1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define LOG_TAG "Camera2Client" 18 #define ATRACE_TAG ATRACE_TAG_CAMERA 19 //#define LOG_NDEBUG 0 20 21 #include <inttypes.h> 22 #include <utils/Log.h> 23 #include <utils/Trace.h> 24 25 #include <cutils/properties.h> 26 #include <gui/Surface.h> 27 28 #include "api1/Camera2Client.h" 29 30 #include "api1/client2/StreamingProcessor.h" 31 #include "api1/client2/JpegProcessor.h" 32 #include "api1/client2/CaptureSequencer.h" 33 #include "api1/client2/CallbackProcessor.h" 34 #include "api1/client2/ZslProcessor.h" 35 #include "api1/client2/ZslProcessor3.h" 36 37 #define ALOG1(...) ALOGD_IF(gLogLevel >= 1, __VA_ARGS__); 38 #define ALOG2(...) ALOGD_IF(gLogLevel >= 2, __VA_ARGS__); 39 40 namespace android { 41 using namespace camera2; 42 43 static int getCallingPid() { 44 return IPCThreadState::self()->getCallingPid(); 45 } 46 47 // Interface used by CameraService 48 49 Camera2Client::Camera2Client(const sp<CameraService>& cameraService, 50 const sp<ICameraClient>& cameraClient, 51 const String16& clientPackageName, 52 int cameraId, 53 int cameraFacing, 54 int clientPid, 55 uid_t clientUid, 56 int servicePid, 57 bool legacyMode): 58 Camera2ClientBase(cameraService, cameraClient, clientPackageName, 59 cameraId, cameraFacing, clientPid, clientUid, servicePid), 60 mParameters(cameraId, cameraFacing) 61 { 62 ATRACE_CALL(); 63 64 SharedParameters::Lock l(mParameters); 65 l.mParameters.state = Parameters::DISCONNECTED; 66 67 mLegacyMode = legacyMode; 68 } 69 70 status_t Camera2Client::initialize(camera_module_t *module) 71 { 72 ATRACE_CALL(); 73 ALOGV("%s: Initializing client for camera %d", __FUNCTION__, mCameraId); 74 status_t res; 75 76 res = Camera2ClientBase::initialize(module); 77 if (res != OK) { 78 return res; 79 } 80 81 { 82 SharedParameters::Lock l(mParameters); 83 84 res = l.mParameters.initialize(&(mDevice->info()), mDeviceVersion); 85 if (res != OK) { 86 ALOGE("%s: Camera %d: unable to build defaults: %s (%d)", 87 __FUNCTION__, mCameraId, strerror(-res), res); 88 return NO_INIT; 89 } 90 } 91 92 String8 threadName; 93 94 mStreamingProcessor = new StreamingProcessor(this); 95 threadName = String8::format("C2-%d-StreamProc", 96 mCameraId); 97 mStreamingProcessor->run(threadName.string()); 98 99 mFrameProcessor = new FrameProcessor(mDevice, this); 100 threadName = String8::format("C2-%d-FrameProc", 101 mCameraId); 102 mFrameProcessor->run(threadName.string()); 103 104 mCaptureSequencer = new CaptureSequencer(this); 105 threadName = String8::format("C2-%d-CaptureSeq", 106 mCameraId); 107 mCaptureSequencer->run(threadName.string()); 108 109 mJpegProcessor = new JpegProcessor(this, mCaptureSequencer); 110 threadName = String8::format("C2-%d-JpegProc", 111 mCameraId); 112 mJpegProcessor->run(threadName.string()); 113 114 switch (mDeviceVersion) { 115 case CAMERA_DEVICE_API_VERSION_2_0: { 116 sp<ZslProcessor> zslProc = 117 new ZslProcessor(this, mCaptureSequencer); 118 mZslProcessor = zslProc; 119 mZslProcessorThread = zslProc; 120 break; 121 } 122 case CAMERA_DEVICE_API_VERSION_3_0: 123 case CAMERA_DEVICE_API_VERSION_3_1: 124 case CAMERA_DEVICE_API_VERSION_3_2: { 125 sp<ZslProcessor3> zslProc = 126 new ZslProcessor3(this, mCaptureSequencer); 127 mZslProcessor = zslProc; 128 mZslProcessorThread = zslProc; 129 break; 130 } 131 default: 132 break; 133 } 134 threadName = String8::format("C2-%d-ZslProc", 135 mCameraId); 136 mZslProcessorThread->run(threadName.string()); 137 138 mCallbackProcessor = new CallbackProcessor(this); 139 threadName = String8::format("C2-%d-CallbkProc", 140 mCameraId); 141 mCallbackProcessor->run(threadName.string()); 142 143 if (gLogLevel >= 1) { 144 SharedParameters::Lock l(mParameters); 145 ALOGD("%s: Default parameters converted from camera %d:", __FUNCTION__, 146 mCameraId); 147 ALOGD("%s", l.mParameters.paramsFlattened.string()); 148 } 149 150 return OK; 151 } 152 153 Camera2Client::~Camera2Client() { 154 ATRACE_CALL(); 155 ALOGV("~Camera2Client"); 156 157 mDestructionStarted = true; 158 159 disconnect(); 160 161 ALOGI("Camera %d: Closed", mCameraId); 162 } 163 164 status_t Camera2Client::dump(int fd, const Vector<String16>& args) { 165 String8 result; 166 result.appendFormat("Client2[%d] (%p) Client: %s PID: %d, dump:\n", 167 mCameraId, 168 getRemoteCallback()->asBinder().get(), 169 String8(mClientPackageName).string(), 170 mClientPid); 171 result.append(" State: "); 172 #define CASE_APPEND_ENUM(x) case x: result.append(#x "\n"); break; 173 174 const Parameters& p = mParameters.unsafeAccess(); 175 176 result.append(Parameters::getStateName(p.state)); 177 178 result.append("\n Current parameters:\n"); 179 result.appendFormat(" Preview size: %d x %d\n", 180 p.previewWidth, p.previewHeight); 181 result.appendFormat(" Preview FPS range: %d - %d\n", 182 p.previewFpsRange[0], p.previewFpsRange[1]); 183 result.appendFormat(" Preview HAL pixel format: 0x%x\n", 184 p.previewFormat); 185 result.appendFormat(" Preview transform: %x\n", 186 p.previewTransform); 187 result.appendFormat(" Picture size: %d x %d\n", 188 p.pictureWidth, p.pictureHeight); 189 result.appendFormat(" Jpeg thumbnail size: %d x %d\n", 190 p.jpegThumbSize[0], p.jpegThumbSize[1]); 191 result.appendFormat(" Jpeg quality: %d, thumbnail quality: %d\n", 192 p.jpegQuality, p.jpegThumbQuality); 193 result.appendFormat(" Jpeg rotation: %d\n", p.jpegRotation); 194 result.appendFormat(" GPS tags %s\n", 195 p.gpsEnabled ? "enabled" : "disabled"); 196 if (p.gpsEnabled) { 197 result.appendFormat(" GPS lat x long x alt: %f x %f x %f\n", 198 p.gpsCoordinates[0], p.gpsCoordinates[1], 199 p.gpsCoordinates[2]); 200 result.appendFormat(" GPS timestamp: %" PRId64 "\n", 201 p.gpsTimestamp); 202 result.appendFormat(" GPS processing method: %s\n", 203 p.gpsProcessingMethod.string()); 204 } 205 206 result.append(" White balance mode: "); 207 switch (p.wbMode) { 208 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_AUTO) 209 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_INCANDESCENT) 210 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_FLUORESCENT) 211 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_WARM_FLUORESCENT) 212 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_DAYLIGHT) 213 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_CLOUDY_DAYLIGHT) 214 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_TWILIGHT) 215 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_SHADE) 216 default: result.append("UNKNOWN\n"); 217 } 218 219 result.append(" Effect mode: "); 220 switch (p.effectMode) { 221 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_OFF) 222 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_MONO) 223 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_NEGATIVE) 224 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_SOLARIZE) 225 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_SEPIA) 226 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_POSTERIZE) 227 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_WHITEBOARD) 228 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_BLACKBOARD) 229 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_AQUA) 230 default: result.append("UNKNOWN\n"); 231 } 232 233 result.append(" Antibanding mode: "); 234 switch (p.antibandingMode) { 235 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_AUTO) 236 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_OFF) 237 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_50HZ) 238 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_60HZ) 239 default: result.append("UNKNOWN\n"); 240 } 241 242 result.append(" Scene mode: "); 243 switch (p.sceneMode) { 244 case ANDROID_CONTROL_SCENE_MODE_DISABLED: 245 result.append("AUTO\n"); break; 246 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_ACTION) 247 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_PORTRAIT) 248 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_LANDSCAPE) 249 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_NIGHT) 250 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_NIGHT_PORTRAIT) 251 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_THEATRE) 252 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_BEACH) 253 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SNOW) 254 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SUNSET) 255 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_STEADYPHOTO) 256 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_FIREWORKS) 257 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SPORTS) 258 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_PARTY) 259 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_CANDLELIGHT) 