Method and Device for Controlling Video Quality Fluctuation Based on Scalable Video Coding
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United States of America Patent
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Issued Date -
Jun 12, 2014
app pub date -
Jan 4, 2013
filing date -
Jan 4, 2012
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Abandoned
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Abstract
Disclosed are a method and an apparatus for controlling video quality fluctuation based on scalable video coding. The method includes: performing scalable video coding on video data to be transmitted to generate a base layer and at least one enhancement layer; sending the video data after the scalable video coding to a terminal device; determining a currently expected bit rate according to a transmission status of the video data on a currently used channel, the currently expected bit rate being the maximum data transmission bit rate that the predicted currently used channel can sustain; acquiring the currently highest enhancement layer according to the currently expected bit rate, the sum of all bit rates occupied when transmitting video data under the currently highest enhancement layer being no larger than the currently expected bit rate; and sending the video data under the currently highest enhancement layer to the terminal device.
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