CN111131758A

CN111131758A - Audio and video data calling method and device and storage medium

Info

Publication number: CN111131758A
Application number: CN201911381166.1A
Authority: CN
Inventors: 赵振华; 杜小波; 袁占涛; 王艳辉
Original assignee: Visionvera Information Technology Co Ltd
Current assignee: Visionvera Information Technology Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-05-08
Anticipated expiration: 2039-12-27
Also published as: CN111131758B

Abstract

The embodiment of the invention provides an audio and video data calling method, an audio and video data calling device and a storage medium, which are applied to a video network, wherein when a conference control client receives a trigger operation of starting an executable program of a virtual terminal, an conference entering instruction for adding the virtual terminal into a currently controlled video network conference is generated, and then the conference entering instruction is sent to a video network server; and the conference control client receives feedback information returned by the video networking server aiming at the conference entering instruction, and according to the feedback information, when the virtual terminal is determined to successfully enter the conference and is in an online state, an operator of the conference control client can call audio and video data of any party in a control interface of the conference control client, so that the effect of patrolling pictures in the networked conference is realized.

Description

Audio and video data calling method and device and storage medium

Technical Field

The invention relates to the technical field of video networking, in particular to an audio and video data calling method, an audio and video data calling device and a storage medium.

Background

With the rapid development of network technologies, bidirectional communications such as video conferences and video teaching are widely popularized in the aspects of life, work, learning and the like of users. Video conferencing refers to a conference in which people at two or more locations have a face-to-face conversation via a communication device and a network.

In a video-on-internet video conference, video conference services are generally managed by a conference control client, which belongs to a video-on-internet video conference control software and is installed in a computer, and which provides a conference control interface to an operator of the video-on-internet video conference to perform a function of pulling in and out a certain user terminal from the video-on-internet video conference or controlling the progress of the video-on-internet video conference.

In the prior art, an operator at a conference control client cannot see related conditions in the video conference, cannot directly check audio and video data output by each participant terminal in the video conference, can only passively receive feedback of participants, and has low feedback efficiency and insufficient intelligence in conference control.

Disclosure of Invention

In view of the above problems, embodiments of the present invention are provided to provide an audio/video data retrieval method, a corresponding audio/video data retrieval device and a storage medium, which overcome or at least partially solve the above problems.

According to one aspect of the invention, the embodiment of the invention discloses an audio and video data calling method, which is applied to a video network, wherein the video network is in communication connection with an Ethernet; the video network comprises a video network server, the Ethernet comprises a conference control client, an executable program of a virtual terminal is configured in the conference control client, and the virtual terminal is registered in the video network server, and the method comprises the following steps:

when the conference control client receives the trigger operation of starting the executable program of the virtual terminal, generating a conference-in instruction for adding the virtual terminal into the currently controlled video networking conference;

the conference control client sends the conference entering instruction to the video networking server;

the conference control client receives feedback information returned by the video network server aiming at the conference joining instruction;

the conference control client determines whether the virtual terminal successfully participates and is in an online state according to the feedback information;

when the virtual terminal successfully accesses the conference and is in an online state, the conference control client sends a stream adjusting instruction to the video networking server through the virtual terminal, wherein the stream adjusting instruction is used for requesting to adjust audio and video data of any party in the video networking conference;

and the conference control client receives the audio and video data returned by the video networking server aiming at the stream adjusting instruction through the virtual terminal.

Optionally, the conference entering instruction includes a video networking number of the virtual terminal;

the step that the conference control client sends the conference entering instruction to the video network server comprises the following steps:

and the conference control client sends the conference entering instruction to the video networking server for adding the video networking number into the video networking conference.

