CN110401807A - A communication method and device for a videophone system - Google Patents

Abstract

Embodiments of the present invention provide a communication method and device for a videophone system. The videophone system includes an Internet terminal, a video network terminal, and an xmcu server. Telephone request message; establish the first communication channel between the virtual terminal corresponding to the sub-number and the Internet terminal; convert the videophone request message based on the h323 protocol into a videophone request message based on the 64-bit video networking protocol; The video networking terminal corresponding to the networking terminal number sends a videophone request message based on the 64-bit video networking protocol; the receiving video networking terminal responds to the videophone request message based on the 64-bit video networking protocol, and returns a video telephony request message based on the 64-bit video networking protocol. The videophone response message of the sub-number is used to establish a second communication channel between the virtual terminal corresponding to the sub-number and the video network terminal. In this way, available virtual terminal number resources are expanded, and virtual terminal number resources are prevented from being exhausted.

Description

A communication method and device for a videophone system

technical field

The invention relates to the technical field of video networking, in particular to a communication method for a videophone system and a communication device for a videophone system.

Background technique

The Internet of Vision adopts VisionVera real-time high-definition video exchange technology to realize the real-time transmission of high-definition video on the entire network that cannot be realized by the Internet at present. Dozens of video, voice, picture, text, communication, data and other services such as mail and information release are all integrated into one system platform, and real-time interconnection of high-definition quality video communication is realized through a variety of terminal devices.

In the video network, a video network gateway is deployed, such as the video conference gateway xmcu, which is responsible for the integration of the video network and the Internet, ensuring that the video network and the Internet can be interconnected and interoperable, and video conferences and other services are performed.

However, now the xmcu server only supports 16-bit video networking protocol, and with the wide application of video networking, 16-bit video networking is facing the exhaustion of virtual terminal resources of video networking, so the company launched a 64-bit video networking protocol for accessing 64 In the bit vision networking, xmcu also needs to support the 64 bit vision networking protocol, in order to facilitate the large-scale use of xmcu.

Contents of the invention

In view of the above problems, embodiments of the present invention are proposed to provide a communication method for a videophone system that overcomes the above problems or at least partially solves the above problems, and a corresponding communication device for a videophone system.

In order to solve the above problems, the embodiment of the present invention discloses a communication method of a videophone system, the videophone system includes an Internet terminal, a video network terminal and an xmcu server, and the method includes:

The xmcu server receives the videophone request message based on the h323 protocol sent by the Internet terminal; the videophone request message based on the h323 protocol carries the video network terminal number and sub-number;

The xmcu server establishes a first communication channel between the virtual terminal corresponding to the sub-number and the Internet terminal according to the sub-number;

The xmcu server converts the videophone request message based on the h323 protocol into a videophone request message based on the 64-bit video networking protocol;

The xmcu server sends the videophone request message based on the 64-bit video networking protocol to the video networking terminal corresponding to the video networking terminal number;

The xmcu server receives the video telephony response message based on the 64-bit video networking protocol in response to the video telephony request message based on the 64-bit video networking protocol from the video networking terminal, and establishes the virtual terminal corresponding to the sub-number and the The second communication channel between the Internet-connected terminals is described.

Optionally, the xmcu server establishes the first communication channel between the virtual terminal corresponding to the sub-number and the Internet terminal according to the sub-number, including:

The xmcu server searches for an idle virtual terminal corresponding to the subnumber in a preset configuration file;

The xmcu server establishes a first communication channel between an idle virtual terminal corresponding to the subnumber and the Internet terminal.

Optionally, after the xmcu server receives the video telephony request message based on the 64-bit video networking protocol in response to the video telephony request message based on the 64-bit video networking protocol, the xmcu server further includes:

The xmcu server converts the videophone response message based on the 64-bit video networking protocol into a videophone response message based on the h323 protocol;

The xmcu server sends the videophone response message based on the h323 protocol to the Internet terminal.

Optionally, the method also includes:

The xmcu server receives the first audio and video data in the 64-bit video networking format sent by the video networking terminal through the second communication channel;

The xmcu server converts the first audio and video data of the 64-bit visual networking format into the first audio and video data of the RTP format;

The xmcu server sends the first audio and video data in RTP format to the Internet terminal through the first communication channel.

Optionally, the method also includes:

The Internet terminal decodes the first audio and video data in RTP format, and displays the decoded first audio and video data.

Optionally, the method also includes:

The xmcu server receives the second audio and video data in RTP format sent by the Internet terminal through the first communication channel;

The xmcu server converts the second audio and video data of the RTP format into the second audio and video data of the 64-bit video networking format;

The xmcu server sends the second audio and video data in the 64-bit Internet of Vision format to the Internet of Vision terminal through the second communication channel.

Optionally, the method also includes:

The Internet-of-Vision terminal decodes the second audio-video data in the 64-bit Internet-of-Vision format, and displays the decoded second audio-video data.

