AudioFlinger.cpp revision c3e6572e0ff535932b1f6ffb7bcf5acd891675fb
1/* //device/include/server/AudioFlinger/AudioFlinger.cpp 2** 3** Copyright 2007, The Android Open Source Project 4** 5** Licensed under the Apache License, Version 2.0 (the "License"); 6** you may not use this file except in compliance with the License. 7** You may obtain a copy of the License at 8** 9** http://www.apache.org/licenses/LICENSE-2.0 10** 11** Unless required by applicable law or agreed to in writing, software 12** distributed under the License is distributed on an "AS IS" BASIS, 13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14** See the License for the specific language governing permissions and 15** limitations under the License. 16*/ 17 18 19#define LOG_TAG "AudioFlinger" 20//#define LOG_NDEBUG 0 21 22#include <math.h> 23#include <signal.h> 24#include <sys/time.h> 25#include <sys/resource.h> 26 27#include <binder/IPCThreadState.h> 28#include <binder/IServiceManager.h> 29#include <utils/Log.h> 30#include <binder/Parcel.h> 31#include <binder/IPCThreadState.h> 32#include <utils/String16.h> 33#include <utils/threads.h> 34#include <utils/Atomic.h> 35 36#include <cutils/bitops.h> 37#include <cutils/properties.h> 38 39#include <media/AudioTrack.h> 40#include <media/AudioRecord.h> 41#include <media/IMediaPlayerService.h> 42 43#include <private/media/AudioTrackShared.h> 44#include <private/media/AudioEffectShared.h> 45 46#include <system/audio.h> 47#include <hardware/audio.h> 48 49#include "AudioMixer.h" 50#include "AudioFlinger.h" 51 52#include <media/EffectsFactoryApi.h> 53#include <audio_effects/effect_visualizer.h> 54#include <audio_effects/effect_ns.h> 55#include <audio_effects/effect_aec.h> 56 57#include <cpustats/ThreadCpuUsage.h> 58#include <powermanager/PowerManager.h> 59// #define DEBUG_CPU_USAGE 10 // log statistics every n wall clock seconds 60 61// ---------------------------------------------------------------------------- 62 63 64namespace android { 65 66static const char* kDeadlockedString = "AudioFlinger may be deadlocked\n"; 67static const char* kHardwareLockedString = "Hardware lock is taken\n"; 68 69//static const nsecs_t kStandbyTimeInNsecs = seconds(3); 70static const float MAX_GAIN = 4096.0f; 71static const float MAX_GAIN_INT = 0x1000; 72 73// retry counts for buffer fill timeout 74// 50 * ~20msecs = 1 second 75static const int8_t kMaxTrackRetries = 50; 76static const int8_t kMaxTrackStartupRetries = 50; 77// allow less retry attempts on direct output thread. 78// direct outputs can be a scarce resource in audio hardware and should 79// be released as quickly as possible. 80static const int8_t kMaxTrackRetriesDirect = 2; 81 82static const int kDumpLockRetries = 50; 83static const int kDumpLockSleep = 20000; 84 85static const nsecs_t kWarningThrottle = seconds(5); 86 87// RecordThread loop sleep time upon application overrun or audio HAL read error 88static const int kRecordThreadSleepUs = 5000; 89 90// ---------------------------------------------------------------------------- 91 92static bool recordingAllowed() { 93 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 94 bool ok = checkCallingPermission(String16("android.permission.RECORD_AUDIO")); 95 if (!ok) LOGE("Request requires android.permission.RECORD_AUDIO"); 96 return ok; 97} 98 99static bool settingsAllowed() { 100 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 101 bool ok = checkCallingPermission(String16("android.permission.MODIFY_AUDIO_SETTINGS")); 102 if (!ok) LOGE("Request requires android.permission.MODIFY_AUDIO_SETTINGS"); 103 return ok; 104} 105 106// To collect the amplifier usage 107static void addBatteryData(uint32_t params) { 108 sp<IBinder> binder = 109 defaultServiceManager()->getService(String16("media.player")); 110 sp<IMediaPlayerService> service = interface_cast<IMediaPlayerService>(binder); 111 if (service.get() == NULL) { 112 LOGW("Cannot connect to the MediaPlayerService for battery tracking"); 113 return; 114 } 115 116 service->addBatteryData(params); 117} 118 119static int load_audio_interface(const char *if_name, const hw_module_t **mod, 120 audio_hw_device_t **dev) 121{ 122 int rc; 123 124 rc = hw_get_module_by_class(AUDIO_HARDWARE_MODULE_ID, if_name, mod); 125 if (rc) 126 goto out; 127 128 rc = audio_hw_device_open(*mod, dev); 129 LOGE_IF(rc, "couldn't open audio hw device in %s.%s (%s)", 130 AUDIO_HARDWARE_MODULE_ID, if_name, strerror(-rc)); 131 if (rc) 132 goto out; 133 134 return 0; 135 136out: 137 *mod = NULL; 138 *dev = NULL; 139 return rc; 140} 141 142static const char *audio_interfaces[] = { 143 "primary", 144 "a2dp", 145 "usb", 146}; 147#define ARRAY_SIZE(x) (sizeof((x))/sizeof(((x)[0]))) 148 149// ---------------------------------------------------------------------------- 150 151AudioFlinger::AudioFlinger() 152 : BnAudioFlinger(), 153 mPrimaryHardwareDev(0), mMasterVolume(1.0f), mMasterMute(false), mNextUniqueId(1), 154 mBtNrec(false) 155{ 156} 157 158void AudioFlinger::onFirstRef() 159{ 160 int rc = 0; 161 162 Mutex::Autolock _l(mLock); 163 164 /* TODO: move all this work into an Init() function */ 165 mHardwareStatus = AUDIO_HW_IDLE; 166 167 for (size_t i = 0; i < ARRAY_SIZE(audio_interfaces); i++) { 168 const hw_module_t *mod; 169 audio_hw_device_t *dev; 170 171 rc = load_audio_interface(audio_interfaces[i], &mod, &dev); 172 if (rc) 173 continue; 174 175 LOGI("Loaded %s audio interface from %s (%s)", audio_interfaces[i], 176 mod->name, mod->id); 177 mAudioHwDevs.push(dev); 178 179 if (!mPrimaryHardwareDev) { 180 mPrimaryHardwareDev = dev; 181 LOGI("Using '%s' (%s.%s) as the primary audio interface", 182 mod->name, mod->id, audio_interfaces[i]); 183 } 184 } 185 186 mHardwareStatus = AUDIO_HW_INIT; 187 188 if (!mPrimaryHardwareDev || mAudioHwDevs.size() == 0) { 189 LOGE("Primary audio interface not found"); 190 return; 191 } 192 193 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 194 audio_hw_device_t *dev = mAudioHwDevs[i]; 195 196 mHardwareStatus = AUDIO_HW_INIT; 197 rc = dev->init_check(dev); 198 if (rc == 0) { 199 AutoMutex lock(mHardwareLock); 200 201 mMode = AUDIO_MODE_NORMAL; 202 mHardwareStatus = AUDIO_HW_SET_MODE; 203 dev->set_mode(dev, mMode); 204 mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME; 205 dev->set_master_volume(dev, 1.0f); 206 mHardwareStatus = AUDIO_HW_IDLE; 207 } 208 } 209} 210 211status_t AudioFlinger::initCheck() const 212{ 213 Mutex::Autolock _l(mLock); 214 if (mPrimaryHardwareDev == NULL || mAudioHwDevs.size() == 0) 215 return NO_INIT; 216 return NO_ERROR; 217} 218 219AudioFlinger::~AudioFlinger() 220{ 221 int num_devs = mAudioHwDevs.size(); 222 223 while (!mRecordThreads.isEmpty()) { 224 // closeInput() will remove first entry from mRecordThreads 225 closeInput(mRecordThreads.keyAt(0)); 226 } 227 while (!mPlaybackThreads.isEmpty()) { 228 // closeOutput() will remove first entry from mPlaybackThreads 229 closeOutput(mPlaybackThreads.keyAt(0)); 230 } 231 232 for (int i = 0; i < num_devs; i++) { 233 audio_hw_device_t *dev = mAudioHwDevs[i]; 234 audio_hw_device_close(dev); 235 } 236 mAudioHwDevs.clear(); 237} 238 239audio_hw_device_t* AudioFlinger::findSuitableHwDev_l(uint32_t devices) 240{ 241 /* first matching HW device is returned */ 242 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 243 audio_hw_device_t *dev = mAudioHwDevs[i]; 244 if ((dev->get_supported_devices(dev) & devices) == devices) 245 return dev; 246 } 247 return NULL; 248} 249 250status_t AudioFlinger::dumpClients(int fd, const Vector<String16>& args) 251{ 252 const size_t SIZE = 256; 253 char buffer[SIZE]; 254 String8 result; 255 256 result.append("Clients:\n"); 257 for (size_t i = 0; i < mClients.size(); ++i) { 258 wp<Client> wClient = mClients.valueAt(i); 259 if (wClient != 0) { 260 sp<Client> client = wClient.promote(); 261 if (client != 0) { 262 snprintf(buffer, SIZE, " pid: %d\n", client->pid()); 263 result.append(buffer); 264 } 265 } 266 } 267 write(fd, result.string(), result.size()); 268 return NO_ERROR; 269} 270 271 272status_t AudioFlinger::dumpInternals(int fd, const Vector<String16>& args) 273{ 274 const size_t SIZE = 256; 275 char buffer[SIZE]; 276 String8 result; 277 int hardwareStatus = mHardwareStatus; 278 279 snprintf(buffer, SIZE, "Hardware status: %d\n", hardwareStatus); 280 result.append(buffer); 281 write(fd, result.string(), result.size()); 282 return NO_ERROR; 283} 284 285status_t AudioFlinger::dumpPermissionDenial(int fd, const Vector<String16>& args) 286{ 287 const size_t SIZE = 256; 288 char buffer[SIZE]; 289 String8 result; 290 snprintf(buffer, SIZE, "Permission Denial: " 291 "can't dump AudioFlinger from pid=%d, uid=%d\n", 292 IPCThreadState::self()->getCallingPid(), 293 IPCThreadState::self()->getCallingUid()); 294 result.append(buffer); 295 write(fd, result.string(), result.size()); 296 return NO_ERROR; 297} 298 299static bool tryLock(Mutex& mutex) 300{ 301 bool locked = false; 302 for (int i = 0; i < kDumpLockRetries; ++i) { 303 if (mutex.tryLock() == NO_ERROR) { 304 locked = true; 305 break; 306 } 307 usleep(kDumpLockSleep); 308 } 309 return locked; 310} 311 312status_t AudioFlinger::dump(int fd, const Vector<String16>& args) 313{ 314 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 315 dumpPermissionDenial(fd, args); 316 } else { 317 // get state of hardware lock 318 bool hardwareLocked = tryLock(mHardwareLock); 319 if (!hardwareLocked) { 320 String8 result(kHardwareLockedString); 321 write(fd, result.string(), result.size()); 322 } else { 323 mHardwareLock.unlock(); 324 } 325 326 bool locked = tryLock(mLock); 327 328 // failed to lock - AudioFlinger is probably deadlocked 329 if (!locked) { 330 String8 result(kDeadlockedString); 331 write(fd, result.string(), result.size()); 332 } 333 334 dumpClients(fd, args); 335 dumpInternals(fd, args); 336 337 // dump playback threads 338 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 339 mPlaybackThreads.valueAt(i)->dump(fd, args); 340 } 341 342 // dump record threads 343 for (size_t i = 0; i < mRecordThreads.size(); i++) { 344 mRecordThreads.valueAt(i)->dump(fd, args); 345 } 346 347 // dump all hardware devs 348 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 349 audio_hw_device_t *dev = mAudioHwDevs[i]; 350 dev->dump(dev, fd); 351 } 352 if (locked) mLock.unlock(); 353 } 354 return NO_ERROR; 355} 356 357 358// IAudioFlinger interface 359 360 361sp<IAudioTrack> AudioFlinger::createTrack( 362 pid_t pid, 363 int streamType, 364 uint32_t sampleRate, 365 uint32_t format, 366 uint32_t channelMask, 367 int frameCount, 368 uint32_t flags, 369 const sp<IMemory>& sharedBuffer, 370 int output, 371 int *sessionId, 372 status_t *status) 373{ 374 sp<PlaybackThread::Track> track; 375 sp<TrackHandle> trackHandle; 376 sp<Client> client; 377 wp<Client> wclient; 378 status_t lStatus; 379 int lSessionId; 380 381 if (streamType >= AUDIO_STREAM_CNT) { 382 LOGE("invalid stream type"); 383 lStatus = BAD_VALUE; 384 goto Exit; 385 } 386 387 { 388 Mutex::Autolock _l(mLock); 389 PlaybackThread *thread = checkPlaybackThread_l(output); 390 PlaybackThread *effectThread = NULL; 391 if (thread == NULL) { 392 LOGE("unknown output thread"); 393 lStatus = BAD_VALUE; 394 goto Exit; 395 } 396 397 wclient = mClients.valueFor(pid); 398 399 if (wclient != NULL) { 400 client = wclient.promote(); 401 } else { 402 client = new Client(this, pid); 403 mClients.add(pid, client); 404 } 405 406 LOGV("createTrack() sessionId: %d", (sessionId == NULL) ? -2 : *sessionId); 407 if (sessionId != NULL && *sessionId != AUDIO_SESSION_OUTPUT_MIX) { 408 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 409 sp<PlaybackThread> t = mPlaybackThreads.valueAt(i); 410 if (mPlaybackThreads.keyAt(i) != output) { 411 // prevent same audio session on different output threads 412 uint32_t sessions = t->hasAudioSession(*sessionId); 413 if (sessions & PlaybackThread::TRACK_SESSION) { 414 lStatus = BAD_VALUE; 415 goto Exit; 416 } 417 // check if an effect with same session ID is waiting for a track to be created 418 if (sessions & PlaybackThread::EFFECT_SESSION) { 419 effectThread = t.get(); 420 } 421 } 422 } 423 lSessionId = *sessionId; 424 } else { 425 // if no audio session id is provided, create one here 426 lSessionId = nextUniqueId(); 427 if (sessionId != NULL) { 428 *sessionId = lSessionId; 429 } 430 } 431 LOGV("createTrack() lSessionId: %d", lSessionId); 432 433 track = thread->createTrack_l(client, streamType, sampleRate, format, 434 channelMask, frameCount, sharedBuffer, lSessionId, &lStatus); 435 436 // move effect chain to this output thread if an effect on same session was waiting 437 // for a track to be created 438 if (lStatus == NO_ERROR && effectThread != NULL) { 439 Mutex::Autolock _dl(thread->mLock); 440 Mutex::Autolock _sl(effectThread->mLock); 441 moveEffectChain_l(lSessionId, effectThread, thread, true); 442 } 443 } 444 if (lStatus == NO_ERROR) { 445 trackHandle = new TrackHandle(track); 446 } else { 447 // remove local strong reference to Client before deleting the Track so that the Client 448 // destructor is called by the TrackBase destructor with mLock held 449 client.clear(); 450 track.clear(); 451 } 452 453Exit: 454 if(status) { 455 *status = lStatus; 456 } 457 return trackHandle; 458} 459 460uint32_t AudioFlinger::sampleRate(int output) const 461{ 462 Mutex::Autolock _l(mLock); 463 PlaybackThread *thread = checkPlaybackThread_l(output); 464 if (thread == NULL) { 465 LOGW("sampleRate() unknown thread %d", output); 466 return 0; 467 } 468 return thread->sampleRate(); 469} 470 471int AudioFlinger::channelCount(int output) const 472{ 473 Mutex::Autolock _l(mLock); 474 PlaybackThread *thread = checkPlaybackThread_l(output); 475 if (thread == NULL) { 476 LOGW("channelCount() unknown thread %d", output); 477 return 0; 478 } 479 return thread->channelCount(); 480} 481 482uint32_t AudioFlinger::format(int output) const 483{ 484 Mutex::Autolock _l(mLock); 485 PlaybackThread *thread = checkPlaybackThread_l(output); 486 if (thread == NULL) { 487 LOGW("format() unknown thread %d", output); 488 return 0; 489 } 490 return thread->format(); 491} 492 493size_t AudioFlinger::frameCount(int output) const 494{ 495 Mutex::Autolock _l(mLock); 496 PlaybackThread *thread = checkPlaybackThread_l(output); 497 if (thread == NULL) { 498 LOGW("frameCount() unknown thread %d", output); 499 return 0; 500 } 501 return thread->frameCount(); 502} 503 504uint32_t AudioFlinger::latency(int output) const 505{ 506 Mutex::Autolock _l(mLock); 507 PlaybackThread *thread = checkPlaybackThread_l(output); 508 if (thread == NULL) { 509 LOGW("latency() unknown thread %d", output); 510 return 0; 511 } 512 return thread->latency(); 513} 514 515status_t AudioFlinger::setMasterVolume(float value) 516{ 517 // check calling permissions 518 if (!settingsAllowed()) { 519 return PERMISSION_DENIED; 520 } 521 522 // when hw supports master volume, don't scale in sw mixer 523 { // scope for the lock 524 AutoMutex lock(mHardwareLock); 525 mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME; 526 if (mPrimaryHardwareDev->set_master_volume(mPrimaryHardwareDev, value) == NO_ERROR) { 527 value = 1.0f; 528 } 529 mHardwareStatus = AUDIO_HW_IDLE; 530 } 531 532 Mutex::Autolock _l(mLock); 533 mMasterVolume = value; 534 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 535 mPlaybackThreads.valueAt(i)->setMasterVolume(value); 536 537 return NO_ERROR; 538} 539 540status_t AudioFlinger::setMode(int mode) 541{ 542 status_t ret; 543 544 // check calling permissions 545 if (!settingsAllowed()) { 546 return PERMISSION_DENIED; 547 } 548 if ((mode < 0) || (mode >= AUDIO_MODE_CNT)) { 549 LOGW("Illegal value: setMode(%d)", mode); 550 return BAD_VALUE; 551 } 552 553 { // scope for the lock 554 AutoMutex lock(mHardwareLock); 555 mHardwareStatus = AUDIO_HW_SET_MODE; 556 ret = mPrimaryHardwareDev->set_mode(mPrimaryHardwareDev, mode); 557 mHardwareStatus = AUDIO_HW_IDLE; 558 } 559 560 if (NO_ERROR == ret) { 561 Mutex::Autolock _l(mLock); 562 mMode = mode; 563 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 564 mPlaybackThreads.valueAt(i)->setMode(mode); 565 } 566 567 return ret; 568} 569 570status_t AudioFlinger::setMicMute(bool state) 571{ 572 // check calling permissions 573 if (!settingsAllowed()) { 574 return PERMISSION_DENIED; 575 } 576 577 AutoMutex lock(mHardwareLock); 578 mHardwareStatus = AUDIO_HW_SET_MIC_MUTE; 579 status_t ret = mPrimaryHardwareDev->set_mic_mute(mPrimaryHardwareDev, state); 580 mHardwareStatus = AUDIO_HW_IDLE; 581 return ret; 582} 583 584bool AudioFlinger::getMicMute() const 585{ 586 bool state = AUDIO_MODE_INVALID; 587 mHardwareStatus = AUDIO_HW_GET_MIC_MUTE; 588 mPrimaryHardwareDev->get_mic_mute(mPrimaryHardwareDev, &state); 589 mHardwareStatus = AUDIO_HW_IDLE; 590 return state; 591} 592 593status_t AudioFlinger::setMasterMute(bool muted) 594{ 595 // check calling permissions 596 if (!settingsAllowed()) { 597 return PERMISSION_DENIED; 598 } 599 600 Mutex::Autolock _l(mLock); 601 mMasterMute = muted; 602 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 603 mPlaybackThreads.valueAt(i)->setMasterMute(muted); 604 605 return NO_ERROR; 606} 607 608float AudioFlinger::masterVolume() const 609{ 610 return mMasterVolume; 611} 612 613bool AudioFlinger::masterMute() const 614{ 615 return mMasterMute; 616} 617 618status_t AudioFlinger::setStreamVolume(int stream, float value, int output) 619{ 620 // check calling permissions 621 if (!settingsAllowed()) { 622 return PERMISSION_DENIED; 623 } 624 625 if (stream < 0 || uint32_t(stream) >= AUDIO_STREAM_CNT) { 626 return BAD_VALUE; 627 } 628 629 AutoMutex lock(mLock); 630 PlaybackThread *thread = NULL; 631 if (output) { 632 thread = checkPlaybackThread_l(output); 633 if (thread == NULL) { 634 return BAD_VALUE; 635 } 636 } 637 638 mStreamTypes[stream].volume = value; 639 640 if (thread == NULL) { 641 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) { 642 mPlaybackThreads.valueAt(i)->setStreamVolume(stream, value); 643 } 644 } else { 645 thread->setStreamVolume(stream, value); 646 } 647 648 return NO_ERROR; 649} 650 651status_t AudioFlinger::setStreamMute(int stream, bool muted) 652{ 653 // check calling permissions 654 if (!settingsAllowed()) { 655 return PERMISSION_DENIED; 656 } 657 658 if (stream < 0 || uint32_t(stream) >= AUDIO_STREAM_CNT || 659 uint32_t(stream) == AUDIO_STREAM_ENFORCED_AUDIBLE) { 660 return BAD_VALUE; 661 } 662 663 AutoMutex lock(mLock); 664 mStreamTypes[stream].mute = muted; 665 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 666 mPlaybackThreads.valueAt(i)->setStreamMute(stream, muted); 667 668 return NO_ERROR; 669} 670 671float AudioFlinger::streamVolume(int stream, int output) const 672{ 673 if (stream < 0 || uint32_t(stream) >= AUDIO_STREAM_CNT) { 674 return 0.0f; 675 } 676 677 AutoMutex lock(mLock); 678 float volume; 679 if (output) { 680 PlaybackThread *thread = checkPlaybackThread_l(output); 681 if (thread == NULL) { 682 return 0.0f; 683 } 684 volume = thread->streamVolume(stream); 685 } else { 686 volume = mStreamTypes[stream].volume; 687 } 688 689 return volume; 690} 691 692bool AudioFlinger::streamMute(int stream) const 693{ 694 if (stream < 0 || stream >= (int)AUDIO_STREAM_CNT) { 695 return true; 696 } 697 698 return mStreamTypes[stream].mute; 699} 700 701status_t AudioFlinger::setParameters(int ioHandle, const String8& keyValuePairs) 702{ 703 status_t result; 704 705 LOGV("setParameters(): io %d, keyvalue %s, tid %d, calling tid %d", 706 ioHandle, keyValuePairs.string(), gettid(), IPCThreadState::self()->getCallingPid()); 707 // check calling permissions 708 if (!settingsAllowed()) { 709 return PERMISSION_DENIED; 710 } 711 712 // ioHandle == 0 means the parameters are global to the audio hardware interface 713 if (ioHandle == 0) { 714 AutoMutex lock(mHardwareLock); 715 mHardwareStatus = AUDIO_SET_PARAMETER; 716 status_t final_result = NO_ERROR; 717 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 718 audio_hw_device_t *dev = mAudioHwDevs[i]; 719 result = dev->set_parameters(dev, keyValuePairs.string()); 720 final_result = result ?: final_result; 721 } 722 mHardwareStatus = AUDIO_HW_IDLE; 723 // disable AEC and NS if the device is a BT SCO headset supporting those pre processings 724 AudioParameter param = AudioParameter(keyValuePairs); 725 String8 value; 726 if (param.get(String8(AUDIO_PARAMETER_KEY_BT_NREC), value) == NO_ERROR) { 727 Mutex::Autolock _l(mLock); 728 bool btNrec = (value == AUDIO_PARAMETER_VALUE_ON); 729 if (mBtNrec != btNrec) { 730 for (size_t i = 0; i < mRecordThreads.size(); i++) { 731 sp<RecordThread> thread = mRecordThreads.valueAt(i); 732 RecordThread::RecordTrack *track = thread->track(); 733 if (track != NULL) { 734 audio_devices_t device = (audio_devices_t)( 735 thread->device() & AUDIO_DEVICE_IN_ALL); 736 bool suspend = audio_is_bluetooth_sco_device(device) && btNrec; 737 thread->setEffectSuspended(FX_IID_AEC, 738 suspend, 739 track->sessionId()); 740 thread->setEffectSuspended(FX_IID_NS, 741 suspend, 742 track->sessionId()); 743 } 744 } 745 mBtNrec = btNrec; 746 } 747 } 748 return final_result; 749 } 750 751 // hold a strong ref on thread in case closeOutput() or closeInput() is called 752 // and the thread is exited once the lock is released 753 sp<ThreadBase> thread; 754 { 755 Mutex::Autolock _l(mLock); 756 thread = checkPlaybackThread_l(ioHandle); 757 if (thread == NULL) { 758 thread = checkRecordThread_l(ioHandle); 759 } else if (thread.get() == primaryPlaybackThread_l()) { 760 // indicate output device change to all input threads for pre processing 761 AudioParameter param = AudioParameter(keyValuePairs); 762 int value; 763 if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) { 764 for (size_t i = 0; i < mRecordThreads.size(); i++) { 765 mRecordThreads.valueAt(i)->setParameters(keyValuePairs); 766 } 767 } 768 } 769 } 770 if (thread != NULL) { 771 result = thread->setParameters(keyValuePairs); 772 return result; 773 } 774 return BAD_VALUE; 775} 776 777String8 AudioFlinger::getParameters(int ioHandle, const String8& keys) 778{ 779// LOGV("getParameters() io %d, keys %s, tid %d, calling tid %d", 780// ioHandle, keys.string(), gettid(), IPCThreadState::self()->getCallingPid()); 781 782 if (ioHandle == 0) { 783 String8 out_s8; 784 785 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 786 audio_hw_device_t *dev = mAudioHwDevs[i]; 787 char *s = dev->get_parameters(dev, keys.string()); 788 out_s8 += String8(s); 789 free(s); 790 } 791 return out_s8; 792 } 793 794 Mutex::Autolock _l(mLock); 795 796 PlaybackThread *playbackThread = checkPlaybackThread_l(ioHandle); 797 if (playbackThread != NULL) { 798 return playbackThread->getParameters(keys); 799 } 800 RecordThread *recordThread = checkRecordThread_l(ioHandle); 801 if (recordThread != NULL) { 802 return recordThread->getParameters(keys); 803 } 804 return String8(""); 805} 806 807size_t AudioFlinger::getInputBufferSize(uint32_t sampleRate, int format, int channelCount) 808{ 809 return mPrimaryHardwareDev->get_input_buffer_size(mPrimaryHardwareDev, sampleRate, format, channelCount); 810} 811 812unsigned int AudioFlinger::getInputFramesLost(int ioHandle) 813{ 814 if (ioHandle == 0) { 815 return 0; 816 } 817 818 Mutex::Autolock _l(mLock); 819 820 RecordThread *recordThread = checkRecordThread_l(ioHandle); 821 if (recordThread != NULL) { 822 return recordThread->getInputFramesLost(); 823 } 824 return 0; 825} 826 827status_t AudioFlinger::setVoiceVolume(float value) 828{ 829 // check calling permissions 830 if (!settingsAllowed()) { 831 return PERMISSION_DENIED; 832 } 833 834 AutoMutex lock(mHardwareLock); 835 mHardwareStatus = AUDIO_SET_VOICE_VOLUME; 836 status_t ret = mPrimaryHardwareDev->set_voice_volume(mPrimaryHardwareDev, value); 837 mHardwareStatus = AUDIO_HW_IDLE; 838 839 return ret; 840} 841 842status_t AudioFlinger::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output) 843{ 844 status_t status; 845 846 Mutex::Autolock _l(mLock); 847 848 PlaybackThread *playbackThread = checkPlaybackThread_l(output); 849 if (playbackThread != NULL) { 850 return playbackThread->getRenderPosition(halFrames, dspFrames); 851 } 852 853 return BAD_VALUE; 854} 855 856void AudioFlinger::registerClient(const sp<IAudioFlingerClient>& client) 857{ 858 859 Mutex::Autolock _l(mLock); 860 861 int pid = IPCThreadState::self()->getCallingPid(); 862 if (mNotificationClients.indexOfKey(pid) < 0) { 863 sp<NotificationClient> notificationClient = new NotificationClient(this, 864 client, 865 pid); 866 LOGV("registerClient() client %p, pid %d", notificationClient.get(), pid); 867 868 mNotificationClients.add(pid, notificationClient); 869 870 sp<IBinder> binder = client->asBinder(); 871 binder->linkToDeath(notificationClient); 872 873 // the config change is always sent from playback or record threads to avoid deadlock 874 // with AudioSystem::gLock 875 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 876 mPlaybackThreads.valueAt(i)->sendConfigEvent(AudioSystem::OUTPUT_OPENED); 877 } 878 879 for (size_t i = 0; i < mRecordThreads.size(); i++) { 880 mRecordThreads.valueAt(i)->sendConfigEvent(AudioSystem::INPUT_OPENED); 881 } 882 } 883} 884 885void AudioFlinger::removeNotificationClient(pid_t pid) 886{ 887 Mutex::Autolock _l(mLock); 888 889 int index = mNotificationClients.indexOfKey(pid); 890 if (index >= 0) { 891 sp <NotificationClient> client = mNotificationClients.valueFor(pid); 892 LOGV("removeNotificationClient() %p, pid %d", client.get(), pid); 893 mNotificationClients.removeItem(pid); 894 } 895} 896 897// audioConfigChanged_l() must be called with AudioFlinger::mLock held 898void AudioFlinger::audioConfigChanged_l(int event, int ioHandle, void *param2) 899{ 900 size_t size = mNotificationClients.size(); 901 for (size_t i = 0; i < size; i++) { 902 mNotificationClients.valueAt(i)->client()->ioConfigChanged(event, ioHandle, param2); 903 } 904} 905 906// removeClient_l() must be called with AudioFlinger::mLock held 907void AudioFlinger::removeClient_l(pid_t pid) 908{ 909 LOGV("removeClient_l() pid %d, tid %d, calling tid %d", pid, gettid(), IPCThreadState::self()->getCallingPid()); 910 mClients.removeItem(pid); 911} 912 913 914// ---------------------------------------------------------------------------- 915 916AudioFlinger::ThreadBase::ThreadBase(const sp<AudioFlinger>& audioFlinger, int id, uint32_t device) 917 : Thread(false), 918 mAudioFlinger(audioFlinger), mSampleRate(0), mFrameCount(0), mChannelCount(0), 919 mFrameSize(1), mFormat(0), mStandby(false), mId(id), mExiting(false), 920 mDevice(device) 921{ 922 mDeathRecipient = new PMDeathRecipient(this); 923} 924 925AudioFlinger::ThreadBase::~ThreadBase() 926{ 927 mParamCond.broadcast(); 928 mNewParameters.clear(); 929 // do not lock the mutex in destructor 930 releaseWakeLock_l(); 931} 932 933void AudioFlinger::ThreadBase::exit() 934{ 935 // keep a strong ref on ourself so that we wont get 936 // destroyed in the middle of requestExitAndWait() 937 sp <ThreadBase> strongMe = this; 938 939 LOGV("ThreadBase::exit"); 940 { 941 AutoMutex lock(&mLock); 942 mExiting = true; 943 requestExit(); 944 mWaitWorkCV.signal(); 945 } 946 requestExitAndWait(); 947} 948 949uint32_t AudioFlinger::ThreadBase::sampleRate() const 950{ 951 return mSampleRate; 952} 953 954int AudioFlinger::ThreadBase::channelCount() const 955{ 956 return (int)mChannelCount; 957} 958 959uint32_t AudioFlinger::ThreadBase::format() const 960{ 961 return mFormat; 962} 963 964size_t AudioFlinger::ThreadBase::frameCount() const 965{ 966 return mFrameCount; 967} 968 969status_t AudioFlinger::ThreadBase::setParameters(const String8& keyValuePairs) 970{ 971 status_t status; 972 973 LOGV("ThreadBase::setParameters() %s", keyValuePairs.string()); 974 Mutex::Autolock _l(mLock); 975 976 mNewParameters.add(keyValuePairs); 977 mWaitWorkCV.signal(); 978 // wait condition with timeout in case the thread loop has exited 979 // before the request could be processed 980 if (mParamCond.waitRelative(mLock, seconds(2)) == NO_ERROR) { 981 status = mParamStatus; 982 mWaitWorkCV.signal(); 983 } else { 984 status = TIMED_OUT; 985 } 986 return status; 987} 988 989void AudioFlinger::ThreadBase::sendConfigEvent(int event, int param) 990{ 991 Mutex::Autolock _l(mLock); 992 sendConfigEvent_l(event, param); 993} 994 995// sendConfigEvent_l() must be called with ThreadBase::mLock held 996void AudioFlinger::ThreadBase::sendConfigEvent_l(int event, int param) 997{ 998 ConfigEvent *configEvent = new ConfigEvent(); 999 configEvent->mEvent = event; 1000 configEvent->mParam = param; 1001 mConfigEvents.add(configEvent); 1002 LOGV("sendConfigEvent() num events %d event %d, param %d", mConfigEvents.size(), event, param); 1003 mWaitWorkCV.signal(); 1004} 1005 1006void AudioFlinger::ThreadBase::processConfigEvents() 1007{ 1008 mLock.lock(); 1009 while(!mConfigEvents.isEmpty()) { 1010 LOGV("processConfigEvents() remaining events %d", mConfigEvents.size()); 1011 ConfigEvent *configEvent = mConfigEvents[0]; 1012 mConfigEvents.removeAt(0); 1013 // release mLock before locking AudioFlinger mLock: lock order is always 1014 // AudioFlinger then ThreadBase to avoid cross deadlock 1015 mLock.unlock(); 1016 mAudioFlinger->mLock.lock(); 1017 audioConfigChanged_l(configEvent->mEvent, configEvent->mParam); 1018 mAudioFlinger->mLock.unlock(); 1019 delete configEvent; 1020 mLock.lock(); 1021 } 1022 mLock.unlock(); 1023} 1024 1025status_t AudioFlinger::ThreadBase::dumpBase(int fd, const Vector<String16>& args) 1026{ 1027 const size_t SIZE = 256; 1028 char buffer[SIZE]; 1029 String8 result; 1030 1031 bool locked = tryLock(mLock); 1032 if (!locked) { 1033 snprintf(buffer, SIZE, "thread %p maybe dead locked\n", this); 1034 write(fd, buffer, strlen(buffer)); 1035 } 1036 1037 snprintf(buffer, SIZE, "standby: %d\n", mStandby); 1038 result.append(buffer); 1039 snprintf(buffer, SIZE, "Sample rate: %d\n", mSampleRate); 1040 result.append(buffer); 1041 snprintf(buffer, SIZE, "Frame count: %d\n", mFrameCount); 1042 result.append(buffer); 1043 snprintf(buffer, SIZE, "Channel Count: %d\n", mChannelCount); 1044 result.append(buffer); 1045 snprintf(buffer, SIZE, "Channel Mask: 0x%08x\n", mChannelMask); 1046 result.append(buffer); 1047 snprintf(buffer, SIZE, "Format: %d\n", mFormat); 1048 result.append(buffer); 1049 snprintf(buffer, SIZE, "Frame size: %d\n", mFrameSize); 1050 result.append(buffer); 1051 1052 snprintf(buffer, SIZE, "\nPending setParameters commands: \n"); 1053 result.append(buffer); 1054 result.append(" Index Command"); 1055 for (size_t i = 0; i < mNewParameters.size(); ++i) { 1056 snprintf(buffer, SIZE, "\n %02d ", i); 1057 result.append(buffer); 1058 result.append(mNewParameters[i]); 1059 } 1060 1061 snprintf(buffer, SIZE, "\n\nPending config events: \n"); 1062 result.append(buffer); 1063 snprintf(buffer, SIZE, " Index event param\n"); 1064 result.append(buffer); 1065 for (size_t i = 0; i < mConfigEvents.size(); i++) { 1066 snprintf(buffer, SIZE, " %02d %02d %d\n", i, mConfigEvents[i]->mEvent, mConfigEvents[i]->mParam); 1067 result.append(buffer); 1068 } 1069 result.append("\n"); 1070 1071 write(fd, result.string(), result.size()); 1072 1073 if (locked) { 1074 mLock.unlock(); 1075 } 1076 return NO_ERROR; 1077} 1078 1079status_t AudioFlinger::ThreadBase::dumpEffectChains(int fd, const Vector<String16>& args) 1080{ 1081 const size_t SIZE = 256; 1082 char buffer[SIZE]; 1083 String8 result; 1084 1085 snprintf(buffer, SIZE, "\n- %d Effect Chains:\n", mEffectChains.size()); 1086 write(fd, buffer, strlen(buffer)); 1087 1088 for (size_t i = 0; i < mEffectChains.size(); ++i) { 1089 sp<EffectChain> chain = mEffectChains[i]; 1090 if (chain != 0) { 1091 chain->dump(fd, args); 1092 } 1093 } 1094 return NO_ERROR; 1095} 1096 1097void AudioFlinger::ThreadBase::acquireWakeLock() 1098{ 1099 Mutex::Autolock _l(mLock); 1100 acquireWakeLock_l(); 1101} 1102 1103void AudioFlinger::ThreadBase::acquireWakeLock_l() 1104{ 1105 if (mPowerManager == 0) { 1106 // use checkService() to avoid blocking if power service is not up yet 1107 sp<IBinder> binder = 1108 defaultServiceManager()->checkService(String16("power")); 1109 if (binder == 0) { 1110 LOGW("Thread %s cannot connect to the power manager service", mName); 1111 } else { 1112 mPowerManager = interface_cast<IPowerManager>(binder); 1113 binder->linkToDeath(mDeathRecipient); 1114 } 1115 } 1116 if (mPowerManager != 0) { 1117 sp<IBinder> binder = new BBinder(); 1118 status_t status = mPowerManager->acquireWakeLock(POWERMANAGER_PARTIAL_WAKE_LOCK, 1119 binder, 1120 String16(mName)); 1121 if (status == NO_ERROR) { 1122 mWakeLockToken = binder; 1123 } 1124 LOGV("acquireWakeLock_l() %s status %d", mName, status); 1125 } 1126} 1127 1128void AudioFlinger::ThreadBase::releaseWakeLock() 1129{ 1130 Mutex::Autolock _l(mLock); 1131 releaseWakeLock_l(); 1132} 1133 1134void AudioFlinger::ThreadBase::releaseWakeLock_l() 1135{ 1136 if (mWakeLockToken != 0) { 1137 LOGV("releaseWakeLock_l() %s", mName); 1138 if (mPowerManager != 0) { 1139 mPowerManager->releaseWakeLock(mWakeLockToken, 0); 1140 } 1141 mWakeLockToken.clear(); 1142 } 1143} 1144 1145void AudioFlinger::ThreadBase::clearPowerManager() 1146{ 1147 Mutex::Autolock _l(mLock); 1148 releaseWakeLock_l(); 1149 mPowerManager.clear(); 1150} 1151 1152void AudioFlinger::ThreadBase::PMDeathRecipient::binderDied(const wp<IBinder>& who) 1153{ 1154 sp<ThreadBase> thread = mThread.promote(); 1155 if (thread != 0) { 1156 thread->clearPowerManager(); 1157 } 1158 LOGW("power manager service died !!!"); 1159} 1160 1161void AudioFlinger::ThreadBase::setEffectSuspended( 1162 const effect_uuid_t *type, bool suspend, int sessionId) 1163{ 1164 Mutex::Autolock _l(mLock); 1165 setEffectSuspended_l(type, suspend, sessionId); 1166} 1167 1168void AudioFlinger::ThreadBase::setEffectSuspended_l( 1169 const effect_uuid_t *type, bool suspend, int sessionId) 1170{ 1171 sp<EffectChain> chain; 1172 chain = getEffectChain_l(sessionId); 1173 if (chain != 0) { 1174 if (type != NULL) { 1175 chain->setEffectSuspended_l(type, suspend); 1176 } else { 1177 chain->setEffectSuspendedAll_l(suspend); 1178 } 1179 } 1180 1181 updateSuspendedSessions_l(type, suspend, sessionId); 1182} 1183 1184void AudioFlinger::ThreadBase::checkSuspendOnAddEffectChain_l(const sp<EffectChain>& chain) 1185{ 1186 int index = mSuspendedSessions.indexOfKey(chain->sessionId()); 1187 if (index < 0) { 1188 return; 1189 } 1190 1191 KeyedVector <int, sp<SuspendedSessionDesc> > sessionEffects = 1192 mSuspendedSessions.editValueAt(index); 1193 1194 for (size_t i = 0; i < sessionEffects.size(); i++) { 1195 sp <SuspendedSessionDesc> desc = sessionEffects.valueAt(i); 1196 for (int j = 0; j < desc->mRefCount; j++) { 1197 if (sessionEffects.keyAt(i) == EffectChain::kKeyForSuspendAll) { 1198 chain->setEffectSuspendedAll_l(true); 1199 } else { 1200 LOGV("checkSuspendOnAddEffectChain_l() suspending effects %08x", 1201 desc->mType.timeLow); 1202 chain->setEffectSuspended_l(&desc->mType, true); 1203 } 1204 } 1205 } 1206} 1207 1208void AudioFlinger::ThreadBase::updateSuspendedSessionsOnRemoveEffectChain_l( 1209 const sp<EffectChain>& chain) 1210{ 1211 int index = mSuspendedSessions.indexOfKey(chain->sessionId()); 1212 if (index < 0) { 1213 return; 1214 } 1215 LOGV("updateSuspendedSessionsOnRemoveEffectChain_l() removed suspended session %d", 1216 chain->sessionId()); 1217 mSuspendedSessions.removeItemsAt(index); 1218} 1219 1220void AudioFlinger::ThreadBase::updateSuspendedSessions_l(const effect_uuid_t *type, 1221 bool suspend, 1222 int sessionId) 1223{ 1224 int index = mSuspendedSessions.indexOfKey(sessionId); 1225 1226 KeyedVector <int, sp<SuspendedSessionDesc> > sessionEffects; 1227 1228 if (suspend) { 1229 if (index >= 0) { 1230 sessionEffects = mSuspendedSessions.editValueAt(index); 1231 } else { 1232 mSuspendedSessions.add(sessionId, sessionEffects); 1233 } 1234 } else { 1235 if (index < 0) { 1236 return; 1237 } 1238 sessionEffects = mSuspendedSessions.editValueAt(index); 1239 } 1240 1241 1242 int key = EffectChain::kKeyForSuspendAll; 1243 if (type != NULL) { 1244 key = type->timeLow; 1245 } 1246 index = sessionEffects.indexOfKey(key); 1247 1248 sp <SuspendedSessionDesc> desc; 1249 if (suspend) { 1250 if (index >= 0) { 1251 desc = sessionEffects.valueAt(index); 1252 } else { 1253 desc = new SuspendedSessionDesc(); 1254 if (type != NULL) { 1255 memcpy(&desc->mType, type, sizeof(effect_uuid_t)); 1256 } 1257 sessionEffects.add(key, desc); 1258 LOGV("updateSuspendedSessions_l() suspend adding effect %08x", key); 1259 } 1260 desc->mRefCount++; 1261 } else { 1262 if (index < 0) { 1263 return; 1264 } 1265 desc = sessionEffects.valueAt(index); 1266 if (--desc->mRefCount == 0) { 1267 LOGV("updateSuspendedSessions_l() restore removing effect %08x", key); 1268 sessionEffects.removeItemsAt(index); 1269 if (sessionEffects.isEmpty()) { 1270 LOGV("updateSuspendedSessions_l() restore removing session %d", 1271 sessionId); 1272 mSuspendedSessions.removeItem(sessionId); 1273 } 1274 } 1275 } 1276 if (!sessionEffects.isEmpty()) { 1277 mSuspendedSessions.replaceValueFor(sessionId, sessionEffects); 1278 } 1279} 1280 1281void AudioFlinger::ThreadBase::checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, 1282 bool enabled, 1283 int sessionId) 1284{ 1285 Mutex::Autolock _l(mLock); 1286 1287 // TODO: implement PlaybackThread or RecordThread specific behavior here 1288 1289 sp<EffectChain> chain = getEffectChain_l(sessionId); 1290 if (chain != 0) { 1291 chain->checkSuspendOnEffectEnabled(effect, enabled); 1292 } 1293} 1294 1295// ---------------------------------------------------------------------------- 1296 1297AudioFlinger::PlaybackThread::PlaybackThread(const sp<AudioFlinger>& audioFlinger, 1298 AudioStreamOut* output, 1299 int id, 1300 uint32_t device) 1301 : ThreadBase(audioFlinger, id, device), 1302 mMixBuffer(0), mSuspended(0), mBytesWritten(0), mOutput(output), 1303 mLastWriteTime(0), mNumWrites(0), mNumDelayedWrites(0), mInWrite(false) 1304{ 1305 snprintf(mName, kNameLength, "AudioOut_%d", id); 1306 1307 readOutputParameters(); 1308 1309 mMasterVolume = mAudioFlinger->masterVolume(); 1310 mMasterMute = mAudioFlinger->masterMute(); 1311 1312 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 1313 mStreamTypes[stream].volume = mAudioFlinger->streamVolumeInternal(stream); 1314 mStreamTypes[stream].mute = mAudioFlinger->streamMute(stream); 1315 } 1316} 1317 1318AudioFlinger::PlaybackThread::~PlaybackThread() 1319{ 1320 delete [] mMixBuffer; 1321} 1322 1323status_t AudioFlinger::PlaybackThread::dump(int fd, const Vector<String16>& args) 1324{ 1325 dumpInternals(fd, args); 1326 dumpTracks(fd, args); 1327 dumpEffectChains(fd, args); 1328 return NO_ERROR; 1329} 1330 1331status_t AudioFlinger::PlaybackThread::dumpTracks(int fd, const Vector<String16>& args) 1332{ 1333 const size_t SIZE = 256; 1334 char buffer[SIZE]; 1335 String8 result; 1336 1337 snprintf(buffer, SIZE, "Output thread %p tracks\n", this); 1338 result.append(buffer); 1339 result.append(" Name Clien Typ Fmt Chn mask Session Buf S M F SRate LeftV RighV Serv User Main buf Aux Buf\n"); 1340 for (size_t i = 0; i < mTracks.size(); ++i) { 1341 sp<Track> track = mTracks[i]; 1342 if (track != 0) { 1343 track->dump(buffer, SIZE); 1344 result.append(buffer); 1345 } 1346 } 1347 1348 snprintf(buffer, SIZE, "Output thread %p active tracks\n", this); 1349 result.append(buffer); 1350 result.append(" Name Clien Typ Fmt Chn mask Session Buf S M F SRate LeftV RighV Serv User Main buf Aux Buf\n"); 1351 for (size_t i = 0; i < mActiveTracks.size(); ++i) { 1352 wp<Track> wTrack = mActiveTracks[i]; 1353 if (wTrack != 0) { 1354 sp<Track> track = wTrack.promote(); 1355 if (track != 0) { 1356 track->dump(buffer, SIZE); 1357 result.append(buffer); 1358 } 1359 } 1360 } 1361 write(fd, result.string(), result.size()); 1362 return NO_ERROR; 1363} 1364 1365status_t AudioFlinger::PlaybackThread::dumpInternals(int fd, const Vector<String16>& args) 1366{ 1367 const size_t SIZE = 256; 1368 char buffer[SIZE]; 1369 String8 result; 1370 1371 snprintf(buffer, SIZE, "\nOutput thread %p internals\n", this); 1372 result.append(buffer); 1373 snprintf(buffer, SIZE, "last write occurred (msecs): %llu\n", ns2ms(systemTime() - mLastWriteTime)); 1374 result.append(buffer); 1375 snprintf(buffer, SIZE, "total writes: %d\n", mNumWrites); 1376 result.append(buffer); 1377 snprintf(buffer, SIZE, "delayed writes: %d\n", mNumDelayedWrites); 1378 result.append(buffer); 1379 snprintf(buffer, SIZE, "blocked in write: %d\n", mInWrite); 1380 result.append(buffer); 1381 snprintf(buffer, SIZE, "suspend count: %d\n", mSuspended); 1382 result.append(buffer); 1383 snprintf(buffer, SIZE, "mix buffer : %p\n", mMixBuffer); 1384 result.append(buffer); 1385 write(fd, result.string(), result.size()); 1386 1387 dumpBase(fd, args); 1388 1389 return NO_ERROR; 1390} 1391 1392// Thread virtuals 1393status_t AudioFlinger::PlaybackThread::readyToRun() 1394{ 1395 status_t status = initCheck(); 1396 if (status == NO_ERROR) { 1397 LOGI("AudioFlinger's thread %p ready to run", this); 1398 } else { 1399 LOGE("No working audio driver found."); 1400 } 1401 return status; 1402} 1403 1404void AudioFlinger::PlaybackThread::onFirstRef() 1405{ 1406 run(mName, ANDROID_PRIORITY_URGENT_AUDIO); 1407} 1408 1409// PlaybackThread::createTrack_l() must be called with AudioFlinger::mLock held 1410sp<AudioFlinger::PlaybackThread::Track> AudioFlinger::PlaybackThread::createTrack_l( 1411 const sp<AudioFlinger::Client>& client, 1412 int streamType, 1413 uint32_t sampleRate, 1414 uint32_t format, 1415 uint32_t channelMask, 1416 int frameCount, 1417 const sp<IMemory>& sharedBuffer, 1418 int sessionId, 1419 status_t *status) 1420{ 1421 sp<Track> track; 1422 status_t lStatus; 1423 1424 if (mType == DIRECT) { 1425 if ((format & AUDIO_FORMAT_MAIN_MASK) == AUDIO_FORMAT_PCM) { 1426 if (sampleRate != mSampleRate || format != mFormat || channelMask != mChannelMask) { 1427 LOGE("createTrack_l() Bad parameter: sampleRate %d format %d, channelMask 0x%08x \"" 1428 "for output %p with format %d", 1429 sampleRate, format, channelMask, mOutput, mFormat); 1430 lStatus = BAD_VALUE; 1431 goto Exit; 1432 } 1433 } 1434 } else { 1435 // Resampler implementation limits input sampling rate to 2 x output sampling rate. 1436 if (sampleRate > mSampleRate*2) { 1437 LOGE("Sample rate out of range: %d mSampleRate %d", sampleRate, mSampleRate); 1438 lStatus = BAD_VALUE; 1439 goto Exit; 1440 } 1441 } 1442 1443 lStatus = initCheck(); 1444 if (lStatus != NO_ERROR) { 1445 LOGE("Audio driver not initialized."); 1446 goto Exit; 1447 } 1448 1449 { // scope for mLock 1450 Mutex::Autolock _l(mLock); 1451 1452 // all tracks in same audio session must share the same routing strategy otherwise 1453 // conflicts will happen when tracks are moved from one output to another by audio policy 1454 // manager 1455 uint32_t strategy = 1456 AudioSystem::getStrategyForStream((audio_stream_type_t)streamType); 1457 for (size_t i = 0; i < mTracks.size(); ++i) { 1458 sp<Track> t = mTracks[i]; 1459 if (t != 0) { 1460 if (sessionId == t->sessionId() && 1461 strategy != AudioSystem::getStrategyForStream((audio_stream_type_t)t->type())) { 1462 lStatus = BAD_VALUE; 1463 goto Exit; 1464 } 1465 } 1466 } 1467 1468 track = new Track(this, client, streamType, sampleRate, format, 1469 channelMask, frameCount, sharedBuffer, sessionId); 1470 if (track->getCblk() == NULL || track->name() < 0) { 1471 lStatus = NO_MEMORY; 1472 goto Exit; 1473 } 1474 mTracks.add(track); 1475 1476 sp<EffectChain> chain = getEffectChain_l(sessionId); 1477 if (chain != 0) { 1478 LOGV("createTrack_l() setting main buffer %p", chain->inBuffer()); 1479 track->setMainBuffer(chain->inBuffer()); 1480 chain->setStrategy(AudioSystem::getStrategyForStream((audio_stream_type_t)track->type())); 1481 chain->incTrackCnt(); 1482 } 1483 } 1484 lStatus = NO_ERROR; 1485 1486Exit: 1487 if(status) { 1488 *status = lStatus; 1489 } 1490 return track; 1491} 1492 1493uint32_t AudioFlinger::PlaybackThread::latency() const 1494{ 1495 Mutex::Autolock _l(mLock); 1496 if (initCheck() == NO_ERROR) { 1497 return mOutput->stream->get_latency(mOutput->stream); 1498 } else { 1499 return 0; 1500 } 1501} 1502 1503status_t AudioFlinger::PlaybackThread::setMasterVolume(float value) 1504{ 1505 mMasterVolume = value; 1506 return NO_ERROR; 1507} 1508 1509status_t AudioFlinger::PlaybackThread::setMasterMute(bool muted) 1510{ 1511 mMasterMute = muted; 1512 return NO_ERROR; 1513} 1514 1515float AudioFlinger::PlaybackThread::masterVolume() const 1516{ 1517 return mMasterVolume; 1518} 1519 1520bool AudioFlinger::PlaybackThread::masterMute() const 1521{ 1522 return mMasterMute; 1523} 1524 1525status_t AudioFlinger::PlaybackThread::setStreamVolume(int stream, float value) 1526{ 1527 mStreamTypes[stream].volume = value; 1528 return NO_ERROR; 1529} 1530 1531status_t AudioFlinger::PlaybackThread::setStreamMute(int stream, bool muted) 1532{ 1533 mStreamTypes[stream].mute = muted; 1534 return NO_ERROR; 1535} 1536 1537float AudioFlinger::PlaybackThread::streamVolume(int stream) const 1538{ 1539 return mStreamTypes[stream].volume; 1540} 1541 1542bool AudioFlinger::PlaybackThread::streamMute(int stream) const 1543{ 1544 return mStreamTypes[stream].mute; 1545} 1546 1547// addTrack_l() must be called with ThreadBase::mLock held 1548status_t AudioFlinger::PlaybackThread::addTrack_l(const sp<Track>& track) 1549{ 1550 status_t status = ALREADY_EXISTS; 1551 1552 // set retry count for buffer fill 1553 track->mRetryCount = kMaxTrackStartupRetries; 1554 if (mActiveTracks.indexOf(track) < 0) { 1555 // the track is newly added, make sure it fills up all its 1556 // buffers before playing. This is to ensure the client will 1557 // effectively get the latency it requested. 1558 track->mFillingUpStatus = Track::FS_FILLING; 1559 track->mResetDone = false; 1560 mActiveTracks.add(track); 1561 if (track->mainBuffer() != mMixBuffer) { 1562 sp<EffectChain> chain = getEffectChain_l(track->sessionId()); 1563 if (chain != 0) { 1564 LOGV("addTrack_l() starting track on chain %p for session %d", chain.get(), track->sessionId()); 1565 chain->incActiveTrackCnt(); 1566 } 1567 } 1568 1569 status = NO_ERROR; 1570 } 1571 1572 LOGV("mWaitWorkCV.broadcast"); 1573 mWaitWorkCV.broadcast(); 1574 1575 return status; 1576} 1577 1578// destroyTrack_l() must be called with ThreadBase::mLock held 1579void AudioFlinger::PlaybackThread::destroyTrack_l(const sp<Track>& track) 1580{ 1581 track->mState = TrackBase::TERMINATED; 1582 if (mActiveTracks.indexOf(track) < 0) { 1583 removeTrack_l(track); 1584 } 1585} 1586 1587void AudioFlinger::PlaybackThread::removeTrack_l(const sp<Track>& track) 1588{ 1589 mTracks.remove(track); 1590 deleteTrackName_l(track->name()); 1591 sp<EffectChain> chain = getEffectChain_l(track->sessionId()); 1592 if (chain != 0) { 1593 chain->decTrackCnt(); 1594 } 1595} 1596 1597String8 AudioFlinger::PlaybackThread::getParameters(const String8& keys) 1598{ 1599 String8 out_s8 = String8(""); 1600 char *s; 1601 1602 Mutex::Autolock _l(mLock); 1603 if (initCheck() != NO_ERROR) { 1604 return out_s8; 1605 } 1606 1607 s = mOutput->stream->common.get_parameters(&mOutput->stream->common, keys.string()); 1608 out_s8 = String8(s); 1609 free(s); 1610 return out_s8; 1611} 1612 1613// audioConfigChanged_l() must be called with AudioFlinger::mLock held 1614void AudioFlinger::PlaybackThread::audioConfigChanged_l(int event, int param) { 1615 AudioSystem::OutputDescriptor desc; 1616 void *param2 = 0; 1617 1618 LOGV("PlaybackThread::audioConfigChanged_l, thread %p, event %d, param %d", this, event, param); 1619 1620 switch (event) { 1621 case AudioSystem::OUTPUT_OPENED: 1622 case AudioSystem::OUTPUT_CONFIG_CHANGED: 1623 desc.channels = mChannelMask; 1624 desc.samplingRate = mSampleRate; 1625 desc.format = mFormat; 1626 desc.frameCount = mFrameCount; 1627 desc.latency = latency(); 1628 param2 = &desc; 1629 break; 1630 1631 case AudioSystem::STREAM_CONFIG_CHANGED: 1632 param2 = ¶m; 1633 case AudioSystem::OUTPUT_CLOSED: 1634 default: 1635 break; 1636 } 1637 mAudioFlinger->audioConfigChanged_l(event, mId, param2); 1638} 1639 1640void AudioFlinger::PlaybackThread::readOutputParameters() 1641{ 1642 mSampleRate = mOutput->stream->common.get_sample_rate(&mOutput->stream->common); 1643 mChannelMask = mOutput->stream->common.get_channels(&mOutput->stream->common); 1644 mChannelCount = (uint16_t)popcount(mChannelMask); 1645 mFormat = mOutput->stream->common.get_format(&mOutput->stream->common); 1646 mFrameSize = (uint16_t)audio_stream_frame_size(&mOutput->stream->common); 1647 mFrameCount = mOutput->stream->common.get_buffer_size(&mOutput->stream->common) / mFrameSize; 1648 1649 // FIXME - Current mixer implementation only supports stereo output: Always 1650 // Allocate a stereo buffer even if HW output is mono. 1651 if (mMixBuffer != NULL) delete[] mMixBuffer; 1652 mMixBuffer = new int16_t[mFrameCount * 2]; 1653 memset(mMixBuffer, 0, mFrameCount * 2 * sizeof(int16_t)); 1654 1655 // force reconfiguration of effect chains and engines to take new buffer size and audio 1656 // parameters into account 1657 // Note that mLock is not held when readOutputParameters() is called from the constructor 1658 // but in this case nothing is done below as no audio sessions have effect yet so it doesn't 1659 // matter. 1660 // create a copy of mEffectChains as calling moveEffectChain_l() can reorder some effect chains 1661 Vector< sp<EffectChain> > effectChains = mEffectChains; 1662 for (size_t i = 0; i < effectChains.size(); i ++) { 1663 mAudioFlinger->moveEffectChain_l(effectChains[i]->sessionId(), this, this, false); 1664 } 1665} 1666 1667status_t AudioFlinger::PlaybackThread::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames) 1668{ 1669 if (halFrames == 0 || dspFrames == 0) { 1670 return BAD_VALUE; 1671 } 1672 Mutex::Autolock _l(mLock); 1673 if (initCheck() != NO_ERROR) { 1674 return INVALID_OPERATION; 1675 } 1676 *halFrames = mBytesWritten / audio_stream_frame_size(&mOutput->stream->common); 1677 1678 return mOutput->stream->get_render_position(mOutput->stream, dspFrames); 1679} 1680 1681uint32_t AudioFlinger::PlaybackThread::hasAudioSession(int sessionId) 1682{ 1683 Mutex::Autolock _l(mLock); 1684 uint32_t result = 0; 1685 if (getEffectChain_l(sessionId) != 0) { 1686 result = EFFECT_SESSION; 1687 } 1688 1689 for (size_t i = 0; i < mTracks.size(); ++i) { 1690 sp<Track> track = mTracks[i]; 1691 if (sessionId == track->sessionId() && 1692 !(track->mCblk->flags & CBLK_INVALID_MSK)) { 1693 result |= TRACK_SESSION; 1694 break; 1695 } 1696 } 1697 1698 return result; 1699} 1700 1701uint32_t AudioFlinger::PlaybackThread::getStrategyForSession_l(int sessionId) 1702{ 1703 // session AUDIO_SESSION_OUTPUT_MIX is placed in same strategy as MUSIC stream so that 1704 // it is moved to correct output by audio policy manager when A2DP is connected or disconnected 1705 if (sessionId == AUDIO_SESSION_OUTPUT_MIX) { 1706 return AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC); 1707 } 1708 for (size_t i = 0; i < mTracks.size(); i++) { 1709 sp<Track> track = mTracks[i]; 1710 if (sessionId == track->sessionId() && 1711 !(track->mCblk->flags & CBLK_INVALID_MSK)) { 1712 return AudioSystem::getStrategyForStream((audio_stream_type_t) track->type()); 1713 } 1714 } 1715 return AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC); 1716} 1717 1718 1719AudioFlinger::AudioStreamOut* AudioFlinger::PlaybackThread::getOutput() 1720{ 1721 Mutex::Autolock _l(mLock); 1722 return mOutput; 1723} 1724 1725AudioFlinger::AudioStreamOut* AudioFlinger::PlaybackThread::clearOutput() 1726{ 1727 Mutex::Autolock _l(mLock); 1728 AudioStreamOut *output = mOutput; 1729 mOutput = NULL; 1730 return output; 1731} 1732 1733// this method must always be called either with ThreadBase mLock held or inside the thread loop 1734audio_stream_t* AudioFlinger::PlaybackThread::stream() 1735{ 1736 if (mOutput == NULL) { 1737 return NULL; 1738 } 1739 return &mOutput->stream->common; 1740} 1741 1742// ---------------------------------------------------------------------------- 1743 1744AudioFlinger::MixerThread::MixerThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device) 1745 : PlaybackThread(audioFlinger, output, id, device), 1746 mAudioMixer(0) 1747{ 1748 mType = ThreadBase::MIXER; 1749 mAudioMixer = new AudioMixer(mFrameCount, mSampleRate); 1750 1751 // FIXME - Current mixer implementation only supports stereo output 1752 if (mChannelCount == 1) { 1753 LOGE("Invalid audio hardware channel count"); 1754 } 1755} 1756 1757AudioFlinger::MixerThread::~MixerThread() 1758{ 1759 delete mAudioMixer; 1760} 1761 1762bool AudioFlinger::MixerThread::threadLoop() 1763{ 1764 Vector< sp<Track> > tracksToRemove; 1765 uint32_t mixerStatus = MIXER_IDLE; 1766 nsecs_t standbyTime = systemTime(); 1767 size_t mixBufferSize = mFrameCount * mFrameSize; 1768 // FIXME: Relaxed timing because of a certain device that can't meet latency 1769 // Should be reduced to 2x after the vendor fixes the driver issue 1770 nsecs_t maxPeriod = seconds(mFrameCount) / mSampleRate * 3; 1771 nsecs_t lastWarning = 0; 1772 bool longStandbyExit = false; 1773 uint32_t activeSleepTime = activeSleepTimeUs(); 1774 uint32_t idleSleepTime = idleSleepTimeUs(); 1775 uint32_t sleepTime = idleSleepTime; 1776 Vector< sp<EffectChain> > effectChains; 1777#ifdef DEBUG_CPU_USAGE 1778 ThreadCpuUsage cpu; 1779 const CentralTendencyStatistics& stats = cpu.statistics(); 1780#endif 1781 1782 acquireWakeLock(); 1783 1784 while (!exitPending()) 1785 { 1786#ifdef DEBUG_CPU_USAGE 1787 cpu.sampleAndEnable(); 1788 unsigned n = stats.n(); 1789 // cpu.elapsed() is expensive, so don't call it every loop 1790 if ((n & 127) == 1) { 1791 long long elapsed = cpu.elapsed(); 1792 if (elapsed >= DEBUG_CPU_USAGE * 1000000000LL) { 1793 double perLoop = elapsed / (double) n; 1794 double perLoop100 = perLoop * 0.01; 1795 double mean = stats.mean(); 1796 double stddev = stats.stddev(); 1797 double minimum = stats.minimum(); 1798 double maximum = stats.maximum(); 1799 cpu.resetStatistics(); 1800 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", 1801 elapsed * .000000001, n, perLoop * .000001, 1802 mean * .001, 1803 stddev * .001, 1804 minimum * .001, 1805 maximum * .001, 1806 mean / perLoop100, 1807 stddev / perLoop100, 1808 minimum / perLoop100, 1809 maximum / perLoop100); 1810 } 1811 } 1812#endif 1813 processConfigEvents(); 1814 1815 mixerStatus = MIXER_IDLE; 1816 { // scope for mLock 1817 1818 Mutex::Autolock _l(mLock); 1819 1820 if (checkForNewParameters_l()) { 1821 mixBufferSize = mFrameCount * mFrameSize; 1822 // FIXME: Relaxed timing because of a certain device that can't meet latency 1823 // Should be reduced to 2x after the vendor fixes the driver issue 1824 maxPeriod = seconds(mFrameCount) / mSampleRate * 3; 1825 activeSleepTime = activeSleepTimeUs(); 1826 idleSleepTime = idleSleepTimeUs(); 1827 } 1828 1829 const SortedVector< wp<Track> >& activeTracks = mActiveTracks; 1830 1831 // put audio hardware into standby after short delay 1832 if UNLIKELY((!activeTracks.size() && systemTime() > standbyTime) || 1833 mSuspended) { 1834 if (!mStandby) { 1835 LOGV("Audio hardware entering standby, mixer %p, mSuspended %d\n", this, mSuspended); 1836 mOutput->stream->common.standby(&mOutput->stream->common); 1837 mStandby = true; 1838 mBytesWritten = 0; 1839 } 1840 1841 if (!activeTracks.size() && mConfigEvents.isEmpty()) { 1842 // we're about to wait, flush the binder command buffer 1843 IPCThreadState::self()->flushCommands(); 1844 1845 if (exitPending()) break; 1846 1847 releaseWakeLock_l(); 1848 // wait until we have something to do... 1849 LOGV("MixerThread %p TID %d going to sleep\n", this, gettid()); 1850 mWaitWorkCV.wait(mLock); 1851 LOGV("MixerThread %p TID %d waking up\n", this, gettid()); 1852 acquireWakeLock_l(); 1853 1854 if (mMasterMute == false) { 1855 char value[PROPERTY_VALUE_MAX]; 1856 property_get("ro.audio.silent", value, "0"); 1857 if (atoi(value)) { 1858 LOGD("Silence is golden"); 1859 setMasterMute(true); 1860 } 1861 } 1862 1863 standbyTime = systemTime() + kStandbyTimeInNsecs; 1864 sleepTime = idleSleepTime; 1865 continue; 1866 } 1867 } 1868 1869 mixerStatus = prepareTracks_l(activeTracks, &tracksToRemove); 1870 1871 // prevent any changes in effect chain list and in each effect chain 1872 // during mixing and effect process as the audio buffers could be deleted 1873 // or modified if an effect is created or deleted 1874 lockEffectChains_l(effectChains); 1875 } 1876 1877 if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) { 1878 // mix buffers... 