CN110475143A - A kind of switching method and apparatus of HDMI video data - Google Patents
A kind of switching method and apparatus of HDMI video data Download PDFInfo
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- CN110475143A CN110475143A CN201810445084.8A CN201810445084A CN110475143A CN 110475143 A CN110475143 A CN 110475143A CN 201810445084 A CN201810445084 A CN 201810445084A CN 110475143 A CN110475143 A CN 110475143A
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- controller
- video data
- hdmi video
- master controller
- hdmi
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Classifications
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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
- H04N21/43—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 or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43632—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wired protocol, e.g. IEEE 1394
- H04N21/43635—HDMI
-
- 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 or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43637—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
Abstract
The embodiment of the invention provides a kind of switching method and apparatus of HDMI video data, which comprises master controller establishes two or more Radio Links from controller to two or more；Master controller is by described two or more than two Radio Links to described two or more than two register from controller；Master controller receives the HDMI video data acquired from controller from the video source device of access from the Radio Link when receiving a certain registered output request from the video of controller by a certain Radio Link；Master controller closes from another Radio Link and receives another HDMI video data that another video source device from controller from access acquires；Master controller exports the HDMI video data received to the picture output device.Realize the wireless switching of HDMI video data, user improves the simplicity of handover operation without continually being plugged to HDMI interface.
Description
Technical field
The present invention relates to the technical fields of communication, more particularly to a kind of switching method and apparatus of HDMI video data.
Background technique
With the fast development of the network technology, video conference, video teaching etc. communicate the life, work, study in user
Etc. it is widely available.
In communication process, in the application scenarios such as some user speech, some user's demonstration operation, meeting is being carried out
When, needing continually to switch HDMI, (High Definition Multimedia Interface, high-definition multimedia connect
Mouthful) signal source.
Currently, user is usually to pull up HMDI interface from a signal source, then HDMI interface is accessed another signal source,
But generally require continually to switch HDMI signal source in video conference, the mode plugged manually seems very complicated.
Summary of the invention
In view of the above problems, it proposes the embodiment of the present invention and overcomes the above problem or at least partly in order to provide one kind
A kind of switching method and apparatus of the HDMI video data to solve the above problems.
According to one aspect of the present invention, a kind of switching method of HDMI video data, master controller connection are provided
Picture output device, it is two or more to access two or more video source devices, the method from controller
Include:
Master controller establishes two or more Radio Links from controller to two or more；
Master controller is by described two or more than two Radio Links to described two or more than two from control
Device is registered；
Master controller by a certain Radio Link receive it is a certain it is registered from the video of controller export request when,
The HDMI video data acquired from controller from the video source device of access are received from the Radio Link；
Master controller closes from another Radio Link and receives the another of another video source device acquisition from controller from access
One HDMI video data；
Master controller exports the HDMI video data received to the picture output device.
Optionally, the master controller by described two or more than two Radio Links to it is described two or two with
On slave controller registered, comprising:
Master controller receives a certain registration request sent from controller by a certain Radio Link, in the registration request
With the device identification from controller and it is described from controller HDMI video data are encoded coding letter
Breath；
Master controller carries out legitimacy verifies using the device identification；
When through the legitimacy verifies, confirmation is described to succeed in registration master controller from controller, and stores the volume
Code information；
Master controller sends registration response from controller to described by the Radio Link.
Optionally, the master controller by described two or more than two Radio Links to it is described two or two with
On slave controller registered, further includes:
Master controller is closed described from controller from the acquisition of the video source device of access from Radio Link reception
HDMI video data.
Optionally, the master controller exports the HDMI video data to the picture output device, comprising:
Master controller inquiry is described from the corresponding encoded information of controller；
Master controller is decoded the HDMI video data using the encoded information；
Master controller exports decoded HDMI video data to the picture output device.
Optionally, the picture output device includes display, the HDMI video data that the master controller will receive
It exports to the picture output device, comprising:
The HDMI video data received are exported to display and are played out by controller.
Optionally, the picture output device includes view networked terminals, the HDMI video that the master controller will receive
Data are exported to the picture output device, comprising:
Controller exports the HDMI video data received to the view networked terminals, to generate view networking protocol packet simultaneously
It is sent to view networked server.
