Example usage for android.hardware.camera2 CaptureRequest CONTROL_AF

Introduction

In this page you can find the example usage for android.hardware.camera2 CaptureRequest CONTROL_AF_MODE.

Prototype

Key CONTROL_AF_MODE

To view the source code for android.hardware.camera2 CaptureRequest CONTROL_AF_MODE.

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Document

Whether auto-focus (AF) is currently enabled, and what mode it is set to.

Only effective if CaptureRequest#CONTROL_MODE android.control.mode = AUTO and the lens is not fixed focus (i.e.

Usage

From source file:com.example.android.littleblack.CameraFragment.java

/**
 * Creates a new {@link CameraCaptureSession} for camera preview.
 *///from  w w  w  .ja  va 2s  . co m
private void createCameraPreviewSession() {
    try {
        SurfaceTexture texture = mTextureView.getSurfaceTexture();
        assert texture != null;

        // We configure the size of default buffer to be the size of camera preview we want.
        texture.setDefaultBufferSize(mPreviewSize.getWidth(), mPreviewSize.getHeight());

        // This is the output Surface we need to start preview.
        Surface surface = new Surface(texture);

        // We set up a CaptureRequest.Builder with the output Surface.
        mPreviewRequestBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
        mPreviewRequestBuilder.addTarget(surface);

        // Here, we create a CameraCaptureSession for camera preview.
        mCameraDevice.createCaptureSession(Arrays.asList(surface, mImageReader.getSurface()),
                new CameraCaptureSession.StateCallback() {

                    @Override
                    public void onConfigured(@NonNull CameraCaptureSession cameraCaptureSession) {
                        // The camera is already closed
                        if (null == mCameraDevice) {
                            return;
                        }

                        // When the session is ready, we start displaying the preview.
                        mCaptureSession = cameraCaptureSession;
                        try {
                            // Auto focus should be continuous for camera preview.
                            mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE,
                                    CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
                            // Flash is automatically enabled when necessary.
                            // Eric Ju setAutoFlash(mPreviewRequestBuilder);

                            // Finally, we start displaying the camera preview.
                            mPreviewRequest = mPreviewRequestBuilder.build();
                            mCaptureSession.setRepeatingRequest(mPreviewRequest, mCaptureCallback,
                                    mBackgroundHandler);
                        } catch (CameraAccessException e) {
                            e.printStackTrace();
                        }
                    }

                    @Override
                    public void onConfigureFailed(@NonNull CameraCaptureSession cameraCaptureSession) {
                        showToast("Failed");
                    }
                }, null);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

From source file:com.obviousengine.android.focus.ZslFocusCamera.java

/**
 * Request a stream of images.//from   www. j av  a2 s. co  m
 *
 * @return true if successful, false if there was an error submitting the
 *         capture request.
 */
private boolean sendRepeatingCaptureRequest() {
    Timber.v("sendRepeatingCaptureRequest()");
    try {
        CaptureRequest.Builder builder;
        if (ZSL_ENABLED) {
            builder = device.createCaptureRequest(CameraDevice.TEMPLATE_ZERO_SHUTTER_LAG);
        } else {
            builder = device.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
        }

        builder.addTarget(previewSurface);

        if (ZSL_ENABLED) {
            builder.addTarget(captureImageReader.getSurface());
        }

        builder.set(CaptureRequest.CONTROL_MODE, CaptureRequest.CONTROL_MODE_AUTO);

        builder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
        builder.set(CaptureRequest.CONTROL_AF_TRIGGER, CaptureRequest.CONTROL_AF_TRIGGER_IDLE);

        builder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON);
        builder.set(CaptureRequest.FLASH_MODE, CaptureRequest.FLASH_MODE_OFF);

        addRegionsToCaptureRequestBuilder(builder);

        captureSession.setRepeatingRequest(builder.build(), captureManager, cameraHandler);
        return true;
    } catch (CameraAccessException e) {
        if (ZSL_ENABLED) {
            Timber.w(e, "Could not execute zero-shutter-lag repeating request.");
        } else {
            Timber.w(e, "Could not execute preview request.");
        }
        return false;
    }
}