The embodiment of the present invention also discloses a communication device for a videophone system. The videophone system includes an Internet terminal, a video network terminal and an xmcu server. The device includes:

The first request sending module is used for the xmcu server to receive the videophone request message based on the h323 protocol sent by the Internet terminal; the videophone request message based on the h323 protocol carries the video network terminal number and sub-number;

The first communication channel establishment module is used for the xmcu server to establish a first communication channel between the virtual terminal corresponding to the sub-number and the Internet terminal according to the sub-number;

The request conversion module is used for the xmcu server to convert the videophone request message based on the h323 protocol into a videophone request message based on the 64-bit video networking protocol;

The second request sending module is used for the xmcu server to send the videophone request message based on the 64-bit video networking protocol to the video networking terminal corresponding to the video networking terminal number;

The second communication channel establishment module is used for the xmcu server to receive the videophone response message based on the 64-bit video networking protocol returned by the video networking terminal in response to the video telephony request message based on the 64-bit video networking protocol, and establish the video telephony response message based on the 64-bit video networking protocol The second communication channel between the virtual terminal corresponding to the sub-number and the Internet-of-Vision terminal.

Optionally, the first communication channel establishment module includes:

A search submodule is used for the xmcu server to search for an idle virtual terminal corresponding to the subnumber in a preset configuration file;

The first communication channel establishment sub-module is used for the xmcu server to establish the first communication channel between the idle virtual terminal corresponding to the sub-number and the Internet terminal.

Optionally, the device also includes:

Response conversion module, for the xmcu server to convert the videophone response message based on the 64-bit video networking protocol into a videophone response message based on the h323 protocol;

The answer sending module is used for the xmcu server to send the videophone answer message based on the h323 protocol to the Internet terminal.

Optionally, the device also includes:

The first audio and video data receiving module is used for the xmcu server to receive the first audio and video data in the 64-bit video networking format sent by the video networking terminal through the second communication channel;

The first audio and video data conversion module is used for the xmcu server to convert the first audio and video data of the 64-bit video networking format into the first audio and video data of the RTP format;

The first audio and video data sending module is used for the xmcu server to send the first audio and video data in RTP format to the Internet terminal through the first communication channel.

Optionally, the device also includes:

The first audio and video data display module is used for the Internet terminal to decode the first audio and video data in RTP format, and display the decoded first audio and video data.

Optionally, the device also includes:

The second audio and video data receiving module is used for the xmcu server to receive the second audio and video data in RTP format sent by the Internet terminal through the first communication channel;

The second audio and video data conversion module is used for the xmcu server to convert the second audio and video data in the RTP format to the second audio and video data in the 64-bit video networking format;

The second audio and video data sending module is used for the xmcu server to send the second audio and video data in the 64-bit video networking format to the video networking terminal through the second communication channel.

Optionally, the device also includes:

The second audio-video data display module is used for the Internet-of-Vision terminal to decode the second audio-video data in the 64-bit Internet-of-Vision format, and display the decoded second audio-video data.

The embodiment of the invention also discloses an electronic device, including:

one or more processors; and

One or more machine-readable media having instructions stored thereon, when executed by the one or more processors, causes the electronic device to perform the steps of one or more methods described in the embodiments of the present invention .

The embodiment of the present invention also discloses a computer-readable storage medium, the computer program stored in it causes the processor to execute the steps of the method described in the embodiment of the present invention.

Embodiments of the present invention include the following advantages:

In the embodiment of the present invention, the xmcu server receives the videophone request message based on the h323 protocol sent by the Internet terminal, and establishes the first communication channel between the virtual terminal corresponding to the sub-number and the Internet terminal, and sends the videophone request message based on the h323 protocol. The telephone request message is converted into a videophone request message based on the 64-bit video networking protocol, and the video telephony request based on the 64-bit video networking protocol is sent to the video networking terminal corresponding to the video networking terminal number, and the video telephony request message based on the 64-bit video networking protocol is sent. protocol videophone request message, receive the videophone request message based on the 64-bit videonetwork protocol from the videophone terminal, return the videophone response message based on the 64-bit videonetwork protocol, and establish the virtual terminal corresponding to the sub-number and the videophone request message A second communication channel between networked terminals. The 64-bit video networking protocol is supported by the xmcu server, so that when performing video networking services, the sub-numbers of the virtual terminal number can be consumed for data transmission, thereby expanding the available virtual terminal number resources and avoiding the exhaustion of virtual terminal number resources.

Description of drawings

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

Fig. 2 is a schematic diagram of the hardware structure of a node server of the present invention;

Fig. 3 is a schematic diagram of the hardware structure of an access switch of the present invention;

Fig. 4 is the hardware structural representation of a kind of Ethernet protocol conversion gateway of the present invention;

FIG. 5 is a flow chart of the steps of an embodiment of a communication method for a videophone system according to an embodiment of the present invention;

Fig. 6 is a flow chart of a communication method of a videophone system of the present invention;

Fig. 7 is a structural block diagram of an embodiment of a communication device of a videophone system according to an embodiment of the present invention.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The Internet of Vision is an important milestone in the development of the network. It is a real-time network that can realize real-time transmission of high-definition video, and push many Internet applications to high-definition video, high-definition face-to-face.

The Internet of View adopts real-time high-definition video exchange technology, which can provide required services on one network platform, such as high-definition video conferencing, video surveillance, intelligent monitoring and analysis, emergency command, digital broadcast TV, time-lapse TV, online teaching, live broadcast , VOD on demand, TV mail, personalized recording (PVR), intranet (self-managed) channel, intelligent video broadcast control, information release and other dozens of video, voice, picture, text, communication, data and other services are all integrated in one System platform, realize high-definition quality video playback through TV or computer.

