AudioFlinger.cpp revision 59255e4fc7d8ff52874b85b1988dc0785140cf81
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 55#include <cpustats/ThreadCpuUsage.h> 56#include <powermanager/PowerManager.h> 57// #define DEBUG_CPU_USAGE 10 // log statistics every n wall clock seconds 58 59// ---------------------------------------------------------------------------- 60 61 62namespace android { 63 64static const char* kDeadlockedString = "AudioFlinger may be deadlocked\n"; 65static const char* kHardwareLockedString = "Hardware lock is taken\n"; 66 67//static const nsecs_t kStandbyTimeInNsecs = seconds(3); 68static const float MAX_GAIN = 4096.0f; 69static const float MAX_GAIN_INT = 0x1000; 70 71// retry counts for buffer fill timeout 72// 50 * ~20msecs = 1 second 73static const int8_t kMaxTrackRetries = 50; 74static const int8_t kMaxTrackStartupRetries = 50; 75// allow less retry attempts on direct output thread. 76// direct outputs can be a scarce resource in audio hardware and should 77// be released as quickly as possible. 78static const int8_t kMaxTrackRetriesDirect = 2; 79 80static const int kDumpLockRetries = 50; 81static const int kDumpLockSleep = 20000; 82 83static const nsecs_t kWarningThrottle = seconds(5); 84 85// RecordThread loop sleep time upon application overrun or audio HAL read error 86static const int kRecordThreadSleepUs = 5000; 87 88// ---------------------------------------------------------------------------- 89 90static bool recordingAllowed() { 91 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 92 bool ok = checkCallingPermission(String16("android.permission.RECORD_AUDIO")); 93 if (!ok) LOGE("Request requires android.permission.RECORD_AUDIO"); 94 return ok; 95} 96 97static bool settingsAllowed() { 98 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 99 bool ok = checkCallingPermission(String16("android.permission.MODIFY_AUDIO_SETTINGS")); 100 if (!ok) LOGE("Request requires android.permission.MODIFY_AUDIO_SETTINGS"); 101 return ok; 102} 103 104// To collect the amplifier usage 105static void addBatteryData(uint32_t params) { 106 sp<IBinder> binder = 107 defaultServiceManager()->getService(String16("media.player")); 108 sp<IMediaPlayerService> service = interface_cast<IMediaPlayerService>(binder); 109 if (service.get() == NULL) { 110 LOGW("Cannot connect to the MediaPlayerService for battery tracking"); 111 return; 112 } 113 114 service->addBatteryData(params); 115} 116 117static int load_audio_interface(const char *if_name, const hw_module_t **mod, 118 audio_hw_device_t **dev) 119{ 120 int rc; 121 122 rc = hw_get_module_by_class(AUDIO_HARDWARE_MODULE_ID, if_name, mod); 123 if (rc) 124 goto out; 125 126 rc = audio_hw_device_open(*mod, dev); 127 LOGE_IF(rc, "couldn't open audio hw device in %s.%s (%s)", 128 AUDIO_HARDWARE_MODULE_ID, if_name, strerror(-rc)); 129 if (rc) 130 goto out; 131 132 return 0; 133 134out: 135 *mod = NULL; 136 *dev = NULL; 137 return rc; 138} 139 140static const char *audio_interfaces[] = { 141 "primary", 142 "a2dp", 143 "usb", 144}; 145#define ARRAY_SIZE(x) (sizeof((x))/sizeof(((x)[0]))) 146 147// ---------------------------------------------------------------------------- 148 149AudioFlinger::AudioFlinger() 150 : BnAudioFlinger(), 151 mPrimaryHardwareDev(0), mMasterVolume(1.0f), mMasterMute(false), mNextUniqueId(1) 152{ 153} 154 155void AudioFlinger::onFirstRef() 156{ 157 int rc = 0; 158 159 Mutex::Autolock _l(mLock); 160 161 /* TODO: move all this work into an Init() function */ 162 mHardwareStatus = AUDIO_HW_IDLE; 163 164 for (size_t i = 0; i < ARRAY_SIZE(audio_interfaces); i++) { 165 const hw_module_t *mod; 166 audio_hw_device_t *dev; 167 168 rc = load_audio_interface(audio_interfaces[i], &mod, &dev); 169 if (rc) 170 continue; 171 172 LOGI("Loaded %s audio interface from %s (%s)", audio_interfaces[i], 173 mod->name, mod->id); 174 mAudioHwDevs.push(dev); 175 176 if (!mPrimaryHardwareDev) { 177 mPrimaryHardwareDev = dev; 178 LOGI("Using '%s' (%s.%s) as the primary audio interface", 179 mod->name, mod->id, audio_interfaces[i]); 180 } 181 } 182 183 mHardwareStatus = AUDIO_HW_INIT; 184 185 if (!mPrimaryHardwareDev || mAudioHwDevs.size() == 0) { 186 LOGE("Primary audio interface not found"); 187 return; 188 } 189 190 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 191 audio_hw_device_t *dev = mAudioHwDevs[i]; 192 193 mHardwareStatus = AUDIO_HW_INIT; 194 rc = dev->init_check(dev); 195 if (rc == 0) { 196 AutoMutex lock(mHardwareLock); 197 198 mMode = AUDIO_MODE_NORMAL; 199 mHardwareStatus = AUDIO_HW_SET_MODE; 200 dev->set_mode(dev, mMode); 201 mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME; 202 dev->set_master_volume(dev, 1.0f); 203 mHardwareStatus = AUDIO_HW_IDLE; 204 } 205 } 206} 207 208status_t AudioFlinger::initCheck() const 209{ 210 Mutex::Autolock _l(mLock); 211 if (mPrimaryHardwareDev == NULL || mAudioHwDevs.size() == 0) 212 return NO_INIT; 213 return NO_ERROR; 214} 215 216AudioFlinger::~AudioFlinger() 217{ 218 int num_devs = mAudioHwDevs.size(); 219 220 while (!mRecordThreads.isEmpty()) { 221 // closeInput() will remove first entry from mRecordThreads 222 closeInput(mRecordThreads.keyAt(0)); 223 } 224 while (!mPlaybackThreads.isEmpty()) { 225 // closeOutput() will remove first entry from mPlaybackThreads 226 closeOutput(mPlaybackThreads.keyAt(0)); 227 } 228 229 for (int i = 0; i < num_devs; i++) { 230 audio_hw_device_t *dev = mAudioHwDevs[i]; 231 audio_hw_device_close(dev); 232 } 233 mAudioHwDevs.clear(); 234} 235 236audio_hw_device_t* AudioFlinger::findSuitableHwDev_l(uint32_t devices) 237{ 238 /* first matching HW device is returned */ 239 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 240 audio_hw_device_t *dev = mAudioHwDevs[i]; 241 if ((dev->get_supported_devices(dev) & devices) == devices) 242 return dev; 243 } 244 return NULL; 245} 246 247status_t AudioFlinger::dumpClients(int fd, const Vector<String16>& args) 248{ 249 const size_t SIZE = 256; 250 char buffer[SIZE]; 251 String8 result; 252 253 result.append("Clients:\n"); 254 for (size_t i = 0; i < mClients.size(); ++i) { 255 wp<Client> wClient = mClients.valueAt(i); 256 if (wClient != 0) { 257 sp<Client> client = wClient.promote(); 258 if (client != 0) { 259 snprintf(buffer, SIZE, " pid: %d\n", client->pid()); 260 result.append(buffer); 261 } 262 } 263 } 264 write(fd, result.string(), result.size()); 265 return NO_ERROR; 266} 267 268 269status_t AudioFlinger::dumpInternals(int fd, const Vector<String16>& args) 270{ 271 const size_t SIZE = 256; 272 char buffer[SIZE]; 273 String8 result; 274 int hardwareStatus = mHardwareStatus; 275 276 snprintf(buffer, SIZE, "Hardware status: %d\n", hardwareStatus); 277 result.append(buffer); 278 write(fd, result.string(), result.size()); 279 return NO_ERROR; 280} 281 282status_t AudioFlinger::dumpPermissionDenial(int fd, const Vector<String16>& args) 283{ 284 const size_t SIZE = 256; 285 char buffer[SIZE]; 286 String8 result; 287 snprintf(buffer, SIZE, "Permission Denial: " 288 "can't dump AudioFlinger from pid=%d, uid=%d\n", 289 IPCThreadState::self()->getCallingPid(), 290 IPCThreadState::self()->getCallingUid()); 291 result.append(buffer); 292 write(fd, result.string(), result.size()); 293 return NO_ERROR; 294} 295 296static bool tryLock(Mutex& mutex) 297{ 298 bool locked = false; 299 for (int i = 0; i < kDumpLockRetries; ++i) { 300 if (mutex.tryLock() == NO_ERROR) { 301 locked = true; 302 break; 303 } 304 usleep(kDumpLockSleep); 305 } 306 return locked; 307} 308 309status_t AudioFlinger::dump(int fd, const Vector<String16>& args) 310{ 311 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 312 dumpPermissionDenial(fd, args); 313 } else { 314 // get state of hardware lock 315 bool hardwareLocked = tryLock(mHardwareLock); 316 if (!hardwareLocked) { 317 String8 result(kHardwareLockedString); 318 write(fd, result.string(), result.size()); 319 } else { 320 mHardwareLock.unlock(); 321 } 322 323 bool locked = tryLock(mLock); 324 325 // failed to lock - AudioFlinger is probably deadlocked 326 if (!locked) { 327 String8 result(kDeadlockedString); 328 write(fd, result.string(), result.size()); 329 } 330 331 dumpClients(fd, args); 332 dumpInternals(fd, args); 333 334 // dump playback threads 335 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 336 mPlaybackThreads.valueAt(i)->dump(fd, args); 337 } 338 339 // dump record threads 340 for (size_t i = 0; i < mRecordThreads.size(); i++) { 341 mRecordThreads.valueAt(i)->dump(fd, args); 342 } 343 344 // dump all hardware devs 345 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 346 audio_hw_device_t *dev = mAudioHwDevs[i]; 347 dev->dump(dev, fd); 348 } 349 if (locked) mLock.unlock(); 350 } 351 return NO_ERROR; 352} 353 354 355// IAudioFlinger interface 356 357 358sp<IAudioTrack> AudioFlinger::createTrack( 359 pid_t pid, 360 int streamType, 361 uint32_t sampleRate, 362 uint32_t format, 363 uint32_t channelMask, 364 int frameCount, 365 uint32_t flags, 366 const sp<IMemory>& sharedBuffer, 367 int output, 368 int *sessionId, 369 status_t *status) 370{ 371 sp<PlaybackThread::Track> track; 372 sp<TrackHandle> trackHandle; 373 sp<Client> client; 374 wp<Client> wclient; 375 status_t lStatus; 376 int lSessionId; 377 378 if (streamType >= AUDIO_STREAM_CNT) { 379 LOGE("invalid stream type"); 380 lStatus = BAD_VALUE; 381 goto Exit; 382 } 383 384 { 385 Mutex::Autolock _l(mLock); 386 PlaybackThread *thread = checkPlaybackThread_l(output); 387 PlaybackThread *effectThread = NULL; 388 if (thread == NULL) { 389 LOGE("unknown output thread"); 390 lStatus = BAD_VALUE; 391 goto Exit; 392 } 393 394 wclient = mClients.valueFor(pid); 395 396 if (wclient != NULL) { 397 client = wclient.promote(); 398 } else { 399 client = new Client(this, pid); 400 mClients.add(pid, client); 401 } 402 403 LOGV("createTrack() sessionId: %d", (sessionId == NULL) ? -2 : *sessionId); 404 if (sessionId != NULL && *sessionId != AUDIO_SESSION_OUTPUT_MIX) { 405 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 406 sp<PlaybackThread> t = mPlaybackThreads.valueAt(i); 407 if (mPlaybackThreads.keyAt(i) != output) { 408 // prevent same audio session on different output threads 409 uint32_t sessions = t->hasAudioSession(*sessionId); 410 if (sessions & PlaybackThread::TRACK_SESSION) { 411 lStatus = BAD_VALUE; 412 goto Exit; 413 } 414 // check if an effect with same session ID is waiting for a track to be created 415 if (sessions & PlaybackThread::EFFECT_SESSION) { 416 effectThread = t.get(); 417 } 418 } 419 } 420 lSessionId = *sessionId; 421 } else { 422 // if no audio session id is provided, create one here 423 lSessionId = nextUniqueId(); 424 if (sessionId != NULL) { 425 *sessionId = lSessionId; 426 } 427 } 428 LOGV("createTrack() lSessionId: %d", lSessionId); 429 430 track = thread->createTrack_l(client, streamType, sampleRate, format, 431 channelMask, frameCount, sharedBuffer, lSessionId, &lStatus); 432 433 // move effect chain to this output thread if an effect on same session was waiting 434 // for a track to be created 435 if (lStatus == NO_ERROR && effectThread != NULL) { 436 Mutex::Autolock _dl(thread->mLock); 437 Mutex::Autolock _sl(effectThread->mLock); 438 moveEffectChain_l(lSessionId, effectThread, thread, true); 439 } 440 } 441 if (lStatus == NO_ERROR) { 442 trackHandle = new TrackHandle(track); 443 } else { 444 // remove local strong reference to Client before deleting the Track so that the Client 445 // destructor is called by the TrackBase destructor with mLock held 446 client.clear(); 447 track.clear(); 448 } 449 450Exit: 451 if(status) { 452 *status = lStatus; 453 } 454 return trackHandle; 455} 456 457uint32_t AudioFlinger::sampleRate(int output) const 458{ 459 Mutex::Autolock _l(mLock); 460 PlaybackThread *thread = checkPlaybackThread_l(output); 461 if (thread == NULL) { 462 LOGW("sampleRate() unknown thread %d", output); 463 return 0; 464 } 465 return thread->sampleRate(); 466} 467 468int AudioFlinger::channelCount(int output) const 469{ 470 Mutex::Autolock _l(mLock); 471 PlaybackThread *thread = checkPlaybackThread_l(output); 472 if (thread == NULL) { 473 LOGW("channelCount() unknown thread %d", output); 474 return 0; 475 } 476 return thread->channelCount(); 477} 478 479uint32_t AudioFlinger::format(int output) const 480{ 481 Mutex::Autolock _l(mLock); 482 PlaybackThread *thread = checkPlaybackThread_l(output); 483 if (thread == NULL) { 484 LOGW("format() unknown thread %d", output); 485 return 0; 486 } 487 return thread->format(); 488} 489 490size_t AudioFlinger::frameCount(int output) const 491{ 492 Mutex::Autolock _l(mLock); 493 PlaybackThread *thread = checkPlaybackThread_l(output); 494 if (thread == NULL) { 495 LOGW("frameCount() unknown thread %d", output); 496 return 0; 497 } 498 return thread->frameCount(); 499} 500 501uint32_t AudioFlinger::latency(int output) const 502{ 503 Mutex::Autolock _l(mLock); 504 PlaybackThread *thread = checkPlaybackThread_l(output); 505 if (thread == NULL) { 506 LOGW("latency() unknown thread %d", output); 507 return 0; 508 } 509 return thread->latency(); 510} 511 512status_t AudioFlinger::setMasterVolume(float value) 513{ 514 // check calling permissions 515 if (!settingsAllowed()) { 516 return PERMISSION_DENIED; 517 } 518 519 // when hw supports master volume, don't scale in sw mixer 520 { // scope for the lock 521 AutoMutex lock(mHardwareLock); 522 mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME; 523 if (mPrimaryHardwareDev->set_master_volume(mPrimaryHardwareDev, value) == NO_ERROR) { 524 value = 1.0f; 525 } 526 mHardwareStatus = AUDIO_HW_IDLE; 527 } 528 529 Mutex::Autolock _l(mLock); 530 mMasterVolume = value; 531 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 532 mPlaybackThreads.valueAt(i)->setMasterVolume(value); 533 534 return NO_ERROR; 535} 536 537status_t AudioFlinger::setMode(int mode) 538{ 539 status_t ret; 540 541 // check calling permissions 542 if (!settingsAllowed()) { 543 return PERMISSION_DENIED; 544 } 545 if ((mode < 0) || (mode >= AUDIO_MODE_CNT)) { 546 LOGW("Illegal value: setMode(%d)", mode); 547 return BAD_VALUE; 548 } 549 550 { // scope for the lock 551 AutoMutex lock(mHardwareLock); 552 mHardwareStatus = AUDIO_HW_SET_MODE; 553 ret = mPrimaryHardwareDev->set_mode(mPrimaryHardwareDev, mode); 554 mHardwareStatus = AUDIO_HW_IDLE; 555 } 556 557 if (NO_ERROR == ret) { 558 Mutex::Autolock _l(mLock); 559 mMode = mode; 560 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 561 mPlaybackThreads.valueAt(i)->setMode(mode); 562 } 563 564 return ret; 565} 566 567status_t AudioFlinger::setMicMute(bool state) 568{ 569 // check calling permissions 570 if (!settingsAllowed()) { 571 return PERMISSION_DENIED; 572 } 573 574 AutoMutex lock(mHardwareLock); 575 mHardwareStatus = AUDIO_HW_SET_MIC_MUTE; 576 status_t ret = mPrimaryHardwareDev->set_mic_mute(mPrimaryHardwareDev, state); 577 mHardwareStatus = AUDIO_HW_IDLE; 578 return ret; 579} 580 581bool AudioFlinger::getMicMute() const 582{ 583 bool state = AUDIO_MODE_INVALID; 584 mHardwareStatus = AUDIO_HW_GET_MIC_MUTE; 585 mPrimaryHardwareDev->get_mic_mute(mPrimaryHardwareDev, &state); 586 mHardwareStatus = AUDIO_HW_IDLE; 587 return state; 588} 589 590status_t AudioFlinger::setMasterMute(bool muted) 591{ 592 // check calling permissions 593 if (!settingsAllowed()) { 594 return PERMISSION_DENIED; 595 } 596 597 Mutex::Autolock _l(mLock); 598 mMasterMute = muted; 599 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 600 mPlaybackThreads.valueAt(i)->setMasterMute(muted); 601 602 return NO_ERROR; 603} 604 605float AudioFlinger::masterVolume() const 606{ 607 return mMasterVolume; 608} 609 610bool AudioFlinger::masterMute() const 611{ 612 return mMasterMute; 613} 614 615status_t AudioFlinger::setStreamVolume(int stream, float value, int output) 616{ 617 // check calling permissions 618 if (!settingsAllowed()) { 619 return PERMISSION_DENIED; 620 } 621 622 if (stream < 0 || uint32_t(stream) >= AUDIO_STREAM_CNT) { 623 return BAD_VALUE; 624 } 625 626 AutoMutex lock(mLock); 627 PlaybackThread *thread = NULL; 628 if (output) { 629 thread = checkPlaybackThread_l(output); 630 if (thread == NULL) { 631 return BAD_VALUE; 632 } 633 } 634 635 mStreamTypes[stream].volume = value; 636 637 if (thread == NULL) { 638 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) { 639 mPlaybackThreads.valueAt(i)->setStreamVolume(stream, value); 640 } 641 } else { 642 thread->setStreamVolume(stream, value); 643 } 644 645 return NO_ERROR; 646} 647 648status_t AudioFlinger::setStreamMute(int stream, bool muted) 649{ 650 // check calling permissions 651 if (!settingsAllowed()) { 652 return PERMISSION_DENIED; 653 } 654 655 if (stream < 0 || uint32_t(stream) >= AUDIO_STREAM_CNT || 656 uint32_t(stream) == AUDIO_STREAM_ENFORCED_AUDIBLE) { 657 return BAD_VALUE; 658 } 659 660 AutoMutex lock(mLock); 661 mStreamTypes[stream].mute = muted; 662 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 663 mPlaybackThreads.valueAt(i)->setStreamMute(stream, muted); 664 665 return NO_ERROR; 666} 667 668float AudioFlinger::streamVolume(int stream, int output) const 669{ 670 if (stream < 0 || uint32_t(stream) >= AUDIO_STREAM_CNT) { 671 return 0.0f; 672 } 673 674 AutoMutex lock(mLock); 675 float volume; 676 if (output) { 677 PlaybackThread *thread = checkPlaybackThread_l(output); 678 if (thread == NULL) { 679 return 0.0f; 680 } 681 volume = thread->streamVolume(stream); 682 } else { 683 volume = mStreamTypes[stream].volume; 684 } 685 686 return volume; 687} 688 689bool AudioFlinger::streamMute(int stream) const 690{ 691 if (stream < 0 || stream >= (int)AUDIO_STREAM_CNT) { 692 return true; 693 } 694 695 return mStreamTypes[stream].mute; 696} 697 698status_t AudioFlinger::setParameters(int ioHandle, const String8& keyValuePairs) 699{ 700 status_t result; 701 702 LOGV("setParameters(): io %d, keyvalue %s, tid %d, calling tid %d", 703 ioHandle, keyValuePairs.string(), gettid(), IPCThreadState::self()->getCallingPid()); 704 // check calling permissions 705 if (!settingsAllowed()) { 706 return PERMISSION_DENIED; 707 } 708 709 // ioHandle == 0 means the parameters are global to the audio hardware interface 710 if (ioHandle == 0) { 711 AutoMutex lock(mHardwareLock); 712 mHardwareStatus = AUDIO_SET_PARAMETER; 713 status_t final_result = NO_ERROR; 714 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 715 audio_hw_device_t *dev = mAudioHwDevs[i]; 716 result = dev->set_parameters(dev, keyValuePairs.string()); 717 final_result = result ?: final_result; 718 } 719 mHardwareStatus = AUDIO_HW_IDLE; 720 return final_result; 721 } 722 723 // hold a strong ref on thread in case closeOutput() or closeInput() is called 724 // and the thread is exited once the lock is released 725 sp<ThreadBase> thread; 726 { 727 Mutex::Autolock _l(mLock); 728 thread = checkPlaybackThread_l(ioHandle); 729 if (thread == NULL) { 730 thread = checkRecordThread_l(ioHandle); 731 } else if (thread.get() == primaryPlaybackThread_l()) { 732 // indicate output device change to all input threads for pre processing 733 AudioParameter param = AudioParameter(keyValuePairs); 734 int value; 735 if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) { 736 for (size_t i = 0; i < mRecordThreads.size(); i++) { 737 mRecordThreads.valueAt(i)->setParameters(keyValuePairs); 738 } 739 } 740 } 741 } 742 if (thread != NULL) { 743 result = thread->setParameters(keyValuePairs); 744 return result; 745 } 746 return BAD_VALUE; 747} 748 749String8 AudioFlinger::getParameters(int ioHandle, const String8& keys) 750{ 751// LOGV("getParameters() io %d, keys %s, tid %d, calling tid %d", 752// ioHandle, keys.string(), gettid(), IPCThreadState::self()->getCallingPid()); 753 754 if (ioHandle == 0) { 755 String8 out_s8; 756 757 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 758 audio_hw_device_t *dev = mAudioHwDevs[i]; 759 char *s = dev->get_parameters(dev, keys.string()); 760 out_s8 += String8(s); 761 free(s); 762 } 763 return out_s8; 764 } 765 766 Mutex::Autolock _l(mLock); 767 768 PlaybackThread *playbackThread = checkPlaybackThread_l(ioHandle); 769 if (playbackThread != NULL) { 770 return playbackThread->getParameters(keys); 771 } 772 RecordThread *recordThread = checkRecordThread_l(ioHandle); 773 if (recordThread != NULL) { 774 return recordThread->getParameters(keys); 775 } 776 return String8(""); 777} 778 779size_t AudioFlinger::getInputBufferSize(uint32_t sampleRate, int format, int channelCount) 780{ 781 return mPrimaryHardwareDev->get_input_buffer_size(mPrimaryHardwareDev, sampleRate, format, channelCount); 782} 783 784unsigned int AudioFlinger::getInputFramesLost(int ioHandle) 785{ 786 if (ioHandle == 0) { 787 return 0; 788 } 789 790 Mutex::Autolock _l(mLock); 791 792 RecordThread *recordThread = checkRecordThread_l(ioHandle); 793 if (recordThread != NULL) { 794 return recordThread->getInputFramesLost(); 795 } 796 return 0; 797} 798 799status_t AudioFlinger::setVoiceVolume(float value) 800{ 801 // check calling permissions 802 if (!settingsAllowed()) { 803 return PERMISSION_DENIED; 804 } 805 806 AutoMutex lock(mHardwareLock); 807 mHardwareStatus = AUDIO_SET_VOICE_VOLUME; 808 status_t ret = mPrimaryHardwareDev->set_voice_volume(mPrimaryHardwareDev, value); 809 mHardwareStatus = AUDIO_HW_IDLE; 810 811 return ret; 812} 813 814status_t AudioFlinger::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output) 815{ 816 status_t status; 817 818 Mutex::Autolock _l(mLock); 819 820 PlaybackThread *playbackThread = checkPlaybackThread_l(output); 821 if (playbackThread != NULL) { 822 return playbackThread->getRenderPosition(halFrames, dspFrames); 823 } 824 825 return BAD_VALUE; 826} 827 828void AudioFlinger::registerClient(const sp<IAudioFlingerClient>& client) 829{ 830 831 Mutex::Autolock _l(mLock); 832 833 int pid = IPCThreadState::self()->getCallingPid(); 834 if (mNotificationClients.indexOfKey(pid) < 0) { 835 sp<NotificationClient> notificationClient = new NotificationClient(this, 836 client, 837 pid); 838 LOGV("registerClient() client %p, pid %d", notificationClient.get(), pid); 839 840 mNotificationClients.add(pid, notificationClient); 841 842 sp<IBinder> binder = client->asBinder(); 843 binder->linkToDeath(notificationClient); 844 845 // the config change is always sent from playback or record threads to avoid deadlock 846 // with AudioSystem::gLock 847 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 848 mPlaybackThreads.valueAt(i)->sendConfigEvent(AudioSystem::OUTPUT_OPENED); 849 } 850 851 for (size_t i = 0; i < mRecordThreads.size(); i++) { 852 mRecordThreads.valueAt(i)->sendConfigEvent(AudioSystem::INPUT_OPENED); 853 } 854 } 855} 856 857void AudioFlinger::removeNotificationClient(pid_t pid) 858{ 859 Mutex::Autolock _l(mLock); 860 861 int index = mNotificationClients.indexOfKey(pid); 862 if (index >= 0) { 863 sp <NotificationClient> client = mNotificationClients.valueFor(pid); 864 LOGV("removeNotificationClient() %p, pid %d", client.get(), pid); 865 mNotificationClients.removeItem(pid); 866 } 867} 868 869// audioConfigChanged_l() must be called with AudioFlinger::mLock held 870void AudioFlinger::audioConfigChanged_l(int event, int ioHandle, void *param2) 871{ 872 size_t size = mNotificationClients.size(); 873 for (size_t i = 0; i < size; i++) { 874 mNotificationClients.valueAt(i)->client()->ioConfigChanged(event, ioHandle, param2); 875 } 876} 877 878// removeClient_l() must be called with AudioFlinger::mLock held 879void AudioFlinger::removeClient_l(pid_t pid) 880{ 881 LOGV("removeClient_l() pid %d, tid %d, calling tid %d", pid, gettid(), IPCThreadState::self()->getCallingPid()); 882 mClients.removeItem(pid); 883} 884 885 886// ---------------------------------------------------------------------------- 887 888AudioFlinger::ThreadBase::ThreadBase(const sp<AudioFlinger>& audioFlinger, int id, uint32_t device) 889 : Thread(false), 890 mAudioFlinger(audioFlinger), mSampleRate(0), mFrameCount(0), mChannelCount(0), 891 mFrameSize(1), mFormat(0), mStandby(false), mId(id), mExiting(false), 892 mDevice(device) 893{ 894 mDeathRecipient = new PMDeathRecipient(this); 895} 896 897AudioFlinger::ThreadBase::~ThreadBase() 898{ 899 mParamCond.broadcast(); 900 mNewParameters.clear(); 901 // do not lock the mutex in destructor 902 releaseWakeLock_l(); 903} 904 905void AudioFlinger::ThreadBase::exit() 906{ 907 // keep a strong ref on ourself so that we wont get 908 // destroyed in the middle of requestExitAndWait() 909 sp <ThreadBase> strongMe = this; 910 911 LOGV("ThreadBase::exit"); 912 { 913 AutoMutex lock(&mLock); 914 mExiting = true; 915 requestExit(); 916 mWaitWorkCV.signal(); 917 } 918 requestExitAndWait(); 919} 920 921uint32_t AudioFlinger::ThreadBase::sampleRate() const 922{ 923 return mSampleRate; 924} 925 926int AudioFlinger::ThreadBase::channelCount() const 927{ 928 return (int)mChannelCount; 929} 930 931uint32_t AudioFlinger::ThreadBase::format() const 932{ 933 return mFormat; 934} 935 936size_t AudioFlinger::ThreadBase::frameCount() const 937{ 938 return mFrameCount; 939} 940 941status_t AudioFlinger::ThreadBase::setParameters(const String8& keyValuePairs) 942{ 943 status_t status; 944 945 LOGV("ThreadBase::setParameters() %s", keyValuePairs.string()); 946 Mutex::Autolock _l(mLock); 947 948 mNewParameters.add(keyValuePairs); 949 mWaitWorkCV.signal(); 950 // wait condition with timeout in case the thread loop has exited 951 // before the request could be processed 952 if (mParamCond.waitRelative(mLock, seconds(2)) == NO_ERROR) { 953 status = mParamStatus; 954 mWaitWorkCV.signal(); 955 } else { 956 status = TIMED_OUT; 957 } 958 return status; 959} 960 961void AudioFlinger::ThreadBase::sendConfigEvent(int event, int param) 962{ 963 Mutex::Autolock _l(mLock); 964 sendConfigEvent_l(event, param); 965} 966 967// sendConfigEvent_l() must be called with ThreadBase::mLock held 968void AudioFlinger::ThreadBase::sendConfigEvent_l(int event, int param) 969{ 970 ConfigEvent *configEvent = new ConfigEvent(); 971 configEvent->mEvent = event; 972 configEvent->mParam = param; 973 mConfigEvents.add(configEvent); 974 LOGV("sendConfigEvent() num events %d event %d, param %d", mConfigEvents.size(), event, param); 975 mWaitWorkCV.signal(); 976} 977 978void AudioFlinger::ThreadBase::processConfigEvents() 979{ 980 mLock.lock(); 981 while(!mConfigEvents.isEmpty()) { 982 LOGV("processConfigEvents() remaining events %d", mConfigEvents.size()); 983 ConfigEvent *configEvent = mConfigEvents[0]; 984 mConfigEvents.removeAt(0); 985 // release mLock before locking AudioFlinger mLock: lock order is always 986 // AudioFlinger then ThreadBase to avoid cross deadlock 987 mLock.unlock(); 988 mAudioFlinger->mLock.lock(); 989 audioConfigChanged_l(configEvent->mEvent, configEvent->mParam); 990 mAudioFlinger->mLock.unlock(); 991 delete configEvent; 992 mLock.lock(); 993 } 994 mLock.unlock(); 995} 996 997status_t AudioFlinger::ThreadBase::dumpBase(int fd, const Vector<String16>& args) 998{ 999 const size_t SIZE = 256; 1000 char buffer[SIZE]; 1001 String8 result; 1002 1003 bool locked = tryLock(mLock); 1004 if (!locked) { 1005 snprintf(buffer, SIZE, "thread %p maybe dead locked\n", this); 1006 write(fd, buffer, strlen(buffer)); 1007 } 1008 1009 snprintf(buffer, SIZE, "standby: %d\n", mStandby); 1010 result.append(buffer); 1011 snprintf(buffer, SIZE, "Sample rate: %d\n", mSampleRate); 1012 result.append(buffer); 1013 snprintf(buffer, SIZE, "Frame count: %d\n", mFrameCount); 1014 result.append(buffer); 1015 snprintf(buffer, SIZE, "Channel Count: %d\n", mChannelCount); 1016 result.append(buffer); 1017 snprintf(buffer, SIZE, "Channel Mask: 0x%08x\n", mChannelMask); 1018 result.append(buffer); 1019 snprintf(buffer, SIZE, "Format: %d\n", mFormat); 1020 result.append(buffer); 1021 snprintf(buffer, SIZE, "Frame size: %d\n", mFrameSize); 1022 result.append(buffer); 1023 1024 snprintf(buffer, SIZE, "\nPending setParameters commands: \n"); 1025 result.append(buffer); 1026 result.append(" Index Command"); 