According to another aspect of the present invention, a kind of switching device of HDMI video data, master controller connection are provided
Picture output device, it is two or more to access two or more video source devices, described device from controller
In the master controller, comprising:
Wireless link establishes module, for establishing two or more nothings from controller to two or more
Wired link；
From controller registration module, it is used for through described two or more than two Radio Links to described two or two
Above slave controller is registered；
HDMI video data reception module, for received by a certain Radio Link it is a certain registered from controller
Video when exporting request, receive the HDMI view acquired from controller from the video source device of access from the Radio Link
Frequency evidence；
HDMI video data closedown module receives another view from controller from access for closing from another Radio Link
Another HDMI video data of frequency source equipment acquisition；
HDMI video data outputting module, the HDMI video data for will receive are exported to video output and are set
It is standby.
Optionally, described to include: from controller registration module
Registration request receiving submodule is asked for receiving a certain registration sent from controller by a certain Radio Link
Ask, have in the registration request device identification from controller and it is described from controller to HDMI video data
The encoded information encoded；
Legitimacy verifies submodule, for carrying out legitimacy verifies using the device identification；
It succeeds in registration and handles submodule, for being registered described in confirmation from controller when through the legitimacy verifies
Function, and store the encoded information；
Registration response sending submodule, for sending registration response from controller to described by the Radio Link.
It is optionally, described from controller registration module further include:
Default closes submodule, sets for closing from Radio Link reception is described from controller from the video source of access
The HDMI video data of standby acquisition.
Optionally, the HDMI video data outputting module includes:
Encoded information inquires submodule, described from the corresponding encoded information of controller for inquiring；
Decoding sub-module, for being decoded using the encoded information to the HDMI video data；
Decoded output submodule, for exporting decoded HDMI video data to the picture output device.
Optionally, the picture output device includes display, and the HDMI video data outputting module includes:
Display output sub-module, the HDMI video data for will receive, which are exported to display, to be played out.
Optionally, the picture output device includes view networked terminals, and the HDMI video data outputting module includes:
Depending on networked terminals output sub-module, the HDMI video data received are exported to the view for controller and are networked
Terminal, to generate depending on networking protocol packet and be sent to view networked server.
The embodiment of the present invention includes following advantages:
In embodiments of the present invention, master controller establishes two or more from controller to two or more
Radio Link, infused to two or more from controller by described two or more than two Radio Links
Volume connects when receiving a certain registered output request from the video of controller by a certain Radio Link from Radio Link
The HDMI video data acquired from controller from the video source device of access are received, are closed another from the reception of another Radio Link
Another HDMI video data acquired from controller from the video source device of access, so that the HDMI video data received are defeated
Out to picture output device, master controller is wirelessly connect with from controller, and the wireless of HDMI video data may be implemented
Switching, user improve the simplicity of handover operation without continually being plugged to HDMI interface.
Detailed description of the invention
Fig. 1 is a kind of networking schematic diagram of view networking of one embodiment of the invention；
Fig. 2 is a kind of hardware structural diagram of node server of one embodiment of the invention；
Fig. 3 is a kind of hardware structural diagram of access switch of one embodiment of the invention；
Fig. 4 is that a kind of Ethernet association of one embodiment of the invention turns the hardware structural diagram of gateway；
Fig. 5 is a kind of step flow chart of the switching method of HDMI video data of one embodiment of the invention；
A kind of master controller and the exemplary diagram from controller that Fig. 6 is one embodiment of the invention；
Fig. 7 is a kind of structural block diagram of the switching device of HDMI video data of one embodiment of the invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
It is the important milestone of network Development depending on networking, is a real-time network, can be realized HD video real-time Transmission,
Push numerous Internet applications to HD video, high definition is face-to-face.
Real-time high-definition video switching technology is used depending on networking, it can be such as high in a network platform by required service
Clear video conference, Intellectualized monitoring analysis, emergency command, digital broadcast television, delay TV, the Web-based instruction, shows video monitoring
Field live streaming, VOD program request, TV Mail, individual character records (PVR), Intranet (manages) channel by oneself, intelligent video Broadcast Control, information publication
All be incorporated into a system platform etc. services such as tens of kinds of videos, voice, picture, text, communication, data, by TV or
Computer realizes that high-definition quality video plays.
Embodiment in order to enable those skilled in the art to better understand the present invention is introduced to depending on networking below:
Depending on networking, applied portion of techniques is as described below:
Network technology (Network Technology)
Traditional ethernet (Ethernet) is improved depending on the network technology innovation networked, with potential huge on network
Video flow.(Circuit is exchanged different from simple network packet packet switch (Packet Switching) or lattice network
Switching), Streaming demand is met using Packet Switching depending on networking technology.Has grouping depending on networking technology
Flexible, the simple and low price of exchange, is provided simultaneously with the quality and safety assurance of circuit switching, it is virtually electric to realize the whole network switch type
The seamless connection of road and data format.