According to another aspect of the invention, the embodiment of the invention discloses another audio and video data calling method, which is applied to a video network, wherein the video network is in communication connection with the Ethernet; the video network comprises a video network server, the Ethernet comprises a conference control client, an executable program of a virtual terminal is configured in the conference control client, and the virtual terminal is registered in the video network server, and the method comprises the following steps:

the video network server receives a conference entering instruction sent by the conference control client; the conference entering instruction is generated when an executable program of the virtual terminal is started;

the video networking server adds the virtual terminal into a video networking conference currently controlled by the conference control client aiming at the conference entering instruction;

the video network server sends feedback information of whether the virtual terminal is successful in meeting and whether the virtual terminal is in an online state to the conference control client;

the video network server receives a stream adjusting instruction sent by the virtual terminal when the conference control client-side successfully accesses the virtual terminal and is in an online state; the stream adjusting instruction is used for requesting to adjust the audio and video data of any participant in the video networking conference;

and the video networking server returns the audio and video data to the conference control client aiming at the stream adjusting instruction.

Optionally, the video network further includes a plurality of video network terminals communicatively connected to the video network server;

the step that the video networking server adds the virtual terminal into the video networking conference currently controlled by the conference control client aiming at the conference entering instruction comprises the following steps:

the video network server determines a target video network terminal in an idle state in the plurality of video network terminals aiming at the conference entering instruction;

the video network server generates a binding relationship between the target video network terminal and the virtual terminal;

and the video networking server adds the target video networking terminal which generates a binding relationship with the virtual terminal into the video networking conference currently controlled by the conference control client.

Optionally, the feedback information includes conference entrance feedback information and online notification information;

the method further comprises the following steps:

when the target video network terminal successfully joins the video network conference, the video network server generates the conference joining feedback information;

when the target video network terminal which is successfully joined in the video network conference is online, the video network server generates the online notification information;

the step that the video network server sends feedback information whether the virtual terminal is successful in meeting and whether the virtual terminal is in an online state to the conference control client side comprises the following steps:

and the video network server sequentially sends the conference entering feedback information and the online notification information to the conference control client.

Based on the same invention concept, the embodiment of the invention also discloses an audio and video data calling device, which is applied to a video network, wherein the video network is in communication connection with the Ethernet; the device is configured in the conference control client, and comprises the following modules:

the conference joining instruction generating module is used for generating a conference joining instruction for joining the virtual terminal into the currently controlled video network conference when receiving a triggering operation for starting an executable program of the virtual terminal;

the conference entering instruction sending module is used for sending the conference entering instruction to the video network server;

the feedback information receiving module is used for receiving feedback information returned by the video network server aiming at the conference entering instruction;

a relevant state determining module, configured to determine whether the virtual terminal successfully enters the meeting and is in an online state according to the feedback information;

the stream adjusting instruction sending module is used for sending a stream adjusting instruction to the video networking server through the virtual terminal when the virtual terminal is successful in conference entry and is in an online state, and the stream adjusting instruction is used for requesting to adjust audio and video data of any participant in the video networking conference;

and the audio and video data receiving module is used for receiving the audio and video data returned by the video networking server aiming at the stream adjusting instruction through the virtual terminal.

Based on the same invention concept, the embodiment of the invention also discloses another audio and video data calling device, which is applied to a video network, wherein the video network is in communication connection with the Ethernet; the device is configured in the video network server and comprises the following modules:

the conference control client is used for receiving conference instructions sent by the conference control client; the conference entering instruction is generated when an executable program of the virtual terminal is started;

the virtual terminal conference entering module is used for adding the virtual terminal into the video networking conference currently controlled by the conference control client according to the conference entering instruction;

a feedback information sending module, configured to send feedback information of whether the virtual terminal successfully participates and whether the virtual terminal is in an online state to the conference control client;

the stream adjusting instruction receiving module is used for receiving a stream adjusting instruction sent by the conference control client through the virtual terminal when the virtual terminal is successfully accessed and is in an online state; the stream adjusting instruction is used for requesting to adjust the audio and video data of any participant in the video networking conference;

and the audio and video data returning module is used for returning the audio and video data to the conference control client aiming at the stream adjusting instruction.

the virtual terminal conference entering module comprises the following sub-modules:

the target video network terminal determining submodule is used for determining a target video network terminal in an idle state in the plurality of video network terminals according to the conference entering instruction;

the binding relationship generation submodule is used for generating a binding relationship between the target video network terminal and the virtual terminal;

and the video networking terminal conference accessing sub-module is used for adding the target video networking terminal which generates the binding relationship with the virtual terminal into the video networking conference currently controlled by the conference control client.

