RequestThreadManager.java revision 2c3d7c5f68993531a4f5f91c1335cac8ca448e17
1/* 2 * Copyright (C) 2014 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.legacy; 18 19import android.graphics.SurfaceTexture; 20import android.hardware.Camera; 21import android.hardware.camera2.CameraCharacteristics; 22import android.hardware.camera2.CaptureRequest; 23import android.hardware.camera2.impl.CameraDeviceImpl; 24import android.hardware.camera2.utils.LongParcelable; 25import android.hardware.camera2.utils.SizeAreaComparator; 26import android.hardware.camera2.impl.CameraMetadataNative; 27import android.os.ConditionVariable; 28import android.os.Handler; 29import android.os.Message; 30import android.os.SystemClock; 31import android.util.Log; 32import android.util.MutableLong; 33import android.util.Pair; 34import android.util.Size; 35import android.view.Surface; 36 37import java.io.IOException; 38import java.util.ArrayList; 39import java.util.Collection; 40import java.util.Collections; 41import java.util.List; 42import java.util.concurrent.TimeUnit; 43 44import static com.android.internal.util.Preconditions.*; 45 46/** 47 * This class executes requests to the {@link Camera}. 48 * 49 * <p> 50 * The main components of this class are: 51 * - A message queue of requests to the {@link Camera}. 52 * - A thread that consumes requests to the {@link Camera} and executes them. 53 * - A {@link GLThreadManager} that draws to the configured output {@link Surface}s. 54 * - An {@link CameraDeviceState} state machine that manages the callbacks for various operations. 55 * </p> 56 */ 57@SuppressWarnings("deprecation") 58public class RequestThreadManager { 59 private final String TAG; 60 private final int mCameraId; 61 private final RequestHandlerThread mRequestThread; 62 63 private static final boolean DEBUG = Log.isLoggable(LegacyCameraDevice.DEBUG_PROP, Log.DEBUG); 64 // For slightly more spammy messages that will get repeated every frame 65 private static final boolean VERBOSE = 66 Log.isLoggable(LegacyCameraDevice.DEBUG_PROP, Log.VERBOSE); 67 private final Camera mCamera; 68 private final CameraCharacteristics mCharacteristics; 69 70 private final CameraDeviceState mDeviceState; 71 private final CaptureCollector mCaptureCollector; 72 private final LegacyFocusStateMapper mFocusStateMapper; 73 private final LegacyFaceDetectMapper mFaceDetectMapper; 74 75 private static final int MSG_CONFIGURE_OUTPUTS = 1; 76 private static final int MSG_SUBMIT_CAPTURE_REQUEST = 2; 77 private static final int MSG_CLEANUP = 3; 78 79 private static final int MAX_IN_FLIGHT_REQUESTS = 2; 80 81 private static final int PREVIEW_FRAME_TIMEOUT = 300; // ms 82 private static final int JPEG_FRAME_TIMEOUT = 3000; // ms (same as CTS for API2) 83 private static final int REQUEST_COMPLETE_TIMEOUT = 3000; // ms (same as JPEG timeout) 84 85 private static final float ASPECT_RATIO_TOLERANCE = 0.01f; 86 private boolean mPreviewRunning = false; 87 88 private final List<Surface> mPreviewOutputs = new ArrayList<>(); 89 private final List<Surface> mCallbackOutputs = new ArrayList<>(); 90 private GLThreadManager mGLThreadManager; 91 private SurfaceTexture mPreviewTexture; 92 private Camera.Parameters mParams; 93 94 private final List<Long> mJpegSurfaceIds = new ArrayList<>(); 95 96 private Size mIntermediateBufferSize; 97 98 private final RequestQueue mRequestQueue = new RequestQueue(mJpegSurfaceIds); 99 private LegacyRequest mLastRequest = null; 100 private SurfaceTexture mDummyTexture; 101 private Surface mDummySurface; 102 103 private final Object mIdleLock = new Object(); 104 private final FpsCounter mPrevCounter = new FpsCounter("Incoming Preview"); 105 private final FpsCounter mRequestCounter = new FpsCounter("Incoming Requests"); 106 107 // Stuff JPEGs into HAL_PIXEL_FORMAT_RGBA_8888 gralloc buffers to get around SW write 108 // limitations for (b/17379185). 109 private static final boolean USE_BLOB_FORMAT_OVERRIDE = true; 110 111 /** 112 * Container object for Configure messages. 113 */ 114 private static class ConfigureHolder { 115 public final ConditionVariable condition; 116 public final Collection<Surface> surfaces; 117 118 public ConfigureHolder(ConditionVariable condition, Collection<Surface> surfaces) { 119 this.condition = condition; 120 this.surfaces = surfaces; 121 } 122 } 123 124 /** 125 * Counter class used to calculate and log the current FPS of frame production. 