CN103905838A - Method and system for enabling terminal to play DVB services - Google Patents
Method and system for enabling terminal to play DVB services Download PDFInfo
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Abstract
The invention discloses a method and system for enabling a terminal to play DVB services. The method comprises the steps that a request of a playing channel is received through a DVB server, and the type of the playing channel is judged; if the playing channel is an audio and video program, audio and video data corresponding to the playing channel are filtered, demultiplexed and sectionally multiplexed and sent to the terminal to be played; if the playing channel is an image and text program, image and text data corresponding to the image and text program are downloaded, the home page address corresponding to the image and text program is sent to the terminal, and the terminal plays the image and text data according to the home page address. Thus, the terminal can play the DVB services such as television programs, image and text programs and webpages, is high in playing definition, has no delay, cannot be affected by telecommunication networks and brings great convenience.
Description
Technical field
The present invention relates to terminal field, in particular a kind of method of terminal plays DVB business and system thereof.
Background technology
Digital video broadcasting (DVB, be abbreviated as Digital Video Broadcasting), it is by european telecommunications standards institute (ETSI, European Telecommunications Standards Institute), European electronic standardization tissue (CENELEC, European Committee for Electro technical Standardization) and (EBU of European Broadcasting Union, European Broadcasting Union) the joint specialist group (JTC, Joint Technical Committee) that constitutes jointly initiates.
DVB digital broadcasting transmission system has utilized all general television broadcasting transmitting media including satellite, wired, ground, SMATV, MNDSD.They respectively corresponding DVB standard be: DVB-S, DVB-C, DVB-T, DVB-SMATV, DVB-MS and DVB-MC.System adopts audio frequency, video and the data formats of MPEG-2 compression as resource; Adopt public MPEG-2 transmission (TS, Transport Stream); Transmission system is divided into source encoding and decoding (Source Coding) and channel coding/decoding (Channel Coding) two parts.First information source coding carries out multiplexing to the Voice & Video of MPEG-2 coding, and then multiple digital television program stream is transmitted multiplexing.Carry out corresponding demultiplexing and decoding at receiving terminal.
The specific equipment of service needed based on the visible DVB standard network of above network characteristic accepts and decoded data shows user's (as Set Top Box, TV).And mobile phone, flat-panel devices, the equipment of DVB signal of cannot decoding such as computer, and the prior art scheme of browsing DVB business comprises following several:
Server end carries out transcoding to DVB business, by streaming media server to distribution of services.The TV programme code stream of common a set of SD can reach code check more than 4Mbps, server end load simultaneously multi-user, and broadcasting of multi-channel program, higher to the requirement of bandwidth and server end equipment.In existing solution, more common problem is that TV programme is unintelligible, and when watching, due to unstable networks, card appears in program.
Use Radio Transmission Technology distribution DVB business in terminal by Set Top Box or TV.Existing Radio Transmission Technology has: DLNA, Air Play and wireless biography screen technology.DLNA technology is intended to solve individual PC, consumer appliances, and mobile device interconnects interior wireless network and cable network, makes the unconfined shared and growth of Digital Media and content service become possibility.DLNA function comprises equipment Inspection, controls media management etc., DLNA equipment uses http protocol or Real-time Transport Protocol to carry out media delivery, and the media coding form of agreement regulation has: JPEG, PNG, GIF, TIFF, Audio LPCM AAC, AC-3, ATRAC 3plus, MP3, WMA9, MPEG2, MPEG-1, MPEG-4*, AVC, WMV9.And the shortcoming of this technical scheme is to support the data as EPG, the management of the business tines such as webpage.Air Play is a kind of wireless technology of apple exploitation, can comprise picture, audio frequency, video on iOS equipment be transferred to the Air Play equipment of supporting by wireless mode by WIFI.And and DLNA technology type seemingly, shortcoming is also to support EPG data, the management of the business tines such as webpage.Wireless biography screen technical functionality is the same with the mirror image technology of Air Play with Miracast, can TV desktop screen be transferred on cell phone apparatus by WIFI.The shortcoming of this technical scheme is that operation has time delay, high to network requirement, and audio frequency and video are play nonsynchronous situation that easily occurs.Therefore, present stage DVB audio frequency and video business is unintelligible by IP mode Program Transport, time delay is large, easily card, and other business of present stage DVB cannot be used across screen, and namely DVB business cannot be at mobile phone, flat-panel devices, computers etc. cannot be decoded on the equipment of DVB signal and be used, and have brought inconvenience greatly to user.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of method and system thereof of terminal plays DVB business are provided, be intended to solve existing DVB business and cannot in the terminal of the DVB signals of cannot decoding such as mobile phone, flat-panel devices and computer, use as business such as EPG data and webpages, and existing DVB audio frequency and video business Program Transport is unintelligible, time delay large and the easy problem of card.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A method for terminal plays DVB business, wherein, comprises the following steps:
The operational order that terminal receives user sends the request of obtaining channel information corresponding to DVB business to DVB server;
The request of obtaining channel information described in described DVB server receives, the electric program menu data the recompile that obtain DVB business become corresponding extensible markup language document, send to described terminal;
Described terminal shows the electric program menu data of described DVB business, and the operational order that receives user sends the request of broadcasting channel to DVB server;
Described DVB server receives the request of described broadcasting channel, judge the type of described broadcasting channel, if described broadcasting channel is audio/video program, audio, video data corresponding to described broadcasting channel filtered, demultiplexing and segmentation are multiplexing, and are sent to described terminal and play; If described broadcasting channel is graphic program, to download the image, text and data that described graphic program is corresponding, and send home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address.
