https://source.android.com/ 
/*
 * Copyright (C) 2013 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.hardware.camera2;

import android.annotation.NonNull;
import android.hardware.camera2.impl.CameraMetadataNative;
import android.hardware.camera2.impl.PublicKey;
import android.hardware.camera2.impl.SyntheticKey;
import android.util.Log;

import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;


The base class for camera controls and information.


This class defines the basic key/value map used for querying for camera
characteristics or capture results, and for setting camera request
parameters.



 All instances of CameraMetadata are immutable. The list of keys with getKeys() never changes, nor do the values returned by any key with #get throughout the lifetime of the object. 


See Also:
/**
 * The base class for camera controls and information.
 *
 * <p>
 * This class defines the basic key/value map used for querying for camera
 * characteristics or capture results, and for setting camera request
 * parameters.
 * </p>
 *
 * <p>
 * All instances of CameraMetadata are immutable. The list of keys with {@link #getKeys()}
 * never changes, nor do the values returned by any key with {@code #get} throughout
 * the lifetime of the object.
 * </p>
 *
 * @see CameraDevice
 * @see CameraManager
 * @see CameraCharacteristics
 **/
public abstract class CameraMetadata<TKey> {

    private static final String TAG = "CameraMetadataAb";
    private static final boolean DEBUG = false;
    private CameraMetadataNative mNativeInstance = null;

    
Set a camera metadata field to a value. The field definitions can be found in CameraCharacteristics, CaptureResult, and CaptureRequest. 
Params:
  • key – The metadata field to write.
  • value – The value to set the field to, which must be of a matching
type to the key.
@hide
/**
     * Set a camera metadata field to a value. The field definitions can be
     * found in {@link CameraCharacteristics}, {@link CaptureResult}, and
     * {@link CaptureRequest}.
     *
     * @param key The metadata field to write.
     * @param value The value to set the field to, which must be of a matching
     * type to the key.
     *
     * @hide
     */
    protected CameraMetadata() {
    }

    
Get a camera metadata field value.

The field definitions can be found in CameraCharacteristics, CaptureResult, and CaptureRequest.


Querying the value for the same key more than once will return a value
which is equal to the previous queried value.


Params:
  • key – The metadata field to read.
Throws:
Returns:The value of that key, or null if the field is not set.
@hide
/**
     * Get a camera metadata field value.
     *
     * <p>The field definitions can be
     * found in {@link CameraCharacteristics}, {@link CaptureResult}, and
     * {@link CaptureRequest}.</p>
     *
     * <p>Querying the value for the same key more than once will return a value
     * which is equal to the previous queried value.</p>
     *
     * @throws IllegalArgumentException if the key was not valid
     *
     * @param key The metadata field to read.
     * @return The value of that key, or {@code null} if the field is not set.
     *
     * @hide
     */
     protected abstract <T> T getProtected(TKey key);

     
@hide
/**
      * @hide
      */
     protected void setNativeInstance(CameraMetadataNative nativeInstance) {
        mNativeInstance = nativeInstance;
     }

     
@hide
/**
      * @hide
      */
     protected abstract Class<TKey> getKeyClass();

    
Returns a list of the keys contained in this map.

The list returned is not modifiable, so any attempts to modify it will throw a UnsupportedOperationException.


All values retrieved by a key from this list with #get are guaranteed to be non-null. Each key is only listed once in the list. The order of the keys is undefined.


Returns:List of the keys contained in this map.
/**
     * Returns a list of the keys contained in this map.
     *
     * <p>The list returned is not modifiable, so any attempts to modify it will throw
     * a {@code UnsupportedOperationException}.</p>
     *
     * <p>All values retrieved by a key from this list with {@code #get} are guaranteed to be
     * non-{@code null}. Each key is only listed once in the list. The order of the keys
     * is undefined.</p>
     *
     * @return List of the keys contained in this map.
     */
    @SuppressWarnings("unchecked")
    @NonNull
    public List<TKey> getKeys() {
        Class<CameraMetadata<TKey>> thisClass = (Class<CameraMetadata<TKey>>) getClass();
        return Collections.unmodifiableList(
                getKeys(thisClass, getKeyClass(), this, /*filterTags*/null));
    }

    
Return a list of all the Key that are declared as a field inside of the class type. 
 Optionally, if instance is not null, then filter out any keys with null values. 


 Optionally, if filterTags is not null, then filter out any keys whose native tag is not in filterTags. The filterTags array will be sorted as a side effect. 


/**
     * Return a list of all the Key<?> that are declared as a field inside of the class
     * {@code type}.
     *
     * <p>
     * Optionally, if {@code instance} is not null, then filter out any keys with null values.
     * </p>
     *
     * <p>
     * Optionally, if {@code filterTags} is not {@code null}, then filter out any keys
     * whose native {@code tag} is not in {@code filterTags}. The {@code filterTags} array will be
     * sorted as a side effect.
     * </p>
     */
     /*package*/ @SuppressWarnings("unchecked")
    <TKey> ArrayList<TKey> getKeys(
             Class<?> type, Class<TKey> keyClass,
             CameraMetadata<TKey> instance,
             int[] filterTags) {

        if (DEBUG) Log.v(TAG, "getKeysStatic for " + type);

        // TotalCaptureResult does not have any of the keys on it, use CaptureResult instead
        if (type.equals(TotalCaptureResult.class)) {
            type = CaptureResult.class;
        }

        if (filterTags != null) {
            Arrays.sort(filterTags);
        }

        ArrayList<TKey> keyList = new ArrayList<TKey>();

        Field[] fields = type.getDeclaredFields();
        for (Field field : fields) {
            // Filter for Keys that are public
            if (field.getType().isAssignableFrom(keyClass) &&
                    (field.getModifiers() & Modifier.PUBLIC) != 0) {

                TKey key;
                try {
                    key = (TKey) field.get(instance);
                } catch (IllegalAccessException e) {
                    throw new AssertionError("Can't get IllegalAccessException", e);
                } catch (IllegalArgumentException e) {
                    throw new AssertionError("Can't get IllegalArgumentException", e);
                }

                if (instance == null || instance.getProtected(key) != null) {
                    if (shouldKeyBeAdded(key, field, filterTags)) {
                        keyList.add(key);

                        if (DEBUG) {
                            Log.v(TAG, "getKeysStatic - key was added - " + key);
                        }
                    } else if (DEBUG) {
                        Log.v(TAG, "getKeysStatic - key was filtered - " + key);
                    }
                }
            }
        }

        if (null == mNativeInstance) {
            return keyList;
        }

        ArrayList<TKey> vendorKeys = mNativeInstance.getAllVendorKeys(keyClass);

        if (vendorKeys != null) {
            for (TKey k : vendorKeys) {
                String keyName;
                long vendorId;
                if (k instanceof CaptureRequest.Key<?>) {
                    keyName = ((CaptureRequest.Key<?>) k).getName();
                    vendorId = ((CaptureRequest.Key<?>) k).getVendorId();
                } else if (k instanceof CaptureResult.Key<?>) {
                    keyName = ((CaptureResult.Key<?>) k).getName();
                    vendorId = ((CaptureResult.Key<?>) k).getVendorId();
                } else if (k instanceof CameraCharacteristics.Key<?>) {
                    keyName = ((CameraCharacteristics.Key<?>) k).getName();
                    vendorId = ((CameraCharacteristics.Key<?>) k).getVendorId();
                } else {
                    continue;
                }

                if (filterTags == null || Arrays.binarySearch(filterTags,
                        CameraMetadataNative.getTag(keyName, vendorId)) >= 0) {
                    keyList.add(k);
                }
            }
        }

        return keyList;
    }

    @SuppressWarnings("rawtypes")
    private static <TKey> boolean shouldKeyBeAdded(TKey key, Field field, int[] filterTags) {
        if (key == null) {
            throw new NullPointerException("key must not be null");
        }

        CameraMetadataNative.Key nativeKey;

        /*
         * Get the native key from the public api key
         */
        if (key instanceof CameraCharacteristics.Key) {
            nativeKey = ((CameraCharacteristics.Key)key).getNativeKey();
        } else if (key instanceof CaptureResult.Key) {
            nativeKey = ((CaptureResult.Key)key).getNativeKey();
        } else if (key instanceof CaptureRequest.Key) {
            nativeKey = ((CaptureRequest.Key)key).getNativeKey();
        } else {
            // Reject fields that aren't a key
            throw new IllegalArgumentException("key type must be that of a metadata key");
        }

        if (field.getAnnotation(PublicKey.class) == null) {
            // Never expose @hide keys up to the API user
            return false;
        }

        // No filtering necessary
        if (filterTags == null) {
            return true;
        }

        if (field.getAnnotation(SyntheticKey.class) != null) {
            // This key is synthetic, so calling #getTag will throw IAE

            // TODO: don't just assume all public+synthetic keys are always available
            return true;
        }

        /*
         * Regular key: look up it's native tag and see if it's in filterTags
         */

        int keyTag = nativeKey.getTag();

        // non-negative result is returned iff the value is in the array
        return Arrays.binarySearch(filterTags, keyTag) >= 0;
    }

    /*@O~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
     * The enum values below this point are generated from metadata
     * definitions in /system/media/camera/docs. Do not modify by hand or
     * modify the comment blocks at the start or end.
     *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~*/

    //
    // Enumeration values for CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION
    //

    
The lens focus distance is not accurate, and the units used for android.lens.focusDistance do not correspond to any physical units.


Setting the lens to the same focus distance on separate occasions may
result in a different real focus distance, depending on factors such
as the orientation of the device, the age of the focusing mechanism,
and the device temperature. The focus distance value will still be
in the range of [0, android.lens.info.minimumFocusDistance], where 0
represents the farthest focus.


See Also:
/**
     * <p>The lens focus distance is not accurate, and the units used for
     * {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance} do not correspond to any physical units.</p>
     * <p>Setting the lens to the same focus distance on separate occasions may
     * result in a different real focus distance, depending on factors such
     * as the orientation of the device, the age of the focusing mechanism,
     * and the device temperature. The focus distance value will still be
     * in the range of <code>[0, {@link CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance}]</code>, where 0
     * represents the farthest focus.</p>
     *
     * @see CaptureRequest#LENS_FOCUS_DISTANCE
     * @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE
     * @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION
     */
    public static final int LENS_INFO_FOCUS_DISTANCE_CALIBRATION_UNCALIBRATED = 0;

    
The lens focus distance is measured in diopters.


However, setting the lens to the same focus distance
on separate occasions may result in a different real
focus distance, depending on factors such as the
orientation of the device, the age of the focusing
mechanism, and the device temperature.


See Also:
  • LENS_INFO_FOCUS_DISTANCE_CALIBRATION.LENS_INFO_FOCUS_DISTANCE_CALIBRATION
/**
     * <p>The lens focus distance is measured in diopters.</p>
     * <p>However, setting the lens to the same focus distance
     * on separate occasions may result in a different real
     * focus distance, depending on factors such as the
     * orientation of the device, the age of the focusing
     * mechanism, and the device temperature.</p>
     * @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION
     */
    public static final int LENS_INFO_FOCUS_DISTANCE_CALIBRATION_APPROXIMATE = 1;

    
The lens focus distance is measured in diopters, and
is calibrated.


The lens mechanism is calibrated so that setting the
same focus distance is repeatable on multiple
occasions with good accuracy, and the focus distance
corresponds to the real physical distance to the plane
of best focus.


See Also:
  • LENS_INFO_FOCUS_DISTANCE_CALIBRATION.LENS_INFO_FOCUS_DISTANCE_CALIBRATION
/**
     * <p>The lens focus distance is measured in diopters, and
     * is calibrated.</p>
     * <p>The lens mechanism is calibrated so that setting the
     * same focus distance is repeatable on multiple
     * occasions with good accuracy, and the focus distance
     * corresponds to the real physical distance to the plane
     * of best focus.</p>
     * @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION
     */
    public static final int LENS_INFO_FOCUS_DISTANCE_CALIBRATION_CALIBRATED = 2;

    //
    // Enumeration values for CameraCharacteristics#LENS_FACING
    //

    
The camera device faces the same direction as the device's screen.


See Also:
  • LENS_FACING.LENS_FACING
/**
     * <p>The camera device faces the same direction as the device's screen.</p>
     * @see CameraCharacteristics#LENS_FACING
     */
    public static final int LENS_FACING_FRONT = 0;

    
The camera device faces the opposite direction as the device's screen.


See Also:
  • LENS_FACING.LENS_FACING
/**
     * <p>The camera device faces the opposite direction as the device's screen.</p>
     * @see CameraCharacteristics#LENS_FACING
     */
    public static final int LENS_FACING_BACK = 1;

    
The camera device is an external camera, and has no fixed facing relative to the
device's screen.


See Also:
  • LENS_FACING.LENS_FACING
/**
     * <p>The camera device is an external camera, and has no fixed facing relative to the
     * device's screen.</p>
     * @see CameraCharacteristics#LENS_FACING
     */
    public static final int LENS_FACING_EXTERNAL = 2;

    //
    // Enumeration values for CameraCharacteristics#LENS_POSE_REFERENCE
    //

    
The value of android.lens.poseTranslation is relative to the optical center of the largest camera device facing the same direction as this camera.


This is the default value for API levels before Android P.


See Also:
/**
     * <p>The value of {@link CameraCharacteristics#LENS_POSE_TRANSLATION android.lens.poseTranslation} is relative to the optical center of
     * the largest camera device facing the same direction as this camera.</p>
     * <p>This is the default value for API levels before Android P.</p>
     *
     * @see CameraCharacteristics#LENS_POSE_TRANSLATION
     * @see CameraCharacteristics#LENS_POSE_REFERENCE
     */
    public static final int LENS_POSE_REFERENCE_PRIMARY_CAMERA = 0;

    
The value of android.lens.poseTranslation is relative to the position of the primary gyroscope of this Android device.


See Also:
/**
     * <p>The value of {@link CameraCharacteristics#LENS_POSE_TRANSLATION android.lens.poseTranslation} is relative to the position of the
     * primary gyroscope of this Android device.</p>
     *
     * @see CameraCharacteristics#LENS_POSE_TRANSLATION
     * @see CameraCharacteristics#LENS_POSE_REFERENCE
     */
    public static final int LENS_POSE_REFERENCE_GYROSCOPE = 1;

    //
    // Enumeration values for CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
    //

    
The minimal set of capabilities that every camera device (regardless of android.info.supportedHardwareLevel) supports.


This capability is listed by all normal devices, and
indicates that the camera device has a feature set
that's comparable to the baseline requirements for the
older android.hardware.Camera API.


Devices with the DEPTH_OUTPUT capability might not list this
capability, indicating that they support only depth measurement,
not standard color output.


See Also:
/**
     * <p>The minimal set of capabilities that every camera
     * device (regardless of {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel})
     * supports.</p>
     * <p>This capability is listed by all normal devices, and
     * indicates that the camera device has a feature set
     * that's comparable to the baseline requirements for the
     * older android.hardware.Camera API.</p>
     * <p>Devices with the DEPTH_OUTPUT capability might not list this
     * capability, indicating that they support only depth measurement,
     * not standard color output.</p>
     *
     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     */
    public static final int REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE = 0;

    
The camera device can be manually controlled (3A algorithms such
as auto-exposure, and auto-focus can be bypassed).
The camera device supports basic manual control of the sensor image
acquisition related stages. This means the following controls are
guaranteed to be supported:



If any of the above 3A algorithms are enabled, then the camera
device will accurately report the values applied by 3A in the
result.


A given camera device may also support additional manual sensor controls,
but this capability only covers the above list of controls.


If this is supported, android.scaler.streamConfigurationMap will additionally return a min frame duration that is greater than zero for each supported size-format combination.


See Also:
/**
     * <p>The camera device can be manually controlled (3A algorithms such
     * as auto-exposure, and auto-focus can be bypassed).
     * The camera device supports basic manual control of the sensor image
     * acquisition related stages. This means the following controls are
     * guaranteed to be supported:</p>
     * <ul>
     * <li>Manual frame duration control<ul>
     * <li>{@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration}</li>
     * <li>{@link CameraCharacteristics#SENSOR_INFO_MAX_FRAME_DURATION android.sensor.info.maxFrameDuration}</li>
     * </ul>
     * </li>
     * <li>Manual exposure control<ul>
     * <li>{@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}</li>
     * <li>{@link CameraCharacteristics#SENSOR_INFO_EXPOSURE_TIME_RANGE android.sensor.info.exposureTimeRange}</li>
     * </ul>
     * </li>
     * <li>Manual sensitivity control<ul>
     * <li>{@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}</li>
     * <li>{@link CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE android.sensor.info.sensitivityRange}</li>
     * </ul>
     * </li>
     * <li>Manual lens control (if the lens is adjustable)<ul>
     * <li>android.lens.*</li>
     * </ul>
     * </li>
     * <li>Manual flash control (if a flash unit is present)<ul>
     * <li>android.flash.*</li>
     * </ul>
     * </li>
     * <li>Manual black level locking<ul>
     * <li>{@link CaptureRequest#BLACK_LEVEL_LOCK android.blackLevel.lock}</li>
     * </ul>
     * </li>
     * <li>Auto exposure lock<ul>
     * <li>{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock}</li>
     * </ul>
     * </li>
     * </ul>
     * <p>If any of the above 3A algorithms are enabled, then the camera
     * device will accurately report the values applied by 3A in the
     * result.</p>
     * <p>A given camera device may also support additional manual sensor controls,
     * but this capability only covers the above list of controls.</p>
     * <p>If this is supported, {@link CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap} will
     * additionally return a min frame duration that is greater than
     * zero for each supported size-format combination.</p>
     *
     * @see CaptureRequest#BLACK_LEVEL_LOCK
     * @see CaptureRequest#CONTROL_AE_LOCK
     * @see CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP
     * @see CaptureRequest#SENSOR_EXPOSURE_TIME
     * @see CaptureRequest#SENSOR_FRAME_DURATION
     * @see CameraCharacteristics#SENSOR_INFO_EXPOSURE_TIME_RANGE
     * @see CameraCharacteristics#SENSOR_INFO_MAX_FRAME_DURATION
     * @see CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE
     * @see CaptureRequest#SENSOR_SENSITIVITY
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     */
    public static final int REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR = 1;

    
The camera device post-processing stages can be manually controlled.
The camera device supports basic manual control of the image post-processing
stages. This means the following controls are guaranteed to be supported:



If auto white balance is enabled, then the camera device
will accurately report the values applied by AWB in the result.


A given camera device may also support additional post-processing
controls, but this capability only covers the above list of controls.


See Also:
/**
     * <p>The camera device post-processing stages can be manually controlled.
     * The camera device supports basic manual control of the image post-processing
     * stages. This means the following controls are guaranteed to be supported:</p>
     * <ul>
     * <li>
     * <p>Manual tonemap control</p>
     * <ul>
     * <li>{@link CaptureRequest#TONEMAP_CURVE android.tonemap.curve}</li>
     * <li>{@link CaptureRequest#TONEMAP_MODE android.tonemap.mode}</li>
     * <li>{@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}</li>
     * <li>{@link CaptureRequest#TONEMAP_GAMMA android.tonemap.gamma}</li>
     * <li>{@link CaptureRequest#TONEMAP_PRESET_CURVE android.tonemap.presetCurve}</li>
     * </ul>
     * </li>
     * <li>
     * <p>Manual white balance control</p>
     * <ul>
     * <li>{@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}</li>
     * <li>{@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains}</li>
     * </ul>
     * </li>
     * <li>Manual lens shading map control<ul>
     * <li>{@link CaptureRequest#SHADING_MODE android.shading.mode}</li>
     * <li>{@link CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE android.statistics.lensShadingMapMode}</li>
     * <li>android.statistics.lensShadingMap</li>
     * <li>android.lens.info.shadingMapSize</li>
     * </ul>
     * </li>
     * <li>Manual aberration correction control (if aberration correction is supported)<ul>
     * <li>{@link CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE android.colorCorrection.aberrationMode}</li>
     * <li>{@link CameraCharacteristics#COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES android.colorCorrection.availableAberrationModes}</li>
     * </ul>
     * </li>
     * <li>Auto white balance lock<ul>
     * <li>{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock}</li>
     * </ul>
     * </li>
     * </ul>
     * <p>If auto white balance is enabled, then the camera device
     * will accurately report the values applied by AWB in the result.</p>
     * <p>A given camera device may also support additional post-processing
     * controls, but this capability only covers the above list of controls.</p>
     *
     * @see CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE
     * @see CameraCharacteristics#COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES
     * @see CaptureRequest#COLOR_CORRECTION_GAINS
     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
     * @see CaptureRequest#CONTROL_AWB_LOCK
     * @see CaptureRequest#SHADING_MODE
     * @see CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE
     * @see CaptureRequest#TONEMAP_CURVE
     * @see CaptureRequest#TONEMAP_GAMMA
     * @see CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS
     * @see CaptureRequest#TONEMAP_MODE
     * @see CaptureRequest#TONEMAP_PRESET_CURVE
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     */
    public static final int REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING = 2;

    
The camera device supports outputting RAW buffers and
metadata for interpreting them.


Devices supporting the RAW capability allow both for
saving DNG files, and for direct application processing of
raw sensor images.



See Also:
/**
     * <p>The camera device supports outputting RAW buffers and
     * metadata for interpreting them.</p>
     * <p>Devices supporting the RAW capability allow both for
     * saving DNG files, and for direct application processing of
     * raw sensor images.</p>
     * <ul>
     * <li>RAW_SENSOR is supported as an output format.</li>
     * <li>The maximum available resolution for RAW_SENSOR streams
     *   will match either the value in
     *   {@link CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE android.sensor.info.pixelArraySize} or
     *   {@link CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize}.</li>
     * <li>All DNG-related optional metadata entries are provided
     *   by the camera device.</li>
     * </ul>
     *
     * @see CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE
     * @see CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     */
    public static final int REQUEST_AVAILABLE_CAPABILITIES_RAW = 3;

    
The camera device supports the Zero Shutter Lag reprocessing use case.



