CN110519618A - A kind of processing method of video data and view networked terminals - Google Patents
A kind of processing method of video data and view networked terminals Download PDFInfo
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- CN110519618A CN110519618A CN201810495886.XA CN201810495886A CN110519618A CN 110519618 A CN110519618 A CN 110519618A CN 201810495886 A CN201810495886 A CN 201810495886A CN 110519618 A CN110519618 A CN 110519618A
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
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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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
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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
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
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Abstract
The embodiment of the invention provides a kind of processing methods of video data and view networked terminals, this method comprises: coding chip acquires original video data by video input interface, original video data is encoded to target video data, original video data is sent to bridging chip, target video data is sent to interchanger；Original video data is sent to decoding chip by bridging chip；Decoding chip is sent to transcoding chip when detecting original video data, by initial data；Transcoding chip carries out transcoding processing to original video data, and exports the original video data after transcoding by the first video output interface and play；Interchanger is by being sent to view networked server for target video data depending on networking interface, to be sent to another view networked terminals according to another downstream communications link depending on networked terminals configuration.It under the use environment for regarding networking, realizes the acquisition under high resolution, encode, the transmission of high definition image quality is realized in output broadcasting, preview.
Description
Technical field
The present invention relates to view networking technology fields, and the processing method and view networking more particularly to a kind of video data are eventually
End.
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.
It under the scene for needing high definition image quality, is usually shown on giant display dot matrix, resolution ratio is too low to will lead to picture
Face mould paste, still, the excessively high problem that bandwidth occupancy can be brought larger of resolution ratio.
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
The processing method and view networked terminals of a kind of video data to solve the above problems.
According to one aspect of the present invention, a kind of processing method of video data is provided, positioned at the view networking of view networking
Terminal is provided with coding chip, bridging chip, interchanger, decoding chip, transcoding chip, and coding chip has one or more views
Frequency input interface, switch configuration have view networking interface, and transcoding chip is provided with the first video output interface；
The described method includes:
Coding chip acquires original video data by the video input interface, and the original video data is encoded to
Target video data, is sent to bridging chip for the original video data, and the target video data is sent to interchanger；
The original video data is sent to decoding chip by bridging chip；
Decoding chip is sent to transcoding chip when detecting original video data, by the initial data；
Transcoding chip carries out transcoding processing to the original video data, and will be turned by first video output interface
The original video data after code, which exports, to be played；
The target video data is sent to view networked server depending on networking interface by described by interchanger, according to right
Another downstream communications link depending on networked terminals configuration is sent to another view networked terminals.
Optionally, the transcoding chip carries out transcoding processing to the original video data, and passes through first video
The original video data after transcoding is exported and is played by output interface, comprising:
Transcoding chip reduces the resolution ratio of the original video data, and will be reduced by first video output interface
The original video data after resolution ratio, which exports, to be played.
Optionally, further includes:
Interchanger receives the view networked server by the view networking interface and configures according to the view networked terminals
Downstream communications link to it is described view networked terminals send, it is another view networked terminals target video data；
The target video data is sent to decoding chip by interchanger；
The target video data is decoded as original video data by decoding chip.
Optionally, decoding chip is provided with the second video output interface, further includes:
Decoding chip stops the original video data being sent to transcoding chip, pass through when receiving switching signal
The original video data is exported and is played by second video output interface.
Optionally, further includes:
Another original video data is sent to transcoding chip by decoding chip；
Transcoding chip carries out transcoding processing to another original video data, and passes through first video output interface
Another original video data output after transcoding is played.
Optionally, the transcoding chip carries out transcoding processing to another original video data, and passes through described first
Video output interface plays another original video data output after transcoding, comprising:
Transcoding chip reduces the resolution ratio of another original video data, and passing through first video output interface will
Reduce another original video data output broadcasting after resolution ratio.
According to another aspect of the present invention, a kind of view networked terminals are provided, be located at view networking, be provided with coding chip,
Bridging chip, interchanger, decoding chip, transcoding chip, coding chip have one or more video input interfaces, and interchanger is set
It is equipped with view networking interface, transcoding chip is provided with the first video output interface；
Coding chip, for acquiring original video data by the video input interface, by the original video data
It is encoded to target video data, the original video data is sent to bridging chip, the target video data is sent to
Interchanger；
Bridging chip, for the original video data to be sent to decoding chip；
Decoding chip, for when detecting original video data, the initial data to be sent to transcoding chip；
Transcoding chip for carrying out transcoding processing to the original video data, and is connect by first video output
The original video data after transcoding is exported and is played by mouth；
Interchanger, for the target video data to be sent to view networked server depending on networking interface by described, with
Another view networked terminals are sent to according to another downstream communications link depending on networked terminals configuration.
