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 17 package android.hardware.camera2; 18 19 import android.annotation.NonNull; 20 import android.annotation.Nullable; 21 import android.hardware.camera2.impl.CameraMetadataNative; 22 import android.hardware.camera2.impl.CaptureResultExtras; 23 import android.hardware.camera2.impl.PublicKey; 24 import android.hardware.camera2.impl.SyntheticKey; 25 import android.hardware.camera2.utils.TypeReference; 26 import android.util.Log; 27 import android.util.Rational; 28 29 import 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 */ 52 public 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 */ Key(String name, Class<T> type, long vendorId)81 public Key(String name, Class<T> type, long vendorId) { 82 mKey = new CameraMetadataNative.Key<T>(name, type, vendorId); 83 } 84 85 /** 86 * Visible for testing and vendor extensions only. 87 * 88 * @hide 89 */ Key(String name, Class<T> type)90 public Key(String name, Class<T> type) { 91 mKey = new CameraMetadataNative.Key<T>(name, type); 92 } 93 94 /** 95 * Visible for testing and vendor extensions only. 96 * 97 * @hide 98 */ Key(String name, TypeReference<T> typeReference)99 public Key(String name, TypeReference<T> typeReference) { 100 mKey = new CameraMetadataNative.Key<T>(name, typeReference); 101 } 102 103 /** 104 * Return a camelCase, period separated name formatted like: 105 * {@code "root.section[.subsections].name"}. 106 * 107 * <p>Built-in keys exposed by the Android SDK are always prefixed with {@code "android."}; 108 * keys that are device/platform-specific are prefixed with {@code "com."}.</p> 109 * 110 * <p>For example, {@code CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP} would 111 * have a name of {@code "android.scaler.streamConfigurationMap"}; whereas a device 112 * specific key might look like {@code "com.google.nexus.data.private"}.</p> 113 * 114 * @return String representation of the key name 115 */ 116 @NonNull getName()117 public String getName() { 118 return mKey.getName(); 119 } 120 121 /** 122 * Return vendor tag id. 123 * 124 * @hide 125 */ getVendorId()126 public long getVendorId() { 127 return mKey.getVendorId(); 128 } 129 130 /** 131 * {@inheritDoc} 132 */ 133 @Override hashCode()134 public final int hashCode() { 135 return mKey.hashCode(); 136 } 137 138 /** 139 * {@inheritDoc} 140 */ 141 @SuppressWarnings("unchecked") 142 @Override equals(Object o)143 public final boolean equals(Object o) { 144 return o instanceof Key && ((Key<T>)o).mKey.equals(mKey); 145 } 146 147 /** 148 * Return this {@link Key} as a string representation. 149 * 150 * <p>{@code "CaptureResult.Key(%s)"}, where {@code %s} represents 151 * the name of this key as returned by {@link #getName}.</p> 152 * 153 * @return string representation of {@link Key} 154 */ 155 @NonNull 156 @Override toString()157 public String toString() { 158 return String.format("CaptureResult.Key(%s)", mKey.getName()); 159 } 160 161 /** 162 * Visible for CameraMetadataNative implementation only; do not use. 163 * 164 * TODO: Make this private or remove it altogether. 165 * 166 * @hide 167 */ getNativeKey()168 public CameraMetadataNative.Key<T> getNativeKey() { 169 return mKey; 170 } 171 172 @SuppressWarnings({ "unchecked" }) Key(CameraMetadataNative.Key<?> nativeKey)173 /*package*/ Key(CameraMetadataNative.Key<?> nativeKey) { 174 mKey = (CameraMetadataNative.Key<T>) nativeKey; 175 } 176 } 177 178 private final CameraMetadataNative mResults; 179 private final CaptureRequest mRequest; 180 private final int mSequenceId; 181 private final long mFrameNumber; 182 183 /** 184 * Takes ownership of the passed-in properties object 185 * 186 * <p>For internal use only</p> 187 * @hide 188 */ CaptureResult(CameraMetadataNative results, CaptureRequest parent, CaptureResultExtras extras)189 public CaptureResult(CameraMetadataNative results, CaptureRequest parent, 190 CaptureResultExtras extras) { 191 if (results == null) { 192 throw new IllegalArgumentException("results was null"); 193 } 194 195 if (parent == null) { 196 throw new IllegalArgumentException("parent was null"); 197 } 198 199 if (extras == null) { 200 throw new IllegalArgumentException("extras was null"); 201 } 202 203 mResults = CameraMetadataNative.move(results); 204 if (mResults.isEmpty()) { 205 throw new AssertionError("Results must not be empty"); 206 } 207 setNativeInstance(mResults); 208 mRequest = parent; 209 mSequenceId = extras.getRequestId(); 210 mFrameNumber = extras.getFrameNumber(); 211 } 212 213 /** 214 * Returns a copy of the underlying {@link CameraMetadataNative}. 215 * @hide 216 */ getNativeCopy()217 public CameraMetadataNative getNativeCopy() { 218 return new CameraMetadataNative(mResults); 219 } 220 221 /** 222 * Creates a request-less result. 223 * 224 * <p><strong>For testing only.</strong></p> 225 * @hide 226 */ CaptureResult(CameraMetadataNative results, int sequenceId)227 public CaptureResult(CameraMetadataNative results, int sequenceId) { 228 if (results == null) { 229 throw new IllegalArgumentException("results was null"); 230 } 231 232 mResults = CameraMetadataNative.move(results); 233 if (mResults.isEmpty()) { 234 throw new AssertionError("Results must not be empty"); 235 } 236 237 setNativeInstance(mResults); 238 mRequest = null; 239 mSequenceId = sequenceId; 240 mFrameNumber = -1; 241 } 242 243 /** 244 * Get a capture result field value. 245 * 246 * <p>The field definitions can be found in {@link CaptureResult}.</p> 247 * 248 * <p>Querying the value for the same key more than once will return a value 249 * which is equal to the previous queried value.</p> 250 * 251 * @throws IllegalArgumentException if the key was not valid 252 * 253 * @param key The result field to read. 254 * @return The value of that key, or {@code null} if the field is not set. 255 */ 256 @Nullable get(Key<T> key)257 public <T> T get(Key<T> key) { 258 T value = mResults.get(key); 259 if (VERBOSE) Log.v(TAG, "#get for Key = " + key.getName() + ", returned value = " + value); 260 return value; 261 } 262 263 /** 264 * {@inheritDoc} 265 * @hide 266 */ 267 @SuppressWarnings("unchecked") 268 @Override getProtected(Key<?> key)269 protected <T> T getProtected(Key<?> key) { 270 return (T) mResults.get(key); 271 } 272 273 /** 274 * {@inheritDoc} 275 * @hide 276 */ 277 @SuppressWarnings("unchecked") 278 @Override getKeyClass()279 protected Class<Key<?>> getKeyClass() { 280 Object thisClass = Key.class; 281 return (Class<Key<?>>)thisClass; 282 } 283 284 /** 285 * Dumps the native metadata contents to logcat. 286 * 287 * <p>Visibility for testing/debugging only. The results will not 288 * include any synthesized keys, as they are invisible to the native layer.</p> 289 * 290 * @hide 291 */ dumpToLog()292 public void dumpToLog() { 293 mResults.dumpToLog(); 294 } 295 296 /** 297 * {@inheritDoc} 298 */ 299 @Override 300 @NonNull getKeys()301 public List<Key<?>> getKeys() { 302 // Force the javadoc for this function to show up on the CaptureResult page 303 return super.getKeys(); 304 } 305 306 /** 307 * Get the request associated with this result. 308 * 309 * <p>Whenever a request has been fully or partially captured, with 310 * {@link CameraCaptureSession.CaptureCallback#onCaptureCompleted} or 311 * {@link CameraCaptureSession.CaptureCallback#onCaptureProgressed}, the {@code result}'s 312 * {@code getRequest()} will return that {@code request}. 313 * </p> 314 * 315 * <p>For example, 316 * <code><pre>cameraDevice.capture(someRequest, new CaptureCallback() { 317 * {@literal @}Override 318 * void onCaptureCompleted(CaptureRequest myRequest, CaptureResult myResult) { 319 * assert(myResult.getRequest.equals(myRequest) == true); 320 * } 321 * }, null); 322 * </code></pre> 323 * </p> 324 * 325 * @return The request associated with this result. Never {@code null}. 326 */ 327 @NonNull getRequest()328 public CaptureRequest getRequest() { 329 return mRequest; 330 } 331 332 /** 333 * Get the frame number associated with this result. 334 * 335 * <p>Whenever a request has been processed, regardless of failure or success, 336 * it gets a unique frame number assigned to its future result/failure.</p> 337 * 338 * <p>For the same type of request (capturing from the camera device or reprocessing), this 339 * value monotonically increments, starting with 0, for every new result or failure and the 340 * scope is the lifetime of the {@link CameraDevice}. Between different types of requests, 341 * the frame number may not monotonically increment. For example, the frame number of a newer 342 * reprocess result may be smaller than the frame number of an older result of capturing new 343 * images from the camera device, but the frame number of a newer reprocess result will never be 344 * smaller than the frame number of an older reprocess result.</p> 345 * 346 * @return The frame number 347 * 348 * @see CameraDevice#createCaptureRequest 349 * @see CameraDevice#createReprocessCaptureRequest 350 */ getFrameNumber()351 public long getFrameNumber() { 352 return mFrameNumber; 353 } 354 355 /** 356 * The sequence ID for this failure that was returned by the 357 * {@link CameraCaptureSession#capture} family of functions. 358 * 359 * <p>The sequence ID is a unique monotonically increasing value starting from 0, 360 * incremented every time a new group of requests is submitted to the CameraDevice.</p> 361 * 362 * @return int The ID for the sequence of requests that this capture result is a part of 363 * 364 * @see CameraDevice.CaptureCallback#onCaptureSequenceCompleted 365 * @see CameraDevice.CaptureCallback#onCaptureSequenceAborted 366 */ getSequenceId()367 public int getSequenceId() { 368 return mSequenceId; 369 } 370 371 /*@O~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~ 372 * The key entries below this point are generated from metadata 373 * definitions in /system/media/camera/docs. Do not modify by hand or 374 * modify the comment blocks at the start or end. 375 *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~*/ 376 377 /** 378 * <p>The mode control selects how the image data is converted from the 379 * sensor's native color into linear sRGB color.</p> 380 * <p>When auto-white balance (AWB) is enabled with {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode}, this 381 * control is overridden by the AWB routine. When AWB is disabled, the 382 * application controls how the color mapping is performed.</p> 383 * <p>We define the expected processing pipeline below. For consistency 384 * across devices, this is always the case with TRANSFORM_MATRIX.</p> 385 * <p>When either FULL or HIGH_QUALITY is used, the camera device may 386 * do additional processing but {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} and 387 * {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform} will still be provided by the 388 * camera device (in the results) and be roughly correct.</p> 389 * <p>Switching to TRANSFORM_MATRIX and using the data provided from 390 * FAST or HIGH_QUALITY will yield a picture with the same white point 391 * as what was produced by the camera device in the earlier frame.</p> 392 * <p>The expected processing pipeline is as follows:</p> 393 * <p><img alt="White balance processing pipeline" src="../../../../images/camera2/metadata/android.colorCorrection.mode/processing_pipeline.png" /></p> 394 * <p>The white balance is encoded by two values, a 4-channel white-balance 395 * gain vector (applied in the Bayer domain), and a 3x3 color transform 396 * matrix (applied after demosaic).</p> 397 * <p>The 4-channel white-balance gains are defined as:</p> 398 * <pre><code>{@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} = [ R G_even G_odd B ] 399 * </code></pre> 400 * <p>where <code>G_even</code> is the gain for green pixels on even rows of the 401 * output, and <code>G_odd</code> is the gain for green pixels on the odd rows. 402 * These may be identical for a given camera device implementation; if 403 * the camera device does not support a separate gain for even/odd green 404 * channels, it will use the <code>G_even</code> value, and write <code>G_odd</code> equal to 405 * <code>G_even</code> in the output result metadata.</p> 406 * <p>The matrices for color transforms are defined as a 9-entry vector:</p> 407 * <pre><code>{@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform} = [ I0 I1 I2 I3 I4 I5 I6 I7 I8 ] 408 * </code></pre> 409 * <p>which define a transform from input sensor colors, <code>P_in = [ r g b ]</code>, 410 * to output linear sRGB, <code>P_out = [ r' g' b' ]</code>,</p> 411 * <p>with colors as follows:</p> 412 * <pre><code>r' = I0r + I1g + I2b 413 * g' = I3r + I4g + I5b 414 * b' = I6r + I7g + I8b 415 * </code></pre> 416 * <p>Both the input and output value ranges must match. Overflow/underflow 417 * values are clipped to fit within the range.</p> 418 * <p><b>Possible values:</b> 419 * <ul> 420 * <li>{@link #COLOR_CORRECTION_MODE_TRANSFORM_MATRIX TRANSFORM_MATRIX}</li> 421 * <li>{@link #COLOR_CORRECTION_MODE_FAST FAST}</li> 422 * <li>{@link #COLOR_CORRECTION_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 423 * </ul></p> 424 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 425 * <p><b>Full capability</b> - 426 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 427 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 428 * 429 * @see CaptureRequest#COLOR_CORRECTION_GAINS 430 * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM 431 * @see CaptureRequest#CONTROL_AWB_MODE 432 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 433 * @see #COLOR_CORRECTION_MODE_TRANSFORM_MATRIX 434 * @see #COLOR_CORRECTION_MODE_FAST 435 * @see #COLOR_CORRECTION_MODE_HIGH_QUALITY 436 */ 437 @PublicKey 438 public static final Key<Integer> COLOR_CORRECTION_MODE = 439 new Key<Integer>("android.colorCorrection.mode", int.class); 440 441 /** 442 * <p>A color transform matrix to use to transform 443 * from sensor RGB color space to output linear sRGB color space.</p> 444 * <p>This matrix is either set by the camera device when the request 445 * {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} is not TRANSFORM_MATRIX, or 446 * directly by the application in the request when the 447 * {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} is TRANSFORM_MATRIX.</p> 448 * <p>In the latter case, the camera device may round the matrix to account 449 * for precision issues; the final rounded matrix should be reported back 450 * in this matrix result metadata. The transform should keep the magnitude 451 * of the output color values within <code>[0, 1.0]</code> (assuming input color 452 * values is within the normalized range <code>[0, 1.0]</code>), or clipping may occur.</p> 453 * <p>The valid range of each matrix element varies on different devices, but 454 * values within [-1.5, 3.0] are guaranteed not to be clipped.</p> 455 * <p><b>Units</b>: Unitless scale factors</p> 456 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 457 * <p><b>Full capability</b> - 458 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 459 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 460 * 461 * @see CaptureRequest#COLOR_CORRECTION_MODE 462 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 463 */ 464 @PublicKey 465 public static final Key<android.hardware.camera2.params.ColorSpaceTransform> COLOR_CORRECTION_TRANSFORM = 466 new Key<android.hardware.camera2.params.ColorSpaceTransform>("android.colorCorrection.transform", android.hardware.camera2.params.ColorSpaceTransform.class); 467 468 /** 469 * <p>Gains applying to Bayer raw color channels for 470 * white-balance.</p> 471 * <p>These per-channel gains are either set by the camera device 472 * when the request {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} is not 473 * TRANSFORM_MATRIX, or directly by the application in the 474 * request when the {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} is 475 * TRANSFORM_MATRIX.</p> 476 * <p>The gains in the result metadata are the gains actually 477 * applied by the camera device to the current frame.</p> 478 * <p>The valid range of gains varies on different devices, but gains 479 * between [1.0, 3.0] are guaranteed not to be clipped. Even if a given 480 * device allows gains below 1.0, this is usually not recommended because 481 * this can create color artifacts.</p> 482 * <p><b>Units</b>: Unitless gain factors</p> 483 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 484 * <p><b>Full capability</b> - 485 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 486 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 487 * 488 * @see CaptureRequest#COLOR_CORRECTION_MODE 489 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 490 */ 491 @PublicKey 492 public static final Key<android.hardware.camera2.params.RggbChannelVector> COLOR_CORRECTION_GAINS = 493 new Key<android.hardware.camera2.params.RggbChannelVector>("android.colorCorrection.gains", android.hardware.camera2.params.RggbChannelVector.class); 494 495 /** 496 * <p>Mode of operation for the chromatic aberration correction algorithm.</p> 497 * <p>Chromatic (color) aberration is caused by the fact that different wavelengths of light 498 * can not focus on the same point after exiting from the lens. This metadata defines 499 * the high level control of chromatic aberration correction algorithm, which aims to 500 * minimize the chromatic artifacts that may occur along the object boundaries in an 501 * image.</p> 502 * <p>FAST/HIGH_QUALITY both mean that camera device determined aberration 503 * correction will be applied. HIGH_QUALITY mode indicates that the camera device will 504 * use the highest-quality aberration correction algorithms, even if it slows down 505 * capture rate. FAST means the camera device will not slow down capture rate when 506 * applying aberration correction.</p> 507 * <p>LEGACY devices will always be in FAST mode.</p> 508 * <p><b>Possible values:</b> 509 * <ul> 510 * <li>{@link #COLOR_CORRECTION_ABERRATION_MODE_OFF OFF}</li> 511 * <li>{@link #COLOR_CORRECTION_ABERRATION_MODE_FAST FAST}</li> 512 * <li>{@link #COLOR_CORRECTION_ABERRATION_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 513 * </ul></p> 514 * <p><b>Available values for this device:</b><br> 515 * {@link CameraCharacteristics#COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES android.colorCorrection.availableAberrationModes}</p> 516 * <p>This key is available on all devices.</p> 517 * 518 * @see CameraCharacteristics#COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES 519 * @see #COLOR_CORRECTION_ABERRATION_MODE_OFF 520 * @see #COLOR_CORRECTION_ABERRATION_MODE_FAST 521 * @see #COLOR_CORRECTION_ABERRATION_MODE_HIGH_QUALITY 522 */ 523 @PublicKey 524 public static final Key<Integer> COLOR_CORRECTION_ABERRATION_MODE = 525 new Key<Integer>("android.colorCorrection.aberrationMode", int.class); 526 527 /** 528 * <p>The desired setting for the camera device's auto-exposure 529 * algorithm's antibanding compensation.</p> 530 * <p>Some kinds of lighting fixtures, such as some fluorescent 531 * lights, flicker at the rate of the power supply frequency 532 * (60Hz or 50Hz, depending on country). While this is 533 * typically not noticeable to a person, it can be visible to 534 * a camera device. If a camera sets its exposure time to the 535 * wrong value, the flicker may become visible in the 536 * viewfinder as flicker or in a final captured image, as a 537 * set of variable-brightness bands across the image.</p> 538 * <p>Therefore, the auto-exposure routines of camera devices 539 * include antibanding routines that ensure that the chosen 540 * exposure value will not cause such banding. The choice of 541 * exposure time depends on the rate of flicker, which the 542 * camera device can detect automatically, or the expected 543 * rate can be selected by the application using this 544 * control.</p> 545 * <p>A given camera device may not support all of the possible 546 * options for the antibanding mode. The 547 * {@link CameraCharacteristics#CONTROL_AE_AVAILABLE_ANTIBANDING_MODES android.control.aeAvailableAntibandingModes} key contains 548 * the available modes for a given camera device.</p> 549 * <p>AUTO mode is the default if it is available on given 550 * camera device. When AUTO mode is not available, the 551 * default will be either 50HZ or 60HZ, and both 50HZ 552 * and 60HZ will be available.</p> 553 * <p>If manual exposure control is enabled (by setting 554 * {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} or {@link CaptureRequest#CONTROL_MODE android.control.mode} to OFF), 555 * then this setting has no effect, and the application must 556 * ensure it selects exposure times that do not cause banding 557 * issues. The {@link CaptureResult#STATISTICS_SCENE_FLICKER android.statistics.sceneFlicker} key can assist 558 * the application in this.</p> 559 * <p><b>Possible values:</b> 560 * <ul> 561 * <li>{@link #CONTROL_AE_ANTIBANDING_MODE_OFF OFF}</li> 562 * <li>{@link #CONTROL_AE_ANTIBANDING_MODE_50HZ 50HZ}</li> 563 * <li>{@link #CONTROL_AE_ANTIBANDING_MODE_60HZ 60HZ}</li> 564 * <li>{@link #CONTROL_AE_ANTIBANDING_MODE_AUTO AUTO}</li> 565 * </ul></p> 566 * <p><b>Available values for this device:</b><br></p> 567 * <p>{@link CameraCharacteristics#CONTROL_AE_AVAILABLE_ANTIBANDING_MODES android.control.aeAvailableAntibandingModes}</p> 568 * <p>This key is available on all devices.</p> 569 * 570 * @see CameraCharacteristics#CONTROL_AE_AVAILABLE_ANTIBANDING_MODES 571 * @see CaptureRequest#CONTROL_AE_MODE 572 * @see CaptureRequest#CONTROL_MODE 573 * @see CaptureResult#STATISTICS_SCENE_FLICKER 574 * @see #CONTROL_AE_ANTIBANDING_MODE_OFF 575 * @see #CONTROL_AE_ANTIBANDING_MODE_50HZ 576 * @see #CONTROL_AE_ANTIBANDING_MODE_60HZ 577 * @see #CONTROL_AE_ANTIBANDING_MODE_AUTO 578 */ 579 @PublicKey 580 public static final Key<Integer> CONTROL_AE_ANTIBANDING_MODE = 581 new Key<Integer>("android.control.aeAntibandingMode", int.class); 582 583 /** 584 * <p>Adjustment to auto-exposure (AE) target image 585 * brightness.</p> 586 * <p>The adjustment is measured as a count of steps, with the 587 * step size defined by {@link CameraCharacteristics#CONTROL_AE_COMPENSATION_STEP android.control.aeCompensationStep} and the 588 * allowed range by {@link CameraCharacteristics#CONTROL_AE_COMPENSATION_RANGE android.control.aeCompensationRange}.</p> 589 * <p>For example, if the exposure value (EV) step is 0.333, '6' 590 * will mean an exposure compensation of +2 EV; -3 will mean an 591 * exposure compensation of -1 EV. One EV represents a doubling 592 * of image brightness. Note that this control will only be 593 * effective if {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} <code>!=</code> OFF. This control 594 * will take effect even when {@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} <code>== true</code>.</p> 595 * <p>In the event of exposure compensation value being changed, camera device 596 * may take several frames to reach the newly requested exposure target. 597 * During that time, {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} field will be in the SEARCHING 598 * state. Once the new exposure target is reached, {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} will 599 * change from SEARCHING to either CONVERGED, LOCKED (if AE lock is enabled), or 600 * FLASH_REQUIRED (if the scene is too dark for still capture).</p> 601 * <p><b>Units</b>: Compensation steps</p> 602 * <p><b>Range of valid values:</b><br> 603 * {@link CameraCharacteristics#CONTROL_AE_COMPENSATION_RANGE android.control.aeCompensationRange}</p> 604 * <p>This key is available on all devices.</p> 605 * 606 * @see CameraCharacteristics#CONTROL_AE_COMPENSATION_RANGE 607 * @see CameraCharacteristics#CONTROL_AE_COMPENSATION_STEP 608 * @see CaptureRequest#CONTROL_AE_LOCK 609 * @see CaptureRequest#CONTROL_AE_MODE 610 * @see CaptureResult#CONTROL_AE_STATE 611 */ 612 @PublicKey 613 public static final Key<Integer> CONTROL_AE_EXPOSURE_COMPENSATION = 614 new Key<Integer>("android.control.aeExposureCompensation", int.class); 615 616 /** 617 * <p>Whether auto-exposure (AE) is currently locked to its latest 618 * calculated values.</p> 619 * <p>When set to <code>true</code> (ON), the AE algorithm is locked to its latest parameters, 620 * and will not change exposure settings until the lock is set to <code>false</code> (OFF).</p> 621 * <p>Note that even when AE is locked, the flash may be fired if 622 * the {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is ON_AUTO_FLASH / 623 * ON_ALWAYS_FLASH / ON_AUTO_FLASH_REDEYE.</p> 624 * <p>When {@link CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION android.control.aeExposureCompensation} is changed, even if the AE lock 625 * is ON, the camera device will still adjust its exposure value.</p> 626 * <p>If AE precapture is triggered (see {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}) 627 * when AE is already locked, the camera device will not change the exposure time 628 * ({@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}) and sensitivity ({@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}) 629 * parameters. The flash may be fired if the {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} 630 * is ON_AUTO_FLASH/ON_AUTO_FLASH_REDEYE and the scene is too dark. If the 631 * {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is ON_ALWAYS_FLASH, the scene may become overexposed. 632 * Similarly, AE precapture trigger CANCEL has no effect when AE is already locked.</p> 633 * <p>When an AE precapture sequence is triggered, AE unlock will not be able to unlock 634 * the AE if AE is locked by the camera device internally during precapture metering 635 * sequence In other words, submitting requests with AE unlock has no effect for an 636 * ongoing precapture metering sequence. Otherwise, the precapture metering sequence 637 * will never succeed in a sequence of preview requests where AE lock is always set 638 * to <code>false</code>.</p> 639 * <p>Since the camera device has a pipeline of in-flight requests, the settings that 640 * get locked do not necessarily correspond to the settings that were present in the 641 * latest capture result received from the camera device, since additional captures 642 * and AE updates may have occurred even before the result was sent out. If an 643 * application is switching between automatic and manual control and wishes to eliminate 644 * any flicker during the switch, the following procedure is recommended:</p> 645 * <ol> 646 * <li>Starting in auto-AE mode:</li> 647 * <li>Lock AE</li> 648 * <li>Wait for the first result to be output that has the AE locked</li> 649 * <li>Copy exposure settings from that result into a request, set the request to manual AE</li> 650 * <li>Submit the capture request, proceed to run manual AE as desired.</li> 651 * </ol> 652 * <p>See {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} for AE lock related state transition details.</p> 653 * <p>This key is available on all devices.</p> 654 * 655 * @see CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION 656 * @see CaptureRequest#CONTROL_AE_MODE 657 * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER 658 * @see CaptureResult#CONTROL_AE_STATE 659 * @see CaptureRequest#SENSOR_EXPOSURE_TIME 660 * @see CaptureRequest#SENSOR_SENSITIVITY 661 */ 662 @PublicKey 663 public static final Key<Boolean> CONTROL_AE_LOCK = 664 new Key<Boolean>("android.control.aeLock", boolean.class); 665 666 /** 667 * <p>The desired mode for the camera device's 668 * auto-exposure routine.</p> 669 * <p>This control is only effective if {@link CaptureRequest#CONTROL_MODE android.control.mode} is 670 * AUTO.