Camera2Client.cpp revision dfe715582943b3fc9bab91f88257a3bba6c6deef
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_UNSUPPORTED: 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->requestExit(); 410 mFrameProcessor->requestExit(); 411 mCaptureSequencer->requestExit(); 412 mJpegProcessor->requestExit(); 413 mZslProcessorThread->requestExit(); 414 mCallbackProcessor->requestExit(); 415 416 ALOGV("Camera %d: Waiting for threads", mCameraId); 417 418 mStreamingProcessor->join(); 419 mFrameProcessor->join(); 420 mCaptureSequencer->join(); 421 mJpegProcessor->join(); 422 mZslProcessorThread->join(); 423 mCallbackProcessor->join(); 424 425 ALOGV("Camera %d: Deleting streams", mCameraId); 426 427 mStreamingProcessor->deletePreviewStream(); 428 mStreamingProcessor->deleteRecordingStream(); 429 mJpegProcessor->deleteStream(); 430 mCallbackProcessor->deleteStream(); 431 mZslProcessor->deleteStream(); 432 433 ALOGV("Camera %d: Disconnecting device", mCameraId); 434 435 mDevice->disconnect(); 436 437 mDevice.clear(); 438 439 CameraService::Client::disconnect(); 440} 441 442status_t Camera2Client::connect(const sp<ICameraClient>& client) { 443 ATRACE_CALL(); 444 ALOGV("%s: E", __FUNCTION__); 445 Mutex::Autolock icl(mBinderSerializationLock); 446 447 if (mClientPid != 0 && getCallingPid() != mClientPid) { 448 ALOGE("%s: Camera %d: Connection attempt from pid %d; " 449 "current locked to pid %d", __FUNCTION__, 450 mCameraId, getCallingPid(), mClientPid); 451 return BAD_VALUE; 452 } 453 454 mClientPid = getCallingPid(); 455 456 mRemoteCallback = client; 457 mSharedCameraCallbacks = client; 458 459 return OK; 460} 461 462status_t Camera2Client::lock() { 463 ATRACE_CALL(); 464 ALOGV("%s: E", __FUNCTION__); 465 Mutex::Autolock icl(mBinderSerializationLock); 466 ALOGV("%s: Camera %d: Lock call from pid %d; current client pid %d", 467 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 468 469 if (mClientPid == 0) { 470 mClientPid = getCallingPid(); 471 return OK; 472 } 473 474 if (mClientPid != getCallingPid()) { 475 ALOGE("%s: Camera %d: Lock call from pid %d; currently locked to pid %d", 476 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 477 return EBUSY; 478 } 479 480 return OK; 481} 482 483status_t Camera2Client::unlock() { 484 ATRACE_CALL(); 485 ALOGV("%s: E", __FUNCTION__); 486 Mutex::Autolock icl(mBinderSerializationLock); 487 ALOGV("%s: Camera %d: Unlock call from pid %d; current client pid %d", 488 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 489 490 if (mClientPid == getCallingPid()) { 491 SharedParameters::Lock l(mParameters); 492 if (l.mParameters.state == Parameters::RECORD || 493 l.mParameters.state == Parameters::VIDEO_SNAPSHOT) { 494 ALOGD("Not allowed to unlock camera during recording."); 495 return INVALID_OPERATION; 496 } 497 mClientPid = 0; 498 mRemoteCallback.clear(); 499 mSharedCameraCallbacks.clear(); 500 return OK; 501 } 502 503 ALOGE("%s: Camera %d: Unlock call from pid %d; currently locked to pid %d", 504 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 505 return EBUSY; 506} 507 508status_t Camera2Client::setPreviewTarget( 509 const sp<IGraphicBufferProducer>& bufferProducer) { 510 ATRACE_CALL(); 511 ALOGV("%s: E", __FUNCTION__); 512 Mutex::Autolock icl(mBinderSerializationLock); 513 status_t res; 514 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 515 516 sp<IBinder> binder; 517 sp<ANativeWindow> window; 518 if (bufferProducer != 0) { 519 binder = bufferProducer->asBinder(); 520 // Using controlledByApp flag to ensure that the buffer queue remains in 521 // async mode for the old camera API, where many applications depend 522 // on that behavior. 523 window = new Surface(bufferProducer, /*controlledByApp*/ true); 524 } 525 return setPreviewWindowL(binder, window); 526} 527 528status_t Camera2Client::setPreviewWindowL(const sp<IBinder>& binder, 529 sp<ANativeWindow> window) { 530 ATRACE_CALL(); 531 status_t res; 532 533 if (binder == mPreviewSurface) { 534 ALOGV("%s: Camera %d: New window is same as old window", 535 __FUNCTION__, mCameraId); 536 return NO_ERROR; 537 } 538 539 Parameters::State state; 540 { 541 SharedParameters::Lock l(mParameters); 542 state = l.mParameters.state; 543 } 544 switch (state) { 545 case Parameters::DISCONNECTED: 546 case Parameters::RECORD: 547 case Parameters::STILL_CAPTURE: 548 case Parameters::VIDEO_SNAPSHOT: 549 ALOGE("%s: Camera %d: Cannot set preview display while in state %s", 550 __FUNCTION__, mCameraId, 551 Parameters::getStateName(state)); 552 return INVALID_OPERATION; 553 case Parameters::STOPPED: 554 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 555 // OK 556 break; 557 case Parameters::PREVIEW: 558 // Already running preview - need to stop and create a new stream 559 res = stopStream(); 560 if (res != OK) { 561 ALOGE("%s: Unable to stop preview to swap windows: %s (%d)", 562 __FUNCTION__, strerror(-res), res); 563 return res; 564 } 565 state = Parameters::WAITING_FOR_PREVIEW_WINDOW; 566 break; 567 } 568 569 mPreviewSurface = binder; 570 res = mStreamingProcessor->setPreviewWindow(window); 571 if (res != OK) { 572 ALOGE("%s: Unable to set new preview window: %s (%d)", 573 __FUNCTION__, strerror(-res), res); 574 return res; 575 } 576 577 if (state == Parameters::WAITING_FOR_PREVIEW_WINDOW) { 578 SharedParameters::Lock l(mParameters); 579 l.mParameters.state = state; 580 return startPreviewL(l.mParameters, false); 581 } 582 583 return OK; 584} 585 586void Camera2Client::setPreviewCallbackFlag(int flag) { 587 ATRACE_CALL(); 588 ALOGV("%s: Camera %d: Flag 0x%x", __FUNCTION__, mCameraId, flag); 589 Mutex::Autolock icl(mBinderSerializationLock); 590 591 if ( checkPid(__FUNCTION__) != OK) return; 592 593 SharedParameters::Lock l(mParameters); 