CN108881134B - Communication method and system based on video conference - Google Patents
Communication method and system based on video conference Download PDFInfo
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- CN108881134B CN108881134B CN201710877042.7A CN201710877042A CN108881134B CN 108881134 B CN108881134 B CN 108881134B CN 201710877042 A CN201710877042 A CN 201710877042A CN 108881134 B CN108881134 B CN 108881134B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
- H04N7/152—Multipoint control units therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
- H04N7/155—Conference systems involving storage of or access to video conference sessions
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Abstract
The embodiment of the invention provides a communication method and a system based on a video conference, wherein the method is applied to a video network, a video network server is connected with a plurality of video network terminals to carry out the video conference, the plurality of video network terminals comprise a video network chairman terminal and a video network auxiliary terminal, the video network chairman terminal is used as a conference chairman, the video network chairman terminal is connected with a main conference control client, and the video network auxiliary terminal is connected with an auxiliary conference control client, and the method comprises the following steps: the auxiliary terminal of the video network receives the operation request of the auxiliary conference control client; the auxiliary video network terminal acts on the chairman terminal of the video network and generates an operation instruction according to the operation request; and the auxiliary video networking terminal proxies the video networking chairman terminal and sends the operation instruction to the video networking server for operation. Control operation disperses to the video networking chairman terminal and the video networking auxiliary terminal in the video conference, reduces the operation amount of a single control end, improves the efficiency of control operation, and reduces the probability of errors.
Description
Technical Field
The invention relates to the technical field of video networking, in particular to a communication method based on a video conference and a communication system based on the video conference.
Background
With the rapid development of network technologies, bidirectional communications such as video conferences and video teaching are widely popularized in the aspects of life, work, learning and the like of users.
In a video conference, a plurality of participants usually participate, one of the participants is a chairman, and the video conference is switched among speakers, video walls, monitoring and broadcasting and the like.
Due to the complex operation in the video conference, the operation execution efficiency of a single chairman party is low, and errors are easy to occur.
If the terminal to which the chairman belongs fails, the video conference has a serious problem of being out of control, and operations such as switching speakers, television walls, monitoring and broadcasting cannot be performed.
Disclosure of Invention
In view of the above, embodiments of the present invention are proposed to provide a video conference based communication method and a corresponding video conference based communication system that overcome or at least partially solve the above problems.
In order to solve the above problems, an embodiment of the present invention discloses a communication method based on a video conference, which is applied to a video network, wherein a video network server is connected with a plurality of video network terminals to perform the video conference, the plurality of video network terminals include a video network chairman terminal and a video network auxiliary terminal, the video network chairman terminal is connected with a main conference control client, and the video network auxiliary terminal is connected with an auxiliary conference control client, and the method includes:
the auxiliary terminal of the video network receives the operation request of the auxiliary conference control client;
the auxiliary video network terminal acts on the chairman terminal of the video network and generates an operation instruction according to the operation request;
and the auxiliary video networking terminal proxies the video networking chairman terminal and sends the operation instruction to the video networking server for operation.
Optionally, the video networking auxiliary terminal acts on the video networking chairman terminal and generates an operation instruction according to the operation request, including:
inquiring the video networking parameters of the video networking chairman terminal;
packaging the video networking parameters of the video networking chairman terminal into an operation instruction;
the video networking parameters of the video networking chairman terminal comprise one or more of the following parameters:
the MAC address of the video network chairman terminal, the video network address of the video network chairman terminal and the video network number of the video network chairman terminal.
Optionally, the method further comprises:
the video network chairman terminal receives the operation request of the main conference control client;
the video network chairman terminal generates an operation instruction according to the operation request;
and the video network chairman terminal sends the operation instruction to the video network server for operation.
Optionally, the method further comprises:
the video networking auxiliary terminal proxies the video networking chairman terminal and receives the operation response broadcasted by the video networking server according to the downlink communication link configured by the video networking chairman terminal;
and the video networking auxiliary terminal sends the operation response to the auxiliary conference control client.