</p> 671 * <p>When set to any of the ON modes, the camera device's 672 * auto-exposure routine is enabled, overriding the 673 * application's selected exposure time, sensor sensitivity, 674 * and frame duration ({@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}, 675 * {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}, and 676 * {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration}). If one of the FLASH modes 677 * is selected, the camera device's flash unit controls are 678 * also overridden.</p> 679 * <p>The FLASH modes are only available if the camera device 680 * has a flash unit ({@link CameraCharacteristics#FLASH_INFO_AVAILABLE android.flash.info.available} is <code>true</code>).</p> 681 * <p>If flash TORCH mode is desired, this field must be set to 682 * ON or OFF, and {@link CaptureRequest#FLASH_MODE android.flash.mode} set to TORCH.</p> 683 * <p>When set to any of the ON modes, the values chosen by the 684 * camera device auto-exposure routine for the overridden 685 * fields for a given capture will be available in its 686 * CaptureResult.</p> 687 * <p><b>Possible values:</b> 688 * <ul> 689 * <li>{@link #CONTROL_AE_MODE_OFF OFF}</li> 690 * <li>{@link #CONTROL_AE_MODE_ON ON}</li> 691 * <li>{@link #CONTROL_AE_MODE_ON_AUTO_FLASH ON_AUTO_FLASH}</li> 692 * <li>{@link #CONTROL_AE_MODE_ON_ALWAYS_FLASH ON_ALWAYS_FLASH}</li> 693 * <li>{@link #CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE ON_AUTO_FLASH_REDEYE}</li> 694 * </ul></p> 695 * <p><b>Available values for this device:</b><br> 696 * {@link CameraCharacteristics#CONTROL_AE_AVAILABLE_MODES android.control.aeAvailableModes}</p> 697 * <p>This key is available on all devices.</p> 698 * 699 * @see CameraCharacteristics#CONTROL_AE_AVAILABLE_MODES 700 * @see CaptureRequest#CONTROL_MODE 701 * @see CameraCharacteristics#FLASH_INFO_AVAILABLE 702 * @see CaptureRequest#FLASH_MODE 703 * @see CaptureRequest#SENSOR_EXPOSURE_TIME 704 * @see CaptureRequest#SENSOR_FRAME_DURATION 705 * @see CaptureRequest#SENSOR_SENSITIVITY 706 * @see #CONTROL_AE_MODE_OFF 707 * @see #CONTROL_AE_MODE_ON 708 * @see #CONTROL_AE_MODE_ON_AUTO_FLASH 709 * @see #CONTROL_AE_MODE_ON_ALWAYS_FLASH 710 * @see #CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE 711 */ 712 @PublicKey 713 public static final Key<Integer> CONTROL_AE_MODE = 714 new Key<Integer>("android.control.aeMode", int.class); 715 716 /** 717 * <p>List of metering areas to use for auto-exposure adjustment.</p> 718 * <p>Not available if {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AE android.control.maxRegionsAe} is 0. 719 * Otherwise will always be present.</p> 720 * <p>The maximum number of regions supported by the device is determined by the value 721 * of {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AE android.control.maxRegionsAe}.</p> 722 * <p>The coordinate system is based on the active pixel array, 723 * with (0,0) being the top-left pixel in the active pixel array, and 724 * ({@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.width - 1, 725 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.height - 1) being the 726 * bottom-right pixel in the active pixel array.</p> 727 * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight 728 * for every pixel in the area. This means that a large metering area 729 * with the same weight as a smaller area will have more effect in 730 * the metering result. Metering areas can partially overlap and the 731 * camera device will add the weights in the overlap region.</p> 732 * <p>The weights are relative to weights of other exposure metering regions, so if only one 733 * region is used, all non-zero weights will have the same effect. A region with 0 734 * weight is ignored.</p> 735 * <p>If all regions have 0 weight, then no specific metering area needs to be used by the 736 * camera device.</p> 737 * <p>If the metering region is outside the used {@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion} returned in 738 * capture result metadata, the camera device will ignore the sections outside the crop 739 * region and output only the intersection rectangle as the metering region in the result 740 * metadata. If the region is entirely outside the crop region, it will be ignored and 741 * not reported in the result metadata.</p> 742 * <p><b>Units</b>: Pixel coordinates within {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 743 * <p><b>Range of valid values:</b><br> 744 * Coordinates must be between <code>[(0,0), (width, height))</code> of 745 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 746 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 747 * 748 * @see CameraCharacteristics#CONTROL_MAX_REGIONS_AE 749 * @see CaptureRequest#SCALER_CROP_REGION 750 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 751 */ 752 @PublicKey 753 public static final Key<android.hardware.camera2.params.MeteringRectangle[]> CONTROL_AE_REGIONS = 754 new Key<android.hardware.camera2.params.MeteringRectangle[]>("android.control.aeRegions", android.hardware.camera2.params.MeteringRectangle[].class); 755 756 /** 757 * <p>Range over which the auto-exposure routine can 758 * adjust the capture frame rate to maintain good 759 * exposure.</p> 760 * <p>Only constrains auto-exposure (AE) algorithm, not 761 * manual control of {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime} and 762 * {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration}.</p> 763 * <p><b>Units</b>: Frames per second (FPS)</p> 764 * <p><b>Range of valid values:</b><br> 765 * Any of the entries in {@link CameraCharacteristics#CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES android.control.aeAvailableTargetFpsRanges}</p> 766 * <p>This key is available on all devices.</p> 767 * 768 * @see CameraCharacteristics#CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES 769 * @see CaptureRequest#SENSOR_EXPOSURE_TIME 770 * @see CaptureRequest#SENSOR_FRAME_DURATION 771 */ 772 @PublicKey 773 public static final Key<android.util.Range<Integer>> CONTROL_AE_TARGET_FPS_RANGE = 774 new Key<android.util.Range<Integer>>("android.control.aeTargetFpsRange", new TypeReference<android.util.Range<Integer>>() {{ }}); 775 776 /** 777 * <p>Whether the camera device will trigger a precapture 778 * metering sequence when it processes this request.</p> 779 * <p>This entry is normally set to IDLE, or is not 780 * included at all in the request settings. When included and 781 * set to START, the camera device will trigger the auto-exposure (AE) 782 * precapture metering sequence.</p> 783 * <p>When set to CANCEL, the camera device will cancel any active 784 * precapture metering trigger, and return to its initial AE state. 785 * If a precapture metering sequence is already completed, and the camera 786 * device has implicitly locked the AE for subsequent still capture, the 787 * CANCEL trigger will unlock the AE and return to its initial AE state.</p> 788 * <p>The precapture sequence should be triggered before starting a 789 * high-quality still capture for final metering decisions to 790 * be made, and for firing pre-capture flash pulses to estimate 791 * scene brightness and required final capture flash power, when 792 * the flash is enabled.</p> 793 * <p>Normally, this entry should be set to START for only a 794 * single request, and the application should wait until the 795 * sequence completes before starting a new one.</p> 796 * <p>When a precapture metering sequence is finished, the camera device 797 * may lock the auto-exposure routine internally to be able to accurately expose the 798 * subsequent still capture image (<code>{@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} == STILL_CAPTURE</code>). 799 * For this case, the AE may not resume normal scan if no subsequent still capture is 800 * submitted. To ensure that the AE routine restarts normal scan, the application should 801 * submit a request with <code>{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} == true</code>, followed by a request 802 * with <code>{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} == false</code>, if the application decides not to submit a 803 * still capture request after the precapture sequence completes. Alternatively, for 804 * API level 23 or newer devices, the CANCEL can be used to unlock the camera device 805 * internally locked AE if the application doesn't submit a still capture request after 806 * the AE precapture trigger. Note that, the CANCEL was added in API level 23, and must not 807 * be used in devices that have earlier API levels.</p> 808 * <p>The exact effect of auto-exposure (AE) precapture trigger 809 * depends on the current AE mode and state; see 810 * {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} for AE precapture state transition 811 * details.</p> 812 * <p>On LEGACY-level devices, the precapture trigger is not supported; 813 * capturing a high-resolution JPEG image will automatically trigger a 814 * precapture sequence before the high-resolution capture, including 815 * potentially firing a pre-capture flash.</p> 816 * <p>Using the precapture trigger and the auto-focus trigger {@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger} 817 * simultaneously is allowed. However, since these triggers often require cooperation between 818 * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a 819 * focus sweep), the camera device may delay acting on a later trigger until the previous 820 * trigger has been fully handled. This may lead to longer intervals between the trigger and 821 * changes to {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} indicating the start of the precapture sequence, for 822 * example.</p> 823 * <p>If both the precapture and the auto-focus trigger are activated on the same request, then 824 * the camera device will complete them in the optimal order for that device.</p> 825 * <p><b>Possible values:</b> 826 * <ul> 827 * <li>{@link #CONTROL_AE_PRECAPTURE_TRIGGER_IDLE IDLE}</li> 828 * <li>{@link #CONTROL_AE_PRECAPTURE_TRIGGER_START START}</li> 829 * <li>{@link #CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL CANCEL}</li> 830 * </ul></p> 831 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 832 * <p><b>Limited capability</b> - 833 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 834 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 835 * 836 * @see CaptureRequest#CONTROL_AE_LOCK 837 * @see CaptureResult#CONTROL_AE_STATE 838 * @see CaptureRequest#CONTROL_AF_TRIGGER 839 * @see CaptureRequest#CONTROL_CAPTURE_INTENT 840 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 841 * @see #CONTROL_AE_PRECAPTURE_TRIGGER_IDLE 842 * @see #CONTROL_AE_PRECAPTURE_TRIGGER_START 843 * @see #CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL 844 */ 845 @PublicKey 846 public static final Key<Integer> CONTROL_AE_PRECAPTURE_TRIGGER = 847 new Key<Integer>("android.control.aePrecaptureTrigger", int.class); 848 849 /** 850 * <p>Current state of the auto-exposure (AE) algorithm.</p> 851 * <p>Switching between or enabling AE modes ({@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode}) always 852 * resets the AE state to INACTIVE. Similarly, switching between {@link CaptureRequest#CONTROL_MODE android.control.mode}, 853 * or {@link CaptureRequest#CONTROL_SCENE_MODE android.control.sceneMode} if <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} == USE_SCENE_MODE</code> resets all 854 * the algorithm states to INACTIVE.</p> 855 * <p>The camera device can do several state transitions between two results, if it is 856 * allowed by the state transition table. For example: INACTIVE may never actually be 857 * seen in a result.</p> 858 * <p>The state in the result is the state for this image (in sync with this image): if 859 * AE state becomes CONVERGED, then the image data associated with this result should 860 * be good to use.</p> 861 * <p>Below are state transition tables for different AE modes.</p> 862 * <table> 863 * <thead> 864 * <tr> 865 * <th align="center">State</th> 866 * <th align="center">Transition Cause</th> 867 * <th align="center">New State</th> 868 * <th align="center">Notes</th> 869 * </tr> 870 * </thead> 871 * <tbody> 872 * <tr> 873 * <td align="center">INACTIVE</td> 874 * <td align="center"></td> 875 * <td align="center">INACTIVE</td> 876 * <td align="center">Camera device auto exposure algorithm is disabled</td> 877 * </tr> 878 * </tbody> 879 * </table> 880 * <p>When {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is AE_MODE_ON_*:</p> 881 * <table> 882 * <thead> 883 * <tr> 884 * <th align="center">State</th> 885 * <th align="center">Transition Cause</th> 886 * <th align="center">New State</th> 887 * <th align="center">Notes</th> 888 * </tr> 889 * </thead> 890 * <tbody> 891 * <tr> 892 * <td align="center">INACTIVE</td> 893 * <td align="center">Camera device initiates AE scan</td> 894 * <td align="center">SEARCHING</td> 895 * <td align="center">Values changing</td> 896 * </tr> 897 * <tr> 898 * <td align="center">INACTIVE</td> 899 * <td align="center">{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is ON</td> 900 * <td align="center">LOCKED</td> 901 * <td align="center">Values locked</td> 902 * </tr> 903 * <tr> 904 * <td align="center">SEARCHING</td> 905 * <td align="center">Camera device finishes AE scan</td> 906 * <td align="center">CONVERGED</td> 907 * <td align="center">Good values, not changing</td> 908 * </tr> 909 * <tr> 910 * <td align="center">SEARCHING</td> 911 * <td align="center">Camera device finishes AE scan</td> 912 * <td align="center">FLASH_REQUIRED</td> 913 * <td align="center">Converged but too dark w/o flash</td> 914 * </tr> 915 * <tr> 916 * <td align="center">SEARCHING</td> 917 * <td align="center">{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is ON</td> 918 * <td align="center">LOCKED</td> 919 * <td align="center">Values locked</td> 920 * </tr> 921 * <tr> 922 * <td align="center">CONVERGED</td> 923 * <td align="center">Camera device initiates AE scan</td> 924 * <td align="center">SEARCHING</td> 925 * <td align="center">Values changing</td> 926 * </tr> 927 * <tr> 928 * <td align="center">CONVERGED</td> 929 * <td align="center">{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is ON</td> 930 * <td align="center">LOCKED</td> 931 * <td align="center">Values locked</td> 932 * </tr> 933 * <tr> 934 * <td align="center">FLASH_REQUIRED</td> 935 * <td align="center">Camera device initiates AE scan</td> 936 * <td align="center">SEARCHING</td> 937 * <td align="center">Values changing</td> 938 * </tr> 939 * <tr> 940 * <td align="center">FLASH_REQUIRED</td> 941 * <td align="center">{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is ON</td> 942 * <td align="center">LOCKED</td> 943 * <td align="center">Values locked</td> 944 * </tr> 945 * <tr> 946 * <td align="center">LOCKED</td> 947 * <td align="center">{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is OFF</td> 948 * <td align="center">SEARCHING</td> 949 * <td align="center">Values not good after unlock</td> 950 * </tr> 951 * <tr> 952 * <td align="center">LOCKED</td> 953 * <td align="center">{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is OFF</td> 954 * <td align="center">CONVERGED</td> 955 * <td align="center">Values good after unlock</td> 956 * </tr> 957 * <tr> 958 * <td align="center">LOCKED</td> 959 * <td align="center">{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is OFF</td> 960 * <td align="center">FLASH_REQUIRED</td> 961 * <td align="center">Exposure good, but too dark</td> 962 * </tr> 963 * <tr> 964 * <td align="center">PRECAPTURE</td> 965 * <td align="center">Sequence done. {@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is OFF</td> 966 * <td align="center">CONVERGED</td> 967 * <td align="center">Ready for high-quality capture</td> 968 * </tr> 969 * <tr> 970 * <td align="center">PRECAPTURE</td> 971 * <td align="center">Sequence done. {@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} is ON</td> 972 * <td align="center">LOCKED</td> 973 * <td align="center">Ready for high-quality capture</td> 974 * </tr> 975 * <tr> 976 * <td align="center">LOCKED</td> 977 * <td align="center">aeLock is ON and aePrecaptureTrigger is START</td> 978 * <td align="center">LOCKED</td> 979 * <td align="center">Precapture trigger is ignored when AE is already locked</td> 980 * </tr> 981 * <tr> 982 * <td align="center">LOCKED</td> 983 * <td align="center">aeLock is ON and aePrecaptureTrigger is CANCEL</td> 984 * <td align="center">LOCKED</td> 985 * <td align="center">Precapture trigger is ignored when AE is already locked</td> 986 * </tr> 987 * <tr> 988 * <td align="center">Any state (excluding LOCKED)</td> 989 * <td align="center">{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} is START</td> 990 * <td align="center">PRECAPTURE</td> 991 * <td align="center">Start AE precapture metering sequence</td> 992 * </tr> 993 * <tr> 994 * <td align="center">Any state (excluding LOCKED)</td> 995 * <td align="center">{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} is CANCEL</td> 996 * <td align="center">INACTIVE</td> 997 * <td align="center">Currently active precapture metering sequence is canceled</td> 998 * </tr> 999 * </tbody> 1000 * </table> 1001 * <p>For the above table, the camera device may skip reporting any state changes that happen 1002 * without application intervention (i.e. mode switch, trigger, locking). Any state that 1003 * can be skipped in that manner is called a transient state.</p> 1004 * <p>For example, for above AE modes (AE_MODE_ON_*), in addition to the state transitions 1005 * listed in above table, it is also legal for the camera device to skip one or more 1006 * transient states between two results. See below table for examples:</p> 1007 * <table> 1008 * <thead> 1009 * <tr> 1010 * <th align="center">State</th> 1011 * <th align="center">Transition Cause</th> 1012 * <th align="center">New State</th> 1013 * <th align="center">Notes</th> 1014 * </tr> 1015 * </thead> 1016 * <tbody> 1017 * <tr> 1018 * <td align="center">INACTIVE</td> 1019 * <td align="center">Camera device finished AE scan</td> 1020 * <td align="center">CONVERGED</td> 1021 * <td align="center">Values are already good, transient states are skipped by camera device.</td> 1022 * </tr> 1023 * <tr> 1024 * <td align="center">Any state (excluding LOCKED)</td> 1025 * <td align="center">{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} is START, sequence done</td> 1026 * <td align="center">FLASH_REQUIRED</td> 1027 * <td align="center">Converged but too dark w/o flash after a precapture sequence, transient states are skipped by camera device.</td> 1028 * </tr> 1029 * <tr> 1030 * <td align="center">Any state (excluding LOCKED)</td> 1031 * <td align="center">{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} is START, sequence done</td> 1032 * <td align="center">CONVERGED</td> 1033 * <td align="center">Converged after a precapture sequence, transient states are skipped by camera device.</td> 1034 * </tr> 1035 * <tr> 1036 * <td align="center">Any state (excluding LOCKED)</td> 1037 * <td align="center">{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} is CANCEL, converged</td> 1038 * <td align="center">FLASH_REQUIRED</td> 1039 * <td align="center">Converged but too dark w/o flash after a precapture sequence is canceled, transient states are skipped by camera device.</td> 1040 * </tr> 1041 * <tr> 1042 * <td align="center">Any state (excluding LOCKED)</td> 1043 * <td align="center">{@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} is CANCEL, converged</td> 1044 * <td align="center">CONVERGED</td> 1045 * <td align="center">Converged after a precapture sequenceis canceled, transient states are skipped by camera device.</td> 1046 * </tr> 1047 * <tr> 1048 * <td align="center">CONVERGED</td> 1049 * <td align="center">Camera device finished AE scan</td> 1050 * <td align="center">FLASH_REQUIRED</td> 1051 * <td align="center">Converged but too dark w/o flash after a new scan, transient states are skipped by camera device.</td> 1052 * </tr> 1053 * <tr> 1054 * <td align="center">FLASH_REQUIRED</td> 1055 * <td align="center">Camera device finished AE scan</td> 1056 * <td align="center">CONVERGED</td> 1057 * <td align="center">Converged after a new scan, transient states are skipped by camera device.</td> 1058 * </tr> 1059 * </tbody> 1060 * </table> 1061 * <p><b>Possible values:</b> 1062 * <ul> 1063 * <li>{@link #CONTROL_AE_STATE_INACTIVE INACTIVE}</li> 1064 * <li>{@link #CONTROL_AE_STATE_SEARCHING SEARCHING}</li> 1065 * <li>{@link #CONTROL_AE_STATE_CONVERGED CONVERGED}</li> 1066 * <li>{@link #CONTROL_AE_STATE_LOCKED LOCKED}</li> 1067 * <li>{@link #CONTROL_AE_STATE_FLASH_REQUIRED FLASH_REQUIRED}</li> 1068 * <li>{@link #CONTROL_AE_STATE_PRECAPTURE PRECAPTURE}</li> 1069 * </ul></p> 1070 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1071 * <p><b>Limited capability</b> - 1072 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 1073 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 1074 * 1075 * @see CaptureRequest#CONTROL_AE_LOCK 1076 * @see CaptureRequest#CONTROL_AE_MODE 1077 * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER 1078 * @see CaptureRequest#CONTROL_MODE 1079 * @see CaptureRequest#CONTROL_SCENE_MODE 1080 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 1081 * @see #CONTROL_AE_STATE_INACTIVE 1082 * @see #CONTROL_AE_STATE_SEARCHING 1083 * @see #CONTROL_AE_STATE_CONVERGED 1084 * @see #CONTROL_AE_STATE_LOCKED 1085 * @see #CONTROL_AE_STATE_FLASH_REQUIRED 1086 * @see #CONTROL_AE_STATE_PRECAPTURE 1087 */ 1088 @PublicKey 1089 public static final Key<Integer> CONTROL_AE_STATE = 1090 new Key<Integer>("android.control.aeState", int.class); 1091 1092 /** 1093 * <p>Whether auto-focus (AF) is currently enabled, and what 1094 * mode it is set to.</p> 1095 * <p>Only effective if {@link CaptureRequest#CONTROL_MODE android.control.mode} = AUTO and the lens is not fixed focus 1096 * (i.e. <code>{@link CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance} > 0</code>). Also note that 1097 * when {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is OFF, the behavior of AF is device 1098 * dependent. It is recommended to lock AF by using {@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger} before 1099 * setting {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} to OFF, or set AF mode to OFF when AE is OFF.</p> 1100 * <p>If the lens is controlled by the camera device auto-focus algorithm, 1101 * the camera device will report the current AF status in {@link CaptureResult#CONTROL_AF_STATE android.control.afState} 1102 * in result metadata.</p> 1103 * <p><b>Possible values:</b> 1104 * <ul> 1105 * <li>{@link #CONTROL_AF_MODE_OFF OFF}</li> 1106 * <li>{@link #CONTROL_AF_MODE_AUTO AUTO}</li> 1107 * <li>{@link #CONTROL_AF_MODE_MACRO MACRO}</li> 1108 * <li>{@link #CONTROL_AF_MODE_CONTINUOUS_VIDEO CONTINUOUS_VIDEO}</li> 1109 * <li>{@link #CONTROL_AF_MODE_CONTINUOUS_PICTURE CONTINUOUS_PICTURE}</li> 1110 * <li>{@link #CONTROL_AF_MODE_EDOF EDOF}</li> 1111 * </ul></p> 1112 * <p><b>Available values for this device:</b><br> 1113 * {@link CameraCharacteristics#CONTROL_AF_AVAILABLE_MODES android.control.afAvailableModes}</p> 1114 * <p>This key is available on all devices.</p> 1115 * 1116 * @see CaptureRequest#CONTROL_AE_MODE 1117 * @see CameraCharacteristics#CONTROL_AF_AVAILABLE_MODES 1118 * @see CaptureResult#CONTROL_AF_STATE 1119 * @see CaptureRequest#CONTROL_AF_TRIGGER 1120 * @see CaptureRequest#CONTROL_MODE 1121 * @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE 1122 * @see #CONTROL_AF_MODE_OFF 1123 * @see #CONTROL_AF_MODE_AUTO 1124 * @see #CONTROL_AF_MODE_MACRO 1125 * @see #CONTROL_AF_MODE_CONTINUOUS_VIDEO 1126 * @see #CONTROL_AF_MODE_CONTINUOUS_PICTURE 1127 * @see #CONTROL_AF_MODE_EDOF 1128 */ 1129 @PublicKey 1130 public static final Key<Integer> CONTROL_AF_MODE = 1131 new Key<Integer>("android.control.afMode", int.class); 1132 1133 /** 1134 * <p>List of metering areas to use for auto-focus.</p> 1135 * <p>Not available if {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AF android.control.maxRegionsAf} is 0. 1136 * Otherwise will always be present.</p> 1137 * <p>The maximum number of focus areas supported by the device is determined by the value 1138 * of {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AF android.control.maxRegionsAf}.</p> 1139 * <p>The coordinate system is based on the active pixel array, 1140 * with (0,0) being the top-left pixel in the active pixel array, and 1141 * ({@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.width - 1, 1142 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.height - 1) being the 1143 * bottom-right pixel in the active pixel array.</p> 1144 * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight 1145 * for every pixel in the area. This means that a large metering area 1146 * with the same weight as a smaller area will have more effect in 1147 * the metering result. Metering areas can partially overlap and the 1148 * camera device will add the weights in the overlap region.</p> 1149 * <p>The weights are relative to weights of other metering regions, so if only one region 1150 * is used, all non-zero weights will have the same effect. A region with 0 weight is 1151 * ignored.</p> 1152 * <p>If all regions have 0 weight, then no specific metering area needs to be used by the 1153 * camera device.</p> 1154 * <p>If the metering region is outside the used {@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion} returned in 1155 * capture result metadata, the camera device will ignore the sections outside the crop 1156 * region and output only the intersection rectangle as the metering region in the result 1157 * metadata. If the region is entirely outside the crop region, it will be ignored and 1158 * not reported in the result metadata.</p> 1159 * <p><b>Units</b>: Pixel coordinates within {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 1160 * <p><b>Range of valid values:</b><br> 1161 * Coordinates must be between <code>[(0,0), (width, height))</code> of 1162 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 1163 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1164 * 1165 * @see CameraCharacteristics#CONTROL_MAX_REGIONS_AF 1166 * @see CaptureRequest#SCALER_CROP_REGION 1167 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 1168 */ 1169 @PublicKey 1170 public static final Key<android.hardware.camera2.params.MeteringRectangle[]> CONTROL_AF_REGIONS = 1171 new Key<android.hardware.camera2.params.MeteringRectangle[]>("android.control.afRegions", android.hardware.camera2.params.MeteringRectangle[].class); 1172 1173 /** 1174 * <p>Whether the camera device will trigger autofocus for this request.</p> 1175 * <p>This entry is normally set to IDLE, or is not 1176 * included at all in the request settings.</p> 1177 * <p>When included and set to START, the camera device will trigger the 1178 * autofocus algorithm. If autofocus is disabled, this trigger has no effect.</p> 1179 * <p>When set to CANCEL, the camera device will cancel any active trigger, 1180 * and return to its initial AF state.</p> 1181 * <p>Generally, applications should set this entry to START or CANCEL for only a 1182 * single capture, and then return it to IDLE (or not set at all). Specifying 1183 * START for multiple captures in a row means restarting the AF operation over 1184 * and over again.</p> 1185 * <p>See {@link CaptureResult#CONTROL_AF_STATE android.control.afState} for what the trigger means for each AF mode.