Camera2Client.cpp revision 25a0aef19e170d2695f64b4c48296e7914155a88
1/* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define LOG_TAG "Camera2Client" 18#define ATRACE_TAG ATRACE_TAG_CAMERA 19//#define LOG_NDEBUG 0 20 21#include <inttypes.h> 22#include <utils/Log.h> 23#include <utils/Trace.h> 24 25#include <cutils/properties.h> 26#include <gui/Surface.h> 27 28#include "api1/Camera2Client.h" 29 30#include "api1/client2/StreamingProcessor.h" 31#include "api1/client2/JpegProcessor.h" 32#include "api1/client2/CaptureSequencer.h" 33#include "api1/client2/CallbackProcessor.h" 34#include "api1/client2/ZslProcessor.h" 35#include "api1/client2/ZslProcessor3.h" 36 37#define ALOG1(...) ALOGD_IF(gLogLevel >= 1, __VA_ARGS__); 38#define ALOG2(...) ALOGD_IF(gLogLevel >= 2, __VA_ARGS__); 39 40namespace android { 41using namespace camera2; 42 43static int getCallingPid() { 44 return IPCThreadState::self()->getCallingPid(); 45} 46 47// Interface used by CameraService 48 49Camera2Client::Camera2Client(const sp<CameraService>& cameraService, 50 const sp<ICameraClient>& cameraClient, 51 const String16& clientPackageName, 52 int cameraId, 53 int cameraFacing, 54 int clientPid, 55 uid_t clientUid, 56 int servicePid): 57 Camera2ClientBase(cameraService, cameraClient, clientPackageName, 58 cameraId, cameraFacing, clientPid, clientUid, servicePid), 59 mParameters(cameraId, cameraFacing) 60{ 61 ATRACE_CALL(); 62 63 SharedParameters::Lock l(mParameters); 64 l.mParameters.state = Parameters::DISCONNECTED; 65} 66 67status_t Camera2Client::initialize(camera_module_t *module) 68{ 69 ATRACE_CALL(); 70 ALOGV("%s: Initializing client for camera %d", __FUNCTION__, mCameraId); 71 status_t res; 72 73 res = Camera2ClientBase::initialize(module); 74 if (res != OK) { 75 return res; 76 } 77 78 { 79 SharedParameters::Lock l(mParameters); 80 81 res = l.mParameters.initialize(&(mDevice->info()), mDeviceVersion); 82 if (res != OK) { 83 ALOGE("%s: Camera %d: unable to build defaults: %s (%d)", 84 __FUNCTION__, mCameraId, strerror(-res), res); 85 return NO_INIT; 86 } 87 } 88 89 String8 threadName; 90 91 mStreamingProcessor = new StreamingProcessor(this); 92 threadName = String8::format("C2-%d-StreamProc", 93 mCameraId); 94 mStreamingProcessor->run(threadName.string()); 95 96 mFrameProcessor = new FrameProcessor(mDevice, this); 97 threadName = String8::format("C2-%d-FrameProc", 98 mCameraId); 99 mFrameProcessor->run(threadName.string()); 100 101 mCaptureSequencer = new CaptureSequencer(this); 102 threadName = String8::format("C2-%d-CaptureSeq", 103 mCameraId); 104 mCaptureSequencer->run(threadName.string()); 105 106 mJpegProcessor = new JpegProcessor(this, mCaptureSequencer); 107 threadName = String8::format("C2-%d-JpegProc", 108 mCameraId); 109 mJpegProcessor->run(threadName.string()); 110 111 switch (mDeviceVersion) { 112 case CAMERA_DEVICE_API_VERSION_2_0: { 113 sp<ZslProcessor> zslProc = 114 new ZslProcessor(this, mCaptureSequencer); 115 mZslProcessor = zslProc; 116 mZslProcessorThread = zslProc; 117 break; 118 } 119 case CAMERA_DEVICE_API_VERSION_3_0: 120 case CAMERA_DEVICE_API_VERSION_3_1: 121 case CAMERA_DEVICE_API_VERSION_3_2: { 122 sp<ZslProcessor3> zslProc = 123 new ZslProcessor3(this, mCaptureSequencer); 124 mZslProcessor = zslProc; 125 mZslProcessorThread = zslProc; 126 break; 127 } 128 default: 129 break; 130 } 131 threadName = String8::format("C2-%d-ZslProc", 132 mCameraId); 133 mZslProcessorThread->run(threadName.string()); 134 135 mCallbackProcessor = new CallbackProcessor(this); 136 threadName = String8::format("C2-%d-CallbkProc", 137 mCameraId); 138 mCallbackProcessor->run(threadName.string()); 139 140 if (gLogLevel >= 1) { 141 SharedParameters::Lock l(mParameters); 142 ALOGD("%s: Default parameters converted from camera %d:", __FUNCTION__, 143 mCameraId); 144 ALOGD("%s", l.mParameters.paramsFlattened.string()); 145 } 146 147 return OK; 148} 149 150Camera2Client::~Camera2Client() { 151 ATRACE_CALL(); 152 ALOGV("~Camera2Client"); 153 154 mDestructionStarted = true; 155 156 disconnect(); 157 158 ALOGI("Camera %d: Closed", mCameraId); 159} 160 161status_t Camera2Client::dump(int fd, const Vector<String16>& args) { 162 String8 result; 163 result.appendFormat("Client2[%d] (%p) Client: %s PID: %d, dump:\n", 164 mCameraId, 165 getRemoteCallback()->asBinder().get(), 166 String8(mClientPackageName).string(), 167 mClientPid); 168 result.append(" State: "); 169#define CASE_APPEND_ENUM(x) case x: result.append(#x "\n"); break; 170 171 const Parameters& p = mParameters.unsafeAccess(); 172 173 result.append(Parameters::getStateName(p.state)); 174 175 result.append("\n Current parameters:\n"); 176 result.appendFormat(" Preview size: %d x %d\n", 177 p.previewWidth, p.previewHeight); 178 result.appendFormat(" Preview FPS range: %d - %d\n", 179 p.previewFpsRange[0], p.previewFpsRange[1]); 180 result.appendFormat(" Preview HAL pixel format: 0x%x\n", 181 p.previewFormat); 182 result.appendFormat(" Preview transform: %x\n", 183 p.previewTransform); 184 result.appendFormat(" Picture size: %d x %d\n", 185 p.pictureWidth, p.pictureHeight); 186 result.appendFormat(" Jpeg thumbnail size: %d x %d\n", 187 p.jpegThumbSize[0], p.jpegThumbSize[1]); 188 result.appendFormat(" Jpeg quality: %d, thumbnail quality: %d\n", 189 p.jpegQuality, p.jpegThumbQuality); 190 result.appendFormat(" Jpeg rotation: %d\n", p.jpegRotation); 191 result.appendFormat(" GPS tags %s\n", 192 p.gpsEnabled ? "enabled" : "disabled"); 193 if (p.gpsEnabled) { 194 result.appendFormat(" GPS lat x long x alt: %f x %f x %f\n", 195 p.gpsCoordinates[0], p.gpsCoordinates[1], 196 p.gpsCoordinates[2]); 197 result.appendFormat(" GPS timestamp: %" PRId64 "\n", 198 p.gpsTimestamp); 199 result.appendFormat(" GPS processing method: %s\n", 200 p.gpsProcessingMethod.string()); 201 } 202 203 result.append(" White balance mode: "); 204 switch (p.wbMode) { 205 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_AUTO) 206 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_INCANDESCENT) 207 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_FLUORESCENT) 208 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_WARM_FLUORESCENT) 209 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_DAYLIGHT) 210 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_CLOUDY_DAYLIGHT) 211 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_TWILIGHT) 212 CASE_APPEND_ENUM(ANDROID_CONTROL_AWB_MODE_SHADE) 213 default: result.append("UNKNOWN\n"); 214 } 215 216 result.append(" Effect mode: "); 217 switch (p.effectMode) { 218 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_OFF) 219 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_MONO) 220 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_NEGATIVE) 221 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_SOLARIZE) 222 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_SEPIA) 223 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_POSTERIZE) 224 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_WHITEBOARD) 225 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_BLACKBOARD) 226 CASE_APPEND_ENUM(ANDROID_CONTROL_EFFECT_MODE_AQUA) 227 default: result.append("UNKNOWN\n"); 228 } 229 230 result.append(" Antibanding mode: "); 231 switch (p.antibandingMode) { 232 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_AUTO) 233 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_OFF) 234 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_50HZ) 235 CASE_APPEND_ENUM(ANDROID_CONTROL_AE_ANTIBANDING_MODE_60HZ) 236 default: result.append("UNKNOWN\n"); 237 } 238 239 result.append(" Scene mode: "); 240 switch (p.sceneMode) { 241 case ANDROID_CONTROL_SCENE_MODE_DISABLED: 