CN110460878A - A kind of switching method and apparatus of video communication link - Google Patents

A kind of switching method and apparatus of video communication link Download PDF

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Publication number
CN110460878A
CN110460878A CN201910657375.8A CN201910657375A CN110460878A CN 110460878 A CN110460878 A CN 110460878A CN 201910657375 A CN201910657375 A CN 201910657375A CN 110460878 A CN110460878 A CN 110460878A
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CN
China
Prior art keywords
server
communication link
network
code stream
hybrid network
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Granted
Application number
CN201910657375.8A
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Chinese (zh)
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CN110460878B (en
Inventor
闫治波
方小帅
李云鹏
沈军
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Visionvera Information Technology Co Ltd
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Visionvera Information Technology Co Ltd
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Priority to CN201910657375.8A priority Critical patent/CN110460878B/en
Publication of CN110460878A publication Critical patent/CN110460878A/en
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Classifications

    • 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
    • H04N21/239Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
    • H04N21/2393Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
    • 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
    • H04N21/25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H04N21/26208Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643Communication protocols
    • H04N21/6437Real-time Transport Protocol [RTP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/647Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H04N21/64723Monitoring of network processes or resources, e.g. monitoring of network load
    • H04N21/64738Monitoring network characteristics, e.g. bandwidth, congestion level
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Abstract

The embodiment of the invention provides a kind of switching method of video communication link and devices, comprising: hybrid network dispatch server is generated according to switching request adjusts stream request;Hybrid network dispatch server judges the type of destination server using the mark of destination server;When type is that association turns server, hybrid network dispatch server will adjust stream request to be sent to destination server using the first communication link;When type is Internet Server, hybrid network dispatch server will adjust stream request to be sent to destination server using the second communication link;Wherein, the second communication link is the communication link for adapting to the transport protocol of Ethernet;The communication link of hybrid network dispatch server disconnection current server, and receive the monitor video code stream of destination server feedback, make when monitoring resource repeats to be present in view networking and two platforms in internet, meet user and independently determine the needs of playing out using a certain link, improves the Experience Degree of the stability and user of adjusting stream.

Description

A kind of switching method and apparatus of video communication link
Technical field
The present invention relates to technical field of data processing, more particularly to the switching method and dress of a kind of video communication link It sets, terminal and a kind of computer readable storage medium.
Background technique
Hybrid network can access view networking video signal resource and internet video signal resource, by realizing with view networking protocol tune The method of stream, Session Initiation Protocol INVITE tune stream, is that association turns server to source, and/or, the video signal resource of Internet Server into Stream is drawn in row scheduling.
It is the important milestone of network Development depending on networking, is the more advanced form of internet, is a real-time network, it can It realizes the whole network high-definition monitoring realtime video transmission that current internet cannot achieve, pushes numerous Internet applications to high-definition monitoring Video, high definition is face-to-face, will finally realize that the world without distance, realizes that the distance of person to person in global range is a screen Distance.
At present to the resource for repeating to turn server or Internet Server in the presence of association, the video communication link of selection push code It is cumbersome to keep code stream push slow, it is easy to make broadcasting pictures Caton, and existing scheduling mode success rate in monitoring scheduling of resource It is low, and the process of the customized selection link of user is cumbersome, influences user experience.
Summary of the invention
In view of the above problems, it proposes the embodiment of the present invention and overcomes the above problem or at least partly in order to provide one kind A kind of switching method of the video communication link to solve the above problems, a kind of switching device of video communication link, a kind of terminal, And a kind of computer readable storage medium.
The embodiment of the invention also discloses a kind of switching methods of video communication link, are applied to monitor video between server The scheduling of code stream, the server include turning server based on the association depending on connected network communication, the internet clothes based on ethernet communication Business device, and turn the hybrid network tune of server and the Internet Server by unique communication link connection with the association respectively Server is spent, the communication link is used for transmission the monitor video code stream, which comprises
The hybrid network dispatch server is when receiving the switching request for communication link, according to the switching request It generates and adjusts stream request, wherein is described to adjust the mark with destination server in stream request;
The hybrid network dispatch server judges the type of the destination server using the mark of the destination server;
When type is that the association turns server, the hybrid network dispatch server uses the first communication link by the tune Stream request is sent to the destination server;Wherein, first communication link is to adapt to regard the logical of the transport protocol networked Believe link;
When type is the Internet Server, the hybrid network dispatch server will be described using the second communication link Stream request is adjusted to be sent to the destination server;Wherein, second communication link is the transport protocol for adapting to Ethernet Communication link;
The hybrid network dispatch server disconnects the communication link of the current server, and receives the destination server The monitor video code stream of feedback.
Further, the hybrid network dispatch server disconnects the communication link of the current server, and described in reception Destination server feedback the monitor video code stream the step of include:
The hybrid network dispatch server obtains the first network situation of the destination server;
The hybrid network dispatch server obtains the second network condition of the current server;
The superiority and inferiority of hybrid network dispatch server the first network situation and the second network condition;
When first network situation is better than the second network condition, the hybrid network dispatch server disconnects the current service The communication link of device, and receive the monitor video code stream of the destination server feedback.
Further, the method also includes:
When the second network condition is better than first network situation, the hybrid network dispatch server is inquired whether the user needs to Continue Switch Video communication link;
When user feedback is confirmation switching, the hybrid network dispatch server disconnects the communication chain of the current server Road, and receive the monitor video code stream of the destination server feedback.
Further, the superiority and inferiority of the hybrid network dispatch server first network situation and the second network condition The step of include:
The hybrid network dispatch server extracts the first network speed in the first network situation;
The hybrid network degree server extracts the second network speed in second network condition;
The hybrid network dispatch server judges whether first network speed is greater than the second network speed;
If so, the first network situation is better than second network condition;If it is not, then second network condition is excellent In the first network situation.
Further, the hybrid network dispatch server is when receiving the switching request for video communication link, according to The step of adjusting stream request is generated according to the switching request includes:
The hybrid network dispatch server judges whether the destination server preserves the monitor video code stream;
If so, generating the tune stream request according to the switching request.
Further, the hybrid network dispatch server judges whether the destination server preserves the monitor video The step of code stream includes:
The hybrid network dispatch server obtains the id information of the monitor video code stream, and is generated using the id information Inquiry request, wherein the inquiry request is for inquiring in the destination server whether be stored with the monitor video code stream;
The inquiry request is sent to the destination server by the hybrid network dispatch server;
The hybrid network dispatch server judges the destination service by the query result that the destination server is fed back Whether the monitor video code stream is had in device;
When the query result of destination server feedback is to have the id information, the hybrid network scheduling clothes Business device determines that the target business device has the monitor video.
