CN106559690A - The live method and system for throwing screen are realized based on multicast on a kind of intelligent television - Google Patents
The live method and system for throwing screen are realized based on multicast on a kind of intelligent television Download PDFInfo
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- CN106559690A CN106559690A CN201611033874.2A CN201611033874A CN106559690A CN 106559690 A CN106559690 A CN 106559690A CN 201611033874 A CN201611033874 A CN 201611033874A CN 106559690 A CN106559690 A CN 106559690A
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- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000012544 monitoring process Methods 0.000 claims description 10
- 238000005538 encapsulation Methods 0.000 claims description 6
- 238000003491 array Methods 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- 229940104697 arixtra Drugs 0.000 description 3
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
- H04N21/6405—Multicasting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/64322—IP
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses realizing the live method and system for throwing screen based on multicast on a kind of intelligent television, the method is comprised the following steps：S1, mobile client open multicast functionality, monitor udp port；Multicast functionality is opened at S2, TV service end, monitors multicast and broadcast and udp port；S3, mobile client send search command request to the IP address of multicast and broadcast in the form of multicast and broadcast；S4, TV service end send UDP acknowledgement commands to mobile client, and mobile client is parsed to which, obtains TV service end equipment list；The selection result of S5, mobile client receive user from TV service end equipment list, upon selection, mobile client sends throwing screen request in the form of UDP to the TV service end for selecting, TV service end to receive throw screen request carry out parsing obtain throw screen information, according to throw screen information in live TV stream address play out.The present invention can quickly realize throwing screen by way of multicast, and Consumer's Experience effect is good.
Description
Technical field
The present invention relates to intelligent television throws screen play-back technology field, more particularly to realized based on multicast on a kind of intelligent television
The live method and system for throwing screen.
Background technology
The live video played on mobile phone or flat board is shipped on intelligent television in prior art the side for showing and playing
There is certain defect in method, existing method includes the technologies such as DLNA agreements, AirPlay.Wherein DLNA agreements are Sony, Ying Te
A set of PC of the initiations such as that, Microsoft, the agreement interconnected between mobile device, consumer appliances, can by the photo in mobile phone,
Video etc. is shipped on giant-screen, it is also possible to remotely control.AirPlay is a kind of wireless technology of Fructus Mali pumilae exploitation, can be passed through
WiFi will wirelessly be transferred to support AirPlay equipment including picture, audio frequency, video on Fructus Mali pumilae equipment.
On the market these throw screen and control method great majority based on udp broadcast, and udp broadcast can not only send information to
Unwanted main frame and waste bandwidth, it is also possible to cause serious broadcast storm due to routeing winding.DLNA and AirPlay is in association
There is certain limitation in view, have compatibility issue on the intelligent television of part.
The content of the invention
The technical problem to be solved in the present invention is, for easy waste bandwidth in prior art, and easily to cause broadcast wind
Sudden and violent defect, there is provided the live method and system for throwing screen are realized based on multicast on a kind of intelligent television.
The technical solution adopted for the present invention to solve the technical problems is：
The present invention to be provided and realize the live method for throwing screen based on multicast on a kind of intelligent television, comprises the following steps：
S1, mobile client open multicast functionality, by IP address and the port of multicast and broadcast, mobile client addition group
Group is broadcast, and monitors udp port；
Multicast functionality is opened at S2, TV service end, by IP address and the port of multicast and broadcast, TV service end addition group
Group is broadcast, and monitors multicast and broadcast and udp port；
S3, mobile client send search command request to the IP address of multicast and broadcast in the form of multicast and broadcast；
S4, TV service end response search command request, send UDP acknowledgement commands, mobile client to mobile client
Which is parsed after receiving UDP acknowledgement commands, obtain TV service end equipment list；
The selection result of S5, mobile client receive user from TV service end equipment list, it is upon selection, mobile
Client to select TV service end is sent in the form of UDP throwing screen request, TV service end to receive throwing screen ask into
Row parsing obtains throwing screen information, according to the live TV stream address thrown in screen information, calls the player at TV service end to play out.