Switching technology (Switching Technology)
Two advantages of asynchronous and packet switch that Ethernet is used depending on networking eliminate Ethernet under the premise of complete compatible and lack
It falls into, has the end-to-end seamless connection of the whole network, direct user terminal, directly carrying IP data packet.User data is in network-wide basis
It is not required to any format conversion.It is the more advanced form of Ethernet depending on networking, is a real-time exchange platform, can be realized at present mutually
The whole network large-scale high-definition realtime video transmission that networking cannot achieve pushes numerous network video applications to high Qinghua, unitizes.
Server technology (Server Technology)
It is different from traditional server, its Streaming Media depending on the server technology in networking and unified video platform
Transmission be built upon it is connection-oriented on the basis of, data-handling capacity is unrelated with flow, communication time, single network layer energy
Enough transmitted comprising signaling and data.For voice and video business, handled depending on networking and unified video platform Streaming Media
Complexity many simpler than data processing, efficiency substantially increase hundred times or more than traditional server.
Reservoir technology (Storage Technology)
The ultrahigh speed reservoir technology of unified video platform in order to adapt to the media content of vast capacity and super-flow and
Using state-of-the-art real time operating system, the programme information in server instruction is mapped to specific hard drive space, media
Content is no longer pass through server, and moment is directly delivered to user terminal, and user waits typical time less than 0.2 second.It optimizes
Sector distribution greatly reduces the mechanical movement of hard disc magnetic head tracking, and resource consumption only accounts for the 20% of the internet ad eundem IP, but
The concurrent flow greater than 3 times of traditional disk array is generated, overall efficiency promotes 10 times or more.
Network security technology (Network Security Technology)
Depending on the structural design networked by servicing independent licence system, equipment and the modes such as user data is completely isolated every time
The network security problem that puzzlement internet has thoroughly been eradicated from structure, does not need antivirus applet, firewall generally, has prevented black
The attack of visitor and virus, structural carefree secure network is provided for user.
It services innovative technology (Service Innovation Technology)
Business and transmission are fused together by unified video platform, whether single user, private user or a net
The sum total of network is all only primary automatic connection.User terminal, set-top box or PC are attached directly to unified video platform, obtain rich
The multimedia video service of rich colorful various forms.Unified video platform is traditional to substitute with table schema using " menu type "
Complicated applications programming, considerably less code, which can be used, can be realized complicated application, realize the new business innovation of " endless ".
Networking depending on networking is as described below:
It is a kind of central controlled network structure depending on networking, which can be Tree Network, Star network, ring network etc. class
Type, but centralized control node is needed to control whole network in network on this basis.
As shown in Figure 1, being divided into access net and Metropolitan Area Network (MAN) two parts depending on networking.
The equipment of access mesh portions can be mainly divided into 3 classes: node server, access switch, terminal (including various machines
Top box, encoding board, memory etc.).Node server is connected with access switch, and access switch can be with multiple terminal phases
Even, and it can connect Ethernet.
Wherein, node server is the node that centralized control functions are played in access net, can control access switch and terminal.
Node server can directly be connected with access switch, can also directly be connected with terminal.
Similar, the equipment of metropolitan area mesh portions can also be divided into 3 classes: metropolitan area server, node switch, node serve
Device.Metropolitan area server is connected with node switch, and node switch can be connected with multiple node servers.
Wherein, node server is the node server for accessing mesh portions, i.e. node server had both belonged to access wet end
Point, and belong to metropolitan area mesh portions.
Metropolitan area server is the node that centralized control functions are played in Metropolitan Area Network (MAN), can control node switch and node serve
Device.Metropolitan area server can be directly connected to node switch, can also be directly connected to node server.
It can be seen that be entirely a kind of central controlled network structure of layering depending on networking network, and node server and metropolitan area
The network controlled under server can be the various structures such as tree-shaped, star-like, cyclic annular.
Visually claim, access mesh portions can form unified video platform (part in virtual coil), and multiple unified videos are flat
Platform can form view networking；Each unified video platform can be interconnected by metropolitan area and wide area depending on networking.
Classify depending on networked devices
1.1 embodiment of the present invention can be mainly divided into 3 classes: server depending on the equipment in networking, interchanger (including ether
Net gateway), terminal (including various set-top boxes, encoding board, memory etc.).Depending on networking can be divided on the whole Metropolitan Area Network (MAN) (or
National net, World Wide Web etc.) and access net.
