Camera2Client.cpp revision c69b91ceae6255e41c5413796fb0ed4f7af45b15
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 <utils/Log.h> 22#include <utils/Trace.h> 23 24#include <cutils/properties.h> 25#include <gui/Surface.h> 26 27#include "api1/Camera2Client.h" 28 29#include "api1/client2/StreamingProcessor.h" 30#include "api1/client2/JpegProcessor.h" 31#include "api1/client2/CaptureSequencer.h" 32#include "api1/client2/CallbackProcessor.h" 33#include "api1/client2/ZslProcessor.h" 34#include "api1/client2/ZslProcessor3.h" 35 36#define ALOG1(...) ALOGD_IF(gLogLevel >= 1, __VA_ARGS__); 37#define ALOG2(...) ALOGD_IF(gLogLevel >= 2, __VA_ARGS__); 38 39namespace android { 40using namespace camera2; 41 42static int getCallingPid() { 43 return IPCThreadState::self()->getCallingPid(); 44} 45 46// Interface used by CameraService 47 48Camera2Client::Camera2Client(const sp<CameraService>& cameraService, 49 const sp<ICameraClient>& cameraClient, 50 const String16& clientPackageName, 51 int cameraId, 52 int cameraFacing, 53 int clientPid, 54 uid_t clientUid, 55 int servicePid, 56 int deviceVersion): 57 Camera2ClientBase(cameraService, cameraClient, clientPackageName, 58 cameraId, cameraFacing, clientPid, clientUid, servicePid), 59 mParameters(cameraId, cameraFacing), 60 mDeviceVersion(deviceVersion) 61{ 62 ATRACE_CALL(); 63 64 SharedParameters::Lock l(mParameters); 65 l.mParameters.state = Parameters::DISCONNECTED; 66} 67 68status_t Camera2Client::initialize(camera_module_t *module) 69{ 70 ATRACE_CALL(); 71 ALOGV("%s: Initializing client for camera %d", __FUNCTION__, mCameraId); 72 status_t res; 73 74 res = Camera2ClientBase::initialize(module); 75 if (res != OK) { 76 return res; 77 } 78 79 { 80 SharedParameters::Lock l(mParameters); 81 82 res = l.mParameters.initialize(&(mDevice->info())); 83 if (res != OK) { 84 ALOGE("%s: Camera %d: unable to build defaults: %s (%d)", 85 __FUNCTION__, mCameraId, strerror(-res), res); 86 return NO_INIT; 87 } 88 } 89 90 String8 threadName; 91 92 mStreamingProcessor = new StreamingProcessor(this); 93 threadName = String8::format("C2-%d-StreamProc", 94 mCameraId); 95 mStreamingProcessor->run(threadName.string()); 96 97 mFrameProcessor = new FrameProcessor(mDevice, this); 98 threadName = String8::format("C2-%d-FrameProc", 99 mCameraId); 100 mFrameProcessor->run(threadName.string()); 101 102 mCaptureSequencer = new CaptureSequencer(this); 103 threadName = String8::format("C2-%d-CaptureSeq", 104 mCameraId); 105 mCaptureSequencer->run(threadName.string()); 106 107 mJpegProcessor = new JpegProcessor(this, mCaptureSequencer); 108 threadName = String8::format("C2-%d-JpegProc", 109 mCameraId); 110 mJpegProcessor->run(threadName.string()); 111 112 switch (mDeviceVersion) { 113 case CAMERA_DEVICE_API_VERSION_2_0: { 114 sp<ZslProcessor> zslProc = 115 new ZslProcessor(this, mCaptureSequencer); 116 mZslProcessor = zslProc; 117 mZslProcessorThread = zslProc; 118 break; 119 } 120 case CAMERA_DEVICE_API_VERSION_3_0:{ 121 sp<ZslProcessor3> zslProc = 122 new ZslProcessor3(this, mCaptureSequencer); 123 mZslProcessor = zslProc; 124 mZslProcessorThread = zslProc; 125 break; 126 } 127 default: 128 break; 129 } 130 threadName = String8::format("C2-%d-ZslProc", 131 mCameraId); 132 mZslProcessorThread->run(threadName.string()); 133 134 mCallbackProcessor = new CallbackProcessor(this); 135 threadName = String8::format("C2-%d-CallbkProc", 136 mCameraId); 137 mCallbackProcessor->run(threadName.string()); 138 139 if (gLogLevel >= 1) { 140 SharedParameters::Lock l(mParameters); 141 ALOGD("%s: Default parameters converted from camera %d:", __FUNCTION__, 142 mCameraId); 143 ALOGD("%s", l.mParameters.paramsFlattened.string()); 144 } 145 146 return OK; 147} 148 149Camera2Client::~Camera2Client() { 150 ATRACE_CALL(); 151 ALOGV("~Camera2Client"); 152 153 mDestructionStarted = true; 154 155 disconnect(); 156 157 ALOGI("Camera %d: Closed", mCameraId); 158} 159 160status_t Camera2Client::dump(int fd, const Vector<String16>& args) { 161 String8 result; 162 result.appendFormat("Client2[%d] (%p) Client: %s PID: %d, dump:\n", 163 mCameraId, 164 getRemoteCallback()->asBinder().get(), 165 String8(mClientPackageName).string(), 166 mClientPid); 167 result.append(" State: "); 168#define CASE_APPEND_ENUM(x) case x: result.append(#x "\n"); break; 169 170 const Parameters& p = mParameters.unsafeAccess(); 171 172 result.append(Parameters::getStateName(p.state)); 173 174 result.append("\n Current parameters:\n"); 175 result.appendFormat(" Preview size: %d x %d\n", 176 p.previewWidth, p.previewHeight); 177 result.appendFormat(" Preview FPS range: %d - %d\n", 178 p.previewFpsRange[0], p.previewFpsRange[1]); 179 result.appendFormat(" Preview HAL pixel format: 0x%x\n", 180 p.previewFormat); 181 result.appendFormat(" Preview transform: %x\n", 182 p.previewTransform); 183 result.appendFormat(" Picture size: %d x %d\n", 184 p.pictureWidth, p.pictureHeight); 185 result.appendFormat(" Jpeg thumbnail size: %d x %d\n", 186 p.jpegThumbSize[0], p.jpegThumbSize[1]); 187 result.appendFormat(" Jpeg quality: %d, thumbnail quality: %d\n", 188 p.jpegQuality, p.jpegThumbQuality); 189 result.appendFormat(" Jpeg rotation: %d\n", p.jpegRotation); 190 result.appendFormat(" GPS tags %s\n", 191 p.gpsEnabled ? "enabled" : "disabled"); 192 if (p.gpsEnabled) { 193 result.appendFormat(" GPS lat x long x alt: %f x %f x %f\n", 194 p.gpsCoordinates[0], p.gpsCoordinates[1], 195 p.gpsCoordinates[2]); 196 result.appendFormat(" GPS timestamp: %lld\n", 197 p.gpsTimestamp); 198 result.appendFormat(" GPS processing method: %s\n", 199 p.gpsProcessingMethod.string()); 200 } 201 202 result.append(" White balance mode: "); 203 switch (p.wbMode) { 204 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_AUTO) 205 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_INCANDESCENT) 206 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_FLUORESCENT) 207 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_WARM_FLUORESCENT) 208 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_DAYLIGHT) 209 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_CLOUDY_DAYLIGHT) 210 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_TWILIGHT) 211 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_SHADE) 212 default: result.append("UNKNOWN\n"); 213 } 214 215 result.append(" Effect mode: "); 216 switch (p.effectMode) { 217 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_OFF) 218 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_MONO) 219 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_NEGATIVE) 220 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_SOLARIZE) 221 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_SEPIA) 222 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_POSTERIZE) 223 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_WHITEBOARD) 224 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_BLACKBOARD) 225 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_AQUA) 226 default: result.append("UNKNOWN\n"); 227 } 228 229 result.append(" Antibanding mode: "); 230 switch (p.antibandingMode) { 231 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_AUTO) 232 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_OFF) 233 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_50HZ) 234 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_60HZ) 235 default: result.append("UNKNOWN\n"); 236 } 237 238 result.append(" Scene mode: "); 239 switch (p.sceneMode) { 240 case ANDROID_CONTROL_SCENE_MODE_DISABLED: 241 result.append("AUTO\n"); break; 242 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_ACTION) 243 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_PORTRAIT) 244 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_LANDSCAPE) 245 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_NIGHT) 246 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_NIGHT_PORTRAIT) 247 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_THEATRE) 248 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_BEACH) 249 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SNOW) 250 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SUNSET) 251 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_STEADYPHOTO) 252 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_FIREWORKS) 253 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SPORTS) 254 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_PARTY) 255 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_CANDLELIGHT) 256 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_BARCODE) 257 default: result.append("UNKNOWN\n"); 258 } 259 260 result.append(" Flash mode: "); 261 switch (p.flashMode) { 262 CASE_APPEND_ENUM(Parameters::FLASH_MODE_OFF) 263 CASE_APPEND_ENUM(Parameters::FLASH_MODE_AUTO) 264 CASE_APPEND_ENUM(Parameters::FLASH_MODE_ON) 265 CASE_APPEND_ENUM(Parameters::FLASH_MODE_TORCH) 266 CASE_APPEND_ENUM(Parameters::FLASH_MODE_RED_EYE) 267 CASE_APPEND_ENUM(Parameters::FLASH_MODE_INVALID) 268 default: result.append("UNKNOWN\n"); 269 } 270 271 result.append(" Focus mode: "); 272 switch (p.focusMode) { 273 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_AUTO) 274 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_MACRO) 275 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_CONTINUOUS_VIDEO) 276 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_CONTINUOUS_PICTURE) 277 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_EDOF) 278 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_INFINITY) 279 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_FIXED) 280 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_INVALID) 281 default: result.append("UNKNOWN\n"); 282 } 283 284 result.append(" Focus state: "); 285 switch (p.focusState) { 286 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_INACTIVE) 287 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN) 288 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED) 289 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED) 290 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_ACTIVE_SCAN) 291 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED) 292 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED) 293 default: result.append("UNKNOWN\n"); 294 } 295 296 result.append(" Focusing areas:\n"); 297 for (size_t i = 0; i < p.focusingAreas.size(); i++) { 298 result.appendFormat(" [ (%d, %d, %d, %d), weight %d ]\n", 299 p.focusingAreas[i].left, 300 p.focusingAreas[i].top, 301 p.focusingAreas[i].right, 302 p.focusingAreas[i].bottom, 303 p.focusingAreas[i].weight); 304 } 305 306 result.appendFormat(" Exposure compensation index: %d\n", 307 p.exposureCompensation); 308 309 result.appendFormat(" AE lock %s, AWB lock %s\n", 310 p.autoExposureLock ? "enabled" : "disabled", 311 p.autoWhiteBalanceLock ? "enabled" : "disabled" ); 312 313 result.appendFormat(" Metering areas:\n"); 314 for (size_t i = 0; i < p.meteringAreas.size(); i++) { 315 result.appendFormat(" [ (%d, %d, %d, %d), weight %d ]\n", 316 p.meteringAreas[i].left, 317 p.meteringAreas[i].top, 318 p.meteringAreas[i].right, 319 p.meteringAreas[i].bottom, 320 p.meteringAreas[i].weight); 321 } 322 323 result.appendFormat(" Zoom index: %d\n", p.zoom); 324 result.appendFormat(" Video size: %d x %d\n", p.videoWidth, 325 p.videoHeight); 326 327 result.appendFormat(" Recording hint is %s\n", 328 p.recordingHint ? "set" : "not set"); 329 330 result.appendFormat(" Video stabilization is %s\n", 331 p.videoStabilization ? "enabled" : "disabled"); 332 333 result.appendFormat(" Selected still capture FPS range: %d - %d\n", 334 p.fastInfo.bestStillCaptureFpsRange[0], 335 p.fastInfo.bestStillCaptureFpsRange[1]); 336 337 result.append(" Current streams:\n"); 338 result.appendFormat(" Preview stream ID: %d\n", 339 getPreviewStreamId()); 340 result.appendFormat(" Capture stream ID: %d\n", 341 getCaptureStreamId()); 342 result.appendFormat(" Recording stream ID: %d\n", 343 getRecordingStreamId()); 344 345 result.append(" Quirks for this camera:\n"); 346 bool haveQuirk = false; 347 if (p.quirks.triggerAfWithAuto) { 348 result.appendFormat(" triggerAfWithAuto\n"); 349 haveQuirk = true; 350 } 351 if (p.quirks.useZslFormat) { 352 result.appendFormat(" useZslFormat\n"); 353 haveQuirk = true; 354 } 355 if (p.quirks.meteringCropRegion) { 356 result.appendFormat(" meteringCropRegion\n"); 357 haveQuirk = true; 358 } 359 if (p.quirks.partialResults) { 360 result.appendFormat(" usePartialResult\n"); 361 haveQuirk = true; 362 } 363 if (!haveQuirk) { 364 result.appendFormat(" none\n"); 365 } 366 367 write(fd, result.string(), result.size()); 368 369 mStreamingProcessor->dump(fd, args); 370 371 mCaptureSequencer->dump(fd, args); 372 373 mFrameProcessor->dump(fd, args); 374 375 mZslProcessor->dump(fd, args); 376 377 return dumpDevice(fd, args); 378#undef CASE_APPEND_ENUM 379} 380 381// ICamera interface 382 383void Camera2Client::disconnect() { 384 ATRACE_CALL(); 385 Mutex::Autolock icl(mBinderSerializationLock); 386 387 // Allow both client and the media server to disconnect at all times 388 int callingPid = getCallingPid(); 389 if (callingPid != mClientPid && callingPid != mServicePid) return; 390 391 if (mDevice == 0) return; 392 393 ALOGV("Camera %d: Shutting down", mCameraId); 394 395 /** 396 * disconnect() cannot call any methods that might need to promote a 397 * wp<Camera2Client>, since disconnect can be called from the destructor, at 398 * which point all such promotions will fail. 399 */ 400 401 stopPreviewL(); 402 403 { 404 SharedParameters::Lock l(mParameters); 405 if (l.mParameters.state == Parameters::DISCONNECTED) return; 406 l.mParameters.state = Parameters::DISCONNECTED; 407 } 408 409 mStreamingProcessor->deletePreviewStream(); 410 mStreamingProcessor->deleteRecordingStream(); 411 mJpegProcessor->deleteStream(); 412 mCallbackProcessor->deleteStream(); 413 mZslProcessor->deleteStream(); 414 415 mStreamingProcessor->requestExit(); 416 mFrameProcessor->requestExit(); 417 mCaptureSequencer->requestExit(); 418 mJpegProcessor->requestExit(); 419 mZslProcessorThread->requestExit(); 420 mCallbackProcessor->requestExit(); 421 422 ALOGV("Camera %d: Waiting for threads", mCameraId); 423 424 mStreamingProcessor->join(); 425 mFrameProcessor->join(); 426 mCaptureSequencer->join(); 427 mJpegProcessor->join(); 428 mZslProcessorThread->join(); 429 mCallbackProcessor->join(); 430 431 ALOGV("Camera %d: Disconnecting device", mCameraId); 432 433 mDevice->disconnect(); 434 435 mDevice.clear(); 436 437 CameraService::Client::disconnect(); 438} 439 440status_t Camera2Client::connect(const sp<ICameraClient>& client) { 441 ATRACE_CALL(); 442 ALOGV("%s: E", __FUNCTION__); 443 Mutex::Autolock icl(mBinderSerializationLock); 444 445 if (mClientPid != 0 && getCallingPid() != mClientPid) { 446 ALOGE("%s: Camera %d: Connection attempt from pid %d; " 447 "current locked