Camera2Client.cpp revision 092d49c26d77fafad5170bf709c2a716ec335855
1/* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define LOG_TAG "Camera2Client" 18#define ATRACE_TAG ATRACE_TAG_CAMERA 19//#define LOG_NDEBUG 0 20 21#include <inttypes.h> 22#include <utils/Log.h> 23#include <utils/Trace.h> 24 25#include <cutils/properties.h> 26#include <gui/Surface.h> 27 28#include "api1/Camera2Client.h" 29 30#include "api1/client2/StreamingProcessor.h" 31#include "api1/client2/JpegProcessor.h" 32#include "api1/client2/CaptureSequencer.h" 33#include "api1/client2/CallbackProcessor.h" 34#include "api1/client2/ZslProcessor.h" 35#include "api1/client2/ZslProcessor3.h" 36 37#define ALOG1(...) ALOGD_IF(gLogLevel >= 1, __VA_ARGS__); 38#define ALOG2(...) ALOGD_IF(gLogLevel >= 2, __VA_ARGS__); 39 40namespace android { 41using namespace camera2; 42 43static int getCallingPid() { 44 return IPCThreadState::self()->getCallingPid(); 45} 46 47// Interface used by CameraService 48 49Camera2Client::Camera2Client(const sp<CameraService>& cameraService, 50 const sp<ICameraClient>& cameraClient, 51 const String16& clientPackageName, 52 int cameraId, 53 int cameraFacing, 54 int clientPid, 55 uid_t clientUid, 56 int servicePid, 57 bool legacyMode): 58 Camera2ClientBase(cameraService, cameraClient, clientPackageName, 59 cameraId, cameraFacing, clientPid, clientUid, servicePid), 60 mParameters(cameraId, cameraFacing) 61{ 62 ATRACE_CALL(); 63 64 SharedParameters::Lock l(mParameters); 65 l.mParameters.state = Parameters::DISCONNECTED; 66 67 mLegacyMode = legacyMode; 68} 69 70status_t Camera2Client::initialize(camera_module_t *module) 71{ 72 ATRACE_CALL(); 73 ALOGV("%s: Initializing client for camera %d", __FUNCTION__, mCameraId); 74 status_t res; 75 76 res = Camera2ClientBase::initialize(module); 77 if (res != OK) { 78 return res; 79 } 80 81 { 82 SharedParameters::Lock l(mParameters); 83 84 res = l.mParameters.initialize(&(mDevice->info()), mDeviceVersion); 85 if (res != OK) { 86 ALOGE("%s: Camera %d: unable to build defaults: %s (%d)", 87 __FUNCTION__, mCameraId, strerror(-res), res); 88 return NO_INIT; 89 } 90 } 91 92 String8 threadName; 93 94 mStreamingProcessor = new StreamingProcessor(this); 95 threadName = String8::format("C2-%d-StreamProc", 96 mCameraId); 97 mStreamingProcessor->run(threadName.string()); 98 99 mFrameProcessor = new FrameProcessor(mDevice, this); 100 threadName = String8::format("C2-%d-FrameProc", 101 mCameraId); 102 mFrameProcessor->run(threadName.string()); 103 104 mCaptureSequencer = new CaptureSequencer(this); 105 threadName = String8::format("C2-%d-CaptureSeq", 106 mCameraId); 107 mCaptureSequencer->run(threadName.string()); 108 109 mJpegProcessor = new JpegProcessor(this, mCaptureSequencer); 110 threadName = String8::format("C2-%d-JpegProc", 111 mCameraId); 112 mJpegProcessor->run(threadName.string()); 113 114 switch (mDeviceVersion) { 115 case CAMERA_DEVICE_API_VERSION_2_0: { 116 sp<ZslProcessor> zslProc = 117 new ZslProcessor(this, mCaptureSequencer); 118 mZslProcessor = zslProc; 119 mZslProcessorThread = zslProc; 120 break; 121 } 122 case CAMERA_DEVICE_API_VERSION_3_0: 123 case CAMERA_DEVICE_API_VERSION_3_1: 124 case CAMERA_DEVICE_API_VERSION_3_2: { 125 sp<ZslProcessor3> zslProc = 126 new ZslProcessor3(this, mCaptureSequencer); 127 mZslProcessor = zslProc; 128 mZslProcessorThread = zslProc; 129 break; 130 } 131 default: 132 break; 133 } 134 threadName = String8::format("C2-%d-ZslProc", 135 mCameraId); 136 mZslProcessorThread->run(threadName.string()); 137 138 mCallbackProcessor = new CallbackProcessor(this); 139 threadName = String8::format("C2-%d-CallbkProc", 140 mCameraId); 141 mCallbackProcessor->run(threadName.string()); 142 143 if (gLogLevel >= 1) { 144 SharedParameters::Lock l(mParameters); 145 ALOGD("%s: Default parameters converted from camera %d:", __FUNCTION__, 146 mCameraId); 147 ALOGD("%s", l.mParameters.paramsFlattened.string()); 148 } 149 150 return OK; 151} 152 153Camera2Client::~Camera2Client() { 154 ATRACE_CALL(); 155 ALOGV("~Camera2Client"); 156 157 mDestructionStarted = true; 158 159 disconnect(); 160 161 ALOGI("Camera %d: Closed", mCameraId); 162} 163 164status_t Camera2Client::dump(int fd, const Vector<String16>& args) { 165 String8 result; 166 result.appendFormat("Client2[%d] (%p) Client: %s PID: %d, dump:\n", 167 mCameraId, 168 getRemoteCallback()->asBinder().get(), 169 String8(mClientPackageName).string(), 170 mClientPid); 171 result.append(" State: "); 172#define CASE_APPEND_ENUM(x) case x: result.append(#x "\n"); break; 173 174 const Parameters& p = mParameters.unsafeAccess(); 175 176 result.append(Parameters::getStateName(p.state)); 177 178 result.append("\n Current parameters:\n"); 179 result.appendFormat(" Preview size: %d x %d\n", 180 p.previewWidth, p.previewHeight); 181 result.appendFormat(" Preview FPS range: %d - %d\n", 182 p.previewFpsRange[0], p.previewFpsRange[1]); 183 result.appendFormat(" Preview HAL pixel format: 0x%x\n", 184 p.previewFormat); 185 result.appendFormat(" Preview transform: %x\n", 186 p.previewTransform); 187 result.appendFormat(" Picture size: %d x %d\n", 188 p.pictureWidth, p.pictureHeight); 189 result.appendFormat(" Jpeg thumbnail size: %d x %d\n", 190 p.jpegThumbSize[0], p.jpegThumbSize[1]); 191 result.appendFormat(" Jpeg quality: %d, thumbnail quality: %d\n", 192 p.jpegQuality, p.jpegThumbQuality); 193 result.appendFormat(" Jpeg rotation: %d\n", p.jpegRotation); 194 result.appendFormat(" GPS tags %s\n", 195 p.gpsEnabled ? "enabled" : "disabled"); 196 if (p.gpsEnabled) { 197 result.appendFormat(" GPS lat x long x alt: %f x %f x %f\n", 198 p.gpsCoordinates[0], p.gpsCoordinates[1], 199 p.gpsCoordinates[2]); 200 result.appendFormat(" GPS timestamp: %" PRId64 "\n", 201 p.gpsTimestamp); 202 result.appendFormat(" GPS processing method: %s\n", 203 p.gpsProcessingMethod.string()); 204 } 205 206 result.append(" White balance mode: "); 207 switch (p.wbMode) { 208 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_AUTO) 209 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_INCANDESCENT) 210 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_FLUORESCENT) 211 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_WARM_FLUORESCENT) 212 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_DAYLIGHT) 213 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_CLOUDY_DAYLIGHT) 214 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_TWILIGHT) 215 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_SHADE) 216 default: result.append("UNKNOWN\n"); 217 } 218 219 result.append(" Effect mode: "); 220 switch (p.effectMode) { 221 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_OFF) 222 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_MONO) 223 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_NEGATIVE) 224 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_SOLARIZE) 225 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_SEPIA) 226 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_POSTERIZE) 227 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_WHITEBOARD) 228 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_BLACKBOARD) 229 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_AQUA) 230 default: result.append("UNKNOWN\n"); 231 } 232 233 result.append(" Antibanding mode: "); 234 switch (p.antibandingMode) { 235 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_AUTO) 236 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_OFF) 237 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_50HZ) 238 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_60HZ) 239 default: result.append("UNKNOWN\n"); 240 } 241 242 result.append(" Scene mode: "); 243 switch (p.sceneMode) { 244 case ANDROID_CONTROL_SCENE_MODE_DISABLED: 245 result.append("AUTO\n"); break; 246 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_ACTION) 247 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_PORTRAIT) 248 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_LANDSCAPE) 249 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_NIGHT) 250 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_NIGHT_PORTRAIT) 251 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_THEATRE) 252 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_BEACH) 253 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SNOW) 254 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SUNSET) 255 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_STEADYPHOTO) 256 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_FIREWORKS) 257 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SPORTS) 258 