1027 for (size_t i = 0; i < mNewParameters.size(); ++i) { 1028 snprintf(buffer, SIZE, "\n %02d ", i); 1029 result.append(buffer); 1030 result.append(mNewParameters[i]); 1031 } 1032 1033 snprintf(buffer, SIZE, "\n\nPending config events: \n"); 1034 result.append(buffer); 1035 snprintf(buffer, SIZE, " Index event param\n"); 1036 result.append(buffer); 1037 for (size_t i = 0; i < mConfigEvents.size(); i++) { 1038 snprintf(buffer, SIZE, " %02d %02d %d\n", i, mConfigEvents[i]->mEvent, mConfigEvents[i]->mParam); 1039 result.append(buffer); 1040 } 1041 result.append("\n"); 1042 1043 write(fd, result.string(), result.size()); 1044 1045 if (locked) { 1046 mLock.unlock(); 1047 } 1048 return NO_ERROR; 1049} 1050 1051status_t AudioFlinger::ThreadBase::dumpEffectChains(int fd, const Vector<String16>& args) 1052{ 1053 const size_t SIZE = 256; 1054 char buffer[SIZE]; 1055 String8 result; 1056 1057 snprintf(buffer, SIZE, "\n- %d Effect Chains:\n", mEffectChains.size()); 1058 write(fd, buffer, strlen(buffer)); 1059 1060 for (size_t i = 0; i < mEffectChains.size(); ++i) { 1061 sp<EffectChain> chain = mEffectChains[i]; 1062 if (chain != 0) { 1063 chain->dump(fd, args); 1064 } 1065 } 1066 return NO_ERROR; 1067} 1068 1069void AudioFlinger::ThreadBase::acquireWakeLock() 1070{ 1071 Mutex::Autolock _l(mLock); 1072 acquireWakeLock_l(); 1073} 1074 1075void AudioFlinger::ThreadBase::acquireWakeLock_l() 1076{ 1077 if (mPowerManager == 0) { 1078 // use checkService() to avoid blocking if power service is not up yet 1079 sp<IBinder> binder = 1080 defaultServiceManager()->checkService(String16("power")); 1081 if (binder == 0) { 1082 LOGW("Thread %s cannot connect to the power manager service", mName); 1083 } else { 1084 mPowerManager = interface_cast<IPowerManager>(binder); 1085 binder->linkToDeath(mDeathRecipient); 1086 } 1087 } 1088 if (mPowerManager != 0) { 1089 sp<IBinder> binder = new BBinder(); 1090 status_t status = mPowerManager->acquireWakeLock(POWERMANAGER_PARTIAL_WAKE_LOCK, 1091 binder, 1092 String16(mName)); 1093 if (status == NO_ERROR) { 1094 mWakeLockToken = binder; 1095 } 1096 LOGV("acquireWakeLock_l() %s status %d", mName, status); 1097 } 1098} 1099 1100void AudioFlinger::ThreadBase::releaseWakeLock() 1101{ 1102 Mutex::Autolock _l(mLock); 1103 releaseWakeLock_l(); 1104} 1105 1106void AudioFlinger::ThreadBase::releaseWakeLock_l() 1107{ 1108 if (mWakeLockToken != 0) { 1109 LOGV("releaseWakeLock_l() %s", mName); 1110 if (mPowerManager != 0) { 1111 mPowerManager->releaseWakeLock(mWakeLockToken, 0); 1112 } 1113 mWakeLockToken.clear(); 1114 } 1115} 1116 1117void AudioFlinger::ThreadBase::clearPowerManager() 1118{ 1119 Mutex::Autolock _l(mLock); 1120 releaseWakeLock_l(); 1121 mPowerManager.clear(); 1122} 1123 1124void AudioFlinger::ThreadBase::PMDeathRecipient::binderDied(const wp<IBinder>& who) 1125{ 1126 sp<ThreadBase> thread = mThread.promote(); 1127 if (thread != 0) { 1128 thread->clearPowerManager(); 1129 } 1130 LOGW("power manager service died !!!"); 1131} 1132 1133void AudioFlinger::ThreadBase::setEffectSuspended( 1134 const effect_uuid_t *type, bool suspend, int sessionId) 1135{ 1136 Mutex::Autolock _l(mLock); 1137 setEffectSuspended_l(type, suspend, sessionId); 1138} 1139 1140void AudioFlinger::ThreadBase::setEffectSuspended_l( 1141 const effect_uuid_t *type, bool suspend, int sessionId) 1142{ 1143 sp<EffectChain> chain; 1144 chain = getEffectChain_l(sessionId); 1145 if (chain != 0) { 1146 if (type != NULL) { 1147 chain->setEffectSuspended_l(type, suspend); 1148 } else { 1149 chain->setEffectSuspendedAll_l(suspend); 1150 } 1151 } 1152 1153 updateSuspendedSessions_l(type, suspend, sessionId); 1154} 1155 1156void AudioFlinger::ThreadBase::checkSuspendOnAddEffectChain_l(const sp<EffectChain>& chain) 1157{ 1158 int index = mSuspendedSessions.indexOfKey(chain->sessionId()); 1159 if (index < 0) { 1160 return; 1161 } 1162 1163 KeyedVector <int, sp<SuspendedSessionDesc> > sessionEffects = 1164 mSuspendedSessions.editValueAt(index); 1165 1166 for (size_t i = 0; i < sessionEffects.size(); i++) { 1167 sp <SuspendedSessionDesc> desc = sessionEffects.valueAt(i); 1168 for (int j = 0; j < desc->mRefCount; j++) { 1169 if (sessionEffects.keyAt(i) == EffectChain::kKeyForSuspendAll) { 1170 chain->setEffectSuspendedAll_l(true); 1171 } else { 1172 LOGV("checkSuspendOnAddEffectChain_l() suspending effects %08x", 1173 desc->mType.timeLow); 1174 chain->setEffectSuspended_l(&desc->mType, true); 1175 } 1176 } 1177 } 1178} 1179 1180void AudioFlinger::ThreadBase::updateSuspendedSessionsOnRemoveEffectChain_l( 1181 const sp<EffectChain>& chain) 1182{ 1183 int index = mSuspendedSessions.indexOfKey(chain->sessionId()); 1184 if (index < 0) { 1185 return; 1186 } 1187 LOGV("updateSuspendedSessionsOnRemoveEffectChain_l() removed suspended session %d", 1188 chain->sessionId()); 1189 mSuspendedSessions.removeItemsAt(index); 1190} 1191 1192void AudioFlinger::ThreadBase::updateSuspendedSessions_l(const effect_uuid_t *type, 1193 bool suspend, 1194 int sessionId) 1195{ 1196 int index = mSuspendedSessions.indexOfKey(sessionId); 1197 1198 KeyedVector <int, sp<SuspendedSessionDesc> > sessionEffects; 1199 1200 if (suspend) { 1201 if (index >= 0) { 1202 sessionEffects = mSuspendedSessions.editValueAt(index); 1203 } else { 1204 mSuspendedSessions.add(sessionId, sessionEffects); 1205 } 1206 } else { 1207 if (index < 0) { 1208 return; 1209 } 1210 sessionEffects = mSuspendedSessions.editValueAt(index); 1211 } 1212 1213 1214 int key = EffectChain::kKeyForSuspendAll; 1215 if (type != NULL) { 1216 key = type->timeLow; 1217 } 1218 index = sessionEffects.indexOfKey(key); 1219 1220 sp <SuspendedSessionDesc> desc; 1221 if (suspend) { 1222 if (index >= 0) { 1223 desc = sessionEffects.valueAt(index); 1224 } else { 1225 desc = new SuspendedSessionDesc(); 1226 if (type != NULL) { 1227 memcpy(&desc->mType, type, sizeof(effect_uuid_t)); 1228 } 1229 sessionEffects.add(key, desc); 1230 LOGV("updateSuspendedSessions_l() suspend adding effect %08x", key); 1231 } 1232 desc->mRefCount++; 1233 } else { 1234 if (index < 0) { 1235 return; 1236 } 1237 desc = sessionEffects.valueAt(index); 1238 if (--desc->mRefCount == 0) { 1239 LOGV("updateSuspendedSessions_l() restore removing effect %08x", key); 1240 sessionEffects.removeItemsAt(index); 1241 if (sessionEffects.isEmpty()) { 1242 LOGV("updateSuspendedSessions_l() restore removing session %d", 1243 sessionId); 1244 mSuspendedSessions.removeItem(sessionId); 1245 } 1246 } 1247 } 1248 if (!sessionEffects.isEmpty()) { 1249 mSuspendedSessions.replaceValueFor(sessionId, sessionEffects); 1250 } 1251} 1252 1253void AudioFlinger::ThreadBase::checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, 1254 bool enabled, 1255 int sessionId) 1256{ 1257 Mutex::Autolock _l(mLock); 1258 1259 // TODO: implement PlaybackThread or RecordThread specific behavior here 1260 1261 sp<EffectChain> chain = getEffectChain_l(sessionId); 1262 if (chain != 0) { 1263 chain->checkSuspendOnEffectEnabled(effect, enabled); 1264 } 1265} 1266 1267// ---------------------------------------------------------------------------- 1268 1269AudioFlinger::PlaybackThread::PlaybackThread(const sp<AudioFlinger>& audioFlinger, 1270 AudioStreamOut* output, 1271 int id, 1272 uint32_t device) 1273 : ThreadBase(audioFlinger, id, device), 1274 mMixBuffer(0), mSuspended(0), mBytesWritten(0), mOutput(output), 1275 mLastWriteTime(0), mNumWrites(0), mNumDelayedWrites(0), mInWrite(false) 1276{ 1277 snprintf(mName, kNameLength, "AudioOut_%d", id); 1278 1279 readOutputParameters(); 1280 1281 mMasterVolume = mAudioFlinger->masterVolume(); 1282 mMasterMute = mAudioFlinger->masterMute(); 1283 1284 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 1285 mStreamTypes[stream].volume = mAudioFlinger->streamVolumeInternal(stream); 1286 mStreamTypes[stream].mute = mAudioFlinger->streamMute(stream); 1287 } 1288} 1289 1290AudioFlinger::PlaybackThread::~PlaybackThread() 1291{ 1292 delete [] mMixBuffer; 1293} 1294 1295status_t AudioFlinger::PlaybackThread::dump(int fd, const Vector<String16>& args) 1296{ 1297 dumpInternals(fd, args); 1298 dumpTracks(fd, args); 1299 dumpEffectChains(fd, args); 1300 return NO_ERROR; 1301} 1302 1303status_t AudioFlinger::PlaybackThread::dumpTracks(int fd, const Vector<String16>& args) 1304{ 1305 const size_t SIZE = 256; 1306 char buffer[SIZE]; 1307 String8 result; 1308 1309 snprintf(buffer, SIZE, "Output thread %p tracks\n", this); 1310 result.append(buffer); 1311 result.append(" Name Clien Typ Fmt Chn mask Session Buf S M F SRate LeftV RighV Serv User Main buf Aux Buf\n"); 1312 for (size_t i = 0; i < mTracks.size(); ++i) { 1313 sp<Track> track = mTracks[i]; 1314 if (track != 0) { 1315 track->dump(buffer, SIZE); 1316 result.append(buffer); 1317 } 1318 } 1319 1320 snprintf(buffer, SIZE, "Output thread %p active tracks\n", this); 1321 result.append(buffer); 1322 result.append(" Name Clien Typ Fmt Chn mask Session Buf S M F SRate LeftV RighV Serv User Main buf Aux Buf\n"); 1323 for (size_t i = 0; i < mActiveTracks.size(); ++i) { 1324 wp<Track> wTrack = mActiveTracks[i]; 1325 if (wTrack != 0) { 1326 sp<Track> track = wTrack.promote(); 1327 if (track != 0) { 1328 track->dump(buffer, SIZE); 1329 result.append(buffer); 1330 } 1331 } 1332 } 1333 write(fd, result.string(), result.size()); 1334 return NO_ERROR; 1335} 1336 1337status_t AudioFlinger::PlaybackThread::dumpInternals(int fd, const Vector<String16>& args) 1338{ 1339 const size_t SIZE = 256; 1340 char buffer[SIZE]; 1341 String8 result; 1342 1343 snprintf(buffer, SIZE, "\nOutput thread %p internals\n", this); 1344 result.append(buffer); 1345 snprintf(buffer, SIZE, "last write occurred (msecs): %llu\n", ns2ms(systemTime() - mLastWriteTime)); 1346 result.append(buffer); 1347 snprintf(buffer, SIZE, "total writes: %d\n", mNumWrites); 1348 result.append(buffer); 1349 snprintf(buffer, SIZE, "delayed writes: %d\n", mNumDelayedWrites); 1350 result.append(buffer); 1351 snprintf(buffer, SIZE, "blocked in write: %d\n", mInWrite); 1352 result.append(buffer); 1353 snprintf(buffer, SIZE, "suspend count: %d\n", mSuspended); 1354 result.append(buffer); 1355 snprintf(buffer, SIZE, "mix buffer : %p\n", mMixBuffer); 1356 result.append(buffer); 1357 write(fd, result.string(), result.size()); 1358 1359 dumpBase(fd, args); 1360 1361 return NO_ERROR; 1362} 1363 1364// Thread virtuals 1365status_t AudioFlinger::PlaybackThread::readyToRun() 1366{ 1367 if (mSampleRate == 0) { 1368 LOGE("No working audio driver found."); 1369 return NO_INIT; 1370 } 1371 LOGI("AudioFlinger's thread %p ready to run", this); 1372 return NO_ERROR; 1373} 1374 1375void AudioFlinger::PlaybackThread::onFirstRef() 1376{ 1377 run(mName, ANDROID_PRIORITY_URGENT_AUDIO); 1378} 1379 1380// PlaybackThread::createTrack_l() must be called with AudioFlinger::mLock held 1381sp<AudioFlinger::PlaybackThread::Track> AudioFlinger::PlaybackThread::createTrack_l( 1382 const sp<AudioFlinger::Client>& client, 1383 int streamType, 1384 uint32_t sampleRate, 1385 uint32_t format, 1386 uint32_t channelMask, 1387 int frameCount, 1388 const sp<IMemory>& sharedBuffer, 1389 int sessionId, 1390 status_t *status) 1391{ 1392 sp<Track> track; 1393 status_t lStatus; 1394 1395 if (mType == DIRECT) { 1396 if ((format & AUDIO_FORMAT_MAIN_MASK) == AUDIO_FORMAT_PCM) { 1397 if (sampleRate != mSampleRate || format != mFormat || channelMask != mChannelMask) { 1398 LOGE("createTrack_l() Bad parameter: sampleRate %d format %d, channelMask 0x%08x \"" 1399 "for output %p with format %d", 1400 sampleRate, format, channelMask, mOutput, mFormat); 1401 lStatus = BAD_VALUE; 1402 goto Exit; 1403 } 1404 } 1405 } else { 1406 // Resampler implementation limits input sampling rate to 2 x output sampling rate. 1407 if (sampleRate > mSampleRate*2) { 1408 LOGE("Sample rate out of range: %d mSampleRate %d", sampleRate, mSampleRate); 1409 lStatus = BAD_VALUE; 1410 goto Exit; 1411 } 1412 } 1413 1414 lStatus = initCheck(); 1415 if (lStatus != NO_ERROR) { 1416 LOGE("Audio driver not initialized."); 1417 goto Exit; 1418 } 1419 1420 { // scope for mLock 1421 Mutex::Autolock _l(mLock); 1422 1423 // all tracks in same audio session must share the same routing strategy otherwise 1424 // conflicts will happen when tracks are moved from one output to another by audio policy 1425 // manager 1426 uint32_t strategy = 1427 AudioSystem::getStrategyForStream((audio_stream_type_t)streamType); 1428 for (size_t i = 0; i < mTracks.size(); ++i) { 1429 sp<Track> t = mTracks[i]; 1430 if (t != 0) { 1431 if (sessionId == t->sessionId() && 1432 strategy != AudioSystem::getStrategyForStream((audio_stream_type_t)t->type())) { 1433 lStatus = BAD_VALUE; 1434 goto Exit; 1435 } 1436 } 1437 } 1438 1439 track = new Track(this, client, streamType, sampleRate, format, 1440 channelMask, frameCount, sharedBuffer, sessionId); 1441 if (track->getCblk() == NULL || track->name() < 0) { 1442 lStatus = NO_MEMORY; 1443 goto Exit; 1444 } 1445 mTracks.add(track); 1446 1447 sp<EffectChain> chain = getEffectChain_l(sessionId); 1448 if (chain != 0) { 1449 LOGV("createTrack_l() setting main buffer %p", chain->inBuffer()); 1450 track->setMainBuffer(chain->inBuffer()); 1451 chain->setStrategy(AudioSystem::getStrategyForStream((audio_stream_type_t)track->type())); 1452 chain->incTrackCnt(); 1453 } 1454 } 1455 lStatus = NO_ERROR; 1456 1457Exit: 1458 if(status) { 1459 *status = lStatus; 1460 } 1461 return track; 1462} 1463 1464uint32_t AudioFlinger::PlaybackThread::latency() const 1465{ 1466 if (mOutput) { 1467 return mOutput->stream->get_latency(mOutput->stream); 1468 } 1469 else { 1470 return 0; 1471 } 1472} 1473 1474status_t AudioFlinger::PlaybackThread::setMasterVolume(float value) 1475{ 1476 mMasterVolume = value; 1477 return NO_ERROR; 1478} 1479 1480status_t AudioFlinger::PlaybackThread::setMasterMute(bool muted) 1481{ 1482 mMasterMute = muted; 1483 return NO_ERROR; 1484} 1485 1486float AudioFlinger::PlaybackThread::masterVolume() const 1487{ 1488 return mMasterVolume; 1489} 1490 1491bool AudioFlinger::PlaybackThread::masterMute() const 1492{ 1493 return mMasterMute; 1494} 1495 1496status_t AudioFlinger::PlaybackThread::setStreamVolume(int stream, float value) 1497{ 1498 mStreamTypes[stream].volume = value; 1499 return NO_ERROR; 1500} 1501 1502status_t AudioFlinger::PlaybackThread::setStreamMute(int stream, bool muted) 1503{ 1504 mStreamTypes[stream].mute = muted; 1505 return NO_ERROR; 1506} 1507 1508float AudioFlinger::PlaybackThread::streamVolume(int stream) const 1509{ 1510 return mStreamTypes[stream].volume; 1511} 1512 1513bool AudioFlinger::PlaybackThread::streamMute(int stream) const 1514{ 1515 return mStreamTypes[stream].mute; 1516} 1517 1518// addTrack_l() must be called with ThreadBase::mLock held 1519status_t AudioFlinger::PlaybackThread::addTrack_l(const sp<Track>& track) 1520{ 1521 status_t status = ALREADY_EXISTS; 1522 1523 // set retry count for buffer fill 1524 track->mRetryCount = kMaxTrackStartupRetries; 1525 if (mActiveTracks.indexOf(track) < 0) { 1526 // the track is newly added, make sure it fills up all its 1527 // buffers before playing. This is to ensure the client will 1528 // effectively get the latency it requested. 1529 track->mFillingUpStatus = Track::FS_FILLING; 1530 track->mResetDone = false; 1531 mActiveTracks.add(track); 1532 if (track->mainBuffer() != mMixBuffer) { 1533 sp<EffectChain> chain = getEffectChain_l(track->sessionId()); 1534 if (chain != 0) { 1535 LOGV("addTrack_l() starting track on chain %p for session %d", chain.get(), track->sessionId()); 1536 chain->incActiveTrackCnt(); 1537 } 1538 } 1539 1540 status = NO_ERROR; 1541 } 1542 1543 LOGV("mWaitWorkCV.broadcast"); 1544 mWaitWorkCV.broadcast(); 1545 1546 return status; 1547} 1548 1549// destroyTrack_l() must be called with ThreadBase::mLock held 1550void AudioFlinger::PlaybackThread::destroyTrack_l(const sp<Track>& track) 1551{ 1552 track->mState = TrackBase::TERMINATED; 1553 if (mActiveTracks.indexOf(track) < 0) { 1554 removeTrack_l(track); 1555 } 1556} 1557 1558void AudioFlinger::PlaybackThread::removeTrack_l(const sp<Track>& track) 1559{ 1560 mTracks.remove(track); 1561 deleteTrackName_l(track->name()); 1562 sp<EffectChain> chain = getEffectChain_l(track->sessionId()); 1563 if (chain != 0) { 1564 chain->decTrackCnt(); 1565 } 1566} 1567 1568String8 AudioFlinger::PlaybackThread::getParameters(const String8& keys) 1569{ 1570 String8 out_s8; 1571 char *s; 1572 1573 s = mOutput->stream->common.get_parameters(&mOutput->stream->common, keys.string()); 1574 out_s8 = String8(s); 1575 free(s); 1576 return out_s8; 1577} 1578 1579// destroyTrack_l() must be called with AudioFlinger::mLock held 1580void AudioFlinger::PlaybackThread::audioConfigChanged_l(int event, int param) { 1581 AudioSystem::OutputDescriptor desc; 1582 void *param2 = 0; 1583 1584 LOGV("PlaybackThread::audioConfigChanged_l, thread %p, event %d, param %d", this, event, param); 1585 1586 switch (event) { 1587 case AudioSystem::OUTPUT_OPENED: 1588 case AudioSystem::OUTPUT_CONFIG_CHANGED: 1589 desc.channels = mChannelMask; 1590 desc.samplingRate = mSampleRate; 1591 desc.format = mFormat; 1592 desc.frameCount = mFrameCount; 1593 desc.latency = latency(); 1594 param2 = &desc; 1595 break; 1596 1597 case AudioSystem::STREAM_CONFIG_CHANGED: 1598 param2 = ¶m; 1599 case AudioSystem::OUTPUT_CLOSED: 1600 default: 1601 break; 1602 } 1603 mAudioFlinger->audioConfigChanged_l(event, mId, param2); 1604} 1605 1606void AudioFlinger::PlaybackThread::readOutputParameters() 1607{ 1608 mSampleRate = mOutput->stream->common.get_sample_rate(&mOutput->stream->common); 1609 mChannelMask = mOutput->stream->common.get_channels(&mOutput->stream->common); 1610 mChannelCount = (uint16_t)popcount(mChannelMask); 1611 mFormat = mOutput->stream->common.get_format(&mOutput->stream->common); 1612 mFrameSize = (uint16_t)audio_stream_frame_size(&mOutput->stream->common); 1613 mFrameCount = mOutput->stream->common.get_buffer_size(&mOutput->stream->common) / mFrameSize; 1614 1615 // FIXME - Current mixer implementation only supports stereo output: Always 1616 // Allocate a stereo buffer even if HW output is mono. 1617 if (mMixBuffer != NULL) delete[] mMixBuffer; 1618 mMixBuffer = new int16_t[mFrameCount * 2]; 1619 memset(mMixBuffer, 0, mFrameCount * 2 * sizeof(int16_t)); 1620 1621 // force reconfiguration of effect chains and engines to take new buffer size and audio 1622 // parameters into account 1623 // Note that mLock is not held when readOutputParameters() is called from the constructor 1624 // but in this case nothing is done below as no audio sessions have effect yet so it doesn't 1625 // matter. 1626 // create a copy of mEffectChains as calling moveEffectChain_l() can reorder some effect chains 1627 Vector< sp<EffectChain> > effectChains = mEffectChains; 1628 for (size_t i = 0; i < effectChains.size(); i ++) { 1629 mAudioFlinger->moveEffectChain_l(effectChains[i]->sessionId(), this, this, false); 1630 } 1631} 1632 1633status_t AudioFlinger::PlaybackThread::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames) 1634{ 1635 if (halFrames == 0 || dspFrames == 0) { 1636 return BAD_VALUE; 1637 } 1638 if (initCheck() != NO_ERROR) { 1639 return INVALID_OPERATION; 1640 } 1641 *halFrames = mBytesWritten / audio_stream_frame_size(&mOutput->stream->common); 1642 1643 return mOutput->stream->get_render_position(mOutput->stream, dspFrames); 1644} 1645 1646uint32_t AudioFlinger::PlaybackThread::hasAudioSession(int sessionId) 1647{ 1648 Mutex::Autolock _l(mLock); 1649 uint32_t result = 0; 1650 if (getEffectChain_l(sessionId) != 0) { 1651 result = EFFECT_SESSION; 1652 } 1653 1654 for (size_t i = 0; i < mTracks.size(); ++i) { 1655 sp<Track> track = mTracks[i]; 1656 if (sessionId == track->sessionId() && 1657 !(track->mCblk->flags & CBLK_INVALID_MSK)) { 1658 result |= TRACK_SESSION; 1659 break; 1660 } 1661 } 1662 1663 return result; 1664} 1665 1666uint32_t AudioFlinger::PlaybackThread::getStrategyForSession_l(int sessionId) 1667{ 1668 // session AUDIO_SESSION_OUTPUT_MIX is placed in same strategy as MUSIC stream so that 1669 // it is moved to correct output by audio policy manager when A2DP is connected or disconnected 1670 if (sessionId == AUDIO_SESSION_OUTPUT_MIX) { 1671 return AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC); 1672 } 1673 for (size_t i = 0; i < mTracks.size(); i++) { 1674 sp<Track> track = mTracks[i]; 1675 if (sessionId == track->sessionId() && 1676 !(track->mCblk->flags & CBLK_INVALID_MSK)) { 1677 return AudioSystem::getStrategyForStream((audio_stream_type_t) track->type()); 1678 } 1679 } 1680 return AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC); 1681} 1682 1683 1684// ---------------------------------------------------------------------------- 1685 1686AudioFlinger::MixerThread::MixerThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device) 1687 : PlaybackThread(audioFlinger, output, id, device), 1688 mAudioMixer(0) 1689{ 1690 mType = ThreadBase::MIXER; 1691 mAudioMixer = new AudioMixer(mFrameCount, mSampleRate); 1692 1693 // FIXME - Current mixer implementation only supports stereo output 1694 if (mChannelCount == 1) { 1695 LOGE("Invalid audio hardware channel count"); 1696 } 1697} 1698 1699AudioFlinger::MixerThread::~MixerThread() 1700{ 1701 delete mAudioMixer; 1702} 1703 1704bool AudioFlinger::MixerThread::threadLoop() 1705{ 1706 Vector< sp<Track> > tracksToRemove; 1707 uint32_t mixerStatus = MIXER_IDLE; 1708 nsecs_t standbyTime = systemTime(); 1709 size_t mixBufferSize = mFrameCount * mFrameSize; 1710 // FIXME: Relaxed timing because of a certain device that can't meet latency 1711 // Should be reduced to 2x after the vendor fixes the driver issue 1712 nsecs_t maxPeriod = seconds(mFrameCount) / mSampleRate * 3; 1713 nsecs_t lastWarning = 0; 1714 bool longStandbyExit = false; 1715 uint32_t activeSleepTime = activeSleepTimeUs(); 1716 uint32_t idleSleepTime = idleSleepTimeUs(); 1717 uint32_t sleepTime = idleSleepTime; 1718 Vector< sp<EffectChain> > effectChains; 1719#ifdef DEBUG_CPU_USAGE 1720 ThreadCpuUsage cpu; 1721 const CentralTendencyStatistics& stats = cpu.statistics(); 1722#endif 1723 1724 acquireWakeLock(); 1725 1726 while (!exitPending()) 1727 { 1728#ifdef DEBUG_CPU_USAGE 1729 cpu.sampleAndEnable(); 1730 unsigned n = stats.n(); 1731 // cpu.elapsed() is expensive, so don't call it every loop 1732 if ((n & 127) == 1) { 1733 long long elapsed = cpu.elapsed(); 1734 if (elapsed >= DEBUG_CPU_USAGE * 1000000000LL) { 1735 double perLoop = elapsed / (double) n; 1736 double perLoop100 = perLoop * 0.01; 1737 double mean = stats.mean(); 1738 double stddev = stats.stddev(); 1739 double minimum = stats.minimum(); 1740 double maximum = stats.maximum(); 1741 cpu.resetStatistics(); 1742 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", 1743 elapsed * .000000001, n, perLoop * .000001, 1744 mean * .001, 1745 stddev * .001, 1746 minimum * .001, 1747 maximum * .001, 1748 mean / perLoop100, 1749 stddev / perLoop100, 1750 minimum / perLoop100, 1751 maximum / perLoop100); 1752 } 1753 } 1754#endif 1755 processConfigEvents(); 1756 1757 mixerStatus = MIXER_IDLE; 1758 { // scope for mLock 1759 1760 Mutex::Autolock _l(mLock); 1761 1762 if (checkForNewParameters_l()) { 1763 mixBufferSize = mFrameCount * mFrameSize; 1764 // FIXME: Relaxed timing because of a certain device that can't meet latency 1765 // Should be reduced to 2x after the vendor fixes the driver issue 1766 maxPeriod = seconds(mFrameCount) / mSampleRate * 3; 1767 activeSleepTime = activeSleepTimeUs(); 1768 idleSleepTime = idleSleepTimeUs(); 1769 } 1770 1771 const SortedVector< wp<Track> >& activeTracks = mActiveTracks; 1772 1773 // put audio hardware into standby after short delay 1774 if UNLIKELY((!activeTracks.size() && systemTime() > standbyTime) || 1775 mSuspended) { 1776 if (!mStandby) { 1777 LOGV("Audio hardware entering standby, mixer %p, mSuspended %d\n", this, mSuspended); 1778 mOutput->stream->common.standby(&mOutput->stream->common); 1779 mStandby = true; 1780 mBytesWritten = 0; 1781 } 1782 1783 if (!activeTracks.size() && mConfigEvents.isEmpty()) { 1784 // we're about to wait, flush the binder command buffer 1785 IPCThreadState::self()->flushCommands(); 1786 1787 if (exitPending()) break; 1788 1789 releaseWakeLock_l(); 1790 // wait until we have something to do... 1791 LOGV("MixerThread %p TID %d going to sleep\n", this, gettid()); 1792 mWaitWorkCV.wait(mLock); 1793 LOGV("MixerThread %p TID %d waking up\n", this, gettid()); 1794 acquireWakeLock_l(); 1795 1796 if (mMasterMute == false) { 1797 char value[PROPERTY_VALUE_MAX]; 1798 property_get("ro.audio.silent", value, "0"); 1799 if (atoi(value)) { 1800 LOGD("Silence is golden"); 1801 setMasterMute(true); 1802 } 1803 } 1804 1805 standbyTime = systemTime() + kStandbyTimeInNsecs; 1806 sleepTime = idleSleepTime; 1807 continue; 1808 } 1809 } 1810 1811 mixerStatus = prepareTracks_l(activeTracks, &tracksToRemove); 1812 1813 // prevent any changes in effect chain list and in each effect chain 1814 // during mixing and effect process as the audio buffers could be deleted 1815 // or modified if an effect is created or deleted 1816 lockEffectChains_l(effectChains); 1817 } 1818 1819 if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) { 1820 // mix buffers... 