CN102724587A - Channel switching control method and device for digital televisions - Google Patents
Channel switching control method and device for digital televisions Download PDFInfo
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Abstract
The invention discloses a channel switching control method for digital televisions, and also discloses a corresponding channel switching control device. According to the invention, a television terminal monitors and receives a switch control descriptor from a front-end server; the television terminal carries out analysis on the received switch control descriptor so as to obtain control information for channel switching; and the television terminal carries out the channel switching according to the control information. Through the way, the applications such as emergency broadcasting, emergency notification and forced advertising can be realized conveniently, an additional cost of a front end can be avoided, and the integration difficulty of the terminal can be reduced.
Description
Technical field
The present invention relates to digital TV field, what particularly relate to a kind of DTV cuts platform control method and device thereof.
Background technology
DTV just is meant that all being to use digital television signal or all signals of this system are propagated to all links of emission, transmission, reception from the studio all is the television genre of propagating through the digital stream that is made up of 0,1 numeric string.Its loss of signal is little, and reception is good.
DTV develops into today; The business form presents diversified development trend; How to let the user that better user experience is arranged, how to let operator commence business, how to let the easier integrated service of manufacturer terminal more easily, become the problem that needs engineers and technicians to study.
DTV mainly comprises front end system and terminal equipment, and front end system is used to obtain digital signal and handles transmission, and terminal equipment mainly is the machine that receives processing signals.Under the current techniques situation, the application of urgent broadcast, emergency information, pressure advertisement etc. and so on all defines detailed data structure specification, disposes such when professional, and front end need be provided with that proprietary server system is used for disposing should business, needs extra input; The terminal needs integrated complicated service running environment, is used for professional parsing and receives, and integrated difficulty is big.
Summary of the invention
The technical problem that the present invention mainly solves provides cutting the platform control method and cutting the platform control device of a kind of DTV; Can realize application such as urgent broadcast, emergency information, pressure advertisement easily; Can avoid front end to increase extra cost, reduce the integrated difficulty at terminal simultaneously.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: what a kind of DTV was provided cuts the platform control method, and said method comprises:
The switching controls descriptor from front-end server is monitored and received to television terminal; Said television terminal is resolved the switching controls descriptor that receives, and obtains being used to cut the control information of platform; Said television terminal carries out program according to control information and switches.
Wherein, When said television terminal is DMB (DVB) terminal; The platform control method of cutting of said DTV is switched according to the broadcast channel agreement, and said the switching according to the broadcast channel agreement comprises: said DVB terminal monitoring and receive BAT bouquet association table (BAT) or network information table (NIT) in said switching controls descriptor; The switching controls descriptor that said DVB end-on is received is resolved, and obtains being used to cut the control information of platform; Said DVB terminal is carried out program according to said control information and is switched: when the switch mode of said control information is broadcast channel, switch to the broadcast channel pattern; Judge whether the pressure sign in the said control information is " 1 ",, then carry out program automatically and switch according to the time point that standby mode indicated in the said control information if said pressure is masked as " 1 "; Otherwise, whether select to carry out program according to said time point prompting user and switch, if, then carry out program and switch, do not switch otherwise do not carry out program.
Wherein, When said television terminal is procotol (IP) terminal; The platform control method of cutting of said DTV is switched according to the broadband channel agreement, and said the switching according to the broadband channel agreement comprises: said IP terminal monitoring and reception are packaged in the said switching controls descriptor in extend markup language (XML) file; Resolve the said switching controls descriptor in the XML file at said IP terminal, obtains being used to cut the control information of platform; Said IP terminal is carried out program according to said control information and switched: according to said control information, said IP terminal is sent media data to said front-end server and is obtained request; Said front-end server sends media data according to solicited message to said IP terminal after receiving the request of obtaining of said media data; Said IP terminal receives said media data and decodes.