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_PARTY) 259 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_CANDLELIGHT) 260 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_BARCODE) 261 default: result.append("UNKNOWN\n"); 262 } 263 264 result.append(" Flash mode: "); 265 switch (p.flashMode) { 266 CASE_APPEND_ENUM(Parameters::FLASH_MODE_OFF) 267 CASE_APPEND_ENUM(Parameters::FLASH_MODE_AUTO) 268 CASE_APPEND_ENUM(Parameters::FLASH_MODE_ON) 269 CASE_APPEND_ENUM(Parameters::FLASH_MODE_TORCH) 270 CASE_APPEND_ENUM(Parameters::FLASH_MODE_RED_EYE) 271 CASE_APPEND_ENUM(Parameters::FLASH_MODE_INVALID) 272 default: result.append("UNKNOWN\n"); 273 } 274 275 result.append(" Focus mode: "); 276 switch (p.focusMode) { 277 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_AUTO) 278 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_MACRO) 279 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_CONTINUOUS_VIDEO) 280 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_CONTINUOUS_PICTURE) 281 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_EDOF) 282 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_INFINITY) 283 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_FIXED) 284 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_INVALID) 285 default: result.append("UNKNOWN\n"); 286 } 287 288 result.append(" Focus state: "); 289 switch (p.focusState) { 290 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_INACTIVE) 291 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN) 292 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED) 293 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED) 294 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_ACTIVE_SCAN) 295 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED) 296 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED) 297 default: result.append("UNKNOWN\n"); 298 } 299 300 result.append(" Focusing areas:\n"); 301 for (size_t i = 0; i < p.focusingAreas.size(); i++) { 302 result.appendFormat(" [ (%d, %d, %d, %d), weight %d ]\n", 303 p.focusingAreas[i].left, 304 p.focusingAreas[i].top, 305 p.focusingAreas[i].right, 306 p.focusingAreas[i].bottom, 307 p.focusingAreas[i].weight); 308 } 309 310 result.appendFormat(" Exposure compensation index: %d\n", 311 p.exposureCompensation); 312 313 result.appendFormat(" AE lock %s, AWB lock %s\n", 314 p.autoExposureLock ? "enabled" : "disabled", 315 p.autoWhiteBalanceLock ? "enabled" : "disabled" ); 316 317 result.appendFormat(" Metering areas:\n"); 318 for (size_t i = 0; i < p.meteringAreas.size(); i++) { 319 result.appendFormat(" [ (%d, %d, %d, %d), weight %d ]\n", 320 p.meteringAreas[i].left, 321 p.meteringAreas[i].top, 322 p.meteringAreas[i].right, 323 p.meteringAreas[i].bottom, 324 p.meteringAreas[i].weight); 325 } 326 327 result.appendFormat(" Zoom index: %d\n", p.zoom); 328 result.appendFormat(" Video size: %d x %d\n", p.videoWidth, 329 p.videoHeight); 330 331 result.appendFormat(" Recording hint is %s\n", 332 p.recordingHint ? "set" : "not set"); 333 334 result.appendFormat(" Video stabilization is %s\n", 335 p.videoStabilization ? "enabled" : "disabled"); 336 337 result.appendFormat(" Selected still capture FPS range: %d - %d\n", 338 p.fastInfo.bestStillCaptureFpsRange[0], 339 p.fastInfo.bestStillCaptureFpsRange[1]); 340 341 result.append(" Current streams:\n"); 342 result.appendFormat(" Preview stream ID: %d\n", 343 getPreviewStreamId()); 344 result.appendFormat(" Capture stream ID: %d\n", 345 getCaptureStreamId()); 346 result.appendFormat(" Recording stream ID: %d\n", 347 getRecordingStreamId()); 348 349 result.append(" Quirks for this camera:\n"); 350 bool haveQuirk = false; 351 if (p.quirks.triggerAfWithAuto) { 352 result.appendFormat(" triggerAfWithAuto\n"); 353 haveQuirk = true; 354 } 355 if (p.quirks.useZslFormat) { 356 result.appendFormat(" useZslFormat\n"); 357 haveQuirk = true; 358 } 359 if (p.quirks.meteringCropRegion) { 360 result.appendFormat(" meteringCropRegion\n"); 361 haveQuirk = true; 362 } 363 if (p.quirks.partialResults) { 364 result.appendFormat(" usePartialResult\n"); 365 haveQuirk = true; 366 } 367 if (!haveQuirk) { 368 result.appendFormat(" none\n"); 369 } 370 371 write(fd, result.string(), result.size()); 372 373 mStreamingProcessor->dump(fd, args); 374 375 mCaptureSequencer->dump(fd, args); 376 377 mFrameProcessor->dump(fd, args); 378 379 mZslProcessor->dump(fd, args); 380 381 return dumpDevice(fd, args); 382#undef CASE_APPEND_ENUM 383} 384 385// ICamera interface 386 387void Camera2Client::disconnect() { 388 ATRACE_CALL(); 389 Mutex::Autolock icl(mBinderSerializationLock); 390 391 // Allow both client and the media server to disconnect at all times 392 int callingPid = getCallingPid(); 393 if (callingPid != mClientPid && callingPid != mServicePid) return; 394 395 if (mDevice == 0) return; 396 397 ALOGV("Camera %d: Shutting down", mCameraId); 398 399 /** 400 * disconnect() cannot call any methods that might need to promote a 401 * wp<Camera2Client>, since disconnect can be called from the destructor, at 402 * which point all such promotions will fail. 403 */ 404 405 stopPreviewL(); 406 407 { 408 SharedParameters::Lock l(mParameters); 409 if (l.mParameters.state == Parameters::DISCONNECTED) return; 410 l.mParameters.state = Parameters::DISCONNECTED; 411 } 412 413 mStreamingProcessor->requestExit(); 414 mFrameProcessor->requestExit(); 415 mCaptureSequencer->requestExit(); 416 mJpegProcessor->requestExit(); 417 mZslProcessorThread->requestExit(); 418 mCallbackProcessor->requestExit(); 419 420 ALOGV("Camera %d: Waiting for threads", mCameraId); 421 422 { 423 // Don't wait with lock held, in case the other threads need to 424 // complete callbacks that re-enter Camera2Client 425 mBinderSerializationLock.unlock(); 426 427 mStreamingProcessor->join(); 428 mFrameProcessor->join(); 429 mCaptureSequencer->join(); 430 mJpegProcessor->join(); 431 mZslProcessorThread->join(); 432 mCallbackProcessor->join(); 433 434 mBinderSerializationLock.lock(); 435 } 436 437 ALOGV("Camera %d: Deleting streams", mCameraId); 438 439 mStreamingProcessor->deletePreviewStream(); 440 mStreamingProcessor->deleteRecordingStream(); 441 mJpegProcessor->deleteStream(); 442 mCallbackProcessor->deleteStream(); 443 mZslProcessor->deleteStream(); 444 445 // Remove all ZSL stream state before disconnect; needed to work around b/15408128. 446 mZslProcessor->disconnect(); 447 448 ALOGV("Camera %d: Disconnecting device", mCameraId); 449 450 mDevice->disconnect(); 451 452 mDevice.clear(); 453 454 CameraService::Client::disconnect(); 455} 456 457status_t Camera2Client::connect(const sp<ICameraClient>& client) { 458 ATRACE_CALL(); 459 ALOGV("%s: E", __FUNCTION__); 460 Mutex::Autolock icl(mBinderSerializationLock); 461 462 if (mClientPid != 0 && getCallingPid() != mClientPid) { 463 ALOGE("%s: Camera %d: Connection attempt from pid %d; " 464 "current locked to pid %d", __FUNCTION__, 465 mCameraId, getCallingPid(), mClientPid); 466 return BAD_VALUE; 467 } 468 469 mClientPid = getCallingPid(); 470 471 mRemoteCallback = client; 472 mSharedCameraCallbacks = client; 473 474 return OK; 475} 476 477status_t Camera2Client::lock() { 478 ATRACE_CALL(); 479 ALOGV("%s: E", __FUNCTION__); 480 Mutex::Autolock icl(mBinderSerializationLock); 481 ALOGV("%s: Camera %d: Lock call from pid %d; current client pid %d", 482 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 483 484 if (mClientPid == 0) { 485 mClientPid = getCallingPid(); 486 return OK; 487 } 488 489 if (mClientPid != getCallingPid()) { 490 ALOGE("%s: Camera %d: Lock call from pid %d; currently locked to pid %d", 491 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 492 return EBUSY; 493 } 494 495 return OK; 496} 497 498status_t Camera2Client::unlock() { 499 ATRACE_CALL(); 500 ALOGV("%s: E", __FUNCTION__); 501 Mutex::Autolock icl(mBinderSerializationLock); 502 ALOGV("%s: Camera %d: Unlock call from pid %d; current client pid %d", 503 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 504 505 if (mClientPid == getCallingPid()) { 506 SharedParameters::Lock l(mParameters); 507 if (l.mParameters.state == Parameters::RECORD || 508 l.mParameters.state == Parameters::VIDEO_SNAPSHOT) { 509 ALOGD("Not allowed to unlock camera during recording."); 510 return INVALID_OPERATION; 511 } 512 mClientPid = 0; 513 mRemoteCallback.clear(); 514 mSharedCameraCallbacks.clear(); 515 return OK; 516 } 517 518 ALOGE("%s: Camera %d: Unlock call from pid %d; currently locked to pid %d", 519 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 520 return EBUSY; 521} 522 523status_t Camera2Client::setPreviewTarget( 524 const sp<IGraphicBufferProducer>& bufferProducer) { 525 ATRACE_CALL(); 526 ALOGV("%s: E", __FUNCTION__); 527 Mutex::Autolock icl(mBinderSerializationLock); 528 status_t res; 529 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 530 531 sp<IBinder> binder; 532 sp<ANativeWindow> window; 533 if (bufferProducer != 0) { 534 binder = bufferProducer->asBinder(); 535 // Using controlledByApp flag to ensure that the buffer queue remains in 536 // async mode for the old camera API, where many applications depend 537 // on that behavior. 