CameraCharacteristics.java revision 399f05d1e7182ef6c88d30d3b98a467b845ca7c4
1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.hardware.camera2;
18
19import android.hardware.camera2.impl.CameraMetadataNative;
20
21import java.util.Collections;
22import java.util.List;
23
24/**
25 * <p>The properties describing a
26 * {@link CameraDevice CameraDevice}.</p>
27 *
28 * <p>These properties are fixed for a given CameraDevice, and can be queried
29 * through the {@link CameraManager CameraManager}
30 * interface in addition to through the CameraDevice interface.</p>
31 *
32 * @see CameraDevice
33 * @see CameraManager
34 */
35public final class CameraCharacteristics extends CameraMetadata {
36
37    private final CameraMetadataNative mProperties;
38    private List<Key<?>> mAvailableRequestKeys;
39    private List<Key<?>> mAvailableResultKeys;
40
41    /**
42     * Takes ownership of the passed-in properties object
43     * @hide
44     */
45    public CameraCharacteristics(CameraMetadataNative properties) {
46        mProperties = properties;
47    }
48
49    @Override
50    public <T> T get(Key<T> key) {
51        return mProperties.get(key);
52    }
53
54    /**
55     * Returns the list of keys supported by this {@link CameraDevice} for querying
56     * with a {@link CaptureRequest}.
57     *
58     * <p>The list returned is not modifiable, so any attempts to modify it will throw
59     * a {@code UnsupportedOperationException}.</p>
60     *
61     * <p>Each key is only listed once in the list. The order of the keys is undefined.</p>
62     *
63     * <p>Note that there is no {@code getAvailableCameraCharacteristicsKeys()} -- use
64     * {@link #getKeys()} instead.</p>
65     *
66     * @return List of keys supported by this CameraDevice for CaptureRequests.
67     */
68    public List<Key<?>> getAvailableCaptureRequestKeys() {
69        if (mAvailableRequestKeys == null) {
70            mAvailableRequestKeys = getAvailableKeyList(CaptureRequest.class);
71        }
72        return mAvailableRequestKeys;
73    }
74
75    /**
76     * Returns the list of keys supported by this {@link CameraDevice} for querying
77     * with a {@link CaptureResult}.
78     *
79     * <p>The list returned is not modifiable, so any attempts to modify it will throw
80     * a {@code UnsupportedOperationException}.</p>
81     *
82     * <p>Each key is only listed once in the list. The order of the keys is undefined.</p>
83     *
84     * <p>Note that there is no {@code getAvailableCameraCharacteristicsKeys()} -- use
85     * {@link #getKeys()} instead.</p>
86     *
87     * @return List of keys supported by this CameraDevice for CaptureResults.
88     */
89    public List<Key<?>> getAvailableCaptureResultKeys() {
90        if (mAvailableResultKeys == null) {
91            mAvailableResultKeys = getAvailableKeyList(CaptureResult.class);
92        }
93        return mAvailableResultKeys;
94    }
95
96    /**
97     * Returns the list of keys supported by this {@link CameraDevice} by metadataClass.
98     *
99     * <p>The list returned is not modifiable, so any attempts to modify it will throw
100     * a {@code UnsupportedOperationException}.</p>
101     *
102     * <p>Each key is only listed once in the list. The order of the keys is undefined.</p>
103     *
104     * @param metadataClass The subclass of CameraMetadata that you want to get the keys for.
105     *
106     * @return List of keys supported by this CameraDevice for metadataClass.
107     *
108     * @throws IllegalArgumentException if metadataClass is not a subclass of CameraMetadata
109     */
110    private <T extends CameraMetadata> List<Key<?>> getAvailableKeyList(Class<T> metadataClass) {
111
112        if (metadataClass.equals(CameraMetadata.class)) {
113            throw new AssertionError(
114                    "metadataClass must be a strict subclass of CameraMetadata");
115        } else if (!CameraMetadata.class.isAssignableFrom(metadataClass)) {
116            throw new AssertionError(
117                    "metadataClass must be a subclass of CameraMetadata");
118        }
119
120        return Collections.unmodifiableList(getKeysStatic(metadataClass, /*instance*/null));
121    }
122
123    /*@O~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
124     * The key entries below this point are generated from metadata
125     * definitions in /system/media/camera/docs. Do not modify by hand or
126     * modify the comment blocks at the start or end.
