CN108156513A - Program descrambling method for recording, set-top box and storage medium - Google Patents
Program descrambling method for recording, set-top box and storage medium Download PDFInfo
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- CN108156513A CN108156513A CN201711438874.5A CN201711438874A CN108156513A CN 108156513 A CN108156513 A CN 108156513A CN 201711438874 A CN201711438874 A CN 201711438874A CN 108156513 A CN108156513 A CN 108156513A
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- descrambling
- descrambler
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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
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
-
- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
- H04N21/43853—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption
-
- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
- H04N21/43853—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption
- H04N21/43856—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption by partial decryption, e.g. decrypting a multiplex stream that has been partially encrypted
-
- 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
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/4424—Monitoring of the internal components or processes of the client device, e.g. CPU or memory load, processing speed, timer, counter or percentage of the hard disk space used
-
- 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
- H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
-
- 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
Abstract
The invention discloses a kind of programs to descramble method for recording, set-top box and storage medium, the method includes：Set-top box judges whether the corresponding program to be recorded of the recording request is the programme televised live when detecting recording request in descrambling by descrambler to programme televised live；Described when it is not the programme televised live to record program, descrambler demand number is extracted from the recording request；When current descrambler useful number is less than the descrambler demand number, the first true descrambling channel is established for the priority section in the program to be recorded by the corresponding descrambler of the descrambler useful number.Since the present invention is when descrambler number is inadequate, the descrambler of programme televised live is not disconnected, but the priority section for program to be recorded connects descrambler, both can guarantee the live-experience of user, and had improved the recording result of program to be recorded, also control production cost.
Description
Technical field
The present invention relates to a kind of intelligent television field more particularly to program descrambling method for recording, set-top box and storage mediums.
Background technology
Performance recording is a basic function in set-top box, and the recording for scrambled program then needs descrambling module
It supports, the use of descrambler will be related to here.But it is often very limited in the hardware descrambler number of chip.And
It may be many roads that the descrambler used is needed in one scrambled program, including audio and video, Multi-audio-frequency, picture and text subtitle etc., see
It is recorded again while seeing program, by being most descrambler for needing twice for normal, in limited descrambler resource
On how to save resource and just become important.
In the application of performance recording, there are many technical solutions, is applied to the main technical solution of top box of digital machine at present and uses
It is several below：
Scheme one, the increased amount of scheme using descrambler on hardware
This scheme is most effective, and descrambler number deficiency is can be solved by increasing the descrambler on hardware
Certainly, and it is this do not need to do on software what it is special handle, it is fairly simple in realization.
Scheme two, the number using descrambler for reducing programme televised live
Since viewing program is for Multi-audio-frequency, in general the same time can only be listen one audio or can
Not open picture and text caption function, live streaming can be thus opened less, some remaining descrambling channels are used to recording.
However, scheme one mainly has the problem of cost, for the industry of this competitive excitation of set-top box, control cost is just
Become to compare pass and build, therefore the expense for increasing hardware inevitably results in the rise of cost, and chip manufacturer not necessarily have it is so much
Chip it is available.It is a kind of live-experience that can be saved the scheme of resource, but be reduction of user in scheme two, and has
Reception system do not unwind disturb channel setting key, may result in some receive system module cisco unity malfunctions.
Invention content
It is a primary object of the present invention to provide a kind of program descrambling method for recording, set-top box and storage medium, it is intended to solve
It is certainly difficult to take into account the technical issues of user experience is with manufacture cost in the prior art.
To achieve the above object, the present invention provides a kind of program descrambling method for recording, the described method comprises the following steps：
Set-top box judges that the recording please when detecting recording request in descrambling by descrambler to programme televised live
Ask whether corresponding program to be recorded is the programme televised live；
Described when it is not the programme televised live to record program, descrambler demand number is extracted from the recording request
Mesh；
When current descrambler useful number is less than the descrambler demand number, by the descrambler useful number pair
The descrambler answered is that the priority section in the program to be recorded establishes the first true descrambling channel.
Preferably, it is described when current descrambler useful number is less than the descrambler demand number, by the descrambling
The corresponding descrambler of device useful number is that the priority section in the program to be recorded is established after the first true descrambling channel, institute
Program descrambling method for recording is stated to further include：
Really descramble the corresponding descrambler of channel by described first to carry out the priority section in the program to be recorded
Descrambling.
Preferably, it is described really to descramble the corresponding descrambler of channel to excellent in the program to be recorded by described first
First partly descrambled, specifically included：
The first data filter corresponding with the described first true descrambling channel, the mapping pass are searched in mapping relations
System includes really descrambling channel and the correspondence of data filter；
The corresponding program data of each priority section is obtained, and is corresponded to each priority section by first data filter
Program data be sent to the corresponding with each priority section described first true descrambling channel；
Really descramble the corresponding descrambler of channel according to described first to descramble the program data received, and preserve
Program data after descrambling.
Preferably, described searched in mapping relations really descrambles corresponding first data filter of channel with described first
Before, the program descrambling method for recording further includes：
Judge whether the described first true descrambling channel is associated with data filter, when the described first true descrambling is logical
When road is not associated with data filter, the described first true descrambling channel and the correspondence of the first data filter are established, and
The correspondence is preserved into the mapping relations.
