CN110392227B - Data processing method, device and storage medium - Google Patents
Data processing method, device and storage medium Download PDFInfo
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- CN110392227B CN110392227B CN201910538708.5A CN201910538708A CN110392227B CN 110392227 B CN110392227 B CN 110392227B CN 201910538708 A CN201910538708 A CN 201910538708A CN 110392227 B CN110392227 B CN 110392227B
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Abstract
The invention provides a data processing method, a data processing device and a storage medium. The data processing method comprises the following steps: if the whiteboard server receives a first internet protocol data packet sent by the whiteboard client, converting the first internet protocol data packet into a first video networking protocol data packet; the whiteboard server sends the first video networking protocol data packet to a corresponding video networking terminal through the video networking server; if the white board server receives a second video networking protocol data packet sent by the video networking terminal through the video networking server, converting the second video networking protocol data packet into a second internet protocol data packet; and the whiteboard server sends the second internet protocol data packet to the whiteboard client. The invention realizes the bidirectional data sharing between the whiteboard client and the video network client, improves the application universality of the electronic whiteboard and optimizes the video network service.
Description
Technical Field
The present invention relates to the field of video networking technologies, and in particular, to a data processing method, apparatus, and storage medium.
Background
With the rapid development of network technologies, communication such as video conferences and video teaching is widely popularized in the aspects of life, work, learning and the like of users.
In video teaching or video conference, an electronic whiteboard can be generally adopted, a teaching person of the video teaching or a speaker of the video conference edits pictures and the like on the electronic whiteboard, and a taught person of the video teaching or a participant of the video conference can watch the contents on the electronic whiteboard.
However, in the prior art, only the content on the electronic whiteboard can be transmitted to the viewer in a single direction, and only the electronic whiteboard can be applied to the internet for video teaching or video conference.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide a data processing method, apparatus and storage medium that overcome or at least partially solve the above problems.
In a first aspect, the embodiment of the invention discloses a data processing method, which is applied to a video network, wherein a white board client is in communication connection with a white board server, the white board server is in communication connection with a video network server, and the video network server is in communication connection with a video network terminal; the method comprises the following steps:
if the whiteboard server receives a first internet protocol data packet sent by the whiteboard client, converting the first internet protocol data packet into a first video networking protocol data packet;
the whiteboard server sends the first video networking protocol data packet to a corresponding video networking terminal through the video networking server;
if the white board server receives a second video networking protocol data packet sent by the video networking terminal through the video networking server, converting the second video networking protocol data packet into a second internet protocol data packet;
and the whiteboard server sends the second internet protocol data packet to the whiteboard client.
Optionally, the first internet protocol data packet is packed with first shared data; the step of converting the first internet protocol data packet into a first video internet protocol data packet comprises: analyzing the first internet protocol data packet and extracting the first shared data; and adding a first video networking protocol header to the first shared data, and packaging the first shared data into a first video networking protocol data packet based on a video networking protocol.
Optionally, the second video networking protocol data packet is packed with second shared data; the step of converting the second video networking protocol data packet into a second internet protocol data packet comprises: analyzing the second video networking protocol data packet and extracting the second shared data; and adding a second Internet protocol packet header to the second shared data, and packaging the second shared data into a second Internet protocol data packet based on an Internet protocol.
Optionally, before the step of adding a second internet protocol header to the second shared data and encapsulating the second shared data into a second internet protocol data packet based on an internet protocol, the method further includes: converting the second shared data into data in a JSON format; the step of adding a second ip header to the second shared data and encapsulating the second shared data into a second ip data packet based on an ip includes: and adding a second internet protocol packet header for the JSON format data, and packaging the JSON format data into a second internet protocol data packet based on an internet protocol.
Optionally, the step of sending to the corresponding video network terminal via the video network server includes: and sending the downlink communication link configured for the corresponding video networking terminal to the corresponding video networking terminal through the video networking server.
