CN110611645B - Communication method and system of video telephone - Google Patents

Communication method and system of video telephone Download PDF

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Publication number
CN110611645B
CN110611645B CN201810623752.1A CN201810623752A CN110611645B CN 110611645 B CN110611645 B CN 110611645B CN 201810623752 A CN201810623752 A CN 201810623752A CN 110611645 B CN110611645 B CN 110611645B
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video
virtual terminal
terminal
video network
streaming media
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CN110611645A (en
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张小帅
李云鹏
张新博
王艳辉
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Visionvera Information Technology Co Ltd
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Visionvera Information Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/30—Managing network names, e.g. use of aliases or nicknames
    • H04L61/3015—Name registration, generation or assignment
    • 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
    • H04L65/10—Architectures or entities
    • H04L65/1063—Application servers providing network services
    • 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
    • H04L65/1066—Session management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The embodiment of the invention provides a communication method and a system of a video telephone, wherein the method comprises the following steps: the first streaming media server receives a communication request of a video telephone initiated by the first video networking terminal to the second video networking terminal; the first streaming media server configures a first virtual terminal number for the first video network terminal according to the communication request; the first streaming media server creates a first virtual terminal based on the first virtual terminal number; and the first streaming media server initiates a communication instruction of the video telephone to the second video network terminal through the first virtual terminal and sends the communication instruction to the video network server. The video networking number is used as the virtual terminal number for cyclic utilization and dynamic multiplexing, and the service of a large number of video telephones can be carried out by configuring a small number of video networking numbers.

Description

Communication method and system of video telephone
Technical Field
The invention relates to the technical field of video networking, in particular to a communication method and a communication system of a video telephone.
Background
The video network is a real-time network, can realize the real-time transmission of full-network high-definition videos, and pushes a plurality of network applications to high-definition video, and high-definition is face-to-face.
At present, video networking numbers are special for special numbers in the service of video telephones, namely, each video networking number is distributed to an individual user for use, and other users cannot use the video networking numbers.
However, the number of the video networking numbers is fixed, so that part of users can not use the video networking numbers, and the video telephone service can not be carried out.
Disclosure of Invention
In view of the above, embodiments of the present invention are proposed to provide a communication method and system for a videophone that overcomes or at least partially solves the above problems.
According to an aspect of the present invention, there is provided a communication method of a video telephone, which is applied in a video network, wherein the video network includes a video network server, a first streaming media server, a second streaming media server, a first video network terminal and a second video network terminal, the method includes:
the first streaming media server receives a communication request of a video telephone initiated by the first video networking terminal to the second video networking terminal;
the first streaming media server configures a first virtual terminal number for the first video network terminal according to the communication request;
the first streaming media server creates a first virtual terminal based on the first virtual terminal number;
and the first streaming media server initiates a communication instruction of the video telephone to the second video network terminal through the first virtual terminal and sends the communication instruction to the video network server.
Optionally, the video network further comprises a management platform;
the first streaming media server configures a first virtual terminal number for the first video network terminal according to the communication request, and the method comprises the following steps:
sending a first query request to the management platform according to the communication request;
receiving a first query response returned by the management platform for the first query request;
if the first query response indicates that the first video network terminal is bound with a virtual terminal number, setting the virtual terminal number bound with the first video network terminal as a first virtual terminal number;
if the first query response is that the first video network terminal is not bound with the virtual terminal number, querying an idle virtual terminal number;
and configuring the idle virtual terminal number as a first virtual terminal number to the first video network terminal.
Optionally, the method further comprises:
the second streaming media server receives a communication instruction sent by the video networking server and used for the first virtual terminal to initiate the video telephone to the second video networking terminal;
the second streaming media server configures a second virtual terminal number for the second video network terminal according to the communication instruction;
and the second streaming media server creates a second virtual terminal based on the second virtual terminal number.
Optionally, the video network further comprises a management platform;
the second streaming media server configures a second virtual terminal number for the second video network terminal according to the communication instruction, and the method includes:
sending a second query request to the management platform according to the communication instruction;
receiving a second query response returned by the management platform for the second query request;
if the second query response indicates that the second video network terminal is bound with a virtual terminal number, setting the virtual terminal number bound with the second video network terminal as a second virtual terminal number;
if the second query response is that the second video network terminal is not bound with the virtual terminal number, querying an idle virtual terminal number;
and configuring the idle virtual terminal number as a second virtual terminal number to the second video network terminal.
