Example usage for android.hardware.camera2 CaptureRequest LENS_FOCUS_DISTANCE

Introduction

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

Prototype

Key LENS_FOCUS_DISTANCE

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

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Document

Desired distance to plane of sharpest focus, measured from frontmost surface of the lens.

This control can be used for setting manual focus, on devices that support the MANUAL_SENSOR capability and have a variable-focus lens (see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance ).

A value of 0.0f means infinity focus.

Usage

From source file:freed.cam.apis.camera2.modules.PictureModuleApi2.java

/**
 * Capture a still picture. This method should be called when we get a response in
 *
 *///from  ww w.  j  ava2 s.  c  o  m
protected void captureStillPicture() {
    Log.d(TAG, "StartStillCapture");

    // Use the same AE and AF modes as the preview.
    try {
        captureBuilder.set(CaptureRequest.CONTROL_AF_MODE, cameraHolder.get(CaptureRequest.CONTROL_AF_MODE));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.CONTROL_AE_MODE, cameraHolder.get(CaptureRequest.CONTROL_AE_MODE));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.FLASH_MODE, cameraHolder.get(CaptureRequest.FLASH_MODE));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.COLOR_CORRECTION_MODE,
                cameraHolder.get(CaptureRequest.COLOR_CORRECTION_MODE));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.COLOR_CORRECTION_TRANSFORM,
                cameraHolder.get(CaptureRequest.COLOR_CORRECTION_TRANSFORM));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.COLOR_CORRECTION_GAINS,
                cameraHolder.get(CaptureRequest.COLOR_CORRECTION_GAINS));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.TONEMAP_CURVE, cameraHolder.get(CaptureRequest.TONEMAP_CURVE));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        if (Build.VERSION.SDK_INT >= VERSION_CODES.M)
            captureBuilder.set(CaptureRequest.TONEMAP_GAMMA, cameraHolder.get(CaptureRequest.TONEMAP_GAMMA));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }

    try {
        int awb = cameraHolder.get(CaptureRequest.CONTROL_AWB_MODE);
        captureBuilder.set(CaptureRequest.CONTROL_AWB_MODE, awb);
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.EDGE_MODE, cameraHolder.get(CaptureRequest.EDGE_MODE));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.HOT_PIXEL_MODE, cameraHolder.get(CaptureRequest.HOT_PIXEL_MODE));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.NOISE_REDUCTION_MODE,
                cameraHolder.get(CaptureRequest.NOISE_REDUCTION_MODE));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.CONTROL_AE_EXPOSURE_COMPENSATION,
                cameraHolder.get(CaptureRequest.CONTROL_AE_EXPOSURE_COMPENSATION));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        long val = 0;
        if (!parameterHandler.ManualIso.GetStringValue().equals(KEYS.AUTO))
            val = (long) (AbstractManualShutter.getMilliSecondStringFromShutterString(
                    parameterHandler.ManualShutter.getStringValues()[parameterHandler.ManualShutter.GetValue()])
                    * 1000f);
        else
            val = cameraHolder.get(CaptureRequest.SENSOR_EXPOSURE_TIME);
        Log.d(TAG, "Set ExposureTime for Capture to:" + val);
        captureBuilder.set(CaptureRequest.SENSOR_EXPOSURE_TIME, val);
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.SENSOR_SENSITIVITY,
                cameraHolder.get(CaptureRequest.SENSOR_SENSITIVITY));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.CONTROL_EFFECT_MODE,
                cameraHolder.get(CaptureRequest.CONTROL_EFFECT_MODE));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.CONTROL_SCENE_MODE,
                cameraHolder.get(CaptureRequest.CONTROL_SCENE_MODE));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.LENS_FOCUS_DISTANCE,
                cameraHolder.get(CaptureRequest.LENS_FOCUS_DISTANCE));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.JPEG_ORIENTATION,
                cameraUiWrapper.getActivityInterface().getOrientation());
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE,
                cameraHolder.get(CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        captureBuilder.set(CaptureRequest.SCALER_CROP_REGION,
                cameraHolder.get(CaptureRequest.SCALER_CROP_REGION));
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }
    try {
        if (appSettingsManager.getApiString(AppSettingsManager.SETTING_LOCATION).equals(KEYS.ON))
            captureBuilder.set(CaptureRequest.JPEG_GPS_LOCATION,
                    cameraUiWrapper.getActivityInterface().getLocationHandler().getCurrentLocation());
    } catch (NullPointerException ex) {
        ex.printStackTrace();
    }

    prepareCaptureBuilder(captureBuilder);
    imagecount = 0;
    //mDngResult = null;
    if (parameterHandler.Burst != null && parameterHandler.Burst.GetValue() > 0) {
        initBurstCapture(captureBuilder, CaptureCallback);
    } else {
        //cameraHolder.CaptureSessionH.StopRepeatingCaptureSession();
        captureBuilder.setTag(mRequestCounter.getAndIncrement());
        captureBuilder.addTarget(mImageReader.getSurface());
        if (cameraHolder.get(CaptureRequest.SENSOR_EXPOSURE_TIME) != null
                && cameraHolder.get(CaptureRequest.SENSOR_EXPOSURE_TIME) > 500000 * 1000)
            cameraHolder.CaptureSessionH.StopRepeatingCaptureSession();
        ImageHolder imageHolder = new ImageHolder();
        resultQueue.put((int) captureBuilder.build().getTag(), imageHolder);
        changeCaptureState(CaptureStates.image_capture_start);
        cameraHolder.CaptureSessionH.StartImageCapture(captureBuilder, CaptureCallback, mBackgroundHandler);
    }
}

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

private void initPreviewBuilder() {
    mPreviewRequestBuilder.set(CaptureRequest.CONTROL_MODE, CameraMetadata.CONTROL_MODE_OFF);

    mPreviewRequestBuilder.set(CaptureRequest.LENS_FOCUS_DISTANCE, valueAF);
    mPreviewRequestBuilder.set(CaptureRequest.SENSOR_EXPOSURE_TIME, valueAETime);
    mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_EXPOSURE_COMPENSATION, valueAE);
    mPreviewRequestBuilder.set(CaptureRequest.SENSOR_SENSITIVITY, valueISO);
}

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

public void createCameraPreviewSession_FOCUS() {
    try {//  ww w  .  ja va 2  s.  co  m
        mPreviewRequestBuilder.set(CaptureRequest.LENS_FOCUS_DISTANCE, focusValue);
        mPreviewRequest = mPreviewRequestBuilder.build();
        mCaptureSession.setRepeatingRequest(mPreviewRequest, mCaptureCallback, mBackgroundHandler);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

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