CN106549912B - A kind of playback method and system of video data - Google Patents

A kind of playback method and system of video data Download PDF

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Publication number
CN106549912B
CN106549912B CN201510596033.1A CN201510596033A CN106549912B CN 106549912 B CN106549912 B CN 106549912B CN 201510596033 A CN201510596033 A CN 201510596033A CN 106549912 B CN106549912 B CN 106549912B
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China
Prior art keywords
playing request
server
networked terminals
depending
video
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CN201510596033.1A
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Chinese (zh)
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CN106549912A (en
Inventor
杨春晖
胡宇惠
王艳辉
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视联动力信息技术股份有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements or protocols for real-time communications
    • H04L65/60Media handling, encoding, streaming or conversion
    • H04L65/601Media manipulation, adaptation or conversion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/23424Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving splicing one content stream with another content stream, e.g. for inserting or substituting an advertisement

Abstract

The embodiment of the invention provides a kind of playback method of video data and system, the method is applied in view networking, which comprises association turns server and receives the first playing request that the teaching server being located in IP network is sent;Association turns server and first playing request is converted into the second playing request;Association turns server and second playing request is sent to view networked server;Depending on networked server according to second playing request, video flowing is obtained from the first view networked terminals;Depending on networked server according to the first downstream communications link to the second view networked terminals configuration, the video stream is played out to second depending on networked terminals.The characteristic of application view networking of the embodiment of the present invention, substantially increases the safety of the communication process under the scenes such as operation, also, be scheduled operation to depending on networking in IP network, substantially increases the simplicity of operation.

Description

A kind of playback method and system of video data

Technical field

The present invention relates to the technical field of view networking, playback method and a kind of video more particularly to a kind of video data The play system of data.

Background technique

With the fast development of the network technology, video teaching the life of user, work, in terms of it is widely available.

In communication process, in the application scenarios such as, some user's demonstration operation, generally requires and move camera The operations such as dynamic, focusing.

Due to the limitation of Internet protocol, the communication process safety of video is poor, is easy by hacker and virus Attack, influences to communicate, and under the scenes such as operation, may cause immeasurable loss.

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 playback method of the video data to solve the above problems and a kind of corresponding play system of video data.

To solve the above-mentioned problems, the embodiment of the invention discloses a kind of playback method of video data, the method is answered For regarding in networking, which comprises

Association turns server and receives the first playing request that the teaching server being located in IP network is sent;

Association turns server and first playing request is converted into the second playing request;

Association turns server and second playing request is sent to view networked server;

Depending on networked server according to second playing request, video flowing is obtained from the first view networked terminals;

Depending on networked server according to the first downstream communications link to the second view networked terminals configuration, the video flowing is sent out It send to second and is played out depending on networked terminals.

Preferably, first playing request receives the third of the transmission of the client in IP network in teaching server It is generated when playing request.

Preferably, the association turns the step that server receives the first playing request that the teaching server being located in IP network is sent Suddenly include:

Judge whether to bind with the teaching server being located in IP network depending on networked server;It is located at IP network if so, receiving In teaching server send the first playing request.

Preferably, the association turns the step of first playing request is converted into the second playing request by server and includes:

The first play parameter is extracted from first playing request;

First play parameter is mapped as the second play parameter;

The second playing request is generated according to second play parameter.

Preferably, the view networked server obtains video from the first view networked terminals according to second playing request The step of stream includes:

According to the second downstream communications link to the first view networked terminals configuration, second playing request is sent to the One view networked terminals;

Receive first view networked terminals by one or more audio data obtained according to second playing request, with And the video flowing that one or more video data is packaged into.

It preferably, include vision signal adjusting parameter in second playing request, the vision signal adjusting parameter is used In the camera that adjustment is connected with first depending on networked terminals.

Preferably, described the step of playing out the video stream to second depending on networked terminals, includes:

By the video stream to the second view networked terminals, to carry out split screen broadcasting according to the span mode of setting.

