CN109547731B - Video conference display method and system - Google Patents
Video conference display method and system Download PDFInfo
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- CN109547731B CN109547731B CN201811512371.2A CN201811512371A CN109547731B CN 109547731 B CN109547731 B CN 109547731B CN 201811512371 A CN201811512371 A CN 201811512371A CN 109547731 B CN109547731 B CN 109547731B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25808—Management of client data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25808—Management of client data
- H04N21/25816—Management of client data involving client authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/4508—Management of client data or end-user data
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Abstract
The embodiment of the invention provides a method and a system for displaying a video conference, wherein the method comprises the following steps: the second video network node server receives the video network protocol instruction from the first video network node server and analyzes the video network protocol instruction to obtain an analysis result, wherein the analysis result comprises terminal identification information of a target video network terminal and mode identification information of a target display mode; and the second video network node server determines a target video network terminal according to the terminal identification information and sends an analysis result to the target video network terminal according to the downlink communication link, and the target video network terminal is used for determining a target display mode according to the mode identification information and displaying video data of the video conference according to the target display mode. The embodiment of the invention realizes the automatic switching of the display mode of the video network terminal by the conversion operation of the display mode parameters, the analysis operation of the video network protocol instructions and the like, avoids the selection of the display mode by the manual operation of a remote controller by a user, and reduces the operation steps of the user.
Description
Technical Field
The invention relates to the technical field of video networking, in particular to a video conference display method and a video conference display system.
Background
The video network is a special network for transmitting high-definition video and a special protocol at high speed based on Ethernet hardware, is a higher-level form of the Internet and is a real-time network.
In the video conference based on the video network, more and more terminals for displaying video data of the video conference are provided, and the display screen of some terminals is larger, so that the video data of a plurality of participant terminals can be displayed; some terminals have smaller display screens, and if the video data of a plurality of participant terminals are displayed, the display area of each video data is too small, so that the user cannot easily view the video data.
For the situation that a plurality of terminals simultaneously display video data of the same video conference, the display mode of each terminal is adjusted by adopting a mode that a user operates a remote controller of each terminal so as to adapt to the size of a display screen of each terminal, and the operation steps of the user are increased.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide a method for presenting a video conference and a corresponding system for presenting a video conference, which overcome or at least partially solve the above problems.
In order to solve the above problem, an embodiment of the present invention discloses a method for displaying a video conference, where the method is applied to a video network, and the video network includes: a first and a second apparent networking node server, the first apparent networking node server in communication with the second apparent networking node server, the method comprising: the second video network node server receives a video network protocol instruction from the first video network node server, and the video network protocol instruction is obtained by converting the display mode parameters received in advance by the first video network node server; the second video network node server analyzes the video network protocol command to obtain an analysis result, wherein the analysis result comprises terminal identification information of a target video network terminal and mode identification information of a target display mode; and the second video network node server determines the target video network terminal according to the terminal identification information and sends the analysis result to the target video network terminal according to a downlink communication link configured for the target video network terminal, and the target video network terminal is used for determining the target display mode according to the mode identification information and displaying the video data of the video conference according to the target display mode.
Optionally, the video network communicates with the internet, the internet comprising an internet client, the internet client communicating with the first video network node server; the first video network node server is used for receiving the display mode parameters from the internet client.
Optionally, the display mode parameters include one or more of: the terminal identification information of the target video network terminal, the terminal type information of the target video network terminal, the terminal role information of the target video network terminal, and the mode identification information of the target display mode.
Optionally, the target display mode is any one of a single-screen display mode, a picture-in-picture display mode, and a multi-split-screen display mode.
Optionally, the target video networking terminal communicates with the internet client; and the target video network terminal is used for switching the initial display mode of the target video network terminal into the target display mode according to the mode identification information and sending the switching result to the internet client.
The embodiment of the invention also discloses a display system of the video conference, which is applied to the video network, and the video network comprises: a first and a second internet-of-view node servers, the first internet-of-view node server in communication with the second internet-of-view node server, the second internet-of-view node server comprising: the receiving module is used for receiving a video networking protocol instruction from the first video networking node server, and the video networking protocol instruction is obtained by converting display mode parameters received in advance by the first video networking node server; the analysis module is used for analyzing the video networking protocol command to obtain an analysis result, and the analysis result comprises terminal identification information of a target video networking terminal and mode identification information of a target display mode; and the transmission module is used for determining the target video network terminal according to the terminal identification information and sending the analysis result to the target video network terminal according to a downlink communication link configured for the target video network terminal, and the target video network terminal is used for determining the target display mode according to the mode identification information and displaying video data of the video conference according to the target display mode.