Further, the mobile client in the method for the present invention includes the handss of Android operation system and Apple Macintosh operating system
Machine and panel computer.
Further, in the method for the present invention IP address of the multicast and broadcast that mobile client and TV service end add and
Port is consistent.
Further, in the method for the present invention, mobile client is consistent with the udp port that TV service end is monitored.
Further, the method that search command request is sent in step S3 of the invention is specially：
Mobile client sends search command request with multicast and broadcast form, and destination address is the IP address of multicast and broadcast,
The search command request of mobile client is packaged with user-defined format, and the search command request after encapsulation is carried out adding
It is close.
Further, the method for sending UDP acknowledgement commands to mobile client in step S4 of the invention is specially：
The search command request of TV service end response mobile client, sending service end search to mobile client should
Answer, sent with UDP forms, send IP address of the address for multicast and broadcast, port is udp port, transmits the UDP at TV service end
Acknowledgement command and TV service end equipment name, UDP acknowledgement commands and TV service end equipment name are packaged with user-defined format,
And be encrypted.
Further, the method for also including being encrypted data during throwing screen of the invention, the method is：
By the form of the key-value pair of user-defined format, order is generated into character string by separator with content first, then will
Character string is with the Form generation datagram bag of byte arrays；
Data encryption is carried out to packet using DES symmetric encipherment algorithms, is decrypted using DES by key during decryption, handss
Machine client and TV service end perform DES algorithms by privately owned key and realize encryption and decryption.
Further, in step S4 of the invention, parsing obtains the method for TV service end equipment list and is specially：
Mobile client is parsed to which after receiving UDP acknowledgement commands, obtains the implementor name at TV service end, is shown
The list of devices for searching, if there is multiple TV service ends in the LAN, shows the TV clothes of all responses in the LAN
Business end list, if no equipment response, to user pointing out, or should re-search for.
The present invention to be provided and realize the live system for throwing screen based on multicast on a kind of intelligent television, including：
Mobile client monitoring unit, for opening multicast functionality, by IP address and the port of multicast and broadcast, mobile visitor
Family end adds multicast group, and monitors udp port；
TV service end monitoring unit, for opening the multicast functionality at TV service end, by the IP address of multicast and broadcast
And port, TV service end adds multicast group, and monitors multicast and broadcast and udp port；
Multicast search unit, for mobile client in the form of multicast and broadcast, sends to the IP address of multicast and broadcast and searches
Rope command request；
List of devices acquiring unit, for TV service end response search command request, sending UDP to mobile client should
Order is answered, mobile client is parsed to which after receiving UDP acknowledgement commands, obtain TV service end equipment list；
Screen broadcast unit is thrown, for selection result of the receive user from TV service end equipment list, upon selection,
Mobile client sends throwing screen request in the form of UDP to the TV service end for selecting, and TV service end please to receiving throwing screen
Ask carry out parsing obtain throw screen information, according to throw screen information in live TV stream address, call the player at TV service end to carry out
Play.
The beneficial effect comprise that：The live method for throwing screen is realized based on multicast on the intelligent television of the present invention,
Can quickly realize that by way of multicast mobile client and Television clients connect automatically, and realize throwing the effect of screen；We
Method can lift cell-phone customer terminal and Television clients experience effect, improve live video viewing effect；Present invention optimizes multicast
The speed of screen is thrown after search, screen method client is thrown relative to existing multicast and is received just foundation connection after service end response, this
Set up UDP connection cell-phone customer terminals after TV service end receives multicast and broadcast in method immediately, accelerate cell-phone customer terminal search
Device rate；Screen transmission order is thrown in this method optimization, relative to the limited set form orders of existing DLNA, using custom command
Can spread into proprietary protocol；This method lifted Information Security, throw screen order encryption avoid transmitting procedure be stolen or
Other application is obtained.
