AudioFlinger.cpp revision 91eb8bfbe253a6b6fe1aa23fb884a601c28991c4
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 90static const nsecs_t kSetParametersTimeout = seconds(2); 91 92// minimum sleep time for the mixer thread loop when tracks are active but in underrun 93static const uint32_t kMinThreadSleepTimeUs = 5000; 94// maximum divider applied to the active sleep time in the mixer thread loop 95static const uint32_t kMaxThreadSleepTimeShift = 2; 96 97 98// ---------------------------------------------------------------------------- 99 100static bool recordingAllowed() { 101 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 102 bool ok = checkCallingPermission(String16("android.permission.RECORD_AUDIO")); 103 if (!ok) LOGE("Request requires android.permission.RECORD_AUDIO"); 104 return ok; 105} 106 107static bool settingsAllowed() { 108 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 109 bool ok = checkCallingPermission(String16("android.permission.MODIFY_AUDIO_SETTINGS")); 110 if (!ok) LOGE("Request requires android.permission.MODIFY_AUDIO_SETTINGS"); 111 return ok; 112} 113 114// To collect the amplifier usage 115static void addBatteryData(uint32_t params) { 116 sp<IBinder> binder = 117 defaultServiceManager()->getService(String16("media.player")); 118 sp<IMediaPlayerService> service = interface_cast<IMediaPlayerService>(binder); 119 if (service.get() == NULL) { 120 LOGW("Cannot connect to the MediaPlayerService for battery tracking"); 121 return; 122 } 123 124 service->addBatteryData(params); 125} 126 127static int load_audio_interface(const char *if_name, const hw_module_t **mod, 128 audio_hw_device_t **dev) 129{ 130 int rc; 131 132 rc = hw_get_module_by_class(AUDIO_HARDWARE_MODULE_ID, if_name, mod); 133 if (rc) 134 goto out; 135 136 rc = audio_hw_device_open(*mod, dev); 137 LOGE_IF(rc, "couldn't open audio hw device in %s.%s (%s)", 138 AUDIO_HARDWARE_MODULE_ID, if_name, strerror(-rc)); 139 if (rc) 140 goto out; 141 142 return 0; 143 144out: 145 *mod = NULL; 146 *dev = NULL; 147 return rc; 148} 149 150static const char *audio_interfaces[] = { 151 "primary", 152 "a2dp", 153 "usb", 154}; 155#define ARRAY_SIZE(x) (sizeof((x))/sizeof(((x)[0]))) 156 157// ---------------------------------------------------------------------------- 158 159AudioFlinger::AudioFlinger() 160 : BnAudioFlinger(), 161 mPrimaryHardwareDev(0), mMasterVolume(1.0f), mMasterMute(false), mNextUniqueId(1), 162 mBtNrecIsOff(false) 163{ 164} 165 166void AudioFlinger::onFirstRef() 167{ 168 int rc = 0; 169 170 Mutex::Autolock _l(mLock); 171 172 /* TODO: move all this work into an Init() function */ 173 mHardwareStatus = AUDIO_HW_IDLE; 174 175 for (size_t i = 0; i < ARRAY_SIZE(audio_interfaces); i++) { 176 const hw_module_t *mod; 177 audio_hw_device_t *dev; 178 179 rc = load_audio_interface(audio_interfaces[i], &mod, &dev); 180 if (rc) 181 continue; 182 183 LOGI("Loaded %s audio interface from %s (%s)", audio_interfaces[i], 184 mod->name, mod->id); 185 mAudioHwDevs.push(dev); 186 187 if (!mPrimaryHardwareDev) { 188 mPrimaryHardwareDev = dev; 189 LOGI("Using '%s' (%s.%s) as the primary audio interface", 190 mod->name, mod->id, audio_interfaces[i]); 191 } 192 } 193 194 mHardwareStatus = AUDIO_HW_INIT; 195 196 if (!mPrimaryHardwareDev || mAudioHwDevs.size() == 0) { 197 LOGE("Primary audio interface not found"); 198 return; 199 } 200 201 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 202 audio_hw_device_t *dev = mAudioHwDevs[i]; 203 204 mHardwareStatus = AUDIO_HW_INIT; 205 rc = dev->init_check(dev); 206 if (rc == 0) { 207 AutoMutex lock(mHardwareLock); 208 209 mMode = AUDIO_MODE_NORMAL; 210 mHardwareStatus = AUDIO_HW_SET_MODE; 211 dev->set_mode(dev, mMode); 212 mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME; 213 dev->set_master_volume(dev, 1.0f); 214 mHardwareStatus = AUDIO_HW_IDLE; 215 } 216 } 217} 218 219status_t AudioFlinger::initCheck() const 220{ 221 Mutex::Autolock _l(mLock); 222 if (mPrimaryHardwareDev == NULL || mAudioHwDevs.size() == 0) 223 return NO_INIT; 224 return NO_ERROR; 225} 226 227AudioFlinger::~AudioFlinger() 228{ 229 int num_devs = mAudioHwDevs.size(); 230 231 while (!mRecordThreads.isEmpty()) { 232 // closeInput() will remove first entry from mRecordThreads 233 closeInput(mRecordThreads.keyAt(0)); 234 } 235 while (!mPlaybackThreads.isEmpty()) { 236 // closeOutput() will remove first entry from mPlaybackThreads 237 closeOutput(mPlaybackThreads.keyAt(0)); 238 } 239 240 for (int i = 0; i < num_devs; i++) { 241 audio_hw_device_t *dev = mAudioHwDevs[i]; 242 audio_hw_device_close(dev); 243 } 244 mAudioHwDevs.clear(); 245} 246 247audio_hw_device_t* AudioFlinger::findSuitableHwDev_l(uint32_t devices) 248{ 249 /* first matching HW device is returned */ 250 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 251 audio_hw_device_t *dev = mAudioHwDevs[i]; 252 if ((dev->get_supported_devices(dev) & devices) == devices) 253 return dev; 254 } 255 return NULL; 256} 257 258status_t AudioFlinger::dumpClients(int fd, const Vector<String16>& args) 259{ 260 const size_t SIZE = 256; 261 char buffer[SIZE]; 262 String8 result; 263 264 result.append("Clients:\n"); 265 for (size_t i = 0; i < mClients.size(); ++i) { 266 wp<Client> wClient = mClients.valueAt(i); 267 if (wClient != 0) { 268 sp<Client> client = wClient.promote(); 269 if (client != 0) { 270 snprintf(buffer, SIZE, " pid: %d\n", client->pid()); 271 result.append(buffer); 272 } 273 } 274 } 275 276 result.append("Global session refs:\n"); 277 result.append(" session pid cnt\n"); 278 for (size_t i = 0; i < mAudioSessionRefs.size(); i++) { 279 AudioSessionRef *r = mAudioSessionRefs[i]; 280 snprintf(buffer, SIZE, " %7d %3d %3d\n", r->sessionid, r->pid, r->cnt); 281 result.append(buffer); 282 } 283 write(fd, result.string(), result.size()); 284 return NO_ERROR; 285} 286 287 288status_t AudioFlinger::dumpInternals(int fd, const Vector<String16>& args) 289{ 290 const size_t SIZE = 256; 291 char buffer[SIZE]; 292 String8 result; 293 int hardwareStatus = mHardwareStatus; 294 295 snprintf(buffer, SIZE, "Hardware status: %d\n", hardwareStatus); 296 result.append(buffer); 297 write(fd, result.string(), result.size()); 298 return NO_ERROR; 299} 300 301status_t AudioFlinger::dumpPermissionDenial(int fd, const Vector<String16>& args) 302{ 303 const size_t SIZE = 256; 304 char buffer[SIZE]; 305 String8 result; 306 snprintf(buffer, SIZE, "Permission Denial: " 307 "can't dump AudioFlinger from pid=%d, uid=%d\n", 308 IPCThreadState::self()->getCallingPid(), 309 IPCThreadState::self()->getCallingUid()); 310 result.append(buffer); 311 write(fd, result.string(), result.size()); 312 return NO_ERROR; 313} 314 315static bool tryLock(Mutex& mutex) 316{ 317 bool locked = false; 318 for (int i = 0; i < kDumpLockRetries; ++i) { 319 if (mutex.tryLock() == NO_ERROR) { 320 locked = true; 321 break; 322 } 323 usleep(kDumpLockSleep); 324 } 325 return locked; 326} 327 328status_t AudioFlinger::dump(int fd, const Vector<String16>& args) 329{ 330 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 331 dumpPermissionDenial(fd, args); 332 } else { 333 // get state of hardware lock 334 bool hardwareLocked = tryLock(mHardwareLock); 335 if (!hardwareLocked) { 336 String8 result(kHardwareLockedString); 337 write(fd, result.string(), result.size()); 338 } else { 339 mHardwareLock.unlock(); 340 } 341 342 bool locked = tryLock(mLock); 343 344 // failed to lock - AudioFlinger is probably deadlocked 345 if (!locked) { 346 String8 result(kDeadlockedString); 347 write(fd, result.string(), result.size()); 348 } 349 350 dumpClients(fd, args); 351 dumpInternals(fd, args); 352 353 // dump playback threads 354 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 355 mPlaybackThreads.valueAt(i)->dump(fd, args); 356 } 357 358 // dump record threads 359 for (size_t i = 0; i < mRecordThreads.size(); i++) { 360 mRecordThreads.valueAt(i)->dump(fd, args); 361 } 362 363 // dump all hardware devs 364 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 365 audio_hw_device_t *dev = mAudioHwDevs[i]; 366 dev->dump(dev, fd); 367 } 368 if (locked) mLock.unlock(); 369 } 370 return NO_ERROR; 371} 372 373 374// IAudioFlinger interface 375 376 377sp<IAudioTrack> AudioFlinger::createTrack( 378 pid_t pid, 379 int streamType, 380 uint32_t sampleRate, 381 uint32_t format, 382 uint32_t channelMask, 383 int frameCount, 384 uint32_t flags, 385 const sp<IMemory>& sharedBuffer, 386 int output, 387 int *sessionId, 388 status_t *status) 389{ 390 sp<PlaybackThread::Track> track; 391 sp<TrackHandle> trackHandle; 392 sp<Client> client; 393 wp<Client> wclient; 394 status_t lStatus; 395 int lSessionId; 396 397 if (streamType >= AUDIO_STREAM_CNT) { 398 LOGE("invalid stream type"); 399 lStatus = BAD_VALUE; 400 goto Exit; 401 } 402 403 { 404 Mutex::Autolock _l(mLock); 405 PlaybackThread *thread = checkPlaybackThread_l(output); 406 PlaybackThread *effectThread = NULL; 407 if (thread == NULL) { 408 LOGE("unknown output thread"); 409 lStatus = BAD_VALUE; 410 goto Exit; 411 } 412 413 wclient = mClients.valueFor(pid); 414 415 if (wclient != NULL) { 416 client = wclient.promote(); 417 } else { 418 client = new Client(this, pid); 419 mClients.add(pid, client); 420 } 421 422 ALOGV("createTrack() sessionId: %d", (sessionId == NULL) ? -2 : *sessionId); 423 if (sessionId != NULL && *sessionId != AUDIO_SESSION_OUTPUT_MIX) { 424 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 425 sp<PlaybackThread> t = mPlaybackThreads.valueAt(i); 426 if (mPlaybackThreads.keyAt(i) != output) { 427 // prevent same audio session on different output threads 428 uint32_t sessions = t->hasAudioSession(*sessionId); 429 if (sessions & PlaybackThread::TRACK_SESSION) { 430 lStatus = BAD_VALUE; 431 goto Exit; 432 } 433 // check if an effect with same session ID is waiting for a track to be created 434 if (sessions & PlaybackThread::EFFECT_SESSION) { 435 effectThread = t.get(); 436 } 437 } 438 } 439 lSessionId = *sessionId; 440 } else { 441 // if no audio session id is provided, create one here 442 lSessionId = nextUniqueId(); 443 if (sessionId != NULL) { 444 *sessionId = lSessionId; 445 } 446 } 447 ALOGV("createTrack() lSessionId: %d", lSessionId); 448 449 track = thread->createTrack_l(client, streamType, sampleRate, format, 450 channelMask, frameCount, sharedBuffer, lSessionId, &lStatus); 451 452 // move effect chain to this output thread if an effect on same session was waiting 453 // for a track to be created 454 if (lStatus == NO_ERROR && effectThread != NULL) { 455 Mutex::Autolock _dl(thread->mLock); 456 Mutex::Autolock _sl(effectThread->mLock); 457 moveEffectChain_l(lSessionId, effectThread, thread, true); 458 } 459 } 460 if (lStatus == NO_ERROR) { 461 trackHandle = new TrackHandle(track); 462 } else { 463 // remove local strong reference to Client before deleting the Track so that the Client 464 // destructor is called by the TrackBase destructor with mLock held 465 client.clear(); 466 track.clear(); 467 } 468 469Exit: 470 if(status) { 471 *status = lStatus; 472 } 473 return trackHandle; 474} 475 476uint32_t AudioFlinger::sampleRate(int output) const 477{ 478 Mutex::Autolock _l(mLock); 479 PlaybackThread *thread = checkPlaybackThread_l(output); 480 if (thread == NULL) { 481 LOGW("sampleRate() unknown thread %d", output); 482 return 0; 483 } 484 return thread->sampleRate(); 485} 486 487int AudioFlinger::channelCount(int output) const 488{ 489 Mutex::Autolock _l(mLock); 490 PlaybackThread *thread = checkPlaybackThread_l(output); 491 if (thread == NULL) { 492 LOGW("channelCount() unknown thread %d", output); 493 return 0; 494 } 495 return thread->channelCount(); 496} 497 498uint32_t AudioFlinger::format(int output) const 499{ 500 Mutex::Autolock _l(mLock); 501 PlaybackThread *thread = checkPlaybackThread_l(output); 502 if (thread == NULL) { 503 LOGW("format() unknown thread %d", output); 504 return 0; 505 } 506 return thread->format(); 507} 508 509size_t AudioFlinger::frameCount(int output) const 510{ 511 Mutex::Autolock _l(mLock); 512 PlaybackThread *thread = checkPlaybackThread_l(output); 513 if (thread == NULL) { 514 LOGW("frameCount() unknown thread %d", output); 515 return 0; 516 } 517 return thread->frameCount(); 518} 519 520uint32_t AudioFlinger::latency(int output) const 521{ 522 Mutex::Autolock _l(mLock); 523 PlaybackThread *thread = checkPlaybackThread_l(output); 524 if (thread == NULL) { 525 LOGW("latency() unknown thread %d", output); 526 return 0; 527 } 528 return thread->latency(); 529} 530 531status_t AudioFlinger::setMasterVolume(float value) 532{ 533 status_t ret = initCheck(); 534 if (ret != NO_ERROR) { 535 return ret; 536 } 537 538 // check calling permissions 539 if (!settingsAllowed()) { 540 return PERMISSION_DENIED; 541 } 542 543 // when hw supports master volume, don't scale in sw mixer 544 { // scope for the lock 545 AutoMutex lock(mHardwareLock); 546 mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME; 547 if (mPrimaryHardwareDev->set_master_volume(mPrimaryHardwareDev, value) == NO_ERROR) { 548 value = 1.0f; 549 } 550 mHardwareStatus = AUDIO_HW_IDLE; 551 } 552 553 Mutex::Autolock _l(mLock); 554 mMasterVolume = value; 555 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 556 mPlaybackThreads.valueAt(i)->setMasterVolume(value); 557 558 return NO_ERROR; 559} 560 561status_t AudioFlinger::setMode(int mode) 562{ 563 status_t ret = initCheck(); 564 if (ret != NO_ERROR) { 565 return ret; 566 } 567 568 // check calling permissions 569 if (!settingsAllowed()) { 570 return PERMISSION_DENIED; 571 } 572 if ((mode < 0) || (mode >= AUDIO_MODE_CNT)) { 573 LOGW("Illegal value: setMode(%d)", mode); 574 return BAD_VALUE; 575 } 576 577 { // scope for the lock 578 AutoMutex lock(mHardwareLock); 579 mHardwareStatus = AUDIO_HW_SET_MODE; 580 ret = mPrimaryHardwareDev->set_mode(mPrimaryHardwareDev, mode); 581 mHardwareStatus = AUDIO_HW_IDLE; 582 } 583 584 if (NO_ERROR == ret) { 585 Mutex::Autolock _l(mLock); 586 mMode = mode; 587 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 588 mPlaybackThreads.valueAt(i)->setMode(mode); 589 } 590 591 return ret; 592} 593 594status_t AudioFlinger::setMicMute(bool state) 595{ 596 status_t ret = initCheck(); 597 if (ret != NO_ERROR) { 598 return ret; 599 } 600 601 // check calling permissions 602 if (!settingsAllowed()) { 603 return PERMISSION_DENIED; 604 } 605 606 AutoMutex lock(mHardwareLock); 607 mHardwareStatus = AUDIO_HW_SET_MIC_MUTE; 608 ret = mPrimaryHardwareDev->set_mic_mute(mPrimaryHardwareDev, state); 609 mHardwareStatus = AUDIO_HW_IDLE; 610 return ret; 611} 612 613bool AudioFlinger::getMicMute() const 614{ 615 status_t ret = initCheck(); 616 if (ret != NO_ERROR) { 617 return false; 618 } 619 620 bool state = AUDIO_MODE_INVALID; 621 mHardwareStatus = AUDIO_HW_GET_MIC_MUTE; 622 mPrimaryHardwareDev->get_mic_mute(mPrimaryHardwareDev, &state); 623 mHardwareStatus = AUDIO_HW_IDLE; 624 return state; 625} 626 627status_t AudioFlinger::setMasterMute(bool muted) 628{ 629 // check calling permissions 630 if (!settingsAllowed()) { 631 return PERMISSION_DENIED; 632 } 633 634 Mutex::Autolock _l(mLock); 635 mMasterMute = muted; 636 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 637 mPlaybackThreads.valueAt(i)->setMasterMute(muted); 638 639 return NO_ERROR; 640} 641 642float AudioFlinger::masterVolume() const 643{ 644 return mMasterVolume; 645} 646 647bool AudioFlinger::masterMute() const 648{ 649 return mMasterMute; 650} 651 652status_t AudioFlinger::setStreamVolume(int stream, float value, int output) 653{ 654 // check calling permissions 655 if (!settingsAllowed()) { 656 return PERMISSION_DENIED; 657 } 658 659 if (stream < 0 || uint32_t(stream) >= AUDIO_STREAM_CNT) { 660 return BAD_VALUE; 661 } 662 663 AutoMutex lock(mLock); 664 PlaybackThread *thread = NULL; 665 if (output) { 666 thread = checkPlaybackThread_l(output); 667 if (thread == NULL) { 668 return BAD_VALUE; 669 } 670 } 671 672 mStreamTypes[stream].volume = value; 673 674 if (thread == NULL) { 675 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) { 676 mPlaybackThreads.valueAt(i)->setStreamVolume(stream, value); 677 } 678 } else { 679 thread->setStreamVolume(stream, value); 680 } 681 682 return NO_ERROR; 683} 684 685status_t AudioFlinger::setStreamMute(int stream, bool muted) 686{ 687 // check calling permissions 688 if (!settingsAllowed()) { 689 return PERMISSION_DENIED; 690 } 691 692 if (stream < 0 || uint32_t(stream) >= AUDIO_STREAM_CNT || 693 uint32_t(stream) == AUDIO_STREAM_ENFORCED_AUDIBLE) { 694 return BAD_VALUE; 695 } 696 697 AutoMutex lock(mLock); 698 mStreamTypes[stream].mute = muted; 699 for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) 700 mPlaybackThreads.valueAt(i)->setStreamMute(stream, muted); 701 702 return NO_ERROR; 703} 704 705float AudioFlinger::streamVolume(int stream, int output) const 706{ 707 if (stream < 0 || uint32_t(stream) >= AUDIO_STREAM_CNT) { 708 return 0.0f; 709 } 710 711 AutoMutex lock(mLock); 712 float volume; 713 if (output) { 714 PlaybackThread *thread = checkPlaybackThread_l(output); 715 if (thread == NULL) { 716 return 0.0f; 717 } 718 volume = thread->streamVolume(stream); 719 } else { 720 volume = mStreamTypes[stream].volume; 721 } 722 723 return volume; 724} 725 726bool AudioFlinger::streamMute(int stream) const 727{ 728 if (stream < 0 || stream >= (int)AUDIO_STREAM_CNT) { 729 return true; 730 } 731 732 return mStreamTypes[stream].mute; 733} 734 735status_t AudioFlinger::setParameters(int ioHandle, const String8& keyValuePairs) 736{ 737 status_t result; 738 739 ALOGV("setParameters(): io %d, keyvalue %s, tid %d, calling tid %d", 740 ioHandle, keyValuePairs.string(), gettid(), IPCThreadState::self()->getCallingPid()); 741 // check calling permissions 742 if (!settingsAllowed()) { 743 return PERMISSION_DENIED; 744 } 745 746 // ioHandle == 0 means the parameters are global to the audio hardware interface 747 if (ioHandle == 0) { 748 AutoMutex lock(mHardwareLock); 749 mHardwareStatus = AUDIO_SET_PARAMETER; 750 status_t final_result = NO_ERROR; 751 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 752 audio_hw_device_t *dev = mAudioHwDevs[i]; 753 result = dev->set_parameters(dev, keyValuePairs.string()); 754 final_result = result ?: final_result; 755 } 756 mHardwareStatus = AUDIO_HW_IDLE; 757 // disable AEC and NS if the device is a BT SCO headset supporting those pre processings 758 AudioParameter param = AudioParameter(keyValuePairs); 759 String8 value; 760 if (param.get(String8(AUDIO_PARAMETER_KEY_BT_NREC), value) == NO_ERROR) { 761 Mutex::Autolock _l(mLock); 762 bool btNrecIsOff = (value == AUDIO_PARAMETER_VALUE_OFF); 763 if (mBtNrecIsOff != btNrecIsOff) { 764 for (size_t i = 0; i < mRecordThreads.size(); i++) { 765 sp<RecordThread> thread = mRecordThreads.valueAt(i); 766 RecordThread::RecordTrack *track = thread->track(); 767 if (track != NULL) { 768 audio_devices_t device = (audio_devices_t)( 769 thread->device() & AUDIO_DEVICE_IN_ALL); 770 bool suspend = audio_is_bluetooth_sco_device(device) && btNrecIsOff; 771 thread->setEffectSuspended(FX_IID_AEC, 772 suspend, 773 track->sessionId()); 774 thread->setEffectSuspended(FX_IID_NS, 775 suspend, 776 track->sessionId()); 777 } 778 } 779 mBtNrecIsOff = btNrecIsOff; 780 } 781 } 782 return final_result; 783 } 784 785 // hold a strong ref on thread in case closeOutput() or closeInput() is called 786 // and the thread is exited once the lock is released 787 sp<ThreadBase> thread; 788 { 789 Mutex::Autolock _l(mLock); 790 thread = checkPlaybackThread_l(ioHandle); 791 if (thread == NULL) { 792 thread = checkRecordThread_l(ioHandle); 793 } else if (thread.get() == primaryPlaybackThread_l()) { 794 // indicate output device change to all input threads for pre processing 795 AudioParameter param = AudioParameter(keyValuePairs); 796 int value; 797 if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) { 798 for (size_t i = 0; i < mRecordThreads.size(); i++) { 799 mRecordThreads.valueAt(i)->setParameters(keyValuePairs); 800 } 801 } 802 } 803 } 804 if (thread != NULL) { 805 result = thread->setParameters(keyValuePairs); 806 return result; 807 } 808 return BAD_VALUE; 809} 810 811String8 AudioFlinger::getParameters(int ioHandle, const String8& keys) 812{ 813// ALOGV("getParameters() io %d, keys %s, tid %d, calling tid %d", 814// ioHandle, keys.string(), gettid(), IPCThreadState::self()->getCallingPid()); 815 816 if (ioHandle == 0) { 817 String8 out_s8; 818 819 for (size_t i = 0; i < mAudioHwDevs.size(); i++) { 820 audio_hw_device_t *dev = mAudioHwDevs[i]; 821 char *s = dev->get_parameters(dev, keys.string()); 822 out_s8 += String8(s); 823 free(s); 824 } 825 return out_s8; 826 } 827 828 Mutex::Autolock _l(mLock); 829 830 PlaybackThread *playbackThread = checkPlaybackThread_l(ioHandle); 831 if (playbackThread != NULL) { 832 return playbackThread->getParameters(keys); 833 } 834 RecordThread *recordThread = checkRecordThread_l(ioHandle); 835 if (recordThread != NULL) { 836 return recordThread->getParameters(keys); 837 } 838 return String8(""); 839} 840 841size_t AudioFlinger::getInputBufferSize(uint32_t sampleRate, int format, int channelCount) 842{ 843 status_t ret = initCheck(); 844 if (ret != NO_ERROR) { 845 return 0; 846 } 847 848 return mPrimaryHardwareDev->get_input_buffer_size(mPrimaryHardwareDev, sampleRate, format, channelCount); 849} 850 851unsigned int AudioFlinger::getInputFramesLost(int ioHandle) 852{ 853 if (ioHandle == 0) { 854 return 0; 855 } 856 857 Mutex::Autolock _l(mLock); 858 859 RecordThread *recordThread = checkRecordThread_l(ioHandle); 860 if (recordThread != NULL) { 861 return recordThread->getInputFramesLost(); 862 } 863 return 0; 864} 865 866status_t AudioFlinger::setVoiceVolume(float value) 867{ 868 status_t ret = initCheck(); 869 if (ret != NO_ERROR) { 870 return ret; 871 } 872 873 // check calling permissions 874 if (!settingsAllowed()) { 875 return PERMISSION_DENIED; 876 } 877 878 AutoMutex lock(mHardwareLock); 879 mHardwareStatus = AUDIO_SET_VOICE_VOLUME; 880 ret = mPrimaryHardwareDev->set_voice_volume(mPrimaryHardwareDev, value); 881 mHardwareStatus = AUDIO_HW_IDLE; 882 883 return ret; 884} 885 886status_t AudioFlinger::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output) 887{ 888 status_t status; 889 890 Mutex::Autolock _l(mLock); 891 892 PlaybackThread *playbackThread = checkPlaybackThread_l(output); 893 if (playbackThread != NULL) { 894 return playbackThread->getRenderPosition(halFrames, dspFrames); 895 } 896 897 return BAD_VALUE; 898} 899 900void AudioFlinger::registerClient(const sp<IAudioFlingerClient>& client) 901{ 902 903 Mutex::Autolock _l(mLock); 904 905 int pid = IPCThreadState::self()->getCallingPid(); 906 if (mNotificationClients.indexOfKey(pid) < 0) { 907 sp<NotificationClient> notificationClient = new NotificationClient(this, 908 client, 909 pid); 910 ALOGV("registerClient() client %p, pid %d", notificationClient.get(), pid); 911 912 mNotificationClients.add(pid, notificationClient); 913 914 sp<IBinder> binder = client->asBinder(); 915 binder->linkToDeath(notificationClient); 916 917 // the config change is always sent from playback or record threads to avoid deadlock 918 // with AudioSystem::gLock 919 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 920 mPlaybackThreads.valueAt(i)->sendConfigEvent(AudioSystem::OUTPUT_OPENED); 921 } 922 923 for (size_t i = 0; i < mRecordThreads.size(); i++) { 924 mRecordThreads.valueAt(i)->sendConfigEvent(AudioSystem::INPUT_OPENED); 925 } 926 } 927} 928 929void AudioFlinger::removeNotificationClient(pid_t pid) 930{ 931 Mutex::Autolock _l(mLock); 932 933 int index = mNotificationClients.indexOfKey(pid); 934 if (index >= 0) { 935 sp <NotificationClient> client = mNotificationClients.valueFor(pid); 936 ALOGV("removeNotificationClient() %p, pid %d", client.get(), pid); 937 mNotificationClients.removeItem(pid); 938 } 939 940 ALOGV("%d died, releasing its sessions", pid); 941 int num = mAudioSessionRefs.size(); 942 bool removed = false; 943 for (int i = 0; i< num; i++) { 944 AudioSessionRef *ref = mAudioSessionRefs.itemAt(i); 945 ALOGV(" pid %d @ %d", ref->pid, i); 946 if (ref->pid == pid) { 947 ALOGV(" removing entry for pid %d session %d", pid, ref->sessionid); 948 mAudioSessionRefs.removeAt(i); 949 delete ref; 950 removed = true; 951 i--; 952 num--; 953 } 954 } 955 if (removed) { 956 purgeStaleEffects_l(); 957 } 958} 959 960// audioConfigChanged_l() must be called with AudioFlinger::mLock held 961void AudioFlinger::audioConfigChanged_l(int event, int ioHandle, void *param2) 962{ 963 size_t size = mNotificationClients.size(); 964 for (size_t i = 0; i < size; i++) { 965 mNotificationClients.valueAt(i)->client()->ioConfigChanged(event, ioHandle, param2); 966 } 967} 968 969// removeClient_l() must be called with AudioFlinger::mLock held 970void AudioFlinger::removeClient_l(pid_t pid) 971{ 972 ALOGV("removeClient_l() pid %d, tid %d, calling tid %d", pid, gettid(), IPCThreadState::self()->getCallingPid()); 973 mClients.removeItem(pid); 974} 975 976 977// ---------------------------------------------------------------------------- 978 979AudioFlinger::ThreadBase::ThreadBase(const sp<AudioFlinger>& audioFlinger, int id, uint32_t device) 980 : Thread(false), 981 mAudioFlinger(audioFlinger), mSampleRate(0), mFrameCount(0), mChannelCount(0), 982 mFrameSize(1), mFormat(0), mStandby(false), mId(id), mExiting(false), 983 mDevice(device) 984{ 985 mDeathRecipient = new PMDeathRecipient(this); 986} 987 988AudioFlinger::ThreadBase::~ThreadBase() 989{ 990 mParamCond.broadcast(); 991 // do not lock the mutex in destructor 992 releaseWakeLock_l(); 993 if (mPowerManager != 0) { 994 sp<IBinder> binder = mPowerManager->asBinder(); 995 binder->unlinkToDeath(mDeathRecipient); 996 } 997} 998 999void AudioFlinger::ThreadBase::exit() 1000{ 1001 // keep a strong ref on ourself so that we wont get 1002 // destroyed in the middle of requestExitAndWait() 1003 sp <ThreadBase> strongMe = this; 1004 1005 ALOGV("ThreadBase::exit"); 1006 { 1007 AutoMutex lock(&mLock); 1008 mExiting = true; 1009 requestExit(); 1010 mWaitWorkCV.signal(); 1011 } 1012 requestExitAndWait(); 1013} 1014 1015uint32_t AudioFlinger::ThreadBase::sampleRate() const 1016{ 1017 return mSampleRate; 1018} 1019 1020int AudioFlinger::ThreadBase::channelCount() const 1021{ 1022 return (int)mChannelCount; 1023} 1024 1025uint32_t AudioFlinger::ThreadBase::format() const 1026{ 1027 return mFormat; 1028} 1029 1030size_t AudioFlinger::ThreadBase::frameCount() const 1031{ 1032 return mFrameCount; 1033} 1034 1035status_t AudioFlinger::ThreadBase::setParameters(const String8& keyValuePairs) 1036{ 1037 status_t status; 1038 1039 ALOGV("ThreadBase::setParameters() %s", keyValuePairs.string()); 1040 Mutex::Autolock _l(mLock); 1041 1042 mNewParameters.add(keyValuePairs); 1043 mWaitWorkCV.signal(); 1044 // wait condition with timeout in case the thread loop has exited 1045 // before the request could be processed 1046 if (mParamCond.waitRelative(mLock, kSetParametersTimeout) == NO_ERROR) { 1047 status = mParamStatus; 1048 mWaitWorkCV.signal(); 1049 } else { 1050 status = TIMED_OUT; 1051 } 1052 return status; 1053} 1054 1055void AudioFlinger::ThreadBase::sendConfigEvent(int event, int param) 1056{ 1057 Mutex::Autolock _l(mLock); 1058 sendConfigEvent_l(event, param); 1059} 1060 1061// sendConfigEvent_l() must be called with ThreadBase::mLock held 1062void AudioFlinger::ThreadBase::sendConfigEvent_l(int event, int param) 1063{ 1064 ConfigEvent *configEvent = new ConfigEvent(); 1065 configEvent->mEvent = event; 1066 configEvent->mParam = param; 1067 mConfigEvents.add(configEvent); 1068 ALOGV("sendConfigEvent() num events %d event %d, param %d", mConfigEvents.size(), event, param); 1069 mWaitWorkCV.signal(); 1070} 1071 1072void AudioFlinger::ThreadBase::processConfigEvents() 1073{ 1074 mLock.lock(); 1075 while(!mConfigEvents.isEmpty()) { 1076 ALOGV("processConfigEvents() remaining events %d", mConfigEvents.size()); 1077 ConfigEvent *configEvent = mConfigEvents[0]; 1078 mConfigEvents.removeAt(0); 1079 // release mLock before locking AudioFlinger mLock: lock order is always 1080 // AudioFlinger then ThreadBase to avoid cross deadlock 1081 mLock.unlock(); 1082 mAudioFlinger->mLock.lock(); 1083 audioConfigChanged_l(configEvent->mEvent, configEvent->mParam); 1084 mAudioFlinger->mLock.unlock(); 1085 delete configEvent; 1086 mLock.lock(); 1087 } 1088 mLock.unlock(); 1089} 1090 1091status_t AudioFlinger::ThreadBase::dumpBase(int fd, const Vector<String16>& args) 1092{ 1093 const size_t SIZE = 256; 1094 char buffer[SIZE]; 1095 String8 result; 1096 1097 bool locked = tryLock(mLock); 1098 if (!locked) { 1099 snprintf(buffer, SIZE, "thread %p maybe dead locked\n", this); 1100 write(fd, buffer, strlen(buffer)); 1101 } 1102 1103 snprintf(buffer, SIZE, "standby: %d\n", mStandby); 1104 result.append(buffer); 1105 snprintf(buffer, SIZE, "Sample rate: %d\n", mSampleRate); 1106 result.append(buffer); 1107 snprintf(buffer, SIZE, "Frame count: %d\n", mFrameCount); 1108 result.append(buffer); 1109 snprintf(buffer, SIZE, "Channel Count: %d\n", mChannelCount); 1110 result.append(buffer); 1111 snprintf(buffer, SIZE, "Channel Mask: 0x%08x\n", mChannelMask); 1112 result.append(buffer); 1113 snprintf(buffer, SIZE, "Format: %d\n", mFormat); 1114 result.append(buffer); 1115 snprintf(buffer, SIZE, "Frame size: %d\n", mFrameSize); 1116 result.append(buffer); 1117 1118 snprintf(buffer, SIZE, "\nPending setParameters commands: \n"); 1119 result.append(buffer); 1120 result.append(" Index Command"); 1121 for (size_t i = 0; i < mNewParameters.size(); ++i) { 1122 snprintf(buffer, SIZE, "\n %02d ", i); 1123 result.append(buffer); 1124 result.append(mNewParameters[i]); 1125 } 1126 1127 snprintf(buffer, SIZE, "\n\nPending config events: \n"); 1128 result.append(buffer); 1129 snprintf(buffer, SIZE, " Index event param\n"); 1130 result.append(buffer); 1131 for (size_t i = 0; i < mConfigEvents.size(); i++) { 1132 snprintf(buffer, SIZE, " %02d %02d %d\n", i, mConfigEvents[i]->mEvent, mConfigEvents[i]->mParam); 1133 result.append(buffer); 1134 } 1135 result.append("\n"); 1136 1137 write(fd, result.string(), result.size()); 1138 1139 if (locked) { 1140 mLock.unlock(); 1141 } 1142 return NO_ERROR; 1143} 1144 1145status_t AudioFlinger::ThreadBase::dumpEffectChains(int fd, const Vector<String16>& args) 1146{ 1147 const size_t SIZE = 256; 1148 char buffer[SIZE]; 1149 String8 result; 1150 1151 snprintf(buffer, SIZE, "\n- %d Effect Chains:\n", mEffectChains.size()); 1152 write(fd, buffer, strlen(buffer)); 1153 1154 for (size_t i = 0; i < mEffectChains.size(); ++i) { 1155 sp<EffectChain> chain = mEffectChains[i]; 1156 if (chain != 0) { 1157 chain->dump(fd, args); 1158 } 1159 } 1160 return NO_ERROR; 1161} 1162 1163void AudioFlinger::ThreadBase::acquireWakeLock() 1164{ 1165 Mutex::Autolock _l(mLock); 1166 acquireWakeLock_l(); 1167} 1168 1169void AudioFlinger::ThreadBase::acquireWakeLock_l() 1170{ 1171 if (mPowerManager == 0) { 1172 // use checkService() to avoid blocking if power service is not up yet 1173 sp<IBinder> binder = 1174 defaultServiceManager()->checkService(String16("power")); 1175 if (binder == 0) { 1176 LOGW("Thread %s cannot connect to the power manager service", mName); 1177 } else { 1178 mPowerManager = interface_cast<IPowerManager>(binder); 1179 binder->linkToDeath(mDeathRecipient); 1180 } 1181 } 1182 if (mPowerManager != 0) { 1183 sp<IBinder> binder = new BBinder(); 1184 status_t status = mPowerManager->acquireWakeLock(POWERMANAGER_PARTIAL_WAKE_LOCK, 1185 binder, 1186 String16(mName)); 1187 if (status == NO_ERROR) { 1188 mWakeLockToken = binder; 1189 } 1190 ALOGV("acquireWakeLock_l() %s status %d", mName, status); 1191 } 1192} 1193 1194void AudioFlinger::ThreadBase::releaseWakeLock() 1195{ 1196 Mutex::Autolock _l(mLock); 1197 releaseWakeLock_l(); 1198} 1199 1200void AudioFlinger::ThreadBase::releaseWakeLock_l() 1201{ 1202 if (mWakeLockToken != 0) { 1203 ALOGV("releaseWakeLock_l() %s", mName); 1204 if (mPowerManager != 0) { 1205 mPowerManager->releaseWakeLock(mWakeLockToken, 0); 1206 } 1207 mWakeLockToken.clear(); 1208 } 1209} 1210 1211void AudioFlinger::ThreadBase::clearPowerManager() 1212{ 1213 Mutex::Autolock _l(mLock); 1214 releaseWakeLock_l(); 1215 mPowerManager.clear(); 1216} 1217 1218void AudioFlinger::ThreadBase::PMDeathRecipient::binderDied(const wp<IBinder>& who) 1219{ 1220 sp<ThreadBase> thread = mThread.promote(); 1221 if (thread != 0) { 1222 thread->clearPowerManager(); 1223 } 1224 LOGW("power manager service died !!!"); 1225} 1226 1227void AudioFlinger::ThreadBase::setEffectSuspended( 1228 const effect_uuid_t *type, bool suspend, int sessionId) 1229{ 1230 Mutex::Autolock _l(mLock); 1231 setEffectSuspended_l(type, suspend, sessionId); 1232} 1233 1234void AudioFlinger::ThreadBase::setEffectSuspended_l( 1235 const effect_uuid_t *type, bool suspend, int sessionId) 1236{ 1237 sp<EffectChain> chain; 1238 chain = getEffectChain_l(sessionId); 1239 if (chain != 0) { 1240 if (type != NULL) { 1241 chain->setEffectSuspended_l(type, suspend); 1242 } else { 1243 chain->setEffectSuspendedAll_l(suspend); 1244 } 1245 } 1246 1247 updateSuspendedSessions_l(type, suspend, sessionId); 1248} 1249 1250void AudioFlinger::ThreadBase::checkSuspendOnAddEffectChain_l(const sp<EffectChain>& chain) 1251{ 1252 int index = mSuspendedSessions.indexOfKey(chain->sessionId()); 1253 if (index < 0) { 1254 return; 1255 } 1256 1257 KeyedVector <int, sp<SuspendedSessionDesc> > sessionEffects = 1258 mSuspendedSessions.editValueAt(index); 1259 1260 for (size_t i = 0; i < sessionEffects.size(); i++) { 1261 sp <SuspendedSessionDesc> desc = sessionEffects.valueAt(i); 1262 for (int j = 0; j < desc->mRefCount; j++) { 1263 if (sessionEffects.keyAt(i) == EffectChain::kKeyForSuspendAll) { 1264 chain->setEffectSuspendedAll_l(true); 1265 } else { 1266 ALOGV("checkSuspendOnAddEffectChain_l() suspending effects %08x", 1267 desc->mType.timeLow); 1268 chain->setEffectSuspended_l(&desc->mType, true); 1269 } 1270 } 1271 } 1272} 1273 1274void AudioFlinger::ThreadBase::updateSuspendedSessions_l(const effect_uuid_t *type, 1275 bool suspend, 1276 int sessionId) 1277{ 1278 int index = mSuspendedSessions.indexOfKey(sessionId); 1279 1280 KeyedVector <int, sp<SuspendedSessionDesc> > sessionEffects; 1281 1282 if (suspend) { 1283 if (index >= 0) { 1284 sessionEffects = mSuspendedSessions.editValueAt(index); 1285 } else { 1286 mSuspendedSessions.add(sessionId, sessionEffects); 1287 } 1288 } else { 1289 if (index < 0) { 1290 return; 1291 } 1292 sessionEffects = mSuspendedSessions.editValueAt(index); 1293 } 1294 1295 1296 int key = EffectChain::kKeyForSuspendAll; 1297 if (type != NULL) { 1298 key = type->timeLow; 1299 } 1300 index = sessionEffects.indexOfKey(key); 1301 1302 sp <SuspendedSessionDesc> desc; 1303 if (suspend) { 1304 if (index >= 0) { 1305 desc = sessionEffects.valueAt(index); 1306 } else { 1307 desc = new SuspendedSessionDesc(); 1308 if (type != NULL) { 1309 memcpy(&desc->mType, type, sizeof(effect_uuid_t)); 1310 } 1311 sessionEffects.add(key, desc); 1312 ALOGV("updateSuspendedSessions_l() suspend adding effect %08x", key); 1313 } 1314 desc->mRefCount++; 1315 } else { 1316 if (index < 0) { 1317 return; 1318 } 1319 desc = sessionEffects.valueAt(index); 1320 if (--desc->mRefCount == 0) { 1321 ALOGV("updateSuspendedSessions_l() restore removing effect %08x", key); 1322 sessionEffects.removeItemsAt(index); 1323 if (sessionEffects.isEmpty()) { 1324 ALOGV("updateSuspendedSessions_l() restore removing session %d", 1325 sessionId); 1326 mSuspendedSessions.removeItem(sessionId); 1327 } 1328 } 1329 } 1330 if (!sessionEffects.isEmpty()) { 1331 mSuspendedSessions.replaceValueFor(sessionId, sessionEffects); 1332 } 1333} 1334 1335void AudioFlinger::ThreadBase::checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, 1336 bool enabled, 1337 int sessionId) 1338{ 1339 Mutex::Autolock _l(mLock); 1340 checkSuspendOnEffectEnabled_l(effect, enabled, sessionId); 1341} 1342 1343void AudioFlinger::ThreadBase::checkSuspendOnEffectEnabled_l(const sp<EffectModule>& effect, 1344 bool enabled, 1345 int sessionId) 1346{ 1347 if (mType != RECORD) { 1348 // suspend all effects in AUDIO_SESSION_OUTPUT_MIX when enabling any effect on 1349 // another session. This gives the priority to well behaved effect control panels 1350 // and applications not using global effects. 