In order to enable those skilled in the art to better understand the embodiments of the present invention, the Internet of Things is introduced as follows:

Some of the technologies applied in the Internet of Things are as follows:

Network Technology

The network technology innovation of the Internet of View has improved the traditional Ethernet (Ethernet) to face the potentially huge first video traffic on the network. Different from pure network packet switching (Packet Switching) or network circuit switching (Circuit Switching), video networking technology uses Packet Switching to meet Streaming requirements. The Internet of Vision technology has the flexibility, simplicity and low price of packet switching, and at the same time has the quality and security guarantee of circuit switching, realizing the seamless connection of switched virtual circuits and data formats throughout the network.

Switching Technology

Video networking adopts the two advantages of Ethernet asynchronous and packet switching, eliminates the defects of Ethernet under the premise of full compatibility, has end-to-end seamless connection of the whole network, directly connects to user terminals, and directly carries IP data packets. User data does not require any format conversion within the entire network. Video networking is a more advanced form of Ethernet. It is a real-time switching platform, which can realize the real-time transmission of large-scale high-definition video in the whole network that cannot be realized by the Internet at present, and push many network video applications to high-definition and unification.

Server Technology

The server technology on the Internet of View and unified video platform is different from the server in the traditional sense. Its streaming media transmission is based on connection-oriented, and its data processing capability has nothing to do with traffic and communication time. A single network layer can contain information command and data transmission. For voice and video services, the complexity of video streaming and unified video platform streaming media processing is much simpler than data processing, and the efficiency is greatly improved by more than 100 times compared with traditional servers.

Storage Technology

The ultra-high-speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the super-large capacity and super-large-flow media content, and maps the program information in the server command to the specific hard disk space, and the media content no longer passes through the server. It is delivered directly to the user terminal in an instant, and the user generally waits for less than 0.2 seconds. The optimized sector distribution greatly reduces the mechanical movement of the hard disk head seeking. The resource consumption is only 20% of the IP Internet of the same level, but the concurrent traffic generated is 3 times larger than that of the traditional hard disk array, and the overall efficiency is increased by more than 10 times.

Network Security Technology

The structural design of the Internet of View completely eradicates the network security problems that plague the Internet through the individual licensing system for each service, complete isolation of equipment and user data, and generally does not require anti-virus programs and firewalls, preventing hackers and virus attacks , to provide users with a structured worry-free security network.

Service Innovation Technology

The unified video platform integrates business and transmission together, whether it is a single user, a private network user or the sum of a network, it is just an automatic connection. User terminals, set-top boxes or PCs are directly connected to the unified video platform to obtain rich and colorful multimedia video services in various forms. The unified video platform adopts the "recipe-style" table matching mode to replace the traditional complex application programming. It can realize complex applications with very little code and realize "unlimited" new business innovations.

The networking of the Internet of Things is as follows:

Vision networking is a network structure with centralized control. The network can be a tree network, star network, ring network, etc., but on this basis, a centralized control node is required in the network to control the entire network.

As shown in Figure 1, the Internet of Things is divided into two parts: the access network and the metropolitan area network.

The equipment in the access network part can be mainly divided into three categories: node server, access switch, terminal (including various set-top boxes, encoding boards, storage, etc.). The node server is connected with the access switch, and the access switch can be connected with multiple terminals and can be connected with Ethernet.

Wherein, the node server is a node with centralized control function in the access network, which can control the access switches and terminals. The node server can be directly connected to the access switch, and can also be directly connected to the terminal.

Similarly, the devices in the MAN part can also be divided into three categories: MAN servers, node switches, and node servers. The metro server is connected to the node switch, and the node switch can be connected to multiple node servers.

Wherein, the node server is the node server of the access network part, that is, the node server belongs to both the access network part and the metropolitan area network part.

The metropolitan area server is a node with a centralized control function in the metropolitan area network, which can control node switches and node servers. The metro server can be directly connected to the node switch, or directly connected to the node server.

It can be seen that the entire Vision Network is a layered centralized control network structure, while the network controlled by the node server and the metro server can be in various structures such as tree, star, and ring.

Vividly speaking, the access network part can form a unified video platform (the part in the dotted circle), and multiple unified video platforms can form a video network; each unified video platform can be interconnected through the metropolitan area and the wide area video network.

Classification of Internet of Things devices

1.1 The equipment in the video network of the embodiment of the present invention can be mainly divided into three categories: servers, switches (including Ethernet protocol conversion gateways), terminals (including various set-top boxes, encoding boards, memory, etc.). As a whole, the Internet of Things can be divided into a metropolitan area network (or a national network, a global network, etc.) and an access network.

1.2 The equipment in the access network can be mainly divided into three categories: node server, access switch (including Ethernet protocol conversion gateway), terminal (including various set-top boxes, encoding boards, storage, etc.).

The specific hardware structure of each access network device is as follows:

Node server:

As shown in Figure 2, it mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;

Wherein, network interface module 201, the bag that CPU module 203, disk array module 204 come in all enters switching engine module 202; The guiding information of packet stores this packet into the queue of corresponding packet cache 206; If the queue of packet cache 206 is close to full, then discards; Switching engine module 202 polls all packet cache queues, if satisfying following conditions forwarding: 1) The sending buffer of the port is not full; 2) The queue packet counter is greater than zero. Disk array module 204 mainly realizes the control to hard disk, comprises operations such as the initialization of hard disk, read and write; (including downlink protocol packet address table, uplink protocol packet address table, and data packet address table), and configuration of the disk array module 204 .

