CN108574816B

CN108574816B - Video networking terminal and communication method and device based on video networking terminal

Info

Publication number: CN108574816B
Application number: CN201710797449.9A
Authority: CN
Inventors: 彭宇龙; 韩杰; 刘帅; 王艳辉
Original assignee: Visionvera Information Technology Co Ltd
Current assignee: Visionvera Information Technology Co Ltd
Priority date: 2017-09-06
Filing date: 2017-09-06
Publication date: 2020-08-25
Anticipated expiration: 2037-09-06
Also published as: CN108574816A

Abstract

The embodiment of the invention provides a video networking terminal and a communication method and device based on the video networking terminal, wherein the video networking terminal comprises an exchanger, a first chip and at least two second chips, wherein the first chip and the at least two second chips are connected with the exchanger; the at least two second chips are connected with the camera and used for coding the obtained second video data collected by the camera and sending the coded second video data to the video networking server. By the embodiment of the invention, the video data are coded and decoded by adopting different chips, the coding and decoding efficiency is improved, and the real-time performance of video communication is ensured.

Description

Video networking terminal and communication method and device based on video networking terminal

Technical Field

The invention relates to the field of video networking, in particular to a video networking terminal, and a communication method and device based on the video networking terminal.

Background

With the development of scientific technology, the communication mode becomes more and more diversified, the video communication becomes a common communication mode, people in different places can communicate and cooperate remotely face to face through the video communication, and the use experience of users is improved.

In the prior art, a mobile terminal is generally used for video communication, and a user can initiate a video request through social software installed on the mobile terminal and then establish a connection with a mobile terminal of a communication counterpart based on a TCP/IP protocol, so as to implement video communication between the mobile terminals.

However, the existing video communication method is difficult to be applied to the field of video networking, and a new video networking terminal is also required to deal with video communication in the face of the increasing video data volume in the video communication process, especially to be applied to video conferences.

Disclosure of Invention

In view of the above problems, embodiments of the present invention are proposed to provide a video network terminal and a communication method and apparatus based on the video network terminal, which overcome or at least partially solve the above problems.

In order to solve the above problems, an embodiment of the present invention discloses a video networking terminal, which includes a switch, and a first chip and at least two second chips connected to the switch;

the first chip is connected with a video network server and used for decoding received first video data sent by the video network server and playing the decoded first video data;

the at least two second chips are connected with the camera and used for coding the obtained second video data collected by the camera and sending the coded second video data to the video networking server.

Preferably, the first chip is connected with a microphone, and the at least two second chips are connected with the first chip through the switch;

the at least two chips are used for sending the encoded second video data to the first chip through the switch, and sending the encoded second video data to the video networking server through the first chip;

the first chip is used for carrying out time synchronization on the received encoded second video data and the obtained second audio data collected by the microphone, and sending the time-synchronized second video data and the time-synchronized second audio data to the video networking server.

Preferably, the first chip is further configured to play the time-synchronized second video data and the time-synchronized second audio data.

Preferably, the first chip is further configured to decode the received first audio data sent by the video networking server, and play the decoded first audio data and the first video data synchronously.

Preferably, the decoding capability of the first chip is greater than the encoding capability of the at least two second chips, the first chip is an RK3288 chip, and the at least two second chips are HI3516A chips.

Preferably, the video networking terminal further comprises a network port connected with the first chip, a first HDMI interface, and second HDMI interfaces connected with the at least two second chips;

the first chip is connected with the video network server through the internet access, the first chip is played through the first HDMI interface, and the at least two second chips are connected with the camera through the second HDMI interface.

The embodiment of the invention also discloses a communication method based on the video network terminal, the video network terminal comprises a switch, a first chip and at least two second chips, the first chip and the at least two second chips are connected with the switch, the first chip is connected with the video network server, the at least two second chips are connected with the camera, and the method comprises the following steps:

receiving first video data sent by the video networking server, decoding the first video data by adopting the first chip, and playing the decoded first video data;

and acquiring second video data acquired by the camera, encoding the second video data by adopting the at least two second chips, and sending the encoded second video data to the video networking server.

