1/* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.hardware.camera2; 18 19import android.annotation.NonNull; 20import android.annotation.Nullable; 21import android.hardware.camera2.impl.CameraMetadataNative; 22import android.hardware.camera2.impl.PublicKey; 23import android.hardware.camera2.impl.SyntheticKey; 24import android.hardware.camera2.utils.HashCodeHelpers; 25import android.hardware.camera2.utils.TypeReference; 26import android.os.Parcel; 27import android.os.Parcelable; 28import android.view.Surface; 29 30import java.util.Collection; 31import java.util.Collections; 32import java.util.HashSet; 33import java.util.List; 34import java.util.Objects; 35 36 37/** 38 * <p>An immutable package of settings and outputs needed to capture a single 39 * image from the camera device.</p> 40 * 41 * <p>Contains the configuration for the capture hardware (sensor, lens, flash), 42 * the processing pipeline, the control algorithms, and the output buffers. Also 43 * contains the list of target Surfaces to send image data to for this 44 * capture.</p> 45 * 46 * <p>CaptureRequests can be created by using a {@link Builder} instance, 47 * obtained by calling {@link CameraDevice#createCaptureRequest}</p> 48 * 49 * <p>CaptureRequests are given to {@link CameraCaptureSession#capture} or 50 * {@link CameraCaptureSession#setRepeatingRequest} to capture images from a camera.</p> 51 * 52 * <p>Each request can specify a different subset of target Surfaces for the 53 * camera to send the captured data to. All the surfaces used in a request must 54 * be part of the surface list given to the last call to 55 * {@link CameraDevice#createCaptureSession}, when the request is submitted to the 56 * session.</p> 57 * 58 * <p>For example, a request meant for repeating preview might only include the 59 * Surface for the preview SurfaceView or SurfaceTexture, while a 60 * high-resolution still capture would also include a Surface from a ImageReader 61 * configured for high-resolution JPEG images.</p> 62 * 63 * <p>A reprocess capture request allows a previously-captured image from the camera device to be 64 * sent back to the device for further processing. It can be created with 65 * {@link CameraDevice#createReprocessCaptureRequest}, and used with a reprocessable capture session 66 * created with {@link CameraDevice#createReprocessableCaptureSession}.</p> 67 * 68 * @see CameraCaptureSession#capture 69 * @see CameraCaptureSession#setRepeatingRequest 70 * @see CameraCaptureSession#captureBurst 71 * @see CameraCaptureSession#setRepeatingBurst 72 * @see CameraDevice#createCaptureRequest 73 * @see CameraDevice#createReprocessCaptureRequest 74 */ 75public final class CaptureRequest extends CameraMetadata<CaptureRequest.Key<?>> 76 implements Parcelable { 77 78 /** 79 * A {@code Key} is used to do capture request field lookups with 80 * {@link CaptureResult#get} or to set fields with 81 * {@link CaptureRequest.Builder#set(Key, Object)}. 82 * 83 * <p>For example, to set the crop rectangle for the next capture: 84 * <code><pre> 85 * Rect cropRectangle = new Rect(0, 0, 640, 480); 86 * captureRequestBuilder.set(SCALER_CROP_REGION, cropRectangle); 87 * </pre></code> 88 * </p> 89 * 90 * <p>To enumerate over all possible keys for {@link CaptureResult}, see 91 * {@link CameraCharacteristics#getAvailableCaptureResultKeys}.</p> 92 * 93 * @see CaptureResult#get 94 * @see CameraCharacteristics#getAvailableCaptureResultKeys 95 */ 96 public final static class Key<T> { 97 private final CameraMetadataNative.Key<T> mKey; 98 99 /** 100 * Visible for testing and vendor extensions only. 101 * 102 * @hide 103 */ 104 public Key(String name, Class<T> type, long vendorId) { 105 mKey = new CameraMetadataNative.Key<T>(name, type, vendorId); 106 } 107 108 /** 109 * Visible for testing and vendor extensions only. 110 * 111 * @hide 112 */ 113 public Key(String name, Class<T> type) { 114 mKey = new CameraMetadataNative.Key<T>(name, type); 115 } 116 117 /** 118 * Visible for testing and vendor extensions only. 119 * 120 * @hide 121 */ 122 public Key(String name, TypeReference<T> typeReference) { 123 mKey = new CameraMetadataNative.Key<T>(name, typeReference); 124 } 125 126 /** 127 * Return a camelCase, period separated name formatted like: 128 * {@code "root.section[.subsections].name"}. 129 * 130 * <p>Built-in keys exposed by the Android SDK are always prefixed with {@code "android."}; 131 * keys that are device/platform-specific are prefixed with {@code "com."}.</p> 132 * 133 * <p>For example, {@code CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP} would 134 * have a name of {@code "android.scaler.streamConfigurationMap"}; whereas a device 135 * specific key might look like {@code "com.google.nexus.data.private"}.</p> 136 * 137 * @return String representation of the key name 138 */ 139 @NonNull 140 public String getName() { 141 return mKey.getName(); 142 } 143 144 /** 145 * Return vendor tag id. 146 * 147 * @hide 148 */ 149 public long getVendorId() { 150 return mKey.getVendorId(); 151 } 152 153 /** 154 * {@inheritDoc} 155 */ 156 @Override 157 public final int hashCode() { 158 return mKey.hashCode(); 159 } 160 161 /** 162 * {@inheritDoc} 163 */ 164 @SuppressWarnings("unchecked") 165 @Override 166 public final boolean equals(Object o) { 167 return o instanceof Key && ((Key<T>)o).mKey.equals(mKey); 168 } 169 170 /** 171 * Return this {@link Key} as a string representation. 172 * 173 * <p>{@code "CaptureRequest.Key(%s)"}, where {@code %s} represents 174 * the name of this key as returned by {@link #getName}.</p> 175 * 176 * @return string representation of {@link Key} 177 */ 178 @NonNull 179 @Override 180 public String toString() { 181 return String.format("CaptureRequest.Key(%s)", mKey.getName()); 182 } 183 184 /** 185 * Visible for CameraMetadataNative implementation only; do not use. 186 * 187 * TODO: Make this private or remove it altogether. 188 * 189 * @hide 190 */ 191 public CameraMetadataNative.Key<T> getNativeKey() { 192 return mKey; 193 } 194 195 @SuppressWarnings({ "unchecked" }) 196 /*package*/ Key(CameraMetadataNative.Key<?> nativeKey) { 197 mKey = (CameraMetadataNative.Key<T>) nativeKey; 198 } 199 } 200 201 private final HashSet<Surface> mSurfaceSet; 202 private final CameraMetadataNative mSettings; 203 private boolean mIsReprocess; 204 // If this request is part of constrained high speed request list that was created by 205 // {@link android.hardware.camera2.CameraConstrainedHighSpeedCaptureSession#createHighSpeedRequestList} 206 private boolean mIsPartOfCHSRequestList = false; 207 // Each reprocess request must be tied to a reprocessable session ID. 208 // Valid only for reprocess requests (mIsReprocess == true). 209 private int mReprocessableSessionId; 210 211 private Object mUserTag; 212 213 /** 214 * Construct empty request. 215 * 216 * Used by Binder to unparcel this object only. 217 */ 218 private CaptureRequest() { 219 mSettings = new CameraMetadataNative(); 220 setNativeInstance(mSettings); 221 mSurfaceSet = new HashSet<Surface>(); 222 mIsReprocess = false; 223 mReprocessableSessionId = CameraCaptureSession.SESSION_ID_NONE; 224 } 225 226 /** 227 * Clone from source capture request. 228 * 229 * Used by the Builder to create an immutable copy. 230 */ 231 @SuppressWarnings("unchecked") 232 private CaptureRequest(CaptureRequest source) { 233 mSettings = new CameraMetadataNative(source.mSettings); 234 setNativeInstance(mSettings); 235 mSurfaceSet = (HashSet<Surface>) source.mSurfaceSet.clone(); 236 mIsReprocess = source.mIsReprocess; 237 mIsPartOfCHSRequestList = source.mIsPartOfCHSRequestList; 238 mReprocessableSessionId = source.mReprocessableSessionId; 239 mUserTag = source.mUserTag; 240 } 241 242 /** 243 * Take ownership of passed-in settings. 244 * 245 * Used by the Builder to create a mutable CaptureRequest. 246 * 247 * @param settings Settings for this capture request. 248 * @param isReprocess Indicates whether to create a reprocess capture request. {@code true} 249 * to create a reprocess capture request. {@code false} to create a regular 250 * capture request. 251 * @param reprocessableSessionId The ID of the camera capture session this capture is created 252 * for. This is used to validate if the application submits a 253 * reprocess capture request to the same session where 254 * the {@link TotalCaptureResult}, used to create the reprocess 255 * capture, came from. 256 * 257 * @throws IllegalArgumentException If creating a reprocess capture request with an invalid 258 * reprocessableSessionId. 259 * 260 * @see CameraDevice#createReprocessCaptureRequest 261 */ 262 private CaptureRequest(CameraMetadataNative settings, boolean isReprocess, 263 int reprocessableSessionId) { 264 mSettings = CameraMetadataNative.move(settings); 265 setNativeInstance(mSettings); 266 mSurfaceSet = new HashSet<Surface>(); 267 mIsReprocess = isReprocess; 268 if (isReprocess) { 269 if (reprocessableSessionId == CameraCaptureSession.SESSION_ID_NONE) { 270 throw new IllegalArgumentException("Create a reprocess capture request with an " + 271 "invalid session ID: " + reprocessableSessionId); 272 } 273 mReprocessableSessionId = reprocessableSessionId; 274 } else { 275 mReprocessableSessionId = CameraCaptureSession.SESSION_ID_NONE; 276 } 277 } 278 279 /** 280 * Get a capture request field value. 281 * 282 * <p>The field definitions can be found in {@link CaptureRequest}.</p> 283 * 284 * <p>Querying the value for the same key more than once will return a value 285 * which is equal to the previous queried value.</p> 286 * 287 * @throws IllegalArgumentException if the key was not valid 288 * 289 * @param key The result field to read. 290 * @return The value of that key, or {@code null} if the field is not set. 291 */ 292 @Nullable 293 public <T> T get(Key<T> key) { 294 return mSettings.get(key); 295 } 296 297 /** 298 * {@inheritDoc} 299 * @hide 300 */ 301 @SuppressWarnings("unchecked") 302 @Override 303 protected <T> T getProtected(Key<?> key) { 304 return (T) mSettings.get(key); 305 } 306 307 /** 308 * {@inheritDoc} 309 * @hide 310 */ 311 @SuppressWarnings("unchecked") 312 @Override 313 protected Class<Key<?>> getKeyClass() { 314 Object thisClass = Key.class; 315 return (Class<Key<?>>)thisClass; 316 } 317 318 /** 319 * {@inheritDoc} 320 */ 321 @Override 322 @NonNull 323 public List<Key<?>> getKeys() { 324 // Force the javadoc for this function to show up on the CaptureRequest page 325 return super.getKeys(); 326 } 327 328 /** 329 * Retrieve the tag for this request, if any. 330 * 331 * <p>This tag is not used for anything by the camera device, but can be 332 * used by an application to easily identify a CaptureRequest when it is 333 * returned by 334 * {@link CameraCaptureSession.CaptureCallback#onCaptureCompleted CaptureCallback.onCaptureCompleted} 335 * </p> 336 * 337 * @return the last tag Object set on this request, or {@code null} if 338 * no tag has been set. 339 * @see Builder#setTag 340 */ 341 @Nullable 342 public Object getTag() { 343 return mUserTag; 344 } 345 346 /** 347 * Determine if this is a reprocess capture request. 348 * 349 * <p>A reprocess capture request produces output images from an input buffer from the 350 * {@link CameraCaptureSession}'s input {@link Surface}. A reprocess capture request can be 351 * created by {@link CameraDevice#createReprocessCaptureRequest}.</p> 352 * 353 * @return {@code true} if this is a reprocess capture request. {@code false} if this is not a 354 * reprocess capture request. 355 * 356 * @see CameraDevice#createReprocessCaptureRequest 357 */ 358 public boolean isReprocess() { 359 return mIsReprocess; 360 } 361 362 /** 363 * <p>Determine if this request is part of a constrained high speed request list that was 364 * created by 365 * {@link android.hardware.camera2.CameraConstrainedHighSpeedCaptureSession#createHighSpeedRequestList}. 366 * A constrained high speed request list contains some constrained high speed capture requests 367 * with certain interleaved pattern that is suitable for high speed preview/video streaming. An 368 * active constrained high speed capture session only accepts constrained high speed request 369 * lists. This method can be used to do the sanity check when a constrained high speed capture 370 * session receives a request list via {@link CameraCaptureSession#setRepeatingBurst} or 371 * {@link CameraCaptureSession#captureBurst}. </p> 372 * 373 * 374 * @return {@code true} if this request is part of a constrained high speed request list, 375 * {@code false} otherwise. 376 * 377 * @hide 378 */ 379 public boolean isPartOfCRequestList() { 380 return mIsPartOfCHSRequestList; 381 } 382 383 /** 384 * Returns a copy of the underlying {@link CameraMetadataNative}. 385 * @hide 386 */ 387 public CameraMetadataNative getNativeCopy() { 388 return new CameraMetadataNative(mSettings); 389 } 390 391 /** 392 * Get the reprocessable session ID this reprocess capture request is associated with. 393 * 394 * @return the reprocessable session ID this reprocess capture request is associated with 395 * 396 * @throws IllegalStateException if this capture request is not a reprocess capture request. 397 * @hide 398 */ 399 public int getReprocessableSessionId() { 400 if (mIsReprocess == false || 401 mReprocessableSessionId == CameraCaptureSession.SESSION_ID_NONE) { 402 throw new IllegalStateException("Getting the reprocessable session ID for a "+ 403 "non-reprocess capture request is illegal."); 404 } 405 return mReprocessableSessionId; 406 } 407 408 /** 409 * Determine whether this CaptureRequest is equal to another CaptureRequest. 410 * 411 * <p>A request is considered equal to another is if it's set of key/values is equal, it's 412 * list of output surfaces is equal, the user tag is equal, and the return values of 413 * isReprocess() are equal.</p> 414 * 415 * @param other Another instance of CaptureRequest. 416 * 417 * @return True if the requests are the same, false otherwise. 418 */ 419 @Override 420 public boolean equals(Object other) { 421 return other instanceof CaptureRequest 422 && equals((CaptureRequest)other); 423 } 424 425 private boolean equals(CaptureRequest other) { 426 return other != null 427 && Objects.equals(mUserTag, other.mUserTag) 428 && mSurfaceSet.equals(other.mSurfaceSet) 429 && mSettings.equals(other.mSettings) 430 && mIsReprocess == other.mIsReprocess 431 && mReprocessableSessionId == other.mReprocessableSessionId; 432 } 433 434 @Override 435 public int hashCode() { 436 return HashCodeHelpers.hashCodeGeneric(mSettings, mSurfaceSet, mUserTag); 437 } 438 439 public static final Parcelable.Creator<CaptureRequest> CREATOR = 440 new Parcelable.Creator<CaptureRequest>() { 441 @Override 442 public CaptureRequest createFromParcel(Parcel in) { 443 CaptureRequest request = new CaptureRequest(); 444 request.readFromParcel(in); 445 446 return request; 447 } 448 449 @Override 450 public CaptureRequest[] newArray(int size) { 451 return new CaptureRequest[size]; 452 } 453 }; 454 455 /** 456 * Expand this object from a Parcel. 457 * Hidden since this breaks the immutability of CaptureRequest, but is 458 * needed to receive CaptureRequests with aidl. 459 * 460 * @param in The parcel from which the object should be read 461 * @hide 462 */ 463 private void readFromParcel(Parcel in) { 464 mSettings.readFromParcel(in); 465 setNativeInstance(mSettings); 466 467 mSurfaceSet.clear(); 468 469 Parcelable[] parcelableArray = in.readParcelableArray(Surface.class.getClassLoader()); 470 471 if (parcelableArray == null) { 472 return; 473 } 474 475 for (Parcelable p : parcelableArray) { 476 Surface s = (Surface) p; 477 mSurfaceSet.add(s); 478 } 479 480 mIsReprocess = (in.readInt() == 0) ? false : true; 481 mReprocessableSessionId = CameraCaptureSession.SESSION_ID_NONE; 482 } 483 484 @Override 485 public int describeContents() { 486 return 0; 487 } 488 489 @Override 490 public void writeToParcel(Parcel dest, int flags) { 491 mSettings.writeToParcel(dest, flags); 492 dest.writeParcelableArray(mSurfaceSet.toArray(new Surface[mSurfaceSet.size()]), flags); 493 dest.writeInt(mIsReprocess ? 1 : 0); 494 } 495 496 /** 497 * @hide 498 */ 499 public boolean containsTarget(Surface surface) { 500 return mSurfaceSet.contains(surface); 501 } 502 503 /** 504 * @hide 505 */ 506 public Collection<Surface> getTargets() { 507 return Collections.unmodifiableCollection(mSurfaceSet); 508 } 509 510 /** 511 * A builder for capture requests. 512 * 513 * <p>To obtain a builder instance, use the 514 * {@link CameraDevice#createCaptureRequest} method, which initializes the 515 * request fields to one of the templates defined in {@link CameraDevice}. 516 * 517 * @see CameraDevice#createCaptureRequest 518 * @see CameraDevice#TEMPLATE_PREVIEW 519 * @see CameraDevice#TEMPLATE_RECORD 520 * @see CameraDevice#TEMPLATE_STILL_CAPTURE 521 * @see CameraDevice#TEMPLATE_VIDEO_SNAPSHOT 522 * @see CameraDevice#TEMPLATE_MANUAL 523 */ 524 public final static class Builder { 525 526 private final CaptureRequest mRequest; 527 528 /** 529 * Initialize the builder using the template; the request takes 530 * ownership of the template. 531 * 532 * @param template Template settings for this capture request. 533 * @param reprocess Indicates whether to create a reprocess capture request. {@code true} 534 * to create a reprocess capture request. {@code false} to create a regular 535 * capture request. 536 * @param reprocessableSessionId The ID of the camera capture session this capture is 537 * created for. This is used to validate if the application 538 * submits a reprocess capture request to the same session 539 * where the {@link TotalCaptureResult}, used to create the 540 * reprocess capture, came from. 541 * 542 * @throws IllegalArgumentException If creating a reprocess capture request with an invalid 543 * reprocessableSessionId. 544 * @hide 545 */ 546 public Builder(CameraMetadataNative template, boolean reprocess, 547 int reprocessableSessionId) { 548 mRequest = new CaptureRequest(template, reprocess, reprocessableSessionId); 549 } 550 551 /** 552 * <p>Add a surface to the list of targets for this request</p> 553 * 554 * <p>The Surface added must be one of the surfaces included in the most 555 * recent call to {@link CameraDevice#createCaptureSession}, when the 556 * request is given to the camera device.</p> 557 * 558 * <p>Adding a target more than once has no effect.</p> 559 * 560 * @param outputTarget Surface to use as an output target for this request 561 */ 562 public void addTarget(@NonNull Surface outputTarget) { 563 mRequest.mSurfaceSet.add(outputTarget); 564 } 565 566 /** 567 * <p>Remove a surface from the list of targets for this request.</p> 568 * 569 * <p>Removing a target that is not currently added has no effect.