260 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_BARCODE) 261 default: result.append("UNKNOWN\n"); 262 } 263 264 result.append(" Flash mode: "); 265 switch (p.flashMode) { 266 CASE_APPEND_ENUM(Parameters::FLASH_MODE_OFF) 267 CASE_APPEND_ENUM(Parameters::FLASH_MODE_AUTO) 268 CASE_APPEND_ENUM(Parameters::FLASH_MODE_ON) 269 CASE_APPEND_ENUM(Parameters::FLASH_MODE_TORCH) 270 CASE_APPEND_ENUM(Parameters::FLASH_MODE_RED_EYE) 271 CASE_APPEND_ENUM(Parameters::FLASH_MODE_INVALID) 272 default: result.append("UNKNOWN\n"); 273 } 274 275 result.append(" Focus mode: "); 276 switch (p.focusMode) { 277 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_AUTO) 278 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_MACRO) 279 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_CONTINUOUS_VIDEO) 280 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_CONTINUOUS_PICTURE) 281 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_EDOF) 282 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_INFINITY) 283 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_FIXED) 284 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_INVALID) 285 default: result.append("UNKNOWN\n"); 286 } 287 288 result.append(" Focus state: "); 289 switch (p.focusState) { 290 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_INACTIVE) 291 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN) 292 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED) 293 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED) 294 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_ACTIVE_SCAN) 295 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED) 296 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED) 297 default: result.append("UNKNOWN\n"); 298 } 299 300 result.append(" Focusing areas:\n"); 301 for (size_t i = 0; i < p.focusingAreas.size(); i++) { 302 result.appendFormat(" [ (%d, %d, %d, %d), weight %d ]\n", 303 p.focusingAreas[i].left, 304 p.focusingAreas[i].top, 305 p.focusingAreas[i].right, 306 p.focusingAreas[i].bottom, 307 p.focusingAreas[i].weight); 308 } 309 310 result.appendFormat(" Exposure compensation index: %d\n", 311 p.exposureCompensation); 312 313 result.appendFormat(" AE lock %s, AWB lock %s\n", 314 p.autoExposureLock ? "enabled" : "disabled", 315 p.autoWhiteBalanceLock ? "enabled" : "disabled" ); 316 317 result.appendFormat(" Metering areas:\n"); 318 for (size_t i = 0; i < p.meteringAreas.size(); i++) { 319 result.appendFormat(" [ (%d, %d, %d, %d), weight %d ]\n", 320 p.meteringAreas[i].left, 321 p.meteringAreas[i].top, 322 p.meteringAreas[i].right, 323 p.meteringAreas[i].bottom, 324 p.meteringAreas[i].weight); 325 } 326 327 result.appendFormat(" Zoom index: %d\n", p.zoom); 328 result.appendFormat(" Video size: %d x %d\n", p.videoWidth, 329 p.videoHeight); 330 331 result.appendFormat(" Recording hint is %s\n", 332 p.recordingHint ? "set" : "not set"); 333 334 result.appendFormat(" Video stabilization is %s\n", 335 p.videoStabilization ? "enabled" : "disabled"); 336 337 result.appendFormat(" Selected still capture FPS range: %d - %d\n", 338 p.fastInfo.bestStillCaptureFpsRange[0], 339 p.fastInfo.bestStillCaptureFpsRange[1]); 340 341 result.append(" Current streams:\n"); 342 result.appendFormat(" Preview stream ID: %d\n", 343 getPreviewStreamId()); 344 result.appendFormat(" Capture stream ID: %d\n", 345 getCaptureStreamId()); 346 result.appendFormat(" Recording stream ID: %d\n", 347 getRecordingStreamId()); 348 349 result.append(" Quirks for this camera:\n"); 350 bool haveQuirk = false; 351 if (p.quirks.triggerAfWithAuto) { 352 result.appendFormat(" triggerAfWithAuto\n"); 353 haveQuirk = true; 354 } 355 if (p.quirks.useZslFormat) { 356 result.appendFormat(" useZslFormat\n"); 357 haveQuirk = true; 358 } 359 if (p.quirks.meteringCropRegion) { 360 result.appendFormat(" meteringCropRegion\n"); 361 haveQuirk = true; 362 } 363 if (p.quirks.partialResults) { 364 result.appendFormat(" usePartialResult\n"); 365 haveQuirk = true; 366 } 367 if (!haveQuirk) { 368 result.appendFormat(" none\n"); 369 } 370 371 write(fd, result.string(), result.size()); 372 373 mStreamingProcessor->dump(fd, args); 374 375 mCaptureSequencer->dump(fd, args); 376 377 mFrameProcessor->dump(fd, args); 378 379 mZslProcessor->dump(fd, args); 380 381 return dumpDevice(fd, args); 382 #undef CASE_APPEND_ENUM 383 } 384 385 // ICamera interface 386 387 void Camera2Client::disconnect() { 388 ATRACE_CALL(); 389 Mutex::Autolock icl(mBinderSerializationLock); 390 391 // Allow both client and the media server to disconnect at all times 392 int callingPid = getCallingPid(); 393 if (callingPid != mClientPid && callingPid != mServicePid) return; 394 395 if (mDevice == 0) return; 396 397 ALOGV("Camera %d: Shutting down", mCameraId); 398 399 /** 400 * disconnect() cannot call any methods that might need to promote a 401 * wp<Camera2Client>, since disconnect can be called from the destructor, at 402 * which point all such promotions will fail. 403 */ 404 405 stopPreviewL(); 406 407 { 408 SharedParameters::Lock l(mParameters); 409 if (l.mParameters.state == Parameters::DISCONNECTED) return; 410 l.mParameters.state = Parameters::DISCONNECTED; 411 } 412 413 mStreamingProcessor->requestExit(); 414 mFrameProcessor->requestExit(); 415 mCaptureSequencer->requestExit(); 416 mJpegProcessor->requestExit(); 417 mZslProcessorThread->requestExit(); 418 mCallbackProcessor->requestExit(); 419 420 ALOGV("Camera %d: Waiting for threads", mCameraId); 421 422 { 423 // Don't wait with lock held, in case the other threads need to 424 // complete callbacks that re-enter Camera2Client 425 mBinderSerializationLock.unlock(); 426 427 mStreamingProcessor->join(); 428 mFrameProcessor->join(); 429 mCaptureSequencer->join(); 430 mJpegProcessor->join(); 431 mZslProcessorThread->join(); 432 mCallbackProcessor->join(); 433 434 mBinderSerializationLock.lock(); 435 } 436 437 ALOGV("Camera %d: Deleting streams", mCameraId); 438 439 mStreamingProcessor->deletePreviewStream(); 440 mStreamingProcessor->deleteRecordingStream(); 441 mJpegProcessor->deleteStream(); 442 mCallbackProcessor->deleteStream(); 443 mZslProcessor->deleteStream(); 444 445 // Remove all ZSL stream state before disconnect; needed to work around b/15408128. 446 mZslProcessor->disconnect(); 447 448 ALOGV("Camera %d: Disconnecting device", mCameraId); 449 450 mDevice->disconnect(); 451 452 mDevice.clear(); 453 454 CameraService::Client::disconnect(); 455 } 456 457 status_t Camera2Client::connect(const sp<ICameraClient>& client) { 458 ATRACE_CALL(); 459 ALOGV("%s: E", __FUNCTION__); 460 Mutex::Autolock icl(mBinderSerializationLock); 461 462 if (mClientPid != 0 && getCallingPid() != mClientPid) { 463 ALOGE("%s: Camera %d: Connection attempt from pid %d; " 464 "current locked to pid %d", __FUNCTION__, 465 mCameraId, getCallingPid(), mClientPid); 466 return BAD_VALUE; 467 } 468 469 mClientPid = getCallingPid(); 470 471 mRemoteCallback = client; 472 mSharedCameraCallbacks = client; 473 474 return OK; 475 } 476 477 status_t Camera2Client::lock() { 478 ATRACE_CALL(); 479 ALOGV("%s: E", __FUNCTION__); 480 Mutex::Autolock icl(mBinderSerializationLock); 481 ALOGV("%s: Camera %d: Lock call from pid %d; current client pid %d", 482 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 483 484 if (mClientPid == 0) { 485 mClientPid = getCallingPid(); 486 return OK; 487 } 488 489 if (mClientPid != getCallingPid()) { 490 ALOGE("%s: Camera %d: Lock call from pid %d; currently locked to pid %d", 491 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 492 return EBUSY; 493 } 494 495 return OK; 496 } 497 498 status_t Camera2Client::unlock() { 499 ATRACE_CALL(); 500 ALOGV("%s: E", __FUNCTION__); 501 Mutex::Autolock icl(mBinderSerializationLock); 502 ALOGV("%s: Camera %d: Unlock call from pid %d; current client pid %d", 503 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 504 505 if (mClientPid == getCallingPid()) { 506 SharedParameters::Lock l(mParameters); 507 if (l.mParameters.state == Parameters::RECORD || 508 l.mParameters.state == Parameters::VIDEO_SNAPSHOT) { 509 ALOGD("Not allowed to unlock camera during recording."); 510 return INVALID_OPERATION; 511 } 512 mClientPid = 0; 513 mRemoteCallback.clear(); 514 mSharedCameraCallbacks.clear(); 515 return OK; 516 } 517 518 ALOGE("%s: Camera %d: Unlock call from pid %d; currently locked to pid %d", 519 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 520 return EBUSY; 521 } 522 523 status_t Camera2Client::setPreviewTarget( 524 const sp<IGraphicBufferProducer>& bufferProducer) { 525 ATRACE_CALL(); 526 ALOGV("%s: E", __FUNCTION__); 527 Mutex::Autolock icl(mBinderSerializationLock); 528 status_t res; 529 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 530 531 sp<IBinder> binder; 532 sp<ANativeWindow> window; 533 if (bufferProducer != 0) { 534 binder = bufferProducer->asBinder(); 535 // Using controlledByApp flag to ensure that the buffer queue remains in 536 // async mode for the old camera API, where many applications depend 537 // on that behavior. 