Playback apparatus, integrated circuit, and playback method considering trickplay

  • US 8,548,308 B2
  • Filed: 11/17/2009
  • Issued: 10/01/2013
  • Est. Priority Date: 11/18/2008
  • Status: Active Grant
First Claim
Patent Images

1. A playback apparatus, a playback mode of which can be switched between 3D mode to show a user video frames stereoscopically and 2D mode to show the user video frames monoscopically, the playback apparatus comprising:

  • a read unit operable to read a digital stream that includes a left-view video stream and a right-view video stream from a recording medium;

    a mode storage unit storing a current playback mode;

    a dimension determining unit operable to determine whether the digital stream read from the recording medium supports 3D mode;

    a demultiplexer operable, when (i) the digital stream supports 3D mode and (ii) the current playback mode is 3D mode, to separate both the left-view video stream and the right-view video stream from the digital stream, and when condition (i) or (ii) is not met, to separate one of the left-view video stream and the right-view video stream from the digital stream;

    a video decoder operable to obtain video frames to show stereoscopically or monoscopically by decoding the separated video stream; and

    a playback control unit operable to control the video decoder so that, when trickplay is requested while the current playback mode is 3D mode, a same video frame output from the video decoder is written on both a left-view video plane and a right-view video plane while maintaining the playback mode in 3D mode, whereinthe same video frame is a video frame obtained by decoding one of the left-view video stream and the right-view video stream separated from the digital stream, andthe left-view video stream and the right-view video stream being output without shifting coordinates.

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