AudioFlinger.cpp revision 59bd0da8373af0e5159b799495fda51e03120ea4
1/* //device/include/server/AudioFlinger/AudioFlinger.cpp 2** 3** Copyright 2007, The Android Open Source Project 4** 5** Licensed under the Apache License, Version 2.0 (the "License"); 6** you may not use this file except in compliance with the License. 7** You may obtain a copy of the License at 8** 9** http://www.apache.org/licenses/LICENSE-2.0 10** 11** Unless required by applicable law or agreed to in writing, software 12** distributed under the License is distributed on an "AS IS" BASIS, 13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14** See the License for the specific language governing permissions and 15** limitations under the License. 16*/ 17 18 19#define LOG_TAG "AudioFlinger" 20//#define LOG_NDEBUG 0 21 22#include <math.h> 23#include <signal.h> 24#include <sys/time.h> 25#include <sys/resource.h> 26 27#include <binder/IPCThreadState.h> 28#include <binder/IServiceManager.h> 29#include <utils/Log.h> 30#include <binder/Parcel.h> 31#include <binder/IPCThreadState.h> 32#include <utils/String16.h> 33#include <utils/threads.h> 34#include <utils/Atomic.h> 35 36#include <cutils/bitops.h> 37#include <cutils/properties.h> 38 39#include <media/AudioTrack.h> 40#include <media/AudioRecord.h> 41#include <media/IMediaPlayerService.h> 42 43#include <private/media/AudioTrackShared.h> 44#include <private/media/AudioEffectShared.h> 45 46#include <system/audio.h> 47#include <hardware/audio.h> 48 49#include "AudioMixer.h" 50#include "AudioFlinger.h" 51 52#include <media/EffectsFactoryApi.h> 53#include <audio_effects/effect_visualizer.h> 54#include <audio_effects/effect_ns.h> 55#include <audio_effects/effect_aec.h> 56 57#include <cpustats/ThreadCpuUsage.h> 58#include <powermanager/PowerManager.h> 59// #define DEBUG_CPU_USAGE 10 // log statistics every n wall clock seconds 60 61// ---------------------------------------------------------------------------- 62 63 64namespace android { 65 66static const char* kDeadlockedString = "AudioFlinger may be deadlocked\n"; 67static const char* kHardwareLockedString = "Hardware lock is taken\n"; 68 69//static const nsecs_t kStandbyTimeInNsecs = seconds(3); 70static const float MAX_GAIN = 4096.0f; 71static const float MAX_GAIN_INT = 0x1000; 72 73// retry counts for buffer fill timeout 74// 50 * ~20msecs = 1 second 75static const int8_t kMaxTrackRetries = 50; 76static const int8_t kMaxTrackStartupRetries = 50; 77// allow less retry attempts on direct output thread. 78// direct outputs can be a scarce resource in audio hardware and should 79// be released as quickly as possible. 80static const int8_t kMaxTrackRetriesDirect = 2; 81 82static const int kDumpLockRetries = 50; 83static const int kDumpLockSleep = 20000; 84 85static const nsecs_t kWarningThrottle = seconds(5); 86 87// RecordThread loop sleep time upon application overrun or audio HAL read error 88static const int kRecordThreadSleepUs = 5000; 89 90// ---------------------------------------------------------------------------- 91 92static bool recordingAllowed() { 93 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 94 bool ok = checkCallingPermission(String16("android.permission.RECORD_AUDIO")); 95 if (!ok) LOGE("Request requires android.permission.RECORD_AUDIO"); 96 return ok; 97} 98 99static bool settingsAllowed() { 100 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 101 bool ok = checkCallingPermission(String16("android.permission.MODIFY_AUDIO_SETTINGS")); 102 if (!ok) LOGE("Request requires android.permission.MODIFY_AUDIO_SETTINGS"); 103 return ok; 104} 105 106// To collect the amplifier usage 107static void addBatteryData(uint32_t params) { 108 sp<IBinder> binder = 109 defaultServiceManager()->getService(String16("media.player")); 110 sp<IMediaPlayerService> service = interface_cast<IMediaPlayerService>(binder); 111 if (service.get() == NULL) { 112 LOGW("Cannot connect to the MediaPlayerService for battery tracking"); 113 return; 114 } 115 116 service->addBatteryData(params); 117} 118 119static int load_audio_interface(const char *if_name, const hw_module_t **mod, 120 audio_hw_device_t **dev) 121{ 122 int rc; 123 124 rc = hw_get_module_by_class(AUDIO_HARDWARE_MODULE_ID, if_name, mod); 125 if (rc) 126 goto out; 127 128 rc = audio_hw_device_open(*mod, dev); 129 LOGE_IF(rc, "couldn't open audio hw device in %s.%s (%s)", 130 AUDIO_HARDWARE_MODULE_ID, if_name, strerror(-rc)); 131 if (rc) 132 goto out; 133 134 return 0; 135 136out: 137 *mod = NULL; 138 *dev = NULL; 139 return rc; 140} 141 142static const char *audio_interfaces[] = { 143 "primary", 144 "a2dp", 145 "usb", 146}; 147#define ARRAY_SIZE(x) (sizeof((x))/sizeof(((x)[0]))) 148 149// ---------------------------------------------------------------------------- 150 151AudioFlinger::AudioFlinger() 152 : BnAudioFlinger(), 153 mPrimaryHardwareDev(0), mMasterVolume(1.0f), mMasterMute(false), mNextUniqueId(1), 154 mBtNrec(false) 155{ 156} 157 158void AudioFlinger::onFirstRef() 159{ 160 int rc = 0; 161 162 Mutex::Autolock _l(mLock); 163 164 /* TODO: move all this work into an Init() function */ 165 mHardwareStatus = AUDIO_HW_IDLE; 166 167 for (size_t i = 0; i < ARRAY_SIZE(audio_interfaces); i++) { 168 const hw_module_t *mod; 169 audio_hw_device_t *dev; 170 171 rc = load_audio_interface(audio_interfaces[i], &mod, &dev); 172 if (rc) 173 continue; 174 175 LOGI("Loaded %s audio interface from %s (%s)", audio_interfaces[i], 176 mod->name, mod->id); 177 mAudioHwDevs.push(dev); 178 179 if (!mPrimaryHardwareDev) { 180 mPrimaryHardwareDev = dev; 181 LOGI("Using '%s' (%s.%s) as the primary audio interface", 182 mod->name, mod->id, audio_interfaces[i]); 183 } 184 } 185 186 mHardwareStatus = AUDIO_HW_INIT; 187 188 if (!mPrimaryHardwareDev || mAudioHwDevs.size() == 0) { 189 LOGE("Primary audio interface not found"); 190 return; 191 } 192 193 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 194 audio_hw_device_t *dev = mAudioHwDevs[i]; 195 196 mHardwareStatus = AUDIO_HW_INIT; 197 rc = dev->init_check(dev); 198 if (rc == 0) { 199 AutoMutex lock(mHardwareLock); 200 201 mMode = AUDIO_MODE_NORMAL; 202 mHardwareStatus = AUDIO_HW_SET_MODE; 203 dev->set_mode(dev, mMode); 204 mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME; 205 dev->set_master_volume(dev, 1.0f); 206 mHardwareStatus = AUDIO_HW_IDLE; 207 } 208 } 209} 210 211status_t AudioFlinger::initCheck() const 212{ 213 Mutex::Autolock _l(mLock); 214 if (mPrimaryHardwareDev == NULL || mAudioHwDevs.size() == 0) 215 return NO_INIT; 216 return NO_ERROR; 217} 218 219AudioFlinger::~AudioFlinger() 220{ 221 int num_devs = mAudioHwDevs.size(); 222 223 while (!mRecordThreads.isEmpty()) { 224 // closeInput() will remove first entry from mRecordThreads 225 closeInput(mRecordThreads.keyAt(0)); 226 } 227 while (!mPlaybackThreads.isEmpty()) { 228 // closeOutput() will remove first entry from mPlaybackThreads 229 closeOutput(mPlaybackThreads.keyAt(0)); 230 } 231 232 for (int i = 0; i < num_devs; i++) { 233 audio_hw_device_t *dev = mAudioHwDevs[i]; 234 audio_hw_device_close(dev); 235 } 236 mAudioHwDevs.clear(); 237} 238 239audio_hw_device_t* AudioFlinger::findSuitableHwDev_l(uint32_t devices) 240{ 241 /* first matching HW device is returned */ 242 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 243 audio_hw_device_t *dev = mAudioHwDevs[i]; 244 if ((dev->get_supported_devices(dev) & devices) == devices) 245 return dev; 246 } 247 return NULL; 248} 249 250status_t AudioFlinger::dumpClients(int fd, const Vector<String16>& args) 251{ 252 const size_t SIZE = 256; 253 char buffer[SIZE]; 254 String8 result; 255 256 result.append("Clients:\n"); 257 for (size_t i = 0; i < mClients.size(); ++i) { 258 wp<Client> wClient = mClients.valueAt(i); 259 if (wClient != 0) { 260 sp<Client> client = wClient.promote(); 261 if (client != 0) { 262 snprintf(buffer, SIZE, " pid: %d\n", client->pid()); 263 result.append(buffer); 264 } 265 } 266 } 267 write(fd, result.string(), result.size()); 268 return NO_ERROR; 269} 270 271 272status_t AudioFlinger::dumpInternals(int fd, const Vector<String16>& args) 273{ 274 const size_t SIZE = 256; 275 char buffer[SIZE]; 276 String8 result; 277 int hardwareStatus = mHardwareStatus; 278 279 snprintf(buffer, SIZE, "Hardware status: %d\n", hardwareStatus); 280 result.append(buffer); 281 write(fd, result.string(), result.size()); 282 return NO_ERROR; 283} 284 285status_t AudioFlinger::dumpPermissionDenial(int fd, const Vector<String16>& args) 286{ 287 const size_t SIZE = 256; 288 char buffer[SIZE]; 289 String8 result; 290 snprintf(buffer, SIZE, "Permission Denial: " 291 "can't dump AudioFlinger from pid=%d, uid=%d\n", 292 IPCThreadState::self()->getCallingPid(), 293 IPCThreadState::self()->getCallingUid()); 294 result.append(buffer); 295 write(fd, result.string(), result.size()); 296 return NO_ERROR; 297} 298 299static bool tryLock(Mutex& mutex) 300{ 301 bool locked = false; 302 for (int i = 0; i < kDumpLockRetries; ++i) { 303 if (mutex.tryLock() == NO_ERROR) { 304 locked = true; 305 break; 306 } 307 usleep(kDumpLockSleep); 308 } 309 return locked; 310} 311 312status_t AudioFlinger::dump(int fd, const Vector<String16>& args) 313{ 314 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 315 dumpPermissionDenial(fd, args); 316 } else { 317 // get state of hardware lock 318 bool hardwareLocked = tryLock(mHardwareLock); 319 if (!hardwareLocked) { 320 String8 result(kHardwareLockedString); 321 write(fd, result.string(), result.size()); 322 } else { 323 mHardwareLock.unlock(); 324 } 325 326 bool locked = tryLock(mLock); 327 328 // failed to lock - AudioFlinger is probably deadlocked 329 if (!locked) { 330 String8 result(kDeadlockedString); 331 write(fd, result.string(), result.size()); 332 } 333 334 dumpClients(fd, args); 335 dumpInternals(fd, args); 336 337 // dump playback threads 338 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 339 mPlaybackThreads.valueAt(i)->dump(fd, args); 340 } 341 342 // dump record threads 343 for (size_t i = 0; i < mRecordThreads.size(); i++) { 344 mRecordThreads.valueAt(i)->dump(fd, args); 345 } 346 347 // dump all hardware devs 348 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 349 audio_hw_device_t *dev = mAudioHwDevs[i]; 350 dev->dump(dev, fd); 351 } 352 if (locked) mLock.unlock(); 353 } 354 return NO_ERROR; 355} 356 357 358// IAudioFlinger interface 359 360 361sp<IAudioTrack> AudioFlinger::createTrack( 362 pid_t pid, 363 int streamType, 364 uint32_t sampleRate, 365 uint32_t format, 366 uint32_t channelMask, 367 int frameCount, 368 uint32_t flags, 369 const sp<IMemory>& sharedBuffer, 370 int output, 371 int *sessionId, 372 status_t *status) 373{ 374 sp<PlaybackThread::Track> track; 375 sp<TrackHandle> trackHandle; 376 sp<Client> client; 377 wp<Client> wclient; 378 status_t lStatus; 379 int lSessionId; 380 381 if (streamType >= AUDIO_STREAM_CNT) { 382 LOGE("invalid stream type"); 383 lStatus = BAD_VALUE; 384 goto Exit; 385 } 386 387 { 388 Mutex::Autolock _l(mLock); 389 PlaybackThread *thread = checkPlaybackThread_l(output); 390 PlaybackThread *effectThread = NULL; 391 if (thread == NULL) { 392 LOGE("unknown output thread"); 393 lStatus = BAD_VALUE; 394 goto Exit; 395 } 396 397 wclient = mClients.valueFor(pid); 398 399 if (wclient != NULL) { 400 client = wclient.promote(); 401 } else { 402 client = new Client(this, pid); 403 mClients.add(pid, client); 404 } 405 406 LOGV("createTrack() sessionId: %d", (sessionId == NULL) ? -2 : *sessionId); 407 if (sessionId != NULL && *sessionId != AUDIO_SESSION_OUTPUT_MIX) { 408 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 409 sp<PlaybackThread> t = mPlaybackThreads.valueAt(i); 410 if (mPlaybackThreads.keyAt(i) != output) { 411 // prevent same audio session on different output threads 412 uint32_t sessions = t->hasAudioSession(*sessionId); 413 if (sessions & PlaybackThread::TRACK_SESSION) { 414 lStatus = BAD_VALUE; 415 goto Exit; 416 } 417 // check if an effect with same session ID is waiting for a track to be created 418 if (sessions & PlaybackThread::EFFECT_SESSION) { 419 effectThread = t.get(); 420 } 421 } 422 } 423 lSessionId = *sessionId; 424 } else { 425 // if no audio session id is provided, create one here 426 lSessionId = nextUniqueId(); 427 if (sessionId != NULL) { 428 *sessionId = lSessionId; 429 } 430 } 431 LOGV("createTrack() lSessionId: %d", lSessionId); 432 433 track = thread->createTrack_l(client, streamType, sampleRate, format, 434 channelMask, frameCount, sharedBuffer, lSessionId, &lStatus); 435 436 // move effect chain to this output thread if an effect on same session was waiting 437 // for a track to be created 438 if (lStatus == NO_ERROR && effectThread != NULL) { 439 Mutex::Autolock _dl(thread->mLock); 440 Mutex::Autolock _sl(effectThread->mLock); 441 moveEffectChain_l(lSessionId, effectThread, thread, true); 442 } 443 } 444 if (lStatus == NO_ERROR) { 445 trackHandle = new TrackHandle(track); 446 } else { 447 // remove local strong reference to Client before deleting the Track so that the Client 448 // destructor is called by the TrackBase destructor with mLock held 449 client.clear(); 450 track.clear(); 451 } 452 453Exit: 454 if(status) { 455 *status = lStatus; 456 } 457 return trackHandle; 458} 459 460uint32_t AudioFlinger::sampleRate(int output) const 461{ 462 Mutex::Autolock _l(mLock); 463 PlaybackThread *thread = checkPlaybackThread_l(output); 464 if (thread == NULL) { 465 LOGW("sampleRate() unknown thread %d", output); 466 return 0; 467 } 468 return thread->sampleRate(); 469} 470 471int AudioFlinger::channelCount(int output) const 472{ 473 Mutex::Autolock _l(mLock); 474 PlaybackThread *thread = checkPlaybackThread_l(output); 475 if (thread == NULL) { 476 LOGW("channelCount() unknown thread %d", output); 477 return 0; 478 } 479 return thread->channelCount(); 480} 481 482uint32_t AudioFlinger::format(int output) const 483{ 484 Mutex::Autolock _l(mLock); 485 PlaybackThread *thread = checkPlaybackThread_l(output); 486 if (thread == NULL) { 487 LOGW("format() unknown thread %d", output); 488 return 0; 489 } 490 return thread->format(); 491} 492 493size_t AudioFlinger::frameCount(int output) const 494{ 495 Mutex::Autolock _l(mLock); 496 PlaybackThread *thread = checkPlaybackThread_l(output); 497 if (thread == NULL) { 498 LOGW("frameCount() unknown thread %d", output); 499 return 0; 500 } 501 return thread->frameCount(); 502} 503 504uint32_t AudioFlinger::latency(int output) const 505{ 506 Mutex::Autolock _l(mLock); 507 PlaybackThread *thread = checkPlaybackThread_l(output); 508 if (thread == NULL) { 509 LOGW("latency() unknown thread %d", output); 510 return 0; 511 } 512 return thread->latency(); 513} 514 515status_t AudioFlinger::setMasterVolume(float value) 516{ 517 // check calling permissions 518 if (!settingsAllowed()) { 519 return PERMISSION_DENIED; 520 } 521 522 // when hw supports master volume, don't scale in sw mixer 523 { // scope for the lock 524 AutoMutex lock(mHardwareLock); 525 mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME; 526 if (mPrimaryHardwareDev->set_master_volume(mPrimaryHardwareDev, value) == NO_ERROR) { 527 value = 1.0f; 528 } 529 mHardwareStatus = AUDIO_HW_IDLE; 530 } 531 532 Mutex::Autolock _l(mLock); 533 mMasterVolume = value; 534 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 535 mPlaybackThreads.valueAt(i)->setMasterVolume(value); 536 537 return NO_ERROR; 538} 539 540status_t AudioFlinger::setMode(int mode) 541{ 542 status_t ret; 543 544 // check calling permissions 545 if (!settingsAllowed()) { 546 return PERMISSION_DENIED; 547 } 548 if ((mode < 0) || (mode >= AUDIO_MODE_CNT)) { 549 LOGW("Illegal value: setMode(%d)", mode); 550 return BAD_VALUE; 551 } 552 553 { // scope for the lock 554 AutoMutex lock(mHardwareLock); 555 mHardwareStatus = AUDIO_HW_SET_MODE; 556 ret = mPrimaryHardwareDev->set_mode(mPrimaryHardwareDev, mode); 557 mHardwareStatus = AUDIO_HW_IDLE; 558 } 559 560 if (NO_ERROR == ret) { 561 Mutex::Autolock _l(mLock); 562 mMode = mode; 563 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 564 mPlaybackThreads.valueAt(i)->setMode(mode); 565 } 566 567 return ret; 568} 569 570status_t AudioFlinger::setMicMute(bool state) 571{ 572 // check calling permissions 573 if (!settingsAllowed()) { 574 return PERMISSION_DENIED; 575 } 576 577 AutoMutex lock(mHardwareLock); 578 mHardwareStatus = AUDIO_HW_SET_MIC_MUTE; 579 status_t ret = mPrimaryHardwareDev->set_mic_mute(mPrimaryHardwareDev, state); 580 mHardwareStatus = AUDIO_HW_IDLE; 581 return ret; 582} 583 584bool AudioFlinger::getMicMute() const 585{ 586 bool state = AUDIO_MODE_INVALID; 587 mHardwareStatus = AUDIO_HW_GET_MIC_MUTE; 588 mPrimaryHardwareDev->get_mic_mute(mPrimaryHardwareDev, &state); 589 mHardwareStatus = AUDIO_HW_IDLE; 590 return state; 591} 592 593status_t AudioFlinger::setMasterMute(bool muted) 594{ 595 // check calling permissions 596 if (!settingsAllowed()) { 597 return PERMISSION_DENIED; 598 } 599 600 Mutex::Autolock _l(mLock); 601 mMasterMute = muted; 602 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 603 mPlaybackThreads.valueAt(i)->setMasterMute(muted); 604 605 return NO_ERROR; 606} 607 608float AudioFlinger::masterVolume() const 609{ 610 return mMasterVolume; 611} 612 613bool AudioFlinger::masterMute() const 614{ 615 return mMasterMute; 616} 617 618status_t AudioFlinger::setStreamVolume(int stream, float value, int output) 619{ 620 // check calling permissions 621 if (!settingsAllowed()) { 622 return PERMISSION_DENIED; 623 } 624 625 if (stream < 0 || uint32_t(stream) >= AUDIO_STREAM_CNT) { 626 return BAD_VALUE; 627 } 628 629 AutoMutex lock(mLock); 630 PlaybackThread *thread = NULL; 631 if (output) { 632 thread = checkPlaybackThread_l(output); 633 if (thread == NULL) { 634 return BAD_VALUE; 635 } 636 } 637 638 mStreamTypes[stream].volume = value; 639 640 if (thread == NULL) { 641 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) { 642 mPlaybackThreads.valueAt(i)->setStreamVolume(stream, value); 643 } 644 } else { 645 thread->setStreamVolume(stream, value); 646 } 647 648 return NO_ERROR; 649} 650 651status_t AudioFlinger::setStreamMute(int stream, bool muted) 652{ 653 // check calling permissions 654 if (!settingsAllowed()) { 655 return PERMISSION_DENIED; 656 } 657 658 if (stream < 0 || uint32_t(stream) >= AUDIO_STREAM_CNT || 659 uint32_t(stream) == AUDIO_STREAM_ENFORCED_AUDIBLE) { 660 return BAD_VALUE; 661 } 662 663 AutoMutex lock(mLock); 664 mStreamTypes[stream].mute = muted; 665 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 666 mPlaybackThreads.valueAt(i)->setStreamMute(stream, muted); 667 668 return NO_ERROR; 669} 670 671float AudioFlinger::streamVolume(int stream, int output) const 672{ 673 if (stream < 0 || uint32_t(stream) >= AUDIO_STREAM_CNT) { 674 return 0.0f; 675 } 676 677 AutoMutex lock(mLock); 678 float volume; 679 if (output) { 680 PlaybackThread *thread = checkPlaybackThread_l(output); 681 if (thread == NULL) { 682 return 0.0f; 683 } 684 volume = thread->streamVolume(stream); 685 } else { 686 volume = mStreamTypes[stream].volume; 687 } 688 689 return volume; 690} 691 692bool AudioFlinger::streamMute(int stream) const 693{ 694 if (stream < 0 || stream >= (int)AUDIO_STREAM_CNT) { 695 return true; 696 } 697 698 return mStreamTypes[stream].mute; 699} 700 701status_t AudioFlinger::setParameters(int ioHandle, const String8& keyValuePairs) 702{ 703 status_t result; 704 705 LOGV("setParameters(): io %d, keyvalue %s, tid %d, calling tid %d", 706 ioHandle, keyValuePairs.string(), gettid(), IPCThreadState::self()->getCallingPid()); 707 // check calling permissions 708 if (!settingsAllowed()) { 709 return PERMISSION_DENIED; 710 } 711 712 // ioHandle == 0 means the parameters are global to the audio hardware interface 713 if (ioHandle == 0) { 714 AutoMutex lock(mHardwareLock); 715 mHardwareStatus = AUDIO_SET_PARAMETER; 716 status_t final_result = NO_ERROR; 717 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 718 audio_hw_device_t *dev = mAudioHwDevs[i]; 719 result = dev->set_parameters(dev, keyValuePairs.string()); 720 final_result = result ?: final_result; 721 } 722 mHardwareStatus = AUDIO_HW_IDLE; 723 // disable AEC and NS if the device is a BT SCO headset supporting those pre processings 724 AudioParameter param = AudioParameter(keyValuePairs); 725 String8 value; 726 if (param.get(String8(AUDIO_PARAMETER_KEY_BT_NREC), value) == NO_ERROR) { 727 Mutex::Autolock _l(mLock); 728 bool btNrec = (value == AUDIO_PARAMETER_VALUE_ON); 729 if (mBtNrec != btNrec) { 730 for (size_t i = 0; i < mRecordThreads.size(); i++) { 731 sp<RecordThread> thread = mRecordThreads.valueAt(i); 732 RecordThread::RecordTrack *track = thread->track(); 733 if (track != NULL) { 734 audio_devices_t device = (audio_devices_t)( 735 thread->device() & AUDIO_DEVICE_IN_ALL); 736 bool suspend = audio_is_bluetooth_sco_device(device) && btNrec; 737 thread->setEffectSuspended(FX_IID_AEC, 738 suspend, 739 track->sessionId()); 740 thread->setEffectSuspended(FX_IID_NS, 741 suspend, 742 track->sessionId()); 743 } 744 } 745 mBtNrec = btNrec; 746 } 747 } 748 return final_result; 749 } 750 751 // hold a strong ref on thread in case closeOutput() or closeInput() is called 752 // and the thread is exited once the lock is released 753 sp<ThreadBase> thread; 754 { 755 Mutex::Autolock _l(mLock); 756 thread = checkPlaybackThread_l(ioHandle); 757 if (thread == NULL) { 758 thread = checkRecordThread_l(ioHandle); 759 } else if (thread.get() == primaryPlaybackThread_l()) { 760 // indicate output device change to all input threads for pre processing 761 AudioParameter param = AudioParameter(keyValuePairs); 762 int value; 763 if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) { 764 for (size_t i = 0; i < mRecordThreads.size(); i++) { 765 mRecordThreads.valueAt(i)->setParameters(keyValuePairs); 766 } 767 } 768 } 769 } 770 if (thread != NULL) { 771 result = thread->setParameters(keyValuePairs); 772 return result; 773 } 774 return BAD_VALUE; 775} 776 777String8 AudioFlinger::getParameters(int ioHandle, const String8& keys) 778{ 779// LOGV("getParameters() io %d, keys %s, tid %d, calling tid %d", 780// ioHandle, keys.string(), gettid(), IPCThreadState::self()->getCallingPid()); 781 782 if (ioHandle == 0) { 783 String8 out_s8; 784 785 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 786 audio_hw_device_t *dev = mAudioHwDevs[i]; 787 char *s = dev->get_parameters(dev, keys.string()); 788 out_s8 += String8(s); 789 free(s); 790 } 791 return out_s8; 792 } 793 794 Mutex::Autolock _l(mLock); 795 796 PlaybackThread *playbackThread = checkPlaybackThread_l(ioHandle); 797 if (playbackThread != NULL) { 798 return playbackThread->getParameters(keys); 799 } 800 RecordThread *recordThread = checkRecordThread_l(ioHandle); 801 if (recordThread != NULL) { 802 return recordThread->getParameters(keys); 803 } 804 return String8(""); 805} 806 807size_t AudioFlinger::getInputBufferSize(uint32_t sampleRate, int format, int channelCount) 808{ 809 return mPrimaryHardwareDev->get_input_buffer_size(mPrimaryHardwareDev, sampleRate, format, channelCount); 810} 811 812unsigned int AudioFlinger::getInputFramesLost(int ioHandle) 813{ 814 if (ioHandle == 0) { 815 return 0; 816 } 817 818 Mutex::Autolock _l(mLock); 819 820 RecordThread *recordThread = checkRecordThread_l(ioHandle); 821 if (recordThread != NULL) { 822 return recordThread->getInputFramesLost(); 823 } 824 return 0; 825} 826 827status_t AudioFlinger::setVoiceVolume(float value) 828{ 829 // check calling permissions 830 if (!settingsAllowed()) { 831 return PERMISSION_DENIED; 832 } 833 834 AutoMutex lock(mHardwareLock); 835 mHardwareStatus = AUDIO_SET_VOICE_VOLUME; 836 status_t ret = mPrimaryHardwareDev->set_voice_volume(mPrimaryHardwareDev, value); 837 mHardwareStatus = AUDIO_HW_IDLE; 838 839 return ret; 840} 841 842status_t AudioFlinger::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output) 843{ 844 status_t status; 845 846 Mutex::Autolock _l(mLock); 847 848 PlaybackThread *playbackThread = checkPlaybackThread_l(output); 849 if (playbackThread != NULL) { 850 return playbackThread->getRenderPosition(halFrames, dspFrames); 851 } 852 853 return BAD_VALUE; 854} 855 856void AudioFlinger::registerClient(const sp<IAudioFlingerClient>& client) 857{ 858 859 Mutex::Autolock _l(mLock); 860 861 int pid = IPCThreadState::self()->getCallingPid(); 862 if (mNotificationClients.indexOfKey(pid) < 0) { 863 sp<NotificationClient> notificationClient = new NotificationClient(this, 864 client, 865 pid); 866 LOGV("registerClient() client %p, pid %d", notificationClient.get(), pid); 867 868 mNotificationClients.add(pid, notificationClient); 869 870 sp<IBinder> binder = client->asBinder(); 871 binder->linkToDeath(notificationClient); 872 873 // the config change is always sent from playback or record threads to avoid deadlock 874 // with AudioSystem::gLock 875 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 876 mPlaybackThreads.valueAt(i)->sendConfigEvent(AudioSystem::OUTPUT_OPENED); 877 } 878 879 for (size_t i = 0; i < mRecordThreads.size(); i++) { 880 mRecordThreads.valueAt(i)->sendConfigEvent(AudioSystem::INPUT_OPENED); 881 } 882 } 883} 884 885void AudioFlinger::removeNotificationClient(pid_t pid) 886{ 887 Mutex::Autolock _l(mLock); 888 889 int index = mNotificationClients.indexOfKey(pid); 890 if (index >= 0) { 891 sp <NotificationClient> client = mNotificationClients.valueFor(pid); 892 LOGV("removeNotificationClient() %p, pid %d", client.get(), pid); 893 mNotificationClients.removeItem(pid); 894 } 895} 896 897// audioConfigChanged_l() must be called with AudioFlinger::mLock held 898void AudioFlinger::audioConfigChanged_l(int event, int ioHandle, void *param2) 899{ 900 size_t size = mNotificationClients.size(); 901 for (size_t i = 0; i < size; i++) { 902 mNotificationClients.valueAt(i)->client()->ioConfigChanged(event, ioHandle, param2); 903 } 904} 905 906// removeClient_l() must be called with AudioFlinger::mLock held 907void AudioFlinger::removeClient_l(pid_t pid) 908{ 909 LOGV("removeClient_l() pid %d, tid %d, calling tid %d", pid, gettid(), IPCThreadState::self()->getCallingPid()); 910 mClients.removeItem(pid); 911} 912 913 914// ---------------------------------------------------------------------------- 915 916AudioFlinger::ThreadBase::ThreadBase(const sp<AudioFlinger>& audioFlinger, int id, uint32_t device) 917 : Thread(false), 918 mAudioFlinger(audioFlinger), mSampleRate(0), mFrameCount(0), mChannelCount(0), 919 mFrameSize(1), mFormat(0), mStandby(false), mId(id), mExiting(false), 920 mDevice(device) 921{ 922 mDeathRecipient = new PMDeathRecipient(this); 923} 924 925AudioFlinger::ThreadBase::~ThreadBase() 926{ 927 mParamCond.broadcast(); 928 mNewParameters.clear(); 929 // do not lock the mutex in destructor 930 releaseWakeLock_l(); 931} 932 933void AudioFlinger::ThreadBase::exit() 934{ 935 // keep a strong ref on ourself so that we wont get 936 // destroyed in the middle of requestExitAndWait() 937 sp <ThreadBase> strongMe = this; 938 939 LOGV("ThreadBase::exit"); 940 { 941 AutoMutex lock(&mLock); 942 mExiting = true; 943 requestExit(); 944 mWaitWorkCV.signal(); 945 } 946 requestExitAndWait(); 947} 948 949uint32_t AudioFlinger::ThreadBase::sampleRate() const 950{ 951 return mSampleRate; 952} 953 954int AudioFlinger::ThreadBase::channelCount() const 955{ 956 return (int)mChannelCount; 957} 958 959uint32_t AudioFlinger::ThreadBase::format() const 960{ 961 return mFormat; 962} 963 964size_t AudioFlinger::ThreadBase::frameCount() const 965{ 966 return mFrameCount; 967} 968 969status_t AudioFlinger::ThreadBase::setParameters(const String8& keyValuePairs) 970{ 971 status_t status; 972 973 LOGV("ThreadBase::setParameters() %s", keyValuePairs.string()); 974 Mutex::Autolock _l(mLock); 975 976 mNewParameters.add(keyValuePairs); 977 mWaitWorkCV.signal(); 978 // wait condition with timeout in case the thread loop has exited 979 // before the request could be processed 980 if (mParamCond.waitRelative(mLock, seconds(2)) == NO_ERROR) { 981 status = mParamStatus; 982 mWaitWorkCV.signal(); 983 } else { 984 status = TIMED_OUT; 985 } 986 return status; 987} 988 989void AudioFlinger::ThreadBase::sendConfigEvent(int event, int param) 990{ 991 Mutex::Autolock _l(mLock); 992 sendConfigEvent_l(event, param); 993} 994 995// sendConfigEvent_l() must be called with ThreadBase::mLock held 996void AudioFlinger::ThreadBase::sendConfigEvent_l(int