126 */ 127 public static class FpsCounter { 128 //TODO: Hook this up to SystTrace? 129 private static final String TAG = "FpsCounter"; 130 private int mFrameCount = 0; 131 private long mLastTime = 0; 132 private long mLastPrintTime = 0; 133 private double mLastFps = 0; 134 private final String mStreamType; 135 private static final long NANO_PER_SECOND = 1000000000; //ns 136 137 public FpsCounter(String streamType) { 138 mStreamType = streamType; 139 } 140 141 public synchronized void countFrame() { 142 mFrameCount++; 143 long nextTime = SystemClock.elapsedRealtimeNanos(); 144 if (mLastTime == 0) { 145 mLastTime = nextTime; 146 } 147 if (nextTime > mLastTime + NANO_PER_SECOND) { 148 long elapsed = nextTime - mLastTime; 149 mLastFps = mFrameCount * (NANO_PER_SECOND / (double) elapsed); 150 mFrameCount = 0; 151 mLastTime = nextTime; 152 } 153 } 154 155 public synchronized double checkFps() { 156 return mLastFps; 157 } 158 159 public synchronized void staggeredLog() { 160 if (mLastTime > mLastPrintTime + 5 * NANO_PER_SECOND) { 161 mLastPrintTime = mLastTime; 162 Log.d(TAG, "FPS for " + mStreamType + " stream: " + mLastFps ); 163 } 164 } 165 166 public synchronized void countAndLog() { 167 countFrame(); 168 staggeredLog(); 169 } 170 } 171 /** 172 * Fake preview for jpeg captures when there is no active preview 173 */ 174 private void createDummySurface() { 175 if (mDummyTexture == null || mDummySurface == null) { 176 mDummyTexture = new SurfaceTexture(/*ignored*/0); 177 // TODO: use smallest default sizes 178 mDummyTexture.setDefaultBufferSize(640, 480); 179 mDummySurface = new Surface(mDummyTexture); 180 } 181 } 182 183 private final Camera.ErrorCallback mErrorCallback = new Camera.ErrorCallback() { 184 @Override 185 public void onError(int i, Camera camera) { 186 Log.e(TAG, "Received error " + i + " from the Camera1 ErrorCallback"); 187 mDeviceState.setError(CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 188 } 189 }; 190 191 private final ConditionVariable mReceivedJpeg = new ConditionVariable(false); 192 193 private final Camera.PictureCallback mJpegCallback = new Camera.PictureCallback() { 194 @Override 195 public void onPictureTaken(byte[] data, Camera camera) { 196 Log.i(TAG, "Received jpeg."); 197 Pair<RequestHolder, Long> captureInfo = mCaptureCollector.jpegProduced(); 198 if (captureInfo == null || captureInfo.first == null) { 199 Log.e(TAG, "Dropping jpeg frame."); 200 return; 201 } 202 RequestHolder holder = captureInfo.first; 203 long timestamp = captureInfo.second; 204 for (Surface s : holder.getHolderTargets()) { 205 try { 206 if (LegacyCameraDevice.containsSurfaceId(s, mJpegSurfaceIds)) { 207 Log.i(TAG, "Producing jpeg buffer..."); 208 209 int totalSize = data.length + LegacyCameraDevice.nativeGetJpegFooterSize(); 210 totalSize += ((totalSize - 1) & ~0x3) + 4; // align to next octonibble 211 212 LegacyCameraDevice.setSurfaceDimens(s, totalSize, /*height*/1); 213 LegacyCameraDevice.setNextTimestamp(s, timestamp); 214 LegacyCameraDevice.produceFrame(s, data, data.length, /*height*/1, 215 CameraMetadataNative.NATIVE_JPEG_FORMAT); 216 } 217 } catch (LegacyExceptionUtils.BufferQueueAbandonedException e) { 218 Log.w(TAG, "Surface abandoned, dropping frame. ", e); 219 } 220 } 221 222 mReceivedJpeg.open(); 223 } 224 }; 225 226 private final Camera.ShutterCallback mJpegShutterCallback = new Camera.ShutterCallback() { 227 @Override 228 public void onShutter() { 229 mCaptureCollector.jpegCaptured(SystemClock.elapsedRealtimeNanos()); 230 } 231 }; 232 233 private final SurfaceTexture.OnFrameAvailableListener mPreviewCallback = 234 new SurfaceTexture.OnFrameAvailableListener() { 235 @Override 236 public void onFrameAvailable(SurfaceTexture surfaceTexture) { 237 if (DEBUG) { 238 mPrevCounter.countAndLog(); 239 } 240 mGLThreadManager.queueNewFrame(); 241 } 242 }; 243 244 private void stopPreview() { 245 if (VERBOSE) { 246 Log.v(TAG, "stopPreview - preview running? " + mPreviewRunning); 247 } 248 if (mPreviewRunning) { 249 mCamera.stopPreview(); 