Preferably, it is described according to the described first true program data progress for descrambling the corresponding descrambler of channel to receiving
Descrambling, and before preserving the program data after descrambling, program descrambling method for recording further includes：
Encrypted descrambling information is extracted from the program data, when the business for detecting default storage region transmission is close
During key, the business cipher key is obtained, encrypted descrambling information is decrypted according to the business cipher key, obtains descrambling letter
Breath；
Correspondingly, it is described according to the described first true program data progress for descrambling the corresponding descrambler of channel to receiving
Descrambling, and the program data after descrambling is preserved, it specifically includes：
According to the corresponding descrambler of the described first true descrambling channel and the descrambling information to the program data that receives
Descrambled, and preserve the program data after descrambling.
Preferably, it is described when current descrambler useful number is less than the descrambler demand number, by the descrambling
The corresponding descrambler of device useful number is that the priority section in the program to be recorded is established after the first true descrambling channel, institute
Program descrambling method for recording is stated to further include：
The first virtual descrambling channel is established for the rest part in the program to be recorded；
Correspondingly, described after the business cipher key that default storage region is sent is detected, the program descrambles recording side
Method further includes：
When detecting the business cipher key that the default storage region is sent to the described first virtual descrambling channel, to described
Business cipher key is intercepted, and is returned to the default storage region and received success flag.
Preferably, it is described to judge whether the corresponding program to be recorded of the recording request is the programme televised live, it is specific to wrap
It includes：
The PID of program to be recorded described in extraction from the recording request, and the PID of the programme televised live is obtained, by institute
The PID for stating the PID and the programme televised live of program to be recorded is compared, and judges that the recording request corresponds to according to comparison result
Program to be recorded whether be the programme televised live.
Preferably, it is described to judge whether the corresponding program to be recorded of the recording request is the live streaming according to comparison result
After program, the program descrambling method for recording further includes：
When judging result is described when it is the programme televised live to record program, obtain the programme televised live second is true
Descramble channel, descrambling recording is carried out to the program to be recorded by the described second true descrambling channel.
In addition, to achieve the above object, the present invention also provides a kind of set-top box, the set-top box includes：Memory, processing
The program descrambling that device and being stored in can be run on the memory and on the processor records program, the program descrambling record
Processing procedure sequence realizes the step of program descrambling method for recording when being performed by the processor.
In addition, to achieve the above object, the present invention also provides a kind of storage medium, program is stored on the storage medium
Descrambling records program, and the program descrambling records the step that the program descrambling method for recording is realized when program is executed by processor
Suddenly.
In the present invention, recording request is detected in descrambling by descrambler to programme televised live by set-top box
When, judge whether the corresponding program to be recorded of the recording request is the programme televised live；It not is institute in the program to be recorded
When stating programme televised live, descrambler demand number is extracted from the recording request；Institute is less than in current descrambler useful number
It is the preferential portion in the program to be recorded by the corresponding descrambler of the descrambler useful number when stating descrambler demand number
Divide and establish the first true descrambling channel.Since the present invention is when descrambler number is inadequate, the descrambler of programme televised live is not disconnected, and
It is the priority section connection descrambler for program to be recorded, had both can guarantee the live-experience of user, and improved program to be recorded
Recording result also controls production cost.
Description of the drawings
Fig. 1 is the set up box structure schematic diagram for the hardware running environment that the embodiment of the present invention is related to；
Fig. 2 is the flow diagram that program of the present invention descrambles method for recording first embodiment；
Fig. 3 is the flow diagram that program of the present invention descrambles method for recording second embodiment；
Fig. 4 is the flow diagram that program of the present invention descrambles method for recording 3rd embodiment；
Fig. 5 is the flow diagram that program of the present invention descrambles method for recording fourth embodiment.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The solution of the embodiment of the present invention is mainly：Programme televised live is being descrambled by descrambler by set-top box
In when detecting recording request, judge whether the corresponding program to be recorded of the recording request is the programme televised live；Described
When it is not the programme televised live to record program, descrambler demand number is extracted from the recording request；In current descrambling
When device useful number is less than the descrambler demand number, wait to record to be described by the corresponding descrambler of the descrambler useful number
Priority section in program processed establishes the first true descrambling channel.Due to when descrambler number is inadequate, not disconnecting programme televised live
Descrambler, but for program to be recorded priority section connection descrambler, both can guarantee the live-experience of user, and improved and treat
The recording result of program is recorded, also controls production cost.
With reference to Fig. 1, Fig. 1 is the set up box structure schematic diagram of hardware running environment that the embodiment of the present invention is related to.
As shown in Figure 1, the set-top box can include：Processor 1001, such as CPU, communication bus 1002, user interface
1003, network interface 1004, memory 1005.Wherein, communication bus 1002 is used to implement the connection communication between these components.
User interface 1003 can include display screen (Display), optional user interface 1003 can also include standard wireline interface,
Wireless interface.Network interface 1004 can optionally include standard wireline interface and wireless interface (such as WI-FI interfaces).Storage
Device 1005 can be high-speed RAM memory or the memory (non-volatile memory) of stabilization, such as disk
Memory.Memory 1005 optionally can also be the storage server independently of aforementioned processor 1001.
