Camera2Client.cpp revision 377b2ec9a2885f9b6405b07ba900a9e3f4349c38
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 int deviceVersion): 58 Camera2ClientBase(cameraService, cameraClient, clientPackageName, 59 cameraId, cameraFacing, clientPid, clientUid, servicePid), 60 mParameters(cameraId, cameraFacing), 61 mDeviceVersion(deviceVersion) 62{ 63 ATRACE_CALL(); 64 65 SharedParameters::Lock l(mParameters); 66 l.mParameters.state = Parameters::DISCONNECTED; 67} 68 69status_t Camera2Client::initialize(camera_module_t *module) 70{ 71 ATRACE_CALL(); 72 ALOGV("%s: Initializing client for camera %d", __FUNCTION__, mCameraId); 73 status_t res; 74 75 res = Camera2ClientBase::initialize(module); 76 if (res != OK) { 77 return res; 78 } 79 80 { 81 SharedParameters::Lock l(mParameters); 82 83 res = l.mParameters.initialize(&(mDevice->info())); 84 if (res != OK) { 85 ALOGE("%s: Camera %d: unable to build defaults: %s (%d)", 86 __FUNCTION__, mCameraId, strerror(-res), res); 87 return NO_INIT; 88 } 89 } 90 91 String8 threadName; 92 93 mStreamingProcessor = new StreamingProcessor(this); 94 threadName = String8::format("C2-%d-StreamProc", 95 mCameraId); 96 mStreamingProcessor->run(threadName.string()); 97 98 mFrameProcessor = new FrameProcessor(mDevice, this); 99 threadName = String8::format("C2-%d-FrameProc", 100 mCameraId); 101 mFrameProcessor->run(threadName.string()); 102 103 mCaptureSequencer = new CaptureSequencer(this); 104 threadName = String8::format("C2-%d-CaptureSeq", 105 mCameraId); 106 mCaptureSequencer->run(threadName.string()); 107 108 mJpegProcessor = new JpegProcessor(this, mCaptureSequencer); 109 threadName = String8::format("C2-%d-JpegProc", 110 mCameraId); 111 mJpegProcessor->run(threadName.string()); 112 113 switch (mDeviceVersion) { 114 case CAMERA_DEVICE_API_VERSION_2_0: { 115 sp<ZslProcessor> zslProc = 116 new ZslProcessor(this, mCaptureSequencer); 117 mZslProcessor = zslProc; 118 mZslProcessorThread = zslProc; 119 break; 120 } 121 case CAMERA_DEVICE_API_VERSION_3_0:{ 122 sp<ZslProcessor3> zslProc = 123 new ZslProcessor3(this, mCaptureSequencer); 124 mZslProcessor = zslProc; 125 mZslProcessorThread = zslProc; 126 break; 127 } 128 default: 129 break; 130 } 131 threadName = String8::format("C2-%d-ZslProc", 132 mCameraId); 133 mZslProcessorThread->run(threadName.string()); 134 135 mCallbackProcessor = new CallbackProcessor(this); 136 threadName = String8::format("C2-%d-CallbkProc", 137 mCameraId); 138 mCallbackProcessor->run(threadName.string()); 139 140 if (gLogLevel >= 1) { 141 SharedParameters::Lock l(mParameters); 142 ALOGD("%s: Default parameters converted from camera %d:", __FUNCTION__, 143 mCameraId); 144 ALOGD("%s", l.mParameters.paramsFlattened.string()); 145 } 146 147 return OK; 148} 149 150Camera2Client::~Camera2Client() { 151 ATRACE_CALL(); 152 ALOGV("~Camera2Client"); 153 154 mDestructionStarted = true; 155 156 disconnect(); 157 158 ALOGI("Camera %d: Closed", mCameraId); 159} 160 161status_t Camera2Client::dump(int fd, const Vector<String16>& args) { 162 String8 result; 163 result.appendFormat("Client2[%d] (%p) Client: %s PID: %d, dump:\n", 164 mCameraId, 165 getRemoteCallback()->asBinder().get(), 166 String8(mClientPackageName).string(), 167 mClientPid); 168 result.append(" State: "); 169#define CASE_APPEND_ENUM(x) case x: result.append(#x "\n"); break; 170 171 const Parameters& p = mParameters.unsafeAccess(); 172 173 result.append(Parameters::getStateName(p.state)); 174 175 result.append("\n Current parameters:\n"); 176 result.appendFormat(" Preview size: %d x %d\n", 177 p.previewWidth, p.previewHeight); 178 result.appendFormat(" Preview FPS range: %d - %d\n", 179 p.previewFpsRange[0], p.previewFpsRange[1]); 180 result.appendFormat(" Preview HAL pixel format: 0x%x\n", 181 p.previewFormat); 182 result.appendFormat(" Preview transform: %x\n", 183 p.previewTransform); 184 result.appendFormat(" Picture size: %d x %d\n", 185 p.pictureWidth, p.pictureHeight); 186 result.appendFormat(" Jpeg thumbnail size: %d x %d\n", 187 p.jpegThumbSize[0], p.jpegThumbSize[1]); 188 result.appendFormat(" Jpeg quality: %d, thumbnail quality: %d\n", 189 p.jpegQuality, p.jpegThumbQuality); 190 result.appendFormat(" Jpeg rotation: %d\n", p.jpegRotation); 191 result.appendFormat(" GPS tags %s\n", 192 p.gpsEnabled ? "enabled" : "disabled"); 193 if (p.gpsEnabled) { 194 result.appendFormat(" GPS lat x long x alt: %f x %f x %f\n", 195 p.gpsCoordinates[0], p.gpsCoordinates[1], 196 p.gpsCoordinates[2]); 197 result.appendFormat(" GPS timestamp: %" PRId64 "\n", 198 p.gpsTimestamp); 199 result.appendFormat(" GPS processing method: %s\n", 200 p.gpsProcessingMethod.string()); 201 } 202 203 result.append(" White balance mode: "); 204 switch (p.wbMode) { 205 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_AUTO) 206 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_INCANDESCENT) 207 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_FLUORESCENT) 208 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_WARM_FLUORESCENT) 209 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_DAYLIGHT) 210 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_CLOUDY_DAYLIGHT) 211 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_TWILIGHT) 212 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_SHADE) 213 default: result.append("UNKNOWN\n"); 214 } 215 216 result.append(" Effect mode: "); 217 switch (p.effectMode) { 218 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_OFF) 219 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_MONO) 220 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_NEGATIVE) 221 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_SOLARIZE) 222 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_SEPIA) 223 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_POSTERIZE) 224 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_WHITEBOARD) 225 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_BLACKBOARD) 226 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_AQUA) 227 default: result.append("UNKNOWN\n"); 228 } 229 230 result.append(" Antibanding mode: "); 231 switch (p.antibandingMode) { 232 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_AUTO) 233 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_OFF) 234 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_50HZ) 235 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_60HZ) 236 default: result.append("UNKNOWN\n"); 237 } 238 239 result.append(" Scene mode: "); 240 switch (p.sceneMode) { 241 case ANDROID_CONTROL_SCENE_MODE_UNSUPPORTED: 242 result.append("AUTO\n"); break; 243 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_ACTION) 244 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_PORTRAIT) 245 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_LANDSCAPE) 246 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_NIGHT) 247 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_NIGHT_PORTRAIT) 248 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_THEATRE) 249 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_BEACH) 250 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SNOW) 251 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SUNSET) 252 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_STEADYPHOTO) 253 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_FIREWORKS) 