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
30 Chapter 2
Each track in a media file must have its own hint track. For example, a movie with one audio
and one video track must have two hint tracks: one for the audio track and one for the
video track.
When you use QuickTime Player to export a movie as a hinted movie, QuickTime adds all the
necessary hint tracks automatically.
To export a QuickTime movie as a hinted movie with QuickTime Player:
1 Open QuickTime Player on a Mac OS X, Mac OS, or Windows computer.
2 Open the QuickTime movie you want to hint.
3 Choose Export from the File menu.
4 Choose “Movie to Hinted Movie” from the pop-up menu, then type a new filename.
5 Click Save.
Improving the Performance of Hinted Movies
When you export a hinted movie from QuickTime Player, you can compress video and sound
using either the native RTP payload encoder or the generic QuickTime payload encoder. To
select QuickTime, click Options in the QuickTime Player Export dialog, then click the Track
Hinter Settings button.
The QuickTime payload encoder parses media samples into equal-sized packets. If a video
frame takes up 10 packets, and one is lost, the whole frame is discarded. Payload encoders
native to a specific codec take advantage of specific knowledge of the media format to parse
the data into packets in a more compact way. They can recover a partial frame if a video
packet is lost.
Generally, native payload encoding is preferred. Check with your codec manufacturer for
specific guidelines regarding payload encoding.
Use care and experimentation when choosing between native and QuickTime payload
encoders.
Session Description Protocol (SDP) Files
A Session Description Protocol (SDP) file contains information about the format, timing, and
authorship of the streamed media. For live streaming, SDP files are created on the capture-
and-encoding computer by QuickTime Broadcaster or other broadcast software. For
broadcasts of prerecorded media, an SDP file is automatically created on your streaming
server. To stream either live or prerecorded media, an SDP file must be present in the media
directory you’ve designated in Streaming Server Admin.
LL0329.book Page 30 Wednesday, November 20, 2002 2:09 PM