Description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the method flow diagram of the embodiment of the present invention；
Fig. 2 is the method flow diagram of another specific embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
The explanation of nouns being related in the embodiment of the present invention is as follows：
Multicast：A kind of network service of the corresponding multiple recipients of single sender, in multicasting technology, by multiple receptions
The single message stream mode of side's transmission, it is possible to reduce with multiple recipients while the network listened to or check in the case of same asset leads to
Letter flow amount.
TCP：Transmission control protocol, is a kind of connection-oriented, reliable transport layer communication protocol based on byte stream.
UDP：UDP, is a kind of connectionless transport layer protocol, there is provided towards the simple unreliable of affairs
Information transmission is serviced.
Throw screen：The live video played on mobile phone is shipped on intelligent television and is shown and is played.
As shown in figure 1, the live method for throwing screen is realized based on multicast on the intelligent television of the embodiment of the present invention, including it is following
Step：
S1, mobile client open multicast functionality, by IP address and the port of multicast and broadcast, mobile client addition group
Group is broadcast, and monitors udp port；
Multicast functionality is opened at S2, TV service end, by IP address and the port of multicast and broadcast, TV service end addition group
Group is broadcast, and monitors multicast and broadcast and udp port；
S3, mobile client send search command request to the IP address of multicast and broadcast in the form of multicast and broadcast；
The method for sending search command request is specially：
Mobile client sends search command request with multicast and broadcast form, and destination address is the IP address of multicast and broadcast,
The search command request of mobile client is packaged with user-defined format, and the search command request after encapsulation is carried out adding
It is close.
S4, TV service end response search command request, send UDP acknowledgement commands, mobile client to mobile client
Which is parsed after receiving UDP acknowledgement commands, obtain TV service end equipment list；
Parsing obtains the method for TV service end equipment list and is specially：
Mobile client is parsed to which after receiving UDP acknowledgement commands, obtains the implementor name at TV service end, is shown
The list of devices for searching, if there is multiple TV service ends in the LAN, shows the TV clothes of all responses in the LAN
Business end list, if no equipment response, to user pointing out, or should re-search for.
The method that UDP acknowledgement commands are sent to mobile client is specially：
The search command request of TV service end response mobile client, sending service end search to mobile client should
Answer, sent with UDP forms, send IP address of the address for multicast and broadcast, port is udp port, transmits the UDP at TV service end
Acknowledgement command and TV service end equipment name, UDP acknowledgement commands and TV service end equipment name are packaged with user-defined format,
And be encrypted.
The selection result of S5, mobile client receive user from TV service end equipment list, it is upon selection, mobile
Client to select TV service end is sent in the form of UDP throwing screen request, TV service end to receive throwing screen ask into
Row parsing obtains throwing screen information, according to the live TV stream address thrown in screen information, calls the player at TV service end to play out.
Mobile client in this method includes the mobile phone and panel computer of Android operation system and Apple Macintosh operating system, but
It is not limited to above equipment.
The live system for throwing screen is realized based on multicast on the intelligent television of the embodiment of the present invention, including：
Mobile client monitoring unit, for opening multicast functionality, by IP address and the port of multicast and broadcast, mobile visitor
Family end adds multicast group, and monitors udp port；
TV service end monitoring unit, for opening the multicast functionality at TV service end, by the IP address of multicast and broadcast
And port, TV service end adds multicast group, and monitors multicast and broadcast and udp port；
Multicast search unit, for mobile client in the form of multicast and broadcast, sends to the IP address of multicast and broadcast and searches
Rope command request；
List of devices acquiring unit, for TV service end response search command request, sending UDP to mobile client should
Order is answered, mobile client is parsed to which after receiving UDP acknowledgement commands, obtain TV service end equipment list；
Screen broadcast unit is thrown, for selection result of the receive user from TV service end equipment list, upon selection,
Mobile client sends throwing screen request in the form of UDP to the TV service end for selecting, and TV service end please to receiving throwing screen
Ask carry out parsing obtain throw screen information, according to throw screen information in live TV stream address, call the player at TV service end to carry out
Play.
