Method and apparatus for generating and accessing metadata in media file format
First Claim
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1. A method of accessing metadata in a media file format, the method comprising:
- accessing a map node corresponding to at least one track of a media file and a corresponding unit time of the at least one track of the media file, the at least one track and the corresponding unit time being selected by a user in a time-track map of the media file;
extracting position information of media objects corresponding to the accessed map node; and
accessing the media objects within the media file according to the extracted position information,wherein the media file comprises the time-track map and the media objects; and
wherein a plurality of map nodes of the time-track map are distinguished according to a horizontal direction and a vertical direction of the time-track map in a two-dimensional structure.
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Abstract
Provided are a method and apparatus for generating and accessing metadata in a media file format. The method of generating metadata in a media file format includes generating a time-track map composed of a plurality of map nodes that are distinguished according to track and unit time, and generating media objects corresponding to each of the map nodes, in which each of the map nodes includes position information of the corresponding media objects, thereby facilitating real-time reproduction and modification of content.
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Citations
15 Claims
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1. A method of accessing metadata in a media file format, the method comprising:
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accessing a map node corresponding to at least one track of a media file and a corresponding unit time of the at least one track of the media file, the at least one track and the corresponding unit time being selected by a user in a time-track map of the media file; extracting position information of media objects corresponding to the accessed map node; and accessing the media objects within the media file according to the extracted position information, wherein the media file comprises the time-track map and the media objects; and wherein a plurality of map nodes of the time-track map are distinguished according to a horizontal direction and a vertical direction of the time-track map in a two-dimensional structure. - View Dependent Claims (3, 4, 5, 6, 12, 13)
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2. A method of accessing metadata in a media file format, the method comprising:
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accessing a map node corresponding to at least one track of a media file and a corresponding unit time of the at least one track of the media file, the at least one track and the corresponding unit time being selected by a user in a time-track map of the media file format; extracting position information of a link structure corresponding to the map node; accessing the link structure and individual unit data nodes included in the link structure according to the extracted position information of the link structure; extracting position information of media objects corresponding to the individual unit data nodes; and accessing the media objects within the media file according to the extracted position information of the media objects, wherein the media file comprises the time-track map and the media objects; and wherein a plurality of map nodes of the time-track map are distinguished according to a horizontal direction and a vertical direction of the time-track map in a two-dimensional structure. - View Dependent Claims (7, 8, 9, 10, 11, 14, 15)
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Specification