CN108881818A - A kind of transmission method and device of video data - Google Patents
A kind of transmission method and device of video data Download PDFInfo
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- CN108881818A CN108881818A CN201711066239.9A CN201711066239A CN108881818A CN 108881818 A CN108881818 A CN 108881818A CN 201711066239 A CN201711066239 A CN 201711066239A CN 108881818 A CN108881818 A CN 108881818A
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- video data
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- networked terminals
- video
- view networked
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
Abstract
The embodiment of the invention provides a kind of transmission method of video data and devices, and view networked server, the first view networked terminals and the second view networked terminals are deployed in depending on networking, the method includes：The video data that the first view networked terminals are sent is received depending on networked server；The video parameter of the video data is obtained depending on networked server；Depending on networked server according to the video parameter, the video data is sent to the second view networked terminals by the downstream communications link configured to second depending on networked terminals.So that the video data of the compatible first view networked terminals acquisition of the second view networked terminals, reduces the probability for playing error, guarantees the normal play of video data.
Description
Technical field
The present invention relates to view networking technology field, transmission method and a kind of video counts more particularly to a kind of video data
According to transmitting device.
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 view networking, there are more different video capture devices, every video capture device may all have oneself
Parameter, according to the parameter acquisition video data.
But the video data compatibility that video playback apparatus acquires video sampling equipment is poor, video sampling equipment
The video data of acquisition plays in video playback apparatus is easy error, and may cause can not play.
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 transmission method of the video data to solve the above problems and a kind of corresponding transmitting device of video data.
According to one aspect of the present invention, a kind of transmission method of video data is provided, is deployed with view in depending on networking
Networked server, the first view networked terminals and the second view networked terminals, the method includes：
The video data that the first view networked terminals are sent is received depending on networked server；
The video parameter of the video data is obtained depending on networked server；
Depending on networked server according to the video parameter, the video data is passed through to the second view networked terminals configuration
Downstream communications link is sent to the second view networked terminals.
Optionally, the view networked server is according to the video parameter, by the video data by joining to the second view
The downstream communications link of network termination configuration is sent to the second view networked terminals, including：
Judge whether the video parameter is the target video parameter for meeting the second view networked terminals；
If so, the video data is sent to the by the downstream communications link to the second view networked terminals configuration
Two view networked terminals；
If it is not, then carrying out transcoding processing to the video data according to the target video parameter, target video number is obtained
According to；
The target video data is sent to the second view by the downstream communications link configured to second depending on networked terminals
Networked terminals.
Optionally, the video parameter includes following at least one：
Length and width, picture format, coded format；
The target video parameter includes following at least one：
Target is long, target is wide, target image format, target code format；
The target video parameter for judging the video parameter and whether meeting the second view networked terminals, including：
Judge the length and the target is long, wide wide with the target, the described image format and the target image
Whether format, the coded format and at least one of the target code format are identical；
If so, determining that the video parameter is to meet the target video parameter of the second view networked terminals；
If not, it is determined that the video parameter is not to meet the target video parameter of the second view networked terminals.
Optionally, described that transcoding processing is carried out to the video data according to the target video parameter, obtain target view
Frequency evidence, including：
The video data is decoded processing, obtains source video data；
Coded treatment is carried out to the source video data according to the target video parameter, obtains target video data.
Optionally, described that the video data is decoded processing, source video data are obtained, including：
Read the coded format in the video parameter；
Processing is decoded to the video data according to the coded format, obtains source video data.
According to another aspect of the present invention, a kind of transmitting device of video data is provided, is deployed with view in depending on networking
Networked server, the first view networked terminals and the second view networked terminals, described device are located in view networked server, including：
Video data receiving module, the video data sent for receiving the first view networked terminals；
Video parameter obtains module, for obtaining the video parameter of the video data；
Video data sends module, for according to the video parameter, the video data to be passed through to the second view networking
The downstream communications link of terminal configuration is sent to the second view networked terminals.
