RequestThreadManager.java revision c2b409267e1d9b99d4357d566291fcb9a2e88464
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.Iterator; 42import java.util.List; 43import java.util.concurrent.TimeUnit; 44import java.util.concurrent.atomic.AtomicBoolean; 45 46import static com.android.internal.util.Preconditions.*; 47 48/** 49 * This class executes requests to the {@link Camera}. 50 * 51 * <p> 52 * The main components of this class are: 53 * - A message queue of requests to the {@link Camera}. 54 * - A thread that consumes requests to the {@link Camera} and executes them. 55 * - A {@link GLThreadManager} that draws to the configured output {@link Surface}s. 56 * - An {@link CameraDeviceState} state machine that manages the callbacks for various operations. 57 * </p> 58 */ 59@SuppressWarnings("deprecation") 60public class RequestThreadManager { 61 private final String TAG; 62 private final int mCameraId; 63 private final RequestHandlerThread mRequestThread; 64 65 private static final boolean DEBUG = false; 66 // For slightly more spammy messages that will get repeated every frame 67 private static final boolean VERBOSE = false; 68 private Camera mCamera; 69 private final CameraCharacteristics mCharacteristics; 70 71 private final CameraDeviceState mDeviceState; 72 private final CaptureCollector mCaptureCollector; 73 private final LegacyFocusStateMapper mFocusStateMapper; 74 private final LegacyFaceDetectMapper mFaceDetectMapper; 75 76 private static final int MSG_CONFIGURE_OUTPUTS = 1; 77 private static final int MSG_SUBMIT_CAPTURE_REQUEST = 2; 78 private static final int MSG_CLEANUP = 3; 79 80 private static final int MAX_IN_FLIGHT_REQUESTS = 2; 81 82 private static final int PREVIEW_FRAME_TIMEOUT = 1000; // ms 83 private static final int JPEG_FRAME_TIMEOUT = 4000; // ms (same as CTS for API2) 84 private static final int REQUEST_COMPLETE_TIMEOUT = JPEG_FRAME_TIMEOUT; 85 86 private static final float ASPECT_RATIO_TOLERANCE = 0.01f; 87 private boolean mPreviewRunning = false; 88 89 private final List<Surface> mPreviewOutputs = new ArrayList<>(); 90 private final List<Surface> mCallbackOutputs = new ArrayList<>(); 91 private GLThreadManager mGLThreadManager; 92 private SurfaceTexture mPreviewTexture; 93 private Camera.Parameters mParams; 94 95 private final List<Long> mJpegSurfaceIds = new ArrayList<>(); 96 97 private Size mIntermediateBufferSize; 98 99 private final RequestQueue mRequestQueue = new RequestQueue(mJpegSurfaceIds); 100 private LegacyRequest mLastRequest = null; 101 private SurfaceTexture mDummyTexture; 102 private Surface mDummySurface; 103 104 private final Object mIdleLock = new Object(); 105 private final FpsCounter mPrevCounter = new FpsCounter("Incoming Preview"); 106 private final FpsCounter mRequestCounter = new FpsCounter("Incoming Requests"); 107 108 private final AtomicBoolean mQuit = new AtomicBoolean(false); 109 110 // Stuff JPEGs into HAL_PIXEL_FORMAT_RGBA_8888 gralloc buffers to get around SW write 111 // limitations for (b/17379185). 112 private static final boolean USE_BLOB_FORMAT_OVERRIDE = true; 113 114 /** 115 * Container object for Configure messages. 116 */ 117 private static class ConfigureHolder { 118 public final ConditionVariable condition; 119 public final Collection<Pair<Surface, Size>> surfaces; 120 121 public ConfigureHolder(ConditionVariable condition, Collection<Pair<Surface, 122 Size>> surfaces) { 123 this.condition = condition; 124 this.surfaces = surfaces; 125 } 126 } 127 128 /** 129 * Counter class used to calculate and log the current FPS of frame production. 130 */ 131 public static class FpsCounter { 132 //TODO: Hook this up to SystTrace? 133 private static final String TAG = "FpsCounter"; 134 private int mFrameCount = 0; 135 private long mLastTime = 0; 136 private long mLastPrintTime = 0; 137 private double mLastFps = 0; 138 private final String mStreamType; 139 private static final long NANO_PER_SECOND = 1000000000; //ns 140 141 public FpsCounter(String streamType) { 142 mStreamType = streamType; 143 } 144 145 public synchronized void countFrame() { 146 mFrameCount++; 147 long nextTime = SystemClock.elapsedRealtimeNanos(); 148 if (mLastTime == 0) { 149 mLastTime = nextTime; 150 } 151 if (nextTime > mLastTime + NANO_PER_SECOND) { 152 long elapsed = nextTime - mLastTime; 153 mLastFps = mFrameCount * (NANO_PER_SECOND / (double) elapsed); 154 mFrameCount = 0; 155 mLastTime = nextTime; 156 } 157 } 158 159 public synchronized double checkFps() { 160 return mLastFps; 161 } 162 163 public synchronized void staggeredLog() { 164 if (mLastTime > mLastPrintTime + 5 * NANO_PER_SECOND) { 165 mLastPrintTime = mLastTime; 166 Log.d(TAG, "FPS for " + mStreamType + " stream: " + mLastFps ); 167 } 168 } 169 170 public synchronized void countAndLog() { 171 countFrame(); 172 staggeredLog(); 173 } 174 } 175 /** 176 * Fake preview for jpeg captures when there is no active preview 177 */ 178 private void createDummySurface() { 179 if (mDummyTexture == null || mDummySurface == null) { 180 mDummyTexture = new SurfaceTexture(/*ignored*/0); 181 // TODO: use smallest default sizes 182 mDummyTexture.setDefaultBufferSize(640, 480); 183 mDummySurface = new Surface(mDummyTexture); 184 } 185 } 186 187 private final Camera.ErrorCallback mErrorCallback = new Camera.ErrorCallback() { 188 @Override 189 public void onError(int i, Camera camera) { 190 Log.e(TAG, "Received error " + i + " from the Camera1 ErrorCallback"); 191 mDeviceState.setError(CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 192 } 193 }; 194 195 private final ConditionVariable mReceivedJpeg = new ConditionVariable(false); 196 197 private final Camera.PictureCallback mJpegCallback = new Camera.PictureCallback() { 198 @Override 199 public void onPictureTaken(byte[] data, Camera camera) { 200 Log.i(TAG, "Received jpeg."); 201 Pair<RequestHolder, Long> captureInfo = mCaptureCollector.jpegProduced(); 202 if (captureInfo == null || captureInfo.first == null) { 203 Log.e(TAG, "Dropping jpeg frame."); 204 return; 205 } 206 RequestHolder holder = captureInfo.first; 207 long timestamp = captureInfo.second; 208 for (Surface s : holder.getHolderTargets()) { 209 try { 210 if (LegacyCameraDevice.containsSurfaceId(s, mJpegSurfaceIds)) { 211 Log.i(TAG, "Producing jpeg buffer..."); 212 213 int totalSize = data.length + LegacyCameraDevice.nativeGetJpegFooterSize(); 214 totalSize = (totalSize + 3) & ~0x3; // round up to nearest octonibble 215 LegacyCameraDevice.setNextTimestamp(s, timestamp); 216 217 if (USE_BLOB_FORMAT_OVERRIDE) { 218 // Override to RGBA_8888 format. 219 LegacyCameraDevice.setSurfaceFormat(s, 220 LegacyMetadataMapper.HAL_PIXEL_FORMAT_RGBA_8888); 221 222 int dimen = (int) Math.ceil(Math.sqrt(totalSize)); 223 dimen = (dimen + 0xf) & ~0xf; // round up to nearest multiple of 16 224 LegacyCameraDevice.setSurfaceDimens(s, dimen, dimen); 225 LegacyCameraDevice.produceFrame(s, data, dimen, dimen, 226 CameraMetadataNative.NATIVE_JPEG_FORMAT); 227 } else { 228 LegacyCameraDevice.setSurfaceDimens(s, totalSize, /*height*/1); 229 LegacyCameraDevice.produceFrame(s, data, totalSize, /*height*/1, 230 CameraMetadataNative.NATIVE_JPEG_FORMAT); 231 } 232 } 233 } catch (LegacyExceptionUtils.BufferQueueAbandonedException e) { 234 Log.w(TAG, "Surface abandoned, dropping frame. ", e); 235 } 236 } 237 238 mReceivedJpeg.open(); 239 } 240 }; 241 242 private final Camera.ShutterCallback mJpegShutterCallback = new Camera.ShutterCallback() { 243 @Override 244 public void onShutter() { 245 mCaptureCollector.jpegCaptured(SystemClock.elapsedRealtimeNanos()); 246 } 247 }; 248 249 private final SurfaceTexture.OnFrameAvailableListener mPreviewCallback = 250 new SurfaceTexture.OnFrameAvailableListener() { 251 @Override 252 public void onFrameAvailable(SurfaceTexture surfaceTexture) { 253 if (DEBUG) { 254 mPrevCounter.countAndLog(); 255 } 256 mGLThreadManager.queueNewFrame(); 257 } 258 }; 259 260 private void stopPreview() { 261 if (VERBOSE) { 262 Log.v(TAG, "stopPreview - preview running? " + mPreviewRunning); 263 } 264 if (mPreviewRunning) { 265 mCamera.stopPreview(); 266 mPreviewRunning = false; 267 } 268 } 269 270 private void startPreview() { 271 if (VERBOSE) { 272 Log.v(TAG, "startPreview - preview running? " + mPreviewRunning); 273 } 274 if (!mPreviewRunning) { 275 // XX: CameraClient:;startPreview is not getting called after a stop 276 mCamera.startPreview(); 277 mPreviewRunning = true; 278 } 279 } 280 281 private void doJpegCapturePrepare(RequestHolder request) throws IOException { 282 if (DEBUG) Log.d(TAG, "doJpegCapturePrepare - preview running? " + mPreviewRunning); 283 284 if (!mPreviewRunning) { 285 if (DEBUG) Log.d(TAG, "doJpegCapture - create fake surface"); 286 287 createDummySurface(); 288 mCamera.setPreviewTexture(mDummyTexture); 289 startPreview(); 290 } 291 } 292 293 private void doJpegCapture(RequestHolder