242 result.append("AUTO\n"); break; 243 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_ACTION) 244 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_PORTRAIT) 245 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_LANDSCAPE) 246 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_NIGHT) 247 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_NIGHT_PORTRAIT) 248 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_THEATRE) 249 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_BEACH) 250 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SNOW) 251 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SUNSET) 252 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_STEADYPHOTO) 253 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_FIREWORKS) 254 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_SPORTS) 255 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_PARTY) 256 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_CANDLELIGHT) 257 CASE_APPEND_ENUM(ANDROID_CONTROL_SCENE_MODE_BARCODE) 258 default: result.append("UNKNOWN\n"); 259 } 260 261 result.append(" Flash mode: "); 262 switch (p.flashMode) { 263 CASE_APPEND_ENUM(Parameters::FLASH_MODE_OFF) 264 CASE_APPEND_ENUM(Parameters::FLASH_MODE_AUTO) 265 CASE_APPEND_ENUM(Parameters::FLASH_MODE_ON) 266 CASE_APPEND_ENUM(Parameters::FLASH_MODE_TORCH) 267 CASE_APPEND_ENUM(Parameters::FLASH_MODE_RED_EYE) 268 CASE_APPEND_ENUM(Parameters::FLASH_MODE_INVALID) 269 default: result.append("UNKNOWN\n"); 270 } 271 272 result.append(" Focus mode: "); 273 switch (p.focusMode) { 274 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_AUTO) 275 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_MACRO) 276 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_CONTINUOUS_VIDEO) 277 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_CONTINUOUS_PICTURE) 278 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_EDOF) 279 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_INFINITY) 280 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_FIXED) 281 CASE_APPEND_ENUM(Parameters::FOCUS_MODE_INVALID) 282 default: result.append("UNKNOWN\n"); 283 } 284 285 result.append(" Focus state: "); 286 switch (p.focusState) { 287 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_INACTIVE) 288 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN) 289 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED) 290 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED) 291 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_ACTIVE_SCAN) 292 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED) 293 CASE_APPEND_ENUM(ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED) 294 default: result.append("UNKNOWN\n"); 295 } 296 297 result.append(" Focusing areas:\n"); 298 for (size_t i = 0; i < p.focusingAreas.size(); i++) { 299 result.appendFormat(" [ (%d, %d, %d, %d), weight %d ]\n", 300 p.focusingAreas[i].left, 301 p.focusingAreas[i].top, 302 p.focusingAreas[i].right, 303 p.focusingAreas[i].bottom, 304 p.focusingAreas[i].weight); 305 } 306 307 result.appendFormat(" Exposure compensation index: %d\n", 308 p.exposureCompensation); 309 310 result.appendFormat(" AE lock %s, AWB lock %s\n", 311 p.autoExposureLock ? "enabled" : "disabled", 312 p.autoWhiteBalanceLock ? "enabled" : "disabled" ); 313 314 result.appendFormat(" Metering areas:\n"); 315 for (size_t i = 0; i < p.meteringAreas.size(); i++) { 316 result.appendFormat(" [ (%d, %d, %d, %d), weight %d ]\n", 317 p.meteringAreas[i].left, 318 p.meteringAreas[i].top, 319 p.meteringAreas[i].right, 320 p.meteringAreas[i].bottom, 321 p.meteringAreas[i].weight); 322 } 323 324 result.appendFormat(" Zoom index: %d\n", p.zoom); 325 result.appendFormat(" Video size: %d x %d\n", p.videoWidth, 326 p.videoHeight); 327 328 result.appendFormat(" Recording hint is %s\n", 329 p.recordingHint ? "set" : "not set"); 330 331 result.appendFormat(" Video stabilization is %s\n", 332 p.videoStabilization ? "enabled" : "disabled"); 333 334 result.appendFormat(" Selected still capture FPS range: %d - %d\n", 335 p.fastInfo.bestStillCaptureFpsRange[0], 336 p.fastInfo.bestStillCaptureFpsRange[1]); 337 338 result.append(" Current streams:\n"); 339 result.appendFormat(" Preview stream ID: %d\n", 340 getPreviewStreamId()); 341 result.appendFormat(" Capture stream ID: %d\n", 342 getCaptureStreamId()); 343 result.appendFormat(" Recording stream ID: %d\n", 344 getRecordingStreamId()); 345 346 result.append(" Quirks for this camera:\n"); 347 bool haveQuirk = false; 348 if (p.quirks.triggerAfWithAuto) { 349 result.appendFormat(" triggerAfWithAuto\n"); 350 haveQuirk = true; 351 } 352 if (p.quirks.useZslFormat) { 353 result.appendFormat(" useZslFormat\n"); 354 haveQuirk = true; 355 } 356 if (p.quirks.meteringCropRegion) { 357 result.appendFormat(" meteringCropRegion\n"); 358 haveQuirk = true; 359 } 360 if (p.quirks.partialResults) { 361 result.appendFormat(" usePartialResult\n"); 362 haveQuirk = true; 363 } 364 if (!haveQuirk) { 365 result.appendFormat(" none\n"); 366 } 367 368 write(fd, result.string(), result.size()); 369 370 mStreamingProcessor->dump(fd, args); 371 372 mCaptureSequencer->dump(fd, args); 373 374 mFrameProcessor->dump(fd, args); 375 376 mZslProcessor->dump(fd, args); 377 378 return dumpDevice(fd, args); 379#undef CASE_APPEND_ENUM 380} 381 382// ICamera interface 383 384void Camera2Client::disconnect() { 385 ATRACE_CALL(); 386 Mutex::Autolock icl(mBinderSerializationLock); 387 388 // Allow both client and the media server to disconnect at all times 389 int callingPid = getCallingPid(); 390 if (callingPid != mClientPid && callingPid != mServicePid) return; 391 392 if (mDevice == 0) return; 393 394 ALOGV("Camera %d: Shutting down", mCameraId); 395 396 /** 397 * disconnect() cannot call any methods that might need to promote a 398 * wp<Camera2Client>, since disconnect can be called from the destructor, at 399 * which point all such promotions will fail. 400 */ 401 402 stopPreviewL(); 403 404 { 405 SharedParameters::Lock l(mParameters); 406 if (l.mParameters.state == Parameters::DISCONNECTED) return; 407 l.mParameters.state = Parameters::DISCONNECTED; 408 } 409 410 mStreamingProcessor->requestExit(); 411 mFrameProcessor->requestExit(); 412 mCaptureSequencer->requestExit(); 413 mJpegProcessor->requestExit(); 414 mZslProcessorThread->requestExit(); 415 mCallbackProcessor->requestExit(); 416 417 ALOGV("Camera %d: Waiting for threads", mCameraId); 418 419 mStreamingProcessor->join(); 420 mFrameProcessor->join(); 421 mCaptureSequencer->join(); 422 mJpegProcessor->join(); 423 mZslProcessorThread->join(); 424 mCallbackProcessor->join(); 425 426 ALOGV("Camera %d: Deleting streams", mCameraId); 427 428 mStreamingProcessor->deletePreviewStream(); 429 mStreamingProcessor->deleteRecordingStream(); 430 mJpegProcessor->deleteStream(); 431 mCallbackProcessor->deleteStream(); 432 mZslProcessor->deleteStream(); 433 434 ALOGV("Camera %d: Disconnecting device", mCameraId); 435 436 mDevice->disconnect(); 437 438 mDevice.clear(); 439 440 CameraService::Client::disconnect(); 441} 442 443status_t Camera2Client::connect(const sp<ICameraClient>& client) { 444 ATRACE_CALL(); 445 ALOGV("%s: E", __FUNCTION__); 446 Mutex::Autolock icl(mBinderSerializationLock); 447 448 if (mClientPid != 0 && getCallingPid() != mClientPid) { 449 ALOGE("%s: Camera %d: Connection attempt from pid %d; " 450 "current locked to pid %d", __FUNCTION__, 451 mCameraId, getCallingPid(), mClientPid); 452 return BAD_VALUE; 453 } 454 455 mClientPid = getCallingPid(); 456 457 mRemoteCallback = client; 458 mSharedCameraCallbacks = client; 459 460 return OK; 