As shown in Fig. 2 in another specific embodiment of the present invention, intelligent television, intelligent box, smart mobile phone pass through
It is wired or wireless to be connected in the i.e. same LAN of same route, mobile phone searching discovery intelligent television and box, and by handss
Video live in machine throws screen on intelligent television and box.
With it, mobile phone and intelligent television connect automatically, mobile phone can control intelligent television application by sending order,
Live video in mobile phone is projected and watch on the TV of giant-screen, improve Consumer's Experience, and viewing effect.This can also be passed through
Method, carries out the business such as Remote TV applications, remote input.
Cell-phone customer terminal in the present embodiment：Cell-phone customer terminal is not limited to Android smartphone, Fructus Mali pumilae smart mobile phone and
Other smart mobile phones are equally applicable.TV service end：TV service end is not limited to intelligent television, and intelligent box, intelligence are projected
The smart machines such as instrument are equally applicable.
When multicast sends and receives, source host only sends a data, and destination address of this number according in is multicast group ground
Location；All recipients in multicast group can receive same data copy, and main frame (the target master only in multicast group
Machine) data can be received, in network, other main frames can not be received.
The step of the method, includes：
Step S1：Cell-phone customer terminal open multicast functionality, part Android device may give tacit consent to closing the function, need to pass through
Multicast functionality is opened to device systems application multicast authority, ARIXTRA can call WifiManager classes
CreateMulticastLock methods and acquire methods open multicast functionality.
Step S2：Cell-phone customer terminal adds multicast group, and the multicast and broadcast address of addition is 239.255.255.250, port
For 1900, after adding multicast, multicast and broadcast can be sent to the multicast group, Android device is by setting up MulticastSocket
(multi-case data report socket) adds multicast group.
Step S3：Cell-phone customer terminal monitors UDP, and the port of monitoring is 5050, can receive and be sent to the equipment after monitoring
Message on 5050 port of address, Android device monitor UDP by DatagramSocket (Datagram Socket).
Step S4：TV service end open multicast functionality, equipment component may give tacit consent to closing the function, by equipment system
System application multicast authority opens multicast functionality.
Step S5：TV service end adds multicast group, and the multicast and broadcast address of addition is 239.255.255.250, port
For 1900.Multicast and broadcast can be sent to the multicast group after adding multicast.
Step S6：Multicast and broadcast is monitored at TV service end, and multicast and broadcast address is 239.255.255.250, and port is
1900, the multicast message that the multicast sends, the MulticastSocket that Android device is set up by S5 can be received after monitoring
(multi-case data report socket) monitors multicast and broadcast.
Step S7：Udp port 5050 is monitored at TV service end, can receive and be sent to 5050 on the device address after monitoring
The message of port.
Step S8：Cell-phone customer terminal is performed throws screen operation, directly can be shown in the form of throwing screen icon when playing, first
Scan for finding, then carry out throwing screen operation.The information of live video cell-phone customer terminal watched during screen is thrown to make by oneself
Adopted form encapsulation, it is also possible to data encryption.
User-defined format can be in the form of key-value pair, such as character string：Order=content, encapsulation then will first be ordered and interior
Hold the character string that " order=content " is generated by separator '=', then by character string with the Form generation of byte arrays
DatagramPacket (datagram bag).
Data encryption can be encrypted using DES (a kind of symmetric encipherment algorithm), decrypted using DES by key during decryption, plus
Close decipherment algorithm realizes that using disclosed DES algorithms cell-phone customer terminal and service end perform DES algorithm realities by privately owned key
Now encrypt and decrypt, as key is private cipher key, so as to ensure that transmitting procedure is safe and reliable, for example private cipher key is
“mutilscreen_key”。
Step S9：Cell-phone customer terminal performs search operation, and during search, cell-phone customer terminal should be searched for user to point out
In, friendly shows just in searching television server device to user.