1821 mAudioMixer->process(); 1822 sleepTime = 0; 1823 standbyTime = systemTime() + kStandbyTimeInNsecs; 1824 //TODO: delay standby when effects have a tail 1825 } else { 1826 // If no tracks are ready, sleep once for the duration of an output 1827 // buffer size, then write 0s to the output 1828 if (sleepTime == 0) { 1829 if (mixerStatus == MIXER_TRACKS_ENABLED) { 1830 sleepTime = activeSleepTime; 1831 } else { 1832 sleepTime = idleSleepTime; 1833 } 1834 } else if (mBytesWritten != 0 || 1835 (mixerStatus == MIXER_TRACKS_ENABLED && longStandbyExit)) { 1836 memset (mMixBuffer, 0, mixBufferSize); 1837 sleepTime = 0; 1838 LOGV_IF((mBytesWritten == 0 && (mixerStatus == MIXER_TRACKS_ENABLED && longStandbyExit)), "anticipated start"); 1839 } 1840 // TODO add standby time extension fct of effect tail 1841 } 1842 1843 if (mSuspended) { 1844 sleepTime = suspendSleepTimeUs(); 1845 } 1846 // sleepTime == 0 means we must write to audio hardware 1847 if (sleepTime == 0) { 1848 for (size_t i = 0; i < effectChains.size(); i ++) { 1849 effectChains[i]->process_l(); 1850 } 1851 // enable changes in effect chain 1852 unlockEffectChains(effectChains); 1853 mLastWriteTime = systemTime(); 1854 mInWrite = true; 1855 mBytesWritten += mixBufferSize; 1856 1857 int bytesWritten = (int)mOutput->stream->write(mOutput->stream, mMixBuffer, mixBufferSize); 1858 if (bytesWritten < 0) mBytesWritten -= mixBufferSize; 1859 mNumWrites++; 1860 mInWrite = false; 1861 nsecs_t now = systemTime(); 1862 nsecs_t delta = now - mLastWriteTime; 1863 if (delta > maxPeriod) { 1864 mNumDelayedWrites++; 1865 if ((now - lastWarning) > kWarningThrottle) { 1866 LOGW("write blocked for %llu msecs, %d delayed writes, thread %p", 1867 ns2ms(delta), mNumDelayedWrites, this); 1868 lastWarning = now; 1869 } 1870 if (mStandby) { 1871 longStandbyExit = true; 1872 } 1873 } 1874 mStandby = false; 1875 } else { 1876 // enable changes in effect chain 1877 unlockEffectChains(effectChains); 1878 usleep(sleepTime); 1879 } 1880 1881 // finally let go of all our tracks, without the lock held 1882 // since we can't guarantee the destructors won't acquire that 1883 // same lock. 1884 tracksToRemove.clear(); 1885 1886 // Effect chains will be actually deleted here if they were removed from 1887 // mEffectChains list during mixing or effects processing 1888 effectChains.clear(); 1889 } 1890 1891 if (!mStandby) { 1892 mOutput->stream->common.standby(&mOutput->stream->common); 1893 } 1894 1895 releaseWakeLock(); 1896 1897 LOGV("MixerThread %p exiting", this); 1898 return false; 1899} 1900 1901// prepareTracks_l() must be called with ThreadBase::mLock held 1902uint32_t AudioFlinger::MixerThread::prepareTracks_l(const SortedVector< wp<Track> >& activeTracks, Vector< sp<Track> > *tracksToRemove) 1903{ 1904 1905 uint32_t mixerStatus = MIXER_IDLE; 1906 // find out which tracks need to be processed 1907 size_t count = activeTracks.size(); 1908 size_t mixedTracks = 0; 1909 size_t tracksWithEffect = 0; 1910 1911 float masterVolume = mMasterVolume; 1912 bool masterMute = mMasterMute; 1913 1914 if (masterMute) { 1915 masterVolume = 0; 1916 } 1917 // Delegate master volume control to effect in output mix effect chain if needed 1918 sp<EffectChain> chain = getEffectChain_l(AUDIO_SESSION_OUTPUT_MIX); 1919 if (chain != 0) { 1920 uint32_t v = (uint32_t)(masterVolume * (1 << 24)); 1921 chain->setVolume_l(&v, &v); 1922 masterVolume = (float)((v + (1 << 23)) >> 24); 1923 chain.clear(); 1924 } 1925 1926 for (size_t i=0 ; i<count ; i++) { 1927 sp<Track> t = activeTracks[i].promote(); 1928 if (t == 0) continue; 1929 1930 Track* const track = t.get(); 1931 audio_track_cblk_t* cblk = track->cblk(); 1932 1933 // The first time a track is added we wait 1934 // for all its buffers to be filled before processing it 1935 mAudioMixer->setActiveTrack(track->name()); 1936 if (cblk->framesReady() && track->isReady() && 1937 !track->isPaused() && !track->isTerminated()) 1938 { 1939 //LOGV("track %d u=%08x, s=%08x [OK] on thread %p", track->name(), cblk->user, cblk->server, this); 1940 1941 mixedTracks++; 1942 1943 // track->mainBuffer() != mMixBuffer means there is an effect chain 1944 // connected to the track 1945 chain.clear(); 1946 if (track->mainBuffer() != mMixBuffer) { 1947 chain = getEffectChain_l(track->sessionId()); 1948 // Delegate volume control to effect in track effect chain if needed 1949 if (chain != 0) { 1950 tracksWithEffect++; 1951 } else { 1952 LOGW("prepareTracks_l(): track %08x attached to effect but no chain found on session %d", 1953 track->name(), track->sessionId()); 1954 } 1955 } 1956 1957 1958 int param = AudioMixer::VOLUME; 1959 if (track->mFillingUpStatus == Track::FS_FILLED) { 1960 // no ramp for the first volume setting 1961 track->mFillingUpStatus = Track::FS_ACTIVE; 1962 if (track->mState == TrackBase::RESUMING) { 1963 track->mState = TrackBase::ACTIVE; 1964 param = AudioMixer::RAMP_VOLUME; 1965 } 1966 mAudioMixer->setParameter(AudioMixer::RESAMPLE, AudioMixer::RESET, NULL); 1967 } else if (cblk->server != 0) { 1968 // If the track is stopped before the first frame was mixed, 1969 // do not apply ramp 1970 param = AudioMixer::RAMP_VOLUME; 1971 } 1972 1973 // compute volume for this track 1974 uint32_t vl, vr, va; 1975 if (track->isMuted() || track->isPausing() || 1976 mStreamTypes[track->type()].mute) { 1977 vl = vr = va = 0; 1978 if (track->isPausing()) { 1979 track->setPaused(); 1980 } 1981 } else { 1982 1983 // read original volumes with volume control 1984 float typeVolume = mStreamTypes[track->type()].volume; 1985 float v = masterVolume * typeVolume; 1986 vl = (uint32_t)(v * cblk->volume[0]) << 12; 1987 vr = (uint32_t)(v * cblk->volume[1]) << 12; 1988 1989 va = (uint32_t)(v * cblk->sendLevel); 1990 } 1991 // Delegate volume control to effect in track effect chain if needed 1992 if (chain != 0 && chain->setVolume_l(&vl, &vr)) { 1993 // Do not ramp volume if volume is controlled by effect 1994 param = AudioMixer::VOLUME; 1995 track->mHasVolumeController = true; 1996 } else { 1997 // force no volume ramp when volume controller was just disabled or removed 1998 // from effect chain to avoid volume spike 1999 if (track->mHasVolumeController) { 2000 param = AudioMixer::VOLUME; 2001 } 2002 track->mHasVolumeController = false; 2003 } 2004 2005 // Convert volumes from 8.24 to 4.12 format 2006 int16_t left, right, aux; 2007 uint32_t v_clamped = (vl + (1 << 11)) >> 12; 2008 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2009 left = int16_t(v_clamped); 2010 v_clamped = (vr + (1 << 11)) >> 12; 2011 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2012 right = int16_t(v_clamped); 2013 2014 if (va > MAX_GAIN_INT) va = MAX_GAIN_INT; 2015 aux = int16_t(va); 2016 2017 // XXX: these things DON'T need to be done each time 2018 mAudioMixer->setBufferProvider(track); 2019 mAudioMixer->enable(AudioMixer::MIXING); 2020 2021 mAudioMixer->setParameter(param, AudioMixer::VOLUME0, (void *)left); 2022 mAudioMixer->setParameter(param, AudioMixer::VOLUME1, (void *)right); 2023 mAudioMixer->setParameter(param, AudioMixer::AUXLEVEL, (void *)aux); 2024 mAudioMixer->setParameter( 2025 AudioMixer::TRACK, 2026 AudioMixer::FORMAT, (void *)track->format()); 2027 mAudioMixer->setParameter( 2028 AudioMixer::TRACK, 2029 AudioMixer::CHANNEL_MASK, (void *)track->channelMask()); 2030 mAudioMixer->setParameter( 2031 AudioMixer::RESAMPLE, 2032 AudioMixer::SAMPLE_RATE, 2033 (void *)(cblk->sampleRate)); 2034 mAudioMixer->setParameter( 2035 AudioMixer::TRACK, 2036 AudioMixer::MAIN_BUFFER, (void *)track->mainBuffer()); 2037 mAudioMixer->setParameter( 2038 AudioMixer::TRACK, 2039 AudioMixer::AUX_BUFFER, (void *)track->auxBuffer()); 2040 2041 // reset retry count 2042 track->mRetryCount = kMaxTrackRetries; 2043 mixerStatus = MIXER_TRACKS_READY; 2044 } else { 2045 //LOGV("track %d u=%08x, s=%08x [NOT READY] on thread %p", track->name(), cblk->user, cblk->server, this); 2046 if (track->isStopped()) { 2047 track->reset(); 2048 } 2049 if (track->isTerminated() || track->isStopped() || track->isPaused()) { 2050 // We have consumed all the buffers of this track. 2051 // Remove it from the list of active tracks. 2052 tracksToRemove->add(track); 2053 } else { 2054 // No buffers for this track. Give it a few chances to 2055 // fill a buffer, then remove it from active list. 2056 if (--(track->mRetryCount) <= 0) { 2057 LOGV("BUFFER TIMEOUT: remove(%d) from active list on thread %p", track->name(), this); 2058 tracksToRemove->add(track); 2059 // indicate to client process that the track was disabled because of underrun 2060 android_atomic_or(CBLK_DISABLED_ON, &cblk->flags); 2061 } else if (mixerStatus != MIXER_TRACKS_READY) { 2062 mixerStatus = MIXER_TRACKS_ENABLED; 2063 } 2064 } 2065 mAudioMixer->disable(AudioMixer::MIXING); 2066 } 2067 } 2068 2069 // remove all the tracks that need to be... 2070 count = tracksToRemove->size(); 2071 if (UNLIKELY(count)) { 2072 for (size_t i=0 ; i<count ; i++) { 2073 const sp<Track>& track = tracksToRemove->itemAt(i); 2074 mActiveTracks.remove(track); 2075 if (track->mainBuffer() != mMixBuffer) { 2076 chain = getEffectChain_l(track->sessionId()); 2077 if (chain != 0) { 2078 LOGV("stopping track on chain %p for session Id: %d", chain.get(), track->sessionId()); 2079 chain->decActiveTrackCnt(); 2080 } 2081 } 2082 if (track->isTerminated()) { 2083 removeTrack_l(track); 2084 } 2085 } 2086 } 2087 2088 // mix buffer must be cleared if all tracks are connected to an 2089 // effect chain as in this case the mixer will not write to 2090 // mix buffer and track effects will accumulate into it 2091 if (mixedTracks != 0 && mixedTracks == tracksWithEffect) { 2092 memset(mMixBuffer, 0, mFrameCount * mChannelCount * sizeof(int16_t)); 2093 } 2094 2095 return mixerStatus; 2096} 2097 2098void AudioFlinger::MixerThread::invalidateTracks(int streamType) 2099{ 2100 LOGV ("MixerThread::invalidateTracks() mixer %p, streamType %d, mTracks.size %d", 2101 this, streamType, mTracks.size()); 2102 Mutex::Autolock _l(mLock); 2103 2104 size_t size = mTracks.size(); 2105 for (size_t i = 0; i < size; i++) { 2106 sp<Track> t = mTracks[i]; 2107 if (t->type() == streamType) { 2108 android_atomic_or(CBLK_INVALID_ON, &t->mCblk->flags); 2109 t->mCblk->cv.signal(); 2110 } 2111 } 2112} 2113 2114 2115// getTrackName_l() must be called with ThreadBase::mLock held 2116int AudioFlinger::MixerThread::getTrackName_l() 2117{ 2118 return mAudioMixer->getTrackName(); 2119} 2120 2121// deleteTrackName_l() must be called with ThreadBase::mLock held 2122void AudioFlinger::MixerThread::deleteTrackName_l(int name) 2123{ 2124 LOGV("remove track (%d) and delete from mixer", name); 2125 mAudioMixer->deleteTrackName(name); 2126} 2127 2128// checkForNewParameters_l() must be called with ThreadBase::mLock held 2129bool AudioFlinger::MixerThread::checkForNewParameters_l() 2130{ 2131 bool reconfig = false; 2132 2133 while (!mNewParameters.isEmpty()) { 2134 status_t status = NO_ERROR; 2135 String8 keyValuePair = mNewParameters[0]; 2136 AudioParameter param = AudioParameter(keyValuePair); 2137 int value; 2138 2139 if (param.getInt(String8(AudioParameter::keySamplingRate), value) == NO_ERROR) { 2140 reconfig = true; 2141 } 2142 if (param.getInt(String8(AudioParameter::keyFormat), value) == NO_ERROR) { 2143 if (value != AUDIO_FORMAT_PCM_16_BIT) { 2144 status = BAD_VALUE; 2145 } else { 2146 reconfig = true; 2147 } 2148 } 2149 if (param.getInt(String8(AudioParameter::keyChannels), value) == NO_ERROR) { 2150 if (value != AUDIO_CHANNEL_OUT_STEREO) { 2151 status = BAD_VALUE; 2152 } else { 2153 reconfig = true; 2154 } 2155 } 2156 if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) { 2157 // do not accept frame count changes if tracks are open as the track buffer 2158 // size depends on frame count and correct behavior would not be garantied 2159 // if frame count is changed after track creation 2160 if (!mTracks.isEmpty()) { 2161 status = INVALID_OPERATION; 2162 } else { 2163 reconfig = true; 2164 } 2165 } 2166 if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) { 2167 // when changing the audio output device, call addBatteryData to notify 2168 // the change 2169 if ((int)mDevice != value) { 2170 uint32_t params = 0; 2171 // check whether speaker is on 2172 if (value & AUDIO_DEVICE_OUT_SPEAKER) { 2173 params |= IMediaPlayerService::kBatteryDataSpeakerOn; 2174 } 2175 2176 int deviceWithoutSpeaker 2177 = AUDIO_DEVICE_OUT_ALL & ~AUDIO_DEVICE_OUT_SPEAKER; 2178 // check if any other device (except speaker) is on 2179 if (value & deviceWithoutSpeaker ) { 2180 params |= IMediaPlayerService::kBatteryDataOtherAudioDeviceOn; 2181 } 2182 2183 if (params != 0) { 2184 addBatteryData(params); 2185 } 2186 } 2187 2188 // forward device change to effects that have requested to be 2189 // aware of attached audio device. 2190 mDevice = (uint32_t)value; 2191 for (size_t i = 0; i < mEffectChains.size(); i++) { 2192 mEffectChains[i]->setDevice_l(mDevice); 2193 } 2194 } 2195 2196 if (status == NO_ERROR) { 2197 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2198 keyValuePair.string()); 2199 if (!mStandby && status == INVALID_OPERATION) { 2200 mOutput->stream->common.standby(&mOutput->stream->common); 2201 mStandby = true; 2202 mBytesWritten = 0; 2203 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2204 keyValuePair.string()); 2205 } 2206 if (status == NO_ERROR && reconfig) { 2207 delete mAudioMixer; 2208 readOutputParameters(); 2209 mAudioMixer = new AudioMixer(mFrameCount, mSampleRate); 2210 for (size_t i = 0; i < mTracks.size() ; i++) { 2211 int name = getTrackName_l(); 2212 if (name < 0) break; 2213 mTracks[i]->mName = name; 2214 // limit track sample rate to 2 x new output sample rate 2215 if (mTracks[i]->mCblk->sampleRate > 2 * sampleRate()) { 2216 mTracks[i]->mCblk->sampleRate = 2 * sampleRate(); 2217 } 2218 } 2219 sendConfigEvent_l(AudioSystem::OUTPUT_CONFIG_CHANGED); 2220 } 2221 } 2222 2223 mNewParameters.removeAt(0); 2224 2225 mParamStatus = status; 2226 mParamCond.signal(); 2227 mWaitWorkCV.wait(mLock); 2228 } 2229 return reconfig; 2230} 2231 2232status_t AudioFlinger::MixerThread::dumpInternals(int fd, const Vector<String16>& args) 2233{ 2234 const size_t SIZE = 256; 2235 char buffer[SIZE]; 2236 String8 result; 2237 2238 PlaybackThread::dumpInternals(fd, args); 2239 2240 snprintf(buffer, SIZE, "AudioMixer tracks: %08x\n", mAudioMixer->trackNames()); 2241 result.append(buffer); 2242 write(fd, result.string(), result.size()); 2243 return NO_ERROR; 2244} 2245 2246uint32_t AudioFlinger::MixerThread::activeSleepTimeUs() 2247{ 2248 return (uint32_t)(mOutput->stream->get_latency(mOutput->stream) * 1000) / 2; 2249} 2250 2251uint32_t AudioFlinger::MixerThread::idleSleepTimeUs() 2252{ 2253 return (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000) / 2; 2254} 2255 2256uint32_t AudioFlinger::MixerThread::suspendSleepTimeUs() 2257{ 2258 return (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000); 2259} 2260 2261// ---------------------------------------------------------------------------- 2262AudioFlinger::DirectOutputThread::DirectOutputThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device) 2263 : PlaybackThread(audioFlinger, output, id, device) 2264{ 2265 mType = ThreadBase::DIRECT; 2266} 2267 2268AudioFlinger::DirectOutputThread::~DirectOutputThread() 2269{ 2270} 2271 2272 2273static inline int16_t clamp16(int32_t sample) 2274{ 2275 if ((sample>>15) ^ (sample>>31)) 2276 sample = 0x7FFF ^ (sample>>31); 2277 return sample; 2278} 2279 2280static inline 2281int32_t mul(int16_t in, int16_t v) 2282{ 2283#if defined(__arm__) && !defined(__thumb__) 2284 int32_t out; 2285 asm( "smulbb %[out], %[in], %[v] \n" 2286 : [out]"=r"(out) 2287 : [in]"%r"(in), [v]"r"(v) 2288 : ); 2289 return out; 2290#else 2291 return in * int32_t(v); 2292#endif 2293} 2294 2295void AudioFlinger::DirectOutputThread::applyVolume(uint16_t leftVol, uint16_t rightVol, bool ramp) 2296{ 2297 // Do not apply volume on compressed audio 2298 if (!audio_is_linear_pcm(mFormat)) { 2299 return; 2300 } 2301 2302 // convert to signed 16 bit before volume calculation 2303 if (mFormat == AUDIO_FORMAT_PCM_8_BIT) { 2304 size_t count = mFrameCount * mChannelCount; 2305 uint8_t *src = (uint8_t *)mMixBuffer + count-1; 2306 int16_t *dst = mMixBuffer + count-1; 2307 while(count--) { 2308 *dst-- = (int16_t)(*src--^0x80) << 8; 2309 } 2310 } 2311 2312 size_t frameCount = mFrameCount; 2313 int16_t *out = mMixBuffer; 2314 if (ramp) { 2315 if (mChannelCount == 1) { 2316 int32_t d = ((int32_t)leftVol - (int32_t)mLeftVolShort) << 16; 2317 int32_t vlInc = d / (int32_t)frameCount; 2318 int32_t vl = ((int32_t)mLeftVolShort << 16); 2319 do { 2320 out[0] = clamp16(mul(out[0], vl >> 16) >> 12); 2321 out++; 2322 vl += vlInc; 2323 } while (--frameCount); 2324 2325 } else { 2326 int32_t d = ((int32_t)leftVol - (int32_t)mLeftVolShort) << 16; 2327 int32_t vlInc = d / (int32_t)frameCount; 2328 d = ((int32_t)rightVol - (int32_t)mRightVolShort) << 16; 2329 int32_t vrInc = d / (int32_t)frameCount; 2330 int32_t vl = ((int32_t)mLeftVolShort << 16); 2331 int32_t vr = ((int32_t)mRightVolShort << 16); 2332 do { 2333 out[0] = clamp16(mul(out[0], vl >> 16) >> 12); 2334 out[1] = clamp16(mul(out[1], vr >> 16) >> 12); 2335 out += 2; 2336 vl += vlInc; 2337 vr += vrInc; 2338 } while (--frameCount); 2339 } 2340 } else { 2341 if (mChannelCount == 1) { 2342 do { 2343 out[0] = clamp16(mul(out[0], leftVol) >> 12); 2344 out++; 2345 } while (--frameCount); 2346 } else { 2347 do { 2348 out[0] = clamp16(mul(out[0], leftVol) >> 12); 2349 out[1] = clamp16(mul(out[1], rightVol) >> 12); 2350 out += 2; 2351 } while (--frameCount); 2352 } 2353 } 2354 2355 // convert back to unsigned 8 bit after volume calculation 2356 if (mFormat == AUDIO_FORMAT_PCM_8_BIT) { 2357 size_t count = mFrameCount * mChannelCount; 2358 int16_t *src = mMixBuffer; 2359 uint8_t *dst = (uint8_t *)mMixBuffer; 2360 while(count--) { 2361 *dst++ = (uint8_t)(((int32_t)*src++ + (1<<7)) >> 8)^0x80; 2362 } 2363 } 2364 2365 mLeftVolShort = leftVol; 2366 mRightVolShort = rightVol; 2367} 2368 2369bool AudioFlinger::DirectOutputThread::threadLoop() 2370{ 2371 uint32_t mixerStatus = MIXER_IDLE; 2372 sp<Track> trackToRemove; 2373 sp<Track> activeTrack; 2374 nsecs_t standbyTime = systemTime(); 2375 int8_t *curBuf; 2376 size_t mixBufferSize = mFrameCount*mFrameSize; 2377 uint32_t activeSleepTime = activeSleepTimeUs(); 2378 uint32_t idleSleepTime = idleSleepTimeUs(); 2379 uint32_t sleepTime = idleSleepTime; 2380 // use shorter standby delay as on normal output to release 2381 // hardware resources as soon as possible 2382 nsecs_t standbyDelay = microseconds(activeSleepTime*2); 2383 2384 acquireWakeLock(); 2385 2386 while (!exitPending()) 2387 { 2388 bool rampVolume; 2389 uint16_t leftVol; 2390 uint16_t rightVol; 2391 Vector< sp<EffectChain> > effectChains; 2392 2393 processConfigEvents(); 2394 2395 mixerStatus = MIXER_IDLE; 2396 2397 { // scope for the mLock 2398 2399 Mutex::Autolock _l(mLock); 2400 2401 if (checkForNewParameters_l()) { 2402 mixBufferSize = mFrameCount*mFrameSize; 2403 activeSleepTime = activeSleepTimeUs(); 2404 idleSleepTime = idleSleepTimeUs(); 2405 standbyDelay = microseconds(activeSleepTime*2); 2406 } 2407 2408 // put audio hardware into standby after short delay 2409 if UNLIKELY((!mActiveTracks.size() && systemTime() > standbyTime) || 2410 mSuspended) { 2411 // wait until we have something to do... 2412 if (!mStandby) { 2413 LOGV("Audio hardware entering standby, mixer %p\n", this); 2414 mOutput->stream->common.standby(&mOutput->stream->common); 2415 mStandby = true; 2416 mBytesWritten = 0; 2417 } 2418 2419 if (!mActiveTracks.size() && mConfigEvents.isEmpty()) { 2420 // we're about to wait, flush the binder command buffer 2421 IPCThreadState::self()->flushCommands(); 2422 2423 if (exitPending()) break; 2424 2425 releaseWakeLock_l(); 2426 LOGV("DirectOutputThread %p TID %d going to sleep\n", this, gettid()); 2427 mWaitWorkCV.wait(mLock); 2428 LOGV("DirectOutputThread %p TID %d waking up in active mode\n", this, gettid()); 2429 acquireWakeLock_l(); 2430 2431 if (mMasterMute == false) { 2432 char value[PROPERTY_VALUE_MAX]; 2433 property_get("ro.audio.silent", value, "0"); 2434 if (atoi(value)) { 2435 LOGD("Silence is golden"); 2436 setMasterMute(true); 2437 } 2438 } 2439 2440 standbyTime = systemTime() + standbyDelay; 2441 sleepTime = idleSleepTime; 2442 continue; 2443 } 2444 } 2445 2446 effectChains = mEffectChains; 2447 2448 // find out which tracks need to be processed 2449 if (mActiveTracks.size() != 0) { 2450 sp<Track> t = mActiveTracks[0].promote(); 2451 if (t == 0) continue; 2452 2453 Track* const track = t.get(); 2454 audio_track_cblk_t* cblk = track->cblk(); 2455 2456 // The first time a track is added we wait 2457 // for all its buffers to be filled before processing it 2458 if (cblk->framesReady() && track->isReady() && 2459 !track->isPaused() && !track->isTerminated()) 2460 { 2461 //LOGV("track %d u=%08x, s=%08x [OK]", track->name(), cblk->user, cblk->server); 2462 2463 if (track->mFillingUpStatus == Track::FS_FILLED) { 2464 track->mFillingUpStatus = Track::FS_ACTIVE; 2465 mLeftVolFloat = mRightVolFloat = 0; 2466 mLeftVolShort = mRightVolShort = 0; 2467 if (track->mState == TrackBase::RESUMING) { 2468 track->mState = TrackBase::ACTIVE; 2469 rampVolume = true; 2470 } 2471 } else if (cblk->server != 0) { 2472 // If the track is stopped before the first frame was mixed, 2473 // do not apply ramp 2474 rampVolume = true; 2475 } 2476 // compute volume for this track 2477 float left, right; 2478 if (track->isMuted() || mMasterMute || track->isPausing() || 2479 mStreamTypes[track->type()].mute) { 2480 left = right = 0; 2481 if (track->isPausing()) { 2482 track->setPaused(); 2483 } 2484 } else { 2485 float typeVolume = mStreamTypes[track->type()].volume; 2486 float v = mMasterVolume * typeVolume; 2487 float v_clamped = v * cblk->volume[0]; 2488 if (v_clamped > MAX_GAIN) v_clamped = MAX_GAIN; 2489 left = v_clamped/MAX_GAIN; 2490 v_clamped = v * cblk->volume[1]; 2491 if (v_clamped > MAX_GAIN) v_clamped = MAX_GAIN; 2492 right = v_clamped/MAX_GAIN; 2493 } 2494 2495 if (left != mLeftVolFloat || right != mRightVolFloat) { 2496 mLeftVolFloat = left; 2497 mRightVolFloat = right; 2498 2499 // If audio HAL implements volume control, 2500 // force software volume to nominal value 2501 if (mOutput->stream->set_volume(mOutput->stream, left, right) == NO_ERROR) { 2502 left = 1.0f; 2503 right = 1.0f; 2504 } 2505 2506 // Convert volumes from float to 8.24 2507 uint32_t vl = (uint32_t)(left * (1 << 24)); 2508 uint32_t vr = (uint32_t)(right * (1 << 24)); 2509 2510 // Delegate volume control to effect in track effect chain if needed 2511 // only one effect chain can be present on DirectOutputThread, so if 2512 // there is one, the track is connected to it 2513 if (!effectChains.isEmpty()) { 2514 // Do not ramp volume if volume is controlled by effect 2515 if(effectChains[0]->setVolume_l(&vl, &vr)) { 2516 rampVolume = false; 2517 } 2518 } 2519 2520 // Convert volumes from 8.24 to 4.12 format 2521 uint32_t v_clamped = (vl + (1 << 11)) >> 12; 2522 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2523 leftVol = (uint16_t)v_clamped; 2524 v_clamped = (vr + (1 << 11)) >> 12; 2525 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2526 rightVol = (uint16_t)v_clamped; 2527 } else { 2528 leftVol = mLeftVolShort; 2529 rightVol = mRightVolShort; 2530 rampVolume = false; 2531 } 2532 2533 // reset retry count 2534 track->mRetryCount = kMaxTrackRetriesDirect; 2535 activeTrack = t; 2536 mixerStatus = MIXER_TRACKS_READY; 2537 } else { 2538 //LOGV("track %d u=%08x, s=%08x [NOT READY]", track->name(), cblk->user, cblk->server); 2539 if (track->isStopped()) { 2540 track->reset(); 2541 } 2542 if (track->isTerminated() || track->isStopped() || track->isPaused()) { 2543 // We have consumed all the buffers of this track. 2544 // Remove it from the list of active tracks. 2545 trackToRemove = track; 2546 } else { 2547 // No buffers for this track. Give it a few chances to 2548 // fill a buffer, then remove it from active list. 2549 if (--(track->mRetryCount) <= 0) { 2550 LOGV("BUFFER TIMEOUT: remove(%d) from active list", track->name()); 2551 trackToRemove = track; 2552 } else { 2553 mixerStatus = MIXER_TRACKS_ENABLED; 2554 } 2555 } 2556 } 2557 } 2558 2559 // remove all the tracks that need to be... 2560 if (UNLIKELY(trackToRemove != 0)) { 2561 mActiveTracks.remove(trackToRemove); 2562 if (!effectChains.isEmpty()) { 2563 LOGV("stopping track on chain %p for session Id: %d", effectChains[0].get(), 2564 trackToRemove->sessionId()); 2565 effectChains[0]->decActiveTrackCnt(); 2566 } 2567 if (trackToRemove->isTerminated()) { 2568 removeTrack_l(trackToRemove); 2569 } 2570 } 2571 2572 lockEffectChains_l(effectChains); 2573 } 2574 2575 if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) { 2576 AudioBufferProvider::Buffer buffer; 2577 size_t frameCount = mFrameCount; 2578 curBuf = (int8_t *)mMixBuffer; 2579 // output audio to hardware 2580 while (frameCount) { 2581 buffer.frameCount = frameCount; 2582 activeTrack->getNextBuffer(&buffer); 2583 if (UNLIKELY(buffer.raw == 0)) { 2584 memset(curBuf, 0, frameCount * mFrameSize); 2585 break; 2586 } 2587 memcpy(curBuf, buffer.raw, buffer.frameCount * mFrameSize); 2588 frameCount -= buffer.frameCount; 2589 curBuf += buffer.frameCount * mFrameSize; 2590 activeTrack->releaseBuffer(&buffer); 2591 } 2592 sleepTime = 0; 2593 standbyTime = systemTime() + standbyDelay; 2594 } else { 2595 if (sleepTime == 0) { 2596 if (mixerStatus == MIXER_TRACKS_ENABLED) { 2597 sleepTime = activeSleepTime; 2598 } else { 2599 sleepTime = idleSleepTime; 2600 } 2601 } else if (mBytesWritten != 0 && audio_is_linear_pcm(mFormat)) { 2602 memset (mMixBuffer, 0, mFrameCount * mFrameSize); 2603 sleepTime = 0; 2604 } 2605 } 2606 2607 if (mSuspended) { 2608 sleepTime = suspendSleepTimeUs(); 2609 } 2610 // sleepTime == 0 means we must write to audio hardware 2611 if (sleepTime == 0) { 2612 if (mixerStatus == MIXER_TRACKS_READY) { 2613 applyVolume(leftVol, rightVol, rampVolume); 2614 } 2615 for (size_t i = 0; i < effectChains.size(); i ++) { 2616 effectChains[i]->process_l(); 2617 } 2618 unlockEffectChains(effectChains); 2619 2620 mLastWriteTime = systemTime(); 2621 mInWrite = true; 2622 mBytesWritten += mixBufferSize; 2623 int bytesWritten = (int)mOutput->stream->write(mOutput->stream, mMixBuffer, mixBufferSize); 2624 if (bytesWritten < 0) mBytesWritten -= mixBufferSize; 2625 mNumWrites++; 2626 mInWrite = false; 2627 mStandby = false; 2628 } else { 2629 unlockEffectChains(effectChains); 2630 usleep(sleepTime); 2631 } 2632 2633 // finally let go of removed track, without the lock held 2634 // since we can't guarantee the destructors won't acquire that 2635 // same lock. 2636 trackToRemove.clear(); 2637 activeTrack.clear(); 2638 2639 // Effect chains will be actually deleted here if they were removed from 2640 // mEffectChains list during mixing or effects processing 2641 effectChains.clear(); 2642 } 2643 2644 if (!mStandby) { 2645 mOutput->stream->common.standby(&mOutput->stream->common); 2646 } 2647 2648 releaseWakeLock(); 2649 2650 LOGV("DirectOutputThread %p exiting", this); 2651 return false; 2652} 2653 2654// getTrackName_l() must be called with ThreadBase::mLock held 2655int AudioFlinger::DirectOutputThread::getTrackName_l() 2656{ 2657 return 0; 2658} 2659 2660// deleteTrackName_l() must be called with ThreadBase::mLock held 2661void AudioFlinger::DirectOutputThread::deleteTrackName_l(int name) 2662{ 2663} 2664 2665// checkForNewParameters_l() must be called with ThreadBase::mLock held 2666bool AudioFlinger::DirectOutputThread::checkForNewParameters_l() 2667{ 2668 bool reconfig = false; 2669 2670 while (!mNewParameters.isEmpty()) { 2671 status_t status = NO_ERROR; 2672 String8 keyValuePair = mNewParameters[0]; 2673 AudioParameter param = AudioParameter(keyValuePair); 2674 int value; 2675 2676 if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) { 2677 // do not accept frame count changes if tracks are open as the track buffer 2678 // size depends on frame count and correct behavior would not be garantied 2679 // if frame count is changed after track creation 2680 if (!mTracks.isEmpty()) { 2681 status = INVALID_OPERATION; 2682 } else { 2683 reconfig = true; 2684 } 2685 } 2686 if (status == NO_ERROR) { 2687 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2688 keyValuePair.string()); 2689 if (!mStandby && status == INVALID_OPERATION) { 2690 mOutput->stream->common.standby(&mOutput->stream->common); 2691 mStandby = true; 2692 mBytesWritten = 0; 2693 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2694 keyValuePair.string()); 2695 } 2696 if (status == NO_ERROR && reconfig) { 2697 readOutputParameters(); 2698 sendConfigEvent_l(AudioSystem::OUTPUT_CONFIG_CHANGED); 2699 } 2700 } 2701 2702 mNewParameters.removeAt(0); 2703 2704 mParamStatus = status; 2705 mParamCond.signal(); 2706 mWaitWorkCV.wait(mLock); 2707 } 2708 return reconfig; 2709} 2710 2711uint32_t AudioFlinger::DirectOutputThread::activeSleepTimeUs() 2712{ 2713 uint32_t time; 2714 if (audio_is_linear_pcm(mFormat)) { 2715 time = (uint32_t)(mOutput->stream->get_latency(mOutput->stream) * 1000) / 2; 2716 } else { 2717 time = 10000; 2718 } 2719 return time; 2720} 2721 2722uint32_t AudioFlinger::DirectOutputThread::idleSleepTimeUs() 2723{ 2724 uint32_t time; 2725 if (audio_is_linear_pcm(mFormat)) { 2726 time = (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000) / 2; 2727 } else { 2728 time = 10000; 2729 } 2730 return time; 2731} 2732 2733uint32_t AudioFlinger::DirectOutputThread::suspendSleepTimeUs() 2734{ 2735 uint32_t time; 2736 if (audio_is_linear_pcm(mFormat)) { 2737 time = (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000); 2738 } else { 2739 time = 10000; 2740 } 2741 return time; 2742} 2743 2744 2745// ---------------------------------------------------------------------------- 2746 2747AudioFlinger::DuplicatingThread::DuplicatingThread(const sp<AudioFlinger>& audioFlinger, AudioFlinger::MixerThread* mainThread, int id) 2748 : MixerThread(audioFlinger, mainThread->getOutput(), id, mainThread->device()), mWaitTimeMs(UINT_MAX) 2749{ 2750 mType = ThreadBase::DUPLICATING; 2751 addOutputTrack(mainThread); 2752} 2753 2754AudioFlinger::DuplicatingThread::~DuplicatingThread() 2755{ 2756 for (size_t i = 0; i < mOutputTracks.size(); i++) { 2757 mOutputTracks[i]->destroy(); 2758 } 2759 mOutputTracks.clear(); 2760} 2761 2762bool AudioFlinger::DuplicatingThread::threadLoop() 2763{ 2764 Vector< sp<Track> > tracksToRemove; 2765 uint32_t mixerStatus = MIXER_IDLE; 2766 nsecs_t standbyTime = systemTime(); 2767 size_t mixBufferSize = mFrameCount*mFrameSize; 2768 SortedVector< sp<OutputTrack> > outputTracks; 2769 uint32_t writeFrames = 0; 2770 uint32_t activeSleepTime = activeSleepTimeUs(); 2771 uint32_t idleSleepTime = idleSleepTimeUs(); 2772 uint32_t sleepTime = idleSleepTime; 2773 Vector< sp<EffectChain> > effectChains; 2774 2775 acquireWakeLock(); 2776 2777 while (!exitPending()) 2778 { 2779 processConfigEvents(); 2780 2781 mixerStatus = MIXER_IDLE; 2782 { // scope for the mLock 2783 2784 Mutex::Autolock _l(mLock); 2785 2786 if (checkForNewParameters_l()) { 2787 mixBufferSize = mFrameCount*mFrameSize; 2788 updateWaitTime(); 2789 activeSleepTime = activeSleepTimeUs(); 2790 idleSleepTime = idleSleepTimeUs(); 2791 } 2792 2793 const SortedVector< wp<Track> >& activeTracks = mActiveTracks; 2794 2795 for (size_t i = 0; i < mOutputTracks.size(); i++) { 2796 outputTracks.add(mOutputTracks[i]); 2797 } 2798 2799 // put audio hardware into standby after short delay 2800 if UNLIKELY((!activeTracks.size() && systemTime() > standbyTime) || 2801 mSuspended) { 2802 if (!mStandby) { 2803 for (size_t i = 0; i < outputTracks.size(); i++) { 2804 outputTracks[i]->stop(); 2805 } 2806 mStandby = true; 2807 mBytesWritten = 0; 2808 } 2809 2810 if (!activeTracks.size() && mConfigEvents.isEmpty()) { 2811 // we're about to wait, flush the binder command buffer 2812 IPCThreadState::self()->flushCommands(); 2813 outputTracks.clear(); 2814 2815 if (exitPending()) break; 2816 2817 releaseWakeLock_l(); 2818 LOGV("DuplicatingThread %p TID %d going to sleep\n", this, gettid()); 2819 mWaitWorkCV.wait(mLock); 2820 LOGV("DuplicatingThread %p TID %d waking up\n", this, gettid()); 2821 acquireWakeLock_l(); 2822 2823 if (mMasterMute == false) { 2824 char value[PROPERTY_VALUE_MAX]; 2825 property_get("ro.audio.silent", value, "0"); 2826 if (atoi(value)) { 2827 LOGD("Silence is golden"); 2828 setMasterMute(true); 2829 } 2830 } 2831 2832 standbyTime = systemTime() + kStandbyTimeInNsecs; 2833 sleepTime = idleSleepTime; 2834 continue; 2835 } 2836 } 2837 2838 mixerStatus = prepareTracks_l(activeTracks, &tracksToRemove); 2839 2840 // prevent any changes in effect chain list and in each effect chain 2841 // during mixing and effect process as the audio buffers could be deleted 2842 // or modified if an effect is created or deleted 2843 lockEffectChains_l(effectChains); 2844 } 2845 2846 if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) { 2847 // mix buffers... 