1879 mAudioMixer->process(); 1880 sleepTime = 0; 1881 standbyTime = systemTime() + kStandbyTimeInNsecs; 1882 //TODO: delay standby when effects have a tail 1883 } else { 1884 // If no tracks are ready, sleep once for the duration of an output 1885 // buffer size, then write 0s to the output 1886 if (sleepTime == 0) { 1887 if (mixerStatus == MIXER_TRACKS_ENABLED) { 1888 sleepTime = activeSleepTime; 1889 } else { 1890 sleepTime = idleSleepTime; 1891 } 1892 } else if (mBytesWritten != 0 || 1893 (mixerStatus == MIXER_TRACKS_ENABLED && longStandbyExit)) { 1894 memset (mMixBuffer, 0, mixBufferSize); 1895 sleepTime = 0; 1896 LOGV_IF((mBytesWritten == 0 && (mixerStatus == MIXER_TRACKS_ENABLED && longStandbyExit)), "anticipated start"); 1897 } 1898 // TODO add standby time extension fct of effect tail 1899 } 1900 1901 if (mSuspended) { 1902 sleepTime = suspendSleepTimeUs(); 1903 } 1904 // sleepTime == 0 means we must write to audio hardware 1905 if (sleepTime == 0) { 1906 for (size_t i = 0; i < effectChains.size(); i ++) { 1907 effectChains[i]->process_l(); 1908 } 1909 // enable changes in effect chain 1910 unlockEffectChains(effectChains); 1911 mLastWriteTime = systemTime(); 1912 mInWrite = true; 1913 mBytesWritten += mixBufferSize; 1914 1915 int bytesWritten = (int)mOutput->stream->write(mOutput->stream, mMixBuffer, mixBufferSize); 1916 if (bytesWritten < 0) mBytesWritten -= mixBufferSize; 1917 mNumWrites++; 1918 mInWrite = false; 1919 nsecs_t now = systemTime(); 1920 nsecs_t delta = now - mLastWriteTime; 1921 if (delta > maxPeriod) { 1922 mNumDelayedWrites++; 1923 if ((now - lastWarning) > kWarningThrottle) { 1924 LOGW("write blocked for %llu msecs, %d delayed writes, thread %p", 1925 ns2ms(delta), mNumDelayedWrites, this); 1926 lastWarning = now; 1927 } 1928 if (mStandby) { 1929 longStandbyExit = true; 1930 } 1931 } 1932 mStandby = false; 1933 } else { 1934 // enable changes in effect chain 1935 unlockEffectChains(effectChains); 1936 usleep(sleepTime); 1937 } 1938 1939 // finally let go of all our tracks, without the lock held 1940 // since we can't guarantee the destructors won't acquire that 1941 // same lock. 1942 tracksToRemove.clear(); 1943 1944 // Effect chains will be actually deleted here if they were removed from 1945 // mEffectChains list during mixing or effects processing 1946 effectChains.clear(); 1947 } 1948 1949 if (!mStandby) { 1950 mOutput->stream->common.standby(&mOutput->stream->common); 1951 } 1952 1953 releaseWakeLock(); 1954 1955 LOGV("MixerThread %p exiting", this); 1956 return false; 1957} 1958 1959// prepareTracks_l() must be called with ThreadBase::mLock held 1960uint32_t AudioFlinger::MixerThread::prepareTracks_l(const SortedVector< wp<Track> >& activeTracks, Vector< sp<Track> > *tracksToRemove) 1961{ 1962 1963 uint32_t mixerStatus = MIXER_IDLE; 1964 // find out which tracks need to be processed 1965 size_t count = activeTracks.size(); 1966 size_t mixedTracks = 0; 1967 size_t tracksWithEffect = 0; 1968 1969 float masterVolume = mMasterVolume; 1970 bool masterMute = mMasterMute; 1971 1972 if (masterMute) { 1973 masterVolume = 0; 1974 } 1975 // Delegate master volume control to effect in output mix effect chain if needed 1976 sp<EffectChain> chain = getEffectChain_l(AUDIO_SESSION_OUTPUT_MIX); 1977 if (chain != 0) { 1978 uint32_t v = (uint32_t)(masterVolume * (1 << 24)); 1979 chain->setVolume_l(&v, &v); 1980 masterVolume = (float)((v + (1 << 23)) >> 24); 1981 chain.clear(); 1982 } 1983 1984 for (size_t i=0 ; i<count ; i++) { 1985 sp<Track> t = activeTracks[i].promote(); 1986 if (t == 0) continue; 1987 1988 Track* const track = t.get(); 1989 audio_track_cblk_t* cblk = track->cblk(); 1990 1991 // The first time a track is added we wait 1992 // for all its buffers to be filled before processing it 1993 mAudioMixer->setActiveTrack(track->name()); 1994 if (cblk->framesReady() && track->isReady() && 1995 !track->isPaused() && !track->isTerminated()) 1996 { 1997 //LOGV("track %d u=%08x, s=%08x [OK] on thread %p", track->name(), cblk->user, cblk->server, this); 1998 1999 mixedTracks++; 2000 2001 // track->mainBuffer() != mMixBuffer means there is an effect chain 2002 // connected to the track 2003 chain.clear(); 2004 if (track->mainBuffer() != mMixBuffer) { 2005 chain = getEffectChain_l(track->sessionId()); 2006 // Delegate volume control to effect in track effect chain if needed 2007 if (chain != 0) { 2008 tracksWithEffect++; 2009 } else { 2010 LOGW("prepareTracks_l(): track %08x attached to effect but no chain found on session %d", 2011 track->name(), track->sessionId()); 2012 } 2013 } 2014 2015 2016 int param = AudioMixer::VOLUME; 2017 if (track->mFillingUpStatus == Track::FS_FILLED) { 2018 // no ramp for the first volume setting 2019 track->mFillingUpStatus = Track::FS_ACTIVE; 2020 if (track->mState == TrackBase::RESUMING) { 2021 track->mState = TrackBase::ACTIVE; 2022 param = AudioMixer::RAMP_VOLUME; 2023 } 2024 mAudioMixer->setParameter(AudioMixer::RESAMPLE, AudioMixer::RESET, NULL); 2025 } else if (cblk->server != 0) { 2026 // If the track is stopped before the first frame was mixed, 2027 // do not apply ramp 2028 param = AudioMixer::RAMP_VOLUME; 2029 } 2030 2031 // compute volume for this track 2032 uint32_t vl, vr, va; 2033 if (track->isMuted() || track->isPausing() || 2034 mStreamTypes[track->type()].mute) { 2035 vl = vr = va = 0; 2036 if (track->isPausing()) { 2037 track->setPaused(); 2038 } 2039 } else { 2040 2041 // read original volumes with volume control 2042 float typeVolume = mStreamTypes[track->type()].volume; 2043 float v = masterVolume * typeVolume; 2044 vl = (uint32_t)(v * cblk->volume[0]) << 12; 2045 vr = (uint32_t)(v * cblk->volume[1]) << 12; 2046 2047 va = (uint32_t)(v * cblk->sendLevel); 2048 } 2049 // Delegate volume control to effect in track effect chain if needed 2050 if (chain != 0 && chain->setVolume_l(&vl, &vr)) { 2051 // Do not ramp volume if volume is controlled by effect 2052 param = AudioMixer::VOLUME; 2053 track->mHasVolumeController = true; 2054 } else { 2055 // force no volume ramp when volume controller was just disabled or removed 2056 // from effect chain to avoid volume spike 2057 if (track->mHasVolumeController) { 2058 param = AudioMixer::VOLUME; 2059 } 2060 track->mHasVolumeController = false; 2061 } 2062 2063 // Convert volumes from 8.24 to 4.12 format 2064 int16_t left, right, aux; 2065 uint32_t v_clamped = (vl + (1 << 11)) >> 12; 2066 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2067 left = int16_t(v_clamped); 2068 v_clamped = (vr + (1 << 11)) >> 12; 2069 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2070 right = int16_t(v_clamped); 2071 2072 if (va > MAX_GAIN_INT) va = MAX_GAIN_INT; 2073 aux = int16_t(va); 2074 2075 // XXX: these things DON'T need to be done each time 2076 mAudioMixer->setBufferProvider(track); 2077 mAudioMixer->enable(AudioMixer::MIXING); 2078 2079 mAudioMixer->setParameter(param, AudioMixer::VOLUME0, (void *)left); 2080 mAudioMixer->setParameter(param, AudioMixer::VOLUME1, (void *)right); 2081 mAudioMixer->setParameter(param, AudioMixer::AUXLEVEL, (void *)aux); 2082 mAudioMixer->setParameter( 2083 AudioMixer::TRACK, 2084 AudioMixer::FORMAT, (void *)track->format()); 2085 mAudioMixer->setParameter( 2086 AudioMixer::TRACK, 2087 AudioMixer::CHANNEL_MASK, (void *)track->channelMask()); 2088 mAudioMixer->setParameter( 2089 AudioMixer::RESAMPLE, 2090 AudioMixer::SAMPLE_RATE, 2091 (void *)(cblk->sampleRate)); 2092 mAudioMixer->setParameter( 2093 AudioMixer::TRACK, 2094 AudioMixer::MAIN_BUFFER, (void *)track->mainBuffer()); 2095 mAudioMixer->setParameter( 2096 AudioMixer::TRACK, 2097 AudioMixer::AUX_BUFFER, (void *)track->auxBuffer()); 2098 2099 // reset retry count 2100 track->mRetryCount = kMaxTrackRetries; 2101 mixerStatus = MIXER_TRACKS_READY; 2102 } else { 2103 //LOGV("track %d u=%08x, s=%08x [NOT READY] on thread %p", track->name(), cblk->user, cblk->server, this); 2104 if (track->isStopped()) { 2105 track->reset(); 2106 } 2107 if (track->isTerminated() || track->isStopped() || track->isPaused()) { 2108 // We have consumed all the buffers of this track. 2109 // Remove it from the list of active tracks. 2110 tracksToRemove->add(track); 2111 } else { 2112 // No buffers for this track. Give it a few chances to 2113 // fill a buffer, then remove it from active list. 2114 if (--(track->mRetryCount) <= 0) { 2115 LOGV("BUFFER TIMEOUT: remove(%d) from active list on thread %p", track->name(), this); 2116 tracksToRemove->add(track); 2117 // indicate to client process that the track was disabled because of underrun 2118 android_atomic_or(CBLK_DISABLED_ON, &cblk->flags); 2119 } else if (mixerStatus != MIXER_TRACKS_READY) { 2120 mixerStatus = MIXER_TRACKS_ENABLED; 2121 } 2122 } 2123 mAudioMixer->disable(AudioMixer::MIXING); 2124 } 2125 } 2126 2127 // remove all the tracks that need to be... 2128 count = tracksToRemove->size(); 2129 if (UNLIKELY(count)) { 2130 for (size_t i=0 ; i<count ; i++) { 2131 const sp<Track>& track = tracksToRemove->itemAt(i); 2132 mActiveTracks.remove(track); 2133 if (track->mainBuffer() != mMixBuffer) { 2134 chain = getEffectChain_l(track->sessionId()); 2135 if (chain != 0) { 2136 LOGV("stopping track on chain %p for session Id: %d", chain.get(), track->sessionId()); 2137 chain->decActiveTrackCnt(); 2138 } 2139 } 2140 if (track->isTerminated()) { 2141 removeTrack_l(track); 2142 } 2143 } 2144 } 2145 2146 // mix buffer must be cleared if all tracks are connected to an 2147 // effect chain as in this case the mixer will not write to 2148 // mix buffer and track effects will accumulate into it 2149 if (mixedTracks != 0 && mixedTracks == tracksWithEffect) { 2150 memset(mMixBuffer, 0, mFrameCount * mChannelCount * sizeof(int16_t)); 2151 } 2152 2153 return mixerStatus; 2154} 2155 2156void AudioFlinger::MixerThread::invalidateTracks(int streamType) 2157{ 2158 LOGV ("MixerThread::invalidateTracks() mixer %p, streamType %d, mTracks.size %d", 2159 this, streamType, mTracks.size()); 2160 Mutex::Autolock _l(mLock); 2161 2162 size_t size = mTracks.size(); 2163 for (size_t i = 0; i < size; i++) { 2164 sp<Track> t = mTracks[i]; 2165 if (t->type() == streamType) { 2166 android_atomic_or(CBLK_INVALID_ON, &t->mCblk->flags); 2167 t->mCblk->cv.signal(); 2168 } 2169 } 2170} 2171 2172 2173// getTrackName_l() must be called with ThreadBase::mLock held 2174int AudioFlinger::MixerThread::getTrackName_l() 2175{ 2176 return mAudioMixer->getTrackName(); 2177} 2178 2179// deleteTrackName_l() must be called with ThreadBase::mLock held 2180void AudioFlinger::MixerThread::deleteTrackName_l(int name) 2181{ 2182 LOGV("remove track (%d) and delete from mixer", name); 2183 mAudioMixer->deleteTrackName(name); 2184} 2185 2186// checkForNewParameters_l() must be called with ThreadBase::mLock held 2187bool AudioFlinger::MixerThread::checkForNewParameters_l() 2188{ 2189 bool reconfig = false; 2190 2191 while (!mNewParameters.isEmpty()) { 2192 status_t status = NO_ERROR; 2193 String8 keyValuePair = mNewParameters[0]; 2194 AudioParameter param = AudioParameter(keyValuePair); 2195 int value; 2196 2197 if (param.getInt(String8(AudioParameter::keySamplingRate), value) == NO_ERROR) { 2198 reconfig = true; 2199 } 2200 if (param.getInt(String8(AudioParameter::keyFormat), value) == NO_ERROR) { 2201 if (value != AUDIO_FORMAT_PCM_16_BIT) { 2202 status = BAD_VALUE; 2203 } else { 2204 reconfig = true; 2205 } 2206 } 2207 if (param.getInt(String8(AudioParameter::keyChannels), value) == NO_ERROR) { 2208 if (value != AUDIO_CHANNEL_OUT_STEREO) { 2209 status = BAD_VALUE; 2210 } else { 2211 reconfig = true; 2212 } 2213 } 2214 if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) { 2215 // do not accept frame count changes if tracks are open as the track buffer 2216 // size depends on frame count and correct behavior would not be garantied 2217 // if frame count is changed after track creation 2218 if (!mTracks.isEmpty()) { 2219 status = INVALID_OPERATION; 2220 } else { 2221 reconfig = true; 2222 } 2223 } 2224 if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) { 2225 // when changing the audio output device, call addBatteryData to notify 2226 // the change 2227 if ((int)mDevice != value) { 2228 uint32_t params = 0; 2229 // check whether speaker is on 2230 if (value & AUDIO_DEVICE_OUT_SPEAKER) { 2231 params |= IMediaPlayerService::kBatteryDataSpeakerOn; 2232 } 2233 2234 int deviceWithoutSpeaker 2235 = AUDIO_DEVICE_OUT_ALL & ~AUDIO_DEVICE_OUT_SPEAKER; 2236 // check if any other device (except speaker) is on 2237 if (value & deviceWithoutSpeaker ) { 2238 params |= IMediaPlayerService::kBatteryDataOtherAudioDeviceOn; 2239 } 2240 2241 if (params != 0) { 2242 addBatteryData(params); 2243 } 2244 } 2245 2246 // forward device change to effects that have requested to be 2247 // aware of attached audio device. 2248 mDevice = (uint32_t)value; 2249 for (size_t i = 0; i < mEffectChains.size(); i++) { 2250 mEffectChains[i]->setDevice_l(mDevice); 2251 } 2252 } 2253 2254 if (status == NO_ERROR) { 2255 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2256 keyValuePair.string()); 2257 if (!mStandby && status == INVALID_OPERATION) { 2258 mOutput->stream->common.standby(&mOutput->stream->common); 2259 mStandby = true; 2260 mBytesWritten = 0; 2261 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2262 keyValuePair.string()); 2263 } 2264 if (status == NO_ERROR && reconfig) { 2265 delete mAudioMixer; 2266 readOutputParameters(); 2267 mAudioMixer = new AudioMixer(mFrameCount, mSampleRate); 2268 for (size_t i = 0; i < mTracks.size() ; i++) { 2269 int name = getTrackName_l(); 2270 if (name < 0) break; 2271 mTracks[i]->mName = name; 2272 // limit track sample rate to 2 x new output sample rate 2273 if (mTracks[i]->mCblk->sampleRate > 2 * sampleRate()) { 2274 mTracks[i]->mCblk->sampleRate = 2 * sampleRate(); 2275 } 2276 } 2277 sendConfigEvent_l(AudioSystem::OUTPUT_CONFIG_CHANGED); 2278 } 2279 } 2280 2281 mNewParameters.removeAt(0); 2282 2283 mParamStatus = status; 2284 mParamCond.signal(); 2285 mWaitWorkCV.wait(mLock); 2286 } 2287 return reconfig; 2288} 2289 2290status_t AudioFlinger::MixerThread::dumpInternals(int fd, const Vector<String16>& args) 2291{ 2292 const size_t SIZE = 256; 2293 char buffer[SIZE]; 2294 String8 result; 2295 2296 PlaybackThread::dumpInternals(fd, args); 2297 2298 snprintf(buffer, SIZE, "AudioMixer tracks: %08x\n", mAudioMixer->trackNames()); 2299 result.append(buffer); 2300 write(fd, result.string(), result.size()); 2301 return NO_ERROR; 2302} 2303 2304uint32_t AudioFlinger::MixerThread::activeSleepTimeUs() 2305{ 2306 return (uint32_t)(mOutput->stream->get_latency(mOutput->stream) * 1000) / 2; 2307} 2308 2309uint32_t AudioFlinger::MixerThread::idleSleepTimeUs() 2310{ 2311 return (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000) / 2; 2312} 2313 2314uint32_t AudioFlinger::MixerThread::suspendSleepTimeUs() 2315{ 2316 return (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000); 2317} 2318 2319// ---------------------------------------------------------------------------- 2320AudioFlinger::DirectOutputThread::DirectOutputThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device) 2321 : PlaybackThread(audioFlinger, output, id, device) 2322{ 2323 mType = ThreadBase::DIRECT; 2324} 2325 2326AudioFlinger::DirectOutputThread::~DirectOutputThread() 2327{ 2328} 2329 2330 2331static inline int16_t clamp16(int32_t sample) 2332{ 2333 if ((sample>>15) ^ (sample>>31)) 2334 sample = 0x7FFF ^ (sample>>31); 2335 return sample; 2336} 2337 2338static inline 2339int32_t mul(int16_t in, int16_t v) 2340{ 2341#if defined(__arm__) && !defined(__thumb__) 2342 int32_t out; 2343 asm( "smulbb %[out], %[in], %[v] \n" 2344 : [out]"=r"(out) 2345 : [in]"%r"(in), [v]"r"(v) 2346 : ); 2347 return out; 2348#else 2349 return in * int32_t(v); 2350#endif 2351} 2352 2353void AudioFlinger::DirectOutputThread::applyVolume(uint16_t leftVol, uint16_t rightVol, bool ramp) 2354{ 2355 // Do not apply volume on compressed audio 2356 if (!audio_is_linear_pcm(mFormat)) { 2357 return; 2358 } 2359 2360 // convert to signed 16 bit before volume calculation 2361 if (mFormat == AUDIO_FORMAT_PCM_8_BIT) { 2362 size_t count = mFrameCount * mChannelCount; 2363 uint8_t *src = (uint8_t *)mMixBuffer + count-1; 2364 int16_t *dst = mMixBuffer + count-1; 2365 while(count--) { 2366 *dst-- = (int16_t)(*src--^0x80) << 8; 2367 } 2368 } 2369 2370 size_t frameCount = mFrameCount; 2371 int16_t *out = mMixBuffer; 2372 if (ramp) { 2373 if (mChannelCount == 1) { 2374 int32_t d = ((int32_t)leftVol - (int32_t)mLeftVolShort) << 16; 2375 int32_t vlInc = d / (int32_t)frameCount; 2376 int32_t vl = ((int32_t)mLeftVolShort << 16); 2377 do { 2378 out[0] = clamp16(mul(out[0], vl >> 16) >> 12); 2379 out++; 2380 vl += vlInc; 2381 } while (--frameCount); 2382 2383 } else { 2384 int32_t d = ((int32_t)leftVol - (int32_t)mLeftVolShort) << 16; 2385 int32_t vlInc = d / (int32_t)frameCount; 2386 d = ((int32_t)rightVol - (int32_t)mRightVolShort) << 16; 2387 int32_t vrInc = d / (int32_t)frameCount; 2388 int32_t vl = ((int32_t)mLeftVolShort << 16); 2389 int32_t vr = ((int32_t)mRightVolShort << 16); 2390 do { 2391 out[0] = clamp16(mul(out[0], vl >> 16) >> 12); 2392 out[1] = clamp16(mul(out[1], vr >> 16) >> 12); 2393 out += 2; 2394 vl += vlInc; 2395 vr += vrInc; 2396 } while (--frameCount); 2397 } 2398 } else { 2399 if (mChannelCount == 1) { 2400 do { 2401 out[0] = clamp16(mul(out[0], leftVol) >> 12); 2402 out++; 2403 } while (--frameCount); 2404 } else { 2405 do { 2406 out[0] = clamp16(mul(out[0], leftVol) >> 12); 2407 out[1] = clamp16(mul(out[1], rightVol) >> 12); 2408 out += 2; 2409 } while (--frameCount); 2410 } 2411 } 2412 2413 // convert back to unsigned 8 bit after volume calculation 2414 if (mFormat == AUDIO_FORMAT_PCM_8_BIT) { 2415 size_t count = mFrameCount * mChannelCount; 2416 int16_t *src = mMixBuffer; 2417 uint8_t *dst = (uint8_t *)mMixBuffer; 2418 while(count--) { 2419 *dst++ = (uint8_t)(((int32_t)*src++ + (1<<7)) >> 8)^0x80; 2420 } 2421 } 2422 2423 mLeftVolShort = leftVol; 2424 mRightVolShort = rightVol; 2425} 2426 2427bool AudioFlinger::DirectOutputThread::threadLoop() 2428{ 2429 uint32_t mixerStatus = MIXER_IDLE; 2430 sp<Track> trackToRemove; 2431 sp<Track> activeTrack; 2432 nsecs_t standbyTime = systemTime(); 2433 int8_t *curBuf; 2434 size_t mixBufferSize = mFrameCount*mFrameSize; 2435 uint32_t activeSleepTime = activeSleepTimeUs(); 2436 uint32_t idleSleepTime = idleSleepTimeUs(); 2437 uint32_t sleepTime = idleSleepTime; 2438 // use shorter standby delay as on normal output to release 2439 // hardware resources as soon as possible 2440 nsecs_t standbyDelay = microseconds(activeSleepTime*2); 2441 2442 acquireWakeLock(); 2443 2444 while (!exitPending()) 2445 { 2446 bool rampVolume; 2447 uint16_t leftVol; 2448 uint16_t rightVol; 2449 Vector< sp<EffectChain> > effectChains; 2450 2451 processConfigEvents(); 2452 2453 mixerStatus = MIXER_IDLE; 2454 2455 { // scope for the mLock 2456 2457 Mutex::Autolock _l(mLock); 2458 2459 if (checkForNewParameters_l()) { 2460 mixBufferSize = mFrameCount*mFrameSize; 2461 activeSleepTime = activeSleepTimeUs(); 2462 idleSleepTime = idleSleepTimeUs(); 2463 standbyDelay = microseconds(activeSleepTime*2); 2464 } 2465 2466 // put audio hardware into standby after short delay 2467 if UNLIKELY((!mActiveTracks.size() && systemTime() > standbyTime) || 2468 mSuspended) { 2469 // wait until we have something to do... 2470 if (!mStandby) { 2471 LOGV("Audio hardware entering standby, mixer %p\n", this); 2472 mOutput->stream->common.standby(&mOutput->stream->common); 2473 mStandby = true; 2474 mBytesWritten = 0; 2475 } 2476 2477 if (!mActiveTracks.size() && mConfigEvents.isEmpty()) { 2478 // we're about to wait, flush the binder command buffer 2479 IPCThreadState::self()->flushCommands(); 2480 2481 if (exitPending()) break; 2482 2483 releaseWakeLock_l(); 2484 LOGV("DirectOutputThread %p TID %d going to sleep\n", this, gettid()); 2485 mWaitWorkCV.wait(mLock); 2486 LOGV("DirectOutputThread %p TID %d waking up in active mode\n", this, gettid()); 2487 acquireWakeLock_l(); 2488 2489 if (mMasterMute == false) { 2490 char value[PROPERTY_VALUE_MAX]; 2491 property_get("ro.audio.silent", value, "0"); 2492 if (atoi(value)) { 2493 LOGD("Silence is golden"); 2494 setMasterMute(true); 2495 } 2496 } 2497 2498 standbyTime = systemTime() + standbyDelay; 2499 sleepTime = idleSleepTime; 2500 continue; 2501 } 2502 } 2503 2504 effectChains = mEffectChains; 2505 2506 // find out which tracks need to be processed 2507 if (mActiveTracks.size() != 0) { 2508 sp<Track> t = mActiveTracks[0].promote(); 2509 if (t == 0) continue; 2510 2511 Track* const track = t.get(); 2512 audio_track_cblk_t* cblk = track->cblk(); 2513 2514 // The first time a track is added we wait 2515 // for all its buffers to be filled before processing it 2516 if (cblk->framesReady() && track->isReady() && 2517 !track->isPaused() && !track->isTerminated()) 2518 { 2519 //LOGV("track %d u=%08x, s=%08x [OK]", track->name(), cblk->user, cblk->server); 2520 2521 if (track->mFillingUpStatus == Track::FS_FILLED) { 2522 track->mFillingUpStatus = Track::FS_ACTIVE; 2523 mLeftVolFloat = mRightVolFloat = 0; 2524 mLeftVolShort = mRightVolShort = 0; 2525 if (track->mState == TrackBase::RESUMING) { 2526 track->mState = TrackBase::ACTIVE; 2527 rampVolume = true; 2528 } 2529 } else if (cblk->server != 0) { 2530 // If the track is stopped before the first frame was mixed, 2531 // do not apply ramp 2532 rampVolume = true; 2533 } 2534 // compute volume for this track 2535 float left, right; 2536 if (track->isMuted() || mMasterMute || track->isPausing() || 2537 mStreamTypes[track->type()].mute) { 2538 left = right = 0; 2539 if (track->isPausing()) { 2540 track->setPaused(); 2541 } 2542 } else { 2543 float typeVolume = mStreamTypes[track->type()].volume; 2544 float v = mMasterVolume * typeVolume; 2545 float v_clamped = v * cblk->volume[0]; 2546 if (v_clamped > MAX_GAIN) v_clamped = MAX_GAIN; 2547 left = v_clamped/MAX_GAIN; 2548 v_clamped = v * cblk->volume[1]; 2549 if (v_clamped > MAX_GAIN) v_clamped = MAX_GAIN; 2550 right = v_clamped/MAX_GAIN; 2551 } 2552 2553 if (left != mLeftVolFloat || right != mRightVolFloat) { 2554 mLeftVolFloat = left; 2555 mRightVolFloat = right; 2556 2557 // If audio HAL implements volume control, 2558 // force software volume to nominal value 2559 if (mOutput->stream->set_volume(mOutput->stream, left, right) == NO_ERROR) { 2560 left = 1.0f; 2561 right = 1.0f; 2562 } 2563 2564 // Convert volumes from float to 8.24 2565 uint32_t vl = (uint32_t)(left * (1 << 24)); 2566 uint32_t vr = (uint32_t)(right * (1 << 24)); 2567 2568 // Delegate volume control to effect in track effect chain if needed 2569 // only one effect chain can be present on DirectOutputThread, so if 2570 // there is one, the track is connected to it 2571 if (!effectChains.isEmpty()) { 2572 // Do not ramp volume if volume is controlled by effect 2573 if(effectChains[0]->setVolume_l(&vl, &vr)) { 2574 rampVolume = false; 2575 } 2576 } 2577 2578 // Convert volumes from 8.24 to 4.12 format 2579 uint32_t v_clamped = (vl + (1 << 11)) >> 12; 2580 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2581 leftVol = (uint16_t)v_clamped; 2582 v_clamped = (vr + (1 << 11)) >> 12; 2583 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2584 rightVol = (uint16_t)v_clamped; 2585 } else { 2586 leftVol = mLeftVolShort; 2587 rightVol = mRightVolShort; 2588 rampVolume = false; 2589 } 2590 2591 // reset retry count 2592 track->mRetryCount = kMaxTrackRetriesDirect; 2593 activeTrack = t; 2594 mixerStatus = MIXER_TRACKS_READY; 2595 } else { 2596 //LOGV("track %d u=%08x, s=%08x [NOT READY]", track->name(), cblk->user, cblk->server); 2597 if (track->isStopped()) { 2598 track->reset(); 2599 } 2600 if (track->isTerminated() || track->isStopped() || track->isPaused()) { 2601 // We have consumed all the buffers of this track. 2602 // Remove it from the list of active tracks. 2603 trackToRemove = track; 2604 } else { 2605 // No buffers for this track. Give it a few chances to 2606 // fill a buffer, then remove it from active list. 2607 if (--(track->mRetryCount) <= 0) { 2608 LOGV("BUFFER TIMEOUT: remove(%d) from active list", track->name()); 2609 trackToRemove = track; 2610 } else { 2611 mixerStatus = MIXER_TRACKS_ENABLED; 2612 } 2613 } 2614 } 2615 } 2616 2617 // remove all the tracks that need to be... 2618 if (UNLIKELY(trackToRemove != 0)) { 2619 mActiveTracks.remove(trackToRemove); 2620 if (!effectChains.isEmpty()) { 2621 LOGV("stopping track on chain %p for session Id: %d", effectChains[0].get(), 2622 trackToRemove->sessionId()); 2623 effectChains[0]->decActiveTrackCnt(); 2624 } 2625 if (trackToRemove->isTerminated()) { 2626 removeTrack_l(trackToRemove); 2627 } 2628 } 2629 2630 lockEffectChains_l(effectChains); 2631 } 2632 2633 if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) { 2634 AudioBufferProvider::Buffer buffer; 2635 size_t frameCount = mFrameCount; 2636 curBuf = (int8_t *)mMixBuffer; 2637 // output audio to hardware 2638 while (frameCount) { 2639 buffer.frameCount = frameCount; 2640 activeTrack->getNextBuffer(&buffer); 2641 if (UNLIKELY(buffer.raw == 0)) { 2642 memset(curBuf, 0, frameCount * mFrameSize); 2643 break; 2644 } 2645 memcpy(curBuf, buffer.raw, buffer.frameCount * mFrameSize); 2646 frameCount -= buffer.frameCount; 2647 curBuf += buffer.frameCount * mFrameSize; 2648 activeTrack->releaseBuffer(&buffer); 2649 } 2650 sleepTime = 0; 2651 standbyTime = systemTime() + standbyDelay; 2652 } else { 2653 if (sleepTime == 0) { 2654 if (mixerStatus == MIXER_TRACKS_ENABLED) { 2655 sleepTime = activeSleepTime; 2656 } else { 2657 sleepTime = idleSleepTime; 2658 } 2659 } else if (mBytesWritten != 0 && audio_is_linear_pcm(mFormat)) { 2660 memset (mMixBuffer, 0, mFrameCount * mFrameSize); 2661 sleepTime = 0; 2662 } 2663 } 2664 2665 if (mSuspended) { 2666 sleepTime = suspendSleepTimeUs(); 2667 } 2668 // sleepTime == 0 means we must write to audio hardware 2669 if (sleepTime == 0) { 2670 if (mixerStatus == MIXER_TRACKS_READY) { 2671 applyVolume(leftVol, rightVol, rampVolume); 2672 } 2673 for (size_t i = 0; i < effectChains.size(); i ++) { 2674 effectChains[i]->process_l(); 2675 } 2676 unlockEffectChains(effectChains); 2677 2678 mLastWriteTime = systemTime(); 2679 mInWrite = true; 2680 mBytesWritten += mixBufferSize; 2681 int bytesWritten = (int)mOutput->stream->write(mOutput->stream, mMixBuffer, mixBufferSize); 2682 if (bytesWritten < 0) mBytesWritten -= mixBufferSize; 2683 mNumWrites++; 2684 mInWrite = false; 2685 mStandby = false; 2686 } else { 2687 unlockEffectChains(effectChains); 2688 usleep(sleepTime); 2689 } 2690 2691 // finally let go of removed track, without the lock held 2692 // since we can't guarantee the destructors won't acquire that 2693 // same lock. 2694 trackToRemove.clear(); 2695 activeTrack.clear(); 2696 2697 // Effect chains will be actually deleted here if they were removed from 2698 // mEffectChains list during mixing or effects processing 2699 effectChains.clear(); 2700 } 2701 2702 if (!mStandby) { 2703 mOutput->stream->common.standby(&mOutput->stream->common); 2704 } 2705 2706 releaseWakeLock(); 2707 2708 LOGV("DirectOutputThread %p exiting", this); 2709 return false; 2710} 2711 2712// getTrackName_l() must be called with ThreadBase::mLock held 2713int AudioFlinger::DirectOutputThread::getTrackName_l() 2714{ 2715 return 0; 2716} 2717 2718// deleteTrackName_l() must be called with ThreadBase::mLock held 2719void AudioFlinger::DirectOutputThread::deleteTrackName_l(int name) 2720{ 2721} 2722 2723// checkForNewParameters_l() must be called with ThreadBase::mLock held 2724bool AudioFlinger::DirectOutputThread::checkForNewParameters_l() 2725{ 2726 bool reconfig = false; 2727 2728 while (!mNewParameters.isEmpty()) { 2729 status_t status = NO_ERROR; 2730 String8 keyValuePair = mNewParameters[0]; 2731 AudioParameter param = AudioParameter(keyValuePair); 2732 int value; 2733 2734 if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) { 2735 // do not accept frame count changes if tracks are open as the track buffer 2736 // size depends on frame count and correct behavior would not be garantied 2737 // if frame count is changed after track creation 2738 if (!mTracks.isEmpty()) { 2739 status = INVALID_OPERATION; 2740 } else { 2741 reconfig = true; 2742 } 2743 } 2744 if (status == NO_ERROR) { 2745 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2746 keyValuePair.string()); 2747 if (!mStandby && status == INVALID_OPERATION) { 2748 mOutput->stream->common.standby(&mOutput->stream->common); 2749 mStandby = true; 2750 mBytesWritten = 0; 2751 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2752 keyValuePair.string()); 2753 } 2754 if (status == NO_ERROR && reconfig) { 2755 readOutputParameters(); 2756 sendConfigEvent_l(AudioSystem::OUTPUT_CONFIG_CHANGED); 2757 } 2758 } 2759 2760 mNewParameters.removeAt(0); 2761 2762 mParamStatus = status; 2763 mParamCond.signal(); 2764 mWaitWorkCV.wait(mLock); 2765 } 2766 return reconfig; 2767} 2768 2769uint32_t AudioFlinger::DirectOutputThread::activeSleepTimeUs() 2770{ 2771 uint32_t time; 2772 if (audio_is_linear_pcm(mFormat)) { 2773 time = (uint32_t)(mOutput->stream->get_latency(mOutput->stream) * 1000) / 2; 2774 } else { 2775 time = 10000; 2776 } 2777 return time; 2778} 2779 2780uint32_t AudioFlinger::DirectOutputThread::idleSleepTimeUs() 2781{ 2782 uint32_t time; 2783 if (audio_is_linear_pcm(mFormat)) { 2784 time = (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000) / 2; 2785 } else { 2786 time = 10000; 2787 } 2788 return time; 2789} 2790 2791uint32_t AudioFlinger::DirectOutputThread::suspendSleepTimeUs() 2792{ 2793 uint32_t time; 2794 if (audio_is_linear_pcm(mFormat)) { 2795 time = (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000); 2796 } else { 2797 time = 10000; 2798 } 2799 return time; 2800} 2801 2802 2803// ---------------------------------------------------------------------------- 2804 2805AudioFlinger::DuplicatingThread::DuplicatingThread(const sp<AudioFlinger>& audioFlinger, AudioFlinger::MixerThread* mainThread, int id) 2806 : MixerThread(audioFlinger, mainThread->getOutput(), id, mainThread->device()), mWaitTimeMs(UINT_MAX) 2807{ 2808 mType = ThreadBase::DUPLICATING; 2809 addOutputTrack(mainThread); 2810} 2811 2812AudioFlinger::DuplicatingThread::~DuplicatingThread() 2813{ 2814 for (size_t i = 0; i < mOutputTracks.size(); i++) { 2815 mOutputTracks[i]->destroy(); 2816 } 2817 mOutputTracks.clear(); 2818} 2819 2820bool AudioFlinger::DuplicatingThread::threadLoop() 2821{ 2822 Vector< sp<Track> > tracksToRemove; 2823 uint32_t mixerStatus = MIXER_IDLE; 2824 nsecs_t standbyTime = systemTime(); 2825 size_t mixBufferSize = mFrameCount*mFrameSize; 2826 SortedVector< sp<OutputTrack> > outputTracks; 2827 uint32_t writeFrames = 0; 2828 uint32_t activeSleepTime = activeSleepTimeUs(); 2829 uint32_t idleSleepTime = idleSleepTimeUs(); 2830 uint32_t sleepTime = idleSleepTime; 2831 Vector< sp<EffectChain> > effectChains; 2832 2833 acquireWakeLock(); 2834 2835 while (!exitPending()) 2836 { 2837 processConfigEvents(); 2838 2839 mixerStatus = MIXER_IDLE; 2840 { // scope for the mLock 2841 2842 Mutex::Autolock _l(mLock); 2843 2844 if (checkForNewParameters_l()) { 2845 mixBufferSize = mFrameCount*mFrameSize; 2846 updateWaitTime(); 2847 activeSleepTime = activeSleepTimeUs(); 2848 idleSleepTime = idleSleepTimeUs(); 2849 } 2850 2851 const SortedVector< wp<Track> >& activeTracks = mActiveTracks; 2852 2853 for (size_t i = 0; i < mOutputTracks.size(); i++) { 2854 outputTracks.add(mOutputTracks[i]); 2855 } 2856 2857 // put audio hardware into standby after short delay 2858 if UNLIKELY((!activeTracks.size() && systemTime() > standbyTime) || 2859 mSuspended) { 2860 if (!mStandby) { 2861 for (size_t i = 0; i < outputTracks.size(); i++) { 2862 outputTracks[i]->stop(); 2863 } 2864 mStandby = true; 2865 mBytesWritten = 0; 2866 } 2867 2868 if (!activeTracks.size() && mConfigEvents.isEmpty()) { 2869 // we're about to wait, flush the binder command buffer 2870 IPCThreadState::self()->flushCommands(); 2871 outputTracks.clear(); 2872 2873 if (exitPending()) break; 2874 2875 releaseWakeLock_l(); 2876 LOGV("DuplicatingThread %p TID %d going to sleep\n", this, gettid()); 2877 mWaitWorkCV.wait(mLock); 2878 LOGV("DuplicatingThread %p TID %d waking up\n", this, gettid()); 2879 acquireWakeLock_l(); 2880 2881 if (mMasterMute == false) { 2882 char value[PROPERTY_VALUE_MAX]; 2883 property_get("ro.audio.silent", value, "0"); 2884 if (atoi(value)) { 2885 LOGD("Silence is golden"); 2886 setMasterMute(true); 2887 } 2888 } 2889 2890 standbyTime = systemTime() + kStandbyTimeInNsecs; 2891 sleepTime = idleSleepTime; 2892 continue; 2893 } 2894 } 2895 2896 mixerStatus = prepareTracks_l(activeTracks, &tracksToRemove); 2897 2898 // prevent any changes in effect chain list and in each effect chain 2899 // during mixing and effect process as the audio buffers could be deleted 2900 // or modified if an effect is created or deleted 2901 lockEffectChains_l(effectChains); 2902 } 2903 2904 if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) { 2905 // mix buffers... 