594 setPreviewCallbackFlagL(l.mParameters, flag); 595} 596 597void Camera2Client::setPreviewCallbackFlagL(Parameters ¶ms, int flag) { 598 status_t res = OK; 599 600 switch(params.state) { 601 case Parameters::STOPPED: 602 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 603 case Parameters::PREVIEW: 604 case Parameters::STILL_CAPTURE: 605 // OK 606 break; 607 default: 608 if (flag & CAMERA_FRAME_CALLBACK_FLAG_ENABLE_MASK) { 609 ALOGE("%s: Camera %d: Can't use preview callbacks " 610 "in state %d", __FUNCTION__, mCameraId, params.state); 611 return; 612 } 613 } 614 615 if (flag & CAMERA_FRAME_CALLBACK_FLAG_ONE_SHOT_MASK) { 616 ALOGV("%s: setting oneshot", __FUNCTION__); 617 params.previewCallbackOneShot = true; 618 } 619 if (params.previewCallbackFlags != (uint32_t)flag) { 620 621 if (params.previewCallbackSurface && flag != CAMERA_FRAME_CALLBACK_FLAG_NOOP) { 622 // Disable any existing preview callback window when enabling 623 // preview callback flags 624 res = mCallbackProcessor->setCallbackWindow(NULL); 625 if (res != OK) { 626 ALOGE("%s: Camera %d: Unable to clear preview callback surface:" 627 " %s (%d)", __FUNCTION__, mCameraId, strerror(-res), res); 628 return; 629 } 630 params.previewCallbackSurface = false; 631 } 632 633 params.previewCallbackFlags = flag; 634 635 if (params.state == Parameters::PREVIEW) { 636 res = startPreviewL(params, true); 637 if (res != OK) { 638 ALOGE("%s: Camera %d: Unable to refresh request in state %s", 639 __FUNCTION__, mCameraId, 640 Parameters::getStateName(params.state)); 641 } 642 } 643 } 644} 645 646status_t Camera2Client::setPreviewCallbackTarget( 647 const sp<IGraphicBufferProducer>& callbackProducer) { 648 ATRACE_CALL(); 649 ALOGV("%s: E", __FUNCTION__); 650 Mutex::Autolock icl(mBinderSerializationLock); 651 status_t res; 652 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 653 654 sp<ANativeWindow> window; 655 if (callbackProducer != 0) { 656 window = new Surface(callbackProducer); 657 } 658 659 res = mCallbackProcessor->setCallbackWindow(window); 660 if (res != OK) { 661 ALOGE("%s: Camera %d: Unable to set preview callback surface: %s (%d)", 662 __FUNCTION__, mCameraId, strerror(-res), res); 663 return res; 664 } 665 666 SharedParameters::Lock l(mParameters); 667 668 if (window != NULL) { 669 // Disable traditional callbacks when a valid callback target is given 670 l.mParameters.previewCallbackFlags = CAMERA_FRAME_CALLBACK_FLAG_NOOP; 671 l.mParameters.previewCallbackOneShot = false; 672 l.mParameters.previewCallbackSurface = true; 673 } else { 674 // Disable callback target if given a NULL interface. 675 l.mParameters.previewCallbackSurface = false; 676 } 677 678 switch(l.mParameters.state) { 679 case Parameters::PREVIEW: 680 res = startPreviewL(l.mParameters, true); 681 break; 682 case Parameters::RECORD: 683 case Parameters::VIDEO_SNAPSHOT: 684 res = startRecordingL(l.mParameters, true); 685 break; 686 default: 687 break; 688 } 689 if (res != OK) { 690 ALOGE("%s: Camera %d: Unable to refresh request in state %s", 691 __FUNCTION__, mCameraId, 692 Parameters::getStateName(l.mParameters.state)); 693 } 694 695 return OK; 696} 697 698 699status_t Camera2Client::startPreview() { 700 ATRACE_CALL(); 701 ALOGV("%s: E", __FUNCTION__); 702 Mutex::Autolock icl(mBinderSerializationLock); 703 status_t res; 704 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 705 SharedParameters::Lock l(mParameters); 706 return startPreviewL(l.mParameters, false); 707} 708 709status_t Camera2Client::startPreviewL(Parameters ¶ms, bool restart) { 710 ATRACE_CALL(); 711 status_t res; 712 713 ALOGV("%s: state == %d, restart = %d", __FUNCTION__, params.state, restart); 714 715 if ( (params.state == Parameters::PREVIEW || 716 params.state == Parameters::RECORD || 717 params.state == Parameters::VIDEO_SNAPSHOT) 718 && !restart) { 719 // Succeed attempt to re-enter a streaming state 720 ALOGI("%s: Camera %d: Preview already active, ignoring restart", 721 __FUNCTION__, mCameraId); 722 return OK; 723 } 724 if (params.state > Parameters::PREVIEW && !restart) { 725 ALOGE("%s: Can't start preview in state %s", 726 __FUNCTION__, 727 Parameters::getStateName(params.state)); 728 return INVALID_OPERATION; 729 } 730 731 if (!mStreamingProcessor->haveValidPreviewWindow()) { 732 params.state = Parameters::WAITING_FOR_PREVIEW_WINDOW; 733 return OK; 734 } 735 params.state = Parameters::STOPPED; 736 737 res = mStreamingProcessor->updatePreviewStream(params); 738 if (res != OK) { 739 ALOGE("%s: Camera %d: Unable to update preview stream: %s (%d)", 740 __FUNCTION__, mCameraId, strerror(-res), res); 741 return res; 742 } 743 744 // We could wait to create the JPEG output stream until first actual use 745 // (first takePicture call). However, this would substantially increase the 746 // first capture latency on HAL3 devices, and potentially on some HAL2 747 // devices. So create it unconditionally at preview start. As a drawback, 748 // this increases gralloc memory consumption for applications that don't 749 // ever take a picture. 750 // TODO: Find a better compromise, though this likely would involve HAL 751 // changes. 752 res = updateProcessorStream(mJpegProcessor, params); 753 if (res != OK) { 754 ALOGE("%s: Camera %d: Can't pre-configure still image " 755 "stream: %s (%d)", 756 __FUNCTION__, mCameraId, strerror(-res), res); 757 return res; 758 } 759 760 Vector<int32_t> outputStreams; 761 bool callbacksEnabled = (params.previewCallbackFlags & 762 CAMERA_FRAME_CALLBACK_FLAG_ENABLE_MASK) || 763 params.previewCallbackSurface; 764 765 if (callbacksEnabled) { 766 // Can't have recording stream hanging around when enabling callbacks, 767 // since it exceeds the max stream count on some devices. 