Optionally, transcoding chip is also used to reduce the resolution ratio of the original video data, and passes through first video
The original video data after reducing resolution ratio is exported and is played by output interface.
Optionally, interchanger is also used to receive the view networked server according to described by the view networking interface
Downstream communications link depending on networked terminals configuration regards target video number for regarding networked terminals that networked terminals are sent, another to described
According to the target video data is sent to decoding chip；
Decoding chip is also used to the target video data being decoded as original video data.
Optionally, decoding chip is provided with the second video output interface, and decoding chip is also used to receiving switching signal
When, stop the original video data being sent to transcoding chip, by second video output interface by the original view
Frequency is played according to output.
Optionally, decoding chip is also used to another original video data being sent to transcoding chip；
Transcoding chip is also used to carry out transcoding processing to another original video data, and passes through first video
Output interface plays another original video data output after transcoding.
Optionally, transcoding chip is also used to reduce the resolution ratio of another original video data, and passes through described first
Another original video data output after video output interface will reduce resolution ratio plays.
The embodiment of the present invention includes following advantages:
In embodiments of the present invention, coding chip acquires original video data by video input interface, by original video
Data encoding is target video data, and original video data is sent to bridging chip, and target video data is sent to exchange
Original video data is sent to decoding chip by machine, bridging chip, and decoding chip, will be original when detecting original video data
Data are sent to transcoding chip, and transcoding chip carries out transcoding processing to original video data, and passes through the first video output interface
Original video data after transcoding is exported and is played, interchanger is by being sent to view connection for target video data depending on networking interface
Network server, to be sent to another view networked terminals according to another downstream communications link depending on networked terminals configuration, for dividing
The higher video data of resolution is realized the acquisition under high resolution, is encoded, on the one hand, output is broadcast under the use environment of view networking
It puts, preview, on the other hand, under the conditions of bandwidth is lesser, realizes the transmission of high definition image quality.
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 structural schematic diagram of view networked terminals of one embodiment of the invention；
Fig. 6 is a kind of step flow chart of the processing method of video data of one embodiment of the invention；
Fig. 7 is the step flow chart of the processing method of another video data of one embodiment of the invention；
Fig. 8 is a kind of structural block diagram of view networked terminals 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 structural schematic diagram of view networked terminals of one embodiment of the invention is shown.
As shown in figure 5, view networked terminals are located in view networking, it is provided with coding chip 501, bridging chip 502, interchanger
503, decoding chip 504, transcoding chip 505, coding chip 501 have one or more video input interfaces 5011, interchanger
503 are provided with view networking interface 5031, and transcoding chip 505 is provided with the first video output interface 5051, and decoding chip 504 is arranged
There is the second video output interface 5041.
Wherein, coding chip 501 is used to original video data being encoded to target video data.
Using Hi3559A as the example of coding chip 501, Hi3559A (is regarded by one or more HDMI_IN interface
Frequency input interface 5011), the external equipments such as access PC, camera acquire one or more HDMI (High
Definition Multimedia Interface, high-definition multimedia interface) original video data, processing capacity 1
H.264 etc. road 8K coding or 4 road 4K coding, coding mode can be for.
Bridging chip 502 (such as PCIe chip) provides stream for connecting coding chip 501 and decoding chip 504, for the two
Measure biggish communication path.
It is lesser to provide flow for the two on the one hand for connecting coding chip 501 and decoding chip 504 for interchanger 503
On the other hand communication path is communicated by RJ45 (depending on networking interface 5031) with depending on networking.
Decoding chip 504 is used to target video data being decoded as original video data.
Using Hi3536 as the example of decoding chip 504, Hi3536 passes through the target that Single port desampler 503 is sent
Video data is decoded target video data, and processing capacity decodes for 1 road 8K or 4 road 4K decoding, meanwhile, pass through
HDMI_OUT interface (the second video output interface 5041) by decoded original video data export to resolution requirement compared with
High equipment is shown.