1.2 equipment for wherein accessing mesh portions can be mainly divided into 3 classes: node server, access switch (including ether
Net gateway), terminal (including various set-top boxes, encoding board, memory etc.).
The specific hardware structure of each access network equipment are as follows:
Node server:
As shown in Fig. 2, mainly including Network Interface Module 201, switching engine module 202, CPU module 203, disk array
Module 204；
Wherein, Network Interface Module 201, the Bao Jun that CPU module 203, disk array module 204 are come in enter switching engine
Module 202；Switching engine module 202 look into the operation of address table 205 to the packet come in, to obtain the navigation information of packet；
And the packet is stored according to the navigation information of packet the queue of corresponding pack buffer 206；If the queue of pack buffer 206 is close
It is full, then it abandons；All pack buffer queues of 202 poll of switching engine mould, are forwarded: 1) port if meeting the following conditions
It is less than to send caching；2) the queue package counting facility is greater than zero.Disk array module 204 mainly realizes the control to hard disk, including
The operation such as initialization, read-write to hard disk；CPU module 203 is mainly responsible between access switch, terminal (not shown)
Protocol processes, to address table 205 (including descending protocol packet address table, uplink protocol package address table, data packet addressed table)
Configuration, and, the configuration to disk array module 204.
Access switch:
As shown in figure 3, mainly including Network Interface Module (downstream network interface module 301, uplink network interface module
302), switching engine module 303 and CPU module 304；
Wherein, the packet (upstream data) that downstream network interface module 301 is come in enters packet detection module 305；Packet detection mould
Whether mesh way address (DA), source address (SA), type of data packet and the packet length of the detection packet of block 305 meet the requirements, if met,
It then distributes corresponding flow identifier (stream-id), and enters switching engine module 303, otherwise abandon；Uplink network interface mould
The packet (downlink data) that block 302 is come in enters switching engine module 303；The data packet that CPU module 204 is come in enters switching engine
Module 303；Switching engine module 303 look into the operation of address table 306 to the packet come in, to obtain the navigation information of packet；
If the packet into switching engine module 303 is that downstream network interface is gone toward uplink network interface, in conjunction with flow identifier
(stream-id) packet is stored in the queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full,
It abandons；If the packet into switching engine module 303 is not that downstream network interface is gone toward uplink network interface, according to packet
Navigation information is stored in the data packet queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full,
Then abandon.
All pack buffer queues of 303 poll of switching engine module, are divided to two kinds of situations in embodiments of the present invention:
If the queue is that downstream network interface is gone toward uplink network interface, meets the following conditions and be forwarded: 1)
It is less than that the port sends caching；2) the queue package counting facility is greater than zero；3) token that rate control module generates is obtained；
If the queue is not that downstream network interface is gone toward uplink network interface, meets the following conditions and is forwarded:
1) it is less than to send caching for the port；2) the queue package counting facility is greater than zero.
Rate control module 208 is configured by CPU module 204, to all downlink networks in programmable interval
Interface generates token toward the pack buffer queue that uplink network interface is gone, to control the code rate of forwarded upstream.
CPU module 304 is mainly responsible for the protocol processes between node server, the configuration to address table 306, and,
Configuration to rate control module 308.
Ethernet association turns gateway:
As shown in figure 4, mainly including Network Interface Module (downstream network interface module 401, uplink network interface module
402), switching engine module 403, CPU module 404, packet detection module 405, rate control module 408, address table 406, Bao Huan
Storage 407 and MAC adding module 409, MAC removing module 410.
Wherein, the data packet that downstream network interface module 401 is come in enters packet detection module 405；Packet detection module 405 is examined
Ethernet mac DA, ethernet mac SA, Ethernet length or frame type, the view networking mesh way address of measured data packet
DA, whether meet the requirements depending on networking source address SA, depending on networking data Packet type and packet length, corresponding stream is distributed if meeting
Identifier (stream-id)；Then, MAC DA, MAC SA, length or frame type are subtracted by MAC removing module 410
(2byte), and enter corresponding receive and cache, otherwise abandon；
Downstream network interface module 401 detects the transmission caching of the port, according to the view of packet networking mesh if there is Bao Ze
Address D A knows the ethernet mac DA of corresponding terminal, adds the ethernet mac DA of terminal, Ethernet assists the MAC for turning gateway
SA, Ethernet length or frame type, and send.
The function that Ethernet association turns other modules in gateway is similar with access switch.
Terminal:
It mainly include Network Interface Module, Service Processing Module and CPU module；For example, set-top box mainly connects including network
Mouth mold block, video/audio encoding and decoding engine modules, CPU module；Encoding board mainly includes Network Interface Module, video encoding engine
Module, CPU module；Memory mainly includes Network Interface Module, CPU module and disk array module.
