CN111478884B

CN111478884B - Method, device and storage medium for data transmission among different video networks

Info

Publication number: CN111478884B
Application number: CN202010153661.3A
Authority: CN
Inventors: 秦鹏; 张新博; 李阔; 王艳辉
Original assignee: Visionvera Information Technology Co Ltd
Current assignee: Visionvera Information Technology Co Ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2022-11-15
Anticipated expiration: 2040-03-06
Also published as: CN111478884A

Abstract

The embodiment of the invention provides a method, a device and a storage medium for data transmission among different video networks, wherein the method comprises a bridge server, the bridge server is simultaneously in communication connection with a first video network and a second video network, the method is applied to the bridge server and comprises the following steps: determining a data sending terminal in a first video network and at least one data receiving terminal in a second video network; establishing a first data channel corresponding to the data sending terminal and a second data channel corresponding to at least one data receiving terminal according to the attribute of the data sending terminal; receiving a plurality of data packets sent by the data sending terminal through a first data channel; and transmitting the plurality of data packets to each of at least one data receiving terminal through a second data channel. By adopting the technical scheme of the invention, the communication among different video networks can be realized.

Description

Method, device and storage medium for data transmission among different video networks

Technical Field

The present invention relates to the field of video networking technologies, and in particular, to a method, an apparatus, and a storage medium for data transmission between different video networks.

Background

With the continuous development of the video networking technology, the coverage field of the video networking is more and more extensive, and thus, in order to meet the market demand, various video networking is appeared. Thus, in some regions one type of video network (denoted as a first video network) is used and in other regions another type of video network (denoted as a second video network) is used. The first and second video networks may be incompatible (e.g., the new and old video networks each use a different number of video network numbers) such that the different types of video networks may not be able to communicate with each other.

Disclosure of Invention

In view of the above problems, a method, an apparatus and a storage medium for data transmission between different video networks according to embodiments of the present invention are proposed to overcome or at least partially solve the above problems.

In a first aspect of an embodiment of the present invention, a method for data transmission between different video networks is disclosed, including a bridge server, where the bridge server is in communication connection with a first video network and a second video network at the same time, and the method is applied to the bridge server, and includes:

determining a data sending terminal in the first video network and at least one data receiving terminal in the second video network;

according to the attribute of the data sending terminal, a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal are established;

receiving a plurality of data packets sent by the data sending terminal through the first data channel;

and transmitting the plurality of data packets to each of the at least one data receiving terminal through the second data channel.

Optionally, establishing, according to the attribute of the data sending terminal, a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal, includes:

determining the participation role of the data sending terminal in the video conference;

and establishing a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal according to the participant role.

Optionally, determining a participant role of the data sending terminal in the video conference includes:

receiving conference control information sent by a conference control terminal in the video conference, and determining a conference role of the data sending terminal in the video conference according to the conference control information;

the method further comprises the following steps:

and when the change of the participation role of the data sending terminal is determined, resetting a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal according to the changed participation role.

Optionally, after receiving, through the first data channel, a plurality of data packets sent by the data sending terminal, the method further includes:

caching the data packets to a preset cache queue;

transmitting the plurality of data packets to each of the at least one data receiving terminal through the second data channel, respectively, including:

and at preset time intervals, sequentially sending the plurality of data packets in the buffer queue to each data receiving terminal in the at least one data receiving terminal through the second data channel.

Optionally, after receiving a plurality of data packets sent by the data sending terminal through the first data channel, the method further includes:

transforming the byte length of the packet header of each data packet in the plurality of data packets to obtain a plurality of target data packets adapted to the second video network;

and transmitting the plurality of target data packets to each of the at least one data receiving terminal through the second data channel.

Optionally, the first video network is a 16-bit video network and the second video network is a 64-bit video network; or, the first video network is a 64-bit video network, and the second video network is a 16-bit video network.