Optionally, the method further comprises:
the first streaming media server receives audio and video data which are sent by the video network server and collected by the second video network terminal through the first virtual terminal;
the first streaming media server sends the audio and video data to the first video network terminal for playing;
the first streaming media server receives audio and video data collected by the first video network terminal;
and the first streaming media server sends the audio and video data to the video networking server through the first virtual terminal.
Optionally, the method further comprises:
the second streaming media server receives audio and video data which are sent by the video network server and collected by the first video network terminal through the second virtual terminal;
the second streaming media server sends the audio and video data to the second video network terminal for playing;
the second streaming media server receives audio and video data collected by the second video network terminal;
and the second streaming media server sends the audio and video data to the video networking server through the second virtual terminal.
Optionally, the method further comprises:
and when the video telephone is finished, the first streaming media server cancels the first virtual terminal and releases the first virtual terminal number.
Optionally, the method further comprises:
and when the video telephone is finished, the second streaming media server cancels the second virtual terminal and releases the number of the second virtual terminal.
According to another aspect of the present invention, a communication system of a video telephone is provided, which is applied to a video network, wherein the video network comprises a video network server, a first streaming media server, a second streaming media server, a first video network terminal and a second video network terminal;
the first streaming media server comprises:
a communication request receiving module, configured to receive a communication request of a video telephone initiated by the first video networking terminal to the second video networking terminal;
the first virtual terminal number configuration module is used for configuring a first virtual terminal number for the first video network terminal according to the communication request;
the first virtual terminal creating module is used for creating a first virtual terminal based on the first virtual terminal number;
and the communication instruction sending module is used for initiating a communication instruction of the video telephone to the second video network terminal through the first virtual terminal and sending the communication instruction to the video network server.
Optionally, the video network further comprises a management platform;
the first virtual terminal number configuration module comprises:
the first query request sending submodule is used for sending a first query request to the management platform according to the communication request;
the first query response receiving submodule is used for receiving a first query response returned by the management platform aiming at the first query request;
the first number setting submodule is used for setting the virtual terminal number bound by the first video network terminal as a first virtual terminal number if the first query response indicates that the first video network terminal is bound with the virtual terminal number;
the first number query submodule is used for querying an idle virtual terminal number if the first query response indicates that the first video network terminal is not bound with the virtual terminal number;
and the first number configuration submodule is used for configuring the idle virtual terminal number as a first virtual terminal number to the first video network terminal.
Optionally, the second streaming server includes:
the communication instruction receiving module is used for receiving a communication instruction which is sent by the video networking server and used for the first virtual terminal to initiate the video telephone to the second video networking terminal;
the second virtual terminal number configuration module is used for configuring a second virtual terminal number for the second video network terminal according to the communication instruction;
and the second virtual terminal creating module is used for creating a second virtual terminal based on the second virtual terminal number.
Optionally, the video network further comprises a management platform;
the second virtual terminal number configuration module comprises:
the second query request sending submodule is used for sending a second query request to the management platform according to the communication instruction;
the second query response receiving submodule is used for receiving a second query response returned by the management platform aiming at the second query request;
the second number setting submodule is used for setting the virtual terminal number bound by the second video network terminal as a second virtual terminal number if the second query response indicates that the second video network terminal is bound with the virtual terminal number;
the second number query submodule is used for querying an idle virtual terminal number if the second query response indicates that the second video network terminal is not bound with the virtual terminal number;
and the second number configuration submodule is used for configuring the idle virtual terminal number as a second virtual terminal number to the second video network terminal.
Optionally, the first streaming media server further comprises:
the first audio and video data receiving module is used for receiving the audio and video data which are sent by the video network server and collected by the second video network terminal through the first virtual terminal;
the first audio and video data sending module is used for sending the audio and video data to the first video network terminal for playing;
the second audio and video data receiving module is used for receiving the audio and video data collected by the first video network terminal;
and the second audio and video data sending module is used for sending the audio and video data to the video networking server through the first virtual terminal.
