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CN107682737A - Broadcast TV program acquisition methods and television set - Google Patents

Broadcast TV program acquisition methods and television set Download PDF

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Publication number
CN107682737A
CN107682737A CN201710966823.3A CN201710966823A CN107682737A CN 107682737 A CN107682737 A CN 107682737A CN 201710966823 A CN201710966823 A CN 201710966823A CN 107682737 A CN107682737 A CN 107682737A
Authority
CN
China
Prior art keywords
target channel
data
relevant information
instruction
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710966823.3A
Other languages
Chinese (zh)
Inventor
武兵
隋承浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Hisense Electronics Co Ltd
Original Assignee
Qingdao Hisense Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Hisense Electronics Co Ltd filed Critical Qingdao Hisense Electronics Co Ltd
Priority to CN201710966823.3A priority Critical patent/CN107682737A/en
Publication of CN107682737A publication Critical patent/CN107682737A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/438Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383Accessing a communication channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/418External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4181External card to be used in combination with the client device, e.g. for conditional access for conditional access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/431Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/435Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/438Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383Accessing a communication channel
    • H04N21/4384Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The embodiment of the present invention provides a kind of broadcast TV program acquisition methods and television set.This method includes:Obtain the relevant information of target channel, obtained and instructed based on LSC protocol generations, wherein, obtaining instruction includes the relevant information of target channel, instruction will be obtained and be sent to the webserver, and receive the data of first I frame of the target channel that the webserver is sent according to the relevant information for obtaining the target channel in instructing, according to the picture of the data display target channel of first I frame, realize when obtaining the data of target channel, data stream need not be decoded, the first I frame display picture directly sent according to the webserver, improve the acquisition speed of target channel data, so as to, improve Consumer's Experience.

Description

Broadcast TV program acquisition methods and television set
Technical field
The present invention relates to the communication technology, more particularly to a kind of broadcast TV program acquisition methods and television set.
Background technology
With the continuous development of the communication technology, the image quality and sound quality more and more higher of broadcast TV program.Draw The raising of face quality and sound quality means that the data rheology of broadcast TV program is big, and this causes television set receiving data After stream, the time of decoding data stream is elongated.Meanwhile in order to ensure the safety of the broadcast TV program of high quality, it is more and more Broadcast TV program using encryption by the way of transmit TV programme, be specially:The processor of television set receives operator's encryption Data flow afterwards, the data flow after operator is encrypted pass to the Conditional Access Module set in a television set (Conditional Access Module, CAM) blocks, CAM card ciphertext data streams, and the data flow after decryption is carried out again Encryption, is sent to the processor of television set, and the data flow of CAM card encryptions is passed through in the processor decryption of television set.
At present, user is when watching current channel, switch to some target channel if desired or need preview some During the picture of target channel, switching command or instruction for previewing are triggered.Television set is receiving switching command or instruction for previewing When, the information required for target channel distribution is obtained, for example, the information such as frequency, modulation system, symbol rate, according to the information Locked frequency point;Afterwards, Program Association Table (Program Association Table, PAT) is obtained from data flow, further according to PAT obtains Program Map Table (Program Map Table, PMT) from data flow, because containing PMT rope in PAT Draw, therefore, PMT can be obtained from data flow according to PAT;Judge whether target channel is encryption according to PMT analysis result Channel, if encoded channel, and by the CAM cards support in television set, then data flow is imported CAM by the processor of television set Card, PMT is sent to CAM cards, to notify CAM cards to play which channel, after CAM cards encrypt the data flow after decryption again Television processor is passed to, television processor ciphertext data stream, completes the decoding of target channel data flow.Television set is complete Into after the decoding of target channel data flow, the picture of target channel is played.
But in said process, during user's switching channels or preview television image, display target channel Process is realized cumbersome so that broadcast TV program acquisition process takes a longer time, and causes Consumer's Experience poor.
The content of the invention
To solve problems of the prior art, the present invention provides a kind of broadcast TV program acquisition methods and TV Machine.
In a first aspect, the embodiment of the present invention provides a kind of broadcast TV program acquisition methods, including:
Obtain the relevant information of target channel;
Obtained and instructed based on LSC protocol generations;Wherein, described obtain instructs the related letter for including the target channel Breath;
The acquisition instruction is sent to the webserver, and receives the webserver and is obtained according to described in instruction Target channel relevant information send the target channel first I frame data;
The picture of the target channel is shown according to the data of first I frame.
It is described that the acquisition instruction is sent to the webserver in method as implied above, including:
The acquisition instruction is sent to Conditional Access Module CAM cards, so that the CAM cards are obtained described in instruction The relevant information of target channel is sent to the webserver, and receives the webserver according to the target channel The data of first I frame of the target channel that relevant information is sent;
Correspondingly, it is described to receive the webserver according to the relevant information hair for obtaining the target channel in instruction The data of first I frame of the target channel sent, including:
Receive the instruction of the response based on the LSC protocol generations that the CAM cards are sent;Wherein, in the response instruction The data of first I frame including the target channel.
In method as implied above, the acquisition instruction also includes:Indicate that obtain the data of first I frame first indicates Information.