The embodiment of the invention also discloses a kind of switching devices of video communication link, are applied to monitor video between server The scheduling of code stream, the server include turning server based on the association depending on connected network communication, the internet clothes based on ethernet communication Business device, and turn the hybrid network tune of server and the Internet Server by unique communication link connection with the association respectively Server is spent, the communication link is used for transmission the monitor video code stream, specifically includes:
Stream request generation module is adjusted, for being asked according to the switching when receiving the switching request for communication link Seek survival into tune stream request, wherein described to adjust the mark with destination server in stream request;
Type of server judgment module judges the class of the destination server for the mark using the destination server Type;
First adjust stream request sending module, for when type be it is described association turn server when, using the first communication link will The tune stream request is sent to the destination server;Wherein, first communication link is the transmission association for adapting to view networking The communication link of view;
Second adjusts stream request sending module, for using the second communication link will when type is the Internet Server The tune stream request is sent to the destination server;Wherein, second communication link is the transmission association for adapting to Ethernet The communication link of view;
Video code flow receiving module for disconnecting the communication link of the current server, and receives the destination service The monitor video code stream of device feedback.
Further, the video code flow receiving module includes:
First network situation acquisition submodule, for obtaining the first network situation of the destination server;
Second network condition acquisition submodule, for obtaining the second network condition of the current server;
Network condition Comparative sub-module, the superiority and inferiority for the first network situation and the second network condition;
Code stream acquisition submodule, for disconnecting the current service when first network situation is better than the second network condition The communication link of device, and receive the monitor video code stream of the destination server feedback.
The embodiment of the invention also discloses a kind of terminals, comprising:
One or more processors;With
One or more machine readable medias of instruction are stored thereon with, are executed when by one or more of processors When, so that the terminal executes the switching method of one or more video communication links as described in the embodiments of the present invention.
The embodiment of the invention also discloses the computer programs of a kind of computer readable storage medium, storage to handle Device executes the switching method of video communication link as described in the embodiments of the present invention.
The embodiment of the present invention includes following advantages:
In embodiments of the present invention, it is asked by the hybrid network dispatch server receiving the switching for communication link It when asking, is generated according to the switching request and adjusts stream request, wherein is described to adjust the mark with destination server in stream request;Institute State the type that hybrid network dispatch server judges the destination server using the mark of the destination server;When type is institute When stating association and turning server, the hybrid network dispatch server requests tunes stream to be sent to the mesh using the first communication link Mark server;Wherein, first communication link is the communication link for adapting to the transport protocol of view networking;When type is described When Internet Server, tune stream request is sent to the mesh using the second communication link by the hybrid network dispatch server Mark server;Wherein, second communication link is the communication link for adapting to the transport protocol of Ethernet;The hybrid network tune Degree server disconnects the communication link of the current server, and receives the monitor video code of the destination server feedback Stream makes to meet user when monitoring resource repeats to be present in view networking and two platforms in internet and independently determine to use a certain chain The demand that road plays out improves the Experience Degree of the stability and user of adjusting stream.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings Obtain other attached drawings.
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 switching method of video communication link of the embodiment of the present invention;
Fig. 6 is a kind of structural block diagram of the switching device of video communication link of the embodiment of the present 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.Obviously, described embodiments are some of the embodiments of the present invention, without It is whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work Every other embodiment obtained is put, shall fall within the protection scope of the present invention.
It is the important milestone of network Development depending on networking, is a real-time network, it is real-time to can be realized high-definition monitoring video Transmission, pushes numerous Internet applications to high-definition monitoring video, high definition is face-to-face.
Use real-time high-definition monitor video switching technology depending on networking, can in a network platform by required service, Such as high-definition monitoring video conference, monitor video monitoring, Intellectualized monitoring analysis, emergency command, digital broadcast television, delay electricity Depending on, the Web-based instruction, live broadcast, VOD program request, TV Mail, individual character record (PVR), Intranet (manages) channel, Intellectualized monitoring by oneself The services such as tens of kinds of monitor videos, voice, picture, text, communication, the data such as video Broadcast Control, information publication are all incorporated into one A system platform realizes that high-definition quality monitor video plays by TV or computer.
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 Monitor video flow.It is exchanged different from simple network packet packet switch (Packet Switching) or lattice network (Circuit Switching) meets Streaming demand using Packet Switching depending on networking technology.Depending on skill of networking Art has flexible, the simple and low price of packet switch, is provided simultaneously with the quality and safety assurance of circuit switching, realizes the whole network friendship Change the seamless connection of formula virtual circuit 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 monitor video real-time Transmission that networking cannot achieve, pushes numerous network monitoring Video Applications to high definition Change, is unitized.
Server technology (Server Technology)
It is different from traditional server, its stream with the server technology on unified monitoring video platform depending on networking Media transmission be built upon it is connection-oriented on the basis of, data-handling capacity is unrelated with flow, call duration time, single network layer It can be transmitted comprising signaling and data.For voice and monitor video business, depending on networking and unified monitoring video platform The complexity many simpler than data processing of Streaming Media processing, efficiency substantially increase hundred times or more than traditional server.
Reservoir technology (Storage Technology)
In media of the ultrahigh speed reservoir technology of unified monitoring video platform in order to adapt to vast capacity and super-flow Hold and use 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 is optimal The sector distribution of change greatly reduces the mechanical movement of hard disc magnetic head tracking, and resource consumption only accounts for the internet ad eundem IP 20%, 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 monitoring video platform, whether single user, private user or one The sum total of a network is all only primary automatic connection.It is flat that user terminal, set-top box or PC are attached directly to unified monitoring video Platform obtains the multimedia monitoring Video service of colourful various forms.Unified monitoring video platform is matched using " menu type " Table schema programs to substitute traditional complicated applications, and considerably less code, which can be used, can be realized complicated application, realizes " nothing The new business innovation of limitation ".
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 monitoring video platform (part in virtual coil), multiple unified prisons Control video platform can form view networking;Each unified monitoring video platform can be mutual by metropolitan area and wide area view networking interconnection It is logical.
1, view networked devices classification
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 association turns gateway), terminal (including various set-top boxes, encoding board, memory etc.).Metropolitan Area Network (MAN) can be divided on the whole depending on networking (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 association turns 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.