event, int param) 997{ 998 ConfigEvent *configEvent = new ConfigEvent(); 999 configEvent->mEvent = event; 1000 configEvent->mParam = param; 1001 mConfigEvents.add(configEvent); 1002 LOGV("sendConfigEvent() num events %d event %d, param %d", mConfigEvents.size(), event, param); 1003 mWaitWorkCV.signal(); 1004} 1005 1006void AudioFlinger::ThreadBase::processConfigEvents() 1007{ 1008 mLock.lock(); 1009 while(!mConfigEvents.isEmpty()) { 1010 LOGV("processConfigEvents() remaining events %d", mConfigEvents.size()); 1011 ConfigEvent *configEvent = mConfigEvents[0]; 1012 mConfigEvents.removeAt(0); 1013 // release mLock before locking AudioFlinger mLock: lock order is always 1014 // AudioFlinger then ThreadBase to avoid cross deadlock 1015 mLock.unlock(); 1016 mAudioFlinger->mLock.lock(); 1017 audioConfigChanged_l(configEvent->mEvent, configEvent->mParam); 1018 mAudioFlinger->mLock.unlock(); 1019 delete configEvent; 1020 mLock.lock(); 1021 } 1022 mLock.unlock(); 1023} 1024 1025status_t AudioFlinger::ThreadBase::dumpBase(int fd, const Vector<String16>& args) 1026{ 1027 const size_t SIZE = 256; 1028 char buffer[SIZE]; 1029 String8 result; 1030 1031 bool locked = tryLock(mLock); 1032 if (!locked) { 1033 snprintf(buffer, SIZE, "thread %p maybe dead locked\n", this); 1034 write(fd, buffer, strlen(buffer)); 1035 } 1036 1037 snprintf(buffer, SIZE, "standby: %d\n", mStandby); 1038 result.append(buffer); 1039 snprintf(buffer, SIZE, "Sample rate: %d\n", mSampleRate); 1040 result.append(buffer); 1041 snprintf(buffer, SIZE, "Frame count: %d\n", mFrameCount); 1042 result.append(buffer); 1043 snprintf(buffer, SIZE, "Channel Count: %d\n", mChannelCount); 1044 result.append(buffer); 1045 snprintf(buffer, SIZE, "Channel Mask: 0x%08x\n", mChannelMask); 1046 result.append(buffer); 1047 snprintf(buffer, SIZE, "Format: %d\n", mFormat); 1048 result.append(buffer); 1049 snprintf(buffer, SIZE, "Frame size: %d\n", mFrameSize); 1050 result.append(buffer); 1051 1052 snprintf(buffer, SIZE, "\nPending setParameters commands: \n"); 1053 result.append(buffer); 1054 result.append(" Index Command"); 1055 for (size_t i = 0; i < mNewParameters.size(); ++i) { 1056 snprintf(buffer, SIZE, "\n %02d ", i); 1057 result.append(buffer); 1058 result.append(mNewParameters[i]); 1059 } 1060 1061 snprintf(buffer, SIZE, "\n\nPending config events: \n"); 1062 result.append(buffer); 1063 snprintf(buffer, SIZE, " Index event param\n"); 1064 result.append(buffer); 1065 for (size_t i = 0; i < mConfigEvents.size(); i++) { 1066 snprintf(buffer, SIZE, " %02d %02d %d\n", i, mConfigEvents[i]->mEvent, mConfigEvents[i]->mParam); 1067 result.append(buffer); 1068 } 1069 result.append("\n"); 1070 1071 write(fd, result.string(), result.size()); 1072 1073 if (locked) { 1074 mLock.unlock(); 1075 } 1076 return NO_ERROR; 1077} 1078 1079status_t AudioFlinger::ThreadBase::dumpEffectChains(int fd, const Vector<String16>& args) 1080{ 1081 const size_t SIZE = 256; 1082 char buffer[SIZE]; 1083 String8 result; 1084 1085 snprintf(buffer, SIZE, "\n- %d Effect Chains:\n", mEffectChains.size()); 1086 write(fd, buffer, strlen(buffer)); 1087 1088 for (size_t i = 0; i < mEffectChains.size(); ++i) { 1089 sp<EffectChain> chain = mEffectChains[i]; 1090 if (chain != 0) { 1091 chain->dump(fd, args); 1092 } 1093 } 1094 return NO_ERROR; 1095} 1096 1097void AudioFlinger::ThreadBase::acquireWakeLock() 1098{ 1099 Mutex::Autolock _l(mLock); 1100 acquireWakeLock_l(); 1101} 1102 1103void AudioFlinger::ThreadBase::acquireWakeLock_l() 1104{ 1105 if (mPowerManager == 0) { 1106 // use checkService() to avoid blocking if power service is not up yet 1107 sp<IBinder> binder = 1108 defaultServiceManager()->checkService(String16("power")); 1109 if (binder == 0) { 1110 LOGW("Thread %s cannot connect to the power manager service", mName); 1111 } else { 1112 mPowerManager = interface_cast<IPowerManager>(binder); 1113 binder->linkToDeath(mDeathRecipient); 1114 } 1115 } 1116 if (mPowerManager != 0) { 1117 sp<IBinder> binder = new BBinder(); 1118 status_t status = mPowerManager->acquireWakeLock(POWERMANAGER_PARTIAL_WAKE_LOCK, 1119 binder, 1120 String16(mName)); 1121 if (status == NO_ERROR) { 1122 mWakeLockToken = binder; 1123 } 1124 LOGV("acquireWakeLock_l() %s status %d", mName, status); 1125 } 1126} 1127 1128void AudioFlinger::ThreadBase::releaseWakeLock() 1129{ 1130 Mutex::Autolock _l(mLock); 1131 releaseWakeLock_l(); 1132} 1133 1134void AudioFlinger::ThreadBase::releaseWakeLock_l() 1135{ 1136 if (mWakeLockToken != 0) { 1137 LOGV("releaseWakeLock_l() %s", mName); 1138 if (mPowerManager != 0) { 1139 mPowerManager->releaseWakeLock(mWakeLockToken, 0); 1140 } 1141 mWakeLockToken.clear(); 1142 } 1143} 1144 1145void AudioFlinger::ThreadBase::clearPowerManager() 1146{ 1147 Mutex::Autolock _l(mLock); 1148 releaseWakeLock_l(); 1149 mPowerManager.clear(); 1150} 1151 1152void AudioFlinger::ThreadBase::PMDeathRecipient::binderDied(const wp<IBinder>& who) 1153{ 1154 sp<ThreadBase> thread = mThread.promote(); 1155 if (thread != 0) { 1156 thread->clearPowerManager(); 1157 } 1158 LOGW("power manager service died !!!"); 1159} 1160 1161void AudioFlinger::ThreadBase::setEffectSuspended( 1162 const effect_uuid_t *type, bool suspend, int sessionId) 1163{ 1164 Mutex::Autolock _l(mLock); 1165 setEffectSuspended_l(type, suspend, sessionId); 1166} 1167 1168void AudioFlinger::ThreadBase::setEffectSuspended_l( 1169 const effect_uuid_t *type, bool suspend, int sessionId) 1170{ 1171 sp<EffectChain> chain; 1172 chain = getEffectChain_l(sessionId); 1173 if (chain != 0) { 1174 if (type != NULL) { 1175 chain->setEffectSuspended_l(type, suspend); 1176 } else { 1177 chain->setEffectSuspendedAll_l(suspend); 1178 } 1179 } 1180 1181 updateSuspendedSessions_l(type, suspend, sessionId); 1182} 1183 1184void AudioFlinger::ThreadBase::checkSuspendOnAddEffectChain_l(const sp<EffectChain>& chain) 1185{ 1186 int index = mSuspendedSessions.indexOfKey(chain->sessionId()); 1187 if (index < 0) { 1188 return; 1189 } 1190 1191 KeyedVector <int, sp<SuspendedSessionDesc> > sessionEffects = 1192 mSuspendedSessions.editValueAt(index); 1193 1194 for (size_t i = 0; i < sessionEffects.size(); i++) { 1195 sp <SuspendedSessionDesc> desc = sessionEffects.valueAt(i); 1196 for (int j = 0; j < desc->mRefCount; j++) { 1197 if (sessionEffects.keyAt(i) == EffectChain::kKeyForSuspendAll) { 1198 chain->setEffectSuspendedAll_l(true); 1199 } else { 1200 LOGV("checkSuspendOnAddEffectChain_l() suspending effects %08x", 1201 desc->mType.timeLow); 1202 chain->setEffectSuspended_l(&desc->mType, true); 1203 } 1204 } 1205 } 1206} 1207 1208void AudioFlinger::ThreadBase::updateSuspendedSessionsOnRemoveEffectChain_l( 1209 const sp<EffectChain>& chain) 1210{ 1211 int index = mSuspendedSessions.indexOfKey(chain->sessionId()); 1212 if (index < 0) { 1213 return; 1214 } 1215 LOGV("updateSuspendedSessionsOnRemoveEffectChain_l() removed suspended session %d", 1216 chain->sessionId()); 1217 mSuspendedSessions.removeItemsAt(index); 1218} 1219 1220void AudioFlinger::ThreadBase::updateSuspendedSessions_l(const effect_uuid_t *type, 1221 bool suspend, 1222 int sessionId) 1223{ 1224 int index = mSuspendedSessions.indexOfKey(sessionId); 1225 1226 KeyedVector <int, sp<SuspendedSessionDesc> > sessionEffects; 1227 1228 if (suspend) { 1229 if (index >= 0) { 1230 sessionEffects = mSuspendedSessions.editValueAt(index); 1231 } else { 1232 mSuspendedSessions.add(sessionId, sessionEffects); 1233 } 1234 } else { 1235 if (index < 0) { 1236 return; 1237 } 1238 sessionEffects = mSuspendedSessions.editValueAt(index); 1239 } 1240 1241 1242 int key = EffectChain::kKeyForSuspendAll; 1243 if (type != NULL) { 1244 key = type->timeLow; 1245 } 1246 index = sessionEffects.indexOfKey(key); 1247 1248 sp <SuspendedSessionDesc> desc; 1249 if (suspend) { 1250 if (index >= 0) { 1251 desc = sessionEffects.valueAt(index); 1252 } else { 1253 desc = new SuspendedSessionDesc(); 1254 if (type != NULL) { 1255 memcpy(&desc->mType, type, sizeof(effect_uuid_t)); 1256 } 1257 sessionEffects.add(key, desc); 1258 LOGV("updateSuspendedSessions_l() suspend adding effect %08x", key); 1259 } 1260 desc->mRefCount++; 1261 } else { 1262 if (index < 0) { 1263 return; 1264 } 1265 desc = sessionEffects.valueAt(index); 1266 if (--desc->mRefCount == 0) { 1267 LOGV("updateSuspendedSessions_l() restore removing effect %08x", key); 1268 sessionEffects.removeItemsAt(index); 1269 if (sessionEffects.isEmpty()) { 1270 LOGV("updateSuspendedSessions_l() restore removing session %d", 1271 sessionId); 1272 mSuspendedSessions.removeItem(sessionId); 1273 } 1274 } 1275 } 1276 if (!sessionEffects.isEmpty()) { 1277 mSuspendedSessions.replaceValueFor(sessionId, sessionEffects); 1278 } 1279} 1280 1281void AudioFlinger::ThreadBase::checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, 1282 bool enabled, 1283 int sessionId) 1284{ 1285 Mutex::Autolock _l(mLock); 1286 1287 // TODO: implement PlaybackThread or RecordThread specific behavior here 1288 1289 sp<EffectChain> chain = getEffectChain_l(sessionId); 1290 if (chain != 0) { 1291 chain->checkSuspendOnEffectEnabled(effect, enabled); 1292 } 1293} 1294 1295// ---------------------------------------------------------------------------- 1296 1297AudioFlinger::PlaybackThread::PlaybackThread(const sp<AudioFlinger>& audioFlinger, 1298 AudioStreamOut* output, 1299 int id, 1300 uint32_t device) 1301 : ThreadBase(audioFlinger, id, device), 1302 mMixBuffer(0), mSuspended(0), mBytesWritten(0), mOutput(output), 1303 mLastWriteTime(0), mNumWrites(0), mNumDelayedWrites(0), mInWrite(false) 1304{ 1305 snprintf(mName, kNameLength, "AudioOut_%d", id); 1306 1307 readOutputParameters(); 1308 1309 mMasterVolume = mAudioFlinger->masterVolume(); 1310 mMasterMute = mAudioFlinger->masterMute(); 1311 1312 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 1313 mStreamTypes[stream].volume = mAudioFlinger->streamVolumeInternal(stream); 1314 mStreamTypes[stream].mute = mAudioFlinger->streamMute(stream); 1315 } 1316} 1317 1318AudioFlinger::PlaybackThread::~PlaybackThread() 1319{ 1320 delete [] mMixBuffer; 1321} 1322 1323status_t AudioFlinger::PlaybackThread::dump(int fd, const Vector<String16>& args) 1324{ 1325 dumpInternals(fd, args); 1326 dumpTracks(fd, args); 1327 dumpEffectChains(fd, args); 1328 return NO_ERROR; 1329} 1330 1331status_t AudioFlinger::PlaybackThread::dumpTracks(int fd, const Vector<String16>& args) 1332{ 1333 const size_t SIZE = 256; 1334 char buffer[SIZE]; 1335 String8 result; 1336 1337 snprintf(buffer, SIZE, "Output thread %p tracks\n", this); 1338 result.append(buffer); 1339 result.append(" Name Clien Typ Fmt Chn mask Session Buf S M F SRate LeftV RighV Serv User Main buf Aux Buf\n"); 1340 for (size_t i = 0; i < mTracks.size(); ++i) { 1341 sp<Track> track = mTracks[i]; 1342 if (track != 0) { 1343 track->dump(buffer, SIZE); 1344 result.append(buffer); 1345 } 1346 } 1347 1348 snprintf(buffer, SIZE, "Output thread %p active tracks\n", this); 1349 result.append(buffer); 1350 result.append(" Name Clien Typ Fmt Chn mask Session Buf S M F SRate LeftV RighV Serv User Main buf Aux Buf\n"); 1351 for (size_t i = 0; i < mActiveTracks.size(); ++i) { 1352 wp<Track> wTrack = mActiveTracks[i]; 1353 if (wTrack != 0) { 1354 sp<Track> track = wTrack.promote(); 1355 if (track != 0) { 1356 track->dump(buffer, SIZE); 1357 result.append(buffer); 1358 } 1359 } 1360 } 1361 write(fd, result.string(), result.size()); 1362 return NO_ERROR; 1363} 1364 1365status_t AudioFlinger::PlaybackThread::dumpInternals(int fd, const Vector<String16>& args) 1366{ 1367 const size_t SIZE = 256; 1368 char buffer[SIZE]; 1369 String8 result; 1370 1371 snprintf(buffer, SIZE, "\nOutput thread %p internals\n", this); 1372 result.append(buffer); 1373 snprintf(buffer, SIZE, "last write occurred (msecs): %llu\n", ns2ms(systemTime() - mLastWriteTime)); 1374 result.append(buffer); 1375 snprintf(buffer, SIZE, "total writes: %d\n", mNumWrites); 1376 result.append(buffer); 1377 snprintf(buffer, SIZE, "delayed writes: %d\n", mNumDelayedWrites); 1378 result.append(buffer); 1379 snprintf(buffer, SIZE, "blocked in write: %d\n", mInWrite); 1380 result.append(buffer); 1381 snprintf(buffer, SIZE, "suspend count: %d\n", mSuspended); 1382 result.append(buffer); 1383 snprintf(buffer, SIZE, "mix buffer : %p\n", mMixBuffer); 1384 result.append(buffer); 1385 write(fd, result.string(), result.size()); 1386 1387 dumpBase(fd, args); 1388 1389 return NO_ERROR; 1390} 1391 1392// Thread virtuals 1393status_t AudioFlinger::PlaybackThread::readyToRun() 1394{ 1395 if (mSampleRate == 0) { 1396 LOGE("No working audio driver found."); 1397 return NO_INIT; 1398 } 1399 LOGI("AudioFlinger's thread %p ready to run", this); 1400 return NO_ERROR; 1401} 1402 1403void AudioFlinger::PlaybackThread::onFirstRef() 1404{ 1405 run(mName, ANDROID_PRIORITY_URGENT_AUDIO); 1406} 1407 1408// PlaybackThread::createTrack_l() must be called with AudioFlinger::mLock held 1409sp<AudioFlinger::PlaybackThread::Track> AudioFlinger::PlaybackThread::createTrack_l( 1410 const sp<AudioFlinger::Client>& client, 1411 int streamType, 1412 uint32_t sampleRate, 1413 uint32_t format, 1414 uint32_t channelMask, 1415 int frameCount, 1416 const sp<IMemory>& sharedBuffer, 1417 int sessionId, 1418 status_t *status) 1419{ 1420 sp<Track> track; 1421 status_t lStatus; 1422 1423 if (mType == DIRECT) { 1424 if ((format & AUDIO_FORMAT_MAIN_MASK) == AUDIO_FORMAT_PCM) { 1425 if (sampleRate != mSampleRate || format != mFormat || channelMask != mChannelMask) { 1426 LOGE("createTrack_l() Bad parameter: sampleRate %d format %d, channelMask 0x%08x \"" 1427 "for output %p with format %d", 1428 sampleRate, format, channelMask, mOutput, mFormat); 1429 lStatus = BAD_VALUE; 1430 goto Exit; 1431 } 1432 } 1433 } else { 1434 // Resampler implementation limits input sampling rate to 2 x output sampling rate. 1435 if (sampleRate > mSampleRate*2) { 1436 LOGE("Sample rate out of range: %d mSampleRate %d", sampleRate, mSampleRate); 1437 lStatus = BAD_VALUE; 1438 goto Exit; 1439 } 1440 } 1441 1442 lStatus = initCheck(); 1443 if (lStatus != NO_ERROR) { 1444 LOGE("Audio driver not initialized."); 1445 goto Exit; 1446 } 1447 1448 { // scope for mLock 1449 Mutex::Autolock _l(mLock); 1450 1451 // all tracks in same audio session must share the same routing strategy otherwise 1452 // conflicts will happen when tracks are moved from one output to another by audio policy 1453 // manager 1454 uint32_t strategy = 1455 AudioSystem::getStrategyForStream((audio_stream_type_t)streamType); 1456 for (size_t i = 0; i < mTracks.size(); ++i) { 1457 sp<Track> t = mTracks[i]; 1458 if (t != 0) { 1459 if (sessionId == t->sessionId() && 1460 strategy != AudioSystem::getStrategyForStream((audio_stream_type_t)t->type())) { 1461 lStatus = BAD_VALUE; 1462 goto Exit; 1463 } 1464 } 1465 } 1466 1467 track = new Track(this, client, streamType, sampleRate, format, 1468 channelMask, frameCount, sharedBuffer, sessionId); 1469 if (track->getCblk() == NULL || track->name() < 0) { 1470 lStatus = NO_MEMORY; 1471 goto Exit; 1472 } 1473 mTracks.add(track); 1474 1475 sp<EffectChain> chain = getEffectChain_l(sessionId); 1476 if (chain != 0) { 1477 LOGV("createTrack_l() setting main buffer %p", chain->inBuffer()); 1478 track->setMainBuffer(chain->inBuffer()); 1479 chain->setStrategy(AudioSystem::getStrategyForStream((audio_stream_type_t)track->type())); 1480 chain->incTrackCnt(); 1481 } 1482 } 1483 lStatus = NO_ERROR; 1484 1485Exit: 1486 if(status) { 1487 *status = lStatus; 1488 } 1489 return track; 1490} 1491 1492uint32_t AudioFlinger::PlaybackThread::latency() const 1493{ 1494 if (mOutput) { 1495 return mOutput->stream->get_latency(mOutput->stream); 1496 } 1497 else { 1498 return 0; 1499 } 1500} 1501 1502status_t AudioFlinger::PlaybackThread::setMasterVolume(float value) 1503{ 1504 mMasterVolume = value; 1505 return NO_ERROR; 1506} 1507 1508status_t AudioFlinger::PlaybackThread::setMasterMute(bool muted) 1509{ 1510 mMasterMute = muted; 1511 return NO_ERROR; 1512} 1513 1514float AudioFlinger::PlaybackThread::masterVolume() const 1515{ 1516 return mMasterVolume; 1517} 1518 1519bool AudioFlinger::PlaybackThread::masterMute() const 1520{ 1521 return mMasterMute; 1522} 1523 1524status_t AudioFlinger::PlaybackThread::setStreamVolume(int stream, float value) 1525{ 1526 mStreamTypes[stream].volume = value; 1527 return NO_ERROR; 1528} 1529 1530status_t AudioFlinger::PlaybackThread::setStreamMute(int stream, bool muted) 1531{ 1532 mStreamTypes[stream].mute = muted; 1533 return NO_ERROR; 1534} 1535 1536float AudioFlinger::PlaybackThread::streamVolume(int stream) const 1537{ 1538 return mStreamTypes[stream].volume; 1539} 1540 1541bool AudioFlinger::PlaybackThread::streamMute(int stream) const 1542{ 1543 return mStreamTypes[stream].mute; 1544} 1545 1546// addTrack_l() must be called with ThreadBase::mLock held 1547status_t AudioFlinger::PlaybackThread::addTrack_l(const sp<Track>& track) 1548{ 1549 status_t status = ALREADY_EXISTS; 1550 1551 // set retry count for buffer fill 1552 track->mRetryCount = kMaxTrackStartupRetries; 1553 if (mActiveTracks.indexOf(track) < 0) { 1554 // the track is newly added, make sure it fills up all its 1555 // buffers before playing. This is to ensure the client will 1556 // effectively get the latency it requested. 1557 track->mFillingUpStatus = Track::FS_FILLING; 1558 track->mResetDone = false; 1559 mActiveTracks.add(track); 1560 if (track->mainBuffer() != mMixBuffer) { 1561 sp<EffectChain> chain = getEffectChain_l(track->sessionId()); 1562 if (chain != 0) { 1563 LOGV("addTrack_l() starting track on chain %p for session %d", chain.get(), track->sessionId()); 1564 chain->incActiveTrackCnt(); 1565 } 1566 } 1567 1568 status = NO_ERROR; 1569 } 1570 1571 LOGV("mWaitWorkCV.broadcast"); 1572 mWaitWorkCV.broadcast(); 1573 1574 return status; 1575} 1576 1577// destroyTrack_l() must be called with ThreadBase::mLock held 1578void AudioFlinger::PlaybackThread::destroyTrack_l(const sp<Track>& track) 1579{ 1580 track->mState = TrackBase::TERMINATED; 1581 if (mActiveTracks.indexOf(track) < 0) { 1582 removeTrack_l(track); 1583 } 1584} 1585 1586void AudioFlinger::PlaybackThread::removeTrack_l(const sp<Track>& track) 1587{ 1588 mTracks.remove(track); 1589 deleteTrackName_l(track->name()); 1590 sp<EffectChain> chain = getEffectChain_l(track->sessionId()); 1591 if (chain != 0) { 1592 chain->decTrackCnt(); 1593 } 1594} 1595 1596String8 AudioFlinger::PlaybackThread::getParameters(const String8& keys) 1597{ 1598 String8 out_s8; 1599 char *s; 1600 1601 s = mOutput->stream->common.get_parameters(&mOutput->stream->common, keys.string()); 1602 out_s8 = String8(s); 1603 free(s); 1604 return out_s8; 1605} 1606 1607// destroyTrack_l() must be called with AudioFlinger::mLock held 1608void AudioFlinger::PlaybackThread::audioConfigChanged_l(int event, int param) { 1609 AudioSystem::OutputDescriptor desc; 1610 void *param2 = 0; 1611 1612 LOGV("PlaybackThread::audioConfigChanged_l, thread %p, event %d, param %d", this, event, param); 1613 1614 switch (event) { 1615 case AudioSystem::OUTPUT_OPENED: 1616 case AudioSystem::OUTPUT_CONFIG_CHANGED: 1617 desc.channels = mChannelMask; 1618 desc.samplingRate = mSampleRate; 1619 desc.format = mFormat; 1620 desc.frameCount = mFrameCount; 1621 desc.latency = latency(); 1622 param2 = &desc; 1623 break; 1624 1625 case AudioSystem::STREAM_CONFIG_CHANGED: 1626 param2 = ¶m; 1627 case AudioSystem::OUTPUT_CLOSED: 1628 default: 1629 break; 1630 } 1631 mAudioFlinger->audioConfigChanged_l(event, mId, param2); 1632} 1633 1634void AudioFlinger::PlaybackThread::readOutputParameters() 1635{ 1636 mSampleRate = mOutput->stream->common.get_sample_rate(&mOutput->stream->common); 1637 mChannelMask = mOutput->stream->common.get_channels(&mOutput->stream->common); 1638 mChannelCount = (uint16_t)popcount(mChannelMask); 1639 mFormat = mOutput->stream->common.get_format(&mOutput->stream->common); 1640 mFrameSize = (uint16_t)audio_stream_frame_size(&mOutput->stream->common); 1641 mFrameCount = mOutput->stream->common.get_buffer_size(&mOutput->stream->common) / mFrameSize; 1642 1643 // FIXME - Current mixer implementation only supports stereo output: Always 1644 // Allocate a stereo buffer even if HW output is mono. 1645 if (mMixBuffer != NULL) delete[] mMixBuffer; 1646 mMixBuffer = new int16_t[mFrameCount * 2]; 1647 memset(mMixBuffer, 0, mFrameCount * 2 * sizeof(int16_t)); 1648 1649 // force reconfiguration of effect chains and engines to take new buffer size and audio 1650 // parameters into account 1651 // Note that mLock is not held when readOutputParameters() is called from the constructor 1652 // but in this case nothing is done below as no audio sessions have effect yet so it doesn't 1653 // matter. 1654 // create a copy of mEffectChains as calling moveEffectChain_l() can reorder some effect chains 1655 Vector< sp<EffectChain> > effectChains = mEffectChains; 1656 for (size_t i = 0; i < effectChains.size(); i ++) { 1657 mAudioFlinger->moveEffectChain_l(effectChains[i]->sessionId(), this, this, false); 1658 } 1659} 1660 1661status_t AudioFlinger::PlaybackThread::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames) 1662{ 1663 if (halFrames == 0 || dspFrames == 0) { 1664 return BAD_VALUE; 1665 } 1666 if (initCheck() != NO_ERROR) { 1667 return INVALID_OPERATION; 1668 } 1669 *halFrames = mBytesWritten / audio_stream_frame_size(&mOutput->stream->common); 1670 1671 return mOutput->stream->get_render_position(mOutput->stream, dspFrames); 1672} 1673 1674uint32_t AudioFlinger::PlaybackThread::hasAudioSession(int sessionId) 1675{ 1676 Mutex::Autolock _l(mLock); 1677 uint32_t result = 0; 1678 if (getEffectChain_l(sessionId) != 0) { 1679 result = EFFECT_SESSION; 1680 } 1681 1682 for (size_t i = 0; i < mTracks.size(); ++i) { 1683 sp<Track> track = mTracks[i]; 1684 if (sessionId == track->sessionId() && 1685 !(track->mCblk->flags & CBLK_INVALID_MSK)) { 1686 result |= TRACK_SESSION; 1687 break; 1688 } 1689 } 1690 1691 return result; 1692} 1693 1694uint32_t AudioFlinger::PlaybackThread::getStrategyForSession_l(int sessionId) 1695{ 1696 // session AUDIO_SESSION_OUTPUT_MIX is placed in same strategy as MUSIC stream so that 1697 // it is moved to correct output by audio policy manager when A2DP is connected or disconnected 1698 if (sessionId == AUDIO_SESSION_OUTPUT_MIX) { 1699 return AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC); 1700 } 1701 for (size_t i = 0; i < mTracks.size(); i++) { 1702 sp<Track> track = mTracks[i]; 1703 if (sessionId == track->sessionId() && 1704 !(track->mCblk->flags & CBLK_INVALID_MSK)) { 1705 return AudioSystem::getStrategyForStream((audio_stream_type_t) track->type()); 1706 } 1707 } 1708 return AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC); 1709} 1710 1711 1712// ---------------------------------------------------------------------------- 1713 1714AudioFlinger::MixerThread::MixerThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device) 1715 : PlaybackThread(audioFlinger, output, id, device), 1716 mAudioMixer(0) 1717{ 1718 mType = ThreadBase::MIXER; 1719 mAudioMixer = new AudioMixer(mFrameCount, mSampleRate); 1720 1721 // FIXME - Current mixer implementation only supports stereo output 1722 if (mChannelCount == 1) { 1723 LOGE("Invalid audio hardware channel count"); 1724 } 1725} 1726 1727AudioFlinger::MixerThread::~MixerThread() 1728{ 1729 delete mAudioMixer; 1730} 1731 1732bool AudioFlinger::MixerThread::threadLoop() 1733{ 1734 Vector< sp<Track> > tracksToRemove; 1735 uint32_t mixerStatus = MIXER_IDLE; 1736 nsecs_t standbyTime = systemTime(); 1737 size_t mixBufferSize = mFrameCount * mFrameSize; 1738 // FIXME: Relaxed timing because of a certain device that can't meet latency 1739 // Should be reduced to 2x after the vendor fixes the driver issue 1740 nsecs_t maxPeriod = seconds(mFrameCount) / mSampleRate * 3; 1741 nsecs_t lastWarning = 0; 1742 bool longStandbyExit = false; 1743 uint32_t activeSleepTime = activeSleepTimeUs(); 1744 uint32_t idleSleepTime = idleSleepTimeUs(); 1745 uint32_t sleepTime = idleSleepTime; 1746 Vector< sp<EffectChain> > effectChains; 1747#ifdef DEBUG_CPU_USAGE 1748 ThreadCpuUsage cpu; 1749 const CentralTendencyStatistics& stats = cpu.statistics(); 1750#endif 1751 1752 acquireWakeLock(); 1753 1754 while (!exitPending()) 1755 { 1756#ifdef DEBUG_CPU_USAGE 1757 cpu.sampleAndEnable(); 1758 unsigned n = stats.n(); 1759 // cpu.elapsed() is expensive, so don't call it every loop 1760 if ((n & 127) == 1) { 1761 long long elapsed = cpu.elapsed(); 1762 if (elapsed >= DEBUG_CPU_USAGE * 1000000000LL) { 1763 double perLoop = elapsed / (double) n; 1764 double perLoop100 = perLoop * 0.01; 1765 double mean = stats.mean(); 1766 double stddev = stats.stddev(); 1767 double minimum = stats.minimum(); 1768 double maximum = stats.maximum(); 1769 cpu.resetStatistics(); 1770 LOGI("CPU usage over past %.1f secs (%u mixer loops at %.1f mean ms per loop):\n us per mix loop: mean=%.0f stddev=%.0f min=%.0f max=%.0f\n %% of wall: mean=%.1f stddev=%.1f min=%.1f max=%.1f", 1771 elapsed * .000000001, n, perLoop * .000001, 1772 mean * .001, 1773 stddev * .001, 1774 minimum * .001, 1775 maximum * .001, 1776 mean / perLoop100, 1777 stddev / perLoop100, 1778 minimum / perLoop100, 1779 maximum / perLoop100); 1780 } 1781 } 1782#endif 1783 processConfigEvents(); 1784 1785 mixerStatus = MIXER_IDLE; 1786 { // scope for mLock 1787 1788 Mutex::Autolock _l(mLock); 1789 1790 if (checkForNewParameters_l()) { 1791 mixBufferSize = mFrameCount * mFrameSize; 1792 // FIXME: Relaxed timing because of a certain device that can't meet latency 1793 // Should be reduced to 2x after the vendor fixes the driver issue 1794 maxPeriod = seconds(mFrameCount) / mSampleRate * 3; 1795 activeSleepTime = activeSleepTimeUs(); 1796 idleSleepTime = idleSleepTimeUs(); 1797 } 1798 1799 const SortedVector< wp<Track> >& activeTracks = mActiveTracks; 1800 1801 // put audio hardware into standby after short delay 1802 if UNLIKELY((!activeTracks.size() && systemTime() > standbyTime) || 1803 mSuspended) { 1804 if (!mStandby) { 1805 LOGV("Audio hardware entering standby, mixer %p, mSuspended %d\n", this, mSuspended); 1806 mOutput->stream->common.standby(&mOutput->stream->common); 1807 mStandby = true; 1808 mBytesWritten = 0; 1809 } 1810 1811 if (!activeTracks.size() && mConfigEvents.isEmpty()) { 1812 // we're about to wait, flush the binder command buffer 1813 IPCThreadState::self()->flushCommands(); 1814 1815 if (exitPending()) break; 1816 1817 releaseWakeLock_l(); 1818 // wait until we have something to do... 1819 LOGV("MixerThread %p TID %d going to sleep\n", this, gettid()); 1820 mWaitWorkCV.wait(mLock); 1821 LOGV("MixerThread %p TID %d waking up\n", this, gettid()); 1822 acquireWakeLock_l(); 1823 1824 if (mMasterMute == false) { 1825 char value[PROPERTY_VALUE_MAX]; 1826 property_get("ro.audio.silent", value, "0"); 1827 if (atoi(value)) { 1828 LOGD("Silence is golden"); 1829 setMasterMute(true); 1830 } 1831 } 1832 1833 standbyTime = systemTime() + kStandbyTimeInNsecs; 1834 sleepTime = idleSleepTime; 1835 continue; 1836 } 1837 } 1838 1839 mixerStatus = prepareTracks_l(activeTracks, &tracksToRemove); 1840 1841 // prevent any changes in effect chain list and in each effect chain 1842 // during mixing and effect process as the audio buffers could be deleted 1843 // or modified if an effect is created or deleted 1844 lockEffectChains_l(effectChains); 1845 } 1846 1847 if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) { 1848 // mix buffers... 