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Ç¥ÁعøÈ£ [ÆóÁö] TTAS.KO-04.0063 ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2007-12-26 ÃÑÆäÀÌÁö 17
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MPEG-4 System °ú ISO base media file format À» ±â¹ÝÀ¸·Î Àü´ÞÇϱâ À§ÇÑ ¹æ¹ýÀ» ±â¼úÇÑ´Ù.
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hierarchical ÇÑ ÄÜÅ×ÀÌ³Ê ±¸Á¶·Î Á¤ÀÇµÇ¾î °´Ã¼·Î Ç¥ÇöµÈ ¹Ìµð¾î µ¥ÀÌÅ͸¦ È¿°úÀûÀ¸·Î ´ÙÁßÈ­ ÇÒ
¼ö ÀÖ´Â ±¸Á¶ÀÌ´Ù. º» Ç¥ÁØ¿¡¼­´Â MPEG-4 ½Ã½ºÅÛ ±Ô°ÝÀ» È®ÀåÇÏ¿© µð¹ÙÀ̽º Á¦¾î Á¤º¸¸¦ µ¶¸³µÈ
°´Ã¼·Î Ç¥ÇöÇÏ´Â ¹æ¹ý°ú ISO base file format À» È®ÀåÇÏ¿© ÀÌ·¯ÇÑ µð¹ÙÀ̽º Á¦¾î Á¤º¸¸¦
È¿°úÀûÀ¸·Î Àü´ÞÇÒ ¼ö ÀÖ´Â ¹æ¹ý¿¡ ´ëÇÏ¿© ±â¼úÇÑ´Ù.
¿µ¹®³»¿ë¿ä¾à To define a new media format for multi-device control, we need to construct a metadata
structure containing device control information. The first phase is to design the commonly
used metadata structure to every type of devices. The second phase is to define detail
control parameters which are specific to each type of device. In this technical standard draft,
we propose an efficient method to store this device control information in a existing media
format by expanding MPEG-4 file format. The main idea of this proposal is that the device
control information is one of the media stream such as audio stream or video stream.
Fortunately, the MPEG-4 file system is well designed to include any type of media steam by
specifying decoder specific information. Also the MPEG-4 file format has a hierarchical
structure based on various information containers. In this standard draft, we explain the
method to store device control information in the media format by extending MPEG-4 file
system.
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