It, can be with it will be understood by those skilled in the art that the structure shown in Fig. 1 does not form the restriction to the set-top box
Including either combining certain components or different components arrangement than illustrating more or fewer components.
As shown in Figure 1, as operating system, network communication mould can be included in a kind of memory 1005 of storage medium
Block, Subscriber Interface Module SIM and program descrambling record program.
The server calls the program stored in memory 1005 descrambling to record program, and perform by processor 1001
It operates below：
Set-top box judges that the recording please when detecting recording request in descrambling by descrambler to programme televised live
Ask whether corresponding program to be recorded is the programme televised live；
Described when it is not the programme televised live to record program, descrambler demand number is extracted from the recording request
Mesh；
When current descrambler useful number is less than the descrambler demand number, by the descrambler useful number pair
The descrambler answered is that the priority section in the program to be recorded establishes the first true descrambling channel.
Further, processor 1001 can call the program stored in memory 1005 to descramble and record program, also perform
It operates below：
Really descramble the corresponding descrambler of channel by described first to carry out the priority section in the program to be recorded
Descrambling.
Further, processor 1001 can call the program stored in memory 1005 to descramble and record program, also perform
It operates below：
The first data filter corresponding with the described first true descrambling channel, the mapping pass are searched in mapping relations
System includes really descrambling channel and the correspondence of data filter；
The corresponding program data of each priority section is obtained, and is corresponded to each priority section by first data filter
Program data be sent to the corresponding with each priority section described first true descrambling channel；
Really descramble the corresponding descrambler of channel according to described first to descramble the program data received, and preserve
Program data after descrambling.
Further, processor 1001 can call the program stored in memory 1005 to descramble and record program, also perform
It operates below：
Judge whether the described first true descrambling channel is associated with data filter, when the described first true descrambling is logical
When road is not associated with data filter, the described first true descrambling channel and the correspondence of the first data filter are established, and
The correspondence is preserved into the mapping relations.
Further, processor 1001 can call the program stored in memory 1005 to descramble and record program, also perform
It operates below：
Encrypted descrambling information is extracted from the program data, when the business for detecting default storage region transmission is close
During key, the business cipher key is obtained, encrypted descrambling information is decrypted according to the business cipher key, obtains descrambling letter
Breath；
Correspondingly, it is described according to the described first true program data progress for descrambling the corresponding descrambler of channel to receiving
Descrambling, and the program data after descrambling is preserved, it specifically includes：
According to the corresponding descrambler of the described first true descrambling channel and the descrambling information to the program data that receives
Descrambled, and preserve the program data after descrambling.
Further, processor 1001 can call the program stored in memory 1005 to descramble and record program, also perform
It operates below：
The first virtual descrambling channel is established for the rest part in the program to be recorded；
Correspondingly, described after the business cipher key that default storage region is sent is detected, the program descrambles recording side
Method further includes：
When detecting the business cipher key that the default storage region is sent to the described first virtual descrambling channel, to described
Business cipher key is intercepted, and is returned to the default storage region and received success flag.
Further, processor 1001 can call the program stored in memory 1005 to descramble and record program, also perform
It operates below：
The PID of program to be recorded described in extraction from the recording request, and the PID of the programme televised live is obtained, by institute
The PID for stating the PID and the programme televised live of program to be recorded is compared, and judges that the recording request corresponds to according to comparison result
Program to be recorded whether be the programme televised live.
Further, processor 1001 can call the program stored in memory 1005 to descramble and record program, also perform
It operates below：
When judging result is described when it is the programme televised live to record program, obtain the programme televised live second is true
Descramble channel, descrambling recording is carried out to the program to be recorded by the described second true descrambling channel.
In the present embodiment, recording request is detected in descrambling by descrambler to programme televised live by set-top box
When, judge whether the corresponding program to be recorded of the recording request is the programme televised live；It not is institute in the program to be recorded
When stating programme televised live, descrambler demand number is extracted from the recording request；Institute is less than in current descrambler useful number
It is the preferential portion in the program to be recorded by the corresponding descrambler of the descrambler useful number when stating descrambler demand number
Divide and establish the first true descrambling channel.Since the present embodiment is when descrambler number is inadequate, the descrambler of programme televised live is not disconnected,
But the priority section for program to be recorded connects descrambler, both can guarantee the live-experience of user, and had improved program to be recorded
Recording result, also control production cost.
Based on above-mentioned hardware configuration, the embodiment of program descrambling method for recording of the present invention is proposed.
With reference to Fig. 2, Fig. 2 is the flow diagram that program of the present invention descrambles method for recording first embodiment.
In the first embodiment, the program descrambling method for recording includes the following steps：
Step S10：Set-top box judges institute when detecting recording request in descrambling by descrambler to programme televised live
State whether the corresponding program to be recorded of recording request is the programme televised live.
It should be noted that the set-top box (Set Top Box, STB) is a connection television set and outside source
Equipment, the digital signal of compression can be converted to television content by set-top box, and the television content is shown on a television set
Out, the content that set-top box receives includes the parts such as image, audio, the Multi-audio-frequency of TV programme.The descrambler is the machine
The hardware device descrambled in top box to scrambled television signal, wherein, scrambling is referred in TV signal transmitting terminal, change or
Certain characteristics of TV signal are controlled, unauthorized person is made to receive the TV signal of interference and clearly TV Festival can not be watched
Mesh, and authorized user is equipped with the descrambler in set-top box, and the TV wire size after scrambling can be descrambled, it is clear to watch
Clear picture-and-sound.