Access switch:

As shown in Figure 3, mainly comprise network interface module (downlink network interface module 301, uplink network interface module 302), switching engine module 303 and CPU module 304;

Wherein, the packet (upstream data) that the downstream network interface module 301 comes in enters the packet detection module 305; Whether the destination address (DA), source address (SA), data packet type and packet length of the packet detection module 305 detection packet meet the requirements, if Meet, then distribute corresponding flow identifier (stream-id), and enter switching engine module 303, otherwise discard; The packet (downstream data) that upstream network interface module 302 comes in enters switching engine module 303; The data packet that CPU module 304 comes in Enter the switching engine module 303; the switching engine module 303 carries out the operation of checking the address table 306 to the incoming packet, thereby obtains the guide information of the packet; if the packet entering the switching engine module 303 is going from the downstream network interface to the upstream network interface, then in combination Flow identifier (stream-id) stores this packet into the queue of corresponding packet cache 307; If the queue of this packet cache 307 is close to full, then discards; If the packet that enters switching engine module 303 is not downlink network interface, goes up If the data packet goes to the network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the direction 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 can include two situations:

If the queue goes from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port sending buffer is not full; 2) the queue packet counter is greater than zero; 3) the token generated by the code rate control module is obtained ;

If the queue does not go from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the sending buffer of the port is not full; 2) the packet counter of the queue is greater than zero.

The code rate control module 308 is configured by the CPU module 304 to generate tokens for all packet buffer queues going from the downlink network interface to the uplink network interface within a programmable interval to control the uplink forwarding code rate.

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 Figure 4, it mainly includes network interface modules (downlink network interface module 401, uplink network interface module 402), switching engine module 403, CPU module 404, packet detection module 405, code rate control module 408, address table 406, packet Buffer 407 and MAC addition module 409 , MAC deletion module 410 .

Wherein, the data packet coming in from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects the Ethernet MAC DA, Ethernet MAC SA, Ethernet length or frame type, visual network destination address DA, visual network Source address SA, depending on whether the network data packet type and packet length meet the requirements, if so, assign a corresponding stream identifier (stream-id); then, subtract MAC DA, MAC SA, length or frame type from the MAC deletion module 410 (2byte), and enter the corresponding receiving buffer, otherwise discard;

The downlink network interface module 401 detects the sending buffer of the port, if there is a packet, the Ethernet MAC DA of the corresponding terminal is known according to the visual network destination address DA of the packet, and the Ethernet MAC DA of the terminal, the MACSA of the Ethernet protocol conversion gateway, and the MACSA of the Ethernet protocol conversion gateway are added. Ethernet length or frame type, and send.

The functions of other modules in the Ethernet protocol conversion gateway are similar to those of the access switch.

terminal:

It mainly includes a network interface module, a business processing module and a CPU module; for example, a set-top box mainly includes a network interface module, an video and audio codec engine module, and a CPU module; an encoding board mainly includes a network interface module, an video and audio encoding engine module, and a CPU module; It mainly includes network interface module, CPU module and disk array module.

1.3 The equipment of the metropolitan area network can be mainly divided into two categories: node server, node switch, and metropolitan area server. Among them, the node switch mainly includes a network interface module, a switching engine module and a CPU module; the metro server mainly includes a network interface module, a switching engine module and a CPU module.

2. Definition of Internet of Vision data packets

2.1 Definition of access network data packet

The data packet of the access network mainly includes the following parts: destination address (DA), source address (SA), reserved bytes, payload (PDU), and CRC.

As shown in the table below, the data packets of the access network mainly include the following parts:

DA SA Reserved Payload CRC

in:

The destination address (DA) consists of 8 bytes (byte), the first byte indicates the type of data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are up to 256 possibilities, The second byte to the sixth byte is the address of the metropolitan area network, and the seventh and eighth bytes are the address of the access network;

The source address (SA) is also composed of 8 bytes (byte), and the definition is the same as that of the destination address (DA);

Reserved bytes consist of 2 bytes;

The payload part has different lengths according to different datagram types. If it is a variety of protocol packets, it is 64 bytes. If it is a single multicast data packet, it is 32+1024=1056 bytes. Of course, it is not limited to Above 2 types;

CRC consists of 4 bytes, and its calculation method follows the standard Ethernet CRC algorithm.

2.2 MAN packet definition

The topology of the metropolitan area network is a graph. There may be two or even more than two types of connections between two devices, that is, there may be more than 2 connections between node switches and node servers, node switches and node switches, and node switches and node servers. kind of connection. However, the MAN address of the MAN device is unique. In order to accurately describe the connection relationship between MAN devices, a parameter: label is introduced in the embodiment of the present invention to uniquely describe a MAN device.

The definition of labels in this manual is similar to the definition of labels in MPLS (Multi-Protocol Label Switch, Multi-Protocol Label Switching). Assuming that there are two connections between device A and device B, then the data packets from device A to device B have 2 labels, the packet from device B to device A also has 2 labels. The label is divided into an incoming label and an outgoing label. Assuming that the label (incoming label) of the data packet entering device A is 0x0000, the label (outgoing label) of the data packet when it leaves device A may become 0x0001. The network access process of the metropolitan area network is a network access process under centralized control, which means that the address allocation and label allocation of the metropolitan area network are all dominated by the metropolitan area server, and the node switches and node servers are all passively executed. Different from MPLS label allocation, MPLS label allocation is the result of mutual negotiation between switches and servers.