In method as implied above, the relevant information of the target channel is two types;
Wherein, the relevant information of the target channel of the first type includes:The original network identification of the target channel ONID, transport stream identification TSID and service identifiers SID;
The relevant information of the target channel of second of type includes:The SID of the target channel.
In method as implied above, the acquisition instruction also includes:Indicate that obtain the data of first I frame second indicates Information, and, indicate the 3rd configured information of the type of the relevant information of the target channel;
Correspondingly, it is related corresponding to the type that the relevant information of the target channel is to the 3rd configured information indicates Information.
In method as implied above, before the relevant information of target channel is obtained, methods described also includes:
When detecting the switching command that switches to the target channel, or, detect the pre- of target channel described in preview Look at instruction when, it is determined that perform obtain target channel relevant information operation;
Correspondingly, it is described according to first I frame when detecting the switching command for switching to the target channel Data show the picture of the target channel, including:
According to the data of first I frame, the picture of the target channel is displayed in full screen;
When detecting the instruction for previewing of target channel described in preview, the data according to first I frame are shown The picture of the target channel, including:
According to the data of first I frame, the picture of the target channel is shown in part viewing area.
Second aspect, the embodiment of the present invention provide a kind of television set, including:
Acquisition module, for obtaining the relevant information of target channel;
Generation module, instructed for being obtained based on LSC protocol generations;Wherein, the acquisition instruction includes the target The relevant information of channel;
Sending module, for the acquisition instruction to be sent into the webserver;
Receiving module, for receiving the webserver according to the relevant information for obtaining the target channel in instruction The data of first I frame of the target channel sent;
Display module, for showing the picture of the target channel according to the data of first I frame.
In television set as implied above, the sending module is specifically used for:
The acquisition instruction is sent to Conditional Access Module CAM cards, so that the CAM cards are obtained described in instruction The relevant information of target channel is sent to the webserver, and receives the webserver according to the target channel The data of first I frame of the target channel that relevant information is sent;
Correspondingly, the receiving module is specifically used for:
Receive the instruction of the response based on the LSC protocol generations that the CAM cards are sent;Wherein, in the response instruction The data of first I frame including the target channel.
In television set as implied above, the acquisition instruction also includes:Indicate that obtain the data of first I frame first refers to Show information.
In television set as implied above, the relevant information of the target channel is two types;
Wherein, the relevant information of the target channel of the first type includes:The original network identification of the target channel ONID, transport stream identification TSID and service identifiers SID;
The relevant information of the target channel of second of type includes:The SID of the target channel.
In television set as implied above, the acquisition instruction also includes:Indicate that obtain the data of first I frame second refers to Show information, and, indicate the 3rd configured information of the type of the relevant information of the target channel;
Correspondingly, it is related corresponding to the type that the relevant information of the target channel is to the 3rd configured information indicates Information.
In television set as implied above, the television set also includes:
Determining module, the switching command for switching to the target channel is detected for working as, or, detect described in preview During the instruction for previewing of target channel, it is determined that performing the operation for the relevant information for obtaining target channel;
Correspondingly, when the determining module detects the switching command for switching to the target channel, the display mould Block is specifically used for:
According to the data of first I frame, the picture of the target channel is displayed in full screen;
When the determining module detects the instruction for previewing of target channel described in preview, the display module is specifically used In:
According to the data of first I frame, the picture of the target channel is shown in part viewing area.
Broadcast TV program acquisition methods and television set provided in an embodiment of the present invention, by the correlation for obtaining target channel Information, obtained and instructed based on LSC protocol generations, wherein, obtaining instruction includes the relevant information of target channel, is instructed obtaining The webserver is sent to, and receives the target that the webserver is sent according to the relevant information for obtaining the target channel in instructing The data of first I frame of channel, according to the picture of the data display target channel of first I frame, realize and obtaining target During the data of channel, it is not necessary to data stream is decoded, the first I frame directly sent according to the webserver shows picture Face, the acquisition speed of target channel data is improved, so as to improve Consumer's Experience.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of broadcast TV program acquisition methods embodiment one provided in an embodiment of the present invention;
Fig. 2A is a kind of television interfaces display figure of handoff procedure in embodiment illustrated in fig. 1;
Fig. 2 B are a kind of television interfaces display figure of previews in embodiment illustrated in fig. 1;
Fig. 3 is the signaling interaction diagram of broadcast TV program acquisition methods embodiment two provided in an embodiment of the present invention;
Fig. 4 is the schematic diagram for the broadcast TV program acquisition methods application scenarios that embodiment illustrated in fig. 3 provides;
Fig. 5 is the structural representation of television set embodiment provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
Term " first ", " second ", " the 3rd " in description and claims of this specification and above-mentioned accompanying drawing and " The (if present)s such as four " are for distinguishing similar object, without for describing specific order or precedence.It should manage The data that solution so uses can exchange in the appropriate case, so as to embodiments of the invention described herein can with except Here the order beyond those for illustrating or describing is implemented.In addition, term " comprising " and " having " and their any deformation, Be intended to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or setting Standby those steps or the unit for being not necessarily limited to clearly list, but may include not list clearly or for these mistakes The intrinsic other steps of journey, method, product or equipment or unit.
