Version: 1.0

Posted: 2006-02-14

Build Requirements: Xcode 2.2.1, MacOSX10.4u.sdk

Runtime Requirements: Mac OS X 10.4.4, QuickTime 7.0.4

View Source Code:

Download Sample (“QTCarbonCoreImage101.zip”, 116.6K)
Download Sample (“QTCarbonCoreImage101.dmg”, 178.3K)


Description

QTCarbonCoreImage101 is a Carbon application demonstrating (using very little code) how to render a QuickTime Movie using Core Image filters and the new video pipeline. It is a good place to start for Carbon developers looking at Core Image, Core Video and Visual Contexts for the very first time.

Developers interested in seeing a Cocoa version of this sample should examine QTCoreImage101.

In this sample we're using the following framework APIs:

Standard QuickTime APIs are used to play back a Movie.

AGL APIs are use to create an AGL context for rendering.

A QuickTime Visual Context is used as the drawing destination for the QuickTime Movie.

Core Image is used to add a filter and render the video frame.

Core Video pipeline:

Movie -> Visual context -> Core Image Filter -> OpenGL rendering ----> Hardware

What is Core Image:

Core Image is an extensible architecture built into Mac OS X v10.4 for near real-time, pixel-accurate image processing of graphics as well as video.

What is Core Video:

Core Video delivers a modern foundation for video services providing a bridge between QuickTime and the GPU for hardware-accelerated video processing. This highly optimized pipeline for video presentation increases performance and reduces CPU load, freeing up resources for other operations.

Document Revision History

Date Notes
2006-02-14Demonstrates how to render QuickTime Movies using Core Image filters and the new video pipeline.

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