In a second aspect, the embodiment of the invention discloses a data processing device, which is applied to a video network, wherein a white board client is in communication connection with a white board server, the white board server is in communication connection with a video network server, and the video network server is in communication connection with a video network terminal; the whiteboard server includes:
the first conversion module is used for converting a first internet protocol data packet into a first video internet protocol data packet if the first internet protocol data packet sent by the whiteboard client is received;
the first sending module is used for sending the first video networking protocol data packet to a corresponding video networking terminal through the video networking server;
the second conversion module is used for converting a second video networking protocol data packet into a second internet protocol data packet if the second video networking protocol data packet sent by the video networking terminal through the video networking server is received;
and the second sending module is used for sending the second internet protocol data packet to the whiteboard client.
Optionally, the first internet protocol data packet is packed with first shared data; the first conversion module includes: the first analysis unit is used for analyzing the first internet protocol data packet and extracting the first shared data; and the first packaging unit is used for adding a first video networking protocol packet header for the first shared data and packaging the first shared data into a first video networking protocol data packet based on a video networking protocol.
Optionally, the second video networking protocol data packet is packed with second shared data; the second conversion module includes: the second analysis unit is used for analyzing the second video networking protocol data packet and extracting the second shared data; and the second packaging unit is used for adding a second internet protocol packet header to the second shared data and packaging the second shared data into a second internet protocol data packet based on an internet protocol.
Optionally, the whiteboard server further includes: a third conversion module, configured to convert the second shared data into data in a JSON format; the second encapsulation module is specifically configured to add a second internet protocol packet header to the JSON-formatted data, and encapsulate the JSON-formatted data into a second internet protocol data packet based on an internet protocol.
Optionally, the first sending module is specifically configured to send the first video networking protocol data packet to the corresponding video networking terminal through the video networking server according to the downlink communication link configured for the corresponding video networking terminal.
In a third aspect, an embodiment of the present invention discloses a data processing 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 data processing method as described above.
In a fourth aspect, an embodiment of the present invention discloses a computer-readable storage medium, which is characterized in that a stored computer program causes a processor to execute the data processing method described above.
In the embodiment of the invention, if a whiteboard server receives a first internet protocol data packet sent by a whiteboard client, the first internet protocol data packet is converted into a first video networking protocol data packet; the whiteboard server sends the first video networking protocol data packet to a corresponding video networking terminal through the video networking server; if the white board server receives a second video networking protocol data packet sent by the video networking terminal through the video networking server, converting the second video networking protocol data packet into a second internet protocol data packet; and the whiteboard server sends the second Internet protocol data packet to the whiteboard client. Therefore, in the embodiment of the invention, the electronic whiteboard technology is applied to the video networking service, and the whiteboard server performs protocol conversion on the data, so that bidirectional data sharing between the whiteboard client and the video networking client is realized, the application universality of the electronic whiteboard is improved, and the video networking service is optimized.
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 flow chart of the steps of a data processing method of an embodiment of the present invention;
fig. 6 is a block diagram of a data processing apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.
The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.
To better understand the embodiments of the present invention, the following description refers to the internet of view:
some of the technologies applied in the video networking are as follows:
network Technology (Network Technology)
Network technology innovation in video networking has improved the traditional Ethernet (Ethernet) to face the potentially huge first video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network Circuit Switching (Circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.
Switching Technology (Switching Technology)
The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.
Server Technology (Server Technology)
The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.
Storage Technology (Storage Technology)
The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, and is directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.
Network Security Technology (Network Security Technology)
The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.
Service Innovation Technology (Service Innovation Technology)
The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.
Networking of the video network is as follows:
the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.
As shown in fig. 1, the video network is divided into an access network and a metropolitan network.
The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.
The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.
Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.
The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.
The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.
Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.
The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.
Video networking device classification
1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: server, exchanger (including Ethernet protocol conversion gateway), terminal (including various set-top boxes, code board, memory, 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 server, access exchanger (including Ethernet protocol conversion gateway), terminal (including various set-top boxes, coding board, memory, etc.).
The specific hardware structure of each access network device is as follows:
a node server:
as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;
the network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.
The access switch:
as shown in fig. 3, the network interface module mainly includes a network interface module (a downlink network interface module 301 and an uplink network interface module 302), a switching engine module 303 and a CPU module 304;
wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the incoming data packet of the CPU module 304 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.
