CameraMetadata.java revision 4b8cd6b44cf800cf5dd88e5afbcff4968398779d
1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.hardware.camera2;
18
19import android.hardware.camera2.impl.CameraMetadataNative;
20import android.hardware.camera2.impl.PublicKey;
21import android.hardware.camera2.impl.SyntheticKey;
22import android.util.Log;
23
24import java.lang.reflect.Field;
25import java.lang.reflect.Modifier;
26import java.util.ArrayList;
27import java.util.Arrays;
28import java.util.Collections;
29import java.util.List;
30
31/**
32 * The base class for camera controls and information.
33 *
34 * <p>
35 * This class defines the basic key/value map used for querying for camera
36 * characteristics or capture results, and for setting camera request
37 * parameters.
38 * </p>
39 *
40 * <p>
41 * All instances of CameraMetadata are immutable. The list of keys with {@link #getKeys()}
42 * never changes, nor do the values returned by any key with {@code #get} throughout
43 * the lifetime of the object.
44 * </p>
45 *
46 * @see CameraDevice
47 * @see CameraManager
48 * @see CameraCharacteristics
49 **/
50public abstract class CameraMetadata<TKey> {
51
52    private static final String TAG = "CameraMetadataAb";
53    private static final boolean VERBOSE = Log.isLoggable(TAG, Log.VERBOSE);
54
55    /**
56     * Set a camera metadata field to a value. The field definitions can be
57     * found in {@link CameraCharacteristics}, {@link CaptureResult}, and
58     * {@link CaptureRequest}.
59     *
60     * @param key The metadata field to write.
61     * @param value The value to set the field to, which must be of a matching
62     * type to the key.
63     *
64     * @hide
65     */
66    protected CameraMetadata() {
67    }
68
69    /**
70     * Get a camera metadata field value.
71     *
72     * <p>The field definitions can be
73     * found in {@link CameraCharacteristics}, {@link CaptureResult}, and
74     * {@link CaptureRequest}.</p>
75     *
76     * <p>Querying the value for the same key more than once will return a value
77     * which is equal to the previous queried value.</p>
78     *
79     * @throws IllegalArgumentException if the key was not valid
80     *
81     * @param key The metadata field to read.
82     * @return The value of that key, or {@code null} if the field is not set.
83     *
84     * @hide
85     */
86     protected abstract <T> T getProtected(TKey key);
87
88     /**
89      * @hide
90      */
91     protected abstract Class<TKey> getKeyClass();
92
93    /**
94     * Returns a list of the keys contained in this map.
95     *
96     * <p>The list returned is not modifiable, so any attempts to modify it will throw
97     * a {@code UnsupportedOperationException}.</p>
98     *
99     * <p>All values retrieved by a key from this list with {@code #get} are guaranteed to be
100     * non-{@code null}. Each key is only listed once in the list. The order of the keys
101     * is undefined.</p>
102     *
103     * @return List of the keys contained in this map.
104     */
105    @SuppressWarnings("unchecked")
106    public List<TKey> getKeys() {
107        Class<CameraMetadata<TKey>> thisClass = (Class<CameraMetadata<TKey>>) getClass();
108        return Collections.unmodifiableList(
109                getKeysStatic(thisClass, getKeyClass(), this, /*filterTags*/null));
110    }
111
112    /**
113     * Return a list of all the Key<?> that are declared as a field inside of the class
114     * {@code type}.
115     *
116     * <p>
117     * Optionally, if {@code instance} is not null, then filter out any keys with null values.
118     * </p>
119     *
120     * <p>
121     * Optionally, if {@code filterTags} is not {@code null}, then filter out any keys
122     * whose native {@code tag} is not in {@code filterTags}. The {@code filterTags} array will be
123     * sorted as a side effect.
124     * </p>
125     */
126     /*package*/ @SuppressWarnings("unchecked")
127    static <TKey> ArrayList<TKey> getKeysStatic(
128             Class<?> type, Class<TKey> keyClass,
129             CameraMetadata<TKey> instance,
130             int[] filterTags) {
131
132        if (VERBOSE) Log.v(TAG, "getKeysStatic for " + type);
133
134        // TotalCaptureResult does not have any of the keys on it, use CaptureResult instead
135        if (type.equals(TotalCaptureResult.class)) {
136            type = CaptureResult.class;
137        }
138
139        if (filterTags != null) {
140            Arrays.sort(filterTags);
141        }
142
143        ArrayList<TKey> keyList = new ArrayList<TKey>();
144
145        Field[] fields = type.getDeclaredFields();
146        for (Field field : fields) {
147            // Filter for Keys that are public
148            if (field.getType().isAssignableFrom(keyClass) &&
149                    (field.getModifiers() & Modifier.PUBLIC) != 0) {
150
151                TKey key;
152                try {
153                    key = (TKey) field.get(instance);
154                } catch (IllegalAccessException e) {
155                    throw new AssertionError("Can't get IllegalAccessException", e);
156                } catch (IllegalArgumentException e) {
157                    throw new AssertionError("Can't get IllegalArgumentException", e);
158                }
159
160                if (instance == null || instance.getProtected(key) != null) {
161                    if (shouldKeyBeAdded(key, field, filterTags)) {
162                        keyList.add(key);
163
164                        if (VERBOSE) {
165                            Log.v(TAG, "getKeysStatic - key was added - " + key);
166                        }
167                    } else if (VERBOSE) {
168                        Log.v(TAG, "getKeysStatic - key was filtered - " + key);
169                    }
170                }
171            }
172        }
173
174        return keyList;
175    }
176
177    @SuppressWarnings("rawtypes")
178    private static <TKey> boolean shouldKeyBeAdded(TKey key, Field field, int[] filterTags) {
179        if (key == null) {
180            throw new NullPointerException("key must not be null");
181        }
182
183        CameraMetadataNative.Key nativeKey;
184
185        /*
186         * Get the native key from the public api key
187         */
188        if (key instanceof CameraCharacteristics.Key) {
189            nativeKey = ((CameraCharacteristics.Key)key).getNativeKey();
190        } else if (key instanceof CaptureResult.Key) {
191            nativeKey = ((CaptureResult.Key)key).getNativeKey();
192        } else if (key instanceof CaptureRequest.Key) {
193            nativeKey = ((CaptureRequest.Key)key).getNativeKey();
194        } else {
195            // Reject fields that aren't a key
196            throw new IllegalArgumentException("key type must be that of a metadata key");
197        }
198
199        if (field.getAnnotation(PublicKey.class) == null) {
200            // Never expose @hide keys up to the API user
201            return false;
202        }
203
204        // No filtering necessary
205        if (filterTags == null) {
206            return true;
207        }
208
209        if (field.getAnnotation(SyntheticKey.class) != null) {
210            // This key is synthetic, so calling #getTag will throw IAE
211
212            // TODO: don't just assume all public+synthetic keys are always available
213            return true;
214        }
215
216        /*
217         * Regular key: look up it's native tag and see if it's in filterTags
218         */
219
220        int keyTag = nativeKey.getTag();
221
222        // non-negative result is returned iff the value is in the array
223        return Arrays.binarySearch(filterTags, keyTag) >= 0;
224    }
225
226    /*@O~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
227     * The enum values below this point are generated from metadata
228     * definitions in /system/media/camera/docs. Do not modify by hand or
229     * modify the comment blocks at the start or end.
230     *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~*/
231
232    //
233    // Enumeration values for CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION
234    //
235
236    /**
237     * <p>The lens focus distance is not accurate, and the units used for
238     * {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance} do not correspond to any physical units.</p>
239     * <p>Setting the lens to the same focus distance on separate occasions may
240     * result in a different real focus distance, depending on factors such
241     * as the orientation of the device, the age of the focusing mechanism,
242     * and the device temperature. The focus distance value will still be
243     * in the range of <code>[0, {@link CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance}]</code>, where 0
244     * represents the farthest focus.</p>
245     *
246     * @see CaptureRequest#LENS_FOCUS_DISTANCE
247     * @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE
248     * @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION
249     */
250    public static final int LENS_INFO_FOCUS_DISTANCE_CALIBRATION_UNCALIBRATED = 0;
251
252    /**
253     * <p>The lens focus distance is measured in diopters.</p>
254     * <p>However, setting the lens to the same focus distance
255     * on separate occasions may result in a different real
256     * focus distance, depending on factors such as the
257     * orientation of the device, the age of the focusing
258     * mechanism, and the device temperature.</p>
259     * @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION
260     */
261    public static final int LENS_INFO_FOCUS_DISTANCE_CALIBRATION_APPROXIMATE = 1;
262
263    /**
264     * <p>The lens focus distance is measured in diopters, and
265     * is calibrated.</p>
266     * <p>The lens mechanism is calibrated so that setting the
267     * same focus distance is repeatable on multiple
268     * occasions with good accuracy, and the focus distance
269     * corresponds to the real physical distance to the plane
270     * of best focus.</p>
271     * @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION
272     */
273    public static final int LENS_INFO_FOCUS_DISTANCE_CALIBRATION_CALIBRATED = 2;
274
275    //
276    // Enumeration values for CameraCharacteristics#LENS_FACING
277    //
278
279    /**
280     * <p>The camera device faces the same direction as the device's screen.</p>
281     * @see CameraCharacteristics#LENS_FACING
282     */
283    public static final int LENS_FACING_FRONT = 0;
284
285    /**
286     * <p>The camera device faces the opposite direction as the device's screen.</p>
287     * @see CameraCharacteristics#LENS_FACING
288     */
289    public static final int LENS_FACING_BACK = 1;
290
291    //
292    // Enumeration values for CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
293    //
294
295    /**
296     * <p>The minimal set of capabilities that every camera
297     * device (regardless of {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel})
298     * supports.</p>
299     * <p>This capability is listed by all devices, and
300     * indicates that the camera device has a feature set
301     * that's comparable to the baseline requirements for the
302     * older android.hardware.Camera API.</p>
303     *
304     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
305     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
306     */
307    public static final int REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE = 0;
308
309    /**
310     * <p>The camera device can be manually controlled (3A algorithms such
311     * as auto-exposure, and auto-focus can be bypassed).