</p> 570 * 571 * @param outputTarget Surface to use as an output target for this request 572 */ 573 public void removeTarget(@NonNull Surface outputTarget) { 574 mRequest.mSurfaceSet.remove(outputTarget); 575 } 576 577 /** 578 * Set a capture request field to a value. The field definitions can be 579 * found in {@link CaptureRequest}. 580 * 581 * <p>Setting a field to {@code null} will remove that field from the capture request. 582 * Unless the field is optional, removing it will likely produce an error from the camera 583 * device when the request is submitted.</p> 584 * 585 * @param key The metadata field to write. 586 * @param value The value to set the field to, which must be of a matching 587 * type to the key. 588 */ 589 public <T> void set(@NonNull Key<T> key, T value) { 590 mRequest.mSettings.set(key, value); 591 } 592 593 /** 594 * Get a capture request field value. The field definitions can be 595 * found in {@link CaptureRequest}. 596 * 597 * @throws IllegalArgumentException if the key was not valid 598 * 599 * @param key The metadata field to read. 600 * @return The value of that key, or {@code null} if the field is not set. 601 */ 602 @Nullable 603 public <T> T get(Key<T> key) { 604 return mRequest.mSettings.get(key); 605 } 606 607 /** 608 * Set a tag for this request. 609 * 610 * <p>This tag is not used for anything by the camera device, but can be 611 * used by an application to easily identify a CaptureRequest when it is 612 * returned by 613 * {@link CameraCaptureSession.CaptureCallback#onCaptureCompleted CaptureCallback.onCaptureCompleted} 614 * 615 * @param tag an arbitrary Object to store with this request 616 * @see CaptureRequest#getTag 617 */ 618 public void setTag(@Nullable Object tag) { 619 mRequest.mUserTag = tag; 620 } 621 622 /** 623 * <p>Mark this request as part of a constrained high speed request list created by 624 * {@link android.hardware.camera2.CameraConstrainedHighSpeedCaptureSession#createHighSpeedRequestList}. 625 * A constrained high speed request list contains some constrained high speed capture 626 * requests with certain interleaved pattern that is suitable for high speed preview/video 627 * streaming.</p> 628 * 629 * @hide 630 */ 631 public void setPartOfCHSRequestList(boolean partOfCHSList) { 632 mRequest.mIsPartOfCHSRequestList = partOfCHSList; 633 } 634 635 /** 636 * Build a request using the current target Surfaces and settings. 637 * <p>Note that, although it is possible to create a {@code CaptureRequest} with no target 638 * {@link Surface}s, passing such a request into {@link CameraCaptureSession#capture}, 639 * {@link CameraCaptureSession#captureBurst}, 640 * {@link CameraCaptureSession#setRepeatingBurst}, or 641 * {@link CameraCaptureSession#setRepeatingRequest} will cause that method to throw an 642 * {@link IllegalArgumentException}.</p> 643 * 644 * @return A new capture request instance, ready for submission to the 645 * camera device. 646 */ 647 @NonNull 648 public CaptureRequest build() { 649 return new CaptureRequest(mRequest); 650 } 651 652 /** 653 * @hide 654 */ 655 public boolean isEmpty() { 656 return mRequest.mSettings.isEmpty(); 657 } 658 659 } 660 661 /*@O~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~ 662 * The key entries below this point are generated from metadata 663 * definitions in /system/media/camera/docs. Do not modify by hand or 664 * modify the comment blocks at the start or end. 665 *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~*/ 666 667 /** 668 * <p>The mode control selects how the image data is converted from the 669 * sensor's native color into linear sRGB color.</p> 670 * <p>When auto-white balance (AWB) is enabled with {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode}, this 671 * control is overridden by the AWB routine. When AWB is disabled, the 672 * application controls how the color mapping is performed.</p> 673 * <p>We define the expected processing pipeline below. For consistency 674 * across devices, this is always the case with TRANSFORM_MATRIX.</p> 675 * <p>When either FULL or HIGH_QUALITY is used, the camera device may 676 * do additional processing but {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} and 677 * {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform} will still be provided by the 678 * camera device (in the results) and be roughly correct.</p> 679 * <p>Switching to TRANSFORM_MATRIX and using the data provided from 680 * FAST or HIGH_QUALITY will yield a picture with the same white point 681 * as what was produced by the camera device in the earlier frame.</p> 682 * <p>The expected processing pipeline is as follows:</p> 683 * <p><img alt="White balance processing pipeline" src="../../../../images/camera2/metadata/android.colorCorrection.mode/processing_pipeline.png" /></p> 684 * <p>The white balance is encoded by two values, a 4-channel white-balance 685 * gain vector (applied in the Bayer domain), and a 3x3 color transform 686 * matrix (applied after demosaic).</p> 687 * <p>The 4-channel white-balance gains are defined as:</p> 688 * <pre><code>{@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} = [ R G_even G_odd B ] 689 * </code></pre> 690 * <p>where <code>G_even</code> is the gain for green pixels on even rows of the 691 * output, and <code>G_odd</code> is the gain for green pixels on the odd rows. 692 * These may be identical for a given camera device implementation; if 693 * the camera device does not support a separate gain for even/odd green 694 * channels, it will use the <code>G_even</code> value, and write <code>G_odd</code> equal to 695 * <code>G_even</code> in the output result metadata.</p> 696 * <p>The matrices for color transforms are defined as a 9-entry vector:</p> 697 * <pre><code>{@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform} = [ I0 I1 I2 I3 I4 I5 I6 I7 I8 ] 698 * </code></pre> 699 * <p>which define a transform from input sensor colors, <code>P_in = [ r g b ]</code>, 700 * to output linear sRGB, <code>P_out = [ r' g' b' ]</code>,</p> 701 * <p>with colors as follows:</p> 702 * <pre><code>r' = I0r + I1g + I2b 703 * g' = I3r + I4g + I5b 704 * b' = I6r + I7g + I8b 705 * </code></pre> 706 * <p>Both the input and output value ranges must match. Overflow/underflow 707 * values are clipped to fit within the range.</p> 708 * <p><b>Possible values:</b> 709 * <ul> 710 * <li>{@link #COLOR_CORRECTION_MODE_TRANSFORM_MATRIX TRANSFORM_MATRIX}</li> 711 * <li>{@link #COLOR_CORRECTION_MODE_FAST FAST}</li> 712 * <li>{@link #COLOR_CORRECTION_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 713 * </ul></p> 714 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 715 * <p><b>Full capability</b> - 716 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 717 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 718 * 719 * @see CaptureRequest#COLOR_CORRECTION_GAINS 720 * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM 721 * @see CaptureRequest#CONTROL_AWB_MODE 722 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 723 * @see #COLOR_CORRECTION_MODE_TRANSFORM_MATRIX 724 * @see #COLOR_CORRECTION_MODE_FAST 725 * @see #COLOR_CORRECTION_MODE_HIGH_QUALITY 726 */ 727 @PublicKey 728 public static final Key<Integer> COLOR_CORRECTION_MODE = 729 new Key<Integer>("android.colorCorrection.mode", int.class); 730 731 /** 732 * <p>A color transform matrix to use to transform 733 * from sensor RGB color space to output linear sRGB color space.</p> 734 * <p>This matrix is either set by the camera device when the request 735 * {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} is not TRANSFORM_MATRIX, or 736 * directly by the application in the request when the 737 * {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} is TRANSFORM_MATRIX.</p> 738 * <p>In the latter case, the camera device may round the matrix to account 739 * for precision issues; the final rounded matrix should be reported back 740 * in this matrix result metadata. The transform should keep the magnitude 741 * of the output color values within <code>[0, 1.0]</code> (assuming input color 742 * values is within the normalized range <code>[0, 1.0]</code>), or clipping may occur.</p> 743 * <p>The valid range of each matrix element varies on different devices, but 744 * values within [-1.5, 3.0] are guaranteed not to be clipped.</p> 745 * <p><b>Units</b>: Unitless scale factors</p> 746 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 747 * <p><b>Full capability</b> - 748 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 749 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 750 * 751 * @see CaptureRequest#COLOR_CORRECTION_MODE 752 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 753 */ 754 @PublicKey 755 public static final Key<android.hardware.camera2.params.ColorSpaceTransform> COLOR_CORRECTION_TRANSFORM = 756 new Key<android.hardware.camera2.params.ColorSpaceTransform>("android.colorCorrection.transform", android.hardware.camera2.params.ColorSpaceTransform.class); 757 758 /** 759 * <p>Gains applying to Bayer raw color channels for 760 * white-balance.</p> 761 * <p>These per-channel gains are either set by the camera device 762 * when the request {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} is not 763 * TRANSFORM_MATRIX, or directly by the application in the 764 * request when the {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} is 765 * TRANSFORM_MATRIX.</p> 766 * <p>The gains in the result metadata are the gains actually 767 * applied by the camera device to the current frame.</p> 768 * <p>The valid range of gains varies on different devices, but gains 769 * between [1.0, 3.0] are guaranteed not to be clipped. Even if a given 770 * device allows gains below 1.0, this is usually not recommended because 771 * this can create color artifacts.</p> 772 * <p><b>Units</b>: Unitless gain factors</p> 773 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 774 * <p><b>Full capability</b> - 775 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 776 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 777 * 778 * @see CaptureRequest#COLOR_CORRECTION_MODE 779 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 780 */ 781 @PublicKey 782 public static final Key<android.hardware.camera2.params.RggbChannelVector> COLOR_CORRECTION_GAINS = 783 new Key<android.hardware.camera2.params.RggbChannelVector>("android.colorCorrection.gains", android.hardware.camera2.params.RggbChannelVector.class); 784 785 /** 786 * <p>Mode of operation for the chromatic aberration correction algorithm.</p> 787 * <p>Chromatic (color) aberration is caused by the fact that different wavelengths of light 788 * can not focus on the same point after exiting from the lens. This metadata defines 789 * the high level control of chromatic aberration correction algorithm, which aims to 790 * minimize the chromatic artifacts that may occur along the object boundaries in an 791 * image.</p> 792 * <p>FAST/HIGH_QUALITY both mean that camera device determined aberration 793 * correction will be applied. HIGH_QUALITY mode indicates that the camera device will 794 * use the highest-quality aberration correction algorithms, even if it slows down 795 * capture rate. FAST means the camera device will not slow down capture rate when 796 * applying aberration correction.</p> 797 * <p>LEGACY devices will always be in FAST mode.</p> 798 * <p><b>Possible values:</b> 799 * <ul> 800 * <li>{@link #COLOR_CORRECTION_ABERRATION_MODE_OFF OFF}</li> 801 * <li>{@link #COLOR_CORRECTION_ABERRATION_MODE_FAST FAST}</li> 802 * <li>{@link #COLOR_CORRECTION_ABERRATION_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 803 * </ul></p> 804 * <p><b>Available values for this device:</b><br> 805 * {@link CameraCharacteristics#COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES android.colorCorrection.availableAberrationModes}</p> 806 * <p>This key is available on all devices.</p> 807 * 808 * @see CameraCharacteristics#COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES 809 * @see #COLOR_CORRECTION_ABERRATION_MODE_OFF 810 * @see #COLOR_CORRECTION_ABERRATION_MODE_FAST 811 * @see #COLOR_CORRECTION_ABERRATION_MODE_HIGH_QUALITY 812 */ 813 @PublicKey 814 public static final Key<Integer> COLOR_CORRECTION_ABERRATION_MODE = 815 new Key<Integer>("android.colorCorrection.aberrationMode", int.class); 816 817 /** 818 * <p>The desired setting for the camera device's auto-exposure 819 * algorithm's antibanding compensation.</p> 820 * <p>Some kinds of lighting fixtures, such as some fluorescent 821 * lights, flicker at the rate of the power supply frequency 822 * (60Hz or 50Hz, depending on country). While this is 823 * typically not noticeable to a person, it can be visible to 824 * a camera device. If a camera sets its exposure time to the 825 * wrong value, the flicker may become visible in the 826 * viewfinder as flicker or in a final captured image, as a 827 * set of variable-brightness bands across the image.</p> 828 * <p>Therefore, the auto-exposure routines of camera devices 829 * include antibanding routines that ensure that the chosen 830 * exposure value will not cause such banding. The choice of 831 * exposure time depends on the rate of flicker, which the 832 * camera device can detect automatically, or the expected 833 * rate can be selected by the application using this 834 * control.</p> 835 * <p>A given camera device may not support all of the possible 836 * options for the antibanding mode. The 837 * {@link CameraCharacteristics#CONTROL_AE_AVAILABLE_ANTIBANDING_MODES android.control.aeAvailableAntibandingModes} key contains 838 * the available modes for a given camera device.</p> 839 * <p>AUTO mode is the default if it is available on given 840 * camera device. When AUTO mode is not available, the 841 * default will be either 50HZ or 60HZ, and both 50HZ 842 * and 60HZ will be available.</p> 843 * <p>If manual exposure control is enabled (by setting 844 * {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} or {@link CaptureRequest#CONTROL_MODE android.control.mode} to OFF), 845 * then this setting has no effect, and the application must 846 * ensure it selects exposure times that do not cause banding 847 * issues. The {@link CaptureResult#STATISTICS_SCENE_FLICKER android.statistics.sceneFlicker} key can assist 848 * the application in this.</p> 849 * <p><b>Possible values:</b> 850 * <ul> 851 * <li>{@link #CONTROL_AE_ANTIBANDING_MODE_OFF OFF}</li> 852 * <li>{@link #CONTROL_AE_ANTIBANDING_MODE_50HZ 50HZ}</li> 853 * <li>{@link #CONTROL_AE_ANTIBANDING_MODE_60HZ 60HZ}</li> 854 * <li>{@link #CONTROL_AE_ANTIBANDING_MODE_AUTO AUTO}</li> 855 * </ul></p> 856 * <p><b>Available values for this device:</b><br></p> 857 * <p>{@link CameraCharacteristics#CONTROL_AE_AVAILABLE_ANTIBANDING_MODES android.control.aeAvailableAntibandingModes}</p> 858 * <p>This key is available on all devices.</p> 859 * 860 * @see CameraCharacteristics#CONTROL_AE_AVAILABLE_ANTIBANDING_MODES 861 * @see CaptureRequest#CONTROL_AE_MODE 862 * @see CaptureRequest#CONTROL_MODE 863 * @see CaptureResult#STATISTICS_SCENE_FLICKER 864 * @see #CONTROL_AE_ANTIBANDING_MODE_OFF 865 * @see #CONTROL_AE_ANTIBANDING_MODE_50HZ 866 * @see #CONTROL_AE_ANTIBANDING_MODE_60HZ 867 * @see #CONTROL_AE_ANTIBANDING_MODE_AUTO 868 */ 869 @PublicKey 870 public static final Key<Integer> CONTROL_AE_ANTIBANDING_MODE = 871 new Key<Integer>("android.control.aeAntibandingMode", int.class); 872 873 /** 874 * <p>Adjustment to auto-exposure (AE) target image 875 * brightness.</p> 876 * <p>The adjustment is measured as a count of steps, with the 877 * step size defined by {@link CameraCharacteristics#CONTROL_AE_COMPENSATION_STEP android.control.aeCompensationStep} and the 878 * allowed range by {@link CameraCharacteristics#CONTROL_AE_COMPENSATION_RANGE android.control.aeCompensationRange}.</p> 879 * <p>For example, if the exposure value (EV) step is 0.333, '6' 880 * will mean an exposure compensation of +2 EV; -3 will mean an 881 * exposure compensation of -1 EV. One EV represents a doubling 882 * of image brightness. Note that this control will only be 883 * effective if {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} <code>!=</code> OFF. This control 884 * will take effect even when {@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} <code>== true</code>.</p> 885 * <p>In the event of exposure compensation value being changed, camera device 886 * may take several frames to reach the newly requested exposure target. 887 * During that time, {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} field will be in the SEARCHING 888 * state. Once the new exposure target is reached, {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} will 889 * change from SEARCHING to either CONVERGED, LOCKED (if AE lock is enabled), or 890 * FLASH_REQUIRED (if the scene is too dark for still capture).</p> 891 * <p><b>Units</b>: Compensation steps</p> 892 * <p><b>Range of valid values:</b><br> 893 * {@link CameraCharacteristics#CONTROL_AE_COMPENSATION_RANGE android.control.aeCompensationRange}</p> 894 * <p>This key is available on all devices.</p> 895 * 896 * @see CameraCharacteristics#CONTROL_AE_COMPENSATION_RANGE 897 * @see CameraCharacteristics#CONTROL_AE_COMPENSATION_STEP 898 * @see CaptureRequest#CONTROL_AE_LOCK 899 * @see CaptureRequest#CONTROL_AE_MODE 900 * @see CaptureResult#CONTROL_AE_STATE 901 */ 902 @PublicKey 903 public static final Key<Integer> CONTROL_AE_EXPOSURE_COMPENSATION = 904 new Key<Integer>("android.control.aeExposureCompensation", int.class); 905 906 /** 907 * <p>Whether auto-exposure (AE) is currently locked to its latest 908 * calculated values.</p> 909 * <p>When set to <code>true</code> (ON), the AE algorithm is locked to its latest parameters, 910 * and will not change exposure settings until the lock is set to <code>false</code> (OFF).</p> 911 * <p>Note that even when AE is locked, the flash may be fired if 912 * the {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is ON_AUTO_FLASH / 913 * ON_ALWAYS_FLASH / ON_AUTO_FLASH_REDEYE.</p> 914 * <p>When {@link CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION android.control.aeExposureCompensation} is changed, even if the AE lock 915 * is ON, the camera device will still adjust its exposure value.</p> 916 * <p>If AE precapture is triggered (see {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}) 917 * when AE is already locked, the camera device will not change the exposure time 918 * ({@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}) and sensitivity ({@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}) 919 * parameters. The flash may be fired if the {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} 920 * is ON_AUTO_FLASH/ON_AUTO_FLASH_REDEYE and the scene is too dark. If the 921 * {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is ON_ALWAYS_FLASH, the scene may become overexposed. 