CameraMetadata.java revision e040418f4779c37aa9df69a3916d376af9d2e868 
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.util.Log;
20
21import java.lang.reflect.Field;
22import java.lang.reflect.Modifier;
23import java.util.ArrayList;
24import java.util.Collections;
25import java.util.List;
26
27/**
28 * The base class for camera controls and information.
29 *
30 * <p>
31 * This class defines the basic key/value map used for querying for camera
32 * characteristics or capture results, and for setting camera request
33 * parameters.
34 * </p>
35 *
36 * <p>
37 * All instances of CameraMetadata are immutable. The list of keys with {@link #getKeys()}
38 * never changes, nor do the values returned by any key with {@code #get} throughout
39 * the lifetime of the object.
40 * </p>
41 *
42 * @see CameraDevice
43 * @see CameraManager
44 * @see CameraCharacteristics
45 **/
46public abstract class CameraMetadata<TKey> {
47
48    private static final String TAG = "CameraMetadataAb";
49    private static final boolean VERBOSE = false;
50
51    /**
52     * Set a camera metadata field to a value. The field definitions can be
53     * found in {@link CameraCharacteristics}, {@link CaptureResult}, and
54     * {@link CaptureRequest}.
55     *
56     * @param key The metadata field to write.
57     * @param value The value to set the field to, which must be of a matching
58     * type to the key.
59     *
60     * @hide
61     */
62    protected CameraMetadata() {
63    }
64
65    /**
66     * Get a camera metadata field value.
67     *
68     * <p>The field definitions can be
69     * found in {@link CameraCharacteristics}, {@link CaptureResult}, and
70     * {@link CaptureRequest}.</p>
71     *
72     * <p>Querying the value for the same key more than once will return a value
73     * which is equal to the previous queried value.</p>
74     *
75     * @throws IllegalArgumentException if the key was not valid
76     *
77     * @param key The metadata field to read.
78     * @return The value of that key, or {@code null} if the field is not set.
79     *
80     * @hide
81     */
82     protected abstract <T> T getProtected(TKey key);
83
84     /**
85      * @hide
86      */
87     protected abstract Class<TKey> getKeyClass();
88
89    /**
90     * Returns a list of the keys contained in this map.
91     *
92     * <p>The list returned is not modifiable, so any attempts to modify it will throw
93     * a {@code UnsupportedOperationException}.</p>
94     *
95     * <p>All values retrieved by a key from this list with {@code #get} are guaranteed to be
96     * non-{@code null}. Each key is only listed once in the list. The order of the keys
97     * is undefined.</p>
98     *
99     * @return List of the keys contained in this map.
100     */
101    @SuppressWarnings("unchecked")
102    public List<TKey> getKeys() {
103        Class<CameraMetadata<TKey>> thisClass = (Class<CameraMetadata<TKey>>) getClass();
104        return Collections.unmodifiableList(getKeysStatic(thisClass, getKeyClass(), this));
105    }
106
107    /**
108     * Return a list of all the Key<?> that are declared as a field inside of the class
109     * {@code type}.
110     *
111     * <p>
112     * Optionally, if {@code instance} is not null, then filter out any keys with null values.
113     * </p>
114     */
115     /*package*/ @SuppressWarnings("unchecked")
116    static <TKey> ArrayList<TKey> getKeysStatic(
117             Class<?> type, Class<TKey> keyClass,
118             CameraMetadata<TKey> instance) {
119
120        if (VERBOSE) Log.v(TAG, "getKeysStatic for " + type);
121
122        ArrayList<TKey> keyList = new ArrayList<TKey>();
123
124        Field[] fields = type.getDeclaredFields();
125        for (Field field : fields) {
126            // Filter for Keys that are public
127            if (field.getType().isAssignableFrom(keyClass) &&
128                    (field.getModifiers() & Modifier.PUBLIC) != 0) {
129
130                TKey key;
131                try {
132                    key = (TKey) field.get(instance);
133                } catch (IllegalAccessException e) {
134                    throw new AssertionError("Can't get IllegalAccessException", e);
135                } catch (IllegalArgumentException e) {
136                    throw new AssertionError("Can't get IllegalArgumentException", e);
137                }
138
139                if (instance == null || instance.getProtected(key) != null) {
140                    keyList.add(key);
141                }
142            }
143        }
144
145        return keyList;
146    }
147
148    /*@O~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
149     * The enum values below this point are generated from metadata
150     * definitions in /system/media/camera/docs. Do not modify by hand or
151     * modify the comment blocks at the start or end.
152     *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~*/
153
154    //
155    // Enumeration values for CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION
156    //
157
158    /**
159     * <p>The lens focus distance is not accurate, and the units used for
160     * {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance} do not correspond to any physical units.</p>
161     * <p>Setting the lens to the same focus distance on separate occasions may
162     * result in a different real focus distance, depending on factors such
163     * as the orientation of the device, the age of the focusing mechanism,
164     * and the device temperature. The focus distance value will still be
165     * in the range of <code>[0, {@link CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance}]</code>, where 0
166     * represents the farthest focus.</p>
167     *
168     * @see CaptureRequest#LENS_FOCUS_DISTANCE
169     * @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE
170     * @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION
171     */
172    public static final int LENS_INFO_FOCUS_DISTANCE_CALIBRATION_UNCALIBRATED = 0;
173
174    /**
175     * <p>The lens focus distance is measured in diopters.</p>
176     * <p>However, setting the lens to the same focus distance
177     * on separate occasions may result in a different real
178     * focus distance, depending on factors such as the
179     * orientation of the device, the age of the focusing
180     * mechanism, and the device temperature.</p>
181     * @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION
182     */
183    public static final int LENS_INFO_FOCUS_DISTANCE_CALIBRATION_APPROXIMATE = 1;
184
185    /**
186     * <p>The lens focus distance is measured in diopters, and
187     * is calibrated.</p>
188     * <p>The lens mechanism is calibrated so that setting the
189     * same focus distance is repeatable on multiple
190     * occasions with good accuracy, and the focus distance
191     * corresponds to the real physical distance to the plane
192     * of best focus.</p>
193     * @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION
194     */
195    public static final int LENS_INFO_FOCUS_DISTANCE_CALIBRATION_CALIBRATED = 2;
196
197    //
198    // Enumeration values for CameraCharacteristics#LENS_FACING
199    //
200
201    /**
202     * <p>The camera device faces the same direction as the device's screen.</p>
203     * @see CameraCharacteristics#LENS_FACING
204     */
205    public static final int LENS_FACING_FRONT = 0;
206
207    /**
208     * <p>The camera device faces the opposite direction as the device's screen.</p>
209     * @see CameraCharacteristics#LENS_FACING
210     */
211    public static final int LENS_FACING_BACK = 1;
212
213    //
214    // Enumeration values for CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
215    //
216
217    /**
218     * <p>The minimal set of capabilities that every camera
219     * device (regardless of {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel})
220     * will support.</p>
221     * <p>The full set of features supported by this capability makes
222     * the camera2 api backwards compatible with the camera1
223     * (android.hardware.Camera) API.</p>
224     *
225     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
226     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
227     * @hide
228     */
229    public static final int REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE = 0;
230
231    /**
232     * <p>This is a catch-all capability to include all other
233     * tags or functionality not encapsulated by one of the other
234     * capabilities.</p>
235     * <p>A typical example is all tags marked 'optional'.</p>
236     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
237     * @hide
238     */
239    public static final int REQUEST_AVAILABLE_CAPABILITIES_OPTIONAL = 1;
240
241    /**
242     * <p>The camera device can be manually controlled (3A algorithms such
243     * as auto-exposure, and auto-focus can be bypassed).
244     * The camera device supports basic manual control of the sensor image
245     * acquisition related stages. This means the following controls are
246     * guaranteed to be supported:</p>
247     * <ul>
248     * <li>Manual frame duration control<ul>
249     * <li>{@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration}</li>
250     * <li>{@link CameraCharacteristics#SENSOR_INFO_MAX_FRAME_DURATION android.sensor.info.maxFrameDuration}</li>
251     * </ul>
252     * </li>
253     * <li>Manual exposure control<ul>
254     * <li>{@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}</li>
255     * <li>{@link CameraCharacteristics#SENSOR_INFO_EXPOSURE_TIME_RANGE android.sensor.info.exposureTimeRange}</li>
256     * </ul>
257     * </li>
258     * <li>Manual sensitivity control<ul>
259     * <li>{@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}</li>
260     * <li>{@link CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE android.sensor.info.sensitivityRange}</li>
261     * </ul>
262     * </li>
263     * <li>Manual lens control (if the lens is adjustable)<ul>
264     * <li>android.lens.*</li>
265     * </ul>
266     * </li>
267     * <li>Manual flash control (if a flash unit is present)<ul>
268     * <li>android.flash.*</li>
269     * </ul>
270     * </li>
271     * <li>Manual black level locking<ul>
272     * <li>{@link CaptureRequest#BLACK_LEVEL_LOCK android.blackLevel.lock}</li>
273     * </ul>
274     * </li>
275     * </ul>
276     * <p>If any of the above 3A algorithms are enabled, then the camera
277     * device will accurately report the values applied by 3A in the
278     * result.</p>
279     * <p>A given camera device may also support additional manual sensor controls,
280     * but this capability only covers the above list of controls.</p>
281     * <p>If this is supported, {@link CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap} will
282     * additionally return a min frame duration that is greater than
283     * zero for each supported size-format combination.</p>
284     *
285     * @see CaptureRequest#BLACK_LEVEL_LOCK
286     * @see CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP
287     * @see CaptureRequest#SENSOR_EXPOSURE_TIME
288     * @see CaptureRequest#SENSOR_FRAME_DURATION
289     * @see CameraCharacteristics#SENSOR_INFO_EXPOSURE_TIME_RANGE
290     * @see CameraCharacteristics#SENSOR_INFO_MAX_FRAME_DURATION
291     * @see CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE
292     * @see CaptureRequest#SENSOR_SENSITIVITY
293     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
294     */
295    public static final int REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR = 2;
296
297    /**
298     * <p>The camera device post-processing stages can be manually controlled.