From source file:com.example.janicduplessis.myapplication.CameraFragment.java

/**
 * Capture a still picture. This method should be called when we get a response in
 * {@link #mCaptureCallback} from both {@link #lockFocus()}.
 *///from  w  ww. j  a  va  2 s.  c  o  m
private void captureStillPicture() {
    try {
        final Activity activity = getActivity();
        if (null == activity || null == mCameraDevice) {
            return;
        }
        // This is the CaptureRequest.Builder that we use to take a picture.
        final CaptureRequest.Builder captureBuilder = mCameraDevice
                .createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
        captureBuilder.addTarget(mImageReader.getSurface());

        // Use the same AE and AF modes as the preview.
        captureBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
        captureBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);

        // Orientation
        int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
        captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, ORIENTATIONS.get(rotation));

        CameraCaptureSession.CaptureCallback CaptureCallback = new CameraCaptureSession.CaptureCallback() {

            @Override
            public void onCaptureCompleted(@NonNull CameraCaptureSession session,
                    @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) {
                // showToast("Saved: " + mFile);
                // Log.d(TAG, mFile.toString());
                unlockFocus();
            }
        };

        mCaptureSession.stopRepeating();
        mCaptureSession.capture(captureBuilder.build(), CaptureCallback, null);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

From source file:info.staticfree.mqtt_camera.fragment.CameraFragment.java

/**
 * Capture a still picture. This method should be called when we get a response in
 * {@link #captureCallback} from both {@link #lockFocus()}.
 *///from  ww  w.  ja  v  a  2s  .  c  om
private void captureStillPicture() {
    try {
        Activity activity = getActivity();
        if (null == activity || null == cameraDevice) {
            return;
        }
        // This is the CaptureRequest.Builder that we use to take a picture.
        CaptureRequest.Builder captureBuilder = cameraDevice
                .createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
        captureBuilder.addTarget(imageReader.getSurface());

        // Use the same AE and AF modes as the preview.
        if (autoFocus) {
            captureBuilder.set(CaptureRequest.CONTROL_AF_MODE,
                    CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
        } else {
            captureBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_AUTO);
        }
        setAutoFlash(captureBuilder);

        // Orientation
        int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
        captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, getOrientation(rotation));

        CameraCaptureSession.CaptureCallback CaptureCallback = new CameraCaptureSession.CaptureCallback() {

            @Override
            public void onCaptureCompleted(@NonNull CameraCaptureSession session,
                    @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) {

                if (autoFocus) {
                    unlockFocus();
                }

                if (showPreview) {
                    textureView.setVisibility(View.VISIBLE);
                    restartPreview();
                } else {
                    state = STATE_PREVIEW;
                    textureView.setVisibility(View.INVISIBLE);
                }
            }
        };

        captureSession.stopRepeating();
        captureSession.capture(captureBuilder.build(), CaptureCallback, null);
    } catch (CameraAccessException e) {
        Log.e(TAG, "Error capturing image", e);
    }
}

From source file:com.example.android.camera2basic.Fragment.Camera2BasicFragment.java

/**
 * Creates a new {@link CameraCaptureSession} for camera preview.
 *///  ww w. j a v a  2  s. co m
private void createCameraPreviewSession() {
    try {
        SurfaceTexture texture = mTextureView.getSurfaceTexture();
        assert texture != null;

        // We configure the size of default buffer to be the size of camera preview we want.
        texture.setDefaultBufferSize(mPreviewSize.getWidth(), mPreviewSize.getHeight());

        // This is the output Surface we need to start preview.
        Surface surface = new Surface(texture);

        // We set up a CaptureRequest.Builder with the output Surface.
        mPreviewRequestBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
        mPreviewRequestBuilder.addTarget(surface);

        mPreviewRequestBuilder.addTarget(mImageReader.getSurface());
        //

        // Here, we create a CameraCaptureSession for camera preview.
        mCameraDevice.createCaptureSession(Arrays.asList(surface, mImageReader.getSurface()),
                new CameraCaptureSession.StateCallback() {

                    @Override
                    public void onConfigured(@NonNull CameraCaptureSession cameraCaptureSession) {
                        // The camera is already closed
                        if (null == mCameraDevice) {
                            return;
                        }

                        // When the session is ready, we start displaying the preview.
                        mCaptureSession = cameraCaptureSession;
                        try {
                            // Auto focus should be continuous for camera preview.
                            mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE,
                                    CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
                            // Flash is automatically enabled when necessary.
                            setAutoFlash(mPreviewRequestBuilder);

