Device and method for digital video transcoding
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United States of America Patent
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Feb 9, 1999
Grant Date -
N/A
app pub date -
Jan 21, 1997
filing date -
Jan 21, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A transcoding method and apparatus having an input former, a requantizer, a buffer, a prediction processor, and a composite switch. The transcoder has multiple feedback paths routed through the composite switch that are selected depending upon system requirements. The input former can further include an inverse quantizer, a summer, and a selector. The selector connects different signal paths in the transcoder depending upon the coding mode of the input bitstream. The buffer can include a frame buffer, a QP buffer, and a comparator for generating a control signal. Further features of the transcoding method and apparatus include a frequency weighted thresholder and a computation resource manager.
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