The equipment of 1.3 metropolitan area mesh portions can be mainly divided into 2 classes: node server, node switch, metropolitan area server.
Wherein, node switch mainly includes Network Interface Module, switching engine module and CPU module；Metropolitan area server mainly includes
Network Interface Module, switching engine module and CPU module are constituted.
2, networking data package definition is regarded
2.1 access network data package definitions
Access net data packet mainly include following sections: destination address (DA), source address (SA), reserve bytes,
payload(PDU)、CRC。
As shown in the table, the data packet for accessing net mainly includes following sections:
| DA | SA | Reserved | Payload | CRC |
Wherein:
Destination address (DA) is made of 8 bytes (byte), and first character section indicates type (such as the various associations of data packet
Discuss packet, multicast packet, unicast packet etc.), be up to 256 kinds of possibility, the second byte to the 6th byte is metropolitan area net address,
Seven, the 8th bytes are access net address；
Source address (SA) is also to be made of 8 bytes (byte), is defined identical as destination address (DA)；
Reserve bytes are made of 2 bytes；
The part payload has different length according to the type of different datagrams, is if it is various protocol packages
64 bytes are 32+1024=1056 bytes if it is single group unicast packets words, are not restricted to above 2 kinds certainly；
CRC is made of 4 bytes, and calculation method follows the Ethernet CRC algorithm of standard.
2.2 Metropolitan Area Network (MAN) packet definitions
The topology of Metropolitan Area Network (MAN) is pattern, may there is 2 kinds, connection even of more than two kinds, i.e. node switching between two equipment
It can all can exceed that 2 kinds between machine and node server, node switch and node switch, node switch and node server
Connection.But the metropolitan area net address of metropolitan area network equipment is uniquely, to close to accurately describe the connection between metropolitan area network equipment
System, introduces parameter in embodiments of the present invention: label, uniquely to describe a metropolitan area network equipment.
(Multi-Protocol Label Switch, multiprotocol label are handed over by the definition of label and MPLS in this specification
Change) label definition it is similar, it is assumed that between equipment A and equipment B there are two connection, then data packet from equipment A to equipment B just
There are 2 labels, data packet also there are 2 labels from equipment B to equipment A.Label is divided into label, outgoing label, it is assumed that data packet enters
The label (entering label) of equipment A is 0x0000, and the label (outgoing label) when this data packet leaves equipment A may reform into
0x0001.The networking process of Metropolitan Area Network (MAN) is to enter network process under centralized control, also means that address distribution, the label of Metropolitan Area Network (MAN)
Distribution be all to be dominated by metropolitan area server, node switch, node server be all passively execute, this point with
The label distribution of MPLS is different, and the distribution of the label of MPLS is the result that interchanger, server are negotiated mutually.
As shown in the table, the data packet of Metropolitan Area Network (MAN) mainly includes following sections:
| DA | SA | Reserved | Label | Payload | CRC |
That is destination address (DA), source address (SA), reserve bytes (Reserved), label, payload (PDU), CRC.Its
In, the format of label, which can refer to, such as gives a definition: label is 32bit, wherein high 16bit retains, only with low 16bit, its position
Set is between the reserve bytes and payload of data packet.
Referring to Fig. 5, a kind of step process of the switching method of HDMI video data of one embodiment of the invention is shown
Figure, can specifically include following steps:
Step 501, master controller establishes two or more radio chains from controller to two or more
Road.
In embodiments of the present invention, as shown in fig. 6, in the scene of service application, a master controller can be disposed
(master), two or more from controller (slave).
One master controller (master) connects picture output device, two or more to connect from controller (slave)
Enter two or more video source devices, i.e., each at least accesses a video source device from controller.
Wherein, video source device can be the equipment that generates HDMI video data, for example, PC, mobile terminal, taking the photograph
As head, etc..
In master controller (master), connect configured with wireless transceiver (such as bluetooth mould group), decoder, HDMI output
Mouthful.
Wherein, for carrying out wireless communication, decoder is used to be decoded operation to HDMI video data wireless transceiver,
HDMI output interface is used to export the HDMI video data after decoding.
Each from controller (slave), configured with wireless transceiver (such as bluetooth mould group), encoder, HDMI acquisition
Device.
Wherein, for carrying out wireless communication, encoder is used to perform the encoding operation HDMI video data wireless transceiver,
HDMI collector is used to acquire HDMI video data from video source device.