In a second aspect of the embodiments of the present invention, there is provided a device for data transmission between different video networks, including a bridge server, where the bridge server is in communication connection with a first video network and a second video network at the same time, and the device is applied to the bridge server, and includes:

the terminal determining module is used for determining a data sending terminal in the first video network and at least one data receiving terminal in the second video network;

the channel establishing module is used for establishing a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal according to the attribute of the data sending terminal;

a data receiving module, configured to receive, through the first data channel, a plurality of data packets sent by the data sending terminal;

and the data sending module is used for sending the plurality of data packets to each data receiving terminal in the at least one data receiving terminal through the second data channel.

Optionally, the channel establishing module includes:

a conference role determination unit, configured to determine a conference role of the data sending terminal in the video conference;

and the channel establishing unit is used for establishing a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal according to the participation role.

Optionally, the participating role determination unit includes:

a conference control information receiving subunit, configured to receive conference control information sent by a conference control terminal in the video conference;

the role determining subunit is used for determining the conference participation role of the data sending terminal in the video conference according to the conference control information;

the device further comprises:

and the channel resetting module is used for resetting a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal according to the changed participating roles when the participating roles of the data sending terminal are determined to be changed.

Optionally, the apparatus further comprises:

the data caching module is used for caching the data packets into a preset caching queue;

the data sending module is specifically configured to send, at preset intervals, the plurality of data packets in the buffer queue to each of the at least one data receiving terminal in sequence through the second data channel.

Optionally, the apparatus further comprises:

the conversion module is used for converting the byte length of the packet header of each data packet in the plurality of data packets to obtain a plurality of target data packets adapted to the second video network;

the data sending module is specifically configured to send the multiple target data packets to each data receiving terminal in the at least one data receiving terminal through the second data channel.

Optionally, the first video network is a 16-bit video network and the second video network is a 64-bit video network; or the first video network is a 64-bit video network, and the second video network is a 16-bit video network

In a third aspect of the embodiments of the present invention, there is provided an apparatus, including:

one or more processors; and

one or more machine readable media having instructions stored thereon, which when executed by the one or more processors, cause the apparatus to perform a method of data transfer between different video networks as described in one or more of the first aspects.

In a fourth aspect of the embodiments of the present invention, a computer-readable storage medium is provided, which stores a computer program for causing a processor to execute the method for data transmission between different video networks according to the first aspect.

The embodiment of the invention has the following advantages:

by applying the characteristics of the video network, the bridging server can establish a first data channel corresponding to the data sending terminal and a second data channel corresponding to at least one data receiving terminal according to the attributes of the data sending terminal. Therefore, the bridge server can communicate with the data sending terminal in the first video network through the first data channel, can communicate with the data receiving terminal in the second video network through the second data channel, and the second data channel can send the data packet received by the first data channel to the second video network, so that the data sending terminal in the first video network and the data receiving terminal in the second video network realize data transmission, further the communication between the first video network and the second video network is realized, and the defect that two different video networks can not intercommunicate information is overcome.

Drawings

FIG. 1 is a schematic diagram of a video networking 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 architecture 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 diagram of an application environment of a method for data transmission between different video networks according to an embodiment of the present invention;

FIG. 6 is a flowchart illustrating steps in a method for data transmission between different video networks according to an embodiment of the present invention;

fig. 7 is a block diagram of an apparatus for data transmission between different video networks according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.

The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.

To enable those skilled in the art to better understand the embodiments of the present invention, the following description is given of 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, and realizes the seamless connection of a whole network switching type virtual circuit and a 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 network and the unified video platform is different from the traditional server, the streaming media transmission of the video network and the unified video platform is established on the basis of connection orientation, the data processing capability of the video network and the unified video platform is irrelevant to 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 eradicates the network security problem disturbing the Internet from the structure by the modes of independent admission control of each service, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, stops 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, but also connected with a single user, a private network user or the sum of one network. 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 controlled by a hierarchical centralized way, and the network controlled by the node server and the metropolitan area server can be in various structures such as a tree, a star, a ring and the like.

The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.

Video networking device classification

1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: servers, switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.