As shown in the table below, the data packet of the MAN mainly includes the following parts:

DA SA Reserved Label Payload CRC

That is, destination address (DA), source address (SA), reserved byte (Reserved), label, payload (PDU), and CRC. Among them, the format of the label can refer to the following definition: the label is 32bit, of which the high 16bit is reserved, and only the low 16bit is used, and its position is between the reserved byte of the data packet and the payload.

Referring to FIG. 5 , it shows a flow chart of the steps of a communication method embodiment of a videophone system according to an embodiment of the present invention. The videophone system includes an Internet terminal, a video network terminal and an xmcu server, which may specifically include the following step:

Step 501, the xmcu server receives the videophone request message based on the h323 protocol sent by the Internet terminal; the videophone request message based on the h323 protocol carries the video network terminal number and sub-number;

The Internet terminal may be a terminal supporting h323 (audio and video transmission protocol), a terminal supporting SIP (Session Initiation Protocol, session initiation protocol), and the like.

The Internet of Vision terminal can be a device such as a set-top box (SetTopBox, STB), which can be connected to a camera and a microphone for collecting media data such as video data and audio data, and can also be connected to a TV for playing media data such as video data and audio data. A video network terminal may have a video network terminal number, which is a unique identification code of a video network terminal. The video network terminal number can be composed of 5 characters, for example, the video network terminal number can be 11135 and other characters.

The xmcu server can also be called the video conference gateway server. The xmcu server is responsible for the docking and integration of the video conference and the Internet conference to ensure that the video conference and the Internet conference can be interconnected. Specifically, the mutual transmission of audio and video data is realized by connecting the conference terminal equipment in the Internet of View and the third-party video conference terminal (Internet terminal) to realize video conference interaction, which involves the conversion and transmission of the protocol layer and audio and video protocols. The xmcu server can have an IP address, and other terminals (internet terminals and Internet-of-view terminals) can address the xmcu server through the IP address and transmit information to the xmcu server.

When the xmcu server supports Internet terminals and Internet-of-Vision terminals to carry out videophone services or conference services, it needs to consume a virtual terminal number of Internet-of-Vision and bind the virtual terminal number with Internet terminals and Internet-of-Vision terminals to establish Communication channel between networked endpoints. In the 64-bit video network protocol, the virtual terminal number of the video network can include sub-numbers, and the sub-numbers can correspond to a virtual terminal. Each virtual terminal number can contain at least several hundred sub-numbers, thereby greatly expanding the number of virtual terminal numbers. To avoid virtual terminal number exhaustion.

The virtual terminal is to instantiate a video network terminal in the xmcu server. It has all the functions of a video network terminal and can participate in video conferences as a video network terminal.

In the embodiment of the present invention, when the Internet terminal needs to perform the videophone service, it can send a videophone request message based on the h323 protocol to the xmcu server, requesting to watch the audio and video data of the Internet-connected terminal. The xmcu server can receive the videophone request message based on the h323 protocol sent by the Internet terminal.

Wherein, the videophone request message based on the h323 protocol can carry the IP address of the xmcu server, the video network terminal number and sub-number. The sub-number is the corresponding sub-number under the virtual terminal number. The videophone request message based on h323 protocol can be transmitted in Ethernet.

Step 502, the xmcu server establishes a first communication channel between the virtual terminal corresponding to the sub-number and the Internet terminal according to the sub-number;

After the xmcu server receives the videophone request message based on the h323 protocol, it can extract the subnumber in the videophone request message based on the h323 protocol, and establish the first communication channel between the virtual terminal corresponding to the subnumber and the Internet terminal .

Specifically, the first communication channel between the virtual terminal corresponding to the sub-number and the Internet terminal can be established by establishing a binding relationship between the sub-number and the Internet terminal.

In a preferred embodiment of the present invention, the step 502 may include the following sub-steps:

The xmcu server searches for an idle virtual terminal corresponding to the subnumber in a preset configuration file; the xmcu server establishes a first connection between the idle virtual terminal corresponding to the subnumber and the Internet terminal communication channel.

Wherein, the preset configuration file is a file preset in the xmcu server, which stores the use status of the virtual terminal number and its sub-numbers. When the sub-number has been used, its use state is: occupied state; when the sub-number is not used, its use state is: idle state.

The subnumber is the subnumber carried in the videophone request message based on the h323 protocol.

In the embodiment of the present invention, the xmcu server can search the sub-number whose usage status is idle in the preset configuration file, and then the virtual terminal corresponding to the sub-number in the idle state is the idle virtual terminal corresponding to the sub-number.

Specifically, the idle sub-number can be searched in the preset configuration file according to the preset order, and when the idle sub-number is found, the xmcu server establishes the first connection between the idle virtual terminal corresponding to the sub-number and the Internet terminal. a communication channel.

Wherein, the first communication channel may be used to transmit audio and video data between the Internet terminal and the xmcu server. After the first communication channel is established, the use state of the sub-number in the preset configuration file may also be updated to the occupied state.