538 window = new Surface(bufferProducer, /*controlledByApp*/ true); 539 } 540 return setPreviewWindowL(binder, window); 541} 542 543status_t Camera2Client::setPreviewWindowL(const sp<IBinder>& binder, 544 sp<ANativeWindow> window) { 545 ATRACE_CALL(); 546 status_t res; 547 548 if (binder == mPreviewSurface) { 549 ALOGV("%s: Camera %d: New window is same as old window", 550 __FUNCTION__, mCameraId); 551 return NO_ERROR; 552 } 553 554 Parameters::State state; 555 { 556 SharedParameters::Lock l(mParameters); 557 state = l.mParameters.state; 558 } 559 switch (state) { 560 case Parameters::DISCONNECTED: 561 case Parameters::RECORD: 562 case Parameters::STILL_CAPTURE: 563 case Parameters::VIDEO_SNAPSHOT: 564 ALOGE("%s: Camera %d: Cannot set preview display while in state %s", 565 __FUNCTION__, mCameraId, 566 Parameters::getStateName(state)); 567 return INVALID_OPERATION; 568 case Parameters::STOPPED: 569 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 570 // OK 571 break; 572 case Parameters::PREVIEW: 573 // Already running preview - need to stop and create a new stream 574 res = stopStream(); 575 if (res != OK) { 576 ALOGE("%s: Unable to stop preview to swap windows: %s (%d)", 577 __FUNCTION__, strerror(-res), res); 578 return res; 579 } 580 state = Parameters::WAITING_FOR_PREVIEW_WINDOW; 581 break; 582 } 583 584 mPreviewSurface = binder; 585 res = mStreamingProcessor->setPreviewWindow(window); 586 if (res != OK) { 587 ALOGE("%s: Unable to set new preview window: %s (%d)", 588 __FUNCTION__, strerror(-res), res); 589 return res; 590 } 591 592 if (state == Parameters::WAITING_FOR_PREVIEW_WINDOW) { 593 SharedParameters::Lock l(mParameters); 594 l.mParameters.state = state; 595 return startPreviewL(l.mParameters, false); 596 } 597 598 return OK; 599} 600 601void Camera2Client::setPreviewCallbackFlag(int flag) { 602 ATRACE_CALL(); 603 ALOGV("%s: Camera %d: Flag 0x%x", __FUNCTION__, mCameraId, flag); 604 Mutex::Autolock icl(mBinderSerializationLock); 605 606 if ( checkPid(__FUNCTION__) != OK) return; 607 608 SharedParameters::Lock l(mParameters); 609 setPreviewCallbackFlagL(l.mParameters, flag); 610} 611 612void Camera2Client::setPreviewCallbackFlagL(Parameters ¶ms, int flag) { 613 status_t res = OK; 614 615 switch(params.state) { 616 case Parameters::STOPPED: 617 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 618 case Parameters::PREVIEW: 619 case Parameters::STILL_CAPTURE: 620 // OK 621 break; 622 default: 623 if (flag & CAMERA_FRAME_CALLBACK_FLAG_ENABLE_MASK) { 624 ALOGE("%s: Camera %d: Can't use preview callbacks " 625 "in state %d", __FUNCTION__, mCameraId, params.state); 626 return; 627 } 628 } 629 630 if (flag & CAMERA_FRAME_CALLBACK_FLAG_ONE_SHOT_MASK) { 631 ALOGV("%s: setting oneshot", __FUNCTION__); 632 params.previewCallbackOneShot = true; 633 } 634 if (params.previewCallbackFlags != (uint32_t)flag) { 635 636 if (params.previewCallbackSurface && flag != CAMERA_FRAME_CALLBACK_FLAG_NOOP) { 637 // Disable any existing preview callback window when enabling 638 // preview callback flags 639 res = mCallbackProcessor->setCallbackWindow(NULL); 640 if (res != OK) { 641 ALOGE("%s: Camera %d: Unable to clear preview callback surface:" 642 " %s (%d)", __FUNCTION__, mCameraId, strerror(-res), res); 643 return; 644 } 645 params.previewCallbackSurface = false; 646 } 647 648 params.previewCallbackFlags = flag; 649 650 if (params.state == Parameters::PREVIEW) { 651 res = startPreviewL(params, true); 652 if (res != OK) { 653 ALOGE("%s: Camera %d: Unable to refresh request in state %s", 654 __FUNCTION__, mCameraId, 655 Parameters::getStateName(params.state)); 656 } 657 } 658 } 659} 660 661status_t Camera2Client::setPreviewCallbackTarget( 662 const sp<IGraphicBufferProducer>& callbackProducer) { 663 ATRACE_CALL(); 664 ALOGV("%s: E", __FUNCTION__); 665 Mutex::Autolock icl(mBinderSerializationLock); 666 status_t res; 667 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 668 669 sp<ANativeWindow> window; 670 if (callbackProducer != 0) { 671 window = new Surface(callbackProducer); 672 } 673 674 res = mCallbackProcessor->setCallbackWindow(window); 675 if (res != OK) { 676 ALOGE("%s: Camera %d: Unable to set preview callback surface: %s (%d)", 677 __FUNCTION__, mCameraId, strerror(-res), res); 678 return res; 679 } 680 681 SharedParameters::Lock l(mParameters); 682 683 if (window != NULL) { 684 // Disable traditional callbacks when a valid callback target is given 685 l.mParameters.previewCallbackFlags = CAMERA_FRAME_CALLBACK_FLAG_NOOP; 686 l.mParameters.previewCallbackOneShot = false; 687 l.mParameters.previewCallbackSurface = true; 688 } else { 689 // Disable callback target if given a NULL interface. 690 l.mParameters.previewCallbackSurface = false; 691 } 692 693 switch(l.mParameters.state) { 694 case Parameters::PREVIEW: 695 res = startPreviewL(l.mParameters, true); 696 break; 697 case Parameters::RECORD: 698 case Parameters::VIDEO_SNAPSHOT: 699 res = startRecordingL(l.mParameters, true); 700 break; 701 default: 702 break; 703 } 704 if (res != OK) { 705 ALOGE("%s: Camera %d: Unable to refresh request in state %s", 706 __FUNCTION__, mCameraId, 707 Parameters::getStateName(l.mParameters.state)); 708 } 709 710 return OK; 711} 712 713 714status_t Camera2Client::startPreview() { 715 ATRACE_CALL(); 716 ALOGV("%s: E", __FUNCTION__); 717 Mutex::Autolock icl(mBinderSerializationLock); 718 status_t res; 719 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 720 SharedParameters::Lock l(mParameters); 721 return startPreviewL(l.mParameters, false); 722} 723 724status_t Camera2Client::startPreviewL(Parameters ¶ms, bool restart) { 725 ATRACE_CALL(); 726 status_t res; 727 728 ALOGV("%s: state == %d, restart = %d", __FUNCTION__, params.state, restart); 729 730 if ( (params.state == Parameters::PREVIEW || 731 params.state == Parameters::RECORD || 732 params.state == Parameters::VIDEO_SNAPSHOT) 733 && !restart) { 734 // Succeed attempt to re-enter a streaming state 735 ALOGI("%s: Camera %d: Preview already active, ignoring restart", 736 __FUNCTION__, mCameraId); 737 return OK; 738 } 739 if (params.state > Parameters::PREVIEW && !restart) { 740 ALOGE("%s: Can't start preview in state %s", 741 __FUNCTION__, 742 Parameters::getStateName(params.state)); 743 return INVALID_OPERATION; 744 } 745 746 if (!mStreamingProcessor->haveValidPreviewWindow()) { 747 params.state = Parameters::WAITING_FOR_PREVIEW_WINDOW; 748 return OK; 749 } 750 params.state = Parameters::STOPPED; 751 int lastPreviewStreamId = mStreamingProcessor->getPreviewStreamId(); 752 753 res = mStreamingProcessor->updatePreviewStream(params); 754 if (res != OK) { 755 ALOGE("%s: Camera %d: Unable to update preview stream: %s (%d)", 756 __FUNCTION__, mCameraId, strerror(-res), res); 757 return res; 758 } 759 760 bool previewStreamChanged = mStreamingProcessor->getPreviewStreamId() != lastPreviewStreamId; 761 762 // We could wait to create the JPEG output stream until first actual use 763 // (first takePicture call). However, this would substantially increase the 764 // first capture latency on HAL3 devices, and potentially on some HAL2 765 // devices. So create it unconditionally at preview start. As a drawback, 766 // this increases gralloc memory consumption for applications that don't 767 // ever take a picture. 768 // TODO: Find a better compromise, though this likely would involve HAL 769 // changes. 770 int lastJpegStreamId = mJpegProcessor->getStreamId(); 771 res = updateProcessorStream(mJpegProcessor, params); 772 if (res != OK) { 773 ALOGE("%s: Camera %d: Can't pre-configure still image " 774 "stream: %s (%d)", 775 __FUNCTION__, mCameraId, strerror(-res), res); 776 return res; 777 } 778 bool jpegStreamChanged = mJpegProcessor->getStreamId() != lastJpegStreamId; 779 780 Vector<int32_t> outputStreams; 781 bool callbacksEnabled = (params.previewCallbackFlags & 782 CAMERA_FRAME_CALLBACK_FLAG_ENABLE_MASK) || 783 params.previewCallbackSurface; 784 785 if (callbacksEnabled) { 786 // Can't have recording stream hanging around when enabling callbacks, 787 // since it exceeds the max stream count on some devices. 