In the scene of service application, master controller (master), from controller (slave), calls master control for each
The wireless transceiver of device (master) processed itself, with the wireless transceiver from controller (slave) according to set agreement (such as
BLE 4.0) it holds consultation, Radio Link (such as Bluetooth link) is established respectively.
Step 502, master controller is by described two or more than two Radio Links to described two or more than two
Slave controller registered.
After establishing Radio Link, then master controller (master) with from controller (slave) nothing can be passed through
Wired link carries out wireless communication.
Master controller (master) is registered to from controller (slave), its legal equipment identities is verified, with after an action of the bowels
The HDMI video data that the video source device accessed from controller (slave) from it acquires are received in continued access.
In one embodiment of the invention, step 502 may include following sub-step:
Sub-step S11, master controller receive a certain registration request sent from controller by a certain Radio Link.
Wherein, have from the device identification (such as device id) of controller and from controller in registration request to HDMI
The encoded information (such as resolution ratio, frame per second) that video data is encoded.
Sub-step S12, master controller carry out legitimacy verifies using the device identification.
Master controller (master) is extracted in the registration request after the device identification of controller (slave), then may be used
By carrying out legitimacy verifies from the device identification of controller (slave).
In one example, master controller (master) may determine that the device identification whether be pre-enter, it is legal
The device identification of equipment, if so, being identified through legitimacy verifies, otherwise, confirmation does not pass through legitimacy verifies.
Sub-step S13, when through the legitimacy verifies, confirmation is described to succeed in registration master controller from controller, and
Store the encoded information.
Sub-step S14, master controller send registration response from controller to described by the Radio Link.
If having passed through legitimacy verifies from controller (slave), its legal identity can be confirmed, then succeed in registration, deposit
Store up its encoded information.
In addition, master controller (master) generates registration response (succeeding in registration), and it is sent to by Radio Link from control
Device (slave) processed such as prompts from controller (slave) according to the corresponding prompt operation of registration response (succeeding in registration) triggering
Lamp becomes being always on from flashing.
Sub-step S15, master controller, which is closed, to be set from Radio Link reception is described from controller from the video source of access
The HDMI video data of standby acquisition.
In addition, master controller (master) default, which is closed, to be received from control for the slave controller (slave) connected for the first time
The collected HDMI video data of video source device that device (slave) is accessed from it, avoid to the slave controller exported
(slave) HDMI video data impact.
Step 503, master controller is to receive a certain registered video from controller by a certain Radio Link defeated
When requesting out, the HDMI video data acquired from controller from the video source device of access are received from the Radio Link.
In the concrete realization, the video source device acquisition for calling HDMI collector to access from it from controller (slave)
HDMI video data, and encoder is called to perform the encoding operation according to preset encoded information.
User can operate from controller (slave), such as press control switch, then generate video output and ask
It asks, and master controller (master) is sent to by Radio Link.
Master controller (master) is exported according to the video and is requested, and calls wireless transceiver by the Radio Link, from this
HDMI video data are received from controller (slave).
Step 504, master controller closes from another Radio Link and receives another video source device from controller from access
Another HDMI video data of acquisition.
Master controller (master) receives the HDMI video number of current slave controller (slave) from current Radio Link
According to when, then can close from another Radio Link and receive another another HDMI video data from controller (slave), that is, stop
Another Radio Link is received and another is exported from another HDMI video data of controller (slave) to picture output device.
It should be noted that currently can slave controller (slave) can refer in step 503 issue video output request
It is another to refer to from controller (slave) just in output HDMI video data from controller (slave) from controller (slave),
The two is not identical.
Step 505, master controller exports the HDMI video data received to the picture output device.
Current Radio Link is received the HDMI video number of current slave controller (slave) by master controller (master)
According to output performs corresponding processing, to picture output device to realize that picture output device is cut from another HDMI video data
It is changed to current HDMI video data.
In one embodiment of the invention, step 505 may include following sub-step:
Sub-step S21, master controller inquiry are described from the corresponding encoded information of controller.
Sub-step S22, master controller are decoded the HDMI video data using the encoded information.
Sub-step S23, master controller export decoded HDMI video data to the picture output device.
In embodiments of the present invention, master controller (master) receives HDMI view from controller (slave) from current
Frequency is after, and the encoded information that inquiry should be recorded from controller (slave) in registration then can be according to the encoded information pair
The HDMI video data are decoded operation.
To which master controller (master) exports the HDMI video data after decoding to picture output device, so that view
Frequency output equipment can perform corresponding processing the HDMI video data after decoding.