Optionally, the video networking auxiliary terminal acting on the video networking chairman terminal and receiving the operation response broadcasted by the video networking server according to the downlink communication link configured by the video networking chairman terminal includes:
determining the MAC address of the chairman terminal of the video network;
and receiving an operation response broadcast to the MAC address by the video network server according to a downlink communication link configured for the video network chairman terminal.
Optionally, the method further comprises:
the video networking chairman terminal receives the operation response broadcasted by the video networking server according to a downlink communication link configured by the video networking chairman terminal;
and the video network chairman terminal sends the operation response to the main conference control client.
The embodiment of the invention also discloses a communication system based on the video conference, which is applied to the video network, wherein a video network server is connected with a plurality of video network terminals for carrying out the video conference, the plurality of video network terminals comprise a video network chairman terminal and a video network auxiliary terminal, the video network chairman terminal is used as a conference chairman, the video network chairman terminal is connected with a main conference control client, and the video network auxiliary terminal is connected with an auxiliary conference control client;
the auxiliary terminal of the video network comprises:
the first operation request receiving module is used for receiving an operation request of the auxiliary conference control client;
the first operation instruction generation module is used for acting the video network chairman terminal and generating an operation instruction according to the operation request;
and the first operation instruction sending module is used for acting the video network chairman terminal and sending the operation instruction to the video network server for operation.
Optionally, the first operation instruction generating module includes:
the video networking parameter query submodule is used for querying the video networking parameters of the video networking chairman terminal;
the operating instruction packaging sub-module is used for packaging the video networking parameters of the video networking chairman terminal into an operating instruction;
the video networking parameters of the video networking chairman terminal comprise one or more of the following parameters:
the MAC address of the video network chairman terminal, the video network address of the video network chairman terminal and the video network number of the video network chairman terminal.
Optionally, the head office terminal of the video network includes:
the second operation request receiving module is used for receiving the operation request of the main conference control client;
the second operation instruction generating module is used for generating an operation instruction according to the operation request;
and the second operation instruction sending module is used for sending the operation instruction to the video network server for operation.
Optionally, the auxiliary terminal of the video network further includes:
the first operation response receiving module is used for acting the video networking chairman terminal and receiving the operation response broadcasted by the video networking server according to a downlink communication link configured by the video networking chairman terminal;
and the first operation response sending module is used for sending the operation response to the auxiliary conference control client.
Optionally, the first operation response receiving module includes:
the MAC address determining submodule is used for determining the MAC address of the chairman terminal of the video network;
and the MAC address receiving submodule is used for receiving the operation response broadcast to the MAC address by the video network server according to the downlink communication link configured for the video network chairman terminal.
Optionally, the head office terminal of the video network further includes:
the second operation response receiving module is used for receiving operation responses broadcasted by the video networking server according to a downlink communication link configured by a video networking chairman terminal;
and the second operation response sending module is used for sending the operation response to the master control client.
The embodiment of the invention has the following advantages:
the embodiment of the invention is applied to the video network, the video network server is connected with a plurality of video network terminals to carry out video conference, the plurality of video network terminals comprise a video network chairman terminal and a video network auxiliary terminal which are used as conference chairman, the video network chairman terminal is connected with a main conference control client, the video network auxiliary terminal is connected with an auxiliary conference control client, the video network auxiliary terminal receives an operation request of the auxiliary conference control client, acts on the video network chairman terminal and generates an operation instruction, on one hand, the control operation in the video conference is dispersed to the video networking chairman terminal and the video networking auxiliary terminal, so that the operation amount of a single control end is reduced, the efficiency of the control operation is improved, and the error probability is reduced; on the other hand, if a certain control end has a fault, other control ends can also realize the control function, so that the problem of out-of-control video conference is avoided, and the normal running of the video conference is ensured.