1351 if (sessionId != AUDIO_SESSION_OUTPUT_MIX) { 1352 setEffectSuspended_l(NULL, enabled, AUDIO_SESSION_OUTPUT_MIX); 1353 } 1354 } 1355 1356 sp<EffectChain> chain = getEffectChain_l(sessionId); 1357 if (chain != 0) { 1358 chain->checkSuspendOnEffectEnabled(effect, enabled); 1359 } 1360} 1361 1362// ---------------------------------------------------------------------------- 1363 1364AudioFlinger::PlaybackThread::PlaybackThread(const sp<AudioFlinger>& audioFlinger, 1365 AudioStreamOut* output, 1366 int id, 1367 uint32_t device) 1368 : ThreadBase(audioFlinger, id, device), 1369 mMixBuffer(0), mSuspended(0), mBytesWritten(0), mOutput(output), 1370 mLastWriteTime(0), mNumWrites(0), mNumDelayedWrites(0), mInWrite(false) 1371{ 1372 snprintf(mName, kNameLength, "AudioOut_%d", id); 1373 1374 readOutputParameters(); 1375 1376 mMasterVolume = mAudioFlinger->masterVolume(); 1377 mMasterMute = mAudioFlinger->masterMute(); 1378 1379 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) { 1380 mStreamTypes[stream].volume = mAudioFlinger->streamVolumeInternal(stream); 1381 mStreamTypes[stream].mute = mAudioFlinger->streamMute(stream); 1382 mStreamTypes[stream].valid = true; 1383 } 1384} 1385 1386AudioFlinger::PlaybackThread::~PlaybackThread() 1387{ 1388 delete [] mMixBuffer; 1389} 1390 1391status_t AudioFlinger::PlaybackThread::dump(int fd, const Vector<String16>& args) 1392{ 1393 dumpInternals(fd, args); 1394 dumpTracks(fd, args); 1395 dumpEffectChains(fd, args); 1396 return NO_ERROR; 1397} 1398 1399status_t AudioFlinger::PlaybackThread::dumpTracks(int fd, const Vector<String16>& args) 1400{ 1401 const size_t SIZE = 256; 1402 char buffer[SIZE]; 1403 String8 result; 1404 1405 snprintf(buffer, SIZE, "Output thread %p tracks\n", this); 1406 result.append(buffer); 1407 result.append(" Name Clien Typ Fmt Chn mask Session Buf S M F SRate LeftV RighV Serv User Main buf Aux Buf\n"); 1408 for (size_t i = 0; i < mTracks.size(); ++i) { 1409 sp<Track> track = mTracks[i]; 1410 if (track != 0) { 1411 track->dump(buffer, SIZE); 1412 result.append(buffer); 1413 } 1414 } 1415 1416 snprintf(buffer, SIZE, "Output thread %p active tracks\n", this); 1417 result.append(buffer); 1418 result.append(" Name Clien Typ Fmt Chn mask Session Buf S M F SRate LeftV RighV Serv User Main buf Aux Buf\n"); 1419 for (size_t i = 0; i < mActiveTracks.size(); ++i) { 1420 wp<Track> wTrack = mActiveTracks[i]; 1421 if (wTrack != 0) { 1422 sp<Track> track = wTrack.promote(); 1423 if (track != 0) { 1424 track->dump(buffer, SIZE); 1425 result.append(buffer); 1426 } 1427 } 1428 } 1429 write(fd, result.string(), result.size()); 1430 return NO_ERROR; 1431} 1432 1433status_t AudioFlinger::PlaybackThread::dumpInternals(int fd, const Vector<String16>& args) 1434{ 1435 const size_t SIZE = 256; 1436 char buffer[SIZE]; 1437 String8 result; 1438 1439 snprintf(buffer, SIZE, "\nOutput thread %p internals\n", this); 1440 result.append(buffer); 1441 snprintf(buffer, SIZE, "last write occurred (msecs): %llu\n", ns2ms(systemTime() - mLastWriteTime)); 1442 result.append(buffer); 1443 snprintf(buffer, SIZE, "total writes: %d\n", mNumWrites); 1444 result.append(buffer); 1445 snprintf(buffer, SIZE, "delayed writes: %d\n", mNumDelayedWrites); 1446 result.append(buffer); 1447 snprintf(buffer, SIZE, "blocked in write: %d\n", mInWrite); 1448 result.append(buffer); 1449 snprintf(buffer, SIZE, "suspend count: %d\n", mSuspended); 1450 result.append(buffer); 1451 snprintf(buffer, SIZE, "mix buffer : %p\n", mMixBuffer); 1452 result.append(buffer); 1453 write(fd, result.string(), result.size()); 1454 1455 dumpBase(fd, args); 1456 1457 return NO_ERROR; 1458} 1459 1460// Thread virtuals 1461status_t AudioFlinger::PlaybackThread::readyToRun() 1462{ 1463 status_t status = initCheck(); 1464 if (status == NO_ERROR) { 1465 LOGI("AudioFlinger's thread %p ready to run", this); 1466 } else { 1467 LOGE("No working audio driver found."); 1468 } 1469 return status; 1470} 1471 1472void AudioFlinger::PlaybackThread::onFirstRef() 1473{ 1474 run(mName, ANDROID_PRIORITY_URGENT_AUDIO); 1475} 1476 1477// PlaybackThread::createTrack_l() must be called with AudioFlinger::mLock held 1478sp<AudioFlinger::PlaybackThread::Track> AudioFlinger::PlaybackThread::createTrack_l( 1479 const sp<AudioFlinger::Client>& client, 1480 int streamType, 1481 uint32_t sampleRate, 1482 uint32_t format, 1483 uint32_t channelMask, 1484 int frameCount, 1485 const sp<IMemory>& sharedBuffer, 1486 int sessionId, 1487 status_t *status) 1488{ 1489 sp<Track> track; 1490 status_t lStatus; 1491 1492 if (mType == DIRECT) { 1493 if ((format & AUDIO_FORMAT_MAIN_MASK) == AUDIO_FORMAT_PCM) { 1494 if (sampleRate != mSampleRate || format != mFormat || channelMask != mChannelMask) { 1495 LOGE("createTrack_l() Bad parameter: sampleRate %d format %d, channelMask 0x%08x \"" 1496 "for output %p with format %d", 1497 sampleRate, format, channelMask, mOutput, mFormat); 1498 lStatus = BAD_VALUE; 1499 goto Exit; 1500 } 1501 } 1502 } else { 1503 // Resampler implementation limits input sampling rate to 2 x output sampling rate. 1504 if (sampleRate > mSampleRate*2) { 1505 LOGE("Sample rate out of range: %d mSampleRate %d", sampleRate, mSampleRate); 1506 lStatus = BAD_VALUE; 1507 goto Exit; 1508 } 1509 } 1510 1511 lStatus = initCheck(); 1512 if (lStatus != NO_ERROR) { 1513 LOGE("Audio driver not initialized."); 1514 goto Exit; 1515 } 1516 1517 { // scope for mLock 1518 Mutex::Autolock _l(mLock); 1519 1520 // all tracks in same audio session must share the same routing strategy otherwise 1521 // conflicts will happen when tracks are moved from one output to another by audio policy 1522 // manager 1523 uint32_t strategy = 1524 AudioSystem::getStrategyForStream((audio_stream_type_t)streamType); 1525 for (size_t i = 0; i < mTracks.size(); ++i) { 1526 sp<Track> t = mTracks[i]; 1527 if (t != 0) { 1528 if (sessionId == t->sessionId() && 1529 strategy != AudioSystem::getStrategyForStream((audio_stream_type_t)t->type())) { 1530 lStatus = BAD_VALUE; 1531 goto Exit; 1532 } 1533 } 1534 } 1535 1536 track = new Track(this, client, streamType, sampleRate, format, 1537 channelMask, frameCount, sharedBuffer, sessionId); 1538 if (track->getCblk() == NULL || track->name() < 0) { 1539 lStatus = NO_MEMORY; 1540 goto Exit; 1541 } 1542 mTracks.add(track); 1543 1544 sp<EffectChain> chain = getEffectChain_l(sessionId); 1545 if (chain != 0) { 1546 ALOGV("createTrack_l() setting main buffer %p", chain->inBuffer()); 1547 track->setMainBuffer(chain->inBuffer()); 1548 chain->setStrategy(AudioSystem::getStrategyForStream((audio_stream_type_t)track->type())); 1549 chain->incTrackCnt(); 1550 } 1551 1552 // invalidate track immediately if the stream type was moved to another thread since 1553 // createTrack() was called by the client process. 1554 if (!mStreamTypes[streamType].valid) { 1555 LOGW("createTrack_l() on thread %p: invalidating track on stream %d", 1556 this, streamType); 1557 android_atomic_or(CBLK_INVALID_ON, &track->mCblk->flags); 1558 } 1559 } 1560 lStatus = NO_ERROR; 1561 1562Exit: 1563 if(status) { 1564 *status = lStatus; 1565 } 1566 return track; 1567} 1568 1569uint32_t AudioFlinger::PlaybackThread::latency() const 1570{ 1571 Mutex::Autolock _l(mLock); 1572 if (initCheck() == NO_ERROR) { 1573 return mOutput->stream->get_latency(mOutput->stream); 1574 } else { 1575 return 0; 1576 } 1577} 1578 1579status_t AudioFlinger::PlaybackThread::setMasterVolume(float value) 1580{ 1581 mMasterVolume = value; 1582 return NO_ERROR; 1583} 1584 1585status_t AudioFlinger::PlaybackThread::setMasterMute(bool muted) 1586{ 1587 mMasterMute = muted; 1588 return NO_ERROR; 1589} 1590 1591float AudioFlinger::PlaybackThread::masterVolume() const 1592{ 1593 return mMasterVolume; 1594} 1595 1596bool AudioFlinger::PlaybackThread::masterMute() const 1597{ 1598 return mMasterMute; 1599} 1600 1601status_t AudioFlinger::PlaybackThread::setStreamVolume(int stream, float value) 1602{ 1603 mStreamTypes[stream].volume = value; 1604 return NO_ERROR; 1605} 1606 1607status_t AudioFlinger::PlaybackThread::setStreamMute(int stream, bool muted) 1608{ 1609 mStreamTypes[stream].mute = muted; 1610 return NO_ERROR; 1611} 1612 1613float AudioFlinger::PlaybackThread::streamVolume(int stream) const 1614{ 1615 return mStreamTypes[stream].volume; 1616} 1617 1618bool AudioFlinger::PlaybackThread::streamMute(int stream) const 1619{ 1620 return mStreamTypes[stream].mute; 1621} 1622 1623// addTrack_l() must be called with ThreadBase::mLock held 1624status_t AudioFlinger::PlaybackThread::addTrack_l(const sp<Track>& track) 1625{ 1626 status_t status = ALREADY_EXISTS; 1627 1628 // set retry count for buffer fill 1629 track->mRetryCount = kMaxTrackStartupRetries; 1630 if (mActiveTracks.indexOf(track) < 0) { 1631 // the track is newly added, make sure it fills up all its 1632 // buffers before playing. This is to ensure the client will 1633 // effectively get the latency it requested. 1634 track->mFillingUpStatus = Track::FS_FILLING; 1635 track->mResetDone = false; 1636 mActiveTracks.add(track); 1637 if (track->mainBuffer() != mMixBuffer) { 1638 sp<EffectChain> chain = getEffectChain_l(track->sessionId()); 1639 if (chain != 0) { 1640 ALOGV("addTrack_l() starting track on chain %p for session %d", chain.get(), track->sessionId()); 1641 chain->incActiveTrackCnt(); 1642 } 1643 } 1644 1645 status = NO_ERROR; 1646 } 1647 1648 ALOGV("mWaitWorkCV.broadcast"); 1649 mWaitWorkCV.broadcast(); 1650 1651 return status; 1652} 1653 1654// destroyTrack_l() must be called with ThreadBase::mLock held 1655void AudioFlinger::PlaybackThread::destroyTrack_l(const sp<Track>& track) 1656{ 1657 track->mState = TrackBase::TERMINATED; 1658 if (mActiveTracks.indexOf(track) < 0) { 1659 removeTrack_l(track); 1660 } 1661} 1662 1663void AudioFlinger::PlaybackThread::removeTrack_l(const sp<Track>& track) 1664{ 1665 mTracks.remove(track); 1666 deleteTrackName_l(track->name()); 1667 sp<EffectChain> chain = getEffectChain_l(track->sessionId()); 1668 if (chain != 0) { 1669 chain->decTrackCnt(); 1670 } 1671} 1672 1673String8 AudioFlinger::PlaybackThread::getParameters(const String8& keys) 1674{ 1675 String8 out_s8 = String8(""); 1676 char *s; 1677 1678 Mutex::Autolock _l(mLock); 1679 if (initCheck() != NO_ERROR) { 1680 return out_s8; 1681 } 1682 1683 s = mOutput->stream->common.get_parameters(&mOutput->stream->common, keys.string()); 1684 out_s8 = String8(s); 1685 free(s); 1686 return out_s8; 1687} 1688 1689// audioConfigChanged_l() must be called with AudioFlinger::mLock held 1690void AudioFlinger::PlaybackThread::audioConfigChanged_l(int event, int param) { 1691 AudioSystem::OutputDescriptor desc; 1692 void *param2 = 0; 1693 1694 ALOGV("PlaybackThread::audioConfigChanged_l, thread %p, event %d, param %d", this, event, param); 1695 1696 switch (event) { 1697 case AudioSystem::OUTPUT_OPENED: 1698 case AudioSystem::OUTPUT_CONFIG_CHANGED: 1699 desc.channels = mChannelMask; 1700 desc.samplingRate = mSampleRate; 1701 desc.format = mFormat; 1702 desc.frameCount = mFrameCount; 1703 desc.latency = latency(); 1704 param2 = &desc; 1705 break; 1706 1707 case AudioSystem::STREAM_CONFIG_CHANGED: 1708 param2 = ¶m; 1709 case AudioSystem::OUTPUT_CLOSED: 1710 default: 1711 break; 1712 } 1713 mAudioFlinger->audioConfigChanged_l(event, mId, param2); 1714} 1715 1716void AudioFlinger::PlaybackThread::readOutputParameters() 1717{ 1718 mSampleRate = mOutput->stream->common.get_sample_rate(&mOutput->stream->common); 1719 mChannelMask = mOutput->stream->common.get_channels(&mOutput->stream->common); 1720 mChannelCount = (uint16_t)popcount(mChannelMask); 1721 mFormat = mOutput->stream->common.get_format(&mOutput->stream->common); 1722 mFrameSize = (uint16_t)audio_stream_frame_size(&mOutput->stream->common); 1723 mFrameCount = mOutput->stream->common.get_buffer_size(&mOutput->stream->common) / mFrameSize; 1724 1725 // FIXME - Current mixer implementation only supports stereo output: Always 1726 // Allocate a stereo buffer even if HW output is mono. 1727 if (mMixBuffer != NULL) delete[] mMixBuffer; 1728 mMixBuffer = new int16_t[mFrameCount * 2]; 1729 memset(mMixBuffer, 0, mFrameCount * 2 * sizeof(int16_t)); 1730 1731 // force reconfiguration of effect chains and engines to take new buffer size and audio 1732 // parameters into account 1733 // Note that mLock is not held when readOutputParameters() is called from the constructor 1734 // but in this case nothing is done below as no audio sessions have effect yet so it doesn't 1735 // matter. 