Wherein, when said television terminal was the dual analog terminal of DVB and IP, the platform control method of cutting of said DTV comprised: the dual analog terminal monitoring of said DVB and IP also receives the switching controls descriptor from front-end server; The switching controls descriptor that the dual analog end-on of said DVB and IP is received is resolved, and obtains being used to cut the control information of platform; The dual analog terminal of said DVB and IP is carried out program according to said control information and is switched: judge whether the switch mode in the said control information is broadcast channel, if, then switch according to the Radio Broadcasting Agreements passage, otherwise, switch according to the wideband protocol passage;
Wherein, the said switching according to the Radio Broadcasting Agreements passage comprises: said DVB terminal monitoring and receive BAT or NIT in said switching controls descriptor; The switching controls descriptor that said DVB end-on is received is resolved, and obtains being used to cut the control information of platform; Said DVB terminal is carried out program according to said control information and is switched: when the switch mode of said control information is broadcast channel, switch to the broadcast channel pattern; Judge whether the pressure sign in the said control information is " 1 ",, then carry out program automatically and switch according to the time point that standby mode indicated in the said control information if said pressure is masked as " 1 "; Otherwise, whether select to carry out program according to said time point prompting user and switch, if, then carry out program and switch, do not switch otherwise do not carry out program;
Wherein, the said switching according to the wideband protocol passage comprises: said IP terminal monitoring and reception are packaged in the said switching controls descriptor in the XML file; Resolve the said switching controls descriptor in the XML file at said IP terminal, obtains being used to cut the control information of platform; Said IP terminal is carried out program according to said control information and switched: according to said control information, said IP terminal is sent media data to said front-end server and is obtained request; Said front-end server sends media data according to solicited message to said IP terminal after receiving the request of obtaining of said media data; Said IP terminal receives said media data and decodes.
Wherein, said step of carrying out the program switching also comprises afterwards: the information after switching according to the control of the descriptor in said switching descriptor program shows.
For solving the problems of the technologies described above, another technical scheme that the present invention adopts is: what a kind of DTV was provided cuts the platform control device, comprising:
Receiver module is used to receive the switching controls descriptor from front-end server;
Parsing module is used for described switching controls descriptor resolved and obtains switching control information;
Handover module is used for carrying out program according to said control information and switches.
Further, the said platform control device of cutting also comprises: first judge module, be used for judging that the switch mode of said switching control information is broadcast channel pattern or broadband channel pattern, and carry out program for said handover module judged result and switch.
Further, the said platform control device of cutting also comprises: display module is used for the information after switching is shown.
Further, the described platform control device of cutting also comprises: second judge module, be used for judging whether the pressure sign of said switching control information is " 1 ", and when forcing to be masked as " 1 ", force to carry out program by said handover module and switch; Select module, be used for when said pressure sign is not 1, select whether to carry out program according to information and switch, if select be, then carry out program according to control information and switch by said handover module, select not carry out the program switching.
Further, the described platform control device of cutting also comprises: sending module is used for sending media resource according to switching control information to described front-end server and obtains request; Media data is separated read through model, is used for the media data from front-end server is understood, and the media data after the deciphering is shown by said display module.
The invention has the beneficial effects as follows: the present invention receives, resolves the switching controls descriptor from front-end server through digital TV terminal; Acquisition is used to cut the control information of platform; And then realize that program switches; Can realize application such as urgent broadcast, emergency information, pressure advertisement easily, thereby avoid front end to increase extra cost, reduce the integrated difficulty at terminal simultaneously.
Description of drawings
Fig. 1 is the flow chart that the present invention cuts platform control method embodiment;
Fig. 2 is the flow chart that the present invention cuts platform control method embodiment one;
Fig. 3 is the flow chart that the present invention cuts platform control method embodiment two;
Fig. 4 is the flow chart that the present invention cuts platform control method embodiment three;
Fig. 5 is a kind of platform control device figure that cuts of the embodiment of the invention.
Embodiment
Consult Fig. 1, the embodiment of the invention comprises:
S101: television terminal receives the switching controls descriptor from front-end server.
Receiving terminal for digital television monitors and receives the switching controls descriptor constantly in playing process; Said receiving terminal for digital television is meant DVB end product, IPTV end product or DVB and IP dual-mode terminal product; Said switching controls descriptor is the private data structure that defines in order to make the present invention be achieved; For the DVB product, said switching controls descriptor is encapsulated in the ground floor looping discription of NIT or is encapsulated in the BAT ground floor looping discription; For the IPTV end product, said switching controls descriptor is packaged into the form of XML, is issued to the IPTV terminal through the IP Frame; For DVB and IP dual analog end product, said switching controls descriptor can be encapsulated in the ground floor looping discription of NIT or be encapsulated in the BAT ground floor looping discription, also can be packaged into the form of XML, is issued to dual-mode terminal through the IP Frame;
S102: television terminal is resolved the switching controls descriptor that receives, and obtains being used to cut the control information of platform.
Monitoring reception has arrived the switching controls descriptor in step S101, the control information that need obtain being used to cut platform through each field of resolving in the switching controls descriptor.