</p> 1186 * <p>Using the autofocus trigger and the precapture trigger {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} 1187 * simultaneously is allowed. However, since these triggers often require cooperation between 1188 * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a 1189 * focus sweep), the camera device may delay acting on a later trigger until the previous 1190 * trigger has been fully handled. This may lead to longer intervals between the trigger and 1191 * changes to {@link CaptureResult#CONTROL_AF_STATE android.control.afState}, for example.</p> 1192 * <p><b>Possible values:</b> 1193 * <ul> 1194 * <li>{@link #CONTROL_AF_TRIGGER_IDLE IDLE}</li> 1195 * <li>{@link #CONTROL_AF_TRIGGER_START START}</li> 1196 * <li>{@link #CONTROL_AF_TRIGGER_CANCEL CANCEL}</li> 1197 * </ul></p> 1198 * <p>This key is available on all devices.</p> 1199 * 1200 * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER 1201 * @see CaptureResult#CONTROL_AF_STATE 1202 * @see #CONTROL_AF_TRIGGER_IDLE 1203 * @see #CONTROL_AF_TRIGGER_START 1204 * @see #CONTROL_AF_TRIGGER_CANCEL 1205 */ 1206 @PublicKey 1207 public static final Key<Integer> CONTROL_AF_TRIGGER = 1208 new Key<Integer>("android.control.afTrigger", int.class); 1209 1210 /** 1211 * <p>Current state of auto-focus (AF) algorithm.</p> 1212 * <p>Switching between or enabling AF modes ({@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}) always 1213 * resets the AF state to INACTIVE. Similarly, switching between {@link CaptureRequest#CONTROL_MODE android.control.mode}, 1214 * or {@link CaptureRequest#CONTROL_SCENE_MODE android.control.sceneMode} if <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} == USE_SCENE_MODE</code> resets all 1215 * the algorithm states to INACTIVE.</p> 1216 * <p>The camera device can do several state transitions between two results, if it is 1217 * allowed by the state transition table. For example: INACTIVE may never actually be 1218 * seen in a result.</p> 1219 * <p>The state in the result is the state for this image (in sync with this image): if 1220 * AF state becomes FOCUSED, then the image data associated with this result should 1221 * be sharp.</p> 1222 * <p>Below are state transition tables for different AF modes.</p> 1223 * <p>When {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode} is AF_MODE_OFF or AF_MODE_EDOF:</p> 1224 * <table> 1225 * <thead> 1226 * <tr> 1227 * <th align="center">State</th> 1228 * <th align="center">Transition Cause</th> 1229 * <th align="center">New State</th> 1230 * <th align="center">Notes</th> 1231 * </tr> 1232 * </thead> 1233 * <tbody> 1234 * <tr> 1235 * <td align="center">INACTIVE</td> 1236 * <td align="center"></td> 1237 * <td align="center">INACTIVE</td> 1238 * <td align="center">Never changes</td> 1239 * </tr> 1240 * </tbody> 1241 * </table> 1242 * <p>When {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode} is AF_MODE_AUTO or AF_MODE_MACRO:</p> 1243 * <table> 1244 * <thead> 1245 * <tr> 1246 * <th align="center">State</th> 1247 * <th align="center">Transition Cause</th> 1248 * <th align="center">New State</th> 1249 * <th align="center">Notes</th> 1250 * </tr> 1251 * </thead> 1252 * <tbody> 1253 * <tr> 1254 * <td align="center">INACTIVE</td> 1255 * <td align="center">AF_TRIGGER</td> 1256 * <td align="center">ACTIVE_SCAN</td> 1257 * <td align="center">Start AF sweep, Lens now moving</td> 1258 * </tr> 1259 * <tr> 1260 * <td align="center">ACTIVE_SCAN</td> 1261 * <td align="center">AF sweep done</td> 1262 * <td align="center">FOCUSED_LOCKED</td> 1263 * <td align="center">Focused, Lens now locked</td> 1264 * </tr> 1265 * <tr> 1266 * <td align="center">ACTIVE_SCAN</td> 1267 * <td align="center">AF sweep done</td> 1268 * <td align="center">NOT_FOCUSED_LOCKED</td> 1269 * <td align="center">Not focused, Lens now locked</td> 1270 * </tr> 1271 * <tr> 1272 * <td align="center">ACTIVE_SCAN</td> 1273 * <td align="center">AF_CANCEL</td> 1274 * <td align="center">INACTIVE</td> 1275 * <td align="center">Cancel/reset AF, Lens now locked</td> 1276 * </tr> 1277 * <tr> 1278 * <td align="center">FOCUSED_LOCKED</td> 1279 * <td align="center">AF_CANCEL</td> 1280 * <td align="center">INACTIVE</td> 1281 * <td align="center">Cancel/reset AF</td> 1282 * </tr> 1283 * <tr> 1284 * <td align="center">FOCUSED_LOCKED</td> 1285 * <td align="center">AF_TRIGGER</td> 1286 * <td align="center">ACTIVE_SCAN</td> 1287 * <td align="center">Start new sweep, Lens now moving</td> 1288 * </tr> 1289 * <tr> 1290 * <td align="center">NOT_FOCUSED_LOCKED</td> 1291 * <td align="center">AF_CANCEL</td> 1292 * <td align="center">INACTIVE</td> 1293 * <td align="center">Cancel/reset AF</td> 1294 * </tr> 1295 * <tr> 1296 * <td align="center">NOT_FOCUSED_LOCKED</td> 1297 * <td align="center">AF_TRIGGER</td> 1298 * <td align="center">ACTIVE_SCAN</td> 1299 * <td align="center">Start new sweep, Lens now moving</td> 1300 * </tr> 1301 * <tr> 1302 * <td align="center">Any state</td> 1303 * <td align="center">Mode change</td> 1304 * <td align="center">INACTIVE</td> 1305 * <td align="center"></td> 1306 * </tr> 1307 * </tbody> 1308 * </table> 1309 * <p>For the above table, the camera device may skip reporting any state changes that happen 1310 * without application intervention (i.e. mode switch, trigger, locking). Any state that 1311 * can be skipped in that manner is called a transient state.</p> 1312 * <p>For example, for these AF modes (AF_MODE_AUTO and AF_MODE_MACRO), in addition to the 1313 * state transitions listed in above table, it is also legal for the camera device to skip 1314 * one or more transient states between two results. See below table for examples:</p> 1315 * <table> 1316 * <thead> 1317 * <tr> 1318 * <th align="center">State</th> 1319 * <th align="center">Transition Cause</th> 1320 * <th align="center">New State</th> 1321 * <th align="center">Notes</th> 1322 * </tr> 1323 * </thead> 1324 * <tbody> 1325 * <tr> 1326 * <td align="center">INACTIVE</td> 1327 * <td align="center">AF_TRIGGER</td> 1328 * <td align="center">FOCUSED_LOCKED</td> 1329 * <td align="center">Focus is already good or good after a scan, lens is now locked.</td> 1330 * </tr> 1331 * <tr> 1332 * <td align="center">INACTIVE</td> 1333 * <td align="center">AF_TRIGGER</td> 1334 * <td align="center">NOT_FOCUSED_LOCKED</td> 1335 * <td align="center">Focus failed after a scan, lens is now locked.</td> 1336 * </tr> 1337 * <tr> 1338 * <td align="center">FOCUSED_LOCKED</td> 1339 * <td align="center">AF_TRIGGER</td> 1340 * <td align="center">FOCUSED_LOCKED</td> 1341 * <td align="center">Focus is already good or good after a scan, lens is now locked.</td> 1342 * </tr> 1343 * <tr> 1344 * <td align="center">NOT_FOCUSED_LOCKED</td> 1345 * <td align="center">AF_TRIGGER</td> 1346 * <td align="center">FOCUSED_LOCKED</td> 1347 * <td align="center">Focus is good after a scan, lens is not locked.</td> 1348 * </tr> 1349 * </tbody> 1350 * </table> 1351 * <p>When {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode} is AF_MODE_CONTINUOUS_VIDEO:</p> 1352 * <table> 1353 * <thead> 1354 * <tr> 1355 * <th align="center">State</th> 1356 * <th align="center">Transition Cause</th> 1357 * <th align="center">New State</th> 1358 * <th align="center">Notes</th> 1359 * </tr> 1360 * </thead> 1361 * <tbody> 1362 * <tr> 1363 * <td align="center">INACTIVE</td> 1364 * <td align="center">Camera device initiates new scan</td> 1365 * <td align="center">PASSIVE_SCAN</td> 1366 * <td align="center">Start AF scan, Lens now moving</td> 1367 * </tr> 1368 * <tr> 1369 * <td align="center">INACTIVE</td> 1370 * <td align="center">AF_TRIGGER</td> 1371 * <td align="center">NOT_FOCUSED_LOCKED</td> 1372 * <td align="center">AF state query, Lens now locked</td> 1373 * </tr> 1374 * <tr> 1375 * <td align="center">PASSIVE_SCAN</td> 1376 * <td align="center">Camera device completes current scan</td> 1377 * <td align="center">PASSIVE_FOCUSED</td> 1378 * <td align="center">End AF scan, Lens now locked</td> 1379 * </tr> 1380 * <tr> 1381 * <td align="center">PASSIVE_SCAN</td> 1382 * <td align="center">Camera device fails current scan</td> 1383 * <td align="center">PASSIVE_UNFOCUSED</td> 1384 * <td align="center">End AF scan, Lens now locked</td> 1385 * </tr> 1386 * <tr> 1387 * <td align="center">PASSIVE_SCAN</td> 1388 * <td align="center">AF_TRIGGER</td> 1389 * <td align="center">FOCUSED_LOCKED</td> 1390 * <td align="center">Immediate transition, if focus is good. Lens now locked</td> 1391 * </tr> 1392 * <tr> 1393 * <td align="center">PASSIVE_SCAN</td> 1394 * <td align="center">AF_TRIGGER</td> 1395 * <td align="center">NOT_FOCUSED_LOCKED</td> 1396 * <td align="center">Immediate transition, if focus is bad. Lens now locked</td> 1397 * </tr> 1398 * <tr> 1399 * <td align="center">PASSIVE_SCAN</td> 1400 * <td align="center">AF_CANCEL</td> 1401 * <td align="center">INACTIVE</td> 1402 * <td align="center">Reset lens position, Lens now locked</td> 1403 * </tr> 1404 * <tr> 1405 * <td align="center">PASSIVE_FOCUSED</td> 1406 * <td align="center">Camera device initiates new scan</td> 1407 * <td align="center">PASSIVE_SCAN</td> 1408 * <td align="center">Start AF scan, Lens now moving</td> 1409 * </tr> 1410 * <tr> 1411 * <td align="center">PASSIVE_UNFOCUSED</td> 1412 * <td align="center">Camera device initiates new scan</td> 1413 * <td align="center">PASSIVE_SCAN</td> 1414 * <td align="center">Start AF scan, Lens now moving</td> 1415 * </tr> 1416 * <tr> 1417 * <td align="center">PASSIVE_FOCUSED</td> 1418 * <td align="center">AF_TRIGGER</td> 1419 * <td align="center">FOCUSED_LOCKED</td> 1420 * <td align="center">Immediate transition, lens now locked</td> 1421 * </tr> 1422 * <tr> 1423 * <td align="center">PASSIVE_UNFOCUSED</td> 1424 * <td align="center">AF_TRIGGER</td> 1425 * <td align="center">NOT_FOCUSED_LOCKED</td> 1426 * <td align="center">Immediate transition, lens now locked</td> 1427 * </tr> 1428 * <tr> 1429 * <td align="center">FOCUSED_LOCKED</td> 1430 * <td align="center">AF_TRIGGER</td> 1431 * <td align="center">FOCUSED_LOCKED</td> 1432 * <td align="center">No effect</td> 1433 * </tr> 1434 * <tr> 1435 * <td align="center">FOCUSED_LOCKED</td> 1436 * <td align="center">AF_CANCEL</td> 1437 * <td align="center">INACTIVE</td> 1438 * <td align="center">Restart AF scan</td> 1439 * </tr> 1440 * <tr> 1441 * <td align="center">NOT_FOCUSED_LOCKED</td> 1442 * <td align="center">AF_TRIGGER</td> 1443 * <td align="center">NOT_FOCUSED_LOCKED</td> 1444 * <td align="center">No effect</td> 1445 * </tr> 1446 * <tr> 1447 * <td align="center">NOT_FOCUSED_LOCKED</td> 1448 * <td align="center">AF_CANCEL</td> 1449 * <td align="center">INACTIVE</td> 1450 * <td align="center">Restart AF scan</td> 1451 * </tr> 1452 * </tbody> 1453 * </table> 1454 * <p>When {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode} is AF_MODE_CONTINUOUS_PICTURE:</p> 1455 * <table> 1456 * <thead> 1457 * <tr> 1458 * <th align="center">State</th> 1459 * <th align="center">Transition Cause</th> 1460 * <th align="center">New State</th> 1461 * <th align="center">Notes</th> 1462 * </tr> 1463 * </thead> 1464 * <tbody> 1465 * <tr> 1466 * <td align="center">INACTIVE</td> 1467 * <td align="center">Camera device initiates new scan</td> 1468 * <td align="center">PASSIVE_SCAN</td> 1469 * <td align="center">Start AF scan, Lens now moving</td> 1470 * </tr> 1471 * <tr> 1472 * <td align="center">INACTIVE</td> 1473 * <td align="center">AF_TRIGGER</td> 1474 * <td align="center">NOT_FOCUSED_LOCKED</td> 1475 * <td align="center">AF state query, Lens now locked</td> 1476 * </tr> 1477 * <tr> 1478 * <td align="center">PASSIVE_SCAN</td> 1479 * <td align="center">Camera device completes current scan</td> 1480 * <td align="center">PASSIVE_FOCUSED</td> 1481 * <td align="center">End AF scan, Lens now locked</td> 1482 * </tr> 1483 * <tr> 1484 * <td align="center">PASSIVE_SCAN</td> 1485 * <td align="center">Camera device fails current scan</td> 1486 * <td align="center">PASSIVE_UNFOCUSED</td> 1487 * <td align="center">End AF scan, Lens now locked</td> 1488 * </tr> 1489 * <tr> 1490 * <td align="center">PASSIVE_SCAN</td> 1491 * <td align="center">AF_TRIGGER</td> 1492 * <td align="center">FOCUSED_LOCKED</td> 1493 * <td align="center">Eventual transition once the focus is good. Lens now locked</td> 1494 * </tr> 1495 * <tr> 1496 * <td align="center">PASSIVE_SCAN</td> 1497 * <td align="center">AF_TRIGGER</td> 1498 * <td align="center">NOT_FOCUSED_LOCKED</td> 1499 * <td align="center">Eventual transition if cannot find focus. Lens now locked</td> 1500 * </tr> 1501 * <tr> 1502 * <td align="center">PASSIVE_SCAN</td> 1503 * <td align="center">AF_CANCEL</td> 1504 * <td align="center">INACTIVE</td> 1505 * <td align="center">Reset lens position, Lens now locked</td> 1506 * </tr> 1507 * <tr> 1508 * <td align="center">PASSIVE_FOCUSED</td> 1509 * <td align="center">Camera device initiates new scan</td> 1510 * <td align="center">PASSIVE_SCAN</td> 1511 * <td align="center">Start AF scan, Lens now moving</td> 1512 * </tr> 1513 * <tr> 1514 * <td align="center">PASSIVE_UNFOCUSED</td> 1515 * <td align="center">Camera device initiates new scan</td> 1516 * <td align="center">PASSIVE_SCAN</td> 1517 * <td align="center">Start AF scan, Lens now moving</td> 1518 * </tr> 1519 * <tr> 1520 * <td align="center">PASSIVE_FOCUSED</td> 1521 * <td align="center">AF_TRIGGER</td> 1522 * <td align="center">FOCUSED_LOCKED</td> 1523 * <td align="center">Immediate trans. Lens now locked</td> 1524 * </tr> 1525 * <tr> 1526 * <td align="center">PASSIVE_UNFOCUSED</td> 1527 * <td align="center">AF_TRIGGER</td> 1528 * <td align="center">NOT_FOCUSED_LOCKED</td> 1529 * <td align="center">Immediate trans. Lens now locked</td> 1530 * </tr> 1531 * <tr> 1532 * <td align="center">FOCUSED_LOCKED</td> 1533 * <td align="center">AF_TRIGGER</td> 1534 * <td align="center">FOCUSED_LOCKED</td> 1535 * <td align="center">No effect</td> 1536 * </tr> 1537 * <tr> 1538 * <td align="center">FOCUSED_LOCKED</td> 1539 * <td align="center">AF_CANCEL</td> 1540 * <td align="center">INACTIVE</td> 1541 * <td align="center">Restart AF scan</td> 1542 * </tr> 1543 * <tr> 1544 * <td align="center">NOT_FOCUSED_LOCKED</td> 1545 * <td align="center">AF_TRIGGER</td> 1546 * <td align="center">NOT_FOCUSED_LOCKED</td> 1547 * <td align="center">No effect</td> 1548 * </tr> 1549 * <tr> 1550 * <td align="center">NOT_FOCUSED_LOCKED</td> 1551 * <td align="center">AF_CANCEL</td> 1552 * <td align="center">INACTIVE</td> 1553 * <td align="center">Restart AF scan</td> 1554 * </tr> 1555 * </tbody> 1556 * </table> 1557 * <p>When switch between AF_MODE_CONTINUOUS_* (CAF modes) and AF_MODE_AUTO/AF_MODE_MACRO 1558 * (AUTO modes), the initial INACTIVE or PASSIVE_SCAN states may be skipped by the 1559 * camera device. When a trigger is included in a mode switch request, the trigger 1560 * will be evaluated in the context of the new mode in the request. 1561 * See below table for examples:</p> 1562 * <table> 1563 * <thead> 1564 * <tr> 1565 * <th align="center">State</th> 1566 * <th align="center">Transition Cause</th> 1567 * <th align="center">New State</th> 1568 * <th align="center">Notes</th> 1569 * </tr> 1570 * </thead> 1571 * <tbody> 1572 * <tr> 1573 * <td align="center">any state</td> 1574 * <td align="center">CAF-->AUTO mode switch</td> 1575 * <td align="center">INACTIVE</td> 1576 * <td align="center">Mode switch without trigger, initial state must be INACTIVE</td> 1577 * </tr> 1578 * <tr> 1579 * <td align="center">any state</td> 1580 * <td align="center">CAF-->AUTO mode switch with AF_TRIGGER</td> 1581 * <td align="center">trigger-reachable states from INACTIVE</td> 1582 * <td align="center">Mode switch with trigger, INACTIVE is skipped</td> 1583 * </tr> 1584 * <tr> 1585 * <td align="center">any state</td> 1586 * <td align="center">AUTO-->CAF mode switch</td> 1587 * <td align="center">passively reachable states from INACTIVE</td> 1588 * <td align="center">Mode switch without trigger, passive transient state is skipped</td> 1589 * </tr> 1590 * </tbody> 1591 * </table> 1592 * <p><b>Possible values:</b> 1593 * <ul> 1594 * <li>{@link #CONTROL_AF_STATE_INACTIVE INACTIVE}</li> 1595 * <li>{@link #CONTROL_AF_STATE_PASSIVE_SCAN PASSIVE_SCAN}</li> 1596 * <li>{@link #CONTROL_AF_STATE_PASSIVE_FOCUSED PASSIVE_FOCUSED}</li> 1597 * <li>{@link #CONTROL_AF_STATE_ACTIVE_SCAN ACTIVE_SCAN}</li> 1598 * <li>{@link #CONTROL_AF_STATE_FOCUSED_LOCKED FOCUSED_LOCKED}</li> 1599 * <li>{@link #CONTROL_AF_STATE_NOT_FOCUSED_LOCKED NOT_FOCUSED_LOCKED}</li> 1600 * <li>{@link #CONTROL_AF_STATE_PASSIVE_UNFOCUSED PASSIVE_UNFOCUSED}</li> 1601 * </ul></p> 1602 * <p>This key is available on all devices.</p> 1603 * 1604 * @see CaptureRequest#CONTROL_AF_MODE 1605 * @see CaptureRequest#CONTROL_MODE 1606 * @see CaptureRequest#CONTROL_SCENE_MODE 1607 * @see #CONTROL_AF_STATE_INACTIVE 1608 * @see #CONTROL_AF_STATE_PASSIVE_SCAN 1609 * @see #CONTROL_AF_STATE_PASSIVE_FOCUSED 1610 * @see #CONTROL_AF_STATE_ACTIVE_SCAN 1611 * @see #CONTROL_AF_STATE_FOCUSED_LOCKED 1612 * @see #CONTROL_AF_STATE_NOT_FOCUSED_LOCKED 1613 * @see #CONTROL_AF_STATE_PASSIVE_UNFOCUSED 1614 */ 1615 @PublicKey 1616 public static final Key<Integer> CONTROL_AF_STATE = 1617 new Key<Integer>("android.control.afState", int.class); 1618 1619 /** 1620 * <p>Whether auto-white balance (AWB) is currently locked to its 1621 * latest calculated values.</p> 1622 * <p>When set to <code>true</code> (ON), the AWB algorithm is locked to its latest parameters, 1623 * and will not change color balance settings until the lock is set to <code>false</code> (OFF).</p> 1624 * <p>Since the camera device has a pipeline of in-flight requests, the settings that 1625 * get locked do not necessarily correspond to the settings that were present in the 1626 * latest capture result received from the camera device, since additional captures 1627 * and AWB updates may have occurred even before the result was sent out. If an 1628 * application is switching between automatic and manual control and wishes to eliminate 1629 * any flicker during the switch, the following procedure is recommended:</p> 1630 * <ol> 1631 * <li>Starting in auto-AWB mode:</li> 1632 * <li>Lock AWB</li> 1633 * <li>Wait for the first result to be output that has the AWB locked</li> 1634 * <li>Copy AWB settings from that result into a request, set the request to manual AWB</li> 1635 * <li>Submit the capture request, proceed to run manual AWB as desired.</li> 1636 * </ol> 1637 * <p>Note that AWB lock is only meaningful when 1638 * {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} is in the AUTO mode; in other modes, 1639 * AWB is already fixed to a specific setting.</p> 1640 * <p>Some LEGACY devices may not support ON; the value is then overridden to OFF.</p> 1641 * <p>This key is available on all devices.</p> 1642 * 1643 * @see CaptureRequest#CONTROL_AWB_MODE 1644 */ 1645 @PublicKey 1646 public static final Key<Boolean> CONTROL_AWB_LOCK = 1647 new Key<Boolean>("android.control.awbLock", boolean.class); 1648 1649 /** 1650 * <p>Whether auto-white balance (AWB) is currently setting the color 1651 * transform fields, and what its illumination target 1652 * is.</p> 1653 * <p>This control is only effective if {@link CaptureRequest#CONTROL_MODE android.control.mode} is AUTO.</p> 1654 * <p>When set to the ON mode, the camera device's auto-white balance 1655 * routine is enabled, overriding the application's selected 1656 * {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}, {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} and 1657 * {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode}. Note that when {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} 1658 * is OFF, the behavior of AWB is device dependent. It is recommened to 1659 * also set AWB mode to OFF or lock AWB by using {@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock} before 1660 * setting AE mode to OFF.</p> 1661 * <p>When set to the OFF mode, the camera device's auto-white balance 1662 * routine is disabled. The application manually controls the white 1663 * balance by {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}, {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} 1664 * and {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode}.</p> 1665 * <p>When set to any other modes, the camera device's auto-white 1666 * balance routine is disabled. The camera device uses each 1667 * particular illumination target for white balance 1668 * adjustment. The application's values for 1669 * {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}, 1670 * {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} and 1671 * {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} are ignored.</p> 1672 * <p><b>Possible values:</b> 1673 * <ul> 1674 * <li>{@link #CONTROL_AWB_MODE_OFF OFF}</li> 1675 * <li>{@link #CONTROL_AWB_MODE_AUTO AUTO}</li> 1676 * <li>{@link #CONTROL_AWB_MODE_INCANDESCENT INCANDESCENT}</li> 1677 * <li>{@link #CONTROL_AWB_MODE_FLUORESCENT FLUORESCENT}</li> 1678 * <li>{@link #CONTROL_AWB_MODE_WARM_FLUORESCENT WARM_FLUORESCENT}</li> 1679 * <li>{@link #CONTROL_AWB_MODE_DAYLIGHT DAYLIGHT}</li> 1680 * <li>{@link #CONTROL_AWB_MODE_CLOUDY_DAYLIGHT CLOUDY_DAYLIGHT}</li> 1681 * <li>{@link #CONTROL_AWB_MODE_TWILIGHT TWILIGHT}</li> 1682 * <li>{@link #CONTROL_AWB_MODE_SHADE SHADE}</li> 1683 * </ul></p> 1684 * <p><b>Available values for this device:</b><br> 1685 * {@link CameraCharacteristics#CONTROL_AWB_AVAILABLE_MODES android.control.awbAvailableModes}</p> 1686 * <p>This key is available on all devices.</p> 1687 * 1688 * @see CaptureRequest#COLOR_CORRECTION_GAINS 1689 * @see CaptureRequest#COLOR_CORRECTION_MODE 1690 * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM 1691 * @see CaptureRequest#CONTROL_AE_MODE 1692 * @see CameraCharacteristics#CONTROL_AWB_AVAILABLE_MODES 1693 * @see CaptureRequest#CONTROL_AWB_LOCK 1694 * @see CaptureRequest#CONTROL_MODE 1695 * @see #CONTROL_AWB_MODE_OFF 1696 * @see #CONTROL_AWB_MODE_AUTO 1697 * @see #CONTROL_AWB_MODE_INCANDESCENT 1698 * @see #CONTROL_AWB_MODE_FLUORESCENT 1699 * @see #CONTROL_AWB_MODE_WARM_FLUORESCENT 1700 * @see #CONTROL_AWB_MODE_DAYLIGHT 1701 * @see #CONTROL_AWB_MODE_CLOUDY_DAYLIGHT 1702 * @see #CONTROL_AWB_MODE_TWILIGHT 1703 * @see #CONTROL_AWB_MODE_SHADE 1704 */ 1705 @PublicKey 1706 public static final Key<Integer> CONTROL_AWB_MODE = 1707 new Key<Integer>("android.control.awbMode", int.class); 1708 1709 /** 1710 * <p>List of metering areas to use for auto-white-balance illuminant 1711 * estimation.</p> 1712 * <p>Not available if {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AWB android.control.maxRegionsAwb} is 0. 1713 * Otherwise will always be present.</p> 1714 * <p>The maximum number of regions supported by the device is determined by the value 1715 * of {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AWB android.control.maxRegionsAwb}.</p> 1716 * <p>The coordinate system is based on the active pixel array, 1717 * with (0,0) being the top-left pixel in the active pixel array, and 1718 * ({@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.width - 1, 1719 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.height - 1) being the 1720 * bottom-right pixel in the active pixel array.</p> 1721 * <p>The weight must range from 0 to 1000, and represents a weight 1722 * for every pixel in the area. This means that a large metering area 1723 * with the same weight as a smaller area will have more effect in 1724 * the metering result. Metering areas can partially overlap and the 1725 * camera device will add the weights in the overlap region.</p> 1726 * <p>The weights are relative to weights of other white balance metering regions, so if 1727 * only one region is used, all non-zero weights will have the same effect. A region with 1728 * 0 weight is ignored.</p> 1729 * <p>If all regions have 0 weight, then no specific metering area needs to be used by the 1730 * camera device.</p> 1731 * <p>If the metering region is outside the used {@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion} returned in 1732 * capture result metadata, the camera device will ignore the sections outside the crop 1733 * region and output only the intersection rectangle as the metering region in the result 1734 * metadata. If the region is entirely outside the crop region, it will be ignored and 1735 * not reported in the result metadata.</p> 1736 * <p><b>Units</b>: Pixel coordinates within {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 1737 * <p><b>Range of valid values:</b><br> 1738 * Coordinates must be between <code>[(0,0), (width, height))</code> of 1739 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 1740 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1741 * 1742 * @see CameraCharacteristics#CONTROL_MAX_REGIONS_AWB 1743 * @see CaptureRequest#SCALER_CROP_REGION 1744 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 1745 */ 1746 @PublicKey 1747 public static final Key<android.hardware.camera2.params.MeteringRectangle[]> CONTROL_AWB_REGIONS = 1748 new Key<android.hardware.camera2.params.MeteringRectangle[]>("android.control.awbRegions", android.hardware.camera2.params.MeteringRectangle[].class); 1749 1750 /** 1751 * <p>Information to the camera device 3A (auto-exposure, 1752 * auto-focus, auto-white balance) routines about the purpose 1753 * of this capture, to help the camera device to decide optimal 3A 1754 * strategy.</p> 1755 * <p>This control (except for MANUAL) is only effective if 1756 * <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} != OFF</code> and any 3A routine is active.</p> 1757 * <p>ZERO_SHUTTER_LAG will be supported if {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} 1758 * contains PRIVATE_REPROCESSING or YUV_REPROCESSING. MANUAL will be supported if 1759 * {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} contains MANUAL_SENSOR. Other intent values are 1760 * always supported.</p> 1761 * <p><b>Possible values:</b> 1762 * <ul> 1763 * <li>{@link #CONTROL_CAPTURE_INTENT_CUSTOM CUSTOM}</li> 1764 * <li>{@link #CONTROL_CAPTURE_INTENT_PREVIEW PREVIEW}</li> 1765 * <li>{@link #CONTROL_CAPTURE_INTENT_STILL_CAPTURE STILL_CAPTURE}</li> 1766 * <li>{@link #CONTROL_CAPTURE_INTENT_VIDEO_RECORD VIDEO_RECORD}</li> 1767 * <li>{@link #CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT VIDEO_SNAPSHOT}</li> 1768 * <li>{@link #CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG ZERO_SHUTTER_LAG}</li> 1769 * <li>{@link #CONTROL_CAPTURE_INTENT_MANUAL MANUAL}</li> 1770 * </ul></p> 1771 * <p>This key is available on all devices.</p> 1772 * 1773 * @see CaptureRequest#CONTROL_MODE 1774 * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES 1775 * @see #CONTROL_CAPTURE_INTENT_CUSTOM 1776 * @see #CONTROL_CAPTURE_INTENT_PREVIEW 1777 * @see #CONTROL_CAPTURE_INTENT_STILL_CAPTURE 1778 * @see #CONTROL_CAPTURE_INTENT_VIDEO_RECORD 1779 * @see #CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT 1780 * @see #CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG 1781 * @see #CONTROL_CAPTURE_INTENT_MANUAL 1782 */ 1783 @PublicKey 1784 public static final Key<Integer> CONTROL_CAPTURE_INTENT = 1785 new Key<Integer>("android.control.captureIntent", int.class); 1786 1787 /** 1788 * <p>Current state of auto-white balance (AWB) algorithm.</p> 1789 * <p>Switching between or enabling AWB modes ({@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode}) always 1790 * resets the AWB state to INACTIVE. Similarly, switching between {@link CaptureRequest#CONTROL_MODE android.control.mode}, 1791 * or {@link CaptureRequest#CONTROL_SCENE_MODE android.control.sceneMode} if <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} == USE_SCENE_MODE</code> resets all 1792 * the algorithm states to INACTIVE.