Method and apparatus for encoding/decoding
First Claim
1. A decoding method comprising:
- receiving multimedia data by a decoding apparatus, the multimedia data including a file type area having information on a file format, a data area including a plurality of media data, and a media information area including a slide show area and an audio track area corresponding to image data and audio data in the data area, respectively, the slide show area including a media area and a track meta area, the media area of the slide show area including reproduction duration information, position information, and size information on a plurality of image data, each reproduction duration information, position information, and size information in the media area of the slide show area being allocated for each image data;
parsing the multimedia data, the media information area of the multimedia data being parsed first;
extracting timing information related to the reproduction duration information from the media area of the slide show area of the media information area; and
reproducing the image data and the audio data in the data area, based on the extracted timing information,wherein the image data and the audio data in the data area are dependent on one timeline, andwherein each track meta area of the slide show area and the audio track area includes an XML format data on meta information.
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Abstract
The present invention relates to a multimedia data decoding method and apparatus. The decoding method includes receiving multimedia data including a data area including a plurality of media data areas each corresponding to a plurality of media data; and a media information area including a plurality of track areas each corresponding to the plurality of media data areas; reading the media information area; extracting timing information for sequentially reproducing the media data comprised in the media data area, from the track area; and reproducing the media data, using the media data of the data area and the extracted timing information. According to the present invention, the multimedia data decoding method and apparatus has an effect of being capable of constructing a slide show by only a small amount of multimedia data. Thus, a time taken to process and transmit the multimedia data can reduce.
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Citations
17 Claims
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1. A decoding method comprising:
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receiving multimedia data by a decoding apparatus, the multimedia data including a file type area having information on a file format, a data area including a plurality of media data, and a media information area including a slide show area and an audio track area corresponding to image data and audio data in the data area, respectively, the slide show area including a media area and a track meta area, the media area of the slide show area including reproduction duration information, position information, and size information on a plurality of image data, each reproduction duration information, position information, and size information in the media area of the slide show area being allocated for each image data; parsing the multimedia data, the media information area of the multimedia data being parsed first; extracting timing information related to the reproduction duration information from the media area of the slide show area of the media information area; and reproducing the image data and the audio data in the data area, based on the extracted timing information, wherein the image data and the audio data in the data area are dependent on one timeline, and wherein each track meta area of the slide show area and the audio track area includes an XML format data on meta information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 13, 14, 16)
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9. A decoding apparatus comprising:
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a processor coupled to a memory; a data input unit configured to receive, via the processor, multimedia data, the multimedia data including a file type area having information on a file format, a data area including a plurality of media data, and a media information area including a slide show area and an audio track area corresponding to image data and audio data in the data area, respectively, the slide show area including a media area and a track meta area, the media area of the slide show area including reproduction duration information, position information, and size information on a plurality of image data, each reproduction duration information, position information, and size information in the media area of the slide show area being allocated for each image data; a timing information extractor configured to parse, via the processor, the media information area from the received multimedia data, and to extract timing information related to the reproduction duration information from the media area of the slide show area of the media information area; and a reproducing unit configured to reproduce, via the processor, the image data and the audio data in the data area, based on the extracted timing information, wherein the image data and the audio data in the data area are dependent on one timeline, and wherein each track meta area of the slide show area and the audio track area includes an XML format data on meta information. - View Dependent Claims (10, 11, 12, 15, 17)
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Specification