788 if (mStreamingProcessor->getRecordingStreamId() != NO_STREAM) { 789 ALOGV("%s: Camera %d: Clearing out recording stream before " 790 "creating callback stream", __FUNCTION__, mCameraId); 791 res = mStreamingProcessor->stopStream(); 792 if (res != OK) { 793 ALOGE("%s: Camera %d: Can't stop streaming to delete " 794 "recording stream", __FUNCTION__, mCameraId); 795 return res; 796 } 797 res = mStreamingProcessor->deleteRecordingStream(); 798 if (res != OK) { 799 ALOGE("%s: Camera %d: Unable to delete recording stream before " 800 "enabling callbacks: %s (%d)", __FUNCTION__, mCameraId, 801 strerror(-res), res); 802 return res; 803 } 804 } 805 806 res = mCallbackProcessor->updateStream(params); 807 if (res != OK) { 808 ALOGE("%s: Camera %d: Unable to update callback stream: %s (%d)", 809 __FUNCTION__, mCameraId, strerror(-res), res); 810 return res; 811 } 812 outputStreams.push(getCallbackStreamId()); 813 } else if (previewStreamChanged && mCallbackProcessor->getStreamId() != NO_STREAM) { 814 /** 815 * Delete the unused callback stream when preview stream is changed and 816 * preview is not enabled. Don't need stop preview stream as preview is in 817 * STOPPED state now. 818 */ 819 ALOGV("%s: Camera %d: Delete unused preview callback stream.", __FUNCTION__, mCameraId); 820 res = mCallbackProcessor->deleteStream(); 821 if (res != OK) { 822 ALOGE("%s: Camera %d: Unable to delete callback stream %s (%d)", 823 __FUNCTION__, mCameraId, strerror(-res), res); 824 return res; 825 } 826 } 827 828 if (params.zslMode && !params.recordingHint && 829 getRecordingStreamId() == NO_STREAM) { 830 res = updateProcessorStream(mZslProcessor, params); 831 if (res != OK) { 832 ALOGE("%s: Camera %d: Unable to update ZSL stream: %s (%d)", 833 __FUNCTION__, mCameraId, strerror(-res), res); 834 return res; 835 } 836 837 if (jpegStreamChanged) { 838 ALOGV("%s: Camera %d: Clear ZSL buffer queue when Jpeg size is changed", 839 __FUNCTION__, mCameraId); 840 mZslProcessor->clearZslQueue(); 841 } 842 outputStreams.push(getZslStreamId()); 843 } else { 844 mZslProcessor->deleteStream(); 845 } 846 847 outputStreams.push(getPreviewStreamId()); 848 849 if (!params.recordingHint) { 850 if (!restart) { 851 res = mStreamingProcessor->updatePreviewRequest(params); 852 if (res != OK) { 853 ALOGE("%s: Camera %d: Can't set up preview request: " 854 "%s (%d)", __FUNCTION__, mCameraId, 855 strerror(-res), res); 856 return res; 857 } 858 } 859 res = mStreamingProcessor->startStream(StreamingProcessor::PREVIEW, 860 outputStreams); 861 } else { 862 if (!restart) { 863 res = mStreamingProcessor->updateRecordingRequest(params); 864 if (res != OK) { 865 ALOGE("%s: Camera %d: Can't set up preview request with " 866 "record hint: %s (%d)", __FUNCTION__, mCameraId, 867 strerror(-res), res); 868 return res; 869 } 870 } 871 res = mStreamingProcessor->startStream(StreamingProcessor::RECORD, 872 outputStreams); 873 } 874 if (res != OK) { 875 ALOGE("%s: Camera %d: Unable to start streaming preview: %s (%d)", 876 __FUNCTION__, mCameraId, strerror(-res), res); 877 return res; 878 } 879 880 params.state = Parameters::PREVIEW; 881 return OK; 882} 883 884void Camera2Client::stopPreview() { 885 ATRACE_CALL(); 886 ALOGV("%s: E", __FUNCTION__); 887 Mutex::Autolock icl(mBinderSerializationLock); 888 status_t res; 889 if ( (res = checkPid(__FUNCTION__) ) != OK) return; 890 stopPreviewL(); 891} 892 893void Camera2Client::stopPreviewL() { 894 ATRACE_CALL(); 895 status_t res; 896 const nsecs_t kStopCaptureTimeout = 3000000000LL; // 3 seconds 897 Parameters::State state; 898 { 899 SharedParameters::Lock l(mParameters); 900 state = l.mParameters.state; 901 } 902 903 switch (state) { 904 case Parameters::DISCONNECTED: 905 // Nothing to do. 906 break; 907 case Parameters::STOPPED: 908 case Parameters::VIDEO_SNAPSHOT: 909 case Parameters::STILL_CAPTURE: 910 mCaptureSequencer->waitUntilIdle(kStopCaptureTimeout); 911 // no break 912 case Parameters::RECORD: 913 case Parameters::PREVIEW: 914 syncWithDevice(); 915 res = stopStream(); 916 if (res != OK) { 917 ALOGE("%s: Camera %d: Can't stop streaming: %s (%d)", 918 __FUNCTION__, mCameraId, strerror(-res), res); 919 } 920 res = mDevice->waitUntilDrained(); 921 if (res != OK) { 922 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 923 __FUNCTION__, mCameraId, strerror(-res), res); 924 } 925 // Clean up recording stream 926 res = mStreamingProcessor->deleteRecordingStream(); 927 if (res != OK) { 928 ALOGE("%s: Camera %d: Unable to delete recording stream before " 929 "stop preview: %s (%d)", 930 __FUNCTION__, mCameraId, strerror(-res), res); 931 } 932 // no break 933 case Parameters::WAITING_FOR_PREVIEW_WINDOW: { 934 SharedParameters::Lock l(mParameters); 935 l.mParameters.state = Parameters::STOPPED; 936 commandStopFaceDetectionL(l.mParameters); 937 break; 938 } 939 default: 940 ALOGE("%s: Camera %d: Unknown state %d", __FUNCTION__, mCameraId, 941 state); 942 } 943} 944 945bool Camera2Client::previewEnabled() { 946 ATRACE_CALL(); 947 Mutex::Autolock icl(mBinderSerializationLock); 948 status_t res; 949 if ( (res = checkPid(__FUNCTION__) ) != OK) return false; 950 951 SharedParameters::Lock l(mParameters); 952 return l.mParameters.state == Parameters::PREVIEW; 953} 954 955status_t Camera2Client::storeMetaDataInBuffers(bool enabled) { 956 ATRACE_CALL(); 957 Mutex::Autolock icl(mBinderSerializationLock); 958 status_t res; 959 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 960 961 SharedParameters::Lock l(mParameters); 962 switch (l.mParameters.state) { 963 case Parameters::RECORD: 964 case Parameters::VIDEO_SNAPSHOT: 965 ALOGE("%s: Camera %d: Can't be called in state %s", 966 __FUNCTION__, mCameraId, 967 Parameters::getStateName(l.mParameters.state)); 968 return INVALID_OPERATION; 969 default: 970 // OK 971 break; 972 } 973 974 l.mParameters.storeMetadataInBuffers = enabled; 975 976 return OK; 977} 978 979status_t Camera2Client::startRecording() { 980 ATRACE_CALL(); 981 ALOGV("%s: E", __FUNCTION__); 982 Mutex::Autolock icl(mBinderSerializationLock); 983 status_t res; 984 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 985 SharedParameters::Lock l(mParameters); 986 987 return startRecordingL(l.mParameters, false); 988} 989 990status_t Camera2Client::startRecordingL(Parameters ¶ms, bool restart) { 991 status_t res; 992 993 ALOGV("%s: state == %d, restart = %d", __FUNCTION__, params.state, restart); 994 995 switch (params.state) { 996 case Parameters::STOPPED: 997 res = startPreviewL(params, false); 998 if (res != OK) return res; 999 // Make sure first preview request is submitted to the HAL device to avoid 1000 // two consecutive set of configure_streams being called into the HAL. 1001 // TODO: Refactor this to avoid initial preview configuration. 1002 syncWithDevice(); 1003 break; 1004 case Parameters::PREVIEW: 1005 // Ready to go 1006 break; 1007 case Parameters::RECORD: 1008 case Parameters::VIDEO_SNAPSHOT: 1009 // OK to call this when recording is already on, just skip unless 1010 // we're looking to restart 1011 if (!restart) return OK; 1012 break; 1013 default: 1014 ALOGE("%s: Camera %d: Can't start recording in state %s", 1015 __FUNCTION__, mCameraId, 1016 Parameters::getStateName(params.state)); 1017 return INVALID_OPERATION; 1018 }; 1019 1020 if (!params.storeMetadataInBuffers) { 1021 ALOGE("%s: Camera %d: Recording only supported in metadata mode, but " 1022 "non-metadata recording mode requested!", __FUNCTION__, 1023 mCameraId); 1024 return INVALID_OPERATION; 1025 } 1026 1027 if (!restart) { 1028 mCameraService->playSound(CameraService::SOUND_RECORDING); 1029 mStreamingProcessor->updateRecordingRequest(params); 1030 if (res != OK) { 1031 ALOGE("%s: Camera %d: Unable to update recording request: %s (%d)", 1032 __FUNCTION__, mCameraId, strerror(-res), res); 1033 return res; 1034 } 1035 } 1036 1037 // Not all devices can support a preview callback stream and a recording 1038 // stream at the same time, so assume none of them can. 1039 if (mCallbackProcessor->getStreamId() != NO_STREAM) { 1040 ALOGV("%s: Camera %d: Clearing out callback stream before " 1041 "creating recording stream", __FUNCTION__, mCameraId); 1042 res = mStreamingProcessor->stopStream(); 1043 if (res != OK) { 1044 ALOGE("%s: Camera %d: Can't stop streaming to delete callback stream", 1045 __FUNCTION__, mCameraId); 1046 return res; 1047 } 1048 res = mCallbackProcessor->deleteStream(); 1049 if (res != OK) { 1050 ALOGE("%s: Camera %d: Unable to delete callback stream before " 1051 "record: %s (%d)", __FUNCTION__, mCameraId, 1052 strerror(-res), res); 1053 return res; 1054 } 1055 } 1056 1057 // On current HALs, clean up ZSL before transitioning into recording 1058 if (mDeviceVersion != CAMERA_DEVICE_API_VERSION_2_0) { 1059 if (mZslProcessor->getStreamId() != NO_STREAM) { 1060 ALOGV("%s: Camera %d: Clearing out zsl stream before " 1061 "creating recording stream", __FUNCTION__, mCameraId); 1062 res = mStreamingProcessor->stopStream(); 1063 if (res != OK) { 1064 ALOGE("%s: Camera %d: Can't stop streaming to delete callback stream", 1065 __FUNCTION__, mCameraId); 1066 return res; 1067 } 1068 res = mDevice->waitUntilDrained(); 1069 if (res != OK) { 1070 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 1071 __FUNCTION__, mCameraId, strerror(-res), res); 1072 } 1073 res = mZslProcessor->clearZslQueue(); 1074 if (res != OK) { 1075 ALOGE("%s: Camera %d: Can't clear zsl queue", 1076 __FUNCTION__, mCameraId); 1077 return res; 1078 } 1079 res = mZslProcessor->deleteStream(); 1080 if (res != OK) { 1081 ALOGE("%s: Camera %d: Unable to delete zsl stream before " 1082 "record: %s (%d)", __FUNCTION__, mCameraId, 1083 strerror(-res), res); 1084 return res; 1085 } 1086 } 1087 } 1088 1089 // Disable callbacks if they're enabled; can't record and use callbacks, 1090 // and we can't fail record start without stagefright asserting. 