com.pikkart.ar.recognition.CameraManager Class Reference

Manages the camera lifetime.

Inherits PreviewCallback.

Inherited by com.pikkart.ar.recognition.RecognitionManager.

Public Member Functions
	CameraManager (Fragment parent)
	Constructor.
boolean	isRecognitionRunning ()
	To be overridden by derivative classes (i.e. RecognitionManager)
void	onPreviewFrame (byte[] data, Camera camera)
	callback from the camera on a new frame capture
void	onCreate ()
	on app onCreate create buffers, surfaceTetures etc... App onCreate need to be forwarded here
boolean	onTouch (View v, MotionEvent event)
	app onTouch App onTouch need to be forwarded here
void	onResume ()
	app onResume: open and init camera App onResume need to be forwarded here
void	onDestroy ()
	app onDestroy: destroy buffers App onDestroy need to be forwarded here
void	onPause ()
	app onPause: stop camera preview and release resources App onPause need to be forwarded here
boolean	enableTorch ()
	Turn on the torch of the device. More...
boolean	disableTorch ()
	Turn off the torch of the device. More...
void	setFocusMode (String mode)
	Set the selected focus mode for the camera if available for the device. More...
String	getFocusMode ()
	Retrieve the currently set focus mode. More...

Protected Member Functions
void	initCamera () throws IOException
	Init the android camera.
void	createFocusTimer ()
	Create timers for our custom focus mode.
void	computeAvgRowsValues ()
	support function for our custom focus mode
Camera	openCamera ()
	open android camera

Protected Attributes
Camera	_camera = null
	The Android Camera.
ByteBuffer []	_frameData = null
	Circular ByteBuffers for the frame data.
SurfaceTexture	_surface
	Placeholder surface texture for the camera.
int	frames = 0
	frame counter.
String	saved_focus_mode = FOCUS_MODE_CENTER
	requested focus mode.
int	_cameraID
	Active camera id.
boolean	_tapToFocusActive
	FOCUS_MODE_CENTER_W_TAP, taptoFocus is active.
boolean	_focusAtCenterActive
	our custom focusing is active.
boolean	_checkfocus
	Flag variable changed by the focustimer.
Timer	_focusTimer
	focus timer.
boolean	_focusStep1
	Flag variable, Step1: movement detected.
boolean	_isTracking
	ARNativeWrapper currently tracking.
int	_nframesSteady
	Number of consecutive frames of steady device.
float	_avgRowsValuesLastFocus []
	Avg values of image rows taken at last focus.
float	_avgRowsValuesPrev []
	Avg values of image rows taken at last frame.
Fragment	_parent = null
	Parent fragment.

Member Function Documentation

enableTorch()

boolean com.pikkart.ar.recognition.CameraManager.enableTorch

(

)

Turn on the torch of the device.

Returns

true if the device provides a torch, false otherwise

disableTorch()

boolean com.pikkart.ar.recognition.CameraManager.disableTorch

(

)

Turn off the torch of the device.

Returns

true if the device provides a torch, false otherwise

setFocusMode()

void com.pikkart.ar.recognition.CameraManager.setFocusMode

(

String

mode

)

Set the selected focus mode for the camera if available for the device.

Currently supported focus modes are FOCUS_MODE_MACRO, FOCUS_MODE_INFINITY, FOCUS_MODE_CONTINUOUS_VIDEO, FOCUS_MODE_AUTO included into Camera.Parameters class of the Android SDK.

Parameters

mode	A string representing a focus mode included in Camera.Parameters.

getFocusMode()

String com.pikkart.ar.recognition.CameraManager.getFocusMode

(

)

Retrieve the currently set focus mode.

Currently supported focus modes are FOCUS_MODE_MACRO, FOCUS_MODE_INFINITY, FOCUS_MODE_CONTINUOUS_VIDEO, FOCUS_MODE_AUTO included into Camera.Parameters class of the Android SDK.

Returns

A String representing the currently set focus mode .