The method of described terminal plays DVB business wherein, also comprised before terminal reception user's operational order sends the request of obtaining channel information corresponding to DVB business to DVB server:
The operational order that terminal receives user sends the request of searching for channel information corresponding to DVB business to DVB server;
Described DVB server, according to the searching request of described terminal, is collected the programme information corresponding to DVB business of current time, generates corresponding electric program menu data.
The method of described terminal plays DVB business, wherein, in the time that described broadcasting channel is audio/video program, filters audio, video data corresponding to described broadcasting channel, and demultiplexing and segmentation are multiplexing, and is sent to described terminal and plays, and specifically comprises:
In the time that described broadcasting channel is audio/video program, start audio frequency and video filter described audio, video data is filtered, and the real time streaming transport protocol address that sends audio/video flow is to described terminal;
To the audio frequency and video TS stream demultiplexing respectively after filtering, the audio frequency and video TS stream after demultiplexing is carried out to fragmented storage take video I frame as gauge point;
The data of fragmented storage are carried out to segmentation multiplexing, be repackaged into TS stream, and be sent to described terminal and play.
The method of described terminal plays DVB business, wherein, flows take video I frame as gauge point carries out fragmented storage the audio frequency and video TS after demultiplexing, specifically comprises:
Audio frequency and video TS stream after demultiplexing is carried out to fragmented storage take video I frame as gauge point, and the displaying time stamp of mark audio/video frames, when displaying time stabs when invalid, uses current program clock reference value to proofread and correct;
When reaching some, TS flow point section stored number will from circulation, delete.
The method of described terminal plays DVB business, wherein, in the time that described broadcasting channel is graphic program, download the image, text and data that described graphic program is corresponding, and send home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address, also comprises:
When described graphic program is during across frequency program, by corresponding string searching DVB protocol header, according to the address format of DVB standard definition, obtain network identity, transmission traffic identifier and program identification in address, the identify label of obtaining channel by described network identity, transmission traffic identifier and program identification in electric program menu data, converts corresponding self defined interface address to raw address;
Described self defined interface address is sent to described terminal, and described terminal is play described image, text and data according to self defined interface address.
The method of described terminal plays DVB business, wherein, the operational order that terminal receives user sends the request of searching for channel information corresponding to DVB business to DVB server, also comprise:
In the time that terminal reception user's manual search instruction sends the request of channel information corresponding to search DVB business to DVB server, the frequency of DVB server locking terminal request, receive by Program Specific Information filter the data that described frequency is corresponding, return to channel information corresponding to the current frequency of terminal, and upgrade channel information corresponding to electric program menu data;
In the time that terminal reception user's automatic search instruction sends the request of channel information corresponding to search DVB business to DVB server, DVB server obtains the dominant frequency point list information in automatic configuration item, collect network information table and obtain the network information, first frequency in the list of locking dominant frequency point, receive described data corresponding to first frequency by Program Specific Information filter, return to the channel information of the current frequency of terminal, judge whether the frequency in the list of dominant frequency point is searched for complete, if search for complete channel information corresponding to electric program menu data that upgrade, continue search if search for not complete second frequency returning in the list of locking dominant frequency point, until search for complete,
In the time that terminal reception user's full range search instruction sends the request of channel information corresponding to search DVB business to DVB server, DVB server starts locked frequency point from frequency 88MHZ, receive by Program Specific Information filter the data that described frequency is corresponding, return to the channel information of the current frequency of terminal, on the basis of described frequency 88MHZ, each 8MHZ of increasing continues search, until the frequency of frequency exceedes 860MHZ, upgrade channel information corresponding to electric program menu data.
A system for terminal plays DVB business, comprises terminal and DVB server, wherein,
Described terminal comprises:
Request sending module, sends the request of obtaining channel information corresponding to DVB business for the operational order that receives user to DVB server, and sends the request of broadcasting channel to DVB server for receiving user's operational order;
Display module, for showing the electric program menu data of described DVB business, and audio, video data and image, text and data corresponding to graphic program for showing that audio/video program is corresponding;
Described DVB server comprises:
Request receiving module, for the request of obtaining channel information described in receiving, and for receiving the request of described broadcasting channel;
Coding module, becomes corresponding extensible markup language document for the electric program menu data the recompile that obtain DVB business, sends to described terminal;
Type judging module, for judging the type of described broadcasting channel, if described broadcasting channel is audio/video program, filters audio, video data corresponding to described broadcasting channel, and demultiplexing and segmentation are multiplexing, and is sent to described terminal and plays; If described broadcasting channel is graphic program, to download the image, text and data that described graphic program is corresponding, and send home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address.
