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Apple QuickTime Streaming Server Darwin Streaming Server manual Glossary

Models: QuickTime Streaming Server Darwin Streaming Server

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Glossary

Glossary

This glossary deﬁnes terms and spells out abbreviations you may encounter while working with online help or the QTSS and DSS Administrator’s Guide. References to terms deﬁned elsewhere in the glossary appear in italics.

A

access file A text ﬁle called qtaccess that contains information about users and groups who are authorized to view media in the directory in which the access ﬁle is stored.

administrator A user with server or directory domain administration privileges.

administrator computer A computer with server administrator software installed that can be used to conﬁgure and manage another computer.

announced broadcast A method such as Automatic Unicast (Announce) enabling a broadcaster to negotiate with a server to accept a broadcast.

AppleScript A scripting language with English-like syntax, used to write script ﬁles that can control your computer. AppleScript is part of the Mac operating system and is included on every Macintosh.

Automatic Unicast (Announce) A method of delivering a broadcast to a streaming server in which an SDP ﬁle is automatically copied and kept current on the server. A broadcast user name and password must be created before starting such a broadcast.

AVI (Audio Visual Interleave) A Windows video ﬁle format.

B

bandwidth The capacity of a network connection, measured in bits or bytes per second, for carrying data.

bit A single piece of information, with a value of either 0 or 1.

bit rate The speed at which bits are transmitted on a network, usually expressed in bits per second.

broadcast Transmitting one copy of a stream over the whole network.

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Apple QuickTime Streaming Server Darwin Streaming Server manual Glossary

Contents

QuickTime Streaming Server Darwin Streaming Server Administrator’s Guide2002 Apple Computer, Inc. All rights reserved K Apple Computer, IncAdobe and PostScript are trademarks of Adobe Systems Incorporated RealAudio is a trademark of Progressive Networks, IncPreface ContentsQuickTime Streaming 1 Getting StartedWorking With Connected Users MediaPreparing Audio Relays3 Setup Example Installing SSLAdding or Deleting Groups The Streaming Server Computer Crashes or Is RestartedGlossary Index Setting It Up Creating a Web Page for Easy AccessWhat Is Streaming? QuickTime StreamingAbout Streaming Servers Simple Setup for Live Video Live Versus On-Demand Delivery8 Preface QuickTime Streaming How Does Streaming Work?10 Preface Multicast Versus UnicastRelaying Streamed Media The Total Streaming SolutionThe QuickTime suite is made up of the following components QTSS and DSS 4.1 added these features For More Information14 Preface Getting Started Setup OverviewClient Computer Requirements Hardware and SoftwareApple recommends Setting Up Your Streaming Server where hostname is the host name or IP address of your server Testing Your Setup8 Click Finish The streaming server is now active and ready to stream mediaPage User Interface Working With Streaming Server AdminManaging Your Streaming Server Viewing Streaming Status Starting or Stopping Streaming ServiceWorking With Connected Users 22 Chapter2 Make the changes you want and click Save Changes m To see the general settings, click General Settings You can view and change port settings in Streaming Server Admin Streaming MP3 requests log mp3access.log Error Log Error.logStreaming admin server requests log streamingadminserver.log Other supported platforms /var/streaming/LogsAbout Instant-On Streaming MediaPreparing Prerecorded Media Other supported platforms /var/streaming/Playlists/playlistnameBe sure to copy the ﬁles into the directory you speciﬁed for streaming New ﬁle with only hint tracks myﬁle.mov Original, non-hinted ﬁle myﬁle.avi2 Export the ﬁle by choosing Export from the File menu 1 Open QuickTime Player on a Mac OS X, Mac OS, or Windows computer 3 Copy the SDP ﬁle to your streaming server computer Setting Up a Web Page With Streamed Media rtsptext rtsp//my.streamingserver.com/sample.mov pls ﬁles using the user’s MP3 player automaticallyThe M3U ﬁle contains a single line of text in this format A PLS ﬁle uses this formatPlaylists To stop broadcasting a playlist, click the Stop button Changing a Playlist Deleting a Playlist36 Chapter To see the Relay Settings pane, click Relay Settings RelaysWorking With Relay Settings 3 If the playlist is running, click the Stop button6 Click Save Changes to add the source to your relay settings 1 Click Relay Settings 2 Click New Relay or Edit Default RelaySetting Up Relays 4 Complete the ﬁelds for DestinationSecurity Creating an Access File Controlling Access to Streamed MediaSave the access ﬁle as plain text not .rtf or any other ﬁle format 2 Enter a password for the user and reenter it when prompted To create a user account on the streaming server Installing SSLwhere someUserName is a broadcaster user name of your choosing Problems m Check the error log Users See Error Messages While Streaming Media m Turn off other servicesm Reduce the maximum number of connections or the maximum throughput m Make sure users have the correct URLYou’re Having Problems With Playlists Users Can’t See Live Streamed Media48 Chapter 1 Log in to the server as an administrator AdvancedThis section answers questions raised by more advanced users tells the server to bind to the local IP addressssl=0 bind=IP address to bind to Library/QuickTimeStreaming/Config/streamingserver.xmlPREF NAME=bindipaddr0PREF \Program Files\Darwin Streaming Server\streamingserver.xmlusr/sbin/streamingadminserver.pl To kill the QuickTime Streaming Server QTSS processesTo kill and restart a process To get QTSS to re-read its preferences 52 ChapterThis will produce the following Page Streaming Presentations-Live and On Demand Setup Example56 Chapter The streaming setup in this example, shown above, has these featuresStep 1 Prepare the Location Setting It UpStep 2 Prepare the Network How much random access memory RAM is needed? Step 3 Set Up Your Streaming ServerdataRateInBits / 8 bits * timeInSeconds = file size Can the server computer be dedicated solely to streaming?Example for a one-hour 300-Kbps stream 1 Click Port Settings in Streaming Server Admin The Port Settings page displays2 Click the “Streaming on Port 80” checkbox, then click Save Changes Step 4 Set Up for a Live Webcast For the example setup, the following items are neededm good-quality DV camera m sturdy tripod on which to mount the camera m portable lighting kitHere are other desirable features Step 5 Set Up Broadcaster Creating a Web Page for Easy Access Archiving the Live Presentation Shooting the Live Presentation8 Click Import again when you want to stop importing Page Glossary byte Eight bits rules for linking and exchanging ﬁles on a network instructions to a musical synthesizer N, O Page tween track A track that modiﬁes the display of other tracks 76 Glossary Index stopping unable to connect to 47 viewing browsers. See web browsers “Error Log” setting 26 errors killing QTSS processes symbolic links within 52-53 “Media Directory” setting 24 media ﬁles MPEG-4 See also streaming servers “Sequential Looped” mode 34, 49 “Sequential” mode passwords. See passwords proxiesSSL Secure Sockets Layer 24, 43 SSL certiﬁcate 84 Indexvalid-user tag 41 video See also errors