Wherein, said switching controls descriptor provides and switches required necessary control information and the associated description information of program; Said necessary control information specifically comprises: force sign, information description sign, standby mode, switch mode, transport stream identification symbol, original network identification symbol, transmission system descriptor, task identifier, URL length, URL, port numbers, media path length, media path, agreement, stand-by period, UTC time;
Wherein, said pressure sign is used to provide the control mode of switching mode, representes when being designated ' 1 ' can automatically switch to specific time point, representes when being designated ' 0 ' to allow the user to choose whether to switch to specific time point; Said information description sign provides the follow-up sign that whether has information descriptor, representes the follow-up information descriptor that exists when being designated ' 1 ', representes the follow-up information descriptor that do not exist when being designated ' 0 '; Said standby mode is used to provide the standby mode that program switches, and according to descriptor, can be to switch, wait for time switching, fixed time switching immediately; Said switch mode provides the concrete pattern of switching, in the practical application can be to switch to broadcast channel or switch to the broadband channel.
When switch mode when switching to broadcast channel, comprise following field in the descriptor: transport stream identification symbol, original network identification symbol, transmission system descriptor, task identifier; When switch mode when switching to the broadband channel, comprise following field in the descriptor: URL length, URL, port numbers, media path length, media path, agreement;
Wherein, said transport stream identification symbol is used to identify a unique MPTS in a transmission system; Said original network identification symbol, the network identifier and the transport stream identification that are used to provide the original transmitted system accord with a MPTS of unique identification (TS) together; Said transmission system descriptor; Be used to describe the frequency relevant information at transport stream identification symbol and original network identification symbol institute uniquely identified MPTS place; According to the practical application needs; Can be wired delivery system descriptor, satellite transmission system description symbol, terrestrial delivery system descriptor, the syntactic structure of transmission system descriptor and definition be specifically referring to the SI standard; Said task identifier is used for identifying different service at MPTS; Said URL length is used to provide the byte number of URL; Said URL is used to provide URL, in practical application, is used for providing the path that is applied in broadband network; Said port numbers is used to provide port numbers; Said media path length is used to provide the length of media path; Said media path is used to provide the concrete path of medium; Said agreement is used to identify the agreement of stream medium data encapsulation; The said stand-by period is used to provide from monitoring the switching controls descriptor to carrying out the stand-by period of switching; The said UTC time is used to provide the fixed time of fixed time switching;
Said associated description information provides description through following field: horizontal-shift, vertical shift, width, highly, duration, information descriptor; Said horizontal-shift term provides the horizontal offset of the application after the switching; Said vertical shift term provides the vertical offset of the application after the switching; Said width is used to provide the display width that switches the back application; Said height is used to provide the demonstration height that switches the back application; The said duration is used to provide switches the duration that demonstration is used in the back; Said information descriptor is used to the description of the information that provides, and can define voluntarily according to practical application, can be text description, picture location expression, audio frequency and video location expression; The information that said information descriptor is described shows when switch prompting.
S103: television terminal carries out program according to control information and switches.Carrying out program according to the described information of each field in the S102 parsing switching controls descriptor switches.
Concrete control method is following: receiving terminal for digital television is monitored and is received after the switching controls descriptor, cuts platform according to the control information control of describing in the switching controls descriptor.
Wherein, when forcing in the said switching controls descriptor to be designated ' 1 ', arrive the condition of the appointment described in the switching controls descriptor, can force to switch, otherwise, need the user to select switching.It is to switch that the user selects, and selects not switch; The condition of the appointment described in the said switching controls descriptor is meant the described standby mode of standby mode, in concrete the application can be to switch immediately, wait for that the time switches or the fixed time switches; The said switching immediately is meant that receiving the switching controls descriptor switches afterwards immediately; Wait was switched by the specified time of stand-by period afterwards after said one time of wait switching was meant and receives the switching controls descriptor; Said fixed time switches and is meant according to the specified time of UTC time field in the switching controls descriptor and switches; Described switching controls also comprises switch mode; Said switch mode is provided by switch mode field in the switching controls descriptor; Said switch mode switches to different passages according to the different numerical sign, specifically can be to switch to broadcast channel or switch to the broadband channel.
The said broadcast channel that switches to is the path that identifies switching through transport stream identification symbol, original network identification symbol, transmission system descriptor, task identifier.Said transport stream identification symbol is used to identify a unique MPTS in a transmission system; Said original network identification symbol, the network identifier and the transport stream identification that are used to provide the original transmitted system accord with a MPTS of unique identification (TS) together; Said transmission system descriptor is used to describe transport stream identification symbol and original network identification and accords with the frequency relevant information that institute's uniquely identified MPTS belongs to.According to the practical application needs, can be wired delivery system descriptor, satellite transmission system description symbol, terrestrial delivery system descriptor, the syntactic structure of transmission system descriptor and definition are specifically referring to the SI standard; Said task identifier is used for identifying different service at MPTS.