254 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SPORTS) 255 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_PARTY) 256 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_CANDLELIGHT) 257 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_BARCODE) 258 default: result.append("UNKNOWN\n"); 259 } 260 261 result.append(" Flash mode: "); 262 switch (p.flashMode) { 263 CASE_APPEND_ENUM(Parameters::FLASH_MODE_OFF) 264 CASE_APPEND_ENUM(Parameters::FLASH_MODE_AUTO) 265 CASE_APPEND_ENUM(Parameters::FLASH_MODE_ON) 266 CASE_APPEND_ENUM(Parameters::FLASH_MODE_TORCH) 267 CASE_APPEND_ENUM(Parameters::FLASH_MODE_RED_EYE) 268 CASE_APPEND_ENUM(Parameters::FLASH_MODE_INVALID) 269 default: result.append("UNKNOWN\n"); 270 } 271 272 result.append(" Focus mode: "); 273 switch (p.focusMode) { 274 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_AUTO) 275 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_MACRO) 276 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_CONTINUOUS_VIDEO) 277 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_CONTINUOUS_PICTURE) 278 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_EDOF) 279 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_INFINITY) 280 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_FIXED) 281 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_INVALID) 282 default: result.append("UNKNOWN\n"); 283 } 284 285 result.append(" Focus state: "); 286 switch (p.focusState) { 287 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_INACTIVE) 288 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN) 289 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED) 290 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED) 291 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_ACTIVE_SCAN) 292 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED) 293 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED) 294 default: result.append("UNKNOWN\n"); 295 } 296 297 result.append(" Focusing areas:\n"); 298 for (size_t i = 0; i < p.focusingAreas.size(); i++) { 299 result.appendFormat(" [ (%d, %d, %d, %d), weight %d ]\n", 300 p.focusingAreas[i].left, 301 p.focusingAreas[i].top, 302 p.focusingAreas[i].right, 303 p.focusingAreas[i].bottom, 304 p.focusingAreas[i].weight); 305 } 306 307 result.appendFormat(" Exposure compensation index: %d\n", 308 p.exposureCompensation); 309 310 result.appendFormat(" AE lock %s, AWB lock %s\n", 311 p.autoExposureLock ? "enabled" : "disabled", 312 p.autoWhiteBalanceLock ? "enabled" : "disabled" ); 313 314 result.appendFormat(" Metering areas:\n"); 315 for (size_t i = 0; i < p.meteringAreas.size(); i++) { 316 result.appendFormat(" [ (%d, %d, %d, %d), weight %d ]\n", 317 p.meteringAreas[i].left, 318 p.meteringAreas[i].top, 319 p.meteringAreas[i].right, 320 p.meteringAreas[i].bottom, 321 p.meteringAreas[i].weight); 322 } 323 324 result.appendFormat(" Zoom index: %d\n", p.zoom); 325 result.appendFormat(" Video size: %d x %d\n", p.videoWidth, 326 p.videoHeight); 327 328 result.appendFormat(" Recording hint is %s\n", 329 p.recordingHint ? "set" : "not set"); 330 331 result.appendFormat(" Video stabilization is %s\n", 332 p.videoStabilization ? "enabled" : "disabled"); 333 334 result.appendFormat(" Selected still capture FPS range: %d - %d\n", 335 p.fastInfo.bestStillCaptureFpsRange[0], 336 p.fastInfo.bestStillCaptureFpsRange[1]); 337 338 result.append(" Current streams:\n"); 339 result.appendFormat(" Preview stream ID: %d\n", 340 getPreviewStreamId()); 341 result.appendFormat(" Capture stream ID: %d\n", 342 getCaptureStreamId()); 343 result.appendFormat(" Recording stream ID: %d\n", 344 getRecordingStreamId()); 345 346 result.append(" Quirks for this camera:\n"); 347 bool haveQuirk = false; 348 if (p.quirks.triggerAfWithAuto) { 349 result.appendFormat(" triggerAfWithAuto\n"); 350 haveQuirk = true; 351 } 352 if (p.quirks.useZslFormat) { 353 result.appendFormat(" useZslFormat\n"); 354 haveQuirk = true; 355 } 356 if (p.quirks.meteringCropRegion) { 357 result.appendFormat(" meteringCropRegion\n"); 358 haveQuirk = true; 359 } 360 if (p.quirks.partialResults) { 361 result.appendFormat(" usePartialResult\n"); 362 haveQuirk = true; 363 } 364 if (!haveQuirk) { 365 result.appendFormat(" none\n"); 366 } 367 368 write(fd, result.string(), result.size()); 369 370 mStreamingProcessor->dump(fd, args); 371 372 mCaptureSequencer->dump(fd, args); 373 374 mFrameProcessor->dump(fd, args); 375 376 mZslProcessor->dump(fd, args); 377 378 return dumpDevice(fd, args); 379#undef CASE_APPEND_ENUM 380} 381 382// ICamera interface 383 384void Camera2Client::disconnect() { 385 ATRACE_CALL(); 386 Mutex::Autolock icl(mBinderSerializationLock); 387 388 // Allow both client and the media server to disconnect at all times 389 int callingPid = getCallingPid(); 390 if (callingPid != mClientPid && callingPid != mServicePid) return; 391 392 if (mDevice == 0) return; 393 394 ALOGV("Camera %d: Shutting down", mCameraId); 395 396 /** 397 * disconnect() cannot call any methods that might need to promote a 398 * wp<Camera2Client>, since disconnect can be called from the destructor, at 399 * which point all such promotions will fail. 400 */ 401 402 stopPreviewL(); 403 404 { 405 SharedParameters::Lock l(mParameters); 406 if (l.mParameters.state == Parameters::DISCONNECTED) return; 407 l.mParameters.state = Parameters::DISCONNECTED; 408 } 409 410 mStreamingProcessor->deletePreviewStream(); 411 mStreamingProcessor->deleteRecordingStream(); 412 mJpegProcessor->deleteStream(); 413 mCallbackProcessor->deleteStream(); 414 mZslProcessor->deleteStream(); 415 416 mStreamingProcessor->requestExit(); 417 mFrameProcessor->requestExit(); 418 mCaptureSequencer->requestExit(); 419 mJpegProcessor->requestExit(); 420 mZslProcessorThread->requestExit(); 421 mCallbackProcessor->requestExit(); 422 423 ALOGV("Camera %d: Waiting for threads", mCameraId); 424 425 mStreamingProcessor->join(); 426 mFrameProcessor->join(); 427 mCaptureSequencer->join(); 428 mJpegProcessor->join(); 429 mZslProcessorThread->join(); 430 mCallbackProcessor->join(); 431 432 ALOGV("Camera %d: Disconnecting device", mCameraId); 433 434 mDevice->disconnect(); 435 436 mDevice.clear(); 437 438 CameraService::Client::disconnect(); 439} 440 441status_t Camera2Client::connect(const sp<ICameraClient>& client) { 442 ATRACE_CALL(); 443 ALOGV("%s: E", __FUNCTION__); 444 Mutex::Autolock icl(mBinderSerializationLock); 445 446 if (mClientPid != 0 && getCallingPid() != mClientPid) { 447 ALOGE("%s: Camera %d: Connection attempt from pid %d; " 448 "current locked to pid %d", __FUNCTION__, 449 mCameraId, getCallingPid(), mClientPid); 450 return BAD_VALUE; 451 } 452 453 mClientPid = getCallingPid(); 454 455 mRemoteCallback = client; 456 mSharedCameraCallbacks = client; 457 458 return OK; 459} 460 461status_t Camera2Client::lock() { 462 ATRACE_CALL(); 463 ALOGV("%s: E", __FUNCTION__); 464 Mutex::Autolock icl(mBinderSerializationLock); 465 ALOGV("%s: Camera %d: Lock call from pid %d; current client pid %d", 466 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 467 468 if (mClientPid == 0) { 469 mClientPid = getCallingPid(); 470 return OK; 471 } 472 473 if (mClientPid != getCallingPid()) { 474 ALOGE("%s: Camera %d: Lock call from pid %d; currently locked to pid %d", 