The system of described terminal plays DVB business, wherein, described request sending module, also sends the request of channel information corresponding to search DVB business to DVB server for receiving user's operational order;
Described DVB server also comprises:
Electric program menu data generation module, for according to the searching request of described terminal, collects the programme information corresponding to DVB business of current time, generates corresponding electric program menu data.
The system of described terminal plays DVB business, wherein, described type judging module comprises:
Type judging unit, for judging that the type of described broadcasting channel is audio/video program or graphic program;
Audio/video program filter element, in the time that described broadcasting channel is audio/video program, starts audio frequency and video filter described audio, video data is filtered, and the real time streaming transport protocol address that sends audio/video flow is to described terminal;
Demultiplexing unit, for the audio frequency and video TS stream demultiplexing respectively to after filtering, carries out fragmented storage to the audio frequency and video TS stream after demultiplexing take video I frame as gauge point;
Segmentation Multiplexing Unit, multiplexing for the data of fragmented storage are carried out to segmentation, be repackaged into TS stream, and be sent to described terminal and play;
Graphic program processing unit, for in the time that described broadcasting channel is graphic program, download the image, text and data that described graphic program is corresponding, and send home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address.
The system of described terminal plays DVB business, wherein, described terminal comprises mobile phone, flat-panel devices and personal computer; Described DVB server comprises Set Top Box and TV.
The method of a kind of terminal plays DVB business provided by the present invention and system thereof, effectively having solved existing DVB business cannot use as business such as EPG data and webpages in the terminal of the DVB signals of cannot decoding such as mobile phone, flat-panel devices and computer, and the problem that existing DVB audio frequency and video business Program Transport is unintelligible, time delay large and easily card pauses, the method for described terminal plays DVB business receives user operational order by terminal sends the request of obtaining channel information corresponding to DVB business to DVB server; The request of obtaining channel information described in described DVB server receives, the electric program menu data the recompile that obtain DVB business become corresponding extensible markup language document, send to described terminal; Described terminal shows the electric program menu data of described DVB business, and the operational order that receives user sends the request of broadcasting channel to DVB server; Described DVB server receives the request of described broadcasting channel, judge the type of described broadcasting channel, if described broadcasting channel is audio/video program, audio, video data corresponding to described broadcasting channel filtered, demultiplexing and segmentation are multiplexing, and are sent to described terminal and play; If described broadcasting channel is graphic program, to download the image, text and data that described graphic program is corresponding, and send home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address; Make user can in the terminals such as mobile phone, computer and flat-panel devices, watch ordinary tv programme, graphic program and webpage etc., expand DVB network and watched the approach of TV, meet the demand of different user, compare with existing IPTV technology, program of the present invention is clear, there is no time delay, and is not subject to the impact of communication network, play smoothness, it is convenient greatly to have brought.
Accompanying drawing explanation
Fig. 1 is the flow chart of method first embodiment of terminal plays DVB business provided by the invention;
Fig. 2 is the method flow diagram of playing audio/video programs in the method for terminal plays DVB business provided by the invention;
Fig. 3 is the flow chart of method second embodiment of terminal plays DVB business provided by the invention;
Fig. 4 is the structured flowchart of system first embodiment of terminal plays DVB business provided by the invention;
Fig. 5 is the structured flowchart of type judging module in the system of terminal plays DVB business provided by the invention;
Fig. 6 is the structured flowchart of system second embodiment of terminal plays DVB business provided by the invention.
Embodiment
The invention provides a kind of method and system thereof of terminal plays DVB business, for making object of the present invention, technical scheme and advantage clearer, clear and definite, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 1, Fig. 1 is the flow chart of method first embodiment of terminal plays DVB business provided by the invention, and as shown in Figure 1, the method for described terminal plays DVB business comprises the following steps:
The operational order that step S100, terminal receive user sends the request of obtaining channel information corresponding to DVB business to DVB server;
The request of obtaining channel information described in step S200, described DVB server receive, the electric program menu data the recompile that obtain DVB business become corresponding extensible markup language document, send to described terminal;
Step S300, described terminal show the electric program menu data of described DVB business, and the operational order that receives user sends the request of broadcasting channel to DVB server;
Step S400, described DVB server receive the request of described broadcasting channel, judge the type of described broadcasting channel, if described broadcasting channel is audio/video program, audio, video data corresponding to described broadcasting channel filtered, demultiplexing and segmentation are multiplexing, and are sent to described terminal and play; If described broadcasting channel is graphic program, to download the image, text and data that described graphic program is corresponding, and send home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address.
Below in conjunction with specific embodiment, above-mentioned steps is described in detail.
