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ÇѱÛÁ¦¸ñ(Korean Title) |
ŸÀϵå-µð½ºÇ÷¹ÀÌ ½Ã½ºÅÛ¿¡¼ ½Ç½Ã°£ µ¿¿µ»ó »ó¿µ±âÀÇ ¼³°è ¹× ±¸Çö |
¿µ¹®Á¦¸ñ(English Title) |
Design and Implementation of a Realtime Video Player on Tiled-Display System |
ÀúÀÚ(Author) |
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Giseok Choe
Jeongsoo Yu
Jeonghooni Choi
Jongho Nang
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¿ø¹®¼ö·Ïó(Citation) |
VOL 35 NO. 04 PP. 0150 ~ 0157 (2008. 04) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â ³ôÀº Çػ󵵸¦ Á¦°øÇϱâ À§ÇÏ¿© ¿©·¯ ´ëÀÇ PC¿Í ¸ð´ÏÅ͸¦ ¿¬°áÇÑ Å¸Àϵå-µð½ºÇ÷¹ÀÌ(Tiled-Display) ½Ã½ºÅÛ »ó¿¡¼ µ¿ÀÛÇÏ´Â ½Ç½Ã°£ µ¿¿µ»ó »ó¿µ±â¸¦ ¼³°è ¹× ±¸ÇöÇÏ¿´´Ù. Á¦¾ÈÇÑ µ¿¿µ»ó »ó¿µ±â´Â ÇϳªÀÇ µ¿¿µ»óÀ» ±â°¡ ºñÆ®(Giga bit) Æó¼â ÀÌ´õ³ÝÀ¸·Î ¿¬°áµÈ ¿©·¯ PC¿¡ UDP ¸ÖƼij½ºÆ®¸¦ »ç¿ëÇÏ¿© Àü¼ÛÇÏ°í °¢ ¼ö½Å±â´Â ¹ÞÀº µ¿¿µ»ó µ¥ÀÌŸÀÇ ¾ÐÃàÀ» Ǭ ÈÄ À̹ÌÁö¸¦ ÀÚ½ÅÀÇ ¿µ¿ª¿¡ ºÐÇÒÇÏ¿© ½Ã°£ÀûÀÎ µ¿±âȸ¦ ¸ÂÃß¾î¼ Àç»ýÇÒ ¼ö ÀÖµµ·Ï ¼³°èµÇ¾ú´Ù. º» ½Ã½ºÅÛÀº ¹Ìµð¾î µ¥ÀÌŸÀÇ Àü¼Û Áß ¹ß»ýÇÏ´Â ÆÐŶ ¼Õ½Ç ¹× ÁöÅÍ(jitter) ¹®Á¦¸¦ µ¿¿µ»óÀÇ ºñÆ®·¹ÀÌÆ®¿¡ µû¶ó¼ ¹æ¼Û·®À» °áÁ¤ÇÏ´Â È帧 Á¦¾î ¹æ¹ý°ú ÇÊ¿äÇÑ ¸¸Å ¹Ì¸® ¹ÞÀº µÚ Àç»ýÀ» ½ÃÀÛÇÏ´Â ¹öÆÛ¸µ ¹æ¹ýÀ» ÅëÇÏ¿© ÇØ°áÇÏ¿´À¸¸ç, ¼·Î ´Ù¸¥ PCÀÇ »ó¿µ±â°£ÀÇ µ¿±âȸ¦ À§ÇÏ¿© º°µµÀÇ ¿À¹öÇìµå ¾øÀÌ ½ÃÀÛ ½Ã°£¸¸ µ¿±âÈ ÇÏ°í °¢ PCÀÇ »ó¿µ±âµéÀÇ ¸®ÆÛ·±½º Ŭ·°ÀÇ ¼Óµµ¸¦ µ¿ÀÏÇϵµ·Ï ÇÏ¿© ¾ÈÁ¤ÀûÀÎ ½Ç½Ã°£ ½ºÆ®¸®¹Ö ¹× »ó¿µÀÌ °¡´ÉÇϵµ·Ï ÇÏ¿´´Ù. ¶ÇÇÑ ¿©·¯ Àü¼Û Æ÷¸Ë ¹× ¾ÐÃà Æ÷¸ËÀ» Áö¿øÇϱâ À§ÇÏ¿© Microsoft DirectShow ±¸Á¶»ó¿¡¼ ±¸ÇöµÇ¾ú´Ù. |
¿µ¹®³»¿ë (English Abstract) |
This paper presents a design and implementation of realtime video player that operates on a tiled-display system consisting of multiple PCs to provide a very large and high resolution display. In the proposed system, the master process transmits a compressed video stream to multiple PCs using UDP multicast. All slaves(PC) receive the same video stream, decompress, clip their designated areas from the decompressed video frame, and display it to their displays while being synchronized with each other. A simple synchronization mechanism based on the H/W clock of each slave is proposed to avoid the skew between the tiles of the display, and a flow-control mechanism based on the bit-rate of the video stream and a pre-buffering scheme are proposed to prevent the jitter. The proposed system is implemented with Microsoft DirectX filter technology in order to decouple the video/audio codec from the player. |
Å°¿öµå(Keyword) |
µð½ºÇ÷¹ÀÌ
½Ç½Ã°£ µ¿¿µ»ó »ó¿µ±â
DirectShow
Tiled-Display
Realtime Video Player
DirectShow
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ÆÄÀÏ÷ºÎ |
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