475 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 476 return EBUSY; 477 } 478 479 return OK; 480} 481 482status_t Camera2Client::unlock() { 483 ATRACE_CALL(); 484 ALOGV("%s: E", __FUNCTION__); 485 Mutex::Autolock icl(mBinderSerializationLock); 486 ALOGV("%s: Camera %d: Unlock call from pid %d; current client pid %d", 487 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 488 489 if (mClientPid == getCallingPid()) { 490 SharedParameters::Lock l(mParameters); 491 if (l.mParameters.state == Parameters::RECORD || 492 l.mParameters.state == Parameters::VIDEO_SNAPSHOT) { 493 ALOGD("Not allowed to unlock camera during recording."); 494 return INVALID_OPERATION; 495 } 496 mClientPid = 0; 497 mRemoteCallback.clear(); 498 mSharedCameraCallbacks.clear(); 499 return OK; 500 } 501 502 ALOGE("%s: Camera %d: Unlock call from pid %d; currently locked to pid %d", 503 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 504 return EBUSY; 505} 506 507status_t Camera2Client::setPreviewTarget( 508 const sp<IGraphicBufferProducer>& bufferProducer) { 509 ATRACE_CALL(); 510 ALOGV("%s: E", __FUNCTION__); 511 Mutex::Autolock icl(mBinderSerializationLock); 512 status_t res; 513 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 514 515 sp<IBinder> binder; 516 sp<ANativeWindow> window; 517 if (bufferProducer != 0) { 518 binder = bufferProducer->asBinder(); 519 // Using controlledByApp flag to ensure that the buffer queue remains in 520 // async mode for the old camera API, where many applications depend 521 // on that behavior. 522 window = new Surface(bufferProducer, /*controlledByApp*/ true); 523 } 524 return setPreviewWindowL(binder, window); 525} 526 527status_t Camera2Client::setPreviewWindowL(const sp<IBinder>& binder, 528 sp<ANativeWindow> window) { 529 ATRACE_CALL(); 530 status_t res; 531 532 if (binder == mPreviewSurface) { 533 ALOGV("%s: Camera %d: New window is same as old window", 534 __FUNCTION__, mCameraId); 535 return NO_ERROR; 536 } 537 538 Parameters::State state; 539 { 540 SharedParameters::Lock l(mParameters); 541 state = l.mParameters.state; 542 } 543 switch (state) { 544 case Parameters::DISCONNECTED: 545 case Parameters::RECORD: 546 case Parameters::STILL_CAPTURE: 547 case Parameters::VIDEO_SNAPSHOT: 548 ALOGE("%s: Camera %d: Cannot set preview display while in state %s", 549 __FUNCTION__, mCameraId, 550 Parameters::getStateName(state)); 551 return INVALID_OPERATION; 552 case Parameters::STOPPED: 553 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 554 // OK 555 break; 556 case Parameters::PREVIEW: 557 // Already running preview - need to stop and create a new stream 558 res = stopStream(); 559 if (res != OK) { 560 ALOGE("%s: Unable to stop preview to swap windows: %s (%d)", 561 __FUNCTION__, strerror(-res), res); 562 return res; 563 } 564 state = Parameters::WAITING_FOR_PREVIEW_WINDOW; 565 break; 566 } 567 568 mPreviewSurface = binder; 569 res = mStreamingProcessor->setPreviewWindow(window); 570 if (res != OK) { 571 ALOGE("%s: Unable to set new preview window: %s (%d)", 572 __FUNCTION__, strerror(-res), res); 573 return res; 574 } 575 576 if (state == Parameters::WAITING_FOR_PREVIEW_WINDOW) { 577 SharedParameters::Lock l(mParameters); 578 l.mParameters.state = state; 579 return startPreviewL(l.mParameters, false); 580 } 581 582 return OK; 583} 584 585void Camera2Client::setPreviewCallbackFlag(int flag) { 586 ATRACE_CALL(); 587 ALOGV("%s: Camera %d: Flag 0x%x", __FUNCTION__, mCameraId, flag); 588 Mutex::Autolock icl(mBinderSerializationLock); 589 590 if ( checkPid(__FUNCTION__) != OK) return; 591 592 SharedParameters::Lock l(mParameters); 593 setPreviewCallbackFlagL(l.mParameters, flag); 594} 595 596void Camera2Client::setPreviewCallbackFlagL(Parameters ¶ms, int flag) { 597 status_t res = OK; 598 599 switch(params.state) { 600 case Parameters::STOPPED: 601 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 602 case Parameters::PREVIEW: 603 case Parameters::STILL_CAPTURE: 604 // OK 605 break; 606 default: 607 if (flag & CAMERA_FRAME_CALLBACK_FLAG_ENABLE_MASK) { 608 ALOGE("%s: Camera %d: Can't use preview callbacks " 609 "in state %d", __FUNCTION__, mCameraId, params.state); 610 return; 611 } 612 } 613 614 if (flag & CAMERA_FRAME_CALLBACK_FLAG_ONE_SHOT_MASK) { 615 ALOGV("%s: setting oneshot", __FUNCTION__); 616 params.previewCallbackOneShot = true; 617 } 618 if (params.previewCallbackFlags != (uint32_t)flag) { 619 620 if (params.previewCallbackSurface && flag != CAMERA_FRAME_CALLBACK_FLAG_NOOP) { 621 // Disable any existing preview callback window when enabling 622 // preview callback flags 623 res = mCallbackProcessor->setCallbackWindow(NULL); 624 if (res != OK) { 625 ALOGE("%s: Camera %d: Unable to clear preview callback surface:" 626 " %s (%d)", __FUNCTION__, mCameraId, strerror(-res), res); 627 return; 628 } 629 params.previewCallbackSurface = false; 630 } 631 632 params.previewCallbackFlags = flag; 633 634 if (params.state == Parameters::PREVIEW) { 635 res = startPreviewL(params, true); 636 if (res != OK) { 637 ALOGE("%s: Camera %d: Unable to refresh request in state %s", 638 __FUNCTION__, mCameraId, 639 Parameters::getStateName(params.state)); 640 } 641 } 642 } 643} 644 645status_t Camera2Client::setPreviewCallbackTarget( 646 const sp<IGraphicBufferProducer>& callbackProducer) { 647 ATRACE_CALL(); 648 ALOGV("%s: E", __FUNCTION__); 649 Mutex::Autolock icl(mBinderSerializationLock); 650 status_t res; 651 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 652 653 sp<ANativeWindow> window; 654 if (callbackProducer != 0) { 655 window = new Surface(callbackProducer); 656 } 657 658 res = mCallbackProcessor->setCallbackWindow(window); 659 if (res != OK) { 660 ALOGE("%s: Camera %d: Unable to set preview callback surface: %s (%d)", 661 __FUNCTION__, mCameraId, strerror(-res), res); 662 return res; 663 } 664 665 SharedParameters::Lock l(mParameters); 666 667 if (window != NULL) { 668 // Disable traditional callbacks when a valid callback target is given 669 l.mParameters.previewCallbackFlags = CAMERA_FRAME_CALLBACK_FLAG_NOOP; 670 l.mParameters.previewCallbackOneShot = false; 671 l.mParameters.previewCallbackSurface = true; 672 } else { 673 // Disable callback target if given a NULL interface. 