250 mPreviewRunning = false; 251 } 252 } 253 254 private void startPreview() { 255 if (VERBOSE) { 256 Log.v(TAG, "startPreview - preview running? " + mPreviewRunning); 257 } 258 if (!mPreviewRunning) { 259 // XX: CameraClient:;startPreview is not getting called after a stop 260 mCamera.startPreview(); 261 mPreviewRunning = true; 262 } 263 } 264 265 private void doJpegCapturePrepare(RequestHolder request) throws IOException { 266 if (DEBUG) Log.d(TAG, "doJpegCapturePrepare - preview running? " + mPreviewRunning); 267 268 if (!mPreviewRunning) { 269 if (DEBUG) Log.d(TAG, "doJpegCapture - create fake surface"); 270 271 createDummySurface(); 272 mCamera.setPreviewTexture(mDummyTexture); 273 startPreview(); 274 } 275 } 276 277 private void doJpegCapture(RequestHolder request) { 278 if (DEBUG) Log.d(TAG, "doJpegCapturePrepare"); 279 280 mCamera.takePicture(mJpegShutterCallback, /*raw*/null, mJpegCallback); 281 mPreviewRunning = false; 282 } 283 284 private void doPreviewCapture(RequestHolder request) throws IOException { 285 if (VERBOSE) { 286 Log.v(TAG, "doPreviewCapture - preview running? " + mPreviewRunning); 287 } 288 289 if (mPreviewRunning) { 290 return; // Already running 291 } 292 293 if (mPreviewTexture == null) { 294 throw new IllegalStateException( 295 "Preview capture called with no preview surfaces configured."); 296 } 297 298 mPreviewTexture.setDefaultBufferSize(mIntermediateBufferSize.getWidth(), 299 mIntermediateBufferSize.getHeight()); 300 mCamera.setPreviewTexture(mPreviewTexture); 301 302 startPreview(); 303 } 304 305 private void configureOutputs(Collection<Surface> outputs) { 306 if (DEBUG) { 307 String outputsStr = outputs == null ? "null" : (outputs.size() + " surfaces"); 308 Log.d(TAG, "configureOutputs with " + outputsStr); 309 } 310 311 stopPreview(); 312 /* 313 * Try to release the previous preview's surface texture earlier if we end up 314 * using a different one; this also reduces the likelihood of getting into a deadlock 315 * when disconnecting from the old previous texture at a later time. 316 */ 317 try { 318 mCamera.setPreviewTexture(/*surfaceTexture*/null); 319 } catch (IOException e) { 320 Log.w(TAG, "Failed to clear prior SurfaceTexture, may cause GL deadlock: ", e); 321 } 322 323 if (mGLThreadManager != null) { 324 mGLThreadManager.waitUntilStarted(); 325 mGLThreadManager.ignoreNewFrames(); 326 mGLThreadManager.waitUntilIdle(); 327 } 328 resetJpegSurfaceFormats(mCallbackOutputs); 329 mPreviewOutputs.clear(); 330 mCallbackOutputs.clear(); 331 mPreviewTexture = null; 332 333 int facing = mCharacteristics.get(CameraCharacteristics.LENS_FACING); 334 int orientation = mCharacteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); 335 if (outputs != null) { 336 for (Surface s : outputs) { 337 try { 338 int format = LegacyCameraDevice.detectSurfaceType(s); 339 LegacyCameraDevice.setSurfaceOrientation(s, facing, orientation); 340 switch (format) { 341 case CameraMetadataNative.NATIVE_JPEG_FORMAT: 342 if (USE_BLOB_FORMAT_OVERRIDE) { 343 // Override to RGBA_8888 format. 344 LegacyCameraDevice.setSurfaceFormat(s, 345 LegacyMetadataMapper.HAL_PIXEL_FORMAT_RGBA_8888); 346 } 347 mJpegSurfaceIds.add(LegacyCameraDevice.getSurfaceId(s)); 348 mCallbackOutputs.add(s); 349 break; 350 default: 351 mPreviewOutputs.add(s); 352 break; 353 } 354 } catch (LegacyExceptionUtils.BufferQueueAbandonedException e) { 355 Log.w(TAG, "Surface abandoned, skipping...", e); 356 } 357 } 358 } 359 mParams = mCamera.getParameters(); 360 361 List<int[]> supportedFpsRanges = mParams.getSupportedPreviewFpsRange(); 362 int[] bestRange = getPhotoPreviewFpsRange(supportedFpsRanges); 363 if (DEBUG) { 364 Log.d(TAG, "doPreviewCapture - Selected range [" + 365 bestRange[Camera.Parameters.PREVIEW_FPS_MIN_INDEX] + "," + 366 bestRange[Camera.Parameters.PREVIEW_FPS_MAX_INDEX] + "]"); 367 } 368 mParams.setPreviewFpsRange(bestRange[Camera.Parameters.PREVIEW_FPS_MIN_INDEX], 369 bestRange[Camera.Parameters.PREVIEW_FPS_MAX_INDEX]); 370 371 if (mPreviewOutputs.size() > 0) { 372 List<Size> outputSizes = new ArrayList<>(outputs.size()); 373 for (Surface s : mPreviewOutputs) { 374 try { 375 Size size = LegacyCameraDevice.getSurfaceSize(s); 376 outputSizes.add(size); 377 } catch (LegacyExceptionUtils.BufferQueueAbandonedException e) { 378 Log.w(TAG, "Surface abandoned, skipping...", e); 379 } 380 } 381 382 Size largestOutput = SizeAreaComparator.findLargestByArea(outputSizes); 383 384 // Find largest jpeg dimension - assume to have the same aspect ratio as sensor. 