922 * Similarly, AE precapture trigger CANCEL has no effect when AE is already locked.</p> 923 * <p>When an AE precapture sequence is triggered, AE unlock will not be able to unlock 924 * the AE if AE is locked by the camera device internally during precapture metering 925 * sequence In other words, submitting requests with AE unlock has no effect for an 926 * ongoing precapture metering sequence. Otherwise, the precapture metering sequence 927 * will never succeed in a sequence of preview requests where AE lock is always set 928 * to <code>false</code>.</p> 929 * <p>Since the camera device has a pipeline of in-flight requests, the settings that 930 * get locked do not necessarily correspond to the settings that were present in the 931 * latest capture result received from the camera device, since additional captures 932 * and AE updates may have occurred even before the result was sent out. If an 933 * application is switching between automatic and manual control and wishes to eliminate 934 * any flicker during the switch, the following procedure is recommended:</p> 935 * <ol> 936 * <li>Starting in auto-AE mode:</li> 937 * <li>Lock AE</li> 938 * <li>Wait for the first result to be output that has the AE locked</li> 939 * <li>Copy exposure settings from that result into a request, set the request to manual AE</li> 940 * <li>Submit the capture request, proceed to run manual AE as desired.</li> 941 * </ol> 942 * <p>See {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} for AE lock related state transition details.</p> 943 * <p>This key is available on all devices.</p> 944 * 945 * @see CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION 946 * @see CaptureRequest#CONTROL_AE_MODE 947 * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER 948 * @see CaptureResult#CONTROL_AE_STATE 949 * @see CaptureRequest#SENSOR_EXPOSURE_TIME 950 * @see CaptureRequest#SENSOR_SENSITIVITY 951 */ 952 @PublicKey 953 public static final Key<Boolean> CONTROL_AE_LOCK = 954 new Key<Boolean>("android.control.aeLock", boolean.class); 955 956 /** 957 * <p>The desired mode for the camera device's 958 * auto-exposure routine.</p> 959 * <p>This control is only effective if {@link CaptureRequest#CONTROL_MODE android.control.mode} is 960 * AUTO.</p> 961 * <p>When set to any of the ON modes, the camera device's 962 * auto-exposure routine is enabled, overriding the 963 * application's selected exposure time, sensor sensitivity, 964 * and frame duration ({@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}, 965 * {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}, and 966 * {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration}). If one of the FLASH modes 967 * is selected, the camera device's flash unit controls are 968 * also overridden.</p> 969 * <p>The FLASH modes are only available if the camera device 970 * has a flash unit ({@link CameraCharacteristics#FLASH_INFO_AVAILABLE android.flash.info.available} is <code>true</code>).</p> 971 * <p>If flash TORCH mode is desired, this field must be set to 972 * ON or OFF, and {@link CaptureRequest#FLASH_MODE android.flash.mode} set to TORCH.</p> 973 * <p>When set to any of the ON modes, the values chosen by the 974 * camera device auto-exposure routine for the overridden 975 * fields for a given capture will be available in its 976 * CaptureResult.</p> 977 * <p><b>Possible values:</b> 978 * <ul> 979 * <li>{@link #CONTROL_AE_MODE_OFF OFF}</li> 980 * <li>{@link #CONTROL_AE_MODE_ON ON}</li> 981 * <li>{@link #CONTROL_AE_MODE_ON_AUTO_FLASH ON_AUTO_FLASH}</li> 982 * <li>{@link #CONTROL_AE_MODE_ON_ALWAYS_FLASH ON_ALWAYS_FLASH}</li> 983 * <li>{@link #CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE ON_AUTO_FLASH_REDEYE}</li> 984 * </ul></p> 985 * <p><b>Available values for this device:</b><br> 986 * {@link CameraCharacteristics#CONTROL_AE_AVAILABLE_MODES android.control.aeAvailableModes}</p> 987 * <p>This key is available on all devices.</p> 988 * 989 * @see CameraCharacteristics#CONTROL_AE_AVAILABLE_MODES 990 * @see CaptureRequest#CONTROL_MODE 991 * @see CameraCharacteristics#FLASH_INFO_AVAILABLE 992 * @see CaptureRequest#FLASH_MODE 993 * @see CaptureRequest#SENSOR_EXPOSURE_TIME 994 * @see CaptureRequest#SENSOR_FRAME_DURATION 995 * @see CaptureRequest#SENSOR_SENSITIVITY 996 * @see #CONTROL_AE_MODE_OFF 997 * @see #CONTROL_AE_MODE_ON 998 * @see #CONTROL_AE_MODE_ON_AUTO_FLASH 999 * @see #CONTROL_AE_MODE_ON_ALWAYS_FLASH 1000 * @see #CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE 1001 */ 1002 @PublicKey 1003 public static final Key<Integer> CONTROL_AE_MODE = 1004 new Key<Integer>("android.control.aeMode", int.class); 1005 1006 /** 1007 * <p>List of metering areas to use for auto-exposure adjustment.</p> 1008 * <p>Not available if {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AE android.control.maxRegionsAe} is 0. 1009 * Otherwise will always be present.</p> 1010 * <p>The maximum number of regions supported by the device is determined by the value 1011 * of {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AE android.control.maxRegionsAe}.</p> 1012 * <p>The coordinate system is based on the active pixel array, 1013 * with (0,0) being the top-left pixel in the active pixel array, and 1014 * ({@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.width - 1, 1015 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.height - 1) being the 1016 * bottom-right pixel in the active pixel array.</p> 1017 * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight 1018 * for every pixel in the area. This means that a large metering area 1019 * with the same weight as a smaller area will have more effect in 1020 * the metering result. Metering areas can partially overlap and the 1021 * camera device will add the weights in the overlap region.</p> 1022 * <p>The weights are relative to weights of other exposure metering regions, so if only one 1023 * region is used, all non-zero weights will have the same effect. A region with 0 1024 * weight is ignored.</p> 1025 * <p>If all regions have 0 weight, then no specific metering area needs to be used by the 1026 * camera device.</p> 1027 * <p>If the metering region is outside the used {@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion} returned in 1028 * capture result metadata, the camera device will ignore the sections outside the crop 1029 * region and output only the intersection rectangle as the metering region in the result 1030 * metadata. If the region is entirely outside the crop region, it will be ignored and 1031 * not reported in the result metadata.</p> 1032 * <p><b>Units</b>: Pixel coordinates within {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 1033 * <p><b>Range of valid values:</b><br> 1034 * Coordinates must be between <code>[(0,0), (width, height))</code> of 1035 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 1036 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1037 * 1038 * @see CameraCharacteristics#CONTROL_MAX_REGIONS_AE 1039 * @see CaptureRequest#SCALER_CROP_REGION 1040 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 1041 */ 1042 @PublicKey 1043 public static final Key<android.hardware.camera2.params.MeteringRectangle[]> CONTROL_AE_REGIONS = 1044 new Key<android.hardware.camera2.params.MeteringRectangle[]>("android.control.aeRegions", android.hardware.camera2.params.MeteringRectangle[].class); 1045 1046 /** 1047 * <p>Range over which the auto-exposure routine can 1048 * adjust the capture frame rate to maintain good 1049 * exposure.</p> 1050 * <p>Only constrains auto-exposure (AE) algorithm, not 1051 * manual control of {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime} and 1052 * {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration}.</p> 1053 * <p><b>Units</b>: Frames per second (FPS)</p> 1054 * <p><b>Range of valid values:</b><br> 1055 * Any of the entries in {@link CameraCharacteristics#CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES android.control.aeAvailableTargetFpsRanges}</p> 1056 * <p>This key is available on all devices.</p> 1057 * 1058 * @see CameraCharacteristics#CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES 1059 * @see CaptureRequest#SENSOR_EXPOSURE_TIME 1060 * @see CaptureRequest#SENSOR_FRAME_DURATION 1061 */ 1062 @PublicKey 1063 public static final Key<android.util.Range<Integer>> CONTROL_AE_TARGET_FPS_RANGE = 1064 new Key<android.util.Range<Integer>>("android.control.aeTargetFpsRange", new TypeReference<android.util.Range<Integer>>() {{ }}); 1065 1066 /** 1067 * <p>Whether the camera device will trigger a precapture 1068 * metering sequence when it processes this request.</p> 1069 * <p>This entry is normally set to IDLE, or is not 1070 * included at all in the request settings. When included and 1071 * set to START, the camera device will trigger the auto-exposure (AE) 1072 * precapture metering sequence.</p> 1073 * <p>When set to CANCEL, the camera device will cancel any active 1074 * precapture metering trigger, and return to its initial AE state. 1075 * If a precapture metering sequence is already completed, and the camera 1076 * device has implicitly locked the AE for subsequent still capture, the 1077 * CANCEL trigger will unlock the AE and return to its initial AE state.</p> 1078 * <p>The precapture sequence should be triggered before starting a 1079 * high-quality still capture for final metering decisions to 1080 * be made, and for firing pre-capture flash pulses to estimate 1081 * scene brightness and required final capture flash power, when 1082 * the flash is enabled.</p> 1083 * <p>Normally, this entry should be set to START for only a 1084 * single request, and the application should wait until the 1085 * sequence completes before starting a new one.</p> 1086 * <p>When a precapture metering sequence is finished, the camera device 1087 * may lock the auto-exposure routine internally to be able to accurately expose the 1088 * subsequent still capture image (<code>{@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} == STILL_CAPTURE</code>). 1089 * For this case, the AE may not resume normal scan if no subsequent still capture is 1090 * submitted. To ensure that the AE routine restarts normal scan, the application should 1091 * submit a request with <code>{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} == true</code>, followed by a request 1092 * with <code>{@link CaptureRequest#CONTROL_AE_LOCK android.control.aeLock} == false</code>, if the application decides not to submit a 1093 * still capture request after the precapture sequence completes. Alternatively, for 1094 * API level 23 or newer devices, the CANCEL can be used to unlock the camera device 1095 * internally locked AE if the application doesn't submit a still capture request after 1096 * the AE precapture trigger. Note that, the CANCEL was added in API level 23, and must not 1097 * be used in devices that have earlier API levels.</p> 1098 * <p>The exact effect of auto-exposure (AE) precapture trigger 1099 * depends on the current AE mode and state; see 1100 * {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} for AE precapture state transition 1101 * details.</p> 1102 * <p>On LEGACY-level devices, the precapture trigger is not supported; 1103 * capturing a high-resolution JPEG image will automatically trigger a 1104 * precapture sequence before the high-resolution capture, including 1105 * potentially firing a pre-capture flash.</p> 1106 * <p>Using the precapture trigger and the auto-focus trigger {@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger} 1107 * simultaneously is allowed. However, since these triggers often require cooperation between 1108 * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a 1109 * focus sweep), the camera device may delay acting on a later trigger until the previous 1110 * trigger has been fully handled. This may lead to longer intervals between the trigger and 1111 * changes to {@link CaptureResult#CONTROL_AE_STATE android.control.aeState} indicating the start of the precapture sequence, for 1112 * example.</p> 1113 * <p>If both the precapture and the auto-focus trigger are activated on the same request, then 1114 * the camera device will complete them in the optimal order for that device.</p> 1115 * <p><b>Possible values:</b> 1116 * <ul> 1117 * <li>{@link #CONTROL_AE_PRECAPTURE_TRIGGER_IDLE IDLE}</li> 1118 * <li>{@link #CONTROL_AE_PRECAPTURE_TRIGGER_START START}</li> 1119 * <li>{@link #CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL CANCEL}</li> 1120 * </ul></p> 1121 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1122 * <p><b>Limited capability</b> - 1123 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 1124 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 1125 * 1126 * @see CaptureRequest#CONTROL_AE_LOCK 1127 * @see CaptureResult#CONTROL_AE_STATE 1128 * @see CaptureRequest#CONTROL_AF_TRIGGER 1129 * @see CaptureRequest#CONTROL_CAPTURE_INTENT 1130 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 1131 * @see #CONTROL_AE_PRECAPTURE_TRIGGER_IDLE 1132 * @see #CONTROL_AE_PRECAPTURE_TRIGGER_START 1133 * @see #CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL 1134 */ 1135 @PublicKey 1136 public static final Key<Integer> CONTROL_AE_PRECAPTURE_TRIGGER = 1137 new Key<Integer>("android.control.aePrecaptureTrigger", int.class); 1138 1139 /** 1140 * <p>Whether auto-focus (AF) is currently enabled, and what 1141 * mode it is set to.</p> 1142 * <p>Only effective if {@link CaptureRequest#CONTROL_MODE android.control.mode} = AUTO and the lens is not fixed focus 1143 * (i.e. <code>{@link CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance} > 0</code>). Also note that 1144 * when {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is OFF, the behavior of AF is device 1145 * dependent. It is recommended to lock AF by using {@link CaptureRequest#CONTROL_AF_TRIGGER android.control.afTrigger} before 1146 * setting {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} to OFF, or set AF mode to OFF when AE is OFF.</p> 1147 * <p>If the lens is controlled by the camera device auto-focus algorithm, 1148 * the camera device will report the current AF status in {@link CaptureResult#CONTROL_AF_STATE android.control.afState} 1149 * in result metadata.</p> 1150 * <p><b>Possible values:</b> 1151 * <ul> 1152 * <li>{@link #CONTROL_AF_MODE_OFF OFF}</li> 1153 * <li>{@link #CONTROL_AF_MODE_AUTO AUTO}</li> 1154 * <li>{@link #CONTROL_AF_MODE_MACRO MACRO}</li> 1155 * <li>{@link #CONTROL_AF_MODE_CONTINUOUS_VIDEO CONTINUOUS_VIDEO}</li> 1156 * <li>{@link #CONTROL_AF_MODE_CONTINUOUS_PICTURE CONTINUOUS_PICTURE}</li> 1157 * <li>{@link #CONTROL_AF_MODE_EDOF EDOF}</li> 1158 * </ul></p> 1159 * <p><b>Available values for this device:</b><br> 1160 * {@link CameraCharacteristics#CONTROL_AF_AVAILABLE_MODES android.control.afAvailableModes}</p> 1161 * <p>This key is available on all devices.</p> 1162 * 1163 * @see CaptureRequest#CONTROL_AE_MODE 1164 * @see CameraCharacteristics#CONTROL_AF_AVAILABLE_MODES 1165 * @see CaptureResult#CONTROL_AF_STATE 1166 * @see CaptureRequest#CONTROL_AF_TRIGGER 1167 * @see CaptureRequest#CONTROL_MODE 1168 * @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE 1169 * @see #CONTROL_AF_MODE_OFF 1170 * @see #CONTROL_AF_MODE_AUTO 1171 * @see #CONTROL_AF_MODE_MACRO 1172 * @see #CONTROL_AF_MODE_CONTINUOUS_VIDEO 1173 * @see #CONTROL_AF_MODE_CONTINUOUS_PICTURE 1174 * @see #CONTROL_AF_MODE_EDOF 1175 */ 1176 @PublicKey 1177 public static final Key<Integer> CONTROL_AF_MODE = 1178 new Key<Integer>("android.control.afMode", int.class); 1179 1180 /** 1181 * <p>List of metering areas to use for auto-focus.</p> 1182 * <p>Not available if {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AF android.control.maxRegionsAf} is 0. 1183 * Otherwise will always be present.</p> 1184 * <p>The maximum number of focus areas supported by the device is determined by the value 1185 * of {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AF android.control.maxRegionsAf}.</p> 1186 * <p>The coordinate system is based on the active pixel array, 1187 * with (0,0) being the top-left pixel in the active pixel array, and 1188 * ({@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.width - 1, 1189 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.height - 1) being the 1190 * bottom-right pixel in the active pixel array.</p> 1191 * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight 1192 * for every pixel in the area. This means that a large metering area 1193 * with the same weight as a smaller area will have more effect in 1194 * the metering result. Metering areas can partially overlap and the 1195 * camera device will add the weights in the overlap region.</p> 1196 * <p>The weights are relative to weights of other metering regions, so if only one region 1197 * is used, all non-zero weights will have the same effect. A region with 0 weight is 1198 * ignored.</p> 1199 * <p>If all regions have 0 weight, then no specific metering area needs to be used by the 1200 * camera device.</p> 1201 * <p>If the metering region is outside the used {@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion} returned in 1202 * capture result metadata, the camera device will ignore the sections outside the crop 1203 * region and output only the intersection rectangle as the metering region in the result 1204 * metadata. If the region is entirely outside the crop region, it will be ignored and 1205 * not reported in the result metadata.</p> 1206 * <p><b>Units</b>: Pixel coordinates within {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 1207 * <p><b>Range of valid values:</b><br> 1208 * Coordinates must be between <code>[(0,0), (width, height))</code> of 1209 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 1210 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1211 * 1212 * @see CameraCharacteristics#CONTROL_MAX_REGIONS_AF 1213 * @see CaptureRequest#SCALER_CROP_REGION 1214 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 1215 */ 1216 @PublicKey 1217 public static final Key<android.hardware.camera2.params.MeteringRectangle[]> CONTROL_AF_REGIONS = 1218 new Key<android.hardware.camera2.params.MeteringRectangle[]>("android.control.afRegions", android.hardware.camera2.params.MeteringRectangle[].class); 1219 1220 /** 1221 * <p>Whether the camera device will trigger autofocus for this request.</p> 1222 * <p>This entry is normally set to IDLE, or is not 1223 * included at all in the request settings.</p> 1224 * <p>When included and set to START, the camera device will trigger the 1225 * autofocus algorithm. If autofocus is disabled, this trigger has no effect.</p> 1226 * <p>When set to CANCEL, the camera device will cancel any active trigger, 1227 * and return to its initial AF state.