CN106686400A - Multi-screen interaction method and system based on set-top box multipath descrambling - Google Patents
Multi-screen interaction method and system based on set-top box multipath descrambling Download PDFInfo
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- CN106686400A CN106686400A CN201611228426.8A CN201611228426A CN106686400A CN 106686400 A CN106686400 A CN 106686400A CN 201611228426 A CN201611228426 A CN 201611228426A CN 106686400 A CN106686400 A CN 106686400A
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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
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
-
- 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
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
- H04N21/23106—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving caching operations
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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
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26258—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists for generating a list of items to be played back in a given order, e.g. playlist, or scheduling item distribution according to such list
-
- 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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to a multi-screen interaction method and system based on set-top box multipath descrambling, belongs to the field of set-top box multipath descrambling, and is intended to allow multiple terminals to access the contents of a set-top box, such as television programs without conflict. In the invention, after being connected to the set-top box, a third-party terminal transmits a request to acquire list information to the set-top box; the set-top box receives the request and transmits the list information to the third-party terminal; the third-party terminal transmits a request to acquire contents according to the acquired list information; the set-top box receives the request and finds identifier information of a content corresponding to the request to acquire contents, acquires segment data corresponding the acquired identifier information according to the found identifier information, saves the identifier information as buffer to a buffer region, establishes an index, saves the segment data in the buffer region as a stream file according to the index, and transmits the file to the third-party terminal; the third-party terminal receives the stream file and outputs the content corresponding to the stream file. The multi-screen interaction method and system based on set-top box multipath descrambling are used to expand digital television application range to provide multi-screen interaction.
Description
Technical field
The present invention relates to Set Top Box multichannel descrambling field.
Background technology
In prior art, digital television middleware software is bound with STB terminal equipment depth, can only be an end
The same time can only watch the function of a set of TV reception in end equipment.Each like when multiple kinsfolks want to watch
TV programme when will clash.And a Set Top Box corresponds to a unique television set, also limits and watches TV
The people of program can only be sitting in front of television set, and can not watch oneself in sofa, the first-class various places of bed according to the hobby of oneself
The TV programme liked.With the rise of the intelligent terminals such as various mobile phones, panel computer, original set-top box device cannot
Multi-screen interactive function is realized with these smart machines, to user very big inconvenience is brought.
The content of the invention
The technical problem to be solved is for the deficiencies in the prior art, there is provided one kind is based on Set Top Box multichannel
The multi-screen interaction method and system of descrambling, can allow multiple terminals while the content such as TV programme watched on Set Top Box and not producing
Conflict, the range of application of expansion of digital television realizes the effect of multi-screen interactive.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of multi-screen interaction method descrambled based on Set Top Box multichannel, is comprised the following steps：
S1, sends the request for obtaining list information to Set Top Box after third party's terminal connection Set Top Box, Set Top Box is received please
Seek and send list information and give third party's terminal；
S2, third party's terminal sends the request for obtaining content according to the list information for obtaining, and Set Top Box receives and asks and look into
The identification information of the content corresponding to the request of the acquisition content is looked for, identification information pair is obtained according to the identification information for finding
The segment data answered simultaneously is saved in buffer area and sets up index as caching；
The segment data of buffer area is preserved into stream file and is sent to third party's terminal by S3, Set Top Box according to the index,
Third party's terminal receives stream file and exports the content corresponding to the stream file.
The invention has the beneficial effects as follows：Multiple terminals is allowed while the content such as TV programme watched on Set Top Box and not producing
Conflict, user third party's terminal see TV programme with it is former be connected Set Top Box with television set after TV reception do not appoint
What difference, can watch TV programme with third party's terminal whenever and wherever possible, extend the range of application of DTV, also be user
Experience there is provided convenient TV program watching, realize the effect of multi-screen interactive.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement：
Further, list information described in the S1 includes representing the Service ID and programm name of program identification；Institute
Stating identification information described in S2 includes：The PID of the PID of pat table, the PID of PID, PCR table, the PID of audio frequency and video of pmt table.
