QuickTime Kit Programming Guide - filibeto.org

C H A P T E R 3
Extending the QTKitPlayer Application
CFBundleVersion
1.0
NSMainNibFile
MainMenu
NSPrincipalClass
NSApplication
Running and Building Your QTKitPlayer
If you’ve followed correctly all the steps described in this chapter, you’ll be ready to build and run
the QTKitPlayer application. In Xcode, simply click the hammer icon with the play button on top, or
press Command-R, as you would if you were compiling any other Xcode project.
The QTKitPlayer appears with the blue default movie displayed. Now you can open and import other
media, export them to different formats, edit the contents of that media, and control movie playback
and display, such as showing or not showing the movie controller.
You’ll also be able to perform a variety of movie-editing operations discussed earlier in this chapter,
such as trimming (shown in Figure 3-22).
Figure 3-22 The Apple 1984-2004 QuickTime movie with the editing trim feature enabled
Again, the Add command lets you add a new chunk to a movie in one or more new tracks––on top
of what’s already there––instead of inserting it like you would do using the Paste command. The Add
Scaled command scales the chunk you are pasting in time, and the chunk becomes stretched or
compressed so that it plays for the same duration as the current selection in the receiving movie,
which can result in a slow-motion or fast-motion effects. The Trim command deletes everything in
the current movie except the current selection
If you want to export your movie to another media format, such as MPEG-4, choose the Export
command in the Edit menu, as shown in Figure 3-23, and the export sheet (Figure 3-24) will appear.
58 Running and Building Your QTKitPlayer
2005-11-09 | © 2004, 2005 Apple Computer, Inc. All Rights Reserved.