This document discusses the different types of track elements that can be in a QuickTime Movie.
Each element of a QuickTime movie is contained in a separate track. You make a QuickTime movie by adding tracks that point to the media you want to use. The media may be embedded in the movie itself, or reside on a server half a world away. This track architecture is powerful and flexible, providing you with the control and precision you need to create complex interactive movies.
Each track represents a unique aspect or ability that you can change over time. A single movie may have many different track types, including video, audio, text, sprite, Flash, HREF, hinting, QuickTime VR, and chapter divisions. Each track, in turn, may possess many modifiable properties.
Sample QuickTime movie properties
Track | Description |
Movie Track |
Contains movie title, description, copyright information, and other general information on the entire movie. |
Video Track |
Digitized video, rendered 3D animation, or any other compiled image sequence, with optional special effects. |
Audio Track |
CD-quality audio or other audio formats. For more information, go here. |
Music Track |
MIDI music with QuickTime instruments |
Timecode Track |
Contains the control information that allows QuickTime to interpret media samples within a movie. For more information, go here. |
Quartz Composer Track |
Used to create motion graphics animation based on OpenGL, Core Image, and Core Video technologies. These animations are called "Quartz Composer compositions" and are stored in ".qtz" files. For more information, go here. |
Text Track |
Text imported into QuickTime for titles, subtitles, credits, notes, and other uses. For more information, go here |
Chapter Track |
A type of text track that divides and index the movie into sections. For more information, go here. |
HREF Track |
Text track containing interactive or automatic URL lines. For more information, go here. |
Sprite Track |
Contains one or more small images with animatable, programmable behaviors; useful for signs, symbols, games, and effects. For more information, go here. |
3D Track |
Contains 3DMF (QuickDraw 3D metafile) objects. |
Flash Track |
Incorporates Adobe Flash (.swf) animation. For more information, go here. |
QTVR or VR object track |
QuickTime VR information for object movies. |
QTVR panorama track |
QuickTime VR information for panorama movies. |
Streaming Track |
Contains a reference to a live stream or a movie on a streaming server. For more information, go here. |
Hint Track |
Contains information that allows a streaming server to deliver a media track as a real-time stream. For more information, go here. |