674 l.mParameters.previewCallbackSurface = false; 675 } 676 677 switch(l.mParameters.state) { 678 case Parameters::PREVIEW: 679 res = startPreviewL(l.mParameters, true); 680 break; 681 case Parameters::RECORD: 682 case Parameters::VIDEO_SNAPSHOT: 683 res = startRecordingL(l.mParameters, true); 684 break; 685 default: 686 break; 687 } 688 if (res != OK) { 689 ALOGE("%s: Camera %d: Unable to refresh request in state %s", 690 __FUNCTION__, mCameraId, 691 Parameters::getStateName(l.mParameters.state)); 692 } 693 694 return OK; 695} 696 697 698status_t Camera2Client::startPreview() { 699 ATRACE_CALL(); 700 ALOGV("%s: E", __FUNCTION__); 701 Mutex::Autolock icl(mBinderSerializationLock); 702 status_t res; 703 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 704 SharedParameters::Lock l(mParameters); 705 return startPreviewL(l.mParameters, false); 706} 707 708status_t Camera2Client::startPreviewL(Parameters ¶ms, bool restart) { 709 ATRACE_CALL(); 710 status_t res; 711 712 ALOGV("%s: state == %d, restart = %d", __FUNCTION__, params.state, restart); 713 714 if ( (params.state == Parameters::PREVIEW || 715 params.state == Parameters::RECORD || 716 params.state == Parameters::VIDEO_SNAPSHOT) 717 && !restart) { 718 // Succeed attempt to re-enter a streaming state 719 ALOGI("%s: Camera %d: Preview already active, ignoring restart", 720 __FUNCTION__, mCameraId); 721 return OK; 722 } 723 if (params.state > Parameters::PREVIEW && !restart) { 724 ALOGE("%s: Can't start preview in state %s", 725 __FUNCTION__, 726 Parameters::getStateName(params.state)); 727 return INVALID_OPERATION; 728 } 729 730 if (!mStreamingProcessor->haveValidPreviewWindow()) { 731 params.state = Parameters::WAITING_FOR_PREVIEW_WINDOW; 732 return OK; 733 } 734 params.state = Parameters::STOPPED; 735 736 res = mStreamingProcessor->updatePreviewStream(params); 737 if (res != OK) { 738 ALOGE("%s: Camera %d: Unable to update preview stream: %s (%d)", 739 __FUNCTION__, mCameraId, strerror(-res), res); 740 return res; 741 } 742 743 // We could wait to create the JPEG output stream until first actual use 744 // (first takePicture call). However, this would substantially increase the 745 // first capture latency on HAL3 devices, and potentially on some HAL2 746 // devices. So create it unconditionally at preview start. As a drawback, 747 // this increases gralloc memory consumption for applications that don't 748 // ever take a picture. 749 // TODO: Find a better compromise, though this likely would involve HAL 750 // changes. 751 res = updateProcessorStream(mJpegProcessor, params); 752 if (res != OK) { 753 ALOGE("%s: Camera %d: Can't pre-configure still image " 754 "stream: %s (%d)", 755 __FUNCTION__, mCameraId, strerror(-res), res); 756 return res; 757 } 758 759 Vector<int32_t> outputStreams; 760 bool callbacksEnabled = (params.previewCallbackFlags & 761 CAMERA_FRAME_CALLBACK_FLAG_ENABLE_MASK) || 762 params.previewCallbackSurface; 763 764 if (callbacksEnabled) { 765 // Can't have recording stream hanging around when enabling callbacks, 766 // since it exceeds the max stream count on some devices. 767 if (mStreamingProcessor->getRecordingStreamId() != NO_STREAM) { 768 ALOGV("%s: Camera %d: Clearing out recording stream before " 769 "creating callback stream", __FUNCTION__, mCameraId); 770 res = mStreamingProcessor->stopStream(); 771 if (res != OK) { 772 ALOGE("%s: Camera %d: Can't stop streaming to delete " 773 "recording stream", __FUNCTION__, mCameraId); 774 return res; 775 } 776 res = mStreamingProcessor->deleteRecordingStream(); 777 if (res != OK) { 778 ALOGE("%s: Camera %d: Unable to delete recording stream before " 779 "enabling callbacks: %s (%d)", __FUNCTION__, mCameraId, 780 strerror(-res), res); 781 return res; 782 } 783 } 784 785 res = mCallbackProcessor->updateStream(params); 786 if (res != OK) { 787 ALOGE("%s: Camera %d: Unable to update callback stream: %s (%d)", 788 __FUNCTION__, mCameraId, strerror(-res), res); 789 return res; 790 } 791 outputStreams.push(getCallbackStreamId()); 792 } 793 if (params.zslMode && !params.recordingHint) { 794 res = updateProcessorStream(mZslProcessor, params); 795 if (res != OK) { 796 ALOGE("%s: Camera %d: Unable to update ZSL stream: %s (%d)", 797 __FUNCTION__, mCameraId, strerror(-res), res); 798 return res; 799 } 800 outputStreams.push(getZslStreamId()); 801 } 802 803 outputStreams.push(getPreviewStreamId()); 804 805 if (!params.recordingHint) { 806 if (!restart) { 807 res = mStreamingProcessor->updatePreviewRequest(params); 808 if (res != OK) { 809 ALOGE("%s: Camera %d: Can't set up preview request: " 810 "%s (%d)", __FUNCTION__, mCameraId, 811 strerror(-res), res); 812 return res; 813 } 814 } 815 res = mStreamingProcessor->startStream(StreamingProcessor::PREVIEW, 816 outputStreams); 817 } else { 818 if (!restart) { 819 res = mStreamingProcessor->updateRecordingRequest(params); 820 if (res != OK) { 821 ALOGE("%s: Camera %d: Can't set up preview request with " 822 "record hint: %s (%d)", __FUNCTION__, mCameraId, 823 strerror(-res), res); 824 return res; 825 } 826 } 827 res = mStreamingProcessor->startStream(StreamingProcessor::RECORD, 828 outputStreams); 829 } 830 if (res != OK) { 831 ALOGE("%s: Camera %d: Unable to start streaming preview: %s (%d)", 832 __FUNCTION__, mCameraId, strerror(-res), res); 833 return res; 834 } 835 836 params.state = Parameters::PREVIEW; 837 return OK; 838} 839 840void Camera2Client::stopPreview() { 841 ATRACE_CALL(); 842 ALOGV("%s: E", __FUNCTION__); 843 Mutex::Autolock icl(mBinderSerializationLock); 844 status_t res; 845 if ( (res = checkPid(__FUNCTION__) ) != OK) return; 846 stopPreviewL(); 847} 848 849void Camera2Client::stopPreviewL() { 850 ATRACE_CALL(); 851 status_t res; 852 const nsecs_t kStopCaptureTimeout = 3000000000LL; // 3 seconds 853 Parameters::State state; 854 { 855 SharedParameters::Lock l(mParameters); 856 state = l.mParameters.state; 857 } 858 859 switch (state) { 860 case Parameters::DISCONNECTED: 861 // Nothing to do. 862 break; 863 case Parameters::STOPPED: 864 case Parameters::VIDEO_SNAPSHOT: 865 case Parameters::STILL_CAPTURE: 866 mCaptureSequencer->waitUntilIdle(kStopCaptureTimeout); 867 // no break 868 case Parameters::RECORD: 869 case Parameters::PREVIEW: 870 syncWithDevice(); 871 res = stopStream(); 872 if (res != OK) { 873 ALOGE("%s: Camera %d: Can't stop streaming: %s (%d)", 874 __FUNCTION__, mCameraId, strerror(-res), res); 875 } 876 res = mDevice->waitUntilDrained(); 877 if (res != OK) { 878 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 879 __FUNCTION__, mCameraId, strerror(-res), res); 880 } 881 // no break 882 case Parameters::WAITING_FOR_PREVIEW_WINDOW: { 883 SharedParameters::Lock l(mParameters); 884 l.mParameters.state = Parameters::STOPPED; 885 commandStopFaceDetectionL(l.mParameters); 886 break; 887 } 888 default: 889 ALOGE("%s: Camera %d: Unknown state %d", __FUNCTION__, mCameraId, 890 state); 891 } 892} 893 894bool Camera2Client::previewEnabled() { 895 ATRACE_CALL(); 896 Mutex::Autolock icl(mBinderSerializationLock); 897 status_t res; 898 if ( (res = checkPid(__FUNCTION__) ) != OK) return false; 899 900 SharedParameters::Lock l(mParameters); 901 return l.mParameters.state == Parameters::PREVIEW; 902} 903 904status_t Camera2Client::storeMetaDataInBuffers(bool enabled) { 905 ATRACE_CALL(); 906 Mutex::Autolock icl(mBinderSerializationLock); 907 status_t res; 908 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 909 910 SharedParameters::Lock l(mParameters); 911 switch (l.mParameters.state) { 912 case Parameters::RECORD: 913 case Parameters::VIDEO_SNAPSHOT: 914 ALOGE("%s: Camera %d: Can't be called in state %s", 915 __FUNCTION__, mCameraId, 916 Parameters::getStateName(l.mParameters.state)); 917 return INVALID_OPERATION; 918 default: 919 // OK 920 break; 921 } 922 923 l.mParameters.storeMetadataInBuffers = enabled; 924 925 return OK; 926} 927 928status_t Camera2Client::startRecording() { 929 ATRACE_CALL(); 930 ALOGV("%s: E", __FUNCTION__); 931 Mutex::Autolock icl(mBinderSerializationLock); 932 status_t res; 933 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 934 SharedParameters::Lock l(mParameters); 935 936 return startRecordingL(l.mParameters, false); 937} 938 939status_t Camera2Client::startRecordingL(Parameters ¶ms, bool restart) { 940 status_t res; 941 942 ALOGV("%s: state == %d, restart = %d", __FUNCTION__, params.state, restart); 