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Leopard Reference: QuickTime
The Cocoa API for QuickTime includes classes for use in Mac OS X applications that include multimedia such as video, sound, animation, graphics, text, and interactivity. QuickTime supports most major formats of images, video, and sound, including MPEG-4 video and AAC audio.

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NSCoder QTKit Additions Reference (HTML) (PDF)
Describes additions for encoding and decoding time and time range structures.
2007-05-07
NSValue QTKit Additions Reference (HTML) (PDF)
Describes additions for wrapping time and time range structures.
2007-05-07
QTCaptureAudioPreviewOutput Class Reference (HTML) (PDF)
Describes an output destination used to preview audio being captured.
2009-04-08
QTCaptureConnection Class Reference (HTML) (PDF)
Describes a connection for media stream capture, used with a QTCaptureSession object.
2009-05-06
QTCaptureDecompressedVideoOutput Class Reference (HTML) (PDF)
Describes a QuickTime capture output object for decompressing video.
2009-03-04
QTCaptureDevice Class Reference (HTML) (PDF)
Describes an object that represents a connected physical media capture device, such as a camera or microphone.
2009-05-06
QTCaptureDeviceInput Class Reference (HTML) (PDF)
Describes a wrapper for a QTCaptureDevice object.
2009-04-08
QTCaptureFileOutput Reference (HTML) (PDF)
Describes an interface for writing captured media to files.
2007-07-23
QTCaptureInput Class Reference (HTML) (PDF)
Describes an input source connection for a capture session object.
2009-04-08
QTCaptureLayer Class Reference (HTML) (PDF)
Describes a layer that displays captured video frames from a device; supports Core Animation.
2009-04-06
QTCaptureMovieFileOutput Class Reference (HTML) (PDF)
Describes an object that writes captured media to a QuickTime movie file.
2009-03-04
QTCaptureOutput Class Reference (HTML) (PDF)
Describes the interface for connecting capture output destinations to a capture session object.
2009-03-04
QTCaptureVideoPreviewOutput Class Reference (HTML) (PDF)
Describes an object for previewing a video stream that is being captured.
2009-03-04
QTCaptureView Class Reference (HTML) (PDF)
Describes a view that displays a video preview of a capture session.
2009-04-08
QTCompressionOptions Class Reference (HTML) (PDF)
Describes compression options for a media type.
2009-04-08
QTDataReference Class Reference (HTML) (PDF)
Describes the location of a QuickTime movie or other media data.
2009-04-08
QTFormatDescription Class Reference (HTML) (PDF)
New document that describes the Objective-C API for supporting and working with QuickTime Capture.
2009-04-08
QTKit Constants Reference (HTML) (PDF)
Describes the constants and error codes in the QTKit framework.
2007-07-19
QTKit Data Types Reference (HTML) (PDF)
Describes the data types and constants in the QTKit framework.
2006-05-23
QTKit Framework Reference (HTML) (PDF)
Describes the interfaces for working with QuickTime movies and media capture.
2007-10-31
QTKit Functions Reference (HTML) (PDF)
Describes the functions in the QTKit framework.
2009-05-06
QTMedia Class Reference (HTML) (PDF)
Describes a QuickTime media object.
2009-03-04
QTMovie Class Reference (HTML) (PDF)
Describes a QuickTime movie and movie controller.
2009-01-07
QTMovieLayer Class Reference (HTML) (PDF)
Describes a layer for drawing frames from a QuickTime movie; supports Core Animation.
2009-04-06
QTMovieView Class Reference (HTML) (PDF)
Describes a view for playing a QuickTime movie.
2007-05-01
QTSampleBuffer Class Reference (HTML) (PDF)
Describes a QuickTime media data buffer.
2009-04-08
QTTrack Class Reference (HTML) (PDF)
Describes a QuickTime movie track.
2009-03-04