The embodiment of the invention also discloses a kind of play system of video data, the system is applied in view networking, institute Stating system includes that association turns server and view networked server;Wherein,

The association turns server and includes:

Playing request receiving module, the first playing request sent for receiving the teaching server being located in IP network;

Playing request conversion module, for first playing request to be converted into the second playing request;

Playing request sending module turns server for association and second playing request is sent to view networked server;

It is described to include: depending on networked server

Video flowing obtains module, for obtaining video flowing from the first view networked terminals according to second playing request;

Video stream module will be described for regarding the first downstream communications link that networked terminals configure according to second Video stream is played out to second depending on networked terminals.

In the concrete realization, first playing request can receive the client in IP network in teaching server It is generated when the third playing request of transmission.

In the concrete realization, first playing request can receive the client in IP network in teaching server It is generated when the third playing request of transmission.

Preferably, the playing request conversion module includes:

Play parameter extracting sub-module, for extracting the first play parameter from first playing request;

Play parameter mapping submodule, for first play parameter to be mapped as the second play parameter;

Playing request generates submodule, for generating the second playing request according to second play parameter.

Preferably, the video flowing acquisition module includes:

Playing request issues submodule, will for regarding the second downstream communications link that networked terminals configure according to first Second playing request is sent to the first view networked terminals;

Video flowing is packaged acquisition submodule, will obtain according to second playing request for receiving first depending on networked terminals One or more audio data and the video flowing that is packaged into of one or more video data.

It preferably, include vision signal adjusting parameter in second playing request, the vision signal adjusting parameter is used In the camera that adjustment is connected with first depending on networked terminals.

Preferably, the video stream module includes:

Split screen submodule, for the video stream to second to be regarded networked terminals, according to the span mode of setting Carry out split screen broadcasting.

The embodiment of the present invention includes following advantages:

The association of the embodiment of the present invention turns server and is converted into regarding to the first playing request of the teaching server in IP network The second readable playing request of networked server, so obtain first view networked terminals video flowing, call second depending on network into Row plays, and using the characteristic of view networking, substantially increases the safety of the communication process under the scenes such as operation, also, in IP network In to depending on networking be scheduled operation, substantially increase the simplicity of operation.

Detailed description of the invention

Fig. 1 is a kind of networking schematic diagram of view networking of the invention;

Fig. 2 is a kind of hardware structural diagram of node server of the invention;

Fig. 3 is a kind of hardware structural diagram of access switch of the invention;

Fig. 4 is the hardware structural diagram that a kind of Ethernet association of the invention turns gateway;

Fig. 5 is a kind of step flow chart of the playback method embodiment of video data of the invention;

Fig. 6 is a kind of structural block diagram of the play system embodiment of video data 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.

Based on the above-mentioned characteristic of view networking, one of design of the embodiment of the present invention is proposed, it then follows the agreement for regarding networking, by Association turns playing request of the server forwarding from IP network, obtains video flowing, hair from the first view networked terminals by view networked server It send to second and is played out depending on networked terminals.

Referring to Fig. 5, a kind of step flow chart of the playback method embodiment of video data of the invention, this method are shown It can be applied in view networking, can specifically include following steps:

Step 501, association turns the first playing request that server receives the teaching server transmission being located in IP network;

In the concrete realization, turn to deploy mobility protocol transition service on server in association, it is carrying view networking The bridge of equipment and IP network communication between devices, supports double netcard access, the connection view networking of one end network interface card, and one end network interface card is connected to IP Net.

Background program and WebService service, client can be disposed on teaching server can pass through PC On browser (client) or the client in mobile device directly access use.

First playing request is when teaching server receives the third playing request of the transmission of the client in IP network It generates.

By taking mobile device as an example, for example, mobile phone, tablet computer, personal digital assistant, wearable device (such as glasses, wrist-watch Deng) etc., the embodiments of the present invention are not limited thereto.

The operating system of the mobile device may include Android (Android), IOS, Windows Phone, Windows etc. Deng.

Wherein, there is play parameter in third playing request, including video source address, vision signal adjusting parameter are (such as Dollying head, camera focus etc.), (a such as screen is divided into multiple regions and shows multi-channel video signal, multiple span mode Screen shows vision signal etc. all the way jointly) etc..