312     * The camera device supports basic manual control of the sensor image
313     * acquisition related stages. This means the following controls are
314     * guaranteed to be supported:</p>
315     * <ul>
316     * <li>Manual frame duration control<ul>
317     * <li>{@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration}</li>
318     * <li>{@link CameraCharacteristics#SENSOR_INFO_MAX_FRAME_DURATION android.sensor.info.maxFrameDuration}</li>
319     * </ul>
320     * </li>
321     * <li>Manual exposure control<ul>
322     * <li>{@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}</li>
323     * <li>{@link CameraCharacteristics#SENSOR_INFO_EXPOSURE_TIME_RANGE android.sensor.info.exposureTimeRange}</li>
324     * </ul>
325     * </li>
326     * <li>Manual sensitivity control<ul>
327     * <li>{@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}</li>
328     * <li>{@link CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE android.sensor.info.sensitivityRange}</li>
329     * </ul>
330     * </li>
331     * <li>Manual lens control (if the lens is adjustable)<ul>
332     * <li>android.lens.*</li>
333     * </ul>
334     * </li>
335     * <li>Manual flash control (if a flash unit is present)<ul>
336     * <li>android.flash.*</li>
337     * </ul>
338     * </li>
339     * <li>Manual black level locking<ul>
340     * <li>{@link CaptureRequest#BLACK_LEVEL_LOCK android.blackLevel.lock}</li>
341     * </ul>
342     * </li>
343     * </ul>
344     * <p>If any of the above 3A algorithms are enabled, then the camera
345     * device will accurately report the values applied by 3A in the
346     * result.</p>
347     * <p>A given camera device may also support additional manual sensor controls,
348     * but this capability only covers the above list of controls.</p>
349     * <p>If this is supported, {@link CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap} will
350     * additionally return a min frame duration that is greater than
351     * zero for each supported size-format combination.</p>
352     *
353     * @see CaptureRequest#BLACK_LEVEL_LOCK
354     * @see CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP
355     * @see CaptureRequest#SENSOR_EXPOSURE_TIME
356     * @see CaptureRequest#SENSOR_FRAME_DURATION
357     * @see CameraCharacteristics#SENSOR_INFO_EXPOSURE_TIME_RANGE
358     * @see CameraCharacteristics#SENSOR_INFO_MAX_FRAME_DURATION
359     * @see CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE
360     * @see CaptureRequest#SENSOR_SENSITIVITY
361     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
362     */
363    public static final int REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR = 1;
364
365    /**
366     * <p>The camera device post-processing stages can be manually controlled.
367     * The camera device supports basic manual control of the image post-processing
368     * stages. This means the following controls are guaranteed to be supported:</p>
369     * <ul>
370     * <li>Manual tonemap control<ul>
371     * <li>{@link CaptureRequest#TONEMAP_CURVE android.tonemap.curve}</li>
372     * <li>{@link CaptureRequest#TONEMAP_MODE android.tonemap.mode}</li>
373     * <li>{@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}</li>
374     * </ul>
375     * </li>
376     * <li>Manual white balance control<ul>
377     * <li>{@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}</li>
378     * <li>{@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains}</li>
379     * </ul>
380     * </li>
381     * <li>Manual lens shading map control<ul>
382     * <li>{@link CaptureRequest#SHADING_MODE android.shading.mode}</li>
383     * <li>{@link CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE android.statistics.lensShadingMapMode}</li>
384     * <li>android.statistics.lensShadingMap</li>
385     * <li>android.lens.info.shadingMapSize</li>
386     * </ul>
387     * </li>
388     * <li>Manual aberration correction control (if aberration correction is supported)<ul>
389     * <li>{@link CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE android.colorCorrection.aberrationMode}</li>
390     * <li>{@link CameraCharacteristics#COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES android.colorCorrection.availableAberrationModes}</li>
391     * </ul>
392     * </li>
393     * </ul>
394     * <p>If auto white balance is enabled, then the camera device
395     * will accurately report the values applied by AWB in the result.</p>
396     * <p>A given camera device may also support additional post-processing
397     * controls, but this capability only covers the above list of controls.</p>
398     *
399     * @see CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE
400     * @see CameraCharacteristics#COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES
401     * @see CaptureRequest#COLOR_CORRECTION_GAINS
402     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
403     * @see CaptureRequest#SHADING_MODE
404     * @see CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE
405     * @see CaptureRequest#TONEMAP_CURVE
406     * @see CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS
407     * @see CaptureRequest#TONEMAP_MODE
408     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
409     */
410    public static final int REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING = 2;
411
412    /**
413     * <p>The camera device supports outputting RAW buffers and
414     * metadata for interpreting them.</p>
415     * <p>Devices supporting the RAW capability allow both for
416     * saving DNG files, and for direct application processing of
417     * raw sensor images.</p>
418     * <ul>
419     * <li>RAW_SENSOR is supported as an output format.</li>
420     * <li>The maximum available resolution for RAW_SENSOR streams
421     * will match either the value in
422     * {@link CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE android.sensor.info.pixelArraySize} or
423     * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.</li>
424     * <li>All DNG-related optional metadata entries are provided
425     * by the camera device.</li>
426     * </ul>
427     *
428     * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE
429     * @see CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE
430     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
431     */
432    public static final int REQUEST_AVAILABLE_CAPABILITIES_RAW = 3;
433
434    /**
435     * <p>The camera device supports the Zero Shutter Lag use case.</p>
436     * <ul>
437     * <li>At least one input stream can be used.</li>
438     * <li>RAW_OPAQUE is supported as an output/input format</li>
439     * <li>Using RAW_OPAQUE does not cause a frame rate drop
440     * relative to the sensor's maximum capture rate (at that
441     * resolution).</li>
442     * <li>RAW_OPAQUE will be reprocessable into both YUV_420_888
443     * and JPEG formats.</li>
444     * <li>The maximum available resolution for RAW_OPAQUE streams
445     * (both input/output) will match the maximum available
446     * resolution of JPEG streams.</li>
447     * </ul>
448     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
449     * @hide
450     */
451    public static final int REQUEST_AVAILABLE_CAPABILITIES_ZSL = 4;
452
453    //
454    // Enumeration values for CameraCharacteristics#SCALER_CROPPING_TYPE
455    //
456
457    /**
458     * <p>The camera device only supports centered crop regions.</p>
459     * @see CameraCharacteristics#SCALER_CROPPING_TYPE
460     */
461    public static final int SCALER_CROPPING_TYPE_CENTER_ONLY = 0;
462
463    /**
464     * <p>The camera device supports arbitrarily chosen crop regions.</p>
465     * @see CameraCharacteristics#SCALER_CROPPING_TYPE
466     */
467    public static final int SCALER_CROPPING_TYPE_FREEFORM = 1;
468
469    //
470    // Enumeration values for CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
471    //
472
473    /**
474     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
475     */
476    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGGB = 0;
477
478    /**
479     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
480     */
481    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GRBG = 1;
482
483    /**
484     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
485     */
486    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GBRG = 2;
487
488    /**
489     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
490     */
491    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_BGGR = 3;
492
493    /**
494     * <p>Sensor is not Bayer; output has 3 16-bit
495     * values for each pixel, instead of just 1 16-bit value
496     * per pixel.</p>
497     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
498     */
499    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGB = 4;
500
501    //
502    // Enumeration values for CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE
503    //
504
505    /**
506     * <p>Timestamps from {@link CaptureResult#SENSOR_TIMESTAMP android.sensor.timestamp} are in nanoseconds and monotonic,
507     * but can not be compared to timestamps from other subsystems
508     * (e.g. accelerometer, gyro etc.), or other instances of the same or different
509     * camera devices in the same system. Timestamps between streams and results for
510     * a single camera instance are comparable, and the timestamps for all buffers
511     * and the result metadata generated by a single capture are identical.</p>
512     *
513     * @see CaptureResult#SENSOR_TIMESTAMP
514     * @see CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE
515     */
516    public static final int SENSOR_INFO_TIMESTAMP_SOURCE_UNKNOWN = 0;
517
518    /**
519     * <p>Timestamps from {@link CaptureResult#SENSOR_TIMESTAMP android.sensor.timestamp} are in the same timebase as
520     * android.os.SystemClock#elapsedRealtimeNanos(),
521     * and they can be compared to other timestamps using that base.</p>
522     *
523     * @see CaptureResult#SENSOR_TIMESTAMP
524     * @see CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE
525     */
526    public static final int SENSOR_INFO_TIMESTAMP_SOURCE_REALTIME = 1;
527
528    //
529    // Enumeration values for CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
530    //
531
532    /**
533     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
534     */
535    public static final int SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT = 1;
536
537    /**
538     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
539     */
540    public static final int SENSOR_REFERENCE_ILLUMINANT1_FLUORESCENT = 2;
541
542    /**
543     * <p>Incandescent light</p>
544     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
545     */
546    public static final int SENSOR_REFERENCE_ILLUMINANT1_TUNGSTEN = 3;
547
548    /**
549     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
550     */
551    public static final int SENSOR_REFERENCE_ILLUMINANT1_FLASH = 4;
552
553    /**
554     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
555     */
556    public static final int SENSOR_REFERENCE_ILLUMINANT1_FINE_WEATHER = 9;
557
558    /**
559     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
560     */
561    public static final int SENSOR_REFERENCE_ILLUMINANT1_CLOUDY_WEATHER = 10;
562
563    /**
564     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
565     */
566    public static final int SENSOR_REFERENCE_ILLUMINANT1_SHADE = 11;
567
568    /**
569     * <p>D 5700 - 7100K</p>
570     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
571     */
572    public static final int SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT_FLUORESCENT = 12;
573
574    /**
575     * <p>N 4600 - 5400K</p>
576     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
577     */
578    public static final int SENSOR_REFERENCE_ILLUMINANT1_DAY_WHITE_FLUORESCENT = 13;
579
580    /**
581     * <p>W 3900 - 4500K</p>
582     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
583     */
584    public static final int SENSOR_REFERENCE_ILLUMINANT1_COOL_WHITE_FLUORESCENT = 14;
585
586    /**
587     * <p>WW 3200 - 3700K</p>
588     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
589     */
590    public static final int SENSOR_REFERENCE_ILLUMINANT1_WHITE_FLUORESCENT = 15;
591
592    /**
593     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
594     */
595    public static final int SENSOR_REFERENCE_ILLUMINANT1_STANDARD_A = 17;
596
597    /**
598     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
599     */
600    public static final int SENSOR_REFERENCE_ILLUMINANT1_STANDARD_B = 18;
601
602    /**
603     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
604     */
605    public static final int SENSOR_REFERENCE_ILLUMINANT1_STANDARD_C = 19;