1.2 wherein the devices of the access network part can be mainly classified into 3 types: node servers, access switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.).

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

a node server:

as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;

the packets coming from the network interface module 201, the cpu module 203 and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) The port send buffer is not full; 2) The queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.

The access switch:

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

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

The switching engine module 303 polls all packet buffer queues, which in this embodiment of the present invention is divided into two cases:

if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) The port send buffer is not full; 2) The queued packet counter is greater than zero; 3) Obtaining a token generated by a code rate control module;

if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) The port send buffer is not full; 2) The queued 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 (2 byte) and enters the corresponding receiving buffer, otherwise, discards it;

the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA of the ethernet protocol gateway, and the ethernet length or frame type, and sends the packet.

The other modules in the ethernet protocol gateway function similarly to the access switch.

A terminal:

the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.

1.3 devices of the metropolitan area network part can be largely 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 byte, 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 the types of different datagrams, 64 bytes if various protocol packets, 32+1024=1056 bytes if single-multicast data packets, and certainly 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 0x0001. 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 as follows: 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 data transmission method is characterized in that one of the technical concepts of the invention is provided by combining the characteristics of the video network, when the cross-network video network service is carried out in the video network, the data transmission terminal and the data receiving terminal in two different video networks can be respectively determined, the data channels corresponding to the distribution of the data transmission terminal and the data receiving terminal are respectively established in the bridging server, and the data transmission of the terminals in the different video networks is realized through the established data channels.

Referring to fig. 5, a diagram of an application environment for data transmission between different video networks according to the present invention is shown, as shown in fig. 5, including a first video network and a second video network, and a bridging server 501 may be simultaneously in communication connection with the first video network and the second video network to bridge data between the first video network and the second video network. Among them, a plurality of terminals 502 may be included in the first video network, and a plurality of terminals 503 may be included in the second video network. The

terminals

502 and 503 may be smart phones, computers, monitoring devices, set-top boxes, etc.

In practice, the first and second video networks are two different types of video networks, for example, in one practical case, the first and second video networks are video networks belonging to two different locales. In yet another practical case, the first and second video networks are two video networks having different numbers of digit video network numbers. In this case, the first view network may be a 16-bit view network and the second view network a 64-bit view network, or the first view network is a 64-bit view network and the second view network is a 16-bit view network.

The 16-bit video network is a video network developed in the field of video networks, the number of video network numbers which can be accommodated in the video network is 256, the number of bits of each video network number is 16 bits, and the byte length of each video network number is 16 bits. However, as the application field of the video network is continuously expanded, the demand of the video network number is increased greatly, and therefore, a 64-bit video network is developed, and the number of the video network number in the 64-bit video network reaches 2 ⁶⁴ In a 64-bit internet of view, each internet of view number is 64 bits in byte length.

The video networking service scenario applicable to the embodiment of the invention is as follows: video conference service, monitoring and scheduling service, and video telephone service. Of course, with the expansion of the video networking service, the service may not be limited to the above service.

The method for data transmission between different video networks according to the present invention will be described in detail with reference to the application environment shown in fig. 5.

Referring to fig. 6, a flowchart of steps of a method for data transmission between different video networks according to an embodiment of the present invention is shown, where the method may be used in a bridge server, that is, the bridge server may serve as an execution subject, and specifically may include the following steps:

step 601, determining a data sending terminal in the first video network and at least one data receiving terminal in the second video network.

In the embodiment of the invention, when the video networking service is started, the data sending terminal can be determined in the first video networking according to the specific service requirement of the video networking service, and the data receiving terminal can be determined in the second video networking. For example, taking monitoring and scheduling services as an example, the service requirement is that a scheduling terminal needs to view a monitoring video, so that a monitoring device located in a first video network can be determined as a data sending terminal, and a scheduling terminal located in a second video network can be determined as a data receiving terminal, so that in an actual monitoring and scheduling service, the scheduling terminal can receive and view audio and video data collected by the monitoring device.