In the scenes such as educational surgery demonstration, configuration view networked terminals in operating room and in Demonstration Classroom, doctor is in operating room It performs the operation, assistant can be adjusted vision signal by the tablet computer of IOS system, such as mobile, focusing, with side Just doctor is performed the operation by the display that is connected with depending on networked terminals auxiliary, meanwhile, by Demonstration Classroom with view networked terminals Connected display carries out educational surgery demonstration to other users.

In order to guarantee the safety of view networking, positioned at depending on can decide whether and be located at IP network depending on networked server in networking In teaching server binding;If so, the first playing request that the teaching server being located in IP network is sent is received, otherwise, Rejection is located at the first playing request that the teaching server in IP network is sent.

Step 502, association turns server first playing request is converted into the second playing request;

Due to regarding the network different as two from IP network of networking, belong to IP network depending on cannot generally directly read in networking Agreement, such as ICP/IP protocol, therefore, it is necessary to convert to it.

Furthermore, association turns server can extract the first play parameter from the first playing request, such as video source Location, vision signal adjusting parameter, span mode etc..

The first play parameter is mapped as the second play parameter according to preset code conversion table;

For example, it is assumed that code conversion table is as follows:

001 --- EC5278: view networked terminals obtain stream

002 --- EC5279: view networked terminals send stream

003 --- EC5280: view networked terminals stop

If being resolved in IP network 001 the first play parameter, it is desirable to it depending on the thing that networked devices are done is exactly to obtain flow data, The second play parameter of EC5278 in view networking can be then mapped as.

Upon the transition, the second playing request can be generated according to the second play parameter, is converted into the readable finger of view networking It enables.

Step 503, association turns server second playing request is sent to view networked server;

Association turn server by the first playing request be converted into being located at view network in second broadcast depending on networked server is readable After putting request, view networked server can be sent to and carry out next step operation.

Step 504, depending on networked server according to second playing request, video flowing is obtained from the first view networked terminals;

In the concrete realization, first regard networked terminals and second regard networked terminals can as set-top box (SetTopBox, STB), box commonly referred to as on set-top box or machine is the equipment of connection a television set and outside source, it can be by compression Digital signal changes into television content, and shows on a television set.

In general, set-top box can connect camera and microphone, it is more for acquiring video data and audio data etc. Media data also can connect television set, for multi-medium datas such as playing video data and audio datas.

In one embodiment of the invention, step 504 may include following sub-step:

Sub-step S11 is played described second and is asked according to the second downstream communications link to the first view networked terminals configuration It asks and is sent to the first view networked terminals;

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 First 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 net includes access mesh portions, in access net, which is node server, Undernet 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 S111, the service request protocol package that main control server is initiated according to source terminal are obtained when under time service Row communication link information, downstream communications link information include participating in when under time main control server and access switch of service Row communication port information;

Sub-step S112, 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 address table;And believe according to the downstream communication ports of access switch Breath, to corresponding access switch sending port configuration order;

Sub-step S113, access switch according in port configuration command data packet addressed table inside it, work as by setting The downlink port that the data packet of secondary 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 S114, 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;Wherein, It include service number in service content information;

Sub-step S115, main control server according to the service number in preset content-address mapping table, extraction source The access net address of terminal;

Sub-step S116, main control server obtains the corresponding multicast address of source terminal, and distributes to target terminal;And According to service type information, the access net address of source terminal and target terminal, the communication link information when time multicast services is obtained.

Sub-step S12 receives one or more sound that the first view networked terminals will be obtained according to second playing request The video flowing that frequency evidence and one or more video data are packaged into.

Positioned at first depending on networking one or more can be acquired from connected one or more cameras depending on networked terminals Video data acquires one or more audio data from connected one or more microphones.

Due to be broadcast live under the scenes such as educational surgery demonstration with the business such as program request, need support the video flowing all the way of Polymera (such as TS stream) transmission, allows and flexibly checks different video signal and switching depending on the client (such as browser) in networked terminals, IP network Span mode.