Step 503, the xmcu server converts the videophone request message based on the h323 protocol into a videophone request message based on the 64-bit video networking protocol;

In the embodiment of the present invention, the xmcu server can convert the videophone request message based on the h323 protocol into a videophone request message based on the 64-bit video networking protocol. Wherein, the videophone request message based on the 64-bit Internet of Vision protocol can be transmitted in the Internet of Vision.

Step 504, the xmcu server sends the videophone request message based on the 64-bit video networking protocol to the video networking terminal corresponding to the video networking terminal number;

Specifically, the xmcu server can extract the video telephony terminal number in the 64-bit video telephony request message based on the video telephony protocol or the video telephony request message based on the h323 protocol, and determine the video telephony terminal number corresponding to the video telephony terminal number according to the video telephony terminal number. Corresponding video network terminal. The xmcu server can send a videophone request message based on a 64-bit video networking protocol to the video networking terminal corresponding to the video networking terminal number.

Step 505, the xmcu server receives the videophone response message based on the 64-bit video networking protocol returned by the video networking terminal in response to the video telephony request message based on the 64-bit video networking protocol, and establishes the virtual phone number corresponding to the sub-number A second communication channel between the terminal and the Internet of Things terminal.

After receiving the videophone request message based on the 64-bit Internet of Vision protocol, the Internet of Vision terminal can respond to the request message of the videophone based on the 64-bit Internet of Vision protocol, and return a videophone request message based on the 64-bit Internet of Vision protocol to the xmcu server. Video phone answer message.

In the embodiment of the present invention, the xmcu server may establish a second communication channel between the virtual terminal corresponding to the sub-number and the Internet of Vision terminal after receiving the videophone response message based on the 64-bit Internet of Vision protocol returned by the Internet of Vision terminal.

Wherein, the second communication channel can be used to transmit audio and video data between the Internet of Things terminal and the xmcu server.

In a preferred embodiment of the present invention, the method may also include the following steps:

The xmcu server converts the videophone response message based on the 64-bit video networking protocol into a videophone response message based on the h323 protocol; the xmcu server sends the videophone response message based on the h323 protocol to the Describe the Internet terminal.

In the embodiment of the present invention, the xmcu server can convert the videophone response message based on the 64-bit video networking protocol into a videophone response message based on the h323 protocol, and send the videophone response message based on the h323 protocol to the Internet terminal. Thereby, the Internet terminal can be notified that the videophone requesting connection is successful.

In a preferred embodiment of the present invention, the method may also include the following steps:

The xmcu server receives the first audio and video data of the 64-bit video networking format sent by the video networking terminal through the second communication channel; the xmcu server converts the first audio and video data of the 64-bit video networking format It is the first audio and video data in RTP format; the xmcu server sends the first audio and video data in RTP format to the Internet terminal through the first communication channel.

Wherein, the first audio and video data may be audio and video data collected by a video networking terminal.

In the embodiment of the present invention, the xmcu server receives the first audio and video data in the 64-bit video networking format sent by the video networking terminal through the second communication channel, and converts the first audio and video data in the 64-bit video networking format into RTP format The first audio and video data, and send the first audio and video data in RTP format to the Internet terminal through the first communication channel.

In a preferred embodiment of the present invention, the method may also include the following steps:

The Internet terminal decodes the first audio and video data in RTP format, and displays the decoded first audio and video data.

In the embodiment of the present invention, the Internet terminal can decode the first audio and video data in RTP format, and display the decoded first audio and video data.

In a preferred embodiment of the present invention, the method may also include the following steps:

The xmcu server receives the second audio and video data in the RTP format sent by the Internet terminal through the first communication channel; the xmcu server converts the second audio and video data in the RTP format into 64-bit visual networking format Second audio and video data; the xmcu server sends the second audio and video data in the 64-bit Internet of Vision format to the Internet of Vision terminal through the second communication channel.

Wherein, the second audio and video data may be audio and video data collected by an Internet terminal.

In the embodiment of the present invention, the xmcu server can receive the second audio and video data in RTP format sent by the Internet terminal through the first communication channel, and convert the second audio and video data in RTP format into the second audio and video data in 64-bit video network format data, and send the second audio and video data in the 64-bit Internet of Vision format to the Internet of Vision terminal through the second communication channel.

In a preferred embodiment of the present invention, the method may also include the following steps:

The Internet-of-Vision terminal decodes the second audio-video data in the 64-bit Internet-of-Vision format, and displays the decoded second audio-video data.

In the embodiment of the present invention, the Internet of Vision terminal may decode the second audio and video data in the 64-bit Internet of Vision format, and display the decoded second audio and video data.

FIG. 6 shows a flow chart of a communication method of a videophone system according to the present invention. In Figure 6, the following processes may be included:

1. The Internet terminal initiates a h323 protocol request to the xmcu server.

2. After the xmcu server receives the h323 protocol request initiated by the Internet terminal, it searches for an idle virtual terminal corresponding to the sub-number in the request from the configuration file, establishes a communication channel, and converts the h323 protocol request into a 64-bit visual networking protocol request , and send the 64-bit Internet of Vision protocol request to the Internet of Vision terminal.

3. The Internet of Vision terminal receives the 64-bit Internet of Vision protocol request from the xmcu server, responds to the 64-bit Internet of Vision protocol request, and sends a 64-bit Internet of Vision protocol response.

4. After the xmcu server receives the 64-bit Internet of Vision protocol response, it converts the 64-bit Internet of Vision protocol response into an h323 protocol response and sends it to the Internet terminal.