2848 if (outputsReady(outputTracks)) { 2849 mAudioMixer->process(); 2850 } else { 2851 memset(mMixBuffer, 0, mixBufferSize); 2852 } 2853 sleepTime = 0; 2854 writeFrames = mFrameCount; 2855 } else { 2856 if (sleepTime == 0) { 2857 if (mixerStatus == MIXER_TRACKS_ENABLED) { 2858 sleepTime = activeSleepTime; 2859 } else { 2860 sleepTime = idleSleepTime; 2861 } 2862 } else if (mBytesWritten != 0) { 2863 // flush remaining overflow buffers in output tracks 2864 for (size_t i = 0; i < outputTracks.size(); i++) { 2865 if (outputTracks[i]->isActive()) { 2866 sleepTime = 0; 2867 writeFrames = 0; 2868 memset(mMixBuffer, 0, mixBufferSize); 2869 break; 2870 } 2871 } 2872 } 2873 } 2874 2875 if (mSuspended) { 2876 sleepTime = suspendSleepTimeUs(); 2877 } 2878 // sleepTime == 0 means we must write to audio hardware 2879 if (sleepTime == 0) { 2880 for (size_t i = 0; i < effectChains.size(); i ++) { 2881 effectChains[i]->process_l(); 2882 } 2883 // enable changes in effect chain 2884 unlockEffectChains(effectChains); 2885 2886 standbyTime = systemTime() + kStandbyTimeInNsecs; 2887 for (size_t i = 0; i < outputTracks.size(); i++) { 2888 outputTracks[i]->write(mMixBuffer, writeFrames); 2889 } 2890 mStandby = false; 2891 mBytesWritten += mixBufferSize; 2892 } else { 2893 // enable changes in effect chain 2894 unlockEffectChains(effectChains); 2895 usleep(sleepTime); 2896 } 2897 2898 // finally let go of all our tracks, without the lock held 2899 // since we can't guarantee the destructors won't acquire that 2900 // same lock. 2901 tracksToRemove.clear(); 2902 outputTracks.clear(); 2903 2904 // Effect chains will be actually deleted here if they were removed from 2905 // mEffectChains list during mixing or effects processing 2906 effectChains.clear(); 2907 } 2908 2909 releaseWakeLock(); 2910 2911 return false; 2912} 2913 2914void AudioFlinger::DuplicatingThread::addOutputTrack(MixerThread *thread) 2915{ 2916 int frameCount = (3 * mFrameCount * mSampleRate) / thread->sampleRate(); 2917 OutputTrack *outputTrack = new OutputTrack((ThreadBase *)thread, 2918 this, 2919 mSampleRate, 2920 mFormat, 2921 mChannelMask, 2922 frameCount); 2923 if (outputTrack->cblk() != NULL) { 2924 thread->setStreamVolume(AUDIO_STREAM_CNT, 1.0f); 2925 mOutputTracks.add(outputTrack); 2926 LOGV("addOutputTrack() track %p, on thread %p", outputTrack, thread); 2927 updateWaitTime(); 2928 } 2929} 2930 2931void AudioFlinger::DuplicatingThread::removeOutputTrack(MixerThread *thread) 2932{ 2933 Mutex::Autolock _l(mLock); 2934 for (size_t i = 0; i < mOutputTracks.size(); i++) { 2935 if (mOutputTracks[i]->thread() == (ThreadBase *)thread) { 2936 mOutputTracks[i]->destroy(); 2937 mOutputTracks.removeAt(i); 2938 updateWaitTime(); 2939 return; 2940 } 2941 } 2942 LOGV("removeOutputTrack(): unkonwn thread: %p", thread); 2943} 2944 2945void AudioFlinger::DuplicatingThread::updateWaitTime() 2946{ 2947 mWaitTimeMs = UINT_MAX; 2948 for (size_t i = 0; i < mOutputTracks.size(); i++) { 2949 sp<ThreadBase> strong = mOutputTracks[i]->thread().promote(); 2950 if (strong != NULL) { 2951 uint32_t waitTimeMs = (strong->frameCount() * 2 * 1000) / strong->sampleRate(); 2952 if (waitTimeMs < mWaitTimeMs) { 2953 mWaitTimeMs = waitTimeMs; 2954 } 2955 } 2956 } 2957} 2958 2959 2960bool AudioFlinger::DuplicatingThread::outputsReady(SortedVector< sp<OutputTrack> > &outputTracks) 2961{ 2962 for (size_t i = 0; i < outputTracks.size(); i++) { 2963 sp <ThreadBase> thread = outputTracks[i]->thread().promote(); 2964 if (thread == 0) { 2965 LOGW("DuplicatingThread::outputsReady() could not promote thread on output track %p", outputTracks[i].get()); 2966 return false; 2967 } 2968 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 2969 if (playbackThread->standby() && !playbackThread->isSuspended()) { 2970 LOGV("DuplicatingThread output track %p on thread %p Not Ready", outputTracks[i].get(), thread.get()); 2971 return false; 2972 } 2973 } 2974 return true; 2975} 2976 2977uint32_t AudioFlinger::DuplicatingThread::activeSleepTimeUs() 2978{ 2979 return (mWaitTimeMs * 1000) / 2; 2980} 2981 2982// ---------------------------------------------------------------------------- 2983 2984// TrackBase constructor must be called with AudioFlinger::mLock held 2985AudioFlinger::ThreadBase::TrackBase::TrackBase( 2986 const wp<ThreadBase>& thread, 2987 const sp<Client>& client, 2988 uint32_t sampleRate, 2989 uint32_t format, 2990 uint32_t channelMask, 2991 int frameCount, 2992 uint32_t flags, 2993 const sp<IMemory>& sharedBuffer, 2994 int sessionId) 2995 : RefBase(), 2996 mThread(thread), 2997 mClient(client), 2998 mCblk(0), 2999 mFrameCount(0), 3000 mState(IDLE), 3001 mClientTid(-1), 3002 mFormat(format), 3003 mFlags(flags & ~SYSTEM_FLAGS_MASK), 3004 mSessionId(sessionId) 3005{ 3006 LOGV_IF(sharedBuffer != 0, "sharedBuffer: %p, size: %d", sharedBuffer->pointer(), sharedBuffer->size()); 3007 3008 // LOGD("Creating track with %d buffers @ %d bytes", bufferCount, bufferSize); 3009 size_t size = sizeof(audio_track_cblk_t); 3010 uint8_t channelCount = popcount(channelMask); 3011 size_t bufferSize = frameCount*channelCount*sizeof(int16_t); 3012 if (sharedBuffer == 0) { 3013 size += bufferSize; 3014 } 3015 3016 if (client != NULL) { 3017 mCblkMemory = client->heap()->allocate(size); 3018 if (mCblkMemory != 0) { 3019 mCblk = static_cast<audio_track_cblk_t *>(mCblkMemory->pointer()); 3020 if (mCblk) { // construct the shared structure in-place. 3021 new(mCblk) audio_track_cblk_t(); 3022 // clear all buffers 3023 mCblk->frameCount = frameCount; 3024 mCblk->sampleRate = sampleRate; 3025 mChannelCount = channelCount; 3026 mChannelMask = channelMask; 3027 if (sharedBuffer == 0) { 3028 mBuffer = (char*)mCblk + sizeof(audio_track_cblk_t); 3029 memset(mBuffer, 0, frameCount*channelCount*sizeof(int16_t)); 3030 // Force underrun condition to avoid false underrun callback until first data is 3031 // written to buffer (other flags are cleared) 3032 mCblk->flags = CBLK_UNDERRUN_ON; 3033 } else { 3034 mBuffer = sharedBuffer->pointer(); 3035 } 3036 mBufferEnd = (uint8_t *)mBuffer + bufferSize; 3037 } 3038 } else { 3039 LOGE("not enough memory for AudioTrack size=%u", size); 3040 client->heap()->dump("AudioTrack"); 3041 return; 3042 } 3043 } else { 3044 mCblk = (audio_track_cblk_t *)(new uint8_t[size]); 3045 if (mCblk) { // construct the shared structure in-place. 3046 new(mCblk) audio_track_cblk_t(); 3047 // clear all buffers 3048 mCblk->frameCount = frameCount; 3049 mCblk->sampleRate = sampleRate; 3050 mChannelCount = channelCount; 3051 mChannelMask = channelMask; 3052 mBuffer = (char*)mCblk + sizeof(audio_track_cblk_t); 3053 memset(mBuffer, 0, frameCount*channelCount*sizeof(int16_t)); 3054 // Force underrun condition to avoid false underrun callback until first data is 3055 // written to buffer (other flags are cleared) 3056 mCblk->flags = CBLK_UNDERRUN_ON; 3057 mBufferEnd = (uint8_t *)mBuffer + bufferSize; 3058 } 3059 } 3060} 3061 3062AudioFlinger::ThreadBase::TrackBase::~TrackBase() 3063{ 3064 if (mCblk) { 3065 mCblk->~audio_track_cblk_t(); // destroy our shared-structure. 3066 if (mClient == NULL) { 3067 delete mCblk; 3068 } 3069 } 3070 mCblkMemory.clear(); // and free the shared memory 3071 if (mClient != NULL) { 3072 Mutex::Autolock _l(mClient->audioFlinger()->mLock); 3073 mClient.clear(); 3074 } 3075} 3076 3077void AudioFlinger::ThreadBase::TrackBase::releaseBuffer(AudioBufferProvider::Buffer* buffer) 3078{ 3079 buffer->raw = 0; 3080 mFrameCount = buffer->frameCount; 3081 step(); 3082 buffer->frameCount = 0; 3083} 3084 3085bool AudioFlinger::ThreadBase::TrackBase::step() { 3086 bool result; 3087 audio_track_cblk_t* cblk = this->cblk(); 3088 3089 result = cblk->stepServer(mFrameCount); 3090 if (!result) { 3091 LOGV("stepServer failed acquiring cblk mutex"); 3092 mFlags |= STEPSERVER_FAILED; 3093 } 3094 return result; 3095} 3096 3097void AudioFlinger::ThreadBase::TrackBase::reset() { 3098 audio_track_cblk_t* cblk = this->cblk(); 3099 3100 cblk->user = 0; 3101 cblk->server = 0; 3102 cblk->userBase = 0; 3103 cblk->serverBase = 0; 3104 mFlags &= (uint32_t)(~SYSTEM_FLAGS_MASK); 3105 LOGV("TrackBase::reset"); 3106} 3107 3108sp<IMemory> AudioFlinger::ThreadBase::TrackBase::getCblk() const 3109{ 3110 return mCblkMemory; 3111} 3112 3113int AudioFlinger::ThreadBase::TrackBase::sampleRate() const { 3114 return (int)mCblk->sampleRate; 3115} 3116 3117int AudioFlinger::ThreadBase::TrackBase::channelCount() const { 3118 return (const int)mChannelCount; 3119} 3120 3121uint32_t AudioFlinger::ThreadBase::TrackBase::channelMask() const { 3122 return mChannelMask; 3123} 3124 3125void* AudioFlinger::ThreadBase::TrackBase::getBuffer(uint32_t offset, uint32_t frames) const { 3126 audio_track_cblk_t* cblk = this->cblk(); 3127 int8_t *bufferStart = (int8_t *)mBuffer + (offset-cblk->serverBase)*cblk->frameSize; 3128 int8_t *bufferEnd = bufferStart + frames * cblk->frameSize; 3129 3130 // Check validity of returned pointer in case the track control block would have been corrupted. 3131 if (bufferStart < mBuffer || bufferStart > bufferEnd || bufferEnd > mBufferEnd || 3132 ((unsigned long)bufferStart & (unsigned long)(cblk->frameSize - 1))) { 3133 LOGE("TrackBase::getBuffer buffer out of range:\n start: %p, end %p , mBuffer %p mBufferEnd %p\n \ 3134 server %d, serverBase %d, user %d, userBase %d", 3135 bufferStart, bufferEnd, mBuffer, mBufferEnd, 3136 cblk->server, cblk->serverBase, cblk->user, cblk->userBase); 3137 return 0; 3138 } 3139 3140 return bufferStart; 3141} 3142 3143// ---------------------------------------------------------------------------- 3144 3145// Track constructor must be called with AudioFlinger::mLock and ThreadBase::mLock held 3146AudioFlinger::PlaybackThread::Track::Track( 3147 const wp<ThreadBase>& thread, 3148 const sp<Client>& client, 3149 int streamType, 3150 uint32_t sampleRate, 3151 uint32_t format, 3152 uint32_t channelMask, 3153 int frameCount, 3154 const sp<IMemory>& sharedBuffer, 3155 int sessionId) 3156 : TrackBase(thread, client, sampleRate, format, channelMask, frameCount, 0, sharedBuffer, sessionId), 3157 mMute(false), mSharedBuffer(sharedBuffer), mName(-1), mMainBuffer(NULL), mAuxBuffer(NULL), 3158 mAuxEffectId(0), mHasVolumeController(false) 3159{ 3160 if (mCblk != NULL) { 3161 sp<ThreadBase> baseThread = thread.promote(); 3162 if (baseThread != 0) { 3163 PlaybackThread *playbackThread = (PlaybackThread *)baseThread.get(); 3164 mName = playbackThread->getTrackName_l(); 3165 mMainBuffer = playbackThread->mixBuffer(); 3166 } 3167 LOGV("Track constructor name %d, calling thread %d", mName, IPCThreadState::self()->getCallingPid()); 3168 if (mName < 0) { 3169 LOGE("no more track names available"); 3170 } 3171 mVolume[0] = 1.0f; 3172 mVolume[1] = 1.0f; 3173 mStreamType = streamType; 3174 // NOTE: audio_track_cblk_t::frameSize for 8 bit PCM data is based on a sample size of 3175 // 16 bit because data is converted to 16 bit before being stored in buffer by AudioTrack 3176 mCblk->frameSize = audio_is_linear_pcm(format) ? mChannelCount * sizeof(int16_t) : sizeof(uint8_t); 3177 } 3178} 3179 3180AudioFlinger::PlaybackThread::Track::~Track() 3181{ 3182 LOGV("PlaybackThread::Track destructor"); 3183 sp<ThreadBase> thread = mThread.promote(); 3184 if (thread != 0) { 3185 Mutex::Autolock _l(thread->mLock); 3186 mState = TERMINATED; 3187 } 3188} 3189 3190void AudioFlinger::PlaybackThread::Track::destroy() 3191{ 3192 // NOTE: destroyTrack_l() can remove a strong reference to this Track 3193 // by removing it from mTracks vector, so there is a risk that this Tracks's 3194 // desctructor is called. As the destructor needs to lock mLock, 3195 // we must acquire a strong reference on this Track before locking mLock 3196 // here so that the destructor is called only when exiting this function. 3197 // On the other hand, as long as Track::destroy() is only called by 3198 // TrackHandle destructor, the TrackHandle still holds a strong ref on 3199 // this Track with its member mTrack. 3200 sp<Track> keep(this); 3201 { // scope for mLock 3202 sp<ThreadBase> thread = mThread.promote(); 3203 if (thread != 0) { 3204 if (!isOutputTrack()) { 3205 if (mState == ACTIVE || mState == RESUMING) { 3206 AudioSystem::stopOutput(thread->id(), 3207 (audio_stream_type_t)mStreamType, 3208 mSessionId); 3209 3210 // to track the speaker usage 3211 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop); 3212 } 3213 AudioSystem::releaseOutput(thread->id()); 3214 } 3215 Mutex::Autolock _l(thread->mLock); 3216 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3217 playbackThread->destroyTrack_l(this); 3218 } 3219 } 3220} 3221 3222void AudioFlinger::PlaybackThread::Track::dump(char* buffer, size_t size) 3223{ 3224 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", 3225 mName - AudioMixer::TRACK0, 3226 (mClient == NULL) ? getpid() : mClient->pid(), 3227 mStreamType, 3228 mFormat, 3229 mChannelMask, 3230 mSessionId, 3231 mFrameCount, 3232 mState, 3233 mMute, 3234 mFillingUpStatus, 3235 mCblk->sampleRate, 3236 mCblk->volume[0], 3237 mCblk->volume[1], 3238 mCblk->server, 3239 mCblk->user, 3240 (int)mMainBuffer, 3241 (int)mAuxBuffer); 3242} 3243 3244status_t AudioFlinger::PlaybackThread::Track::getNextBuffer(AudioBufferProvider::Buffer* buffer) 3245{ 3246 audio_track_cblk_t* cblk = this->cblk(); 3247 uint32_t framesReady; 3248 uint32_t framesReq = buffer->frameCount; 3249 3250 // Check if last stepServer failed, try to step now 3251 if (mFlags & TrackBase::STEPSERVER_FAILED) { 3252 if (!step()) goto getNextBuffer_exit; 3253 LOGV("stepServer recovered"); 3254 mFlags &= ~TrackBase::STEPSERVER_FAILED; 3255 } 3256 3257 framesReady = cblk->framesReady(); 3258 3259 if (LIKELY(framesReady)) { 3260 uint32_t s = cblk->server; 3261 uint32_t bufferEnd = cblk->serverBase + cblk->frameCount; 3262 3263 bufferEnd = (cblk->loopEnd < bufferEnd) ? cblk->loopEnd : bufferEnd; 3264 if (framesReq > framesReady) { 3265 framesReq = framesReady; 3266 } 3267 if (s + framesReq > bufferEnd) { 3268 framesReq = bufferEnd - s; 3269 } 3270 3271 buffer->raw = getBuffer(s, framesReq); 3272 if (buffer->raw == 0) goto getNextBuffer_exit; 3273 3274 buffer->frameCount = framesReq; 3275 return NO_ERROR; 3276 } 3277 3278getNextBuffer_exit: 3279 buffer->raw = 0; 3280 buffer->frameCount = 0; 3281 LOGV("getNextBuffer() no more data for track %d on thread %p", mName, mThread.unsafe_get()); 3282 return NOT_ENOUGH_DATA; 3283} 3284 3285bool AudioFlinger::PlaybackThread::Track::isReady() const { 3286 if (mFillingUpStatus != FS_FILLING || isStopped() || isPausing()) return true; 3287 3288 if (mCblk->framesReady() >= mCblk->frameCount || 3289 (mCblk->flags & CBLK_FORCEREADY_MSK)) { 3290 mFillingUpStatus = FS_FILLED; 3291 android_atomic_and(~CBLK_FORCEREADY_MSK, &mCblk->flags); 3292 return true; 3293 } 3294 return false; 3295} 3296 3297status_t AudioFlinger::PlaybackThread::Track::start() 3298{ 3299 status_t status = NO_ERROR; 3300 LOGV("start(%d), calling thread %d session %d", 3301 mName, IPCThreadState::self()->getCallingPid(), mSessionId); 3302 sp<ThreadBase> thread = mThread.promote(); 3303 if (thread != 0) { 3304 Mutex::Autolock _l(thread->mLock); 3305 int state = mState; 3306 // here the track could be either new, or restarted 3307 // in both cases "unstop" the track 3308 if (mState == PAUSED) { 3309 mState = TrackBase::RESUMING; 3310 LOGV("PAUSED => RESUMING (%d) on thread %p", mName, this); 3311 } else { 3312 mState = TrackBase::ACTIVE; 3313 LOGV("? => ACTIVE (%d) on thread %p", mName, this); 3314 } 3315 3316 if (!isOutputTrack() && state != ACTIVE && state != RESUMING) { 3317 thread->mLock.unlock(); 3318 status = AudioSystem::startOutput(thread->id(), 3319 (audio_stream_type_t)mStreamType, 3320 mSessionId); 3321 thread->mLock.lock(); 3322 3323 // to track the speaker usage 3324 if (status == NO_ERROR) { 3325 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStart); 3326 } 3327 } 3328 if (status == NO_ERROR) { 3329 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3330 playbackThread->addTrack_l(this); 3331 } else { 3332 mState = state; 3333 } 3334 } else { 3335 status = BAD_VALUE; 3336 } 3337 return status; 3338} 3339 3340void AudioFlinger::PlaybackThread::Track::stop() 3341{ 3342 LOGV("stop(%d), calling thread %d", mName, IPCThreadState::self()->getCallingPid()); 3343 sp<ThreadBase> thread = mThread.promote(); 3344 if (thread != 0) { 3345 Mutex::Autolock _l(thread->mLock); 3346 int state = mState; 3347 if (mState > STOPPED) { 3348 mState = STOPPED; 3349 // If the track is not active (PAUSED and buffers full), flush buffers 3350 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3351 if (playbackThread->mActiveTracks.indexOf(this) < 0) { 3352 reset(); 3353 } 3354 LOGV("(> STOPPED) => STOPPED (%d) on thread %p", mName, playbackThread); 3355 } 3356 if (!isOutputTrack() && (state == ACTIVE || state == RESUMING)) { 3357 thread->mLock.unlock(); 3358 AudioSystem::stopOutput(thread->id(), 3359 (audio_stream_type_t)mStreamType, 3360 mSessionId); 3361 thread->mLock.lock(); 3362 3363 // to track the speaker usage 3364 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop); 3365 } 3366 } 3367} 3368 3369void AudioFlinger::PlaybackThread::Track::pause() 3370{ 3371 LOGV("pause(%d), calling thread %d", mName, IPCThreadState::self()->getCallingPid()); 3372 sp<ThreadBase> thread = mThread.promote(); 3373 if (thread != 0) { 3374 Mutex::Autolock _l(thread->mLock); 3375 if (mState == ACTIVE || mState == RESUMING) { 3376 mState = PAUSING; 3377 LOGV("ACTIVE/RESUMING => PAUSING (%d) on thread %p", mName, thread.get()); 3378 if (!isOutputTrack()) { 3379 thread->mLock.unlock(); 3380 AudioSystem::stopOutput(thread->id(), 3381 (audio_stream_type_t)mStreamType, 3382 mSessionId); 3383 thread->mLock.lock(); 3384 3385 // to track the speaker usage 3386 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop); 3387 } 3388 } 3389 } 3390} 3391 3392void AudioFlinger::PlaybackThread::Track::flush() 3393{ 3394 LOGV("flush(%d)", mName); 3395 sp<ThreadBase> thread = mThread.promote(); 3396 if (thread != 0) { 3397 Mutex::Autolock _l(thread->mLock); 3398 if (mState != STOPPED && mState != PAUSED && mState != PAUSING) { 3399 return; 3400 } 3401 // No point remaining in PAUSED state after a flush => go to 3402 // STOPPED state 3403 mState = STOPPED; 3404 3405 // do not reset the track if it is still in the process of being stopped or paused. 3406 // this will be done by prepareTracks_l() when the track is stopped. 3407 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3408 if (playbackThread->mActiveTracks.indexOf(this) < 0) { 3409 reset(); 3410 } 3411 } 3412} 3413 3414void AudioFlinger::PlaybackThread::Track::reset() 3415{ 3416 // Do not reset twice to avoid discarding data written just after a flush and before 3417 // the audioflinger thread detects the track is stopped. 3418 if (!mResetDone) { 3419 TrackBase::reset(); 3420 // Force underrun condition to avoid false underrun callback until first data is 3421 // written to buffer 3422 android_atomic_and(~CBLK_FORCEREADY_MSK, &mCblk->flags); 3423 android_atomic_or(CBLK_UNDERRUN_ON, &mCblk->flags); 3424 mFillingUpStatus = FS_FILLING; 3425 mResetDone = true; 3426 } 3427} 3428 3429void AudioFlinger::PlaybackThread::Track::mute(bool muted) 3430{ 3431 mMute = muted; 3432} 3433 3434void AudioFlinger::PlaybackThread::Track::setVolume(float left, float right) 3435{ 3436 mVolume[0] = left; 3437 mVolume[1] = right; 3438} 3439 3440status_t AudioFlinger::PlaybackThread::Track::attachAuxEffect(int EffectId) 3441{ 3442 status_t status = DEAD_OBJECT; 3443 sp<ThreadBase> thread = mThread.promote(); 3444 if (thread != 0) { 3445 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3446 status = playbackThread->attachAuxEffect(this, EffectId); 3447 } 3448 return status; 3449} 3450 3451void AudioFlinger::PlaybackThread::Track::setAuxBuffer(int EffectId, int32_t *buffer) 3452{ 3453 mAuxEffectId = EffectId; 3454 mAuxBuffer = buffer; 3455} 3456 3457// ---------------------------------------------------------------------------- 3458 3459// RecordTrack constructor must be called with AudioFlinger::mLock held 3460AudioFlinger::RecordThread::RecordTrack::RecordTrack( 3461 const wp<ThreadBase>& thread, 3462 const sp<Client>& client, 3463 uint32_t sampleRate, 3464 uint32_t format, 3465 uint32_t channelMask, 3466 int frameCount, 3467 uint32_t flags, 3468 int sessionId) 3469 : TrackBase(thread, client, sampleRate, format, 3470 channelMask, frameCount, flags, 0, sessionId), 3471 mOverflow(false) 3472{ 3473 if (mCblk != NULL) { 3474 LOGV("RecordTrack constructor, size %d", (int)mBufferEnd - (int)mBuffer); 3475 if (format == AUDIO_FORMAT_PCM_16_BIT) { 3476 mCblk->frameSize = mChannelCount * sizeof(int16_t); 3477 } else if (format == AUDIO_FORMAT_PCM_8_BIT) { 3478 mCblk->frameSize = mChannelCount * sizeof(int8_t); 3479 } else { 3480 mCblk->frameSize = sizeof(int8_t); 3481 } 3482 } 3483} 3484 3485AudioFlinger::RecordThread::RecordTrack::~RecordTrack() 3486{ 3487 sp<ThreadBase> thread = mThread.promote(); 3488 if (thread != 0) { 3489 AudioSystem::releaseInput(thread->id()); 3490 } 3491} 3492 3493status_t AudioFlinger::RecordThread::RecordTrack::getNextBuffer(AudioBufferProvider::Buffer* buffer) 3494{ 3495 audio_track_cblk_t* cblk = this->cblk(); 3496 uint32_t framesAvail; 3497 uint32_t framesReq = buffer->frameCount; 3498 3499 // Check if last stepServer failed, try to step now 3500 if (mFlags & TrackBase::STEPSERVER_FAILED) { 3501 if (!step()) goto getNextBuffer_exit; 3502 LOGV("stepServer recovered"); 3503 mFlags &= ~TrackBase::STEPSERVER_FAILED; 3504 } 3505 3506 framesAvail = cblk->framesAvailable_l(); 3507 3508 if (LIKELY(framesAvail)) { 3509 uint32_t s = cblk->server; 3510 uint32_t bufferEnd = cblk->serverBase + cblk->frameCount; 3511 3512 if (framesReq > framesAvail) { 3513 framesReq = framesAvail; 3514 } 3515 if (s + framesReq > bufferEnd) { 3516 framesReq = bufferEnd - s; 3517 } 3518 3519 buffer->raw = getBuffer(s, framesReq); 3520 if (buffer->raw == 0) goto getNextBuffer_exit; 3521 3522 buffer->frameCount = framesReq; 3523 return NO_ERROR; 3524 } 3525 3526getNextBuffer_exit: 3527 buffer->raw = 0; 3528 buffer->frameCount = 0; 3529 return NOT_ENOUGH_DATA; 3530} 3531 3532status_t AudioFlinger::RecordThread::RecordTrack::start() 3533{ 3534 sp<ThreadBase> thread = mThread.promote(); 3535 if (thread != 0) { 3536 RecordThread *recordThread = (RecordThread *)thread.get(); 3537 return recordThread->start(this); 3538 } else { 3539 return BAD_VALUE; 3540 } 3541} 3542 3543void AudioFlinger::RecordThread::RecordTrack::stop() 3544{ 3545 sp<ThreadBase> thread = mThread.promote(); 3546 if (thread != 0) { 3547 RecordThread *recordThread = (RecordThread *)thread.get(); 3548 recordThread->stop(this); 3549 TrackBase::reset(); 3550 // Force overerrun condition to avoid false overrun callback until first data is 3551 // read from buffer 3552 android_atomic_or(CBLK_UNDERRUN_ON, &mCblk->flags); 3553 } 3554} 3555 3556void AudioFlinger::RecordThread::RecordTrack::dump(char* buffer, size_t size) 3557{ 3558 snprintf(buffer, size, " %05d %03u 0x%08x %05d %04u %01d %05u %08x %08x\n", 3559 (mClient == NULL) ? getpid() : mClient->pid(), 3560 mFormat, 3561 mChannelMask, 3562 mSessionId, 3563 mFrameCount, 3564 mState, 3565 mCblk->sampleRate, 3566 mCblk->server, 3567 mCblk->user); 3568} 3569 3570 3571// ---------------------------------------------------------------------------- 3572 3573AudioFlinger::PlaybackThread::OutputTrack::OutputTrack( 3574 const wp<ThreadBase>& thread, 3575 DuplicatingThread *sourceThread, 3576 uint32_t sampleRate, 3577 uint32_t format, 3578 uint32_t channelMask, 3579 int frameCount) 3580 : Track(thread, NULL, AUDIO_STREAM_CNT, sampleRate, format, channelMask, frameCount, NULL, 0), 3581 mActive(false), mSourceThread(sourceThread) 3582{ 3583 3584 PlaybackThread *playbackThread = (PlaybackThread *)thread.unsafe_get(); 3585 if (mCblk != NULL) { 3586 mCblk->flags |= CBLK_DIRECTION_OUT; 3587 mCblk->buffers = (char*)mCblk + sizeof(audio_track_cblk_t); 3588 mCblk->volume[0] = mCblk->volume[1] = 0x1000; 3589 mOutBuffer.frameCount = 0; 3590 playbackThread->mTracks.add(this); 3591 LOGV("OutputTrack constructor mCblk %p, mBuffer %p, mCblk->buffers %p, " \ 3592 "mCblk->frameCount %d, mCblk->sampleRate %d, mChannelMask 0x%08x mBufferEnd %p", 3593 mCblk, mBuffer, mCblk->buffers, 3594 mCblk->frameCount, mCblk->sampleRate, mChannelMask, mBufferEnd); 3595 } else { 3596 LOGW("Error creating output track on thread %p", playbackThread); 3597 } 3598} 3599 3600AudioFlinger::PlaybackThread::OutputTrack::~OutputTrack() 3601{ 3602 clearBufferQueue(); 3603} 3604 3605status_t AudioFlinger::PlaybackThread::OutputTrack::start() 3606{ 3607 status_t status = Track::start(); 3608 if (status != NO_ERROR) { 3609 return status; 3610 } 3611 3612 mActive = true; 3613 mRetryCount = 127; 3614 return status; 3615} 3616 3617void AudioFlinger::PlaybackThread::OutputTrack::stop() 3618{ 3619 Track::stop(); 3620 clearBufferQueue(); 3621 mOutBuffer.frameCount = 0; 3622 mActive = false; 3623} 3624 3625bool AudioFlinger::PlaybackThread::OutputTrack::write(int16_t* data, uint32_t frames) 3626{ 3627 Buffer *pInBuffer; 3628 Buffer inBuffer; 3629 uint32_t channelCount = mChannelCount; 3630 bool outputBufferFull = false; 3631 inBuffer.frameCount = frames; 3632 inBuffer.i16 = data; 3633 3634 uint32_t waitTimeLeftMs = mSourceThread->waitTimeMs(); 3635 3636 if (!mActive && frames != 0) { 3637 start(); 3638 sp<ThreadBase> thread = mThread.promote(); 3639 if (thread != 0) { 3640 MixerThread *mixerThread = (MixerThread *)thread.get(); 3641 if (mCblk->frameCount > frames){ 3642 if (mBufferQueue.size() < kMaxOverFlowBuffers) { 3643 uint32_t startFrames = (mCblk->frameCount - frames); 3644 pInBuffer = new Buffer; 3645 pInBuffer->mBuffer = new int16_t[startFrames * channelCount]; 3646 pInBuffer->frameCount = startFrames; 3647 pInBuffer->i16 = pInBuffer->mBuffer; 3648 memset(pInBuffer->raw, 0, startFrames * channelCount * sizeof(int16_t)); 3649 mBufferQueue.add(pInBuffer); 3650 } else { 3651 LOGW ("OutputTrack::write() %p no more buffers in queue", this); 3652 } 3653 } 3654 } 3655 } 3656 3657 while (waitTimeLeftMs) { 3658 // First write pending buffers, then new data 3659 if (mBufferQueue.size()) { 3660 pInBuffer = mBufferQueue.itemAt(0); 3661 } else { 3662 pInBuffer = &inBuffer; 3663 } 3664 3665 if (pInBuffer->frameCount == 0) { 3666 break; 3667 } 3668 3669 if (mOutBuffer.frameCount == 0) { 3670 mOutBuffer.frameCount = pInBuffer->frameCount; 3671 nsecs_t startTime = systemTime(); 3672 if (obtainBuffer(&mOutBuffer, waitTimeLeftMs) == (status_t)AudioTrack::NO_MORE_BUFFERS) { 3673 LOGV ("OutputTrack::write() %p thread %p no more output buffers", this, mThread.unsafe_get()); 3674 outputBufferFull = true; 3675 break; 3676 } 3677 uint32_t waitTimeMs = (uint32_t)ns2ms(systemTime() - startTime); 3678 if (waitTimeLeftMs >= waitTimeMs) { 3679 waitTimeLeftMs -= waitTimeMs; 3680 } else { 3681 waitTimeLeftMs = 0; 3682 } 3683 } 3684 3685 uint32_t outFrames = pInBuffer->frameCount > mOutBuffer.frameCount ? mOutBuffer.frameCount : pInBuffer->frameCount; 3686 memcpy(mOutBuffer.raw, pInBuffer->raw, outFrames * channelCount * sizeof(int16_t)); 3687 mCblk->stepUser(outFrames); 3688 pInBuffer->frameCount -= outFrames; 3689 pInBuffer->i16 += outFrames * channelCount; 3690 mOutBuffer.frameCount -= outFrames; 3691 mOutBuffer.i16 += outFrames * channelCount; 3692 3693 if (pInBuffer->frameCount == 0) { 3694 if (mBufferQueue.size()) { 3695 mBufferQueue.removeAt(0); 3696 delete [] pInBuffer->mBuffer; 3697 delete pInBuffer; 3698 LOGV("OutputTrack::write() %p thread %p released overflow buffer %d", this, mThread.unsafe_get(), mBufferQueue.size()); 3699 } else { 3700 break; 3701 } 3702 } 3703 } 3704 3705 // If we could not write all frames, allocate a buffer and queue it for next time. 3706 if (inBuffer.frameCount) { 3707 sp<ThreadBase> thread = mThread.promote(); 3708 if (thread != 0 && !thread->standby()) { 3709 if (mBufferQueue.size() < kMaxOverFlowBuffers) { 3710 pInBuffer = new Buffer; 3711 pInBuffer->mBuffer = new int16_t[inBuffer.frameCount * channelCount]; 3712 pInBuffer->frameCount = inBuffer.frameCount; 3713 pInBuffer->i16 = pInBuffer->mBuffer; 3714 memcpy(pInBuffer->raw, inBuffer.raw, inBuffer.frameCount * channelCount * sizeof(int16_t)); 3715 mBufferQueue.add(pInBuffer); 3716 LOGV("OutputTrack::write() %p thread %p adding overflow buffer %d", this, mThread.unsafe_get(), mBufferQueue.size()); 3717 } else { 3718 LOGW("OutputTrack::write() %p thread %p no more overflow buffers", mThread.unsafe_get(), this); 3719 } 3720 } 3721 } 3722 3723 // Calling write() with a 0 length buffer, means that no more data will be written: 3724 // If no more buffers are pending, fill output track buffer to make sure it is started 3725 // by output mixer. 