1849 mAudioMixer->process(); 1850 sleepTime = 0; 1851 standbyTime = systemTime() + kStandbyTimeInNsecs; 1852 //TODO: delay standby when effects have a tail 1853 } else { 1854 // If no tracks are ready, sleep once for the duration of an output 1855 // buffer size, then write 0s to the output 1856 if (sleepTime == 0) { 1857 if (mixerStatus == MIXER_TRACKS_ENABLED) { 1858 sleepTime = activeSleepTime; 1859 } else { 1860 sleepTime = idleSleepTime; 1861 } 1862 } else if (mBytesWritten != 0 || 1863 (mixerStatus == MIXER_TRACKS_ENABLED && longStandbyExit)) { 1864 memset (mMixBuffer, 0, mixBufferSize); 1865 sleepTime = 0; 1866 LOGV_IF((mBytesWritten == 0 && (mixerStatus == MIXER_TRACKS_ENABLED && longStandbyExit)), "anticipated start"); 1867 } 1868 // TODO add standby time extension fct of effect tail 1869 } 1870 1871 if (mSuspended) { 1872 sleepTime = suspendSleepTimeUs(); 1873 } 1874 // sleepTime == 0 means we must write to audio hardware 1875 if (sleepTime == 0) { 1876 for (size_t i = 0; i < effectChains.size(); i ++) { 1877 effectChains[i]->process_l(); 1878 } 1879 // enable changes in effect chain 1880 unlockEffectChains(effectChains); 1881 mLastWriteTime = systemTime(); 1882 mInWrite = true; 1883 mBytesWritten += mixBufferSize; 1884 1885 int bytesWritten = (int)mOutput->stream->write(mOutput->stream, mMixBuffer, mixBufferSize); 1886 if (bytesWritten < 0) mBytesWritten -= mixBufferSize; 1887 mNumWrites++; 1888 mInWrite = false; 1889 nsecs_t now = systemTime(); 1890 nsecs_t delta = now - mLastWriteTime; 1891 if (delta > maxPeriod) { 1892 mNumDelayedWrites++; 1893 if ((now - lastWarning) > kWarningThrottle) { 1894 LOGW("write blocked for %llu msecs, %d delayed writes, thread %p", 1895 ns2ms(delta), mNumDelayedWrites, this); 1896 lastWarning = now; 1897 } 1898 if (mStandby) { 1899 longStandbyExit = true; 1900 } 1901 } 1902 mStandby = false; 1903 } else { 1904 // enable changes in effect chain 1905 unlockEffectChains(effectChains); 1906 usleep(sleepTime); 1907 } 1908 1909 // finally let go of all our tracks, without the lock held 1910 // since we can't guarantee the destructors won't acquire that 1911 // same lock. 1912 tracksToRemove.clear(); 1913 1914 // Effect chains will be actually deleted here if they were removed from 1915 // mEffectChains list during mixing or effects processing 1916 effectChains.clear(); 1917 } 1918 1919 if (!mStandby) { 1920 mOutput->stream->common.standby(&mOutput->stream->common); 1921 } 1922 1923 releaseWakeLock(); 1924 1925 LOGV("MixerThread %p exiting", this); 1926 return false; 1927} 1928 1929// prepareTracks_l() must be called with ThreadBase::mLock held 1930uint32_t AudioFlinger::MixerThread::prepareTracks_l(const SortedVector< wp<Track> >& activeTracks, Vector< sp<Track> > *tracksToRemove) 1931{ 1932 1933 uint32_t mixerStatus = MIXER_IDLE; 1934 // find out which tracks need to be processed 1935 size_t count = activeTracks.size(); 1936 size_t mixedTracks = 0; 1937 size_t tracksWithEffect = 0; 1938 1939 float masterVolume = mMasterVolume; 1940 bool masterMute = mMasterMute; 1941 1942 if (masterMute) { 1943 masterVolume = 0; 1944 } 1945 // Delegate master volume control to effect in output mix effect chain if needed 1946 sp<EffectChain> chain = getEffectChain_l(AUDIO_SESSION_OUTPUT_MIX); 1947 if (chain != 0) { 1948 uint32_t v = (uint32_t)(masterVolume * (1 << 24)); 1949 chain->setVolume_l(&v, &v); 1950 masterVolume = (float)((v + (1 << 23)) >> 24); 1951 chain.clear(); 1952 } 1953 1954 for (size_t i=0 ; i<count ; i++) { 1955 sp<Track> t = activeTracks[i].promote(); 1956 if (t == 0) continue; 1957 1958 Track* const track = t.get(); 1959 audio_track_cblk_t* cblk = track->cblk(); 1960 1961 // The first time a track is added we wait 1962 // for all its buffers to be filled before processing it 1963 mAudioMixer->setActiveTrack(track->name()); 1964 if (cblk->framesReady() && track->isReady() && 1965 !track->isPaused() && !track->isTerminated()) 1966 { 1967 //LOGV("track %d u=%08x, s=%08x [OK] on thread %p", track->name(), cblk->user, cblk->server, this); 1968 1969 mixedTracks++; 1970 1971 // track->mainBuffer() != mMixBuffer means there is an effect chain 1972 // connected to the track 1973 chain.clear(); 1974 if (track->mainBuffer() != mMixBuffer) { 1975 chain = getEffectChain_l(track->sessionId()); 1976 // Delegate volume control to effect in track effect chain if needed 1977 if (chain != 0) { 1978 tracksWithEffect++; 1979 } else { 1980 LOGW("prepareTracks_l(): track %08x attached to effect but no chain found on session %d", 1981 track->name(), track->sessionId()); 1982 } 1983 } 1984 1985 1986 int param = AudioMixer::VOLUME; 1987 if (track->mFillingUpStatus == Track::FS_FILLED) { 1988 // no ramp for the first volume setting 1989 track->mFillingUpStatus = Track::FS_ACTIVE; 1990 if (track->mState == TrackBase::RESUMING) { 1991 track->mState = TrackBase::ACTIVE; 1992 param = AudioMixer::RAMP_VOLUME; 1993 } 1994 mAudioMixer->setParameter(AudioMixer::RESAMPLE, AudioMixer::RESET, NULL); 1995 } else if (cblk->server != 0) { 1996 // If the track is stopped before the first frame was mixed, 1997 // do not apply ramp 1998 param = AudioMixer::RAMP_VOLUME; 1999 } 2000 2001 // compute volume for this track 2002 uint32_t vl, vr, va; 2003 if (track->isMuted() || track->isPausing() || 2004 mStreamTypes[track->type()].mute) { 2005 vl = vr = va = 0; 2006 if (track->isPausing()) { 2007 track->setPaused(); 2008 } 2009 } else { 2010 2011 // read original volumes with volume control 2012 float typeVolume = mStreamTypes[track->type()].volume; 2013 float v = masterVolume * typeVolume; 2014 vl = (uint32_t)(v * cblk->volume[0]) << 12; 2015 vr = (uint32_t)(v * cblk->volume[1]) << 12; 2016 2017 va = (uint32_t)(v * cblk->sendLevel); 2018 } 2019 // Delegate volume control to effect in track effect chain if needed 2020 if (chain != 0 && chain->setVolume_l(&vl, &vr)) { 2021 // Do not ramp volume if volume is controlled by effect 2022 param = AudioMixer::VOLUME; 2023 track->mHasVolumeController = true; 2024 } else { 2025 // force no volume ramp when volume controller was just disabled or removed 2026 // from effect chain to avoid volume spike 2027 if (track->mHasVolumeController) { 2028 param = AudioMixer::VOLUME; 2029 } 2030 track->mHasVolumeController = false; 2031 } 2032 2033 // Convert volumes from 8.24 to 4.12 format 2034 int16_t left, right, aux; 2035 uint32_t v_clamped = (vl + (1 << 11)) >> 12; 2036 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2037 left = int16_t(v_clamped); 2038 v_clamped = (vr + (1 << 11)) >> 12; 2039 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2040 right = int16_t(v_clamped); 2041 2042 if (va > MAX_GAIN_INT) va = MAX_GAIN_INT; 2043 aux = int16_t(va); 2044 2045 // XXX: these things DON'T need to be done each time 2046 mAudioMixer->setBufferProvider(track); 2047 mAudioMixer->enable(AudioMixer::MIXING); 2048 2049 mAudioMixer->setParameter(param, AudioMixer::VOLUME0, (void *)left); 2050 mAudioMixer->setParameter(param, AudioMixer::VOLUME1, (void *)right); 2051 mAudioMixer->setParameter(param, AudioMixer::AUXLEVEL, (void *)aux); 2052 mAudioMixer->setParameter( 2053 AudioMixer::TRACK, 2054 AudioMixer::FORMAT, (void *)track->format()); 2055 mAudioMixer->setParameter( 2056 AudioMixer::TRACK, 2057 AudioMixer::CHANNEL_MASK, (void *)track->channelMask()); 2058 mAudioMixer->setParameter( 2059 AudioMixer::RESAMPLE, 2060 AudioMixer::SAMPLE_RATE, 2061 (void *)(cblk->sampleRate)); 2062 mAudioMixer->setParameter( 2063 AudioMixer::TRACK, 2064 AudioMixer::MAIN_BUFFER, (void *)track->mainBuffer()); 2065 mAudioMixer->setParameter( 2066 AudioMixer::TRACK, 2067 AudioMixer::AUX_BUFFER, (void *)track->auxBuffer()); 2068 2069 // reset retry count 2070 track->mRetryCount = kMaxTrackRetries; 2071 mixerStatus = MIXER_TRACKS_READY; 2072 } else { 2073 //LOGV("track %d u=%08x, s=%08x [NOT READY] on thread %p", track->name(), cblk->user, cblk->server, this); 2074 if (track->isStopped()) { 2075 track->reset(); 2076 } 2077 if (track->isTerminated() || track->isStopped() || track->isPaused()) { 2078 // We have consumed all the buffers of this track. 2079 // Remove it from the list of active tracks. 2080 tracksToRemove->add(track); 2081 } else { 2082 // No buffers for this track. Give it a few chances to 2083 // fill a buffer, then remove it from active list. 2084 if (--(track->mRetryCount) <= 0) { 2085 LOGV("BUFFER TIMEOUT: remove(%d) from active list on thread %p", track->name(), this); 2086 tracksToRemove->add(track); 2087 // indicate to client process that the track was disabled because of underrun 2088 android_atomic_or(CBLK_DISABLED_ON, &cblk->flags); 2089 } else if (mixerStatus != MIXER_TRACKS_READY) { 2090 mixerStatus = MIXER_TRACKS_ENABLED; 2091 } 2092 } 2093 mAudioMixer->disable(AudioMixer::MIXING); 2094 } 2095 } 2096 2097 // remove all the tracks that need to be... 2098 count = tracksToRemove->size(); 2099 if (UNLIKELY(count)) { 2100 for (size_t i=0 ; i<count ; i++) { 2101 const sp<Track>& track = tracksToRemove->itemAt(i); 2102 mActiveTracks.remove(track); 2103 if (track->mainBuffer() != mMixBuffer) { 2104 chain = getEffectChain_l(track->sessionId()); 2105 if (chain != 0) { 2106 LOGV("stopping track on chain %p for session Id: %d", chain.get(), track->sessionId()); 2107 chain->decActiveTrackCnt(); 2108 } 2109 } 2110 if (track->isTerminated()) { 2111 removeTrack_l(track); 2112 } 2113 } 2114 } 2115 2116 // mix buffer must be cleared if all tracks are connected to an 2117 // effect chain as in this case the mixer will not write to 2118 // mix buffer and track effects will accumulate into it 2119 if (mixedTracks != 0 && mixedTracks == tracksWithEffect) { 2120 memset(mMixBuffer, 0, mFrameCount * mChannelCount * sizeof(int16_t)); 2121 } 2122 2123 return mixerStatus; 2124} 2125 2126void AudioFlinger::MixerThread::invalidateTracks(int streamType) 2127{ 2128 LOGV ("MixerThread::invalidateTracks() mixer %p, streamType %d, mTracks.size %d", 2129 this, streamType, mTracks.size()); 2130 Mutex::Autolock _l(mLock); 2131 2132 size_t size = mTracks.size(); 2133 for (size_t i = 0; i < size; i++) { 2134 sp<Track> t = mTracks[i]; 2135 if (t->type() == streamType) { 2136 android_atomic_or(CBLK_INVALID_ON, &t->mCblk->flags); 2137 t->mCblk->cv.signal(); 2138 } 2139 } 2140} 2141 2142 2143// getTrackName_l() must be called with ThreadBase::mLock held 2144int AudioFlinger::MixerThread::getTrackName_l() 2145{ 2146 return mAudioMixer->getTrackName(); 2147} 2148 2149// deleteTrackName_l() must be called with ThreadBase::mLock held 2150void AudioFlinger::MixerThread::deleteTrackName_l(int name) 2151{ 2152 LOGV("remove track (%d) and delete from mixer", name); 2153 mAudioMixer->deleteTrackName(name); 2154} 2155 2156// checkForNewParameters_l() must be called with ThreadBase::mLock held 2157bool AudioFlinger::MixerThread::checkForNewParameters_l() 2158{ 2159 bool reconfig = false; 2160 2161 while (!mNewParameters.isEmpty()) { 2162 status_t status = NO_ERROR; 2163 String8 keyValuePair = mNewParameters[0]; 2164 AudioParameter param = AudioParameter(keyValuePair); 2165 int value; 2166 2167 if (param.getInt(String8(AudioParameter::keySamplingRate), value) == NO_ERROR) { 2168 reconfig = true; 2169 } 2170 if (param.getInt(String8(AudioParameter::keyFormat), value) == NO_ERROR) { 2171 if (value != AUDIO_FORMAT_PCM_16_BIT) { 2172 status = BAD_VALUE; 2173 } else { 2174 reconfig = true; 2175 } 2176 } 2177 if (param.getInt(String8(AudioParameter::keyChannels), value) == NO_ERROR) { 2178 if (value != AUDIO_CHANNEL_OUT_STEREO) { 2179 status = BAD_VALUE; 2180 } else { 2181 reconfig = true; 2182 } 2183 } 2184 if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) { 2185 // do not accept frame count changes if tracks are open as the track buffer 2186 // size depends on frame count and correct behavior would not be garantied 2187 // if frame count is changed after track creation 2188 if (!mTracks.isEmpty()) { 2189 status = INVALID_OPERATION; 2190 } else { 2191 reconfig = true; 2192 } 2193 } 2194 if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) { 2195 // when changing the audio output device, call addBatteryData to notify 2196 // the change 2197 if ((int)mDevice != value) { 2198 uint32_t params = 0; 2199 // check whether speaker is on 2200 if (value & AUDIO_DEVICE_OUT_SPEAKER) { 2201 params |= IMediaPlayerService::kBatteryDataSpeakerOn; 2202 } 2203 2204 int deviceWithoutSpeaker 2205 = AUDIO_DEVICE_OUT_ALL & ~AUDIO_DEVICE_OUT_SPEAKER; 2206 // check if any other device (except speaker) is on 2207 if (value & deviceWithoutSpeaker ) { 2208 params |= IMediaPlayerService::kBatteryDataOtherAudioDeviceOn; 2209 } 2210 2211 if (params != 0) { 2212 addBatteryData(params); 2213 } 2214 } 2215 2216 // forward device change to effects that have requested to be 2217 // aware of attached audio device. 2218 mDevice = (uint32_t)value; 2219 for (size_t i = 0; i < mEffectChains.size(); i++) { 2220 mEffectChains[i]->setDevice_l(mDevice); 2221 } 2222 } 2223 2224 if (status == NO_ERROR) { 2225 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2226 keyValuePair.string()); 2227 if (!mStandby && status == INVALID_OPERATION) { 2228 mOutput->stream->common.standby(&mOutput->stream->common); 2229 mStandby = true; 2230 mBytesWritten = 0; 2231 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2232 keyValuePair.string()); 2233 } 2234 if (status == NO_ERROR && reconfig) { 2235 delete mAudioMixer; 2236 readOutputParameters(); 2237 mAudioMixer = new AudioMixer(mFrameCount, mSampleRate); 2238 for (size_t i = 0; i < mTracks.size() ; i++) { 2239 int name = getTrackName_l(); 2240 if (name < 0) break; 2241 mTracks[i]->mName = name; 2242 // limit track sample rate to 2 x new output sample rate 2243 if (mTracks[i]->mCblk->sampleRate > 2 * sampleRate()) { 2244 mTracks[i]->mCblk->sampleRate = 2 * sampleRate(); 2245 } 2246 } 2247 sendConfigEvent_l(AudioSystem::OUTPUT_CONFIG_CHANGED); 2248 } 2249 } 2250 2251 mNewParameters.removeAt(0); 2252 2253 mParamStatus = status; 2254 mParamCond.signal(); 2255 mWaitWorkCV.wait(mLock); 2256 } 2257 return reconfig; 2258} 2259 2260status_t AudioFlinger::MixerThread::dumpInternals(int fd, const Vector<String16>& args) 2261{ 2262 const size_t SIZE = 256; 2263 char buffer[SIZE]; 2264 String8 result; 2265 2266 PlaybackThread::dumpInternals(fd, args); 2267 2268 snprintf(buffer, SIZE, "AudioMixer tracks: %08x\n", mAudioMixer->trackNames()); 2269 result.append(buffer); 2270 write(fd, result.string(), result.size()); 2271 return NO_ERROR; 2272} 2273 2274uint32_t AudioFlinger::MixerThread::activeSleepTimeUs() 2275{ 2276 return (uint32_t)(mOutput->stream->get_latency(mOutput->stream) * 1000) / 2; 2277} 2278 2279uint32_t AudioFlinger::MixerThread::idleSleepTimeUs() 2280{ 2281 return (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000) / 2; 2282} 2283 2284uint32_t AudioFlinger::MixerThread::suspendSleepTimeUs() 2285{ 2286 return (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000); 2287} 2288 2289// ---------------------------------------------------------------------------- 2290AudioFlinger::DirectOutputThread::DirectOutputThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device) 2291 : PlaybackThread(audioFlinger, output, id, device) 2292{ 2293 mType = ThreadBase::DIRECT; 2294} 2295 2296AudioFlinger::DirectOutputThread::~DirectOutputThread() 2297{ 2298} 2299 2300 2301static inline int16_t clamp16(int32_t sample) 2302{ 2303 if ((sample>>15) ^ (sample>>31)) 2304 sample = 0x7FFF ^ (sample>>31); 2305 return sample; 2306} 2307 2308static inline 2309int32_t mul(int16_t in, int16_t v) 2310{ 2311#if defined(__arm__) && !defined(__thumb__) 2312 int32_t out; 2313 asm( "smulbb %[out], %[in], %[v] \n" 2314 : [out]"=r"(out) 2315 : [in]"%r"(in), [v]"r"(v) 2316 : ); 2317 return out; 2318#else 2319 return in * int32_t(v); 2320#endif 2321} 2322 2323void AudioFlinger::DirectOutputThread::applyVolume(uint16_t leftVol, uint16_t rightVol, bool ramp) 2324{ 2325 // Do not apply volume on compressed audio 2326 if (!audio_is_linear_pcm(mFormat)) { 2327 return; 2328 } 2329 2330 // convert to signed 16 bit before volume calculation 2331 if (mFormat == AUDIO_FORMAT_PCM_8_BIT) { 2332 size_t count = mFrameCount * mChannelCount; 2333 uint8_t *src = (uint8_t *)mMixBuffer + count-1; 2334 int16_t *dst = mMixBuffer + count-1; 2335 while(count--) { 2336 *dst-- = (int16_t)(*src--^0x80) << 8; 2337 } 2338 } 2339 2340 size_t frameCount = mFrameCount; 2341 int16_t *out = mMixBuffer; 2342 if (ramp) { 2343 if (mChannelCount == 1) { 2344 int32_t d = ((int32_t)leftVol - (int32_t)mLeftVolShort) << 16; 2345 int32_t vlInc = d / (int32_t)frameCount; 2346 int32_t vl = ((int32_t)mLeftVolShort << 16); 2347 do { 2348 out[0] = clamp16(mul(out[0], vl >> 16) >> 12); 2349 out++; 2350 vl += vlInc; 2351 } while (--frameCount); 2352 2353 } else { 2354 int32_t d = ((int32_t)leftVol - (int32_t)mLeftVolShort) << 16; 2355 int32_t vlInc = d / (int32_t)frameCount; 2356 d = ((int32_t)rightVol - (int32_t)mRightVolShort) << 16; 2357 int32_t vrInc = d / (int32_t)frameCount; 2358 int32_t vl = ((int32_t)mLeftVolShort << 16); 2359 int32_t vr = ((int32_t)mRightVolShort << 16); 2360 do { 2361 out[0] = clamp16(mul(out[0], vl >> 16) >> 12); 2362 out[1] = clamp16(mul(out[1], vr >> 16) >> 12); 2363 out += 2; 2364 vl += vlInc; 2365 vr += vrInc; 2366 } while (--frameCount); 2367 } 2368 } else { 2369 if (mChannelCount == 1) { 2370 do { 2371 out[0] = clamp16(mul(out[0], leftVol) >> 12); 2372 out++; 2373 } while (--frameCount); 2374 } else { 2375 do { 2376 out[0] = clamp16(mul(out[0], leftVol) >> 12); 2377 out[1] = clamp16(mul(out[1], rightVol) >> 12); 2378 out += 2; 2379 } while (--frameCount); 2380 } 2381 } 2382 2383 // convert back to unsigned 8 bit after volume calculation 2384 if (mFormat == AUDIO_FORMAT_PCM_8_BIT) { 2385 size_t count = mFrameCount * mChannelCount; 2386 int16_t *src = mMixBuffer; 2387 uint8_t *dst = (uint8_t *)mMixBuffer; 2388 while(count--) { 2389 *dst++ = (uint8_t)(((int32_t)*src++ + (1<<7)) >> 8)^0x80; 2390 } 2391 } 2392 2393 mLeftVolShort = leftVol; 2394 mRightVolShort = rightVol; 2395} 2396 2397bool AudioFlinger::DirectOutputThread::threadLoop() 2398{ 2399 uint32_t mixerStatus = MIXER_IDLE; 2400 sp<Track> trackToRemove; 2401 sp<Track> activeTrack; 2402 nsecs_t standbyTime = systemTime(); 2403 int8_t *curBuf; 2404 size_t mixBufferSize = mFrameCount*mFrameSize; 2405 uint32_t activeSleepTime = activeSleepTimeUs(); 2406 uint32_t idleSleepTime = idleSleepTimeUs(); 2407 uint32_t sleepTime = idleSleepTime; 2408 // use shorter standby delay as on normal output to release 2409 // hardware resources as soon as possible 2410 nsecs_t standbyDelay = microseconds(activeSleepTime*2); 2411 2412 acquireWakeLock(); 2413 2414 while (!exitPending()) 2415 { 2416 bool rampVolume; 2417 uint16_t leftVol; 2418 uint16_t rightVol; 2419 Vector< sp<EffectChain> > effectChains; 2420 2421 processConfigEvents(); 2422 2423 mixerStatus = MIXER_IDLE; 2424 2425 { // scope for the mLock 2426 2427 Mutex::Autolock _l(mLock); 2428 2429 if (checkForNewParameters_l()) { 2430 mixBufferSize = mFrameCount*mFrameSize; 2431 activeSleepTime = activeSleepTimeUs(); 2432 idleSleepTime = idleSleepTimeUs(); 2433 standbyDelay = microseconds(activeSleepTime*2); 2434 } 2435 2436 // put audio hardware into standby after short delay 2437 if UNLIKELY((!mActiveTracks.size() && systemTime() > standbyTime) || 2438 mSuspended) { 2439 // wait until we have something to do... 2440 if (!mStandby) { 2441 LOGV("Audio hardware entering standby, mixer %p\n", this); 2442 mOutput->stream->common.standby(&mOutput->stream->common); 2443 mStandby = true; 2444 mBytesWritten = 0; 2445 } 2446 2447 if (!mActiveTracks.size() && mConfigEvents.isEmpty()) { 2448 // we're about to wait, flush the binder command buffer 2449 IPCThreadState::self()->flushCommands(); 2450 2451 if (exitPending()) break; 2452 2453 releaseWakeLock_l(); 2454 LOGV("DirectOutputThread %p TID %d going to sleep\n", this, gettid()); 2455 mWaitWorkCV.wait(mLock); 2456 LOGV("DirectOutputThread %p TID %d waking up in active mode\n", this, gettid()); 2457 acquireWakeLock_l(); 2458 2459 if (mMasterMute == false) { 2460 char value[PROPERTY_VALUE_MAX]; 2461 property_get("ro.audio.silent", value, "0"); 2462 if (atoi(value)) { 2463 LOGD("Silence is golden"); 2464 setMasterMute(true); 2465 } 2466 } 2467 2468 standbyTime = systemTime() + standbyDelay; 2469 sleepTime = idleSleepTime; 2470 continue; 2471 } 2472 } 2473 2474 effectChains = mEffectChains; 2475 2476 // find out which tracks need to be processed 2477 if (mActiveTracks.size() != 0) { 2478 sp<Track> t = mActiveTracks[0].promote(); 2479 if (t == 0) continue; 2480 2481 Track* const track = t.get(); 2482 audio_track_cblk_t* cblk = track->cblk(); 2483 2484 // The first time a track is added we wait 2485 // for all its buffers to be filled before processing it 2486 if (cblk->framesReady() && track->isReady() && 2487 !track->isPaused() && !track->isTerminated()) 2488 { 2489 //LOGV("track %d u=%08x, s=%08x [OK]", track->name(), cblk->user, cblk->server); 2490 2491 if (track->mFillingUpStatus == Track::FS_FILLED) { 2492 track->mFillingUpStatus = Track::FS_ACTIVE; 2493 mLeftVolFloat = mRightVolFloat = 0; 2494 mLeftVolShort = mRightVolShort = 0; 2495 if (track->mState == TrackBase::RESUMING) { 2496 track->mState = TrackBase::ACTIVE; 2497 rampVolume = true; 2498 } 2499 } else if (cblk->server != 0) { 2500 // If the track is stopped before the first frame was mixed, 2501 // do not apply ramp 2502 rampVolume = true; 2503 } 2504 // compute volume for this track 2505 float left, right; 2506 if (track->isMuted() || mMasterMute || track->isPausing() || 2507 mStreamTypes[track->type()].mute) { 2508 left = right = 0; 2509 if (track->isPausing()) { 2510 track->setPaused(); 2511 } 2512 } else { 2513 float typeVolume = mStreamTypes[track->type()].volume; 2514 float v = mMasterVolume * typeVolume; 2515 float v_clamped = v * cblk->volume[0]; 2516 if (v_clamped > MAX_GAIN) v_clamped = MAX_GAIN; 2517 left = v_clamped/MAX_GAIN; 2518 v_clamped = v * cblk->volume[1]; 2519 if (v_clamped > MAX_GAIN) v_clamped = MAX_GAIN; 2520 right = v_clamped/MAX_GAIN; 2521 } 2522 2523 if (left != mLeftVolFloat || right != mRightVolFloat) { 2524 mLeftVolFloat = left; 2525 mRightVolFloat = right; 2526 2527 // If audio HAL implements volume control, 2528 // force software volume to nominal value 2529 if (mOutput->stream->set_volume(mOutput->stream, left, right) == NO_ERROR) { 2530 left = 1.0f; 2531 right = 1.0f; 2532 } 2533 2534 // Convert volumes from float to 8.24 2535 uint32_t vl = (uint32_t)(left * (1 << 24)); 2536 uint32_t vr = (uint32_t)(right * (1 << 24)); 2537 2538 // Delegate volume control to effect in track effect chain if needed 2539 // only one effect chain can be present on DirectOutputThread, so if 2540 // there is one, the track is connected to it 2541 if (!effectChains.isEmpty()) { 2542 // Do not ramp volume if volume is controlled by effect 2543 if(effectChains[0]->setVolume_l(&vl, &vr)) { 2544 rampVolume = false; 2545 } 2546 } 2547 2548 // Convert volumes from 8.24 to 4.12 format 2549 uint32_t v_clamped = (vl + (1 << 11)) >> 12; 2550 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2551 leftVol = (uint16_t)v_clamped; 2552 v_clamped = (vr + (1 << 11)) >> 12; 2553 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2554 rightVol = (uint16_t)v_clamped; 2555 } else { 2556 leftVol = mLeftVolShort; 2557 rightVol = mRightVolShort; 2558 rampVolume = false; 2559 } 2560 2561 // reset retry count 2562 track->mRetryCount = kMaxTrackRetriesDirect; 2563 activeTrack = t; 2564 mixerStatus = MIXER_TRACKS_READY; 2565 } else { 2566 //LOGV("track %d u=%08x, s=%08x [NOT READY]", track->name(), cblk->user, cblk->server); 2567 if (track->isStopped()) { 2568 track->reset(); 2569 } 2570 if (track->isTerminated() || track->isStopped() || track->isPaused()) { 2571 // We have consumed all the buffers of this track. 2572 // Remove it from the list of active tracks. 2573 trackToRemove = track; 2574 } else { 2575 // No buffers for this track. Give it a few chances to 2576 // fill a buffer, then remove it from active list. 2577 if (--(track->mRetryCount) <= 0) { 2578 LOGV("BUFFER TIMEOUT: remove(%d) from active list", track->name()); 2579 trackToRemove = track; 2580 } else { 2581 mixerStatus = MIXER_TRACKS_ENABLED; 2582 } 2583 } 2584 } 2585 } 2586 2587 // remove all the tracks that need to be... 2588 if (UNLIKELY(trackToRemove != 0)) { 2589 mActiveTracks.remove(trackToRemove); 2590 if (!effectChains.isEmpty()) { 2591 LOGV("stopping track on chain %p for session Id: %d", effectChains[0].get(), 2592 trackToRemove->sessionId()); 2593 effectChains[0]->decActiveTrackCnt(); 2594 } 2595 if (trackToRemove->isTerminated()) { 2596 removeTrack_l(trackToRemove); 2597 } 2598 } 2599 2600 lockEffectChains_l(effectChains); 2601 } 2602 2603 if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) { 2604 AudioBufferProvider::Buffer buffer; 2605 size_t frameCount = mFrameCount; 2606 curBuf = (int8_t *)mMixBuffer; 2607 // output audio to hardware 2608 while (frameCount) { 2609 buffer.frameCount = frameCount; 2610 activeTrack->getNextBuffer(&buffer); 2611 if (UNLIKELY(buffer.raw == 0)) { 2612 memset(curBuf, 0, frameCount * mFrameSize); 2613 break; 2614 } 2615 memcpy(curBuf, buffer.raw, buffer.frameCount * mFrameSize); 2616 frameCount -= buffer.frameCount; 2617 curBuf += buffer.frameCount * mFrameSize; 2618 activeTrack->releaseBuffer(&buffer); 2619 } 2620 sleepTime = 0; 2621 standbyTime = systemTime() + standbyDelay; 2622 } else { 2623 if (sleepTime == 0) { 2624 if (mixerStatus == MIXER_TRACKS_ENABLED) { 2625 sleepTime = activeSleepTime; 2626 } else { 2627 sleepTime = idleSleepTime; 2628 } 2629 } else if (mBytesWritten != 0 && audio_is_linear_pcm(mFormat)) { 2630 memset (mMixBuffer, 0, mFrameCount * mFrameSize); 2631 sleepTime = 0; 2632 } 2633 } 2634 2635 if (mSuspended) { 2636 sleepTime = suspendSleepTimeUs(); 2637 } 2638 // sleepTime == 0 means we must write to audio hardware 2639 if (sleepTime == 0) { 2640 if (mixerStatus == MIXER_TRACKS_READY) { 2641 applyVolume(leftVol, rightVol, rampVolume); 2642 } 2643 for (size_t i = 0; i < effectChains.size(); i ++) { 2644 effectChains[i]->process_l(); 2645 } 2646 unlockEffectChains(effectChains); 2647 2648 mLastWriteTime = systemTime(); 2649 mInWrite = true; 2650 mBytesWritten += mixBufferSize; 2651 int bytesWritten = (int)mOutput->stream->write(mOutput->stream, mMixBuffer, mixBufferSize); 2652 if (bytesWritten < 0) mBytesWritten -= mixBufferSize; 2653 mNumWrites++; 2654 mInWrite = false; 2655 mStandby = false; 2656 } else { 2657 unlockEffectChains(effectChains); 2658 usleep(sleepTime); 2659 } 2660 2661 // finally let go of removed track, without the lock held 2662 // since we can't guarantee the destructors won't acquire that 2663 // same lock. 2664 trackToRemove.clear(); 2665 activeTrack.clear(); 2666 2667 // Effect chains will be actually deleted here if they were removed from 2668 // mEffectChains list during mixing or effects processing 2669 effectChains.clear(); 2670 } 2671 2672 if (!mStandby) { 2673 mOutput->stream->common.standby(&mOutput->stream->common); 2674 } 2675 2676 releaseWakeLock(); 2677 2678 LOGV("DirectOutputThread %p exiting", this); 2679 return false; 2680} 2681 2682// getTrackName_l() must be called with ThreadBase::mLock held 2683int AudioFlinger::DirectOutputThread::getTrackName_l() 2684{ 2685 return 0; 2686} 2687 2688// deleteTrackName_l() must be called with ThreadBase::mLock held 2689void AudioFlinger::DirectOutputThread::deleteTrackName_l(int name) 2690{ 2691} 2692 2693// checkForNewParameters_l() must be called with ThreadBase::mLock held 2694bool AudioFlinger::DirectOutputThread::checkForNewParameters_l() 2695{ 2696 bool reconfig = false; 2697 2698 while (!mNewParameters.isEmpty()) { 2699 status_t status = NO_ERROR; 2700 String8 keyValuePair = mNewParameters[0]; 2701 AudioParameter param = AudioParameter(keyValuePair); 2702 int value; 2703 2704 if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) { 2705 // do not accept frame count changes if tracks are open as the track buffer 2706 // size depends on frame count and correct behavior would not be garantied 2707 // if frame count is changed after track creation 2708 if (!mTracks.isEmpty()) { 2709 status = INVALID_OPERATION; 2710 } else { 2711 reconfig = true; 2712 } 2713 } 2714 if (status == NO_ERROR) { 2715 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2716 keyValuePair.string()); 2717 if (!mStandby && status == INVALID_OPERATION) { 2718 mOutput->stream->common.standby(&mOutput->stream->common); 2719 mStandby = true; 2720 mBytesWritten = 0; 2721 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2722 keyValuePair.string()); 2723 } 2724 if (status == NO_ERROR && reconfig) { 2725 readOutputParameters(); 2726 sendConfigEvent_l(AudioSystem::OUTPUT_CONFIG_CHANGED); 2727 } 2728 } 2729 2730 mNewParameters.removeAt(0); 2731 2732 mParamStatus = status; 2733 mParamCond.signal(); 2734 mWaitWorkCV.wait(mLock); 2735 } 2736 return reconfig; 2737} 2738 2739uint32_t AudioFlinger::DirectOutputThread::activeSleepTimeUs() 2740{ 2741 uint32_t time; 2742 if (audio_is_linear_pcm(mFormat)) { 2743 time = (uint32_t)(mOutput->stream->get_latency(mOutput->stream) * 1000) / 2; 2744 } else { 2745 time = 10000; 2746 } 2747 return time; 2748} 2749 2750uint32_t AudioFlinger::DirectOutputThread::idleSleepTimeUs() 2751{ 2752 uint32_t time; 2753 if (audio_is_linear_pcm(mFormat)) { 2754 time = (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000) / 2; 2755 } else { 2756 time = 10000; 2757 } 2758 return time; 2759} 2760 2761uint32_t AudioFlinger::DirectOutputThread::suspendSleepTimeUs() 2762{ 2763 uint32_t time; 2764 if (audio_is_linear_pcm(mFormat)) { 2765 time = (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000); 2766 } else { 2767 time = 10000; 2768 } 2769 return time; 2770} 2771 2772 2773// ---------------------------------------------------------------------------- 2774 2775AudioFlinger::DuplicatingThread::DuplicatingThread(const sp<AudioFlinger>& audioFlinger, AudioFlinger::MixerThread* mainThread, int id) 2776 : MixerThread(audioFlinger, mainThread->getOutput(), id, mainThread->device()), mWaitTimeMs(UINT_MAX) 2777{ 2778 mType = ThreadBase::DUPLICATING; 2779 addOutputTrack(mainThread); 2780} 2781 2782AudioFlinger::DuplicatingThread::~DuplicatingThread() 2783{ 2784 for (size_t i = 0; i < mOutputTracks.size(); i++) { 2785 mOutputTracks[i]->destroy(); 2786 } 2787 mOutputTracks.clear(); 2788} 2789 2790bool AudioFlinger::DuplicatingThread::threadLoop() 2791{ 2792 Vector< sp<Track> > tracksToRemove; 2793 uint32_t mixerStatus = MIXER_IDLE; 2794 nsecs_t standbyTime = systemTime(); 2795 size_t mixBufferSize = mFrameCount*mFrameSize; 2796 SortedVector< sp<OutputTrack> > outputTracks; 2797 uint32_t writeFrames = 0; 2798 uint32_t activeSleepTime = activeSleepTimeUs(); 2799 uint32_t idleSleepTime = idleSleepTimeUs(); 2800 uint32_t sleepTime = idleSleepTime; 2801 Vector< sp<EffectChain> > effectChains; 2802 2803 acquireWakeLock(); 2804 2805 while (!exitPending()) 2806 { 2807 processConfigEvents(); 2808 2809 mixerStatus = MIXER_IDLE; 2810 { // scope for the mLock 2811 2812 Mutex::Autolock _l(mLock); 2813 2814 if (checkForNewParameters_l()) { 2815 mixBufferSize = mFrameCount*mFrameSize; 2816 updateWaitTime(); 2817 activeSleepTime = activeSleepTimeUs(); 2818 idleSleepTime = idleSleepTimeUs(); 2819 } 2820 2821 const SortedVector< wp<Track> >& activeTracks = mActiveTracks; 2822 2823 for (size_t i = 0; i < mOutputTracks.size(); i++) { 2824 outputTracks.add(mOutputTracks[i]); 2825 } 2826 2827 // put audio hardware into standby after short delay 2828 if UNLIKELY((!activeTracks.size() && systemTime() > standbyTime) || 2829 mSuspended) { 2830 if (!mStandby) { 2831 for (size_t i = 0; i < outputTracks.size(); i++) { 2832 outputTracks[i]->stop(); 2833 } 2834 mStandby = true; 2835 mBytesWritten = 0; 2836 } 2837 2838 if (!activeTracks.size() && mConfigEvents.isEmpty()) { 2839 // we're about to wait, flush the binder command buffer 2840 IPCThreadState::self()->flushCommands(); 2841 outputTracks.clear(); 2842 2843 if (exitPending()) break; 2844 2845 releaseWakeLock_l(); 2846 LOGV("DuplicatingThread %p TID %d going to sleep\n", this, gettid()); 2847 mWaitWorkCV.wait(mLock); 2848 LOGV("DuplicatingThread %p TID %d waking up\n", this, gettid()); 2849 acquireWakeLock_l(); 2850 2851 if (mMasterMute == false) { 2852 char value[PROPERTY_VALUE_MAX]; 2853 property_get("ro.audio.silent", value, "0"); 2854 if (atoi(value)) { 2855 LOGD("Silence is golden"); 2856 setMasterMute(true); 2857 } 2858 } 2859 2860 standbyTime = systemTime() + kStandbyTimeInNsecs; 2861 sleepTime = idleSleepTime; 2862 continue; 2863 } 2864 } 2865 2866 mixerStatus = prepareTracks_l(activeTracks, &tracksToRemove); 2867 2868 // prevent any changes in effect chain list and in each effect chain 2869 // during mixing and effect process as the audio buffers could be deleted 2870 // or modified if an effect is created or deleted 2871 lockEffectChains_l(effectChains); 2872 } 2873 2874 if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) { 2875 // mix buffers... 