Apple QuickTime Informações Técnicas descarregar pdf (Página 15)

1 Overview of QuickTime Streaming

Before you set up your QuickTime Streaming Server, learn

what streaming is all about.

What Is Streaming?

“Streaming” is the delivery of media, such as movies and live presentations, over a

network in real time. A computer (a streaming server) sends the media to another

computer (a client computer), which plays the media as it is delivered. With streaming,

no files are downloaded to the viewer’s hard disk. You can stream media at various

rates, from modem to broadband.

Just as you need a web server to host a website, to send streams over the Internet or a

local network, you need a streaming server, which transmits video and audio streams

on request. For small audiences, the same computer can run web server software, mail

server software, and streaming server software. For larger audiences, one or more

computers are typically dedicated as streaming servers.

When a user requests a stream (using client software such as QuickTime Player), the

request is handled using Real-Time Streaming Protocol (RTSP). Streams are sent using

Real-Time Transport Protocol (RTP). A streaming server can create streams from

QuickTime movies stored on a disk, and can transmit live streams to which it has

access.

With QuickTime Streaming Server (QTSS) software, you can deliver:

• Broadcasts of live events in real time

• Video on demand

• Playlists of prerecorded content

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Apple QuickTime Informações Técnicas Página 15