Broadcast TV program acquisition methods provided in an embodiment of the present invention can be by the television set with network communications capability Perform.In some scenes, for example, it is necessary to carry out channel switch during user watches TV programme on a television set, with Watch the TV programme that different channel plays, or, it is necessary to carry out band prebrowsing, cut with determining the need for carrying out channel Change.During channel switch or band prebrowsing, it is required to get the picture of target channel within a short period of time, exists at present User carry out channel switch or band prebrowsing etc. need obtain target channel pictured scene in, television set display picture when Between it is longer, cause Consumer's Experience poor.The embodiment of the present invention provides a kind of broadcast TV program acquisition methods, it is intended to solves this and asks Topic.
Broadcast TV program acquisition methods provided in an embodiment of the present invention, by obtaining the relevant information of target channel, base Obtain and instruct in LSC (Low Speed Communication, LSC) protocol generation, wherein, obtaining instruction includes target frequency The relevant information in road, instruction will be obtained and be sent to the webserver, and receive the webserver according to the target obtained in instructing The data of first I frame of the target channel that the relevant information of channel is sent, according to the data display target channel of first I frame Picture, realize obtain target channel data when, it is not necessary to data stream is decoded, directly according to the webserver The first I frame display picture sent, the acquisition speed of target channel data is improved, so as to improve Consumer's Experience.
Technical scheme is described in detail with specific embodiment below.These specific implementations below Example can be combined with each other, and may be repeated no more for same or analogous concept or process in some embodiments.
Fig. 1 is the schematic flow sheet of broadcast TV program acquisition methods embodiment one provided in an embodiment of the present invention.Such as Fig. 1 Shown, broadcast TV program acquisition methods provided in an embodiment of the present invention comprise the following steps:
S101:Obtain the relevant information of target channel.
Specifically, television set is after tuning is completed in start, can obtain the relevant informations of all channels, and by these channels Relevant information stored.Exemplarily, the storage of television set can be stored in the form of database or configuration file etc. In device.The mode that television set obtains the relevant information of target channel can be that the related letter of the target channel is read from memory Breath.
In a kind of implementation, television set can be when detecting the switching command for switching to target channel, or, when When detecting the instruction for previewing of preview target channel, it is determined that performing the operation for the relevant information for obtaining target channel.It is another real In existing mode, television set can be with the relevant information of default frequency acquisition target channel, periodically to perform implementation of the present invention The broadcast TV program acquisition methods that example provides, improve the fluency that the picture of target channel is shown.Here default frequency Can be television set manufacturer set or user set.
User can by remote control, television set touch-screen or be installed on the application program of terminal device (Application, APP) triggers switching command or instruction for previewing.
In a kind of implementation, user triggers switching command by remote control, or, instruction for previewing.When user wants to switch During channel, button corresponding to channel switch on remote control can be pressed, for example, it may be channel "+" key, channel "-" key or Button corresponding to target channel;When user thinks preview channel, button corresponding to band prebrowsing on remote control can be pressed.Work as electricity When receiving switching command or the instruction for previewing that user is triggered by remote control depending on machine, determine that user needs to obtain target channel Data, and obtain the relevant information of target channel.
In another implementation, user triggers switching command or instruction for previewing by the touch-screen of television set.When with When switching channels are thought at family, touch area corresponding to channel switch can be clicked on;When user thinks preview channel, channel can be clicked on Touch area corresponding to preview.When television set receives switching command or the instruction for previewing that user is triggered by touch-screen, Determine that user needs to obtain the data of target channel, and obtain the relevant information of target channel.
In another implementation, user triggers switching command or instruction for previewing by being installed on the APP of terminal device. When user thinks switching channels, position corresponding to channel switch can be clicked in APP interface, or, input target channel Title;When user thinks preview channel, position corresponding to band prebrowsing can be clicked in APP interface.When television set connects When receiving switching command or the instruction for previewing that user is triggered by touch-screen, determine that user needs to obtain the number of target channel According to, and obtain the relevant information of target channel.
The relevant information of target channel in the embodiment of the present invention refers in a network can be with the letter of the unique mark channel Breath.In the embodiment of the present invention, the relevant information of target channel can have following two implementations:
In the first implementation, the relevant information of target channel can be the original network identification of target channel (Original Network Identification, ONID), transport stream identification (Transport Stream Identification, TSID) and service identifiers (Service Identification, SID), i.e., described by three-level Mode determines a channel.Wherein, what ONID was represented is the mark of network belonging to the channel, for different operators, ONID is different;TSID represents the mark of physics frequency, and multiple channels can carry on a physics frequency;SID represent be Specific channel in physics frequency.
In second of implementation, the relevant information of target channel is two types.The target channel of first type Relevant information includes:ONID, TSID and SID of target channel;The relevant information of the target channel of second of type includes:Target The SID of channel.Wherein, the building form of the relevant information of the target channel of the first type and target in the first implementation The building form of the relevant information of channel is consistent.When the ONID and TSID of target channel are fixed mark, target channel The content that relevant information includes is the content shown in second of type in this implementation.
S102:Obtained and instructed based on LSC protocol generations.
Wherein, obtaining instruction includes the relevant information of target channel.
Specifically, after the relevant information of target channel is got, it is necessary to send relevant information to the webserver with Obtain the data of first I frame of target channel.