299     * The camera device supports basic manual control of the image post-processing
300     * stages. This means the following controls are guaranteed to be supported:</p>
301     * <ul>
302     * <li>Manual tonemap control<ul>
303     * <li>{@link CaptureRequest#TONEMAP_CURVE android.tonemap.curve}</li>
304     * <li>{@link CaptureRequest#TONEMAP_MODE android.tonemap.mode}</li>
305     * <li>{@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}</li>
306     * </ul>
307     * </li>
308     * <li>Manual white balance control<ul>
309     * <li>{@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}</li>
310     * <li>{@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains}</li>
311     * </ul>
312     * </li>
313     * <li>Manual lens shading map control<ul>
314     * <li>{@link CaptureRequest#SHADING_MODE android.shading.mode}</li>
315     * <li>{@link CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE android.statistics.lensShadingMapMode}</li>
316     * <li>android.statistics.lensShadingMap</li>
317     * <li>android.lens.info.shadingMapSize</li>
318     * </ul>
319     * </li>
320     * </ul>
321     * <p>If auto white balance is enabled, then the camera device
322     * will accurately report the values applied by AWB in the result.</p>
323     * <p>A given camera device may also support additional post-processing
324     * controls, but this capability only covers the above list of controls.</p>
325     *
326     * @see CaptureRequest#COLOR_CORRECTION_GAINS
327     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
328     * @see CaptureRequest#SHADING_MODE
329     * @see CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE
330     * @see CaptureRequest#TONEMAP_CURVE
331     * @see CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS
332     * @see CaptureRequest#TONEMAP_MODE
333     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
334     */
335    public static final int REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING = 3;
336
337    /**
338     * <p>The camera device supports the Zero Shutter Lag use case.</p>
339     * <ul>
340     * <li>At least one input stream can be used.</li>
341     * <li>RAW_OPAQUE is supported as an output/input format</li>
342     * <li>Using RAW_OPAQUE does not cause a frame rate drop
343     * relative to the sensor's maximum capture rate (at that
344     * resolution).</li>
345     * <li>RAW_OPAQUE will be reprocessable into both YUV_420_888
346     * and JPEG formats.</li>
347     * <li>The maximum available resolution for RAW_OPAQUE streams
348     * (both input/output) will match the maximum available
349     * resolution of JPEG streams.</li>
350     * </ul>
351     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
352     * @hide
353     */
354    public static final int REQUEST_AVAILABLE_CAPABILITIES_ZSL = 4;
355
356    /**
357     * <p>The camera device supports outputting RAW buffers that can be
358     * saved offline into a DNG format. It can reprocess DNG
359     * files (produced from the same camera device) back into YUV.</p>
360     * <ul>
361     * <li>At least one input stream can be used.</li>
362     * <li>RAW16 is supported as output/input format.</li>
363     * <li>RAW16 is reprocessable into both YUV_420_888 and JPEG
364     * formats.</li>
365     * <li>The maximum available resolution for RAW16 streams (both
366     * input/output) will match either the value in
367     * {@link CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE android.sensor.info.pixelArraySize} or
368     * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.</li>
369     * <li>All DNG-related optional metadata entries are provided
370     * by the camera device.</li>
371     * </ul>
372     *
373     * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE
374     * @see CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE
375     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
376     */
377    public static final int REQUEST_AVAILABLE_CAPABILITIES_DNG = 5;
378
379    //
380    // Enumeration values for CameraCharacteristics#SCALER_CROPPING_TYPE
381    //
382
383    /**
384     * <p>The camera device only supports centered crop regions.</p>
385     * @see CameraCharacteristics#SCALER_CROPPING_TYPE
386     */
387    public static final int SCALER_CROPPING_TYPE_CENTER_ONLY = 0;
388
389    /**
390     * <p>The camera device supports arbitrarily chosen crop regions.</p>
391     * @see CameraCharacteristics#SCALER_CROPPING_TYPE
392     */
393    public static final int SCALER_CROPPING_TYPE_FREEFORM = 1;
394
395    //
396    // Enumeration values for CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
397    //
398
399    /**
400     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
401     */
402    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGGB = 0;
403
404    /**
405     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
406     */
407    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GRBG = 1;
408
409    /**
410     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
411     */
412    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GBRG = 2;
413
414    /**
415     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
416     */
417    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_BGGR = 3;
418
419    /**
420     * <p>Sensor is not Bayer; output has 3 16-bit
421     * values for each pixel, instead of just 1 16-bit value
422     * per pixel.</p>
423     * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
424     */
425    public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGB = 4;
426
427    //
428    // Enumeration values for CameraCharacteristics#SENSOR_INFO_TIMESTAMP_CALIBRATION
429    //
430
431    /**
432     * <p>Timestamps from {@link CaptureResult#SENSOR_TIMESTAMP android.sensor.timestamp} are in nanoseconds and monotonic,
433     * but can not be compared to timestamps from other subsystems
434     * (e.g. accelerometer, gyro etc.), or other instances of the same or different
435     * camera devices in the same system. Timestamps between streams and results for
436     * a single camera instance are comparable, and the timestamps for all buffers
437     * and the result metadata generated by a single capture are identical.</p>
438     *
439     * @see CaptureResult#SENSOR_TIMESTAMP
440     * @see CameraCharacteristics#SENSOR_INFO_TIMESTAMP_CALIBRATION
441     */
442    public static final int SENSOR_INFO_TIMESTAMP_CALIBRATION_UNCALIBRATED = 0;
443
444    /**
445     * <p>Timestamps from {@link CaptureResult#SENSOR_TIMESTAMP android.sensor.timestamp} are in the same timebase as
446     * android.os.SystemClock#elapsedRealtimeNanos(),
447     * and they can be compared to other timestamps using that base.</p>
448     *
449     * @see CaptureResult#SENSOR_TIMESTAMP
450     * @see CameraCharacteristics#SENSOR_INFO_TIMESTAMP_CALIBRATION
451     */
452    public static final int SENSOR_INFO_TIMESTAMP_CALIBRATION_CALIBRATED = 1;
453
454    //
455    // Enumeration values for CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
456    //
457
458    /**
459     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
460     */
461    public static final int SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT = 1;
462
463    /**
464     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
465     */
466    public static final int SENSOR_REFERENCE_ILLUMINANT1_FLUORESCENT = 2;
467
468    /**
469     * <p>Incandescent light</p>
470     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
471     */
472    public static final int SENSOR_REFERENCE_ILLUMINANT1_TUNGSTEN = 3;
473
474    /**
475     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
476     */
477    public static final int SENSOR_REFERENCE_ILLUMINANT1_FLASH = 4;
478
479    /**
480     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
481     */
482    public static final int SENSOR_REFERENCE_ILLUMINANT1_FINE_WEATHER = 9;
483
484    /**
485     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
486     */
487    public static final int SENSOR_REFERENCE_ILLUMINANT1_CLOUDY_WEATHER = 10;
488
489    /**
490     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
491     */
492    public static final int SENSOR_REFERENCE_ILLUMINANT1_SHADE = 11;
493
494    /**
495     * <p>D 5700 - 7100K</p>
496     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
497     */
498    public static final int SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT_FLUORESCENT = 12;
499
500    /**
501     * <p>N 4600 - 5400K</p>
502     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
503     */
504    public static final int SENSOR_REFERENCE_ILLUMINANT1_DAY_WHITE_FLUORESCENT = 13;
505
506    /**
507     * <p>W 3900 - 4500K</p>
508     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
509     */
510    public static final int SENSOR_REFERENCE_ILLUMINANT1_COOL_WHITE_FLUORESCENT = 14;
511
512    /**
513     * <p>WW 3200 - 3700K</p>
514     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
515     */
516    public static final int SENSOR_REFERENCE_ILLUMINANT1_WHITE_FLUORESCENT = 15;
517
518    /**
519     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
520     */
521    public static final int SENSOR_REFERENCE_ILLUMINANT1_STANDARD_A = 17;
522
523    /**
524     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
525     */
526    public static final int SENSOR_REFERENCE_ILLUMINANT1_STANDARD_B = 18;
527
528    /**
529     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
530     */
531    public static final int SENSOR_REFERENCE_ILLUMINANT1_STANDARD_C = 19;
532
533    /**
534     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
535     */
536    public static final int SENSOR_REFERENCE_ILLUMINANT1_D55 = 20;
537
538    /**
539     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
540     */
541    public static final int SENSOR_REFERENCE_ILLUMINANT1_D65 = 21;
542
543    /**
544     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
545     */
546    public static final int SENSOR_REFERENCE_ILLUMINANT1_D75 = 22;
547
548    /**
549     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
550     */
551    public static final int SENSOR_REFERENCE_ILLUMINANT1_D50 = 23;
552
553    /**
554     * @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1
555     */
556    public static final int SENSOR_REFERENCE_ILLUMINANT1_ISO_STUDIO_TUNGSTEN = 24;
557
558    //
559    // Enumeration values for CameraCharacteristics#LED_AVAILABLE_LEDS
560    //
561
562    /**
563     * <p>android.led.transmit control is used.</p>
564     * @see CameraCharacteristics#LED_AVAILABLE_LEDS
565     * @hide
566     */
567    public static final int LED_AVAILABLE_LEDS_TRANSMIT = 0;
568
569    //
570    // Enumeration values for CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
571    //
572
573    /**
574     * <p>This camera device has only limited capabilities.</p>
575     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
576     */
577    public static final int INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED = 0;
578
579    /**
580     * <p>This camera device is capable of supporting advanced imaging
581     * applications.</p>
582     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
583     */
584    public static final int INFO_SUPPORTED_HARDWARE_LEVEL_FULL = 1;
585
586    //
587    // Enumeration values for CameraCharacteristics#SYNC_MAX_LATENCY
588    //
589
590    /**
591     * <p>Every frame has the requests immediately applied.</p>
592     * <p>Furthermore for all results,
593     * <code>android.sync.frameNumber == android.request.frameCount</code></p>
594     * <p>Changing controls over multiple requests one after another will
595     * produce results that have those controls applied atomically