It should be noted that hybrid network is hybrid network video sharing application platform in following any embodiment.It is a kind of Converging network, the video sharing application platform based on mixing planar network architecture can support the video traffic function of current main-stream, be able to achieve Extensive real time communication, and can support to dock with other videos and data services network platform.Support monitoring resource according to view Networking is scheduled using 28181 consensus standard of national standard GB/T, realizes monitoring scheduling of resource platform (such as: Tang Gula monitoring Scheduling of resource platform) scheduling of resource can be carried out in two ways and checks;Association turns server and turns server (monitoring for monitoring association Access service system);Internet Server is 28181 junior's platform of national standard GB/T;Junior's national standard platform be association transfer into abide by Follow the monitoring docking server of 28181 standard of GB/T (third party monitors national standard docking platform);It is flat that Tang Gula monitors scheduling of resource Platform is that view networking monitoring network management dispatches system;The RTP network transmission protocol provides the end pair with real-time characteristic for data End transmission service, interactive video audio or analogue data such as under multicast or unicast network services.
The call method of a kind of video communication link of the embodiment of the present invention, applied to monitor video code stream between server Scheduling, the server includes turning server based on the association depending on connected network communication, the Internet Server based on ethernet communication, with And turn the hybrid network dispatch server of server and the Internet Server by unique communication link, institute with the association respectively It states communication link and is used for transmission the monitor video code stream, which comprises
S510, the hybrid network dispatch server determine institute when receiving the acquisition request for monitor video code stream State the corresponding monitor video code stream of acquisition request;
S520, the hybrid network dispatch server judge whether the association turns in server and the Internet Server Preserve the monitor video code stream;
S530, when the association turns server and the Internet Server preserves the monitor video, it is described mixed It closes net dispatch server and generates the tune stream request for being directed to the monitor video code stream, and tune stream request is respectively sent to The association turns server and the Internet Server;
S540, the hybrid network dispatch server determine that the server for feeding back the monitor video code stream at first is target clothes Business device;
S550, the hybrid network dispatch server receive the monitor video based on the communication link of the destination server Code stream, and, disconnect the communication link with other servers.
In embodiments of the present invention, obtaining for monitor video code stream is being received by the hybrid network dispatch server When taking request, the corresponding monitor video code stream of the acquisition request is determined;The hybrid network dispatch server judges that the association turns Whether the monitor video code stream is preserved in server and the Internet Server;When the association turns server and described When Internet Server preserves the monitor video, the hybrid network dispatch server generation is directed to the monitor video The tune stream of code stream is requested, and tune stream request is respectively sent to the association and turns server and the Internet Server;Institute It states hybrid network dispatch server and determines that the server for feeding back the monitor video code stream at first is destination server;The hybrid network Dispatch server receives the monitor video code stream based on the communication link of the destination server, and, it disconnects and other clothes Be engaged in the communication link of device, make to repeat to be present in view networking and when two platforms in internet when monitoring resource, to dual communication link into Row adjusts stream request, solves the problems, such as that single link tune stream can not succeed sometimes, has ensured the stability for adjusting stream, optimizes tune stream Speed, keep the experience of user more preferable.
In the following, by being further described to the call method of video communication link in the present exemplary embodiment.
As described in above-mentioned steps S510, the hybrid network dispatch server is receiving the acquisition for monitor video code stream When request, the corresponding monitor video code stream of the acquisition request is determined;
As an example, the acquisition request that the hybrid network dispatch server receives can pass through prison for user The acquisition request for the monitor video code stream that platform is sent is controlled, the monitor supervision platform Ke Yi Wei Tang Gula monitoring and scheduling is flat Platform, sending the acquisition acquisition request can be to pass through Session Initiation Protocol (Session Initiation Protocol, conversation initial Agreement) it is sent, wherein it include the identity information of the monitor video code stream, the identity information in the acquisition request It can be the id information or label information of the monitor video code stream.
As described in above-mentioned steps S520, the hybrid network dispatch server judges that the association turns server and the internet Whether the monitor video code stream is preserved in server;
In a kind of preferred embodiment of the present invention, it can be further illustrated in step S520 in conjunction with following description " described mixed It closes net dispatch server and judges the association turns whether preserve the monitor video in server and the Internet Server The detailed process of code stream ".
As described in the following steps: the hybrid network dispatch server obtains the id information of the monitor video code stream, and adopts Inquiry request is generated with the id information, wherein the inquiry request turns server and the internet for inquiring the association Whether the monitor video code stream is stored in server;
As a kind of signal, the hybrid network dispatch server is after it confirmed the monitor video code stream, described in extraction Id information in monitor video code stream, and the id information is used to inquire the association as generation and turns server and the interconnection Whether the generation parameter of the inquiry request of the monitor video code stream is stored in network server, to carry out the life of inquiry request At.
As described in the following steps: the inquiry request is sent to the association respectively and turns clothes by the hybrid network dispatch server Business device and the Internet Server;
It should be noted that after association turns server and Internet Server receives inquiry request, by being asked to inquiry The parsing asked extracts the id information of the monitor video code stream, then to the monitor video code stream progress in itself repository Match, and judge whether to match the monitor video code stream of identical id information, when the monitor video code stream for matching identical id information When, generating content is to preserve the query result of the id information, when the monitor video code stream for not matching identical id information When, generating content is not preserve the query result of id information.
As described in the following steps: the hybrid network dispatch server turns server and the Internet service by the association The query result of device feedback judges that the association turns whether there is the monitor video code in server and the Internet Server Stream;
It should be noted that after receiving the query result, the inquiry is tied for the hybrid network dispatch server Fruit carries out the content in parsing acquisition query result, and concrete outcome is as follows:
When the query result that the association turns server feedback is to have the id information, the hybrid network scheduling clothes Business device determines that the association turns server and has the monitor video;
When the query result of Internet Server feedback is to have the id information, the hybrid network scheduling Server determines that the Internet Server has the monitor video.
As described in above-mentioned steps S530, when the association turns server and the Internet Server preserves the monitoring When video, the hybrid network dispatch server generates the tune stream request for being directed to the monitor video code stream, and the tune is flowed Request is respectively sent to the association and turns server and the Internet Server;
It should be noted that when the query result that the association turns server and Internet Server feedback is to have When the id information, the tune stream that the hybrid network dispatch server generation is directed to the monitor video code stream is requested, and according to Corresponding communication protocol is sent to the association and turns server and the Internet Server, wherein sends and stream is adjusted to request to described Association turns server using view networking transport agreement;It sends and stream request to the Internet Server is adjusted to use Session Initiation Protocol.
As described in above-mentioned steps S540, the monitor video code stream is fed back in the hybrid network dispatch server determination at first Server is destination server;
It should be noted that the association turns server and the Internet Server after receiving tune stream request, pass through Corresponding agreement is monitored the plug-flow of video code flow, wherein the association turns server and is monitored view using depending on networking protocol The plug-flow of frequency code stream;Using Real-time Transport Protocol, (Real-time Transport Protocol is passed the Internet Server in real time Defeated agreement) it is monitored the plug-flow of video code flow.