Transcoding chip 505 is used to carry out transcoding processing to original video data.
Using Xilinx Series FPGA as the example of transcoding chip 505, can by original video data according to BT.2020 into
The processing of row transcoding, meanwhile, pass through HDMI_OUT interface (the first video output interface 5051) for the original video number after transcoding
It is shown according to output to the lower equipment of resolution requirement.
Referring to Fig. 6, a kind of step flow chart of the processing method of video data of one embodiment of the invention is shown, is had
Body may include steps of:
Step 601, coding chip acquires original video data by the video input interface, by the original video number
According to target video data is encoded to, the original video data is sent to bridging chip, the target video data is sent
To interchanger.
In the scenes such as video conference, coding chip accesses the outside such as PC, camera by video input interface
Equipment, the original video datas such as operation video, current scene for acquiring PowerPoint.
In these scenes, in large-scale LED (Light-Emitting Diode, light emitting diode) dot matrix or LCD
(Liquid Crystal Display, liquid crystal display) is shown, higher for resolution requirement, therefore, original video
Data can be the high-resolution video datas such as 8K.
Coding chip carries out two kinds of processing, a kind of handle is that original video data is straight for original video data respectively
Receive and send to bridging chip, another kind processing for according to H.264, the coded formats such as H.265, original video data is encoded to mesh
Video data is marked, and target video data is sent to interchanger.
At the same time, coding chip can encapsulate the number of target video datas by regarding 2000 specifications of networking protocol as follows
According to packet:
Step 602, the original video data is sent to decoding chip by bridging chip.
Original video data high-resolution for 8K etc., bandwidth 4G-6G, and bridging chip can provide 10G's or so
Therefore bandwidth can support the transmission of original video data.
If bridging chip receives the original video data of coding chip transmission, decoding chip can be transmitted it to.
Step 603, the initial data is sent to transcoding chip when detecting original video data by decoding chip.
If decoding chip receives the original video data of bridging chip transmission, transcoding chip can be sent it to.
Step 604, transcoding chip carries out transcoding processing to the original video data, and is exported by first video
The original video data after transcoding is exported and is played by interface.
If transcoding chip receives the original video data of decoding chip transmission, transcoding processing can be carried out to it.
Hereafter, the original video data after transcoding is exported to connected equipment progress by the first video output interface
It plays.
In one embodiment of the invention, transcoding chip reduces the resolution ratio of original video data, and passes through the first view
Original video data after reducing resolution ratio is exported and is played by frequency output interface.
In embodiments of the present invention, transcoding chip according to the formats such as BT.2020 to original video data carry out transcoding processing,
Reducing resolution ratio (8K is such as reduced to 4K) therefore can quickly export broadcasting, so that user is formally playing high-resolution original
Before beginning video data, preview is carried out by the original video data of low resolution, checks whether and meets business demand.
Step 605, the target video data is sent to view networked server depending on networking interface by described by interchanger,
To be sent to another view networked terminals according to another downstream communications link depending on networked terminals configuration.
If interchanger receives the target video data of coding chip transmission, can pass through according to the agreement of view networking
Target video data is sent to view networked server depending on networking interface, can be networked eventually according to another view depending on networked server
The downstream communications link of end (as participated in the another depending on networked terminals of video conference) configuration is sent to target video data and is sent to
The other end is decoded depending on networked terminals, shows.
In practical applications, networking is regarded as the network with centralized control functions, including main control server and undernet
Equipment, which includes terminal, and one of the core idea depending on networking is, by notifying to exchange by main control server
Equipment is directed to when time downstream communications link of service matches table, and the table for being then based on the configuration carries out the transmission of data packet.
That is, including: depending on the communication means in networking
Main control server configuration is when time downstream communications link of service.
Work as time data packet of service for what source terminal was sent, is sent to target terminal (such as according to the downstream communications link
Another view networked terminals).
In embodiments of the present invention, it includes: notice when the downlink of secondary service is logical that time downstream communications link of service is worked as in configuration
Believe that switching equipment involved in link matches table.
It furthermore, include: the configured table of inquiry according to downstream communications link transmission, switching equipment is received to institute
Data packet is transmitted by corresponding port.
In the concrete realization, service includes unicast communication service and Multicast Communication Service.I.e. either cast communication is still
Unicast communication can realize the communication in view networking using the above-mentioned core idea with table-table.
