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Retiming media presentations

  • US 9,997,196 B2
  • Filed: 05/17/2011
  • Issued: 06/12/2018
  • Est. Priority Date: 02/16/2011
  • Status: Active Grant
First Claim
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1. A method of defining a media editing application for creating multimedia presentations, the method comprising:

  • defining a composite display area for displaying a graphical representation for each media clip in a set of media clips that are parts of a composite presentation;

    defining a range selector for selecting a portion of a graphical representation of a media clip that is displayed in the composite display area;

    defining a user interface item for presenting at least three selectable predefined retiming operations, wherein each predefined retiming operation performs a different playback speed modification to the media clip;

    defining a retiming engine for applying a selected predefined retiming operation to a range of the media clip that corresponds to the portion of the graphical representation selected by the range selector in order to change a playback timing of the range of the media clip according to the playback speed modification of the selected predefined retiming operation; and

    defining a playback curve that specifies a relationship between the media clip and a playback timing of the media clip,wherein the retiming engine adjusts the playback curve according to a spline interpolation,wherein the spline interpolation is based on one or more keyframes associated with the playback curve, each keyframe associated with a position in the media clip that is determined by the application of the selected predefined retiming operation.

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