385 Size largestJpegDimen = ParameterUtils.getLargestSupportedJpegSizeByArea(mParams); 386 387 List<Size> supportedPreviewSizes = ParameterUtils.convertSizeList( 388 mParams.getSupportedPreviewSizes()); 389 390 // Use smallest preview dimension with same aspect ratio as sensor that is >= than all 391 // of the configured output dimensions. If none exists, fall back to using the largest 392 // supported preview size. 393 long largestOutputArea = largestOutput.getHeight() * (long) largestOutput.getWidth(); 394 Size bestPreviewDimen = SizeAreaComparator.findLargestByArea(supportedPreviewSizes); 395 for (Size s : supportedPreviewSizes) { 396 long currArea = s.getWidth() * s.getHeight(); 397 long bestArea = bestPreviewDimen.getWidth() * bestPreviewDimen.getHeight(); 398 if (checkAspectRatiosMatch(largestJpegDimen, s) && (currArea < bestArea && 399 currArea >= largestOutputArea)) { 400 bestPreviewDimen = s; 401 } 402 } 403 404 mIntermediateBufferSize = bestPreviewDimen; 405 mParams.setPreviewSize(mIntermediateBufferSize.getWidth(), 406 mIntermediateBufferSize.getHeight()); 407 408 if (DEBUG) { 409 Log.d(TAG, "Intermediate buffer selected with dimens: " + 410 bestPreviewDimen.toString()); 411 } 412 } else { 413 mIntermediateBufferSize = null; 414 if (DEBUG) { 415 Log.d(TAG, "No Intermediate buffer selected, no preview outputs were configured"); 416 } 417 } 418 419 Size smallestSupportedJpegSize = calculatePictureSize(mCallbackOutputs, mParams); 420 if (smallestSupportedJpegSize != null) { 421 /* 422 * Set takePicture size to the smallest supported JPEG size large enough 423 * to scale/crop out of for the bounding rectangle of the configured JPEG sizes. 424 */ 425 426 Log.i(TAG, "configureOutputs - set take picture size to " + smallestSupportedJpegSize); 427 mParams.setPictureSize( 428 smallestSupportedJpegSize.getWidth(), smallestSupportedJpegSize.getHeight()); 429 } 430 431 // TODO: Detect and optimize single-output paths here to skip stream teeing. 432 if (mGLThreadManager == null) { 433 mGLThreadManager = new GLThreadManager(mCameraId, facing, mDeviceState); 434 mGLThreadManager.start(); 435 } 436 mGLThreadManager.waitUntilStarted(); 437 mGLThreadManager.setConfigurationAndWait(mPreviewOutputs, mCaptureCollector); 438 mGLThreadManager.allowNewFrames(); 439 mPreviewTexture = mGLThreadManager.getCurrentSurfaceTexture(); 440 if (mPreviewTexture != null) { 441 mPreviewTexture.setOnFrameAvailableListener(mPreviewCallback); 442 } 443 444 mCamera.setParameters(mParams); 445 } 446 447 private void resetJpegSurfaceFormats(Collection<Surface> surfaces) { 448 if (!USE_BLOB_FORMAT_OVERRIDE || surfaces == null) { 449 return; 450 } 451 for(Surface s : surfaces) { 452 try { 453 LegacyCameraDevice.setSurfaceFormat(s, LegacyMetadataMapper.HAL_PIXEL_FORMAT_BLOB); 454 } catch (LegacyExceptionUtils.BufferQueueAbandonedException e) { 455 Log.w(TAG, "Surface abandoned, skipping...", e); 456 } 457 } 458 } 459 460 /** 461 * Find a JPEG size (that is supported by the legacy camera device) which is equal to or larger 462 * than all of the configured {@code JPEG} outputs (by both width and height). 463 * 464 * <p>If multiple supported JPEG sizes are larger, select the smallest of them which 465 * still satisfies the above constraint.</p> 466 * 467 * <p>As a result, the returned size is guaranteed to be usable without needing 468 * to upscale any of the outputs. If only one {@code JPEG} surface is used, 469 * then no scaling/cropping is necessary between the taken picture and 470 * the {@code JPEG} output surface.</p> 471 * 472 * @param callbackOutputs a non-{@code null} list of {@code Surface}s with any image formats 473 * @param params api1 parameters (used for reading only) 474 * 475 * @return a size large enough to fit all of the configured {@code JPEG} outputs, or 476 * {@code null} if the {@code callbackOutputs} did not have any {@code JPEG} 477 * surfaces. 