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¿µ¹®Ç¥Áظí Information Technology - Generic Coding of MovingPictures and Associated Audio Information: System
Çѱ۳»¿ë¿ä¾à ÀÌ ±ÔÁ¤µéÀº ÆÐŶ¿¡ ±â¹ÝÇÑ ¸ÖƼ¹Ìµð¾î ´ÙÁßÈ­¸¦ Á¦°øÇϴµ¥, ¿©±â¼­ °¢°¢ÀÇ ES(Elementary Stream, ±âÃÊ ºñÆ®¿­)´Â PES(Packetized Elementary Stream, ÆÐŶȭµÈ ±âÃÊ ºñÆ®¿­)·Î ¸¸µé¾îÁö°í, ±×·± µÚ¿¡ °¢°¢ÀÇ ÆÐŶµéÀº ´ÙÀ½ÀÇ µÎ °¡Áö ºñÆ®¿­(stream)Áß Çϳª·Î¼­ ´ÙÁßÈ­µÈ´Ù: PS(Program Stream, ÇÁ·Î±×·¥ ºñÆ®¿­)´Â °¡º¯±æÀÌ PES ÆÐŶÀ» ´ÙÁßÈ­ÇÑ °ÍÀ¸·Î¼­ ¿À·ù°¡ ¾ø´Â ȯ°æ¿¡¼­ »ç¿ëÇϵµ·Ï ¼³°èµÈ °ÍÀÌ°í, TS(Transport Stream, Àü¼Û ºñÆ®¿­)´Â 188¹ÙÀÌÆ® °íÁ¤ ±æÀÌ ÆÐŶÀ¸·Î ±¸¼ºµÇ¾î ´Ù¾çÇÑ PES ÆÐŶµéÀÇ ´ÙÁßÈ­»Ó¸¸ ¾Æ´Ï¶ó º¹ÇÕÀûÀÎ ÇÁ·Î±×·¥ ´ÙÁßÈ­¿¡ ´ëÇÑ ±â´Éµµ °®°í ÀÖ¾î ¿À·ù°¡ ÀϾ±â ½¬¿î ȯ°æ¿¡¼­ »ç¿ëÇϵµ·Ï ¼³°èµÈ °ÍÀÌ´Ù. ¸ÖƼ¹Ìµð¾î µ¿±âÈ­¿Í ±âÁØ ½Ã°£ º¹¿øÀº ½Ã½ºÅÛ ½Ã°£ Ŭ·Ï°ú È­¸é ÀçÇö/º¹È£È­¸¦ À§ÇÑ Å¸ÀÓ½ºÅÆÇÁ(time-stamp)¸¦ ÀÌ¿ëÇØ ¾òÀ» ¼ö ÀÖ´Ù
¿µ¹®³»¿ë¿ä¾à This Recommendation | International Standard specifies generic methods for multimedia multiplexing, synchronization and timebase recovery. The specifications provide a packet based multimedia multiplexing where each elementary bit stream is segmented into Packetized Elementary Stream (PES), and then respective packets are multiplexed into either of the two streams: Program Stream (PS) which is a multiplex of variable length PES packets and designed for use in error free environments, Transport Stream (TS) which consists of 188 byte fixed length packets, has functionality of multiple program multiplexing as well as multiplexing of various PES packets and is designed for use in error prone environments. The multimedia synchronization and timebase recovery are achieved by time-stamps for system time clock and presentation/decoding.
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