Further exemplarily, in combination with the application environment shown in fig. 5 as an example, if the video networking service is a video telephone, the terminal 502 in the first video networking may be used as a data sending terminal, and the terminal 503 in the second video networking may be used as a data receiving terminal, so that the terminal 502 and the terminal 503 perform video telephone.

According to the above, the data sending terminal is a terminal that needs to send service data in the video networking service, and the data receiving terminal is a terminal that needs to receive the service data sent by the data sending terminal in the video networking service. The service data may be audio data, video data, picture data, or audio/video data according to a specific video networking service.

Step 602, according to the attribute of the data sending terminal, establishing a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal.

In the embodiment of the present invention, the attribute of the data sending terminal may be understood as an attribute of the data sending terminal in the currently performed video networking service, and the type of data sent by the data sending terminal may be different according to the different attributes.

During specific implementation, the type of service data sent by the data sending terminal can be determined according to the attribute of the data sending terminal, and then a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal are established according to the type of the service data. Thus, the established first data channel and second data channel can be matched with the attribute of the data transmitting terminal.

The first data channel may be understood as a data receiving channel, and the second data channel may be understood as a data transmitting channel. The second data channel may have a communication association relationship with the first data channel, that is, data transmission may be performed between the second data channel and the first data channel. In this way, the first data channel may receive the service data sent by the data sending terminal, and the second data channel may communicate with the data receiving terminal in the second video network to send the service data to the data receiving terminal. Further, communication between two different video networks is achieved.

In a specific embodiment, the step S602 is described with reference to a video networking service scenario of a video conference, and the step may specifically include the following steps:

step S6021: and determining the participant role of the data sending terminal in the video conference.

The participating role can be understood as what role the data transmission terminal is in the video conference, that is, the role of the user using the data transmission terminal in the video conference. In general, in a video conference conducted in a video network, participant roles may include a chairman role, a speaker role, an attendee role, and a general attendee role. Of course, in practice, other roles may be included with the meeting requirements of the video conference, and the present invention is not limited thereto.

The chairman role can transmit conference requirements in the whole video conference, the speaker role can speak in the video conference, and the conference control personnel role can control the video conference, for example, speakers can be switched, and the roles of general participants can only watch audios and videos of the speakers and the chairman in the video conference, or can also watch videos of other participants, but cannot send own audio.

Step S6022: and establishing a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal according to the participation role.

In this embodiment, when the participant role is a speaker role, the first data channel corresponding to the data sending terminal, which is established by the bridge server, may be an audio/video data transmission channel or an audio data transmission channel for transmitting the audio of the data sending terminal, and accordingly, the second data channel may also be an audio/video data transmission channel or an audio data transmission channel for transmitting the audio of the data sending terminal.

When the participant role is the chairman role, the first data channel corresponding to the data sending terminal, which is established by the bridging server, may be an audio/video data transmission channel for transmitting audio/video data (audio and video transmission) of the data sending terminal, and accordingly, the second data channel may also be an audio/video data transmission channel.

When the participant role is a general participant, the first data channel corresponding to the data sending terminal, which is established by the bridge server, may be a video data transmission channel for transmitting video data of the data sending terminal, and accordingly, the second data channel may also be a video data transmission channel.

When the participant role is the role of the conference control personnel, the first data channel corresponding to the data sending terminal, which is established by the bridge server, may be a control data transmission channel for transmitting control data of the data sending terminal, and accordingly, the second data channel may also be a control data transmission channel. In this case, the data receiving terminal may be a terminal that needs to be controlled by the data sending terminal, for example, the data receiving terminal is a certain monitoring device located in the second video network in the video conference, and the data sending terminal may send an instruction to the monitoring device in the video conference to call the monitoring video of the monitoring device, so as to analyze the monitoring video in the video conference.

In one specific implementation, at the beginning of a video conference, the bridge server may initialize a communication link, which may be understood as a link dedicated to the video conference, through which a plurality of terminals participating in the video conference may participate in the video conference. Wherein the communication link of a video conference may comprise a plurality of data channels, such that upon establishing the first data channel and the second data channel, the first data channel and the second data channel may be established in the initialized communication link.