Drawings
FIG. 1 is a networking diagram of a video network, according to one embodiment of the invention;
FIG. 2 is a diagram illustrating a hardware architecture of a node server according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a hardware structure of an access switch according to an embodiment of the present invention;
fig. 4 is a schematic hardware structure diagram of an ethernet protocol conversion gateway according to an embodiment of the present invention;
FIG. 5 is a flow chart of the steps of a method of communication based on video conferencing in accordance with one embodiment of the present invention;
FIG. 6 is a system architecture diagram of one embodiment of the present invention;
FIG. 7 is a flow chart illustrating steps in another video conference based communication method, in accordance with one embodiment of the present invention;
FIG. 8 is a flow chart of steps in another video conference based communication method in accordance with one embodiment of the present invention;
FIG. 9 is an exemplary diagram of a signaling of one embodiment of the present invention;
FIG. 10 is a flow chart of steps in another video conference based communication method in accordance with one embodiment of the present invention;
fig. 11 is a block diagram of a communication system based on video conferencing according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.
The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.
To better understand the embodiments of the present invention, the following description refers to the internet of view:
some of the technologies applied in the video networking are as follows:
network Technology (Network Technology)
Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face the potentially enormous video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network circuit Switching (circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.
Switching Technology (Switching Technology)
The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.
Server Technology (Server Technology)
The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.
Storage Technology (Storage Technology)
The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, and is directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.
Network Security Technology (Network Security Technology)
The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.
Service Innovation Technology (Service Innovation Technology)
The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.
Networking of the video network is as follows:
the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.
As shown in fig. 1, the video network is divided into an access network and a metropolitan network.
The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.
The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.
Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.
The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.
The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.
Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.
The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.
Video networking device classification
1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: servers, switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.
1.2 wherein the devices of the access network part can be mainly classified into 3 types: node servers, access switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.).
The specific hardware structure of each access network device is as follows:
a node server:
as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;
the network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.
The access switch:
as shown in fig. 3, the network interface module mainly includes a network interface module (a downlink network interface module 301 and an uplink network interface module 302), a switching engine module 303 and a CPU module 304;
wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the data packet coming from the CPU module 204 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.
The switching engine module 303 polls all packet buffer queues, which in this embodiment of the present invention is divided into two cases:
if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;
if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.
The rate control module 208 is configured by the CPU module 204, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.
Ethernet protocol conversion gateway：
As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.
Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;
the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MACSA of the ethernet coordination gateway, and the ethernet length or frame type, and sends the packet.
The other modules in the ethernet protocol gateway function similarly to the access switch.
A terminal:
the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.
1.3 devices of the metropolitan area network part can be mainly classified into 2 types: node server, node exchanger, metropolitan area server. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.
2. Video networking packet definition
2.1 Access network packet definition
The data packet of the access network mainly comprises the following parts: destination Address (DA), Source Address (SA), reserved bytes, payload (pdu), CRC.
As shown in the following table, the data packet of the access network mainly includes the following parts:
| DA | SA | Reserved | Payload | CRC |
wherein:
the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are 256 possibilities at most, the second byte to the sixth byte are metropolitan area network addresses, and the seventh byte and the eighth byte are access network addresses;
the Source Address (SA) is also composed of 8 bytes (byte), defined as the same as the Destination Address (DA);
the reserved byte consists of 2 bytes;
the payload part has different lengths according to different types of datagrams, and is 64 bytes if the datagram is various types of protocol packets, and is 32+1024 or 1056 bytes if the datagram is a unicast packet, of course, the length is not limited to the above 2 types;
the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.
2.2 metropolitan area network packet definition
The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present invention: a label to uniquely describe a metropolitan area network device.
In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.
As shown in the following table, the data packet of the metro network mainly includes the following parts:
| DA | SA | Reserved | label (R) | Payload | CRC |
Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.
Based on the characteristics of the video network, one of the core concepts of the embodiment of the invention is provided, and an auxiliary video network terminal is introduced into the video conference following the protocol of the video network, and the auxiliary video network terminal is a hot standby of a video network terminal of a conference chairman and shares the function of controlling the video conference.