Optionally, the second streaming media server further includes:
the third audio and video data receiving module is used for receiving the audio and video data which are sent by the video network server and collected by the first video network terminal through the second virtual terminal;
the third audio and video data sending module is used for sending the audio and video data to the second video network terminal for playing;
the fourth audio and video data receiving module is used for receiving the audio and video data collected by the second video network terminal;
and the fourth audio and video data sending module is used for sending the audio and video data to the video networking server through the second virtual terminal.
Optionally, the first streaming media server further comprises:
and the first end processing module is used for canceling the first virtual terminal and releasing the first virtual terminal number when the video telephone is ended.
Optionally, the second streaming media server further includes:
and the second ending processing module is used for canceling the second virtual terminal and releasing the number of the second virtual terminal when the video telephone is ended.
The embodiment of the invention has the following advantages:
in the embodiment of the invention, a first streaming media server receives a communication request of a first video network terminal for initiating a video telephone to a second video network terminal, configures a first virtual terminal number for the first video network terminal according to the communication request, creates a first virtual terminal based on the first virtual terminal number, initiates a communication instruction of the video telephone to the second video network terminal through the first virtual terminal, sends the communication instruction to the video network server, and cyclically utilizes the video network number as the virtual terminal number, and dynamically multiplexes to realize that a large amount of video telephone services can be carried out by configuring a small amount of video network numbers.
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 flowchart illustrating steps of a communication method of a video telephone according to an embodiment of the present invention;
fig. 6 is a flow chart illustrating steps of another method of communicating with a videophone in accordance with an embodiment of the present invention;
fig. 7 is a flowchart illustrating steps of a communication method of a video telephone according to another embodiment of the present invention;
fig. 8 is a flowchart illustrating steps of a communication method of a video telephone according to another embodiment of the present invention;
fig. 9 is a block diagram of a communication system of a videophone 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 incoming data packet of the CPU module 304 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 308 is configured by the CPU module 304, 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 MAC SA of the ethernet protocol 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.
Referring to fig. 5, a flowchart illustrating steps of a communication method of a video telephone according to an embodiment of the present invention is shown, where the method may be applied to a video network, and the video network includes a video network server, a first streaming media server, a second streaming media server, and a first video network terminal and a second video network terminal, which may specifically include the following steps:
step 501, a first streaming media server receives a communication request of a video telephone initiated by the first video network terminal to the second video network terminal.
In video networking, a streaming server is responsible for the service of video telephone of video networking terminals in a zone, such as a certain city, a certain company, a certain street, etc.
In the embodiment of the invention, the first streaming media server is responsible for the service of the video telephone of the first video network terminal, and the second streaming media server is responsible for the service of the video telephone of the second video network terminal.
In a specific implementation, the first and second video network terminals may be Set Top Boxes (STB), commonly referred to as set top boxes or set top boxes, which are devices that connect a television set to an external signal source, and convert compressed digital signals into television content for display on the television set.
Generally, the first video network terminal and the second video network terminal are both connectable to other devices, for example, the devices may be at least one camera and at least one microphone for collecting at least one video data and at least one audio data, and the devices may also be a television for playing the video data and the audio data.
It should be noted that, the first video networking terminal and the second video networking terminal are relatively speaking, in a certain service scenario, a certain video networking terminal may be used as the first video networking terminal to collect video data and audio data, and in other service scenarios, the video networking terminal may be used as the second video networking terminal to output video data and audio data for playing.
The first video network terminal (represented by information such as a user account number) generates a communication request for carrying out video telephone with the second video network terminal (represented by information such as the user account number) according to user operation, and sends the communication request to the first streaming media server.
Step 502, the first streaming media server configures a first virtual terminal number for the first video network terminal according to the communication request.
In the embodiment of the invention, the first virtual terminal number is a video networking number, and is dynamically distributed to the first video networking terminal when the video telephone service is carried out.
In one embodiment of the present invention, step 502 may include the following sub-steps:
and a substep S11, sending a first query request to the management platform according to the communication request.
And a substep S12, receiving a first query response returned by the management platform for the first query request.
And a substep S13, if the first query response indicates that the first video network terminal is bound with a virtual terminal number, setting the virtual terminal number bound with the first video network terminal as a first virtual terminal number.
And a substep S14, querying an idle virtual terminal number if the first query response indicates that the first video network terminal is not bound with a virtual terminal number.