943 944 switch (params.state) { 945 case Parameters::STOPPED: 946 res = startPreviewL(params, false); 947 if (res != OK) return res; 948 break; 949 case Parameters::PREVIEW: 950 // Ready to go 951 break; 952 case Parameters::RECORD: 953 case Parameters::VIDEO_SNAPSHOT: 954 // OK to call this when recording is already on, just skip unless 955 // we're looking to restart 956 if (!restart) return OK; 957 break; 958 default: 959 ALOGE("%s: Camera %d: Can't start recording in state %s", 960 __FUNCTION__, mCameraId, 961 Parameters::getStateName(params.state)); 962 return INVALID_OPERATION; 963 }; 964 965 if (!params.storeMetadataInBuffers) { 966 ALOGE("%s: Camera %d: Recording only supported in metadata mode, but " 967 "non-metadata recording mode requested!", __FUNCTION__, 968 mCameraId); 969 return INVALID_OPERATION; 970 } 971 972 if (!restart) { 973 mCameraService->playSound(CameraService::SOUND_RECORDING); 974 mStreamingProcessor->updateRecordingRequest(params); 975 if (res != OK) { 976 ALOGE("%s: Camera %d: Unable to update recording request: %s (%d)", 977 __FUNCTION__, mCameraId, strerror(-res), res); 978 return res; 979 } 980 } 981 982 // Not all devices can support a preview callback stream and a recording 983 // stream at the same time, so assume none of them can. 984 if (mCallbackProcessor->getStreamId() != NO_STREAM) { 985 ALOGV("%s: Camera %d: Clearing out callback stream before " 986 "creating recording stream", __FUNCTION__, mCameraId); 987 res = mStreamingProcessor->stopStream(); 988 if (res != OK) { 989 ALOGE("%s: Camera %d: Can't stop streaming to delete callback stream", 990 __FUNCTION__, mCameraId); 991 return res; 992 } 993 res = mCallbackProcessor->deleteStream(); 994 if (res != OK) { 995 ALOGE("%s: Camera %d: Unable to delete callback stream before " 996 "record: %s (%d)", __FUNCTION__, mCameraId, 997 strerror(-res), res); 998 return res; 999 } 1000 } 1001 // Disable callbacks if they're enabled; can't record and use callbacks, 1002 // and we can't fail record start without stagefright asserting. 1003 params.previewCallbackFlags = 0; 1004 1005 res = updateProcessorStream< 1006 StreamingProcessor, 1007 &StreamingProcessor::updateRecordingStream>(mStreamingProcessor, 1008 params); 1009 if (res != OK) { 1010 ALOGE("%s: Camera %d: Unable to update recording stream: %s (%d)", 1011 __FUNCTION__, mCameraId, strerror(-res), res); 1012 return res; 1013 } 1014 1015 Vector<int32_t> outputStreams; 1016 outputStreams.push(getPreviewStreamId()); 1017 outputStreams.push(getRecordingStreamId()); 1018 1019 res = mStreamingProcessor->startStream(StreamingProcessor::RECORD, 1020 outputStreams); 1021 if (res != OK) { 1022 ALOGE("%s: Camera %d: Unable to start recording stream: %s (%d)", 1023 __FUNCTION__, mCameraId, strerror(-res), res); 1024 return res; 1025 } 1026 1027 if (params.state < Parameters::RECORD) { 1028 params.state = Parameters::RECORD; 1029 } 1030 1031 return OK; 1032} 1033 1034void Camera2Client::stopRecording() { 1035 ATRACE_CALL(); 1036 ALOGV("%s: E", __FUNCTION__); 1037 Mutex::Autolock icl(mBinderSerializationLock); 1038 SharedParameters::Lock l(mParameters); 1039 1040 status_t res; 1041 if ( (res = checkPid(__FUNCTION__) ) != OK) return; 1042 1043 switch (l.mParameters.state) { 1044 case Parameters::RECORD: 1045 // OK to stop 1046 break; 1047 case Parameters::STOPPED: 1048 case Parameters::PREVIEW: 1049 case Parameters::STILL_CAPTURE: 1050 case Parameters::VIDEO_SNAPSHOT: 1051 default: 1052 ALOGE("%s: Camera %d: Can't stop recording in state %s", 1053 __FUNCTION__, mCameraId, 1054 Parameters::getStateName(l.mParameters.state)); 1055 return; 1056 }; 1057 1058 mCameraService->playSound(CameraService::SOUND_RECORDING); 1059 1060 res = startPreviewL(l.mParameters, true); 1061 if (res != OK) { 1062 ALOGE("%s: Camera %d: Unable to return to preview", 1063 __FUNCTION__, mCameraId); 1064 } 1065} 1066 1067bool Camera2Client::recordingEnabled() { 1068 ATRACE_CALL(); 1069 Mutex::Autolock icl(mBinderSerializationLock); 1070 1071 if ( checkPid(__FUNCTION__) != OK) return false; 1072 1073 return recordingEnabledL(); 1074} 1075 1076bool Camera2Client::recordingEnabledL() { 1077 ATRACE_CALL(); 1078 SharedParameters::Lock l(mParameters); 1079 1080 return (l.mParameters.state == Parameters::RECORD 1081 || l.mParameters.state == Parameters::VIDEO_SNAPSHOT); 1082} 1083 1084void Camera2Client::releaseRecordingFrame(const sp<IMemory>& mem) { 1085 ATRACE_CALL(); 1086 Mutex::Autolock icl(mBinderSerializationLock); 1087 if ( checkPid(__FUNCTION__) != OK) return; 1088 1089 mStreamingProcessor->releaseRecordingFrame(mem); 1090} 1091 1092status_t Camera2Client::autoFocus() { 1093 ATRACE_CALL(); 1094 Mutex::Autolock icl(mBinderSerializationLock); 1095 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1096 status_t res; 1097 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1098 1099 int triggerId; 1100 bool notifyImmediately = false; 1101 bool notifySuccess = false; 1102 { 1103 SharedParameters::Lock l(mParameters); 1104 if (l.mParameters.state < Parameters::PREVIEW) { 1105 return INVALID_OPERATION; 1106 } 1107 1108 /** 1109 * If the camera does not support auto-focus, it is a no-op and 1110 * onAutoFocus(boolean, Camera) callback will be called immediately 1111 * with a fake value of success set to true. 1112 * 1113 * Similarly, if focus mode is set to INFINITY, there's no reason to 1114 * bother the HAL. 1115 */ 1116 if (l.mParameters.focusMode == Parameters::FOCUS_MODE_FIXED || 1117 l.mParameters.focusMode == Parameters::FOCUS_MODE_INFINITY) { 1118 notifyImmediately = true; 1119 notifySuccess = true; 1120 } 1121 /** 1122 * If we're in CAF mode, and AF has already been locked, just fire back 1123 * the callback right away; the HAL would not send a notification since 1124 * no state change would happen on a AF trigger. 1125 */ 1126 if ( (l.mParameters.focusMode == Parameters::FOCUS_MODE_CONTINUOUS_PICTURE || 1127 l.mParameters.focusMode == Parameters::FOCUS_MODE_CONTINUOUS_VIDEO) && 1128 l.mParameters.focusState == ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED ) { 1129 notifyImmediately = true; 1130 notifySuccess = true; 1131 } 1132 /** 1133 * Send immediate notification back to client 1134 */ 1135 if (notifyImmediately) { 1136 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1137 if (l.mRemoteCallback != 0) { 1138 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS, 1139 notifySuccess ? 