android.hardware.Camera.PreviewCallback Java Examples

The following examples show how to use android.hardware.Camera.PreviewCallback. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: FaceOverlapFragment.java    From Fatigue-Detection with MIT License 6 votes vote down vote up 
@SuppressLint("NewApi")
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
		Bundle savedInstanceState) {
	View view = super.onCreateView(inflater, container, savedInstanceState);

	nv21 = new byte[PREVIEW_WIDTH * PREVIEW_HEIGHT * 2];

	this.setPreviewCallback(new PreviewCallback() {
		@Override
		public void onPreviewFrame(byte[] data, Camera camera) {
			synchronized (nv21) {
				System.arraycopy(data, 0, nv21, 0, data.length);
				isNV21ready = true;
			}
		}

	});
	return view;
}
Example #2
Source File: CameraManager.java    From bcm-android with GNU General Public License v3.0 5 votes vote down vote up 
public void requestPreviewFrame(final PreviewCallback callback) {
    try {
        camera.setOneShotPreviewCallback(callback);
    } catch (final RuntimeException x) {
        Logger.e(x, "problem requesting preview frame, callback won't be called");
    }
}
Example #3
Source File: CameraPreview.java    From imsdk-android with MIT License 5 votes vote down vote up 
@SuppressWarnings("deprecation")
public CameraPreview(Context context, Camera camera, PreviewCallback previewCb, AutoFocusCallback autoFocusCb) {
	super(context);
	mCamera = camera;
	previewCallback = previewCb;
	autoFocusCallback = autoFocusCb;

	/*
	 * Set camera to continuous focus if supported, otherwise use software
	 * auto-focus. Only works for API level >=9.
	 */
	/*
	 * Camera.Parameters parameters = camera.getParameters(); for (String f
	 * : parameters.getSupportedFocusModes()) { if (f ==
	 * Parameters.FOCUS_MODE_CONTINUOUS_PICTURE) {
	 * mCamera.setFocusMode(Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
	 * autoFocusCallback = null; break; } }
	 */

	// Install a SurfaceHolder.Callback so we get notified when the
	// underlying surface is created and destroyed.
	mHolder = getHolder();
	mHolder.addCallback(this);

	// deprecated setting, but required on Android versions prior to 3.0
	mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
Example #4
Source File: CameraPreview.java    From ScanZbar with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("deprecation")
  public CameraPreview(Context context, Camera camera, PreviewCallback previewCb, AutoFocusCallback autoFocusCb) {
      super(context);
      mCamera = camera;
      previewCallback = previewCb;
      autoFocusCallback = autoFocusCb;

/*
       * Set camera to continuous focus if supported, otherwise use software
 * auto-focus. Only works for API level >=9.
 */

      Camera.Parameters parameters = camera.getParameters();
      for (String f: parameters.getSupportedFocusModes()) {
          if (f == Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE) {
              parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
              autoFocusCallback = null;
              break;
          }
      }


      // Install a SurfaceHolder.Callback so we get notified when the
      // underlying surface is created and destroyed.
      mHolder = getHolder();
      mHolder.addCallback(this);

      // deprecated setting, but required on Android versions prior to 3.0
      mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
  }
Example #5
Source File: CameraManager.java    From green_android with GNU General Public License v3.0 5 votes vote down vote up 
public void requestPreviewFrame(final PreviewCallback callback) {
    try {
        camera.setOneShotPreviewCallback(callback);
    } catch (final RuntimeException x) {
        log.warn("problem requesting preview frame, callback won't be called", x);
    }
}
Example #6
Source File: CameraProxy.java    From CameraDemo with Apache License 2.0 5 votes vote down vote up 
public void setPreviewCallback(PreviewCallback previewCallback) {
    mPreviewCallback = previewCallback;
    if (mPreviewBuffer == null) {
        mPreviewBuffer = new byte[mPreviewWidth * mPreviewHeight * 3 / 2];
    }
    mCamera.addCallbackBuffer(mPreviewBuffer);
    mCamera.setPreviewCallbackWithBuffer(mPreviewCallback); // 设置预览的回调
}
Example #7
Source File: CameraPreview.java    From ZbarCode with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("deprecation")
  public CameraPreview(Context context, Camera camera, PreviewCallback previewCb, AutoFocusCallback autoFocusCb) {
      super(context);
      mCamera = camera;
      previewCallback = previewCb;
      autoFocusCallback = autoFocusCb;