538 window = new Surface(bufferProducer, /*controlledByApp*/ true); 539 } 540 return setPreviewWindowL(binder, window); 541 } 542 543 status_t Camera2Client::setPreviewWindowL(const sp<IBinder>& binder, 544 sp<ANativeWindow> window) { 545 ATRACE_CALL(); 546 status_t res; 547 548 if (binder == mPreviewSurface) { 549 ALOGV("%s: Camera %d: New window is same as old window", 550 __FUNCTION__, mCameraId); 551 return NO_ERROR; 552 } 553 554 Parameters::State state; 555 { 556 SharedParameters::Lock l(mParameters); 557 state = l.mParameters.state; 558 } 559 switch (state) { 560 case Parameters::DISCONNECTED: 561 case Parameters::RECORD: 562 case Parameters::STILL_CAPTURE: 563 case Parameters::VIDEO_SNAPSHOT: 564 ALOGE("%s: Camera %d: Cannot set preview display while in state %s", 565 __FUNCTION__, mCameraId, 566 Parameters::getStateName(state)); 567 return INVALID_OPERATION; 568 case Parameters::STOPPED: 569 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 570 // OK 571 break; 572 case Parameters::PREVIEW: 573 // Already running preview - need to stop and create a new stream 574 res = stopStream(); 575 if (res != OK) { 576 ALOGE("%s: Unable to stop preview to swap windows: %s (%d)", 577 __FUNCTION__, strerror(-res), res); 578 return res; 579 } 580 state = Parameters::WAITING_FOR_PREVIEW_WINDOW; 581 break; 582 } 583 584 mPreviewSurface = binder; 585 res = mStreamingProcessor->setPreviewWindow(window); 586 if (res != OK) { 587 ALOGE("%s: Unable to set new preview window: %s (%d)", 588 __FUNCTION__, strerror(-res), res); 589 return res; 590 } 591 592 if (state == Parameters::WAITING_FOR_PREVIEW_WINDOW) { 593 SharedParameters::Lock l(mParameters); 594 l.mParameters.state = state; 595 return startPreviewL(l.mParameters, false); 596 } 597 598 return OK; 599 } 600 601 void Camera2Client::setPreviewCallbackFlag(int flag) { 602 ATRACE_CALL(); 603 ALOGV("%s: Camera %d: Flag 0x%x", __FUNCTION__, mCameraId, flag); 604 Mutex::Autolock icl(mBinderSerializationLock); 605 606 if ( checkPid(__FUNCTION__) != OK) return; 607 608 SharedParameters::Lock l(mParameters); 609 setPreviewCallbackFlagL(l.mParameters, flag); 610 } 611 612 void Camera2Client::setPreviewCallbackFlagL(Parameters ¶ms, int flag) { 613 status_t res = OK; 614 615 switch(params.state) { 616 case Parameters::STOPPED: 617 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 618 case Parameters::PREVIEW: 619 case Parameters::STILL_CAPTURE: 620 // OK 621 break; 622 default: 623 if (flag & CAMERA_FRAME_CALLBACK_FLAG_ENABLE_MASK) { 624 ALOGE("%s: Camera %d: Can't use preview callbacks " 625 "in state %d", __FUNCTION__, mCameraId, params.state); 626 return; 627 } 628 } 629 630 if (flag & CAMERA_FRAME_CALLBACK_FLAG_ONE_SHOT_MASK) { 631 ALOGV("%s: setting oneshot", __FUNCTION__); 632 params.previewCallbackOneShot = true; 633 } 634 if (params.previewCallbackFlags != (uint32_t)flag) { 635 636 if (params.previewCallbackSurface && flag != CAMERA_FRAME_CALLBACK_FLAG_NOOP) { 637 // Disable any existing preview callback window when enabling 638 // preview callback flags 639 res = mCallbackProcessor->setCallbackWindow(NULL); 640 if (res != OK) { 641 ALOGE("%s: Camera %d: Unable to clear preview callback surface:" 642 " %s (%d)", __FUNCTION__, mCameraId, strerror(-res), res); 643 return; 644 } 645 params.previewCallbackSurface = false; 646 } 647 648 params.previewCallbackFlags = flag; 649 650 if (params.state == Parameters::PREVIEW) { 651 res = startPreviewL(params, true); 652 if (res != OK) { 653 ALOGE("%s: Camera %d: Unable to refresh request in state %s", 654 __FUNCTION__, mCameraId, 655 Parameters::getStateName(params.state)); 656 } 657 } 658 } 659 } 660 661 status_t Camera2Client::setPreviewCallbackTarget( 662 const sp<IGraphicBufferProducer>& callbackProducer) { 663 ATRACE_CALL(); 664 ALOGV("%s: E", __FUNCTION__); 665 Mutex::Autolock icl(mBinderSerializationLock); 666 status_t res; 667 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 668 669 sp<ANativeWindow> window; 670 if (callbackProducer != 0) { 671 window = new Surface(callbackProducer); 672 } 673 674 res = mCallbackProcessor->setCallbackWindow(window); 675 if (res != OK) { 676 ALOGE("%s: Camera %d: Unable to set preview callback surface: %s (%d)", 677 __FUNCTION__, mCameraId, strerror(-res), res); 678 return res; 679 } 680 681 SharedParameters::Lock l(mParameters); 682 683 if (window != NULL) { 684 // Disable traditional callbacks when a valid callback target is given 685 l.mParameters.previewCallbackFlags = CAMERA_FRAME_CALLBACK_FLAG_NOOP; 686 l.mParameters.previewCallbackOneShot = false; 687 l.mParameters.previewCallbackSurface = true; 688 } else { 689 // Disable callback target if given a NULL interface. 690 l.mParameters.previewCallbackSurface = false; 691 } 692 693 switch(l.mParameters.state) { 694 case Parameters::PREVIEW: 695 res = startPreviewL(l.mParameters, true); 696 break; 697 case Parameters::RECORD: 698 case Parameters::VIDEO_SNAPSHOT: 699 res = startRecordingL(l.mParameters, true); 700 break; 701 default: 702 break; 703 } 704 if (res != OK) { 705 ALOGE("%s: Camera %d: Unable to refresh request in state %s", 706 __FUNCTION__, mCameraId, 707 Parameters::getStateName(l.mParameters.state)); 708 } 709 710 return OK; 711 } 712 713 714 status_t Camera2Client::startPreview() { 715 ATRACE_CALL(); 716 ALOGV("%s: E", __FUNCTION__); 717 Mutex::Autolock icl(mBinderSerializationLock); 718 status_t res; 719 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 720 SharedParameters::Lock l(mParameters); 721 return startPreviewL(l.mParameters, false); 722 } 723 724 status_t Camera2Client::startPreviewL(Parameters ¶ms, bool restart) { 725 ATRACE_CALL(); 726 status_t res; 727 728 ALOGV("%s: state == %d, restart = %d", __FUNCTION__, params.state, restart); 729 730 if ( (params.state == Parameters::PREVIEW || 731 params.state == Parameters::RECORD || 732 params.state == Parameters::VIDEO_SNAPSHOT) 733 && !restart) { 734 // Succeed attempt to re-enter a streaming state 735 ALOGI("%s: Camera %d: Preview already active, ignoring restart", 736 __FUNCTION__, mCameraId); 737 return OK; 738 } 739 if (params.state > Parameters::PREVIEW && !restart) { 740 ALOGE("%s: Can't start preview in state %s", 741 __FUNCTION__, 742 Parameters::getStateName(params.state)); 743 return INVALID_OPERATION; 744 } 745 746 if (!mStreamingProcessor->haveValidPreviewWindow()) { 747 params.state = Parameters::WAITING_FOR_PREVIEW_WINDOW; 748 return OK; 749 } 750 params.state = Parameters::STOPPED; 751 int lastPreviewStreamId = mStreamingProcessor->getPreviewStreamId(); 752 753 res = mStreamingProcessor->updatePreviewStream(params); 754 if (res != OK) { 755 ALOGE("%s: Camera %d: Unable to update preview stream: %s (%d)", 756 __FUNCTION__, mCameraId, strerror(-res), res); 757 return res; 758 } 759 760 bool previewStreamChanged = mStreamingProcessor->getPreviewStreamId() != lastPreviewStreamId; 761 762 // We could wait to create the JPEG output stream until first actual use 763 // (first takePicture call). However, this would substantially increase the 764 // first capture latency on HAL3 devices, and potentially on some HAL2 765 // devices. So create it unconditionally at preview start. As a drawback, 766 // this increases gralloc memory consumption for applications that don't 767 // ever take a picture. 768 // TODO: Find a better compromise, though this likely would involve HAL 769 // changes. 770 int lastJpegStreamId = mJpegProcessor->getStreamId(); 771 res = updateProcessorStream(mJpegProcessor, params); 772 if (res != OK) { 773 ALOGE("%s: Camera %d: Can't pre-configure still image " 774 "stream: %s (%d)", 775 __FUNCTION__, mCameraId, strerror(-res), res); 776 return res; 777 } 778 bool jpegStreamChanged = mJpegProcessor->getStreamId() != lastJpegStreamId; 779 780 Vector<int32_t> outputStreams; 781 bool callbacksEnabled = (params.previewCallbackFlags & 782 CAMERA_FRAME_CALLBACK_FLAG_ENABLE_MASK) || 783 params.previewCallbackSurface; 784 785 if (callbacksEnabled) { 786 // Can't have recording stream hanging around when enabling callbacks, 787 // since it exceeds the max stream count on some devices. 