Sony Corporation

Hitoshi Naito

Manabu Hatakenaka

A reproduction apparatus is disclosed. A reproduction section reproduces video data from a record medium, the video data being managed in a unit of a clip composed of a plurality of frames which are chronologically successive. A first decode section decodes a first clip which is currently being output and stores the decoded first clip. A second decode section pre-decodes at least a frame which is output at beginning of a second clip adjacent to the first clip in a reproduction order and stores the decoded frame. A control section controls a clip adjacent to a decoded position side of the first clip in the reproduction order to become the second clip for an early region and a late region of a time length based on a center position of a reproduction time length of the first clip.

Reproduction apparatus and reproduction method controlling determination of a next clip to be reproduced

A reproduction apparatus is disclosed. A reproduction section reproduces video data from a record medium. The video data are managed in a unit of a clip composed of a plurality of frames which are chronologically successive. A first decode section decodes a first clip which is currently being output and stores the decoded first clip. A second decode section pre-decodes at least a frame which is output at beginning of a second clip adjacent to the first clip in a reproduction order and stores the decoded frame. A control section which controls a clip adjacent to a decoded position side of the first clip in the reproduction order to become the second clip for an early region and a late region of a time length based on a center position of a reproduction time length of the first clip.

Reproduction apparatus and reproduction method

A playback apparatus is capable of playing back video data at a variable speed ranging from a forward normal speed to a reverse normal speed, the video data having been encoded for compression through inter-frame compression based on predictive coding and recorded on a recording medium that allows random access. The playback apparatus includes a frame buffer configured to temporarily store video data of a plurality of frames; a target-pattern generator configured to generate a target pattern of the frame buffer for a target playback frame to be played back next; a comparator configured to compare a current state of the frame buffer with the target pattern; and a frame-buffer controller configured to extract a frame to be newly decoded and a frame no longer used in the current state of the frame buffer, on the basis of a result of the comparison by the comparator.

Growing community of inventors

Kanagawa, Japan

Hitoshi Naito