SquareCam

DESCRIPTION:

SquareCam demonstrates improvements to the AVCaptureStillImageOutput class in iOS 5, highlighting the following features:

• KVO observation of the @"capturingStillImage" property to know when to perform an animation
• Use of setVideoScaleAndCropFactor: to achieve a "digital zoom" effect on captured images
• Switching between front and back cameras while showing a real-time preview
• Integrating with CoreImage's new CIFaceDetector to find faces in a real-time VideoDataOutput, as well as in a captured still image. Found faces are indicated with a red square.
• Overlaid square is rotated appropriately for the 4 supported device rotations.

BUILD REQUIREMENTS:

Xcode 4.2 or later; iPhone iOS SDK 5.0 or later.

RUNTIME REQUIREMENTS:

iOS 5.0 or later. This app will not deliver any camera output on the iOS simulator.

APIs USED:

• ALAssetsLibrary - to write to the photos library
• AVFoundation
• AVCaptureConnection
• AVCaptureDevice
• AVCaptureDeviceInput
• AVCaptureSession
• AVCaptureStillImageOutput
• AVCaptureVideoDataOutput
• AVCaptureVideoPreviewLayer
• CoreImage
• CIFaceDetector

Copyright (C) 2011 Apple Inc. All rights reserved.