788 if (mStreamingProcessor->getRecordingStreamId() != NO_STREAM) { 789 ALOGV("%s: Camera %d: Clearing out recording stream before " 790 "creating callback stream", __FUNCTION__, mCameraId); 791 res = mStreamingProcessor->stopStream(); 792 if (res != OK) { 793 ALOGE("%s: Camera %d: Can't stop streaming to delete " 794 "recording stream", __FUNCTION__, mCameraId); 795 return res; 796 } 797 res = mStreamingProcessor->deleteRecordingStream(); 798 if (res != OK) { 799 ALOGE("%s: Camera %d: Unable to delete recording stream before " 800 "enabling callbacks: %s (%d)", __FUNCTION__, mCameraId, 801 strerror(-res), res); 802 return res; 803 } 804 } 805 806 res = mCallbackProcessor->updateStream(params); 807 if (res != OK) { 808 ALOGE("%s: Camera %d: Unable to update callback stream: %s (%d)", 809 __FUNCTION__, mCameraId, strerror(-res), res); 810 return res; 811 } 812 outputStreams.push(getCallbackStreamId()); 813 } else if (previewStreamChanged && mCallbackProcessor->getStreamId() != NO_STREAM) { 814 /** 815 * Delete the unused callback stream when preview stream is changed and 816 * preview is not enabled. Don't need stop preview stream as preview is in 817 * STOPPED state now. 818 */ 819 ALOGV("%s: Camera %d: Delete unused preview callback stream.", __FUNCTION__, mCameraId); 820 res = mCallbackProcessor->deleteStream(); 821 if (res != OK) { 822 ALOGE("%s: Camera %d: Unable to delete callback stream %s (%d)", 823 __FUNCTION__, mCameraId, strerror(-res), res); 824 return res; 825 } 826 } 827 828 if (params.zslMode && !params.recordingHint && 829 getRecordingStreamId() == NO_STREAM) { 830 res = updateProcessorStream(mZslProcessor, params); 831 if (res != OK) { 832 ALOGE("%s: Camera %d: Unable to update ZSL stream: %s (%d)", 833 __FUNCTION__, mCameraId, strerror(-res), res); 834 return res; 835 } 836 837 if (jpegStreamChanged) { 838 ALOGV("%s: Camera %d: Clear ZSL buffer queue when Jpeg size is changed", 839 __FUNCTION__, mCameraId); 840 mZslProcessor->clearZslQueue(); 841 } 842 outputStreams.push(getZslStreamId()); 843 } else { 844 mZslProcessor->deleteStream(); 845 } 846 847 outputStreams.push(getPreviewStreamId()); 848 849 if (!params.recordingHint) { 850 if (!restart) { 851 res = mStreamingProcessor->updatePreviewRequest(params); 852 if (res != OK) { 853 ALOGE("%s: Camera %d: Can't set up preview request: " 854 "%s (%d)", __FUNCTION__, mCameraId, 855 strerror(-res), res); 856 return res; 857 } 858 } 859 res = mStreamingProcessor->startStream(StreamingProcessor::PREVIEW, 860 outputStreams); 861 } else { 862 if (!restart) { 863 res = mStreamingProcessor->updateRecordingRequest(params); 864 if (res != OK) { 865 ALOGE("%s: Camera %d: Can't set up preview request with " 866 "record hint: %s (%d)", __FUNCTION__, mCameraId, 867 strerror(-res), res); 868 return res; 869 } 870 } 871 res = mStreamingProcessor->startStream(StreamingProcessor::RECORD, 872 outputStreams); 873 } 874 if (res != OK) { 875 ALOGE("%s: Camera %d: Unable to start streaming preview: %s (%d)", 876 __FUNCTION__, mCameraId, strerror(-res), res); 877 return res; 878 } 879 880 params.state = Parameters::PREVIEW; 881 return OK; 882 } 883 884 void Camera2Client::stopPreview() { 885 ATRACE_CALL(); 886 ALOGV("%s: E", __FUNCTION__); 887 Mutex::Autolock icl(mBinderSerializationLock); 888 status_t res; 889 if ( (res = checkPid(__FUNCTION__) ) != OK) return; 890 stopPreviewL(); 891 } 892 893 void Camera2Client::stopPreviewL() { 894 ATRACE_CALL(); 895 status_t res; 896 const nsecs_t kStopCaptureTimeout = 3000000000LL; // 3 seconds 897 Parameters::State state; 898 { 899 SharedParameters::Lock l(mParameters); 900 state = l.mParameters.state; 901 } 902 903 switch (state) { 904 case Parameters::DISCONNECTED: 905 // Nothing to do. 906 break; 907 case Parameters::STOPPED: 908 case Parameters::VIDEO_SNAPSHOT: 909 case Parameters::STILL_CAPTURE: 910 mCaptureSequencer->waitUntilIdle(kStopCaptureTimeout); 911 // no break 912 case Parameters::RECORD: 913 case Parameters::PREVIEW: 914 syncWithDevice(); 915 res = stopStream(); 916 if (res != OK) { 917 ALOGE("%s: Camera %d: Can't stop streaming: %s (%d)", 918 __FUNCTION__, mCameraId, strerror(-res), res); 919 } 920 921 // Flush all in-process captures and buffer in order to stop 922 // preview faster. 923 res = mDevice->flush(); 924 if (res != OK) { 925 ALOGE("%s: Camera %d: Unable to flush pending requests: %s (%d)", 926 __FUNCTION__, mCameraId, strerror(-res), res); 927 } 928 929 res = mDevice->waitUntilDrained(); 930 if (res != OK) { 931 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 932 __FUNCTION__, mCameraId, strerror(-res), res); 933 } 934 // Clean up recording stream 935 res = mStreamingProcessor->deleteRecordingStream(); 936 if (res != OK) { 937 ALOGE("%s: Camera %d: Unable to delete recording stream before " 938 "stop preview: %s (%d)", 939 __FUNCTION__, mCameraId, strerror(-res), res); 940 } 941 // no break 942 case Parameters::WAITING_FOR_PREVIEW_WINDOW: { 943 SharedParameters::Lock l(mParameters); 944 l.mParameters.state = Parameters::STOPPED; 945 commandStopFaceDetectionL(l.mParameters); 946 break; 947 } 948 default: 949 ALOGE("%s: Camera %d: Unknown state %d", __FUNCTION__, mCameraId, 950 state); 951 } 952 } 953 954 bool Camera2Client::previewEnabled() { 955 ATRACE_CALL(); 956 Mutex::Autolock icl(mBinderSerializationLock); 957 status_t res; 958 if ( (res = checkPid(__FUNCTION__) ) != OK) return false; 959 960 SharedParameters::Lock l(mParameters); 961 return l.mParameters.state == Parameters::PREVIEW; 962 } 963 964 status_t Camera2Client::storeMetaDataInBuffers(bool enabled) { 965 ATRACE_CALL(); 966 Mutex::Autolock icl(mBinderSerializationLock); 967 status_t res; 968 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 969 970 SharedParameters::Lock l(mParameters); 971 switch (l.mParameters.state) { 972 case Parameters::RECORD: 973 case Parameters::VIDEO_SNAPSHOT: 974 ALOGE("%s: Camera %d: Can't be called in state %s", 975 __FUNCTION__, mCameraId, 976 Parameters::getStateName(l.mParameters.state)); 977 return INVALID_OPERATION; 978 default: 979 // OK 980 break; 981 } 982 983 l.mParameters.storeMetadataInBuffers = enabled; 984 985 return OK; 986 } 987 988 status_t Camera2Client::startRecording() { 989 ATRACE_CALL(); 990 ALOGV("%s: E", __FUNCTION__); 991 Mutex::Autolock icl(mBinderSerializationLock); 992 status_t res; 993 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 994 SharedParameters::Lock l(mParameters); 995 996 return startRecordingL(l.mParameters, false); 997 } 998 999 status_t Camera2Client::startRecordingL(Parameters ¶ms, bool restart) { 1000 status_t res; 1001 1002 ALOGV("%s: state == %d, restart = %d", __FUNCTION__, params.state, restart); 1003 1004 switch (params.state) { 1005 case Parameters::STOPPED: 1006 res = startPreviewL(params, false); 1007 if (res != OK) return res; 1008 // Make sure first preview request is submitted to the HAL device to avoid 1009 // two consecutive set of configure_streams being called into the HAL. 1010 // TODO: Refactor this to avoid initial preview configuration. 1011 syncWithDevice(); 1012 break; 1013 case Parameters::PREVIEW: 1014 // Ready to go 1015 break; 1016 case Parameters::RECORD: 1017 case Parameters::VIDEO_SNAPSHOT: 1018 // OK to call this when recording is already on, just skip unless 1019 // we're looking to restart 1020 if (!restart) return OK; 1021 break; 1022 default: 1023 ALOGE("%s: Camera %d: Can't start recording in state %s", 1024 __FUNCTION__, mCameraId, 1025 Parameters::getStateName(params.state)); 1026 return INVALID_OPERATION; 1027 }; 1028 1029 if (!params.storeMetadataInBuffers) { 1030 ALOGE("%s: Camera %d: Recording only supported in metadata mode, but " 1031 "non-metadata recording mode requested!", __FUNCTION__, 1032 mCameraId); 1033 return INVALID_OPERATION; 1034 } 1035 1036 if (!restart) { 1037 mCameraService->playSound(CameraService::SOUND_RECORDING); 1038 mStreamingProcessor->updateRecordingRequest(params); 1039 if (res != OK) { 1040 ALOGE("%s: Camera %d: Unable to update recording request: %s (%d)", 1041 __FUNCTION__, mCameraId, strerror(-res), res); 1042 return res; 1043 } 1044 } 1045 1046 // Not all devices can support a preview callback stream and a recording 1047 // stream at the same time, so assume none of them can. 1048 if (mCallbackProcessor->getStreamId() != NO_STREAM) { 1049 ALOGV("%s: Camera %d: Clearing out callback stream before " 1050 "creating recording stream", __FUNCTION__, mCameraId); 1051 res = mStreamingProcessor->stopStream(); 1052 if (res != OK) { 1053 ALOGE("%s: Camera %d: Can't stop streaming to delete callback stream", 1054 __FUNCTION__, mCameraId); 1055 return res; 1056 } 1057 res = mCallbackProcessor->deleteStream(); 1058 if (res != OK) { 1059 ALOGE("%s: Camera %d: Unable to delete callback stream before " 1060 "record: %s (%d)", __FUNCTION__, mCameraId, 1061 strerror(-res), res); 1062 return res; 1063 } 1064 } 1065 1066 // On current HALs, clean up ZSL before transitioning into recording 1067 if (mDeviceVersion != CAMERA_DEVICE_API_VERSION_2_0) { 1068 if (mZslProcessor->getStreamId() != NO_STREAM) { 1069 ALOGV("%s: Camera %d: Clearing out zsl stream before " 1070 "creating recording stream", __FUNCTION__, mCameraId); 1071 res = mStreamingProcessor->stopStream(); 1072 if (res != OK) { 1073 ALOGE("%s: Camera %d: Can't stop streaming to delete callback stream", 1074 __FUNCTION__, mCameraId); 1075 return res; 1076 } 1077 res = mDevice->waitUntilDrained(); 1078 if (res != OK) { 1079 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 1080 __FUNCTION__, mCameraId, strerror(-res), res); 1081 } 1082 res = mZslProcessor->clearZslQueue(); 1083 if (res != OK) { 1084 ALOGE("%s: Camera %d: Can't clear zsl queue", 1085 __FUNCTION__, mCameraId); 1086 return res; 1087 } 1088 res = mZslProcessor->deleteStream(); 1089 if (res != OK) { 1090 ALOGE("%s: Camera %d: Unable to delete zsl stream before " 1091 "record: %s (%d)", __FUNCTION__, mCameraId, 1092 strerror(-res), res); 1093 return res; 1094 } 1095 } 1096 } 1097 1098 // Disable callbacks if they're enabled; can't record and use callbacks, 1099 // and we can't fail record start without stagefright asserting. 1100 params.previewCallbackFlags = 0; 1101 1102 if (mDeviceVersion != CAMERA_DEVICE_API_VERSION_2_0) { 1103 // For newer devices, may need to reconfigure video snapshot JPEG sizes 1104 // during recording startup, so need a more complex sequence here to 1105 // ensure an early stream reconfiguration doesn't happen 1106 bool recordingStreamNeedsUpdate; 1107 res = mStreamingProcessor->recordingStreamNeedsUpdate(params, &recordingStreamNeedsUpdate); 1108 if (res != OK) { 1109 ALOGE("%s: Camera %d: Can't query recording stream", 1110 __FUNCTION__, mCameraId); 1111 return res; 1112 } 1113 1114 if (recordingStreamNeedsUpdate) { 1115 // Need to stop stream here so updateProcessorStream won't trigger configureStream 1116 // Right now camera device cannot handle configureStream failure gracefully 1117 // when device is streaming 1118 res = mStreamingProcessor->stopStream(); 1119 if (res != OK) { 1120 ALOGE("%s: Camera %d: Can't stop streaming to update record " 1121 "stream", __FUNCTION__, mCameraId); 1122 return res; 1123 } 1124 res = mDevice->waitUntilDrained(); 1125 if (res != OK) { 1126 ALOGE("%s: Camera %d: Waiting to stop streaming failed: " 1127 "%s (%d)", __FUNCTION__, mCameraId, 1128 strerror(-res), res); 1129 } 1130 1131 res = updateProcessorStream< 1132 StreamingProcessor, 1133 &StreamingProcessor::updateRecordingStream>( 1134 mStreamingProcessor, 1135 params); 1136 if (res != OK) { 1137 ALOGE("%s: Camera %d: Unable to update recording stream: " 1138 "%s (%d)", __FUNCTION__, mCameraId, 1139 strerror(-res), res); 1140 return res; 1141 } 1142 } 1143 } else { 1144 // Maintain call sequencing for HALv2 devices. 1145 res = updateProcessorStream< 1146 StreamingProcessor, 1147 &StreamingProcessor::updateRecordingStream>(mStreamingProcessor, 1148 params); 1149 if (res != OK) { 1150 ALOGE("%s: Camera %d: Unable to update recording stream: %s (%d)", 1151 __FUNCTION__, mCameraId, strerror(-res), res); 1152 return res; 1153 } 1154 } 1155 1156 Vector<int32_t> outputStreams; 1157 outputStreams.push(getPreviewStreamId()); 1158 outputStreams.push(getRecordingStreamId()); 1159 1160 res = mStreamingProcessor->startStream(StreamingProcessor::RECORD, 1161 outputStreams); 1162 1163 // startStream might trigger a configureStream call and device might fail 1164 // configureStream due to jpeg size > video size. Try again with jpeg size overridden 1165 // to video size. 1166 if (res == BAD_VALUE) { 1167 overrideVideoSnapshotSize(params); 1168 res = mStreamingProcessor->startStream(StreamingProcessor::RECORD, 1169 outputStreams); 1170 } 1171 1172 if (res != OK) { 1173 ALOGE("%s: Camera %d: Unable to start recording stream: %s (%d)", 1174 __FUNCTION__, mCameraId, strerror(-res), res); 1175 return res; 1176 } 1177 1178 if (params.state < Parameters::RECORD) { 1179 params.state = Parameters::RECORD; 1180 } 1181 1182 return OK; 1183 } 1184 1185 void Camera2Client::stopRecording() { 1186 ATRACE_CALL(); 1187 ALOGV("%s: E", __FUNCTION__); 1188 Mutex::Autolock icl(mBinderSerializationLock); 1189 SharedParameters::Lock l(mParameters); 1190 1191 status_t res; 1192 if ( (res = checkPid(__FUNCTION__) ) != OK) return; 1193 1194 switch (l.mParameters.state) { 1195 case Parameters::RECORD: 1196 // OK to stop 1197 break; 1198 case Parameters::STOPPED: 1199 case Parameters::PREVIEW: 1200 case Parameters::STILL_CAPTURE: 1201 case Parameters::VIDEO_SNAPSHOT: 1202 default: 1203 ALOGE("%s: Camera %d: Can't stop recording in state %s", 1204 __FUNCTION__, mCameraId, 1205 Parameters::getStateName(l.mParameters.state)); 1206 return; 1207 }; 1208 1209 mCameraService->playSound(CameraService::SOUND_RECORDING); 1210 1211 // Remove recording stream to prevent it from slowing down takePicture later 1212 if (!l.mParameters.recordingHint && l.mParameters.isJpegSizeOverridden()) { 1213 res = stopStream(); 1214 if (res != OK) { 1215 ALOGE("%s: Camera %d: Can't stop streaming: %s (%d)", 1216 __FUNCTION__, mCameraId, strerror(-res), res); 1217 } 1218 res = mDevice->waitUntilDrained(); 1219 if (res != OK) { 1220 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 1221 __FUNCTION__, mCameraId, strerror(-res), res); 1222 } 1223 // Clean up recording stream 1224 res = mStreamingProcessor->deleteRecordingStream(); 1225 if (res != OK) { 1226 ALOGE("%s: Camera %d: Unable to delete recording stream before " 1227 "stop preview: %s (%d)", 1228 __FUNCTION__, mCameraId, strerror(-res), res); 1229 } 1230 l.mParameters.recoverOverriddenJpegSize(); 1231 } 1232 1233 res = startPreviewL(l.mParameters, true); 1234 if (res != OK) { 1235 ALOGE("%s: Camera %d: Unable to return to preview", 1236 __FUNCTION__, mCameraId); 1237 } 1238 } 1239 1240 bool Camera2Client::recordingEnabled() { 1241 ATRACE_CALL(); 1242 Mutex::Autolock icl(mBinderSerializationLock); 1243 1244 if ( checkPid(__FUNCTION__) != OK) return false; 1245 1246 return recordingEnabledL(); 1247 } 1248 1249 bool Camera2Client::recordingEnabledL() { 1250 ATRACE_CALL(); 1251 SharedParameters::Lock l(mParameters); 1252 1253 return (l.mParameters.state == Parameters::RECORD 1254 || l.mParameters.state == Parameters::VIDEO_SNAPSHOT); 1255 } 1256 1257 void Camera2Client::releaseRecordingFrame(const sp<IMemory>& mem) { 1258 ATRACE_CALL(); 1259 Mutex::Autolock icl(mBinderSerializationLock); 1260 if ( checkPid(__FUNCTION__) != OK) return; 1261 1262 mStreamingProcessor->releaseRecordingFrame(mem); 1263 } 1264 1265 status_t Camera2Client::autoFocus() { 1266 ATRACE_CALL(); 1267 Mutex::Autolock icl(mBinderSerializationLock); 1268 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1269 status_t res; 1270 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1271 1272 int triggerId; 1273 bool notifyImmediately = false; 1274 bool notifySuccess = false; 1275 { 1276 SharedParameters::Lock l(mParameters); 1277 if (l.mParameters.state < Parameters::PREVIEW) { 1278 ALOGE("%s: Camera %d: Call autoFocus when preview is inactive (state = %d).", 1279 __FUNCTION__, mCameraId, l.mParameters.state); 1280 return INVALID_OPERATION; 1281 } 1282 1283 /** 1284 * If the camera does not support auto-focus, it is a no-op and 1285 * onAutoFocus(boolean, Camera) callback will be called immediately 1286 * with a fake value of success set to true. 1287 * 1288 * Similarly, if focus mode is set to INFINITY, there's no reason to 1289 * bother the HAL. 1290 */ 1291 if (l.mParameters.focusMode == Parameters::FOCUS_MODE_FIXED || 1292 l.mParameters.focusMode == Parameters::FOCUS_MODE_INFINITY) { 1293 notifyImmediately = true; 1294 notifySuccess = true; 1295 } 1296 /** 1297 * If we're in CAF mode, and AF has already been locked, just fire back 1298 * the callback right away; the HAL would not send a notification since 1299 * no state change would happen on a AF trigger. 1300 */ 1301 if ( (l.mParameters.focusMode == Parameters::FOCUS_MODE_CONTINUOUS_PICTURE || 1302 l.mParameters.focusMode == Parameters::FOCUS_MODE_CONTINUOUS_VIDEO) && 1303 l.mParameters.focusState == ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED ) { 1304 notifyImmediately = true; 1305 notifySuccess = true; 1306 } 1307 /** 1308 * Send immediate notification back to client 1309 */ 1310 if (notifyImmediately) { 1311 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1312 if (l.mRemoteCallback != 0) { 1313 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS, 1314 notifySuccess ? 