QuickTime 4 Reference

Using the Base Image Decompressor

To use the services of the base image decompressor, your image decompressor component must support functions that the base image decompressor calls when necessary. The following sections explain when the base image decompressor calls these functions and how your image decompressor component must respond. These sections also list standard image decompressor calls that your image decompressor must handle itself rather than delegate.

The base image decompressor and image decompressor components are managed by the Component Manager. See the "Component Manager" chapter in Mac OS For QuickTime Programmers for more information about the Component Manager and how to use components.

Using the Base Image Decompressor

Connecting to the Base Image Decompressor

Providing Storage for Frame Decompression

Initializing Your Decompressor Component

Specifying Other Capabilities of Your Component

Implementing Functions for Queues

Decompressing Bands

Providing Information About the Decompressor

Providing Progress Information

Handling and Delegating Other Calls

Closing the Component