Example usage for android.hardware.camera2 CaptureRequest CONTROL_AE_MODE

Introduction

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

Prototype

Key CONTROL_AE_MODE

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

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Document

The desired mode for the camera device's auto-exposure routine.

This control is only effective if CaptureRequest#CONTROL_MODE android.control.mode is AUTO.

When set to any of the ON modes, the camera device's auto-exposure routine is enabled, overriding the application's selected exposure time, sensor sensitivity, and frame duration ( CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime , CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity , and CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration ).

Usage

From source file:com.example.testcamera.Camera2BasicFragmentGoogle.java

/**
 * Unlock the focus. This method should be called when still image capture sequence is finished.
 *//* w w  w.  j a  v a  2 s. c o  m*/
private void unlockFocus() {
    try {
        // Reset the autofucos trigger
        mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_TRIGGER, CameraMetadata.CONTROL_AF_TRIGGER_CANCEL);
        mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE,
                CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);
        mCaptureSession.capture(mPreviewRequestBuilder.build(), mCaptureCallback, mBackgroundHandler);
        // After this, the camera will go back to the normal state of preview.
        mState = STATE_PREVIEW;
        mCaptureSession.setRepeatingRequest(mPreviewRequest, mCaptureCallback, mBackgroundHandler);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

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From source file:com.tzutalin.vision.demo.Camera2BasicFragment.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.ja v  a  2s  . 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);
        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) {
                Log.d(TAG, mFile.toString());
                unlockFocus();

                Intent intent = null;
                if (mAction == VisionAction.ObjDetect) {
                    intent = new Intent(getActivity(), ObjectDetectActivity.class);
                } else if (mAction == VisionAction.SceneRecognition) {
                    intent = new Intent(getActivity(), SceneRecognitionActivity.class);
                }
                if (intent != null) {
                    Bundle bundle = new Bundle();
                    bundle.putString(Camera2BasicFragment.KEY_IMGPATH, mFile.toString());
                    intent.putExtras(bundle);
                    startActivity(intent);
                }
            }
        };

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

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From source file:fbla.hhs.eclat.Camera.Camera2BasicFragment.java

/**
 * Creates a new {@link CameraCaptureSession} for camera preview.
 *//*from w  w  w  . j  a v a 2 s . c  om*/
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() {
                    int line = 0;

                    @Override
                    public void onConfigured(@NonNull CameraCaptureSession cameraCaptureSession) {
                        // The camera is already closed
                        if (null == mCameraDevice) {
                            line = -1;
                            return;
                        }
                        line = 1;
                        //showToast("Success");

                        // 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);
                            line = 2;
                            // Flash is automatically enabled when necessary.
                            mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE,
                                    CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);
                            line = 3;
                            //Thread.sleep(2000);

                            // Finally, we start displaying the camera preview.
                            mPreviewRequest = mPreviewRequestBuilder.build();
                            line = 4;

                            mCaptureSession.setRepeatingRequest(mPreviewRequest, mCaptureCallback,
                                    mBackgroundHandler);
                            line = 5;
                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                    }

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

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From source file:cliq.com.cliqgram.fragments.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  . ja v  a 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);
        captureBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);

        // check to turn on/off flash mode
        captureBuilder.set(CaptureRequest.FLASH_MODE,
                flashOn ? CaptureResult.FLASH_MODE_SINGLE : CaptureResult.FLASH_MODE_OFF);

        // 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, "Saved file: " + mFile.toString());
                unlockFocus();

                startImageDisplayActivity(mFile.getName());

            }
        };

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

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

/**
 * Request a stream of images./* www  . ja va2  s  .com*/
 *
 * @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;
    }
}

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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 w  w .jav a2 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();
    }
}

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

/**
 * Creates a new {@link CameraCaptureSession} for camera preview.
 *//*ww  w . j av a2 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());

        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();
    }
}

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From source file:cliq.com.cliqgram.fragments.CameraFragment.java

/**
 * Unlock the focus. This method should be called when still image capture sequence is
 * finished.//from  ww w  .j av  a2 s . c  o m
 */
private void unlockFocus() {
    try {
        // Reset the auto-focus trigger
        mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_TRIGGER, CameraMetadata.CONTROL_AF_TRIGGER_CANCEL);
        mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE,
                CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);
        mCaptureSession.capture(mPreviewRequestBuilder.build(), mCaptureCallback, mBackgroundHandler);
        // After this, the camera will go back to the normal state of preview.
        mState = STATE_PREVIEW;
        mCaptureSession.setRepeatingRequest(mPreviewRequest, mCaptureCallback, mBackgroundHandler);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

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From source file:com.android.camera.one.v2.OneCameraZslImpl.java

private void addFlashToCaptureRequestBuilder(CaptureRequest.Builder builder, Flash flashMode) {
    switch (flashMode) {
    case ON:/*from   w  w w .  jav  a  2  s . c  om*/
        builder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_ALWAYS_FLASH);
        builder.set(CaptureRequest.FLASH_MODE, CaptureRequest.FLASH_MODE_SINGLE);
        break;
    case OFF:
        builder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON);
        builder.set(CaptureRequest.FLASH_MODE, CaptureRequest.FLASH_MODE_OFF);
        break;
    case AUTO:
        builder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);
        break;
    }
}

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From source file:com.example.aschere.cdhprototype2.Camera2RawFragment.java

private void setup3AControlsLocked(CaptureRequest.Builder builder) {
    // Enable auto-magical 3A run by camera device
    builder.set(CaptureRequest.CONTROL_MODE, CaptureRequest.CONTROL_MODE_AUTO);

    Float minFocusDist = mCharacteristics.get(CameraCharacteristics.LENS_INFO_MINIMUM_FOCUS_DISTANCE);

    // If MINIMUM_FOCUS_DISTANCE is 0, lens is fixed-focus and we need to skip the AF run.
    mNoAFRun = (minFocusDist == null || minFocusDist == 0);

    if (!mNoAFRun) {
        // If there is a "continuous picture" mode available, use it, otherwise default to AUTO.
        if (contains(mCharacteristics.get(CameraCharacteristics.CONTROL_AF_AVAILABLE_MODES),
                CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE)) {
            builder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
        } else {//w w  w. j  a va  2  s.  com
            builder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_AUTO);
        }
    }

    // If there is an auto-magical flash control mode available, use it, otherwise default to
    // the "on" mode, which is guaranteed to always be available.
    if (contains(mCharacteristics.get(CameraCharacteristics.CONTROL_AE_AVAILABLE_MODES),
            CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH)) {
        builder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);
    } else {
        builder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON);
    }

    // If there is an auto-magical white balance control mode available, use it.
    if (contains(mCharacteristics.get(CameraCharacteristics.CONTROL_AWB_AVAILABLE_MODES),
            CaptureRequest.CONTROL_AWB_MODE_AUTO)) {
        // Allow AWB to run auto-magically if this device supports this
        builder.set(CaptureRequest.CONTROL_AWB_MODE, CaptureRequest.CONTROL_AWB_MODE_AUTO);
    }
}

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