2906 if (outputsReady(outputTracks)) { 2907 mAudioMixer->process(); 2908 } else { 2909 memset(mMixBuffer, 0, mixBufferSize); 2910 } 2911 sleepTime = 0; 2912 writeFrames = mFrameCount; 2913 } else { 2914 if (sleepTime == 0) { 2915 if (mixerStatus == MIXER_TRACKS_ENABLED) { 2916 sleepTime = activeSleepTime; 2917 } else { 2918 sleepTime = idleSleepTime; 2919 } 2920 } else if (mBytesWritten != 0) { 2921 // flush remaining overflow buffers in output tracks 2922 for (size_t i = 0; i < outputTracks.size(); i++) { 2923 if (outputTracks[i]->isActive()) { 2924 sleepTime = 0; 2925 writeFrames = 0; 2926 memset(mMixBuffer, 0, mixBufferSize); 2927 break; 2928 } 2929 } 2930 } 2931 } 2932 2933 if (mSuspended) { 2934 sleepTime = suspendSleepTimeUs(); 2935 } 2936 // sleepTime == 0 means we must write to audio hardware 2937 if (sleepTime == 0) { 2938 for (size_t i = 0; i < effectChains.size(); i ++) { 2939 effectChains[i]->process_l(); 2940 } 2941 // enable changes in effect chain 2942 unlockEffectChains(effectChains); 2943 2944 standbyTime = systemTime() + kStandbyTimeInNsecs; 2945 for (size_t i = 0; i < outputTracks.size(); i++) { 2946 outputTracks[i]->write(mMixBuffer, writeFrames); 2947 } 2948 mStandby = false; 2949 mBytesWritten += mixBufferSize; 2950 } else { 2951 // enable changes in effect chain 2952 unlockEffectChains(effectChains); 2953 usleep(sleepTime); 2954 } 2955 2956 // finally let go of all our tracks, without the lock held 2957 // since we can't guarantee the destructors won't acquire that 2958 // same lock. 2959 tracksToRemove.clear(); 2960 outputTracks.clear(); 2961 2962 // Effect chains will be actually deleted here if they were removed from 2963 // mEffectChains list during mixing or effects processing 2964 effectChains.clear(); 2965 } 2966 2967 releaseWakeLock(); 2968 2969 return false; 2970} 2971 2972void AudioFlinger::DuplicatingThread::addOutputTrack(MixerThread *thread) 2973{ 2974 int frameCount = (3 * mFrameCount * mSampleRate) / thread->sampleRate(); 2975 OutputTrack *outputTrack = new OutputTrack((ThreadBase *)thread, 2976 this, 2977 mSampleRate, 2978 mFormat, 2979 mChannelMask, 2980 frameCount); 2981 if (outputTrack->cblk() != NULL) { 2982 thread->setStreamVolume(AUDIO_STREAM_CNT, 1.0f); 2983 mOutputTracks.add(outputTrack); 2984 LOGV("addOutputTrack() track %p, on thread %p", outputTrack, thread); 2985 updateWaitTime(); 2986 } 2987} 2988 2989void AudioFlinger::DuplicatingThread::removeOutputTrack(MixerThread *thread) 2990{ 2991 Mutex::Autolock _l(mLock); 2992 for (size_t i = 0; i < mOutputTracks.size(); i++) { 2993 if (mOutputTracks[i]->thread() == (ThreadBase *)thread) { 2994 mOutputTracks[i]->destroy(); 2995 mOutputTracks.removeAt(i); 2996 updateWaitTime(); 2997 return; 2998 } 2999 } 3000 LOGV("removeOutputTrack(): unkonwn thread: %p", thread); 3001} 3002 3003void AudioFlinger::DuplicatingThread::updateWaitTime() 3004{ 3005 mWaitTimeMs = UINT_MAX; 3006 for (size_t i = 0; i < mOutputTracks.size(); i++) { 3007 sp<ThreadBase> strong = mOutputTracks[i]->thread().promote(); 3008 if (strong != NULL) { 3009 uint32_t waitTimeMs = (strong->frameCount() * 2 * 1000) / strong->sampleRate(); 3010 if (waitTimeMs < mWaitTimeMs) { 3011 mWaitTimeMs = waitTimeMs; 3012 } 3013 } 3014 } 3015} 3016 3017 3018bool AudioFlinger::DuplicatingThread::outputsReady(SortedVector< sp<OutputTrack> > &outputTracks) 3019{ 3020 for (size_t i = 0; i < outputTracks.size(); i++) { 3021 sp <ThreadBase> thread = outputTracks[i]->thread().promote(); 3022 if (thread == 0) { 3023 LOGW("DuplicatingThread::outputsReady() could not promote thread on output track %p", outputTracks[i].get()); 3024 return false; 3025 } 3026 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3027 if (playbackThread->standby() && !playbackThread->isSuspended()) { 3028 LOGV("DuplicatingThread output track %p on thread %p Not Ready", outputTracks[i].get(), thread.get()); 3029 return false; 3030 } 3031 } 3032 return true; 3033} 3034 3035uint32_t AudioFlinger::DuplicatingThread::activeSleepTimeUs() 3036{ 3037 return (mWaitTimeMs * 1000) / 2; 3038} 3039 3040// ---------------------------------------------------------------------------- 3041 3042// TrackBase constructor must be called with AudioFlinger::mLock held 3043AudioFlinger::ThreadBase::TrackBase::TrackBase( 3044 const wp<ThreadBase>& thread, 3045 const sp<Client>& client, 3046 uint32_t sampleRate, 3047 uint32_t format, 3048 uint32_t channelMask, 3049 int frameCount, 3050 uint32_t flags, 3051 const sp<IMemory>& sharedBuffer, 3052 int sessionId) 3053 : RefBase(), 3054 mThread(thread), 3055 mClient(client), 3056 mCblk(0), 3057 mFrameCount(0), 3058 mState(IDLE), 3059 mClientTid(-1), 3060 mFormat(format), 3061 mFlags(flags & ~SYSTEM_FLAGS_MASK), 3062 mSessionId(sessionId) 3063{ 3064 LOGV_IF(sharedBuffer != 0, "sharedBuffer: %p, size: %d", sharedBuffer->pointer(), sharedBuffer->size()); 3065 3066 // LOGD("Creating track with %d buffers @ %d bytes", bufferCount, bufferSize); 3067 size_t size = sizeof(audio_track_cblk_t); 3068 uint8_t channelCount = popcount(channelMask); 3069 size_t bufferSize = frameCount*channelCount*sizeof(int16_t); 3070 if (sharedBuffer == 0) { 3071 size += bufferSize; 3072 } 3073 3074 if (client != NULL) { 3075 mCblkMemory = client->heap()->allocate(size); 3076 if (mCblkMemory != 0) { 3077 mCblk = static_cast<audio_track_cblk_t *>(mCblkMemory->pointer()); 3078 if (mCblk) { // construct the shared structure in-place. 3079 new(mCblk) audio_track_cblk_t(); 3080 // clear all buffers 3081 mCblk->frameCount = frameCount; 3082 mCblk->sampleRate = sampleRate; 3083 mChannelCount = channelCount; 3084 mChannelMask = channelMask; 3085 if (sharedBuffer == 0) { 3086 mBuffer = (char*)mCblk + sizeof(audio_track_cblk_t); 3087 memset(mBuffer, 0, frameCount*channelCount*sizeof(int16_t)); 3088 // Force underrun condition to avoid false underrun callback until first data is 3089 // written to buffer (other flags are cleared) 3090 mCblk->flags = CBLK_UNDERRUN_ON; 3091 } else { 3092 mBuffer = sharedBuffer->pointer(); 3093 } 3094 mBufferEnd = (uint8_t *)mBuffer + bufferSize; 3095 } 3096 } else { 3097 LOGE("not enough memory for AudioTrack size=%u", size); 3098 client->heap()->dump("AudioTrack"); 3099 return; 3100 } 3101 } else { 3102 mCblk = (audio_track_cblk_t *)(new uint8_t[size]); 3103 if (mCblk) { // construct the shared structure in-place. 3104 new(mCblk) audio_track_cblk_t(); 3105 // clear all buffers 3106 mCblk->frameCount = frameCount; 3107 mCblk->sampleRate = sampleRate; 3108 mChannelCount = channelCount; 3109 mChannelMask = channelMask; 3110 mBuffer = (char*)mCblk + sizeof(audio_track_cblk_t); 3111 memset(mBuffer, 0, frameCount*channelCount*sizeof(int16_t)); 3112 // Force underrun condition to avoid false underrun callback until first data is 3113 // written to buffer (other flags are cleared) 3114 mCblk->flags = CBLK_UNDERRUN_ON; 3115 mBufferEnd = (uint8_t *)mBuffer + bufferSize; 3116 } 3117 } 3118} 3119 3120AudioFlinger::ThreadBase::TrackBase::~TrackBase() 3121{ 3122 if (mCblk) { 3123 mCblk->~audio_track_cblk_t(); // destroy our shared-structure. 3124 if (mClient == NULL) { 3125 delete mCblk; 3126 } 3127 } 3128 mCblkMemory.clear(); // and free the shared memory 3129 if (mClient != NULL) { 3130 Mutex::Autolock _l(mClient->audioFlinger()->mLock); 3131 mClient.clear(); 3132 } 3133} 3134 3135void AudioFlinger::ThreadBase::TrackBase::releaseBuffer(AudioBufferProvider::Buffer* buffer) 3136{ 3137 buffer->raw = 0; 3138 mFrameCount = buffer->frameCount; 3139 step(); 3140 buffer->frameCount = 0; 3141} 3142 3143bool AudioFlinger::ThreadBase::TrackBase::step() { 3144 bool result; 3145 audio_track_cblk_t* cblk = this->cblk(); 3146 3147 result = cblk->stepServer(mFrameCount); 3148 if (!result) { 3149 LOGV("stepServer failed acquiring cblk mutex"); 3150 mFlags |= STEPSERVER_FAILED; 3151 } 3152 return result; 3153} 3154 3155void AudioFlinger::ThreadBase::TrackBase::reset() { 3156 audio_track_cblk_t* cblk = this->cblk(); 3157 3158 cblk->user = 0; 3159 cblk->server = 0; 3160 cblk->userBase = 0; 3161 cblk->serverBase = 0; 3162 mFlags &= (uint32_t)(~SYSTEM_FLAGS_MASK); 3163 LOGV("TrackBase::reset"); 3164} 3165 3166sp<IMemory> AudioFlinger::ThreadBase::TrackBase::getCblk() const 3167{ 3168 return mCblkMemory; 3169} 3170 3171int AudioFlinger::ThreadBase::TrackBase::sampleRate() const { 3172 return (int)mCblk->sampleRate; 3173} 3174 3175int AudioFlinger::ThreadBase::TrackBase::channelCount() const { 3176 return (const int)mChannelCount; 3177} 3178 3179uint32_t AudioFlinger::ThreadBase::TrackBase::channelMask() const { 3180 return mChannelMask; 3181} 3182 3183void* AudioFlinger::ThreadBase::TrackBase::getBuffer(uint32_t offset, uint32_t frames) const { 3184 audio_track_cblk_t* cblk = this->cblk(); 3185 int8_t *bufferStart = (int8_t *)mBuffer + (offset-cblk->serverBase)*cblk->frameSize; 3186 int8_t *bufferEnd = bufferStart + frames * cblk->frameSize; 3187 3188 // Check validity of returned pointer in case the track control block would have been corrupted. 3189 if (bufferStart < mBuffer || bufferStart > bufferEnd || bufferEnd > mBufferEnd || 3190 ((unsigned long)bufferStart & (unsigned long)(cblk->frameSize - 1))) { 3191 LOGE("TrackBase::getBuffer buffer out of range:\n start: %p, end %p , mBuffer %p mBufferEnd %p\n \ 3192 server %d, serverBase %d, user %d, userBase %d", 3193 bufferStart, bufferEnd, mBuffer, mBufferEnd, 3194 cblk->server, cblk->serverBase, cblk->user, cblk->userBase); 3195 return 0; 3196 } 3197 3198 return bufferStart; 3199} 3200 3201// ---------------------------------------------------------------------------- 3202 3203// Track constructor must be called with AudioFlinger::mLock and ThreadBase::mLock held 3204AudioFlinger::PlaybackThread::Track::Track( 3205 const wp<ThreadBase>& thread, 3206 const sp<Client>& client, 3207 int streamType, 3208 uint32_t sampleRate, 3209 uint32_t format, 3210 uint32_t channelMask, 3211 int frameCount, 3212 const sp<IMemory>& sharedBuffer, 3213 int sessionId) 3214 : TrackBase(thread, client, sampleRate, format, channelMask, frameCount, 0, sharedBuffer, sessionId), 3215 mMute(false), mSharedBuffer(sharedBuffer), mName(-1), mMainBuffer(NULL), mAuxBuffer(NULL), 3216 mAuxEffectId(0), mHasVolumeController(false) 3217{ 3218 if (mCblk != NULL) { 3219 sp<ThreadBase> baseThread = thread.promote(); 3220 if (baseThread != 0) { 3221 PlaybackThread *playbackThread = (PlaybackThread *)baseThread.get(); 3222 mName = playbackThread->getTrackName_l(); 3223 mMainBuffer = playbackThread->mixBuffer(); 3224 } 3225 LOGV("Track constructor name %d, calling thread %d", mName, IPCThreadState::self()->getCallingPid()); 3226 if (mName < 0) { 3227 LOGE("no more track names available"); 3228 } 3229 mVolume[0] = 1.0f; 3230 mVolume[1] = 1.0f; 3231 mStreamType = streamType; 3232 // NOTE: audio_track_cblk_t::frameSize for 8 bit PCM data is based on a sample size of 3233 // 16 bit because data is converted to 16 bit before being stored in buffer by AudioTrack 3234 mCblk->frameSize = audio_is_linear_pcm(format) ? mChannelCount * sizeof(int16_t) : sizeof(uint8_t); 3235 } 3236} 3237 3238AudioFlinger::PlaybackThread::Track::~Track() 3239{ 3240 LOGV("PlaybackThread::Track destructor"); 3241 sp<ThreadBase> thread = mThread.promote(); 3242 if (thread != 0) { 3243 Mutex::Autolock _l(thread->mLock); 3244 mState = TERMINATED; 3245 } 3246} 3247 3248void AudioFlinger::PlaybackThread::Track::destroy() 3249{ 3250 // NOTE: destroyTrack_l() can remove a strong reference to this Track 3251 // by removing it from mTracks vector, so there is a risk that this Tracks's 3252 // desctructor is called. As the destructor needs to lock mLock, 3253 // we must acquire a strong reference on this Track before locking mLock 3254 // here so that the destructor is called only when exiting this function. 3255 // On the other hand, as long as Track::destroy() is only called by 3256 // TrackHandle destructor, the TrackHandle still holds a strong ref on 3257 // this Track with its member mTrack. 3258 sp<Track> keep(this); 3259 { // scope for mLock 3260 sp<ThreadBase> thread = mThread.promote(); 3261 if (thread != 0) { 3262 if (!isOutputTrack()) { 3263 if (mState == ACTIVE || mState == RESUMING) { 3264 AudioSystem::stopOutput(thread->id(), 3265 (audio_stream_type_t)mStreamType, 3266 mSessionId); 3267 3268 // to track the speaker usage 3269 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop); 3270 } 3271 AudioSystem::releaseOutput(thread->id()); 3272 } 3273 Mutex::Autolock _l(thread->mLock); 3274 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3275 playbackThread->destroyTrack_l(this); 3276 } 3277 } 3278} 3279 3280void AudioFlinger::PlaybackThread::Track::dump(char* buffer, size_t size) 3281{ 3282 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", 3283 mName - AudioMixer::TRACK0, 3284 (mClient == NULL) ? getpid() : mClient->pid(), 3285 mStreamType, 3286 mFormat, 3287 mChannelMask, 3288 mSessionId, 3289 mFrameCount, 3290 mState, 3291 mMute, 3292 mFillingUpStatus, 3293 mCblk->sampleRate, 3294 mCblk->volume[0], 3295 mCblk->volume[1], 3296 mCblk->server, 3297 mCblk->user, 3298 (int)mMainBuffer, 3299 (int)mAuxBuffer); 3300} 3301 3302status_t AudioFlinger::PlaybackThread::Track::getNextBuffer(AudioBufferProvider::Buffer* buffer) 3303{ 3304 audio_track_cblk_t* cblk = this->cblk(); 3305 uint32_t framesReady; 3306 uint32_t framesReq = buffer->frameCount; 3307 3308 // Check if last stepServer failed, try to step now 3309 if (mFlags & TrackBase::STEPSERVER_FAILED) { 3310 if (!step()) goto getNextBuffer_exit; 3311 LOGV("stepServer recovered"); 3312 mFlags &= ~TrackBase::STEPSERVER_FAILED; 3313 } 3314 3315 framesReady = cblk->framesReady(); 3316 3317 if (LIKELY(framesReady)) { 3318 uint32_t s = cblk->server; 3319 uint32_t bufferEnd = cblk->serverBase + cblk->frameCount; 3320 3321 bufferEnd = (cblk->loopEnd < bufferEnd) ? cblk->loopEnd : bufferEnd; 3322 if (framesReq > framesReady) { 3323 framesReq = framesReady; 3324 } 3325 if (s + framesReq > bufferEnd) { 3326 framesReq = bufferEnd - s; 3327 } 3328 3329 buffer->raw = getBuffer(s, framesReq); 3330 if (buffer->raw == 0) goto getNextBuffer_exit; 3331 3332 buffer->frameCount = framesReq; 3333 return NO_ERROR; 3334 } 3335 3336getNextBuffer_exit: 3337 buffer->raw = 0; 3338 buffer->frameCount = 0; 3339 LOGV("getNextBuffer() no more data for track %d on thread %p", mName, mThread.unsafe_get()); 3340 return NOT_ENOUGH_DATA; 3341} 3342 3343bool AudioFlinger::PlaybackThread::Track::isReady() const { 3344 if (mFillingUpStatus != FS_FILLING || isStopped() || isPausing()) return true; 3345 3346 if (mCblk->framesReady() >= mCblk->frameCount || 3347 (mCblk->flags & CBLK_FORCEREADY_MSK)) { 3348 mFillingUpStatus = FS_FILLED; 3349 android_atomic_and(~CBLK_FORCEREADY_MSK, &mCblk->flags); 3350 return true; 3351 } 3352 return false; 3353} 3354 3355status_t AudioFlinger::PlaybackThread::Track::start() 3356{ 3357 status_t status = NO_ERROR; 3358 LOGV("start(%d), calling thread %d session %d", 3359 mName, IPCThreadState::self()->getCallingPid(), mSessionId); 3360 sp<ThreadBase> thread = mThread.promote(); 3361 if (thread != 0) { 3362 Mutex::Autolock _l(thread->mLock); 3363 int state = mState; 3364 // here the track could be either new, or restarted 3365 // in both cases "unstop" the track 3366 if (mState == PAUSED) { 3367 mState = TrackBase::RESUMING; 3368 LOGV("PAUSED => RESUMING (%d) on thread %p", mName, this); 3369 } else { 3370 mState = TrackBase::ACTIVE; 3371 LOGV("? => ACTIVE (%d) on thread %p", mName, this); 3372 } 3373 3374 if (!isOutputTrack() && state != ACTIVE && state != RESUMING) { 3375 thread->mLock.unlock(); 3376 status = AudioSystem::startOutput(thread->id(), 3377 (audio_stream_type_t)mStreamType, 3378 mSessionId); 3379 thread->mLock.lock(); 3380 3381 // to track the speaker usage 3382 if (status == NO_ERROR) { 3383 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStart); 3384 } 3385 } 3386 if (status == NO_ERROR) { 3387 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3388 playbackThread->addTrack_l(this); 3389 } else { 3390 mState = state; 3391 } 3392 } else { 3393 status = BAD_VALUE; 3394 } 3395 return status; 3396} 3397 3398void AudioFlinger::PlaybackThread::Track::stop() 3399{ 3400 LOGV("stop(%d), calling thread %d", mName, IPCThreadState::self()->getCallingPid()); 3401 sp<ThreadBase> thread = mThread.promote(); 3402 if (thread != 0) { 3403 Mutex::Autolock _l(thread->mLock); 3404 int state = mState; 3405 if (mState > STOPPED) { 3406 mState = STOPPED; 3407 // If the track is not active (PAUSED and buffers full), flush buffers 3408 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3409 if (playbackThread->mActiveTracks.indexOf(this) < 0) { 3410 reset(); 3411 } 3412 LOGV("(> STOPPED) => STOPPED (%d) on thread %p", mName, playbackThread); 3413 } 3414 if (!isOutputTrack() && (state == ACTIVE || state == RESUMING)) { 3415 thread->mLock.unlock(); 3416 AudioSystem::stopOutput(thread->id(), 3417 (audio_stream_type_t)mStreamType, 3418 mSessionId); 3419 thread->mLock.lock(); 3420 3421 // to track the speaker usage 3422 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop); 3423 } 3424 } 3425} 3426 3427void AudioFlinger::PlaybackThread::Track::pause() 3428{ 3429 LOGV("pause(%d), calling thread %d", mName, IPCThreadState::self()->getCallingPid()); 3430 sp<ThreadBase> thread = mThread.promote(); 3431 if (thread != 0) { 3432 Mutex::Autolock _l(thread->mLock); 3433 if (mState == ACTIVE || mState == RESUMING) { 3434 mState = PAUSING; 3435 LOGV("ACTIVE/RESUMING => PAUSING (%d) on thread %p", mName, thread.get()); 3436 if (!isOutputTrack()) { 3437 thread->mLock.unlock(); 3438 AudioSystem::stopOutput(thread->id(), 3439 (audio_stream_type_t)mStreamType, 3440 mSessionId); 3441 thread->mLock.lock(); 3442 3443 // to track the speaker usage 3444 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop); 3445 } 3446 } 3447 } 3448} 3449 3450void AudioFlinger::PlaybackThread::Track::flush() 3451{ 3452 LOGV("flush(%d)", mName); 3453 sp<ThreadBase> thread = mThread.promote(); 3454 if (thread != 0) { 3455 Mutex::Autolock _l(thread->mLock); 3456 if (mState != STOPPED && mState != PAUSED && mState != PAUSING) { 3457 return; 3458 } 3459 // No point remaining in PAUSED state after a flush => go to 3460 // STOPPED state 3461 mState = STOPPED; 3462 3463 // do not reset the track if it is still in the process of being stopped or paused. 3464 // this will be done by prepareTracks_l() when the track is stopped. 3465 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3466 if (playbackThread->mActiveTracks.indexOf(this) < 0) { 3467 reset(); 3468 } 3469 } 3470} 3471 3472void AudioFlinger::PlaybackThread::Track::reset() 3473{ 3474 // Do not reset twice to avoid discarding data written just after a flush and before 3475 // the audioflinger thread detects the track is stopped. 3476 if (!mResetDone) { 3477 TrackBase::reset(); 3478 // Force underrun condition to avoid false underrun callback until first data is 3479 // written to buffer 3480 android_atomic_and(~CBLK_FORCEREADY_MSK, &mCblk->flags); 3481 android_atomic_or(CBLK_UNDERRUN_ON, &mCblk->flags); 3482 mFillingUpStatus = FS_FILLING; 3483 mResetDone = true; 3484 } 3485} 3486 3487void AudioFlinger::PlaybackThread::Track::mute(bool muted) 3488{ 3489 mMute = muted; 3490} 3491 3492void AudioFlinger::PlaybackThread::Track::setVolume(float left, float right) 3493{ 3494 mVolume[0] = left; 3495 mVolume[1] = right; 3496} 3497 3498status_t AudioFlinger::PlaybackThread::Track::attachAuxEffect(int EffectId) 3499{ 3500 status_t status = DEAD_OBJECT; 3501 sp<ThreadBase> thread = mThread.promote(); 3502 if (thread != 0) { 3503 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3504 status = playbackThread->attachAuxEffect(this, EffectId); 3505 } 3506 return status; 3507} 3508 3509void AudioFlinger::PlaybackThread::Track::setAuxBuffer(int EffectId, int32_t *buffer) 3510{ 3511 mAuxEffectId = EffectId; 3512 mAuxBuffer = buffer; 3513} 3514 3515// ---------------------------------------------------------------------------- 3516 3517// RecordTrack constructor must be called with AudioFlinger::mLock held 3518AudioFlinger::RecordThread::RecordTrack::RecordTrack( 3519 const wp<ThreadBase>& thread, 3520 const sp<Client>& client, 3521 uint32_t sampleRate, 3522 uint32_t format, 3523 uint32_t channelMask, 3524 int frameCount, 3525 uint32_t flags, 3526 int sessionId) 3527 : TrackBase(thread, client, sampleRate, format, 3528 channelMask, frameCount, flags, 0, sessionId), 3529 mOverflow(false) 3530{ 3531 if (mCblk != NULL) { 3532 LOGV("RecordTrack constructor, size %d", (int)mBufferEnd - (int)mBuffer); 3533 if (format == AUDIO_FORMAT_PCM_16_BIT) { 3534 mCblk->frameSize = mChannelCount * sizeof(int16_t); 3535 } else if (format == AUDIO_FORMAT_PCM_8_BIT) { 3536 mCblk->frameSize = mChannelCount * sizeof(int8_t); 3537 } else { 3538 mCblk->frameSize = sizeof(int8_t); 3539 } 3540 } 3541} 3542 3543AudioFlinger::RecordThread::RecordTrack::~RecordTrack() 3544{ 3545 sp<ThreadBase> thread = mThread.promote(); 3546 if (thread != 0) { 3547 AudioSystem::releaseInput(thread->id()); 3548 } 3549} 3550 3551status_t AudioFlinger::RecordThread::RecordTrack::getNextBuffer(AudioBufferProvider::Buffer* buffer) 3552{ 3553 audio_track_cblk_t* cblk = this->cblk(); 3554 uint32_t framesAvail; 3555 uint32_t framesReq = buffer->frameCount; 3556 3557 // Check if last stepServer failed, try to step now 3558 if (mFlags & TrackBase::STEPSERVER_FAILED) { 3559 if (!step()) goto getNextBuffer_exit; 3560 LOGV("stepServer recovered"); 3561 mFlags &= ~TrackBase::STEPSERVER_FAILED; 3562 } 3563 3564 framesAvail = cblk->framesAvailable_l(); 3565 3566 if (LIKELY(framesAvail)) { 3567 uint32_t s = cblk->server; 3568 uint32_t bufferEnd = cblk->serverBase + cblk->frameCount; 3569 3570 if (framesReq > framesAvail) { 3571 framesReq = framesAvail; 3572 } 3573 if (s + framesReq > bufferEnd) { 3574 framesReq = bufferEnd - s; 3575 } 3576 3577 buffer->raw = getBuffer(s, framesReq); 3578 if (buffer->raw == 0) goto getNextBuffer_exit; 3579 3580 buffer->frameCount = framesReq; 3581 return NO_ERROR; 3582 } 3583 3584getNextBuffer_exit: 3585 buffer->raw = 0; 3586 buffer->frameCount = 0; 3587 return NOT_ENOUGH_DATA; 3588} 3589 3590status_t AudioFlinger::RecordThread::RecordTrack::start() 3591{ 3592 sp<ThreadBase> thread = mThread.promote(); 3593 if (thread != 0) { 3594 RecordThread *recordThread = (RecordThread *)thread.get(); 3595 return recordThread->start(this); 3596 } else { 3597 return BAD_VALUE; 3598 } 3599} 3600 3601void AudioFlinger::RecordThread::RecordTrack::stop() 3602{ 3603 sp<ThreadBase> thread = mThread.promote(); 3604 if (thread != 0) { 3605 RecordThread *recordThread = (RecordThread *)thread.get(); 3606 recordThread->stop(this); 3607 TrackBase::reset(); 3608 // Force overerrun condition to avoid false overrun callback until first data is 3609 // read from buffer 3610 android_atomic_or(CBLK_UNDERRUN_ON, &mCblk->flags); 3611 } 3612} 3613 3614void AudioFlinger::RecordThread::RecordTrack::dump(char* buffer, size_t size) 3615{ 3616 snprintf(buffer, size, " %05d %03u 0x%08x %05d %04u %01d %05u %08x %08x\n", 3617 (mClient == NULL) ? getpid() : mClient->pid(), 3618 mFormat, 3619 mChannelMask, 3620 mSessionId, 3621 mFrameCount, 3622 mState, 3623 mCblk->sampleRate, 3624 mCblk->server, 3625 mCblk->user); 3626} 3627 3628 3629// ---------------------------------------------------------------------------- 3630 3631AudioFlinger::PlaybackThread::OutputTrack::OutputTrack( 3632 const wp<ThreadBase>& thread, 3633 DuplicatingThread *sourceThread, 3634 uint32_t sampleRate, 3635 uint32_t format, 3636 uint32_t channelMask, 3637 int frameCount) 3638 : Track(thread, NULL, AUDIO_STREAM_CNT, sampleRate, format, channelMask, frameCount, NULL, 0), 3639 mActive(false), mSourceThread(sourceThread) 3640{ 3641 3642 PlaybackThread *playbackThread = (PlaybackThread *)thread.unsafe_get(); 3643 if (mCblk != NULL) { 3644 mCblk->flags |= CBLK_DIRECTION_OUT; 3645 mCblk->buffers = (char*)mCblk + sizeof(audio_track_cblk_t); 3646 mCblk->volume[0] = mCblk->volume[1] = 0x1000; 3647 mOutBuffer.frameCount = 0; 3648 playbackThread->mTracks.add(this); 3649 LOGV("OutputTrack constructor mCblk %p, mBuffer %p, mCblk->buffers %p, " \ 3650 "mCblk->frameCount %d, mCblk->sampleRate %d, mChannelMask 0x%08x mBufferEnd %p", 3651 mCblk, mBuffer, mCblk->buffers, 3652 mCblk->frameCount, mCblk->sampleRate, mChannelMask, mBufferEnd); 3653 } else { 3654 LOGW("Error creating output track on thread %p", playbackThread); 3655 } 3656} 3657 3658AudioFlinger::PlaybackThread::OutputTrack::~OutputTrack() 3659{ 3660 clearBufferQueue(); 3661} 3662 3663status_t AudioFlinger::PlaybackThread::OutputTrack::start() 3664{ 3665 status_t status = Track::start(); 3666 if (status != NO_ERROR) { 3667 return status; 3668 } 3669 3670 mActive = true; 3671 mRetryCount = 127; 3672 return status; 3673} 3674 3675void AudioFlinger::PlaybackThread::OutputTrack::stop() 3676{ 3677 Track::stop(); 3678 clearBufferQueue(); 3679 mOutBuffer.frameCount = 0; 3680 mActive = false; 3681} 3682 3683bool AudioFlinger::PlaybackThread::OutputTrack::write(int16_t* data, uint32_t frames) 3684{ 3685 Buffer *pInBuffer; 3686 Buffer inBuffer; 3687 uint32_t channelCount = mChannelCount; 3688 bool outputBufferFull = false; 3689 inBuffer.frameCount = frames; 3690 inBuffer.i16 = data; 3691 3692 uint32_t waitTimeLeftMs = mSourceThread->waitTimeMs(); 3693 3694 if (!mActive && frames != 0) { 3695 start(); 3696 sp<ThreadBase> thread = mThread.promote(); 3697 if (thread != 0) { 3698 MixerThread *mixerThread = (MixerThread *)thread.get(); 3699 if (mCblk->frameCount > frames){ 3700 if (mBufferQueue.size() < kMaxOverFlowBuffers) { 3701 uint32_t startFrames = (mCblk->frameCount - frames); 3702 pInBuffer = new Buffer; 3703 pInBuffer->mBuffer = new int16_t[startFrames * channelCount]; 3704 pInBuffer->frameCount = startFrames; 3705 pInBuffer->i16 = pInBuffer->mBuffer; 3706 memset(pInBuffer->raw, 0, startFrames * channelCount * sizeof(int16_t)); 3707 mBufferQueue.add(pInBuffer); 3708 } else { 3709 LOGW ("OutputTrack::write() %p no more buffers in queue", this); 3710 } 3711 } 3712 } 3713 } 3714 3715 while (waitTimeLeftMs) { 3716 // First write pending buffers, then new data 3717 if (mBufferQueue.size()) { 3718 pInBuffer = mBufferQueue.itemAt(0); 3719 } else { 3720 pInBuffer = &inBuffer; 3721 } 3722 3723 if (pInBuffer->frameCount == 0) { 3724 break; 3725 } 3726 3727 if (mOutBuffer.frameCount == 0) { 3728 mOutBuffer.frameCount = pInBuffer->frameCount; 3729 nsecs_t startTime = systemTime(); 3730 if (obtainBuffer(&mOutBuffer, waitTimeLeftMs) == (status_t)AudioTrack::NO_MORE_BUFFERS) { 3731 LOGV ("OutputTrack::write() %p thread %p no more output buffers", this, mThread.unsafe_get()); 3732 outputBufferFull = true; 3733 break; 3734 } 3735 uint32_t waitTimeMs = (uint32_t)ns2ms(systemTime() - startTime); 3736 if (waitTimeLeftMs >= waitTimeMs) { 3737 waitTimeLeftMs -= waitTimeMs; 3738 } else { 3739 waitTimeLeftMs = 0; 3740 } 3741 } 3742 3743 uint32_t outFrames = pInBuffer->frameCount > mOutBuffer.frameCount ? mOutBuffer.frameCount : pInBuffer->frameCount; 3744 memcpy(mOutBuffer.raw, pInBuffer->raw, outFrames * channelCount * sizeof(int16_t)); 3745 mCblk->stepUser(outFrames); 3746 pInBuffer->frameCount -= outFrames; 3747 pInBuffer->i16 += outFrames * channelCount; 3748 mOutBuffer.frameCount -= outFrames; 3749 mOutBuffer.i16 += outFrames * channelCount; 3750 3751 if (pInBuffer->frameCount == 0) { 3752 if (mBufferQueue.size()) { 3753 mBufferQueue.removeAt(0); 3754 delete [] pInBuffer->mBuffer; 3755 delete pInBuffer; 3756 LOGV("OutputTrack::write() %p thread %p released overflow buffer %d", this, mThread.unsafe_get(), mBufferQueue.size()); 3757 } else { 3758 break; 3759 } 3760 } 3761 } 3762 3763 // If we could not write all frames, allocate a buffer and queue it for next time. 3764 if (inBuffer.frameCount) { 3765 sp<ThreadBase> thread = mThread.promote(); 3766 if (thread != 0 && !thread->standby()) { 3767 if (mBufferQueue.size() < kMaxOverFlowBuffers) { 3768 pInBuffer = new Buffer; 3769 pInBuffer->mBuffer = new int16_t[inBuffer.frameCount * channelCount]; 3770 pInBuffer->frameCount = inBuffer.frameCount; 3771 pInBuffer->i16 = pInBuffer->mBuffer; 3772 memcpy(pInBuffer->raw, inBuffer.raw, inBuffer.frameCount * channelCount * sizeof(int16_t)); 3773 mBufferQueue.add(pInBuffer); 3774 LOGV("OutputTrack::write() %p thread %p adding overflow buffer %d", this, mThread.unsafe_get(), mBufferQueue.size()); 3775 } else { 3776 LOGW("OutputTrack::write() %p thread %p no more overflow buffers", mThread.unsafe_get(), this); 3777 } 3778 } 3779 } 3780 3781 // Calling write() with a 0 length buffer, means that no more data will be written: 3782 // If no more buffers are pending, fill output track buffer to make sure it is started 3783 // by output mixer. 