606
607    /**
608     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
609     */
610    public static final int SENSOR_REFERENCE_ILLUMINANT1_D55 = 20;
611
612    /**
613     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
614     */
615    public static final int SENSOR_REFERENCE_ILLUMINANT1_D65 = 21;
616
617    /**
618     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
619     */
620    public static final int SENSOR_REFERENCE_ILLUMINANT1_D75 = 22;
621
622    /**
623     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
624     */
625    public static final int SENSOR_REFERENCE_ILLUMINANT1_D50 = 23;
626
627    /**
628     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
629     */
630    public static final int SENSOR_REFERENCE_ILLUMINANT1_ISO_STUDIO_TUNGSTEN = 24;
631
632    //
633    // Enumeration values for CameraCharacteristics#LED_AVAILABLE_LEDS
634    //
635
636    /**
637     * <p>android.led.transmit control is used.</p>
638     * @see CameraCharacteristics#LED_AVAILABLE_LEDS
639     * @hide
640     */
641    public static final int LED_AVAILABLE_LEDS_TRANSMIT = 0;
642
643    //
644    // Enumeration values for CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
645    //
646
647    /**
648     * <p>This camera device has only limited capabilities.</p>
649     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
650     */
651    public static final int INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED = 0;
652
653    /**
654     * <p>This camera device is capable of supporting advanced imaging applications.</p>
655     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
656     */
657    public static final int INFO_SUPPORTED_HARDWARE_LEVEL_FULL = 1;
658
659    /**
660     * <p>This camera device is running in backward compatibility mode.</p>
661     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
662     */
663    public static final int INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY = 2;
664
665    //
666    // Enumeration values for CameraCharacteristics#SYNC_MAX_LATENCY
667    //
668
669    /**
670     * <p>Every frame has the requests immediately applied.</p>
671     * <p>Furthermore for all results,
672     * <code>android.sync.frameNumber == CaptureResult#getFrameNumber()</code></p>
673     * <p>Changing controls over multiple requests one after another will
674     * produce results that have those controls applied atomically
675     * each frame.</p>
676     * <p>All FULL capability devices will have this as their maxLatency.</p>
677     * @see CameraCharacteristics#SYNC_MAX_LATENCY
678     */
679    public static final int SYNC_MAX_LATENCY_PER_FRAME_CONTROL = 0;
680
681    /**
682     * <p>Each new frame has some subset (potentially the entire set)
683     * of the past requests applied to the camera settings.</p>
684     * <p>By submitting a series of identical requests, the camera device
685     * will eventually have the camera settings applied, but it is
686     * unknown when that exact point will be.</p>
687     * <p>All LEGACY capability devices will have this as their maxLatency.</p>
688     * @see CameraCharacteristics#SYNC_MAX_LATENCY
689     */
690    public static final int SYNC_MAX_LATENCY_UNKNOWN = -1;
691
692    //
693    // Enumeration values for CaptureRequest#COLOR_CORRECTION_MODE
694    //
695
696    /**
697     * <p>Use the {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform} matrix
698     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} to do color conversion.</p>
699     * <p>All advanced white balance adjustments (not specified
700     * by our white balance pipeline) must be disabled.</p>
701     * <p>If AWB is enabled with <code>{@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} != OFF</code>, then
702     * TRANSFORM_MATRIX is ignored. The camera device will override
703     * this value to either FAST or HIGH_QUALITY.</p>
704     *
705     * @see CaptureRequest#COLOR_CORRECTION_GAINS
706     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
707     * @see CaptureRequest#CONTROL_AWB_MODE
708     * @see CaptureRequest#COLOR_CORRECTION_MODE
709     */
710    public static final int COLOR_CORRECTION_MODE_TRANSFORM_MATRIX = 0;
711
712    /**
713     * <p>Color correction processing must not slow down
714     * capture rate relative to sensor raw output.</p>
715     * <p>Advanced white balance adjustments above and beyond
716     * the specified white balance pipeline may be applied.</p>
717     * <p>If AWB is enabled with <code>{@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} != OFF</code>, then
718     * the camera device uses the last frame's AWB values
719     * (or defaults if AWB has never been run).</p>
720     *
721     * @see CaptureRequest#CONTROL_AWB_MODE
722     * @see CaptureRequest#COLOR_CORRECTION_MODE
723     */
724    public static final int COLOR_CORRECTION_MODE_FAST = 1;
725
726    /**
727     * <p>Color correction processing operates at improved
728     * quality but reduced capture rate (relative to sensor raw
729     * output).</p>
730     * <p>Advanced white balance adjustments above and beyond
731     * the specified white balance pipeline may be applied.</p>
732     * <p>If AWB is enabled with <code>{@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} != OFF</code>, then
733     * the camera device uses the last frame's AWB values
734     * (or defaults if AWB has never been run).</p>
735     *
736     * @see CaptureRequest#CONTROL_AWB_MODE
737     * @see CaptureRequest#COLOR_CORRECTION_MODE
738     */
739    public static final int COLOR_CORRECTION_MODE_HIGH_QUALITY = 2;
740
741    //
742    // Enumeration values for CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE
743    //
744
745    /**
746     * <p>No aberration correction is applied.</p>
747     * @see CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE
748     */
749    public static final int COLOR_CORRECTION_ABERRATION_MODE_OFF = 0;
750
751    /**
752     * <p>Aberration correction will not slow down capture rate
753     * relative to sensor raw output.</p>
754     * @see CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE
755     */
756    public static final int COLOR_CORRECTION_ABERRATION_MODE_FAST = 1;
757
758    /**
759     * <p>Aberration correction operates at improved quality but reduced
760     * capture rate (relative to sensor raw output).</p>
761     * @see CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE
762     */
763    public static final int COLOR_CORRECTION_ABERRATION_MODE_HIGH_QUALITY = 2;
764
765    //
766    // Enumeration values for CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
767    //
768
769    /**
770     * <p>The camera device will not adjust exposure duration to
771     * avoid banding problems.</p>
772     * @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
773     */
774    public static final int CONTROL_AE_ANTIBANDING_MODE_OFF = 0;
775
776    /**
777     * <p>The camera device will adjust exposure duration to
778     * avoid banding problems with 50Hz illumination sources.</p>
779     * @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
780     */
781    public static final int CONTROL_AE_ANTIBANDING_MODE_50HZ = 1;
782
783    /**
784     * <p>The camera device will adjust exposure duration to
785     * avoid banding problems with 60Hz illumination
786     * sources.</p>
787     * @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
788     */
789    public static final int CONTROL_AE_ANTIBANDING_MODE_60HZ = 2;
790
791    /**
792     * <p>The camera device will automatically adapt its
793     * antibanding routine to the current illumination
794     * conditions. This is the default.</p>
795     * @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
796     */
797    public static final int CONTROL_AE_ANTIBANDING_MODE_AUTO = 3;
798
799    //
800    // Enumeration values for CaptureRequest#CONTROL_AE_MODE
801    //
802
803    /**
804     * <p>The camera device's autoexposure routine is disabled.</p>
805     * <p>The application-selected {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime},
806     * {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity} and
807     * {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration} are used by the camera
808     * device, along with android.flash.* fields, if there's
809     * a flash unit for this camera device.</p>
810     * <p>LEGACY devices do not support the OFF mode and will
811     * override attempts to use this value to ON.</p>
812     *
813     * @see CaptureRequest#SENSOR_EXPOSURE_TIME
814     * @see CaptureRequest#SENSOR_FRAME_DURATION
815     * @see CaptureRequest#SENSOR_SENSITIVITY
816     * @see CaptureRequest#CONTROL_AE_MODE
817     */
818    public static final int CONTROL_AE_MODE_OFF = 0;
819
820    /**
821     * <p>The camera device's autoexposure routine is active,
822     * with no flash control.</p>
823     * <p>The application's values for
824     * {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime},
825     * {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}, and
826     * {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration} are ignored. The
827     * application has control over the various
828     * android.flash.* fields.</p>
829     *
830     * @see CaptureRequest#SENSOR_EXPOSURE_TIME
831     * @see CaptureRequest#SENSOR_FRAME_DURATION
832     * @see CaptureRequest#SENSOR_SENSITIVITY
833     * @see CaptureRequest#CONTROL_AE_MODE
834     */
835    public static final int CONTROL_AE_MODE_ON = 1;
836
837    /**
838     * <p>Like ON, except that the camera device also controls
839     * the camera's flash unit, firing it in low-light
840     * conditions.</p>
841     * <p>The flash may be fired during a precapture sequence
842     * (triggered by {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}) and
843     * may be fired for captures for which the
844     * {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} field is set to
845     * STILL_CAPTURE</p>
846     *
847     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
848     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
849     * @see CaptureRequest#CONTROL_AE_MODE
850     */
851    public static final int CONTROL_AE_MODE_ON_AUTO_FLASH = 2;
852
853    /**
854     * <p>Like ON, except that the camera device also controls
855     * the camera's flash unit, always firing it for still
856     * captures.</p>
857     * <p>The flash may be fired during a precapture sequence
858     * (triggered by {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}) and
859     * will always be fired for captures for which the
860     * {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} field is set to
861     * STILL_CAPTURE</p>
862     *
863     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
864     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
865     * @see CaptureRequest#CONTROL_AE_MODE
866     */
867    public static final int CONTROL_AE_MODE_ON_ALWAYS_FLASH = 3;
868
869    /**
870     * <p>Like ON_AUTO_FLASH, but with automatic red eye
871     * reduction.</p>
872     * <p>If deemed necessary by the camera device, a red eye
873     * reduction flash will fire during the precapture
874     * sequence.</p>
875     * @see CaptureRequest#CONTROL_AE_MODE
876     */
877    public static final int CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE = 4;
878
879    //
880    // Enumeration values for CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
881    //
882
883    /**
884     * <p>The trigger is idle.</p>
885     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
886     */
887    public static final int CONTROL_AE_PRECAPTURE_TRIGGER_IDLE = 0;
888
889    /**
890     * <p>The precapture metering sequence will be started
891     * by the camera device.</p>
892     * <p>The exact effect of the precapture trigger depends on
893     * the current AE mode and state.</p>
894     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
895     */
896    public static final int CONTROL_AE_PRECAPTURE_TRIGGER_START = 1;
897
898    //
899    // Enumeration values for CaptureRequest#CONTROL_AF_MODE
900    //
901
902    /**
903     * <p>The auto-focus routine does not control the lens;
904     * {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance} is controlled by the
905     * application.</p>
906     *
907     * @see CaptureRequest#LENS_FOCUS_DISTANCE
908     * @see CaptureRequest#CONTROL_AF_MODE
909     */
910    public static final int CONTROL_AF_MODE_OFF = 0;
911
912    /**
913     * <p>Basic automatic focus mode.</p>
914     * <p>In this mode, the lens does not move unless
915     * the autofocus trigger action is called. When that trigger
916     * is activated, AF will transition to ACTIVE_SCAN, then to