</p> 1228 * <p>Generally, applications should set this entry to START or CANCEL for only a 1229 * single capture, and then return it to IDLE (or not set at all). Specifying 1230 * START for multiple captures in a row means restarting the AF operation over 1231 * and over again.</p> 1232 * <p>See {@link CaptureResult#CONTROL_AF_STATE android.control.afState} for what the trigger means for each AF mode.</p> 1233 * <p>Using the autofocus trigger and the precapture trigger {@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger} 1234 * simultaneously is allowed. However, since these triggers often require cooperation between 1235 * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a 1236 * focus sweep), the camera device may delay acting on a later trigger until the previous 1237 * trigger has been fully handled. This may lead to longer intervals between the trigger and 1238 * changes to {@link CaptureResult#CONTROL_AF_STATE android.control.afState}, for example.</p> 1239 * <p><b>Possible values:</b> 1240 * <ul> 1241 * <li>{@link #CONTROL_AF_TRIGGER_IDLE IDLE}</li> 1242 * <li>{@link #CONTROL_AF_TRIGGER_START START}</li> 1243 * <li>{@link #CONTROL_AF_TRIGGER_CANCEL CANCEL}</li> 1244 * </ul></p> 1245 * <p>This key is available on all devices.</p> 1246 * 1247 * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER 1248 * @see CaptureResult#CONTROL_AF_STATE 1249 * @see #CONTROL_AF_TRIGGER_IDLE 1250 * @see #CONTROL_AF_TRIGGER_START 1251 * @see #CONTROL_AF_TRIGGER_CANCEL 1252 */ 1253 @PublicKey 1254 public static final Key<Integer> CONTROL_AF_TRIGGER = 1255 new Key<Integer>("android.control.afTrigger", int.class); 1256 1257 /** 1258 * <p>Whether auto-white balance (AWB) is currently locked to its 1259 * latest calculated values.</p> 1260 * <p>When set to <code>true</code> (ON), the AWB algorithm is locked to its latest parameters, 1261 * and will not change color balance settings until the lock is set to <code>false</code> (OFF).</p> 1262 * <p>Since the camera device has a pipeline of in-flight requests, the settings that 1263 * get locked do not necessarily correspond to the settings that were present in the 1264 * latest capture result received from the camera device, since additional captures 1265 * and AWB updates may have occurred even before the result was sent out. If an 1266 * application is switching between automatic and manual control and wishes to eliminate 1267 * any flicker during the switch, the following procedure is recommended:</p> 1268 * <ol> 1269 * <li>Starting in auto-AWB mode:</li> 1270 * <li>Lock AWB</li> 1271 * <li>Wait for the first result to be output that has the AWB locked</li> 1272 * <li>Copy AWB settings from that result into a request, set the request to manual AWB</li> 1273 * <li>Submit the capture request, proceed to run manual AWB as desired.</li> 1274 * </ol> 1275 * <p>Note that AWB lock is only meaningful when 1276 * {@link CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} is in the AUTO mode; in other modes, 1277 * AWB is already fixed to a specific setting.</p> 1278 * <p>Some LEGACY devices may not support ON; the value is then overridden to OFF.</p> 1279 * <p>This key is available on all devices.</p> 1280 * 1281 * @see CaptureRequest#CONTROL_AWB_MODE 1282 */ 1283 @PublicKey 1284 public static final Key<Boolean> CONTROL_AWB_LOCK = 1285 new Key<Boolean>("android.control.awbLock", boolean.class); 1286 1287 /** 1288 * <p>Whether auto-white balance (AWB) is currently setting the color 1289 * transform fields, and what its illumination target 1290 * is.</p> 1291 * <p>This control is only effective if {@link CaptureRequest#CONTROL_MODE android.control.mode} is AUTO.</p> 1292 * <p>When set to the ON mode, the camera device's auto-white balance 1293 * routine is enabled, overriding the application's selected 1294 * {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}, {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} and 1295 * {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode}. Note that when {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} 1296 * is OFF, the behavior of AWB is device dependent. It is recommened to 1297 * also set AWB mode to OFF or lock AWB by using {@link CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock} before 1298 * setting AE mode to OFF.</p> 1299 * <p>When set to the OFF mode, the camera device's auto-white balance 1300 * routine is disabled. The application manually controls the white 1301 * balance by {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}, {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} 1302 * and {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode}.</p> 1303 * <p>When set to any other modes, the camera device's auto-white 1304 * balance routine is disabled. The camera device uses each 1305 * particular illumination target for white balance 1306 * adjustment. The application's values for 1307 * {@link CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform}, 1308 * {@link CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains} and 1309 * {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} are ignored.</p> 1310 * <p><b>Possible values:</b> 1311 * <ul> 1312 * <li>{@link #CONTROL_AWB_MODE_OFF OFF}</li> 1313 * <li>{@link #CONTROL_AWB_MODE_AUTO AUTO}</li> 1314 * <li>{@link #CONTROL_AWB_MODE_INCANDESCENT INCANDESCENT}</li> 1315 * <li>{@link #CONTROL_AWB_MODE_FLUORESCENT FLUORESCENT}</li> 1316 * <li>{@link #CONTROL_AWB_MODE_WARM_FLUORESCENT WARM_FLUORESCENT}</li> 1317 * <li>{@link #CONTROL_AWB_MODE_DAYLIGHT DAYLIGHT}</li> 1318 * <li>{@link #CONTROL_AWB_MODE_CLOUDY_DAYLIGHT CLOUDY_DAYLIGHT}</li> 1319 * <li>{@link #CONTROL_AWB_MODE_TWILIGHT TWILIGHT}</li> 1320 * <li>{@link #CONTROL_AWB_MODE_SHADE SHADE}</li> 1321 * </ul></p> 1322 * <p><b>Available values for this device:</b><br> 1323 * {@link CameraCharacteristics#CONTROL_AWB_AVAILABLE_MODES android.control.awbAvailableModes}</p> 1324 * <p>This key is available on all devices.</p> 1325 * 1326 * @see CaptureRequest#COLOR_CORRECTION_GAINS 1327 * @see CaptureRequest#COLOR_CORRECTION_MODE 1328 * @see CaptureRequest#COLOR_CORRECTION_TRANSFORM 1329 * @see CaptureRequest#CONTROL_AE_MODE 1330 * @see CameraCharacteristics#CONTROL_AWB_AVAILABLE_MODES 1331 * @see CaptureRequest#CONTROL_AWB_LOCK 1332 * @see CaptureRequest#CONTROL_MODE 1333 * @see #CONTROL_AWB_MODE_OFF 1334 * @see #CONTROL_AWB_MODE_AUTO 1335 * @see #CONTROL_AWB_MODE_INCANDESCENT 1336 * @see #CONTROL_AWB_MODE_FLUORESCENT 1337 * @see #CONTROL_AWB_MODE_WARM_FLUORESCENT 1338 * @see #CONTROL_AWB_MODE_DAYLIGHT 1339 * @see #CONTROL_AWB_MODE_CLOUDY_DAYLIGHT 1340 * @see #CONTROL_AWB_MODE_TWILIGHT 1341 * @see #CONTROL_AWB_MODE_SHADE 1342 */ 1343 @PublicKey 1344 public static final Key<Integer> CONTROL_AWB_MODE = 1345 new Key<Integer>("android.control.awbMode", int.class); 1346 1347 /** 1348 * <p>List of metering areas to use for auto-white-balance illuminant 1349 * estimation.</p> 1350 * <p>Not available if {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AWB android.control.maxRegionsAwb} is 0. 1351 * Otherwise will always be present.</p> 1352 * <p>The maximum number of regions supported by the device is determined by the value 1353 * of {@link CameraCharacteristics#CONTROL_MAX_REGIONS_AWB android.control.maxRegionsAwb}.</p> 1354 * <p>The coordinate system is based on the active pixel array, 1355 * with (0,0) being the top-left pixel in the active pixel array, and 1356 * ({@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.width - 1, 1357 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.height - 1) being the 1358 * bottom-right pixel in the active pixel array.</p> 1359 * <p>The weight must range from 0 to 1000, and represents a weight 1360 * for every pixel in the area. This means that a large metering area 1361 * with the same weight as a smaller area will have more effect in 1362 * the metering result. Metering areas can partially overlap and the 1363 * camera device will add the weights in the overlap region.</p> 1364 * <p>The weights are relative to weights of other white balance metering regions, so if 1365 * only one region is used, all non-zero weights will have the same effect. A region with 1366 * 0 weight is ignored.</p> 1367 * <p>If all regions have 0 weight, then no specific metering area needs to be used by the 1368 * camera device.</p> 1369 * <p>If the metering region is outside the used {@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion} returned in 1370 * capture result metadata, the camera device will ignore the sections outside the crop 1371 * region and output only the intersection rectangle as the metering region in the result 1372 * metadata. If the region is entirely outside the crop region, it will be ignored and 1373 * not reported in the result metadata.</p> 1374 * <p><b>Units</b>: Pixel coordinates within {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 1375 * <p><b>Range of valid values:</b><br> 1376 * Coordinates must be between <code>[(0,0), (width, height))</code> of 1377 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 1378 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1379 * 1380 * @see CameraCharacteristics#CONTROL_MAX_REGIONS_AWB 1381 * @see CaptureRequest#SCALER_CROP_REGION 1382 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 1383 */ 1384 @PublicKey 1385 public static final Key<android.hardware.camera2.params.MeteringRectangle[]> CONTROL_AWB_REGIONS = 1386 new Key<android.hardware.camera2.params.MeteringRectangle[]>("android.control.awbRegions", android.hardware.camera2.params.MeteringRectangle[].class); 1387 1388 /** 1389 * <p>Information to the camera device 3A (auto-exposure, 1390 * auto-focus, auto-white balance) routines about the purpose 1391 * of this capture, to help the camera device to decide optimal 3A 1392 * strategy.</p> 1393 * <p>This control (except for MANUAL) is only effective if 1394 * <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} != OFF</code> and any 3A routine is active.</p> 1395 * <p>ZERO_SHUTTER_LAG will be supported if {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} 1396 * contains PRIVATE_REPROCESSING or YUV_REPROCESSING. MANUAL will be supported if 1397 * {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} contains MANUAL_SENSOR. Other intent values are 1398 * always supported.</p> 1399 * <p><b>Possible values:</b> 1400 * <ul> 1401 * <li>{@link #CONTROL_CAPTURE_INTENT_CUSTOM CUSTOM}</li> 1402 * <li>{@link #CONTROL_CAPTURE_INTENT_PREVIEW PREVIEW}</li> 1403 * <li>{@link #CONTROL_CAPTURE_INTENT_STILL_CAPTURE STILL_CAPTURE}</li> 1404 * <li>{@link #CONTROL_CAPTURE_INTENT_VIDEO_RECORD VIDEO_RECORD}</li> 1405 * <li>{@link #CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT VIDEO_SNAPSHOT}</li> 1406 * <li>{@link #CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG ZERO_SHUTTER_LAG}</li> 1407 * <li>{@link #CONTROL_CAPTURE_INTENT_MANUAL MANUAL}</li> 1408 * </ul></p> 1409 * <p>This key is available on all devices.</p> 1410 * 1411 * @see CaptureRequest#CONTROL_MODE 1412 * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES 1413 * @see #CONTROL_CAPTURE_INTENT_CUSTOM 1414 * @see #CONTROL_CAPTURE_INTENT_PREVIEW 1415 * @see #CONTROL_CAPTURE_INTENT_STILL_CAPTURE 1416 * @see #CONTROL_CAPTURE_INTENT_VIDEO_RECORD 1417 * @see #CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT 1418 * @see #CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG 1419 * @see #CONTROL_CAPTURE_INTENT_MANUAL 1420 */ 1421 @PublicKey 1422 public static final Key<Integer> CONTROL_CAPTURE_INTENT = 1423 new Key<Integer>("android.control.captureIntent", int.class); 1424 1425 /** 1426 * <p>A special color effect to apply.</p> 1427 * <p>When this mode is set, a color effect will be applied 1428 * to images produced by the camera device. The interpretation 1429 * and implementation of these color effects is left to the 1430 * implementor of the camera device, and should not be 1431 * depended on to be consistent (or present) across all 1432 * devices.</p> 1433 * <p><b>Possible values:</b> 1434 * <ul> 1435 * <li>{@link #CONTROL_EFFECT_MODE_OFF OFF}</li> 1436 * <li>{@link #CONTROL_EFFECT_MODE_MONO MONO}</li> 1437 * <li>{@link #CONTROL_EFFECT_MODE_NEGATIVE NEGATIVE}</li> 1438 * <li>{@link #CONTROL_EFFECT_MODE_SOLARIZE SOLARIZE}</li> 1439 * <li>{@link #CONTROL_EFFECT_MODE_SEPIA SEPIA}</li> 1440 * <li>{@link #CONTROL_EFFECT_MODE_POSTERIZE POSTERIZE}</li> 1441 * <li>{@link #CONTROL_EFFECT_MODE_WHITEBOARD WHITEBOARD}</li> 1442 * <li>{@link #CONTROL_EFFECT_MODE_BLACKBOARD BLACKBOARD}</li> 1443 * <li>{@link #CONTROL_EFFECT_MODE_AQUA AQUA}</li> 1444 * </ul></p> 1445 * <p><b>Available values for this device:</b><br> 1446 * {@link CameraCharacteristics#CONTROL_AVAILABLE_EFFECTS android.control.availableEffects}</p> 1447 * <p>This key is available on all devices.</p> 1448 * 1449 * @see CameraCharacteristics#CONTROL_AVAILABLE_EFFECTS 1450 * @see #CONTROL_EFFECT_MODE_OFF 1451 * @see #CONTROL_EFFECT_MODE_MONO 1452 * @see #CONTROL_EFFECT_MODE_NEGATIVE 1453 * @see #CONTROL_EFFECT_MODE_SOLARIZE 1454 * @see #CONTROL_EFFECT_MODE_SEPIA 1455 * @see #CONTROL_EFFECT_MODE_POSTERIZE 1456 * @see #CONTROL_EFFECT_MODE_WHITEBOARD 1457 * @see #CONTROL_EFFECT_MODE_BLACKBOARD 1458 * @see #CONTROL_EFFECT_MODE_AQUA 1459 */ 1460 @PublicKey 1461 public static final Key<Integer> CONTROL_EFFECT_MODE = 1462 new Key<Integer>("android.control.effectMode", int.class); 1463 1464 /** 1465 * <p>Overall mode of 3A (auto-exposure, auto-white-balance, auto-focus) control 1466 * routines.</p> 1467 * <p>This is a top-level 3A control switch. When set to OFF, all 3A control 1468 * by the camera device is disabled. The application must set the fields for 1469 * capture parameters itself.</p> 1470 * <p>When set to AUTO, the individual algorithm controls in 1471 * android.control.* are in effect, such as {@link CaptureRequest#CONTROL_AF_MODE android.control.afMode}.</p> 1472 * <p>When set to USE_SCENE_MODE, the individual controls in 1473 * android.control.* are mostly disabled, and the camera device implements 1474 * one of the scene mode settings (such as ACTION, SUNSET, or PARTY) 1475 * as it wishes. The camera device scene mode 3A settings are provided by 1476 * {@link android.hardware.camera2.CaptureResult capture results}.</p> 1477 * <p>When set to OFF_KEEP_STATE, it is similar to OFF mode, the only difference 1478 * is that this frame will not be used by camera device background 3A statistics 1479 * update, as if this frame is never captured. This mode can be used in the scenario 1480 * where the application doesn't want a 3A manual control capture to affect 1481 * the subsequent auto 3A capture results.</p> 1482 * <p><b>Possible values:</b> 1483 * <ul> 1484 * <li>{@link #CONTROL_MODE_OFF OFF}</li> 1485 * <li>{@link #CONTROL_MODE_AUTO AUTO}</li> 1486 * <li>{@link #CONTROL_MODE_USE_SCENE_MODE USE_SCENE_MODE}</li> 1487 * <li>{@link #CONTROL_MODE_OFF_KEEP_STATE OFF_KEEP_STATE}</li> 1488 * </ul></p> 1489 * <p><b>Available values for this device:</b><br> 1490 * {@link CameraCharacteristics#CONTROL_AVAILABLE_MODES android.control.availableModes}</p> 1491 * <p>This key is available on all devices.</p> 1492 * 1493 * @see CaptureRequest#CONTROL_AF_MODE 1494 * @see CameraCharacteristics#CONTROL_AVAILABLE_MODES 1495 * @see #CONTROL_MODE_OFF 1496 * @see #CONTROL_MODE_AUTO 1497 * @see #CONTROL_MODE_USE_SCENE_MODE 1498 * @see #CONTROL_MODE_OFF_KEEP_STATE 1499 */ 1500 @PublicKey 1501 public static final Key<Integer> CONTROL_MODE = 1502 new Key<Integer>("android.control.mode", int.class); 1503 1504 /** 1505 * <p>Control for which scene mode is currently active.</p> 1506 * <p>Scene modes are custom camera modes optimized for a certain set of conditions and 1507 * capture settings.</p> 1508 * <p>This is the mode that that is active when 1509 * <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} == USE_SCENE_MODE</code>. Aside from FACE_PRIORITY, these modes will 1510 * 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} 1511 * while in use.</p> 1512 * <p>The interpretation and implementation of these scene modes is left 1513 * to the implementor of the camera device. Their behavior will not be 1514 * consistent across all devices, and any given device may only implement 1515 * a subset of these modes.</p> 1516 * <p><b>Possible values:</b> 1517 * <ul> 1518 * <li>{@link #CONTROL_SCENE_MODE_DISABLED DISABLED}</li> 1519 * <li>{@link #CONTROL_SCENE_MODE_FACE_PRIORITY FACE_PRIORITY}</li> 1520 * <li>{@link #CONTROL_SCENE_MODE_ACTION ACTION}</li> 1521 * <li>{@link #CONTROL_SCENE_MODE_PORTRAIT PORTRAIT}</li> 1522 * <li>{@link #CONTROL_SCENE_MODE_LANDSCAPE LANDSCAPE}</li> 1523 * <li>{@link #CONTROL_SCENE_MODE_NIGHT NIGHT}</li> 1524 * <li>{@link #CONTROL_SCENE_MODE_NIGHT_PORTRAIT NIGHT_PORTRAIT}</li> 1525 * <li>{@link #CONTROL_SCENE_MODE_THEATRE THEATRE}</li> 1526 * <li>{@link #CONTROL_SCENE_MODE_BEACH BEACH}</li> 1527 * <li>{@link #CONTROL_SCENE_MODE_SNOW SNOW}</li> 1528 * <li>{@link #CONTROL_SCENE_MODE_SUNSET SUNSET}</li> 1529 * <li>{@link #CONTROL_SCENE_MODE_STEADYPHOTO STEADYPHOTO}</li> 1530 * <li>{@link #CONTROL_SCENE_MODE_FIREWORKS FIREWORKS}</li> 1531 * <li>{@link #CONTROL_SCENE_MODE_SPORTS SPORTS}</li> 1532 * <li>{@link #CONTROL_SCENE_MODE_PARTY PARTY}</li> 1533 * <li>{@link #CONTROL_SCENE_MODE_CANDLELIGHT CANDLELIGHT}</li> 1534 * <li>{@link #CONTROL_SCENE_MODE_BARCODE BARCODE}</li> 1535 * <li>{@link #CONTROL_SCENE_MODE_HIGH_SPEED_VIDEO HIGH_SPEED_VIDEO}</li> 1536 * <li>{@link #CONTROL_SCENE_MODE_HDR HDR}</li> 1537 * </ul></p> 1538 * <p><b>Available values for this device:</b><br> 1539 * {@link CameraCharacteristics#CONTROL_AVAILABLE_SCENE_MODES android.control.availableSceneModes}</p> 1540 * <p>This key is available on all devices.</p> 1541 * 1542 * @see CaptureRequest#CONTROL_AE_MODE 1543 * @see CaptureRequest#CONTROL_AF_MODE 1544 * @see CameraCharacteristics#CONTROL_AVAILABLE_SCENE_MODES 1545 * @see CaptureRequest#CONTROL_AWB_MODE 1546 * @see CaptureRequest#CONTROL_MODE 1547 * @see #CONTROL_SCENE_MODE_DISABLED 1548 * @see #CONTROL_SCENE_MODE_FACE_PRIORITY 1549 * @see #CONTROL_SCENE_MODE_ACTION 1550 * @see #CONTROL_SCENE_MODE_PORTRAIT 1551 * @see #CONTROL_SCENE_MODE_LANDSCAPE 1552 * @see #CONTROL_SCENE_MODE_NIGHT 1553 * @see #CONTROL_SCENE_MODE_NIGHT_PORTRAIT 1554 * @see #CONTROL_SCENE_MODE_THEATRE 1555 * @see #CONTROL_SCENE_MODE_BEACH 1556 * @see #CONTROL_SCENE_MODE_SNOW 1557 * @see #CONTROL_SCENE_MODE_SUNSET 1558 * @see #CONTROL_SCENE_MODE_STEADYPHOTO 1559 * @see #CONTROL_SCENE_MODE_FIREWORKS 1560 * @see #CONTROL_SCENE_MODE_SPORTS 1561 * @see #CONTROL_SCENE_MODE_PARTY 1562 * @see #CONTROL_SCENE_MODE_CANDLELIGHT 1563 * @see #CONTROL_SCENE_MODE_BARCODE 1564 * @see #CONTROL_SCENE_MODE_HIGH_SPEED_VIDEO 1565 * @see #CONTROL_SCENE_MODE_HDR 1566 */ 1567 @PublicKey 1568 public static final Key<Integer> CONTROL_SCENE_MODE = 1569 new Key<Integer>("android.control.sceneMode", int.class); 1570 1571 /** 1572 * <p>Whether video stabilization is 1573 * active.