In the embodiment of the present invention, existing LSC protocol generations can be based on and obtain instruction, and the correlation of target channel is believed Breath is carried in instruction is obtained.LSC agreements are that common interface adds the 14.1st in (Common Interface Plus, CI+) agreement The content of chapter.Table 1 is the signal table of the mark of the request command in LSC agreements.As shown in table 1, comms_command_id tables Show the mark of request command.Wherein, Connect_on_Channel represents to access the order of channel, and it is identified as 01; Disconnect_on_Channel represents the order of disconnection channel, and it is identified as " 02 ";Set_Params represents arrange parameter Order, it is identified as " 03 ";Enquire_Status represents the order of acquisition state, and it is identified as " 04 ";Get_Next_ Buffer represents the order of the next buffering of acquisition, and it is identified as " 05 ";Get_Frame_I represents to obtain the number of first I frame According to order, it is identified as " 06 ".Wherein, Get_Frame_I is the order increased newly in the embodiment of the present invention.
The signal table of the mark of request command in the LSC agreements of table 1
comms_command_id id value
Connect_on_Channel 01
Disconnect_on_Channel 02
Set_Params 03
Enquire_Status 04
Get_Next_Buffer 05
Get_Frame_I 06
reserved other values
For two kinds of different implementations of the relevant information of target channel, obtaining instruction has following two realization sides Formula:
For the first implementation of the relevant information of target channel, the first implementation for obtaining instruction is to obtain Instruction fetch includes the first configured information of data and the relevant information of target channel that instruction obtains first I frame.Wherein, first Configured information refers to the mark of Get_Frame_I orders.Table 2 is the data structure that instruction is obtained in the first implementation. As shown in table 2, when the first character section for obtaining instruction represents comms_command_id.When 8 comms_command_id tables When the decimal number shown is 06, second byte of instruction and the ONID of the 3rd byte representation target channel are obtained, acquisition refers to 4th byte of order and the TSID of the 5th byte representation target channel, obtain the 6th byte and the 7th byte of instruction Represent the SID of target channel.According to this data structure, can construct including the first configured information letter related to target channel The acquisition instruction of breath.
The data structure of instruction is obtained in the first implementation of table 2
For second of implementation of the relevant information of target channel, second of implementation for obtaining instruction is to obtain Instruction fetch includes the second configured information that instruction obtains the data of first I frame, indicates the type of the relevant information of target channel The 3rd configured information, and, the relevant information of target channel.Wherein, the second configured information refers to Get_Frame_I orders Mark.In the implementation, the type of the relevant information based on two kinds of target channels, construct the related of target channel and believe The configured information of the type of breath.Table 3 is the signal table of the configured information of the type of the relevant information of target channel.Exemplarily, When the type of the relevant information of target channel is identified as 0x10, the type for representing the relevant information of target channel is in S101, Second of type in second of implementation of the relevant information of target channel;When the type of the relevant information of target channel 0x11 is identified as, the type for representing the relevant information of target channel is in S101, and second of the relevant information of target channel is real The first type in existing mode.Then correspondingly, the 3rd configured information instruction be relevant information type mark.Table 4 is The data structure of instruction is obtained in second of implementation.
The signal table of the configured information of the type of the relevant information of the target channel of table 3
Program_Number 0x10 program number
Identifier_Param 0x11 ONID/TSID/SID
reserved Other values
The data structure of instruction is obtained in second of the implementation of table 4
Service_tag in table 4 represents the type of the relevant information of target channel.As shown in table 4, when acquisition instruction First character section represents comms_command_id.When the decimal number that 8 comms_command_id are represented is 06, obtain The type of the relevant information of second byte representation target channel of instruction.When second byte is 0x10, represent that acquisition refers to 3rd byte of order and the SID of the 4th byte representation target channel;When second byte is 0x11, represent to obtain instruction The 3rd byte and the 4th byte representation target channel ONID, obtain the 5th byte and the 6th table of bytes of instruction Show the TSID of target channel, obtain the 7th byte of instruction and the SID of the 8th byte representation target channel.According to this number According to structure, the acquisition instruction of the relevant information including the second configured information, the 3rd configured information and target channel can be constructed.
S103:Instruction will be obtained and be sent to the webserver, and receive the webserver according to the target obtained in instructing The data of first I frame of the target channel that the relevant information of channel is sent.
Specifically, in a kind of implementation, television set can will directly obtain instruction and be sent to the webserver, now, Pass through LSC protocol communications between the webserver and television set.In another implementation, television set will first obtain instruction and send CAM cards are given, then the relevant information of target channel is sent to the webserver by CAM cards.Now, between television set and CAM cards Pass through LSC protocol communications.The embodiment of the present invention is not limited to the communication protocol between CAM cards and the webserver.
Instruction will be directly obtained in television set to be sent in the scene of television set, the company between television set and the webserver Connect and establish or established when detecting the instruction for the data for obtaining target channel in advance.
If the connection between television set and the webserver is to detect the finger for the data for needing to obtain target channel Establish, then, before S103, connected to realize to establish with the webserver, television set needs to obtain connection first when making Link information needed for the webserver, afterwards, established and connected according to the link information and the webserver.