Optionally, the video network communicates with the internet, the internet comprising an internet client, the internet client communicating with the first video network node server; the first video network node server is used for receiving the display mode parameters from the internet client.
Optionally, the display mode parameters include one or more of: the terminal identification information of the target video network terminal, the terminal type information of the target video network terminal, the terminal role information of the target video network terminal, and the mode identification information of the target display mode.
Optionally, the target display mode is any one of a single-screen display mode, a picture-in-picture display mode, and a multi-split-screen display mode.
Optionally, the target video networking terminal communicates with the internet client; and the target video network terminal is used for switching the initial display mode of the target video network terminal into the target display mode according to the mode identification information and sending the switching result to the internet client.
The embodiment of the invention has the following advantages:
the embodiment of the invention is applied to the video network, and the video network can comprise a first video network node server and a second video network node server, wherein the first video network node server is communicated with the second video network node server.
In the embodiment of the invention, the first video network node server receives the display mode parameter of the target video network terminal, converts the display mode parameter into the video network protocol instruction, and then sends the video network protocol instruction to the second video network node server. And the second video network node server receives the video network protocol instruction, analyzes the video network protocol instruction to obtain an analysis result, determines a target video network terminal according to the terminal identification information of the target video network terminal in the analysis result, and sends the analysis result to the target video network terminal. And the target video network terminal receives the analysis result, determines a target display mode according to the mode identification information of the target display mode in the analysis result, and displays the video data of the video conference according to the target display mode.
The embodiment of the invention applies the characteristics of the video network, the first video network node server converts the display mode parameters of the target video network terminal into the video network protocol instruction, the second video network node server analyzes the video network protocol instruction and sends the analysis result to the target video network terminal, and the target video network terminal selects the target display mode according to the analysis result and displays the video data of the video conference by using the target display mode. The embodiment of the invention realizes the automatic switching of the display mode of the video network terminal by the conversion operation of the display mode parameters, the analysis operation of the video network protocol instruction and the like, avoids the selection of the display mode by the manual operation of a remote controller by a user, and reduces the operation steps of the user.
Drawings
FIG. 1 is a schematic networking diagram of a video network of the present invention;
FIG. 2 is a schematic diagram of a hardware architecture of a node server according to the present invention;
fig. 3 is a schematic diagram of a hardware structure of an access switch of the present invention;
fig. 4 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present invention;
FIG. 5 is a flowchart illustrating the steps of one embodiment of a method for presenting a video conference;
FIG. 6 is a schematic design diagram of a method for dynamically changing display modes based on a video network according to the present invention;
fig. 7 is a block diagram of a second video network node server in the embodiment of the video conference presentation system of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.
The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.
To better understand the embodiments of the present invention, the following description refers to the internet of view:
some of the technologies applied in the video networking are as follows:
network Technology (Network Technology)
Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face the potentially enormous video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network Circuit Switching (Circuit Switching), the internet of vision technology employs network Packet Switching to satisfy the demand of Streaming (translated into Streaming, and continuous broadcasting, which is a data transmission technology, converting received data into a stable and continuous stream, and continuously transmitting the stream, so that the sound heard by the user or the image seen by the user is very smooth, and the user can start browsing on the screen before the whole data is transmitted). The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.
Switching Technology (Switching Technology)
The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.
Server Technology (Server Technology)
The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.
Storage Technology (Storage Technology)
The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, and is directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.
Network Security Technology (Network Security Technology)
The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.
Service Innovation Technology (Service Innovation Technology)
The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.
Networking of the video network is as follows:
the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.
As shown in fig. 1, the video network is divided into an access network and a metropolitan network.
The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.
The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.
Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.
The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.
The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.
Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.
The access network part can form a unified video platform (circled part), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.
Video networking device classification
1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: servers, switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.
1.2 wherein the devices of the access network part can be mainly classified into 3 types: node servers, access switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.).