Referring to fig. 5, a flowchart illustrating steps of a communication method based on a video conference according to an embodiment of the present invention is shown, where the method may be applied in a video network, and specifically may include the following steps:
As shown in fig. 6, in the video network 600, a video network server 610 connects a plurality of video network terminals 620 to perform a video conference.
Among them, the plurality of video network terminals 620 includes a video network chairman terminal 621 as a chairman of the conference and a video network auxiliary terminal 622.
The video network chairman terminal 621 is connected with the main conference client 631, and the video network auxiliary terminal 622 is connected with the auxiliary conference client 632.
Further, the director client 631 is connected to the view network chairman terminal 621 through a TCP (Transmission Control Protocol) or the like, the view network chairman terminal 621 accesses the view network 600 through a view network Protocol V2V, and the director client 631 may forward the operation request through the view network chairman terminal 621 to implement communication with the view network server 610.
The auxiliary conference control client 632 is connected to the auxiliary terminal 622 of the video network through TCP or the like, the auxiliary terminal 622 of the video network is connected to the video network 600 through the video networking protocol V2V, and the auxiliary conference control client 632 can proxy the video network chairman terminal 621 and forward the operation request through the auxiliary terminal 622 of the video network, thereby realizing communication with the video network server 610.
It should be noted that, the agent is a subsidiary conference control client that communicates with the video network server in the role of the video network chairman terminal, and for the video network server, the subsidiary conference control client is the video network chairman terminal.
In a particular implementation, the video conference may be a bundle of multiple live broadcasts.
For live interactive processes, there are generally the following ways:
1. initiating live broadcast
Live broadcast data is also broadcast data
The method comprises the steps that a live video network terminal (set top box) sends an application command, a video network server automatically distributes a path of broadcast data after receiving the application, sends a coding and decoding command to the video network terminal (set top box), and simultaneously commands an upper-layer switch of the live video network terminal (set top box) to open a path of the broadcast data. The live video network terminal (set-top box) can watch the broadcast initiated by the live video network terminal, and the initiator is also a watching party.
2. Watching live broadcast
The watching video network terminal (set-top box) sends an application command, and the command comprises the number of the live broadcasting initiating party. After receiving the application, the video network server inquires whether the video network terminal (set-top box) initiating the live broadcast is connected to the network or not and whether the live broadcast is initiated or not. If the condition is not satisfied, informing the watching terminal (set top box) of the watching video network that the watching is failed.
If the conditions are met, the video network server needs to find a path between a video network terminal (set top box) initiating the live broadcast and a video network terminal (set top box) watching, a path of all switches between the live video network terminal (set top box) and the video network terminal (set top box) watching for the broadcast data is opened, and simultaneously a decoding command is sent to the video network terminal (set top box) watching, so that the video network terminal (set top box) watching can watch the live broadcast.
In the embodiment of the invention, the main conference control client and the auxiliary conference control client can be operated by different users, and the users can control the video conference through the main conference control client and the auxiliary conference control client based on different division of labor.
For example, a user operates the main conference control client to control switching of speakers in a video conference, a user operates the auxiliary conference control client to control switching of a video wall in the video conference, a user operates the auxiliary conference control client to control playing and monitoring in the video conference, and the like.
And 502, the auxiliary terminal of the video network acts on the chairman terminal of the video network and generates an operation instruction according to the operation request.
In the embodiment of the present invention, the auxiliary conference client may send an operation request, such as switching speakers, switching video walls, and the like, to the auxiliary terminal of the video networking through a protocol such as TCP.
After receiving the operation request, the auxiliary terminal of the video network may proxy the chairman terminal of the video network according to the video network protocol V2V to generate a corresponding operation instruction.
In one embodiment of the present invention, step 502 may include the following sub-steps:
and a substep S11 of inquiring the video network parameters of the video network chairman terminal.
And a substep S12, packaging the video network parameters of the video network chairman terminal into an operation instruction.
In a specific implementation, the parameters of the video network of the head office terminal of the video network include one or more of the following:
the MAC address of the video network chairman terminal, the video network address of the video network chairman terminal and the video network number of the video network chairman terminal.
