Example usage for android.hardware Camera setParameters

Introduction

In this page you can find the example usage for android.hardware Camera setParameters.

Prototype

public void setParameters(Parameters params) 

Source Link

Document

Changes the settings for this Camera service.

Usage

From source file:edu.winlab.minijarvis.activity.CameraActivity.java

/**
 * To get camera instance/*from  w w w .jav a2s  . c om*/
 * @return Camera
 */
private static Camera getCameraInstance() {
    Camera camera = null;
    try {
        camera = Camera.open();

        // Work around for Camera preview issues
        Camera.Parameters params = camera.getParameters();
        params.setPreviewFpsRange(30000, 30000);
        camera.setParameters(params);
    } catch (Exception e) {
        System.out.println(e.toString());
        e.printStackTrace();
    }
    return camera;
}

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From source file:at.wada811.utils.CameraUtils.java

/**
 * ?// ww  w  .j  av  a 2 s. c om
 * 
 * @param camera
 * @param pictureSize
 */
public static void setPictureSize(Camera camera, Size pictureSize) {
    Parameters params = camera.getParameters();
    params.setPictureSize(pictureSize.width, pictureSize.height);
    camera.setParameters(params);
}

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From source file:at.wada811.utils.CameraUtils.java

/**
 * ???/*  w w w. j  a va2s.c  om*/
 * 
 * @param camera
 * @param previewSize
 */
public static void setPreviewSize(Camera camera, Size previewSize) {
    Parameters params = camera.getParameters();
    params.setPreviewSize(previewSize.width, previewSize.height);
    camera.setParameters(params);
}

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From source file:Main.java

/** Sets the camera's picture size to the maximum available size, as determined by number of pixels (width*height).
 * Returns a Camera.Size object containing the updated picture size.
 *//* www.j a v a2  s  .co m*/
public static Camera.Size setLargestCameraSize(Camera camera) {
    Camera.Parameters params = camera.getParameters();
    List<Camera.Size> pictureSizes = pictureSizesForCameraParameters(params);
    if (pictureSizes != null && pictureSizes.size() > 0) {
        long bestPixels = -1;
        Camera.Size bestSize = null;
        for (Camera.Size size : pictureSizes) {
            long pixels = size.width * size.height;
            if (pixels > bestPixels || bestPixels < 0) {
                bestPixels = pixels;
                bestSize = size;
            }
        }
        if (bestSize != null) {
            params.setPictureSize(bestSize.width, bestSize.height);
            camera.setParameters(params);
        }
    }

    return params.getPictureSize();
}

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From source file:Main.java

@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public static void focusOnTouch(Camera camera, MotionEvent event) {
    Rect focusRect = calculateTapArea(camera, event.getRawX(), event.getRawY(), 1f);
    Rect meteringRect = calculateTapArea(camera, event.getRawX(), event.getRawY(), 1.5f);

    Camera.Parameters parameters = camera.getParameters();
    parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
    int version = Build.VERSION.SDK_INT;
    if (version > Build.VERSION_CODES.ICE_CREAM_SANDWICH && parameters.getMaxNumFocusAreas() > 0) {
        List<Camera.Area> focusAreas = new ArrayList<Camera.Area>();
        focusAreas.add(new Camera.Area(focusRect, 1000));

        parameters.setFocusAreas(focusAreas);
    }/*from  w w  w  .  j  a v a2  s  .  c  o m*/

    if (version > Build.VERSION_CODES.ICE_CREAM_SANDWICH && parameters.getMaxNumMeteringAreas() > 0) {
        List<Camera.Area> meteringAreas = new ArrayList<Camera.Area>();
        meteringAreas.add(new Camera.Area(meteringRect, 1000));

        parameters.setMeteringAreas(meteringAreas);
    }

    camera.setParameters(parameters);
}

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From source file:edu.mit.mobile.android.livingpostcards.CameraActivity.java

/** A safe way to get an instance of the Camera object. */
public static Camera getCameraInstance() {
    Camera c = null;
    try {//  ww w . j  av  a 2  s. c o m
        c = Camera.open(); // attempt to get a Camera instance
        final Parameters params = c.getParameters();
        final Size s = getBestPictureSize(640, 480, params);
        params.setPictureSize(s.width, s.height);
        if (Constants.DEBUG) {
            Log.d(TAG, "best picture size is " + s.width + "x" + s.height);
        }
        c.setParameters(params);
    } catch (final Exception e) {
        Log.e(TAG, "Error acquiring camera", e);
    }
    return c; // returns null if camera is unavailable
}

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From source file:me.hammarstrom.imagerecognition.activities.MainActivity.java

/**
 * Helper method to get {@link Camera} instance
 *
 * @return camera//from   w ww  .java2  s. c o m
 */
private Camera getCameraInstance() {
    Camera camera = null;
    try {
        camera = Camera.open();

        // Set auto focus mode
        Camera.Parameters parameters = camera.getParameters();
        parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
        camera.setParameters(parameters);

    } catch (Exception e) {
        // cannot get camera or does not exist
    }
    return camera;
}