It is using the beneficial effect of above-mentioned further scheme：List information is simply efficiently associated with programm name and program
Service-number；Distinguishing packet with PID can easily from the packet of mixed transport, according to the request of different terminals point
From the packet that each terminal is asked is obtained, the effect that TV programme are watched in multiple terminals is simply efficiently realized.
Further, the process of segment data corresponding to identification information is obtained described in the S2 to be included：Set Top Box uses DEMUX
Each pid value of the module in identification information descrambles to original segment data, is filtrated to get required segment data.
It is using the beneficial effect of above-mentioned further scheme：Can well to the data of mixed transport using DEMUX modules
Descrambling demultiplexing is carried out, descrambling procedure error rate is low, and efficiency is higher.
Further, stream file described in the S3 is standard TS clear stream file.
It is using the beneficial effect of above-mentioned further scheme：TS clear streams file is applied to well television programme data
Transmitting procedure, between Set Top Box and third party's terminal be usually Intranet connection, it is not high to confidentiality requirement, TS clear streams text
Part simplifies the processing procedure of data, improves the efficiency of data transfer.
Further, methods described also includes：
When Set Top Box sends stream file to third party's terminal, if third party's terminal is disconnected with Set Top Box or sent stopping
The request of Current Content is only obtained, Set Top Box interrupts acquisition Current Content and destroys the corresponding caching of buffer area；If third party's end
End sends the request for obtaining other contents, and Set Top Box interrupts acquisition Current Content, destroys the corresponding caching of buffer area and enter institute
State S2 and respond the request.
It is using the beneficial effect of above-mentioned further scheme：User can be certainly when stopping broadcasting program and switch program
The dynamic caching for removing a upper program, improves operational efficiency.
A kind of Multi-screen interaction system descrambled based on Set Top Box multichannel, including：
Contents list acquiring unit, connects for third party's terminal and send acquisition list information to Set Top Box after Set Top Box
Request, Set Top Box receives request Concurrency and send list information to give third party's terminal；
Segment data acquiring unit, the request for obtaining content, machine are sent for third party's terminal according to the list information for obtaining
Top box receives the identification information of the content corresponding to the request for asking and searching the acquisition content, according to the mark letter for finding
Breath obtains segment data corresponding to identification information and is saved in buffer area as caching and sets up index；
Content output unit, preserves into stream file and sends according to the index for Set Top Box by the segment data of buffer area
Receive stream file and export the content corresponding to the stream file to third party's terminal, third party's terminal.
The invention has the beneficial effects as follows：Multiple terminals is allowed while the content such as TV programme watched on Set Top Box and not producing
Conflict, user third party's terminal see TV programme with it is former be connected Set Top Box with television set after TV reception do not appoint
What difference, can watch TV programme with third party's terminal whenever and wherever possible, extend the range of application of DTV, also be user
Experience there is provided convenient TV program watching, realize the effect of multi-screen interactive.
Further, list information described in the contents list acquiring unit includes representing the Service ID of program identification
And programm name；Identification information includes described in the segment data acquiring unit：The PID of pat table, PID, PCR table of pmt table
The PID of PID, the PID of audio frequency and video.
It is using the beneficial effect of above-mentioned further scheme：List information is simply efficiently associated with programm name and program
Service-number；Distinguishing packet with PID can easily from the packet of mixed transport, according to the request of different terminals point
From the packet that each terminal is asked is obtained, the effect that TV programme are watched in multiple terminals is simply efficiently realized.
Further, the segment data acquiring unit includes DEMUX modules, for each pid value pair in identification information
Original segment data is descrambled, and is filtrated to get required segment data.
It is using the beneficial effect of above-mentioned further scheme：Can well to the data of mixed transport using DEMUX modules
Descrambling demultiplexing is carried out, descrambling procedure error rate is low, and efficiency is higher.
Further, stream file described in the content output unit is standard TS clear stream file.