See Also:
/**
     * <p>The camera device supports the Zero Shutter Lag reprocessing use case.</p>
     * <ul>
     * <li>One input stream is supported, that is, <code>{@link CameraCharacteristics#REQUEST_MAX_NUM_INPUT_STREAMS android.request.maxNumInputStreams} == 1</code>.</li>
     * <li>{@link android.graphics.ImageFormat#PRIVATE } is supported as an output/input format,
     *   that is, {@link android.graphics.ImageFormat#PRIVATE } is included in the lists of
     *   formats returned by {@link android.hardware.camera2.params.StreamConfigurationMap#getInputFormats } and {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputFormats }.</li>
     * <li>{@link android.hardware.camera2.params.StreamConfigurationMap#getValidOutputFormatsForInput }
     *   returns non empty int[] for each supported input format returned by {@link android.hardware.camera2.params.StreamConfigurationMap#getInputFormats }.</li>
     * <li>Each size returned by {@link android.hardware.camera2.params.StreamConfigurationMap#getInputSizes getInputSizes(ImageFormat.PRIVATE)} is also included in {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes getOutputSizes(ImageFormat.PRIVATE)}</li>
     * <li>Using {@link android.graphics.ImageFormat#PRIVATE } does not cause a frame rate drop
     *   relative to the sensor's maximum capture rate (at that resolution).</li>
     * <li>{@link android.graphics.ImageFormat#PRIVATE } will be reprocessable into both
     *   {@link android.graphics.ImageFormat#YUV_420_888 } and
     *   {@link android.graphics.ImageFormat#JPEG } formats.</li>
     * <li>The maximum available resolution for PRIVATE streams
     *   (both input/output) will match the maximum available
     *   resolution of JPEG streams.</li>
     * <li>Static metadata {@link CameraCharacteristics#REPROCESS_MAX_CAPTURE_STALL android.reprocess.maxCaptureStall}.</li>
     * <li>Only below controls are effective for reprocessing requests and
     *   will be present in capture results, other controls in reprocess
     *   requests will be ignored by the camera device.<ul>
     * <li>android.jpeg.*</li>
     * <li>{@link CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode}</li>
     * <li>{@link CaptureRequest#EDGE_MODE android.edge.mode}</li>
     * </ul>
     * </li>
     * <li>{@link CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES android.noiseReduction.availableNoiseReductionModes} and
     *   {@link CameraCharacteristics#EDGE_AVAILABLE_EDGE_MODES android.edge.availableEdgeModes} will both list ZERO_SHUTTER_LAG as a supported mode.</li>
     * </ul>
     *
     * @see CameraCharacteristics#EDGE_AVAILABLE_EDGE_MODES
     * @see CaptureRequest#EDGE_MODE
     * @see CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES
     * @see CaptureRequest#NOISE_REDUCTION_MODE
     * @see CameraCharacteristics#REPROCESS_MAX_CAPTURE_STALL
     * @see CameraCharacteristics#REQUEST_MAX_NUM_INPUT_STREAMS
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     */
    public static final int REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING = 4;

    
The camera device supports accurately reporting the sensor settings for many of
the sensor controls while the built-in 3A algorithm is running.  This allows
reporting of sensor settings even when these settings cannot be manually changed.


The values reported for the following controls are guaranteed to be available
in the CaptureResult, including when 3A is enabled:



This capability is a subset of the MANUAL_SENSOR control capability, and will
always be included if the MANUAL_SENSOR capability is available.


See Also:
/**
     * <p>The camera device supports accurately reporting the sensor settings for many of
     * the sensor controls while the built-in 3A algorithm is running.  This allows
     * reporting of sensor settings even when these settings cannot be manually changed.</p>
     * <p>The values reported for the following controls are guaranteed to be available
     * in the CaptureResult, including when 3A is enabled:</p>
     * <ul>
     * <li>Exposure control<ul>
     * <li>{@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}</li>
     * </ul>
     * </li>
     * <li>Sensitivity control<ul>
     * <li>{@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}</li>
     * </ul>
     * </li>
     * <li>Lens controls (if the lens is adjustable)<ul>
     * <li>{@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance}</li>
     * <li>{@link CaptureRequest#LENS_APERTURE android.lens.aperture}</li>
     * </ul>
     * </li>
     * </ul>
     * <p>This capability is a subset of the MANUAL_SENSOR control capability, and will
     * always be included if the MANUAL_SENSOR capability is available.</p>
     *
     * @see CaptureRequest#LENS_APERTURE
     * @see CaptureRequest#LENS_FOCUS_DISTANCE
     * @see CaptureRequest#SENSOR_EXPOSURE_TIME
     * @see CaptureRequest#SENSOR_SENSITIVITY
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     */
    public static final int REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS = 5;

    
The camera device supports capturing high-resolution images at >= 20 frames per
second, in at least the uncompressed YUV format, when post-processing settings are set
to FAST. Additionally, maximum-resolution images can be captured at >= 10 frames
per second.  Here, 'high resolution' means at least 8 megapixels, or the maximum
resolution of the device, whichever is smaller.


More specifically, this means that a size matching the camera device's active array size is listed as a supported size for the ImageFormat.YUV_420_888 format in either StreamConfigurationMap.getOutputSizes or StreamConfigurationMap.getHighResolutionOutputSizes, with a minimum frame duration for that format and size of either <= 1/20 s, or <= 1/10 s, respectively; and the android.control.aeAvailableTargetFpsRanges entry lists at least one FPS range where the minimum FPS is >= 1 / minimumFrameDuration for the maximum-size YUV_420_888 format. If that maximum size is listed in StreamConfigurationMap.getHighResolutionOutputSizes, then the list of resolutions for YUV_420_888 from StreamConfigurationMap.getOutputSizes contains at least one resolution >= 8 megapixels, with a minimum frame duration of <= 1/20 s.


If the device supports the ImageFormat.RAW10, ImageFormat.RAW12, then those can also be captured at the same rate as the maximum-size YUV_420_888 resolution is.


If the device supports the PRIVATE_REPROCESSING capability, then the same guarantees as for the YUV_420_888 format also apply to the ImageFormat.PRIVATE format.


In addition, the android.sync.maxLatency field is guaranted to have a value between 0 and 4, inclusive. android.control.aeLockAvailable and android.control.awbLockAvailable are also guaranteed to be true so burst capture with these two locks ON yields
consistent image output.


See Also:
/**
     * <p>The camera device supports capturing high-resolution images at &gt;= 20 frames per
     * second, in at least the uncompressed YUV format, when post-processing settings are set
     * to FAST. Additionally, maximum-resolution images can be captured at &gt;= 10 frames
     * per second.  Here, 'high resolution' means at least 8 megapixels, or the maximum
     * resolution of the device, whichever is smaller.</p>
     * <p>More specifically, this means that a size matching the camera device's active array
     * size is listed as a supported size for the {@link android.graphics.ImageFormat#YUV_420_888 } format in either {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes } or {@link android.hardware.camera2.params.StreamConfigurationMap#getHighResolutionOutputSizes },
     * with a minimum frame duration for that format and size of either &lt;= 1/20 s, or
     * &lt;= 1/10 s, respectively; and the {@link CameraCharacteristics#CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES android.control.aeAvailableTargetFpsRanges} entry
     * lists at least one FPS range where the minimum FPS is &gt;= 1 / minimumFrameDuration
     * for the maximum-size YUV_420_888 format.  If that maximum size is listed in {@link android.hardware.camera2.params.StreamConfigurationMap#getHighResolutionOutputSizes },
     * then the list of resolutions for YUV_420_888 from {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes } contains at
     * least one resolution &gt;= 8 megapixels, with a minimum frame duration of &lt;= 1/20
     * s.</p>
     * <p>If the device supports the {@link android.graphics.ImageFormat#RAW10 }, {@link android.graphics.ImageFormat#RAW12 }, then those can also be
     * captured at the same rate as the maximum-size YUV_420_888 resolution is.</p>
     * <p>If the device supports the PRIVATE_REPROCESSING capability, then the same guarantees
     * as for the YUV_420_888 format also apply to the {@link android.graphics.ImageFormat#PRIVATE } format.</p>
     * <p>In addition, the {@link CameraCharacteristics#SYNC_MAX_LATENCY android.sync.maxLatency} field is guaranted to have a value between 0
     * and 4, inclusive. {@link CameraCharacteristics#CONTROL_AE_LOCK_AVAILABLE android.control.aeLockAvailable} and {@link CameraCharacteristics#CONTROL_AWB_LOCK_AVAILABLE android.control.awbLockAvailable}
     * are also guaranteed to be <code>true</code> so burst capture with these two locks ON yields
     * consistent image output.</p>
     *
     * @see CameraCharacteristics#CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES
     * @see CameraCharacteristics#CONTROL_AE_LOCK_AVAILABLE
     * @see CameraCharacteristics#CONTROL_AWB_LOCK_AVAILABLE
     * @see CameraCharacteristics#SYNC_MAX_LATENCY
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     */
    public static final int REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE = 6;

    
The camera device supports the YUV_420_888 reprocessing use case, similar as
PRIVATE_REPROCESSING, This capability requires the camera device to support the
following:



See Also:
/**
     * <p>The camera device supports the YUV_420_888 reprocessing use case, similar as
     * PRIVATE_REPROCESSING, This capability requires the camera device to support the
     * following:</p>
     * <ul>
     * <li>One input stream is supported, that is, <code>{@link CameraCharacteristics#REQUEST_MAX_NUM_INPUT_STREAMS android.request.maxNumInputStreams} == 1</code>.</li>
     * <li>{@link android.graphics.ImageFormat#YUV_420_888 } is supported as an output/input
     *   format, that is, YUV_420_888 is included in the lists of formats returned by {@link android.hardware.camera2.params.StreamConfigurationMap#getInputFormats } and {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputFormats }.</li>
     * <li>{@link android.hardware.camera2.params.StreamConfigurationMap#getValidOutputFormatsForInput }
     *   returns non-empty int[] for each supported input format returned by {@link android.hardware.camera2.params.StreamConfigurationMap#getInputFormats }.</li>
     * <li>Each size returned by {@link android.hardware.camera2.params.StreamConfigurationMap#getInputSizes getInputSizes(YUV_420_888)} is also included in {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes getOutputSizes(YUV_420_888)}</li>
     * <li>Using {@link android.graphics.ImageFormat#YUV_420_888 } does not cause a frame rate
     *   drop relative to the sensor's maximum capture rate (at that resolution).</li>
     * <li>{@link android.graphics.ImageFormat#YUV_420_888 } will be reprocessable into both
     *   {@link android.graphics.ImageFormat#YUV_420_888 } and {@link android.graphics.ImageFormat#JPEG } formats.</li>
     * <li>The maximum available resolution for {@link android.graphics.ImageFormat#YUV_420_888 } streams (both input/output) will match the
     *   maximum available resolution of {@link android.graphics.ImageFormat#JPEG } streams.</li>
     * <li>Static metadata {@link CameraCharacteristics#REPROCESS_MAX_CAPTURE_STALL android.reprocess.maxCaptureStall}.</li>
     * <li>Only the below controls are effective for reprocessing requests and will be present
     *   in capture results. The reprocess requests are from the original capture results
     *   that are associated with the intermediate {@link android.graphics.ImageFormat#YUV_420_888 } output buffers.  All other controls in the
     *   reprocess requests will be ignored by the camera device.<ul>
     * <li>android.jpeg.*</li>
     * <li>{@link CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode}</li>
     * <li>{@link CaptureRequest#EDGE_MODE android.edge.mode}</li>
     * <li>{@link CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR android.reprocess.effectiveExposureFactor}</li>
     * </ul>
     * </li>
     * <li>{@link CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES android.noiseReduction.availableNoiseReductionModes} and
     *   {@link CameraCharacteristics#EDGE_AVAILABLE_EDGE_MODES android.edge.availableEdgeModes} will both list ZERO_SHUTTER_LAG as a supported mode.</li>
     * </ul>
     *
     * @see CameraCharacteristics#EDGE_AVAILABLE_EDGE_MODES
     * @see CaptureRequest#EDGE_MODE
     * @see CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES
     * @see CaptureRequest#NOISE_REDUCTION_MODE
     * @see CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR
     * @see CameraCharacteristics#REPROCESS_MAX_CAPTURE_STALL
     * @see CameraCharacteristics#REQUEST_MAX_NUM_INPUT_STREAMS
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     */
    public static final int REQUEST_AVAILABLE_CAPABILITIES_YUV_REPROCESSING = 7;

    
The camera device can produce depth measurements from its field of view.


This capability requires the camera device to support the following:



Generally, depth output operates at a slower frame rate than standard color capture, so the DEPTH16 and DEPTH_POINT_CLOUD formats will commonly have a stall duration that should be accounted for (see StreamConfigurationMap.getOutputStallDuration). On a device that supports both depth and color-based output, to enable smooth preview, using a repeating burst is recommended, where a depth-output target is only included once every N frames, where N is the ratio between preview output rate and depth output rate, including depth stall time.


See Also:
/**
     * <p>The camera device can produce depth measurements from its field of view.</p>
     * <p>This capability requires the camera device to support the following:</p>
     * <ul>
     * <li>{@link android.graphics.ImageFormat#DEPTH16 } is supported as
     *   an output format.</li>
     * <li>{@link android.graphics.ImageFormat#DEPTH_POINT_CLOUD } is
     *   optionally supported as an output format.</li>
     * <li>This camera device, and all camera devices with the same {@link CameraCharacteristics#LENS_FACING android.lens.facing}, will
     *   list the following calibration metadata entries in both {@link android.hardware.camera2.CameraCharacteristics }
     *   and {@link android.hardware.camera2.CaptureResult }:<ul>
     * <li>{@link CameraCharacteristics#LENS_POSE_TRANSLATION android.lens.poseTranslation}</li>
     * <li>{@link CameraCharacteristics#LENS_POSE_ROTATION android.lens.poseRotation}</li>
     * <li>{@link CameraCharacteristics#LENS_INTRINSIC_CALIBRATION android.lens.intrinsicCalibration}</li>
     * <li>{@link CameraCharacteristics#LENS_DISTORTION android.lens.distortion}</li>
     * </ul>
     * </li>
     * <li>The {@link CameraCharacteristics#DEPTH_DEPTH_IS_EXCLUSIVE android.depth.depthIsExclusive} entry is listed by this device.</li>
     * <li>As of Android P, the {@link CameraCharacteristics#LENS_POSE_REFERENCE android.lens.poseReference} entry is listed by this device.</li>
     * <li>A LIMITED camera with only the DEPTH_OUTPUT capability does not have to support
     *   normal YUV_420_888, JPEG, and PRIV-format outputs. It only has to support the DEPTH16
     *   format.</li>
     * </ul>
     * <p>Generally, depth output operates at a slower frame rate than standard color capture,
     * so the DEPTH16 and DEPTH_POINT_CLOUD formats will commonly have a stall duration that
     * should be accounted for (see {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputStallDuration }).
     * On a device that supports both depth and color-based output, to enable smooth preview,
     * using a repeating burst is recommended, where a depth-output target is only included
     * once every N frames, where N is the ratio between preview output rate and depth output
     * rate, including depth stall time.</p>
     *
     * @see CameraCharacteristics#DEPTH_DEPTH_IS_EXCLUSIVE
     * @see CameraCharacteristics#LENS_DISTORTION
     * @see CameraCharacteristics#LENS_FACING
     * @see CameraCharacteristics#LENS_INTRINSIC_CALIBRATION
     * @see CameraCharacteristics#LENS_POSE_REFERENCE
     * @see CameraCharacteristics#LENS_POSE_ROTATION
     * @see CameraCharacteristics#LENS_POSE_TRANSLATION
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     */
    public static final int REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT = 8;

    
The device supports constrained high speed video recording (frame rate >=120fps) use case. The camera device will support high speed capture session created by CameraDevice.createConstrainedHighSpeedCaptureSession, which only accepts high speed request lists created by CameraConstrainedHighSpeedCaptureSession.createHighSpeedRequestList.


A camera device can still support high speed video streaming by advertising the high speed FPS ranges in android.control.aeAvailableTargetFpsRanges. For this case, all normal capture request per frame control and synchronization requirements will apply to the high speed fps ranges, the same as all other fps ranges. This capability describes the capability of a specialized operating mode with many limitations (see below), which is only targeted at high speed video recording.


The supported high speed video sizes and fps ranges are specified in StreamConfigurationMap.getHighSpeedVideoFpsRanges. To get desired output frame rates, the application is only allowed to select video size and FPS range combinations provided by StreamConfigurationMap.getHighSpeedVideoSizes. The fps range can be controlled via android.control.aeTargetFpsRange.


In this capability, the camera device will override aeMode, awbMode, and afMode to ON, AUTO, and CONTINUOUS_VIDEO, respectively. All post-processing block mode controls will be overridden to be FAST. Therefore, no manual control of capture and post-processing parameters is possible. All other controls operate the same as when android.control.mode == AUTO. This means that all other android.control.* fields continue to work, such as



Outside of android.control.*, the following controls will work:



For high speed recording use case, the actual maximum supported frame rate may
be lower than what camera can output, depending on the destination Surfaces for
the image data. For example, if the destination surface is from video encoder,
the application need check if the video encoder is capable of supporting the
high frame rate for a given video size, or it will end up with lower recording
frame rate. If the destination surface is from preview window, the actual preview frame
rate will be bounded by the screen refresh rate.


The camera device will only support up to 2 high speed simultaneous output surfaces
(preview and recording surfaces) in this mode. Above controls will be effective only
if all of below conditions are true:



When above conditions are NOT satistied, CameraDevice.createConstrainedHighSpeedCaptureSession will fail.


Switching to a FPS range that has different maximum FPS may trigger some camera device
reconfigurations, which may introduce extra latency. It is recommended that
the application avoids unnecessary maximum target FPS changes as much as possible
during high speed streaming.


See Also:
/**
     * <p>The device supports constrained high speed video recording (frame rate &gt;=120fps) use
     * case. The camera device will support high speed capture session created by {@link android.hardware.camera2.CameraDevice#createConstrainedHighSpeedCaptureSession }, which
     * only accepts high speed request lists created by {@link android.hardware.camera2.CameraConstrainedHighSpeedCaptureSession#createHighSpeedRequestList }.</p>
     * <p>A camera device can still support high speed video streaming by advertising the high
     * speed FPS ranges in {@link CameraCharacteristics#CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES android.control.aeAvailableTargetFpsRanges}. For this case, all
     * normal capture request per frame control and synchronization requirements will apply
     * to the high speed fps ranges, the same as all other fps ranges. This capability
     * describes the capability of a specialized operating mode with many limitations (see
     * below), which is only targeted at high speed video recording.</p>
     * <p>The supported high speed video sizes and fps ranges are specified in {@link android.hardware.camera2.params.StreamConfigurationMap#getHighSpeedVideoFpsRanges }.
     * To get desired output frame rates, the application is only allowed to select video
     * size and FPS range combinations provided by {@link android.hardware.camera2.params.StreamConfigurationMap#getHighSpeedVideoSizes }.  The
     * fps range can be controlled via {@link CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE android.control.aeTargetFpsRange}.</p>
     * <p>In this capability, the camera device will override aeMode, awbMode, and afMode to
     * ON, AUTO, and CONTINUOUS_VIDEO, respectively. All post-processing block mode
     * controls will be overridden to be FAST. Therefore, no manual control of capture
     * and post-processing parameters is possible. All other controls operate the
     * same as when {@link CaptureRequest#CONTROL_MODE android.control.mode} == AUTO. This means that all other
     * android.control.* fields continue to work, such as</p>
     * <ul>
     * <li>{@link CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE android.control.aeTargetFpsRange}</li>
     * <li>{@link CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION android.control.aeExposureCompensation}</li>
     * <li>{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock}</li>
     * <li>{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock}</li>
     * <li>{@link CaptureRequest#CONTROL_EFFECT_MODE android.control.effectMode}</li>
     * <li>{@link CaptureRequest#CONTROL_AE_REGIONS android.control.aeRegions}</li>
     * <li>{@link CaptureRequest#CONTROL_AF_REGIONS android.control.afRegions}</li>
     * <li>{@link CaptureRequest#CONTROL_AWB_REGIONS android.control.awbRegions}</li>
     * <li>{@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}</li>
     * <li>{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}</li>
     * </ul>
     * <p>Outside of android.control.*, the following controls will work:</p>
     * <ul>
     * <li>{@link CaptureRequest#FLASH_MODE android.flash.mode} (TORCH mode only, automatic flash for still capture will not
     * work since aeMode is ON)</li>
     * <li>{@link CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE android.lens.opticalStabilizationMode} (if it is supported)</li>
     * <li>{@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion}</li>
     * <li>{@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} (if it is supported)</li>
     * </ul>
     * <p>For high speed recording use case, the actual maximum supported frame rate may
     * be lower than what camera can output, depending on the destination Surfaces for
     * the image data. For example, if the destination surface is from video encoder,
     * the application need check if the video encoder is capable of supporting the
     * high frame rate for a given video size, or it will end up with lower recording
     * frame rate. If the destination surface is from preview window, the actual preview frame
     * rate will be bounded by the screen refresh rate.</p>
     * <p>The camera device will only support up to 2 high speed simultaneous output surfaces
     * (preview and recording surfaces) in this mode. Above controls will be effective only
     * if all of below conditions are true:</p>
     * <ul>
     * <li>The application creates a camera capture session with no more than 2 surfaces via
     * {@link android.hardware.camera2.CameraDevice#createConstrainedHighSpeedCaptureSession }. The
     * targeted surfaces must be preview surface (either from {@link android.view.SurfaceView } or {@link android.graphics.SurfaceTexture }) or recording
     * surface(either from {@link android.media.MediaRecorder#getSurface } or {@link android.media.MediaCodec#createInputSurface }).</li>
     * <li>The stream sizes are selected from the sizes reported by
     * {@link android.hardware.camera2.params.StreamConfigurationMap#getHighSpeedVideoSizes }.</li>
     * <li>The FPS ranges are selected from {@link android.hardware.camera2.params.StreamConfigurationMap#getHighSpeedVideoFpsRanges }.</li>
     * </ul>
     * <p>When above conditions are NOT satistied,
     * {@link android.hardware.camera2.CameraDevice#createConstrainedHighSpeedCaptureSession }
     * will fail.</p>
     * <p>Switching to a FPS range that has different maximum FPS may trigger some camera device
     * reconfigurations, which may introduce extra latency. It is recommended that
     * the application avoids unnecessary maximum target FPS changes as much as possible
     * during high speed streaming.</p>
     *
     * @see CameraCharacteristics#CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES
     * @see CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION
     * @see CaptureRequest#CONTROL_AE_LOCK
     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
     * @see CaptureRequest#CONTROL_AE_REGIONS
     * @see CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE
     * @see CaptureRequest#CONTROL_AF_REGIONS
     * @see CaptureRequest#CONTROL_AF_TRIGGER
     * @see CaptureRequest#CONTROL_AWB_LOCK
     * @see CaptureRequest#CONTROL_AWB_REGIONS
     * @see CaptureRequest#CONTROL_EFFECT_MODE
     * @see CaptureRequest#CONTROL_MODE
     * @see CaptureRequest#FLASH_MODE
     * @see CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE
     * @see CaptureRequest#SCALER_CROP_REGION
     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     */
    public static final int REQUEST_AVAILABLE_CAPABILITIES_CONSTRAINED_HIGH_SPEED_VIDEO = 9;

    
The camera device supports the MOTION_TRACKING value for android.control.captureIntent, which limits maximum exposure time to 20 ms.