2876 if (outputsReady(outputTracks)) { 2877 mAudioMixer->process(); 2878 } else { 2879 memset(mMixBuffer, 0, mixBufferSize); 2880 } 2881 sleepTime = 0; 2882 writeFrames = mFrameCount; 2883 } else { 2884 if (sleepTime == 0) { 2885 if (mixerStatus == MIXER_TRACKS_ENABLED) { 2886 sleepTime = activeSleepTime; 2887 } else { 2888 sleepTime = idleSleepTime; 2889 } 2890 } else if (mBytesWritten != 0) { 2891 // flush remaining overflow buffers in output tracks 2892 for (size_t i = 0; i < outputTracks.size(); i++) { 2893 if (outputTracks[i]->isActive()) { 2894 sleepTime = 0; 2895 writeFrames = 0; 2896 memset(mMixBuffer, 0, mixBufferSize); 2897 break; 2898 } 2899 } 2900 } 2901 } 2902 2903 if (mSuspended) { 2904 sleepTime = suspendSleepTimeUs(); 2905 } 2906 // sleepTime == 0 means we must write to audio hardware 2907 if (sleepTime == 0) { 2908 for (size_t i = 0; i < effectChains.size(); i ++) { 2909 effectChains[i]->process_l(); 2910 } 2911 // enable changes in effect chain 2912 unlockEffectChains(effectChains); 2913 2914 standbyTime = systemTime() + kStandbyTimeInNsecs; 2915 for (size_t i = 0; i < outputTracks.size(); i++) { 2916 outputTracks[i]->write(mMixBuffer, writeFrames); 2917 } 2918 mStandby = false; 2919 mBytesWritten += mixBufferSize; 2920 } else { 2921 // enable changes in effect chain 2922 unlockEffectChains(effectChains); 2923 usleep(sleepTime); 2924 } 2925 2926 // finally let go of all our tracks, without the lock held 2927 // since we can't guarantee the destructors won't acquire that 2928 // same lock. 2929 tracksToRemove.clear(); 2930 outputTracks.clear(); 2931 2932 // Effect chains will be actually deleted here if they were removed from 2933 // mEffectChains list during mixing or effects processing 2934 effectChains.clear(); 2935 } 2936 2937 releaseWakeLock(); 2938 2939 return false; 2940} 2941 2942void AudioFlinger::DuplicatingThread::addOutputTrack(MixerThread *thread) 2943{ 2944 int frameCount = (3 * mFrameCount * mSampleRate) / thread->sampleRate(); 2945 OutputTrack *outputTrack = new OutputTrack((ThreadBase *)thread, 2946 this, 2947 mSampleRate, 2948 mFormat, 2949 mChannelMask, 2950 frameCount); 2951 if (outputTrack->cblk() != NULL) { 2952 thread->setStreamVolume(AUDIO_STREAM_CNT, 1.0f); 2953 mOutputTracks.add(outputTrack); 2954 LOGV("addOutputTrack() track %p, on thread %p", outputTrack, thread); 2955 updateWaitTime(); 2956 } 2957} 2958 2959void AudioFlinger::DuplicatingThread::removeOutputTrack(MixerThread *thread) 2960{ 2961 Mutex::Autolock _l(mLock); 2962 for (size_t i = 0; i < mOutputTracks.size(); i++) { 2963 if (mOutputTracks[i]->thread() == (ThreadBase *)thread) { 2964 mOutputTracks[i]->destroy(); 2965 mOutputTracks.removeAt(i); 2966 updateWaitTime(); 2967 return; 2968 } 2969 } 2970 LOGV("removeOutputTrack(): unkonwn thread: %p", thread); 2971} 2972 2973void AudioFlinger::DuplicatingThread::updateWaitTime() 2974{ 2975 mWaitTimeMs = UINT_MAX; 2976 for (size_t i = 0; i < mOutputTracks.size(); i++) { 2977 sp<ThreadBase> strong = mOutputTracks[i]->thread().promote(); 2978 if (strong != NULL) { 2979 uint32_t waitTimeMs = (strong->frameCount() * 2 * 1000) / strong->sampleRate(); 2980 if (waitTimeMs < mWaitTimeMs) { 2981 mWaitTimeMs = waitTimeMs; 2982 } 2983 } 2984 } 2985} 2986 2987 2988bool AudioFlinger::DuplicatingThread::outputsReady(SortedVector< sp<OutputTrack> > &outputTracks) 2989{ 2990 for (size_t i = 0; i < outputTracks.size(); i++) { 2991 sp <ThreadBase> thread = outputTracks[i]->thread().promote(); 2992 if (thread == 0) { 2993 LOGW("DuplicatingThread::outputsReady() could not promote thread on output track %p", outputTracks[i].get()); 2994 return false; 2995 } 2996 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 2997 if (playbackThread->standby() && !playbackThread->isSuspended()) { 2998 LOGV("DuplicatingThread output track %p on thread %p Not Ready", outputTracks[i].get(), thread.get()); 2999 return false; 3000 } 3001 } 3002 return true; 3003} 3004 3005uint32_t AudioFlinger::DuplicatingThread::activeSleepTimeUs() 3006{ 3007 return (mWaitTimeMs * 1000) / 2; 3008} 3009 3010// ---------------------------------------------------------------------------- 3011 3012// TrackBase constructor must be called with AudioFlinger::mLock held 3013AudioFlinger::ThreadBase::TrackBase::TrackBase( 3014 const wp<ThreadBase>& thread, 3015 const sp<Client>& client, 3016 uint32_t sampleRate, 3017 uint32_t format, 3018 uint32_t channelMask, 3019 int frameCount, 3020 uint32_t flags, 3021 const sp<IMemory>& sharedBuffer, 3022 int sessionId) 3023 : RefBase(), 3024 mThread(thread), 3025 mClient(client), 3026 mCblk(0), 3027 mFrameCount(0), 3028 mState(IDLE), 3029 mClientTid(-1), 3030 mFormat(format), 3031 mFlags(flags & ~SYSTEM_FLAGS_MASK), 3032 mSessionId(sessionId) 3033{ 3034 LOGV_IF(sharedBuffer != 0, "sharedBuffer: %p, size: %d", sharedBuffer->pointer(), sharedBuffer->size()); 3035 3036 // LOGD("Creating track with %d buffers @ %d bytes", bufferCount, bufferSize); 3037 size_t size = sizeof(audio_track_cblk_t); 3038 uint8_t channelCount = popcount(channelMask); 3039 size_t bufferSize = frameCount*channelCount*sizeof(int16_t); 3040 if (sharedBuffer == 0) { 3041 size += bufferSize; 3042 } 3043 3044 if (client != NULL) { 3045 mCblkMemory = client->heap()->allocate(size); 3046 if (mCblkMemory != 0) { 3047 mCblk = static_cast<audio_track_cblk_t *>(mCblkMemory->pointer()); 3048 if (mCblk) { // construct the shared structure in-place. 3049 new(mCblk) audio_track_cblk_t(); 3050 // clear all buffers 3051 mCblk->frameCount = frameCount; 3052 mCblk->sampleRate = sampleRate; 3053 mChannelCount = channelCount; 3054 mChannelMask = channelMask; 3055 if (sharedBuffer == 0) { 3056 mBuffer = (char*)mCblk + sizeof(audio_track_cblk_t); 3057 memset(mBuffer, 0, frameCount*channelCount*sizeof(int16_t)); 3058 // Force underrun condition to avoid false underrun callback until first data is 3059 // written to buffer (other flags are cleared) 3060 mCblk->flags = CBLK_UNDERRUN_ON; 3061 } else { 3062 mBuffer = sharedBuffer->pointer(); 3063 } 3064 mBufferEnd = (uint8_t *)mBuffer + bufferSize; 3065 } 3066 } else { 3067 LOGE("not enough memory for AudioTrack size=%u", size); 3068 client->heap()->dump("AudioTrack"); 3069 return; 3070 } 3071 } else { 3072 mCblk = (audio_track_cblk_t *)(new uint8_t[size]); 3073 if (mCblk) { // construct the shared structure in-place. 3074 new(mCblk) audio_track_cblk_t(); 3075 // clear all buffers 3076 mCblk->frameCount = frameCount; 3077 mCblk->sampleRate = sampleRate; 3078 mChannelCount = channelCount; 3079 mChannelMask = channelMask; 3080 mBuffer = (char*)mCblk + sizeof(audio_track_cblk_t); 3081 memset(mBuffer, 0, frameCount*channelCount*sizeof(int16_t)); 3082 // Force underrun condition to avoid false underrun callback until first data is 3083 // written to buffer (other flags are cleared) 3084 mCblk->flags = CBLK_UNDERRUN_ON; 3085 mBufferEnd = (uint8_t *)mBuffer + bufferSize; 3086 } 3087 } 3088} 3089 3090AudioFlinger::ThreadBase::TrackBase::~TrackBase() 3091{ 3092 if (mCblk) { 3093 mCblk->~audio_track_cblk_t(); // destroy our shared-structure. 3094 if (mClient == NULL) { 3095 delete mCblk; 3096 } 3097 } 3098 mCblkMemory.clear(); // and free the shared memory 3099 if (mClient != NULL) { 3100 Mutex::Autolock _l(mClient->audioFlinger()->mLock); 3101 mClient.clear(); 3102 } 3103} 3104 3105void AudioFlinger::ThreadBase::TrackBase::releaseBuffer(AudioBufferProvider::Buffer* buffer) 3106{ 3107 buffer->raw = 0; 3108 mFrameCount = buffer->frameCount; 3109 step(); 3110 buffer->frameCount = 0; 3111} 3112 3113bool AudioFlinger::ThreadBase::TrackBase::step() { 3114 bool result; 3115 audio_track_cblk_t* cblk = this->cblk(); 3116 3117 result = cblk->stepServer(mFrameCount); 3118 if (!result) { 3119 LOGV("stepServer failed acquiring cblk mutex"); 3120 mFlags |= STEPSERVER_FAILED; 3121 } 3122 return result; 3123} 3124 3125void AudioFlinger::ThreadBase::TrackBase::reset() { 3126 audio_track_cblk_t* cblk = this->cblk(); 3127 3128 cblk->user = 0; 3129 cblk->server = 0; 3130 cblk->userBase = 0; 3131 cblk->serverBase = 0; 3132 mFlags &= (uint32_t)(~SYSTEM_FLAGS_MASK); 3133 LOGV("TrackBase::reset"); 3134} 3135 3136sp<IMemory> AudioFlinger::ThreadBase::TrackBase::getCblk() const 3137{ 3138 return mCblkMemory; 3139} 3140 3141int AudioFlinger::ThreadBase::TrackBase::sampleRate() const { 3142 return (int)mCblk->sampleRate; 3143} 3144 3145int AudioFlinger::ThreadBase::TrackBase::channelCount() const { 3146 return (const int)mChannelCount; 3147} 3148 3149uint32_t AudioFlinger::ThreadBase::TrackBase::channelMask() const { 3150 return mChannelMask; 3151} 3152 3153void* AudioFlinger::ThreadBase::TrackBase::getBuffer(uint32_t offset, uint32_t frames) const { 3154 audio_track_cblk_t* cblk = this->cblk(); 3155 int8_t *bufferStart = (int8_t *)mBuffer + (offset-cblk->serverBase)*cblk->frameSize; 3156 int8_t *bufferEnd = bufferStart + frames * cblk->frameSize; 3157 3158 // Check validity of returned pointer in case the track control block would have been corrupted. 3159 if (bufferStart < mBuffer || bufferStart > bufferEnd || bufferEnd > mBufferEnd || 3160 ((unsigned long)bufferStart & (unsigned long)(cblk->frameSize - 1))) { 3161 LOGE("TrackBase::getBuffer buffer out of range:\n start: %p, end %p , mBuffer %p mBufferEnd %p\n \ 3162 server %d, serverBase %d, user %d, userBase %d", 3163 bufferStart, bufferEnd, mBuffer, mBufferEnd, 3164 cblk->server, cblk->serverBase, cblk->user, cblk->userBase); 3165 return 0; 3166 } 3167 3168 return bufferStart; 3169} 3170 3171// ---------------------------------------------------------------------------- 3172 3173// Track constructor must be called with AudioFlinger::mLock and ThreadBase::mLock held 3174AudioFlinger::PlaybackThread::Track::Track( 3175 const wp<ThreadBase>& thread, 3176 const sp<Client>& client, 3177 int streamType, 3178 uint32_t sampleRate, 3179 uint32_t format, 3180 uint32_t channelMask, 3181 int frameCount, 3182 const sp<IMemory>& sharedBuffer, 3183 int sessionId) 3184 : TrackBase(thread, client, sampleRate, format, channelMask, frameCount, 0, sharedBuffer, sessionId), 3185 mMute(false), mSharedBuffer(sharedBuffer), mName(-1), mMainBuffer(NULL), mAuxBuffer(NULL), 3186 mAuxEffectId(0), mHasVolumeController(false) 3187{ 3188 if (mCblk != NULL) { 3189 sp<ThreadBase> baseThread = thread.promote(); 3190 if (baseThread != 0) { 3191 PlaybackThread *playbackThread = (PlaybackThread *)baseThread.get(); 3192 mName = playbackThread->getTrackName_l(); 3193 mMainBuffer = playbackThread->mixBuffer(); 3194 } 3195 LOGV("Track constructor name %d, calling thread %d", mName, IPCThreadState::self()->getCallingPid()); 3196 if (mName < 0) { 3197 LOGE("no more track names available"); 3198 } 3199 mVolume[0] = 1.0f; 3200 mVolume[1] = 1.0f; 3201 mStreamType = streamType; 3202 // NOTE: audio_track_cblk_t::frameSize for 8 bit PCM data is based on a sample size of 3203 // 16 bit because data is converted to 16 bit before being stored in buffer by AudioTrack 3204 mCblk->frameSize = audio_is_linear_pcm(format) ? mChannelCount * sizeof(int16_t) : sizeof(uint8_t); 3205 } 3206} 3207 3208AudioFlinger::PlaybackThread::Track::~Track() 3209{ 3210 LOGV("PlaybackThread::Track destructor"); 3211 sp<ThreadBase> thread = mThread.promote(); 3212 if (thread != 0) { 3213 Mutex::Autolock _l(thread->mLock); 3214 mState = TERMINATED; 3215 } 3216} 3217 3218void AudioFlinger::PlaybackThread::Track::destroy() 3219{ 3220 // NOTE: destroyTrack_l() can remove a strong reference to this Track 3221 // by removing it from mTracks vector, so there is a risk that this Tracks's 3222 // desctructor is called. As the destructor needs to lock mLock, 3223 // we must acquire a strong reference on this Track before locking mLock 3224 // here so that the destructor is called only when exiting this function. 3225 // On the other hand, as long as Track::destroy() is only called by 3226 // TrackHandle destructor, the TrackHandle still holds a strong ref on 3227 // this Track with its member mTrack. 3228 sp<Track> keep(this); 3229 { // scope for mLock 3230 sp<ThreadBase> thread = mThread.promote(); 3231 if (thread != 0) { 3232 if (!isOutputTrack()) { 3233 if (mState == ACTIVE || mState == RESUMING) { 3234 AudioSystem::stopOutput(thread->id(), 3235 (audio_stream_type_t)mStreamType, 3236 mSessionId); 3237 3238 // to track the speaker usage 3239 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop); 3240 } 3241 AudioSystem::releaseOutput(thread->id()); 3242 } 3243 Mutex::Autolock _l(thread->mLock); 3244 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3245 playbackThread->destroyTrack_l(this); 3246 } 3247 } 3248} 3249 3250void AudioFlinger::PlaybackThread::Track::dump(char* buffer, size_t size) 3251{ 3252 snprintf(buffer, size, " %05d %05d %03u %03u 0x%08x %05u %04u %1d %1d %1d %05u %05u %05u 0x%08x 0x%08x 0x%08x 0x%08x\n", 3253 mName - AudioMixer::TRACK0, 3254 (mClient == NULL) ? getpid() : mClient->pid(), 3255 mStreamType, 3256 mFormat, 3257 mChannelMask, 3258 mSessionId, 3259 mFrameCount, 3260 mState, 3261 mMute, 3262 mFillingUpStatus, 3263 mCblk->sampleRate, 3264 mCblk->volume[0], 3265 mCblk->volume[1], 3266 mCblk->server, 3267 mCblk->user, 3268 (int)mMainBuffer, 3269 (int)mAuxBuffer); 3270} 3271 3272status_t AudioFlinger::PlaybackThread::Track::getNextBuffer(AudioBufferProvider::Buffer* buffer) 3273{ 3274 audio_track_cblk_t* cblk = this->cblk(); 3275 uint32_t framesReady; 3276 uint32_t framesReq = buffer->frameCount; 3277 3278 // Check if last stepServer failed, try to step now 3279 if (mFlags & TrackBase::STEPSERVER_FAILED) { 3280 if (!step()) goto getNextBuffer_exit; 3281 LOGV("stepServer recovered"); 3282 mFlags &= ~TrackBase::STEPSERVER_FAILED; 3283 } 3284 3285 framesReady = cblk->framesReady(); 3286 3287 if (LIKELY(framesReady)) { 3288 uint32_t s = cblk->server; 3289 uint32_t bufferEnd = cblk->serverBase + cblk->frameCount; 3290 3291 bufferEnd = (cblk->loopEnd < bufferEnd) ? cblk->loopEnd : bufferEnd; 3292 if (framesReq > framesReady) { 3293 framesReq = framesReady; 3294 } 3295 if (s + framesReq > bufferEnd) { 3296 framesReq = bufferEnd - s; 3297 } 3298 3299 buffer->raw = getBuffer(s, framesReq); 3300 if (buffer->raw == 0) goto getNextBuffer_exit; 3301 3302 buffer->frameCount = framesReq; 3303 return NO_ERROR; 3304 } 3305 3306getNextBuffer_exit: 3307 buffer->raw = 0; 3308 buffer->frameCount = 0; 3309 LOGV("getNextBuffer() no more data for track %d on thread %p", mName, mThread.unsafe_get()); 3310 return NOT_ENOUGH_DATA; 3311} 3312 3313bool AudioFlinger::PlaybackThread::Track::isReady() const { 3314 if (mFillingUpStatus != FS_FILLING || isStopped() || isPausing()) return true; 3315 3316 if (mCblk->framesReady() >= mCblk->frameCount || 3317 (mCblk->flags & CBLK_FORCEREADY_MSK)) { 3318 mFillingUpStatus = FS_FILLED; 3319 android_atomic_and(~CBLK_FORCEREADY_MSK, &mCblk->flags); 3320 return true; 3321 } 3322 return false; 3323} 3324 3325status_t AudioFlinger::PlaybackThread::Track::start() 3326{ 3327 status_t status = NO_ERROR; 3328 LOGV("start(%d), calling thread %d session %d", 3329 mName, IPCThreadState::self()->getCallingPid(), mSessionId); 3330 sp<ThreadBase> thread = mThread.promote(); 3331 if (thread != 0) { 3332 Mutex::Autolock _l(thread->mLock); 3333 int state = mState; 3334 // here the track could be either new, or restarted 3335 // in both cases "unstop" the track 3336 if (mState == PAUSED) { 3337 mState = TrackBase::RESUMING; 3338 LOGV("PAUSED => RESUMING (%d) on thread %p", mName, this); 3339 } else { 3340 mState = TrackBase::ACTIVE; 3341 LOGV("? => ACTIVE (%d) on thread %p", mName, this); 3342 } 3343 3344 if (!isOutputTrack() && state != ACTIVE && state != RESUMING) { 3345 thread->mLock.unlock(); 3346 status = AudioSystem::startOutput(thread->id(), 3347 (audio_stream_type_t)mStreamType, 3348 mSessionId); 3349 thread->mLock.lock(); 3350 3351 // to track the speaker usage 3352 if (status == NO_ERROR) { 3353 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStart); 3354 } 3355 } 3356 if (status == NO_ERROR) { 3357 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3358 playbackThread->addTrack_l(this); 3359 } else { 3360 mState = state; 3361 } 3362 } else { 3363 status = BAD_VALUE; 3364 } 3365 return status; 3366} 3367 3368void AudioFlinger::PlaybackThread::Track::stop() 3369{ 3370 LOGV("stop(%d), calling thread %d", mName, IPCThreadState::self()->getCallingPid()); 3371 sp<ThreadBase> thread = mThread.promote(); 3372 if (thread != 0) { 3373 Mutex::Autolock _l(thread->mLock); 3374 int state = mState; 3375 if (mState > STOPPED) { 3376 mState = STOPPED; 3377 // If the track is not active (PAUSED and buffers full), flush buffers 3378 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3379 if (playbackThread->mActiveTracks.indexOf(this) < 0) { 3380 reset(); 3381 } 3382 LOGV("(> STOPPED) => STOPPED (%d) on thread %p", mName, playbackThread); 3383 } 3384 if (!isOutputTrack() && (state == ACTIVE || state == RESUMING)) { 3385 thread->mLock.unlock(); 3386 AudioSystem::stopOutput(thread->id(), 3387 (audio_stream_type_t)mStreamType, 3388 mSessionId); 3389 thread->mLock.lock(); 3390 3391 // to track the speaker usage 3392 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop); 3393 } 3394 } 3395} 3396 3397void AudioFlinger::PlaybackThread::Track::pause() 3398{ 3399 LOGV("pause(%d), calling thread %d", mName, IPCThreadState::self()->getCallingPid()); 3400 sp<ThreadBase> thread = mThread.promote(); 3401 if (thread != 0) { 3402 Mutex::Autolock _l(thread->mLock); 3403 if (mState == ACTIVE || mState == RESUMING) { 3404 mState = PAUSING; 3405 LOGV("ACTIVE/RESUMING => PAUSING (%d) on thread %p", mName, thread.get()); 3406 if (!isOutputTrack()) { 3407 thread->mLock.unlock(); 3408 AudioSystem::stopOutput(thread->id(), 3409 (audio_stream_type_t)mStreamType, 3410 mSessionId); 3411 thread->mLock.lock(); 3412 3413 // to track the speaker usage 3414 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop); 3415 } 3416 } 3417 } 3418} 3419 3420void AudioFlinger::PlaybackThread::Track::flush() 3421{ 3422 LOGV("flush(%d)", mName); 3423 sp<ThreadBase> thread = mThread.promote(); 3424 if (thread != 0) { 3425 Mutex::Autolock _l(thread->mLock); 3426 if (mState != STOPPED && mState != PAUSED && mState != PAUSING) { 3427 return; 3428 } 3429 // No point remaining in PAUSED state after a flush => go to 3430 // STOPPED state 3431 mState = STOPPED; 3432 3433 // do not reset the track if it is still in the process of being stopped or paused. 3434 // this will be done by prepareTracks_l() when the track is stopped. 3435 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3436 if (playbackThread->mActiveTracks.indexOf(this) < 0) { 3437 reset(); 3438 } 3439 } 3440} 3441 3442void AudioFlinger::PlaybackThread::Track::reset() 3443{ 3444 // Do not reset twice to avoid discarding data written just after a flush and before 3445 // the audioflinger thread detects the track is stopped. 3446 if (!mResetDone) { 3447 TrackBase::reset(); 3448 // Force underrun condition to avoid false underrun callback until first data is 3449 // written to buffer 3450 android_atomic_and(~CBLK_FORCEREADY_MSK, &mCblk->flags); 3451 android_atomic_or(CBLK_UNDERRUN_ON, &mCblk->flags); 3452 mFillingUpStatus = FS_FILLING; 3453 mResetDone = true; 3454 } 3455} 3456 3457void AudioFlinger::PlaybackThread::Track::mute(bool muted) 3458{ 3459 mMute = muted; 3460} 3461 3462void AudioFlinger::PlaybackThread::Track::setVolume(float left, float right) 3463{ 3464 mVolume[0] = left; 3465 mVolume[1] = right; 3466} 3467 3468status_t AudioFlinger::PlaybackThread::Track::attachAuxEffect(int EffectId) 3469{ 3470 status_t status = DEAD_OBJECT; 3471 sp<ThreadBase> thread = mThread.promote(); 3472 if (thread != 0) { 3473 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3474 status = playbackThread->attachAuxEffect(this, EffectId); 3475 } 3476 return status; 3477} 3478 3479void AudioFlinger::PlaybackThread::Track::setAuxBuffer(int EffectId, int32_t *buffer) 3480{ 3481 mAuxEffectId = EffectId; 3482 mAuxBuffer = buffer; 3483} 3484 3485// ---------------------------------------------------------------------------- 3486 3487// RecordTrack constructor must be called with AudioFlinger::mLock held 3488AudioFlinger::RecordThread::RecordTrack::RecordTrack( 3489 const wp<ThreadBase>& thread, 3490 const sp<Client>& client, 3491 uint32_t sampleRate, 3492 uint32_t format, 3493 uint32_t channelMask, 3494 int frameCount, 3495 uint32_t flags, 3496 int sessionId) 3497 : TrackBase(thread, client, sampleRate, format, 3498 channelMask, frameCount, flags, 0, sessionId), 3499 mOverflow(false) 3500{ 3501 if (mCblk != NULL) { 3502 LOGV("RecordTrack constructor, size %d", (int)mBufferEnd - (int)mBuffer); 3503 if (format == AUDIO_FORMAT_PCM_16_BIT) { 3504 mCblk->frameSize = mChannelCount * sizeof(int16_t); 3505 } else if (format == AUDIO_FORMAT_PCM_8_BIT) { 3506 mCblk->frameSize = mChannelCount * sizeof(int8_t); 3507 } else { 3508 mCblk->frameSize = sizeof(int8_t); 3509 } 3510 } 3511} 3512 3513AudioFlinger::RecordThread::RecordTrack::~RecordTrack() 3514{ 3515 sp<ThreadBase> thread = mThread.promote(); 3516 if (thread != 0) { 3517 AudioSystem::releaseInput(thread->id()); 3518 } 3519} 3520 3521status_t AudioFlinger::RecordThread::RecordTrack::getNextBuffer(AudioBufferProvider::Buffer* buffer) 3522{ 3523 audio_track_cblk_t* cblk = this->cblk(); 3524 uint32_t framesAvail; 3525 uint32_t framesReq = buffer->frameCount; 3526 3527 // Check if last stepServer failed, try to step now 3528 if (mFlags & TrackBase::STEPSERVER_FAILED) { 3529 if (!step()) goto getNextBuffer_exit; 3530 LOGV("stepServer recovered"); 3531 mFlags &= ~TrackBase::STEPSERVER_FAILED; 3532 } 3533 3534 framesAvail = cblk->framesAvailable_l(); 3535 3536 if (LIKELY(framesAvail)) { 3537 uint32_t s = cblk->server; 3538 uint32_t bufferEnd = cblk->serverBase + cblk->frameCount; 3539 3540 if (framesReq > framesAvail) { 3541 framesReq = framesAvail; 3542 } 3543 if (s + framesReq > bufferEnd) { 3544 framesReq = bufferEnd - s; 3545 } 3546 3547 buffer->raw = getBuffer(s, framesReq); 3548 if (buffer->raw == 0) goto getNextBuffer_exit; 3549 3550 buffer->frameCount = framesReq; 3551 return NO_ERROR; 3552 } 3553 3554getNextBuffer_exit: 3555 buffer->raw = 0; 3556 buffer->frameCount = 0; 3557 return NOT_ENOUGH_DATA; 3558} 3559 3560status_t AudioFlinger::RecordThread::RecordTrack::start() 3561{ 3562 sp<ThreadBase> thread = mThread.promote(); 3563 if (thread != 0) { 3564 RecordThread *recordThread = (RecordThread *)thread.get(); 3565 return recordThread->start(this); 3566 } else { 3567 return BAD_VALUE; 3568 } 3569} 3570 3571void AudioFlinger::RecordThread::RecordTrack::stop() 3572{ 3573 sp<ThreadBase> thread = mThread.promote(); 3574 if (thread != 0) { 3575 RecordThread *recordThread = (RecordThread *)thread.get(); 3576 recordThread->stop(this); 3577 TrackBase::reset(); 3578 // Force overerrun condition to avoid false overrun callback until first data is 3579 // read from buffer 3580 android_atomic_or(CBLK_UNDERRUN_ON, &mCblk->flags); 3581 } 3582} 3583 3584void AudioFlinger::RecordThread::RecordTrack::dump(char* buffer, size_t size) 3585{ 3586 snprintf(buffer, size, " %05d %03u 0x%08x %05d %04u %01d %05u %08x %08x\n", 3587 (mClient == NULL) ? getpid() : mClient->pid(), 3588 mFormat, 3589 mChannelMask, 3590 mSessionId, 3591 mFrameCount, 3592 mState, 3593 mCblk->sampleRate, 3594 mCblk->server, 3595 mCblk->user); 3596} 3597 3598 3599// ---------------------------------------------------------------------------- 3600 3601AudioFlinger::PlaybackThread::OutputTrack::OutputTrack( 3602 const wp<ThreadBase>& thread, 3603 DuplicatingThread *sourceThread, 3604 uint32_t sampleRate, 3605 uint32_t format, 3606 uint32_t channelMask, 3607 int frameCount) 3608 : Track(thread, NULL, AUDIO_STREAM_CNT, sampleRate, format, channelMask, frameCount, NULL, 0), 3609 mActive(false), mSourceThread(sourceThread) 3610{ 3611 3612 PlaybackThread *playbackThread = (PlaybackThread *)thread.unsafe_get(); 3613 if (mCblk != NULL) { 3614 mCblk->flags |= CBLK_DIRECTION_OUT; 3615 mCblk->buffers = (char*)mCblk + sizeof(audio_track_cblk_t); 3616 mCblk->volume[0] = mCblk->volume[1] = 0x1000; 3617 mOutBuffer.frameCount = 0; 3618 playbackThread->mTracks.add(this); 3619 LOGV("OutputTrack constructor mCblk %p, mBuffer %p, mCblk->buffers %p, " \ 3620 "mCblk->frameCount %d, mCblk->sampleRate %d, mChannelMask 0x%08x mBufferEnd %p", 3621 mCblk, mBuffer, mCblk->buffers, 3622 