CaptureResult.java revision 9c9167efe229f2d7bad0422c371923d5d1776f52
1/* 2 * Copyright (C) 2012 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.annotation.NonNull; 20import android.annotation.Nullable; 21import android.hardware.camera2.impl.CameraMetadataNative; 22import android.hardware.camera2.impl.CaptureResultExtras; 23import android.hardware.camera2.impl.PublicKey; 24import android.hardware.camera2.impl.SyntheticKey; 25import android.hardware.camera2.utils.TypeReference; 26import android.util.Log; 27import android.util.Rational; 28 29import java.util.List; 30 31/** 32 * <p>The subset of the results of a single image capture from the image sensor.</p> 33 * 34 * <p>Contains a subset of the final configuration for the capture hardware (sensor, lens, 35 * flash), the processing pipeline, the control algorithms, and the output 36 * buffers.</p> 37 * 38 * <p>CaptureResults are produced by a {@link CameraDevice} after processing a 39 * {@link CaptureRequest}. All properties listed for capture requests can also 40 * be queried on the capture result, to determine the final values used for 41 * capture. The result also includes additional metadata about the state of the 42 * camera device during the capture.</p> 43 * 44 * <p>Not all properties returned by {@link CameraCharacteristics#getAvailableCaptureResultKeys()} 45 * are necessarily available. Some results are {@link CaptureResult partial} and will 46 * not have every key set. Only {@link TotalCaptureResult total} results are guaranteed to have 47 * every key available that was enabled by the request.</p> 48 * 49 * <p>{@link CaptureResult} objects are immutable.</p> 50 * 51 */ 52public class CaptureResult extends CameraMetadata<CaptureResult.Key<?>> { 53 54 private static final String TAG = "CaptureResult"; 55 private static final boolean VERBOSE = false; 56 57 /** 58 * A {@code Key} is used to do capture result field lookups with 59 * {@link CaptureResult#get}. 60 * 61 * <p>For example, to get the timestamp corresponding to the exposure of the first row: 62 * <code><pre> 63 * long timestamp = captureResult.get(CaptureResult.SENSOR_TIMESTAMP); 64 * </pre></code> 65 * </p> 66 * 67 * <p>To enumerate over all possible keys for {@link CaptureResult}, see 68 * {@link CameraCharacteristics#getAvailableCaptureResultKeys}.</p> 69 * 70 * @see CaptureResult#get 71 * @see CameraCharacteristics#getAvailableCaptureResultKeys 72 */ 73 public final static class Key<T> { 74 private final CameraMetadataNative.Key<T> mKey; 75 76 /** 77 * Visible for testing and vendor extensions only. 78 * 79 * @hide 80 */ 81 public Key(String name, Class<T> type) { 82 mKey = new CameraMetadataNative.Key<T>(name, type); 83 } 84 85 /** 86 * Visible for testing and vendor extensions only. 87 * 88 * @hide 89 */ 90 public Key(String name, TypeReference<T> typeReference) { 91 mKey = new CameraMetadataNative.Key<T>(name, typeReference); 92 } 93 94 /** 95 * Return a camelCase, period separated name formatted like: 96 * {@code "root.section[.subsections].name"}. 97 * 98 * <p>Built-in keys exposed by the Android SDK are always prefixed with {@code "android."}; 99 * keys that are device/platform-specific are prefixed with {@code "com."}.</p> 100 * 101 * <p>For example, {@code CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP} would 102 * have a name of {@code "android.scaler.streamConfigurationMap"}; whereas a device 103 * specific key might look like {@code "com.google.nexus.data.private"}.</p> 104 * 105 * @return String representation of the key name 106 */ 107 @NonNull 108 public String getName() { 109 return mKey.getName(); 110 } 111 112 /** 113 * {@inheritDoc} 114 */ 115 @Override 116 public final int hashCode() { 117 return mKey.hashCode(); 118 } 119 120 /** 121 * {@inheritDoc} 122 */ 123 @SuppressWarnings("unchecked") 124 @Override 125 public final boolean equals(Object o) { 126 return o instanceof Key && ((Key<T>)o).mKey.equals(mKey); 127 } 128 129 /** 130 * Return this {@link Key} as a string representation. 131 * 132 * <p>{@code "CaptureResult.Key(%s)"}, where {@code %s} represents 133 * the name of this key as returned by {@link #getName}.</p> 134 * 135 * @return string representation of {@link Key} 136 */ 137 @NonNull 138 @Override 139 public String toString() { 140 return String.format("CaptureResult.Key(%s)", mKey.getName()); 141 } 142 143 /** 144 * Visible for CameraMetadataNative implementation only; do not use. 145 * 146 * TODO: Make this private or remove it altogether. 147 * 148 * @hide 149 */ 150 public CameraMetadataNative.Key<T> getNativeKey() { 151 return mKey; 152 } 153 154 @SuppressWarnings({ "unchecked" }) 155 /*package*/ Key(CameraMetadataNative.Key<?> nativeKey) { 156 mKey = (CameraMetadataNative.Key<T>) nativeKey; 157 } 158 } 159 160 private final CameraMetadataNative mResults; 161 private final CaptureRequest mRequest; 162 private final int mSequenceId; 163 private final long mFrameNumber; 164 165 /** 166 * Takes ownership of the passed-in properties object 167 * 168 * <p>For internal use only</p> 169 * @hide 170 */ 171 public CaptureResult(CameraMetadataNative results, CaptureRequest parent, 172 CaptureResultExtras extras) { 173 if (results == null) { 174 throw new IllegalArgumentException("results was null"); 175 } 176 177 if (parent == null) { 178 throw new IllegalArgumentException("parent was null"); 179 } 180 181 if (extras == null) { 182 throw new IllegalArgumentException("extras was null"); 183 } 184 185 mResults = CameraMetadataNative.move(results); 186 if (mResults.isEmpty()) { 187 throw new AssertionError("Results must not be empty"); 188 } 189 mRequest = parent; 190 mSequenceId = extras.getRequestId(); 191 mFrameNumber = extras.getFrameNumber(); 192 } 193 194 /** 195 * Returns a copy of the underlying {@link CameraMetadataNative}. 196 * @hide 197 */ 198 public CameraMetadataNative getNativeCopy() { 199 return new CameraMetadataNative(mResults); 200 } 201 202 /** 203 * Creates a request-less result. 204 * 205 * <p><strong>For testing only.</strong></p> 206 * @hide 207 */ 208 public CaptureResult(CameraMetadataNative results, int sequenceId) { 209 if (results == null) { 210 throw new IllegalArgumentException("results was null"); 211 } 212 213 mResults = CameraMetadataNative.move(results); 214 if (mResults.isEmpty()) { 215 throw new AssertionError("Results must not be empty"); 216 } 217 218 mRequest = null; 219 mSequenceId = sequenceId; 220 mFrameNumber = -1; 221 } 222 223 /** 224 * Get a capture result field value. 225 * 226 * <p>The field definitions can be found in {@link CaptureResult}.</p> 227 * 228 * <p>Querying the value for the same key more than once will return a value 229 * which is equal to the previous queried value.</p> 230 * 231 * @throws IllegalArgumentException if the key was not valid 232 * 233 * @param key The result field to read. 234 * @return The value of that key, or {@code null} if the field is not set. 235 */ 236 @Nullable 237 public <T> T get(Key<T> key) { 238 T value = mResults.get(key); 239 if (VERBOSE) Log.v(TAG, "#get for Key = " + key.getName() + ", returned value = " + value); 240 return value; 241 } 242 243 /** 244 * {@inheritDoc} 245 * @hide 246 */ 247 @SuppressWarnings("unchecked") 248 @Override 249 protected <T> T getProtected(Key<?> key) { 250 return (T) mResults.get(key); 251 } 252 253 /** 254 * {@inheritDoc} 255 * @hide 256 */ 257 @SuppressWarnings("unchecked") 258 @Override 259 protected Class<Key<?>> getKeyClass() { 260 Object thisClass = Key.class; 261 return (Class<Key<?>>)thisClass; 262 } 263 264 /** 265 * Dumps the native metadata contents to logcat. 266 * 267 * <p>Visibility for testing/debugging only. The results will not 268 * include any synthesized keys, as they are invisible to the native layer.</p> 269 * 270 * @hide 271 */ 272 public void dumpToLog() { 273 mResults.dumpToLog(); 274 } 275 276 /** 277 * {@inheritDoc} 278 */ 279 @Override 280 @NonNull 281 public List<Key<?>> getKeys() { 282 // Force the javadoc for this function to show up on the CaptureResult page 283 return super.getKeys(); 284 } 285 286 /** 287 * Get the request associated with this result. 288 * 289 * <p>Whenever a request has been fully or partially captured, with 290 * {@link CameraCaptureSession.CaptureCallback#onCaptureCompleted} or 291 * {@link CameraCaptureSession.CaptureCallback#onCaptureProgressed}, the {@code result}'s 292 * {@code getRequest()} will return that {@code request}. 293 * </p> 294 * 295 * <p>For example, 296 * <code><pre>cameraDevice.capture(someRequest, new CaptureCallback() { 297 * {@literal @}Override 298 * void onCaptureCompleted(CaptureRequest myRequest, CaptureResult myResult) { 299 * assert(myResult.getRequest.equals(myRequest) == true); 300 * } 301 * }, null); 302 * </code></pre> 303 * </p> 304 * 305 * @return The request associated with this result. Never {@code null}. 306 */ 307 @NonNull 308 public CaptureRequest getRequest() { 309 return mRequest; 310 } 311 312 /** 313 * Get the frame number associated with this result. 314 * 315 * <p>Whenever a request has been processed, regardless of failure or success, 316 * it gets a unique frame number assigned to its future result/failure.</p> 317 * 318 * <p>For the same type of request (capturing from the camera device or reprocessing), this 319 * value monotonically increments, starting with 0, for every new result or failure and the 320 * scope is the lifetime of the {@link CameraDevice}. Between different types of requests, 321 * the frame number may not monotonically increment. For example, the frame number of a newer 322 * reprocess result may be smaller than the frame number of an older result of capturing new 323 * images from the camera device, but the frame number of a newer reprocess result will never be 324 * smaller than the frame number of an older reprocess result.</p> 325 * 326 * @return The frame number 327 * 328 * @see CameraDevice#createCaptureRequest 329 * @see CameraDevice#createReprocessCaptureRequest 330 */ 331 public long getFrameNumber() { 332 return mFrameNumber; 333 } 334 335 /** 336 * The sequence ID for this failure that was returned by the 337 * {@link CameraCaptureSession#capture} family of functions. 338 * 339 * <p>The sequence ID is a unique monotonically increasing value starting from 0, 340 * incremented every time a new group of requests is submitted to the CameraDevice.</p> 341 * 342 * @return int The ID for the sequence of requests that this capture result is a part of 343 * 344 * @see CameraDevice.CaptureCallback#onCaptureSequenceCompleted 345 * @see CameraDevice.CaptureCallback#onCaptureSequenceAborted 346 */ 347 public int getSequenceId() { 348 return mSequenceId; 349 } 350 351 /*@O~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~ 352 * The key entries below this point are generated from metadata 353 * definitions in /system/media/camera/docs. Do not modify by hand or 354 * modify the comment blocks at the start or end. 355 *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~*/ 356 357 /** 358 * <p>The mode control selects how the image data is converted from the 359 * sensor's native color into linear sRGB color.</p> 360 * <p>When auto-white balance (AWB) is enabled with {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode}, this 361 * control is overridden by the AWB routine. When AWB is disabled, the 362 * application controls how the color mapping is performed.</p> 363 * <p>We define the expected processing pipeline below. For consistency 364 * across devices, this is always the case with TRANSFORM_MATRIX.</p> 365 * <p>When either FULL or HIGH_QUALITY is used, the camera device may 366 * do additional processing but {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} and 367 * {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform} will still be provided by the 368 * camera device (in the results) and be roughly correct.</p> 369 * <p>Switching to TRANSFORM_MATRIX and using the data provided from 370 * FAST or HIGH_QUALITY will yield a picture with the same white point 371 * as what was produced by the camera device in the earlier frame.</p> 372 * <p>The expected processing pipeline is as follows:</p> 373 * <p><img alt="White balance processing pipeline" src="../../../../images/camera2/metadata/android.colorCorrection.mode/processing_pipeline.png" /></p> 374 * <p>The white balance is encoded by two values, a 4-channel white-balance 375 * gain vector (applied in the Bayer domain), and a 3x3 color transform 376 * matrix (applied after demosaic).</p> 377 * <p>The 4-channel white-balance gains are defined as:</p> 378 * <pre><code>{@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} = [ R G_even G_odd B ] 379 * </code></pre> 380 * <p>where <code>G_even</code> is the gain for green pixels on even rows of the 381 * output, and <code>G_odd</code> is the gain for green pixels on the odd rows. 382 * These may be identical for a given camera device implementation; if 383 * the camera device does not support a separate gain for even/odd green 384 * channels, it will use the <code>G_even</code> value, and write <code>G_odd</code> equal to 385 * <code>G_even</code> in the output result metadata.</p> 386 * <p>The matrices for color transforms are defined as a 9-entry vector:</p> 387 * <pre><code>{@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform} = [ I0 I1 I2 I3 I4 I5 I6 I7 I8 ] 388 * </code></pre> 389 * <p>which define a transform from input sensor colors, <code>P_in = [ r g b ]</code>, 390 * to output linear sRGB, <code>P_out = [ r' g' b' ]</code>,</p> 391 * <p>with colors as follows:</p> 392 * <pre><code>r' = I0r + I1g + I2b 393 * g' = I3r + I4g + I5b 394 * b' = I6r + I7g + I8b 395 * </code></pre> 396 * <p>Both the input and output value ranges must match. Overflow/underflow 397 * values are clipped to fit within the range.</p> 398 * <p><b>Possible values:</b> 399 * <ul> 400 * <li>{@link #COLOR_CORRECTION_MODE_TRANSFORM_MATRIX TRANSFORM_MATRIX}</li> 401 * <li>{@link #COLOR_CORRECTION_MODE_FAST FAST}</li> 402 * <li>{@link #COLOR_CORRECTION_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 403 * </ul></p> 404 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 405 * <p><b>Full capability</b> - 406 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 407 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 408 * 409 * @see CaptureRequest#COLOR_CORRECTION_GAINS 410 * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM 411 * @see CaptureRequest#CONTROL_AWB_MODE 412 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 413 * @see #COLOR_CORRECTION_MODE_TRANSFORM_MATRIX 414 * @see #COLOR_CORRECTION_MODE_FAST 415 * @see #COLOR_CORRECTION_MODE_HIGH_QUALITY 416 */ 417 @PublicKey 418 public static final Key<Integer> COLOR_CORRECTION_MODE = 419 new Key<Integer>("android.colorCorrection.mode", int.class); 420 421 /** 422 * <p>A color transform matrix to use to transform 423 * from sensor RGB color space to output linear sRGB color space.</p> 424 * <p>This matrix is either set by the camera device when the request 425 * {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} is not TRANSFORM_MATRIX, or 426 * directly by the application in the request when the 427 * {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} is TRANSFORM_MATRIX.</p> 428 * <p>In the latter case, the camera device may round the matrix to account 429 * for precision issues; the final rounded matrix should be reported back 430 * in this matrix result metadata. The transform should keep the magnitude 431 * of the output color values within <code>[0, 1.0]</code> (assuming input color 432 * values is within the normalized range <code>[0, 1.0]</code>), or clipping may occur.</p> 433 * <p>The valid range of each matrix element varies on different devices, but 434 * values within [-1.5, 3.0] are guaranteed not to be clipped.</p> 435 * <p><b>Units</b>: Unitless scale factors</p> 436 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 437 * <p><b>Full capability</b> - 438 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 439 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 440 * 441 * @see CaptureRequest#COLOR_CORRECTION_MODE 442 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 443 */ 444 @PublicKey 445 public static final Key<android.hardware.camera2.params.ColorSpaceTransform> COLOR_CORRECTION_TRANSFORM = 446 new Key<android.hardware.camera2.params.ColorSpaceTransform>("android.colorCorrection.transform", android.hardware.camera2.params.ColorSpaceTransform.class); 447 448 /** 449 * <p>Gains applying to Bayer raw color channels for 450 * white-balance.</p> 451 * <p>These per-channel gains are either set by the camera device 452 * when the request {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} is not 453 * TRANSFORM_MATRIX, or directly by the application in the 454 * request when the {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} is 455 * TRANSFORM_MATRIX.</p> 456 * <p>The gains in the result metadata are the gains actually 457 * applied by the camera device to the current frame.</p> 458 * <p>The valid range of gains varies on different devices, but gains 459 * between [1.0, 3.0] are guaranteed not to be clipped. Even if a given 460 * device allows gains below 1.0, this is usually not recommended because 461 * this can create color artifacts.</p> 462 * <p><b>Units</b>: Unitless gain factors</p> 463 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 464 * <p><b>Full capability</b> - 465 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 466 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 467 * 468 * @see CaptureRequest#COLOR_CORRECTION_MODE 469 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 470 */ 471 @PublicKey 472 public static final Key<android.hardware.camera2.params.RggbChannelVector> COLOR_CORRECTION_GAINS = 473 new Key<android.hardware.camera2.params.RggbChannelVector>("android.colorCorrection.gains", android.hardware.camera2.params.RggbChannelVector.class); 474 475 /** 476 * <p>Mode of operation for the chromatic aberration correction algorithm.</p> 477 * <p>Chromatic (color) aberration is caused by the fact that different wavelengths of light 478 * can not focus on the same point after exiting from the lens. This metadata defines 479 * the high level control of chromatic aberration correction algorithm, which aims to 480 * minimize the chromatic artifacts that may occur along the object boundaries in an 481 * image.</p> 482 * <p>FAST/HIGH_QUALITY both mean that camera device determined aberration 483 * correction will be applied. HIGH_QUALITY mode indicates that the camera device will 484 * use the highest-quality aberration correction algorithms, even if it slows down 485 * capture rate. FAST means the camera device will not slow down capture rate when 486 * applying aberration correction.</p> 487 * <p>LEGACY devices will always be in FAST mode.</p> 488 * <p><b>Possible values:</b> 489 * <ul> 490 * <li>{@link #COLOR_CORRECTION_ABERRATION_MODE_OFF OFF}</li> 491 * <li>{@link #COLOR_CORRECTION_ABERRATION_MODE_FAST FAST}</li> 492 * <li>{@link #COLOR_CORRECTION_ABERRATION_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 493 * </ul></p> 494 * <p><b>Available values for this device:</b><br> 495 * {@link CameraCharacteristics#COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES android.colorCorrection.availableAberrationModes}</p> 496 * <p>This key is available on all devices.</p> 497 * 498 * @see CameraCharacteristics#COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES 499 * @see #COLOR_CORRECTION_ABERRATION_MODE_OFF 500 * @see #COLOR_CORRECTION_ABERRATION_MODE_FAST 501 * @see #COLOR_CORRECTION_ABERRATION_MODE_HIGH_QUALITY 502 */ 503 @PublicKey 504 public static final Key<Integer> COLOR_CORRECTION_ABERRATION_MODE = 505 new Key<Integer>("android.colorCorrection.aberrationMode", int.class); 506 507 /** 508 * <p>The desired setting for the camera device's auto-exposure 509 * algorithm's antibanding compensation.</p> 510 * <p>Some kinds of lighting fixtures, such as some fluorescent 511 * lights, flicker at the rate of the power supply frequency 512 * (60Hz or 50Hz, depending on country). While this is 513 * typically not noticeable to a person, it can be visible to 514 * a camera device. If a camera sets its exposure time to the 515 * wrong value, the flicker may become visible in the 516 * viewfinder as flicker or in a final captured image, as a 517 * set of variable-brightness bands across the image.</p> 518 * <p>Therefore, the auto-exposure routines of camera devices 519 * include antibanding routines that ensure that the chosen 520 * exposure value will not cause such banding. The choice of 521 * exposure time depends on the rate of flicker, which the 522 * camera device can detect automatically, or the expected 523 * rate can be selected by the application using this 524 * control.</p> 525 * <p>A given camera device may not support all of the possible 526 * options for the antibanding mode. The 527 * {@link CameraCharacteristics#CONTROL_AE_AVAILABLE_ANTIBANDING_MODES android.control.aeAvailableAntibandingModes} key contains 528 * the available modes for a given camera device.</p> 529 * <p>AUTO mode is the default if it is available on given 530 * camera device. When AUTO mode is not available, the 531 * default will be either 50HZ or 60HZ, and both 50HZ 532 * and 60HZ will be available.</p> 533 * <p>If manual exposure control is enabled (by setting 534 * {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} or {@link CaptureRequest#CONTROL_MODE android.control.mode} to OFF), 535 * then this setting has no effect, and the application must 536 * ensure it selects exposure times that do not cause banding 537 * issues. The {@link CaptureResult#STATISTICS_SCENE_FLICKER android.statistics.sceneFlicker} key can assist 538 * the application in this.</p> 539 * <p><b>Possible values:</b> 540 * <ul> 541 * <li>{@link #CONTROL_AE_ANTIBANDING_MODE_OFF OFF}</li> 542 * <li>{@link #CONTROL_AE_ANTIBANDING_MODE_50HZ 50HZ}</li> 543 * <li>{@link #CONTROL_AE_ANTIBANDING_MODE_60HZ 60HZ}</li> 544 * <li>{@link #CONTROL_AE_ANTIBANDING_MODE_AUTO AUTO}</li> 545 * </ul></p> 546 * <p><b>Available values for this device:</b><br></p> 547 * <p>{@link CameraCharacteristics#CONTROL_AE_AVAILABLE_ANTIBANDING_MODES android.control.aeAvailableAntibandingModes}</p> 548 * <p>This key is available on all devices.</p> 549 * 550 * @see CameraCharacteristics#CONTROL_AE_AVAILABLE_ANTIBANDING_MODES 551 * @see CaptureRequest#CONTROL_AE_MODE 552 * @see CaptureRequest#CONTROL_MODE 553 * @see CaptureResult#STATISTICS_SCENE_FLICKER 554 * @see #CONTROL_AE_ANTIBANDING_MODE_OFF 555 * @see #CONTROL_AE_ANTIBANDING_MODE_50HZ 556 * @see #CONTROL_AE_ANTIBANDING_MODE_60HZ 557 * @see #CONTROL_AE_ANTIBANDING_MODE_AUTO 558 */ 559 @PublicKey 560 public static final Key<Integer> CONTROL_AE_ANTIBANDING_MODE = 561 new Key<Integer>("android.control.aeAntibandingMode", int.class); 562 563 /** 564 * <p>Adjustment to auto-exposure (AE) target image 565 * brightness.</p> 566 * <p>The adjustment is measured as a count of steps, with the 567 * step size defined by {@link CameraCharacteristics#CONTROL_AE_COMPENSATION_STEP android.control.aeCompensationStep} and the 568 * allowed range by {@link CameraCharacteristics#CONTROL_AE_COMPENSATION_RANGE android.control.aeCompensationRange}.</p> 569 * <p>For example, if the exposure value (EV) step is 0.333, '6' 570 * will mean an exposure compensation of +2 EV; -3 will mean an 571 * exposure compensation of -1 EV. One EV represents a doubling 572 * of image brightness. Note that this control will only be 573 * effective if {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} <code>!=</code> OFF. This control 574 * will take effect even when {@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} <code>== true</code>.</p> 575 * <p>In the event of exposure compensation value being changed, camera device 576 * may take several frames to reach the newly requested exposure target. 577 * During that time, {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} field will be in the SEARCHING 578 * state. Once the new exposure target is reached, {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} will 579 * change from SEARCHING to either CONVERGED, LOCKED (if AE lock is enabled), or 580 * FLASH_REQUIRED (if the scene is too dark for still capture).</p> 581 * <p><b>Units</b>: Compensation steps</p> 582 * <p><b>Range of valid values:</b><br> 583 * {@link CameraCharacteristics#CONTROL_AE_COMPENSATION_RANGE android.control.aeCompensationRange}</p> 584 * <p>This key is available on all devices.</p> 585 * 586 * @see CameraCharacteristics#CONTROL_AE_COMPENSATION_RANGE 587 * @see CameraCharacteristics#CONTROL_AE_COMPENSATION_STEP 588 * @see CaptureRequest#CONTROL_AE_LOCK 589 * @see CaptureRequest#CONTROL_AE_MODE 590 * @see CaptureResult#CONTROL_AE_STATE 591 */ 592 @PublicKey 593 public static final Key<Integer> CONTROL_AE_EXPOSURE_COMPENSATION = 594 new Key<Integer>("android.control.aeExposureCompensation", int.class); 595 596 /** 597 * <p>Whether auto-exposure (AE) is currently locked to its latest 598 * calculated values.</p> 599 * <p>When set to <code>true</code> (ON), the AE algorithm is locked to its latest parameters, 600 * and will not change exposure settings until the lock is set to <code>false</code> (OFF).</p> 601 * <p>Note that even when AE is locked, the flash may be fired if 602 * the {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is ON_AUTO_FLASH / 603 * ON_ALWAYS_FLASH / ON_AUTO_FLASH_REDEYE.</p> 604 * <p>When {@link CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION android.control.aeExposureCompensation} is changed, even if the AE lock 605 * is ON, the camera device will still adjust its exposure value.</p> 606 * <p>If AE precapture is triggered (see {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}) 607 * when AE is already locked, the camera device will not change the exposure time 608 * ({@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}) and sensitivity ({@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}) 609 * parameters. The flash may be fired if the {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} 610 * is ON_AUTO_FLASH/ON_AUTO_FLASH_REDEYE and the scene is too dark. If the 611 * {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is ON_ALWAYS_FLASH, the scene may become overexposed. 