3784 if (frames == 0 && mBufferQueue.size() == 0) { 3785 if (mCblk->user < mCblk->frameCount) { 3786 frames = mCblk->frameCount - mCblk->user; 3787 pInBuffer = new Buffer; 3788 pInBuffer->mBuffer = new int16_t[frames * channelCount]; 3789 pInBuffer->frameCount = frames; 3790 pInBuffer->i16 = pInBuffer->mBuffer; 3791 memset(pInBuffer->raw, 0, frames * channelCount * sizeof(int16_t)); 3792 mBufferQueue.add(pInBuffer); 3793 } else if (mActive) { 3794 stop(); 3795 } 3796 } 3797 3798 return outputBufferFull; 3799} 3800 3801status_t AudioFlinger::PlaybackThread::OutputTrack::obtainBuffer(AudioBufferProvider::Buffer* buffer, uint32_t waitTimeMs) 3802{ 3803 int active; 3804 status_t result; 3805 audio_track_cblk_t* cblk = mCblk; 3806 uint32_t framesReq = buffer->frameCount; 3807 3808// LOGV("OutputTrack::obtainBuffer user %d, server %d", cblk->user, cblk->server); 3809 buffer->frameCount = 0; 3810 3811 uint32_t framesAvail = cblk->framesAvailable(); 3812 3813 3814 if (framesAvail == 0) { 3815 Mutex::Autolock _l(cblk->lock); 3816 goto start_loop_here; 3817 while (framesAvail == 0) { 3818 active = mActive; 3819 if (UNLIKELY(!active)) { 3820 LOGV("Not active and NO_MORE_BUFFERS"); 3821 return AudioTrack::NO_MORE_BUFFERS; 3822 } 3823 result = cblk->cv.waitRelative(cblk->lock, milliseconds(waitTimeMs)); 3824 if (result != NO_ERROR) { 3825 return AudioTrack::NO_MORE_BUFFERS; 3826 } 3827 // read the server count again 3828 start_loop_here: 3829 framesAvail = cblk->framesAvailable_l(); 3830 } 3831 } 3832 3833// if (framesAvail < framesReq) { 3834// return AudioTrack::NO_MORE_BUFFERS; 3835// } 3836 3837 if (framesReq > framesAvail) { 3838 framesReq = framesAvail; 3839 } 3840 3841 uint32_t u = cblk->user; 3842 uint32_t bufferEnd = cblk->userBase + cblk->frameCount; 3843 3844 if (u + framesReq > bufferEnd) { 3845 framesReq = bufferEnd - u; 3846 } 3847 3848 buffer->frameCount = framesReq; 3849 buffer->raw = (void *)cblk->buffer(u); 3850 return NO_ERROR; 3851} 3852 3853 3854void AudioFlinger::PlaybackThread::OutputTrack::clearBufferQueue() 3855{ 3856 size_t size = mBufferQueue.size(); 3857 Buffer *pBuffer; 3858 3859 for (size_t i = 0; i < size; i++) { 3860 pBuffer = mBufferQueue.itemAt(i); 3861 delete [] pBuffer->mBuffer; 3862 delete pBuffer; 3863 } 3864 mBufferQueue.clear(); 3865} 3866 3867// ---------------------------------------------------------------------------- 3868 3869AudioFlinger::Client::Client(const sp<AudioFlinger>& audioFlinger, pid_t pid) 3870 : RefBase(), 3871 mAudioFlinger(audioFlinger), 3872 mMemoryDealer(new MemoryDealer(1024*1024, "AudioFlinger::Client")), 3873 mPid(pid) 3874{ 3875 // 1 MB of address space is good for 32 tracks, 8 buffers each, 4 KB/buffer 3876} 3877 3878// Client destructor must be called with AudioFlinger::mLock held 3879AudioFlinger::Client::~Client() 3880{ 3881 mAudioFlinger->removeClient_l(mPid); 3882} 3883 3884const sp<MemoryDealer>& AudioFlinger::Client::heap() const 3885{ 3886 return mMemoryDealer; 3887} 3888 3889// ---------------------------------------------------------------------------- 3890 3891AudioFlinger::NotificationClient::NotificationClient(const sp<AudioFlinger>& audioFlinger, 3892 const sp<IAudioFlingerClient>& client, 3893 pid_t pid) 3894 : mAudioFlinger(audioFlinger), mPid(pid), mClient(client) 3895{ 3896} 3897 3898AudioFlinger::NotificationClient::~NotificationClient() 3899{ 3900 mClient.clear(); 3901} 3902 3903void AudioFlinger::NotificationClient::binderDied(const wp<IBinder>& who) 3904{ 3905 sp<NotificationClient> keep(this); 3906 { 3907 mAudioFlinger->removeNotificationClient(mPid); 3908 } 3909} 3910 3911// ---------------------------------------------------------------------------- 3912 3913AudioFlinger::TrackHandle::TrackHandle(const sp<AudioFlinger::PlaybackThread::Track>& track) 3914 : BnAudioTrack(), 3915 mTrack(track) 3916{ 3917} 3918 3919AudioFlinger::TrackHandle::~TrackHandle() { 3920 // just stop the track on deletion, associated resources 3921 // will be freed from the main thread once all pending buffers have 3922 // been played. Unless it's not in the active track list, in which 3923 // case we free everything now... 3924 mTrack->destroy(); 3925} 3926 3927status_t AudioFlinger::TrackHandle::start() { 3928 return mTrack->start(); 3929} 3930 3931void AudioFlinger::TrackHandle::stop() { 3932 mTrack->stop(); 3933} 3934 3935void AudioFlinger::TrackHandle::flush() { 3936 mTrack->flush(); 3937} 3938 3939void AudioFlinger::TrackHandle::mute(bool e) { 3940 mTrack->mute(e); 3941} 3942 3943void AudioFlinger::TrackHandle::pause() { 3944 mTrack->pause(); 3945} 3946 3947void AudioFlinger::TrackHandle::setVolume(float left, float right) { 3948 mTrack->setVolume(left, right); 3949} 3950 3951sp<IMemory> AudioFlinger::TrackHandle::getCblk() const { 3952 return mTrack->getCblk(); 3953} 3954 3955status_t AudioFlinger::TrackHandle::attachAuxEffect(int EffectId) 3956{ 3957 return mTrack->attachAuxEffect(EffectId); 3958} 3959 3960status_t AudioFlinger::TrackHandle::onTransact( 3961 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 3962{ 3963 return BnAudioTrack::onTransact(code, data, reply, flags); 3964} 3965 3966// ---------------------------------------------------------------------------- 3967 3968sp<IAudioRecord> AudioFlinger::openRecord( 3969 pid_t pid, 3970 int input, 3971 uint32_t sampleRate, 3972 uint32_t format, 3973 uint32_t channelMask, 3974 int frameCount, 3975 uint32_t flags, 3976 int *sessionId, 3977 status_t *status) 3978{ 3979 sp<RecordThread::RecordTrack> recordTrack; 3980 sp<RecordHandle> recordHandle; 3981 sp<Client> client; 3982 wp<Client> wclient; 3983 status_t lStatus; 3984 RecordThread *thread; 3985 size_t inFrameCount; 3986 int lSessionId; 3987 3988 // check calling permissions 3989 if (!recordingAllowed()) { 3990 lStatus = PERMISSION_DENIED; 3991 goto Exit; 3992 } 3993 3994 // add client to list 3995 { // scope for mLock 3996 Mutex::Autolock _l(mLock); 3997 thread = checkRecordThread_l(input); 3998 if (thread == NULL) { 3999 lStatus = BAD_VALUE; 4000 goto Exit; 4001 } 4002 4003 wclient = mClients.valueFor(pid); 4004 if (wclient != NULL) { 4005 client = wclient.promote(); 4006 } else { 4007 client = new Client(this, pid); 4008 mClients.add(pid, client); 4009 } 4010 4011 // If no audio session id is provided, create one here 4012 if (sessionId != NULL && *sessionId != AUDIO_SESSION_OUTPUT_MIX) { 4013 lSessionId = *sessionId; 4014 } else { 4015 lSessionId = nextUniqueId(); 4016 if (sessionId != NULL) { 4017 *sessionId = lSessionId; 4018 } 4019 } 4020 // create new record track. The record track uses one track in mHardwareMixerThread by convention. 4021 recordTrack = thread->createRecordTrack_l(client, 4022 sampleRate, 4023 format, 4024 channelMask, 4025 frameCount, 4026 flags, 4027 lSessionId, 4028 &lStatus); 4029 } 4030 if (lStatus != NO_ERROR) { 4031 // remove local strong reference to Client before deleting the RecordTrack so that the Client 4032 // destructor is called by the TrackBase destructor with mLock held 4033 client.clear(); 4034 recordTrack.clear(); 4035 goto Exit; 4036 } 4037 4038 // return to handle to client 4039 recordHandle = new RecordHandle(recordTrack); 4040 lStatus = NO_ERROR; 4041 4042Exit: 4043 if (status) { 4044 *status = lStatus; 4045 } 4046 return recordHandle; 4047} 4048 4049// ---------------------------------------------------------------------------- 4050 4051AudioFlinger::RecordHandle::RecordHandle(const sp<AudioFlinger::RecordThread::RecordTrack>& recordTrack) 4052 : BnAudioRecord(), 4053 mRecordTrack(recordTrack) 4054{ 4055} 4056 4057AudioFlinger::RecordHandle::~RecordHandle() { 4058 stop(); 4059} 4060 4061status_t AudioFlinger::RecordHandle::start() { 4062 LOGV("RecordHandle::start()"); 4063 return mRecordTrack->start(); 4064} 4065 4066void AudioFlinger::RecordHandle::stop() { 4067 LOGV("RecordHandle::stop()"); 4068 mRecordTrack->stop(); 4069} 4070 4071sp<IMemory> AudioFlinger::RecordHandle::getCblk() const { 4072 return mRecordTrack->getCblk(); 4073} 4074 4075status_t AudioFlinger::RecordHandle::onTransact( 4076 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 4077{ 4078 return BnAudioRecord::onTransact(code, data, reply, flags); 4079} 4080 4081// ---------------------------------------------------------------------------- 4082 4083AudioFlinger::RecordThread::RecordThread(const sp<AudioFlinger>& audioFlinger, 4084 AudioStreamIn *input, 4085 uint32_t sampleRate, 4086 uint32_t channels, 4087 int id, 4088 uint32_t device) : 4089 ThreadBase(audioFlinger, id, device), 4090 mInput(input), mTrack(NULL), mResampler(0), mRsmpOutBuffer(0), mRsmpInBuffer(0) 4091{ 4092 mType = ThreadBase::RECORD; 4093 4094 snprintf(mName, kNameLength, "AudioIn_%d", id); 4095 4096 mReqChannelCount = popcount(channels); 4097 mReqSampleRate = sampleRate; 4098 readInputParameters(); 4099} 4100 4101 4102AudioFlinger::RecordThread::~RecordThread() 4103{ 4104 delete[] mRsmpInBuffer; 4105 if (mResampler != 0) { 4106 delete mResampler; 4107 delete[] mRsmpOutBuffer; 4108 } 4109} 4110 4111void AudioFlinger::RecordThread::onFirstRef() 4112{ 4113 run(mName, PRIORITY_URGENT_AUDIO); 4114} 4115 4116status_t AudioFlinger::RecordThread::readyToRun() 4117{ 4118 status_t status = initCheck(); 4119 LOGW_IF(status != NO_ERROR,"RecordThread %p could not initialize", this); 4120 return status; 4121} 4122 4123bool AudioFlinger::RecordThread::threadLoop() 4124{ 4125 AudioBufferProvider::Buffer buffer; 4126 sp<RecordTrack> activeTrack; 4127 Vector< sp<EffectChain> > effectChains; 4128 4129 nsecs_t lastWarning = 0; 4130 4131 acquireWakeLock(); 4132 4133 // start recording 4134 while (!exitPending()) { 4135 4136 processConfigEvents(); 4137 4138 { // scope for mLock 4139 Mutex::Autolock _l(mLock); 4140 checkForNewParameters_l(); 4141 if (mActiveTrack == 0 && mConfigEvents.isEmpty()) { 4142 if (!mStandby) { 4143 mInput->stream->common.standby(&mInput->stream->common); 4144 mStandby = true; 4145 } 4146 4147 if (exitPending()) break; 4148 4149 releaseWakeLock_l(); 4150 LOGV("RecordThread: loop stopping"); 4151 // go to sleep 4152 mWaitWorkCV.wait(mLock); 4153 LOGV("RecordThread: loop starting"); 4154 acquireWakeLock_l(); 4155 continue; 4156 } 4157 if (mActiveTrack != 0) { 4158 if (mActiveTrack->mState == TrackBase::PAUSING) { 4159 if (!mStandby) { 4160 mInput->stream->common.standby(&mInput->stream->common); 4161 mStandby = true; 4162 } 4163 mActiveTrack.clear(); 4164 mStartStopCond.broadcast(); 4165 } else if (mActiveTrack->mState == TrackBase::RESUMING) { 4166 if (mReqChannelCount != mActiveTrack->channelCount()) { 4167 mActiveTrack.clear(); 4168 mStartStopCond.broadcast(); 4169 } else if (mBytesRead != 0) { 4170 // record start succeeds only if first read from audio input 4171 // succeeds 4172 if (mBytesRead > 0) { 4173 mActiveTrack->mState = TrackBase::ACTIVE; 4174 } else { 4175 mActiveTrack.clear(); 4176 } 4177 mStartStopCond.broadcast(); 4178 } 4179 mStandby = false; 4180 } 4181 } 4182 lockEffectChains_l(effectChains); 4183 } 4184 4185 if (mActiveTrack != 0) { 4186 if (mActiveTrack->mState != TrackBase::ACTIVE && 4187 mActiveTrack->mState != TrackBase::RESUMING) { 4188 unlockEffectChains(effectChains); 4189 usleep(kRecordThreadSleepUs); 4190 continue; 4191 } 4192 for (size_t i = 0; i < effectChains.size(); i ++) { 4193 effectChains[i]->process_l(); 4194 } 4195 4196 buffer.frameCount = mFrameCount; 4197 if (LIKELY(mActiveTrack->getNextBuffer(&buffer) == NO_ERROR)) { 4198 size_t framesOut = buffer.frameCount; 4199 if (mResampler == 0) { 4200 // no resampling 4201 while (framesOut) { 4202 size_t framesIn = mFrameCount - mRsmpInIndex; 4203 if (framesIn) { 4204 int8_t *src = (int8_t *)mRsmpInBuffer + mRsmpInIndex * mFrameSize; 4205 int8_t *dst = buffer.i8 + (buffer.frameCount - framesOut) * mActiveTrack->mCblk->frameSize; 4206 if (framesIn > framesOut) 4207 framesIn = framesOut; 4208 mRsmpInIndex += framesIn; 4209 framesOut -= framesIn; 4210 if ((int)mChannelCount == mReqChannelCount || 4211 mFormat != AUDIO_FORMAT_PCM_16_BIT) { 4212 memcpy(dst, src, framesIn * mFrameSize); 4213 } else { 4214 int16_t *src16 = (int16_t *)src; 4215 int16_t *dst16 = (int16_t *)dst; 4216 if (mChannelCount == 1) { 4217 while (framesIn--) { 4218 *dst16++ = *src16; 4219 *dst16++ = *src16++; 4220 } 4221 } else { 4222 while (framesIn--) { 4223 *dst16++ = (int16_t)(((int32_t)*src16 + (int32_t)*(src16 + 1)) >> 1); 4224 src16 += 2; 4225 } 4226 } 4227 } 4228 } 4229 if (framesOut && mFrameCount == mRsmpInIndex) { 4230 if (framesOut == mFrameCount && 4231 ((int)mChannelCount == mReqChannelCount || mFormat != AUDIO_FORMAT_PCM_16_BIT)) { 4232 mBytesRead = mInput->stream->read(mInput->stream, buffer.raw, mInputBytes); 4233 framesOut = 0; 4234 } else { 4235 mBytesRead = mInput->stream->read(mInput->stream, mRsmpInBuffer, mInputBytes); 4236 mRsmpInIndex = 0; 4237 } 4238 if (mBytesRead < 0) { 4239 LOGE("Error reading audio input"); 4240 if (mActiveTrack->mState == TrackBase::ACTIVE) { 4241 // Force input into standby so that it tries to 4242 // recover at next read attempt 4243 mInput->stream->common.standby(&mInput->stream->common); 4244 usleep(kRecordThreadSleepUs); 4245 } 4246 mRsmpInIndex = mFrameCount; 4247 framesOut = 0; 4248 buffer.frameCount = 0; 4249 } 4250 } 4251 } 4252 } else { 4253 // resampling 4254 4255 memset(mRsmpOutBuffer, 0, framesOut * 2 * sizeof(int32_t)); 4256 // alter output frame count as if we were expecting stereo samples 4257 if (mChannelCount == 1 && mReqChannelCount == 1) { 4258 framesOut >>= 1; 4259 } 4260 mResampler->resample(mRsmpOutBuffer, framesOut, this); 4261 // ditherAndClamp() works as long as all buffers returned by mActiveTrack->getNextBuffer() 4262 // are 32 bit aligned which should be always true. 4263 if (mChannelCount == 2 && mReqChannelCount == 1) { 4264 AudioMixer::ditherAndClamp(mRsmpOutBuffer, mRsmpOutBuffer, framesOut); 4265 // the resampler always outputs stereo samples: do post stereo to mono conversion 4266 int16_t *src = (int16_t *)mRsmpOutBuffer; 4267 int16_t *dst = buffer.i16; 4268 while (framesOut--) { 4269 *dst++ = (int16_t)(((int32_t)*src + (int32_t)*(src + 1)) >> 1); 4270 src += 2; 4271 } 4272 } else { 4273 AudioMixer::ditherAndClamp((int32_t *)buffer.raw, mRsmpOutBuffer, framesOut); 4274 } 4275 4276 } 4277 mActiveTrack->releaseBuffer(&buffer); 4278 mActiveTrack->overflow(); 4279 } 4280 // client isn't retrieving buffers fast enough 4281 else { 4282 if (!mActiveTrack->setOverflow()) { 4283 nsecs_t now = systemTime(); 4284 if ((now - lastWarning) > kWarningThrottle) { 4285 LOGW("RecordThread: buffer overflow"); 4286 lastWarning = now; 4287 } 4288 } 4289 // Release the processor for a while before asking for a new buffer. 4290 // This will give the application more chance to read from the buffer and 4291 // clear the overflow. 4292 usleep(kRecordThreadSleepUs); 4293 } 4294 } 4295 // enable changes in effect chain 4296 unlockEffectChains(effectChains); 4297 effectChains.clear(); 4298 } 4299 4300 if (!mStandby) { 4301 mInput->stream->common.standby(&mInput->stream->common); 4302 } 4303 mActiveTrack.clear(); 4304 4305 mStartStopCond.broadcast(); 4306 4307 releaseWakeLock(); 4308 4309 LOGV("RecordThread %p exiting", this); 4310 return false; 4311} 4312 4313 4314sp<AudioFlinger::RecordThread::RecordTrack> AudioFlinger::RecordThread::createRecordTrack_l( 4315 const sp<AudioFlinger::Client>& client, 4316 uint32_t sampleRate, 4317 int format, 4318 int channelMask, 4319 int frameCount, 4320 uint32_t flags, 4321 int sessionId, 4322 status_t *status) 4323{ 4324 sp<RecordTrack> track; 4325 status_t lStatus; 4326 4327 lStatus = initCheck(); 4328 if (lStatus != NO_ERROR) { 4329 LOGE("Audio driver not initialized."); 4330 goto Exit; 4331 } 4332 4333 { // scope for mLock 4334 Mutex::Autolock _l(mLock); 4335 4336 track = new RecordTrack(this, client, sampleRate, 4337 format, channelMask, frameCount, flags, sessionId); 4338 4339 if (track->getCblk() == NULL) { 4340 lStatus = NO_MEMORY; 4341 goto Exit; 4342 } 4343 4344 mTrack = track.get(); 4345 // disable AEC and NS if the device is a BT SCO headset supporting those pre processings 4346 bool suspend = audio_is_bluetooth_sco_device( 4347 (audio_devices_t)(mDevice & AUDIO_DEVICE_IN_ALL)) && mAudioFlinger->btNrec(); 4348 setEffectSuspended_l(FX_IID_AEC, suspend, sessionId); 4349 setEffectSuspended_l(FX_IID_NS, suspend, sessionId); 4350 } 4351 lStatus = NO_ERROR; 4352 4353Exit: 4354 if (status) { 4355 *status = lStatus; 4356 } 4357 return track; 4358} 4359 4360status_t AudioFlinger::RecordThread::start(RecordThread::RecordTrack* recordTrack) 4361{ 4362 LOGV("RecordThread::start"); 4363 sp <ThreadBase> strongMe = this; 4364 status_t status = NO_ERROR; 4365 { 4366 AutoMutex lock(&mLock); 4367 if (mActiveTrack != 0) { 4368 if (recordTrack != mActiveTrack.get()) { 4369 status = -EBUSY; 4370 } else if (mActiveTrack->mState == TrackBase::PAUSING) { 4371 mActiveTrack->mState = TrackBase::ACTIVE; 4372 } 4373 return status; 4374 } 4375 4376 recordTrack->mState = TrackBase::IDLE; 4377 mActiveTrack = recordTrack; 4378 mLock.unlock(); 4379 status_t status = AudioSystem::startInput(mId); 4380 mLock.lock(); 4381 if (status != NO_ERROR) { 4382 mActiveTrack.clear(); 4383 return status; 4384 } 4385 mRsmpInIndex = mFrameCount; 4386 mBytesRead = 0; 4387 if (mResampler != NULL) { 4388 mResampler->reset(); 4389 } 4390 mActiveTrack->mState = TrackBase::RESUMING; 4391 // signal thread to start 4392 LOGV("Signal record thread"); 4393 mWaitWorkCV.signal(); 4394 // do not wait for mStartStopCond if exiting 4395 if (mExiting) { 4396 mActiveTrack.clear(); 4397 status = INVALID_OPERATION; 4398 goto startError; 4399 } 4400 mStartStopCond.wait(mLock); 4401 if (mActiveTrack == 0) { 4402 LOGV("Record failed to start"); 4403 status = BAD_VALUE; 4404 goto startError; 4405 } 4406 LOGV("Record started OK"); 4407 return status; 4408 } 4409startError: 4410 AudioSystem::stopInput(mId); 4411 return status; 4412} 4413 4414void AudioFlinger::RecordThread::stop(RecordThread::RecordTrack* recordTrack) { 4415 LOGV("RecordThread::stop"); 4416 sp <ThreadBase> strongMe = this; 4417 { 4418 AutoMutex lock(&mLock); 4419 if (mActiveTrack != 0 && recordTrack == mActiveTrack.get()) { 4420 mActiveTrack->mState = TrackBase::PAUSING; 4421 // do not wait for mStartStopCond if exiting 4422 if (mExiting) { 4423 return; 4424 } 4425 mStartStopCond.wait(mLock); 4426 // if we have been restarted, recordTrack == mActiveTrack.get() here 4427 if (mActiveTrack == 0 || recordTrack != mActiveTrack.get()) { 4428 mLock.unlock(); 4429 AudioSystem::stopInput(mId); 4430 mLock.lock(); 4431 LOGV("Record stopped OK"); 4432 } 4433 } 4434 } 4435} 4436 4437status_t AudioFlinger::RecordThread::dump(int fd, const Vector<String16>& args) 4438{ 4439 const size_t SIZE = 256; 4440 char buffer[SIZE]; 4441 String8 result; 4442 pid_t pid = 0; 4443 4444 snprintf(buffer, SIZE, "\nInput thread %p internals\n", this); 4445 result.append(buffer); 4446 4447 if (mActiveTrack != 0) { 4448 result.append("Active Track:\n"); 4449 result.append(" Clien Fmt Chn mask Session Buf S SRate Serv User\n"); 4450 mActiveTrack->dump(buffer, SIZE); 4451 result.append(buffer); 4452 4453 snprintf(buffer, SIZE, "In index: %d\n", mRsmpInIndex); 4454 result.append(buffer); 4455 snprintf(buffer, SIZE, "In size: %d\n", mInputBytes); 4456 result.append(buffer); 4457 snprintf(buffer, SIZE, "Resampling: %d\n", (mResampler != 0)); 4458 result.append(buffer); 4459 snprintf(buffer, SIZE, "Out channel count: %d\n", mReqChannelCount); 4460 result.append(buffer); 4461 snprintf(buffer, SIZE, "Out sample rate: %d\n", mReqSampleRate); 4462 result.append(buffer); 4463 4464 4465 } else { 4466 result.append("No record client\n"); 4467 } 4468 write(fd, result.string(), result.size()); 4469 4470 dumpBase(fd, args); 4471 dumpEffectChains(fd, args); 4472 4473 return NO_ERROR; 4474} 4475 4476status_t AudioFlinger::RecordThread::getNextBuffer(AudioBufferProvider::Buffer* buffer) 4477{ 4478 size_t framesReq = buffer->frameCount; 4479 size_t framesReady = mFrameCount - mRsmpInIndex; 4480 int channelCount; 4481 4482 if (framesReady == 0) { 4483 mBytesRead = mInput->stream->read(mInput->stream, mRsmpInBuffer, mInputBytes); 4484 if (mBytesRead < 0) { 4485 LOGE("RecordThread::getNextBuffer() Error reading audio input"); 4486 if (mActiveTrack->mState == TrackBase::ACTIVE) { 4487 // Force input into standby so that it tries to 4488 // recover at next read attempt 4489 mInput->stream->common.standby(&mInput->stream->common); 4490 usleep(kRecordThreadSleepUs); 4491 } 4492 buffer->raw = 0; 4493 buffer->frameCount = 0; 4494 return NOT_ENOUGH_DATA; 4495 } 4496 mRsmpInIndex = 0; 4497 framesReady = mFrameCount; 4498 } 4499 4500 if (framesReq > framesReady) { 4501 framesReq = framesReady; 4502 } 4503 4504 if (mChannelCount == 1 && mReqChannelCount == 2) { 4505 channelCount = 1; 4506 } else { 4507 channelCount = 2; 4508 } 4509 buffer->raw = mRsmpInBuffer + mRsmpInIndex * channelCount; 4510 buffer->frameCount = framesReq; 4511 return NO_ERROR; 4512} 4513 4514void AudioFlinger::RecordThread::releaseBuffer(AudioBufferProvider::Buffer* buffer) 4515{ 4516 mRsmpInIndex += buffer->frameCount; 4517 buffer->frameCount = 0; 4518} 4519 4520bool AudioFlinger::RecordThread::checkForNewParameters_l() 4521{ 4522 bool reconfig = false; 4523 4524 while (!mNewParameters.isEmpty()) { 4525 status_t status = NO_ERROR; 4526 String8 keyValuePair = mNewParameters[0]; 4527 AudioParameter param = AudioParameter(keyValuePair); 4528 int value; 4529 int reqFormat = mFormat; 4530 int reqSamplingRate = mReqSampleRate; 4531 int reqChannelCount = mReqChannelCount; 4532 4533 if (param.getInt(String8(AudioParameter::keySamplingRate), value) == NO_ERROR) { 4534 reqSamplingRate = value; 4535 reconfig = true; 4536 } 4537 if (param.getInt(String8(AudioParameter::keyFormat), value) == NO_ERROR) { 4538 reqFormat = value; 4539 reconfig = true; 4540 } 4541 if (param.getInt(String8(AudioParameter::keyChannels), value) == NO_ERROR) { 4542 reqChannelCount = popcount(value); 4543 reconfig = true; 4544 } 4545 if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) { 4546 // do not accept frame count changes if tracks are open as the track buffer 4547 // size depends on frame count and correct behavior would not be garantied 4548 // if frame count is changed after track creation 4549 if (mActiveTrack != 0) { 4550 status = INVALID_OPERATION; 4551 } else { 4552 reconfig = true; 4553 } 4554 } 4555 if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) { 4556 // forward device change to effects that have requested to be 4557 // aware of attached audio device. 