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Conference television speed-up and speed-down method

A conference TV, speed up and down technology, applied in the field of communication, can solve problems such as no support for speed up, achieve good video effects, and improve user experience

Inactive Publication Date: 2007-11-14
NANJING ZHONGXING XIN SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the main conference TV manufacturers Tide and Polycom also have relevant strategies, but they only support automatic speed reduction, and do not support the process of speed up

Method used

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  • Conference television speed-up and speed-down method
  • Conference television speed-up and speed-down method

Examples

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Embodiment Construction

[0017] The specific implementation manners of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] Referring to FIG. 1 , a video conference video speed up and down method according to an embodiment of the present invention is illustrated. As shown in Figure 1, the videoconference speed up and down method includes the following steps:

[0019] S102. Detect the video reception quality (packet loss rate) of the video conference after entering the video conference connection state. Use the specified speed up / down strategy to determine whether remote speed up / down is required. When it is necessary to increase or decrease the speed, send a video channel flow control command to the remote end, and the flow control value in the command is the new video encoding rate calculated according to the calculation.

[0020] S104, using the H.245 flow control command to realize video speed up and down, please refer to relevant ITU speci...

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PUM

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Abstract

The method includes following steps: S102, detecting video reception quality of conference TV; S104, based on video reception quality to increase or decrease video coding speed of conference TV. The invention can adapt change of network quality automatically. Under different qualities of network, the method obtains better video effect correspondingly, and raises user's experience.

Description

technical field [0001] The present invention relates to the field of communication, and more particularly relates to a speed-up / down-speed method for a video conference. Background technique [0002] In the video conferencing system using the H.323 framework protocol, when the network conditions change, the system needs to adaptively adjust the video bandwidth according to the monitored network conditions to obtain better subjective effects. When the network quality deteriorates (by monitoring the packet loss caused by network congestion), the system can automatically select the function of reducing the video encoding rate to ensure the quality of video communication. After the network quality is restored, it can monitor this again. Recover bandwidth to enhance video quality and improve user experience. [0003] At present, the main conference TV manufacturers Tide and Polycom also have relevant strategies, but they only support automatic speed reduction, and do not support...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/15H04N7/26H04N19/146
Inventor 薛尧舜范旭彤况成禹柴亚伟
Owner NANJING ZHONGXING XIN SOFTWARE CO LTD
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