461} 462 463status_t Camera2Client::lock() { 464 ATRACE_CALL(); 465 ALOGV("%s: E", __FUNCTION__); 466 Mutex::Autolock icl(mBinderSerializationLock); 467 ALOGV("%s: Camera %d: Lock call from pid %d; current client pid %d", 468 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 469 470 if (mClientPid == 0) { 471 mClientPid = getCallingPid(); 472 return OK; 473 } 474 475 if (mClientPid != getCallingPid()) { 476 ALOGE("%s: Camera %d: Lock call from pid %d; currently locked to pid %d", 477 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 478 return EBUSY; 479 } 480 481 return OK; 482} 483 484status_t Camera2Client::unlock() { 485 ATRACE_CALL(); 486 ALOGV("%s: E", __FUNCTION__); 487 Mutex::Autolock icl(mBinderSerializationLock); 488 ALOGV("%s: Camera %d: Unlock call from pid %d; current client pid %d", 489 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 490 491 if (mClientPid == getCallingPid()) { 492 SharedParameters::Lock l(mParameters); 493 if (l.mParameters.state == Parameters::RECORD || 494 l.mParameters.state == Parameters::VIDEO_SNAPSHOT) { 495 ALOGD("Not allowed to unlock camera during recording."); 496 return INVALID_OPERATION; 497 } 498 mClientPid = 0; 499 mRemoteCallback.clear(); 500 mSharedCameraCallbacks.clear(); 501 return OK; 502 } 503 504 ALOGE("%s: Camera %d: Unlock call from pid %d; currently locked to pid %d", 505 __FUNCTION__, mCameraId, getCallingPid(), mClientPid); 506 return EBUSY; 507} 508 509status_t Camera2Client::setPreviewTarget( 510 const sp<IGraphicBufferProducer>& bufferProducer) { 511 ATRACE_CALL(); 512 ALOGV("%s: E", __FUNCTION__); 513 Mutex::Autolock icl(mBinderSerializationLock); 514 status_t res; 515 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 516 517 sp<IBinder> binder; 518 sp<ANativeWindow> window; 519 if (bufferProducer != 0) { 520 binder = bufferProducer->asBinder(); 521 // Using controlledByApp flag to ensure that the buffer queue remains in 522 // async mode for the old camera API, where many applications depend 523 // on that behavior. 524 window = new Surface(bufferProducer, /*controlledByApp*/ true); 525 } 526 return setPreviewWindowL(binder, window); 527} 528 529status_t Camera2Client::setPreviewWindowL(const sp<IBinder>& binder, 530 sp<ANativeWindow> window) { 531 ATRACE_CALL(); 532 status_t res; 533 534 if (binder == mPreviewSurface) { 535 ALOGV("%s: Camera %d: New window is same as old window", 536 __FUNCTION__, mCameraId); 537 return NO_ERROR; 538 } 539 540 Parameters::State state; 541 { 542 SharedParameters::Lock l(mParameters); 543 state = l.mParameters.state; 544 } 545 switch (state) { 546 case Parameters::DISCONNECTED: 547 case Parameters::RECORD: 548 case Parameters::STILL_CAPTURE: 549 case Parameters::VIDEO_SNAPSHOT: 550 ALOGE("%s: Camera %d: Cannot set preview display while in state %s", 551 __FUNCTION__, mCameraId, 552 Parameters::getStateName(state)); 553 return INVALID_OPERATION; 554 case Parameters::STOPPED: 555 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 556 // OK 557 break; 558 case Parameters::PREVIEW: 559 // Already running preview - need to stop and create a new stream 560 res = stopStream(); 561 if (res != OK) { 562 ALOGE("%s: Unable to stop preview to swap windows: %s (%d)", 563 __FUNCTION__, strerror(-res), res); 564 return res; 565 } 566 state = Parameters::WAITING_FOR_PREVIEW_WINDOW; 567 break; 568 } 569 570 mPreviewSurface = binder; 571 res = mStreamingProcessor->setPreviewWindow(window); 572 if (res != OK) { 573 ALOGE("%s: Unable to set new preview window: %s (%d)", 574 __FUNCTION__, strerror(-res), res); 575 return res; 576 } 577 578 if (state == Parameters::WAITING_FOR_PREVIEW_WINDOW) { 579 SharedParameters::Lock l(mParameters); 580 l.mParameters.state = state; 581 return startPreviewL(l.mParameters, false); 582 } 583 584 return OK; 585} 586 587void Camera2Client::setPreviewCallbackFlag(int flag) { 588 ATRACE_CALL(); 589 ALOGV("%s: Camera %d: Flag 0x%x", __FUNCTION__, mCameraId, flag); 590 Mutex::Autolock icl(mBinderSerializationLock); 591 592 if ( checkPid(__FUNCTION__) != OK) return; 593 594 SharedParameters::Lock l(mParameters); 595 setPreviewCallbackFlagL(l.mParameters, flag); 596} 597 598void Camera2Client::setPreviewCallbackFlagL(Parameters ¶ms, int flag) { 599 status_t res = OK; 600 601 switch(params.state) { 602 case Parameters::STOPPED: 603 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 604 case Parameters::PREVIEW: 605 case Parameters::STILL_CAPTURE: 606 // OK 607 break; 608 default: 609 if (flag & CAMERA_FRAME_CALLBACK_FLAG_ENABLE_MASK) { 610 ALOGE("%s: Camera %d: Can't use preview callbacks " 611 "in state %d", __FUNCTION__, mCameraId, params.state); 612 return; 613 } 614 } 615 616 if (flag & CAMERA_FRAME_CALLBACK_FLAG_ONE_SHOT_MASK) { 617 ALOGV("%s: setting oneshot", __FUNCTION__); 618 params.previewCallbackOneShot = true; 619 } 620 if (params.previewCallbackFlags != (uint32_t)flag) { 621 622 if (params.previewCallbackSurface && flag != CAMERA_FRAME_CALLBACK_FLAG_NOOP) { 623 // Disable any existing preview callback window when enabling 624 // preview callback flags 625 res = mCallbackProcessor->setCallbackWindow(NULL); 626 if (res != OK) { 627 ALOGE("%s: Camera %d: Unable to clear preview callback surface:" 628 " %s (%d)", __FUNCTION__, mCameraId, strerror(-res), res); 629 return; 630 } 631 params.previewCallbackSurface = false; 632 } 633 634 params.previewCallbackFlags = flag; 635 636 if (params.state == Parameters::PREVIEW) { 637 res = startPreviewL(params, true); 638 if (res != OK) { 639 ALOGE("%s: Camera %d: Unable to refresh request in state %s", 640 __FUNCTION__, mCameraId, 641 Parameters::getStateName(params.state)); 642 } 643 } 644 } 645} 646 647status_t Camera2Client::setPreviewCallbackTarget( 648 const sp<IGraphicBufferProducer>& callbackProducer) { 649 ATRACE_CALL(); 650 ALOGV("%s: E", __FUNCTION__); 651 Mutex::Autolock icl(mBinderSerializationLock); 652 status_t res; 653 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 654 655 sp<ANativeWindow> window; 656 if (callbackProducer != 0) { 657 window = new Surface(callbackProducer); 658 } 659 660 res = mCallbackProcessor->setCallbackWindow(window); 661 if (res != OK) { 662 ALOGE("%s: Camera %d: Unable to set preview callback surface: %s (%d)", 663 __FUNCTION__, mCameraId, strerror(-res), res); 664 return res; 665 } 666 667 SharedParameters::Lock l(mParameters); 668 669 if (window != NULL) { 670 // Disable traditional callbacks when a valid callback target is given 671 l.mParameters.previewCallbackFlags = CAMERA_FRAME_CALLBACK_FLAG_NOOP; 672 l.mParameters.previewCallbackOneShot = false; 673 l.mParameters.previewCallbackSurface = true; 674 } else { 675 // Disable callback target if given a NULL interface. 