3726 if (frames == 0 && mBufferQueue.size() == 0) { 3727 if (mCblk->user < mCblk->frameCount) { 3728 frames = mCblk->frameCount - mCblk->user; 3729 pInBuffer = new Buffer; 3730 pInBuffer->mBuffer = new int16_t[frames * channelCount]; 3731 pInBuffer->frameCount = frames; 3732 pInBuffer->i16 = pInBuffer->mBuffer; 3733 memset(pInBuffer->raw, 0, frames * channelCount * sizeof(int16_t)); 3734 mBufferQueue.add(pInBuffer); 3735 } else if (mActive) { 3736 stop(); 3737 } 3738 } 3739 3740 return outputBufferFull; 3741} 3742 3743status_t AudioFlinger::PlaybackThread::OutputTrack::obtainBuffer(AudioBufferProvider::Buffer* buffer, uint32_t waitTimeMs) 3744{ 3745 int active; 3746 status_t result; 3747 audio_track_cblk_t* cblk = mCblk; 3748 uint32_t framesReq = buffer->frameCount; 3749 3750// LOGV("OutputTrack::obtainBuffer user %d, server %d", cblk->user, cblk->server); 3751 buffer->frameCount = 0; 3752 3753 uint32_t framesAvail = cblk->framesAvailable(); 3754 3755 3756 if (framesAvail == 0) { 3757 Mutex::Autolock _l(cblk->lock); 3758 goto start_loop_here; 3759 while (framesAvail == 0) { 3760 active = mActive; 3761 if (UNLIKELY(!active)) { 3762 LOGV("Not active and NO_MORE_BUFFERS"); 3763 return AudioTrack::NO_MORE_BUFFERS; 3764 } 3765 result = cblk->cv.waitRelative(cblk->lock, milliseconds(waitTimeMs)); 3766 if (result != NO_ERROR) { 3767 return AudioTrack::NO_MORE_BUFFERS; 3768 } 3769 // read the server count again 3770 start_loop_here: 3771 framesAvail = cblk->framesAvailable_l(); 3772 } 3773 } 3774 3775// if (framesAvail < framesReq) { 3776// return AudioTrack::NO_MORE_BUFFERS; 3777// } 3778 3779 if (framesReq > framesAvail) { 3780 framesReq = framesAvail; 3781 } 3782 3783 uint32_t u = cblk->user; 3784 uint32_t bufferEnd = cblk->userBase + cblk->frameCount; 3785 3786 if (u + framesReq > bufferEnd) { 3787 framesReq = bufferEnd - u; 3788 } 3789 3790 buffer->frameCount = framesReq; 3791 buffer->raw = (void *)cblk->buffer(u); 3792 return NO_ERROR; 3793} 3794 3795 3796void AudioFlinger::PlaybackThread::OutputTrack::clearBufferQueue() 3797{ 3798 size_t size = mBufferQueue.size(); 3799 Buffer *pBuffer; 3800 3801 for (size_t i = 0; i < size; i++) { 3802 pBuffer = mBufferQueue.itemAt(i); 3803 delete [] pBuffer->mBuffer; 3804 delete pBuffer; 3805 } 3806 mBufferQueue.clear(); 3807} 3808 3809// ---------------------------------------------------------------------------- 3810 3811AudioFlinger::Client::Client(const sp<AudioFlinger>& audioFlinger, pid_t pid) 3812 : RefBase(), 3813 mAudioFlinger(audioFlinger), 3814 mMemoryDealer(new MemoryDealer(1024*1024, "AudioFlinger::Client")), 3815 mPid(pid) 3816{ 3817 // 1 MB of address space is good for 32 tracks, 8 buffers each, 4 KB/buffer 3818} 3819 3820// Client destructor must be called with AudioFlinger::mLock held 3821AudioFlinger::Client::~Client() 3822{ 3823 mAudioFlinger->removeClient_l(mPid); 3824} 3825 3826const sp<MemoryDealer>& AudioFlinger::Client::heap() const 3827{ 3828 return mMemoryDealer; 3829} 3830 3831// ---------------------------------------------------------------------------- 3832 3833AudioFlinger::NotificationClient::NotificationClient(const sp<AudioFlinger>& audioFlinger, 3834 const sp<IAudioFlingerClient>& client, 3835 pid_t pid) 3836 : mAudioFlinger(audioFlinger), mPid(pid), mClient(client) 3837{ 3838} 3839 3840AudioFlinger::NotificationClient::~NotificationClient() 3841{ 3842 mClient.clear(); 3843} 3844 3845void AudioFlinger::NotificationClient::binderDied(const wp<IBinder>& who) 3846{ 3847 sp<NotificationClient> keep(this); 3848 { 3849 mAudioFlinger->removeNotificationClient(mPid); 3850 } 3851} 3852 3853// ---------------------------------------------------------------------------- 3854 3855AudioFlinger::TrackHandle::TrackHandle(const sp<AudioFlinger::PlaybackThread::Track>& track) 3856 : BnAudioTrack(), 3857 mTrack(track) 3858{ 3859} 3860 3861AudioFlinger::TrackHandle::~TrackHandle() { 3862 // just stop the track on deletion, associated resources 3863 // will be freed from the main thread once all pending buffers have 3864 // been played. Unless it's not in the active track list, in which 3865 // case we free everything now... 3866 mTrack->destroy(); 3867} 3868 3869status_t AudioFlinger::TrackHandle::start() { 3870 return mTrack->start(); 3871} 3872 3873void AudioFlinger::TrackHandle::stop() { 3874 mTrack->stop(); 3875} 3876 3877void AudioFlinger::TrackHandle::flush() { 3878 mTrack->flush(); 3879} 3880 3881void AudioFlinger::TrackHandle::mute(bool e) { 3882 mTrack->mute(e); 3883} 3884 3885void AudioFlinger::TrackHandle::pause() { 3886 mTrack->pause(); 3887} 3888 3889void AudioFlinger::TrackHandle::setVolume(float left, float right) { 3890 mTrack->setVolume(left, right); 3891} 3892 3893sp<IMemory> AudioFlinger::TrackHandle::getCblk() const { 3894 return mTrack->getCblk(); 3895} 3896 3897status_t AudioFlinger::TrackHandle::attachAuxEffect(int EffectId) 3898{ 3899 return mTrack->attachAuxEffect(EffectId); 3900} 3901 3902status_t AudioFlinger::TrackHandle::onTransact( 3903 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 3904{ 3905 return BnAudioTrack::onTransact(code, data, reply, flags); 3906} 3907 3908// ---------------------------------------------------------------------------- 3909 3910sp<IAudioRecord> AudioFlinger::openRecord( 3911 pid_t pid, 3912 int input, 3913 uint32_t sampleRate, 3914 uint32_t format, 3915 uint32_t channelMask, 3916 int frameCount, 3917 uint32_t flags, 3918 int *sessionId, 3919 status_t *status) 3920{ 3921 sp<RecordThread::RecordTrack> recordTrack; 3922 sp<RecordHandle> recordHandle; 3923 sp<Client> client; 3924 wp<Client> wclient; 3925 status_t lStatus; 3926 RecordThread *thread; 3927 size_t inFrameCount; 3928 int lSessionId; 3929 3930 // check calling permissions 3931 if (!recordingAllowed()) { 3932 lStatus = PERMISSION_DENIED; 3933 goto Exit; 3934 } 3935 3936 // add client to list 3937 { // scope for mLock 3938 Mutex::Autolock _l(mLock); 3939 thread = checkRecordThread_l(input); 3940 if (thread == NULL) { 3941 lStatus = BAD_VALUE; 3942 goto Exit; 3943 } 3944 3945 wclient = mClients.valueFor(pid); 3946 if (wclient != NULL) { 3947 client = wclient.promote(); 3948 } else { 3949 client = new Client(this, pid); 3950 mClients.add(pid, client); 3951 } 3952 3953 // If no audio session id is provided, create one here 3954 if (sessionId != NULL && *sessionId != AUDIO_SESSION_OUTPUT_MIX) { 3955 lSessionId = *sessionId; 3956 } else { 3957 lSessionId = nextUniqueId(); 3958 if (sessionId != NULL) { 3959 *sessionId = lSessionId; 3960 } 3961 } 3962 // create new record track. The record track uses one track in mHardwareMixerThread by convention. 3963 recordTrack = thread->createRecordTrack_l(client, 3964 sampleRate, 3965 format, 3966 channelMask, 3967 frameCount, 3968 flags, 3969 lSessionId, 3970 &lStatus); 3971 } 3972 if (lStatus != NO_ERROR) { 3973 // remove local strong reference to Client before deleting the RecordTrack so that the Client 3974 // destructor is called by the TrackBase destructor with mLock held 3975 client.clear(); 3976 recordTrack.clear(); 3977 goto Exit; 3978 } 3979 3980 // return to handle to client 3981 recordHandle = new RecordHandle(recordTrack); 3982 lStatus = NO_ERROR; 3983 3984Exit: 3985 if (status) { 3986 *status = lStatus; 3987 } 3988 return recordHandle; 3989} 3990 3991// ---------------------------------------------------------------------------- 3992 3993AudioFlinger::RecordHandle::RecordHandle(const sp<AudioFlinger::RecordThread::RecordTrack>& recordTrack) 3994 : BnAudioRecord(), 3995 mRecordTrack(recordTrack) 3996{ 3997} 3998 3999AudioFlinger::RecordHandle::~RecordHandle() { 4000 stop(); 4001} 4002 4003status_t AudioFlinger::RecordHandle::start() { 4004 LOGV("RecordHandle::start()"); 4005 return mRecordTrack->start(); 4006} 4007 4008void AudioFlinger::RecordHandle::stop() { 4009 LOGV("RecordHandle::stop()"); 4010 mRecordTrack->stop(); 4011} 4012 4013sp<IMemory> AudioFlinger::RecordHandle::getCblk() const { 4014 return mRecordTrack->getCblk(); 4015} 4016 4017status_t AudioFlinger::RecordHandle::onTransact( 4018 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 4019{ 4020 return BnAudioRecord::onTransact(code, data, reply, flags); 4021} 4022 4023// ---------------------------------------------------------------------------- 4024 4025AudioFlinger::RecordThread::RecordThread(const sp<AudioFlinger>& audioFlinger, 4026 AudioStreamIn *input, 4027 uint32_t sampleRate, 4028 uint32_t channels, 4029 int id, 4030 uint32_t device) : 4031 ThreadBase(audioFlinger, id, device), 4032 mInput(input), mTrack(NULL), mResampler(0), mRsmpOutBuffer(0), mRsmpInBuffer(0) 4033{ 4034 mType = ThreadBase::RECORD; 4035 4036 snprintf(mName, kNameLength, "AudioIn_%d", id); 4037 4038 mReqChannelCount = popcount(channels); 4039 mReqSampleRate = sampleRate; 4040 readInputParameters(); 4041} 4042 4043 4044AudioFlinger::RecordThread::~RecordThread() 4045{ 4046 delete[] mRsmpInBuffer; 4047 if (mResampler != 0) { 4048 delete mResampler; 4049 delete[] mRsmpOutBuffer; 4050 } 4051} 4052 4053void AudioFlinger::RecordThread::onFirstRef() 4054{ 4055 run(mName, PRIORITY_URGENT_AUDIO); 4056} 4057 4058bool AudioFlinger::RecordThread::threadLoop() 4059{ 4060 AudioBufferProvider::Buffer buffer; 4061 sp<RecordTrack> activeTrack; 4062 Vector< sp<EffectChain> > effectChains; 4063 4064 nsecs_t lastWarning = 0; 4065 4066 acquireWakeLock(); 4067 4068 // start recording 4069 while (!exitPending()) { 4070 4071 processConfigEvents(); 4072 4073 { // scope for mLock 4074 Mutex::Autolock _l(mLock); 4075 checkForNewParameters_l(); 4076 if (mActiveTrack == 0 && mConfigEvents.isEmpty()) { 4077 if (!mStandby) { 4078 mInput->stream->common.standby(&mInput->stream->common); 4079 mStandby = true; 4080 } 4081 4082 if (exitPending()) break; 4083 4084 releaseWakeLock_l(); 4085 LOGV("RecordThread: loop stopping"); 4086 // go to sleep 4087 mWaitWorkCV.wait(mLock); 4088 LOGV("RecordThread: loop starting"); 4089 acquireWakeLock_l(); 4090 continue; 4091 } 4092 if (mActiveTrack != 0) { 4093 if (mActiveTrack->mState == TrackBase::PAUSING) { 4094 if (!mStandby) { 4095 mInput->stream->common.standby(&mInput->stream->common); 4096 mStandby = true; 4097 } 4098 mActiveTrack.clear(); 4099 mStartStopCond.broadcast(); 4100 } else if (mActiveTrack->mState == TrackBase::RESUMING) { 4101 if (mReqChannelCount != mActiveTrack->channelCount()) { 4102 mActiveTrack.clear(); 4103 mStartStopCond.broadcast(); 4104 } else if (mBytesRead != 0) { 4105 // record start succeeds only if first read from audio input 4106 // succeeds 4107 if (mBytesRead > 0) { 4108 mActiveTrack->mState = TrackBase::ACTIVE; 4109 } else { 4110 mActiveTrack.clear(); 4111 } 4112 mStartStopCond.broadcast(); 4113 } 4114 mStandby = false; 4115 } 4116 } 4117 lockEffectChains_l(effectChains); 4118 } 4119 4120 if (mActiveTrack != 0) { 4121 if (mActiveTrack->mState != TrackBase::ACTIVE && 4122 mActiveTrack->mState != TrackBase::RESUMING) { 4123 unlockEffectChains(effectChains); 4124 usleep(kRecordThreadSleepUs); 4125 continue; 4126 } 4127 for (size_t i = 0; i < effectChains.size(); i ++) { 4128 effectChains[i]->process_l(); 4129 } 4130 4131 buffer.frameCount = mFrameCount; 4132 if (LIKELY(mActiveTrack->getNextBuffer(&buffer) == NO_ERROR)) { 4133 size_t framesOut = buffer.frameCount; 4134 if (mResampler == 0) { 4135 // no resampling 4136 while (framesOut) { 4137 size_t framesIn = mFrameCount - mRsmpInIndex; 4138 if (framesIn) { 4139 int8_t *src = (int8_t *)mRsmpInBuffer + mRsmpInIndex * mFrameSize; 4140 int8_t *dst = buffer.i8 + (buffer.frameCount - framesOut) * mActiveTrack->mCblk->frameSize; 4141 if (framesIn > framesOut) 4142 framesIn = framesOut; 4143 mRsmpInIndex += framesIn; 4144 framesOut -= framesIn; 4145 if ((int)mChannelCount == mReqChannelCount || 4146 mFormat != AUDIO_FORMAT_PCM_16_BIT) { 4147 memcpy(dst, src, framesIn * mFrameSize); 4148 } else { 4149 int16_t *src16 = (int16_t *)src; 4150 int16_t *dst16 = (int16_t *)dst; 4151 if (mChannelCount == 1) { 4152 while (framesIn--) { 4153 *dst16++ = *src16; 4154 *dst16++ = *src16++; 4155 } 4156 } else { 4157 while (framesIn--) { 4158 *dst16++ = (int16_t)(((int32_t)*src16 + (int32_t)*(src16 + 1)) >> 1); 4159 src16 += 2; 4160 } 4161 } 4162 } 4163 } 4164 if (framesOut && mFrameCount == mRsmpInIndex) { 4165 if (framesOut == mFrameCount && 4166 ((int)mChannelCount == mReqChannelCount || mFormat != AUDIO_FORMAT_PCM_16_BIT)) { 4167 mBytesRead = mInput->stream->read(mInput->stream, buffer.raw, mInputBytes); 4168 framesOut = 0; 4169 } else { 4170 mBytesRead = mInput->stream->read(mInput->stream, mRsmpInBuffer, mInputBytes); 4171 mRsmpInIndex = 0; 4172 } 4173 if (mBytesRead < 0) { 4174 LOGE("Error reading audio input"); 4175 if (mActiveTrack->mState == TrackBase::ACTIVE) { 4176 // Force input into standby so that it tries to 4177 // recover at next read attempt 4178 mInput->stream->common.standby(&mInput->stream->common); 4179 usleep(kRecordThreadSleepUs); 4180 } 4181 mRsmpInIndex = mFrameCount; 4182 framesOut = 0; 4183 buffer.frameCount = 0; 4184 } 4185 } 4186 } 4187 } else { 4188 // resampling 4189 4190 memset(mRsmpOutBuffer, 0, framesOut * 2 * sizeof(int32_t)); 4191 // alter output frame count as if we were expecting stereo samples 4192 if (mChannelCount == 1 && mReqChannelCount == 1) { 4193 framesOut >>= 1; 4194 } 4195 mResampler->resample(mRsmpOutBuffer, framesOut, this); 4196 // ditherAndClamp() works as long as all buffers returned by mActiveTrack->getNextBuffer() 4197 // are 32 bit aligned which should be always true. 4198 if (mChannelCount == 2 && mReqChannelCount == 1) { 4199 AudioMixer::ditherAndClamp(mRsmpOutBuffer, mRsmpOutBuffer, framesOut); 4200 // the resampler always outputs stereo samples: do post stereo to mono conversion 4201 int16_t *src = (int16_t *)mRsmpOutBuffer; 4202 int16_t *dst = buffer.i16; 4203 while (framesOut--) { 4204 *dst++ = (int16_t)(((int32_t)*src + (int32_t)*(src + 1)) >> 1); 4205 src += 2; 4206 } 4207 } else { 4208 AudioMixer::ditherAndClamp((int32_t *)buffer.raw, mRsmpOutBuffer, framesOut); 4209 } 4210 4211 } 4212 mActiveTrack->releaseBuffer(&buffer); 4213 mActiveTrack->overflow(); 4214 } 4215 // client isn't retrieving buffers fast enough 4216 else { 4217 if (!mActiveTrack->setOverflow()) { 4218 nsecs_t now = systemTime(); 4219 if ((now - lastWarning) > kWarningThrottle) { 4220 LOGW("RecordThread: buffer overflow"); 4221 lastWarning = now; 4222 } 4223 } 4224 // Release the processor for a while before asking for a new buffer. 4225 // This will give the application more chance to read from the buffer and 4226 // clear the overflow. 4227 usleep(kRecordThreadSleepUs); 4228 } 4229 } 4230 // enable changes in effect chain 4231 unlockEffectChains(effectChains); 4232 effectChains.clear(); 4233 } 4234 4235 if (!mStandby) { 4236 mInput->stream->common.standby(&mInput->stream->common); 4237 } 4238 mActiveTrack.clear(); 4239 4240 mStartStopCond.broadcast(); 4241 4242 releaseWakeLock(); 4243 4244 LOGV("RecordThread %p exiting", this); 4245 return false; 4246} 4247 4248 4249sp<AudioFlinger::RecordThread::RecordTrack> AudioFlinger::RecordThread::createRecordTrack_l( 4250 const sp<AudioFlinger::Client>& client, 4251 uint32_t sampleRate, 4252 int format, 4253 int channelMask, 4254 int frameCount, 4255 uint32_t flags, 4256 int sessionId, 4257 status_t *status) 4258{ 4259 sp<RecordTrack> track; 4260 status_t lStatus; 4261 4262 lStatus = initCheck(); 4263 if (lStatus != NO_ERROR) { 4264 LOGE("Audio driver not initialized."); 4265 goto Exit; 4266 } 4267 4268 { // scope for mLock 4269 Mutex::Autolock _l(mLock); 4270 4271 track = new RecordTrack(this, client, sampleRate, 4272 format, channelMask, frameCount, flags, sessionId); 4273 4274 if (track->getCblk() == NULL) { 4275 lStatus = NO_MEMORY; 4276 goto Exit; 4277 } 4278 4279 mTrack = track.get(); 4280 4281 } 4282 lStatus = NO_ERROR; 4283 4284Exit: 4285 if (status) { 4286 *status = lStatus; 4287 } 4288 return track; 4289} 4290 4291status_t AudioFlinger::RecordThread::start(RecordThread::RecordTrack* recordTrack) 4292{ 4293 LOGV("RecordThread::start"); 4294 sp <ThreadBase> strongMe = this; 4295 status_t status = NO_ERROR; 4296 { 4297 AutoMutex lock(&mLock); 4298 if (mActiveTrack != 0) { 4299 if (recordTrack != mActiveTrack.get()) { 4300 status = -EBUSY; 4301 } else if (mActiveTrack->mState == TrackBase::PAUSING) { 4302 mActiveTrack->mState = TrackBase::ACTIVE; 4303 } 4304 return status; 4305 } 4306 4307 recordTrack->mState = TrackBase::IDLE; 4308 mActiveTrack = recordTrack; 4309 mLock.unlock(); 4310 status_t status = AudioSystem::startInput(mId); 4311 mLock.lock(); 4312 if (status != NO_ERROR) { 4313 mActiveTrack.clear(); 4314 return status; 4315 } 4316 mRsmpInIndex = mFrameCount; 4317 mBytesRead = 0; 4318 if (mResampler != NULL) { 4319 mResampler->reset(); 4320 } 4321 mActiveTrack->mState = TrackBase::RESUMING; 4322 // signal thread to start 4323 LOGV("Signal record thread"); 4324 mWaitWorkCV.signal(); 4325 // do not wait for mStartStopCond if exiting 4326 if (mExiting) { 4327 mActiveTrack.clear(); 4328 status = INVALID_OPERATION; 4329 goto startError; 4330 } 4331 mStartStopCond.wait(mLock); 4332 if (mActiveTrack == 0) { 4333 LOGV("Record failed to start"); 4334 status = BAD_VALUE; 4335 goto startError; 4336 } 4337 LOGV("Record started OK"); 4338 return status; 4339 } 4340startError: 4341 AudioSystem::stopInput(mId); 4342 return status; 4343} 4344 4345void AudioFlinger::RecordThread::stop(RecordThread::RecordTrack* recordTrack) { 4346 LOGV("RecordThread::stop"); 4347 sp <ThreadBase> strongMe = this; 4348 { 4349 AutoMutex lock(&mLock); 4350 if (mActiveTrack != 0 && recordTrack == mActiveTrack.get()) { 4351 mActiveTrack->mState = TrackBase::PAUSING; 4352 // do not wait for mStartStopCond if exiting 4353 if (mExiting) { 4354 return; 4355 } 4356 mStartStopCond.wait(mLock); 4357 // if we have been restarted, recordTrack == mActiveTrack.get() here 4358 if (mActiveTrack == 0 || recordTrack != mActiveTrack.get()) { 4359 mLock.unlock(); 4360 AudioSystem::stopInput(mId); 4361 mLock.lock(); 4362 LOGV("Record stopped OK"); 4363 } 4364 } 4365 } 4366} 4367 4368status_t AudioFlinger::RecordThread::dump(int fd, const Vector<String16>& args) 4369{ 4370 const size_t SIZE = 256; 4371 char buffer[SIZE]; 4372 String8 result; 4373 pid_t pid = 0; 4374 4375 snprintf(buffer, SIZE, "\nInput thread %p internals\n", this); 4376 result.append(buffer); 4377 4378 if (mActiveTrack != 0) { 4379 result.append("Active Track:\n"); 4380 result.append(" Clien Fmt Chn mask Session Buf S SRate Serv User\n"); 4381 mActiveTrack->dump(buffer, SIZE); 4382 result.append(buffer); 4383 4384 snprintf(buffer, SIZE, "In index: %d\n", mRsmpInIndex); 4385 result.append(buffer); 4386 snprintf(buffer, SIZE, "In size: %d\n", mInputBytes); 4387 result.append(buffer); 4388 snprintf(buffer, SIZE, "Resampling: %d\n", (mResampler != 0)); 4389 result.append(buffer); 4390 snprintf(buffer, SIZE, "Out channel count: %d\n", mReqChannelCount); 4391 result.append(buffer); 4392 snprintf(buffer, SIZE, "Out sample rate: %d\n", mReqSampleRate); 4393 result.append(buffer); 4394 4395 4396 } else { 4397 result.append("No record client\n"); 4398 } 4399 write(fd, result.string(), result.size()); 4400 4401 dumpBase(fd, args); 4402 dumpEffectChains(fd, args); 4403 4404 return NO_ERROR; 4405} 4406 4407status_t AudioFlinger::RecordThread::getNextBuffer(AudioBufferProvider::Buffer* buffer) 4408{ 4409 size_t framesReq = buffer->frameCount; 4410 size_t framesReady = mFrameCount - mRsmpInIndex; 4411 int channelCount; 4412 4413 if (framesReady == 0) { 4414 mBytesRead = mInput->stream->read(mInput->stream, mRsmpInBuffer, mInputBytes); 4415 if (mBytesRead < 0) { 4416 LOGE("RecordThread::getNextBuffer() Error reading audio input"); 4417 if (mActiveTrack->mState == TrackBase::ACTIVE) { 4418 // Force input into standby so that it tries to 4419 // recover at next read attempt 4420 mInput->stream->common.standby(&mInput->stream->common); 4421 usleep(kRecordThreadSleepUs); 4422 } 4423 buffer->raw = 0; 4424 buffer->frameCount = 0; 4425 return NOT_ENOUGH_DATA; 4426 } 4427 mRsmpInIndex = 0; 4428 framesReady = mFrameCount; 4429 } 4430 4431 if (framesReq > framesReady) { 4432 framesReq = framesReady; 4433 } 4434 4435 if (mChannelCount == 1 && mReqChannelCount == 2) { 4436 channelCount = 1; 4437 } else { 4438 channelCount = 2; 4439 } 4440 buffer->raw = mRsmpInBuffer + mRsmpInIndex * channelCount; 4441 buffer->frameCount = framesReq; 4442 return NO_ERROR; 4443} 4444 4445void AudioFlinger::RecordThread::releaseBuffer(AudioBufferProvider::Buffer* buffer) 4446{ 4447 mRsmpInIndex += buffer->frameCount; 4448 buffer->frameCount = 0; 4449} 4450 4451bool AudioFlinger::RecordThread::checkForNewParameters_l() 4452{ 4453 bool reconfig = false; 4454 4455 while (!mNewParameters.isEmpty()) { 4456 status_t status = NO_ERROR; 4457 String8 keyValuePair = mNewParameters[0]; 4458 AudioParameter param = AudioParameter(keyValuePair); 4459 int value; 4460 int reqFormat = mFormat; 4461 int reqSamplingRate = mReqSampleRate; 4462 int reqChannelCount = mReqChannelCount; 4463 4464 if (param.getInt(String8(AudioParameter::keySamplingRate), value) == NO_ERROR) { 4465 reqSamplingRate = value; 4466 reconfig = true; 4467 } 4468 if (param.getInt(String8(AudioParameter::keyFormat), value) == NO_ERROR) { 4469 reqFormat = value; 4470 reconfig = true; 4471 } 4472 if (param.getInt(String8(AudioParameter::keyChannels), value) == NO_ERROR) { 4473 reqChannelCount = popcount(value); 4474 reconfig = true; 4475 } 4476 if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) { 4477 // do not accept frame count changes if tracks are open as the track buffer 4478 // size depends on frame count and correct behavior would not be garantied 4479 // if frame count is changed after track creation 4480 if (mActiveTrack != 0) { 4481 status = INVALID_OPERATION; 4482 } else { 4483 reconfig = true; 4484 } 4485 } 4486 if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) { 4487 // forward device change to effects that have requested to be 4488 // aware of attached audio device. 4489 for (size_t i = 0; i < mEffectChains.size(); i++) { 4490 mEffectChains[i]->setDevice_l(value); 4491 } 4492 // store input device and output device but do not forward output device to audio HAL. 4493 // Note that status is ignored by the caller for output device 4494 // (see AudioFlinger::setParameters() 4495 if (value & AUDIO_DEVICE_OUT_ALL) { 4496 mDevice &= (uint32_t)~(value & AUDIO_DEVICE_OUT_ALL); 4497 status = BAD_VALUE; 4498 } else { 4499 mDevice &= (uint32_t)~(value & AUDIO_DEVICE_IN_ALL); 4500 } 4501 mDevice |= (uint32_t)value; 4502 } 4503 if (status == NO_ERROR) { 4504 status = mInput->stream->common.set_parameters(&mInput->stream->common, keyValuePair.string()); 4505 if (status == INVALID_OPERATION) { 4506 mInput->stream->common.standby(&mInput->stream->common); 4507 status = mInput->stream->common.set_parameters(&mInput->stream->common, keyValuePair.string()); 4508 } 4509 if (reconfig) { 4510 if (status == BAD_VALUE && 4511 reqFormat == mInput->stream->common.get_format(&mInput->stream->common) && 4512 reqFormat == AUDIO_FORMAT_PCM_16_BIT && 4513 ((int)mInput->stream->common.get_sample_rate(&mInput->stream->common) <= (2 * reqSamplingRate)) && 4514 (popcount(mInput->stream->common.get_channels(&mInput->stream->common)) < 3) && 4515 (reqChannelCount < 3)) { 4516 status = NO_ERROR; 4517 } 4518 if (status == NO_ERROR) { 4519 readInputParameters(); 4520 sendConfigEvent_l(AudioSystem::INPUT_CONFIG_CHANGED); 4521 } 4522 } 4523 } 4524 4525 mNewParameters.removeAt(0); 4526 4527 mParamStatus = status; 4528 mParamCond.signal(); 4529 mWaitWorkCV.wait(mLock); 4530 } 4531 return reconfig; 4532} 4533 4534String8 AudioFlinger::RecordThread::getParameters(const String8& keys) 4535{ 4536 char *s; 4537 String8 out_s8; 4538 4539 s = mInput->stream->common.get_parameters(&mInput->stream->common, keys.string()); 4540 out_s8 = String8(s); 4541 free(s); 4542 return out_s8; 4543} 4544 4545void AudioFlinger::RecordThread::audioConfigChanged_l(int event, int param) { 4546 AudioSystem::OutputDescriptor desc; 4547 void *param2 = 0; 4548 4549 switch (event) { 4550 case AudioSystem::INPUT_OPENED: 4551 case AudioSystem::INPUT_CONFIG_CHANGED: 4552 desc.channels = mChannelMask; 4553 desc.samplingRate = mSampleRate; 4554 desc.format = mFormat; 4555 desc.frameCount = mFrameCount; 4556 desc.latency = 0; 4557 param2 = &desc; 4558 break; 4559 4560 case AudioSystem::INPUT_CLOSED: 4561 default: 4562 break; 4563 } 4564 mAudioFlinger->audioConfigChanged_l(event, mId, param2); 4565} 4566 4567void AudioFlinger::RecordThread::readInputParameters() 4568{ 4569 if (mRsmpInBuffer) delete mRsmpInBuffer; 4570 if (mRsmpOutBuffer) delete mRsmpOutBuffer; 4571 if (mResampler) delete mResampler; 4572 mResampler = 0; 4573 4574 mSampleRate = mInput->stream->common.get_sample_rate(&mInput->stream->common); 4575 mChannelMask = mInput->stream->common.get_channels(&mInput->stream->common); 4576 mChannelCount = (uint16_t)popcount(mChannelMask); 4577 mFormat = mInput->stream->common.get_format(&mInput->stream->common); 4578 mFrameSize = (uint16_t)audio_stream_frame_size(&mInput->stream->common); 4579 mInputBytes = mInput->stream->common.get_buffer_size(&mInput->stream->common); 4580 mFrameCount = mInputBytes / mFrameSize; 4581 mRsmpInBuffer = new int16_t[mFrameCount * mChannelCount]; 4582 4583 if (mSampleRate != mReqSampleRate && mChannelCount < 3 && mReqChannelCount < 3) 4584 { 4585 int channelCount; 4586 // optmization: if mono to mono, use the resampler in stereo to stereo mode to avoid 4587 // stereo to mono post process as the resampler always outputs stereo. 