Optionally, the video data transmission module includes：
Parameter judging submodule, for judging whether the video parameter is the target video for meeting the second view networked terminals
Parameter；If so, the first sending submodule is called, if it is not, transcoding is then called to handle submodule；
First sending submodule, for the video data to be passed through the downlink communication chain to the second view networked terminals configuration
Road is sent to the second view networked terminals；
Transcoding handles submodule, for carrying out transcoding processing to the video data according to the target video parameter, obtains
Obtain target video data；
Second sending submodule, for leading to the target video data by the downlink configured to second depending on networked terminals
Letter link is sent to the second view networked terminals.
Optionally, the video parameter includes following at least one：
Length and width, picture format, coded format；
The target video parameter includes following at least one：
Target is long, target is wide, target image format, target code format；
The parameter judging submodule includes：
Project judging unit, for judging that the length and the target are long, the wide and target is wide, described image lattice
Whether formula and the target image format, the coded format and at least one of the target code format are identical；If so,
The first determination unit is then called, if it is not, then calling the second determination unit；
First determination unit, for determining that the video parameter is to meet the target video parameter of the second view networked terminals；
Second determination unit is the target video ginseng for meeting the second view networked terminals for determining the video parameter not
Number.
Optionally, the transcoding processing submodule includes：
Codec processing unit obtains source video data for the video data to be decoded processing；
Coding processing unit is obtained for carrying out coded treatment to the source video data according to the target video parameter
Obtain target video data.
Optionally, the codec processing unit includes：
Coded format reading subunit, for reading the coded format in the video parameter；
Source video data obtain subelement, for being decoded processing to the video data according to the coded format,
Obtain source video data.
The embodiment of the present invention includes following advantages：
In embodiments of the present invention, the video data that the first view networked terminals are sent is received depending on networked server, parses it
Video parameter, comparison second are performed corresponding processing depending on the broadcasting demand of networked terminals, are played to will meet the second view networking
The video data of demand is carried out according to the second view networked terminals are sent to depending on the downstream communications link that networked terminals configure to second
It plays, so that the video data of the compatible first view networked terminals acquisition of the second view networked terminals, reduces the probability for playing error,
Guarantee the normal play of video data.
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 transmission method of video data of one embodiment of the invention；
Fig. 6 is a kind of view networked server of one embodiment of the invention and the connection schematic diagram of view networked terminals；
Fig. 7 is a kind of structural block diagram of the transmitting device of 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 depending on the equipment in networking：Server, 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 is：
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 if meeting the following conditions：1) port
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 be 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
The data packet of access net mainly includes 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.
Based on the above-mentioned characteristic of view networking, one of the core concepts of the embodiments of the present invention is proposed, it then follows regard the association of networking
View, in the transmission process of video data, adopts video capture device according to the requirement of video playback apparatus depending on networked server
The video data of collection carries out transcoding processing.
Referring to Fig. 5, a kind of step flow chart of the transmission method of video data of one embodiment of the invention is shown, it should
Method can be applied in view networking, can specifically include following steps：
Step 501, the video data that the first view networked terminals are sent is received depending on networked server.
As shown in fig. 6, being deployed with view networked server 610, first in depending on networking 600 regards networked terminals 621 and second
Depending on networked terminals 622.
In the concrete realization, first networked terminals 621 are regarded and second to regard networked terminals 622 can be set-top box
Box on (SetTopBox, STB), commonly referred to as set-top box or machine is the equipment of connection a television set and outside source, it
The digital signal of compression can be changed into television content, and shown on a television set.
In general, first can connect other equipment 630, example depending on networked terminals 622 depending on networked terminals 621 and second
Such as, which can be camera and microphone, and for acquiring video data and audio data, which may be
Television set is used for playing video data and audio data.
It should be noted that first is in contrast, in some business field depending on networked terminals depending on networked terminals and second
Jing Zhong, some can be used as the first view networked terminals acquisition video data, audio data depending on networked terminals, and in other business fields
Jing Zhong, this can be used as second depending on networked terminals and plays out depending on networked terminals output video data, audio data.
