System and method for dynamically switching quality settings of a codec to maintain a target data rate
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United States of America Patent
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Nov 27, 2007
Grant Date -
Aug 26, 2004
app pub date -
Feb 23, 2004
filing date -
Sep 26, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A video compression system includes a compression module to compress each of a plurality of segments of an input signal using an initial quality setting. A rate calculation module calculates, for each compressed segment, a data rate for an output signal that would result from adding a compressed segment to the output signal. A selection module automatically selects, in response to the calculated data rate deviating from a target range, a quality setting for each segment that results in a data rate this is within the target range when a segment compressed using the automatically-selected quality setting is added to the output signal.
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