As previously mentioned, view networking includes access mesh portions, in access net, which is node server, under
The grade network equipment includes access switch and terminal.
For the unicast communication service in access net, the main control server configuration is when time downlink communication chain of service
The step of road, may comprise steps of:
Sub-step S11, the service request protocol package that main control server is initiated according to source terminal are obtained when time downlink of service
Communication link information, downstream communications link information include participating in when time downlink of the main control server of service and access switch
Communication port information.
Sub-step S12, downstream communication ports information of the main control server according to control server, data packet inside it
The downlink port that setting is oriented to when time data packet of service in the table of location；And believe according to the downstream communication ports of access switch
Breath, to corresponding access switch sending port configuration order.
Sub-step S13, access switch according in port configuration command data packet addressed table inside it, setting when time
The downlink port that the data packet of service is oriented to.
For the Multicast Communication Service (such as video conference) in access net, main control server is obtained when under time service
The step of row communication link information may include following sub-step:
Sub-step S21, main control server obtain the service request agreement for the application Multicast Communication Service that target terminal is initiated
It wraps, includes the access net address of service type information, service content information and target terminal in service request protocol package.
It wherein, include service number in service content information.
Sub-step S22, main control server according to the service number in preset content-address mapping table, extraction source
The access net address of terminal.
Sub-step S23, main control server obtains the corresponding multicast address of source terminal, and distributes to target terminal；And according to
According to the access net address of service type information, source terminal and target terminal, the communication link information when time multicast services is obtained.
In embodiments of the present invention, coding chip acquires original video data by video input interface, by original video
Data encoding is target video data, and original video data is sent to bridging chip, and target video data is sent to exchange
Original video data is sent to decoding chip by machine, bridging chip, and decoding chip, will be original when detecting original video data
Data are sent to transcoding chip, and transcoding chip carries out transcoding processing to original video data, and passes through the first video output interface
Original video data after transcoding is exported and is played, interchanger is by being sent to view connection for target video data depending on networking interface
Network server, to be sent to another view networked terminals according to another downstream communications link depending on networked terminals configuration, for dividing
The higher video data of resolution is realized the acquisition under high resolution, is encoded, on the one hand, output is broadcast under the use environment of view networking
It puts, preview, on the other hand, under the conditions of bandwidth is lesser, realizes the transmission of high definition image quality.
Referring to Fig. 7, the step flow chart of the processing method of another video data of one embodiment of the invention is shown,
It can specifically include following steps:
Step 701, coding chip acquires original video data by the video input interface, by the original video number
According to target video data is encoded to, the original video data is sent to bridging chip.
Step 702, the original video data is sent to decoding chip by bridging chip.
Step 703, interchanger receives the view networked server by the view networking interface and networks according to the view
The target video data of view networked terminals that the downstream communications link of terminal configuration is sent to the view networked terminals, another.
Step 704, the target video data is sent to decoding chip by interchanger.
Step 705, the target video data is decoded as original video data by decoding chip.
In the scenes such as video conference, the view networked terminals of the other end acquire original video data, and are encoded, and will compile
Target video data after code is sent to view networked server, configures depending on networked server according to the view networked terminals to local terminal
Downstream communications link to the view networked terminals for being sent to local terminal.
Local terminal depending on networked terminals by depending on networking interface receive the other end view networked terminals target video data,
And it is forwarded to decoding chip.
Decoding chip to the target video data of the view networked terminals coding of the other end, according to H.264, the coding such as H.265
Target video data is decoded as original video data by format.
Step 706, the initial data is sent to transcoding chip when detecting original video data by decoding chip.
For the original video data that decoding chip receives, quantity may can be coding more than two-way or two-way
The original video data that chip is sent, it is also possible to for the original video data of the view networked terminals transmission of the other end, present invention reality
It is without restriction to this to apply example.
Step 707, transcoding chip carries out transcoding processing to the original video data, and is exported by first video
The original video data after transcoding is exported and is played by interface.
Step 708, decoding chip stops the original video data being sent to transcoding core when receiving switching signal
The original video data is exported by second video output interface and is played by piece.
For certain, original video data is exported after the processing of transcoding chip transcoding to lower to resolution requirement all the way
Equipment (such as television set) carry out preview, if meeting business need, the side such as remote controler or panel button can be passed through if user
Formula triggers switching signal.