According to another aspect of the present invention, there is provided an audio-video data retrieval apparatus, including:

one or more processors; and

one or more machine readable media having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform one or more of the above-described audiovisual data retrieval methods.

According to still another aspect of the present invention, there is provided a computer-readable storage medium storing a computer program for causing a processor to execute the above-described audio-video data retrieval method.

The embodiment of the invention has the following advantages:

in the embodiment of the invention, when a conference control client receives a trigger operation for starting an executable program of a virtual terminal, a conference entering instruction for adding the virtual terminal into a currently controlled video networking conference is generated, and then the conference entering instruction is sent to a video networking server; the conference control client receives feedback information returned by the video networking server aiming at the conference entering instruction, and according to the feedback information, when the virtual terminal is determined to successfully enter the conference and is in an online state, an operator of the conference control client can call audio and video data of any participant in a control interface of the conference control client, so that the effect of controlling the process of patrolling pictures in the video networking conference is realized, and the effect of checking whether the video stream output of each participant terminal in the video networking conference is normal is achieved.

Drawings

Fig. 1 is a flowchart of steps of a first embodiment of an audio/video data retrieval method according to the present invention;

fig. 2 is a flowchart of steps of a second embodiment of an audio/video data retrieval method according to the present invention;

fig. 3 is a schematic flow chart of an embodiment of an audio/video data retrieval process according to the present invention;

fig. 4 is a schematic structural diagram of a third embodiment of an audio/video data retrieval device according to the present invention;

fig. 5 is a schematic structural diagram of a fourth embodiment of an audio/video data retrieval apparatus according to the present invention;

FIG. 1-1 is a networking schematic of a video network of the present invention;

FIG. 2-2 is a schematic diagram of a hardware architecture of a node server according to the present invention;

fig. 3-3 are schematic hardware structures of an access switch of the present invention;

fig. 4-4 are schematic hardware structures of an ethernet protocol conversion gateway according to 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.

In view of the technical problem of the embodiment of the present invention, referring to fig. 1, a flowchart illustrating a first step of an audio/video data retrieval 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 is in communication connection with an ethernet network; the method may specifically include the following steps:

step S101, when the conference control client receives the trigger operation of starting the executable program of the virtual terminal, generating a conference-entering instruction for adding the virtual terminal into the currently controlled video network conference;

virtual Terminal (VT) is an international organization for standardization (ISO) protocol that provides remote terminal emulation of the Telnet protocol similar to the Internet. The user at the remote terminal may run applications on the remote computer as if they were sitting in front of the computer. Therefore, the virtual terminal of the embodiment of the invention corresponds to an entity video networking terminal in the video networking conference and is used as a speaker of the video networking terminal in the video networking conference. The virtual terminal needs to register in the video network server in advance to realize communication in the video network so as to obtain a communication certificate for transmitting audio and video data in the video network, such as an identity card number of a person. In the video network, a virtual terminal registered in a video network server is assigned with a video network number, the video network number generates a binding relationship with the virtual terminal, and the video network number is a communication certificate of the virtual terminal in the video network.

The conference control client belongs to video networking video conference control software and is installed in a computer. Therefore, the embodiment of the invention places the path of the virtual terminal in the conference control client directory of the computer provided with the conference control client, thereby completing the configuration of the executable program of the virtual terminal. Based on the above, in the embodiment of the present invention, the path of the virtual terminal may be a video networking number of the virtual terminal.

After the configuration is completed, the calling port of the executable program of the virtual terminal can be packaged into a trigger button and displayed in the control interface of the conference control client, an operator of the conference control client can complete one-key starting of the executable program of the virtual terminal by clicking the trigger button, and then the function of inspecting the picture of each participant in the networked conference through the control interface of the conference control client is realized.