It, can be by regarding networking as follows for view networked server, the first view networked terminals, the second view networked terminals
The data packet of 2000 specification packaged source video datas of agreement, to be transmitted：
Step 502, the video parameter of the video data is obtained depending on networked server.
Depending on networked server can call FFmpeg (it is a set of can be used to record, converted digital audio, video, and can general
Its open source computer program for being converted into stream) video parameter is parsed from video data.
In the concrete realization, video parameter includes following at least one：
Length and width, picture format, coded format.
Certainly, above-mentioned video parameter is intended only as example, in implementing the embodiments of the present invention, can set according to the actual situation
Other video parameters, such as code stream information are set, the embodiments of the present invention are not limited thereto.In addition, other than above-mentioned video parameter,
Those skilled in the art can also use other video parameters according to actual needs, and the embodiment of the present invention does not also limit this
System.
Step 503, the video data is passed through whole to the second view networking depending on networked server according to the video parameter
The downstream communications link of end configuration is sent to the second view networked terminals.
In embodiments of the present invention, it may determine that the view of the video data of the first view networked terminals acquisition depending on networked server
Frequency parameter, if meet the broadcast request of the second view networked terminals, to be transferred to the networking of the second view after performing corresponding processing
Terminal.
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
Second view networked terminals).
In embodiments of the present invention, it configures when time downstream communications link of service includes：Notice is logical when time downlink of service
Believe that switching equipment involved in link matches table；
Furthermore, include according to downstream communications link transmission：Configured table is inquired, 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 one embodiment of the invention, step 503 may include following sub-step：
Sub-step S31 judges whether the video parameter is the target video parameter for meeting the second view networked terminals；If
It is then to execute sub-step S32, if it is not, then executing sub-step S33.
The video parameter that the second target video parameter for regarding networked terminals requires as playing video data can be networked by view
Server and the second view networked terminals are negotiated, to be registered in view networked server, can also be networked by user setting in view
In server, the embodiments of the present invention are not limited thereto.
In the concrete realization, with video parameter correspondingly, target video parameter includes following at least one：
Target long (such as 1280), target wide (such as 720), target image format (such as YUV 420P), target code format are (such as
H.264)。
Then in embodiments of the present invention, it can be determined that long wide with target length and width and target, picture format and target image lattice
Whether at least one of formula, coded format and target code format are identical.
If so, determining that video parameter is to meet the target video parameter of the second view networked terminals.
If not, it is determined that video parameter is not to meet the target video parameter of the second view networked terminals.
Sub-step S32 is sent to by the video data by the downstream communications link to the second view networked terminals configuration
Second view networked terminals.
If video parameter is to meet the target video parameter of the second view networked terminals, the first view networked terminals acquisition
Video data is sent directly to the second view networked terminals, second exports depending on networked terminals to connected without carrying out transcoding processing
Equipment plays out.
Sub-step S33 carries out transcoding processing to the video data according to the target video parameter, obtains target video
Data.
Sub-step S34, by the target video data by sending out the downstream communications link of the second view networked terminals configuration
It send to the second view networked terminals.
If video parameter is not to meet the target video parameter of the second view networked terminals, according to the second view networked terminals
Target video parameter (such as target is long, target is wide, target image format, target code format) to video data carry out transcoding at
Reason is retransmited to the second view networked terminals, and second exports to connected equipment depending on networked terminals and play out.
In one embodiment of the invention, sub-step S33 can further include following sub-step：
The video data is decoded processing, obtains source video data by sub-step S331.
Sub-step S332 carries out coded treatment to the source video data according to the target video parameter, obtains target
Video data.
The video data for being transferred to view networked server depending on networked terminals due to first is usually to pass through coding,
Corresponding decoder can be called to be decoded the video data depending on networked server, source video data be obtained, according still further to mesh
It marks video parameter and coded treatment is carried out to source video data, obtain target video data.
In decoding, the coded format in video parameter can be read, video data is carried out according to the coded format
Decoding process obtains source video data.