In a specific implementation manner, when determining a participant role of the data sending terminal in a video conference, the method may include the following steps:

and receiving conference control information sent by a conference control terminal in the video conference, and determining a conference role of the data sending terminal in the video conference according to the conference control information.

In this embodiment, the conference control terminal may be in communication connection with the bridge server, and may be a terminal that controls the video conference, and the conference control terminal may be at least used to switch speakers in the video conference. When the conference control terminal performs the conference control operation once, the conference control terminal can record conference control information of the conference control operation correspondingly.

Wherein, the conference control information at least comprises: and the role information of each terminal in the video conference. In practice, the conference control information may also include other information related to the conference control operation, such as operation time, video conference identifier, number of participating terminals, and the like, and the conference control information is not limited in the present invention.

During specific implementation, the role of the data sending end in the video conference can be determined according to the role information of each terminal in the video conference. Thus, in practice, the bridge server may establish the first data channel and the second data channel according to the conference control information sent by the conference control terminal.

Further, in order to make the established first data channel and second data channel always keep being adapted to the attribute of the data sending terminal in the whole course of the video conference, the method may further include the following steps:

step S6023: and when the change of the participation role of the data sending terminal is determined, resetting a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal according to the changed participation role.

In this embodiment, the bridge server may record the participant roles of the data sending terminal in the video conference. The conference control terminal can actively send the recorded conference control information to the bridge server when controlling the video conference each time, and the bridge server can determine whether the conference role of the data sending terminal changes according to the recorded conference role and the conference control information received at the time when receiving the conference control information each time.

For example, if the participant role of the data transmission terminal recorded by the bridge server n is a general participant role, and if it is determined that the participant role of the data transmission terminal at n +1 th time is changed to the talker role according to the conference control information at n +1 th time, it may be determined that the participant role of the data transmission terminal is changed.

When it is determined that the role of the data sending terminal participating in the conference is changed, the established first data channel and the established second data channel may be reset. Specifically, the third data channel and the fourth data channel with the data sending terminal may be reestablished, and the first data channel and the second data channel may be closed, that is, the new third data channel replaces the first data channel, and the new fourth data channel replaces the second data channel. The channel address of the third data channel after reset may be different from the address of the first data channel, and the channel address of the fourth data channel obtained after reset may also be different from the channel address of the second data channel.

For example, when the participant role of the data transmission terminal is changed from the talker role to the general participant role, the first data path 001 corresponding to the data transmission terminal may be reset to the third data path 003, and the second data path 002 may be reset to the fourth data path 004. Wherein the first data channel 001 is used for audio-video mixed data transmission, and the third data channel 003 is only used for video data transmission. The channel address of the first data channel 001 and the channel address of the third data channel 003 may be different, and similarly, the channel address of the second data channel 002 and the channel address of the fourth data channel 004 may also be different.

Through the embodiment, the bridge server can flexibly configure the data channel according to the participation role of the data sending terminal in the video conference in the process of the video conference, so that the normal running of the video conference is ensured.

Step 603, receiving a plurality of data packets sent by the data sending terminal through the first data channel.

In this embodiment, since the bridge server establishes the first data channel corresponding to the data sending terminal, the first data channel is equivalent to a data transmission channel between the data sending terminal and the bridge server in the first video network, and the bridge server may receive the plurality of data packets sent by the data sending terminal through the first data channel.

The types of the plurality of data packets may be adapted to the attribute of the data transmission terminal, that is, the types of the data packets may be adapted to the participant hue of the data transmission terminal. For example, the type of the data packet may be an audio type if the role is a speaker, an audio/video mixed data type if the role is a chairman, or a control instruction type if the role is a conference control person.

Step 604, sending the plurality of data packets to each data receiving terminal of the at least one data receiving terminal through the second data channel.