Substep S15, configuring the idle virtual terminal number as a first virtual terminal number to the first video network terminal.
In the embodiment of the present invention, the video network further includes a management platform, and the management platform may be configured to manage the virtual terminal number.
In one case, the level of some users is higher, and in order to guarantee the use of the videophones of the users, virtual terminal numbers can be bound to the users and recorded in the management platform.
In another case, the management platform assigns available virtual terminal numbers to the streaming media servers and caches locally at the streaming media servers.
In a specific implementation, a first streaming media server generates a query request for a first video network terminal (represented by information such as a user account) and sends the query request to a management platform.
The management platform inquires whether the first video network terminal (represented by information such as a user account number) is bound with a virtual terminal number.
If yes, the virtual terminal number is returned to the first streaming media server, and the first streaming media server takes the virtual terminal number as a first virtual terminal number configured by the first video network terminal in the video telephone at this time.
If not, the first streaming media server is informed, the first streaming media server searches the idle virtual terminal number from the cache, if the idle virtual terminal number is found, the virtual terminal number is used as the first virtual terminal number configured by the first video network terminal in the video telephone at the time, the occupied virtual terminal number is marked in the cache, and if the idle virtual terminal number is not found, the first streaming media server is informed that no available video network number exists.
Step 503, the first streaming media server creates a first virtual terminal based on the first virtual terminal number.
In a specific implementation, in addition to the first virtual terminal number, the first streaming media server may allocate an idle resource (e.g., a Central Processing Unit (CPU) resource, a memory resource, a hard disk resource, etc.), virtualize a first virtual terminal supporting a video networking protocol, complete identity authentication and network access authentication of the video networking server, and maintain a heartbeat connection with the video networking server.
Step 504, the first streaming media server initiates a communication instruction of the video telephone to the second video network terminal through the first virtual terminal, and sends the communication instruction to the video network server.
In the first streaming media server, the first virtual terminal uses the first virtual terminal number as a source video networking number according to a video networking protocol (such as 8e01, 8785, and the like), generates a communication instruction of the video telephone, and sends the communication instruction to the video networking server, so as to instruct the second video networking terminal to perform a video telephone service.
In the embodiment of the invention, a first streaming media server receives a communication request of a first video network terminal for initiating a video telephone to a second video network terminal, configures a first virtual terminal number for the first video network terminal according to the communication request, creates a first virtual terminal based on the first virtual terminal number, initiates a communication instruction of the video telephone to the second video network terminal through the first virtual terminal, sends the communication instruction to the video network server, and cyclically utilizes the video network number as the virtual terminal number, and dynamically multiplexes to realize that a large amount of video telephone services can be carried out by configuring a small amount of video network numbers.
Referring to fig. 6, a flowchart illustrating steps of another video telephone communication method according to an embodiment of the present invention is shown, where the method may be applied to a video network, and the video network includes a video network server, a first streaming media server, a second streaming media server, and a first video network terminal and a second video network terminal, which may specifically include the following steps:
step 601, the second streaming media server receives a communication instruction sent by the video networking server, where the communication instruction is sent by the first virtual terminal to initiate the video telephone to the second video networking terminal.
In a specific implementation, the second streaming media server receives a communication instruction of initiating the video telephone to the second video network terminal by the first virtual terminal according to a downlink communication link configured to the second virtual terminal by the video network server.
In practical applications, the video network is a network with a centralized control function, and includes a master 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 to configure a table for a downlink communication link of a current service by notifying a switching device by the master control server, and then transmit a data packet based on the configured table.
Namely, the communication method in the video network includes:
and the master control server configures the 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 second virtual terminal) according to the downlink communication link.
In the embodiment of the present invention, configuring the downlink communication link of the current service includes: and informing the switching equipment related to the downlink communication link of the current service to allocate the 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 mentioned above, the video network includes an access network portion, in which the master server is a node server and the lower-level network devices include 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:
and a substep S21, the main control server obtains the 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 the downlink communication port information of the main control server and the access switch participating in the current service.
In the substep S22, 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; and sending a port configuration command to the corresponding access switch according to the downlink communication port information of the access switch.