676 l.mParameters.previewCallbackSurface = false; 677 } 678 679 switch(l.mParameters.state) { 680 case Parameters::PREVIEW: 681 res = startPreviewL(l.mParameters, true); 682 break; 683 case Parameters::RECORD: 684 case Parameters::VIDEO_SNAPSHOT: 685 res = startRecordingL(l.mParameters, true); 686 break; 687 default: 688 break; 689 } 690 if (res != OK) { 691 ALOGE("%s: Camera %d: Unable to refresh request in state %s", 692 __FUNCTION__, mCameraId, 693 Parameters::getStateName(l.mParameters.state)); 694 } 695 696 return OK; 697} 698 699 700status_t Camera2Client::startPreview() { 701 ATRACE_CALL(); 702 ALOGV("%s: E", __FUNCTION__); 703 Mutex::Autolock icl(mBinderSerializationLock); 704 status_t res; 705 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 706 SharedParameters::Lock l(mParameters); 707 return startPreviewL(l.mParameters, false); 708} 709 710status_t Camera2Client::startPreviewL(Parameters ¶ms, bool restart) { 711 ATRACE_CALL(); 712 status_t res; 713 714 ALOGV("%s: state == %d, restart = %d", __FUNCTION__, params.state, restart); 715 716 if ( (params.state == Parameters::PREVIEW || 717 params.state == Parameters::RECORD || 718 params.state == Parameters::VIDEO_SNAPSHOT) 719 && !restart) { 720 // Succeed attempt to re-enter a streaming state 721 ALOGI("%s: Camera %d: Preview already active, ignoring restart", 722 __FUNCTION__, mCameraId); 723 return OK; 724 } 725 if (params.state > Parameters::PREVIEW && !restart) { 726 ALOGE("%s: Can't start preview in state %s", 727 __FUNCTION__, 728 Parameters::getStateName(params.state)); 729 return INVALID_OPERATION; 730 } 731 732 if (!mStreamingProcessor->haveValidPreviewWindow()) { 733 params.state = Parameters::WAITING_FOR_PREVIEW_WINDOW; 734 return OK; 735 } 736 params.state = Parameters::STOPPED; 737 int lastPreviewStreamId = mStreamingProcessor->getPreviewStreamId(); 738 739 res = mStreamingProcessor->updatePreviewStream(params); 740 if (res != OK) { 741 ALOGE("%s: Camera %d: Unable to update preview stream: %s (%d)", 742 __FUNCTION__, mCameraId, strerror(-res), res); 743 return res; 744 } 745 746 bool previewStreamChanged = mStreamingProcessor->getPreviewStreamId() != lastPreviewStreamId; 747 748 // We could wait to create the JPEG output stream until first actual use 749 // (first takePicture call). However, this would substantially increase the 750 // first capture latency on HAL3 devices, and potentially on some HAL2 751 // devices. So create it unconditionally at preview start. As a drawback, 752 // this increases gralloc memory consumption for applications that don't 753 // ever take a picture. 754 // TODO: Find a better compromise, though this likely would involve HAL 755 // changes. 756 int lastJpegStreamId = mJpegProcessor->getStreamId(); 757 res = updateProcessorStream(mJpegProcessor, params); 758 if (res != OK) { 759 ALOGE("%s: Camera %d: Can't pre-configure still image " 760 "stream: %s (%d)", 761 __FUNCTION__, mCameraId, strerror(-res), res); 762 return res; 763 } 764 bool jpegStreamChanged = mJpegProcessor->getStreamId() != lastJpegStreamId; 765 766 Vector<int32_t> outputStreams; 767 bool callbacksEnabled = (params.previewCallbackFlags & 768 CAMERA_FRAME_CALLBACK_FLAG_ENABLE_MASK) || 769 params.previewCallbackSurface; 770 771 if (callbacksEnabled) { 772 // Can't have recording stream hanging around when enabling callbacks, 773 // since it exceeds the max stream count on some devices. 774 if (mStreamingProcessor->getRecordingStreamId() != NO_STREAM) { 775 ALOGV("%s: Camera %d: Clearing out recording stream before " 776 "creating callback stream", __FUNCTION__, mCameraId); 777 res = mStreamingProcessor->stopStream(); 778 if (res != OK) { 779 ALOGE("%s: Camera %d: Can't stop streaming to delete " 780 "recording stream", __FUNCTION__, mCameraId); 781 return res; 782 } 783 res = mStreamingProcessor->deleteRecordingStream(); 784 if (res != OK) { 785 ALOGE("%s: Camera %d: Unable to delete recording stream before " 786 "enabling callbacks: %s (%d)", __FUNCTION__, mCameraId, 787 strerror(-res), res); 788 return res; 789 } 790 } 791 792 res = mCallbackProcessor->updateStream(params); 793 if (res != OK) { 794 ALOGE("%s: Camera %d: Unable to update callback stream: %s (%d)", 795 __FUNCTION__, mCameraId, strerror(-res), res); 796 return res; 797 } 798 outputStreams.push(getCallbackStreamId()); 799 } else if (previewStreamChanged && mCallbackProcessor->getStreamId() != NO_STREAM) { 800 /** 801 * Delete the unused callback stream when preview stream is changed and 802 * preview is not enabled. Don't need stop preview stream as preview is in 803 * STOPPED state now. 804 */ 805 ALOGV("%s: Camera %d: Delete unused preview callback stream.", __FUNCTION__, mCameraId); 806 res = mCallbackProcessor->deleteStream(); 807 if (res != OK) { 808 ALOGE("%s: Camera %d: Unable to delete callback stream %s (%d)", 809 __FUNCTION__, mCameraId, strerror(-res), res); 810 return res; 811 } 812 } 813 if (params.zslMode && !params.recordingHint) { 814 res = updateProcessorStream(mZslProcessor, params); 815 if (res != OK) { 816 ALOGE("%s: Camera %d: Unable to update ZSL stream: %s (%d)", 817 __FUNCTION__, mCameraId, strerror(-res), res); 818 return res; 819 } 820 821 if (jpegStreamChanged) { 822 ALOGV("%s: Camera %d: Clear ZSL buffer queue when Jpeg size is changed", 823 __FUNCTION__, mCameraId); 824 mZslProcessor->clearZslQueue(); 825 } 826 outputStreams.push(getZslStreamId()); 827 } else { 828 mZslProcessor->deleteStream(); 829 } 830 831 outputStreams.push(getPreviewStreamId()); 832 833 if (!params.recordingHint) { 834 if (!restart) { 835 res = mStreamingProcessor->updatePreviewRequest(params); 836 if (res != OK) { 837 ALOGE("%s: Camera %d: Can't set up preview request: " 838 "%s (%d)", __FUNCTION__, mCameraId, 839 strerror(-res), res); 840 return res; 841 } 842 } 843 res = mStreamingProcessor->startStream(StreamingProcessor::PREVIEW, 844 outputStreams); 845 } else { 846 if (!restart) { 847 res = mStreamingProcessor->updateRecordingRequest(params); 848 if (res != OK) { 849 ALOGE("%s: Camera %d: Can't set up preview request with " 850 "record hint: %s (%d)", __FUNCTION__, mCameraId, 851 strerror(-res), res); 852 return res; 853 } 854 } 855 res = mStreamingProcessor->startStream(StreamingProcessor::RECORD, 856 outputStreams); 857 } 858 if (res != OK) { 859 ALOGE("%s: Camera %d: Unable to start streaming preview: %s (%d)", 860 __FUNCTION__, mCameraId, strerror(-res), res); 861 return res; 862 } 863 864 params.state = Parameters::PREVIEW; 865 return OK; 866} 867 868void Camera2Client::stopPreview() { 869 ATRACE_CALL(); 870 ALOGV("%s: E", __FUNCTION__); 871 Mutex::Autolock icl(mBinderSerializationLock); 872 status_t res; 873 if ( (res = checkPid(__FUNCTION__) ) != OK) return; 874 stopPreviewL(); 875} 876 877void Camera2Client::stopPreviewL() { 878 ATRACE_CALL(); 879 status_t res; 880 const nsecs_t kStopCaptureTimeout = 3000000000LL; // 3 seconds 881 Parameters::State state; 882 { 883 SharedParameters::Lock l(mParameters); 884 state = l.mParameters.state; 885 } 886 887 switch (state) { 888 case Parameters::DISCONNECTED: 889 // Nothing to do. 890 break; 891 case Parameters::STOPPED: 892 case Parameters::VIDEO_SNAPSHOT: 893 case Parameters::STILL_CAPTURE: 894 mCaptureSequencer->waitUntilIdle(kStopCaptureTimeout); 895 // no break 896 case Parameters::RECORD: 897 case Parameters::PREVIEW: 898 syncWithDevice(); 899 res = stopStream(); 900 if (res != OK) { 901 ALOGE("%s: Camera %d: Can't stop streaming: %s (%d)", 902 __FUNCTION__, mCameraId, strerror(-res), res); 903 } 904 res = mDevice->waitUntilDrained(); 905 if (res != OK) { 906 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 907 __FUNCTION__, mCameraId, strerror(-res), res); 908 } 909 // no break 910 case Parameters::WAITING_FOR_PREVIEW_WINDOW: { 911 SharedParameters::Lock l(mParameters); 912 l.mParameters.state = Parameters::STOPPED; 913 commandStopFaceDetectionL(l.mParameters); 914 break; 915 } 916 default: 917 ALOGE("%s: Camera %d: Unknown state %d", __FUNCTION__, mCameraId, 918 state); 919 } 920} 921 922bool Camera2Client::previewEnabled() { 923 ATRACE_CALL(); 924 Mutex::Autolock icl(mBinderSerializationLock); 925 status_t res; 926 if ( (res = checkPid(__FUNCTION__) ) != OK) return false; 927 928 SharedParameters::Lock l(mParameters); 929 return l.mParameters.state == Parameters::PREVIEW; 930} 931 932status_t Camera2Client::storeMetaDataInBuffers(bool enabled) { 933 ATRACE_CALL(); 934 Mutex::Autolock icl(mBinderSerializationLock); 935 status_t res; 936 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 937 938 