mCblk->frameCount, mCblk->sampleRate, mChannelMask, mBufferEnd); 3623 } else { 3624 LOGW("Error creating output track on thread %p", playbackThread); 3625 } 3626} 3627 3628AudioFlinger::PlaybackThread::OutputTrack::~OutputTrack() 3629{ 3630 clearBufferQueue(); 3631} 3632 3633status_t AudioFlinger::PlaybackThread::OutputTrack::start() 3634{ 3635 status_t status = Track::start(); 3636 if (status != NO_ERROR) { 3637 return status; 3638 } 3639 3640 mActive = true; 3641 mRetryCount = 127; 3642 return status; 3643} 3644 3645void AudioFlinger::PlaybackThread::OutputTrack::stop() 3646{ 3647 Track::stop(); 3648 clearBufferQueue(); 3649 mOutBuffer.frameCount = 0; 3650 mActive = false; 3651} 3652 3653bool AudioFlinger::PlaybackThread::OutputTrack::write(int16_t* data, uint32_t frames) 3654{ 3655 Buffer *pInBuffer; 3656 Buffer inBuffer; 3657 uint32_t channelCount = mChannelCount; 3658 bool outputBufferFull = false; 3659 inBuffer.frameCount = frames; 3660 inBuffer.i16 = data; 3661 3662 uint32_t waitTimeLeftMs = mSourceThread->waitTimeMs(); 3663 3664 if (!mActive && frames != 0) { 3665 start(); 3666 sp<ThreadBase> thread = mThread.promote(); 3667 if (thread != 0) { 3668 MixerThread *mixerThread = (MixerThread *)thread.get(); 3669 if (mCblk->frameCount > frames){ 3670 if (mBufferQueue.size() < kMaxOverFlowBuffers) { 3671 uint32_t startFrames = (mCblk->frameCount - frames); 3672 pInBuffer = new Buffer; 3673 pInBuffer->mBuffer = new int16_t[startFrames * channelCount]; 3674 pInBuffer->frameCount = startFrames; 3675 pInBuffer->i16 = pInBuffer->mBuffer; 3676 memset(pInBuffer->raw, 0, startFrames * channelCount * sizeof(int16_t)); 3677 mBufferQueue.add(pInBuffer); 3678 } else { 3679 LOGW ("OutputTrack::write() %p no more buffers in queue", this); 3680 } 3681 } 3682 } 3683 } 3684 3685 while (waitTimeLeftMs) { 3686 // First write pending buffers, then new data 3687 if (mBufferQueue.size()) { 3688 pInBuffer = mBufferQueue.itemAt(0); 3689 } else { 3690 pInBuffer = &inBuffer; 3691 } 3692 3693 if (pInBuffer->frameCount == 0) { 3694 break; 3695 } 3696 3697 if (mOutBuffer.frameCount == 0) { 3698 mOutBuffer.frameCount = pInBuffer->frameCount; 3699 nsecs_t startTime = systemTime(); 3700 if (obtainBuffer(&mOutBuffer, waitTimeLeftMs) == (status_t)AudioTrack::NO_MORE_BUFFERS) { 3701 LOGV ("OutputTrack::write() %p thread %p no more output buffers", this, mThread.unsafe_get()); 3702 outputBufferFull = true; 3703 break; 3704 } 3705 uint32_t waitTimeMs = (uint32_t)ns2ms(systemTime() - startTime); 3706 if (waitTimeLeftMs >= waitTimeMs) { 3707 waitTimeLeftMs -= waitTimeMs; 3708 } else { 3709 waitTimeLeftMs = 0; 3710 } 3711 } 3712 3713 uint32_t outFrames = pInBuffer->frameCount > mOutBuffer.frameCount ? mOutBuffer.frameCount : pInBuffer->frameCount; 3714 memcpy(mOutBuffer.raw, pInBuffer->raw, outFrames * channelCount * sizeof(int16_t)); 3715 mCblk->stepUser(outFrames); 3716 pInBuffer->frameCount -= outFrames; 3717 pInBuffer->i16 += outFrames * channelCount; 3718 mOutBuffer.frameCount -= outFrames; 3719 mOutBuffer.i16 += outFrames * channelCount; 3720 3721 if (pInBuffer->frameCount == 0) { 3722 if (mBufferQueue.size()) { 3723 mBufferQueue.removeAt(0); 3724 delete [] pInBuffer->mBuffer; 3725 delete pInBuffer; 3726 LOGV("OutputTrack::write() %p thread %p released overflow buffer %d", this, mThread.unsafe_get(), mBufferQueue.size()); 3727 } else { 3728 break; 3729 } 3730 } 3731 } 3732 3733 // If we could not write all frames, allocate a buffer and queue it for next time. 3734 if (inBuffer.frameCount) { 3735 sp<ThreadBase> thread = mThread.promote(); 3736 if (thread != 0 && !thread->standby()) { 3737 if (mBufferQueue.size() < kMaxOverFlowBuffers) { 3738 pInBuffer = new Buffer; 3739 pInBuffer->mBuffer = new int16_t[inBuffer.frameCount * channelCount]; 3740 pInBuffer->frameCount = inBuffer.frameCount; 3741 pInBuffer->i16 = pInBuffer->mBuffer; 3742 memcpy(pInBuffer->raw, inBuffer.raw, inBuffer.frameCount * channelCount * sizeof(int16_t)); 3743 mBufferQueue.add(pInBuffer); 3744 LOGV("OutputTrack::write() %p thread %p adding overflow buffer %d", this, mThread.unsafe_get(), mBufferQueue.size()); 3745 } else { 3746 LOGW("OutputTrack::write() %p thread %p no more overflow buffers", mThread.unsafe_get(), this); 3747 } 3748 } 3749 } 3750 3751 // Calling write() with a 0 length buffer, means that no more data will be written: 3752 // If no more buffers are pending, fill output track buffer to make sure it is started 3753 // by output mixer. 3754 if (frames == 0 && mBufferQueue.size() == 0) { 3755 if (mCblk->user < mCblk->frameCount) { 3756 frames = mCblk->frameCount - mCblk->user; 3757 pInBuffer = new Buffer; 3758 pInBuffer->mBuffer = new int16_t[frames * channelCount]; 3759 pInBuffer->frameCount = frames; 3760 pInBuffer->i16 = pInBuffer->mBuffer; 3761 memset(pInBuffer->raw, 0, frames * channelCount * sizeof(int16_t)); 3762 mBufferQueue.add(pInBuffer); 3763 } else if (mActive) { 3764 stop(); 3765 } 3766 } 3767 3768 return outputBufferFull; 3769} 3770 3771status_t AudioFlinger::PlaybackThread::OutputTrack::obtainBuffer(AudioBufferProvider::Buffer* buffer, uint32_t waitTimeMs) 3772{ 3773 int active; 3774 status_t result; 3775 audio_track_cblk_t* cblk = mCblk; 3776 uint32_t framesReq = buffer->frameCount; 3777 3778// LOGV("OutputTrack::obtainBuffer user %d, server %d", cblk->user, cblk->server); 3779 buffer->frameCount = 0; 3780 3781 uint32_t framesAvail = cblk->framesAvailable(); 3782 3783 3784 if (framesAvail == 0) { 3785 Mutex::Autolock _l(cblk->lock); 3786 goto start_loop_here; 3787 while (framesAvail == 0) { 3788 active = mActive; 3789 if (UNLIKELY(!active)) { 3790 LOGV("Not active and NO_MORE_BUFFERS"); 3791 return AudioTrack::NO_MORE_BUFFERS; 3792 } 3793 result = cblk->cv.waitRelative(cblk->lock, milliseconds(waitTimeMs)); 3794 if (result != NO_ERROR) { 3795 return AudioTrack::NO_MORE_BUFFERS; 3796 } 3797 // read the server count again 3798 start_loop_here: 3799 framesAvail = cblk->framesAvailable_l(); 3800 } 3801 } 3802 3803// if (framesAvail < framesReq) { 3804// return AudioTrack::NO_MORE_BUFFERS; 3805// } 3806 3807 if (framesReq > framesAvail) { 3808 framesReq = framesAvail; 3809 } 3810 3811 uint32_t u = cblk->user; 3812 uint32_t bufferEnd = cblk->userBase + cblk->frameCount; 3813 3814 if (u + framesReq > bufferEnd) { 3815 framesReq = bufferEnd - u; 3816 } 3817 3818 buffer->frameCount = framesReq; 3819 buffer->raw = (void *)cblk->buffer(u); 3820 return NO_ERROR; 3821} 3822 3823 3824void AudioFlinger::PlaybackThread::OutputTrack::clearBufferQueue() 3825{ 3826 size_t size = mBufferQueue.size(); 3827 Buffer *pBuffer; 3828 3829 for (size_t i = 0; i < size; i++) { 3830 pBuffer = mBufferQueue.itemAt(i); 3831 delete [] pBuffer->mBuffer; 3832 delete pBuffer; 3833 } 3834 mBufferQueue.clear(); 3835} 3836 3837// ---------------------------------------------------------------------------- 3838 3839AudioFlinger::Client::Client(const sp<AudioFlinger>& audioFlinger, pid_t pid) 3840 : RefBase(), 3841 mAudioFlinger(audioFlinger), 3842 mMemoryDealer(new MemoryDealer(1024*1024, "AudioFlinger::Client")), 3843 mPid(pid) 3844{ 3845 // 1 MB of address space is good for 32 tracks, 8 buffers each, 4 KB/buffer 3846} 3847 3848// Client destructor must be called with AudioFlinger::mLock held 3849AudioFlinger::Client::~Client() 3850{ 3851 mAudioFlinger->removeClient_l(mPid); 3852} 3853 3854const sp<MemoryDealer>& AudioFlinger::Client::heap() const 3855{ 3856 return mMemoryDealer; 3857} 3858 3859// ---------------------------------------------------------------------------- 3860 3861AudioFlinger::NotificationClient::NotificationClient(const sp<AudioFlinger>& audioFlinger, 3862 const sp<IAudioFlingerClient>& client, 3863 pid_t pid) 3864 : mAudioFlinger(audioFlinger), mPid(pid), mClient(client) 3865{ 3866} 3867 3868AudioFlinger::NotificationClient::~NotificationClient() 3869{ 3870 mClient.clear(); 3871} 3872 3873void AudioFlinger::NotificationClient::binderDied(const wp<IBinder>& who) 3874{ 3875 sp<NotificationClient> keep(this); 3876 { 3877 mAudioFlinger->removeNotificationClient(mPid); 3878 } 3879} 3880 3881// ---------------------------------------------------------------------------- 3882 3883AudioFlinger::TrackHandle::TrackHandle(const sp<AudioFlinger::PlaybackThread::Track>& track) 3884 : BnAudioTrack(), 3885 mTrack(track) 3886{ 3887} 3888 3889AudioFlinger::TrackHandle::~TrackHandle() { 3890 // just stop the track on deletion, associated resources 3891 // will be freed from the main thread once all pending buffers have 3892 // been played. Unless it's not in the active track list, in which 3893 // case we free everything now... 3894 mTrack->destroy(); 3895} 3896 3897status_t AudioFlinger::TrackHandle::start() { 3898 return mTrack->start(); 3899} 3900 3901void AudioFlinger::TrackHandle::stop() { 3902 mTrack->stop(); 3903} 3904 3905void AudioFlinger::TrackHandle::flush() { 3906 mTrack->flush(); 3907} 3908 3909void AudioFlinger::TrackHandle::mute(bool e) { 3910 mTrack->mute(e); 3911} 3912 3913void AudioFlinger::TrackHandle::pause() { 3914 mTrack->pause(); 3915} 3916 3917void AudioFlinger::TrackHandle::setVolume(float left, float right) { 3918 mTrack->setVolume(left, right); 3919} 3920 3921sp<IMemory> AudioFlinger::TrackHandle::getCblk() const { 3922 return mTrack->getCblk(); 3923} 3924 3925status_t AudioFlinger::TrackHandle::attachAuxEffect(int EffectId) 3926{ 3927 return mTrack->attachAuxEffect(EffectId); 3928} 3929 3930status_t AudioFlinger::TrackHandle::onTransact( 3931 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 3932{ 3933 return BnAudioTrack::onTransact(code, data, reply, flags); 3934} 3935 3936// ---------------------------------------------------------------------------- 3937 3938sp<IAudioRecord> AudioFlinger::openRecord( 3939 pid_t pid, 3940 int input, 3941 uint32_t sampleRate, 3942 uint32_t format, 3943 uint32_t channelMask, 3944 int frameCount, 3945 uint32_t flags, 3946 int *sessionId, 3947 status_t *status) 3948{ 3949 sp<RecordThread::RecordTrack> recordTrack; 3950 sp<RecordHandle> recordHandle; 3951 sp<Client> client; 3952 wp<Client> wclient; 3953 status_t lStatus; 3954 RecordThread *thread; 3955 size_t inFrameCount; 3956 int lSessionId; 3957 3958 // check calling permissions 3959 if (!recordingAllowed()) { 3960 lStatus = PERMISSION_DENIED; 3961 goto Exit; 3962 } 3963 3964 // add client to list 3965 { // scope for mLock 3966 Mutex::Autolock _l(mLock); 3967 thread = checkRecordThread_l(input); 3968 if (thread == NULL) { 3969 lStatus = BAD_VALUE; 3970 goto Exit; 3971 } 3972 3973 wclient = mClients.valueFor(pid); 3974 if (wclient != NULL) { 3975 client = wclient.promote(); 3976 } else { 3977 client = new Client(this, pid); 3978 mClients.add(pid, client); 3979 } 3980 3981 // If no audio session id is provided, create one here 3982 if (sessionId != NULL && *sessionId != AUDIO_SESSION_OUTPUT_MIX) { 3983 lSessionId = *sessionId; 3984 } else { 3985 lSessionId = nextUniqueId(); 3986 if (sessionId != NULL) { 3987 *sessionId = lSessionId; 3988 } 3989 } 3990 // create new record track. The record track uses one track in mHardwareMixerThread by convention. 3991 recordTrack = thread->createRecordTrack_l(client, 3992 sampleRate, 3993 format, 3994 channelMask, 3995 frameCount, 3996 flags, 3997 lSessionId, 3998 &lStatus); 3999 } 4000 if (lStatus != NO_ERROR) { 4001 // remove local strong reference to Client before deleting the RecordTrack so that the Client 4002 // destructor is called by the TrackBase destructor with mLock held 4003 client.clear(); 4004 recordTrack.clear(); 4005 goto Exit; 4006 } 4007 4008 // return to handle to client 4009 recordHandle = new RecordHandle(recordTrack); 4010 lStatus = NO_ERROR; 4011 4012Exit: 4013 if (status) { 4014 *status = lStatus; 4015 } 4016 return recordHandle; 4017} 4018 4019// ---------------------------------------------------------------------------- 4020 4021AudioFlinger::RecordHandle::RecordHandle(const sp<AudioFlinger::RecordThread::RecordTrack>& recordTrack) 4022 : BnAudioRecord(), 4023 mRecordTrack(recordTrack) 4024{ 4025} 4026 4027AudioFlinger::RecordHandle::~RecordHandle() { 4028 stop(); 4029} 4030 4031status_t AudioFlinger::RecordHandle::start() { 4032 LOGV("RecordHandle::start()"); 4033 return mRecordTrack->start(); 4034} 4035 4036void AudioFlinger::RecordHandle::stop() { 4037 LOGV("RecordHandle::stop()"); 4038 mRecordTrack->stop(); 4039} 4040 4041sp<IMemory> AudioFlinger::RecordHandle::getCblk() const { 4042 return mRecordTrack->getCblk(); 4043} 4044 4045status_t AudioFlinger::RecordHandle::onTransact( 4046 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 4047{ 4048 return BnAudioRecord::onTransact(code, data, reply, flags); 4049} 4050 4051// ---------------------------------------------------------------------------- 4052 4053AudioFlinger::RecordThread::RecordThread(const sp<AudioFlinger>& audioFlinger, 4054 AudioStreamIn *input, 4055 uint32_t sampleRate, 4056 uint32_t channels, 4057 int id, 4058 uint32_t device) : 4059 ThreadBase(audioFlinger, id, device), 4060 mInput(input), mTrack(NULL), mResampler(0), mRsmpOutBuffer(0), mRsmpInBuffer(0) 4061{ 4062 mType = ThreadBase::RECORD; 4063 4064 snprintf(mName, kNameLength, "AudioIn_%d", id); 4065 4066 mReqChannelCount = popcount(channels); 4067 mReqSampleRate = sampleRate; 4068 readInputParameters(); 4069} 4070 4071 4072AudioFlinger::RecordThread::~RecordThread() 4073{ 4074 delete[] mRsmpInBuffer; 4075 if (mResampler != 0) { 4076 delete mResampler; 4077 delete[] mRsmpOutBuffer; 4078 } 4079} 4080 4081void AudioFlinger::RecordThread::onFirstRef() 4082{ 4083 run(mName, PRIORITY_URGENT_AUDIO); 4084} 4085 4086bool AudioFlinger::RecordThread::threadLoop() 4087{ 4088 AudioBufferProvider::Buffer buffer; 4089 sp<RecordTrack> activeTrack; 4090 Vector< sp<EffectChain> > effectChains; 4091 4092 nsecs_t lastWarning = 0; 4093 4094 acquireWakeLock(); 4095 4096 // start recording 4097 while (!exitPending()) { 4098 4099 processConfigEvents(); 4100 4101 { // scope for mLock 4102 Mutex::Autolock _l(mLock); 4103 checkForNewParameters_l(); 4104 if (mActiveTrack == 0 && mConfigEvents.isEmpty()) { 4105 if (!mStandby) { 4106 mInput->stream->common.standby(&mInput->stream->common); 4107 mStandby = true; 4108 } 4109 4110 if (exitPending()) break; 4111 4112 releaseWakeLock_l(); 4113 LOGV("RecordThread: loop stopping"); 4114 // go to sleep 4115 mWaitWorkCV.wait(mLock); 4116 LOGV("RecordThread: loop starting"); 4117 acquireWakeLock_l(); 4118 continue; 4119 } 4120 if (mActiveTrack != 0) { 4121 if (mActiveTrack->mState == TrackBase::PAUSING) { 4122 if (!mStandby) { 4123 mInput->stream->common.standby(&mInput->stream->common); 4124 mStandby = true; 4125 } 4126 mActiveTrack.clear(); 4127 mStartStopCond.broadcast(); 4128 } else if (mActiveTrack->mState == TrackBase::RESUMING) { 4129 if (mReqChannelCount != mActiveTrack->channelCount()) { 4130 mActiveTrack.clear(); 4131 mStartStopCond.broadcast(); 4132 } else if (mBytesRead != 0) { 4133 // record start succeeds only if first read from audio input 4134 // succeeds 4135 if (mBytesRead > 0) { 4136 mActiveTrack->mState = TrackBase::ACTIVE; 4137 } else { 4138 mActiveTrack.clear(); 4139 } 4140 mStartStopCond.broadcast(); 4141 } 4142 mStandby = false; 4143 } 4144 } 4145 lockEffectChains_l(effectChains); 4146 } 4147 4148 if (mActiveTrack != 0) { 4149 if (mActiveTrack->mState != TrackBase::ACTIVE && 4150 mActiveTrack->mState != TrackBase::RESUMING) { 4151 unlockEffectChains(effectChains); 4152 usleep(kRecordThreadSleepUs); 4153 continue; 4154 } 4155 for (size_t i = 0; i < effectChains.size(); i ++) { 4156 effectChains[i]->process_l(); 4157 } 4158 4159 buffer.frameCount = mFrameCount; 4160 if (LIKELY(mActiveTrack->getNextBuffer(&buffer) == NO_ERROR)) { 4161 size_t framesOut = buffer.frameCount; 4162 if (mResampler == 0) { 4163 // no resampling 4164 while (framesOut) { 4165 size_t framesIn = mFrameCount - mRsmpInIndex; 4166 if (framesIn) { 4167 int8_t *src = (int8_t *)mRsmpInBuffer + mRsmpInIndex * mFrameSize; 4168 int8_t *dst = buffer.i8 + (buffer.frameCount - framesOut) * mActiveTrack->mCblk->frameSize; 4169 if (framesIn > framesOut) 4170 framesIn = framesOut; 4171 mRsmpInIndex += framesIn; 4172 framesOut -= framesIn; 4173 if ((int)mChannelCount == mReqChannelCount || 4174 mFormat != AUDIO_FORMAT_PCM_16_BIT) { 4175 memcpy(dst, src, framesIn * mFrameSize); 4176 } else { 4177 int16_t *src16 = (int16_t *)src; 4178 int16_t *dst16 = (int16_t *)dst; 4179 if (mChannelCount == 1) { 4180 while (framesIn--) { 4181 *dst16++ = *src16; 4182 *dst16++ = *src16++; 4183 } 4184 } else { 4185 while (framesIn--) { 4186 *dst16++ = (int16_t)(((int32_t)*src16 + (int32_t)*(src16 + 1)) >> 1); 4187 src16 += 2; 4188 } 4189 } 4190 } 4191 } 4192 if (framesOut && mFrameCount == mRsmpInIndex) { 4193 if (framesOut == mFrameCount && 4194 ((int)mChannelCount == mReqChannelCount || mFormat != AUDIO_FORMAT_PCM_16_BIT)) { 4195 mBytesRead = mInput->stream->read(mInput->stream, buffer.raw, mInputBytes); 4196 framesOut = 0; 4197 } else { 4198 mBytesRead = mInput->stream->read(mInput->stream, mRsmpInBuffer, mInputBytes); 4199 mRsmpInIndex = 0; 4200 } 4201 if (mBytesRead < 0) { 4202 LOGE("Error reading audio input"); 4203 if (mActiveTrack->mState == TrackBase::ACTIVE) { 4204 // Force input into standby so that it tries to 4205 // recover at next read attempt 4206 mInput->stream->common.standby(&mInput->stream->common); 4207 usleep(kRecordThreadSleepUs); 4208 } 4209 mRsmpInIndex = mFrameCount; 4210 framesOut = 0; 4211 buffer.frameCount = 0; 4212 } 4213 } 4214 } 4215 } else { 4216 // resampling 4217 4218 memset(mRsmpOutBuffer, 0, framesOut * 2 * sizeof(int32_t)); 4219 // alter output frame count as if we were expecting stereo samples 4220 if (mChannelCount == 1 && mReqChannelCount == 1) { 4221 framesOut >>= 1; 4222 } 4223 mResampler->resample(mRsmpOutBuffer, framesOut, this); 4224 // ditherAndClamp() works as long as all buffers returned by mActiveTrack->getNextBuffer() 4225 // are 32 bit aligned which should be always true. 4226 if (mChannelCount == 2 && mReqChannelCount == 1) { 4227 AudioMixer::ditherAndClamp(mRsmpOutBuffer, mRsmpOutBuffer, framesOut); 4228 // the resampler always outputs stereo samples: do post stereo to mono conversion 4229 int16_t *src = (int16_t *)mRsmpOutBuffer; 4230 int16_t *dst = buffer.i16; 4231 while (framesOut--) { 4232 *dst++ = (int16_t)(((int32_t)*src + (int32_t)*(src + 1)) >> 1); 4233 src += 2; 4234 } 4235 } else { 4236 AudioMixer::ditherAndClamp((int32_t *)buffer.raw, mRsmpOutBuffer, framesOut); 4237 } 4238 4239 } 4240 mActiveTrack->releaseBuffer(&buffer); 4241 mActiveTrack->overflow(); 4242 } 4243 // client isn't retrieving buffers fast enough 4244 else { 4245 if (!mActiveTrack->setOverflow()) { 4246 nsecs_t now = systemTime(); 4247 if ((now - lastWarning) > kWarningThrottle) { 4248 LOGW("RecordThread: buffer overflow"); 4249 lastWarning = now; 4250 } 4251 } 4252 // Release the processor for a while before asking for a new buffer. 4253 // This will give the application more chance to read from the buffer and 4254 // clear the overflow. 4255 usleep(kRecordThreadSleepUs); 4256 } 4257 } 4258 // enable changes in effect chain 4259 unlockEffectChains(effectChains); 4260 effectChains.clear(); 4261 } 4262 4263 if (!mStandby) { 4264 mInput->stream->common.standby(&mInput->stream->common); 4265 } 4266 mActiveTrack.clear(); 4267 4268 mStartStopCond.broadcast(); 4269 4270 releaseWakeLock(); 4271 4272 LOGV("RecordThread %p exiting", this); 4273 return false; 4274} 4275 4276 4277sp<AudioFlinger::RecordThread::RecordTrack> AudioFlinger::RecordThread::createRecordTrack_l( 4278 const sp<AudioFlinger::Client>& client, 4279 uint32_t sampleRate, 4280 int format, 4281 int channelMask, 4282 int frameCount, 4283 uint32_t flags, 4284 int sessionId, 4285 status_t *status) 4286{ 4287 sp<RecordTrack> track; 4288 status_t lStatus; 4289 4290 lStatus = initCheck(); 4291 if (lStatus != NO_ERROR) { 4292 LOGE("Audio driver not initialized."); 4293 goto Exit; 4294 } 4295 4296 { // scope for mLock 4297 Mutex::Autolock _l(mLock); 4298 4299 track = new RecordTrack(this, client, sampleRate, 4300 format, channelMask, frameCount, flags, sessionId); 4301 4302 if (track->getCblk() == NULL) { 4303 lStatus = NO_MEMORY; 4304 goto Exit; 4305 } 4306 4307 mTrack = track.get(); 4308 // disable AEC and NS if the device is a BT SCO headset supporting those pre processings 4309 bool suspend = audio_is_bluetooth_sco_device( 4310 (audio_devices_t)(mDevice & AUDIO_DEVICE_IN_ALL)) && mAudioFlinger->btNrec(); 4311 setEffectSuspended_l(FX_IID_AEC, suspend, sessionId); 4312 setEffectSuspended_l(FX_IID_NS, suspend, sessionId); 4313 } 4314 lStatus = NO_ERROR; 4315 4316Exit: 4317 if (status) { 4318 *status = lStatus; 4319 } 4320 return track; 4321} 4322 4323status_t AudioFlinger::RecordThread::start(RecordThread::RecordTrack* recordTrack) 4324{ 4325 LOGV("RecordThread::start"); 4326 sp <ThreadBase> strongMe = this; 4327 status_t status = NO_ERROR; 4328 { 4329 AutoMutex lock(&mLock); 4330 if (mActiveTrack != 0) { 4331 if (recordTrack != mActiveTrack.get()) { 4332 status = -EBUSY; 4333 } else if (mActiveTrack->mState == TrackBase::PAUSING) { 4334 mActiveTrack->mState = TrackBase::ACTIVE; 4335 } 4336 return status; 4337 } 4338 4339 recordTrack->mState = TrackBase::IDLE; 4340 mActiveTrack = recordTrack; 4341 mLock.unlock(); 4342 status_t status = AudioSystem::startInput(mId); 4343 mLock.lock(); 4344 if (status != NO_ERROR) { 4345 mActiveTrack.clear(); 4346 return status; 4347 } 4348 mRsmpInIndex = mFrameCount; 4349 mBytesRead = 0; 4350 if (mResampler != NULL) { 4351 mResampler->reset(); 4352 } 4353 mActiveTrack->mState = TrackBase::RESUMING; 4354 // signal thread to start 4355 LOGV("Signal record thread"); 4356 mWaitWorkCV.signal(); 4357 // do not wait for mStartStopCond if exiting 4358 if (mExiting) { 4359 mActiveTrack.clear(); 4360 status = INVALID_OPERATION; 4361 goto startError; 4362 } 4363 mStartStopCond.wait(mLock); 4364 if (mActiveTrack == 0) { 4365 LOGV("Record failed to start"); 4366 status = BAD_VALUE; 4367 goto startError; 4368 } 4369 LOGV("Record started OK"); 4370 return status; 4371 } 4372startError: 4373 AudioSystem::stopInput(mId); 4374 return status; 4375} 4376 4377void AudioFlinger::RecordThread::stop(RecordThread::RecordTrack* recordTrack) { 4378 LOGV("RecordThread::stop"); 4379 sp <ThreadBase> strongMe = this; 4380 { 4381 AutoMutex lock(&mLock); 4382 if (mActiveTrack != 0 && recordTrack == mActiveTrack.get()) { 4383 mActiveTrack->mState = TrackBase::PAUSING; 4384 // do not wait for mStartStopCond if exiting 4385 if (mExiting) { 4386 return; 4387 } 4388 mStartStopCond.wait(mLock); 4389 // if we have been restarted, recordTrack == mActiveTrack.get() here 4390 if (mActiveTrack == 0 || recordTrack != mActiveTrack.get()) { 4391 mLock.unlock(); 4392 AudioSystem::stopInput(mId); 4393 mLock.lock(); 4394 LOGV("Record stopped OK"); 4395 } 4396 } 4397 } 4398} 4399 4400status_t AudioFlinger::RecordThread::dump(int fd, const Vector<String16>& args) 4401{ 4402 const size_t SIZE = 256; 4403 char buffer[SIZE]; 4404 String8 result; 4405 pid_t pid = 0; 4406 4407 snprintf(buffer, SIZE, "\nInput thread %p internals\n", this); 4408 result.append(buffer); 4409 4410 if (mActiveTrack != 0) { 4411 result.append("Active Track:\n"); 4412 result.append(" Clien Fmt Chn mask Session Buf S SRate Serv User\n"); 4413 mActiveTrack->dump(buffer, SIZE); 4414 result.append(buffer); 4415 4416 snprintf(buffer, SIZE, "In index: %d\n", mRsmpInIndex); 4417 result.append(buffer); 4418 snprintf(buffer, SIZE, "In size: %d\n", mInputBytes); 4419 result.append(buffer); 4420 snprintf(buffer, SIZE, "Resampling: %d\n", (mResampler != 0)); 4421 result.append(buffer); 4422 snprintf(buffer, SIZE, "Out channel count: %d\n", mReqChannelCount); 4423 result.append(buffer); 4424 snprintf(buffer, SIZE, "Out sample rate: %d\n", mReqSampleRate); 4425 result.append(buffer); 4426 4427 4428 } else { 4429 result.append("No record client\n"); 4430 } 4431 write(fd, result.string(), result.size()); 4432 4433 dumpBase(fd, args); 4434 dumpEffectChains(fd, args); 4435 4436 return NO_ERROR; 4437} 4438 4439status_t AudioFlinger::RecordThread::getNextBuffer(AudioBufferProvider::Buffer* buffer) 4440{ 4441 size_t framesReq = buffer->frameCount; 4442 size_t framesReady = mFrameCount - mRsmpInIndex; 4443 int channelCount; 4444 4445 if (framesReady == 0) { 4446 mBytesRead = mInput->stream->read(mInput->stream, mRsmpInBuffer, mInputBytes); 4447 if (mBytesRead < 0) { 4448 LOGE("RecordThread::getNextBuffer() Error reading audio input"); 4449 if (mActiveTrack->mState == TrackBase::ACTIVE) { 4450 // Force input into standby so that it tries to 4451 // recover at next read attempt 4452 mInput->stream->common.standby(&mInput->stream->common); 4453 usleep(kRecordThreadSleepUs); 4454 } 4455 buffer->raw = 0; 4456 buffer->frameCount = 0; 4457 return NOT_ENOUGH_DATA; 4458 } 4459 mRsmpInIndex = 0; 4460 framesReady = mFrameCount; 4461 } 4462 4463 if (framesReq > framesReady) { 4464 framesReq = framesReady; 4465 } 4466 4467 if (mChannelCount == 1 && mReqChannelCount == 2) { 4468 channelCount = 1; 4469 } else { 4470 channelCount = 2; 4471 } 4472 buffer->raw = mRsmpInBuffer + mRsmpInIndex * channelCount; 4473 buffer->frameCount = framesReq; 4474 return NO_ERROR; 4475} 4476 4477void AudioFlinger::RecordThread::releaseBuffer(AudioBufferProvider::Buffer* buffer) 4478{ 4479 mRsmpInIndex += buffer->frameCount; 4480 buffer->frameCount = 0; 4481} 4482 4483bool AudioFlinger::RecordThread::checkForNewParameters_l() 4484{ 4485 bool reconfig = false; 4486 4487 while (!mNewParameters.isEmpty()) { 4488 status_t status = NO_ERROR; 4489 String8 keyValuePair = mNewParameters[0]; 4490 AudioParameter param = AudioParameter(keyValuePair); 4491 int value; 4492 int reqFormat = mFormat; 4493 int reqSamplingRate = mReqSampleRate; 4494 int reqChannelCount = mReqChannelCount; 4495 4496 if (param.getInt(String8(AudioParameter::keySamplingRate), value) == NO_ERROR) { 4497 reqSamplingRate = value; 4498 reconfig = true; 4499 } 4500 if (param.getInt(String8(AudioParameter::keyFormat), value) == NO_ERROR) { 4501 reqFormat = value; 4502 reconfig = true; 4503 } 4504 if (param.getInt(String8(AudioParameter::keyChannels), value) == NO_ERROR) { 4505 reqChannelCount = popcount(value); 4506 reconfig = true; 4507 } 4508 if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) { 4509 // do not accept frame count changes if tracks are open as the track buffer 4510 // size depends on frame count and correct behavior would not be garantied 4511 // if frame count is changed after track creation 4512 if (mActiveTrack != 0) { 4513 status = INVALID_OPERATION; 4514 } else { 4515 reconfig = true; 4516 } 4517 } 4518 if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) { 4519 // forward device change to effects that have requested to be 4520 // aware of attached audio device. 