1736 // create a copy of mEffectChains as calling moveEffectChain_l() can reorder some effect chains 1737 Vector< sp<EffectChain> > effectChains = mEffectChains; 1738 for (size_t i = 0; i < effectChains.size(); i ++) { 1739 mAudioFlinger->moveEffectChain_l(effectChains[i]->sessionId(), this, this, false); 1740 } 1741} 1742 1743status_t AudioFlinger::PlaybackThread::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames) 1744{ 1745 if (halFrames == 0 || dspFrames == 0) { 1746 return BAD_VALUE; 1747 } 1748 Mutex::Autolock _l(mLock); 1749 if (initCheck() != NO_ERROR) { 1750 return INVALID_OPERATION; 1751 } 1752 *halFrames = mBytesWritten / audio_stream_frame_size(&mOutput->stream->common); 1753 1754 return mOutput->stream->get_render_position(mOutput->stream, dspFrames); 1755} 1756 1757uint32_t AudioFlinger::PlaybackThread::hasAudioSession(int sessionId) 1758{ 1759 Mutex::Autolock _l(mLock); 1760 uint32_t result = 0; 1761 if (getEffectChain_l(sessionId) != 0) { 1762 result = EFFECT_SESSION; 1763 } 1764 1765 for (size_t i = 0; i < mTracks.size(); ++i) { 1766 sp<Track> track = mTracks[i]; 1767 if (sessionId == track->sessionId() && 1768 !(track->mCblk->flags & CBLK_INVALID_MSK)) { 1769 result |= TRACK_SESSION; 1770 break; 1771 } 1772 } 1773 1774 return result; 1775} 1776 1777uint32_t AudioFlinger::PlaybackThread::getStrategyForSession_l(int sessionId) 1778{ 1779 // session AUDIO_SESSION_OUTPUT_MIX is placed in same strategy as MUSIC stream so that 1780 // it is moved to correct output by audio policy manager when A2DP is connected or disconnected 1781 if (sessionId == AUDIO_SESSION_OUTPUT_MIX) { 1782 return AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC); 1783 } 1784 for (size_t i = 0; i < mTracks.size(); i++) { 1785 sp<Track> track = mTracks[i]; 1786 if (sessionId == track->sessionId() && 1787 !(track->mCblk->flags & CBLK_INVALID_MSK)) { 1788 return AudioSystem::getStrategyForStream((audio_stream_type_t) track->type()); 1789 } 1790 } 1791 return AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC); 1792} 1793 1794 1795AudioFlinger::AudioStreamOut* AudioFlinger::PlaybackThread::getOutput() 1796{ 1797 Mutex::Autolock _l(mLock); 1798 return mOutput; 1799} 1800 1801AudioFlinger::AudioStreamOut* AudioFlinger::PlaybackThread::clearOutput() 1802{ 1803 Mutex::Autolock _l(mLock); 1804 AudioStreamOut *output = mOutput; 1805 mOutput = NULL; 1806 return output; 1807} 1808 1809// this method must always be called either with ThreadBase mLock held or inside the thread loop 1810audio_stream_t* AudioFlinger::PlaybackThread::stream() 1811{ 1812 if (mOutput == NULL) { 1813 return NULL; 1814 } 1815 return &mOutput->stream->common; 1816} 1817 1818uint32_t AudioFlinger::PlaybackThread::activeSleepTimeUs() 1819{ 1820 // A2DP output latency is not due only to buffering capacity. It also reflects encoding, 1821 // decoding and transfer time. So sleeping for half of the latency would likely cause 1822 // underruns 1823 if (audio_is_a2dp_device((audio_devices_t)mDevice)) { 1824 return (uint32_t)((uint32_t)((mFrameCount * 1000) / mSampleRate) * 1000); 1825 } else { 1826 return (uint32_t)(mOutput->stream->get_latency(mOutput->stream) * 1000) / 2; 1827 } 1828} 1829 1830// ---------------------------------------------------------------------------- 1831 1832AudioFlinger::MixerThread::MixerThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device) 1833 : PlaybackThread(audioFlinger, output, id, device), 1834 mAudioMixer(0) 1835{ 1836 mType = ThreadBase::MIXER; 1837 mAudioMixer = new AudioMixer(mFrameCount, mSampleRate); 1838 1839 // FIXME - Current mixer implementation only supports stereo output 1840 if (mChannelCount == 1) { 1841 LOGE("Invalid audio hardware channel count"); 1842 } 1843} 1844 1845AudioFlinger::MixerThread::~MixerThread() 1846{ 1847 delete mAudioMixer; 1848} 1849 1850bool AudioFlinger::MixerThread::threadLoop() 1851{ 1852 Vector< sp<Track> > tracksToRemove; 1853 uint32_t mixerStatus = MIXER_IDLE; 1854 nsecs_t standbyTime = systemTime(); 1855 size_t mixBufferSize = mFrameCount * mFrameSize; 1856 // FIXME: Relaxed timing because of a certain device that can't meet latency 1857 // Should be reduced to 2x after the vendor fixes the driver issue 1858 // increase threshold again due to low power audio mode. The way this warning threshold is 1859 // calculated and its usefulness should be reconsidered anyway. 1860 nsecs_t maxPeriod = seconds(mFrameCount) / mSampleRate * 15; 1861 nsecs_t lastWarning = 0; 1862 bool longStandbyExit = false; 1863 uint32_t activeSleepTime = activeSleepTimeUs(); 1864 uint32_t idleSleepTime = idleSleepTimeUs(); 1865 uint32_t sleepTime = idleSleepTime; 1866 uint32_t sleepTimeShift = 0; 1867 Vector< sp<EffectChain> > effectChains; 1868#ifdef DEBUG_CPU_USAGE 1869 ThreadCpuUsage cpu; 1870 const CentralTendencyStatistics& stats = cpu.statistics(); 1871#endif 1872 1873 acquireWakeLock(); 1874 1875 while (!exitPending()) 1876 { 1877#ifdef DEBUG_CPU_USAGE 1878 cpu.sampleAndEnable(); 1879 unsigned n = stats.n(); 1880 // cpu.elapsed() is expensive, so don't call it every loop 1881 if ((n & 127) == 1) { 1882 long long elapsed = cpu.elapsed(); 1883 if (elapsed >= DEBUG_CPU_USAGE * 1000000000LL) { 1884 double perLoop = elapsed / (double) n; 1885 double perLoop100 = perLoop * 0.01; 1886 double mean = stats.mean(); 1887 double stddev = stats.stddev(); 1888 double minimum = stats.minimum(); 1889 double maximum = stats.maximum(); 1890 cpu.resetStatistics(); 1891 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", 1892 elapsed * .000000001, n, perLoop * .000001, 1893 mean * .001, 1894 stddev * .001, 1895 minimum * .001, 1896 maximum * .001, 1897 mean / perLoop100, 1898 stddev / perLoop100, 1899 minimum / perLoop100, 1900 maximum / perLoop100); 1901 } 1902 } 1903#endif 1904 processConfigEvents(); 1905 1906 mixerStatus = MIXER_IDLE; 1907 { // scope for mLock 1908 1909 Mutex::Autolock _l(mLock); 1910 1911 if (checkForNewParameters_l()) { 1912 mixBufferSize = mFrameCount * mFrameSize; 1913 // FIXME: Relaxed timing because of a certain device that can't meet latency 1914 // Should be reduced to 2x after the vendor fixes the driver issue 1915 // increase threshold again due to low power audio mode. The way this warning 1916 // threshold is calculated and its usefulness should be reconsidered anyway. 1917 maxPeriod = seconds(mFrameCount) / mSampleRate * 15; 1918 activeSleepTime = activeSleepTimeUs(); 1919 idleSleepTime = idleSleepTimeUs(); 1920 } 1921 1922 const SortedVector< wp<Track> >& activeTracks = mActiveTracks; 1923 1924 // put audio hardware into standby after short delay 1925 if UNLIKELY((!activeTracks.size() && systemTime() > standbyTime) || 1926 mSuspended) { 1927 if (!mStandby) { 1928 ALOGV("Audio hardware entering standby, mixer %p, mSuspended %d\n", this, mSuspended); 1929 mOutput->stream->common.standby(&mOutput->stream->common); 1930 mStandby = true; 1931 mBytesWritten = 0; 1932 } 1933 1934 if (!activeTracks.size() && mConfigEvents.isEmpty()) { 1935 // we're about to wait, flush the binder command buffer 1936 IPCThreadState::self()->flushCommands(); 1937 1938 if (exitPending()) break; 1939 1940 releaseWakeLock_l(); 1941 // wait until we have something to do... 1942 ALOGV("MixerThread %p TID %d going to sleep\n", this, gettid()); 1943 mWaitWorkCV.wait(mLock); 1944 ALOGV("MixerThread %p TID %d waking up\n", this, gettid()); 1945 acquireWakeLock_l(); 1946 1947 if (mMasterMute == false) { 1948 char value[PROPERTY_VALUE_MAX]; 1949 property_get("ro.audio.silent", value, "0"); 1950 if (atoi(value)) { 1951 LOGD("Silence is golden"); 1952 setMasterMute(true); 1953 } 1954 } 1955 1956 standbyTime = systemTime() + kStandbyTimeInNsecs; 1957 sleepTime = idleSleepTime; 1958 sleepTimeShift = 0; 1959 continue; 1960 } 1961 } 1962 1963 mixerStatus = prepareTracks_l(activeTracks, &tracksToRemove); 1964 1965 // prevent any changes in effect chain list and in each effect chain 1966 // during mixing and effect process as the audio buffers could be deleted 1967 // or modified if an effect is created or deleted 1968 lockEffectChains_l(effectChains); 1969 } 1970 1971 if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) { 1972 // mix buffers... 1973 mAudioMixer->process(); 1974 sleepTime = 0; 1975 // increase sleep time progressively when application underrun condition clears 1976 if (sleepTimeShift > 0) { 1977 sleepTimeShift--; 1978 } 1979 standbyTime = systemTime() + kStandbyTimeInNsecs; 1980 //TODO: delay standby when effects have a tail 1981 } else { 1982 // If no tracks are ready, sleep once for the duration of an output 1983 // buffer size, then write 0s to the output 1984 if (sleepTime == 0) { 1985 if (mixerStatus == MIXER_TRACKS_ENABLED) { 1986 sleepTime = activeSleepTime >> sleepTimeShift; 1987 if (sleepTime < kMinThreadSleepTimeUs) { 1988 sleepTime = kMinThreadSleepTimeUs; 1989 } 1990 // reduce sleep time in case of consecutive application underruns to avoid 1991 // starving the audio HAL. As activeSleepTimeUs() is larger than a buffer 1992 // duration we would end up writing less data than needed by the audio HAL if 1993 // the condition persists. 1994 if (sleepTimeShift < kMaxThreadSleepTimeShift) { 1995 sleepTimeShift++; 1996 } 1997 } else { 1998 sleepTime = idleSleepTime; 1999 } 2000 } else if (mBytesWritten != 0 || 2001 (mixerStatus == MIXER_TRACKS_ENABLED && longStandbyExit)) { 2002 memset (mMixBuffer, 0, mixBufferSize); 2003 sleepTime = 0; 2004 ALOGV_IF((mBytesWritten == 0 && (mixerStatus == MIXER_TRACKS_ENABLED && longStandbyExit)), "anticipated start"); 2005 } 2006 // TODO add standby time extension fct of effect tail 2007 } 2008 2009 if (mSuspended) { 2010 sleepTime = suspendSleepTimeUs(); 2011 } 2012 // sleepTime == 0 means we must write to audio hardware 2013 if (sleepTime == 0) { 2014 for (size_t i = 0; i < effectChains.size(); i ++) { 2015 effectChains[i]->process_l(); 2016 } 2017 // enable changes in effect chain 2018 unlockEffectChains(effectChains); 2019 mLastWriteTime = systemTime(); 2020 mInWrite = true; 2021 mBytesWritten += mixBufferSize; 2022 2023 int bytesWritten = (int)mOutput->stream->write(mOutput->stream, mMixBuffer, mixBufferSize); 2024 if (bytesWritten < 0) mBytesWritten -= mixBufferSize; 2025 mNumWrites++; 2026 mInWrite = false; 2027 nsecs_t now = systemTime(); 2028 nsecs_t delta = now - mLastWriteTime; 2029 if (!mStandby && delta > maxPeriod) { 2030 mNumDelayedWrites++; 2031 if ((now - lastWarning) > kWarningThrottle) { 2032 LOGW("write blocked for %llu msecs, %d delayed writes, thread %p", 2033 ns2ms(delta), mNumDelayedWrites, this); 2034 lastWarning = now; 2035 } 2036 if (mStandby) { 2037 longStandbyExit = true; 2038 } 2039 } 2040 mStandby = false; 2041 } else { 2042 // enable changes in effect chain 2043 unlockEffectChains(effectChains); 2044 usleep(sleepTime); 2045 } 2046 2047 // finally let go of all our tracks, without the lock held 2048 // since we can't guarantee the destructors won't acquire that 2049 // same lock. 2050 tracksToRemove.clear(); 2051 2052 // Effect chains will be actually deleted here if they were removed from 2053 // mEffectChains list during mixing or effects processing 2054 effectChains.clear(); 2055 } 2056 2057 if (!mStandby) { 2058 mOutput->stream->common.standby(&mOutput->stream->common); 2059 } 2060 2061 releaseWakeLock(); 2062 2063 ALOGV("MixerThread %p exiting", this); 2064 return false; 2065} 2066 2067// prepareTracks_l() must be called with ThreadBase::mLock held 2068uint32_t AudioFlinger::MixerThread::prepareTracks_l(const SortedVector< wp<Track> >& activeTracks, Vector< sp<Track> > *tracksToRemove) 2069{ 2070 2071 uint32_t mixerStatus = MIXER_IDLE; 2072 // find out which tracks need to be processed 2073 size_t count = activeTracks.size(); 2074 size_t mixedTracks = 0; 2075 size_t tracksWithEffect = 0; 2076 2077 float masterVolume = mMasterVolume; 2078 bool masterMute = mMasterMute; 2079 2080 if (masterMute) { 2081 masterVolume = 0; 2082 } 2083 // Delegate master volume control to effect in output mix effect chain if needed 2084 sp<EffectChain> chain = getEffectChain_l(AUDIO_SESSION_OUTPUT_MIX); 2085 if (chain != 0) { 2086 uint32_t v = (uint32_t)(masterVolume * (1 << 24)); 2087 chain->setVolume_l(&v, &v); 2088 masterVolume = (float)((v + (1 << 23)) >> 24); 2089 chain.clear(); 2090 } 2091 2092 for (size_t i=0 ; i<count ; i++) { 2093 sp<Track> t = activeTracks[i].promote(); 2094 if (t == 0) continue; 2095 2096 Track* const track = t.get(); 2097 audio_track_cblk_t* cblk = track->cblk(); 2098 2099 // The first time a track is added we wait 2100 // for all its buffers to be filled before processing it 2101 mAudioMixer->setActiveTrack(track->name()); 2102 // make sure that we have enough frames to mix one full buffer. 