SharedParameters::Lock l(mParameters); 939 switch (l.mParameters.state) { 940 case Parameters::RECORD: 941 case Parameters::VIDEO_SNAPSHOT: 942 ALOGE("%s: Camera %d: Can't be called in state %s", 943 __FUNCTION__, mCameraId, 944 Parameters::getStateName(l.mParameters.state)); 945 return INVALID_OPERATION; 946 default: 947 // OK 948 break; 949 } 950 951 l.mParameters.storeMetadataInBuffers = enabled; 952 953 return OK; 954} 955 956status_t Camera2Client::startRecording() { 957 ATRACE_CALL(); 958 ALOGV("%s: E", __FUNCTION__); 959 Mutex::Autolock icl(mBinderSerializationLock); 960 status_t res; 961 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 962 SharedParameters::Lock l(mParameters); 963 964 return startRecordingL(l.mParameters, false); 965} 966 967status_t Camera2Client::startRecordingL(Parameters ¶ms, bool restart) { 968 status_t res; 969 970 ALOGV("%s: state == %d, restart = %d", __FUNCTION__, params.state, restart); 971 972 switch (params.state) { 973 case Parameters::STOPPED: 974 res = startPreviewL(params, false); 975 if (res != OK) return res; 976 break; 977 case Parameters::PREVIEW: 978 // Ready to go 979 break; 980 case Parameters::RECORD: 981 case Parameters::VIDEO_SNAPSHOT: 982 // OK to call this when recording is already on, just skip unless 983 // we're looking to restart 984 if (!restart) return OK; 985 break; 986 default: 987 ALOGE("%s: Camera %d: Can't start recording in state %s", 988 __FUNCTION__, mCameraId, 989 Parameters::getStateName(params.state)); 990 return INVALID_OPERATION; 991 }; 992 993 if (!params.storeMetadataInBuffers) { 994 ALOGE("%s: Camera %d: Recording only supported in metadata mode, but " 995 "non-metadata recording mode requested!", __FUNCTION__, 996 mCameraId); 997 return INVALID_OPERATION; 998 } 999 1000 if (!restart) { 1001 mCameraService->playSound(CameraService::SOUND_RECORDING); 1002 mStreamingProcessor->updateRecordingRequest(params); 1003 if (res != OK) { 1004 ALOGE("%s: Camera %d: Unable to update recording request: %s (%d)", 1005 __FUNCTION__, mCameraId, strerror(-res), res); 1006 return res; 1007 } 1008 } 1009 1010 // Not all devices can support a preview callback stream and a recording 1011 // stream at the same time, so assume none of them can. 1012 if (mCallbackProcessor->getStreamId() != NO_STREAM) { 1013 ALOGV("%s: Camera %d: Clearing out callback stream before " 1014 "creating recording stream", __FUNCTION__, mCameraId); 1015 res = mStreamingProcessor->stopStream(); 1016 if (res != OK) { 1017 ALOGE("%s: Camera %d: Can't stop streaming to delete callback stream", 1018 __FUNCTION__, mCameraId); 1019 return res; 1020 } 1021 res = mCallbackProcessor->deleteStream(); 1022 if (res != OK) { 1023 ALOGE("%s: Camera %d: Unable to delete callback stream before " 1024 "record: %s (%d)", __FUNCTION__, mCameraId, 1025 strerror(-res), res); 1026 return res; 1027 } 1028 } 1029 // Disable callbacks if they're enabled; can't record and use callbacks, 1030 // and we can't fail record start without stagefright asserting. 1031 params.previewCallbackFlags = 0; 1032 1033 res = updateProcessorStream< 1034 StreamingProcessor, 1035 &StreamingProcessor::updateRecordingStream>(mStreamingProcessor, 1036 params); 1037 if (res != OK) { 1038 ALOGE("%s: Camera %d: Unable to update recording stream: %s (%d)", 1039 __FUNCTION__, mCameraId, strerror(-res), res); 1040 return res; 1041 } 1042 1043 Vector<int32_t> outputStreams; 1044 outputStreams.push(getPreviewStreamId()); 1045 outputStreams.push(getRecordingStreamId()); 1046 1047 res = mStreamingProcessor->startStream(StreamingProcessor::RECORD, 1048 outputStreams); 1049 if (res != OK) { 1050 ALOGE("%s: Camera %d: Unable to start recording stream: %s (%d)", 1051 __FUNCTION__, mCameraId, strerror(-res), res); 1052 return res; 1053 } 1054 1055 if (params.state < Parameters::RECORD) { 1056 params.state = Parameters::RECORD; 1057 } 1058 1059 return OK; 1060} 1061 1062void Camera2Client::stopRecording() { 1063 ATRACE_CALL(); 1064 ALOGV("%s: E", __FUNCTION__); 1065 Mutex::Autolock icl(mBinderSerializationLock); 1066 SharedParameters::Lock l(mParameters); 1067 1068 status_t res; 1069 if ( (res = checkPid(__FUNCTION__) ) != OK) return; 1070 1071 switch (l.mParameters.state) { 1072 case Parameters::RECORD: 1073 // OK to stop 1074 break; 1075 case Parameters::STOPPED: 1076 case Parameters::PREVIEW: 1077 case Parameters::STILL_CAPTURE: 1078 case Parameters::VIDEO_SNAPSHOT: 1079 default: 1080 ALOGE("%s: Camera %d: Can't stop recording in state %s", 1081 __FUNCTION__, mCameraId, 1082 Parameters::getStateName(l.mParameters.state)); 1083 return; 1084 }; 1085 1086 mCameraService->playSound(CameraService::SOUND_RECORDING); 1087 1088 res = startPreviewL(l.mParameters, true); 1089 if (res != OK) { 1090 ALOGE("%s: Camera %d: Unable to return to preview", 1091 __FUNCTION__, mCameraId); 1092 } 1093} 1094 1095bool Camera2Client::recordingEnabled() { 1096 ATRACE_CALL(); 1097 Mutex::Autolock icl(mBinderSerializationLock); 1098 1099 if ( checkPid(__FUNCTION__) != OK) return false; 1100 1101 return recordingEnabledL(); 1102} 1103 1104bool Camera2Client::recordingEnabledL() { 1105 ATRACE_CALL(); 1106 SharedParameters::Lock l(mParameters); 1107 1108 return (l.mParameters.state == Parameters::RECORD 1109 || l.mParameters.state == Parameters::VIDEO_SNAPSHOT); 1110} 1111 1112void Camera2Client::releaseRecordingFrame(const sp<IMemory>& mem) { 1113 ATRACE_CALL(); 1114 Mutex::Autolock icl(mBinderSerializationLock); 1115 if ( checkPid(__FUNCTION__) != OK) return; 1116 1117 mStreamingProcessor->releaseRecordingFrame(mem); 1118} 1119 1120status_t Camera2Client::autoFocus() { 1121 ATRACE_CALL(); 1122 Mutex::Autolock icl(mBinderSerializationLock); 1123 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1124 status_t res; 1125 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1126 1127 int triggerId; 1128 bool notifyImmediately = false; 1129 bool notifySuccess = false; 1130 { 1131 SharedParameters::Lock l(mParameters); 1132 if (l.mParameters.state < Parameters::PREVIEW) { 1133 return INVALID_OPERATION; 1134 } 1135 1136 /** 1137 * If the camera does not support auto-focus, it is a no-op and 1138 * onAutoFocus(boolean, Camera) callback will be called immediately 1139 * with a fake value of success set to true. 1140 * 1141 * Similarly, if focus mode is set to INFINITY, there's no reason to 1142 * bother the HAL. 1143 */ 1144 if (l.mParameters.focusMode == Parameters::FOCUS_MODE_FIXED || 1145 l.mParameters.focusMode == Parameters::FOCUS_MODE_INFINITY) { 1146 notifyImmediately = true; 1147 notifySuccess = true; 1148 } 1149 /** 1150 * If we're in CAF mode, and AF has already been locked, just fire back 1151 * the callback right away; the HAL would not send a notification since 1152 * no state change would happen on a AF trigger. 1153 */ 1154 if ( (l.mParameters.focusMode == Parameters::FOCUS_MODE_CONTINUOUS_PICTURE || 1155 l.mParameters.focusMode == Parameters::FOCUS_MODE_CONTINUOUS_VIDEO) && 1156 l.mParameters.focusState == ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED ) { 1157 notifyImmediately = true; 1158 notifySuccess = true; 1159 } 1160 /** 1161 * Send immediate notification back to client 1162 */ 1163 if (notifyImmediately) { 1164 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1165 if (l.mRemoteCallback != 0) { 1166 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS, 1167 notifySuccess ? 