It is using the beneficial effect of above-mentioned further scheme：TS clear streams file is applied to well television programme data
Transmitting procedure, between Set Top Box and third party's terminal be usually Intranet connection, it is not high to confidentiality requirement, TS clear streams text
Part simplifies the processing procedure of data, improves the efficiency of data transfer.
Further, the system also includes：
Interrupt location, for when Set Top Box sends stream file to third party's terminal, if third party's terminal is broken with Set Top Box
Open connection or send the request for stopping obtaining Current Content, Set Top Box interrupts and obtains Current Content and to destroy buffer area corresponding slow
Deposit；If third party's terminal sends the request for obtaining other contents, it is corresponding that Set Top Box interrupts acquisition Current Content, destruction buffer area
Cache and call segment data acquiring unit to respond the request.
It is using the beneficial effect of above-mentioned further scheme：User can be certainly when stopping broadcasting program and switch program
The dynamic caching for removing a upper program, improves the operational efficiency of system.
Description of the drawings
Fig. 1 is a kind of flow chart of the multi-screen interaction method descrambled based on Set Top Box multichannel in the embodiment of the present invention 1；
Fig. 2 is a kind of block diagram of the Multi-screen interaction system descrambled based on Set Top Box multichannel in the embodiment of the present invention 2.
Specific embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
It is non-for limiting the scope of the present invention.
Embodiment 1
As shown in figure 1, a kind of multi-screen interaction method descrambled based on Set Top Box multichannel, is comprised the following steps：
S1, sends the request for obtaining list information to Set Top Box after third party's terminal connection Set Top Box, Set Top Box is received please
Seek and send list information and give third party's terminal；
S2, third party's terminal sends the request for obtaining content according to the list information for obtaining, and Set Top Box receives and asks and look into
The identification information of the content corresponding to the request for obtaining content is looked for, identification information is obtained according to the identification information for finding corresponding
Segment data is simultaneously saved in buffer area and sets up index as caching；
The segment data of buffer area is preserved into stream file and is sent to third party's terminal by S3, Set Top Box according to index, and the 3rd
Square terminal receives stream file and exports the content corresponding to the stream file.
The present embodiment watches the contents such as the TV programme on Set Top Box by multiple terminals and does not produce conflict, Yong Hu simultaneously
Third party's terminal sees that TV programme are connected TV reception after Set Top Box and do not have any difference with former with television set, can be with
Whenever and wherever possible TV programme are watched with third party's terminal, extend the range of application of DTV, also provided the user more
Convenient TV program watching experience, realizes the effect of multi-screen interactive.
Further, list information includes representing the Service ID and programm name of program identification in S1；Mark letter in S2
Breath includes：The PID of the PID of pat table, the PID of PID, PCR table, the PID of audio frequency and video of pmt table.
Specifically, Service ID (service-number) are used for recognizing the program data that third party's terminal request is obtained, program
Title is used for the approximate contents of user's display program, facilitates customer selecting.
PID (Packet Identifier, i.e. PID Packet Identifier) is used for distinguishing packet, and according to PID need can be accurately obtained
The packet wanted；Pat table (Program Association Table, Program Association Table) is that program refers in digital television system
The root node for showing, according to the PID of pat table pat table can be got, and its PID typically could be arranged to 0.Can solve from pat table
The PID of pmt table (Program Map Table, Program Map Table) is separated out, pmt table is obtained according to the PID of pmt table, then from PMT
The PID of basic element (such as video, audio frequency, data) is parsed, and then can just get program data to be played.PCR
Table (Program Clock Reference, program clock reference) is used for preserving program clock reference data, according to PCR tables
PID can get PCR tables, and then synchronizing clock signals, receiving terminal is poorly recovered according to the signal unbiased and send out
The reference clock of sending end (Set Top Box) is synchronous to reach transmitting-receiving.
In the improvement, list information is simply efficiently associated with the service-number of programm name and program；Number is distinguished with PID
Easily from the packet of mixed transport can be asked according to isolated each terminal of request of different terminals according to bag
Packet, simply efficiently realize multiple terminals watch TV programme effect.
