CN108965370B

CN108965370B - Method for inserting text message, video network server and system

Info

Publication number: CN108965370B
Application number: CN201711268815.8A
Authority: CN
Inventors: 李海; 朱道彦; 姜佩佩; 韩杰
Original assignee: Visionvera Information Technology Co Ltd
Current assignee: Hainan Shilian Communication Technology Co.,Ltd.
Priority date: 2017-12-05
Filing date: 2017-12-05
Publication date: 2020-05-08
Anticipated expiration: 2037-12-05
Also published as: CN108965370A

Abstract

The embodiment of the invention provides a method for inserting text messages, a video networking server and a system, and relates to the technical field of video networking. The method is applied to the video network and comprises the following steps: the method comprises the steps that a webpage server provides a text inter-cut setting page, text messages and playing control parameters submitted by a target terminal are received through the text inter-cut setting page, the playing control parameters comprise display time, the webpage server sends the text messages and the playing control parameters to the target terminal through a video network server, and the target terminal inter-cuts the text messages in a subtitle mode on the basis of playing contents according to the display time. The invention can control the content and the time of the information release by different terminals through the subtitles, and improves the accuracy of the information release.

Description

Method for inserting text message, video network server and system

Technical Field

The invention relates to the technical field of video networking, in particular to a method for inserting text messages, a video networking server and a system.

Background

With the rapid development of network technologies, video networking information distribution is widely popularized in the aspects of life, work, learning and the like of users.

In the video network distribution, the server can send data such as video or audio to a plurality of terminals, so that the plurality of terminals play the data according to the received data, and the purpose of distributing information is achieved.

However, in the process of distributing information, each terminal is usually set in different environments or occasions, and data such as video or audio is usually recorded in advance and has no pertinence, so that the accuracy of distributing information is low, the effect is poor, and the requirements of distributing information by terminals in different occasions are difficult to adapt.

Disclosure of Invention

In view of the above, embodiments of the present invention are proposed to provide a method, a video network server and a system for inserting a text message that overcome or at least partially solve the above problems.

In order to solve the above problem, an embodiment of the present invention discloses a method for inserting a text message, where the method is applied to a video network and includes:

the method comprises the steps that a webpage server provides a text break-in setting page, text messages submitted by a target terminal and playing control parameters are received through the text break-in setting page, and the playing control parameters comprise display time;

the webpage server sends the text message and the playing control parameter to the target terminal through a video network server;

and the target terminal inserts the text message in a subtitle mode on the basis of playing the content according to the display time.

Optionally, the play control parameter further includes at least one of a character font, a character color, a character size, a display position, and a target terminal identifier.

Optionally, the sending, by the web server, the text message and the play control parameter to the target terminal through the video network server includes:

the webpage server sends the text message and the playing control parameter to the video network server through the video network;

the video network server encodes the text message and the play control parameter based on a preset encoding protocol to obtain a data packet carrying a specific identifier;

and the video network server sends the data packet to the target terminal so that the target terminal receives the data packet according to the specific identifier, analyzes the data packet to obtain the text message and the playing control parameter, and inserts the text message in a subtitle form on the basis of playing content according to the display time.

Optionally, the sending, by the video networking server, the data packet to the target terminal includes:

if the playing control parameter comprises the target terminal identification, determining the target terminal according to the target terminal identification;

and sending the data packet to the target terminal.

In order to solve the above problem, an embodiment of the present invention further discloses a method for inserting a text message, where the method is applied to a video network server in a video network, and includes:

receiving a text message and a playing control parameter which are sent by a webpage server and aim at a target terminal, wherein the playing control parameter comprises display time, and the text message and the playing control parameter are obtained by the webpage server receiving submitted data;

based on a preset coding protocol, coding the text message and the play control parameter to obtain a data packet carrying a specific identifier;

and sending the data packet to the target terminal so that the target terminal receives the data packet according to the specific identifier, analyzes the data packet to obtain the text message and the playing control parameter, and inserts the text message in a subtitle form on the basis of playing content according to the display time.