It is understood that performance recording is a basic function of set-top box, in order to be solved when carrying out performance recording
Program data after disturbing will occupy descrambler resource.When TV is playing, TV programme are recorded, programme televised live with
Program is recorded to be both needed to occupy descrambler resource, it, will be right for the viewing effect of balanced programme televised live and the use of descrambler resource
The descrambling for recording program is suitably reduced.The recording request refers to the request that user records specified TV programme.
Due to the live streaming of same program same packet identifier (Packet IDentifier, PID) corresponding with recording, programme televised live
With being corresponding solution when it is not same program to record program with programme televised live when it is same program to record program
Strategy is not consistent, therefore will determine that whether the corresponding program to be recorded of the recording request is the programme televised live.
In the concrete realization, set-top box first descrambles programme televised live by descrambler, so that the programme televised live is clear
It is clear to be shown on television screen, it, will be from when set-top box receives input by user include wait the recording request for recording program
Program to be recorded is extracted in the recording request, and the program to be recorded is compared with currently playing programme televised live,
Whether program to be recorded described in judgement is the programme televised live.
Step S20：Described when it is not the programme televised live to record program, descrambler is extracted from the recording request
Demand number.
It is understood that the descrambler demand number refers to the descrambler number needed for program to be recorded described in descrambling
Mesh, when descrambling to TV programme, if TV programme are divided into stem portion, including image, audio, Multi-audio-frequency and picture and text word
Curtain etc., each section of TV programme analyzes the program to be recorded to descrambling in requisition for a certain amount of descrambler,
The descrambler number recorded needed for the program to be recorded, i.e., described descrambler demand number can be obtained.
In the concrete realization, when generating the recording request, the program to be recorded will be analyzed, described in acquisition
Program to be recorded descrambles corresponding descrambler demand number, according to the information such as the program to be recorded and descrambler demand number
Generate the recording request.So as to make set-top box described in judgement wait record program be not the programme televised live when, to the record
System request is analyzed, and the descrambler demand number is extracted from the recording request.
Step S30：It, can by the descrambler when current descrambler useful number is less than the descrambler demand number
With the corresponding descrambler of number the first true descrambling channel is established for the priority section in the program to be recorded.
It should be noted that the current descrambler useful number refers to that whole descrambler numbers subtract in set-top box
The current descrambler number for occupying descrambler number and other unavailable descrambler numbers and being obtained, that is, be currently able to for for
The number of descrambler that the program to be recorded is descrambled, the corresponding descrambler of the descrambler useful number refer to currently
The unappropriated descrambler that can be used for being descrambled for the program to be recorded.Priority section refers to seeing televiewer
See TV programme more part and parcel, if such as TV programme are divided into stem portion, including image, audio, Multi-audio-frequency and
Each section is arranged a priority, preceding relative to posterior as excellent by picture and text subtitle etc. according to viewing demand and experience
First part, for televiewer, image and audio are the most basic parts of viewing program, thus image and audio relative to
Multi-audio-frequency and picture and text subtitle are priority sections.The priority section of the program to be recorded refers to the preferential of the program to be recorded
Preceding Program sections in sequence.
It is understood that first real channel refers to really connecting with descrambler, TV programme can be carried out
The descrambling channel of descrambling.It, necessarily can not be to institute when the current descrambler useful number is less than the descrambler demand number
The each section for stating program to be recorded is descrambled, therefore will choose priority section in each section of the program to be recorded,
First real channel is established for the priority section, waits to record section to descramble the priority section, described in raising
Purpose recording result.
In the present embodiment, recording request is detected in descrambling by descrambler to programme televised live by set-top box
When, judge whether the corresponding program to be recorded of the recording request is the programme televised live；It not is institute in the program to be recorded
When stating programme televised live, descrambler demand number is extracted from the recording request；Institute is less than in current descrambler useful number
It is the preferential portion in the program to be recorded by the corresponding descrambler of the descrambler useful number when stating descrambler demand number
Divide and establish the first true descrambling channel.Since the present embodiment is when descrambler number is inadequate, the descrambler of programme televised live is not disconnected,
But the priority section for program to be recorded connects descrambler, both can guarantee the live-experience of user, and had improved program to be recorded
Recording result, also control production cost.
With reference to Fig. 3, Fig. 3 is the flow diagram that program of the present invention descrambles method for recording second embodiment, based on above-mentioned Fig. 2
Shown embodiment proposes the second embodiment of program descrambling method for recording of the present invention.
In a second embodiment, after the step S30, the program descrambling method for recording further includes：
Step S40：The corresponding descrambler of channel is really descrambled to preferential in the program to be recorded by described first
Part is descrambled.
It is understood that after the priority section for recording program establishes the first descrambling channel, institute will be passed through to be described
The first true descrambling channel is stated to descramble the priority section in the program to be recorded.