1 : 0, 0); 1168 } 1169 return OK; 1170 } 1171 /** 1172 * Handle quirk mode for AF in scene modes 1173 */ 1174 if (l.mParameters.quirks.triggerAfWithAuto && 1175 l.mParameters.sceneMode != ANDROID_CONTROL_SCENE_MODE_DISABLED && 1176 l.mParameters.focusMode != Parameters::FOCUS_MODE_AUTO && 1177 !l.mParameters.focusingAreas[0].isEmpty()) { 1178 ALOGV("%s: Quirk: Switching from focusMode %d to AUTO", 1179 __FUNCTION__, l.mParameters.focusMode); 1180 l.mParameters.shadowFocusMode = l.mParameters.focusMode; 1181 l.mParameters.focusMode = Parameters::FOCUS_MODE_AUTO; 1182 updateRequests(l.mParameters); 1183 } 1184 1185 l.mParameters.currentAfTriggerId = ++l.mParameters.afTriggerCounter; 1186 triggerId = l.mParameters.currentAfTriggerId; 1187 } 1188 ATRACE_ASYNC_BEGIN(kAutofocusLabel, triggerId); 1189 1190 syncWithDevice(); 1191 1192 mDevice->triggerAutofocus(triggerId); 1193 1194 return OK; 1195} 1196 1197status_t Camera2Client::cancelAutoFocus() { 1198 ATRACE_CALL(); 1199 Mutex::Autolock icl(mBinderSerializationLock); 1200 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1201 status_t res; 1202 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1203 1204 int triggerId; 1205 { 1206 SharedParameters::Lock l(mParameters); 1207 // Canceling does nothing in FIXED or INFINITY modes 1208 if (l.mParameters.focusMode == Parameters::FOCUS_MODE_FIXED || 1209 l.mParameters.focusMode == Parameters::FOCUS_MODE_INFINITY) { 1210 return OK; 1211 } 1212 1213 // An active AF trigger is canceled 1214 if (l.mParameters.afTriggerCounter == l.mParameters.currentAfTriggerId) { 1215 ATRACE_ASYNC_END(kAutofocusLabel, l.mParameters.currentAfTriggerId); 1216 } 1217 1218 triggerId = ++l.mParameters.afTriggerCounter; 1219 1220 // When using triggerAfWithAuto quirk, may need to reset focus mode to 1221 // the real state at this point. No need to cancel explicitly if 1222 // changing the AF mode. 1223 if (l.mParameters.shadowFocusMode != Parameters::FOCUS_MODE_INVALID) { 1224 ALOGV("%s: Quirk: Restoring focus mode to %d", __FUNCTION__, 1225 l.mParameters.shadowFocusMode); 1226 l.mParameters.focusMode = l.mParameters.shadowFocusMode; 1227 l.mParameters.shadowFocusMode = Parameters::FOCUS_MODE_INVALID; 1228 updateRequests(l.mParameters); 1229 1230 return OK; 1231 } 1232 } 1233 syncWithDevice(); 1234 1235 mDevice->triggerCancelAutofocus(triggerId); 1236 1237 return OK; 1238} 1239 1240status_t Camera2Client::takePicture(int msgType) { 1241 ATRACE_CALL(); 1242 Mutex::Autolock icl(mBinderSerializationLock); 1243 status_t res; 1244 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1245 1246 int takePictureCounter; 1247 { 1248 SharedParameters::Lock l(mParameters); 1249 switch (l.mParameters.state) { 1250 case Parameters::DISCONNECTED: 1251 case Parameters::STOPPED: 1252 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 1253 ALOGE("%s: Camera %d: Cannot take picture without preview enabled", 1254 __FUNCTION__, mCameraId); 1255 return INVALID_OPERATION; 1256 case Parameters::PREVIEW: 1257 // Good to go for takePicture 1258 res = commandStopFaceDetectionL(l.mParameters); 1259 if (res != OK) { 1260 ALOGE("%s: Camera %d: Unable to stop face detection for still capture", 1261 __FUNCTION__, mCameraId); 1262 return res; 1263 } 1264 l.mParameters.state = Parameters::STILL_CAPTURE; 1265 break; 1266 case Parameters::RECORD: 1267 // Good to go for video snapshot 1268 l.mParameters.state = Parameters::VIDEO_SNAPSHOT; 1269 break; 1270 case Parameters::STILL_CAPTURE: 1271 case Parameters::VIDEO_SNAPSHOT: 1272 ALOGE("%s: Camera %d: Already taking a picture", 1273 __FUNCTION__, mCameraId); 1274 return INVALID_OPERATION; 1275 } 1276 1277 ALOGV("%s: Camera %d: Starting picture capture", __FUNCTION__, mCameraId); 1278 1279 int lastJpegStreamId = mJpegProcessor->getStreamId(); 1280 res = updateProcessorStream(mJpegProcessor, l.mParameters); 1281 if (res != OK) { 1282 ALOGE("%s: Camera %d: Can't set up still image stream: %s (%d)", 1283 __FUNCTION__, mCameraId, strerror(-res), res); 1284 return res; 1285 } 1286 takePictureCounter = ++l.mParameters.takePictureCounter; 1287 1288 // Clear ZSL buffer queue when Jpeg size is changed. 1289 bool jpegStreamChanged = mJpegProcessor->getStreamId() != lastJpegStreamId; 1290 if (l.mParameters.zslMode && jpegStreamChanged) { 1291 ALOGV("%s: Camera %d: Clear ZSL buffer queue when Jpeg size is changed", 1292 __FUNCTION__, mCameraId); 1293 mZslProcessor->clearZslQueue(); 1294 } 1295 } 1296 1297 ATRACE_ASYNC_BEGIN(kTakepictureLabel, takePictureCounter); 1298 1299 // Need HAL to have correct settings before (possibly) triggering precapture 1300 syncWithDevice(); 1301 1302 res = mCaptureSequencer->startCapture(msgType); 1303 if (res != OK) { 1304 ALOGE("%s: Camera %d: Unable to start capture: %s (%d)", 1305 __FUNCTION__, mCameraId, strerror(-res), res); 1306 } 1307 1308 return res; 1309} 1310 1311status_t Camera2Client::setParameters(const String8& params) { 1312 ATRACE_CALL(); 1313 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1314 Mutex::Autolock icl(mBinderSerializationLock); 1315 status_t res; 1316 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1317 1318 SharedParameters::Lock l(mParameters); 1319 1320 res = l.mParameters.set(params); 1321 if (res != OK) return res; 1322 1323 res = updateRequests(l.mParameters); 1324 1325 return res; 1326} 1327 1328String8 Camera2Client::getParameters() const { 1329 ATRACE_CALL(); 1330 ALOGV("%s: Camera %d", __FUNCTION__, mCameraId); 1331 Mutex::Autolock icl(mBinderSerializationLock); 1332 if ( checkPid(__FUNCTION__) != OK) return String8(); 1333 1334 SharedParameters::ReadLock l(mParameters); 1335 1336 return l.mParameters.get(); 1337} 1338 1339status_t Camera2Client::sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) { 1340 ATRACE_CALL(); 1341 Mutex::Autolock icl(mBinderSerializationLock); 1342 status_t res; 1343 if ( (res = checkPid(__FUNCTION__) ) != OK) return res; 1344 1345 ALOGV("%s: Camera %d: Command %d (%d, %d)", __FUNCTION__, mCameraId, 1346 cmd, arg1, arg2); 1347 1348 switch (cmd) { 1349 case CAMERA_CMD_START_SMOOTH_ZOOM: 1350 return commandStartSmoothZoomL(); 1351 case CAMERA_CMD_STOP_SMOOTH_ZOOM: 1352 return commandStopSmoothZoomL(); 1353 case CAMERA_CMD_SET_DISPLAY_ORIENTATION: 1354 return commandSetDisplayOrientationL(arg1); 1355 case CAMERA_CMD_ENABLE_SHUTTER_SOUND: 1356 return commandEnableShutterSoundL(arg1 == 1); 1357 case CAMERA_CMD_PLAY_RECORDING_SOUND: 1358 return commandPlayRecordingSoundL(); 1359 case CAMERA_CMD_START_FACE_DETECTION: 1360 return commandStartFaceDetectionL(arg1); 1361 case CAMERA_CMD_STOP_FACE_DETECTION: { 1362 SharedParameters::Lock l(mParameters); 1363 return commandStopFaceDetectionL(l.mParameters); 1364 } 1365 case CAMERA_CMD_ENABLE_FOCUS_MOVE_MSG: 1366 return commandEnableFocusMoveMsgL(arg1 == 1); 1367 case CAMERA_CMD_PING: 1368 return commandPingL(); 1369 case CAMERA_CMD_SET_VIDEO_BUFFER_COUNT: 1370 return commandSetVideoBufferCountL(arg1); 1371 default: 1372 ALOGE("%s: Unknown command %d (arguments %d, %d)", 1373 __FUNCTION__, cmd, arg1, arg2); 1374 return BAD_VALUE; 1375 } 1376} 1377 1378status_t Camera2Client::commandStartSmoothZoomL() { 1379 ALOGE("%s: Unimplemented!", __FUNCTION__); 1380 return OK; 1381} 1382 1383status_t Camera2Client::commandStopSmoothZoomL() { 1384 ALOGE("%s: Unimplemented!", __FUNCTION__); 1385 return OK; 1386} 1387 1388status_t Camera2Client::commandSetDisplayOrientationL(int degrees) { 1389 int transform = Parameters::degToTransform(degrees, 1390 mCameraFacing == CAMERA_FACING_FRONT); 1391 if (transform == -1) { 1392 ALOGE("%s: Camera %d: Error setting %d as display orientation value", 1393 __FUNCTION__, mCameraId, degrees); 1394 return BAD_VALUE; 1395 } 1396 SharedParameters::Lock l(mParameters); 1397 if (transform != l.mParameters.previewTransform && 1398 getPreviewStreamId() != NO_STREAM) { 1399 mDevice->setStreamTransform(getPreviewStreamId(), transform); 1400 } 1401 l.mParameters.previewTransform = transform; 1402 return OK; 1403} 1404 1405status_t Camera2Client::commandEnableShutterSoundL(bool enable) { 1406 SharedParameters::Lock l(mParameters); 1407 if (enable) { 1408 l.mParameters.playShutterSound = true; 1409 return OK; 1410 } 1411 1412 // Disabling shutter sound may not be allowed. In that case only 1413 // allow the mediaserver process to disable the sound. 