request) { 294 if (DEBUG) Log.d(TAG, "doJpegCapturePrepare"); 295 296 mCamera.takePicture(mJpegShutterCallback, /*raw*/null, mJpegCallback); 297 mPreviewRunning = false; 298 } 299 300 private void doPreviewCapture(RequestHolder request) throws IOException { 301 if (VERBOSE) { 302 Log.v(TAG, "doPreviewCapture - preview running? " + mPreviewRunning); 303 } 304 305 if (mPreviewRunning) { 306 return; // Already running 307 } 308 309 if (mPreviewTexture == null) { 310 throw new IllegalStateException( 311 "Preview capture called with no preview surfaces configured."); 312 } 313 314 mPreviewTexture.setDefaultBufferSize(mIntermediateBufferSize.getWidth(), 315 mIntermediateBufferSize.getHeight()); 316 mCamera.setPreviewTexture(mPreviewTexture); 317 318 startPreview(); 319 } 320 321 private void configureOutputs(Collection<Pair<Surface, Size>> outputs) { 322 if (DEBUG) { 323 String outputsStr = outputs == null ? "null" : (outputs.size() + " surfaces"); 324 Log.d(TAG, "configureOutputs with " + outputsStr); 325 } 326 327 try { 328 stopPreview(); 329 } catch (RuntimeException e) { 330 Log.e(TAG, "Received device exception in configure call: ", e); 331 mDeviceState.setError( 332 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 333 return; 334 } 335 336 /* 337 * Try to release the previous preview's surface texture earlier if we end up 338 * using a different one; this also reduces the likelihood of getting into a deadlock 339 * when disconnecting from the old previous texture at a later time. 340 */ 341 try { 342 mCamera.setPreviewTexture(/*surfaceTexture*/null); 343 } catch (IOException e) { 344 Log.w(TAG, "Failed to clear prior SurfaceTexture, may cause GL deadlock: ", e); 345 } catch (RuntimeException e) { 346 Log.e(TAG, "Received device exception in configure call: ", e); 347 mDeviceState.setError( 348 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 349 return; 350 } 351 352 if (mGLThreadManager != null) { 353 mGLThreadManager.waitUntilStarted(); 354 mGLThreadManager.ignoreNewFrames(); 355 mGLThreadManager.waitUntilIdle(); 356 } 357 resetJpegSurfaceFormats(mCallbackOutputs); 358 mPreviewOutputs.clear(); 359 mCallbackOutputs.clear(); 360 mJpegSurfaceIds.clear(); 361 mPreviewTexture = null; 362 363 List<Size> previewOutputSizes = new ArrayList<>(); 364 List<Size> callbackOutputSizes = new ArrayList<>(); 365 366 int facing = mCharacteristics.get(CameraCharacteristics.LENS_FACING); 367 int orientation = mCharacteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); 368 if (outputs != null) { 369 for (Pair<Surface, Size> outPair : outputs) { 370 Surface s = outPair.first; 371 Size outSize = outPair.second; 372 try { 373 int format = LegacyCameraDevice.detectSurfaceType(s); 374 LegacyCameraDevice.setSurfaceOrientation(s, facing, orientation); 375 switch (format) { 376 case CameraMetadataNative.NATIVE_JPEG_FORMAT: 377 if (USE_BLOB_FORMAT_OVERRIDE) { 378 // Override to RGBA_8888 format. 379 LegacyCameraDevice.setSurfaceFormat(s, 380 LegacyMetadataMapper.HAL_PIXEL_FORMAT_RGBA_8888); 381 } 382 mJpegSurfaceIds.add(LegacyCameraDevice.getSurfaceId(s)); 383 mCallbackOutputs.add(s); 384 callbackOutputSizes.add(outSize); 385 break; 386 default: 387 mPreviewOutputs.add(s); 388 previewOutputSizes.add(outSize); 389 break; 390 } 391 } catch (LegacyExceptionUtils.BufferQueueAbandonedException e) { 392 Log.w(TAG, "Surface abandoned, skipping...", e); 393 } 394 } 395 } 396 try { 397 mParams = mCamera.getParameters(); 398 } catch (RuntimeException e) { 399 Log.e(TAG, "Received device exception: ", e); 400 mDeviceState.setError( 401 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 402 return; 403 } 404 405 List<int[]> supportedFpsRanges = mParams.getSupportedPreviewFpsRange(); 406 int[] bestRange = getPhotoPreviewFpsRange(supportedFpsRanges); 407 if (DEBUG) { 408 Log.d(TAG, "doPreviewCapture - Selected range [" + 409 bestRange[Camera.Parameters.PREVIEW_FPS_MIN_INDEX] + "," + 410 bestRange[Camera.Parameters.PREVIEW_FPS_MAX_INDEX] + "]"); 411 } 412 mParams.setPreviewFpsRange(bestRange[Camera.Parameters.PREVIEW_FPS_MIN_INDEX], 413 bestRange[Camera.Parameters.PREVIEW_FPS_MAX_INDEX]); 414 415 Size smallestSupportedJpegSize = calculatePictureSize(mCallbackOutputs, 416 callbackOutputSizes, mParams); 417 418 if (previewOutputSizes.size() > 0) { 419 420 Size largestOutput = SizeAreaComparator.findLargestByArea(previewOutputSizes); 421 422 // Find largest jpeg dimension - assume to have the same aspect ratio as sensor. 