In step S100, the operational order that terminal receives user sends the request of obtaining channel information corresponding to DVB business to DVB server.Specifically, described terminal refers to mobile phone, flat-panel devices, and cannot the decode equipment of DVB signal such as computer, described DVB server refers to the business datum of DVB standard network of can accepting and decode such as Set Top Box, TV, and shows user's equipment.Described terminal receives user's operational order, such as user wants to check the channel information corresponding to DVB business of Set Top Box, in described terminal, sends corresponding operational order to Set Top Box.
In the time of practical application, send user's request and receive request results by network mode, such as local area network (LAN), the Internet etc.For example mobile phone or PC, the AP signal of search engine top box above PAD, find corresponding AP signal to input login password afterwards and enter network, thereby networking, can also use browser to enter http://ip:port/index.html, enter and the page is set to network settings, or radio configuration arranges, after preservation, restart Set Top Box and can revise the configuration of acquiescence.
In step S200, the request of obtaining channel information described in described DVB server receives, the electric program menu data the recompile that obtain DVB business become corresponding extensible markup language document, send to described terminal.Specifically, described Set Top Box is receiving after the request of obtaining channel information, obtain the electric program menu data (EPG of DVB business, Electronic Program Guide), data are re-encoded as to i.e. (the xml file) of extensible markup language document simultaneously, then send to described terminal.Described channel information comprises the data such as the network information, channel designation, channel, program category and operator's informaiton, and the current and data such as title, program category follow-up play program.
Preferably, in the time of practical application, can be according to the update cycle of DVB network mid band information, programme content is divided three classes, the one, channel list (update cycle is slow), the 2nd, current/subsequent program information (upgrading frequent), the 3rd, the programme information (upgrading slower) of follow-up several days, be encoded into different xml files according to different programme contents like this, thereby can reduce and the reciprocal process of terminal, improve the interactive performance of terminal.
In step S300, described terminal shows the electric program menu data of described DVB business, and the operational order that receives user sends the request of broadcasting channel to DVB server.Specifically, after the channel information that described terminal is returned at reception DVB server, just in terminal, show the electric program menu data that DVB business is corresponding, user selects to want according to self-demand the broadcasting channel watched, respective operations in terminal, then by terminal, corresponding operational order is converted to the request of broadcasting channel, is sent to DVB server.
In step S400, described DVB server receives the request of described broadcasting channel, judge the type of described broadcasting channel, if described broadcasting channel is audio/video program, audio, video data corresponding to described broadcasting channel filtered, demultiplexing and segmentation are multiplexing, and are sent to described terminal and play; If described broadcasting channel is graphic program, to download the image, text and data that described graphic program is corresponding, and send home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address.
Specifically, DVB server is after the request that receives described broadcasting channel, judge the type of described broadcasting channel, that is to say when user wants the channel type of broadcasting to be audio/video program, starting audio frequency and video filter filters audio, video data corresponding to described broadcasting channel, send the real time streaming transport protocol address of audio/video flow, being RTSP(Real Time Streaming Protocol) audio/video flow address is to terminal, and by filter after audio, video data carry out demultiplexing and segmentation multiplexing after, being sent to terminal plays, thereby realized in terminal, the audio/video program in DVB business is play.And in the time that described broadcasting channel is graphic program, download the image, text and data that described graphic program is corresponding, and send home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address, thereby realized in terminal, the graphic program in DVB business is play.
Further, refer to Fig. 2, Fig. 2 is the method flow diagram of playing audio/video programs in the method for terminal plays DVB business provided by the invention, and as shown in the figure, described step S400 specifically comprises:
S410, in the time that described broadcasting channel is audio/video program, starts audio frequency and video filters described audio, video data is filtered, and the real time streaming transport protocol address that sends audio/video flow is to described terminal;
S420, to the demultiplexing respectively of the audio frequency and video TS stream after filtering, the audio frequency and video TS stream after demultiplexing is carried out to fragmented storage take video I frame as gauge point;
S430, that the data of fragmented storage are carried out to segmentation is multiplexing, is repackaged into TS stream, and is sent to described terminal and plays.
Specifically, use the mode of xml to send the information of audio/video flow address and current playing program for audio/video program.For audio/video program, because a frequency comprises several roads channel conventionally, give in advance the identify label (channel id) of the channel that each channel fix is corresponding, audio, video data is in the time sending terminal to, the channel id importing into according to terminal filters successively to the audio, video data of corresponding channel, demultiplexing, segmentation is multiplexing.In order to realize the real-time broadcasting of the multiple client terminals of audio frequency and video, the present invention has designed a set of circular buffering mechanism, this machine-processed data handling procedure is specially: to the audio frequency and video TS stream demultiplexing respectively of collecting, audio/video flow after demultiplexing starts to carry out fragmented storage as gauge point take video I frame, the displaying time stamp (PTS) of mark audio/video frames, for the invalid situation of PTS, use current program clock reference (PCR) value to proofread and correct, then fragmented storage audio/video frames is repackaged into TS stream.And when reaching some, TS flow point section stored number will from circulation, delete.Starting point using I frame as segmentation can avoid video beginning to occur mosaic in sending to terminal.In the program of SD or high definition, take I frame as interval, each segmentation can not exceed 500ms, and the theoretical maximum delay of terminal plays is 500ms, like this user can not feel to watch audio/video program not smooth.The present invention is only to audio/video frames segmentation and again multiplexing, with SD 3-5Mbps, high definition 13-18Mbps, the Ethernet 100Mbps of family can carry multiplex terminal completely and play, do not affect network speed, do not affect the resolution of program, contrast wireless biography screen technical transmission code check relatively little yet yet.