It should be noted that guarantee to only receive the prison of transmission of the server by communication link in the arbitrary point time Video code flow is controlled, is limited using by receiving port of the thread lock mechanism to the hybrid network tune streaming server, so that Any time has sequencing from the received monitor video code stream of multiple servers, so as to server and communication chain It is preferentially chosen on road.
As described in above-mentioned steps S550, the hybrid network dispatch server is connect based on the communication link of the destination server The monitor video code stream is received, and, disconnect the communication link with other servers.
It should be noted that after the mixing network server receives the monitor video code stream fed back at first, due to line The monitor video code stream of remaining communication link of journey lock mechanism feedback will be included in waiting sequence, when hybrid network dispatch server determines mesh After marking server, then the communication link waited in sequence is disconnected, wherein hybrid network dispatch server, which can be generated, before the switch-off stops Stop signal, and be sent in the server waited in sequence, continue to send monitor video code stream to stop this part server.Its In, for the type that thread lock mechanism generally uses to adapt to lock, the type action of the lock is most simple, competes again after simply waiting unlock Guarantee that the communication link feedback speed obtained every time is most fast.
In a kind of preferred embodiment of the present invention, it can be further illustrated in step S550 in conjunction with following description " described mixed Close net dispatch server and the monitor video code stream received based on the communication link of the destination server, and, disconnect and its The detailed process of the communication link of his server ".
As described in the following steps: when the destination server is that the association turns server, the hybrid network dispatch service Device sends stop signal to the Internet Server, and the Internet Server is made to stop feeding back the monitor video code stream;
Wherein, sending stop signal reduces the occupancy of server to the Internet Server, wherein sends and stops Signal to the Internet Server uses Session Initiation Protocol.
As described in the following steps: the hybrid network dispatch server disconnects the communication link with the Internet Server;
After the hybrid network dispatch server has sent the stop signal, the communication of the Internet Server is disconnected Link, wherein the communication link of the Internet Server is in front of the switch-off until in sequence.
As described in the following steps: the hybrid network dispatch server leads to described assist and turns as described in the communication link reception of server Monitor video code stream;
Before disconnecting Internet Server, meanwhile, or later, the hybrid network dispatch server is turned by the association Server receives the monitor video code stream, wherein receiving the communication protocol of the monitor video code stream as view networking protocol.
As described in the following steps: when the destination server is the Internet Server, the hybrid network scheduling clothes Business device sends stop signal to the association and turns server, so that the association is turned server and stops feeding back the monitor video code stream;
Wherein, it sends stop signal to the association and turns server to reduce the occupancy of server, wherein send and stop letter Number to it is described association turn server using view networking protocol.
As described in the following steps: the hybrid network dispatch server disconnects the communication link for turning server with the association;
After the hybrid network dispatch server has sent the stop signal, the communication chain assisted and turn server is disconnected Road, wherein the communication link that the association turns server is in front of the switch-off until in sequence.
As described in the following steps: the communication link that the hybrid network dispatch server leads to the Internet Server receives institute State monitor video code stream.
Before disconnecting association and turning server, meanwhile, or later, the hybrid network dispatch server passes through the internet Server receives the monitor video code stream, wherein the communication protocol for receiving the monitor video code stream is Real-time Transport Protocol.
As an example, the association connecting in the application with hybrid network dispatch server turns server and Internet Server Quantity can be more than one, when the corresponding server of each type of server is more than a period of time, after having selected type of server, then Optimum selecting, process that it is no longer repeated are carried out to server.
In a kind of preferred embodiment of the present invention, in the hybrid network dispatch server based on the logical of the destination server Believe that link receives the monitor video code stream, and, after the step of disconnecting the communication link with other servers, further includes:
The hybrid network dispatch server broadcasts the monitor video bit stream to preset video playing platform It puts.
It should be noted that the hybrid network dispatch server is after obtaining the monitor video code stream by preset logical Believe that monitor video code stream is sent to monitor supervision platform by agreement, which can be Real-time Transport Protocol.
Referring to Fig. 5, shows the embodiment of the invention also discloses a kind of switching method of video communication link, be applied to clothes The scheduling of monitor video code stream between business device, the server includes turning server based on the association depending on connected network communication, is based on Ethernet The Internet Server of communication, and turn server and the Internet Server with the association respectively and pass through unique communication link The hybrid network dispatch server of connection, the communication link are used for transmission the monitor video code stream, which comprises
S710, the hybrid network dispatch server are cut according to described in when receiving the switching request for communication link It changes request and generates to adjust and flow request, wherein is described to adjust the mark in stream request with destination server;
S720, the hybrid network dispatch server judge the destination server using the mark of the destination server Type;
S730, when type be it is described association turn server when, the hybrid network dispatch server using the first communication link general The tune stream request is sent to the destination server;Wherein, first communication link is the transmission association for adapting to view networking The communication link of view;
S740, when type be the Internet Server when, the hybrid network dispatch server use the second communication link Tune stream request is sent to the destination server;Wherein, second communication link is the transmission for adapting to Ethernet The communication link of agreement;
S750, the hybrid network dispatch server disconnect the communication link of the current server, and receive the target The monitor video code stream of server feedback.
Through the hybrid network dispatch server when receiving the switching request for communication link, according to the switching Request, which generates, adjusts stream request, wherein described to adjust the mark with destination server in stream request;The hybrid network dispatch server The type of the destination server is judged using the mark of the destination server;When type is that the association turns server, institute It states hybrid network dispatch server and tune stream request is sent to by the destination server using the first communication link;Wherein, institute Stating the first communication link is the communication link for adapting to the transport protocol of view networking;When type is the Internet Server, Tune stream request is sent to the destination server using the second communication link by the hybrid network dispatch server;Wherein, Second communication link is the communication link for adapting to the transport protocol of Ethernet;The hybrid network dispatch server disconnects institute The communication link of current server is stated, and receives the monitor video code stream of the destination server feedback, is made when monitoring money Source repeats to be present in view networking and when two platform in internet, meets what user independently determined to play out using a certain link Demand improves the Experience Degree of the stability and user of adjusting stream.
In the following, by being further described to the switching method of video communication link in the present exemplary embodiment.
As described in above-mentioned steps S710, the hybrid network dispatch server is receiving the switching request for communication link When, it is generated according to the switching request and adjusts stream request, wherein is described to adjust the mark with destination server in stream request;
It should be noted that containing the mark of the destination server in the switching request, wherein the destination service The mark of device can be the equipment unique identifier of the destination server, or the destination server is physically Location.
