Package com.digimarc.capture.camera

Class CameraWrapper

java.lang.Object

com.digimarc.capture.camera.CameraWrapperBase

com.digimarc.capture.camera.CameraWrapper

All Implemented Interfaces:

android.hardware.Camera.AutoFocusCallback

public class CameraWrapper
extends CameraWrapperBase
implements android.hardware.Camera.AutoFocusCallback

Method Summary

Modifier and Type	Method	Description
void	close()
void	configureCameraBuffers()
static CameraWrapper	create()	Create a CameraWrapper instance if one does not already exist.
static CameraWrapper	get()	Gets the static CameraWrapper instance.
android.hardware.Camera.Parameters	getCachedParameters()
Metadata	getMetadata()
int	getOrientation()
int	getPreviewFormat()
android.graphics.Point	getPreviewSizeAsPoint()
int	getSensorToDeviceRotation(int deviceRotation)
boolean	isTorchOn()
boolean	isTorchSupported()	Queries whether the handset has a flash (torch).
void	onAutoFocus(boolean arg0, android.hardware.Camera arg1)
void	open(android.graphics.SurfaceTexture surfaceTexture, android.view.ViewGroup surface, android.os.Handler handler)	Opens the camera and re-sizes the camera surfaceview.
void	setTorch(boolean state)	Enables/Disables the torch as long as the hardware supports torch mode
boolean	startPreview()
void	stopPreview()
void	triggerAutoFocus()
void	triggerCenterFocus()
void	triggerRegionFocus(android.graphics.RectF region, int regionMask)

Methods inherited from class com.digimarc.capture.camera.CameraWrapperBase

addCameraListener, getAdjustedRotation, getCameraObject, getCameraOrientation, isFocusing, isRegionAESupported, isRegionAFSupported, isRegionAWBSupported, isUsingCamera2, onCameraClosed, onError, removeCameraListener, setUIHandler

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

get

@Nullable
public static CameraWrapper get()

Gets the static CameraWrapper instance.

Returns:

CameraWrapper object or null if it has not yet been created.

create

@NonNull
public static CameraWrapper create()

Create a CameraWrapper instance if one does not already exist.

getOrientation

public int getOrientation()

Overrides:

getOrientation in class CameraWrapperBase

getSensorToDeviceRotation

public int getSensorToDeviceRotation(int deviceRotation)

Overrides:

getSensorToDeviceRotation in class CameraWrapperBase

getPreviewFormat

public int getPreviewFormat()

Overrides:

getPreviewFormat in class CameraWrapperBase

isTorchSupported

public boolean isTorchSupported()

Queries whether the handset has a flash (torch). The value returned will not be valid if this is called before the camera has been initialized and opened. If you use the CameraNotifyListener interface, wait for CameraNotifyListener.onCameraAvailable() to be signalled before calling this method.

Overrides:

isTorchSupported in class CameraWrapperBase

Returns:

True if the device has an accessible torch.

startPreview

@RequiresPermission("android.permission.CAMERA")
public boolean startPreview()

stopPreview

@RequiresPermission("android.permission.CAMERA")
public void stopPreview()

configureCameraBuffers

@RequiresPermission("android.permission.CAMERA")
public void configureCameraBuffers()

close

@RequiresPermission("android.permission.CAMERA")
public void close()

open

@RequiresPermission("android.permission.CAMERA")
public void open(@NonNull
 android.graphics.SurfaceTexture surfaceTexture,
 @NonNull
 android.view.ViewGroup surface,
 @NonNull
 android.os.Handler handler)

Opens the camera and re-sizes the camera surfaceview.

Parameters:

surfaceTexture - The surface texture for live camera preview

surface - The parent element that contains the camera view

handler - Handler that will be used for any errors that occur while opening the camera.

triggerAutoFocus

@RequiresPermission("android.permission.CAMERA")
public void triggerAutoFocus()

Overrides:

triggerAutoFocus in class CameraWrapperBase

triggerCenterFocus

@RequiresPermission("android.permission.CAMERA")
public void triggerCenterFocus()

Overrides:

triggerCenterFocus in class CameraWrapperBase

setTorch

@RequiresPermission("android.permission.CAMERA")
public void setTorch(boolean state)

Enables/Disables the torch as long as the hardware supports torch mode

Overrides:

setTorch in class CameraWrapperBase

Parameters:

state - Whether to enable or disable the torch

isTorchOn

@RequiresPermission("android.permission.CAMERA")
public boolean isTorchOn()

Overrides:

isTorchOn in class CameraWrapperBase

getCachedParameters

@RequiresPermission("android.permission.CAMERA")
@Nullable
public android.hardware.Camera.Parameters getCachedParameters()

getPreviewSizeAsPoint

@Nullable
public android.graphics.Point getPreviewSizeAsPoint()

Overrides:

getPreviewSizeAsPoint in class CameraWrapperBase

getMetadata

@Nullable
public Metadata getMetadata()

Overrides:

getMetadata in class CameraWrapperBase

onAutoFocus

@WorkerThread
public void onAutoFocus(boolean arg0,
 @NonNull
 android.hardware.Camera arg1)

Specified by:

onAutoFocus in interface android.hardware.Camera.AutoFocusCallback

triggerRegionFocus

public void triggerRegionFocus(@NonNull
 android.graphics.RectF region,
 int regionMask)

Overrides:

triggerRegionFocus in class CameraWrapperBase