To realize this demand, can network using the MUX video flowing sealed in unit at video interflow, the deployed with devices in view In environment, the relevant vision signal of all educational surgery demonstrations is collected, by their uniform packings at video flowing all the way (such as TS stream), and point It sends out.

It in one example, include vision signal adjusting parameter in the second playing request, vision signal adjusting parameter is used for Adjust the camera being connected with first depending on networked terminals, such as mobile, focusing.

In embodiments of the present invention, first the first video data can be sent to the second view networking eventually depending on networked terminals End, second can drive coupled playback equipment (such as television set) to play out depending on networked terminals.

In view networking, first can send video flowing, the specification of 2002 agreement according to 2002 agreements depending on networked terminals It can be as shown in the table:

Specifically, video flowing can be encoded by special interface, video data is then packaged into 2002 associations Then the video bag of 2002 agreements is sent to view networked server by the video bag of view, receive the video bag depending on networked server It is transmitted to the second view networked terminals later.

It step 505, will be described depending on networked server according to the first downstream communications link to the second view networked terminals configuration Video stream is played out to second depending on networked terminals.

In the concrete realization, video stream to second is regarded into networked terminals, the second view networked terminals depending on networked server Connectivity port with television set be it is pre-configured, depending on networked server schedule video stream issue view networked terminals some Port, it can display is called to play video flowing.

It in one example, can be by video stream to the second view networked terminals, according to setting depending on networked server Span mode carry out split screen broadcasting.

The association of the embodiment of the present invention turns server and is converted into regarding to the first playing request of the teaching server in IP network The second readable playing request of networked server, so obtain first view networked terminals video flowing, call second depending on network into Row plays, and using the characteristic of view networking, substantially increases the safety of the communication process under the scenes such as operation, also, in IP network In to depending on networking be scheduled operation, substantially increase the simplicity of operation.

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. 6, a kind of structural block diagram of the play system embodiment of video data of the invention, the system are shown Applied in view networking, the system comprises associations to turn server 600 and view networked server 610, wherein

The association turns server 600 and can specifically include following module:

Playing request receiving module 601, the first playing request sent for receiving the teaching server being located in IP network;

Playing request conversion module 602, for first playing request to be converted into the second playing request;

Playing request sending module 603 turns server for association and second playing request is sent to view the Internet services Device 610;

Described depending on networked server 610 may include following module:

Video flowing obtains module 611, for obtaining video from the first view networked terminals according to second playing request Stream;

Video stream module 612, for regarding the first downstream communications link that networked terminals configure according to second, by institute It states video stream and is played out to second depending on networked terminals.

In the concrete realization, first playing request can receive the client in IP network in teaching server It is generated when the third playing request of transmission.

In one embodiment of the invention, the playing request receiving module 601 may include following submodule

Judging submodule is bound, for judging whether to bind with the teaching server being located in IP network depending on networked server; If so, calling receiving submodule;

Receiving submodule, the first playing request sent for receiving the teaching server being located in IP network.

In one embodiment of the invention, the playing request conversion module 602 may include following submodule:

Play parameter extracting sub-module, for extracting the first play parameter from first playing request;

Play parameter mapping submodule, for first play parameter to be mapped as the second play parameter;

Playing request generates submodule, for generating the second playing request according to second play parameter.

In one embodiment of the invention, it may include following submodule that the video flowing, which obtains module 611:

Playing request issues submodule, will for regarding the second downstream communications link that networked terminals configure according to first Second playing request is sent to the first view networked terminals;

Video flowing is packaged acquisition submodule, will obtain according to second playing request for receiving first depending on networked terminals One or more audio data and the video flowing that is packaged into of one or more video data.

It in one embodiment of the invention, include vision signal adjusting parameter, the view in second playing request Frequency signal adjusting parameter is for adjusting the camera being connected with first depending on networked terminals.

In one embodiment of the invention, the video stream module 612 may include following submodule:

Split screen submodule, for the video stream to second to be regarded networked terminals, according to the span mode of setting Carry out split screen broadcasting.

For system embodiments, 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.