The switching engine module 303 polls all packet buffer queues and may include two cases:
if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;
if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.
The rate control module 308 is configured by the CPU module 304, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.
Ethernet protocol conversion gateway：
As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.
Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;
the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA of the ethernet protocol gateway, and the ethernet length or frame type, and sends the packet.
The other modules in the ethernet protocol gateway function similarly to the access switch.
A terminal:
the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.
1.3 devices of the metropolitan area network part can be mainly classified into 2 types: node server, node exchanger, metropolitan area server. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.
2. Video networking packet definition
2.1 Access network packet definition
The data packet of the access network mainly comprises the following parts: destination Address (DA), Source Address (SA), reserved bytes, payload (pdu), CRC.
As shown in the following table, the data packet of the access network mainly includes the following parts:
| DA | SA | Reserved | Payload | CRC |
wherein:
the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are 256 possibilities at most, the second byte to the sixth byte are metropolitan area network addresses, and the seventh byte and the eighth byte are access network addresses;
the Source Address (SA) is also composed of 8 bytes (byte), defined as the same as the Destination Address (DA);
the reserved byte consists of 2 bytes;
the payload part has different lengths according to different types of datagrams, and is 64 bytes if the datagram is various types of protocol packets, and is 32+1024 or 1056 bytes if the datagram is a unicast packet, of course, the length is not limited to the above 2 types;
the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.
2.2 metropolitan area network packet definition
The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present invention: a label to uniquely describe a metropolitan area network device.
In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.
As shown in the following table, the data packet of the metro network mainly includes the following parts:
| DA | SA | Reserved | label (R) | Payload | CRC |
Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.
Based on the above characteristics of the video network, the data processing scheme provided by the embodiment of the invention follows the protocol of the video network, and applies the electronic whiteboard technology to the video network service. In the video network, video network services are uniformly managed by a video network server (which can be a node server in fig. 1).
The whiteboard client is an application that can be installed in a PC (personal computer), a notebook computer, or the like. The user can draw on the whiteboard and edit the contents on the whiteboard, such as marking, selecting, dragging, snapshotting and the like.
The whiteboard server serves the whiteboard client and has functions of managing the whiteboard client and the like. In the embodiment of the present invention, the whiteboard server may include two network cards, one network card faces the internet side and is used for performing communication connection with the whiteboard client, and the other network card faces the video network side and is used for performing communication connection with the video network server. The white board server can be registered on the video network server, and after registration, the user can access the video network to perform normal business. The successfully registered rear view network server may allocate information such as a view network number, a view network MAC (Media Access Control) Address, and the like to the whiteboard server.
The video network terminal is a service landing device on the video network, an actual participant or a server of the video network service, and the video network terminal can be various conference set-top boxes, video telephone set-top boxes, operation trial set-top boxes and the like. The video network terminal can be registered on the video network server, and the registered party can access the video network to perform normal service. The successfully registered rear view networking server may allocate information such as a view networking number, a Media Access Control (MAC) Address, and the like to the view networking terminal. A plurality of video network terminals may be registered on the video network server.
Referring to fig. 5, a flow chart of steps of a data processing method of an embodiment of the present invention is shown.
The data processing method of the embodiment of the invention can comprise the following steps:
The embodiment of the invention can be applied to video networking services such as video networking video teaching, video networking video conference and the like. In the video networking service, a user can edit the content on a white board client and share the data of the white board client to the corresponding video networking terminal. The user can be a teacher in video teaching, a speaker in a video conference, and the like.
In one implementation manner, the video network server may store information of each registered video network terminal, for example, a video network terminal list may be stored, and the video network terminal list may include information such as an identifier of the terminal (for example, a video network number), a name of the terminal, and the like. The whiteboard server can acquire the video network terminal list from the video network server and store the video network terminal list. When a user wants to share data of the whiteboard client to the video networking terminal, a video networking terminal list can be obtained through the whiteboard client. Therefore, the whiteboard client sends a list acquisition request to the whiteboard server; after receiving the list acquisition request, the whiteboard server acquires a stored video networking terminal list according to the list acquisition request and returns the video networking terminal list to the whiteboard client; and the whiteboard client receives the video networking terminal list returned by the whiteboard server and displays the video networking terminal list. The user can select the target terminal from the video network terminal list, and the whiteboard client acquires the identifier of the target terminal according to the selection of the user.