Further, the process of segment data corresponding to identification information is obtained in S2 to be included：Set Top Box using DEMUX modules according to
Each pid value in identification information descrambles to original segment data, is filtrated to get required segment data.
Specifically, the signal such as segment data, i.e. video flowing, audio stream or caption stream carries out base unit number during mixed transport
According to.Being mainly used in of DEMUX (Demultiplexer descrambles demultiplexer) module is separated by filtration according to PID and obtains what is needed
Segment data.
In the improvement, well descrambling demultiplexing, descrambling procedure can be carried out to the data of mixed transport using DEMUX modules
Error rate is low, and efficiency is higher.
Further, stream file is standard TS clear stream file in S3.
Specifically, TS (Transport Stream, transport stream) is, for the communication protocol of audio, image and data, to answer
For the real-time transmission program of DVD.TS streams synthesize transport stream, have specifically in a kind of MPEG-2 (video format) standard
It is bright.TS streams are combined by various data, and the data in a TS bag can be video data, voice data, filling data,
List data etc..
In the improvement, TS clear streams file is applied to well the transmitting procedure of television programme data, Set Top Box and
It is usually Intranet connection between tripartite's terminal, not high to confidentiality requirement, TS clear stream files simplify the process of data
Journey, improves the efficiency of data transfer.
Further, methods described also includes：
When Set Top Box sends stream file to third party's terminal, if third party's terminal is disconnected with Set Top Box or sent stopping
The request of Current Content is only obtained, Set Top Box interrupts acquisition Current Content and destroys the corresponding caching of buffer area；If third party's end
End sends the request for obtaining other contents, and Set Top Box interrupts acquisition Current Content, destroys the corresponding caching of buffer area and enter S2
Respond the request.
In the improvement, user stops automatically removing the slow of program when playing program and switching program
Deposit, improve operational efficiency.
Embodiment 2
As shown in Fig. 2 a kind of Multi-screen interaction system descrambled based on Set Top Box multichannel, including：
Contents list acquiring unit, connects for third party's terminal and send acquisition list information to Set Top Box after Set Top Box
Request, Set Top Box receives request Concurrency and send list information to give third party's terminal；
Segment data acquiring unit, the request for obtaining content, machine are sent for third party's terminal according to the list information for obtaining
Top box receives the identification information for asking and searching the content corresponding to the request for obtaining content, is obtained according to the identification information for finding
Take segment data corresponding to identification information and be saved in buffer area as caching and set up index；
Content output unit, preserves into stream file and is sent to the according to index for Set Top Box by the segment data of buffer area
Tripartite's terminal, third party's terminal receives stream file and exports the content corresponding to the stream file.
The present embodiment watches the contents such as the TV programme on Set Top Box by multiple terminals and does not produce conflict, Yong Hu simultaneously
Third party's terminal sees that TV programme are connected TV reception after Set Top Box and do not have any difference with former with television set, can be with
Whenever and wherever possible TV programme are watched with third party's terminal, extend the range of application of DTV, also provided the user more
Convenient TV program watching experience, realizes the effect of multi-screen interactive.
Further, list information includes representing the Service ID and program names of program identification in contents list acquiring unit
Claim；Segment data acquiring unit identification information includes：The PID of pat table, the PID of PID, PCR table of pmt table, the PID of audio frequency and
The PID of video.
Specifically, Service ID (service-number) are used for recognizing the program data that third party's terminal request is obtained, program
Title is used for the approximate contents of user's display program, facilitates customer selecting.
PID (Packet Identifier, i.e. PID Packet Identifier) is used for distinguishing packet, and according to PID need can be accurately obtained
The packet wanted；Pat table (Program Association Table, Program Association Table) is that program refers in digital television system
The root node for showing, according to the PID of pat table pat table can be got, and its PID typically could be arranged to 0.Can solve from pat table
The PID of pmt table (Program Map Table, Program Map Table) is separated out, pmt table is obtained according to the PID of pmt table, then from PMT
The PID of basic element (such as video, audio frequency, data) is parsed, and then can just get program data to be played.PCR
Table (Program Clock Reference, program clock reference) is used for preserving program clock reference data, according to PCR tables
PID can get PCR tables, and then synchronizing clock signals, receiving terminal is poorly recovered according to the signal unbiased and send out
The reference clock of sending end (Set Top Box) is synchronous to reach transmitting-receiving.