This limits the motion blur of capture images, resulting in better image tracking
results for use cases such as image stabilization or augmented reality.


See Also:
/**
     * <p>The camera device supports the MOTION_TRACKING value for
     * {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent}, which limits maximum exposure time to 20 ms.</p>
     * <p>This limits the motion blur of capture images, resulting in better image tracking
     * results for use cases such as image stabilization or augmented reality.</p>
     *
     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     */
    public static final int REQUEST_AVAILABLE_CAPABILITIES_MOTION_TRACKING = 10;

    
The camera device is a logical camera backed by two or more physical cameras that are
also exposed to the application.


Camera application shouldn't assume that there are at most 1 rear camera and 1 front
camera in the system. For an application that switches between front and back cameras,
the recommendation is to switch between the first rear camera and the first front
camera in the list of supported camera devices.


This capability requires the camera device to support the following:



Both the logical camera device and its underlying physical devices support the
mandatory stream combinations required for their device levels.


Additionally, for each guaranteed stream combination, the logical camera supports:


    

  • For each guaranteed stream combination, the logical camera supports replacing one logical YUV_420_888 or raw stream with two physical streams of the same size and format, each from a separate physical camera, given that the size and format are supported by both physical cameras.
    • 

  • If the logical camera doesn't advertise RAW capability, but the underlying physical
  cameras do, the logical camera will support guaranteed stream combinations for RAW
  capability, except that the RAW streams will be physical streams, each from a separate
  physical camera. This is usually the case when the physical cameras have different
  sensor sizes.
    • 



Using physical streams in place of a logical stream of the same size and format will
not slow down the frame rate of the capture, as long as the minimum frame duration
of the physical and logical streams are the same.


See Also:
/**
     * <p>The camera device is a logical camera backed by two or more physical cameras that are
     * also exposed to the application.</p>
     * <p>Camera application shouldn't assume that there are at most 1 rear camera and 1 front
     * camera in the system. For an application that switches between front and back cameras,
     * the recommendation is to switch between the first rear camera and the first front
     * camera in the list of supported camera devices.</p>
     * <p>This capability requires the camera device to support the following:</p>
     * <ul>
     * <li>The IDs of underlying physical cameras are returned via
     *   {@link android.hardware.camera2.CameraCharacteristics#getPhysicalCameraIds }.</li>
     * <li>This camera device must list static metadata
     *   {@link CameraCharacteristics#LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE android.logicalMultiCamera.sensorSyncType} in
     *   {@link android.hardware.camera2.CameraCharacteristics }.</li>
     * <li>The underlying physical cameras' static metadata must list the following entries,
     *   so that the application can correlate pixels from the physical streams:<ul>
     * <li>{@link CameraCharacteristics#LENS_POSE_REFERENCE android.lens.poseReference}</li>
     * <li>{@link CameraCharacteristics#LENS_POSE_ROTATION android.lens.poseRotation}</li>
     * <li>{@link CameraCharacteristics#LENS_POSE_TRANSLATION android.lens.poseTranslation}</li>
     * <li>{@link CameraCharacteristics#LENS_INTRINSIC_CALIBRATION android.lens.intrinsicCalibration}</li>
     * <li>{@link CameraCharacteristics#LENS_DISTORTION android.lens.distortion}</li>
     * </ul>
     * </li>
     * <li>The SENSOR_INFO_TIMESTAMP_SOURCE of the logical device and physical devices must be
     *   the same.</li>
     * <li>The logical camera device must be LIMITED or higher device.</li>
     * </ul>
     * <p>Both the logical camera device and its underlying physical devices support the
     * mandatory stream combinations required for their device levels.</p>
     * <p>Additionally, for each guaranteed stream combination, the logical camera supports:</p>
     * <ul>
     * <li>For each guaranteed stream combination, the logical camera supports replacing one
     *   logical {@link android.graphics.ImageFormat#YUV_420_888 YUV_420_888}
     *   or raw stream with two physical streams of the same size and format, each from a
     *   separate physical camera, given that the size and format are supported by both
     *   physical cameras.</li>
     * <li>If the logical camera doesn't advertise RAW capability, but the underlying physical
     *   cameras do, the logical camera will support guaranteed stream combinations for RAW
     *   capability, except that the RAW streams will be physical streams, each from a separate
     *   physical camera. This is usually the case when the physical cameras have different
     *   sensor sizes.</li>
     * </ul>
     * <p>Using physical streams in place of a logical stream of the same size and format will
     * not slow down the frame rate of the capture, as long as the minimum frame duration
     * of the physical and logical streams are the same.</p>
     *
     * @see CameraCharacteristics#LENS_DISTORTION
     * @see CameraCharacteristics#LENS_INTRINSIC_CALIBRATION
     * @see CameraCharacteristics#LENS_POSE_REFERENCE
     * @see CameraCharacteristics#LENS_POSE_ROTATION
     * @see CameraCharacteristics#LENS_POSE_TRANSLATION
     * @see CameraCharacteristics#LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     */
    public static final int REQUEST_AVAILABLE_CAPABILITIES_LOGICAL_MULTI_CAMERA = 11;

    
The camera device is a monochrome camera that doesn't contain a color filter array,
and the pixel values on U and V planes are all 128.


See Also:
  • REQUEST_AVAILABLE_CAPABILITIES.REQUEST_AVAILABLE_CAPABILITIES
/**
     * <p>The camera device is a monochrome camera that doesn't contain a color filter array,
     * and the pixel values on U and V planes are all 128.</p>
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     */
    public static final int REQUEST_AVAILABLE_CAPABILITIES_MONOCHROME = 12;

    //
    // Enumeration values for CameraCharacteristics#SCALER_CROPPING_TYPE
    //

    
The camera device only supports centered crop regions.


See Also:
  • SCALER_CROPPING_TYPE.SCALER_CROPPING_TYPE
/**
     * <p>The camera device only supports centered crop regions.</p>
     * @see CameraCharacteristics#SCALER_CROPPING_TYPE
     */
    public static final int SCALER_CROPPING_TYPE_CENTER_ONLY = 0;

    
The camera device supports arbitrarily chosen crop regions.


See Also:
  • SCALER_CROPPING_TYPE.SCALER_CROPPING_TYPE
/**
     * <p>The camera device supports arbitrarily chosen crop regions.</p>
     * @see CameraCharacteristics#SCALER_CROPPING_TYPE
     */
    public static final int SCALER_CROPPING_TYPE_FREEFORM = 1;

    //
    // Enumeration values for CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
    //

    
See Also:
  • SENSOR_INFO_COLOR_FILTER_ARRANGEMENT.SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
/**
     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
     */
    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGGB = 0;

    
See Also:
  • SENSOR_INFO_COLOR_FILTER_ARRANGEMENT.SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
/**
     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
     */
    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GRBG = 1;

    
See Also:
  • SENSOR_INFO_COLOR_FILTER_ARRANGEMENT.SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
/**
     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
     */
    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GBRG = 2;

    
See Also:
  • SENSOR_INFO_COLOR_FILTER_ARRANGEMENT.SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
/**
     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
     */
    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_BGGR = 3;

    
Sensor is not Bayer; output has 3 16-bit
values for each pixel, instead of just 1 16-bit value
per pixel.


See Also:
  • SENSOR_INFO_COLOR_FILTER_ARRANGEMENT.SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
/**
     * <p>Sensor is not Bayer; output has 3 16-bit
     * values for each pixel, instead of just 1 16-bit value
     * per pixel.</p>
     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
     */
    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGB = 4;

    //
    // Enumeration values for CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE
    //

    
Timestamps from android.sensor.timestamp are in nanoseconds and monotonic, but can not be compared to timestamps from other subsystems (e.g. accelerometer, gyro etc.), or other instances of the same or different camera devices in the same system. Timestamps between streams and results for a single camera instance are comparable, and the timestamps for all buffers and the result metadata generated by a single capture are identical.


See Also:
/**
     * <p>Timestamps from {@link CaptureResult#SENSOR_TIMESTAMP android.sensor.timestamp} are in nanoseconds and monotonic,
     * but can not be compared to timestamps from other subsystems
     * (e.g. accelerometer, gyro etc.), or other instances of the same or different
     * camera devices in the same system. Timestamps between streams and results for
     * a single camera instance are comparable, and the timestamps for all buffers
     * and the result metadata generated by a single capture are identical.</p>
     *
     * @see CaptureResult#SENSOR_TIMESTAMP
     * @see CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE
     */
    public static final int SENSOR_INFO_TIMESTAMP_SOURCE_UNKNOWN = 0;

    
Timestamps from android.sensor.timestamp are in the same timebase as SystemClock.elapsedRealtimeNanos, and they can be compared to other timestamps using that base.


See Also:
/**
     * <p>Timestamps from {@link CaptureResult#SENSOR_TIMESTAMP android.sensor.timestamp} are in the same timebase as
     * {@link android.os.SystemClock#elapsedRealtimeNanos },
     * and they can be compared to other timestamps using that base.</p>
     *
     * @see CaptureResult#SENSOR_TIMESTAMP
     * @see CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE
     */
    public static final int SENSOR_INFO_TIMESTAMP_SOURCE_REALTIME = 1;

    //
    // Enumeration values for CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
    //

    
See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT = 1;

    
See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_FLUORESCENT = 2;

    
Incandescent light


See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * <p>Incandescent light</p>
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_TUNGSTEN = 3;

    
See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_FLASH = 4;

    
See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_FINE_WEATHER = 9;

    
See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_CLOUDY_WEATHER = 10;

    
See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_SHADE = 11;

    
D 5700 - 7100K


See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * <p>D 5700 - 7100K</p>
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT_FLUORESCENT = 12;

    
N 4600 - 5400K


See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * <p>N 4600 - 5400K</p>
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_DAY_WHITE_FLUORESCENT = 13;

    
W 3900 - 4500K


See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * <p>W 3900 - 4500K</p>
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_COOL_WHITE_FLUORESCENT = 14;

    
WW 3200 - 3700K


See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * <p>WW 3200 - 3700K</p>
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_WHITE_FLUORESCENT = 15;

    
See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_STANDARD_A = 17;

    
See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_STANDARD_B = 18;

    
See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_STANDARD_C = 19;

    
See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_D55 = 20;

    
See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_D65 = 21;

    
See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_D75 = 22;

    
See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_D50 = 23;

    
See Also:
  • SENSOR_REFERENCE_ILLUMINANT1.SENSOR_REFERENCE_ILLUMINANT1
/**
     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
     */
    public static final int SENSOR_REFERENCE_ILLUMINANT1_ISO_STUDIO_TUNGSTEN = 24;

    //
    // Enumeration values for CameraCharacteristics#LED_AVAILABLE_LEDS
    //

    
android.led.transmit control is used.


See Also:
  • LED_AVAILABLE_LEDS.LED_AVAILABLE_LEDS
@hide
/**
     * <p>android.led.transmit control is used.</p>
     * @see CameraCharacteristics#LED_AVAILABLE_LEDS
     * @hide
     */
    public static final int LED_AVAILABLE_LEDS_TRANSMIT = 0;

    //
    // Enumeration values for CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
    //

    
This camera device does not have enough capabilities to qualify as a FULL device or
better.


Only the stream configurations listed in the LEGACY and LIMITED tables in the createCaptureSession documentation are guaranteed to be supported.


All LIMITED devices support the BACKWARDS_COMPATIBLE capability, indicating basic
support for color image capture. The only exception is that the device may
alternatively support only the DEPTH_OUTPUT capability, if it can only output depth
measurements and not color images.


LIMITED devices and above require the use of android.control.aePrecaptureTrigger to lock exposure metering (and calculate flash power, for cameras with flash) before capturing a high-quality still image.


A LIMITED device that only lists the BACKWARDS_COMPATIBLE capability is only
required to support full-automatic operation and post-processing (OFF is not supported for android.control.aeMode, android.control.afMode, or android.control.awbMode)


Additional capabilities may optionally be supported by a LIMITED-level device, and can be checked for in android.request.availableCapabilities.


See Also:
/**
     * <p>This camera device does not have enough capabilities to qualify as a <code>FULL</code> device or
     * better.</p>
     * <p>Only the stream configurations listed in the <code>LEGACY</code> and <code>LIMITED</code> tables in the
     * {@link android.hardware.camera2.CameraDevice#createCaptureSession createCaptureSession} documentation are guaranteed to be supported.</p>
     * <p>All <code>LIMITED</code> devices support the <code>BACKWARDS_COMPATIBLE</code> capability, indicating basic
     * support for color image capture. The only exception is that the device may
     * alternatively support only the <code>DEPTH_OUTPUT</code> capability, if it can only output depth
     * measurements and not color images.</p>
     * <p><code>LIMITED</code> devices and above require the use of {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}
     * to lock exposure metering (and calculate flash power, for cameras with flash) before
     * capturing a high-quality still image.</p>
     * <p>A <code>LIMITED</code> device that only lists the <code>BACKWARDS_COMPATIBLE</code> capability is only
     * required to support full-automatic operation and post-processing (<code>OFF</code> is not
     * supported for {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode}, {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}, or
     * {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode})</p>
     * <p>Additional capabilities may optionally be supported by a <code>LIMITED</code>-level device, and
     * can be checked for in {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities}.</p>
     *
     * @see CaptureRequest#CONTROL_AE_MODE
     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
     * @see CaptureRequest#CONTROL_AF_MODE
     * @see CaptureRequest#CONTROL_AWB_MODE
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
     */
    public static final int INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED = 0;

    
This camera device is capable of supporting advanced imaging applications.


The stream configurations listed in the FULL, LEGACY and LIMITED tables in the createCaptureSession documentation are guaranteed to be supported.


A FULL device will support below capabilities:



Note: Pre-API level 23, FULL devices also supported arbitrary cropping region (android.scaler.croppingType == FREEFORM); this requirement was relaxed in API level
23, and FULL devices may only support CENTERED cropping.


See Also:
/**
     * <p>This camera device is capable of supporting advanced imaging applications.</p>
     * <p>The stream configurations listed in the <code>FULL</code>, <code>LEGACY</code> and <code>LIMITED</code> tables in the
     * {@link android.hardware.camera2.CameraDevice#createCaptureSession createCaptureSession} documentation are guaranteed to be supported.</p>
     * <p>A <code>FULL</code> device will support below capabilities:</p>
     * <ul>
     * <li><code>BURST_CAPTURE</code> capability ({@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} contains
     *   <code>BURST_CAPTURE</code>)</li>
     * <li>Per frame control ({@link CameraCharacteristics#SYNC_MAX_LATENCY android.sync.maxLatency} <code>==</code> PER_FRAME_CONTROL)</li>
     * <li>Manual sensor control ({@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} contains <code>MANUAL_SENSOR</code>)</li>
     * <li>Manual post-processing control ({@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} contains
     *   <code>MANUAL_POST_PROCESSING</code>)</li>
     * <li>The required exposure time range defined in {@link CameraCharacteristics#SENSOR_INFO_EXPOSURE_TIME_RANGE android.sensor.info.exposureTimeRange}</li>
     * <li>The required maxFrameDuration defined in {@link CameraCharacteristics#SENSOR_INFO_MAX_FRAME_DURATION android.sensor.info.maxFrameDuration}</li>
     * </ul>
     * <p>Note:
     * Pre-API level 23, FULL devices also supported arbitrary cropping region
     * ({@link CameraCharacteristics#SCALER_CROPPING_TYPE android.scaler.croppingType} <code>== FREEFORM</code>); this requirement was relaxed in API level
     * 23, and <code>FULL</code> devices may only support <code>CENTERED</code> cropping.</p>
     *
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     * @see CameraCharacteristics#SCALER_CROPPING_TYPE
     * @see CameraCharacteristics#SENSOR_INFO_EXPOSURE_TIME_RANGE
     * @see CameraCharacteristics#SENSOR_INFO_MAX_FRAME_DURATION
     * @see CameraCharacteristics#SYNC_MAX_LATENCY
     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
     */
    public static final int INFO_SUPPORTED_HARDWARE_LEVEL_FULL = 1;

    
This camera device is running in backward compatibility mode.


Only the stream configurations listed in the LEGACY table in the createCaptureSession documentation are supported.


A LEGACY device does not support per-frame control, manual sensor control, manual
post-processing, arbitrary cropping regions, and has relaxed performance constraints.
No additional capabilities beyond BACKWARD_COMPATIBLE will ever be listed by a
LEGACY device in android.request.availableCapabilities.


In addition, the android.control.aePrecaptureTrigger is not functional on LEGACY
devices. Instead, every request that includes a JPEG-format output target is treated
as triggering a still capture, internally executing a precapture trigger.  This may
fire the flash for flash power metering during precapture, and then fire the flash
for the final capture, if a flash is available on the device and the AE mode is set to
enable the flash.


See Also:
/**
     * <p>This camera device is running in backward compatibility mode.</p>
     * <p>Only the stream configurations listed in the <code>LEGACY</code> table in the {@link android.hardware.camera2.CameraDevice#createCaptureSession createCaptureSession} documentation are supported.</p>
     * <p>A <code>LEGACY</code> device does not support per-frame control, manual sensor control, manual
     * post-processing, arbitrary cropping regions, and has relaxed performance constraints.
     * No additional capabilities beyond <code>BACKWARD_COMPATIBLE</code> will ever be listed by a
     * <code>LEGACY</code> device in {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities}.</p>
     * <p>In addition, the {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} is not functional on <code>LEGACY</code>
     * devices. Instead, every request that includes a JPEG-format output target is treated
     * as triggering a still capture, internally executing a precapture trigger.  This may
     * fire the flash for flash power metering during precapture, and then fire the flash
     * for the final capture, if a flash is available on the device and the AE mode is set to
     * enable the flash.</p>
     *
     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
     */
    public static final int INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY = 2;

    
This camera device is capable of YUV reprocessing and RAW data capture, in addition to
FULL-level capabilities.


The stream configurations listed in the LEVEL_3, RAW, FULL, LEGACY and
LIMITED tables in the createCaptureSession documentation are guaranteed to be supported.


The following additional capabilities are guaranteed to be supported:



See Also:
/**
     * <p>This camera device is capable of YUV reprocessing and RAW data capture, in addition to
     * FULL-level capabilities.</p>
     * <p>The stream configurations listed in the <code>LEVEL_3</code>, <code>RAW</code>, <code>FULL</code>, <code>LEGACY</code> and
     * <code>LIMITED</code> tables in the {@link android.hardware.camera2.CameraDevice#createCaptureSession createCaptureSession} documentation are guaranteed to be supported.</p>
     * <p>The following additional capabilities are guaranteed to be supported:</p>
     * <ul>
     * <li><code>YUV_REPROCESSING</code> capability ({@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} contains
     *   <code>YUV_REPROCESSING</code>)</li>
     * <li><code>RAW</code> capability ({@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} contains
     *   <code>RAW</code>)</li>
     * </ul>
     *
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
     */
    public static final int INFO_SUPPORTED_HARDWARE_LEVEL_3 = 3;

    
This camera device is backed by an external camera connected to this Android device.


The device has capability identical to a LIMITED level device, with the following
exceptions:



See Also:
/**
     * <p>This camera device is backed by an external camera connected to this Android device.</p>
     * <p>The device has capability identical to a LIMITED level device, with the following
     * exceptions:</p>
     * <ul>
     * <li>The device may not report lens/sensor related information such as<ul>
     * <li>{@link CaptureRequest#LENS_FOCAL_LENGTH android.lens.focalLength}</li>
     * <li>{@link CameraCharacteristics#LENS_INFO_HYPERFOCAL_DISTANCE android.lens.info.hyperfocalDistance}</li>
     * <li>{@link CameraCharacteristics#SENSOR_INFO_PHYSICAL_SIZE android.sensor.info.physicalSize}</li>
     * <li>{@link CameraCharacteristics#SENSOR_INFO_WHITE_LEVEL android.sensor.info.whiteLevel}</li>
     * <li>{@link CameraCharacteristics#SENSOR_BLACK_LEVEL_PATTERN android.sensor.blackLevelPattern}</li>
     * <li>{@link CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT android.sensor.info.colorFilterArrangement}</li>
     * <li>{@link CaptureResult#SENSOR_ROLLING_SHUTTER_SKEW android.sensor.rollingShutterSkew}</li>
     * </ul>
     * </li>
     * <li>The device will report 0 for {@link CameraCharacteristics#SENSOR_ORIENTATION android.sensor.orientation}</li>
     * <li>The device has less guarantee on stable framerate, as the framerate partly depends
     *   on the external camera being used.</li>
     * </ul>
     *
     * @see CaptureRequest#LENS_FOCAL_LENGTH
     * @see CameraCharacteristics#LENS_INFO_HYPERFOCAL_DISTANCE
     * @see CameraCharacteristics#SENSOR_BLACK_LEVEL_PATTERN
     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
     * @see CameraCharacteristics#SENSOR_INFO_PHYSICAL_SIZE
     * @see CameraCharacteristics#SENSOR_INFO_WHITE_LEVEL
     * @see CameraCharacteristics#SENSOR_ORIENTATION
     * @see CaptureResult#SENSOR_ROLLING_SHUTTER_SKEW
     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
     */
    public static final int INFO_SUPPORTED_HARDWARE_LEVEL_EXTERNAL = 4;

    //
    // Enumeration values for CameraCharacteristics#SYNC_MAX_LATENCY
    //

    
Every frame has the requests immediately applied.


Changing controls over multiple requests one after another will
produce results that have those controls applied atomically
each frame.


All FULL capability devices will have this as their maxLatency.


