CN202009471U - Streaming media edge adapter device based on DVB transmission - Google Patents
Streaming media edge adapter device based on DVB transmission Download PDFInfo
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- CN202009471U CN202009471U CN2011201139174U CN201120113917U CN202009471U CN 202009471 U CN202009471 U CN 202009471U CN 2011201139174 U CN2011201139174 U CN 2011201139174U CN 201120113917 U CN201120113917 U CN 201120113917U CN 202009471 U CN202009471 U CN 202009471U
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Abstract
The utility model discloses a streaming media edge adapter device based on DVB (Digital Video Broadcasting) transmission, which comprises a DVB tuner, an audio/video packaging format conversion module, a streaming media protocol conversion module and a standard wireless router module. The DVB tuner, the audio/video packaging format conversion module, the streaming media protocol conversion module and the standard wireless router module are connected in turn, wherein the DVB tuner is used for converting a digital television program signal into a TS (Transport Stream) data stream; the audio/video packaging format conversion module is used for converting a data format of a packaged data stream; the streaming media protocol conversion module is used for converting a data transmission mode after being packaged and transmitting the converted data transmission mode to the standard wireless router module; and the standard wireless router module is used for sending a streaming media transmission data to a terminal device. Under the condition of being free from reforming or paving a wired television signal cable, the streaming media edge adapter device based on DVB transmission can be used for automatically converting a packaging format of audio/video and a streaming media transmission protocol, so that a high-quality and low-cost digital television program can be received by all terminals in a local area network.
Description
Technical field
The utility model relates to a kind of Streaming Media edge adapter apparatus based on the DVB transmission, belong to the multimedia transmission technical field, be particularly related to a kind of to Streaming Media Terminal Type based on DVB digital television broadcasting net, comprise dissimilar handheld devices such as computer, mobile phone, device low-cost, high-quality video program data is provided.
Background technology
Along with integration of three networks application and development, the application between internet and the DVB digital TV broadcasting network is interosculated and permeated is one of them important developing direction.In actual applications, internet and DVB digital TV network also can interconnect on backbone network, on PC equipment, watch high-quality digital television program to obtain good application, and cellphone subscriber's quantity is far above the TV user number, and handheld device has to be used flexibly, advantage such as easy to carry, therefore watch digital television program will become a kind of trend by radio hand-held equipment, in the face of a kind of like this trend, each operator has also released various solutions, on existing market, watch the application model of TV programme to mainly contain following two kinds by hand-held terminal device:
See TV and various video by handheld device, network speed, picture quality and watch cost to become the most key problem, perfect mobile TV service can be provided, make by handheld device and see that TV accomplishes real inexpensively, will become the winner in the market.
The utility model content
The utility model is at the above-mentioned technical issues that need to address, a kind of Streaming Media edge adapter apparatus based on the DVB transmission is provided, insert by transmission channel and the WIFI that uses the net of DVB digital television broadcasting cheaply, can be according to dissimilar terminal uses' difference request, the TS flow data is carried out transcoding, changes encapsulation, is distributed to corresponding handheld terminal user after changeing agreement, for all kinds of terminal uses provide high-quality, TV programme cheaply.The edge adapter is meant the adapter of being close to the users, and can make the user obtain the adapter of good experience, such as the home adaptation device.
The utility model provides a kind of Streaming Media edge adapter apparatus based on the DVB transmission, comprise the DVB tuner, audio frequency and video encapsulation format modular converter, stream media protocol modular converter and standard radio router-module, the DVB tuner, audio frequency and video encapsulation format modular converter, the stream media protocol modular converter is connected successively with the standard radio router-module, the input that is described audio frequency and video encapsulation format modular converter is connected with described DVB tuner, the output of audio frequency and video encapsulation format modular converter is connected with described stream media protocol modular converter, and the output of described stream media protocol modular converter is connected with the standard radio router-module.Described DVB tuner changes into the TS data flow with the digital television program signal, described audio frequency and video encapsulation format modular converter receives described TS data flow, and export to described stream media protocol modular converter with TS data flow conversion and after being encapsulated as the corresponding data form, the data transfer mode that described stream media protocol modular converter will encapsulate the back One-to-All Broadcast is converted to the transmission of flow media data mode that terminal equipment is supported, be transmitted to described standard radio router-module, described standard radio router-module is to terminal equipment transport stream media delivery data.On terminal equipment, can finish the broadcast of digital television program and watch.
Described DVB tuner is DVB-C, DVB-S or DVB-T type tuner.The television program video flow data that DVB tuner receiving digital television broadcast network transmission is come is transcoded into MPEG2 or the stream of TS H.264.
