MACROMEDIA FLASH MEDIA SERVER 2-SERVER-SIDE ACTIONSCRIPT LANGUAGE Installationsanleitung PDF herunterladen (Seite 8)

Adobe AIR (version 1.0 or later)

AdobeAIRisacross-operatingsystemruntimethatenablesyoutouseyourexistingHTML,

Ajax,Flex,orFlashwebdevelopmentskillsandtoolstobuildanddeployrichInternetapplica-

tions to the desktop.

AdobeAIRapplicationssupportnativedesktopintegration,includingclipboardanddrag-and-

dropsupport,localleinput/output,systemnotication,andmore.AdobeAIRapplicationscan

connect to Flash Media Server to stream audio and video, or share data, just as SWF les do.

Adobe Media Player (version 1.0 or later)

AdobeMediaPlayerisafreestand-aloneapplicationbuiltontheAdobeAIRplatformthat

provides customized video delivery, branded channels, advanced usage tracking, and digital

rightsmanagementsupport.FlashMediaInteractiveServerprovidesthemechanismthatallows

AdobeMediaPlayertostreammedia,trackandlogclientevents,andviewinghistory.

Adobe Flash Lite (version 3.0 or later)

FlashMediaServer3canstreamtodevicesthatsupporttheFlashLite3mobileplatform.is

support opens up possibilities for interactive streaming to new markets, with powerful features:

• TrueFLVandMP3streaming(On2VP6-E,SorensonSpark,MP3codecs)

• ActionScript2.0API(NetConnectionandNetStream)

• DeviceIDdetectiontoallowoptimizationforspecicdevices

• SupportforReal-TimeMessagingProtocol(RTMP)tunneling

Flash Media Server 3 will support both prerecorded and live streaming. e same video

experience available in the browser can now be delivered to mobile devices supporting

FlashLite3.

How Flash Media Server 3 works

Flash Media Server solutions have both a server-side and a client-side architecture. e client

experienceisdeployedasaSWForAIR,createdineitherFlashorFlex.Clientsrunwithinaweb

browser(FlashPlayer),mobiledevice(FlashLite3)orasadesktopapplication(AdobeAIR).A

clientcouldalsobeanotherFlashMediaServer,AdobeColdFusion®8,AdobeFlashMedia

Encoder,orlicensedthird-partytechnologythatcanstreamorcommunicatewithFlashMedia

Server. e server manages client connections and security, reads and writes to the server’s le

system, and performs other tasks.

eclientistheinitiatoroftheconnectiontotheserver.Onceconnected,theclientcan

communicatewiththeserverandwithotherconnectedclients.Clientsconnecttoinstances of

applications;forexample,achatapplicationmayhavemanyrooms.Eachroomisaninstanceof

thechatapplication.Multipleinstancesofanapplicationcanberunningsimultaneously.Each

application instance has its own unique name and provides unique resources to its connected clients.

Flash Media Server communication protocol (RTMP)

FlashMediaServercommunicateswithitsclientsusingtheAdobepatented,RTMPover

TransmissionControlProtocol(TCP)thatmanagesatwo-wayconnection,allowingtheserver

tosendandreceivevideo,audio,anddatabetweenclientandserver.InFlashMediaServer3,

youalsohavetheoptiontousestrongerstreamsecuritywithencryptedRTMP(RTMPE).

RTMPEiseasytodeployandfasterthanusingSecureSocketLayer(SSL)forstreamencryption.

RTMPEisjustoneoftherobustnewsecurityfeaturesinFlashMediaServer3.

erearevecongurationsofRTMPwithFlashMediaServer3:

• RTMP—isisthestandard,unencryptedRTMP.edefaultportis1935;ifaportisnot

specied,theclientwillattempttoconnecttoportsinthefollowingorder:1935,443,andthen

viaRTMPTonport80.Port1935isaregisteredIANAport.

• RTMPT—isprotocolisRTMP“tunneled”overHTTP;thismeansthattheRTMPdatais

encapsulatedasvalidHTTPdata.edefaultportis80.

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