In video networking, a packet is sent from a Source Address (SA) to a Destination Address (DA) and from a source video networking number to a destination video networking number.
In the embodiment of the invention, based on the transmission provision, the user can input the video network number of the video network chairman terminal into the video network auxiliary terminal after determining the video network chairman terminal.
The auxiliary video networking terminal inquires the MAC address, the video networking address and the video networking number of the video networking chairman terminal which are input in advance, the MAC address in the data packet of the operation instruction is set as the MAC address of the video networking chairman terminal, the Source Address (SA) in the data packet of the operation instruction is set as the video networking address of the video networking chairman terminal, and the source video networking number in the data packet of the operation instruction is set as the video networking number of the video networking chairman terminal instead of the MAC address, the video networking address and the video networking number of the video networking auxiliary terminal, so that the agent video networking chairman terminal generates the operation instruction.
Of course, the Destination Address (DA) in the data packet of the operation command is still the video network address of the video network server, and the destination number is still the video network number of the video network server.
The auxiliary terminal broadcasts the operation command in the video network, for the video network server, the MAC address of the data packet of the operation command is the MAC address of the video network chairman terminal, the Source Address (SA) is the video network address of the video network chairman terminal, the source video network number is the video network number of the video network chairman terminal, and if the operation command is from the video network chairman terminal, the relevant operation is carried out according to the operation command, such as switching speakers, switching television walls, and the like.
The embodiment of the invention is applied to the video network, the video network server is connected with a plurality of video network terminals to carry out video conference, the plurality of video network terminals comprise a video network chairman terminal and a video network auxiliary terminal which are used as conference chairman, the video network chairman terminal is connected with a main conference control client, the video network auxiliary terminal is connected with an auxiliary conference control client, the video network auxiliary terminal receives an operation request of the auxiliary conference control client, acts on the video network chairman terminal and generates an operation instruction, on one hand, the control operation in the video conference is dispersed to the video networking chairman terminal and the video networking auxiliary terminal, so that the operation amount of a single control end is reduced, the efficiency of the control operation is improved, and the error probability is reduced; on the other hand, if a certain control end has a fault, other control ends can also realize the control function, so that the problem of out-of-control video conference is avoided, and the normal running of the video conference is ensured.
Referring to fig. 7, a flowchart illustrating steps of another communication method based on video conference according to an embodiment of the present invention is shown, where the method may be applied in a video network, and specifically may include the following steps:
and 701, the chairman terminal of the video network receives an operation request of the master control client.
And step 702, the chairman terminal of the video network generates an operation instruction according to the operation request.
And 703, the chairman terminal of the video network sends the operation instruction to the video network server for operation.
In the embodiment of the present invention, the master control client may send an operation request, such as switching speakers, switching video walls, and the like, to the chairman terminal of the video network through a protocol such as TCP.
After receiving the operation request, the head office terminal of the video network may generate a corresponding operation instruction according to the video network protocol V2V.
In a specific implementation, the head office terminal of the video network inquires its MAC address, video network number, and sets it as the MAC address, Source Address (SA), source video network number in the data packet of the operation instruction.
Of course, the Destination Address (DA) in the data packet of the operation command is still the video network address of the video network server, and the destination number is still the video network number of the video network server.
The video network chairman terminal broadcasts the operation instruction in the video network, for the video network server, the MAC address of the data packet of the operation instruction is the MAC address of the video network chairman terminal, the Source Address (SA) is the video network address of the video network chairman terminal, the source video network number is the video network number of the video network chairman terminal, and if the operation instruction is from the video network chairman terminal, relevant operations such as switching speakers, switching television walls and the like are carried out according to the operation instruction.
Referring to fig. 8, a flowchart illustrating steps of another communication method based on video conference according to an embodiment of the present invention is shown, where the method may be applied in a video network, and specifically may include the following steps:
And step 802, the auxiliary terminal of the video network sends the operation response to the auxiliary conference control client.
After the operation is completed, the video network server generates a corresponding operation response, and the corresponding operation instruction is considered to come from the video network chairman terminal by the video network server, so that the operation response is returned to the video network chairman terminal.