to pid %d", __FUNCTION__, 448 mCameraId, getCallingPid(), mClientPid); 449 return BAD_VALUE; 450 } 451 452 mClientPid = getCallingPid(); 453 454 mRemoteCallback = client; 455 mSharedCameraCallbacks = client; 456 457 return OK; 458} 459 460status_t Camera2Client::lock() { 461 ATRACE_CALL(); 462 ALOGV("%s: E", __FUNCTION__); 463 Mutex::Autolock icl(mBinderSerializationLock); 464 ALOGV("%s: Camera %d: Lock call from pid %d; current client pid %d", 465 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 466 467 if (mClientPid == 0) { 468 mClientPid = getCallingPid(); 469 return OK; 470 } 471 472 if (mClientPid != getCallingPid()) { 473 ALOGE("%s: Camera %d: Lock call from pid %d; currently locked to pid %d", 474 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 475 return EBUSY; 476 } 477 478 return OK; 479} 480 481status_t Camera2Client::unlock() { 482 ATRACE_CALL(); 483 ALOGV("%s: E", __FUNCTION__); 484 Mutex::Autolock icl(mBinderSerializationLock); 485 ALOGV("%s: Camera %d: Unlock call from pid %d; current client pid %d", 486 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 487 488 if (mClientPid == getCallingPid()) { 489 SharedParameters::Lock l(mParameters); 490 if (l.mParameters.state == Parameters::RECORD || 491 l.mParameters.state == Parameters::VIDEO_SNAPSHOT) { 492 ALOGD("Not allowed to unlock camera during recording."); 493 return INVALID_OPERATION; 494 } 495 mClientPid = 0; 496 mRemoteCallback.clear(); 497 mSharedCameraCallbacks.clear(); 498 return OK; 499 } 500 501 ALOGE("%s: Camera %d: Unlock call from pid %d; currently locked to pid %d", 502 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 503 return EBUSY; 504} 505 506status_t Camera2Client::setPreviewTarget( 507 const sp<IGraphicBufferProducer>& bufferProducer) { 508 ATRACE_CALL(); 509 ALOGV("%s: E", __FUNCTION__); 510 Mutex::Autolock icl(mBinderSerializationLock); 511 status_t res; 512 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 513 514 sp<IBinder> binder; 515 sp<ANativeWindow> window; 516 if (bufferProducer != 0) { 517 binder = bufferProducer->asBinder(); 518 // Using controlledByApp flag to ensure that the buffer queue remains in 519 // async mode for the old camera API, where many applications depend 520 // on that behavior. 521 window = new Surface(bufferProducer, /*controlledByApp*/ true); 522 } 523 return setPreviewWindowL(binder, window); 524} 525 526status_t Camera2Client::setPreviewWindowL(const sp<IBinder>& binder, 527 sp<ANativeWindow> window) { 528 ATRACE_CALL(); 529 status_t res; 530 531 if (binder == mPreviewSurface) { 532 ALOGV("%s: Camera %d: New window is same as old window", 533 __FUNCTION__, mCameraId); 534 return NO_ERROR; 535 } 536 537 Parameters::State state; 538 { 539 SharedParameters::Lock l(mParameters); 540 state = l.mParameters.state; 541 } 542 switch (state) { 543 case Parameters::DISCONNECTED: 544 case Parameters::RECORD: 545 case Parameters::STILL_CAPTURE: 546 case Parameters::VIDEO_SNAPSHOT: 547 ALOGE("%s: Camera %d: Cannot set preview display while in state %s", 548 __FUNCTION__, mCameraId, 549 Parameters::getStateName(state)); 550 return INVALID_OPERATION; 551 case Parameters::STOPPED: 552 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 553 // OK 554 break; 555 case Parameters::PREVIEW: 556 // Already running preview - need to stop and create a new stream 557 res = stopStream(); 558 if (res != OK) { 559 ALOGE("%s: Unable to stop preview to swap windows: %s (%d)", 560 __FUNCTION__, strerror(-res), res); 561 return res; 562 } 563 state = Parameters::WAITING_FOR_PREVIEW_WINDOW; 564 break; 565 } 566 567 mPreviewSurface = binder; 568 res = mStreamingProcessor->setPreviewWindow(window); 569 if (res != OK) { 570 ALOGE("%s: Unable to set new preview window: %s (%d)", 571 __FUNCTION__, strerror(-res), res); 572 return res; 573 } 574 575 if (state == Parameters::WAITING_FOR_PREVIEW_WINDOW) { 576 SharedParameters::Lock l(mParameters); 577 l.mParameters.state = state; 578 return startPreviewL(l.mParameters, false); 579 } 580 581 return OK; 582} 583 584void Camera2Client::setPreviewCallbackFlag(int flag) { 585 ATRACE_CALL(); 586 ALOGV("%s: Camera %d: Flag 0x%x", __FUNCTION__, mCameraId, flag); 587 Mutex::Autolock icl(mBinderSerializationLock); 588 589 if ( checkPid(__FUNCTION__) != OK) return; 590 591 SharedParameters::Lock l(mParameters); 592 setPreviewCallbackFlagL(l.mParameters, flag); 593} 594 595void Camera2Client::setPreviewCallbackFlagL(Parameters ¶ms, int flag) { 596 status_t res = OK; 597 598 switch(params.state) { 599 case Parameters::STOPPED: 600 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 601 case Parameters::PREVIEW: 602 case Parameters::STILL_CAPTURE: 603 // OK 604 break; 605 default: 606 if (flag & CAMERA_FRAME_CALLBACK_FLAG_ENABLE_MASK) { 607 ALOGE("%s: Camera %d: Can't use preview callbacks " 608 "in state %d", __FUNCTION__, mCameraId, params.state); 609 return; 610 } 611 } 612 613 if (flag & CAMERA_FRAME_CALLBACK_FLAG_ONE_SHOT_MASK) { 614 ALOGV("%s: setting oneshot", __FUNCTION__); 615 params.previewCallbackOneShot = true; 616 } 617 if (params.previewCallbackFlags != (uint32_t)flag) { 618 619 if (params.previewCallbackSurface && flag != CAMERA_FRAME_CALLBACK_FLAG_NOOP) { 620 // Disable any existing preview callback window when enabling 621 // preview callback flags 622 res = mCallbackProcessor->setCallbackWindow(NULL); 623 if (res != OK) { 624 ALOGE("%s: Camera %d: Unable to clear preview callback surface:" 625 " %s (%d)", __FUNCTION__, mCameraId, strerror(-res), res); 626 return; 627 } 628 params.previewCallbackSurface = false; 629 } 630 631 params.previewCallbackFlags = flag; 632 633 if (params.state == Parameters::PREVIEW) { 634 res = startPreviewL(params, true); 635 if (res != OK) { 636 ALOGE("%s: Camera %d: Unable to refresh request in state %s", 637 __FUNCTION__, mCameraId, 638 Parameters::getStateName(params.state)); 639 } 640 } 641 } 642} 643 644status_t Camera2Client::setPreviewCallbackTarget( 645 const sp<IGraphicBufferProducer>& callbackProducer) { 646 ATRACE_CALL(); 647 ALOGV("%s: E", __FUNCTION__); 648 Mutex::Autolock icl(mBinderSerializationLock); 649 status_t res; 650 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 651 652 sp<ANativeWindow> window; 653 if (callbackProducer != 0) { 654 window = new Surface(callbackProducer); 655 } 656 657 res = mCallbackProcessor->setCallbackWindow(window); 658 if (res != OK) { 659 ALOGE("%s: Camera %d: Unable to set preview callback surface: %s (%d)", 660 __FUNCTION__, mCameraId, strerror(-res), res); 661 return res; 662 } 663 664 SharedParameters::Lock l(mParameters); 665 666 if (window != NULL) { 667 // Disable traditional callbacks when a valid callback target is given 668 l.mParameters.previewCallbackFlags = CAMERA_FRAME_CALLBACK_FLAG_NOOP; 669 l.mParameters.previewCallbackOneShot = false; 670 l.mParameters.previewCallbackSurface = true; 671 } else { 672 // Disable callback target if given a NULL interface. 