Unlock instant, AI-driven research and patent intelligence for your innovation.

Synchronous indication method and system for distributed video

A distributed video and synchronous display technology, applied in transmission systems, synchronization devices, digital transmission systems, etc., can solve the problems of inconsistent video data, unable to display video data synchronously, and unable to receive video data synchronously at the client

Inactive Publication Date: 2011-06-29
GUANGDONG VTRON TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the video data sent by the server is sent to the client, if a new client joins in at this time, the video data received by the new client and the previous client will be inconsistent in time, causing the new client and the previous client to receive video data. The previous client cannot receive the video data sent by the server synchronously, and the video data sent by the server cannot be displayed synchronously on the new client and the previous client.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Synchronous indication method and system for distributed video
  • Synchronous indication method and system for distributed video
  • Synchronous indication method and system for distributed video

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The distributed video synchronous display method of the present invention comprises steps, such as figure 1 as shown,

[0036] S101. The server allocates a multicast address, and sends video data to the multicast address, and then the server establishes a data connection with the first client according to the connection request sent by the first client, and sends the multicast address to first client;

[0037] S102. The first client receives the multicast address, and starts to receive video data sent by the server on the multicast address.

[0038] S103. The server establishes a data connection with the second client according to the connection request sent by the second client, and then sends the multicast address to the second client.

[0039] S104. The second client receives the multicast address, and also starts to receive video data sent by the server on the multicast address.

[0040] S105. The server changes the synchronization flag, and sends the changed syn...

Embodiment 2

[0055] Such as figure 2 As shown, the difference between this embodiment and the above-mentioned implementation one is that the starting point of sending video data by the server is different. In the first embodiment, the server allocates many multicast address, and send video data to the multicast address. In this embodiment, step S101 is, the server establishes a data connection with the first client according to the connection request sent by the first client, assigns a multicast address, and sends video data to the multicast address; and then the step S102. The server sends the multicast address to the first client. That is, in this embodiment, the server assigns a multicast address after the data connection is established between the first client and the server, and sends video data to the multicast address before sending the multicast to the first client. address. The rest of the steps are the same as those in Embodiment 1, and will not be repeated here.

Embodiment 3

[0057] The invention also discloses a system for synchronously displaying distributed video, such as image 3 As shown, the server, the first client and the second client; the server is respectively connected to the first client and the second client for data; client and second client data connection, such as Figure 4 As shown in , the data communication device may be a hub, router or switch.

[0058] Wherein, the server includes a data connection module and a multicast module;

[0059] The data connection module establishes a data connection with the first client and the second client respectively according to the connection requests successively sent by the first client and the second client; and successively sends the multicast address to the first client and the second client ;

[0060] The multicast module, after the data connection module sends the multicast address to the second client, changes the synchronization flag, and sends the changed synchronization flag inf...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a distributed video synchronous display method and system, the method includes the following steps: a service terminal is connected with a first client terminal according to the access request of the first client terminal, and a multicast address is transmitted to the first client terminal; the service terminal sets up data connection with a second client terminal according to the access request of the second client terminal, and the multicast address is transmitted to the second client terminal; then the service terminal changes the synchronous mark and transmits the synchronous mark information and video data to the second client terminal and the first client terminal in the way of multicast; the first client terminal and the second client terminal discard the video data previously sent by the service terminal according to the synchronous mark information and acquire and display new video data. For the distributed video display method and system provided by the invention, the first client terminal and the second client terminal can synchronously receive the video data transmitted by the service terminal and can synchronously display the video data at the first client terminal and the second client terminal.

Description

technical field [0001] The invention relates to the technical field of computer multimedia, in particular to a distributed video synchronous display method and system. Background technique [0002] Distributed video display is to send video data from the server to multiple clients for distributed display, and each client is responsible for displaying a part of the complete video image. [0003] In the prior art, the server sends video data to be displayed to multiple clients. Generally, the server uses a multicast data communication protocol to send video data to multiple clients, and the client receives the video data and displays it on the client. . However, when the video data sent by the server is sent to the client, if a new client joins in at this time, the video data received by the new client and the previous client will be inconsistent in time, causing the new client and the previous client to receive video data. The previous client cannot synchronously receive th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L7/027H04N21/8547
Inventor 刘先材谷新征王涛欧伟
Owner GUANGDONG VTRON TECH CO LTD