See Also:
  • SYNC_MAX_LATENCY.SYNC_MAX_LATENCY
/**
     * <p>Every frame has the requests immediately applied.</p>
     * <p>Changing controls over multiple requests one after another will
     * produce results that have those controls applied atomically
     * each frame.</p>
     * <p>All FULL capability devices will have this as their maxLatency.</p>
     * @see CameraCharacteristics#SYNC_MAX_LATENCY
     */
    public static final int SYNC_MAX_LATENCY_PER_FRAME_CONTROL = 0;

    
Each new frame has some subset (potentially the entire set)
of the past requests applied to the camera settings.


By submitting a series of identical requests, the camera device
will eventually have the camera settings applied, but it is
unknown when that exact point will be.


All LEGACY capability devices will have this as their maxLatency.


See Also:
  • SYNC_MAX_LATENCY.SYNC_MAX_LATENCY
/**
     * <p>Each new frame has some subset (potentially the entire set)
     * of the past requests applied to the camera settings.</p>
     * <p>By submitting a series of identical requests, the camera device
     * will eventually have the camera settings applied, but it is
     * unknown when that exact point will be.</p>
     * <p>All LEGACY capability devices will have this as their maxLatency.</p>
     * @see CameraCharacteristics#SYNC_MAX_LATENCY
     */
    public static final int SYNC_MAX_LATENCY_UNKNOWN = -1;

    //
    // Enumeration values for CameraCharacteristics#LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE
    //

    
A software mechanism is used to synchronize between the physical cameras. As a result,
the timestamp of an image from a physical stream is only an approximation of the
image sensor start-of-exposure time.


See Also:
  • LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE.LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE
/**
     * <p>A software mechanism is used to synchronize between the physical cameras. As a result,
     * the timestamp of an image from a physical stream is only an approximation of the
     * image sensor start-of-exposure time.</p>
     * @see CameraCharacteristics#LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE
     */
    public static final int LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE_APPROXIMATE = 0;

    
The camera device supports frame timestamp synchronization at the hardware level,
and the timestamp of a physical stream image accurately reflects its
start-of-exposure time.


See Also:
  • LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE.LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE
/**
     * <p>The camera device supports frame timestamp synchronization at the hardware level,
     * and the timestamp of a physical stream image accurately reflects its
     * start-of-exposure time.</p>
     * @see CameraCharacteristics#LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE
     */
    public static final int LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE_CALIBRATED = 1;

    //
    // Enumeration values for CaptureRequest#COLOR_CORRECTION_MODE
    //

    
Use the android.colorCorrection.transform matrix and android.colorCorrection.gains to do color conversion.


All advanced white balance adjustments (not specified
by our white balance pipeline) must be disabled.


If AWB is enabled with android.control.awbMode != OFF, then
TRANSFORM_MATRIX is ignored. The camera device will override
this value to either FAST or HIGH_QUALITY.


See Also:
/**
     * <p>Use the {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform} matrix
     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} to do color conversion.</p>
     * <p>All advanced white balance adjustments (not specified
     * by our white balance pipeline) must be disabled.</p>
     * <p>If AWB is enabled with <code>{@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} != OFF</code>, then
     * TRANSFORM_MATRIX is ignored. The camera device will override
     * this value to either FAST or HIGH_QUALITY.</p>
     *
     * @see CaptureRequest#COLOR_CORRECTION_GAINS
     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
     * @see CaptureRequest#CONTROL_AWB_MODE
     * @see CaptureRequest#COLOR_CORRECTION_MODE
     */
    public static final int COLOR_CORRECTION_MODE_TRANSFORM_MATRIX = 0;

    
Color correction processing must not slow down
capture rate relative to sensor raw output.


Advanced white balance adjustments above and beyond
the specified white balance pipeline may be applied.


If AWB is enabled with android.control.awbMode != OFF, then
the camera device uses the last frame's AWB values
(or defaults if AWB has never been run).


See Also:
/**
     * <p>Color correction processing must not slow down
     * capture rate relative to sensor raw output.</p>
     * <p>Advanced white balance adjustments above and beyond
     * the specified white balance pipeline may be applied.</p>
     * <p>If AWB is enabled with <code>{@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} != OFF</code>, then
     * the camera device uses the last frame's AWB values
     * (or defaults if AWB has never been run).</p>
     *
     * @see CaptureRequest#CONTROL_AWB_MODE
     * @see CaptureRequest#COLOR_CORRECTION_MODE
     */
    public static final int COLOR_CORRECTION_MODE_FAST = 1;

    
Color correction processing operates at improved
quality but the capture rate might be reduced (relative to sensor
raw output rate)


Advanced white balance adjustments above and beyond
the specified white balance pipeline may be applied.


If AWB is enabled with android.control.awbMode != OFF, then
the camera device uses the last frame's AWB values
(or defaults if AWB has never been run).


See Also:
/**
     * <p>Color correction processing operates at improved
     * quality but the capture rate might be reduced (relative to sensor
     * raw output rate)</p>
     * <p>Advanced white balance adjustments above and beyond
     * the specified white balance pipeline may be applied.</p>
     * <p>If AWB is enabled with <code>{@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} != OFF</code>, then
     * the camera device uses the last frame's AWB values
     * (or defaults if AWB has never been run).</p>
     *
     * @see CaptureRequest#CONTROL_AWB_MODE
     * @see CaptureRequest#COLOR_CORRECTION_MODE
     */
    public static final int COLOR_CORRECTION_MODE_HIGH_QUALITY = 2;

    //
    // Enumeration values for CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE
    //

    
No aberration correction is applied.


See Also:
  • COLOR_CORRECTION_ABERRATION_MODE.COLOR_CORRECTION_ABERRATION_MODE
/**
     * <p>No aberration correction is applied.</p>
     * @see CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE
     */
    public static final int COLOR_CORRECTION_ABERRATION_MODE_OFF = 0;

    
Aberration correction will not slow down capture rate
relative to sensor raw output.


See Also:
  • COLOR_CORRECTION_ABERRATION_MODE.COLOR_CORRECTION_ABERRATION_MODE
/**
     * <p>Aberration correction will not slow down capture rate
     * relative to sensor raw output.</p>
     * @see CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE
     */
    public static final int COLOR_CORRECTION_ABERRATION_MODE_FAST = 1;

    
Aberration correction operates at improved quality but the capture rate might be
reduced (relative to sensor raw output rate)


See Also:
  • COLOR_CORRECTION_ABERRATION_MODE.COLOR_CORRECTION_ABERRATION_MODE
/**
     * <p>Aberration correction operates at improved quality but the capture rate might be
     * reduced (relative to sensor raw output rate)</p>
     * @see CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE
     */
    public static final int COLOR_CORRECTION_ABERRATION_MODE_HIGH_QUALITY = 2;

    //
    // Enumeration values for CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
    //

    
The camera device will not adjust exposure duration to
avoid banding problems.


See Also:
  • CONTROL_AE_ANTIBANDING_MODE.CONTROL_AE_ANTIBANDING_MODE
/**
     * <p>The camera device will not adjust exposure duration to
     * avoid banding problems.</p>
     * @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
     */
    public static final int CONTROL_AE_ANTIBANDING_MODE_OFF = 0;

    
The camera device will adjust exposure duration to
avoid banding problems with 50Hz illumination sources.


See Also:
  • CONTROL_AE_ANTIBANDING_MODE.CONTROL_AE_ANTIBANDING_MODE
/**
     * <p>The camera device will adjust exposure duration to
     * avoid banding problems with 50Hz illumination sources.</p>
     * @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
     */
    public static final int CONTROL_AE_ANTIBANDING_MODE_50HZ = 1;

    
The camera device will adjust exposure duration to
avoid banding problems with 60Hz illumination
sources.


See Also:
  • CONTROL_AE_ANTIBANDING_MODE.CONTROL_AE_ANTIBANDING_MODE
/**
     * <p>The camera device will adjust exposure duration to
     * avoid banding problems with 60Hz illumination
     * sources.</p>
     * @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
     */
    public static final int CONTROL_AE_ANTIBANDING_MODE_60HZ = 2;

    
The camera device will automatically adapt its
antibanding routine to the current illumination
condition. This is the default mode if AUTO is
available on given camera device.


See Also:
  • CONTROL_AE_ANTIBANDING_MODE.CONTROL_AE_ANTIBANDING_MODE
/**
     * <p>The camera device will automatically adapt its
     * antibanding routine to the current illumination
     * condition. This is the default mode if AUTO is
     * available on given camera device.</p>
     * @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
     */
    public static final int CONTROL_AE_ANTIBANDING_MODE_AUTO = 3;

    //
    // Enumeration values for CaptureRequest#CONTROL_AE_MODE
    //

    
The camera device's autoexposure routine is disabled.


The application-selected android.sensor.exposureTime, android.sensor.sensitivity and android.sensor.frameDuration are used by the camera device, along with android.flash.* fields, if there's a flash unit for this camera device.


Note that auto-white balance (AWB) and auto-focus (AF) behavior is device dependent when AE is in OFF mode. To have consistent behavior across different devices, it is recommended to either set AWB and AF to OFF mode or lock AWB and AF before setting AE to OFF. See android.control.awbMode, android.control.afMode, android.control.awbLock, and android.control.afTrigger for more details.


LEGACY devices do not support the OFF mode and will
override attempts to use this value to ON.


See Also:
/**
     * <p>The camera device's autoexposure routine is disabled.</p>
     * <p>The application-selected {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime},
     * {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity} and
     * {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration} are used by the camera
     * device, along with android.flash.* fields, if there's
     * a flash unit for this camera device.</p>
     * <p>Note that auto-white balance (AWB) and auto-focus (AF)
     * behavior is device dependent when AE is in OFF mode.
     * To have consistent behavior across different devices,
     * it is recommended to either set AWB and AF to OFF mode
     * or lock AWB and AF before setting AE to OFF.
     * See {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode}, {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode},
     * {@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock}, and {@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}
     * for more details.</p>
     * <p>LEGACY devices do not support the OFF mode and will
     * override attempts to use this value to ON.</p>
     *
     * @see CaptureRequest#CONTROL_AF_MODE
     * @see CaptureRequest#CONTROL_AF_TRIGGER
     * @see CaptureRequest#CONTROL_AWB_LOCK
     * @see CaptureRequest#CONTROL_AWB_MODE
     * @see CaptureRequest#SENSOR_EXPOSURE_TIME
     * @see CaptureRequest#SENSOR_FRAME_DURATION
     * @see CaptureRequest#SENSOR_SENSITIVITY
     * @see CaptureRequest#CONTROL_AE_MODE
     */
    public static final int CONTROL_AE_MODE_OFF = 0;

    
The camera device's autoexposure routine is active,
with no flash control.


The application's values for android.sensor.exposureTime, android.sensor.sensitivity, and android.sensor.frameDuration are ignored. The application has control over the various android.flash.* fields.


See Also:
/**
     * <p>The camera device's autoexposure routine is active,
     * with no flash control.</p>
     * <p>The application's values for
     * {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime},
     * {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}, and
     * {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration} are ignored. The
     * application has control over the various
     * android.flash.* fields.</p>
     *
     * @see CaptureRequest#SENSOR_EXPOSURE_TIME
     * @see CaptureRequest#SENSOR_FRAME_DURATION
     * @see CaptureRequest#SENSOR_SENSITIVITY
     * @see CaptureRequest#CONTROL_AE_MODE
     */
    public static final int CONTROL_AE_MODE_ON = 1;

    
Like ON, except that the camera device also controls
the camera's flash unit, firing it in low-light
conditions.


The flash may be fired during a precapture sequence (triggered by android.control.aePrecaptureTrigger) and may be fired for captures for which the android.control.captureIntent field is set to STILL_CAPTURE


See Also:
/**
     * <p>Like ON, except that the camera device also controls
     * the camera's flash unit, firing it in low-light
     * conditions.</p>
     * <p>The flash may be fired during a precapture sequence
     * (triggered by {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}) and
     * may be fired for captures for which the
     * {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} field is set to
     * STILL_CAPTURE</p>
     *
     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
     * @see CaptureRequest#CONTROL_AE_MODE
     */
    public static final int CONTROL_AE_MODE_ON_AUTO_FLASH = 2;

    
Like ON, except that the camera device also controls
the camera's flash unit, always firing it for still
captures.


The flash may be fired during a precapture sequence (triggered by android.control.aePrecaptureTrigger) and will always be fired for captures for which the android.control.captureIntent field is set to STILL_CAPTURE


See Also:
/**
     * <p>Like ON, except that the camera device also controls
     * the camera's flash unit, always firing it for still
     * captures.</p>
     * <p>The flash may be fired during a precapture sequence
     * (triggered by {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}) and
     * will always be fired for captures for which the
     * {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} field is set to
     * STILL_CAPTURE</p>
     *
     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
     * @see CaptureRequest#CONTROL_AE_MODE
     */
    public static final int CONTROL_AE_MODE_ON_ALWAYS_FLASH = 3;

    
Like ON_AUTO_FLASH, but with automatic red eye
reduction.


If deemed necessary by the camera device, a red eye
reduction flash will fire during the precapture
sequence.


See Also:
  • CONTROL_AE_MODE.CONTROL_AE_MODE
/**
     * <p>Like ON_AUTO_FLASH, but with automatic red eye
     * reduction.</p>
     * <p>If deemed necessary by the camera device, a red eye
     * reduction flash will fire during the precapture
     * sequence.</p>
     * @see CaptureRequest#CONTROL_AE_MODE
     */
    public static final int CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE = 4;

    
An external flash has been turned on.


It informs the camera device that an external flash has been turned on, and that
metering (and continuous focus if active) should be quickly recaculated to account
for the external flash. Otherwise, this mode acts like ON.


When the external flash is turned off, AE mode should be changed to one of the
other available AE modes.


If the camera device supports AE external flash mode, android.control.aeState must be FLASH_REQUIRED after the camera device finishes AE scan and it's too dark without flash.


See Also:
/**
     * <p>An external flash has been turned on.</p>
     * <p>It informs the camera device that an external flash has been turned on, and that
     * metering (and continuous focus if active) should be quickly recaculated to account
     * for the external flash. Otherwise, this mode acts like ON.</p>
     * <p>When the external flash is turned off, AE mode should be changed to one of the
     * other available AE modes.</p>
     * <p>If the camera device supports AE external flash mode, {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} must
     * be FLASH_REQUIRED after the camera device finishes AE scan and it's too dark without
     * flash.</p>
     *
     * @see CaptureResult#CONTROL_AE_STATE
     * @see CaptureRequest#CONTROL_AE_MODE
     */
    public static final int CONTROL_AE_MODE_ON_EXTERNAL_FLASH = 5;

    //
    // Enumeration values for CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
    //

    
The trigger is idle.


See Also:
  • CONTROL_AE_PRECAPTURE_TRIGGER.CONTROL_AE_PRECAPTURE_TRIGGER
/**
     * <p>The trigger is idle.</p>
     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
     */
    public static final int CONTROL_AE_PRECAPTURE_TRIGGER_IDLE = 0;

    
The precapture metering sequence will be started
by the camera device.


The exact effect of the precapture trigger depends on
the current AE mode and state.


See Also:
  • CONTROL_AE_PRECAPTURE_TRIGGER.CONTROL_AE_PRECAPTURE_TRIGGER
/**
     * <p>The precapture metering sequence will be started
     * by the camera device.</p>
     * <p>The exact effect of the precapture trigger depends on
     * the current AE mode and state.</p>
     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
     */
    public static final int CONTROL_AE_PRECAPTURE_TRIGGER_START = 1;

    
The camera device will cancel any currently active or completed
precapture metering sequence, the auto-exposure routine will return to its
initial state.


See Also:
  • CONTROL_AE_PRECAPTURE_TRIGGER.CONTROL_AE_PRECAPTURE_TRIGGER
/**
     * <p>The camera device will cancel any currently active or completed
     * precapture metering sequence, the auto-exposure routine will return to its
     * initial state.</p>
     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
     */
    public static final int CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL = 2;

    //
    // Enumeration values for CaptureRequest#CONTROL_AF_MODE
    //

    
The auto-focus routine does not control the lens; android.lens.focusDistance is controlled by the application.


See Also:
/**
     * <p>The auto-focus routine does not control the lens;
     * {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance} is controlled by the
     * application.</p>
     *
     * @see CaptureRequest#LENS_FOCUS_DISTANCE
     * @see CaptureRequest#CONTROL_AF_MODE
     */
    public static final int CONTROL_AF_MODE_OFF = 0;

    
Basic automatic focus mode.


In this mode, the lens does not move unless
the autofocus trigger action is called. When that trigger
is activated, AF will transition to ACTIVE_SCAN, then to
the outcome of the scan (FOCUSED or NOT_FOCUSED).


Always supported if lens is not fixed focus.


Use android.lens.info.minimumFocusDistance to determine if lens is fixed-focus.


Triggering AF_CANCEL resets the lens position to default,
and sets the AF state to INACTIVE.


See Also:
/**
     * <p>Basic automatic focus mode.</p>
     * <p>In this mode, the lens does not move unless
     * the autofocus trigger action is called. When that trigger
     * is activated, AF will transition to ACTIVE_SCAN, then to
     * the outcome of the scan (FOCUSED or NOT_FOCUSED).</p>
     * <p>Always supported if lens is not fixed focus.</p>
     * <p>Use {@link CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance} to determine if lens
     * is fixed-focus.</p>
     * <p>Triggering AF_CANCEL resets the lens position to default,
     * and sets the AF state to INACTIVE.</p>
     *
     * @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE
     * @see CaptureRequest#CONTROL_AF_MODE
     */
    public static final int CONTROL_AF_MODE_AUTO = 1;

    
Close-up focusing mode.


In this mode, the lens does not move unless the
autofocus trigger action is called. When that trigger is
activated, AF will transition to ACTIVE_SCAN, then to
the outcome of the scan (FOCUSED or NOT_FOCUSED). This
mode is optimized for focusing on objects very close to
the camera.


When that trigger is activated, AF will transition to
ACTIVE_SCAN, then to the outcome of the scan (FOCUSED or
NOT_FOCUSED). Triggering cancel AF resets the lens
position to default, and sets the AF state to
INACTIVE.


See Also:
  • CONTROL_AF_MODE.CONTROL_AF_MODE
/**
     * <p>Close-up focusing mode.</p>
     * <p>In this mode, the lens does not move unless the
     * autofocus trigger action is called. When that trigger is
     * activated, AF will transition to ACTIVE_SCAN, then to
     * the outcome of the scan (FOCUSED or NOT_FOCUSED). This
     * mode is optimized for focusing on objects very close to
     * the camera.</p>
     * <p>When that trigger is activated, AF will transition to
     * ACTIVE_SCAN, then to the outcome of the scan (FOCUSED or
     * NOT_FOCUSED). Triggering cancel AF resets the lens
     * position to default, and sets the AF state to
     * INACTIVE.</p>
     * @see CaptureRequest#CONTROL_AF_MODE
     */
    public static final int CONTROL_AF_MODE_MACRO = 2;

    
In this mode, the AF algorithm modifies the lens
position continually to attempt to provide a
constantly-in-focus image stream.


The focusing behavior should be suitable for good quality
video recording; typically this means slower focus
movement and no overshoots. When the AF trigger is not
involved, the AF algorithm should start in INACTIVE state,
and then transition into PASSIVE_SCAN and PASSIVE_FOCUSED
states as appropriate. When the AF trigger is activated,
the algorithm should immediately transition into
AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
lens position until a cancel AF trigger is received.


Once cancel is received, the algorithm should transition
back to INACTIVE and resume passive scan. Note that this
behavior is not identical to CONTINUOUS_PICTURE, since an
ongoing PASSIVE_SCAN must immediately be
canceled.


See Also:
  • CONTROL_AF_MODE.CONTROL_AF_MODE
/**
     * <p>In this mode, the AF algorithm modifies the lens
     * position continually to attempt to provide a
     * constantly-in-focus image stream.</p>
     * <p>The focusing behavior should be suitable for good quality
     * video recording; typically this means slower focus
     * movement and no overshoots. When the AF trigger is not
     * involved, the AF algorithm should start in INACTIVE state,
     * and then transition into PASSIVE_SCAN and PASSIVE_FOCUSED
     * states as appropriate. When the AF trigger is activated,
     * the algorithm should immediately transition into
     * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
     * lens position until a cancel AF trigger is received.</p>
     * <p>Once cancel is received, the algorithm should transition
     * back to INACTIVE and resume passive scan. Note that this
     * behavior is not identical to CONTINUOUS_PICTURE, since an
     * ongoing PASSIVE_SCAN must immediately be
     * canceled.</p>
     * @see CaptureRequest#CONTROL_AF_MODE
     */
    public static final int CONTROL_AF_MODE_CONTINUOUS_VIDEO = 3;

    
In this mode, the AF algorithm modifies the lens
position continually to attempt to provide a
constantly-in-focus image stream.


The focusing behavior should be suitable for still image
capture; typically this means focusing as fast as
possible. When the AF trigger is not involved, the AF
algorithm should start in INACTIVE state, and then
transition into PASSIVE_SCAN and PASSIVE_FOCUSED states as
appropriate as it attempts to maintain focus. When the AF
trigger is activated, the algorithm should finish its
PASSIVE_SCAN if active, and then transition into
AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
lens position until a cancel AF trigger is received.


When the AF cancel trigger is activated, the algorithm
should transition back to INACTIVE and then act as if it
has just been started.


See Also:
  • CONTROL_AF_MODE.CONTROL_AF_MODE
/**
     * <p>In this mode, the AF algorithm modifies the lens
     * position continually to attempt to provide a
     * constantly-in-focus image stream.</p>
     * <p>The focusing behavior should be suitable for still image
     * capture; typically this means focusing as fast as
     * possible. When the AF trigger is not involved, the AF
     * algorithm should start in INACTIVE state, and then
     * transition into PASSIVE_SCAN and PASSIVE_FOCUSED states as
     * appropriate as it attempts to maintain focus. When the AF
     * trigger is activated, the algorithm should finish its
     * PASSIVE_SCAN if active, and then transition into
     * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
     * lens position until a cancel AF trigger is received.</p>
     * <p>When the AF cancel trigger is activated, the algorithm
     * should transition back to INACTIVE and then act as if it
     * has just been started.</p>
     * @see CaptureRequest#CONTROL_AF_MODE
     */
    public static final int CONTROL_AF_MODE_CONTINUOUS_PICTURE = 4;

    
Extended depth of field (digital focus) mode.