In order to solve the above problem, an embodiment of the present invention further discloses a system for inserting a text message, where the system is applied in a video network, and includes:

the webpage server is used for providing a text break-in setting page, receiving a text message submitted by a target terminal and a play control parameter through the text break-in setting page, wherein the play control parameter comprises display time;

the webpage server is also used for sending the text message and the playing control parameter to the target terminal through a video network server;

and the target terminal is used for inserting the text message in a subtitle mode on the basis of playing the content according to the display time.

Optionally, the web server is further configured to send the text message and the play control parameter to the video network server through the video network;

the video network server is used for coding the text message and the playing control parameter based on a preset coding protocol to obtain a data packet carrying a specific identifier;

the video network server is further configured to send the data packet to the target terminal, so that the target terminal receives the data packet according to the specific identifier, analyzes the data packet to obtain the text message and the play control parameter, and inserts the text message in a subtitle form on the basis of the play content according to the display time.

Optionally, the video network server is further configured to:

and sending the data packet to the target terminal.

In order to solve the above problem, an embodiment of the present invention further discloses a server for video networking, where the server for video networking is applied to video networking, and includes:

the system comprises a receiving module, a playing control module and a display module, wherein the receiving module is used for receiving a text message and playing control parameters which are sent by a webpage server and aim at a target terminal, the playing control parameters comprise display time, and the text message and the playing control parameters are obtained by the webpage server receiving submitted data;

the encoding module is used for encoding the text message and the playing control parameter based on a preset encoding protocol to obtain a data packet carrying a specific identifier;

and the sending module is used for sending the data packet to the target terminal so that the target terminal receives the data packet according to the specific identifier, analyzes the data packet to obtain the text message and the playing control parameter, and inserts the text message in a subtitle form on the basis of playing content according to the display time.

The embodiment of the invention has the following advantages:

in the embodiment of the invention, the webpage server can provide the text break setting page, so that the text break setting page receives the text message, the display time and other play control parameters submitted by the target terminal, and the text message and the play control parameters are sent to the target terminal, therefore, the target terminal can be flexibly and accurately controlled to release information according to the display time through the subtitles according to the play control parameters, namely, the content and the opportunity of the information released by different terminals through the subtitles can be controlled, and the accuracy of the information released is improved.

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 method of inserting text messages in accordance with the present invention;

FIG. 6 is a block diagram of a system for inserting text messages in accordance with the present invention;

FIG. 7 is a flow chart of the steps of a method of inserting text messages in accordance with the present invention;

FIG. 8 is a block diagram of a video networking server of the present invention;

fig. 9 is a block diagram of a system for inserting text messages in accordance with the present invention.

Detailed Description

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

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

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

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

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

network Technology (Network Technology)

Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face the potentially enormous video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network circuit Switching (circuit Switching), the 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: servers, switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.

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

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

a node server:

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

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

The access switch:

as shown in fig. 3, the network interface module 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 above characteristics of the video network, one of the core concepts of the embodiments of the present invention is proposed, in which a text message for a target terminal is received by a server in compliance with a protocol of the video network, and the target terminal is controlled to insert the text message in the form of a subtitle.

Referring to fig. 5, a flowchart illustrating steps of a method for inserting a text message according to the present invention is shown, where the method may be applied to a video network server in a video network, and specifically may include the following steps:

step 501, receiving a text message and a play control parameter for a target terminal sent by a web server, where the play control parameter includes display time, and the text message and the play control parameter are obtained by the web server receiving submitted data.

In order to control the target terminal to insert the text message in the form of the subtitle on the basis of displaying the content, the aim of flexibly and accurately controlling the target terminal to release the information in a targeted manner (including the environment, the application, the oriented user and the like of the target terminal) is achieved, namely, the content and the opportunity of different terminals for releasing the information through the subtitle are controlled, the accuracy of the information release is improved, and the video network server can receive the text message and the play control parameter which are submitted by the web server and are specific to the target terminal.