Further, the step S40, specifically includes：
Step S401：It is searched in mapping relations and really descrambles corresponding first data filter of channel with described first,
The mapping relations include really descrambling channel and the correspondence of data filter.
It should be noted that before scrambled television signal enters descrambling channel, can be made by the data filter
Different scrambled television signals enters respectively correctly descrambling channel, therefore, after the first true descrambling channel is established, will look into
The first data filter corresponding with the first descrambling channel is looked for, so that the priority section enters correctly descrambling channel.
Step S402：The corresponding program data of each priority section is obtained, and will be each excellent by first data filter
The corresponding program data in first part is sent to the corresponding with each priority section described first true descrambling channel.
It is understood that after data filter is determined, the corresponding program data of each priority section will be obtained, it is described
Program data refers to the corresponding TV signal of the program to be recorded.First real channel includes a plurality of descrambling channel,
Every descrambling channel corresponds to different priority sections, and first data filter includes multiple data filters, per number
It is corresponding from the first different descrambling channels according to filter, therefore, after obtaining program data, it can be incited somebody to action by the first data filter
Each program data is sent to the corresponding first true descrambling channel.
In the concrete realization, the corresponding program data of each priority section is obtained, including image data and audio data, is passed through
Image data is sent to the corresponding with image data first true descrambling channel by corresponding first data filter of image data.
Certainly, audio data is sent to the corresponding with audio data first true descrambling channel in the same way.
Step S403：Really descramble the corresponding descrambler of channel according to described first to solve the program data received
It disturbs, and preserves the program data after descrambling.
It is understood that after the program data is received, will be corresponded to by the described first true descrambling channel
Descrambler each program data is descrambled, and image, audio and the other Data Synthesis videos after descrambling are stored.
Further, before the step S401, the program descrambling method for recording further includes：
Step S400：Judge whether the described first true descrambling channel is associated with data filter, when described first
When true descrambling channel is not associated with data filter, the described first true descrambling channel and pair of the first data filter are established
It should be related to, and the correspondence is preserved into the mapping relations.
It should be noted that the correspondence comprising true descrambling channel and data filter in the mapping relations,
When establishing the mapping relations, only the true descrambling channel not being associated with data filter is associated, therefore, will determine that
Whether the described first true descrambling channel is associated with data filter, the described first true descrambling channel not with data mistake
Filter be associated with when, obtain the first data filter, and will described first really descrambling channel and first data filter into
Row association, to establish the correspondence of the described first true descrambling channel and the first data filter, and by the correspondence
It preserves into the mapping relations.
In the present embodiment, really descramble corresponding first data of channel with described first by being searched in mapping relations
Filter, the mapping relations include really descrambling channel and the correspondence of data filter, obtain each priority section pair
The program data answered, and by first data filter by the corresponding program data of each priority section be sent to it is each preferential
The corresponding described first true descrambling channel in part, according to the described first true descrambling channel corresponding descrambler to receiving
Program data is descrambled, and preserves the program data after descrambling.Due to the present embodiment by data filter by each preferential portion
Corresponding program data is divided to be sent to the corresponding with each priority section described first true descrambling channel, ensure that program data energy
It is enough to enter correctly descrambling channel, improve descrambling effect.
With reference to Fig. 4, Fig. 4 is the flow diagram that program of the present invention descrambles method for recording 3rd embodiment, based on above-mentioned Fig. 3
Shown embodiment proposes the 3rd embodiment of program descrambling method for recording of the present invention.
In the present embodiment, before the step S403, the program descrambling method for recording further includes：
Step S4031：Encrypted descrambling information is extracted from the program data, when detecting default storage region hair
During the business cipher key sent, the business cipher key is obtained, encrypted descrambling information is decrypted according to the business cipher key, is obtained
Obtain descrambling information.
It should be noted that set-top box receives the TV signal after scrambling and believes through the encrypted descrambling of business cipher key
Breath, the descrambling information for how the information descrambled to the TV signal, the transmitting terminal of TV signal passes through the business
Key pair descrambling information is encrypted, to ensure that descrambling information is not cracked, so as to make Reinforced turf link safer.It is described pre-
It is close for sending the business to the set-top box of authorized user if region refers to drawing the storage region taken in set-top box in advance
Key, unauthorized user will be unable to obtain business cipher key, more can not be to TV signal so as to which descrambling information can not be decrypted
Descrambled.Meeting simultaneous transmission encrypted descrambling information during the program data transmission, after the business cipher key is obtained, leads to
It crosses the business cipher key encrypted descrambling information is decrypted, the descrambling information can be obtained.
In the concrete realization, when receiving the program data, encrypted solution is extracted from the program data
Information is disturbed, and business cipher key is obtained from default storage region, the encrypted descrambling information is solved according to the business cipher key
It is close, you can to obtain the descrambling information.
Further, the step S403, specifically includes：
Step S4032：The corresponding descrambler of channel is really descrambled with the descrambling information to receiving according to described first
Program data descrambled, and preserve descrambling after program data.
It is understood that after the descrambling information is obtained, the descrambler corresponding to the described first true descrambling channel
The program data received will be descrambled, and the program data after descrambling is stored by the descrambling information, with
For being watched after user.
Further, after the step S30, the program descrambling method for recording further includes：
Step S50：The first virtual descrambling channel is established for the rest part in the program to be recorded.