</p> 1574 * <p>Video stabilization automatically warps images from 1575 * the camera in order to stabilize motion between consecutive frames.</p> 1576 * <p>If enabled, video stabilization can modify the 1577 * {@link CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion} to keep the video stream stabilized.</p> 1578 * <p>Switching between different video stabilization modes may take several 1579 * frames to initialize, the camera device will report the current mode 1580 * in capture result metadata. For example, When "ON" mode is requested, 1581 * the video stabilization modes in the first several capture results may 1582 * still be "OFF", and it will become "ON" when the initialization is 1583 * done.</p> 1584 * <p>In addition, not all recording sizes or frame rates may be supported for 1585 * stabilization by a device that reports stabilization support. It is guaranteed 1586 * that an output targeting a MediaRecorder or MediaCodec will be stabilized if 1587 * the recording resolution is less than or equal to 1920 x 1080 (width less than 1588 * or equal to 1920, height less than or equal to 1080), and the recording 1589 * frame rate is less than or equal to 30fps. At other sizes, the CaptureResult 1590 * {@link CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE android.control.videoStabilizationMode} field will return 1591 * OFF if the recording output is not stabilized, or if there are no output 1592 * Surface types that can be stabilized.</p> 1593 * <p>If a camera device supports both this mode and OIS 1594 * ({@link CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE android.lens.opticalStabilizationMode}), turning both modes on may 1595 * produce undesirable interaction, so it is recommended not to enable 1596 * both at the same time.</p> 1597 * <p><b>Possible values:</b> 1598 * <ul> 1599 * <li>{@link #CONTROL_VIDEO_STABILIZATION_MODE_OFF OFF}</li> 1600 * <li>{@link #CONTROL_VIDEO_STABILIZATION_MODE_ON ON}</li> 1601 * </ul></p> 1602 * <p>This key is available on all devices.</p> 1603 * 1604 * @see CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE 1605 * @see CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE 1606 * @see CaptureRequest#SCALER_CROP_REGION 1607 * @see #CONTROL_VIDEO_STABILIZATION_MODE_OFF 1608 * @see #CONTROL_VIDEO_STABILIZATION_MODE_ON 1609 */ 1610 @PublicKey 1611 public static final Key<Integer> CONTROL_VIDEO_STABILIZATION_MODE = 1612 new Key<Integer>("android.control.videoStabilizationMode", int.class); 1613 1614 /** 1615 * <p>The amount of additional sensitivity boost applied to output images 1616 * after RAW sensor data is captured.</p> 1617 * <p>Some camera devices support additional digital sensitivity boosting in the 1618 * camera processing pipeline after sensor RAW image is captured. 1619 * Such a boost will be applied to YUV/JPEG format output images but will not 1620 * have effect on RAW output formats like RAW_SENSOR, RAW10, RAW12 or RAW_OPAQUE.</p> 1621 * <p>This key will be <code>null</code> for devices that do not support any RAW format 1622 * outputs. For devices that do support RAW format outputs, this key will always 1623 * present, and if a device does not support post RAW sensitivity boost, it will 1624 * list <code>100</code> in this key.</p> 1625 * <p>If the camera device cannot apply the exact boost requested, it will reduce the 1626 * boost to the nearest supported value. 1627 * The final boost value used will be available in the output capture result.</p> 1628 * <p>For devices that support post RAW sensitivity boost, the YUV/JPEG output images 1629 * of such device will have the total sensitivity of 1630 * <code>{@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity} * {@link CaptureRequest#CONTROL_POST_RAW_SENSITIVITY_BOOST android.control.postRawSensitivityBoost} / 100</code> 1631 * The sensitivity of RAW format images will always be <code>{@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}</code></p> 1632 * <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 1633 * OFF; otherwise the auto-exposure algorithm will override this value.</p> 1634 * <p><b>Units</b>: ISO arithmetic units, the same as {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}</p> 1635 * <p><b>Range of valid values:</b><br> 1636 * {@link CameraCharacteristics#CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE android.control.postRawSensitivityBoostRange}</p> 1637 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1638 * 1639 * @see CaptureRequest#CONTROL_AE_MODE 1640 * @see CaptureRequest#CONTROL_MODE 1641 * @see CaptureRequest#CONTROL_POST_RAW_SENSITIVITY_BOOST 1642 * @see CameraCharacteristics#CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE 1643 * @see CaptureRequest#SENSOR_SENSITIVITY 1644 */ 1645 @PublicKey 1646 public static final Key<Integer> CONTROL_POST_RAW_SENSITIVITY_BOOST = 1647 new Key<Integer>("android.control.postRawSensitivityBoost", int.class); 1648 1649 /** 1650 * <p>Allow camera device to enable zero-shutter-lag mode for requests with 1651 * {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} == STILL_CAPTURE.</p> 1652 * <p>If enableZsl is <code>true</code>, the camera device may enable zero-shutter-lag mode for requests with 1653 * STILL_CAPTURE capture intent. The camera device may use images captured in the past to 1654 * produce output images for a zero-shutter-lag request. The result metadata including the 1655 * {@link CaptureResult#SENSOR_TIMESTAMP android.sensor.timestamp} reflects the source frames used to produce output images. 1656 * Therefore, the contents of the output images and the result metadata may be out of order 1657 * compared to previous regular requests. enableZsl does not affect requests with other 1658 * capture intents.</p> 1659 * <p>For example, when requests are submitted in the following order: 1660 * Request A: enableZsl is ON, {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} is PREVIEW 1661 * Request B: enableZsl is ON, {@link CaptureRequest#CONTROL_CAPTURE_INTENT android.control.captureIntent} is STILL_CAPTURE</p> 1662 * <p>The output images for request B may have contents captured before the output images for 1663 * request A, and the result metadata for request B may be older than the result metadata for 1664 * request A.</p> 1665 * <p>Note that when enableZsl is <code>true</code>, it is not guaranteed to get output images captured in 1666 * the past for requests with STILL_CAPTURE capture intent.</p> 1667 * <p>For applications targeting SDK versions O and newer, the value of enableZsl in 1668 * TEMPLATE_STILL_CAPTURE template may be <code>true</code>. The value in other templates is always 1669 * <code>false</code> if present.</p> 1670 * <p>For applications targeting SDK versions older than O, the value of enableZsl in all 1671 * capture templates is always <code>false</code> if present.</p> 1672 * <p>For application-operated ZSL, use CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p> 1673 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1674 * 1675 * @see CaptureRequest#CONTROL_CAPTURE_INTENT 1676 * @see CaptureResult#SENSOR_TIMESTAMP 1677 */ 1678 @PublicKey 1679 public static final Key<Boolean> CONTROL_ENABLE_ZSL = 1680 new Key<Boolean>("android.control.enableZsl", boolean.class); 1681 1682 /** 1683 * <p>Operation mode for edge 1684 * enhancement.</p> 1685 * <p>Edge enhancement improves sharpness and details in the captured image. OFF means 1686 * no enhancement will be applied by the camera device.</p> 1687 * <p>FAST/HIGH_QUALITY both mean camera device determined enhancement 1688 * will be applied. HIGH_QUALITY mode indicates that the 1689 * camera device will use the highest-quality enhancement algorithms, 1690 * even if it slows down capture rate. FAST means the camera device will 1691 * not slow down capture rate when applying edge enhancement. FAST may be the same as OFF if 1692 * edge enhancement will slow down capture rate. Every output stream will have a similar 1693 * amount of enhancement applied.</p> 1694 * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular 1695 * buffer of high-resolution images during preview and reprocess image(s) from that buffer 1696 * into a final capture when triggered by the user. In this mode, the camera device applies 1697 * edge enhancement to low-resolution streams (below maximum recording resolution) to 1698 * maximize preview quality, but does not apply edge enhancement to high-resolution streams, 1699 * since those will be reprocessed later if necessary.</p> 1700 * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera 1701 * device will apply FAST/HIGH_QUALITY YUV-domain edge enhancement, respectively. 1702 * The camera device may adjust its internal edge enhancement parameters for best 1703 * image quality based on the {@link CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR android.reprocess.effectiveExposureFactor}, if it is set.</p> 1704 * <p><b>Possible values:</b> 1705 * <ul> 1706 * <li>{@link #EDGE_MODE_OFF OFF}</li> 1707 * <li>{@link #EDGE_MODE_FAST FAST}</li> 1708 * <li>{@link #EDGE_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 1709 * <li>{@link #EDGE_MODE_ZERO_SHUTTER_LAG ZERO_SHUTTER_LAG}</li> 1710 * </ul></p> 1711 * <p><b>Available values for this device:</b><br> 1712 * {@link CameraCharacteristics#EDGE_AVAILABLE_EDGE_MODES android.edge.availableEdgeModes}</p> 1713 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1714 * <p><b>Full capability</b> - 1715 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 1716 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 1717 * 1718 * @see CameraCharacteristics#EDGE_AVAILABLE_EDGE_MODES 1719 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 1720 * @see CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR 1721 * @see #EDGE_MODE_OFF 1722 * @see #EDGE_MODE_FAST 1723 * @see #EDGE_MODE_HIGH_QUALITY 1724 * @see #EDGE_MODE_ZERO_SHUTTER_LAG 1725 */ 1726 @PublicKey 1727 public static final Key<Integer> EDGE_MODE = 1728 new Key<Integer>("android.edge.mode", int.class); 1729 1730 /** 1731 * <p>The desired mode for for the camera device's flash control.</p> 1732 * <p>This control is only effective when flash unit is available 1733 * (<code>{@link CameraCharacteristics#FLASH_INFO_AVAILABLE android.flash.info.available} == true</code>).</p> 1734 * <p>When this control is used, the {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} must be set to ON or OFF. 1735 * Otherwise, the camera device auto-exposure related flash control (ON_AUTO_FLASH, 1736 * ON_ALWAYS_FLASH, or ON_AUTO_FLASH_REDEYE) will override this control.</p> 1737 * <p>When set to OFF, the camera device will not fire flash for this capture.</p> 1738 * <p>When set to SINGLE, the camera device will fire flash regardless of the camera 1739 * device's auto-exposure routine's result. When used in still capture case, this 1740 * control should be used along with auto-exposure (AE) precapture metering sequence 1741 * ({@link CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER android.control.aePrecaptureTrigger}), otherwise, the image may be incorrectly exposed.</p> 1742 * <p>When set to TORCH, the flash will be on continuously. This mode can be used 1743 * for use cases such as preview, auto-focus assist, still capture, or video recording.</p> 1744 * <p>The flash status will be reported by {@link CaptureResult#FLASH_STATE android.flash.state} in the capture result metadata.</p> 1745 * <p><b>Possible values:</b> 1746 * <ul> 1747 * <li>{@link #FLASH_MODE_OFF OFF}</li> 1748 * <li>{@link #FLASH_MODE_SINGLE SINGLE}</li> 1749 * <li>{@link #FLASH_MODE_TORCH TORCH}</li> 1750 * </ul></p> 1751 * <p>This key is available on all devices.</p> 1752 * 1753 * @see CaptureRequest#CONTROL_AE_MODE 1754 * @see CaptureRequest#CONTROL_AE_PRECAPTURE_TRIGGER 1755 * @see CameraCharacteristics#FLASH_INFO_AVAILABLE 1756 * @see CaptureResult#FLASH_STATE 1757 * @see #FLASH_MODE_OFF 1758 * @see #FLASH_MODE_SINGLE 1759 * @see #FLASH_MODE_TORCH 1760 */ 1761 @PublicKey 1762 public static final Key<Integer> FLASH_MODE = 1763 new Key<Integer>("android.flash.mode", int.class); 1764 1765 /** 1766 * <p>Operational mode for hot pixel correction.</p> 1767 * <p>Hotpixel correction interpolates out, or otherwise removes, pixels 1768 * that do not accurately measure the incoming light (i.e. pixels that 1769 * are stuck at an arbitrary value or are oversensitive).</p> 1770 * <p><b>Possible values:</b> 1771 * <ul> 1772 * <li>{@link #HOT_PIXEL_MODE_OFF OFF}</li> 1773 * <li>{@link #HOT_PIXEL_MODE_FAST FAST}</li> 1774 * <li>{@link #HOT_PIXEL_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 1775 * </ul></p> 1776 * <p><b>Available values for this device:</b><br> 1777 * {@link CameraCharacteristics#HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES android.hotPixel.availableHotPixelModes}</p> 1778 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1779 * 1780 * @see CameraCharacteristics#HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES 1781 * @see #HOT_PIXEL_MODE_OFF 1782 * @see #HOT_PIXEL_MODE_FAST 1783 * @see #HOT_PIXEL_MODE_HIGH_QUALITY 1784 */ 1785 @PublicKey 1786 public static final Key<Integer> HOT_PIXEL_MODE = 1787 new Key<Integer>("android.hotPixel.mode", int.class); 1788 1789 /** 1790 * <p>A location object to use when generating image GPS metadata.</p> 1791 * <p>Setting a location object in a request will include the GPS coordinates of the location 1792 * into any JPEG images captured based on the request. These coordinates can then be 1793 * viewed by anyone who receives the JPEG image.</p> 1794 * <p>This key is available on all devices.</p> 1795 */ 1796 @PublicKey 1797 @SyntheticKey 1798 public static final Key<android.location.Location> JPEG_GPS_LOCATION = 1799 new Key<android.location.Location>("android.jpeg.gpsLocation", android.location.Location.class); 1800 1801 /** 1802 * <p>GPS coordinates to include in output JPEG 1803 * EXIF.</p> 1804 * <p><b>Range of valid values:</b><br> 1805 * (-180 - 180], [-90,90], [-inf, inf]</p> 1806 * <p>This key is available on all devices.</p> 1807 * @hide 1808 */ 1809 public static final Key<double[]> JPEG_GPS_COORDINATES = 1810 new Key<double[]>("android.jpeg.gpsCoordinates", double[].class); 1811 1812 /** 1813 * <p>32 characters describing GPS algorithm to 1814 * include in EXIF.</p> 1815 * <p><b>Units</b>: UTF-8 null-terminated string</p> 1816 * <p>This key is available on all devices.</p> 1817 * @hide 1818 */ 1819 public static final Key<String> JPEG_GPS_PROCESSING_METHOD = 1820 new Key<String>("android.jpeg.gpsProcessingMethod", String.class); 1821 1822 /** 1823 * <p>Time GPS fix was made to include in 1824 * EXIF.</p> 1825 * <p><b>Units</b>: UTC in seconds since January 1, 1970</p> 1826 * <p>This key is available on all devices.</p> 1827 * @hide 1828 */ 1829 public static final Key<Long> JPEG_GPS_TIMESTAMP = 1830 new Key<Long>("android.jpeg.gpsTimestamp", long.class); 1831 1832 /** 1833 * <p>The orientation for a JPEG image.</p> 1834 * <p>The clockwise rotation angle in degrees, relative to the orientation 1835 * to the camera, that the JPEG picture needs to be rotated by, to be viewed 1836 * upright.</p> 1837 * <p>Camera devices may either encode this value into the JPEG EXIF header, or 1838 * rotate the image data to match this orientation. When the image data is rotated, 1839 * the thumbnail data will also be rotated.</p> 1840 * <p>Note that this orientation is relative to the orientation of the camera sensor, given 1841 * by {@link CameraCharacteristics#SENSOR_ORIENTATION android.sensor.orientation}.</p> 1842 * <p>To translate from the device orientation given by the Android sensor APIs, the following 1843 * sample code may be used:</p> 1844 * <pre><code>private int getJpegOrientation(CameraCharacteristics c, int deviceOrientation) { 1845 * if (deviceOrientation == android.view.OrientationEventListener.ORIENTATION_UNKNOWN) return 0; 1846 * int sensorOrientation = c.get(CameraCharacteristics.SENSOR_ORIENTATION); 1847 * 1848 * // Round device orientation to a multiple of 90 1849 * deviceOrientation = (deviceOrientation + 45) / 90 * 90; 1850 * 1851 * // Reverse device orientation for front-facing cameras 1852 * boolean facingFront = c.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT; 1853 * if (facingFront) deviceOrientation = -deviceOrientation; 1854 * 1855 * // Calculate desired JPEG orientation relative to camera orientation to make 1856 * // the image upright relative to the device orientation 1857 * int jpegOrientation = (sensorOrientation + deviceOrientation + 360) % 360; 1858 * 1859 * return jpegOrientation; 1860 * } 1861 * </code></pre> 1862 * <p><b>Units</b>: Degrees in multiples of 90</p> 1863 * <p><b>Range of valid values:</b><br> 1864 * 0, 90, 180, 270</p> 1865 * <p>This key is available on all devices.</p> 1866 * 1867 * @see CameraCharacteristics#SENSOR_ORIENTATION 1868 */ 1869 @PublicKey 1870 public static final Key<Integer> JPEG_ORIENTATION = 1871 new Key<Integer>("android.jpeg.orientation", int.class); 1872 1873 /** 1874 * <p>Compression quality of the final JPEG 1875 * image.</p> 1876 * <p>85-95 is typical usage range.</p> 1877 * <p><b>Range of valid values:</b><br> 1878 * 1-100; larger is higher quality</p> 1879 * <p>This key is available on all devices.</p> 1880 */ 1881 @PublicKey 1882 public static final Key<Byte> JPEG_QUALITY = 1883 new Key<Byte>("android.jpeg.quality", byte.class); 1884 1885 /** 1886 * <p>Compression quality of JPEG 1887 * thumbnail.</p> 1888 * <p><b>Range of valid values:</b><br> 1889 * 1-100; larger is higher quality</p> 1890 * <p>This key is available on all devices.</p> 1891 */ 1892 @PublicKey 1893 public static final Key<Byte> JPEG_THUMBNAIL_QUALITY = 1894 new Key<Byte>("android.jpeg.thumbnailQuality", byte.class); 1895 1896 /** 1897 * <p>Resolution of embedded JPEG thumbnail.</p> 1898 * <p>When set to (0, 0) value, the JPEG EXIF will not contain thumbnail, 1899 * but the captured JPEG will still be a valid image.</p> 1900 * <p>For best results, when issuing a request for a JPEG image, the thumbnail size selected 1901 * should have the same aspect ratio as the main JPEG output.</p> 1902 * <p>If the thumbnail image aspect ratio differs from the JPEG primary image aspect 1903 * ratio, the camera device creates the thumbnail by cropping it from the primary image. 1904 * For example, if the primary image has 4:3 aspect ratio, the thumbnail image has 1905 * 16:9 aspect ratio, the primary image will be cropped vertically (letterbox) to 1906 * generate the thumbnail image. The thumbnail image will always have a smaller Field 1907 * Of View (FOV) than the primary image when aspect ratios differ.