The specific hardware structure of each access network device is as follows:
a node server:
as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204.
The network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.
The access switch:
as shown in fig. 3, the network interface module (downstream network interface module 301, upstream network interface module 302), the switching engine module 303, and the CPU module 304 are mainly included.
Wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the data packet coming from the CPU module 204 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.
The switching engine module 303 polls all packet buffer queues, which in this embodiment of the present invention is divided into two cases:
if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) and obtaining the token generated by the code rate control module.
If the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.
The rate control module 208 is configured by the CPU module 204, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.
Ethernet protocol conversion gateway：
As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.
Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;
the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the video networking destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA of the ethernet coordination gateway, and the ethernet length or frame type, and sends the packet.
The other modules in the ethernet protocol gateway function similarly to the access switch.
A terminal:
the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.
1.3 devices of the metropolitan area network part can be mainly classified into 3 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 |
the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (e.g. various protocol packets, multicast data packets, unicast data packets, etc.), there are at most 256 possibilities, 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 types of different datagrams, and is 64 bytes if the type of the datagram is a variety of protocol packets, or is 1056 bytes if the type of the datagram is a unicast packet, but 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 a Label of Multi-Protocol Label switching (MPLS), and assuming that there are two connections between a device a and a device B, there are 2 labels for a packet from the device a to the device B, and 2 labels for a packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.
As shown in the following table, the data packet of the metro network mainly includes the following parts:
| DA | SA | Reserved | label (R) | Payload | CRC |
Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.
Based on the characteristics of the video network, one of the core concepts of the embodiment of the invention is provided, the first video network node server converts the display mode parameter into a video network protocol instruction, the second video network node server receives the video network protocol instruction, analyzes the video network protocol instruction, then sends an analysis result to a target video network terminal, and the target video network terminal determines a target display mode according to the analysis result and displays the video data of the video conference according to the target display mode.
Referring to fig. 5, a flowchart illustrating steps of an embodiment of a method for video conference presentation according to the present invention is shown, and the method may be applied to an internet of view, which may include a first internet of view node server and a second internet of view node server, wherein the first internet of view node server communicates with the second internet of view node server. The method specifically comprises the following steps:
in step 501, a second node server receives an internet protocol command from a first node server.
In the embodiment of the invention, the first video networking node server can be a video networking video conference management server and is used for managing the video conference and accessing the participant terminal of the video conference. The first video network node server can be divided into a webpage end (internet client) and a scheduling end (scheduling server) according to functions, wherein the webpage end can be located in the internet and used for generating display mode parameters and transmitting the display mode parameters to the scheduling end. The scheduling terminal can be located in the video network and used for converting the display mode parameters to obtain the video network protocol instruction.
In a preferred embodiment of the present invention, the display mode parameters may include, but are not limited to: the terminal identification information of the target video network terminal, the terminal type information of the target video network terminal, the terminal role information of the target video network terminal, the mode identification information of the target display mode and the like. In practical applications, an operator may perform an operation of generating display mode parameters on a web page side, for example, select a target video network terminal in a video network terminal list, correspondingly select terminal identification information, terminal type information, and terminal role information of the target video network terminal, and select a target display mode in the display mode list, correspondingly select mode identification information of the target display mode, and then use the selected terminal identification information, terminal type information, and terminal role information of the target video network terminal, and the mode identification information of the target display mode as the display mode parameters. After the webpage side generates the display mode parameters, the webpage side can transmit the display mode parameters to the scheduling side in the form of data packets.
It should be noted that, when the web page terminal selects the target display mode in the display mode list, the selected target display mode needs to be the display mode supported by the target video network terminal. Therefore, after the target video network terminal is selected, prompt information of whether the target video network terminal is supported or not appears in each display mode in the display mode list, and an operator can select the target display mode according to the prompt information.
The first video network node server receives the display mode parameter, specifically, a scheduling end in the first video network node server receives the display mode parameter, converts the display mode parameter into a video network protocol instruction supporting a video network protocol, the video network protocol instruction can support a video network transparent transmission protocol, and the first video network node server sends the video network protocol instruction to the second video network node server according to the video network transparent transmission protocol.