127     *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~*/
128
129
130    /**
131     * <p>The set of auto-exposure antibanding modes that are
132     * supported by this camera device.</p>
133     * <p>Not all of the auto-exposure anti-banding modes may be
134     * supported by a given camera device. This field lists the
135     * valid anti-banding modes that the application may request
136     * for this camera device; they must include AUTO.</p>
137     */
138    public static final Key<byte[]> CONTROL_AE_AVAILABLE_ANTIBANDING_MODES =
139            new Key<byte[]>("android.control.aeAvailableAntibandingModes", byte[].class);
140
141    /**
142     * <p>The set of auto-exposure modes that are supported by this
143     * camera device.</p>
144     * <p>Not all the auto-exposure modes may be supported by a
145     * given camera device, especially if no flash unit is
146     * available. This entry lists the valid modes for
147     * {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} for this camera device.</p>
148     * <p>All camera devices support ON, and all camera devices with
149     * flash units support ON_AUTO_FLASH and
150     * ON_ALWAYS_FLASH.</p>
151     * <p>Full-capability camera devices always support OFF mode,
152     * which enables application control of camera exposure time,
153     * sensitivity, and frame duration.</p>
154     *
155     * @see CaptureRequest#CONTROL_AE_MODE
156     */
157    public static final Key<byte[]> CONTROL_AE_AVAILABLE_MODES =
158            new Key<byte[]>("android.control.aeAvailableModes", byte[].class);
159
160    /**
161     * <p>List of frame rate ranges supported by the
162     * AE algorithm/hardware</p>
163     */
164    public static final Key<int[]> CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES =
165            new Key<int[]>("android.control.aeAvailableTargetFpsRanges", int[].class);
166
167    /**
168     * <p>Maximum and minimum exposure compensation
169     * setting, in counts of
170     * android.control.aeCompensationStepSize</p>
171     */
172    public static final Key<int[]> CONTROL_AE_COMPENSATION_RANGE =
173            new Key<int[]>("android.control.aeCompensationRange", int[].class);
174
175    /**
176     * <p>Smallest step by which exposure compensation
177     * can be changed</p>
178     */
179    public static final Key<Rational> CONTROL_AE_COMPENSATION_STEP =
180            new Key<Rational>("android.control.aeCompensationStep", Rational.class);
181
182    /**
183     * <p>List of AF modes that can be
184     * selected with {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}.</p>
185     *
186     * @see CaptureRequest#CONTROL_AF_MODE
187     * <p>Not all the auto-focus modes may be supported by a
188     * given camera device. This entry lists the valid modes for
189     * {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode} for this camera device.</p>
190     * <p>All camera devices will support OFF mode, and all camera devices with
191     * adjustable focuser units (<code>{@link CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance} &gt; 0</code>)
192     * will support AUTO mode.</p>
193     *
194     * @see CaptureRequest#CONTROL_AF_MODE
195     * @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE
196     */
197    public static final Key<byte[]> CONTROL_AF_AVAILABLE_MODES =
198            new Key<byte[]>("android.control.afAvailableModes", byte[].class);
199
200    /**
201     * <p>what subset of the full color effect enum
202     * list is supported</p>
203     */
204    public static final Key<byte[]> CONTROL_AVAILABLE_EFFECTS =
205            new Key<byte[]>("android.control.availableEffects", byte[].class);
206
207    /**
208     * <p>what subset of the scene mode enum list is
209     * supported.</p>
210     */
211    public static final Key<byte[]> CONTROL_AVAILABLE_SCENE_MODES =
212            new Key<byte[]>("android.control.availableSceneModes", byte[].class);
213
214    /**
215     * <p>List of video stabilization modes that can
216     * be supported</p>
217     */
218    public static final Key<byte[]> CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES =
219            new Key<byte[]>("android.control.availableVideoStabilizationModes", byte[].class);
220
221    /**
222     * <p>The set of auto-white-balance modes ({@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode})
223     * that are supported by this camera device.</p>
224     *
225     * @see CaptureRequest#CONTROL_AWB_MODE
226     * <p>Not all the auto-white-balance modes may be supported by a
227     * given camera device. This entry lists the valid modes for
228     * {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} for this camera device.</p>
229     * <p>All camera devices will support ON mode.</p>
230     * <p>Full-capability camera devices will always support OFF mode,
231     * which enables application control of white balance, by using
232     * {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform} and {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains}({@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} must be set to TRANSFORM_MATRIX).</p>
233     *
234     * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM
235     * @see CaptureRequest#COLOR_CORRECTION_MODE
236     * @see CaptureRequest#CONTROL_AWB_MODE
237     * @see CaptureRequest#COLOR_CORRECTION_GAINS
238     */
239    public static final Key<byte[]> CONTROL_AWB_AVAILABLE_MODES =
240            new Key<byte[]>("android.control.awbAvailableModes", byte[].class);
241
242    /**
243     * <p>For AE, AWB, and AF, how many individual
244     * regions can be listed for metering?</p>
245     */
246    public static final Key<Integer> CONTROL_MAX_REGIONS =
247            new Key<Integer>("android.control.maxRegions", int.class);
248
249    /**
250     * <p>Whether this camera has a
251     * flash</p>
252     * <p>If no flash, none of the flash controls do
253     * anything. All other metadata should return 0</p>
254     */
255    public static final Key<Byte> FLASH_INFO_AVAILABLE =
256            new Key<Byte>("android.flash.info.available", byte.class);
257
258    /**
259     * <p>Supported resolutions for the JPEG thumbnail</p>
260     * <p>Below condiditions must be satisfied for this size list:</p>
261     * <ul>
262     * <li>The sizes must be sorted by increasing pixel area (width x height).
263     * If several resolutions have the same area, they must be sorted by increasing width.</li>
264     * <li>The aspect ratio of the largest thumbnail size must be same as the
265     * aspect ratio of largest size in {@link CameraCharacteristics#SCALER_AVAILABLE_JPEG_SIZES android.scaler.availableJpegSizes}.
266     * The largest size is defined as the size that has the largest pixel area
267     * in a given size list.</li>
268     * <li>Each size in {@link CameraCharacteristics#SCALER_AVAILABLE_JPEG_SIZES android.scaler.availableJpegSizes} must have at least
269     * one corresponding size that has the same aspect ratio in availableThumbnailSizes,
270     * and vice versa.</li>
271     * <li>All non (0, 0) sizes must have non-zero widths and heights.</li>
272     * </ul>
273     *
274     * @see CameraCharacteristics#SCALER_AVAILABLE_JPEG_SIZES
275     */
276    public static final Key<android.hardware.camera2.Size[]> JPEG_AVAILABLE_THUMBNAIL_SIZES =
277            new Key<android.hardware.camera2.Size[]>("android.jpeg.availableThumbnailSizes", android.hardware.camera2.Size[].class);
278
279    /**
280     * <p>List of supported aperture
281     * values.</p>
282     * <p>If the camera device doesn't support variable apertures,
283     * listed value will be the fixed aperture.</p>
284     * <p>If the camera device supports variable apertures, the aperture value
285     * in this list will be sorted in ascending order.</p>
286     */
287    public static final Key<float[]> LENS_INFO_AVAILABLE_APERTURES =
288            new Key<float[]>("android.lens.info.availableApertures", float[].class);
289
290    /**
291     * <p>List of supported ND filter
292     * values</p>
293     * <p>If not available, only setting is 0. Otherwise,
294     * lists the available exposure index values for dimming
295     * (2 would mean the filter is set to reduce incoming