In this embodiment, after receiving the multiple data packets through the first data channel, the bridge server may directly forward the multiple data packets. Specifically, the bridge server may directly send the plurality of data packets to the second data channel, and then send the plurality of data packets to each data receiving terminal through the second data channel.

When a plurality of data packets are sent to each data receiving terminal through the second data channel, the data packets are sent in a multicast mode, that is, the data packets are sent to each data receiving terminal in the second data channel in a multicast mode.

By adopting the technical scheme of the invention, the bridge server can be communicated with the data sending terminal in the first video network through the first data channel, can be communicated with the data receiving terminal in the second video network through the second data channel, and the second data channel can send the data packet received by the first data channel to the second video network, so that the data sending terminal in the first video network and the data receiving terminal in the second video network realize data transmission, further the communication between the first video network and the second video network is realized, and the defect that two different video networks can not be communicated with each other is overcome.

In one embodiment, the received data packet may be transformed so that the data packet can be successfully parsed after being received by the data receiving end. Specifically, after receiving a plurality of data packets through the first data channel, the method may further include the step of converting the data packets:

and transforming the byte length of the packet header of each data packet in the plurality of data packets to obtain a plurality of target data packets adapted to the second video network.

In this embodiment, each data packet includes a packet header, and the packet header may include a data type of the data packet, a source video network number (video network number of a data sending terminal), a transmission protocol used, and the like, where the byte lengths of the source video network number carried by the packet header in the data packet are different due to different network bit numbers of the first video network and the second video network, and the byte lengths of the packet headers of the data packet generated in the first video network and the data packet generated in the second video network are different due to different byte lengths of the source video network number.

In specific implementation, in order to enable the data packet to be successfully analyzed by the data receiving terminal in the second video network, the bridge server may transform the byte length of the source video network number in the packet header of the data packet, so as to obtain the target data packet after length transformation.

In a specific implementation, when the byte length of the packet header of the data packet is converted, if the first view network is a 16-bit view network and the second view network is a 64-bit view network, the byte length of the packet header of the data packet is 16 bits, so that the byte length of the source view network number of the packet header of the data packet can be converted from 16 bits to 64 bits, and the byte length of the source view network number of the packet header of the obtained target data packet is 64 bits. If the first video network is a 64-bit video network and the second video network is a 16-bit video network, the byte length of the source video network number of the header of the data packet is 64 bits, so that the byte length of the header of the data packet can be converted from 64 bits to 16 bits, and the byte length of the source video network number of the header of the target data packet is 16 bits.

Accordingly, the bridge server may transmit a plurality of destination data packets to each of the at least one data receiving terminal through the second data channel.

In another embodiment, in order to improve the uniformity of data transmission, reduce the network bandwidth pressure, and avoid network data congestion, after receiving a plurality of data packets sent by the data sending terminal through the first data channel, the method may include the following steps:

and buffering the plurality of data packets to a preset buffer queue.

In the video network, the determined number of the data sending terminals can be multiple, and then multiple first data channels can be established. In this case, each first data channel may correspond to a respective buffer queue, that is, one buffer queue may be dedicated to buffering a plurality of data packets received by the first data channel.

In specific implementation, the multiple data packets may be buffered in the buffer queue according to a sequence of times corresponding to timestamps included in the multiple data packets. Therefore, the plurality of data packets buffered in the buffer queue can be arranged according to the generation time sequence.

Accordingly, when the plurality of data packets are transmitted through the second data channel, the following steps may be performed:

step S604': and at preset time intervals, sequentially sending the plurality of data packets in the buffer queue to each data receiving terminal in the at least one data receiving terminal through the second data channel.

In this embodiment, the preset time may be set according to actual requirements, for example, set to 0.1 second or a time interval shorter than the preset time. In specific implementation, every preset time interval, a data packet arranged in the cache queue before the data packet is dequeued, enters a second data channel, and is sent to a data receiving end through the second data channel. Therefore, the data packets in the second data channel are all constant-speed and continuous, and the quality of the data packets processed by the data receiving terminal can be improved. For example, when the data packet is an audio/video data packet, multiple data packets can be received at a constant speed, and then decoding can be performed uniformly, so that video pictures and audio can obtain higher fluency, and user experience can be improved.