Step S10：Cell-phone customer terminal sends searching request, is sent with multicast and broadcast form, and destination address is multicast and broadcast
Address 239.255.255.250, port 1900 transmit client-side search order, and client-side search order is sealed with user-defined format
It is attached in data message, it is also possible to data encryption.For example user-defined format " cmd_discover=client ", close after encryption
Text transmission.
Step S11：TV service termination receive S10 cell-phone customer terminals transmission multicast and broadcast, receive from
239.255.255.250 the multicast and broadcast of port 1900, and searched according to the client in self-defining format analysis data message
Rope order, if data message encryption is first decrypted, then parses client-side search order.Parsing is then the group that will be received
The byte arrays broadcast in the DatagramPacket in broadcast reversely generate data, such as user-defined format according to the form of encapsulation
For：Order=content, then be first converted into character string by byte arrays, parsed by separator '=' order and content (under
Text parsing is identical with this), i.e., " cmd_discover=client ".
Step S12：The search command request of TV service end response cell-phone customer terminal, sends service end to cell-phone customer terminal
Search response, is sent with UDP forms, and it is the cell-phone customer terminal IP address that carries in S11 data messages to send address, and port is
5050, transmission service end searches for acknowledgement command and TV service end equipment name, service end search acknowledgement command and TV service end
Implementor name is encapsulated in data message with user-defined format, it is also possible to data encryption.Such as " cmd_server=television equipments
Name ", encryption post package is to data-message transmission.
Step S13：Cell-phone customer terminal receives the UDP that S12 TV services end sends, according to self-defining format analysis data
Service end search acknowledgement command and TV service end equipment name in message, if data message encryption is first decrypted, then solves
Separate out client-side search order and TV service end equipment name.Such as " cmd_server=television equipment names ".
Step S14：The TV service end equipment name that cell-phone customer terminal is parsed according to S13, shows the equipment row for searching
Table, if there is multiple TV service ends in the LAN, should show the TV service end list of all responses in the LAN, if not having
There is equipment response, to user pointing out, or should re-search for.
Step S15：Mobile phone client users select a TV service end equipment in list of devices.
Step S16：Cell-phone customer terminal is sent to the TV service end for selecting throws screen request, is sent with UDP forms, sends ground
Location is the TV service end IP address that carries in S13 data messages, and port is 5050, and transmission client throws screen request command and throwing
Screen information, client are thrown screen request command and throw screen information and is encapsulated in data message with user-defined format, it is also possible to data
Encryption.Such as " cmd_play=live informations ", encryption post package is to data-message transmission.
Step S17：TV service end receives the UDP that S16 cell-phone customer terminals send, and parses datagram according to user-defined format
Client in text is thrown screen request command and throws screen information, if data message encryption is first decrypted, then parses client
Throw screen request command and throw screen information.Such as " cmd_play=live informations ".
Step S18：The throwing screen information that TV service end is parsed according to S17, calls player plays live video, ARIXTRA
Equipment can pass through to throw the live TV stream address in screen information, be delivered in player assembly, by player plays.
Beneficial effects of the present invention include：
A. the present invention can quickly realize that cell-phone customer terminal and Television clients connect automatically, and realize throwing the effect of screen.
B. the present invention can be realized throwing screen on i Phone, and be not limited to the said equipment in Android mobile phone, ARIXTRA TV.
C. the present invention can lift cell-phone customer terminal and Television clients experience effect, improve live video viewing effect.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations should all belong to the protection domain of claims of the present invention.
Claims (9)
1. the live method for throwing screen is realized based on multicast on a kind of intelligent television, it is characterised in that comprise the following steps：
S1, mobile client open multicast functionality, and by IP address and the port of multicast and broadcast, mobile client adds multicast
Group, and monitor udp port；
Multicast functionality is opened at S2, TV service end, and by IP address and the port of multicast and broadcast, TV service end adds multicast
Group, and monitor multicast and broadcast and udp port；
S3, mobile client send search command request to the IP address of multicast and broadcast in the form of multicast and broadcast；
S4, TV service end response search command request, send UDP acknowledgement commands to mobile client, and mobile client is received
Which is parsed to after UDP acknowledgement commands, obtain TV service end equipment list；
The selection result of S5, mobile client receive user from TV service end equipment list, upon selection, mobile client
Hold to the TV service end for selecting and throwing screen request is sent in the form of UDP, TV service end is solved to receiving throwing screen request
Analysis obtains throwing screen information, according to the live TV stream address thrown in screen information, calls the player at TV service end to play out.