612 * Similarly, AE precapture trigger CANCEL has no effect when AE is already locked.</p> 613 * <p>When an AE precapture sequence is triggered, AE unlock will not be able to unlock 614 * the AE if AE is locked by the camera device internally during precapture metering 615 * sequence In other words, submitting requests with AE unlock has no effect for an 616 * ongoing precapture metering sequence. Otherwise, the precapture metering sequence 617 * will never succeed in a sequence of preview requests where AE lock is always set 618 * to <code>false</code>.</p> 619 * <p>Since the camera device has a pipeline of in-flight requests, the settings that 620 * get locked do not necessarily correspond to the settings that were present in the 621 * latest capture result received from the camera device, since additional captures 622 * and AE updates may have occurred even before the result was sent out. If an 623 * application is switching between automatic and manual control and wishes to eliminate 624 * any flicker during the switch, the following procedure is recommended:</p> 625 * <ol> 626 * <li>Starting in auto-AE mode:</li> 627 * <li>Lock AE</li> 628 * <li>Wait for the first result to be output that has the AE locked</li> 629 * <li>Copy exposure settings from that result into a request, set the request to manual AE</li> 630 * <li>Submit the capture request, proceed to run manual AE as desired.</li> 631 * </ol> 632 * <p>See {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} for AE lock related state transition details.</p> 633 * <p>This key is available on all devices.</p> 634 * 635 * @see CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION 636 * @see CaptureRequest#CONTROL_AE_MODE 637 * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER 638 * @see CaptureResult#CONTROL_AE_STATE 639 * @see CaptureRequest#SENSOR_EXPOSURE_TIME 640 * @see CaptureRequest#SENSOR_SENSITIVITY 641 */ 642 @PublicKey 643 public static final Key<Boolean> CONTROL_AE_LOCK = 644 new Key<Boolean>("android.control.aeLock", boolean.class); 645 646 /** 647 * <p>The desired mode for the camera device's 648 * auto-exposure routine.</p> 649 * <p>This control is only effective if {@link CaptureRequest#CONTROL_MODE android.control.mode} is 650 * AUTO.</p> 651 * <p>When set to any of the ON modes, the camera device's 652 * auto-exposure routine is enabled, overriding the 653 * application's selected exposure time, sensor sensitivity, 654 * and frame duration ({@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}, 655 * {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}, and 656 * {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration}). If one of the FLASH modes 657 * is selected, the camera device's flash unit controls are 658 * also overridden.</p> 659 * <p>The FLASH modes are only available if the camera device 660 * has a flash unit ({@link CameraCharacteristics#FLASH_INFO_AVAILABLE android.flash.info.available} is <code>true</code>).</p> 661 * <p>If flash TORCH mode is desired, this field must be set to 662 * ON or OFF, and {@link CaptureRequest#FLASH_MODE android.flash.mode} set to TORCH.</p> 663 * <p>When set to any of the ON modes, the values chosen by the 664 * camera device auto-exposure routine for the overridden 665 * fields for a given capture will be available in its 666 * CaptureResult.</p> 667 * <p><b>Possible values:</b> 668 * <ul> 669 * <li>{@link #CONTROL_AE_MODE_OFF OFF}</li> 670 * <li>{@link #CONTROL_AE_MODE_ON ON}</li> 671 * <li>{@link #CONTROL_AE_MODE_ON_AUTO_FLASH ON_AUTO_FLASH}</li> 672 * <li>{@link #CONTROL_AE_MODE_ON_ALWAYS_FLASH ON_ALWAYS_FLASH}</li> 673 * <li>{@link #CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE ON_AUTO_FLASH_REDEYE}</li> 674 * </ul></p> 675 * <p><b>Available values for this device:</b><br> 676 * {@link CameraCharacteristics#CONTROL_AE_AVAILABLE_MODES android.control.aeAvailableModes}</p> 677 * <p>This key is available on all devices.</p> 678 * 679 * @see CameraCharacteristics#CONTROL_AE_AVAILABLE_MODES 680 * @see CaptureRequest#CONTROL_MODE 681 * @see CameraCharacteristics#FLASH_INFO_AVAILABLE 682 * @see CaptureRequest#FLASH_MODE 683 * @see CaptureRequest#SENSOR_EXPOSURE_TIME 684 * @see CaptureRequest#SENSOR_FRAME_DURATION 685 * @see CaptureRequest#SENSOR_SENSITIVITY 686 * @see #CONTROL_AE_MODE_OFF 687 * @see #CONTROL_AE_MODE_ON 688 * @see #CONTROL_AE_MODE_ON_AUTO_FLASH 689 * @see #CONTROL_AE_MODE_ON_ALWAYS_FLASH 690 * @see #CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE 691 */ 692 @PublicKey 693 public static final Key<Integer> CONTROL_AE_MODE = 694 new Key<Integer>("android.control.aeMode", int.class); 695 696 /** 697 * <p>List of metering areas to use for auto-exposure adjustment.</p> 698 * <p>Not available if {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AE android.control.maxRegionsAe} is 0. 699 * Otherwise will always be present.</p> 700 * <p>The maximum number of regions supported by the device is determined by the value 701 * of {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AE android.control.maxRegionsAe}.</p> 702 * <p>The coordinate system is based on the active pixel array, 703 * with (0,0) being the top-left pixel in the active pixel array, and 704 * ({@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.width - 1, 705 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.height - 1) being the 706 * bottom-right pixel in the active pixel array.</p> 707 * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight 708 * for every pixel in the area. This means that a large metering area 709 * with the same weight as a smaller area will have more effect in 710 * the metering result. Metering areas can partially overlap and the 711 * camera device will add the weights in the overlap region.</p> 712 * <p>The weights are relative to weights of other exposure metering regions, so if only one 713 * region is used, all non-zero weights will have the same effect. A region with 0 714 * weight is ignored.</p> 715 * <p>If all regions have 0 weight, then no specific metering area needs to be used by the 716 * camera device.</p> 717 * <p>If the metering region is outside the used {@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion} returned in 718 * capture result metadata, the camera device will ignore the sections outside the crop 719 * region and output only the intersection rectangle as the metering region in the result 720 * metadata. If the region is entirely outside the crop region, it will be ignored and 721 * not reported in the result metadata.</p> 722 * <p><b>Units</b>: Pixel coordinates within {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 723 * <p><b>Range of valid values:</b><br> 724 * Coordinates must be between <code>[(0,0), (width, height))</code> of 725 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 726 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 727 * 728 * @see CameraCharacteristics#CONTROL_MAX_REGIONS_AE 729 * @see CaptureRequest#SCALER_CROP_REGION 730 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 731 */ 732 @PublicKey 733 public static final Key<android.hardware.camera2.params.MeteringRectangle[]> CONTROL_AE_REGIONS = 734 new Key<android.hardware.camera2.params.MeteringRectangle[]>("android.control.aeRegions", android.hardware.camera2.params.MeteringRectangle[].class); 735 736 /** 737 * <p>Range over which the auto-exposure routine can 738 * adjust the capture frame rate to maintain good 739 * exposure.</p> 740 * <p>Only constrains auto-exposure (AE) algorithm, not 741 * manual control of {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime} and 742 * {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration}.</p> 743 * <p><b>Units</b>: Frames per second (FPS)</p> 744 * <p><b>Range of valid values:</b><br> 745 * Any of the entries in {@link CameraCharacteristics#CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES android.control.aeAvailableTargetFpsRanges}</p> 746 * <p>This key is available on all devices.</p> 747 * 748 * @see CameraCharacteristics#CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES 749 * @see CaptureRequest#SENSOR_EXPOSURE_TIME 750 * @see CaptureRequest#SENSOR_FRAME_DURATION 751 */ 752 @PublicKey 753 public static final Key<android.util.Range<Integer>> CONTROL_AE_TARGET_FPS_RANGE = 754 new Key<android.util.Range<Integer>>("android.control.aeTargetFpsRange", new TypeReference<android.util.Range<Integer>>() {{ }}); 755 756 /** 757 * <p>Whether the camera device will trigger a precapture 758 * metering sequence when it processes this request.</p> 759 * <p>This entry is normally set to IDLE, or is not 760 * included at all in the request settings. When included and 761 * set to START, the camera device will trigger the auto-exposure (AE) 762 * precapture metering sequence.</p> 763 * <p>When set to CANCEL, the camera device will cancel any active 764 * precapture metering trigger, and return to its initial AE state. 765 * If a precapture metering sequence is already completed, and the camera 766 * device has implicitly locked the AE for subsequent still capture, the 767 * CANCEL trigger will unlock the AE and return to its initial AE state.</p> 768 * <p>The precapture sequence should be triggered before starting a 769 * high-quality still capture for final metering decisions to 770 * be made, and for firing pre-capture flash pulses to estimate 771 * scene brightness and required final capture flash power, when 772 * the flash is enabled.</p> 773 * <p>Normally, this entry should be set to START for only a 774 * single request, and the application should wait until the 775 * sequence completes before starting a new one.</p> 776 * <p>When a precapture metering sequence is finished, the camera device 777 * may lock the auto-exposure routine internally to be able to accurately expose the 778 * subsequent still capture image (<code>{@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} == STILL_CAPTURE</code>). 779 * For this case, the AE may not resume normal scan if no subsequent still capture is 780 * submitted. To ensure that the AE routine restarts normal scan, the application should 781 * submit a request with <code>{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} == true</code>, followed by a request 782 * with <code>{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} == false</code>, if the application decides not to submit a 783 * still capture request after the precapture sequence completes. Alternatively, for 784 * API level 23 or newer devices, the CANCEL can be used to unlock the camera device 785 * internally locked AE if the application doesn't submit a still capture request after 786 * the AE precapture trigger. Note that, the CANCEL was added in API level 23, and must not 787 * be used in devices that have earlier API levels.</p> 788 * <p>The exact effect of auto-exposure (AE) precapture trigger 789 * depends on the current AE mode and state; see 790 * {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} for AE precapture state transition 791 * details.</p> 792 * <p>On LEGACY-level devices, the precapture trigger is not supported; 793 * capturing a high-resolution JPEG image will automatically trigger a 794 * precapture sequence before the high-resolution capture, including 795 * potentially firing a pre-capture flash.</p> 796 * <p>Using the precapture trigger and the auto-focus trigger {@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger} 797 * simultaneously is allowed. However, since these triggers often require cooperation between 798 * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a 799 * focus sweep), the camera device may delay acting on a later trigger until the previous 800 * trigger has been fully handled. This may lead to longer intervals between the trigger and 801 * changes to {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} indicating the start of the precapture sequence, for 802 * example.</p> 803 * <p>If both the precapture and the auto-focus trigger are activated on the same request, then 804 * the camera device will complete them in the optimal order for that device.</p> 805 * <p><b>Possible values:</b> 806 * <ul> 807 * <li>{@link #CONTROL_AE_PRECAPTURE_TRIGGER_IDLE IDLE}</li> 808 * <li>{@link #CONTROL_AE_PRECAPTURE_TRIGGER_START START}</li> 809 * <li>{@link #CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL CANCEL}</li> 810 * </ul></p> 811 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 812 * <p><b>Limited capability</b> - 813 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 814 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 815 * 816 * @see CaptureRequest#CONTROL_AE_LOCK 817 * @see CaptureResult#CONTROL_AE_STATE 818 * @see CaptureRequest#CONTROL_AF_TRIGGER 819 * @see CaptureRequest#CONTROL_CAPTURE_INTENT 820 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 821 * @see #CONTROL_AE_PRECAPTURE_TRIGGER_IDLE 822 * @see #CONTROL_AE_PRECAPTURE_TRIGGER_START 823 * @see #CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL 824 */ 825 @PublicKey 826 public static final Key<Integer> CONTROL_AE_PRECAPTURE_TRIGGER = 827 new Key<Integer>("android.control.aePrecaptureTrigger", int.class); 828 829 /** 830 * <p>Current state of the auto-exposure (AE) algorithm.</p> 831 * <p>Switching between or enabling AE modes ({@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode}) always 832 * resets the AE state to INACTIVE. Similarly, switching between {@link CaptureRequest#CONTROL_MODE android.control.mode}, 833 * or {@link CaptureRequest#CONTROL_SCENE_MODE android.control.sceneMode} if <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} == USE_SCENE_MODE</code> resets all 834 * the algorithm states to INACTIVE.</p> 835 * <p>The camera device can do several state transitions between two results, if it is 836 * allowed by the state transition table. For example: INACTIVE may never actually be 837 * seen in a result.</p> 838 * <p>The state in the result is the state for this image (in sync with this image): if 839 * AE state becomes CONVERGED, then the image data associated with this result should 840 * be good to use.</p> 841 * <p>Below are state transition tables for different AE modes.</p> 842 * <table> 843 * <thead> 844 * <tr> 845 * <th align="center">State</th> 846 * <th align="center">Transition Cause</th> 847 * <th align="center">New State</th> 848 * <th align="center">Notes</th> 849 * </tr> 850 * </thead> 851 * <tbody> 852 * <tr> 853 * <td align="center">INACTIVE</td> 854 * <td align="center"></td> 855 * <td align="center">INACTIVE</td> 856 * <td align="center">Camera device auto exposure algorithm is disabled</td> 857 * </tr> 858 * </tbody> 859 * </table> 860 * <p>When {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is AE_MODE_ON_*:</p> 861 * <table> 862 * <thead> 863 * <tr> 864 * <th align="center">State</th> 865 * <th align="center">Transition Cause</th> 866 * <th align="center">New State</th> 867 * <th align="center">Notes</th> 868 * </tr> 869 * </thead> 870 * <tbody> 871 * <tr> 872 * <td align="center">INACTIVE</td> 873 * <td align="center">Camera device initiates AE scan</td> 874 * <td align="center">SEARCHING</td> 875 * <td align="center">Values changing</td> 876 * </tr> 877 * <tr> 878 * <td align="center">INACTIVE</td> 879 * <td align="center">{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is ON</td> 880 * <td align="center">LOCKED</td> 881 * <td align="center">Values locked</td> 882 * </tr> 883 * <tr> 884 * <td align="center">SEARCHING</td> 885 * <td align="center">Camera device finishes AE scan</td> 886 * <td align="center">CONVERGED</td> 887 * <td align="center">Good values, not changing</td> 888 * </tr> 889 * <tr> 890 * <td align="center">SEARCHING</td> 891 * <td align="center">Camera device finishes AE scan</td> 892 * <td align="center">FLASH_REQUIRED</td> 893 * <td align="center">Converged but too dark w/o flash</td> 894 * </tr> 895 * <tr> 896 * <td align="center">SEARCHING</td> 897 * <td align="center">{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is ON</td> 898 * <td align="center">LOCKED</td> 899 * <td align="center">Values locked</td> 900 * </tr> 901 * <tr> 902 * <td align="center">CONVERGED</td> 903 * <td align="center">Camera device initiates AE scan</td> 904 * <td align="center">SEARCHING</td> 905 * <td align="center">Values changing</td> 906 * </tr> 907 * <tr> 908 * <td align="center">CONVERGED</td> 909 * <td align="center">{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is ON</td> 910 * <td align="center">LOCKED</td> 911 * <td align="center">Values locked</td> 912 * </tr> 913 * <tr> 914 * <td align="center">FLASH_REQUIRED</td> 915 * <td align="center">Camera device initiates AE scan</td> 916 * <td align="center">SEARCHING</td> 917 * <td align="center">Values changing</td> 918 * </tr> 919 * <tr> 920 * <td align="center">FLASH_REQUIRED</td> 921 * <td align="center">{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is ON</td> 922 * <td align="center">LOCKED</td> 923 * <td align="center">Values locked</td> 924 * </tr> 925 * <tr> 926 * <td align="center">LOCKED</td> 927 * <td align="center">{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is OFF</td> 928 * <td align="center">SEARCHING</td> 929 * <td align="center">Values not good after unlock</td> 930 * </tr> 931 * <tr> 932 * <td align="center">LOCKED</td> 933 * <td align="center">{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is OFF</td> 934 * <td align="center">CONVERGED</td> 935 * <td align="center">Values good after unlock</td> 936 * </tr> 937 * <tr> 938 * <td align="center">LOCKED</td> 939 * <td align="center">{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is OFF</td> 940 * <td align="center">FLASH_REQUIRED</td> 941 * <td align="center">Exposure good, but too dark</td> 942 * </tr> 943 * <tr> 944 * <td align="center">PRECAPTURE</td> 945 * <td align="center">Sequence done. {@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is OFF</td> 946 * <td align="center">CONVERGED</td> 947 * <td align="center">Ready for high-quality capture</td> 948 * </tr> 949 * <tr> 950 * <td align="center">PRECAPTURE</td> 951 * <td align="center">Sequence done. {@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is ON</td> 952 * <td align="center">LOCKED</td> 953 * <td align="center">Ready for high-quality capture</td> 954 * </tr> 955 * <tr> 956 * <td align="center">LOCKED</td> 957 * <td align="center">aeLock is ON and aePrecaptureTrigger is START</td> 958 * <td align="center">LOCKED</td> 959 * <td align="center">Precapture trigger is ignored when AE is already locked</td> 960 * </tr> 961 * <tr> 962 * <td align="center">LOCKED</td> 963 * <td align="center">aeLock is ON and aePrecaptureTrigger is CANCEL</td> 964 * <td align="center">LOCKED</td> 965 * <td align="center">Precapture trigger is ignored when AE is already locked</td> 966 * </tr> 967 * <tr> 968 * <td align="center">Any state (excluding LOCKED)</td> 969 * <td align="center">{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} is START</td> 970 * <td align="center">PRECAPTURE</td> 971 * <td align="center">Start AE precapture metering sequence</td> 972 * </tr> 973 * <tr> 974 * <td align="center">Any state (excluding LOCKED)</td> 975 * <td align="center">{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} is CANCEL</td> 976 * <td align="center">INACTIVE</td> 977 * <td align="center">Currently active precapture metering sequence is canceled</td> 978 * </tr> 979 * </tbody> 980 * </table> 981 * <p>For the above table, the camera device may skip reporting any state changes that happen 982 * without application intervention (i.e. mode switch, trigger, locking). Any state that 983 * can be skipped in that manner is called a transient state.</p> 984 * <p>For example, for above AE modes (AE_MODE_ON_*), in addition to the state transitions 985 * listed in above table, it is also legal for the camera device to skip one or more 986 * transient states between two results. See below table for examples:</p> 987 * <table> 988 * <thead> 989 * <tr> 990 * <th align="center">State</th> 991 * <th align="center">Transition Cause</th> 992 * <th align="center">New State</th> 993 * <th align="center">Notes</th> 994 * </tr> 995 * </thead> 996 * <tbody> 997 * <tr> 998 * <td align="center">INACTIVE</td> 999 * <td align="center">Camera device finished AE scan</td> 1000 * <td align="center">CONVERGED</td> 1001 * <td align="center">Values are already good, transient states are skipped by camera device.</td> 1002 * </tr> 1003 * <tr> 1004 * <td align="center">Any state (excluding LOCKED)</td> 1005 * <td align="center">{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} is START, sequence done</td> 1006 * <td align="center">FLASH_REQUIRED</td> 1007 * <td align="center">Converged but too dark w/o flash after a precapture sequence, transient states are skipped by camera device.</td> 1008 * </tr> 1009 * <tr> 1010 * <td align="center">Any state (excluding LOCKED)</td> 1011 * <td align="center">{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} is START, sequence done</td> 1012 * <td align="center">CONVERGED</td> 1013 * <td align="center">Converged after a precapture sequence, transient states are skipped by camera device.</td> 1014 * </tr> 1015 * <tr> 1016 * <td align="center">Any state (excluding LOCKED)</td> 1017 * <td align="center">{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} is CANCEL, converged</td> 1018 * <td align="center">FLASH_REQUIRED</td> 1019 * <td align="center">Converged but too dark w/o flash after a precapture sequence is canceled, transient states are skipped by camera device.</td> 1020 * </tr> 1021 * <tr> 1022 * <td align="center">Any state (excluding LOCKED)</td> 1023 * <td align="center">{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} is CANCEL, converged</td> 1024 * <td align="center">CONVERGED</td> 1025 * <td align="center">Converged after a precapture sequenceis canceled, transient states are skipped by camera device.</td> 1026 * </tr> 1027 * <tr> 1028 * <td align="center">CONVERGED</td> 1029 * <td align="center">Camera device finished AE scan</td> 1030 * <td align="center">FLASH_REQUIRED</td> 1031 * <td align="center">Converged but too dark w/o flash after a new scan, transient states are skipped by camera device.</td> 1032 * </tr> 1033 * <tr> 1034 * <td align="center">FLASH_REQUIRED</td> 1035 * <td align="center">Camera device finished AE scan</td> 1036 * <td align="center">CONVERGED</td> 1037 * <td align="center">Converged after a new scan, transient states are skipped by camera device.</td> 1038 * </tr> 1039 * </tbody> 1040 * </table> 1041 * <p><b>Possible values:</b> 1042 * <ul> 1043 * <li>{@link #CONTROL_AE_STATE_INACTIVE INACTIVE}</li> 1044 * <li>{@link #CONTROL_AE_STATE_SEARCHING SEARCHING}</li> 1045 * <li>{@link #CONTROL_AE_STATE_CONVERGED CONVERGED}</li> 1046 * <li>{@link #CONTROL_AE_STATE_LOCKED LOCKED}</li> 1047 * <li>{@link #CONTROL_AE_STATE_FLASH_REQUIRED FLASH_REQUIRED}</li> 1048 * <li>{@link #CONTROL_AE_STATE_PRECAPTURE PRECAPTURE}</li> 1049 * </ul></p> 1050 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1051 * <p><b>Limited capability</b> - 1052 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 1053 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 1054 * 1055 * @see CaptureRequest#CONTROL_AE_LOCK 1056 * @see CaptureRequest#CONTROL_AE_MODE 1057 * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER 1058 * @see CaptureRequest#CONTROL_MODE 1059 * @see CaptureRequest#CONTROL_SCENE_MODE 1060 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 1061 * @see #CONTROL_AE_STATE_INACTIVE 1062 * @see #CONTROL_AE_STATE_SEARCHING 1063 * @see #CONTROL_AE_STATE_CONVERGED 1064 * @see #CONTROL_AE_STATE_LOCKED 1065 * @see #CONTROL_AE_STATE_FLASH_REQUIRED 1066 * @see #CONTROL_AE_STATE_PRECAPTURE 1067 */ 1068 @PublicKey 1069 public static final Key<Integer> CONTROL_AE_STATE = 1070 new Key<Integer>("android.control.aeState", int.class); 1071 1072 /** 1073 * <p>Whether auto-focus (AF) is currently enabled, and what 1074 * mode it is set to.</p> 1075 * <p>Only effective if {@link CaptureRequest#CONTROL_MODE android.control.mode} = AUTO and the lens is not fixed focus 1076 * (i.e. <code>{@link CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance} > 0</code>). Also note that 1077 * when {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is OFF, the behavior of AF is device 1078 * dependent. It is recommended to lock AF by using {@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger} before 1079 * setting {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} to OFF, or set AF mode to OFF when AE is OFF.</p> 1080 * <p>If the lens is controlled by the camera device auto-focus algorithm, 1081 * the camera device will report the current AF status in {@link CaptureResult#CONTROL_AF_STATE android.control.afState} 1082 * in result metadata.</p> 1083 * <p><b>Possible values:</b> 1084 * <ul> 1085 * <li>{@link #CONTROL_AF_MODE_OFF OFF}</li> 1086 * <li>{@link #CONTROL_AF_MODE_AUTO AUTO}</li> 1087 * <li>{@link #CONTROL_AF_MODE_MACRO MACRO}</li> 1088 * <li>{@link #CONTROL_AF_MODE_CONTINUOUS_VIDEO CONTINUOUS_VIDEO}</li> 1089 * <li>{@link #CONTROL_AF_MODE_CONTINUOUS_PICTURE CONTINUOUS_PICTURE}</li> 1090 * <li>{@link #CONTROL_AF_MODE_EDOF EDOF}</li> 1091 * </ul></p> 1092 * <p><b>Available values for this device:</b><br> 1093 * {@link CameraCharacteristics#CONTROL_AF_AVAILABLE_MODES android.control.afAvailableModes}</p> 1094 * <p>This key is available on all devices.</p> 1095 * 1096 * @see CaptureRequest#CONTROL_AE_MODE 1097 * @see CameraCharacteristics#CONTROL_AF_AVAILABLE_MODES 1098 * @see CaptureResult#CONTROL_AF_STATE 1099 * @see CaptureRequest#CONTROL_AF_TRIGGER 1100 * @see CaptureRequest#CONTROL_MODE 1101 * @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE 1102 * @see #CONTROL_AF_MODE_OFF 1103 * @see #CONTROL_AF_MODE_AUTO 1104 * @see #CONTROL_AF_MODE_MACRO 1105 * @see #CONTROL_AF_MODE_CONTINUOUS_VIDEO 1106 * @see #CONTROL_AF_MODE_CONTINUOUS_PICTURE 1107 * @see #CONTROL_AF_MODE_EDOF 1108 */ 1109 @PublicKey 1110 public static final Key<Integer> CONTROL_AF_MODE = 1111 new Key<Integer>("android.control.afMode", int.class); 1112 1113 /** 1114 * <p>List of metering areas to use for auto-focus.