</p> 1908 * <p>When an {@link CaptureRequest#JPEG_ORIENTATION android.jpeg.orientation} of non-zero degree is requested, 1909 * the camera device will handle thumbnail rotation in one of the following ways:</p> 1910 * <ul> 1911 * <li>Set the {@link android.media.ExifInterface#TAG_ORIENTATION EXIF orientation flag} 1912 * and keep jpeg and thumbnail image data unrotated.</li> 1913 * <li>Rotate the jpeg and thumbnail image data and not set 1914 * {@link android.media.ExifInterface#TAG_ORIENTATION EXIF orientation flag}. In this 1915 * case, LIMITED or FULL hardware level devices will report rotated thumnail size in 1916 * capture result, so the width and height will be interchanged if 90 or 270 degree 1917 * orientation is requested. LEGACY device will always report unrotated thumbnail 1918 * size.</li> 1919 * </ul> 1920 * <p><b>Range of valid values:</b><br> 1921 * {@link CameraCharacteristics#JPEG_AVAILABLE_THUMBNAIL_SIZES android.jpeg.availableThumbnailSizes}</p> 1922 * <p>This key is available on all devices.</p> 1923 * 1924 * @see CameraCharacteristics#JPEG_AVAILABLE_THUMBNAIL_SIZES 1925 * @see CaptureRequest#JPEG_ORIENTATION 1926 */ 1927 @PublicKey 1928 public static final Key<android.util.Size> JPEG_THUMBNAIL_SIZE = 1929 new Key<android.util.Size>("android.jpeg.thumbnailSize", android.util.Size.class); 1930 1931 /** 1932 * <p>The desired lens aperture size, as a ratio of lens focal length to the 1933 * effective aperture diameter.</p> 1934 * <p>Setting this value is only supported on the camera devices that have a variable 1935 * aperture lens.</p> 1936 * <p>When this is supported and {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is OFF, 1937 * this can be set along with {@link CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime}, 1938 * {@link CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}, and {@link CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration} 1939 * to achieve manual exposure control.</p> 1940 * <p>The requested aperture value may take several frames to reach the 1941 * requested value; the camera device will report the current (intermediate) 1942 * aperture size in capture result metadata while the aperture is changing. 1943 * While the aperture is still changing, {@link CaptureResult#LENS_STATE android.lens.state} will be set to MOVING.</p> 1944 * <p>When this is supported and {@link CaptureRequest#CONTROL_AE_MODE android.control.aeMode} is one of 1945 * the ON modes, this will be overridden by the camera device 1946 * auto-exposure algorithm, the overridden values are then provided 1947 * back to the user in the corresponding result.</p> 1948 * <p><b>Units</b>: The f-number (f/N)</p> 1949 * <p><b>Range of valid values:</b><br> 1950 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_APERTURES android.lens.info.availableApertures}</p> 1951 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1952 * <p><b>Full capability</b> - 1953 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 1954 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 1955 * 1956 * @see CaptureRequest#CONTROL_AE_MODE 1957 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 1958 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_APERTURES 1959 * @see CaptureResult#LENS_STATE 1960 * @see CaptureRequest#SENSOR_EXPOSURE_TIME 1961 * @see CaptureRequest#SENSOR_FRAME_DURATION 1962 * @see CaptureRequest#SENSOR_SENSITIVITY 1963 */ 1964 @PublicKey 1965 public static final Key<Float> LENS_APERTURE = 1966 new Key<Float>("android.lens.aperture", float.class); 1967 1968 /** 1969 * <p>The desired setting for the lens neutral density filter(s).</p> 1970 * <p>This control will not be supported on most camera devices.</p> 1971 * <p>Lens filters are typically used to lower the amount of light the 1972 * sensor is exposed to (measured in steps of EV). As used here, an EV 1973 * step is the standard logarithmic representation, which are 1974 * non-negative, and inversely proportional to the amount of light 1975 * hitting the sensor. For example, setting this to 0 would result 1976 * in no reduction of the incoming light, and setting this to 2 would 1977 * mean that the filter is set to reduce incoming light by two stops 1978 * (allowing 1/4 of the prior amount of light to the sensor).</p> 1979 * <p>It may take several frames before the lens filter density changes 1980 * to the requested value. While the filter density is still changing, 1981 * {@link CaptureResult#LENS_STATE android.lens.state} will be set to MOVING.</p> 1982 * <p><b>Units</b>: Exposure Value (EV)</p> 1983 * <p><b>Range of valid values:</b><br> 1984 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_FILTER_DENSITIES android.lens.info.availableFilterDensities}</p> 1985 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 1986 * <p><b>Full capability</b> - 1987 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 1988 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 1989 * 1990 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 1991 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_FILTER_DENSITIES 1992 * @see CaptureResult#LENS_STATE 1993 */ 1994 @PublicKey 1995 public static final Key<Float> LENS_FILTER_DENSITY = 1996 new Key<Float>("android.lens.filterDensity", float.class); 1997 1998 /** 1999 * <p>The desired lens focal length; used for optical zoom.</p> 2000 * <p>This setting controls the physical focal length of the camera 2001 * device's lens. Changing the focal length changes the field of 2002 * view of the camera device, and is usually used for optical zoom.</p> 2003 * <p>Like {@link CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance} and {@link CaptureRequest#LENS_APERTURE android.lens.aperture}, this 2004 * setting won't be applied instantaneously, and it may take several 2005 * frames before the lens can change to the requested focal length. 2006 * While the focal length is still changing, {@link CaptureResult#LENS_STATE android.lens.state} will 2007 * be set to MOVING.</p> 2008 * <p>Optical zoom will not be supported on most devices.</p> 2009 * <p><b>Units</b>: Millimeters</p> 2010 * <p><b>Range of valid values:</b><br> 2011 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_FOCAL_LENGTHS android.lens.info.availableFocalLengths}</p> 2012 * <p>This key is available on all devices.</p> 2013 * 2014 * @see CaptureRequest#LENS_APERTURE 2015 * @see CaptureRequest#LENS_FOCUS_DISTANCE 2016 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_FOCAL_LENGTHS 2017 * @see CaptureResult#LENS_STATE 2018 */ 2019 @PublicKey 2020 public static final Key<Float> LENS_FOCAL_LENGTH = 2021 new Key<Float>("android.lens.focalLength", float.class); 2022 2023 /** 2024 * <p>Desired distance to plane of sharpest focus, 2025 * measured from frontmost surface of the lens.</p> 2026 * <p>This control can be used for setting manual focus, on devices that support 2027 * the MANUAL_SENSOR capability and have a variable-focus lens (see 2028 * {@link CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance}).</p> 2029 * <p>A value of <code>0.0f</code> means infinity focus. The value set will be clamped to 2030 * <code>[0.0f, {@link CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance}]</code>.</p> 2031 * <p>Like {@link CaptureRequest#LENS_FOCAL_LENGTH android.lens.focalLength}, this setting won't be applied 2032 * instantaneously, and it may take several frames before the lens 2033 * can move to the requested focus distance. While the lens is still moving, 2034 * {@link CaptureResult#LENS_STATE android.lens.state} will be set to MOVING.</p> 2035 * <p>LEGACY devices support at most setting this to <code>0.0f</code> 2036 * for infinity focus.</p> 2037 * <p><b>Units</b>: See {@link CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION android.lens.info.focusDistanceCalibration} for details</p> 2038 * <p><b>Range of valid values:</b><br> 2039 * >= 0</p> 2040 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2041 * <p><b>Full capability</b> - 2042 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2043 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2044 * 2045 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2046 * @see CaptureRequest#LENS_FOCAL_LENGTH 2047 * @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION 2048 * @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE 2049 * @see CaptureResult#LENS_STATE 2050 */ 2051 @PublicKey 2052 public static final Key<Float> LENS_FOCUS_DISTANCE = 2053 new Key<Float>("android.lens.focusDistance", float.class); 2054 2055 /** 2056 * <p>Sets whether the camera device uses optical image stabilization (OIS) 2057 * when capturing images.</p> 2058 * <p>OIS is used to compensate for motion blur due to small 2059 * movements of the camera during capture. Unlike digital image 2060 * stabilization ({@link CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE android.control.videoStabilizationMode}), OIS 2061 * makes use of mechanical elements to stabilize the camera 2062 * sensor, and thus allows for longer exposure times before 2063 * camera shake becomes apparent.</p> 2064 * <p>Switching between different optical stabilization modes may take several 2065 * frames to initialize, the camera device will report the current mode in 2066 * capture result metadata. For example, When "ON" mode is requested, the 2067 * optical stabilization modes in the first several capture results may still 2068 * be "OFF", and it will become "ON" when the initialization is done.</p> 2069 * <p>If a camera device supports both OIS and digital image stabilization 2070 * ({@link CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE android.control.videoStabilizationMode}), turning both modes on may produce undesirable 2071 * interaction, so it is recommended not to enable both at the same time.</p> 2072 * <p>Not all devices will support OIS; see 2073 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION android.lens.info.availableOpticalStabilization} for 2074 * available controls.</p> 2075 * <p><b>Possible values:</b> 2076 * <ul> 2077 * <li>{@link #LENS_OPTICAL_STABILIZATION_MODE_OFF OFF}</li> 2078 * <li>{@link #LENS_OPTICAL_STABILIZATION_MODE_ON ON}</li> 2079 * </ul></p> 2080 * <p><b>Available values for this device:</b><br> 2081 * {@link CameraCharacteristics#LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION android.lens.info.availableOpticalStabilization}</p> 2082 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2083 * <p><b>Limited capability</b> - 2084 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 2085 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2086 * 2087 * @see CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE 2088 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2089 * @see CameraCharacteristics#LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION 2090 * @see #LENS_OPTICAL_STABILIZATION_MODE_OFF 2091 * @see #LENS_OPTICAL_STABILIZATION_MODE_ON 2092 */ 2093 @PublicKey 2094 public static final Key<Integer> LENS_OPTICAL_STABILIZATION_MODE = 2095 new Key<Integer>("android.lens.opticalStabilizationMode", int.class); 2096 2097 /** 2098 * <p>Mode of operation for the noise reduction algorithm.</p> 2099 * <p>The noise reduction algorithm attempts to improve image quality by removing 2100 * excessive noise added by the capture process, especially in dark conditions.</p> 2101 * <p>OFF means no noise reduction will be applied by the camera device, for both raw and 2102 * YUV domain.</p> 2103 * <p>MINIMAL means that only sensor raw domain basic noise reduction is enabled ,to remove 2104 * demosaicing or other processing artifacts. For YUV_REPROCESSING, MINIMAL is same as OFF. 2105 * This mode is optional, may not be support by all devices. The application should check 2106 * {@link CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES android.noiseReduction.availableNoiseReductionModes} before using it.</p> 2107 * <p>FAST/HIGH_QUALITY both mean camera device determined noise filtering 2108 * will be applied. HIGH_QUALITY mode indicates that the camera device 2109 * will use the highest-quality noise filtering algorithms, 2110 * even if it slows down capture rate. FAST means the camera device will not 2111 * slow down capture rate when applying noise filtering. FAST may be the same as MINIMAL if 2112 * MINIMAL is listed, or the same as OFF if any noise filtering will slow down capture rate. 2113 * Every output stream will have a similar amount of enhancement applied.</p> 2114 * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular 2115 * buffer of high-resolution images during preview and reprocess image(s) from that buffer 2116 * into a final capture when triggered by the user. In this mode, the camera device applies 2117 * noise reduction to low-resolution streams (below maximum recording resolution) to maximize 2118 * preview quality, but does not apply noise reduction to high-resolution streams, since 2119 * those will be reprocessed later if necessary.</p> 2120 * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera device 2121 * will apply FAST/HIGH_QUALITY YUV domain noise reduction, respectively. The camera device 2122 * may adjust the noise reduction parameters for best image quality based on the 2123 * {@link CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR android.reprocess.effectiveExposureFactor} if it is set.</p> 2124 * <p><b>Possible values:</b> 2125 * <ul> 2126 * <li>{@link #NOISE_REDUCTION_MODE_OFF OFF}</li> 2127 * <li>{@link #NOISE_REDUCTION_MODE_FAST FAST}</li> 2128 * <li>{@link #NOISE_REDUCTION_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 2129 * <li>{@link #NOISE_REDUCTION_MODE_MINIMAL MINIMAL}</li> 2130 * <li>{@link #NOISE_REDUCTION_MODE_ZERO_SHUTTER_LAG ZERO_SHUTTER_LAG}</li> 2131 * </ul></p> 2132 * <p><b>Available values for this device:</b><br> 2133 * {@link CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES android.noiseReduction.availableNoiseReductionModes}</p> 2134 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2135 * <p><b>Full capability</b> - 2136 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2137 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2138 * 2139 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2140 * @see CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES 2141 * @see CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR 2142 * @see #NOISE_REDUCTION_MODE_OFF 2143 * @see #NOISE_REDUCTION_MODE_FAST 2144 * @see #NOISE_REDUCTION_MODE_HIGH_QUALITY 2145 * @see #NOISE_REDUCTION_MODE_MINIMAL 2146 * @see #NOISE_REDUCTION_MODE_ZERO_SHUTTER_LAG 2147 */ 2148 @PublicKey 2149 public static final Key<Integer> NOISE_REDUCTION_MODE = 2150 new Key<Integer>("android.noiseReduction.mode", int.class); 2151 2152 /** 2153 * <p>An application-specified ID for the current 2154 * request. Must be maintained unchanged in output 2155 * frame</p> 2156 * <p><b>Units</b>: arbitrary integer assigned by application</p> 2157 * <p><b>Range of valid values:</b><br> 2158 * Any int</p> 2159 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2160 * @hide 2161 */ 2162 public static final Key<Integer> REQUEST_ID = 2163 new Key<Integer>("android.request.id", int.class); 2164 2165 /** 2166 * <p>The desired region of the sensor to read out for this capture.</p> 2167 * <p>This control can be used to implement digital zoom.</p> 2168 * <p>The crop region coordinate system is based off 2169 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}, with <code>(0, 0)</code> being the 2170 * top-left corner of the sensor active array.</p> 2171 * <p>Output streams use this rectangle to produce their output, 2172 * cropping to a smaller region if necessary to maintain the 2173 * stream's aspect ratio, then scaling the sensor input to 2174 * match the output's configured resolution.</p> 2175 * <p>The crop region is applied after the RAW to other color 2176 * space (e.g. YUV) conversion. Since raw streams 2177 * (e.g. RAW16) don't have the conversion stage, they are not 2178 * croppable. The crop region will be ignored by raw streams.</p> 2179 * <p>For non-raw streams, any additional per-stream cropping will 2180 * be done to maximize the final pixel area of the stream.</p> 2181 * <p>For example, if the crop region is set to a 4:3 aspect 2182 * ratio, then 4:3 streams will use the exact crop 2183 * region. 16:9 streams will further crop vertically 2184 * (letterbox).</p> 2185 * <p>Conversely, if the crop region is set to a 16:9, then 4:3 2186 * outputs will crop horizontally (pillarbox), and 16:9 2187 * streams will match exactly. These additional crops will 2188 * be centered within the crop region.</p> 2189 * <p>The width and height of the crop region cannot 2190 * be set to be smaller than 2191 * <code>floor( activeArraySize.width / {@link CameraCharacteristics#SCALER_AVAILABLE_MAX_DIGITAL_ZOOM android.scaler.availableMaxDigitalZoom} )</code> and 2192 * <code>floor( activeArraySize.height / {@link CameraCharacteristics#SCALER_AVAILABLE_MAX_DIGITAL_ZOOM android.scaler.availableMaxDigitalZoom} )</code>, respectively.</p> 2193 * <p>The camera device may adjust the crop region to account 2194 * for rounding and other hardware requirements; the final 2195 * crop region used will be included in the output capture 2196 * result.</p> 2197 * <p><b>Units</b>: Pixel coordinates relative to 2198 * {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</p> 2199 * <p>This key is available on all devices.</p> 2200 * 2201 * @see CameraCharacteristics#SCALER_AVAILABLE_MAX_DIGITAL_ZOOM 2202 * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE 2203 */ 2204 @PublicKey 2205 public static final Key<android.graphics.Rect> SCALER_CROP_REGION = 2206 new Key<android.graphics.Rect>("android.scaler.cropRegion", android.graphics.Rect.class); 2207 2208 /** 2209 * <p>Duration each pixel is exposed to 2210 * light.</p> 2211 * <p>If the sensor can't expose this exact duration, it will shorten the 2212 * duration exposed to the nearest possible value (rather than expose longer). 2213 * The final exposure time used will be available in the output capture result.</p> 2214 * <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 2215 * OFF; otherwise the auto-exposure algorithm will override this value.</p> 2216 * <p><b>Units</b>: Nanoseconds</p> 2217 * <p><b>Range of valid values:</b><br> 2218 * {@link CameraCharacteristics#SENSOR_INFO_EXPOSURE_TIME_RANGE android.sensor.info.exposureTimeRange}</p> 2219 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2220 * <p><b>Full capability</b> - 2221 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2222 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2223 * 2224 * @see CaptureRequest#CONTROL_AE_MODE 2225 * @see CaptureRequest#CONTROL_MODE 2226 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2227 * @see CameraCharacteristics#SENSOR_INFO_EXPOSURE_TIME_RANGE 2228 */ 2229 @PublicKey 2230 public static final Key<Long> SENSOR_EXPOSURE_TIME = 2231 new Key<Long>("android.sensor.exposureTime", long.class); 2232 2233 /** 2234 * <p>Duration from start of frame exposure to 2235 * start of next frame exposure.