1091 params.previewCallbackFlags = 0; 1092 1093 if (mDeviceVersion != CAMERA_DEVICE_API_VERSION_2_0) { 1094 // For newer devices, may need to reconfigure video snapshot JPEG sizes 1095 // during recording startup, so need a more complex sequence here to 1096 // ensure an early stream reconfiguration doesn't happen 1097 bool recordingStreamNeedsUpdate; 1098 res = mStreamingProcessor->recordingStreamNeedsUpdate(params, &recordingStreamNeedsUpdate); 1099 if (res != OK) { 1100 ALOGE("%s: Camera %d: Can't query recording stream", 1101 __FUNCTION__, mCameraId); 1102 return res; 1103 } 1104 1105 if (recordingStreamNeedsUpdate) { 1106 // Need to stop stream here so updateProcessorStream won't trigger configureStream 1107 // Right now camera device cannot handle configureStream failure gracefully 1108 // when device is streaming 1109 res = mStreamingProcessor->stopStream(); 1110 if (res != OK) { 1111 ALOGE("%s: Camera %d: Can't stop streaming to update record " 1112 "stream", __FUNCTION__, mCameraId); 1113 return res; 1114 } 1115 res = mDevice->waitUntilDrained(); 1116 if (res != OK) { 1117 ALOGE("%s: Camera %d: Waiting to stop streaming failed: " 1118 "%s (%d)", __FUNCTION__, mCameraId, 1119 strerror(-res), res); 1120 } 1121 1122 res = updateProcessorStream< 1123 StreamingProcessor, 1124 &StreamingProcessor::updateRecordingStream>( 1125 mStreamingProcessor, 1126 params); 1127 if (res != OK) { 1128 ALOGE("%s: Camera %d: Unable to update recording stream: " 1129 "%s (%d)", __FUNCTION__, mCameraId, 1130 strerror(-res), res); 1131 return res; 1132 } 1133 } 1134 } else { 1135 // Maintain call sequencing for HALv2 devices. 1136 res = updateProcessorStream< 1137 StreamingProcessor, 1138 &StreamingProcessor::updateRecordingStream>(mStreamingProcessor, 1139 params); 1140 if (res != OK) { 1141 ALOGE("%s: Camera %d: Unable to update recording stream: %s (%d)", 1142 __FUNCTION__, mCameraId, strerror(-res), res); 1143 return res; 1144 } 1145 } 1146 1147 Vector<int32_t> outputStreams; 1148 outputStreams.push(getPreviewStreamId()); 1149 outputStreams.push(getRecordingStreamId()); 1150 1151 res = mStreamingProcessor->startStream(StreamingProcessor::RECORD, 1152 outputStreams); 1153 1154 // startStream might trigger a configureStream call and device might fail 1155 // configureStream due to jpeg size > video size. Try again with jpeg size overridden 1156 // to video size. 1157 if (res == BAD_VALUE) { 1158 overrideVideoSnapshotSize(params); 1159 res = mStreamingProcessor->startStream(StreamingProcessor::RECORD, 1160 outputStreams); 1161 } 1162 1163 if (res != OK) { 1164 ALOGE("%s: Camera %d: Unable to start recording stream: %s (%d)", 1165 __FUNCTION__, mCameraId, strerror(-res), res); 1166 return res; 1167 } 1168 1169 if (params.state < Parameters::RECORD) { 1170 params.state = Parameters::RECORD; 1171 } 1172 1173 return OK; 1174} 1175 1176void Camera2Client::stopRecording() { 1177 ATRACE_CALL(); 1178 ALOGV("%s: E", __FUNCTION__); 1179 Mutex::Autolock icl(mBinderSerializationLock); 1180 SharedParameters::Lock l(mParameters); 1181 1182 status_t res; 1183 if ( (res = checkPid(__FUNCTION__) ) != OK) return; 1184 1185 switch (l.mParameters.state) { 1186 case Parameters::RECORD: 1187 // OK to stop 1188 break; 1189 case Parameters::STOPPED: 1190 case Parameters::PREVIEW: 1191 case Parameters::STILL_CAPTURE: 1192 case Parameters::VIDEO_SNAPSHOT: 1193 default: 1194 ALOGE("%s: Camera %d: Can't stop recording in state %s", 1195 __FUNCTION__, mCameraId, 1196 Parameters::getStateName(l.mParameters.state)); 1197 return; 1198 }; 1199 1200 mCameraService->playSound(CameraService::SOUND_RECORDING); 1201 1202 // Remove recording stream to prevent it from slowing down takePicture later 1203 if (!l.mParameters.recordingHint && l.mParameters.isJpegSizeOverridden()) { 1204 res = stopStream(); 1205 if (res != OK) { 1206 ALOGE("%s: Camera %d: Can't stop streaming: %s (%d)", 1207 __FUNCTION__, mCameraId, strerror(-res), res); 1208 } 1209 res = mDevice->waitUntilDrained(); 1210 if (res != OK) { 1211 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 1212 __FUNCTION__, mCameraId, strerror(-res), res); 1213 } 1214 // Clean up recording stream 1215 res = mStreamingProcessor->deleteRecordingStream(); 1216 if (res != OK) { 1217 ALOGE("%s: Camera %d: Unable to delete recording stream before " 1218 "stop preview: %s (%d)", 1219 __FUNCTION__, mCameraId, strerror(-res), res); 1220 } 1221 l.mParameters.recoverOverriddenJpegSize(); 1222 } 1223 1224 res = startPreviewL(l.mParameters, true); 1225 if (res != OK) { 1226 ALOGE("%s: Camera %d: Unable to return to preview", 1227 __FUNCTION__, mCameraId); 1228 } 1229} 1230 1231bool Camera2Client::recordingEnabled() { 1232 ATRACE_CALL(); 1233 Mutex::Autolock icl(mBinderSerializationLock); 1234 1235 if ( checkPid(__FUNCTION__) != OK) return false; 1236 1237 return recordingEnabledL(); 1238} 1239 1240bool Camera2Client::recordingEnabledL() { 1241 ATRACE_CALL(); 1242 SharedParameters::Lock l(mParameters); 1243 1244 return (l.mParameters.state == Parameters::RECORD 1245 || l.mParameters.state == Parameters::VIDEO_SNAPSHOT); 1246} 1247 1248void Camera2Client::releaseRecordingFrame(const sp<IMemory>& mem) { 1249 ATRACE_CALL(); 1250 Mutex::Autolock icl(mBinderSerializationLock); 1251 if ( checkPid(__FUNCTION__) != OK) return; 1252 1253 mStreamingProcessor->releaseRecordingFrame(mem); 1254} 1255 1256status_t Camera2Client::autoFocus() { 1257 ATRACE_CALL(); 1258 Mutex::Autolock icl(mBinderSerializationLock); 1259 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1260 status_t res; 1261 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1262 1263 int triggerId; 1264 bool notifyImmediately = false; 1265 bool notifySuccess = false; 1266 { 1267 SharedParameters::Lock l(mParameters); 1268 if (l.mParameters.state < Parameters::PREVIEW) { 1269 ALOGE("%s: Camera %d: Call autoFocus when preview is inactive (state = %d).", 1270 __FUNCTION__, mCameraId, l.mParameters.state); 1271 return INVALID_OPERATION; 1272 } 1273 1274 /** 1275 * If the camera does not support auto-focus, it is a no-op and 1276 * onAutoFocus(boolean, Camera) callback will be called immediately 1277 * with a fake value of success set to true. 1278 * 1279 * Similarly, if focus mode is set to INFINITY, there's no reason to 1280 * bother the HAL. 1281 */ 1282 if (l.mParameters.focusMode == Parameters::FOCUS_MODE_FIXED || 1283 l.mParameters.focusMode == Parameters::FOCUS_MODE_INFINITY) { 1284 notifyImmediately = true; 1285 notifySuccess = true; 1286 } 1287 /** 1288 * If we're in CAF mode, and AF has already been locked, just fire back 1289 * the callback right away; the HAL would not send a notification since 1290 * no state change would happen on a AF trigger. 1291 */ 1292 if ( (l.mParameters.focusMode == Parameters::FOCUS_MODE_CONTINUOUS_PICTURE || 1293 l.mParameters.focusMode == Parameters::FOCUS_MODE_CONTINUOUS_VIDEO) && 1294 l.mParameters.focusState == ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED ) { 1295 notifyImmediately = true; 1296 notifySuccess = true; 1297 } 1298 /** 1299 * Send immediate notification back to client 1300 */ 1301 if (notifyImmediately) { 1302 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1303 if (l.mRemoteCallback != 0) { 1304 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS, 1305 notifySuccess ? 