2103 // enforce this condition only once to enable draining the buffer in case the client 2104 // app does not call stop() and relies on underrun to stop: 2105 // hence the test on (track->mRetryCount >= kMaxTrackRetries) meaning the track was mixed 2106 // during last round 2107 uint32_t minFrames = 1; 2108 if (!track->isStopped() && !track->isPausing() && 2109 (track->mRetryCount >= kMaxTrackRetries)) { 2110 if (t->sampleRate() == (int)mSampleRate) { 2111 minFrames = mFrameCount; 2112 } else { 2113 minFrames = (mFrameCount * t->sampleRate()) / mSampleRate + 1; 2114 } 2115 } 2116 if ((cblk->framesReady() >= minFrames) && track->isReady() && 2117 !track->isPaused() && !track->isTerminated()) 2118 { 2119 //ALOGV("track %d u=%08x, s=%08x [OK] on thread %p", track->name(), cblk->user, cblk->server, this); 2120 2121 mixedTracks++; 2122 2123 // track->mainBuffer() != mMixBuffer means there is an effect chain 2124 // connected to the track 2125 chain.clear(); 2126 if (track->mainBuffer() != mMixBuffer) { 2127 chain = getEffectChain_l(track->sessionId()); 2128 // Delegate volume control to effect in track effect chain if needed 2129 if (chain != 0) { 2130 tracksWithEffect++; 2131 } else { 2132 LOGW("prepareTracks_l(): track %08x attached to effect but no chain found on session %d", 2133 track->name(), track->sessionId()); 2134 } 2135 } 2136 2137 2138 int param = AudioMixer::VOLUME; 2139 if (track->mFillingUpStatus == Track::FS_FILLED) { 2140 // no ramp for the first volume setting 2141 track->mFillingUpStatus = Track::FS_ACTIVE; 2142 if (track->mState == TrackBase::RESUMING) { 2143 track->mState = TrackBase::ACTIVE; 2144 param = AudioMixer::RAMP_VOLUME; 2145 } 2146 mAudioMixer->setParameter(AudioMixer::RESAMPLE, AudioMixer::RESET, NULL); 2147 } else if (cblk->server != 0) { 2148 // If the track is stopped before the first frame was mixed, 2149 // do not apply ramp 2150 param = AudioMixer::RAMP_VOLUME; 2151 } 2152 2153 // compute volume for this track 2154 uint32_t vl, vr, va; 2155 if (track->isMuted() || track->isPausing() || 2156 mStreamTypes[track->type()].mute) { 2157 vl = vr = va = 0; 2158 if (track->isPausing()) { 2159 track->setPaused(); 2160 } 2161 } else { 2162 2163 // read original volumes with volume control 2164 float typeVolume = mStreamTypes[track->type()].volume; 2165 float v = masterVolume * typeVolume; 2166 vl = (uint32_t)(v * cblk->volume[0]) << 12; 2167 vr = (uint32_t)(v * cblk->volume[1]) << 12; 2168 2169 va = (uint32_t)(v * cblk->sendLevel); 2170 } 2171 // Delegate volume control to effect in track effect chain if needed 2172 if (chain != 0 && chain->setVolume_l(&vl, &vr)) { 2173 // Do not ramp volume if volume is controlled by effect 2174 param = AudioMixer::VOLUME; 2175 track->mHasVolumeController = true; 2176 } else { 2177 // force no volume ramp when volume controller was just disabled or removed 2178 // from effect chain to avoid volume spike 2179 if (track->mHasVolumeController) { 2180 param = AudioMixer::VOLUME; 2181 } 2182 track->mHasVolumeController = false; 2183 } 2184 2185 // Convert volumes from 8.24 to 4.12 format 2186 int16_t left, right, aux; 2187 uint32_t v_clamped = (vl + (1 << 11)) >> 12; 2188 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2189 left = int16_t(v_clamped); 2190 v_clamped = (vr + (1 << 11)) >> 12; 2191 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2192 right = int16_t(v_clamped); 2193 2194 if (va > MAX_GAIN_INT) va = MAX_GAIN_INT; 2195 aux = int16_t(va); 2196 2197 // XXX: these things DON'T need to be done each time 2198 mAudioMixer->setBufferProvider(track); 2199 mAudioMixer->enable(AudioMixer::MIXING); 2200 2201 mAudioMixer->setParameter(param, AudioMixer::VOLUME0, (void *)left); 2202 mAudioMixer->setParameter(param, AudioMixer::VOLUME1, (void *)right); 2203 mAudioMixer->setParameter(param, AudioMixer::AUXLEVEL, (void *)aux); 2204 mAudioMixer->setParameter( 2205 AudioMixer::TRACK, 2206 AudioMixer::FORMAT, (void *)track->format()); 2207 mAudioMixer->setParameter( 2208 AudioMixer::TRACK, 2209 AudioMixer::CHANNEL_MASK, (void *)track->channelMask()); 2210 mAudioMixer->setParameter( 2211 AudioMixer::RESAMPLE, 2212 AudioMixer::SAMPLE_RATE, 2213 (void *)(cblk->sampleRate)); 2214 mAudioMixer->setParameter( 2215 AudioMixer::TRACK, 2216 AudioMixer::MAIN_BUFFER, (void *)track->mainBuffer()); 2217 mAudioMixer->setParameter( 2218 AudioMixer::TRACK, 2219 AudioMixer::AUX_BUFFER, (void *)track->auxBuffer()); 2220 2221 // reset retry count 2222 track->mRetryCount = kMaxTrackRetries; 2223 mixerStatus = MIXER_TRACKS_READY; 2224 } else { 2225 //ALOGV("track %d u=%08x, s=%08x [NOT READY] on thread %p", track->name(), cblk->user, cblk->server, this); 2226 if (track->isStopped()) { 2227 track->reset(); 2228 } 2229 if (track->isTerminated() || track->isStopped() || track->isPaused()) { 2230 // We have consumed all the buffers of this track. 2231 // Remove it from the list of active tracks. 2232 tracksToRemove->add(track); 2233 } else { 2234 // No buffers for this track. Give it a few chances to 2235 // fill a buffer, then remove it from active list. 2236 if (--(track->mRetryCount) <= 0) { 2237 ALOGV("BUFFER TIMEOUT: remove(%d) from active list on thread %p", track->name(), this); 2238 tracksToRemove->add(track); 2239 // indicate to client process that the track was disabled because of underrun 2240 android_atomic_or(CBLK_DISABLED_ON, &cblk->flags); 2241 } else if (mixerStatus != MIXER_TRACKS_READY) { 2242 mixerStatus = MIXER_TRACKS_ENABLED; 2243 } 2244 } 2245 mAudioMixer->disable(AudioMixer::MIXING); 2246 } 2247 } 2248 2249 // remove all the tracks that need to be... 2250 count = tracksToRemove->size(); 2251 if (UNLIKELY(count)) { 2252 for (size_t i=0 ; i<count ; i++) { 2253 const sp<Track>& track = tracksToRemove->itemAt(i); 2254 mActiveTracks.remove(track); 2255 if (track->mainBuffer() != mMixBuffer) { 2256 chain = getEffectChain_l(track->sessionId()); 2257 if (chain != 0) { 2258 ALOGV("stopping track on chain %p for session Id: %d", chain.get(), track->sessionId()); 2259 chain->decActiveTrackCnt(); 2260 } 2261 } 2262 if (track->isTerminated()) { 2263 removeTrack_l(track); 2264 } 2265 } 2266 } 2267 2268 // mix buffer must be cleared if all tracks are connected to an 2269 // effect chain as in this case the mixer will not write to 2270 // mix buffer and track effects will accumulate into it 2271 if (mixedTracks != 0 && mixedTracks == tracksWithEffect) { 2272 memset(mMixBuffer, 0, mFrameCount * mChannelCount * sizeof(int16_t)); 2273 } 2274 2275 return mixerStatus; 2276} 2277 2278void AudioFlinger::MixerThread::invalidateTracks(int streamType) 2279{ 2280 ALOGV ("MixerThread::invalidateTracks() mixer %p, streamType %d, mTracks.size %d", 2281 this, streamType, mTracks.size()); 2282 Mutex::Autolock _l(mLock); 2283 2284 size_t size = mTracks.size(); 2285 for (size_t i = 0; i < size; i++) { 2286 sp<Track> t = mTracks[i]; 2287 if (t->type() == streamType) { 2288 android_atomic_or(CBLK_INVALID_ON, &t->mCblk->flags); 2289 t->mCblk->cv.signal(); 2290 } 2291 } 2292} 2293 2294void AudioFlinger::PlaybackThread::setStreamValid(int streamType, bool valid) 2295{ 2296 ALOGV ("PlaybackThread::setStreamValid() thread %p, streamType %d, valid %d", 2297 this, streamType, valid); 2298 Mutex::Autolock _l(mLock); 2299 2300 mStreamTypes[streamType].valid = valid; 2301} 2302 2303// getTrackName_l() must be called with ThreadBase::mLock held 2304int AudioFlinger::MixerThread::getTrackName_l() 2305{ 2306 return mAudioMixer->getTrackName(); 2307} 2308 2309// deleteTrackName_l() must be called with ThreadBase::mLock held 2310void AudioFlinger::MixerThread::deleteTrackName_l(int name) 2311{ 2312 ALOGV("remove track (%d) and delete from mixer", name); 2313 mAudioMixer->deleteTrackName(name); 2314} 2315 2316// checkForNewParameters_l() must be called with ThreadBase::mLock held 2317bool AudioFlinger::MixerThread::checkForNewParameters_l() 2318{ 2319 bool reconfig = false; 2320 2321 while (!mNewParameters.isEmpty()) { 2322 status_t status = NO_ERROR; 2323 String8 keyValuePair = mNewParameters[0]; 2324 AudioParameter param = AudioParameter(keyValuePair); 2325 int value; 2326 2327 if (param.getInt(String8(AudioParameter::keySamplingRate), value) == NO_ERROR) { 2328 reconfig = true; 2329 } 2330 if (param.getInt(String8(AudioParameter::keyFormat), value) == NO_ERROR) { 2331 if (value != AUDIO_FORMAT_PCM_16_BIT) { 2332 status = BAD_VALUE; 2333 } else { 2334 reconfig = true; 2335 } 2336 } 2337 if (param.getInt(String8(AudioParameter::keyChannels), value) == NO_ERROR) { 2338 if (value != AUDIO_CHANNEL_OUT_STEREO) { 2339 status = BAD_VALUE; 2340 } else { 2341 reconfig = true; 2342 } 2343 } 2344 if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) { 2345 // do not accept frame count changes if tracks are open as the track buffer 2346 // size depends on frame count and correct behavior would not be garantied 2347 // if frame count is changed after track creation 2348 if (!mTracks.isEmpty()) { 2349 status = INVALID_OPERATION; 2350 } else { 2351 reconfig = true; 2352 } 2353 } 2354 if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) { 2355 // when changing the audio output device, call addBatteryData to notify 2356 // the change 2357 if ((int)mDevice != value) { 2358 uint32_t params = 0; 2359 // check whether speaker is on 2360 if (value & AUDIO_DEVICE_OUT_SPEAKER) { 2361 params |= IMediaPlayerService::kBatteryDataSpeakerOn; 2362 } 2363 2364 int deviceWithoutSpeaker 2365 = AUDIO_DEVICE_OUT_ALL & ~AUDIO_DEVICE_OUT_SPEAKER; 2366 // check if any other device (except speaker) is on 2367 if (value & deviceWithoutSpeaker ) { 2368 params |= IMediaPlayerService::kBatteryDataOtherAudioDeviceOn; 2369 } 2370 2371 if (params != 0) { 2372 addBatteryData(params); 2373 } 2374 } 2375 2376 // forward device change to effects that have requested to be 2377 // aware of attached audio device. 2378 mDevice = (uint32_t)value; 2379 for (size_t i = 0; i < mEffectChains.size(); i++) { 2380 mEffectChains[i]->setDevice_l(mDevice); 2381 } 2382 } 2383 2384 if (status == NO_ERROR) { 2385 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2386 keyValuePair.string()); 2387 if (!mStandby && status == INVALID_OPERATION) { 2388 mOutput->stream->common.standby(&mOutput->stream->common); 2389 mStandby = true; 2390 mBytesWritten = 0; 2391 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2392 keyValuePair.string()); 2393 } 2394 if (status == NO_ERROR && reconfig) { 2395 delete mAudioMixer; 2396 readOutputParameters(); 2397 mAudioMixer = new AudioMixer(mFrameCount, mSampleRate); 2398 for (size_t i = 0; i < mTracks.size() ; i++) { 2399 int name = getTrackName_l(); 2400 if (name < 0) break; 2401 mTracks[i]->mName = name; 2402 // limit track sample rate to 2 x new output sample rate 2403 if (mTracks[i]->mCblk->sampleRate > 2 * sampleRate()) { 2404 mTracks[i]->mCblk->sampleRate = 2 * sampleRate(); 2405 } 2406 } 2407 sendConfigEvent_l(AudioSystem::OUTPUT_CONFIG_CHANGED); 2408 } 2409 } 2410 2411 mNewParameters.removeAt(0); 2412 2413 mParamStatus = status; 2414 mParamCond.signal(); 2415 // wait for condition with time out in case the thread calling ThreadBase::setParameters() 2416 // already timed out waiting for the status and will never signal the condition. 