The camera device will produce images with an extended
depth of field automatically; no special focusing
operations need to be done before taking a picture.


AF triggers are ignored, and the AF state will always be
INACTIVE.


See Also:
  • CONTROL_AF_MODE.CONTROL_AF_MODE
/**
     * <p>Extended depth of field (digital focus) mode.</p>
     * <p>The camera device will produce images with an extended
     * depth of field automatically; no special focusing
     * operations need to be done before taking a picture.</p>
     * <p>AF triggers are ignored, and the AF state will always be
     * INACTIVE.</p>
     * @see CaptureRequest#CONTROL_AF_MODE
     */
    public static final int CONTROL_AF_MODE_EDOF = 5;

    //
    // Enumeration values for CaptureRequest#CONTROL_AF_TRIGGER
    //

    
The trigger is idle.


See Also:
  • CONTROL_AF_TRIGGER.CONTROL_AF_TRIGGER
/**
     * <p>The trigger is idle.</p>
     * @see CaptureRequest#CONTROL_AF_TRIGGER
     */
    public static final int CONTROL_AF_TRIGGER_IDLE = 0;

    
Autofocus will trigger now.


See Also:
  • CONTROL_AF_TRIGGER.CONTROL_AF_TRIGGER
/**
     * <p>Autofocus will trigger now.</p>
     * @see CaptureRequest#CONTROL_AF_TRIGGER
     */
    public static final int CONTROL_AF_TRIGGER_START = 1;

    
Autofocus will return to its initial
state, and cancel any currently active trigger.


See Also:
  • CONTROL_AF_TRIGGER.CONTROL_AF_TRIGGER
/**
     * <p>Autofocus will return to its initial
     * state, and cancel any currently active trigger.</p>
     * @see CaptureRequest#CONTROL_AF_TRIGGER
     */
    public static final int CONTROL_AF_TRIGGER_CANCEL = 2;

    //
    // Enumeration values for CaptureRequest#CONTROL_AWB_MODE
    //

    
The camera device's auto-white balance routine is disabled.


The application-selected color transform matrix (android.colorCorrection.transform) and gains (android.colorCorrection.gains) are used by the camera device for manual white balance control.


See Also:
/**
     * <p>The camera device's auto-white balance routine is disabled.</p>
     * <p>The application-selected color transform matrix
     * ({@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}) and gains
     * ({@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains}) are used by the camera
     * device for manual white balance control.</p>
     *
     * @see CaptureRequest#COLOR_CORRECTION_GAINS
     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
     * @see CaptureRequest#CONTROL_AWB_MODE
     */
    public static final int CONTROL_AWB_MODE_OFF = 0;

    
The camera device's auto-white balance routine is active.


The application's values for android.colorCorrection.transform and android.colorCorrection.gains are ignored. For devices that support the MANUAL_POST_PROCESSING capability, the values used by the camera device for the transform and gains will be available in the capture result for this request.


See Also:
/**
     * <p>The camera device's auto-white balance routine is active.</p>
     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
     * For devices that support the MANUAL_POST_PROCESSING capability, the
     * values used by the camera device for the transform and gains
     * will be available in the capture result for this request.</p>
     *
     * @see CaptureRequest#COLOR_CORRECTION_GAINS
     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
     * @see CaptureRequest#CONTROL_AWB_MODE
     */
    public static final int CONTROL_AWB_MODE_AUTO = 1;

    
The camera device's auto-white balance routine is disabled;
the camera device uses incandescent light as the assumed scene
illumination for white balance.


While the exact white balance transforms are up to the
camera device, they will approximately match the CIE
standard illuminant A.


The application's values for android.colorCorrection.transform and android.colorCorrection.gains are ignored. For devices that support the MANUAL_POST_PROCESSING capability, the values used by the camera device for the transform and gains will be available in the capture result for this request.


See Also:
/**
     * <p>The camera device's auto-white balance routine is disabled;
     * the camera device uses incandescent light as the assumed scene
     * illumination for white balance.</p>
     * <p>While the exact white balance transforms are up to the
     * camera device, they will approximately match the CIE
     * standard illuminant A.</p>
     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
     * For devices that support the MANUAL_POST_PROCESSING capability, the
     * values used by the camera device for the transform and gains
     * will be available in the capture result for this request.</p>
     *
     * @see CaptureRequest#COLOR_CORRECTION_GAINS
     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
     * @see CaptureRequest#CONTROL_AWB_MODE
     */
    public static final int CONTROL_AWB_MODE_INCANDESCENT = 2;

    
The camera device's auto-white balance routine is disabled;
the camera device uses fluorescent light as the assumed scene
illumination for white balance.


While the exact white balance transforms are up to the
camera device, they will approximately match the CIE
standard illuminant F2.


The application's values for android.colorCorrection.transform and android.colorCorrection.gains are ignored. For devices that support the MANUAL_POST_PROCESSING capability, the values used by the camera device for the transform and gains will be available in the capture result for this request.


See Also:
/**
     * <p>The camera device's auto-white balance routine is disabled;
     * the camera device uses fluorescent light as the assumed scene
     * illumination for white balance.</p>
     * <p>While the exact white balance transforms are up to the
     * camera device, they will approximately match the CIE
     * standard illuminant F2.</p>
     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
     * For devices that support the MANUAL_POST_PROCESSING capability, the
     * values used by the camera device for the transform and gains
     * will be available in the capture result for this request.</p>
     *
     * @see CaptureRequest#COLOR_CORRECTION_GAINS
     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
     * @see CaptureRequest#CONTROL_AWB_MODE
     */
    public static final int CONTROL_AWB_MODE_FLUORESCENT = 3;

    
The camera device's auto-white balance routine is disabled;
the camera device uses warm fluorescent light as the assumed scene
illumination for white balance.


While the exact white balance transforms are up to the
camera device, they will approximately match the CIE
standard illuminant F4.


The application's values for android.colorCorrection.transform and android.colorCorrection.gains are ignored. For devices that support the MANUAL_POST_PROCESSING capability, the values used by the camera device for the transform and gains will be available in the capture result for this request.


See Also:
/**
     * <p>The camera device's auto-white balance routine is disabled;
     * the camera device uses warm fluorescent light as the assumed scene
     * illumination for white balance.</p>
     * <p>While the exact white balance transforms are up to the
     * camera device, they will approximately match the CIE
     * standard illuminant F4.</p>
     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
     * For devices that support the MANUAL_POST_PROCESSING capability, the
     * values used by the camera device for the transform and gains
     * will be available in the capture result for this request.</p>
     *
     * @see CaptureRequest#COLOR_CORRECTION_GAINS
     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
     * @see CaptureRequest#CONTROL_AWB_MODE
     */
    public static final int CONTROL_AWB_MODE_WARM_FLUORESCENT = 4;

    
The camera device's auto-white balance routine is disabled;
the camera device uses daylight light as the assumed scene
illumination for white balance.


While the exact white balance transforms are up to the
camera device, they will approximately match the CIE
standard illuminant D65.


The application's values for android.colorCorrection.transform and android.colorCorrection.gains are ignored. For devices that support the MANUAL_POST_PROCESSING capability, the values used by the camera device for the transform and gains will be available in the capture result for this request.


See Also:
/**
     * <p>The camera device's auto-white balance routine is disabled;
     * the camera device uses daylight light as the assumed scene
     * illumination for white balance.</p>
     * <p>While the exact white balance transforms are up to the
     * camera device, they will approximately match the CIE
     * standard illuminant D65.</p>
     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
     * For devices that support the MANUAL_POST_PROCESSING capability, the
     * values used by the camera device for the transform and gains
     * will be available in the capture result for this request.</p>
     *
     * @see CaptureRequest#COLOR_CORRECTION_GAINS
     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
     * @see CaptureRequest#CONTROL_AWB_MODE
     */
    public static final int CONTROL_AWB_MODE_DAYLIGHT = 5;

    
The camera device's auto-white balance routine is disabled;
the camera device uses cloudy daylight light as the assumed scene
illumination for white balance.


The application's values for android.colorCorrection.transform and android.colorCorrection.gains are ignored. For devices that support the MANUAL_POST_PROCESSING capability, the values used by the camera device for the transform and gains will be available in the capture result for this request.


See Also:
/**
     * <p>The camera device's auto-white balance routine is disabled;
     * the camera device uses cloudy daylight light as the assumed scene
     * illumination for white balance.</p>
     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
     * For devices that support the MANUAL_POST_PROCESSING capability, the
     * values used by the camera device for the transform and gains
     * will be available in the capture result for this request.</p>
     *
     * @see CaptureRequest#COLOR_CORRECTION_GAINS
     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
     * @see CaptureRequest#CONTROL_AWB_MODE
     */
    public static final int CONTROL_AWB_MODE_CLOUDY_DAYLIGHT = 6;

    
The camera device's auto-white balance routine is disabled;
the camera device uses twilight light as the assumed scene
illumination for white balance.


The application's values for android.colorCorrection.transform and android.colorCorrection.gains are ignored. For devices that support the MANUAL_POST_PROCESSING capability, the values used by the camera device for the transform and gains will be available in the capture result for this request.


See Also:
/**
     * <p>The camera device's auto-white balance routine is disabled;
     * the camera device uses twilight light as the assumed scene
     * illumination for white balance.</p>
     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
     * For devices that support the MANUAL_POST_PROCESSING capability, the
     * values used by the camera device for the transform and gains
     * will be available in the capture result for this request.</p>
     *
     * @see CaptureRequest#COLOR_CORRECTION_GAINS
     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
     * @see CaptureRequest#CONTROL_AWB_MODE
     */
    public static final int CONTROL_AWB_MODE_TWILIGHT = 7;

    
The camera device's auto-white balance routine is disabled;
the camera device uses shade light as the assumed scene
illumination for white balance.


The application's values for android.colorCorrection.transform and android.colorCorrection.gains are ignored. For devices that support the MANUAL_POST_PROCESSING capability, the values used by the camera device for the transform and gains will be available in the capture result for this request.


See Also:
/**
     * <p>The camera device's auto-white balance routine is disabled;
     * the camera device uses shade light as the assumed scene
     * illumination for white balance.</p>
     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
     * For devices that support the MANUAL_POST_PROCESSING capability, the
     * values used by the camera device for the transform and gains
     * will be available in the capture result for this request.</p>
     *
     * @see CaptureRequest#COLOR_CORRECTION_GAINS
     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
     * @see CaptureRequest#CONTROL_AWB_MODE
     */
    public static final int CONTROL_AWB_MODE_SHADE = 8;

    //
    // Enumeration values for CaptureRequest#CONTROL_CAPTURE_INTENT
    //

    
The goal of this request doesn't fall into the other
categories. The camera device will default to preview-like
behavior.


See Also:
  • CONTROL_CAPTURE_INTENT.CONTROL_CAPTURE_INTENT
/**
     * <p>The goal of this request doesn't fall into the other
     * categories. The camera device will default to preview-like
     * behavior.</p>
     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
     */
    public static final int CONTROL_CAPTURE_INTENT_CUSTOM = 0;

    
This request is for a preview-like use case.


The precapture trigger may be used to start off a metering
w/flash sequence.


See Also:
  • CONTROL_CAPTURE_INTENT.CONTROL_CAPTURE_INTENT
/**
     * <p>This request is for a preview-like use case.</p>
     * <p>The precapture trigger may be used to start off a metering
     * w/flash sequence.</p>
     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
     */
    public static final int CONTROL_CAPTURE_INTENT_PREVIEW = 1;

    
This request is for a still capture-type
use case.


If the flash unit is under automatic control, it may fire as needed.


See Also:
  • CONTROL_CAPTURE_INTENT.CONTROL_CAPTURE_INTENT
/**
     * <p>This request is for a still capture-type
     * use case.</p>
     * <p>If the flash unit is under automatic control, it may fire as needed.</p>
     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
     */
    public static final int CONTROL_CAPTURE_INTENT_STILL_CAPTURE = 2;

    
This request is for a video recording
use case.


See Also:
  • CONTROL_CAPTURE_INTENT.CONTROL_CAPTURE_INTENT
/**
     * <p>This request is for a video recording
     * use case.</p>
     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
     */
    public static final int CONTROL_CAPTURE_INTENT_VIDEO_RECORD = 3;

    
This request is for a video snapshot (still
image while recording video) use case.


The camera device should take the highest-quality image
possible (given the other settings) without disrupting the
frame rate of video recording.  


See Also:
  • CONTROL_CAPTURE_INTENT.CONTROL_CAPTURE_INTENT
/**
     * <p>This request is for a video snapshot (still
     * image while recording video) use case.</p>
     * <p>The camera device should take the highest-quality image
     * possible (given the other settings) without disrupting the
     * frame rate of video recording.  </p>
     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
     */
    public static final int CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT = 4;

    
This request is for a ZSL usecase; the
application will stream full-resolution images and
reprocess one or several later for a final
capture.


See Also:
  • CONTROL_CAPTURE_INTENT.CONTROL_CAPTURE_INTENT
/**
     * <p>This request is for a ZSL usecase; the
     * application will stream full-resolution images and
     * reprocess one or several later for a final
     * capture.</p>
     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
     */
    public static final int CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG = 5;

    
This request is for manual capture use case where
the applications want to directly control the capture parameters.


For example, the application may wish to manually control android.sensor.exposureTime, android.sensor.sensitivity, etc.


See Also:
/**
     * <p>This request is for manual capture use case where
     * the applications want to directly control the capture parameters.</p>
     * <p>For example, the application may wish to manually control
     * {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}, {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}, etc.</p>
     *
     * @see CaptureRequest#SENSOR_EXPOSURE_TIME
     * @see CaptureRequest#SENSOR_SENSITIVITY
     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
     */
    public static final int CONTROL_CAPTURE_INTENT_MANUAL = 6;

    
This request is for a motion tracking use case, where
the application will use camera and inertial sensor data to
locate and track objects in the world.


The camera device auto-exposure routine will limit the exposure time
of the camera to no more than 20 milliseconds, to minimize motion blur.


See Also:
  • CONTROL_CAPTURE_INTENT.CONTROL_CAPTURE_INTENT
/**
     * <p>This request is for a motion tracking use case, where
     * the application will use camera and inertial sensor data to
     * locate and track objects in the world.</p>
     * <p>The camera device auto-exposure routine will limit the exposure time
     * of the camera to no more than 20 milliseconds, to minimize motion blur.</p>
     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
     */
    public static final int CONTROL_CAPTURE_INTENT_MOTION_TRACKING = 7;

    //
    // Enumeration values for CaptureRequest#CONTROL_EFFECT_MODE
    //

    
No color effect will be applied.


See Also:
  • CONTROL_EFFECT_MODE.CONTROL_EFFECT_MODE
/**
     * <p>No color effect will be applied.</p>
     * @see CaptureRequest#CONTROL_EFFECT_MODE
     */
    public static final int CONTROL_EFFECT_MODE_OFF = 0;

    
A "monocolor" effect where the image is mapped into
a single color.


This will typically be grayscale.


See Also:
  • CONTROL_EFFECT_MODE.CONTROL_EFFECT_MODE
/**
     * <p>A "monocolor" effect where the image is mapped into
     * a single color.</p>
     * <p>This will typically be grayscale.</p>
     * @see CaptureRequest#CONTROL_EFFECT_MODE
     */
    public static final int CONTROL_EFFECT_MODE_MONO = 1;

    
A "photo-negative" effect where the image's colors
are inverted.


See Also:
  • CONTROL_EFFECT_MODE.CONTROL_EFFECT_MODE
/**
     * <p>A "photo-negative" effect where the image's colors
     * are inverted.</p>
     * @see CaptureRequest#CONTROL_EFFECT_MODE
     */
    public static final int CONTROL_EFFECT_MODE_NEGATIVE = 2;

    
A "solarisation" effect (Sabattier effect) where the
image is wholly or partially reversed in
tone.


See Also:
  • CONTROL_EFFECT_MODE.CONTROL_EFFECT_MODE
/**
     * <p>A "solarisation" effect (Sabattier effect) where the
     * image is wholly or partially reversed in
     * tone.</p>
     * @see CaptureRequest#CONTROL_EFFECT_MODE
     */
    public static final int CONTROL_EFFECT_MODE_SOLARIZE = 3;

    
A "sepia" effect where the image is mapped into warm
gray, red, and brown tones.


See Also:
  • CONTROL_EFFECT_MODE.CONTROL_EFFECT_MODE
/**
     * <p>A "sepia" effect where the image is mapped into warm
     * gray, red, and brown tones.</p>
     * @see CaptureRequest#CONTROL_EFFECT_MODE
     */
    public static final int CONTROL_EFFECT_MODE_SEPIA = 4;

    
A "posterization" effect where the image uses
discrete regions of tone rather than a continuous
gradient of tones.


See Also:
  • CONTROL_EFFECT_MODE.CONTROL_EFFECT_MODE
/**
     * <p>A "posterization" effect where the image uses
     * discrete regions of tone rather than a continuous
     * gradient of tones.</p>
     * @see CaptureRequest#CONTROL_EFFECT_MODE
     */
    public static final int CONTROL_EFFECT_MODE_POSTERIZE = 5;

    
A "whiteboard" effect where the image is typically displayed
as regions of white, with black or grey details.


See Also:
  • CONTROL_EFFECT_MODE.CONTROL_EFFECT_MODE
/**
     * <p>A "whiteboard" effect where the image is typically displayed
     * as regions of white, with black or grey details.</p>
     * @see CaptureRequest#CONTROL_EFFECT_MODE
     */
    public static final int CONTROL_EFFECT_MODE_WHITEBOARD = 6;

    
A "blackboard" effect where the image is typically displayed
as regions of black, with white or grey details.


See Also:
  • CONTROL_EFFECT_MODE.CONTROL_EFFECT_MODE
/**
     * <p>A "blackboard" effect where the image is typically displayed
     * as regions of black, with white or grey details.</p>
     * @see CaptureRequest#CONTROL_EFFECT_MODE
     */
    public static final int CONTROL_EFFECT_MODE_BLACKBOARD = 7;

    
An "aqua" effect where a blue hue is added to the image.


See Also:
  • CONTROL_EFFECT_MODE.CONTROL_EFFECT_MODE
/**
     * <p>An "aqua" effect where a blue hue is added to the image.</p>
     * @see CaptureRequest#CONTROL_EFFECT_MODE
     */
    public static final int CONTROL_EFFECT_MODE_AQUA = 8;

    //
    // Enumeration values for CaptureRequest#CONTROL_MODE
    //

    
Full application control of pipeline.


All control by the device's metering and focusing (3A) routines is disabled, and no other settings in android.control.* have any effect, except that android.control.captureIntent may be used by the camera device to select post-processing values for processing blocks that do not allow for manual control, or are not exposed by the camera API.


However, the camera device's 3A routines may continue to
collect statistics and update their internal state so that
when control is switched to AUTO mode, good control values
can be immediately applied.


See Also:
/**
     * <p>Full application control of pipeline.</p>
     * <p>All control by the device's metering and focusing (3A)
     * routines is disabled, and no other settings in
     * android.control.* have any effect, except that
     * {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} may be used by the camera
     * device to select post-processing values for processing
     * blocks that do not allow for manual control, or are not
     * exposed by the camera API.</p>
     * <p>However, the camera device's 3A routines may continue to
     * collect statistics and update their internal state so that
     * when control is switched to AUTO mode, good control values
     * can be immediately applied.</p>
     *
     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
     * @see CaptureRequest#CONTROL_MODE
     */
    public static final int CONTROL_MODE_OFF = 0;

    
Use settings for each individual 3A routine.


Manual control of capture parameters is disabled. All
controls in android.control.* besides sceneMode take
effect.


See Also:
  • CONTROL_MODE.CONTROL_MODE
/**
     * <p>Use settings for each individual 3A routine.</p>
     * <p>Manual control of capture parameters is disabled. All
     * controls in android.control.* besides sceneMode take
     * effect.</p>
     * @see CaptureRequest#CONTROL_MODE
     */
    public static final int CONTROL_MODE_AUTO = 1;

    
Use a specific scene mode.


Enabling this disables control.aeMode, control.awbMode and control.afMode controls; the camera device will ignore those settings while USE_SCENE_MODE is active (except for FACE_PRIORITY scene mode). Other control entries are still active. This setting can only be used if scene mode is supported (i.e. android.control.availableSceneModes contain some modes other than DISABLED).


See Also:
/**
     * <p>Use a specific scene mode.</p>
     * <p>Enabling this disables control.aeMode, control.awbMode and
     * control.afMode controls; the camera device will ignore
     * those settings while USE_SCENE_MODE is active (except for
     * FACE_PRIORITY scene mode). Other control entries are still active.
     * This setting can only be used if scene mode is supported (i.e.
     * {@link CameraCharacteristics#CONTROL_AVAILABLE_SCENE_MODES android.control.availableSceneModes}
     * contain some modes other than DISABLED).</p>
     *
     * @see CameraCharacteristics#CONTROL_AVAILABLE_SCENE_MODES
     * @see CaptureRequest#CONTROL_MODE
     */
    public static final int CONTROL_MODE_USE_SCENE_MODE = 2;

    
Same as OFF mode, except that this capture will not be
used by camera device background auto-exposure, auto-white balance and
auto-focus algorithms (3A) to update their statistics.


Specifically, the 3A routines are locked to the last
values set from a request with AUTO, OFF, or
USE_SCENE_MODE, and any statistics or state updates
collected from manual captures with OFF_KEEP_STATE will be
discarded by the camera device.


See Also:
  • CONTROL_MODE.CONTROL_MODE
/**
     * <p>Same as OFF mode, except that this capture will not be
     * used by camera device background auto-exposure, auto-white balance and
     * auto-focus algorithms (3A) to update their statistics.</p>
     * <p>Specifically, the 3A routines are locked to the last
     * values set from a request with AUTO, OFF, or
     * USE_SCENE_MODE, and any statistics or state updates
     * collected from manual captures with OFF_KEEP_STATE will be
     * discarded by the camera device.</p>
     * @see CaptureRequest#CONTROL_MODE
     */
    public static final int CONTROL_MODE_OFF_KEEP_STATE = 3;

    //
    // Enumeration values for CaptureRequest#CONTROL_SCENE_MODE
    //

    
Indicates that no scene modes are set for a given capture request.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Indicates that no scene modes are set for a given capture request.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_DISABLED = 0;

    
If face detection support exists, use face
detection data for auto-focus, auto-white balance, and
auto-exposure routines.


