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MASSI id:MASSI

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2023.11 å¼Šç¤¾ãƒ‰ãƒ¡ã‚¤ãƒ³[mpeg.co.jp]ã®å¤‰æ›´(2023/03)ã«ä¼´ã„ã€ã“ã®åº¦(2023/11)ã€å…¨ç¤¾å“¡ã®ãƒ¡ãƒ¼ãƒ«ã‚¢ãƒ‰ãƒ¬ã‚¹ã‚’å¤‰æ›´(mpeg.co.jp)ã™ã‚‹ã“ã¨ã‚’ãŠçŸ¥ã‚‰ã›è‡´ã—ã¾ã™ã€‚ 2023.6 FOR-A CONNECT 2023 å†…è¦§ä¼š(6/22[Thu]ï½ž6/23[Fri])ç„¡äº‹ã«çµ‚ãˆã‚‹ã“ã¨ãŒã§ãã¾ã—ãŸã€‚ã”æ¥å ´é ‚ãã¾ã—ãŸçš†æ§˜ã€ã‚ã‚ŠãŒã¨ã†ã”ã–ã„ã¾ã—ãŸã€‚ 2023.6 FOR-A CONNECT 2023 å†…è¦§ä¼š(6/22[Thu]ï½ž6/23[Fri])ã«åˆã‚ã›ã€å¼Šç¤¾ã«ã¦å†…è¦§ä¼šã‚’é–‹å‚¬ã—ã€æ˜ åƒæ©Ÿå™¨ã¨IT æŠ€è¡“ãŒèžåˆã—ãŸè£½å“ã€ã‚½ãƒªãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ã‚’å±•ç¤ºè‡´ã—ã¾ã™ã€‚ 2023.3 æ ªå¼ä¼šç¤¾æœ‹æ „ã‚¢ã‚¤ãƒ»ãƒ“ãƒ¼ãƒ»ã‚¤ãƒ¼ã¨æ ªå¼ä¼šç¤¾ã‚·ãƒ¼ãƒ‘ã‚¹ã®2ç¤¾ã‚’ã€2023å¹´3æœˆ1æ—¥æ ªå¼ä¼šç¤¾ã‚¢ã‚¤ãƒ»ãƒ“ãƒ¼ãƒ»ã‚¤ãƒ¼ã«çµŒå–¶çµ±åˆã—ã¾ã—ãŸã€‚ ãƒ›ãƒ¼ãƒ ãƒšãƒ¼ã‚¸ã®ãƒ‰ãƒ¡ã‚¤ãƒ³ã‚’mpeg.co.jpã¸å¤‰æ›´ã—ã¾ã—ãŸã€‚
MASSI 2010/10/21
rfc

RTP
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RTP: Some Frequently Asked Questions about RTP
Is RTP a transport protocol or a kind of application protocol? RTP does not ensure real-time delivery. So how come it is called a real-time protocol? Is RTP an unreliable protocol? Are there any mechanisms provided for error recovery in RTP? Can RTP run over IPv6? ATM? Can RTP be used in asymmetric networks? Why doesn't RTP have a length field? Does RTP have a fixed packetization interval? Are all
MASSI 2010/10/20
RTP
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MASSI 2010/10/19
RTP