596     * each frame.</p>
597     * <p>All FULL capability devices will have this as their maxLatency.</p>
598     * @see CameraCharacteristics#SYNC_MAX_LATENCY
599     */
600    public static final int SYNC_MAX_LATENCY_PER_FRAME_CONTROL = 0;
601
602    /**
603     * <p>Each new frame has some subset (potentially the entire set)
604     * of the past requests applied to the camera settings.</p>
605     * <p>By submitting a series of identical requests, the camera device
606     * will eventually have the camera settings applied, but it is
607     * unknown when that exact point will be.</p>
608     * @see CameraCharacteristics#SYNC_MAX_LATENCY
609     */
610    public static final int SYNC_MAX_LATENCY_UNKNOWN = -1;
611
612    //
613    // Enumeration values for CaptureRequest#COLOR_CORRECTION_MODE
614    //
615
616    /**
617     * <p>Use the {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform} matrix
618     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} to do color conversion.</p>
619     * <p>All advanced white balance adjustments (not specified
620     * by our white balance pipeline) must be disabled.</p>
621     * <p>If AWB is enabled with <code>{@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} != OFF</code>, then
622     * TRANSFORM_MATRIX is ignored. The camera device will override
623     * this value to either FAST or HIGH_QUALITY.</p>
624     *
625     * @see CaptureRequest#COLOR_CORRECTION_GAINS
626     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
627     * @see CaptureRequest#CONTROL_AWB_MODE
628     * @see CaptureRequest#COLOR_CORRECTION_MODE
629     */
630    public static final int COLOR_CORRECTION_MODE_TRANSFORM_MATRIX = 0;
631
632    /**
633     * <p>Color correction processing must not slow down
634     * capture rate relative to sensor raw output.</p>
635     * <p>Advanced white balance adjustments above and beyond
636     * the specified white balance pipeline may be applied.</p>
637     * <p>If AWB is enabled with <code>{@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} != OFF</code>, then
638     * the camera device uses the last frame's AWB values
639     * (or defaults if AWB has never been run).</p>
640     *
641     * @see CaptureRequest#CONTROL_AWB_MODE
642     * @see CaptureRequest#COLOR_CORRECTION_MODE
643     */
644    public static final int COLOR_CORRECTION_MODE_FAST = 1;
645
646    /**
647     * <p>Color correction processing operates at improved
648     * quality but reduced capture rate (relative to sensor raw
649     * output).</p>
650     * <p>Advanced white balance adjustments above and beyond
651     * the specified white balance pipeline may be applied.</p>
652     * <p>If AWB is enabled with <code>{@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} != OFF</code>, then
653     * the camera device uses the last frame's AWB values
654     * (or defaults if AWB has never been run).</p>
655     *
656     * @see CaptureRequest#CONTROL_AWB_MODE
657     * @see CaptureRequest#COLOR_CORRECTION_MODE
658     */
659    public static final int COLOR_CORRECTION_MODE_HIGH_QUALITY = 2;
660
661    //
662    // Enumeration values for CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
663    //
664
665    /**
666     * <p>The camera device will not adjust exposure duration to
667     * avoid banding problems.</p>
668     * @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
669     */
670    public static final int CONTROL_AE_ANTIBANDING_MODE_OFF = 0;
671
672    /**
673     * <p>The camera device will adjust exposure duration to
674     * avoid banding problems with 50Hz illumination sources.</p>
675     * @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
676     */
677    public static final int CONTROL_AE_ANTIBANDING_MODE_50HZ = 1;
678
679    /**
680     * <p>The camera device will adjust exposure duration to
681     * avoid banding problems with 60Hz illumination
682     * sources.</p>
683     * @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
684     */
685    public static final int CONTROL_AE_ANTIBANDING_MODE_60HZ = 2;
686
687    /**
688     * <p>The camera device will automatically adapt its
689     * antibanding routine to the current illumination
690     * conditions. This is the default.</p>
691     * @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE
692     */
693    public static final int CONTROL_AE_ANTIBANDING_MODE_AUTO = 3;
694
695    //
696    // Enumeration values for CaptureRequest#CONTROL_AE_MODE
697    //
698
699    /**
700     * <p>The camera device's autoexposure routine is disabled.</p>
701     * <p>The application-selected {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime},
702     * {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity} and
703     * {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration} are used by the camera
704     * device, along with android.flash.* fields, if there's
705     * a flash unit for this camera device.</p>
706     *
707     * @see CaptureRequest#SENSOR_EXPOSURE_TIME
708     * @see CaptureRequest#SENSOR_FRAME_DURATION
709     * @see CaptureRequest#SENSOR_SENSITIVITY
710     * @see CaptureRequest#CONTROL_AE_MODE
711     */
712    public static final int CONTROL_AE_MODE_OFF = 0;
713
714    /**
715     * <p>The camera device's autoexposure routine is active,
716     * with no flash control.</p>
717     * <p>The application's values for
718     * {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime},
719     * {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}, and
720     * {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration} are ignored. The
721     * application has control over the various
722     * android.flash.* fields.</p>
723     *
724     * @see CaptureRequest#SENSOR_EXPOSURE_TIME
725     * @see CaptureRequest#SENSOR_FRAME_DURATION
726     * @see CaptureRequest#SENSOR_SENSITIVITY
727     * @see CaptureRequest#CONTROL_AE_MODE
728     */
729    public static final int CONTROL_AE_MODE_ON = 1;
730
731    /**
732     * <p>Like ON, except that the camera device also controls
733     * the camera's flash unit, firing it in low-light
734     * conditions.</p>
735     * <p>The flash may be fired during a precapture sequence
736     * (triggered by {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}) and
737     * may be fired for captures for which the
738     * {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} field is set to
739     * STILL_CAPTURE</p>
740     *
741     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
742     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
743     * @see CaptureRequest#CONTROL_AE_MODE
744     */
745    public static final int CONTROL_AE_MODE_ON_AUTO_FLASH = 2;
746
747    /**
748     * <p>Like ON, except that the camera device also controls
749     * the camera's flash unit, always firing it for still
750     * captures.</p>
751     * <p>The flash may be fired during a precapture sequence
752     * (triggered by {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}) and
753     * will always be fired for captures for which the
754     * {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} field is set to
755     * STILL_CAPTURE</p>
756     *
757     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
758     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
759     * @see CaptureRequest#CONTROL_AE_MODE
760     */
761    public static final int CONTROL_AE_MODE_ON_ALWAYS_FLASH = 3;
762
763    /**
764     * <p>Like ON_AUTO_FLASH, but with automatic red eye
765     * reduction.</p>
766     * <p>If deemed necessary by the camera device, a red eye
767     * reduction flash will fire during the precapture
768     * sequence.</p>
769     * @see CaptureRequest#CONTROL_AE_MODE
770     */
771    public static final int CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE = 4;
772
773    //
774    // Enumeration values for CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
775    //
776
777    /**
778     * <p>The trigger is idle.</p>
779     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
780     */
781    public static final int CONTROL_AE_PRECAPTURE_TRIGGER_IDLE = 0;
782
783    /**
784     * <p>The precapture metering sequence will be started
785     * by the camera device.</p>
786     * <p>The exact effect of the precapture trigger depends on
787     * the current AE mode and state.</p>
788     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
789     */
790    public static final int CONTROL_AE_PRECAPTURE_TRIGGER_START = 1;
791
792    //
793    // Enumeration values for CaptureRequest#CONTROL_AF_MODE
794    //
795
796    /**
797     * <p>The auto-focus routine does not control the lens;
798     * {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance} is controlled by the
799     * application.</p>
800     *
801     * @see CaptureRequest#LENS_FOCUS_DISTANCE
802     * @see CaptureRequest#CONTROL_AF_MODE
803     */
804    public static final int CONTROL_AF_MODE_OFF = 0;
805
806    /**
807     * <p>Basic automatic focus mode.</p>
808     * <p>In this mode, the lens does not move unless
809     * the autofocus trigger action is called. When that trigger
810     * is activated, AF will transition to ACTIVE_SCAN, then to
811     * the outcome of the scan (FOCUSED or NOT_FOCUSED).</p>
812     * <p>Always supported if lens is not fixed focus.</p>
813     * <p>Use {@link CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance} to determine if lens
814     * is fixed-focus.</p>
815     * <p>Triggering AF_CANCEL resets the lens position to default,
816     * and sets the AF state to INACTIVE.</p>
817     *
818     * @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE
819     * @see CaptureRequest#CONTROL_AF_MODE
820     */
821    public static final int CONTROL_AF_MODE_AUTO = 1;
822
823    /**
824     * <p>Close-up focusing mode.</p>
825     * <p>In this mode, the lens does not move unless the
826     * autofocus trigger action is called. When that trigger is
827     * activated, AF will transition to ACTIVE_SCAN, then to
828     * the outcome of the scan (FOCUSED or NOT_FOCUSED). This
829     * mode is optimized for focusing on objects very close to
830     * the camera.</p>
831     * <p>When that trigger is activated, AF will transition to
832     * ACTIVE_SCAN, then to the outcome of the scan (FOCUSED or
833     * NOT_FOCUSED). Triggering cancel AF resets the lens
834     * position to default, and sets the AF state to
835     * INACTIVE.</p>
836     * @see CaptureRequest#CONTROL_AF_MODE
837     */
838    public static final int CONTROL_AF_MODE_MACRO = 2;
839
840    /**
841     * <p>In this mode, the AF algorithm modifies the lens
842     * position continually to attempt to provide a
843     * constantly-in-focus image stream.</p>
844     * <p>The focusing behavior should be suitable for good quality
845     * video recording; typically this means slower focus
846     * movement and no overshoots. When the AF trigger is not
847     * involved, the AF algorithm should start in INACTIVE state,
848     * and then transition into PASSIVE_SCAN and PASSIVE_FOCUSED
849     * states as appropriate. When the AF trigger is activated,
850     * the algorithm should immediately transition into
851     * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
852     * lens position until a cancel AF trigger is received.</p>
853     * <p>Once cancel is received, the algorithm should transition
854     * back to INACTIVE and resume passive scan. Note that this
855     * behavior is not identical to CONTINUOUS_PICTURE, since an
856     * ongoing PASSIVE_SCAN must immediately be
857     * canceled.</p>
858     * @see CaptureRequest#CONTROL_AF_MODE
859     */
860    public static final int CONTROL_AF_MODE_CONTINUOUS_VIDEO = 3;
861
862    /**