Described audio frequency and video encapsulation format modular converter comprises data demultiplexing module, program forwarding module, TS encapsulation conversion submodule, MP4 encapsulation conversion submodule, 3GP encapsulation conversion submodule and FLV encapsulation conversion submodule, and data demultiplexing module partition TS data flow is to be transferred to the program forwarding module behind the single program data stream; It is to be transmitted to TS encapsulation conversion submodule, MP4 encapsulation conversion submodule, 3GP encapsulation conversion submodule or FLV encapsulation conversion submodule by the terminal equipment call format behind video and the voice data that the program forwarding module splits single program data stream; TS encapsulation conversion submodule is encapsulated as the TS data format with video and voice data; MP4 encapsulation conversion submodule just video and voice data is encapsulated as the MP4 data format; 3GP encapsulation conversion submodule is encapsulated as the 3GP data format with video and voice data; FLV encapsulation conversion submodule is encapsulated as the FLV data format with video and voice data.Because the needed data format difference of different terminal equipment, the video/audio data forwarding after then the program forwarding module will break according to different needs are changed the conversion of carrying out data format in the submodule to different encapsulation.When being the IPAD of apple such as terminal equipment, it can directly accept the TS data flow, and then the program forwarding module just encapsulates the conversion submodule with data forwarding to TS.
Described data demultiplexing module comprises a TS demultiplexing equipment, and the digital TV TS stream that is used for receiving is divided into single program stream.
Described program forwarding module comprises a program forwarding unit, transmits corresponding program according to the demand of terminal equipment and flows to TS encapsulation conversion submodule, MP4 encapsulation conversion submodule, 3GP encapsulation conversion submodule or FLV encapsulation conversion submodule.
After above-mentioned four conversion submodules dynamically convert the TS encapsulation format encapsulation format such as to the required TS of terminal equipment, MP4,3GP, FLV according to the requirement of program forwarding module, export to described stream media protocol modular converter.
Described stream media protocol modular converter comprises agreement chooser module, HTTP Streaming Media release module, MMS Streaming Media release module, rtp streaming media releasing module and FMS Streaming Media release module, and agreement chooser module is transferred to HTTP Streaming Media release module, MMS Streaming Media release module, rtp streaming media releasing module or FMS Streaming Media release module through the video of format conversion and voice data by the Streaming Media distribution protocol requirement of terminal equipment with One-to-All Broadcast; The transmission means of the data that the conversion of HTTP Streaming Media release module receives is HTTP stream media protocol transmission means and is distributed to the standard radio router-module; The transmission means of the data that the conversion of MMS Streaming Media release module receives is MMS stream media protocol transmission means and is distributed to the standard radio router-module; The transmission means of the data that the conversion of rtp streaming media releasing module receives is rtp streaming media protocol transmission means and is distributed to the standard radio router-module; The transmission means of the data that the conversion of FMS Streaming Media release module receives is FMS stream media protocol transmission means and is distributed to the standard radio router-module.Agreement chooser module can be according to the stream media protocol parameter demand of terminal equipment support, convert the transmission of flow media data mode of One-to-All Broadcast to HTTP, RTP, stream media protocol transmission meanss such as MMS, FMS that terminal equipment is supported, export to described standard radio router-module.
Described standard radio router-module is connected with terminal equipment by the WIFI local area network (LAN), and the transmission data are given terminal equipment.
The core of this device scheme is with the MPEG2 or the digital television program of the DVB digital TV broadcasting network of standard packaging H.264, is converted to the IP traffic that the hand-held terminal device of supporting all kinds, brand uses, and is distributed to as required on each terminal and uses.The mode that this device scheme combines with WIFI by DVB digital television broadcasting passage, set up the TS flow data of an audio frequency and video encapsulation format modular converter with the DVB digital television program, data format parameter demand according to terminal equipment dynamically is converted to encapsulation format such as the required TS of terminal equipment, MP4,3GP, FLV, exports to described stream media protocol modular converter; The stream media protocol parameter demand that the stream media protocol modular converter is supported according to terminal equipment, HTTP, the RTP, the stream media protocol modes such as MMS, FMS that the transmission of flow media data mode of One-to-All Broadcast are converted to the terminal equipment support are transmitted, output to the WIFI local area network (LAN), according to the playing request of each terminal in the local area network (LAN), stream medium data form and the host-host protocol selecting to be fit to this terminal equipment use arrive each terminal with the corresponding digital distribution of television programs.
According to the described device scheme of the utility model, by the digital television program data of DVB digital television broadcasting net transmission being changeed encapsulation, changeing agreement, utilize WLAN (wireless local area network) to be distributed to terminal equipment, make all types of terminals in the local area network (LAN) can both watch high-quality, digital television program cheaply.