423 Size largestJpegDimen = ParameterUtils.getLargestSupportedJpegSizeByArea(mParams); 424 425 Size chosenJpegDimen = (smallestSupportedJpegSize != null) ? smallestSupportedJpegSize 426 : largestJpegDimen; 427 428 List<Size> supportedPreviewSizes = ParameterUtils.convertSizeList( 429 mParams.getSupportedPreviewSizes()); 430 431 // Use smallest preview dimension with same aspect ratio as sensor that is >= than all 432 // of the configured output dimensions. If none exists, fall back to using the largest 433 // supported preview size. 434 long largestOutputArea = largestOutput.getHeight() * (long) largestOutput.getWidth(); 435 Size bestPreviewDimen = SizeAreaComparator.findLargestByArea(supportedPreviewSizes); 436 for (Size s : supportedPreviewSizes) { 437 long currArea = s.getWidth() * s.getHeight(); 438 long bestArea = bestPreviewDimen.getWidth() * bestPreviewDimen.getHeight(); 439 if (checkAspectRatiosMatch(chosenJpegDimen, s) && (currArea < bestArea && 440 currArea >= largestOutputArea)) { 441 bestPreviewDimen = s; 442 } 443 } 444 445 mIntermediateBufferSize = bestPreviewDimen; 446 mParams.setPreviewSize(mIntermediateBufferSize.getWidth(), 447 mIntermediateBufferSize.getHeight()); 448 449 if (DEBUG) { 450 Log.d(TAG, "Intermediate buffer selected with dimens: " + 451 bestPreviewDimen.toString()); 452 } 453 } else { 454 mIntermediateBufferSize = null; 455 if (DEBUG) { 456 Log.d(TAG, "No Intermediate buffer selected, no preview outputs were configured"); 457 } 458 } 459 460 if (smallestSupportedJpegSize != null) { 461 /* 462 * Set takePicture size to the smallest supported JPEG size large enough 463 * to scale/crop out of for the bounding rectangle of the configured JPEG sizes. 464 */ 465 466 Log.i(TAG, "configureOutputs - set take picture size to " + smallestSupportedJpegSize); 467 mParams.setPictureSize( 468 smallestSupportedJpegSize.getWidth(), smallestSupportedJpegSize.getHeight()); 469 } 470 471 // TODO: Detect and optimize single-output paths here to skip stream teeing. 472 if (mGLThreadManager == null) { 473 mGLThreadManager = new GLThreadManager(mCameraId, facing, mDeviceState); 474 mGLThreadManager.start(); 475 } 476 mGLThreadManager.waitUntilStarted(); 477 List<Pair<Surface, Size>> previews = new ArrayList<>(); 478 Iterator<Size> previewSizeIter = previewOutputSizes.iterator(); 479 for (Surface p : mPreviewOutputs) { 480 previews.add(new Pair<>(p, previewSizeIter.next())); 481 } 482 mGLThreadManager.setConfigurationAndWait(previews, mCaptureCollector); 483 mGLThreadManager.allowNewFrames(); 484 mPreviewTexture = mGLThreadManager.getCurrentSurfaceTexture(); 485 if (mPreviewTexture != null) { 486 mPreviewTexture.setOnFrameAvailableListener(mPreviewCallback); 487 } 488 489 try { 490 mCamera.setParameters(mParams); 491 } catch (RuntimeException e) { 492 Log.e(TAG, "Received device exception while configuring: ", e); 493 mDeviceState.setError( 494 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 495 496 } 497 } 498 499 private void resetJpegSurfaceFormats(Collection<Surface> surfaces) { 500 if (!USE_BLOB_FORMAT_OVERRIDE || surfaces == null) { 501 return; 502 } 503 for(Surface s : surfaces) { 504 if (s == null || !s.isValid()) { 505 Log.w(TAG, "Jpeg surface is invalid, skipping..."); 506 continue; 507 } 508 try { 509 LegacyCameraDevice.setSurfaceFormat(s, LegacyMetadataMapper.HAL_PIXEL_FORMAT_BLOB); 510 } catch (LegacyExceptionUtils.BufferQueueAbandonedException e) { 511 Log.w(TAG, "Surface abandoned, skipping...", e); 512 } 513 } 514 } 515 516 /** 517 * Find a JPEG size (that is supported by the legacy camera device) which is equal to or larger 518 * than all of the configured {@code JPEG} outputs (by both width and height). 519 * 520 * <p>If multiple supported JPEG sizes are larger, select the smallest of them which 521 * still satisfies the above constraint.</p> 522 * 523 * <p>As a result, the returned size is guaranteed to be usable without needing 524 * to upscale any of the outputs. If only one {@code JPEG} surface is used, 525 * then no scaling/cropping is necessary between the taken picture and 526 * the {@code JPEG} output surface.</p> 527 * 528 * @param callbackOutputs a non-{@code null} list of {@code Surface}s with any image formats 529 * @param params api1 parameters (used for reading only) 530 * 531 * @return a size large enough to fit all of the configured {@code JPEG} outputs, or 532 * {@code null} if the {@code callbackOutputs} did not have any {@code JPEG} 533 * surfaces. 