4521 for (size_t i = 0; i < mEffectChains.size(); i++) { 4522 mEffectChains[i]->setDevice_l(value); 4523 } 4524 // store input device and output device but do not forward output device to audio HAL. 4525 // Note that status is ignored by the caller for output device 4526 // (see AudioFlinger::setParameters() 4527 if (value & AUDIO_DEVICE_OUT_ALL) { 4528 mDevice &= (uint32_t)~(value & AUDIO_DEVICE_OUT_ALL); 4529 status = BAD_VALUE; 4530 } else { 4531 mDevice &= (uint32_t)~(value & AUDIO_DEVICE_IN_ALL); 4532 // disable AEC and NS if the device is a BT SCO headset supporting those pre processings 4533 if (mTrack != NULL) { 4534 bool suspend = audio_is_bluetooth_sco_device( 4535 (audio_devices_t)value) && mAudioFlinger->btNrec(); 4536 setEffectSuspended_l(FX_IID_AEC, suspend, mTrack->sessionId()); 4537 setEffectSuspended_l(FX_IID_NS, suspend, mTrack->sessionId()); 4538 } 4539 } 4540 mDevice |= (uint32_t)value; 4541 } 4542 if (status == NO_ERROR) { 4543 status = mInput->stream->common.set_parameters(&mInput->stream->common, keyValuePair.string()); 4544 if (status == INVALID_OPERATION) { 4545 mInput->stream->common.standby(&mInput->stream->common); 4546 status = mInput->stream->common.set_parameters(&mInput->stream->common, keyValuePair.string()); 4547 } 4548 if (reconfig) { 4549 if (status == BAD_VALUE && 4550 reqFormat == mInput->stream->common.get_format(&mInput->stream->common) && 4551 reqFormat == AUDIO_FORMAT_PCM_16_BIT && 4552 ((int)mInput->stream->common.get_sample_rate(&mInput->stream->common) <= (2 * reqSamplingRate)) && 4553 (popcount(mInput->stream->common.get_channels(&mInput->stream->common)) < 3) && 4554 (reqChannelCount < 3)) { 4555 status = NO_ERROR; 4556 } 4557 if (status == NO_ERROR) { 4558 readInputParameters(); 4559 sendConfigEvent_l(AudioSystem::INPUT_CONFIG_CHANGED); 4560 } 4561 } 4562 } 4563 4564 mNewParameters.removeAt(0); 4565 4566 mParamStatus = status; 4567 mParamCond.signal(); 4568 mWaitWorkCV.wait(mLock); 4569 } 4570 return reconfig; 4571} 4572 4573String8 AudioFlinger::RecordThread::getParameters(const String8& keys) 4574{ 4575 char *s; 4576 String8 out_s8; 4577 4578 s = mInput->stream->common.get_parameters(&mInput->stream->common, keys.string()); 4579 out_s8 = String8(s); 4580 free(s); 4581 return out_s8; 4582} 4583 4584void AudioFlinger::RecordThread::audioConfigChanged_l(int event, int param) { 4585 AudioSystem::OutputDescriptor desc; 4586 void *param2 = 0; 4587 4588 switch (event) { 4589 case AudioSystem::INPUT_OPENED: 4590 case AudioSystem::INPUT_CONFIG_CHANGED: 4591 desc.channels = mChannelMask; 4592 desc.samplingRate = mSampleRate; 4593 desc.format = mFormat; 4594 desc.frameCount = mFrameCount; 4595 desc.latency = 0; 4596 param2 = &desc; 4597 break; 4598 4599 case AudioSystem::INPUT_CLOSED: 4600 default: 4601 break; 4602 } 4603 mAudioFlinger->audioConfigChanged_l(event, mId, param2); 4604} 4605 4606void AudioFlinger::RecordThread::readInputParameters() 4607{ 4608 if (mRsmpInBuffer) delete mRsmpInBuffer; 4609 if (mRsmpOutBuffer) delete mRsmpOutBuffer; 4610 if (mResampler) delete mResampler; 4611 mResampler = 0; 4612 4613 mSampleRate = mInput->stream->common.get_sample_rate(&mInput->stream->common); 4614 mChannelMask = mInput->stream->common.get_channels(&mInput->stream->common); 4615 mChannelCount = (uint16_t)popcount(mChannelMask); 4616 mFormat = mInput->stream->common.get_format(&mInput->stream->common); 4617 mFrameSize = (uint16_t)audio_stream_frame_size(&mInput->stream->common); 4618 mInputBytes = mInput->stream->common.get_buffer_size(&mInput->stream->common); 4619 mFrameCount = mInputBytes / mFrameSize; 4620 mRsmpInBuffer = new int16_t[mFrameCount * mChannelCount]; 4621 4622 if (mSampleRate != mReqSampleRate && mChannelCount < 3 && mReqChannelCount < 3) 4623 { 4624 int channelCount; 4625 // optmization: if mono to mono, use the resampler in stereo to stereo mode to avoid 4626 // stereo to mono post process as the resampler always outputs stereo. 4627 if (mChannelCount == 1 && mReqChannelCount == 2) { 4628 channelCount = 1; 4629 } else { 4630 channelCount = 2; 4631 } 4632 mResampler = AudioResampler::create(16, channelCount, mReqSampleRate); 4633 mResampler->setSampleRate(mSampleRate); 4634 mResampler->setVolume(AudioMixer::UNITY_GAIN, AudioMixer::UNITY_GAIN); 4635 mRsmpOutBuffer = new int32_t[mFrameCount * 2]; 4636 4637 // optmization: if mono to mono, alter input frame count as if we were inputing stereo samples 4638 if (mChannelCount == 1 && mReqChannelCount == 1) { 4639 mFrameCount >>= 1; 4640 } 4641 4642 } 4643 mRsmpInIndex = mFrameCount; 4644} 4645 4646unsigned int AudioFlinger::RecordThread::getInputFramesLost() 4647{ 4648 return mInput->stream->get_input_frames_lost(mInput->stream); 4649} 4650 4651uint32_t AudioFlinger::RecordThread::hasAudioSession(int sessionId) 4652{ 4653 Mutex::Autolock _l(mLock); 4654 uint32_t result = 0; 4655 if (getEffectChain_l(sessionId) != 0) { 4656 result = EFFECT_SESSION; 4657 } 4658 4659 if (mTrack != NULL && sessionId == mTrack->sessionId()) { 4660 result |= TRACK_SESSION; 4661 } 4662 4663 return result; 4664} 4665 4666AudioFlinger::RecordThread::RecordTrack* AudioFlinger::RecordThread::track() 4667{ 4668 Mutex::Autolock _l(mLock); 4669 return mTrack; 4670} 4671 4672// ---------------------------------------------------------------------------- 4673 4674int AudioFlinger::openOutput(uint32_t *pDevices, 4675 uint32_t *pSamplingRate, 4676 uint32_t *pFormat, 4677 uint32_t *pChannels, 4678 uint32_t *pLatencyMs, 4679 uint32_t flags) 4680{ 4681 status_t status; 4682 PlaybackThread *thread = NULL; 4683 mHardwareStatus = AUDIO_HW_OUTPUT_OPEN; 4684 uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0; 4685 uint32_t format = pFormat ? *pFormat : 0; 4686 uint32_t channels = pChannels ? *pChannels : 0; 4687 uint32_t latency = pLatencyMs ? *pLatencyMs : 0; 4688 audio_stream_out_t *outStream; 4689 audio_hw_device_t *outHwDev; 4690 4691 LOGV("openOutput(), Device %x, SamplingRate %d, Format %d, Channels %x, flags %x", 4692 pDevices ? *pDevices : 0, 4693 samplingRate, 4694 format, 4695 channels, 4696 flags); 4697 4698 if (pDevices == NULL || *pDevices == 0) { 4699 return 0; 4700 } 4701 4702 Mutex::Autolock _l(mLock); 4703 4704 outHwDev = findSuitableHwDev_l(*pDevices); 4705 if (outHwDev == NULL) 4706 return 0; 4707 4708 status = outHwDev->open_output_stream(outHwDev, *pDevices, (int *)&format, 4709 &channels, &samplingRate, &outStream); 4710 LOGV("openOutput() openOutputStream returned output %p, SamplingRate %d, Format %d, Channels %x, status %d", 4711 outStream, 4712 samplingRate, 4713 format, 4714 channels, 4715 status); 4716 4717 mHardwareStatus = AUDIO_HW_IDLE; 4718 if (outStream != NULL) { 4719 AudioStreamOut *output = new AudioStreamOut(outHwDev, outStream); 4720 int id = nextUniqueId(); 4721 4722 if ((flags & AUDIO_POLICY_OUTPUT_FLAG_DIRECT) || 4723 (format != AUDIO_FORMAT_PCM_16_BIT) || 4724 (channels != AUDIO_CHANNEL_OUT_STEREO)) { 4725 thread = new DirectOutputThread(this, output, id, *pDevices); 4726 LOGV("openOutput() created direct output: ID %d thread %p", id, thread); 4727 } else { 4728 thread = new MixerThread(this, output, id, *pDevices); 4729 LOGV("openOutput() created mixer output: ID %d thread %p", id, thread); 4730 } 4731 mPlaybackThreads.add(id, thread); 4732 4733 if (pSamplingRate) *pSamplingRate = samplingRate; 4734 if (pFormat) *pFormat = format; 4735 if (pChannels) *pChannels = channels; 4736 if (pLatencyMs) *pLatencyMs = thread->latency(); 4737 4738 // notify client processes of the new output creation 4739 thread->audioConfigChanged_l(AudioSystem::OUTPUT_OPENED); 4740 return id; 4741 } 4742 4743 return 0; 4744} 4745 4746int AudioFlinger::openDuplicateOutput(int output1, int output2) 4747{ 4748 Mutex::Autolock _l(mLock); 4749 MixerThread *thread1 = checkMixerThread_l(output1); 4750 MixerThread *thread2 = checkMixerThread_l(output2); 4751 4752 if (thread1 == NULL || thread2 == NULL) { 4753 LOGW("openDuplicateOutput() wrong output mixer type for output %d or %d", output1, output2); 4754 return 0; 4755 } 4756 4757 int id = nextUniqueId(); 4758 DuplicatingThread *thread = new DuplicatingThread(this, thread1, id); 4759 thread->addOutputTrack(thread2); 4760 mPlaybackThreads.add(id, thread); 4761 // notify client processes of the new output creation 4762 thread->audioConfigChanged_l(AudioSystem::OUTPUT_OPENED); 4763 return id; 4764} 4765 4766status_t AudioFlinger::closeOutput(int output) 4767{ 4768 // keep strong reference on the playback thread so that 4769 // it is not destroyed while exit() is executed 4770 sp <PlaybackThread> thread; 4771 { 4772 Mutex::Autolock _l(mLock); 4773 thread = checkPlaybackThread_l(output); 4774 if (thread == NULL) { 4775 return BAD_VALUE; 4776 } 4777 4778 LOGV("closeOutput() %d", output); 4779 4780 if (thread->type() == ThreadBase::MIXER) { 4781 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 4782 if (mPlaybackThreads.valueAt(i)->type() == ThreadBase::DUPLICATING) { 4783 DuplicatingThread *dupThread = (DuplicatingThread *)mPlaybackThreads.valueAt(i).get(); 4784 dupThread->removeOutputTrack((MixerThread *)thread.get()); 4785 } 4786 } 4787 } 4788 void *param2 = 0; 4789 audioConfigChanged_l(AudioSystem::OUTPUT_CLOSED, output, param2); 4790 mPlaybackThreads.removeItem(output); 4791 } 4792 thread->exit(); 4793 4794 if (thread->type() != ThreadBase::DUPLICATING) { 4795 AudioStreamOut *out = thread->getOutput(); 4796 out->hwDev->close_output_stream(out->hwDev, out->stream); 4797 delete out; 4798 } 4799 return NO_ERROR; 4800} 4801 4802status_t AudioFlinger::suspendOutput(int output) 4803{ 4804 Mutex::Autolock _l(mLock); 4805 PlaybackThread *thread = checkPlaybackThread_l(output); 4806 4807 if (thread == NULL) { 4808 return BAD_VALUE; 4809 } 4810 4811 LOGV("suspendOutput() %d", output); 4812 thread->suspend(); 4813 4814 return NO_ERROR; 4815} 4816 4817status_t AudioFlinger::restoreOutput(int output) 4818{ 4819 Mutex::Autolock _l(mLock); 4820 PlaybackThread *thread = checkPlaybackThread_l(output); 4821 4822 if (thread == NULL) { 4823 return BAD_VALUE; 4824 } 4825 4826 LOGV("restoreOutput() %d", output); 4827 4828 thread->restore(); 4829 4830 return NO_ERROR; 4831} 4832 4833int AudioFlinger::openInput(uint32_t *pDevices, 4834 uint32_t *pSamplingRate, 4835 uint32_t *pFormat, 4836 uint32_t *pChannels, 4837 uint32_t acoustics) 4838{ 4839 status_t status; 4840 RecordThread *thread = NULL; 4841 uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0; 4842 uint32_t format = pFormat ? *pFormat : 0; 4843 uint32_t channels = pChannels ? *pChannels : 0; 4844 uint32_t reqSamplingRate = samplingRate; 4845 uint32_t reqFormat = format; 4846 uint32_t reqChannels = channels; 4847 audio_stream_in_t *inStream; 4848 audio_hw_device_t *inHwDev; 4849 4850 if (pDevices == NULL || *pDevices == 0) { 4851 return 0; 4852 } 4853 4854 Mutex::Autolock _l(mLock); 4855 4856 inHwDev = findSuitableHwDev_l(*pDevices); 4857 if (inHwDev == NULL) 4858 return 0; 4859 4860 status = inHwDev->open_input_stream(inHwDev, *pDevices, (int *)&format, 4861 &channels, &samplingRate, 4862 (audio_in_acoustics_t)acoustics, 4863 &inStream); 4864 LOGV("openInput() openInputStream returned input %p, SamplingRate %d, Format %d, Channels %x, acoustics %x, status %d", 4865 inStream, 4866 samplingRate, 4867 format, 4868 channels, 4869 acoustics, 4870 status); 4871 4872 // If the input could not be opened with the requested parameters and we can handle the conversion internally, 4873 // try to open again with the proposed parameters. The AudioFlinger can resample the input and do mono to stereo 4874 // or stereo to mono conversions on 16 bit PCM inputs. 4875 if (inStream == NULL && status == BAD_VALUE && 4876 reqFormat == format && format == AUDIO_FORMAT_PCM_16_BIT && 4877 (samplingRate <= 2 * reqSamplingRate) && 4878 (popcount(channels) < 3) && (popcount(reqChannels) < 3)) { 4879 LOGV("openInput() reopening with proposed sampling rate and channels"); 4880 status = inHwDev->open_input_stream(inHwDev, *pDevices, (int *)&format, 4881 &channels, &samplingRate, 4882 (audio_in_acoustics_t)acoustics, 4883 &inStream); 4884 } 4885 4886 if (inStream != NULL) { 4887 AudioStreamIn *input = new AudioStreamIn(inHwDev, inStream); 4888 4889 int id = nextUniqueId(); 4890 // Start record thread 4891 // RecorThread require both input and output device indication to forward to audio 4892 // pre processing modules 4893 uint32_t device = (*pDevices) | primaryOutputDevice_l(); 4894 thread = new RecordThread(this, 4895 input, 4896 reqSamplingRate, 4897 reqChannels, 4898 id, 4899 device); 4900 mRecordThreads.add(id, thread); 4901 LOGV("openInput() created record thread: ID %d thread %p", id, thread); 4902 if (pSamplingRate) *pSamplingRate = reqSamplingRate; 4903 if (pFormat) *pFormat = format; 4904 if (pChannels) *pChannels = reqChannels; 4905 4906 input->stream->common.standby(&input->stream->common); 4907 4908 // notify client processes of the new input creation 4909 thread->audioConfigChanged_l(AudioSystem::INPUT_OPENED); 4910 return id; 4911 } 4912 4913 return 0; 4914} 4915 4916status_t AudioFlinger::closeInput(int input) 4917{ 4918 // keep strong reference on the record thread so that 4919 // it is not destroyed while exit() is executed 4920 sp <RecordThread> thread; 4921 { 4922 Mutex::Autolock _l(mLock); 4923 thread = checkRecordThread_l(input); 4924 if (thread == NULL) { 4925 return BAD_VALUE; 4926 } 4927 4928 LOGV("closeInput() %d", input); 4929 void *param2 = 0; 4930 audioConfigChanged_l(AudioSystem::INPUT_CLOSED, input, param2); 4931 mRecordThreads.removeItem(input); 4932 } 4933 thread->exit(); 4934 4935 AudioStreamIn *in = thread->getInput(); 4936 in->hwDev->close_input_stream(in->hwDev, in->stream); 4937 delete in; 4938 4939 return NO_ERROR; 4940} 4941 4942status_t AudioFlinger::setStreamOutput(uint32_t stream, int output) 4943{ 4944 Mutex::Autolock _l(mLock); 4945 MixerThread *dstThread = checkMixerThread_l(output); 4946 if (dstThread == NULL) { 4947 LOGW("setStreamOutput() bad output id %d", output); 4948 return BAD_VALUE; 4949 } 4950 4951 LOGV("setStreamOutput() stream %d to output %d", stream, output); 4952 audioConfigChanged_l(AudioSystem::STREAM_CONFIG_CHANGED, output, &stream); 4953 4954 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 4955 PlaybackThread *thread = mPlaybackThreads.valueAt(i).get(); 4956 if (thread != dstThread && 4957 thread->type() != ThreadBase::DIRECT) { 4958 MixerThread *srcThread = (MixerThread *)thread; 4959 srcThread->invalidateTracks(stream); 4960 } 4961 } 4962 4963 return NO_ERROR; 4964} 4965 4966 4967int AudioFlinger::newAudioSessionId() 4968{ 4969 return nextUniqueId(); 4970} 4971 4972// checkPlaybackThread_l() must be called with AudioFlinger::mLock held 4973AudioFlinger::PlaybackThread *AudioFlinger::checkPlaybackThread_l(int output) const 4974{ 4975 PlaybackThread *thread = NULL; 4976 if (mPlaybackThreads.indexOfKey(output) >= 0) { 4977 thread = (PlaybackThread *)mPlaybackThreads.valueFor(output).get(); 4978 } 4979 return thread; 4980} 4981 4982// checkMixerThread_l() must be called with AudioFlinger::mLock held 4983AudioFlinger::MixerThread *AudioFlinger::checkMixerThread_l(int output) const 4984{ 4985 PlaybackThread *thread = checkPlaybackThread_l(output); 4986 if (thread != NULL) { 4987 if (thread->type() == ThreadBase::DIRECT) { 4988 thread = NULL; 4989 } 4990 } 4991 return (MixerThread *)thread; 4992} 4993 4994// checkRecordThread_l() must be called with AudioFlinger::mLock held 4995AudioFlinger::RecordThread *AudioFlinger::checkRecordThread_l(int input) const 4996{ 4997 RecordThread *thread = NULL; 4998 if (mRecordThreads.indexOfKey(input) >= 0) { 4999 thread = (RecordThread *)mRecordThreads.valueFor(input).get(); 5000 } 5001 return thread; 5002} 5003 5004uint32_t AudioFlinger::nextUniqueId() 5005{ 5006 return android_atomic_inc(&mNextUniqueId); 5007} 5008 5009AudioFlinger::PlaybackThread *AudioFlinger::primaryPlaybackThread_l() 5010{ 5011 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 5012 PlaybackThread *thread = mPlaybackThreads.valueAt(i).get(); 5013 if (thread->getOutput()->hwDev == mPrimaryHardwareDev) { 5014 return thread; 5015 } 5016 } 5017 return NULL; 5018} 5019 5020uint32_t AudioFlinger::primaryOutputDevice_l() 5021{ 5022 PlaybackThread *thread = primaryPlaybackThread_l(); 5023 5024 if (thread == NULL) { 5025 return 0; 5026 } 5027 5028 return thread->device(); 5029} 5030 5031 5032// ---------------------------------------------------------------------------- 5033// Effect management 5034// ---------------------------------------------------------------------------- 5035 5036 5037status_t AudioFlinger::queryNumberEffects(uint32_t *numEffects) 5038{ 5039 Mutex::Autolock _l(mLock); 5040 return EffectQueryNumberEffects(numEffects); 5041} 5042 5043status_t AudioFlinger::queryEffect(uint32_t index, effect_descriptor_t *descriptor) 5044{ 5045 Mutex::Autolock _l(mLock); 5046 return EffectQueryEffect(index, descriptor); 5047} 5048 5049status_t AudioFlinger::getEffectDescriptor(effect_uuid_t *pUuid, effect_descriptor_t *descriptor) 5050{ 5051 Mutex::Autolock _l(mLock); 5052 return EffectGetDescriptor(pUuid, descriptor); 5053} 5054 5055 5056sp<IEffect> AudioFlinger::createEffect(pid_t pid, 5057 effect_descriptor_t *pDesc, 5058 const sp<IEffectClient>& effectClient, 5059 int32_t priority, 5060 int io, 5061 int sessionId, 5062 status_t *status, 5063 int *id, 5064 int *enabled) 5065{ 5066 status_t lStatus = NO_ERROR; 5067 sp<EffectHandle> handle; 5068 effect_descriptor_t desc; 5069 sp<Client> client; 5070 wp<Client> wclient; 5071 5072 LOGV("createEffect pid %d, client %p, priority %d, sessionId %d, io %d", 5073 pid, effectClient.get(), priority, sessionId, io); 5074 5075 if (pDesc == NULL) { 5076 lStatus = BAD_VALUE; 5077 goto Exit; 5078 } 5079 5080 // check audio settings permission for global effects 5081 if (sessionId == AUDIO_SESSION_OUTPUT_MIX && !settingsAllowed()) { 5082 lStatus = PERMISSION_DENIED; 5083 goto Exit; 5084 } 5085 5086 // Session AUDIO_SESSION_OUTPUT_STAGE is reserved for output stage effects 5087 // that can only be created by audio policy manager (running in same process) 5088 if (sessionId == AUDIO_SESSION_OUTPUT_STAGE && getpid() != pid) { 5089 lStatus = PERMISSION_DENIED; 5090 goto Exit; 5091 } 5092 5093 if (io == 0) { 5094 if (sessionId == AUDIO_SESSION_OUTPUT_STAGE) { 5095 // output must be specified by AudioPolicyManager when using session 5096 // AUDIO_SESSION_OUTPUT_STAGE 5097 lStatus = BAD_VALUE; 5098 goto Exit; 5099 } else if (sessionId == AUDIO_SESSION_OUTPUT_MIX) { 5100 // if the output returned by getOutputForEffect() is removed before we lock the 5101 // mutex below, the call to checkPlaybackThread_l(io) below will detect it 5102 // and we will exit safely 5103 io = AudioSystem::getOutputForEffect(&desc); 5104 } 5105 } 5106 5107 { 5108 Mutex::Autolock _l(mLock); 5109 5110 5111 if (!EffectIsNullUuid(&pDesc->uuid)) { 5112 // if uuid is specified, request effect descriptor 5113 lStatus = EffectGetDescriptor(&pDesc->uuid, &desc); 5114 if (lStatus < 0) { 5115 LOGW("createEffect() error %d from EffectGetDescriptor", lStatus); 5116 goto Exit; 5117 } 5118 } else { 5119 // if uuid is not specified, look for an available implementation 5120 // of the required type in effect factory 5121 if (EffectIsNullUuid(&pDesc->type)) { 5122 LOGW("createEffect() no effect type"); 5123 lStatus = BAD_VALUE; 5124 goto Exit; 5125 } 5126 uint32_t numEffects = 0; 5127 effect_descriptor_t d; 5128 bool found = false; 5129 5130 lStatus = EffectQueryNumberEffects(&numEffects); 5131 if (lStatus < 0) { 5132 LOGW("createEffect() error %d from EffectQueryNumberEffects", lStatus); 5133 goto Exit; 5134 } 5135 for (uint32_t i = 0; i < numEffects; i++) { 5136 lStatus = EffectQueryEffect(i, &desc); 5137 if (lStatus < 0) { 5138 LOGW("createEffect() error %d from EffectQueryEffect", lStatus); 5139 continue; 5140 } 5141 if (memcmp(&desc.type, &pDesc->type, sizeof(effect_uuid_t)) == 0) { 5142 // If matching type found save effect descriptor. If the session is 5143 // 0 and the effect is not auxiliary, continue enumeration in case 5144 // an auxiliary version of this effect type is available 5145 found = true; 5146 memcpy(&d, &desc, sizeof(effect_descriptor_t)); 5147 if (sessionId != AUDIO_SESSION_OUTPUT_MIX || 5148 (desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5149 break; 5150 } 5151 } 5152 } 5153 if (!found) { 5154 lStatus = BAD_VALUE; 5155 LOGW("createEffect() effect not found"); 5156 goto Exit; 5157 } 5158 // For same effect type, chose auxiliary version over insert version if 5159 // connect to output mix (Compliance to OpenSL ES) 5160 if (sessionId == AUDIO_SESSION_OUTPUT_MIX && 5161 (d.flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_AUXILIARY) { 5162 memcpy(&desc, &d, sizeof(effect_descriptor_t)); 5163 } 5164 } 5165 5166 // Do not allow auxiliary effects on a session different from 0 (output mix) 5167 if (sessionId != AUDIO_SESSION_OUTPUT_MIX && 5168 (desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5169 lStatus = INVALID_OPERATION; 5170 goto Exit; 5171 } 5172 5173 // check recording permission for visualizer 5174 if ((memcmp(&desc.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0) && 5175 !recordingAllowed()) { 5176 lStatus = PERMISSION_DENIED; 5177 goto Exit; 5178 } 5179 5180 // return effect descriptor 5181 memcpy(pDesc, &desc, sizeof(effect_descriptor_t)); 5182 5183 // If output is not specified try to find a matching audio session ID in one of the 5184 // output threads. 5185 // If output is 0 here, sessionId is neither SESSION_OUTPUT_STAGE nor SESSION_OUTPUT_MIX 5186 // because of code checking output when entering the function. 5187 // Note: io is never 0 when creating an effect on an input 5188 if (io == 0) { 5189 // look for the thread where the specified audio session is present 5190 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 5191 if (mPlaybackThreads.valueAt(i)->hasAudioSession(sessionId) != 0) { 5192 io = mPlaybackThreads.keyAt(i); 5193 break; 5194 } 5195 } 5196 if (io == 0) { 5197 for (size_t i = 0; i < mRecordThreads.size(); i++) { 5198 if (mRecordThreads.valueAt(i)->hasAudioSession(sessionId) != 0) { 5199 io = mRecordThreads.keyAt(i); 5200 break; 5201 } 5202 } 5203 } 5204 // If no output thread contains the requested session ID, default to 5205 // first output. The effect chain will be moved to the correct output 5206 // thread when a track with the same session ID is created 5207 if (io == 0 && mPlaybackThreads.size()) { 5208 io = mPlaybackThreads.keyAt(0); 5209 } 5210 LOGV("createEffect() got io %d for effect %s", io, desc.name); 5211 } 5212 ThreadBase *thread = checkRecordThread_l(io); 5213 if (thread == NULL) { 5214 thread = checkPlaybackThread_l(io); 5215 if (thread == NULL) { 5216 LOGE("createEffect() unknown output thread"); 5217 lStatus = BAD_VALUE; 5218 goto Exit; 5219 } 5220 } 5221 5222 wclient = mClients.valueFor(pid); 5223 5224 if (wclient != NULL) { 5225 client = wclient.promote(); 5226 } else { 5227 client = new Client(this, pid); 5228 mClients.add(pid, client); 5229 } 5230 5231 // create effect on selected output trhead 5232 handle = thread->createEffect_l(client, effectClient, priority, sessionId, 5233 &desc, enabled, &lStatus); 5234 if (handle != 0 && id != NULL) { 5235 *id = handle->id(); 5236 } 5237 } 5238 5239Exit: 5240 if(status) { 5241 *status = lStatus; 5242 } 5243 return handle; 5244} 5245 5246status_t AudioFlinger::moveEffects(int sessionId, int srcOutput, int dstOutput) 5247{ 5248 LOGV("moveEffects() session %d, srcOutput %d, dstOutput %d", 5249 sessionId, srcOutput, dstOutput); 5250 Mutex::Autolock _l(mLock); 5251 if (srcOutput == dstOutput) { 5252 LOGW("moveEffects() same dst and src outputs %d", dstOutput); 5253 return NO_ERROR; 5254 } 5255 PlaybackThread *srcThread = checkPlaybackThread_l(srcOutput); 5256 if (srcThread == NULL) { 5257 LOGW("moveEffects() bad srcOutput %d", srcOutput); 5258 return BAD_VALUE; 5259 } 5260 PlaybackThread *dstThread = checkPlaybackThread_l(dstOutput); 5261 if (dstThread == NULL) { 5262 LOGW("moveEffects() bad dstOutput %d", dstOutput); 5263 return BAD_VALUE; 5264 } 5265 5266 Mutex::Autolock _dl(dstThread->mLock); 5267 Mutex::Autolock _sl(srcThread->mLock); 5268 moveEffectChain_l(sessionId, srcThread, dstThread, false); 5269 5270 return NO_ERROR; 5271} 5272 5273// moveEffectChain_l mustbe called with both srcThread and dstThread mLocks held 5274status_t AudioFlinger::moveEffectChain_l(int sessionId, 5275 AudioFlinger::PlaybackThread *srcThread, 5276 AudioFlinger::PlaybackThread *dstThread, 5277 bool reRegister) 5278{ 5279 LOGV("moveEffectChain_l() session %d from thread %p to thread %p", 5280 sessionId, srcThread, dstThread); 5281 5282 sp<EffectChain> chain = srcThread->getEffectChain_l(sessionId); 5283 if (chain == 0) { 5284 LOGW("moveEffectChain_l() effect chain for session %d not on source thread %p", 5285 sessionId, srcThread); 5286 return INVALID_OPERATION; 5287 } 5288 5289 // remove chain first. This is useful only if reconfiguring effect chain on same output thread, 5290 // so that a new chain is created with correct parameters when first effect is added. This is 5291 // otherwise unecessary as removeEffect_l() will remove the chain when last effect is 5292 // removed. 5293 srcThread->removeEffectChain_l(chain); 5294 5295 // transfer all effects one by one so that new effect chain is created on new thread with 5296 // correct buffer sizes and audio parameters and effect engines reconfigured accordingly 5297 int dstOutput = dstThread->id(); 5298 sp<EffectChain> dstChain; 5299 uint32_t strategy; 5300 sp<EffectModule> effect = chain->getEffectFromId_l(0); 5301 while (effect != 0) { 5302 srcThread->removeEffect_l(effect); 5303 dstThread->addEffect_l(effect); 5304 // if the move request is not received from audio policy manager, the effect must be 5305 // re-registered with the new strategy and output 5306 if (dstChain == 0) { 5307 dstChain = effect->chain().promote(); 5308 if (dstChain == 0) { 5309 LOGW("moveEffectChain_l() cannot get chain from effect %p", effect.get()); 5310 srcThread->addEffect_l(effect); 5311 return NO_INIT; 5312 } 5313 strategy = dstChain->strategy(); 5314 } 5315 if (reRegister) { 5316 AudioSystem::unregisterEffect(effect->id()); 5317 AudioSystem::registerEffect(&effect->desc(), 5318 dstOutput, 5319 strategy, 5320 sessionId, 5321 effect->id()); 5322 } 5323 effect = chain->getEffectFromId_l(0); 5324 } 5325 5326 return NO_ERROR; 5327} 5328 5329 5330// PlaybackThread::createEffect_l() must be called with AudioFlinger::mLock held 5331sp<AudioFlinger::EffectHandle> AudioFlinger::ThreadBase::createEffect_l( 5332 const sp<AudioFlinger::Client>& client, 5333 const sp<IEffectClient>& effectClient, 5334 int32_t priority, 5335 int sessionId, 5336 effect_descriptor_t *desc, 5337 int *enabled, 5338 status_t *status 5339 ) 5340{ 5341 sp<EffectModule> effect; 5342 sp<EffectHandle> handle; 5343 status_t lStatus; 5344 sp<EffectChain> chain; 5345 bool chainCreated = false; 5346 bool effectCreated = false; 5347 bool effectRegistered = false; 5348 5349 lStatus = initCheck(); 5350 if (lStatus != NO_ERROR) { 5351 LOGW("createEffect_l() Audio driver not initialized."); 5352 goto Exit; 5353 } 5354 5355 // Do not allow effects with session ID 0 on direct output or duplicating threads 5356 // TODO: add rule for hw accelerated effects on direct outputs with non PCM format 5357 if (sessionId == AUDIO_SESSION_OUTPUT_MIX && mType != MIXER) { 5358 LOGW("createEffect_l() Cannot add auxiliary effect %s to session %d", 5359 desc->name, sessionId); 5360 lStatus = BAD_VALUE; 5361 goto Exit; 5362 } 5363 // Only Pre processor effects are allowed on input threads and only on input threads 5364 if ((mType == RECORD && 5365 (desc->flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_PRE_PROC) || 5366 (mType != RECORD && 5367 (desc->flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC)) { 5368 LOGW("createEffect_l() effect %s (flags %08x) created on wrong thread type %d", 5369 desc->name, desc->flags, mType); 5370 lStatus = BAD_VALUE; 5371 goto Exit; 5372 } 5373 5374 LOGV("createEffect_l() thread %p effect %s on session %d", this, desc->name, sessionId); 5375 5376 { // scope for mLock 5377 Mutex::Autolock _l(mLock); 5378 5379 // check for existing effect chain with the requested audio session 5380 chain = getEffectChain_l(sessionId); 5381 if (chain == 0) { 5382 // create a new chain for this session 5383 LOGV("createEffect_l() new effect chain for session %d", sessionId); 5384 chain = new EffectChain(this, sessionId); 5385 addEffectChain_l(chain); 5386 chain->setStrategy(getStrategyForSession_l(sessionId)); 5387 chainCreated = true; 5388 } else { 5389 effect = chain->getEffectFromDesc_l(desc); 5390 } 5391 5392 LOGV("createEffect_l() got effect %p on chain %p", effect == 0 ? 