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 an embodiment of an apparatus for data transmission between different video networks according to the present invention is shown, wherein a bridge server is connected between a first video network and a second video network, the bridge server is simultaneously connected to the first video network and the second video network in a communication manner, the number of network bits of the first video network is different from that of the second video network, and the apparatus is applied to the bridge server, and includes:

a terminal determining module 701, configured to determine a data sending terminal in the first video network and at least one data receiving terminal in the second video network;

a channel establishing module 702, configured to establish, according to an attribute of the data sending terminal, a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal;

a data receiving module 703, configured to receive, through the first data channel, a plurality of data packets sent by the data sending terminal;

a data sending module 704, configured to send the plurality of data packets to each data receiving terminal of the at least one data receiving terminal through the second data channel.

In an optional embodiment, the channel establishing module may specifically include the following units:

the participant role determining unit is used for determining participant roles of the data sending terminal in the video conference;

In an optional embodiment, the participant role determination unit may specifically include the following sub-units:

in an optional embodiment, the apparatus may further specifically include the following modules:

In an alternative embodiment, the apparatus may further include the following modules:

In an alternative embodiment, the first video network may be a 16-bit video network and the second video network may be a 64-bit video network; alternatively, the first video network may be a 64-bit video network and the second video network may be a 16-bit video network.

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

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus 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 the preferred embodiment and all changes and modifications that fall within the true scope of the embodiments of the present invention.

Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are 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 a … …" does not exclude the presence of another identical element in a process, method, article, or terminal apparatus that comprises the element.

The method, the apparatus and the storage medium for data transmission between different video networks provided by the present invention are introduced in detail above, and a specific example is applied in the present document to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A method for data transmission between different video networks is characterized in that the method comprises a bridge server, the bridge server is simultaneously in communication connection with a first video network and a second video network, and the method is applied to the bridge server and comprises the following steps:

according to the attribute of the data sending terminal, establishing a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal;

transmitting the plurality of data packets to each of the at least one data receiving terminal through the second data channel;

the establishing a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal according to the attribute of the data sending terminal includes:

determining the type of the service data sent by the data sending terminal according to the attribute of the data sending terminal, and establishing a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal.

2. The method according to claim 1, wherein establishing a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal according to the attribute of the data sending terminal comprises:

and establishing a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal according to the participation role.

3. The method of claim 2, wherein determining the participant role of the data sending terminal in the video conference comprises:

the method further comprises the following steps:

4. The method of claim 1, wherein after receiving a plurality of data packets sent by the data sending terminal through the first data channel, the method further comprises:

caching the plurality of data packets to a preset cache queue;

5. The method of claim 1, wherein after receiving a plurality of data packets sent by the data sending terminal through the first data channel, the method further comprises:

6. The method of any of claims 1-5, wherein the first video network is a 16-bit video network and the second video network is a 64-bit video network; or, the first video network is a 64-bit video network, and the second video network is a 16-bit video network.

7. An apparatus for data transmission between different video networks, comprising a bridge server, wherein the bridge server is simultaneously connected with a first video network and a second video network, the number of network bits of the first video network is different from the number of network bits of the second video network, the apparatus is applied to the bridge server, and comprises:

determining the type of service data sent by the data sending terminal according to the attribute of the data sending terminal, and establishing a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal;

8. The apparatus of claim 7, wherein the channel establishing module comprises:

and the channel establishing unit is used for establishing a first data channel corresponding to the data sending terminal and a second data channel corresponding to the at least one data receiving terminal according to the participant role.

9. An 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 a method of data transfer between different video networks according to one or more of claims 1-6.

10. A computer-readable storage medium, characterized in that it stores a computer program that causes a processor to execute the method for data transmission between different video networks according to any of claims 1 to 6.