863     * <p>In this mode, the AF algorithm modifies the lens
864     * position continually to attempt to provide a
865     * constantly-in-focus image stream.</p>
866     * <p>The focusing behavior should be suitable for still image
867     * capture; typically this means focusing as fast as
868     * possible. When the AF trigger is not involved, the AF
869     * algorithm should start in INACTIVE state, and then
870     * transition into PASSIVE_SCAN and PASSIVE_FOCUSED states as
871     * appropriate as it attempts to maintain focus. When the AF
872     * trigger is activated, the algorithm should finish its
873     * PASSIVE_SCAN if active, and then transition into
874     * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
875     * lens position until a cancel AF trigger is received.</p>
876     * <p>When the AF cancel trigger is activated, the algorithm
877     * should transition back to INACTIVE and then act as if it
878     * has just been started.</p>
879     * @see CaptureRequest#CONTROL_AF_MODE
880     */
881    public static final int CONTROL_AF_MODE_CONTINUOUS_PICTURE = 4;
882
883    /**
884     * <p>Extended depth of field (digital focus) mode.</p>
885     * <p>The camera device will produce images with an extended
886     * depth of field automatically; no special focusing
887     * operations need to be done before taking a picture.</p>
888     * <p>AF triggers are ignored, and the AF state will always be
889     * INACTIVE.</p>
890     * @see CaptureRequest#CONTROL_AF_MODE
891     */
892    public static final int CONTROL_AF_MODE_EDOF = 5;
893
894    //
895    // Enumeration values for CaptureRequest#CONTROL_AF_TRIGGER
896    //
897
898    /**
899     * <p>The trigger is idle.</p>
900     * @see CaptureRequest#CONTROL_AF_TRIGGER
901     */
902    public static final int CONTROL_AF_TRIGGER_IDLE = 0;
903
904    /**
905     * <p>Autofocus will trigger now.</p>
906     * @see CaptureRequest#CONTROL_AF_TRIGGER
907     */
908    public static final int CONTROL_AF_TRIGGER_START = 1;
909
910    /**
911     * <p>Autofocus will return to its initial
912     * state, and cancel any currently active trigger.</p>
913     * @see CaptureRequest#CONTROL_AF_TRIGGER
914     */
915    public static final int CONTROL_AF_TRIGGER_CANCEL = 2;
916
917    //
918    // Enumeration values for CaptureRequest#CONTROL_AWB_MODE
919    //
920
921    /**
922     * <p>The camera device's auto-white balance routine is disabled.</p>
923     * <p>The application-selected color transform matrix
924     * ({@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}) and gains
925     * ({@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains}) are used by the camera
926     * device for manual white balance control.</p>
927     *
928     * @see CaptureRequest#COLOR_CORRECTION_GAINS
929     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
930     * @see CaptureRequest#CONTROL_AWB_MODE
931     */
932    public static final int CONTROL_AWB_MODE_OFF = 0;
933
934    /**
935     * <p>The camera device's auto-white balance routine is active.</p>
936     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
937     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
938     * For devices that support the MANUAL_POST_PROCESSING capability, the
939     * values used by the camera device for the transform and gains
940     * will be available in the capture result for this request.</p>
941     *
942     * @see CaptureRequest#COLOR_CORRECTION_GAINS
943     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
944     * @see CaptureRequest#CONTROL_AWB_MODE
945     */
946    public static final int CONTROL_AWB_MODE_AUTO = 1;
947
948    /**
949     * <p>The camera device's auto-white balance routine is disabled;
950     * the camera device uses incandescent light as the assumed scene
951     * illumination for white balance.</p>
952     * <p>While the exact white balance transforms are up to the
953     * camera device, they will approximately match the CIE
954     * standard illuminant A.</p>
955     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
956     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
957     * For devices that support the MANUAL_POST_PROCESSING capability, the
958     * values used by the camera device for the transform and gains
959     * will be available in the capture result for this request.</p>
960     *
961     * @see CaptureRequest#COLOR_CORRECTION_GAINS
962     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
963     * @see CaptureRequest#CONTROL_AWB_MODE
964     */
965    public static final int CONTROL_AWB_MODE_INCANDESCENT = 2;
966
967    /**
968     * <p>The camera device's auto-white balance routine is disabled;
969     * the camera device uses fluorescent light as the assumed scene
970     * illumination for white balance.</p>
971     * <p>While the exact white balance transforms are up to the
972     * camera device, they will approximately match the CIE
973     * standard illuminant F2.</p>
974     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
975     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
976     * For devices that support the MANUAL_POST_PROCESSING capability, the
977     * values used by the camera device for the transform and gains
978     * will be available in the capture result for this request.</p>
979     *
980     * @see CaptureRequest#COLOR_CORRECTION_GAINS
981     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
982     * @see CaptureRequest#CONTROL_AWB_MODE
983     */
984    public static final int CONTROL_AWB_MODE_FLUORESCENT = 3;
985
986    /**
987     * <p>The camera device's auto-white balance routine is disabled;
988     * the camera device uses warm fluorescent light as the assumed scene
989     * illumination for white balance.</p>
990     * <p>While the exact white balance transforms are up to the
991     * camera device, they will approximately match the CIE
992     * standard illuminant F4.</p>
993     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
994     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
995     * For devices that support the MANUAL_POST_PROCESSING capability, the
996     * values used by the camera device for the transform and gains
997     * will be available in the capture result for this request.</p>
998     *
999     * @see CaptureRequest#COLOR_CORRECTION_GAINS
1000     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
1001     * @see CaptureRequest#CONTROL_AWB_MODE
1002     */
1003    public static final int CONTROL_AWB_MODE_WARM_FLUORESCENT = 4;
1004
1005    /**
1006     * <p>The camera device's auto-white balance routine is disabled;
1007     * the camera device uses daylight light as the assumed scene
1008     * illumination for white balance.</p>
1009     * <p>While the exact white balance transforms are up to the
1010     * camera device, they will approximately match the CIE
1011     * standard illuminant D65.</p>
1012     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
1013     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
1014     * For devices that support the MANUAL_POST_PROCESSING capability, the
1015     * values used by the camera device for the transform and gains
1016     * will be available in the capture result for this request.</p>
1017     *
1018     * @see CaptureRequest#COLOR_CORRECTION_GAINS
1019     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
1020     * @see CaptureRequest#CONTROL_AWB_MODE
1021     */
1022    public static final int CONTROL_AWB_MODE_DAYLIGHT = 5;
1023
1024    /**
1025     * <p>The camera device's auto-white balance routine is disabled;
1026     * the camera device uses cloudy daylight light as the assumed scene
1027     * illumination for white balance.</p>
1028     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
1029     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
1030     * For devices that support the MANUAL_POST_PROCESSING capability, the
1031     * values used by the camera device for the transform and gains
1032     * will be available in the capture result for this request.</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_CLOUDY_DAYLIGHT = 6;
1039
1040    /**
1041     * <p>The camera device's auto-white balance routine is disabled;
1042     * the camera device uses twilight light as the assumed scene
1043     * illumination for white balance.</p>
1044     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
1045     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
1046     * For devices that support the MANUAL_POST_PROCESSING capability, the
1047     * values used by the camera device for the transform and gains
1048     * will be available in the capture result for this request.</p>
1049     *
1050     * @see CaptureRequest#COLOR_CORRECTION_GAINS
1051     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
1052     * @see CaptureRequest#CONTROL_AWB_MODE
1053     */
1054    public static final int CONTROL_AWB_MODE_TWILIGHT = 7;
1055
1056    /**
1057     * <p>The camera device's auto-white balance routine is disabled;
1058     * the camera device uses shade light as the assumed scene
1059     * illumination for white balance.</p>
1060     * <p>The application's values for {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}
1061     * and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} are ignored.
1062     * For devices that support the MANUAL_POST_PROCESSING capability, the
1063     * values used by the camera device for the transform and gains
1064     * will be available in the capture result for this request.</p>
1065     *
1066     * @see CaptureRequest#COLOR_CORRECTION_GAINS
1067     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
1068     * @see CaptureRequest#CONTROL_AWB_MODE
1069     */
1070    public static final int CONTROL_AWB_MODE_SHADE = 8;
1071
1072    //
1073    // Enumeration values for CaptureRequest#CONTROL_CAPTURE_INTENT
1074    //
1075
1076    /**
1077     * <p>The goal of this request doesn't fall into the other
1078     * categories. The camera device will default to preview-like
1079     * behavior.</p>
1080     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1081     */
1082    public static final int CONTROL_CAPTURE_INTENT_CUSTOM = 0;
1083
1084    /**
1085     * <p>This request is for a preview-like use case.</p>
1086     * <p>The precapture trigger may be used to start off a metering
1087     * w/flash sequence.</p>
1088     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1089     */
1090    public static final int CONTROL_CAPTURE_INTENT_PREVIEW = 1;
1091
1092    /**
1093     * <p>This request is for a still capture-type
1094     * use case.</p>
1095     * <p>If the flash unit is under automatic control, it may fire as needed.</p>
1096     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1097     */
1098    public static final int CONTROL_CAPTURE_INTENT_STILL_CAPTURE = 2;
1099
1100    /**
1101     * <p>This request is for a video recording
1102     * use case.</p>
1103     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1104     */
1105    public static final int CONTROL_CAPTURE_INTENT_VIDEO_RECORD = 3;
1106
1107    /**
1108     * <p>This request is for a video snapshot (still
1109     * image while recording video) use case.</p>
1110     * <p>The camera device should take the highest-quality image
1111     * possible (given the other settings) without disrupting the
1112     * frame rate of video recording.<br />
1113     * </p>
1114     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1115     */
1116    public static final int CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT = 4;
1117
1118    /**
1119     * <p>This request is for a ZSL usecase; the
1120     * application will stream full-resolution images and