In a kind of preferred embodiment of the present invention, it can be further illustrated in step S710 in conjunction with following description " described mixed Net dispatch server is closed when receiving the switching request for video communication link, is generated according to the switching request and stream is adjusted to ask Ask " detailed process.
As described in the following steps, the hybrid network dispatch server judges whether the destination server preserves the prison Control video code flow;
In a kind of preferred embodiment of the present invention, step " the hybrid network tune can be further illustrated in conjunction with following description Degree server judge whether the destination server preserves the monitor video code stream " detailed process.
As described in the following steps: the hybrid network dispatch server obtains the id information of the monitor video code stream, and adopts Inquiry request is generated with the id information, wherein whether the inquiry request is stored with for inquiring in the destination server The monitor video code stream;
As a kind of signal, the hybrid network dispatch server is after it confirmed the monitor video code stream, described in extraction Id information in monitor video code stream, and the id information is used to inquire in the destination server as generation and whether is stored There is the generation parameter of the inquiry request of the monitor video code stream, to carry out the generation of inquiry request.
As described in the following steps: the inquiry request is sent to the destination service by the hybrid network dispatch server Device;
It should be noted that being extracted after destination server receives inquiry request by the parsing to inquiry request Then the id information of the monitor video code stream matches the monitor video code stream in itself repository, and judges whether The monitor video code stream for matching identical id information, when matching the monitor video code stream of identical id information, generating content is The query result for preserving the id information, when not matching the monitor video code stream of identical id information, generating content is The query result of id information is not preserved.
As described in the following steps: the hybrid network dispatch server is sentenced by the query result that the destination server is fed back Break in the destination server and whether has the monitor video code stream;
It should be noted that after receiving the query result, the inquiry is tied for the hybrid network dispatch server Fruit carries out the content in parsing acquisition query result, and concrete outcome is as follows:
When the query result of destination server feedback is to have the id information, the hybrid network scheduling clothes Business device determines that the destination server has the monitor video.
When the destination server has the monitor video, that is, if so, according to described in switching request generation Adjust stream request.
As described in above-mentioned steps S720, the hybrid network dispatch server judges institute using the mark of the destination server State the type of destination server;
It should be noted that the hybrid network dispatch server judges institute by the physical address of the destination server State the type of destination server, the type be for server transmission data based on network protocol type progress area Point, including assist and turn server and Internet Server.
As described in above-mentioned steps S730, when type is that the association turns server, the hybrid network dispatch server is used Tune stream request is sent to the destination server by the first communication link;Wherein, first communication link is to adapt to Communication link depending on the transport protocol networked;
As described in above-mentioned steps S740, when type is the Internet Server, the hybrid network dispatch server is adopted Tune stream request is sent to the destination server with the second communication link;Wherein, second communication link is adaptation In the communication link of the transport protocol of Ethernet;
It should be noted that the transport protocol for adapting to Ethernet can be the INVITE process in Session Initiation Protocol.
As described in above-mentioned steps S750, the hybrid network dispatch server disconnects the communication link of the current server, And receive the monitor video code stream of the destination server feedback.
In a kind of preferred embodiment of the present invention, it can be further illustrated in step S750 in conjunction with following description " described mixed It closes net dispatch server and disconnects the communication link of the current server, and receive the monitoring of the destination server feedback The detailed process of video code flow ".
As described in the following steps: the hybrid network dispatch server obtains the first network situation of the destination server;
It should be noted that the first network situation can be the network of the current communication link of the destination server The network of the communication link of the packet loss or destination server of the communication link of transmission speed or the destination server Any two or three combinations of the situation that is delayed or first three.
As described in the following steps: the hybrid network dispatch server obtains the second network condition of the current server;
It should be noted that the first network situation can be the network of the current communication link of the current server The network of the communication link of the packet loss or current server of the communication link of transmission speed or the current server Any two or three combinations of the situation that is delayed or first three.
It should be noted that the destination server and the current server that the hybrid network dispatch server obtains Network condition type it is identical, that is, when first network situation is determined as network transfer speeds, the second network condition be only capable of also be Network transfer speeds.
As described in the following steps: the hybrid network dispatch server first network situation and the second network condition Superiority and inferiority;
In a kind of preferred embodiment of the present invention, step " the hybrid network tune can be further illustrated in conjunction with following description The detailed process of the superiority and inferiority of degree server the first network situation and the second network condition ".
When the network condition of the destination server and the current server that the hybrid network dispatch server obtains When type is network transfer speeds,
The hybrid network dispatch server extracts the first network speed in the first network situation;The hybrid network degree clothes Business device extracts the second network speed in second network condition;Whether the hybrid network dispatch server judges first network speed Greater than the second network speed;If so, the first network situation is better than second network condition;If it is not, then second network Situation is better than the first network situation.
As described in the following steps: when first network situation is better than the second network condition, the hybrid network dispatch server The communication link of the current server is disconnected, and receives the monitor video code stream of the destination server feedback.
In a kind of preferred embodiment of the present invention, the method also includes:
When the second network condition is better than first network situation, the hybrid network dispatch server is inquired whether the user needs to Continue Switch Video communication link;
It should be noted that the mode of the inquiry can be to pass through the interaction letter for being shown in monitor supervision platform broadcast interface Breath e.g. inquires pop-up;It can be the interactive information played by voice.
When user feedback is confirmation switching, the hybrid network dispatch server disconnects the communication chain of the current server Road, and receive the monitor video code stream of the destination server feedback.
It should be noted that the user feedback can pass through the pop-up button or speech answering of selection interface for user.
The embodiment of the invention also discloses a kind of methods of network video disconnection reconnecting, applied to the communication chain between server Road reconnection, the server include turning server based on the association depending on connected network communication, the Internet Server based on ethernet communication, And turn the hybrid network dispatch server of server and the Internet Server by unique communication link with the association respectively, The communication link is used for transmission the monitor video code stream, which comprises
S810, the hybrid network dispatch server obtain the association respectively and turn server and Internet Server acquisition The speed of the monitor video code stream;
The server for the fast speed that S820, hybrid network dispatch server configuration obtain the monitor video code stream is Primary server configures slower for secondary server, and the communication link of the disconnection secondary server;
The communication link of the primary server is added preset code stream and detects team by S830, the hybrid network dispatch server In column;
S840, the monitor video code that the primary server is sent can not be received when the hybrid network dispatch server When stream, the communication link with the primary server is disconnected, and remove the logical of Internet Server from code stream detection queue Believe link;
S850, the hybrid network dispatch server generate the tune stream request of the monitor video code stream, and the tune is flowed Request is sent to the secondary server;
S860, the hybrid network dispatch server receive the monitor video code stream of the secondary server feedback;
The communication link of the secondary server is added the code stream and detects queue by S870, the hybrid network dispatch server In.