                            // Finally, we start displaying the camera preview.
                            mPreviewRequest = mPreviewRequestBuilder.build();
                            mCaptureSession.setRepeatingRequest(mPreviewRequest, mCaptureCallback,
                                    mBackgroundHandler);
                        } catch (CameraAccessException e) {
                            e.printStackTrace();
                        }
                    }

                    @Override
                    public void onConfigureFailed(@NonNull CameraCaptureSession cameraCaptureSession) {
                        showToast("Failed");
                    }
                }, null);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

From source file:com.askjeffreyliu.camera2barcode.camera.CameraSource.java

/**
 * Creates a new {@link CameraCaptureSession} for camera preview.
 *///  ww  w  .j a  v a  2s  .c  o  m
private void createCameraPreviewSession() {
    try {
        SurfaceTexture texture = mTextureView.getSurfaceTexture();
        assert texture != null;

        // We configure the size of default buffer to be the size of camera preview we want.
        texture.setDefaultBufferSize(mPreviewSize.getWidth(), mPreviewSize.getHeight());

        mImageReaderPreview = ImageReader.newInstance(mPreviewSize.getWidth(), mPreviewSize.getHeight(),
                ImageFormat.YUV_420_888, 1);
        mImageReaderPreview.setOnImageAvailableListener(mOnPreviewAvailableListener, mBackgroundHandler);

        // This is the output Surface we need to start preview.
        Surface surface = new Surface(texture);

        // We set up a CaptureRequest.Builder with the output Surface.
        mPreviewRequestBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
        mPreviewRequestBuilder.addTarget(surface);
        mPreviewRequestBuilder.addTarget(mImageReaderPreview.getSurface());

        // Here, we create a CameraCaptureSession for camera preview.
        mCameraDevice.createCaptureSession(Arrays.asList(surface, mImageReaderPreview.getSurface()),
                new CameraCaptureSession.StateCallback() {

                    @Override
                    public void onConfigured(@NonNull CameraCaptureSession cameraCaptureSession) {
                        // The camera is already closed
                        if (null == mCameraDevice) {
                            return;
                        }

                        // When the session is ready, we start displaying the preview.
                        mCaptureSession = cameraCaptureSession;
                        try {
                            // Auto focus should be continuous for camera preview.
                            mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE, mFocusMode);
                            if (mFlashSupported) {
                                mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE, mFlashMode);
                            }

                            // Finally, we start displaying the camera preview.
                            mPreviewRequest = mPreviewRequestBuilder.build();
                            mCaptureSession.setRepeatingRequest(mPreviewRequest, mCaptureCallback,
                                    mBackgroundHandler);
                        } catch (CameraAccessException e) {
                            e.printStackTrace();
                        }
                    }

                    @Override
                    public void onConfigureFailed(@NonNull CameraCaptureSession cameraCaptureSession) {
                        Log.d(TAG, "Configuration failed!");
                    }
                }, null);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

From source file:com.iwuvhugs.seekgame.PhotoFragment.java

/**
 * Capture a still picture. This method should be called when we get a response in
 * {@link #mCaptureCallback} from both {@link #lockFocus()}.
 *//*from   w  w w .  java 2s  .c o  m*/
private void captureStillPicture() {
    try {
        final Activity activity = getActivity();
        if (null == activity || null == mCameraDevice) {
            return;
        }
        // This is the CaptureRequest.Builder that we use to take a picture.
        final CaptureRequest.Builder captureBuilder = mCameraDevice
                .createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
        captureBuilder.addTarget(mImageReader.getSurface());

        // Use the same AE and AF modes as the preview.
        captureBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
        setAutoFlash(captureBuilder);

        // Orientation
        int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
        captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, ORIENTATIONS.get(rotation));

        CameraCaptureSession.CaptureCallback CaptureCallback = new CameraCaptureSession.CaptureCallback() {

            @Override
            public void onCaptureCompleted(@NonNull CameraCaptureSession session,
                    @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) {

                //                    showToast("Saved: " + mFile);
                // Send broadcast message
                final Activity activity = getActivity();
                if (activity != null) {
                    activity.runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            getActivity().sendBroadcast(new Intent(MainActivity.PHOTO_READY));
                        }
                    });
                }