Further, described step, in the time that described broadcasting channel is graphic program, is downloaded the image, text and data that described graphic program is corresponding, and sends home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address, also comprises:
When described graphic program is during across frequency program, by corresponding string searching DVB protocol header, according to the address format of DVB standard definition, obtain network identity, transmission traffic identifier and program identification in address, the identify label of obtaining channel by described network identity, transmission traffic identifier and program identification in electric program menu data, converts corresponding self defined interface address to raw address;
Described self defined interface address is sent to described terminal, and described terminal is play described image, text and data according to self defined interface address.
Specifically, for graphic program, generally realize by the mode of html+css+js, common program does not need transcoding after having downloaded, terminal can be obtained by hypertext transfer protocol agreement (http) mode, send the address of this channel homepage to described terminal, described terminal is play described image, text and data according to home address, thereby has realized terminal plays graphic program.But when described graphic program is during across frequency program, if jump to the business of another one frequency, because the agreement of DVB type does not have viewed device compatibility, the redirect mark in HTML (html) need to clearly be encoded to certain DVB address, as: dvb: //.The present invention is to such business recompile, by string searching dvb: // protocol header, according to the address format of DVB standard definition, obtain network identity, transmission traffic identifier and program identification in address, then in EPG data, obtain the channelid of channel by these three parameters.Be http://ip:port/channelid by replacing to corresponding self defined interface address across raw address corresponding to frequency program again.Described self defined interface address is sent to described terminal, and described terminal is play described image, text and data according to self defined interface address.
Further, refer to Fig. 3, Fig. 3 is the flow chart of method second embodiment of terminal plays DVB business provided by the invention, and as shown in Figure 3, the method for described terminal plays DVB business also comprised before described step S100:
The operational order that S80, terminal receive user sends the request of searching for channel information corresponding to DVB business to DVB server;
S90, described DVB server, according to the searching request of described terminal, are collected the programme information corresponding to DVB business of current time, generate corresponding electric program menu data.
Specifically, the flow process of common machine top box, TV processing program searching is normally accepted user's request of remote controller mode of operation, and the present invention uses network mode to accept user's request, like this can mask program compatible multi-input device is (as remote controller, mouse) complexity, make calling program cross-platform, the ability of striding equipment is more powerful.In the process that realizes program searching, to main PSI(Program Specific Information, Program Specific Information)/SI(Service Information, business information) table collect order for NIT show (network information table)-->PAT shows (Program Association Table), and-->PMT shows (Program Map Table)-->SDT shows (SDT Service Description Table)--, and >EIT shows (Event Information Table).Conventionally the programme information that complete EPG comprises a week, it is larger that main programme information is included in the EIT table of multiple different TABLE ID data volume, for saving the time of search, the present invention only collects the programme information of current time in the process of search, namely only to EIT_PF_Actual, and the EIT of two types of EIT_PF_Other table collects, the EIT table of other types is collected on backstage.After the search of each frequency finishes, the Search Results of storage frequency, upgrades epg database.Check frequency search procedure for convenience of terminal, DVB server can be to the Search Results of each frequency as signal quality, channel, channel designation and channel type etc., be encoded into xml file, in receiving terminal request and checking Search Results, xml file corresponding this frequency issued to terminal.
Further, the operational order that described terminal receives user sends the request of searching for channel information corresponding to DVB business to DVB server, also comprise:
In the time that terminal reception user's manual search instruction sends the request of channel information corresponding to search DVB business to DVB server, the frequency of DVB server locking terminal request, receive by Program Specific Information filter the data that described frequency is corresponding, return to channel information corresponding to the current frequency of terminal, and upgrade channel information corresponding to electric program menu data;
In the time that terminal reception user's automatic search instruction sends the request of channel information corresponding to search DVB business to DVB server, DVB server obtains the main frequency point information in automatic configuration item, locking dominant frequency point, collect network information table and obtain the network information, first frequency in the list of locking dominant frequency point, receive described data corresponding to first frequency by Program Specific Information filter, return to the channel information of current frequency to terminal, judge whether the frequency in the list of dominant frequency point is searched for complete, if search for complete channel information corresponding to electric program menu data that upgrade, continue search if search for not complete second frequency returning in the list of locking dominant frequency point, until search for complete,
In the time that terminal reception user's full range search instruction sends the request of channel information corresponding to search DVB business to DVB server, DVB server starts locked frequency point from frequency 88MHZ, receive by Program Specific Information filter the data that described frequency is corresponding, return to the channel information of current frequency to terminal, on the basis of described frequency 88MHZ, each 8MHZ of increasing continues search, until the frequency of frequency exceedes 860MHZ, upgrade channel information corresponding to electric program menu data.