The text message is a text content to be displayed by the control target terminal, and may include various characters such as a character and a special symbol.

The play control parameter is used to describe a manner of controlling the target terminal to play the text message, for example, the display time may be used to control the timing of the target terminal to display the text message, and the display time may include an instant time or a fixed time point or a time period.

The web server (i.e. the web server) is configured to receive various control instructions submitted by the user to the device such as the target terminal, for example, displayed content and a manner of displaying the content, and may also feed back data from the device such as the target terminal to the user.

The web server can provide a control entry for the inter-cut text message to the user through a web page or a client, so that the information such as the text message submitted by the user, the playing control parameter and the like can be received through the control entry.

The video network server is used for encoding data such as a control instruction of the target terminal sent by the web server and sending the encoded data to the target terminal, and certainly, the video network server can also receive the data of the target terminal and feed the received data back to the web server, namely, the video network server can play a role in data transfer between the web server and the terminal.

The terminal (i.e. the video network terminal) is used for receiving data from the video network server and playing the data according to the received data, and the playing comprises multiple modes of displaying images, playing sound and the like. Wherein, the target terminal is the terminal selected by the user.

The webpage server can send the target terminal identification to the video network server, so that the target terminal is indicated to the video network server; or, the web server may also not send the target terminal identifier to the video network server, and the video network server determines all the currently connected terminals as the target terminals; or, the web server sends a user identifier (for example, an identifier of a user who submits the text message) to the video network server, and the video network server selects a corresponding target terminal according to the user identifier.

The terminal identifier is used to identify a terminal, and the terminal identifier may include a factory serial number, an IP (Internet Protocol) address, or a device number of the terminal, and may also include other information capable of identifying the terminal in practical applications.

The user identification is used to identify a user, and may include a user name or user ID obtained by the user registering in the video network.

The video network server may determine a terminal corresponding to the identifier in advance (for example, based on receiving a binding instruction of the user to the terminal), and store the user identifier and the corresponding terminal identifier, so that the corresponding terminal identifier may be searched as a target terminal identifier according to the user identifier, and the terminal corresponding to the target terminal identifier is the target terminal.

Alternatively, a system for inserting text messages may be as shown in FIG. 6. Referring to fig. 6, the system may include a Web end 01, a Web server 02, a video network server 03, a video network terminal 04, and a display device 05, which are sequentially connected through a network. The Web end 01 can be used as a client to interact with a user, and the Web end 01 can communicate with the Web server 02 based on an HTTP (HyperText Transfer Protocol, HTTP); the Web server 02, the video network server 03 and the video network terminal 04 can be connected through the video network; the video network terminal 04 may be connected to the display device 05 through an Interface such as an HDMI (High Definition Multimedia Interface) to display through the display device 05, but in actual applications, the video network terminal 04 may be connected to the display device 05 without connecting to the display device 05 and may display through a display screen provided in the video network terminal 04. When the system is used for inserting and broadcasting the text message, a user submits the text message, the display time, the target terminal identification and other information to the Web server 02 through the Web end 01, the Web server 02 forwards the received information to the video network server 03, the video network server 03 sends the received information to the target terminal 04, and the target terminal 04 receives the information, renders and displays the text message through the display equipment 05.

