Information processing apparatus and information processing method for reducing the processing load incurred when a reversibly encoded code stream is transformed into an irreversibly encoded code stream

摘要

Disclosed herein is an information processing apparatus including: a partial decoding block configured to generate picture data by partially decoding a reversibly encoded picture code stream; an irreversible encoding block configured to encode irreversibly the picture data generated by the partial decoding block; and a control section configured to control the partial decoding block to determine the picture code stream part to be decoded in such a manner that a target compression rate of the picture data generated by the partial decoding block constitutes the compression rate corresponding to a target code quantity for the irreversible encoding block.