals, the server receives the access key output by the digital television signal receiving terminal, matches the access key according to the information in the preset database, and receives and stores the port information sent by the digital television signal receiving terminal according to the matching result. The credible connection between the digital television receiving end and the server end is realized, the transmission risk in the process of transmitting the audio and video files through the network is reduced, and the safety of the digital television signal distribution method provided by the invention is improved by providing the verification method between the digital television receiving end and the server end.
In some specific embodiments, the server receives an access key output by the digital television signal receiving end, matches files such as key box data in preset database content and key box ID, key box error detection code (CRC) file, device identity information and the like uploaded by the digital television signal receiving end when leaving a factory with the access key to check identity validity of the corresponding digital television signal receiving end, receives port information output by the digital television signal receiving end after identity authentication is passed, and binds the port information with the device identity information to store in the server.
Referring to fig. 7, in some embodiments, a method of distributing a digital television signal further comprises
S350, receiving video equipment information and terminal information sent by a terminal;
and S360, checking whether the digital television signal receiving end corresponding to the video equipment information has the distribution right, and binding the terminal information with the port information of the digital television signal receiving end and outputting binding success information to the terminal when the digital television signal receiving end has the distribution right.
According to the method for distributing the digital television signals, the server receives the video equipment information and the terminal information sent by the terminal, compares the video equipment information with the equipment identity information with the distribution authority stored in the server, if the matching is successful, the terminal information received together with the video equipment information is the terminal capable of receiving the distributed television signals, binds the terminal information with the port information, and outputs the successfully bound information to the terminal, wherein the successfully bound information comprises the port information of the digital television signal receiving end. The method realizes the judgment of whether the video equipment information input by the server side to the terminal has the distribution authority, wherein the video equipment information corresponds to the digital television signal receiving ends one by one. And the terminal output port information connected with the digital television signal receiving end with the distribution authority is used for realizing the communication interaction between the terminal and the digital television signal receiving end, reducing the load generated by connecting the terminal to a network when the terminal acquires the television program, and simultaneously sharing all the television programs so as to provide better and clearer television signals for the terminal.
In a fourth aspect, in some embodiments, the present invention provides a terminal apparatus, comprising:
at least one first processor, and,
a first memory communicatively coupled to the at least one first processor; wherein the content of the first and second substances,
the first memory stores instructions that are executable by the at least one first processor to cause the at least one first processor, when executing the instructions, to implement a method of distributing digital television signals as an embodiment of the first aspect of the invention.
In the terminal device provided by the invention, at least one first memory of the terminal device can be used for acquiring and storing video program information, license request data, terminal information, video equipment information, encrypted video and audio/video data. The at least one first processor of the terminal device may be configured to process and acquire at least one of video program information, license request data, terminal information, video device information, encrypted video, and audio/video data, and implement a communication connection between the terminal and the server, the terminal and the receiving device of the digital television signal, a matching authentication function of the information, and a decryption playing function of the encrypted video, so as to execute the method in the first embodiment of the present invention. By implementing the method for distributing digital television signals according to the embodiment of the first aspect of the invention, the safety and reliability in the data transmission process are improved. In addition, different frequency points are allocated in the program distribution process, so that the television program and the video program acquired by the terminal are different from each other, the acquisition of high-definition resources on the terminal is realized under the condition of not wasting additional network resources, the network load is reduced, and the terminal can share all television resources.
In a fifth aspect, in some embodiments, the present invention provides an apparatus for receiving a digital television signal, comprising:
at least one second processor, and,
a second memory communicatively coupled to the at least one second processor; wherein the content of the first and second substances,
the second memory stores instructions that are executable by the at least one second processor to cause the at least one second processor, when executing the instructions, to implement a method of distributing digital television signals as an embodiment of the second aspect of the invention.
In the receiving device of the digital television signal, at least one second memory can be used for acquiring and storing video program information, license request data, terminal information, video equipment information, encrypted video and audio/video data. The at least one second processor may be configured to process at least one of the acquired video program information, the license request data, the terminal information, the video device information, the encrypted video, and the audio/video data, and implement matching authentication in the distribution process of the video program, and perform a function of distributing the video file through the digital television signal receiving end to perform the method in the second aspect of the present invention. By executing the method in the embodiment of the second aspect of the present invention, matching authentication in the distribution process of the video program is realized, and the distribution function of the video file through the digital television signal receiving end is realized, so that the network load caused by the terminal for acquiring the video program in the use process is avoided, and the television signal can be directly distributed to the terminal through the digital television signal receiving end by matching the digital television signal receiving end connected to the corresponding terminal under the condition that the digital television signal receiving end has the distribution authority, thereby effectively reducing the network load and providing all television resources at the same time.
In a sixth aspect, with reference to fig. 8, in some embodiments, the present invention provides a system for distribution of digital television signals, comprising:
a terminal 100, the terminal 100 being adapted to perform a method of distribution of digital television signals as embodied in the first aspect of the invention;
a digital television signal receiving apparatus 200, the digital television signal receiving apparatus 200 being configured to perform a distribution method of a digital television signal according to an embodiment of the second aspect of the present invention;
By adopting the method for distributing digital television signals according to the embodiment of the first aspect of the present invention, the terminal 100 in the system for distributing digital television signals provided by the present invention improves the security and reliability in the data transmission process. In addition, the frequency points allocated in the program distribution process are different, so that the television program and the video program acquired by the terminal 100 are different from each other, the acquisition of high-definition resources on the terminal 100 is realized under the condition of not wasting additional network resources, and the terminal 100 is enabled to share all television resources while the network load is reduced.