In the embodiment of the invention, the second video network node server can analyze the received video network protocol instruction according to the preset analysis rule. The parsing rule includes specific meanings corresponding to contents in fields in the video networking protocol command, for example, a character string in a first field "a bit … … b bit" of the video networking protocol command corresponds to terminal identification information of a target video networking terminal, and a character string in a second field "c bit … … d bit" of the video networking protocol command corresponds to mode identification information of a target display mode, and the embodiment of the present invention does not specifically limit requirements of the parsing rule. The terminal identification information is the only identity of the terminal of the video network in the video network, and can be a group of numbers or a group of character strings, and the like. The mode identification information is a unique identity of the display mode, and may be a group of numbers or a group of character strings, and the like.
The analysis result obtained by the second video network node server includes not only the terminal identification information of the target video network terminal and the mode identification information of the target display terminal, but also other attribute information of the target video network terminal, such as terminal type information, terminal role information, terminal position information, terminal configuration information, and the like.
In the embodiment of the invention, because the terminal identification information is the unique identity of the video network terminal in the video network, the second video network node server can search the terminal identification information which is the same as the terminal identification information in the analysis result in the video network terminal list (the video network terminal list can contain the corresponding relation between each video network terminal and the respective terminal identification information, and can also contain the network address information of each video network terminal in the video network, and the like), and the video network terminal corresponding to the searched terminal identification information is used as the target video network terminal. The target video network terminal may be a hardware device having a function of decoding video and audio of the video network, such as a PC, a set-top box, and the like, and the target video network terminal may have a display device itself, or may be connected to an external display device (for example, a television converts a compressed digital signal into television content and displays the television content on the television).
And after determining the target video network terminal, the second video network node server sends the analysis result to the target video network terminal according to the downlink communication link configured for the target video network terminal. In this practical application, the video network is a network with a centralized control function, and includes a main control server and a lower level network device, where the lower level network device includes a terminal, and one of the core concepts of the video network is that a table is configured for a downlink communication link of a current service by notifying a switching device by the main control server, and then a data packet is transmitted based on the configured table.
Namely, the communication method in the video network includes:
the main control server configures a downlink communication link of the current service; and transmitting the data packet of the current service sent by the source terminal to a target terminal (such as a target video network terminal) according to a downlink communication link.
In the embodiment of the present invention, configuring the downlink communication link of the current service includes: and informing the switching equipment related to the downlink communication link of the current service to allocate the table.
Further, transmitting according to the downlink communication link includes: the configured table is consulted, and the switching equipment transmits the received data packet through the corresponding port.
In particular implementations, the services include unicast communication services and multicast communication services. Namely, whether multicast communication or unicast communication, the core concept of the table matching-table can be adopted to realize communication in the video network.
As mentioned above, the video network includes an access network portion, in which the master server is a node server and the lower-level network devices include an access switch and a terminal.
For the unicast communication service in the access network, the step of configuring the downlink communication link of the current service by the master server may include the following steps:
and a substep S11, the main control server obtains the downlink communication link information of the current service according to the service request protocol packet initiated by the source terminal, wherein the downlink communication link information includes the downlink communication port information of the main control server and the access switch participating in the current service.
In the substep S12, the main control server sets a downlink port to which a packet of the current service is directed in a packet address table inside the main control server according to the downlink communication port information; and sending a port configuration command to the corresponding access switch according to the downlink communication port information of the access switch.
In sub-step S13, the access switch sets the downstream port to which the packet of the current service is directed in its internal packet address table according to the port configuration command.
For a multicast communication service (e.g., video conference) in the access network, the step of the master server obtaining downlink information of the current service may include the following sub-steps:
in the substep S21, the main control server obtains a service request protocol packet initiated by the target terminal and applying for the multicast communication service, wherein the service request protocol packet includes service type information, service content information and an access network address of the target terminal; wherein, the service content information includes a service number.
And a substep S22, the main control server extracts the access network address of the source terminal in a preset content-address mapping table according to the service number.
In the substep of S23, the main control server obtains the multicast address corresponding to the source terminal and distributes the multicast address to the target terminal; and acquiring the communication link information of the current multicast service according to the service type information and the access network addresses of the source terminal and the target terminal.