0 : effect.get(), chain.get()); 5393 5394 if (effect == 0) { 5395 int id = mAudioFlinger->nextUniqueId(); 5396 // Check CPU and memory usage 5397 lStatus = AudioSystem::registerEffect(desc, mId, chain->strategy(), sessionId, id); 5398 if (lStatus != NO_ERROR) { 5399 goto Exit; 5400 } 5401 effectRegistered = true; 5402 // create a new effect module if none present in the chain 5403 effect = new EffectModule(this, chain, desc, id, sessionId); 5404 lStatus = effect->status(); 5405 if (lStatus != NO_ERROR) { 5406 goto Exit; 5407 } 5408 lStatus = chain->addEffect_l(effect); 5409 if (lStatus != NO_ERROR) { 5410 goto Exit; 5411 } 5412 effectCreated = true; 5413 5414 effect->setDevice(mDevice); 5415 effect->setMode(mAudioFlinger->getMode()); 5416 } 5417 // create effect handle and connect it to effect module 5418 handle = new EffectHandle(effect, client, effectClient, priority); 5419 lStatus = effect->addHandle(handle); 5420 if (enabled) { 5421 *enabled = (int)effect->isEnabled(); 5422 } 5423 } 5424 5425Exit: 5426 if (lStatus != NO_ERROR && lStatus != ALREADY_EXISTS) { 5427 Mutex::Autolock _l(mLock); 5428 if (effectCreated) { 5429 chain->removeEffect_l(effect); 5430 } 5431 if (effectRegistered) { 5432 AudioSystem::unregisterEffect(effect->id()); 5433 } 5434 if (chainCreated) { 5435 removeEffectChain_l(chain); 5436 } 5437 handle.clear(); 5438 } 5439 5440 if(status) { 5441 *status = lStatus; 5442 } 5443 return handle; 5444} 5445 5446sp<AudioFlinger::EffectModule> AudioFlinger::ThreadBase::getEffect_l(int sessionId, int effectId) 5447{ 5448 sp<EffectModule> effect; 5449 5450 sp<EffectChain> chain = getEffectChain_l(sessionId); 5451 if (chain != 0) { 5452 effect = chain->getEffectFromId_l(effectId); 5453 } 5454 return effect; 5455} 5456 5457// PlaybackThread::addEffect_l() must be called with AudioFlinger::mLock and 5458// PlaybackThread::mLock held 5459status_t AudioFlinger::ThreadBase::addEffect_l(const sp<EffectModule>& effect) 5460{ 5461 // check for existing effect chain with the requested audio session 5462 int sessionId = effect->sessionId(); 5463 sp<EffectChain> chain = getEffectChain_l(sessionId); 5464 bool chainCreated = false; 5465 5466 if (chain == 0) { 5467 // create a new chain for this session 5468 LOGV("addEffect_l() new effect chain for session %d", sessionId); 5469 chain = new EffectChain(this, sessionId); 5470 addEffectChain_l(chain); 5471 chain->setStrategy(getStrategyForSession_l(sessionId)); 5472 chainCreated = true; 5473 } 5474 LOGV("addEffect_l() %p chain %p effect %p", this, chain.get(), effect.get()); 5475 5476 if (chain->getEffectFromId_l(effect->id()) != 0) { 5477 LOGW("addEffect_l() %p effect %s already present in chain %p", 5478 this, effect->desc().name, chain.get()); 5479 return BAD_VALUE; 5480 } 5481 5482 status_t status = chain->addEffect_l(effect); 5483 if (status != NO_ERROR) { 5484 if (chainCreated) { 5485 removeEffectChain_l(chain); 5486 } 5487 return status; 5488 } 5489 5490 effect->setDevice(mDevice); 5491 effect->setMode(mAudioFlinger->getMode()); 5492 return NO_ERROR; 5493} 5494 5495void AudioFlinger::ThreadBase::removeEffect_l(const sp<EffectModule>& effect) { 5496 5497 LOGV("removeEffect_l() %p effect %p", this, effect.get()); 5498 effect_descriptor_t desc = effect->desc(); 5499 if ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5500 detachAuxEffect_l(effect->id()); 5501 } 5502 5503 sp<EffectChain> chain = effect->chain().promote(); 5504 if (chain != 0) { 5505 // remove effect chain if removing last effect 5506 if (chain->removeEffect_l(effect) == 0) { 5507 removeEffectChain_l(chain); 5508 } 5509 } else { 5510 LOGW("removeEffect_l() %p cannot promote chain for effect %p", this, effect.get()); 5511 } 5512} 5513 5514void AudioFlinger::ThreadBase::lockEffectChains_l( 5515 Vector<sp <AudioFlinger::EffectChain> >& effectChains) 5516{ 5517 effectChains = mEffectChains; 5518 for (size_t i = 0; i < mEffectChains.size(); i++) { 5519 mEffectChains[i]->lock(); 5520 } 5521} 5522 5523void AudioFlinger::ThreadBase::unlockEffectChains( 5524 Vector<sp <AudioFlinger::EffectChain> >& effectChains) 5525{ 5526 for (size_t i = 0; i < effectChains.size(); i++) { 5527 effectChains[i]->unlock(); 5528 } 5529} 5530 5531sp<AudioFlinger::EffectChain> AudioFlinger::ThreadBase::getEffectChain(int sessionId) 5532{ 5533 Mutex::Autolock _l(mLock); 5534 return getEffectChain_l(sessionId); 5535} 5536 5537sp<AudioFlinger::EffectChain> AudioFlinger::ThreadBase::getEffectChain_l(int sessionId) 5538{ 5539 sp<EffectChain> chain; 5540 5541 size_t size = mEffectChains.size(); 5542 for (size_t i = 0; i < size; i++) { 5543 if (mEffectChains[i]->sessionId() == sessionId) { 5544 chain = mEffectChains[i]; 5545 break; 5546 } 5547 } 5548 return chain; 5549} 5550 5551void AudioFlinger::ThreadBase::setMode(uint32_t mode) 5552{ 5553 Mutex::Autolock _l(mLock); 5554 size_t size = mEffectChains.size(); 5555 for (size_t i = 0; i < size; i++) { 5556 mEffectChains[i]->setMode_l(mode); 5557 } 5558} 5559 5560void AudioFlinger::ThreadBase::disconnectEffect(const sp<EffectModule>& effect, 5561 const wp<EffectHandle>& handle) { 5562 5563 Mutex::Autolock _l(mLock); 5564 LOGV("disconnectEffect() %p effect %p", this, effect.get()); 5565 // delete the effect module if removing last handle on it 5566 if (effect->removeHandle(handle) == 0) { 5567 removeEffect_l(effect); 5568 AudioSystem::unregisterEffect(effect->id()); 5569 } 5570} 5571 5572status_t AudioFlinger::PlaybackThread::addEffectChain_l(const sp<EffectChain>& chain) 5573{ 5574 int session = chain->sessionId(); 5575 int16_t *buffer = mMixBuffer; 5576 bool ownsBuffer = false; 5577 5578 LOGV("addEffectChain_l() %p on thread %p for session %d", chain.get(), this, session); 5579 if (session > 0) { 5580 // Only one effect chain can be present in direct output thread and it uses 5581 // the mix buffer as input 5582 if (mType != DIRECT) { 5583 size_t numSamples = mFrameCount * mChannelCount; 5584 buffer = new int16_t[numSamples]; 5585 memset(buffer, 0, numSamples * sizeof(int16_t)); 5586 LOGV("addEffectChain_l() creating new input buffer %p session %d", buffer, session); 5587 ownsBuffer = true; 5588 } 5589 5590 // Attach all tracks with same session ID to this chain. 5591 for (size_t i = 0; i < mTracks.size(); ++i) { 5592 sp<Track> track = mTracks[i]; 5593 if (session == track->sessionId()) { 5594 LOGV("addEffectChain_l() track->setMainBuffer track %p buffer %p", track.get(), buffer); 5595 track->setMainBuffer(buffer); 5596 chain->incTrackCnt(); 5597 } 5598 } 5599 5600 // indicate all active tracks in the chain 5601 for (size_t i = 0 ; i < mActiveTracks.size() ; ++i) { 5602 sp<Track> track = mActiveTracks[i].promote(); 5603 if (track == 0) continue; 5604 if (session == track->sessionId()) { 5605 LOGV("addEffectChain_l() activating track %p on session %d", track.get(), session); 5606 chain->incActiveTrackCnt(); 5607 } 5608 } 5609 } 5610 5611 chain->setInBuffer(buffer, ownsBuffer); 5612 chain->setOutBuffer(mMixBuffer); 5613 // Effect chain for session AUDIO_SESSION_OUTPUT_STAGE is inserted at end of effect 5614 // chains list in order to be processed last as it contains output stage effects 5615 // Effect chain for session AUDIO_SESSION_OUTPUT_MIX is inserted before 5616 // session AUDIO_SESSION_OUTPUT_STAGE to be processed 5617 // after track specific effects and before output stage 5618 // It is therefore mandatory that AUDIO_SESSION_OUTPUT_MIX == 0 and 5619 // that AUDIO_SESSION_OUTPUT_STAGE < AUDIO_SESSION_OUTPUT_MIX 5620 // Effect chain for other sessions are inserted at beginning of effect 5621 // chains list to be processed before output mix effects. Relative order between other 5622 // sessions is not important 5623 size_t size = mEffectChains.size(); 5624 size_t i = 0; 5625 for (i = 0; i < size; i++) { 5626 if (mEffectChains[i]->sessionId() < session) break; 5627 } 5628 mEffectChains.insertAt(chain, i); 5629 checkSuspendOnAddEffectChain_l(chain); 5630 5631 return NO_ERROR; 5632} 5633 5634size_t AudioFlinger::PlaybackThread::removeEffectChain_l(const sp<EffectChain>& chain) 5635{ 5636 int session = chain->sessionId(); 5637 5638 LOGV("removeEffectChain_l() %p from thread %p for session %d", chain.get(), this, session); 5639 5640 for (size_t i = 0; i < mEffectChains.size(); i++) { 5641 if (chain == mEffectChains[i]) { 5642 updateSuspendedSessionsOnRemoveEffectChain_l(chain); 5643 mEffectChains.removeAt(i); 5644 // detach all active tracks from the chain 5645 for (size_t i = 0 ; i < mActiveTracks.size() ; ++i) { 5646 sp<Track> track = mActiveTracks[i].promote(); 5647 if (track == 0) continue; 5648 if (session == track->sessionId()) { 5649 LOGV("removeEffectChain_l(): stopping track on chain %p for session Id: %d", 5650 chain.get(), session); 5651 chain->decActiveTrackCnt(); 5652 } 5653 } 5654 5655 // detach all tracks with same session ID from this chain 5656 for (size_t i = 0; i < mTracks.size(); ++i) { 5657 sp<Track> track = mTracks[i]; 5658 if (session == track->sessionId()) { 5659 track->setMainBuffer(mMixBuffer); 5660 chain->decTrackCnt(); 5661 } 5662 } 5663 break; 5664 } 5665 } 5666 return mEffectChains.size(); 5667} 5668 5669status_t AudioFlinger::PlaybackThread::attachAuxEffect( 5670 const sp<AudioFlinger::PlaybackThread::Track> track, int EffectId) 5671{ 5672 Mutex::Autolock _l(mLock); 5673 return attachAuxEffect_l(track, EffectId); 5674} 5675 5676status_t AudioFlinger::PlaybackThread::attachAuxEffect_l( 5677 const sp<AudioFlinger::PlaybackThread::Track> track, int EffectId) 5678{ 5679 status_t status = NO_ERROR; 5680 5681 if (EffectId == 0) { 5682 track->setAuxBuffer(0, NULL); 5683 } else { 5684 // Auxiliary effects are always in audio session AUDIO_SESSION_OUTPUT_MIX 5685 sp<EffectModule> effect = getEffect_l(AUDIO_SESSION_OUTPUT_MIX, EffectId); 5686 if (effect != 0) { 5687 if ((effect->desc().flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5688 track->setAuxBuffer(EffectId, (int32_t *)effect->inBuffer()); 5689 } else { 5690 status = INVALID_OPERATION; 5691 } 5692 } else { 5693 status = BAD_VALUE; 5694 } 5695 } 5696 return status; 5697} 5698 5699void AudioFlinger::PlaybackThread::detachAuxEffect_l(int effectId) 5700{ 5701 for (size_t i = 0; i < mTracks.size(); ++i) { 5702 sp<Track> track = mTracks[i]; 5703 if (track->auxEffectId() == effectId) { 5704 attachAuxEffect_l(track, 0); 5705 } 5706 } 5707} 5708 5709status_t AudioFlinger::RecordThread::addEffectChain_l(const sp<EffectChain>& chain) 5710{ 5711 // only one chain per input thread 5712 if (mEffectChains.size() != 0) { 5713 return INVALID_OPERATION; 5714 } 5715 LOGV("addEffectChain_l() %p on thread %p", chain.get(), this); 5716 5717 chain->setInBuffer(NULL); 5718 chain->setOutBuffer(NULL); 5719 5720 checkSuspendOnAddEffectChain_l(chain); 5721 5722 mEffectChains.add(chain); 5723 5724 return NO_ERROR; 5725} 5726 5727size_t AudioFlinger::RecordThread::removeEffectChain_l(const sp<EffectChain>& chain) 5728{ 5729 LOGV("removeEffectChain_l() %p from thread %p", chain.get(), this); 5730 LOGW_IF(mEffectChains.size() != 1, 5731 "removeEffectChain_l() %p invalid chain size %d on thread %p", 5732 chain.get(), mEffectChains.size(), this); 5733 if (mEffectChains.size() == 1) { 5734 updateSuspendedSessionsOnRemoveEffectChain_l(chain); 5735 mEffectChains.removeAt(0); 5736 } 5737 return 0; 5738} 5739 5740// ---------------------------------------------------------------------------- 5741// EffectModule implementation 5742// ---------------------------------------------------------------------------- 5743 5744#undef LOG_TAG 5745#define LOG_TAG "AudioFlinger::EffectModule" 5746 5747AudioFlinger::EffectModule::EffectModule(const wp<ThreadBase>& wThread, 5748 const wp<AudioFlinger::EffectChain>& chain, 5749 effect_descriptor_t *desc, 5750 int id, 5751 int sessionId) 5752 : mThread(wThread), mChain(chain), mId(id), mSessionId(sessionId), mEffectInterface(NULL), 5753 mStatus(NO_INIT), mState(IDLE), mSuspended(false) 5754{ 5755 LOGV("Constructor %p", this); 5756 int lStatus; 5757 sp<ThreadBase> thread = mThread.promote(); 5758 if (thread == 0) { 5759 return; 5760 } 5761 5762 memcpy(&mDescriptor, desc, sizeof(effect_descriptor_t)); 5763 5764 // create effect engine from effect factory 5765 mStatus = EffectCreate(&desc->uuid, sessionId, thread->id(), &mEffectInterface); 5766 5767 if (mStatus != NO_ERROR) { 5768 return; 5769 } 5770 lStatus = init(); 5771 if (lStatus < 0) { 5772 mStatus = lStatus; 5773 goto Error; 5774 } 5775 5776 LOGV("Constructor success name %s, Interface %p", mDescriptor.name, mEffectInterface); 5777 return; 5778Error: 5779 EffectRelease(mEffectInterface); 5780 mEffectInterface = NULL; 5781 LOGV("Constructor Error %d", mStatus); 5782} 5783 5784AudioFlinger::EffectModule::~EffectModule() 5785{ 5786 LOGV("Destructor %p", this); 5787 if (mEffectInterface != NULL) { 5788 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 5789 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) { 5790 sp<ThreadBase> thread = mThread.promote(); 5791 if (thread != 0) { 5792 thread->stream()->remove_audio_effect(thread->stream(), mEffectInterface); 5793 } 5794 } 5795 // release effect engine 5796 EffectRelease(mEffectInterface); 5797 } 5798} 5799 5800status_t AudioFlinger::EffectModule::addHandle(sp<EffectHandle>& handle) 5801{ 5802 status_t status; 5803 5804 Mutex::Autolock _l(mLock); 5805 // First handle in mHandles has highest priority and controls the effect module 5806 int priority = handle->priority(); 5807 size_t size = mHandles.size(); 5808 sp<EffectHandle> h; 5809 size_t i; 5810 for (i = 0; i < size; i++) { 5811 h = mHandles[i].promote(); 5812 if (h == 0) continue; 5813 if (h->priority() <= priority) break; 5814 } 5815 // if inserted in first place, move effect control from previous owner to this handle 5816 if (i == 0) { 5817 bool enabled = false; 5818 if (h != 0) { 5819 enabled = h->enabled(); 5820 h->setControl(false/*hasControl*/, true /*signal*/, enabled /*enabled*/); 5821 } 5822 handle->setControl(true /*hasControl*/, false /*signal*/, enabled /*enabled*/); 5823 status = NO_ERROR; 5824 } else { 5825 status = ALREADY_EXISTS; 5826 } 5827 LOGV("addHandle() %p added handle %p in position %d", this, handle.get(), i); 5828 mHandles.insertAt(handle, i); 5829 return status; 5830} 5831 5832size_t AudioFlinger::EffectModule::removeHandle(const wp<EffectHandle>& handle) 5833{ 5834 Mutex::Autolock _l(mLock); 5835 size_t size = mHandles.size(); 5836 size_t i; 5837 for (i = 0; i < size; i++) { 5838 if (mHandles[i] == handle) break; 5839 } 5840 if (i == size) { 5841 return size; 5842 } 5843 LOGV("removeHandle() %p removed handle %p in position %d", this, handle.unsafe_get(), i); 5844 5845 bool enabled = false; 5846 EffectHandle *hdl = handle.unsafe_get(); 5847 if (hdl) { 5848 LOGV("removeHandle() unsafe_get OK"); 5849 enabled = hdl->enabled(); 5850 } 5851 mHandles.removeAt(i); 5852 size = mHandles.size(); 5853 // if removed from first place, move effect control from this handle to next in line 5854 if (i == 0 && size != 0) { 5855 sp<EffectHandle> h = mHandles[0].promote(); 5856 if (h != 0) { 5857 h->setControl(true /*hasControl*/, true /*signal*/ , enabled /*enabled*/); 5858 } 5859 } 5860 5861 // Prevent calls to process() and other functions on effect interface from now on. 5862 // The effect engine will be released by the destructor when the last strong reference on 5863 // this object is released which can happen after next process is called. 5864 if (size == 0) { 5865 mState = DESTROYED; 5866 } 5867 5868 return size; 5869} 5870 5871sp<AudioFlinger::EffectHandle> AudioFlinger::EffectModule::controlHandle() 5872{ 5873 Mutex::Autolock _l(mLock); 5874 sp<EffectHandle> handle; 5875 if (mHandles.size() != 0) { 5876 handle = mHandles[0].promote(); 5877 } 5878 return handle; 5879} 5880 5881 5882 5883void AudioFlinger::EffectModule::disconnect(const wp<EffectHandle>& handle) 5884{ 5885 LOGV("disconnect() %p handle %p ", this, handle.unsafe_get()); 5886 // keep a strong reference on this EffectModule to avoid calling the 5887 // destructor before we exit 5888 sp<EffectModule> keep(this); 5889 { 5890 sp<ThreadBase> thread = mThread.promote(); 5891 if (thread != 0) { 5892 thread->disconnectEffect(keep, handle); 5893 } 5894 } 5895} 5896 5897void AudioFlinger::EffectModule::updateState() { 5898 Mutex::Autolock _l(mLock); 5899 5900 switch (mState) { 5901 case RESTART: 5902 reset_l(); 5903 // FALL THROUGH 5904 5905 case STARTING: 5906 // clear auxiliary effect input buffer for next accumulation 5907 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5908 memset(mConfig.inputCfg.buffer.raw, 5909 0, 5910 mConfig.inputCfg.buffer.frameCount*sizeof(int32_t)); 5911 } 5912 start_l(); 5913 mState = ACTIVE; 5914 break; 5915 case STOPPING: 5916 stop_l(); 5917 mDisableWaitCnt = mMaxDisableWaitCnt; 5918 mState = STOPPED; 5919 break; 5920 case STOPPED: 5921 // mDisableWaitCnt is forced to 1 by process() when the engine indicates the end of the 5922 // turn off sequence. 5923 if (--mDisableWaitCnt == 0) { 5924 reset_l(); 5925 mState = IDLE; 5926 } 5927 break; 5928 default: //IDLE , ACTIVE, DESTROYED 5929 break; 5930 } 5931} 5932 5933void AudioFlinger::EffectModule::process() 5934{ 5935 Mutex::Autolock _l(mLock); 5936 5937 if (mState == DESTROYED || mEffectInterface == NULL || 5938 mConfig.inputCfg.buffer.raw == NULL || 5939 mConfig.outputCfg.buffer.raw == NULL) { 5940 return; 5941 } 5942 5943 if (isProcessEnabled()) { 5944 // do 32 bit to 16 bit conversion for auxiliary effect input buffer 5945 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5946 AudioMixer::ditherAndClamp(mConfig.inputCfg.buffer.s32, 5947 mConfig.inputCfg.buffer.s32, 5948 mConfig.inputCfg.buffer.frameCount/2); 5949 } 5950 5951 // do the actual processing in the effect engine 5952 int ret = (*mEffectInterface)->process(mEffectInterface, 5953 &mConfig.inputCfg.buffer, 5954 &mConfig.outputCfg.buffer); 5955 5956 // force transition to IDLE state when engine is ready 5957 if (mState == STOPPED && ret == -ENODATA) { 5958 mDisableWaitCnt = 1; 5959 } 5960 5961 // clear auxiliary effect input buffer for next accumulation 5962 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5963 memset(mConfig.inputCfg.buffer.raw, 0, 5964 mConfig.inputCfg.buffer.frameCount*sizeof(int32_t)); 5965 } 5966 } else if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_INSERT && 5967 mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) { 5968 // If an insert effect is idle and input buffer is different from output buffer, 5969 // accumulate input onto output 5970 sp<EffectChain> chain = mChain.promote(); 5971 if (chain != 0 && chain->activeTrackCnt() != 0) { 5972 size_t frameCnt = mConfig.inputCfg.buffer.frameCount * 2; //always stereo here 5973 int16_t *in = mConfig.inputCfg.buffer.s16; 5974 int16_t *out = mConfig.outputCfg.buffer.s16; 5975 for (size_t i = 0; i < frameCnt; i++) { 5976 out[i] = clamp16((int32_t)out[i] + (int32_t)in[i]); 5977 } 5978 } 5979 } 5980} 5981 5982void AudioFlinger::EffectModule::reset_l() 5983{ 5984 if (mEffectInterface == NULL) { 5985 return; 5986 } 5987 (*mEffectInterface)->command(mEffectInterface, EFFECT_CMD_RESET, 0, NULL, 0, NULL); 5988} 5989 5990status_t AudioFlinger::EffectModule::configure() 5991{ 5992 uint32_t channels; 5993 if (mEffectInterface == NULL) { 5994 return NO_INIT; 5995 } 5996 5997 sp<ThreadBase> thread = mThread.promote(); 5998 if (thread == 0) { 5999 return DEAD_OBJECT; 6000 } 6001 6002 // TODO: handle configuration of effects replacing track process 6003 if (thread->channelCount() == 1) { 6004 channels = AUDIO_CHANNEL_OUT_MONO; 6005 } else { 6006 channels = AUDIO_CHANNEL_OUT_STEREO; 6007 } 6008 6009 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 6010 mConfig.inputCfg.channels = AUDIO_CHANNEL_OUT_MONO; 6011 } else { 6012 mConfig.inputCfg.channels = channels; 6013 } 6014 mConfig.outputCfg.channels = channels; 6015 mConfig.inputCfg.format = AUDIO_FORMAT_PCM_16_BIT; 6016 mConfig.outputCfg.format = AUDIO_FORMAT_PCM_16_BIT; 6017 mConfig.inputCfg.samplingRate = thread->sampleRate(); 6018 mConfig.outputCfg.samplingRate = mConfig.inputCfg.samplingRate; 6019 mConfig.inputCfg.bufferProvider.cookie = NULL; 6020 mConfig.inputCfg.bufferProvider.getBuffer = NULL; 6021 mConfig.inputCfg.bufferProvider.releaseBuffer = NULL; 6022 mConfig.outputCfg.bufferProvider.cookie = NULL; 6023 mConfig.outputCfg.bufferProvider.getBuffer = NULL; 6024 mConfig.outputCfg.bufferProvider.releaseBuffer = NULL; 6025 mConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ; 6026 // Insert effect: 6027 // - in session AUDIO_SESSION_OUTPUT_MIX or AUDIO_SESSION_OUTPUT_STAGE, 6028 // always overwrites output buffer: input buffer == output buffer 6029 // - in other sessions: 6030 // last effect in the chain accumulates in output buffer: input buffer != output buffer 6031 // other effect: overwrites output buffer: input buffer == output buffer 6032 // Auxiliary effect: 6033 // accumulates in output buffer: input buffer != output buffer 6034 // Therefore: accumulate <=> input buffer != output buffer 6035 if (mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) { 6036 mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_ACCUMULATE; 6037 } else { 6038 mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_WRITE; 6039 } 6040 mConfig.inputCfg.mask = EFFECT_CONFIG_ALL; 6041 mConfig.outputCfg.mask = EFFECT_CONFIG_ALL; 6042 mConfig.inputCfg.buffer.frameCount = thread->frameCount(); 6043 mConfig.outputCfg.buffer.frameCount = mConfig.inputCfg.buffer.frameCount; 6044 6045 LOGV("configure() %p thread %p buffer %p framecount %d", 6046 this, thread.get(), mConfig.inputCfg.buffer.raw, mConfig.inputCfg.buffer.frameCount); 6047 6048 status_t cmdStatus; 6049 uint32_t size = sizeof(int); 6050 status_t status = (*mEffectInterface)->command(mEffectInterface, 6051 EFFECT_CMD_CONFIGURE, 6052 sizeof(effect_config_t), 6053 &mConfig, 6054 &size, 6055 &cmdStatus); 6056 if (status == 0) { 6057 status = cmdStatus; 6058 } 6059 6060 mMaxDisableWaitCnt = (MAX_DISABLE_TIME_MS * mConfig.outputCfg.samplingRate) / 6061 (1000 * mConfig.outputCfg.buffer.frameCount); 6062 6063 return status; 6064} 6065 6066status_t AudioFlinger::EffectModule::init() 6067{ 6068 Mutex::Autolock _l(mLock); 6069 if (mEffectInterface == NULL) { 6070 return NO_INIT; 6071 } 6072 status_t cmdStatus; 6073 uint32_t size = sizeof(status_t); 6074 status_t status = (*mEffectInterface)->command(mEffectInterface, 6075 EFFECT_CMD_INIT, 6076 0, 6077 NULL, 6078 &size, 6079 &cmdStatus); 6080 if (status == 0) { 6081 status = cmdStatus; 6082 } 6083 return status; 6084} 6085 6086status_t AudioFlinger::EffectModule::start_l() 6087{ 6088 if (mEffectInterface == NULL) { 6089 return NO_INIT; 6090 } 6091 status_t cmdStatus; 6092 uint32_t size = sizeof(status_t); 6093 status_t status = (*mEffectInterface)->command(mEffectInterface, 6094 EFFECT_CMD_ENABLE, 6095 0, 6096 NULL, 6097 &size, 6098 &cmdStatus); 6099 if (status == 0) { 6100 status = cmdStatus; 6101 } 6102 if (status == 0 && 6103 ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 6104 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC)) { 6105 sp<ThreadBase> thread = mThread.promote(); 6106 if (thread != 0) { 6107 thread->stream()->add_audio_effect(thread->stream(), mEffectInterface); 6108 } 6109 } 6110 return status; 6111} 6112 6113status_t AudioFlinger::EffectModule::stop() 6114{ 6115 Mutex::Autolock _l(mLock); 6116 return stop_l(); 6117} 6118 6119status_t AudioFlinger::EffectModule::stop_l() 6120{ 6121 if (mEffectInterface == NULL) { 6122 return NO_INIT; 6123 } 6124 status_t cmdStatus; 6125 uint32_t size = sizeof(status_t); 6126 status_t status = (*mEffectInterface)->command(mEffectInterface, 6127 EFFECT_CMD_DISABLE, 6128 0, 6129 NULL, 6130 &size, 6131 &cmdStatus); 6132 if (status == 0) { 6133 status = cmdStatus; 6134 } 6135 if (status == 0 && 6136 ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 6137 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC)) { 6138 sp<ThreadBase> thread = mThread.promote(); 6139 if (thread != 0) { 6140 thread->stream()->remove_audio_effect(thread->stream(), mEffectInterface); 6141 } 6142 } 6143 return status; 6144} 6145 6146status_t AudioFlinger::EffectModule::command(uint32_t cmdCode, 6147 uint32_t cmdSize, 6148 void *pCmdData, 6149 uint32_t *replySize, 6150 void *pReplyData) 6151{ 6152 Mutex::Autolock _l(mLock); 6153// LOGV("command(), cmdCode: %d, mEffectInterface: %p", cmdCode, mEffectInterface); 6154 6155 if (mState == DESTROYED || mEffectInterface == NULL) { 6156 return NO_INIT; 6157 } 6158 status_t status = (*mEffectInterface)->command(mEffectInterface, 6159 cmdCode, 6160 cmdSize, 6161 pCmdData, 6162 replySize, 6163 pReplyData); 6164 if (cmdCode != EFFECT_CMD_GET_PARAM && status == NO_ERROR) { 6165 uint32_t size = (replySize == NULL) ? 0 : *replySize; 6166 for (size_t i = 1; i < mHandles.size(); i++) { 6167 sp<EffectHandle> h = mHandles[i].promote(); 6168 if (h != 0) { 6169 h->commandExecuted(cmdCode, cmdSize, pCmdData, size, pReplyData); 6170 } 6171 } 6172 } 6173 return status; 6174} 6175 6176status_t AudioFlinger::EffectModule::setEnabled(bool enabled) 6177{ 6178 Mutex::Autolock _l(mLock); 6179 LOGV("setEnabled %p enabled %d", this, enabled); 6180 6181 if (enabled != isEnabled()) { 6182 switch (mState) { 6183 // going from disabled to enabled 6184 case IDLE: 6185 mState = STARTING; 6186 break; 6187 case STOPPED: 6188 mState = RESTART; 6189 break; 6190 case STOPPING: 6191 mState = ACTIVE; 6192 break; 6193 6194 // going from enabled to disabled 6195 case RESTART: 6196 mState = STOPPED; 6197 break; 6198 case STARTING: 6199 mState = IDLE; 6200 break; 6201 case ACTIVE: 6202 mState = STOPPING; 6203 break; 6204 case DESTROYED: 6205 return NO_ERROR; // simply ignore as we are being destroyed 6206 } 6207 for (size_t i = 1; i < mHandles.size(); i++) { 6208 sp<EffectHandle> h = mHandles[i].promote(); 6209 if (h != 0) { 6210 h->setEnabled(enabled); 6211 } 6212 } 6213 } 6214 return NO_ERROR; 6215} 6216 6217bool AudioFlinger::EffectModule::isEnabled() 6218{ 6219 switch (mState) { 6220 case RESTART: 6221 case STARTING: 6222 case ACTIVE: 6223 return true; 6224 case IDLE: 6225 case STOPPING: 6226 case STOPPED: 6227 case DESTROYED: 6228 default: 6229 return false; 6230 } 6231} 6232 6233bool AudioFlinger::EffectModule::isProcessEnabled() 6234{ 6235 switch (mState) { 6236 case RESTART: 6237 case ACTIVE: 6238 case STOPPING: 6239 case STOPPED: 6240 return true; 6241 case IDLE: 6242 case STARTING: 6243 case DESTROYED: 6244 default: 6245 return false; 6246 } 6247} 6248 6249status_t AudioFlinger::EffectModule::setVolume(uint32_t *left, uint32_t *right, bool controller) 6250{ 6251 Mutex::Autolock _l(mLock); 6252 status_t status = NO_ERROR; 6253 6254 // Send volume indication if EFFECT_FLAG_VOLUME_IND is set and read back altered volume 6255 // if controller flag is set (Note that controller == TRUE => EFFECT_FLAG_VOLUME_CTRL set) 6256 if (isProcessEnabled() && 6257 ((mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL || 6258 (mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_IND)) { 6259 status_t cmdStatus; 6260 uint32_t volume[2]; 6261 uint32_t *pVolume = NULL; 6262 uint32_t size = sizeof(volume); 6263 volume[0] = *left; 6264 volume[1] = *right; 6265 if (controller) { 6266 pVolume = volume; 6267 } 6268 status = (*mEffectInterface)->command(mEffectInterface, 6269 EFFECT_CMD_SET_VOLUME, 6270 size, 6271 volume, 6272 &size, 6273 pVolume); 6274 if (controller && status == NO_ERROR && size == sizeof(volume)) { 6275 *left = volume[0]; 6276 *right = volume[1]; 6277 } 6278 } 6279 return status; 6280} 6281 6282status_t AudioFlinger::EffectModule::setDevice(uint32_t device) 6283{ 6284 Mutex::Autolock _l(mLock); 6285 status_t status = NO_ERROR; 6286 if (device && (mDescriptor.flags & EFFECT_FLAG_DEVICE_MASK) == EFFECT_FLAG_DEVICE_IND) { 6287 // audio pre processing modules on RecordThread can receive both output and 6288 // input device indication in the same call 6289 uint32_t dev = device & AUDIO_DEVICE_OUT_ALL; 6290 if (dev) { 6291 status_t cmdStatus; 6292 uint32_t size = sizeof(status_t); 6293 6294 status = (*mEffectInterface)->command(mEffectInterface, 6295 EFFECT_CMD_SET_DEVICE, 6296 sizeof(uint32_t), 6297 &dev, 6298 &size, 6299 &cmdStatus); 6300 if (status == NO_ERROR) { 6301 status = cmdStatus; 6302 } 6303 } 6304 dev = device & AUDIO_DEVICE_IN_ALL; 6305 if (dev) { 6306 status_t cmdStatus; 6307 uint32_t size = sizeof(status_t); 6308 6309 status_t status2 = (*mEffectInterface)->command(mEffectInterface, 6310 EFFECT_CMD_SET_INPUT_DEVICE, 6311 sizeof(uint32_t), 6312 &dev, 6313 &size, 6314 &cmdStatus); 6315 if (status2 == NO_ERROR) { 6316 status2 = cmdStatus; 6317 } 6318 if (status == NO_ERROR) { 6319 status = status2; 6320 } 6321 } 6322 } 6323 return status; 6324} 6325 6326status_t AudioFlinger::EffectModule::setMode(uint32_t mode) 6327{ 6328 Mutex::Autolock _l(mLock); 6329 status_t status = NO_ERROR; 6330 if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_MODE_MASK) == EFFECT_FLAG_AUDIO_MODE_IND) { 6331 status_t cmdStatus; 6332 uint32_t size = sizeof(status_t); 6333 status = (*mEffectInterface)->command(mEffectInterface, 6334 EFFECT_CMD_SET_AUDIO_MODE, 6335 sizeof(int), 6336 &mode, 6337 &size, 6338 &cmdStatus); 6339 if (status == NO_ERROR) { 6340 status = cmdStatus; 6341 } 6342 } 6343 return status; 6344} 6345 6346void