Compare with prior art, advantage of the present utility model is:
Streaming Media edge adapter apparatus based on the DVB transmission of the present utility model possesses audio frequency and video encapsulation format modular converter and stream media protocol modular converter.By mutual with shaking hands of terminal equipment, obtain the Streaming Media access parameter information that terminal equipment is supported in advance, automatically change the encapsulation format and the Streaming Media host-host protocol of audio frequency and video, and adopt the wireless router module to carry out data and transmit by the WIFI local area network (LAN), reach the purpose that adapts to different types of terminals equipment, terminal does not need to enter Internet, and it is convenient to insert, and can watch at any time.Thereby with the DVB digital television program from the set-top box termination extension to computer, hand-held kind equipment, provide high-quality, stable content of TV program by DVB radio network cheaply, the wireless router of dependence standard is connected with terminal equipment, do not increase the cost that terminal equipment inserts, according to the parameter request of different terminal equipments the encapsulation format and the host-host protocol of Streaming Media carried out dynamic translation, adapt to polytype terminal equipment and insert.This system is fit to roughly 50 users, terminal environments in the wireless local the Internet of space size in 50 meters scopes, do not need to transform or lay DVB cable TV signal cable and radio local network environment, have easy to use, cost of access is low, the removable access of terminal, is easy in advantages such as hot zones popularize.
Description of drawings
Fig. 1 is the structural representation of the Streaming Media edge adapter apparatus based on DVB transmission of the present utility model;
Fig. 2 is the structural representation of the audio frequency and video encapsulation format modular converter among Fig. 1;
Fig. 3 is the structural representation of the stream media protocol modular converter among Fig. 1;
Fig. 4 is the fundamental diagram of the wireless router module among Fig. 1;
Embodiment
The utility model will be further described below by specific embodiments and the drawings.
The Streaming Media edge adapter apparatus based on DVB transmission in this example receives the cable tv broadcast signal, with the TS data circulation encapsulation of digital television program, change a plurality of dissimilar wireless handheld terminal that is distributed to as required after the agreement in the WLAN.It is made up of 4 main modular: DVB tuner, audio frequency and video encapsulation format modular converter, stream media protocol modular converter and standard radio router-module, these four modules connect successively.The DVB tuner changes into the TS data flow with the signal of digital television program and exports to audio frequency and video encapsulation format modular converter, audio frequency and video encapsulation format modular converter receives the TS data flow and converts the TS encapsulation format to different types of terminal equipment required TS, MP4, behind the encapsulation format such as 3GP or FLV, export to the stream media protocol modular converter, the stream media protocol modular converter converts the transmission of flow media data mode of One-to-All Broadcast to HTTP that terminal equipment is supported, RTP, MMS, stream media protocol transmission meanss such as FMS, be connected with terminal equipment by described standard radio router-module, digital television program is sent to each terminal.As shown in Figure 1.
Described DVB tuner is DVB-C, DVB-S or DVB-T type tuner, the model of tuner is determined according to the type of DVB digital television broadcasting net, cable television network adopts DVB-C, the satellite television net adopts DVB-S, terrestrial broadcast network adopts DVB-T, the high-frequency signal of DVB tuner receiving digital television broadcast net, demodulation output digital signal is exported to audio frequency and video encapsulation format modular converter with MPEG2 or TV programme TS stream H.264.
Described audio frequency and video encapsulation format modular converter receives MPEG2 or digital television program TS data flow H.264, and dynamic parameter demand according to terminal plays equipment, after converting the audio/video flow of TS encapsulation format the audio/video flow of encapsulation format such as the required TS of terminal equipment, MP4,3GP, FLV to, export to described stream media protocol modular converter.
Referring to Fig. 2, described audio frequency and video encapsulation format modular converter comprises data demultiplexing module, program forwarding module, TS encapsulation conversion submodule, MP4 encapsulation conversion submodule, 3GP encapsulation conversion submodule and FLV encapsulation conversion submodule.Data demultiplexing module partition TS data flow is to be transferred to the program forwarding module behind the single program data stream; It is to be transmitted to TS encapsulation conversion submodule, MP4 encapsulation conversion submodule, 3GP encapsulation conversion submodule or FLV encapsulation conversion submodule by the terminal equipment call format behind video and the voice data that the program forwarding module splits single program data stream; TS encapsulation conversion submodule, MP4 encapsulation conversion submodule, 3GP encapsulation conversion submodule or FLV encapsulation conversion submodule are converted to corresponding TS, MP4,3GP and FLV encapsulation format with video and the voice data that receives.
