Administrator’s Guide
Table Of Contents
- Administrator’s Guide
- Contents
- QuickTime Streaming
- Getting Started
- Managing Your Streaming Server
- User Interface
- Working With Streaming Server Admin
- Viewing Streaming Status
- Starting or Stopping Streaming Service
- Working With Connected Users
- Changing Server Settings
- Controlling QuickTime Broadcaster Remotely
- Working With General Settings
- Working With Port Settings
- Working With Log Settings
- Viewing Error Logs and Access History
- Media
- About Instant-On Streaming
- Preparing Prerecorded Media
- Preparing Audio
- Streaming Media Files With Multiple Sources
- Streaming File Formats Like .avi, .text, and .wav
- Exporting a QuickTime Movie as a Hinted Movie
- Improving the Performance of Hinted Movies
- Session Description Protocol (SDP) Files
- Streaming Live Media
- Viewing Streamed Media From a Client Computer
- Setting Up a Web Page With Streamed Media
- Creating Links to MP3 Playlists
- Bandwidth Considerations
- Playlists
- Relays
- Security
- Resetting the Streaming Server Admin User Name and Password
- Controlling Access to Streamed Media
- Creating an Access File
- What Clients Need to Access Protected Media
- Adding User Accounts and Passwords
- Adding or Deleting Groups
- Making Changes to the User or Group File
- Installing SSL
- Using Automatic Unicast (Announce) With QTSS or DSS on a Separate Computer
- Executing a Command With sudo
- Streaming on Port 80
- Firewalls and Networks With Address Translation
- Problems
- Streaming Server Admin Is Not Responding
- The Server Doesn’t Start Up or Quits Unexpectedly
- The Streaming Server Computer Crashes or Is Restarted
- Media Files Do Not Stream Properly
- Streaming Performance Seems Slow
- Users Can’t Connect to Your Broadcast
- Users See Error Messages While Streaming Media
- Users Can’t See Live Streamed Media
- You’re Having Problems With Playlists
- Advanced
- How do I bind the Streaming Server Admin computer to a single IP address if my machine is multiho...
- How do I bind QTSS or DSS to a single IP address if my machine is multihomed?
- How do I kill and restart the QuickTime Streaming Server processes in Mac OS X Server?
- How do I kill and restart Streaming Server Admin processes in Mac OS X Server?
- How do I get QTSS to re-read its preferences without killing or restarting the server?
- How do I configure QTSS to host streams from multiple user media directories?
- User Interface
- Setup Example
- Glossary
- Index
62 Chapter 3
Will it be necessary to set up a broadcaster user account on the streaming
server?
In this example setup, it will be necessary to create a broadcaster user account, because the
encoding software and QTSS are on separate computers. This allows a Session Description
Protocol (SDP) file to be created on the server by the encoding software, which QuickTime
Broadcaster does automatically if the Automatic Unicast (Announce) transport mode is
selected. The SDP file provides information about the format, timing, and authorship of a live
streaming broadcast. Once specified, the user name and password will be entered through
QuickTime Broadcaster.
For instructions on creating a broadcaster user account, see “Using Automatic Unicast
(Announce) With QTSS or DSS on a Separate Computer” on page 43. You’ll need to use the
administrator computer previously set up to create this account.
Note: The broadcaster user name and password can be changed using the
StreamingServerAdmin UI, which in this example can be accessed from the laptop browser.
Finally, will users require authentication to access live or archived
presentations?
In our example setup, no authentication is necessary. However, if you want to restrict access
to your streams, you’ll need to set up password-protected individual user or group accounts.
For information on how to set up and manage such accounts, see the appropriate topics
under Security in Chapter 2.
Step 4: Set Up for a Live Webcast
For the example setup, the following items are needed:
m good-quality DV camera
m microphone placed near the speaker, either on a stand or clipped to the speaker’s
clothing, connected by good-quality audio cable to the DV camera audio input
m sturdy tripod on which to mount the camera
m portable lighting kit
The Camera Is the First Link
Since the camera is the first link in the video signal chain, it is very important. Two main
things determine a DV camera’s picture quality:
m Lens quality. The better the lens, the better the image.
m Image capture mechanism. DV cameras use charge-coupled devices (CCDs) to convert
the picture into electronic signals. The number and size of the CCDs affect the quality of
the image.
Optical zoom gives better quality than digital zoom, but zooming should be avoided or
kept to a minimum when streaming a live presentation to avoid degrading the stream.
LL0329.book Page 62 Wednesday, November 20, 2002 2:09 PM