1121     * reprocess one or several later for a final
1122     * capture.</p>
1123     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1124     */
1125    public static final int CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG = 5;
1126
1127    /**
1128     * <p>This request is for manual capture use case where
1129     * the applications want to directly control the capture parameters.</p>
1130     * <p>For example, the application may wish to manually control
1131     * {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}, {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}, etc.</p>
1132     *
1133     * @see CaptureRequest#SENSOR_EXPOSURE_TIME
1134     * @see CaptureRequest#SENSOR_SENSITIVITY
1135     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1136     */
1137    public static final int CONTROL_CAPTURE_INTENT_MANUAL = 6;
1138
1139    //
1140    // Enumeration values for CaptureRequest#CONTROL_EFFECT_MODE
1141    //
1142
1143    /**
1144     * <p>No color effect will be applied.</p>
1145     * @see CaptureRequest#CONTROL_EFFECT_MODE
1146     */
1147    public static final int CONTROL_EFFECT_MODE_OFF = 0;
1148
1149    /**
1150     * <p>A "monocolor" effect where the image is mapped into
1151     * a single color.</p>
1152     * <p>This will typically be grayscale.</p>
1153     * @see CaptureRequest#CONTROL_EFFECT_MODE
1154     */
1155    public static final int CONTROL_EFFECT_MODE_MONO = 1;
1156
1157    /**
1158     * <p>A "photo-negative" effect where the image's colors
1159     * are inverted.</p>
1160     * @see CaptureRequest#CONTROL_EFFECT_MODE
1161     */
1162    public static final int CONTROL_EFFECT_MODE_NEGATIVE = 2;
1163
1164    /**
1165     * <p>A "solarisation" effect (Sabattier effect) where the
1166     * image is wholly or partially reversed in
1167     * tone.</p>
1168     * @see CaptureRequest#CONTROL_EFFECT_MODE
1169     */
1170    public static final int CONTROL_EFFECT_MODE_SOLARIZE = 3;
1171
1172    /**
1173     * <p>A "sepia" effect where the image is mapped into warm
1174     * gray, red, and brown tones.</p>
1175     * @see CaptureRequest#CONTROL_EFFECT_MODE
1176     */
1177    public static final int CONTROL_EFFECT_MODE_SEPIA = 4;
1178
1179    /**
1180     * <p>A "posterization" effect where the image uses
1181     * discrete regions of tone rather than a continuous
1182     * gradient of tones.</p>
1183     * @see CaptureRequest#CONTROL_EFFECT_MODE
1184     */
1185    public static final int CONTROL_EFFECT_MODE_POSTERIZE = 5;
1186
1187    /**
1188     * <p>A "whiteboard" effect where the image is typically displayed
1189     * as regions of white, with black or grey details.</p>
1190     * @see CaptureRequest#CONTROL_EFFECT_MODE
1191     */
1192    public static final int CONTROL_EFFECT_MODE_WHITEBOARD = 6;
1193
1194    /**
1195     * <p>A "blackboard" effect where the image is typically displayed
1196     * as regions of black, with white or grey details.</p>
1197     * @see CaptureRequest#CONTROL_EFFECT_MODE
1198     */
1199    public static final int CONTROL_EFFECT_MODE_BLACKBOARD = 7;
1200
1201    /**
1202     * <p>An "aqua" effect where a blue hue is added to the image.</p>
1203     * @see CaptureRequest#CONTROL_EFFECT_MODE
1204     */
1205    public static final int CONTROL_EFFECT_MODE_AQUA = 8;
1206
1207    //
1208    // Enumeration values for CaptureRequest#CONTROL_MODE
1209    //
1210
1211    /**
1212     * <p>Full application control of pipeline.</p>
1213     * <p>All control by the device's metering and focusing (3A)
1214     * routines is disabled, and no other settings in
1215     * android.control.* have any effect, except that
1216     * {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} may be used by the camera
1217     * device to select post-processing values for processing
1218     * blocks that do not allow for manual control, or are not
1219     * exposed by the camera API.</p>
1220     * <p>However, the camera device's 3A routines may continue to
1221     * collect statistics and update their internal state so that
1222     * when control is switched to AUTO mode, good control values
1223     * can be immediately applied.</p>
1224     *
1225     * @see CaptureRequest#CONTROL_CAPTURE_INTENT
1226     * @see CaptureRequest#CONTROL_MODE
1227     */
1228    public static final int CONTROL_MODE_OFF = 0;
1229
1230    /**
1231     * <p>Use settings for each individual 3A routine.</p>
1232     * <p>Manual control of capture parameters is disabled. All
1233     * controls in android.control.* besides sceneMode take
1234     * effect.</p>
1235     * @see CaptureRequest#CONTROL_MODE
1236     */
1237    public static final int CONTROL_MODE_AUTO = 1;
1238
1239    /**
1240     * <p>Use a specific scene mode.</p>
1241     * <p>Enabling this disables control.aeMode, control.awbMode and
1242     * control.afMode controls; the camera device will ignore
1243     * those settings while USE_SCENE_MODE is active (except for
1244     * FACE_PRIORITY scene mode). Other control entries are still
1245     * active.  This setting can only be used if scene mode is
1246     * supported (i.e. {@link CameraCharacteristics#CONTROL_AVAILABLE_SCENE_MODES android.control.availableSceneModes}
1247     * contain some modes other than DISABLED).</p>
1248     *
1249     * @see CameraCharacteristics#CONTROL_AVAILABLE_SCENE_MODES
1250     * @see CaptureRequest#CONTROL_MODE
1251     */
1252    public static final int CONTROL_MODE_USE_SCENE_MODE = 2;
1253
1254    /**
1255     * <p>Same as OFF mode, except that this capture will not be
1256     * used by camera device background auto-exposure, auto-white balance and
1257     * auto-focus algorithms (3A) to update their statistics.</p>
1258     * <p>Specifically, the 3A routines are locked to the last
1259     * values set from a request with AUTO, OFF, or
1260     * USE_SCENE_MODE, and any statistics or state updates
1261     * collected from manual captures with OFF_KEEP_STATE will be
1262     * discarded by the camera device.</p>
1263     * @see CaptureRequest#CONTROL_MODE
1264     */
1265    public static final int CONTROL_MODE_OFF_KEEP_STATE = 3;
1266
1267    //
1268    // Enumeration values for CaptureRequest#CONTROL_SCENE_MODE
1269    //
1270
1271    /**
1272     * <p>Indicates that no scene modes are set for a given capture request.</p>
1273     * @see CaptureRequest#CONTROL_SCENE_MODE
1274     */
1275    public static final int CONTROL_SCENE_MODE_DISABLED = 0;
1276
1277    /**
1278     * <p>If face detection support exists, use face
1279     * detection data for auto-focus, auto-white balance, and
1280     * auto-exposure routines.</p>
1281     * <p>If face detection statistics are disabled
1282     * (i.e. {@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} is set to OFF),
1283     * this should still operate correctly (but will not return
1284     * face detection statistics to the framework).</p>
1285     * <p>Unlike the other scene modes, {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode},
1286     * {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode}, and {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}
1287     * remain active when FACE_PRIORITY is set.</p>
1288     *
1289     * @see CaptureRequest#CONTROL_AE_MODE
1290     * @see CaptureRequest#CONTROL_AF_MODE
1291     * @see CaptureRequest#CONTROL_AWB_MODE
1292     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
1293     * @see CaptureRequest#CONTROL_SCENE_MODE
1294     */
1295    public static final int CONTROL_SCENE_MODE_FACE_PRIORITY = 1;
1296
1297    /**
1298     * <p>Optimized for photos of quickly moving objects.</p>
1299     * <p>Similar to SPORTS.</p>
1300     * @see CaptureRequest#CONTROL_SCENE_MODE
1301     */
1302    public static final int CONTROL_SCENE_MODE_ACTION = 2;
1303
1304    /**
1305     * <p>Optimized for still photos of people.</p>
1306     * @see CaptureRequest#CONTROL_SCENE_MODE
1307     */
1308    public static final int CONTROL_SCENE_MODE_PORTRAIT = 3;
1309
1310    /**
1311     * <p>Optimized for photos of distant macroscopic objects.</p>
1312     * @see CaptureRequest#CONTROL_SCENE_MODE
1313     */
1314    public static final int CONTROL_SCENE_MODE_LANDSCAPE = 4;
1315
1316    /**
1317     * <p>Optimized for low-light settings.</p>
1318     * @see CaptureRequest#CONTROL_SCENE_MODE
1319     */
1320    public static final int CONTROL_SCENE_MODE_NIGHT = 5;
1321
1322    /**
1323     * <p>Optimized for still photos of people in low-light
1324     * settings.</p>
1325     * @see CaptureRequest#CONTROL_SCENE_MODE
1326     */
1327    public static final int CONTROL_SCENE_MODE_NIGHT_PORTRAIT = 6;
1328
1329    /**
1330     * <p>Optimized for dim, indoor settings where flash must
1331     * remain off.</p>
1332     * @see CaptureRequest#CONTROL_SCENE_MODE
1333     */
1334    public static final int CONTROL_SCENE_MODE_THEATRE = 7;
1335
1336    /**
1337     * <p>Optimized for bright, outdoor beach settings.</p>
1338     * @see CaptureRequest#CONTROL_SCENE_MODE
1339     */
1340    public static final int CONTROL_SCENE_MODE_BEACH = 8;
1341
1342    /**
1343     * <p>Optimized for bright, outdoor settings containing snow.</p>
1344     * @see CaptureRequest#CONTROL_SCENE_MODE
1345     */
1346    public static final int CONTROL_SCENE_MODE_SNOW = 9;
1347
1348    /**
1349     * <p>Optimized for scenes of the setting sun.</p>
1350     * @see CaptureRequest#CONTROL_SCENE_MODE
1351     */
1352    public static final int CONTROL_SCENE_MODE_SUNSET = 10;
1353
1354    /**
1355     * <p>Optimized to avoid blurry photos due to small amounts of
1356     * device motion (for example: due to hand shake).</p>
1357     * @see CaptureRequest#CONTROL_SCENE_MODE
1358     */
1359    public static final int CONTROL_SCENE_MODE_STEADYPHOTO = 11;
1360
1361    /**
1362     * <p>Optimized for nighttime photos of fireworks.</p>
1363     * @see CaptureRequest#CONTROL_SCENE_MODE
1364     */
1365    public static final int CONTROL_SCENE_MODE_FIREWORKS = 12;
1366
1367    /**
1368     * <p>Optimized for photos of quickly moving people.</p>
1369     * <p>Similar to ACTION.</p>
1370     * @see CaptureRequest#CONTROL_SCENE_MODE
1371     */
1372    public static final int CONTROL_SCENE_MODE_SPORTS = 13;
1373
1374    /**
1375     * <p>Optimized for dim, indoor settings with multiple moving
1376     * people.</p>
1377     * @see CaptureRequest#CONTROL_SCENE_MODE
1378     */
1379    public static final int CONTROL_SCENE_MODE_PARTY = 14;
1380
1381    /**
1382     * <p>Optimized for dim settings where the main light source
1383     * is a flame.</p>
1384     * @see CaptureRequest#CONTROL_SCENE_MODE
1385     */
1386    public static final int CONTROL_SCENE_MODE_CANDLELIGHT = 15;
1387
1388    /**
1389     * <p>Optimized for accurately capturing a photo of barcode
1390     * for use by camera applications that wish to read the
1391     * barcode value.</p>
1392     * @see CaptureRequest#CONTROL_SCENE_MODE
1393     */
1394    public static final int CONTROL_SCENE_MODE_BARCODE = 16;
1395
1396    /**
1397     * <p>Optimized for high speed video recording (frame rate &gt;=60fps) use case.</p>
1398     * <p>The supported high speed video sizes and fps ranges are specified in
1399     * android.control.availableHighSpeedVideoConfigurations. To get desired
1400     * output frame rates, the application is only allowed to select video size
1401     * and fps range combinations listed in this static metadata. The fps range
1402     * can be control via {@link CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE android.control.aeTargetFpsRange}.</p>
1403     * <p>In this mode, the camera device will override aeMode, awbMode, and afMode to
1404     * ON, ON, and CONTINUOUS_VIDEO, respectively. All post-processing block mode