The mode of television set acquisition link information has following several:
First way:Television set obtains link information from the configuration file prestored.Configuration file includes this Link information.This implementation is to shift to an earlier date preset link information in a television set.The second way:Television set receives network clothes The configuration file of business device broadcast, obtains link information from configuration file.This implementation is the process in television set work In, in the form of broadcast, send configuration file, television set therefrom obtains link information after configuration file is received.
The data of the real-time frame of each channel are stored with the embodiment of the present invention, in the webserver.The present invention is implemented In example, television set can be established with the webserver by cable network or wireless network and connected.
In the scene of television set and webserver direct interaction, the webserver is receiving obtaining for television set transmission After instruction fetch, the data of first I frame of target channel are determined according to the relevant information of target channel, and by the of target channel The data of one I frame are sent to television set.The mode or referred to based on the construction response of LSC agreements that the webserver is sent Order, and the data of first I frame of target channel are carried in response instruction.
In the scene that television set is interacted by CAM cards with the webserver, the webserver is receiving the transmission of CAM cards Target channel relevant information after, the data of first I frame of target channel are determined according to the relevant information of target channel, and The data of first I frame of target channel are sent to CAM cards.CAM cards again send the data of first I frame of target channel To television set.
Alternatively, more machines can be set in the webserver, store the data of the real-time frame of all channels.Network Server is after the relevant information of target channel is received, according to the relevant information, from being stored with mesh corresponding to the relevant information In the machine for marking the data of channel, the data of current first I frame are obtained.I frames in the embodiment of the present invention are properly termed as picture again Face frame or key frame, it is different from reference frame, can be used for broadcasting pictures.
In a kind of implementation, the webserver only sends the data of first I frame of target channel to television set.
In another implementation, number of the television set to the I frames of web server requests can also be included by obtaining in instruction Amount.Then, the webserver can obtain TV after the quantity of I frames of the relevant information of target channel and request is received The data of the I frames of quantity indicated by machine.In order to further save switching time, the webserver is getting first I frame After data, television set is sent the data to immediately.The data of remaining I frame, can be sent to first I frame data it Once all send, can also send by several times afterwards.
In another implementation, television set and the webserver can arrange the quantity of the I frames of acquiescence in advance.Then, net Network server can obtain the data of the I frames of default amount after the relevant information of target channel is received.
S104:According to the picture of the data display target channel of first I frame.
Specifically, television set is after the data of first I frame of webserver transmission are received, according to first I The data of frame are shown on a display screen.Now, television set need not decode, it is only necessary to which parsing the data of the I frames can show Show picture.The picture is the picture that target channel is currently played.It is understood that in order to not influence the coherent of sound Property, do not include audio-frequency information in the data of first I frame.
It should be noted that S101 is concurrently carried out with the mode that normal channel plays in following steps:1st, television set obtains The information required for target channel distribution is taken, for example, the information such as frequency, modulation system, symbol rate;2nd, according to determining in 1 The information such as frequency, locked frequency point;3rd, PAT is obtained from code stream;4th, after obtaining PAT, PMT is obtained from code stream further according to PAT;5、 Judge whether actual program is ciphered program according to PMT analysis result;6th, if ciphered program, and by the CAM in television set If card is supported, then code stream is imported CAM cards by television processor;7th, PMT is sent to CAM cards, to notify CAM cards to play Which program;8th, CAM cards pass to television processor after the code stream after decryption is encrypted again;9th, television processor is decrypted TV programme;10th, program decoding is completed.Television set is after the data of first I frame are shown, if it is from the webserver The data of an I frame are requested, then television set continues the target channel that presentation determines in the way of normal channel plays Picture and sound.
It should be noted that Program refers to " channel " involved in the embodiment of the present invention, it is translated into " section Mesh ", in above process, " channel " and " program " represent identical implication.
For the instruction of the data of different acquisition target channels, the display side during picture of television set display target channel Formula is different.When detecting the switching command for switching to target channel, according to the data of first I frame, full screen display target frequency The picture in road;When the instruction for previewing for detecting preview target channel, according to the data of first I frame, show in part viewing area Show the picture of target channel.
Fig. 2A is a kind of television interfaces display figure of handoff procedure in embodiment illustrated in fig. 1.As shown in Figure 2 A, user is seeing Channel 31 is seen, after the switching command of target channel 33 is switched to by the triggering of remote control 32, television set 30 performs S101- S104, afterwards, television set 30 start the picture that played in full screen determines according to the data of first I frame of target channel 33.This mistake Cheng Zhong, the picture that the button of remote control 32 commences play out to television set 30 target channel 33 is pressed from user, process is very short, frequency Road switch speed is very fast.
Fig. 2 B are a kind of television interfaces display figure of previews in embodiment illustrated in fig. 1.As shown in Figure 2 B, user is seeing Channel 31 is seen, after the instruction of preview target channel 33 is triggered by remote control 32, television set 30 performs S101-S104, afterwards, Television set 30 shows the picture determined according to the data of first I frame of target channel 33 in lower zone.
Broadcast TV program acquisition methods provided in an embodiment of the present invention, by obtaining the relevant information of target channel, base Obtain and instruct in LSC protocol generations, wherein, obtaining instruction includes the relevant information of target channel, will obtain instruction and is sent to The webserver, and receive the target channel that the webserver is sent according to the relevant information for obtaining the target channel in instructing The data of first I frame, according to the picture of the data display target channel of first I frame, realize and obtaining target channel During data, it is not necessary to data stream is decoded, the first I frame display picture directly sent according to the webserver, improved The acquisition speed of target channel data, so as to improve Consumer's Experience.