917     * the outcome of the scan (FOCUSED or NOT_FOCUSED).</p>
918     * <p>Always supported if lens is not fixed focus.</p>
919     * <p>Use {@link CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance} to determine if lens
920     * is fixed-focus.</p>
921     * <p>Triggering AF_CANCEL resets the lens position to default,
922     * and sets the AF state to INACTIVE.</p>
923     *
924     * @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE
925     * @see CaptureRequest#CONTROL_AF_MODE
926     */
927    public static final int CONTROL_AF_MODE_AUTO = 1;
928
929    /**
930     * <p>Close-up focusing mode.</p>
931     * <p>In this mode, the lens does not move unless the
932     * autofocus trigger action is called. When that trigger is
933     * activated, AF will transition to ACTIVE_SCAN, then to
934     * the outcome of the scan (FOCUSED or NOT_FOCUSED). This
935     * mode is optimized for focusing on objects very close to
936     * the camera.</p>
937     * <p>When that trigger is activated, AF will transition to
938     * ACTIVE_SCAN, then to the outcome of the scan (FOCUSED or
939     * NOT_FOCUSED). Triggering cancel AF resets the lens
940     * position to default, and sets the AF state to
941     * INACTIVE.</p>
942     * @see CaptureRequest#CONTROL_AF_MODE
943     */
944    public static final int CONTROL_AF_MODE_MACRO = 2;
945
946    /**
947     * <p>In this mode, the AF algorithm modifies the lens
948     * position continually to attempt to provide a
949     * constantly-in-focus image stream.</p>
950     * <p>The focusing behavior should be suitable for good quality
951     * video recording; typically this means slower focus
952     * movement and no overshoots. When the AF trigger is not
953     * involved, the AF algorithm should start in INACTIVE state,
954     * and then transition into PASSIVE_SCAN and PASSIVE_FOCUSED
955     * states as appropriate. When the AF trigger is activated,
956     * the algorithm should immediately transition into
957     * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
958     * lens position until a cancel AF trigger is received.</p>
959     * <p>Once cancel is received, the algorithm should transition
960     * back to INACTIVE and resume passive scan. Note that this
961     * behavior is not identical to CONTINUOUS_PICTURE, since an
962     * ongoing PASSIVE_SCAN must immediately be
963     * canceled.</p>
964     * @see CaptureRequest#CONTROL_AF_MODE
965     */
966    public static final int CONTROL_AF_MODE_CONTINUOUS_VIDEO = 3;
967
968    /**
969     * <p>In this mode, the AF algorithm modifies the lens
970     * position continually to attempt to provide a
971     * constantly-in-focus image stream.</p>
972     * <p>The focusing behavior should be suitable for still image
973     * capture; typically this means focusing as fast as
974     * possible. When the AF trigger is not involved, the AF
975     * algorithm should start in INACTIVE state, and then
976     * transition into PASSIVE_SCAN and PASSIVE_FOCUSED states as
977     * appropriate as it attempts to maintain focus. When the AF
978     * trigger is activated, the algorithm should finish its
979     * PASSIVE_SCAN if active, and then transition into
980     * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
981     * lens position until a cancel AF trigger is received.</p>
982     * <p>When the AF cancel trigger is activated, the algorithm
983     * should transition back to INACTIVE and then act as if it
984     * has just been started.</p>
985     * @see CaptureRequest#CONTROL_AF_MODE
986     */
987    public static final int CONTROL_AF_MODE_CONTINUOUS_PICTURE = 4;
988
989    /**
990     * <p>Extended depth of field (digital focus) mode.</p>
991     * <p>The camera device will produce images with an extended
992     * depth of field automatically; no special focusing
993     * operations need to be done before taking a picture.</p>
994     * <p>AF triggers are ignored, and the AF state will always be
995     * INACTIVE.</p>
996     * @see CaptureRequest#CONTROL_AF_MODE
997     */
998    public static final int CONTROL_AF_MODE_EDOF = 5;
999
1000    //
1001    // Enumeration values for CaptureRequest#CONTROL_AF_TRIGGER
1002    //
1003
1004    /**
1005     * <p>The trigger is idle.</p>
1006     * @see CaptureRequest#CONTROL_AF_TRIGGER
1007     */
1008    public static final int CONTROL_AF_TRIGGER_IDLE = 0;
1009
1010    /**
1011     * <p>Autofocus will trigger now.</p>
1012     * @see CaptureRequest#CONTROL_AF_TRIGGER
1013     */
1014    public static final int CONTROL_AF_TRIGGER_START = 1;
1015
1016    /**
1017     * <p>Autofocus will return to its initial
1018     * state, and cancel any currently active trigger.</p>
1019     * @see CaptureRequest#CONTROL_AF_TRIGGER
1020     */
1021    public static final int CONTROL_AF_TRIGGER_CANCEL = 2;
1022
1023    //
1024    // Enumeration values for CaptureRequest#CONTROL_AWB_MODE
1025    //
1026
1027    /**
1028     * <p>The camera device's auto-white balance routine is disabled.</p>
1029     * <p>The application-selected color transform matrix
1030     * ({@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}) and gains
1031     * ({@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains}) are used by the camera
1032     * device for manual white balance control.</p>
1033     *
1034     * @see CaptureRequest#COLOR_CORRECTION_GAINS
1035     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
1036     * @see CaptureRequest#CONTROL_AWB_MODE
1037     */
1038    public static final int CONTROL_AWB_MODE_OFF = 0;
1039
1040    /**
1041     * <p>The camera device's auto-white balance routine is active.</p>
1042     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
1043     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
1044     * For devices that support the MANUAL_POST_PROCESSING capability, the
1045     * values used by the camera device for the transform and gains
1046     * will be available in the capture result for this request.</p>
1047     *
1048     * @see CaptureRequest#COLOR_CORRECTION_GAINS
1049     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
1050     * @see CaptureRequest#CONTROL_AWB_MODE
1051     */
1052    public static final int CONTROL_AWB_MODE_AUTO = 1;
1053
1054    /**
1055     * <p>The camera device's auto-white balance routine is disabled;
1056     * the camera device uses incandescent light as the assumed scene
1057     * illumination for white balance.</p>
1058     * <p>While the exact white balance transforms are up to the
1059     * camera device, they will approximately match the CIE
1060     * standard illuminant A.</p>
1061     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
1062     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
1063     * For devices that support the MANUAL_POST_PROCESSING capability, the
1064     * values used by the camera device for the transform and gains
1065     * will be available in the capture result for this request.</p>
1066     *
1067     * @see CaptureRequest#COLOR_CORRECTION_GAINS
1068     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
1069     * @see CaptureRequest#CONTROL_AWB_MODE
1070     */
1071    public static final int CONTROL_AWB_MODE_INCANDESCENT = 2;
1072
1073    /**
1074     * <p>The camera device's auto-white balance routine is disabled;
1075     * the camera device uses fluorescent light as the assumed scene
1076     * illumination for white balance.</p>
1077     * <p>While the exact white balance transforms are up to the
1078     * camera device, they will approximately match the CIE
1079     * standard illuminant F2.</p>
1080     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
1081     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
1082     * For devices that support the MANUAL_POST_PROCESSING capability, the
1083     * values used by the camera device for the transform and gains
1084     * will be available in the capture result for this request.</p>
1085     *
1086     * @see CaptureRequest#COLOR_CORRECTION_GAINS
1087     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
1088     * @see CaptureRequest#CONTROL_AWB_MODE
1089     */
1090    public static final int CONTROL_AWB_MODE_FLUORESCENT = 3;
1091
1092    /**
1093     * <p>The camera device's auto-white balance routine is disabled;
1094     * the camera device uses warm fluorescent light as the assumed scene
1095     * illumination for white balance.</p>
1096     * <p>While the exact white balance transforms are up to the
1097     * camera device, they will approximately match the CIE
1098     * standard illuminant F4.</p>
1099     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
1100     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
1101     * For devices that support the MANUAL_POST_PROCESSING capability, the
1102     * values used by the camera device for the transform and gains
1103     * will be available in the capture result for this request.</p>
1104     *
1105     * @see CaptureRequest#COLOR_CORRECTION_GAINS
1106     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
1107     * @see CaptureRequest#CONTROL_AWB_MODE
1108     */
1109    public static final int CONTROL_AWB_MODE_WARM_FLUORESCENT = 4;
1110
1111    /**
1112     * <p>The camera device's auto-white balance routine is disabled;
1113     * the camera device uses daylight light as the assumed scene
1114     * illumination for white balance.</p>
1115     * <p>While the exact white balance transforms are up to the
1116     * camera device, they will approximately match the CIE
1117     * standard illuminant D65.</p>
1118     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
1119     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
1120     * For devices that support the MANUAL_POST_PROCESSING capability, the
1121     * values used by the camera device for the transform and gains
1122     * will be available in the capture result for this request.</p>
1123     *
1124     * @see CaptureRequest#COLOR_CORRECTION_GAINS
1125     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
1126     * @see CaptureRequest#CONTROL_AWB_MODE
1127     */
1128    public static final int CONTROL_AWB_MODE_DAYLIGHT = 5;
1129
1130    /**
1131     * <p>The camera device's auto-white balance routine is disabled;
1132     * the camera device uses cloudy daylight light as the assumed scene
1133     * illumination for white balance.</p>
1134     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
1135     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
1136     * For devices that support the MANUAL_POST_PROCESSING capability, the
1137     * values used by the camera device for the transform and gains
1138     * will be available in the capture result for this request.</p>
1139     *
1140     * @see CaptureRequest#COLOR_CORRECTION_GAINS
1141     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
1142     * @see CaptureRequest#CONTROL_AWB_MODE
1143     */
1144    public static final int CONTROL_AWB_MODE_CLOUDY_DAYLIGHT = 6;
1145
1146    /**
1147     * <p>The camera device's auto-white balance routine is disabled;
1148     * the camera device uses twilight light as the assumed scene
1149     * illumination for white balance.</p>
1150     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
1151     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
1152     * For devices that support the MANUAL_POST_PROCESSING capability, the
1153     * values used by the camera device for the transform and gains
1154     * will be available in the capture result for this request.</p>
1155     *
1156     * @see CaptureRequest#COLOR_CORRECTION_GAINS
1157     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
1158     * @see CaptureRequest#CONTROL_AWB_MODE
1159     */
1160    public static final int CONTROL_AWB_MODE_TWILIGHT = 7;
1161
1162    /**
1163     * <p>The camera device's auto-white balance routine is disabled;
1164     * the camera device uses shade light as the assumed scene
1165     * illumination for white balance.</p>
1166     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
1167     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
1168     * For devices that support the MANUAL_POST_PROCESSING capability, the
1169     * values used by the camera device for the transform and gains
1170     * will be available in the capture result for this request.</p>
1171     *
1172     * @see CaptureRequest#COLOR_CORRECTION_GAINS
1173     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
1174     * @see CaptureRequest#CONTROL_AWB_MODE
1175     */
1176    public static final int CONTROL_AWB_MODE_SHADE = 8;
1177
1178    //
1179    // Enumeration values for CaptureRequest#CONTROL_CAPTURE_INTENT
1180    //
1181
1182    /**
1183     * <p>The goal of this request doesn't fall into the other
1184     * categories. The camera device will default to preview-like