1 : 0, 0); 1306 } 1307 return OK; 1308 } 1309 /** 1310 * Handle quirk mode for AF in scene modes 1311 */ 1312 if (l.mParameters.quirks.triggerAfWithAuto && 1313 l.mParameters.sceneMode != ANDROID_CONTROL_SCENE_MODE_DISABLED && 1314 l.mParameters.focusMode != Parameters::FOCUS_MODE_AUTO && 1315 !l.mParameters.focusingAreas[0].isEmpty()) { 1316 ALOGV("%s: Quirk: Switching from focusMode %d to AUTO", 1317 __FUNCTION__, l.mParameters.focusMode); 1318 l.mParameters.shadowFocusMode = l.mParameters.focusMode; 1319 l.mParameters.focusMode = Parameters::FOCUS_MODE_AUTO; 1320 updateRequests(l.mParameters); 1321 } 1322 1323 l.mParameters.currentAfTriggerId = ++l.mParameters.afTriggerCounter; 1324 triggerId = l.mParameters.currentAfTriggerId; 1325 } 1326 ATRACE_ASYNC_BEGIN(kAutofocusLabel, triggerId); 1327 1328 syncWithDevice(); 1329 1330 mDevice->triggerAutofocus(triggerId); 1331 1332 return OK; 1333} 1334 1335status_t Camera2Client::cancelAutoFocus() { 1336 ATRACE_CALL(); 1337 Mutex::Autolock icl(mBinderSerializationLock); 1338 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1339 status_t res; 1340 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1341 1342 int triggerId; 1343 { 1344 SharedParameters::Lock l(mParameters); 1345 // Canceling does nothing in FIXED or INFINITY modes 1346 if (l.mParameters.focusMode == Parameters::FOCUS_MODE_FIXED || 1347 l.mParameters.focusMode == Parameters::FOCUS_MODE_INFINITY) { 1348 return OK; 1349 } 1350 1351 // An active AF trigger is canceled 1352 if (l.mParameters.afTriggerCounter == l.mParameters.currentAfTriggerId) { 1353 ATRACE_ASYNC_END(kAutofocusLabel, l.mParameters.currentAfTriggerId); 1354 } 1355 1356 triggerId = ++l.mParameters.afTriggerCounter; 1357 1358 // When using triggerAfWithAuto quirk, may need to reset focus mode to 1359 // the real state at this point. No need to cancel explicitly if 1360 // changing the AF mode. 1361 if (l.mParameters.shadowFocusMode != Parameters::FOCUS_MODE_INVALID) { 1362 ALOGV("%s: Quirk: Restoring focus mode to %d", __FUNCTION__, 1363 l.mParameters.shadowFocusMode); 1364 l.mParameters.focusMode = l.mParameters.shadowFocusMode; 1365 l.mParameters.shadowFocusMode = Parameters::FOCUS_MODE_INVALID; 1366 updateRequests(l.mParameters); 1367 1368 return OK; 1369 } 1370 if (l.mParameters.zslMode) { 1371 mZslProcessor->clearZslQueue(); 1372 } 1373 } 1374 syncWithDevice(); 1375 1376 mDevice->triggerCancelAutofocus(triggerId); 1377 1378 return OK; 1379} 1380 1381status_t Camera2Client::takePicture(int msgType) { 1382 ATRACE_CALL(); 1383 Mutex::Autolock icl(mBinderSerializationLock); 1384 status_t res; 1385 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1386 1387 int takePictureCounter; 1388 { 1389 SharedParameters::Lock l(mParameters); 1390 switch (l.mParameters.state) { 1391 case Parameters::DISCONNECTED: 1392 case Parameters::STOPPED: 1393 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 1394 ALOGE("%s: Camera %d: Cannot take picture without preview enabled", 1395 __FUNCTION__, mCameraId); 1396 return INVALID_OPERATION; 1397 case Parameters::PREVIEW: 1398 // Good to go for takePicture 1399 res = commandStopFaceDetectionL(l.mParameters); 1400 if (res != OK) { 1401 ALOGE("%s: Camera %d: Unable to stop face detection for still capture", 1402 __FUNCTION__, mCameraId); 1403 return res; 1404 } 1405 l.mParameters.state = Parameters::STILL_CAPTURE; 1406 1407 // Remove recording stream to prevent video snapshot jpeg logic kicking in 1408 if (l.mParameters.isJpegSizeOverridden() && 1409 mStreamingProcessor->getRecordingStreamId() != NO_STREAM) { 1410 res = mStreamingProcessor->togglePauseStream(/*pause*/true); 1411 if (res != OK) { 1412 ALOGE("%s: Camera %d: Can't pause streaming: %s (%d)", 1413 __FUNCTION__, mCameraId, strerror(-res), res); 1414 } 1415 res = mDevice->waitUntilDrained(); 1416 if (res != OK) { 1417 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 1418 __FUNCTION__, mCameraId, strerror(-res), res); 1419 } 1420 // Clean up recording stream 1421 res = mStreamingProcessor->deleteRecordingStream(); 1422 if (res != OK) { 1423 ALOGE("%s: Camera %d: Unable to delete recording stream before " 1424 "stop preview: %s (%d)", 1425 __FUNCTION__, mCameraId, strerror(-res), res); 1426 } 1427 res = mStreamingProcessor->togglePauseStream(/*pause*/false); 1428 if (res != OK) { 1429 ALOGE("%s: Camera %d: Can't unpause streaming: %s (%d)", 1430 __FUNCTION__, mCameraId, strerror(-res), res); 1431 } 1432 l.mParameters.recoverOverriddenJpegSize(); 1433 } 1434 break; 1435 case Parameters::RECORD: 1436 // Good to go for video snapshot 1437 l.mParameters.state = Parameters::VIDEO_SNAPSHOT; 1438 break; 1439 case Parameters::STILL_CAPTURE: 1440 case Parameters::VIDEO_SNAPSHOT: 1441 ALOGE("%s: Camera %d: Already taking a picture", 1442 __FUNCTION__, mCameraId); 1443 return INVALID_OPERATION; 1444 } 1445 1446 ALOGV("%s: Camera %d: Starting picture capture", __FUNCTION__, mCameraId); 1447 1448 int lastJpegStreamId = mJpegProcessor->getStreamId(); 1449 res = updateProcessorStream(mJpegProcessor, l.mParameters); 1450 // If video snapshot fail to configureStream, try override video snapshot size to 1451 // video size 1452 if (res == BAD_VALUE && l.mParameters.state == Parameters::VIDEO_SNAPSHOT) { 1453 overrideVideoSnapshotSize(l.mParameters); 1454 res = updateProcessorStream(mJpegProcessor, l.mParameters); 1455 } 1456 if (res != OK) { 1457 ALOGE("%s: Camera %d: Can't set up still image stream: %s (%d)", 1458 __FUNCTION__, mCameraId, strerror(-res), res); 1459 return res; 1460 } 1461 takePictureCounter = ++l.mParameters.takePictureCounter; 1462 1463 // Clear ZSL buffer queue when Jpeg size is changed. 1464 bool jpegStreamChanged = mJpegProcessor->getStreamId() != lastJpegStreamId; 1465 if (l.mParameters.zslMode && jpegStreamChanged) { 1466 ALOGV("%s: Camera %d: Clear ZSL buffer queue when Jpeg size is changed", 1467 __FUNCTION__, mCameraId); 1468 mZslProcessor->clearZslQueue(); 1469 } 1470 } 1471 1472 ATRACE_ASYNC_BEGIN(kTakepictureLabel, takePictureCounter); 1473 1474 // Need HAL to have correct settings before (possibly) triggering precapture 1475 syncWithDevice(); 1476 1477 res = mCaptureSequencer->startCapture(msgType); 1478 if (res != OK) { 1479 ALOGE("%s: Camera %d: Unable to start capture: %s (%d)", 1480 __FUNCTION__, mCameraId, strerror(-res), res); 1481 } 1482 1483 return res; 1484} 1485 1486status_t Camera2Client::setParameters(const String8& params) { 1487 ATRACE_CALL(); 1488 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1489 Mutex::Autolock icl(mBinderSerializationLock); 1490 status_t res; 1491 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1492 1493 SharedParameters::Lock l(mParameters); 1494 1495 Parameters::focusMode_t focusModeBefore = l.mParameters.focusMode; 1496 res = l.mParameters.set(params); 1497 if (res != OK) return res; 1498 Parameters::focusMode_t focusModeAfter = l.mParameters.focusMode; 1499 1500 if (l.mParameters.zslMode && focusModeAfter != focusModeBefore) { 1501 mZslProcessor->clearZslQueue(); 1502 } 1503 1504 res = updateRequests(l.mParameters); 1505 1506 return res; 1507} 1508 1509String8 Camera2Client::getParameters() const { 1510 ATRACE_CALL(); 1511 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1512 Mutex::Autolock icl(mBinderSerializationLock); 1513 // The camera service can unconditionally get the parameters at all times 1514 if (getCallingPid() != mServicePid && checkPid(__FUNCTION__) != OK) return String8(); 1515 1516 SharedParameters::ReadLock l(mParameters); 1517 1518 return l.mParameters.get(); 1519} 1520 1521status_t Camera2Client::sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) { 1522 ATRACE_CALL(); 1523 Mutex::Autolock icl(mBinderSerializationLock); 1524 status_t res; 1525 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1526 1527 ALOGV("%s: Camera %d: Command %d (%d, %d)", __FUNCTION__, mCameraId, 1528 cmd, arg1, arg2); 1529 1530 switch (cmd) { 1531 case CAMERA_CMD_START_SMOOTH_ZOOM: 1532 return commandStartSmoothZoomL(); 1533 case CAMERA_CMD_STOP_SMOOTH_ZOOM: 1534 return commandStopSmoothZoomL(); 1535 case CAMERA_CMD_SET_DISPLAY_ORIENTATION: 1536 return commandSetDisplayOrientationL(arg1); 1537 case CAMERA_CMD_ENABLE_SHUTTER_SOUND: 1538 return commandEnableShutterSoundL(arg1 == 1); 1539 case CAMERA_CMD_PLAY_RECORDING_SOUND: 1540 return commandPlayRecordingSoundL(); 1541 case CAMERA_CMD_START_FACE_DETECTION: 1542 return commandStartFaceDetectionL(arg1); 1543 case CAMERA_CMD_STOP_FACE_DETECTION: { 1544 SharedParameters::Lock l(mParameters); 1545 return commandStopFaceDetectionL(l.mParameters); 1546 } 1547 case CAMERA_CMD_ENABLE_FOCUS_MOVE_MSG: 