</p> 1115 * <p>Not available if {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AF android.control.maxRegionsAf} is 0. 1116 * Otherwise will always be present.</p> 1117 * <p>The maximum number of focus areas supported by the device is determined by the value 1118 * of {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AF android.control.maxRegionsAf}.</p> 1119 * <p>The coordinate system is based on the active pixel array, 1120 * with (0,0) being the top-left pixel in the active pixel array, and 1121 * ({@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.width - 1, 1122 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.height - 1) being the 1123 * bottom-right pixel in the active pixel array.</p> 1124 * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight 1125 * for every pixel in the area. This means that a large metering area 1126 * with the same weight as a smaller area will have more effect in 1127 * the metering result. Metering areas can partially overlap and the 1128 * camera device will add the weights in the overlap region.</p> 1129 * <p>The weights are relative to weights of other metering regions, so if only one region 1130 * is used, all non-zero weights will have the same effect. A region with 0 weight is 1131 * ignored.</p> 1132 * <p>If all regions have 0 weight, then no specific metering area needs to be used by the 1133 * camera device.</p> 1134 * <p>If the metering region is outside the used {@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion} returned in 1135 * capture result metadata, the camera device will ignore the sections outside the crop 1136 * region and output only the intersection rectangle as the metering region in the result 1137 * metadata. If the region is entirely outside the crop region, it will be ignored and 1138 * not reported in the result metadata.</p> 1139 * <p><b>Units</b>: Pixel coordinates within {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 1140 * <p><b>Range of valid values:</b><br> 1141 * Coordinates must be between <code>[(0,0), (width, height))</code> of 1142 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 1143 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1144 * 1145 * @see CameraCharacteristics#CONTROL_MAX_REGIONS_AF 1146 * @see CaptureRequest#SCALER_CROP_REGION 1147 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 1148 */ 1149 @PublicKey 1150 public static final Key<android.hardware.camera2.params.MeteringRectangle[]> CONTROL_AF_REGIONS = 1151 new Key<android.hardware.camera2.params.MeteringRectangle[]>("android.control.afRegions", android.hardware.camera2.params.MeteringRectangle[].class); 1152 1153 /** 1154 * <p>Whether the camera device will trigger autofocus for this request.</p> 1155 * <p>This entry is normally set to IDLE, or is not 1156 * included at all in the request settings.</p> 1157 * <p>When included and set to START, the camera device will trigger the 1158 * autofocus algorithm. If autofocus is disabled, this trigger has no effect.</p> 1159 * <p>When set to CANCEL, the camera device will cancel any active trigger, 1160 * and return to its initial AF state.</p> 1161 * <p>Generally, applications should set this entry to START or CANCEL for only a 1162 * single capture, and then return it to IDLE (or not set at all). Specifying 1163 * START for multiple captures in a row means restarting the AF operation over 1164 * and over again.</p> 1165 * <p>See {@link CaptureResult#CONTROL_AF_STATE android.control.afState} for what the trigger means for each AF mode.</p> 1166 * <p>Using the autofocus trigger and the precapture trigger {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} 1167 * simultaneously is allowed. However, since these triggers often require cooperation between 1168 * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a 1169 * focus sweep), the camera device may delay acting on a later trigger until the previous 1170 * trigger has been fully handled. This may lead to longer intervals between the trigger and 1171 * changes to {@link CaptureResult#CONTROL_AF_STATE android.control.afState}, for example.</p> 1172 * <p><b>Possible values:</b> 1173 * <ul> 1174 * <li>{@link #CONTROL_AF_TRIGGER_IDLE IDLE}</li> 1175 * <li>{@link #CONTROL_AF_TRIGGER_START START}</li> 1176 * <li>{@link #CONTROL_AF_TRIGGER_CANCEL CANCEL}</li> 1177 * </ul></p> 1178 * <p>This key is available on all devices.</p> 1179 * 1180 * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER 1181 * @see CaptureResult#CONTROL_AF_STATE 1182 * @see #CONTROL_AF_TRIGGER_IDLE 1183 * @see #CONTROL_AF_TRIGGER_START 1184 * @see #CONTROL_AF_TRIGGER_CANCEL 1185 */ 1186 @PublicKey 1187 public static final Key<Integer> CONTROL_AF_TRIGGER = 1188 new Key<Integer>("android.control.afTrigger", int.class); 1189 1190 /** 1191 * <p>Current state of auto-focus (AF) algorithm.</p> 1192 * <p>Switching between or enabling AF modes ({@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}) always 1193 * resets the AF state to INACTIVE. Similarly, switching between {@link CaptureRequest#CONTROL_MODE android.control.mode}, 1194 * or {@link CaptureRequest#CONTROL_SCENE_MODE android.control.sceneMode} if <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} == USE_SCENE_MODE</code> resets all 1195 * the algorithm states to INACTIVE.</p> 1196 * <p>The camera device can do several state transitions between two results, if it is 1197 * allowed by the state transition table. For example: INACTIVE may never actually be 1198 * seen in a result.</p> 1199 * <p>The state in the result is the state for this image (in sync with this image): if 1200 * AF state becomes FOCUSED, then the image data associated with this result should 1201 * be sharp.</p> 1202 * <p>Below are state transition tables for different AF modes.</p> 1203 * <p>When {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode} is AF_MODE_OFF or AF_MODE_EDOF:</p> 1204 * <table> 1205 * <thead> 1206 * <tr> 1207 * <th align="center">State</th> 1208 * <th align="center">Transition Cause</th> 1209 * <th align="center">New State</th> 1210 * <th align="center">Notes</th> 1211 * </tr> 1212 * </thead> 1213 * <tbody> 1214 * <tr> 1215 * <td align="center">INACTIVE</td> 1216 * <td align="center"></td> 1217 * <td align="center">INACTIVE</td> 1218 * <td align="center">Never changes</td> 1219 * </tr> 1220 * </tbody> 1221 * </table> 1222 * <p>When {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode} is AF_MODE_AUTO or AF_MODE_MACRO:</p> 1223 * <table> 1224 * <thead> 1225 * <tr> 1226 * <th align="center">State</th> 1227 * <th align="center">Transition Cause</th> 1228 * <th align="center">New State</th> 1229 * <th align="center">Notes</th> 1230 * </tr> 1231 * </thead> 1232 * <tbody> 1233 * <tr> 1234 * <td align="center">INACTIVE</td> 1235 * <td align="center">AF_TRIGGER</td> 1236 * <td align="center">ACTIVE_SCAN</td> 1237 * <td align="center">Start AF sweep, Lens now moving</td> 1238 * </tr> 1239 * <tr> 1240 * <td align="center">ACTIVE_SCAN</td> 1241 * <td align="center">AF sweep done</td> 1242 * <td align="center">FOCUSED_LOCKED</td> 1243 * <td align="center">Focused, Lens now locked</td> 1244 * </tr> 1245 * <tr> 1246 * <td align="center">ACTIVE_SCAN</td> 1247 * <td align="center">AF sweep done</td> 1248 * <td align="center">NOT_FOCUSED_LOCKED</td> 1249 * <td align="center">Not focused, Lens now locked</td> 1250 * </tr> 1251 * <tr> 1252 * <td align="center">ACTIVE_SCAN</td> 1253 * <td align="center">AF_CANCEL</td> 1254 * <td align="center">INACTIVE</td> 1255 * <td align="center">Cancel/reset AF, Lens now locked</td> 1256 * </tr> 1257 * <tr> 1258 * <td align="center">FOCUSED_LOCKED</td> 1259 * <td align="center">AF_CANCEL</td> 1260 * <td align="center">INACTIVE</td> 1261 * <td align="center">Cancel/reset AF</td> 1262 * </tr> 1263 * <tr> 1264 * <td align="center">FOCUSED_LOCKED</td> 1265 * <td align="center">AF_TRIGGER</td> 1266 * <td align="center">ACTIVE_SCAN</td> 1267 * <td align="center">Start new sweep, Lens now moving</td> 1268 * </tr> 1269 * <tr> 1270 * <td align="center">NOT_FOCUSED_LOCKED</td> 1271 * <td align="center">AF_CANCEL</td> 1272 * <td align="center">INACTIVE</td> 1273 * <td align="center">Cancel/reset AF</td> 1274 * </tr> 1275 * <tr> 1276 * <td align="center">NOT_FOCUSED_LOCKED</td> 1277 * <td align="center">AF_TRIGGER</td> 1278 * <td align="center">ACTIVE_SCAN</td> 1279 * <td align="center">Start new sweep, Lens now moving</td> 1280 * </tr> 1281 * <tr> 1282 * <td align="center">Any state</td> 1283 * <td align="center">Mode change</td> 1284 * <td align="center">INACTIVE</td> 1285 * <td align="center"></td> 1286 * </tr> 1287 * </tbody> 1288 * </table> 1289 * <p>For the above table, the camera device may skip reporting any state changes that happen 1290 * without application intervention (i.e. mode switch, trigger, locking). Any state that 1291 * can be skipped in that manner is called a transient state.</p> 1292 * <p>For example, for these AF modes (AF_MODE_AUTO and AF_MODE_MACRO), in addition to the 1293 * state transitions listed in above table, it is also legal for the camera device to skip 1294 * one or more transient states between two results. See below table for examples:</p> 1295 * <table> 1296 * <thead> 1297 * <tr> 1298 * <th align="center">State</th> 1299 * <th align="center">Transition Cause</th> 1300 * <th align="center">New State</th> 1301 * <th align="center">Notes</th> 1302 * </tr> 1303 * </thead> 1304 * <tbody> 1305 * <tr> 1306 * <td align="center">INACTIVE</td> 1307 * <td align="center">AF_TRIGGER</td> 1308 * <td align="center">FOCUSED_LOCKED</td> 1309 * <td align="center">Focus is already good or good after a scan, lens is now locked.</td> 1310 * </tr> 1311 * <tr> 1312 * <td align="center">INACTIVE</td> 1313 * <td align="center">AF_TRIGGER</td> 1314 * <td align="center">NOT_FOCUSED_LOCKED</td> 1315 * <td align="center">Focus failed after a scan, lens is now locked.</td> 1316 * </tr> 1317 * <tr> 1318 * <td align="center">FOCUSED_LOCKED</td> 1319 * <td align="center">AF_TRIGGER</td> 1320 * <td align="center">FOCUSED_LOCKED</td> 1321 * <td align="center">Focus is already good or good after a scan, lens is now locked.</td> 1322 * </tr> 1323 * <tr> 1324 * <td align="center">NOT_FOCUSED_LOCKED</td> 1325 * <td align="center">AF_TRIGGER</td> 1326 * <td align="center">FOCUSED_LOCKED</td> 1327 * <td align="center">Focus is good after a scan, lens is not locked.</td> 1328 * </tr> 1329 * </tbody> 1330 * </table> 1331 * <p>When {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode} is AF_MODE_CONTINUOUS_VIDEO:</p> 1332 * <table> 1333 * <thead> 1334 * <tr> 1335 * <th align="center">State</th> 1336 * <th align="center">Transition Cause</th> 1337 * <th align="center">New State</th> 1338 * <th align="center">Notes</th> 1339 * </tr> 1340 * </thead> 1341 * <tbody> 1342 * <tr> 1343 * <td align="center">INACTIVE</td> 1344 * <td align="center">Camera device initiates new scan</td> 1345 * <td align="center">PASSIVE_SCAN</td> 1346 * <td align="center">Start AF scan, Lens now moving</td> 1347 * </tr> 1348 * <tr> 1349 * <td align="center">INACTIVE</td> 1350 * <td align="center">AF_TRIGGER</td> 1351 * <td align="center">NOT_FOCUSED_LOCKED</td> 1352 * <td align="center">AF state query, Lens now locked</td> 1353 * </tr> 1354 * <tr> 1355 * <td align="center">PASSIVE_SCAN</td> 1356 * <td align="center">Camera device completes current scan</td> 1357 * <td align="center">PASSIVE_FOCUSED</td> 1358 * <td align="center">End AF scan, Lens now locked</td> 1359 * </tr> 1360 * <tr> 1361 * <td align="center">PASSIVE_SCAN</td> 1362 * <td align="center">Camera device fails current scan</td> 1363 * <td align="center">PASSIVE_UNFOCUSED</td> 1364 * <td align="center">End AF scan, Lens now locked</td> 1365 * </tr> 1366 * <tr> 1367 * <td align="center">PASSIVE_SCAN</td> 1368 * <td align="center">AF_TRIGGER</td> 1369 * <td align="center">FOCUSED_LOCKED</td> 1370 * <td align="center">Immediate transition, if focus is good. Lens now locked</td> 1371 * </tr> 1372 * <tr> 1373 * <td align="center">PASSIVE_SCAN</td> 1374 * <td align="center">AF_TRIGGER</td> 1375 * <td align="center">NOT_FOCUSED_LOCKED</td> 1376 * <td align="center">Immediate transition, if focus is bad. Lens now locked</td> 1377 * </tr> 1378 * <tr> 1379 * <td align="center">PASSIVE_SCAN</td> 1380 * <td align="center">AF_CANCEL</td> 1381 * <td align="center">INACTIVE</td> 1382 * <td align="center">Reset lens position, Lens now locked</td> 1383 * </tr> 1384 * <tr> 1385 * <td align="center">PASSIVE_FOCUSED</td> 1386 * <td align="center">Camera device initiates new scan</td> 1387 * <td align="center">PASSIVE_SCAN</td> 1388 * <td align="center">Start AF scan, Lens now moving</td> 1389 * </tr> 1390 * <tr> 1391 * <td align="center">PASSIVE_UNFOCUSED</td> 1392 * <td align="center">Camera device initiates new scan</td> 1393 * <td align="center">PASSIVE_SCAN</td> 1394 * <td align="center">Start AF scan, Lens now moving</td> 1395 * </tr> 1396 * <tr> 1397 * <td align="center">PASSIVE_FOCUSED</td> 1398 * <td align="center">AF_TRIGGER</td> 1399 * <td align="center">FOCUSED_LOCKED</td> 1400 * <td align="center">Immediate transition, lens now locked</td> 1401 * </tr> 1402 * <tr> 1403 * <td align="center">PASSIVE_UNFOCUSED</td> 1404 * <td align="center">AF_TRIGGER</td> 1405 * <td align="center">NOT_FOCUSED_LOCKED</td> 1406 * <td align="center">Immediate transition, lens now locked</td> 1407 * </tr> 1408 * <tr> 1409 * <td align="center">FOCUSED_LOCKED</td> 1410 * <td align="center">AF_TRIGGER</td> 1411 * <td align="center">FOCUSED_LOCKED</td> 1412 * <td align="center">No effect</td> 1413 * </tr> 1414 * <tr> 1415 * <td align="center">FOCUSED_LOCKED</td> 1416 * <td align="center">AF_CANCEL</td> 1417 * <td align="center">INACTIVE</td> 1418 * <td align="center">Restart AF scan</td> 1419 * </tr> 1420 * <tr> 1421 * <td align="center">NOT_FOCUSED_LOCKED</td> 1422 * <td align="center">AF_TRIGGER</td> 1423 * <td align="center">NOT_FOCUSED_LOCKED</td> 1424 * <td align="center">No effect</td> 1425 * </tr> 1426 * <tr> 1427 * <td align="center">NOT_FOCUSED_LOCKED</td> 1428 * <td align="center">AF_CANCEL</td> 1429 * <td align="center">INACTIVE</td> 1430 * <td align="center">Restart AF scan</td> 1431 * </tr> 1432 * </tbody> 1433 * </table> 1434 * <p>When {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode} is AF_MODE_CONTINUOUS_PICTURE:</p> 1435 * <table> 1436 * <thead> 1437 * <tr> 1438 * <th align="center">State</th> 1439 * <th align="center">Transition Cause</th> 1440 * <th align="center">New State</th> 1441 * <th align="center">Notes</th> 1442 * </tr> 1443 * </thead> 1444 * <tbody> 1445 * <tr> 1446 * <td align="center">INACTIVE</td> 1447 * <td align="center">Camera device initiates new scan</td> 1448 * <td align="center">PASSIVE_SCAN</td> 1449 * <td align="center">Start AF scan, Lens now moving</td> 1450 * </tr> 1451 * <tr> 1452 * <td align="center">INACTIVE</td> 1453 * <td align="center">AF_TRIGGER</td> 1454 * <td align="center">NOT_FOCUSED_LOCKED</td> 1455 * <td align="center">AF state query, Lens now locked</td> 1456 * </tr> 1457 * <tr> 1458 * <td align="center">PASSIVE_SCAN</td> 1459 * <td align="center">Camera device completes current scan</td> 1460 * <td align="center">PASSIVE_FOCUSED</td> 1461 * <td align="center">End AF scan, Lens now locked</td> 1462 * </tr> 1463 * <tr> 1464 * <td align="center">PASSIVE_SCAN</td> 1465 * <td align="center">Camera device fails current scan</td> 1466 * <td align="center">PASSIVE_UNFOCUSED</td> 1467 * <td align="center">End AF scan, Lens now locked</td> 1468 * </tr> 1469 * <tr> 1470 * <td align="center">PASSIVE_SCAN</td> 1471 * <td align="center">AF_TRIGGER</td> 1472 * <td align="center">FOCUSED_LOCKED</td> 1473 * <td align="center">Eventual transition once the focus is good. Lens now locked</td> 1474 * </tr> 1475 * <tr> 1476 * <td align="center">PASSIVE_SCAN</td> 1477 * <td align="center">AF_TRIGGER</td> 1478 * <td align="center">NOT_FOCUSED_LOCKED</td> 1479 * <td align="center">Eventual transition if cannot find focus. Lens now locked</td> 1480 * </tr> 1481 * <tr> 1482 * <td align="center">PASSIVE_SCAN</td> 1483 * <td align="center">AF_CANCEL</td> 1484 * <td align="center">INACTIVE</td> 1485 * <td align="center">Reset lens position, Lens now locked</td> 1486 * </tr> 1487 * <tr> 1488 * <td align="center">PASSIVE_FOCUSED</td> 1489 * <td align="center">Camera device initiates new scan</td> 1490 * <td align="center">PASSIVE_SCAN</td> 1491 * <td align="center">Start AF scan, Lens now moving</td> 1492 * </tr> 1493 * <tr> 1494 * <td align="center">PASSIVE_UNFOCUSED</td> 1495 * <td align="center">Camera device initiates new scan</td> 1496 * <td align="center">PASSIVE_SCAN</td> 1497 * <td align="center">Start AF scan, Lens now moving</td> 1498 * </tr> 1499 * <tr> 1500 * <td align="center">PASSIVE_FOCUSED</td> 1501 * <td align="center">AF_TRIGGER</td> 1502 * <td align="center">FOCUSED_LOCKED</td> 1503 * <td align="center">Immediate trans. Lens now locked</td> 1504 * </tr> 1505 * <tr> 1506 * <td align="center">PASSIVE_UNFOCUSED</td> 1507 * <td align="center">AF_TRIGGER</td> 1508 * <td align="center">NOT_FOCUSED_LOCKED</td> 1509 * <td align="center">Immediate trans. Lens now locked</td> 1510 * </tr> 1511 * <tr> 1512 * <td align="center">FOCUSED_LOCKED</td> 1513 * <td align="center">AF_TRIGGER</td> 1514 * <td align="center">FOCUSED_LOCKED</td> 1515 * <td align="center">No effect</td> 1516 * </tr> 1517 * <tr> 1518 * <td align="center">FOCUSED_LOCKED</td> 1519 * <td align="center">AF_CANCEL</td> 1520 * <td align="center">INACTIVE</td> 1521 * <td align="center">Restart AF scan</td> 1522 * </tr> 1523 * <tr> 1524 * <td align="center">NOT_FOCUSED_LOCKED</td> 1525 * <td align="center">AF_TRIGGER</td> 1526 * <td align="center">NOT_FOCUSED_LOCKED</td> 1527 * <td align="center">No effect</td> 1528 * </tr> 1529 * <tr> 1530 * <td align="center">NOT_FOCUSED_LOCKED</td> 1531 * <td align="center">AF_CANCEL</td> 1532 * <td align="center">INACTIVE</td> 1533 * <td align="center">Restart AF scan</td> 1534 * </tr> 1535 * </tbody> 1536 * </table> 1537 * <p>When switch between AF_MODE_CONTINUOUS_* (CAF modes) and AF_MODE_AUTO/AF_MODE_MACRO 1538 * (AUTO modes), the initial INACTIVE or PASSIVE_SCAN states may be skipped by the 1539 * camera device. When a trigger is included in a mode switch request, the trigger 1540 * will be evaluated in the context of the new mode in the request. 1541 * See below table for examples:</p> 1542 * <table> 1543 * <thead> 1544 * <tr> 1545 * <th align="center">State</th> 1546 * <th align="center">Transition Cause</th> 1547 * <th align="center">New State</th> 1548 * <th align="center">Notes</th> 1549 * </tr> 1550 * </thead> 1551 * <tbody> 1552 * <tr> 1553 * <td align="center">any state</td> 1554 * <td align="center">CAF-->AUTO mode switch</td> 1555 * <td align="center">INACTIVE</td> 1556 * <td align="center">Mode switch without trigger, initial state must be INACTIVE</td> 1557 * </tr> 1558 * <tr> 1559 * <td align="center">any state</td> 1560 * <td align="center">CAF-->AUTO mode switch with AF_TRIGGER</td> 1561 * <td align="center">trigger-reachable states from INACTIVE</td> 1562 * <td align="center">Mode switch with trigger, INACTIVE is skipped</td> 1563 * </tr> 1564 * <tr> 1565 * <td align="center">any state</td> 1566 * <td align="center">AUTO-->CAF mode switch</td> 1567 * <td align="center">passively reachable states from INACTIVE</td> 1568 * <td align="center">Mode switch without trigger, passive transient state is skipped</td> 1569 * </tr> 1570 * </tbody> 1571 * </table> 1572 * <p><b>Possible values:</b> 1573 * <ul> 1574 * <li>{@link #CONTROL_AF_STATE_INACTIVE INACTIVE}</li> 1575 * <li>{@link #CONTROL_AF_STATE_PASSIVE_SCAN PASSIVE_SCAN}</li> 1576 * <li>{@link #CONTROL_AF_STATE_PASSIVE_FOCUSED PASSIVE_FOCUSED}</li> 1577 * <li>{@link #CONTROL_AF_STATE_ACTIVE_SCAN ACTIVE_SCAN}</li> 1578 * <li>{@link #CONTROL_AF_STATE_FOCUSED_LOCKED FOCUSED_LOCKED}</li> 1579 * <li>{@link #CONTROL_AF_STATE_NOT_FOCUSED_LOCKED NOT_FOCUSED_LOCKED}</li> 1580 * <li>{@link #CONTROL_AF_STATE_PASSIVE_UNFOCUSED PASSIVE_UNFOCUSED}</li> 1581 * </ul></p> 1582 * <p>This key is available on all devices.</p> 1583 * 1584 * @see CaptureRequest#CONTROL_AF_MODE 1585 * @see CaptureRequest#CONTROL_MODE 1586 * @see CaptureRequest#CONTROL_SCENE_MODE 1587 * @see #CONTROL_AF_STATE_INACTIVE 1588 * @see #CONTROL_AF_STATE_PASSIVE_SCAN 1589 * @see #CONTROL_AF_STATE_PASSIVE_FOCUSED 1590 * @see #CONTROL_AF_STATE_ACTIVE_SCAN 1591 * @see #CONTROL_AF_STATE_FOCUSED_LOCKED 1592 * @see #CONTROL_AF_STATE_NOT_FOCUSED_LOCKED 1593 * @see #CONTROL_AF_STATE_PASSIVE_UNFOCUSED 1594 */ 1595 @PublicKey 1596 public static final Key<Integer> CONTROL_AF_STATE = 1597 new Key<Integer>("android.control.afState", int.class); 1598 1599 /** 1600 * <p>Whether auto-white balance (AWB) is currently locked to its 1601 * latest calculated values.</p> 1602 * <p>When set to <code>true</code> (ON), the AWB algorithm is locked to its latest parameters, 1603 * and will not change color balance settings until the lock is set to <code>false</code> (OFF).</p> 1604 * <p>Since the camera device has a pipeline of in-flight requests, the settings that 1605 * get locked do not necessarily correspond to the settings that were present in the 1606 * latest capture result received from the camera device, since additional captures 1607 * and AWB updates may have occurred even before the result was sent out. If an 1608 * application is switching between automatic and manual control and wishes to eliminate 1609 * any flicker during the switch, the following procedure is recommended:</p> 1610 * <ol> 1611 * <li>Starting in auto-AWB mode:</li> 1612 * <li>Lock AWB</li> 1613 * <li>Wait for the first result to be output that has the AWB locked</li> 1614 * <li>Copy AWB settings from that result into a request, set the request to manual AWB</li> 1615 * <li>Submit the capture request, proceed to run manual AWB as desired.</li> 1616 * </ol> 1617 * <p>Note that AWB lock is only meaningful when 1618 * {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} is in the AUTO mode; in other modes, 1619 * AWB is already fixed to a specific setting.</p> 1620 * <p>Some LEGACY devices may not support ON; the value is then overridden to OFF.</p> 1621 * <p>This key is available on all devices.</p> 1622 * 1623 * @see CaptureRequest#CONTROL_AWB_MODE 1624 */ 1625 @PublicKey 1626 public static final Key<Boolean> CONTROL_AWB_LOCK = 1627 new Key<Boolean>("android.control.awbLock", boolean.class); 1628 1629 /** 1630 * <p>Whether auto-white balance (AWB) is currently setting the color 1631 * transform fields, and what its illumination target 1632 * is.</p> 1633 * <p>This control is only effective if {@link CaptureRequest#CONTROL_MODE android.control.mode} is AUTO.</p> 1634 * <p>When set to the ON mode, the camera device's auto-white balance 1635 * routine is enabled, overriding the application's selected 1636 * {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}, {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} and 1637 * {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode}. Note that when {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} 1638 * is OFF, the behavior of AWB is device dependent. It is recommened to 1639 * also set AWB mode to OFF or lock AWB by using {@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock} before 1640 * setting AE mode to OFF.</p> 1641 * <p>When set to the OFF mode, the camera device's auto-white balance 1642 * routine is disabled. The application manually controls the white 1643 * balance by {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}, {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} 1644 * and {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode}.</p> 1645 * <p>When set to any other modes, the camera device's auto-white 1646 * balance routine is disabled. The camera device uses each 1647 * particular illumination target for white balance 1648 * adjustment. The application's values for 1649 * {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}, 1650 * {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} and 1651 * {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} are ignored.</p> 1652 * <p><b>Possible values:</b> 1653 * <ul> 1654 * <li>{@link #CONTROL_AWB_MODE_OFF OFF}</li> 1655 * <li>{@link #CONTROL_AWB_MODE_AUTO AUTO}</li> 1656 * <li>{@link #CONTROL_AWB_MODE_INCANDESCENT INCANDESCENT}</li> 1657 * <li>{@link #CONTROL_AWB_MODE_FLUORESCENT FLUORESCENT}</li> 1658 * <li>{@link #CONTROL_AWB_MODE_WARM_FLUORESCENT WARM_FLUORESCENT}</li> 1659 * <li>{@link #CONTROL_AWB_MODE_DAYLIGHT DAYLIGHT}</li> 1660 * <li>{@link #CONTROL_AWB_MODE_CLOUDY_DAYLIGHT CLOUDY_DAYLIGHT}</li> 1661 * <li>{@link #CONTROL_AWB_MODE_TWILIGHT TWILIGHT}</li> 1662 * <li>{@link #CONTROL_AWB_MODE_SHADE SHADE}</li> 1663 * </ul></p> 1664 * <p><b>Available values for this device:</b><br> 1665 * {@link CameraCharacteristics#CONTROL_AWB_AVAILABLE_MODES android.control.awbAvailableModes}</p> 1666 * <p>This key is available on all devices.</p> 1667 * 1668 * @see CaptureRequest#COLOR_CORRECTION_GAINS 1669 * @see CaptureRequest#COLOR_CORRECTION_MODE 1670 * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM 1671 * @see CaptureRequest#CONTROL_AE_MODE 1672 * @see CameraCharacteristics#CONTROL_AWB_AVAILABLE_MODES 1673 * @see CaptureRequest#CONTROL_AWB_LOCK 1674 * @see CaptureRequest#CONTROL_MODE 1675 * @see #CONTROL_AWB_MODE_OFF 1676 * @see #CONTROL_AWB_MODE_AUTO 1677 * @see #CONTROL_AWB_MODE_INCANDESCENT 1678 * @see #CONTROL_AWB_MODE_FLUORESCENT 1679 * @see #CONTROL_AWB_MODE_WARM_FLUORESCENT 1680 * @see #CONTROL_AWB_MODE_DAYLIGHT 1681 * @see #CONTROL_AWB_MODE_CLOUDY_DAYLIGHT 1682 * @see #CONTROL_AWB_MODE_TWILIGHT 1683 * @see #CONTROL_AWB_MODE_SHADE 1684 */ 1685 @PublicKey 1686 public static final Key<Integer> CONTROL_AWB_MODE = 1687 new Key<Integer>("android.control.awbMode", int.class); 1688 1689 /** 1690 * <p>List of metering areas to use for auto-white-balance illuminant 1691 * estimation.</p> 1692 * <p>Not available if {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AWB android.control.maxRegionsAwb} is 0. 