5. The Internet of Vision terminal sends 64-bit audio and video data in Internet of Vision format to the xmcu server.

6. The xmcu server receives the audio and video data in 64-bit Internet-of-Vision format sent by the Internet-of-Vision terminal, converts the audio-video data in 64-bit Internet-of-Vision format into audio-video data in RTP format, and sends it to the Internet terminal.

7. The Internet terminal sends the audio and video data in RTP format to the xmcu server.

8. The xmcu server converts the received audio and video data in RTP format into audio and video data in 64-bit video networking format and sends them to the video networking terminal.

In the embodiment of the present invention, the xmcu server receives the videophone request message based on the h323 protocol sent by the Internet terminal, and establishes the first communication channel between the virtual terminal corresponding to the sub-number and the Internet terminal, and sends the videophone request message based on the h323 protocol. The telephone request message is converted into a videophone request message based on the 64-bit video networking protocol, and the video telephony request based on the 64-bit video networking protocol is sent to the video networking terminal corresponding to the video networking terminal number, and the video telephony request message based on the 64-bit video networking protocol is sent. protocol videophone request message, receive the videophone request message based on the 64-bit videonetwork protocol from the videophone terminal, return the videophone response message based on the 64-bit videonetwork protocol, and establish the virtual terminal corresponding to the sub-number and the videophone request message A second communication channel between networked terminals. The 64-bit video networking protocol is supported by the xmcu server, so that when performing video networking services, the sub-numbers of the virtual terminal number can be consumed for data transmission, thereby expanding the available virtual terminal number resources and avoiding the exhaustion of virtual terminal number resources.

It should be noted that, for the method embodiment, for the sake of simple description, it is expressed as a series of action combinations, but those skilled in the art should know that the embodiment of the present invention is not limited by the described action sequence, because According to the embodiment of the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

Referring to FIG. 7 , it shows a structural block diagram of a communication device embodiment of a videophone system according to an embodiment of the present invention. The videophone system includes an Internet terminal, a video network terminal and an xmcu server. The device may include the following module:

The first request sending module 701 is used for the xmcu server to receive the videophone request message based on the h323 protocol sent by the Internet terminal; the videophone request message based on the h323 protocol carries the video network terminal number and sub-number;

The first communication channel establishment module 702 is used for the xmcu server to establish a first communication channel between the virtual terminal corresponding to the sub-number and the Internet terminal according to the sub-number;

The request conversion module 703 is used for the xmcu server to convert the videophone request message based on the h323 protocol into a videophone request message based on the 64-bit video networking protocol;

The second request sending module 704 is used for the xmcu server to send the videophone request message based on the 64-bit video networking protocol to the video networking terminal corresponding to the video networking terminal number;

The second communication channel establishment module 705 is used for the xmcu server to receive the videophone response message based on the 64-bit video networking protocol returned by the video networking terminal in response to the video telephony request message based on the 64-bit video networking protocol, and establish A second communication channel between the virtual terminal corresponding to the sub-number and the Internet-of-Vision terminal.

In a preferred embodiment of the present invention, the first communication channel establishment module 702 may include the following submodules:

A search submodule is used for the xmcu server to search for an idle virtual terminal corresponding to the subnumber in a preset configuration file;

The first communication channel establishment sub-module is used for the xmcu server to establish the first communication channel between the idle virtual terminal corresponding to the sub-number and the Internet terminal.

In a preferred embodiment of the present invention, the device may also include the following modules:

Response conversion module, for the xmcu server to convert the videophone response message based on the 64-bit video networking protocol into a videophone response message based on the h323 protocol;

The answer sending module is used for the xmcu server to send the videophone answer message based on the h323 protocol to the Internet terminal.

In a preferred embodiment of the present invention, it also includes:

The first audio and video data receiving module is used for the xmcu server to receive the first audio and video data in the 64-bit video networking format sent by the video networking terminal through the second communication channel;

The first audio and video data conversion module is used for the xmcu server to convert the first audio and video data of the 64-bit video networking format into the first audio and video data of the RTP format;

The first audio and video data sending module is used for the xmcu server to send the first audio and video data in RTP format to the Internet terminal through the first communication channel.

In a preferred embodiment of the present invention, it also includes:

The first audio and video data display module is used for the Internet terminal to decode the first audio and video data in RTP format, and display the decoded first audio and video data.

In a preferred embodiment of the present invention, it also includes:

The second audio and video data receiving module is used for the xmcu server to receive the second audio and video data in RTP format sent by the Internet terminal through the first communication channel;

The second audio and video data conversion module is used for the xmcu server to convert the second audio and video data in the RTP format to the second audio and video data in the 64-bit video networking format;

The second audio and video data sending module is used for the xmcu server to send the second audio and video data in the 64-bit video networking format to the video networking terminal through the second communication channel.

In a preferred embodiment of the present invention, it also includes:

The second audio-video data display module is used for the Internet-of-Vision terminal to decode the second audio-video data in the 64-bit Internet-of-Vision format, and display the decoded second audio-video data.

As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

The embodiment of the present invention also provides an electronic device, including:

one or more processors; and

One or more machine-readable media having instructions stored thereon, when executed by the one or more processors, causes the electronic device to perform the steps of one or more methods described in the embodiments of the present invention .