4588 if (mChannelCount == 1 && mReqChannelCount == 2) { 4589 channelCount = 1; 4590 } else { 4591 channelCount = 2; 4592 } 4593 mResampler = AudioResampler::create(16, channelCount, mReqSampleRate); 4594 mResampler->setSampleRate(mSampleRate); 4595 mResampler->setVolume(AudioMixer::UNITY_GAIN, AudioMixer::UNITY_GAIN); 4596 mRsmpOutBuffer = new int32_t[mFrameCount * 2]; 4597 4598 // optmization: if mono to mono, alter input frame count as if we were inputing stereo samples 4599 if (mChannelCount == 1 && mReqChannelCount == 1) { 4600 mFrameCount >>= 1; 4601 } 4602 4603 } 4604 mRsmpInIndex = mFrameCount; 4605} 4606 4607unsigned int AudioFlinger::RecordThread::getInputFramesLost() 4608{ 4609 return mInput->stream->get_input_frames_lost(mInput->stream); 4610} 4611 4612uint32_t AudioFlinger::RecordThread::hasAudioSession(int sessionId) 4613{ 4614 Mutex::Autolock _l(mLock); 4615 uint32_t result = 0; 4616 if (getEffectChain_l(sessionId) != 0) { 4617 result = EFFECT_SESSION; 4618 } 4619 4620 if (mTrack != NULL && sessionId == mTrack->sessionId()) { 4621 result |= TRACK_SESSION; 4622 } 4623 4624 return result; 4625} 4626 4627// ---------------------------------------------------------------------------- 4628 4629int AudioFlinger::openOutput(uint32_t *pDevices, 4630 uint32_t *pSamplingRate, 4631 uint32_t *pFormat, 4632 uint32_t *pChannels, 4633 uint32_t *pLatencyMs, 4634 uint32_t flags) 4635{ 4636 status_t status; 4637 PlaybackThread *thread = NULL; 4638 mHardwareStatus = AUDIO_HW_OUTPUT_OPEN; 4639 uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0; 4640 uint32_t format = pFormat ? *pFormat : 0; 4641 uint32_t channels = pChannels ? *pChannels : 0; 4642 uint32_t latency = pLatencyMs ? *pLatencyMs : 0; 4643 audio_stream_out_t *outStream; 4644 audio_hw_device_t *outHwDev; 4645 4646 LOGV("openOutput(), Device %x, SamplingRate %d, Format %d, Channels %x, flags %x", 4647 pDevices ? *pDevices : 0, 4648 samplingRate, 4649 format, 4650 channels, 4651 flags); 4652 4653 if (pDevices == NULL || *pDevices == 0) { 4654 return 0; 4655 } 4656 4657 Mutex::Autolock _l(mLock); 4658 4659 outHwDev = findSuitableHwDev_l(*pDevices); 4660 if (outHwDev == NULL) 4661 return 0; 4662 4663 status = outHwDev->open_output_stream(outHwDev, *pDevices, (int *)&format, 4664 &channels, &samplingRate, &outStream); 4665 LOGV("openOutput() openOutputStream returned output %p, SamplingRate %d, Format %d, Channels %x, status %d", 4666 outStream, 4667 samplingRate, 4668 format, 4669 channels, 4670 status); 4671 4672 mHardwareStatus = AUDIO_HW_IDLE; 4673 if (outStream != NULL) { 4674 AudioStreamOut *output = new AudioStreamOut(outHwDev, outStream); 4675 int id = nextUniqueId(); 4676 4677 if ((flags & AUDIO_POLICY_OUTPUT_FLAG_DIRECT) || 4678 (format != AUDIO_FORMAT_PCM_16_BIT) || 4679 (channels != AUDIO_CHANNEL_OUT_STEREO)) { 4680 thread = new DirectOutputThread(this, output, id, *pDevices); 4681 LOGV("openOutput() created direct output: ID %d thread %p", id, thread); 4682 } else { 4683 thread = new MixerThread(this, output, id, *pDevices); 4684 LOGV("openOutput() created mixer output: ID %d thread %p", id, thread); 4685 } 4686 mPlaybackThreads.add(id, thread); 4687 4688 if (pSamplingRate) *pSamplingRate = samplingRate; 4689 if (pFormat) *pFormat = format; 4690 if (pChannels) *pChannels = channels; 4691 if (pLatencyMs) *pLatencyMs = thread->latency(); 4692 4693 // notify client processes of the new output creation 4694 thread->audioConfigChanged_l(AudioSystem::OUTPUT_OPENED); 4695 return id; 4696 } 4697 4698 return 0; 4699} 4700 4701int AudioFlinger::openDuplicateOutput(int output1, int output2) 4702{ 4703 Mutex::Autolock _l(mLock); 4704 MixerThread *thread1 = checkMixerThread_l(output1); 4705 MixerThread *thread2 = checkMixerThread_l(output2); 4706 4707 if (thread1 == NULL || thread2 == NULL) { 4708 LOGW("openDuplicateOutput() wrong output mixer type for output %d or %d", output1, output2); 4709 return 0; 4710 } 4711 4712 int id = nextUniqueId(); 4713 DuplicatingThread *thread = new DuplicatingThread(this, thread1, id); 4714 thread->addOutputTrack(thread2); 4715 mPlaybackThreads.add(id, thread); 4716 // notify client processes of the new output creation 4717 thread->audioConfigChanged_l(AudioSystem::OUTPUT_OPENED); 4718 return id; 4719} 4720 4721status_t AudioFlinger::closeOutput(int output) 4722{ 4723 // keep strong reference on the playback thread so that 4724 // it is not destroyed while exit() is executed 4725 sp <PlaybackThread> thread; 4726 { 4727 Mutex::Autolock _l(mLock); 4728 thread = checkPlaybackThread_l(output); 4729 if (thread == NULL) { 4730 return BAD_VALUE; 4731 } 4732 4733 LOGV("closeOutput() %d", output); 4734 4735 if (thread->type() == ThreadBase::MIXER) { 4736 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 4737 if (mPlaybackThreads.valueAt(i)->type() == ThreadBase::DUPLICATING) { 4738 DuplicatingThread *dupThread = (DuplicatingThread *)mPlaybackThreads.valueAt(i).get(); 4739 dupThread->removeOutputTrack((MixerThread *)thread.get()); 4740 } 4741 } 4742 } 4743 void *param2 = 0; 4744 audioConfigChanged_l(AudioSystem::OUTPUT_CLOSED, output, param2); 4745 mPlaybackThreads.removeItem(output); 4746 } 4747 thread->exit(); 4748 4749 if (thread->type() != ThreadBase::DUPLICATING) { 4750 AudioStreamOut *out = thread->getOutput(); 4751 out->hwDev->close_output_stream(out->hwDev, out->stream); 4752 delete out; 4753 } 4754 return NO_ERROR; 4755} 4756 4757status_t AudioFlinger::suspendOutput(int output) 4758{ 4759 Mutex::Autolock _l(mLock); 4760 PlaybackThread *thread = checkPlaybackThread_l(output); 4761 4762 if (thread == NULL) { 4763 return BAD_VALUE; 4764 } 4765 4766 LOGV("suspendOutput() %d", output); 4767 thread->suspend(); 4768 4769 return NO_ERROR; 4770} 4771 4772status_t AudioFlinger::restoreOutput(int output) 4773{ 4774 Mutex::Autolock _l(mLock); 4775 PlaybackThread *thread = checkPlaybackThread_l(output); 4776 4777 if (thread == NULL) { 4778 return BAD_VALUE; 4779 } 4780 4781 LOGV("restoreOutput() %d", output); 4782 4783 thread->restore(); 4784 4785 return NO_ERROR; 4786} 4787 4788int AudioFlinger::openInput(uint32_t *pDevices, 4789 uint32_t *pSamplingRate, 4790 uint32_t *pFormat, 4791 uint32_t *pChannels, 4792 uint32_t acoustics) 4793{ 4794 status_t status; 4795 RecordThread *thread = NULL; 4796 uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0; 4797 uint32_t format = pFormat ? *pFormat : 0; 4798 uint32_t channels = pChannels ? *pChannels : 0; 4799 uint32_t reqSamplingRate = samplingRate; 4800 uint32_t reqFormat = format; 4801 uint32_t reqChannels = channels; 4802 audio_stream_in_t *inStream; 4803 audio_hw_device_t *inHwDev; 4804 4805 if (pDevices == NULL || *pDevices == 0) { 4806 return 0; 4807 } 4808 4809 Mutex::Autolock _l(mLock); 4810 4811 inHwDev = findSuitableHwDev_l(*pDevices); 4812 if (inHwDev == NULL) 4813 return 0; 4814 4815 status = inHwDev->open_input_stream(inHwDev, *pDevices, (int *)&format, 4816 &channels, &samplingRate, 4817 (audio_in_acoustics_t)acoustics, 4818 &inStream); 4819 LOGV("openInput() openInputStream returned input %p, SamplingRate %d, Format %d, Channels %x, acoustics %x, status %d", 4820 inStream, 4821 samplingRate, 4822 format, 4823 channels, 4824 acoustics, 4825 status); 4826 4827 // If the input could not be opened with the requested parameters and we can handle the conversion internally, 4828 // try to open again with the proposed parameters. The AudioFlinger can resample the input and do mono to stereo 4829 // or stereo to mono conversions on 16 bit PCM inputs. 4830 if (inStream == NULL && status == BAD_VALUE && 4831 reqFormat == format && format == AUDIO_FORMAT_PCM_16_BIT && 4832 (samplingRate <= 2 * reqSamplingRate) && 4833 (popcount(channels) < 3) && (popcount(reqChannels) < 3)) { 4834 LOGV("openInput() reopening with proposed sampling rate and channels"); 4835 status = inHwDev->open_input_stream(inHwDev, *pDevices, (int *)&format, 4836 &channels, &samplingRate, 4837 (audio_in_acoustics_t)acoustics, 4838 &inStream); 4839 } 4840 4841 if (inStream != NULL) { 4842 AudioStreamIn *input = new AudioStreamIn(inHwDev, inStream); 4843 4844 int id = nextUniqueId(); 4845 // Start record thread 4846 // RecorThread require both input and output device indication to forward to audio 4847 // pre processing modules 4848 uint32_t device = (*pDevices) | primaryOutputDevice_l(); 4849 thread = new RecordThread(this, 4850 input, 4851 reqSamplingRate, 4852 reqChannels, 4853 id, 4854 device); 4855 mRecordThreads.add(id, thread); 4856 LOGV("openInput() created record thread: ID %d thread %p", id, thread); 4857 if (pSamplingRate) *pSamplingRate = reqSamplingRate; 4858 if (pFormat) *pFormat = format; 4859 if (pChannels) *pChannels = reqChannels; 4860 4861 input->stream->common.standby(&input->stream->common); 4862 4863 // notify client processes of the new input creation 4864 thread->audioConfigChanged_l(AudioSystem::INPUT_OPENED); 4865 return id; 4866 } 4867 4868 return 0; 4869} 4870 4871status_t AudioFlinger::closeInput(int input) 4872{ 4873 // keep strong reference on the record thread so that 4874 // it is not destroyed while exit() is executed 4875 sp <RecordThread> thread; 4876 { 4877 Mutex::Autolock _l(mLock); 4878 thread = checkRecordThread_l(input); 4879 if (thread == NULL) { 4880 return BAD_VALUE; 4881 } 4882 4883 LOGV("closeInput() %d", input); 4884 void *param2 = 0; 4885 audioConfigChanged_l(AudioSystem::INPUT_CLOSED, input, param2); 4886 mRecordThreads.removeItem(input); 4887 } 4888 thread->exit(); 4889 4890 AudioStreamIn *in = thread->getInput(); 4891 in->hwDev->close_input_stream(in->hwDev, in->stream); 4892 delete in; 4893 4894 return NO_ERROR; 4895} 4896 4897status_t AudioFlinger::setStreamOutput(uint32_t stream, int output) 4898{ 4899 Mutex::Autolock _l(mLock); 4900 MixerThread *dstThread = checkMixerThread_l(output); 4901 if (dstThread == NULL) { 4902 LOGW("setStreamOutput() bad output id %d", output); 4903 return BAD_VALUE; 4904 } 4905 4906 LOGV("setStreamOutput() stream %d to output %d", stream, output); 4907 audioConfigChanged_l(AudioSystem::STREAM_CONFIG_CHANGED, output, &stream); 4908 4909 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 4910 PlaybackThread *thread = mPlaybackThreads.valueAt(i).get(); 4911 if (thread != dstThread && 4912 thread->type() != ThreadBase::DIRECT) { 4913 MixerThread *srcThread = (MixerThread *)thread; 4914 srcThread->invalidateTracks(stream); 4915 } 4916 } 4917 4918 return NO_ERROR; 4919} 4920 4921 4922int AudioFlinger::newAudioSessionId() 4923{ 4924 return nextUniqueId(); 4925} 4926 4927// checkPlaybackThread_l() must be called with AudioFlinger::mLock held 4928AudioFlinger::PlaybackThread *AudioFlinger::checkPlaybackThread_l(int output) const 4929{ 4930 PlaybackThread *thread = NULL; 4931 if (mPlaybackThreads.indexOfKey(output) >= 0) { 4932 thread = (PlaybackThread *)mPlaybackThreads.valueFor(output).get(); 4933 } 4934 return thread; 4935} 4936 4937// checkMixerThread_l() must be called with AudioFlinger::mLock held 4938AudioFlinger::MixerThread *AudioFlinger::checkMixerThread_l(int output) const 4939{ 4940 PlaybackThread *thread = checkPlaybackThread_l(output); 4941 if (thread != NULL) { 4942 if (thread->type() == ThreadBase::DIRECT) { 4943 thread = NULL; 4944 } 4945 } 4946 return (MixerThread *)thread; 4947} 4948 4949// checkRecordThread_l() must be called with AudioFlinger::mLock held 4950AudioFlinger::RecordThread *AudioFlinger::checkRecordThread_l(int input) const 4951{ 4952 RecordThread *thread = NULL; 4953 if (mRecordThreads.indexOfKey(input) >= 0) { 4954 thread = (RecordThread *)mRecordThreads.valueFor(input).get(); 4955 } 4956 return thread; 4957} 4958 4959uint32_t AudioFlinger::nextUniqueId() 4960{ 4961 return android_atomic_inc(&mNextUniqueId); 4962} 4963 4964AudioFlinger::PlaybackThread *AudioFlinger::primaryPlaybackThread_l() 4965{ 4966 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 4967 PlaybackThread *thread = mPlaybackThreads.valueAt(i).get(); 4968 if (thread->getOutput()->hwDev == mPrimaryHardwareDev) { 4969 return thread; 4970 } 4971 } 4972 return NULL; 4973} 4974 4975uint32_t AudioFlinger::primaryOutputDevice_l() 4976{ 4977 PlaybackThread *thread = primaryPlaybackThread_l(); 4978 4979 if (thread == NULL) { 4980 return 0; 4981 } 4982 4983 return thread->device(); 4984} 4985 4986 4987// ---------------------------------------------------------------------------- 4988// Effect management 4989// ---------------------------------------------------------------------------- 4990 4991 4992status_t AudioFlinger::queryNumberEffects(uint32_t *numEffects) 4993{ 4994 Mutex::Autolock _l(mLock); 4995 return EffectQueryNumberEffects(numEffects); 4996} 4997 4998status_t AudioFlinger::queryEffect(uint32_t index, effect_descriptor_t *descriptor) 4999{ 5000 Mutex::Autolock _l(mLock); 5001 return EffectQueryEffect(index, descriptor); 5002} 5003 5004status_t AudioFlinger::getEffectDescriptor(effect_uuid_t *pUuid, effect_descriptor_t *descriptor) 5005{ 5006 Mutex::Autolock _l(mLock); 5007 return EffectGetDescriptor(pUuid, descriptor); 5008} 5009 5010 5011sp<IEffect> AudioFlinger::createEffect(pid_t pid, 5012 effect_descriptor_t *pDesc, 5013 const sp<IEffectClient>& effectClient, 5014 int32_t priority, 5015 int io, 5016 int sessionId, 5017 status_t *status, 5018 int *id, 5019 int *enabled) 5020{ 5021 status_t lStatus = NO_ERROR; 5022 sp<EffectHandle> handle; 5023 effect_descriptor_t desc; 5024 sp<Client> client; 5025 wp<Client> wclient; 5026 5027 LOGV("createEffect pid %d, client %p, priority %d, sessionId %d, io %d", 5028 pid, effectClient.get(), priority, sessionId, io); 5029 5030 if (pDesc == NULL) { 5031 lStatus = BAD_VALUE; 5032 goto Exit; 5033 } 5034 5035 // check audio settings permission for global effects 5036 if (sessionId == AUDIO_SESSION_OUTPUT_MIX && !settingsAllowed()) { 5037 lStatus = PERMISSION_DENIED; 5038 goto Exit; 5039 } 5040 5041 // Session AUDIO_SESSION_OUTPUT_STAGE is reserved for output stage effects 5042 // that can only be created by audio policy manager (running in same process) 5043 if (sessionId == AUDIO_SESSION_OUTPUT_STAGE && getpid() != pid) { 5044 lStatus = PERMISSION_DENIED; 5045 goto Exit; 5046 } 5047 5048 if (io == 0) { 5049 if (sessionId == AUDIO_SESSION_OUTPUT_STAGE) { 5050 // output must be specified by AudioPolicyManager when using session 5051 // AUDIO_SESSION_OUTPUT_STAGE 5052 lStatus = BAD_VALUE; 5053 goto Exit; 5054 } else if (sessionId == AUDIO_SESSION_OUTPUT_MIX) { 5055 // if the output returned by getOutputForEffect() is removed before we lock the 5056 // mutex below, the call to checkPlaybackThread_l(io) below will detect it 5057 // and we will exit safely 5058 io = AudioSystem::getOutputForEffect(&desc); 5059 } 5060 } 5061 5062 { 5063 Mutex::Autolock _l(mLock); 5064 5065 5066 if (!EffectIsNullUuid(&pDesc->uuid)) { 5067 // if uuid is specified, request effect descriptor 5068 lStatus = EffectGetDescriptor(&pDesc->uuid, &desc); 5069 if (lStatus < 0) { 5070 LOGW("createEffect() error %d from EffectGetDescriptor", lStatus); 5071 goto Exit; 5072 } 5073 } else { 5074 // if uuid is not specified, look for an available implementation 5075 // of the required type in effect factory 5076 if (EffectIsNullUuid(&pDesc->type)) { 5077 LOGW("createEffect() no effect type"); 5078 lStatus = BAD_VALUE; 5079 goto Exit; 5080 } 5081 uint32_t numEffects = 0; 5082 effect_descriptor_t d; 5083 bool found = false; 5084 5085 lStatus = EffectQueryNumberEffects(&numEffects); 5086 if (lStatus < 0) { 5087 LOGW("createEffect() error %d from EffectQueryNumberEffects", lStatus); 5088 goto Exit; 5089 } 5090 for (uint32_t i = 0; i < numEffects; i++) { 5091 lStatus = EffectQueryEffect(i, &desc); 5092 if (lStatus < 0) { 5093 LOGW("createEffect() error %d from EffectQueryEffect", lStatus); 5094 continue; 5095 } 5096 if (memcmp(&desc.type, &pDesc->type, sizeof(effect_uuid_t)) == 0) { 5097 // If matching type found save effect descriptor. If the session is 5098 // 0 and the effect is not auxiliary, continue enumeration in case 5099 // an auxiliary version of this effect type is available 5100 found = true; 5101 memcpy(&d, &desc, sizeof(effect_descriptor_t)); 5102 if (sessionId != AUDIO_SESSION_OUTPUT_MIX || 5103 (desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5104 break; 5105 } 5106 } 5107 } 5108 if (!found) { 5109 lStatus = BAD_VALUE; 5110 LOGW("createEffect() effect not found"); 5111 goto Exit; 5112 } 5113 // For same effect type, chose auxiliary version over insert version if 5114 // connect to output mix (Compliance to OpenSL ES) 5115 if (sessionId == AUDIO_SESSION_OUTPUT_MIX && 5116 (d.flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_AUXILIARY) { 5117 memcpy(&desc, &d, sizeof(effect_descriptor_t)); 5118 } 5119 } 5120 5121 // Do not allow auxiliary effects on a session different from 0 (output mix) 5122 if (sessionId != AUDIO_SESSION_OUTPUT_MIX && 5123 (desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5124 lStatus = INVALID_OPERATION; 5125 goto Exit; 5126 } 5127 5128 // check recording permission for visualizer 5129 if ((memcmp(&desc.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0) && 5130 !recordingAllowed()) { 5131 lStatus = PERMISSION_DENIED; 5132 goto Exit; 5133 } 5134 5135 // return effect descriptor 5136 memcpy(pDesc, &desc, sizeof(effect_descriptor_t)); 5137 5138 // If output is not specified try to find a matching audio session ID in one of the 5139 // output threads. 5140 // If output is 0 here, sessionId is neither SESSION_OUTPUT_STAGE nor SESSION_OUTPUT_MIX 5141 // because of code checking output when entering the function. 5142 // Note: io is never 0 when creating an effect on an input 5143 if (io == 0) { 5144 // look for the thread where the specified audio session is present 5145 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 5146 if (mPlaybackThreads.valueAt(i)->hasAudioSession(sessionId) != 0) { 5147 io = mPlaybackThreads.keyAt(i); 5148 break; 5149 } 5150 } 5151 if (io == 0) { 5152 for (size_t i = 0; i < mRecordThreads.size(); i++) { 5153 if (mRecordThreads.valueAt(i)->hasAudioSession(sessionId) != 0) { 5154 io = mRecordThreads.keyAt(i); 5155 break; 5156 } 5157 } 5158 } 5159 // If no output thread contains the requested session ID, default to 5160 // first output. The effect chain will be moved to the correct output 5161 // thread when a track with the same session ID is created 5162 if (io == 0 && mPlaybackThreads.size()) { 5163 io = mPlaybackThreads.keyAt(0); 5164 } 5165 LOGV("createEffect() got io %d for effect %s", io, desc.name); 5166 } 5167 ThreadBase *thread = checkRecordThread_l(io); 5168 if (thread == NULL) { 5169 thread = checkPlaybackThread_l(io); 5170 if (thread == NULL) { 5171 LOGE("createEffect() unknown output thread"); 5172 lStatus = BAD_VALUE; 5173 goto Exit; 5174 } 5175 } 5176 5177 wclient = mClients.valueFor(pid); 5178 5179 if (wclient != NULL) { 5180 client = wclient.promote(); 5181 } else { 5182 client = new Client(this, pid); 5183 mClients.add(pid, client); 5184 } 5185 5186 // create effect on selected output trhead 5187 handle = thread->createEffect_l(client, effectClient, priority, sessionId, 5188 &desc, enabled, &lStatus); 5189 if (handle != 0 && id != NULL) { 5190 *id = handle->id(); 5191 } 5192 } 5193 5194Exit: 5195 if(status) { 5196 *status = lStatus; 5197 } 5198 return handle; 5199} 5200 5201status_t AudioFlinger::moveEffects(int sessionId, int srcOutput, int dstOutput) 5202{ 5203 LOGV("moveEffects() session %d, srcOutput %d, dstOutput %d", 5204 sessionId, srcOutput, dstOutput); 5205 Mutex::Autolock _l(mLock); 5206 if (srcOutput == dstOutput) { 5207 LOGW("moveEffects() same dst and src outputs %d", dstOutput); 5208 return NO_ERROR; 5209 } 5210 PlaybackThread *srcThread = checkPlaybackThread_l(srcOutput); 5211 if (srcThread == NULL) { 5212 LOGW("moveEffects() bad srcOutput %d", srcOutput); 5213 return BAD_VALUE; 5214 } 5215 PlaybackThread *dstThread = checkPlaybackThread_l(dstOutput); 5216 if (dstThread == NULL) { 5217 LOGW("moveEffects() bad dstOutput %d", dstOutput); 5218 return BAD_VALUE; 5219 } 5220 5221 Mutex::Autolock _dl(dstThread->mLock); 5222 Mutex::Autolock _sl(srcThread->mLock); 5223 moveEffectChain_l(sessionId, srcThread, dstThread, false); 5224 5225 return NO_ERROR; 5226} 5227 5228// moveEffectChain_l mustbe called with both srcThread and dstThread mLocks held 5229status_t AudioFlinger::moveEffectChain_l(int sessionId, 5230 AudioFlinger::PlaybackThread *srcThread, 5231 AudioFlinger::PlaybackThread *dstThread, 5232 bool reRegister) 5233{ 5234 LOGV("moveEffectChain_l() session %d from thread %p to thread %p", 5235 sessionId, srcThread, dstThread); 5236 5237 sp<EffectChain> chain = srcThread->getEffectChain_l(sessionId); 5238 if (chain == 0) { 5239 LOGW("moveEffectChain_l() effect chain for session %d not on source thread %p", 5240 sessionId, srcThread); 5241 return INVALID_OPERATION; 5242 } 5243 5244 // remove chain first. This is useful only if reconfiguring effect chain on same output thread, 5245 // so that a new chain is created with correct parameters when first effect is added. This is 5246 // otherwise unecessary as removeEffect_l() will remove the chain when last effect is 5247 // removed. 5248 srcThread->removeEffectChain_l(chain); 5249 5250 // transfer all effects one by one so that new effect chain is created on new thread with 5251 // correct buffer sizes and audio parameters and effect engines reconfigured accordingly 5252 int dstOutput = dstThread->id(); 5253 sp<EffectChain> dstChain; 5254 uint32_t strategy; 5255 sp<EffectModule> effect = chain->getEffectFromId_l(0); 5256 while (effect != 0) { 5257 srcThread->removeEffect_l(effect); 5258 dstThread->addEffect_l(effect); 5259 // if the move request is not received from audio policy manager, the effect must be 5260 // re-registered with the new strategy and output 5261 if (dstChain == 0) { 5262 dstChain = effect->chain().promote(); 5263 if (dstChain == 0) { 5264 LOGW("moveEffectChain_l() cannot get chain from effect %p", effect.get()); 5265 srcThread->addEffect_l(effect); 5266 return NO_INIT; 5267 } 5268 strategy = dstChain->strategy(); 5269 } 5270 if (reRegister) { 5271 AudioSystem::unregisterEffect(effect->id()); 5272 AudioSystem::registerEffect(&effect->desc(), 5273 dstOutput, 5274 strategy, 5275 sessionId, 5276 effect->id()); 5277 } 5278 effect = chain->getEffectFromId_l(0); 5279 } 5280 5281 return NO_ERROR; 5282} 5283 5284 5285// PlaybackThread::createEffect_l() must be called with AudioFlinger::mLock held 5286sp<AudioFlinger::EffectHandle> AudioFlinger::ThreadBase::createEffect_l( 5287 const sp<AudioFlinger::Client>& client, 5288 const sp<IEffectClient>& effectClient, 5289 int32_t priority, 5290 int sessionId, 5291 effect_descriptor_t *desc, 5292 int *enabled, 5293 status_t *status 5294 ) 5295{ 5296 sp<EffectModule> effect; 5297 sp<EffectHandle> handle; 5298 status_t lStatus; 5299 sp<EffectChain> chain; 5300 bool chainCreated = false; 5301 bool effectCreated = false; 5302 bool effectRegistered = false; 5303 5304 lStatus = initCheck(); 5305 if (lStatus != NO_ERROR) { 5306 LOGW("createEffect_l() Audio driver not initialized."); 5307 goto Exit; 5308 } 5309 5310 // Do not allow effects with session ID 0 on direct output or duplicating threads 5311 // TODO: add rule for hw accelerated effects on direct outputs with non PCM format 5312 if (sessionId == AUDIO_SESSION_OUTPUT_MIX && mType != MIXER) { 5313 LOGW("createEffect_l() Cannot add auxiliary effect %s to session %d", 5314 desc->name, sessionId); 5315 lStatus = BAD_VALUE; 5316 goto Exit; 5317 } 5318 // Only Pre processor effects are allowed on input threads and only on input threads 5319 if ((mType == RECORD && 5320 (desc->flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_PRE_PROC) || 5321 (mType != RECORD && 5322 (desc->flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC)) { 5323 LOGW("createEffect_l() effect %s (flags %08x) created on wrong thread type %d", 5324 desc->name, desc->flags, mType); 5325 lStatus = BAD_VALUE; 5326 goto Exit; 5327 } 5328 5329 LOGV("createEffect_l() thread %p effect %s on session %d", this, desc->name, sessionId); 5330 5331 { // scope for mLock 5332 Mutex::Autolock _l(mLock); 5333 5334 // check for existing effect chain with the requested audio session 5335 chain = getEffectChain_l(sessionId); 5336 if (chain == 0) { 5337 // create a new chain for this session 5338 LOGV("createEffect_l() new effect chain for session %d", sessionId); 5339 chain = new EffectChain(this, sessionId); 5340 addEffectChain_l(chain); 5341 chain->setStrategy(getStrategyForSession_l(sessionId)); 5342 chainCreated = true; 5343 } else { 5344 effect = chain->getEffectFromDesc_l(desc); 5345 } 5346 5347 LOGV("createEffect_l() got effect %p on chain %p", effect == 0 ? 