Specifically, in the first step of implementing the above functions, when the executable program of the virtual terminal is triggered, an enrollment instruction for adding the configured virtual terminal to the currently controlled video networking conference is automatically generated. Based on the description of the virtual terminal, the conference instruction comprises the video network number of the virtual terminal.

Step S102, the conference control client sends the conference entering instruction to the video network server;

and then, the conference control client sends the conference entering instruction to the video networking server for adding the video networking number into the video networking conference. Because the conference control client is located in the ethernet, in the video networking conference, a participant is generally designated as a chairman of the conference, and the chairman of the conference communicates with the video networking server to forward the instruction of the conference control client to other participants, or return the response or request of other participants to the conference control client. Assuming that the designated chairman of the conference is a terminal a and other participants are collectively called as a terminal B, the step of sending the conference joining instruction to the video network server by the conference control client may specifically be: the conference control client firstly sends the conference entering instruction to the terminal A, and then the terminal A encapsulates the conference entering instruction into an instruction based on a video networking protocol and then sends the instruction to the video networking server.

Step S103, the conference control client receives feedback information returned by the video network server aiming at the conference-in instruction;

the steps executed when the video network server receives the conference entering instruction refer to the explanation of the second embodiment, which is not described herein again.

Correspondingly, the feedback information is sent to the conference chairman A terminal by the video networking server, and then the A terminal forwards the feedback information to the conference control client.

Step S104, the conference control client determines whether the virtual terminal successfully enters the conference and is in an online state according to the feedback information;

the feedback information in the embodiment of the invention comprises conference entrance feedback information and online notification information, and the conference control client can determine whether the virtual terminal successfully enters a conference and is in an online state according to the conference entrance feedback information and the online notification information.

Step S105, when the virtual terminal is successful in meeting and is in an online state, the conference control client sends a stream adjusting instruction to the video networking server through the virtual terminal, wherein the stream adjusting instruction is used for requesting to adjust audio and video data of any participant in the video networking conference;

and step S106, the conference control client receives the audio and video data returned by the video networking server aiming at the stream adjusting instruction through the virtual terminal.

The conference control client side determines that the virtual terminal is successful in conference entering and is in an online state, then a list of all participants can be obtained, a stream adjusting instruction is sent to the video networking server through the virtual terminal to request to adjust audio and video data of any participant in the video networking conference, then the audio and video data are played in a conference control interface of the conference control client side, and preferably the audio and video data are played in the conference control interface of the conference control client side in a small window mode.

The stream adjusting instruction can comprise the video networking number of any selected participant, then the video networking server sends the audio and video data of the relevant participant to a target video networking terminal which generates a binding relationship with the virtual terminal according to the video networking number in the stream adjusting instruction, and in the sending process of the audio and video data, the conference control client can receive the audio and video data through the virtual terminal. Referring to fig. 3, a flow chart of an embodiment of the audio/video data retrieval process of the present invention is shown.

In summary, in steps S101 to S106, the embodiment of the present invention provides an audio/video data retrieving method from the perspective of the conference control client, so that the conference control client does not join the conference as a participant, but an operator of the conference control client can still retrieve audio/video data of any participant in a control interface of the conference control client, thereby achieving an effect of controlling a process of the conference to tour a picture in the video-networking conference, and achieving an effect of checking whether video stream output of each participant terminal in the video-networking conference is normal.

Referring to fig. 2, a flowchart of the steps of an embodiment two of the audio/video data retrieval method of the present invention is shown, where the method may be applied to a video network, and the video network is communicatively connected to an ethernet network; the method may specifically include the following steps:

step S201, the video network server receives a conference-in instruction sent by the conference control client; the conference entering instruction is generated when an executable program of the virtual terminal is started;

step S202, the video network server adds the virtual terminal into the video network conference currently controlled by the conference control client according to the conference joining instruction;

step S203, the video network server sends feedback information of whether the virtual terminal is successful in meeting and whether the virtual terminal is in an online state to the conference control client;

step S204, the video network server receives a stream adjusting instruction sent by the virtual terminal when the conference control client is successfully accessed and is in an online state; the stream adjusting instruction is used for requesting to adjust the audio and video data of any participant in the video networking conference;

step S205, the video networking server returns the audio and video data to the conference control client according to the stream adjustment instruction.