1414 char value[PROPERTY_VALUE_MAX]; 1415 property_get("ro.camera.sound.forced", value, "0"); 1416 if (strncmp(value, "0", 2) != 0) { 1417 // Disabling shutter sound is not allowed. Deny if the current 1418 // process is not mediaserver. 1419 if (getCallingPid() != getpid()) { 1420 ALOGE("Failed to disable shutter sound. Permission denied (pid %d)", 1421 getCallingPid()); 1422 return PERMISSION_DENIED; 1423 } 1424 } 1425 1426 l.mParameters.playShutterSound = false; 1427 return OK; 1428} 1429 1430status_t Camera2Client::commandPlayRecordingSoundL() { 1431 mCameraService->playSound(CameraService::SOUND_RECORDING); 1432 return OK; 1433} 1434 1435status_t Camera2Client::commandStartFaceDetectionL(int /*type*/) { 1436 ALOGV("%s: Camera %d: Starting face detection", 1437 __FUNCTION__, mCameraId); 1438 status_t res; 1439 SharedParameters::Lock l(mParameters); 1440 switch (l.mParameters.state) { 1441 case Parameters::DISCONNECTED: 1442 case Parameters::STOPPED: 1443 case Parameters::WAITING_FOR_PREVIEW_WINDOW: 1444 case Parameters::STILL_CAPTURE: 1445 ALOGE("%s: Camera %d: Cannot start face detection without preview active", 1446 __FUNCTION__, mCameraId); 1447 return INVALID_OPERATION; 1448 case Parameters::PREVIEW: 1449 case Parameters::RECORD: 1450 case Parameters::VIDEO_SNAPSHOT: 1451 // Good to go for starting face detect 1452 break; 1453 } 1454 // Ignoring type 1455 if (l.mParameters.fastInfo.bestFaceDetectMode == 1456 ANDROID_STATISTICS_FACE_DETECT_MODE_OFF) { 1457 ALOGE("%s: Camera %d: Face detection not supported", 1458 __FUNCTION__, mCameraId); 1459 return BAD_VALUE; 1460 } 1461 if (l.mParameters.enableFaceDetect) return OK; 1462 1463 l.mParameters.enableFaceDetect = true; 1464 1465 res = updateRequests(l.mParameters); 1466 1467 return res; 1468} 1469 1470status_t Camera2Client::commandStopFaceDetectionL(Parameters ¶ms) { 1471 status_t res = OK; 1472 ALOGV("%s: Camera %d: Stopping face detection", 1473 __FUNCTION__, mCameraId); 1474 1475 if (!params.enableFaceDetect) return OK; 1476 1477 params.enableFaceDetect = false; 1478 1479 if (params.state == Parameters::PREVIEW 1480 || params.state == Parameters::RECORD 1481 || params.state == Parameters::VIDEO_SNAPSHOT) { 1482 res = updateRequests(params); 1483 } 1484 1485 return res; 1486} 1487 1488status_t Camera2Client::commandEnableFocusMoveMsgL(bool enable) { 1489 SharedParameters::Lock l(mParameters); 1490 l.mParameters.enableFocusMoveMessages = enable; 1491 1492 return OK; 1493} 1494 1495status_t Camera2Client::commandPingL() { 1496 // Always ping back if access is proper and device is alive 1497 SharedParameters::Lock l(mParameters); 1498 if (l.mParameters.state != Parameters::DISCONNECTED) { 1499 return OK; 1500 } else { 1501 return NO_INIT; 1502 } 1503} 1504 1505status_t Camera2Client::commandSetVideoBufferCountL(size_t count) { 1506 if (recordingEnabledL()) { 1507 ALOGE("%s: Camera %d: Error setting video buffer count after " 1508 "recording was started", __FUNCTION__, mCameraId); 1509 return INVALID_OPERATION; 1510 } 1511 1512 return mStreamingProcessor->setRecordingBufferCount(count); 1513} 1514 1515/** Device-related methods */ 1516void Camera2Client::notifyAutoFocus(uint8_t newState, int triggerId) { 1517 ALOGV("%s: Autofocus state now %d, last trigger %d", 1518 __FUNCTION__, newState, triggerId); 1519 bool sendCompletedMessage = false; 1520 bool sendMovingMessage = false; 1521 1522 bool success = false; 1523 bool afInMotion = false; 1524 { 1525 SharedParameters::Lock l(mParameters); 1526 // Trace end of AF state 1527 char tmp[32]; 1528 if (l.mParameters.afStateCounter > 0) { 1529 camera_metadata_enum_snprint( 1530 ANDROID_CONTROL_AF_STATE, l.mParameters.focusState, tmp, sizeof(tmp)); 1531 ATRACE_ASYNC_END(tmp, l.mParameters.afStateCounter); 1532 } 1533 1534 // Update state 1535 l.mParameters.focusState = newState; 1536 l.mParameters.afStateCounter++; 1537 1538 // Trace start of AF state 1539 1540 camera_metadata_enum_snprint( 1541 ANDROID_CONTROL_AF_STATE, l.mParameters.focusState, tmp, sizeof(tmp)); 1542 ATRACE_ASYNC_BEGIN(tmp, l.mParameters.afStateCounter); 1543 1544 switch (l.mParameters.focusMode) { 1545 case Parameters::FOCUS_MODE_AUTO: 1546 case Parameters::FOCUS_MODE_MACRO: 1547 // Don't send notifications upstream if they're not for the current AF 1548 // trigger. For example, if cancel was called in between, or if we 1549 // already sent a notification about this AF call. 1550 if (triggerId != l.mParameters.currentAfTriggerId) break; 1551 switch (newState) { 1552 case ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED: 1553 success = true; 1554 // no break 1555 case ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED: 1556 sendCompletedMessage = true; 1557 l.mParameters.currentAfTriggerId = -1; 1558 break; 1559 case ANDROID_CONTROL_AF_STATE_ACTIVE_SCAN: 1560 // Just starting focusing, ignore 1561 break; 1562 case ANDROID_CONTROL_AF_STATE_INACTIVE: 1563 case ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN: 1564 case ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED: 1565 case ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED: 1566 default: 1567 // Unexpected in AUTO/MACRO mode 1568 ALOGE("%s: Unexpected AF state transition in AUTO/MACRO mode: %d", 1569 __FUNCTION__, newState); 1570 break; 1571 } 1572 break; 1573 case Parameters::FOCUS_MODE_CONTINUOUS_VIDEO: 1574 case Parameters::FOCUS_MODE_CONTINUOUS_PICTURE: 1575 switch (newState) { 1576 case ANDROID_CONTROL_AF_STATE_FOCUSED_LOCKED: 1577 success = true; 1578 // no break 1579 case ANDROID_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED: 1580 // Don't send notifications upstream if they're not for 1581 // the current AF trigger. For example, if cancel was 1582 // called in between, or if we already sent a 1583 // notification about this AF call. 1584 // Send both a 'AF done' callback and a 'AF move' callback 1585 if (triggerId != l.mParameters.currentAfTriggerId) break; 1586 sendCompletedMessage = true; 1587 afInMotion = false; 1588 if (l.mParameters.enableFocusMoveMessages && 1589 l.mParameters.afInMotion) { 1590 sendMovingMessage = true; 1591 } 1592 l.mParameters.currentAfTriggerId = -1; 1593 break; 1594 case ANDROID_CONTROL_AF_STATE_INACTIVE: 1595 // Cancel was called, or we switched state; care if 1596 // currently moving 1597 afInMotion = false; 1598 if (l.mParameters.enableFocusMoveMessages && 1599 l.mParameters.afInMotion) { 1600 sendMovingMessage = true; 1601 } 1602 break; 1603 case ANDROID_CONTROL_AF_STATE_PASSIVE_SCAN: 1604 // Start passive scan, inform upstream 1605 afInMotion = true; 1606 // no break 1607 case ANDROID_CONTROL_AF_STATE_PASSIVE_FOCUSED: 1608 case ANDROID_CONTROL_AF_STATE_PASSIVE_UNFOCUSED: 1609 // Stop passive scan, inform upstream 1610 if (l.mParameters.enableFocusMoveMessages) { 1611 sendMovingMessage = true; 1612 } 1613 break; 1614 } 1615 l.mParameters.afInMotion = afInMotion; 1616 break; 1617 case Parameters::FOCUS_MODE_EDOF: 1618 case Parameters::FOCUS_MODE_INFINITY: 1619 case Parameters::FOCUS_MODE_FIXED: 1620 default: 1621 if (newState != ANDROID_CONTROL_AF_STATE_INACTIVE) { 1622 ALOGE("%s: Unexpected AF state change %d " 1623 "(ID %d) in focus mode %d", 1624 __FUNCTION__, newState, triggerId, 1625 l.mParameters.focusMode); 1626 } 1627 } 1628 } 1629 if (sendMovingMessage) { 1630 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1631 if (l.mRemoteCallback != 0) { 1632 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS_MOVE, 1633 afInMotion ? 