It should be noted that the described first virtual descrambling channel is virtual descrambling channel, so that the program to be recorded
In each section be respectively provided with descrambling channel, but can not will descramble in television signal transmission to descrambler.Its role is to,
When described when certain part for recording program does not have descrambling channel, although the part, which does not unwind, is disturbed channel, the part is still
PID can be generated, and the part is encrypted before television reception end is transmitted to, for this PID encrypted, if do not set
Descrambling channel is put, the default storage region cisco unity malfunction will be made, therefore, for the rest part of the program to be recorded
The first virtual descrambling channel is established, can guarantee the default storage region normal work.
Correspondingly, after the step S4031, the program descrambling method for recording further includes：
Step S4033：Detecting that the business that the default storage region is sent to the described first virtual descrambling channel is close
During key, the business cipher key is intercepted, and is returned to the default storage region and receives success flag.
It is understood that since the described first virtual descrambling channel is not true descrambling channel, it is not connected to true
Descrambler, therefore, will be to described when the default storage region sends business cipher key to the described first virtual descrambling channel
Business cipher key is intercepted, and is returned and received success flag to the default storage region, so that the default storage region is protected
Hold normal operation.
In the present embodiment, after business cipher key is obtained with encrypted descrambling information, added by the business cipher key pair
Descrambling information after close is decrypted, and obtains descrambling information, realizes and treats the program data for recording program and descrambled, also logical
It crosses and establishes the normal work that the first virtual descrambling channel maintains the default storage region.
With reference to Fig. 5, Fig. 5 is the flow diagram that program of the present invention descrambles method for recording fourth embodiment, based on above-mentioned Fig. 2
Shown embodiment proposes the fourth embodiment of program descrambling method for recording of the present invention.
In the present embodiment, the step S10, specifically includes：
Step S101：The PID of program to be recorded described in extraction from the recording request, and obtain the programme televised live
PID, the PID of the PID and the programme televised live of the program to be recorded are compared, and judge the recording according to comparison result
Ask whether corresponding program to be recorded is the programme televised live.
It is understood that the live streaming due to same program has identical PID with recording, by comparing institute
The PID of program to be recorded and the programme televised live is stated to judge whether the program to be recorded is the programme televised live.
Further, after the step S101, the program descrambling method for recording further includes：
Step S102：When judging result is described when it is the programme televised live to record program, the programme televised live is obtained
The second true descrambling channel, descrambling recording is carried out to the program to be recorded by the described second true descrambling channel.
It should be noted that when the judging result is described when it is the programme televised live to record program, the live streaming
Each section of program, comprising image, audio, Multi-audio-frequency and picture and text subtitle, establishing has true descrambling channel, therefore, in institute
It states when it is the programme televised live to record program, the true descrambling channel of the programme televised live can be used to the program to be recorded
Descrambled, without occupying other descrambler, descrambler resource can be saved.
Certainly, will be that the program to be recorded is established after the second true descrambling channel for obtaining the programme televised live
Channel is virtually descrambled with the described second true descrambling channel corresponding second, to ensure the normal fortune of the default storage region
Row.
Further, after the step S30, the method further includes：
Set-top box by descrambler to record during program descrambles receive cut platform and ask when, platform is cut described in judgement please
Ask whether corresponding programme televised live is the recording program；
When the programme televised live is the recording program, by true descrambling channel and the recording of the programme televised live
The virtual descrambling channel of program swaps, and is recorded by the true descrambling channel after exchange to recording program, and to handing over
Virtual descrambling channel after changing is closed.
It should be noted that when descrambler descrambles programme televised live with recording program, if programme televised live is with recording
Program is same program, and programme televised live connection is true descrambling channel, and record program connection is the true descrambling channel pair
The virtual descrambling channel answered.When platform request is cut in user's input, since record program connection is virtual descrambling channel, if directly
The true descrambling channel of programme televised live is closed, will make recording program that can not descramble, it therefore, will be to the true solution of programme televised live
It disturbs channel to swap with the virtual descrambling channel for recording program, after the swap, records program and connect the true descrambling
Channel carries out continuing to record, and programme televised live connects the virtual descrambling channel, and when closing the programme televised live to the virtual descrambling
Channel is closed.Certainly, when it is different programs that programme televised live is from recording program, the true descrambling channel of programme televised live is closed
Influence is had no on recording program, directly the true descrambling channel of programme televised live will be closed.
Further, before the true descrambling channel to programme televised live is closed, the method further includes：
The true descrambling channel is turned off with the association of corresponding data filter.
It is understood that each descrambling channel is had to before being turned off with the corresponding data of associated PID before
Filter disconnects, and disconnection is associated inverse process.Since only true descrambling channel has associated data filter, because
This, the process of disconnection does not need to distinguish live streaming or recording, only need to judge whether the corresponding PID of the descrambling channel has true solution
Channel is disturbed, is turned off to really descrambling channel with being associated with for data filter, to virtual descrambling channel without disconnecting.