The said broadband channel that switches to is to come the agreement of marked network path and employing to identify the path of switching through URL, port numbers, media path, agreement; Said URL is used to provide URL, in practical application, is used for providing the path that is applied in broadband network; Said port numbers is used to provide port numbers; Said media path is used to provide the concrete path of medium; Said agreement is used to identify the agreement of stream medium data encapsulation.
Said switching controls descriptor also is used to provide and switches deutomerite purpose associated description information, be specially horizontal-shift, vertical shift, width, highly, the duration; Said horizontal-shift is used to provide the horizontal offset of the application after the switching; Said vertical shift is used to provide the vertical offset of the application after the switching; Said width is used to provide the display width that switches the back application; Said height is used to provide the demonstration height that switches the back application; The said duration is used to provide switches the duration that demonstration is used in the back.
Described associated description information also comprises information descriptor; Said information descriptor is used to the description of the information that provides, and can define voluntarily according to practical application, can be text description, picture location expression, audio frequency and video location expression; The information that said information descriptor is described shows when switch prompting.
Provide the syntactic structure of switching controls descriptor below:
Syntactic structure is described below:
Descriptor_tag: descriptor tag, the 8bit field is used to identify different descriptors.Being defined herein as 0xFE (in SI standard the inside, providing the descriptor tag that 0x80-0xFE defines for the user voluntarily), representing that this descriptor is the switching controls descriptor, is the unique identification of switching controls descriptor.
Descriptor_length: descriptor length, the 8bit field provides this field byte number of descriptor afterwards.
Force_flag: force sign, the 1bit field is used to provide the control model of switching, switches for forcing when being designated ' 1 ', representes optional switching when being designated ' 0 '.
Info_describe_flag: the information description sign, the 1bit field is represented the follow-up information description field that has when being designated ' 1 ', represent the follow-up information description field that do not have when being designated ' 0 '.
Reserved: keep, keep following expansion and use.
Wait_mode: standby mode, the 8bit field is used to provide the standby mode of switching, and table 1 is seen in concrete definition:
The distribution of table 1wait_mode
| The wait_mode value | Standby mode |
| ?0x00 | Keep |
| ?0x01 | Immediately |
| ?0x02 | Wait for the time |
| ?0x03 | Fixed time |
| ?0x04-0xFF | User definition |
Switch_mode: switch mode, the 8bit field is used to identify different switch modes, and see table 2 concrete the distribution:
The distribution of table 2switch_mode
| The switch_mode value | Switch mode |
| ?0x00 | Keep |
| ?0x01 | Switch to broadcast channel |
| ?0x02 | Switch to the broadband channel |
| ?0x03-0xFF | User definition |
Transport_stream_id: the transport stream identification symbol, the 16bit field in a transmission system, is used to identify a unique MPTS.
Original_network_id: original network identification symbol, the 16bit field, the network identifier and the transport stream identification that are used to provide the original transmitted system accord with a MPTS of unique identification (TS) together.
Transport_system_descriptor (): the transmission system descriptor is used to describe the frequency relevant information that transport stream identification accords with (transport_stream_id) and original network identification symbol (original_network_id) institute uniquely identified MPTS place.According to the practical application needs, can be wired delivery system descriptor (cable_delivery_system_descriptor ()), satellite transmission system description symbol (satellite_delivery_system_descriptor ()), terrestrial delivery system descriptor (terrestrial_delivery_system_descriptor ()).The syntactic structure of transmission system descriptor and definition are specifically referring to the SI standard.
Service_id: task identifier, the 16bit field is used for identifying different service at MPTS.Service_id is corresponding with the program_number among the program_map_section.
Url_length: URL length, the 8bit field is used to provide the byte number of URL.
Url: URL, be used to provide URL, in practical application, be used for providing the path that is applied in broadband network.The detailed semanteme of URL and usage are referring to standard RFC1738.
Port: port numbers, the 16bit field is used to provide port numbers.
Media_path_length: media path length, the 8bit field is used to provide the length of media path.
Media_path: media path is used to provide the concrete path of medium.
Protocal: agreement, the 16bit field is used to identify the agreement that stream medium data encapsulates, specifically referring to table 3:
The distribution of table 3protocal
| The protocal value | Tunneling |
| 0x00 | Keep |
| 0x01 | TS/TCP |
| 0x02 | TS/UDP |
| 0x03 | TS/RTP/TCP |
| 0x04 | TS/RTP/TCP |
| 0x05-0xFF | User definition |
Wait_time: the stand-by period, the 24bit field by 4 BCD codings, is represented 6 numerals, is used for identified time.For example: 12:45:00 is encoded as " 124500 ".