The hybrid network dispatch server obtains the association respectively and turns described in server and Internet Server acquisition The speed of monitor video code stream;The hybrid network dispatch server configuration obtains the clothes of the fast speed of the monitor video code stream Business device is primary server, is configured slower for secondary server, and the communication link of the disconnection secondary server;The hybrid network The communication link of the primary server is added in preset code stream detection queue dispatch server;It dispatches and takes when the hybrid network When business device can not receive the monitor video code stream that the primary server is sent, the communication chain with the primary server is disconnected Road, and the communication link that Internet Server is removed in queue is detected from the code stream;The hybrid network dispatch server generates The tune stream of the monitor video code stream is requested, and tune stream request is sent to the secondary server;The hybrid network scheduling Server receives the monitor video code stream of the secondary server feedback;The hybrid network dispatch server services the pair The communication link of device is added in the code stream detection queue, and monitoring resource repeats to be present in view networking and the platform of internet two When, by increasing code stream testing mechanism newly, when playing monitoring, it ensure that the stability for adjusting stream, it, can be fast after wherein breaking all the way Speed is switched to another link, keeps the experience of user more preferable, when a link disconnects wherein, can smoothly be switched to another link It plays out
In the following, by being further described to the method for network video disconnection reconnecting in the present exemplary embodiment.
As described in above-mentioned steps S810, the hybrid network dispatch server obtain respectively it is described association turn server and it is described mutually The speed of networked server transmission monitor video code stream;
It should be noted that the speed for obtaining the transmission monitor video code stream of the server is led to by corresponding Letter agreement is obtained,
As described in above-mentioned steps S820, the hybrid network dispatch server configuration obtains the speed of the monitor video code stream Faster server is primary server, is configured slower for secondary server, and the communication link of the disconnection secondary server;
It should be noted that the step can not be executed after having executed the call method of the video communication link S810-S820, primary server is the current server for receiving code stream at this time, and secondary server is then server to be communicated.
In a kind of preferred embodiment of the present invention, it can be further illustrated in step S820 in conjunction with following description " described mixed The server for closing the fast speed that the configuration of net dispatch server obtains the monitor video code stream is primary server, is configured slower For secondary server, and disconnect the communication link of the secondary server " detailed process.
When obtaining the server of fast speed of the monitor video code stream is that the association turns server, the hybrid network The association is turned server and is set as the primary server by dispatch server, and the Internet Server is set as the secondary service Device, and disconnect the communication link of the Internet Server;
When obtaining the server of fast speed of the monitor video code stream is the Internet Server, the mixing The Internet Server is set as the primary server by net dispatch server, and the association is turned server and is set as the secondary service Device, and disconnect the communication link assisted and turn server.
As described in above-mentioned steps S830, the hybrid network dispatch server communication link of the primary server is added pre- If code stream detection queue in;
It should be noted that the code stream that the preset code stream detection queue is used to monitor in real time the primary server is sent Situation, for calling secondary server to carry out the acquisition of video code flow in server disconnection or too low transmission speed.
As described in above-mentioned steps S840, when the hybrid network dispatch server can not receive what the primary server was sent When the monitor video code stream, the communication link with the primary server is disconnected, and remove mutually from code stream detection queue The communication link of networked server;
In a kind of preferred embodiment of the present invention, the main service can not be being received when the hybrid network dispatch server When the monitor video code stream that device is sent, the communication link with the primary server is disconnected, and detect queue from the code stream Before the step of middle communication link for removing Internet Server, further include
As described in the following steps, the hybrid network dispatch server obtains the main service from code stream detection queue The detection data of device;
It should be noted that the detection data can send the speed of the monitor video code stream for the primary server Degree and the primary server send the combination of any one or two kinds in the network delay situation of the communication link.
The hybrid network dispatch server judges whether that the primary server hair can not be received according to the detection data The monitor video code stream sent;
In a kind of preferred embodiment of the present invention, step " the hybrid network tune can be further illustrated in conjunction with following description Degree server judges whether that the monitor video code stream of the primary server transmission can not be received according to the detection data " Detailed process.
When the Rule of judgment of the hybrid network dispatch server is to send the speed of the monitor video code stream,
As described in the following steps, the hybrid network dispatch server extracts the real-time code stream in the detection data and sends speed Degree;The hybrid network dispatch server judges whether real-time code stream transmission speed speed is equal to 0.
If so, the hybrid network dispatch server is judged to not receiving the monitoring that the primary server is sent Video code flow.
As described in above-mentioned steps S850, the tune stream that the hybrid network dispatch server generates the monitor video code stream is asked It asks, and tune stream request is sent to the secondary server;
It should be noted that send it is described adjust stream request transport protocol according to server type difference carry out it is different Adaptation, when server is that association turns server, using the transmission for adjust depending on networking protocol stream request, when server is internet When server, adjust using Session Initiation Protocol the transmission of stream request.
As described in above-mentioned steps S860, the hybrid network dispatch server receives the monitoring of the secondary server feedback Video code flow;
It should be noted that the type difference for receiving the monitor video code stream according to server carries out different adaptations, When server is that association turns server, using the reception for carrying out the monitor video code stream depending on networking protocol, when server is mutual When networked server, the reception of the monitor video code stream is carried out using Real-time Transport Protocol.
As described in above-mentioned steps S870, institute is added in the communication link of the secondary server by the hybrid network dispatch server It states in code stream detection queue.
It should be noted that the communication link of the secondary server is added in the code stream detection queue, for detecting The code stream of the secondary server sends situation, in order to re-start the present invention when disconnection situation occurs in the secondary server The method of network video disconnection reconnecting disclosed in embodiment, the secondary server at this time are regarded as the main clothes in the above method Business device, and carry out corresponding step process.
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.
The embodiment of the invention also discloses a kind of calling device of video communication link, monitor video code stream between server Scheduling, the server includes turning server based on the association depending on connected network communication, the Internet Server based on ethernet communication, with And turn the hybrid network dispatch server of server and the Internet Server by unique communication link, institute with the association respectively The method of stating includes:
Code stream determining module, for determining that the acquisition is asked when receiving the acquisition request for monitor video code stream Seek corresponding monitor video code stream;
Judgment module, for judging the association turns whether preserve the prison in server and the Internet Server Control video code flow;
Stream request sending module is adjusted, the association turns server and the Internet Server preserves the prison for working as When controlling video, the hybrid network dispatch server generates the tune stream request for being directed to the monitor video code stream, and by the tune Stream request is respectively sent to the association and turns server and the Internet Server;
Server confirmation module feeds back the monitor video code stream for hybrid network dispatch server determination at first Server is destination server;
Code stream receiving module receives the monitor video code stream for the communication link based on the destination server, with And the communication link of disconnection and other servers.