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RatWiki â€“ Media Tools
MASSI 2010/10/19
RTP
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ãƒ•ãƒªãƒ¼ã§ä½¿ãˆã‚‹RTPãƒ©ã‚¤ãƒ–ãƒ©ãƒª - TECHNERD::INIT
UCLã®ãƒ©ã‚¤ãƒ–ãƒ©ãƒª UCL(University College London)ã®Cè¨€èªžãƒ©ã‚¤ãƒ–ãƒ©ãƒªã§ã™ã€‚ Mboneã®ãƒ„ãƒ¼ãƒ«ç¾¤ã§ä½¿ã‚ã‚Œã¦ã„ã‚‹ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã§ã™ã€‚ ã‚µãƒ³ãƒ—ãƒ«ãªã©ã‚‚ä»˜ã„ã¦ã„ã‚‹ã®ã§æ¯”è¼ƒçš„ä½¿ã„ã‚„ã™ã„ã§ã™ã€‚ RFC3550,RFC3551æº–æ‹ (Obsoletes:RFC1889) http://www-mice.cs.ucl.ac.uk/multimedia/software/common/ ã“ã‚Œã‚’åˆ©ç”¨ã—ã¦ã„ã‚‹ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ Vic ãƒ“ãƒ‡ã‚ªä¼šè°ãƒ„ãƒ¼ãƒ« http://mediatools.cs.ucl.ac.uk/nets/mmedia/wiki/VicWiki Rat éŸ³å£°ä¼é€ã‚·ã‚¹ãƒ†ãƒ http://mediatools.cs.ucl.ac.uk/nets/mmedia/wiki/RatWiki SRTPã®ãƒ©ã‚¤ãƒ–ãƒ©ãƒª RFC3711ã§ææ¡ˆã•ã‚Œã¦ã„ã‚‹Secure Real-time Tr
MASSI 2010/10/19
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rfc

RTP
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RFC 3551: RTP Profile for Audio and Video Conferences with Minimal Control
Network Working Group H. Schulzrinne Request for Comments: 3551 Columbia University Obsoletes: 1890 S. Casner Category: Standards Track Packet Design July 2003 RTP Profile for Audio and Video Conferences with Minimal Control Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please r
MASSI 2010/10/19
rfc