The UTC_time:UTC time, the 40bit field comprises current time and the date represented with UTC and MJD form.The preceding 16 bit representation MJD date codes of this field are pressed 4 BCD codings, are represented 6 numerals for all the other 24.For example: 93/10/13 12:45:00 is encoded as " 0xc079124500 ".
Horizontal_offset: horizontal-shift, the 16bit field provides the horizontal offset of picture or video.
Vertical_offset: vertical shift, the 16bit field provides the vertical offset of picture or video.
Width: width, the 16bit field provides the width that picture or video show.
Height: highly, the 16bit field provides the height that picture or video show.
Duration: the duration, the 24bit field provides the duration that picture or video show.This field is represented 6 numerals by 4 BCD codings, is used for representing hour, minute, second.For example: 12:45:37 is encoded as " 0x124537 ".
Descriptor (): information descriptor is used to the description of the information that provides.Can define voluntarily according to practical application, can be text description, picture location expression, audio frequency and video location expression.
Embodiment one DVB terminal method for handover control
In practical application; If digital TV terminal is the DVB terminal; The value of the switch mode field in the said switching controls descriptor is " 0x01 ", and expression switches to broadcast channel, then switches according to the broadcast channel agreement; Concrete switching controls flow process sees also Fig. 2, and said concrete switching controls flow process comprises the steps:
Step S201: monitor the switching controls descriptor among BAT or the NIT.
The DVB terminal monitoring and receive BAT or NIT in the switching controls descriptor, said DVB terminal generally is meant top box of digital machine or digital TV integrated machine.Said switching controls descriptor has the syntactic structure of the self-defining switching controls descriptor of the present invention, and said switching controls descriptor provides and switches required necessary control information and the associated description information of program.
Wherein, said necessary control information specifically comprises: force sign, information description sign, standby mode, switch mode, transport stream identification symbol, original network identification symbol, transmission system descriptor, task identifier, stand-by period, UTC time.Said pressure sign is used to provide the control mode of switching mode, representes when being designated ' 1 ' can automatically switch to specific time point, representes when being designated ' 0 ' to allow the user to choose whether to switch to specific time point; Said information description sign provides the follow-up sign that whether has information descriptor, representes the follow-up information descriptor that exists when being designated ' 1 ', representes the follow-up information descriptor that do not exist when being designated ' 0 '; Said standby mode is used to provide the standby mode that program switches, and according to descriptor, can be to switch, wait for time switching, fixed time switching immediately; Said switch mode provides the concrete pattern of switching, in the practical application can be to switch to broadcast channel or switch to the broadband channel, switches for the DVB terminal, is designated " 0x01 " expression and switches to broadcast channel.
Switch for the DVB terminal, switch mode comprises following field for switching to broadcast channel in the descriptor: transport stream identification symbol, original network identification symbol, transmission system descriptor, task identifier.
Said transport stream identification symbol is used to identify a unique MPTS in a transmission system; Said original network identification symbol, the network identifier and the transport stream identification that are used to provide the original transmitted system accord with a MPTS of unique identification (TS) together; Said transmission system descriptor; Be used to describe the frequency relevant information at transport stream identification symbol and original network identification symbol institute uniquely identified MPTS place; According to the practical application needs; Can be wired delivery system descriptor, satellite transmission system description symbol, terrestrial delivery system descriptor, the syntactic structure of transmission system descriptor and definition be specifically referring to the SI standard; Said task identifier is used for identifying different service at MPTS; The said stand-by period is used to provide from monitoring the switching controls descriptor to carrying out the stand-by period of switching; The said UTC time is used to provide the fixed time of fixed time switching.
Said associated description information provides description through following field: horizontal-shift, vertical shift, width, highly, duration, information descriptor; Said horizontal-shift term provides the horizontal offset of the application after the switching; Said vertical shift term provides the vertical offset of the application after the switching; Said width is used to provide the display width that switches the back application; Said height is used to provide the demonstration height that switches the back application; The said duration is used to provide switches the duration that demonstration is used in the back; Said information descriptor is used to the description of the information that provides, and can define voluntarily according to practical application, can be text description, picture location expression, audio frequency and video location expression; The information that said information descriptor is described shows when switch prompting.The DVB terminal juncture is monitored and is received among BAT or the NIT whether have the switching controls descriptor.
Step S202: resolve each field in the switching controls descriptor.
Each field in the DVB terminal parses switching controls descriptor.
Said switching controls descriptor comprises but is not limited to following field: force sign, information description sign, standby mode, switch mode, transport stream identification symbol, original network identification symbol, transmission system descriptor, task identifier, stand-by period or UTC time, horizontal-shift, vertical shift, width, highly, duration, information descriptor.
Step S203: judge and force whether sign is ' 1 '.Judge to force whether attribute field is ' 1 ', turn to step S205 for ' 1 ' time; Turn to step S204 for ' 0 ' time.