534 */ 535 private Size calculatePictureSize( List<Surface> callbackOutputs, 536 List<Size> callbackSizes, Camera.Parameters params) { 537 /* 538 * Find the largest JPEG size (if any), from the configured outputs: 539 * - the api1 picture size should be set to the smallest legal size that's at least as large 540 * as the largest configured JPEG size 541 */ 542 if (callbackOutputs.size() != callbackSizes.size()) { 543 throw new IllegalStateException("Input collections must be same length"); 544 } 545 List<Size> configuredJpegSizes = new ArrayList<>(); 546 Iterator<Size> sizeIterator = callbackSizes.iterator(); 547 for (Surface callbackSurface : callbackOutputs) { 548 Size jpegSize = sizeIterator.next(); 549 if (!LegacyCameraDevice.containsSurfaceId(callbackSurface, mJpegSurfaceIds)) { 550 continue; // Ignore non-JPEG callback formats 551 } 552 553 configuredJpegSizes.add(jpegSize); 554 } 555 if (!configuredJpegSizes.isEmpty()) { 556 /* 557 * Find the largest configured JPEG width, and height, independently 558 * of the rest. 559 * 560 * The rest of the JPEG streams can be cropped out of this smallest bounding 561 * rectangle. 562 */ 563 int maxConfiguredJpegWidth = -1; 564 int maxConfiguredJpegHeight = -1; 565 for (Size jpegSize : configuredJpegSizes) { 566 maxConfiguredJpegWidth = jpegSize.getWidth() > maxConfiguredJpegWidth ? 567 jpegSize.getWidth() : maxConfiguredJpegWidth; 568 maxConfiguredJpegHeight = jpegSize.getHeight() > maxConfiguredJpegHeight ? 569 jpegSize.getHeight() : maxConfiguredJpegHeight; 570 } 571 Size smallestBoundJpegSize = new Size(maxConfiguredJpegWidth, maxConfiguredJpegHeight); 572 573 List<Size> supportedJpegSizes = ParameterUtils.convertSizeList( 574 params.getSupportedPictureSizes()); 575 576 /* 577 * Find the smallest supported JPEG size that can fit the smallest bounding 578 * rectangle for the configured JPEG sizes. 579 */ 580 List<Size> candidateSupportedJpegSizes = new ArrayList<>(); 581 for (Size supportedJpegSize : supportedJpegSizes) { 582 if (supportedJpegSize.getWidth() >= maxConfiguredJpegWidth && 583 supportedJpegSize.getHeight() >= maxConfiguredJpegHeight) { 584 candidateSupportedJpegSizes.add(supportedJpegSize); 585 } 586 } 587 588 if (candidateSupportedJpegSizes.isEmpty()) { 589 throw new AssertionError( 590 "Could not find any supported JPEG sizes large enough to fit " + 591 smallestBoundJpegSize); 592 } 593 594 Size smallestSupportedJpegSize = Collections.min(candidateSupportedJpegSizes, 595 new SizeAreaComparator()); 596 597 if (!smallestSupportedJpegSize.equals(smallestBoundJpegSize)) { 598 Log.w(TAG, 599 String.format( 600 "configureOutputs - Will need to crop picture %s into " 601 + "smallest bound size %s", 602 smallestSupportedJpegSize, smallestBoundJpegSize)); 603 } 604 605 return smallestSupportedJpegSize; 606 } 607 608 return null; 609 } 610 611 private static boolean checkAspectRatiosMatch(Size a, Size b) { 612 float aAspect = a.getWidth() / (float) a.getHeight(); 613 float bAspect = b.getWidth() / (float) b.getHeight(); 614 615 return Math.abs(aAspect - bAspect) < ASPECT_RATIO_TOLERANCE; 616 } 617 618 // Calculate the highest FPS range supported 619 private int[] getPhotoPreviewFpsRange(List<int[]> frameRates) { 620 if (frameRates.size() == 0) { 621 Log.e(TAG, "No supported frame rates returned!"); 622 return null; 623 } 624 625 int bestMin = 0; 626 int bestMax = 0; 627 int bestIndex = 0; 628 int index = 0; 629 for (int[] rate : frameRates) { 630 int minFps = rate[Camera.Parameters.PREVIEW_FPS_MIN_INDEX]; 631 int maxFps = rate[Camera.Parameters.PREVIEW_FPS_MAX_INDEX]; 632 if (maxFps > bestMax || (maxFps == bestMax && minFps > bestMin)) { 633 bestMin = minFps; 634 bestMax = maxFps; 635 bestIndex = index; 636 } 637 index++; 638 } 639 640 return frameRates.get(bestIndex); 641 } 642 643 private final Handler.Callback mRequestHandlerCb = new Handler.Callback() { 644 private boolean mCleanup = false; 645 private final LegacyResultMapper mMapper = new LegacyResultMapper(); 646 647 @Override 648 public boolean handleMessage(Message msg) { 649 if (mCleanup) { 650 return true; 651 } 652 653 if (DEBUG) { 654 Log.d(TAG, "Request thread handling message:" + msg.what); 655 } 656 long startTime = 0; 657 if (DEBUG) { 658 startTime = SystemClock.elapsedRealtimeNanos(); 659 } 660 switch (msg.what) { 661 