673 l.mParameters.previewCallbackSurface = false; 674 } 675 676 switch(l.mParameters.state) { 677 case Parameters::PREVIEW: 678 res = startPreviewL(l.mParameters, true); 679 break; 680 case Parameters::RECORD: 681 case Parameters::VIDEO_SNAPSHOT: 682 res = startRecordingL(l.mParameters, true); 683 break; 684 default: 685 break; 686 } 687 if (res != OK) { 688 ALOGE("%s: Camera %d: Unable to refresh request in state %s", 689 __FUNCTION__, mCameraId, 690 Parameters::getStateName(l.mParameters.state)); 691 } 692 693 return OK; 694} 695 696 697status_t Camera2Client::startPreview() { 698 ATRACE_CALL(); 699 ALOGV("%s: E", __FUNCTION__); 700 Mutex::Autolock icl(mBinderSerializationLock); 701 status_t res; 702 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 703 SharedParameters::Lock l(mParameters); 704 return startPreviewL(l.mParameters, false); 705} 706 707status_t Camera2Client::startPreviewL(Parameters ¶ms, bool restart) { 708 ATRACE_CALL(); 709 status_t res; 710 711 ALOGV("%s: state == %d, restart = %d", __FUNCTION__, params.state, restart); 712 713 if ( (params.state == Parameters::PREVIEW || 714 params.state == Parameters::RECORD || 715 params.state == Parameters::VIDEO_SNAPSHOT) 716 && !restart) { 717 // Succeed attempt to re-enter a streaming state 718 ALOGI("%s: Camera %d: Preview already active, ignoring restart", 719 __FUNCTION__, mCameraId); 720 return OK; 721 } 722 if (params.state > Parameters::PREVIEW && !restart) { 723 ALOGE("%s: Can't start preview in state %s", 724 __FUNCTION__, 725 Parameters::getStateName(params.state)); 726 return INVALID_OPERATION; 727 } 728 729 if (!mStreamingProcessor->haveValidPreviewWindow()) { 730 params.state = Parameters::WAITING_FOR_PREVIEW_WINDOW; 731 return OK; 732 } 733 params.state = Parameters::STOPPED; 734 735 res = mStreamingProcessor->updatePreviewStream(params); 736 if (res != OK) { 737 ALOGE("%s: Camera %d: Unable to update preview stream: %s (%d)", 738 __FUNCTION__, mCameraId, strerror(-res), res); 739 return res; 740 } 741 742 // We could wait to create the JPEG output stream until first actual use 743 // (first takePicture call). However, this would substantially increase the 744 // first capture latency on HAL3 devices, and potentially on some HAL2 745 // devices. So create it unconditionally at preview start. As a drawback, 746 // this increases gralloc memory consumption for applications that don't 747 // ever take a picture. 748 // TODO: Find a better compromise, though this likely would involve HAL 749 // changes. 750 res = updateProcessorStream(mJpegProcessor, params); 751 if (res != OK) { 752 ALOGE("%s: Camera %d: Can't pre-configure still image " 753 "stream: %s (%d)", 754 __FUNCTION__, mCameraId, strerror(-res), res); 755 return res; 756 } 757 758 Vector<int32_t> outputStreams; 759 bool callbacksEnabled = (params.previewCallbackFlags & 760 CAMERA_FRAME_CALLBACK_FLAG_ENABLE_MASK) || 761 params.previewCallbackSurface; 762 763 if (callbacksEnabled) { 764 // Can't have recording stream hanging around when enabling callbacks, 765 // since it exceeds the max stream count on some devices. 766 if (mStreamingProcessor->getRecordingStreamId() != NO_STREAM) { 767 ALOGV("%s: Camera %d: Clearing out recording stream before " 768 "creating callback stream", __FUNCTION__, mCameraId); 769 res = mStreamingProcessor->stopStream(); 770 if (res != OK) { 771 ALOGE("%s: Camera %d: Can't stop streaming to delete " 772 "recording stream", __FUNCTION__, mCameraId); 773 return res; 774 } 775 res = mStreamingProcessor->deleteRecordingStream(); 776 if (res != OK) { 777 ALOGE("%s: Camera %d: Unable to delete recording stream before " 778 "enabling callbacks: %s (%d)", __FUNCTION__, mCameraId, 779 strerror(-res), res); 780 return res; 781 } 782 } 783 784 res = mCallbackProcessor->updateStream(params); 785 if (res != OK) { 786 ALOGE("%s: Camera %d: Unable to update callback stream: %s (%d)", 787 __FUNCTION__, mCameraId, strerror(-res), res); 788 return res; 789 } 790 outputStreams.push(getCallbackStreamId()); 791 } 792 if (params.zslMode && !params.recordingHint) { 793 res = updateProcessorStream(mZslProcessor, params); 794 if (res != OK) { 795 ALOGE("%s: Camera %d: Unable to update ZSL stream: %s (%d)", 796 __FUNCTION__, mCameraId, strerror(-res), res); 797 return res; 798 } 799 outputStreams.push(getZslStreamId()); 800 } 801 802 outputStreams.push(getPreviewStreamId()); 803 804 if (!params.recordingHint) { 805 if (!restart) { 806 res = mStreamingProcessor->updatePreviewRequest(params); 807 if (res != OK) { 808 ALOGE("%s: Camera %d: Can't set up preview request: " 809 "%s (%d)", __FUNCTION__, mCameraId, 810 strerror(-res), res); 811 return res; 812 } 813 } 814 res = mStreamingProcessor->startStream(StreamingProcessor::PREVIEW, 815 outputStreams); 816 } else { 817 if (!restart) { 818 res = mStreamingProcessor->updateRecordingRequest(params); 819 if (res != OK) { 820 ALOGE("%s: Camera %d: Can't set up preview request with " 821 "record hint: %s (%d)", __FUNCTION__, mCameraId, 822 strerror(-res), res); 823 return res; 824 } 825 } 826 res = mStreamingProcessor->startStream(StreamingProcessor::RECORD, 827 outputStreams); 828 } 829 if (res != OK) { 830 ALOGE("%s: Camera %d: Unable to start streaming preview: %s (%d)", 831 __FUNCTION__, mCameraId, strerror(-res), res); 832 return res; 833 } 834 835 params.state = Parameters::PREVIEW; 836 return OK; 837} 838 839void Camera2Client::stopPreview() { 840 ATRACE_CALL(); 841 ALOGV("%s: E", __FUNCTION__); 842 Mutex::Autolock icl(mBinderSerializationLock); 843 status_t res; 844 if ( (res = checkPid(__FUNCTION__) ) != OK) return; 845 stopPreviewL(); 846} 847 848void Camera2Client::stopPreviewL() { 849 ATRACE_CALL(); 850 status_t res; 851 const nsecs_t kStopCaptureTimeout = 3000000000LL; // 3 seconds 852 Parameters::State state; 853 { 854 SharedParameters::Lock l(mParameters); 855 state = l.mParameters.state; 856 } 857 858 switch (state) { 859 case Parameters::DISCONNECTED: 860 // Nothing to do. 861 break; 862 case Parameters::STOPPED: 863 case Parameters::VIDEO_SNAPSHOT: 864 case Parameters::STILL_CAPTURE: 865 mCaptureSequencer->waitUntilIdle(kStopCaptureTimeout); 866 // no break 867 case Parameters::RECORD: 868 case Parameters::PREVIEW: 869 syncWithDevice(); 870 res = stopStream(); 871 if (res != OK) { 872 ALOGE("%s: Camera %d: Can't stop streaming: %s (%d)", 873 __FUNCTION__, mCameraId, strerror(-res), res); 874 } 875 res = mDevice->waitUntilDrained(); 876 if (res != OK) { 877 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 878 __FUNCTION__, mCameraId, strerror(-res), res); 879 } 880 // no break 881 case Parameters::WAITING_FOR_PREVIEW_WINDOW: { 882 SharedParameters::Lock l(mParameters); 883 l.mParameters.state = Parameters::STOPPED; 884 commandStopFaceDetectionL(l.mParameters); 885 break; 886 } 887 default: 888 ALOGE("%s: Camera %d: Unknown state %d", __FUNCTION__, mCameraId, 889 state); 890 } 891} 892 893bool Camera2Client::previewEnabled() { 894 ATRACE_CALL(); 895 Mutex::Autolock icl(mBinderSerializationLock); 896 status_t res; 897 if ( (res = checkPid(__FUNCTION__) ) != OK) return false; 898 899 SharedParameters::Lock l(mParameters); 900 return l.mParameters.state == Parameters::PREVIEW; 901} 902 903status_t Camera2Client::storeMetaDataInBuffers(bool enabled) { 904 ATRACE_CALL(); 905 Mutex::Autolock icl(mBinderSerializationLock); 906 status_t res; 907 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 908 909 SharedParameters::Lock l(mParameters); 910 switch (l.mParameters.state) { 911 case Parameters::RECORD: 912 case Parameters::VIDEO_SNAPSHOT: 913 ALOGE("%s: Camera %d: Can't be called in state %s", 914 __FUNCTION__, mCameraId, 915 Parameters::getStateName(l.mParameters.state)); 916 return INVALID_OPERATION; 917 default: 918 // OK 919 break; 920 } 921 922 l.mParameters.storeMetadataInBuffers = enabled; 923 924 return OK; 925} 926 927status_t