In the time of practical application, in the time that the request of terminal transmitter top box is manual search, Set Top Box receives searching request, stop all tasks of asking before user, according to the frequency of terminal request, call corresponding module interface and lock this frequency, then return to locking frequency point state to terminal.Then locking frequency point success sets Program Specific Information (PSI) filter and receives data, and the data of receiving are reorganized.Return to the information such as the channel designation of current frequency to terminal, and inquire whether user preserves.Terminal receives the order of preserving frequency point data, is sent to Set Top Box.Set Top Box is upgraded the information of the corresponding channel of EPG, completes search procedure.
In the time that the request of terminal transmitter top box is automatic search, set-top-box system receives searching request, stops all tasks of asking before user.Set Top Box is obtained the main frequency point information in automatic configuration item, and locking dominant frequency point, collects network information table (NIT table) and obtain the network information, first frequency in the list of locking dominant frequency point, and set PSI filter reception data, the data of receiving are reorganized.Return to the information such as the channel designation of current frequency to terminal.Judge whether frequency in the list of dominant frequency point is searched for completely, if complete, has searched for, whether save data of inquiry user.If not complete, rapid continuation searched for, until the frequency in the list of dominant frequency point is searched complete.After search is complete, terminal receives the order of preserving frequency point data, is sent to Set Top Box.Set Top Box is upgraded the information of the corresponding channel of EPG, completes search procedure.
In the time when the request of terminal transmitter top box being full range search, set-top-box system receives searching request, stop all tasks of asking before user, from frequency, 88MHZ starts locked frequency point, set PSI filter and receive data, the data of receiving are reorganized, the information such as channel designation of returning to current frequency to terminal then increases 8MHZ at every turn, continues locked frequency point, continue search, the frequency of knowing frequency exceedes 860MHZ, and search completes, whether save data of inquiry user, if terminal receives the order of preserving frequency point data, be sent to Set Top Box.Set Top Box is upgraded the information of the corresponding channel of EPG, completes search procedure.
The method of terminal plays DVB business provided by the invention, business network DVB being transmitted by terminal equipment, the business of can accomplishing is across screen application, that is to say and can user can use mobile phone at home, computer, watches ordinary tv programme in flat-panel devices, graphic program, webpage etc., this technological expansion DVB network watch the approach of TV, meet the demand of different user.Compare with existing similar IPTV technology, this technical program is clear, there is no time delay, and is not subject to the impact of communication network, and it is convenient greatly to have brought to user.
Based on the method for above-mentioned terminal plays DVB business, the present invention also provides a kind of system of terminal plays DVB business, refer to Fig. 4, Fig. 4 is the structured flowchart of system first embodiment of terminal plays DVB business provided by the invention, as shown in Figure 4, the system of described terminal plays DVB business comprises: terminal 100 and DVB server 200;
Described terminal 100 comprises:
Request sending module 110, sends the request of obtaining channel information corresponding to DVB business for the operational order that receives user to DVB server, and sends the request of broadcasting channel to DVB server for receiving user's operational order;
Described DVB server 200 comprises:
Request receiving module 210, for the request of obtaining channel information described in receiving, and for receiving the request of described broadcasting channel;
Further, refer to Fig. 5, Fig. 5 is the structured flowchart of type judging module in the system of terminal plays DVB business provided by the invention, and described type judging module 230 comprises:
Type judging unit 231, for judging that the type of described broadcasting channel is audio/video program or graphic program;
Audio/video program filter element 232, in the time that described broadcasting channel is audio/video program, starts audio frequency and video filter described audio, video data is filtered, and the real time streaming transport protocol address that sends audio/video flow is to described terminal;
Graphic program processing unit 235, for in the time that described broadcasting channel is graphic program, download the image, text and data that described graphic program is corresponding, and send home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address.
Further, refer to Fig. 6, Fig. 6 is the structured flowchart of system second embodiment of terminal plays DVB business provided by the invention, as shown in the figure, in system second embodiment of terminal plays DVB business provided by the invention, described request sending module 110, also sends the request of channel information corresponding to search DVB business to DVB server for receiving user's operational order;
Described DVB server 2000 also comprises:
Electric program menu data generation module 240, for according to the searching request of described terminal, collects the programme information corresponding to DVB business of current time, generates corresponding electric program menu data.
Described terminal 100 comprises mobile phone, flat-panel devices and personal computer etc.; Described DVB server 200 comprises Set Top Box and TV etc.
In sum, the method of a kind of terminal plays DVB business provided by the invention and system thereof, in the time that described broadcasting channel is audio/video program, filter audio, video data corresponding to described broadcasting channel, demultiplexing and segmentation are multiplexing, and are sent to described terminal and play; In the time that described broadcasting channel is graphic program, to download the image, text and data that described graphic program is corresponding, and send home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address; Thereby realize and in terminal, play DVB business, meet the audio frequency and video of DVB standard by acceptance, the data such as photo information, process is to after decoding data, local area network (LAN) use http, rtsp agreement distributing data to local area network (LAN) in the software systems of different screen terminal, solved present stage DVB audio frequency and video business unintelligible by IP mode Program Transport, time delay is large, easily card and solve other business of present stage DVB such as problem that EPG cannot use in terminal.