case MSG_CONFIGURE_OUTPUTS: 662 ConfigureHolder config = (ConfigureHolder) msg.obj; 663 int sizes = config.surfaces != null ? config.surfaces.size() : 0; 664 Log.i(TAG, "Configure outputs: " + sizes + " surfaces configured."); 665 666 try { 667 boolean success = mCaptureCollector.waitForEmpty(JPEG_FRAME_TIMEOUT, 668 TimeUnit.MILLISECONDS); 669 if (!success) { 670 Log.e(TAG, "Timed out while queueing configure request."); 671 mCaptureCollector.failAll(); 672 } 673 } catch (InterruptedException e) { 674 Log.e(TAG, "Interrupted while waiting for requests to complete."); 675 mDeviceState.setError( 676 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 677 break; 678 } 679 680 configureOutputs(config.surfaces); 681 config.condition.open(); 682 if (DEBUG) { 683 long totalTime = SystemClock.elapsedRealtimeNanos() - startTime; 684 Log.d(TAG, "Configure took " + totalTime + " ns"); 685 } 686 break; 687 case MSG_SUBMIT_CAPTURE_REQUEST: 688 Handler handler = RequestThreadManager.this.mRequestThread.getHandler(); 689 690 // Get the next burst from the request queue. 691 Pair<BurstHolder, Long> nextBurst = mRequestQueue.getNext(); 692 693 if (nextBurst == null) { 694 // If there are no further requests queued, wait for any currently executing 695 // requests to complete, then switch to idle state. 696 try { 697 boolean success = mCaptureCollector.waitForEmpty(JPEG_FRAME_TIMEOUT, 698 TimeUnit.MILLISECONDS); 699 if (!success) { 700 Log.e(TAG, 701 "Timed out while waiting for prior requests to complete."); 702 mCaptureCollector.failAll(); 703 } 704 } catch (InterruptedException e) { 705 Log.e(TAG, "Interrupted while waiting for requests to complete: ", e); 706 mDeviceState.setError( 707 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 708 break; 709 } 710 711 synchronized (mIdleLock) { 712 // Retry the the request queue. 713 nextBurst = mRequestQueue.getNext(); 714 715 // If we still have no queued requests, go idle. 716 if (nextBurst == null) { 717 mDeviceState.setIdle(); 718 break; 719 } 720 } 721 } 722 723 if (nextBurst != null) { 724 // Queue another capture if we did not get the last burst. 725 handler.sendEmptyMessage(MSG_SUBMIT_CAPTURE_REQUEST); 726 } 727 728 // Complete each request in the burst 729 List<RequestHolder> requests = 730 nextBurst.first.produceRequestHolders(nextBurst.second); 731 for (RequestHolder holder : requests) { 732 CaptureRequest request = holder.getRequest(); 733 734 boolean paramsChanged = false; 735 736 // Only update parameters if the request has changed 737 if (mLastRequest == null || mLastRequest.captureRequest != request) { 738 739 // The intermediate buffer is sometimes null, but we always need 740 // the Camera1 API configured preview size 741 Size previewSize = ParameterUtils.convertSize(mParams.getPreviewSize()); 742 743 LegacyRequest legacyRequest = new LegacyRequest(mCharacteristics, 744 request, previewSize, mParams); // params are copied 745 746 747 // Parameters are mutated as a side-effect 748 LegacyMetadataMapper.convertRequestMetadata(/*inout*/legacyRequest); 749 750 // If the parameters have changed, set them in the Camera1 API. 751 if (!mParams.same(legacyRequest.parameters)) { 752 try { 753 mCamera.setParameters(legacyRequest.parameters); 754 } catch (RuntimeException e) { 755 // If setting the parameters failed, report a request error to 756 // the camera client, and skip any further work for this request 757 Log.e(TAG, "Exception while setting camera parameters: ", e); 758 holder.failRequest(); 759 mDeviceState.setCaptureStart(holder, /*timestamp*/0, 760 CameraDeviceImpl.CameraDeviceCallbacks. 761 ERROR_CAMERA_REQUEST); 762 continue; 763 } 764 paramsChanged = true; 765 mParams = legacyRequest.parameters; 766 } 767 768 mLastRequest = legacyRequest; 769 } 770 771 try { 772 boolean success = mCaptureCollector.queueRequest(holder, 773 mLastRequest, JPEG_FRAME_TIMEOUT, TimeUnit.MILLISECONDS); 774 775 if (!success) { 776 // Report a request error if we timed out while queuing this. 777 Log.e(TAG, "Timed out while queueing capture request."); 778 holder.failRequest(); 779 mDeviceState.setCaptureStart(holder, /*timestamp*/0, 780 CameraDeviceImpl.CameraDeviceCallbacks. 781 ERROR_CAMERA_REQUEST); 782 continue; 783 } 784 785 // Starting the preview needs to happen before enabling 786 // face detection or auto focus 787 if (holder.hasPreviewTargets()) { 788 doPreviewCapture(holder); 789 } 790 if (holder.hasJpegTargets()) { 791 while(!mCaptureCollector.waitForPreviewsEmpty(PREVIEW_FRAME_TIMEOUT, 792 TimeUnit.MILLISECONDS)) { 793 // Fail preview requests until the queue is empty. 