1405     * controls will be overridden to be FAST. Therefore, no manual control of capture
1406     * and post-processing parameters is possible. All other controls operate the
1407     * same as when {@link CaptureRequest#CONTROL_MODE android.control.mode} == AUTO. This means that all other
1408     * android.control.* fields continue to work, such as</p>
1409     * <ul>
1410     * <li>{@link CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE android.control.aeTargetFpsRange}</li>
1411     * <li>{@link CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION android.control.aeExposureCompensation}</li>
1412     * <li>{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock}</li>
1413     * <li>{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock}</li>
1414     * <li>{@link CaptureRequest#CONTROL_EFFECT_MODE android.control.effectMode}</li>
1415     * <li>{@link CaptureRequest#CONTROL_AE_REGIONS android.control.aeRegions}</li>
1416     * <li>{@link CaptureRequest#CONTROL_AF_REGIONS android.control.afRegions}</li>
1417     * <li>{@link CaptureRequest#CONTROL_AWB_REGIONS android.control.awbRegions}</li>
1418     * <li>{@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}</li>
1419     * <li>{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}</li>
1420     * </ul>
1421     * <p>Outside of android.control.*, the following controls will work:</p>
1422     * <ul>
1423     * <li>{@link CaptureRequest#FLASH_MODE android.flash.mode} (automatic flash for still capture will not work since aeMode is ON)</li>
1424     * <li>{@link CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE android.lens.opticalStabilizationMode} (if it is supported)</li>
1425     * <li>{@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion}</li>
1426     * <li>{@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode}</li>
1427     * </ul>
1428     * <p>For high speed recording use case, the actual maximum supported frame rate may
1429     * be lower than what camera can output, depending on the destination Surfaces for
1430     * the image data. For example, if the destination surface is from video encoder,
1431     * the application need check if the video encoder is capable of supporting the
1432     * high frame rate for a given video size, or it will end up with lower recording
1433     * frame rate. If the destination surface is from preview window, the preview frame
1434     * rate will be bounded by the screen refresh rate.</p>
1435     * <p>The camera device will only support up to 2 output high speed streams
1436     * (processed non-stalling format defined in android.request.maxNumOutputStreams)
1437     * in this mode. This control will be effective only if all of below conditions are true:</p>
1438     * <ul>
1439     * <li>The application created no more than maxNumHighSpeedStreams processed non-stalling
1440     * format output streams, where maxNumHighSpeedStreams is calculated as
1441     * min(2, android.request.maxNumOutputStreams[Processed (but not-stalling)]).</li>
1442     * <li>The stream sizes are selected from the sizes reported by
1443     * android.control.availableHighSpeedVideoConfigurations.</li>
1444     * <li>No processed non-stalling or raw streams are configured.</li>
1445     * </ul>
1446     * <p>When above conditions are NOT satistied, the controls of this mode and
1447     * {@link CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE android.control.aeTargetFpsRange} will be ignored by the camera device,
1448     * the camera device will fall back to {@link CaptureRequest#CONTROL_MODE android.control.mode} <code>==</code> AUTO,
1449     * and the returned capture result metadata will give the fps range choosen
1450     * by the camera device.</p>
1451     * <p>Switching into or out of this mode may trigger some camera ISP/sensor
1452     * reconfigurations, which may introduce extra latency. It is recommended that
1453     * the application avoids unnecessary scene mode switch as much as possible.</p>
1454     *
1455     * @see CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION
1456     * @see CaptureRequest#CONTROL_AE_LOCK
1457     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
1458     * @see CaptureRequest#CONTROL_AE_REGIONS
1459     * @see CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE
1460     * @see CaptureRequest#CONTROL_AF_REGIONS
1461     * @see CaptureRequest#CONTROL_AF_TRIGGER
1462     * @see CaptureRequest#CONTROL_AWB_LOCK
1463     * @see CaptureRequest#CONTROL_AWB_REGIONS
1464     * @see CaptureRequest#CONTROL_EFFECT_MODE
1465     * @see CaptureRequest#CONTROL_MODE
1466     * @see CaptureRequest#FLASH_MODE
1467     * @see CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE
1468     * @see CaptureRequest#SCALER_CROP_REGION
1469     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
1470     * @see CaptureRequest#CONTROL_SCENE_MODE
1471     */
1472    public static final int CONTROL_SCENE_MODE_HIGH_SPEED_VIDEO = 17;
1473
1474    //
1475    // Enumeration values for CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE
1476    //
1477
1478    /**
1479     * <p>Video stabilization is disabled.</p>
1480     * @see CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE
1481     */
1482    public static final int CONTROL_VIDEO_STABILIZATION_MODE_OFF = 0;
1483
1484    /**
1485     * <p>Video stabilization is enabled.</p>
1486     * @see CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE
1487     */
1488    public static final int CONTROL_VIDEO_STABILIZATION_MODE_ON = 1;
1489
1490    //
1491    // Enumeration values for CaptureRequest#EDGE_MODE
1492    //
1493
1494    /**
1495     * <p>No edge enhancement is applied.</p>
1496     * @see CaptureRequest#EDGE_MODE
1497     */
1498    public static final int EDGE_MODE_OFF = 0;
1499
1500    /**
1501     * <p>Apply edge enhancement at a quality level that does not slow down frame rate relative to sensor
1502     * output</p>
1503     * @see CaptureRequest#EDGE_MODE
1504     */
1505    public static final int EDGE_MODE_FAST = 1;
1506
1507    /**
1508     * <p>Apply high-quality edge enhancement, at a cost of reducing output frame rate.</p>
1509     * @see CaptureRequest#EDGE_MODE
1510     */
1511    public static final int EDGE_MODE_HIGH_QUALITY = 2;
1512
1513    //
1514    // Enumeration values for CaptureRequest#FLASH_MODE
1515    //
1516
1517    /**
1518     * <p>Do not fire the flash for this capture.</p>
1519     * @see CaptureRequest#FLASH_MODE
1520     */
1521    public static final int FLASH_MODE_OFF = 0;
1522
1523    /**
1524     * <p>If the flash is available and charged, fire flash
1525     * for this capture.</p>
1526     * @see CaptureRequest#FLASH_MODE
1527     */
1528    public static final int FLASH_MODE_SINGLE = 1;
1529
1530    /**
1531     * <p>Transition flash to continuously on.</p>
1532     * @see CaptureRequest#FLASH_MODE
1533     */
1534    public static final int FLASH_MODE_TORCH = 2;
1535
1536    //
1537    // Enumeration values for CaptureRequest#HOT_PIXEL_MODE
1538    //
1539
1540    /**
1541     * <p>No hot pixel correction is applied.</p>
1542     * <p>The frame rate must not be reduced relative to sensor raw output
1543     * for this option.</p>
1544     * <p>The hotpixel map may be returned in {@link CaptureResult#STATISTICS_HOT_PIXEL_MAP android.statistics.hotPixelMap}.</p>
1545     *
1546     * @see CaptureResult#STATISTICS_HOT_PIXEL_MAP
1547     * @see CaptureRequest#HOT_PIXEL_MODE
1548     */
1549    public static final int HOT_PIXEL_MODE_OFF = 0;
1550
1551    /**
1552     * <p>Hot pixel correction is applied, without reducing frame
1553     * rate relative to sensor raw output.</p>
1554     * <p>The hotpixel map may be returned in {@link CaptureResult#STATISTICS_HOT_PIXEL_MAP android.statistics.hotPixelMap}.</p>
1555     *
1556     * @see CaptureResult#STATISTICS_HOT_PIXEL_MAP
1557     * @see CaptureRequest#HOT_PIXEL_MODE
1558     */
1559    public static final int HOT_PIXEL_MODE_FAST = 1;
1560
1561    /**
1562     * <p>High-quality hot pixel correction is applied, at a cost
1563     * of reducing frame rate relative to sensor raw output.</p>
1564     * <p>The hotpixel map may be returned in {@link CaptureResult#STATISTICS_HOT_PIXEL_MAP android.statistics.hotPixelMap}.</p>
1565     *
1566     * @see CaptureResult#STATISTICS_HOT_PIXEL_MAP
1567     * @see CaptureRequest#HOT_PIXEL_MODE
1568     */
1569    public static final int HOT_PIXEL_MODE_HIGH_QUALITY = 2;
1570
1571    //
1572    // Enumeration values for CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE
1573    //
1574
1575    /**
1576     * <p>Optical stabilization is unavailable.</p>
1577     * @see CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE
1578     */
1579    public static final int LENS_OPTICAL_STABILIZATION_MODE_OFF = 0;
1580
1581    /**
1582     * <p>Optical stabilization is enabled.</p>
1583     * @see CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE
1584     */
1585    public static final int LENS_OPTICAL_STABILIZATION_MODE_ON = 1;
1586
1587    //
1588    // Enumeration values for CaptureRequest#NOISE_REDUCTION_MODE
1589    //
1590
1591    /**
1592     * <p>No noise reduction is applied.</p>
1593     * @see CaptureRequest#NOISE_REDUCTION_MODE
1594     */
1595    public static final int NOISE_REDUCTION_MODE_OFF = 0;
1596
1597    /**
1598     * <p>Noise reduction is applied without reducing frame rate relative to sensor
1599     * output.</p>
1600     * @see CaptureRequest#NOISE_REDUCTION_MODE
1601     */
1602    public static final int NOISE_REDUCTION_MODE_FAST = 1;
1603
1604    /**
1605     * <p>High-quality noise reduction is applied, at the cost of reducing frame rate
1606     * relative to sensor output.</p>
1607     * @see CaptureRequest#NOISE_REDUCTION_MODE
1608     */
1609    public static final int NOISE_REDUCTION_MODE_HIGH_QUALITY = 2;
1610
1611    //
1612    // Enumeration values for CaptureRequest#SENSOR_TEST_PATTERN_MODE
1613    //
1614
1615    /**
1616     * <p>No test pattern mode is used, and the camera
1617     * device returns captures from the image sensor.</p>
1618     * <p>This is the default if the key is not set.</p>
1619     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
1620     */
1621    public static final int SENSOR_TEST_PATTERN_MODE_OFF = 0;
1622
1623    /**
1624     * <p>Each pixel in <code>[R, G_even, G_odd, B]</code> is replaced by its
1625     * respective color channel provided in
1626     * {@link CaptureRequest#SENSOR_TEST_PATTERN_DATA android.sensor.testPatternData}.</p>
1627     * <p>For example:</p>
1628     * <pre><code>android.testPatternData = [0, 0xFFFFFFFF, 0xFFFFFFFF, 0]
1629     * </code></pre>
1630     * <p>All green pixels are 100% green. All red/blue pixels are black.</p>
1631     * <pre><code>android.testPatternData = [0xFFFFFFFF, 0, 0xFFFFFFFF, 0]
1632     * </code></pre>
1633     * <p>All red pixels are 100% red. Only the odd green pixels
1634     * are 100% green. All blue pixels are 100% black.</p>
1635     *
1636     * @see CaptureRequest#SENSOR_TEST_PATTERN_DATA
1637     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
1638     */
1639    public static final int SENSOR_TEST_PATTERN_MODE_SOLID_COLOR = 1;
1640
1641    /**
1642     * <p>All pixel data is replaced with an 8-bar color pattern.</p>
1643     * <p>The vertical bars (left-to-right) are as follows:</p>
1644     * <ul>
1645     * <li>100% white</li>
1646     * <li>yellow</li>
1647     * <li>cyan</li>
1648     * <li>green</li>
1649     * <li>magenta</li>
1650     * <li>red</li>
1651     * <li>blue</li>
1652     * <li>black</li>
1653     * </ul>
1654     * <p>In general the image would look like the following:</p>
1655     * <pre><code>W Y C G M R B K
1656     * W Y C G M R B K
1657     * W Y C G M R B K
1658     * W Y C G M R B K
1659     * W Y C G M R B K
1660     * . . . . . . . .