For example, a system for inserting text messages applied to a hospital is taken as an example. The terminal may include display terminals disposed in departments (including wards, pharmacies, financial departments, and consulting rooms), each display terminal may play different contents, such as hospital advertisement, queuing information, etc., the Web server and the video network server may be disposed in a machine room, and the Web server may be logged in by medical staff such as physicians and nurses through a pre-registered user identifier, and then submit a text message and display time for the display terminal of at least one department, for example, an ophthalmologist submits a text message for the ophthalmologic display terminal through the Web server as "please see a 188 th patient". The display time is instantaneous. The text message and the display time are transmitted to the display terminal for ophthalmology through the web server and the video network server, and the display terminal receives the information and immediately displays the text message of 'please see a doctor for No. 188 patient' in the form of subtitles on the current screen. According to the process, the terminal can be flexibly and accurately controlled to display the text message in a targeted manner on the basis of not influencing the existing display content, the flexibility and the accuracy of information publishing are improved, the pressure of medical staff is relieved, and the work of waiting in hospitals and the like is more reasonable and effective.

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 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: 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 described above, the video network includes an access network portion, in which the master server is a node server, and the lower-level network device includes 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 multicast communication services in the access network (e.g. controlling multiple terminals to play multimedia data, etc.), 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.

Step 502, based on a preset encoding protocol, encoding the text message and the play control parameter to obtain a data packet carrying a specific identifier.

In order to facilitate sending information such as text messages and playing control parameters to the terminal, the video network server can encode data to be sent to the terminal through a preset encoding protocol.

The preset encoding protocol may include a video networking subtitle protocol for encoding the text message and the play control parameter, and may be determined in advance by a video networking server.

The specific identifier is used to identify the data packet, so as to indicate that the content included in the data packet is a subtitle, the specific identifier is obtained by encoding data through a preset encoding protocol and then adding the encoded data to the data packet, and the specific identifier may be an ID (Identification card), for example, the specific identifier may be "8785".

Step 503, sending the data packet to the target terminal, so that the target terminal receives the data packet according to the specific identifier, analyzes the data packet to obtain the text message and the playing control parameter, and inserts the text message in a subtitle form on the basis of the playing content according to the display time.

In order to flexibly and accurately display the text message according to the display time and the control of the user, so as to accurately and pertinently release the information, the target terminal can receive the data packet, analyze the data packet to obtain the text message and the playing control parameter, and display the text message according to the display time in the playing control parameter.

As can be seen from the foregoing, the video network server can encode the text message and the play control parameter according to a preset encoding protocol, therefore, the target terminal can receive the data packet, detect whether the data packet carries the specific identifier, if the data packet carries the specific identifier, the information included in the data packet is determined to be a text message and a play-out control parameter, and therefore, after the reception of the data packet carrying the specific identifier is completed, the data packet may be parsed according to a corresponding protocol, i.e., a decoding protocol corresponding to a preset encoding protocol, to obtain a text message and play control parameters, and according to the playing control parameter (such as the display time), rendering the text message through a multimedia playing frame of the target terminal, and displaying the text message in a subtitle form on the basis of the currently played content.

For example, if the operating system installed in the target terminal is a Linux system, the text message may be sent to a frame buffer (i.e., Framebuffer, an interface provided by the Linux system for the display device, which abstracts the display buffer, shields the underlying differences of the image hardware, and allows the upper application program to directly read and write the display buffer in the graphics mode), so that the text message is rendered and displayed.

The target terminal can display the text message below the screen according to a preset font and a preset character size.

The preset font and the preset text size may be determined in advance by the target terminal, for example, the preset font may include a song style, and the preset text size may include 50 pixels.

In the embodiment of the invention, firstly, the video network server can receive the text message, the display time and other play control parameters aiming at the target terminal and sent by the web server, and send the question message and the play control parameters to the target terminal, so that the target terminal can be flexibly and accurately controlled to release information according to the display time through the subtitles according to the play control parameters, namely, the content and the opportunity of different terminals to release the information through the subtitles can be controlled, and the accuracy of the information release is improved.

Secondly, the video network server can encode the text message and the playing control parameter according to a preset encoding protocol to obtain a data packet carrying a specific identifier, so that a target terminal can be ensured to receive and analyze the data packet according to the specific identifier to obtain the text message and the playing control parameter, the reliability of the playing control parameter for sending the text message is further improved, and the reliability of the inter-cut text message is further improved.