The business network that the present invention is transmitted DVB by terminal equipment, the business of can accomplishing is across screen application, that is to say and can user can use mobile phone at home, computer, in flat-panel devices, watch ordinary tv programme, graphic program, webpage etc., this technological expansion DVB network watch the approach of TV, meet the demand of different user.Compare with existing similar IPTV technology, this technical program is clear, there is no time delay, and is not subject to the impact of communication network, and it is convenient greatly to have brought.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (10)
1. a method for terminal plays DVB business, is characterized in that, comprises the following steps:
The operational order that terminal receives user sends the request of obtaining channel information corresponding to DVB business to DVB server;
The request of obtaining channel information described in described DVB server receives, the electric program menu data the recompile that obtain DVB business become corresponding extensible markup language document, send to described terminal;
Described terminal shows the electric program menu data of described DVB business, and the operational order that receives user sends the request of broadcasting channel to DVB server;
Described DVB server receives the request of described broadcasting channel, judge the type of described broadcasting channel, if described broadcasting channel is audio/video program, audio, video data corresponding to described broadcasting channel filtered, demultiplexing and segmentation are multiplexing, and are sent to described terminal and play; If described broadcasting channel is graphic program, to download the image, text and data that described graphic program is corresponding, and send home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address.
2. the method for terminal plays DVB business according to claim 1, is characterized in that, before terminal reception user's operational order sends the request of obtaining channel information corresponding to DVB business to DVB server, also comprises:
The operational order that terminal receives user sends the request of searching for channel information corresponding to DVB business to DVB server;
Described DVB server, according to the searching request of described terminal, is collected the programme information corresponding to DVB business of current time, generates corresponding electric program menu data.
3. the method for terminal plays DVB business according to claim 1, is characterized in that, in the time that described broadcasting channel is audio/video program, audio, video data corresponding to described broadcasting channel filtered, demultiplexing and segmentation are multiplexing, and are sent to described terminal and play, and specifically comprise:
In the time that described broadcasting channel is audio/video program, start audio frequency and video filter described audio, video data is filtered, and the real time streaming transport protocol address that sends audio/video flow is to described terminal;
To the audio frequency and video TS stream demultiplexing respectively after filtering, the audio frequency and video TS stream after demultiplexing is started to carry out fragmented storage as gauge point take video I frame;
The data of fragmented storage are carried out to segmentation multiplexing, be repackaged into TS stream, and be sent to described terminal and play.
4. the method for terminal plays DVB business according to claim 3, is characterized in that, the audio frequency and video TS after demultiplexing is flowed take video I frame as gauge point carries out fragmented storage, specifically comprises:
Audio frequency and video TS stream after demultiplexing is carried out to fragmented storage take video I frame as gauge point, and the displaying time stamp of mark audio/video frames, when displaying time stabs when invalid, uses current program clock reference value to proofread and correct;
When reaching some, TS flow point section stored number will from circulation, delete.
5. the method for terminal plays DVB business according to claim 1, it is characterized in that, in the time that described broadcasting channel is graphic program, download the image, text and data that described graphic program is corresponding, and send home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address, also comprises:
When described graphic program is during across frequency program, by corresponding string searching DVB protocol header, according to the address format of DVB standard definition, obtain network identity, transmission traffic identifier and program identification in address, the identify label of obtaining channel by described network identity, transmission traffic identifier and program identification in electric program menu data, converts corresponding self defined interface address to raw address;
Described self defined interface address is sent to described terminal, and described terminal is play described image, text and data according to self defined interface address.
6. the method for terminal plays DVB business according to claim 2, is characterized in that, the operational order that terminal receives user sends the request of searching for channel information corresponding to DVB business to DVB server, also comprise:
In the time that terminal reception user's manual search instruction sends the request of channel information corresponding to search DVB business to DVB server, the frequency of DVB server locking terminal request, receive by Program Specific Information filter the data that described frequency is corresponding, return to channel information corresponding to the current frequency of terminal, and upgrade channel information corresponding to electric program menu data;
In the time that terminal reception user's automatic search instruction sends the request of channel information corresponding to search DVB business to DVB server, DVB server obtains the dominant frequency point list information in automatic configuration item, collect network information table and obtain the network information, first frequency in the list of locking dominant frequency point, receive described data corresponding to first frequency by Program Specific Information filter, return to the channel information of the current frequency of terminal, judge whether the frequency in the list of dominant frequency point is searched for complete, if search for complete channel information corresponding to electric program menu data that upgrade, continue search if search for not complete second frequency returning in the list of locking dominant frequency point, until search for complete,
In the time that terminal reception user's full range search instruction sends the request of channel information corresponding to search DVB business to DVB server, DVB server starts locked frequency point from frequency 88MHZ, receive by Program Specific Information filter the data that described frequency is corresponding, return to the channel information of the current frequency of terminal, on the basis of described frequency 88MHZ, each 8MHZ of increasing continues search, until the frequency of frequency exceedes 860MHZ, upgrade channel information corresponding to electric program menu data.
