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Technical Notes: QuickTime
Image importers and exporters manage the import and export of graphic images, such as JPEG, TIFF, Photoshop, and PNG. Movie data exchange components support the import and export of other multimedia formats, such as AIFF, WAVE, AVI, MPEG-1, MIDI, MPEG-4, 3GPP, MP3, MPEG-2, H.263, and OpenDML. QuickTime can open any format file for which it has an importer and create any for which it has an exporter.

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Idling Movie Importers (HTML)
TN2111: discusses how to write an idling movie importer component
2004-11-12
Importing animated GIFs (HTML) (PDF) ()
TN2018: Describes how to tell if a GIF file or dataref contains more than one frame.
2001-04-17
Tagging Handle and Pointer Data References in QuickTime (HTML) (PDF)
TN1195: The use of data reference extensions used by QuickTime to tag handle and pointer data references.
2004-05-26
Thread-safe programming in QuickTime (HTML)
TN2125: Discusses how to use QuickTime from background threads for applications and component developers.
2004-10-08
TWAIN Data Sources for Mac OS X (HTML) ()
TN2088: Describes how to implement a TWAIN Data Source (DS) for Mac OS X
2003-06-19