Patent ID: 7804505
Filing Date: 2010-09-28
Classification: G11B

Abstract:
1. An information processing apparatus for processing video data, comprising: video data memory that includes a dedicated thumbnail data cache area, the thumbnail data cache area including a dedicated clip area that is configured to store clip thumbnail data and a dedicated sub-clip area that is configured to store sub-clip thumbnail data, the clip area and the sub-clip area being separate areas within the thumbnail data cache area that are respectively configured such that the clip area does not cache sub-clip thumbnail data and the sub-clip area does not cache clip thumbnail data; and a controller configured to control the video data memory to preferentially cache a predetermined range of the video data as priority video data in the clip area, the priority video data including video data currently output from the video data memory to a display device and, video data, which is sequentially related to the currently output video data in the sub-clip area, and which is priority video data corresponding to an edit list having a greater number of reference marker image video data than that of the output video data, wherein, the predetermined range of the video data that is preferentially cached in the clip area as priority video data changes depending on the video data currently output from the video data memory to the display device, the predetermined range of the video data including the video data currently output from the video data memory to the display device, a first predetermined range of sequential video data that immediately precedes the video data currently output from the video data memory to the display device in a management order of the video data, and a second predetermined range of sequential video data that immediately follows the video data currently output from the video data memory to the display device in the management order of the video data.