Camera2Client::startRecording() { 928 ATRACE_CALL(); 929 ALOGV("%s: E", __FUNCTION__); 930 Mutex::Autolock icl(mBinderSerializationLock); 931 status_t res; 932 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 933 SharedParameters::Lock l(mParameters); 934 935 return startRecordingL(l.mParameters, false); 936} 937 938status_t Camera2Client::startRecordingL(Parameters ¶ms, bool restart) { 939 status_t res; 940 941 ALOGV("%s: state == %d, restart = %d", __FUNCTION__, params.state, restart); 942 943 switch (params.state) { 944 case Parameters::STOPPED: 945 res = startPreviewL(params, false); 946 if (res != OK) return res; 947 break; 948 case Parameters::PREVIEW: 949 // Ready to go 950 break; 951 case Parameters::RECORD: 952 case Parameters::VIDEO_SNAPSHOT: 953 // OK to call this when recording is already on, just skip unless 954 // we're looking to restart 955 if (!restart) return OK; 956 break; 957 default: 958 ALOGE("%s: Camera %d: Can't start recording in state %s", 959 __FUNCTION__, mCameraId, 960 Parameters::getStateName(params.state)); 961 return INVALID_OPERATION; 962 }; 963 964 if (!params.storeMetadataInBuffers) { 965 ALOGE("%s: Camera %d: Recording only supported in metadata mode, but " 966 "non-metadata recording mode requested!", __FUNCTION__, 967 mCameraId); 968 return INVALID_OPERATION; 969 } 970 971 if (!restart) { 972 mCameraService->playSound(CameraService::SOUND_RECORDING); 973 mStreamingProcessor->updateRecordingRequest(params); 974 if (res != OK) { 975 ALOGE("%s: Camera %d: Unable to update recording request: %s (%d)", 976 __FUNCTION__, mCameraId, strerror(-res), res); 977 return res; 978 } 979 } 980 981 // Not all devices can support a preview callback stream and a recording 982 // stream at the same time, so assume none of them can. 983 if (mCallbackProcessor->getStreamId() != NO_STREAM) { 984 ALOGV("%s: Camera %d: Clearing out callback stream before " 985 "creating recording stream", __FUNCTION__, mCameraId); 986 res = mStreamingProcessor->stopStream(); 987 if (res != OK) { 988 ALOGE("%s: Camera %d: Can't stop streaming to delete callback stream", 989 __FUNCTION__, mCameraId); 990 return res; 991 } 992 res = mCallbackProcessor->deleteStream(); 993 if (res != OK) { 994 ALOGE("%s: Camera %d: Unable to delete callback stream before " 995 "record: %s (%d)", __FUNCTION__, mCameraId, 996 strerror(-res), res); 997 return res; 998 } 999 } 1000 // Disable callbacks if they're enabled; can't record and use callbacks, 1001 // and we can't fail record start without stagefright asserting. 1002 params.previewCallbackFlags = 0; 1003 1004 res = updateProcessorStream< 1005 StreamingProcessor, 1006 &StreamingProcessor::updateRecordingStream>(mStreamingProcessor, 1007 params); 1008 if (res != OK) { 1009 ALOGE("%s: Camera %d: Unable to update recording stream: %s (%d)", 1010 __FUNCTION__, mCameraId, strerror(-res), res); 1011 return res; 1012 } 1013 1014 Vector<int32_t> outputStreams; 1015 outputStreams.push(getPreviewStreamId()); 1016 outputStreams.push(getRecordingStreamId()); 1017 1018 res = mStreamingProcessor->startStream(StreamingProcessor::RECORD, 1019 outputStreams); 1020 if (res != OK) { 1021 ALOGE("%s: Camera %d: Unable to start recording stream: %s (%d)", 1022 __FUNCTION__, mCameraId, strerror(-res), res); 1023 return res; 1024 } 1025 1026 if (params.state < Parameters::RECORD) { 1027 params.state = Parameters::RECORD; 1028 } 1029 1030 return OK; 1031} 1032 1033void Camera2Client::stopRecording() { 1034 ATRACE_CALL(); 1035 ALOGV("%s: E", __FUNCTION__); 1036 Mutex::Autolock icl(mBinderSerializationLock); 1037 SharedParameters::Lock l(mParameters); 1038 1039 status_t res; 1040 if ( (res = checkPid(__FUNCTION__) ) != OK) return; 1041 1042 switch (l.mParameters.state) { 1043 case Parameters::RECORD: 1044 // OK to stop 1045 break; 1046 case Parameters::STOPPED: 1047 case Parameters::PREVIEW: 1048 case Parameters::STILL_CAPTURE: 1049 case Parameters::VIDEO_SNAPSHOT: 1050 default: 1051 ALOGE("%s: Camera %d: Can't stop recording in state %s", 1052 __FUNCTION__, mCameraId, 1053 Parameters::getStateName(l.mParameters.state)); 1054 return; 1055 }; 1056 1057 mCameraService->playSound(CameraService::SOUND_RECORDING); 1058 1059 res = startPreviewL(l.mParameters, true); 1060 if (res != OK) { 1061 ALOGE("%s: Camera %d: Unable to return to preview", 1062 __FUNCTION__, mCameraId); 1063 } 1064} 1065 1066bool Camera2Client::recordingEnabled() { 1067 ATRACE_CALL(); 1068 Mutex::Autolock icl(mBinderSerializationLock); 1069 1070 if ( checkPid(__FUNCTION__) != OK) return false; 1071 1072 return recordingEnabledL(); 1073} 1074 1075bool Camera2Client::recordingEnabledL() { 1076 ATRACE_CALL(); 1077 SharedParameters::Lock l(mParameters); 1078 1079 return (l.mParameters.state == Parameters::RECORD 1080 || l.mParameters.state == Parameters::VIDEO_SNAPSHOT); 1081} 1082 1083void Camera2Client::releaseRecordingFrame(const sp<IMemory>& mem) { 1084 ATRACE_CALL(); 1085 Mutex::Autolock icl(mBinderSerializationLock); 1086 if ( checkPid(__FUNCTION__) != OK) return; 1087 1088 mStreamingProcessor->releaseRecordingFrame(mem); 1089} 1090 1091status_t Camera2Client::autoFocus() { 1092 ATRACE_CALL(); 1093 Mutex::Autolock icl(mBinderSerializationLock); 1094 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1095 status_t res; 1096 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1097 1098 int triggerId; 1099 bool notifyImmediately = false; 1100 bool notifySuccess = false; 1101 { 1102 SharedParameters::Lock l(mParameters); 1103 if (l.mParameters.state < Parameters::PREVIEW) { 1104 return INVALID_OPERATION; 1105 } 1106 1107 /** 1108 * If the camera does not support auto-focus, it is a no-op and 1109 * onAutoFocus(boolean, Camera) callback will be called immediately 1110 * with a fake value of success set to true. 1111 * 1112 * Similarly, if focus mode is set to INFINITY, there's no reason to 1113 * bother the HAL. 1114 */ 1115 if (l.mParameters.focusMode == Parameters::FOCUS_MODE_FIXED || 1116 l.mParameters.focusMode == Parameters::FOCUS_MODE_INFINITY) { 1117 notifyImmediately = true; 1118 notifySuccess = true; 1119 } 1120 /** 1121 * If we're in CAF mode, and AF has already been locked, just fire back 1122 * the callback right away; the HAL would not send a notification since 1123 * no state change would happen on a AF trigger. 1124 */ 1125 if ( (l.mParameters.focusMode == Parameters::FOCUS_MODE_CONTINUOUS_PICTURE || 1126 l.mParameters.focusMode == Parameters::FOCUS_MODE_CONTINUOUS_VIDEO) && 1127 l.mParameters.focusState == ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED ) { 1128 notifyImmediately = true; 1129 notifySuccess = true; 1130 } 1131 /** 1132 * Send immediate notification back to client 1133 */ 1134 if (notifyImmediately) { 1135 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1136 if (l.mRemoteCallback != 0) { 1137 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS, 1138 notifySuccess ? 