4558 for (size_t i = 0; i < mEffectChains.size(); i++) { 4559 mEffectChains[i]->setDevice_l(value); 4560 } 4561 // store input device and output device but do not forward output device to audio HAL. 4562 // Note that status is ignored by the caller for output device 4563 // (see AudioFlinger::setParameters() 4564 if (value & AUDIO_DEVICE_OUT_ALL) { 4565 mDevice &= (uint32_t)~(value & AUDIO_DEVICE_OUT_ALL); 4566 status = BAD_VALUE; 4567 } else { 4568 mDevice &= (uint32_t)~(value & AUDIO_DEVICE_IN_ALL); 4569 // disable AEC and NS if the device is a BT SCO headset supporting those pre processings 4570 if (mTrack != NULL) { 4571 bool suspend = audio_is_bluetooth_sco_device( 4572 (audio_devices_t)value) && mAudioFlinger->btNrec(); 4573 setEffectSuspended_l(FX_IID_AEC, suspend, mTrack->sessionId()); 4574 setEffectSuspended_l(FX_IID_NS, suspend, mTrack->sessionId()); 4575 } 4576 } 4577 mDevice |= (uint32_t)value; 4578 } 4579 if (status == NO_ERROR) { 4580 status = mInput->stream->common.set_parameters(&mInput->stream->common, keyValuePair.string()); 4581 if (status == INVALID_OPERATION) { 4582 mInput->stream->common.standby(&mInput->stream->common); 4583 status = mInput->stream->common.set_parameters(&mInput->stream->common, keyValuePair.string()); 4584 } 4585 if (reconfig) { 4586 if (status == BAD_VALUE && 4587 reqFormat == mInput->stream->common.get_format(&mInput->stream->common) && 4588 reqFormat == AUDIO_FORMAT_PCM_16_BIT && 4589 ((int)mInput->stream->common.get_sample_rate(&mInput->stream->common) <= (2 * reqSamplingRate)) && 4590 (popcount(mInput->stream->common.get_channels(&mInput->stream->common)) < 3) && 4591 (reqChannelCount < 3)) { 4592 status = NO_ERROR; 4593 } 4594 if (status == NO_ERROR) { 4595 readInputParameters(); 4596 sendConfigEvent_l(AudioSystem::INPUT_CONFIG_CHANGED); 4597 } 4598 } 4599 } 4600 4601 mNewParameters.removeAt(0); 4602 4603 mParamStatus = status; 4604 mParamCond.signal(); 4605 mWaitWorkCV.wait(mLock); 4606 } 4607 return reconfig; 4608} 4609 4610String8 AudioFlinger::RecordThread::getParameters(const String8& keys) 4611{ 4612 char *s; 4613 String8 out_s8 = String8(); 4614 4615 Mutex::Autolock _l(mLock); 4616 if (initCheck() != NO_ERROR) { 4617 return out_s8; 4618 } 4619 4620 s = mInput->stream->common.get_parameters(&mInput->stream->common, keys.string()); 4621 out_s8 = String8(s); 4622 free(s); 4623 return out_s8; 4624} 4625 4626void AudioFlinger::RecordThread::audioConfigChanged_l(int event, int param) { 4627 AudioSystem::OutputDescriptor desc; 4628 void *param2 = 0; 4629 4630 switch (event) { 4631 case AudioSystem::INPUT_OPENED: 4632 case AudioSystem::INPUT_CONFIG_CHANGED: 4633 desc.channels = mChannelMask; 4634 desc.samplingRate = mSampleRate; 4635 desc.format = mFormat; 4636 desc.frameCount = mFrameCount; 4637 desc.latency = 0; 4638 param2 = &desc; 4639 break; 4640 4641 case AudioSystem::INPUT_CLOSED: 4642 default: 4643 break; 4644 } 4645 mAudioFlinger->audioConfigChanged_l(event, mId, param2); 4646} 4647 4648void AudioFlinger::RecordThread::readInputParameters() 4649{ 4650 if (mRsmpInBuffer) delete mRsmpInBuffer; 4651 if (mRsmpOutBuffer) delete mRsmpOutBuffer; 4652 if (mResampler) delete mResampler; 4653 mResampler = 0; 4654 4655 mSampleRate = mInput->stream->common.get_sample_rate(&mInput->stream->common); 4656 mChannelMask = mInput->stream->common.get_channels(&mInput->stream->common); 4657 mChannelCount = (uint16_t)popcount(mChannelMask); 4658 mFormat = mInput->stream->common.get_format(&mInput->stream->common); 4659 mFrameSize = (uint16_t)audio_stream_frame_size(&mInput->stream->common); 4660 mInputBytes = mInput->stream->common.get_buffer_size(&mInput->stream->common); 4661 mFrameCount = mInputBytes / mFrameSize; 4662 mRsmpInBuffer = new int16_t[mFrameCount * mChannelCount]; 4663 4664 if (mSampleRate != mReqSampleRate && mChannelCount < 3 && mReqChannelCount < 3) 4665 { 4666 int channelCount; 4667 // optmization: if mono to mono, use the resampler in stereo to stereo mode to avoid 4668 // stereo to mono post process as the resampler always outputs stereo. 4669 if (mChannelCount == 1 && mReqChannelCount == 2) { 4670 channelCount = 1; 4671 } else { 4672 channelCount = 2; 4673 } 4674 mResampler = AudioResampler::create(16, channelCount, mReqSampleRate); 4675 mResampler->setSampleRate(mSampleRate); 4676 mResampler->setVolume(AudioMixer::UNITY_GAIN, AudioMixer::UNITY_GAIN); 4677 mRsmpOutBuffer = new int32_t[mFrameCount * 2]; 4678 4679 // optmization: if mono to mono, alter input frame count as if we were inputing stereo samples 4680 if (mChannelCount == 1 && mReqChannelCount == 1) { 4681 mFrameCount >>= 1; 4682 } 4683 4684 } 4685 mRsmpInIndex = mFrameCount; 4686} 4687 4688unsigned int AudioFlinger::RecordThread::getInputFramesLost() 4689{ 4690 Mutex::Autolock _l(mLock); 4691 if (initCheck() != NO_ERROR) { 4692 return 0; 4693 } 4694 4695 return mInput->stream->get_input_frames_lost(mInput->stream); 4696} 4697 4698uint32_t AudioFlinger::RecordThread::hasAudioSession(int sessionId) 4699{ 4700 Mutex::Autolock _l(mLock); 4701 uint32_t result = 0; 4702 if (getEffectChain_l(sessionId) != 0) { 4703 result = EFFECT_SESSION; 4704 } 4705 4706 if (mTrack != NULL && sessionId == mTrack->sessionId()) { 4707 result |= TRACK_SESSION; 4708 } 4709 4710 return result; 4711} 4712 4713AudioFlinger::RecordThread::RecordTrack* AudioFlinger::RecordThread::track() 4714{ 4715 Mutex::Autolock _l(mLock); 4716 return mTrack; 4717} 4718 4719AudioFlinger::AudioStreamIn* AudioFlinger::RecordThread::getInput() 4720{ 4721 Mutex::Autolock _l(mLock); 4722 return mInput; 4723} 4724 4725AudioFlinger::AudioStreamIn* AudioFlinger::RecordThread::clearInput() 4726{ 4727 Mutex::Autolock _l(mLock); 4728 AudioStreamIn *input = mInput; 4729 mInput = NULL; 4730 return input; 4731} 4732 4733// this method must always be called either with ThreadBase mLock held or inside the thread loop 4734audio_stream_t* AudioFlinger::RecordThread::stream() 4735{ 4736 if (mInput == NULL) { 4737 return NULL; 4738 } 4739 return &mInput->stream->common; 4740} 4741 4742 4743// ---------------------------------------------------------------------------- 4744 4745int AudioFlinger::openOutput(uint32_t *pDevices, 4746 uint32_t *pSamplingRate, 4747 uint32_t *pFormat, 4748 uint32_t *pChannels, 4749 uint32_t *pLatencyMs, 4750 uint32_t flags) 4751{ 4752 status_t status; 4753 PlaybackThread *thread = NULL; 4754 mHardwareStatus = AUDIO_HW_OUTPUT_OPEN; 4755 uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0; 4756 uint32_t format = pFormat ? *pFormat : 0; 4757 uint32_t channels = pChannels ? *pChannels : 0; 4758 uint32_t latency = pLatencyMs ? *pLatencyMs : 0; 4759 audio_stream_out_t *outStream; 4760 audio_hw_device_t *outHwDev; 4761 4762 LOGV("openOutput(), Device %x, SamplingRate %d, Format %d, Channels %x, flags %x", 4763 pDevices ? *pDevices : 0, 4764 samplingRate, 4765 format, 4766 channels, 4767 flags); 4768 4769 if (pDevices == NULL || *pDevices == 0) { 4770 return 0; 4771 } 4772 4773 Mutex::Autolock _l(mLock); 4774 4775 outHwDev = findSuitableHwDev_l(*pDevices); 4776 if (outHwDev == NULL) 4777 return 0; 4778 4779 status = outHwDev->open_output_stream(outHwDev, *pDevices, (int *)&format, 4780 &channels, &samplingRate, &outStream); 4781 LOGV("openOutput() openOutputStream returned output %p, SamplingRate %d, Format %d, Channels %x, status %d", 4782 outStream, 4783 samplingRate, 4784 format, 4785 channels, 4786 status); 4787 4788 mHardwareStatus = AUDIO_HW_IDLE; 4789 if (outStream != NULL) { 4790 AudioStreamOut *output = new AudioStreamOut(outHwDev, outStream); 4791 int id = nextUniqueId(); 4792 4793 if ((flags & AUDIO_POLICY_OUTPUT_FLAG_DIRECT) || 4794 (format != AUDIO_FORMAT_PCM_16_BIT) || 4795 (channels != AUDIO_CHANNEL_OUT_STEREO)) { 4796 thread = new DirectOutputThread(this, output, id, *pDevices); 4797 LOGV("openOutput() created direct output: ID %d thread %p", id, thread); 4798 } else { 4799 thread = new MixerThread(this, output, id, *pDevices); 4800 LOGV("openOutput() created mixer output: ID %d thread %p", id, thread); 4801 } 4802 mPlaybackThreads.add(id, thread); 4803 4804 if (pSamplingRate) *pSamplingRate = samplingRate; 4805 if (pFormat) *pFormat = format; 4806 if (pChannels) *pChannels = channels; 4807 if (pLatencyMs) *pLatencyMs = thread->latency(); 4808 4809 // notify client processes of the new output creation 4810 thread->audioConfigChanged_l(AudioSystem::OUTPUT_OPENED); 4811 return id; 4812 } 4813 4814 return 0; 4815} 4816 4817int AudioFlinger::openDuplicateOutput(int output1, int output2) 4818{ 4819 Mutex::Autolock _l(mLock); 4820 MixerThread *thread1 = checkMixerThread_l(output1); 4821 MixerThread *thread2 = checkMixerThread_l(output2); 4822 4823 if (thread1 == NULL || thread2 == NULL) { 4824 LOGW("openDuplicateOutput() wrong output mixer type for output %d or %d", output1, output2); 4825 return 0; 4826 } 4827 4828 int id = nextUniqueId(); 4829 DuplicatingThread *thread = new DuplicatingThread(this, thread1, id); 4830 thread->addOutputTrack(thread2); 4831 mPlaybackThreads.add(id, thread); 4832 // notify client processes of the new output creation 4833 thread->audioConfigChanged_l(AudioSystem::OUTPUT_OPENED); 4834 return id; 4835} 4836 4837status_t AudioFlinger::closeOutput(int output) 4838{ 4839 // keep strong reference on the playback thread so that 4840 // it is not destroyed while exit() is executed 4841 sp <PlaybackThread> thread; 4842 { 4843 Mutex::Autolock _l(mLock); 4844 thread = checkPlaybackThread_l(output); 4845 if (thread == NULL) { 4846 return BAD_VALUE; 4847 } 4848 4849 LOGV("closeOutput() %d", output); 4850 4851 if (thread->type() == ThreadBase::MIXER) { 4852 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 4853 if (mPlaybackThreads.valueAt(i)->type() == ThreadBase::DUPLICATING) { 4854 DuplicatingThread *dupThread = (DuplicatingThread *)mPlaybackThreads.valueAt(i).get(); 4855 dupThread->removeOutputTrack((MixerThread *)thread.get()); 4856 } 4857 } 4858 } 4859 void *param2 = 0; 4860 audioConfigChanged_l(AudioSystem::OUTPUT_CLOSED, output, param2); 4861 mPlaybackThreads.removeItem(output); 4862 } 4863 thread->exit(); 4864 4865 if (thread->type() != ThreadBase::DUPLICATING) { 4866 AudioStreamOut *out = thread->clearOutput(); 4867 // from now on thread->mOutput is NULL 4868 out->hwDev->close_output_stream(out->hwDev, out->stream); 4869 delete out; 4870 } 4871 return NO_ERROR; 4872} 4873 4874status_t AudioFlinger::suspendOutput(int output) 4875{ 4876 Mutex::Autolock _l(mLock); 4877 PlaybackThread *thread = checkPlaybackThread_l(output); 4878 4879 if (thread == NULL) { 4880 return BAD_VALUE; 4881 } 4882 4883 LOGV("suspendOutput() %d", output); 4884 thread->suspend(); 4885 4886 return NO_ERROR; 4887} 4888 4889status_t AudioFlinger::restoreOutput(int output) 4890{ 4891 Mutex::Autolock _l(mLock); 4892 PlaybackThread *thread = checkPlaybackThread_l(output); 4893 4894 if (thread == NULL) { 4895 return BAD_VALUE; 4896 } 4897 4898 LOGV("restoreOutput() %d", output); 4899 4900 thread->restore(); 4901 4902 return NO_ERROR; 4903} 4904 4905int AudioFlinger::openInput(uint32_t *pDevices, 4906 uint32_t *pSamplingRate, 4907 uint32_t *pFormat, 4908 uint32_t *pChannels, 4909 uint32_t acoustics) 4910{ 4911 status_t status; 4912 RecordThread *thread = NULL; 4913 uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0; 4914 uint32_t format = pFormat ? *pFormat : 0; 4915 uint32_t channels = pChannels ? *pChannels : 0; 4916 uint32_t reqSamplingRate = samplingRate; 4917 uint32_t reqFormat = format; 4918 uint32_t reqChannels = channels; 4919 audio_stream_in_t *inStream; 4920 audio_hw_device_t *inHwDev; 4921 4922 if (pDevices == NULL || *pDevices == 0) { 4923 return 0; 4924 } 4925 4926 Mutex::Autolock _l(mLock); 4927 4928 inHwDev = findSuitableHwDev_l(*pDevices); 4929 if (inHwDev == NULL) 4930 return 0; 4931 4932 status = inHwDev->open_input_stream(inHwDev, *pDevices, (int *)&format, 4933 &channels, &samplingRate, 4934 (audio_in_acoustics_t)acoustics, 4935 &inStream); 4936 LOGV("openInput() openInputStream returned input %p, SamplingRate %d, Format %d, Channels %x, acoustics %x, status %d", 4937 inStream, 4938 samplingRate, 4939 format, 4940 channels, 4941 acoustics, 4942 status); 4943 4944 // If the input could not be opened with the requested parameters and we can handle the conversion internally, 4945 // try to open again with the proposed parameters. The AudioFlinger can resample the input and do mono to stereo 4946 // or stereo to mono conversions on 16 bit PCM inputs. 4947 if (inStream == NULL && status == BAD_VALUE && 4948 reqFormat == format && format == AUDIO_FORMAT_PCM_16_BIT && 4949 (samplingRate <= 2 * reqSamplingRate) && 4950 (popcount(channels) < 3) && (popcount(reqChannels) < 3)) { 4951 LOGV("openInput() reopening with proposed sampling rate and channels"); 4952 status = inHwDev->open_input_stream(inHwDev, *pDevices, (int *)&format, 4953 &channels, &samplingRate, 4954 (audio_in_acoustics_t)acoustics, 4955 &inStream); 4956 } 4957 4958 if (inStream != NULL) { 4959 AudioStreamIn *input = new AudioStreamIn(inHwDev, inStream); 4960 4961 int id = nextUniqueId(); 4962 // Start record thread 4963 // RecorThread require both input and output device indication to forward to audio 4964 // pre processing modules 4965 uint32_t device = (*pDevices) | primaryOutputDevice_l(); 4966 thread = new RecordThread(this, 4967 input, 4968 reqSamplingRate, 4969 reqChannels, 4970 id, 4971 device); 4972 mRecordThreads.add(id, thread); 4973 LOGV("openInput() created record thread: ID %d thread %p", id, thread); 4974 if (pSamplingRate) *pSamplingRate = reqSamplingRate; 4975 if (pFormat) *pFormat = format; 4976 if (pChannels) *pChannels = reqChannels; 4977 4978 input->stream->common.standby(&input->stream->common); 4979 4980 // notify client processes of the new input creation 4981 thread->audioConfigChanged_l(AudioSystem::INPUT_OPENED); 4982 return id; 4983 } 4984 4985 return 0; 4986} 4987 4988status_t AudioFlinger::closeInput(int input) 4989{ 4990 // keep strong reference on the record thread so that 4991 // it is not destroyed while exit() is executed 4992 sp <RecordThread> thread; 4993 { 4994 Mutex::Autolock _l(mLock); 4995 thread = checkRecordThread_l(input); 4996 if (thread == NULL) { 4997 return BAD_VALUE; 4998 } 4999 5000 LOGV("closeInput() %d", input); 5001 void *param2 = 0; 5002 audioConfigChanged_l(AudioSystem::INPUT_CLOSED, input, param2); 5003 mRecordThreads.removeItem(input); 5004 } 5005 thread->exit(); 5006 5007 AudioStreamIn *in = thread->clearInput(); 5008 // from now on thread->mInput is NULL 5009 in->hwDev->close_input_stream(in->hwDev, in->stream); 5010 delete in; 5011 5012 return NO_ERROR; 5013} 5014 5015status_t AudioFlinger::setStreamOutput(uint32_t stream, int output) 5016{ 5017 Mutex::Autolock _l(mLock); 5018 MixerThread *dstThread = checkMixerThread_l(output); 5019 if (dstThread == NULL) { 5020 LOGW("setStreamOutput() bad output id %d", output); 5021 return BAD_VALUE; 5022 } 5023 5024 LOGV("setStreamOutput() stream %d to output %d", stream, output); 5025 audioConfigChanged_l(AudioSystem::STREAM_CONFIG_CHANGED, output, &stream); 5026 5027 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 5028 PlaybackThread *thread = mPlaybackThreads.valueAt(i).get(); 5029 if (thread != dstThread && 5030 thread->type() != ThreadBase::DIRECT) { 5031 MixerThread *srcThread = (MixerThread *)thread; 5032 srcThread->invalidateTracks(stream); 5033 } 5034 } 5035 5036 return NO_ERROR; 5037} 5038 5039 5040int AudioFlinger::newAudioSessionId() 5041{ 5042 return nextUniqueId(); 5043} 5044 5045// checkPlaybackThread_l() must be called with AudioFlinger::mLock held 5046AudioFlinger::PlaybackThread *AudioFlinger::checkPlaybackThread_l(int output) const 5047{ 5048 PlaybackThread *thread = NULL; 5049 if (mPlaybackThreads.indexOfKey(output) >= 0) { 5050 thread = (PlaybackThread *)mPlaybackThreads.valueFor(output).get(); 5051 } 5052 return thread; 5053} 5054 5055// checkMixerThread_l() must be called with AudioFlinger::mLock held 5056AudioFlinger::MixerThread *AudioFlinger::checkMixerThread_l(int output) const 5057{ 5058 PlaybackThread *thread = checkPlaybackThread_l(output); 5059 if (thread != NULL) { 5060 if (thread->type() == ThreadBase::DIRECT) { 5061 thread = NULL; 5062 } 5063 } 5064 return (MixerThread *)thread; 5065} 5066 5067// checkRecordThread_l() must be called with AudioFlinger::mLock held 5068AudioFlinger::RecordThread *AudioFlinger::checkRecordThread_l(int input) const 5069{ 5070 RecordThread *thread = NULL; 5071 if (mRecordThreads.indexOfKey(input) >= 0) { 5072 thread = (RecordThread *)mRecordThreads.valueFor(input).get(); 5073 } 5074 return thread; 5075} 5076 5077uint32_t AudioFlinger::nextUniqueId() 5078{ 5079 return android_atomic_inc(&mNextUniqueId); 5080} 5081 5082AudioFlinger::PlaybackThread *AudioFlinger::primaryPlaybackThread_l() 5083{ 5084 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 5085 PlaybackThread *thread = mPlaybackThreads.valueAt(i).get(); 5086 AudioStreamOut *output = thread->getOutput(); 5087 if (output != NULL && output->hwDev == mPrimaryHardwareDev) { 5088 return thread; 5089 } 5090 } 5091 return NULL; 5092} 5093 5094uint32_t AudioFlinger::primaryOutputDevice_l() 5095{ 5096 PlaybackThread *thread = primaryPlaybackThread_l(); 5097 5098 if (thread == NULL) { 5099 return 0; 5100 } 5101 5102 return thread->device(); 5103} 5104 5105 5106// ---------------------------------------------------------------------------- 5107// Effect management 5108// ---------------------------------------------------------------------------- 5109 5110 5111status_t AudioFlinger::queryNumberEffects(uint32_t *numEffects) 5112{ 5113 Mutex::Autolock _l(mLock); 5114 return EffectQueryNumberEffects(numEffects); 5115} 5116 5117status_t AudioFlinger::queryEffect(uint32_t index, effect_descriptor_t *descriptor) 5118{ 5119 Mutex::Autolock _l(mLock); 5120 return EffectQueryEffect(index, descriptor); 5121} 5122 5123status_t AudioFlinger::getEffectDescriptor(effect_uuid_t *pUuid, effect_descriptor_t *descriptor) 5124{ 5125 Mutex::Autolock _l(mLock); 5126 return EffectGetDescriptor(pUuid, descriptor); 5127} 5128 5129 5130sp<IEffect> AudioFlinger::createEffect(pid_t pid, 5131 effect_descriptor_t *pDesc, 5132 const sp<IEffectClient>& effectClient, 5133 int32_t priority, 5134 int io, 5135 int sessionId, 5136 status_t *status, 5137 int *id, 5138 int *enabled) 5139{ 5140 status_t lStatus = NO_ERROR; 5141 sp<EffectHandle> handle; 5142 effect_descriptor_t desc; 5143 sp<Client> client; 5144 wp<Client> wclient; 5145 5146 LOGV("createEffect pid %d, client %p, priority %d, sessionId %d, io %d", 5147 pid, effectClient.get(), priority, sessionId, io); 5148 5149 if (pDesc == NULL) { 5150 lStatus = BAD_VALUE; 5151 goto Exit; 5152 } 5153 5154 // check audio settings permission for global effects 5155 if (sessionId == AUDIO_SESSION_OUTPUT_MIX && !settingsAllowed()) { 5156 lStatus = PERMISSION_DENIED; 5157 goto Exit; 5158 } 5159 5160 // Session AUDIO_SESSION_OUTPUT_STAGE is reserved for output stage effects 5161 // that can only be created by audio policy manager (running in same process) 5162 if (sessionId == AUDIO_SESSION_OUTPUT_STAGE && getpid() != pid) { 5163 lStatus = PERMISSION_DENIED; 5164 goto Exit; 5165 } 5166 5167 if (io == 0) { 5168 if (sessionId == AUDIO_SESSION_OUTPUT_STAGE) { 5169 // output must be specified by AudioPolicyManager when using session 5170 // AUDIO_SESSION_OUTPUT_STAGE 5171 lStatus = BAD_VALUE; 5172 goto Exit; 5173 } else if (sessionId == AUDIO_SESSION_OUTPUT_MIX) { 5174 // if the output returned by getOutputForEffect() is removed before we lock the 5175 // mutex below, the call to checkPlaybackThread_l(io) below will detect it 5176 // and we will exit safely 5177 io = AudioSystem::getOutputForEffect(&desc); 5178 } 5179 } 5180 5181 { 5182 Mutex::Autolock _l(mLock); 5183 5184 5185 if (!EffectIsNullUuid(&pDesc->uuid)) { 5186 // if uuid is specified, request effect descriptor 5187 lStatus = EffectGetDescriptor(&pDesc->uuid, &desc); 5188 if (lStatus < 0) { 5189 LOGW("createEffect() error %d from EffectGetDescriptor", lStatus); 5190 goto Exit; 5191 } 5192 } else { 5193 // if uuid is not specified, look for an available implementation 5194 // of the required type in effect factory 5195 if (EffectIsNullUuid(&pDesc->type)) { 5196 LOGW("createEffect() no effect type"); 5197 lStatus = BAD_VALUE; 5198 goto Exit; 5199 } 5200 uint32_t numEffects = 0; 5201 effect_descriptor_t d; 5202 bool found = false; 5203 5204 lStatus = EffectQueryNumberEffects(&numEffects); 5205 if (lStatus < 0) { 5206 LOGW("createEffect() error %d from EffectQueryNumberEffects", lStatus); 5207 goto Exit; 5208 } 5209 for (uint32_t i = 0; i < numEffects; i++) { 5210 lStatus = EffectQueryEffect(i, &desc); 5211 if (lStatus < 0) { 5212 LOGW("createEffect() error %d from EffectQueryEffect", lStatus); 5213 continue; 5214 } 5215 if (memcmp(&desc.type, &pDesc->type, sizeof(effect_uuid_t)) == 0) { 5216 // If matching type found save effect descriptor. If the session is 5217 // 0 and the effect is not auxiliary, continue enumeration in case 5218 // an auxiliary version of this effect type is available 5219 found = true; 5220 memcpy(&d, &desc, sizeof(effect_descriptor_t)); 5221 if (sessionId != AUDIO_SESSION_OUTPUT_MIX || 5222 (desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5223 break; 5224 } 5225 } 5226 } 5227 if (!found) { 5228 lStatus = BAD_VALUE; 5229 LOGW("createEffect() effect not found"); 5230 goto Exit; 5231 } 5232 // For same effect type, chose auxiliary version over insert version if 5233 // connect to output mix (Compliance to OpenSL ES) 5234 if (sessionId == AUDIO_SESSION_OUTPUT_MIX && 5235 (d.flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_AUXILIARY) { 5236 memcpy(&desc, &d, sizeof(effect_descriptor_t)); 5237 } 5238 } 5239 5240 // Do not allow auxiliary effects on a session different from 0 (output mix) 5241 if (sessionId != AUDIO_SESSION_OUTPUT_MIX && 5242 (desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5243 lStatus = INVALID_OPERATION; 5244 goto Exit; 5245 } 5246 5247 // check recording permission for visualizer 5248 if ((memcmp(&desc.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0) && 5249 !recordingAllowed()) { 5250 lStatus = PERMISSION_DENIED; 5251 goto Exit; 5252 } 5253 5254 // return effect descriptor 5255 memcpy(pDesc, &desc, sizeof(effect_descriptor_t)); 5256 5257 // If output is not specified try to find a matching audio session ID in one of the 5258 // output threads. 5259 // If output is 0 here, sessionId is neither SESSION_OUTPUT_STAGE nor SESSION_OUTPUT_MIX 5260 // because of code checking output when entering the function. 5261 // Note: io is never 0 when creating an effect on an input 5262 if (io == 0) { 5263 // look for the thread where the specified audio session is present 5264 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 5265 if (mPlaybackThreads.valueAt(i)->hasAudioSession(sessionId) != 0) { 5266 io = mPlaybackThreads.keyAt(i); 5267 break; 5268 } 5269 } 5270 if (io == 0) { 5271 for (size_t i = 0; i < mRecordThreads.size(); i++) { 5272 if (mRecordThreads.valueAt(i)->hasAudioSession(sessionId) != 0) { 5273 io = mRecordThreads.keyAt(i); 5274 break; 5275 } 5276 } 5277 } 5278 // If no output thread contains the requested session ID, default to 5279 // first output. The effect chain will be moved to the correct output 5280 // thread when a track with the same session ID is created 5281 if (io == 0 && mPlaybackThreads.size()) { 5282 io = mPlaybackThreads.keyAt(0); 5283 } 5284 LOGV("createEffect() got io %d for effect %s", io, desc.name); 5285 } 5286 ThreadBase *thread = checkRecordThread_l(io); 5287 if (thread == NULL) { 5288 thread = checkPlaybackThread_l(io); 5289 if (thread == NULL) { 5290 LOGE("createEffect() unknown output thread"); 5291 lStatus = BAD_VALUE; 5292 goto Exit; 5293 } 5294 } 5295 5296 wclient = mClients.valueFor(pid); 5297 5298 if (wclient != NULL) { 5299 client = wclient.promote(); 5300 } else { 5301 client = new Client(this, pid); 5302 mClients.add(pid, client); 5303 } 5304 5305 // create effect on selected output trhead 5306 handle = thread->createEffect_l(client, effectClient, priority, sessionId, 5307 &desc, enabled, &lStatus); 5308 if (handle != 0 && id != NULL) { 5309 *id = handle->id(); 5310 } 5311 } 5312 5313Exit: 5314 if(status) { 5315 *status = lStatus; 5316 } 5317 return handle; 5318} 5319 5320status_t AudioFlinger::moveEffects(int sessionId, int srcOutput, int dstOutput) 5321{ 5322 LOGV("moveEffects() session %d, srcOutput %d, dstOutput %d", 5323 sessionId, srcOutput, dstOutput); 5324 Mutex::Autolock _l(mLock); 5325 if (srcOutput == dstOutput) { 5326 LOGW("moveEffects() same dst and src outputs %d", dstOutput); 5327 return NO_ERROR; 5328 } 5329 PlaybackThread *srcThread = checkPlaybackThread_l(srcOutput); 5330 if (srcThread == NULL) { 5331 LOGW("moveEffects() bad srcOutput %d", srcOutput); 5332 return BAD_VALUE; 5333 } 5334 PlaybackThread *dstThread = checkPlaybackThread_l(dstOutput); 5335 if (dstThread == NULL) { 5336 LOGW("moveEffects() bad dstOutput %d", dstOutput); 5337 return BAD_VALUE; 5338 } 5339 5340 Mutex::Autolock _dl(dstThread->mLock); 5341 Mutex::Autolock _sl(srcThread->mLock); 5342 moveEffectChain_l(sessionId, srcThread, dstThread, false); 5343 5344 return NO_ERROR; 5345} 5346 5347// moveEffectChain_l mustbe called with both srcThread and dstThread mLocks held 5348status_t AudioFlinger::moveEffectChain_l(int sessionId, 5349 AudioFlinger::PlaybackThread *srcThread, 5350 AudioFlinger::PlaybackThread *dstThread, 5351 bool reRegister) 5352{ 5353 LOGV("moveEffectChain_l() session %d from thread %p to thread %p", 5354 sessionId, srcThread, dstThread); 5355 5356 sp<EffectChain> chain = srcThread->getEffectChain_l(sessionId); 5357 if (chain == 0) { 5358 LOGW("moveEffectChain_l() effect chain for session %d not on source thread %p", 5359 sessionId, srcThread); 5360 return INVALID_OPERATION; 5361 } 5362 5363 // remove chain first. This is useful only if reconfiguring effect chain on same output thread, 5364 // so that a new chain is created with correct parameters when first effect is added. This is 5365 // otherwise unecessary as removeEffect_l() will remove the chain when last effect is 5366 // removed. 5367 srcThread->removeEffectChain_l(chain); 5368 5369 // transfer all effects one by one so that new effect chain is created on new thread with 5370 // correct buffer sizes and audio parameters and effect engines reconfigured accordingly 5371 int dstOutput = dstThread->id(); 5372 sp<EffectChain> dstChain; 5373 uint32_t strategy; 5374 sp<EffectModule> effect = chain->getEffectFromId_l(0); 5375 while (effect != 0) { 5376 srcThread->removeEffect_l(effect); 5377 dstThread->addEffect_l(effect); 5378 // if the move request is not received from audio policy manager, the effect must be 5379 // re-registered with the new strategy and output 5380 if (dstChain == 0) { 5381 dstChain = effect->chain().promote(); 5382 if (dstChain == 0) { 5383 LOGW("moveEffectChain_l() cannot get chain from effect %p", effect.get()); 5384 srcThread->addEffect_l(effect); 5385 return NO_INIT; 5386 } 5387 strategy = dstChain->strategy(); 5388 } 5389 if (reRegister) { 5390 AudioSystem::unregisterEffect(effect->id()); 5391 AudioSystem::registerEffect(&effect->desc(), 5392 dstOutput, 5393 strategy, 5394 sessionId, 5395 effect->id()); 5396 } 5397 effect = chain->getEffectFromId_l(0); 5398 } 5399 5400 return NO_ERROR; 5401} 5402 5403 5404// PlaybackThread::createEffect_l() must be called with AudioFlinger::mLock held 5405sp<AudioFlinger::EffectHandle> AudioFlinger::ThreadBase::createEffect_l( 5406 const sp<AudioFlinger::Client>& client, 5407 const sp<IEffectClient>& effectClient, 5408 int32_t priority, 5409 int sessionId, 5410 effect_descriptor_t *desc, 5411 int *enabled, 5412 status_t *status 5413 ) 5414{ 5415 sp<EffectModule> effect; 5416 sp<EffectHandle> handle; 5417 status_t lStatus; 5418 sp<EffectChain> chain; 5419 bool chainCreated = false; 5420 bool effectCreated = false; 5421 bool effectRegistered = false; 5422 5423 lStatus = initCheck(); 5424 if (lStatus != NO_ERROR) { 5425 LOGW("createEffect_l() Audio driver not initialized."); 5426 goto Exit; 5427 } 5428 5429 // Do not allow effects with session ID 0 on direct output or duplicating threads 5430 // TODO: add rule for hw accelerated effects on direct outputs with non PCM format 5431 if (sessionId == AUDIO_SESSION_OUTPUT_MIX && mType != MIXER) { 5432 LOGW("createEffect_l() Cannot add auxiliary effect %s to session %d", 5433 desc->name, sessionId); 5434 lStatus = BAD_VALUE; 5435 goto Exit; 5436 } 5437 // Only Pre processor effects are allowed on input threads and only on input threads 5438 if ((mType == RECORD && 5439 (desc->flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_PRE_PROC) || 5440 (mType != RECORD && 5441 (desc->flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC)) { 5442 LOGW("createEffect_l() effect %s (flags %08x) created on wrong thread type %d", 5443 desc->name, desc->flags, mType); 5444 lStatus = BAD_VALUE; 5445 goto Exit; 5446 } 5447 5448 LOGV("createEffect_l() thread %p effect %s on session %d", this, desc->name, sessionId); 5449 5450 { // scope for mLock 5451 Mutex::Autolock _l(mLock); 5452 5453 // check for existing effect chain with the requested audio session 5454 chain = getEffectChain_l(sessionId); 5455 if (chain == 0) { 5456 // create a new chain for this session 5457 LOGV("createEffect_l() new effect chain for session %d", sessionId); 5458 chain = new EffectChain(this, sessionId); 5459 addEffectChain_l(chain); 5460 chain->setStrategy(getStrategyForSession_l(sessionId)); 5461 chainCreated = true; 5462 } else { 5463 effect = chain->getEffectFromDesc_l(desc); 5464 } 5465 5466 LOGV("createEffect_l() got effect %p on chain %p", effect == 0 ? 