1 : 0, 0); 1315 } 1316 return OK; 1317 } 1318 /** 1319 * Handle quirk mode for AF in scene modes 1320 */ 1321 if (l.mParameters.quirks.triggerAfWithAuto && 1322 l.mParameters.sceneMode != ANDROID_CONTROL_SCENE_MODE_DISABLED && 1323 l.mParameters.focusMode != Parameters::FOCUS_MODE_AUTO && 1324 !l.mParameters.focusingAreas[0].isEmpty()) { 1325 ALOGV("%s: Quirk: Switching from focusMode %d to AUTO", 1326 __FUNCTION__, l.mParameters.focusMode); 1327 l.mParameters.shadowFocusMode = l.mParameters.focusMode; 1328 l.mParameters.focusMode = Parameters::FOCUS_MODE_AUTO; 1329 updateRequests(l.mParameters); 1330 } 1331 1332 l.mParameters.currentAfTriggerId = ++l.mParameters.afTriggerCounter; 1333 triggerId = l.mParameters.currentAfTriggerId; 1334 } 1335 ATRACE_ASYNC_BEGIN(kAutofocusLabel, triggerId); 1336 1337 syncWithDevice(); 1338 1339 mDevice->triggerAutofocus(triggerId); 1340 1341 return OK; 1342 } 1343 1344 status_t Camera2Client::cancelAutoFocus() { 1345 ATRACE_CALL(); 1346 Mutex::Autolock icl(mBinderSerializationLock); 1347 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1348 status_t res; 1349 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1350 1351 int triggerId; 1352 { 1353 SharedParameters::Lock l(mParameters); 1354 // Canceling does nothing in FIXED or INFINITY modes 1355 if (l.mParameters.focusMode == Parameters::FOCUS_MODE_FIXED || 1356 l.mParameters.focusMode == Parameters::FOCUS_MODE_INFINITY) { 1357 return OK; 1358 } 1359 1360 // An active AF trigger is canceled 1361 if (l.mParameters.afTriggerCounter == l.mParameters.currentAfTriggerId) { 1362 ATRACE_ASYNC_END(kAutofocusLabel, l.mParameters.currentAfTriggerId); 1363 } 1364 1365 triggerId = ++l.mParameters.afTriggerCounter; 1366 1367 // When using triggerAfWithAuto quirk, may need to reset focus mode to 1368 // the real state at this point. No need to cancel explicitly if 1369 // changing the AF mode. 1370 if (l.mParameters.shadowFocusMode != Parameters::FOCUS_MODE_INVALID) { 1371 ALOGV("%s: Quirk: Restoring focus mode to %d", __FUNCTION__, 1372 l.mParameters.shadowFocusMode); 1373 l.mParameters.focusMode = l.mParameters.shadowFocusMode; 1374 l.mParameters.shadowFocusMode = Parameters::FOCUS_MODE_INVALID; 1375 updateRequests(l.mParameters); 1376 1377 return OK; 1378 } 1379 if (l.mParameters.zslMode) { 1380 mZslProcessor->clearZslQueue(); 1381 } 1382 } 1383 syncWithDevice(); 1384 1385 mDevice->triggerCancelAutofocus(triggerId); 1386 1387 return OK; 1388 } 1389 1390 status_t Camera2Client::takePicture(int msgType) { 1391 ATRACE_CALL(); 1392 Mutex::Autolock icl(mBinderSerializationLock); 1393 status_t res; 1394 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1395 1396 int takePictureCounter; 1397 { 1398 SharedParameters::Lock l(mParameters); 1399 switch (l.mParameters.state) { 1400 case Parameters::DISCONNECTED: 1401 case Parameters::STOPPED: 1402 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 1403 ALOGE("%s: Camera %d: Cannot take picture without preview enabled", 1404 __FUNCTION__, mCameraId); 1405 return INVALID_OPERATION; 1406 case Parameters::PREVIEW: 1407 // Good to go for takePicture 1408 res = commandStopFaceDetectionL(l.mParameters); 1409 if (res != OK) { 1410 ALOGE("%s: Camera %d: Unable to stop face detection for still capture", 1411 __FUNCTION__, mCameraId); 1412 return res; 1413 } 1414 l.mParameters.state = Parameters::STILL_CAPTURE; 1415 1416 // Remove recording stream to prevent video snapshot jpeg logic kicking in 1417 if (l.mParameters.isJpegSizeOverridden() && 1418 mStreamingProcessor->getRecordingStreamId() != NO_STREAM) { 1419 res = mStreamingProcessor->togglePauseStream(/*pause*/true); 1420 if (res != OK) { 1421 ALOGE("%s: Camera %d: Can't pause streaming: %s (%d)", 1422 __FUNCTION__, mCameraId, strerror(-res), res); 1423 } 1424 res = mDevice->waitUntilDrained(); 1425 if (res != OK) { 1426 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 1427 __FUNCTION__, mCameraId, strerror(-res), res); 1428 } 1429 // Clean up recording stream 1430 res = mStreamingProcessor->deleteRecordingStream(); 1431 if (res != OK) { 1432 ALOGE("%s: Camera %d: Unable to delete recording stream before " 1433 "stop preview: %s (%d)", 1434 __FUNCTION__, mCameraId, strerror(-res), res); 1435 } 1436 res = mStreamingProcessor->togglePauseStream(/*pause*/false); 1437 if (res != OK) { 1438 ALOGE("%s: Camera %d: Can't unpause streaming: %s (%d)", 1439 __FUNCTION__, mCameraId, strerror(-res), res); 1440 } 1441 l.mParameters.recoverOverriddenJpegSize(); 1442 } 1443 break; 1444 case Parameters::RECORD: 1445 // Good to go for video snapshot 1446 l.mParameters.state = Parameters::VIDEO_SNAPSHOT; 1447 break; 1448 case Parameters::STILL_CAPTURE: 1449 case Parameters::VIDEO_SNAPSHOT: 1450 ALOGE("%s: Camera %d: Already taking a picture", 1451 __FUNCTION__, mCameraId); 1452 return INVALID_OPERATION; 1453 } 1454 1455 ALOGV("%s: Camera %d: Starting picture capture", __FUNCTION__, mCameraId); 1456 1457 int lastJpegStreamId = mJpegProcessor->getStreamId(); 1458 res = updateProcessorStream(mJpegProcessor, l.mParameters); 1459 // If video snapshot fail to configureStream, try override video snapshot size to 1460 // video size 1461 if (res == BAD_VALUE && l.mParameters.state == Parameters::VIDEO_SNAPSHOT) { 1462 overrideVideoSnapshotSize(l.mParameters); 1463 res = updateProcessorStream(mJpegProcessor, l.mParameters); 1464 } 1465 if (res != OK) { 1466 ALOGE("%s: Camera %d: Can't set up still image stream: %s (%d)", 1467 __FUNCTION__, mCameraId, strerror(-res), res); 1468 return res; 1469 } 1470 takePictureCounter = ++l.mParameters.takePictureCounter; 1471 1472 // Clear ZSL buffer queue when Jpeg size is changed. 1473 bool jpegStreamChanged = mJpegProcessor->getStreamId() != lastJpegStreamId; 1474 if (l.mParameters.zslMode && jpegStreamChanged) { 1475 ALOGV("%s: Camera %d: Clear ZSL buffer queue when Jpeg size is changed", 1476 __FUNCTION__, mCameraId); 1477 mZslProcessor->clearZslQueue(); 1478 } 1479 } 1480 1481 ATRACE_ASYNC_BEGIN(kTakepictureLabel, takePictureCounter); 1482 1483 // Need HAL to have correct settings before (possibly) triggering precapture 1484 syncWithDevice(); 1485 1486 res = mCaptureSequencer->startCapture(msgType); 1487 if (res != OK) { 1488 ALOGE("%s: Camera %d: Unable to start capture: %s (%d)", 1489 __FUNCTION__, mCameraId, strerror(-res), res); 1490 } 1491 1492 return res; 1493 } 1494 1495 status_t Camera2Client::setParameters(const String8& params) { 1496 ATRACE_CALL(); 1497 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1498 Mutex::Autolock icl(mBinderSerializationLock); 1499 status_t res; 1500 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1501 1502 SharedParameters::Lock l(mParameters); 1503 1504 Parameters::focusMode_t focusModeBefore = l.mParameters.focusMode; 1505 res = l.mParameters.set(params); 1506 if (res != OK) return res; 1507 Parameters::focusMode_t focusModeAfter = l.mParameters.focusMode; 1508 1509 if (l.mParameters.zslMode && focusModeAfter != focusModeBefore) { 1510 mZslProcessor->clearZslQueue(); 1511 } 1512 1513 res = updateRequests(l.mParameters); 1514 1515 return res; 1516 } 1517 1518 String8 Camera2Client::getParameters() const { 1519 ATRACE_CALL(); 1520 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1521 Mutex::Autolock icl(mBinderSerializationLock); 1522 // The camera service can unconditionally get the parameters at all times 1523 if (getCallingPid() != mServicePid && checkPid(__FUNCTION__) != OK) return String8(); 1524 1525 SharedParameters::ReadLock l(mParameters); 1526 1527 return l.mParameters.get(); 1528 } 1529 1530 status_t Camera2Client::sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) { 1531 ATRACE_CALL(); 1532 Mutex::Autolock icl(mBinderSerializationLock); 1533 status_t res; 1534 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1535 1536 ALOGV("%s: Camera %d: Command %d (%d, %d)", __FUNCTION__, mCameraId, 1537 cmd, arg1, arg2); 1538 1539 switch (cmd) { 1540 case CAMERA_CMD_START_SMOOTH_ZOOM: 1541 return commandStartSmoothZoomL(); 1542 case CAMERA_CMD_STOP_SMOOTH_ZOOM: 1543 return commandStopSmoothZoomL(); 1544 case CAMERA_CMD_SET_DISPLAY_ORIENTATION: 1545 return commandSetDisplayOrientationL(arg1); 1546 case CAMERA_CMD_ENABLE_SHUTTER_SOUND: 1547 return commandEnableShutterSoundL(arg1 == 1); 1548 case CAMERA_CMD_PLAY_RECORDING_SOUND: 1549 return commandPlayRecordingSoundL(); 1550 case CAMERA_CMD_START_FACE_DETECTION: 1551 return commandStartFaceDetectionL(arg1); 1552 case CAMERA_CMD_STOP_FACE_DETECTION: { 1553 SharedParameters::Lock l(mParameters); 1554 return commandStopFaceDetectionL(l.mParameters); 1555 } 1556 