| 摘要 |
PURPOSE: A contraction information of multimedia digital content is provided to quickly and accurately select desired content from search list. CONSTITUTION: A video clip/low quality audio extracting unit(165) extracts and stores various information including video and audio or only video. The video clip/low quality audio extracting unit extracts color based on extraction information. A video bit rate classified encoding unit(190) generates video contraction information having various qualities by encoding extracted information again using codex information.
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