1185     * behavior.</p>
1186     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1187     */
1188    public static final int CONTROL_CAPTURE_INTENT_CUSTOM = 0;
1189
1190    /**
1191     * <p>This request is for a preview-like use case.</p>
1192     * <p>The precapture trigger may be used to start off a metering
1193     * w/flash sequence.</p>
1194     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1195     */
1196    public static final int CONTROL_CAPTURE_INTENT_PREVIEW = 1;
1197
1198    /**
1199     * <p>This request is for a still capture-type
1200     * use case.</p>
1201     * <p>If the flash unit is under automatic control, it may fire as needed.</p>
1202     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1203     */
1204    public static final int CONTROL_CAPTURE_INTENT_STILL_CAPTURE = 2;
1205
1206    /**
1207     * <p>This request is for a video recording
1208     * use case.</p>
1209     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1210     */
1211    public static final int CONTROL_CAPTURE_INTENT_VIDEO_RECORD = 3;
1212
1213    /**
1214     * <p>This request is for a video snapshot (still
1215     * image while recording video) use case.</p>
1216     * <p>The camera device should take the highest-quality image
1217     * possible (given the other settings) without disrupting the
1218     * frame rate of video recording.<br />
1219     * </p>
1220     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1221     */
1222    public static final int CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT = 4;
1223
1224    /**
1225     * <p>This request is for a ZSL usecase; the
1226     * application will stream full-resolution images and
1227     * reprocess one or several later for a final
1228     * capture.</p>
1229     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1230     */
1231    public static final int CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG = 5;
1232
1233    /**
1234     * <p>This request is for manual capture use case where
1235     * the applications want to directly control the capture parameters.</p>
1236     * <p>For example, the application may wish to manually control
1237     * {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}, {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}, etc.</p>
1238     *
1239     * @see CaptureRequest#SENSOR_EXPOSURE_TIME
1240     * @see CaptureRequest#SENSOR_SENSITIVITY
1241     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1242     */
1243    public static final int CONTROL_CAPTURE_INTENT_MANUAL = 6;
1244
1245    //
1246    // Enumeration values for CaptureRequest#CONTROL_EFFECT_MODE
1247    //
1248
1249    /**
1250     * <p>No color effect will be applied.</p>
1251     * @see CaptureRequest#CONTROL_EFFECT_MODE
1252     */
1253    public static final int CONTROL_EFFECT_MODE_OFF = 0;
1254
1255    /**
1256     * <p>A "monocolor" effect where the image is mapped into
1257     * a single color.</p>
1258     * <p>This will typically be grayscale.</p>
1259     * @see CaptureRequest#CONTROL_EFFECT_MODE
1260     */
1261    public static final int CONTROL_EFFECT_MODE_MONO = 1;
1262
1263    /**
1264     * <p>A "photo-negative" effect where the image's colors
1265     * are inverted.</p>
1266     * @see CaptureRequest#CONTROL_EFFECT_MODE
1267     */
1268    public static final int CONTROL_EFFECT_MODE_NEGATIVE = 2;
1269
1270    /**
1271     * <p>A "solarisation" effect (Sabattier effect) where the
1272     * image is wholly or partially reversed in
1273     * tone.</p>
1274     * @see CaptureRequest#CONTROL_EFFECT_MODE
1275     */
1276    public static final int CONTROL_EFFECT_MODE_SOLARIZE = 3;
1277
1278    /**
1279     * <p>A "sepia" effect where the image is mapped into warm
1280     * gray, red, and brown tones.</p>
1281     * @see CaptureRequest#CONTROL_EFFECT_MODE
1282     */
1283    public static final int CONTROL_EFFECT_MODE_SEPIA = 4;
1284
1285    /**
1286     * <p>A "posterization" effect where the image uses
1287     * discrete regions of tone rather than a continuous
1288     * gradient of tones.</p>
1289     * @see CaptureRequest#CONTROL_EFFECT_MODE
1290     */
1291    public static final int CONTROL_EFFECT_MODE_POSTERIZE = 5;
1292
1293    /**
1294     * <p>A "whiteboard" effect where the image is typically displayed
1295     * as regions of white, with black or grey details.</p>
1296     * @see CaptureRequest#CONTROL_EFFECT_MODE
1297     */
1298    public static final int CONTROL_EFFECT_MODE_WHITEBOARD = 6;
1299
1300    /**
1301     * <p>A "blackboard" effect where the image is typically displayed
1302     * as regions of black, with white or grey details.</p>
1303     * @see CaptureRequest#CONTROL_EFFECT_MODE
1304     */
1305    public static final int CONTROL_EFFECT_MODE_BLACKBOARD = 7;
1306
1307    /**
1308     * <p>An "aqua" effect where a blue hue is added to the image.</p>
1309     * @see CaptureRequest#CONTROL_EFFECT_MODE
1310     */
1311    public static final int CONTROL_EFFECT_MODE_AQUA = 8;
1312
1313    //
1314    // Enumeration values for CaptureRequest#CONTROL_MODE
1315    //
1316
1317    /**
1318     * <p>Full application control of pipeline.</p>
1319     * <p>All control by the device's metering and focusing (3A)
1320     * routines is disabled, and no other settings in
1321     * android.control.* have any effect, except that
1322     * {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} may be used by the camera
1323     * device to select post-processing values for processing
1324     * blocks that do not allow for manual control, or are not
1325     * exposed by the camera API.</p>
1326     * <p>However, the camera device's 3A routines may continue to
1327     * collect statistics and update their internal state so that
1328     * when control is switched to AUTO mode, good control values
1329     * can be immediately applied.</p>
1330     *
1331     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1332     * @see CaptureRequest#CONTROL_MODE
1333     */
1334    public static final int CONTROL_MODE_OFF = 0;
1335
1336    /**
1337     * <p>Use settings for each individual 3A routine.</p>
1338     * <p>Manual control of capture parameters is disabled. All
1339     * controls in android.control.* besides sceneMode take
1340     * effect.</p>
1341     * @see CaptureRequest#CONTROL_MODE
1342     */
1343    public static final int CONTROL_MODE_AUTO = 1;
1344
1345    /**
1346     * <p>Use a specific scene mode.</p>
1347     * <p>Enabling this disables control.aeMode, control.awbMode and
1348     * control.afMode controls; the camera device will ignore
1349     * those settings while USE_SCENE_MODE is active (except for
1350     * FACE_PRIORITY scene mode). Other control entries are still
1351     * active.  This setting can only be used if scene mode is
1352     * supported (i.e. {@link CameraCharacteristics#CONTROL_AVAILABLE_SCENE_MODES android.control.availableSceneModes}
1353     * contain some modes other than DISABLED).</p>
1354     *
1355     * @see CameraCharacteristics#CONTROL_AVAILABLE_SCENE_MODES
1356     * @see CaptureRequest#CONTROL_MODE
1357     */
1358    public static final int CONTROL_MODE_USE_SCENE_MODE = 2;
1359
1360    /**
1361     * <p>Same as OFF mode, except that this capture will not be
1362     * used by camera device background auto-exposure, auto-white balance and
1363     * auto-focus algorithms (3A) to update their statistics.</p>
1364     * <p>Specifically, the 3A routines are locked to the last
1365     * values set from a request with AUTO, OFF, or
1366     * USE_SCENE_MODE, and any statistics or state updates
1367     * collected from manual captures with OFF_KEEP_STATE will be
1368     * discarded by the camera device.</p>
1369     * @see CaptureRequest#CONTROL_MODE
1370     */
1371    public static final int CONTROL_MODE_OFF_KEEP_STATE = 3;
1372
1373    //
1374    // Enumeration values for CaptureRequest#CONTROL_SCENE_MODE
1375    //
1376
1377    /**
1378     * <p>Indicates that no scene modes are set for a given capture request.</p>
1379     * @see CaptureRequest#CONTROL_SCENE_MODE
1380     */
1381    public static final int CONTROL_SCENE_MODE_DISABLED = 0;
1382
1383    /**
1384     * <p>If face detection support exists, use face
1385     * detection data for auto-focus, auto-white balance, and
1386     * auto-exposure routines.</p>
1387     * <p>If face detection statistics are disabled
1388     * (i.e. {@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} is set to OFF),
1389     * this should still operate correctly (but will not return
1390     * face detection statistics to the framework).</p>
1391     * <p>Unlike the other scene modes, {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode},
1392     * {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode}, and {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}
1393     * remain active when FACE_PRIORITY is set.</p>
1394     *
1395     * @see CaptureRequest#CONTROL_AE_MODE
1396     * @see CaptureRequest#CONTROL_AF_MODE
1397     * @see CaptureRequest#CONTROL_AWB_MODE
1398     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
1399     * @see CaptureRequest#CONTROL_SCENE_MODE
1400     */
1401    public static final int CONTROL_SCENE_MODE_FACE_PRIORITY = 1;
1402
1403    /**
1404     * <p>Optimized for photos of quickly moving objects.</p>
1405     * <p>Similar to SPORTS.</p>
1406     * @see CaptureRequest#CONTROL_SCENE_MODE
1407     */
1408    public static final int CONTROL_SCENE_MODE_ACTION = 2;
1409
1410    /**
1411     * <p>Optimized for still photos of people.</p>
1412     * @see CaptureRequest#CONTROL_SCENE_MODE
1413     */
1414    public static final int CONTROL_SCENE_MODE_PORTRAIT = 3;
1415
1416    /**
1417     * <p>Optimized for photos of distant macroscopic objects.</p>
1418     * @see CaptureRequest#CONTROL_SCENE_MODE
1419     */
1420    public static final int CONTROL_SCENE_MODE_LANDSCAPE = 4;
1421
1422    /**
1423     * <p>Optimized for low-light settings.</p>
1424     * @see CaptureRequest#CONTROL_SCENE_MODE
1425     */
1426    public static final int CONTROL_SCENE_MODE_NIGHT = 5;
1427
1428    /**
1429     * <p>Optimized for still photos of people in low-light
1430     * settings.</p>
1431     * @see CaptureRequest#CONTROL_SCENE_MODE
1432     */
1433    public static final int CONTROL_SCENE_MODE_NIGHT_PORTRAIT = 6;
1434
1435    /**
1436     * <p>Optimized for dim, indoor settings where flash must
1437     * remain off.</p>
1438     * @see CaptureRequest#CONTROL_SCENE_MODE
1439     */
1440    public static final int CONTROL_SCENE_MODE_THEATRE = 7;
1441
1442    /**
1443     * <p>Optimized for bright, outdoor beach settings.</p>
1444     * @see CaptureRequest#CONTROL_SCENE_MODE
1445     */
1446    public static final int CONTROL_SCENE_MODE_BEACH = 8;
1447
1448    /**
1449     * <p>Optimized for bright, outdoor settings containing snow.</p>
1450     * @see CaptureRequest#CONTROL_SCENE_MODE
1451     */
1452    public static final int CONTROL_SCENE_MODE_SNOW = 9;
1453
1454    /**
1455     * <p>Optimized for scenes of the setting sun.</p>
1456     * @see CaptureRequest#CONTROL_SCENE_MODE
1457     */
1458    public static final int CONTROL_SCENE_MODE_SUNSET = 10;
1459
1460    /**
1461     * <p>Optimized to avoid blurry photos due to small amounts of
1462     * device motion (for example: due to hand shake).</p>
1463     * @see CaptureRequest#CONTROL_SCENE_MODE
1464     */
1465    public static final int CONTROL_SCENE_MODE_STEADYPHOTO = 11;
1466
1467    /**
1468     * <p>Optimized for nighttime photos of fireworks.</p>
1469     * @see CaptureRequest#CONTROL_SCENE_MODE
1470     */
1471    public static final int CONTROL_SCENE_MODE_FIREWORKS = 12;
1472
1473    /**
1474     * <p>Optimized for photos of quickly moving people.</p>
1475     * <p>Similar to ACTION.</p>
1476     * @see CaptureRequest#CONTROL_SCENE_MODE
1477     */
1478    public static final int CONTROL_SCENE_MODE_SPORTS = 13;
1479
1480    /**
1481     * <p>Optimized for dim, indoor settings with multiple moving
1482     * people.</p>
1483     * @see CaptureRequest#CONTROL_SCENE_MODE
1484     */
1485    public static final int CONTROL_SCENE_MODE_PARTY = 14;
1486
1487    /**
1488     * <p>Optimized for dim settings where the main light source
1489     * is a flame.</p>
1490     * @see CaptureRequest#CONTROL_SCENE_MODE
1491     */
1492    public static final int CONTROL_SCENE_MODE_CANDLELIGHT = 15;
1493
1494    /**
1495     * <p>Optimized for accurately capturing a photo of barcode
1496     * for use by camera applications that wish to read the
1497     * barcode value.</p>
1498     * @see CaptureRequest#CONTROL_SCENE_MODE
1499     */
1500    public static final int CONTROL_SCENE_MODE_BARCODE = 16;
1501
1502    /**
1503     * <p>Optimized for high speed video recording (frame rate &gt;=60fps) use case.</p>