At this point, decoding chip stops for original video data being sent to transcoding chip, then connect by the output of the second video
Mouth, which exports original video data to the higher equipment of resolution requirement (such as LED dot matrix), formally to be played.
Step 709, another original video data is sent to transcoding chip by decoding chip.
Step 710, transcoding chip carries out transcoding processing to another original video data, and passes through first video
Output interface plays another original video data output after transcoding.
By certain, after original video data is switched to formal play from preview all the way, decoding chip can be by another way original
Beginning video data is sent to transcoding chip, to carry out transcoding processing to another way original video data, and passes through the first video
Another way original video data after transcoding is exported to connected equipment and is played out by output interface.
In one embodiment of the invention, transcoding chip reduces the resolution ratio of another original video data, and passes through the
Another original video data after reducing resolution ratio is exported and is played by one video output interface.
It applies in the scenes such as video conference, the video data of some spokesman formally plays, the video of next spokesman
Data preview, inspection, after to be switched spokesman, the video data of next spokesman is formally played, under next spokesman view
Frequency data preview checks that the switching for realizing the video data between spokesman plays.
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. 8, a kind of structural block diagram of view networked terminals of one embodiment of the invention is shown, is located at view networking,
It is provided with coding chip 801, bridging chip 802, interchanger 803, decoding chip 804, transcoding chip 805, coding chip has
One or more video input interfaces, switch configuration have view networking interface, and transcoding chip is provided with the first video output interface；
Coding chip 801, for acquiring original video data by the video input interface, by the original video number
According to target video data is encoded to, the original video data is sent to bridging chip 802, the target video data is sent out
It send to interchanger 803；
Bridging chip 802, for the original video data to be sent to decoding chip 804；
Decoding chip 804, for when detecting original video data, the initial data to be sent to transcoding chip
805；
Transcoding chip 805 for carrying out transcoding processing to the original video data, and is exported by first video
The original video data after transcoding is exported and is played by interface；
Interchanger 803, for the target video data to be sent to view networked server depending on networking interface by described,
To be sent to another view networked terminals according to another downstream communications link depending on networked terminals configuration.
In one embodiment of the invention, transcoding chip 805 is also used to reduce the resolution of the original video data
Rate, and the original video data after reducing resolution ratio is exported by first video output interface and is played.
In one embodiment of the invention, interchanger 803 are also used to receive the view connection by the view networking interface
View that network server is sent according to the downstream communications link to the view networked terminals configuration to the view networked terminals, another joins
The target video data is sent to decoding chip 804 by the target video data of network termination；
Decoding chip 804 is also used to the target video data being decoded as original video data.
In one embodiment of the invention, decoding chip 804 is provided with the second video output interface, decoding chip 804,
It is also used to when receiving switching signal, stops the original video data being sent to transcoding chip 805, pass through described second
The original video data is exported and is played by video output interface.
In one embodiment of the invention, decoding chip 804 are also used to another original video data being sent to transcoding
Chip 805；
Transcoding chip 805 is also used to carry out transcoding processing to another original video data, and regards by described first
Frequency output interface plays another original video data output after transcoding.
In one embodiment of the invention, transcoding chip 805 is also used to reduce point of another original video data
Resolution, and another original video data output after resolution ratio will be reduced by first video output interface and broadcast
It puts.
For regarding the embodiment of networked terminals, since it is basically similar to the method embodiment, so the comparison of description
Simply, the relevent part can refer to the partial explaination of embodiments of method.
In embodiments of the present invention, coding chip acquires original video data by video input interface, by original video
Data encoding is target video data, and original video data is sent to bridging chip, and target video data is sent to exchange
Original video data is sent to decoding chip by machine, bridging chip, and decoding chip, will be original when detecting original video data
Data are sent to transcoding chip, and transcoding chip carries out transcoding processing to original video data, and passes through the first video output interface
Original video data after transcoding is exported and is played, interchanger is by being sent to view connection for target video data depending on networking interface
Network server, to be sent to another view networked terminals according to another downstream communications link depending on networked terminals configuration, for dividing
The higher video data of resolution is realized the acquisition under high resolution, is encoded, on the one hand, output is broadcast under the use environment of view networking
It puts, preview, on the other hand, under the conditions of bandwidth is lesser, realizes the transmission of high definition image quality.
