Replay apparatus, replay method, recording medium, and computer program

摘要

A replay apparatus calculates an exact play time even during a fast-forward replay operation and a rewind and replay operation. A demultiplexer demultiplexes an input stream into an audio elementary stream, and stores ES data of the audio elementary stream in a data buffer on a frame by frame basis. The demultiplexer calculates the number of main data frames contained in a first frame to each of the frames on a frame by frame basis, and stores the number of main data frames in an ES data information buffer. A decoder calculates a total play time based on the number of main data frames from the ES data information buffer. The invention is applicable to audio and visual apparatuses.