1661     * . . . . . . . .
1662     * . . . . . . . .
1663     *
1664     * (B = Blue, K = Black)
1665     * </code></pre>
1666     * <p>Each bar should take up 1/8 of the sensor pixel array width.
1667     * When this is not possible, the bar size should be rounded
1668     * down to the nearest integer and the pattern can repeat
1669     * on the right side.</p>
1670     * <p>Each bar's height must always take up the full sensor
1671     * pixel array height.</p>
1672     * <p>Each pixel in this test pattern must be set to either
1673     * 0% intensity or 100% intensity.</p>
1674     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
1675     */
1676    public static final int SENSOR_TEST_PATTERN_MODE_COLOR_BARS = 2;
1677
1678    /**
1679     * <p>The test pattern is similar to COLOR_BARS, except that
1680     * each bar should start at its specified color at the top,
1681     * and fade to gray at the bottom.</p>
1682     * <p>Furthermore each bar is further subdivided into a left and
1683     * right half. The left half should have a smooth gradient,
1684     * and the right half should have a quantized gradient.</p>
1685     * <p>In particular, the right half's should consist of blocks of the
1686     * same color for 1/16th active sensor pixel array width.</p>
1687     * <p>The least significant bits in the quantized gradient should
1688     * be copied from the most significant bits of the smooth gradient.</p>
1689     * <p>The height of each bar should always be a multiple of 128.
1690     * When this is not the case, the pattern should repeat at the bottom
1691     * of the image.</p>
1692     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
1693     */
1694    public static final int SENSOR_TEST_PATTERN_MODE_COLOR_BARS_FADE_TO_GRAY = 3;
1695
1696    /**
1697     * <p>All pixel data is replaced by a pseudo-random sequence
1698     * generated from a PN9 512-bit sequence (typically implemented
1699     * in hardware with a linear feedback shift register).</p>
1700     * <p>The generator should be reset at the beginning of each frame,
1701     * and thus each subsequent raw frame with this test pattern should
1702     * be exactly the same as the last.</p>
1703     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
1704     */
1705    public static final int SENSOR_TEST_PATTERN_MODE_PN9 = 4;
1706
1707    /**
1708     * <p>The first custom test pattern. All custom patterns that are
1709     * available only on this camera device are at least this numeric
1710     * value.</p>
1711     * <p>All of the custom test patterns will be static
1712     * (that is the raw image must not vary from frame to frame).</p>
1713     * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE
1714     */
1715    public static final int SENSOR_TEST_PATTERN_MODE_CUSTOM1 = 256;
1716
1717    //
1718    // Enumeration values for CaptureRequest#SHADING_MODE
1719    //
1720
1721    /**
1722     * <p>No lens shading correction is applied.</p>
1723     * @see CaptureRequest#SHADING_MODE
1724     */
1725    public static final int SHADING_MODE_OFF = 0;
1726
1727    /**
1728     * <p>Apply lens shading corrections, without slowing
1729     * frame rate relative to sensor raw output</p>
1730     * @see CaptureRequest#SHADING_MODE
1731     */
1732    public static final int SHADING_MODE_FAST = 1;
1733
1734    /**
1735     * <p>Apply high-quality lens shading correction, at the
1736     * cost of reduced frame rate.</p>
1737     * @see CaptureRequest#SHADING_MODE
1738     */
1739    public static final int SHADING_MODE_HIGH_QUALITY = 2;
1740
1741    //
1742    // Enumeration values for CaptureRequest#STATISTICS_FACE_DETECT_MODE
1743    //
1744
1745    /**
1746     * <p>Do not include face detection statistics in capture
1747     * results.</p>
1748     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
1749     */
1750    public static final int STATISTICS_FACE_DETECT_MODE_OFF = 0;
1751
1752    /**
1753     * <p>Return face rectangle and confidence values only.</p>
1754     * <p>In this mode, only android.statistics.faceRectangles and
1755     * android.statistics.faceScores outputs are valid.</p>
1756     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
1757     */
1758    public static final int STATISTICS_FACE_DETECT_MODE_SIMPLE = 1;
1759
1760    /**
1761     * <p>Return all face
1762     * metadata.</p>
1763     * <p>In this mode,
1764     * android.statistics.faceRectangles,
1765     * android.statistics.faceScores,
1766     * android.statistics.faceIds, and
1767     * android.statistics.faceLandmarks outputs are valid.</p>
1768     * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE
1769     */
1770    public static final int STATISTICS_FACE_DETECT_MODE_FULL = 2;
1771
1772    //
1773    // Enumeration values for CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE
1774    //
1775
1776    /**
1777     * <p>Do not include a lens shading map in the capture result.</p>
1778     * @see CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE
1779     */
1780    public static final int STATISTICS_LENS_SHADING_MAP_MODE_OFF = 0;
1781
1782    /**
1783     * <p>Include a lens shading map in the capture result.</p>
1784     * @see CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE
1785     */
1786    public static final int STATISTICS_LENS_SHADING_MAP_MODE_ON = 1;
1787
1788    //
1789    // Enumeration values for CaptureRequest#TONEMAP_MODE
1790    //
1791
1792    /**
1793     * <p>Use the tone mapping curve specified in
1794     * the {@link CaptureRequest#TONEMAP_CURVE android.tonemap.curve}* entries.</p>
1795     * <p>All color enhancement and tonemapping must be disabled, except
1796     * for applying the tonemapping curve specified by
1797     * {@link CaptureRequest#TONEMAP_CURVE android.tonemap.curve}.</p>
1798     * <p>Must not slow down frame rate relative to raw
1799     * sensor output.</p>
1800     *
1801     * @see CaptureRequest#TONEMAP_CURVE
1802     * @see CaptureRequest#TONEMAP_MODE
1803     */
1804    public static final int TONEMAP_MODE_CONTRAST_CURVE = 0;
1805
1806    /**
1807     * <p>Advanced gamma mapping and color enhancement may be applied, without
1808     * reducing frame rate compared to raw sensor output.</p>
1809     * @see CaptureRequest#TONEMAP_MODE
1810     */
1811    public static final int TONEMAP_MODE_FAST = 1;
1812
1813    /**
1814     * <p>High-quality gamma mapping and color enhancement will be applied, at
1815     * the cost of reduced frame rate compared to raw sensor output.</p>
1816     * @see CaptureRequest#TONEMAP_MODE
1817     */
1818    public static final int TONEMAP_MODE_HIGH_QUALITY = 2;
1819
1820    //
1821    // Enumeration values for CaptureResult#CONTROL_AE_STATE
1822    //
1823
1824    /**
1825     * <p>AE is off or recently reset.</p>
1826     * <p>When a camera device is opened, it starts in
1827     * this state. This is a transient state, the camera device may skip reporting
1828     * this state in capture result.</p>
1829     * @see CaptureResult#CONTROL_AE_STATE
1830     */
1831    public static final int CONTROL_AE_STATE_INACTIVE = 0;
1832
1833    /**
1834     * <p>AE doesn't yet have a good set of control values
1835     * for the current scene.</p>
1836     * <p>This is a transient state, the camera device may skip
1837     * reporting this state in capture result.</p>
1838     * @see CaptureResult#CONTROL_AE_STATE
1839     */
1840    public static final int CONTROL_AE_STATE_SEARCHING = 1;
1841
1842    /**
1843     * <p>AE has a good set of control values for the
1844     * current scene.</p>
1845     * @see CaptureResult#CONTROL_AE_STATE
1846     */
1847    public static final int CONTROL_AE_STATE_CONVERGED = 2;
1848
1849    /**
1850     * <p>AE has been locked.</p>
1851     * @see CaptureResult#CONTROL_AE_STATE
1852     */
1853    public static final int CONTROL_AE_STATE_LOCKED = 3;
1854
1855    /**
1856     * <p>AE has a good set of control values, but flash
1857     * needs to be fired for good quality still
1858     * capture.</p>
1859     * @see CaptureResult#CONTROL_AE_STATE
1860     */
1861    public static final int CONTROL_AE_STATE_FLASH_REQUIRED = 4;
1862
1863    /**
1864     * <p>AE has been asked to do a precapture sequence
1865     * and is currently executing it.</p>
1866     * <p>Precapture can be triggered through setting
1867     * {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} to START.</p>
1868     * <p>Once PRECAPTURE completes, AE will transition to CONVERGED
1869     * or FLASH_REQUIRED as appropriate. This is a transient
1870     * state, the camera device may skip reporting this state in
1871     * capture result.</p>
1872     *
1873     * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER
1874     * @see CaptureResult#CONTROL_AE_STATE
1875     */
1876    public static final int CONTROL_AE_STATE_PRECAPTURE = 5;
1877
1878    //
1879    // Enumeration values for CaptureResult#CONTROL_AF_STATE
1880    //
1881
1882    /**
1883     * <p>AF is off or has not yet tried to scan/been asked
1884     * to scan.</p>
1885     * <p>When a camera device is opened, it starts in this
1886     * state. This is a transient state, the camera device may
1887     * skip reporting this state in capture
1888     * result.</p>
1889     * @see CaptureResult#CONTROL_AF_STATE
1890     */
1891    public static final int CONTROL_AF_STATE_INACTIVE = 0;
1892
1893    /**
1894     * <p>AF is currently performing an AF scan initiated the
1895     * camera device in a continuous autofocus mode.</p>
1896     * <p>Only used by CONTINUOUS_* AF modes. This is a transient
1897     * state, the camera device may skip reporting this state in
1898     * capture result.</p>
1899     * @see CaptureResult#CONTROL_AF_STATE