The data demultiplexing module comprises a TS demultiplexing equipment.It is single program data stream that this equipment is used to split the TS data flow.
The stream media protocol parameter demand that described stream media protocol modular converter is supported according to terminal equipment, convert the transmission of flow media data mode of One-to-All Broadcast to HTTP, the RTP of terminal equipment support, the stream media protocol transmission means of two-way interactives such as MMS, FMS, export to described standard radio router-module.
Referring to Fig. 3, described stream media protocol modular converter comprises changes protocol module, HTTP Streaming Media release module, rtp streaming media releasing module, MMS Streaming Media release module and FMS Streaming Media release module, and the host-host protocol of the data based terminal equipment support that the commentaries on classics protocol module will receive requires to be transmitted to HTTP Streaming Media release module, rtp streaming media releasing module, MMS Streaming Media release module or FMS Streaming Media release module.
Described agreement chooser module receives the program stream that audio frequency and video encapsulation format modular converter sends, and according to the stream media protocol information of terminal equipment, selects different Streaming Media host-host protocols to carry out the transmission of program stream.
Described HTTP Streaming Media release module is HTTP host-host protocol and issue with the stream media protocol information translation of encapsulation of data.
Described rtp streaming media releasing module is RTP host-host protocol and issue with the stream media protocol information translation of encapsulation of data.
Described MMS Streaming Media release module is MMS host-host protocol and issue with the stream media protocol information translation of encapsulation of data.
Described FMS Streaming Media release module is FMS host-host protocol and issue with the stream media protocol information translation of encapsulation of data.
Described standard radio router-module is connected with terminal equipment by the WIFI local area network (LAN), and the transmission data are given the terminal handheld device.
Digital program signal with limited Television Broadcasting Network is an example below, and the concrete operation principle of Streaming Media edge adapter apparatus based on the DVB transmission of the present utility model is described, and is as follows:
The node place of registering one's residence in the terminal area is connected to the cable tv broadcast net, receive the digital television program TS flow data that transmits on a plurality of frequencies, the TS flow data is changeed encapsulation, changes after the agreement by a wireless routing device and be distributed to each terminal in the WLAN (wireless local area network) dynamically.
Audio frequency and video encapsulation format modular converter workflow is described in detail as follows:
(1) after the data demultiplexing module in the audio frequency and video encapsulation format modular converter receives the MPEG2 or the stream of cable TV TS H.264 that sends from the DVB tuner, TS stream is split, be split as independent program data.
(2) facility information that sends according to user terminal of the program forwarding module in the audio frequency and video encapsulation format modular converter requires dynamically video data in the program stream and voice data to be transferred to TS, MP4,3GP or FLV encapsulation modular converter respectively according to the data format of terminal equipment.
(3) audio frequency and video encapsulation format modular converter is exported to the stream media protocol modular converter with packaged again program stream data, promptly according to the data format requirement of terminal equipment, TS, MP4,3GP or FLV encapsulation modular converter are converted to corresponding TS, MP4,3GP or FLV form with data and export to the stream media protocol modular converter.
The stream media protocol modular converter converts the transmission of flow media data mode of One-to-All Broadcast to HTTP, RTP, stream media protocol transmission meanss such as MMS, FMS that terminal equipment is supported, to satisfy the transfer of data demand of various flows media formats and different terminals type.Its workflow is described in detail as follows:
(1) after the stream media protocol modular converter receives and changes the encapsulated program streams data, is saved in the metadata cache window of 30 seconds size.
(2) when request data of watching that receive terminal are taken out from buffer window, change the facility information that protocol selection module sends according to terminal, dynamically with data delivery to corresponding Streaming Media release module.
(3) comprise protocol transmission modules such as HTTP Streaming Media release module, rtp streaming media releasing module, MMS Streaming Media release module, FMS Streaming Media release module in the stream media protocol modular converter, the program stream data that demanding terminal is watched outputs to wireless routing module by the corresponding protocol transport module.
The wireless router module links to each other with terminal equipment by the WIFI WLAN (wireless local area network), and being responsible for will be through changeing encapsulation format, and the program data that changes transmission protocol mode is transported to each wireless handheld terminal, and the broadcast of finishing program presents.Its module workflow is with reference to figure 4, and implementation procedure is described below in detail:
(1) facility information that sends over of receiving terminal apparatus is uploaded to stream media protocol modular converter and audio frequency and video encapsulation format modular converter.
(2) program stream data that transmits of receiving stream media protocol conversion module is exported to terminal equipment by WLAN (wireless local area network), as Ipad, mobile phone, PDA etc.