In the present embodiment, the PID of program to be recorded described in being extracted from the recording request, and obtain the live streaming section
Purpose PID compares the PID of the PID and the programme televised live of the program to be recorded, according to judging comparison result
Whether the corresponding program to be recorded of recording request is the programme televised live, is described straight when judging result is the program to be recorded
When broadcasting program, the second true descrambling channel of the programme televised live is obtained, is treated by the described second true descrambling channel to described
It records program and carries out descrambling recording.Due to being compared by PID, it can quickly determine whether are program to be recorded and programme televised live
For same program, improve operational efficiency, when wait record program be programme televised live when, directly pass through the true descrambling of programme televised live
Channel is treated recording program and is descrambled, and saves descrambler resource.
In addition, the embodiment of the present invention also proposes a kind of storage medium, program descrambling is stored on the storage medium and is recorded
Program, the program descrambling, which is recorded, realizes following operation when program is executed by processor：
Set-top box judges that the recording please when detecting recording request in descrambling by descrambler to programme televised live
Ask whether corresponding program to be recorded is the programme televised live；
Described when it is not the programme televised live to record program, descrambler demand number is extracted from the recording request
Mesh；
When current descrambler useful number is less than the descrambler demand number, by the descrambler useful number pair
The descrambler answered is that the priority section in the program to be recorded establishes the first true descrambling channel.
Further, the program descrambling, which is recorded when program is executed by processor, also realizes following operation：
Really descramble the corresponding descrambler of channel by described first to carry out the priority section in the program to be recorded
Descrambling.
Further, the program descrambling, which is recorded when program is executed by processor, also realizes following operation：
The first data filter corresponding with the described first true descrambling channel, the mapping pass are searched in mapping relations
System includes really descrambling channel and the correspondence of data filter；
The corresponding program data of each priority section is obtained, and is corresponded to each priority section by first data filter
Program data be sent to the corresponding with each priority section described first true descrambling channel；
Really descramble the corresponding descrambler of channel according to described first to descramble the program data received, and preserve
Program data after descrambling.
Further, the program descrambling, which is recorded when program is executed by processor, also realizes following operation：
Judge whether the described first true descrambling channel is associated with data filter, when the described first true descrambling is logical
When road is not associated with data filter, the described first true descrambling channel and the correspondence of the first data filter are established, and
The correspondence is preserved into the mapping relations.
Further, the program descrambling, which is recorded when program is executed by processor, also realizes following operation：
Encrypted descrambling information is extracted from the program data, when the business for detecting default storage region transmission is close
During key, the business cipher key is obtained, encrypted descrambling information is decrypted according to the business cipher key, obtains descrambling letter
Breath；
Correspondingly, it is described according to the described first true program data progress for descrambling the corresponding descrambler of channel to receiving
Descrambling, and the program data after descrambling is preserved, it specifically includes：
According to the corresponding descrambler of the described first true descrambling channel and the descrambling information to the program data that receives
Descrambled, and preserve the program data after descrambling.
Further, the program descrambling, which is recorded when program is executed by processor, also realizes following operation：
The first virtual descrambling channel is established for the rest part in the program to be recorded；
Correspondingly, described after the business cipher key that default storage region is sent is detected, the program descrambles recording side
Method further includes：
When detecting the business cipher key that the default storage region is sent to the described first virtual descrambling channel, to described
Business cipher key is intercepted, and is returned to the default storage region and received success flag.
Further, the program descrambling, which is recorded when program is executed by processor, also realizes following operation：
The PID of program to be recorded described in extraction from the recording request, and the PID of the programme televised live is obtained, by institute
The PID for stating the PID and the programme televised live of program to be recorded is compared, and judges that the recording request corresponds to according to comparison result
Program to be recorded whether be the programme televised live.
Further, the program descrambling, which is recorded when program is executed by processor, also realizes following operation：
When judging result is described when it is the programme televised live to record program, obtain the programme televised live second is true
Descramble channel, descrambling recording is carried out to the program to be recorded by the described second true descrambling channel.
In the present embodiment, recording request is detected in descrambling by descrambler to programme televised live by set-top box
When, judge whether the corresponding program to be recorded of the recording request is the programme televised live；It not is institute in the program to be recorded
When stating programme televised live, descrambler demand number is extracted from the recording request；Institute is less than in current descrambler useful number
It is the preferential portion in the program to be recorded by the corresponding descrambler of the descrambler useful number when stating descrambler demand number
Divide and establish the first true descrambling channel.Since the present embodiment is when descrambler number is inadequate, the descrambler of programme televised live is not disconnected,
But the priority section for program to be recorded connects descrambler, both can guarantee the live-experience of user, and had improved program to be recorded
Recording result, also control production cost.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or system including a series of elements not only include those elements, and
And it further includes other elements that are not explicitly listed or further includes intrinsic for this process, method, article or system institute
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
Also there are other identical elements in the process of element, method, article or system.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
The use of word first, second, and third does not indicate that any sequence, can these words be construed to title.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme of the present invention substantially in other words does the prior art
Going out the part of contribution can be embodied in the form of software product, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), used including some instructions so that a station terminal equipment (can be mobile phone, computer takes
Be engaged in device, air conditioner or the network equipment etc.) perform method described in each embodiment of the present invention.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of program descrambles method for recording, which is characterized in that the program descrambling method for recording includes the following steps：
Set-top box judges the recording request pair when detecting recording request in descrambling by descrambler to programme televised live
Whether the program to be recorded answered is the programme televised live；
Described when it is not the programme televised live to record program, descrambler demand number is extracted from the recording request；
It is corresponding by the descrambler useful number when current descrambler useful number is less than the descrambler demand number
Descrambler is that the priority section in the program to be recorded establishes the first true descrambling channel.