1548 return commandEnableFocusMoveMsgL(arg1 == 1); 1549 case CAMERA_CMD_PING: 1550 return commandPingL(); 1551 case CAMERA_CMD_SET_VIDEO_BUFFER_COUNT: 1552 return commandSetVideoBufferCountL(arg1); 1553 default: 1554 ALOGE("%s: Unknown command %d (arguments %d, %d)", 1555 __FUNCTION__, cmd, arg1, arg2); 1556 return BAD_VALUE; 1557 } 1558} 1559 1560status_t Camera2Client::commandStartSmoothZoomL() { 1561 ALOGE("%s: Unimplemented!", __FUNCTION__); 1562 return OK; 1563} 1564 1565status_t Camera2Client::commandStopSmoothZoomL() { 1566 ALOGE("%s: Unimplemented!", __FUNCTION__); 1567 return OK; 1568} 1569 1570status_t Camera2Client::commandSetDisplayOrientationL(int degrees) { 1571 int transform = Parameters::degToTransform(degrees, 1572 mCameraFacing == CAMERA_FACING_FRONT); 1573 if (transform == -1) { 1574 ALOGE("%s: Camera %d: Error setting %d as display orientation value", 1575 __FUNCTION__, mCameraId, degrees); 1576 return BAD_VALUE; 1577 } 1578 SharedParameters::Lock l(mParameters); 1579 if (transform != l.mParameters.previewTransform && 1580 getPreviewStreamId() != NO_STREAM) { 1581 mDevice->setStreamTransform(getPreviewStreamId(), transform); 1582 } 1583 l.mParameters.previewTransform = transform; 1584 return OK; 1585} 1586 1587status_t Camera2Client::commandEnableShutterSoundL(bool enable) { 1588 SharedParameters::Lock l(mParameters); 1589 if (enable) { 1590 l.mParameters.playShutterSound = true; 1591 return OK; 1592 } 1593 1594 // the camera2 api legacy mode can unconditionally disable the shutter sound 1595 if (mLegacyMode) { 1596 ALOGV("%s: Disable shutter sound in legacy mode", __FUNCTION__); 1597 l.mParameters.playShutterSound = false; 1598 return OK; 1599 } 1600 1601 // Disabling shutter sound may not be allowed. In that case only 1602 // allow the mediaserver process to disable the sound. 1603 char value[PROPERTY_VALUE_MAX]; 1604 property_get("ro.camera.sound.forced", value, "0"); 1605 if (strncmp(value, "0", 2) != 0) { 1606 // Disabling shutter sound is not allowed. Deny if the current 1607 // process is not mediaserver. 1608 if (getCallingPid() != getpid()) { 1609 ALOGE("Failed to disable shutter sound. Permission denied (pid %d)", 1610 getCallingPid()); 1611 return PERMISSION_DENIED; 1612 } 1613 } 1614 1615 l.mParameters.playShutterSound = false; 1616 return OK; 1617} 1618 1619status_t Camera2Client::commandPlayRecordingSoundL() { 1620 mCameraService->playSound(CameraService::SOUND_RECORDING); 1621 return OK; 1622} 1623 1624status_t Camera2Client::commandStartFaceDetectionL(int /*type*/) { 1625 ALOGV("%s: Camera %d: Starting face detection", 1626 __FUNCTION__, mCameraId); 1627 status_t res; 1628 SharedParameters::Lock l(mParameters); 1629 switch (l.mParameters.state) { 1630 case Parameters::DISCONNECTED: 1631 case Parameters::STOPPED: 1632 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 1633 case Parameters::STILL_CAPTURE: 1634 ALOGE("%s: Camera %d: Cannot start face detection without preview active", 1635 __FUNCTION__, mCameraId); 1636 return INVALID_OPERATION; 1637 case Parameters::PREVIEW: 1638 case Parameters::RECORD: 1639 case Parameters::VIDEO_SNAPSHOT: 1640 // Good to go for starting face detect 1641 break; 1642 } 1643 // Ignoring type 1644 if (l.mParameters.fastInfo.bestFaceDetectMode == 1645 ANDROID_STATISTICS_FACE_DETECT_MODE_OFF) { 1646 ALOGE("%s: Camera %d: Face detection not supported", 1647 __FUNCTION__, mCameraId); 1648 return BAD_VALUE; 1649 } 1650 if (l.mParameters.enableFaceDetect) return OK; 1651 1652 l.mParameters.enableFaceDetect = true; 1653 1654 res = updateRequests(l.mParameters); 1655 1656 return res; 1657} 1658 1659status_t Camera2Client::commandStopFaceDetectionL(Parameters ¶ms) { 1660 status_t res = OK; 1661 ALOGV("%s: Camera %d: Stopping face detection", 1662 __FUNCTION__, mCameraId); 1663 1664 if (!params.enableFaceDetect) return OK; 1665 1666 params.enableFaceDetect = false; 1667 1668 if (params.state == Parameters::PREVIEW 1669 || params.state == Parameters::RECORD 1670 || params.state == Parameters::VIDEO_SNAPSHOT) { 1671 res = updateRequests(params); 1672 } 1673 1674 return res; 1675} 1676 1677status_t Camera2Client::commandEnableFocusMoveMsgL(bool enable) { 1678 SharedParameters::Lock l(mParameters); 1679 l.mParameters.enableFocusMoveMessages = enable; 1680 1681 return OK; 1682} 1683 1684status_t Camera2Client::commandPingL() { 1685 // Always ping back if access is proper and device is alive 1686 SharedParameters::Lock l(mParameters); 1687 if (l.mParameters.state != Parameters::DISCONNECTED) { 1688 return OK; 1689 } else { 1690 return NO_INIT; 1691 } 1692} 1693 1694status_t Camera2Client::commandSetVideoBufferCountL(size_t count) { 1695 if (recordingEnabledL()) { 1696 ALOGE("%s: Camera %d: Error setting video buffer count after " 1697 "recording was started", __FUNCTION__, mCameraId); 1698 return INVALID_OPERATION; 1699 } 1700 1701 return mStreamingProcessor->setRecordingBufferCount(count); 1702} 1703 1704/** Device-related methods */ 1705void Camera2Client::notifyAutoFocus(uint8_t newState, int triggerId) { 1706 ALOGV("%s: Autofocus state now %d, last trigger %d", 1707 __FUNCTION__, newState, triggerId); 1708 bool sendCompletedMessage = false; 1709 bool sendMovingMessage = false; 1710 1711 bool success = false; 1712 bool afInMotion = false; 1713 { 1714 SharedParameters::Lock l(mParameters); 1715 // Trace end of AF state 1716 char tmp[32]; 1717 if (l.mParameters.afStateCounter > 0) { 1718 camera_metadata_enum_snprint( 1719 ANDROID_CONTROL_AF_STATE, l.mParameters.focusState, tmp, sizeof(tmp)); 1720 ATRACE_ASYNC_END(tmp, l.mParameters.afStateCounter); 1721 } 1722 1723 // Update state 1724 l.mParameters.focusState = newState; 1725 l.mParameters.afStateCounter++; 1726 1727 // Trace start of AF state 1728 1729 camera_metadata_enum_snprint( 1730 ANDROID_CONTROL_AF_STATE, l.mParameters.focusState, tmp, sizeof(tmp)); 1731 ATRACE_ASYNC_BEGIN(tmp, l.mParameters.afStateCounter); 1732 1733 switch (l.mParameters.focusMode) { 1734 case Parameters::FOCUS_MODE_AUTO: 1735 case Parameters::FOCUS_MODE_MACRO: 1736 // Don't send notifications upstream if they're not for the current AF 1737 // trigger. For example, if cancel was called in between, or if we 1738 // already sent a notification about this AF call. 1739 if (triggerId != l.mParameters.currentAfTriggerId) break; 1740 switch (newState) { 1741 case ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED: 1742 success = true; 1743 // no break 1744 case ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED: 1745 sendCompletedMessage = true; 1746 l.mParameters.currentAfTriggerId = -1; 1747 break; 1748 case ANDROID_CONTROL_AF_STATE_ACTIVE_SCAN: 1749 // Just starting focusing, ignore 1750 break; 1751 case ANDROID_CONTROL_AF_STATE_INACTIVE: 1752 case ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN: 1753 case ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED: 1754 case ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED: 1755 default: 1756 // Unexpected in AUTO/MACRO mode 1757 ALOGE("%s: Unexpected AF state transition in AUTO/MACRO mode: %d", 1758 __FUNCTION__, newState); 1759 break; 1760 } 1761 break; 1762 case Parameters::FOCUS_MODE_CONTINUOUS_VIDEO: 1763 case Parameters::FOCUS_MODE_CONTINUOUS_PICTURE: 1764 switch (newState) { 1765 case ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED: 1766 success = true; 1767 // no break 1768 case ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED: 1769 // Don't send notifications upstream if they're not for 1770 // the current AF trigger. For example, if cancel was 1771 // called in between, or if we already sent a 1772 // notification about this AF call. 1773 // Send both a 'AF done' callback and a 'AF move' callback 1774 if (triggerId != l.mParameters.currentAfTriggerId) break; 1775 sendCompletedMessage = true; 1776 afInMotion = false; 1777 if (l.mParameters.enableFocusMoveMessages && 1778 l.mParameters.afInMotion) { 1779 sendMovingMessage = true; 1780 } 1781 l.mParameters.currentAfTriggerId = -1; 1782 break; 1783 case ANDROID_CONTROL_AF_STATE_INACTIVE: 1784 // Cancel was called, or we switched state; care if 1785 // currently moving 1786 afInMotion = false; 1787 if (l.mParameters.enableFocusMoveMessages && 1788 l.mParameters.afInMotion) { 1789 sendMovingMessage = true; 1790 } 1791 break; 1792 case ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN: 1793 // Start passive scan, inform upstream 1794 afInMotion = true; 1795 // no break 1796 case ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED: 1797 case ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED: 1798 // Stop passive scan, inform upstream 1799 if (l.mParameters.enableFocusMoveMessages) { 1800 sendMovingMessage = true; 1801 } 1802 break; 1803 } 1804 l.mParameters.afInMotion = afInMotion; 1805 break; 1806 case Parameters::FOCUS_MODE_EDOF: 1807 case Parameters::FOCUS_MODE_INFINITY: 1808 case Parameters::FOCUS_MODE_FIXED: 1809 default: 1810 if (newState != ANDROID_CONTROL_AF_STATE_INACTIVE) { 1811 ALOGE("%s: Unexpected AF state change %d " 1812 "(ID %d) in focus mode %d", 1813 __FUNCTION__, newState, triggerId, 1814 l.mParameters.focusMode); 1815 } 1816 } 1817 } 1818 if (sendMovingMessage) { 1819 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1820 if (l.mRemoteCallback != 0) { 1821 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS_MOVE, 1822 afInMotion ? 