                Log.i(TAG, "File path: " + mFile.toString());
                unlockFocus();
            }
        };

        mCaptureSession.stopRepeating();
        mCaptureSession.capture(captureBuilder.build(), CaptureCallback, null);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

From source file:org.odk.collect.android.fragments.Camera2Fragment.java

/**
 * Capture a still picture. This method should be called when we get a response in
 * {@link #captureCallback} from both {@link #lockFocus()}.
 *//*from  w w w  .j ava2  s.c  om*/
private void captureStillPicture() {
    try {
        final Activity activity = getActivity();
        if (null == activity || null == cameraDevice) {
            return;
        }
        // This is the CaptureRequest.Builder that we use to take a picture.
        final CaptureRequest.Builder captureBuilder = cameraDevice
                .createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
        captureBuilder.addTarget(imageReader.getSurface());

        // Use the same AE and AF modes as the preview.
        captureBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
        setAutoFlash(captureBuilder);

        // Orientation
        int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
        captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, getOrientation(rotation));

        CameraCaptureSession.CaptureCallback captureCallback = new CameraCaptureSession.CaptureCallback() {

            @Override
            public void onCaptureCompleted(@NonNull CameraCaptureSession session,
                    @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) {
                unlockFocus();
            }
        };

        captureSession.stopRepeating();
        captureSession.capture(captureBuilder.build(), captureCallback, null);
    } catch (CameraAccessException e) {
        Timber.e(e);
    }
}

From source file:nautilus.writingpane.CameraActivity.java

/**
 * Capture a still picture. This method should be called when we get a response in
 * {@link #mCaptureCallback} from both {@link #lockFocus()}.
 *///  w w  w .  j  a v  a  2  s . c  o m
private void captureStillPicture() {
    try {
        if (null == mCameraDevice) {
            return;
        }
        // This is the CaptureRequest.Builder that we use to take a picture.
        final CaptureRequest.Builder captureBuilder = mCameraDevice
                .createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
        captureBuilder.addTarget(mImageReader.getSurface());

        // Use the same AE and AF modes as the preview.
        captureBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
        setAutoFlash(captureBuilder);

        // Orientation
        int rotation = getWindowManager().getDefaultDisplay().getRotation();
        captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, ORIENTATIONS.get(rotation));

        CameraCaptureSession.CaptureCallback CaptureCallback = new CameraCaptureSession.CaptureCallback() {

            @Override
            public void onCaptureCompleted(@NonNull CameraCaptureSession session,
                    @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) {
                showToast("Saved: " + mFile);
                Log.d(TAG, mFile.toString());
                unlockFocus();
            }
        };

        mCaptureSession.stopRepeating();
        mCaptureSession.capture(captureBuilder.build(), CaptureCallback, null);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

From source file:com.oddsix.nutripro.fragments.Camera2Fragment.java

/**
 * Capture a still picture. This method should be called when we get a response in
 * {@link #mCaptureCallback} from both {@link #lockFocus()}.
 *///from w ww .  j  ava 2 s .co  m
private void captureStillPicture() {
    try {
        final Activity activity = getActivity();
        if (null == activity || null == mCameraDevice) {
            return;
        }
        // This is the CaptureRequest.Builder that we use to take a picture.
        final CaptureRequest.Builder captureBuilder = mCameraDevice
                .createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
        captureBuilder.addTarget(mImageReader.getSurface());

        // Use the same AE and AF modes as the preview.
        captureBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
        setAutoFlash(captureBuilder);

        // Orientation
        int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
        captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, getOrientation(rotation));

        CameraCaptureSession.CaptureCallback CaptureCallback = new CameraCaptureSession.CaptureCallback() {

            @Override
            public void onCaptureCompleted(@NonNull CameraCaptureSession session,
                    @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) {
                //                    showToast("Saved: " + mFile);

                Log.d(TAG, mFile.getPath());
                getActivity().runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        mOnCameraListener.onPictureTaken(mFile);
                    }
                });
                //                    unlockFocus();
            }
        };

        mCaptureSession.stopRepeating();
        mCaptureSession.capture(captureBuilder.build(), CaptureCallback, null);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

Example usage for android.hardware.camera2 CaptureRequest CONTROL_AF_MODE

Introduction

Prototype

Document

Usage