By adopting the method for distributing digital television signals in the embodiment of the second aspect of the present invention, the digital television signal receiving device 200 in the system for distributing digital television signals provided by the present invention realizes matching authentication in the process of distributing video programs, and the function of distributing video files through the digital television signal receiving device 200, avoids network load caused by the terminal 100 in order to obtain video programs in the use process, and can directly distribute television signals to the terminal 100 through the digital television signal receiving device 200 when the digital television signal receiving device 200 has a distribution right by matching the digital television signal receiving device 200 connected to the corresponding terminal 100, thereby effectively reducing network load and providing all television resources.
The server 300 in the digital television signal distribution system provided by the present invention provides a transmission path of audio and video files of "terminal 100-digital television signal receiving apparatus 200-server 300-digital television signal receiving apparatus 200-terminal 100" by adopting the digital television signal distribution method of the third aspect embodiment of the present invention, reduces the network load generated by the acquisition of audio and video data by directly connecting terminal 100 to the internet, and shares all television signals through the signal distribution of server 300. Meanwhile, by matching the license request data to output the license information, a method for verifying the legality of the audio/video file is provided, the transmission risk in the process of transmitting the audio/video file through a network is reduced, and the safety of a digital television signal distribution method is improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Claims (10)
1. A method for distributing a digital television signal, performed by a terminal, comprising:
sending video program information to a digital television signal receiving end, and receiving an encrypted video fed back by the digital television signal receiving end according to the video program information;
sending license request data to the digital television signal receiving terminal according to the encrypted video, and receiving license information sent by the digital television signal receiving terminal, wherein the license information is sent by a server terminal when being matched with the license request data according to terminal binding information corresponding to the digital television signal receiving terminal;
and decrypting the encrypted video according to the license information to obtain audio and video data.
2. The method for distributing a digital television signal according to claim 1, further comprising:
acquiring terminal information and video equipment information, and sending the terminal information and the video equipment information to the server;
receiving binding success information sent by the server; and when the server side detects that the digital television signal receiving end corresponding to the video equipment information has the distribution right, the server side binds the terminal information with the port information of the digital television signal receiving end for outputting.
3. The method for distributing the digital television signal is executed by a digital television signal receiving end and comprises the following steps:
receiving video program information sent by a terminal, randomly generating a content key, and sending the video program information and the content key to a server so as to receive corresponding audio and video data fed back by the server according to the video program information;
encrypting the audio and video data according to the content key to obtain an encrypted video, and sending the encrypted video to the terminal;
receiving license request data sent by the terminal according to the encrypted video, sending the license request data to a server side, and receiving license information fed back by the server side according to the license request data, wherein the license information is sent by the server side when the server side is matched with the license request data according to terminal binding information corresponding to a digital television signal receiving end;
and sending the license information to the terminal.
4. The method for distributing digital television signals according to claim 3, further comprising:
reading preset key box data, and analyzing the preset key box data to obtain an access key;
sending the access key to a server, and receiving authentication information sent by the server according to the access key and a preset database;
and sending port information to the server according to the authentication information.
5. The method for distributing the digital television signal is executed by a server and comprises the following steps:
receiving video program information sent by a digital television signal receiving terminal, acquiring audio and video data corresponding to the video program information in a preset video database, and sending the audio and video data to the digital television signal receiving terminal;
receiving license request data output by the digital television signal receiving terminal, acquiring device binding information corresponding to the digital television signal receiving terminal, and if the device binding information is matched with the license request data, sending the license information to the digital television signal receiving terminal.
6. The method for distributing digital television signals according to claim 5, further comprising:
receiving an access key output by the digital television signal receiving terminal, and outputting authentication information corresponding to the access key to the digital television signal receiving terminal according to the access key and a preset database;
and receiving and storing the port information sent by the digital television signal receiving end.
7. The method for distributing digital television signals according to claim 5, further comprising:
receiving terminal information and video equipment information sent by a terminal;
and checking whether a digital television signal receiving end corresponding to the video equipment information has a distribution right, and binding the terminal information with port information of the digital television signal receiving end and outputting binding success information to the terminal when the digital television signal receiving end has the distribution right.
8. A terminal device, comprising:
at least one first processor, and,
a first memory communicatively coupled to the at least one first processor; wherein the content of the first and second substances,
the first memory stores instructions for execution by the at least one first processor to cause the at least one first processor, when executing the instructions, to implement the method of distributing digital television signals according to any one of claims 1 to 2.
9. A digital television signal receiving apparatus, comprising:
at least one second processor, and,
a second memory communicatively coupled to the at least one second processor; wherein the content of the first and second substances,
the second memory stores instructions for execution by the at least one second processor to cause the at least one second processor, when executing the instructions, to implement the method of distributing digital television signals according to any one of claims 3 to 4.
10. A system for distributing digital television signals, comprising:
a terminal for executing the distribution method of the digital television signal according to any one of claims 1 to 2;
a digital television signal receiving apparatus for performing the distribution method of the digital television signal according to any one of claims 3 to 4;
a server for executing the distribution method of digital television signals according to any one of claims 5 to 7.
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| CN202110899943.2A CN113794905A (en) | 2021-08-06 | 2021-08-06 | Digital television signal distribution method, system, receiving device and terminal device |
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| WO2014161311A1 (en) * | 2013-07-18 | 2014-10-09 | 中兴通讯股份有限公司 | Method, apparatus, and system for sharing digital television signal |
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