1504     * <p>The supported high speed video sizes and fps ranges are specified in
1505     * android.control.availableHighSpeedVideoConfigurations. To get desired
1506     * output frame rates, the application is only allowed to select video size
1507     * and fps range combinations listed in this static metadata. The fps range
1508     * can be control via {@link CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE android.control.aeTargetFpsRange}.</p>
1509     * <p>In this mode, the camera device will override aeMode, awbMode, and afMode to
1510     * ON, ON, and CONTINUOUS_VIDEO, respectively. All post-processing block mode
1511     * controls will be overridden to be FAST. Therefore, no manual control of capture
1512     * and post-processing parameters is possible. All other controls operate the
1513     * same as when {@link CaptureRequest#CONTROL_MODE android.control.mode} == AUTO. This means that all other
1514     * android.control.* fields continue to work, such as</p>
1515     * <ul>
1516     * <li>{@link CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE android.control.aeTargetFpsRange}</li>
1517     * <li>{@link CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION android.control.aeExposureCompensation}</li>
1518     * <li>{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock}</li>
1519     * <li>{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock}</li>
1520     * <li>{@link CaptureRequest#CONTROL_EFFECT_MODE android.control.effectMode}</li>
1521     * <li>{@link CaptureRequest#CONTROL_AE_REGIONS android.control.aeRegions}</li>
1522     * <li>{@link CaptureRequest#CONTROL_AF_REGIONS android.control.afRegions}</li>
1523     * <li>{@link CaptureRequest#CONTROL_AWB_REGIONS android.control.awbRegions}</li>
1524     * <li>{@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}</li>
1525     * <li>{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}</li>
1526     * </ul>
1527     * <p>Outside of android.control.*, the following controls will work:</p>
1528     * <ul>
1529     * <li>{@link CaptureRequest#FLASH_MODE android.flash.mode} (automatic flash for still capture will not work since aeMode is ON)</li>
1530     * <li>{@link CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE android.lens.opticalStabilizationMode} (if it is supported)</li>
1531     * <li>{@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion}</li>
1532     * <li>{@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode}</li>
1533     * </ul>
1534     * <p>For high speed recording use case, the actual maximum supported frame rate may
1535     * be lower than what camera can output, depending on the destination Surfaces for
1536     * the image data. For example, if the destination surface is from video encoder,
1537     * the application need check if the video encoder is capable of supporting the
1538     * high frame rate for a given video size, or it will end up with lower recording
1539     * frame rate. If the destination surface is from preview window, the preview frame
1540     * rate will be bounded by the screen refresh rate.</p>
1541     * <p>The camera device will only support up to 2 output high speed streams
1542     * (processed non-stalling format defined in android.request.maxNumOutputStreams)
1543     * in this mode. This control will be effective only if all of below conditions are true:</p>
1544     * <ul>
1545     * <li>The application created no more than maxNumHighSpeedStreams processed non-stalling
1546     * format output streams, where maxNumHighSpeedStreams is calculated as
1547     * min(2, android.request.maxNumOutputStreams[Processed (but not-stalling)]).</li>
1548     * <li>The stream sizes are selected from the sizes reported by
1549     * android.control.availableHighSpeedVideoConfigurations.</li>
1550     * <li>No processed non-stalling or raw streams are configured.</li>
1551     * </ul>
1552     * <p>When above conditions are NOT satistied, the controls of this mode and
1553     * {@link CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE android.control.aeTargetFpsRange} will be ignored by the camera device,
1554     * the camera device will fall back to {@link CaptureRequest#CONTROL_MODE android.control.mode} <code>==</code> AUTO,
1555     * and the returned capture result metadata will give the fps range choosen
1556     * by the camera device.</p>
1557     * <p>Switching into or out of this mode may trigger some camera ISP/sensor
1558     * reconfigurations, which may introduce extra latency. It is recommended that
1559     * the application avoids unnecessary scene mode switch as much as possible.</p>
1560     *
1561     * @see CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION
1562     * @see CaptureRequest#CONTROL_AE_LOCK
1563     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
1564     * @see CaptureRequest#CONTROL_AE_REGIONS
1565     * @see CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE
1566     * @see CaptureRequest#CONTROL_AF_REGIONS
1567     * @see CaptureRequest#CONTROL_AF_TRIGGER
1568     * @see CaptureRequest#CONTROL_AWB_LOCK
1569     * @see CaptureRequest#CONTROL_AWB_REGIONS
1570     * @see CaptureRequest#CONTROL_EFFECT_MODE
1571     * @see CaptureRequest#CONTROL_MODE
1572     * @see CaptureRequest#FLASH_MODE
1573     * @see CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE
1574     * @see CaptureRequest#SCALER_CROP_REGION
1575     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
1576     * @see CaptureRequest#CONTROL_SCENE_MODE
1577     */
1578    public static final int CONTROL_SCENE_MODE_HIGH_SPEED_VIDEO = 17;
1579
1580    /**
1581     * <p>Turn on custom high dynamic range (HDR) mode.</p>
1582     * <p>This is intended for LEGACY mode devices only;
1583     * HAL3+ camera devices should not implement this mode.</p>
1584     * @see CaptureRequest#CONTROL_SCENE_MODE
1585     * @hide
1586     */
1587    public static final int CONTROL_SCENE_MODE_HDR = 18;
1588
1589    //
1590    // Enumeration values for CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE
1591    //
1592
1593    /**
1594     * <p>Video stabilization is disabled.</p>
1595     * @see CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE
1596     */
1597    public static final int CONTROL_VIDEO_STABILIZATION_MODE_OFF = 0;
1598
1599    /**
1600     * <p>Video stabilization is enabled.</p>
1601     * @see CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE
1602     */
1603    public static final int CONTROL_VIDEO_STABILIZATION_MODE_ON = 1;
1604
1605    //
1606    // Enumeration values for CaptureRequest#EDGE_MODE
1607    //
1608
1609    /**
1610     * <p>No edge enhancement is applied.</p>
1611     * @see CaptureRequest#EDGE_MODE
1612     */
1613    public static final int EDGE_MODE_OFF = 0;
1614
1615    /**
1616     * <p>Apply edge enhancement at a quality level that does not slow down frame rate relative to sensor
1617     * output</p>
1618     * @see CaptureRequest#EDGE_MODE
1619     */
1620    public static final int EDGE_MODE_FAST = 1;
1621
1622    /**
1623     * <p>Apply high-quality edge enhancement, at a cost of reducing output frame rate.</p>
1624     * @see CaptureRequest#EDGE_MODE
1625     */
1626    public static final int EDGE_MODE_HIGH_QUALITY = 2;
1627
1628    //
1629    // Enumeration values for CaptureRequest#FLASH_MODE
1630    //
1631
1632    /**
1633     * <p>Do not fire the flash for this capture.</p>
1634     * @see CaptureRequest#FLASH_MODE
1635     */
1636    public static final int FLASH_MODE_OFF = 0;
1637
1638    /**
1639     * <p>If the flash is available and charged, fire flash
1640     * for this capture.</p>
1641     * @see CaptureRequest#FLASH_MODE
1642     */
1643    public static final int FLASH_MODE_SINGLE = 1;
1644
1645    /**
1646     * <p>Transition flash to continuously on.</p>
1647     * @see CaptureRequest#FLASH_MODE
1648     */
1649    public static final int FLASH_MODE_TORCH = 2;
1650
1651    //
1652    // Enumeration values for CaptureRequest#HOT_PIXEL_MODE
1653    //
1654
1655    /**
1656     * <p>No hot pixel correction is applied.</p>
1657     * <p>The frame rate must not be reduced relative to sensor raw output
1658     * for this option.</p>
1659     * <p>The hotpixel map may be returned in {@link CaptureResult#STATISTICS_HOT_PIXEL_MAP android.statistics.hotPixelMap}.</p>
1660     *
1661     * @see CaptureResult#STATISTICS_HOT_PIXEL_MAP
1662     * @see CaptureRequest#HOT_PIXEL_MODE
1663     */
1664    public static final int HOT_PIXEL_MODE_OFF = 0;
1665
1666    /**
1667     * <p>Hot pixel correction is applied, without reducing frame
1668     * rate relative to sensor raw output.</p>
1669     * <p>The hotpixel map may be returned in {@link CaptureResult#STATISTICS_HOT_PIXEL_MAP android.statistics.hotPixelMap}.</p>
1670     *
1671     * @see CaptureResult#STATISTICS_HOT_PIXEL_MAP
1672     * @see CaptureRequest#HOT_PIXEL_MODE
1673     */
1674    public static final int HOT_PIXEL_MODE_FAST = 1;
1675
1676    /**
1677     * <p>High-quality hot pixel correction is applied, at a cost
1678     * of reducing frame rate relative to sensor raw output.</p>
1679     * <p>The hotpixel map may be returned in {@link CaptureResult#STATISTICS_HOT_PIXEL_MAP android.statistics.hotPixelMap}.</p>
1680     *
1681     * @see CaptureResult#STATISTICS_HOT_PIXEL_MAP
1682     * @see CaptureRequest#HOT_PIXEL_MODE
1683     */
1684    public static final int HOT_PIXEL_MODE_HIGH_QUALITY = 2;
1685
1686    //
1687    // Enumeration values for CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE
1688    //
1689
1690    /**
1691     * <p>Optical stabilization is unavailable.</p>
1692     * @see CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE
1693     */
1694    public static final int LENS_OPTICAL_STABILIZATION_MODE_OFF = 0;
1695
1696    /**
1697     * <p>Optical stabilization is enabled.</p>
1698     * @see CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE
1699     */
1700    public static final int LENS_OPTICAL_STABILIZATION_MODE_ON = 1;
1701
1702    //
1703    // Enumeration values for CaptureRequest#NOISE_REDUCTION_MODE
1704    //
1705
1706    /**
1707     * <p>No noise reduction is applied.</p>
1708     * @see CaptureRequest#NOISE_REDUCTION_MODE
1709     */
1710    public static final int NOISE_REDUCTION_MODE_OFF = 0;
1711
1712    /**
1713     * <p>Noise reduction is applied without reducing frame rate relative to sensor
1714     * output.</p>
1715     * @see CaptureRequest#NOISE_REDUCTION_MODE
1716     */
1717    public static final int NOISE_REDUCTION_MODE_FAST = 1;
1718
1719    /**
1720     * <p>High-quality noise reduction is applied, at the cost of reducing frame rate
1721     * relative to sensor output.</p>
1722     * @see CaptureRequest#NOISE_REDUCTION_MODE
1723     */
1724    public static final int NOISE_REDUCTION_MODE_HIGH_QUALITY = 2;
1725
1726    //
1727    // Enumeration values for CaptureRequest#SENSOR_TEST_PATTERN_MODE
1728    //
1729
1730    /**
1731     * <p>No test pattern mode is used, and the camera
1732     * device returns captures from the image sensor.</p>
1733     * <p>This is the default if the key is not set.</p>
1734     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
1735     */
1736    public static final int SENSOR_TEST_PATTERN_MODE_OFF = 0;
1737
1738    /**
1739     * <p>Each pixel in <code>[R, G_even, G_odd, B]</code> is replaced by its
1740     * respective color channel provided in
1741     * {@link CaptureRequest#SENSOR_TEST_PATTERN_DATA android.sensor.testPatternData}.</p>
1742     * <p>For example:</p>
1743     * <pre><code>android.testPatternData = [0, 0xFFFFFFFF, 0xFFFFFFFF, 0]
1744     * </code></pre>
1745     * <p>All green pixels are 100% green. All red/blue pixels are black.</p>
1746     * <pre><code>android.testPatternData = [0xFFFFFFFF, 0, 0xFFFFFFFF, 0]
1747     * </code></pre>
1748     * <p>All red pixels are 100% red. Only the odd green pixels
1749     * are 100% green. All blue pixels are 100% black.</p>
1750     *
1751     * @see CaptureRequest#SENSOR_TEST_PATTERN_DATA
1752     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
1753     */
1754    public static final int SENSOR_TEST_PATTERN_MODE_SOLID_COLOR = 1;
1755
1756    /**
1757     * <p>All pixel data is replaced with an 8-bar color pattern.</p>
1758     * <p>The vertical bars (left-to-right) are as follows:</p>
1759     * <ul>
1760     * <li>100% white</li>
1761     * <li>yellow</li>
1762     * <li>cyan</li>
1763     * <li>green</li>
1764     * <li>magenta</li>
1765     * <li>red</li>
1766     * <li>blue</li>
1767     * <li>black</li>
1768     * </ul>
1769     * <p>In general the image would look like the following:</p>
1770     * <pre><code>W Y C G M R B K
1771     * W Y C G M R B K
1772     * W Y C G M R B K
1773     * W Y C G M R B K
1774     * W Y C G M R B K
1775     * . . . . . . . .
