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HIERARCHICAL AND REDUCED INDEX STRUCTURES FOR MULTIMEDIA FILES

  • US 20090132599A1
  • Filed: 11/17/2008
  • Published: 05/21/2009
  • Est. Priority Date: 11/16/2007
  • Status: Active Grant
First Claim
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1. A method of playing back content by a playback device stored in a media file, the method comprising:

  • providing a media file to a playback device, the media file having content data, cue data and a hierarchical index, the content data having a plurality of media frames, the cue data being associated with each frame of the plurality of frames and the hierarchical index being associated with a subset of the cue data;

    decoding the content data by a playback device;

    displaying content on a display screen from the decoded content data;

    receiving a user request;

    locating the index based on the user request; and

    decoding one or more media frames from the subset of the cue data based on the located index.

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