1 : 0, 0); 1140 } 1141 return OK; 1142 } 1143 /** 1144 * Handle quirk mode for AF in scene modes 1145 */ 1146 if (l.mParameters.quirks.triggerAfWithAuto && 1147 l.mParameters.sceneMode != ANDROID_CONTROL_SCENE_MODE_UNSUPPORTED && 1148 l.mParameters.focusMode != Parameters::FOCUS_MODE_AUTO && 1149 !l.mParameters.focusingAreas[0].isEmpty()) { 1150 ALOGV("%s: Quirk: Switching from focusMode %d to AUTO", 1151 __FUNCTION__, l.mParameters.focusMode); 1152 l.mParameters.shadowFocusMode = l.mParameters.focusMode; 1153 l.mParameters.focusMode = Parameters::FOCUS_MODE_AUTO; 1154 updateRequests(l.mParameters); 1155 } 1156 1157 l.mParameters.currentAfTriggerId = ++l.mParameters.afTriggerCounter; 1158 triggerId = l.mParameters.currentAfTriggerId; 1159 } 1160 ATRACE_ASYNC_BEGIN(kAutofocusLabel, triggerId); 1161 1162 syncWithDevice(); 1163 1164 mDevice->triggerAutofocus(triggerId); 1165 1166 return OK; 1167} 1168 1169status_t Camera2Client::cancelAutoFocus() { 1170 ATRACE_CALL(); 1171 Mutex::Autolock icl(mBinderSerializationLock); 1172 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1173 status_t res; 1174 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1175 1176 int triggerId; 1177 { 1178 SharedParameters::Lock l(mParameters); 1179 // Canceling does nothing in FIXED or INFINITY modes 1180 if (l.mParameters.focusMode == Parameters::FOCUS_MODE_FIXED || 1181 l.mParameters.focusMode == Parameters::FOCUS_MODE_INFINITY) { 1182 return OK; 1183 } 1184 1185 // An active AF trigger is canceled 1186 if (l.mParameters.afTriggerCounter == l.mParameters.currentAfTriggerId) { 1187 ATRACE_ASYNC_END(kAutofocusLabel, l.mParameters.currentAfTriggerId); 1188 } 1189 1190 triggerId = ++l.mParameters.afTriggerCounter; 1191 1192 // When using triggerAfWithAuto quirk, may need to reset focus mode to 1193 // the real state at this point. No need to cancel explicitly if 1194 // changing the AF mode. 1195 if (l.mParameters.shadowFocusMode != Parameters::FOCUS_MODE_INVALID) { 1196 ALOGV("%s: Quirk: Restoring focus mode to %d", __FUNCTION__, 1197 l.mParameters.shadowFocusMode); 1198 l.mParameters.focusMode = l.mParameters.shadowFocusMode; 1199 l.mParameters.shadowFocusMode = Parameters::FOCUS_MODE_INVALID; 1200 updateRequests(l.mParameters); 1201 1202 return OK; 1203 } 1204 } 1205 syncWithDevice(); 1206 1207 mDevice->triggerCancelAutofocus(triggerId); 1208 1209 return OK; 1210} 1211 1212status_t Camera2Client::takePicture(int msgType) { 1213 ATRACE_CALL(); 1214 Mutex::Autolock icl(mBinderSerializationLock); 1215 status_t res; 1216 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1217 1218 int takePictureCounter; 1219 { 1220 SharedParameters::Lock l(mParameters); 1221 switch (l.mParameters.state) { 1222 case Parameters::DISCONNECTED: 1223 case Parameters::STOPPED: 1224 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 1225 ALOGE("%s: Camera %d: Cannot take picture without preview enabled", 1226 __FUNCTION__, mCameraId); 1227 return INVALID_OPERATION; 1228 case Parameters::PREVIEW: 1229 // Good to go for takePicture 1230 res = commandStopFaceDetectionL(l.mParameters); 1231 if (res != OK) { 1232 ALOGE("%s: Camera %d: Unable to stop face detection for still capture", 1233 __FUNCTION__, mCameraId); 1234 return res; 1235 } 1236 l.mParameters.state = Parameters::STILL_CAPTURE; 1237 break; 1238 case Parameters::RECORD: 1239 // Good to go for video snapshot 1240 l.mParameters.state = Parameters::VIDEO_SNAPSHOT; 1241 break; 1242 case Parameters::STILL_CAPTURE: 1243 case Parameters::VIDEO_SNAPSHOT: 1244 ALOGE("%s: Camera %d: Already taking a picture", 1245 __FUNCTION__, mCameraId); 1246 return INVALID_OPERATION; 1247 } 1248 1249 ALOGV("%s: Camera %d: Starting picture capture", __FUNCTION__, mCameraId); 1250 1251 res = updateProcessorStream(mJpegProcessor, l.mParameters); 1252 if (res != OK) { 1253 ALOGE("%s: Camera %d: Can't set up still image stream: %s (%d)", 1254 __FUNCTION__, mCameraId, strerror(-res), res); 1255 return res; 1256 } 1257 takePictureCounter = ++l.mParameters.takePictureCounter; 1258 } 1259 1260 ATRACE_ASYNC_BEGIN(kTakepictureLabel, takePictureCounter); 1261 1262 // Need HAL to have correct settings before (possibly) triggering precapture 1263 syncWithDevice(); 1264 1265 res = mCaptureSequencer->startCapture(msgType); 1266 if (res != OK) { 1267 ALOGE("%s: Camera %d: Unable to start capture: %s (%d)", 1268 __FUNCTION__, mCameraId, strerror(-res), res); 1269 } 1270 1271 return res; 1272} 1273 1274status_t Camera2Client::setParameters(const String8& params) { 1275 ATRACE_CALL(); 1276 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1277 Mutex::Autolock icl(mBinderSerializationLock); 1278 status_t res; 1279 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1280 1281 SharedParameters::Lock l(mParameters); 1282 1283 res = l.mParameters.set(params); 1284 if (res != OK) return res; 1285 1286 res = updateRequests(l.mParameters); 1287 1288 return res; 1289} 1290 1291String8 Camera2Client::getParameters() const { 1292 ATRACE_CALL(); 1293 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1294 Mutex::Autolock icl(mBinderSerializationLock); 1295 if ( checkPid(__FUNCTION__) != OK) return String8(); 1296 1297 SharedParameters::ReadLock l(mParameters); 1298 1299 return l.mParameters.get(); 1300} 1301 1302status_t Camera2Client::sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) { 1303 ATRACE_CALL(); 1304 Mutex::Autolock icl(mBinderSerializationLock); 1305 status_t res; 1306 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1307 1308 ALOGV("%s: Camera %d: Command %d (%d, %d)", __FUNCTION__, mCameraId, 1309 cmd, arg1, arg2); 1310 1311 switch (cmd) { 1312 case CAMERA_CMD_START_SMOOTH_ZOOM: 1313 return commandStartSmoothZoomL(); 1314 case CAMERA_CMD_STOP_SMOOTH_ZOOM: 1315 return commandStopSmoothZoomL(); 1316 case CAMERA_CMD_SET_DISPLAY_ORIENTATION: 1317 return commandSetDisplayOrientationL(arg1); 1318 case CAMERA_CMD_ENABLE_SHUTTER_SOUND: 1319 return commandEnableShutterSoundL(arg1 == 1); 1320 case CAMERA_CMD_PLAY_RECORDING_SOUND: 1321 return commandPlayRecordingSoundL(); 1322 case CAMERA_CMD_START_FACE_DETECTION: 1323 return commandStartFaceDetectionL(arg1); 1324 case CAMERA_CMD_STOP_FACE_DETECTION: { 1325 SharedParameters::Lock l(mParameters); 1326 return commandStopFaceDetectionL(l.mParameters); 1327 } 1328 case CAMERA_CMD_ENABLE_FOCUS_MOVE_MSG: 1329 return commandEnableFocusMoveMsgL(arg1 == 1); 1330 case CAMERA_CMD_PING: 1331 return commandPingL(); 1332 case CAMERA_CMD_SET_VIDEO_BUFFER_COUNT: 1333 return commandSetVideoBufferCountL(arg1); 1334 default: 1335 ALOGE("%s: Unknown command %d (arguments %d, %d)", 1336 __FUNCTION__, cmd, arg1, arg2); 1337 return BAD_VALUE; 1338 } 1339} 1340 1341status_t Camera2Client::commandStartSmoothZoomL() { 1342 ALOGE("%s: Unimplemented!", __FUNCTION__); 1343 return OK; 1344} 1345 1346status_t Camera2Client::commandStopSmoothZoomL() { 1347 ALOGE("%s: Unimplemented!", __FUNCTION__); 1348 return OK; 1349} 1350 1351status_t Camera2Client::commandSetDisplayOrientationL(int degrees) { 1352 int transform = Parameters::degToTransform(degrees, 1353 mCameraFacing == CAMERA_FACING_FRONT); 1354 if (transform == -1) { 1355 ALOGE("%s: Camera %d: Error setting %d as display orientation value", 1356 __FUNCTION__, mCameraId, degrees); 1357 return BAD_VALUE; 1358 } 1359 SharedParameters::Lock l(mParameters); 1360 if (transform != l.mParameters.previewTransform && 1361 getPreviewStreamId() != NO_STREAM) { 1362 mDevice->setStreamTransform(getPreviewStreamId(), transform); 1363 } 1364 l.mParameters.previewTransform = transform; 1365 return OK; 1366} 1367 1368status_t Camera2Client::commandEnableShutterSoundL(bool enable) { 1369 SharedParameters::Lock l(mParameters); 1370 if (enable) { 1371 l.mParameters.playShutterSound = true; 1372 return OK; 1373 } 1374 1375 // Disabling shutter sound may not be allowed. In that case only 1376 // allow the mediaserver process to disable the sound. 1377 char value[PROPERTY_VALUE_MAX]; 1378 property_get("ro.camera.sound.forced", value, "0"); 1379 if (strncmp(value, "0", 2) != 0) { 1380 // Disabling shutter sound is not allowed. Deny if the current 1381 // process is not mediaserver. 