Referring to fig. 7, a flowchart illustrating steps of an embodiment of a method for inserting a text message according to the present invention is shown, where the method may be applied in a video network, and specifically may include the following steps:

step 701, a web server provides a text break setting page, and receives a text message and a play control parameter submitted by a target terminal through the text break setting page, wherein the play control parameter includes display time.

In order to receive the text message submitted by the user and the playing control parameter conveniently, namely, the message interacted with the user is improved, and the efficiency of inserting the text message is improved. The web server may provide a text break setting interface so as to receive a text message and play control parameters for the target terminal, which are submitted by a user, through the text break setting interface.

The text break setting interface is used for receiving a text message of a user for the target terminal and a playing parameter setting interface, and the text break setting interface can comprise a setting entry for one or more items of content, such as a setting entry for a target terminal identifier, a setting entry for a text message, a setting entry for a display time and the like.

The Web server can provide a text insertion setting interface for the user through the Web end.

In the embodiment of the present invention, optionally, in order to further improve the effect of displaying the text message, for example, make the displayed text message more prominent, or reduce the influence of the displayed text message on the existing display content, so that the displayed text message is more easily perceived by the user, thereby further improving the effect of publishing the information, the play control parameter further includes at least one of a font of a character, a color of the character, a size of the character, a display position, and an identifier of the target terminal.

Wherein for any one of the play control parameters, at least one selectable parameter value may be provided, such that one of the at least one selectable parameter value is selected by the user.

For example, for text color, a plurality of options such as yellow, green, blue, and red may be provided by way of a drop-down menu.

Step 702, the web server sends the text message and the playing control parameter to the target terminal through a video network server.

The web server can send the text message and the playing control parameter to the target terminal through the video network.

In the embodiment of the present invention, optionally, in order to ensure that the target terminal can accurately receive the text message and the play control parameter, and further can accurately play the text message, and improve the reliability of the inter-cut text message, the web server sends the text message and the play control parameter to the video network server through the video network, the video network server encodes the text message and the play control parameter based on a preset encoding protocol to obtain a data packet carrying a specific identifier, the video network server sends the data packet to the target terminal, so that the target terminal receives the data packet according to the specific identifier and analyzes the data packet to obtain the text message and the play control parameter, and based on the display time and the play content, the text message is inserted in the form of subtitles.

For the way in which the video network server encodes the text message and the play control parameter to obtain the data packet carrying the specific identifier, and the way in which the target terminal receives the data packet and displays the text message according to the display time, reference may be made to the foregoing description, which is not repeated here.

In this embodiment of the present invention, optionally, as can be seen from the foregoing, the play control parameter may include a target terminal identifier, so that, in order to facilitate that a data packet can be quickly and accurately sent to a target terminal, thereby improving efficiency and reliability of controlling the target terminal to insert a text message, if the play control parameter includes the target terminal identifier, the target terminal is determined according to the target terminal identifier, and the data packet is sent to the target terminal.

If the playing control parameter includes the target terminal identifier, the web server may receive the target terminal identifier submitted by the user in the related manner described above, and send the received target terminal identifier to the video network server.

And 703, the target terminal inserts the text message in a subtitle form on the basis of playing the content according to the display time.

In order to release information in a targeted manner, improve the accuracy of the released information, reduce the interference of the text message on the current display content and further improve the effect of the released information, the target terminal can display the text message as a subtitle in a screen on the basis of playing the content according to the display time.

In this embodiment of the present invention, optionally, in order to further reduce interference caused by the text message to the currently displayed content and improve the effect of publishing information, the target terminal may display the text message as a first subtitle, and a second subtitle is also displayed in a screen of the target terminal, where the second subtitle includes a subtitle corresponding to the currently played content, for example, if a song is currently played, the second subtitle may include lyrics of the song or a movie is currently played, and the second subtitle may include lines in the movie, and the like.