296     * light by two stops)</p>
297     */
298    public static final Key<float[]> LENS_INFO_AVAILABLE_FILTER_DENSITIES =
299            new Key<float[]>("android.lens.info.availableFilterDensities", float[].class);
300
301    /**
302     * <p>If fitted with optical zoom, what focal
303     * lengths are available. If not, the static focal
304     * length</p>
305     * <p>If optical zoom not supported, only one value
306     * should be reported</p>
307     */
308    public static final Key<float[]> LENS_INFO_AVAILABLE_FOCAL_LENGTHS =
309            new Key<float[]>("android.lens.info.availableFocalLengths", float[].class);
310
311    /**
312     * <p>List of supported optical image
313     * stabilization modes</p>
314     */
315    public static final Key<byte[]> LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION =
316            new Key<byte[]>("android.lens.info.availableOpticalStabilization", byte[].class);
317
318    /**
319     * <p>Hyperfocal distance for this lens; set to
320     * 0 if fixed focus</p>
321     * <p>The hyperfocal distance is used for the old
322     * API's 'fixed' setting</p>
323     */
324    public static final Key<Float> LENS_INFO_HYPERFOCAL_DISTANCE =
325            new Key<Float>("android.lens.info.hyperfocalDistance", float.class);
326
327    /**
328     * <p>Shortest distance from frontmost surface
329     * of the lens that can be focused correctly</p>
330     * <p>If the lens is fixed-focus, this should be
331     * 0</p>
332     */
333    public static final Key<Float> LENS_INFO_MINIMUM_FOCUS_DISTANCE =
334            new Key<Float>("android.lens.info.minimumFocusDistance", float.class);
335
336    /**
337     * <p>Dimensions of lens shading map.</p>
338     * <p>The map should be on the order of 30-40 rows and columns, and
339     * must be smaller than 64x64.</p>
340     */
341    public static final Key<android.hardware.camera2.Size> LENS_INFO_SHADING_MAP_SIZE =
342            new Key<android.hardware.camera2.Size>("android.lens.info.shadingMapSize", android.hardware.camera2.Size.class);
343
344    /**
345     * <p>Direction the camera faces relative to
346     * device screen</p>
347     * @see #LENS_FACING_FRONT
348     * @see #LENS_FACING_BACK
349     */
350    public static final Key<Integer> LENS_FACING =
351            new Key<Integer>("android.lens.facing", int.class);
352
353    /**
354     * <p>If set to 1, the HAL will always split result
355     * metadata for a single capture into multiple buffers,
356     * returned using multiple process_capture_result calls.</p>
357     * <p>Does not need to be listed in static
358     * metadata. Support for partial results will be reworked in
359     * future versions of camera service. This quirk will stop
360     * working at that point; DO NOT USE without careful
361     * consideration of future support.</p>
362     * <p><b>Optional</b> - This value may be null on some devices.</p>
363     * @hide
364     */
365    public static final Key<Byte> QUIRKS_USE_PARTIAL_RESULT =
366            new Key<Byte>("android.quirks.usePartialResult", byte.class);
367
368    /**
369     * <p>How many output streams can be allocated at
370     * the same time for each type of stream</p>
371     * <p>Video snapshot with preview callbacks requires 3
372     * processed streams (preview, record, app callbacks) and
373     * one JPEG stream (snapshot)</p>
374     */
375    public static final Key<int[]> REQUEST_MAX_NUM_OUTPUT_STREAMS =
376            new Key<int[]>("android.request.maxNumOutputStreams", int[].class);
377
378    /**
379     * <p>List of app-visible formats</p>
380     */
381    public static final Key<int[]> SCALER_AVAILABLE_FORMATS =
382            new Key<int[]>("android.scaler.availableFormats", int[].class);
383
384    /**
385     * <p>The minimum frame duration that is supported
386     * for each resolution in availableJpegSizes. Should
387     * correspond to the frame duration when only that JPEG
388     * stream is active and captured in a burst, with all
389     * processing set to FAST</p>
390     * <p>When multiple streams are configured, the minimum