In the embodiment of the present invention, the operation instruction may actually come from the chairman terminal of the video network or from the auxiliary terminal of the video network.
For example, as shown in fig. 9, the operation instruction for switching the talker, i.e., switching the talker, is from the head office terminal of the video network, and the operation instruction for switching the video wall, i.e., switching the video wall, is from the auxiliary terminal of the video network.
For the auxiliary terminal of the video network, no matter the operation instruction comes from the chairman terminal of the video network or the auxiliary terminal of the video network, the chairman terminal of the video network can be used for receiving the operation response and sending the operation response to the auxiliary conference control client, so that the signaling synchronization is realized.
In one embodiment of the present invention, step 801 may include the following sub-steps:
and a substep S21 of determining the MAC address of the head office terminal of the video network.
And a substep S22 of receiving an operation response broadcasted by the video network server to the MAC address according to the downlink communication link configured to the video network chairman terminal.
In the embodiment of the invention, after the video network server packages the operation response, the operation response is broadcasted in the video network to be sent to the video network chairman terminal with the specified MAC address.
Therefore, the auxiliary terminal of the video network can inquire the MAC address of the prior input video network chairman terminal, monitor the data packet of which the MAC address is the MAC of the video network chairman terminal in the video network, and receive the operation response of the video network server.
In this practical application, the video network is a network with a centralized control function, and includes a main control server and a lower level network device, where the lower level network device includes a terminal, and one of the core concepts of the video network is that a table is configured for a downlink communication link of a current service by notifying a switching device by the main control server, and then a data packet is transmitted based on the configured table.
Namely, the communication method in the video network includes:
the main control server configures a downlink communication link of the current service;
and transmitting the data packet of the current service sent by the source terminal to a target terminal (such as a video network chairman terminal) according to the downlink communication link.
In the embodiment of the present invention, configuring the downlink communication link of the current service includes: informing the switching equipment related to the downlink communication link of the current service to allocate a table;
further, transmitting according to the downlink communication link includes: the configured table is consulted, and the switching equipment transmits the received data packet through the corresponding port.
In particular implementations, the services include unicast communication services and multicast communication services. Namely, whether multicast communication or unicast communication, the core concept of the table matching-table can be adopted to realize communication in the video network.
As described above, the video network includes an access network portion, in which the master server is a node server, and the lower-level network device includes an access switch and a terminal.
For the unicast communication service in the access network, the step of configuring the downlink communication link of the current service by the master server may include the following steps:
in the substep S31, the main control server obtains downlink communication link information of the current service according to the service request protocol packet initiated by the source terminal, wherein the downlink communication link information includes downlink communication port information of the main control server and the access switch participating in the current service;
in the substep S32, the main control server sets a downlink port to which a packet of the current service is directed in a packet address table inside the main control server according to the downlink communication port information of the control server; sending a port configuration command to a corresponding access switch according to the downlink communication port information of the access switch;
in sub-step S33, the access switch sets the downstream port to which the packet of the current service is directed in its internal packet address table according to the port configuration command.
For a multicast communication service (e.g., video conference) in the access network, the step of the master server obtaining downlink information of the current service may include the following sub-steps:
in the substep S41, the main control server obtains a service request protocol packet initiated by the target terminal and applying for the multicast communication service, wherein the service request protocol packet includes service type information, service content information and an access network address of the target terminal; wherein, the service content information comprises a service number;
substep S42, the master control server extracts the access network address of the source terminal in the preset content-address mapping table according to the service number;
in the substep of S43, the main control server obtains the multicast address corresponding to the source terminal and distributes the multicast address to the target terminal; and acquiring the communication link information of the current multicast service according to the service type information and the access network addresses of the source terminal and the target terminal.
Referring to fig. 10, a flowchart illustrating steps of another communication method based on video conference according to an embodiment of the present invention is shown, where the method may be applied in a video network, and specifically may include the following steps:
And step 1002, the chairman terminal of the video network sends the operation response to the main conference control client.