1693 * Otherwise will always be present.</p> 1694 * <p>The maximum number of regions supported by the device is determined by the value 1695 * of {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AWB android.control.maxRegionsAwb}.</p> 1696 * <p>The coordinate system is based on the active pixel array, 1697 * with (0,0) being the top-left pixel in the active pixel array, and 1698 * ({@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.width - 1, 1699 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.height - 1) being the 1700 * bottom-right pixel in the active pixel array.</p> 1701 * <p>The weight must range from 0 to 1000, and represents a weight 1702 * for every pixel in the area. This means that a large metering area 1703 * with the same weight as a smaller area will have more effect in 1704 * the metering result. Metering areas can partially overlap and the 1705 * camera device will add the weights in the overlap region.</p> 1706 * <p>The weights are relative to weights of other white balance metering regions, so if 1707 * only one region is used, all non-zero weights will have the same effect. A region with 1708 * 0 weight is ignored.</p> 1709 * <p>If all regions have 0 weight, then no specific metering area needs to be used by the 1710 * camera device.</p> 1711 * <p>If the metering region is outside the used {@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion} returned in 1712 * capture result metadata, the camera device will ignore the sections outside the crop 1713 * region and output only the intersection rectangle as the metering region in the result 1714 * metadata. If the region is entirely outside the crop region, it will be ignored and 1715 * not reported in the result metadata.</p> 1716 * <p><b>Units</b>: Pixel coordinates within {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 1717 * <p><b>Range of valid values:</b><br> 1718 * Coordinates must be between <code>[(0,0), (width, height))</code> of 1719 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 1720 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1721 * 1722 * @see CameraCharacteristics#CONTROL_MAX_REGIONS_AWB 1723 * @see CaptureRequest#SCALER_CROP_REGION 1724 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 1725 */ 1726 @PublicKey 1727 public static final Key<android.hardware.camera2.params.MeteringRectangle[]> CONTROL_AWB_REGIONS = 1728 new Key<android.hardware.camera2.params.MeteringRectangle[]>("android.control.awbRegions", android.hardware.camera2.params.MeteringRectangle[].class); 1729 1730 /** 1731 * <p>Information to the camera device 3A (auto-exposure, 1732 * auto-focus, auto-white balance) routines about the purpose 1733 * of this capture, to help the camera device to decide optimal 3A 1734 * strategy.</p> 1735 * <p>This control (except for MANUAL) is only effective if 1736 * <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} != OFF</code> and any 3A routine is active.</p> 1737 * <p>ZERO_SHUTTER_LAG will be supported if {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} 1738 * contains PRIVATE_REPROCESSING or YUV_REPROCESSING. MANUAL will be supported if 1739 * {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} contains MANUAL_SENSOR. Other intent values are 1740 * always supported.</p> 1741 * <p><b>Possible values:</b> 1742 * <ul> 1743 * <li>{@link #CONTROL_CAPTURE_INTENT_CUSTOM CUSTOM}</li> 1744 * <li>{@link #CONTROL_CAPTURE_INTENT_PREVIEW PREVIEW}</li> 1745 * <li>{@link #CONTROL_CAPTURE_INTENT_STILL_CAPTURE STILL_CAPTURE}</li> 1746 * <li>{@link #CONTROL_CAPTURE_INTENT_VIDEO_RECORD VIDEO_RECORD}</li> 1747 * <li>{@link #CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT VIDEO_SNAPSHOT}</li> 1748 * <li>{@link #CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG ZERO_SHUTTER_LAG}</li> 1749 * <li>{@link #CONTROL_CAPTURE_INTENT_MANUAL MANUAL}</li> 1750 * </ul></p> 1751 * <p>This key is available on all devices.</p> 1752 * 1753 * @see CaptureRequest#CONTROL_MODE 1754 * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES 1755 * @see #CONTROL_CAPTURE_INTENT_CUSTOM 1756 * @see #CONTROL_CAPTURE_INTENT_PREVIEW 1757 * @see #CONTROL_CAPTURE_INTENT_STILL_CAPTURE 1758 * @see #CONTROL_CAPTURE_INTENT_VIDEO_RECORD 1759 * @see #CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT 1760 * @see #CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG 1761 * @see #CONTROL_CAPTURE_INTENT_MANUAL 1762 */ 1763 @PublicKey 1764 public static final Key<Integer> CONTROL_CAPTURE_INTENT = 1765 new Key<Integer>("android.control.captureIntent", int.class); 1766 1767 /** 1768 * <p>Current state of auto-white balance (AWB) algorithm.</p> 1769 * <p>Switching between or enabling AWB modes ({@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode}) always 1770 * resets the AWB state to INACTIVE. Similarly, switching between {@link CaptureRequest#CONTROL_MODE android.control.mode}, 1771 * or {@link CaptureRequest#CONTROL_SCENE_MODE android.control.sceneMode} if <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} == USE_SCENE_MODE</code> resets all 1772 * the algorithm states to INACTIVE.</p> 1773 * <p>The camera device can do several state transitions between two results, if it is 1774 * allowed by the state transition table. So INACTIVE may never actually be seen in 1775 * a result.</p> 1776 * <p>The state in the result is the state for this image (in sync with this image): if 1777 * AWB state becomes CONVERGED, then the image data associated with this result should 1778 * be good to use.</p> 1779 * <p>Below are state transition tables for different AWB modes.</p> 1780 * <p>When <code>{@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} != AWB_MODE_AUTO</code>:</p> 1781 * <table> 1782 * <thead> 1783 * <tr> 1784 * <th align="center">State</th> 1785 * <th align="center">Transition Cause</th> 1786 * <th align="center">New State</th> 1787 * <th align="center">Notes</th> 1788 * </tr> 1789 * </thead> 1790 * <tbody> 1791 * <tr> 1792 * <td align="center">INACTIVE</td> 1793 * <td align="center"></td> 1794 * <td align="center">INACTIVE</td> 1795 * <td align="center">Camera device auto white balance algorithm is disabled</td> 1796 * </tr> 1797 * </tbody> 1798 * </table> 1799 * <p>When {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} is AWB_MODE_AUTO:</p> 1800 * <table> 1801 * <thead> 1802 * <tr> 1803 * <th align="center">State</th> 1804 * <th align="center">Transition Cause</th> 1805 * <th align="center">New State</th> 1806 * <th align="center">Notes</th> 1807 * </tr> 1808 * </thead> 1809 * <tbody> 1810 * <tr> 1811 * <td align="center">INACTIVE</td> 1812 * <td align="center">Camera device initiates AWB scan</td> 1813 * <td align="center">SEARCHING</td> 1814 * <td align="center">Values changing</td> 1815 * </tr> 1816 * <tr> 1817 * <td align="center">INACTIVE</td> 1818 * <td align="center">{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock} is ON</td> 1819 * <td align="center">LOCKED</td> 1820 * <td align="center">Values locked</td> 1821 * </tr> 1822 * <tr> 1823 * <td align="center">SEARCHING</td> 1824 * <td align="center">Camera device finishes AWB scan</td> 1825 * <td align="center">CONVERGED</td> 1826 * <td align="center">Good values, not changing</td> 1827 * </tr> 1828 * <tr> 1829 * <td align="center">SEARCHING</td> 1830 * <td align="center">{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock} is ON</td> 1831 * <td align="center">LOCKED</td> 1832 * <td align="center">Values locked</td> 1833 * </tr> 1834 * <tr> 1835 * <td align="center">CONVERGED</td> 1836 * <td align="center">Camera device initiates AWB scan</td> 1837 * <td align="center">SEARCHING</td> 1838 * <td align="center">Values changing</td> 1839 * </tr> 1840 * <tr> 1841 * <td align="center">CONVERGED</td> 1842 * <td align="center">{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock} is ON</td> 1843 * <td align="center">LOCKED</td> 1844 * <td align="center">Values locked</td> 1845 * </tr> 1846 * <tr> 1847 * <td align="center">LOCKED</td> 1848 * <td align="center">{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock} is OFF</td> 1849 * <td align="center">SEARCHING</td> 1850 * <td align="center">Values not good after unlock</td> 1851 * </tr> 1852 * </tbody> 1853 * </table> 1854 * <p>For the above table, the camera device may skip reporting any state changes that happen 1855 * without application intervention (i.e. mode switch, trigger, locking). Any state that 1856 * can be skipped in that manner is called a transient state.</p> 1857 * <p>For example, for this AWB mode (AWB_MODE_AUTO), in addition to the state transitions 1858 * listed in above table, it is also legal for the camera device to skip one or more 1859 * transient states between two results. See below table for examples:</p> 1860 * <table> 1861 * <thead> 1862 * <tr> 1863 * <th align="center">State</th> 1864 * <th align="center">Transition Cause</th> 1865 * <th align="center">New State</th> 1866 * <th align="center">Notes</th> 1867 * </tr> 1868 * </thead> 1869 * <tbody> 1870 * <tr> 1871 * <td align="center">INACTIVE</td> 1872 * <td align="center">Camera device finished AWB scan</td> 1873 * <td align="center">CONVERGED</td> 1874 * <td align="center">Values are already good, transient states are skipped by camera device.</td> 1875 * </tr> 1876 * <tr> 1877 * <td align="center">LOCKED</td> 1878 * <td align="center">{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock} is OFF</td> 1879 * <td align="center">CONVERGED</td> 1880 * <td align="center">Values good after unlock, transient states are skipped by camera device.</td> 1881 * </tr> 1882 * </tbody> 1883 * </table> 1884 * <p><b>Possible values:</b> 1885 * <ul> 1886 * <li>{@link #CONTROL_AWB_STATE_INACTIVE INACTIVE}</li> 1887 * <li>{@link #CONTROL_AWB_STATE_SEARCHING SEARCHING}</li> 1888 * <li>{@link #CONTROL_AWB_STATE_CONVERGED CONVERGED}</li> 1889 * <li>{@link #CONTROL_AWB_STATE_LOCKED LOCKED}</li> 1890 * </ul></p> 1891 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1892 * <p><b>Limited capability</b> - 1893 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 1894 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 1895 * 1896 * @see CaptureRequest#CONTROL_AWB_LOCK 1897 * @see CaptureRequest#CONTROL_AWB_MODE 1898 * @see CaptureRequest#CONTROL_MODE 1899 * @see CaptureRequest#CONTROL_SCENE_MODE 1900 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 1901 * @see #CONTROL_AWB_STATE_INACTIVE 1902 * @see #CONTROL_AWB_STATE_SEARCHING 1903 * @see #CONTROL_AWB_STATE_CONVERGED 1904 * @see #CONTROL_AWB_STATE_LOCKED 1905 */ 1906 @PublicKey 1907 public static final Key<Integer> CONTROL_AWB_STATE = 1908 new Key<Integer>("android.control.awbState", int.class); 1909 1910 /** 1911 * <p>A special color effect to apply.</p> 1912 * <p>When this mode is set, a color effect will be applied 1913 * to images produced by the camera device. The interpretation 1914 * and implementation of these color effects is left to the 1915 * implementor of the camera device, and should not be 1916 * depended on to be consistent (or present) across all 1917 * devices.</p> 1918 * <p><b>Possible values:</b> 1919 * <ul> 1920 * <li>{@link #CONTROL_EFFECT_MODE_OFF OFF}</li> 1921 * <li>{@link #CONTROL_EFFECT_MODE_MONO MONO}</li> 1922 * <li>{@link #CONTROL_EFFECT_MODE_NEGATIVE NEGATIVE}</li> 1923 * <li>{@link #CONTROL_EFFECT_MODE_SOLARIZE SOLARIZE}</li> 1924 * <li>{@link #CONTROL_EFFECT_MODE_SEPIA SEPIA}</li> 1925 * <li>{@link #CONTROL_EFFECT_MODE_POSTERIZE POSTERIZE}</li> 1926 * <li>{@link #CONTROL_EFFECT_MODE_WHITEBOARD WHITEBOARD}</li> 1927 * <li>{@link #CONTROL_EFFECT_MODE_BLACKBOARD BLACKBOARD}</li> 1928 * <li>{@link #CONTROL_EFFECT_MODE_AQUA AQUA}</li> 1929 * </ul></p> 1930 * <p><b>Available values for this device:</b><br> 1931 * {@link CameraCharacteristics#CONTROL_AVAILABLE_EFFECTS android.control.availableEffects}</p> 1932 * <p>This key is available on all devices.</p> 1933 * 1934 * @see CameraCharacteristics#CONTROL_AVAILABLE_EFFECTS 1935 * @see #CONTROL_EFFECT_MODE_OFF 1936 * @see #CONTROL_EFFECT_MODE_MONO 1937 * @see #CONTROL_EFFECT_MODE_NEGATIVE 1938 * @see #CONTROL_EFFECT_MODE_SOLARIZE 1939 * @see #CONTROL_EFFECT_MODE_SEPIA 1940 * @see #CONTROL_EFFECT_MODE_POSTERIZE 1941 * @see #CONTROL_EFFECT_MODE_WHITEBOARD 1942 * @see #CONTROL_EFFECT_MODE_BLACKBOARD 1943 * @see #CONTROL_EFFECT_MODE_AQUA 1944 */ 1945 @PublicKey 1946 public static final Key<Integer> CONTROL_EFFECT_MODE = 1947 new Key<Integer>("android.control.effectMode", int.class); 1948 1949 /** 1950 * <p>Overall mode of 3A (auto-exposure, auto-white-balance, auto-focus) control 1951 * routines.</p> 1952 * <p>This is a top-level 3A control switch. When set to OFF, all 3A control 1953 * by the camera device is disabled. The application must set the fields for 1954 * capture parameters itself.</p> 1955 * <p>When set to AUTO, the individual algorithm controls in 1956 * android.control.* are in effect, such as {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}.</p> 1957 * <p>When set to USE_SCENE_MODE, the individual controls in 1958 * android.control.* are mostly disabled, and the camera device implements 1959 * one of the scene mode settings (such as ACTION, SUNSET, or PARTY) 1960 * as it wishes. The camera device scene mode 3A settings are provided by 1961 * {@link android.hardware.camera2.CaptureResult capture results}.</p> 1962 * <p>When set to OFF_KEEP_STATE, it is similar to OFF mode, the only difference 1963 * is that this frame will not be used by camera device background 3A statistics 1964 * update, as if this frame is never captured. This mode can be used in the scenario 1965 * where the application doesn't want a 3A manual control capture to affect 1966 * the subsequent auto 3A capture results.</p> 1967 * <p><b>Possible values:</b> 1968 * <ul> 1969 * <li>{@link #CONTROL_MODE_OFF OFF}</li> 1970 * <li>{@link #CONTROL_MODE_AUTO AUTO}</li> 1971 * <li>{@link #CONTROL_MODE_USE_SCENE_MODE USE_SCENE_MODE}</li> 1972 * <li>{@link #CONTROL_MODE_OFF_KEEP_STATE OFF_KEEP_STATE}</li> 1973 * </ul></p> 1974 * <p><b>Available values for this device:</b><br> 1975 * {@link CameraCharacteristics#CONTROL_AVAILABLE_MODES android.control.availableModes}</p> 1976 * <p>This key is available on all devices.</p> 1977 * 1978 * @see CaptureRequest#CONTROL_AF_MODE 1979 * @see CameraCharacteristics#CONTROL_AVAILABLE_MODES 1980 * @see #CONTROL_MODE_OFF 1981 * @see #CONTROL_MODE_AUTO 1982 * @see #CONTROL_MODE_USE_SCENE_MODE 1983 * @see #CONTROL_MODE_OFF_KEEP_STATE 1984 */ 1985 @PublicKey 1986 public static final Key<Integer> CONTROL_MODE = 1987 new Key<Integer>("android.control.mode", int.class); 1988 1989 /** 1990 * <p>Control for which scene mode is currently active.</p> 1991 * <p>Scene modes are custom camera modes optimized for a certain set of conditions and 1992 * capture settings.</p> 1993 * <p>This is the mode that that is active when 1994 * <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} == USE_SCENE_MODE</code>. Aside from FACE_PRIORITY, these modes will 1995 * disable {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode}, {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode}, and {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode} 1996 * while in use.</p> 1997 * <p>The interpretation and implementation of these scene modes is left 1998 * to the implementor of the camera device. Their behavior will not be 1999 * consistent across all devices, and any given device may only implement 2000 * a subset of these modes.</p> 2001 * <p><b>Possible values:</b> 2002 * <ul> 2003 * <li>{@link #CONTROL_SCENE_MODE_DISABLED DISABLED}</li> 2004 * <li>{@link #CONTROL_SCENE_MODE_FACE_PRIORITY FACE_PRIORITY}</li> 2005 * <li>{@link #CONTROL_SCENE_MODE_ACTION ACTION}</li> 2006 * <li>{@link #CONTROL_SCENE_MODE_PORTRAIT PORTRAIT}</li> 2007 * <li>{@link #CONTROL_SCENE_MODE_LANDSCAPE LANDSCAPE}</li> 2008 * <li>{@link #CONTROL_SCENE_MODE_NIGHT NIGHT}</li> 2009 * <li>{@link #CONTROL_SCENE_MODE_NIGHT_PORTRAIT NIGHT_PORTRAIT}</li> 2010 * <li>{@link #CONTROL_SCENE_MODE_THEATRE THEATRE}</li> 2011 * <li>{@link #CONTROL_SCENE_MODE_BEACH BEACH}</li> 2012 * <li>{@link #CONTROL_SCENE_MODE_SNOW SNOW}</li> 2013 * <li>{@link #CONTROL_SCENE_MODE_SUNSET SUNSET}</li> 2014 * <li>{@link #CONTROL_SCENE_MODE_STEADYPHOTO STEADYPHOTO}</li> 2015 * <li>{@link #CONTROL_SCENE_MODE_FIREWORKS FIREWORKS}</li> 2016 * <li>{@link #CONTROL_SCENE_MODE_SPORTS SPORTS}</li> 2017 * <li>{@link #CONTROL_SCENE_MODE_PARTY PARTY}</li> 2018 * <li>{@link #CONTROL_SCENE_MODE_CANDLELIGHT CANDLELIGHT}</li> 2019 * <li>{@link #CONTROL_SCENE_MODE_BARCODE BARCODE}</li> 2020 * <li>{@link #CONTROL_SCENE_MODE_HIGH_SPEED_VIDEO HIGH_SPEED_VIDEO}</li> 2021 * <li>{@link #CONTROL_SCENE_MODE_HDR HDR}</li> 2022 * </ul></p> 2023 * <p><b>Available values for this device:</b><br> 2024 * {@link CameraCharacteristics#CONTROL_AVAILABLE_SCENE_MODES android.control.availableSceneModes}</p> 2025 * <p>This key is available on all devices.</p> 2026 * 2027 * @see CaptureRequest#CONTROL_AE_MODE 2028 * @see CaptureRequest#CONTROL_AF_MODE 2029 * @see CameraCharacteristics#CONTROL_AVAILABLE_SCENE_MODES 2030 * @see CaptureRequest#CONTROL_AWB_MODE 2031 * @see CaptureRequest#CONTROL_MODE 2032 * @see #CONTROL_SCENE_MODE_DISABLED 2033 * @see #CONTROL_SCENE_MODE_FACE_PRIORITY 2034 * @see #CONTROL_SCENE_MODE_ACTION 2035 * @see #CONTROL_SCENE_MODE_PORTRAIT 2036 * @see #CONTROL_SCENE_MODE_LANDSCAPE 2037 * @see #CONTROL_SCENE_MODE_NIGHT 2038 * @see #CONTROL_SCENE_MODE_NIGHT_PORTRAIT 2039 * @see #CONTROL_SCENE_MODE_THEATRE 2040 * @see #CONTROL_SCENE_MODE_BEACH 2041 * @see #CONTROL_SCENE_MODE_SNOW 2042 * @see #CONTROL_SCENE_MODE_SUNSET 2043 * @see #CONTROL_SCENE_MODE_STEADYPHOTO 2044 * @see #CONTROL_SCENE_MODE_FIREWORKS 2045 * @see #CONTROL_SCENE_MODE_SPORTS 2046 * @see #CONTROL_SCENE_MODE_PARTY 2047 * @see #CONTROL_SCENE_MODE_CANDLELIGHT 2048 * @see #CONTROL_SCENE_MODE_BARCODE 2049 * @see #CONTROL_SCENE_MODE_HIGH_SPEED_VIDEO 2050 * @see #CONTROL_SCENE_MODE_HDR 2051 */ 2052 @PublicKey 2053 public static final Key<Integer> CONTROL_SCENE_MODE = 2054 new Key<Integer>("android.control.sceneMode", int.class); 2055 2056 /** 2057 * <p>Whether video stabilization is 2058 * active.</p> 2059 * <p>Video stabilization automatically translates and scales images from 2060 * the camera in order to stabilize motion between consecutive frames.</p> 2061 * <p>If enabled, video stabilization can modify the 2062 * {@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion} to keep the video stream stabilized.</p> 2063 * <p>Switching between different video stabilization modes may take several 2064 * frames to initialize, the camera device will report the current mode 2065 * in capture result metadata. For example, When "ON" mode is requested, 2066 * the video stabilization modes in the first several capture results may 2067 * still be "OFF", and it will become "ON" when the initialization is 2068 * done.</p> 2069 * <p>If a camera device supports both this mode and OIS 2070 * ({@link CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE android.lens.opticalStabilizationMode}), turning both modes on may 2071 * produce undesirable interaction, so it is recommended not to enable 2072 * both at the same time.</p> 2073 * <p><b>Possible values:</b> 2074 * <ul> 2075 * <li>{@link #CONTROL_VIDEO_STABILIZATION_MODE_OFF OFF}</li> 2076 * <li>{@link #CONTROL_VIDEO_STABILIZATION_MODE_ON ON}</li> 2077 * </ul></p> 2078 * <p>This key is available on all devices.</p> 2079 * 2080 * @see CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE 2081 * @see CaptureRequest#SCALER_CROP_REGION 2082 * @see #CONTROL_VIDEO_STABILIZATION_MODE_OFF 2083 * @see #CONTROL_VIDEO_STABILIZATION_MODE_ON 2084 */ 2085 @PublicKey 2086 public static final Key<Integer> CONTROL_VIDEO_STABILIZATION_MODE = 2087 new Key<Integer>("android.control.videoStabilizationMode", int.class); 2088 2089 /** 2090 * <p>Operation mode for edge 2091 * enhancement.</p> 2092 * <p>Edge enhancement improves sharpness and details in the captured image. OFF means 2093 * no enhancement will be applied by the camera device.</p> 2094 * <p>FAST/HIGH_QUALITY both mean camera device determined enhancement 2095 * will be applied. HIGH_QUALITY mode indicates that the 2096 * camera device will use the highest-quality enhancement algorithms, 2097 * even if it slows down capture rate. FAST means the camera device will 2098 * not slow down capture rate when applying edge enhancement. FAST may be the same as OFF if 2099 * edge enhancement will slow down capture rate. Every output stream will have a similar 2100 * amount of enhancement applied.</p> 2101 * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular 2102 * buffer of high-resolution images during preview and reprocess image(s) from that buffer 2103 * into a final capture when triggered by the user. In this mode, the camera device applies 2104 * edge enhancement to low-resolution streams (below maximum recording resolution) to 2105 * maximize preview quality, but does not apply edge enhancement to high-resolution streams, 2106 * since those will be reprocessed later if necessary.</p> 2107 * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera 2108 * device will apply FAST/HIGH_QUALITY YUV-domain edge enhancement, respectively. 2109 * The camera device may adjust its internal edge enhancement parameters for best 2110 * image quality based on the {@link CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR android.reprocess.effectiveExposureFactor}, if it is set.</p> 2111 * <p><b>Possible values:</b> 2112 * <ul> 2113 * <li>{@link #EDGE_MODE_OFF OFF}</li> 2114 * <li>{@link #EDGE_MODE_FAST FAST}</li> 2115 * <li>{@link #EDGE_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 2116 * <li>{@link #EDGE_MODE_ZERO_SHUTTER_LAG ZERO_SHUTTER_LAG}</li> 2117 * </ul></p> 2118 * <p><b>Available values for this device:</b><br> 2119 * {@link CameraCharacteristics#EDGE_AVAILABLE_EDGE_MODES android.edge.availableEdgeModes}</p> 2120 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2121 * <p><b>Full capability</b> - 2122 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2123 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2124 * 2125 * @see CameraCharacteristics#EDGE_AVAILABLE_EDGE_MODES 2126 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2127 * @see CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR 2128 * @see #EDGE_MODE_OFF 2129 * @see #EDGE_MODE_FAST 2130 * @see #EDGE_MODE_HIGH_QUALITY 2131 * @see #EDGE_MODE_ZERO_SHUTTER_LAG 2132 */ 2133 @PublicKey 2134 public static final Key<Integer> EDGE_MODE = 2135 new Key<Integer>("android.edge.mode", int.class); 2136 2137 /** 2138 * <p>The desired mode for for the camera device's flash control.</p> 2139 * <p>This control is only effective when flash unit is available 2140 * (<code>{@link CameraCharacteristics#FLASH_INFO_AVAILABLE android.flash.info.available} == true</code>).</p> 2141 * <p>When this control is used, the {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} must be set to ON or OFF. 2142 * Otherwise, the camera device auto-exposure related flash control (ON_AUTO_FLASH, 2143 * ON_ALWAYS_FLASH, or ON_AUTO_FLASH_REDEYE) will override this control.</p> 2144 * <p>When set to OFF, the camera device will not fire flash for this capture.</p> 2145 * <p>When set to SINGLE, the camera device will fire flash regardless of the camera 2146 * device's auto-exposure routine's result. When used in still capture case, this 2147 * control should be used along with auto-exposure (AE) precapture metering sequence 2148 * ({@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}), otherwise, the image may be incorrectly exposed.</p> 2149 * <p>When set to TORCH, the flash will be on continuously. This mode can be used 2150 * for use cases such as preview, auto-focus assist, still capture, or video recording.</p> 2151 * <p>The flash status will be reported by {@link CaptureResult#FLASH_STATE android.flash.state} in the capture result metadata.</p> 2152 * <p><b>Possible values:</b> 2153 * <ul> 2154 * <li>{@link #FLASH_MODE_OFF OFF}</li> 2155 * <li>{@link #FLASH_MODE_SINGLE SINGLE}</li> 2156 * <li>{@link #FLASH_MODE_TORCH TORCH}</li> 2157 * </ul></p> 2158 * <p>This key is available on all devices.</p> 2159 * 2160 * @see CaptureRequest#CONTROL_AE_MODE 2161 * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER 2162 * @see CameraCharacteristics#FLASH_INFO_AVAILABLE 2163 * @see CaptureResult#FLASH_STATE 2164 * @see #FLASH_MODE_OFF 2165 * @see #FLASH_MODE_SINGLE 2166 * @see #FLASH_MODE_TORCH 2167 */ 2168 @PublicKey 2169 public static final Key<Integer> FLASH_MODE = 2170 new Key<Integer>("android.flash.mode", int.class); 2171 2172 /** 2173 * <p>Current state of the flash 2174 * unit.</p> 2175 * <p>When the camera device doesn't have flash unit 2176 * (i.e. <code>{@link CameraCharacteristics#FLASH_INFO_AVAILABLE android.flash.info.available} == false</code>), this state will always be UNAVAILABLE. 2177 * Other states indicate the current flash status.</p> 2178 * <p>In certain conditions, this will be available on LEGACY devices:</p> 2179 * <ul> 2180 * <li>Flash-less cameras always return UNAVAILABLE.</li> 2181 * <li>Using {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} <code>==</code> ON_ALWAYS_FLASH 2182 * will always return FIRED.</li> 2183 * <li>Using {@link CaptureRequest#FLASH_MODE android.flash.mode} <code>==</code> TORCH 2184 * will always return FIRED.</li> 2185 * </ul> 2186 * <p>In all other conditions the state will not be available on 2187 * LEGACY devices (i.e. it will be <code>null</code>).</p> 2188 * <p><b>Possible values:</b> 2189 * <ul> 2190 * <li>{@link #FLASH_STATE_UNAVAILABLE UNAVAILABLE}</li> 2191 * <li>{@link #FLASH_STATE_CHARGING CHARGING}</li> 2192 * <li>{@link #FLASH_STATE_READY READY}</li> 2193 * <li>{@link #FLASH_STATE_FIRED FIRED}</li> 2194 * <li>{@link #FLASH_STATE_PARTIAL PARTIAL}</li> 2195 * </ul></p> 2196 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2197 * <p><b>Limited capability</b> - 2198 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 2199 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2200 * 2201 * @see CaptureRequest#CONTROL_AE_MODE 2202 * @see CameraCharacteristics#FLASH_INFO_AVAILABLE 2203 * @see CaptureRequest#FLASH_MODE 2204 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2205 * @see #FLASH_STATE_UNAVAILABLE 2206 * @see #FLASH_STATE_CHARGING 2207 * @see #FLASH_STATE_READY 2208 * @see #FLASH_STATE_FIRED 2209 * @see #FLASH_STATE_PARTIAL 2210 */ 2211 @PublicKey 2212 public static final Key<Integer> FLASH_STATE = 2213 new Key<Integer>("android.flash.state", int.class); 2214 2215 /** 2216 * <p>Operational mode for hot pixel correction.