In the embodiment of the invention, the video network further comprises a plurality of video network terminals which are in communication connection with the video network server; after receiving the conference entering instruction, the video network server needs to invite a video network terminal to join the video network conference and bind with the virtual terminal. The video network terminal can be a video network terminal appointed by the conference control client, only generates a binding relationship with a virtual terminal configured in the conference control client, and does not unbind after binding, so that a fixed binding relationship is formed. In the above-mentioned designated manner, if the terminal of the video network forms a fixed binding relationship with the virtual terminal, it cannot execute other services any more, resulting in a low utilization rate of the terminal of the video network.

In view of the above fact that the utilization rate of the terminal of the video network is not high under the fixed binding relationship, preferably, the step S202 may include the following sub-steps:

substep 1: the video network server determines a target video network terminal in an idle state in the plurality of video network terminals aiming at the conference entering instruction;

substep 2: the video network server generates a binding relationship between the target video network terminal and the virtual terminal;

substep 3: and the video networking server adds the target video networking terminal which generates a binding relationship with the virtual terminal into the video networking conference currently controlled by the conference control client.

In practice, the video network server according to the embodiment of the present invention may monitor the status of each video network terminal connected thereto in a relevant manner, where the status includes online, offline, business, and idle. Therefore, in substep 1, when receiving the conference entry instruction, the video network server may select a target video network terminal in an idle state from the plurality of video network terminals according to the state of each video network terminal.

And after the target video networking terminal is selected, the video networking server obtains the MAC address and the video networking number of the target video networking terminal. Then, the video network server generates a binding relationship between the video network number of the target video network terminal and the video network number of the virtual terminal, thereby completing the binding process in substep 2.

Next, substep 3 is performed, since the target video network terminal is participating as a substitute conference control client, and therefore the video network server directly pulls the target video network terminal into the video network conference. Compared with the traditional conference entering mode, the embodiment of the invention simplifies the conference entering program, reduces the reciprocating interaction process of the video network server and the conference control client, and can reduce the operating pressure of the video network server.

When a video networking conference is started, a conference list related to the video networking conference is established in a video networking server, and video networking numbers and MAC addresses of all participants in the video networking conference are recorded in the conference list. In practice, the process of pulling the target video networking terminal into the video networking conference can be regarded as a process of adding the video networking number and the MAC address of the target video networking terminal into the conference list of the video networking conference by the video networking server. When the target video networking terminal is pulled into the video networking conference by the video networking server, the target video networking terminal is indicated to be successfully added into the video networking conference, and the video networking server generates the conference joining feedback information and returns the conference joining feedback information to the conference control client, so that an operator of the conference control client can know the current conference joining progress in time.

And then, the video network server sends a conference invitation instruction to the target video network terminal according to the MAC address of the target video network terminal. And when the target video network terminal agrees to the conference, the target video network terminal responds to the conference invitation instruction. And the target video network terminal which is successfully added into the video network conference is on line, so that the video network server generates on-line notification information.

As can be seen from the above, the feedback information includes conference-entering feedback information and online notification information; therefore, the step S203 may be implemented as follows:

In steps S201 to S205, the embodiment of the present invention provides an audio/video data retrieval method from the perspective of the video networking server, so that the conference control client does not join the conference as a participant, but an operator of the conference control client can still retrieve audio/video data of any participant in a control interface of the conference control client, thereby achieving an effect of controlling a process of patrolling a picture in the video networking conference, and achieving an effect of checking whether video stream output of each participant terminal in the video networking conference is normal. Based on the inventive concept together with the embodiments, the unexplained parts of the above steps can refer to the explanation of the first embodiment, and are not described herein again.