case CAMERA_CMD_ENABLE_FOCUS_MOVE_MSG: 1557 return commandEnableFocusMoveMsgL(arg1 == 1); 1558 case CAMERA_CMD_PING: 1559 return commandPingL(); 1560 case CAMERA_CMD_SET_VIDEO_BUFFER_COUNT: 1561 return commandSetVideoBufferCountL(arg1); 1562 default: 1563 ALOGE("%s: Unknown command %d (arguments %d, %d)", 1564 __FUNCTION__, cmd, arg1, arg2); 1565 return BAD_VALUE; 1566 } 1567 } 1568 1569 status_t Camera2Client::commandStartSmoothZoomL() { 1570 ALOGE("%s: Unimplemented!", __FUNCTION__); 1571 return OK; 1572 } 1573 1574 status_t Camera2Client::commandStopSmoothZoomL() { 1575 ALOGE("%s: Unimplemented!", __FUNCTION__); 1576 return OK; 1577 } 1578 1579 status_t Camera2Client::commandSetDisplayOrientationL(int degrees) { 1580 int transform = Parameters::degToTransform(degrees, 1581 mCameraFacing == CAMERA_FACING_FRONT); 1582 if (transform == -1) { 1583 ALOGE("%s: Camera %d: Error setting %d as display orientation value", 1584 __FUNCTION__, mCameraId, degrees); 1585 return BAD_VALUE; 1586 } 1587 SharedParameters::Lock l(mParameters); 1588 if (transform != l.mParameters.previewTransform && 1589 getPreviewStreamId() != NO_STREAM) { 1590 mDevice->setStreamTransform(getPreviewStreamId(), transform); 1591 } 1592 l.mParameters.previewTransform = transform; 1593 return OK; 1594 } 1595 1596 status_t Camera2Client::commandEnableShutterSoundL(bool enable) { 1597 SharedParameters::Lock l(mParameters); 1598 if (enable) { 1599 l.mParameters.playShutterSound = true; 1600 return OK; 1601 } 1602 1603 // the camera2 api legacy mode can unconditionally disable the shutter sound 1604 if (mLegacyMode) { 1605 ALOGV("%s: Disable shutter sound in legacy mode", __FUNCTION__); 1606 l.mParameters.playShutterSound = false; 1607 return OK; 1608 } 1609 1610 // Disabling shutter sound may not be allowed. In that case only 1611 // allow the mediaserver process to disable the sound. 1612 char value[PROPERTY_VALUE_MAX]; 1613 property_get("ro.camera.sound.forced", value, "0"); 1614 if (strncmp(value, "0", 2) != 0) { 1615 // Disabling shutter sound is not allowed. Deny if the current 1616 // process is not mediaserver. 1617 if (getCallingPid() != getpid()) { 1618 ALOGE("Failed to disable shutter sound. Permission denied (pid %d)", 1619 getCallingPid()); 1620 return PERMISSION_DENIED; 1621 } 1622 } 1623 1624 l.mParameters.playShutterSound = false; 1625 return OK; 1626 } 1627 1628 status_t Camera2Client::commandPlayRecordingSoundL() { 1629 mCameraService->playSound(CameraService::SOUND_RECORDING); 1630 return OK; 1631 } 1632 1633 status_t Camera2Client::commandStartFaceDetectionL(int /*type*/) { 1634 ALOGV("%s: Camera %d: Starting face detection", 1635 __FUNCTION__, mCameraId); 1636 status_t res; 1637 SharedParameters::Lock l(mParameters); 1638 switch (l.mParameters.state) { 1639 case Parameters::DISCONNECTED: 1640 case Parameters::STOPPED: 1641 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 1642 case Parameters::STILL_CAPTURE: 1643 ALOGE("%s: Camera %d: Cannot start face detection without preview active", 1644 __FUNCTION__, mCameraId); 1645 return INVALID_OPERATION; 1646 case Parameters::PREVIEW: 1647 case Parameters::RECORD: 1648 case Parameters::VIDEO_SNAPSHOT: 1649 // Good to go for starting face detect 1650 break; 1651 } 1652 // Ignoring type 1653 if (l.mParameters.fastInfo.bestFaceDetectMode == 1654 ANDROID_STATISTICS_FACE_DETECT_MODE_OFF) { 1655 ALOGE("%s: Camera %d: Face detection not supported", 1656 __FUNCTION__, mCameraId); 1657 return BAD_VALUE; 1658 } 1659 if (l.mParameters.enableFaceDetect) return OK; 1660 1661 l.mParameters.enableFaceDetect = true; 1662 1663 res = updateRequests(l.mParameters); 1664 1665 return res; 1666 } 1667 1668 status_t Camera2Client::commandStopFaceDetectionL(Parameters ¶ms) { 1669 status_t res = OK; 1670 ALOGV("%s: Camera %d: Stopping face detection", 1671 __FUNCTION__, mCameraId); 1672 1673 if (!params.enableFaceDetect) return OK; 1674 1675 params.enableFaceDetect = false; 1676 1677 if (params.state == Parameters::PREVIEW 1678 || params.state == Parameters::RECORD 1679 || params.state == Parameters::VIDEO_SNAPSHOT) { 1680 res = updateRequests(params); 1681 } 1682 1683 return res; 1684 } 1685 1686 status_t Camera2Client::commandEnableFocusMoveMsgL(bool enable) { 1687 SharedParameters::Lock l(mParameters); 1688 l.mParameters.enableFocusMoveMessages = enable; 1689 1690 return OK; 1691 } 1692 1693 status_t Camera2Client::commandPingL() { 1694 // Always ping back if access is proper and device is alive 1695 SharedParameters::Lock l(mParameters); 1696 if (l.mParameters.state != Parameters::DISCONNECTED) { 1697 return OK; 1698 } else { 1699 return NO_INIT; 1700 } 1701 } 1702 1703 status_t Camera2Client::commandSetVideoBufferCountL(size_t count) { 1704 if (recordingEnabledL()) { 1705 ALOGE("%s: Camera %d: Error setting video buffer count after " 1706 "recording was started", __FUNCTION__, mCameraId); 1707 return INVALID_OPERATION; 1708 } 1709 1710 return mStreamingProcessor->setRecordingBufferCount(count); 1711 } 1712 1713 /** Device-related methods */ 1714 void Camera2Client::notifyAutoFocus(uint8_t newState, int triggerId) { 1715 ALOGV("%s: Autofocus state now %d, last trigger %d", 1716 __FUNCTION__, newState, triggerId); 1717 bool sendCompletedMessage = false; 1718 bool sendMovingMessage = false; 1719 1720 bool success = false; 1721 bool afInMotion = false; 1722 { 1723 SharedParameters::Lock l(mParameters); 1724 // Trace end of AF state 1725 char tmp[32]; 1726 if (l.mParameters.afStateCounter > 0) { 1727 camera_metadata_enum_snprint( 1728 ANDROID_CONTROL_AF_STATE, l.mParameters.focusState, tmp, sizeof(tmp)); 1729 ATRACE_ASYNC_END(tmp, l.mParameters.afStateCounter); 1730 } 1731 1732 // Update state 1733 l.mParameters.focusState = newState; 1734 l.mParameters.afStateCounter++; 1735 1736 // Trace start of AF state 1737 1738 camera_metadata_enum_snprint( 1739 ANDROID_CONTROL_AF_STATE, l.mParameters.focusState, tmp, sizeof(tmp)); 1740 ATRACE_ASYNC_BEGIN(tmp, l.mParameters.afStateCounter); 1741 1742 switch (l.mParameters.focusMode) { 1743 case Parameters::FOCUS_MODE_AUTO: 1744 case Parameters::FOCUS_MODE_MACRO: 1745 // Don't send notifications upstream if they're not for the current AF 1746 // trigger. For example, if cancel was called in between, or if we 1747 // already sent a notification about this AF call. 1748 if (triggerId != l.mParameters.currentAfTriggerId) break; 1749 switch (newState) { 1750 case ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED: 1751 success = true; 1752 // no break 1753 case ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED: 1754 sendCompletedMessage = true; 1755 l.mParameters.currentAfTriggerId = -1; 1756 break; 1757 case ANDROID_CONTROL_AF_STATE_ACTIVE_SCAN: 1758 // Just starting focusing, ignore 1759 break; 1760 case ANDROID_CONTROL_AF_STATE_INACTIVE: 1761 case ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN: 1762 case ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED: 1763 case ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED: 1764 default: 1765 // Unexpected in AUTO/MACRO mode 1766 ALOGE("%s: Unexpected AF state transition in AUTO/MACRO mode: %d", 1767 __FUNCTION__, newState); 1768 break; 1769 } 1770 break; 1771 case Parameters::FOCUS_MODE_CONTINUOUS_VIDEO: 1772 case Parameters::FOCUS_MODE_CONTINUOUS_PICTURE: 1773 switch (newState) { 1774 case ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED: 1775 success = true; 1776 // no break 1777 case ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED: 1778 // Don't send notifications upstream if they're not for 1779 // the current AF trigger. For example, if cancel was 1780 // called in between, or if we already sent a 1781 // notification about this AF call. 1782 // Send both a 'AF done' callback and a 'AF move' callback 1783 if (triggerId != l.mParameters.currentAfTriggerId) break; 1784 sendCompletedMessage = true; 1785 afInMotion = false; 1786 if (l.mParameters.enableFocusMoveMessages && 1787 l.mParameters.afInMotion) { 1788 sendMovingMessage = true; 1789 } 1790 l.mParameters.currentAfTriggerId = -1; 1791 break; 1792 case ANDROID_CONTROL_AF_STATE_INACTIVE: 1793 // Cancel was called, or we switched state; care if 1794 // currently moving 1795 afInMotion = false; 1796 if (l.mParameters.enableFocusMoveMessages && 1797 l.mParameters.afInMotion) { 1798 sendMovingMessage = true; 1799 } 1800 break; 1801 case ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN: 1802 // Start passive scan, inform upstream 1803 afInMotion = true; 1804 // no break 1805 case ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED: 1806 case ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED: 1807 // Stop passive scan, inform upstream 1808 if (l.mParameters.enableFocusMoveMessages) { 1809 sendMovingMessage = true; 1810 } 1811 break; 1812 } 1813 l.mParameters.afInMotion = afInMotion; 1814 break; 1815 case Parameters::FOCUS_MODE_EDOF: 1816 case Parameters::FOCUS_MODE_INFINITY: 1817 case Parameters::FOCUS_MODE_FIXED: 1818 default: 1819 if (newState != ANDROID_CONTROL_AF_STATE_INACTIVE) { 1820 ALOGE("%s: Unexpected AF state change %d " 1821 "(ID %d) in focus mode %d", 1822 __FUNCTION__, newState, triggerId, 1823 l.mParameters.focusMode); 1824 } 1825 } 1826 } 1827 if (sendMovingMessage) { 1828 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1829 if (l.mRemoteCallback != 0) { 1830 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS_MOVE, 1831 afInMotion ? 