AudioFlinger::EffectModule::setSuspended(bool suspended) 6347{ 6348 Mutex::Autolock _l(mLock); 6349 mSuspended = suspended; 6350} 6351bool AudioFlinger::EffectModule::suspended() 6352{ 6353 Mutex::Autolock _l(mLock); 6354 return mSuspended; 6355} 6356 6357status_t AudioFlinger::EffectModule::dump(int fd, const Vector<String16>& args) 6358{ 6359 const size_t SIZE = 256; 6360 char buffer[SIZE]; 6361 String8 result; 6362 6363 snprintf(buffer, SIZE, "\tEffect ID %d:\n", mId); 6364 result.append(buffer); 6365 6366 bool locked = tryLock(mLock); 6367 // failed to lock - AudioFlinger is probably deadlocked 6368 if (!locked) { 6369 result.append("\t\tCould not lock Fx mutex:\n"); 6370 } 6371 6372 result.append("\t\tSession Status State Engine:\n"); 6373 snprintf(buffer, SIZE, "\t\t%05d %03d %03d 0x%08x\n", 6374 mSessionId, mStatus, mState, (uint32_t)mEffectInterface); 6375 result.append(buffer); 6376 6377 result.append("\t\tDescriptor:\n"); 6378 snprintf(buffer, SIZE, "\t\t- UUID: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n", 6379 mDescriptor.uuid.timeLow, mDescriptor.uuid.timeMid, mDescriptor.uuid.timeHiAndVersion, 6380 mDescriptor.uuid.clockSeq, mDescriptor.uuid.node[0], mDescriptor.uuid.node[1],mDescriptor.uuid.node[2], 6381 mDescriptor.uuid.node[3],mDescriptor.uuid.node[4],mDescriptor.uuid.node[5]); 6382 result.append(buffer); 6383 snprintf(buffer, SIZE, "\t\t- TYPE: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n", 6384 mDescriptor.type.timeLow, mDescriptor.type.timeMid, mDescriptor.type.timeHiAndVersion, 6385 mDescriptor.type.clockSeq, mDescriptor.type.node[0], mDescriptor.type.node[1],mDescriptor.type.node[2], 6386 mDescriptor.type.node[3],mDescriptor.type.node[4],mDescriptor.type.node[5]); 6387 result.append(buffer); 6388 snprintf(buffer, SIZE, "\t\t- apiVersion: %08X\n\t\t- flags: %08X\n", 6389 mDescriptor.apiVersion, 6390 mDescriptor.flags); 6391 result.append(buffer); 6392 snprintf(buffer, SIZE, "\t\t- name: %s\n", 6393 mDescriptor.name); 6394 result.append(buffer); 6395 snprintf(buffer, SIZE, "\t\t- implementor: %s\n", 6396 mDescriptor.implementor); 6397 result.append(buffer); 6398 6399 result.append("\t\t- Input configuration:\n"); 6400 result.append("\t\t\tBuffer Frames Smp rate Channels Format\n"); 6401 snprintf(buffer, SIZE, "\t\t\t0x%08x %05d %05d %08x %d\n", 6402 (uint32_t)mConfig.inputCfg.buffer.raw, 6403 mConfig.inputCfg.buffer.frameCount, 6404 mConfig.inputCfg.samplingRate, 6405 mConfig.inputCfg.channels, 6406 mConfig.inputCfg.format); 6407 result.append(buffer); 6408 6409 result.append("\t\t- Output configuration:\n"); 6410 result.append("\t\t\tBuffer Frames Smp rate Channels Format\n"); 6411 snprintf(buffer, SIZE, "\t\t\t0x%08x %05d %05d %08x %d\n", 6412 (uint32_t)mConfig.outputCfg.buffer.raw, 6413 mConfig.outputCfg.buffer.frameCount, 6414 mConfig.outputCfg.samplingRate, 6415 mConfig.outputCfg.channels, 6416 mConfig.outputCfg.format); 6417 result.append(buffer); 6418 6419 snprintf(buffer, SIZE, "\t\t%d Clients:\n", mHandles.size()); 6420 result.append(buffer); 6421 result.append("\t\t\tPid Priority Ctrl Locked client server\n"); 6422 for (size_t i = 0; i < mHandles.size(); ++i) { 6423 sp<EffectHandle> handle = mHandles[i].promote(); 6424 if (handle != 0) { 6425 handle->dump(buffer, SIZE); 6426 result.append(buffer); 6427 } 6428 } 6429 6430 result.append("\n"); 6431 6432 write(fd, result.string(), result.length()); 6433 6434 if (locked) { 6435 mLock.unlock(); 6436 } 6437 6438 return NO_ERROR; 6439} 6440 6441// ---------------------------------------------------------------------------- 6442// EffectHandle implementation 6443// ---------------------------------------------------------------------------- 6444 6445#undef LOG_TAG 6446#define LOG_TAG "AudioFlinger::EffectHandle" 6447 6448AudioFlinger::EffectHandle::EffectHandle(const sp<EffectModule>& effect, 6449 const sp<AudioFlinger::Client>& client, 6450 const sp<IEffectClient>& effectClient, 6451 int32_t priority) 6452 : BnEffect(), 6453 mEffect(effect), mEffectClient(effectClient), mClient(client), 6454 mPriority(priority), mHasControl(false), mEnabled(false) 6455{ 6456 LOGV("constructor %p", this); 6457 6458 int bufOffset = ((sizeof(effect_param_cblk_t) - 1) / sizeof(int) + 1) * sizeof(int); 6459 mCblkMemory = client->heap()->allocate(EFFECT_PARAM_BUFFER_SIZE + bufOffset); 6460 if (mCblkMemory != 0) { 6461 mCblk = static_cast<effect_param_cblk_t *>(mCblkMemory->pointer()); 6462 6463 if (mCblk) { 6464 new(mCblk) effect_param_cblk_t(); 6465 mBuffer = (uint8_t *)mCblk + bufOffset; 6466 } 6467 } else { 6468 LOGE("not enough memory for Effect size=%u", EFFECT_PARAM_BUFFER_SIZE + sizeof(effect_param_cblk_t)); 6469 return; 6470 } 6471} 6472 6473AudioFlinger::EffectHandle::~EffectHandle() 6474{ 6475 LOGV("Destructor %p", this); 6476 disconnect(); 6477 LOGV("Destructor DONE %p", this); 6478} 6479 6480status_t AudioFlinger::EffectHandle::enable() 6481{ 6482 LOGV("enable %p", this); 6483 if (!mHasControl) return INVALID_OPERATION; 6484 if (mEffect == 0) return DEAD_OBJECT; 6485 6486 mEnabled = true; 6487 6488 sp<ThreadBase> thread = mEffect->thread().promote(); 6489 if (thread != 0) { 6490 thread->checkSuspendOnEffectEnabled(mEffect, true, mEffect->sessionId()); 6491 } 6492 6493 // checkSuspendOnEffectEnabled() can suspend this same effect when enabled 6494 if (mEffect->suspended()) { 6495 return NO_ERROR; 6496 } 6497 6498 return mEffect->setEnabled(true); 6499} 6500 6501status_t AudioFlinger::EffectHandle::disable() 6502{ 6503 LOGV("disable %p", this); 6504 if (!mHasControl) return INVALID_OPERATION; 6505 if (mEffect == 0) return DEAD_OBJECT; 6506 6507 mEnabled = false; 6508 6509 if (mEffect->suspended()) { 6510 return NO_ERROR; 6511 } 6512 6513 status_t status = mEffect->setEnabled(false); 6514 6515 sp<ThreadBase> thread = mEffect->thread().promote(); 6516 if (thread != 0) { 6517 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 6518 } 6519 6520 return status; 6521} 6522 6523void AudioFlinger::EffectHandle::disconnect() 6524{ 6525 LOGV("disconnect %p", this); 6526 if (mEffect == 0) { 6527 return; 6528 } 6529 6530 mEffect->disconnect(this); 6531 6532 sp<ThreadBase> thread = mEffect->thread().promote(); 6533 if (thread != 0) { 6534 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 6535 } 6536 6537 // release sp on module => module destructor can be called now 6538 mEffect.clear(); 6539 if (mCblk) { 6540 mCblk->~effect_param_cblk_t(); // destroy our shared-structure. 6541 } 6542 mCblkMemory.clear(); // and free the shared memory 6543 if (mClient != 0) { 6544 Mutex::Autolock _l(mClient->audioFlinger()->mLock); 6545 mClient.clear(); 6546 } 6547} 6548 6549status_t AudioFlinger::EffectHandle::command(uint32_t cmdCode, 6550 uint32_t cmdSize, 6551 void *pCmdData, 6552 uint32_t *replySize, 6553 void *pReplyData) 6554{ 6555// LOGV("command(), cmdCode: %d, mHasControl: %d, mEffect: %p", 6556// cmdCode, mHasControl, (mEffect == 0) ? 0 : mEffect.get()); 6557 6558 // only get parameter command is permitted for applications not controlling the effect 6559 if (!mHasControl && cmdCode != EFFECT_CMD_GET_PARAM) { 6560 return INVALID_OPERATION; 6561 } 6562 if (mEffect == 0) return DEAD_OBJECT; 6563 6564 // handle commands that are not forwarded transparently to effect engine 6565 if (cmdCode == EFFECT_CMD_SET_PARAM_COMMIT) { 6566 // No need to trylock() here as this function is executed in the binder thread serving a particular client process: 6567 // no risk to block the whole media server process or mixer threads is we are stuck here 6568 Mutex::Autolock _l(mCblk->lock); 6569 if (mCblk->clientIndex > EFFECT_PARAM_BUFFER_SIZE || 6570 mCblk->serverIndex > EFFECT_PARAM_BUFFER_SIZE) { 6571 mCblk->serverIndex = 0; 6572 mCblk->clientIndex = 0; 6573 return BAD_VALUE; 6574 } 6575 status_t status = NO_ERROR; 6576 while (mCblk->serverIndex < mCblk->clientIndex) { 6577 int reply; 6578 uint32_t rsize = sizeof(int); 6579 int *p = (int *)(mBuffer + mCblk->serverIndex); 6580 int size = *p++; 6581 if (((uint8_t *)p + size) > mBuffer + mCblk->clientIndex) { 6582 LOGW("command(): invalid parameter block size"); 6583 break; 6584 } 6585 effect_param_t *param = (effect_param_t *)p; 6586 if (param->psize == 0 || param->vsize == 0) { 6587 LOGW("command(): null parameter or value size"); 6588 mCblk->serverIndex += size; 6589 continue; 6590 } 6591 uint32_t psize = sizeof(effect_param_t) + 6592 ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) + 6593 param->vsize; 6594 status_t ret = mEffect->command(EFFECT_CMD_SET_PARAM, 6595 psize, 6596 p, 6597 &rsize, 6598 &reply); 6599 // stop at first error encountered 6600 if (ret != NO_ERROR) { 6601 status = ret; 6602 *(int *)pReplyData = reply; 6603 break; 6604 } else if (reply != NO_ERROR) { 6605 *(int *)pReplyData = reply; 6606 break; 6607 } 6608 mCblk->serverIndex += size; 6609 } 6610 mCblk->serverIndex = 0; 6611 mCblk->clientIndex = 0; 6612 return status; 6613 } else if (cmdCode == EFFECT_CMD_ENABLE) { 6614 *(int *)pReplyData = NO_ERROR; 6615 return enable(); 6616 } else if (cmdCode == EFFECT_CMD_DISABLE) { 6617 *(int *)pReplyData = NO_ERROR; 6618 return disable(); 6619 } 6620 6621 return mEffect->command(cmdCode, cmdSize, pCmdData, replySize, pReplyData); 6622} 6623 6624sp<IMemory> AudioFlinger::EffectHandle::getCblk() const { 6625 return mCblkMemory; 6626} 6627 6628void AudioFlinger::EffectHandle::setControl(bool hasControl, bool signal, bool enabled) 6629{ 6630 LOGV("setControl %p control %d", this, hasControl); 6631 6632 mHasControl = hasControl; 6633 mEnabled = enabled; 6634 6635 if (signal && mEffectClient != 0) { 6636 mEffectClient->controlStatusChanged(hasControl); 6637 } 6638} 6639 6640void AudioFlinger::EffectHandle::commandExecuted(uint32_t cmdCode, 6641 uint32_t cmdSize, 6642 void *pCmdData, 6643 uint32_t replySize, 6644 void *pReplyData) 6645{ 6646 if (mEffectClient != 0) { 6647 mEffectClient->commandExecuted(cmdCode, cmdSize, pCmdData, replySize, pReplyData); 6648 } 6649} 6650 6651 6652 6653void AudioFlinger::EffectHandle::setEnabled(bool enabled) 6654{ 6655 if (mEffectClient != 0) { 6656 mEffectClient->enableStatusChanged(enabled); 6657 } 6658} 6659 6660status_t AudioFlinger::EffectHandle::onTransact( 6661 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 6662{ 6663 return BnEffect::onTransact(code, data, reply, flags); 6664} 6665 6666 6667void AudioFlinger::EffectHandle::dump(char* buffer, size_t size) 6668{ 6669 bool locked = tryLock(mCblk->lock); 6670 6671 snprintf(buffer, size, "\t\t\t%05d %05d %01u %01u %05u %05u\n", 6672 (mClient == NULL) ? getpid() : mClient->pid(), 6673 mPriority, 6674 mHasControl, 6675 !locked, 6676 mCblk->clientIndex, 6677 mCblk->serverIndex 6678 ); 6679 6680 if (locked) { 6681 mCblk->lock.unlock(); 6682 } 6683} 6684 6685#undef LOG_TAG 6686#define LOG_TAG "AudioFlinger::EffectChain" 6687 6688AudioFlinger::EffectChain::EffectChain(const wp<ThreadBase>& wThread, 6689 int sessionId) 6690 : mThread(wThread), mSessionId(sessionId), mActiveTrackCnt(0), mTrackCnt(0), 6691 mOwnInBuffer(false), mVolumeCtrlIdx(-1), mLeftVolume(UINT_MAX), mRightVolume(UINT_MAX), 6692 mNewLeftVolume(UINT_MAX), mNewRightVolume(UINT_MAX) 6693{ 6694 mStrategy = AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC); 6695} 6696 6697AudioFlinger::EffectChain::~EffectChain() 6698{ 6699 if (mOwnInBuffer) { 6700 delete mInBuffer; 6701 } 6702 6703} 6704 6705// getEffectFromDesc_l() must be called with ThreadBase::mLock held 6706sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromDesc_l(effect_descriptor_t *descriptor) 6707{ 6708 sp<EffectModule> effect; 6709 size_t size = mEffects.size(); 6710 6711 for (size_t i = 0; i < size; i++) { 6712 if (memcmp(&mEffects[i]->desc().uuid, &descriptor->uuid, sizeof(effect_uuid_t)) == 0) { 6713 effect = mEffects[i]; 6714 break; 6715 } 6716 } 6717 return effect; 6718} 6719 6720// getEffectFromId_l() must be called with ThreadBase::mLock held 6721sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromId_l(int id) 6722{ 6723 sp<EffectModule> effect; 6724 size_t size = mEffects.size(); 6725 6726 for (size_t i = 0; i < size; i++) { 6727 // by convention, return first effect if id provided is 0 (0 is never a valid id) 6728 if (id == 0 || mEffects[i]->id() == id) { 6729 effect = mEffects[i]; 6730 break; 6731 } 6732 } 6733 return effect; 6734} 6735 6736// getEffectFromType_l() must be called with ThreadBase::mLock held 6737sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromType_l( 6738 const effect_uuid_t *type) 6739{ 6740 sp<EffectModule> effect; 6741 size_t size = mEffects.size(); 6742 6743 for (size_t i = 0; i < size; i++) { 6744 if (memcmp(&mEffects[i]->desc().type, type, sizeof(effect_uuid_t)) == 0) { 6745 effect = mEffects[i]; 6746 break; 6747 } 6748 } 6749 return effect; 6750} 6751 6752// Must be called with EffectChain::mLock locked 6753void AudioFlinger::EffectChain::process_l() 6754{ 6755 sp<ThreadBase> thread = mThread.promote(); 6756 if (thread == 0) { 6757 LOGW("process_l(): cannot promote mixer thread"); 6758 return; 6759 } 6760 bool isGlobalSession = (mSessionId == AUDIO_SESSION_OUTPUT_MIX) || 6761 (mSessionId == AUDIO_SESSION_OUTPUT_STAGE); 6762 bool tracksOnSession = false; 6763 if (!isGlobalSession) { 6764 tracksOnSession = (trackCnt() != 0); 6765 } 6766 6767 // if no track is active, input buffer must be cleared here as the mixer process 6768 // will not do it 6769 if (tracksOnSession && 6770 activeTrackCnt() == 0) { 6771 size_t numSamples = thread->frameCount() * thread->channelCount(); 6772 memset(mInBuffer, 0, numSamples * sizeof(int16_t)); 6773 } 6774 6775 size_t size = mEffects.size(); 6776 // do not process effect if no track is present in same audio session 6777 if (isGlobalSession || tracksOnSession) { 6778 for (size_t i = 0; i < size; i++) { 6779 mEffects[i]->process(); 6780 } 6781 } 6782 for (size_t i = 0; i < size; i++) { 6783 mEffects[i]->updateState(); 6784 } 6785} 6786 6787// addEffect_l() must be called with PlaybackThread::mLock held 6788status_t AudioFlinger::EffectChain::addEffect_l(const sp<EffectModule>& effect) 6789{ 6790 effect_descriptor_t desc = effect->desc(); 6791 uint32_t insertPref = desc.flags & EFFECT_FLAG_INSERT_MASK; 6792 6793 Mutex::Autolock _l(mLock); 6794 effect->setChain(this); 6795 sp<ThreadBase> thread = mThread.promote(); 6796 if (thread == 0) { 6797 return NO_INIT; 6798 } 6799 effect->setThread(thread); 6800 6801 if ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 6802 // Auxiliary effects are inserted at the beginning of mEffects vector as 6803 // they are processed first and accumulated in chain input buffer 6804 mEffects.insertAt(effect, 0); 6805 6806 // the input buffer for auxiliary effect contains mono samples in 6807 // 32 bit format. This is to avoid saturation in AudoMixer 6808 // accumulation stage. Saturation is done in EffectModule::process() before 6809 // calling the process in effect engine 6810 size_t numSamples = thread->frameCount(); 6811 int32_t *buffer = new int32_t[numSamples]; 6812 memset(buffer, 0, numSamples * sizeof(int32_t)); 6813 effect->setInBuffer((int16_t *)buffer); 6814 // auxiliary effects output samples to chain input buffer for further processing 6815 // by insert effects 6816 effect->setOutBuffer(mInBuffer); 6817 } else { 6818 // Insert effects are inserted at the end of mEffects vector as they are processed 6819 // after track and auxiliary effects. 6820 // Insert effect order as a function of indicated preference: 6821 // if EFFECT_FLAG_INSERT_EXCLUSIVE, insert in first position or reject if 6822 // another effect is present 6823 // else if EFFECT_FLAG_INSERT_FIRST, insert in first position or after the 6824 // last effect claiming first position 6825 // else if EFFECT_FLAG_INSERT_LAST, insert in last position or before the 6826 // first effect claiming last position 6827 // else if EFFECT_FLAG_INSERT_ANY insert after first or before last 6828 // Reject insertion if an effect with EFFECT_FLAG_INSERT_EXCLUSIVE is 6829 // already present 6830 6831 int size = (int)mEffects.size(); 6832 int idx_insert = size; 6833 int idx_insert_first = -1; 6834 int idx_insert_last = -1; 6835 6836 for (int i = 0; i < size; i++) { 6837 effect_descriptor_t d = mEffects[i]->desc(); 6838 uint32_t iMode = d.flags & EFFECT_FLAG_TYPE_MASK; 6839 uint32_t iPref = d.flags & EFFECT_FLAG_INSERT_MASK; 6840 if (iMode == EFFECT_FLAG_TYPE_INSERT) { 6841 // check invalid effect chaining combinations 6842 if (insertPref == EFFECT_FLAG_INSERT_EXCLUSIVE || 6843 iPref == EFFECT_FLAG_INSERT_EXCLUSIVE) { 6844 LOGW("addEffect_l() could not insert effect %s: exclusive conflict with %s", desc.name, d.name); 6845 return INVALID_OPERATION; 6846 } 6847 // remember position of first insert effect and by default 6848 // select this as insert position for new effect 6849 if (idx_insert == size) { 6850 idx_insert = i; 6851 } 6852 // remember position of last insert effect claiming 6853 // first position 6854 if (iPref == EFFECT_FLAG_INSERT_FIRST) { 6855 idx_insert_first = i; 6856 } 6857 // remember position of first insert effect claiming 6858 // last position 6859 if (iPref == EFFECT_FLAG_INSERT_LAST && 6860 idx_insert_last == -1) { 6861 idx_insert_last = i; 6862 } 6863 } 6864 } 6865 6866 // modify idx_insert from first position if needed 6867 if (insertPref == EFFECT_FLAG_INSERT_LAST) { 6868 if (idx_insert_last != -1) { 6869 idx_insert = idx_insert_last; 6870 } else { 6871 idx_insert = size; 6872 } 6873 } else { 6874 if (idx_insert_first != -1) { 6875 idx_insert = idx_insert_first + 1; 6876 } 6877 } 6878 6879 // always read samples from chain input buffer 6880 effect->setInBuffer(mInBuffer); 6881 6882 // if last effect in the chain, output samples to chain 6883 // output buffer, otherwise to chain input buffer 6884 if (idx_insert == size) { 6885 if (idx_insert != 0) { 6886 mEffects[idx_insert-1]->setOutBuffer(mInBuffer); 6887 mEffects[idx_insert-1]->configure(); 6888 } 6889 effect->setOutBuffer(mOutBuffer); 6890 } else { 6891 effect->setOutBuffer(mInBuffer); 6892 } 6893 mEffects.insertAt(effect, idx_insert); 6894 6895 LOGV("addEffect_l() effect %p, added in chain %p at rank %d", effect.get(), this, idx_insert); 6896 } 6897 effect->configure(); 6898 return NO_ERROR; 6899} 6900 6901// removeEffect_l() must be called with PlaybackThread::mLock held 6902size_t AudioFlinger::EffectChain::removeEffect_l(const sp<EffectModule>& effect) 6903{ 6904 Mutex::Autolock _l(mLock); 6905 int size = (int)mEffects.size(); 6906 int i; 6907 uint32_t type = effect->desc().flags & EFFECT_FLAG_TYPE_MASK; 6908 6909 for (i = 0; i < size; i++) { 6910 if (effect == mEffects[i]) { 6911 // calling stop here will remove pre-processing effect from the audio HAL. 6912 // This is safe as we hold the EffectChain mutex which guarantees that we are not in 6913 // the middle of a read from audio HAL 6914 mEffects[i]->stop(); 6915 if (type == EFFECT_FLAG_TYPE_AUXILIARY) { 6916 delete[] effect->inBuffer(); 6917 } else { 6918 if (i == size - 1 && i != 0) { 6919 mEffects[i - 1]->setOutBuffer(mOutBuffer); 6920 mEffects[i - 1]->configure(); 6921 } 6922 } 6923 mEffects.removeAt(i); 6924 LOGV("removeEffect_l() effect %p, removed from chain %p at rank %d", effect.get(), this, i); 6925 break; 6926 } 6927 } 6928 6929 return mEffects.size(); 6930} 6931 6932// setDevice_l() must be called with PlaybackThread::mLock held 6933void AudioFlinger::EffectChain::setDevice_l(uint32_t device) 6934{ 6935 size_t size = mEffects.size(); 6936 for (size_t i = 0; i < size; i++) { 6937 mEffects[i]->setDevice(device); 6938 } 6939} 6940 6941// setMode_l() must be called with PlaybackThread::mLock held 6942void AudioFlinger::EffectChain::setMode_l(uint32_t mode) 6943{ 6944 size_t size = mEffects.size(); 6945 for (size_t i = 0; i < size; i++) { 6946 mEffects[i]->setMode(mode); 6947 } 6948} 6949 6950// setVolume_l() must be called with PlaybackThread::mLock held 6951bool AudioFlinger::EffectChain::setVolume_l(uint32_t *left, uint32_t *right) 6952{ 6953 uint32_t newLeft = *left; 6954 uint32_t newRight = *right; 6955 bool hasControl = false; 6956 int ctrlIdx = -1; 6957 size_t size = mEffects.size(); 6958 6959 // first update volume controller 6960 for (size_t i = size; i > 0; i--) { 6961 if (mEffects[i - 1]->isProcessEnabled() && 6962 (mEffects[i - 1]->desc().flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL) { 6963 ctrlIdx = i - 1; 6964 hasControl = true; 6965 break; 6966 } 6967 } 6968 6969 if (ctrlIdx == mVolumeCtrlIdx && *left == mLeftVolume && *right == mRightVolume) { 6970 if (hasControl) { 6971 *left = mNewLeftVolume; 6972 *right = mNewRightVolume; 6973 } 6974 return hasControl; 6975 } 6976 6977 mVolumeCtrlIdx = ctrlIdx; 6978 mLeftVolume = newLeft; 6979 mRightVolume = newRight; 6980 6981 // second get volume update from volume controller 6982 if (ctrlIdx >= 0) { 6983 mEffects[ctrlIdx]->setVolume(&newLeft, &newRight, true); 6984 mNewLeftVolume = newLeft; 6985 mNewRightVolume = newRight; 6986 } 6987 // then indicate volume to all other effects in chain. 6988 // Pass altered volume to effects before volume controller 6989 // and requested volume to effects after controller 6990 uint32_t lVol = newLeft; 6991 uint32_t rVol = newRight; 6992 6993 for (size_t i = 0; i < size; i++) { 6994 if ((int)i == ctrlIdx) continue; 6995 // this also works for ctrlIdx == -1 when there is no volume controller 6996 if ((int)i > ctrlIdx) { 6997 lVol = *left; 6998 rVol = *right; 6999 } 7000 mEffects[i]->setVolume(&lVol, &rVol, false); 7001 } 7002 *left = newLeft; 7003 *right = newRight; 7004 7005 return hasControl; 7006} 7007 7008status_t AudioFlinger::EffectChain::dump(int fd, const Vector<String16>& args) 7009{ 7010 const size_t SIZE = 256; 7011 char buffer[SIZE]; 7012 String8 result; 7013 7014 snprintf(buffer, SIZE, "Effects for session %d:\n", mSessionId); 7015 result.append(buffer); 7016 7017 bool locked = tryLock(mLock); 7018 // failed to lock - AudioFlinger is probably deadlocked 7019 if (!locked) { 7020 result.append("\tCould not lock mutex:\n"); 7021 } 7022 7023 result.append("\tNum fx In buffer Out buffer Active tracks:\n"); 7024 snprintf(buffer, SIZE, "\t%02d 0x%08x 0x%08x %d\n", 7025 mEffects.size(), 7026 (uint32_t)mInBuffer, 7027 (uint32_t)mOutBuffer, 7028 mActiveTrackCnt); 7029 result.append(buffer); 7030 write(fd, result.string(), result.size()); 7031 7032 for (size_t i = 0; i < mEffects.size(); ++i) { 7033 sp<EffectModule> effect = mEffects[i]; 7034 if (effect != 0) { 7035 effect->dump(fd, args); 7036 } 7037 } 7038 7039 if (locked) { 7040 mLock.unlock(); 7041 } 7042 7043 return NO_ERROR; 7044} 7045 7046// must be called with ThreadBase::mLock held 7047void AudioFlinger::EffectChain::setEffectSuspended_l( 7048 const effect_uuid_t *type, bool suspend) 7049{ 7050 sp<SuspendedEffectDesc> desc; 7051 // use effect type UUID timelow as key as there is no real risk of identical 7052 // timeLow fields among effect type UUIDs. 7053 int index = mSuspendedEffects.indexOfKey(type->timeLow); 7054 if (suspend) { 7055 if (index >= 0) { 7056 desc = mSuspendedEffects.valueAt(index); 7057 } else { 7058 desc = new SuspendedEffectDesc(); 7059 memcpy(&desc->mType, type, sizeof(effect_uuid_t)); 7060 mSuspendedEffects.add(type->timeLow, desc); 7061 LOGV("setEffectSuspended_l() add entry for %08x", type->timeLow); 7062 } 7063 if (desc->mRefCount++ == 0) { 7064 sp<EffectModule> effect = getEffectIfEnabled(type); 7065 if (effect != 0) { 7066 desc->mEffect = effect; 7067 effect->setSuspended(true); 7068 effect->setEnabled(false); 7069 } 7070 } 7071 } else { 7072 if (index < 0) { 7073 return; 7074 } 7075 desc = mSuspendedEffects.valueAt(index); 7076 if (desc->mRefCount <= 0) { 7077 LOGW("setEffectSuspended_l() restore refcount should not be 0 %d", desc->mRefCount); 7078 desc->mRefCount = 1; 7079 } 7080 if (--desc->mRefCount == 0) { 7081 LOGV("setEffectSuspended_l() remove entry for %08x", mSuspendedEffects.keyAt(index)); 7082 if (desc->mEffect != 0) { 7083 sp<EffectModule> effect = desc->mEffect.promote(); 7084 if (effect != 0) { 7085 effect->setSuspended(false); 7086 sp<EffectHandle> handle = effect->controlHandle(); 7087 if (handle != 0) { 7088 effect->setEnabled(handle->enabled()); 7089 } 7090 } 7091 desc->mEffect.clear(); 7092 } 7093 mSuspendedEffects.removeItemsAt(index); 7094 } 7095 } 7096} 7097 7098// must be called with ThreadBase::mLock held 7099void AudioFlinger::EffectChain::setEffectSuspendedAll_l(bool suspend) 7100{ 7101 sp<SuspendedEffectDesc> desc; 7102 7103 int index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll); 7104 if (suspend) { 7105 if (index >= 0) { 7106 desc = mSuspendedEffects.valueAt(index); 7107 } else { 7108 desc = new SuspendedEffectDesc(); 7109 mSuspendedEffects.add((int)kKeyForSuspendAll, desc); 7110 LOGV("setEffectSuspendedAll_l() add entry for 0"); 7111 } 7112 if (desc->mRefCount++ == 0) { 7113 Vector< sp<EffectModule> > effects = getSuspendEligibleEffects(); 7114 for (size_t i = 0; i < effects.size(); i++) { 7115 setEffectSuspended_l(&effects[i]->desc().type, true); 7116 } 7117 } 7118 } else { 7119 if (index < 0) { 7120 return; 7121 } 7122 desc = mSuspendedEffects.valueAt(index); 7123 if (desc->mRefCount <= 0) { 7124 LOGW("setEffectSuspendedAll_l() restore refcount should not be 0 %d", desc->mRefCount); 7125 desc->mRefCount = 1; 7126 } 7127 if (--desc->mRefCount == 0) { 7128 Vector<const effect_uuid_t *> types; 7129 for (size_t i = 0; i < mSuspendedEffects.size(); i++) { 7130 if (mSuspendedEffects.keyAt(i) == (int)kKeyForSuspendAll) { 7131 continue; 7132 } 7133 types.add(&mSuspendedEffects.valueAt(i)->mType); 7134 } 7135 for (size_t i = 0; i < types.size(); i++) { 7136 setEffectSuspended_l(types[i], false); 7137 } 7138 LOGV("setEffectSuspendedAll_l() remove entry for %08x", mSuspendedEffects.keyAt(index)); 7139 mSuspendedEffects.removeItem((int)kKeyForSuspendAll); 7140 } 7141 } 7142} 7143 7144Vector< sp<AudioFlinger::EffectModule> > AudioFlinger::EffectChain::getSuspendEligibleEffects() 7145{ 7146 Vector< sp<EffectModule> > effects; 7147 for (size_t i = 0; i < mEffects.size(); i++) { 7148 effect_descriptor_t desc = mEffects[i]->desc(); 7149 // auxiliary effects and vizualizer are never suspended on output mix 7150 if ((mSessionId == AUDIO_SESSION_OUTPUT_MIX) && ( 7151 ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) || 7152 (memcmp(&desc.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0))) { 7153 continue; 7154 } 7155 effects.add(mEffects[i]); 7156 } 7157 return effects; 7158} 7159 7160sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectIfEnabled( 7161 const effect_uuid_t *type) 7162{ 7163 sp<EffectModule> effect; 7164 effect = getEffectFromType_l(type); 7165 if (effect != 0 && !effect->isEnabled()) { 7166 effect.clear(); 7167 } 7168 return effect; 7169} 7170 7171void AudioFlinger::EffectChain::checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, 7172 bool enabled) 7173{ 7174 int index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow); 7175 if (enabled) { 7176 if (index < 0) { 7177 // if the effect is not suspend check if all effects are suspended 7178 index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll); 7179 if (index < 0) { 7180 return; 7181 } 7182 setEffectSuspended_l(&effect->desc().type, enabled); 7183 index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow); 7184 } 7185 LOGV("checkSuspendOnEffectEnabled() enable suspending fx %08x", 7186 effect->desc().type.timeLow); 7187 sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index); 7188 // if effect is requested to suspended but was not yet enabled, supend it now. 7189 if (desc->mEffect == 0) { 7190 desc->mEffect = effect; 7191 effect->setEnabled(false); 7192 effect->setSuspended(true); 7193 } 7194 } else { 7195 if (index < 0) { 7196 return; 7197 } 7198 LOGV("checkSuspendOnEffectEnabled() disable restoring fx %08x", 7199 effect->desc().type.timeLow); 7200 sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index); 7201 desc->mEffect.clear(); 7202 effect->setSuspended(false); 7203 } 7204} 7205 7206#undef LOG_TAG 7207#define LOG_TAG "AudioFlinger" 7208 7209// ---------------------------------------------------------------------------- 7210 7211status_t AudioFlinger::onTransact( 7212 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 7213{ 7214 return BnAudioFlinger::onTransact(code, data, reply, flags); 7215} 7216 7217}; // namespace android 7218