</p> 1793 * <p>The camera device can do several state transitions between two results, if it is 1794 * allowed by the state transition table. So INACTIVE may never actually be seen in 1795 * a result.</p> 1796 * <p>The state in the result is the state for this image (in sync with this image): if 1797 * AWB state becomes CONVERGED, then the image data associated with this result should 1798 * be good to use.</p> 1799 * <p>Below are state transition tables for different AWB modes.</p> 1800 * <p>When <code>{@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} != AWB_MODE_AUTO</code>:</p> 1801 * <table> 1802 * <thead> 1803 * <tr> 1804 * <th align="center">State</th> 1805 * <th align="center">Transition Cause</th> 1806 * <th align="center">New State</th> 1807 * <th align="center">Notes</th> 1808 * </tr> 1809 * </thead> 1810 * <tbody> 1811 * <tr> 1812 * <td align="center">INACTIVE</td> 1813 * <td align="center"></td> 1814 * <td align="center">INACTIVE</td> 1815 * <td align="center">Camera device auto white balance algorithm is disabled</td> 1816 * </tr> 1817 * </tbody> 1818 * </table> 1819 * <p>When {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} is AWB_MODE_AUTO:</p> 1820 * <table> 1821 * <thead> 1822 * <tr> 1823 * <th align="center">State</th> 1824 * <th align="center">Transition Cause</th> 1825 * <th align="center">New State</th> 1826 * <th align="center">Notes</th> 1827 * </tr> 1828 * </thead> 1829 * <tbody> 1830 * <tr> 1831 * <td align="center">INACTIVE</td> 1832 * <td align="center">Camera device initiates AWB scan</td> 1833 * <td align="center">SEARCHING</td> 1834 * <td align="center">Values changing</td> 1835 * </tr> 1836 * <tr> 1837 * <td align="center">INACTIVE</td> 1838 * <td align="center">{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock} is ON</td> 1839 * <td align="center">LOCKED</td> 1840 * <td align="center">Values locked</td> 1841 * </tr> 1842 * <tr> 1843 * <td align="center">SEARCHING</td> 1844 * <td align="center">Camera device finishes AWB scan</td> 1845 * <td align="center">CONVERGED</td> 1846 * <td align="center">Good values, not changing</td> 1847 * </tr> 1848 * <tr> 1849 * <td align="center">SEARCHING</td> 1850 * <td align="center">{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock} is ON</td> 1851 * <td align="center">LOCKED</td> 1852 * <td align="center">Values locked</td> 1853 * </tr> 1854 * <tr> 1855 * <td align="center">CONVERGED</td> 1856 * <td align="center">Camera device initiates AWB scan</td> 1857 * <td align="center">SEARCHING</td> 1858 * <td align="center">Values changing</td> 1859 * </tr> 1860 * <tr> 1861 * <td align="center">CONVERGED</td> 1862 * <td align="center">{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock} is ON</td> 1863 * <td align="center">LOCKED</td> 1864 * <td align="center">Values locked</td> 1865 * </tr> 1866 * <tr> 1867 * <td align="center">LOCKED</td> 1868 * <td align="center">{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock} is OFF</td> 1869 * <td align="center">SEARCHING</td> 1870 * <td align="center">Values not good after unlock</td> 1871 * </tr> 1872 * </tbody> 1873 * </table> 1874 * <p>For the above table, the camera device may skip reporting any state changes that happen 1875 * without application intervention (i.e. mode switch, trigger, locking). Any state that 1876 * can be skipped in that manner is called a transient state.</p> 1877 * <p>For example, for this AWB mode (AWB_MODE_AUTO), in addition to the state transitions 1878 * listed in above table, it is also legal for the camera device to skip one or more 1879 * transient states between two results. See below table for examples:</p> 1880 * <table> 1881 * <thead> 1882 * <tr> 1883 * <th align="center">State</th> 1884 * <th align="center">Transition Cause</th> 1885 * <th align="center">New State</th> 1886 * <th align="center">Notes</th> 1887 * </tr> 1888 * </thead> 1889 * <tbody> 1890 * <tr> 1891 * <td align="center">INACTIVE</td> 1892 * <td align="center">Camera device finished AWB scan</td> 1893 * <td align="center">CONVERGED</td> 1894 * <td align="center">Values are already good, transient states are skipped by camera device.</td> 1895 * </tr> 1896 * <tr> 1897 * <td align="center">LOCKED</td> 1898 * <td align="center">{@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock} is OFF</td> 1899 * <td align="center">CONVERGED</td> 1900 * <td align="center">Values good after unlock, transient states are skipped by camera device.</td> 1901 * </tr> 1902 * </tbody> 1903 * </table> 1904 * <p><b>Possible values:</b> 1905 * <ul> 1906 * <li>{@link #CONTROL_AWB_STATE_INACTIVE INACTIVE}</li> 1907 * <li>{@link #CONTROL_AWB_STATE_SEARCHING SEARCHING}</li> 1908 * <li>{@link #CONTROL_AWB_STATE_CONVERGED CONVERGED}</li> 1909 * <li>{@link #CONTROL_AWB_STATE_LOCKED LOCKED}</li> 1910 * </ul></p> 1911 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1912 * <p><b>Limited capability</b> - 1913 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 1914 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 1915 * 1916 * @see CaptureRequest#CONTROL_AWB_LOCK 1917 * @see CaptureRequest#CONTROL_AWB_MODE 1918 * @see CaptureRequest#CONTROL_MODE 1919 * @see CaptureRequest#CONTROL_SCENE_MODE 1920 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 1921 * @see #CONTROL_AWB_STATE_INACTIVE 1922 * @see #CONTROL_AWB_STATE_SEARCHING 1923 * @see #CONTROL_AWB_STATE_CONVERGED 1924 * @see #CONTROL_AWB_STATE_LOCKED 1925 */ 1926 @PublicKey 1927 public static final Key<Integer> CONTROL_AWB_STATE = 1928 new Key<Integer>("android.control.awbState", int.class); 1929 1930 /** 1931 * <p>A special color effect to apply.</p> 1932 * <p>When this mode is set, a color effect will be applied 1933 * to images produced by the camera device. The interpretation 1934 * and implementation of these color effects is left to the 1935 * implementor of the camera device, and should not be 1936 * depended on to be consistent (or present) across all 1937 * devices.</p> 1938 * <p><b>Possible values:</b> 1939 * <ul> 1940 * <li>{@link #CONTROL_EFFECT_MODE_OFF OFF}</li> 1941 * <li>{@link #CONTROL_EFFECT_MODE_MONO MONO}</li> 1942 * <li>{@link #CONTROL_EFFECT_MODE_NEGATIVE NEGATIVE}</li> 1943 * <li>{@link #CONTROL_EFFECT_MODE_SOLARIZE SOLARIZE}</li> 1944 * <li>{@link #CONTROL_EFFECT_MODE_SEPIA SEPIA}</li> 1945 * <li>{@link #CONTROL_EFFECT_MODE_POSTERIZE POSTERIZE}</li> 1946 * <li>{@link #CONTROL_EFFECT_MODE_WHITEBOARD WHITEBOARD}</li> 1947 * <li>{@link #CONTROL_EFFECT_MODE_BLACKBOARD BLACKBOARD}</li> 1948 * <li>{@link #CONTROL_EFFECT_MODE_AQUA AQUA}</li> 1949 * </ul></p> 1950 * <p><b>Available values for this device:</b><br> 1951 * {@link CameraCharacteristics#CONTROL_AVAILABLE_EFFECTS android.control.availableEffects}</p> 1952 * <p>This key is available on all devices.</p> 1953 * 1954 * @see CameraCharacteristics#CONTROL_AVAILABLE_EFFECTS 1955 * @see #CONTROL_EFFECT_MODE_OFF 1956 * @see #CONTROL_EFFECT_MODE_MONO 1957 * @see #CONTROL_EFFECT_MODE_NEGATIVE 1958 * @see #CONTROL_EFFECT_MODE_SOLARIZE 1959 * @see #CONTROL_EFFECT_MODE_SEPIA 1960 * @see #CONTROL_EFFECT_MODE_POSTERIZE 1961 * @see #CONTROL_EFFECT_MODE_WHITEBOARD 1962 * @see #CONTROL_EFFECT_MODE_BLACKBOARD 1963 * @see #CONTROL_EFFECT_MODE_AQUA 1964 */ 1965 @PublicKey 1966 public static final Key<Integer> CONTROL_EFFECT_MODE = 1967 new Key<Integer>("android.control.effectMode", int.class); 1968 1969 /** 1970 * <p>Overall mode of 3A (auto-exposure, auto-white-balance, auto-focus) control 1971 * routines.</p> 1972 * <p>This is a top-level 3A control switch. When set to OFF, all 3A control 1973 * by the camera device is disabled. The application must set the fields for 1974 * capture parameters itself.</p> 1975 * <p>When set to AUTO, the individual algorithm controls in 1976 * android.control.* are in effect, such as {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}.</p> 1977 * <p>When set to USE_SCENE_MODE, the individual controls in 1978 * android.control.* are mostly disabled, and the camera device implements 1979 * one of the scene mode settings (such as ACTION, SUNSET, or PARTY) 1980 * as it wishes. The camera device scene mode 3A settings are provided by 1981 * {@link android.hardware.camera2.CaptureResult capture results}.</p> 1982 * <p>When set to OFF_KEEP_STATE, it is similar to OFF mode, the only difference 1983 * is that this frame will not be used by camera device background 3A statistics 1984 * update, as if this frame is never captured. This mode can be used in the scenario 1985 * where the application doesn't want a 3A manual control capture to affect 1986 * the subsequent auto 3A capture results.</p> 1987 * <p><b>Possible values:</b> 1988 * <ul> 1989 * <li>{@link #CONTROL_MODE_OFF OFF}</li> 1990 * <li>{@link #CONTROL_MODE_AUTO AUTO}</li> 1991 * <li>{@link #CONTROL_MODE_USE_SCENE_MODE USE_SCENE_MODE}</li> 1992 * <li>{@link #CONTROL_MODE_OFF_KEEP_STATE OFF_KEEP_STATE}</li> 1993 * </ul></p> 1994 * <p><b>Available values for this device:</b><br> 1995 * {@link CameraCharacteristics#CONTROL_AVAILABLE_MODES android.control.availableModes}</p> 1996 * <p>This key is available on all devices.</p> 1997 * 1998 * @see CaptureRequest#CONTROL_AF_MODE 1999 * @see CameraCharacteristics#CONTROL_AVAILABLE_MODES 2000 * @see #CONTROL_MODE_OFF 2001 * @see #CONTROL_MODE_AUTO 2002 * @see #CONTROL_MODE_USE_SCENE_MODE 2003 * @see #CONTROL_MODE_OFF_KEEP_STATE 2004 */ 2005 @PublicKey 2006 public static final Key<Integer> CONTROL_MODE = 2007 new Key<Integer>("android.control.mode", int.class); 2008 2009 /** 2010 * <p>Control for which scene mode is currently active.</p> 2011 * <p>Scene modes are custom camera modes optimized for a certain set of conditions and 2012 * capture settings.</p> 2013 * <p>This is the mode that that is active when 2014 * <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} == USE_SCENE_MODE</code>. Aside from FACE_PRIORITY, these modes will 2015 * 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} 2016 * while in use.</p> 2017 * <p>The interpretation and implementation of these scene modes is left 2018 * to the implementor of the camera device. Their behavior will not be 2019 * consistent across all devices, and any given device may only implement 2020 * a subset of these modes.</p> 2021 * <p><b>Possible values:</b> 2022 * <ul> 2023 * <li>{@link #CONTROL_SCENE_MODE_DISABLED DISABLED}</li> 2024 * <li>{@link #CONTROL_SCENE_MODE_FACE_PRIORITY FACE_PRIORITY}</li> 2025 * <li>{@link #CONTROL_SCENE_MODE_ACTION ACTION}</li> 2026 * <li>{@link #CONTROL_SCENE_MODE_PORTRAIT PORTRAIT}</li> 2027 * <li>{@link #CONTROL_SCENE_MODE_LANDSCAPE LANDSCAPE}</li> 2028 * <li>{@link #CONTROL_SCENE_MODE_NIGHT NIGHT}</li> 2029 * <li>{@link #CONTROL_SCENE_MODE_NIGHT_PORTRAIT NIGHT_PORTRAIT}</li> 2030 * <li>{@link #CONTROL_SCENE_MODE_THEATRE THEATRE}</li> 2031 * <li>{@link #CONTROL_SCENE_MODE_BEACH BEACH}</li> 2032 * <li>{@link #CONTROL_SCENE_MODE_SNOW SNOW}</li> 2033 * <li>{@link #CONTROL_SCENE_MODE_SUNSET SUNSET}</li> 2034 * <li>{@link #CONTROL_SCENE_MODE_STEADYPHOTO STEADYPHOTO}</li> 2035 * <li>{@link #CONTROL_SCENE_MODE_FIREWORKS FIREWORKS}</li> 2036 * <li>{@link #CONTROL_SCENE_MODE_SPORTS SPORTS}</li> 2037 * <li>{@link #CONTROL_SCENE_MODE_PARTY PARTY}</li> 2038 * <li>{@link #CONTROL_SCENE_MODE_CANDLELIGHT CANDLELIGHT}</li> 2039 * <li>{@link #CONTROL_SCENE_MODE_BARCODE BARCODE}</li> 2040 * <li>{@link #CONTROL_SCENE_MODE_HIGH_SPEED_VIDEO HIGH_SPEED_VIDEO}</li> 2041 * <li>{@link #CONTROL_SCENE_MODE_HDR HDR}</li> 2042 * </ul></p> 2043 * <p><b>Available values for this device:</b><br> 2044 * {@link CameraCharacteristics#CONTROL_AVAILABLE_SCENE_MODES android.control.availableSceneModes}</p> 2045 * <p>This key is available on all devices.</p> 2046 * 2047 * @see CaptureRequest#CONTROL_AE_MODE 2048 * @see CaptureRequest#CONTROL_AF_MODE 2049 * @see CameraCharacteristics#CONTROL_AVAILABLE_SCENE_MODES 2050 * @see CaptureRequest#CONTROL_AWB_MODE 2051 * @see CaptureRequest#CONTROL_MODE 2052 * @see #CONTROL_SCENE_MODE_DISABLED 2053 * @see #CONTROL_SCENE_MODE_FACE_PRIORITY 2054 * @see #CONTROL_SCENE_MODE_ACTION 2055 * @see #CONTROL_SCENE_MODE_PORTRAIT 2056 * @see #CONTROL_SCENE_MODE_LANDSCAPE 2057 * @see #CONTROL_SCENE_MODE_NIGHT 2058 * @see #CONTROL_SCENE_MODE_NIGHT_PORTRAIT 2059 * @see #CONTROL_SCENE_MODE_THEATRE 2060 * @see #CONTROL_SCENE_MODE_BEACH 2061 * @see #CONTROL_SCENE_MODE_SNOW 2062 * @see #CONTROL_SCENE_MODE_SUNSET 2063 * @see #CONTROL_SCENE_MODE_STEADYPHOTO 2064 * @see #CONTROL_SCENE_MODE_FIREWORKS 2065 * @see #CONTROL_SCENE_MODE_SPORTS 2066 * @see #CONTROL_SCENE_MODE_PARTY 2067 * @see #CONTROL_SCENE_MODE_CANDLELIGHT 2068 * @see #CONTROL_SCENE_MODE_BARCODE 2069 * @see #CONTROL_SCENE_MODE_HIGH_SPEED_VIDEO 2070 * @see #CONTROL_SCENE_MODE_HDR 2071 */ 2072 @PublicKey 2073 public static final Key<Integer> CONTROL_SCENE_MODE = 2074 new Key<Integer>("android.control.sceneMode", int.class); 2075 2076 /** 2077 * <p>Whether video stabilization is 2078 * active.</p> 2079 * <p>Video stabilization automatically warps images from 2080 * the camera in order to stabilize motion between consecutive frames.</p> 2081 * <p>If enabled, video stabilization can modify the 2082 * {@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion} to keep the video stream stabilized.</p> 2083 * <p>Switching between different video stabilization modes may take several 2084 * frames to initialize, the camera device will report the current mode 2085 * in capture result metadata. For example, When "ON" mode is requested, 2086 * the video stabilization modes in the first several capture results may 2087 * still be "OFF", and it will become "ON" when the initialization is 2088 * done.</p> 2089 * <p>In addition, not all recording sizes or frame rates may be supported for 2090 * stabilization by a device that reports stabilization support. It is guaranteed 2091 * that an output targeting a MediaRecorder or MediaCodec will be stabilized if 2092 * the recording resolution is less than or equal to 1920 x 1080 (width less than 2093 * or equal to 1920, height less than or equal to 1080), and the recording 2094 * frame rate is less than or equal to 30fps. At other sizes, the CaptureResult 2095 * {@link CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE android.control.videoStabilizationMode} field will return 2096 * OFF if the recording output is not stabilized, or if there are no output 2097 * Surface types that can be stabilized.</p> 2098 * <p>If a camera device supports both this mode and OIS 2099 * ({@link CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE android.lens.opticalStabilizationMode}), turning both modes on may 2100 * produce undesirable interaction, so it is recommended not to enable 2101 * both at the same time.</p> 2102 * <p><b>Possible values:</b> 2103 * <ul> 2104 * <li>{@link #CONTROL_VIDEO_STABILIZATION_MODE_OFF OFF}</li> 2105 * <li>{@link #CONTROL_VIDEO_STABILIZATION_MODE_ON ON}</li> 2106 * </ul></p> 2107 * <p>This key is available on all devices.</p> 2108 * 2109 * @see CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE 2110 * @see CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE 2111 * @see CaptureRequest#SCALER_CROP_REGION 2112 * @see #CONTROL_VIDEO_STABILIZATION_MODE_OFF 2113 * @see #CONTROL_VIDEO_STABILIZATION_MODE_ON 2114 */ 2115 @PublicKey 2116 public static final Key<Integer> CONTROL_VIDEO_STABILIZATION_MODE = 2117 new Key<Integer>("android.control.videoStabilizationMode", int.class); 2118 2119 /** 2120 * <p>The amount of additional sensitivity boost applied to output images 2121 * after RAW sensor data is captured.</p> 2122 * <p>Some camera devices support additional digital sensitivity boosting in the 2123 * camera processing pipeline after sensor RAW image is captured. 2124 * Such a boost will be applied to YUV/JPEG format output images but will not 2125 * have effect on RAW output formats like RAW_SENSOR, RAW10, RAW12 or RAW_OPAQUE.</p> 2126 * <p>This key will be <code>null</code> for devices that do not support any RAW format 2127 * outputs. For devices that do support RAW format outputs, this key will always 2128 * present, and if a device does not support post RAW sensitivity boost, it will 2129 * list <code>100</code> in this key.</p> 2130 * <p>If the camera device cannot apply the exact boost requested, it will reduce the 2131 * boost to the nearest supported value. 2132 * The final boost value used will be available in the output capture result.</p> 2133 * <p>For devices that support post RAW sensitivity boost, the YUV/JPEG output images 2134 * of such device will have the total sensitivity of 2135 * <code>{@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity} * {@link CaptureRequest#CONTROL_POST_RAW_SENSITIVITY_BOOST android.control.postRawSensitivityBoost} / 100</code> 2136 * The sensitivity of RAW format images will always be <code>{@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}</code></p> 2137 * <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 2138 * OFF; otherwise the auto-exposure algorithm will override this value.</p> 2139 * <p><b>Units</b>: ISO arithmetic units, the same as {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}</p> 2140 * <p><b>Range of valid values:</b><br> 2141 * {@link CameraCharacteristics#CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE android.control.postRawSensitivityBoostRange}</p> 2142 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2143 * 2144 * @see CaptureRequest#CONTROL_AE_MODE 2145 * @see CaptureRequest#CONTROL_MODE 2146 * @see CaptureRequest#CONTROL_POST_RAW_SENSITIVITY_BOOST 2147 * @see CameraCharacteristics#CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE 2148 * @see CaptureRequest#SENSOR_SENSITIVITY 2149 */ 2150 @PublicKey 2151 public static final Key<Integer> CONTROL_POST_RAW_SENSITIVITY_BOOST = 2152 new Key<Integer>("android.control.postRawSensitivityBoost", int.class); 2153 2154 /** 2155 * <p>Allow camera device to enable zero-shutter-lag mode for requests with 2156 * {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} == STILL_CAPTURE.</p> 2157 * <p>If enableZsl is <code>true</code>, the camera device may enable zero-shutter-lag mode for requests with 2158 * STILL_CAPTURE capture intent. The camera device may use images captured in the past to 2159 * produce output images for a zero-shutter-lag request. The result metadata including the 2160 * {@link CaptureResult#SENSOR_TIMESTAMP android.sensor.timestamp} reflects the source frames used to produce output images. 2161 * Therefore, the contents of the output images and the result metadata may be out of order 2162 * compared to previous regular requests. enableZsl does not affect requests with other 2163 * capture intents.</p> 2164 * <p>For example, when requests are submitted in the following order: 2165 * Request A: enableZsl is ON, {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} is PREVIEW 2166 * Request B: enableZsl is ON, {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} is STILL_CAPTURE</p> 2167 * <p>The output images for request B may have contents captured before the output images for 2168 * request A, and the result metadata for request B may be older than the result metadata for 2169 * request A.</p> 2170 * <p>Note that when enableZsl is <code>true</code>, it is not guaranteed to get output images captured in 2171 * the past for requests with STILL_CAPTURE capture intent.</p> 2172 * <p>For applications targeting SDK versions O and newer, the value of enableZsl in 2173 * TEMPLATE_STILL_CAPTURE template may be <code>true</code>. The value in other templates is always 2174 * <code>false</code> if present.</p> 2175 * <p>For applications targeting SDK versions older than O, the value of enableZsl in all 2176 * capture templates is always <code>false</code> if present.</p> 2177 * <p>For application-operated ZSL, use CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p> 2178 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2179 * 2180 * @see CaptureRequest#CONTROL_CAPTURE_INTENT 2181 * @see CaptureResult#SENSOR_TIMESTAMP 2182 */ 2183 @PublicKey 2184 public static final Key<Boolean> CONTROL_ENABLE_ZSL = 2185 new Key<Boolean>("android.control.enableZsl", boolean.class); 2186 2187 /** 2188 * <p>Operation mode for edge 2189 * enhancement.</p> 2190 * <p>Edge enhancement improves sharpness and details in the captured image. OFF means 2191 * no enhancement will be applied by the camera device.</p> 2192 * <p>FAST/HIGH_QUALITY both mean camera device determined enhancement 2193 * will be applied. HIGH_QUALITY mode indicates that the 2194 * camera device will use the highest-quality enhancement algorithms, 2195 * even if it slows down capture rate. FAST means the camera device will 2196 * not slow down capture rate when applying edge enhancement. FAST may be the same as OFF if 2197 * edge enhancement will slow down capture rate. Every output stream will have a similar 2198 * amount of enhancement applied.</p> 2199 * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular 2200 * buffer of high-resolution images during preview and reprocess image(s) from that buffer 2201 * into a final capture when triggered by the user. In this mode, the camera device applies 2202 * edge enhancement to low-resolution streams (below maximum recording resolution) to 2203 * maximize preview quality, but does not apply edge enhancement to high-resolution streams, 2204 * since those will be reprocessed later if necessary.</p> 2205 * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera 2206 * device will apply FAST/HIGH_QUALITY YUV-domain edge enhancement, respectively. 2207 * The camera device may adjust its internal edge enhancement parameters for best 2208 * image quality based on the {@link CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR android.reprocess.effectiveExposureFactor}, if it is set.</p> 2209 * <p><b>Possible values:</b> 2210 * <ul> 2211 * <li>{@link #EDGE_MODE_OFF OFF}</li> 2212 * <li>{@link #EDGE_MODE_FAST FAST}</li> 2213 * <li>{@link #EDGE_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 2214 * <li>{@link #EDGE_MODE_ZERO_SHUTTER_LAG ZERO_SHUTTER_LAG}</li> 2215 * </ul></p> 2216 * <p><b>Available values for this device:</b><br> 2217 * {@link CameraCharacteristics#EDGE_AVAILABLE_EDGE_MODES android.edge.availableEdgeModes}</p> 2218 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2219 * <p><b>Full capability</b> - 2220 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2221 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2222 * 2223 * @see CameraCharacteristics#EDGE_AVAILABLE_EDGE_MODES 2224 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2225 * @see CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR 2226 * @see #EDGE_MODE_OFF 2227 * @see #EDGE_MODE_FAST 2228 * @see #EDGE_MODE_HIGH_QUALITY 2229 * @see #EDGE_MODE_ZERO_SHUTTER_LAG 2230 */ 2231 @PublicKey 2232 public static final Key<Integer> EDGE_MODE = 2233 new Key<Integer>("android.edge.mode", int.class); 2234 2235 /** 2236 * <p>The desired mode for for the camera device's flash control.</p> 2237 * <p>This control is only effective when flash unit is available 2238 * (<code>{@link CameraCharacteristics#FLASH_INFO_AVAILABLE android.flash.info.available} == true</code>).</p> 2239 * <p>When this control is used, the {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} must be set to ON or OFF. 2240 * Otherwise, the camera device auto-exposure related flash control (ON_AUTO_FLASH, 2241 * ON_ALWAYS_FLASH, or ON_AUTO_FLASH_REDEYE) will override this control.</p> 2242 * <p>When set to OFF, the camera device will not fire flash for this capture.</p> 2243 * <p>When set to SINGLE, the camera device will fire flash regardless of the camera 2244 * device's auto-exposure routine's result. When used in still capture case, this 2245 * control should be used along with auto-exposure (AE) precapture metering sequence 2246 * ({@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}), otherwise, the image may be incorrectly exposed.</p> 2247 * <p>When set to TORCH, the flash will be on continuously. This mode can be used 2248 * for use cases such as preview, auto-focus assist, still capture, or video recording.</p> 2249 * <p>The flash status will be reported by {@link CaptureResult#FLASH_STATE android.flash.state} in the capture result metadata.</p> 2250 * <p><b>Possible values:</b> 2251 * <ul> 2252 * <li>{@link #FLASH_MODE_OFF OFF}</li> 2253 * <li>{@link #FLASH_MODE_SINGLE SINGLE}</li> 2254 * <li>{@link #FLASH_MODE_TORCH TORCH}</li> 2255 * </ul></p> 2256 * <p>This key is available on all devices.</p> 2257 * 2258 * @see CaptureRequest#CONTROL_AE_MODE 2259 * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER 2260 * @see CameraCharacteristics#FLASH_INFO_AVAILABLE 2261 * @see CaptureResult#FLASH_STATE 2262 * @see #FLASH_MODE_OFF 2263 * @see #FLASH_MODE_SINGLE 2264 * @see #FLASH_MODE_TORCH 2265 */ 2266 @PublicKey 2267 public static final Key<Integer> FLASH_MODE = 2268 new Key<Integer>("android.flash.mode", int.class); 2269 2270 /** 2271 * <p>Current state of the flash 2272 * unit.</p> 2273 * <p>When the camera device doesn't have flash unit 2274 * (i.e. <code>{@link CameraCharacteristics#FLASH_INFO_AVAILABLE android.flash.info.available} == false</code>), this state will always be UNAVAILABLE. 2275 * Other states indicate the current flash status.</p> 2276 * <p>In certain conditions, this will be available on LEGACY devices:</p> 2277 * <ul> 2278 * <li>Flash-less cameras always return UNAVAILABLE.</li> 2279 * <li>Using {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} <code>==</code> ON_ALWAYS_FLASH 2280 * will always return FIRED.</li> 2281 * <li>Using {@link CaptureRequest#FLASH_MODE android.flash.mode} <code>==</code> TORCH 2282 * will always return FIRED.</li> 2283 * </ul> 2284 * <p>In all other conditions the state will not be available on 2285 * LEGACY devices (i.e. it will be <code>null</code>).</p> 2286 * <p><b>Possible values:</b> 2287 * <ul> 2288 * <li>{@link #FLASH_STATE_UNAVAILABLE UNAVAILABLE}</li> 2289 * <li>{@link #FLASH_STATE_CHARGING CHARGING}</li> 2290 * <li>{@link #FLASH_STATE_READY READY}</li> 2291 * <li>{@link #FLASH_STATE_FIRED FIRED}</li> 2292 * <li>{@link #FLASH_STATE_PARTIAL PARTIAL}</li> 2293 * </ul></p> 2294 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2295 * <p><b>Limited capability</b> - 2296 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 2297 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2298 * 2299 * @see CaptureRequest#CONTROL_AE_MODE 2300 * @see CameraCharacteristics#FLASH_INFO_AVAILABLE 2301 * @see CaptureRequest#FLASH_MODE 2302 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2303 * @see #FLASH_STATE_UNAVAILABLE 2304 * @see #FLASH_STATE_CHARGING 2305 * @see #FLASH_STATE_READY 2306 * @see #FLASH_STATE_FIRED 2307 * @see #FLASH_STATE_PARTIAL 2308 */ 2309 @PublicKey 2310 public static final Key<Integer> FLASH_STATE = 2311 new Key<Integer>("android.flash.state", int.class); 2312 2313 /** 2314 * <p>Operational mode for hot pixel correction.</p> 2315 * <p>Hotpixel correction interpolates out, or otherwise removes, pixels 2316 * that do not accurately measure the incoming light (i.e. pixels that 2317 * are stuck at an arbitrary value or are oversensitive).