1 : 0, 0); 1823 } 1824 } 1825 if (sendCompletedMessage) { 1826 ATRACE_ASYNC_END(kAutofocusLabel, triggerId); 1827 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1828 if (l.mRemoteCallback != 0) { 1829 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS, 1830 success ? 1 : 0, 0); 1831 } 1832 } 1833} 1834 1835void Camera2Client::notifyAutoExposure(uint8_t newState, int triggerId) { 1836 ALOGV("%s: Autoexposure state now %d, last trigger %d", 1837 __FUNCTION__, newState, triggerId); 1838 mCaptureSequencer->notifyAutoExposure(newState, triggerId); 1839} 1840 1841camera2::SharedParameters& Camera2Client::getParameters() { 1842 return mParameters; 1843} 1844 1845int Camera2Client::getPreviewStreamId() const { 1846 return mStreamingProcessor->getPreviewStreamId(); 1847} 1848 1849int Camera2Client::getCaptureStreamId() const { 1850 return mJpegProcessor->getStreamId(); 1851} 1852 1853int Camera2Client::getCallbackStreamId() const { 1854 return mCallbackProcessor->getStreamId(); 1855} 1856 1857int Camera2Client::getRecordingStreamId() const { 1858 return mStreamingProcessor->getRecordingStreamId(); 1859} 1860 1861int Camera2Client::getZslStreamId() const { 1862 return mZslProcessor->getStreamId(); 1863} 1864 1865status_t Camera2Client::registerFrameListener(int32_t minId, int32_t maxId, 1866 wp<camera2::FrameProcessor::FilteredListener> listener, bool sendPartials) { 1867 return mFrameProcessor->registerListener(minId, maxId, listener, sendPartials); 1868} 1869 1870status_t Camera2Client::removeFrameListener(int32_t minId, int32_t maxId, 1871 wp<camera2::FrameProcessor::FilteredListener> listener) { 1872 return mFrameProcessor->removeListener(minId, maxId, listener); 1873} 1874 1875status_t Camera2Client::stopStream() { 1876 return mStreamingProcessor->stopStream(); 1877} 1878 1879const int32_t Camera2Client::kPreviewRequestIdStart; 1880const int32_t Camera2Client::kPreviewRequestIdEnd; 1881const int32_t Camera2Client::kRecordingRequestIdStart; 1882const int32_t Camera2Client::kRecordingRequestIdEnd; 1883const int32_t Camera2Client::kCaptureRequestIdStart; 1884const int32_t Camera2Client::kCaptureRequestIdEnd; 1885 1886/** Utility methods */ 1887 1888status_t Camera2Client::updateRequests(Parameters ¶ms) { 1889 status_t res; 1890 1891 ALOGV("%s: Camera %d: state = %d", __FUNCTION__, getCameraId(), params.state); 1892 1893 res = mStreamingProcessor->incrementStreamingIds(); 1894 if (res != OK) { 1895 ALOGE("%s: Camera %d: Unable to increment request IDs: %s (%d)", 1896 __FUNCTION__, mCameraId, strerror(-res), res); 1897 return res; 1898 } 1899 1900 res = mStreamingProcessor->updatePreviewRequest(params); 1901 if (res != OK) { 1902 ALOGE("%s: Camera %d: Unable to update preview request: %s (%d)", 1903 __FUNCTION__, mCameraId, strerror(-res), res); 1904 return res; 1905 } 1906 res = mStreamingProcessor->updateRecordingRequest(params); 1907 if (res != OK) { 1908 ALOGE("%s: Camera %d: Unable to update recording request: %s (%d)", 1909 __FUNCTION__, mCameraId, strerror(-res), res); 1910 return res; 1911 } 1912 1913 if (params.state == Parameters::PREVIEW) { 1914 res = startPreviewL(params, true); 1915 if (res != OK) { 1916 ALOGE("%s: Camera %d: Error streaming new preview request: %s (%d)", 1917 __FUNCTION__, mCameraId, strerror(-res), res); 1918 return res; 1919 } 1920 } else if (params.state == Parameters::RECORD || 1921 params.state == Parameters::VIDEO_SNAPSHOT) { 1922 res = startRecordingL(params, true); 1923 if (res != OK) { 1924 ALOGE("%s: Camera %d: Error streaming new record request: %s (%d)", 1925 __FUNCTION__, mCameraId, strerror(-res), res); 1926 return res; 1927 } 1928 } 1929 return res; 1930} 1931 1932 1933size_t Camera2Client::calculateBufferSize(int width, int height, 1934 int format, int stride) { 1935 switch (format) { 1936 case HAL_PIXEL_FORMAT_YCbCr_422_SP: // NV16 1937 return width * height * 2; 1938 case HAL_PIXEL_FORMAT_YCrCb_420_SP: // NV21 1939 return width * height * 3 / 2; 1940 case HAL_PIXEL_FORMAT_YCbCr_422_I: // YUY2 1941 return width * height * 2; 1942 case HAL_PIXEL_FORMAT_YV12: { // YV12 1943 size_t ySize = stride * height; 1944 size_t uvStride = (stride / 2 + 0xF) & ~0xF; 1945 size_t uvSize = uvStride * height / 2; 1946 return ySize + uvSize * 2; 1947 } 1948 case HAL_PIXEL_FORMAT_RGB_565: 1949 return width * height * 2; 1950 case HAL_PIXEL_FORMAT_RGBA_8888: 1951 return width * height * 4; 1952 case HAL_PIXEL_FORMAT_RAW_SENSOR: 1953 return width * height * 2; 1954 default: 1955 ALOGE("%s: Unknown preview format: %x", 1956 __FUNCTION__, format); 1957 return 0; 1958 } 1959} 1960 1961status_t Camera2Client::syncWithDevice() { 1962 ATRACE_CALL(); 1963 const nsecs_t kMaxSyncTimeout = 500000000; // 500 ms 1964 status_t res; 1965 1966 int32_t activeRequestId = mStreamingProcessor->getActiveRequestId(); 1967 if (activeRequestId == 0) return OK; 1968 1969 res = mDevice->waitUntilRequestReceived(activeRequestId, kMaxSyncTimeout); 1970 if (res == TIMED_OUT) { 1971 ALOGE("%s: Camera %d: Timed out waiting sync with HAL", 1972 __FUNCTION__, mCameraId); 1973 } else if (res != OK) { 1974 ALOGE("%s: Camera %d: Error while waiting to sync with HAL", 1975 __FUNCTION__, mCameraId); 1976 } 1977 return res; 1978} 1979 1980template <typename ProcessorT> 1981status_t Camera2Client::updateProcessorStream(sp<ProcessorT> processor, 1982 camera2::Parameters params) { 1983 // No default template arguments until C++11, so we need this overload 1984 return updateProcessorStream<ProcessorT, &ProcessorT::updateStream>( 1985 processor, params); 1986} 1987 1988template <typename ProcessorT, 1989 status_t (ProcessorT::*updateStreamF)(const Parameters &)> 1990status_t Camera2Client::updateProcessorStream(sp<ProcessorT> processor, 1991 Parameters params) { 1992 status_t res; 1993 1994 // Get raw pointer since sp<T> doesn't have operator->* 1995 ProcessorT *processorPtr = processor.get(); 1996 res = (processorPtr->*updateStreamF)(params); 1997 1998 /** 1999 * Can't update the stream if it's busy? 2000 * 2001 * Then we need to stop the device (by temporarily clearing the request 2002 * queue) and then try again. Resume streaming once we're done. 2003 */ 2004 if (res == -EBUSY) { 2005 ALOGV("%s: Camera %d: Pausing to update stream", __FUNCTION__, 2006 mCameraId); 2007 res = mStreamingProcessor->togglePauseStream(/*pause*/true); 2008 if (res != OK) { 2009 ALOGE("%s: Camera %d: Can't pause streaming: %s (%d)", 2010 __FUNCTION__, mCameraId, strerror(-res), res); 2011 } 2012 2013 res = mDevice->waitUntilDrained(); 2014 if (res != OK) { 2015 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 2016 __FUNCTION__, mCameraId, strerror(-res), res); 2017 } 2018 2019 res = (processorPtr->*updateStreamF)(params); 2020 if (res != OK) { 2021 ALOGE("%s: Camera %d: Failed to update processing stream " 2022 " despite having halted streaming first: %s (%d)", 2023 __FUNCTION__, mCameraId, strerror(-res), res); 2024 } 2025 2026 res = mStreamingProcessor->togglePauseStream(/*pause*/false); 2027 if (res != OK) { 2028 ALOGE("%s: Camera %d: Can't unpause streaming: %s (%d)", 2029 __FUNCTION__, mCameraId, strerror(-res), res); 2030 } 2031 } 2032 2033 return res; 2034} 2035 2036status_t Camera2Client::overrideVideoSnapshotSize(Parameters ¶ms) { 2037 ALOGV("%s: Camera %d: configure still size to video size before recording" 2038 , __FUNCTION__, mCameraId); 2039 params.overrideJpegSizeByVideoSize(); 2040 status_t res = updateProcessorStream(mJpegProcessor, params); 2041 if (res != OK) { 2042 ALOGE("%s: Camera %d: Can't override video snapshot size to video size: %s (%d)", 2043 __FUNCTION__, mCameraId, strerror(-res), res); 2044 } 2045 return res; 2046} 2047 2048const char* Camera2Client::kAutofocusLabel = "autofocus"; 2049const char* Camera2Client::kTakepictureLabel = "take_picture"; 2050 2051} // namespace android 2052