</p> 2236 * <p>The maximum frame rate that can be supported by a camera subsystem is 2237 * a function of many factors:</p> 2238 * <ul> 2239 * <li>Requested resolutions of output image streams</li> 2240 * <li>Availability of binning / skipping modes on the imager</li> 2241 * <li>The bandwidth of the imager interface</li> 2242 * <li>The bandwidth of the various ISP processing blocks</li> 2243 * </ul> 2244 * <p>Since these factors can vary greatly between different ISPs and 2245 * sensors, the camera abstraction tries to represent the bandwidth 2246 * restrictions with as simple a model as possible.</p> 2247 * <p>The model presented has the following characteristics:</p> 2248 * <ul> 2249 * <li>The image sensor is always configured to output the smallest 2250 * resolution possible given the application's requested output stream 2251 * sizes. The smallest resolution is defined as being at least as large 2252 * as the largest requested output stream size; the camera pipeline must 2253 * never digitally upsample sensor data when the crop region covers the 2254 * whole sensor. In general, this means that if only small output stream 2255 * resolutions are configured, the sensor can provide a higher frame 2256 * rate.</li> 2257 * <li>Since any request may use any or all the currently configured 2258 * output streams, the sensor and ISP must be configured to support 2259 * scaling a single capture to all the streams at the same time. This 2260 * means the camera pipeline must be ready to produce the largest 2261 * requested output size without any delay. Therefore, the overall 2262 * frame rate of a given configured stream set is governed only by the 2263 * largest requested stream resolution.</li> 2264 * <li>Using more than one output stream in a request does not affect the 2265 * frame duration.</li> 2266 * <li>Certain format-streams may need to do additional background processing 2267 * before data is consumed/produced by that stream. These processors 2268 * can run concurrently to the rest of the camera pipeline, but 2269 * cannot process more than 1 capture at a time.</li> 2270 * </ul> 2271 * <p>The necessary information for the application, given the model above, 2272 * is provided via the {@link CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap} field using 2273 * {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputMinFrameDuration }. 2274 * These are used to determine the maximum frame rate / minimum frame 2275 * duration that is possible for a given stream configuration.</p> 2276 * <p>Specifically, the application can use the following rules to 2277 * determine the minimum frame duration it can request from the camera 2278 * device:</p> 2279 * <ol> 2280 * <li>Let the set of currently configured input/output streams 2281 * be called <code>S</code>.</li> 2282 * <li>Find the minimum frame durations for each stream in <code>S</code>, by looking 2283 * it up in {@link CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap} using {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputMinFrameDuration } 2284 * (with its respective size/format). Let this set of frame durations be 2285 * called <code>F</code>.</li> 2286 * <li>For any given request <code>R</code>, the minimum frame duration allowed 2287 * for <code>R</code> is the maximum out of all values in <code>F</code>. Let the streams 2288 * used in <code>R</code> be called <code>S_r</code>.</li> 2289 * </ol> 2290 * <p>If none of the streams in <code>S_r</code> have a stall time (listed in {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputStallDuration } 2291 * using its respective size/format), then the frame duration in <code>F</code> 2292 * determines the steady state frame rate that the application will get 2293 * if it uses <code>R</code> as a repeating request. Let this special kind of 2294 * request be called <code>Rsimple</code>.</p> 2295 * <p>A repeating request <code>Rsimple</code> can be <em>occasionally</em> interleaved 2296 * by a single capture of a new request <code>Rstall</code> (which has at least 2297 * one in-use stream with a non-0 stall time) and if <code>Rstall</code> has the 2298 * same minimum frame duration this will not cause a frame rate loss 2299 * if all buffers from the previous <code>Rstall</code> have already been 2300 * delivered.</p> 2301 * <p>For more details about stalling, see 2302 * {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputStallDuration }.</p> 2303 * <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 2304 * OFF; otherwise the auto-exposure algorithm will override this value.</p> 2305 * <p><b>Units</b>: Nanoseconds</p> 2306 * <p><b>Range of valid values:</b><br> 2307 * See {@link CameraCharacteristics#SENSOR_INFO_MAX_FRAME_DURATION android.sensor.info.maxFrameDuration}, 2308 * {@link CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap}. The duration 2309 * is capped to <code>max(duration, exposureTime + overhead)</code>.</p> 2310 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2311 * <p><b>Full capability</b> - 2312 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2313 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2314 * 2315 * @see CaptureRequest#CONTROL_AE_MODE 2316 * @see CaptureRequest#CONTROL_MODE 2317 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2318 * @see CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP 2319 * @see CameraCharacteristics#SENSOR_INFO_MAX_FRAME_DURATION 2320 */ 2321 @PublicKey 2322 public static final Key<Long> SENSOR_FRAME_DURATION = 2323 new Key<Long>("android.sensor.frameDuration", long.class); 2324 2325 /** 2326 * <p>The amount of gain applied to sensor data 2327 * before processing.</p> 2328 * <p>The sensitivity is the standard ISO sensitivity value, 2329 * as defined in ISO 12232:2006.</p> 2330 * <p>The sensitivity must be within {@link CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE android.sensor.info.sensitivityRange}, and 2331 * if if it less than {@link CameraCharacteristics#SENSOR_MAX_ANALOG_SENSITIVITY android.sensor.maxAnalogSensitivity}, the camera device 2332 * is guaranteed to use only analog amplification for applying the gain.</p> 2333 * <p>If the camera device cannot apply the exact sensitivity 2334 * requested, it will reduce the gain to the nearest supported 2335 * value. The final sensitivity used will be available in the 2336 * output capture result.</p> 2337 * <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 2338 * OFF; otherwise the auto-exposure algorithm will override this value.</p> 2339 * <p><b>Units</b>: ISO arithmetic units</p> 2340 * <p><b>Range of valid values:</b><br> 2341 * {@link CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE android.sensor.info.sensitivityRange}</p> 2342 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2343 * <p><b>Full capability</b> - 2344 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2345 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2346 * 2347 * @see CaptureRequest#CONTROL_AE_MODE 2348 * @see CaptureRequest#CONTROL_MODE 2349 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2350 * @see CameraCharacteristics#SENSOR_INFO_SENSITIVITY_RANGE 2351 * @see CameraCharacteristics#SENSOR_MAX_ANALOG_SENSITIVITY 2352 */ 2353 @PublicKey 2354 public static final Key<Integer> SENSOR_SENSITIVITY = 2355 new Key<Integer>("android.sensor.sensitivity", int.class); 2356 2357 /** 2358 * <p>A pixel <code>[R, G_even, G_odd, B]</code> that supplies the test pattern 2359 * when {@link CaptureRequest#SENSOR_TEST_PATTERN_MODE android.sensor.testPatternMode} is SOLID_COLOR.</p> 2360 * <p>Each color channel is treated as an unsigned 32-bit integer. 2361 * The camera device then uses the most significant X bits 2362 * that correspond to how many bits are in its Bayer raw sensor 2363 * output.</p> 2364 * <p>For example, a sensor with RAW10 Bayer output would use the 2365 * 10 most significant bits from each color channel.</p> 2366 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2367 * 2368 * @see CaptureRequest#SENSOR_TEST_PATTERN_MODE 2369 */ 2370 @PublicKey 2371 public static final Key<int[]> SENSOR_TEST_PATTERN_DATA = 2372 new Key<int[]>("android.sensor.testPatternData", int[].class); 2373 2374 /** 2375 * <p>When enabled, the sensor sends a test pattern instead of 2376 * doing a real exposure from the camera.</p> 2377 * <p>When a test pattern is enabled, all manual sensor controls specified 2378 * by android.sensor.* will be ignored. All other controls should 2379 * work as normal.</p> 2380 * <p>For example, if manual flash is enabled, flash firing should still 2381 * occur (and that the test pattern remain unmodified, since the flash 2382 * would not actually affect it).</p> 2383 * <p>Defaults to OFF.</p> 2384 * <p><b>Possible values:</b> 2385 * <ul> 2386 * <li>{@link #SENSOR_TEST_PATTERN_MODE_OFF OFF}</li> 2387 * <li>{@link #SENSOR_TEST_PATTERN_MODE_SOLID_COLOR SOLID_COLOR}</li> 2388 * <li>{@link #SENSOR_TEST_PATTERN_MODE_COLOR_BARS COLOR_BARS}</li> 2389 * <li>{@link #SENSOR_TEST_PATTERN_MODE_COLOR_BARS_FADE_TO_GRAY COLOR_BARS_FADE_TO_GRAY}</li> 2390 * <li>{@link #SENSOR_TEST_PATTERN_MODE_PN9 PN9}</li> 2391 * <li>{@link #SENSOR_TEST_PATTERN_MODE_CUSTOM1 CUSTOM1}</li> 2392 * </ul></p> 2393 * <p><b>Available values for this device:</b><br> 2394 * {@link CameraCharacteristics#SENSOR_AVAILABLE_TEST_PATTERN_MODES android.sensor.availableTestPatternModes}</p> 2395 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2396 * 2397 * @see CameraCharacteristics#SENSOR_AVAILABLE_TEST_PATTERN_MODES 2398 * @see #SENSOR_TEST_PATTERN_MODE_OFF 2399 * @see #SENSOR_TEST_PATTERN_MODE_SOLID_COLOR 2400 * @see #SENSOR_TEST_PATTERN_MODE_COLOR_BARS 2401 * @see #SENSOR_TEST_PATTERN_MODE_COLOR_BARS_FADE_TO_GRAY 2402 * @see #SENSOR_TEST_PATTERN_MODE_PN9 2403 * @see #SENSOR_TEST_PATTERN_MODE_CUSTOM1 2404 */ 2405 @PublicKey 2406 public static final Key<Integer> SENSOR_TEST_PATTERN_MODE = 2407 new Key<Integer>("android.sensor.testPatternMode", int.class); 2408 2409 /** 2410 * <p>Quality of lens shading correction applied 2411 * to the image data.</p> 2412 * <p>When set to OFF mode, no lens shading correction will be applied by the 2413 * camera device, and an identity lens shading map data will be provided 2414 * if <code>{@link CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE android.statistics.lensShadingMapMode} == ON</code>. For example, for lens 2415 * shading map with size of <code>[ 4, 3 ]</code>, 2416 * the output {@link CaptureResult#STATISTICS_LENS_SHADING_CORRECTION_MAP android.statistics.lensShadingCorrectionMap} for this case will be an identity 2417 * map shown below:</p> 2418 * <pre><code>[ 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 2419 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 2420 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 2421 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 2422 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 2423 * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 ] 2424 * </code></pre> 2425 * <p>When set to other modes, lens shading correction will be applied by the camera 2426 * device. Applications can request lens shading map data by setting 2427 * {@link CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE android.statistics.lensShadingMapMode} to ON, and then the camera device will provide lens 2428 * shading map data in {@link CaptureResult#STATISTICS_LENS_SHADING_CORRECTION_MAP android.statistics.lensShadingCorrectionMap}; the returned shading map 2429 * data will be the one applied by the camera device for this capture request.</p> 2430 * <p>The shading map data may depend on the auto-exposure (AE) and AWB statistics, therefore 2431 * the reliability of the map data may be affected by the AE and AWB algorithms. When AE and 2432 * 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> 2433 * OFF), to get best results, it is recommended that the applications wait for the AE and AWB 2434 * to be converged before using the returned shading map data.</p> 2435 * <p><b>Possible values:</b> 2436 * <ul> 2437 * <li>{@link #SHADING_MODE_OFF OFF}</li> 2438 * <li>{@link #SHADING_MODE_FAST FAST}</li> 2439 * <li>{@link #SHADING_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 2440 * </ul></p> 2441 * <p><b>Available values for this device:</b><br> 2442 * {@link CameraCharacteristics#SHADING_AVAILABLE_MODES android.shading.availableModes}</p> 2443 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2444 * <p><b>Full capability</b> - 2445 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2446 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2447 * 2448 * @see CaptureRequest#CONTROL_AE_MODE 2449 * @see CaptureRequest#CONTROL_AWB_MODE 2450 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2451 * @see CameraCharacteristics#SHADING_AVAILABLE_MODES 2452 * @see CaptureResult#STATISTICS_LENS_SHADING_CORRECTION_MAP 2453 * @see CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE 2454 * @see #SHADING_MODE_OFF 2455 * @see #SHADING_MODE_FAST 2456 * @see #SHADING_MODE_HIGH_QUALITY 2457 */ 2458 @PublicKey 2459 public static final Key<Integer> SHADING_MODE = 2460 new Key<Integer>("android.shading.mode", int.class); 2461 2462 /** 2463 * <p>Operating mode for the face detector 2464 * unit.</p> 2465 * <p>Whether face detection is enabled, and whether it 2466 * should output just the basic fields or the full set of 2467 * fields.</p> 2468 * <p><b>Possible values:</b> 2469 * <ul> 2470 * <li>{@link #STATISTICS_FACE_DETECT_MODE_OFF OFF}</li> 2471 * <li>{@link #STATISTICS_FACE_DETECT_MODE_SIMPLE SIMPLE}</li> 2472 * <li>{@link #STATISTICS_FACE_DETECT_MODE_FULL FULL}</li> 2473 * </ul></p> 2474 * <p><b>Available values for this device:</b><br> 2475 * {@link CameraCharacteristics#STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES android.statistics.info.availableFaceDetectModes}</p> 2476 * <p>This key is available on all devices.</p> 2477 * 2478 * @see CameraCharacteristics#STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES 2479 * @see #STATISTICS_FACE_DETECT_MODE_OFF 2480 * @see #STATISTICS_FACE_DETECT_MODE_SIMPLE 2481 * @see #STATISTICS_FACE_DETECT_MODE_FULL 2482 */ 2483 @PublicKey 2484 public static final Key<Integer> STATISTICS_FACE_DETECT_MODE = 2485 new Key<Integer>("android.statistics.faceDetectMode", int.class); 2486 2487 /** 2488 * <p>Operating mode for hot pixel map generation.</p> 2489 * <p>If set to <code>true</code>, a hot pixel map is returned in {@link CaptureResult#STATISTICS_HOT_PIXEL_MAP android.statistics.hotPixelMap}. 2490 * If set to <code>false</code>, no hot pixel map will be returned.</p> 2491 * <p><b>Range of valid values:</b><br> 2492 * {@link CameraCharacteristics#STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES android.statistics.info.availableHotPixelMapModes}</p> 2493 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2494 * 2495 * @see CaptureResult#STATISTICS_HOT_PIXEL_MAP 2496 * @see CameraCharacteristics#STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES 2497 */ 2498 @PublicKey 2499 public static final Key<Boolean> STATISTICS_HOT_PIXEL_MAP_MODE = 2500 new Key<Boolean>("android.statistics.hotPixelMapMode", boolean.class); 2501 2502 /** 2503 * <p>Whether the camera device will output the lens 2504 * shading map in output result metadata.</p> 2505 * <p>When set to ON, 2506 * android.statistics.lensShadingMap will be provided in 2507 * the output result metadata.</p> 2508 * <p>ON is always supported on devices with the RAW capability.</p> 2509 * <p><b>Possible values:</b> 2510 * <ul> 2511 * <li>{@link #STATISTICS_LENS_SHADING_MAP_MODE_OFF OFF}</li> 2512 * <li>{@link #STATISTICS_LENS_SHADING_MAP_MODE_ON ON}</li> 2513 * </ul></p> 2514 * <p><b>Available values for this device:</b><br> 2515 * {@link CameraCharacteristics#STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES android.statistics.info.availableLensShadingMapModes}</p> 2516 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2517 * <p><b>Full capability</b> - 2518 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2519 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2520 * 2521 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2522 * @see CameraCharacteristics#STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES 2523 * @see #STATISTICS_LENS_SHADING_MAP_MODE_OFF 2524 * @see #STATISTICS_LENS_SHADING_MAP_MODE_ON 2525 */ 2526 @PublicKey 2527 public static final Key<Integer> STATISTICS_LENS_SHADING_MAP_MODE = 2528 new Key<Integer>("android.statistics.lensShadingMapMode", int.class); 2529 2530 /** 2531 * <p>Tonemapping / contrast / gamma curve for the blue 2532 * channel, to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 2533 * CONTRAST_CURVE.</p> 2534 * <p>See android.tonemap.curveRed for more details.</p> 2535 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2536 * <p><b>Full capability</b> - 2537 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2538 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2539 * 2540 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2541 * @see CaptureRequest#TONEMAP_MODE 2542 * @hide 2543 */ 2544 public static final Key<float[]> TONEMAP_CURVE_BLUE = 2545 new Key<float[]>("android.tonemap.curveBlue", float[].class); 2546 2547 /** 2548 * <p>Tonemapping / contrast / gamma curve for the green 2549 * channel, to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 2550 * CONTRAST_CURVE.</p> 2551 * <p>See android.tonemap.curveRed for more details.</p> 2552 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2553 * <p><b>Full capability</b> - 2554 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2555 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2556 * 2557 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2558 * @see CaptureRequest#TONEMAP_MODE 2559 * @hide 2560 */ 2561 public static final Key<float[]> TONEMAP_CURVE_GREEN = 2562 new Key<float[]>("android.tonemap.curveGreen", float[].class); 2563 2564 /** 2565 * <p>Tonemapping / contrast / gamma curve for the red 2566 * channel, to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 2567 * CONTRAST_CURVE.</p> 2568 * <p>Each channel's curve is defined by an array of control points:</p> 2569 * <pre><code>android.tonemap.curveRed = 2570 * [ P0in, P0out, P1in, P1out, P2in, P2out, P3in, P3out, ..., PNin, PNout ] 2571 * 2 <= N <= {@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}</code></pre> 2572 * <p>These are sorted in order of increasing <code>Pin</code>; it is 2573 * required that input values 0.0 and 1.0 are included in the list to 2574 * define a complete mapping. For input values between control points, 2575 * the camera device must linearly interpolate between the control 2576 * points.