In sub-step S23, 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 sub-step S31, the main control server obtains a service request protocol packet initiated by the target terminal and applying for the multicast communication service, where 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 includes a service number.
And a substep S32, the main control server extracts the access network address of the source terminal in a preset content-address mapping table according to the service number.
In the substep of S33, 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.
Step 602, the second streaming media server configures a second virtual terminal number for the second video network terminal according to the communication instruction.
In the embodiment of the invention, the second virtual terminal number is a video networking number, and is dynamically distributed to the second video networking terminal when the video telephone service is carried out.
In one embodiment of the present invention, step 602 may include the following sub-steps:
and a substep S41, sending a second query request to the management platform according to the communication instruction.
And a substep S42, receiving a second query response returned by the management platform for the second query request.
And a substep S43, if the second query response indicates that the second video network terminal is bound with a virtual terminal number, setting the virtual terminal number bound with the second video network terminal as a second virtual terminal number.
And a substep S44, querying an idle virtual terminal number if the second query response indicates that the second video network terminal is not bound with a virtual terminal number.
Substep S45, configuring the idle virtual terminal number as a second virtual terminal number to the second video network terminal.
In the embodiment of the present invention, the video network further includes a management platform, and the management platform may be configured to manage the virtual terminal number.
In one case, the level of some users is higher, and in order to guarantee the use of the videophones of the users, virtual terminal numbers can be bound to the users and recorded in the management platform.
In another case, the management platform assigns available virtual terminal numbers to the streaming media servers and caches locally at the streaming media servers.
In a specific implementation, the second streaming media server generates a query request for the second video network terminal (represented by information such as a user account number), and sends the query request to the management platform.
The management platform inquires whether the second video network terminal (represented by information such as a user account number) is bound with a virtual terminal number.
If yes, the virtual terminal number is returned to the second streaming media server, and the second streaming media server takes the virtual terminal number as a first virtual terminal number configured by the second video network terminal in the video telephone at this time.
If not, the second streaming media server is informed, the second streaming media server searches the idle virtual terminal number from the cache, if the idle virtual terminal number is found, the virtual terminal number is used as the second virtual terminal number configured in the video telephone and the second video network terminal at the time, the occupied virtual terminal number is marked in the cache, and if the idle virtual terminal number is not found, the second streaming media server is informed that no available video network number exists.
Step 603, the second streaming media server creates a second virtual terminal based on the second virtual terminal number.
In a specific implementation, in addition to the second virtual terminal number, the second streaming media server may allocate an idle resource (e.g., a Central Processing Unit (CPU) resource, a memory resource, a hard disk resource, etc.), virtualize a second virtual terminal supporting a video networking protocol, complete identity authentication and network access authentication of the video networking server, and maintain a heartbeat connection with the video networking server.
Referring to fig. 7, a flowchart illustrating steps of a communication method of a videophone according to another embodiment of the present invention is shown, where the method may be applied to a video network, and the video network includes a video network server, a first streaming media server, a second streaming media server, and a first video network terminal and a second video network terminal, which may specifically include the following steps:
and 701, the first streaming media server receives audio and video data which are sent by the video network server and collected by the second video network terminal through the first virtual terminal.
And step 702, the first streaming media server sends the audio and video data to the first video network terminal for playing.
In the service of the video telephone, a second video network terminal collects audio and video data and sends the audio and video data to a second streaming media server, and a second virtual terminal in the second streaming media server sends the audio and video data to the video network server according to a protocol of the video network.
And a first virtual terminal in the first streaming media server receives audio and video data acquired by a second video network terminal according to a downlink communication link configured for the first virtual terminal by the video network server, and transmits the audio and video data to the first video network terminal for playing.
In video networking, a data packet of video data may be encapsulated for transmission by the 2000 specification of the following video networking protocol:
Figure GDA0003147923810000201
in video networking, packets of audio data may be encapsulated for transmission by the 2001 specification of the video networking protocol:
Figure GDA0003147923810000202
Figure GDA0003147923810000211
and 703, the first streaming media server receives the audio and video data collected by the first video network terminal.
Step 704, the first streaming media server sends the audio and video data to the video networking server through the first virtual terminal.
In the service of the video telephone, a first video network terminal collects audio and video data and sends the audio and video data to a first streaming media server, and a first virtual terminal in the first streaming media server sends the audio and video data to the video network server according to a protocol of the video network so as to forward the audio and video data to a second video network terminal for playing.
