Code rate smoothing method of video live transmission through wireless network
A real-time transmission and wireless network technology, applied in transmission system, wireless communication, network traffic/resource management, etc., to achieve the effect of solving video freeze, improving fluency, and saving storage space
Inactive Publication Date: 2014-07-09
BEIJING XINWEI TELECOM TECH +1
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The invention provides a code rate smoothing method of video live transmission through wireless network. The method comprises the steps that the periodic statistics of transmission delay of video frames is conducted, when the transmission delay gets smaller, playing buffer is turned down through playing speeding up, when the transmission delay gets bigger, the playing buffer is turned up through playing slowing down, and the adjusting step length of the playing speeding up and the adjusting step of the playing slowing down are codetermined by changing of the transmission delay, the playing buffer depth and timestamp information. By means of the code rate smoothing method of video live transmission through wireless network, the statistics of the transmission delay of the video frames can be conducted, the wireless network state is perceived according to time delay information, the minimum video time delay is further found out according to the actual network condition to achieve the smooth effect, and balance between real-time performance and fluency performance of video streaming is achieved.
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