In embodiments of the present invention, the video data that the first view networked terminals are sent is received depending on networked server, parses it
Video parameter, comparison second are performed corresponding processing depending on the broadcasting demand of networked terminals, are played to will meet the second view networking
The video data of demand is carried out according to the second view networked terminals are sent to depending on the downstream communications link that networked terminals configure to second
It plays, so that the video data of the compatible first view networked terminals acquisition of the second view networked terminals, reduces the probability for playing error,
Guarantee the normal play of video data.
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 transmitting device of video data of one embodiment of the invention is shown, is being regarded
View networked server, the first view networked terminals and the second view networked terminals are deployed in networking, described device is located at view networking clothes
It is engaged in device, can specifically include following module：
Video data receiving module 701, the video data sent for receiving the first view networked terminals；
Video parameter obtains module 702, for obtaining the video parameter of the video data；
Video data sends module 703, for according to the video parameter, the video data to be passed through to the second view connection
The downstream communications link of network termination configuration is sent to the second view networked terminals.
In one embodiment of the invention, the video data transmission module 703 includes：
Parameter judging submodule, for judging whether the video parameter is the target video for meeting the second view networked terminals
Parameter；If so, the first sending submodule is called, if it is not, transcoding is then called to handle submodule；
First sending submodule, for the video data to be passed through the downlink communication chain to the second view networked terminals configuration
Road is sent to the second view networked terminals；
Transcoding handles submodule, for carrying out transcoding processing to the video data according to the target video parameter, obtains
Obtain target video data；
Second sending submodule, for leading to the target video data by the downlink configured to second depending on networked terminals
Letter link is sent to the second view networked terminals.
In one example of an embodiment of the present invention, the video parameter includes following at least one：
Length and width, picture format, coded format；
The target video parameter includes following at least one：
Target is long, target is wide, target image format, target code format；
The parameter judging submodule includes：
Project judging unit, for judging that the length and the target are long, the wide and target is wide, described image lattice
Whether formula and the target image format, the coded format and at least one of the target code format are identical；If so,
The first determination unit is then called, if it is not, then calling the second determination unit；
First determination unit, for determining that the video parameter is to meet the target video parameter of the second view networked terminals；
Second determination unit is the target video ginseng for meeting the second view networked terminals for determining the video parameter not
Number.
In one embodiment of the invention, the transcoding processing submodule includes：
Codec processing unit obtains source video data for the video data to be decoded processing；
Coding processing unit is obtained for carrying out coded treatment to the source video data according to the target video parameter
Obtain target video data.
In one embodiment of the invention, the codec processing unit includes：
Coded format reading subunit, for reading the coded format in the video parameter；
Source video data obtain subelement, for being decoded processing to the video data according to the coded format,
Obtain source video data.
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.
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.
Above to a kind of transmission method and a kind of transmitting device of video data of video data provided by the present invention, into
It has gone and has been discussed in detail, used herein a specific example illustrates the principle and implementation of the invention, the above implementation
The explanation of example is merely used to help understand method and its core concept of the invention；Meanwhile for the general technology people of this field
Member, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion this explanation
Book content should not be construed as limiting the invention.
Claims (10)
1. a kind of transmission method of video data, which is characterized in that be deployed with view networked server, the first view connection in depending on networking
Network termination and the second view networked terminals, the method includes：
The video data that the first view networked terminals are sent is received depending on networked server；
The video parameter of the video data is obtained depending on networked server；
Depending on networked server according to the video parameter, the video data is passed through into the downlink to the second view networked terminals configuration
Communication link is sent to the second view networked terminals.
2. the method according to claim 1, wherein the view networked server is incited somebody to action according to the video parameter
The video data is sent to the second view networked terminals by the downstream communications link configured to second depending on networked terminals, including：
Judge whether the video parameter is the target video parameter for meeting the second view networked terminals；
If so, the video data is sent to the second view by the downstream communications link to the second view networked terminals configuration
Networked terminals；
If it is not, then carrying out transcoding processing to the video data according to the target video parameter, target video data is obtained；
By the target video data by being sent to the networking of the second view depending on the downstream communications link that networked terminals configure to second
Terminal.