</p> 2318 * <p><b>Possible values:</b> 2319 * <ul> 2320 * <li>{@link #HOT_PIXEL_MODE_OFF OFF}</li> 2321 * <li>{@link #HOT_PIXEL_MODE_FAST FAST}</li> 2322 * <li>{@link #HOT_PIXEL_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 2323 * </ul></p> 2324 * <p><b>Available values for this device:</b><br> 2325 * {@link CameraCharacteristics#HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES android.hotPixel.availableHotPixelModes}</p> 2326 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2327 * 2328 * @see CameraCharacteristics#HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES 2329 * @see #HOT_PIXEL_MODE_OFF 2330 * @see #HOT_PIXEL_MODE_FAST 2331 * @see #HOT_PIXEL_MODE_HIGH_QUALITY 2332 */ 2333 @PublicKey 2334 public static final Key<Integer> HOT_PIXEL_MODE = 2335 new Key<Integer>("android.hotPixel.mode", int.class); 2336 2337 /** 2338 * <p>A location object to use when generating image GPS metadata.</p> 2339 * <p>Setting a location object in a request will include the GPS coordinates of the location 2340 * into any JPEG images captured based on the request. These coordinates can then be 2341 * viewed by anyone who receives the JPEG image.</p> 2342 * <p>This key is available on all devices.</p> 2343 */ 2344 @PublicKey 2345 @SyntheticKey 2346 public static final Key<android.location.Location> JPEG_GPS_LOCATION = 2347 new Key<android.location.Location>("android.jpeg.gpsLocation", android.location.Location.class); 2348 2349 /** 2350 * <p>GPS coordinates to include in output JPEG 2351 * EXIF.</p> 2352 * <p><b>Range of valid values:</b><br> 2353 * (-180 - 180], [-90,90], [-inf, inf]</p> 2354 * <p>This key is available on all devices.</p> 2355 * @hide 2356 */ 2357 public static final Key<double[]> JPEG_GPS_COORDINATES = 2358 new Key<double[]>("android.jpeg.gpsCoordinates", double[].class); 2359 2360 /** 2361 * <p>32 characters describing GPS algorithm to 2362 * include in EXIF.</p> 2363 * <p><b>Units</b>: UTF-8 null-terminated string</p> 2364 * <p>This key is available on all devices.</p> 2365 * @hide 2366 */ 2367 public static final Key<String> JPEG_GPS_PROCESSING_METHOD = 2368 new Key<String>("android.jpeg.gpsProcessingMethod", String.class); 2369 2370 /** 2371 * <p>Time GPS fix was made to include in 2372 * EXIF.</p> 2373 * <p><b>Units</b>: UTC in seconds since January 1, 1970</p> 2374 * <p>This key is available on all devices.</p> 2375 * @hide 2376 */ 2377 public static final Key<Long> JPEG_GPS_TIMESTAMP = 2378 new Key<Long>("android.jpeg.gpsTimestamp", long.class); 2379 2380 /** 2381 * <p>The orientation for a JPEG image.</p> 2382 * <p>The clockwise rotation angle in degrees, relative to the orientation 2383 * to the camera, that the JPEG picture needs to be rotated by, to be viewed 2384 * upright.</p> 2385 * <p>Camera devices may either encode this value into the JPEG EXIF header, or 2386 * rotate the image data to match this orientation. When the image data is rotated, 2387 * the thumbnail data will also be rotated.</p> 2388 * <p>Note that this orientation is relative to the orientation of the camera sensor, given 2389 * by {@link CameraCharacteristics#SENSOR_ORIENTATION android.sensor.orientation}.</p> 2390 * <p>To translate from the device orientation given by the Android sensor APIs, the following 2391 * sample code may be used:</p> 2392 * <pre><code>private int getJpegOrientation(CameraCharacteristics c, int deviceOrientation) { 2393 * if (deviceOrientation == android.view.OrientationEventListener.ORIENTATION_UNKNOWN) return 0; 2394 * int sensorOrientation = c.get(CameraCharacteristics.SENSOR_ORIENTATION); 2395 * 2396 * // Round device orientation to a multiple of 90 2397 * deviceOrientation = (deviceOrientation + 45) / 90 * 90; 2398 * 2399 * // Reverse device orientation for front-facing cameras 2400 * boolean facingFront = c.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT; 2401 * if (facingFront) deviceOrientation = -deviceOrientation; 2402 * 2403 * // Calculate desired JPEG orientation relative to camera orientation to make 2404 * // the image upright relative to the device orientation 2405 * int jpegOrientation = (sensorOrientation + deviceOrientation + 360) % 360; 2406 * 2407 * return jpegOrientation; 2408 * } 2409 * </code></pre> 2410 * <p><b>Units</b>: Degrees in multiples of 90</p> 2411 * <p><b>Range of valid values:</b><br> 2412 * 0, 90, 180, 270</p> 2413 * <p>This key is available on all devices.</p> 2414 * 2415 * @see CameraCharacteristics#SENSOR_ORIENTATION 2416 */ 2417 @PublicKey 2418 public static final Key<Integer> JPEG_ORIENTATION = 2419 new Key<Integer>("android.jpeg.orientation", int.class); 2420 2421 /** 2422 * <p>Compression quality of the final JPEG 2423 * image.</p> 2424 * <p>85-95 is typical usage range.</p> 2425 * <p><b>Range of valid values:</b><br> 2426 * 1-100; larger is higher quality</p> 2427 * <p>This key is available on all devices.</p> 2428 */ 2429 @PublicKey 2430 public static final Key<Byte> JPEG_QUALITY = 2431 new Key<Byte>("android.jpeg.quality", byte.class); 2432 2433 /** 2434 * <p>Compression quality of JPEG 2435 * thumbnail.</p> 2436 * <p><b>Range of valid values:</b><br> 2437 * 1-100; larger is higher quality</p> 2438 * <p>This key is available on all devices.</p> 2439 */ 2440 @PublicKey 2441 public static final Key<Byte> JPEG_THUMBNAIL_QUALITY = 2442 new Key<Byte>("android.jpeg.thumbnailQuality", byte.class); 2443 2444 /** 2445 * <p>Resolution of embedded JPEG thumbnail.</p> 2446 * <p>When set to (0, 0) value, the JPEG EXIF will not contain thumbnail, 2447 * but the captured JPEG will still be a valid image.</p> 2448 * <p>For best results, when issuing a request for a JPEG image, the thumbnail size selected 2449 * should have the same aspect ratio as the main JPEG output.</p> 2450 * <p>If the thumbnail image aspect ratio differs from the JPEG primary image aspect 2451 * ratio, the camera device creates the thumbnail by cropping it from the primary image. 2452 * For example, if the primary image has 4:3 aspect ratio, the thumbnail image has 2453 * 16:9 aspect ratio, the primary image will be cropped vertically (letterbox) to 2454 * generate the thumbnail image. The thumbnail image will always have a smaller Field 2455 * Of View (FOV) than the primary image when aspect ratios differ.</p> 2456 * <p>When an {@link CaptureRequest#JPEG_ORIENTATION android.jpeg.orientation} of non-zero degree is requested, 2457 * the camera device will handle thumbnail rotation in one of the following ways:</p> 2458 * <ul> 2459 * <li>Set the {@link android.media.ExifInterface#TAG_ORIENTATION EXIF orientation flag} 2460 * and keep jpeg and thumbnail image data unrotated.</li> 2461 * <li>Rotate the jpeg and thumbnail image data and not set 2462 * {@link android.media.ExifInterface#TAG_ORIENTATION EXIF orientation flag}. In this 2463 * case, LIMITED or FULL hardware level devices will report rotated thumnail size in 2464 * capture result, so the width and height will be interchanged if 90 or 270 degree 2465 * orientation is requested. LEGACY device will always report unrotated thumbnail 2466 * size.</li> 2467 * </ul> 2468 * <p><b>Range of valid values:</b><br> 2469 * {@link CameraCharacteristics#JPEG_AVAILABLE_THUMBNAIL_SIZES android.jpeg.availableThumbnailSizes}</p> 2470 * <p>This key is available on all devices.</p> 2471 * 2472 * @see CameraCharacteristics#JPEG_AVAILABLE_THUMBNAIL_SIZES 2473 * @see CaptureRequest#JPEG_ORIENTATION 2474 */ 2475 @PublicKey 2476 public static final Key<android.util.Size> JPEG_THUMBNAIL_SIZE = 2477 new Key<android.util.Size>("android.jpeg.thumbnailSize", android.util.Size.class); 2478 2479 /** 2480 * <p>The desired lens aperture size, as a ratio of lens focal length to the 2481 * effective aperture diameter.</p> 2482 * <p>Setting this value is only supported on the camera devices that have a variable 2483 * aperture lens.</p> 2484 * <p>When this is supported and {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is OFF, 2485 * this can be set along with {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}, 2486 * {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}, and {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration} 2487 * to achieve manual exposure control.</p> 2488 * <p>The requested aperture value may take several frames to reach the 2489 * requested value; the camera device will report the current (intermediate) 2490 * aperture size in capture result metadata while the aperture is changing. 2491 * While the aperture is still changing, {@link CaptureResult#LENS_STATE android.lens.state} will be set to MOVING.</p> 2492 * <p>When this is supported and {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is one of 2493 * the ON modes, this will be overridden by the camera device 2494 * auto-exposure algorithm, the overridden values are then provided 2495 * back to the user in the corresponding result.</p> 2496 * <p><b>Units</b>: The f-number (f/N)</p> 2497 * <p><b>Range of valid values:</b><br> 2498 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_APERTURES android.lens.info.availableApertures}</p> 2499 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2500 * <p><b>Full capability</b> - 2501 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2502 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2503 * 2504 * @see CaptureRequest#CONTROL_AE_MODE 2505 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2506 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_APERTURES 2507 * @see CaptureResult#LENS_STATE 2508 * @see CaptureRequest#SENSOR_EXPOSURE_TIME 2509 * @see CaptureRequest#SENSOR_FRAME_DURATION 2510 * @see CaptureRequest#SENSOR_SENSITIVITY 2511 */ 2512 @PublicKey 2513 public static final Key<Float> LENS_APERTURE = 2514 new Key<Float>("android.lens.aperture", float.class); 2515 2516 /** 2517 * <p>The desired setting for the lens neutral density filter(s).</p> 2518 * <p>This control will not be supported on most camera devices.</p> 2519 * <p>Lens filters are typically used to lower the amount of light the 2520 * sensor is exposed to (measured in steps of EV). As used here, an EV 2521 * step is the standard logarithmic representation, which are 2522 * non-negative, and inversely proportional to the amount of light 2523 * hitting the sensor. For example, setting this to 0 would result 2524 * in no reduction of the incoming light, and setting this to 2 would 2525 * mean that the filter is set to reduce incoming light by two stops 2526 * (allowing 1/4 of the prior amount of light to the sensor).</p> 2527 * <p>It may take several frames before the lens filter density changes 2528 * to the requested value. While the filter density is still changing, 2529 * {@link CaptureResult#LENS_STATE android.lens.state} will be set to MOVING.</p> 2530 * <p><b>Units</b>: Exposure Value (EV)</p> 2531 * <p><b>Range of valid values:</b><br> 2532 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_FILTER_DENSITIES android.lens.info.availableFilterDensities}</p> 2533 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2534 * <p><b>Full capability</b> - 2535 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2536 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2537 * 2538 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2539 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_FILTER_DENSITIES 2540 * @see CaptureResult#LENS_STATE 2541 */ 2542 @PublicKey 2543 public static final Key<Float> LENS_FILTER_DENSITY = 2544 new Key<Float>("android.lens.filterDensity", float.class); 2545 2546 /** 2547 * <p>The desired lens focal length; used for optical zoom.</p> 2548 * <p>This setting controls the physical focal length of the camera 2549 * device's lens. Changing the focal length changes the field of 2550 * view of the camera device, and is usually used for optical zoom.</p> 2551 * <p>Like {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance} and {@link CaptureRequest#LENS_APERTURE android.lens.aperture}, this 2552 * setting won't be applied instantaneously, and it may take several 2553 * frames before the lens can change to the requested focal length. 2554 * While the focal length is still changing, {@link CaptureResult#LENS_STATE android.lens.state} will 2555 * be set to MOVING.</p> 2556 * <p>Optical zoom will not be supported on most devices.</p> 2557 * <p><b>Units</b>: Millimeters</p> 2558 * <p><b>Range of valid values:</b><br> 2559 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_FOCAL_LENGTHS android.lens.info.availableFocalLengths}</p> 2560 * <p>This key is available on all devices.</p> 2561 * 2562 * @see CaptureRequest#LENS_APERTURE 2563 * @see CaptureRequest#LENS_FOCUS_DISTANCE 2564 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_FOCAL_LENGTHS 2565 * @see CaptureResult#LENS_STATE 2566 */ 2567 @PublicKey 2568 public static final Key<Float> LENS_FOCAL_LENGTH = 2569 new Key<Float>("android.lens.focalLength", float.class); 2570 2571 /** 2572 * <p>Desired distance to plane of sharpest focus, 2573 * measured from frontmost surface of the lens.</p> 2574 * <p>Should be zero for fixed-focus cameras</p> 2575 * <p><b>Units</b>: See {@link CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION android.lens.info.focusDistanceCalibration} for details</p> 2576 * <p><b>Range of valid values:</b><br> 2577 * >= 0</p> 2578 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2579 * <p><b>Full capability</b> - 2580 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2581 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2582 * 2583 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2584 * @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION 2585 */ 2586 @PublicKey 2587 public static final Key<Float> LENS_FOCUS_DISTANCE = 2588 new Key<Float>("android.lens.focusDistance", float.class); 2589 2590 /** 2591 * <p>The range of scene distances that are in 2592 * sharp focus (depth of field).</p> 2593 * <p>If variable focus not supported, can still report 2594 * fixed depth of field range</p> 2595 * <p><b>Units</b>: A pair of focus distances in diopters: (near, 2596 * far); see {@link CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION android.lens.info.focusDistanceCalibration} for details.</p> 2597 * <p><b>Range of valid values:</b><br> 2598 * >=0</p> 2599 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2600 * <p><b>Limited capability</b> - 2601 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 2602 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2603 * 2604 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2605 * @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION 2606 */ 2607 @PublicKey 2608 public static final Key<android.util.Pair<Float,Float>> LENS_FOCUS_RANGE = 2609 new Key<android.util.Pair<Float,Float>>("android.lens.focusRange", new TypeReference<android.util.Pair<Float,Float>>() {{ }}); 2610 2611 /** 2612 * <p>Sets whether the camera device uses optical image stabilization (OIS) 2613 * when capturing images.</p> 2614 * <p>OIS is used to compensate for motion blur due to small 2615 * movements of the camera during capture. Unlike digital image 2616 * stabilization ({@link CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE android.control.videoStabilizationMode}), OIS 2617 * makes use of mechanical elements to stabilize the camera 2618 * sensor, and thus allows for longer exposure times before 2619 * camera shake becomes apparent.</p> 2620 * <p>Switching between different optical stabilization modes may take several 2621 * frames to initialize, the camera device will report the current mode in 2622 * capture result metadata. For example, When "ON" mode is requested, the 2623 * optical stabilization modes in the first several capture results may still 2624 * be "OFF", and it will become "ON" when the initialization is done.</p> 2625 * <p>If a camera device supports both OIS and digital image stabilization 2626 * ({@link CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE android.control.videoStabilizationMode}), turning both modes on may produce undesirable 2627 * interaction, so it is recommended not to enable both at the same time.</p> 2628 * <p>Not all devices will support OIS; see 2629 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION android.lens.info.availableOpticalStabilization} for 2630 * available controls.</p> 2631 * <p><b>Possible values:</b> 2632 * <ul> 2633 * <li>{@link #LENS_OPTICAL_STABILIZATION_MODE_OFF OFF}</li> 2634 * <li>{@link #LENS_OPTICAL_STABILIZATION_MODE_ON ON}</li> 2635 * </ul></p> 2636 * <p><b>Available values for this device:</b><br> 2637 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION android.lens.info.availableOpticalStabilization}</p> 2638 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2639 * <p><b>Limited capability</b> - 2640 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 2641 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2642 * 2643 * @see CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE 2644 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2645 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION 2646 * @see #LENS_OPTICAL_STABILIZATION_MODE_OFF 2647 * @see #LENS_OPTICAL_STABILIZATION_MODE_ON 2648 */ 2649 @PublicKey 2650 public static final Key<Integer> LENS_OPTICAL_STABILIZATION_MODE = 2651 new Key<Integer>("android.lens.opticalStabilizationMode", int.class); 2652 2653 /** 2654 * <p>Current lens status.</p> 2655 * <p>For lens parameters {@link CaptureRequest#LENS_FOCAL_LENGTH android.lens.focalLength}, {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance}, 2656 * {@link CaptureRequest#LENS_FILTER_DENSITY android.lens.filterDensity} and {@link CaptureRequest#LENS_APERTURE android.lens.aperture}, when changes are requested, 2657 * they may take several frames to reach the requested values. This state indicates 2658 * the current status of the lens parameters.</p> 2659 * <p>When the state is STATIONARY, the lens parameters are not changing. This could be 2660 * either because the parameters are all fixed, or because the lens has had enough 2661 * time to reach the most recently-requested values. 2662 * If all these lens parameters are not changable for a camera device, as listed below:</p> 2663 * <ul> 2664 * <li>Fixed focus (<code>{@link CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance} == 0</code>), which means 2665 * {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance} parameter will always be 0.</li> 2666 * <li>Fixed focal length ({@link CameraCharacteristics#LENS_INFO_AVAILABLE_FOCAL_LENGTHS android.lens.info.availableFocalLengths} contains single value), 2667 * which means the optical zoom is not supported.</li> 2668 * <li>No ND filter ({@link CameraCharacteristics#LENS_INFO_AVAILABLE_FILTER_DENSITIES android.lens.info.availableFilterDensities} contains only 0).</li> 2669 * <li>Fixed aperture ({@link CameraCharacteristics#LENS_INFO_AVAILABLE_APERTURES android.lens.info.availableApertures} contains single value).</li> 2670 * </ul> 2671 * <p>Then this state will always be STATIONARY.</p> 2672 * <p>When the state is MOVING, it indicates that at least one of the lens parameters 2673 * is changing.</p> 2674 * <p><b>Possible values:</b> 2675 * <ul> 2676 * <li>{@link #LENS_STATE_STATIONARY STATIONARY}</li> 2677 * <li>{@link #LENS_STATE_MOVING MOVING}</li> 2678 * </ul></p> 2679 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2680 * <p><b>Limited capability</b> - 2681 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 2682 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2683 * 2684 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2685 * @see CaptureRequest#LENS_APERTURE 2686 * @see CaptureRequest#LENS_FILTER_DENSITY 2687 * @see CaptureRequest#LENS_FOCAL_LENGTH 2688 * @see CaptureRequest#LENS_FOCUS_DISTANCE 2689 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_APERTURES 2690 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_FILTER_DENSITIES 2691 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_FOCAL_LENGTHS 2692 * @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE 2693 * @see #LENS_STATE_STATIONARY 2694 * @see #LENS_STATE_MOVING 2695 */ 2696 @PublicKey 2697 public static final Key<Integer> LENS_STATE = 2698 new Key<Integer>("android.lens.state", int.class); 2699 2700 /** 2701 * <p>The orientation of the camera relative to the sensor 2702 * coordinate system.</p> 2703 * <p>The four coefficients that describe the quaternion 2704 * rotation from the Android sensor coordinate system to a 2705 * camera-aligned coordinate system where the X-axis is 2706 * aligned with the long side of the image sensor, the Y-axis 2707 * is aligned with the short side of the image sensor, and 2708 * the Z-axis is aligned with the optical axis of the sensor.</p> 2709 * <p>To convert from the quaternion coefficients <code>(x,y,z,w)</code> 2710 * to the axis of rotation <code>(a_x, a_y, a_z)</code> and rotation 2711 * amount <code>theta</code>, the following formulas can be used:</p> 2712 * <pre><code> theta = 2 * acos(w) 2713 * a_x = x / sin(theta/2) 2714 * a_y = y / sin(theta/2) 2715 * a_z = z / sin(theta/2) 2716 * </code></pre> 2717 * <p>To create a 3x3 rotation matrix that applies the rotation 2718 * defined by this quaternion, the following matrix can be 2719 * used:</p> 2720 * <pre><code>R = [ 1 - 2y^2 - 2z^2, 2xy - 2zw, 2xz + 2yw, 2721 * 2xy + 2zw, 1 - 2x^2 - 2z^2, 2yz - 2xw, 2722 * 2xz - 2yw, 2yz + 2xw, 1 - 2x^2 - 2y^2 ] 2723 * </code></pre> 2724 * <p>This matrix can then be used to apply the rotation to a 2725 * column vector point with</p> 2726 * <p><code>p' = Rp</code></p> 2727 * <p>where <code>p</code> is in the device sensor coordinate system, and 2728 * <code>p'</code> is in the camera-oriented coordinate system.</p> 2729 * <p><b>Units</b>: 2730 * Quaternion coefficients</p> 2731 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2732 */ 2733 @PublicKey 2734 public static final Key<float[]> LENS_POSE_ROTATION = 2735 new Key<float[]>("android.lens.poseRotation", float[].class); 2736 2737 /** 2738 * <p>Position of the camera optical center.</p> 2739 * <p>The position of the camera device's lens optical center, 2740 * as a three-dimensional vector <code>(x,y,z)</code>, relative to the 2741 * optical center of the largest camera device facing in the 2742 * same direction as this camera, in the {@link android.hardware.SensorEvent Android sensor coordinate 2743 * axes}. Note that only the axis definitions are shared with 2744 * the sensor coordinate system, but not the origin.</p> 2745 * <p>If this device is the largest or only camera device with a 2746 * given facing, then this position will be <code>(0, 0, 0)</code>; a 2747 * camera device with a lens optical center located 3 cm from 2748 * the main sensor along the +X axis (to the right from the 2749 * user's perspective) will report <code>(0.03, 0, 0)</code>.</p> 2750 * <p>To transform a pixel coordinates between two cameras 2751 * facing the same direction, first the source camera 2752 * {@link CameraCharacteristics#LENS_RADIAL_DISTORTION android.lens.radialDistortion} must be corrected for. Then 2753 * the source camera {@link CameraCharacteristics#LENS_INTRINSIC_CALIBRATION android.lens.intrinsicCalibration} needs 2754 * to be applied, followed by the {@link CameraCharacteristics#LENS_POSE_ROTATION android.lens.poseRotation} 2755 * of the source camera, the translation of the source camera 2756 * relative to the destination camera, the 2757 * {@link CameraCharacteristics#LENS_POSE_ROTATION android.lens.poseRotation} of the destination camera, and 2758 * finally the inverse of {@link CameraCharacteristics#LENS_INTRINSIC_CALIBRATION android.lens.intrinsicCalibration} 2759 * of the destination camera. This obtains a 2760 * radial-distortion-free coordinate in the destination 2761 * camera pixel coordinates.</p> 2762 * <p>To compare this against a real image from the destination 2763 * camera, the destination camera image then needs to be 2764 * corrected for radial distortion before comparison or 2765 * sampling.</p> 2766 * <p><b>Units</b>: Meters</p> 2767 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2768 * 2769 * @see CameraCharacteristics#LENS_INTRINSIC_CALIBRATION 2770 * @see CameraCharacteristics#LENS_POSE_ROTATION 2771 * @see CameraCharacteristics#LENS_RADIAL_DISTORTION 2772 */ 2773 @PublicKey 2774 public static final Key<float[]> LENS_POSE_TRANSLATION = 2775 new Key<float[]>("android.lens.poseTranslation", float[].class); 2776 2777 /** 2778 * <p>The parameters for this camera device's intrinsic 2779 * calibration.</p> 2780 * <p>The five calibration parameters that describe the 2781 * transform from camera-centric 3D coordinates to sensor 2782 * pixel coordinates:</p> 2783 * <pre><code>[f_x, f_y, c_x, c_y, s] 2784 * </code></pre> 2785 * <p>Where <code>f_x</code> and <code>f_y</code> are the horizontal and vertical 2786 * focal lengths, <code>[c_x, c_y]</code> is the position of the optical 2787 * axis, and <code>s</code> is a skew parameter for the sensor plane not 2788 * being aligned with the lens plane.</p> 2789 * <p>These are typically used within a transformation matrix K:</p> 2790 * <pre><code>K = [ f_x, s, c_x, 2791 * 0, f_y, c_y, 2792 * 0 0, 1 ] 2793 * </code></pre> 2794 * <p>which can then be combined with the camera pose rotation 2795 * <code>R</code> and translation <code>t</code> ({@link CameraCharacteristics#LENS_POSE_ROTATION android.lens.poseRotation} and 2796 * {@link CameraCharacteristics#LENS_POSE_TRANSLATION android.lens.poseTranslation}, respective) to calculate the 2797 * complete transform from world coordinates to pixel 2798 * coordinates:</p> 2799 * <pre><code>P = [ K 0 * [ R t 2800 * 0 1 ] 0 1 ] 2801 * </code></pre> 2802 * <p>and with <code>p_w</code> being a point in the world coordinate system 2803 * and <code>p_s</code> being a point in the camera active pixel array 2804 * coordinate system, and with the mapping including the 2805 * homogeneous division by z:</p> 2806 * <pre><code> p_h = (x_h, y_h, z_h) = P p_w 2807 * p_s = p_h / z_h 2808 * </code></pre> 2809 * <p>so <code>[x_s, y_s]</code> is the pixel coordinates of the world 2810 * point, <code>z_s = 1</code>, and <code>w_s</code> is a measurement of disparity 2811 * (depth) in pixel coordinates.</p> 2812 * <p>Note that the coordinate system for this transform is the 2813 * {@link CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize} system, 2814 * where <code>(0,0)</code> is the top-left of the 2815 * preCorrectionActiveArraySize rectangle. Once the pose and 2816 * intrinsic calibration transforms have been applied to a 2817 * world point, then the {@link CameraCharacteristics#LENS_RADIAL_DISTORTION android.lens.radialDistortion} 2818 * transform needs to be applied, and the result adjusted to 2819 * be in the {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize} coordinate 2820 * system (where <code>(0, 0)</code> is the top-left of the 2821 * activeArraySize rectangle), to determine the final pixel 2822 * coordinate of the world point for processed (non-RAW) 2823 * output buffers.</p> 2824 * <p><b>Units</b>: 2825 * Pixels in the 2826 * {@link CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize} 2827 * coordinate system.</p> 2828 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2829 * 2830 * @see CameraCharacteristics#LENS_POSE_ROTATION 2831 * @see CameraCharacteristics#LENS_POSE_TRANSLATION 2832 * @see CameraCharacteristics#LENS_RADIAL_DISTORTION 2833 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 2834 * @see CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE 2835 */ 2836 @PublicKey 2837 public static final Key<float[]> LENS_INTRINSIC_CALIBRATION = 2838 new Key<float[]>("android.lens.intrinsicCalibration", float[].class); 2839 2840 /** 2841 * <p>The correction coefficients to correct for this camera device's 2842 * radial and tangential lens distortion.