The whiteboard client and the whiteboard server are in communication connection based on an internet protocol. The Internet Protocol may be IP (Internet Protocol), TCP (Transmission Control Protocol).
The whiteboard client acquires first shared data, where the first shared data may include audio data, video data, content edited by a user on the whiteboard client, and the like. The whiteboard client may encapsulate the first shared data based on an internet protocol to obtain a first internet protocol data packet. The first internet protocol data packet includes a first internet protocol header, and the first internet protocol header may include information such as an IP address of the whiteboard client (source), an IP address of the whiteboard server (destination), an identifier of the target terminal, and a unique identifier of the whiteboard client. And the whiteboard client sends the first internet protocol data packet to the whiteboard server through the internet.
The whiteboard server receives first shared data sent by the whiteboard client through the network card facing the Internet side, and then forwards the first shared data to the video network server through the network card facing the video network side. As described above, after the whiteboard client encapsulates the first shared data into the first internet protocol data packet, the first internet protocol data packet is sent to the whiteboard server through the internet. The whiteboard server is in communication connection with the video networking server based on a video networking protocol, so that the whiteboard server converts the first internet protocol data packet into a first video networking protocol data packet.
In an implementation, the process of converting the first internet protocol data packet into the first video internet protocol data packet by the whiteboard server may include: analyzing the first internet protocol data packet and extracting the first shared data; and adding a first video networking protocol header to the first shared data, and packaging the first shared data into a first video networking protocol data packet based on a video networking protocol. The first video network protocol header may include information such as a source address (a video network MAC address of the whiteboard server), a destination address (a video network MAC address of the video network server), and an identifier of the target terminal.
It should be noted that, the whiteboard server may further record the identifier of the target terminal and the unique identifier of the whiteboard client, so as to facilitate subsequent searching and use.
And the whiteboard server sends the first video networking protocol data packet to the video networking server through the video networking. After receiving the first video networking protocol data packet, the video networking server obtains the identifier of the target terminal from the first video networking protocol data packet, modifies the source address in the first video networking protocol packet header of the first video networking protocol data packet into the video networking MAC address of the video networking server, modifies the destination address into the video networking MAC address of the video networking terminal corresponding to the identifier of the target terminal, and then sends the first video networking protocol data packet to the video networking terminal corresponding to the identifier of the target terminal.
In an alternative embodiment, the video networking server may send the first video networking protocol data packet to the video networking terminal according to a downlink communication link configured for the video networking terminal.
In practical applications, the video network is a network with a centralized control function, and includes a master control server and a lower level network device, where the lower level network device includes a terminal, and one of the core concepts of the video network is to configure a table for a downlink communication link of a current service by notifying a switching device by the master control server, and then transmit a data packet based on the configured table.
Namely, the communication method in the video network includes:
and the master control server configures the downlink communication link of the current service.
And transmitting the data packet of the current service sent by the source terminal to the target terminal according to the downlink communication link.
In the embodiment of the present invention, configuring the downlink communication link of the current service includes: and informing the switching equipment related to the downlink communication link of the current service to allocate the table.
Further, transmitting according to the downlink communication link includes: the configured table is consulted, and the switching equipment transmits the received data packet through the corresponding port.
In particular implementations, the services include unicast communication services and multicast communication services. Namely, whether multicast communication or unicast communication, the core concept of the table matching-table can be adopted to realize communication in the video network.
As mentioned above, the video network includes an access network portion, in which the master server is a node server and the lower-level network devices include an access switch and a terminal.
For the unicast communication service in the access network, the step of configuring the downlink communication link of the current service by the master server may include the following steps:
and a substep 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 of the main control server; and sending a port configuration command to the corresponding access switch according to the downlink communication port information of the access switch.
In sub-step 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 sub-step S21, the main control server obtains a service request protocol packet initiated by the target terminal and applying for the multicast communication service, where the service request protocol packet includes service type information, service content information, and an access network address of the target terminal.