478 */ 479 private Size calculatePictureSize( 480 Collection<Surface> callbackOutputs, Camera.Parameters params) { 481 /* 482 * Find the largest JPEG size (if any), from the configured outputs: 483 * - the api1 picture size should be set to the smallest legal size that's at least as large 484 * as the largest configured JPEG size 485 */ 486 List<Size> configuredJpegSizes = new ArrayList<Size>(); 487 for (Surface callbackSurface : callbackOutputs) { 488 try { 489 490 if (!LegacyCameraDevice.containsSurfaceId(callbackSurface, mJpegSurfaceIds)) { 491 continue; // Ignore non-JPEG callback formats 492 } 493 494 Size jpegSize = LegacyCameraDevice.getSurfaceSize(callbackSurface); 495 configuredJpegSizes.add(jpegSize); 496 } catch (LegacyExceptionUtils.BufferQueueAbandonedException e) { 497 Log.w(TAG, "Surface abandoned, skipping...", e); 498 } 499 } 500 if (!configuredJpegSizes.isEmpty()) { 501 /* 502 * Find the largest configured JPEG width, and height, independently 503 * of the rest. 504 * 505 * The rest of the JPEG streams can be cropped out of this smallest bounding 506 * rectangle. 507 */ 508 int maxConfiguredJpegWidth = -1; 509 int maxConfiguredJpegHeight = -1; 510 for (Size jpegSize : configuredJpegSizes) { 511 maxConfiguredJpegWidth = jpegSize.getWidth() > maxConfiguredJpegWidth ? 512 jpegSize.getWidth() : maxConfiguredJpegWidth; 513 maxConfiguredJpegHeight = jpegSize.getHeight() > maxConfiguredJpegHeight ? 514 jpegSize.getHeight() : maxConfiguredJpegHeight; 515 } 516 Size smallestBoundJpegSize = new Size(maxConfiguredJpegWidth, maxConfiguredJpegHeight); 517 518 List<Size> supportedJpegSizes = ParameterUtils.convertSizeList( 519 params.getSupportedPictureSizes()); 520 521 /* 522 * Find the smallest supported JPEG size that can fit the smallest bounding 523 * rectangle for the configured JPEG sizes. 524 */ 525 List<Size> candidateSupportedJpegSizes = new ArrayList<>(); 526 for (Size supportedJpegSize : supportedJpegSizes) { 527 if (supportedJpegSize.getWidth() >= maxConfiguredJpegWidth && 528 supportedJpegSize.getHeight() >= maxConfiguredJpegHeight) { 529 candidateSupportedJpegSizes.add(supportedJpegSize); 530 } 531 } 532 533 if (candidateSupportedJpegSizes.isEmpty()) { 534 throw new AssertionError( 535 "Could not find any supported JPEG sizes large enough to fit " + 536 smallestBoundJpegSize); 537 } 538 539 Size smallestSupportedJpegSize = Collections.min(candidateSupportedJpegSizes, 540 new SizeAreaComparator()); 541 542 if (!smallestSupportedJpegSize.equals(smallestBoundJpegSize)) { 543 Log.w(TAG, 544 String.format( 545 "configureOutputs - Will need to crop picture %s into " 546 + "smallest bound size %s", 547 smallestSupportedJpegSize, smallestBoundJpegSize)); 548 } 549 550 return smallestSupportedJpegSize; 551 } 552 553 return null; 554 } 555 556 private static boolean checkAspectRatiosMatch(Size a, Size b) { 557 float aAspect = a.getWidth() / (float) a.getHeight(); 558 float bAspect = b.getWidth() / (float) b.getHeight(); 559 560 return Math.abs(aAspect - bAspect) < ASPECT_RATIO_TOLERANCE; 561 } 562 563 // Calculate the highest FPS range supported 564 private int[] getPhotoPreviewFpsRange(List<int[]> frameRates) { 565 if (frameRates.size() == 0) { 566 Log.e(TAG, "No supported frame rates returned!"); 567 return null; 568 } 569 570 int bestMin = 0; 571 int bestMax = 0; 572 int bestIndex = 0; 573 int index = 0; 574 for (int[] rate : frameRates) { 575 int minFps = rate[Camera.Parameters.PREVIEW_FPS_MIN_INDEX]; 576 int maxFps = rate[Camera.Parameters.PREVIEW_FPS_MAX_INDEX]; 577 if (maxFps > bestMax || (maxFps == bestMax && minFps > bestMin)) { 578 bestMin = minFps; 579 bestMax = maxFps; 580 bestIndex = index; 581 } 582 index++; 583 } 584 585 return frameRates.get(bestIndex); 586 } 587 588 private final Handler.Callback mRequestHandlerCb = new Handler.Callback() { 589 private boolean mCleanup = false; 590 private final LegacyResultMapper mMapper = new LegacyResultMapper(); 591 592 @Override 593 public boolean handleMessage(Message msg) { 594 if (mCleanup) { 595 return true; 596 } 597 598 if (DEBUG) { 599 Log.d(TAG, "Request thread handling message:" + msg.what); 600 } 601 long startTime = 0; 602 if (DEBUG) { 603 startTime = SystemClock.elapsedRealtimeNanos(); 604 } 605 switch (msg.what) { 606 case MSG_CONFIGURE_OUTPUTS: 607 ConfigureHolder config = (ConfigureHolder) msg.obj; 608 int sizes = config.surfaces != null ? config.surfaces.size() : 0; 609 Log.i(TAG, "Configure outputs: " + sizes + " surfaces configured."); 610 611 try { 612 boolean success = mCaptureCollector.waitForEmpty(JPEG_FRAME_TIMEOUT, 613 TimeUnit.MILLISECONDS); 614 if (!success) { 615 Log.e(TAG, "Timed out while queueing configure request."); 616 mCaptureCollector.failAll(); 617 } 618 } catch (InterruptedException e) { 619 Log.e(TAG, "Interrupted while waiting for requests to complete."); 620 mDeviceState.setError( 621 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 622 break; 623 } 624 625 configureOutputs(config.surfaces); 626 config.condition.open(); 627 if (DEBUG) { 628 long totalTime = SystemClock.elapsedRealtimeNanos() - startTime; 629 Log.d(TAG, "Configure took " + totalTime + " ns"); 630 } 631 break; 632 case MSG_SUBMIT_CAPTURE_REQUEST: 633 Handler handler = RequestThreadManager.this.mRequestThread.getHandler(); 634 635 // Get the next burst from the request queue. 636 Pair<BurstHolder, Long> nextBurst = mRequestQueue.getNext(); 637 638 if (nextBurst == null) { 639 // If there are no further requests queued, wait for any currently executing 640 // requests to complete, then switch to idle state. 641 try { 642 boolean success = mCaptureCollector.waitForEmpty(JPEG_FRAME_TIMEOUT, 643 TimeUnit.MILLISECONDS); 644 if (!success) { 645 Log.e(TAG, 646 "Timed out while waiting for prior requests to complete."); 647 mCaptureCollector.failAll(); 648 } 649 } catch (InterruptedException e) { 650 Log.e(TAG, "Interrupted while waiting for requests to complete: ", e); 651 mDeviceState.setError( 652 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 653 break; 654 } 655 656 synchronized (mIdleLock) { 657 // Retry the the request queue. 658 nextBurst = mRequestQueue.getNext(); 659 660 // If we still have no queued requests, go idle. 661 if (nextBurst == null) { 662 mDeviceState.setIdle(); 663 break; 664 } 665 } 666 } 667 668 if (nextBurst != null) { 669 // Queue another capture if we did not get the last burst. 670 handler.sendEmptyMessage(MSG_SUBMIT_CAPTURE_REQUEST); 671 } 672 673 // Complete each request in the burst 674 List<RequestHolder> requests = 675 nextBurst.first.produceRequestHolders(nextBurst.second); 676 for (RequestHolder holder : requests) { 677 CaptureRequest request = holder.getRequest(); 678 679 boolean paramsChanged = false; 680 681 // Only update parameters if the request has changed 682 if (mLastRequest == null || mLastRequest.captureRequest != request) { 683 684 // The intermediate buffer is sometimes null, but we always need 685 // the Camera1 API configured preview size 686 Size previewSize = ParameterUtils.convertSize(mParams.getPreviewSize()); 687 688 LegacyRequest legacyRequest = new LegacyRequest(mCharacteristics, 689 request, previewSize, mParams); // params are copied 690 691 692 // Parameters are mutated as a side-effect 693 LegacyMetadataMapper.convertRequestMetadata(/*inout*/legacyRequest); 694 695 // If the parameters have changed, set them in the Camera1 API. 696 if (!mParams.same(legacyRequest.parameters)) { 697 try { 698 mCamera.setParameters(legacyRequest.parameters); 699 } catch (RuntimeException e) { 700 // If setting the parameters failed, report a request error to 701 // the camera client, and skip any further work for this request 702 Log.e(TAG, "Exception while setting camera parameters: ", e); 703 holder.failRequest(); 704 mDeviceState.setCaptureStart(holder, /*timestamp*/0, 705 CameraDeviceImpl.CameraDeviceCallbacks. 706 ERROR_CAMERA_REQUEST); 707 continue; 708 } 709 paramsChanged = true; 710 mParams = legacyRequest.parameters; 711 } 712 713 mLastRequest = legacyRequest; 714 } 715 716 try { 717 boolean success = mCaptureCollector.queueRequest(holder, 718 mLastRequest, JPEG_FRAME_TIMEOUT, TimeUnit.MILLISECONDS); 719 720 if (!success) { 721 // Report a request error if we timed out while queuing this. 722 Log.e(TAG, "Timed out while queueing capture request."); 723 holder.failRequest(); 724 mDeviceState.setCaptureStart(holder, /*timestamp*/0, 725 CameraDeviceImpl.CameraDeviceCallbacks. 