</p> 2843 * <p>Four radial distortion coefficients <code>[kappa_0, kappa_1, kappa_2, 2844 * kappa_3]</code> and two tangential distortion coefficients 2845 * <code>[kappa_4, kappa_5]</code> that can be used to correct the 2846 * lens's geometric distortion with the mapping equations:</p> 2847 * <pre><code> x_c = x_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) + 2848 * kappa_4 * (2 * x_i * y_i) + kappa_5 * ( r^2 + 2 * x_i^2 ) 2849 * y_c = y_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) + 2850 * kappa_5 * (2 * x_i * y_i) + kappa_4 * ( r^2 + 2 * y_i^2 ) 2851 * </code></pre> 2852 * <p>Here, <code>[x_c, y_c]</code> are the coordinates to sample in the 2853 * input image that correspond to the pixel values in the 2854 * corrected image at the coordinate <code>[x_i, y_i]</code>:</p> 2855 * <pre><code> correctedImage(x_i, y_i) = sample_at(x_c, y_c, inputImage) 2856 * </code></pre> 2857 * <p>The pixel coordinates are defined in a normalized 2858 * coordinate system related to the 2859 * {@link CameraCharacteristics#LENS_INTRINSIC_CALIBRATION android.lens.intrinsicCalibration} calibration fields. 2860 * Both <code>[x_i, y_i]</code> and <code>[x_c, y_c]</code> have <code>(0,0)</code> at the 2861 * lens optical center <code>[c_x, c_y]</code>. The maximum magnitudes 2862 * of both x and y coordinates are normalized to be 1 at the 2863 * edge further from the optical center, so the range 2864 * for both dimensions is <code>-1 <= x <= 1</code>.</p> 2865 * <p>Finally, <code>r</code> represents the radial distance from the 2866 * optical center, <code>r^2 = x_i^2 + y_i^2</code>, and its magnitude 2867 * is therefore no larger than <code>|r| <= sqrt(2)</code>.</p> 2868 * <p>The distortion model used is the Brown-Conrady model.</p> 2869 * <p><b>Units</b>: 2870 * Unitless coefficients.</p> 2871 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2872 * 2873 * @see CameraCharacteristics#LENS_INTRINSIC_CALIBRATION 2874 */ 2875 @PublicKey 2876 public static final Key<float[]> LENS_RADIAL_DISTORTION = 2877 new Key<float[]>("android.lens.radialDistortion", float[].class); 2878 2879 /** 2880 * <p>Mode of operation for the noise reduction algorithm.</p> 2881 * <p>The noise reduction algorithm attempts to improve image quality by removing 2882 * excessive noise added by the capture process, especially in dark conditions.</p> 2883 * <p>OFF means no noise reduction will be applied by the camera device, for both raw and 2884 * YUV domain.</p> 2885 * <p>MINIMAL means that only sensor raw domain basic noise reduction is enabled ,to remove 2886 * demosaicing or other processing artifacts. For YUV_REPROCESSING, MINIMAL is same as OFF. 2887 * This mode is optional, may not be support by all devices. The application should check 2888 * {@link CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES android.noiseReduction.availableNoiseReductionModes} before using it.</p> 2889 * <p>FAST/HIGH_QUALITY both mean camera device determined noise filtering 2890 * will be applied. HIGH_QUALITY mode indicates that the camera device 2891 * will use the highest-quality noise filtering algorithms, 2892 * even if it slows down capture rate. FAST means the camera device will not 2893 * slow down capture rate when applying noise filtering. FAST may be the same as MINIMAL if 2894 * MINIMAL is listed, or the same as OFF if any noise filtering will slow down capture rate. 2895 * Every output stream will have a similar amount of enhancement applied.</p> 2896 * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular 2897 * buffer of high-resolution images during preview and reprocess image(s) from that buffer 2898 * into a final capture when triggered by the user. In this mode, the camera device applies 2899 * noise reduction to low-resolution streams (below maximum recording resolution) to maximize 2900 * preview quality, but does not apply noise reduction to high-resolution streams, since 2901 * those will be reprocessed later if necessary.</p> 2902 * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera device 2903 * will apply FAST/HIGH_QUALITY YUV domain noise reduction, respectively. The camera device 2904 * may adjust the noise reduction parameters for best image quality based on the 2905 * {@link CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR android.reprocess.effectiveExposureFactor} if it is set.</p> 2906 * <p><b>Possible values:</b> 2907 * <ul> 2908 * <li>{@link #NOISE_REDUCTION_MODE_OFF OFF}</li> 2909 * <li>{@link #NOISE_REDUCTION_MODE_FAST FAST}</li> 2910 * <li>{@link #NOISE_REDUCTION_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 2911 * <li>{@link #NOISE_REDUCTION_MODE_MINIMAL MINIMAL}</li> 2912 * <li>{@link #NOISE_REDUCTION_MODE_ZERO_SHUTTER_LAG ZERO_SHUTTER_LAG}</li> 2913 * </ul></p> 2914 * <p><b>Available values for this device:</b><br> 2915 * {@link CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES android.noiseReduction.availableNoiseReductionModes}</p> 2916 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2917 * <p><b>Full capability</b> - 2918 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2919 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2920 * 2921 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2922 * @see CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES 2923 * @see CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR 2924 * @see #NOISE_REDUCTION_MODE_OFF 2925 * @see #NOISE_REDUCTION_MODE_FAST 2926 * @see #NOISE_REDUCTION_MODE_HIGH_QUALITY 2927 * @see #NOISE_REDUCTION_MODE_MINIMAL 2928 * @see #NOISE_REDUCTION_MODE_ZERO_SHUTTER_LAG 2929 */ 2930 @PublicKey 2931 public static final Key<Integer> NOISE_REDUCTION_MODE = 2932 new Key<Integer>("android.noiseReduction.mode", int.class); 2933 2934 /** 2935 * <p>Whether a result given to the framework is the 2936 * final one for the capture, or only a partial that contains a 2937 * subset of the full set of dynamic metadata 2938 * values.</p> 2939 * <p>The entries in the result metadata buffers for a 2940 * single capture may not overlap, except for this entry. The 2941 * FINAL buffers must retain FIFO ordering relative to the 2942 * requests that generate them, so the FINAL buffer for frame 3 must 2943 * always be sent to the framework after the FINAL buffer for frame 2, and 2944 * before the FINAL buffer for frame 4. PARTIAL buffers may be returned 2945 * in any order relative to other frames, but all PARTIAL buffers for a given 2946 * capture must arrive before the FINAL buffer for that capture. This entry may 2947 * only be used by the camera device if quirks.usePartialResult is set to 1.</p> 2948 * <p><b>Range of valid values:</b><br> 2949 * Optional. Default value is FINAL.</p> 2950 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2951 * @deprecated 2952 * @hide 2953 */ 2954 @Deprecated 2955 public static final Key<Boolean> QUIRKS_PARTIAL_RESULT = 2956 new Key<Boolean>("android.quirks.partialResult", boolean.class); 2957 2958 /** 2959 * <p>A frame counter set by the framework. This value monotonically 2960 * increases with every new result (that is, each new result has a unique 2961 * frameCount value).</p> 2962 * <p>Reset on release()</p> 2963 * <p><b>Units</b>: count of frames</p> 2964 * <p><b>Range of valid values:</b><br> 2965 * > 0</p> 2966 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2967 * @deprecated 2968 * @hide 2969 */ 2970 @Deprecated 2971 public static final Key<Integer> REQUEST_FRAME_COUNT = 2972 new Key<Integer>("android.request.frameCount", int.class); 2973 2974 /** 2975 * <p>An application-specified ID for the current 2976 * request. Must be maintained unchanged in output 2977 * frame</p> 2978 * <p><b>Units</b>: arbitrary integer assigned by application</p> 2979 * <p><b>Range of valid values:</b><br> 2980 * Any int</p> 2981 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2982 * @hide 2983 */ 2984 public static final Key<Integer> REQUEST_ID = 2985 new Key<Integer>("android.request.id", int.class); 2986 2987 /** 2988 * <p>Specifies the number of pipeline stages the frame went 2989 * through from when it was exposed to when the final completed result 2990 * was available to the framework.</p> 2991 * <p>Depending on what settings are used in the request, and 2992 * what streams are configured, the data may undergo less processing, 2993 * and some pipeline stages skipped.</p> 2994 * <p>See {@link CameraCharacteristics#REQUEST_PIPELINE_MAX_DEPTH android.request.pipelineMaxDepth} for more details.</p> 2995 * <p><b>Range of valid values:</b><br> 2996 * <= {@link CameraCharacteristics#REQUEST_PIPELINE_MAX_DEPTH android.request.pipelineMaxDepth}</p> 2997 * <p>This key is available on all devices.</p> 2998 * 2999 * @see CameraCharacteristics#REQUEST_PIPELINE_MAX_DEPTH 3000 */ 3001 @PublicKey 3002 public static final Key<Byte> REQUEST_PIPELINE_DEPTH = 3003 new Key<Byte>("android.request.pipelineDepth", byte.class); 3004 3005 /** 3006 * <p>The desired region of the sensor to read out for this capture.</p> 3007 * <p>This control can be used to implement digital zoom.</p> 3008 * <p>The crop region coordinate system is based off 3009 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}, with <code>(0, 0)</code> being the 3010 * top-left corner of the sensor active array.</p> 3011 * <p>Output streams use this rectangle to produce their output, 3012 * cropping to a smaller region if necessary to maintain the 3013 * stream's aspect ratio, then scaling the sensor input to 3014 * match the output's configured resolution.</p> 3015 * <p>The crop region is applied after the RAW to other color 3016 * space (e.g. YUV) conversion. Since raw streams 3017 * (e.g. RAW16) don't have the conversion stage, they are not 3018 * croppable. The crop region will be ignored by raw streams.</p> 3019 * <p>For non-raw streams, any additional per-stream cropping will 3020 * be done to maximize the final pixel area of the stream.</p> 3021 * <p>For example, if the crop region is set to a 4:3 aspect 3022 * ratio, then 4:3 streams will use the exact crop 3023 * region. 16:9 streams will further crop vertically 3024 * (letterbox).</p> 3025 * <p>Conversely, if the crop region is set to a 16:9, then 4:3 3026 * outputs will crop horizontally (pillarbox), and 16:9 3027 * streams will match exactly. These additional crops will 3028 * be centered within the crop region.</p> 3029 * <p>The width and height of the crop region cannot 3030 * be set to be smaller than 3031 * <code>floor( activeArraySize.width / {@link CameraCharacteristics#SCALER_AVAILABLE_MAX_DIGITAL_ZOOM android.scaler.availableMaxDigitalZoom} )</code> and 3032 * <code>floor( activeArraySize.height / {@link CameraCharacteristics#SCALER_AVAILABLE_MAX_DIGITAL_ZOOM android.scaler.availableMaxDigitalZoom} )</code>, respectively.</p> 3033 * <p>The camera device may adjust the crop region to account 3034 * for rounding and other hardware requirements; the final 3035 * crop region used will be included in the output capture 3036 * result.</p> 3037 * <p><b>Units</b>: Pixel coordinates relative to 3038 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 3039 * <p>This key is available on all devices.</p> 3040 * 3041 * @see CameraCharacteristics#SCALER_AVAILABLE_MAX_DIGITAL_ZOOM 3042 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 3043 */ 3044 @PublicKey 3045 public static final Key<android.graphics.Rect> SCALER_CROP_REGION = 3046 new Key<android.graphics.Rect>("android.scaler.cropRegion", android.graphics.Rect.class); 3047 3048 /** 3049 * <p>Duration each pixel is exposed to 3050 * light.</p> 3051 * <p>If the sensor can't expose this exact duration, it will shorten the 3052 * duration exposed to the nearest possible value (rather than expose longer). 3053 * The final exposure time used will be available in the output capture result.</p> 3054 * <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 3055 * OFF; otherwise the auto-exposure algorithm will override this value.</p> 3056 * <p><b>Units</b>: Nanoseconds</p> 3057 * <p><b>Range of valid values:</b><br> 3058 * {@link CameraCharacteristics#SENSOR_INFO_EXPOSURE_TIME_RANGE android.sensor.info.exposureTimeRange}</p> 3059 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3060 * <p><b>Full capability</b> - 3061 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3062 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3063 * 3064 * @see CaptureRequest#CONTROL_AE_MODE 3065 * @see CaptureRequest#CONTROL_MODE 3066 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3067 * @see CameraCharacteristics#SENSOR_INFO_EXPOSURE_TIME_RANGE 3068 */ 3069 @PublicKey 3070 public static final Key<Long> SENSOR_EXPOSURE_TIME = 3071 new Key<Long>("android.sensor.exposureTime", long.class); 3072 3073 /** 3074 * <p>Duration from start of frame exposure to 3075 * start of next frame exposure.</p> 3076 * <p>The maximum frame rate that can be supported by a camera subsystem is 3077 * a function of many factors:</p> 3078 * <ul> 3079 * <li>Requested resolutions of output image streams</li> 3080 * <li>Availability of binning / skipping modes on the imager</li> 3081 * <li>The bandwidth of the imager interface</li> 3082 * <li>The bandwidth of the various ISP processing blocks</li> 3083 * </ul> 3084 * <p>Since these factors can vary greatly between different ISPs and 3085 * sensors, the camera abstraction tries to represent the bandwidth 3086 * restrictions with as simple a model as possible.</p> 3087 * <p>The model presented has the following characteristics:</p> 3088 * <ul> 3089 * <li>The image sensor is always configured to output the smallest 3090 * resolution possible given the application's requested output stream 3091 * sizes. The smallest resolution is defined as being at least as large 3092 * as the largest requested output stream size; the camera pipeline must 3093 * never digitally upsample sensor data when the crop region covers the 3094 * whole sensor. In general, this means that if only small output stream 3095 * resolutions are configured, the sensor can provide a higher frame 3096 * rate.</li> 3097 * <li>Since any request may use any or all the currently configured 3098 * output streams, the sensor and ISP must be configured to support 3099 * scaling a single capture to all the streams at the same time. This 3100 * means the camera pipeline must be ready to produce the largest 3101 * requested output size without any delay. Therefore, the overall 3102 * frame rate of a given configured stream set is governed only by the 3103 * largest requested stream resolution.</li> 3104 * <li>Using more than one output stream in a request does not affect the 3105 * frame duration.</li> 3106 * <li>Certain format-streams may need to do additional background processing 3107 * before data is consumed/produced by that stream. These processors 3108 * can run concurrently to the rest of the camera pipeline, but 3109 * cannot process more than 1 capture at a time.</li> 3110 * </ul> 3111 * <p>The necessary information for the application, given the model above, 3112 * is provided via the {@link CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap} field using 3113 * {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputMinFrameDuration }. 3114 * These are used to determine the maximum frame rate / minimum frame 3115 * duration that is possible for a given stream configuration.</p> 3116 * <p>Specifically, the application can use the following rules to 3117 * determine the minimum frame duration it can request from the camera 3118 * device:</p> 3119 * <ol> 3120 * <li>Let the set of currently configured input/output streams 3121 * be called <code>S</code>.</li> 3122 * <li>Find the minimum frame durations for each stream in <code>S</code>, by looking 3123 * it up in {@link CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap} using {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputMinFrameDuration } 3124 * (with its respective size/format). Let this set of frame durations be 3125 * called <code>F</code>.</li> 3126 * <li>For any given request <code>R</code>, the minimum frame duration allowed 3127 * for <code>R</code> is the maximum out of all values in <code>F</code>. Let the streams 3128 * used in <code>R</code> be called <code>S_r</code>.</li> 3129 * </ol> 3130 * <p>If none of the streams in <code>S_r</code> have a stall time (listed in {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputStallDuration } 3131 * using its respective size/format), then the frame duration in <code>F</code> 3132 * determines the steady state frame rate that the application will get 3133 * if it uses <code>R</code> as a repeating request. Let this special kind of 3134 * request be called <code>Rsimple</code>.</p> 3135 * <p>A repeating request <code>Rsimple</code> can be <em>occasionally</em> interleaved 3136 * by a single capture of a new request <code>Rstall</code> (which has at least 3137 * one in-use stream with a non-0 stall time) and if <code>Rstall</code> has the 3138 * same minimum frame duration this will not cause a frame rate loss 3139 * if all buffers from the previous <code>Rstall</code> have already been 3140 * delivered.</p> 3141 * <p>For more details about stalling, see 3142 * {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputStallDuration }.</p> 3143 * <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 3144 * OFF; otherwise the auto-exposure algorithm will override this value.</p> 3145 * <p><b>Units</b>: Nanoseconds</p> 3146 * <p><b>Range of valid values:</b><br> 3147 * See {@link CameraCharacteristics#SENSOR_INFO_MAX_FRAME_DURATION android.sensor.info.maxFrameDuration}, 3148 * {@link CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap}. The duration 3149 * is capped to <code>max(duration, exposureTime + overhead)</code>.</p> 3150 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3151 * <p><b>Full capability</b> - 3152 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3153 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3154 * 3155 * @see CaptureRequest#CONTROL_AE_MODE 3156 * @see CaptureRequest#CONTROL_MODE 3157 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3158 * @see CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP 3159 * @see CameraCharacteristics#SENSOR_INFO_MAX_FRAME_DURATION 3160 */ 3161 @PublicKey 3162 public static final Key<Long> SENSOR_FRAME_DURATION = 3163 new Key<Long>("android.sensor.frameDuration", long.class); 3164 3165 /** 3166 * <p>The amount of gain applied to sensor data 3167 * before processing.</p> 3168 * <p>The sensitivity is the standard ISO sensitivity value, 3169 * as defined in ISO 12232:2006.</p> 3170 * <p>The sensitivity must be within {@link CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE android.sensor.info.sensitivityRange}, and 3171 * if if it less than {@link CameraCharacteristics#SENSOR_MAX_ANALOG_SENSITIVITY android.sensor.maxAnalogSensitivity}, the camera device 3172 * is guaranteed to use only analog amplification for applying the gain.</p> 3173 * <p>If the camera device cannot apply the exact sensitivity 3174 * requested, it will reduce the gain to the nearest supported 3175 * value. The final sensitivity used will be available in the 3176 * output capture result.</p> 3177 * <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 3178 * OFF; otherwise the auto-exposure algorithm will override this value.</p> 3179 * <p><b>Units</b>: ISO arithmetic units</p> 3180 * <p><b>Range of valid values:</b><br> 3181 * {@link CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE android.sensor.info.sensitivityRange}</p> 3182 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3183 * <p><b>Full capability</b> - 3184 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3185 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3186 * 3187 * @see CaptureRequest#CONTROL_AE_MODE 3188 * @see CaptureRequest#CONTROL_MODE 3189 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3190 * @see CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE 3191 * @see CameraCharacteristics#SENSOR_MAX_ANALOG_SENSITIVITY 3192 */ 3193 @PublicKey 3194 public static final Key<Integer> SENSOR_SENSITIVITY = 3195 new Key<Integer>("android.sensor.sensitivity", int.class); 3196 3197 /** 3198 * <p>Time at start of exposure of first 3199 * row of the image sensor active array, in nanoseconds.</p> 3200 * <p>The timestamps are also included in all image 3201 * buffers produced for the same capture, and will be identical 3202 * on all the outputs.</p> 3203 * <p>When {@link CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE android.sensor.info.timestampSource} <code>==</code> UNKNOWN, 3204 * the timestamps measure time since an unspecified starting point, 3205 * and are monotonically increasing. They can be compared with the 3206 * timestamps for other captures from the same camera device, but are 3207 * not guaranteed to be comparable to any other time source.</p> 3208 * <p>When {@link CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE android.sensor.info.timestampSource} <code>==</code> REALTIME, the 3209 * timestamps measure time in the same timebase as {@link android.os.SystemClock#elapsedRealtimeNanos }, and they can 3210 * be compared to other timestamps from other subsystems that 3211 * are using that base.</p> 3212 * <p>For reprocessing, the timestamp will match the start of exposure of 3213 * the input image, i.e. {@link CaptureResult#SENSOR_TIMESTAMP the 3214 * timestamp} in the TotalCaptureResult that was used to create the 3215 * reprocess capture request.</p> 3216 * <p><b>Units</b>: Nanoseconds</p> 3217 * <p><b>Range of valid values:</b><br> 3218 * > 0</p> 3219 * <p>This key is available on all devices.</p> 3220 * 3221 * @see CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE 3222 */ 3223 @PublicKey 3224 public static final Key<Long> SENSOR_TIMESTAMP = 3225 new Key<Long>("android.sensor.timestamp", long.class); 3226 3227 /** 3228 * <p>The estimated camera neutral color in the native sensor colorspace at 3229 * the time of capture.</p> 3230 * <p>This value gives the neutral color point encoded as an RGB value in the 3231 * native sensor color space. The neutral color point indicates the 3232 * currently estimated white point of the scene illumination. It can be 3233 * used to interpolate between the provided color transforms when 3234 * processing raw sensor data.</p> 3235 * <p>The order of the values is R, G, B; where R is in the lowest index.</p> 3236 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3237 */ 3238 @PublicKey 3239 public static final Key<Rational[]> SENSOR_NEUTRAL_COLOR_POINT = 3240 new Key<Rational[]>("android.sensor.neutralColorPoint", Rational[].class); 3241 3242 /** 3243 * <p>Noise model coefficients for each CFA mosaic channel.</p> 3244 * <p>This key contains two noise model coefficients for each CFA channel 3245 * corresponding to the sensor amplification (S) and sensor readout 3246 * noise (O). These are given as pairs of coefficients for each channel 3247 * in the same order as channels listed for the CFA layout key 3248 * (see {@link CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT android.sensor.info.colorFilterArrangement}). This is 3249 * represented as an array of Pair<Double, Double>, where 3250 * the first member of the Pair at index n is the S coefficient and the 3251 * second member is the O coefficient for the nth color channel in the CFA.</p> 3252 * <p>These coefficients are used in a two parameter noise model to describe 3253 * the amount of noise present in the image for each CFA channel. The 3254 * noise model used here is:</p> 3255 * <p>N(x) = sqrt(Sx + O)</p> 3256 * <p>Where x represents the recorded signal of a CFA channel normalized to 3257 * the range [0, 1], and S and O are the noise model coeffiecients for 3258 * that channel.</p> 3259 * <p>A more detailed description of the noise model can be found in the 3260 * Adobe DNG specification for the NoiseProfile tag.</p> 3261 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3262 * 3263 * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT 3264 */ 3265 @PublicKey 3266 public static final Key<android.util.Pair<Double,Double>[]> SENSOR_NOISE_PROFILE = 3267 new Key<android.util.Pair<Double,Double>[]>("android.sensor.noiseProfile", new TypeReference<android.util.Pair<Double,Double>[]>() {{ }}); 3268 3269 /** 3270 * <p>The worst-case divergence between Bayer green channels.</p> 3271 * <p>This value is an estimate of the worst case split between the 3272 * Bayer green channels in the red and blue rows in the sensor color 3273 * filter array.</p> 3274 * <p>The green split is calculated as follows:</p> 3275 * <ol> 3276 * <li>A 5x5 pixel (or larger) window W within the active sensor array is 3277 * chosen. The term 'pixel' here is taken to mean a group of 4 Bayer 3278 * mosaic channels (R, Gr, Gb, B). The location and size of the window 3279 * chosen is implementation defined, and should be chosen to provide a 3280 * green split estimate that is both representative of the entire image 3281 * for this camera sensor, and can be calculated quickly.</li> 3282 * <li>The arithmetic mean of the green channels from the red 3283 * rows (mean_Gr) within W is computed.</li> 3284 * <li>The arithmetic mean of the green channels from the blue 3285 * rows (mean_Gb) within W is computed.</li> 3286 * <li>The maximum ratio R of the two means is computed as follows: 3287 * <code>R = max((mean_Gr + 1)/(mean_Gb + 1), (mean_Gb + 1)/(mean_Gr + 1))</code></li> 3288 * </ol> 3289 * <p>The ratio R is the green split divergence reported for this property, 3290 * which represents how much the green channels differ in the mosaic 3291 * pattern. This value is typically used to determine the treatment of 3292 * the green mosaic channels when demosaicing.</p> 3293 * <p>The green split value can be roughly interpreted as follows:</p> 3294 * <ul> 3295 * <li>R < 1.03 is a negligible split (<3% divergence).</li> 3296 * <li>1.20 <= R >= 1.03 will require some software 3297 * correction to avoid demosaic errors (3-20% divergence).</li> 3298 * <li>R > 1.20 will require strong software correction to produce 3299 * a usuable image (>20% divergence).</li> 3300 * </ul> 3301 * <p><b>Range of valid values:</b><br></p> 3302 * <p>>= 0</p> 3303 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3304 */ 3305 @PublicKey 3306 public static final Key<Float> SENSOR_GREEN_SPLIT = 3307 new Key<Float>("android.sensor.greenSplit", float.class); 3308 3309 /** 3310 * <p>A pixel <code>[R, G_even, G_odd, B]</code> that supplies the test pattern 3311 * when {@link CaptureRequest#SENSOR_TEST_PATTERN_MODE android.sensor.testPatternMode} is SOLID_COLOR.</p> 3312 * <p>Each color channel is treated as an unsigned 32-bit integer. 3313 * The camera device then uses the most significant X bits 3314 * that correspond to how many bits are in its Bayer raw sensor 3315 * output.</p> 3316 * <p>For example, a sensor with RAW10 Bayer output would use the 3317 * 10 most significant bits from each color channel.</p> 3318 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3319 * 3320 * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE 3321 */ 3322 @PublicKey 3323 public static final Key<int[]> SENSOR_TEST_PATTERN_DATA = 3324 new Key<int[]>("android.sensor.testPatternData", int[].class); 3325 3326 /** 3327 * <p>When enabled, the sensor sends a test pattern instead of 3328 * doing a real exposure from the camera.</p> 3329 * <p>When a test pattern is enabled, all manual sensor controls specified 3330 * by android.sensor.* will be ignored. All other controls should 3331 * work as normal.</p> 3332 * <p>For example, if manual flash is enabled, flash firing should still 3333 * occur (and that the test pattern remain unmodified, since the flash 3334 * would not actually affect it).