(3) wireless terminal device is play by built-in WIFI functional module program receiving flow data and realization.
Claims (8)
1. Streaming Media edge adapter apparatus based on DVB transmission, it is characterized in that comprising the DVB tuner, audio frequency and video encapsulation format modular converter, stream media protocol modular converter and standard radio router-module, the DVB tuner, audio frequency and video encapsulation format modular converter, the stream media protocol modular converter is connected successively with the standard radio router-module, the DVB tuner changes into the TS data flow with the digital television program signal, the data format of audio frequency and video encapsulation format modular converter conversion encapsulation TS data flow is also exported to the stream media protocol modular converter, the data transfer mode of the One-to-All Broadcast after the stream media protocol modular converter conversion encapsulation is the stream media protocol transmission means that terminal equipment is supported, and being forwarded to described standard radio router-module, described standard radio router-module sends Streaming Media and transmits data to terminal equipment.
2. the Streaming Media edge adapter apparatus based on the DVB transmission according to claim 1 is characterized in that described DVB tuner is DVB-C, DVB-S or DVB-T type DVB tuner.
3. the Streaming Media edge adapter apparatus based on the DVB transmission according to claim 1 is characterized in that the standard radio router-module is a standard radio router-module of supporting IEEE 802.11n/g agreement.
4. the Streaming Media edge adapter apparatus based on the DVB transmission according to claim 1, it is characterized in that audio frequency and video encapsulation format modular converter comprises data demultiplexing module, program forwarding module, TS encapsulation conversion submodule, MP4 encapsulation conversion submodule, 3GP encapsulation conversion submodule and FLV encapsulation conversion submodule, data demultiplexing module partition TS data flow is to be transferred to the program forwarding module behind the single program data stream; It is to be transmitted to TS encapsulation conversion submodule, MP4 encapsulation conversion submodule, 3GP encapsulation conversion submodule or FLV encapsulation conversion submodule behind video and the voice data that the program forwarding module splits program data stream; TS encapsulation conversion submodule is encapsulated as the TS data format with video and voice data; MP4 encapsulation conversion submodule just video and voice data is encapsulated as the MP4 data format; 3GP encapsulation conversion submodule is encapsulated as the 3GP data format with video and voice data; FLV encapsulation conversion submodule is encapsulated as the FLV data format with video and voice data.
5. the Streaming Media edge adapter apparatus based on the DVB transmission according to claim 4 is characterized in that described demultiplexing module is a TS demultiplexing equipment.
6. the Streaming Media edge adapter apparatus based on the DVB transmission according to claim 1, it is characterized in that described stream media protocol modular converter comprises agreement chooser module, HTTP Streaming Media release module, MMS Streaming Media release module, rtp streaming media releasing module and FMS Streaming Media release module, agreement chooser module is given HTTP Streaming Media release module, MMS Streaming Media release module, rtp streaming media releasing module or FMS Streaming Media release module by the Streaming Media distribution protocol requirement transmission of terminal equipment through the video and the voice data of Data Format Transform; The transmission means of the data that the conversion of HTTP Streaming Media release module receives is HTTP stream media protocol transmission means and is distributed to the standard radio router-module; The transmission means of the data that the conversion of MMS Streaming Media release module receives is MMS stream media protocol transmission means and is distributed to the standard radio router-module; The transmission means of the data that the conversion of rtp streaming media releasing module receives is rtp streaming media protocol transmission means and is distributed to the standard radio router-module; The transmission means of the data that the conversion of FMS Streaming Media release module receives is FMS stream media protocol transmission means and is distributed to the standard radio router-module.
7. the Streaming Media edge adapter apparatus based on the DVB transmission according to claim 1 is characterized in that described standard radio router-module transmits data by the WIFI local area network (LAN) and gives terminal equipment.
8. the Streaming Media edge adapter apparatus based on the DVB transmission according to claim 1 is characterized in that terminal equipment is a hand-held terminal device.
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| CN107770632A (en) * | 2017-10-17 | 2018-03-06 | 安徽广行通信科技股份有限公司 | The live broadcasting method that a kind of DVB/IP is combined |
| CN109347960A (en) * | 2018-10-26 | 2019-02-15 | 惠州Tcl移动通信有限公司 | The method of intelligent terminal file transmission, intelligent terminal, storage device |
| CN110708584A (en) * | 2019-10-30 | 2020-01-17 | 深圳城视互联科技有限公司 | Live television and multimedia information publishing system and method |
| WO2023029689A1 (en) * | 2021-09-06 | 2023-03-09 | 中兴通讯股份有限公司 | Multimedia data sharing method, media sharing server, terminal, electronic device, and computer-readable storage medium |
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