726 ERROR_CAMERA_REQUEST); 727 continue; 728 } 729 730 // Starting the preview needs to happen before enabling 731 // face detection or auto focus 732 if (holder.hasPreviewTargets()) { 733 doPreviewCapture(holder); 734 } 735 if (holder.hasJpegTargets()) { 736 while(!mCaptureCollector.waitForPreviewsEmpty(PREVIEW_FRAME_TIMEOUT, 737 TimeUnit.MILLISECONDS)) { 738 // Fail preview requests until the queue is empty. 739 Log.e(TAG, "Timed out while waiting for preview requests to " + 740 "complete."); 741 mCaptureCollector.failNextPreview(); 742 } 743 mReceivedJpeg.close(); 744 doJpegCapturePrepare(holder); 745 } 746 747 /* 748 * Do all the actions that require a preview to have been started 749 */ 750 751 // Toggle face detection on/off 752 // - do this before AF to give AF a chance to use faces 753 mFaceDetectMapper.processFaceDetectMode(request, /*in*/mParams); 754 755 // Unconditionally process AF triggers, since they're non-idempotent 756 // - must be done after setting the most-up-to-date AF mode 757 mFocusStateMapper.processRequestTriggers(request, mParams); 758 759 if (holder.hasJpegTargets()) { 760 doJpegCapture(holder); 761 if (!mReceivedJpeg.block(JPEG_FRAME_TIMEOUT)) { 762 Log.e(TAG, "Hit timeout for jpeg callback!"); 763 mCaptureCollector.failNextJpeg(); 764 } 765 } 766 767 } catch (IOException e) { 768 Log.e(TAG, "Received device exception: ", e); 769 mDeviceState.setError( 770 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 771 break; 772 } catch (InterruptedException e) { 773 Log.e(TAG, "Interrupted during capture: ", e); 774 mDeviceState.setError( 775 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 776 break; 777 } 778 779 if (paramsChanged) { 780 if (DEBUG) { 781 Log.d(TAG, "Params changed -- getting new Parameters from HAL."); 782 } 783 mParams = mCamera.getParameters(); 784 785 // Update parameters to the latest that we think the camera is using 786 mLastRequest.setParameters(mParams); 787 } 788 789 MutableLong timestampMutable = new MutableLong(/*value*/0L); 790 try { 791 boolean success = mCaptureCollector.waitForRequestCompleted(holder, 792 REQUEST_COMPLETE_TIMEOUT, TimeUnit.MILLISECONDS, 793 /*out*/timestampMutable); 794 795 if (!success) { 796 Log.e(TAG, "Timed out while waiting for request to complete."); 797 mCaptureCollector.failAll(); 798 } 799 } catch (InterruptedException e) { 800 Log.e(TAG, "Interrupted waiting for request completion: ", e); 801 mDeviceState.setError( 802 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 803 break; 804 } 805 806 CameraMetadataNative result = mMapper.cachedConvertResultMetadata( 807 mLastRequest, timestampMutable.value); 808 /* 809 * Order matters: The default result mapper is state-less; the 810 * other mappers carry state and may override keys set by the default 811 * mapper with their own values. 812 */ 813 814 // Update AF state 815 mFocusStateMapper.mapResultTriggers(result); 816 // Update face-related results 817 mFaceDetectMapper.mapResultFaces(result, mLastRequest); 818 819 if (!holder.requestFailed()) { 820 mDeviceState.setCaptureResult(holder, result, 821 CameraDeviceState.NO_CAPTURE_ERROR); 822 } 823 } 824 if (DEBUG) { 825 long totalTime = SystemClock.elapsedRealtimeNanos() - startTime; 826 Log.d(TAG, "Capture request took " + totalTime + " ns"); 827 mRequestCounter.countAndLog(); 828 } 829 break; 830 case MSG_CLEANUP: 831 mCleanup = true; 832 try { 833 boolean success = mCaptureCollector.waitForEmpty(JPEG_FRAME_TIMEOUT, 834 TimeUnit.MILLISECONDS); 835 if (!success) { 836 Log.e(TAG, "Timed out while queueing cleanup request."); 837 mCaptureCollector.failAll(); 838 } 839 } catch (InterruptedException e) { 840 Log.e(TAG, "Interrupted while waiting for requests to complete: ", e); 841 mDeviceState.setError( 842 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 843 } 844 if (mGLThreadManager != null) { 845 mGLThreadManager.quit(); 846 } 847 if (mCamera != null) { 848 mCamera.release(); 849 } 850 resetJpegSurfaceFormats(mCallbackOutputs); 851 break; 852 default: 853 throw new AssertionError("Unhandled message " + msg.what + 854 " on RequestThread."); 855 } 856 return true; 857 } 858 }; 859 860 /** 861 * Create a new RequestThreadManager. 