In one example, picture output device includes display, then in this example, the HDMI that controller will receive
Video data is exported to display and is played out.
In another example, picture output device includes view networked terminals, then in this example, controller will receive
HDMI video data export to view networked terminals, depending on networking protocol packet and be sent to view networked server to generate.
In the concrete realization, regarding networked terminals can be set-top box (SetTopBox, STB), commonly referred to as set-top box or machine
Upper box is the equipment of connection a television set and outside source, and the digital signal of compression can be changed into television content by it, and
It shows on a television set.
For regarding networked terminals, HDMI video data can be encapsulated by regarding 2000 specifications of networking protocol as follows,
Networking protocol packet is regarded to generate:
Certainly, above-mentioned picture output device is intended only as example, in implementing the embodiments of the present invention, can be according to practical feelings
Other picture output devices are arranged in condition, and the embodiments of the present invention are not limited thereto.In addition, in addition to above-mentioned picture output device
Outside, those skilled in the art can also use other picture output devices according to actual needs, the embodiment of the present invention to this not yet
It limits.
In embodiments of the present invention, master controller establishes two or more from controller to two or more
Radio Link, infused to two or more from controller by described two or more than two Radio Links
Volume connects when receiving a certain registered output request from the video of controller by a certain Radio Link from Radio Link
The HDMI video data acquired from controller from the video source device of access are received, are closed another from the reception of another Radio Link
Another HDMI video data acquired from controller from the video source device of access, so that the HDMI video data received are defeated
Out to picture output device, master controller is wirelessly connect with from controller, and the wireless of HDMI video data may be implemented
Switching, user improve the simplicity of handover operation without continually being plugged to HDMI interface.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
Referring to Fig. 7, a kind of structural block diagram of the switching device of HDMI video data of one embodiment of the invention is shown,
One master controller connects picture output device, two or more to access two or more video sources from controller
Equipment, described device are located in the master controller, can specifically include following module:
Wireless link establishes module 701, for establishing two or more from controller to two or more
Radio Link；
From controller registration module 702, for by described two or more than two Radio Links to described two or
It is more than two to be registered from controller；
HDMI video data reception module 703, for received by a certain Radio Link it is a certain registered from control
When the video of device processed exports request, received from the Radio Link described from controller from the acquisition of the video source device of access
HDMI video data；
HDMI video data closedown module 704, for close received from another Radio Link it is another from controller from access
Video source device acquisition another HDMI video data；
HDMI video data outputting module 705, the HDMI video data for will receive are exported to the video and are exported
Equipment.
In one embodiment of the invention, described to include: from controller registration module 702
Registration request receiving submodule is asked for receiving a certain registration sent from controller by a certain Radio Link
Ask, have in the registration request device identification from controller and it is described from controller to HDMI video data
The encoded information encoded；
Legitimacy verifies submodule, for carrying out legitimacy verifies using the device identification；
It succeeds in registration and handles submodule, for being registered described in confirmation from controller when through the legitimacy verifies
Function, and store the encoded information；
Registration response sending submodule, for sending registration response from controller to described by the Radio Link.
It is in one embodiment of the invention, described from controller registration module 702 further include:
Default closes submodule, sets for closing from Radio Link reception is described from controller from the video source of access
The HDMI video data of standby acquisition.
In one embodiment of the invention, the HDMI video data outputting module 705 includes:
Encoded information inquires submodule, described from the corresponding encoded information of controller for inquiring；
Decoding sub-module, for being decoded using the encoded information to the HDMI video data；
Decoded output submodule, for exporting decoded HDMI video data to the picture output device.
In one example of an embodiment of the present invention, the picture output device includes display, the HDMI video number
Include: according to output module 705
Display output sub-module, the HDMI video data for will receive, which are exported to display, to be played out.