In the improvement, list information is simply efficiently associated with the service-number of programm name and program；Number is distinguished with PID
Easily from the packet of mixed transport can be asked according to isolated each terminal of request of different terminals according to bag
Packet, simply efficiently realize multiple terminals watch TV programme effect.
Further, segment data acquiring unit includes DEMUX modules, for each pid value in identification information to original
Segment data is descrambled, and is filtrated to get required segment data.
Specifically, the signal such as segment data, i.e. video flowing, audio stream or caption stream carries out base unit number during mixed transport
According to.Being mainly used in of DEMUX (Demultiplexer descrambles demultiplexer) module is separated by filtration according to PID and obtains what is needed
Segment data.
In the improvement, well descrambling demultiplexing, descrambling procedure can be carried out to the data of mixed transport using DEMUX modules
Error rate is low, and efficiency is higher.
Further, stream file is standard TS clear stream file in content output unit.
Specifically, TS (Transport Stream, transport stream) is for the communication protocol of audio, image and data, most
Early it is applied to the real-time transmission program of DVD.TS streams synthesize transport stream, have in a kind of MPEG-2 (video format) standard in detail
Explanation.TS streams are combined by various data, and the data in a TS bag can be video data, voice data, filling
Data, list data etc..
In the improvement, TS clear streams file is applied to well the transmitting procedure of television programme data, Set Top Box and
It is usually Intranet connection between tripartite's terminal, not high to confidentiality requirement, TS clear stream files simplify the process of data
Journey, improves the efficiency of data transfer.
Further, the system also includes：
Interrupt location, for when Set Top Box sends stream file to third party's terminal, if third party's terminal is broken with Set Top Box
Open connection or send the request for stopping obtaining Current Content, Set Top Box interrupts and obtains Current Content and to destroy buffer area corresponding slow
Deposit；If third party's terminal sends the request for obtaining other contents, it is corresponding that Set Top Box interrupts acquisition Current Content, destruction buffer area
Cache and call segment data acquiring unit to respond the request.
In the improvement, user stops automatically removing the slow of program when playing program and switching program
Deposit, improve the operational efficiency of system.
Present invention achieves Set Top Box multichannel descrambles the function of digital television program, while supporting that multi-channel program is solved parallel
Disturb, wherein will be pushed to set-top decoder by 1 road descrambled program, realize that the work(that television set shows is played and exported to Set Top Box
Can, there is no any difference with former Set Top Box TV reception from the user point of view；As the third party in other equipment
During using to set-top box requests TV reception, the present invention is just non-encrypted using calling corresponding module that the program is descrambled into into TS
The application of request is flowed and returns to, third-party application receives TS clear streams and can play video.
For the project for needing to develop digital television application, the invention provides the multi-screen based on Set Top Box multichannel descrambling is mutual
Dynamic system.Third-party application can be realized not affecting Set Top Box to watch TV programme by the interface of far call the system
Meanwhile, the TV reception on mobile phone, the other-end equipment of flat board does not interfere with each other, and greatly extends DTV
Range of application, has also provided the user convenient TV program watching experience.
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. it is a kind of based on Set Top Box multichannel descramble multi-screen interaction method, it is characterised in that comprise the following steps：
S1, after third party's terminal connection Set Top Box the request for obtaining list information is sent to Set Top Box, and Set Top Box receives request simultaneously
Transmission list information gives third party's terminal；
S2, third party's terminal sends the request for obtaining content according to the list information for obtaining, and Set Top Box is received and asks and search institute
The identification information of the content corresponding to the request for obtaining content is stated, identification information is obtained according to the identification information for finding corresponding
Segment data is simultaneously saved in buffer area and sets up index as caching；
The segment data of buffer area is preserved into stream file and is sent to third party's terminal by S3, Set Top Box according to the index, and the 3rd
Square terminal receives stream file and exports the content corresponding to the stream file.