</p> 3335 * <p>Defaults to OFF.</p> 3336 * <p><b>Possible values:</b> 3337 * <ul> 3338 * <li>{@link #SENSOR_TEST_PATTERN_MODE_OFF OFF}</li> 3339 * <li>{@link #SENSOR_TEST_PATTERN_MODE_SOLID_COLOR SOLID_COLOR}</li> 3340 * <li>{@link #SENSOR_TEST_PATTERN_MODE_COLOR_BARS COLOR_BARS}</li> 3341 * <li>{@link #SENSOR_TEST_PATTERN_MODE_COLOR_BARS_FADE_TO_GRAY COLOR_BARS_FADE_TO_GRAY}</li> 3342 * <li>{@link #SENSOR_TEST_PATTERN_MODE_PN9 PN9}</li> 3343 * <li>{@link #SENSOR_TEST_PATTERN_MODE_CUSTOM1 CUSTOM1}</li> 3344 * </ul></p> 3345 * <p><b>Available values for this device:</b><br> 3346 * {@link CameraCharacteristics#SENSOR_AVAILABLE_TEST_PATTERN_MODES android.sensor.availableTestPatternModes}</p> 3347 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3348 * 3349 * @see CameraCharacteristics#SENSOR_AVAILABLE_TEST_PATTERN_MODES 3350 * @see #SENSOR_TEST_PATTERN_MODE_OFF 3351 * @see #SENSOR_TEST_PATTERN_MODE_SOLID_COLOR 3352 * @see #SENSOR_TEST_PATTERN_MODE_COLOR_BARS 3353 * @see #SENSOR_TEST_PATTERN_MODE_COLOR_BARS_FADE_TO_GRAY 3354 * @see #SENSOR_TEST_PATTERN_MODE_PN9 3355 * @see #SENSOR_TEST_PATTERN_MODE_CUSTOM1 3356 */ 3357 @PublicKey 3358 public static final Key<Integer> SENSOR_TEST_PATTERN_MODE = 3359 new Key<Integer>("android.sensor.testPatternMode", int.class); 3360 3361 /** 3362 * <p>Duration between the start of first row exposure 3363 * and the start of last row exposure.</p> 3364 * <p>This is the exposure time skew between the first and last 3365 * row exposure start times. The first row and the last row are 3366 * the first and last rows inside of the 3367 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.</p> 3368 * <p>For typical camera sensors that use rolling shutters, this is also equivalent 3369 * to the frame readout time.</p> 3370 * <p><b>Units</b>: Nanoseconds</p> 3371 * <p><b>Range of valid values:</b><br> 3372 * >= 0 and < 3373 * {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputMinFrameDuration }.</p> 3374 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3375 * <p><b>Limited capability</b> - 3376 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 3377 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3378 * 3379 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3380 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 3381 */ 3382 @PublicKey 3383 public static final Key<Long> SENSOR_ROLLING_SHUTTER_SKEW = 3384 new Key<Long>("android.sensor.rollingShutterSkew", long.class); 3385 3386 /** 3387 * <p>A per-frame dynamic black level offset for each of the color filter 3388 * arrangement (CFA) mosaic channels.</p> 3389 * <p>Camera sensor black levels may vary dramatically for different 3390 * capture settings (e.g. {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}). The fixed black 3391 * level reported by {@link CameraCharacteristics#SENSOR_BLACK_LEVEL_PATTERN android.sensor.blackLevelPattern} may be too 3392 * inaccurate to represent the actual value on a per-frame basis. The 3393 * camera device internal pipeline relies on reliable black level values 3394 * to process the raw images appropriately. To get the best image 3395 * quality, the camera device may choose to estimate the per frame black 3396 * level values either based on optically shielded black regions 3397 * ({@link CameraCharacteristics#SENSOR_OPTICAL_BLACK_REGIONS android.sensor.opticalBlackRegions}) or its internal model.</p> 3398 * <p>This key reports the camera device estimated per-frame zero light 3399 * value for each of the CFA mosaic channels in the camera sensor. The 3400 * {@link CameraCharacteristics#SENSOR_BLACK_LEVEL_PATTERN android.sensor.blackLevelPattern} may only represent a coarse 3401 * approximation of the actual black level values. This value is the 3402 * black level used in camera device internal image processing pipeline 3403 * and generally more accurate than the fixed black level values. 3404 * However, since they are estimated values by the camera device, they 3405 * may not be as accurate as the black level values calculated from the 3406 * optical black pixels reported by {@link CameraCharacteristics#SENSOR_OPTICAL_BLACK_REGIONS android.sensor.opticalBlackRegions}.</p> 3407 * <p>The values are given in the same order as channels listed for the CFA 3408 * layout key (see {@link CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT android.sensor.info.colorFilterArrangement}), i.e. the 3409 * nth value given corresponds to the black level offset for the nth 3410 * color channel listed in the CFA.</p> 3411 * <p>This key will be available if {@link CameraCharacteristics#SENSOR_OPTICAL_BLACK_REGIONS android.sensor.opticalBlackRegions} is 3412 * available or the camera device advertises this key via 3413 * {@link android.hardware.camera2.CameraCharacteristics#getAvailableCaptureResultKeys }.</p> 3414 * <p><b>Range of valid values:</b><br> 3415 * >= 0 for each.</p> 3416 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3417 * 3418 * @see CameraCharacteristics#SENSOR_BLACK_LEVEL_PATTERN 3419 * @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT 3420 * @see CameraCharacteristics#SENSOR_OPTICAL_BLACK_REGIONS 3421 * @see CaptureRequest#SENSOR_SENSITIVITY 3422 */ 3423 @PublicKey 3424 public static final Key<float[]> SENSOR_DYNAMIC_BLACK_LEVEL = 3425 new Key<float[]>("android.sensor.dynamicBlackLevel", float[].class); 3426 3427 /** 3428 * <p>Maximum raw value output by sensor for this frame.</p> 3429 * <p>Since the {@link CameraCharacteristics#SENSOR_BLACK_LEVEL_PATTERN android.sensor.blackLevelPattern} may change for different 3430 * capture settings (e.g., {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}), the white 3431 * level will change accordingly. This key is similar to 3432 * {@link CameraCharacteristics#SENSOR_INFO_WHITE_LEVEL android.sensor.info.whiteLevel}, but specifies the camera device 3433 * estimated white level for each frame.</p> 3434 * <p>This key will be available if {@link CameraCharacteristics#SENSOR_OPTICAL_BLACK_REGIONS android.sensor.opticalBlackRegions} is 3435 * available or the camera device advertises this key via 3436 * {@link android.hardware.camera2.CameraCharacteristics#getAvailableCaptureRequestKeys }.</p> 3437 * <p><b>Range of valid values:</b><br> 3438 * >= 0</p> 3439 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3440 * 3441 * @see CameraCharacteristics#SENSOR_BLACK_LEVEL_PATTERN 3442 * @see CameraCharacteristics#SENSOR_INFO_WHITE_LEVEL 3443 * @see CameraCharacteristics#SENSOR_OPTICAL_BLACK_REGIONS 3444 * @see CaptureRequest#SENSOR_SENSITIVITY 3445 */ 3446 @PublicKey 3447 public static final Key<Integer> SENSOR_DYNAMIC_WHITE_LEVEL = 3448 new Key<Integer>("android.sensor.dynamicWhiteLevel", int.class); 3449 3450 /** 3451 * <p>Quality of lens shading correction applied 3452 * to the image data.</p> 3453 * <p>When set to OFF mode, no lens shading correction will be applied by the 3454 * camera device, and an identity lens shading map data will be provided 3455 * if <code>{@link CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE android.statistics.lensShadingMapMode} == ON</code>. For example, for lens 3456 * shading map with size of <code>[ 4, 3 ]</code>, 3457 * the output {@link CaptureResult#STATISTICS_LENS_SHADING_CORRECTION_MAP android.statistics.lensShadingCorrectionMap} for this case will be an identity 3458 * map shown below:</p> 3459 * <pre><code>[ 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 3460 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 3461 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 3462 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 3463 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 3464 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 ] 3465 * </code></pre> 3466 * <p>When set to other modes, lens shading correction will be applied by the camera 3467 * device. Applications can request lens shading map data by setting 3468 * {@link CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE android.statistics.lensShadingMapMode} to ON, and then the camera device will provide lens 3469 * shading map data in {@link CaptureResult#STATISTICS_LENS_SHADING_CORRECTION_MAP android.statistics.lensShadingCorrectionMap}; the returned shading map 3470 * data will be the one applied by the camera device for this capture request.</p> 3471 * <p>The shading map data may depend on the auto-exposure (AE) and AWB statistics, therefore 3472 * the reliability of the map data may be affected by the AE and AWB algorithms. When AE and 3473 * 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> 3474 * OFF), to get best results, it is recommended that the applications wait for the AE and AWB 3475 * to be converged before using the returned shading map data.</p> 3476 * <p><b>Possible values:</b> 3477 * <ul> 3478 * <li>{@link #SHADING_MODE_OFF OFF}</li> 3479 * <li>{@link #SHADING_MODE_FAST FAST}</li> 3480 * <li>{@link #SHADING_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 3481 * </ul></p> 3482 * <p><b>Available values for this device:</b><br> 3483 * {@link CameraCharacteristics#SHADING_AVAILABLE_MODES android.shading.availableModes}</p> 3484 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3485 * <p><b>Full capability</b> - 3486 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3487 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3488 * 3489 * @see CaptureRequest#CONTROL_AE_MODE 3490 * @see CaptureRequest#CONTROL_AWB_MODE 3491 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3492 * @see CameraCharacteristics#SHADING_AVAILABLE_MODES 3493 * @see CaptureResult#STATISTICS_LENS_SHADING_CORRECTION_MAP 3494 * @see CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE 3495 * @see #SHADING_MODE_OFF 3496 * @see #SHADING_MODE_FAST 3497 * @see #SHADING_MODE_HIGH_QUALITY 3498 */ 3499 @PublicKey 3500 public static final Key<Integer> SHADING_MODE = 3501 new Key<Integer>("android.shading.mode", int.class); 3502 3503 /** 3504 * <p>Operating mode for the face detector 3505 * unit.</p> 3506 * <p>Whether face detection is enabled, and whether it 3507 * should output just the basic fields or the full set of 3508 * fields.</p> 3509 * <p><b>Possible values:</b> 3510 * <ul> 3511 * <li>{@link #STATISTICS_FACE_DETECT_MODE_OFF OFF}</li> 3512 * <li>{@link #STATISTICS_FACE_DETECT_MODE_SIMPLE SIMPLE}</li> 3513 * <li>{@link #STATISTICS_FACE_DETECT_MODE_FULL FULL}</li> 3514 * </ul></p> 3515 * <p><b>Available values for this device:</b><br> 3516 * {@link CameraCharacteristics#STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES android.statistics.info.availableFaceDetectModes}</p> 3517 * <p>This key is available on all devices.</p> 3518 * 3519 * @see CameraCharacteristics#STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES 3520 * @see #STATISTICS_FACE_DETECT_MODE_OFF 3521 * @see #STATISTICS_FACE_DETECT_MODE_SIMPLE 3522 * @see #STATISTICS_FACE_DETECT_MODE_FULL 3523 */ 3524 @PublicKey 3525 public static final Key<Integer> STATISTICS_FACE_DETECT_MODE = 3526 new Key<Integer>("android.statistics.faceDetectMode", int.class); 3527 3528 /** 3529 * <p>List of unique IDs for detected faces.</p> 3530 * <p>Each detected face is given a unique ID that is valid for as long as the face is visible 3531 * to the camera device. A face that leaves the field of view and later returns may be 3532 * assigned a new ID.</p> 3533 * <p>Only available if {@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} == FULL 3534 * This key is available on all devices.</p> 3535 * 3536 * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE 3537 * @hide 3538 */ 3539 public static final Key<int[]> STATISTICS_FACE_IDS = 3540 new Key<int[]>("android.statistics.faceIds", int[].class); 3541 3542 /** 3543 * <p>List of landmarks for detected 3544 * faces.</p> 3545 * <p>The coordinate system is that of {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}, with 3546 * <code>(0, 0)</code> being the top-left pixel of the active array.</p> 3547 * <p>Only available if {@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} == FULL 3548 * This key is available on all devices.</p> 3549 * 3550 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 3551 * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE 3552 * @hide 3553 */ 3554 public static final Key<int[]> STATISTICS_FACE_LANDMARKS = 3555 new Key<int[]>("android.statistics.faceLandmarks", int[].class); 3556 3557 /** 3558 * <p>List of the bounding rectangles for detected 3559 * faces.</p> 3560 * <p>The coordinate system is that of {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}, with 3561 * <code>(0, 0)</code> being the top-left pixel of the active array.</p> 3562 * <p>Only available if {@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} != OFF 3563 * This key is available on all devices.</p> 3564 * 3565 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 3566 * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE 3567 * @hide 3568 */ 3569 public static final Key<android.graphics.Rect[]> STATISTICS_FACE_RECTANGLES = 3570 new Key<android.graphics.Rect[]>("android.statistics.faceRectangles", android.graphics.Rect[].class); 3571 3572 /** 3573 * <p>List of the face confidence scores for 3574 * detected faces</p> 3575 * <p>Only available if {@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} != OFF.</p> 3576 * <p><b>Range of valid values:</b><br> 3577 * 1-100</p> 3578 * <p>This key is available on all devices.</p> 3579 * 3580 * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE 3581 * @hide 3582 */ 3583 public static final Key<byte[]> STATISTICS_FACE_SCORES = 3584 new Key<byte[]>("android.statistics.faceScores", byte[].class); 3585 3586 /** 3587 * <p>List of the faces detected through camera face detection 3588 * in this capture.</p> 3589 * <p>Only available if {@link CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} <code>!=</code> OFF.</p> 3590 * <p>This key is available on all devices.</p> 3591 * 3592 * @see CaptureRequest#STATISTICS_FACE_DETECT_MODE 3593 */ 3594 @PublicKey 3595 @SyntheticKey 3596 public static final Key<android.hardware.camera2.params.Face[]> STATISTICS_FACES = 3597 new Key<android.hardware.camera2.params.Face[]>("android.statistics.faces", android.hardware.camera2.params.Face[].class); 3598 3599 /** 3600 * <p>The shading map is a low-resolution floating-point map 3601 * that lists the coefficients used to correct for vignetting, for each 3602 * Bayer color channel.</p> 3603 * <p>The map provided here is the same map that is used by the camera device to 3604 * correct both color shading and vignetting for output non-RAW images.</p> 3605 * <p>When there is no lens shading correction applied to RAW 3606 * output images ({@link CameraCharacteristics#SENSOR_INFO_LENS_SHADING_APPLIED android.sensor.info.lensShadingApplied} <code>==</code> 3607 * false), this map is the complete lens shading correction 3608 * map; when there is some lens shading correction applied to 3609 * the RAW output image ({@link CameraCharacteristics#SENSOR_INFO_LENS_SHADING_APPLIED android.sensor.info.lensShadingApplied}<code>==</code> true), this map reports the remaining lens shading 3610 * correction map that needs to be applied to get shading 3611 * corrected images that match the camera device's output for 3612 * non-RAW formats.</p> 3613 * <p>For a complete shading correction map, the least shaded 3614 * section of the image will have a gain factor of 1; all 3615 * other sections will have gains above 1.</p> 3616 * <p>When {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} = TRANSFORM_MATRIX, the map 3617 * will take into account the colorCorrection settings.</p> 3618 * <p>The shading map is for the entire active pixel array, and is not 3619 * affected by the crop region specified in the request. Each shading map 3620 * entry is the value of the shading compensation map over a specific 3621 * pixel on the sensor. Specifically, with a (N x M) resolution shading 3622 * map, and an active pixel array size (W x H), shading map entry 3623 * (x,y) ϵ (0 ... N-1, 0 ... M-1) is the value of the shading map at 3624 * pixel ( ((W-1)/(N-1)) * x, ((H-1)/(M-1)) * y) for the four color channels. 3625 * The map is assumed to be bilinearly interpolated between the sample points.</p> 3626 * <p>The channel order is [R, Geven, Godd, B], where Geven is the green 3627 * channel for the even rows of a Bayer pattern, and Godd is the odd rows. 3628 * The shading map is stored in a fully interleaved format.</p> 3629 * <p>The shading map will generally have on the order of 30-40 rows and columns, 3630 * and will be smaller than 64x64.</p> 3631 * <p>As an example, given a very small map defined as:</p> 3632 * <pre><code>width,height = [ 4, 3 ] 3633 * values = 3634 * [ 1.3, 1.2, 1.15, 1.2, 1.2, 1.2, 1.15, 1.2, 3635 * 1.1, 1.2, 1.2, 1.2, 1.3, 1.2, 1.3, 1.3, 3636 * 1.2, 1.2, 1.25, 1.1, 1.1, 1.1, 1.1, 1.0, 3637 * 1.0, 1.0, 1.0, 1.0, 1.2, 1.3, 1.25, 1.2, 3638 * 1.3, 1.2, 1.2, 1.3, 1.2, 1.15, 1.1, 1.2, 3639 * 1.2, 1.1, 1.0, 1.2, 1.3, 1.15, 1.2, 1.3 ] 3640 * </code></pre> 3641 * <p>The low-resolution scaling map images for each channel are 3642 * (displayed using nearest-neighbor interpolation):</p> 3643 * <p><img alt="Red lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/red_shading.png" /> 3644 * <img alt="Green (even rows) lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/green_e_shading.png" /> 3645 * <img alt="Green (odd rows) lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/green_o_shading.png" /> 3646 * <img alt="Blue lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/blue_shading.png" /></p> 3647 * <p>As a visualization only, inverting the full-color map to recover an 3648 * image of a gray wall (using bicubic interpolation for visual quality) as captured by the sensor gives:</p> 3649 * <p><img alt="Image of a uniform white wall (inverse shading map)" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/inv_shading.png" /></p> 3650 * <p><b>Range of valid values:</b><br> 3651 * Each gain factor is >= 1</p> 3652 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3653 * <p><b>Full capability</b> - 3654 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3655 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3656 * 3657 * @see CaptureRequest#COLOR_CORRECTION_MODE 3658 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3659 * @see CameraCharacteristics#SENSOR_INFO_LENS_SHADING_APPLIED 3660 */ 3661 @PublicKey 3662 public static final Key<android.hardware.camera2.params.LensShadingMap> STATISTICS_LENS_SHADING_CORRECTION_MAP = 3663 new Key<android.hardware.camera2.params.LensShadingMap>("android.statistics.lensShadingCorrectionMap", android.hardware.camera2.params.LensShadingMap.class); 3664 3665 /** 3666 * <p>The shading map is a low-resolution floating-point map 3667 * that lists the coefficients used to correct for vignetting and color shading, 3668 * for each Bayer color channel of RAW image data.</p> 3669 * <p>The map provided here is the same map that is used by the camera device to 3670 * correct both color shading and vignetting for output non-RAW images.</p> 3671 * <p>When there is no lens shading correction applied to RAW 3672 * output images ({@link CameraCharacteristics#SENSOR_INFO_LENS_SHADING_APPLIED android.sensor.info.lensShadingApplied} <code>==</code> 3673 * false), this map is the complete lens shading correction 3674 * map; when there is some lens shading correction applied to 3675 * the RAW output image ({@link CameraCharacteristics#SENSOR_INFO_LENS_SHADING_APPLIED android.sensor.info.lensShadingApplied}<code>==</code> true), this map reports the remaining lens shading 3676 * correction map that needs to be applied to get shading 3677 * corrected images that match the camera device's output for 3678 * non-RAW formats.</p> 3679 * <p>For a complete shading correction map, the least shaded 3680 * section of the image will have a gain factor of 1; all 3681 * other sections will have gains above 1.</p> 3682 * <p>When {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} = TRANSFORM_MATRIX, the map 3683 * will take into account the colorCorrection settings.</p> 3684 * <p>The shading map is for the entire active pixel array, and is not 3685 * affected by the crop region specified in the request. Each shading map 3686 * entry is the value of the shading compensation map over a specific 3687 * pixel on the sensor. Specifically, with a (N x M) resolution shading 3688 * map, and an active pixel array size (W x H), shading map entry 3689 * (x,y) ϵ (0 ... N-1, 0 ... M-1) is the value of the shading map at 3690 * pixel ( ((W-1)/(N-1)) * x, ((H-1)/(M-1)) * y) for the four color channels. 3691 * The map is assumed to be bilinearly interpolated between the sample points.</p> 3692 * <p>The channel order is [R, Geven, Godd, B], where Geven is the green 3693 * channel for the even rows of a Bayer pattern, and Godd is the odd rows. 3694 * The shading map is stored in a fully interleaved format, and its size 3695 * is provided in the camera static metadata by android.lens.info.shadingMapSize.</p> 3696 * <p>The shading map will generally have on the order of 30-40 rows and columns, 3697 * and will be smaller than 64x64.</p> 3698 * <p>As an example, given a very small map defined as:</p> 3699 * <pre><code>android.lens.info.shadingMapSize = [ 4, 3 ] 3700 * android.statistics.lensShadingMap = 3701 * [ 1.3, 1.2, 1.15, 1.2, 1.2, 1.2, 1.15, 1.2, 3702 * 1.1, 1.2, 1.2, 1.2, 1.3, 1.2, 1.3, 1.3, 3703 * 1.2, 1.2, 1.25, 1.1, 1.1, 1.1, 1.1, 1.0, 3704 * 1.0, 1.0, 1.0, 1.0, 1.2, 1.3, 1.25, 1.2, 3705 * 1.3, 1.2, 1.2, 1.3, 1.2, 1.15, 1.1, 1.2, 3706 * 1.2, 1.1, 1.0, 1.2, 1.3, 1.15, 1.2, 1.3 ] 3707 * </code></pre> 3708 * <p>The low-resolution scaling map images for each channel are 3709 * (displayed using nearest-neighbor interpolation):</p> 3710 * <p><img alt="Red lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/red_shading.png" /> 3711 * <img alt="Green (even rows) lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/green_e_shading.png" /> 3712 * <img alt="Green (odd rows) lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/green_o_shading.png" /> 3713 * <img alt="Blue lens shading map" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/blue_shading.png" /></p> 3714 * <p>As a visualization only, inverting the full-color map to recover an 3715 * image of a gray wall (using bicubic interpolation for visual quality) 3716 * as captured by the sensor gives:</p> 3717 * <p><img alt="Image of a uniform white wall (inverse shading map)" src="../../../../images/camera2/metadata/android.statistics.lensShadingMap/inv_shading.png" /></p> 3718 * <p>Note that the RAW image data might be subject to lens shading 3719 * correction not reported on this map. Query 3720 * {@link CameraCharacteristics#SENSOR_INFO_LENS_SHADING_APPLIED android.sensor.info.lensShadingApplied} to see if RAW image data has subject 3721 * to lens shading correction. If {@link CameraCharacteristics#SENSOR_INFO_LENS_SHADING_APPLIED android.sensor.info.lensShadingApplied} 3722 * is TRUE, the RAW image data is subject to partial or full lens shading 3723 * correction. In the case full lens shading correction is applied to RAW 3724 * images, the gain factor map reported in this key will contain all 1.0 gains. 3725 * In other words, the map reported in this key is the remaining lens shading 3726 * that needs to be applied on the RAW image to get images without lens shading 3727 * artifacts. See {@link CameraCharacteristics#REQUEST_MAX_NUM_OUTPUT_RAW android.request.maxNumOutputRaw} for a list of RAW image 3728 * formats.</p> 3729 * <p><b>Range of valid values:</b><br> 3730 * Each gain factor is >= 1</p> 3731 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3732 * <p><b>Full capability</b> - 3733 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3734 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3735 * 3736 * @see CaptureRequest#COLOR_CORRECTION_MODE 3737 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3738 * @see CameraCharacteristics#REQUEST_MAX_NUM_OUTPUT_RAW 3739 * @see CameraCharacteristics#SENSOR_INFO_LENS_SHADING_APPLIED 3740 * @hide 3741 */ 3742 public static final Key<float[]> STATISTICS_LENS_SHADING_MAP = 3743 new Key<float[]>("android.statistics.lensShadingMap", float[].class); 3744 3745 /** 3746 * <p>The best-fit color channel gains calculated 3747 * by the camera device's statistics units for the current output frame.</p> 3748 * <p>This may be different than the gains used for this frame, 3749 * since statistics processing on data from a new frame 3750 * typically completes after the transform has already been 3751 * applied to that frame.</p> 3752 * <p>The 4 channel gains are defined in Bayer domain, 3753 * see {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} for details.</p> 3754 * <p>This value should always be calculated by the auto-white balance (AWB) block, 3755 * regardless of the android.control.* current values.</p> 3756 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3757 * 3758 * @see CaptureRequest#COLOR_CORRECTION_GAINS 3759 * @deprecated 3760 * @hide 3761 */ 3762 @Deprecated 3763 public static final Key<float[]> STATISTICS_PREDICTED_COLOR_GAINS = 3764 new Key<float[]>("android.statistics.predictedColorGains", float[].class); 3765 3766 /** 3767 * <p>The best-fit color transform matrix estimate 3768 * calculated by the camera device's statistics units for the current 3769 * output frame.</p> 3770 * <p>The camera device will provide the estimate from its 3771 * statistics unit on the white balance transforms to use 3772 * for the next frame. These are the values the camera device believes 3773 * are the best fit for the current output frame. This may 3774 * be different than the transform used for this frame, since 3775 * statistics processing on data from a new frame typically 3776 * completes after the transform has already been applied to 3777 * that frame.</p> 3778 * <p>These estimates must be provided for all frames, even if 3779 * capture settings and color transforms are set by the application.</p> 3780 * <p>This value should always be calculated by the auto-white balance (AWB) block, 3781 * regardless of the android.control.* current values.</p> 3782 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3783 * @deprecated 3784 * @hide 3785 */ 3786 @Deprecated 3787 public static final Key<Rational[]> STATISTICS_PREDICTED_COLOR_TRANSFORM = 3788 new Key<Rational[]>("android.statistics.predictedColorTransform", Rational[].class); 3789 3790 /** 3791 * <p>The camera device estimated scene illumination lighting 3792 * frequency.</p> 3793 * <p>Many light sources, such as most fluorescent lights, flicker at a rate 3794 * that depends on the local utility power standards. This flicker must be 3795 * accounted for by auto-exposure routines to avoid artifacts in captured images. 3796 * The camera device uses this entry to tell the application what the scene 3797 * illuminant frequency is.</p> 3798 * <p>When manual exposure control is enabled 3799 * (<code>{@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} == OFF</code> or <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} == 3800 * OFF</code>), the {@link CaptureRequest#CONTROL_AE_ANTIBANDING_MODE android.control.aeAntibandingMode} doesn't perform 3801 * antibanding, and the application can ensure it selects 3802 * exposure times that do not cause banding issues by looking 3803 * into this metadata field. See 3804 * {@link CaptureRequest#CONTROL_AE_ANTIBANDING_MODE android.control.aeAntibandingMode} for more details.