7. a system for terminal plays DVB business, comprises terminal and DVB server, it is characterized in that,
Described terminal comprises:
Request sending module, sends the request of obtaining channel information corresponding to DVB business for the operational order that receives user to DVB server, and sends the request of broadcasting channel to DVB server for receiving user's operational order;
Display module, for showing the electric program menu data of described DVB business, and audio, video data and image, text and data corresponding to graphic program for showing that audio/video program is corresponding;
Described DVB server comprises:
Request receiving module, for the request of obtaining channel information described in receiving, and for receiving the request of described broadcasting channel;
Coding module, becomes corresponding extensible markup language document for the electric program menu data the recompile that obtain DVB business, sends to described terminal;
Type judging module, for judging the type of described broadcasting channel, if described broadcasting channel is audio/video program, filters audio, video data corresponding to described broadcasting channel, and demultiplexing and segmentation are multiplexing, and is sent to described terminal and plays; If described broadcasting channel is graphic program, to download the image, text and data that described graphic program is corresponding, and send home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address.
8. the system of terminal plays DVB business according to claim 7, is characterized in that, described request sending module also sends the request of channel information corresponding to search DVB business to DVB server for receiving user's operational order;
Described DVB server also comprises:
Electric program menu data generation module, for according to the searching request of described terminal, collects the programme information corresponding to DVB business of current time, generates corresponding electric program menu data.
9. the system of terminal plays DVB business according to claim 7, is characterized in that, described type judging module comprises:
Type judging unit, for judging that the type of described broadcasting channel is audio/video program or graphic program;
Audio/video program filter element, in the time that described broadcasting channel is audio/video program, starts audio frequency and video filter described audio, video data is filtered, and the real time streaming transport protocol address that sends audio/video flow is to described terminal;
Demultiplexing unit, for the audio frequency and video TS stream demultiplexing respectively to after filtering, carries out fragmented storage to the audio frequency and video TS stream after demultiplexing take video I frame as gauge point;
Segmentation Multiplexing Unit, multiplexing for the data of fragmented storage are carried out to segmentation, be repackaged into TS stream, and be sent to described terminal and play;
Graphic program processing unit, for in the time that described broadcasting channel is graphic program, download the image, text and data that described graphic program is corresponding, and send home address that described graphic program is corresponding to described terminal, described terminal is play described image, text and data according to home address.
10. the system of terminal plays DVB business according to claim 7, is characterized in that, described terminal comprises mobile phone, flat-panel devices and personal computer; Described DVB server comprises Set Top Box and TV.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104902311A (en) * | 2015-05-28 | 2015-09-09 | 青岛海信宽带多媒体技术有限公司 | Method for sharing audio/video resources, shared gateway and system |
| CN106773866A (en) * | 2017-01-04 | 2017-05-31 | 深圳市满泰科技发展有限公司 | The system and application process of a kind of utilization short message remote control water conservancy equipment operation |
| CN108156486A (en) * | 2016-12-05 | 2018-06-12 | 中兴通讯股份有限公司 | Sharing method and device, home media equipment is broadcast live |
| CN108366289A (en) * | 2018-01-08 | 2018-08-03 | 山东浪潮商用系统有限公司 | A kind of EPG information acquisition methods and system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1152572C (en) * | 1999-05-20 | 2004-06-02 | 居金安 | High-speed multimedia data broadcasting system |
| CN100551063C (en) * | 2006-11-30 | 2009-10-14 | 中兴通讯股份有限公司 | The method that a kind of multimedia broadcasting (DMB) channels is play fast |
| CN101296374B (en) * | 2008-05-28 | 2011-11-09 | 华为终端有限公司 | Method and device for acquiring electronic program guide information |
| CN103067771A (en) * | 2013-01-21 | 2013-04-24 | 北京佳视互动科技股份有限公司 | Digital set top box and operating method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104902311A (en) * | 2015-05-28 | 2015-09-09 | 青岛海信宽带多媒体技术有限公司 | Method for sharing audio/video resources, shared gateway and system |
| CN104902311B (en) * | 2015-05-28 | 2019-03-01 | 青岛海信宽带多媒体技术有限公司 | A kind of shared method of audio and video resources, shared gateway and system |
| CN108156486A (en) * | 2016-12-05 | 2018-06-12 | 中兴通讯股份有限公司 | Sharing method and device, home media equipment is broadcast live |
| CN106773866A (en) * | 2017-01-04 | 2017-05-31 | 深圳市满泰科技发展有限公司 | The system and application process of a kind of utilization short message remote control water conservancy equipment operation |
| CN108366289A (en) * | 2018-01-08 | 2018-08-03 | 山东浪潮商用系统有限公司 | A kind of EPG information acquisition methods and system |
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| CN103905838B (en) | 2017-02-22 |
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