Wherein, the service content information includes a service number.
And a substep 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 first video networking protocol data packet, the video networking terminal analyzes the first video networking protocol data packet, extracts the first shared data encapsulated in the first video networking protocol data packet, decodes and plays the first shared data, and achieves the purpose of sharing the data of the whiteboard client on the video networking terminal.
When the user of the video networking terminal watches the first shared data sent by the whiteboard client, a question can be asked for the first shared data, and the like. The video networking terminal can collect audio data and video data of a user and edit the audio data and the video data to obtain second shared data.
And the video networking terminal encapsulates the second shared data based on the video networking protocol to obtain a second video networking protocol data packet. The second video network protocol data packet comprises a second video network protocol header, and the second video network protocol header can comprise information such as a source address (a video network MAC address of a video network terminal), a destination address (a video network MAC address of a video network server), an identification of a target terminal and the like.
And the video network terminal sends the second video network protocol data packet to the video network server through the video network. After the video network server receives the second video network protocol data packet, the source address in the second video network protocol packet header of the second video network protocol data packet is modified into the video network MAC address of the video network server, the destination address is modified into the video network MAC address of the whiteboard server, and then the second video network protocol data packet is sent to the whiteboard server.
And the whiteboard server receives second shared data sent by the video networking server through the network card facing to the video networking side, and forwards the second shared data to the whiteboard client through the network card facing to the internet side. As described above, after the video network terminal encapsulates the second shared data into the second video network protocol data packet, the video network server sends the second video network protocol data packet to the whiteboard server. The whiteboard server therefore converts the second video networking protocol data packet into a second internet protocol data packet.
In an implementation, the process of converting the second video networking protocol data packet into a second internet protocol data packet by the whiteboard server may include: analyzing the second video networking protocol data packet and extracting the second shared data; and adding a second Internet protocol packet header to the second shared data, and packaging the second shared data into a second Internet protocol data packet based on an Internet protocol. The whiteboard server can obtain the unique identifier of the whiteboard client corresponding to the target terminal identifier included in the second internet protocol packet header according to the recorded identifier of the target terminal and the unique identifier of the whiteboard client, wherein the second internet protocol packet header includes the IP address of the whiteboard server (source) and the IP address of the whiteboard client (destination).
In an optional implementation manner, the whiteboard server may further push the second shared data to the whiteboard client in a JSON format. Therefore, after the whiteboard server analyzes the second video networking protocol data packet and extracts the second shared data, the second shared data can be converted into data in a JSON format. And then adding a second internet protocol packet header for the JSON format data by the whiteboard server, and packaging the JSON format data into a second internet protocol data packet based on an internet protocol.
JSON (JavaScript Object Notation) is a lightweight data exchange format. It stores and represents data in a text format that is completely independent of the programming language. The compact and clear hierarchy makes JSON an ideal data exchange language. The JSON format is easy to read and write, is easy to analyze and generate by a machine, and effectively improves the network transmission efficiency. Types such as strings, numbers, objects, arrays, etc. can all be represented by JSON. In the JSON format, objects are represented as key-value pairs, data are separated by commas, curly brackets hold objects, square brackets hold arrays.
And the whiteboard server sends a second internet protocol data packet to the whiteboard client through the internet. And after receiving the second internet protocol data packet, the whiteboard client analyzes the second internet protocol data packet, extracts the second shared data encapsulated in the second internet protocol data packet, decodes and plays the second shared data, and realizes the sharing of the data of the video network terminal on the whiteboard client.
In the embodiment of the invention, the electronic whiteboard technology is applied to the video networking service, and the whiteboard server performs protocol conversion on data, so that bidirectional data sharing between the whiteboard client and the video networking client is realized, the application universality of the electronic whiteboard is improved, and the video networking service is optimized.
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. 6, a block diagram of a data processing apparatus according to an embodiment of the present invention is shown. The data processing device of the embodiment of the invention can be applied to the video network. The whiteboard client is in communication connection with the whiteboard server, the whiteboard server is in communication connection with the video networking server, and the video networking server is in communication connection with the video networking terminal.