2. it is according to claim 1 based on Set Top Box multichannel descramble multi-screen interaction method, it is characterised in that in the S1
The list information includes representing the Service ID and programm name of program identification；Identification information includes described in the S2：
The PID of the PID of pat table, the PID of PID, PCR table, the PID of audio frequency and video of pmt table.
3. it is according to claim 2 based on Set Top Box multichannel descramble multi-screen interaction method, it is characterised in that in the S2
The process for obtaining segment data corresponding to identification information includes：Set Top Box is each in identification information using DEMUX modules
Pid value descrambles to original segment data, is filtrated to get required segment data.
4. it is according to claim 3 based on Set Top Box multichannel descramble multi-screen interaction method, it is characterised in that in the S3
The stream file is standard TS clear stream file.
5. the multi-screen interaction method descrambled based on Set Top Box multichannel according to any one of Claims 1-4, its feature exists
In methods described also includes：When Set Top Box sends stream file to third party's terminal, if third party's terminal disconnects with Set Top Box connecting
The request for stopping obtaining Current Content is connect or sends, Set Top Box interrupts acquisition Current Content and destroys the corresponding caching of buffer area；
If third party's terminal sends the request for obtaining other contents, it is corresponding slow that Set Top Box interrupts acquisition Current Content, destruction buffer area
Deposit and respond the request into the S2.
6. it is a kind of based on Set Top Box multichannel descramble Multi-screen interaction system, it is characterised in that the system includes：
Contents list acquiring unit, connects for third party's terminal and send asking for acquisition list information to Set Top Box after Set Top Box
Ask, Set Top Box receives request Concurrency and send list information to give third party's terminal；
Segment data acquiring unit, the request for obtaining content, Set Top Box are sent for third party's terminal according to the list information for obtaining
The identification information of the content corresponding to the request of the acquisition content is asked and searched in reception, is obtained according to the identification information for finding
Take segment data corresponding to identification information and be saved in buffer area as caching and set up index；
Content output unit, preserves into stream file and is sent to the according to the index for Set Top Box by the segment data of buffer area
Tripartite's terminal, third party's terminal receives stream file and exports the content corresponding to the stream file.
7. it is according to claim 6 based on Set Top Box multichannel descramble Multi-screen interaction system, it is characterised in that the content
List information described in list acquiring unit includes representing the Service ID and programm name of program identification；The segment data is obtained
Taking identification information described in unit includes：The PID of pat table, the PID of PID, PCR table of pmt table, the PID of audio frequency and video
PID。
8. it is according to claim 7 based on Set Top Box multichannel descramble Multi-screen interaction system, it is characterised in that the hop count
Include DEMUX modules according to acquiring unit, original segment data is descrambled for each pid value in identification information, filter
Obtain required segment data.
9. it is according to claim 8 based on Set Top Box multichannel descramble Multi-screen interaction system, it is characterised in that the content
Stream file described in output unit is standard TS clear stream file.
10. the Multi-screen interaction system descrambled based on Set Top Box multichannel according to any one of claim 6 to 9, its feature exists
In the system also includes：
Interrupt location, for when Set Top Box sends stream file to third party's terminal, if third party's terminal disconnects with Set Top Box connecting
The request for stopping obtaining Current Content is connect or sends, Set Top Box interrupts acquisition Current Content and destroys the corresponding caching of buffer area；
If third party's terminal sends the request for obtaining other contents, it is corresponding slow that Set Top Box interrupts acquisition Current Content, destruction buffer area
Deposit and call segment data acquiring unit to respond the request.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611228426.8A CN106686400A (en) | 2016-12-27 | 2016-12-27 | Multi-screen interaction method and system based on set-top box multipath descrambling |
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| CN201611228426.8A CN106686400A (en) | 2016-12-27 | 2016-12-27 | Multi-screen interaction method and system based on set-top box multipath descrambling |
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| CN106686400A true CN106686400A (en) | 2017-05-17 |
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Citations (5)
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