PowerPoint

Internet Radio . B97705021 28 32 40A Quick Look through Web RadioB97705028 Internet Radio.audio servicetransmitted via theInternet

web radio, net radio, streaming radio, e-radio

Webcasting ?! BroadcastingWeb Radio, Streaming MediaContinuous stream of audioNo pause or replay

Its NOT on-demand, NOT podcasting Such Radio StationsSome also has trad. stationBroadcast, and also Webcast

Some are Internet-onlyEx. IM radioWebcast only

Simulation

Good for?!who wants some cross-area radio

a more customized, specialized radio programHuhStreaming.Typically, using lossy codec

010100101100101 encode (&compression) Multimedia Stream Data Frames streaming server Frames are transported with protocols used

HuhStreaming.Data serially be transmitted in TCP/UDP packets, then reassembled at the receiver played a sec or two later.

In audio, common format used includes:MP3, Ogg (Vorbis), WMA,RealAudio, HE-AAC ...

ServersQuickTime BroadcasterPS3 Media ServerSHOUTcast (HTTP and/or multicast)Windows Media EncoderWindows Media Services

P2P and MulticastingFreeCastIceSharePeerCastSaaSbroadManagerInternet TV PlatformDeezerWowza for Amazon EC2 , Amazon IaaS

ClientsMediaMonkeyMplayerStreamripperProtocol IssuesB97705040 TCP Timeout Retry Interactive application?UDP Without controlTime-sensetiveRTSPRTPRTCP specifically designed to stream media over networks Real-time Streaming Protocol (RTSP) TCPUDP Real-time Transport Protocol (RTP) IP Real-time Transport Control Protocol (RTCP)RTP out-of-band Unicast protocols Multicast protocols Unicast IP Multicast TCP/IP

Peer-to-peer (P2P) protocolsBrief introduction to UPnPB97705021 Whats UPnP?UPnPUPnPUPnP AVConclusion Whats UPnP?Universal Plug and PlayExample:

UPnP(Check point)(Service)(Device)

UPnPAddressing(DHCP Auto IP)DiscoveryUPnPControl pointDevice

UPnPDescriptionControl pointControlControl point DeviceEventingDevice PresentationDeviceUPnP AVUPnP Audio VideoMedia ServerMedia RendererControl Point

UPnP AV

Conclusion