Fig. 3 is the signaling interaction diagram of broadcast TV program acquisition methods embodiment two provided in an embodiment of the present invention.Fig. 4 is The schematic diagram for the broadcast TV program acquisition methods application scenarios that embodiment illustrated in fig. 3 provides.As shown in figure 4, of the invention real In the application scenarios for applying example, there is two kinds of server in the server side of operator:Data flow broadcasting server 11 and net Network server 12.Both servers are connected with each other.In television channel playing process, television set 13 receives data streaming clothes The data flow for the channel that the user that business device 11 is broadcasted is watching, to being played after the data stream.Needing to obtain target frequency During the data in road, for example, switching channels or when browsing channel, television set 13 can communicate with the webserver 12, obtain mesh The data of first I frame of channel are marked, and are played out.At the same time, television set 13 can also receive data flow broadcast service The data flow for the target channel that device 11 is broadcasted.
The embodiment of the present invention is made one on the basis of embodiment illustrated in fig. 1, to S103 and described in detail.As shown in figure 3, this hair The broadcast TV program acquisition methods that bright embodiment provides comprise the following steps:
S301:Obtain the relevant information of target channel.
S301 is similar with S101 implementation process and technical principle, and here is omitted.
S302:Obtained and instructed based on LSC protocol generations.
Wherein, obtaining instruction includes the relevant information of target channel.
S302 is similar with S102 implementation process and technical principle, and here is omitted.
S303:Instruction will be obtained and be sent to CAM cards.
Specifically, communicated between television set and CAM cards based on LSC agreements.Then television set is constructed based on LSC agreements After obtaining instruction, it can will directly obtain instruction and be sent to CAM cards.
S304:The relevant information of the target channel obtained in instructing is sent to the webserver by CAM cards.
Specifically, CAM is stuck in receive acquisition instruction after, the related letter of target channel can be gone out based on LSC protocol analysis Breath, afterwards, the webserver is sent to by the relevant information of the target channel.Communication protocols between CAM cards and the webserver View can be existing any communication protocol.
S305:First I of the target channel that the webserver is sent according to the relevant information of target channel is received in CAM clampings The data of frame.
Specifically, the webserver can determine first I frame of target channel according to the relevant information of target channel Data, the determination process is similar with the process described in S103 in embodiment illustrated in fig. 1, and here is omitted.The webserver After the data of first I frame of target channel are determined, CAM cards are sent it to.
S306:Receive the instruction of the response based on LSC protocol generations that CAM cards are sent.
Wherein, response instruction includes the data of first I frame of target channel.
Specifically, can be with after CAM is stuck in the data of first I frame of the target channel for receiving webserver transmission Responded and instructed based on LSC protocol generations, and the data of first I frame of target channel are carried in response instructs.Table 5 is The schematic diagram of the mark of response command in LSC agreements.As shown in table 5, comms_reply_id represents the mark of response command. Wherein, Connect_Ack represents to access the response command of channel, and it is identified as " 01 ";Disconnect_Ack represents to disconnect frequency The response command in road, it is identified as " 02 ";Set_Params_Ack represents the response command of arrange parameter, and it is identified as " 03 "; Status_Reply represents the response command of acquisition state, and it is identified as " 04 ";Get_Next_Buffer_Ack is represented under obtaining The response command of one buffering, it is identified as " 05 ";Send_Ack represents the order of transmission response, and it is identified as " 06 ";Get_ Frame_I_Ack represents the order of the data of first I frame of transmission, and it is identified as " 07 ".Wherein, Get_Frame_I_Ack is The order increased newly in the embodiment of the present invention.
The data structure that table 6 instructs for response.As shown in table 6, first three byte representation comms_ of instruction is responded Reply_tag, i.e. returned data mark.4th byte representation comms_reply_id.When 8 comms_reply_id tables When the decimal number shown is 07, the length of the data of eight byte representations returns of the 5th byte-the of instruction is responded.Response refers to The data that 9th byte-identifier of order returns.Wherein, the length of the data of return is represented with 32, can at most represent 4G's Data content.
The schematic diagram of the mark of response command in the LSC agreements of table 5
comms_reply_id id value
Connect_Ack 01
Disconnect_Ack 02
Set_Params_Ack 03
Status_Reply 04
Get_Next_Buffer_Ack 05
Send_Ack 06
Get_Frame_I_Ack 07
reserved other values
The data structure of the response instruction of table 6
S307:According to the picture of the data display target channel of first I frame.
S307 is similar with S104 implementation process and technical principle, and here is omitted.