After receiving the analysis result, the target video network terminal can determine a corresponding target display mode according to the mode identification information in the analysis result, switch the current display mode or the initial display mode to the target display mode, and display the video data of the video conference by using the target display mode. The target display mode may be any one of a single-screen display mode, a picture-in-picture display mode, and a multi-split-screen display mode. Specifically, the single-screen display mode may display a picture of main video data of a video conference or a picture of video data of a current speaker of the video conference, etc., the picture-in-picture display mode may display a picture of video data of the speaker in a large window of a screen, display a picture of local video data in a small window of the screen, and the multi-split-screen display mode may be divided into left and right split screens, three split screens, four split screens, etc. The embodiment of the present invention does not specifically limit the type, display form, and the like of the target display mode.
In a preferred embodiment of the present invention, when the target video network terminal switches the current display mode or the initial display mode to the target display mode, a situation that the switching is unsuccessful may occur, and therefore, the target video network terminal may send a switching result (including successful switching or unsuccessful switching) to the web page side. And an operator at the webpage end can obtain the switching result of the target display modes of the target video network terminals.
Based on the above description about the embodiment of the video conference display method, a method for dynamically changing the display mode based on the video network is introduced below, as shown in fig. 6, a web page terminal sends display mode parameters to a video conference management server of the video network, the video conference management server of the video network converts the display mode parameters into video network protocol instructions and transmits the video network protocol instructions to a video network node server through a video network transparent transmission protocol, the video network node server transmits analysis results obtained by analyzing the video network protocol instructions to a video network terminal, the video network terminal changes the display mode into a display mode specified in the analysis results according to the analysis results, and the video network terminal returns the change results to the web page terminal.
The embodiment of the invention is applied to the video network, and the video network can comprise a first video network node server and a second video network node server, wherein the first video network node server is communicated with the second video network node server.
In the embodiment of the invention, the first video network node server receives the display mode parameter of the target video network terminal, converts the display mode parameter into the video network protocol instruction, and then sends the video network protocol instruction to the second video network node server. And the second video network node server receives the video network protocol instruction, analyzes the video network protocol instruction to obtain an analysis result, determines a target video network terminal according to the terminal identification information of the target video network terminal in the analysis result, and sends the analysis result to the target video network terminal. And the target video network terminal receives the analysis result, determines a target display mode according to the mode identification information of the target display mode in the analysis result, and displays the video data of the video conference according to the target display mode.
The embodiment of the invention applies the characteristics of the video network, the first video network node server converts the display mode parameters of the target video network terminal into the video network protocol instruction, the second video network node server analyzes the video network protocol instruction and sends the analysis result to the target video network terminal, and the target video network terminal selects the target display mode according to the analysis result and displays the video data of the video conference by using the target display mode. The embodiment of the invention realizes the automatic switching of the display mode of the video network terminal by the conversion operation of the display mode parameters, the analysis operation of the video network protocol instruction and the like, avoids the selection of the display mode by the manual operation of a remote controller by a user, and reduces the operation steps of the user.
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. 7, a block diagram of a second node server in an embodiment of a video conference presentation system according to the present invention is shown, where the system may be applied to a video network, and the video network may include a first node server of the video network and a second node server of the video network, where the first node server of the video network communicates with the second node server of the video network, and the second node server of the video network in the system may specifically include the following modules:
a receiving module 701, configured to receive an internet of view protocol instruction from the first internet of view node server, where the internet of view protocol instruction is obtained by converting a display mode parameter received in advance by the first internet of view node server.
The analysis module 702 is configured to analyze the video networking protocol instruction to obtain an analysis result, where the analysis result includes terminal identification information of a target video networking terminal and mode identification information of a target display mode;
a transmission module 703, configured to determine the target video networking terminal according to the terminal identification information, and send the analysis result to the target video networking terminal according to a downlink communication link configured for the target video networking terminal, where the target video networking terminal is configured to determine the target display mode according to the mode identification information, and display video data of a video conference according to the target display mode.
In a preferred embodiment of the present invention, the video network is in communication with the internet, the internet including an internet client in communication with the first video network node server; the first video network node server is used for receiving the display mode parameters from the internet client.
In a preferred embodiment of the invention, the display mode parameters include one or more of: the terminal identification information of the target video network terminal, the terminal type information of the target video network terminal, the terminal role information of the target video network terminal, and the mode identification information of the target display mode.