After the operation is completed, the video network server generates a corresponding operation response, and the corresponding operation instruction is considered to come from the video network chairman terminal by the video network server, so that the operation response is returned to the video network chairman terminal.
In the embodiment of the present invention, the operation instruction may actually come from the chairman terminal of the video network or from the auxiliary terminal of the video network.
For example, as shown in fig. 9, the operation instruction for switching the talker, i.e., switching the talker, is from the head office terminal of the video network, and the operation instruction for switching the video wall, i.e., switching the video wall, is from the auxiliary terminal of the video network.
For the video network chairman terminal, no matter the operation instruction comes from the video network chairman terminal or the video network auxiliary terminal, the operation response can be received and sent to the main conference control client, and signaling synchronization is achieved.
Further, after the video network server packages the operation response, the video network server broadcasts the operation response in the video network to send the operation response to the video network chairman terminal with the specified MAC address.
Therefore, the chairman terminal of the video network can determine the MAC address of the chairman terminal of the video network, and the data packet of which the MAC address is the MAC of the chairman terminal of the video network is monitored in the video network, so that the operation response of the video network server is received.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Referring to fig. 11, a block diagram of a communication system based on a video conference according to an embodiment of the present invention is shown, where the system may be applied in a video network, a video network server connects a plurality of video network terminals to perform a video conference, the plurality of video network terminals include a video network chairman terminal as a chairman of the conference and a video network auxiliary terminal, the video network chairman terminal is connected to a main conference control client, and the video network auxiliary terminal is connected to an auxiliary conference control client;
the auxiliary terminal of the video network comprises:
a first operation request receiving module 1101, configured to receive an operation request of the secondary conference client;
a first operation instruction generating module 1102, configured to act as an agent for the chairman terminal of the video network and generate an operation instruction according to the operation request;
a first operation instruction sending module 1103, configured to proxy the head office terminal of the video networking, and send the operation instruction to the video networking server for operation.
In an embodiment of the present invention, the first operation instruction generating module 1102 includes:
the video networking parameter query submodule is used for querying the video networking parameters of the video networking chairman terminal;
the operating instruction packaging sub-module is used for packaging the video networking parameters of the video networking chairman terminal into an operating instruction;
the video networking parameters of the video networking chairman terminal comprise one or more of the following parameters:
the MAC address of the video network chairman terminal, the video network address of the video network chairman terminal and the video network number of the video network chairman terminal.
In one embodiment of the present invention, the head office terminal of the video network includes:
the second operation request receiving module is used for receiving the operation request of the main conference control client;
the second operation instruction generating module is used for generating an operation instruction according to the operation request;
and the second operation instruction sending module is used for sending the operation instruction to the video network server for operation.
In one embodiment of the present invention, the auxiliary terminal for video networking further includes:
the first operation response receiving module is used for acting the video networking chairman terminal and receiving the operation response broadcasted by the video networking server according to a downlink communication link configured by the video networking chairman terminal;
and the first operation response sending module is used for sending the operation response to the auxiliary conference control client.
In one embodiment of the present invention, the first operation response receiving module includes:
the MAC address determining submodule is used for determining the MAC address of the chairman terminal of the video network;
and the MAC address receiving submodule is used for receiving the operation response broadcast to the MAC address by the video network server according to the downlink communication link configured for the video network chairman terminal.
In an embodiment of the present invention, the head office terminal further includes:
the second operation response receiving module is used for receiving operation responses broadcasted by the video networking server according to a downlink communication link configured by a video networking chairman terminal;
and the second operation response sending module is used for sending the operation response to the master control client. For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The communication method based on the video conference and the communication system based on the video conference provided by the invention are introduced in detail, and a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A communication method based on video conference is characterized in that a video network server is connected with a plurality of video network terminals to carry out video conference when applied to a video network, the plurality of video network terminals comprise a video network chairman terminal and a video network auxiliary terminal which are used as conference chairman, the video network chairman terminal is connected with a main conference control client, the video network auxiliary terminal is connected with an auxiliary conference control client, and the method comprises the following steps:
the auxiliary terminal of the video network receives the operation request of the auxiliary conference control client;
the auxiliary video network terminal acts on the chairman terminal of the video network and generates an operation instruction according to the operation request;
the auxiliary video networking terminal proxies the video networking chairman terminal and sends the operation instruction to the video networking server for operation;
the auxiliary terminal of the video network acts the chairman terminal of the video network and generates an operation instruction according to the operation request, and the operation instruction comprises the following steps:
inquiring the video networking parameters of the video networking chairman terminal;
and packaging the video networking parameters of the video networking chairman terminal into an operation instruction.