Playback method to a kind of video data provided by the present invention and a kind of play system of video data above, 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 (4)

1. a kind of playback method of video data, which is characterized in that the method is applied in view networking, which comprises
Association turns server and receives the first playing request that the teaching server being located in IP network is sent;
Association turns server and first playing request is converted into the second playing request;
Association turns server and second playing request is sent to view networked server;
Depending on networked server according to second playing request, video flowing is obtained from the first view networked terminals;
Depending on networked server according to the first downstream communications link to the second view networked terminals configuration, extremely by the video stream Second plays out depending on networked terminals;
It include vision signal adjusting parameter in second playing request, the vision signal adjusting parameter is for adjusting and first The camera being connected depending on networked terminals;
The association turns the step of first playing request is converted into the second playing request by server and includes:
The first play parameter is extracted from first playing request;
First play parameter is mapped as the second play parameter;
The second playing request is generated according to second play parameter;
The view networked server is wrapped according to second playing request from first depending on the step of networked terminals acquisition video flowing It includes:
According to the second downstream communications link to the first view networked terminals configuration, second playing request is sent to the first view Networked terminals;
Receive one or more audio data and one that the first view networked terminals will be obtained according to second playing request The video flowing that road or multi-path video data are packaged into;
Described the step of playing out the video stream to second depending on networked terminals includes:
By the video stream to the second view networked terminals, to carry out split screen broadcasting according to the span mode of setting.
2. the method according to claim 1, wherein first playing request receives in place in teaching server It is generated when the third playing request that the client in IP network is sent.
3. the method according to claim 1, wherein the association, which turns server, receives the teaching clothes being located in IP network Business device send the first playing request the step of include:
Judge whether to bind with the teaching server being located in IP network depending on networked server;It is located in IP network if so, receiving The first playing request that teaching server is sent.
4. a kind of play system of video data, which is characterized in that the system is applied in view networking, and the system comprises associations Turn server and view networked server;Wherein,
The association turns server and includes:
Playing request receiving module, the first playing request sent for receiving the teaching server being located in IP network;
Playing request conversion module, for first playing request to be converted into the second playing request;
Playing request sending module turns server for association and second playing request is sent to view networked server;
It is described to include: depending on networked server
Video flowing obtains module, for obtaining video flowing from the first view networked terminals according to second playing request;
It include vision signal adjusting parameter in second playing request, the vision signal adjusting parameter is for adjusting and first The camera being connected depending on networked terminals;
The playing request conversion module includes:
Play parameter extracting sub-module, for extracting the first play parameter from first playing request;
Play parameter mapping submodule, for first play parameter to be mapped as the second play parameter;
Playing request generates submodule, for generating the second playing request according to second play parameter;
The video flowing obtains module
Playing request issues submodule, will be described for regarding the second downstream communications link that networked terminals configure according to first Second playing request is sent to the first view networked terminals;
Video flowing is packaged acquisition submodule, one will obtained according to second playing request for receiving the first view networked terminals The video flowing that road or multi-path audio-frequency data and one or more video data are packaged into;
Video stream module, for regarding the first downstream communications link that networked terminals configure according to second, by the video Stream is sent to second and plays out depending on networked terminals;
The video stream module includes:
Split screen submodule, for the video stream to second to be regarded networked terminals, to be carried out according to the span mode of setting Split screen plays.
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CN108882021B (en) * 2017-10-20 2019-06-28 视联动力信息技术股份有限公司 A kind of video broadcasting method and device
CN108881790A (en) * 2017-10-30 2018-11-23 北京视联动力国际信息技术有限公司 A kind of control method and device of video conference
CN108965780A (en) * 2017-11-30 2018-12-07 北京视联动力国际信息技术有限公司 A kind of display methods and system of monitored picture
CN108881933B (en) * 2017-12-26 2019-06-11 视联动力信息技术股份有限公司 A kind of live streaming treating method and apparatus of view networking
CN108881796A (en) * 2017-12-27 2018-11-23 北京视联动力国际信息技术有限公司 A kind of video data handling procedure and turn server depending on networking association

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