SLGPUImageVideoCamera Class Reference

Inherits from	SLGPUImageOutput : NSObject
Conforms to	AVCaptureAudioDataOutputSampleBufferDelegate AVCaptureVideoDataOutputSampleBufferDelegate
Declared in	SLGPUImageVideoCamera.h

Overview

A SLGPUImageOutput that provides frames from either camera

Other Methods

`isRunning`

Whether or not the underlying AVCaptureSession is running

@property (readonly, nonatomic) BOOL isRunning

Declared In

SLGPUImageVideoCamera.h

`captureSession`

The AVCaptureSession used to capture from the camera

@property (readonly, retain, nonatomic) AVCaptureSession *captureSession

Declared In

SLGPUImageVideoCamera.h

`captureSessionPreset`

This enables the capture session preset to be changed on the fly

@property (readwrite, nonatomic, copy) NSString *captureSessionPreset

Declared In

SLGPUImageVideoCamera.h

`frameRate`

Setting this to 0 or below will set the frame rate back to the default setting for a particular preset.

@property (readwrite) int32_t frameRate

Declared In

SLGPUImageVideoCamera.h

`frontFacingCameraPresent`

Easy way to tell which cameras are present on device

@property (readonly, getter=isFrontFacingCameraPresent) BOOL frontFacingCameraPresent

Declared In

SLGPUImageVideoCamera.h

`runBenchmark`

This enables the benchmarking mode, which logs out instantaneous and average frame times to the console

@property (readwrite, nonatomic) BOOL runBenchmark

Declared In

SLGPUImageVideoCamera.h

`inputCamera`

Use this property to manage camera settings. Focus point, exposure point, etc.

@property (readonly) AVCaptureDevice *inputCamera

Declared In

SLGPUImageVideoCamera.h

`outputImageOrientation`

This determines the rotation applied to the output image, based on the source material

@property (readwrite, nonatomic) UIInterfaceOrientation outputImageOrientation

Declared In

SLGPUImageVideoCamera.h

`horizontallyMirrorRearFacingCamera`

These properties determine whether or not the two camera orientations should be mirrored. By default, both are NO.

@property (readwrite, nonatomic) BOOL horizontallyMirrorFrontFacingCamera , horizontallyMirrorRearFacingCamera

Declared In

SLGPUImageVideoCamera.h

Initialization and teardown

`– initWithSessionPreset:cameraPosition:`

Begin a capture session

- (id)initWithSessionPreset:(NSString *)sessionPreset cameraPosition:(AVCaptureDevicePosition)cameraPosition

Parameters

`sessionPreset`	Session preset to use
`cameraPosition`	Camera to capture from

Discussion

See AVCaptureSession for acceptable values

Declared In

SLGPUImageVideoCamera.h

Add audio capture to the session. Adding inputs and outputs freezes the capture session momentarily, so you can use this method to add the audio inputs and outputs early, if you’re going to set the audioEncodingTarget later. Returns YES is the audio inputs and outputs were added, or NO if they had already been added.

- (BOOL)addAudioInputsAndOutputs

Declared In

SLGPUImageVideoCamera.h

`– removeAudioInputsAndOutputs`

Remove the audio capture inputs and outputs from this session. Returns YES if the audio inputs and outputs were removed, or NO is they hadn’t already been added.

- (BOOL)removeAudioInputsAndOutputs