0 : effect.get(), chain.get()); 5348 5349 if (effect == 0) { 5350 int id = mAudioFlinger->nextUniqueId(); 5351 // Check CPU and memory usage 5352 lStatus = AudioSystem::registerEffect(desc, mId, chain->strategy(), sessionId, id); 5353 if (lStatus != NO_ERROR) { 5354 goto Exit; 5355 } 5356 effectRegistered = true; 5357 // create a new effect module if none present in the chain 5358 effect = new EffectModule(this, chain, desc, id, sessionId); 5359 lStatus = effect->status(); 5360 if (lStatus != NO_ERROR) { 5361 goto Exit; 5362 } 5363 lStatus = chain->addEffect_l(effect); 5364 if (lStatus != NO_ERROR) { 5365 goto Exit; 5366 } 5367 effectCreated = true; 5368 5369 effect->setDevice(mDevice); 5370 effect->setMode(mAudioFlinger->getMode()); 5371 } 5372 // create effect handle and connect it to effect module 5373 handle = new EffectHandle(effect, client, effectClient, priority); 5374 lStatus = effect->addHandle(handle); 5375 if (enabled) { 5376 *enabled = (int)effect->isEnabled(); 5377 } 5378 } 5379 5380Exit: 5381 if (lStatus != NO_ERROR && lStatus != ALREADY_EXISTS) { 5382 Mutex::Autolock _l(mLock); 5383 if (effectCreated) { 5384 chain->removeEffect_l(effect); 5385 } 5386 if (effectRegistered) { 5387 AudioSystem::unregisterEffect(effect->id()); 5388 } 5389 if (chainCreated) { 5390 removeEffectChain_l(chain); 5391 } 5392 handle.clear(); 5393 } 5394 5395 if(status) { 5396 *status = lStatus; 5397 } 5398 return handle; 5399} 5400 5401sp<AudioFlinger::EffectModule> AudioFlinger::ThreadBase::getEffect_l(int sessionId, int effectId) 5402{ 5403 sp<EffectModule> effect; 5404 5405 sp<EffectChain> chain = getEffectChain_l(sessionId); 5406 if (chain != 0) { 5407 effect = chain->getEffectFromId_l(effectId); 5408 } 5409 return effect; 5410} 5411 5412// PlaybackThread::addEffect_l() must be called with AudioFlinger::mLock and 5413// PlaybackThread::mLock held 5414status_t AudioFlinger::ThreadBase::addEffect_l(const sp<EffectModule>& effect) 5415{ 5416 // check for existing effect chain with the requested audio session 5417 int sessionId = effect->sessionId(); 5418 sp<EffectChain> chain = getEffectChain_l(sessionId); 5419 bool chainCreated = false; 5420 5421 if (chain == 0) { 5422 // create a new chain for this session 5423 LOGV("addEffect_l() new effect chain for session %d", sessionId); 5424 chain = new EffectChain(this, sessionId); 5425 addEffectChain_l(chain); 5426 chain->setStrategy(getStrategyForSession_l(sessionId)); 5427 chainCreated = true; 5428 } 5429 LOGV("addEffect_l() %p chain %p effect %p", this, chain.get(), effect.get()); 5430 5431 if (chain->getEffectFromId_l(effect->id()) != 0) { 5432 LOGW("addEffect_l() %p effect %s already present in chain %p", 5433 this, effect->desc().name, chain.get()); 5434 return BAD_VALUE; 5435 } 5436 5437 status_t status = chain->addEffect_l(effect); 5438 if (status != NO_ERROR) { 5439 if (chainCreated) { 5440 removeEffectChain_l(chain); 5441 } 5442 return status; 5443 } 5444 5445 effect->setDevice(mDevice); 5446 effect->setMode(mAudioFlinger->getMode()); 5447 return NO_ERROR; 5448} 5449 5450void AudioFlinger::ThreadBase::removeEffect_l(const sp<EffectModule>& effect) { 5451 5452 LOGV("removeEffect_l() %p effect %p", this, effect.get()); 5453 effect_descriptor_t desc = effect->desc(); 5454 if ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5455 detachAuxEffect_l(effect->id()); 5456 } 5457 5458 sp<EffectChain> chain = effect->chain().promote(); 5459 if (chain != 0) { 5460 // remove effect chain if removing last effect 5461 if (chain->removeEffect_l(effect) == 0) { 5462 removeEffectChain_l(chain); 5463 } 5464 } else { 5465 LOGW("removeEffect_l() %p cannot promote chain for effect %p", this, effect.get()); 5466 } 5467} 5468 5469void AudioFlinger::ThreadBase::lockEffectChains_l( 5470 Vector<sp <AudioFlinger::EffectChain> >& effectChains) 5471{ 5472 effectChains = mEffectChains; 5473 for (size_t i = 0; i < mEffectChains.size(); i++) { 5474 mEffectChains[i]->lock(); 5475 } 5476} 5477 5478void AudioFlinger::ThreadBase::unlockEffectChains( 5479 Vector<sp <AudioFlinger::EffectChain> >& effectChains) 5480{ 5481 for (size_t i = 0; i < effectChains.size(); i++) { 5482 effectChains[i]->unlock(); 5483 } 5484} 5485 5486sp<AudioFlinger::EffectChain> AudioFlinger::ThreadBase::getEffectChain(int sessionId) 5487{ 5488 Mutex::Autolock _l(mLock); 5489 return getEffectChain_l(sessionId); 5490} 5491 5492sp<AudioFlinger::EffectChain> AudioFlinger::ThreadBase::getEffectChain_l(int sessionId) 5493{ 5494 sp<EffectChain> chain; 5495 5496 size_t size = mEffectChains.size(); 5497 for (size_t i = 0; i < size; i++) { 5498 if (mEffectChains[i]->sessionId() == sessionId) { 5499 chain = mEffectChains[i]; 5500 break; 5501 } 5502 } 5503 return chain; 5504} 5505 5506void AudioFlinger::ThreadBase::setMode(uint32_t mode) 5507{ 5508 Mutex::Autolock _l(mLock); 5509 size_t size = mEffectChains.size(); 5510 for (size_t i = 0; i < size; i++) { 5511 mEffectChains[i]->setMode_l(mode); 5512 } 5513} 5514 5515void AudioFlinger::ThreadBase::disconnectEffect(const sp<EffectModule>& effect, 5516 const wp<EffectHandle>& handle) { 5517 5518 Mutex::Autolock _l(mLock); 5519 LOGV("disconnectEffect() %p effect %p", this, effect.get()); 5520 // delete the effect module if removing last handle on it 5521 if (effect->removeHandle(handle) == 0) { 5522 removeEffect_l(effect); 5523 AudioSystem::unregisterEffect(effect->id()); 5524 } 5525} 5526 5527status_t AudioFlinger::PlaybackThread::addEffectChain_l(const sp<EffectChain>& chain) 5528{ 5529 int session = chain->sessionId(); 5530 int16_t *buffer = mMixBuffer; 5531 bool ownsBuffer = false; 5532 5533 LOGV("addEffectChain_l() %p on thread %p for session %d", chain.get(), this, session); 5534 if (session > 0) { 5535 // Only one effect chain can be present in direct output thread and it uses 5536 // the mix buffer as input 5537 if (mType != DIRECT) { 5538 size_t numSamples = mFrameCount * mChannelCount; 5539 buffer = new int16_t[numSamples]; 5540 memset(buffer, 0, numSamples * sizeof(int16_t)); 5541 LOGV("addEffectChain_l() creating new input buffer %p session %d", buffer, session); 5542 ownsBuffer = true; 5543 } 5544 5545 // Attach all tracks with same session ID to this chain. 5546 for (size_t i = 0; i < mTracks.size(); ++i) { 5547 sp<Track> track = mTracks[i]; 5548 if (session == track->sessionId()) { 5549 LOGV("addEffectChain_l() track->setMainBuffer track %p buffer %p", track.get(), buffer); 5550 track->setMainBuffer(buffer); 5551 chain->incTrackCnt(); 5552 } 5553 } 5554 5555 // indicate all active tracks in the chain 5556 for (size_t i = 0 ; i < mActiveTracks.size() ; ++i) { 5557 sp<Track> track = mActiveTracks[i].promote(); 5558 if (track == 0) continue; 5559 if (session == track->sessionId()) { 5560 LOGV("addEffectChain_l() activating track %p on session %d", track.get(), session); 5561 chain->incActiveTrackCnt(); 5562 } 5563 } 5564 } 5565 5566 chain->setInBuffer(buffer, ownsBuffer); 5567 chain->setOutBuffer(mMixBuffer); 5568 // Effect chain for session AUDIO_SESSION_OUTPUT_STAGE is inserted at end of effect 5569 // chains list in order to be processed last as it contains output stage effects 5570 // Effect chain for session AUDIO_SESSION_OUTPUT_MIX is inserted before 5571 // session AUDIO_SESSION_OUTPUT_STAGE to be processed 5572 // after track specific effects and before output stage 5573 // It is therefore mandatory that AUDIO_SESSION_OUTPUT_MIX == 0 and 5574 // that AUDIO_SESSION_OUTPUT_STAGE < AUDIO_SESSION_OUTPUT_MIX 5575 // Effect chain for other sessions are inserted at beginning of effect 5576 // chains list to be processed before output mix effects. Relative order between other 5577 // sessions is not important 5578 size_t size = mEffectChains.size(); 5579 size_t i = 0; 5580 for (i = 0; i < size; i++) { 5581 if (mEffectChains[i]->sessionId() < session) break; 5582 } 5583 mEffectChains.insertAt(chain, i); 5584 checkSuspendOnAddEffectChain_l(chain); 5585 5586 return NO_ERROR; 5587} 5588 5589size_t AudioFlinger::PlaybackThread::removeEffectChain_l(const sp<EffectChain>& chain) 5590{ 5591 int session = chain->sessionId(); 5592 5593 LOGV("removeEffectChain_l() %p from thread %p for session %d", chain.get(), this, session); 5594 5595 for (size_t i = 0; i < mEffectChains.size(); i++) { 5596 if (chain == mEffectChains[i]) { 5597 updateSuspendedSessionsOnRemoveEffectChain_l(chain); 5598 mEffectChains.removeAt(i); 5599 // detach all active tracks from the chain 5600 for (size_t i = 0 ; i < mActiveTracks.size() ; ++i) { 5601 sp<Track> track = mActiveTracks[i].promote(); 5602 if (track == 0) continue; 5603 if (session == track->sessionId()) { 5604 LOGV("removeEffectChain_l(): stopping track on chain %p for session Id: %d", 5605 chain.get(), session); 5606 chain->decActiveTrackCnt(); 5607 } 5608 } 5609 5610 // detach all tracks with same session ID from this chain 5611 for (size_t i = 0; i < mTracks.size(); ++i) { 5612 sp<Track> track = mTracks[i]; 5613 if (session == track->sessionId()) { 5614 track->setMainBuffer(mMixBuffer); 5615 chain->decTrackCnt(); 5616 } 5617 } 5618 break; 5619 } 5620 } 5621 return mEffectChains.size(); 5622} 5623 5624status_t AudioFlinger::PlaybackThread::attachAuxEffect( 5625 const sp<AudioFlinger::PlaybackThread::Track> track, int EffectId) 5626{ 5627 Mutex::Autolock _l(mLock); 5628 return attachAuxEffect_l(track, EffectId); 5629} 5630 5631status_t AudioFlinger::PlaybackThread::attachAuxEffect_l( 5632 const sp<AudioFlinger::PlaybackThread::Track> track, int EffectId) 5633{ 5634 status_t status = NO_ERROR; 5635 5636 if (EffectId == 0) { 5637 track->setAuxBuffer(0, NULL); 5638 } else { 5639 // Auxiliary effects are always in audio session AUDIO_SESSION_OUTPUT_MIX 5640 sp<EffectModule> effect = getEffect_l(AUDIO_SESSION_OUTPUT_MIX, EffectId); 5641 if (effect != 0) { 5642 if ((effect->desc().flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5643 track->setAuxBuffer(EffectId, (int32_t *)effect->inBuffer()); 5644 } else { 5645 status = INVALID_OPERATION; 5646 } 5647 } else { 5648 status = BAD_VALUE; 5649 } 5650 } 5651 return status; 5652} 5653 5654void AudioFlinger::PlaybackThread::detachAuxEffect_l(int effectId) 5655{ 5656 for (size_t i = 0; i < mTracks.size(); ++i) { 5657 sp<Track> track = mTracks[i]; 5658 if (track->auxEffectId() == effectId) { 5659 attachAuxEffect_l(track, 0); 5660 } 5661 } 5662} 5663 5664status_t AudioFlinger::RecordThread::addEffectChain_l(const sp<EffectChain>& chain) 5665{ 5666 // only one chain per input thread 5667 if (mEffectChains.size() != 0) { 5668 return INVALID_OPERATION; 5669 } 5670 LOGV("addEffectChain_l() %p on thread %p", chain.get(), this); 5671 5672 chain->setInBuffer(NULL); 5673 chain->setOutBuffer(NULL); 5674 5675 checkSuspendOnAddEffectChain_l(chain); 5676 5677 mEffectChains.add(chain); 5678 5679 return NO_ERROR; 5680} 5681 5682size_t AudioFlinger::RecordThread::removeEffectChain_l(const sp<EffectChain>& chain) 5683{ 5684 LOGV("removeEffectChain_l() %p from thread %p", chain.get(), this); 5685 LOGW_IF(mEffectChains.size() != 1, 5686 "removeEffectChain_l() %p invalid chain size %d on thread %p", 5687 chain.get(), mEffectChains.size(), this); 5688 if (mEffectChains.size() == 1) { 5689 updateSuspendedSessionsOnRemoveEffectChain_l(chain); 5690 mEffectChains.removeAt(0); 5691 } 5692 return 0; 5693} 5694 5695// ---------------------------------------------------------------------------- 5696// EffectModule implementation 5697// ---------------------------------------------------------------------------- 5698 5699#undef LOG_TAG 5700#define LOG_TAG "AudioFlinger::EffectModule" 5701 5702AudioFlinger::EffectModule::EffectModule(const wp<ThreadBase>& wThread, 5703 const wp<AudioFlinger::EffectChain>& chain, 5704 effect_descriptor_t *desc, 5705 int id, 5706 int sessionId) 5707 : mThread(wThread), mChain(chain), mId(id), mSessionId(sessionId), mEffectInterface(NULL), 5708 mStatus(NO_INIT), mState(IDLE), mSuspended(false) 5709{ 5710 LOGV("Constructor %p", this); 5711 int lStatus; 5712 sp<ThreadBase> thread = mThread.promote(); 5713 if (thread == 0) { 5714 return; 5715 } 5716 5717 memcpy(&mDescriptor, desc, sizeof(effect_descriptor_t)); 5718 5719 // create effect engine from effect factory 5720 mStatus = EffectCreate(&desc->uuid, sessionId, thread->id(), &mEffectInterface); 5721 5722 if (mStatus != NO_ERROR) { 5723 return; 5724 } 5725 lStatus = init(); 5726 if (lStatus < 0) { 5727 mStatus = lStatus; 5728 goto Error; 5729 } 5730 5731 LOGV("Constructor success name %s, Interface %p", mDescriptor.name, mEffectInterface); 5732 return; 5733Error: 5734 EffectRelease(mEffectInterface); 5735 mEffectInterface = NULL; 5736 LOGV("Constructor Error %d", mStatus); 5737} 5738 5739AudioFlinger::EffectModule::~EffectModule() 5740{ 5741 LOGV("Destructor %p", this); 5742 if (mEffectInterface != NULL) { 5743 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 5744 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) { 5745 sp<ThreadBase> thread = mThread.promote(); 5746 if (thread != 0) { 5747 thread->stream()->remove_audio_effect(thread->stream(), mEffectInterface); 5748 } 5749 } 5750 // release effect engine 5751 EffectRelease(mEffectInterface); 5752 } 5753} 5754 5755status_t AudioFlinger::EffectModule::addHandle(sp<EffectHandle>& handle) 5756{ 5757 status_t status; 5758 5759 Mutex::Autolock _l(mLock); 5760 // First handle in mHandles has highest priority and controls the effect module 5761 int priority = handle->priority(); 5762 size_t size = mHandles.size(); 5763 sp<EffectHandle> h; 5764 size_t i; 5765 for (i = 0; i < size; i++) { 5766 h = mHandles[i].promote(); 5767 if (h == 0) continue; 5768 if (h->priority() <= priority) break; 5769 } 5770 // if inserted in first place, move effect control from previous owner to this handle 5771 if (i == 0) { 5772 bool enabled = false; 5773 if (h != 0) { 5774 enabled = h->enabled(); 5775 h->setControl(false/*hasControl*/, true /*signal*/, enabled /*enabled*/); 5776 } 5777 handle->setControl(true /*hasControl*/, false /*signal*/, enabled /*enabled*/); 5778 status = NO_ERROR; 5779 } else { 5780 status = ALREADY_EXISTS; 5781 } 5782 LOGV("addHandle() %p added handle %p in position %d", this, handle.get(), i); 5783 mHandles.insertAt(handle, i); 5784 return status; 5785} 5786 5787size_t AudioFlinger::EffectModule::removeHandle(const wp<EffectHandle>& handle) 5788{ 5789 Mutex::Autolock _l(mLock); 5790 size_t size = mHandles.size(); 5791 size_t i; 5792 for (i = 0; i < size; i++) { 5793 if (mHandles[i] == handle) break; 5794 } 5795 if (i == size) { 5796 return size; 5797 } 5798 LOGV("removeHandle() %p removed handle %p in position %d", this, handle.unsafe_get(), i); 5799 5800 bool enabled = false; 5801 EffectHandle *hdl = handle.unsafe_get(); 5802 if (hdl) { 5803 LOGV("removeHandle() unsafe_get OK"); 5804 enabled = hdl->enabled(); 5805 } 5806 mHandles.removeAt(i); 5807 size = mHandles.size(); 5808 // if removed from first place, move effect control from this handle to next in line 5809 if (i == 0 && size != 0) { 5810 sp<EffectHandle> h = mHandles[0].promote(); 5811 if (h != 0) { 5812 h->setControl(true /*hasControl*/, true /*signal*/ , enabled /*enabled*/); 5813 } 5814 } 5815 5816 // Prevent calls to process() and other functions on effect interface from now on. 5817 // The effect engine will be released by the destructor when the last strong reference on 5818 // this object is released which can happen after next process is called. 5819 if (size == 0) { 5820 mState = DESTROYED; 5821 } 5822 5823 return size; 5824} 5825 5826sp<AudioFlinger::EffectHandle> AudioFlinger::EffectModule::controlHandle() 5827{ 5828 Mutex::Autolock _l(mLock); 5829 sp<EffectHandle> handle; 5830 if (mHandles.size() != 0) { 5831 handle = mHandles[0].promote(); 5832 } 5833 return handle; 5834} 5835 5836 5837 5838void AudioFlinger::EffectModule::disconnect(const wp<EffectHandle>& handle) 5839{ 5840 LOGV("disconnect() %p handle %p ", this, handle.unsafe_get()); 5841 // keep a strong reference on this EffectModule to avoid calling the 5842 // destructor before we exit 5843 sp<EffectModule> keep(this); 5844 { 5845 sp<ThreadBase> thread = mThread.promote(); 5846 if (thread != 0) { 5847 thread->disconnectEffect(keep, handle); 5848 } 5849 } 5850} 5851 5852void AudioFlinger::EffectModule::updateState() { 5853 Mutex::Autolock _l(mLock); 5854 5855 switch (mState) { 5856 case RESTART: 5857 reset_l(); 5858 // FALL THROUGH 5859 5860 case STARTING: 5861 // clear auxiliary effect input buffer for next accumulation 5862 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5863 memset(mConfig.inputCfg.buffer.raw, 5864 0, 5865 mConfig.inputCfg.buffer.frameCount*sizeof(int32_t)); 5866 } 5867 start_l(); 5868 mState = ACTIVE; 5869 break; 5870 case STOPPING: 5871 stop_l(); 5872 mDisableWaitCnt = mMaxDisableWaitCnt; 5873 mState = STOPPED; 5874 break; 5875 case STOPPED: 5876 // mDisableWaitCnt is forced to 1 by process() when the engine indicates the end of the 5877 // turn off sequence. 5878 if (--mDisableWaitCnt == 0) { 5879 reset_l(); 5880 mState = IDLE; 5881 } 5882 break; 5883 default: //IDLE , ACTIVE, DESTROYED 5884 break; 5885 } 5886} 5887 5888void AudioFlinger::EffectModule::process() 5889{ 5890 Mutex::Autolock _l(mLock); 5891 5892 if (mState == DESTROYED || mEffectInterface == NULL || 5893 mConfig.inputCfg.buffer.raw == NULL || 5894 mConfig.outputCfg.buffer.raw == NULL) { 5895 return; 5896 } 5897 5898 if (isProcessEnabled()) { 5899 // do 32 bit to 16 bit conversion for auxiliary effect input buffer 5900 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5901 AudioMixer::ditherAndClamp(mConfig.inputCfg.buffer.s32, 5902 mConfig.inputCfg.buffer.s32, 5903 mConfig.inputCfg.buffer.frameCount/2); 5904 } 5905 5906 // do the actual processing in the effect engine 5907 int ret = (*mEffectInterface)->process(mEffectInterface, 5908 &mConfig.inputCfg.buffer, 5909 &mConfig.outputCfg.buffer); 5910 5911 // force transition to IDLE state when engine is ready 5912 if (mState == STOPPED && ret == -ENODATA) { 5913 mDisableWaitCnt = 1; 5914 } 5915 5916 // clear auxiliary effect input buffer for next accumulation 5917 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5918 memset(mConfig.inputCfg.buffer.raw, 0, 5919 mConfig.inputCfg.buffer.frameCount*sizeof(int32_t)); 5920 } 5921 } else if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_INSERT && 5922 mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) { 5923 // If an insert effect is idle and input buffer is different from output buffer, 5924 // accumulate input onto output 5925 sp<EffectChain> chain = mChain.promote(); 5926 if (chain != 0 && chain->activeTrackCnt() != 0) { 5927 size_t frameCnt = mConfig.inputCfg.buffer.frameCount * 2; //always stereo here 5928 int16_t *in = mConfig.inputCfg.buffer.s16; 5929 int16_t *out = mConfig.outputCfg.buffer.s16; 5930 for (size_t i = 0; i < frameCnt; i++) { 5931 out[i] = clamp16((int32_t)out[i] + (int32_t)in[i]); 5932 } 5933 } 5934 } 5935} 5936 5937void AudioFlinger::EffectModule::reset_l() 5938{ 5939 if (mEffectInterface == NULL) { 5940 return; 5941 } 5942 (*mEffectInterface)->command(mEffectInterface, EFFECT_CMD_RESET, 0, NULL, 0, NULL); 5943} 5944 5945status_t AudioFlinger::EffectModule::configure() 5946{ 5947 uint32_t channels; 5948 if (mEffectInterface == NULL) { 5949 return NO_INIT; 5950 } 5951 5952 sp<ThreadBase> thread = mThread.promote(); 5953 if (thread == 0) { 5954 return DEAD_OBJECT; 5955 } 5956 5957 // TODO: handle configuration of effects replacing track process 5958 if (thread->channelCount() == 1) { 5959 channels = AUDIO_CHANNEL_OUT_MONO; 5960 } else { 5961 channels = AUDIO_CHANNEL_OUT_STEREO; 5962 } 5963 5964 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5965 mConfig.inputCfg.channels = AUDIO_CHANNEL_OUT_MONO; 5966 } else { 5967 mConfig.inputCfg.channels = channels; 5968 } 5969 mConfig.outputCfg.channels = channels; 5970 mConfig.inputCfg.format = AUDIO_FORMAT_PCM_16_BIT; 5971 mConfig.outputCfg.format = AUDIO_FORMAT_PCM_16_BIT; 5972 mConfig.inputCfg.samplingRate = thread->sampleRate(); 5973 mConfig.outputCfg.samplingRate = mConfig.inputCfg.samplingRate; 5974 mConfig.inputCfg.bufferProvider.cookie = NULL; 5975 mConfig.inputCfg.bufferProvider.getBuffer = NULL; 5976 mConfig.inputCfg.bufferProvider.releaseBuffer = NULL; 5977 mConfig.outputCfg.bufferProvider.cookie = NULL; 5978 mConfig.outputCfg.bufferProvider.getBuffer = NULL; 5979 mConfig.outputCfg.bufferProvider.releaseBuffer = NULL; 5980 mConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ; 5981 // Insert effect: 5982 // - in session AUDIO_SESSION_OUTPUT_MIX or AUDIO_SESSION_OUTPUT_STAGE, 5983 // always overwrites output buffer: input buffer == output buffer 5984 // - in other sessions: 5985 // last effect in the chain accumulates in output buffer: input buffer != output buffer 5986 // other effect: overwrites output buffer: input buffer == output buffer 5987 // Auxiliary effect: 5988 // accumulates in output buffer: input buffer != output buffer 5989 // Therefore: accumulate <=> input buffer != output buffer 5990 if (mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) { 5991 mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_ACCUMULATE; 5992 } else { 5993 mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_WRITE; 5994 } 5995 mConfig.inputCfg.mask = EFFECT_CONFIG_ALL; 5996 mConfig.outputCfg.mask = EFFECT_CONFIG_ALL; 5997 mConfig.inputCfg.buffer.frameCount = thread->frameCount(); 5998 mConfig.outputCfg.buffer.frameCount = mConfig.inputCfg.buffer.frameCount; 5999 6000 LOGV("configure() %p thread %p buffer %p framecount %d", 6001 this, thread.get(), mConfig.inputCfg.buffer.raw, mConfig.inputCfg.buffer.frameCount); 6002 6003 status_t cmdStatus; 6004 uint32_t size = sizeof(int); 6005 status_t status = (*mEffectInterface)->command(mEffectInterface, 6006 EFFECT_CMD_CONFIGURE, 6007 sizeof(effect_config_t), 6008 &mConfig, 6009 &size, 6010 &cmdStatus); 6011 if (status == 0) { 6012 status = cmdStatus; 6013 } 6014 6015 mMaxDisableWaitCnt = (MAX_DISABLE_TIME_MS * mConfig.outputCfg.samplingRate) / 6016 (1000 * mConfig.outputCfg.buffer.frameCount); 6017 6018 return status; 6019} 6020 6021status_t AudioFlinger::EffectModule::init() 6022{ 6023 Mutex::Autolock _l(mLock); 6024 if (mEffectInterface == NULL) { 6025 return NO_INIT; 6026 } 6027 status_t cmdStatus; 6028 uint32_t size = sizeof(status_t); 6029 status_t status = (*mEffectInterface)->command(mEffectInterface, 6030 EFFECT_CMD_INIT, 6031 0, 6032 NULL, 6033 &size, 6034 &cmdStatus); 6035 if (status == 0) { 6036 status = cmdStatus; 6037 } 6038 return status; 6039} 6040 6041status_t AudioFlinger::EffectModule::start_l() 6042{ 6043 if (mEffectInterface == NULL) { 6044 return NO_INIT; 6045 } 6046 status_t cmdStatus; 6047 uint32_t size = sizeof(status_t); 6048 status_t status = (*mEffectInterface)->command(mEffectInterface, 6049 EFFECT_CMD_ENABLE, 6050 0, 6051 NULL, 6052 &size, 6053 &cmdStatus); 6054 if (status == 0) { 6055 status = cmdStatus; 6056 } 6057 if (status == 0 && 6058 ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 6059 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC)) { 6060 sp<ThreadBase> thread = mThread.promote(); 6061 if (thread != 0) { 6062 thread->stream()->add_audio_effect(thread->stream(), mEffectInterface); 6063 } 6064 } 6065 return status; 6066} 6067 6068status_t AudioFlinger::EffectModule::stop() 6069{ 6070 Mutex::Autolock _l(mLock); 6071 return stop_l(); 6072} 6073 6074status_t AudioFlinger::EffectModule::stop_l() 6075{ 6076 if (mEffectInterface == NULL) { 6077 return NO_INIT; 6078 } 6079 status_t cmdStatus; 6080 uint32_t size = sizeof(status_t); 6081 status_t status = (*mEffectInterface)->command(mEffectInterface, 6082 EFFECT_CMD_DISABLE, 6083 0, 6084 NULL, 6085 &size, 6086 &cmdStatus); 6087 if (status == 0) { 6088 status = cmdStatus; 6089 } 6090 if (status == 0 && 6091 ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 6092 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC)) { 6093 sp<ThreadBase> thread = mThread.promote(); 6094 if (thread != 0) { 6095 thread->stream()->remove_audio_effect(thread->stream(), mEffectInterface); 6096 } 6097 } 6098 return status; 6099} 6100 6101status_t AudioFlinger::EffectModule::command(uint32_t cmdCode, 6102 uint32_t cmdSize, 6103 void *pCmdData, 6104 uint32_t *replySize, 6105 void *pReplyData) 6106{ 6107 Mutex::Autolock _l(mLock); 6108// LOGV("command(), cmdCode: %d, mEffectInterface: %p", cmdCode, mEffectInterface); 6109 6110 if (mState == DESTROYED || mEffectInterface == NULL) { 6111 return NO_INIT; 6112 } 6113 status_t status = (*mEffectInterface)->command(mEffectInterface, 6114 cmdCode, 6115 cmdSize, 6116 pCmdData, 6117 replySize, 6118 pReplyData); 6119 if (cmdCode != EFFECT_CMD_GET_PARAM && status == NO_ERROR) { 6120 uint32_t size = (replySize == NULL) ? 0 : *replySize; 6121 for (size_t i = 1; i < mHandles.size(); i++) { 6122 sp<EffectHandle> h = mHandles[i].promote(); 6123 if (h != 0) { 6124 h->commandExecuted(cmdCode, cmdSize, pCmdData, size, pReplyData); 6125 } 6126 } 6127 } 6128 return status; 6129} 6130 6131status_t AudioFlinger::EffectModule::setEnabled(bool enabled) 6132{ 6133 Mutex::Autolock _l(mLock); 6134 LOGV("setEnabled %p enabled %d", this, enabled); 6135 6136 if (enabled != isEnabled()) { 6137 switch (mState) { 6138 // going from disabled to enabled 6139 case IDLE: 6140 mState = STARTING; 6141 break; 6142 case STOPPED: 6143 mState = RESTART; 6144 break; 6145 case STOPPING: 6146 mState = ACTIVE; 6147 break; 6148 6149 // going from enabled to disabled 6150 case RESTART: 6151 mState = STOPPED; 6152 break; 6153 case STARTING: 6154 mState = IDLE; 6155 break; 6156 case ACTIVE: 6157 mState = STOPPING; 6158 break; 6159 case DESTROYED: 6160 return NO_ERROR; // simply ignore as we are being destroyed 6161 } 6162 for (size_t i = 1; i < mHandles.size(); i++) { 6163 sp<EffectHandle> h = mHandles[i].promote(); 6164 if (h != 0) { 6165 h->setEnabled(enabled); 6166 } 6167 } 6168 } 6169 return NO_ERROR; 6170} 6171 6172bool AudioFlinger::EffectModule::isEnabled() 6173{ 6174 switch (mState) { 6175 case RESTART: 6176 case STARTING: 6177 case ACTIVE: 6178 return true; 6179 case IDLE: 6180 case STOPPING: 6181 case STOPPED: 6182 case DESTROYED: 6183 default: 6184 return false; 6185 } 6186} 6187 6188bool AudioFlinger::EffectModule::isProcessEnabled() 6189{ 6190 switch (mState) { 6191 case RESTART: 6192 case ACTIVE: 6193 case STOPPING: 6194 case STOPPED: 6195 return true; 6196 case IDLE: 6197 case STARTING: 6198 case DESTROYED: 6199 default: 6200 return false; 6201 } 6202} 6203 6204status_t AudioFlinger::EffectModule::setVolume(uint32_t *left, uint32_t *right, bool controller) 6205{ 6206 Mutex::Autolock _l(mLock); 6207 status_t status = NO_ERROR; 6208 6209 // Send volume indication if EFFECT_FLAG_VOLUME_IND is set and read back altered volume 6210 // if controller flag is set (Note that controller == TRUE => EFFECT_FLAG_VOLUME_CTRL set) 6211 if (isProcessEnabled() && 6212 ((mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL || 6213 (mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_IND)) { 6214 status_t cmdStatus; 6215 uint32_t volume[2]; 6216 uint32_t *pVolume = NULL; 6217 uint32_t size = sizeof(volume); 6218 volume[0] = *left; 6219 volume[1] = *right; 6220 if (controller) { 6221 pVolume = volume; 6222 } 6223 status = (*mEffectInterface)->command(mEffectInterface, 6224 EFFECT_CMD_SET_VOLUME, 6225 size, 6226 volume, 6227 &size, 6228 pVolume); 6229 if (controller && status == NO_ERROR && size == sizeof(volume)) { 6230 *left = volume[0]; 6231 *right = volume[1]; 6232 } 6233 } 6234 return status; 6235} 6236 6237status_t AudioFlinger::EffectModule::setDevice(uint32_t device) 6238{ 6239 Mutex::Autolock _l(mLock); 6240 status_t status = NO_ERROR; 6241 if (device && (mDescriptor.flags & EFFECT_FLAG_DEVICE_MASK) == EFFECT_FLAG_DEVICE_IND) { 6242 // audio pre processing modules on RecordThread can receive both output and 6243 // input device indication in the same call 6244 uint32_t dev = device & AUDIO_DEVICE_OUT_ALL; 6245 if (dev) { 6246 status_t cmdStatus; 6247 uint32_t size = sizeof(status_t); 6248 6249 status = (*mEffectInterface)->command(mEffectInterface, 6250 EFFECT_CMD_SET_DEVICE, 6251 sizeof(uint32_t), 6252 &dev, 6253 &size, 6254 &cmdStatus); 6255 if (status == NO_ERROR) { 6256 status = cmdStatus; 6257 } 6258 } 6259 dev = device & AUDIO_DEVICE_IN_ALL; 6260 if (dev) { 6261 status_t cmdStatus; 6262 uint32_t size = sizeof(status_t); 6263 6264 status_t status2 = (*mEffectInterface)->command(mEffectInterface, 6265 EFFECT_CMD_SET_INPUT_DEVICE, 6266 sizeof(uint32_t), 6267 &dev, 6268 &size, 6269 &cmdStatus); 6270 if (status2 == NO_ERROR) { 6271 status2 = cmdStatus; 6272 } 6273 if (status == NO_ERROR) { 6274 status = status2; 6275 } 6276 } 6277 } 6278 return status; 6279} 6280 6281status_t AudioFlinger::EffectModule::setMode(uint32_t mode) 6282{ 6283 Mutex::Autolock _l(mLock); 6284 status_t status = NO_ERROR; 6285 if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_MODE_MASK) == EFFECT_FLAG_AUDIO_MODE_IND) { 6286 status_t cmdStatus; 6287 uint32_t size = sizeof(status_t); 6288 status = (*mEffectInterface)->command(mEffectInterface, 6289 EFFECT_CMD_SET_AUDIO_MODE, 6290 sizeof(int), 6291 &mode, 6292 &size, 6293 &cmdStatus); 6294 if (status == NO_ERROR) { 6295 status = cmdStatus; 6296 } 6297 } 6298 return status; 6299} 6300 6301void AudioFlinger::EffectModule::setSuspended(bool suspended) 6302{ 6303 Mutex::Autolock _l(mLock); 6304 mSuspended = suspended; 6305} 6306bool AudioFlinger::EffectModule::suspended() 6307{ 6308 Mutex::Autolock _l(mLock); 6309 return mSuspended; 6310} 6311 6312status_t AudioFlinger::EffectModule::dump(int fd, const Vector<String16>& args) 6313{ 6314 const size_t SIZE = 256; 6315 char buffer[SIZE]; 6316 String8 result; 6317 6318 snprintf(buffer, SIZE, "\tEffect