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. 4, a schematic structural diagram of a third embodiment of the audio/video data retrieval device according to the present invention is shown corresponding to the method of the first embodiment, where the device may be applied to a video network, and the video network is communicatively connected to an ethernet network; the video network includes a video network server, the ethernet includes a conference control client, the conference control client is configured with an executable program of a virtual terminal, the virtual terminal is registered in the video network server, the apparatus is configured with the conference control client, and the apparatus specifically includes the following modules:

a conference joining instruction generating module 401, configured to generate a conference joining instruction for joining the virtual terminal to a currently-controlled video network conference when a trigger operation for starting an executable program of the virtual terminal is received;

a conference instruction sending module 402, configured to send the conference instruction to the video network server;

a feedback information receiving module 403, configured to receive feedback information returned by the video network server for the conference entering instruction;

a relevant state determining module 404, configured to determine whether the virtual terminal successfully enters the meeting and is in an online state according to the feedback information;

a stream adjusting instruction sending module 405, configured to send a stream adjusting instruction to the video networking server through the virtual terminal when the virtual terminal successfully enters the conference and is in an online state, where the stream adjusting instruction is used to request to adjust audio and video data of any participant in the video networking conference;

and an audio and video data receiving module 406, configured to receive, through the virtual terminal, the audio and video data returned by the video networking server for the stream adjustment instruction.

In an optional embodiment of the present invention, the conference entry instruction includes a video networking number of the virtual terminal;

Referring to fig. 5, a schematic structural diagram of a fourth embodiment of the audio/video data retrieval device according to the present invention is shown corresponding to the method of the second embodiment, where the device is applied to a video network, and the video network is in communication connection with an ethernet network; the device is configured in the video network server and comprises the following modules:

a conference instruction receiving module 501, configured to receive a conference instruction sent by the conference control client; the conference entering instruction is generated when an executable program of the virtual terminal is started;

a virtual terminal conference entering module 502, configured to join the virtual terminal into the video networking conference currently controlled by the conference control client according to the conference entering instruction;

a feedback information sending module 503, configured to send feedback information about whether the virtual terminal successfully enters the conference and whether the virtual terminal is in an online state to the conference control client;

a stream adjustment instruction receiving module 504, configured to receive a stream adjustment instruction sent by the conference control client through the virtual terminal when the virtual terminal successfully enters the conference and is in an online state; the stream adjusting instruction is used for requesting to adjust the audio and video data of any participant in the video networking conference;

and an audio and video data returning module 505, configured to return the audio and video data to the conference control client according to the stream adjusting instruction.

In an optional embodiment of the present invention, the video network further includes a plurality of video network terminals communicatively connected to the video network server;

the virtual terminal conference module 502 includes the following sub-modules:

In an optional embodiment of the present invention, the feedback information includes conference entry feedback information and online notification information;

the apparatus may further include the following modules:

the conference participation feedback information generation module is used for generating the conference participation feedback information when the target video network terminal successfully joins the video network conference;

the online notification information generation module is used for generating online notification information when the target video networking terminal which is successfully added into the video networking conference is online;

the feedback information sending module 503 may include the following sub-modules:

and the information sending submodule is used for sequentially sending the conference entering feedback information and the online notification information to the conference control client.

one or more processors; and

For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.

The 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. 1-1, the video network is divided into two parts, 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. 2-2, the system mainly comprises a network interface module 2-201, a switching engine module 2-202, a CPU module 2-203, and a disk array module 2-204;

the network interface module 2-201, the CPU module 2-203 and the disk array module 2-204 enter packets into the switching engine module 2-202; the switching engine module 2-202 performs the operation of looking up the address table 2-205 on the incoming packet, thereby obtaining the guiding information of the packet; and stores the packet into a queue of a corresponding packet buffer 2-206 according to the packet's steering information; discard if the queue of the packet buffers 2-206 is close to full; switching engine modulo 2-202 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 modules 2 to 204 mainly realize the control of the hard disk, including initialization, reading and writing and other operations of the hard disk; the CPU modules 2 to 203 are mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring the address tables 2 to 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 modules 2 to 204.