1 : 0, 0); 1139 } 1140 return OK; 1141 } 1142 /** 1143 * Handle quirk mode for AF in scene modes 1144 */ 1145 if (l.mParameters.quirks.triggerAfWithAuto && 1146 l.mParameters.sceneMode != ANDROID_CONTROL_SCENE_MODE_DISABLED && 1147 l.mParameters.focusMode != Parameters::FOCUS_MODE_AUTO && 1148 !l.mParameters.focusingAreas[0].isEmpty()) { 1149 ALOGV("%s: Quirk: Switching from focusMode %d to AUTO", 1150 __FUNCTION__, l.mParameters.focusMode); 1151 l.mParameters.shadowFocusMode = l.mParameters.focusMode; 1152 l.mParameters.focusMode = Parameters::FOCUS_MODE_AUTO; 1153 updateRequests(l.mParameters); 1154 } 1155 1156 l.mParameters.currentAfTriggerId = ++l.mParameters.afTriggerCounter; 1157 triggerId = l.mParameters.currentAfTriggerId; 1158 } 1159 ATRACE_ASYNC_BEGIN(kAutofocusLabel, triggerId); 1160 1161 syncWithDevice(); 1162 1163 mDevice->triggerAutofocus(triggerId); 1164 1165 return OK; 1166} 1167 1168status_t Camera2Client::cancelAutoFocus() { 1169 ATRACE_CALL(); 1170 Mutex::Autolock icl(mBinderSerializationLock); 1171 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1172 status_t res; 1173 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1174 1175 int triggerId; 1176 { 1177 SharedParameters::Lock l(mParameters); 1178 // Canceling does nothing in FIXED or INFINITY modes 1179 if (l.mParameters.focusMode == Parameters::FOCUS_MODE_FIXED || 1180 l.mParameters.focusMode == Parameters::FOCUS_MODE_INFINITY) { 1181 return OK; 1182 } 1183 1184 // An active AF trigger is canceled 1185 if (l.mParameters.afTriggerCounter == l.mParameters.currentAfTriggerId) { 1186 ATRACE_ASYNC_END(kAutofocusLabel, l.mParameters.currentAfTriggerId); 1187 } 1188 1189 triggerId = ++l.mParameters.afTriggerCounter; 1190 1191 // When using triggerAfWithAuto quirk, may need to reset focus mode to 1192 // the real state at this point. No need to cancel explicitly if 1193 // changing the AF mode. 1194 if (l.mParameters.shadowFocusMode != Parameters::FOCUS_MODE_INVALID) { 1195 ALOGV("%s: Quirk: Restoring focus mode to %d", __FUNCTION__, 1196 l.mParameters.shadowFocusMode); 1197 l.mParameters.focusMode = l.mParameters.shadowFocusMode; 1198 l.mParameters.shadowFocusMode = Parameters::FOCUS_MODE_INVALID; 1199 updateRequests(l.mParameters); 1200 1201 return OK; 1202 } 1203 } 1204 syncWithDevice(); 1205 1206 mDevice->triggerCancelAutofocus(triggerId); 1207 1208 return OK; 1209} 1210 1211status_t Camera2Client::takePicture(int msgType) { 1212 ATRACE_CALL(); 1213 Mutex::Autolock icl(mBinderSerializationLock); 1214 status_t res; 1215 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1216 1217 int takePictureCounter; 1218 { 1219 SharedParameters::Lock l(mParameters); 1220 switch (l.mParameters.state) { 1221 case Parameters::DISCONNECTED: 1222 case Parameters::STOPPED: 1223 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 1224 ALOGE("%s: Camera %d: Cannot take picture without preview enabled", 1225 __FUNCTION__, mCameraId); 1226 return INVALID_OPERATION; 1227 case Parameters::PREVIEW: 1228 // Good to go for takePicture 1229 res = commandStopFaceDetectionL(l.mParameters); 1230 if (res != OK) { 1231 ALOGE("%s: Camera %d: Unable to stop face detection for still capture", 1232 __FUNCTION__, mCameraId); 1233 return res; 1234 } 1235 l.mParameters.state = Parameters::STILL_CAPTURE; 1236 break; 1237 case Parameters::RECORD: 1238 // Good to go for video snapshot 1239 l.mParameters.state = Parameters::VIDEO_SNAPSHOT; 1240 break; 1241 case Parameters::STILL_CAPTURE: 1242 case Parameters::VIDEO_SNAPSHOT: 1243 ALOGE("%s: Camera %d: Already taking a picture", 1244 __FUNCTION__, mCameraId); 1245 return INVALID_OPERATION; 1246 } 1247 1248 ALOGV("%s: Camera %d: Starting picture capture", __FUNCTION__, mCameraId); 1249 1250 res = updateProcessorStream(mJpegProcessor, l.mParameters); 1251 if (res != OK) { 1252 ALOGE("%s: Camera %d: Can't set up still image stream: %s (%d)", 1253 __FUNCTION__, mCameraId, strerror(-res), res); 1254 return res; 1255 } 1256 takePictureCounter = ++l.mParameters.takePictureCounter; 1257 } 1258 1259 ATRACE_ASYNC_BEGIN(kTakepictureLabel, takePictureCounter); 1260 1261 // Need HAL to have correct settings before (possibly) triggering precapture 1262 syncWithDevice(); 1263 1264 res = mCaptureSequencer->startCapture(msgType); 1265 if (res != OK) { 1266 ALOGE("%s: Camera %d: Unable to start capture: %s (%d)", 1267 __FUNCTION__, mCameraId, strerror(-res), res); 1268 } 1269 1270 return res; 1271} 1272 1273status_t Camera2Client::setParameters(const String8& params) { 1274 ATRACE_CALL(); 1275 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1276 Mutex::Autolock icl(mBinderSerializationLock); 1277 status_t res; 1278 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1279 1280 SharedParameters::Lock l(mParameters); 1281 1282 res = l.mParameters.set(params); 1283 if (res != OK) return res; 1284 1285 res = updateRequests(l.mParameters); 1286 1287 return res; 1288} 1289 1290String8 Camera2Client::getParameters() const { 1291 ATRACE_CALL(); 1292 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1293 Mutex::Autolock icl(mBinderSerializationLock); 1294 if ( checkPid(__FUNCTION__) != OK) return String8(); 1295 1296 SharedParameters::ReadLock l(mParameters); 1297 1298 return l.mParameters.get(); 1299} 1300 1301status_t Camera2Client::sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) { 1302 ATRACE_CALL(); 1303 Mutex::Autolock icl(mBinderSerializationLock); 1304 status_t res; 1305 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1306 1307 ALOGV("%s: Camera %d: Command %d (%d, %d)", __FUNCTION__, mCameraId, 1308 cmd, arg1, arg2); 1309 1310 switch (cmd) { 1311 case CAMERA_CMD_START_SMOOTH_ZOOM: 1312 return commandStartSmoothZoomL(); 1313 case CAMERA_CMD_STOP_SMOOTH_ZOOM: 1314 return commandStopSmoothZoomL(); 1315 case CAMERA_CMD_SET_DISPLAY_ORIENTATION: 1316 return commandSetDisplayOrientationL(arg1); 1317 case CAMERA_CMD_ENABLE_SHUTTER_SOUND: 1318 return commandEnableShutterSoundL(arg1 == 1); 1319 case CAMERA_CMD_PLAY_RECORDING_SOUND: 1320 return commandPlayRecordingSoundL(); 1321 case CAMERA_CMD_START_FACE_DETECTION: 1322 return commandStartFaceDetectionL(arg1); 1323 case CAMERA_CMD_STOP_FACE_DETECTION: { 1324 SharedParameters::Lock l(mParameters); 1325 return commandStopFaceDetectionL(l.mParameters); 1326 } 1327 case CAMERA_CMD_ENABLE_FOCUS_MOVE_MSG: 1328 return commandEnableFocusMoveMsgL(arg1 == 1); 1329 case CAMERA_CMD_PING: 1330 return commandPingL(); 1331 case CAMERA_CMD_SET_VIDEO_BUFFER_COUNT: 1332 return commandSetVideoBufferCountL(arg1); 1333 default: 1334 ALOGE("%s: Unknown command %d (arguments %d, %d)", 1335 __FUNCTION__, cmd, arg1, arg2); 1336 return BAD_VALUE; 1337 } 1338} 1339 1340status_t Camera2Client::commandStartSmoothZoomL() { 1341 ALOGE("%s: Unimplemented!", __FUNCTION__); 1342 return OK; 1343} 1344 1345status_t Camera2Client::commandStopSmoothZoomL() { 1346 ALOGE("%s: Unimplemented!", __FUNCTION__); 1347 return OK; 1348} 1349 1350status_t Camera2Client::commandSetDisplayOrientationL(int degrees) { 1351 int transform = Parameters::degToTransform(degrees, 1352 mCameraFacing == CAMERA_FACING_FRONT); 1353 if (transform == -1) { 1354 ALOGE("%s: Camera %d: Error setting %d as display orientation value", 1355 __FUNCTION__, mCameraId, degrees); 1356 return BAD_VALUE; 1357 } 1358 SharedParameters::Lock l(mParameters); 1359 if (transform != l.mParameters.previewTransform && 1360 getPreviewStreamId() != NO_STREAM) { 1361 mDevice->setStreamTransform(getPreviewStreamId(), transform); 1362 } 1363 l.mParameters.previewTransform = transform; 1364 return OK; 1365} 1366 1367status_t Camera2Client::commandEnableShutterSoundL(bool enable) { 1368 SharedParameters::Lock l(mParameters); 1369 if (enable) { 1370 l.mParameters.playShutterSound = true; 1371 return OK; 1372 } 1373 1374 // Disabling shutter sound may not be allowed. In that case only 1375 // allow the mediaserver process to disable the sound. 