</p> 2217 * <p>Hotpixel correction interpolates out, or otherwise removes, pixels 2218 * that do not accurately measure the incoming light (i.e. pixels that 2219 * are stuck at an arbitrary value or are oversensitive).</p> 2220 * <p><b>Possible values:</b> 2221 * <ul> 2222 * <li>{@link #HOT_PIXEL_MODE_OFF OFF}</li> 2223 * <li>{@link #HOT_PIXEL_MODE_FAST FAST}</li> 2224 * <li>{@link #HOT_PIXEL_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 2225 * </ul></p> 2226 * <p><b>Available values for this device:</b><br> 2227 * {@link CameraCharacteristics#HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES android.hotPixel.availableHotPixelModes}</p> 2228 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2229 * 2230 * @see CameraCharacteristics#HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES 2231 * @see #HOT_PIXEL_MODE_OFF 2232 * @see #HOT_PIXEL_MODE_FAST 2233 * @see #HOT_PIXEL_MODE_HIGH_QUALITY 2234 */ 2235 @PublicKey 2236 public static final Key<Integer> HOT_PIXEL_MODE = 2237 new Key<Integer>("android.hotPixel.mode", int.class); 2238 2239 /** 2240 * <p>A location object to use when generating image GPS metadata.</p> 2241 * <p>Setting a location object in a request will include the GPS coordinates of the location 2242 * into any JPEG images captured based on the request. These coordinates can then be 2243 * viewed by anyone who receives the JPEG image.</p> 2244 * <p>This key is available on all devices.</p> 2245 */ 2246 @PublicKey 2247 @SyntheticKey 2248 public static final Key<android.location.Location> JPEG_GPS_LOCATION = 2249 new Key<android.location.Location>("android.jpeg.gpsLocation", android.location.Location.class); 2250 2251 /** 2252 * <p>GPS coordinates to include in output JPEG 2253 * EXIF.</p> 2254 * <p><b>Range of valid values:</b><br> 2255 * (-180 - 180], [-90,90], [-inf, inf]</p> 2256 * <p>This key is available on all devices.</p> 2257 * @hide 2258 */ 2259 public static final Key<double[]> JPEG_GPS_COORDINATES = 2260 new Key<double[]>("android.jpeg.gpsCoordinates", double[].class); 2261 2262 /** 2263 * <p>32 characters describing GPS algorithm to 2264 * include in EXIF.</p> 2265 * <p><b>Units</b>: UTF-8 null-terminated string</p> 2266 * <p>This key is available on all devices.</p> 2267 * @hide 2268 */ 2269 public static final Key<String> JPEG_GPS_PROCESSING_METHOD = 2270 new Key<String>("android.jpeg.gpsProcessingMethod", String.class); 2271 2272 /** 2273 * <p>Time GPS fix was made to include in 2274 * EXIF.</p> 2275 * <p><b>Units</b>: UTC in seconds since January 1, 1970</p> 2276 * <p>This key is available on all devices.</p> 2277 * @hide 2278 */ 2279 public static final Key<Long> JPEG_GPS_TIMESTAMP = 2280 new Key<Long>("android.jpeg.gpsTimestamp", long.class); 2281 2282 /** 2283 * <p>The orientation for a JPEG image.</p> 2284 * <p>The clockwise rotation angle in degrees, relative to the orientation 2285 * to the camera, that the JPEG picture needs to be rotated by, to be viewed 2286 * upright.</p> 2287 * <p>Camera devices may either encode this value into the JPEG EXIF header, or 2288 * rotate the image data to match this orientation. When the image data is rotated, 2289 * the thumbnail data will also be rotated.</p> 2290 * <p>Note that this orientation is relative to the orientation of the camera sensor, given 2291 * by {@link CameraCharacteristics#SENSOR_ORIENTATION android.sensor.orientation}.</p> 2292 * <p>To translate from the device orientation given by the Android sensor APIs, the following 2293 * sample code may be used:</p> 2294 * <pre><code>private int getJpegOrientation(CameraCharacteristics c, int deviceOrientation) { 2295 * if (deviceOrientation == android.view.OrientationEventListener.ORIENTATION_UNKNOWN) return 0; 2296 * int sensorOrientation = c.get(CameraCharacteristics.SENSOR_ORIENTATION); 2297 * 2298 * // Round device orientation to a multiple of 90 2299 * deviceOrientation = (deviceOrientation + 45) / 90 * 90; 2300 * 2301 * // Reverse device orientation for front-facing cameras 2302 * boolean facingFront = c.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT; 2303 * if (facingFront) deviceOrientation = -deviceOrientation; 2304 * 2305 * // Calculate desired JPEG orientation relative to camera orientation to make 2306 * // the image upright relative to the device orientation 2307 * int jpegOrientation = (sensorOrientation + deviceOrientation + 360) % 360; 2308 * 2309 * return jpegOrientation; 2310 * } 2311 * </code></pre> 2312 * <p><b>Units</b>: Degrees in multiples of 90</p> 2313 * <p><b>Range of valid values:</b><br> 2314 * 0, 90, 180, 270</p> 2315 * <p>This key is available on all devices.</p> 2316 * 2317 * @see CameraCharacteristics#SENSOR_ORIENTATION 2318 */ 2319 @PublicKey 2320 public static final Key<Integer> JPEG_ORIENTATION = 2321 new Key<Integer>("android.jpeg.orientation", int.class); 2322 2323 /** 2324 * <p>Compression quality of the final JPEG 2325 * image.</p> 2326 * <p>85-95 is typical usage range.</p> 2327 * <p><b>Range of valid values:</b><br> 2328 * 1-100; larger is higher quality</p> 2329 * <p>This key is available on all devices.</p> 2330 */ 2331 @PublicKey 2332 public static final Key<Byte> JPEG_QUALITY = 2333 new Key<Byte>("android.jpeg.quality", byte.class); 2334 2335 /** 2336 * <p>Compression quality of JPEG 2337 * thumbnail.</p> 2338 * <p><b>Range of valid values:</b><br> 2339 * 1-100; larger is higher quality</p> 2340 * <p>This key is available on all devices.</p> 2341 */ 2342 @PublicKey 2343 public static final Key<Byte> JPEG_THUMBNAIL_QUALITY = 2344 new Key<Byte>("android.jpeg.thumbnailQuality", byte.class); 2345 2346 /** 2347 * <p>Resolution of embedded JPEG thumbnail.</p> 2348 * <p>When set to (0, 0) value, the JPEG EXIF will not contain thumbnail, 2349 * but the captured JPEG will still be a valid image.</p> 2350 * <p>For best results, when issuing a request for a JPEG image, the thumbnail size selected 2351 * should have the same aspect ratio as the main JPEG output.</p> 2352 * <p>If the thumbnail image aspect ratio differs from the JPEG primary image aspect 2353 * ratio, the camera device creates the thumbnail by cropping it from the primary image. 2354 * For example, if the primary image has 4:3 aspect ratio, the thumbnail image has 2355 * 16:9 aspect ratio, the primary image will be cropped vertically (letterbox) to 2356 * generate the thumbnail image. The thumbnail image will always have a smaller Field 2357 * Of View (FOV) than the primary image when aspect ratios differ.</p> 2358 * <p>When an {@link CaptureRequest#JPEG_ORIENTATION android.jpeg.orientation} of non-zero degree is requested, 2359 * the camera device will handle thumbnail rotation in one of the following ways:</p> 2360 * <ul> 2361 * <li>Set the {@link android.media.ExifInterface#TAG_ORIENTATION EXIF orientation flag} 2362 * and keep jpeg and thumbnail image data unrotated.</li> 2363 * <li>Rotate the jpeg and thumbnail image data and not set 2364 * {@link android.media.ExifInterface#TAG_ORIENTATION EXIF orientation flag}. In this 2365 * case, LIMITED or FULL hardware level devices will report rotated thumnail size in 2366 * capture result, so the width and height will be interchanged if 90 or 270 degree 2367 * orientation is requested. LEGACY device will always report unrotated thumbnail 2368 * size.</li> 2369 * </ul> 2370 * <p><b>Range of valid values:</b><br> 2371 * {@link CameraCharacteristics#JPEG_AVAILABLE_THUMBNAIL_SIZES android.jpeg.availableThumbnailSizes}</p> 2372 * <p>This key is available on all devices.</p> 2373 * 2374 * @see CameraCharacteristics#JPEG_AVAILABLE_THUMBNAIL_SIZES 2375 * @see CaptureRequest#JPEG_ORIENTATION 2376 */ 2377 @PublicKey 2378 public static final Key<android.util.Size> JPEG_THUMBNAIL_SIZE = 2379 new Key<android.util.Size>("android.jpeg.thumbnailSize", android.util.Size.class); 2380 2381 /** 2382 * <p>The desired lens aperture size, as a ratio of lens focal length to the 2383 * effective aperture diameter.</p> 2384 * <p>Setting this value is only supported on the camera devices that have a variable 2385 * aperture lens.</p> 2386 * <p>When this is supported and {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is OFF, 2387 * this can be set along with {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}, 2388 * {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}, and {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration} 2389 * to achieve manual exposure control.</p> 2390 * <p>The requested aperture value may take several frames to reach the 2391 * requested value; the camera device will report the current (intermediate) 2392 * aperture size in capture result metadata while the aperture is changing. 2393 * While the aperture is still changing, {@link CaptureResult#LENS_STATE android.lens.state} will be set to MOVING.</p> 2394 * <p>When this is supported and {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is one of 2395 * the ON modes, this will be overridden by the camera device 2396 * auto-exposure algorithm, the overridden values are then provided 2397 * back to the user in the corresponding result.</p> 2398 * <p><b>Units</b>: The f-number (f/N)</p> 2399 * <p><b>Range of valid values:</b><br> 2400 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_APERTURES android.lens.info.availableApertures}</p> 2401 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2402 * <p><b>Full capability</b> - 2403 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2404 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2405 * 2406 * @see CaptureRequest#CONTROL_AE_MODE 2407 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2408 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_APERTURES 2409 * @see CaptureResult#LENS_STATE 2410 * @see CaptureRequest#SENSOR_EXPOSURE_TIME 2411 * @see CaptureRequest#SENSOR_FRAME_DURATION 2412 * @see CaptureRequest#SENSOR_SENSITIVITY 2413 */ 2414 @PublicKey 2415 public static final Key<Float> LENS_APERTURE = 2416 new Key<Float>("android.lens.aperture", float.class); 2417 2418 /** 2419 * <p>The desired setting for the lens neutral density filter(s).</p> 2420 * <p>This control will not be supported on most camera devices.</p> 2421 * <p>Lens filters are typically used to lower the amount of light the 2422 * sensor is exposed to (measured in steps of EV). As used here, an EV 2423 * step is the standard logarithmic representation, which are 2424 * non-negative, and inversely proportional to the amount of light 2425 * hitting the sensor. For example, setting this to 0 would result 2426 * in no reduction of the incoming light, and setting this to 2 would 2427 * mean that the filter is set to reduce incoming light by two stops 2428 * (allowing 1/4 of the prior amount of light to the sensor).</p> 2429 * <p>It may take several frames before the lens filter density changes 2430 * to the requested value. While the filter density is still changing, 2431 * {@link CaptureResult#LENS_STATE android.lens.state} will be set to MOVING.</p> 2432 * <p><b>Units</b>: Exposure Value (EV)</p> 2433 * <p><b>Range of valid values:</b><br> 2434 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_FILTER_DENSITIES android.lens.info.availableFilterDensities}</p> 2435 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2436 * <p><b>Full capability</b> - 2437 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2438 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2439 * 2440 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2441 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_FILTER_DENSITIES 2442 * @see CaptureResult#LENS_STATE 2443 */ 2444 @PublicKey 2445 public static final Key<Float> LENS_FILTER_DENSITY = 2446 new Key<Float>("android.lens.filterDensity", float.class); 2447 2448 /** 2449 * <p>The desired lens focal length; used for optical zoom.</p> 2450 * <p>This setting controls the physical focal length of the camera 2451 * device's lens. Changing the focal length changes the field of 2452 * view of the camera device, and is usually used for optical zoom.</p> 2453 * <p>Like {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance} and {@link CaptureRequest#LENS_APERTURE android.lens.aperture}, this 2454 * setting won't be applied instantaneously, and it may take several 2455 * frames before the lens can change to the requested focal length. 2456 * While the focal length is still changing, {@link CaptureResult#LENS_STATE android.lens.state} will 2457 * be set to MOVING.</p> 2458 * <p>Optical zoom will not be supported on most devices.</p> 2459 * <p><b>Units</b>: Millimeters</p> 2460 * <p><b>Range of valid values:</b><br> 2461 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_FOCAL_LENGTHS android.lens.info.availableFocalLengths}</p> 2462 * <p>This key is available on all devices.</p> 2463 * 2464 * @see CaptureRequest#LENS_APERTURE 2465 * @see CaptureRequest#LENS_FOCUS_DISTANCE 2466 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_FOCAL_LENGTHS 2467 * @see CaptureResult#LENS_STATE 2468 */ 2469 @PublicKey 2470 public static final Key<Float> LENS_FOCAL_LENGTH = 2471 new Key<Float>("android.lens.focalLength", float.class); 2472 2473 /** 2474 * <p>Desired distance to plane of sharpest focus, 2475 * measured from frontmost surface of the lens.</p> 2476 * <p>Should be zero for fixed-focus cameras</p> 2477 * <p><b>Units</b>: See {@link CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION android.lens.info.focusDistanceCalibration} for details</p> 2478 * <p><b>Range of valid values:</b><br> 2479 * >= 0</p> 2480 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2481 * <p><b>Full capability</b> - 2482 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2483 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2484 * 2485 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2486 * @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION 2487 */ 2488 @PublicKey 2489 public static final Key<Float> LENS_FOCUS_DISTANCE = 2490 new Key<Float>("android.lens.focusDistance", float.class); 2491 2492 /** 2493 * <p>The range of scene distances that are in 2494 * sharp focus (depth of field).</p> 2495 * <p>If variable focus not supported, can still report 2496 * fixed depth of field range</p> 2497 * <p><b>Units</b>: A pair of focus distances in diopters: (near, 2498 * far); see {@link CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION android.lens.info.focusDistanceCalibration} for details.</p> 2499 * <p><b>Range of valid values:</b><br> 2500 * >=0</p> 2501 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2502 * <p><b>Limited capability</b> - 2503 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 2504 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2505 * 2506 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2507 * @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION 2508 */ 2509 @PublicKey 2510 public static final Key<android.util.Pair<Float,Float>> LENS_FOCUS_RANGE = 2511 new Key<android.util.Pair<Float,Float>>("android.lens.focusRange", new TypeReference<android.util.Pair<Float,Float>>() {{ }}); 2512 2513 /** 2514 * <p>Sets whether the camera device uses optical image stabilization (OIS) 2515 * when capturing images.</p> 2516 * <p>OIS is used to compensate for motion blur due to small 2517 * movements of the camera during capture. Unlike digital image 2518 * stabilization ({@link CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE android.control.videoStabilizationMode}), OIS 2519 * makes use of mechanical elements to stabilize the camera 2520 * sensor, and thus allows for longer exposure times before 2521 * camera shake becomes apparent.</p> 2522 * <p>Switching between different optical stabilization modes may take several 2523 * frames to initialize, the camera device will report the current mode in 2524 * capture result metadata. For example, When "ON" mode is requested, the 2525 * optical stabilization modes in the first several capture results may still 2526 * be "OFF", and it will become "ON" when the initialization is done.</p> 2527 * <p>If a camera device supports both OIS and digital image stabilization 2528 * ({@link CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE android.control.videoStabilizationMode}), turning both modes on may produce undesirable 2529 * interaction, so it is recommended not to enable both at the same time.</p> 2530 * <p>Not all devices will support OIS; see 2531 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION android.lens.info.availableOpticalStabilization} for 2532 * available controls.</p> 2533 * <p><b>Possible values:</b> 2534 * <ul> 2535 * <li>{@link #LENS_OPTICAL_STABILIZATION_MODE_OFF OFF}</li> 2536 * <li>{@link #LENS_OPTICAL_STABILIZATION_MODE_ON ON}</li> 2537 * </ul></p> 2538 * <p><b>Available values for this device:</b><br> 2539 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION android.lens.info.availableOpticalStabilization}</p> 2540 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2541 * <p><b>Limited capability</b> - 2542 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 2543 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2544 * 2545 * @see CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE 2546 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2547 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION 2548 * @see #LENS_OPTICAL_STABILIZATION_MODE_OFF 2549 * @see #LENS_OPTICAL_STABILIZATION_MODE_ON 2550 */ 2551 @PublicKey 2552 public static final Key<Integer> LENS_OPTICAL_STABILIZATION_MODE = 2553 new Key<Integer>("android.lens.opticalStabilizationMode", int.class); 2554 2555 /** 2556 * <p>Current lens status.</p> 2557 * <p>For lens parameters {@link CaptureRequest#LENS_FOCAL_LENGTH android.lens.focalLength}, {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance}, 2558 * {@link CaptureRequest#LENS_FILTER_DENSITY android.lens.filterDensity} and {@link CaptureRequest#LENS_APERTURE android.lens.aperture}, when changes are requested, 2559 * they may take several frames to reach the requested values. This state indicates 2560 * the current status of the lens parameters.</p> 2561 * <p>When the state is STATIONARY, the lens parameters are not changing. This could be 2562 * either because the parameters are all fixed, or because the lens has had enough 2563 * time to reach the most recently-requested values. 2564 * If all these lens parameters are not changable for a camera device, as listed below:</p> 2565 * <ul> 2566 * <li>Fixed focus (<code>{@link CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance} == 0</code>), which means 2567 * {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance} parameter will always be 0.</li> 2568 * <li>Fixed focal length ({@link CameraCharacteristics#LENS_INFO_AVAILABLE_FOCAL_LENGTHS android.lens.info.availableFocalLengths} contains single value), 2569 * which means the optical zoom is not supported.</li> 2570 * <li>No ND filter ({@link CameraCharacteristics#LENS_INFO_AVAILABLE_FILTER_DENSITIES android.lens.info.availableFilterDensities} contains only 0).</li> 2571 * <li>Fixed aperture ({@link CameraCharacteristics#LENS_INFO_AVAILABLE_APERTURES android.lens.info.availableApertures} contains single value).</li> 2572 * </ul> 2573 * <p>Then this state will always be STATIONARY.</p> 2574 * <p>When the state is MOVING, it indicates that at least one of the lens parameters 2575 * is changing.</p> 2576 * <p><b>Possible values:</b> 2577 * <ul> 2578 * <li>{@link #LENS_STATE_STATIONARY STATIONARY}</li> 2579 * <li>{@link #LENS_STATE_MOVING MOVING}</li> 2580 * </ul></p> 2581 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2582 * <p><b>Limited capability</b> - 2583 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 2584 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2585 * 2586 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2587 * @see CaptureRequest#LENS_APERTURE 2588 * @see CaptureRequest#LENS_FILTER_DENSITY 2589 * @see CaptureRequest#LENS_FOCAL_LENGTH 2590 * @see CaptureRequest#LENS_FOCUS_DISTANCE 2591 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_APERTURES 2592 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_FILTER_DENSITIES 2593 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_FOCAL_LENGTHS 2594 * @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE 2595 * @see #LENS_STATE_STATIONARY 2596 * @see #LENS_STATE_MOVING 2597 */ 2598 @PublicKey 2599 public static final Key<Integer> LENS_STATE = 2600 new Key<Integer>("android.lens.state", int.class); 2601 2602 /** 2603 * <p>The orientation of the camera relative to the sensor 2604 * coordinate system.</p> 2605 * <p>The four coefficients that describe the quarternion 2606 * rotation from the Android sensor coordinate system to a 2607 * camera-aligned coordinate system where the X-axis is 2608 * aligned with the long side of the image sensor, the Y-axis 2609 * is aligned with the short side of the image sensor, and 2610 * the Z-axis is aligned with the optical axis of the sensor.</p> 2611 * <p>To convert from the quarternion coefficients <code>(x,y,z,w)</code> 2612 * to the axis of rotation <code>(a_x, a_y, a_z)</code> and rotation 2613 * amount <code>theta</code>, the following formulas can be used:</p> 2614 * <pre><code> theta = 2 * acos(w) 2615 * a_x = x / sin(theta/2) 2616 * a_y = y / sin(theta/2) 2617 * a_z = z / sin(theta/2) 2618 * </code></pre> 2619 * <p>To create a 3x3 rotation matrix that applies the rotation 2620 * defined by this quarternion, the following matrix can be 2621 * used:</p> 2622 * <pre><code>R = [ 1 - 2y^2 - 2z^2, 2xy - 2zw, 2xz + 2yw, 2623 * 2xy + 2zw, 1 - 2x^2 - 2z^2, 2yz - 2xw, 2624 * 2xz - 2yw, 2yz + 2xw, 1 - 2x^2 - 2y^2 ] 2625 * </code></pre> 2626 * <p>This matrix can then be used to apply the rotation to a 2627 * column vector point with</p> 2628 * <p><code>p' = Rp</code></p> 2629 * <p>where <code>p</code> is in the device sensor coordinate system, and 2630 * <code>p'</code> is in the camera-oriented coordinate system.</p> 2631 * <p><b>Units</b>: 2632 * Quarternion coefficients</p> 2633 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2634 */ 2635 @PublicKey 2636 public static final Key<float[]> LENS_POSE_ROTATION = 2637 new Key<float[]>("android.lens.poseRotation", float[].class); 2638 2639 /** 2640 * <p>Position of the camera optical center.</p> 2641 * <p>The position of the camera device's lens optical center, 2642 * as a three-dimensional vector <code>(x,y,z)</code>, relative to the 2643 * optical center of the largest camera device facing in the 2644 * same direction as this camera, in the {@link android.hardware.SensorEvent Android sensor coordinate 2645 * axes}. Note that only the axis definitions are shared with 2646 * the sensor coordinate system, but not the origin.</p> 2647 * <p>If this device is the largest or only camera device with a 2648 * given facing, then this position will be <code>(0, 0, 0)</code>; a 2649 * camera device with a lens optical center located 3 cm from 2650 * the main sensor along the +X axis (to the right from the 2651 * user's perspective) will report <code>(0.03, 0, 0)</code>.</p> 2652 * <p>To transform a pixel coordinates between two cameras 2653 * facing the same direction, first the source camera 2654 * android.lens.radialDistortion must be corrected for. Then 2655 * the source camera android.lens.intrinsicCalibration needs 2656 * to be applied, followed by the {@link CameraCharacteristics#LENS_POSE_ROTATION android.lens.poseRotation} 2657 * of the source camera, the translation of the source camera 2658 * relative to the destination camera, the 2659 * {@link CameraCharacteristics#LENS_POSE_ROTATION android.lens.poseRotation} of the destination camera, and 2660 * finally the inverse of android.lens.intrinsicCalibration 2661 * of the destination camera. This obtains a 2662 * radial-distortion-free coordinate in the destination 2663 * camera pixel coordinates.</p> 2664 * <p>To compare this against a real image from the destination 2665 * camera, the destination camera image then needs to be 2666 * corrected for radial distortion before comparison or 2667 * sampling.</p> 2668 * <p><b>Units</b>: Meters</p> 2669 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2670 * 2671 * @see CameraCharacteristics#LENS_POSE_ROTATION 2672 */ 2673 @PublicKey 2674 public static final Key<float[]> LENS_POSE_TRANSLATION = 2675 new Key<float[]>("android.lens.poseTranslation", float[].class); 2676 2677 /** 2678 * <p>The parameters for this camera device's intrinsic 2679 * calibration.</p> 2680 * <p>The five calibration parameters that describe the 2681 * transform from camera-centric 3D coordinates to sensor 2682 * pixel coordinates:</p> 2683 * <pre><code>[f_x, f_y, c_x, c_y, s] 2684 * </code></pre> 2685 * <p>Where <code>f_x</code> and <code>f_y</code> are the horizontal and vertical 2686 * focal lengths, <code>[c_x, c_y]</code> is the position of the optical 2687 * axis, and <code>s</code> is a skew parameter for the sensor plane not 2688 * being aligned with the lens plane.</p> 2689 * <p>These are typically used within a transformation matrix K:</p> 2690 * <pre><code>K = [ f_x, s, c_x, 2691 * 0, f_y, c_y, 2692 * 0 0, 1 ] 2693 * </code></pre> 2694 * <p>which can then be combined with the camera pose rotation 2695 * <code>R</code> and translation <code>t</code> ({@link CameraCharacteristics#LENS_POSE_ROTATION android.lens.poseRotation} and 2696 * {@link CameraCharacteristics#LENS_POSE_TRANSLATION android.lens.poseTranslation}, respective) to calculate the 2697 * complete transform from world coordinates to pixel 2698 * coordinates:</p> 2699 * <pre><code>P = [ K 0 * [ R t 2700 * 0 1 ] 0 1 ] 2701 * </code></pre> 2702 * <p>and with <code>p_w</code> being a point in the world coordinate system 2703 * and <code>p_s</code> being a point in the camera active pixel array 2704 * coordinate system, and with the mapping including the 2705 * homogeneous division by z:</p> 2706 * <pre><code> p_h = (x_h, y_h, z_h) = P p_w 2707 * p_s = p_h / z_h 2708 * </code></pre> 2709 * <p>so <code>[x_s, y_s]</code> is the pixel coordinates of the world 2710 * point, <code>z_s = 1</code>, and <code>w_s</code> is a measurement of disparity 2711 * (depth) in pixel coordinates.