In one example of an embodiment of the present invention, the picture output device includes view networked terminals, the HDMI view
Frequency data outputting module 705 includes:
Depending on networked terminals output sub-module, the HDMI video data received are exported to the view for controller and are networked
Terminal, to generate depending on networking protocol packet and be sent to view networked server.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
In embodiments of the present invention, master controller establishes two or more from controller to two or more
Radio Link, infused to two or more from controller by described two or more than two Radio Links
Volume connects when receiving a certain registered output request from the video of controller by a certain Radio Link from Radio Link
The HDMI video data acquired from controller from the video source device of access are received, are closed another from the reception of another Radio Link
Another HDMI video data acquired from controller from the video source device of access, so that the HDMI video data received are defeated
Out to picture output device, master controller is wirelessly connect with from controller, and the wireless of HDMI video data may be implemented
Switching, user improve the simplicity of handover operation without continually being plugged to HDMI interface.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
The switching method to a kind of HDMI video data provided by the present invention and a kind of HDMI video data are cut above
Changing device is described in detail, and used herein a specific example illustrates the principle and implementation of the invention,
The above description of the embodiment is only used to help understand the method for the present invention and its core ideas；Meanwhile for the one of this field
As technical staff, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, to sum up institute
It states, the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. a kind of switching method of HDMI video data, which is characterized in that a master controller connect picture output device, two or
It is more than two to access two or more video source devices from controller, which comprises
Master controller establishes two or more Radio Links from controller to two or more；
Master controller by described two or more than two Radio Links to it is described two or it is more than two from controller into
Row registration；
Master controller is when receiving a certain registered output request from the video of controller by a certain Radio Link, from institute
It states Radio Link and receives the HDMI video data acquired from controller from the video source device of access；
Master controller closes from another Radio Link and receives the another of another video source device acquisition from controller from access
HDMI video data；
Master controller exports the HDMI video data received to the picture output device.
2. the method according to claim 1, wherein the master controller is by described two or more than two
Radio Link is to described two or more than two register from controller, comprising:
Master controller receives a certain registration request sent from controller by a certain Radio Link, has in the registration request
The device identification from controller and it is described from controller in the encoded information encoded to HDMI video data；
Master controller carries out legitimacy verifies using the device identification；
When through the legitimacy verifies, confirmation is described to succeed in registration master controller from controller, and stores the coding letter
Breath；
Master controller sends registration response from controller to described by the Radio Link.
3. according to the method described in claim 2, it is characterized in that, the master controller is by described two or more than two
Radio Link is to described two or more than two register from controller, further includes:
Master controller closes from the Radio Link and receives the HDMI view acquired from controller from the video source device of access
Frequency evidence.
4. method according to claim 1 or 2 or 3, which is characterized in that the master controller is by the HDMI video data
It exports to the picture output device, comprising:
Master controller inquiry is described from the corresponding encoded information of controller；
Master controller is decoded the HDMI video data using the encoded information；
Master controller exports decoded HDMI video data to the picture output device.
5. method according to claim 1 or 2 or 3, which is characterized in that the picture output device includes display, institute
Master controller is stated to export the HDMI video data received to the picture output device, comprising:
The HDMI video data received are exported to display and are played out by controller.
6. method according to claim 1 or 2 or 3, which is characterized in that the picture output device includes that view networking is whole
End, the master controller export the HDMI video data received to the picture output device, comprising:
Controller exports the HDMI video data received to the view networked terminals, to generate depending on networking protocol packet and send
To view networked server.
7. a kind of switching device of HDMI video data, which is characterized in that a master controller connect picture output device, two or
More than two to access two or more video source devices from controller, described device is located in the master controller,
Include:
Wireless link establishes module, for establishing two or more radio chains from controller to two or more
Road；
From controller registration module, for passing through described two or more than two Radio Links to described two or more than two
Slave controller registered；
HDMI video data reception module, for receiving a certain registered view from controller by a certain Radio Link
When frequency output request, the HDMI video number acquired from controller from the video source device of access is received from the Radio Link
According to；
HDMI video data closedown module receives another video source from controller from access for closing from another Radio Link
Another HDMI video data of equipment acquisition；
HDMI video data outputting module, the HDMI video data for will receive are exported to the picture output device.
8. device according to claim 7, which is characterized in that described to include: from controller registration module
Registration request receiving submodule, for receiving a certain registration request sent from controller, institute by a certain Radio Link
Stating in registration request has the device identification from controller and described carries out from controller to HDMI video data
The encoded information of coding；
Legitimacy verifies submodule, for carrying out legitimacy verifies using the device identification；
It succeeds in registration and handles submodule, for succeeding in registration described in confirmation from controller when through the legitimacy verifies, and
Store the encoded information；
Registration response sending submodule, for sending registration response from controller to described by the Radio Link.
9. device according to claim 8, which is characterized in that described from controller registration module further include:
Default closes submodule, adopts for closing from Radio Link reception is described from controller from the video source device of access
The HDMI video data of collection.
10. according to device described in claim 7 or 8 or 9, which is characterized in that the HDMI video data outputting module includes:
Encoded information inquires submodule, described from the corresponding encoded information of controller for inquiring；
Decoding sub-module, for being decoded using the encoded information to the HDMI video data；
Decoded output submodule, for exporting decoded HDMI video data to the picture output device.
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