PROGRAM STREAM PRODUCTION APPARATUS AND RECORDING AND REPRODUCING APPARATUS EMPLOYING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a program stream generating apparatus capable of efficiently producing a program stream from a compressed video stream adopting a variable bit rate method in a field with high real time performance such as a DVD-RAM.

SOLUTION: A video bit rate in a VOBU (video object unit) is obtained from a video stream subjected to variable bit rate compression for each VOBU, and reference time information (SCR) to be captured in an input buffer and a decoding time stamp/presentation time stamp (DTS/PTS) are calculated on the basis of the bit rate. Audio and video packs are interleaved according to them to produce the program stream. As a result, the audio packs and the video packs are arranged in average and audio and video data for a longer time can be stored in a medium with a limited capacity.

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