Step 705, when the videophone is finished, the first streaming media server cancels the first virtual terminal, and releases the first virtual terminal number.
If the video telephone is finished, the first streaming media server logs out a first virtual terminal generated for the first video networking terminal, releases the resource and releases the first virtual terminal number at the same time.
In one case, if the first virtual terminal number is a virtual terminal number bound to the first video network terminal (represented by information such as a user account), the record of the first virtual terminal number may be deleted.
In another case, if the first virtual terminal number is a virtual terminal number temporarily assigned to the first video network terminal (represented by information such as a user account), the record is deleted, and the virtual terminal number is marked as free in the cache.
Referring to fig. 8, a flowchart illustrating steps of a communication method of a videophone according to another embodiment of the present invention is shown, where the method may be applied to a video network, and the video network includes a video network server, a first streaming media server, a second streaming media server, and a first video network terminal and a second video network terminal, and specifically includes the following steps:
step 801, a second streaming media server receives audio and video data which are sent by the video network server and collected by the first video network terminal through the second virtual terminal.
And step 802, the second streaming media server sends the audio and video data to the second video network terminal for playing.
In the service of the video telephone, a first video network terminal collects audio and video data and sends the audio and video data to a first streaming media server, and a first virtual terminal in the first streaming media server sends the audio and video data to the video network server according to a protocol of the video network.
And a second virtual terminal in the second streaming media server receives audio and video data acquired by the first video network terminal according to a downlink communication link configured to the second virtual terminal by the video network server, and transmits the audio and video data to the second video network terminal for playing.
And 803, the second streaming media server receives the audio and video data collected by the second video network terminal.
And step 804, the second streaming media server sends the audio and video data to the video networking server through the second virtual terminal.
In the service of the video telephone, a second video network terminal collects audio and video data and sends the audio and video data to a second streaming media server, and a second virtual terminal in the second streaming media server sends the audio and video data to the video network server according to a protocol of the video network so as to forward the audio and video data to the first video network terminal for playing.
And step 805, when the video telephone is finished, the second streaming media server cancels the second virtual terminal, and releases the number of the second virtual terminal.
And if the video telephone is finished, the second streaming media server logs out a second virtual terminal generated for the second video networking terminal, releases the resource and releases the number of the second virtual terminal.
In one case, if the second virtual terminal number is a virtual terminal number bound to the second video network terminal (represented by information such as a user account), the record thereof may be deleted.
In another case, if the second virtual terminal number is a virtual terminal number temporarily assigned by the second video network terminal (represented by information such as a user account), the record is deleted, and the virtual terminal number is marked as free in the cache.
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. 9, a block diagram of a communication system of a video telephone according to an embodiment of the present invention is shown, where the system is in a video network, and the video network includes a video network server, a first streaming media server, a second streaming media server, a first video network terminal, and a second video network terminal;
the first streaming media server comprises:
a communication request receiving module 901, configured to receive a communication request of a video telephone initiated by the first video network terminal to the second video network terminal;
a first virtual terminal number configuration module 902, configured to configure a first virtual terminal number for the first video network terminal according to the communication request;
a first virtual terminal creating module 903, configured to create a first virtual terminal based on the first virtual terminal number;
a communication instruction sending module 904, configured to initiate a communication instruction of a video telephone to the second video network terminal through the first virtual terminal, and send the communication instruction to the video network server.
In one embodiment of the invention, the video network further comprises a management platform;
the first virtual terminal number configuration module 903 includes:
the first query request sending submodule is used for sending a first query request to the management platform according to the communication request;
the first query response receiving submodule is used for receiving a first query response returned by the management platform aiming at the first query request;
the first number setting submodule is used for setting the virtual terminal number bound by the first video network terminal as a first virtual terminal number if the first query response indicates that the first video network terminal is bound with the virtual terminal number;
the first number query submodule is used for querying an idle virtual terminal number if the first query response indicates that the first video network terminal is not bound with the virtual terminal number;
and the first number configuration submodule is used for configuring the idle virtual terminal number as a first virtual terminal number to the first video network terminal.