1776     * . . . . . . . .
1777     * . . . . . . . .
1778     *
1779     * (B = Blue, K = Black)
1780     * </code></pre>
1781     * <p>Each bar should take up 1/8 of the sensor pixel array width.
1782     * When this is not possible, the bar size should be rounded
1783     * down to the nearest integer and the pattern can repeat
1784     * on the right side.</p>
1785     * <p>Each bar's height must always take up the full sensor
1786     * pixel array height.</p>
1787     * <p>Each pixel in this test pattern must be set to either
1788     * 0% intensity or 100% intensity.</p>
1789     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
1790     */
1791    public static final int SENSOR_TEST_PATTERN_MODE_COLOR_BARS = 2;
1792
1793    /**
1794     * <p>The test pattern is similar to COLOR_BARS, except that
1795     * each bar should start at its specified color at the top,
1796     * and fade to gray at the bottom.</p>
1797     * <p>Furthermore each bar is further subdivided into a left and
1798     * right half. The left half should have a smooth gradient,
1799     * and the right half should have a quantized gradient.</p>
1800     * <p>In particular, the right half's should consist of blocks of the
1801     * same color for 1/16th active sensor pixel array width.</p>
1802     * <p>The least significant bits in the quantized gradient should
1803     * be copied from the most significant bits of the smooth gradient.</p>
1804     * <p>The height of each bar should always be a multiple of 128.
1805     * When this is not the case, the pattern should repeat at the bottom
1806     * of the image.</p>
1807     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
1808     */
1809    public static final int SENSOR_TEST_PATTERN_MODE_COLOR_BARS_FADE_TO_GRAY = 3;
1810
1811    /**
1812     * <p>All pixel data is replaced by a pseudo-random sequence
1813     * generated from a PN9 512-bit sequence (typically implemented
1814     * in hardware with a linear feedback shift register).</p>
1815     * <p>The generator should be reset at the beginning of each frame,
1816     * and thus each subsequent raw frame with this test pattern should
1817     * be exactly the same as the last.</p>
1818     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
1819     */
1820    public static final int SENSOR_TEST_PATTERN_MODE_PN9 = 4;
1821
1822    /**
1823     * <p>The first custom test pattern. All custom patterns that are
1824     * available only on this camera device are at least this numeric
1825     * value.</p>
1826     * <p>All of the custom test patterns will be static
1827     * (that is the raw image must not vary from frame to frame).</p>
1828     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
1829     */
1830    public static final int SENSOR_TEST_PATTERN_MODE_CUSTOM1 = 256;
1831
1832    //
1833    // Enumeration values for CaptureRequest#SHADING_MODE
1834    //
1835
1836    /**
1837     * <p>No lens shading correction is applied.</p>
1838     * @see CaptureRequest#SHADING_MODE
1839     */
1840    public static final int SHADING_MODE_OFF = 0;
1841
1842    /**
1843     * <p>Apply lens shading corrections, without slowing
1844     * frame rate relative to sensor raw output</p>
1845     * @see CaptureRequest#SHADING_MODE
1846     */
1847    public static final int SHADING_MODE_FAST = 1;
1848
1849    /**
1850     * <p>Apply high-quality lens shading correction, at the
1851     * cost of reduced frame rate.</p>
1852     * @see CaptureRequest#SHADING_MODE
1853     */
1854    public static final int SHADING_MODE_HIGH_QUALITY = 2;
1855
1856    //
1857    // Enumeration values for CaptureRequest#STATISTICS_FACE_DETECT_MODE
1858    //
1859
1860    /**
1861     * <p>Do not include face detection statistics in capture
1862     * results.</p>
1863     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
1864     */
1865    public static final int STATISTICS_FACE_DETECT_MODE_OFF = 0;
1866
1867    /**
1868     * <p>Return face rectangle and confidence values only.</p>
1869     * <p>In this mode, only android.statistics.faceRectangles and
1870     * android.statistics.faceScores outputs are valid.</p>
1871     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
1872     */
1873    public static final int STATISTICS_FACE_DETECT_MODE_SIMPLE = 1;
1874
1875    /**
1876     * <p>Return all face
1877     * metadata.</p>
1878     * <p>In this mode,
1879     * android.statistics.faceRectangles,
1880     * android.statistics.faceScores,
1881     * android.statistics.faceIds, and
1882     * android.statistics.faceLandmarks outputs are valid.</p>
1883     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
1884     */
1885    public static final int STATISTICS_FACE_DETECT_MODE_FULL = 2;
1886
1887    //
1888    // Enumeration values for CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE
1889    //
1890
1891    /**
1892     * <p>Do not include a lens shading map in the capture result.</p>
1893     * @see CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE
1894     */
1895    public static final int STATISTICS_LENS_SHADING_MAP_MODE_OFF = 0;
1896
1897    /**
1898     * <p>Include a lens shading map in the capture result.</p>
1899     * @see CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE
1900     */
1901    public static final int STATISTICS_LENS_SHADING_MAP_MODE_ON = 1;
1902
1903    //
1904    // Enumeration values for CaptureRequest#TONEMAP_MODE
1905    //
1906
1907    /**
1908     * <p>Use the tone mapping curve specified in
1909     * the {@link CaptureRequest#TONEMAP_CURVE android.tonemap.curve}* entries.</p>
1910     * <p>All color enhancement and tonemapping must be disabled, except
1911     * for applying the tonemapping curve specified by
1912     * {@link CaptureRequest#TONEMAP_CURVE android.tonemap.curve}.</p>
1913     * <p>Must not slow down frame rate relative to raw
1914     * sensor output.</p>
1915     *
1916     * @see CaptureRequest#TONEMAP_CURVE
1917     * @see CaptureRequest#TONEMAP_MODE
1918     */
1919    public static final int TONEMAP_MODE_CONTRAST_CURVE = 0;
1920
1921    /**
1922     * <p>Advanced gamma mapping and color enhancement may be applied, without
1923     * reducing frame rate compared to raw sensor output.</p>
1924     * @see CaptureRequest#TONEMAP_MODE
1925     */
1926    public static final int TONEMAP_MODE_FAST = 1;
1927
1928    /**
1929     * <p>High-quality gamma mapping and color enhancement will be applied, at
1930     * the cost of reduced frame rate compared to raw sensor output.</p>
1931     * @see CaptureRequest#TONEMAP_MODE
1932     */
1933    public static final int TONEMAP_MODE_HIGH_QUALITY = 2;
1934
1935    //
1936    // Enumeration values for CaptureResult#CONTROL_AE_STATE
1937    //
1938
1939    /**
1940     * <p>AE is off or recently reset.</p>
1941     * <p>When a camera device is opened, it starts in
1942     * this state. This is a transient state, the camera device may skip reporting
1943     * this state in capture result.</p>
1944     * @see CaptureResult#CONTROL_AE_STATE
1945     */
1946    public static final int CONTROL_AE_STATE_INACTIVE = 0;
1947
1948    /**
1949     * <p>AE doesn't yet have a good set of control values
1950     * for the current scene.</p>
1951     * <p>This is a transient state, the camera device may skip
1952     * reporting this state in capture result.</p>
1953     * @see CaptureResult#CONTROL_AE_STATE
1954     */
1955    public static final int CONTROL_AE_STATE_SEARCHING = 1;
1956
1957    /**
1958     * <p>AE has a good set of control values for the
1959     * current scene.</p>
1960     * @see CaptureResult#CONTROL_AE_STATE
1961     */
1962    public static final int CONTROL_AE_STATE_CONVERGED = 2;
1963
1964    /**
1965     * <p>AE has been locked.</p>
1966     * @see CaptureResult#CONTROL_AE_STATE
1967     */
1968    public static final int CONTROL_AE_STATE_LOCKED = 3;
1969
1970    /**
1971     * <p>AE has a good set of control values, but flash
1972     * needs to be fired for good quality still
1973     * capture.</p>
1974     * @see CaptureResult#CONTROL_AE_STATE
1975     */
1976    public static final int CONTROL_AE_STATE_FLASH_REQUIRED = 4;
1977
1978    /**
1979     * <p>AE has been asked to do a precapture sequence
1980     * and is currently executing it.</p>
1981     * <p>Precapture can be triggered through setting
1982     * {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} to START.</p>
1983     * <p>Once PRECAPTURE completes, AE will transition to CONVERGED
1984     * or FLASH_REQUIRED as appropriate. This is a transient
1985     * state, the camera device may skip reporting this state in
1986     * capture result.</p>
1987     *
1988     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
1989     * @see CaptureResult#CONTROL_AE_STATE
1990     */
1991    public static final int CONTROL_AE_STATE_PRECAPTURE = 5;
1992
1993    //
1994    // Enumeration values for CaptureResult#CONTROL_AF_STATE
1995    //
1996
1997    /**
1998     * <p>AF is off or has not yet tried to scan/been asked
1999     * to scan.</p>
2000     * <p>When a camera device is opened, it starts in this
2001     * state. This is a transient state, the camera device may
2002     * skip reporting this state in capture
2003     * result.</p>
2004     * @see CaptureResult#CONTROL_AF_STATE
2005     */
2006    public static final int CONTROL_AF_STATE_INACTIVE = 0;
2007
2008    /**
2009     * <p>AF is currently performing an AF scan initiated the
2010     * camera device in a continuous autofocus mode.</p>
2011     * <p>Only used by CONTINUOUS_* AF modes. This is a transient
2012     * state, the camera device may skip reporting this state in
2013     * capture result.</p>
2014     * @see CaptureResult#CONTROL_AF_STATE
2015     */
2016    public static final int CONTROL_AF_STATE_PASSIVE_SCAN = 1;