1900     */
1901    public static final int CONTROL_AF_STATE_PASSIVE_SCAN = 1;
1902
1903    /**
1904     * <p>AF currently believes it is in focus, but may
1905     * restart scanning at any time.</p>
1906     * <p>Only used by CONTINUOUS_* AF modes. This is a transient
1907     * state, the camera device may skip reporting this state in
1908     * capture result.</p>
1909     * @see CaptureResult#CONTROL_AF_STATE
1910     */
1911    public static final int CONTROL_AF_STATE_PASSIVE_FOCUSED = 2;
1912
1913    /**
1914     * <p>AF is performing an AF scan because it was
1915     * triggered by AF trigger.</p>
1916     * <p>Only used by AUTO or MACRO AF modes. This is a transient
1917     * state, the camera device may skip reporting this state in
1918     * capture result.</p>
1919     * @see CaptureResult#CONTROL_AF_STATE
1920     */
1921    public static final int CONTROL_AF_STATE_ACTIVE_SCAN = 3;
1922
1923    /**
1924     * <p>AF believes it is focused correctly and has locked
1925     * focus.</p>
1926     * <p>This state is reached only after an explicit START AF trigger has been
1927     * sent ({@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}), when good focus has been obtained.</p>
1928     * <p>The lens will remain stationary until the AF mode ({@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}) is changed or
1929     * a new AF trigger is sent to the camera device ({@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}).</p>
1930     *
1931     * @see CaptureRequest#CONTROL_AF_MODE
1932     * @see CaptureRequest#CONTROL_AF_TRIGGER
1933     * @see CaptureResult#CONTROL_AF_STATE
1934     */
1935    public static final int CONTROL_AF_STATE_FOCUSED_LOCKED = 4;
1936
1937    /**
1938     * <p>AF has failed to focus successfully and has locked
1939     * focus.</p>
1940     * <p>This state is reached only after an explicit START AF trigger has been
1941     * sent ({@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}), when good focus cannot be obtained.</p>
1942     * <p>The lens will remain stationary until the AF mode ({@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}) is changed or
1943     * a new AF trigger is sent to the camera device ({@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger}).</p>
1944     *
1945     * @see CaptureRequest#CONTROL_AF_MODE
1946     * @see CaptureRequest#CONTROL_AF_TRIGGER
1947     * @see CaptureResult#CONTROL_AF_STATE
1948     */
1949    public static final int CONTROL_AF_STATE_NOT_FOCUSED_LOCKED = 5;
1950
1951    /**
1952     * <p>AF finished a passive scan without finding focus,
1953     * and may restart scanning at any time.</p>
1954     * <p>Only used by CONTINUOUS_* AF modes. This is a transient state, the camera
1955     * device may skip reporting this state in capture result.</p>
1956     * @see CaptureResult#CONTROL_AF_STATE
1957     */
1958    public static final int CONTROL_AF_STATE_PASSIVE_UNFOCUSED = 6;
1959
1960    //
1961    // Enumeration values for CaptureResult#CONTROL_AWB_STATE
1962    //
1963
1964    /**
1965     * <p>AWB is not in auto mode, or has not yet started metering.</p>
1966     * <p>When a camera device is opened, it starts in this
1967     * state. This is a transient state, the camera device may
1968     * skip reporting this state in capture
1969     * result.</p>
1970     * @see CaptureResult#CONTROL_AWB_STATE
1971     */
1972    public static final int CONTROL_AWB_STATE_INACTIVE = 0;
1973
1974    /**
1975     * <p>AWB doesn't yet have a good set of control
1976     * values for the current scene.</p>
1977     * <p>This is a transient state, the camera device
1978     * may skip reporting this state in capture result.</p>
1979     * @see CaptureResult#CONTROL_AWB_STATE
1980     */
1981    public static final int CONTROL_AWB_STATE_SEARCHING = 1;
1982
1983    /**
1984     * <p>AWB has a good set of control values for the
1985     * current scene.</p>
1986     * @see CaptureResult#CONTROL_AWB_STATE
1987     */
1988    public static final int CONTROL_AWB_STATE_CONVERGED = 2;
1989
1990    /**
1991     * <p>AWB has been locked.</p>
1992     * @see CaptureResult#CONTROL_AWB_STATE
1993     */
1994    public static final int CONTROL_AWB_STATE_LOCKED = 3;
1995
1996    //
1997    // Enumeration values for CaptureResult#FLASH_STATE
1998    //
1999
2000    /**
2001     * <p>No flash on camera.</p>
2002     * @see CaptureResult#FLASH_STATE
2003     */
2004    public static final int FLASH_STATE_UNAVAILABLE = 0;
2005
2006    /**
2007     * <p>Flash is charging and cannot be fired.</p>
2008     * @see CaptureResult#FLASH_STATE
2009     */
2010    public static final int FLASH_STATE_CHARGING = 1;
2011
2012    /**
2013     * <p>Flash is ready to fire.</p>
2014     * @see CaptureResult#FLASH_STATE
2015     */
2016    public static final int FLASH_STATE_READY = 2;
2017
2018    /**
2019     * <p>Flash fired for this capture.</p>
2020     * @see CaptureResult#FLASH_STATE
2021     */
2022    public static final int FLASH_STATE_FIRED = 3;
2023
2024    /**
2025     * <p>Flash partially illuminated this frame.</p>
2026     * <p>This is usually due to the next or previous frame having
2027     * the flash fire, and the flash spilling into this capture
2028     * due to hardware limitations.</p>
2029     * @see CaptureResult#FLASH_STATE
2030     */
2031    public static final int FLASH_STATE_PARTIAL = 4;
2032
2033    //
2034    // Enumeration values for CaptureResult#LENS_STATE
2035    //
2036
2037    /**
2038     * <p>The lens parameters ({@link CaptureRequest#LENS_FOCAL_LENGTH android.lens.focalLength}, {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance},
2039     * {@link CaptureRequest#LENS_FILTER_DENSITY android.lens.filterDensity} and {@link CaptureRequest#LENS_APERTURE android.lens.aperture}) are not changing.</p>
2040     *
2041     * @see CaptureRequest#LENS_APERTURE
2042     * @see CaptureRequest#LENS_FILTER_DENSITY
2043     * @see CaptureRequest#LENS_FOCAL_LENGTH
2044     * @see CaptureRequest#LENS_FOCUS_DISTANCE
2045     * @see CaptureResult#LENS_STATE
2046     */
2047    public static final int LENS_STATE_STATIONARY = 0;
2048
2049    /**
2050     * <p>One or several of the lens parameters
2051     * ({@link CaptureRequest#LENS_FOCAL_LENGTH android.lens.focalLength}, {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance},
2052     * {@link CaptureRequest#LENS_FILTER_DENSITY android.lens.filterDensity} or {@link CaptureRequest#LENS_APERTURE android.lens.aperture}) is
2053     * currently changing.</p>
2054     *
2055     * @see CaptureRequest#LENS_APERTURE
2056     * @see CaptureRequest#LENS_FILTER_DENSITY
2057     * @see CaptureRequest#LENS_FOCAL_LENGTH
2058     * @see CaptureRequest#LENS_FOCUS_DISTANCE
2059     * @see CaptureResult#LENS_STATE
2060     */
2061    public static final int LENS_STATE_MOVING = 1;
2062
2063    //
2064    // Enumeration values for CaptureResult#STATISTICS_SCENE_FLICKER
2065    //
2066
2067    /**
2068     * <p>The camera device does not detect any flickering illumination
2069     * in the current scene.</p>
2070     * @see CaptureResult#STATISTICS_SCENE_FLICKER
2071     */
2072    public static final int STATISTICS_SCENE_FLICKER_NONE = 0;
2073
2074    /**
2075     * <p>The camera device detects illumination flickering at 50Hz
2076     * in the current scene.</p>
2077     * @see CaptureResult#STATISTICS_SCENE_FLICKER
2078     */
2079    public static final int STATISTICS_SCENE_FLICKER_50HZ = 1;
2080
2081    /**
2082     * <p>The camera device detects illumination flickering at 60Hz
2083     * in the current scene.</p>
2084     * @see CaptureResult#STATISTICS_SCENE_FLICKER
2085     */
2086    public static final int STATISTICS_SCENE_FLICKER_60HZ = 2;
2087
2088    //
2089    // Enumeration values for CaptureResult#SYNC_FRAME_NUMBER
2090    //
2091
2092    /**
2093     * <p>The current result is not yet fully synchronized to any request.</p>
2094     * <p>Synchronization is in progress, and reading metadata from this
2095     * result may include a mix of data that have taken effect since the
2096     * last synchronization time.</p>
2097     * <p>In some future result, within {@link CameraCharacteristics#SYNC_MAX_LATENCY android.sync.maxLatency} frames,
2098     * this value will update to the actual frame number frame number
2099     * the result is guaranteed to be synchronized to (as long as the
2100     * request settings remain constant).</p>
2101     *
2102     * @see CameraCharacteristics#SYNC_MAX_LATENCY
2103     * @see CaptureResult#SYNC_FRAME_NUMBER
2104     * @hide
2105     */
2106    public static final int SYNC_FRAME_NUMBER_CONVERGING = -1;
2107
2108    /**
2109     * <p>The current result's synchronization status is unknown.</p>
2110     * <p>The result may have already converged, or it may be in
2111     * progress.  Reading from this result may include some mix
2112     * of settings from past requests.</p>
2113     * <p>After a settings change, the new settings will eventually all
2114     * take effect for the output buffers and results. However, this
2115     * value will not change when that happens. Altering settings
2116     * rapidly may provide outcomes using mixes of settings from recent
2117     * requests.</p>
2118     * <p>This value is intended primarily for backwards compatibility with
2119     * the older camera implementations (for android.hardware.Camera).</p>
2120     * @see CaptureResult#SYNC_FRAME_NUMBER
2121     * @hide
2122     */
2123    public static final int SYNC_FRAME_NUMBER_UNKNOWN = -2;
2124
2125    /*~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
2126     * End generated code
2127     *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~O@*/
2128
2129}
2130