In one embodiment of the present invention, the second streaming server includes:
the communication instruction receiving module is used for receiving a communication instruction which is sent by the video networking server and used for the first virtual terminal to initiate the video telephone to the second video networking terminal;
the second virtual terminal number configuration module is used for configuring a second virtual terminal number for the second video network terminal according to the communication instruction;
and the second virtual terminal creating module is used for creating a second virtual terminal based on the second virtual terminal number.
In one embodiment of the invention, the video network further comprises a management platform;
the second virtual terminal number configuration module comprises:
the second query request sending submodule is used for sending a second query request to the management platform according to the communication instruction;
the second query response receiving submodule is used for receiving a second query response returned by the management platform aiming at the second query request;
the second number setting submodule is used for setting the virtual terminal number bound by the second video network terminal as a second virtual terminal number if the second query response indicates that the second video network terminal is bound with the virtual terminal number;
the second number query submodule is used for querying an idle virtual terminal number if the second query response indicates that the second video network terminal is not bound with the virtual terminal number;
and the second number configuration submodule is used for configuring the idle virtual terminal number as a second virtual terminal number to the second video network terminal.
In one embodiment of the present invention, the first streaming media server further comprises:
the first audio and video data receiving module is used for receiving the audio and video data which are sent by the video network server and collected by the second video network terminal through the first virtual terminal;
the first audio and video data sending module is used for sending the audio and video data to the first video network terminal for playing;
the second audio and video data receiving module is used for receiving the audio and video data collected by the first video network terminal;
and the second audio and video data sending module is used for sending the audio and video data to the video networking server through the first virtual terminal.
In an embodiment of the present invention, the second streaming server further includes:
the third audio and video data receiving module is used for receiving the audio and video data which are sent by the video network server and collected by the first video network terminal through the second virtual terminal;
the third audio and video data sending module is used for sending the audio and video data to the second video network terminal for playing;
the fourth audio and video data receiving module is used for receiving the audio and video data collected by the second video network terminal;
and the fourth audio and video data sending module is used for sending the audio and video data to the video networking server through the second virtual terminal.
In one embodiment of the present invention, the first streaming media server further comprises:
and the first end processing module is used for canceling the first virtual terminal and releasing the first virtual terminal number when the video telephone is ended.
In an embodiment of the present invention, the second streaming server further includes:
and the second ending processing module is used for canceling the second virtual terminal and releasing the number of the second virtual terminal when the video telephone is ended.
For the system 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.
In the embodiment of the invention, a first streaming media server receives a communication request of a first video network terminal for initiating a video telephone to a second video network terminal, configures a first virtual terminal number for the first video network terminal according to the communication request, creates a first virtual terminal based on the first virtual terminal number, initiates a communication instruction of the video telephone to the second video network terminal through the first virtual terminal, sends the communication instruction to the video network server, and cyclically utilizes the video network number as the virtual terminal number, and dynamically multiplexes to realize that a large amount of video telephone services can be carried out by configuring a small amount of video network numbers.
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 above detailed description is provided for the communication method and system of the video telephone provided by the present invention, and the principle and the implementation of the present invention are explained by applying a specific example, and the description of the above embodiment is only used to help understanding the method and the core idea of the present 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 (9)

1. A communication method of a video telephone is applied to a video network, wherein the video network comprises a video network server, a first streaming media server, a second streaming media server, a first video network terminal and a second video network terminal, and the method comprises the following steps:
the first streaming media server receives a communication request of a video telephone initiated by the first video networking terminal to the second video networking terminal;
the first streaming media server configures a first virtual terminal number for the first video network terminal according to the communication request; the first virtual terminal number is a reusable video networking number;
the first streaming media server creates a first virtual terminal based on the first virtual terminal number;
the first streaming media server initiates a communication instruction of the video telephone to the second video network terminal through the first virtual terminal and sends the communication instruction to the video network server;
the second streaming media server receives a communication instruction sent by the video networking server and used for the first virtual terminal to initiate the video telephone to the second video networking terminal;
the second streaming media server configures a second virtual terminal number for the second video network terminal according to the communication instruction;
the second streaming media server creates a second virtual terminal based on the second virtual terminal number;
the second streaming media server receives audio and video data which are sent by the video network server and collected by the first video network terminal through the second virtual terminal;
and the second streaming media server sends the audio and video data to the second video network terminal for playing.