3. according to the method described in claim 2, it is characterized in that,
The video parameter includes following at least one：
Length and width, picture format, coded format；
The target video parameter includes following at least one：
Target is long, target is wide, target image format, target code format；
The target video parameter for judging the video parameter and whether meeting the second view networked terminals, including：
Judge the length and the target is long, wide wide with the target, the described image format and the target image format,
Whether at least one of the coded format and the target code format are identical；
If so, determining that the video parameter is to meet the target video parameter of the second view networked terminals；
If not, it is determined that the video parameter is not to meet the target video parameter of the second view networked terminals.
4. according to the method in claim 2 or 3, which is characterized in that it is described according to the target video parameter to the view
Frequency obtains target video data according to transcoding processing is carried out, including：
The video data is decoded processing, obtains source video data；
Coded treatment is carried out to the source video data according to the target video parameter, obtains target video data.
5. according to the method described in claim 4, obtaining it is characterized in that, described be decoded processing for the video data
Source video data, including：
Read the coded format in the video parameter；
Processing is decoded to the video data according to the coded format, obtains source video data.
6. a kind of transmitting device of video data, which is characterized in that be deployed with view networked server, the first view connection in depending on networking
Network termination and the second view networked terminals, described device are located in view networked server, including：
Video data receiving module, the video data sent for receiving the first view networked terminals；
Video parameter obtains module, for obtaining the video parameter of the video data；
Video data sends module, for according to the video parameter, the video data to be passed through to the second view networked terminals
The downstream communications link of configuration is sent to the second view networked terminals.
7. device according to claim 6, which is characterized in that the video data sends module and includes：
Parameter judging submodule, for judging whether the video parameter is the target video ginseng for meeting the second view networked terminals
Number；If so, the first sending submodule is called, if it is not, transcoding is then called to handle submodule；
First sending submodule, for by the video data by second view networked terminals configuration downstream communications link,
It is sent to the second view networked terminals；
Transcoding handles submodule, for carrying out transcoding processing to the video data according to the target video parameter, obtains mesh
Mark video data；
Second sending submodule, for the target video data to be passed through the downlink communication chain to the second view networked terminals configuration
Road is sent to the second view networked terminals.
8. device according to claim 7, which is characterized in that
The video parameter includes following at least one：
Length and width, picture format, coded format；
The target video parameter includes following at least one：
Target is long, target is wide, target image format, target code format；
The parameter judging submodule includes：
Project judging unit, for judge the length and the target is long, wide wide with the target, the described image format with
Whether the target image format, the coded format and at least one of the target code format are identical；If so, adjusting
With the first determination unit, if it is not, then calling the second determination unit；
First determination unit, for determining that the video parameter is to meet the target video parameter of the second view networked terminals；
Second determination unit is the target video parameter for meeting the second view networked terminals for determining the video parameter not.
9. device according to claim 7 or 8, which is characterized in that the transcoding handles submodule and includes：
Codec processing unit obtains source video data for the video data to be decoded processing；
Coding processing unit obtains mesh for carrying out coded treatment to the source video data according to the target video parameter
Mark video data.
10. device according to claim 9, which is characterized in that the codec processing unit includes：
Coded format reading subunit, for reading the coded format in the video parameter；
Source video data obtain subelement, for being decoded processing to the video data according to the coded format, obtain
Source video data.
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Address after: 100000 Dongcheng District, Beijing, Qinglong Hutong 1, 1103 house of Ge Hua building. Applicant after: Video Link Power Information Technology Co., Ltd. Address before: 100000 Beijing Dongcheng District Qinglong Hutong 1 Song Hua Building A1103-1113 Applicant before: BEIJING VISIONVERA INTERNATIONAL INFORMATION TECHNOLOGY CO., LTD. |
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Application publication date: 20181123 |