</p> 2712 * <p>Note that the coordinate system for this transform is the 2713 * {@link CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize} system, 2714 * where <code>(0,0)</code> is the top-left of the 2715 * preCorrectionActiveArraySize rectangle. Once the pose and 2716 * intrinsic calibration transforms have been applied to a 2717 * world point, then the android.lens.radialDistortion 2718 * transform needs to be applied, and the result adjusted to 2719 * be in the {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize} coordinate 2720 * system (where <code>(0, 0)</code> is the top-left of the 2721 * activeArraySize rectangle), to determine the final pixel 2722 * coordinate of the world point for processed (non-RAW) 2723 * output buffers.</p> 2724 * <p><b>Units</b>: 2725 * Pixels in the 2726 * {@link CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize} 2727 * coordinate system.</p> 2728 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2729 * 2730 * @see CameraCharacteristics#LENS_POSE_ROTATION 2731 * @see CameraCharacteristics#LENS_POSE_TRANSLATION 2732 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 2733 * @see CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE 2734 */ 2735 @PublicKey 2736 public static final Key<float[]> LENS_INTRINSIC_CALIBRATION = 2737 new Key<float[]>("android.lens.intrinsicCalibration", float[].class); 2738 2739 /** 2740 * <p>The correction coefficients to correct for this camera device's 2741 * radial and tangential lens distortion.</p> 2742 * <p>Four radial distortion coefficients <code>[kappa_0, kappa_1, kappa_2, 2743 * kappa_3]</code> and two tangential distortion coefficients 2744 * <code>[kappa_4, kappa_5]</code> that can be used to correct the 2745 * lens's geometric distortion with the mapping equations:</p> 2746 * <pre><code> x_c = x_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) + 2747 * kappa_4 * (2 * x_i * y_i) + kappa_5 * ( r^2 + 2 * x_i^2 ) 2748 * y_c = y_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) + 2749 * kappa_5 * (2 * x_i * y_i) + kappa_4 * ( r^2 + 2 * y_i^2 ) 2750 * </code></pre> 2751 * <p>Here, <code>[x_c, y_c]</code> are the coordinates to sample in the 2752 * input image that correspond to the pixel values in the 2753 * corrected image at the coordinate <code>[x_i, y_i]</code>:</p> 2754 * <pre><code> correctedImage(x_i, y_i) = sample_at(x_c, y_c, inputImage) 2755 * </code></pre> 2756 * <p>The pixel coordinates are defined in a normalized 2757 * coordinate system related to the 2758 * android.lens.intrinsicCalibration calibration fields. 2759 * Both <code>[x_i, y_i]</code> and <code>[x_c, y_c]</code> have <code>(0,0)</code> at the 2760 * lens optical center <code>[c_x, c_y]</code>. The maximum magnitudes 2761 * of both x and y coordinates are normalized to be 1 at the 2762 * edge further from the optical center, so the range 2763 * for both dimensions is <code>-1 <= x <= 1</code>.</p> 2764 * <p>Finally, <code>r</code> represents the radial distance from the 2765 * optical center, <code>r^2 = x_i^2 + y_i^2</code>, and its magnitude 2766 * is therefore no larger than <code>|r| <= sqrt(2)</code>.</p> 2767 * <p>The distortion model used is the Brown-Conrady model.</p> 2768 * <p><b>Units</b>: 2769 * Unitless coefficients.</p> 2770 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2771 */ 2772 @PublicKey 2773 public static final Key<float[]> LENS_RADIAL_DISTORTION = 2774 new Key<float[]>("android.lens.radialDistortion", float[].class); 2775 2776 /** 2777 * <p>Mode of operation for the noise reduction algorithm.</p> 2778 * <p>The noise reduction algorithm attempts to improve image quality by removing 2779 * excessive noise added by the capture process, especially in dark conditions.</p> 2780 * <p>OFF means no noise reduction will be applied by the camera device, for both raw and 2781 * YUV domain.</p> 2782 * <p>MINIMAL means that only sensor raw domain basic noise reduction is enabled ,to remove 2783 * demosaicing or other processing artifacts. For YUV_REPROCESSING, MINIMAL is same as OFF. 2784 * This mode is optional, may not be support by all devices. The application should check 2785 * {@link CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES android.noiseReduction.availableNoiseReductionModes} before using it.</p> 2786 * <p>FAST/HIGH_QUALITY both mean camera device determined noise filtering 2787 * will be applied. HIGH_QUALITY mode indicates that the camera device 2788 * will use the highest-quality noise filtering algorithms, 2789 * even if it slows down capture rate. FAST means the camera device will not 2790 * slow down capture rate when applying noise filtering. FAST may be the same as MINIMAL if 2791 * MINIMAL is listed, or the same as OFF if any noise filtering will slow down capture rate. 2792 * Every output stream will have a similar amount of enhancement applied.</p> 2793 * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular 2794 * buffer of high-resolution images during preview and reprocess image(s) from that buffer 2795 * into a final capture when triggered by the user. In this mode, the camera device applies 2796 * noise reduction to low-resolution streams (below maximum recording resolution) to maximize 2797 * preview quality, but does not apply noise reduction to high-resolution streams, since 2798 * those will be reprocessed later if necessary.</p> 2799 * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera device 2800 * will apply FAST/HIGH_QUALITY YUV domain noise reduction, respectively. The camera device 2801 * may adjust the noise reduction parameters for best image quality based on the 2802 * {@link CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR android.reprocess.effectiveExposureFactor} if it is set.</p> 2803 * <p><b>Possible values:</b> 2804 * <ul> 2805 * <li>{@link #NOISE_REDUCTION_MODE_OFF OFF}</li> 2806 * <li>{@link #NOISE_REDUCTION_MODE_FAST FAST}</li> 2807 * <li>{@link #NOISE_REDUCTION_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 2808 * <li>{@link #NOISE_REDUCTION_MODE_MINIMAL MINIMAL}</li> 2809 * <li>{@link #NOISE_REDUCTION_MODE_ZERO_SHUTTER_LAG ZERO_SHUTTER_LAG}</li> 2810 * </ul></p> 2811 * <p><b>Available values for this device:</b><br> 2812 * {@link CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES android.noiseReduction.availableNoiseReductionModes}</p> 2813 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2814 * <p><b>Full capability</b> - 2815 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2816 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2817 * 2818 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2819 * @see CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES 2820 * @see CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR 2821 * @see #NOISE_REDUCTION_MODE_OFF 2822 * @see #NOISE_REDUCTION_MODE_FAST 2823 * @see #NOISE_REDUCTION_MODE_HIGH_QUALITY 2824 * @see #NOISE_REDUCTION_MODE_MINIMAL 2825 * @see #NOISE_REDUCTION_MODE_ZERO_SHUTTER_LAG 2826 */ 2827 @PublicKey 2828 public static final Key<Integer> NOISE_REDUCTION_MODE = 2829 new Key<Integer>("android.noiseReduction.mode", int.class); 2830 2831 /** 2832 * <p>Whether a result given to the framework is the 2833 * final one for the capture, or only a partial that contains a 2834 * subset of the full set of dynamic metadata 2835 * values.</p> 2836 * <p>The entries in the result metadata buffers for a 2837 * single capture may not overlap, except for this entry. The 2838 * FINAL buffers must retain FIFO ordering relative to the 2839 * requests that generate them, so the FINAL buffer for frame 3 must 2840 * always be sent to the framework after the FINAL buffer for frame 2, and 2841 * before the FINAL buffer for frame 4. PARTIAL buffers may be returned 2842 * in any order relative to other frames, but all PARTIAL buffers for a given 2843 * capture must arrive before the FINAL buffer for that capture. This entry may 2844 * only be used by the camera device if quirks.usePartialResult is set to 1.</p> 2845 * <p><b>Range of valid values:</b><br> 2846 * Optional. Default value is FINAL.</p> 2847 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2848 * @deprecated 2849 * @hide 2850 */ 2851 @Deprecated 2852 public static final Key<Boolean> QUIRKS_PARTIAL_RESULT = 2853 new Key<Boolean>("android.quirks.partialResult", boolean.class); 2854 2855 /** 2856 * <p>A frame counter set by the framework. This value monotonically 2857 * increases with every new result (that is, each new result has a unique 2858 * frameCount value).</p> 2859 * <p>Reset on release()</p> 2860 * <p><b>Units</b>: count of frames</p> 2861 * <p><b>Range of valid values:</b><br> 2862 * > 0</p> 2863 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2864 * @deprecated 2865 * @hide 2866 */ 2867 @Deprecated 2868 public static final Key<Integer> REQUEST_FRAME_COUNT = 2869 new Key<Integer>("android.request.frameCount", int.class); 2870 2871 /** 2872 * <p>An application-specified ID for the current 2873 * request. Must be maintained unchanged in output 2874 * frame</p> 2875 * <p><b>Units</b>: arbitrary integer assigned by application</p> 2876 * <p><b>Range of valid values:</b><br> 2877 * Any int</p> 2878 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2879 * @hide 2880 */ 2881 public static final Key<Integer> REQUEST_ID = 2882 new Key<Integer>("android.request.id", int.class); 2883 2884 /** 2885 * <p>Specifies the number of pipeline stages the frame went 2886 * through from when it was exposed to when the final completed result 2887 * was available to the framework.</p> 2888 * <p>Depending on what settings are used in the request, and 2889 * what streams are configured, the data may undergo less processing, 2890 * and some pipeline stages skipped.</p> 2891 * <p>See {@link CameraCharacteristics#REQUEST_PIPELINE_MAX_DEPTH android.request.pipelineMaxDepth} for more details.</p> 2892 * <p><b>Range of valid values:</b><br> 2893 * <= {@link CameraCharacteristics#REQUEST_PIPELINE_MAX_DEPTH android.request.pipelineMaxDepth}</p> 2894 * <p>This key is available on all devices.</p> 2895 * 2896 * @see CameraCharacteristics#REQUEST_PIPELINE_MAX_DEPTH 2897 */ 2898 @PublicKey 2899 public static final Key<Byte> REQUEST_PIPELINE_DEPTH = 2900 new Key<Byte>("android.request.pipelineDepth", byte.class); 2901 2902 /** 2903 * <p>The desired region of the sensor to read out for this capture.</p> 2904 * <p>This control can be used to implement digital zoom.</p> 2905 * <p>The crop region coordinate system is based off 2906 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}, with <code>(0, 0)</code> being the 2907 * top-left corner of the sensor active array.</p> 2908 * <p>Output streams use this rectangle to produce their output, 2909 * cropping to a smaller region if necessary to maintain the 2910 * stream's aspect ratio, then scaling the sensor input to 2911 * match the output's configured resolution.</p> 2912 * <p>The crop region is applied after the RAW to other color 2913 * space (e.g. YUV) conversion. Since raw streams 2914 * (e.g. RAW16) don't have the conversion stage, they are not 2915 * croppable. The crop region will be ignored by raw streams.</p> 2916 * <p>For non-raw streams, any additional per-stream cropping will 2917 * be done to maximize the final pixel area of the stream.</p> 2918 * <p>For example, if the crop region is set to a 4:3 aspect 2919 * ratio, then 4:3 streams will use the exact crop 2920 * region. 16:9 streams will further crop vertically 2921 * (letterbox).</p> 2922 * <p>Conversely, if the crop region is set to a 16:9, then 4:3 2923 * outputs will crop horizontally (pillarbox), and 16:9 2924 * streams will match exactly. These additional crops will 2925 * be centered within the crop region.</p> 2926 * <p>The width and height of the crop region cannot 2927 * be set to be smaller than 2928 * <code>floor( activeArraySize.width / {@link CameraCharacteristics#SCALER_AVAILABLE_MAX_DIGITAL_ZOOM android.scaler.availableMaxDigitalZoom} )</code> and 2929 * <code>floor( activeArraySize.height / {@link CameraCharacteristics#SCALER_AVAILABLE_MAX_DIGITAL_ZOOM android.scaler.availableMaxDigitalZoom} )</code>, respectively.</p> 2930 * <p>The camera device may adjust the crop region to account 2931 * for rounding and other hardware requirements; the final 2932 * crop region used will be included in the output capture 2933 * result.</p> 2934 * <p><b>Units</b>: Pixel coordinates relative to 2935 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 2936 * <p>This key is available on all devices.</p> 2937 * 2938 * @see CameraCharacteristics#SCALER_AVAILABLE_MAX_DIGITAL_ZOOM 2939 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 2940 */ 2941 @PublicKey 2942 public static final Key<android.graphics.Rect> SCALER_CROP_REGION = 2943 new Key<android.graphics.Rect>("android.scaler.cropRegion", android.graphics.Rect.class); 2944 2945 /** 2946 * <p>Duration each pixel is exposed to 2947 * light.</p> 2948 * <p>If the sensor can't expose this exact duration, it will shorten the 2949 * duration exposed to the nearest possible value (rather than expose longer). 2950 * The final exposure time used will be available in the output capture result.</p> 2951 * <p>This control is only effective if {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} or {@link CaptureRequest#CONTROL_MODE android.control.mode} is set to 2952 * OFF; otherwise the auto-exposure algorithm will override this value.</p> 2953 * <p><b>Units</b>: Nanoseconds</p> 2954 * <p><b>Range of valid values:</b><br> 2955 * {@link CameraCharacteristics#SENSOR_INFO_EXPOSURE_TIME_RANGE android.sensor.info.exposureTimeRange}</p> 2956 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2957 * <p><b>Full capability</b> - 2958 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2959 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2960 * 2961 * @see CaptureRequest#CONTROL_AE_MODE 2962 * @see CaptureRequest#CONTROL_MODE 2963 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2964 * @see CameraCharacteristics#SENSOR_INFO_EXPOSURE_TIME_RANGE 2965 */ 2966 @PublicKey 2967 public static final Key<Long> SENSOR_EXPOSURE_TIME = 2968 new Key<Long>("android.sensor.exposureTime", long.class); 2969 2970 /** 2971 * <p>Duration from start of frame exposure to 2972 * start of next frame exposure.</p> 2973 * <p>The maximum frame rate that can be supported by a camera subsystem is 2974 * a function of many factors:</p> 2975 * <ul> 2976 * <li>Requested resolutions of output image streams</li> 2977 * <li>Availability of binning / skipping modes on the imager</li> 2978 * <li>The bandwidth of the imager interface</li> 2979 * <li>The bandwidth of the various ISP processing blocks</li> 2980 * </ul> 2981 * <p>Since these factors can vary greatly between different ISPs and 2982 * sensors, the camera abstraction tries to represent the bandwidth 2983 * restrictions with as simple a model as possible.</p> 2984 * <p>The model presented has the following characteristics:</p> 2985 * <ul> 2986 * <li>The image sensor is always configured to output the smallest 2987 * resolution possible given the application's requested output stream 2988 * sizes. The smallest resolution is defined as being at least as large 2989 * as the largest requested output stream size; the camera pipeline must 2990 * never digitally upsample sensor data when the crop region covers the 2991 * whole sensor. In general, this means that if only small output stream 2992 * resolutions are configured, the sensor can provide a higher frame 2993 * rate.</li> 2994 * <li>Since any request may use any or all the currently configured 2995 * output streams, the sensor and ISP must be configured to support 2996 * scaling a single capture to all the streams at the same time. This 2997 * means the camera pipeline must be ready to produce the largest 2998 * requested output size without any delay. Therefore, the overall 2999 * frame rate of a given configured stream set is governed only by the 3000 * largest requested stream resolution.</li> 3001 * <li>Using more than one output stream in a request does not affect the 3002 * frame duration.</li> 3003 * <li>Certain format-streams may need to do additional background processing 3004 * before data is consumed/produced by that stream. These processors 3005 * can run concurrently to the rest of the camera pipeline, but 3006 * cannot process more than 1 capture at a time.</li> 3007 * </ul> 3008 * <p>The necessary information for the application, given the model above, 3009 * is provided via the {@link CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap} field using 3010 * {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputMinFrameDuration }. 3011 * These are used to determine the maximum frame rate / minimum frame 3012 * duration that is possible for a given stream configuration.</p> 3013 * <p>Specifically, the application can use the following rules to 3014 * determine the minimum frame duration it can request from the camera 3015 * device:</p> 3016 * <ol> 3017 * <li>Let the set of currently configured input/output streams 3018 * be called <code>S</code>.</li> 3019 * <li>Find the minimum frame durations for each stream in <code>S</code>, by looking 3020 * it up in {@link CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap} using {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputMinFrameDuration } 3021 * (with its respective size/format). Let this set of frame durations be 3022 * called <code>F</code>.</li> 3023 * <li>For any given request <code>R</code>, the minimum frame duration allowed 3024 * for <code>R</code> is the maximum out of all values in <code>F</code>. Let the streams 3025 * used in <code>R</code> be called <code>S_r</code>.</li> 3026 * </ol> 3027 * <p>If none of the streams in <code>S_r</code> have a stall time (listed in {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputStallDuration } 3028 * using its respective size/format), then the frame duration in <code>F</code> 3029 * determines the steady state frame rate that the application will get 3030 * if it uses <code>R</code> as a repeating request. Let this special kind of 3031 * request be called <code>Rsimple</code>.</p> 3032 * <p>A repeating request <code>Rsimple</code> can be <em>occasionally</em> interleaved 3033 * by a single capture of a new request <code>Rstall</code> (which has at least 3034 * one in-use stream with a non-0 stall time) and if <code>Rstall</code> has the 3035 * same minimum frame duration this will not cause a frame rate loss 3036 * if all buffers from the previous <code>Rstall</code> have already been 3037 * delivered.</p> 3038 * <p>For more details about stalling, see 3039 * {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputStallDuration }.</p> 3040 * <p>This control is only effective if {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} or {@link CaptureRequest#CONTROL_MODE android.control.mode} is set to 3041 * OFF; otherwise the auto-exposure algorithm will override this value.</p> 3042 * <p><b>Units</b>: Nanoseconds</p> 3043 * <p><b>Range of valid values:</b><br> 3044 * See {@link CameraCharacteristics#SENSOR_INFO_MAX_FRAME_DURATION android.sensor.info.maxFrameDuration}, 3045 * {@link CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap}. The duration 3046 * is capped to <code>max(duration, exposureTime + overhead)</code>.</p> 3047 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3048 * <p><b>Full capability</b> - 3049 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3050 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3051 * 3052 * @see CaptureRequest#CONTROL_AE_MODE 3053 * @see CaptureRequest#CONTROL_MODE 3054 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3055 * @see CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP 3056 * @see CameraCharacteristics#SENSOR_INFO_MAX_FRAME_DURATION 3057 */ 3058 @PublicKey 3059 public static final Key<Long> SENSOR_FRAME_DURATION = 3060 new Key<Long>("android.sensor.frameDuration", long.class); 3061 3062 /** 3063 * <p>The amount of gain applied to sensor data 3064 * before processing.</p> 3065 * <p>The sensitivity is the standard ISO sensitivity value, 3066 * as defined in ISO 12232:2006.</p> 3067 * <p>The sensitivity must be within {@link CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE android.sensor.info.sensitivityRange}, and 3068 * if if it less than {@link CameraCharacteristics#SENSOR_MAX_ANALOG_SENSITIVITY android.sensor.maxAnalogSensitivity}, the camera device 3069 * is guaranteed to use only analog amplification for applying the gain.</p> 3070 * <p>If the camera device cannot apply the exact sensitivity 3071 * requested, it will reduce the gain to the nearest supported 3072 * value. The final sensitivity used will be available in the 3073 * output capture result.</p> 3074 * <p><b>Units</b>: ISO arithmetic units</p> 3075 * <p><b>Range of valid values:</b><br> 3076 * {@link CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE android.sensor.info.sensitivityRange}</p> 3077 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3078 * <p><b>Full capability</b> - 3079 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3080 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3081 * 3082 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3083 * @see CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE 3084 * @see CameraCharacteristics#SENSOR_MAX_ANALOG_SENSITIVITY 3085 */ 3086 @PublicKey 3087 public static final Key<Integer> SENSOR_SENSITIVITY = 3088 new Key<Integer>("android.sensor.sensitivity", int.class); 3089 3090 /** 3091 * <p>Time at start of exposure of first 3092 * row of the image sensor active array, in nanoseconds.</p> 3093 * <p>The timestamps are also included in all image 3094 * buffers produced for the same capture, and will be identical 3095 * on all the outputs.</p> 3096 * <p>When {@link CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE android.sensor.info.timestampSource} <code>==</code> UNKNOWN, 3097 * the timestamps measure time since an unspecified starting point, 3098 * and are monotonically increasing. They can be compared with the 3099 * timestamps for other captures from the same camera device, but are 3100 * not guaranteed to be comparable to any other time source.</p> 3101 * <p>When {@link CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE android.sensor.info.timestampSource} <code>==</code> REALTIME, the 3102 * timestamps measure time in the same timebase as {@link android.os.SystemClock#elapsedRealtimeNanos }, and they can 3103 * be compared to other timestamps from other subsystems that 3104 * are using that base.</p> 3105 * <p>For reprocessing, the timestamp will match the start of exposure of 3106 * the input image, i.e. {@link CaptureResult#SENSOR_TIMESTAMP the 3107 * timestamp} in the TotalCaptureResult that was used to create the 3108 * reprocess capture request.</p> 3109 * <p><b>Units</b>: Nanoseconds</p> 3110 * <p><b>Range of valid values:</b><br> 3111 * > 0</p> 3112 * <p>This key is available on all devices.</p> 3113 * 3114 * @see CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE 3115 */ 3116 @PublicKey 3117 public static final Key<Long> SENSOR_TIMESTAMP = 3118 new Key<Long>("android.sensor.timestamp", long.class); 3119 3120 /** 3121 * <p>The estimated camera neutral color in the native sensor colorspace at 3122 * the time of capture.</p> 3123 * <p>This value gives the neutral color point encoded as an RGB value in the 3124 * native sensor color space. The neutral color point indicates the 3125 * currently estimated white point of the scene illumination. It can be 3126 * used to interpolate between the provided color transforms when 3127 * processing raw sensor data.</p> 3128 * <p>The order of the values is R, G, B; where R is in the lowest index.</p> 3129 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3130 */ 3131 @PublicKey 3132 public static final Key<Rational[]> SENSOR_NEUTRAL_COLOR_POINT = 3133 new Key<Rational[]>("android.sensor.neutralColorPoint", Rational[].class); 3134 3135 /** 3136 * <p>Noise model coefficients for each CFA mosaic channel.</p> 3137 * <p>This key contains two noise model coefficients for each CFA channel 3138 * corresponding to the sensor amplification (S) and sensor readout 3139 * noise (O). These are given as pairs of coefficients for each channel 3140 * in the same order as channels listed for the CFA layout key 3141 * (see {@link CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT android.sensor.info.colorFilterArrangement}). This is 3142 * represented as an array of Pair<Double, Double>, where 3143 * the first member of the Pair at index n is the S coefficient and the 3144 * second member is the O coefficient for the nth color channel in the CFA.</p> 3145 * <p>These coefficients are used in a two parameter noise model to describe 3146 * the amount of noise present in the image for each CFA channel. The 3147 * noise model used here is:</p> 3148 * <p>N(x) = sqrt(Sx + O)</p> 3149 * <p>Where x represents the recorded signal of a CFA channel normalized to 3150 * the range [0, 1], and S and O are the noise model coeffiecients for 3151 * that channel.</p> 3152 * <p>A more detailed description of the noise model can be found in the 3153 * Adobe DNG specification for the NoiseProfile tag.</p> 3154 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3155 * 3156 * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT 3157 */ 3158 @PublicKey 3159 public static final Key<android.util.Pair<Double,Double>[]> SENSOR_NOISE_PROFILE = 3160 new Key<android.util.Pair<Double,Double>[]>("android.sensor.noiseProfile", new TypeReference<android.util.Pair<Double,Double>[]>() {{ }}); 3161 3162 /** 3163 * <p>The worst-case divergence between Bayer green channels.