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From source file:Main.java

public static void setFlashMode(Camera mCamera, Context item, int type) {
    Camera.Parameters params = mCamera.getParameters();
    List<String> FlashModes = params.getSupportedFlashModes();

    switch (type) {
    case 0:/*w  w  w.  j ava 2s. c o  m*/
        if (FlashModes.contains(Camera.Parameters.FLASH_MODE_AUTO))
            params.setFlashMode(Camera.Parameters.FLASH_MODE_AUTO);
        else
            Toast.makeText(item, "Auto Mode not supported", Toast.LENGTH_SHORT).show();
        break;
    case 1:
        if (FlashModes.contains(Camera.Parameters.FLASH_MODE_OFF))
            params.setFlashMode(Camera.Parameters.FLASH_MODE_OFF);
        else
            Toast.makeText(item, "Off Mode not supported", Toast.LENGTH_SHORT).show();
        break;
    case 2:
        if (FlashModes.contains(Camera.Parameters.FLASH_MODE_ON))
            params.setFlashMode(Camera.Parameters.FLASH_MODE_ON);
        else
            Toast.makeText(item, "On Mode not supported", Toast.LENGTH_SHORT).show();
        break;
    case 3:
        if (FlashModes.contains(Camera.Parameters.FLASH_MODE_RED_EYE))
            params.setFlashMode(Camera.Parameters.FLASH_MODE_RED_EYE);
        else
            Toast.makeText(item, "Red Eye Mode not supported", Toast.LENGTH_SHORT).show();
        break;
    case 4:
        if (FlashModes.contains(Camera.Parameters.FLASH_MODE_TORCH))
            params.setFlashMode(Camera.Parameters.FLASH_MODE_TORCH);
        else
            Toast.makeText(item, "Torch Mode not supported", Toast.LENGTH_SHORT).show();
        break;
    }

    mCamera.setParameters(params);
}

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From source file:Main.java

public static boolean setOptimalCameraPreviewSize(Camera camera, int width, int height) {
    if (camera == null) {
        return false;
    }//from   w w  w  .ja  v  a2  s  .  c  om

    double targetRatio = (double) height / width;

    Camera.Parameters params = camera.getParameters();
    List<Camera.Size> sizes = params.getSupportedPreviewSizes();

    Camera.Size optimalSize = null;

    // selecting optimal camera preview size
    int minDiff = Integer.MAX_VALUE;
    for (Camera.Size size : sizes) {
        double ratio = (double) size.height / size.width;
        if (Math.abs(ratio - targetRatio) > RATIO_TOLERANCE)
            continue;
        if (Math.abs(size.height - height) < minDiff) {
            optimalSize = size;
            minDiff = Math.abs(size.height - height);
        }
    }

    if (optimalSize == null) {
        minDiff = Integer.MAX_VALUE;
        for (Camera.Size size : sizes) {
            if (Math.abs(size.height - height) < minDiff) {
                optimalSize = size;
                minDiff = Math.abs(size.height - height);
            }
        }
    }

    params.setPreviewSize(optimalSize.width, optimalSize.height);

    List<String> focusModes = params.getSupportedFocusModes();
    if (focusModes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO)) {
        params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO);
    }

    // for Mi3, only support ImageFormat.NV21
    // for most cameras, ImageFormat.NV21 are support worldwide
    // so use default preview format
    // params.setPreviewFormat(ImageFormat.JPEG);
    camera.setParameters(params);
    return true;
}

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From source file:com.googlecode.android_scripting.facade.CameraFacade.java

@Rpc(description = "Take a picture and save it to the specified path.", returns = "A map of Booleans autoFocus and takePicture where True "
        + "indicates success. cameraId also included.")
public Bundle cameraCapturePicture(@RpcParameter(name = "targetPath") final String targetPath,
        @RpcParameter(name = "useAutoFocus") @RpcDefault("true") Boolean useAutoFocus,
        @RpcParameter(name = "cameraId", description = "Id of camera to use. SDK 9") @RpcDefault("0") Integer cameraId)
        throws Exception {
    final BooleanResult autoFocusResult = new BooleanResult();
    final BooleanResult takePictureResult = new BooleanResult();
    Camera camera = openCamera(cameraId);
    if (camera == null) {
        String msg = String.format("can't initialize camera id %d, try to use another id", cameraId);
        Log.e(msg);//from   w w w . j a v  a 2s . c o  m

        Bundle result = new Bundle();
        result.putInt("cameraId", cameraId);
        result.putBoolean("autoFocus", false);
        result.putBoolean("takePicture", false);
        result.putString("reason", msg + ", see logcat for details");
        return result;
    }
    Parameters prm = camera.getParameters();
    camera.setParameters(prm);

    try {
        Method method = camera.getClass().getMethod("setDisplayOrientation", int.class);
        method.invoke(camera, 90);
    } catch (Exception e) {
        Log.e(e);
    }

    try {
        FutureActivityTask<SurfaceHolder> previewTask = setPreviewDisplay(camera);
        camera.startPreview();
        if (useAutoFocus) {
            autoFocus(autoFocusResult, camera);
        }
        takePicture(new File(targetPath), takePictureResult, camera);
        previewTask.finish();
    } catch (Exception e) {
        Log.e(e);
    } finally {
        camera.release();
    }

    Bundle result = new Bundle();
    result.putBoolean("autoFocus", autoFocusResult.mmResult);
    result.putBoolean("takePicture", takePictureResult.mmResult);
    result.putInt("cameraId", cameraId);
    return result;
}

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