768 if (mStreamingProcessor->getRecordingStreamId() != NO_STREAM) { 769 ALOGV("%s: Camera %d: Clearing out recording stream before " 770 "creating callback stream", __FUNCTION__, mCameraId); 771 res = mStreamingProcessor->stopStream(); 772 if (res != OK) { 773 ALOGE("%s: Camera %d: Can't stop streaming to delete " 774 "recording stream", __FUNCTION__, mCameraId); 775 return res; 776 } 777 res = mStreamingProcessor->deleteRecordingStream(); 778 if (res != OK) { 779 ALOGE("%s: Camera %d: Unable to delete recording stream before " 780 "enabling callbacks: %s (%d)", __FUNCTION__, mCameraId, 781 strerror(-res), res); 782 return res; 783 } 784 } 785 786 res = mCallbackProcessor->updateStream(params); 787 if (res != OK) { 788 ALOGE("%s: Camera %d: Unable to update callback stream: %s (%d)", 789 __FUNCTION__, mCameraId, strerror(-res), res); 790 return res; 791 } 792 outputStreams.push(getCallbackStreamId()); 793 } 794 if (params.zslMode && !params.recordingHint) { 795 res = updateProcessorStream(mZslProcessor, params); 796 if (res != OK) { 797 ALOGE("%s: Camera %d: Unable to update ZSL stream: %s (%d)", 798 __FUNCTION__, mCameraId, strerror(-res), res); 799 return res; 800 } 801 outputStreams.push(getZslStreamId()); 802 } 803 804 outputStreams.push(getPreviewStreamId()); 805 806 if (!params.recordingHint) { 807 if (!restart) { 808 res = mStreamingProcessor->updatePreviewRequest(params); 809 if (res != OK) { 810 ALOGE("%s: Camera %d: Can't set up preview request: " 811 "%s (%d)", __FUNCTION__, mCameraId, 812 strerror(-res), res); 813 return res; 814 } 815 } 816 res = mStreamingProcessor->startStream(StreamingProcessor::PREVIEW, 817 outputStreams); 818 } else { 819 if (!restart) { 820 res = mStreamingProcessor->updateRecordingRequest(params); 821 if (res != OK) { 822 ALOGE("%s: Camera %d: Can't set up preview request with " 823 "record hint: %s (%d)", __FUNCTION__, mCameraId, 824 strerror(-res), res); 825 return res; 826 } 827 } 828 res = mStreamingProcessor->startStream(StreamingProcessor::RECORD, 829 outputStreams); 830 } 831 if (res != OK) { 832 ALOGE("%s: Camera %d: Unable to start streaming preview: %s (%d)", 833 __FUNCTION__, mCameraId, strerror(-res), res); 834 return res; 835 } 836 837 params.state = Parameters::PREVIEW; 838 return OK; 839} 840 841void Camera2Client::stopPreview() { 842 ATRACE_CALL(); 843 ALOGV("%s: E", __FUNCTION__); 844 Mutex::Autolock icl(mBinderSerializationLock); 845 status_t res; 846 if ( (res = checkPid(__FUNCTION__) ) != OK) return; 847 stopPreviewL(); 848} 849 850void Camera2Client::stopPreviewL() { 851 ATRACE_CALL(); 852 status_t res; 853 const nsecs_t kStopCaptureTimeout = 3000000000LL; // 3 seconds 854 Parameters::State state; 855 { 856 SharedParameters::Lock l(mParameters); 857 state = l.mParameters.state; 858 } 859 860 switch (state) { 861 case Parameters::DISCONNECTED: 862 // Nothing to do. 863 break; 864 case Parameters::STOPPED: 865 case Parameters::VIDEO_SNAPSHOT: 866 case Parameters::STILL_CAPTURE: 867 mCaptureSequencer->waitUntilIdle(kStopCaptureTimeout); 868 // no break 869 case Parameters::RECORD: 870 case Parameters::PREVIEW: 871 syncWithDevice(); 872 res = stopStream(); 873 if (res != OK) { 874 ALOGE("%s: Camera %d: Can't stop streaming: %s (%d)", 875 __FUNCTION__, mCameraId, strerror(-res), res); 876 } 877 res = mDevice->waitUntilDrained(); 878 if (res != OK) { 879 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 880 __FUNCTION__, mCameraId, strerror(-res), res); 881 } 882 // no break 883 case Parameters::WAITING_FOR_PREVIEW_WINDOW: { 884 SharedParameters::Lock l(mParameters); 885 l.mParameters.state = Parameters::STOPPED; 886 commandStopFaceDetectionL(l.mParameters); 887 break; 888 } 889 default: 890 ALOGE("%s: Camera %d: Unknown state %d", __FUNCTION__, mCameraId, 891 state); 892 } 893} 894 895bool Camera2Client::previewEnabled() { 896 ATRACE_CALL(); 897 Mutex::Autolock icl(mBinderSerializationLock); 898 status_t res; 899 if ( (res = checkPid(__FUNCTION__) ) != OK) return false; 900 901 SharedParameters::Lock l(mParameters); 902 return l.mParameters.state == Parameters::PREVIEW; 903} 904 905status_t Camera2Client::storeMetaDataInBuffers(bool enabled) { 906 ATRACE_CALL(); 907 Mutex::Autolock icl(mBinderSerializationLock); 908 status_t res; 909 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 910 911 SharedParameters::Lock l(mParameters); 912 switch (l.mParameters.state) { 913 case Parameters::RECORD: 914 case Parameters::VIDEO_SNAPSHOT: 915 ALOGE("%s: Camera %d: Can't be called in state %s", 916 __FUNCTION__, mCameraId, 917 Parameters::getStateName(l.mParameters.state)); 918 return INVALID_OPERATION; 919 default: 920 // OK 921 break; 922 } 923 924 l.mParameters.storeMetadataInBuffers = enabled; 925 926 return OK; 927} 928 929status_t Camera2Client::startRecording() { 930 ATRACE_CALL(); 931 ALOGV("%s: E", __FUNCTION__); 932 Mutex::Autolock icl(mBinderSerializationLock); 933 status_t res; 934 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 935 SharedParameters::Lock l(mParameters); 936 937 return startRecordingL(l.mParameters, false); 938} 939 940status_t Camera2Client::startRecordingL(Parameters ¶ms, bool restart) { 941 status_t res; 942 943 ALOGV("%s: state == %d, restart = %d", __FUNCTION__, params.state, restart); 944 945 switch (params.state) { 946 case Parameters::STOPPED: 947 res = startPreviewL(params, false); 948 if (res != OK) return res; 949 break; 950 case Parameters::PREVIEW: 951 // Ready to go 952 break; 953 case Parameters::RECORD: 954 case Parameters::VIDEO_SNAPSHOT: 955 // OK to call this when recording is already on, just skip unless 956 // we're looking to restart 957 if (!restart) return OK; 958 break; 959 default: 960 ALOGE("%s: Camera %d: Can't start recording in state %s", 961 __FUNCTION__, mCameraId, 962 Parameters::getStateName(params.state)); 963 return INVALID_OPERATION; 964 }; 965 966 if (!params.storeMetadataInBuffers) { 967 ALOGE("%s: Camera %d: Recording only supported in metadata mode, but " 968 "non-metadata recording mode requested!", __FUNCTION__, 969 mCameraId); 970 return INVALID_OPERATION; 971 } 972 973 if (!restart) { 974 mCameraService->playSound(CameraService::SOUND_RECORDING); 975 mStreamingProcessor->updateRecordingRequest(params); 976 if (res != OK) { 977 ALOGE("%s: Camera %d: Unable to update recording request: %s (%d)", 978 __FUNCTION__, mCameraId, strerror(-res), res); 979 return res; 980 } 981 } 982 983 // Not all devices can support a preview callback stream and a recording 984 // stream at the same time, so assume none of them can. 985 if (mCallbackProcessor->getStreamId() != NO_STREAM) { 986 ALOGV("%s: Camera %d: Clearing out callback stream before " 987 "creating recording stream", __FUNCTION__, mCameraId); 988 res = mStreamingProcessor->stopStream(); 989 if (res != OK) { 990 ALOGE("%s: Camera %d: Can't stop streaming to delete callback stream", 991 __FUNCTION__, mCameraId); 992 return res; 993 } 994 res = mCallbackProcessor->deleteStream(); 995 if (res != OK) { 996 ALOGE("%s: Camera %d: Unable to delete callback stream before " 997 "record: %s (%d)", __FUNCTION__, mCameraId, 998 strerror(-res), res); 999 return res; 1000 } 1001 } 1002 // Disable callbacks if they're enabled; can't record and use callbacks, 1003 // and we can't fail record start without stagefright asserting. 1004 params.previewCallbackFlags = 0; 1005 1006 res = updateProcessorStream< 1007 StreamingProcessor, 1008 &StreamingProcessor::updateRecordingStream>(mStreamingProcessor, 1009 params); 1010 if (res != OK) { 1011 ALOGE("%s: Camera %d: Unable to update recording stream: %s (%d)", 1012 __FUNCTION__, mCameraId, strerror(-res), res); 1013 return res; 1014 } 1015 1016 Vector<int32_t> outputStreams; 1017 outputStreams.push(getPreviewStreamId()); 1018 outputStreams.push(getRecordingStreamId()); 1019 1020 res = mStreamingProcessor->startStream(StreamingProcessor::RECORD, 1021 outputStreams); 1022 if (res != OK) { 1023 ALOGE("%s: Camera %d: Unable to start recording stream: %s (%d)", 1024 __FUNCTION__, mCameraId, strerror(-res), res); 1025 return res; 1026 } 1027 1028 if (params.state < Parameters::RECORD) { 1029 params.state = Parameters::RECORD; 1030 } 1031 1032 return OK; 1033} 1034 1035void Camera2Client::stopRecording() { 1036 ATRACE_CALL(); 1037 ALOGV("%s: E", __FUNCTION__); 1038 Mutex::Autolock icl(mBinderSerializationLock); 1039 SharedParameters::Lock l(mParameters); 1040 1041 status_t res; 1042 if ( (res = checkPid(__FUNCTION__) ) != OK) return; 1043 1044 switch (l.mParameters.state) { 1045 case Parameters::RECORD: 1046 // OK to stop 1047 break; 1048 case Parameters::STOPPED: 1049 case Parameters::PREVIEW: 1050 case Parameters::STILL_CAPTURE: 1051 case Parameters::VIDEO_SNAPSHOT: 1052 default: 1053 ALOGE("%s: Camera %d: Can't stop recording in state %s", 1054 __FUNCTION__, mCameraId, 1055 Parameters::getStateName(l.mParameters.state)); 1056 return; 1057 }; 1058 1059 mCameraService->playSound(CameraService::SOUND_RECORDING); 1060 1061 res = startPreviewL(l.mParameters, true); 1062 if (res != OK) { 1063 ALOGE("%s: Camera %d: Unable to return to preview", 1064 __FUNCTION__, mCameraId); 1065 } 1066} 1067 1068bool Camera2Client::recordingEnabled() { 1069 ATRACE_CALL(); 1070 Mutex::Autolock icl(mBinderSerializationLock); 1071 1072 if ( checkPid(__FUNCTION__) != OK) return false; 1073 1074 return recordingEnabledL(); 1075} 1076 1077bool Camera2Client::recordingEnabledL() { 1078 ATRACE_CALL(); 1079 SharedParameters::Lock l(mParameters); 1080 1081 return (l.mParameters.state == Parameters::RECORD 1082 || l.mParameters.state == Parameters::VIDEO_SNAPSHOT); 1083} 1084 1085void Camera2Client::releaseRecordingFrame(const sp<IMemory>& mem) { 1086 ATRACE_CALL(); 1087 Mutex::Autolock icl(mBinderSerializationLock); 1088 if ( checkPid(__FUNCTION__) != OK) return; 1089 1090 mStreamingProcessor->releaseRecordingFrame(mem); 1091} 1092 1093status_t Camera2Client::autoFocus() { 1094 ATRACE_CALL(); 1095 Mutex::Autolock icl(mBinderSerializationLock); 1096 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1097 status_t res; 1098 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1099 1100 int triggerId; 1101 bool notifyImmediately = false; 1102 bool notifySuccess = false; 1103 { 1104 SharedParameters::Lock l(mParameters); 1105 if (l.mParameters.state < Parameters::PREVIEW) { 1106 return INVALID_OPERATION; 1107 } 1108 1109 /** 1110 * If the camera does not support auto-focus, it is a no-op and 1111 * onAutoFocus(boolean, Camera) callback will be called immediately 1112 * with a fake value of success set to true. 1113 * 1114 * Similarly, if focus mode is set to INFINITY, there's no reason to 1115 * bother the HAL. 1116 */ 1117 if (l.mParameters.focusMode == Parameters::FOCUS_MODE_FIXED || 1118 l.mParameters.focusMode == Parameters::FOCUS_MODE_INFINITY) { 1119 notifyImmediately = true; 1120 notifySuccess = true; 1121 } 1122 /** 1123 * If we're in CAF mode, and AF has already been locked, just fire back 1124 * the callback right away; the HAL would not send a notification since 1125 * no state change would happen on a AF trigger. 1126 */ 1127 if ( (l.mParameters.focusMode == Parameters::FOCUS_MODE_CONTINUOUS_PICTURE || 1128 l.mParameters.focusMode == Parameters::FOCUS_MODE_CONTINUOUS_VIDEO) && 1129 l.mParameters.focusState == ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED ) { 1130 notifyImmediately = true; 1131 notifySuccess = true; 1132 } 1133 /** 1134 * Send immediate notification back to client 1135 */ 1136 if (notifyImmediately) { 1137 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1138 if (l.mRemoteCallback != 0) { 1139 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS, 1140 notifySuccess ? 