</p> 3164 * <p>This value is an estimate of the worst case split between the 3165 * Bayer green channels in the red and blue rows in the sensor color 3166 * filter array.</p> 3167 * <p>The green split is calculated as follows:</p> 3168 * <ol> 3169 * <li>A 5x5 pixel (or larger) window W within the active sensor array is 3170 * chosen. The term 'pixel' here is taken to mean a group of 4 Bayer 3171 * mosaic channels (R, Gr, Gb, B). The location and size of the window 3172 * chosen is implementation defined, and should be chosen to provide a 3173 * green split estimate that is both representative of the entire image 3174 * for this camera sensor, and can be calculated quickly.</li> 3175 * <li>The arithmetic mean of the green channels from the red 3176 * rows (mean_Gr) within W is computed.</li> 3177 * <li>The arithmetic mean of the green channels from the blue 3178 * rows (mean_Gb) within W is computed.</li> 3179 * <li>The maximum ratio R of the two means is computed as follows: 3180 * <code>R = max((mean_Gr + 1)/(mean_Gb + 1), (mean_Gb + 1)/(mean_Gr + 1))</code></li> 3181 * </ol> 3182 * <p>The ratio R is the green split divergence reported for this property, 3183 * which represents how much the green channels differ in the mosaic 3184 * pattern. This value is typically used to determine the treatment of 3185 * the green mosaic channels when demosaicing.</p> 3186 * <p>The green split value can be roughly interpreted as follows:</p> 3187 * <ul> 3188 * <li>R < 1.03 is a negligible split (<3% divergence).</li> 3189 * <li>1.20 <= R >= 1.03 will require some software 3190 * correction to avoid demosaic errors (3-20% divergence).</li> 3191 * <li>R > 1.20 will require strong software correction to produce 3192 * a usuable image (>20% divergence).</li> 3193 * </ul> 3194 * <p><b>Range of valid values:</b><br></p> 3195 * <p>>= 0</p> 3196 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3197 */ 3198 @PublicKey 3199 public static final Key<Float> SENSOR_GREEN_SPLIT = 3200 new Key<Float>("android.sensor.greenSplit", float.class); 3201 3202 /** 3203 * <p>A pixel <code>[R, G_even, G_odd, B]</code> that supplies the test pattern 3204 * when {@link CaptureRequest#SENSOR_TEST_PATTERN_MODE android.sensor.testPatternMode} is SOLID_COLOR.</p> 3205 * <p>Each color channel is treated as an unsigned 32-bit integer. 3206 * The camera device then uses the most significant X bits 3207 * that correspond to how many bits are in its Bayer raw sensor 3208 * output.</p> 3209 * <p>For example, a sensor with RAW10 Bayer output would use the 3210 * 10 most significant bits from each color channel.</p> 3211 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3212 * 3213 * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE 3214 */ 3215 @PublicKey 3216 public static final Key<int[]> SENSOR_TEST_PATTERN_DATA = 3217 new Key<int[]>("android.sensor.testPatternData", int[].class); 3218 3219 /** 3220 * <p>When enabled, the sensor sends a test pattern instead of 3221 * doing a real exposure from the camera.</p> 3222 * <p>When a test pattern is enabled, all manual sensor controls specified 3223 * by android.sensor.* will be ignored. All other controls should 3224 * work as normal.</p> 3225 * <p>For example, if manual flash is enabled, flash firing should still 3226 * occur (and that the test pattern remain unmodified, since the flash 3227 * would not actually affect it).</p> 3228 * <p>Defaults to OFF.</p> 3229 * <p><b>Possible values:</b> 3230 * <ul> 3231 * <li>{@link #SENSOR_TEST_PATTERN_MODE_OFF OFF}</li> 3232 * <li>{@link #SENSOR_TEST_PATTERN_MODE_SOLID_COLOR SOLID_COLOR}</li> 3233 * <li>{@link #SENSOR_TEST_PATTERN_MODE_COLOR_BARS COLOR_BARS}</li> 3234 * <li>{@link #SENSOR_TEST_PATTERN_MODE_COLOR_BARS_FADE_TO_GRAY COLOR_BARS_FADE_TO_GRAY}</li> 3235 * <li>{@link #SENSOR_TEST_PATTERN_MODE_PN9 PN9}</li> 3236 * <li>{@link #SENSOR_TEST_PATTERN_MODE_CUSTOM1 CUSTOM1}</li> 3237 * </ul></p> 3238 * <p><b>Available values for this device:</b><br> 3239 * {@link CameraCharacteristics#SENSOR_AVAILABLE_TEST_PATTERN_MODES android.sensor.availableTestPatternModes}</p> 3240 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3241 * 3242 * @see CameraCharacteristics#SENSOR_AVAILABLE_TEST_PATTERN_MODES 3243 * @see #SENSOR_TEST_PATTERN_MODE_OFF 3244 * @see #SENSOR_TEST_PATTERN_MODE_SOLID_COLOR 3245 * @see #SENSOR_TEST_PATTERN_MODE_COLOR_BARS 3246 * @see #SENSOR_TEST_PATTERN_MODE_COLOR_BARS_FADE_TO_GRAY 3247 * @see #SENSOR_TEST_PATTERN_MODE_PN9 3248 * @see #SENSOR_TEST_PATTERN_MODE_CUSTOM1 3249 */ 3250 @PublicKey 3251 public static final Key<Integer> SENSOR_TEST_PATTERN_MODE = 3252 new Key<Integer>("android.sensor.testPatternMode", int.class); 3253 3254 /** 3255 * <p>Duration between the start of first row exposure 3256 * and the start of last row exposure.</p> 3257 * <p>This is the exposure time skew between the first and last 3258 * row exposure start times. The first row and the last row are 3259 * the first and last rows inside of the 3260 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.</p> 3261 * <p>For typical camera sensors that use rolling shutters, this is also equivalent 3262 * to the frame readout time.</p> 3263 * <p><b>Units</b>: Nanoseconds</p> 3264 * <p><b>Range of valid values:</b><br> 3265 * >= 0 and < 3266 * {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputMinFrameDuration }.</p> 3267 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3268 * <p><b>Limited capability</b> - 3269 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 3270 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3271 * 3272 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3273 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 3274 */ 3275 @PublicKey 3276 public static final Key<Long> SENSOR_ROLLING_SHUTTER_SKEW = 3277 new Key<Long>("android.sensor.rollingShutterSkew", long.class); 3278 3279 /** 3280 * <p>Quality of lens shading correction applied 3281 * to the image data.</p> 3282 * <p>When set to OFF mode, no lens shading correction will be applied by the 3283 * camera device, and an identity lens shading map data will be provided 3284 * if <code>{@link CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE android.statistics.lensShadingMapMode} == ON</code>. For example, for lens 3285 * shading map with size of <code>[ 4, 3 ]</code>, 3286 * the output {@link CaptureResult#STATISTICS_LENS_SHADING_CORRECTION_MAP android.statistics.lensShadingCorrectionMap} for this case will be an identity 3287 * map shown below:</p> 3288 * <pre><code>[ 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 3289 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 3290 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 3291 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 3292 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 3293 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 ] 3294 * </code></pre> 3295 * <p>When set to other modes, lens shading correction will be applied by the camera 3296 * device. Applications can request lens shading map data by setting 3297 * {@link CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE android.statistics.lensShadingMapMode} to ON, and then the camera device will provide lens 3298 * shading map data in {@link CaptureResult#STATISTICS_LENS_SHADING_CORRECTION_MAP android.statistics.lensShadingCorrectionMap}; the returned shading map 3299 * data will be the one applied by the camera device for this capture request.</p> 3300 * <p>The shading map data may depend on the auto-exposure (AE) and AWB statistics, therefore 3301 * the reliability of the map data may be affected by the AE and AWB algorithms. When AE and 3302 * AWB are in AUTO modes({@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} <code>!=</code> OFF and {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} <code>!=</code> 3303 * OFF), to get best results, it is recommended that the applications wait for the AE and AWB 3304 * to be converged before using the returned shading map data.</p> 3305 * <p><b>Possible values:</b> 3306 * <ul> 3307 * <li>{@link #SHADING_MODE_OFF OFF}</li> 3308 * <li>{@link #SHADING_MODE_FAST FAST}</li> 3309 * <li>{@link #SHADING_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 3310 * </ul></p> 3311 * <p><b>Available values for this device:</b><br> 3312 * {@link CameraCharacteristics#SHADING_AVAILABLE_MODES android.shading.availableModes}</p> 3313 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3314 * <p><b>Full capability</b> - 3315 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3316 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3317 * 3318 * @see CaptureRequest#CONTROL_AE_MODE 3319 * @see CaptureRequest#CONTROL_AWB_MODE 3320 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3321 * @see CameraCharacteristics#SHADING_AVAILABLE_MODES 3322 * @see CaptureResult#STATISTICS_LENS_SHADING_CORRECTION_MAP 3323 * @see CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE 3324 * @see #SHADING_MODE_OFF 3325 * @see #SHADING_MODE_FAST 3326 * @see #SHADING_MODE_HIGH_QUALITY 3327 */ 3328 @PublicKey 3329 public static final Key<Integer> SHADING_MODE = 3330 new Key<Integer>("android.shading.mode", int.class); 3331 3332 /** 3333 * <p>Operating mode for the face detector 3334 * unit.</p> 3335 * <p>Whether face detection is enabled, and whether it 3336 * should output just the basic fields or the full set of 3337 * fields.</p> 3338 * <p><b>Possible values:</b> 3339 * <ul> 3340 * <li>{@link #STATISTICS_FACE_DETECT_MODE_OFF OFF}</li> 3341 * <li>{@link #STATISTICS_FACE_DETECT_MODE_SIMPLE SIMPLE}</li> 3342 * <li>{@link #STATISTICS_FACE_DETECT_MODE_FULL FULL}</li> 3343 * </ul></p> 3344 * <p><b>Available values for this device:</b><br> 3345 * {@link CameraCharacteristics#STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES android.statistics.info.availableFaceDetectModes}</p> 3346 * <p>This key is available on all devices.</p> 3347 * 3348 * @see CameraCharacteristics#STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES 3349 * @see #STATISTICS_FACE_DETECT_MODE_OFF 3350 * @see #STATISTICS_FACE_DETECT_MODE_SIMPLE 3351 * @see #STATISTICS_FACE_DETECT_MODE_FULL 3352 */ 3353 @PublicKey 3354 public static final Key<Integer> STATISTICS_FACE_DETECT_MODE = 3355 new Key<Integer>("android.statistics.faceDetectMode", int.class); 3356 3357 /** 3358 * <p>List of unique IDs for detected faces.</p> 3359 * <p>Each detected face is given a unique ID that is valid for as long as the face is visible 3360 * to the camera device. A face that leaves the field of view and later returns may be 3361 * assigned a new ID.</p> 3362 * <p>Only available if {@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} == FULL 3363 * This key is available on all devices.</p> 3364 * 3365 * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE 3366 * @hide 3367 */ 3368 public static final Key<int[]> STATISTICS_FACE_IDS = 3369 new Key<int[]>("android.statistics.faceIds", int[].class); 3370 3371 /** 3372 * <p>List of landmarks for detected 3373 * faces.</p> 3374 * <p>The coordinate system is that of {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}, with 3375 * <code>(0, 0)</code> being the top-left pixel of the active array.</p> 3376 * <p>Only available if {@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} == FULL 3377 * This key is available on all devices.</p> 3378 * 3379 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 3380 * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE 3381 * @hide 3382 */ 3383 public static final Key<int[]> STATISTICS_FACE_LANDMARKS = 3384 new Key<int[]>("android.statistics.faceLandmarks", int[].class); 3385 3386 /** 3387 * <p>List of the bounding rectangles for detected 3388 * faces.</p> 3389 * <p>The coordinate system is that of {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}, with 3390 * <code>(0, 0)</code> being the top-left pixel of the active array.</p> 3391 * <p>Only available if {@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} != OFF 3392 * This key is available on all devices.</p> 3393 * 3394 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 3395 * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE 3396 * @hide 3397 */ 3398 public static final Key<android.graphics.Rect[]> STATISTICS_FACE_RECTANGLES = 3399 new Key<android.graphics.Rect[]>("android.statistics.faceRectangles", android.graphics.Rect[].class); 3400 3401 /** 3402 * <p>List of the face confidence scores for 3403 * detected faces</p> 3404 * <p>Only available if {@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} != OFF.</p> 3405 * <p><b>Range of valid values:</b><br> 3406 * 1-100</p> 3407 * <p>This key is available on all devices.</p> 3408 * 3409 * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE 3410 * @hide 3411 */ 3412 public static final Key<byte[]> STATISTICS_FACE_SCORES = 3413 new Key<byte[]>("android.statistics.faceScores", byte[].class); 3414 3415 /** 3416 * <p>List of the faces detected through camera face detection 3417 * in this capture.</p> 3418 * <p>Only available if {@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} <code>!=</code> OFF.</p> 3419 * <p>This key is available on all devices.</p> 3420 * 3421 * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE 3422 */ 3423 @PublicKey 3424 @SyntheticKey 3425 public static final Key<android.hardware.camera2.params.Face[]> STATISTICS_FACES = 3426 new Key<android.hardware.camera2.params.Face[]>("android.statistics.faces", android.hardware.camera2.params.Face[].class); 3427 3428 /** 3429 * <p>The shading map is a low-resolution floating-point map 3430 * that lists the coefficients used to correct for vignetting, for each 3431 * Bayer color channel.</p> 3432 * <p>The least shaded section of the image should have a gain factor 3433 * of 1; all other sections should have gains above 1.</p> 3434 * <p>When {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} = TRANSFORM_MATRIX, the map 3435 * must take into account the colorCorrection settings.</p> 3436 * <p>The shading map is for the entire active pixel array, and is not 3437 * affected by the crop region specified in the request. Each shading map 3438 * entry is the value of the shading compensation map over a specific 3439 * pixel on the sensor. Specifically, with a (N x M) resolution shading 3440 * map, and an active pixel array size (W x H), shading map entry 3441 * (x,y) ϵ (0 ... N-1, 0 ... M-1) is the value of the shading map at 3442 * pixel ( ((W-1)/(N-1)) * x, ((H-1)/(M-1)) * y) for the four color channels. 3443 * The map is assumed to be bilinearly interpolated between the sample points.</p> 3444 * <p>The channel order is [R, Geven, Godd, B], where Geven is the green 3445 * channel for the even rows of a Bayer pattern, and Godd is the odd rows. 3446 * The shading map is stored in a fully interleaved format.</p> 3447 * <p>The shading map should have on the order of 30-40 rows and columns, 3448 * and must be smaller than 64x64.</p> 3449 * <p>As an example, given a very small map defined as:</p> 3450 * <pre><code>width,height = [ 4, 3 ] 3451 * values = 3452 * [ 1.3, 1.2, 1.15, 1.2, 1.2, 1.2, 1.15, 1.2, 3453 * 1.1, 1.2, 1.2, 1.2, 1.3, 1.2, 1.3, 1.3, 3454 * 1.2, 1.2, 1.25, 1.1, 1.1, 1.1, 1.1, 1.0, 3455 * 1.0, 1.0, 1.0, 1.0, 1.2, 1.3, 1.25, 1.2, 3456 * 1.3, 1.2, 1.2, 1.3, 1.2, 1.15, 1.1, 1.2, 3457 * 1.2, 1.1, 1.0, 1.2, 1.3, 1.15, 1.2, 1.3 ] 3458 * </code></pre> 3459 * <p>The low-resolution scaling map images for each channel are 3460 * (displayed using nearest-neighbor interpolation):</p> 3461 * <p><img alt="Red lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/red_shading.png" /> 3462 * <img alt="Green (even rows) lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/green_e_shading.png" /> 3463 * <img alt="Green (odd rows) lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/green_o_shading.png" /> 3464 * <img alt="Blue lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/blue_shading.png" /></p> 3465 * <p>As a visualization only, inverting the full-color map to recover an 3466 * image of a gray wall (using bicubic interpolation for visual quality) as captured by the sensor gives:</p> 3467 * <p><img alt="Image of a uniform white wall (inverse shading map)" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/inv_shading.png" /></p> 3468 * <p><b>Range of valid values:</b><br> 3469 * Each gain factor is >= 1</p> 3470 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3471 * <p><b>Full capability</b> - 3472 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3473 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3474 * 3475 * @see CaptureRequest#COLOR_CORRECTION_MODE 3476 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3477 */ 3478 @PublicKey 3479 public static final Key<android.hardware.camera2.params.LensShadingMap> STATISTICS_LENS_SHADING_CORRECTION_MAP = 3480 new Key<android.hardware.camera2.params.LensShadingMap>("android.statistics.lensShadingCorrectionMap", android.hardware.camera2.params.LensShadingMap.class); 3481 3482 /** 3483 * <p>The shading map is a low-resolution floating-point map 3484 * that lists the coefficients used to correct for vignetting, for each 3485 * Bayer color channel of RAW image data.</p> 3486 * <p>The least shaded section of the image should have a gain factor 3487 * of 1; all other sections should have gains above 1.</p> 3488 * <p>When {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} = TRANSFORM_MATRIX, the map 3489 * must take into account the colorCorrection settings.</p> 3490 * <p>The shading map is for the entire active pixel array, and is not 3491 * affected by the crop region specified in the request. Each shading map 3492 * entry is the value of the shading compensation map over a specific 3493 * pixel on the sensor. Specifically, with a (N x M) resolution shading 3494 * map, and an active pixel array size (W x H), shading map entry 3495 * (x,y) ϵ (0 ... N-1, 0 ... M-1) is the value of the shading map at 3496 * pixel ( ((W-1)/(N-1)) * x, ((H-1)/(M-1)) * y) for the four color channels. 3497 * The map is assumed to be bilinearly interpolated between the sample points.</p> 3498 * <p>The channel order is [R, Geven, Godd, B], where Geven is the green 3499 * channel for the even rows of a Bayer pattern, and Godd is the odd rows. 3500 * The shading map is stored in a fully interleaved format, and its size 3501 * is provided in the camera static metadata by android.lens.info.shadingMapSize.</p> 3502 * <p>The shading map should have on the order of 30-40 rows and columns, 3503 * and must be smaller than 64x64.</p> 3504 * <p>As an example, given a very small map defined as:</p> 3505 * <pre><code>android.lens.info.shadingMapSize = [ 4, 3 ] 3506 * android.statistics.lensShadingMap = 3507 * [ 1.3, 1.2, 1.15, 1.2, 1.2, 1.2, 1.15, 1.2, 3508 * 1.1, 1.2, 1.2, 1.2, 1.3, 1.2, 1.3, 1.3, 3509 * 1.2, 1.2, 1.25, 1.1, 1.1, 1.1, 1.1, 1.0, 3510 * 1.0, 1.0, 1.0, 1.0, 1.2, 1.3, 1.25, 1.2, 3511 * 1.3, 1.2, 1.2, 1.3, 1.2, 1.15, 1.1, 1.2, 3512 * 1.2, 1.1, 1.0, 1.2, 1.3, 1.15, 1.2, 1.3 ] 3513 * </code></pre> 3514 * <p>The low-resolution scaling map images for each channel are 3515 * (displayed using nearest-neighbor interpolation):</p> 3516 * <p><img alt="Red lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/red_shading.png" /> 3517 * <img alt="Green (even rows) lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/green_e_shading.png" /> 3518 * <img alt="Green (odd rows) lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/green_o_shading.png" /> 3519 * <img alt="Blue lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/blue_shading.png" /></p> 3520 * <p>As a visualization only, inverting the full-color map to recover an 3521 * image of a gray wall (using bicubic interpolation for visual quality) 3522 * as captured by the sensor gives:</p> 3523 * <p><img alt="Image of a uniform white wall (inverse shading map)" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/inv_shading.png" /></p> 3524 * <p>Note that the RAW image data might be subject to lens shading 3525 * correction not reported on this map. Query 3526 * {@link CameraCharacteristics#SENSOR_INFO_LENS_SHADING_APPLIED android.sensor.info.lensShadingApplied} to see if RAW image data has subject 3527 * to lens shading correction. If {@link CameraCharacteristics#SENSOR_INFO_LENS_SHADING_APPLIED android.sensor.info.lensShadingApplied} 3528 * is TRUE, the RAW image data is subject to partial or full lens shading 3529 * correction. In the case full lens shading correction is applied to RAW 3530 * images, the gain factor map reported in this key will contain all 1.0 gains. 3531 * In other words, the map reported in this key is the remaining lens shading 3532 * that needs to be applied on the RAW image to get images without lens shading 3533 * artifacts. See {@link CameraCharacteristics#REQUEST_MAX_NUM_OUTPUT_RAW android.request.maxNumOutputRaw} for a list of RAW image 3534 * formats.</p> 3535 * <p><b>Range of valid values:</b><br> 3536 * Each gain factor is >= 1</p> 3537 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3538 * <p><b>Full capability</b> - 3539 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3540 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3541 * 3542 * @see CaptureRequest#COLOR_CORRECTION_MODE 3543 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3544 * @see CameraCharacteristics#REQUEST_MAX_NUM_OUTPUT_RAW 3545 * @see CameraCharacteristics#SENSOR_INFO_LENS_SHADING_APPLIED 3546 * @hide 3547 */ 3548 public static final Key<float[]> STATISTICS_LENS_SHADING_MAP = 3549 new Key<float[]>("android.statistics.lensShadingMap", float[].class); 3550 3551 /** 3552 * <p>The best-fit color channel gains calculated 3553 * by the camera device's statistics units for the current output frame.</p> 3554 * <p>This may be different than the gains used for this frame, 3555 * since statistics processing on data from a new frame 3556 * typically completes after the transform has already been 3557 * applied to that frame.</p> 3558 * <p>The 4 channel gains are defined in Bayer domain, 3559 * see {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} for details.</p> 3560 * <p>This value should always be calculated by the auto-white balance (AWB) block, 3561 * regardless of the android.control.* current values.</p> 3562 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3563 * 3564 * @see CaptureRequest#COLOR_CORRECTION_GAINS 3565 * @deprecated 3566 * @hide 3567 */ 3568 @Deprecated 3569 public static final Key<float[]> STATISTICS_PREDICTED_COLOR_GAINS = 3570 new Key<float[]>("android.statistics.predictedColorGains", float[].class); 3571 3572 /** 3573 * <p>The best-fit color transform matrix estimate 3574 * calculated by the camera device's statistics units for the current 3575 * output frame.</p> 3576 * <p>The camera device will provide the estimate from its 3577 * statistics unit on the white balance transforms to use 3578 * for the next frame. These are the values the camera device believes 3579 * are the best fit for the current output frame. This may 3580 * be different than the transform used for this frame, since 3581 * statistics processing on data from a new frame typically 3582 * completes after the transform has already been applied to 3583 * that frame.</p> 3584 * <p>These estimates must be provided for all frames, even if 3585 * capture settings and color transforms are set by the application.</p> 3586 * <p>This value should always be calculated by the auto-white balance (AWB) block, 3587 * regardless of the android.control.* current values.</p> 3588 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3589 * @deprecated 3590 * @hide 3591 */ 3592 @Deprecated 3593 public static final Key<Rational[]> STATISTICS_PREDICTED_COLOR_TRANSFORM = 3594 new Key<Rational[]>("android.statistics.predictedColorTransform", Rational[].class); 3595 3596 /** 3597 * <p>The camera device estimated scene illumination lighting 3598 * frequency.</p> 3599 * <p>Many light sources, such as most fluorescent lights, flicker at a rate 3600 * that depends on the local utility power standards. This flicker must be 3601 * accounted for by auto-exposure routines to avoid artifacts in captured images. 3602 * The camera device uses this entry to tell the application what the scene 3603 * illuminant frequency is.</p> 3604 * <p>When manual exposure control is enabled 3605 * (<code>{@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} == OFF</code> or <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} == 3606 * OFF</code>), the {@link CaptureRequest#CONTROL_AE_ANTIBANDING_MODE android.control.aeAntibandingMode} doesn't perform 3607 * antibanding, and the application can ensure it selects 3608 * exposure times that do not cause banding issues by looking 3609 * into this metadata field. See 3610 * {@link CaptureRequest#CONTROL_AE_ANTIBANDING_MODE android.control.aeAntibandingMode} for more details.</p> 3611 * <p>Reports NONE if there doesn't appear to be flickering illumination.</p> 3612 * <p><b>Possible values:</b> 3613 * <ul> 3614 * <li>{@link #STATISTICS_SCENE_FLICKER_NONE NONE}</li> 3615 * <li>{@link #STATISTICS_SCENE_FLICKER_50HZ 50HZ}</li> 3616 * <li>{@link #STATISTICS_SCENE_FLICKER_60HZ 60HZ}</li> 3617 * </ul></p> 3618 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3619 * <p><b>Full capability</b> - 3620 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3621 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3622 * 3623 * @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE 3624 * @see CaptureRequest#CONTROL_AE_MODE 3625 * @see CaptureRequest#CONTROL_MODE 3626 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3627 * @see #STATISTICS_SCENE_FLICKER_NONE 3628 * @see #STATISTICS_SCENE_FLICKER_50HZ 3629 * @see #STATISTICS_SCENE_FLICKER_60HZ 3630 */ 3631 @PublicKey 3632 public static final Key<Integer> STATISTICS_SCENE_FLICKER = 3633 new Key<Integer>("android.statistics.sceneFlicker", int.class); 3634 3635 /** 3636 * <p>Operating mode for hot pixel map generation.</p> 3637 * <p>If set to <code>true</code>, a hot pixel map is returned in {@link CaptureResult#STATISTICS_HOT_PIXEL_MAP android.statistics.hotPixelMap}. 3638 * If set to <code>false</code>, no hot pixel map will be returned.