The data processing device of the embodiment of the invention can comprise the following modules in the whiteboard server:
the whiteboard server includes:
a first conversion module 601, configured to, if a first internet protocol data packet sent by the whiteboard client is received, convert the first internet protocol data packet into a first video internet protocol data packet;
a first sending module 602, configured to send the first video networking protocol data packet to a corresponding video networking terminal via the video networking server;
a second conversion module 603, configured to, if a second video networking protocol data packet sent by the video networking terminal via the video networking server is received, convert the second video networking protocol data packet into a second internet protocol data packet;
a second sending module 604, configured to send the second internet protocol data packet to the whiteboard client.
In an alternative embodiment, the first internet protocol data packet is loaded with first shared data; the first conversion module includes: the first analysis unit is used for analyzing the first internet protocol data packet and extracting the first shared data; and the first packaging unit is used for adding a first video networking protocol packet header for the first shared data and packaging the first shared data into a first video networking protocol data packet based on a video networking protocol.
In an alternative embodiment, the second video networking protocol data packet is packed with second shared data; the second conversion module includes: the second analysis unit is used for analyzing the second video networking protocol data packet and extracting the second shared data; and the second packaging unit is used for adding a second internet protocol packet header to the second shared data and packaging the second shared data into a second internet protocol data packet based on an internet protocol.
In an optional implementation, the whiteboard server further comprises: a third conversion module, configured to convert the second shared data into data in a JSON format; the second encapsulation module is specifically configured to add a second internet protocol packet header to the JSON-formatted data, and encapsulate the JSON-formatted data into a second internet protocol data packet based on an internet protocol.
In an optional implementation manner, the first sending module is specifically configured to send the first video networking protocol data packet to the corresponding video networking terminal via the video networking server according to a downlink communication link configured for the corresponding video networking terminal.
In the embodiment of the invention, the electronic whiteboard technology is applied to the video networking service, and the whiteboard server performs protocol conversion on data, so that bidirectional data sharing between the whiteboard client and the video networking client is realized, the application universality of the electronic whiteboard is improved, and the video networking service is optimized.
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.
In the embodiment of the invention, the invention also provides a data processing device. The apparatus may include one or more processors and one or more machine-readable media having instructions, such as an application program, stored thereon. When executed by the one or more processors, cause the apparatus to perform the data processing method described above.
In an embodiment of the invention, there is also provided a non-transitory computer readable storage medium, such as a memory, comprising instructions executable by a processor of an electronic device to perform the above-described data processing method. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
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 data processing method, the data processing apparatus and the storage medium provided by the present invention are described in detail above, and a specific example is applied in the present disclosure 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 (12)
1. A data processing method is characterized in that the method is applied to a video network, a white board client is in communication connection with a white board server, the white board server is in communication connection with a video network server, and the video network server is in communication connection with a video network terminal; the method comprises the following steps:
if the whiteboard server receives a first internet protocol data packet sent by the whiteboard client, converting the first internet protocol data packet into a first video networking protocol data packet;
the whiteboard server sends the first video networking protocol data packet to a corresponding video networking terminal through the video networking server;
if the white board server receives a second video networking protocol data packet sent by the video networking terminal through the video networking server, converting the second video networking protocol data packet into a second internet protocol data packet;
the whiteboard server sends the second internet protocol data packet to the whiteboard client;
the method further comprises the following steps:
after receiving the second internet protocol data packet, the whiteboard client analyzes the second internet protocol data packet, extracts second shared data encapsulated in the second internet protocol data packet, and decodes and plays the second shared data, so as to realize the sharing of the data of the video network terminal on the whiteboard client;
the whiteboard server comprises two network cards, one network card faces to the Internet side and is used for being in communication connection with the whiteboard client, and the other network card faces to the video networking side and is used for being in communication connection with the video networking server;
the whiteboard client side provides content editing for a user and shares data of the whiteboard client side to a corresponding video network terminal;
the first video networking protocol data packet includes first shared data.