Step S204: the time point according to standby mode indicated is given user prompt information.
When being " 0x01 ", the standby mode field identification representes to carry out immediately switching; Represent to wait for time switching when being designated " 0x02 ", the time of wait is given by the stand-by period field; Being illustrated in the fixed time when being designated " 0x03 " switches, and the time of appointment is given by UTC time field.The said user prompt information of giving is meant whether the prompting user switches, and the information of prompting also comprises additional information, and additional information is used to provide the explanation of the business after the switching; Said additional information is given by information descriptor; Said information descriptor can define according to practical application voluntarily, can be text description, picture location expression, audio frequency and video location expression.
Step S205: directly carry out program according to the time point that standby mode indicated and switch.
The time point that the standby mode field is indicated sees also the description of step S204.
The said program that carries out switches transport stream identification symbol, original network identification symbol, the task identifier institute uniquely identified business of switching to that be meant; The MPTS at said professional place is by transport stream identification symbol, original network identification symbol unique identification; The frequency point information at said MPTS place is described by the transmission system descriptor; Said transmission system descriptor can be line transmission system descriptor, sts satellite transmission system descriptor, ground transmission system descriptor according to practical application.
Step S206: whether the user selects to switch.
Whether the user selects to switch, and selection is to turn to step S207; Select not turn to step S208.
Step S207: carry out program and switch.
The said program that carries out switches transport stream identification symbol, original network identification symbol, the task identifier institute uniquely identified business of switching to that be meant; The MPTS at said professional place is by transport stream identification symbol, original network identification symbol unique identification; The frequency point information at said MPTS place is described by the transmission system descriptor; Said transmission system descriptor can be line transmission system descriptor, sts satellite transmission system descriptor, ground transmission system descriptor according to practical application.
Step S208: do not carry out program and switch.
On original program, continue to play, do not carry out program and switch.
Step S209: the information after control is switched according to the descriptor in the switching controls descriptor shows.
Said descriptor is meant the information that following field identifies: horizontal-shift, vertical shift, width, highly, the duration; Said horizontal-shift is used to provide the horizontal offset of picture or video; Said vertical shift is used to provide the vertical offset of picture or video; Said width is used to provide the width of picture or video demonstration; Said height is used to provide the height of picture or video demonstration; The said duration is used to provide the duration of picture or video demonstration.
Embodiment two IP terminal method for handover control
In practical application; If digital TV terminal is the IP terminal, the value of the switch mode field in the said switching controls descriptor is " 0x02 ", and expression switches to the broadband channel; Then switch according to the broadband channel agreement, concrete switching controls flow process sees also Fig. 3:
Step S301: analyzing XML file, monitoring switching controls descriptor.
IP terminal parses XML file, monitoring switching controls descriptor.
Said IP terminal can be IPTV terminal or internet television (OTT) terminal in practical application; Whether there is the switching controls descriptor and receives the switching controls descriptor in the said IP terminal monitoring XML file.
Step S302: resolve the switching controls descriptor.
Each field in the IP terminal parses switching controls descriptor.
Said switching controls descriptor comprises but is not limited to following field: force sign, information description sign, standby mode, switch mode, URL length, URL, port numbers, media path length, media path, agreement, stand-by period or UTC time, horizontal-shift, vertical shift, width, highly, duration, information descriptor.The concrete implication of above field is said referring to embodiment 1.
Step S303: send acquisition request conforms.
Said IP terminal to server sends acquisition request conforms.
Said resource is a media resource; Described request comprises following information at least: URL, port numbers, media path length, media path, agreement; The path of said media resource is given by URL, port numbers, media path length, media path; The employed data packetizing protocol of said media resource is given by protocol fields.
Step S304: media data sends.
Server sends media data according to the IP terminal request.
The encapsulation of said media data is given by protocol fields.
The data encapsulation bearing protocol was TS/TCP when said protocol fields was designated " 0x01 "; The data encapsulation bearing protocol was TS/UDP when said protocol fields was designated " 0x02 "; The data encapsulation bearing protocol was TS/RTP/TCP when said protocol fields was designated " 0x03 "; The data encapsulation bearing protocol was TS/RTP/TCP when said protocol fields was designated " 0x04 ".
Step S305: media data is resolved.
IP resolves media data at the terminal, specifically comprises to the parsing of agreement and to the decoding processing of media data.
Said parsing to agreement is meant that the agreement that identifies according to protocol fields resolves the tunneling of media data, thereby obtains media data; Said media data is decoded is meant through decoder media data decoded.
Step S306: show according to descriptor.
The IP terminal shows the decoded media data according to descriptor.