2. The method of claim 1, wherein the parameters of the head end of the video network comprise one or more of:
the MAC address of the video network chairman terminal, the video network address of the video network chairman terminal and the video network number of the video network chairman terminal.
3. The method of claim 1, further comprising:
the video network chairman terminal receives the operation request of the main conference control client;
the video network chairman terminal generates an operation instruction according to the operation request;
and the video network chairman terminal sends the operation instruction to the video network server for operation.
4. The method of claim 1, 2 or 3, further comprising:
the video networking auxiliary terminal proxies the video networking chairman terminal and receives the operation response broadcasted by the video networking server according to the downlink communication link configured by the video networking chairman terminal;
and the video networking auxiliary terminal sends the operation response to the auxiliary conference control client.
5. The method of claim 4, wherein the video networking auxiliary terminal acting on behalf of the video networking chairman terminal and receiving the operation response broadcasted by the video networking server according to the downlink communication link configured by the video networking chairman terminal comprises:
determining the MAC address of the chairman terminal of the video network;
and receiving an operation response broadcast to the MAC address by the video network server according to a downlink communication link configured for the video network chairman terminal.
6. The method of claim 1, 2 or 3, further comprising:
the video networking chairman terminal receives the operation response broadcasted by the video networking server according to a downlink communication link configured by the video networking chairman terminal;
and the video network chairman terminal sends the operation response to the main conference control client.
7. A communication system based on video conference is characterized in that a video networking server is connected with a plurality of video networking terminals to carry out video conference when applied to video networking, the plurality of video networking terminals comprise a video networking chairman terminal and a video networking auxiliary terminal which are used as conference chairman, the video networking chairman terminal is connected with a main conference control client, and the video networking auxiliary terminal is connected with an auxiliary conference control client;
the auxiliary terminal of the video network comprises:
the first operation request receiving module is used for receiving an operation request of the auxiliary conference control client;
the first operation instruction generation module is used for acting the video network chairman terminal and generating an operation instruction according to the operation request;
the first operation instruction sending module is used for acting the video network chairman terminal and sending the operation instruction to the video network server for operation;
the first operation instruction generation module comprises:
the video networking parameter query submodule is used for querying the video networking parameters of the video networking chairman terminal;
and the operation instruction packaging submodule is used for packaging the video networking parameters of the video networking chairman terminal into the operation instruction.
8. The system of claim 7, wherein the video network parameters of the video network chairman terminal comprise one or more of:
the MAC address of the video network chairman terminal, the video network address of the video network chairman terminal and the video network number of the video network chairman terminal.
9. The system of claim 7 or 8, wherein the video networking assistance terminal further comprises:
the first operation response receiving module is used for acting the video networking chairman terminal and receiving the operation response broadcasted by the video networking server according to a downlink communication link configured by the video networking chairman terminal;
and the first operation response sending module is used for sending the operation response to the auxiliary conference control client.
10. The system of claim 9, wherein the first operational response receiving module comprises:
the MAC address determining submodule is used for determining the MAC address of the chairman terminal of the video network;
and the MAC address receiving submodule is used for receiving the operation response broadcast to the MAC address by the video network server according to the downlink communication link configured for the video network chairman terminal.
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| JP2016010039A (en) * | 2014-06-25 | 2016-01-18 | 株式会社リコー | Remote conference system, video processing method, video controller, conference terminal, and program thereof |
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