If face detection statistics are disabled (i.e. android.statistics.faceDetectMode is set to OFF), this should still operate correctly (but will not return face detection statistics to the framework).


Unlike the other scene modes, android.control.aeMode, android.control.awbMode, and android.control.afMode remain active when FACE_PRIORITY is set.


See Also:
/**
     * <p>If face detection support exists, use face
     * detection data for auto-focus, auto-white balance, and
     * auto-exposure routines.</p>
     * <p>If face detection statistics are disabled
     * (i.e. {@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} is set to OFF),
     * this should still operate correctly (but will not return
     * face detection statistics to the framework).</p>
     * <p>Unlike the other scene modes, {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode},
     * {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode}, and {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}
     * remain active when FACE_PRIORITY is set.</p>
     *
     * @see CaptureRequest#CONTROL_AE_MODE
     * @see CaptureRequest#CONTROL_AF_MODE
     * @see CaptureRequest#CONTROL_AWB_MODE
     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_FACE_PRIORITY = 1;

    
Optimized for photos of quickly moving objects.


Similar to SPORTS.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized for photos of quickly moving objects.</p>
     * <p>Similar to SPORTS.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_ACTION = 2;

    
Optimized for still photos of people.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized for still photos of people.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_PORTRAIT = 3;

    
Optimized for photos of distant macroscopic objects.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized for photos of distant macroscopic objects.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_LANDSCAPE = 4;

    
Optimized for low-light settings.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized for low-light settings.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_NIGHT = 5;

    
Optimized for still photos of people in low-light
settings.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized for still photos of people in low-light
     * settings.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_NIGHT_PORTRAIT = 6;

    
Optimized for dim, indoor settings where flash must
remain off.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized for dim, indoor settings where flash must
     * remain off.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_THEATRE = 7;

    
Optimized for bright, outdoor beach settings.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized for bright, outdoor beach settings.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_BEACH = 8;

    
Optimized for bright, outdoor settings containing snow.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized for bright, outdoor settings containing snow.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_SNOW = 9;

    
Optimized for scenes of the setting sun.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized for scenes of the setting sun.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_SUNSET = 10;

    
Optimized to avoid blurry photos due to small amounts of
device motion (for example: due to hand shake).


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized to avoid blurry photos due to small amounts of
     * device motion (for example: due to hand shake).</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_STEADYPHOTO = 11;

    
Optimized for nighttime photos of fireworks.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized for nighttime photos of fireworks.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_FIREWORKS = 12;

    
Optimized for photos of quickly moving people.


Similar to ACTION.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized for photos of quickly moving people.</p>
     * <p>Similar to ACTION.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_SPORTS = 13;

    
Optimized for dim, indoor settings with multiple moving
people.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized for dim, indoor settings with multiple moving
     * people.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_PARTY = 14;

    
Optimized for dim settings where the main light source
is a flame.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized for dim settings where the main light source
     * is a flame.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_CANDLELIGHT = 15;

    
Optimized for accurately capturing a photo of barcode
for use by camera applications that wish to read the
barcode value.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
/**
     * <p>Optimized for accurately capturing a photo of barcode
     * for use by camera applications that wish to read the
     * barcode value.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_BARCODE = 16;

    
This is deprecated, please use CameraDevice.createConstrainedHighSpeedCaptureSession and CameraConstrainedHighSpeedCaptureSession.createHighSpeedRequestList for high speed video recording.


Optimized for high speed video recording (frame rate >=60fps) use case.


The supported high speed video sizes and fps ranges are specified in android.control.availableHighSpeedVideoConfigurations. To get desired output frame rates, the application is only allowed to select video size and fps range combinations listed in this static metadata. The fps range can be control via android.control.aeTargetFpsRange.


In this mode, the camera device will override aeMode, awbMode, and afMode to ON, ON, and CONTINUOUS_VIDEO, respectively. All post-processing block mode controls will be overridden to be FAST. Therefore, no manual control of capture and post-processing parameters is possible. All other controls operate the same as when android.control.mode == AUTO. This means that all other android.control.* fields continue to work, such as



Outside of android.control.*, the following controls will work:



For high speed recording use case, the actual maximum supported frame rate may
be lower than what camera can output, depending on the destination Surfaces for
the image data. For example, if the destination surface is from video encoder,
the application need check if the video encoder is capable of supporting the
high frame rate for a given video size, or it will end up with lower recording
frame rate. If the destination surface is from preview window, the preview frame
rate will be bounded by the screen refresh rate.


The camera device will only support up to 2 output high speed streams
(processed non-stalling format defined in android.request.maxNumOutputStreams)
in this mode. This control will be effective only if all of below conditions are true:


    

  • The application created no more than maxNumHighSpeedStreams processed non-stalling
format output streams, where maxNumHighSpeedStreams is calculated as
min(2, android.request.maxNumOutputStreams[Processed (but not-stalling)]).
    • 

  • The stream sizes are selected from the sizes reported by
android.control.availableHighSpeedVideoConfigurations.
    • 

  • No processed non-stalling or raw streams are configured.
    • 



When above conditions are NOT satistied, the controls of this mode and android.control.aeTargetFpsRange will be ignored by the camera device, the camera device will fall back to android.control.mode == AUTO,
and the returned capture result metadata will give the fps range choosen
by the camera device.


Switching into or out of this mode may trigger some camera ISP/sensor
reconfigurations, which may introduce extra latency. It is recommended that
the application avoids unnecessary scene mode switch as much as possible.


See Also:
Deprecated:Please refer to this API documentation to find the alternatives
/**
     * <p>This is deprecated, please use {@link android.hardware.camera2.CameraDevice#createConstrainedHighSpeedCaptureSession }
     * and {@link android.hardware.camera2.CameraConstrainedHighSpeedCaptureSession#createHighSpeedRequestList }
     * for high speed video recording.</p>
     * <p>Optimized for high speed video recording (frame rate &gt;=60fps) use case.</p>
     * <p>The supported high speed video sizes and fps ranges are specified in
     * android.control.availableHighSpeedVideoConfigurations. To get desired
     * output frame rates, the application is only allowed to select video size
     * and fps range combinations listed in this static metadata. The fps range
     * can be control via {@link CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE android.control.aeTargetFpsRange}.</p>
     * <p>In this mode, the camera device will override aeMode, awbMode, and afMode to
     * ON, ON, and CONTINUOUS_VIDEO, respectively. All post-processing block mode
     * controls will be overridden to be FAST. Therefore, no manual control of capture
     * and post-processing parameters is possible. All other controls operate the
     * same as when {@link CaptureRequest#CONTROL_MODE android.control.mode} == AUTO. This means that all other
     * android.control.* fields continue to work, such as</p>
     * <ul>
     * <li>{@link CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE android.control.aeTargetFpsRange}</li>
     * <li>{@link CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION android.control.aeExposureCompensation}</li>
     * <li>{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock}</li>
     * <li>{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock}</li>
     * <li>{@link CaptureRequest#CONTROL_EFFECT_MODE android.control.effectMode}</li>
     * <li>{@link CaptureRequest#CONTROL_AE_REGIONS android.control.aeRegions}</li>
     * <li>{@link CaptureRequest#CONTROL_AF_REGIONS android.control.afRegions}</li>
     * <li>{@link CaptureRequest#CONTROL_AWB_REGIONS android.control.awbRegions}</li>
     * <li>{@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}</li>
     * <li>{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}</li>
     * </ul>
     * <p>Outside of android.control.*, the following controls will work:</p>
     * <ul>
     * <li>{@link CaptureRequest#FLASH_MODE android.flash.mode} (automatic flash for still capture will not work since aeMode is ON)</li>
     * <li>{@link CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE android.lens.opticalStabilizationMode} (if it is supported)</li>
     * <li>{@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion}</li>
     * <li>{@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode}</li>
     * </ul>
     * <p>For high speed recording use case, the actual maximum supported frame rate may
     * be lower than what camera can output, depending on the destination Surfaces for
     * the image data. For example, if the destination surface is from video encoder,
     * the application need check if the video encoder is capable of supporting the
     * high frame rate for a given video size, or it will end up with lower recording
     * frame rate. If the destination surface is from preview window, the preview frame
     * rate will be bounded by the screen refresh rate.</p>
     * <p>The camera device will only support up to 2 output high speed streams
     * (processed non-stalling format defined in android.request.maxNumOutputStreams)
     * in this mode. This control will be effective only if all of below conditions are true:</p>
     * <ul>
     * <li>The application created no more than maxNumHighSpeedStreams processed non-stalling
     * format output streams, where maxNumHighSpeedStreams is calculated as
     * min(2, android.request.maxNumOutputStreams[Processed (but not-stalling)]).</li>
     * <li>The stream sizes are selected from the sizes reported by
     * android.control.availableHighSpeedVideoConfigurations.</li>
     * <li>No processed non-stalling or raw streams are configured.</li>
     * </ul>
     * <p>When above conditions are NOT satistied, the controls of this mode and
     * {@link CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE android.control.aeTargetFpsRange} will be ignored by the camera device,
     * the camera device will fall back to {@link CaptureRequest#CONTROL_MODE android.control.mode} <code>==</code> AUTO,
     * and the returned capture result metadata will give the fps range choosen
     * by the camera device.</p>
     * <p>Switching into or out of this mode may trigger some camera ISP/sensor
     * reconfigurations, which may introduce extra latency. It is recommended that
     * the application avoids unnecessary scene mode switch as much as possible.</p>
     *
     * @see CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION
     * @see CaptureRequest#CONTROL_AE_LOCK
     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
     * @see CaptureRequest#CONTROL_AE_REGIONS
     * @see CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE
     * @see CaptureRequest#CONTROL_AF_REGIONS
     * @see CaptureRequest#CONTROL_AF_TRIGGER
     * @see CaptureRequest#CONTROL_AWB_LOCK
     * @see CaptureRequest#CONTROL_AWB_REGIONS
     * @see CaptureRequest#CONTROL_EFFECT_MODE
     * @see CaptureRequest#CONTROL_MODE
     * @see CaptureRequest#FLASH_MODE
     * @see CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE
     * @see CaptureRequest#SCALER_CROP_REGION
     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
     * @see CaptureRequest#CONTROL_SCENE_MODE
     * @deprecated Please refer to this API documentation to find the alternatives
     */
    @Deprecated
    public static final int CONTROL_SCENE_MODE_HIGH_SPEED_VIDEO = 17;

    
Turn on a device-specific high dynamic range (HDR) mode.


In this scene mode, the camera device captures images
that keep a larger range of scene illumination levels
visible in the final image. For example, when taking a
picture of a object in front of a bright window, both
the object and the scene through the window may be
visible when using HDR mode, while in normal AUTO mode,
one or the other may be poorly exposed. As a tradeoff,
HDR mode generally takes much longer to capture a single
image, has no user control, and may have other artifacts
depending on the HDR method used.


Therefore, HDR captures operate at a much slower rate
than regular captures.


In this mode, on LIMITED or FULL devices, when a request is made with a android.control.captureIntent of STILL_CAPTURE, the camera device will capture an image using a high dynamic range capture technique. On LEGACY devices, captures that target a JPEG-format output will be captured with HDR, and the capture intent is not relevant.


The HDR capture may involve the device capturing a burst
of images internally and combining them into one, or it
may involve the device using specialized high dynamic
range capture hardware. In all cases, a single image is
produced in response to a capture request submitted
while in HDR mode.


Since substantial post-processing is generally needed to
produce an HDR image, only YUV, PRIVATE, and JPEG
outputs are supported for LIMITED/FULL device HDR
captures, and only JPEG outputs are supported for LEGACY
HDR captures. Using a RAW output for HDR capture is not
supported.


Some devices may also support always-on HDR, which
applies HDR processing at full frame rate.  For these
devices, intents other than STILL_CAPTURE will also
produce an HDR output with no frame rate impact compared
to normal operation, though the quality may be lower
than for STILL_CAPTURE intents.


If SCENE_MODE_HDR is used with unsupported output types
or capture intents, the images captured will be as if
the SCENE_MODE was not enabled at all.


See Also:
/**
     * <p>Turn on a device-specific high dynamic range (HDR) mode.</p>
     * <p>In this scene mode, the camera device captures images
     * that keep a larger range of scene illumination levels
     * visible in the final image. For example, when taking a
     * picture of a object in front of a bright window, both
     * the object and the scene through the window may be
     * visible when using HDR mode, while in normal AUTO mode,
     * one or the other may be poorly exposed. As a tradeoff,
     * HDR mode generally takes much longer to capture a single
     * image, has no user control, and may have other artifacts
     * depending on the HDR method used.</p>
     * <p>Therefore, HDR captures operate at a much slower rate
     * than regular captures.</p>
     * <p>In this mode, on LIMITED or FULL devices, when a request
     * is made with a {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} of
     * STILL_CAPTURE, the camera device will capture an image
     * using a high dynamic range capture technique.  On LEGACY
     * devices, captures that target a JPEG-format output will
     * be captured with HDR, and the capture intent is not
     * relevant.</p>
     * <p>The HDR capture may involve the device capturing a burst
     * of images internally and combining them into one, or it
     * may involve the device using specialized high dynamic
     * range capture hardware. In all cases, a single image is
     * produced in response to a capture request submitted
     * while in HDR mode.</p>
     * <p>Since substantial post-processing is generally needed to
     * produce an HDR image, only YUV, PRIVATE, and JPEG
     * outputs are supported for LIMITED/FULL device HDR
     * captures, and only JPEG outputs are supported for LEGACY
     * HDR captures. Using a RAW output for HDR capture is not
     * supported.</p>
     * <p>Some devices may also support always-on HDR, which
     * applies HDR processing at full frame rate.  For these
     * devices, intents other than STILL_CAPTURE will also
     * produce an HDR output with no frame rate impact compared
     * to normal operation, though the quality may be lower
     * than for STILL_CAPTURE intents.</p>
     * <p>If SCENE_MODE_HDR is used with unsupported output types
     * or capture intents, the images captured will be as if
     * the SCENE_MODE was not enabled at all.</p>
     *
     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
     * @see CaptureRequest#CONTROL_SCENE_MODE
     */
    public static final int CONTROL_SCENE_MODE_HDR = 18;

    
Same as FACE_PRIORITY scene mode, except that the camera device will choose higher sensitivity values (android.sensor.sensitivity) under low light conditions.


The camera device may be tuned to expose the images in a reduced sensitivity range to produce the best quality images. For example, if the android.sensor.info.sensitivityRange gives range of [100, 1600], the camera device auto-exposure routine tuning process may limit the actual exposure sensitivity range to [100, 1200] to ensure that the noise level isn't exessive in order to preserve the image quality. Under this situation, the image under low light may be under-exposed when the sensor max exposure time (bounded by the android.control.aeTargetFpsRange when android.control.aeMode is one of the ON_* modes) and effective max sensitivity are reached. This scene mode allows the camera device auto-exposure routine to increase the sensitivity up to the max sensitivity specified by android.sensor.info.sensitivityRange when the scene is too dark and the max exposure time is reached. The captured images may be noisier compared with the images captured in normal FACE_PRIORITY mode; therefore, it is recommended that the application only use this scene mode when it is capable of reducing the noise level of the captured images.


Unlike the other scene modes, android.control.aeMode, android.control.awbMode, and android.control.afMode remain active when FACE_PRIORITY_LOW_LIGHT is set.


See Also:
@hide
/**
     * <p>Same as FACE_PRIORITY scene mode, except that the camera
     * device will choose higher sensitivity values ({@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity})
     * under low light conditions.</p>
     * <p>The camera device may be tuned to expose the images in a reduced
     * sensitivity range to produce the best quality images. For example,
     * if the {@link CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE android.sensor.info.sensitivityRange} gives range of [100, 1600],
     * the camera device auto-exposure routine tuning process may limit the actual
     * exposure sensitivity range to [100, 1200] to ensure that the noise level isn't
     * exessive in order to preserve the image quality. Under this situation, the image under
     * low light may be under-exposed when the sensor max exposure time (bounded by the
     * {@link CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE android.control.aeTargetFpsRange} when {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is one of the
     * ON_* modes) and effective max sensitivity are reached. This scene mode allows the
     * camera device auto-exposure routine to increase the sensitivity up to the max
     * sensitivity specified by {@link CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE android.sensor.info.sensitivityRange} when the scene is too
     * dark and the max exposure time is reached. The captured images may be noisier
     * compared with the images captured in normal FACE_PRIORITY mode; therefore, it is
     * recommended that the application only use this scene mode when it is capable of
     * reducing the noise level of the captured images.</p>
     * <p>Unlike the other scene modes, {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode},
     * {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode}, and {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}
     * remain active when FACE_PRIORITY_LOW_LIGHT is set.</p>
     *
     * @see CaptureRequest#CONTROL_AE_MODE
     * @see CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE
     * @see CaptureRequest#CONTROL_AF_MODE
     * @see CaptureRequest#CONTROL_AWB_MODE
     * @see CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE
     * @see CaptureRequest#SENSOR_SENSITIVITY
     * @see CaptureRequest#CONTROL_SCENE_MODE
     * @hide
     */
    public static final int CONTROL_SCENE_MODE_FACE_PRIORITY_LOW_LIGHT = 19;

    
Scene mode values within the range of
[DEVICE_CUSTOM_START, DEVICE_CUSTOM_END] are reserved for device specific
customized scene modes.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
@hide
/**
     * <p>Scene mode values within the range of
     * <code>[DEVICE_CUSTOM_START, DEVICE_CUSTOM_END]</code> are reserved for device specific
     * customized scene modes.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     * @hide
     */
    public static final int CONTROL_SCENE_MODE_DEVICE_CUSTOM_START = 100;

    
Scene mode values within the range of
[DEVICE_CUSTOM_START, DEVICE_CUSTOM_END] are reserved for device specific
customized scene modes.


See Also:
  • CONTROL_SCENE_MODE.CONTROL_SCENE_MODE
@hide
/**
     * <p>Scene mode values within the range of
     * <code>[DEVICE_CUSTOM_START, DEVICE_CUSTOM_END]</code> are reserved for device specific
     * customized scene modes.</p>
     * @see CaptureRequest#CONTROL_SCENE_MODE
     * @hide
     */
    public static final int CONTROL_SCENE_MODE_DEVICE_CUSTOM_END = 127;

    //
    // Enumeration values for CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE
    //

    
Video stabilization is disabled.


See Also:
  • CONTROL_VIDEO_STABILIZATION_MODE.CONTROL_VIDEO_STABILIZATION_MODE
/**
     * <p>Video stabilization is disabled.</p>
     * @see CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE
     */
    public static final int CONTROL_VIDEO_STABILIZATION_MODE_OFF = 0;

    
Video stabilization is enabled.


See Also:
  • CONTROL_VIDEO_STABILIZATION_MODE.CONTROL_VIDEO_STABILIZATION_MODE
/**
     * <p>Video stabilization is enabled.</p>
     * @see CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE
     */
    public static final int CONTROL_VIDEO_STABILIZATION_MODE_ON = 1;

    //
    // Enumeration values for CaptureRequest#EDGE_MODE
    //

    
No edge enhancement is applied.


See Also:
  • EDGE_MODE.EDGE_MODE
/**
     * <p>No edge enhancement is applied.</p>
     * @see CaptureRequest#EDGE_MODE
     */
    public static final int EDGE_MODE_OFF = 0;

    
Apply edge enhancement at a quality level that does not slow down frame rate
relative to sensor output. It may be the same as OFF if edge enhancement will
slow down frame rate relative to sensor.


See Also:
  • EDGE_MODE.EDGE_MODE
/**
     * <p>Apply edge enhancement at a quality level that does not slow down frame rate
     * relative to sensor output. It may be the same as OFF if edge enhancement will
     * slow down frame rate relative to sensor.</p>
     * @see CaptureRequest#EDGE_MODE
     */
    public static final int EDGE_MODE_FAST = 1;

    
Apply high-quality edge enhancement, at a cost of possibly reduced output frame rate.


See Also:
  • EDGE_MODE.EDGE_MODE
/**
     * <p>Apply high-quality edge enhancement, at a cost of possibly reduced output frame rate.</p>
     * @see CaptureRequest#EDGE_MODE
     */
    public static final int EDGE_MODE_HIGH_QUALITY = 2;

    
Edge enhancement is applied at different levels for different output streams, based on resolution. Streams at maximum recording resolution (see CameraDevice.createCaptureSession) or below have edge enhancement applied, while higher-resolution streams have no edge enhancement applied. The level of edge enhancement for low-resolution streams is tuned so that frame rate is not impacted, and the quality is equal to or better than FAST (since it is only applied to lower-resolution outputs, quality may improve from FAST).


This mode is intended to be used by applications operating in a zero-shutter-lag mode
with YUV or PRIVATE reprocessing, where the application continuously captures
high-resolution intermediate buffers into a circular buffer, from which a final image is
produced via reprocessing when a user takes a picture.  For such a use case, the
high-resolution buffers must not have edge enhancement applied to maximize efficiency of
preview and to avoid double-applying enhancement when reprocessed, while low-resolution
buffers (used for recording or preview, generally) need edge enhancement applied for
reasonable preview quality.


This mode is guaranteed to be supported by devices that support either the YUV_REPROCESSING or PRIVATE_REPROCESSING capabilities (android.request.availableCapabilities lists either of those capabilities) and it will be the default mode for CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.


See Also:
/**
     * <p>Edge enhancement is applied at different
     * levels for different output streams, based on resolution. Streams at maximum recording
     * resolution (see {@link android.hardware.camera2.CameraDevice#createCaptureSession })
     * or below have edge enhancement applied, while higher-resolution streams have no edge
     * enhancement applied. The level of edge enhancement for low-resolution streams is tuned
     * so that frame rate is not impacted, and the quality is equal to or better than FAST
     * (since it is only applied to lower-resolution outputs, quality may improve from FAST).</p>
     * <p>This mode is intended to be used by applications operating in a zero-shutter-lag mode
     * with YUV or PRIVATE reprocessing, where the application continuously captures
     * high-resolution intermediate buffers into a circular buffer, from which a final image is
     * produced via reprocessing when a user takes a picture.  For such a use case, the
     * high-resolution buffers must not have edge enhancement applied to maximize efficiency of
     * preview and to avoid double-applying enhancement when reprocessed, while low-resolution
     * buffers (used for recording or preview, generally) need edge enhancement applied for
     * reasonable preview quality.</p>
     * <p>This mode is guaranteed to be supported by devices that support either the
     * YUV_REPROCESSING or PRIVATE_REPROCESSING capabilities
     * ({@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} lists either of those capabilities) and it will
     * be the default mode for CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p>
     *
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     * @see CaptureRequest#EDGE_MODE
     */
    public static final int EDGE_MODE_ZERO_SHUTTER_LAG = 3;

    //
    // Enumeration values for CaptureRequest#FLASH_MODE
    //

    
Do not fire the flash for this capture.