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.
Processing method to a kind of video data provided by the present invention and a kind of view networked terminals above have carried out in detail
It introduces, used herein a specific example illustrates the principle and implementation of the invention, the explanation of above embodiments
It is merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to this
The thought of invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is not answered
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of processing method of video data, which is characterized in that positioned at depending on networking depending on networked terminals be provided with coding chip,
Bridging chip, interchanger, decoding chip, transcoding chip, coding chip have one or more video input interfaces, and interchanger is set
It is equipped with view networking interface, transcoding chip is provided with the first video output interface；
The described method includes:
Coding chip acquires original video data by the video input interface, and the original video data is encoded to target
Video data, is sent to bridging chip for the original video data, and the target video data is sent to interchanger；
The original video data is sent to decoding chip by bridging chip；
Decoding chip is sent to transcoding chip when detecting original video data, by the initial data；
Transcoding chip to the original video data carry out transcoding processing, and by first video output interface by transcoding it
The original video data afterwards, which exports, to be played；
The target video data is sent to view networked server depending on networking interface by described by interchanger, according to another
Downstream communications link depending on networked terminals configuration is sent to another view networked terminals.
2. the method according to claim 1, wherein the transcoding chip turns the original video data
Code processing, and the original video data after transcoding is exported by first video output interface and is played, comprising:
Transcoding chip reduces the resolution ratio of the original video data, and will be reduced and differentiated by first video output interface
The original video data after rate, which exports, to be played.
3. the method according to claim 1, which is characterized in that further include:
Interchanger receives the view networked server according to under view networked terminals configuration depending on networking interface by described
The target video data of view networked terminals that row communication link is sent to the view networked terminals, another；
The target video data is sent to decoding chip by interchanger；
The target video data is decoded as original video data by decoding chip.
4. method according to claim 1-3, which is characterized in that decoding chip is provided with the output of the second video and connects
Mouthful, further includes:
Decoding chip stops the original video data being sent to transcoding chip, by described when receiving switching signal
The original video data is exported and is played by the second video output interface.
5. according to the method described in claim 4, it is characterized by further comprising:
Another original video data is sent to transcoding chip by decoding chip；
Transcoding chip carries out transcoding processing to another original video data, and will be turned by first video output interface
Another original video data output after code plays.
6. according to the method described in claim 5, it is characterized in that, the transcoding chip to another original video data into
The processing of row transcoding, and broadcast another original video data output after transcoding by first video output interface
It puts, comprising:
Transcoding chip reduces the resolution ratio of another original video data, and will be reduced by first video output interface
Another original video data output after resolution ratio plays.
7. a kind of view networked terminals, which is characterized in that be located at view networking, be provided with coding chip, bridging chip, interchanger, solution
Code chip, transcoding chip, coding chip have one or more video input interfaces, and switch configuration has view networking interface, turn
Code chip is provided with the first video output interface；
Coding chip encodes the original video data for acquiring original video data by the video input interface
For target video data, the original video data is sent to bridging chip, the target video data is sent to exchange
Machine；
Bridging chip, for the original video data to be sent to decoding chip；
Decoding chip, for when detecting original video data, the initial data to be sent to transcoding chip；
Transcoding chip, for carrying out transcoding processing to the original video data, and will by first video output interface
The original video data after transcoding, which exports, to be played；
Interchanger, for the target video data to be sent to view networked server depending on networking interface by described, with according to
Another view networked terminals are sent to another downstream communications link depending on networked terminals configuration.
8. view networked terminals according to claim 7, which is characterized in that transcoding chip is also used to reduce the original view
The resolution ratio of frequency evidence, and it is by first video output interface that the original video data after reducing resolution ratio is defeated
It plays out.
9. view networked terminals according to claim 7, which is characterized in that
Interchanger is also used to described match according to described depending on networked terminals depending on networked server by described receive depending on networking interface
The target video data of view networked terminals that the downstream communications link set is sent to the view networked terminals, another, by the mesh
Mark video data is sent to decoding chip；
Decoding chip is also used to the target video data being decoded as original video data.
10. according to the described in any item view networked terminals of claim 7-9, which is characterized in that decoding chip is provided with the second view
Frequency output interface, decoding chip are also used to when receiving switching signal, stop the original video data being sent to transcoding
The original video data is exported by second video output interface and is played by chip.
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