The embodiment of the invention also discloses a communication device based on the video network terminal, the video network terminal comprises a switch, a first chip and at least two second chips, the first chip and the at least two second chips are connected with the switch, the first chip is connected with the video network server, the at least two second chips are connected with the camera, and the device comprises:

the first video data playing module is used for receiving first video data sent by the video networking server, decoding the first video data by adopting the first chip and playing the decoded first video data;

and the second video data sending module is used for acquiring second video data acquired by the camera, encoding the second video data by adopting the at least two second chips and sending the encoded second video data to the video network server.

The embodiment of the invention also discloses electronic equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the steps of the method are realized when the processor executes the program.

The embodiment of the invention also discloses a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and the computer program realizes the steps of the method when being executed by a processor.

The embodiment of the invention has the following advantages:

in the embodiment of the invention, the video networking terminal is set to comprise the switch, the first chip and the at least two second chips, wherein the first chip and the at least two second chips are connected with the video networking server, and can be used for decoding the received first video data sent by the video networking server and playing the decoded first video data.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

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 schematic structural diagram of a video network terminal according to an embodiment of the present invention;

FIG. 6 is a flowchart illustrating steps of a communication method based on a video networking terminal according to an embodiment of the present invention;

fig. 7 is a block diagram of a communication device based on a video network terminal 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. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

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

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

To better understand the embodiments of the present invention, the following description refers to the internet of view:

some of the technologies applied in the video networking are as follows:

network technology (network technology)

Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face the potentially enormous video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network circuit Switching (circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.

Switching Technology (Switching Technology)

The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.

Server technology (Servertechnology)

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.

1. 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 data packet coming from the CPU module 204 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.

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

if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) 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 208 is configured by the CPU module 204, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.

The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.

Ethernet protocol conversion gateway：

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

Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;

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

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

A terminal:

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

1.3 devices of the metropolitan area network part can be mainly classified into 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 characteristics of the video network, the core concept of the embodiment of the invention is provided, the video network terminal is set to comprise the switch, the first chip and the at least two second chips, the first chip is connected with the video network server and can be used for decoding the received first video data sent by the video network server and playing the decoded first video data, and the at least two second chips are connected with the camera and can be used for encoding the second video data acquired by the camera and sending the encoded second video data to the video network server.

Referring to fig. 5, a schematic structural diagram of a terminal for video networking according to an embodiment of the present invention is shown, where the terminal for video networking may include a physical terminal such as a set-top box (SetTopBox, STB), and the set-top box may be called a set-top box or set-top box, and is a device for connecting a television set and an external signal source, and may convert a compressed digital signal into television content and display the television content on the television set. Generally, the set-top box may be connected to a camera and a microphone for collecting multimedia data such as video data and audio data, and may also be connected to a television for playing multimedia data such as video data and audio data.

The terminal of the video network can also comprise a virtual video network terminal, the virtual video network terminal is a terminal for accessing the video network to realize special services, and refers to special software, an environment can be created between the terminal and a terminal user, the terminal user operates the software based on the environment created by the software, and the virtual video network terminal can be realized by the software of the terminal which runs programs like a real machine.

In an embodiment of the present invention, the video networking terminal may include a switch 501, and a first chip 502 and at least two second chips 503 connected to the switch 501.

The switch 501 may be used for data transmission between the first chip 502 and at least two second chips 503, and the at least two second chips 503 may be connected to the first chip 502 through the switch 501 to send data to the first chip 502.

The decoding capability of the first chip 502 may be greater than the encoding capability of the at least two second chips 503, for example, the encoding capability of the at least two second chips 503 is 1080P @30fps, and the decoding capability of the first chip 502 may be 4K @60 fps.

As an example, the first chip 502 may be an RK3288 chip, where the RK3288 chip is a global first ARM (advanced RISC machines) brand new architecture kernel chip, or a global first latest Mali-T76x series GPU, and a global first 4Kx2K chip for hard-solving H.265 video.

At least two second chips 503 can be HI3516A chips, HI3516A chips are professional high-end SOC (System on Chip) chips of haisi semiconductor for high-definition IPCamera product application development, and 1080P @30fps h.264 multi-code stream coding performance, excellent ISP (In-System programming) and coded video quality, high-performance intelligent acceleration engine and other characteristics of the chips, so that ebom cost can be greatly reduced while requirements of functions, performance and image quality of client differentiation IPCamera products are met.