1376 char value[PROPERTY_VALUE_MAX]; 1377 property_get("ro.camera.sound.forced", value, "0"); 1378 if (strncmp(value, "0", 2) != 0) { 1379 // Disabling shutter sound is not allowed. Deny if the current 1380 // process is not mediaserver. 1381 if (getCallingPid() != getpid()) { 1382 ALOGE("Failed to disable shutter sound. Permission denied (pid %d)", 1383 getCallingPid()); 1384 return PERMISSION_DENIED; 1385 } 1386 } 1387 1388 l.mParameters.playShutterSound = false; 1389 return OK; 1390} 1391 1392status_t Camera2Client::commandPlayRecordingSoundL() { 1393 mCameraService->playSound(CameraService::SOUND_RECORDING); 1394 return OK; 1395} 1396 1397status_t Camera2Client::commandStartFaceDetectionL(int /*type*/) { 1398 ALOGV("%s: Camera %d: Starting face detection", 1399 __FUNCTION__, mCameraId); 1400 status_t res; 1401 SharedParameters::Lock l(mParameters); 1402 switch (l.mParameters.state) { 1403 case Parameters::DISCONNECTED: 1404 case Parameters::STOPPED: 1405 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 1406 case Parameters::STILL_CAPTURE: 1407 ALOGE("%s: Camera %d: Cannot start face detection without preview active", 1408 __FUNCTION__, mCameraId); 1409 return INVALID_OPERATION; 1410 case Parameters::PREVIEW: 1411 case Parameters::RECORD: 1412 case Parameters::VIDEO_SNAPSHOT: 1413 // Good to go for starting face detect 1414 break; 1415 } 1416 // Ignoring type 1417 if (l.mParameters.fastInfo.bestFaceDetectMode == 1418 ANDROID_STATISTICS_FACE_DETECT_MODE_OFF) { 1419 ALOGE("%s: Camera %d: Face detection not supported", 1420 __FUNCTION__, mCameraId); 1421 return BAD_VALUE; 1422 } 1423 if (l.mParameters.enableFaceDetect) return OK; 1424 1425 l.mParameters.enableFaceDetect = true; 1426 1427 res = updateRequests(l.mParameters); 1428 1429 return res; 1430} 1431 1432status_t Camera2Client::commandStopFaceDetectionL(Parameters ¶ms) { 1433 status_t res = OK; 1434 ALOGV("%s: Camera %d: Stopping face detection", 1435 __FUNCTION__, mCameraId); 1436 1437 if (!params.enableFaceDetect) return OK; 1438 1439 params.enableFaceDetect = false; 1440 1441 if (params.state == Parameters::PREVIEW 1442 || params.state == Parameters::RECORD 1443 || params.state == Parameters::VIDEO_SNAPSHOT) { 1444 res = updateRequests(params); 1445 } 1446 1447 return res; 1448} 1449 1450status_t Camera2Client::commandEnableFocusMoveMsgL(bool enable) { 1451 SharedParameters::Lock l(mParameters); 1452 l.mParameters.enableFocusMoveMessages = enable; 1453 1454 return OK; 1455} 1456 1457status_t Camera2Client::commandPingL() { 1458 // Always ping back if access is proper and device is alive 1459 SharedParameters::Lock l(mParameters); 1460 if (l.mParameters.state != Parameters::DISCONNECTED) { 1461 return OK; 1462 } else { 1463 return NO_INIT; 1464 } 1465} 1466 1467status_t Camera2Client::commandSetVideoBufferCountL(size_t count) { 1468 if (recordingEnabledL()) { 1469 ALOGE("%s: Camera %d: Error setting video buffer count after " 1470 "recording was started", __FUNCTION__, mCameraId); 1471 return INVALID_OPERATION; 1472 } 1473 1474 return mStreamingProcessor->setRecordingBufferCount(count); 1475} 1476 1477/** Device-related methods */ 1478void Camera2Client::notifyAutoFocus(uint8_t newState, int triggerId) { 1479 ALOGV("%s: Autofocus state now %d, last trigger %d", 1480 __FUNCTION__, newState, triggerId); 1481 bool sendCompletedMessage = false; 1482 bool sendMovingMessage = false; 1483 1484 bool success = false; 1485 bool afInMotion = false; 1486 { 1487 SharedParameters::Lock l(mParameters); 1488 // Trace end of AF state 1489 char tmp[32]; 1490 if (l.mParameters.afStateCounter > 0) { 1491 camera_metadata_enum_snprint( 1492 ANDROID_CONTROL_AF_STATE, l.mParameters.focusState, tmp, sizeof(tmp)); 1493 ATRACE_ASYNC_END(tmp, l.mParameters.afStateCounter); 1494 } 1495 1496 // Update state 1497 l.mParameters.focusState = newState; 1498 l.mParameters.afStateCounter++; 1499 1500 // Trace start of AF state 1501 1502 camera_metadata_enum_snprint( 1503 ANDROID_CONTROL_AF_STATE, l.mParameters.focusState, tmp, sizeof(tmp)); 1504 ATRACE_ASYNC_BEGIN(tmp, l.mParameters.afStateCounter); 1505 1506 switch (l.mParameters.focusMode) { 1507 case Parameters::FOCUS_MODE_AUTO: 1508 case Parameters::FOCUS_MODE_MACRO: 1509 // Don't send notifications upstream if they're not for the current AF 1510 // trigger. For example, if cancel was called in between, or if we 1511 // already sent a notification about this AF call. 1512 if (triggerId != l.mParameters.currentAfTriggerId) break; 1513 switch (newState) { 1514 case ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED: 1515 success = true; 1516 // no break 1517 case ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED: 1518 sendCompletedMessage = true; 1519 l.mParameters.currentAfTriggerId = -1; 1520 break; 1521 case ANDROID_CONTROL_AF_STATE_ACTIVE_SCAN: 1522 // Just starting focusing, ignore 1523 break; 1524 case ANDROID_CONTROL_AF_STATE_INACTIVE: 1525 case ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN: 1526 case ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED: 1527 case ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED: 1528 default: 1529 // Unexpected in AUTO/MACRO mode 1530 ALOGE("%s: Unexpected AF state transition in AUTO/MACRO mode: %d", 1531 __FUNCTION__, newState); 1532 break; 1533 } 1534 break; 1535 case Parameters::FOCUS_MODE_CONTINUOUS_VIDEO: 1536 case Parameters::FOCUS_MODE_CONTINUOUS_PICTURE: 1537 switch (newState) { 1538 case ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED: 1539 success = true; 1540 // no break 1541 case ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED: 1542 // Don't send notifications upstream if they're not for 1543 // the current AF trigger. For example, if cancel was 1544 // called in between, or if we already sent a 1545 // notification about this AF call. 1546 // Send both a 'AF done' callback and a 'AF move' callback 1547 if (triggerId != l.mParameters.currentAfTriggerId) break; 1548 sendCompletedMessage = true; 1549 afInMotion = false; 1550 if (l.mParameters.enableFocusMoveMessages && 1551 l.mParameters.afInMotion) { 1552 sendMovingMessage = true; 1553 } 1554 l.mParameters.currentAfTriggerId = -1; 1555 break; 1556 case ANDROID_CONTROL_AF_STATE_INACTIVE: 1557 // Cancel was called, or we switched state; care if 1558 // currently moving 1559 afInMotion = false; 1560 if (l.mParameters.enableFocusMoveMessages && 1561 l.mParameters.afInMotion) { 1562 sendMovingMessage = true; 1563 } 1564 break; 1565 case ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN: 1566 // Start passive scan, inform upstream 1567 afInMotion = true; 1568 // no break 1569 case ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED: 1570 case ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED: 1571 // Stop passive scan, inform upstream 1572 if (l.mParameters.enableFocusMoveMessages) { 1573 sendMovingMessage = true; 1574 } 1575 break; 1576 } 1577 l.mParameters.afInMotion = afInMotion; 1578 break; 1579 case Parameters::FOCUS_MODE_EDOF: 1580 case Parameters::FOCUS_MODE_INFINITY: 1581 case Parameters::FOCUS_MODE_FIXED: 1582 default: 1583 if (newState != ANDROID_CONTROL_AF_STATE_INACTIVE) { 1584 ALOGE("%s: Unexpected AF state change %d " 1585 "(ID %d) in focus mode %d", 1586 __FUNCTION__, newState, triggerId, 1587 l.mParameters.focusMode); 1588 } 1589 } 1590 } 1591 if (sendMovingMessage) { 1592 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1593 if (l.mRemoteCallback != 0) { 1594 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS_MOVE, 1595 afInMotion ? 