In a kind of preferred embodiment of the present invention, the judgment module includes:
Inquiry request generates submodule, for obtaining the id information of the monitor video code stream, and uses the id information Generate inquiry request, wherein the inquiry request for inquire the association turn in server and the Internet Server whether It is stored with the monitor video code stream;
Inquiry request sending submodule, for respectively by the inquiry request be sent to it is described association turn server and it is described mutually Networked server;
Query result judging submodule, for turning the inquiry of server and Internet Server feedback by the association As a result judge the association turns whether there is the monitor video in server and the Internet Server;
Association turns server decision sub-module, for when it is described assist the query result for turning server feedback be have it is described When id information, determine that the association turns server and has the monitor video;
Internet Server decision sub-module, for being to have when the query result of Internet Server feedback When the id information, determine that the Internet Server has the monitor video.
In a kind of preferred embodiment of the present invention, the code stream receiving module includes:
First stop signal sending submodule, for when the destination server is that the association turns server, transmission to stop Stop signal makes the Internet Server stop feeding back the monitor video code stream to the Internet Server;
First communication link cuts off submodule, for disconnecting and the communication link of the Internet Server;
First code stream receiving submodule, the communication link for turning server for leading to the association receive the monitor video code Stream;
Second stop signal sending submodule, for sending when the destination server is the Internet Server Stop signal to the association turns server, so that the association is turned server and stops feeding back the monitor video code stream;
Second communication link cuts off submodule, for disconnecting the communication link for turning server with the association;
Second code stream receiving submodule, the communication link for leading to the Internet Server receive the monitor video code Stream.
In a kind of preferred embodiment of the present invention, described device further include:
Code stream sending module, for playing out the monitor video bit stream to preset video playing platform.
Referring to Fig. 6, shows the embodiment of the invention also discloses a kind of switching device of video communication link, be applied to clothes The scheduling of monitor video code stream between business device, the server includes turning server based on the association depending on connected network communication, is based on Ethernet The Internet Server of communication, and turn server and the Internet Server with the association respectively and pass through unique communication link The hybrid network dispatch server of connection, the communication link are used for transmission the monitor video code stream, specifically include:
Stream request generation module 610 is adjusted, for when receiving the switching request for communication link, according to the switching Request, which generates, adjusts stream request, wherein described to adjust the mark with destination server in stream request;
Type of server judgment module 620, for judging the destination server using the mark of the destination server Type;
First adjust stream request sending module 630, for when type be it is described association turn server when, using the first communication link Tune stream request is sent to the destination server;Wherein, first communication link is the transmission for adapting to view networking The communication link of agreement;
Second adjusts stream request sending module 640, for using the second communication chain when type is the Internet Server Tune stream request is sent to the destination server by road;Wherein, second communication link is the biography for adapting to Ethernet The communication link of defeated agreement;
Video code flow receiving module 650 for disconnecting the communication link of the current server, and receives the target clothes The monitor video code stream for device feedback of being engaged in.
In a kind of preferred embodiment of the present invention, the video code flow receiving module 650 includes:
First network situation acquisition submodule, for obtaining the first network situation of the destination server;
Second network condition acquisition submodule, for obtaining the second network condition of the current server;
Network condition Comparative sub-module, the superiority and inferiority for the first network situation and the second network condition;
Code stream obtains sub- gang mould block, for disconnecting the current clothes when first network situation is better than the second network condition The communication link of business device, and receive the monitor video code stream of the destination server feedback.
In a kind of preferred embodiment of the present invention, described device further include:
User inquire module, for when the second network condition be better than first network situation when, inquire whether the user needs to after Continuous Switch Video communication link;
Code stream obtains module, when user feedback is confirmation switching, disconnects the communication link of the current server, and connect Receive the monitor video code stream of the destination server feedback.
In a kind of preferred embodiment of the present invention, the network condition Comparative sub-module includes:
First network speed acquisition submodule, for extracting the first network speed in the first network situation;
Second network speed acquisition submodule, for extracting the second network speed in second network condition;
Network speed Comparative sub-module, for judging whether first network speed is greater than the second network speed;
Decision sub-module is used for if so, the first network situation is better than second network condition;If it is not, then institute The second network condition is stated better than the first network situation.
In a kind of preferred embodiment of the present invention, the tune stream request generation module 610 includes:
Monitor video code stream judging submodule, for judging whether the destination server preserves the monitor video code Stream;
It adjusts stream request to generate submodule, is used for if so, generating the tune stream request according to the switching request.
In a kind of preferred embodiment of the present invention, the monitor video code stream judging submodule includes:
Id information inquiry request generates submodule, for obtaining the id information of the monitor video code stream, and described in use Id information generates inquiry request, wherein the inquiry request is for inquiring whether be stored with the prison in the destination server Control video code flow;
Id information inquiry request sending submodule, for the inquiry request to be sent to the destination server;
Destination server judging submodule, the query result for being fed back by the destination server judge the target Whether the monitor video code stream is had in server;
Destination server decision sub-module has described for the query result when destination server feedback When id information, determine that the target business device has the monitor video.
The embodiment of the invention also discloses a kind of devices of network video disconnection reconnecting, applied to the communication chain between server Road reconnection, the server include that association turns server, Internet Server, and turns server, Internet service with association respectively The hybrid network dispatch server of device connection, wherein the association turns server and obtained by turning server based on the association depending on connected network communication Take monitor video code stream;The Internet Server obtains monitor video code by the Internet Server based on ethernet communication Stream, described device include:
Speed bit stream obtains module, turns described in server and Internet Server acquisition for obtaining the association respectively The speed of monitor video code stream;
First server configuration module, for configuring based on the server of the fast speed for obtaining the monitor video code stream Server configures slower for secondary server, and the communication link of the disconnection secondary server;
First code stream detection module detects queue for preset code stream to be added in the communication link of the primary server In;
Disconnection module, for the prison that the primary server is sent can not to be received when the hybrid network dispatch server When controlling video code flow, the communication link with the primary server is disconnected, and remove internet from code stream detection queue and take The communication link of business device;
Stream request generation module is adjusted, the tune stream for generating the monitor video code stream is requested, and the tune is flowed and is requested It is sent to the secondary server;
Code stream receiving module, for receiving the monitor video code stream of the secondary server feedback;
Second code stream detection module, for the communication link of the secondary server to be added in the code stream detection queue.