0 : effect.get(), chain.get()); 5467 5468 if (effect == 0) { 5469 int id = mAudioFlinger->nextUniqueId(); 5470 // Check CPU and memory usage 5471 lStatus = AudioSystem::registerEffect(desc, mId, chain->strategy(), sessionId, id); 5472 if (lStatus != NO_ERROR) { 5473 goto Exit; 5474 } 5475 effectRegistered = true; 5476 // create a new effect module if none present in the chain 5477 effect = new EffectModule(this, chain, desc, id, sessionId); 5478 lStatus = effect->status(); 5479 if (lStatus != NO_ERROR) { 5480 goto Exit; 5481 } 5482 lStatus = chain->addEffect_l(effect); 5483 if (lStatus != NO_ERROR) { 5484 goto Exit; 5485 } 5486 effectCreated = true; 5487 5488 effect->setDevice(mDevice); 5489 effect->setMode(mAudioFlinger->getMode()); 5490 } 5491 // create effect handle and connect it to effect module 5492 handle = new EffectHandle(effect, client, effectClient, priority); 5493 lStatus = effect->addHandle(handle); 5494 if (enabled) { 5495 *enabled = (int)effect->isEnabled(); 5496 } 5497 } 5498 5499Exit: 5500 if (lStatus != NO_ERROR && lStatus != ALREADY_EXISTS) { 5501 Mutex::Autolock _l(mLock); 5502 if (effectCreated) { 5503 chain->removeEffect_l(effect); 5504 } 5505 if (effectRegistered) { 5506 AudioSystem::unregisterEffect(effect->id()); 5507 } 5508 if (chainCreated) { 5509 removeEffectChain_l(chain); 5510 } 5511 handle.clear(); 5512 } 5513 5514 if(status) { 5515 *status = lStatus; 5516 } 5517 return handle; 5518} 5519 5520sp<AudioFlinger::EffectModule> AudioFlinger::ThreadBase::getEffect_l(int sessionId, int effectId) 5521{ 5522 sp<EffectModule> effect; 5523 5524 sp<EffectChain> chain = getEffectChain_l(sessionId); 5525 if (chain != 0) { 5526 effect = chain->getEffectFromId_l(effectId); 5527 } 5528 return effect; 5529} 5530 5531// PlaybackThread::addEffect_l() must be called with AudioFlinger::mLock and 5532// PlaybackThread::mLock held 5533status_t AudioFlinger::ThreadBase::addEffect_l(const sp<EffectModule>& effect) 5534{ 5535 // check for existing effect chain with the requested audio session 5536 int sessionId = effect->sessionId(); 5537 sp<EffectChain> chain = getEffectChain_l(sessionId); 5538 bool chainCreated = false; 5539 5540 if (chain == 0) { 5541 // create a new chain for this session 5542 LOGV("addEffect_l() new effect chain for session %d", sessionId); 5543 chain = new EffectChain(this, sessionId); 5544 addEffectChain_l(chain); 5545 chain->setStrategy(getStrategyForSession_l(sessionId)); 5546 chainCreated = true; 5547 } 5548 LOGV("addEffect_l() %p chain %p effect %p", this, chain.get(), effect.get()); 5549 5550 if (chain->getEffectFromId_l(effect->id()) != 0) { 5551 LOGW("addEffect_l() %p effect %s already present in chain %p", 5552 this, effect->desc().name, chain.get()); 5553 return BAD_VALUE; 5554 } 5555 5556 status_t status = chain->addEffect_l(effect); 5557 if (status != NO_ERROR) { 5558 if (chainCreated) { 5559 removeEffectChain_l(chain); 5560 } 5561 return status; 5562 } 5563 5564 effect->setDevice(mDevice); 5565 effect->setMode(mAudioFlinger->getMode()); 5566 return NO_ERROR; 5567} 5568 5569void AudioFlinger::ThreadBase::removeEffect_l(const sp<EffectModule>& effect) { 5570 5571 LOGV("removeEffect_l() %p effect %p", this, effect.get()); 5572 effect_descriptor_t desc = effect->desc(); 5573 if ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5574 detachAuxEffect_l(effect->id()); 5575 } 5576 5577 sp<EffectChain> chain = effect->chain().promote(); 5578 if (chain != 0) { 5579 // remove effect chain if removing last effect 5580 if (chain->removeEffect_l(effect) == 0) { 5581 removeEffectChain_l(chain); 5582 } 5583 } else { 5584 LOGW("removeEffect_l() %p cannot promote chain for effect %p", this, effect.get()); 5585 } 5586} 5587 5588void AudioFlinger::ThreadBase::lockEffectChains_l( 5589 Vector<sp <AudioFlinger::EffectChain> >& effectChains) 5590{ 5591 effectChains = mEffectChains; 5592 for (size_t i = 0; i < mEffectChains.size(); i++) { 5593 mEffectChains[i]->lock(); 5594 } 5595} 5596 5597void AudioFlinger::ThreadBase::unlockEffectChains( 5598 Vector<sp <AudioFlinger::EffectChain> >& effectChains) 5599{ 5600 for (size_t i = 0; i < effectChains.size(); i++) { 5601 effectChains[i]->unlock(); 5602 } 5603} 5604 5605sp<AudioFlinger::EffectChain> AudioFlinger::ThreadBase::getEffectChain(int sessionId) 5606{ 5607 Mutex::Autolock _l(mLock); 5608 return getEffectChain_l(sessionId); 5609} 5610 5611sp<AudioFlinger::EffectChain> AudioFlinger::ThreadBase::getEffectChain_l(int sessionId) 5612{ 5613 sp<EffectChain> chain; 5614 5615 size_t size = mEffectChains.size(); 5616 for (size_t i = 0; i < size; i++) { 5617 if (mEffectChains[i]->sessionId() == sessionId) { 5618 chain = mEffectChains[i]; 5619 break; 5620 } 5621 } 5622 return chain; 5623} 5624 5625void AudioFlinger::ThreadBase::setMode(uint32_t mode) 5626{ 5627 Mutex::Autolock _l(mLock); 5628 size_t size = mEffectChains.size(); 5629 for (size_t i = 0; i < size; i++) { 5630 mEffectChains[i]->setMode_l(mode); 5631 } 5632} 5633 5634void AudioFlinger::ThreadBase::disconnectEffect(const sp<EffectModule>& effect, 5635 const wp<EffectHandle>& handle) { 5636 5637 Mutex::Autolock _l(mLock); 5638 LOGV("disconnectEffect() %p effect %p", this, effect.get()); 5639 // delete the effect module if removing last handle on it 5640 if (effect->removeHandle(handle) == 0) { 5641 removeEffect_l(effect); 5642 AudioSystem::unregisterEffect(effect->id()); 5643 } 5644} 5645 5646status_t AudioFlinger::PlaybackThread::addEffectChain_l(const sp<EffectChain>& chain) 5647{ 5648 int session = chain->sessionId(); 5649 int16_t *buffer = mMixBuffer; 5650 bool ownsBuffer = false; 5651 5652 LOGV("addEffectChain_l() %p on thread %p for session %d", chain.get(), this, session); 5653 if (session > 0) { 5654 // Only one effect chain can be present in direct output thread and it uses 5655 // the mix buffer as input 5656 if (mType != DIRECT) { 5657 size_t numSamples = mFrameCount * mChannelCount; 5658 buffer = new int16_t[numSamples]; 5659 memset(buffer, 0, numSamples * sizeof(int16_t)); 5660 LOGV("addEffectChain_l() creating new input buffer %p session %d", buffer, session); 5661 ownsBuffer = true; 5662 } 5663 5664 // Attach all tracks with same session ID to this chain. 5665 for (size_t i = 0; i < mTracks.size(); ++i) { 5666 sp<Track> track = mTracks[i]; 5667 if (session == track->sessionId()) { 5668 LOGV("addEffectChain_l() track->setMainBuffer track %p buffer %p", track.get(), buffer); 5669 track->setMainBuffer(buffer); 5670 chain->incTrackCnt(); 5671 } 5672 } 5673 5674 // indicate all active tracks in the chain 5675 for (size_t i = 0 ; i < mActiveTracks.size() ; ++i) { 5676 sp<Track> track = mActiveTracks[i].promote(); 5677 if (track == 0) continue; 5678 if (session == track->sessionId()) { 5679 LOGV("addEffectChain_l() activating track %p on session %d", track.get(), session); 5680 chain->incActiveTrackCnt(); 5681 } 5682 } 5683 } 5684 5685 chain->setInBuffer(buffer, ownsBuffer); 5686 chain->setOutBuffer(mMixBuffer); 5687 // Effect chain for session AUDIO_SESSION_OUTPUT_STAGE is inserted at end of effect 5688 // chains list in order to be processed last as it contains output stage effects 5689 // Effect chain for session AUDIO_SESSION_OUTPUT_MIX is inserted before 5690 // session AUDIO_SESSION_OUTPUT_STAGE to be processed 5691 // after track specific effects and before output stage 5692 // It is therefore mandatory that AUDIO_SESSION_OUTPUT_MIX == 0 and 5693 // that AUDIO_SESSION_OUTPUT_STAGE < AUDIO_SESSION_OUTPUT_MIX 5694 // Effect chain for other sessions are inserted at beginning of effect 5695 // chains list to be processed before output mix effects. Relative order between other 5696 // sessions is not important 5697 size_t size = mEffectChains.size(); 5698 size_t i = 0; 5699 for (i = 0; i < size; i++) { 5700 if (mEffectChains[i]->sessionId() < session) break; 5701 } 5702 mEffectChains.insertAt(chain, i); 5703 checkSuspendOnAddEffectChain_l(chain); 5704 5705 return NO_ERROR; 5706} 5707 5708size_t AudioFlinger::PlaybackThread::removeEffectChain_l(const sp<EffectChain>& chain) 5709{ 5710 int session = chain->sessionId(); 5711 5712 LOGV("removeEffectChain_l() %p from thread %p for session %d", chain.get(), this, session); 5713 5714 for (size_t i = 0; i < mEffectChains.size(); i++) { 5715 if (chain == mEffectChains[i]) { 5716 updateSuspendedSessionsOnRemoveEffectChain_l(chain); 5717 mEffectChains.removeAt(i); 5718 // detach all active tracks from the chain 5719 for (size_t i = 0 ; i < mActiveTracks.size() ; ++i) { 5720 sp<Track> track = mActiveTracks[i].promote(); 5721 if (track == 0) continue; 5722 if (session == track->sessionId()) { 5723 LOGV("removeEffectChain_l(): stopping track on chain %p for session Id: %d", 5724 chain.get(), session); 5725 chain->decActiveTrackCnt(); 5726 } 5727 } 5728 5729 // detach all tracks with same session ID from this chain 5730 for (size_t i = 0; i < mTracks.size(); ++i) { 5731 sp<Track> track = mTracks[i]; 5732 if (session == track->sessionId()) { 5733 track->setMainBuffer(mMixBuffer); 5734 chain->decTrackCnt(); 5735 } 5736 } 5737 break; 5738 } 5739 } 5740 return mEffectChains.size(); 5741} 5742 5743status_t AudioFlinger::PlaybackThread::attachAuxEffect( 5744 const sp<AudioFlinger::PlaybackThread::Track> track, int EffectId) 5745{ 5746 Mutex::Autolock _l(mLock); 5747 return attachAuxEffect_l(track, EffectId); 5748} 5749 5750status_t AudioFlinger::PlaybackThread::attachAuxEffect_l( 5751 const sp<AudioFlinger::PlaybackThread::Track> track, int EffectId) 5752{ 5753 status_t status = NO_ERROR; 5754 5755 if (EffectId == 0) { 5756 track->setAuxBuffer(0, NULL); 5757 } else { 5758 // Auxiliary effects are always in audio session AUDIO_SESSION_OUTPUT_MIX 5759 sp<EffectModule> effect = getEffect_l(AUDIO_SESSION_OUTPUT_MIX, EffectId); 5760 if (effect != 0) { 5761 if ((effect->desc().flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5762 track->setAuxBuffer(EffectId, (int32_t *)effect->inBuffer()); 5763 } else { 5764 status = INVALID_OPERATION; 5765 } 5766 } else { 5767 status = BAD_VALUE; 5768 } 5769 } 5770 return status; 5771} 5772 5773void AudioFlinger::PlaybackThread::detachAuxEffect_l(int effectId) 5774{ 5775 for (size_t i = 0; i < mTracks.size(); ++i) { 5776 sp<Track> track = mTracks[i]; 5777 if (track->auxEffectId() == effectId) { 5778 attachAuxEffect_l(track, 0); 5779 } 5780 } 5781} 5782 5783status_t AudioFlinger::RecordThread::addEffectChain_l(const sp<EffectChain>& chain) 5784{ 5785 // only one chain per input thread 5786 if (mEffectChains.size() != 0) { 5787 return INVALID_OPERATION; 5788 } 5789 LOGV("addEffectChain_l() %p on thread %p", chain.get(), this); 5790 5791 chain->setInBuffer(NULL); 5792 chain->setOutBuffer(NULL); 5793 5794 checkSuspendOnAddEffectChain_l(chain); 5795 5796 mEffectChains.add(chain); 5797 5798 return NO_ERROR; 5799} 5800 5801size_t AudioFlinger::RecordThread::removeEffectChain_l(const sp<EffectChain>& chain) 5802{ 5803 LOGV("removeEffectChain_l() %p from thread %p", chain.get(), this); 5804 LOGW_IF(mEffectChains.size() != 1, 5805 "removeEffectChain_l() %p invalid chain size %d on thread %p", 5806 chain.get(), mEffectChains.size(), this); 5807 if (mEffectChains.size() == 1) { 5808 updateSuspendedSessionsOnRemoveEffectChain_l(chain); 5809 mEffectChains.removeAt(0); 5810 } 5811 return 0; 5812} 5813 5814// ---------------------------------------------------------------------------- 5815// EffectModule implementation 5816// ---------------------------------------------------------------------------- 5817 5818#undef LOG_TAG 5819#define LOG_TAG "AudioFlinger::EffectModule" 5820 5821AudioFlinger::EffectModule::EffectModule(const wp<ThreadBase>& wThread, 5822 const wp<AudioFlinger::EffectChain>& chain, 5823 effect_descriptor_t *desc, 5824 int id, 5825 int sessionId) 5826 : mThread(wThread), mChain(chain), mId(id), mSessionId(sessionId), mEffectInterface(NULL), 5827 mStatus(NO_INIT), mState(IDLE), mSuspended(false) 5828{ 5829 LOGV("Constructor %p", this); 5830 int lStatus; 5831 sp<ThreadBase> thread = mThread.promote(); 5832 if (thread == 0) { 5833 return; 5834 } 5835 5836 memcpy(&mDescriptor, desc, sizeof(effect_descriptor_t)); 5837 5838 // create effect engine from effect factory 5839 mStatus = EffectCreate(&desc->uuid, sessionId, thread->id(), &mEffectInterface); 5840 5841 if (mStatus != NO_ERROR) { 5842 return; 5843 } 5844 lStatus = init(); 5845 if (lStatus < 0) { 5846 mStatus = lStatus; 5847 goto Error; 5848 } 5849 5850 LOGV("Constructor success name %s, Interface %p", mDescriptor.name, mEffectInterface); 5851 return; 5852Error: 5853 EffectRelease(mEffectInterface); 5854 mEffectInterface = NULL; 5855 LOGV("Constructor Error %d", mStatus); 5856} 5857 5858AudioFlinger::EffectModule::~EffectModule() 5859{ 5860 LOGV("Destructor %p", this); 5861 if (mEffectInterface != NULL) { 5862 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 5863 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) { 5864 sp<ThreadBase> thread = mThread.promote(); 5865 if (thread != 0) { 5866 audio_stream_t *stream = thread->stream(); 5867 if (stream != NULL) { 5868 stream->remove_audio_effect(stream, mEffectInterface); 5869 } 5870 } 5871 } 5872 // release effect engine 5873 EffectRelease(mEffectInterface); 5874 } 5875} 5876 5877status_t AudioFlinger::EffectModule::addHandle(sp<EffectHandle>& handle) 5878{ 5879 status_t status; 5880 5881 Mutex::Autolock _l(mLock); 5882 // First handle in mHandles has highest priority and controls the effect module 5883 int priority = handle->priority(); 5884 size_t size = mHandles.size(); 5885 sp<EffectHandle> h; 5886 size_t i; 5887 for (i = 0; i < size; i++) { 5888 h = mHandles[i].promote(); 5889 if (h == 0) continue; 5890 if (h->priority() <= priority) break; 5891 } 5892 // if inserted in first place, move effect control from previous owner to this handle 5893 if (i == 0) { 5894 bool enabled = false; 5895 if (h != 0) { 5896 enabled = h->enabled(); 5897 h->setControl(false/*hasControl*/, true /*signal*/, enabled /*enabled*/); 5898 } 5899 handle->setControl(true /*hasControl*/, false /*signal*/, enabled /*enabled*/); 5900 status = NO_ERROR; 5901 } else { 5902 status = ALREADY_EXISTS; 5903 } 5904 LOGV("addHandle() %p added handle %p in position %d", this, handle.get(), i); 5905 mHandles.insertAt(handle, i); 5906 return status; 5907} 5908 5909size_t AudioFlinger::EffectModule::removeHandle(const wp<EffectHandle>& handle) 5910{ 5911 Mutex::Autolock _l(mLock); 5912 size_t size = mHandles.size(); 5913 size_t i; 5914 for (i = 0; i < size; i++) { 5915 if (mHandles[i] == handle) break; 5916 } 5917 if (i == size) { 5918 return size; 5919 } 5920 LOGV("removeHandle() %p removed handle %p in position %d", this, handle.unsafe_get(), i); 5921 5922 bool enabled = false; 5923 EffectHandle *hdl = handle.unsafe_get(); 5924 if (hdl) { 5925 LOGV("removeHandle() unsafe_get OK"); 5926 enabled = hdl->enabled(); 5927 } 5928 mHandles.removeAt(i); 5929 size = mHandles.size(); 5930 // if removed from first place, move effect control from this handle to next in line 5931 if (i == 0 && size != 0) { 5932 sp<EffectHandle> h = mHandles[0].promote(); 5933 if (h != 0) { 5934 h->setControl(true /*hasControl*/, true /*signal*/ , enabled /*enabled*/); 5935 } 5936 } 5937 5938 // Prevent calls to process() and other functions on effect interface from now on. 5939 // The effect engine will be released by the destructor when the last strong reference on 5940 // this object is released which can happen after next process is called. 5941 if (size == 0) { 5942 mState = DESTROYED; 5943 } 5944 5945 return size; 5946} 5947 5948sp<AudioFlinger::EffectHandle> AudioFlinger::EffectModule::controlHandle() 5949{ 5950 Mutex::Autolock _l(mLock); 5951 sp<EffectHandle> handle; 5952 if (mHandles.size() != 0) { 5953 handle = mHandles[0].promote(); 5954 } 5955 return handle; 5956} 5957 5958 5959 5960void AudioFlinger::EffectModule::disconnect(const wp<EffectHandle>& handle) 5961{ 5962 LOGV("disconnect() %p handle %p ", this, handle.unsafe_get()); 5963 // keep a strong reference on this EffectModule to avoid calling the 5964 // destructor before we exit 5965 sp<EffectModule> keep(this); 5966 { 5967 sp<ThreadBase> thread = mThread.promote(); 5968 if (thread != 0) { 5969 thread->disconnectEffect(keep, handle); 5970 } 5971 } 5972} 5973 5974void AudioFlinger::EffectModule::updateState() { 5975 Mutex::Autolock _l(mLock); 5976 5977 switch (mState) { 5978 case RESTART: 5979 reset_l(); 5980 // FALL THROUGH 5981 5982 case STARTING: 5983 // clear auxiliary effect input buffer for next accumulation 5984 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5985 memset(mConfig.inputCfg.buffer.raw, 5986 0, 5987 mConfig.inputCfg.buffer.frameCount*sizeof(int32_t)); 5988 } 5989 start_l(); 5990 mState = ACTIVE; 5991 break; 5992 case STOPPING: 5993 stop_l(); 5994 mDisableWaitCnt = mMaxDisableWaitCnt; 5995 mState = STOPPED; 5996 break; 5997 case STOPPED: 5998 // mDisableWaitCnt is forced to 1 by process() when the engine indicates the end of the 5999 // turn off sequence. 6000 if (--mDisableWaitCnt == 0) { 6001 reset_l(); 6002 mState = IDLE; 6003 } 6004 break; 6005 default: //IDLE , ACTIVE, DESTROYED 6006 break; 6007 } 6008} 6009 6010void AudioFlinger::EffectModule::process() 6011{ 6012 Mutex::Autolock _l(mLock); 6013 6014 if (mState == DESTROYED || mEffectInterface == NULL || 6015 mConfig.inputCfg.buffer.raw == NULL || 6016 mConfig.outputCfg.buffer.raw == NULL) { 6017 return; 6018 } 6019 6020 if (isProcessEnabled()) { 6021 // do 32 bit to 16 bit conversion for auxiliary effect input buffer 6022 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 6023 AudioMixer::ditherAndClamp(mConfig.inputCfg.buffer.s32, 6024 mConfig.inputCfg.buffer.s32, 6025 mConfig.inputCfg.buffer.frameCount/2); 6026 } 6027 6028 // do the actual processing in the effect engine 6029 int ret = (*mEffectInterface)->process(mEffectInterface, 6030 &mConfig.inputCfg.buffer, 6031 &mConfig.outputCfg.buffer); 6032 6033 // force transition to IDLE state when engine is ready 6034 if (mState == STOPPED && ret == -ENODATA) { 6035 mDisableWaitCnt = 1; 6036 } 6037 6038 // clear auxiliary effect input buffer for next accumulation 6039 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 6040 memset(mConfig.inputCfg.buffer.raw, 0, 6041 mConfig.inputCfg.buffer.frameCount*sizeof(int32_t)); 6042 } 6043 } else if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_INSERT && 6044 mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) { 6045 // If an insert effect is idle and input buffer is different from output buffer, 6046 // accumulate input onto output 6047 sp<EffectChain> chain = mChain.promote(); 6048 if (chain != 0 && chain->activeTrackCnt() != 0) { 6049 size_t frameCnt = mConfig.inputCfg.buffer.frameCount * 2; //always stereo here 6050 int16_t *in = mConfig.inputCfg.buffer.s16; 6051 int16_t *out = mConfig.outputCfg.buffer.s16; 6052 for (size_t i = 0; i < frameCnt; i++) { 6053 out[i] = clamp16((int32_t)out[i] + (int32_t)in[i]); 6054 } 6055 } 6056 } 6057} 6058 6059void AudioFlinger::EffectModule::reset_l() 6060{ 6061 if (mEffectInterface == NULL) { 6062 return; 6063 } 6064 (*mEffectInterface)->command(mEffectInterface, EFFECT_CMD_RESET, 0, NULL, 0, NULL); 6065} 6066 6067status_t AudioFlinger::EffectModule::configure() 6068{ 6069 uint32_t channels; 6070 if (mEffectInterface == NULL) { 6071 return NO_INIT; 6072 } 6073 6074 sp<ThreadBase> thread = mThread.promote(); 6075 if (thread == 0) { 6076 return DEAD_OBJECT; 6077 } 6078 6079 // TODO: handle configuration of effects replacing track process 6080 if (thread->channelCount() == 1) { 6081 channels = AUDIO_CHANNEL_OUT_MONO; 6082 } else { 6083 channels = AUDIO_CHANNEL_OUT_STEREO; 6084 } 6085 6086 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 6087 mConfig.inputCfg.channels = AUDIO_CHANNEL_OUT_MONO; 6088 } else { 6089 mConfig.inputCfg.channels = channels; 6090 } 6091 mConfig.outputCfg.channels = channels; 6092 mConfig.inputCfg.format = AUDIO_FORMAT_PCM_16_BIT; 6093 mConfig.outputCfg.format = AUDIO_FORMAT_PCM_16_BIT; 6094 mConfig.inputCfg.samplingRate = thread->sampleRate(); 6095 mConfig.outputCfg.samplingRate = mConfig.inputCfg.samplingRate; 6096 mConfig.inputCfg.bufferProvider.cookie = NULL; 6097 mConfig.inputCfg.bufferProvider.getBuffer = NULL; 6098 mConfig.inputCfg.bufferProvider.releaseBuffer = NULL; 6099 mConfig.outputCfg.bufferProvider.cookie = NULL; 6100 mConfig.outputCfg.bufferProvider.getBuffer = NULL; 6101 mConfig.outputCfg.bufferProvider.releaseBuffer = NULL; 6102 mConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ; 6103 // Insert effect: 6104 // - in session AUDIO_SESSION_OUTPUT_MIX or AUDIO_SESSION_OUTPUT_STAGE, 6105 // always overwrites output buffer: input buffer == output buffer 6106 // - in other sessions: 6107 // last effect in the chain accumulates in output buffer: input buffer != output buffer 6108 // other effect: overwrites output buffer: input buffer == output buffer 6109 // Auxiliary effect: 6110 // accumulates in output buffer: input buffer != output buffer 6111 // Therefore: accumulate <=> input buffer != output buffer 6112 if (mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) { 6113 mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_ACCUMULATE; 6114 } else { 6115 mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_WRITE; 6116 } 6117 mConfig.inputCfg.mask = EFFECT_CONFIG_ALL; 6118 mConfig.outputCfg.mask = EFFECT_CONFIG_ALL; 6119 mConfig.inputCfg.buffer.frameCount = thread->frameCount(); 6120 mConfig.outputCfg.buffer.frameCount = mConfig.inputCfg.buffer.frameCount; 6121 6122 LOGV("configure() %p thread %p buffer %p framecount %d", 6123 this, thread.get(), mConfig.inputCfg.buffer.raw, mConfig.inputCfg.buffer.frameCount); 6124 6125 status_t cmdStatus; 6126 uint32_t size = sizeof(int); 6127 status_t status = (*mEffectInterface)->command(mEffectInterface, 6128 EFFECT_CMD_CONFIGURE, 6129 sizeof(effect_config_t), 6130 &mConfig, 6131 &size, 6132 &cmdStatus); 6133 if (status == 0) { 6134 status = cmdStatus; 6135 } 6136 6137 mMaxDisableWaitCnt = (MAX_DISABLE_TIME_MS * mConfig.outputCfg.samplingRate) / 6138 (1000 * mConfig.outputCfg.buffer.frameCount); 6139 6140 return status; 6141} 6142 6143status_t AudioFlinger::EffectModule::init() 6144{ 6145 Mutex::Autolock _l(mLock); 6146 if (mEffectInterface == NULL) { 6147 return NO_INIT; 6148 } 6149 status_t cmdStatus; 6150 uint32_t size = sizeof(status_t); 6151 status_t status = (*mEffectInterface)->command(mEffectInterface, 6152 EFFECT_CMD_INIT, 6153 0, 6154 NULL, 6155 &size, 6156 &cmdStatus); 6157 if (status == 0) { 6158 status = cmdStatus; 6159 } 6160 return status; 6161} 6162 6163status_t AudioFlinger::EffectModule::start_l() 6164{ 6165 if (mEffectInterface == NULL) { 6166 return NO_INIT; 6167 } 6168 status_t cmdStatus; 6169 uint32_t size = sizeof(status_t); 6170 status_t status = (*mEffectInterface)->command(mEffectInterface, 6171 EFFECT_CMD_ENABLE, 6172 0, 6173 NULL, 6174 &size, 6175 &cmdStatus); 6176 if (status == 0) { 6177 status = cmdStatus; 6178 } 6179 if (status == 0 && 6180 ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 6181 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC)) { 6182 sp<ThreadBase> thread = mThread.promote(); 6183 if (thread != 0) { 6184 audio_stream_t *stream = thread->stream(); 6185 if (stream != NULL) { 6186 stream->add_audio_effect(stream, mEffectInterface); 6187 } 6188 } 6189 } 6190 return status; 6191} 6192 6193status_t AudioFlinger::EffectModule::stop() 6194{ 6195 Mutex::Autolock _l(mLock); 6196 return stop_l(); 6197} 6198 6199status_t AudioFlinger::EffectModule::stop_l() 6200{ 6201 if (mEffectInterface == NULL) { 6202 return NO_INIT; 6203 } 6204 status_t cmdStatus; 6205 uint32_t size = sizeof(status_t); 6206 status_t status = (*mEffectInterface)->command(mEffectInterface, 6207 EFFECT_CMD_DISABLE, 6208 0, 6209 NULL, 6210 &size, 6211 &cmdStatus); 6212 if (status == 0) { 6213 status = cmdStatus; 6214 } 6215 if (status == 0 && 6216 ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 6217 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC)) { 6218 sp<ThreadBase> thread = mThread.promote(); 6219 if (thread != 0) { 6220 audio_stream_t *stream = thread->stream(); 6221 if (stream != NULL) { 6222 stream->remove_audio_effect(stream, mEffectInterface); 6223 } 6224 } 6225 } 6226 return status; 6227} 6228 6229status_t AudioFlinger::EffectModule::command(uint32_t cmdCode, 6230 uint32_t cmdSize, 6231 void *pCmdData, 6232 uint32_t *replySize, 6233 void *pReplyData) 6234{ 6235 Mutex::Autolock _l(mLock); 6236// LOGV("command(), cmdCode: %d, mEffectInterface: %p", cmdCode, mEffectInterface); 6237 6238 if (mState == DESTROYED || mEffectInterface == NULL) { 6239 return NO_INIT; 6240 } 6241 status_t status = (*mEffectInterface)->command(mEffectInterface, 6242 cmdCode, 6243 cmdSize, 6244 pCmdData, 6245 replySize, 6246 pReplyData); 6247 if (cmdCode != EFFECT_CMD_GET_PARAM && status == NO_ERROR) { 6248 uint32_t size = (replySize == NULL) ? 0 : *replySize; 6249 for (size_t i = 1; i < mHandles.size(); i++) { 6250 sp<EffectHandle> h = mHandles[i].promote(); 6251 if (h != 0) { 6252 h->commandExecuted(cmdCode, cmdSize, pCmdData, size, pReplyData); 6253 } 6254 } 6255 } 6256 return status; 6257} 6258 6259status_t AudioFlinger::EffectModule::setEnabled(bool enabled) 6260{ 6261 Mutex::Autolock _l(mLock); 6262 LOGV("setEnabled %p enabled %d", this, enabled); 6263 6264 if (enabled != isEnabled()) { 6265 switch (mState) { 6266 // going from disabled to enabled 6267 case IDLE: 6268 mState = STARTING; 6269 break; 6270 case STOPPED: 6271 mState = RESTART; 6272 break; 6273 case STOPPING: 6274 mState = ACTIVE; 6275 break; 6276 6277 // going from enabled to disabled 6278 case RESTART: 6279 mState = STOPPED; 6280 break; 6281 case STARTING: 6282 mState = IDLE; 6283 break; 6284 case ACTIVE: 6285 mState = STOPPING; 6286 break; 6287 case DESTROYED: 6288 return NO_ERROR; // simply ignore as we are being destroyed 6289 } 6290 for (size_t i = 1; i < mHandles.size(); i++) { 6291 sp<EffectHandle> h = mHandles[i].promote(); 6292 if (h != 0) { 6293 h->setEnabled(enabled); 6294 } 6295 } 6296 } 6297 return NO_ERROR; 6298} 6299 6300bool AudioFlinger::EffectModule::isEnabled() 6301{ 6302 switch (mState) { 6303 case RESTART: 6304 case STARTING: 6305 case ACTIVE: 6306 return true; 6307 case IDLE: 6308 case STOPPING: 6309 case STOPPED: 6310 case DESTROYED: 6311 default: 6312 return false; 6313 } 6314} 6315 6316bool AudioFlinger::EffectModule::isProcessEnabled() 6317{ 6318 switch (mState) { 6319 case RESTART: 6320 case ACTIVE: 6321 case STOPPING: 6322 case STOPPED: 6323 return true; 6324 case IDLE: 6325 case STARTING: 6326 case DESTROYED: 6327 default: 6328 return false; 6329 } 6330} 6331 6332status_t AudioFlinger::EffectModule::setVolume(uint32_t *left, uint32_t *right, bool controller) 6333{ 6334 Mutex::Autolock _l(mLock); 6335 status_t status = NO_ERROR; 6336 6337 // Send volume indication if EFFECT_FLAG_VOLUME_IND is set and read back altered volume 6338 // if controller flag is set (Note that controller == TRUE => EFFECT_FLAG_VOLUME_CTRL set) 6339 if (isProcessEnabled() && 6340 ((mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL || 6341 (mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_IND)) { 6342 status_t cmdStatus; 6343 uint32_t volume[2]; 6344 uint32_t *pVolume = NULL; 6345 uint32_t size = sizeof(volume); 6346 volume[0] = *left; 6347 volume[1] = *right; 6348 if (controller) { 6349 pVolume = volume; 6350 } 6351 status = (*mEffectInterface)->command(mEffectInterface, 6352 EFFECT_CMD_SET_VOLUME, 6353 size, 6354 volume, 6355 &size, 6356 pVolume); 6357 if (controller && status == NO_ERROR && size == sizeof(volume)) { 6358 *left = volume[0]; 6359 *right = volume[1]; 6360 } 6361 } 6362 return status; 6363} 6364 6365status_t AudioFlinger::EffectModule::setDevice(uint32_t device) 6366{ 6367 Mutex::Autolock _l(mLock); 6368 status_t status = NO_ERROR; 6369 if (device && (mDescriptor.flags & EFFECT_FLAG_DEVICE_MASK) == EFFECT_FLAG_DEVICE_IND) { 6370 // audio pre processing modules on RecordThread can receive both output and 6371 // input device indication in the same call 6372 uint32_t dev = device & AUDIO_DEVICE_OUT_ALL; 6373 if (dev) { 6374 status_t cmdStatus; 6375 uint32_t size = sizeof(status_t); 6376 6377 status = (*mEffectInterface)->command(mEffectInterface, 6378 EFFECT_CMD_SET_DEVICE, 6379 sizeof(uint32_t), 6380 &dev, 6381 &size, 6382 &cmdStatus); 6383 if (status == NO_ERROR) { 6384 status = cmdStatus; 6385 } 6386 } 6387 dev = device & AUDIO_DEVICE_IN_ALL; 6388 if (dev) { 6389 status_t cmdStatus; 6390 uint32_t size = sizeof(status_t); 6391 6392 status_t status2 = (*mEffectInterface)->command(mEffectInterface, 6393 EFFECT_CMD_SET_INPUT_DEVICE, 6394 sizeof(uint32_t), 6395 &dev, 6396 &size, 6397 &cmdStatus); 6398 if (status2 == NO_ERROR) { 6399 status2 = cmdStatus; 6400 } 6401 if (status == NO_ERROR) { 6402 status = status2; 6403 } 6404 } 6405 } 6406 return status; 6407} 6408 6409status_t AudioFlinger::EffectModule::setMode(uint32_t mode) 6410{ 6411 Mutex::Autolock _l(mLock); 6412 status_t status = NO_ERROR; 6413 if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_MODE_MASK) == EFFECT_FLAG_AUDIO_MODE_IND) { 6414 status_t cmdStatus; 6415 uint32_t size = sizeof(status_t); 6416 status = (*mEffectInterface)->command(mEffectInterface, 6417 EFFECT_CMD_SET_AUDIO_MODE, 6418 sizeof(int), 6419 &mode, 6420 &size, 6421 &cmdStatus); 6422 if (status == NO_ERROR) { 6423 status = cmdStatus; 6424 } 6425 } 6426 return status; 6427} 6428 6429void AudioFlinger::EffectModule::setSuspended(bool suspended) 6430{ 6431 Mutex::Autolock _l(mLock); 6432 mSuspended = suspended; 6433} 6434bool AudioFlinger::EffectModule::suspended() 6435{ 6436 Mutex::Autolock _l(mLock); 6437 return mSuspended; 6438} 6439 6440status_t AudioFlinger::EffectModule::dump(int fd, const Vector<String16>& args) 6441{ 6442 const size_t SIZE = 256; 6443 char buffer[SIZE]; 6444 String8 result; 6445 6446 snprintf(buffer, SIZE, "\tEffect ID %d:\n", mId); 6447 result.append(buffer); 6448 6449 bool locked = tryLock(mLock); 6450 // failed to lock - AudioFlinger is probably deadlocked 6451 if (!locked) { 6452 result.append("\t\tCould not lock Fx mutex:\n"); 6453 } 6454 6455 result.append("\t\tSession Status State Engine:\n"); 6456 snprintf(buffer, SIZE, "\t\t%05d %03d %03d 0x%08x\n", 6457 mSessionId, mStatus, mState, (uint32_t)mEffectInterface); 6458 result.append(buffer); 6459 6460 result.append("\t\tDescriptor:\n"); 6461 snprintf(buffer, SIZE, "\t\t- UUID: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n", 6462 mDescriptor.uuid.timeLow, mDescriptor.uuid.timeMid, mDescriptor.uuid.timeHiAndVersion, 6463 mDescriptor.uuid.clockSeq, mDescriptor.uuid.node[0], mDescriptor.uuid.node[1],mDescriptor.uuid.node[2], 6464 mDescriptor.uuid.node[3],mDescriptor.uuid.node[4],mDescriptor.uuid.node[5]); 6465 result.append(buffer); 6466 snprintf(buffer, SIZE, "\t\t- TYPE: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n", 6467 mDescriptor.type.timeLow, mDescriptor.type.timeMid, mDescriptor.type.timeHiAndVersion, 6468 mDescriptor.type.clockSeq, mDescriptor.type.node[0], mDescriptor.type.node[1],mDescriptor.type.node[2], 6469 mDescriptor.type.node[3],mDescriptor.type.node[4],mDescriptor.type.node[5]); 6470 result.append(buffer); 6471 snprintf(buffer, SIZE, "\t\t- apiVersion: %08X\n\t\t- flags: %08X\n", 6472 mDescriptor.apiVersion, 6473 mDescriptor.flags); 6474 result.append(buffer); 6475 snprintf(buffer, SIZE, "\t\t- name: %s\n", 6476 mDescriptor.name); 6477 result.append(buffer); 6478 snprintf(buffer, SIZE, "\t\t- implementor: %s\n", 6479 mDescriptor.implementor); 6480 result.append(buffer); 6481 6482 result.append("\t\t- Input configuration:\n"); 6483 result.append("\t\t\tBuffer Frames Smp rate Channels Format\n"); 6484 snprintf(buffer, SIZE, "\t\t\t0x%08x %05d %05d %08x %d\n", 6485 (uint32_t)mConfig.inputCfg.buffer.raw, 6486 mConfig.inputCfg.buffer.frameCount, 6487 mConfig.inputCfg.samplingRate, 6488 mConfig.inputCfg.channels, 6489 mConfig.inputCfg.format); 6490 result.append(buffer); 6491 6492 result.append("\t\t- Output configuration:\n"); 6493 result.append("\t\t\tBuffer Frames Smp rate Channels Format\n"); 6494 snprintf(buffer, SIZE, "\t\t\t0x%08x %05d %05d %08x %d\n", 6495 (uint32_t)mConfig.outputCfg.buffer.raw, 6496 mConfig.outputCfg.buffer.frameCount, 6497 mConfig.outputCfg.samplingRate, 6498 mConfig.outputCfg.channels, 6499 mConfig.outputCfg.format); 6500 result.append(buffer); 6501 6502 snprintf(buffer, SIZE, "\t\t%d Clients:\n", mHandles.size()); 6503 result.append(buffer); 6504 result.append("\t\t\tPid Priority Ctrl Locked client server\n"); 6505 for (size_t i = 0; i < mHandles.size(); ++i) { 6506 sp<EffectHandle> handle = mHandles[i].promote(); 6507 if (handle != 0) { 6508 handle->dump(buffer, SIZE); 6509 result.append(buffer); 6510 } 6511 } 6512 6513 result.append("\n"); 6514 6515 write(fd, result.string(), result.length()); 6516 6517 if (locked) { 6518 mLock.unlock(); 6519 } 6520 6521 return NO_ERROR; 6522} 6523 6524// ---------------------------------------------------------------------------- 6525// EffectHandle implementation 6526// ---------------------------------------------------------------------------- 6527 6528#undef LOG_TAG 6529#define LOG_TAG "AudioFlinger::EffectHandle" 6530 6531AudioFlinger::EffectHandle::EffectHandle(const sp<EffectModule>& effect, 6532 const sp<AudioFlinger::Client>& client, 6533 const sp<IEffectClient>& effectClient, 6534 int32_t priority) 6535 : BnEffect(), 6536 mEffect(effect), mEffectClient(effectClient), mClient(client), 6537 mPriority(priority), mHasControl(false), mEnabled(false) 6538{ 6539 LOGV("constructor %p", this); 6540 6541 int bufOffset = ((sizeof(effect_param_cblk_t) - 1) / sizeof(int) + 1) * sizeof(int); 6542 mCblkMemory = client->heap()->allocate(EFFECT_PARAM_BUFFER_SIZE + bufOffset); 6543 if (mCblkMemory != 0) { 6544 mCblk = static_cast<effect_param_cblk_t *>(mCblkMemory->pointer()); 6545 6546 if (mCblk) { 6547 new(mCblk) effect_param_cblk_t(); 6548 mBuffer = (uint8_t *)mCblk + bufOffset; 6549 } 6550 } else { 6551 LOGE("not enough memory for Effect size=%u", EFFECT_PARAM_BUFFER_SIZE + sizeof(effect_param_cblk_t)); 6552 return; 6553 } 6554} 6555 6556AudioFlinger::EffectHandle::~EffectHandle() 6557{ 6558 LOGV("Destructor %p", this); 6559 disconnect(); 6560 LOGV("Destructor DONE %p", this); 6561} 6562 6563status_t AudioFlinger::EffectHandle::enable() 6564{ 6565 LOGV("enable %p", this); 6566 if (!mHasControl) return INVALID_OPERATION; 6567 if (mEffect == 0) return DEAD_OBJECT; 6568 6569 mEnabled = true; 6570 6571 sp<ThreadBase> thread = mEffect->thread().promote(); 6572 if (thread != 0) { 6573 thread->checkSuspendOnEffectEnabled(mEffect, true, mEffect->sessionId()); 6574 } 6575 6576 // checkSuspendOnEffectEnabled() can suspend this same effect when enabled 6577 if (mEffect->suspended()) { 6578 return NO_ERROR; 6579 } 6580 6581 return mEffect->setEnabled(true); 6582} 6583 6584status_t AudioFlinger::EffectHandle::disable() 6585{ 6586 LOGV("disable %p", this); 6587 if (!mHasControl) return INVALID_OPERATION; 6588 if (mEffect == 0) return DEAD_OBJECT; 6589 6590 mEnabled = false; 6591 6592 if (mEffect->suspended()) { 6593 return NO_ERROR; 6594 } 6595 6596 status_t status = mEffect->setEnabled(false); 6597 6598 sp<ThreadBase> thread = mEffect->thread().promote(); 6599 if (thread != 0) { 6600 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 6601 } 6602 6603 return status; 6604} 6605 6606void AudioFlinger::EffectHandle::disconnect() 6607{ 6608 LOGV("disconnect %p", this); 6609 if (mEffect == 0) { 6610 return; 6611 } 6612 6613 mEffect->disconnect(this); 6614 6615 sp<ThreadBase> thread = mEffect->thread().promote(); 6616 if (thread != 0) { 6617 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 6618 } 6619 6620 // release sp on module => module destructor can be called now 6621 mEffect.clear(); 6622 if (mCblk) { 6623 mCblk->~effect_param_cblk_t(); // destroy our shared-structure. 6624 } 6625 mCblkMemory.clear(); // and free the shared memory 6626 if (mClient != 0) { 6627 Mutex::Autolock _l(mClient->audioFlinger()->mLock); 6628 mClient.clear(); 6629 } 6630} 6631 6632status_t AudioFlinger::EffectHandle::command(uint32_t cmdCode, 6633 uint32_t cmdSize, 6634 void *pCmdData, 6635 uint32_t *replySize, 6636 void *pReplyData) 6637{ 6638// LOGV("command(), cmdCode: %d, mHasControl: %d, mEffect: %p", 6639// cmdCode, mHasControl, (mEffect == 0) ? 0 : mEffect.get()); 6640 6641 // only get parameter command is permitted for applications not controlling the effect 6642 if (!mHasControl && cmdCode != EFFECT_CMD_GET_PARAM) { 6643 return INVALID_OPERATION; 6644 } 6645 if (mEffect == 0) return DEAD_OBJECT; 6646 6647 // handle commands that are not forwarded transparently to effect engine 6648 if (cmdCode == EFFECT_CMD_SET_PARAM_COMMIT) { 6649 // No need to trylock() here as this function is executed in the binder thread serving a particular client process: 6650 // no risk to block the whole media server process or mixer threads is we are stuck here 6651 Mutex::Autolock _l(mCblk->lock); 6652 if (mCblk->clientIndex > EFFECT_PARAM_BUFFER_SIZE || 6653 mCblk->serverIndex > EFFECT_PARAM_BUFFER_SIZE) { 6654 mCblk->serverIndex = 0; 6655 mCblk->clientIndex = 0; 6656 return BAD_VALUE; 6657 } 6658 status_t status = NO_ERROR; 6659 while (mCblk->serverIndex < mCblk->clientIndex) { 6660 int reply; 6661 uint32_t rsize = sizeof(int); 6662 int *p = (int *)(mBuffer + mCblk->serverIndex); 6663 int size = *p++; 6664 if (((uint8_t *)p + size) > mBuffer + mCblk->clientIndex) { 6665 LOGW("command(): invalid parameter block size"); 6666 break; 6667 } 6668 effect_param_t *param = (effect_param_t *)p; 6669 if (param->psize == 0 || param->vsize == 0) { 6670 LOGW("command(): null parameter or value size"); 6671 mCblk->serverIndex += size; 6672 continue; 6673 } 6674 uint32_t psize = sizeof(effect_param_t) + 6675 ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) + 6676 param->vsize; 6677 status_t ret = mEffect->command(EFFECT_CMD_SET_PARAM, 6678 psize, 6679 p, 6680 &rsize, 6681 &reply); 6682 // stop at first error encountered 6683 if (ret != NO_ERROR) { 6684 status = ret; 6685 *(int *)pReplyData = reply; 6686 break; 6687 } else if (reply != NO_ERROR) { 6688 *(int *)pReplyData = reply; 6689 break; 6690 } 6691 mCblk->serverIndex += size; 6692 } 6693 mCblk->serverIndex = 0; 6694 mCblk->clientIndex = 0; 6695 return status; 6696 } else if (cmdCode == EFFECT_CMD_ENABLE) { 6697 *(int *)pReplyData = NO_ERROR; 6698 return enable(); 6699 } else if (cmdCode == EFFECT_CMD_DISABLE) { 6700 *(int *)pReplyData = NO_ERROR; 6701 return disable(); 6702 } 6703 6704 return mEffect->command(cmdCode, cmdSize, pCmdData, replySize, pReplyData); 6705} 6706 6707sp<IMemory> AudioFlinger::EffectHandle::getCblk() const { 6708 return mCblkMemory; 6709} 6710 6711void AudioFlinger::EffectHandle::setControl(bool hasControl, bool signal, bool enabled) 6712{ 6713 LOGV("setControl %p control %d", this, hasControl); 6714 6715 mHasControl = hasControl; 6716 mEnabled = enabled; 6717 6718 if (signal && mEffectClient != 0) { 6719 mEffectClient->controlStatusChanged(hasControl); 6720 } 6721} 6722 6723void AudioFlinger::EffectHandle::commandExecuted(uint32_t cmdCode, 6724 uint32_t cmdSize, 6725 void *pCmdData, 6726 uint32_t replySize, 6727 void *pReplyData) 6728{ 6729 if (mEffectClient != 0) { 6730 mEffectClient->commandExecuted(cmdCode, cmdSize, pCmdData, replySize, pReplyData); 6731 } 6732} 6733 6734 6735 6736void AudioFlinger::EffectHandle::setEnabled(bool enabled) 6737{ 6738 if (mEffectClient != 0) { 6739 mEffectClient->enableStatusChanged(enabled); 6740 } 6741} 6742 6743status_t AudioFlinger::EffectHandle::onTransact( 6744 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 6745{ 6746 return BnEffect::onTransact(code, data, reply, flags); 6747} 6748 6749 6750void AudioFlinger::EffectHandle::dump(char* buffer, size_t size) 6751{ 6752 bool locked = tryLock(mCblk->lock); 6753 6754 snprintf(buffer, size, "\t\t\t%05d %05d %01u %01u %05u %05u\n", 6755 (mClient == NULL) ? getpid() : mClient->pid(), 6756 mPriority, 6757 mHasControl, 6758 !locked, 6759 mCblk->clientIndex, 6760 mCblk->serverIndex 6761 ); 6762 6763 if (locked) { 6764 mCblk->lock.unlock(); 6765 } 6766} 6767 6768#undef LOG_TAG 6769#define LOG_TAG "AudioFlinger::EffectChain" 6770 6771AudioFlinger::EffectChain::EffectChain(const wp<ThreadBase>& wThread, 6772 int sessionId) 6773 : mThread(wThread), mSessionId(sessionId), mActiveTrackCnt(0), mTrackCnt(0), 6774 mOwnInBuffer(false), mVolumeCtrlIdx(-1), mLeftVolume(UINT_MAX), mRightVolume(UINT_MAX), 6775 mNewLeftVolume(UINT_MAX), mNewRightVolume(UINT_MAX) 6776{ 6777 mStrategy = AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC); 6778} 6779 6780AudioFlinger::EffectChain::~EffectChain() 6781{ 6782 if (mOwnInBuffer) { 6783 delete mInBuffer; 6784 } 6785 6786} 6787 6788// getEffectFromDesc_l() must be called with ThreadBase::mLock held 6789sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromDesc_l(effect_descriptor_t *descriptor) 6790{ 6791 sp<EffectModule> effect; 6792 size_t size = mEffects.size(); 6793 6794 for (size_t i = 0; i < size; i++) { 6795 if (memcmp(&mEffects[i]->desc().uuid, &descriptor->uuid, sizeof(effect_uuid_t)) == 0) { 6796 effect = mEffects[i]; 6797 break; 6798 } 6799 } 6800 return effect; 6801} 6802 6803// getEffectFromId_l() must be called with ThreadBase::mLock held 6804sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromId_l(int id) 6805{ 6806 sp<EffectModule> effect; 6807 size_t size = mEffects.size(); 6808 6809 for (size_t i = 0; i < size; i++) { 6810 // by convention, return first effect if id provided is 0 (0 is never a valid id) 6811 if (id == 0 || mEffects[i]->id() == id) { 6812 effect = mEffects[i]; 6813 break; 6814 } 6815 } 6816 return effect; 6817} 6818 6819// getEffectFromType_l() must be called with ThreadBase::mLock held 6820sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromType_l( 6821 const effect_uuid_t *type) 6822{ 6823 sp<EffectModule> effect; 6824 size_t size = mEffects.size(); 6825 6826 for (size_t i = 0; i < size; i++) { 6827 if (memcmp(&mEffects[i]->desc().type, type, sizeof(effect_uuid_t)) == 0) { 6828 effect = mEffects[i]; 6829 break; 6830 } 6831 } 6832 return effect; 6833} 6834 6835// Must be called with EffectChain::mLock locked 6836void AudioFlinger::EffectChain::process_l() 6837{ 6838 sp<ThreadBase> thread = mThread.promote(); 6839 if (thread == 0) { 6840 LOGW("process_l(): cannot promote mixer thread"); 6841 return; 6842 } 6843 bool isGlobalSession = (mSessionId == AUDIO_SESSION_OUTPUT_MIX) || 6844 (mSessionId == AUDIO_SESSION_OUTPUT_STAGE); 6845 bool tracksOnSession = false; 6846 if (!isGlobalSession) { 6847 tracksOnSession = (trackCnt() != 0); 6848 } 6849 6850 // if no track is active, input buffer must be cleared here as the mixer process 6851 // will not do it 6852 if (tracksOnSession && 6853 activeTrackCnt() == 0) { 6854 size_t numSamples = thread->frameCount() * thread->channelCount(); 6855 memset(mInBuffer, 0, numSamples * sizeof(int16_t)); 6856 } 6857 6858 size_t size = mEffects.size(); 6859 // do not process effect if no track is present in same audio session 6860 if (isGlobalSession || tracksOnSession) { 6861 for (size_t i = 0; i < size; i++) { 6862 mEffects[i]->process(); 6863 } 6864 } 6865 for (size_t i = 0; i < size; i++) { 6866 mEffects[i]->updateState(); 6867 } 6868} 6869 6870// addEffect_l() must be called with PlaybackThread::mLock held 6871status_t AudioFlinger::EffectChain::addEffect_l(const sp<EffectModule>& effect) 6872{ 6873 effect_descriptor_t desc = effect->desc(); 6874 uint32_t insertPref = desc.flags & EFFECT_FLAG_INSERT_MASK; 6875 6876 Mutex::Autolock _l(mLock); 6877 effect->setChain(this); 6878 sp<ThreadBase> thread = mThread.promote(); 6879 if (thread == 0) { 6880 return NO_INIT; 6881 } 6882 effect->setThread(thread); 6883 6884 if ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 6885 // Auxiliary effects are inserted at the beginning of mEffects vector as 6886 // they are processed first and accumulated in chain input buffer 6887 mEffects.insertAt(effect, 0); 6888 6889 // the input buffer for auxiliary effect contains mono samples in 6890 // 32 bit format. This is to avoid saturation in AudoMixer 6891 // accumulation stage. Saturation is done in EffectModule::process() before 6892 // calling the process in effect engine 6893 size_t numSamples = thread->frameCount(); 6894 int32_t *buffer = new int32_t[numSamples]; 6895 memset(buffer, 0, numSamples * sizeof(int32_t)); 6896 effect->setInBuffer((int16_t *)buffer); 6897 // auxiliary effects output samples to chain input buffer for further processing 6898 // by insert effects 6899 effect->setOutBuffer(mInBuffer); 6900 } else { 6901 // Insert effects are inserted at the end of mEffects vector as they are processed 6902 // after track and auxiliary effects. 6903 // Insert effect order as a function of indicated preference: 6904 // if EFFECT_FLAG_INSERT_EXCLUSIVE, insert in first position or reject if 6905 // another effect is present 6906 // else if EFFECT_FLAG_INSERT_FIRST, insert in first position or after the 6907 // last effect claiming first position 6908 // else if EFFECT_FLAG_INSERT_LAST, insert in last position or before the 6909 // first effect claiming last position 6910 // else if EFFECT_FLAG_INSERT_ANY insert after first or before last 6911 // Reject insertion if an effect with EFFECT_FLAG_INSERT_EXCLUSIVE is 6912 // already present 6913 6914 int size = (int)mEffects.size(); 6915 int idx_insert = size; 6916 int idx_insert_first = -1; 6917 int idx_insert_last = -1; 6918 6919 for (int i = 0; i < size; i++) { 6920 effect_descriptor_t d = mEffects[i]->desc(); 6921 uint32_t iMode = d.flags & EFFECT_FLAG_TYPE_MASK; 6922 uint32_t iPref = d.flags & EFFECT_FLAG_INSERT_MASK; 6923 if (iMode == EFFECT_FLAG_TYPE_INSERT) { 6924 // check invalid effect chaining combinations 6925 if (insertPref == EFFECT_FLAG_INSERT_EXCLUSIVE || 6926 iPref == EFFECT_FLAG_INSERT_EXCLUSIVE) { 6927 LOGW("addEffect_l() could not insert effect %s: exclusive conflict with %s", desc.name, d.name); 6928 return INVALID_OPERATION; 6929 } 6930 // remember position of first insert effect and by default 6931 // select this as insert position for new effect 6932 if (idx_insert == size) { 6933 idx_insert = i; 6934 } 6935 // remember position of last insert effect claiming 6936 // first position 6937 if (iPref == EFFECT_FLAG_INSERT_FIRST) { 6938 idx_insert_first = i; 6939 } 6940 // remember position of first insert effect claiming 6941 // last position 6942 if (iPref == EFFECT_FLAG_INSERT_LAST && 6943 idx_insert_last == -1) { 6944 idx_insert_last = i; 6945 } 6946 } 6947 } 6948 6949 // modify idx_insert from first position if needed 6950 if (insertPref == EFFECT_FLAG_INSERT_LAST) { 6951 if (idx_insert_last != -1) { 6952 idx_insert = idx_insert_last; 6953 } else { 6954 idx_insert = size; 6955 } 6956 } else { 6957 if (idx_insert_first != -1) { 6958 idx_insert = idx_insert_first + 1; 6959 } 6960 } 6961 6962 // always read samples from chain input buffer 6963 effect->setInBuffer(mInBuffer); 6964 6965 // if last effect in the chain, output samples to chain 6966 // output buffer, otherwise to chain input buffer 6967 if (idx_insert == size) { 6968 if (idx_insert != 0) { 6969 mEffects[idx_insert-1]->setOutBuffer(mInBuffer); 6970 mEffects[idx_insert-1]->configure(); 6971 } 6972 effect->setOutBuffer(mOutBuffer); 6973 } else { 6974 effect->setOutBuffer(mInBuffer); 6975 } 6976 mEffects.insertAt(effect, idx_insert); 6977 6978 LOGV("addEffect_l() effect %p, added in chain %p at rank %d", effect.get(), this, idx_insert); 6979 } 6980 effect->configure(); 6981 return NO_ERROR; 6982} 6983 6984// removeEffect_l() must be called with PlaybackThread::mLock held 6985size_t AudioFlinger::EffectChain::removeEffect_l(const sp<EffectModule>& effect) 6986{ 6987 Mutex::Autolock _l(mLock); 6988 int size = (int)mEffects.size(); 6989 int i; 6990 uint32_t type = effect->desc().flags & EFFECT_FLAG_TYPE_MASK; 6991 6992 for (i = 0; i < size; i++) { 6993 if (effect == mEffects[i]) { 6994 // calling stop here will remove pre-processing effect from the audio HAL. 6995 // This is safe as we hold the EffectChain mutex which guarantees that we are not in 6996 // the middle of a read from audio HAL 6997 mEffects[i]->stop(); 6998 if (type == EFFECT_FLAG_TYPE_AUXILIARY) { 6999 delete[] effect->inBuffer(); 7000 } else { 7001 if (i == size - 1 && i != 0) { 7002 mEffects[i - 1]->setOutBuffer(mOutBuffer); 7003 mEffects[i - 1]->configure(); 7004 } 7005 } 7006 mEffects.removeAt(i); 7007 LOGV("removeEffect_l() effect %p, removed from chain %p at rank %d", effect.get(), this, i); 7008 break; 7009 } 7010 } 7011 7012 return mEffects.size(); 7013} 7014 7015// setDevice_l() must be called with PlaybackThread::mLock held 7016void AudioFlinger::EffectChain::setDevice_l(uint32_t device) 7017{ 7018 size_t size = mEffects.size(); 7019 for (size_t i = 0; i < size; i++) { 7020 mEffects[i]->setDevice(device); 7021 } 7022} 7023 7024// setMode_l() must be called with PlaybackThread::mLock held 7025void AudioFlinger::EffectChain::setMode_l(uint32_t mode) 7026{ 7027 size_t size = mEffects.size(); 7028 for (size_t i = 0; i < size; i++) { 7029 mEffects[i]->setMode(mode); 7030 } 7031} 7032 7033// setVolume_l() must be called with PlaybackThread::mLock held 7034bool AudioFlinger::EffectChain::setVolume_l(uint32_t *left, uint32_t *right) 7035{ 7036 uint32_t newLeft = *left; 7037 uint32_t newRight = *right; 7038 bool hasControl = false; 7039 int ctrlIdx = -1; 7040 size_t size = mEffects.size(); 7041 7042 // first update volume controller 7043 for (size_t i = size; i > 0; i--) { 7044 if (mEffects[i - 1]->isProcessEnabled() && 7045 (mEffects[i - 1]->desc().flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL) { 7046 ctrlIdx = i - 1; 7047 hasControl = true; 7048 break; 7049 } 7050 } 7051 7052 if (ctrlIdx == mVolumeCtrlIdx && *left == mLeftVolume && *right == mRightVolume) { 7053 if (hasControl) { 7054 *left = mNewLeftVolume; 7055 *right = mNewRightVolume; 7056 } 7057 return hasControl; 7058 } 7059 7060 mVolumeCtrlIdx = ctrlIdx; 7061 mLeftVolume = newLeft; 7062 mRightVolume = newRight; 7063 7064 // second get volume update from volume controller 7065 if (ctrlIdx >= 0) { 7066 mEffects[ctrlIdx]->setVolume(&newLeft, &newRight, true); 7067 mNewLeftVolume = newLeft; 7068 mNewRightVolume = newRight; 7069 } 7070 // then indicate volume to all other effects in chain. 7071 // Pass altered volume to effects before volume controller 7072 // and requested volume to effects after controller 7073 uint32_t lVol = newLeft; 7074 uint32_t rVol = newRight; 7075 7076 for (size_t i = 0; i < size; i++) { 7077 if ((int)i == ctrlIdx) continue; 7078 // this also works for ctrlIdx == -1 when there is no volume controller 7079 if ((int)i > ctrlIdx) { 7080 lVol = *left; 7081 rVol = *right; 7082 } 7083 mEffects[i]->setVolume(&lVol, &rVol, false); 7084 } 7085 *left = newLeft; 7086 *right = newRight; 7087 7088 return hasControl; 7089} 7090 7091status_t AudioFlinger::EffectChain::dump(int fd, const Vector<String16>& args) 7092{ 7093 const size_t SIZE = 256; 7094 char buffer[SIZE]; 7095 String8 result; 7096 7097 snprintf(buffer, SIZE, "Effects for session %d:\n", mSessionId); 7098 result.append(buffer); 7099 7100 bool locked = tryLock(mLock); 7101 // failed to lock - AudioFlinger is probably deadlocked 7102 if (!locked) { 7103 result.append("\tCould not lock mutex:\n"); 7104 } 7105 7106 result.append("\tNum fx In buffer Out buffer Active tracks:\n"); 7107 snprintf(buffer, SIZE, "\t%02d 0x%08x 0x%08x %d\n", 7108 mEffects.size(), 7109 (uint32_t)mInBuffer, 7110 (uint32_t)mOutBuffer, 7111 mActiveTrackCnt); 7112 result.append(buffer); 7113 write(fd, result.string(), result.size()); 7114 7115 for (size_t i = 0; i < mEffects.size(); ++i) { 7116 sp<EffectModule> effect = mEffects[i]; 7117 if (effect != 0) { 7118 effect->dump(fd, args); 7119 } 7120 } 7121 7122 if (locked) { 7123 mLock.unlock(); 7124 } 7125 7126 return NO_ERROR; 7127} 7128 7129// must be called with ThreadBase::mLock held 7130void AudioFlinger::EffectChain::setEffectSuspended_l( 7131 const effect_uuid_t *type, bool suspend) 7132{ 7133 sp<SuspendedEffectDesc> desc; 7134 // use effect type UUID timelow as key as there is no real risk of identical 7135 // timeLow fields among effect type UUIDs. 7136 int index = mSuspendedEffects.indexOfKey(type->timeLow); 7137 if (suspend) { 7138 if (index >= 0) { 7139 desc = mSuspendedEffects.valueAt(index); 7140 } else { 7141 desc = new SuspendedEffectDesc(); 7142 memcpy(&desc->mType, type, sizeof(effect_uuid_t)); 7143 mSuspendedEffects.add(type->timeLow, desc); 7144 LOGV("setEffectSuspended_l() add entry for %08x", type->timeLow); 7145 } 7146 if (desc->mRefCount++ == 0) { 7147 sp<EffectModule> effect = getEffectIfEnabled(type); 7148 if (effect != 0) { 7149 desc->mEffect = effect; 7150 effect->setSuspended(true); 7151 effect->setEnabled(false); 7152 } 7153 } 7154 } else { 7155 if (index < 0) { 7156 return; 7157 } 7158 desc = mSuspendedEffects.valueAt(index); 7159 if (desc->mRefCount <= 0) { 7160 LOGW("setEffectSuspended_l() restore refcount should not be 0 %d", desc->mRefCount); 7161 desc->mRefCount = 1; 7162 } 7163 if (--desc->mRefCount == 0) { 7164 LOGV("setEffectSuspended_l() remove entry for %08x", mSuspendedEffects.keyAt(index)); 7165 if (desc->mEffect != 0) { 7166 sp<EffectModule> effect = desc->mEffect.promote(); 7167 if (effect != 0) { 7168 effect->setSuspended(false); 7169 sp<EffectHandle> handle = effect->controlHandle(); 7170 if (handle != 0) { 7171 effect->setEnabled(handle->enabled()); 7172 } 7173 } 7174 desc->mEffect.clear(); 7175 } 7176 mSuspendedEffects.removeItemsAt(index); 7177 } 7178 } 7179} 7180 7181// must be called with ThreadBase::mLock held 7182void AudioFlinger::EffectChain::setEffectSuspendedAll_l(bool suspend) 7183{ 7184 sp<SuspendedEffectDesc> desc; 7185 7186 int index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll); 7187 if (suspend) { 7188 if (index >= 0) { 7189 desc = mSuspendedEffects.valueAt(index); 7190 } else { 7191 desc = new SuspendedEffectDesc(); 7192 mSuspendedEffects.add((int)kKeyForSuspendAll, desc); 7193 LOGV("setEffectSuspendedAll_l() add entry for 0"); 7194 } 7195 if (desc->mRefCount++ == 0) { 7196 Vector< sp<EffectModule> > effects = getSuspendEligibleEffects(); 7197 for (size_t i = 0; i < effects.size(); i++) { 7198 setEffectSuspended_l(&effects[i]->desc().type, true); 7199 } 7200 } 7201 } else { 7202 if (index < 0) { 7203 return; 7204 } 7205 desc = mSuspendedEffects.valueAt(index); 7206 if (desc->mRefCount <= 0) { 7207 LOGW("setEffectSuspendedAll_l() restore refcount should not be 0 %d", desc->mRefCount); 7208 desc->mRefCount = 1; 7209 } 7210 if (--desc->mRefCount == 0) { 7211 Vector<const effect_uuid_t *> types; 7212 for (size_t i = 0; i < mSuspendedEffects.size(); i++) { 7213 if (mSuspendedEffects.keyAt(i) == (int)kKeyForSuspendAll) { 7214 continue; 7215 } 7216 types.add(&mSuspendedEffects.valueAt(i)->mType); 7217 } 7218 for (size_t i = 0; i < types.size(); i++) { 7219 setEffectSuspended_l(types[i], false); 7220 } 7221 LOGV("setEffectSuspendedAll_l() remove entry for %08x", mSuspendedEffects.keyAt(index)); 7222 mSuspendedEffects.removeItem((int)kKeyForSuspendAll); 7223 } 7224 } 7225} 7226 7227Vector< sp<AudioFlinger::EffectModule> > AudioFlinger::EffectChain::getSuspendEligibleEffects() 7228{ 7229 Vector< sp<EffectModule> > effects; 7230 for (size_t i = 0; i < mEffects.size(); i++) { 7231 effect_descriptor_t desc = mEffects[i]->desc(); 7232 // auxiliary effects and vizualizer are never suspended on output mix 7233 if ((mSessionId == AUDIO_SESSION_OUTPUT_MIX) && ( 7234 ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) || 7235 (memcmp(&desc.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0))) { 7236 continue; 7237 } 7238 effects.add(mEffects[i]); 7239 } 7240 return effects; 7241} 7242 7243sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectIfEnabled( 7244 const effect_uuid_t *type) 7245{ 7246 sp<EffectModule> effect; 7247 effect = getEffectFromType_l(type); 7248 if (effect != 0 && !effect->isEnabled()) { 7249 effect.clear(); 7250 } 7251 return effect; 7252} 7253 7254void AudioFlinger::EffectChain::checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, 7255 bool enabled) 7256{ 7257 int index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow); 7258 if (enabled) { 7259 if (index < 0) { 7260 // if the effect is not suspend check if all effects are suspended 7261 index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll); 7262 if (index < 0) { 7263 return; 7264 } 7265 setEffectSuspended_l(&effect->desc().type, enabled); 7266 index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow); 7267 } 7268 LOGV("checkSuspendOnEffectEnabled() enable suspending fx %08x", 7269 effect->desc().type.timeLow); 7270 sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index); 7271 // if effect is requested to suspended but was not yet enabled, supend it now. 7272 if (desc->mEffect == 0) { 7273 desc->mEffect = effect; 7274 effect->setEnabled(false); 7275 effect->setSuspended(true); 7276 } 7277 } else { 7278 if (index < 0) { 7279 return; 7280 } 7281 LOGV("checkSuspendOnEffectEnabled() disable restoring fx %08x", 7282 effect->desc().type.timeLow); 7283 sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index); 7284 desc->mEffect.clear(); 7285 effect->setSuspended(false); 7286 } 7287} 7288 7289#undef LOG_TAG 7290#define LOG_TAG "AudioFlinger" 7291 7292// ---------------------------------------------------------------------------- 7293 7294status_t AudioFlinger::onTransact( 7295 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 7296{ 7297 return BnAudioFlinger::onTransact(code, data, reply, flags); 7298} 7299 7300}; // namespace android 7301