The embodiment of the present invention also provides a computer-readable storage medium, which stores a computer program to enable a processor to execute the steps of the method described in the embodiment of the present invention.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, devices, or computer program products. Accordingly, embodiments of the 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 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, etc.) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowcharts and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor or processor of other programmable data processing terminal equipment to produce a machine such that instructions executed by the computer or processor of other programmable data processing terminal equipment Produce means for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the The instruction means implements the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded into a computer or other programmable data processing terminal equipment, so that a series of operational steps are performed on the computer or other programmable terminal equipment to produce computer-implemented processing, thereby The instructions executed above provide steps for implementing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

Having described preferred embodiments of embodiments of the present invention, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be construed to cover the preferred embodiment and all changes and modifications which fall within the scope of the embodiments of the present invention.

Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or terminal equipment comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements identified, or also include elements inherent in such a process, method, article, or end-equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

The communication method of a videophone system and the communication device of a videophone system provided by the present invention have been introduced in detail above. In this paper, specific examples have been used to illustrate the principle and implementation of the present invention. The above implementation The description of the example is only used to help understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary As stated above, the content of this specification should not be construed as limiting the present invention.

Claims (10)

1. a kind of communication means of video-phone system, which is characterized in that the video-phone system includes internet terminal, view Networked terminals and xmcu server, which comprises

The xmcu server receives the videophone request message based on h323 agreement that the internet terminal is sent；It is described Videophone request message based on h323 agreement carries view networked terminals number and sub- number；

The xmcu server establishes the corresponding virtual terminal of the sub- number and the internet terminal according to the sub- number Between the first communication channel；

The xmcu server is converted to the videophone request message based on h323 agreement based on 64 view networking associations The videophone request message of view；

The xmcu server is sent described based on 64 views to view networked terminals corresponding with the view networked terminals number The videophone request message of networking protocol；

The xmcu server receives the view networked terminals response videophone request message that networking protocol is regarded based on 64, Return based on 64 regard networking protocol videophone response message, establish the corresponding virtual terminal of the sub- number with it is described Depending on the second communication channel between networked terminals.

2. the method according to claim 1, wherein the xmcu server establishes institute according to the sub- number State the first communication channel between the corresponding virtual terminal of sub- number and the internet terminal, comprising:

The xmcu server searches the virtual terminal of free time corresponding with the sub- number in preset configuration file；

The xmcu server is established between the virtual terminal and the internet terminal of free time corresponding with the sub- number First communication channel.

3. the method according to claim 1, wherein the xmcu server receives described in view networked terminals response The videophone request message of networking protocol is regarded based on 64, return is disappeared based on 64 videophone responses depending on networking protocol After breath, further includes:

The xmcu server assists described be converted to based on 64 videophone response messages depending on networking protocol based on h323 The videophone response message of view；

The videophone response message based on h323 agreement is sent to the internet terminal by the xmcu server.

4. the method according to claim 1, wherein further include:

The xmcu server receives 64 views networking format that the view networked terminals are sent by second communication channel The first audio, video data；

The xmcu server regards the first sound that described 64 the first audio, video datas depending on format of networking are converted to RTP format Frequency evidence；

First audio, video data of the RTP format is sent to described by the xmcu server by first communication channel Internet terminal.

5. according to the method described in claim 4, it is characterized by further comprising:

The internet terminal is decoded the first audio, video data of RTP format, and shows decoded first audio-video Data.

6. the method according to claim 1, wherein further include:

The xmcu server receives the second sound of the RTP format that the internet terminal is sent by first communication channel Video data；

The xmcu server regards the second sound that the second audio, video data of the RTP format is converted to 64 view networking formats Frequency evidence；

The xmcu server sends out the second audio, video data of described 64 view networking formats by second communication channel It send to the view networked terminals.

7. according to the method described in claim 6, it is characterized by further comprising:

It is described that described 64 the second audio, video datas depending on format of networking are decoded depending on networked terminals, and show decoded Second audio, video data.

8. a kind of communication device of video-phone system, which is characterized in that the video-phone system includes internet terminal, view Networked terminals and xmcu server, described device include:

First request sending module, for the xmcu server receive that the internet terminal sends based on h323 agreement Videophone request message；The videophone request message based on h323 agreement carries view networked terminals number and son number Code；

First communication channel establishes module, and for the xmcu server according to the sub- number, it is corresponding to establish the sub- number Virtual terminal and the internet terminal between the first communication channel；

Conversion module is requested, is converted to the videophone request message based on h323 agreement for the xmcu server The videophone request message of networking protocol is regarded based on 64；

Second request sending module is networked eventually for the xmcu server to view corresponding with the view networked terminals number End sends the videophone request message that networking protocol is regarded based on 64；

Second communication channel establishes module, and it is described based on 64 view connection to receive view networked terminals response for the xmcu server The videophone request message of fidonetFido, the videophone response message that networking protocol is regarded based on 64 of return, described in foundation The second communication channel between the sub- corresponding virtual terminal of number and the view networked terminals.

9. a kind of electronic equipment characterized by comprising

One or more processors；With

One or more machine readable medias of instruction are stored thereon with, when being executed by one or more of processors, are made Obtain the step of electronic equipment executes one or more methods as described in claim 1 to 7.

10. a kind of computer readable storage medium, which is characterized in that its computer program stored executes processor as weighed Benefit requires the step of 1 to 7 described in any item methods.