Method, system and terminal for adjusting video quality

A video quality and terminal technology, applied in the field of video communication, can solve problems such as the impact of video transmission quality, achieve a balance between quality and fluency, and guarantee the effect of video experience

Active Publication Date: 2008-01-30
TENCENT TECH (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The present invention provides a method, system and terminal for adjusting video quality to solve the problem that the current network bandwidth value needs to be estimated in the prior art, and the video transmission quality will be affected when the estimation is inaccurate

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  • Method, system and terminal for adjusting video quality
  • Method, system and terminal for adjusting video quality

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Embodiment Construction

[0047] In order to adjust the video quality without estimating the current network bandwidth value, thereby avoiding the problem that the video transmission quality will be affected when the estimation is inaccurate, the present invention provides a system for adjusting the video quality, as shown in FIG. 1 , It includes: a sender terminal 1 and a receiver terminal 2 .

[0048]The sender terminal 1 is used to send encoded video code streams and RTCP packets, and extract corresponding level entries from the preset encoding level table according to the network status judgment result fed back by the receiver terminal 2, and use The parameters in this level table entry are encoded.

[0049] The receiver terminal 2 is used to decode the received video code stream, judge the network status according to the information in the received RTCP packet, and feed back the judgment result to the sender terminal 1 .

[0050] 2, the sender terminal 1 in the above system (i.e. the sender termi...

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Abstract

The invention discloses a method, a system and a terminal of a video quality adjustment, which solves the problem that a video transmission quality is influenced when an estimation of a network bandwidth is not exact because in the prior art a current network bandwidth needs to be estimated. The method of the invention comprises that: a default grade items are retrieved from a presupposed coding grade table and based on a parameter of the default grade items, a video connection is built. In addition, a real-time time transport control protocol RTCP is received and sent for the purpose of judging web state and according to the judging result, the current coding grade items is correspondingly adjusted. The network transmission resources terminal of the invention comprises an encoding unit, a RTCP transmission unit and a memory cell of the coding grade table for presupposing and coding grade table, a grade table items retrieval unit which is used for retrieving the corresponding grade items from the coding grade table stored in the memory cell of the coding grade table according to the received judging result of the web state and the retrieved parameter of the grade items is output to the encoding unit. The invention can avoid the estimation of the current network bandwidth.

Description

technical field [0001] The invention relates to the field of video communication, in particular to a method, system and terminal for adjusting video quality. Background technique [0002] With the rapid development of the Internet and the maturity of multimedia technology, the market application of video communication is becoming more and more extensive, and the ways to realize video communication have also become various, such as videophone, instant messaging, video chat, IPTV, remote monitoring , and telemedicine, etc. The broad prospects for the development of video communication make it another important form of communication after voice communication. [0003] Video communication is generally on a dedicated or public communication network, point-to-point or point-to-multipoint to transmit video data. From the perspective of users expecting wider communication and lower costs, public networks will be the first choice for users. At the same time, due to the real-time an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04L29/00
CPCH04N21/26216H04L29/06523H04L29/06517H04N21/44209H04N21/6437H04N21/6379H04N21/4425H04L65/80H04L65/608H04N21/4621H04N21/6373H04L65/65H04L65/752
Inventor 盛馥钟刘俊
Owner TENCENT TECH (SHENZHEN) CO LTD
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