Example usage for android.hardware.camera2 CameraCharacteristics get

Introduction

In this page you can find the example usage for android.hardware.camera2 CameraCharacteristics get.

Prototype

@Nullable
public <T> T get(Key<T> key) 

Source Link

Document

Get a camera characteristics field value.

Usage

From source file:Main.java

/**
 * Calculates sensor crop region for a zoom level (zoom >= 1.0).
 *
 * @return Crop region./*from  w w w.jav  a  2s  . com*/
 */
public static Rect cropRegionForZoom(CameraCharacteristics characteristics, float zoom) {
    Rect sensor = characteristics.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE);
    int xCenter = sensor.width() / 2;
    int yCenter = sensor.height() / 2;
    int xDelta = (int) (0.5f * sensor.width() / zoom);
    int yDelta = (int) (0.5f * sensor.height() / zoom);
    return new Rect(xCenter - xDelta, yCenter - yDelta, xCenter + xDelta, yCenter + yDelta);
}

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From source file:Main.java

public static int getJPEGOrientation(int rotation, CameraCharacteristics cameraCharacteristics) {
    Integer sensorOrientation = cameraCharacteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
    sensorOrientation = sensorOrientation == null ? 0 : sensorOrientation;
    // Sensor orientation is 90 for most devices, or 270 for some devices (eg. Nexus 5X)
    // We have to take that into account and rotate JPEG properly.
    // For devices with orientation of 90, we simply return our mapping from ORIENTATIONS.
    // For devices with orientation of 270, we need to rotate the JPEG 180 degrees.
    return (ORIENTATIONS.get(rotation) + sensorOrientation + 270) % 360;
}

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From source file:Main.java

/**
 * Returns {@code true} if this device only supports {@code LEGACY} mode operation in the
 * Camera2 API for the given camera ID./*from   w  ww  .j  a  v  a2 s .c  o  m*/
 *
 * @param context {@link Context} to access the {@link CameraManager} in.
 * @param cameraId the ID of the camera device to check.
 * @return {@code true} if this device only supports {@code LEGACY} mode.
 */
public static boolean isLegacyHAL(Context context, int cameraId) throws Exception {
    CameraManager manager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE);
    CameraCharacteristics characteristics = manager.getCameraCharacteristics(Integer.toString(cameraId));

    return characteristics.get(
            CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL) == CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY;
}

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From source file:Main.java

public static int getJpegOrientation(CameraCharacteristics c, int deviceOrientation) {
    if (deviceOrientation == android.view.OrientationEventListener.ORIENTATION_UNKNOWN)
        return 0;
    int sensorOrientation = c.get(CameraCharacteristics.SENSOR_ORIENTATION);

    // Round device orientation to a multiple of 90
    deviceOrientation = (deviceOrientation + 45) / 90 * 90;

    // Reverse device orientation for front-facing cameras
    boolean facingFront = c.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT;
    if (facingFront)
        deviceOrientation = -deviceOrientation;

    // Calculate desired JPEG orientation relative to camera orientation to make
    // the image upright relative to the device orientation
    int jpegOrientation = (sensorOrientation + deviceOrientation + 360) % 360;

    return jpegOrientation;
}

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From source file:com.android.camera2.its.ItsUtils.java

private static Size[] getOutputSizes(CameraCharacteristics ccs, int format) throws ItsException {
    StreamConfigurationMap configMap = ccs.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
    if (configMap == null) {
        throw new ItsException("Failed to get stream config");
    }/*from ww  w  .j av a2  s .  c o  m*/
    return configMap.getOutputSizes(format);
}

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From source file:com.google.android.apps.watchme.StreamerActivity.java

private static int sensorToDeeviceRotation(CameraCharacteristics cameraCharacteristics, int deviceOrientation) {
    int sensorOrientation = cameraCharacteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
    deviceOrientation = ORIENTATIONS.get(deviceOrientation);
    return (sensorOrientation + deviceOrientation + 360) % 360;

}

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

/**
 * Calculate the aspect ratio of the full size capture on this device.
 *
 * @param characteristics the characteristics of the camera device.
 * @return The aspect ration, in terms of width/height of the full capture
 *         size./*from ww w  . j  av a  2 s. co m*/
 */
private static float calculateFullSizeAspectRatio(CameraCharacteristics characteristics) {
    Rect activeArraySize = characteristics.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE);
    return ((float) activeArraySize.width()) / activeArraySize.height();
}

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From source file:MainActivity.java

private String getCameraId() {
    try {/*from   w ww  .j ava 2  s. co  m*/
        String[] ids = mCameraManager.getCameraIdList();
        for (String id : ids) {
            CameraCharacteristics c = mCameraManager.getCameraCharacteristics(id);
            Boolean flashAvailable = c.get(CameraCharacteristics.FLASH_INFO_AVAILABLE);
            Integer facingDirection = c.get(CameraCharacteristics.LENS_FACING);
            if (flashAvailable != null && flashAvailable && facingDirection != null
                    && facingDirection == CameraCharacteristics.LENS_FACING_BACK) {
                return id;
            }
        }
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
    return null;
}

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From source file:com.elkriefy.android.apps.torchi.MainActivity.java

private void toggleTorchMode() {
    try {//  w  ww  . j a  v a  2 s.c  om
        String[] cameraIdList = manager.getCameraIdList();
        CameraCharacteristics cameraCharacteristics = manager.getCameraCharacteristics(cameraIdList[0]);
        if (cameraCharacteristics.get(CameraCharacteristics.FLASH_INFO_AVAILABLE)) {
            torchMode = !torchMode;
            manager.setTorchMode(cameraIdList[0], torchMode);
        } else {
            CameraCharacteristics cameraCharacteristics1 = manager.getCameraCharacteristics(cameraIdList[1]);
            if (cameraCharacteristics1.get(CameraCharacteristics.FLASH_INFO_AVAILABLE)) {
                torchMode = !torchMode;
                manager.setTorchMode(cameraIdList[1], torchMode);
            }
        }
    } catch (Exception err) {
        err.printStackTrace();
    }
}

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From source file:MainActivity.java

private void openCamera() {
    CameraManager manager = (CameraManager) getSystemService(CAMERA_SERVICE);
    try {//from   ww  w.ja v a  2s  . com
        String cameraId = manager.getCameraIdList()[0];
        CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
        StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
        mPreviewSize = map.getOutputSizes(SurfaceTexture.class)[0];
        manager.openCamera(cameraId, mStateCallback, null);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    } catch (SecurityException e) {
        e.printStackTrace();
    }
}

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