2017
2018    /**
2019     * <p>AF currently believes it is in focus, but may
2020     * restart scanning at any time.</p>
2021     * <p>Only used by CONTINUOUS_* AF modes. This is a transient
2022     * state, the camera device may skip reporting this state in
2023     * capture result.</p>
2024     * @see CaptureResult#CONTROL_AF_STATE
2025     */
2026    public static final int CONTROL_AF_STATE_PASSIVE_FOCUSED = 2;
2027
2028    /**
2029     * <p>AF is performing an AF scan because it was
2030     * triggered by AF trigger.</p>
2031     * <p>Only used by AUTO or MACRO AF modes. This is a transient
2032     * state, the camera device may skip reporting this state in
2033     * capture result.</p>
2034     * @see CaptureResult#CONTROL_AF_STATE
2035     */
2036    public static final int CONTROL_AF_STATE_ACTIVE_SCAN = 3;
2037
2038    /**
2039     * <p>AF believes it is focused correctly and has locked
2040     * focus.</p>
2041     * <p>This state is reached only after an explicit START AF trigger has been
2042     * sent ({@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}), when good focus has been obtained.</p>
2043     * <p>The lens will remain stationary until the AF mode ({@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}) is changed or
2044     * a new AF trigger is sent to the camera device ({@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}).</p>
2045     *
2046     * @see CaptureRequest#CONTROL_AF_MODE
2047     * @see CaptureRequest#CONTROL_AF_TRIGGER
2048     * @see CaptureResult#CONTROL_AF_STATE
2049     */
2050    public static final int CONTROL_AF_STATE_FOCUSED_LOCKED = 4;
2051
2052    /**
2053     * <p>AF has failed to focus successfully and has locked
2054     * focus.</p>
2055     * <p>This state is reached only after an explicit START AF trigger has been
2056     * sent ({@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}), when good focus cannot be obtained.</p>
2057     * <p>The lens will remain stationary until the AF mode ({@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}) is changed or
2058     * a new AF trigger is sent to the camera device ({@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}).</p>
2059     *
2060     * @see CaptureRequest#CONTROL_AF_MODE
2061     * @see CaptureRequest#CONTROL_AF_TRIGGER
2062     * @see CaptureResult#CONTROL_AF_STATE
2063     */
2064    public static final int CONTROL_AF_STATE_NOT_FOCUSED_LOCKED = 5;
2065
2066    /**
2067     * <p>AF finished a passive scan without finding focus,
2068     * and may restart scanning at any time.</p>
2069     * <p>Only used by CONTINUOUS_* AF modes. This is a transient state, the camera
2070     * device may skip reporting this state in capture result.</p>
2071     * <p>LEGACY camera devices do not support this state. When a passive
2072     * scan has finished, it will always go to PASSIVE_FOCUSED.</p>
2073     * @see CaptureResult#CONTROL_AF_STATE
2074     */
2075    public static final int CONTROL_AF_STATE_PASSIVE_UNFOCUSED = 6;
2076
2077    //
2078    // Enumeration values for CaptureResult#CONTROL_AWB_STATE
2079    //
2080
2081    /**
2082     * <p>AWB is not in auto mode, or has not yet started metering.</p>
2083     * <p>When a camera device is opened, it starts in this
2084     * state. This is a transient state, the camera device may
2085     * skip reporting this state in capture
2086     * result.</p>
2087     * @see CaptureResult#CONTROL_AWB_STATE
2088     */
2089    public static final int CONTROL_AWB_STATE_INACTIVE = 0;
2090
2091    /**
2092     * <p>AWB doesn't yet have a good set of control
2093     * values for the current scene.</p>
2094     * <p>This is a transient state, the camera device
2095     * may skip reporting this state in capture result.</p>
2096     * @see CaptureResult#CONTROL_AWB_STATE
2097     */
2098    public static final int CONTROL_AWB_STATE_SEARCHING = 1;
2099
2100    /**
2101     * <p>AWB has a good set of control values for the
2102     * current scene.</p>
2103     * @see CaptureResult#CONTROL_AWB_STATE
2104     */
2105    public static final int CONTROL_AWB_STATE_CONVERGED = 2;
2106
2107    /**
2108     * <p>AWB has been locked.</p>
2109     * @see CaptureResult#CONTROL_AWB_STATE
2110     */
2111    public static final int CONTROL_AWB_STATE_LOCKED = 3;
2112
2113    //
2114    // Enumeration values for CaptureResult#FLASH_STATE
2115    //
2116
2117    /**
2118     * <p>No flash on camera.</p>
2119     * @see CaptureResult#FLASH_STATE
2120     */
2121    public static final int FLASH_STATE_UNAVAILABLE = 0;
2122
2123    /**
2124     * <p>Flash is charging and cannot be fired.</p>
2125     * @see CaptureResult#FLASH_STATE
2126     */
2127    public static final int FLASH_STATE_CHARGING = 1;
2128
2129    /**
2130     * <p>Flash is ready to fire.</p>
2131     * @see CaptureResult#FLASH_STATE
2132     */
2133    public static final int FLASH_STATE_READY = 2;
2134
2135    /**
2136     * <p>Flash fired for this capture.</p>
2137     * @see CaptureResult#FLASH_STATE
2138     */
2139    public static final int FLASH_STATE_FIRED = 3;
2140
2141    /**
2142     * <p>Flash partially illuminated this frame.</p>
2143     * <p>This is usually due to the next or previous frame having
2144     * the flash fire, and the flash spilling into this capture
2145     * due to hardware limitations.</p>
2146     * @see CaptureResult#FLASH_STATE
2147     */
2148    public static final int FLASH_STATE_PARTIAL = 4;
2149
2150    //
2151    // Enumeration values for CaptureResult#LENS_STATE
2152    //
2153
2154    /**
2155     * <p>The lens parameters ({@link CaptureRequest#LENS_FOCAL_LENGTH android.lens.focalLength}, {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance},
2156     * {@link CaptureRequest#LENS_FILTER_DENSITY android.lens.filterDensity} and {@link CaptureRequest#LENS_APERTURE android.lens.aperture}) are not changing.</p>
2157     *
2158     * @see CaptureRequest#LENS_APERTURE
2159     * @see CaptureRequest#LENS_FILTER_DENSITY
2160     * @see CaptureRequest#LENS_FOCAL_LENGTH
2161     * @see CaptureRequest#LENS_FOCUS_DISTANCE
2162     * @see CaptureResult#LENS_STATE
2163     */
2164    public static final int LENS_STATE_STATIONARY = 0;
2165
2166    /**
2167     * <p>One or several of the lens parameters
2168     * ({@link CaptureRequest#LENS_FOCAL_LENGTH android.lens.focalLength}, {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance},
2169     * {@link CaptureRequest#LENS_FILTER_DENSITY android.lens.filterDensity} or {@link CaptureRequest#LENS_APERTURE android.lens.aperture}) is
2170     * currently changing.</p>
2171     *
2172     * @see CaptureRequest#LENS_APERTURE
2173     * @see CaptureRequest#LENS_FILTER_DENSITY
2174     * @see CaptureRequest#LENS_FOCAL_LENGTH
2175     * @see CaptureRequest#LENS_FOCUS_DISTANCE
2176     * @see CaptureResult#LENS_STATE
2177     */
2178    public static final int LENS_STATE_MOVING = 1;
2179
2180    //
2181    // Enumeration values for CaptureResult#STATISTICS_SCENE_FLICKER
2182    //
2183
2184    /**
2185     * <p>The camera device does not detect any flickering illumination
2186     * in the current scene.</p>
2187     * @see CaptureResult#STATISTICS_SCENE_FLICKER
2188     */
2189    public static final int STATISTICS_SCENE_FLICKER_NONE = 0;
2190
2191    /**
2192     * <p>The camera device detects illumination flickering at 50Hz
2193     * in the current scene.</p>
2194     * @see CaptureResult#STATISTICS_SCENE_FLICKER
2195     */
2196    public static final int STATISTICS_SCENE_FLICKER_50HZ = 1;
2197
2198    /**
2199     * <p>The camera device detects illumination flickering at 60Hz
2200     * in the current scene.</p>
2201     * @see CaptureResult#STATISTICS_SCENE_FLICKER
2202     */
2203    public static final int STATISTICS_SCENE_FLICKER_60HZ = 2;
2204
2205    //
2206    // Enumeration values for CaptureResult#SYNC_FRAME_NUMBER
2207    //
2208
2209    /**
2210     * <p>The current result is not yet fully synchronized to any request.</p>
2211     * <p>Synchronization is in progress, and reading metadata from this
2212     * result may include a mix of data that have taken effect since the
2213     * last synchronization time.</p>
2214     * <p>In some future result, within {@link CameraCharacteristics#SYNC_MAX_LATENCY android.sync.maxLatency} frames,
2215     * this value will update to the actual frame number frame number
2216     * the result is guaranteed to be synchronized to (as long as the
2217     * request settings remain constant).</p>
2218     *
2219     * @see CameraCharacteristics#SYNC_MAX_LATENCY
2220     * @see CaptureResult#SYNC_FRAME_NUMBER
2221     * @hide
2222     */
2223    public static final int SYNC_FRAME_NUMBER_CONVERGING = -1;
2224
2225    /**
2226     * <p>The current result's synchronization status is unknown.</p>
2227     * <p>The result may have already converged, or it may be in
2228     * progress.  Reading from this result may include some mix
2229     * of settings from past requests.</p>
2230     * <p>After a settings change, the new settings will eventually all
2231     * take effect for the output buffers and results. However, this
2232     * value will not change when that happens. Altering settings
2233     * rapidly may provide outcomes using mixes of settings from recent
2234     * requests.</p>
2235     * <p>This value is intended primarily for backwards compatibility with
2236     * the older camera implementations (for android.hardware.Camera).</p>
2237     * @see CaptureResult#SYNC_FRAME_NUMBER
2238     * @hide
2239     */
2240    public static final int SYNC_FRAME_NUMBER_UNKNOWN = -2;
2241
2242    /*~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
2243     * End generated code
2244     *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~O@*/
2245
2246}
2247