2. The method of claim 1, wherein the first internet protocol data packet contains first shared data; the step of converting the first internet protocol data packet into a first video internet protocol data packet comprises:
analyzing the first internet protocol data packet and extracting the first shared data;
and adding a first video networking protocol header to the first shared data, and packaging the first shared data into a first video networking protocol data packet based on a video networking protocol.
3. The method of claim 1, wherein the second internet protocol data packet contains second shared data; the step of converting the second video networking protocol data packet into a second internet protocol data packet comprises:
analyzing the second video networking protocol data packet and extracting the second shared data;
and adding a second Internet protocol packet header to the second shared data, and packaging the second shared data into a second Internet protocol data packet based on an Internet protocol.
4. The method of claim 3,
before the step of adding a second ip header to the second shared data and encapsulating the second shared data into a second ip data packet based on an ip, the method further includes:
converting the second shared data into data in a JSON format;
the step of adding a second ip header to the second shared data and encapsulating the second shared data into a second ip data packet based on an ip includes:
and adding a second internet protocol packet header for the JSON format data, and packaging the JSON format data into a second internet protocol data packet based on an internet protocol.
5. The method according to claim 1, wherein the step of sending to the corresponding video network terminal via the video network server comprises:
and sending the downlink communication link configured for the corresponding video networking terminal to the corresponding video networking terminal through the video networking server.
6. A data processing device is characterized in that the device is applied to a video network, a white board client is in communication connection with a white board server, the white board server is in communication connection with a video network server, and the video network server is in communication connection with a video network terminal; the whiteboard server includes:
the first conversion module is used for converting a first internet protocol data packet into a first video internet protocol data packet if the first internet protocol data packet sent by the whiteboard client is received; the first video networking protocol data packet comprises first shared data;
the first sending module is used for sending the first video networking protocol data packet to a corresponding video networking terminal through the video networking server;
the second conversion module is used for converting a second video networking protocol data packet into a second internet protocol data packet if the second video networking protocol data packet sent by the video networking terminal through the video networking server is received;
the second sending module is used for sending the second internet protocol data packet to the whiteboard client;
the whiteboard client includes:
the sharing module is used for analyzing the second internet protocol data packet after the whiteboard client receives the second internet protocol data packet, extracting the encapsulated second sharing data, decoding and playing the second sharing data, so as to realize the sharing of the data of the video network terminal on the whiteboard client; the whiteboard client side provides content editing for a user and shares data of the whiteboard client side to a corresponding video network terminal;
the whiteboard server includes:
the internet-oriented side network card is used for being in communication connection with the whiteboard client;
and the network card facing the video networking side is used for carrying out communication connection with the video networking server.
7. The apparatus of claim 6, wherein the first internet protocol data packet contains first shared data; the first conversion module includes:
the first analysis unit is used for analyzing the first internet protocol data packet and extracting the first shared data;
and the first packaging unit is used for adding a first video networking protocol packet header for the first shared data and packaging the first shared data into a first video networking protocol data packet based on a video networking protocol.
8. The apparatus of claim 6, wherein the second video networking protocol data packet contains second shared data; the second conversion module includes:
the second analysis unit is used for analyzing the second video networking protocol data packet and extracting the second shared data;
and the second packaging unit is used for adding a second internet protocol packet header to the second shared data and packaging the second shared data into a second internet protocol data packet based on an internet protocol.
9. The apparatus of claim 8,
the whiteboard server further includes: a third conversion module, configured to convert the second shared data into data in a JSON format;
the second encapsulation module is specifically configured to add a second internet protocol packet header to the JSON-formatted data, and encapsulate the JSON-formatted data into a second internet protocol data packet based on an internet protocol.
10. The apparatus of claim 6,
the first sending module is specifically configured to send the first video networking protocol data packet to the corresponding video networking terminal via the video networking server according to the downlink communication link configured for the corresponding video networking terminal.
11. A data processing 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 the data processing method of any of claims 1 to 5.
12. A computer-readable storage medium, characterized in that it stores a computer program causing a processor to execute the data processing method according to any one of claims 1 to 5.
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| CN111818010B (en) * | 2020-05-26 | 2024-04-02 | 视联动力信息技术股份有限公司 | Data transmission method and device, electronic equipment and storage medium |
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