In a preferred embodiment of the present invention, the target display mode is any one of a single screen display mode, a picture-in-picture display mode, and a multi-split screen display mode.
In a preferred embodiment of the present invention, the target video networking terminal communicates with the internet client; and the target video network terminal is used for switching the initial display mode of the target video network terminal into the target display mode according to the mode identification information and sending the switching result to the internet client.
For the system embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
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 present invention provides a method and a system for displaying a video conference, which are introduced in detail above, and the present invention is described in detail by applying specific examples to explain the principle and the implementation of the present invention, and the descriptions of the above examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (6)
1. A video conference display method is applied to a video network, and the video network comprises the following steps: a first and a second node server, the first node server in communication with the second node server, the video network in communication with an internet, the internet including an internet client in communication with the first node server, the method comprising:
the first video network node server is used for receiving display mode parameters from the internet client;
the second video network node server receives a video network protocol instruction from the first video network node server, and the video network protocol instruction is obtained by converting the display mode parameters received in advance by the first video network node server;
the second video network node server analyzes the video network protocol command to obtain an analysis result, wherein the analysis result comprises terminal identification information of a target video network terminal and mode identification information of a target display mode, and the mode identification information is a unique identity identification of the display mode;
the second video network node server determines the target video network terminal according to the terminal identification information and sends the analysis result to the target video network terminal according to a downlink communication link configured for the target video network terminal;
the target video network terminal is communicated with the internet client, and is used for switching the initial display mode of the target video network terminal into the target display mode according to the mode identification information, displaying video data of a video conference according to the target display mode, and sending a switching result to the internet client.
2. The method of claim 1, wherein the display mode parameters include one or more of the following: the terminal identification information of the target video network terminal, the terminal type information of the target video network terminal, the terminal role information of the target video network terminal, and the mode identification information of the target display mode.
3. The method of claim 2, wherein the target display mode is any one of a single-screen display mode, a picture-in-picture display mode, and a multi-split-screen display mode.
4. A video conference display system is characterized in that the system is applied to a video network, and the video network comprises: a first video networking node server and a second video networking node server, the first video networking node server communicating with the second video networking node server, the video networking communicating with the internet, the internet including an internet client, the internet client communicating with the first video networking node server, the first video networking node server for receiving display mode parameters from the internet client; the second video networking node server comprises:
the receiving module is used for receiving an internet of video protocol instruction from the first internet of video node server, and the internet of video protocol instruction is obtained by converting the display mode parameters received in advance by the first internet of video node server;
the analysis module is used for analyzing the video networking protocol command to obtain an analysis result, wherein the analysis result comprises terminal identification information of a target video networking terminal and mode identification information of a target display mode, and the mode identification information is a unique identity of the display mode;
the transmission module is used for determining the target video network terminal according to the terminal identification information and sending the analysis result to the target video network terminal according to a downlink communication link configured for the target video network terminal;
the target video network terminal is used for switching the initial display mode of the target video network terminal into the target display mode according to the mode identification information, displaying video data of a video conference according to the target display mode and sending a switching result to the internet client.
5. The video conference presentation system of claim 4, wherein said display mode parameters comprise one or more of: the terminal identification information of the target video network terminal, the terminal type information of the target video network terminal, the terminal role information of the target video network terminal, and the mode identification information of the target display mode.
6. The system for displaying a video conference as claimed in claim 5, wherein the target display mode is any one of a single-screen display mode, a picture-in-picture display mode, and a multi-split-screen display mode.
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| CN110139061B (en) * | 2019-04-04 | 2021-07-20 | 视联动力信息技术股份有限公司 | Video stream screen display method and device |
| CN111222008A (en) * | 2019-12-24 | 2020-06-02 | 视联动力信息技术股份有限公司 | Terminal information management method and device, electronic equipment and medium |
| CN111131754A (en) * | 2019-12-25 | 2020-05-08 | 视联动力信息技术股份有限公司 | Control split screen method and device of conference management system |
| CN111131757B (en) * | 2019-12-27 | 2022-12-23 | 视联动力信息技术股份有限公司 | Video conference display method, device and storage medium |
| CN114923078A (en) * | 2022-06-07 | 2022-08-19 | 安徽宝信信息科技有限公司 | Comprehensive display device for temporary meeting and use method thereof |
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