Media-Editing Application with Video Segmentation and Caching Capabilities

Abstract

For a media-editing application that creates a composite media presentation, some embodiments of the invention provide a method for reducing rendering operations by dividing the composite presentation into several segments and rendering the segments in a manner that allows for these segments to move with respect to each other without losing the rendered results. The media-editing application defines portions of a media presentation as segments. When the media-editing application renders a segment of the media presentation, the application computes an identifier that uniquely identifies the segment and then uses this identifier to store and later retrieve the rendered result for the segment. The application in some embodiments computes the identifier based on a set of attributes of the segment, and stores the results of rendering the segment at a location that is uniquely identifiable in a storage structure by the identifier.

Description

BACKGROUND[0001]Digital graphic design, image editing, audio editing, and video editing applications (hereafter collectively referred to as media content editing applications or media-editing applications) provide graphical designers, media artists, and other users with the necessary tools to create a variety of media content. Examples of such applications include Final Cut Pro® and iMovie®, both sold by Apple Inc. These applications give users the ability to edit, combine, transition, overlay, and piece together different media content in a variety of manners to create a resulting media project. The resulting media project specifies a particular sequenced composition of any number of text, audio, image, and / or video content elements that is used to create a media presentation.[0002]Typically, a user previews portions of a media presentation while creating the presentation in order to see if the media content of the media presentation would be presented as the user desires. However,...

AI Technical Summary

Benefits of technology

[0005]For a media-editing application that creates a composite media presentation, some embodiments of the invention provide a novel method for reducing rendering operations by dividing the composite presentation into several segments and rendering the segments in a manner that allows for these segments to move with respect to each other with

Problems solved by technology

However, some portions of the media presentation require a lot of processing capability for a media-editing application to playback in real-time for previewing.

When the required processing capability exceeds that of

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