org.opencv.android
Class JavaCameraView

java.lang.Object
  SurfaceView
      org.opencv.android.CameraBridgeViewBase
          org.opencv.android.JavaCameraView

public class JavaCameraView
extends CameraBridgeViewBase

This class is an implementation of the Bridge View between OpenCV and Java Camera. This class relays on the functionality available in base class and only implements required functions: connectCamera - opens Java camera and sets the PreviewCallback to be delivered. disconnectCamera - closes the camera and stops preview. When frame is delivered via callback from Camera - it processed via OpenCV to be converted to RGBA32 and then passed to the external callback for modifications if required.

Nested Class Summary

static class

JavaCameraView.JavaCameraSizeAccessor

Nested classes/interfaces inherited from class org.opencv.android.CameraBridgeViewBase

CameraBridgeViewBase.CvCameraViewListener, CameraBridgeViewBase.ListItemAccessor

Field Summary

protected Camera

mCamera

Fields inherited from class org.opencv.android.CameraBridgeViewBase

mCameraIndex, mEnabled, mFpsMeter, mFrameHeight, mFrameWidth, mMaxHeight, mMaxWidth, mPreviewFormat

Constructor Summary

JavaCameraView(Context context, AttributeSet attrs)

JavaCameraView(Context context, int cameraId)

Method Summary

protected boolean	connectCamera(int width, int height) This method is invoked shall perform concrete operation to initialize the camera.
protected void	disconnectCamera() Disconnects and release the particular camera object being connected to this surface view.
protected boolean	initializeCamera(int width, int height)
void	onPreviewFrame(byte[] frame, Camera arg1)
protected void	releaseCamera()

Methods inherited from class org.opencv.android.CameraBridgeViewBase

AllocateCache, calculateCameraFrameSize, deliverAndDrawFrame, disableFpsMeter, disableView, enableFpsMeter, enableView, SetCaptureFormat, setCvCameraViewListener, setMaxFrameSize, surfaceChanged, surfaceCreated, surfaceDestroyed

Methods inherited from class java.lang.Object

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

Field Detail

mCamera

protected Camera mCamera

Constructor Detail

JavaCameraView

public JavaCameraView(Context context,
                      AttributeSet attrs)

JavaCameraView

public JavaCameraView(Context context,
                      int cameraId)

Method Detail

connectCamera

protected boolean connectCamera(int width,
                                int height)

Description copied from class: CameraBridgeViewBase

This method is invoked shall perform concrete operation to initialize the camera. CONTRACT: as a result of this method variables mFrameWidth and mFrameHeight MUST be initialized with the size of the Camera frames that will be delivered to external processor.

Specified by:

connectCamera in class CameraBridgeViewBase

Parameters:

width - - the width of this SurfaceView

height - - the height of this SurfaceView

disconnectCamera

protected void disconnectCamera()

Description copied from class: CameraBridgeViewBase

Disconnects and release the particular camera object being connected to this surface view. Called when syncObject lock is held

Specified by:

disconnectCamera in class CameraBridgeViewBase

initializeCamera

protected boolean initializeCamera(int width,
                                   int height)

onPreviewFrame

public void onPreviewFrame(byte[] frame,
                           Camera arg1)

releaseCamera

protected void releaseCamera()