The access switch:

as shown in fig. 3-3, it mainly includes network interface module (downlink network interface module 3-301, uplink network interface module 3-302), switching engine module 3-303 and CPU module 3-304;

wherein, the packet (uplink data) coming from the downlink network interface module 3-301 enters the packet detection module 3-305; the packet detection module 3-305 detects whether the Destination Address (DA), the Source Address (SA), the type of the data packet and the length of the packet meet the requirements, if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 3-303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 3-303; the data packet coming from the CPU module 3-304 enters the switching engine module 3-303; the switching engine module 3-303 performs the operation of looking up the address table 3-306 on the incoming packet, thereby obtaining the guiding information of the packet; if the packet entering the switching engine module 3-303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 3-307 in association with the stream-id; if the queue of the packet buffer 3-307 is nearly full, discard; if the packet entering the switching engine module 3-303 is not from the downlink network interface to the uplink network interface, the data packet is stored into the queue of the corresponding packet buffer 3-307 according to the guiding information of the packet; if the queue of the packet buffer 3-307 is nearly full, it is discarded.

The switching engine module 3-303 polls all packet buffer queues, which in this embodiment of the 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 2-208 is configured by the CPU module 2-204, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.

The CPU modules 3-304 are mainly responsible for protocol processing with the node servers, configuration of the address table 306, and configuration of the code rate control modules 3-308.

Ethernet protocol conversion gateway：

As shown in fig. 4-4, the device mainly includes a network interface module (a downlink network interface module 4-401 and an uplink network interface module 4-402), a switching engine module 4-403, a CPU module 4-404, a packet detection module 4-405, a code rate control module 4-408, an address table 4-406, a packet buffer 4-407, an MAC adding module 4-409, and an MAC deleting module 4-410.

Wherein, the data packet coming from the downlink network interface module 4-401 enters the packet detection module 4-405; the packet detection modules 4 to 405 detect 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 data packet meet the requirements or not, and if so, a corresponding stream identifier (stream-id) is allocated; then, the MAC deleting module 4-410 subtracts the MAC DA, the MAC SA and the length order type (2byte) and enters a corresponding receiving buffer, otherwise, the MAC deleting module discards the data;

the downlink network interface module 4-401 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 destination address DA of the packet, and the ethernet MAC DA of the terminal, the MAC SA of the ethernet protocol gateway, and the ethernet length or frame type are added and sent.

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.

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 audio and video data retrieval method, the audio and video data retrieval device and the storage medium provided by the invention are introduced in detail, and a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. The method is characterized in that the method is applied to a video network, and the video network is in communication connection with an Ethernet; the video network comprises a video network server, the Ethernet comprises a conference control client, an executable program of a virtual terminal is configured in the conference control client, and the virtual terminal is registered in the video network server, and the method comprises the following steps:

2. The method of claim 1, wherein the conference instruction comprises a video network number of the virtual terminal;

3. The method is characterized in that the method is applied to a video network, and the video network is in communication connection with an Ethernet; the video network comprises a video network server, the Ethernet comprises a conference control client, an executable program of a virtual terminal is configured in the conference control client, and the virtual terminal is registered in the video network server, and the method comprises the following steps:

4. The method of claim 3, wherein the video network further comprises a plurality of video network terminals communicatively connected to the video network server;

5. The method of claim 4, wherein the feedback information comprises conference entry feedback information and online notification information;

the method further comprises the following steps:

6. The device for calling the audio and video data is characterized by being applied to a video network, wherein the video network is in communication connection with an Ethernet; the device is configured in the conference control client, and comprises the following modules:

7. The device for calling the audio and video data is characterized by being applied to a video network, wherein the video network is in communication connection with an Ethernet; the device is configured in the video network server and comprises the following modules:

8. The apparatus of claim 7, further comprising a plurality of video networking terminals communicatively coupled to the video networking server in the video networking;

9. An audio-video data retrieval apparatus, comprising:

one or more processors; and

one or more machine readable media having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform one or more of the audiovisual data retrieval methods of claims 1-5.

10. A computer-readable storage medium characterized by storing a computer program causing a processor to execute the audio-visual data calling method according to any one of claims 1 to 5.