1 : 0, 0); 1832 } 1833 } 1834 if (sendCompletedMessage) { 1835 ATRACE_ASYNC_END(kAutofocusLabel, triggerId); 1836 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1837 if (l.mRemoteCallback != 0) { 1838 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS, 1839 success ? 1 : 0, 0); 1840 } 1841 } 1842 } 1843 1844 void Camera2Client::notifyAutoExposure(uint8_t newState, int triggerId) { 1845 ALOGV("%s: Autoexposure state now %d, last trigger %d", 1846 __FUNCTION__, newState, triggerId); 1847 mCaptureSequencer->notifyAutoExposure(newState, triggerId); 1848 } 1849 1850 camera2::SharedParameters& Camera2Client::getParameters() { 1851 return mParameters; 1852 } 1853 1854 int Camera2Client::getPreviewStreamId() const { 1855 return mStreamingProcessor->getPreviewStreamId(); 1856 } 1857 1858 int Camera2Client::getCaptureStreamId() const { 1859 return mJpegProcessor->getStreamId(); 1860 } 1861 1862 int Camera2Client::getCallbackStreamId() const { 1863 return mCallbackProcessor->getStreamId(); 1864 } 1865 1866 int Camera2Client::getRecordingStreamId() const { 1867 return mStreamingProcessor->getRecordingStreamId(); 1868 } 1869 1870 int Camera2Client::getZslStreamId() const { 1871 return mZslProcessor->getStreamId(); 1872 } 1873 1874 status_t Camera2Client::registerFrameListener(int32_t minId, int32_t maxId, 1875 wp<camera2::FrameProcessor::FilteredListener> listener, bool sendPartials) { 1876 return mFrameProcessor->registerListener(minId, maxId, listener, sendPartials); 1877 } 1878 1879 status_t Camera2Client::removeFrameListener(int32_t minId, int32_t maxId, 1880 wp<camera2::FrameProcessor::FilteredListener> listener) { 1881 return mFrameProcessor->removeListener(minId, maxId, listener); 1882 } 1883 1884 status_t Camera2Client::stopStream() { 1885 return mStreamingProcessor->stopStream(); 1886 } 1887 1888 const int32_t Camera2Client::kPreviewRequestIdStart; 1889 const int32_t Camera2Client::kPreviewRequestIdEnd; 1890 const int32_t Camera2Client::kRecordingRequestIdStart; 1891 const int32_t Camera2Client::kRecordingRequestIdEnd; 1892 const int32_t Camera2Client::kCaptureRequestIdStart; 1893 const int32_t Camera2Client::kCaptureRequestIdEnd; 1894 1895 /** Utility methods */ 1896 1897 status_t Camera2Client::updateRequests(Parameters ¶ms) { 1898 status_t res; 1899 1900 ALOGV("%s: Camera %d: state = %d", __FUNCTION__, getCameraId(), params.state); 1901 1902 res = mStreamingProcessor->incrementStreamingIds(); 1903 if (res != OK) { 1904 ALOGE("%s: Camera %d: Unable to increment request IDs: %s (%d)", 1905 __FUNCTION__, mCameraId, strerror(-res), res); 1906 return res; 1907 } 1908 1909 res = mStreamingProcessor->updatePreviewRequest(params); 1910 if (res != OK) { 1911 ALOGE("%s: Camera %d: Unable to update preview request: %s (%d)", 1912 __FUNCTION__, mCameraId, strerror(-res), res); 1913 return res; 1914 } 1915 res = mStreamingProcessor->updateRecordingRequest(params); 1916 if (res != OK) { 1917 ALOGE("%s: Camera %d: Unable to update recording request: %s (%d)", 1918 __FUNCTION__, mCameraId, strerror(-res), res); 1919 return res; 1920 } 1921 1922 if (params.state == Parameters::PREVIEW) { 1923 res = startPreviewL(params, true); 1924 if (res != OK) { 1925 ALOGE("%s: Camera %d: Error streaming new preview request: %s (%d)", 1926 __FUNCTION__, mCameraId, strerror(-res), res); 1927 return res; 1928 } 1929 } else if (params.state == Parameters::RECORD || 1930 params.state == Parameters::VIDEO_SNAPSHOT) { 1931 res = startRecordingL(params, true); 1932 if (res != OK) { 1933 ALOGE("%s: Camera %d: Error streaming new record request: %s (%d)", 1934 __FUNCTION__, mCameraId, strerror(-res), res); 1935 return res; 1936 } 1937 } 1938 return res; 1939 } 1940 1941 1942 size_t Camera2Client::calculateBufferSize(int width, int height, 1943 int format, int stride) { 1944 switch (format) { 1945 case HAL_PIXEL_FORMAT_YCbCr_422_SP: // NV16 1946 return width * height * 2; 1947 case HAL_PIXEL_FORMAT_YCrCb_420_SP: // NV21 1948 return width * height * 3 / 2; 1949 case HAL_PIXEL_FORMAT_YCbCr_422_I: // YUY2 1950 return width * height * 2; 1951 case HAL_PIXEL_FORMAT_YV12: { // YV12 1952 size_t ySize = stride * height; 1953 size_t uvStride = (stride / 2 + 0xF) & ~0xF; 1954 size_t uvSize = uvStride * height / 2; 1955 return ySize + uvSize * 2; 1956 } 1957 case HAL_PIXEL_FORMAT_RGB_565: 1958 return width * height * 2; 1959 case HAL_PIXEL_FORMAT_RGBA_8888: 1960 return width * height * 4; 1961 case HAL_PIXEL_FORMAT_RAW_SENSOR: 1962 return width * height * 2; 1963 default: 1964 ALOGE("%s: Unknown preview format: %x", 1965 __FUNCTION__, format); 1966 return 0; 1967 } 1968 } 1969 1970 status_t Camera2Client::syncWithDevice() { 1971 ATRACE_CALL(); 1972 const nsecs_t kMaxSyncTimeout = 500000000; // 500 ms 1973 status_t res; 1974 1975 int32_t activeRequestId = mStreamingProcessor->getActiveRequestId(); 1976 if (activeRequestId == 0) return OK; 1977 1978 res = mDevice->waitUntilRequestReceived(activeRequestId, kMaxSyncTimeout); 1979 if (res == TIMED_OUT) { 1980 ALOGE("%s: Camera %d: Timed out waiting sync with HAL", 1981 __FUNCTION__, mCameraId); 1982 } else if (res != OK) { 1983 ALOGE("%s: Camera %d: Error while waiting to sync with HAL", 1984 __FUNCTION__, mCameraId); 1985 } 1986 return res; 1987 } 1988 1989 template <typename ProcessorT> 1990 status_t Camera2Client::updateProcessorStream(sp<ProcessorT> processor, 1991 camera2::Parameters params) { 1992 // No default template arguments until C++11, so we need this overload 1993 return updateProcessorStream<ProcessorT, &ProcessorT::updateStream>( 1994 processor, params); 1995 } 1996 1997 template <typename ProcessorT, 1998 status_t (ProcessorT::*updateStreamF)(const Parameters &)> 1999 status_t Camera2Client::updateProcessorStream(sp<ProcessorT> processor, 2000 Parameters params) { 2001 status_t res; 2002 2003 // Get raw pointer since sp<T> doesn't have operator->* 2004 ProcessorT *processorPtr = processor.get(); 2005 res = (processorPtr->*updateStreamF)(params); 2006 2007 /** 2008 * Can't update the stream if it's busy? 2009 * 2010 * Then we need to stop the device (by temporarily clearing the request 2011 * queue) and then try again. Resume streaming once we're done. 2012 */ 2013 if (res == -EBUSY) { 2014 ALOGV("%s: Camera %d: Pausing to update stream", __FUNCTION__, 2015 mCameraId); 2016 res = mStreamingProcessor->togglePauseStream(/*pause*/true); 2017 if (res != OK) { 2018 ALOGE("%s: Camera %d: Can't pause streaming: %s (%d)", 2019 __FUNCTION__, mCameraId, strerror(-res), res); 2020 } 2021 2022 res = mDevice->waitUntilDrained(); 2023 if (res != OK) { 2024 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 2025 __FUNCTION__, mCameraId, strerror(-res), res); 2026 } 2027 2028 res = (processorPtr->*updateStreamF)(params); 2029 if (res != OK) { 2030 ALOGE("%s: Camera %d: Failed to update processing stream " 2031 " despite having halted streaming first: %s (%d)", 2032 __FUNCTION__, mCameraId, strerror(-res), res); 2033 } 2034 2035 res = mStreamingProcessor->togglePauseStream(/*pause*/false); 2036 if (res != OK) { 2037 ALOGE("%s: Camera %d: Can't unpause streaming: %s (%d)", 2038 __FUNCTION__, mCameraId, strerror(-res), res); 2039 } 2040 } 2041 2042 return res; 2043 } 2044 2045 status_t Camera2Client::overrideVideoSnapshotSize(Parameters ¶ms) { 2046 ALOGV("%s: Camera %d: configure still size to video size before recording" 2047 , __FUNCTION__, mCameraId); 2048 params.overrideJpegSizeByVideoSize(); 2049 status_t res = updateProcessorStream(mJpegProcessor, params); 2050 if (res != OK) { 2051 ALOGE("%s: Camera %d: Can't override video snapshot size to video size: %s (%d)", 2052 __FUNCTION__, mCameraId, strerror(-res), res); 2053 } 2054 return res; 2055 } 2056 2057 const char* Camera2Client::kAutofocusLabel = "autofocus"; 2058 const char* Camera2Client::kTakepictureLabel = "take_picture"; 2059 2060 } // namespace android 2061