391     * frame duration will be &gt;= max(individual stream min
392     * durations)</p>
393     */
394    public static final Key<long[]> SCALER_AVAILABLE_JPEG_MIN_DURATIONS =
395            new Key<long[]>("android.scaler.availableJpegMinDurations", long[].class);
396
397    /**
398     * <p>The resolutions available for output from
399     * the JPEG block. Listed as width x height</p>
400     */
401    public static final Key<android.hardware.camera2.Size[]> SCALER_AVAILABLE_JPEG_SIZES =
402            new Key<android.hardware.camera2.Size[]>("android.scaler.availableJpegSizes", android.hardware.camera2.Size[].class);
403
404    /**
405     * <p>The maximum ratio between active area width
406     * and crop region width, or between active area height and
407     * crop region height, if the crop region height is larger
408     * than width</p>
409     */
410    public static final Key<Float> SCALER_AVAILABLE_MAX_DIGITAL_ZOOM =
411            new Key<Float>("android.scaler.availableMaxDigitalZoom", float.class);
412
413    /**
414     * <p>The minimum frame duration that is supported
415     * for each resolution in availableProcessedSizes. Should
416     * correspond to the frame duration when only that processed
417     * stream is active, with all processing set to
418     * FAST</p>
419     * <p>When multiple streams are configured, the minimum
420     * frame duration will be &gt;= max(individual stream min
421     * durations)</p>
422     */
423    public static final Key<long[]> SCALER_AVAILABLE_PROCESSED_MIN_DURATIONS =
424            new Key<long[]>("android.scaler.availableProcessedMinDurations", long[].class);
425
426    /**
427     * <p>The resolutions available for use with
428     * processed output streams, such as YV12, NV12, and
429     * platform opaque YUV/RGB streams to the GPU or video
430     * encoders. Listed as width, height</p>
431     * <p>The actual supported resolution list may be limited by
432     * consumer end points for different use cases. For example, for
433     * recording use case, the largest supported resolution may be
434     * limited by max supported size from encoder, for preview use
435     * case, the largest supported resolution may be limited by max
436     * resolution SurfaceTexture/SurfaceView can support.</p>
437     */
438    public static final Key<android.hardware.camera2.Size[]> SCALER_AVAILABLE_PROCESSED_SIZES =
439            new Key<android.hardware.camera2.Size[]>("android.scaler.availableProcessedSizes", android.hardware.camera2.Size[].class);
440
441    /**
442     * <p>Area of raw data which corresponds to only
443     * active pixels; smaller or equal to
444     * pixelArraySize.</p>
445     */
446    public static final Key<android.graphics.Rect> SENSOR_INFO_ACTIVE_ARRAY_SIZE =
447            new Key<android.graphics.Rect>("android.sensor.info.activeArraySize", android.graphics.Rect.class);
448
449    /**
450     * <p>Range of valid sensitivities</p>
451     */
452    public static final Key<int[]> SENSOR_INFO_SENSITIVITY_RANGE =
453            new Key<int[]>("android.sensor.info.sensitivityRange", int[].class);
454
455    /**
456     * <p>Range of valid exposure
457     * times</p>
458     */
459    public static final Key<long[]> SENSOR_INFO_EXPOSURE_TIME_RANGE =
460            new Key<long[]>("android.sensor.info.exposureTimeRange", long[].class);
461
462    /**
463     * <p>Maximum possible frame duration (minimum frame
464     * rate)</p>
465     * <p>Minimum duration is a function of resolution,
466     * processing settings. See
467     * android.scaler.availableProcessedMinDurations
468     * android.scaler.availableJpegMinDurations
469     * android.scaler.availableRawMinDurations</p>
470     */
471    public static final Key<Long> SENSOR_INFO_MAX_FRAME_DURATION =
472            new Key<Long>("android.sensor.info.maxFrameDuration", long.class);
473
474    /**
475     * <p>The physical dimensions of the full pixel
476     * array</p>
477     * <p>Needed for FOV calculation for old API</p>
478     */
479    public static final Key<float[]> SENSOR_INFO_PHYSICAL_SIZE =
480            new Key<float[]>("android.sensor.info.physicalSize", float[].class);