862 * 863 * @param cameraId the id of the camera to use. 864 * @param camera an open camera object. The RequestThreadManager takes ownership of this camera 865 * object, and is responsible for closing it. 866 * @param characteristics the static camera characteristics corresponding to this camera device 867 * @param deviceState a {@link CameraDeviceState} state machine. 868 */ 869 public RequestThreadManager(int cameraId, Camera camera, CameraCharacteristics characteristics, 870 CameraDeviceState deviceState) { 871 mCamera = checkNotNull(camera, "camera must not be null"); 872 mCameraId = cameraId; 873 mCharacteristics = checkNotNull(characteristics, "characteristics must not be null"); 874 String name = String.format("RequestThread-%d", cameraId); 875 TAG = name; 876 mDeviceState = checkNotNull(deviceState, "deviceState must not be null"); 877 mFocusStateMapper = new LegacyFocusStateMapper(mCamera); 878 mFaceDetectMapper = new LegacyFaceDetectMapper(mCamera, mCharacteristics); 879 mCaptureCollector = new CaptureCollector(MAX_IN_FLIGHT_REQUESTS, mDeviceState); 880 mRequestThread = new RequestHandlerThread(name, mRequestHandlerCb); 881 mCamera.setErrorCallback(mErrorCallback); 882 } 883 884 /** 885 * Start the request thread. 886 */ 887 public void start() { 888 mRequestThread.start(); 889 } 890 891 /** 892 * Flush any pending requests. 893 * 894 * @return the last frame number. 895 */ 896 public long flush() { 897 Log.i(TAG, "Flushing all pending requests."); 898 long lastFrame = mRequestQueue.stopRepeating(); 899 mCaptureCollector.failAll(); 900 return lastFrame; 901 } 902 903 /** 904 * Quit the request thread, and clean up everything. 905 */ 906 public void quit() { 907 Handler handler = mRequestThread.waitAndGetHandler(); 908 handler.sendMessageAtFrontOfQueue(handler.obtainMessage(MSG_CLEANUP)); 909 mRequestThread.quitSafely(); 910 try { 911 mRequestThread.join(); 912 } catch (InterruptedException e) { 913 Log.e(TAG, String.format("Thread %s (%d) interrupted while quitting.", 914 mRequestThread.getName(), mRequestThread.getId())); 915 } 916 } 917 918 /** 919 * Submit the given burst of requests to be captured. 920 * 921 * <p>If the burst is repeating, replace the current repeating burst.</p> 922 * 923 * @param requests the burst of requests to add to the queue. 924 * @param repeating true if the burst is repeating. 925 * @param frameNumber an output argument that contains either the frame number of the last frame 926 * that will be returned for this request, or the frame number of the last 927 * frame that will be returned for the current repeating request if this 928 * burst is set to be repeating. 929 * @return the request id. 930 */ 931 public int submitCaptureRequests(List<CaptureRequest> requests, boolean repeating, 932 /*out*/LongParcelable frameNumber) { 933 Handler handler = mRequestThread.waitAndGetHandler(); 934 int ret; 935 synchronized (mIdleLock) { 936 ret = mRequestQueue.submit(requests, repeating, frameNumber); 937 handler.sendEmptyMessage(MSG_SUBMIT_CAPTURE_REQUEST); 938 } 939 return ret; 940 } 941 942 /** 943 * Cancel a repeating request. 944 * 945 * @param requestId the id of the repeating request to cancel. 946 * @return the last frame to be returned from the HAL for the given repeating request, or 947 * {@code INVALID_FRAME} if none exists. 948 */ 949 public long cancelRepeating(int requestId) { 950 return mRequestQueue.stopRepeating(requestId); 951 } 952 953 /** 954 * Configure with the current list of output Surfaces. 955 * 956 * <p> 957 * This operation blocks until the configuration is complete. 958 * </p> 959 * 960 * <p>Using a {@code null} or empty {@code outputs} list is the equivalent of unconfiguring.</p> 961 * 962 * @param outputs a {@link java.util.Collection} of outputs to configure. 963 */ 964 public void configure(Collection<Surface> outputs) { 965 Handler handler = mRequestThread.waitAndGetHandler(); 966 final ConditionVariable condition = new ConditionVariable(/*closed*/false); 967 ConfigureHolder holder = new ConfigureHolder(condition, outputs); 968 handler.sendMessage(handler.obtainMessage(MSG_CONFIGURE_OUTPUTS, 0, 0, holder)); 969 condition.block(); 970 } 971} 972