ID %d:\n", mId); 6319 result.append(buffer); 6320 6321 bool locked = tryLock(mLock); 6322 // failed to lock - AudioFlinger is probably deadlocked 6323 if (!locked) { 6324 result.append("\t\tCould not lock Fx mutex:\n"); 6325 } 6326 6327 result.append("\t\tSession Status State Engine:\n"); 6328 snprintf(buffer, SIZE, "\t\t%05d %03d %03d 0x%08x\n", 6329 mSessionId, mStatus, mState, (uint32_t)mEffectInterface); 6330 result.append(buffer); 6331 6332 result.append("\t\tDescriptor:\n"); 6333 snprintf(buffer, SIZE, "\t\t- UUID: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n", 6334 mDescriptor.uuid.timeLow, mDescriptor.uuid.timeMid, mDescriptor.uuid.timeHiAndVersion, 6335 mDescriptor.uuid.clockSeq, mDescriptor.uuid.node[0], mDescriptor.uuid.node[1],mDescriptor.uuid.node[2], 6336 mDescriptor.uuid.node[3],mDescriptor.uuid.node[4],mDescriptor.uuid.node[5]); 6337 result.append(buffer); 6338 snprintf(buffer, SIZE, "\t\t- TYPE: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n", 6339 mDescriptor.type.timeLow, mDescriptor.type.timeMid, mDescriptor.type.timeHiAndVersion, 6340 mDescriptor.type.clockSeq, mDescriptor.type.node[0], mDescriptor.type.node[1],mDescriptor.type.node[2], 6341 mDescriptor.type.node[3],mDescriptor.type.node[4],mDescriptor.type.node[5]); 6342 result.append(buffer); 6343 snprintf(buffer, SIZE, "\t\t- apiVersion: %08X\n\t\t- flags: %08X\n", 6344 mDescriptor.apiVersion, 6345 mDescriptor.flags); 6346 result.append(buffer); 6347 snprintf(buffer, SIZE, "\t\t- name: %s\n", 6348 mDescriptor.name); 6349 result.append(buffer); 6350 snprintf(buffer, SIZE, "\t\t- implementor: %s\n", 6351 mDescriptor.implementor); 6352 result.append(buffer); 6353 6354 result.append("\t\t- Input configuration:\n"); 6355 result.append("\t\t\tBuffer Frames Smp rate Channels Format\n"); 6356 snprintf(buffer, SIZE, "\t\t\t0x%08x %05d %05d %08x %d\n", 6357 (uint32_t)mConfig.inputCfg.buffer.raw, 6358 mConfig.inputCfg.buffer.frameCount, 6359 mConfig.inputCfg.samplingRate, 6360 mConfig.inputCfg.channels, 6361 mConfig.inputCfg.format); 6362 result.append(buffer); 6363 6364 result.append("\t\t- Output configuration:\n"); 6365 result.append("\t\t\tBuffer Frames Smp rate Channels Format\n"); 6366 snprintf(buffer, SIZE, "\t\t\t0x%08x %05d %05d %08x %d\n", 6367 (uint32_t)mConfig.outputCfg.buffer.raw, 6368 mConfig.outputCfg.buffer.frameCount, 6369 mConfig.outputCfg.samplingRate, 6370 mConfig.outputCfg.channels, 6371 mConfig.outputCfg.format); 6372 result.append(buffer); 6373 6374 snprintf(buffer, SIZE, "\t\t%d Clients:\n", mHandles.size()); 6375 result.append(buffer); 6376 result.append("\t\t\tPid Priority Ctrl Locked client server\n"); 6377 for (size_t i = 0; i < mHandles.size(); ++i) { 6378 sp<EffectHandle> handle = mHandles[i].promote(); 6379 if (handle != 0) { 6380 handle->dump(buffer, SIZE); 6381 result.append(buffer); 6382 } 6383 } 6384 6385 result.append("\n"); 6386 6387 write(fd, result.string(), result.length()); 6388 6389 if (locked) { 6390 mLock.unlock(); 6391 } 6392 6393 return NO_ERROR; 6394} 6395 6396// ---------------------------------------------------------------------------- 6397// EffectHandle implementation 6398// ---------------------------------------------------------------------------- 6399 6400#undef LOG_TAG 6401#define LOG_TAG "AudioFlinger::EffectHandle" 6402 6403AudioFlinger::EffectHandle::EffectHandle(const sp<EffectModule>& effect, 6404 const sp<AudioFlinger::Client>& client, 6405 const sp<IEffectClient>& effectClient, 6406 int32_t priority) 6407 : BnEffect(), 6408 mEffect(effect), mEffectClient(effectClient), mClient(client), 6409 mPriority(priority), mHasControl(false), mEnabled(false) 6410{ 6411 LOGV("constructor %p", this); 6412 6413 int bufOffset = ((sizeof(effect_param_cblk_t) - 1) / sizeof(int) + 1) * sizeof(int); 6414 mCblkMemory = client->heap()->allocate(EFFECT_PARAM_BUFFER_SIZE + bufOffset); 6415 if (mCblkMemory != 0) { 6416 mCblk = static_cast<effect_param_cblk_t *>(mCblkMemory->pointer()); 6417 6418 if (mCblk) { 6419 new(mCblk) effect_param_cblk_t(); 6420 mBuffer = (uint8_t *)mCblk + bufOffset; 6421 } 6422 } else { 6423 LOGE("not enough memory for Effect size=%u", EFFECT_PARAM_BUFFER_SIZE + sizeof(effect_param_cblk_t)); 6424 return; 6425 } 6426} 6427 6428AudioFlinger::EffectHandle::~EffectHandle() 6429{ 6430 LOGV("Destructor %p", this); 6431 disconnect(); 6432 LOGV("Destructor DONE %p", this); 6433} 6434 6435status_t AudioFlinger::EffectHandle::enable() 6436{ 6437 LOGV("enable %p", this); 6438 if (!mHasControl) return INVALID_OPERATION; 6439 if (mEffect == 0) return DEAD_OBJECT; 6440 6441 mEnabled = true; 6442 6443 sp<ThreadBase> thread = mEffect->thread().promote(); 6444 if (thread != 0) { 6445 thread->checkSuspendOnEffectEnabled(mEffect, true, mEffect->sessionId()); 6446 } 6447 6448 // checkSuspendOnEffectEnabled() can suspend this same effect when enabled 6449 if (mEffect->suspended()) { 6450 return NO_ERROR; 6451 } 6452 6453 return mEffect->setEnabled(true); 6454} 6455 6456status_t AudioFlinger::EffectHandle::disable() 6457{ 6458 LOGV("disable %p", this); 6459 if (!mHasControl) return INVALID_OPERATION; 6460 if (mEffect == 0) return DEAD_OBJECT; 6461 6462 mEnabled = false; 6463 6464 if (mEffect->suspended()) { 6465 return NO_ERROR; 6466 } 6467 6468 status_t status = mEffect->setEnabled(false); 6469 6470 sp<ThreadBase> thread = mEffect->thread().promote(); 6471 if (thread != 0) { 6472 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 6473 } 6474 6475 return status; 6476} 6477 6478void AudioFlinger::EffectHandle::disconnect() 6479{ 6480 LOGV("disconnect %p", this); 6481 if (mEffect == 0) { 6482 return; 6483 } 6484 6485 mEffect->disconnect(this); 6486 6487 sp<ThreadBase> thread = mEffect->thread().promote(); 6488 if (thread != 0) { 6489 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 6490 } 6491 6492 // release sp on module => module destructor can be called now 6493 mEffect.clear(); 6494 if (mCblk) { 6495 mCblk->~effect_param_cblk_t(); // destroy our shared-structure. 6496 } 6497 mCblkMemory.clear(); // and free the shared memory 6498 if (mClient != 0) { 6499 Mutex::Autolock _l(mClient->audioFlinger()->mLock); 6500 mClient.clear(); 6501 } 6502} 6503 6504status_t AudioFlinger::EffectHandle::command(uint32_t cmdCode, 6505 uint32_t cmdSize, 6506 void *pCmdData, 6507 uint32_t *replySize, 6508 void *pReplyData) 6509{ 6510// LOGV("command(), cmdCode: %d, mHasControl: %d, mEffect: %p", 6511// cmdCode, mHasControl, (mEffect == 0) ? 0 : mEffect.get()); 6512 6513 // only get parameter command is permitted for applications not controlling the effect 6514 if (!mHasControl && cmdCode != EFFECT_CMD_GET_PARAM) { 6515 return INVALID_OPERATION; 6516 } 6517 if (mEffect == 0) return DEAD_OBJECT; 6518 6519 // handle commands that are not forwarded transparently to effect engine 6520 if (cmdCode == EFFECT_CMD_SET_PARAM_COMMIT) { 6521 // No need to trylock() here as this function is executed in the binder thread serving a particular client process: 6522 // no risk to block the whole media server process or mixer threads is we are stuck here 6523 Mutex::Autolock _l(mCblk->lock); 6524 if (mCblk->clientIndex > EFFECT_PARAM_BUFFER_SIZE || 6525 mCblk->serverIndex > EFFECT_PARAM_BUFFER_SIZE) { 6526 mCblk->serverIndex = 0; 6527 mCblk->clientIndex = 0; 6528 return BAD_VALUE; 6529 } 6530 status_t status = NO_ERROR; 6531 while (mCblk->serverIndex < mCblk->clientIndex) { 6532 int reply; 6533 uint32_t rsize = sizeof(int); 6534 int *p = (int *)(mBuffer + mCblk->serverIndex); 6535 int size = *p++; 6536 if (((uint8_t *)p + size) > mBuffer + mCblk->clientIndex) { 6537 LOGW("command(): invalid parameter block size"); 6538 break; 6539 } 6540 effect_param_t *param = (effect_param_t *)p; 6541 if (param->psize == 0 || param->vsize == 0) { 6542 LOGW("command(): null parameter or value size"); 6543 mCblk->serverIndex += size; 6544 continue; 6545 } 6546 uint32_t psize = sizeof(effect_param_t) + 6547 ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) + 6548 param->vsize; 6549 status_t ret = mEffect->command(EFFECT_CMD_SET_PARAM, 6550 psize, 6551 p, 6552 &rsize, 6553 &reply); 6554 // stop at first error encountered 6555 if (ret != NO_ERROR) { 6556 status = ret; 6557 *(int *)pReplyData = reply; 6558 break; 6559 } else if (reply != NO_ERROR) { 6560 *(int *)pReplyData = reply; 6561 break; 6562 } 6563 mCblk->serverIndex += size; 6564 } 6565 mCblk->serverIndex = 0; 6566 mCblk->clientIndex = 0; 6567 return status; 6568 } else if (cmdCode == EFFECT_CMD_ENABLE) { 6569 *(int *)pReplyData = NO_ERROR; 6570 return enable(); 6571 } else if (cmdCode == EFFECT_CMD_DISABLE) { 6572 *(int *)pReplyData = NO_ERROR; 6573 return disable(); 6574 } 6575 6576 return mEffect->command(cmdCode, cmdSize, pCmdData, replySize, pReplyData); 6577} 6578 6579sp<IMemory> AudioFlinger::EffectHandle::getCblk() const { 6580 return mCblkMemory; 6581} 6582 6583void AudioFlinger::EffectHandle::setControl(bool hasControl, bool signal, bool enabled) 6584{ 6585 LOGV("setControl %p control %d", this, hasControl); 6586 6587 mHasControl = hasControl; 6588 mEnabled = enabled; 6589 6590 if (signal && mEffectClient != 0) { 6591 mEffectClient->controlStatusChanged(hasControl); 6592 } 6593} 6594 6595void AudioFlinger::EffectHandle::commandExecuted(uint32_t cmdCode, 6596 uint32_t cmdSize, 6597 void *pCmdData, 6598 uint32_t replySize, 6599 void *pReplyData) 6600{ 6601 if (mEffectClient != 0) { 6602 mEffectClient->commandExecuted(cmdCode, cmdSize, pCmdData, replySize, pReplyData); 6603 } 6604} 6605 6606 6607 6608void AudioFlinger::EffectHandle::setEnabled(bool enabled) 6609{ 6610 if (mEffectClient != 0) { 6611 mEffectClient->enableStatusChanged(enabled); 6612 } 6613} 6614 6615status_t AudioFlinger::EffectHandle::onTransact( 6616 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 6617{ 6618 return BnEffect::onTransact(code, data, reply, flags); 6619} 6620 6621 6622void AudioFlinger::EffectHandle::dump(char* buffer, size_t size) 6623{ 6624 bool locked = tryLock(mCblk->lock); 6625 6626 snprintf(buffer, size, "\t\t\t%05d %05d %01u %01u %05u %05u\n", 6627 (mClient == NULL) ? getpid() : mClient->pid(), 6628 mPriority, 6629 mHasControl, 6630 !locked, 6631 mCblk->clientIndex, 6632 mCblk->serverIndex 6633 ); 6634 6635 if (locked) { 6636 mCblk->lock.unlock(); 6637 } 6638} 6639 6640#undef LOG_TAG 6641#define LOG_TAG "AudioFlinger::EffectChain" 6642 6643AudioFlinger::EffectChain::EffectChain(const wp<ThreadBase>& wThread, 6644 int sessionId) 6645 : mThread(wThread), mSessionId(sessionId), mActiveTrackCnt(0), mTrackCnt(0), 6646 mOwnInBuffer(false), mVolumeCtrlIdx(-1), mLeftVolume(UINT_MAX), mRightVolume(UINT_MAX), 6647 mNewLeftVolume(UINT_MAX), mNewRightVolume(UINT_MAX) 6648{ 6649 mStrategy = AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC); 6650} 6651 6652AudioFlinger::EffectChain::~EffectChain() 6653{ 6654 if (mOwnInBuffer) { 6655 delete mInBuffer; 6656 } 6657 6658} 6659 6660// getEffectFromDesc_l() must be called with ThreadBase::mLock held 6661sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromDesc_l(effect_descriptor_t *descriptor) 6662{ 6663 sp<EffectModule> effect; 6664 size_t size = mEffects.size(); 6665 6666 for (size_t i = 0; i < size; i++) { 6667 if (memcmp(&mEffects[i]->desc().uuid, &descriptor->uuid, sizeof(effect_uuid_t)) == 0) { 6668 effect = mEffects[i]; 6669 break; 6670 } 6671 } 6672 return effect; 6673} 6674 6675// getEffectFromId_l() must be called with ThreadBase::mLock held 6676sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromId_l(int id) 6677{ 6678 sp<EffectModule> effect; 6679 size_t size = mEffects.size(); 6680 6681 for (size_t i = 0; i < size; i++) { 6682 // by convention, return first effect if id provided is 0 (0 is never a valid id) 6683 if (id == 0 || mEffects[i]->id() == id) { 6684 effect = mEffects[i]; 6685 break; 6686 } 6687 } 6688 return effect; 6689} 6690 6691// getEffectFromType_l() must be called with ThreadBase::mLock held 6692sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromType_l( 6693 const effect_uuid_t *type) 6694{ 6695 sp<EffectModule> effect; 6696 size_t size = mEffects.size(); 6697 6698 for (size_t i = 0; i < size; i++) { 6699 if (memcmp(&mEffects[i]->desc().type, type, sizeof(effect_uuid_t)) == 0) { 6700 effect = mEffects[i]; 6701 break; 6702 } 6703 } 6704 return effect; 6705} 6706 6707// Must be called with EffectChain::mLock locked 6708void AudioFlinger::EffectChain::process_l() 6709{ 6710 sp<ThreadBase> thread = mThread.promote(); 6711 if (thread == 0) { 6712 LOGW("process_l(): cannot promote mixer thread"); 6713 return; 6714 } 6715 bool isGlobalSession = (mSessionId == AUDIO_SESSION_OUTPUT_MIX) || 6716 (mSessionId == AUDIO_SESSION_OUTPUT_STAGE); 6717 bool tracksOnSession = false; 6718 if (!isGlobalSession) { 6719 tracksOnSession = (trackCnt() != 0); 6720 } 6721 6722 // if no track is active, input buffer must be cleared here as the mixer process 6723 // will not do it 6724 if (tracksOnSession && 6725 activeTrackCnt() == 0) { 6726 size_t numSamples = thread->frameCount() * thread->channelCount(); 6727 memset(mInBuffer, 0, numSamples * sizeof(int16_t)); 6728 } 6729 6730 size_t size = mEffects.size(); 6731 // do not process effect if no track is present in same audio session 6732 if (isGlobalSession || tracksOnSession) { 6733 for (size_t i = 0; i < size; i++) { 6734 mEffects[i]->process(); 6735 } 6736 } 6737 for (size_t i = 0; i < size; i++) { 6738 mEffects[i]->updateState(); 6739 } 6740} 6741 6742// addEffect_l() must be called with PlaybackThread::mLock held 6743status_t AudioFlinger::EffectChain::addEffect_l(const sp<EffectModule>& effect) 6744{ 6745 effect_descriptor_t desc = effect->desc(); 6746 uint32_t insertPref = desc.flags & EFFECT_FLAG_INSERT_MASK; 6747 6748 Mutex::Autolock _l(mLock); 6749 effect->setChain(this); 6750 sp<ThreadBase> thread = mThread.promote(); 6751 if (thread == 0) { 6752 return NO_INIT; 6753 } 6754 effect->setThread(thread); 6755 6756 if ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 6757 // Auxiliary effects are inserted at the beginning of mEffects vector as 6758 // they are processed first and accumulated in chain input buffer 6759 mEffects.insertAt(effect, 0); 6760 6761 // the input buffer for auxiliary effect contains mono samples in 6762 // 32 bit format. This is to avoid saturation in AudoMixer 6763 // accumulation stage. Saturation is done in EffectModule::process() before 6764 // calling the process in effect engine 6765 size_t numSamples = thread->frameCount(); 6766 int32_t *buffer = new int32_t[numSamples]; 6767 memset(buffer, 0, numSamples * sizeof(int32_t)); 6768 effect->setInBuffer((int16_t *)buffer); 6769 // auxiliary effects output samples to chain input buffer for further processing 6770 // by insert effects 6771 effect->setOutBuffer(mInBuffer); 6772 } else { 6773 // Insert effects are inserted at the end of mEffects vector as they are processed 6774 // after track and auxiliary effects. 6775 // Insert effect order as a function of indicated preference: 6776 // if EFFECT_FLAG_INSERT_EXCLUSIVE, insert in first position or reject if 6777 // another effect is present 6778 // else if EFFECT_FLAG_INSERT_FIRST, insert in first position or after the 6779 // last effect claiming first position 6780 // else if EFFECT_FLAG_INSERT_LAST, insert in last position or before the 6781 // first effect claiming last position 6782 // else if EFFECT_FLAG_INSERT_ANY insert after first or before last 6783 // Reject insertion if an effect with EFFECT_FLAG_INSERT_EXCLUSIVE is 6784 // already present 6785 6786 int size = (int)mEffects.size(); 6787 int idx_insert = size; 6788 int idx_insert_first = -1; 6789 int idx_insert_last = -1; 6790 6791 for (int i = 0; i < size; i++) { 6792 effect_descriptor_t d = mEffects[i]->desc(); 6793 uint32_t iMode = d.flags & EFFECT_FLAG_TYPE_MASK; 6794 uint32_t iPref = d.flags & EFFECT_FLAG_INSERT_MASK; 6795 if (iMode == EFFECT_FLAG_TYPE_INSERT) { 6796 // check invalid effect chaining combinations 6797 if (insertPref == EFFECT_FLAG_INSERT_EXCLUSIVE || 6798 iPref == EFFECT_FLAG_INSERT_EXCLUSIVE) { 6799 LOGW("addEffect_l() could not insert effect %s: exclusive conflict with %s", desc.name, d.name); 6800 return INVALID_OPERATION; 6801 } 6802 // remember position of first insert effect and by default 6803 // select this as insert position for new effect 6804 if (idx_insert == size) { 6805 idx_insert = i; 6806 } 6807 // remember position of last insert effect claiming 6808 // first position 6809 if (iPref == EFFECT_FLAG_INSERT_FIRST) { 6810 idx_insert_first = i; 6811 } 6812 // remember position of first insert effect claiming 6813 // last position 6814 if (iPref == EFFECT_FLAG_INSERT_LAST && 6815 idx_insert_last == -1) { 6816 idx_insert_last = i; 6817 } 6818 } 6819 } 6820 6821 // modify idx_insert from first position if needed 6822 if (insertPref == EFFECT_FLAG_INSERT_LAST) { 6823 if (idx_insert_last != -1) { 6824 idx_insert = idx_insert_last; 6825 } else { 6826 idx_insert = size; 6827 } 6828 } else { 6829 if (idx_insert_first != -1) { 6830 idx_insert = idx_insert_first + 1; 6831 } 6832 } 6833 6834 // always read samples from chain input buffer 6835 effect->setInBuffer(mInBuffer); 6836 6837 // if last effect in the chain, output samples to chain 6838 // output buffer, otherwise to chain input buffer 6839 if (idx_insert == size) { 6840 if (idx_insert != 0) { 6841 mEffects[idx_insert-1]->setOutBuffer(mInBuffer); 6842 mEffects[idx_insert-1]->configure(); 6843 } 6844 effect->setOutBuffer(mOutBuffer); 6845 } else { 6846 effect->setOutBuffer(mInBuffer); 6847 } 6848 mEffects.insertAt(effect, idx_insert); 6849 6850 LOGV("addEffect_l() effect %p, added in chain %p at rank %d", effect.get(), this, idx_insert); 6851 } 6852 effect->configure(); 6853 return NO_ERROR; 6854} 6855 6856// removeEffect_l() must be called with PlaybackThread::mLock held 6857size_t AudioFlinger::EffectChain::removeEffect_l(const sp<EffectModule>& effect) 6858{ 6859 Mutex::Autolock _l(mLock); 6860 int size = (int)mEffects.size(); 6861 int i; 6862 uint32_t type = effect->desc().flags & EFFECT_FLAG_TYPE_MASK; 6863 6864 for (i = 0; i < size; i++) { 6865 if (effect == mEffects[i]) { 6866 // calling stop here will remove pre-processing effect from the audio HAL. 6867 // This is safe as we hold the EffectChain mutex which guarantees that we are not in 6868 // the middle of a read from audio HAL 6869 mEffects[i]->stop(); 6870 if (type == EFFECT_FLAG_TYPE_AUXILIARY) { 6871 delete[] effect->inBuffer(); 6872 } else { 6873 if (i == size - 1 && i != 0) { 6874 mEffects[i - 1]->setOutBuffer(mOutBuffer); 6875 mEffects[i - 1]->configure(); 6876 } 6877 } 6878 mEffects.removeAt(i); 6879 LOGV("removeEffect_l() effect %p, removed from chain %p at rank %d", effect.get(), this, i); 6880 break; 6881 } 6882 } 6883 6884 return mEffects.size(); 6885} 6886 6887// setDevice_l() must be called with PlaybackThread::mLock held 6888void AudioFlinger::EffectChain::setDevice_l(uint32_t device) 6889{ 6890 size_t size = mEffects.size(); 6891 for (size_t i = 0; i < size; i++) { 6892 mEffects[i]->setDevice(device); 6893 } 6894} 6895 6896// setMode_l() must be called with PlaybackThread::mLock held 6897void AudioFlinger::EffectChain::setMode_l(uint32_t mode) 6898{ 6899 size_t size = mEffects.size(); 6900 for (size_t i = 0; i < size; i++) { 6901 mEffects[i]->setMode(mode); 6902 } 6903} 6904 6905// setVolume_l() must be called with PlaybackThread::mLock held 6906bool AudioFlinger::EffectChain::setVolume_l(uint32_t *left, uint32_t *right) 6907{ 6908 uint32_t newLeft = *left; 6909 uint32_t newRight = *right; 6910 bool hasControl = false; 6911 int ctrlIdx = -1; 6912 size_t size = mEffects.size(); 6913 6914 // first update volume controller 6915 for (size_t i = size; i > 0; i--) { 6916 if (mEffects[i - 1]->isProcessEnabled() && 6917 (mEffects[i - 1]->desc().flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL) { 6918 ctrlIdx = i - 1; 6919 hasControl = true; 6920 break; 6921 } 6922 } 6923 6924 if (ctrlIdx == mVolumeCtrlIdx && *left == mLeftVolume && *right == mRightVolume) { 6925 if (hasControl) { 6926 *left = mNewLeftVolume; 6927 *right = mNewRightVolume; 6928 } 6929 return hasControl; 6930 } 6931 6932 mVolumeCtrlIdx = ctrlIdx; 6933 mLeftVolume = newLeft; 6934 mRightVolume = newRight; 6935 6936 // second get volume update from volume controller 6937 if (ctrlIdx >= 0) { 6938 mEffects[ctrlIdx]->setVolume(&newLeft, &newRight, true); 6939 mNewLeftVolume = newLeft; 6940 mNewRightVolume = newRight; 6941 } 6942 // then indicate volume to all other effects in chain. 6943 // Pass altered volume to effects before volume controller 6944 // and requested volume to effects after controller 6945 uint32_t lVol = newLeft; 6946 uint32_t rVol = newRight; 6947 6948 for (size_t i = 0; i < size; i++) { 6949 if ((int)i == ctrlIdx) continue; 6950 // this also works for ctrlIdx == -1 when there is no volume controller 6951 if ((int)i > ctrlIdx) { 6952 lVol = *left; 6953 rVol = *right; 6954 } 6955 mEffects[i]->setVolume(&lVol, &rVol, false); 6956 } 6957 *left = newLeft; 6958 *right = newRight; 6959 6960 return hasControl; 6961} 6962 6963status_t AudioFlinger::EffectChain::dump(int fd, const Vector<String16>& args) 6964{ 6965 const size_t SIZE = 256; 6966 char buffer[SIZE]; 6967 String8 result; 6968 6969 snprintf(buffer, SIZE, "Effects for session %d:\n", mSessionId); 6970 result.append(buffer); 6971 6972 bool locked = tryLock(mLock); 6973 // failed to lock - AudioFlinger is probably deadlocked 6974 if (!locked) { 6975 result.append("\tCould not lock mutex:\n"); 6976 } 6977 6978 result.append("\tNum fx In buffer Out buffer Active tracks:\n"); 6979 snprintf(buffer, SIZE, "\t%02d 0x%08x 0x%08x %d\n", 6980 mEffects.size(), 6981 (uint32_t)mInBuffer, 6982 (uint32_t)mOutBuffer, 6983 mActiveTrackCnt); 6984 result.append(buffer); 6985 write(fd, result.string(), result.size()); 6986 6987 for (size_t i = 0; i < mEffects.size(); ++i) { 6988 sp<EffectModule> effect = mEffects[i]; 6989 if (effect != 0) { 6990 effect->dump(fd, args); 6991 } 6992 } 6993 6994 if (locked) { 6995 mLock.unlock(); 6996 } 6997 6998 return NO_ERROR; 6999} 7000 7001// must be called with ThreadBase::mLock held 7002void AudioFlinger::EffectChain::setEffectSuspended_l( 7003 const effect_uuid_t *type, bool suspend) 7004{ 7005 sp<SuspendedEffectDesc> desc; 7006 // use effect type UUID timelow as key as there is no real risk of identical 7007 // timeLow fields among effect type UUIDs. 7008 int index = mSuspendedEffects.indexOfKey(type->timeLow); 7009 if (suspend) { 7010 if (index >= 0) { 7011 desc = mSuspendedEffects.valueAt(index); 7012 } else { 7013 desc = new SuspendedEffectDesc(); 7014 memcpy(&desc->mType, type, sizeof(effect_uuid_t)); 7015 mSuspendedEffects.add(type->timeLow, desc); 7016 LOGV("setEffectSuspended_l() add entry for %08x", type->timeLow); 7017 } 7018 if (desc->mRefCount++ == 0) { 7019 sp<EffectModule> effect = getEffectIfEnabled(type); 7020 if (effect != 0) { 7021 desc->mEffect = effect; 7022 effect->setSuspended(true); 7023 effect->setEnabled(false); 7024 } 7025 } 7026 } else { 7027 if (index < 0) { 7028 return; 7029 } 7030 desc = mSuspendedEffects.valueAt(index); 7031 if (desc->mRefCount <= 0) { 7032 LOGW("setEffectSuspended_l() restore refcount should not be 0 %d", desc->mRefCount); 7033 desc->mRefCount = 1; 7034 } 7035 if (--desc->mRefCount == 0) { 7036 LOGV("setEffectSuspended_l() remove entry for %08x", mSuspendedEffects.keyAt(index)); 7037 if (desc->mEffect != 0) { 7038 sp<EffectModule> effect = desc->mEffect.promote(); 7039 if (effect != 0) { 7040 effect->setSuspended(false); 7041 sp<EffectHandle> handle = effect->controlHandle(); 7042 if (handle != 0) { 7043 effect->setEnabled(handle->enabled()); 7044 } 7045 } 7046 desc->mEffect.clear(); 7047 } 7048 mSuspendedEffects.removeItemsAt(index); 7049 } 7050 } 7051} 7052 7053// must be called with ThreadBase::mLock held 7054void AudioFlinger::EffectChain::setEffectSuspendedAll_l(bool suspend) 7055{ 7056 sp<SuspendedEffectDesc> desc; 7057 7058 int index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll); 7059 if (suspend) { 7060 if (index >= 0) { 7061 desc = mSuspendedEffects.valueAt(index); 7062 } else { 7063 desc = new SuspendedEffectDesc(); 7064 mSuspendedEffects.add((int)kKeyForSuspendAll, desc); 7065 LOGV("setEffectSuspendedAll_l() add entry for 0"); 7066 } 7067 if (desc->mRefCount++ == 0) { 7068 Vector< sp<EffectModule> > effects = getSuspendEligibleEffects(); 7069 for (size_t i = 0; i < effects.size(); i++) { 7070 setEffectSuspended_l(&effects[i]->desc().type, true); 7071 } 7072 } 7073 } else { 7074 if (index < 0) { 7075 return; 7076 } 7077 desc = mSuspendedEffects.valueAt(index); 7078 if (desc->mRefCount <= 0) { 7079 LOGW("setEffectSuspendedAll_l() restore refcount should not be 0 %d", desc->mRefCount); 7080 desc->mRefCount = 1; 7081 } 7082 if (--desc->mRefCount == 0) { 7083 Vector<const effect_uuid_t *> types; 7084 for (size_t i = 0; i < mSuspendedEffects.size(); i++) { 7085 if (mSuspendedEffects.keyAt(i) == (int)kKeyForSuspendAll) { 7086 continue; 7087 } 7088 types.add(&mSuspendedEffects.valueAt(i)->mType); 7089 } 7090 for (size_t i = 0; i < types.size(); i++) { 7091 setEffectSuspended_l(types[i], false); 7092 } 7093 LOGV("setEffectSuspendedAll_l() remove entry for %08x", mSuspendedEffects.keyAt(index)); 7094 mSuspendedEffects.removeItem((int)kKeyForSuspendAll); 7095 } 7096 } 7097} 7098 7099Vector< sp<AudioFlinger::EffectModule> > AudioFlinger::EffectChain::getSuspendEligibleEffects() 7100{ 7101 Vector< sp<EffectModule> > effects; 7102 for (size_t i = 0; i < mEffects.size(); i++) { 7103 effect_descriptor_t desc = mEffects[i]->desc(); 7104 // auxiliary effects and vizualizer are never suspended on output mix 7105 if ((mSessionId == AUDIO_SESSION_OUTPUT_MIX) && ( 7106 ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) || 7107 (memcmp(&desc.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0))) { 7108 continue; 7109 } 7110 effects.add(mEffects[i]); 7111 } 7112 return effects; 7113} 7114 7115sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectIfEnabled( 7116 const effect_uuid_t *type) 7117{ 7118 sp<EffectModule> effect; 7119 effect = getEffectFromType_l(type); 7120 if (effect != 0 && !effect->isEnabled()) { 7121 effect.clear(); 7122 } 7123 return effect; 7124} 7125 7126void AudioFlinger::EffectChain::checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, 7127 bool enabled) 7128{ 7129 int index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow); 7130 if (enabled) { 7131 if (index < 0) { 7132 // if the effect is not suspend check if all effects are suspended 7133 index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll); 7134 if (index < 0) { 7135 return; 7136 } 7137 setEffectSuspended_l(&effect->desc().type, enabled); 7138 index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow); 7139 } 7140 LOGV("checkSuspendOnEffectEnabled() enable suspending fx %08x", 7141 effect->desc().type.timeLow); 7142 sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index); 7143 // if effect is requested to suspended but was not yet enabled, supend it now. 7144 if (desc->mEffect == 0) { 7145 desc->mEffect = effect; 7146 effect->setEnabled(false); 7147 effect->setSuspended(true); 7148 } 7149 } else { 7150 if (index < 0) { 7151 return; 7152 } 7153 LOGV("checkSuspendOnEffectEnabled() disable restoring fx %08x", 7154 effect->desc().type.timeLow); 7155 sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index); 7156 desc->mEffect.clear(); 7157 effect->setSuspended(false); 7158 } 7159} 7160 7161#undef LOG_TAG 7162#define LOG_TAG "AudioFlinger" 7163 7164// ---------------------------------------------------------------------------- 7165 7166status_t AudioFlinger::onTransact( 7167 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 7168{ 7169 return BnAudioFlinger::onTransact(code, data, reply, flags); 7170} 7171 7172}; // namespace android 7173