1 : 0, 0); 1141 } 1142 return OK; 1143 } 1144 /** 1145 * Handle quirk mode for AF in scene modes 1146 */ 1147 if (l.mParameters.quirks.triggerAfWithAuto && 1148 l.mParameters.sceneMode != ANDROID_CONTROL_SCENE_MODE_UNSUPPORTED && 1149 l.mParameters.focusMode != Parameters::FOCUS_MODE_AUTO && 1150 !l.mParameters.focusingAreas[0].isEmpty()) { 1151 ALOGV("%s: Quirk: Switching from focusMode %d to AUTO", 1152 __FUNCTION__, l.mParameters.focusMode); 1153 l.mParameters.shadowFocusMode = l.mParameters.focusMode; 1154 l.mParameters.focusMode = Parameters::FOCUS_MODE_AUTO; 1155 updateRequests(l.mParameters); 1156 } 1157 1158 l.mParameters.currentAfTriggerId = ++l.mParameters.afTriggerCounter; 1159 triggerId = l.mParameters.currentAfTriggerId; 1160 } 1161 ATRACE_ASYNC_BEGIN(kAutofocusLabel, triggerId); 1162 1163 syncWithDevice(); 1164 1165 mDevice->triggerAutofocus(triggerId); 1166 1167 return OK; 1168} 1169 1170status_t Camera2Client::cancelAutoFocus() { 1171 ATRACE_CALL(); 1172 Mutex::Autolock icl(mBinderSerializationLock); 1173 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1174 status_t res; 1175 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1176 1177 int triggerId; 1178 { 1179 SharedParameters::Lock l(mParameters); 1180 // Canceling does nothing in FIXED or INFINITY modes 1181 if (l.mParameters.focusMode == Parameters::FOCUS_MODE_FIXED || 1182 l.mParameters.focusMode == Parameters::FOCUS_MODE_INFINITY) { 1183 return OK; 1184 } 1185 1186 // An active AF trigger is canceled 1187 if (l.mParameters.afTriggerCounter == l.mParameters.currentAfTriggerId) { 1188 ATRACE_ASYNC_END(kAutofocusLabel, l.mParameters.currentAfTriggerId); 1189 } 1190 1191 triggerId = ++l.mParameters.afTriggerCounter; 1192 1193 // When using triggerAfWithAuto quirk, may need to reset focus mode to 1194 // the real state at this point. No need to cancel explicitly if 1195 // changing the AF mode. 1196 if (l.mParameters.shadowFocusMode != Parameters::FOCUS_MODE_INVALID) { 1197 ALOGV("%s: Quirk: Restoring focus mode to %d", __FUNCTION__, 1198 l.mParameters.shadowFocusMode); 1199 l.mParameters.focusMode = l.mParameters.shadowFocusMode; 1200 l.mParameters.shadowFocusMode = Parameters::FOCUS_MODE_INVALID; 1201 updateRequests(l.mParameters); 1202 1203 return OK; 1204 } 1205 } 1206 syncWithDevice(); 1207 1208 mDevice->triggerCancelAutofocus(triggerId); 1209 1210 return OK; 1211} 1212 1213status_t Camera2Client::takePicture(int msgType) { 1214 ATRACE_CALL(); 1215 Mutex::Autolock icl(mBinderSerializationLock); 1216 status_t res; 1217 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1218 1219 int takePictureCounter; 1220 { 1221 SharedParameters::Lock l(mParameters); 1222 switch (l.mParameters.state) { 1223 case Parameters::DISCONNECTED: 1224 case Parameters::STOPPED: 1225 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 1226 ALOGE("%s: Camera %d: Cannot take picture without preview enabled", 1227 __FUNCTION__, mCameraId); 1228 return INVALID_OPERATION; 1229 case Parameters::PREVIEW: 1230 // Good to go for takePicture 1231 res = commandStopFaceDetectionL(l.mParameters); 1232 if (res != OK) { 1233 ALOGE("%s: Camera %d: Unable to stop face detection for still capture", 1234 __FUNCTION__, mCameraId); 1235 return res; 1236 } 1237 l.mParameters.state = Parameters::STILL_CAPTURE; 1238 break; 1239 case Parameters::RECORD: 1240 // Good to go for video snapshot 1241 l.mParameters.state = Parameters::VIDEO_SNAPSHOT; 1242 break; 1243 case Parameters::STILL_CAPTURE: 1244 case Parameters::VIDEO_SNAPSHOT: 1245 ALOGE("%s: Camera %d: Already taking a picture", 1246 __FUNCTION__, mCameraId); 1247 return INVALID_OPERATION; 1248 } 1249 1250 ALOGV("%s: Camera %d: Starting picture capture", __FUNCTION__, mCameraId); 1251 1252 res = updateProcessorStream(mJpegProcessor, l.mParameters); 1253 if (res != OK) { 1254 ALOGE("%s: Camera %d: Can't set up still image stream: %s (%d)", 1255 __FUNCTION__, mCameraId, strerror(-res), res); 1256 return res; 1257 } 1258 takePictureCounter = ++l.mParameters.takePictureCounter; 1259 } 1260 1261 ATRACE_ASYNC_BEGIN(kTakepictureLabel, takePictureCounter); 1262 1263 // Need HAL to have correct settings before (possibly) triggering precapture 1264 syncWithDevice(); 1265 1266 res = mCaptureSequencer->startCapture(msgType); 1267 if (res != OK) { 1268 ALOGE("%s: Camera %d: Unable to start capture: %s (%d)", 1269 __FUNCTION__, mCameraId, strerror(-res), res); 1270 } 1271 1272 return res; 1273} 1274 1275status_t Camera2Client::setParameters(const String8& params) { 1276 ATRACE_CALL(); 1277 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1278 Mutex::Autolock icl(mBinderSerializationLock); 1279 status_t res; 1280 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1281 1282 SharedParameters::Lock l(mParameters); 1283 1284 res = l.mParameters.set(params); 1285 if (res != OK) return res; 1286 1287 res = updateRequests(l.mParameters); 1288 1289 return res; 1290} 1291 1292String8 Camera2Client::getParameters() const { 1293 ATRACE_CALL(); 1294 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1295 Mutex::Autolock icl(mBinderSerializationLock); 1296 if ( checkPid(__FUNCTION__) != OK) return String8(); 1297 1298 SharedParameters::ReadLock l(mParameters); 1299 1300 return l.mParameters.get(); 1301} 1302 1303status_t Camera2Client::sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) { 1304 ATRACE_CALL(); 1305 Mutex::Autolock icl(mBinderSerializationLock); 1306 status_t res; 1307 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1308 1309 ALOGV("%s: Camera %d: Command %d (%d, %d)", __FUNCTION__, mCameraId, 1310 cmd, arg1, arg2); 1311 1312 switch (cmd) { 1313 case CAMERA_CMD_START_SMOOTH_ZOOM: 1314 return commandStartSmoothZoomL(); 1315 case CAMERA_CMD_STOP_SMOOTH_ZOOM: 1316 return commandStopSmoothZoomL(); 1317 case CAMERA_CMD_SET_DISPLAY_ORIENTATION: 1318 return commandSetDisplayOrientationL(arg1); 1319 case CAMERA_CMD_ENABLE_SHUTTER_SOUND: 1320 return commandEnableShutterSoundL(arg1 == 1); 1321 case CAMERA_CMD_PLAY_RECORDING_SOUND: 1322 return commandPlayRecordingSoundL(); 1323 case CAMERA_CMD_START_FACE_DETECTION: 1324 return commandStartFaceDetectionL(arg1); 1325 case CAMERA_CMD_STOP_FACE_DETECTION: { 1326 SharedParameters::Lock l(mParameters); 1327 return commandStopFaceDetectionL(l.mParameters); 1328 } 1329 case CAMERA_CMD_ENABLE_FOCUS_MOVE_MSG: 1330 return commandEnableFocusMoveMsgL(arg1 == 1); 1331 case CAMERA_CMD_PING: 1332 return commandPingL(); 1333 case CAMERA_CMD_SET_VIDEO_BUFFER_COUNT: 1334 return commandSetVideoBufferCountL(arg1); 1335 default: 1336 ALOGE("%s: Unknown command %d (arguments %d, %d)", 1337 __FUNCTION__, cmd, arg1, arg2); 1338 return BAD_VALUE; 1339 } 1340} 1341 1342status_t Camera2Client::commandStartSmoothZoomL() { 1343 ALOGE("%s: Unimplemented!", __FUNCTION__); 1344 return OK; 1345} 1346 1347status_t Camera2Client::commandStopSmoothZoomL() { 1348 ALOGE("%s: Unimplemented!", __FUNCTION__); 1349 return OK; 1350} 1351 1352status_t Camera2Client::commandSetDisplayOrientationL(int degrees) { 1353 int transform = Parameters::degToTransform(degrees, 1354 mCameraFacing == CAMERA_FACING_FRONT); 1355 if (transform == -1) { 1356 ALOGE("%s: Camera %d: Error setting %d as display orientation value", 1357 __FUNCTION__, mCameraId, degrees); 1358 return BAD_VALUE; 1359 } 1360 SharedParameters::Lock l(mParameters); 1361 if (transform != l.mParameters.previewTransform && 1362 getPreviewStreamId() != NO_STREAM) { 1363 mDevice->setStreamTransform(getPreviewStreamId(), transform); 1364 } 1365 l.mParameters.previewTransform = transform; 1366 return OK; 1367} 1368 1369status_t Camera2Client::commandEnableShutterSoundL(bool enable) { 1370 SharedParameters::Lock l(mParameters); 1371 if (enable) { 1372 l.mParameters.playShutterSound = true; 1373 return OK; 1374 } 1375 1376 // Disabling shutter sound may not be allowed. In that case only 1377 // allow the mediaserver process to disable the sound. 1378 char value[PROPERTY_VALUE_MAX]; 1379 property_get("ro.camera.sound.forced", value, "0"); 1380 if (strncmp(value, "0", 2) != 0) { 1381 // Disabling shutter sound is not allowed. Deny if the current 1382 // process is not mediaserver. 1383 if (getCallingPid() != getpid()) { 1384 ALOGE("Failed to disable shutter sound. Permission denied (pid %d)", 1385 getCallingPid()); 1386 return PERMISSION_DENIED; 1387 } 1388 } 1389 1390 l.mParameters.playShutterSound = false; 1391 return OK; 1392} 1393 1394status_t Camera2Client::commandPlayRecordingSoundL() { 1395 mCameraService->playSound(CameraService::SOUND_RECORDING); 1396 return OK; 1397} 1398 1399status_t Camera2Client::commandStartFaceDetectionL(int /*type*/) { 1400 ALOGV("%s: Camera %d: Starting face detection", 1401 __FUNCTION__, mCameraId); 1402 status_t res; 1403 SharedParameters::Lock l(mParameters); 1404 switch (l.mParameters.state) { 1405 case Parameters::DISCONNECTED: 1406 case Parameters::STOPPED: 1407 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 1408 case Parameters::STILL_CAPTURE: 1409 ALOGE("%s: Camera %d: Cannot start face detection without preview active", 1410 __FUNCTION__, mCameraId); 1411 return INVALID_OPERATION; 1412 case Parameters::PREVIEW: 1413 case Parameters::RECORD: 1414 case Parameters::VIDEO_SNAPSHOT: 1415 // Good to go for starting face detect 1416 break; 1417 } 1418 // Ignoring type 1419 if (l.mParameters.fastInfo.bestFaceDetectMode == 1420 ANDROID_STATISTICS_FACE_DETECT_MODE_OFF) { 1421 ALOGE("%s: Camera %d: Face detection not supported", 1422 __FUNCTION__, mCameraId); 1423 return BAD_VALUE; 1424 } 1425 if (l.mParameters.enableFaceDetect) return OK; 1426 1427 l.mParameters.enableFaceDetect = true; 1428 1429 res = updateRequests(l.mParameters); 1430 1431 return res; 1432} 1433 1434status_t Camera2Client::commandStopFaceDetectionL(Parameters ¶ms) { 1435 status_t res = OK; 1436 ALOGV("%s: Camera %d: Stopping face detection", 1437 __FUNCTION__, mCameraId); 1438 1439 if (!params.enableFaceDetect) return OK; 1440 1441 params.enableFaceDetect = false; 1442 1443 if (params.state == Parameters::PREVIEW 1444 || params.state == Parameters::RECORD 1445 || params.state == Parameters::VIDEO_SNAPSHOT) { 1446 res = updateRequests(params); 1447 } 1448 1449 return res; 1450} 1451 1452status_t Camera2Client::commandEnableFocusMoveMsgL(bool enable) { 1453 SharedParameters::Lock l(mParameters); 1454 l.mParameters.enableFocusMoveMessages = enable; 1455 1456 return OK; 1457} 1458 1459status_t Camera2Client::commandPingL() { 1460 // Always ping back if access is proper and device is alive 1461 SharedParameters::Lock l(mParameters); 1462 if (l.mParameters.state != Parameters::DISCONNECTED) { 1463 return OK; 1464 } else { 1465 return NO_INIT; 1466 } 1467} 1468 1469status_t Camera2Client::commandSetVideoBufferCountL(size_t count) { 1470 if (recordingEnabledL()) { 1471 ALOGE("%s: Camera %d: Error setting video buffer count after " 1472 "recording was started", __FUNCTION__, mCameraId); 1473 return INVALID_OPERATION; 1474 } 1475 1476 return mStreamingProcessor->setRecordingBufferCount(count); 1477} 1478 1479/** Device-related methods */ 1480void Camera2Client::notifyAutoFocus(uint8_t newState, int triggerId) { 1481 ALOGV("%s: Autofocus state now %d, last trigger %d", 1482 __FUNCTION__, newState, triggerId); 1483 bool sendCompletedMessage = false; 