VARIABLE BITRATE ENCODING
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United States of America Patent
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Issued Date -
Jun 11, 2015
app pub date -
Dec 9, 2013
filing date -
Dec 9, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A video processing device encodes an input video stream by dynamically varying an output bit rate for the resulting encoded video stream based on a length of the input video stream. A rate control module receives at least two parameters from an application requesting that the video stream be encoded: a target average bit rate (ABR) and a length of the video stream to be encoded. The rate control module varies the output bit rate according to the complexity of video information in the video stream and the remaining length of the video stream that has not been encoded. In addition, the rate control module constrains the output bit rate to ensure that the ABR is achieved for the entire encoded video stream.
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