2. The method of claim 1, wherein the video network further comprises a management platform;
the first streaming media server configures a first virtual terminal number for the first video network terminal according to the communication request, and the method comprises the following steps:
sending a first query request to the management platform according to the communication request;
receiving a first query response returned by the management platform for the first query request;
if the first query response indicates that the first video network terminal is bound with a virtual terminal number, setting the virtual terminal number bound with the first video network terminal as a first virtual terminal number;
if the first query response is that the first video network terminal is not bound with the virtual terminal number, querying an idle virtual terminal number;
and configuring the idle virtual terminal number as a first virtual terminal number to the first video network terminal.
3. The method of claim 1, wherein the video network further comprises a management platform;
the second streaming media server configures a second virtual terminal number for the second video network terminal according to the communication instruction, and the method includes:
sending a second query request to the management platform according to the communication instruction;
receiving a second query response returned by the management platform for the second query request;
if the second query response indicates that the second video network terminal is bound with a virtual terminal number, setting the virtual terminal number bound with the second video network terminal as a second virtual terminal number;
if the second query response is that the second video network terminal is not bound with the virtual terminal number, querying an idle virtual terminal number;
and configuring the idle virtual terminal number as a second virtual terminal number to the second video network terminal.
4. The method of claim 1, further comprising:
the first streaming media server receives audio and video data which are sent by the video network server and collected by the second video network terminal through the first virtual terminal;
the first streaming media server sends the audio and video data to the first video network terminal for playing;
the first streaming media server receives audio and video data collected by the first video network terminal;
and the first streaming media server sends the audio and video data to the video networking server through the first virtual terminal.
5. The method of claim 1, further comprising:
the second streaming media server receives audio and video data collected by the second video network terminal;
and the second streaming media server sends the audio and video data to the video networking server through the second virtual terminal.
6. The method of claim 1 or 4, further comprising:
and when the video telephone is finished, the first streaming media server cancels the first virtual terminal and releases the first virtual terminal number.
7. The method of claim 3 or 5, further comprising:
and when the video telephone is finished, the second streaming media server cancels the second virtual terminal and releases the number of the second virtual terminal.
8. A communication system of a video telephone is characterized in that the communication system is applied to a video network, wherein the video network comprises a video network server, a first streaming media server, a second streaming media server, a first video network terminal and a second video network terminal;
the first streaming media server comprises:
a communication request receiving module, configured to receive a communication request of a video telephone initiated by the first video networking terminal to the second video networking terminal;
the first virtual terminal number configuration module is used for configuring a first virtual terminal number for the first video network terminal according to the communication request; the first virtual terminal number is a reusable video networking number;
the first virtual terminal creating module is used for creating a first virtual terminal based on the first virtual terminal number;
the communication instruction sending module is used for initiating a communication instruction of the video telephone to the second video network terminal through the first virtual terminal and sending the communication instruction to the video network server;
the second streaming server includes:
the communication instruction receiving module is used for receiving a communication instruction which is sent by the video networking server and used for the first virtual terminal to initiate the video telephone to the second video networking terminal;
the second virtual terminal number configuration module is used for configuring a second virtual terminal number for the second video network terminal according to the communication instruction;
the second virtual terminal creating module is used for creating a second virtual terminal based on the second virtual terminal number;
the third audio and video data receiving module is used for receiving the audio and video data which are sent by the video network server and collected by the first video network terminal through the second virtual terminal;
and the third audio and video data sending module is used for sending the audio and video data to the second video network terminal for playing.
9. The system of claim 8, wherein the video network further comprises a management platform;
the first virtual terminal number configuration module comprises:
the first query request sending submodule is used for sending a first query request to the management platform according to the communication request;
the first query response receiving submodule is used for receiving a first query response returned by the management platform aiming at the first query request;
the first number setting submodule is used for setting the virtual terminal number bound by the first video network terminal as a first virtual terminal number if the first query response indicates that the first video network terminal is bound with the virtual terminal number;
the first number query submodule is used for querying an idle virtual terminal number if the first query response indicates that the first video network terminal is not bound with the virtual terminal number;
and the first number configuration submodule is used for configuring the idle virtual terminal number as a first virtual terminal number to the first video network terminal.
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