In addition, in practical application, if the target terminal currently plays an image, the current playing progress may be suspended, only the text message is displayed in the current screen, and when the playing of the text message is finished, the image is continuously played from the previously suspended playing progress.

In the embodiment of the invention, firstly, the web server can provide a text break setting page, so that the text break setting page receives the text message submitted by the target terminal, the display time and other play control parameters, and sends the text message and the play control parameters to the target terminal, therefore, the target terminal can be flexibly and accurately controlled according to the display time through the play control parameters, the information can be specifically issued through the subtitles, that is, the content and the opportunity of issuing the information through the subtitles by different terminals can be controlled, and the accuracy of issuing the information is improved.

And secondly, the playing control parameters can also comprise at least one of character font, character color, character size, display position and target terminal identification, so that the display effect of the text message on the target terminal can be improved, the displayed text message is easier to be perceived by a user, and the effect of releasing information is further improved.

In addition, the webpage server can send the text message and the playing control parameter to the video network server, and the video network server can encode the text message and the playing control parameter according to a preset encoding protocol to obtain a data packet carrying a specific identifier, so that the target terminal can be ensured to receive and analyze the data packet according to the specific identifier to obtain the text message and the playing control parameter, the reliability of the playing control parameter for sending the text message is further improved, and the reliability of the inter-cut text message is further improved.

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

Referring to fig. 8, there is shown a block diagram of a video network server according to the present invention, which may be applied in a video network, and specifically may include:

a receiving module 801, configured to receive a text message and a play control parameter for a target terminal, where the text message and the play control parameter are sent by a web server, and the text message and the play control parameter are obtained by receiving submitted data by the web server;

an encoding module 802, configured to encode the text message and the play control parameter based on a preset encoding protocol to obtain a data packet with a specific identifier;

a sending module 803, configured to send the data packet to the target terminal, so that the target terminal receives the data packet according to the specific identifier, analyzes the data packet to obtain the text message and the play control parameter, and inserts the text message in the form of a subtitle on the basis of the play content according to the display time.

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.

Referring to fig. 9, there is shown a block diagram of a system for inserting text messages, which may be applied in a video network, and specifically includes:

a web server 901, configured to provide a text break-in setting page, and receive a text message and a play control parameter submitted by a target terminal through the text break-in setting page, where the play control parameter includes display time;

the web server 901 is further configured to send the text message and the play control parameter to the target terminal through a video network server;

the target terminal 902 is configured to insert the text message in a subtitle form on the basis of the playing content according to the display time.

Optionally, the video network server is further configured to:

and sending the data packet to the target terminal.

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

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

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

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

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The method, the video network server and the system for inserting the text message provided by the invention 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. A method for inserting text messages, which is applied to a video network, comprises the following steps:

the method comprises the steps that a webpage server provides a text break-in setting page, text messages submitted by a target terminal and playing control parameters are received through the text break-in setting page, and the playing control parameters comprise display time; the playing control parameters are used for controlling the content and the opportunity of the information sent by the target terminal through the subtitles;

the target terminal inserts the text message in a subtitle mode on the basis of playing contents according to the display time;

wherein, the web server sending the text message and the play control parameter to the target terminal through a video network server comprises:

the video network server encodes the text message and the play control parameter based on a preset encoding protocol to obtain a data packet carrying a specific identifier, wherein the specific identifier is used for indicating that the content included in the data packet is a subtitle;

the webpage server also sends a submitted user identifier to the video network server, and the video network server selects a corresponding target terminal according to the user identifier; the user identification is the identification of the user submitting the text message;

the video network server sends the data packet to the target terminal so that the target terminal detects whether the data packet carries the specific identifier after receiving the data packet, receives the data packet according to the specific identifier under the condition that the data packet carries the specific identifier, analyzes the data packet to obtain the text message and the playing control parameter, and inserts the text message in a subtitle mode on the basis of playing content according to the display time.