2. program as described in claim 1 descrambles method for recording, which is characterized in that described in current descrambler useful number
It is in the program to be recorded by the corresponding descrambler of the descrambler useful number during less than the descrambler demand number
Priority section is established after the first true descrambling channel, and the program descrambling method for recording further includes：
Really descramble the corresponding descrambler of channel by described first to descramble the priority section in the program to be recorded.
3. program as claimed in claim 2 descrambles method for recording, which is characterized in that described logical by the described first true descrambling
The corresponding descrambler in road descrambles the priority section in the program to be recorded, and specifically includes：
It is searched in mapping relations and really descrambles corresponding first data filter of channel with described first, in the mapping relations
Correspondence including really descrambling channel and data filter；
Obtain the corresponding program data of each priority section, and by first data filter by the corresponding section of each priority section
Mesh number really descrambles channel according to being sent to corresponding with each priority section described first；
Really descramble the corresponding descrambler of channel according to described first to descramble the program data received, and preserve descrambling
Program data afterwards.
4. program as claimed in claim 3 descrambles method for recording, which is characterized in that it is described searched in mapping relations with it is described
Before first really descrambles corresponding first data filter of channel, the program descrambling method for recording further includes：
Judge whether the described first true descrambling channel is associated with data filter, really descramble channel not when described first
When being associated with data filter, the described first true descrambling channel and the correspondence of the first data filter are established, and by institute
Correspondence is stated to preserve into the mapping relations.
5. program as claimed in claim 4 descrambles method for recording, which is characterized in that described logical according to the described first true descrambling
The corresponding descrambler in road descrambles the program data received, and preserve descrambling after program data before, the program
Descrambling method for recording further includes：
Encrypted descrambling information is extracted from the program data, when the business cipher key for detecting default storage region transmission
When, the business cipher key is obtained, encrypted descrambling information is decrypted according to the business cipher key, obtains descrambling information；
Correspondingly, it is described that the program data received is solved according to the corresponding descrambler of the described first true descrambling channel
It disturbs, and preserves the program data after descrambling, specifically include：
The program data received is carried out according to the described first corresponding descrambler of true descrambling channel and the descrambling information
Descrambling, and preserve the program data after descrambling.
6. program as claimed in claim 5 descrambles method for recording, which is characterized in that described in current descrambler useful number
It is in the program to be recorded by the corresponding descrambler of the descrambler useful number during less than the descrambler demand number
Priority section is established after the first true descrambling channel, and the program descrambling method for recording further includes：
The first virtual descrambling channel is established for the rest part in the program to be recorded；
Correspondingly, described after the business cipher key that default storage region is sent is detected, the program descrambling method for recording is also
Including：
When detecting the business cipher key that the default storage region is sent to the described first virtual descrambling channel, to the business
Key is intercepted, and is returned to the default storage region and received success flag.
7. the program descrambling method for recording as described in any one of claim 1-6, which is characterized in that described to judge the recording
Ask whether corresponding program to be recorded is the programme televised live, specifically include：
The PID of program to be recorded described in extraction from the recording request, and the PID of the programme televised live is obtained, it is treated described
The PID for recording the PID and the programme televised live of program is compared, and judging that the recording request is corresponding according to comparison result treats
Record whether program is the programme televised live.
8. program as claimed in claim 7 descrambles method for recording, which is characterized in that described to judge the record according to comparison result
System is asked after whether corresponding program to be recorded be the programme televised live, and the program descrambles method for recording and further includes：
When judging result is described when it is the programme televised live to record program, obtain the programme televised live second really descrambles
Channel carries out descrambling recording by the described second true descrambling channel to the program to be recorded.
9. a kind of set-top box, which is characterized in that the set-top box includes：It memory, processor and is stored on the memory
And the program descrambling that can be run on the processor records program, the program descrambling is recorded program and is performed by the processor
The step of programs of the Shi Shixian as described in claim 1 to 8 descrambles method for recording.
10. a kind of storage medium, which is characterized in that program descrambling is stored on the storage medium and records program, the program
Descrambling records the step of program descrambling method for recording realized when program is executed by processor as described in claim 1 to 8.
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| CN201711438874.5A CN108156513B (en) | 2017-12-26 | 2017-12-26 | Program descrambling and recording method, set top box and storage medium |
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| CN114449349A (en) * | 2020-10-30 | 2022-05-06 | 深圳Tcl新技术有限公司 | Program recording method, device, equipment and computer readable storage medium |
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| CN107343212A (en) * | 2017-07-19 | 2017-11-10 | 青岛海信电器股份有限公司 | A kind of de-scrambling method of DTV, DTV and CAM cards |
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| CN201450545U (en) * | 2008-12-16 | 2010-05-05 | 深圳市同洲电子股份有限公司 | Digital television receiving terminal and time division demultiplexing/descrambling device |
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| CN108156513B (en) | 2020-04-24 |
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