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Apple QuickTime Streaming Server Darwin Streaming Server manual

Models: QuickTime Streaming Server Darwin Streaming Server

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tween track A track that modiﬁes the display of other tracks.

static IP address An IP address that is assigned to a computer or device once and is never changed.

streaming Delivery of video or audio data over a network in real-time, as a stream of packets instead of a single ﬁle download.

T

TCP (Transmission Control Protocol) A method used along with the Internet Protocol (IP) to send data in the form of message units between computers over the Internet. IP takes care of handling the actual delivery of the data, and TCP takes care of keeping track of the individual units of data (called packets) into which a message is divided for efﬁcient routing through the Internet.

temporal compression Image compression that is performed between frames in a sequence. This compression technique takes advantage of redundancy between adjacent frames in a sequence to reduce the amount of data that is required to accurately represent each frame in the sequence. Sequences that have been temporally compressed typically contain key frames at regular intervals.

track A QuickTime data structure that represents a single data stream in a QuickTime movie. A movie may contain one or more tracks. Each track is independent of other tracks in the movie and represents its own data stream.

TTL (time-to-live)A multicast broadcast has a TTL value that is set by the user. It speciﬁes the number of routers the stream will pass through before it stops propagating over the network.

tween track A track that modiﬁes the display of other tracks.

U

UDP (User Datagram Protocol) A data transport protocol that does not support retransmission of lost packets, sometimes used instead of TCP/IP.

unicast The one-to-one form of streaming. If RTSP is provided, the user can move freely from point to point in an on-demand movie.

URL (Universal Resource Locator) A uniform way of specifying locations on the Internet or a local ﬁle system.

V, W, X, Y, Z

VBR (variable bit rate) A method of compressing data that takes advantage of changes in the media’s data rate.

WAV A Windows format for sound ﬁles.

webcast A broadcast of live video or audio on the Internet.

Glossary 75

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Apple QuickTime Streaming Server Darwin Streaming Server tween track A track that modiﬁes the display of other tracks

Contents

QuickTime Streaming Server Darwin Streaming Server Administrator’s GuideRealAudio is a trademark of Progressive Networks, Inc K Apple Computer, Inc2002 Apple Computer, Inc. All rights reserved Adobe and PostScript are trademarks of Adobe Systems Incorporated1 Getting Started ContentsPreface QuickTime StreamingRelays MediaWorking With Connected Users Preparing AudioThe Streaming Server Computer Crashes or Is Restarted Installing SSL3 Setup Example Adding or Deleting GroupsGlossary 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 The streaming server is now active and ready to stream media Testing Your Setupwhere hostname is the host name or IP address of your server 8 Click FinishPage User Interface Working With Streaming Server AdminManaging Your Streaming Server 22 Chapter Starting or Stopping Streaming ServiceViewing Streaming Status Working With Connected Users2 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 Other supported platforms /var/streaming/Logs Error Log Error.logStreaming MP3 requests log mp3access.log Streaming admin server requests log streamingadminserver.logOther supported platforms /var/streaming/Playlists/playlistname MediaAbout Instant-On Streaming Preparing Prerecorded MediaBe 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 A PLS ﬁle uses this format pls ﬁles using the user’s MP3 player automaticallyrtsptext rtsp//my.streamingserver.com/sample.mov The M3U ﬁle contains a single line of text in this formatPlaylists To stop broadcasting a playlist, click the Stop button Changing a Playlist Deleting a Playlist36 Chapter 3 If the playlist is running, click the Stop button RelaysTo see the Relay Settings pane, click Relay Settings Working With Relay Settings4 Complete the ﬁelds for Destination 1 Click Relay Settings 2 Click New Relay or Edit Default Relay6 Click Save Changes to add the source to your relay settings Setting Up RelaysSecurity 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 m Make sure users have the correct URL m Turn off other servicesUsers See Error Messages While Streaming Media m Reduce the maximum number of connections or the maximum throughputYou’re Having Problems With Playlists Users Can’t See Live Streamed Media48 Chapter tells the server to bind to the local IP address Advanced1 Log in to the server as an administrator This section answers questions raised by more advanced users\Program Files\Darwin Streaming Server\streamingserver.xml Library/QuickTimeStreaming/Config/streamingserver.xmlssl=0 bind=IP address to bind to PREF NAME=bindipaddr0PREFusr/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 Can the server computer be dedicated solely to streaming? Step 3 Set Up Your Streaming ServerHow much random access memory RAM is needed? dataRateInBits / 8 bits * timeInSeconds = file sizeExample 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 m sturdy tripod on which to mount the camera m portable lighting kit For the example setup, the following items are neededStep 4 Set Up for a Live Webcast m good-quality DV cameraHere 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 84 Index passwords. See passwords proxies“Sequential Looped” mode 34, 49 “Sequential” mode SSL Secure Sockets Layer 24, 43 SSL certiﬁcatevalid-user tag 41 video See also errors