1382 if (getCallingPid() != getpid()) { 1383 ALOGE("Failed to disable shutter sound. Permission denied (pid %d)", 1384 getCallingPid()); 1385 return PERMISSION_DENIED; 1386 } 1387 } 1388 1389 l.mParameters.playShutterSound = false; 1390 return OK; 1391} 1392 1393status_t Camera2Client::commandPlayRecordingSoundL() { 1394 mCameraService->playSound(CameraService::SOUND_RECORDING); 1395 return OK; 1396} 1397 1398status_t Camera2Client::commandStartFaceDetectionL(int /*type*/) { 1399 ALOGV("%s: Camera %d: Starting face detection", 1400 __FUNCTION__, mCameraId); 1401 status_t res; 1402 SharedParameters::Lock l(mParameters); 1403 switch (l.mParameters.state) { 1404 case Parameters::DISCONNECTED: 1405 case Parameters::STOPPED: 1406 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 1407 case Parameters::STILL_CAPTURE: 1408 ALOGE("%s: Camera %d: Cannot start face detection without preview active", 1409 __FUNCTION__, mCameraId); 1410 return INVALID_OPERATION; 1411 case Parameters::PREVIEW: 1412 case Parameters::RECORD: 1413 case Parameters::VIDEO_SNAPSHOT: 1414 // Good to go for starting face detect 1415 break; 1416 } 1417 // Ignoring type 1418 if (l.mParameters.fastInfo.bestFaceDetectMode == 1419 ANDROID_STATISTICS_FACE_DETECT_MODE_OFF) { 1420 ALOGE("%s: Camera %d: Face detection not supported", 1421 __FUNCTION__, mCameraId); 1422 return BAD_VALUE; 1423 } 1424 if (l.mParameters.enableFaceDetect) return OK; 1425 1426 l.mParameters.enableFaceDetect = true; 1427 1428 res = updateRequests(l.mParameters); 1429 1430 return res; 1431} 1432 1433status_t Camera2Client::commandStopFaceDetectionL(Parameters ¶ms) { 1434 status_t res = OK; 1435 ALOGV("%s: Camera %d: Stopping face detection", 1436 __FUNCTION__, mCameraId); 1437 1438 if (!params.enableFaceDetect) return OK; 1439 1440 params.enableFaceDetect = false; 1441 1442 if (params.state == Parameters::PREVIEW 1443 || params.state == Parameters::RECORD 1444 || params.state == Parameters::VIDEO_SNAPSHOT) { 1445 res = updateRequests(params); 1446 } 1447 1448 return res; 1449} 1450 1451status_t Camera2Client::commandEnableFocusMoveMsgL(bool enable) { 1452 SharedParameters::Lock l(mParameters); 1453 l.mParameters.enableFocusMoveMessages = enable; 1454 1455 return OK; 1456} 1457 1458status_t Camera2Client::commandPingL() { 1459 // Always ping back if access is proper and device is alive 1460 SharedParameters::Lock l(mParameters); 1461 if (l.mParameters.state != Parameters::DISCONNECTED) { 1462 return OK; 1463 } else { 1464 return NO_INIT; 1465 } 1466} 1467 1468status_t Camera2Client::commandSetVideoBufferCountL(size_t count) { 1469 if (recordingEnabledL()) { 1470 ALOGE("%s: Camera %d: Error setting video buffer count after " 1471 "recording was started", __FUNCTION__, mCameraId); 1472 return INVALID_OPERATION; 1473 } 1474 1475 return mStreamingProcessor->setRecordingBufferCount(count); 1476} 1477 1478/** Device-related methods */ 1479void Camera2Client::notifyAutoFocus(uint8_t newState, int triggerId) { 1480 ALOGV("%s: Autofocus state now %d, last trigger %d", 1481 __FUNCTION__, newState, triggerId); 1482 bool sendCompletedMessage = false; 1483 bool sendMovingMessage = false; 1484 1485 bool success = false; 1486 bool afInMotion = false; 1487 { 1488 SharedParameters::Lock l(mParameters); 1489 // Trace end of AF state 1490 char tmp[32]; 1491 if (l.mParameters.afStateCounter > 0) { 1492 camera_metadata_enum_snprint( 1493 ANDROID_CONTROL_AF_STATE, l.mParameters.focusState, tmp, sizeof(tmp)); 1494 ATRACE_ASYNC_END(tmp, l.mParameters.afStateCounter); 1495 } 1496 1497 // Update state 1498 l.mParameters.focusState = newState; 1499 l.mParameters.afStateCounter++; 1500 1501 // Trace start of AF state 1502 1503 camera_metadata_enum_snprint( 1504 ANDROID_CONTROL_AF_STATE, l.mParameters.focusState, tmp, sizeof(tmp)); 1505 ATRACE_ASYNC_BEGIN(tmp, l.mParameters.afStateCounter); 1506 1507 switch (l.mParameters.focusMode) { 1508 case Parameters::FOCUS_MODE_AUTO: 1509 case Parameters::FOCUS_MODE_MACRO: 1510 // Don't send notifications upstream if they're not for the current AF 1511 // trigger. For example, if cancel was called in between, or if we 1512 // already sent a notification about this AF call. 1513 if (triggerId != l.mParameters.currentAfTriggerId) break; 1514 switch (newState) { 1515 case ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED: 1516 success = true; 1517 // no break 1518 case ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED: 1519 sendCompletedMessage = true; 1520 l.mParameters.currentAfTriggerId = -1; 1521 break; 1522 case ANDROID_CONTROL_AF_STATE_ACTIVE_SCAN: 1523 // Just starting focusing, ignore 1524 break; 1525 case ANDROID_CONTROL_AF_STATE_INACTIVE: 1526 case ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN: 1527 case ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED: 1528 case ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED: 1529 default: 1530 // Unexpected in AUTO/MACRO mode 1531 ALOGE("%s: Unexpected AF state transition in AUTO/MACRO mode: %d", 1532 __FUNCTION__, newState); 1533 break; 1534 } 1535 break; 1536 case Parameters::FOCUS_MODE_CONTINUOUS_VIDEO: 1537 case Parameters::FOCUS_MODE_CONTINUOUS_PICTURE: 1538 switch (newState) { 1539 case ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED: 1540 success = true; 1541 // no break 1542 case ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED: 1543 // Don't send notifications upstream if they're not for 1544 // the current AF trigger. For example, if cancel was 1545 // called in between, or if we already sent a 1546 // notification about this AF call. 1547 // Send both a 'AF done' callback and a 'AF move' callback 1548 if (triggerId != l.mParameters.currentAfTriggerId) break; 1549 sendCompletedMessage = true; 1550 afInMotion = false; 1551 if (l.mParameters.enableFocusMoveMessages && 1552 l.mParameters.afInMotion) { 1553 sendMovingMessage = true; 1554 } 1555 l.mParameters.currentAfTriggerId = -1; 1556 break; 1557 case ANDROID_CONTROL_AF_STATE_INACTIVE: 1558 // Cancel was called, or we switched state; care if 1559 // currently moving 1560 afInMotion = false; 1561 if (l.mParameters.enableFocusMoveMessages && 1562 l.mParameters.afInMotion) { 1563 sendMovingMessage = true; 1564 } 1565 break; 1566 case ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN: 1567 // Start passive scan, inform upstream 1568 afInMotion = true; 1569 // no break 1570 case ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED: 1571 case ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED: 1572 // Stop passive scan, inform upstream 1573 if (l.mParameters.enableFocusMoveMessages) { 1574 sendMovingMessage = true; 1575 } 1576 break; 1577 } 1578 l.mParameters.afInMotion = afInMotion; 1579 break; 1580 case Parameters::FOCUS_MODE_EDOF: 1581 case Parameters::FOCUS_MODE_INFINITY: 1582 case Parameters::FOCUS_MODE_FIXED: 1583 default: 1584 if (newState != ANDROID_CONTROL_AF_STATE_INACTIVE) { 1585 ALOGE("%s: Unexpected AF state change %d " 1586 "(ID %d) in focus mode %d", 1587 __FUNCTION__, newState, triggerId, 1588 l.mParameters.focusMode); 1589 } 1590 } 1591 } 1592 if (sendMovingMessage) { 1593 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1594 if (l.mRemoteCallback != 0) { 1595 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS_MOVE, 1596 afInMotion ? 