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Leopard Technical Q&As: QuickTime
The QuickTime C API includes over 2000 functions that developers can use to develop applications dealing with video, sound, animation, graphics, text, interactivity, and music. Nearly all of the C API can be used in Carbon applications for Mac OS X (some parts of the API are for Windows developers or for earlier versions of the Mac OS). The QuickTime API Reference identifies all functions as being either in Carbon or not in Carbon.

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QuickTime Audio - Easy Frequency Level Metering with MovieAudio APIs (HTML)
QA1459: Describes how to perform frequency band level metering using MovieAudio metering APIs.
2009-01-29
Using QTPixelBufferContextCreate with NewMovieFromProperties (HTML)
QA1443: Discusses using a QuickTime pixel buffer visual context and NewMovieFromProperties to output frames to pixel buffers.
2008-08-08
How to work around HIMovieViewCreate failing (HTML)
QA1417: Describes how to work around HIMovieViewCreate failing to initialize the view in QuickTime 7
2008-03-11
QuickTime Audio - Muting and GetMovieAudioFrequencyLevels (HTML)
QA1556: Discusses the change made to the GetMovieAudioFrequencyLevels API with QuickTime 7.2.
2007-09-28
Programatically retrieving field and frame information (HTML)
QA1547: Discusses the use of the kICMImageDescriptionPropertyID_FieldInfo property to retrieve Field/Frame information.
2007-09-13
Compression Sessions - Multipass encoding and the pass mode flags (HTML)
QA1457: Discusses how the pass mode flags work when performing multipass compression operations.
2006-10-02
Sequence Grabber preallocates large file when recording (HTML)
QA1411: Describes how to prevent the Sequence Grabber from filling your entire disk when recording.
2006-02-06
Compression Sessions - Configuring options using the Standard Compression dialog (HTML)
QA1456: Discusses how to configure Compression Session options using Standard Compression dialog.
2006-01-12
Compression Sessions - Enabling muti-pass encoding (HTML)
QA1450: Describes how to enable multi-pass encoding when using ICM compression sessions.
2006-01-12
Compression Sessions - Temporal compression options (HTML)
QA1455: Discusses the temporal compression option as it relates to quality and other compression session options.
2006-01-12
Decompression Sessions - Setting codec accuracy and field mode (HTML)
QA1460: Describes how to set codec accuracy and field mode options when creating a decompression sessions.
2006-01-12
Compression Sessions - Configuring codec quality settings (HTML)
QA1444: Discusses how to set encoding quality for a Compression Sequence
2005-10-17
Implementing a CVFillExtendedPixelsCallBack (HTML)
QA1440: Discusses how you implement a Core Video custom extended pixel fill callback function.
2005-09-06
Registering custom pixel formats with QuickTime and Core Video (HTML)
QA1401: Discusses how to register custom pixel formats with QuickTime & Core Video with QuickTime 7.
2005-09-06
iSight - Configuring gain settings for IIDC cameras (HTML)
QA1421: Discusses how to configure features of IIDC cameras, specifically gain for the iSight
2005-04-06
Movie Export Component - How to ensure Final Cut Pro recognizes your exporter (HTML)
QA1415: Explains how to make sure Final Cut Pro will recognizes a custom QuickTime movie export component.
2005-03-08
Movie Export - Always fill in the MovieExportGetDataParams dataSize field (HTML)
QA1304: Outlines the importance of correctly filling in the MovieExportGetDataParams dataSize field when exporting from procedures.
2005-02-25
Using language-tagged QuickTime UserData text APIs with CFStrings (HTML)
QA1410: Describes how to use language-tagged QuickTime UserData text APIs with CFStrings and TextEncodings.
2005-02-11
Sequence Grabber - Determining the capture resolution of an IIDC device (HTML)
QA1403: Discusses how to determine the resolution of a captured image from an IIDC device
2005-01-06
Adding a movie reference to a movie (HTML)
QA1376: Demonstrates how to add a reference for a movie to another movie
2004-09-16
Movies - Saving movie playback hints (HTML)
QA1366: Explains how to save and load media play hints from Movie files.
2004-09-14
Dynamically registering a bundled component (HTML)
QA1083: Describes how to dynamically register a Component which resides in an Application bundle.
2004-06-07
QuickTime 6.4 & AvailabilityMacros.h on Mac OS X 10.2.x (HTML)
QA1316: Fixing compilation issues when upgrading to QuickTime 6.4 on Mac OS X 10.2.x systems.
2003-10-21
Using QTSetAtomData (HTML) (日本語 HTML)
QA1231: Explains what QTSetAtomData does with the data passed into it.
2003-01-14
Base-Derived async image codecs must implement ImageCodecQueueStarting and ImageCodecQueueStopping (HTML) (日本語 HTML)
QA1157: Describes why base-derived codecs that set canAsync must implement ImageCodecQueueStarting and ImageCodecQueueStopping.
2002-07-09
QuickTime Supported YUV Pixel Formats (HTML)
QA1060: Describes which YUV pixel formats are supported by QuickTime.
2001-07-19
Creating Sub GWorlds using QTNewGWorldFromPtr (HTML)
QA1014: Using QTNewGWorldFromPtr to create sub GWorlds which reference the pixel data of other GWorlds.
2001-03-20
Extracting DV Fields using QTNewGWorldFromPtr (HTML)
QA1017: Describes using QTNewGWorldFromPtr to access individual fields contained within a frame of DV source.
2001-03-20
LockPixels and DisposeGWorld with QTNewGWorldFromPtr (HTML)
QA1007: Clarifies some issues surrounding pointer ownership when creating GWorlds with QTNewGWorldFromPtr
2001-02-26
Incorrect Inside Macintosh Volume V documentation (HTML)
Deprecated - QD15: Identifies incorrect documentation in Inside Macintosh Volume V regarding the formats of PnPixPat and BkPixPat opcodes.
1995-09-15