Method and equipment for repairing video data flow and video transmission system

A data stream and video technology, applied in the field of network communication, can solve problems such as mismatch, unrepairable packets, wasted bandwidth, etc., and achieve the effect of optimal network conditions

Inactive Publication Date: 2013-04-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem in the prior art that the redundancy of the generated forward error correction repair flow does not match the network conditions, resulting in waste of bandwidth or irreparable packets, the embodiment of the present invention provides a repair video data Streaming method, device and video transmission system

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  • Method and equipment for repairing video data flow and video transmission system
  • Method and equipment for repairing video data flow and video transmission system
  • Method and equipment for repairing video data flow and video transmission system

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Embodiment Construction

[0021] The present invention will be further explained below in conjunction with specific embodiments and accompanying drawings.

[0022] In order to solve the problem in the prior art that transmission consumes too much bandwidth or the video data stream cannot completely repair data due to inappropriate FEC repair flow redundancy, the embodiment of the present invention provides a method for repairing the video data stream.

[0023] A method for repairing video data streams, applied to network equipment, comprising:

[0024] 101. Obtain information about user links and user equipment;

[0025] 102. Generate a forward error correction repair stream according to the user link and user equipment information;

[0026] 103. Send the FEC repair stream to the user equipment, so that the user equipment repairs the lost video data stream according to the FEC repair stream.

[0027] For ease of understanding, the embodiment of the present invention is described by taking an applicat...

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PUM

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Abstract

A method, an apparatus and a video transmission system for repairing the video data stream, relating to the network communication filed, are provided by the embodiments of the present invention. The problems that too much bandwidth is consumed for transmission because of the improper redundancy of the forward error correction repair stream or the received video data stream can not be repaired completely are solved. The method for repairing the video data stream is applied in the video distribution function entity, and includes: obtaining the information of the user link and the user equipment; generating the forward error correction repair stream according to the information of the user link and the user equipment; transmitting the forward error correction repair stream to the user equipment in order that the lost video data stream can be repaired according to the forward error correction repair stream by the user equipment. The embodiments of the present invention can be applied to repair the video data stream.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method, equipment and video transmission system for repairing video data streams. Background technique [0002] In the process of transmitting network video data streams, in order to overcome the problem of data loss or bit errors affecting the video picture quality, the original video data stream of forward error correction repair stream can be sent through the source. The FEC repair flow is a repair message generated by performing redundant coding on original data based on the FEC error repair protocol at the source end, allowing the user equipment to use the repair message to repair lost original data. The specific process is as follows: [0003] The source generates an original data stream and one or two repair streams, and sends them to the user equipment; after receiving the data, the user finds that there is data loss in the data stream, and uses the forward error c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/64H04N7/66H04L1/22H04N19/89
CPCH04L65/4069H04L65/1059H04L1/1812H04L29/06306H04L29/06448H04L65/61
Inventor 严为杨友庆郑合文
Owner HUAWEI TECH CO LTD
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