794 Log.e(TAG, "Timed out while waiting for preview requests to " + 795 "complete."); 796 mCaptureCollector.failNextPreview(); 797 } 798 mReceivedJpeg.close(); 799 doJpegCapturePrepare(holder); 800 } 801 802 /* 803 * Do all the actions that require a preview to have been started 804 */ 805 806 // Toggle face detection on/off 807 // - do this before AF to give AF a chance to use faces 808 mFaceDetectMapper.processFaceDetectMode(request, /*in*/mParams); 809 810 // Unconditionally process AF triggers, since they're non-idempotent 811 // - must be done after setting the most-up-to-date AF mode 812 mFocusStateMapper.processRequestTriggers(request, mParams); 813 814 if (holder.hasJpegTargets()) { 815 doJpegCapture(holder); 816 if (!mReceivedJpeg.block(JPEG_FRAME_TIMEOUT)) { 817 Log.e(TAG, "Hit timeout for jpeg callback!"); 818 mCaptureCollector.failNextJpeg(); 819 } 820 } 821 822 } catch (IOException e) { 823 Log.e(TAG, "Received device exception during capture call: ", e); 824 mDeviceState.setError( 825 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 826 break; 827 } catch (InterruptedException e) { 828 Log.e(TAG, "Interrupted during capture: ", e); 829 mDeviceState.setError( 830 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 831 break; 832 } catch (RuntimeException e) { 833 Log.e(TAG, "Received device exception during capture call: ", e); 834 mDeviceState.setError( 835 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 836 break; 837 } 838 839 if (paramsChanged) { 840 if (DEBUG) { 841 Log.d(TAG, "Params changed -- getting new Parameters from HAL."); 842 } 843 try { 844 mParams = mCamera.getParameters(); 845 } catch (RuntimeException e) { 846 Log.e(TAG, "Received device exception: ", e); 847 mDeviceState.setError( 848 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 849 break; 850 } 851 852 // Update parameters to the latest that we think the camera is using 853 mLastRequest.setParameters(mParams); 854 } 855 856 MutableLong timestampMutable = new MutableLong(/*value*/0L); 857 try { 858 boolean success = mCaptureCollector.waitForRequestCompleted(holder, 859 REQUEST_COMPLETE_TIMEOUT, TimeUnit.MILLISECONDS, 860 /*out*/timestampMutable); 861 862 if (!success) { 863 Log.e(TAG, "Timed out while waiting for request to complete."); 864 mCaptureCollector.failAll(); 865 } 866 } catch (InterruptedException e) { 867 Log.e(TAG, "Interrupted waiting for request completion: ", e); 868 mDeviceState.setError( 869 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 870 break; 871 } 872 873 CameraMetadataNative result = mMapper.cachedConvertResultMetadata( 874 mLastRequest, timestampMutable.value); 875 /* 876 * Order matters: The default result mapper is state-less; the 877 * other mappers carry state and may override keys set by the default 878 * mapper with their own values. 879 */ 880 881 // Update AF state 882 mFocusStateMapper.mapResultTriggers(result); 883 // Update face-related results 884 mFaceDetectMapper.mapResultFaces(result, mLastRequest); 885 886 if (!holder.requestFailed()) { 887 mDeviceState.setCaptureResult(holder, result, 888 CameraDeviceState.NO_CAPTURE_ERROR); 889 } 890 } 891 if (DEBUG) { 892 long totalTime = SystemClock.elapsedRealtimeNanos() - startTime; 893 Log.d(TAG, "Capture request took " + totalTime + " ns"); 894 mRequestCounter.countAndLog(); 895 } 896 break; 897 case MSG_CLEANUP: 898 mCleanup = true; 899 try { 900 boolean success = mCaptureCollector.waitForEmpty(JPEG_FRAME_TIMEOUT, 901 TimeUnit.MILLISECONDS); 902 if (!success) { 903 Log.e(TAG, "Timed out while queueing cleanup request."); 904 mCaptureCollector.failAll(); 905 } 906 } catch (InterruptedException e) { 907 Log.e(TAG, "Interrupted while waiting for requests to complete: ", e); 908 mDeviceState.setError( 909 CameraDeviceImpl.CameraDeviceCallbacks.ERROR_CAMERA_DEVICE); 910 } 911 if (mGLThreadManager != null) { 912 mGLThreadManager.quit(); 913 mGLThreadManager = null; 914 } 915 if (mCamera != null) { 916 mCamera.release(); 917 mCamera = null; 918 } 919 resetJpegSurfaceFormats(mCallbackOutputs); 920 break; 921 case RequestHandlerThread.MSG_POKE_IDLE_HANDLER: 922 // OK: Ignore message. 923 break; 924 default: 925 throw new AssertionError("Unhandled message " + msg.what + 926 " on RequestThread."); 927 } 928 return true; 929 } 930 }; 931 932 /** 933 * Create a new RequestThreadManager. 