1484 bool sendMovingMessage = false; 1485 1486 bool success = false; 1487 bool afInMotion = false; 1488 { 1489 SharedParameters::Lock l(mParameters); 1490 // Trace end of AF state 1491 char tmp[32]; 1492 if (l.mParameters.afStateCounter > 0) { 1493 camera_metadata_enum_snprint( 1494 ANDROID_CONTROL_AF_STATE, l.mParameters.focusState, tmp, sizeof(tmp)); 1495 ATRACE_ASYNC_END(tmp, l.mParameters.afStateCounter); 1496 } 1497 1498 // Update state 1499 l.mParameters.focusState = newState; 1500 l.mParameters.afStateCounter++; 1501 1502 // Trace start of AF state 1503 1504 camera_metadata_enum_snprint( 1505 ANDROID_CONTROL_AF_STATE, l.mParameters.focusState, tmp, sizeof(tmp)); 1506 ATRACE_ASYNC_BEGIN(tmp, l.mParameters.afStateCounter); 1507 1508 switch (l.mParameters.focusMode) { 1509 case Parameters::FOCUS_MODE_AUTO: 1510 case Parameters::FOCUS_MODE_MACRO: 1511 // Don't send notifications upstream if they're not for the current AF 1512 // trigger. For example, if cancel was called in between, or if we 1513 // already sent a notification about this AF call. 1514 if (triggerId != l.mParameters.currentAfTriggerId) break; 1515 switch (newState) { 1516 case ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED: 1517 success = true; 1518 // no break 1519 case ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED: 1520 sendCompletedMessage = true; 1521 l.mParameters.currentAfTriggerId = -1; 1522 break; 1523 case ANDROID_CONTROL_AF_STATE_ACTIVE_SCAN: 1524 // Just starting focusing, ignore 1525 break; 1526 case ANDROID_CONTROL_AF_STATE_INACTIVE: 1527 case ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN: 1528 case ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED: 1529 case ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED: 1530 default: 1531 // Unexpected in AUTO/MACRO mode 1532 ALOGE("%s: Unexpected AF state transition in AUTO/MACRO mode: %d", 1533 __FUNCTION__, newState); 1534 break; 1535 } 1536 break; 1537 case Parameters::FOCUS_MODE_CONTINUOUS_VIDEO: 1538 case Parameters::FOCUS_MODE_CONTINUOUS_PICTURE: 1539 switch (newState) { 1540 case ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED: 1541 success = true; 1542 // no break 1543 case ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED: 1544 // Don't send notifications upstream if they're not for 1545 // the current AF trigger. For example, if cancel was 1546 // called in between, or if we already sent a 1547 // notification about this AF call. 1548 // Send both a 'AF done' callback and a 'AF move' callback 1549 if (triggerId != l.mParameters.currentAfTriggerId) break; 1550 sendCompletedMessage = true; 1551 afInMotion = false; 1552 if (l.mParameters.enableFocusMoveMessages && 1553 l.mParameters.afInMotion) { 1554 sendMovingMessage = true; 1555 } 1556 l.mParameters.currentAfTriggerId = -1; 1557 break; 1558 case ANDROID_CONTROL_AF_STATE_INACTIVE: 1559 // Cancel was called, or we switched state; care if 1560 // currently moving 1561 afInMotion = false; 1562 if (l.mParameters.enableFocusMoveMessages && 1563 l.mParameters.afInMotion) { 1564 sendMovingMessage = true; 1565 } 1566 break; 1567 case ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN: 1568 // Start passive scan, inform upstream 1569 afInMotion = true; 1570 // no break 1571 case ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED: 1572 case ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED: 1573 // Stop passive scan, inform upstream 1574 if (l.mParameters.enableFocusMoveMessages) { 1575 sendMovingMessage = true; 1576 } 1577 break; 1578 } 1579 l.mParameters.afInMotion = afInMotion; 1580 break; 1581 case Parameters::FOCUS_MODE_EDOF: 1582 case Parameters::FOCUS_MODE_INFINITY: 1583 case Parameters::FOCUS_MODE_FIXED: 1584 default: 1585 if (newState != ANDROID_CONTROL_AF_STATE_INACTIVE) { 1586 ALOGE("%s: Unexpected AF state change %d " 1587 "(ID %d) in focus mode %d", 1588 __FUNCTION__, newState, triggerId, 1589 l.mParameters.focusMode); 1590 } 1591 } 1592 } 1593 if (sendMovingMessage) { 1594 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1595 if (l.mRemoteCallback != 0) { 1596 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS_MOVE, 1597 afInMotion ? 1 : 0, 0); 1598 } 1599 } 1600 if (sendCompletedMessage) { 1601 ATRACE_ASYNC_END(kAutofocusLabel, triggerId); 1602 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1603 if (l.mRemoteCallback != 0) { 1604 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS, 1605 success ? 1 : 0, 0); 1606 } 1607 } 1608} 1609 1610void Camera2Client::notifyAutoExposure(uint8_t newState, int triggerId) { 1611 ALOGV("%s: Autoexposure state now %d, last trigger %d", 1612 __FUNCTION__, newState, triggerId); 1613 mCaptureSequencer->notifyAutoExposure(newState, triggerId); 1614} 1615 1616camera2::SharedParameters& Camera2Client::getParameters() { 1617 return mParameters; 1618} 1619 1620int Camera2Client::getPreviewStreamId() const { 1621 return mStreamingProcessor->getPreviewStreamId(); 1622} 1623 1624int Camera2Client::getCaptureStreamId() const { 1625 return mJpegProcessor->getStreamId(); 1626} 1627 1628int Camera2Client::getCallbackStreamId() const { 1629 return mCallbackProcessor->getStreamId(); 1630} 1631 1632int Camera2Client::getRecordingStreamId() const { 1633 return mStreamingProcessor->getRecordingStreamId(); 1634} 1635 1636int Camera2Client::getZslStreamId() const { 1637 return mZslProcessor->getStreamId(); 1638} 1639 1640status_t Camera2Client::registerFrameListener(int32_t minId, int32_t maxId, 1641 wp<camera2::FrameProcessor::FilteredListener> listener) { 1642 return mFrameProcessor->registerListener(minId, maxId, listener); 1643} 1644 1645status_t Camera2Client::removeFrameListener(int32_t minId, int32_t maxId, 1646 wp<camera2::FrameProcessor::FilteredListener> listener) { 