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こうしょふじた
5 years ago
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1 (10) - (3) IETF RTSP katto@katto.comm.waseda.ac.jp

3 (1) & WWW

4 cf. CDN (Content Delivery Network) (2) WWW

5 (3) HTTP WWW

6 (1) (1) HTTP HTTP ( HTTP ) (HTTP ) (SureStream ) (TCP ) HTTP (RTSP, MMS )

7 (2) HTTP HTTP Web WWW HTTP

8 (3) HTTP WWW Web RTSP / MMS UDP TCP IP Multicast...

9 (1) WWW ( ) HTTP GET sample.ram HTTP *.ram MIME MIME HTTP 200 OK Content-Type: audio/x-pn-realaudio... sample.ram rtsp://rtsp_server/sample.rm RealPlayer MIME MIME MIME: Multipurpose Internet Mail Extensions encoding

10 (2) (1) rtsp://rtsp_server/sample.smi (*.ram) rtsp://rtsp_server/sample.rm Web (*.smi) (*.rm)

11 (3) (3) (2) Web Web rtsp://rtsp_server/sample.rm (*.smi) ( ) (*.rm) MIME

12 (4) MIME MIME RealSystem audio/vnd.rn-realmedia application/smil audio/x-pn-realaudio audio/x-pn/realaudio-plugin rm smi smil ram rpm Windows Media Technologies video/x-ms-wmv wmv audio/x-ms-wma wma video/x-ms-asf asf asx Apple QuickTime video/quicktime mov qt

13 (1) ( + ) 1 2 n 1 2 n

14 (2) HTTP TCP RTP RTP

15 (3) RealSystem rm ( ) Media Technologies QuickTime wmv, wma, asf mov, qt ( ) (MPEG4) *.rm: RealMedia File Format *.asf: Advanced Streaming Format *.mp3, *.mpg

16 WWW ( ) N.A. RTP N.A. RTCP RTSP SMIL HTTP UDP (or TCP) TCP TCP IP IP

17 IETF RTSP Realtime Streaming Protocol

18 RTSP (1) DESCRIBE C->S (SDP ) ANNOUNCE C->S, S->C GET_PARAMETER C->S, OPTIONS S->C C->S, S->C C->S: S->C: PAUSE C->S PLAY C->S RECORD REDIRECT C->S S->C SETUP C->S SET_PARAMETER C->S, S->C TEARDOWN C->S RFC 2326

19 RTSP (2) GET HTTP (SMIL ) DESCRIBE (SDP) SETUP SDP IP / RTSP OK PLAY OK ( ) ( ) RTP

20 RTSP (3) PAUSE OK PLAY VCR ( ) ( ) VCR ( ) VCR OK ( ) TEARDOWN OK ( )

21 RTSP (4) Init TEARDOWN Ready SETUP PAUSE PLAY TEARDOWN Play RECORD TEARDOWN Record

22 RTSP (5) RTSP C->S S->C C->S S->C DESCRIBE rtsp://foo.com/sample RTSP/1.0 CSeq: 1 Accept: application/sdp, application/rtsl, application/mheg RTSP/ OK CSeq: 1 Content-Type: application/sdp Content-Length: 200 ( SDP) v=0 o= IN IP s=rtsp Session m=video 0 RTP/AVP 31 a=control:rtsp://foo.com/sample SETUP rtsp://foo.com/sample RTSP/1.0 CSeq: 2 Transport: RTP/AVP/UDP;unicast;client_port=6970 RTSP/ OK CSeq: 2 Transport: RTP/AVP/UDP;unicast;client_port=6970;server_port=7200 (SDP ) : 2xx: 3xx: 4xx: ( )

23 RTSP (6) RTSP C->S S->C S->C C->S S->C PLAY rtsp://foo.com/sample RTSP/1.0 CSeq: 3 Range: npt=0- Session: RTSP/ OK CSeq: 3 Session: TEARDOWN rtsp://foo.com/sample RTSP/1.0 CSeq: 4 Session: RTSP/ OK CSeq: 4 Session:

24 RTSP (7) Ethereal RealPlayer

26 URL RealSystem Windows Media QuickTime IP/TV NTT SoftwareVision KDDI QualityMotion MobileMotion WebView

27 RealSystem (1) RealPlayer RealProducer RealServer RealProxy RealPlayer

28 RealSystem (2) RealProducer,.avi,.mov.rm (RealVideo, RealAudio).smi ramgen.ram.rm,.smi RealSystem Server RTSP, PNA* RTP, RDT*, UDP, TCP, HTTP, IP Multicast RealSystem Proxy RTSP, PNA*, HTTP RTP, RDT*, UDP, TCP, HTTP, IP Multicast Media Commerce Suite RealPlayer.rm,.smi,.avi,.mov,.mpg PNA, RDT

29 RealSystem (3) WWW ( ).rm Real Audio RTP / RDT Real Video RTCP RTSP SMIL.smi HTTP.ram UDP (or TCP) TCP TCP IP IP

30 RealSystem (4) SureStream RTSP *.rm 1 RTT TCP R 3 2 p

31 RealSystem (5) SMIL switch HTTP HTTP SMIL ISDN.rm LAN.rm <smil> <body> <switch> <ref <ref src="lan.rm" system-bitrate="150000" /> /> <ref src="isdn.rm" system-bitrate="45000" /> /> <ref src="modem56.rm" system-bitrate="32000" /> /> <ref <ref src="modem28.rm" system-bitrate="20000" /> /> </switch> </body> </smil>

32 Windows Media (1) MediaPlayer MediaEncoder MediaServer MediaPlayer

33 Windows Media (2) Media Encoder,.avi,.mov.wmv,.wma (WM Video, WM Audio),.asf Metafile Creator.asx.wmv,.wma,.asf Media Server MMS* RTP, UDP, TCP, HTTP, IP Multicast Media Rights Manager Media Player.wmv,.wma,.asf,.avi,.mpg MMS

34 Windows Media (3) WWW ( ).wma.wmv MS Audio RTP? MS Video RTCP MMS ASX.asx HTTP UDP (or TCP) TCP TCP IP IP

35 Windows Media (4) MS Audio MS Video MPEG-4 Intelligent Streaming SureStream ASX: <ASX version="3"> <Entry> <ref HREF="mms://mms_server/sample.wmv" /> /> </Entry> </ASX>

36 QuickTime (1) QuickTime QuickTime Pro QuickTime Streaming Server QuickTime Proxy QuickTime

37 QuickTime (2) QuickTime Pro, Sorenson, Qdesign.mov,.qt.mov,.qt.smi.mov ( ) QuickTime Streaming Server.mov,.qt,.smi RTSP RTP, UDP, TCP, HTTP, IP Multicast QuickTime Player.mov,.mpg

38 QuickTime (3) WWW ( ).mov Qdesign Audio RTP Sorenson Video RTCP RTSP SMIL.smi HTTP.mov UDP (or TCP) TCP TCP IP IP

39 Real, MS, Apple Real OS MS Apple ( ) RTSP SMIL Real MPEG-4 Video MS MPEG-4 File Format Apple Windows Media Corona... FastStream ( )

Microsoft PowerPoint - gazotokuron-Streaming.ppt

Microsoft PowerPoint - gazotokuron-Streaming.ppt 画像情報特論 (8) - 放送システム構成プロトコル情報ネットワーク専攻甲藤二郎 E-Mail: katto@waseda.jp システム構成 (1) システム構成 (2) シンプルな構成大規模構成キャプチャ圧縮キャプチャ圧縮放送局 WWW ミラー放送局小規模構成放送局ファイアウォールキャプチャ圧縮 WWW ファイアウォールストリーム CDN (Content Delivery

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