2. The method of claim 1, wherein the playback control parameters further comprise at least one of a text font, a text color, a text size, a display position, and a target terminal identifier.

3. The method of claim 1, wherein the sending of the data packet by the video networking server to the target terminal comprises:

and sending the data packet to the target terminal.

4. A method for inserting text messages, which is applied to a video network server in a video network, comprises the following steps:

receiving a text message and a playing control parameter which are sent by a webpage server and aim at a target terminal, wherein the playing control parameter comprises display time, and the text message and the playing control parameter are obtained by the webpage server receiving submitted data; the playing control parameters are used for controlling the content and the opportunity of the information sent by the target terminal through the subtitles;

based on a preset coding protocol, coding the text message and the play control parameter to obtain a data packet carrying a specific identifier, wherein the specific identifier is used for indicating that the content included in the data packet is a subtitle;

receiving a user identifier submitted by a webpage server, and selecting a corresponding target terminal according to the user identifier; the user identification is the identification of the user submitting the text message;

and sending the data packet to the target terminal so that the target terminal detects whether the data packet carries the specific identifier after receiving the data packet, receiving the data packet according to the specific identifier under the condition that the data packet carries the specific identifier, analyzing the data packet to obtain the text message and the playing control parameter, and inserting and playing the text message in a subtitle form on the basis of playing content according to the display time.

5. A system for inserting text messages, the system being applied in a video network, comprising:

the webpage server is also used for sending the text message and the playing control parameter to the target terminal through a video network server; the system is also used for sending a submitted user identifier to the video network server; the user identification is the identification of the user submitting the text message; the playing control parameters are used for controlling the content and the opportunity of the information sent by the target terminal through the subtitles;

the target terminal is used for inserting the text message in a subtitle mode on the basis of playing the content according to the display time;

the webpage server is also used for sending the text message and the playing control parameter to the video network server through the video network;

the video network server is used for coding the text message and the play control parameter based on a preset coding protocol to obtain a data packet carrying a specific identifier, wherein the specific identifier is used for explaining that the content included in the data packet is a subtitle; the video network server is also used for selecting a corresponding target terminal according to the user identification;

the video network server is further configured to send the data packet to the target terminal, so that the target terminal detects whether the data packet carries the specific identifier after receiving the data packet, receive the data packet according to the specific identifier under the condition that the data packet carries the specific identifier, analyze the data packet to obtain the text message and the play control parameter, and insert-play the text message in a subtitle form on the basis of play content according to the display time.

6. The system of claim 5, wherein the playback control parameters further comprise at least one of a text font, a text color, a text size, a display location, and a target terminal identification.

7. The system of claim 5, wherein the visual networking server is further configured to:

and sending the data packet to the target terminal.

8. An internet of view server, wherein the internet of view server is used in an internet of view, comprising:

the system comprises a receiving module, a playing control module and a display module, wherein the receiving module is used for receiving a text message and playing control parameters which are sent by a webpage server and aim at a target terminal, the playing control parameters comprise display time, and the text message and the playing control parameters are obtained by the webpage server receiving submitted data; the system is also used for receiving the user identification submitted by the webpage server; the user identification is the identification of the user submitting the text message; the playing control parameters are used for controlling the content and the opportunity of the information sent by the target terminal through the subtitles;

the encoding module is used for encoding the text message and the play control parameter based on a preset encoding protocol to obtain a data packet carrying a specific identifier, wherein the specific identifier is used for indicating that the content included in the data packet is a subtitle;

the sending module is used for selecting a corresponding target terminal according to the user identification; and the data packet is sent to the target terminal, so that the target terminal detects whether the data packet carries the specific identifier after receiving the data packet, receives the data packet according to the specific identifier under the condition that the data packet carries the specific identifier, analyzes the data packet to obtain the text message and the playing control parameter, and inserts the text message in a subtitle form on the basis of playing content according to the display time.