1 : 0, 0); 1596 } 1597 } 1598 if (sendCompletedMessage) { 1599 ATRACE_ASYNC_END(kAutofocusLabel, triggerId); 1600 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1601 if (l.mRemoteCallback != 0) { 1602 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS, 1603 success ? 1 : 0, 0); 1604 } 1605 } 1606} 1607 1608void Camera2Client::notifyAutoExposure(uint8_t newState, int triggerId) { 1609 ALOGV("%s: Autoexposure state now %d, last trigger %d", 1610 __FUNCTION__, newState, triggerId); 1611 mCaptureSequencer->notifyAutoExposure(newState, triggerId); 1612} 1613 1614camera2::SharedParameters& Camera2Client::getParameters() { 1615 return mParameters; 1616} 1617 1618int Camera2Client::getPreviewStreamId() const { 1619 return mStreamingProcessor->getPreviewStreamId(); 1620} 1621 1622int Camera2Client::getCaptureStreamId() const { 1623 return mJpegProcessor->getStreamId(); 1624} 1625 1626int Camera2Client::getCallbackStreamId() const { 1627 return mCallbackProcessor->getStreamId(); 1628} 1629 1630int Camera2Client::getRecordingStreamId() const { 1631 return mStreamingProcessor->getRecordingStreamId(); 1632} 1633 1634int Camera2Client::getZslStreamId() const { 1635 return mZslProcessor->getStreamId(); 1636} 1637 1638status_t Camera2Client::registerFrameListener(int32_t minId, int32_t maxId, 1639 wp<camera2::FrameProcessor::FilteredListener> listener) { 1640 return mFrameProcessor->registerListener(minId, maxId, listener); 1641} 1642 1643status_t Camera2Client::removeFrameListener(int32_t minId, int32_t maxId, 1644 wp<camera2::FrameProcessor::FilteredListener> listener) { 1645 return mFrameProcessor->removeListener(minId, maxId, listener); 1646} 1647 1648status_t Camera2Client::stopStream() { 1649 return mStreamingProcessor->stopStream(); 1650} 1651 1652const int32_t Camera2Client::kPreviewRequestIdStart; 1653const int32_t Camera2Client::kPreviewRequestIdEnd; 1654const int32_t Camera2Client::kRecordingRequestIdStart; 1655const int32_t Camera2Client::kRecordingRequestIdEnd; 1656const int32_t Camera2Client::kCaptureRequestIdStart; 1657const int32_t Camera2Client::kCaptureRequestIdEnd; 1658 1659/** Utility methods */ 1660 1661status_t Camera2Client::updateRequests(Parameters ¶ms) { 1662 status_t res; 1663 1664 ALOGV("%s: Camera %d: state = %d", __FUNCTION__, getCameraId(), params.state); 1665 1666 res = mStreamingProcessor->incrementStreamingIds(); 1667 if (res != OK) { 1668 ALOGE("%s: Camera %d: Unable to increment request IDs: %s (%d)", 1669 __FUNCTION__, mCameraId, strerror(-res), res); 1670 return res; 1671 } 1672 1673 res = mStreamingProcessor->updatePreviewRequest(params); 1674 if (res != OK) { 1675 ALOGE("%s: Camera %d: Unable to update preview request: %s (%d)", 1676 __FUNCTION__, mCameraId, strerror(-res), res); 1677 return res; 1678 } 1679 res = mStreamingProcessor->updateRecordingRequest(params); 1680 if (res != OK) { 1681 ALOGE("%s: Camera %d: Unable to update recording request: %s (%d)", 1682 __FUNCTION__, mCameraId, strerror(-res), res); 1683 return res; 1684 } 1685 1686 if (params.state == Parameters::PREVIEW) { 1687 res = startPreviewL(params, true); 1688 if (res != OK) { 1689 ALOGE("%s: Camera %d: Error streaming new preview request: %s (%d)", 1690 __FUNCTION__, mCameraId, strerror(-res), res); 1691 return res; 1692 } 1693 } else if (params.state == Parameters::RECORD || 1694 params.state == Parameters::VIDEO_SNAPSHOT) { 1695 res = startRecordingL(params, true); 1696 if (res != OK) { 1697 ALOGE("%s: Camera %d: Error streaming new record request: %s (%d)", 1698 __FUNCTION__, mCameraId, strerror(-res), res); 1699 return res; 1700 } 1701 } 1702 return res; 1703} 1704 1705 1706size_t Camera2Client::calculateBufferSize(int width, int height, 1707 int format, int stride) { 1708 switch (format) { 1709 case HAL_PIXEL_FORMAT_YCbCr_422_SP: // NV16 1710 return width * height * 2; 1711 case HAL_PIXEL_FORMAT_YCrCb_420_SP: // NV21 1712 return width * height * 3 / 2; 1713 case HAL_PIXEL_FORMAT_YCbCr_422_I: // YUY2 1714 return width * height * 2; 1715 case HAL_PIXEL_FORMAT_YV12: { // YV12 1716 size_t ySize = stride * height; 1717 size_t uvStride = (stride / 2 + 0xF) & ~0xF; 1718 size_t uvSize = uvStride * height / 2; 1719 return ySize + uvSize * 2; 1720 } 1721 case HAL_PIXEL_FORMAT_RGB_565: 1722 return width * height * 2; 1723 case HAL_PIXEL_FORMAT_RGBA_8888: 1724 return width * height * 4; 1725 case HAL_PIXEL_FORMAT_RAW_SENSOR: 1726 return width * height * 2; 1727 default: 1728 ALOGE("%s: Unknown preview format: %x", 1729 __FUNCTION__, format); 1730 return 0; 1731 } 1732} 1733 1734status_t Camera2Client::syncWithDevice() { 1735 ATRACE_CALL(); 1736 const nsecs_t kMaxSyncTimeout = 500000000; // 500 ms 1737 status_t res; 1738 1739 int32_t activeRequestId = mStreamingProcessor->getActiveRequestId(); 1740 if (activeRequestId == 0) return OK; 1741 1742 res = mDevice->waitUntilRequestReceived(activeRequestId, kMaxSyncTimeout); 1743 if (res == TIMED_OUT) { 1744 ALOGE("%s: Camera %d: Timed out waiting sync with HAL", 1745 __FUNCTION__, mCameraId); 1746 } else if (res != OK) { 1747 ALOGE("%s: Camera %d: Error while waiting to sync with HAL", 1748 __FUNCTION__, mCameraId); 1749 } 1750 return res; 1751} 1752 1753template <typename ProcessorT> 1754status_t Camera2Client::updateProcessorStream(sp<ProcessorT> processor, 1755 camera2::Parameters params) { 1756 // No default template arguments until C++11, so we need this overload 1757 return updateProcessorStream<ProcessorT, &ProcessorT::updateStream>( 1758 processor, params); 1759} 1760 1761template <typename ProcessorT, 1762 status_t (ProcessorT::*updateStreamF)(const Parameters &)> 1763status_t Camera2Client::updateProcessorStream(sp<ProcessorT> processor, 1764 Parameters params) { 1765 status_t res; 1766 1767 // Get raw pointer since sp<T> doesn't have operator->* 1768 ProcessorT *processorPtr = processor.get(); 1769 res = (processorPtr->*updateStreamF)(params); 1770 1771 /** 1772 * Can't update the stream if it's busy? 1773 * 1774 * Then we need to stop the device (by temporarily clearing the request 1775 * queue) and then try again. Resume streaming once we're done. 1776 */ 1777 if (res == -EBUSY) { 1778 ALOGV("%s: Camera %d: Pausing to update stream", __FUNCTION__, 1779 mCameraId); 1780 res = mStreamingProcessor->togglePauseStream(/*pause*/true); 1781 if (res != OK) { 1782 ALOGE("%s: Camera %d: Can't pause streaming: %s (%d)", 1783 __FUNCTION__, mCameraId, strerror(-res), res); 1784 } 1785 1786 res = mDevice->waitUntilDrained(); 1787 if (res != OK) { 1788 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 1789 __FUNCTION__, mCameraId, strerror(-res), res); 1790 } 1791 1792 res = (processorPtr->*updateStreamF)(params); 1793 if (res != OK) { 1794 ALOGE("%s: Camera %d: Failed to update processing stream " 1795 " despite having halted streaming first: %s (%d)", 1796 __FUNCTION__, mCameraId, strerror(-res), res); 1797 } 1798 1799 res = mStreamingProcessor->togglePauseStream(/*pause*/false); 1800 if (res != OK) { 1801 ALOGE("%s: Camera %d: Can't unpause streaming: %s (%d)", 1802 __FUNCTION__, mCameraId, strerror(-res), res); 1803 } 1804 } 1805 1806 return res; 1807} 1808 1809const char* Camera2Client::kAutofocusLabel = "autofocus"; 1810const char* Camera2Client::kTakepictureLabel = "take_picture"; 1811 1812} // namespace android 1813