RTP
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Real-time Transport Protocol - Wikipedia
RTSPã‚„H.323ã®é€šä¿¡ãƒ—ãƒãƒˆã‚³ãƒ«ã®ãƒ‡ãƒ¼ã‚¿éƒ¨åˆ†ã«ä½¿ç”¨ã•ã‚Œã‚‹ã€‚ ã»ã¼å…¨ã¦ã®VoIPé–¢é€£è£½å“ã¯ã€RTPã‚’åˆ©ç”¨ã—ã¦ã€éŸ³å£°æƒ…å ±ã‚’IPãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ä¸Šã¸é€å‡ºã—ã¦ã„ã‚‹ã€‚ ã“ã‚Œã¯ã€ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ã‚¹ãƒˆãƒªãƒ¼ãƒ ã‚’é‹ã¶ãŸã‚ã®ãƒ—ãƒãƒˆã‚³ãƒ«ã¨ã—ã¦IETFãŠã‚ˆã³ITUã«ã‚ˆã£ã¦æ¨™æº–åŒ–ã•ã‚Œã¦ã„ã‚‹ã€‚ RTPã¯å…¸åž‹çš„ã«ã¯UDPä¸Šã§åˆ©ç”¨ã•ã‚Œã‚‹[2]ã€‚TCPã¨é•ã£ã¦UDPã®ãƒ˜ãƒƒãƒ€ãƒ¼ã«ã¯ã€Œã‚·ãƒ¼ã‚±ãƒ³ã‚¹ï¼ˆé †åºï¼‰ç•ªå·ã€ã®é …ç›®ãŒå˜åœ¨ã—ãªã„ãŸã‚é †åºã®çµ„ã¿ç«‹ã¦ãŒã§ããªã„ã€‚ã—ã‹ã—ã€RTPãƒ‘ã‚±ãƒƒãƒˆã‚’å—ä¿¡ã—ãŸãƒ›ã‚¹ãƒˆã¯ã€RTPãƒ‘ã‚±ãƒƒãƒˆå†…ã®ãƒ˜ãƒƒãƒ€ãƒ¼ã«ã‚ã‚‹æƒ…å ±ã®ã†ã¡ã€æ™‚åˆ»æƒ…å ±ï¼ˆã‚¿ã‚¤ãƒ ã‚¹ã‚¿ãƒ³ãƒ—ï¼‰ã‹ã‚‰å„ãƒ‘ã‚±ãƒƒãƒˆã®æ™‚é–“çš„ãªé †åºé–¢ä¿‚ã‚’æŠŠæ¡ã—ã€ãƒ‡ãƒ¼ã‚¿ã‚’å†ç”Ÿã™ã‚‹ã“ã¨ãŒã§ãã‚‹ã€‚ï¼ˆè©³ç´°ã¯ #é †åºåˆ¶å¾¡ï¼‰ã€‚ RTPãƒ‘ã‚±ãƒƒãƒˆã‚‚ä»–ã®ãƒ‘ã‚±ãƒƒãƒˆã¨åŒæ§˜ã«ã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚’çµŒç”±ã—ã¦è»¢é€ã•ã‚Œã¦ã„ãä¸ã§ã€å–ªå¤±ã‚„ã€é…é€ã®é…ã‚ŒãŒèµ·ã“ã‚‹ã€‚ã—ã‹ã—ã€æ˜ åƒã‚„éŸ³å£°ã®ãƒ‡ãƒ¼ã‚¿ï¼ˆã‚¹ãƒˆãƒªãƒ¼ãƒŸãƒ³ã‚°ãƒ¡ãƒ‡ã‚£ã‚¢ãƒ‡ãƒ¼ã‚¿ï¼‰ã¯ã€ãƒ‡
MASSI 2010/10/19
RTP
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RTP(Realtime Transport Protocol):Geekãªãºãƒ¼ã˜
ã“ã“ã§ã¯ã€RTP(Realtime Transport Protocol)ã«é–¢ã™ã‚‹èª¬æ˜Žã‚’è¡Œã„ã¾ã™ã€‚ RTPã¯ã€ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆã§ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ãƒ‡ãƒ¼ã‚¿ï¼ˆä¸»ã«ãƒžãƒ«ãƒãƒ¡ãƒ‡ã‚£ã‚¢ãƒ‡ãƒ¼ã‚¿ï¼‰ã‚’è»¢é€ã™ã‚‹ãŸã‚ã®ãƒ—ãƒãƒˆã‚³ãƒ«ã§ã™ã€‚ RTPãŒæœ€ã‚‚åˆ©ç”¨ã•ã‚Œã¦ã„ã‚‹ã®ã¯ã€ãƒ“ãƒ‡ã‚ªè»¢é€ï¼ˆã‚¹ãƒˆãƒªãƒ¼ãƒŸãƒ³ã‚°ï¼‰ã‚„VoIPãªã©ã§ã™ã€‚ RTPæ¦‚è¦ RTPã‚’éžå¸¸ã«ç°¡å˜ã«è¨€ã£ã¦ã—ã¾ã†ã¨ã€ã€ŒUDPï¼ˆUser Datagram Protocolï¼‰ã®ã†ãˆã«RTPãƒ˜ãƒƒãƒ€ã‚’ã¤ã‘ã¦ãƒ‡ãƒ¼ã‚¿ã‚’é€å—ä¿¡ã™ã‚‹ã€‚ãƒ‘ã‚±ãƒƒãƒˆãƒã‚¹ã‚„RTT(Round Trip Time)ãªã©ã®æƒ…å ±ã‚’RTCPã‚’ä½¿ã£ã¦å–å¾—ã™ã‚‹ã€‚ã€ã§ã™ã€‚ RTPã¯ä¸‹ãŒUDPã§ã‚ã‚‹å¿…è¦ã¯å…¨ãç„¡ãã€IPã®ä¸Šã«ç›´æŽ¥ä¹—ã›ãŸã‚Šã€ATMã®ä¸Šã«ä¹—ã›ãŸã‚Šã™ã‚‹äº‹ã‚‚ã§ãã‚‹ã®ã§ã€ã“ã®è¡¨ç¾ã¯æ£ã—ãã¯ç„¡ã„ã®ã§ã™ãŒã€ç¾çŠ¶ã®ç”¨é€”ã ã¨å¤§ä½“ã“ã‚Œã§èª¬æ˜Žã§ãã¦ã—ã¾ã†ã¨æ€ã„ã¾ã™ã€‚ RTPã®ç‰¹å¾´çš„ãªéƒ¨åˆ†ã¨ã—ã¦ã¯ã€ã€ŒRTPã¯å˜ç‹¬ã§ã¯ä¸ååˆ†ãªãƒ—ãƒãƒˆã‚³ãƒ«ã§
MASSI 2010/10/19
TCP

RTP

UDP
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