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Source quality based video stream transmission velocity regulation means

A rate adjustment and transmission rate technology, applied in the computer field, can solve the problem of not considering the relationship between quality and media quality distortion, and achieve the effect of ensuring acceptability

Active Publication Date: 2008-02-06
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The defect of these solutions is that the relationship with the original media quality is not considered when adjusting the media quality. If the original media format, media bit rate, media resolution and other content are not considered, simply adjusting the media bit rate will cause the final transmission and playback Distortion of media quality

Method used

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  • Source quality based video stream transmission velocity regulation means
  • Source quality based video stream transmission velocity regulation means
  • Source quality based video stream transmission velocity regulation means

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Embodiment Construction

[0019] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings. It should be noted that the described embodiments are for the purpose of illustration only, and do not limit the scope of the present invention. The various numerical values ​​described are not intended to limit the present invention, and these numerical values ​​can be appropriately modified according to the needs of those of ordinary skill in the art.

[0020] Fig. 1 is a block diagram showing the implementation system of the whole application scheme of the present invention. An RTP / RTCP connection is established between the server 100 and the client 200 to transmit media streams. The server 100 and client 200 here can be deployed on different PCs, notebooks, and embedded terminal devices. The specific composition of the server 100 and the client 200 is as follows.

[0021] The server 100 includes the following components.

[0022] The...

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Abstract

The present invention relates to a video frequency flow transmission speed adjusting method on basis of resource quality, which comprises: ensuring to transfer the transmission quality to up or lowering the transmission quality according to the net transmission code rate of the setting time and the present sending code rate; according to the quality property of the original video frequency, orderly carrying out a serial of transmission speed adjusting of at least one dimensionality in the sufferable scope of the source frequency, and when finishing the transmission speed adjusting of one dimensionality, and then adjusting the video frequency transmission speed after adjusting is satisfied the requirement of the transmission quality, and when satisfying the requirement of the transmission quality, ending the adjusting of video frequency flow transmission speed, and when finishing the transmission speed adjusting of each dimensionality, ending the adjusting of video frequency flow transmission speed.

Description

technical field [0001] The invention belongs to the technical field of computers, and relates to a video stream transmission rate adjustment method for dynamically adjusting video coding transmission quality according to the attributes of source video. Background technique [0002] When transmitting video and audio files (streams) in a wireless environment, due to the instability of the wireless environment, smooth and stable transmission bandwidth cannot be provided, resulting in sudden packet loss and a significant increase in network transmission delay due to the sudden decrease in bandwidth. In this case, the larger the bit rate of the transmitted file or media stream, the greater the transmission delay. The solution to packet loss is to increase redundant coding, and the solution to delay is to reduce the quality of the transmitted media when the network environment is poor, thereby reducing the amount of transmitted data; at the same time, when the network environment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04N7/26H04N19/103H04N19/157H04N19/164H04N19/37H04N19/40
Inventor 孙文彦王巍杨胤嗣康小剑谢刚
Owner LENOVO (BEIJING) LTD
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