Patent ID: 7433574
Filing Date: 2008-10-07
Classification: G11B,H04N

Abstract:
1. A stream data recording apparatus which records, in a stream data storing part, stream data that includes video coding units corresponding to groups of pictures of an MPEG system that are obtained by coding a video signal according to a predetermined digital coding scheme and audio coding units corresponding to audio access units of an MPEG system that are obtained by coding an audio signal according to a predetermined digital coding scheme, comprising: a stream data input part inputting the stream data; a type-boundary detecting part detecting boundaries of video information and audio information contained in the stream data, the boundaries being a head of each of the video coding units contained in the stream data and a head of a series of the audio coding units corresponding to each of the video coding units, and outputting boundary information indicating positions of the boundaries; a recording part sectioning the stream data at the boundaries detected for the head of each of the video coding units and the boundaries detected for the audio coding units according to the boundary information, while maintaining an order of each of the video coding units and each of the audio coding units in the stream data, and recording the stream data in the stream data storing part, so that heads of the stream data being sectioned coincide with heads of access units of a randomly accessible recording medium that is provided in the stream data storing part, respectively; a sample collecting part collecting video data locating information relating to storage locations of heads of at least a part of the video coding units and collecting audio data locating information relating to storage locations of heads of series of audio coding units corresponding to said part or more of the video coding units, the collecting done in correspondence to recording the stream data in the recording part; and a managing information storing part storing managing information that includes video data locating information indicating a location where the head of each of video coding units are stored and audio data locating information indicating a location where the head of a series of audio coding units corresponding to each of the video coding units are stored.