Further, the first server configuration module includes:
First server configures submodule, for being institute when the server for the fast speed for obtaining the monitor video code stream When stating association and turning server, the association is turned into server and is set as the primary server, the Internet Server is set as the pair Server, and disconnect the communication link of the Internet Server;
Second server configures submodule, for being institute when the server for the fast speed for obtaining the monitor video code stream When stating Internet Server, the Internet Server is set as the primary server by the hybrid network dispatch server, by institute It states association and turns server and be set as the secondary server, and disconnect the communication link assisted and turn server.
Further, described device further include:
Detection data obtains module, for obtaining the detection data of the primary server from code stream detection queue;
Data receiver judgment module can not receive the primary server hair for judging whether according to the detection data The monitor video code stream sent;
Disconnection determination module, for being regarded if so, being judged to not receiving the monitoring that the primary server is sent Frequency code stream.
Further, the data receiver judgment module includes:
Code stream transmission speed extracting sub-module, for extracting the real-time code stream transmission speed in the detection data;
Code stream transmission speed judging submodule, for judging whether real-time code stream transmission speed speed is equal to 0;
Decision sub-module is received, for if so, being judged to not receiving the monitoring of the primary server transmission Video code flow.
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 switching method and apparatus of video communication link provided by the present invention, it is described in detail, Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only used In facilitating the understanding of the method and its core concept of the invention;At the same time, for those skilled in the art, according to the present invention Thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as Limitation of the present invention.

Claims (10)

1. a kind of switching method of video communication link, which is characterized in that applied to the scheduling of monitor video code stream between server, The server includes turning server based on the association depending on connected network communication, the Internet Server based on ethernet communication, Yi Jifen Do not turn server with the association and the Internet Server passes through the hybrid network dispatch server of unique communication link connection, institute It states communication link and is used for transmission the monitor video code stream, which comprises
The hybrid network dispatch server is generated when receiving the switching request for communication link according to the switching request Adjust stream request, wherein described to adjust the mark with destination server in stream request;
The hybrid network dispatch server judges the type of the destination server using the mark of the destination server;
When type is that the association turns server, the hybrid network dispatch server is asked the tune stream using the first communication link It asks and is sent to the destination server;Wherein, first communication link is the communication chain for adapting to the transport protocol of view networking Road;
When type is the Internet Server, the hybrid network dispatch server is flowed the tune using the second communication link Request is sent to the destination server;Wherein, second communication link is the communication for adapting to the transport protocol of Ethernet Link;
The hybrid network dispatch server disconnects the communication link of the current server, and receives the destination server feedback The monitor video code stream.
2. the method according to claim 1, wherein the hybrid network dispatch server disconnects the current service The communication link of device, and the step of receiving the monitor video code stream of the destination server feedback includes:
The hybrid network dispatch server obtains the first network situation of the destination server;
The hybrid network dispatch server obtains the second network condition of the current server;
The superiority and inferiority of hybrid network dispatch server the first network situation and the second network condition;
When first network situation is better than the second network condition, the hybrid network dispatch server disconnects the current server Communication link, and receive the monitor video code stream of the destination server feedback.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
When the second network condition is better than first network situation, the hybrid network dispatch server inquires whether the user needs to continue Switch Video communication link;
When user feedback is confirmation switching, the hybrid network dispatch server disconnects the communication link of the current server, And receive the monitor video code stream of the destination server feedback.
4. according to the method described in claim 2, it is characterized in that, the hybrid network dispatch server first network The step of superiority and inferiority of situation and the second network condition includes:
The hybrid network dispatch server extracts the first network speed in the first network situation;
The hybrid network degree server extracts the second network speed in second network condition;
The hybrid network dispatch server judges whether first network speed is greater than the second network speed;
If so, the first network situation is better than second network condition;If it is not, then second network condition is better than institute State first network situation.
5. method according to claim 1 or 2 or 3, which is characterized in that the hybrid network dispatch server is receiving needle When to the switching request of video communication link, the step of adjusting stream request is generated according to the switching request includes:
The hybrid network dispatch server judges whether the destination server preserves the monitor video code stream;
If so, generating the tune stream request according to the switching request.
6. according to the method described in claim 5, it is characterized in that, the hybrid network dispatch server judges the destination service Whether device, which preserves the step of monitor video code stream, includes:
The hybrid network dispatch server obtains the id information of the monitor video code stream, and generates inquiry using the id information Request, wherein the inquiry request is for inquiring in the destination server whether be stored with the monitor video code stream;
The inquiry request is sent to the destination server by the hybrid network dispatch server;
The hybrid network dispatch server is judged in the destination server by the query result that the destination server is fed back Whether the monitor video code stream is had;
When the query result of destination server feedback is to have the id information, the hybrid network dispatch server Determine that the target business device has the monitor video.
7. a kind of switching device of video communication link, which is characterized in that applied to the scheduling of monitor video code stream between server, The server includes turning server based on the association depending on connected network communication, the Internet Server based on ethernet communication, Yi Jifen Do not turn server with the association and the Internet Server passes through the hybrid network dispatch server of unique communication link connection, institute It states communication link and is used for transmission the monitor video code stream, specifically include:
Stream request generation module is adjusted, it is raw according to the switching request for when receiving the switching request for communication link Request is flowed at adjusting, wherein described to adjust the mark in stream request with destination server;
Type of server judgment module judges the type of the destination server for the mark using the destination server;
First adjusts stream request sending module, will be described using the first communication link for when type is that the association turns server Stream request is adjusted to be sent to the destination server;Wherein, first communication link is the transport protocol for adapting to view networking Communication link;
Second adjusts stream request sending module, for using the second communication link described when type is the Internet Server Stream request is adjusted to be sent to the destination server;Wherein, second communication link is the transport protocol for adapting to Ethernet Communication link;
Video code flow receiving module, for disconnecting the communication link of the current server, and it is anti-to receive the destination server The monitor video code stream of feedback.
8. device according to claim 7, which is characterized in that the video code flow receiving module includes:
First network situation acquisition submodule, for obtaining the first network situation of the destination server;
Second network condition acquisition submodule, for obtaining the second network condition of the current server;
Network condition Comparative sub-module, the superiority and inferiority for the first network situation and the second network condition;
Code stream acquisition submodule, for disconnecting the current server when first network situation is better than the second network condition Communication link, and receive the monitor video code stream of the destination server feedback.
9. a kind of terminal characterized by comprising
One or more processors;With
One or more machine readable medias of instruction are stored thereon with, when being executed by one or more of processors, are made Obtain the switching method for one or more video communication links that the terminal is executed as described in claim 1 to 6.
10. a kind of computer readable storage medium, which is characterized in that its computer program stored executes processor as weighed Benefit requires the switching method of 1 to 6 described in any item video communication links.
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