2417 mWaitWorkCV.waitRelative(mLock, kSetParametersTimeout); 2418 } 2419 return reconfig; 2420} 2421 2422status_t AudioFlinger::MixerThread::dumpInternals(int fd, const Vector<String16>& args) 2423{ 2424 const size_t SIZE = 256; 2425 char buffer[SIZE]; 2426 String8 result; 2427 2428 PlaybackThread::dumpInternals(fd, args); 2429 2430 snprintf(buffer, SIZE, "AudioMixer tracks: %08x\n", mAudioMixer->trackNames()); 2431 result.append(buffer); 2432 write(fd, result.string(), result.size()); 2433 return NO_ERROR; 2434} 2435 2436uint32_t AudioFlinger::MixerThread::idleSleepTimeUs() 2437{ 2438 return (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000) / 2; 2439} 2440 2441uint32_t AudioFlinger::MixerThread::suspendSleepTimeUs() 2442{ 2443 return (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000); 2444} 2445 2446// ---------------------------------------------------------------------------- 2447AudioFlinger::DirectOutputThread::DirectOutputThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device) 2448 : PlaybackThread(audioFlinger, output, id, device) 2449{ 2450 mType = ThreadBase::DIRECT; 2451} 2452 2453AudioFlinger::DirectOutputThread::~DirectOutputThread() 2454{ 2455} 2456 2457 2458static inline int16_t clamp16(int32_t sample) 2459{ 2460 if ((sample>>15) ^ (sample>>31)) 2461 sample = 0x7FFF ^ (sample>>31); 2462 return sample; 2463} 2464 2465static inline 2466int32_t mul(int16_t in, int16_t v) 2467{ 2468#if defined(__arm__) && !defined(__thumb__) 2469 int32_t out; 2470 asm( "smulbb %[out], %[in], %[v] \n" 2471 : [out]"=r"(out) 2472 : [in]"%r"(in), [v]"r"(v) 2473 : ); 2474 return out; 2475#else 2476 return in * int32_t(v); 2477#endif 2478} 2479 2480void AudioFlinger::DirectOutputThread::applyVolume(uint16_t leftVol, uint16_t rightVol, bool ramp) 2481{ 2482 // Do not apply volume on compressed audio 2483 if (!audio_is_linear_pcm(mFormat)) { 2484 return; 2485 } 2486 2487 // convert to signed 16 bit before volume calculation 2488 if (mFormat == AUDIO_FORMAT_PCM_8_BIT) { 2489 size_t count = mFrameCount * mChannelCount; 2490 uint8_t *src = (uint8_t *)mMixBuffer + count-1; 2491 int16_t *dst = mMixBuffer + count-1; 2492 while(count--) { 2493 *dst-- = (int16_t)(*src--^0x80) << 8; 2494 } 2495 } 2496 2497 size_t frameCount = mFrameCount; 2498 int16_t *out = mMixBuffer; 2499 if (ramp) { 2500 if (mChannelCount == 1) { 2501 int32_t d = ((int32_t)leftVol - (int32_t)mLeftVolShort) << 16; 2502 int32_t vlInc = d / (int32_t)frameCount; 2503 int32_t vl = ((int32_t)mLeftVolShort << 16); 2504 do { 2505 out[0] = clamp16(mul(out[0], vl >> 16) >> 12); 2506 out++; 2507 vl += vlInc; 2508 } while (--frameCount); 2509 2510 } else { 2511 int32_t d = ((int32_t)leftVol - (int32_t)mLeftVolShort) << 16; 2512 int32_t vlInc = d / (int32_t)frameCount; 2513 d = ((int32_t)rightVol - (int32_t)mRightVolShort) << 16; 2514 int32_t vrInc = d / (int32_t)frameCount; 2515 int32_t vl = ((int32_t)mLeftVolShort << 16); 2516 int32_t vr = ((int32_t)mRightVolShort << 16); 2517 do { 2518 out[0] = clamp16(mul(out[0], vl >> 16) >> 12); 2519 out[1] = clamp16(mul(out[1], vr >> 16) >> 12); 2520 out += 2; 2521 vl += vlInc; 2522 vr += vrInc; 2523 } while (--frameCount); 2524 } 2525 } else { 2526 if (mChannelCount == 1) { 2527 do { 2528 out[0] = clamp16(mul(out[0], leftVol) >> 12); 2529 out++; 2530 } while (--frameCount); 2531 } else { 2532 do { 2533 out[0] = clamp16(mul(out[0], leftVol) >> 12); 2534 out[1] = clamp16(mul(out[1], rightVol) >> 12); 2535 out += 2; 2536 } while (--frameCount); 2537 } 2538 } 2539 2540 // convert back to unsigned 8 bit after volume calculation 2541 if (mFormat == AUDIO_FORMAT_PCM_8_BIT) { 2542 size_t count = mFrameCount * mChannelCount; 2543 int16_t *src = mMixBuffer; 2544 uint8_t *dst = (uint8_t *)mMixBuffer; 2545 while(count--) { 2546 *dst++ = (uint8_t)(((int32_t)*src++ + (1<<7)) >> 8)^0x80; 2547 } 2548 } 2549 2550 mLeftVolShort = leftVol; 2551 mRightVolShort = rightVol; 2552} 2553 2554bool AudioFlinger::DirectOutputThread::threadLoop() 2555{ 2556 uint32_t mixerStatus = MIXER_IDLE; 2557 sp<Track> trackToRemove; 2558 sp<Track> activeTrack; 2559 nsecs_t standbyTime = systemTime(); 2560 int8_t *curBuf; 2561 size_t mixBufferSize = mFrameCount*mFrameSize; 2562 uint32_t activeSleepTime = activeSleepTimeUs(); 2563 uint32_t idleSleepTime = idleSleepTimeUs(); 2564 uint32_t sleepTime = idleSleepTime; 2565 // use shorter standby delay as on normal output to release 2566 // hardware resources as soon as possible 2567 nsecs_t standbyDelay = microseconds(activeSleepTime*2); 2568 2569 acquireWakeLock(); 2570 2571 while (!exitPending()) 2572 { 2573 bool rampVolume; 2574 uint16_t leftVol; 2575 uint16_t rightVol; 2576 Vector< sp<EffectChain> > effectChains; 2577 2578 processConfigEvents(); 2579 2580 mixerStatus = MIXER_IDLE; 2581 2582 { // scope for the mLock 2583 2584 Mutex::Autolock _l(mLock); 2585 2586 if (checkForNewParameters_l()) { 2587 mixBufferSize = mFrameCount*mFrameSize; 2588 activeSleepTime = activeSleepTimeUs(); 2589 idleSleepTime = idleSleepTimeUs(); 2590 standbyDelay = microseconds(activeSleepTime*2); 2591 } 2592 2593 // put audio hardware into standby after short delay 2594 if UNLIKELY((!mActiveTracks.size() && systemTime() > standbyTime) || 2595 mSuspended) { 2596 // wait until we have something to do... 2597 if (!mStandby) { 2598 ALOGV("Audio hardware entering standby, mixer %p\n", this); 2599 mOutput->stream->common.standby(&mOutput->stream->common); 2600 mStandby = true; 2601 mBytesWritten = 0; 2602 } 2603 2604 if (!mActiveTracks.size() && mConfigEvents.isEmpty()) { 2605 // we're about to wait, flush the binder command buffer 2606 IPCThreadState::self()->flushCommands(); 2607 2608 if (exitPending()) break; 2609 2610 releaseWakeLock_l(); 2611 ALOGV("DirectOutputThread %p TID %d going to sleep\n", this, gettid()); 2612 mWaitWorkCV.wait(mLock); 2613 ALOGV("DirectOutputThread %p TID %d waking up in active mode\n", this, gettid()); 2614 acquireWakeLock_l(); 2615 2616 if (mMasterMute == false) { 2617 char value[PROPERTY_VALUE_MAX]; 2618 property_get("ro.audio.silent", value, "0"); 2619 if (atoi(value)) { 2620 LOGD("Silence is golden"); 2621 setMasterMute(true); 2622 } 2623 } 2624 2625 standbyTime = systemTime() + standbyDelay; 2626 sleepTime = idleSleepTime; 2627 continue; 2628 } 2629 } 2630 2631 effectChains = mEffectChains; 2632 2633 // find out which tracks need to be processed 2634 if (mActiveTracks.size() != 0) { 2635 sp<Track> t = mActiveTracks[0].promote(); 2636 if (t == 0) continue; 2637 2638 Track* const track = t.get(); 2639 audio_track_cblk_t* cblk = track->cblk(); 2640 2641 // The first time a track is added we wait 2642 // for all its buffers to be filled before processing it 2643 if (cblk->framesReady() && track->isReady() && 2644 !track->isPaused() && !track->isTerminated()) 2645 { 2646 //ALOGV("track %d u=%08x, s=%08x [OK]", track->name(), cblk->user, cblk->server); 2647 2648 if (track->mFillingUpStatus == Track::FS_FILLED) { 2649 track->mFillingUpStatus = Track::FS_ACTIVE; 2650 mLeftVolFloat = mRightVolFloat = 0; 2651 mLeftVolShort = mRightVolShort = 0; 2652 if (track->mState == TrackBase::RESUMING) { 2653 track->mState = TrackBase::ACTIVE; 2654 rampVolume = true; 2655 } 2656 } else if (cblk->server != 0) { 2657 // If the track is stopped before the first frame was mixed, 2658 // do not apply ramp 2659 rampVolume = true; 2660 } 2661 // compute volume for this track 2662 float left, right; 2663 if (track->isMuted() || mMasterMute || track->isPausing() || 2664 mStreamTypes[track->type()].mute) { 2665 left = right = 0; 2666 if (track->isPausing()) { 2667 track->setPaused(); 2668 } 2669 } else { 2670 float typeVolume = mStreamTypes[track->type()].volume; 2671 float v = mMasterVolume * typeVolume; 2672 float v_clamped = v * cblk->volume[0]; 2673 if (v_clamped > MAX_GAIN) v_clamped = MAX_GAIN; 2674 left = v_clamped/MAX_GAIN; 2675 v_clamped = v * cblk->volume[1]; 2676 if (v_clamped > MAX_GAIN) v_clamped = MAX_GAIN; 2677 right = v_clamped/MAX_GAIN; 2678 } 2679 2680 if (left != mLeftVolFloat || right != mRightVolFloat) { 2681 mLeftVolFloat = left; 2682 mRightVolFloat = right; 2683 2684 // If audio HAL implements volume control, 2685 // force software volume to nominal value 2686 if (mOutput->stream->set_volume(mOutput->stream, left, right) == NO_ERROR) { 2687 left = 1.0f; 2688 right = 1.0f; 2689 } 2690 2691 // Convert volumes from float to 8.24 2692 uint32_t vl = (uint32_t)(left * (1 << 24)); 2693 uint32_t vr = (uint32_t)(right * (1 << 24)); 2694 2695 // Delegate volume control to effect in track effect chain if needed 2696 // only one effect chain can be present on DirectOutputThread, so if 2697 // there is one, the track is connected to it 2698 if (!effectChains.isEmpty()) { 2699 // Do not ramp volume if volume is controlled by effect 2700 if(effectChains[0]->setVolume_l(&vl, &vr)) { 2701 rampVolume = false; 2702 } 2703 } 2704 2705 // Convert volumes from 8.24 to 4.12 format 2706 uint32_t v_clamped = (vl + (1 << 11)) >> 12; 2707 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2708 leftVol = (uint16_t)v_clamped; 2709 v_clamped = (vr + (1 << 11)) >> 12; 2710 if (v_clamped > MAX_GAIN_INT) v_clamped = MAX_GAIN_INT; 2711 rightVol = (uint16_t)v_clamped; 2712 } else { 2713 leftVol = mLeftVolShort; 2714 rightVol = mRightVolShort; 2715 rampVolume = false; 2716 } 2717 2718 // reset retry count 2719 track->mRetryCount = kMaxTrackRetriesDirect; 2720 activeTrack = t; 2721 mixerStatus = MIXER_TRACKS_READY; 2722 } else { 2723 //ALOGV("track %d u=%08x, s=%08x [NOT READY]", track->name(), cblk->user, cblk->server); 2724 if (track->isStopped()) { 2725 track->reset(); 2726 } 2727 if (track->isTerminated() || track->isStopped() || track->isPaused()) { 2728 // We have consumed all the buffers of this track. 2729 // Remove it from the list of active tracks. 2730 trackToRemove = track; 2731 } else { 2732 // No buffers for this track. Give it a few chances to 2733 // fill a buffer, then remove it from active list. 2734 if (--(track->mRetryCount) <= 0) { 2735 ALOGV("BUFFER TIMEOUT: remove(%d) from active list", track->name()); 2736 trackToRemove = track; 2737 } else { 2738 mixerStatus = MIXER_TRACKS_ENABLED; 2739 } 2740 } 2741 } 2742 } 2743 2744 // remove all the tracks that need to be... 2745 if (UNLIKELY(trackToRemove != 0)) { 2746 mActiveTracks.remove(trackToRemove); 2747 if (!effectChains.isEmpty()) { 2748 ALOGV("stopping track on chain %p for session Id: %d", effectChains[0].get(), 2749 trackToRemove->sessionId()); 2750 effectChains[0]->decActiveTrackCnt(); 2751 } 2752 if (trackToRemove->isTerminated()) { 2753 removeTrack_l(trackToRemove); 2754 } 2755 } 2756 2757 lockEffectChains_l(effectChains); 2758 } 2759 2760 if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) { 2761 AudioBufferProvider::Buffer buffer; 2762 size_t frameCount = mFrameCount; 2763 curBuf = (int8_t *)mMixBuffer; 2764 // output audio to hardware 2765 while (frameCount) { 2766 buffer.frameCount = frameCount; 2767 activeTrack->getNextBuffer(&buffer); 2768 if (UNLIKELY(buffer.raw == 0)) { 2769 memset(curBuf, 0, frameCount * mFrameSize); 2770 break; 2771 } 2772 memcpy(curBuf, buffer.raw, buffer.frameCount * mFrameSize); 2773 frameCount -= buffer.frameCount; 2774 curBuf += buffer.frameCount * mFrameSize; 2775 activeTrack->releaseBuffer(&buffer); 2776 } 2777 sleepTime = 0; 2778 standbyTime = systemTime() + standbyDelay; 2779 } else { 2780 if (sleepTime == 0) { 2781 if (mixerStatus == MIXER_TRACKS_ENABLED) { 2782 sleepTime = activeSleepTime; 2783 } else { 2784 sleepTime = idleSleepTime; 2785 } 2786 } else if (mBytesWritten != 0 && audio_is_linear_pcm(mFormat)) { 2787 memset (mMixBuffer, 0, mFrameCount * mFrameSize); 2788 sleepTime = 0; 2789 } 2790 } 2791 2792 if (mSuspended) { 