/*
       * Set camera to continuous focus if supported, otherwise use software
 * auto-focus. Only works for API level >=9.
 */

      Camera.Parameters parameters = camera.getParameters();
      for (String f: parameters.getSupportedFocusModes()) {
          if (f == Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE) {
              parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
              autoFocusCallback = null;
              break;
          }
      }


      // Install a SurfaceHolder.Callback so we get notified when the
      // underlying surface is created and destroyed.
      mHolder = getHolder();
      mHolder.addCallback(this);

      // deprecated setting, but required on Android versions prior to 3.0
      mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
  }
Example #8
Source File: ScanActivity.java    From GreenBits with GNU General Public License v3.0 5 votes vote down vote up 
@Override
public void run()
{
    cameraManager.requestPreviewFrame(new PreviewCallback()
    {
        @Override
        public void onPreviewFrame(final byte[] data, final Camera camera)
        {
            decode(data);
        }
    });
}
Example #9
Source File: ScanActivity.java    From bither-android with Apache License 2.0 5 votes vote down vote up 
@Override
public void run() {
    if (fromGallery) {
        cameraHandler.postDelayed(fetchAndDecodeRunnable, 500);
        return;
    }
    cameraManager.requestPreviewFrame(new PreviewCallback() {
        @Override
        public void onPreviewFrame(final byte[] data, final Camera camera) {
            decode(data);
        }
    });
}
Example #10
Source File: CameraPreview.java    From ZBarScanProj with MIT License 5 votes vote down vote up 
@SuppressWarnings("deprecation")
public CameraPreview(Context context, Camera camera, PreviewCallback previewCb, AutoFocusCallback autoFocusCb) {
	super(context);
	mCamera = camera;
	previewCallback = previewCb;
	autoFocusCallback = autoFocusCb;

	/*
	 * Set camera to continuous focus if supported, otherwise use software
	 * auto-focus. Only works for API level >=9.
	 */
	/*
	 * Camera.Parameters parameters = camera.getParameters(); for (String f
	 * : parameters.getSupportedFocusModes()) { if (f ==
	 * Parameters.FOCUS_MODE_CONTINUOUS_PICTURE) {
	 * mCamera.setFocusMode(Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
	 * autoFocusCallback = null; break; } }
	 */

	// Install a SurfaceHolder.Callback so we get notified when the
	// underlying surface is created and destroyed.
	mHolder = getHolder();
	mHolder.addCallback(this);

	// deprecated setting, but required on Android versions prior to 3.0
	mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
Example #11
Source File: CameraManager.java    From Conversations with GNU General Public License v3.0 5 votes vote down vote up 
public void requestPreviewFrame(final PreviewCallback callback) {
    try {
        camera.setOneShotPreviewCallback(callback);
    } catch (final RuntimeException x) {
        Log.d(Config.LOGTAG,"problem requesting preview frame, callback won't be called", x);
    }
}
Example #12
Source File: CameraPreview.java    From faceswap with Apache License 2.0 4 votes vote down vote up 
public void setPreviewCallback(PreviewCallback previewCallback) {
	if (this.mCamera != null){
		mCamera.setPreviewCallback(previewCallback);
	}
}
Example #13
Source File: CameraManager.java    From GreenBits with GNU General Public License v3.0 4 votes vote down vote up 
public void requestPreviewFrame(final PreviewCallback callback)
{
    camera.setOneShotPreviewCallback(callback);
}
Example #14
Source File: CameraManager.java    From bither-android with Apache License 2.0 4 votes vote down vote up 
public void requestPreviewFrame(final PreviewCallback callback) {
    camera.setOneShotPreviewCallback(callback);
}
Example #15
Source File: CameraPreview.java    From meatspace-android with BSD 3-Clause "New" or "Revised" License 4 votes vote down vote up 
public PreviewCallback getPreviewCallback() {
    return previewCallback;
}
Example #16
Source File: CameraPreview.java    From meatspace-android with BSD 3-Clause "New" or "Revised" License 4 votes vote down vote up 
public void setPreviewCallback(PreviewCallback previewCallback) {
    this.previewCallback = previewCallback;
    if (camera != null) {
        camera.setPreviewCallback(previewCallback);
    }
}