1 : 0, 0); 1634 } 1635 } 1636 if (sendCompletedMessage) { 1637 ATRACE_ASYNC_END(kAutofocusLabel, triggerId); 1638 SharedCameraCallbacks::Lock l(mSharedCameraCallbacks); 1639 if (l.mRemoteCallback != 0) { 1640 l.mRemoteCallback->notifyCallback(CAMERA_MSG_FOCUS, 1641 success ? 1 : 0, 0); 1642 } 1643 } 1644} 1645 1646void Camera2Client::notifyAutoExposure(uint8_t newState, int triggerId) { 1647 ALOGV("%s: Autoexposure state now %d, last trigger %d", 1648 __FUNCTION__, newState, triggerId); 1649 mCaptureSequencer->notifyAutoExposure(newState, triggerId); 1650} 1651 1652camera2::SharedParameters& Camera2Client::getParameters() { 1653 return mParameters; 1654} 1655 1656int Camera2Client::getPreviewStreamId() const { 1657 return mStreamingProcessor->getPreviewStreamId(); 1658} 1659 1660int Camera2Client::getCaptureStreamId() const { 1661 return mJpegProcessor->getStreamId(); 1662} 1663 1664int Camera2Client::getCallbackStreamId() const { 1665 return mCallbackProcessor->getStreamId(); 1666} 1667 1668int Camera2Client::getRecordingStreamId() const { 1669 return mStreamingProcessor->getRecordingStreamId(); 1670} 1671 1672int Camera2Client::getZslStreamId() const { 1673 return mZslProcessor->getStreamId(); 1674} 1675 1676status_t Camera2Client::registerFrameListener(int32_t minId, int32_t maxId, 1677 wp<camera2::FrameProcessor::FilteredListener> listener, bool sendPartials) { 1678 return mFrameProcessor->registerListener(minId, maxId, listener, sendPartials); 1679} 1680 1681status_t Camera2Client::removeFrameListener(int32_t minId, int32_t maxId, 1682 wp<camera2::FrameProcessor::FilteredListener> listener) { 1683 return mFrameProcessor->removeListener(minId, maxId, listener); 1684} 1685 1686status_t Camera2Client::stopStream() { 1687 return mStreamingProcessor->stopStream(); 1688} 1689 1690const int32_t Camera2Client::kPreviewRequestIdStart; 1691const int32_t Camera2Client::kPreviewRequestIdEnd; 1692const int32_t Camera2Client::kRecordingRequestIdStart; 1693const int32_t Camera2Client::kRecordingRequestIdEnd; 1694const int32_t Camera2Client::kCaptureRequestIdStart; 1695const int32_t Camera2Client::kCaptureRequestIdEnd; 1696 1697/** Utility methods */ 1698 1699status_t Camera2Client::updateRequests(Parameters ¶ms) { 1700 status_t res; 1701 1702 ALOGV("%s: Camera %d: state = %d", __FUNCTION__, getCameraId(), params.state); 1703 1704 res = mStreamingProcessor->incrementStreamingIds(); 1705 if (res != OK) { 1706 ALOGE("%s: Camera %d: Unable to increment request IDs: %s (%d)", 1707 __FUNCTION__, mCameraId, strerror(-res), res); 1708 return res; 1709 } 1710 1711 res = mStreamingProcessor->updatePreviewRequest(params); 1712 if (res != OK) { 1713 ALOGE("%s: Camera %d: Unable to update preview request: %s (%d)", 1714 __FUNCTION__, mCameraId, strerror(-res), res); 1715 return res; 1716 } 1717 res = mStreamingProcessor->updateRecordingRequest(params); 1718 if (res != OK) { 1719 ALOGE("%s: Camera %d: Unable to update recording request: %s (%d)", 1720 __FUNCTION__, mCameraId, strerror(-res), res); 1721 return res; 1722 } 1723 1724 if (params.state == Parameters::PREVIEW) { 1725 res = startPreviewL(params, true); 1726 if (res != OK) { 1727 ALOGE("%s: Camera %d: Error streaming new preview request: %s (%d)", 1728 __FUNCTION__, mCameraId, strerror(-res), res); 1729 return res; 1730 } 1731 } else if (params.state == Parameters::RECORD || 1732 params.state == Parameters::VIDEO_SNAPSHOT) { 1733 res = startRecordingL(params, true); 1734 if (res != OK) { 1735 ALOGE("%s: Camera %d: Error streaming new record request: %s (%d)", 1736 __FUNCTION__, mCameraId, strerror(-res), res); 1737 return res; 1738 } 1739 } 1740 return res; 1741} 1742 1743 1744size_t Camera2Client::calculateBufferSize(int width, int height, 1745 int format, int stride) { 1746 switch (format) { 1747 case HAL_PIXEL_FORMAT_YCbCr_422_SP: // NV16 1748 return width * height * 2; 1749 case HAL_PIXEL_FORMAT_YCrCb_420_SP: // NV21 1750 return width * height * 3 / 2; 1751 case HAL_PIXEL_FORMAT_YCbCr_422_I: // YUY2 1752 return width * height * 2; 1753 case HAL_PIXEL_FORMAT_YV12: { // YV12 1754 size_t ySize = stride * height; 1755 size_t uvStride = (stride / 2 + 0xF) & ~0xF; 1756 size_t uvSize = uvStride * height / 2; 1757 return ySize + uvSize * 2; 1758 } 1759 case HAL_PIXEL_FORMAT_RGB_565: 1760 return width * height * 2; 1761 case HAL_PIXEL_FORMAT_RGBA_8888: 1762 return width * height * 4; 1763 case HAL_PIXEL_FORMAT_RAW_SENSOR: 1764 return width * height * 2; 1765 default: 1766 ALOGE("%s: Unknown preview format: %x", 1767 __FUNCTION__, format); 1768 return 0; 1769 } 1770} 1771 1772status_t Camera2Client::syncWithDevice() { 1773 ATRACE_CALL(); 1774 const nsecs_t kMaxSyncTimeout = 500000000; // 500 ms 1775 status_t res; 1776 1777 int32_t activeRequestId = mStreamingProcessor->getActiveRequestId(); 1778 if (activeRequestId == 0) return OK; 1779 1780 res = mDevice->waitUntilRequestReceived(activeRequestId, kMaxSyncTimeout); 1781 if (res == TIMED_OUT) { 1782 ALOGE("%s: Camera %d: Timed out waiting sync with HAL", 1783 __FUNCTION__, mCameraId); 1784 } else if (res != OK) { 1785 ALOGE("%s: Camera %d: Error while waiting to sync with HAL", 1786 __FUNCTION__, mCameraId); 1787 } 1788 return res; 1789} 1790 1791template <typename ProcessorT> 1792status_t Camera2Client::updateProcessorStream(sp<ProcessorT> processor, 1793 camera2::Parameters params) { 1794 // No default template arguments until C++11, so we need this overload 1795 return updateProcessorStream<ProcessorT, &ProcessorT::updateStream>( 1796 processor, params); 1797} 1798 1799template <typename ProcessorT, 1800 status_t (ProcessorT::*updateStreamF)(const Parameters &)> 1801status_t Camera2Client::updateProcessorStream(sp<ProcessorT> processor, 1802 Parameters params) { 1803 status_t res; 1804 1805 // Get raw pointer since sp<T> doesn't have operator->* 1806 ProcessorT *processorPtr = processor.get(); 1807 res = (processorPtr->*updateStreamF)(params); 1808 1809 /** 1810 * Can't update the stream if it's busy? 1811 * 1812 * Then we need to stop the device (by temporarily clearing the request 1813 * queue) and then try again. Resume streaming once we're done. 1814 */ 1815 if (res == -EBUSY) { 1816 ALOGV("%s: Camera %d: Pausing to update stream", __FUNCTION__, 1817 mCameraId); 1818 res = mStreamingProcessor->togglePauseStream(/*pause*/true); 1819 if (res != OK) { 1820 ALOGE("%s: Camera %d: Can't pause streaming: %s (%d)", 1821 __FUNCTION__, mCameraId, strerror(-res), res); 1822 } 1823 1824 res = mDevice->waitUntilDrained(); 1825 if (res != OK) { 1826 ALOGE("%s: Camera %d: Waiting to stop streaming failed: %s (%d)", 1827 __FUNCTION__, mCameraId, strerror(-res), res); 1828 } 1829 1830 res = (processorPtr->*updateStreamF)(params); 1831 if (res != OK) { 1832 ALOGE("%s: Camera %d: Failed to update processing stream " 1833 " despite having halted streaming first: %s (%d)", 1834 __FUNCTION__, mCameraId, strerror(-res), res); 1835 } 1836 1837 res = mStreamingProcessor->togglePauseStream(/*pause*/false); 1838 if (res != OK) { 1839 ALOGE("%s: Camera %d: Can't unpause streaming: %s (%d)", 1840 __FUNCTION__, mCameraId, strerror(-res), res); 1841 } 1842 } 1843 1844 return res; 1845} 1846 1847const char* Camera2Client::kAutofocusLabel = "autofocus"; 1848const char* Camera2Client::kTakepictureLabel = "take_picture"; 1849 1850} // namespace android 1851