</p> 3639 * <p><b>Range of valid values:</b><br> 3640 * {@link CameraCharacteristics#STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES android.statistics.info.availableHotPixelMapModes}</p> 3641 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3642 * 3643 * @see CaptureResult#STATISTICS_HOT_PIXEL_MAP 3644 * @see CameraCharacteristics#STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES 3645 */ 3646 @PublicKey 3647 public static final Key<Boolean> STATISTICS_HOT_PIXEL_MAP_MODE = 3648 new Key<Boolean>("android.statistics.hotPixelMapMode", boolean.class); 3649 3650 /** 3651 * <p>List of <code>(x, y)</code> coordinates of hot/defective pixels on the sensor.</p> 3652 * <p>A coordinate <code>(x, y)</code> must lie between <code>(0, 0)</code>, and 3653 * <code>(width - 1, height - 1)</code> (inclusive), which are the top-left and 3654 * bottom-right of the pixel array, respectively. The width and 3655 * height dimensions are given in {@link CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE android.sensor.info.pixelArraySize}. 3656 * This may include hot pixels that lie outside of the active array 3657 * bounds given by {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.</p> 3658 * <p><b>Range of valid values:</b><br></p> 3659 * <p>n <= number of pixels on the sensor. 3660 * The <code>(x, y)</code> coordinates must be bounded by 3661 * {@link CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE android.sensor.info.pixelArraySize}.</p> 3662 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3663 * 3664 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 3665 * @see CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE 3666 */ 3667 @PublicKey 3668 public static final Key<android.graphics.Point[]> STATISTICS_HOT_PIXEL_MAP = 3669 new Key<android.graphics.Point[]>("android.statistics.hotPixelMap", android.graphics.Point[].class); 3670 3671 /** 3672 * <p>Whether the camera device will output the lens 3673 * shading map in output result metadata.</p> 3674 * <p>When set to ON, 3675 * android.statistics.lensShadingMap will be provided in 3676 * the output result metadata.</p> 3677 * <p>ON is always supported on devices with the RAW capability.</p> 3678 * <p><b>Possible values:</b> 3679 * <ul> 3680 * <li>{@link #STATISTICS_LENS_SHADING_MAP_MODE_OFF OFF}</li> 3681 * <li>{@link #STATISTICS_LENS_SHADING_MAP_MODE_ON ON}</li> 3682 * </ul></p> 3683 * <p><b>Available values for this device:</b><br> 3684 * {@link CameraCharacteristics#STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES android.statistics.info.availableLensShadingMapModes}</p> 3685 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3686 * <p><b>Full capability</b> - 3687 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3688 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3689 * 3690 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3691 * @see CameraCharacteristics#STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES 3692 * @see #STATISTICS_LENS_SHADING_MAP_MODE_OFF 3693 * @see #STATISTICS_LENS_SHADING_MAP_MODE_ON 3694 */ 3695 @PublicKey 3696 public static final Key<Integer> STATISTICS_LENS_SHADING_MAP_MODE = 3697 new Key<Integer>("android.statistics.lensShadingMapMode", int.class); 3698 3699 /** 3700 * <p>Tonemapping / contrast / gamma curve for the blue 3701 * channel, to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 3702 * CONTRAST_CURVE.</p> 3703 * <p>See android.tonemap.curveRed for more details.</p> 3704 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3705 * <p><b>Full capability</b> - 3706 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3707 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3708 * 3709 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3710 * @see CaptureRequest#TONEMAP_MODE 3711 * @hide 3712 */ 3713 public static final Key<float[]> TONEMAP_CURVE_BLUE = 3714 new Key<float[]>("android.tonemap.curveBlue", float[].class); 3715 3716 /** 3717 * <p>Tonemapping / contrast / gamma curve for the green 3718 * channel, to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 3719 * CONTRAST_CURVE.</p> 3720 * <p>See android.tonemap.curveRed for more details.</p> 3721 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3722 * <p><b>Full capability</b> - 3723 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3724 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3725 * 3726 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3727 * @see CaptureRequest#TONEMAP_MODE 3728 * @hide 3729 */ 3730 public static final Key<float[]> TONEMAP_CURVE_GREEN = 3731 new Key<float[]>("android.tonemap.curveGreen", float[].class); 3732 3733 /** 3734 * <p>Tonemapping / contrast / gamma curve for the red 3735 * channel, to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 3736 * CONTRAST_CURVE.</p> 3737 * <p>Each channel's curve is defined by an array of control points:</p> 3738 * <pre><code>android.tonemap.curveRed = 3739 * [ P0in, P0out, P1in, P1out, P2in, P2out, P3in, P3out, ..., PNin, PNout ] 3740 * 2 <= N <= {@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}</code></pre> 3741 * <p>These are sorted in order of increasing <code>Pin</code>; it is 3742 * required that input values 0.0 and 1.0 are included in the list to 3743 * define a complete mapping. For input values between control points, 3744 * the camera device must linearly interpolate between the control 3745 * points.</p> 3746 * <p>Each curve can have an independent number of points, and the number 3747 * of points can be less than max (that is, the request doesn't have to 3748 * always provide a curve with number of points equivalent to 3749 * {@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}).</p> 3750 * <p>A few examples, and their corresponding graphical mappings; these 3751 * only specify the red channel and the precision is limited to 4 3752 * digits, for conciseness.</p> 3753 * <p>Linear mapping:</p> 3754 * <pre><code>android.tonemap.curveRed = [ 0, 0, 1.0, 1.0 ] 3755 * </code></pre> 3756 * <p><img alt="Linear mapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/linear_tonemap.png" /></p> 3757 * <p>Invert mapping:</p> 3758 * <pre><code>android.tonemap.curveRed = [ 0, 1.0, 1.0, 0 ] 3759 * </code></pre> 3760 * <p><img alt="Inverting mapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/inverse_tonemap.png" /></p> 3761 * <p>Gamma 1/2.2 mapping, with 16 control points:</p> 3762 * <pre><code>android.tonemap.curveRed = [ 3763 * 0.0000, 0.0000, 0.0667, 0.2920, 0.1333, 0.4002, 0.2000, 0.4812, 3764 * 0.2667, 0.5484, 0.3333, 0.6069, 0.4000, 0.6594, 0.4667, 0.7072, 3765 * 0.5333, 0.7515, 0.6000, 0.7928, 0.6667, 0.8317, 0.7333, 0.8685, 3766 * 0.8000, 0.9035, 0.8667, 0.9370, 0.9333, 0.9691, 1.0000, 1.0000 ] 3767 * </code></pre> 3768 * <p><img alt="Gamma = 1/2.2 tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/gamma_tonemap.png" /></p> 3769 * <p>Standard sRGB gamma mapping, per IEC 61966-2-1:1999, with 16 control points:</p> 3770 * <pre><code>android.tonemap.curveRed = [ 3771 * 0.0000, 0.0000, 0.0667, 0.2864, 0.1333, 0.4007, 0.2000, 0.4845, 3772 * 0.2667, 0.5532, 0.3333, 0.6125, 0.4000, 0.6652, 0.4667, 0.7130, 3773 * 0.5333, 0.7569, 0.6000, 0.7977, 0.6667, 0.8360, 0.7333, 0.8721, 3774 * 0.8000, 0.9063, 0.8667, 0.9389, 0.9333, 0.9701, 1.0000, 1.0000 ] 3775 * </code></pre> 3776 * <p><img alt="sRGB tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p> 3777 * <p><b>Range of valid values:</b><br> 3778 * 0-1 on both input and output coordinates, normalized 3779 * as a floating-point value such that 0 == black and 1 == white.</p> 3780 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3781 * <p><b>Full capability</b> - 3782 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3783 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3784 * 3785 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3786 * @see CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS 3787 * @see CaptureRequest#TONEMAP_MODE 3788 * @hide 3789 */ 3790 public static final Key<float[]> TONEMAP_CURVE_RED = 3791 new Key<float[]>("android.tonemap.curveRed", float[].class); 3792 3793 /** 3794 * <p>Tonemapping / contrast / gamma curve to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} 3795 * is CONTRAST_CURVE.</p> 3796 * <p>The tonemapCurve consist of three curves for each of red, green, and blue 3797 * channels respectively. The following example uses the red channel as an 3798 * example. The same logic applies to green and blue channel. 3799 * Each channel's curve is defined by an array of control points:</p> 3800 * <pre><code>curveRed = 3801 * [ P0(in, out), P1(in, out), P2(in, out), P3(in, out), ..., PN(in, out) ] 3802 * 2 <= N <= {@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}</code></pre> 3803 * <p>These are sorted in order of increasing <code>Pin</code>; it is always 3804 * guaranteed that input values 0.0 and 1.0 are included in the list to 3805 * define a complete mapping. For input values between control points, 3806 * the camera device must linearly interpolate between the control 3807 * points.</p> 3808 * <p>Each curve can have an independent number of points, and the number 3809 * of points can be less than max (that is, the request doesn't have to 3810 * always provide a curve with number of points equivalent to 3811 * {@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}).</p> 3812 * <p>A few examples, and their corresponding graphical mappings; these 3813 * only specify the red channel and the precision is limited to 4 3814 * digits, for conciseness.</p> 3815 * <p>Linear mapping:</p> 3816 * <pre><code>curveRed = [ (0, 0), (1.0, 1.0) ] 3817 * </code></pre> 3818 * <p><img alt="Linear mapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/linear_tonemap.png" /></p> 3819 * <p>Invert mapping:</p> 3820 * <pre><code>curveRed = [ (0, 1.0), (1.0, 0) ] 3821 * </code></pre> 3822 * <p><img alt="Inverting mapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/inverse_tonemap.png" /></p> 3823 * <p>Gamma 1/2.2 mapping, with 16 control points:</p> 3824 * <pre><code>curveRed = [ 3825 * (0.0000, 0.0000), (0.0667, 0.2920), (0.1333, 0.4002), (0.2000, 0.4812), 3826 * (0.2667, 0.5484), (0.3333, 0.6069), (0.4000, 0.6594), (0.4667, 0.7072), 3827 * (0.5333, 0.7515), (0.6000, 0.7928), (0.6667, 0.8317), (0.7333, 0.8685), 3828 * (0.8000, 0.9035), (0.8667, 0.9370), (0.9333, 0.9691), (1.0000, 1.0000) ] 3829 * </code></pre> 3830 * <p><img alt="Gamma = 1/2.2 tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/gamma_tonemap.png" /></p> 3831 * <p>Standard sRGB gamma mapping, per IEC 61966-2-1:1999, with 16 control points:</p> 3832 * <pre><code>curveRed = [ 3833 * (0.0000, 0.0000), (0.0667, 0.2864), (0.1333, 0.4007), (0.2000, 0.4845), 3834 * (0.2667, 0.5532), (0.3333, 0.6125), (0.4000, 0.6652), (0.4667, 0.7130), 3835 * (0.5333, 0.7569), (0.6000, 0.7977), (0.6667, 0.8360), (0.7333, 0.8721), 3836 * (0.8000, 0.9063), (0.8667, 0.9389), (0.9333, 0.9701), (1.0000, 1.0000) ] 3837 * </code></pre> 3838 * <p><img alt="sRGB tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p> 3839 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3840 * <p><b>Full capability</b> - 3841 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3842 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3843 * 3844 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3845 * @see CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS 3846 * @see CaptureRequest#TONEMAP_MODE 3847 */ 3848 @PublicKey 3849 @SyntheticKey 3850 public static final Key<android.hardware.camera2.params.TonemapCurve> TONEMAP_CURVE = 3851 new Key<android.hardware.camera2.params.TonemapCurve>("android.tonemap.curve", android.hardware.camera2.params.TonemapCurve.class); 3852 3853 /** 3854 * <p>High-level global contrast/gamma/tonemapping control.</p> 3855 * <p>When switching to an application-defined contrast curve by setting 3856 * {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} to CONTRAST_CURVE, the curve is defined 3857 * per-channel with a set of <code>(in, out)</code> points that specify the 3858 * mapping from input high-bit-depth pixel value to the output 3859 * low-bit-depth value. Since the actual pixel ranges of both input 3860 * and output may change depending on the camera pipeline, the values 3861 * are specified by normalized floating-point numbers.</p> 3862 * <p>More-complex color mapping operations such as 3D color look-up 3863 * tables, selective chroma enhancement, or other non-linear color 3864 * transforms will be disabled when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 3865 * CONTRAST_CURVE.</p> 3866 * <p>When using either FAST or HIGH_QUALITY, the camera device will 3867 * emit its own tonemap curve in {@link CaptureRequest#TONEMAP_CURVE android.tonemap.curve}. 3868 * These values are always available, and as close as possible to the 3869 * actually used nonlinear/nonglobal transforms.</p> 3870 * <p>If a request is sent with CONTRAST_CURVE with the camera device's 3871 * provided curve in FAST or HIGH_QUALITY, the image's tonemap will be 3872 * roughly the same.</p> 3873 * <p><b>Possible values:</b> 3874 * <ul> 3875 * <li>{@link #TONEMAP_MODE_CONTRAST_CURVE CONTRAST_CURVE}</li> 3876 * <li>{@link #TONEMAP_MODE_FAST FAST}</li> 3877 * <li>{@link #TONEMAP_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 3878 * <li>{@link #TONEMAP_MODE_GAMMA_VALUE GAMMA_VALUE}</li> 3879 * <li>{@link #TONEMAP_MODE_PRESET_CURVE PRESET_CURVE}</li> 3880 * </ul></p> 3881 * <p><b>Available values for this device:</b><br> 3882 * {@link CameraCharacteristics#TONEMAP_AVAILABLE_TONE_MAP_MODES android.tonemap.availableToneMapModes}</p> 3883 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3884 * <p><b>Full capability</b> - 3885 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3886 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3887 * 3888 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3889 * @see CameraCharacteristics#TONEMAP_AVAILABLE_TONE_MAP_MODES 3890 * @see CaptureRequest#TONEMAP_CURVE 3891 * @see CaptureRequest#TONEMAP_MODE 3892 * @see #TONEMAP_MODE_CONTRAST_CURVE 3893 * @see #TONEMAP_MODE_FAST 3894 * @see #TONEMAP_MODE_HIGH_QUALITY 3895 * @see #TONEMAP_MODE_GAMMA_VALUE 3896 * @see #TONEMAP_MODE_PRESET_CURVE 3897 */ 3898 @PublicKey 3899 public static final Key<Integer> TONEMAP_MODE = 3900 new Key<Integer>("android.tonemap.mode", int.class); 3901 3902 /** 3903 * <p>Tonemapping curve to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 3904 * GAMMA_VALUE</p> 3905 * <p>The tonemap curve will be defined the following formula: 3906 * * OUT = pow(IN, 1.0 / gamma) 3907 * where IN and OUT is the input pixel value scaled to range [0.0, 1.0], 3908 * pow is the power function and gamma is the gamma value specified by this 3909 * key.</p> 3910 * <p>The same curve will be applied to all color channels. The camera device 3911 * may clip the input gamma value to its supported range. The actual applied 3912 * value will be returned in capture result.</p> 3913 * <p>The valid range of gamma value varies on different devices, but values 3914 * within [1.0, 5.0] are guaranteed not to be clipped.</p> 3915 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3916 * 3917 * @see CaptureRequest#TONEMAP_MODE 3918 */ 3919 @PublicKey 3920 public static final Key<Float> TONEMAP_GAMMA = 3921 new Key<Float>("android.tonemap.gamma", float.class); 3922 3923 /** 3924 * <p>Tonemapping curve to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 3925 * PRESET_CURVE</p> 3926 * <p>The tonemap curve will be defined by specified standard.</p> 3927 * <p>sRGB (approximated by 16 control points):</p> 3928 * <p><img alt="sRGB tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p> 3929 * <p>Rec. 709 (approximated by 16 control points):</p> 3930 * <p><img alt="Rec. 709 tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/rec709_tonemap.png" /></p> 3931 * <p>Note that above figures show a 16 control points approximation of preset 3932 * curves. Camera devices may apply a different approximation to the curve.</p> 3933 * <p><b>Possible values:</b> 3934 * <ul> 3935 * <li>{@link #TONEMAP_PRESET_CURVE_SRGB SRGB}</li> 3936 * <li>{@link #TONEMAP_PRESET_CURVE_REC709 REC709}</li> 3937 * </ul></p> 3938 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3939 * 3940 * @see CaptureRequest#TONEMAP_MODE 3941 * @see #TONEMAP_PRESET_CURVE_SRGB 3942 * @see #TONEMAP_PRESET_CURVE_REC709 3943 */ 3944 @PublicKey 3945 public static final Key<Integer> TONEMAP_PRESET_CURVE = 3946 new Key<Integer>("android.tonemap.presetCurve", int.class); 3947 3948 /** 3949 * <p>This LED is nominally used to indicate to the user 3950 * that the camera is powered on and may be streaming images back to the 3951 * Application Processor. In certain rare circumstances, the OS may 3952 * disable this when video is processed locally and not transmitted to 3953 * any untrusted applications.</p> 3954 * <p>In particular, the LED <em>must</em> always be on when the data could be 3955 * transmitted off the device. The LED <em>should</em> always be on whenever 3956 * data is stored locally on the device.</p> 3957 * <p>The LED <em>may</em> be off if a trusted application is using the data that 3958 * doesn't violate the above rules.</p> 3959 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3960 * @hide 3961 */ 3962 public static final Key<Boolean> LED_TRANSMIT = 3963 new Key<Boolean>("android.led.transmit", boolean.class); 3964 3965 /** 3966 * <p>Whether black-level compensation is locked 3967 * to its current values, or is free to vary.</p> 3968 * <p>Whether the black level offset was locked for this frame. Should be 3969 * ON if {@link CaptureRequest#BLACK_LEVEL_LOCK android.blackLevel.lock} was ON in the capture request, unless 3970 * a change in other capture settings forced the camera device to 3971 * perform a black level reset.</p> 3972 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3973 * <p><b>Full capability</b> - 3974 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3975 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3976 * 3977 * @see CaptureRequest#BLACK_LEVEL_LOCK 3978 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3979 */ 3980 @PublicKey 3981 public static final Key<Boolean> BLACK_LEVEL_LOCK = 3982 new Key<Boolean>("android.blackLevel.lock", boolean.class); 3983 3984 /** 3985 * <p>The frame number corresponding to the last request 3986 * with which the output result (metadata + buffers) has been fully 3987 * synchronized.</p> 3988 * <p>When a request is submitted to the camera device, there is usually a 3989 * delay of several frames before the controls get applied. A camera 3990 * device may either choose to account for this delay by implementing a 3991 * pipeline and carefully submit well-timed atomic control updates, or 3992 * it may start streaming control changes that span over several frame 3993 * boundaries.</p> 3994 * <p>In the latter case, whenever a request's settings change relative to 3995 * the previous submitted request, the full set of changes may take 3996 * multiple frame durations to fully take effect. Some settings may 3997 * take effect sooner (in less frame durations) than others.</p> 3998 * <p>While a set of control changes are being propagated, this value 3999 * will be CONVERGING.</p> 4000 * <p>Once it is fully known that a set of control changes have been 4001 * finished propagating, and the resulting updated control settings 4002 * have been read back by the camera device, this value will be set 4003 * to a non-negative frame number (corresponding to the request to 4004 * which the results have synchronized to).</p> 4005 * <p>Older camera device implementations may not have a way to detect 4006 * when all camera controls have been applied, and will always set this 4007 * value to UNKNOWN.</p> 4008 * <p>FULL capability devices will always have this value set to the 4009 * frame number of the request corresponding to this result.</p> 4010 * <p><em>Further details</em>:</p> 4011 * <ul> 4012 * <li>Whenever a request differs from the last request, any future 4013 * results not yet returned may have this value set to CONVERGING (this 4014 * could include any in-progress captures not yet returned by the camera 4015 * device, for more details see pipeline considerations below).</li> 4016 * <li>Submitting a series of multiple requests that differ from the 4017 * previous request (e.g. r1, r2, r3 s.t. r1 != r2 != r3) 4018 * moves the new synchronization frame to the last non-repeating 4019 * request (using the smallest frame number from the contiguous list of 4020 * repeating requests).</li> 4021 * <li>Submitting the same request repeatedly will not change this value 4022 * to CONVERGING, if it was already a non-negative value.</li> 4023 * <li>When this value changes to non-negative, that means that all of the 4024 * metadata controls from the request have been applied, all of the 4025 * metadata controls from the camera device have been read to the 4026 * updated values (into the result), and all of the graphics buffers 4027 * corresponding to this result are also synchronized to the request.</li> 4028 * </ul> 4029 * <p><em>Pipeline considerations</em>:</p> 4030 * <p>Submitting a request with updated controls relative to the previously 4031 * submitted requests may also invalidate the synchronization state 4032 * of all the results corresponding to currently in-flight requests.</p> 4033 * <p>In other words, results for this current request and up to 4034 * {@link CameraCharacteristics#REQUEST_PIPELINE_MAX_DEPTH android.request.pipelineMaxDepth} prior requests may have their 4035 * android.sync.frameNumber change to CONVERGING.</p> 4036 * <p><b>Possible values:</b> 4037 * <ul> 4038 * <li>{@link #SYNC_FRAME_NUMBER_CONVERGING CONVERGING}</li> 4039 * <li>{@link #SYNC_FRAME_NUMBER_UNKNOWN UNKNOWN}</li> 4040 * </ul></p> 4041 * <p><b>Available values for this device:</b><br> 4042 * Either a non-negative value corresponding to a 4043 * <code>frame_number</code>, or one of the two enums (CONVERGING / UNKNOWN).</p> 4044 * <p>This key is available on all devices.</p> 4045 * 4046 * @see CameraCharacteristics#REQUEST_PIPELINE_MAX_DEPTH 4047 * @see #SYNC_FRAME_NUMBER_CONVERGING 4048 * @see #SYNC_FRAME_NUMBER_UNKNOWN 4049 * @hide 4050 */ 4051 public static final Key<Long> SYNC_FRAME_NUMBER = 4052 new Key<Long>("android.sync.frameNumber", long.class); 4053 4054 /** 4055 * <p>The amount of exposure time increase factor applied to the original output 4056 * frame by the application processing before sending for reprocessing.</p> 4057 * <p>This is optional, and will be supported if the camera device supports YUV_REPROCESSING 4058 * capability ({@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} contains YUV_REPROCESSING).</p> 4059 * <p>For some YUV reprocessing use cases, the application may choose to filter the original 4060 * output frames to effectively reduce the noise to the same level as a frame that was 4061 * captured with longer exposure time. To be more specific, assuming the original captured 4062 * images were captured with a sensitivity of S and an exposure time of T, the model in 4063 * the camera device is that the amount of noise in the image would be approximately what 4064 * would be expected if the original capture parameters had been a sensitivity of 4065 * S/effectiveExposureFactor and an exposure time of T*effectiveExposureFactor, rather 4066 * than S and T respectively. If the captured images were processed by the application 4067 * before being sent for reprocessing, then the application may have used image processing 4068 * algorithms and/or multi-frame image fusion to reduce the noise in the 4069 * application-processed images (input images). By using the effectiveExposureFactor 4070 * control, the application can communicate to the camera device the actual noise level 4071 * improvement in the application-processed image. With this information, the camera 4072 * device can select appropriate noise reduction and edge enhancement parameters to avoid 4073 * excessive noise reduction ({@link CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode}) and insufficient edge 4074 * enhancement ({@link CaptureRequest#EDGE_MODE android.edge.mode}) being applied to the reprocessed frames.</p> 4075 * <p>For example, for multi-frame image fusion use case, the application may fuse 4076 * multiple output frames together to a final frame for reprocessing. When N image are 4077 * fused into 1 image for reprocessing, the exposure time increase factor could be up to 4078 * square root of N (based on a simple photon shot noise model). The camera device will 4079 * adjust the reprocessing noise reduction and edge enhancement parameters accordingly to 4080 * produce the best quality images.</p> 4081 * <p>This is relative factor, 1.0 indicates the application hasn't processed the input 4082 * buffer in a way that affects its effective exposure time.</p> 4083 * <p>This control is only effective for YUV reprocessing capture request. For noise 4084 * reduction reprocessing, it is only effective when <code>{@link CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode} != OFF</code>. 4085 * Similarly, for edge enhancement reprocessing, it is only effective when 4086 * <code>{@link CaptureRequest#EDGE_MODE android.edge.mode} != OFF</code>.</p> 4087 * <p><b>Units</b>: Relative exposure time increase factor.</p> 4088 * <p><b>Range of valid values:</b><br> 4089 * >= 1.0</p> 4090 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 4091 * <p><b>Limited capability</b> - 4092 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 4093 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 4094 * 4095 * @see CaptureRequest#EDGE_MODE 4096 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 4097 * @see CaptureRequest#NOISE_REDUCTION_MODE 4098 * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES 4099 */ 4100 @PublicKey 4101 public static final Key<Float> REPROCESS_EFFECTIVE_EXPOSURE_FACTOR = 4102 new Key<Float>("android.reprocess.effectiveExposureFactor", float.class); 4103 4104 /*~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~ 4105 * End generated code 4106 *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~O@*/ 4107 4108 4109 4110} 4111