Said descriptor is meant the information that following field identifies: horizontal-shift, vertical shift, width, highly, the duration; Said horizontal-shift is used to provide the horizontal offset of picture or video; Said vertical shift is used to provide the vertical offset of picture or video; Said width is used to provide the width of picture or video demonstration; Said height is used to provide the height of picture or video demonstration; The said duration is used to provide the duration of picture or video demonstration.
Embodiment three DVB and IP dual analog terminal method for handover control
In practical application,, judge whether to be broadcast channel according to the switch mode in the control information if digital TV terminal is DVB and IP dual analog terminal; If, then switch according to the Radio Broadcasting Agreements passage, otherwise; Switch according to the wideband protocol passage, concrete switching controls flow process sees also Fig. 4:
Step S401: monitor the switching controls descriptor.DVB and IP dual analog terminal monitoring switching controls descriptor are meant DVB and the dual monitoring of IP tunnel and receive the switching controls descriptor; Be specially the DVB passage and monitor and receive the switching controls descriptor among BAT and the NIT, the switching controls descriptor in the XML file is monitored and received to IP tunnel analyzing XML file.
Step S402: judge switch mode.Judge switch mode, switch mode turns to step S404 for switching to broadcast channel; Switch mode turns to step S403 for switching to the broadband channel.
Step S403: carry out switching according to the broadband channel agreement.Switch to of the step explanation of the method for handover control of broadband channel referring to Fig. 3 and embodiment two.
Step S404: carry out switching according to the broadcast channel agreement.Switch to of the step explanation of the method for handover control of broadcast channel referring to Fig. 2 and embodiment one.
Below the embodiment of the invention cut the platform control device further set forth, see also Fig. 5, the platform control device of cutting of embodiment of the invention DTV comprises:
Receiver module 501: be used to receive switching controls descriptor from front-end server;
Parsing module 502: be used for described switching controls descriptor resolved and obtain switching control information;
Handover module 503: be used for carrying out program and switch according to said control information;
Further, the device of present embodiment also comprises:
First judge module 504: be used for judging that the switch mode of said switching control information is broadcast channel pattern or broadband channel pattern, carry out program for said handover module 503 judged result and switch;
Further, the device of present embodiment also comprises:
Display module 509: be used for the information after switching is shown;
Further, the device of present embodiment also comprises:
Second judge module 505: be used for judging whether the pressure sign of said switching control information is " 1 ", when forcing to be masked as " 1 ", force to carry out program by handover module 503 and switch;
Select module 506: be used for when said pressure sign is not 1, select whether to carry out program according to information and switch, if select be, then carry out program according to control information and switch by handover module 503, select not carry out the program switching;
Further, the device of present embodiment also comprises:
Sending module 507 is used for sending media resource according to switching control information to said front-end server and obtains request;
Media data is separated read through model 508, is used for the media data from front-end server is understood, and the media data after the deciphering is shown by display module 509.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
- A DTV cut the platform control method, it is characterized in that said method comprises:The switching controls descriptor from front-end server is monitored and received to television terminal;Said television terminal is resolved the said switching controls descriptor that receives, and obtains being used to cut the control information of platform;Said television terminal carries out program according to control information and switches.
- DTV according to claim 1 cut the platform control method, it is characterized in that:When said television terminal was digital multimedia broadcasting terminal, the platform control method of cutting of said DTV was switched according to the broadcast channel agreement, and said the switching according to the broadcast channel agreement comprises:The said switching controls descriptor in BAT bouquet association table or the network information table is monitored and received to said digital multimedia broadcasting terminal;Said digital multimedia broadcasting terminal is resolved the switching controls descriptor that receives, and obtains being used to cut the control information of platform;Said digital multimedia broadcasting terminal carries out program according to said control information and switches: when the switch mode of said control information is broadcast channel, switch to the broadcast channel pattern; Judge whether the pressure sign in the said control information is " 1 ",, then carry out program automatically and switch according to the time point that standby mode indicated in the said control information if said pressure is masked as " 1 "; Otherwise, whether select to carry out program according to said time point prompting user and switch, if, then carry out program and switch, do not switch otherwise do not carry out program.
- 3. DTV according to claim 1 cuts the platform control method; It is characterized in that; When said television terminal was the procotol terminal, the platform control method of cutting of said DTV was switched according to the broadband channel agreement, and said the switching according to the broadband channel agreement comprises:Said procotol terminal monitoring and reception are packaged in the said switching controls descriptor in the extensible markup language document;Resolve the said switching controls descriptor in the extensible markup language document at said procotol terminal, obtains being used to cut the control information of platform;Said procotol terminal is carried out program according to said control information and switched: according to said control information, said procotol terminal is sent media data to said front-end server and is obtained request; Said front-end server sends media data according to solicited message to said procotol terminal after receiving the request of obtaining of said media data; Said procotol terminal receives said media data and decodes.