Specifically, the first chip 502 may be connected to a video network server, and configured to decode first video data received from the video network server and play the decoded first video data; the at least two second chips 503 may be connected to the camera, and are configured to encode the second video data acquired by the camera, and send the encoded second video data to the video networking server.

In the process of the video conference, the video networking terminal can be connected with other terminals through the video networking server to transmit video data, and the other terminals can be video networking terminals or internet terminals.

On the one hand, other terminals can send the first video data of real-time collection to the video network server, and the video network server can send first video data to the video network terminal, and the video network terminal can receive first video data, adopts the decoder of first chip 502 to decode first video data, plays the first video data after will decoding again.

As an example, the first chip 502 may employ h.264-based decoding, and the first video data may be h.264-based video data before decoding and YUV-based video data after decoding, so that playing can be achieved.

In a preferred example, the video network terminal may further include a network port connected to the first chip 502, and a first HDMI (High definition multimedia Interface) Interface, where the first chip 502 may be connected to the video network server through the network port, and the first chip 502 may play using the first HDMI Interface.

On the other hand, the video network terminal can acquire the second video data acquired by the camera, at least two second chips 503 are adopted to encode the second video data, then the encoded second video data are sent to the video network server, the video network server sends the encoded second video data to other terminals, and other terminals can play the video data.

In a preferred example, the video network terminal may further include a second HDMI interface connected to the at least two second chips 503, and the at least two second chips 503 may be connected to the camera through the second HDMI interface.

It should be noted that the second video data may also be video data acquired by the video networking terminal from other devices after being acquired by the cameras of the other devices, such as video data output by the notebook to the video networking terminal through the HDMI.

IN a preferred embodiment of the present invention, the first chip 502 can be connected to a microphone, such as a Karman head, LINE _ IN, or the like, for audio data acquisition.

Correspondingly, the at least two chips 503 may be configured to send the encoded second video data to the first chip 502 through the switch 501, and send the encoded second video data to the video networking server through the first chip 502;

the first chip 502 may be configured to perform time synchronization on the received encoded second video data and the obtained second audio data collected by the microphone, and send the time-synchronized second video data and the time-synchronized second audio data to the video networking server.

Specifically, when the camera collects the second video data, the microphone also collects the second audio data, the at least two chips 503 may send the encoded second video data to the first chip 502, and the microphone may also send the second audio data to the first chip 502.

The first chip 502 may receive the encoded second video data and the encoded second audio data, and then perform time synchronization on the encoded second video data and the encoded second audio data, for example, set the same timestamp, and send the time-synchronized second video data and the time-synchronized second audio data to the video networking server, which then sends the time-synchronized second video data and the time-synchronized second audio data to other terminals, and the other terminals may perform synchronized playing on the time-synchronized second video data and the time-synchronized second audio data.

In a preferred embodiment of the present invention, the first chip 502 may be further configured to play the time-synchronized second video data and the time-synchronized second audio data.

In the process of video communication, the video networking terminal can play first video data sent by other terminals, and can locally play second video data and second audio data after time synchronization is carried out on second video data and second audio data collected by the video networking terminal, so that the video data of both video communication sides can be simultaneously played in the video networking terminal.

IN a preferred example, the video networking terminal may further include an external interface, such as a USB interface, an HDMI _ OUTx2 interface, an HDMI _ IN interface, a dongle interface, RCA (Radio Corporation of american, AV interface), and the like.

Referring to fig. 6, a communication method based on a video networking terminal according to an embodiment of the present invention is shown, where the video networking terminal may include a switch, and a first chip and at least two second chips connected to the switch, the first chip may be connected to a video networking server, and the at least two second chips may be connected to a camera, and the method specifically includes the following steps:

step 601, receiving first video data sent by the video networking server, decoding the first video data by using the first chip, and playing the decoded first video data;

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:

the main control server configures a downlink communication link of the current service;

and transmitting the data packet of the current service sent by the source terminal to a target terminal (such as a video network terminal) according to the downlink communication link.

In the embodiment of the present invention, configuring the downlink communication link of the current service includes: informing the switching equipment related to the downlink communication link of the current service to allocate a 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:

in the substep S11, the main control server obtains 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 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 control server; sending a port configuration command to a corresponding access switch according to the downlink communication port information of the access switch;

in sub-step S13, the access switch sets the downstream port to which the packet of the current service is directed in its internal packet address table according to the port configuration command.