It should be noted that the mode that the normal channel described in embodiment illustrated in fig. 1 plays concurrently is entered with S301 OK.Because the mode that in the embodiment of the present invention, S301 plays with normal channel is concurrently carried out, then in the mistake of switching or preview Cheng Zhong, television set can obtain first I frame number of target channel in the way of S301-S303 and S306 from the webserver According to shifting to an earlier date the picture of display target channel according to the data of first I frame.At the same time, television set can also be according to normal The mode that channel plays obtains the code stream of target channel from data flow broadcasting server.Mesh is being shown according to first I frame After the picture for marking channel, if after an I frame data are only requested from the webserver, if channel switch, TV Chance continues the code stream that target channel is decoded in the way of normal channel plays, the picture and sound that play target channel. On the basis of the picture for ensureing target channel is normally shown, the picture of target channel can be presented in advance in channel switch, Shorten the time of channel switch.For a user, picture that target channel is watched in channel switch procedure is shortened Time, so as to improve Consumer's Experience.
Broadcast TV program acquisition methods provided in an embodiment of the present invention, CAM cards, CAM are sent to by the way that instruction will be obtained The relevant information of the target channel obtained in instructing is sent to the webserver by card, and CAM clampings receive the webserver according to mesh Mark the data of first I frame of the target channel that the relevant information of channel is sent, television set receive the transmission of CAM cards based on LSC The response instruction of protocol generation, response instruction include the data of first I frame of target channel, realize television set and pass through CAM cards obtain the data of first I frame of target channel from the webserver, due to the communication protocols between television set and CAM cards View is fixed, when the webserver updates, it is only necessary to update the hardware or software of CAM cards so that CAM cards can continue with The webserver after renewal is communicated, and television set and need not carry out any renewal, after also continuing through renewal CAM cards obtain the data of first I frame of target channel from the webserver after renewal, so as to reduce user's use The cost of television set, further increases Consumer's Experience.
Fig. 5 is the structural representation of television set embodiment provided in an embodiment of the present invention.As shown in figure 5, the present invention is implemented The television set that example provides includes following module:Acquisition module 51, generation module 52, sending module 53, receiving module 54 and aobvious Show module 55.
Acquisition module 51, for obtaining the relevant information of target channel.
Generation module 52, instructed for being obtained based on LSC protocol generations.
Wherein, obtaining instruction includes the relevant information of target channel.
Sending module 53, the webserver is sent to for instruction will to be obtained.
Receiving module 54, for receiving the webserver according to the relevant information transmission for obtaining the target channel in instructing The data of first I frame of target channel.
Alternatively, sending module 53 is specifically used for:Instruction will be obtained and be sent to CAM cards, so that CAM cards will be obtained in instructing The relevant information of target channel be sent to the webserver.Correspondingly, receiving module 54 is specifically used for:Receive the webserver The data of first I frame of the target channel sent according to the relevant information of target channel.The implementation realizes television set The data of first I frame of target channel are obtained from the webserver by CAM cards, due to logical between television set and CAM cards Believe that agreement is fixed, when the webserver updates, it is only necessary to the hardware or software of CAM cards are updated, so that CAM cards can be after The continuous webserver with after updating is communicated, and television set and need not carry out any renewal, can also continue through renewal CAM cards afterwards obtain the data of first I frame of target channel from the webserver after renewal, so as to reduce user Use the cost of television set.
In a kind of implementation, obtaining instruction also includes:Indicate the first configured information of the data of first I frame of acquisition.
In another implementation, the relevant information of target channel is two types;The target channel of first type Relevant information includes:ONID, TSID and SID of target channel;The relevant information of the target channel of second of type includes:Target The SID of channel.Based on the implementation, obtaining instruction also includes:Indicate that the second instruction for obtaining the data of first I frame is believed Breath, and, indicate the 3rd configured information of the type of the relevant information of target channel.Correspondingly, the relevant information of target channel For the corresponding relevant information of the type that is indicated with the 3rd configured information.
Display module 55, the picture for the data display target channel according to first I frame.
Alternatively, in the embodiment of the present invention, television set also includes:Determining module, target frequency is switched to for that ought detect The switching command in road, or, when detecting the instruction for previewing of preview target channel, it is determined that performing the related letter for obtaining target channel The operation of breath.
In a kind of implementation, when determining module detects the switching command for switching to target channel, display module 55 It is specifically used for:According to the data of first I frame, the picture of target channel is displayed in full screen.
In another implementation, when determining module detects the instruction for previewing of preview target channel, display module 55 It is specifically used for:According to the data of first I frame, in the picture of part viewing area display target channel.
Television set provided in an embodiment of the present invention, by setting acquisition module, for obtaining the relevant information of target channel, Generation module, instructed for being obtained based on LSC protocol generations, wherein, obtaining instruction includes the relevant information of target channel, hair Module is sent, the webserver is sent to for instruction will to be obtained, receiving module, is instructed for receiving the webserver according to acquisition In target channel relevant information send target channel first I frame data, display module, for according to first The picture of the data display target channel of I frames, realize when obtaining the data of target channel, it is not necessary to which data stream is solved Code, the first I frame display picture directly sent according to the webserver, the acquisition speeds of target channel data is improved, from And improve Consumer's Experience.
One of ordinary skill in the art will appreciate that:Realizing all or part of step of above-mentioned each method embodiment can lead to The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey Sequence upon execution, execution the step of including above-mentioned each method embodiment;And foregoing storage medium includes:ROM, RAM, magnetic disc or Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that:Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations;To the greatest extent The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that:Its according to The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered Row equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology The scope of scheme.