481
482    /**
483     * <p>Gain factor from electrons to raw units when
484     * ISO=100</p>
485     */
486    public static final Key<Rational> SENSOR_BASE_GAIN_FACTOR =
487            new Key<Rational>("android.sensor.baseGainFactor", Rational.class);
488
489    /**
490     * <p>Maximum sensitivity that is implemented
491     * purely through analog gain</p>
492     * <p>For {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity} values less than or
493     * equal to this, all applied gain must be analog. For
494     * values above this, it can be a mix of analog and
495     * digital</p>
496     * <p><b>Optional</b> - This value may be null on some devices.</p>
497     * <p><b>Full capability</b> -
498     * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the
499     * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p>
500     *
501     * @see CaptureRequest#SENSOR_SENSITIVITY
502     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
503     */
504    public static final Key<Integer> SENSOR_MAX_ANALOG_SENSITIVITY =
505            new Key<Integer>("android.sensor.maxAnalogSensitivity", int.class);
506
507    /**
508     * <p>Clockwise angle through which the output
509     * image needs to be rotated to be upright on the device
510     * screen in its native orientation. Also defines the
511     * direction of rolling shutter readout, which is from top
512     * to bottom in the sensor's coordinate system</p>
513     */
514    public static final Key<Integer> SENSOR_ORIENTATION =
515            new Key<Integer>("android.sensor.orientation", int.class);
516
517    /**
518     * <p>Which face detection modes are available,
519     * if any</p>
520     * <p>OFF means face detection is disabled, it must
521     * be included in the list.</p>
522     * <p>SIMPLE means the device supports the
523     * android.statistics.faceRectangles and
524     * android.statistics.faceScores outputs.</p>
525     * <p>FULL means the device additionally supports the
526     * android.statistics.faceIds and
527     * android.statistics.faceLandmarks outputs.</p>
528     */
529    public static final Key<byte[]> STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES =
530            new Key<byte[]>("android.statistics.info.availableFaceDetectModes", byte[].class);
531
532    /**
533     * <p>Maximum number of simultaneously detectable
534     * faces</p>
535     */
536    public static final Key<Integer> STATISTICS_INFO_MAX_FACE_COUNT =
537            new Key<Integer>("android.statistics.info.maxFaceCount", int.class);
538
539    /**
540     * <p>Maximum number of supported points in the
541     * tonemap curve</p>
542     */
543    public static final Key<Integer> TONEMAP_MAX_CURVE_POINTS =
544            new Key<Integer>("android.tonemap.maxCurvePoints", int.class);
545
546    /**
547     * <p>A list of camera LEDs that are available on this system.</p>
548     * @see #LED_AVAILABLE_LEDS_TRANSMIT
549     * @hide
550     */
551    public static final Key<int[]> LED_AVAILABLE_LEDS =
552            new Key<int[]>("android.led.availableLeds", int[].class);
553
554    /**
555     * <p>The camera 3 HAL device can implement one of two possible
556     * operational modes; limited and full. Full support is
557     * expected from new higher-end devices. Limited mode has
558     * hardware requirements roughly in line with those for a
559     * camera HAL device v1 implementation, and is expected from
560     * older or inexpensive devices. Full is a strict superset of
561     * limited, and they share the same essential operational flow.</p>
562     * <p>For full details refer to "S3. Operational Modes" in camera3.h</p>
563     * @see #INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED
564     * @see #INFO_SUPPORTED_HARDWARE_LEVEL_FULL
565     */
566    public static final Key<Integer> INFO_SUPPORTED_HARDWARE_LEVEL =
567            new Key<Integer>("android.info.supportedHardwareLevel", int.class);
568
569    /*~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
570     * End generated code
571     *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~O@*/
572}
573