2. the live method for throwing screen is realized based on multicast on intelligent television according to claim 1, it is characterised in that the party
Mobile client in method includes the mobile phone and panel computer of Android operation system and Apple Macintosh operating system.
3. the live method for throwing screen is realized based on multicast on intelligent television according to claim 1, it is characterised in that the party
In method, the IP address of the multicast and broadcast that mobile client is added with TV service end is consistent with port.
4. the live method for throwing screen is realized based on multicast on intelligent television according to claim 1, it is characterised in that the party
In method, mobile client is consistent with the udp port that TV service end is monitored.
5. the live method for throwing screen is realized based on multicast on intelligent television according to claim 1, it is characterised in that step
The method that search command request is sent in S3 is specially：
Mobile client sends search command request with multicast and broadcast form, and IP address of the destination address for multicast and broadcast is mobile
The search command request of client is packaged with user-defined format, and the search command request after encapsulation is encrypted.
6. the live method for throwing screen is realized based on multicast on intelligent television according to claim 1, it is characterised in that throw screen
When also include the method that is encrypted to data, the method is：
By the form of the key-value pair of user-defined format, first will order and content by separator generation character string, then by character
String is with the Form generation datagram bag of byte arrays；
Data encryption is carried out to packet using DES symmetric encipherment algorithms, is decrypted using DES by key during decryption, mobile phone visitor
Family end and TV service end perform DES algorithms by privately owned key and realize encryption and decryption.
7. the live method for throwing screen is realized based on multicast on intelligent television according to claim 1, it is characterised in that step
The method that UDP acknowledgement commands are sent to mobile client in S4 is specially：
The search command request of TV service end response mobile client, sends service end search response to mobile client, with
UDP forms send, and send IP address of the address for multicast and broadcast, and port is udp port, transmits the UDP responses at TV service end
Order and TV service end equipment name, UDP acknowledgement commands and TV service end equipment name are packaged with user-defined format, are gone forward side by side
Row encryption.
8. the live method for throwing screen is realized based on multicast on intelligent television according to claim 1, it is characterised in that step
Parsing in S4 obtains the method for TV service end equipment list and is specially：
Mobile client is parsed to which after receiving UDP acknowledgement commands, obtains the implementor name at TV service end, shows search
The list of devices for arriving, if there is multiple TV service ends in the LAN, shows the TV service end of all responses in the LAN
List, if no equipment response, to user pointing out, or should re-search for.
9. the live system for throwing screen is realized based on multicast on a kind of intelligent television, it is characterised in that include：
Mobile client monitoring unit, for opening multicast functionality, by IP address and the port of multicast and broadcast, mobile client
Multicast group is added, and monitors udp port；
TV service end monitoring unit, for opening the multicast functionality at TV service end, by IP address and the end of multicast and broadcast
Mouthful, TV service end adds multicast group, and monitors multicast and broadcast and udp port；
Multicast search unit, for mobile client in the form of multicast and broadcast, sends search life to the IP address of multicast and broadcast
Order request；
List of devices acquiring unit, for TV service end response search command request, sends UDP responses life to mobile client
Order, mobile client are parsed to which after receiving UDP acknowledgement commands, obtain TV service end equipment list；
Screen broadcast unit is thrown, it is for selection result of the receive user from TV service end equipment list, upon selection, mobile
Client to select TV service end is sent in the form of UDP throwing screen request, TV service end to receive throwing screen ask into
Row parsing obtains throwing screen information, according to the live TV stream address thrown in screen information, calls the player at TV service end to play out.
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