</p> 2577 * <p>Each curve can have an independent number of points, and the number 2578 * of points can be less than max (that is, the request doesn't have to 2579 * always provide a curve with number of points equivalent to 2580 * {@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}).</p> 2581 * <p>A few examples, and their corresponding graphical mappings; these 2582 * only specify the red channel and the precision is limited to 4 2583 * digits, for conciseness.</p> 2584 * <p>Linear mapping:</p> 2585 * <pre><code>android.tonemap.curveRed = [ 0, 0, 1.0, 1.0 ] 2586 * </code></pre> 2587 * <p><img alt="Linear mapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/linear_tonemap.png" /></p> 2588 * <p>Invert mapping:</p> 2589 * <pre><code>android.tonemap.curveRed = [ 0, 1.0, 1.0, 0 ] 2590 * </code></pre> 2591 * <p><img alt="Inverting mapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/inverse_tonemap.png" /></p> 2592 * <p>Gamma 1/2.2 mapping, with 16 control points:</p> 2593 * <pre><code>android.tonemap.curveRed = [ 2594 * 0.0000, 0.0000, 0.0667, 0.2920, 0.1333, 0.4002, 0.2000, 0.4812, 2595 * 0.2667, 0.5484, 0.3333, 0.6069, 0.4000, 0.6594, 0.4667, 0.7072, 2596 * 0.5333, 0.7515, 0.6000, 0.7928, 0.6667, 0.8317, 0.7333, 0.8685, 2597 * 0.8000, 0.9035, 0.8667, 0.9370, 0.9333, 0.9691, 1.0000, 1.0000 ] 2598 * </code></pre> 2599 * <p><img alt="Gamma = 1/2.2 tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/gamma_tonemap.png" /></p> 2600 * <p>Standard sRGB gamma mapping, per IEC 61966-2-1:1999, with 16 control points:</p> 2601 * <pre><code>android.tonemap.curveRed = [ 2602 * 0.0000, 0.0000, 0.0667, 0.2864, 0.1333, 0.4007, 0.2000, 0.4845, 2603 * 0.2667, 0.5532, 0.3333, 0.6125, 0.4000, 0.6652, 0.4667, 0.7130, 2604 * 0.5333, 0.7569, 0.6000, 0.7977, 0.6667, 0.8360, 0.7333, 0.8721, 2605 * 0.8000, 0.9063, 0.8667, 0.9389, 0.9333, 0.9701, 1.0000, 1.0000 ] 2606 * </code></pre> 2607 * <p><img alt="sRGB tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p> 2608 * <p><b>Range of valid values:</b><br> 2609 * 0-1 on both input and output coordinates, normalized 2610 * as a floating-point value such that 0 == black and 1 == white.</p> 2611 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2612 * <p><b>Full capability</b> - 2613 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2614 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2615 * 2616 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2617 * @see CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS 2618 * @see CaptureRequest#TONEMAP_MODE 2619 * @hide 2620 */ 2621 public static final Key<float[]> TONEMAP_CURVE_RED = 2622 new Key<float[]>("android.tonemap.curveRed", float[].class); 2623 2624 /** 2625 * <p>Tonemapping / contrast / gamma curve to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} 2626 * is CONTRAST_CURVE.</p> 2627 * <p>The tonemapCurve consist of three curves for each of red, green, and blue 2628 * channels respectively. The following example uses the red channel as an 2629 * example. The same logic applies to green and blue channel. 2630 * Each channel's curve is defined by an array of control points:</p> 2631 * <pre><code>curveRed = 2632 * [ P0(in, out), P1(in, out), P2(in, out), P3(in, out), ..., PN(in, out) ] 2633 * 2 <= N <= {@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}</code></pre> 2634 * <p>These are sorted in order of increasing <code>Pin</code>; it is always 2635 * guaranteed that input values 0.0 and 1.0 are included in the list to 2636 * define a complete mapping. For input values between control points, 2637 * the camera device must linearly interpolate between the control 2638 * points.</p> 2639 * <p>Each curve can have an independent number of points, and the number 2640 * of points can be less than max (that is, the request doesn't have to 2641 * always provide a curve with number of points equivalent to 2642 * {@link CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS android.tonemap.maxCurvePoints}).</p> 2643 * <p>A few examples, and their corresponding graphical mappings; these 2644 * only specify the red channel and the precision is limited to 4 2645 * digits, for conciseness.</p> 2646 * <p>Linear mapping:</p> 2647 * <pre><code>curveRed = [ (0, 0), (1.0, 1.0) ] 2648 * </code></pre> 2649 * <p><img alt="Linear mapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/linear_tonemap.png" /></p> 2650 * <p>Invert mapping:</p> 2651 * <pre><code>curveRed = [ (0, 1.0), (1.0, 0) ] 2652 * </code></pre> 2653 * <p><img alt="Inverting mapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/inverse_tonemap.png" /></p> 2654 * <p>Gamma 1/2.2 mapping, with 16 control points:</p> 2655 * <pre><code>curveRed = [ 2656 * (0.0000, 0.0000), (0.0667, 0.2920), (0.1333, 0.4002), (0.2000, 0.4812), 2657 * (0.2667, 0.5484), (0.3333, 0.6069), (0.4000, 0.6594), (0.4667, 0.7072), 2658 * (0.5333, 0.7515), (0.6000, 0.7928), (0.6667, 0.8317), (0.7333, 0.8685), 2659 * (0.8000, 0.9035), (0.8667, 0.9370), (0.9333, 0.9691), (1.0000, 1.0000) ] 2660 * </code></pre> 2661 * <p><img alt="Gamma = 1/2.2 tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/gamma_tonemap.png" /></p> 2662 * <p>Standard sRGB gamma mapping, per IEC 61966-2-1:1999, with 16 control points:</p> 2663 * <pre><code>curveRed = [ 2664 * (0.0000, 0.0000), (0.0667, 0.2864), (0.1333, 0.4007), (0.2000, 0.4845), 2665 * (0.2667, 0.5532), (0.3333, 0.6125), (0.4000, 0.6652), (0.4667, 0.7130), 2666 * (0.5333, 0.7569), (0.6000, 0.7977), (0.6667, 0.8360), (0.7333, 0.8721), 2667 * (0.8000, 0.9063), (0.8667, 0.9389), (0.9333, 0.9701), (1.0000, 1.0000) ] 2668 * </code></pre> 2669 * <p><img alt="sRGB tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p> 2670 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2671 * <p><b>Full capability</b> - 2672 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2673 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2674 * 2675 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2676 * @see CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS 2677 * @see CaptureRequest#TONEMAP_MODE 2678 */ 2679 @PublicKey 2680 @SyntheticKey 2681 public static final Key<android.hardware.camera2.params.TonemapCurve> TONEMAP_CURVE = 2682 new Key<android.hardware.camera2.params.TonemapCurve>("android.tonemap.curve", android.hardware.camera2.params.TonemapCurve.class); 2683 2684 /** 2685 * <p>High-level global contrast/gamma/tonemapping control.</p> 2686 * <p>When switching to an application-defined contrast curve by setting 2687 * {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} to CONTRAST_CURVE, the curve is defined 2688 * per-channel with a set of <code>(in, out)</code> points that specify the 2689 * mapping from input high-bit-depth pixel value to the output 2690 * low-bit-depth value. Since the actual pixel ranges of both input 2691 * and output may change depending on the camera pipeline, the values 2692 * are specified by normalized floating-point numbers.</p> 2693 * <p>More-complex color mapping operations such as 3D color look-up 2694 * tables, selective chroma enhancement, or other non-linear color 2695 * transforms will be disabled when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 2696 * CONTRAST_CURVE.</p> 2697 * <p>When using either FAST or HIGH_QUALITY, the camera device will 2698 * emit its own tonemap curve in {@link CaptureRequest#TONEMAP_CURVE android.tonemap.curve}. 2699 * These values are always available, and as close as possible to the 2700 * actually used nonlinear/nonglobal transforms.</p> 2701 * <p>If a request is sent with CONTRAST_CURVE with the camera device's 2702 * provided curve in FAST or HIGH_QUALITY, the image's tonemap will be 2703 * roughly the same.</p> 2704 * <p><b>Possible values:</b> 2705 * <ul> 2706 * <li>{@link #TONEMAP_MODE_CONTRAST_CURVE CONTRAST_CURVE}</li> 2707 * <li>{@link #TONEMAP_MODE_FAST FAST}</li> 2708 * <li>{@link #TONEMAP_MODE_HIGH_QUALITY HIGH_QUALITY}</li> 2709 * <li>{@link #TONEMAP_MODE_GAMMA_VALUE GAMMA_VALUE}</li> 2710 * <li>{@link #TONEMAP_MODE_PRESET_CURVE PRESET_CURVE}</li> 2711 * </ul></p> 2712 * <p><b>Available values for this device:</b><br> 2713 * {@link CameraCharacteristics#TONEMAP_AVAILABLE_TONE_MAP_MODES android.tonemap.availableToneMapModes}</p> 2714 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2715 * <p><b>Full capability</b> - 2716 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2717 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2718 * 2719 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2720 * @see CameraCharacteristics#TONEMAP_AVAILABLE_TONE_MAP_MODES 2721 * @see CaptureRequest#TONEMAP_CURVE 2722 * @see CaptureRequest#TONEMAP_MODE 2723 * @see #TONEMAP_MODE_CONTRAST_CURVE 2724 * @see #TONEMAP_MODE_FAST 2725 * @see #TONEMAP_MODE_HIGH_QUALITY 2726 * @see #TONEMAP_MODE_GAMMA_VALUE 2727 * @see #TONEMAP_MODE_PRESET_CURVE 2728 */ 2729 @PublicKey 2730 public static final Key<Integer> TONEMAP_MODE = 2731 new Key<Integer>("android.tonemap.mode", int.class); 2732 2733 /** 2734 * <p>Tonemapping curve to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 2735 * GAMMA_VALUE</p> 2736 * <p>The tonemap curve will be defined the following formula: 2737 * * OUT = pow(IN, 1.0 / gamma) 2738 * where IN and OUT is the input pixel value scaled to range [0.0, 1.0], 2739 * pow is the power function and gamma is the gamma value specified by this 2740 * key.</p> 2741 * <p>The same curve will be applied to all color channels. The camera device 2742 * may clip the input gamma value to its supported range. The actual applied 2743 * value will be returned in capture result.</p> 2744 * <p>The valid range of gamma value varies on different devices, but values 2745 * within [1.0, 5.0] are guaranteed not to be clipped.</p> 2746 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2747 * 2748 * @see CaptureRequest#TONEMAP_MODE 2749 */ 2750 @PublicKey 2751 public static final Key<Float> TONEMAP_GAMMA = 2752 new Key<Float>("android.tonemap.gamma", float.class); 2753 2754 /** 2755 * <p>Tonemapping curve to use when {@link CaptureRequest#TONEMAP_MODE android.tonemap.mode} is 2756 * PRESET_CURVE</p> 2757 * <p>The tonemap curve will be defined by specified standard.</p> 2758 * <p>sRGB (approximated by 16 control points):</p> 2759 * <p><img alt="sRGB tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p> 2760 * <p>Rec. 709 (approximated by 16 control points):</p> 2761 * <p><img alt="Rec. 709 tonemapping curve" src="../../../../images/camera2/metadata/android.tonemap.curveRed/rec709_tonemap.png" /></p> 2762 * <p>Note that above figures show a 16 control points approximation of preset 2763 * curves. Camera devices may apply a different approximation to the curve.</p> 2764 * <p><b>Possible values:</b> 2765 * <ul> 2766 * <li>{@link #TONEMAP_PRESET_CURVE_SRGB SRGB}</li> 2767 * <li>{@link #TONEMAP_PRESET_CURVE_REC709 REC709}</li> 2768 * </ul></p> 2769 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2770 * 2771 * @see CaptureRequest#TONEMAP_MODE 2772 * @see #TONEMAP_PRESET_CURVE_SRGB 2773 * @see #TONEMAP_PRESET_CURVE_REC709 2774 */ 2775 @PublicKey 2776 public static final Key<Integer> TONEMAP_PRESET_CURVE = 2777 new Key<Integer>("android.tonemap.presetCurve", int.class); 2778 2779 /** 2780 * <p>This LED is nominally used to indicate to the user 2781 * that the camera is powered on and may be streaming images back to the 2782 * Application Processor. In certain rare circumstances, the OS may 2783 * disable this when video is processed locally and not transmitted to 2784 * any untrusted applications.</p> 2785 * <p>In particular, the LED <em>must</em> always be on when the data could be 2786 * transmitted off the device. The LED <em>should</em> always be on whenever 2787 * data is stored locally on the device.</p> 2788 * <p>The LED <em>may</em> be off if a trusted application is using the data that 2789 * doesn't violate the above rules.</p> 2790 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2791 * @hide 2792 */ 2793 public static final Key<Boolean> LED_TRANSMIT = 2794 new Key<Boolean>("android.led.transmit", boolean.class); 2795 2796 /** 2797 * <p>Whether black-level compensation is locked 2798 * to its current values, or is free to vary.</p> 2799 * <p>When set to <code>true</code> (ON), the values used for black-level 2800 * compensation will not change until the lock is set to 2801 * <code>false</code> (OFF).</p> 2802 * <p>Since changes to certain capture parameters (such as 2803 * exposure time) may require resetting of black level 2804 * compensation, the camera device must report whether setting 2805 * the black level lock was successful in the output result 2806 * metadata.</p> 2807 * <p>For example, if a sequence of requests is as follows:</p> 2808 * <ul> 2809 * <li>Request 1: Exposure = 10ms, Black level lock = OFF</li> 2810 * <li>Request 2: Exposure = 10ms, Black level lock = ON</li> 2811 * <li>Request 3: Exposure = 10ms, Black level lock = ON</li> 2812 * <li>Request 4: Exposure = 20ms, Black level lock = ON</li> 2813 * <li>Request 5: Exposure = 20ms, Black level lock = ON</li> 2814 * <li>Request 6: Exposure = 20ms, Black level lock = ON</li> 2815 * </ul> 2816 * <p>And the exposure change in Request 4 requires the camera 2817 * device to reset the black level offsets, then the output 2818 * result metadata is expected to be:</p> 2819 * <ul> 2820 * <li>Result 1: Exposure = 10ms, Black level lock = OFF</li> 2821 * <li>Result 2: Exposure = 10ms, Black level lock = ON</li> 2822 * <li>Result 3: Exposure = 10ms, Black level lock = ON</li> 2823 * <li>Result 4: Exposure = 20ms, Black level lock = OFF</li> 2824 * <li>Result 5: Exposure = 20ms, Black level lock = ON</li> 2825 * <li>Result 6: Exposure = 20ms, Black level lock = ON</li> 2826 * </ul> 2827 * <p>This indicates to the application that on frame 4, black 2828 * levels were reset due to exposure value changes, and pixel 2829 * values may not be consistent across captures.</p> 2830 * <p>The camera device will maintain the lock to the extent 2831 * possible, only overriding the lock to OFF when changes to 2832 * other request parameters require a black level recalculation 2833 * or reset.</p> 2834 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2835 * <p><b>Full capability</b> - 2836 * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the 2837 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2838 * 2839 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2840 */ 2841 @PublicKey 2842 public static final Key<Boolean> BLACK_LEVEL_LOCK = 2843 new Key<Boolean>("android.blackLevel.lock", boolean.class); 2844 2845 /** 2846 * <p>The amount of exposure time increase factor applied to the original output 2847 * frame by the application processing before sending for reprocessing.</p> 2848 * <p>This is optional, and will be supported if the camera device supports YUV_REPROCESSING 2849 * capability ({@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} contains YUV_REPROCESSING).</p> 2850 * <p>For some YUV reprocessing use cases, the application may choose to filter the original 2851 * output frames to effectively reduce the noise to the same level as a frame that was 2852 * captured with longer exposure time. To be more specific, assuming the original captured 2853 * images were captured with a sensitivity of S and an exposure time of T, the model in 2854 * the camera device is that the amount of noise in the image would be approximately what 2855 * would be expected if the original capture parameters had been a sensitivity of 2856 * S/effectiveExposureFactor and an exposure time of T*effectiveExposureFactor, rather 2857 * than S and T respectively. If the captured images were processed by the application 2858 * before being sent for reprocessing, then the application may have used image processing 2859 * algorithms and/or multi-frame image fusion to reduce the noise in the 2860 * application-processed images (input images). By using the effectiveExposureFactor 2861 * control, the application can communicate to the camera device the actual noise level 2862 * improvement in the application-processed image. With this information, the camera 2863 * device can select appropriate noise reduction and edge enhancement parameters to avoid 2864 * excessive noise reduction ({@link CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode}) and insufficient edge 2865 * enhancement ({@link CaptureRequest#EDGE_MODE android.edge.mode}) being applied to the reprocessed frames.</p> 2866 * <p>For example, for multi-frame image fusion use case, the application may fuse 2867 * multiple output frames together to a final frame for reprocessing. When N image are 2868 * fused into 1 image for reprocessing, the exposure time increase factor could be up to 2869 * square root of N (based on a simple photon shot noise model). The camera device will 2870 * adjust the reprocessing noise reduction and edge enhancement parameters accordingly to 2871 * produce the best quality images.</p> 2872 * <p>This is relative factor, 1.0 indicates the application hasn't processed the input 2873 * buffer in a way that affects its effective exposure time.</p> 2874 * <p>This control is only effective for YUV reprocessing capture request. For noise 2875 * reduction reprocessing, it is only effective when <code>{@link CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode} != OFF</code>. 2876 * Similarly, for edge enhancement reprocessing, it is only effective when 2877 * <code>{@link CaptureRequest#EDGE_MODE android.edge.mode} != OFF</code>.</p> 2878 * <p><b>Units</b>: Relative exposure time increase factor.</p> 2879 * <p><b>Range of valid values:</b><br> 2880 * >= 1.0</p> 2881 * <p><b>Optional</b> - This value may be {@code null} on some devices.</p> 2882 * <p><b>Limited capability</b> - 2883 * Present on all camera devices that report being at least {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the 2884 * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> 2885 * 2886 * @see CaptureRequest#EDGE_MODE 2887 * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL 2888 * @see CaptureRequest#NOISE_REDUCTION_MODE 2889 * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES 2890 */ 2891 @PublicKey 2892 public static final Key<Float> REPROCESS_EFFECTIVE_EXPOSURE_FACTOR = 2893 new Key<Float>("android.reprocess.effectiveExposureFactor", float.class); 2894 2895 /*~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~ 2896 * End generated code 2897 *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~O@*/ 2898 2899 2900 2901} 2902