1647 return mFrameProcessor->removeListener(minId, maxId, listener); 1648} 1649 1650status_t Camera2Client::stopStream() { 1651 return mStreamingProcessor->stopStream(); 1652} 1653 1654const int32_t Camera2Client::kPreviewRequestIdStart; 1655const int32_t Camera2Client::kPreviewRequestIdEnd; 1656const int32_t Camera2Client::kRecordingRequestIdStart; 1657const int32_t Camera2Client::kRecordingRequestIdEnd; 1658const int32_t Camera2Client::kCaptureRequestIdStart; 1659const int32_t Camera2Client::kCaptureRequestIdEnd; 1660 1661/** Utility methods */ 1662 1663status_t Camera2Client::updateRequests(Parameters ¶ms) { 1664 status_t res; 1665 1666 ALOGV("%s: Camera %d: state = %d", __FUNCTION__, getCameraId(), params.state); 1667 1668 res = mStreamingProcessor->incrementStreamingIds(); 1669 if (res != OK) { 1670 ALOGE("%s: Camera %d: Unable to increment request IDs: %s (%d)", 1671 __FUNCTION__, mCameraId, strerror(-res), res); 1672 return res; 1673 } 1674 1675 res = mStreamingProcessor->updatePreviewRequest(params); 1676 if (res != OK) { 1677 ALOGE("%s: Camera %d: Unable to update preview request: %s (%d)", 1678 __FUNCTION__, mCameraId, strerror(-res), res); 1679 return res; 1680 } 1681 res = mStreamingProcessor->updateRecordingRequest(params); 1682 if (res != OK) { 1683 ALOGE("%s: Camera %d: Unable to update recording request: %s (%d)", 1684 __FUNCTION__, mCameraId, strerror(-res), res); 1685 return res; 1686 } 1687 1688 if (params.state == Parameters::PREVIEW) { 1689 res = startPreviewL(params, true); 1690 if (res != OK) { 1691 ALOGE("%s: Camera %d: Error streaming new preview request: %s (%d)", 1692 __FUNCTION__, mCameraId, strerror(-res), res); 1693 return res; 1694 } 1695 } else if (params.state == Parameters::RECORD || 1696 params.state == Parameters::VIDEO_SNAPSHOT) { 1697 res = startRecordingL(params, true); 1698 if (res != OK) { 1699 ALOGE("%s: Camera %d: Error streaming new record request: %s (%d)", 1700 __FUNCTION__, mCameraId, strerror(-res), res); 1701 return res; 1702 } 1703 } 1704 return res; 1705} 1706 1707 1708size_t Camera2Client::calculateBufferSize(int width, int height, 1709 int format, int stride) { 1710 switch (format) { 1711 case HAL_PIXEL_FORMAT_YCbCr_422_SP: // NV16 1712 return width * height * 2; 1713 case HAL_PIXEL_FORMAT_YCrCb_420_SP: // NV21 1714 return width * height * 3 / 2; 1715 case HAL_PIXEL_FORMAT_YCbCr_422_I: // YUY2 1716 return width * height * 2; 1717 case HAL_PIXEL_FORMAT_YV12: { // YV12 1718 size_t ySize = stride * height; 1719 size_t uvStride = (stride / 2 + 0xF) & ~0xF; 1720 size_t uvSize = uvStride * height / 2; 1721 return ySize + uvSize * 2; 1722 } 1723 case HAL_PIXEL_FORMAT_RGB_565: 1724 return width * height * 2; 1725 case HAL_PIXEL_FORMAT_RGBA_8888: 1726 return width * height * 4; 1727 case HAL_PIXEL_FORMAT_RAW_SENSOR: 1728 return width * height * 2; 1729 default: 1730 ALOGE("%s: Unknown preview format: %x", 1731 __FUNCTION__, format); 1732 return 0; 1733 } 1734} 1735 1736status_t Camera2Client::syncWithDevice() { 1737 ATRACE_CALL(); 1738 const nsecs_t kMaxSyncTimeout = 500000000; // 500 ms 1739 status_t res; 1740 1741 int32_t activeRequestId = mStreamingProcessor->getActiveRequestId(); 1742 if (activeRequestId == 0) return OK; 1743 1744 res = mDevice->waitUntilRequestReceived(activeRequestId, kMaxSyncTimeout); 1745 if (res == TIMED_OUT) { 1746 ALOGE("%s: Camera %d: Timed out waiting sync with HAL", 1747 __FUNCTION__, mCameraId); 1748 } else if (res != OK) { 1749 ALOGE("%s: Camera %d: Error while waiting to sync with HAL", 1750 __FUNCTION__, mCameraId); 1751 } 1752 return res; 1753} 1754 1755template <typename ProcessorT> 1756status_t Camera2Client::updateProcessorStream(sp<ProcessorT> processor, 1757 camera2::Parameters params) { 1758 // No default template arguments until C++11, so we need this overload 1759 return updateProcessorStream<ProcessorT, &ProcessorT::updateStream>( 1760 processor, params); 1761} 1762 1763template <typename ProcessorT, 1764 status_t (ProcessorT::*updateStreamF)(const Parameters &)> 1765status_t Camera2Client::updateProcessorStream(sp<ProcessorT> processor, 1766 Parameters params) { 1767 status_t res; 1768 1769 // Get raw pointer since sp<T> doesn't have operator->* 1770 ProcessorT *processorPtr = processor.get(); 1771 res = (processorPtr->*updateStreamF)(params); 1772 1773 /** 1774 * Can't update the stream if it's busy? 1775 * 1776 * Then we need to stop the device (by temporarily clearing the request 1777 * queue) and then try again. Resume streaming once we're done. 1778 */ 1779 if (res == -EBUSY) { 1780 ALOGV("%s: Camera %d: Pausing to update stream", __FUNCTION__, 1781 mCameraId); 1782 res = mStreamingProcessor->togglePauseStream(/*pause*/true); 1783 if (res != OK) { 1784 ALOGE("%s: Camera %d: Can't pause streaming: %s (%d)", 1785 __FUNCTION__, mCameraId, strerror(-res), res); 1786 } 1787 1788 res = mDevice->waitUntilDrained(); 1789 if (res != OK) { 1790 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 1791 __FUNCTION__, mCameraId, strerror(-res), res); 1792 } 1793 1794 res = (processorPtr->*updateStreamF)(params); 1795 if (res != OK) { 1796 ALOGE("%s: Camera %d: Failed to update processing stream " 1797 " despite having halted streaming first: %s (%d)", 1798 __FUNCTION__, mCameraId, strerror(-res), res); 1799 } 1800 1801 res = mStreamingProcessor->togglePauseStream(/*pause*/false); 1802 if (res != OK) { 1803 ALOGE("%s: Camera %d: Can't unpause streaming: %s (%d)", 1804 __FUNCTION__, mCameraId, strerror(-res), res); 1805 } 1806 } 1807 1808 return res; 1809} 1810 1811const char* Camera2Client::kAutofocusLabel = "autofocus"; 1812const char* Camera2Client::kTakepictureLabel = "take_picture"; 1813 1814} // namespace android 1815