For a multicast communication service (e.g., video conference) in the access network, the step of the master server obtaining downlink information of the current service may include the following sub-steps:

in the substep S21, the main control server obtains a service request protocol packet initiated by the target terminal and applying for the multicast communication service, wherein the service request protocol packet includes service type information, service content information and an access network address of the target terminal; wherein, the service content information comprises a service number;

substep S22, the master control server extracts the access network address of the source terminal in the 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.

Based on the communication method, the video network terminal can carry out video communication with other terminals, can carry out a video communication interface, and can be connected with other terminals in a dialing mode.

After the communication both sides are successfully connected, other terminals can adopt the camera to gather first video data, then send first video data to the video networking server, and after the video networking server received first video data, can send first video data to the video networking terminal, the video networking terminal can receive first video data.

After the video network terminal receives the first video data, the first chip may be used to decode the first video data, and then the decoded first video data is played.

Step 602, acquiring second video data acquired by the camera, encoding the second video data by using the at least two second chips, and sending the encoded second video data to the video networking server.

After the communication parties are successfully connected, the video networking terminal can shoot videos by adopting the camera to obtain second video data, then the second video data are coded by adopting at least two second chips, the coded second video data are sent to the video networking server, and the video networking server can send the coded second video data to other terminals after receiving the coded second video data, so that the second video data are played in other terminals.

It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.

Referring to fig. 7, a block diagram of a communication apparatus based on a video networking terminal according to an embodiment of the present invention is shown, where the video networking terminal may include a switch, and a first chip and at least two second chips connected to the switch, the first chip is connected to a video networking server, and the at least two second chips are connected to a camera, the apparatus includes:

a first video data playing module 701, configured to receive first video data sent by the video networking server, decode the first video data by using the first chip, and play the decoded first video data;

and the second video data sending module 702 is configured to obtain second video data acquired by the camera, encode the second video data by using the at least two second chips, and send the encoded second video data to the video networking server.

The embodiment of the invention also discloses a computer readable storage medium, which is stored with a computer program, and is characterized in that the program is executed by a processor to realize the steps of the method.

For the embodiments of the apparatus, the electronic device, and the computer-readable storage medium, since they are substantially similar to the embodiments of the method, the description is simple, and for the relevant points, reference may be made to the partial description of the embodiments of the method.

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 video networking terminal, the communication method based on the video networking terminal and the communication device based on the video networking terminal are described in detail, a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. The video networking terminal is characterized by comprising a switch, a first chip and at least two second chips, wherein the first chip and the at least two second chips are connected with the switch;

the at least two second chips are connected with the camera and used for coding the second video data acquired by the camera and sending the coded second video data to the video networking server;

the first chip is connected with a microphone, and the at least two second chips are connected with the first chip through the switch;

the at least two second chips are used for sending the encoded second video data to the first chip through the switch, and sending the encoded second video data to the video networking server through the first chip;

2. The terminal of claim 1, wherein the first chip is further configured to play the time-synchronized second video data and the time-synchronized second audio data.

3. The terminal of claim 1 or 2, wherein the first chip is further configured to decode the received first audio data sent by the video networking server, and play the decoded first audio data and the first video data synchronously.

4. The video networking terminal of claim 3, wherein the decoding capability of the first chip is greater than the encoding capability of the at least two second chips, the first chip is a RK3288 chip, and the at least two second chips are HI3516A chips.

5. The terminal of claim 1, further comprising a network port connected to the first chip, a first HDMI interface, and a second HDMI interface connected to the at least two second chips;

6. A communication method based on a video network terminal is characterized in that the video network terminal comprises a switch, a first chip and at least two second chips, wherein the first chip and the at least two second chips are connected with the switch; the method comprises the following steps:

acquiring second video data acquired by the camera, encoding the second video data by adopting the at least two second chips, and sending the encoded second video data to the video networking server;

7. A communication device based on a video network terminal is characterized in that the video network terminal comprises a switch, a first chip and at least two second chips, wherein the first chip and the at least two second chips are connected with the switch; the device comprises:

the second video data sending module is used for acquiring second video data acquired by the camera, encoding the second video data by adopting the at least two second chips and sending the encoded second video data to the video networking server;

8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the steps of the method of any of claims 1-6 are implemented when the program is executed by the processor.

9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.