METHOD FOR QUICKLY DETERMINING A COMPRESSION FORMAT OF AN AUDIO OR VIDEO FILE AND RELATED PLAYBACK DEVICE THEREOF
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United States of America Patent
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Issued Date -
Jun 19, 2014
app pub date -
Mar 24, 2013
filing date -
Dec 13, 2012
priority date (Note) -
Abandoned
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Abstract
A method for quickly determining a compression format of an audio-video file by a playback device, where the playback device includes a receiver, a detector, a register, and a processor, is disclosed. The method includes receiving an audio-video file by the receiver; using the detector to detect whether a tag portion exists behind a header of the audio-video file; using the processor to skip the tag portion to set a starting point for loading the audio-video file when the detector detects the tag portion; using the processor to filter out audio-video compression formats not compatible with the tag portion; and using the processor to load a first part to the buffer from the starting point, and determine a compression format of the audio-video file according to the first part.
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