1 : 0, 0); 1597 } 1598 } 1599 if (sendCompletedMessage) { 1600 ATRACE_ASYNC_END(kAutofocusLabel, triggerId); 1601 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1602 if (l.mRemoteCallback != 0) { 1603 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS, 1604 success ? 1 : 0, 0); 1605 } 1606 } 1607} 1608 1609void Camera2Client::notifyAutoExposure(uint8_t newState, int triggerId) { 1610 ALOGV("%s: Autoexposure state now %d, last trigger %d", 1611 __FUNCTION__, newState, triggerId); 1612 mCaptureSequencer->notifyAutoExposure(newState, triggerId); 1613} 1614 1615camera2::SharedParameters& Camera2Client::getParameters() { 1616 return mParameters; 1617} 1618 1619int Camera2Client::getPreviewStreamId() const { 1620 return mStreamingProcessor->getPreviewStreamId(); 1621} 1622 1623int Camera2Client::getCaptureStreamId() const { 1624 return mJpegProcessor->getStreamId(); 1625} 1626 1627int Camera2Client::getCallbackStreamId() const { 1628 return mCallbackProcessor->getStreamId(); 1629} 1630 1631int Camera2Client::getRecordingStreamId() const { 1632 return mStreamingProcessor->getRecordingStreamId(); 1633} 1634 1635int Camera2Client::getZslStreamId() const { 1636 return mZslProcessor->getStreamId(); 1637} 1638 1639status_t Camera2Client::registerFrameListener(int32_t minId, int32_t maxId, 1640 wp<camera2::FrameProcessor::FilteredListener> listener) { 1641 return mFrameProcessor->registerListener(minId, maxId, listener); 1642} 1643 1644status_t Camera2Client::removeFrameListener(int32_t minId, int32_t maxId, 1645 wp<camera2::FrameProcessor::FilteredListener> listener) { 1646 return mFrameProcessor->removeListener(minId, maxId, listener); 1647} 1648 1649status_t Camera2Client::stopStream() { 1650 return mStreamingProcessor->stopStream(); 1651} 1652 1653const int32_t Camera2Client::kPreviewRequestIdStart; 1654const int32_t Camera2Client::kPreviewRequestIdEnd; 1655const int32_t Camera2Client::kRecordingRequestIdStart; 1656const int32_t Camera2Client::kRecordingRequestIdEnd; 1657const int32_t Camera2Client::kCaptureRequestIdStart; 1658const int32_t Camera2Client::kCaptureRequestIdEnd; 1659 1660/** Utility methods */ 1661 1662status_t Camera2Client::updateRequests(Parameters ¶ms) { 1663 status_t res; 1664 1665 ALOGV("%s: Camera %d: state = %d", __FUNCTION__, getCameraId(), params.state); 1666 1667 res = mStreamingProcessor->incrementStreamingIds(); 1668 if (res != OK) { 1669 ALOGE("%s: Camera %d: Unable to increment request IDs: %s (%d)", 1670 __FUNCTION__, mCameraId, strerror(-res), res); 1671 return res; 1672 } 1673 1674 res = mStreamingProcessor->updatePreviewRequest(params); 1675 if (res != OK) { 1676 ALOGE("%s: Camera %d: Unable to update preview request: %s (%d)", 1677 __FUNCTION__, mCameraId, strerror(-res), res); 1678 return res; 1679 } 1680 res = mStreamingProcessor->updateRecordingRequest(params); 1681 if (res != OK) { 1682 ALOGE("%s: Camera %d: Unable to update recording request: %s (%d)", 1683 __FUNCTION__, mCameraId, strerror(-res), res); 1684 return res; 1685 } 1686 1687 if (params.state == Parameters::PREVIEW) { 1688 res = startPreviewL(params, true); 1689 if (res != OK) { 1690 ALOGE("%s: Camera %d: Error streaming new preview request: %s (%d)", 1691 __FUNCTION__, mCameraId, strerror(-res), res); 1692 return res; 1693 } 1694 } else if (params.state == Parameters::RECORD || 1695 params.state == Parameters::VIDEO_SNAPSHOT) { 1696 res = startRecordingL(params, true); 1697 if (res != OK) { 1698 ALOGE("%s: Camera %d: Error streaming new record request: %s (%d)", 1699 __FUNCTION__, mCameraId, strerror(-res), res); 1700 return res; 1701 } 1702 } 1703 return res; 1704} 1705 1706 1707size_t Camera2Client::calculateBufferSize(int width, int height, 1708 int format, int stride) { 1709 switch (format) { 1710 case HAL_PIXEL_FORMAT_YCbCr_422_SP: // NV16 1711 return width * height * 2; 1712 case HAL_PIXEL_FORMAT_YCrCb_420_SP: // NV21 1713 return width * height * 3 / 2; 1714 case HAL_PIXEL_FORMAT_YCbCr_422_I: // YUY2 1715 return width * height * 2; 1716 case HAL_PIXEL_FORMAT_YV12: { // YV12 1717 size_t ySize = stride * height; 1718 size_t uvStride = (stride / 2 + 0xF) & ~0xF; 1719 size_t uvSize = uvStride * height / 2; 1720 return ySize + uvSize * 2; 1721 } 1722 case HAL_PIXEL_FORMAT_RGB_565: 1723 return width * height * 2; 1724 case HAL_PIXEL_FORMAT_RGBA_8888: 1725 return width * height * 4; 1726 case HAL_PIXEL_FORMAT_RAW_SENSOR: 1727 return width * height * 2; 1728 default: 1729 ALOGE("%s: Unknown preview format: %x", 1730 __FUNCTION__, format); 1731 return 0; 1732 } 1733} 1734 1735status_t Camera2Client::syncWithDevice() { 1736 ATRACE_CALL(); 1737 const nsecs_t kMaxSyncTimeout = 500000000; // 500 ms 1738 status_t res; 1739 1740 int32_t activeRequestId = mStreamingProcessor->getActiveRequestId(); 1741 if (activeRequestId == 0) return OK; 1742 1743 res = mDevice->waitUntilRequestReceived(activeRequestId, kMaxSyncTimeout); 1744 if (res == TIMED_OUT) { 1745 ALOGE("%s: Camera %d: Timed out waiting sync with HAL", 1746 __FUNCTION__, mCameraId); 1747 } else if (res != OK) { 1748 ALOGE("%s: Camera %d: Error while waiting to sync with HAL", 1749 __FUNCTION__, mCameraId); 1750 } 1751 return res; 1752} 1753 1754template <typename ProcessorT> 1755status_t Camera2Client::updateProcessorStream(sp<ProcessorT> processor, 1756 camera2::Parameters params) { 1757 // No default template arguments until C++11, so we need this overload 1758 return updateProcessorStream<ProcessorT, &ProcessorT::updateStream>( 1759 processor, params); 1760} 1761 1762template <typename ProcessorT, 1763 status_t (ProcessorT::*updateStreamF)(const Parameters &)> 1764status_t Camera2Client::updateProcessorStream(sp<ProcessorT> processor, 1765 Parameters params) { 1766 status_t res; 1767 1768 // Get raw pointer since sp<T> doesn't have operator->* 1769 ProcessorT *processorPtr = processor.get(); 1770 res = (processorPtr->*updateStreamF)(params); 1771 1772 /** 1773 * Can't update the stream if it's busy? 1774 * 1775 * Then we need to stop the device (by temporarily clearing the request 1776 * queue) and then try again. Resume streaming once we're done. 1777 */ 1778 if (res == -EBUSY) { 1779 ALOGV("%s: Camera %d: Pausing to update stream", __FUNCTION__, 1780 mCameraId); 1781 res = mStreamingProcessor->togglePauseStream(/*pause*/true); 1782 if (res != OK) { 1783 ALOGE("%s: Camera %d: Can't pause streaming: %s (%d)", 1784 __FUNCTION__, mCameraId, strerror(-res), res); 1785 } 1786 1787 res = mDevice->waitUntilDrained(); 1788 if (res != OK) { 1789 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 1790 __FUNCTION__, mCameraId, strerror(-res), res); 1791 } 1792 1793 res = (processorPtr->*updateStreamF)(params); 1794 if (res != OK) { 1795 ALOGE("%s: Camera %d: Failed to update processing stream " 1796 " despite having halted streaming first: %s (%d)", 1797 __FUNCTION__, mCameraId, strerror(-res), res); 1798 } 1799 1800 res = mStreamingProcessor->togglePauseStream(/*pause*/false); 1801 if (res != OK) { 1802 ALOGE("%s: Camera %d: Can't unpause streaming: %s (%d)", 1803 __FUNCTION__, mCameraId, strerror(-res), res); 1804 } 1805 } 1806 1807 return res; 1808} 1809 1810const char* Camera2Client::kAutofocusLabel = "autofocus"; 1811const char* Camera2Client::kTakepictureLabel = "take_picture"; 1812 1813} // namespace android 1814