934 * 935 * @param cameraId the id of the camera to use. 936 * @param camera an open camera object. The RequestThreadManager takes ownership of this camera 937 * object, and is responsible for closing it. 938 * @param characteristics the static camera characteristics corresponding to this camera device 939 * @param deviceState a {@link CameraDeviceState} state machine. 940 */ 941 public RequestThreadManager(int cameraId, Camera camera, CameraCharacteristics characteristics, 942 CameraDeviceState deviceState) { 943 mCamera = checkNotNull(camera, "camera must not be null"); 944 mCameraId = cameraId; 945 mCharacteristics = checkNotNull(characteristics, "characteristics must not be null"); 946 String name = String.format("RequestThread-%d", cameraId); 947 TAG = name; 948 mDeviceState = checkNotNull(deviceState, "deviceState must not be null"); 949 mFocusStateMapper = new LegacyFocusStateMapper(mCamera); 950 mFaceDetectMapper = new LegacyFaceDetectMapper(mCamera, mCharacteristics); 951 mCaptureCollector = new CaptureCollector(MAX_IN_FLIGHT_REQUESTS, mDeviceState); 952 mRequestThread = new RequestHandlerThread(name, mRequestHandlerCb); 953 mCamera.setErrorCallback(mErrorCallback); 954 } 955 956 /** 957 * Start the request thread. 958 */ 959 public void start() { 960 mRequestThread.start(); 961 } 962 963 /** 964 * Flush any pending requests. 965 * 966 * @return the last frame number. 967 */ 968 public long flush() { 969 Log.i(TAG, "Flushing all pending requests."); 970 long lastFrame = mRequestQueue.stopRepeating(); 971 mCaptureCollector.failAll(); 972 return lastFrame; 973 } 974 975 /** 976 * Quit the request thread, and clean up everything. 977 */ 978 public void quit() { 979 if (!mQuit.getAndSet(true)) { // Avoid sending messages on dead thread's handler. 980 Handler handler = mRequestThread.waitAndGetHandler(); 981 handler.sendMessageAtFrontOfQueue(handler.obtainMessage(MSG_CLEANUP)); 982 mRequestThread.quitSafely(); 983 try { 984 mRequestThread.join(); 985 } catch (InterruptedException e) { 986 Log.e(TAG, String.format("Thread %s (%d) interrupted while quitting.", 987 mRequestThread.getName(), mRequestThread.getId())); 988 } 989 } 990 } 991 992 /** 993 * Submit the given burst of requests to be captured. 994 * 995 * <p>If the burst is repeating, replace the current repeating burst.</p> 996 * 997 * @param requests the burst of requests to add to the queue. 998 * @param repeating true if the burst is repeating. 999 * @param frameNumber an output argument that contains either the frame number of the last frame 1000 * that will be returned for this request, or the frame number of the last 1001 * frame that will be returned for the current repeating request if this 1002 * burst is set to be repeating. 1003 * @return the request id. 1004 */ 1005 public int submitCaptureRequests(List<CaptureRequest> requests, boolean repeating, 1006 /*out*/LongParcelable frameNumber) { 1007 Handler handler = mRequestThread.waitAndGetHandler(); 1008 int ret; 1009 synchronized (mIdleLock) { 1010 ret = mRequestQueue.submit(requests, repeating, frameNumber); 1011 handler.sendEmptyMessage(MSG_SUBMIT_CAPTURE_REQUEST); 1012 } 1013 return ret; 1014 } 1015 1016 /** 1017 * Cancel a repeating request. 1018 * 1019 * @param requestId the id of the repeating request to cancel. 1020 * @return the last frame to be returned from the HAL for the given repeating request, or 1021 * {@code INVALID_FRAME} if none exists. 1022 */ 1023 public long cancelRepeating(int requestId) { 1024 return mRequestQueue.stopRepeating(requestId); 1025 } 1026 1027 /** 1028 * Configure with the current list of output Surfaces. 1029 * 1030 * <p> 1031 * This operation blocks until the configuration is complete. 1032 * </p> 1033 * 1034 * <p>Using a {@code null} or empty {@code outputs} list is the equivalent of unconfiguring.</p> 1035 * 1036 * @param outputs a {@link java.util.Collection} of outputs to configure. 1037 */ 1038 public void configure(Collection<Pair<Surface, Size>> outputs) { 1039 Handler handler = mRequestThread.waitAndGetHandler(); 1040 final ConditionVariable condition = new ConditionVariable(/*closed*/false); 1041 ConfigureHolder holder = new ConfigureHolder(condition, outputs); 1042 handler.sendMessage(handler.obtainMessage(MSG_CONFIGURE_OUTPUTS, 0, 0, holder)); 1043 condition.block(); 1044 } 1045} 1046