- DTV according to claim 1 cut the platform control method, it is characterized in that when said television terminal was the dual analog terminal at DMB and procotol terminal, the platform control method of cutting of said DTV comprised:The dual analog terminal monitoring at said DMB and procotol terminal also receives the switching controls descriptor from front-end server;The switching controls descriptor that the dual analog end-on at said DMB and procotol terminal is received is resolved, and obtains being used to cut the control information of platform;The dual analog terminal at said DMB and procotol terminal is carried out program according to said control information and is switched: judge whether the switch mode in the said control information is broadcast channel; If; Then switch according to the Radio Broadcasting Agreements passage, otherwise, switch according to the wideband protocol passage;Wherein, the said switching according to the Radio Broadcasting Agreements passage comprises:The said switching controls descriptor in BAT bouquet association table or the network information table is monitored and received to said digital multimedia broadcasting terminal;Said digital multimedia broadcasting terminal is resolved the switching controls descriptor that receives, and obtains being used to cut the control information of platform;Said digital multimedia broadcasting terminal carries out program according to said control information and switches: when the switch mode of said control information is broadcast channel, switch to the broadcast channel pattern; Judge whether the pressure sign in the said control information is " 1 ",, then carry out program automatically and switch according to the time point that standby mode indicated in the said control information if said pressure is masked as " 1 "; Otherwise, whether select to carry out program according to said time point prompting user and switch, if, then carry out program and switch, do not switch otherwise do not carry out program;Wherein, the said switching according to the wideband protocol passage comprises:Said procotol terminal monitoring and reception are packaged in the said switching controls descriptor in the extensible markup language document;Resolve the said switching controls descriptor in the extensible markup language document at said procotol terminal, obtains being used to cut the control information of platform;Said procotol terminal is carried out program according to said control information and switched: according to said control information, said procotol terminal is sent media data to said front-end server and is obtained request; Said front-end server sends media data according to solicited message to said procotol terminal after receiving the request of obtaining of said media data; Said procotol terminal receives said media data and decodes.
- According to each described DTV of claim 1-4 cut the platform control method, it is characterized in that said carrying out also comprises after the step that program switches:Information according to after the switching of the control of the descriptor in said switching descriptor program shows.
- A DTV cut the platform control device, it is characterized in that, comprising:Receiver module is used to receive the switching controls descriptor from front-end server;Parsing module is used for described switching controls descriptor resolved and obtains switching control information;Handover module is used for carrying out program according to said control information and switches.
- 7. DTV according to claim 6 cuts the platform control device; It is characterized in that; The said platform control device of cutting also comprises: first judge module; Be used for judging that the switch mode of said switching control information is broadcast channel pattern or broadband channel pattern, carry out program for said handover module judged result and switch.
- DTV according to claim 6 cut the platform control device, it is characterized in that the said platform control device of cutting also comprises: display module is used for the information after switching is shown.
- According to each described DTV of claim 6-8 cut the platform control device, it is characterized in that the described platform control device of cutting also comprises:Second judge module is used for judging whether the pressure sign of said switching control information is " 1 ", when forcing to be masked as " 1 ", forces to carry out program by said handover module and switches;Select module, be used for when said pressure sign is not 1, select whether to carry out program according to information and switch, if select be, then carry out program according to control information and switch by said handover module, select not carry out the program switching.
- According to each described DTV of claim 6-8 cut the platform control device, it is characterized in that the described platform control device of cutting also comprises:Sending module is used for sending media resource according to switching control information to described front-end server and obtains request;Media data is separated read through model, is used for the media data from front-end server is understood, and the media data after the deciphering is shown by said display module.
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| CN2012101568906A CN102724587A (en) | 2012-05-18 | 2012-05-18 | Channel switching control method and device for digital televisions |
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| CN103747333A (en) * | 2013-10-28 | 2014-04-23 | 华为终端有限公司 | Method and device for controlling set top box |
| WO2015000379A1 (en) * | 2013-07-04 | 2015-01-08 | 珠海格力电器股份有限公司 | Method for remotely controlling air conditioner and remote control system for air conditioner |
| CN109089165A (en) * | 2018-09-14 | 2018-12-25 | 深圳Tcl新技术有限公司 | Switching method, television set and the storage medium of television warning channel |
| CN112911089A (en) * | 2021-01-25 | 2021-06-04 | 睿魔智能科技（深圳）有限公司 | Method and system for automatically switching director pictures |
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