</p> 3805 * <p>Reports NONE if there doesn't appear to be flickering illumination.</p> 3806 * <p><b>Possible values:</b> 3807 * <ul> 3808 * <li>{@link #STATISTICS_SCENE_FLICKER_NONE NONE}</li> 3809 * <li>{@link #STATISTICS_SCENE_FLICKER_50HZ 50HZ}</li> 3810 * <li>{@link #STATISTICS_SCENE_FLICKER_60HZ 60HZ}</li> 3811 * </ul></p> 3812 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3813 * <p><b>Full capability</b> - 3814 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3815 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3816 * 3817 * @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE 3818 * @see CaptureRequest#CONTROL_AE_MODE 3819 * @see CaptureRequest#CONTROL_MODE 3820 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3821 * @see #STATISTICS_SCENE_FLICKER_NONE 3822 * @see #STATISTICS_SCENE_FLICKER_50HZ 3823 * @see #STATISTICS_SCENE_FLICKER_60HZ 3824 */ 3825 @PublicKey 3826 public static final Key<Integer> STATISTICS_SCENE_FLICKER = 3827 new Key<Integer>("android.statistics.sceneFlicker", int.class); 3828 3829 /** 3830 * <p>Operating mode for hot pixel map generation.</p> 3831 * <p>If set to <code>true</code>, a hot pixel map is returned in {@link CaptureResult#STATISTICS_HOT_PIXEL_MAP android.statistics.hotPixelMap}. 3832 * If set to <code>false</code>, no hot pixel map will be returned.</p> 3833 * <p><b>Range of valid values:</b><br> 3834 * {@link CameraCharacteristics#STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES android.statistics.info.availableHotPixelMapModes}</p> 3835 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3836 * 3837 * @see CaptureResult#STATISTICS_HOT_PIXEL_MAP 3838 * @see CameraCharacteristics#STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES 3839 */ 3840 @PublicKey 3841 public static final Key<Boolean> STATISTICS_HOT_PIXEL_MAP_MODE = 3842 new Key<Boolean>("android.statistics.hotPixelMapMode", boolean.class); 3843 3844 /** 3845 * <p>List of <code>(x, y)</code> coordinates of hot/defective pixels on the sensor.</p> 3846 * <p>A coordinate <code>(x, y)</code> must lie between <code>(0, 0)</code>, and 3847 * <code>(width - 1, height - 1)</code> (inclusive), which are the top-left and 3848 * bottom-right of the pixel array, respectively. The width and 3849 * height dimensions are given in {@link CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE android.sensor.info.pixelArraySize}. 3850 * This may include hot pixels that lie outside of the active array 3851 * bounds given by {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.</p> 3852 * <p><b>Range of valid values:</b><br></p> 3853 * <p>n <= number of pixels on the sensor. 3854 * The <code>(x, y)</code> coordinates must be bounded by 3855 * {@link CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE android.sensor.info.pixelArraySize}.</p> 3856 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3857 * 3858 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 3859 * @see CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE 3860 */ 3861 @PublicKey 3862 public static final Key<android.graphics.Point[]> STATISTICS_HOT_PIXEL_MAP = 3863 new Key<android.graphics.Point[]>("android.statistics.hotPixelMap", android.graphics.Point[].class); 3864 3865 /** 3866 * <p>Whether the camera device will output the lens 3867 * shading map in output result metadata.</p> 3868 * <p>When set to ON, 3869 * android.statistics.lensShadingMap will be provided in 3870 * the output result metadata.</p> 3871 * <p>ON is always supported on devices with the RAW capability.</p> 3872 * <p><b>Possible values:</b> 3873 * <ul> 3874 * <li>{@link #STATISTICS_LENS_SHADING_MAP_MODE_OFF OFF}</li> 3875 * <li>{@link #STATISTICS_LENS_SHADING_MAP_MODE_ON ON}</li> 3876 * </ul></p> 3877 * <p><b>Available values for this device:</b><br> 3878 * {@link CameraCharacteristics#STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES android.statistics.info.availableLensShadingMapModes}</p> 3879 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3880 * <p><b>Full capability</b> - 3881 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3882 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3883 * 3884 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3885 * @see CameraCharacteristics#STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES 3886 * @see #STATISTICS_LENS_SHADING_MAP_MODE_OFF 3887 * @see #STATISTICS_LENS_SHADING_MAP_MODE_ON 3888 */ 3889 @PublicKey 3890 public static final Key<Integer> STATISTICS_LENS_SHADING_MAP_MODE = 3891 new Key<Integer>("android.statistics.lensShadingMapMode", int.class); 3892 3893 /** 3894 * <p>Tonemapping / contrast / gamma curve for the blue 3895 * channel, to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 3896 * CONTRAST_CURVE.</p> 3897 * <p>See android.tonemap.curveRed for more details.</p> 3898 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3899 * <p><b>Full capability</b> - 3900 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3901 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3902 * 3903 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3904 * @see CaptureRequest#TONEMAP_MODE 3905 * @hide 3906 */ 3907 public static final Key<float[]> TONEMAP_CURVE_BLUE = 3908 new Key<float[]>("android.tonemap.curveBlue", float[].class); 3909 3910 /** 3911 * <p>Tonemapping / contrast / gamma curve for the green 3912 * channel, to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 3913 * CONTRAST_CURVE.</p> 3914 * <p>See android.tonemap.curveRed for more details.</p> 3915 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3916 * <p><b>Full capability</b> - 3917 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3918 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3919 * 3920 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3921 * @see CaptureRequest#TONEMAP_MODE 3922 * @hide 3923 */ 3924 public static final Key<float[]> TONEMAP_CURVE_GREEN = 3925 new Key<float[]>("android.tonemap.curveGreen", float[].class); 3926 3927 /** 3928 * <p>Tonemapping / contrast / gamma curve for the red 3929 * channel, to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 3930 * CONTRAST_CURVE.</p> 3931 * <p>Each channel's curve is defined by an array of control points:</p> 3932 * <pre><code>android.tonemap.curveRed = 3933 * [ P0in, P0out, P1in, P1out, P2in, P2out, P3in, P3out, ..., PNin, PNout ] 3934 * 2 <= N <= {@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}</code></pre> 3935 * <p>These are sorted in order of increasing <code>Pin</code>; it is 3936 * required that input values 0.0 and 1.0 are included in the list to 3937 * define a complete mapping. For input values between control points, 3938 * the camera device must linearly interpolate between the control 3939 * points.</p> 3940 * <p>Each curve can have an independent number of points, and the number 3941 * of points can be less than max (that is, the request doesn't have to 3942 * always provide a curve with number of points equivalent to 3943 * {@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}).</p> 3944 * <p>A few examples, and their corresponding graphical mappings; these 3945 * only specify the red channel and the precision is limited to 4 3946 * digits, for conciseness.</p> 3947 * <p>Linear mapping:</p> 3948 * <pre><code>android.tonemap.curveRed = [ 0, 0, 1.0, 1.0 ] 3949 * </code></pre> 3950 * <p><img alt="Linear mapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/linear_tonemap.png" /></p> 3951 * <p>Invert mapping:</p> 3952 * <pre><code>android.tonemap.curveRed = [ 0, 1.0, 1.0, 0 ] 3953 * </code></pre> 3954 * <p><img alt="Inverting mapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/inverse_tonemap.png" /></p> 3955 * <p>Gamma 1/2.2 mapping, with 16 control points:</p> 3956 * <pre><code>android.tonemap.curveRed = [ 3957 * 0.0000, 0.0000, 0.0667, 0.2920, 0.1333, 0.4002, 0.2000, 0.4812, 3958 * 0.2667, 0.5484, 0.3333, 0.6069, 0.4000, 0.6594, 0.4667, 0.7072, 3959 * 0.5333, 0.7515, 0.6000, 0.7928, 0.6667, 0.8317, 0.7333, 0.8685, 3960 * 0.8000, 0.9035, 0.8667, 0.9370, 0.9333, 0.9691, 1.0000, 1.0000 ] 3961 * </code></pre> 3962 * <p><img alt="Gamma = 1/2.2 tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/gamma_tonemap.png" /></p> 3963 * <p>Standard sRGB gamma mapping, per IEC 61966-2-1:1999, with 16 control points:</p> 3964 * <pre><code>android.tonemap.curveRed = [ 3965 * 0.0000, 0.0000, 0.0667, 0.2864, 0.1333, 0.4007, 0.2000, 0.4845, 3966 * 0.2667, 0.5532, 0.3333, 0.6125, 0.4000, 0.6652, 0.4667, 0.7130, 3967 * 0.5333, 0.7569, 0.6000, 0.7977, 0.6667, 0.8360, 0.7333, 0.8721, 3968 * 0.8000, 0.9063, 0.8667, 0.9389, 0.9333, 0.9701, 1.0000, 1.0000 ] 3969 * </code></pre> 3970 * <p><img alt="sRGB tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p> 3971 * <p><b>Range of valid values:</b><br> 3972 * 0-1 on both input and output coordinates, normalized 3973 * as a floating-point value such that 0 == black and 1 == white.</p> 3974 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 3975 * <p><b>Full capability</b> - 3976 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 3977 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 3978 * 3979 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 3980 * @see CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS 3981 * @see CaptureRequest#TONEMAP_MODE 3982 * @hide 3983 */ 3984 public static final Key<float[]> TONEMAP_CURVE_RED = 3985 new Key<float[]>("android.tonemap.curveRed", float[].class); 3986 3987 /** 3988 * <p>Tonemapping / contrast / gamma curve to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} 3989 * is CONTRAST_CURVE.</p> 3990 * <p>The tonemapCurve consist of three curves for each of red, green, and blue 3991 * channels respectively. The following example uses the red channel as an 3992 * example. The same logic applies to green and blue channel. 3993 * Each channel's curve is defined by an array of control points:</p> 3994 * <pre><code>curveRed = 3995 * [ P0(in, out), P1(in, out), P2(in, out), P3(in, out), ..., PN(in, out) ] 3996 * 2 <= N <= {@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}</code></pre> 3997 * <p>These are sorted in order of increasing <code>Pin</code>; it is always 3998 * guaranteed that input values 0.0 and 1.0 are included in the list to 3999 * define a complete mapping. For input values between control points, 4000 * the camera device must linearly interpolate between the control 4001 * points.</p> 4002 * <p>Each curve can have an independent number of points, and the number 4003 * of points can be less than max (that is, the request doesn't have to 4004 * always provide a curve with number of points equivalent to 4005 * {@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}).</p> 4006 * <p>A few examples, and their corresponding graphical mappings; these 4007 * only specify the red channel and the precision is limited to 4 4008 * digits, for conciseness.</p> 4009 * <p>Linear mapping:</p> 4010 * <pre><code>curveRed = [ (0, 0), (1.0, 1.0) ] 4011 * </code></pre> 4012 * <p><img alt="Linear mapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/linear_tonemap.png" /></p> 4013 * <p>Invert mapping:</p> 4014 * <pre><code>curveRed = [ (0, 1.0), (1.0, 0) ] 4015 * </code></pre> 4016 * <p><img alt="Inverting mapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/inverse_tonemap.png" /></p> 4017 * <p>Gamma 1/2.2 mapping, with 16 control points:</p> 4018 * <pre><code>curveRed = [ 4019 * (0.0000, 0.0000), (0.0667, 0.2920), (0.1333, 0.4002), (0.2000, 0.4812), 4020 * (0.2667, 0.5484), (0.3333, 0.6069), (0.4000, 0.6594), (0.4667, 0.7072), 4021 * (0.5333, 0.7515), (0.6000, 0.7928), (0.6667, 0.8317), (0.7333, 0.8685), 4022 * (0.8000, 0.9035), (0.8667, 0.9370), (0.9333, 0.9691), (1.0000, 1.0000) ] 4023 * </code></pre> 4024 * <p><img alt="Gamma = 1/2.2 tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/gamma_tonemap.png" /></p> 4025 * <p>Standard sRGB gamma mapping, per IEC 61966-2-1:1999, with 16 control points:</p> 4026 * <pre><code>curveRed = [ 4027 * (0.0000, 0.0000), (0.0667, 0.2864), (0.1333, 0.4007), (0.2000, 0.4845), 4028 * (0.2667, 0.5532), (0.3333, 0.6125), (0.4000, 0.6652), (0.4667, 0.7130), 4029 * (0.5333, 0.7569), (0.6000, 0.7977), (0.6667, 0.8360), (0.7333, 0.8721), 4030 * (0.8000, 0.9063), (0.8667, 0.9389), (0.9333, 0.9701), (1.0000, 1.0000) ] 4031 * </code></pre> 4032 * <p><img alt="sRGB tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p> 4033 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 4034 * <p><b>Full capability</b> - 4035 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 4036 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 4037 * 4038 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 4039 * @see CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS 4040 * @see CaptureRequest#TONEMAP_MODE 4041 */ 4042 @PublicKey 4043 @SyntheticKey 4044 public static final Key<android.hardware.camera2.params.TonemapCurve> TONEMAP_CURVE = 4045 new Key<android.hardware.camera2.params.TonemapCurve>("android.tonemap.curve", android.hardware.camera2.params.TonemapCurve.class); 4046 4047 /** 4048 * <p>High-level global contrast/gamma/tonemapping control.</p> 4049 * <p>When switching to an application-defined contrast curve by setting 4050 * {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} to CONTRAST_CURVE, the curve is defined 4051 * per-channel with a set of <code>(in, out)</code> points that specify the 4052 * mapping from input high-bit-depth pixel value to the output 4053 * low-bit-depth value. Since the actual pixel ranges of both input 4054 * and output may change depending on the camera pipeline, the values 4055 * are specified by normalized floating-point numbers.</p> 4056 * <p>More-complex color mapping operations such as 3D color look-up 4057 * tables, selective chroma enhancement, or other non-linear color 4058 * transforms will be disabled when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 4059 * CONTRAST_CURVE.</p> 4060 * <p>When using either FAST or HIGH_QUALITY, the camera device will 4061 * emit its own tonemap curve in {@link CaptureRequest#TONEMAP_CURVE android.tonemap.curve}. 4062 * These values are always available, and as close as possible to the 4063 * actually used nonlinear/nonglobal transforms.</p> 4064 * <p>If a request is sent with CONTRAST_CURVE with the camera device's 4065 * provided curve in FAST or HIGH_QUALITY, the image's tonemap will be 4066 * roughly the same.</p> 4067 * <p><b>Possible values:</b> 4068 * <ul> 4069 * <li>{@link #TONEMAP_MODE_CONTRAST_CURVE CONTRAST_CURVE}</li> 4070 * <li>{@link #TONEMAP_MODE_FAST FAST}</li> 4071 * <li>{@link #TONEMAP_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 4072 * <li>{@link #TONEMAP_MODE_GAMMA_VALUE GAMMA_VALUE}</li> 4073 * <li>{@link #TONEMAP_MODE_PRESET_CURVE PRESET_CURVE}</li> 4074 * </ul></p> 4075 * <p><b>Available values for this device:</b><br> 4076 * {@link CameraCharacteristics#TONEMAP_AVAILABLE_TONE_MAP_MODES android.tonemap.availableToneMapModes}</p> 4077 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 4078 * <p><b>Full capability</b> - 4079 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 4080 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 4081 * 4082 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 4083 * @see CameraCharacteristics#TONEMAP_AVAILABLE_TONE_MAP_MODES 4084 * @see CaptureRequest#TONEMAP_CURVE 4085 * @see CaptureRequest#TONEMAP_MODE 4086 * @see #TONEMAP_MODE_CONTRAST_CURVE 4087 * @see #TONEMAP_MODE_FAST 4088 * @see #TONEMAP_MODE_HIGH_QUALITY 4089 * @see #TONEMAP_MODE_GAMMA_VALUE 4090 * @see #TONEMAP_MODE_PRESET_CURVE 4091 */ 4092 @PublicKey 4093 public static final Key<Integer> TONEMAP_MODE = 4094 new Key<Integer>("android.tonemap.mode", int.class); 4095 4096 /** 4097 * <p>Tonemapping curve to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 4098 * GAMMA_VALUE</p> 4099 * <p>The tonemap curve will be defined the following formula: 4100 * * OUT = pow(IN, 1.0 / gamma) 4101 * where IN and OUT is the input pixel value scaled to range [0.0, 1.0], 4102 * pow is the power function and gamma is the gamma value specified by this 4103 * key.</p> 4104 * <p>The same curve will be applied to all color channels. The camera device 4105 * may clip the input gamma value to its supported range. The actual applied 4106 * value will be returned in capture result.</p> 4107 * <p>The valid range of gamma value varies on different devices, but values 4108 * within [1.0, 5.0] are guaranteed not to be clipped.</p> 4109 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 4110 * 4111 * @see CaptureRequest#TONEMAP_MODE 4112 */ 4113 @PublicKey 4114 public static final Key<Float> TONEMAP_GAMMA = 4115 new Key<Float>("android.tonemap.gamma", float.class); 4116 4117 /** 4118 * <p>Tonemapping curve to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 4119 * PRESET_CURVE</p> 4120 * <p>The tonemap curve will be defined by specified standard.</p> 4121 * <p>sRGB (approximated by 16 control points):</p> 4122 * <p><img alt="sRGB tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p> 4123 * <p>Rec. 709 (approximated by 16 control points):</p> 4124 * <p><img alt="Rec. 709 tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/rec709_tonemap.png" /></p> 4125 * <p>Note that above figures show a 16 control points approximation of preset 4126 * curves. Camera devices may apply a different approximation to the curve.</p> 4127 * <p><b>Possible values:</b> 4128 * <ul> 4129 * <li>{@link #TONEMAP_PRESET_CURVE_SRGB SRGB}</li> 4130 * <li>{@link #TONEMAP_PRESET_CURVE_REC709 REC709}</li> 4131 * </ul></p> 4132 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 4133 * 4134 * @see CaptureRequest#TONEMAP_MODE 4135 * @see #TONEMAP_PRESET_CURVE_SRGB 4136 * @see #TONEMAP_PRESET_CURVE_REC709 4137 */ 4138 @PublicKey 4139 public static final Key<Integer> TONEMAP_PRESET_CURVE = 4140 new Key<Integer>("android.tonemap.presetCurve", int.class); 4141 4142 /** 4143 * <p>This LED is nominally used to indicate to the user 4144 * that the camera is powered on and may be streaming images back to the 4145 * Application Processor. In certain rare circumstances, the OS may 4146 * disable this when video is processed locally and not transmitted to 4147 * any untrusted applications.</p> 4148 * <p>In particular, the LED <em>must</em> always be on when the data could be 4149 * transmitted off the device. The LED <em>should</em> always be on whenever 4150 * data is stored locally on the device.</p> 4151 * <p>The LED <em>may</em> be off if a trusted application is using the data that 4152 * doesn't violate the above rules.</p> 4153 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 4154 * @hide 4155 */ 4156 public static final Key<Boolean> LED_TRANSMIT = 4157 new Key<Boolean>("android.led.transmit", boolean.class); 4158 4159 /** 4160 * <p>Whether black-level compensation is locked 4161 * to its current values, or is free to vary.</p> 4162 * <p>Whether the black level offset was locked for this frame. Should be 4163 * ON if {@link CaptureRequest#BLACK_LEVEL_LOCK android.blackLevel.lock} was ON in the capture request, unless 4164 * a change in other capture settings forced the camera device to 4165 * perform a black level reset.</p> 4166 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 4167 * <p><b>Full capability</b> - 4168 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 4169 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 4170 * 4171 * @see CaptureRequest#BLACK_LEVEL_LOCK 4172 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 4173 */ 4174 @PublicKey 4175 public static final Key<Boolean> BLACK_LEVEL_LOCK = 4176 new Key<Boolean>("android.blackLevel.lock", boolean.class); 4177 4178 /** 4179 * <p>The frame number corresponding to the last request 4180 * with which the output result (metadata + buffers) has been fully 4181 * synchronized.</p> 4182 * <p>When a request is submitted to the camera device, there is usually a 4183 * delay of several frames before the controls get applied. A camera 4184 * device may either choose to account for this delay by implementing a 4185 * pipeline and carefully submit well-timed atomic control updates, or 4186 * it may start streaming control changes that span over several frame 4187 * boundaries.</p> 4188 * <p>In the latter case, whenever a request's settings change relative to 4189 * the previous submitted request, the full set of changes may take 4190 * multiple frame durations to fully take effect. Some settings may 4191 * take effect sooner (in less frame durations) than others.</p> 4192 * <p>While a set of control changes are being propagated, this value 4193 * will be CONVERGING.</p> 4194 * <p>Once it is fully known that a set of control changes have been 4195 * finished propagating, and the resulting updated control settings 4196 * have been read back by the camera device, this value will be set 4197 * to a non-negative frame number (corresponding to the request to 4198 * which the results have synchronized to).</p> 4199 * <p>Older camera device implementations may not have a way to detect 4200 * when all camera controls have been applied, and will always set this 4201 * value to UNKNOWN.</p> 4202 * <p>FULL capability devices will always have this value set to the 4203 * frame number of the request corresponding to this result.</p> 4204 * <p><em>Further details</em>:</p> 4205 * <ul> 4206 * <li>Whenever a request differs from the last request, any future 4207 * results not yet returned may have this value set to CONVERGING (this 4208 * could include any in-progress captures not yet returned by the camera 4209 * device, for more details see pipeline considerations below).</li> 4210 * <li>Submitting a series of multiple requests that differ from the 4211 * previous request (e.g. r1, r2, r3 s.t. r1 != r2 != r3) 4212 * moves the new synchronization frame to the last non-repeating 4213 * request (using the smallest frame number from the contiguous list of 4214 * repeating requests).</li> 4215 * <li>Submitting the same request repeatedly will not change this value 4216 * to CONVERGING, if it was already a non-negative value.</li> 4217 * <li>When this value changes to non-negative, that means that all of the 4218 * metadata controls from the request have been applied, all of the 4219 * metadata controls from the camera device have been read to the 4220 * updated values (into the result), and all of the graphics buffers 4221 * corresponding to this result are also synchronized to the request.</li> 4222 * </ul> 4223 * <p><em>Pipeline considerations</em>:</p> 4224 * <p>Submitting a request with updated controls relative to the previously 4225 * submitted requests may also invalidate the synchronization state 4226 * of all the results corresponding to currently in-flight requests.</p> 4227 * <p>In other words, results for this current request and up to 4228 * {@link CameraCharacteristics#REQUEST_PIPELINE_MAX_DEPTH android.request.pipelineMaxDepth} prior requests may have their 4229 * android.sync.frameNumber change to CONVERGING.</p> 4230 * <p><b>Possible values:</b> 4231 * <ul> 4232 * <li>{@link #SYNC_FRAME_NUMBER_CONVERGING CONVERGING}</li> 4233 * <li>{@link #SYNC_FRAME_NUMBER_UNKNOWN UNKNOWN}</li> 4234 * </ul></p> 4235 * <p><b>Available values for this device:</b><br> 4236 * Either a non-negative value corresponding to a 4237 * <code>frame_number</code>, or one of the two enums (CONVERGING / UNKNOWN).</p> 4238 * <p>This key is available on all devices.</p> 4239 * 4240 * @see CameraCharacteristics#REQUEST_PIPELINE_MAX_DEPTH 4241 * @see #SYNC_FRAME_NUMBER_CONVERGING 4242 * @see #SYNC_FRAME_NUMBER_UNKNOWN 4243 * @hide 4244 */ 4245 public static final Key<Long> SYNC_FRAME_NUMBER = 4246 new Key<Long>("android.sync.frameNumber", long.class); 4247 4248 /** 4249 * <p>The amount of exposure time increase factor applied to the original output 4250 * frame by the application processing before sending for reprocessing.</p> 4251 * <p>This is optional, and will be supported if the camera device supports YUV_REPROCESSING 4252 * capability ({@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} contains YUV_REPROCESSING).</p> 4253 * <p>For some YUV reprocessing use cases, the application may choose to filter the original 4254 * output frames to effectively reduce the noise to the same level as a frame that was 4255 * captured with longer exposure time. To be more specific, assuming the original captured 4256 * images were captured with a sensitivity of S and an exposure time of T, the model in 4257 * the camera device is that the amount of noise in the image would be approximately what 4258 * would be expected if the original capture parameters had been a sensitivity of 4259 * S/effectiveExposureFactor and an exposure time of T*effectiveExposureFactor, rather 4260 * than S and T respectively. If the captured images were processed by the application 4261 * before being sent for reprocessing, then the application may have used image processing 4262 * algorithms and/or multi-frame image fusion to reduce the noise in the 4263 * application-processed images (input images). By using the effectiveExposureFactor 4264 * control, the application can communicate to the camera device the actual noise level 4265 * improvement in the application-processed image. With this information, the camera 4266 * device can select appropriate noise reduction and edge enhancement parameters to avoid 4267 * excessive noise reduction ({@link CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode}) and insufficient edge 4268 * enhancement ({@link CaptureRequest#EDGE_MODE android.edge.mode}) being applied to the reprocessed frames.</p> 4269 * <p>For example, for multi-frame image fusion use case, the application may fuse 4270 * multiple output frames together to a final frame for reprocessing. When N image are 4271 * fused into 1 image for reprocessing, the exposure time increase factor could be up to 4272 * square root of N (based on a simple photon shot noise model). The camera device will 4273 * adjust the reprocessing noise reduction and edge enhancement parameters accordingly to 4274 * produce the best quality images.</p> 4275 * <p>This is relative factor, 1.0 indicates the application hasn't processed the input 4276 * buffer in a way that affects its effective exposure time.</p> 4277 * <p>This control is only effective for YUV reprocessing capture request. For noise 4278 * reduction reprocessing, it is only effective when <code>{@link CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode} != OFF</code>. 4279 * Similarly, for edge enhancement reprocessing, it is only effective when 4280 * <code>{@link CaptureRequest#EDGE_MODE android.edge.mode} != OFF</code>.</p> 4281 * <p><b>Units</b>: Relative exposure time increase factor.</p> 4282 * <p><b>Range of valid values:</b><br> 4283 * >= 1.0</p> 4284 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 4285 * <p><b>Limited capability</b> - 4286 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 4287 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 4288 * 4289 * @see CaptureRequest#EDGE_MODE 4290 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 4291 * @see CaptureRequest#NOISE_REDUCTION_MODE 4292 * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES 4293 */ 4294 @PublicKey 4295 public static final Key<Float> REPROCESS_EFFECTIVE_EXPOSURE_FACTOR = 4296 new Key<Float>("android.reprocess.effectiveExposureFactor", float.class); 4297 4298 /*~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~ 4299 * End generated code 4300 *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~O@*/ 4301 4302 4303 4304 } 4305
