Patent ID: 8165455
Filing Date: 2012-04-24
Classification: G11B,H04N

Abstract:
1. A data processing apparatus that executes processing for editing a stream file recorded on a recording medium according to a predetermined standard format, characterized in that: the stream file has a GOP (Group of Picture) structure, in which a predetermined number of picture frames are collected into one set, data is recorded on the recording medium in units of an access block having a predetermined length, and the standard format defines a length alignment restriction regarding files, the data processing apparatus comprises: when the stream file is divided at an arbitrary division point into a preceding chapter and a succeeding chapter, first means for copying a first extent of the succeeding chapter, formed of data in the proximity of a GOP including the division point, onto the recording medium; second means for creating a stream file of the preceding chapter by giving padding in accordance with the length alignment restriction at a GOP boundary that appears first after the division point; and third means for creating a stream file of the succeeding chapter formed of the first extent and a second extent, from a position where padding has been given at the beginning of the first extent of the succeeding chapter, formed of GOPs before or after the copied segment, or by giving padding in an end region of the second extent in accordance with the length alignment restriction.