Claims (12)

  1. A kind of 1. broadcast TV program acquisition methods, it is characterised in that including:
    Obtain the relevant information of target channel;
    Obtained and instructed based on low-speed communication LSC protocol generations;Wherein, it is described to obtain the correlation for instructing and including the target channel Information;
    The acquisition instruction is sent to the webserver, and receives the webserver according to the mesh obtained in instruction Mark the data of first I frame of the target channel of the relevant information transmission of channel;
    The picture of the target channel is shown according to the data of first I frame.
  2. 2. according to the method for claim 1, it is characterised in that it is described that the acquisition instruction is sent to the webserver, Including:
    By it is described acquisition instruction be sent to Conditional Access Module CAM cards so that the CAM cards by it is described acquisition instruct in target The relevant information of channel is sent to the webserver, and receives correlation of the webserver according to the target channel The data of first I frame of the target channel that information is sent;
    Correspondingly, it is described to receive what the webserver was sent according to the relevant information for obtaining the target channel in instruction The data of first I frame of the target channel, including:
    Receive the instruction of the response based on the LSC protocol generations that the CAM cards are sent;Wherein, the response instruction includes The data of first I frame of the target channel.
  3. 3. method according to claim 1 or 2, it is characterised in that the acquisition instruction also includes:Instruction obtains first First configured information of the data of I frames.
  4. 4. method according to claim 1 or 2, it is characterised in that the relevant information of the target channel is two types;
    Wherein, the relevant information of the target channel of the first type includes:The original network identification ONID of the target channel, pass Defeated traffic identifier TSID and service identifiers SID;
    The relevant information of the target channel of second of type includes:The SID of the target channel.
  5. 5. according to the method for claim 4, it is characterised in that the acquisition instruction also includes:Instruction obtains first I frame Data the second configured information, and, indicate the 3rd configured information of the type of the relevant information of the target channel;
    Correspondingly, related letter corresponding to the type that the relevant information of the target channel is to the 3rd configured information indicates Breath.
  6. 6. method according to claim 1 or 2, it is characterised in that described before the relevant information of target channel is obtained Method also includes:
    When detecting the switching command that switches to the target channel, or, detect that the preview of target channel described in preview refers to When making, it is determined that performing the operation for the relevant information for obtaining target channel;
    Correspondingly, when detecting the switching command for switching to the target channel, the data according to first I frame The picture of the target channel is shown, including:
    According to the data of first I frame, the picture of the target channel is displayed in full screen;
    When detecting the instruction for previewing of target channel described in preview, described in the data according to first I frame are shown The picture of target channel, including:
    According to the data of first I frame, the picture of the target channel is shown in part viewing area.
  7. A kind of 7. television set, it is characterised in that including:
    Acquisition module, for obtaining the relevant information of target channel;
    Generation module, instructed for being obtained based on low-speed communication LSC protocol generations;Wherein, the acquisition instruction includes described The relevant information of target channel;
    Sending module, for the acquisition instruction to be sent into the webserver;
    Receiving module, sent for receiving the webserver according to the relevant information for obtaining the target channel in instruction The target channel first I frame data;
    Display module, for showing the picture of the target channel according to the data of first I frame.
  8. 8. television set according to claim 7, it is characterised in that the sending module is specifically used for:
    By it is described acquisition instruction be sent to Conditional Access Module CAM cards so that the CAM cards by it is described acquisition instruct in target The relevant information of channel is sent to the webserver, and receives correlation of the webserver according to the target channel The data of first I frame of the target channel that information is sent;
    Correspondingly, the receiving module is specifically used for:
    Receive the instruction of the response based on the LSC protocol generations that the CAM cards are sent;Wherein, the response instruction includes The data of first I frame of the target channel.
  9. 9. the television set according to claim 7 or 8, it is characterised in that the acquisition instruction also includes:Instruction obtains first First configured information of the data of individual I frames.
  10. 10. the television set according to claim 7 or 8, it is characterised in that the relevant information of the target channel is two species Type;
    Wherein, the relevant information of the target channel of the first type includes:The original network identification ONID of the target channel, pass Defeated traffic identifier TSID and service identifiers SID;
    The relevant information of the target channel of second of type includes:The SID of the target channel.
  11. 11. television set according to claim 10, it is characterised in that the acquisition instruction also includes:Instruction obtains first Second configured information of the data of individual I frames, and, indicate that the 3rd instruction of the type of the relevant information of the target channel is believed Breath;
    Correspondingly, related letter corresponding to the type that the relevant information of the target channel is to the 3rd configured information indicates Breath.
  12. 12. the television set according to claim 7 or 8, it is characterised in that the television set also includes:
    Determining module, the switching command for switching to the target channel is detected for working as, or, detect target described in preview During the instruction for previewing of channel, it is determined that performing the operation for the relevant information for obtaining target channel;
    Correspondingly, when the determining module detects the switching command for switching to the target channel, the display module tool Body is used for:
    According to the data of first I frame, the picture of the target channel is displayed in full screen;
    When the determining module detects the instruction for previewing of target channel described in preview, the display module is specifically used for:
    According to the data of first I frame, the picture of the target channel is shown in part viewing area.
CN201710966823.3A 2017-10-17 2017-10-17 Broadcast TV program acquisition methods and television set Pending CN107682737A (en)

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Application publication date: 20180209