See Also:
  • FLASH_MODE.FLASH_MODE
/**
     * <p>Do not fire the flash for this capture.</p>
     * @see CaptureRequest#FLASH_MODE
     */
    public static final int FLASH_MODE_OFF = 0;

    
If the flash is available and charged, fire flash
for this capture.


See Also:
  • FLASH_MODE.FLASH_MODE
/**
     * <p>If the flash is available and charged, fire flash
     * for this capture.</p>
     * @see CaptureRequest#FLASH_MODE
     */
    public static final int FLASH_MODE_SINGLE = 1;

    
Transition flash to continuously on.


See Also:
  • FLASH_MODE.FLASH_MODE
/**
     * <p>Transition flash to continuously on.</p>
     * @see CaptureRequest#FLASH_MODE
     */
    public static final int FLASH_MODE_TORCH = 2;

    //
    // Enumeration values for CaptureRequest#HOT_PIXEL_MODE
    //

    
No hot pixel correction is applied.


The frame rate must not be reduced relative to sensor raw output
for this option.


The hotpixel map may be returned in android.statistics.hotPixelMap.


See Also:
/**
     * <p>No hot pixel correction is applied.</p>
     * <p>The frame rate must not be reduced relative to sensor raw output
     * for this option.</p>
     * <p>The hotpixel map may be returned in {@link CaptureResult#STATISTICS_HOT_PIXEL_MAP android.statistics.hotPixelMap}.</p>
     *
     * @see CaptureResult#STATISTICS_HOT_PIXEL_MAP
     * @see CaptureRequest#HOT_PIXEL_MODE
     */
    public static final int HOT_PIXEL_MODE_OFF = 0;

    
Hot pixel correction is applied, without reducing frame
rate relative to sensor raw output.


The hotpixel map may be returned in android.statistics.hotPixelMap.


See Also:
/**
     * <p>Hot pixel correction is applied, without reducing frame
     * rate relative to sensor raw output.</p>
     * <p>The hotpixel map may be returned in {@link CaptureResult#STATISTICS_HOT_PIXEL_MAP android.statistics.hotPixelMap}.</p>
     *
     * @see CaptureResult#STATISTICS_HOT_PIXEL_MAP
     * @see CaptureRequest#HOT_PIXEL_MODE
     */
    public static final int HOT_PIXEL_MODE_FAST = 1;

    
High-quality hot pixel correction is applied, at a cost
of possibly reduced frame rate relative to sensor raw output.


The hotpixel map may be returned in android.statistics.hotPixelMap.


See Also:
/**
     * <p>High-quality hot pixel correction is applied, at a cost
     * of possibly reduced frame rate relative to sensor raw output.</p>
     * <p>The hotpixel map may be returned in {@link CaptureResult#STATISTICS_HOT_PIXEL_MAP android.statistics.hotPixelMap}.</p>
     *
     * @see CaptureResult#STATISTICS_HOT_PIXEL_MAP
     * @see CaptureRequest#HOT_PIXEL_MODE
     */
    public static final int HOT_PIXEL_MODE_HIGH_QUALITY = 2;

    //
    // Enumeration values for CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE
    //

    
Optical stabilization is unavailable.


See Also:
  • LENS_OPTICAL_STABILIZATION_MODE.LENS_OPTICAL_STABILIZATION_MODE
/**
     * <p>Optical stabilization is unavailable.</p>
     * @see CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE
     */
    public static final int LENS_OPTICAL_STABILIZATION_MODE_OFF = 0;

    
Optical stabilization is enabled.


See Also:
  • LENS_OPTICAL_STABILIZATION_MODE.LENS_OPTICAL_STABILIZATION_MODE
/**
     * <p>Optical stabilization is enabled.</p>
     * @see CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE
     */
    public static final int LENS_OPTICAL_STABILIZATION_MODE_ON = 1;

    //
    // Enumeration values for CaptureRequest#NOISE_REDUCTION_MODE
    //

    
No noise reduction is applied.


See Also:
  • NOISE_REDUCTION_MODE.NOISE_REDUCTION_MODE
/**
     * <p>No noise reduction is applied.</p>
     * @see CaptureRequest#NOISE_REDUCTION_MODE
     */
    public static final int NOISE_REDUCTION_MODE_OFF = 0;

    
Noise reduction is applied without reducing frame rate relative to sensor
output. It may be the same as OFF if noise reduction will reduce frame rate
relative to sensor.


See Also:
  • NOISE_REDUCTION_MODE.NOISE_REDUCTION_MODE
/**
     * <p>Noise reduction is applied without reducing frame rate relative to sensor
     * output. It may be the same as OFF if noise reduction will reduce frame rate
     * relative to sensor.</p>
     * @see CaptureRequest#NOISE_REDUCTION_MODE
     */
    public static final int NOISE_REDUCTION_MODE_FAST = 1;

    
High-quality noise reduction is applied, at the cost of possibly reduced frame
rate relative to sensor output.


See Also:
  • NOISE_REDUCTION_MODE.NOISE_REDUCTION_MODE
/**
     * <p>High-quality noise reduction is applied, at the cost of possibly reduced frame
     * rate relative to sensor output.</p>
     * @see CaptureRequest#NOISE_REDUCTION_MODE
     */
    public static final int NOISE_REDUCTION_MODE_HIGH_QUALITY = 2;

    
MINIMAL noise reduction is applied without reducing frame rate relative to
sensor output. 


See Also:
  • NOISE_REDUCTION_MODE.NOISE_REDUCTION_MODE
/**
     * <p>MINIMAL noise reduction is applied without reducing frame rate relative to
     * sensor output. </p>
     * @see CaptureRequest#NOISE_REDUCTION_MODE
     */
    public static final int NOISE_REDUCTION_MODE_MINIMAL = 3;

    
Noise reduction is applied at different levels for different output streams, based on resolution. Streams at maximum recording resolution (see CameraDevice.createCaptureSession) or below have noise reduction applied, while higher-resolution streams have MINIMAL (if supported) or no noise reduction applied (if MINIMAL is not supported.) The degree of noise reduction for low-resolution streams is tuned so that frame rate is not impacted, and the quality is equal to or better than FAST (since it is only applied to lower-resolution outputs, quality may improve from FAST).


This mode is intended to be used by applications operating in a zero-shutter-lag mode
with YUV or PRIVATE reprocessing, where the application continuously captures
high-resolution intermediate buffers into a circular buffer, from which a final image is
produced via reprocessing when a user takes a picture.  For such a use case, the
high-resolution buffers must not have noise reduction applied to maximize efficiency of
preview and to avoid over-applying noise filtering when reprocessing, while
low-resolution buffers (used for recording or preview, generally) need noise reduction
applied for reasonable preview quality.


This mode is guaranteed to be supported by devices that support either the YUV_REPROCESSING or PRIVATE_REPROCESSING capabilities (android.request.availableCapabilities lists either of those capabilities) and it will be the default mode for CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.


See Also:
/**
     * <p>Noise reduction is applied at different levels for different output streams,
     * based on resolution. Streams at maximum recording resolution (see {@link android.hardware.camera2.CameraDevice#createCaptureSession })
     * or below have noise reduction applied, while higher-resolution streams have MINIMAL (if
     * supported) or no noise reduction applied (if MINIMAL is not supported.) The degree of
     * noise reduction for low-resolution streams is tuned so that frame rate is not impacted,
     * and the quality is equal to or better than FAST (since it is only applied to
     * lower-resolution outputs, quality may improve from FAST).</p>
     * <p>This mode is intended to be used by applications operating in a zero-shutter-lag mode
     * with YUV or PRIVATE reprocessing, where the application continuously captures
     * high-resolution intermediate buffers into a circular buffer, from which a final image is
     * produced via reprocessing when a user takes a picture.  For such a use case, the
     * high-resolution buffers must not have noise reduction applied to maximize efficiency of
     * preview and to avoid over-applying noise filtering when reprocessing, while
     * low-resolution buffers (used for recording or preview, generally) need noise reduction
     * applied for reasonable preview quality.</p>
     * <p>This mode is guaranteed to be supported by devices that support either the
     * YUV_REPROCESSING or PRIVATE_REPROCESSING capabilities
     * ({@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} lists either of those capabilities) and it will
     * be the default mode for CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p>
     *
     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
     * @see CaptureRequest#NOISE_REDUCTION_MODE
     */
    public static final int NOISE_REDUCTION_MODE_ZERO_SHUTTER_LAG = 4;

    //
    // Enumeration values for CaptureRequest#SENSOR_TEST_PATTERN_MODE
    //

    
No test pattern mode is used, and the camera
device returns captures from the image sensor.


This is the default if the key is not set.


See Also:
  • SENSOR_TEST_PATTERN_MODE.SENSOR_TEST_PATTERN_MODE
/**
     * <p>No test pattern mode is used, and the camera
     * device returns captures from the image sensor.</p>
     * <p>This is the default if the key is not set.</p>
     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
     */
    public static final int SENSOR_TEST_PATTERN_MODE_OFF = 0;

    
Each pixel in [R, G_even, G_odd, B] is replaced by its respective color channel provided in android.sensor.testPatternData.


For example:


android.testPatternData = [0, 0xFFFFFFFF, 0xFFFFFFFF, 0]



All green pixels are 100% green. All red/blue pixels are black.


android.testPatternData = [0xFFFFFFFF, 0, 0xFFFFFFFF, 0]



All red pixels are 100% red. Only the odd green pixels
are 100% green. All blue pixels are 100% black.


See Also:
/**
     * <p>Each pixel in <code>[R, G_even, G_odd, B]</code> is replaced by its
     * respective color channel provided in
     * {@link CaptureRequest#SENSOR_TEST_PATTERN_DATA android.sensor.testPatternData}.</p>
     * <p>For example:</p>
     * <pre><code>android.testPatternData = [0, 0xFFFFFFFF, 0xFFFFFFFF, 0]
     * </code></pre>
     * <p>All green pixels are 100% green. All red/blue pixels are black.</p>
     * <pre><code>android.testPatternData = [0xFFFFFFFF, 0, 0xFFFFFFFF, 0]
     * </code></pre>
     * <p>All red pixels are 100% red. Only the odd green pixels
     * are 100% green. All blue pixels are 100% black.</p>
     *
     * @see CaptureRequest#SENSOR_TEST_PATTERN_DATA
     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
     */
    public static final int SENSOR_TEST_PATTERN_MODE_SOLID_COLOR = 1;

    
All pixel data is replaced with an 8-bar color pattern.


The vertical bars (left-to-right) are as follows:


    

  • 100% white
    • 

  • yellow
    • 

  • cyan
    • 

  • green
    • 

  • magenta
    • 

  • red
    • 

  • blue
    • 

  • black
    • 



In general the image would look like the following:


W Y C G M R B K
W Y C G M R B K
W Y C G M R B K
W Y C G M R B K
W Y C G M R B K
. . . . . . . .
. . . . . . . .
. . . . . . . .
(B = Blue, K = Black)



Each bar should take up 1/8 of the sensor pixel array width.
When this is not possible, the bar size should be rounded
down to the nearest integer and the pattern can repeat
on the right side.


Each bar's height must always take up the full sensor
pixel array height.


Each pixel in this test pattern must be set to either
0% intensity or 100% intensity.


See Also:
  • SENSOR_TEST_PATTERN_MODE.SENSOR_TEST_PATTERN_MODE
/**
     * <p>All pixel data is replaced with an 8-bar color pattern.</p>
     * <p>The vertical bars (left-to-right) are as follows:</p>
     * <ul>
     * <li>100% white</li>
     * <li>yellow</li>
     * <li>cyan</li>
     * <li>green</li>
     * <li>magenta</li>
     * <li>red</li>
     * <li>blue</li>
     * <li>black</li>
     * </ul>
     * <p>In general the image would look like the following:</p>
     * <pre><code>W Y C G M R B K
     * W Y C G M R B K
     * W Y C G M R B K
     * W Y C G M R B K
     * W Y C G M R B K
     * . . . . . . . .
     * . . . . . . . .
     * . . . . . . . .
     *
     * (B = Blue, K = Black)
     * </code></pre>
     * <p>Each bar should take up 1/8 of the sensor pixel array width.
     * When this is not possible, the bar size should be rounded
     * down to the nearest integer and the pattern can repeat
     * on the right side.</p>
     * <p>Each bar's height must always take up the full sensor
     * pixel array height.</p>
     * <p>Each pixel in this test pattern must be set to either
     * 0% intensity or 100% intensity.</p>
     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
     */
    public static final int SENSOR_TEST_PATTERN_MODE_COLOR_BARS = 2;

    
The test pattern is similar to COLOR_BARS, except that
each bar should start at its specified color at the top,
and fade to gray at the bottom.


Furthermore each bar is further subdivided into a left and
right half. The left half should have a smooth gradient,
and the right half should have a quantized gradient.


In particular, the right half's should consist of blocks of the
same color for 1/16th active sensor pixel array width.


The least significant bits in the quantized gradient should
be copied from the most significant bits of the smooth gradient.


The height of each bar should always be a multiple of 128.
When this is not the case, the pattern should repeat at the bottom
of the image.


See Also:
  • SENSOR_TEST_PATTERN_MODE.SENSOR_TEST_PATTERN_MODE
/**
     * <p>The test pattern is similar to COLOR_BARS, except that
     * each bar should start at its specified color at the top,
     * and fade to gray at the bottom.</p>
     * <p>Furthermore each bar is further subdivided into a left and
     * right half. The left half should have a smooth gradient,
     * and the right half should have a quantized gradient.</p>
     * <p>In particular, the right half's should consist of blocks of the
     * same color for 1/16th active sensor pixel array width.</p>
     * <p>The least significant bits in the quantized gradient should
     * be copied from the most significant bits of the smooth gradient.</p>
     * <p>The height of each bar should always be a multiple of 128.
     * When this is not the case, the pattern should repeat at the bottom
     * of the image.</p>
     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
     */
    public static final int SENSOR_TEST_PATTERN_MODE_COLOR_BARS_FADE_TO_GRAY = 3;

    
All pixel data is replaced by a pseudo-random sequence
generated from a PN9 512-bit sequence (typically implemented
in hardware with a linear feedback shift register).


The generator should be reset at the beginning of each frame,
and thus each subsequent raw frame with this test pattern should
be exactly the same as the last.


See Also:
  • SENSOR_TEST_PATTERN_MODE.SENSOR_TEST_PATTERN_MODE
/**
     * <p>All pixel data is replaced by a pseudo-random sequence
     * generated from a PN9 512-bit sequence (typically implemented
     * in hardware with a linear feedback shift register).</p>
     * <p>The generator should be reset at the beginning of each frame,
     * and thus each subsequent raw frame with this test pattern should
     * be exactly the same as the last.</p>
     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
     */
    public static final int SENSOR_TEST_PATTERN_MODE_PN9 = 4;

    
The first custom test pattern. All custom patterns that are
available only on this camera device are at least this numeric
value.


All of the custom test patterns will be static
(that is the raw image must not vary from frame to frame).


See Also:
  • SENSOR_TEST_PATTERN_MODE.SENSOR_TEST_PATTERN_MODE
/**
     * <p>The first custom test pattern. All custom patterns that are
     * available only on this camera device are at least this numeric
     * value.</p>
     * <p>All of the custom test patterns will be static
     * (that is the raw image must not vary from frame to frame).</p>
     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
     */
    public static final int SENSOR_TEST_PATTERN_MODE_CUSTOM1 = 256;

    //
    // Enumeration values for CaptureRequest#SHADING_MODE
    //

    
No lens shading correction is applied.


See Also:
  • SHADING_MODE.SHADING_MODE
/**
     * <p>No lens shading correction is applied.</p>
     * @see CaptureRequest#SHADING_MODE
     */
    public static final int SHADING_MODE_OFF = 0;

    
Apply lens shading corrections, without slowing
frame rate relative to sensor raw output


See Also:
  • SHADING_MODE.SHADING_MODE
/**
     * <p>Apply lens shading corrections, without slowing
     * frame rate relative to sensor raw output</p>
     * @see CaptureRequest#SHADING_MODE
     */
    public static final int SHADING_MODE_FAST = 1;

    
Apply high-quality lens shading correction, at the
cost of possibly reduced frame rate.


See Also:
  • SHADING_MODE.SHADING_MODE
/**
     * <p>Apply high-quality lens shading correction, at the
     * cost of possibly reduced frame rate.</p>
     * @see CaptureRequest#SHADING_MODE
     */
    public static final int SHADING_MODE_HIGH_QUALITY = 2;

    //
    // Enumeration values for CaptureRequest#STATISTICS_FACE_DETECT_MODE
    //

    
Do not include face detection statistics in capture
results.


See Also:
  • STATISTICS_FACE_DETECT_MODE.STATISTICS_FACE_DETECT_MODE
/**
     * <p>Do not include face detection statistics in capture
     * results.</p>
     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
     */
    public static final int STATISTICS_FACE_DETECT_MODE_OFF = 0;

    
Return face rectangle and confidence values only.


See Also:
  • STATISTICS_FACE_DETECT_MODE.STATISTICS_FACE_DETECT_MODE
/**
     * <p>Return face rectangle and confidence values only.</p>
     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
     */
    public static final int STATISTICS_FACE_DETECT_MODE_SIMPLE = 1;

    
Return all face
metadata.


In this mode, face rectangles, scores, landmarks, and face IDs are all valid.


See Also:
  • STATISTICS_FACE_DETECT_MODE.STATISTICS_FACE_DETECT_MODE
/**
     * <p>Return all face
     * metadata.</p>
     * <p>In this mode, face rectangles, scores, landmarks, and face IDs are all valid.</p>
     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
     */
    public static final int STATISTICS_FACE_DETECT_MODE_FULL = 2;

    //
    // Enumeration values for CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE
    //

    
Do not include a lens shading map in the capture result.


See Also:
  • STATISTICS_LENS_SHADING_MAP_MODE.STATISTICS_LENS_SHADING_MAP_MODE
/**
     * <p>Do not include a lens shading map in the capture result.</p>
     * @see CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE
     */
    public static final int STATISTICS_LENS_SHADING_MAP_MODE_OFF = 0;

    
Include a lens shading map in the capture result.


See Also:
  • STATISTICS_LENS_SHADING_MAP_MODE.STATISTICS_LENS_SHADING_MAP_MODE
/**
     * <p>Include a lens shading map in the capture result.</p>
     * @see CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE
     */
    public static final int STATISTICS_LENS_SHADING_MAP_MODE_ON = 1;

    //
    // Enumeration values for CaptureRequest#STATISTICS_OIS_DATA_MODE
    //

    
Do not include OIS data in the capture result.


See Also:
  • STATISTICS_OIS_DATA_MODE.STATISTICS_OIS_DATA_MODE
/**
     * <p>Do not include OIS data in the capture result.</p>
     * @see CaptureRequest#STATISTICS_OIS_DATA_MODE
     */
    public static final int STATISTICS_OIS_DATA_MODE_OFF = 0;

    
Include OIS data in the capture result.


android.statistics.oisSamples provides OIS sample data in the output result metadata.


See Also:
/**
     * <p>Include OIS data in the capture result.</p>
     * <p>{@link CaptureResult#STATISTICS_OIS_SAMPLES android.statistics.oisSamples} provides OIS sample data in the
     * output result metadata.</p>
     *
     * @see CaptureResult#STATISTICS_OIS_SAMPLES
     * @see CaptureRequest#STATISTICS_OIS_DATA_MODE
     */
    public static final int STATISTICS_OIS_DATA_MODE_ON = 1;

    //
    // Enumeration values for CaptureRequest#TONEMAP_MODE
    //

    
Use the tone mapping curve specified in the android.tonemap.curve* entries.


All color enhancement and tonemapping must be disabled, except for applying the tonemapping curve specified by android.tonemap.curve.


Must not slow down frame rate relative to raw
sensor output.


See Also:
/**
     * <p>Use the tone mapping curve specified in
     * the {@link CaptureRequest#TONEMAP_CURVE android.tonemap.curve}* entries.</p>
     * <p>All color enhancement and tonemapping must be disabled, except
     * for applying the tonemapping curve specified by
     * {@link CaptureRequest#TONEMAP_CURVE android.tonemap.curve}.</p>
     * <p>Must not slow down frame rate relative to raw
     * sensor output.</p>
     *
     * @see CaptureRequest#TONEMAP_CURVE
     * @see CaptureRequest#TONEMAP_MODE
     */
    public static final int TONEMAP_MODE_CONTRAST_CURVE = 0;

    
Advanced gamma mapping and color enhancement may be applied, without
reducing frame rate compared to raw sensor output.


See Also:
  • TONEMAP_MODE.TONEMAP_MODE
/**
     * <p>Advanced gamma mapping and color enhancement may be applied, without
     * reducing frame rate compared to raw sensor output.</p>
     * @see CaptureRequest#TONEMAP_MODE
     */
    public static final int TONEMAP_MODE_FAST = 1;

    
High-quality gamma mapping and color enhancement will be applied, at
the cost of possibly reduced frame rate compared to raw sensor output.


See Also:
  • TONEMAP_MODE.TONEMAP_MODE
/**
     * <p>High-quality gamma mapping and color enhancement will be applied, at
     * the cost of possibly reduced frame rate compared to raw sensor output.</p>
     * @see CaptureRequest#TONEMAP_MODE
     */
    public static final int TONEMAP_MODE_HIGH_QUALITY = 2;

    
Use the gamma value specified in android.tonemap.gamma to peform tonemapping.


All color enhancement and tonemapping must be disabled, except for applying the tonemapping curve specified by android.tonemap.gamma.


Must not slow down frame rate relative to raw sensor output.


See Also:
/**
     * <p>Use the gamma value specified in {@link CaptureRequest#TONEMAP_GAMMA android.tonemap.gamma} to peform
     * tonemapping.</p>
     * <p>All color enhancement and tonemapping must be disabled, except
     * for applying the tonemapping curve specified by {@link CaptureRequest#TONEMAP_GAMMA android.tonemap.gamma}.</p>
     * <p>Must not slow down frame rate relative to raw sensor output.</p>
     *
     * @see CaptureRequest#TONEMAP_GAMMA
     * @see CaptureRequest#TONEMAP_MODE
     */
    public static final int TONEMAP_MODE_GAMMA_VALUE = 3;

    
Use the preset tonemapping curve specified in android.tonemap.presetCurve to peform tonemapping.


All color enhancement and tonemapping must be disabled, except for applying the tonemapping curve specified by android.tonemap.presetCurve.


Must not slow down frame rate relative to raw sensor output.


See Also:
/**
     * <p>Use the preset tonemapping curve specified in
     * {@link CaptureRequest#TONEMAP_PRESET_CURVE android.tonemap.presetCurve} to peform tonemapping.</p>
     * <p>All color enhancement and tonemapping must be disabled, except
     * for applying the tonemapping curve specified by
     * {@link CaptureRequest#TONEMAP_PRESET_CURVE android.tonemap.presetCurve}.</p>
     * <p>Must not slow down frame rate relative to raw sensor output.</p>
     *
     * @see CaptureRequest#TONEMAP_PRESET_CURVE
     * @see CaptureRequest#TONEMAP_MODE
     */
    public static final int TONEMAP_MODE_PRESET_CURVE = 4;

    //
    // Enumeration values for CaptureRequest#TONEMAP_PRESET_CURVE
    //

    
Tonemapping curve is defined by sRGB


See Also:
  • TONEMAP_PRESET_CURVE.TONEMAP_PRESET_CURVE
/**
     * <p>Tonemapping curve is defined by sRGB</p>
     * @see CaptureRequest#TONEMAP_PRESET_CURVE
     */
    public static final int TONEMAP_PRESET_CURVE_SRGB = 0;

    
Tonemapping curve is defined by ITU-R BT.709


See Also:
  • TONEMAP_PRESET_CURVE.TONEMAP_PRESET_CURVE
/**
     * <p>Tonemapping curve is defined by ITU-R BT.709</p>
     * @see CaptureRequest#TONEMAP_PRESET_CURVE
     */
    public static final int TONEMAP_PRESET_CURVE_REC709 = 1;

    //
    // Enumeration values for CaptureRequest#DISTORTION_CORRECTION_MODE
    //

    
No distortion correction is applied.


See Also:
  • DISTORTION_CORRECTION_MODE.DISTORTION_CORRECTION_MODE
/**
     * <p>No distortion correction is applied.</p>
     * @see CaptureRequest#DISTORTION_CORRECTION_MODE
     */
    public static final int DISTORTION_CORRECTION_MODE_OFF = 0;

    
Lens distortion correction is applied without reducing frame rate
relative to sensor output. It may be the same as OFF if distortion correction would
reduce frame rate relative to sensor.


See Also:
  • DISTORTION_CORRECTION_MODE.DISTORTION_CORRECTION_MODE
/**
     * <p>Lens distortion correction is applied without reducing frame rate
     * relative to sensor output. It may be the same as OFF if distortion correction would
     * reduce frame rate relative to sensor.</p>
     * @see CaptureRequest#DISTORTION_CORRECTION_MODE
     */
    public static final int DISTORTION_CORRECTION_MODE_FAST = 1;

    
High-quality distortion correction is applied, at the cost of
possibly reduced frame rate relative to sensor output.


See Also:
  • DISTORTION_CORRECTION_MODE.DISTORTION_CORRECTION_MODE
/**
     * <p>High-quality distortion correction is applied, at the cost of
     * possibly reduced frame rate relative to sensor output.</p>
     * @see CaptureRequest#DISTORTION_CORRECTION_MODE
     */
    public static final int DISTORTION_CORRECTION_MODE_HIGH_QUALITY = 2;

    //
    // Enumeration values for CaptureResult#CONTROL_AE_STATE
    //

    
AE is off or recently reset.


When a camera device is opened, it starts in
this state. This is a transient state, the camera device may skip reporting
this state in capture result.


See Also:
  • CONTROL_AE_STATE.CONTROL_AE_STATE
/**
     * <p>AE is off or recently reset.</p>
     * <p>When a camera device is opened, it starts in
     * this state. This is a transient state, the camera device may skip reporting
     * this state in capture result.</p>
     * @see CaptureResult#CONTROL_AE_STATE
     */
    public static final int CONTROL_AE_STATE_INACTIVE = 0;

    
AE doesn't yet have a good set of control values
for the current scene.


This is a transient state, the camera device may skip
reporting this state in capture result.


See Also:
  • CONTROL_AE_STATE.CONTROL_AE_STATE
/**
     * <p>AE doesn't yet have a good set of control values
     * for the current scene.</p>
     * <p>This is a transient state, the camera device may skip
     * reporting this state in capture result.</p>
     * @see CaptureResult#CONTROL_AE_STATE
     */
    public static final int CONTROL_AE_STATE_SEARCHING = 1;

    
AE has a good set of control values for the
current scene.


See Also:
  • CONTROL_AE_STATE.CONTROL_AE_STATE
/**
     * <p>AE has a good set of control values for the
     * current scene.</p>
     * @see CaptureResult#CONTROL_AE_STATE
     */
    public static final int CONTROL_AE_STATE_CONVERGED = 2;

    
AE has been locked.


See Also:
  • CONTROL_AE_STATE.CONTROL_AE_STATE
/**
     * <p>AE has been locked.</p>
     * @see CaptureResult#CONTROL_AE_STATE
     */
    public static final int CONTROL_AE_STATE_LOCKED = 3;

    
AE has a good set of control values, but flash
needs to be fired for good quality still
capture.


See Also:
  • CONTROL_AE_STATE.CONTROL_AE_STATE
/**
     * <p>AE has a good set of control values, but flash
     * needs to be fired for good quality still
     * capture.</p>
     * @see CaptureResult#CONTROL_AE_STATE
     */
    public static final int CONTROL_AE_STATE_FLASH_REQUIRED = 4;

    
AE has been asked to do a precapture sequence
and is currently executing it.


Precapture can be triggered through setting android.control.aePrecaptureTrigger to START. Currently active and completed (if it causes camera device internal AE lock) precapture metering sequence can be canceled through setting android.control.aePrecaptureTrigger to CANCEL.


Once PRECAPTURE completes, AE will transition to CONVERGED
or FLASH_REQUIRED as appropriate. This is a transient
state, the camera device may skip reporting this state in
capture result.


See Also:
/**
     * <p>AE has been asked to do a precapture sequence
     * and is currently executing it.</p>
     * <p>Precapture can be triggered through setting
     * {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} to START. Currently
     * active and completed (if it causes camera device internal AE lock) precapture
     * metering sequence can be canceled through setting
     * {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} to CANCEL.</p>
     * <p>Once PRECAPTURE completes, AE will transition to CONVERGED
     * or FLASH_REQUIRED as appropriate. This is a transient
     * state, the camera device may skip reporting this state in
     * capture result.</p>
     *
     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
     * @see CaptureResult#CONTROL_AE_STATE
     */
    public static final int CONTROL_AE_STATE_PRECAPTURE = 5;

    //
    // Enumeration values for CaptureResult#CONTROL_AF_STATE
    //

    
AF is off or has not yet tried to scan/been asked
to scan.


When a camera device is opened, it starts in this
state. This is a transient state, the camera device may
skip reporting this state in capture
result.


See Also:
  • CONTROL_AF_STATE.CONTROL_AF_STATE
/**
     * <p>AF is off or has not yet tried to scan/been asked
     * to scan.</p>
     * <p>When a camera device is opened, it starts in this
     * state. This is a transient state, the camera device may
     * skip reporting this state in capture
     * result.</p>
     * @see CaptureResult#CONTROL_AF_STATE
     */
    public static final int CONTROL_AF_STATE_INACTIVE = 0;

    
AF is currently performing an AF scan initiated the
camera device in a continuous autofocus mode.


Only used by CONTINUOUS_* AF modes. This is a transient
state, the camera device may skip reporting this state in
capture result.


See Also:
  • CONTROL_AF_STATE.CONTROL_AF_STATE
/**
     * <p>AF is currently performing an AF scan initiated the
     * camera device in a continuous autofocus mode.</p>
     * <p>Only used by CONTINUOUS_* AF modes. This is a transient
     * state, the camera device may skip reporting this state in
     * capture result.</p>
     * @see CaptureResult#CONTROL_AF_STATE
     */
    public static final int CONTROL_AF_STATE_PASSIVE_SCAN = 1;

    
AF currently believes it is in focus, but may
restart scanning at any time.


Only used by CONTINUOUS_* AF modes. This is a transient
state, the camera device may skip reporting this state in
capture result.


See Also:
  • CONTROL_AF_STATE.CONTROL_AF_STATE
/**
     * <p>AF currently believes it is in focus, but may
     * restart scanning at any time.</p>
     * <p>Only used by CONTINUOUS_* AF modes. This is a transient
     * state, the camera device may skip reporting this state in
     * capture result.</p>
     * @see CaptureResult#CONTROL_AF_STATE
     */
    public static final int CONTROL_AF_STATE_PASSIVE_FOCUSED = 2;

    
AF is performing an AF scan because it was
triggered by AF trigger.


Only used by AUTO or MACRO AF modes. This is a transient
state, the camera device may skip reporting this state in
capture result.


See Also:
  • CONTROL_AF_STATE.CONTROL_AF_STATE
/**
     * <p>AF is performing an AF scan because it was
     * triggered by AF trigger.</p>
     * <p>Only used by AUTO or MACRO AF modes. This is a transient
     * state, the camera device may skip reporting this state in
     * capture result.</p>
     * @see CaptureResult#CONTROL_AF_STATE
     */
    public static final int CONTROL_AF_STATE_ACTIVE_SCAN = 3;

    
AF believes it is focused correctly and has locked
focus.


This state is reached only after an explicit START AF trigger has been sent (android.control.afTrigger), when good focus has been obtained.


The lens will remain stationary until the AF mode (android.control.afMode) is changed or a new AF trigger is sent to the camera device (android.control.afTrigger).


See Also:
/**
     * <p>AF believes it is focused correctly and has locked
     * focus.</p>
     * <p>This state is reached only after an explicit START AF trigger has been
     * sent ({@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}), when good focus has been obtained.</p>
     * <p>The lens will remain stationary until the AF mode ({@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}) is changed or
     * a new AF trigger is sent to the camera device ({@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}).</p>
     *
     * @see CaptureRequest#CONTROL_AF_MODE
     * @see CaptureRequest#CONTROL_AF_TRIGGER
     * @see CaptureResult#CONTROL_AF_STATE
     */
    public static final int CONTROL_AF_STATE_FOCUSED_LOCKED = 4;

    
AF has failed to focus successfully and has locked
focus.


This state is reached only after an explicit START AF trigger has been sent (android.control.afTrigger), when good focus cannot be obtained.


The lens will remain stationary until the AF mode (android.control.afMode) is changed or a new AF trigger is sent to the camera device (android.control.afTrigger).


See Also:
/**
     * <p>AF has failed to focus successfully and has locked
     * focus.</p>
     * <p>This state is reached only after an explicit START AF trigger has been
     * sent ({@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}), when good focus cannot be obtained.</p>
     * <p>The lens will remain stationary until the AF mode ({@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}) is changed or
     * a new AF trigger is sent to the camera device ({@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}).</p>
     *
     * @see CaptureRequest#CONTROL_AF_MODE
     * @see CaptureRequest#CONTROL_AF_TRIGGER
     * @see CaptureResult#CONTROL_AF_STATE
     */
    public static final int CONTROL_AF_STATE_NOT_FOCUSED_LOCKED = 5;

    
AF finished a passive scan without finding focus,
and may restart scanning at any time.


Only used by CONTINUOUS_* AF modes. This is a transient state, the camera
device may skip reporting this state in capture result.


LEGACY camera devices do not support this state. When a passive
scan has finished, it will always go to PASSIVE_FOCUSED.


See Also:
  • CONTROL_AF_STATE.CONTROL_AF_STATE
/**
     * <p>AF finished a passive scan without finding focus,
     * and may restart scanning at any time.</p>
     * <p>Only used by CONTINUOUS_* AF modes. This is a transient state, the camera
     * device may skip reporting this state in capture result.</p>
     * <p>LEGACY camera devices do not support this state. When a passive
     * scan has finished, it will always go to PASSIVE_FOCUSED.</p>
     * @see CaptureResult#CONTROL_AF_STATE
     */
    public static final int CONTROL_AF_STATE_PASSIVE_UNFOCUSED = 6;

    //
    // Enumeration values for CaptureResult#CONTROL_AWB_STATE
    //

    
AWB is not in auto mode, or has not yet started metering.


When a camera device is opened, it starts in this
state. This is a transient state, the camera device may
skip reporting this state in capture
result.


See Also:
  • CONTROL_AWB_STATE.CONTROL_AWB_STATE
/**
     * <p>AWB is not in auto mode, or has not yet started metering.</p>
     * <p>When a camera device is opened, it starts in this
     * state. This is a transient state, the camera device may
     * skip reporting this state in capture
     * result.</p>
     * @see CaptureResult#CONTROL_AWB_STATE
     */
    public static final int CONTROL_AWB_STATE_INACTIVE = 0;

    
AWB doesn't yet have a good set of control
values for the current scene.


This is a transient state, the camera device
may skip reporting this state in capture result.


See Also:
  • CONTROL_AWB_STATE.CONTROL_AWB_STATE
/**
     * <p>AWB doesn't yet have a good set of control
     * values for the current scene.</p>
     * <p>This is a transient state, the camera device
     * may skip reporting this state in capture result.</p>
     * @see CaptureResult#CONTROL_AWB_STATE
     */
    public static final int CONTROL_AWB_STATE_SEARCHING = 1;

    
AWB has a good set of control values for the
current scene.


See Also:
  • CONTROL_AWB_STATE.CONTROL_AWB_STATE
/**
     * <p>AWB has a good set of control values for the
     * current scene.</p>
     * @see CaptureResult#CONTROL_AWB_STATE
     */
    public static final int CONTROL_AWB_STATE_CONVERGED = 2;

    
AWB has been locked.


See Also:
  • CONTROL_AWB_STATE.CONTROL_AWB_STATE
/**
     * <p>AWB has been locked.</p>
     * @see CaptureResult#CONTROL_AWB_STATE
     */
    public static final int CONTROL_AWB_STATE_LOCKED = 3;

    //
    // Enumeration values for CaptureResult#CONTROL_AF_SCENE_CHANGE
    //

    
Scene change is not detected within the AF region(s).


See Also:
  • CONTROL_AF_SCENE_CHANGE.CONTROL_AF_SCENE_CHANGE
/**
     * <p>Scene change is not detected within the AF region(s).</p>
     * @see CaptureResult#CONTROL_AF_SCENE_CHANGE
     */
    public static final int CONTROL_AF_SCENE_CHANGE_NOT_DETECTED = 0;

    
Scene change is detected within the AF region(s).


See Also:
  • CONTROL_AF_SCENE_CHANGE.CONTROL_AF_SCENE_CHANGE
/**
     * <p>Scene change is detected within the AF region(s).</p>
     * @see CaptureResult#CONTROL_AF_SCENE_CHANGE
     */
    public static final int CONTROL_AF_SCENE_CHANGE_DETECTED = 1;

    //
    // Enumeration values for CaptureResult#FLASH_STATE
    //

    
No flash on camera.


See Also:
  • FLASH_STATE.FLASH_STATE
/**
     * <p>No flash on camera.</p>
     * @see CaptureResult#FLASH_STATE
     */
    public static final int FLASH_STATE_UNAVAILABLE = 0;

    
Flash is charging and cannot be fired.


See Also:
  • FLASH_STATE.FLASH_STATE
/**
     * <p>Flash is charging and cannot be fired.</p>
     * @see CaptureResult#FLASH_STATE
     */
    public static final int FLASH_STATE_CHARGING = 1;

    
Flash is ready to fire.


See Also:
  • FLASH_STATE.FLASH_STATE
/**
     * <p>Flash is ready to fire.</p>
     * @see CaptureResult#FLASH_STATE
     */
    public static final int FLASH_STATE_READY = 2;

    
Flash fired for this capture.


See Also:
  • FLASH_STATE.FLASH_STATE
/**
     * <p>Flash fired for this capture.</p>
     * @see CaptureResult#FLASH_STATE
     */
    public static final int FLASH_STATE_FIRED = 3;

    
Flash partially illuminated this frame.


This is usually due to the next or previous frame having
the flash fire, and the flash spilling into this capture
due to hardware limitations.


See Also:
  • FLASH_STATE.FLASH_STATE
/**
     * <p>Flash partially illuminated this frame.</p>
     * <p>This is usually due to the next or previous frame having
     * the flash fire, and the flash spilling into this capture
     * due to hardware limitations.</p>
     * @see CaptureResult#FLASH_STATE
     */
    public static final int FLASH_STATE_PARTIAL = 4;

    //
    // Enumeration values for CaptureResult#LENS_STATE
    //

    
See Also:
/**
     * <p>The lens parameters ({@link CaptureRequest#LENS_FOCAL_LENGTH android.lens.focalLength}, {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance},
     * {@link CaptureRequest#LENS_FILTER_DENSITY android.lens.filterDensity} and {@link CaptureRequest#LENS_APERTURE android.lens.aperture}) are not changing.</p>
     *
     * @see CaptureRequest#LENS_APERTURE
     * @see CaptureRequest#LENS_FILTER_DENSITY
     * @see CaptureRequest#LENS_FOCAL_LENGTH
     * @see CaptureRequest#LENS_FOCUS_DISTANCE
     * @see CaptureResult#LENS_STATE
     */
    public static final int LENS_STATE_STATIONARY = 0;

    
One or several of the lens parameters (android.lens.focalLength, android.lens.focusDistance, android.lens.filterDensity or android.lens.aperture) is currently changing.


See Also:
/**
     * <p>One or several of the lens parameters
     * ({@link CaptureRequest#LENS_FOCAL_LENGTH android.lens.focalLength}, {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance},
     * {@link CaptureRequest#LENS_FILTER_DENSITY android.lens.filterDensity} or {@link CaptureRequest#LENS_APERTURE android.lens.aperture}) is
     * currently changing.</p>
     *
     * @see CaptureRequest#LENS_APERTURE
     * @see CaptureRequest#LENS_FILTER_DENSITY
     * @see CaptureRequest#LENS_FOCAL_LENGTH
     * @see CaptureRequest#LENS_FOCUS_DISTANCE
     * @see CaptureResult#LENS_STATE
     */
    public static final int LENS_STATE_MOVING = 1;

    //
    // Enumeration values for CaptureResult#STATISTICS_SCENE_FLICKER
    //

    
The camera device does not detect any flickering illumination
in the current scene.


See Also:
  • STATISTICS_SCENE_FLICKER.STATISTICS_SCENE_FLICKER
/**
     * <p>The camera device does not detect any flickering illumination
     * in the current scene.</p>
     * @see CaptureResult#STATISTICS_SCENE_FLICKER
     */
    public static final int STATISTICS_SCENE_FLICKER_NONE = 0;

    
The camera device detects illumination flickering at 50Hz
in the current scene.


See Also:
  • STATISTICS_SCENE_FLICKER.STATISTICS_SCENE_FLICKER
/**
     * <p>The camera device detects illumination flickering at 50Hz
     * in the current scene.</p>
     * @see CaptureResult#STATISTICS_SCENE_FLICKER
     */
    public static final int STATISTICS_SCENE_FLICKER_50HZ = 1;

    
The camera device detects illumination flickering at 60Hz
in the current scene.


See Also:
  • STATISTICS_SCENE_FLICKER.STATISTICS_SCENE_FLICKER
/**
     * <p>The camera device detects illumination flickering at 60Hz
     * in the current scene.</p>
     * @see CaptureResult#STATISTICS_SCENE_FLICKER
     */
    public static final int STATISTICS_SCENE_FLICKER_60HZ = 2;

    //
    // Enumeration values for CaptureResult#SYNC_FRAME_NUMBER
    //

    
The current result is not yet fully synchronized to any request.


Synchronization is in progress, and reading metadata from this
result may include a mix of data that have taken effect since the
last synchronization time.


In some future result, within android.sync.maxLatency frames, this value will update to the actual frame number frame number the result is guaranteed to be synchronized to (as long as the request settings remain constant).


See Also:
@hide
/**
     * <p>The current result is not yet fully synchronized to any request.</p>
     * <p>Synchronization is in progress, and reading metadata from this
     * result may include a mix of data that have taken effect since the
     * last synchronization time.</p>
     * <p>In some future result, within {@link CameraCharacteristics#SYNC_MAX_LATENCY android.sync.maxLatency} frames,
     * this value will update to the actual frame number frame number
     * the result is guaranteed to be synchronized to (as long as the
     * request settings remain constant).</p>
     *
     * @see CameraCharacteristics#SYNC_MAX_LATENCY
     * @see CaptureResult#SYNC_FRAME_NUMBER
     * @hide
     */
    public static final int SYNC_FRAME_NUMBER_CONVERGING = -1;

    
The current result's synchronization status is unknown.


The result may have already converged, or it may be in
progress.  Reading from this result may include some mix
of settings from past requests.


After a settings change, the new settings will eventually all
take effect for the output buffers and results. However, this
value will not change when that happens. Altering settings
rapidly may provide outcomes using mixes of settings from recent
requests.


This value is intended primarily for backwards compatibility with
the older camera implementations (for android.hardware.Camera).


See Also:
  • SYNC_FRAME_NUMBER.SYNC_FRAME_NUMBER
@hide
/**
     * <p>The current result's synchronization status is unknown.</p>
     * <p>The result may have already converged, or it may be in
     * progress.  Reading from this result may include some mix
     * of settings from past requests.</p>
     * <p>After a settings change, the new settings will eventually all
     * take effect for the output buffers and results. However, this
     * value will not change when that happens. Altering settings
     * rapidly may provide outcomes using mixes of settings from recent
     * requests.</p>
     * <p>This value is intended primarily for backwards compatibility with
     * the older camera implementations (for android.hardware.Camera).</p>
     * @see CaptureResult#SYNC_FRAME_NUMBER
     * @hide
     */
    public static final int SYNC_FRAME_NUMBER_UNKNOWN = -2;

    /*~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
     * End generated code
     *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~O@*/

}