2793 sleepTime = suspendSleepTimeUs(); 2794 } 2795 // sleepTime == 0 means we must write to audio hardware 2796 if (sleepTime == 0) { 2797 if (mixerStatus == MIXER_TRACKS_READY) { 2798 applyVolume(leftVol, rightVol, rampVolume); 2799 } 2800 for (size_t i = 0; i < effectChains.size(); i ++) { 2801 effectChains[i]->process_l(); 2802 } 2803 unlockEffectChains(effectChains); 2804 2805 mLastWriteTime = systemTime(); 2806 mInWrite = true; 2807 mBytesWritten += mixBufferSize; 2808 int bytesWritten = (int)mOutput->stream->write(mOutput->stream, mMixBuffer, mixBufferSize); 2809 if (bytesWritten < 0) mBytesWritten -= mixBufferSize; 2810 mNumWrites++; 2811 mInWrite = false; 2812 mStandby = false; 2813 } else { 2814 unlockEffectChains(effectChains); 2815 usleep(sleepTime); 2816 } 2817 2818 // finally let go of removed track, without the lock held 2819 // since we can't guarantee the destructors won't acquire that 2820 // same lock. 2821 trackToRemove.clear(); 2822 activeTrack.clear(); 2823 2824 // Effect chains will be actually deleted here if they were removed from 2825 // mEffectChains list during mixing or effects processing 2826 effectChains.clear(); 2827 } 2828 2829 if (!mStandby) { 2830 mOutput->stream->common.standby(&mOutput->stream->common); 2831 } 2832 2833 releaseWakeLock(); 2834 2835 ALOGV("DirectOutputThread %p exiting", this); 2836 return false; 2837} 2838 2839// getTrackName_l() must be called with ThreadBase::mLock held 2840int AudioFlinger::DirectOutputThread::getTrackName_l() 2841{ 2842 return 0; 2843} 2844 2845// deleteTrackName_l() must be called with ThreadBase::mLock held 2846void AudioFlinger::DirectOutputThread::deleteTrackName_l(int name) 2847{ 2848} 2849 2850// checkForNewParameters_l() must be called with ThreadBase::mLock held 2851bool AudioFlinger::DirectOutputThread::checkForNewParameters_l() 2852{ 2853 bool reconfig = false; 2854 2855 while (!mNewParameters.isEmpty()) { 2856 status_t status = NO_ERROR; 2857 String8 keyValuePair = mNewParameters[0]; 2858 AudioParameter param = AudioParameter(keyValuePair); 2859 int value; 2860 2861 if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) { 2862 // do not accept frame count changes if tracks are open as the track buffer 2863 // size depends on frame count and correct behavior would not be garantied 2864 // if frame count is changed after track creation 2865 if (!mTracks.isEmpty()) { 2866 status = INVALID_OPERATION; 2867 } else { 2868 reconfig = true; 2869 } 2870 } 2871 if (status == NO_ERROR) { 2872 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2873 keyValuePair.string()); 2874 if (!mStandby && status == INVALID_OPERATION) { 2875 mOutput->stream->common.standby(&mOutput->stream->common); 2876 mStandby = true; 2877 mBytesWritten = 0; 2878 status = mOutput->stream->common.set_parameters(&mOutput->stream->common, 2879 keyValuePair.string()); 2880 } 2881 if (status == NO_ERROR && reconfig) { 2882 readOutputParameters(); 2883 sendConfigEvent_l(AudioSystem::OUTPUT_CONFIG_CHANGED); 2884 } 2885 } 2886 2887 mNewParameters.removeAt(0); 2888 2889 mParamStatus = status; 2890 mParamCond.signal(); 2891 // wait for condition with time out in case the thread calling ThreadBase::setParameters() 2892 // already timed out waiting for the status and will never signal the condition. 2893 mWaitWorkCV.waitRelative(mLock, kSetParametersTimeout); 2894 } 2895 return reconfig; 2896} 2897 2898uint32_t AudioFlinger::DirectOutputThread::activeSleepTimeUs() 2899{ 2900 uint32_t time; 2901 if (audio_is_linear_pcm(mFormat)) { 2902 time = PlaybackThread::activeSleepTimeUs(); 2903 } else { 2904 time = 10000; 2905 } 2906 return time; 2907} 2908 2909uint32_t AudioFlinger::DirectOutputThread::idleSleepTimeUs() 2910{ 2911 uint32_t time; 2912 if (audio_is_linear_pcm(mFormat)) { 2913 time = (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000) / 2; 2914 } else { 2915 time = 10000; 2916 } 2917 return time; 2918} 2919 2920uint32_t AudioFlinger::DirectOutputThread::suspendSleepTimeUs() 2921{ 2922 uint32_t time; 2923 if (audio_is_linear_pcm(mFormat)) { 2924 time = (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000); 2925 } else { 2926 time = 10000; 2927 } 2928 return time; 2929} 2930 2931 2932// ---------------------------------------------------------------------------- 2933 2934AudioFlinger::DuplicatingThread::DuplicatingThread(const sp<AudioFlinger>& audioFlinger, AudioFlinger::MixerThread* mainThread, int id) 2935 : MixerThread(audioFlinger, mainThread->getOutput(), id, mainThread->device()), mWaitTimeMs(UINT_MAX) 2936{ 2937 mType = ThreadBase::DUPLICATING; 2938 addOutputTrack(mainThread); 2939} 2940 2941AudioFlinger::DuplicatingThread::~DuplicatingThread() 2942{ 2943 for (size_t i = 0; i < mOutputTracks.size(); i++) { 2944 mOutputTracks[i]->destroy(); 2945 } 2946 mOutputTracks.clear(); 2947} 2948 2949bool AudioFlinger::DuplicatingThread::threadLoop() 2950{ 2951 Vector< sp<Track> > tracksToRemove; 2952 uint32_t mixerStatus = MIXER_IDLE; 2953 nsecs_t standbyTime = systemTime(); 2954 size_t mixBufferSize = mFrameCount*mFrameSize; 2955 SortedVector< sp<OutputTrack> > outputTracks; 2956 uint32_t writeFrames = 0; 2957 uint32_t activeSleepTime = activeSleepTimeUs(); 2958 uint32_t idleSleepTime = idleSleepTimeUs(); 2959 uint32_t sleepTime = idleSleepTime; 2960 Vector< sp<EffectChain> > effectChains; 2961 2962 acquireWakeLock(); 2963 2964 while (!exitPending()) 2965 { 2966 processConfigEvents(); 2967 2968 mixerStatus = MIXER_IDLE; 2969 { // scope for the mLock 2970 2971 Mutex::Autolock _l(mLock); 2972 2973 if (checkForNewParameters_l()) { 2974 mixBufferSize = mFrameCount*mFrameSize; 2975 updateWaitTime(); 2976 activeSleepTime = activeSleepTimeUs(); 2977 idleSleepTime = idleSleepTimeUs(); 2978 } 2979 2980 const SortedVector< wp<Track> >& activeTracks = mActiveTracks; 2981 2982 for (size_t i = 0; i < mOutputTracks.size(); i++) { 2983 outputTracks.add(mOutputTracks[i]); 2984 } 2985 2986 // put audio hardware into standby after short delay 2987 if UNLIKELY((!activeTracks.size() && systemTime() > standbyTime) || 2988 mSuspended) { 2989 if (!mStandby) { 2990 for (size_t i = 0; i < outputTracks.size(); i++) { 2991 outputTracks[i]->stop(); 2992 } 2993 mStandby = true; 2994 mBytesWritten = 0; 2995 } 2996 2997 if (!activeTracks.size() && mConfigEvents.isEmpty()) { 2998 // we're about to wait, flush the binder command buffer 2999 IPCThreadState::self()->flushCommands(); 3000 outputTracks.clear(); 3001 3002 if (exitPending()) break; 3003 3004 releaseWakeLock_l(); 3005 ALOGV("DuplicatingThread %p TID %d going to sleep\n", this, gettid()); 3006 mWaitWorkCV.wait(mLock); 3007 ALOGV("DuplicatingThread %p TID %d waking up\n", this, gettid()); 3008 acquireWakeLock_l(); 3009 3010 if (mMasterMute == false) { 3011 char value[PROPERTY_VALUE_MAX]; 3012 property_get("ro.audio.silent", value, "0"); 3013 if (atoi(value)) { 3014 LOGD("Silence is golden"); 3015 setMasterMute(true); 3016 } 3017 } 3018 3019 standbyTime = systemTime() + kStandbyTimeInNsecs; 3020 sleepTime = idleSleepTime; 3021 continue; 3022 } 3023 } 3024 3025 mixerStatus = prepareTracks_l(activeTracks, &tracksToRemove); 3026 3027 // prevent any changes in effect chain list and in each effect chain 3028 // during mixing and effect process as the audio buffers could be deleted 3029 // or modified if an effect is created or deleted 3030 lockEffectChains_l(effectChains); 3031 } 3032 3033 if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) { 3034 // mix buffers... 3035 if (outputsReady(outputTracks)) { 3036 mAudioMixer->process(); 3037 } else { 3038 memset(mMixBuffer, 0, mixBufferSize); 3039 } 3040 sleepTime = 0; 3041 writeFrames = mFrameCount; 3042 } else { 3043 if (sleepTime == 0) { 3044 if (mixerStatus == MIXER_TRACKS_ENABLED) { 3045 sleepTime = activeSleepTime; 3046 } else { 3047 sleepTime = idleSleepTime; 3048 } 3049 } else if (mBytesWritten != 0) { 3050 // flush remaining overflow buffers in output tracks 3051 for (size_t i = 0; i < outputTracks.size(); i++) { 3052 if (outputTracks[i]->isActive()) { 3053 sleepTime = 0; 3054 writeFrames = 0; 3055 memset(mMixBuffer, 0, mixBufferSize); 3056 break; 3057 } 3058 } 3059 } 3060 } 3061 3062 if (mSuspended) { 3063 sleepTime = suspendSleepTimeUs(); 3064 } 3065 // sleepTime == 0 means we must write to audio hardware 3066 if (sleepTime == 0) { 3067 for (size_t i = 0; i < effectChains.size(); i ++) { 3068 effectChains[i]->process_l(); 3069 } 3070 // enable changes in effect chain 3071 unlockEffectChains(effectChains); 3072 3073 standbyTime = systemTime() + kStandbyTimeInNsecs; 3074 for (size_t i = 0; i < outputTracks.size(); i++) { 3075 outputTracks[i]->write(mMixBuffer, writeFrames); 3076 } 3077 mStandby = false; 3078 mBytesWritten += mixBufferSize; 3079 } else { 3080 // enable changes in effect chain 3081 unlockEffectChains(effectChains); 3082 usleep(sleepTime); 3083 } 3084 3085 // finally let go of all our tracks, without the lock held 3086 // since we can't guarantee the destructors won't acquire that 3087 // same lock. 3088 tracksToRemove.clear(); 3089 outputTracks.clear(); 3090 3091 // Effect chains will be actually deleted here if they were removed from 3092 // mEffectChains list during mixing or effects processing 3093 effectChains.clear(); 3094 } 3095 3096 releaseWakeLock(); 3097 3098 return false; 3099} 3100 3101void AudioFlinger::DuplicatingThread::addOutputTrack(MixerThread *thread) 3102{ 3103 int frameCount = (3 * mFrameCount * mSampleRate) / thread->sampleRate(); 3104 OutputTrack *outputTrack = new OutputTrack((ThreadBase *)thread, 3105 this, 3106 mSampleRate, 3107 mFormat, 3108 mChannelMask, 3109 frameCount); 3110 if (outputTrack->cblk() != NULL) { 3111 thread->setStreamVolume(AUDIO_STREAM_CNT, 1.0f); 3112 mOutputTracks.add(outputTrack); 3113 ALOGV("addOutputTrack() track %p, on thread %p", outputTrack, thread); 3114 updateWaitTime(); 3115 } 3116} 3117 3118void AudioFlinger::DuplicatingThread::removeOutputTrack(MixerThread *thread) 3119{ 3120 Mutex::Autolock _l(mLock); 3121 for (size_t i = 0; i < mOutputTracks.size(); i++) { 3122 if (mOutputTracks[i]->thread() == (ThreadBase *)thread) { 3123 mOutputTracks[i]->destroy(); 3124 mOutputTracks.removeAt(i); 3125 updateWaitTime(); 3126 return; 3127 } 3128 } 3129 ALOGV("removeOutputTrack(): unkonwn thread: %p", thread); 3130} 3131 3132void AudioFlinger::DuplicatingThread::updateWaitTime() 3133{ 3134 mWaitTimeMs = UINT_MAX; 3135 for (size_t i = 0; i < mOutputTracks.size(); i++) { 3136 sp<ThreadBase> strong = mOutputTracks[i]->thread().promote(); 3137 if (strong != NULL) { 3138 uint32_t waitTimeMs = (strong->frameCount() * 2 * 1000) / strong->sampleRate(); 3139 if (waitTimeMs < mWaitTimeMs) { 3140 mWaitTimeMs = waitTimeMs; 3141 } 3142 } 3143 } 3144} 3145 3146 3147bool AudioFlinger::DuplicatingThread::outputsReady(SortedVector< sp<OutputTrack> > &outputTracks) 3148{ 3149 for (size_t i = 0; i < outputTracks.size(); i++) { 3150 sp <ThreadBase> thread = outputTracks[i]->thread().promote(); 3151 if (thread == 0) { 3152 LOGW("DuplicatingThread::outputsReady() could not promote thread on output track %p", outputTracks[i].get()); 3153 return false; 3154 } 3155 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3156 if (playbackThread->standby() && !playbackThread->isSuspended()) { 3157 ALOGV("DuplicatingThread output track %p on thread %p Not Ready", outputTracks[i].get(), thread.get()); 3158 return false; 3159 } 3160 } 3161 return true; 3162} 3163 3164uint32_t AudioFlinger::DuplicatingThread::activeSleepTimeUs() 3165{ 3166 return (mWaitTimeMs * 1000) / 2; 3167} 3168 3169// ---------------------------------------------------------------------------- 3170 3171// TrackBase constructor must be called with AudioFlinger::mLock held 3172AudioFlinger::ThreadBase::TrackBase::TrackBase( 3173 const wp<ThreadBase>& thread, 3174 const sp<Client>& client, 3175 uint32_t sampleRate, 3176 uint32_t format, 3177 uint32_t channelMask, 3178 int frameCount, 3179 uint32_t flags, 3180 const sp<IMemory>& sharedBuffer, 3181 int sessionId) 3182 : RefBase(), 3183 mThread(thread), 3184 mClient(client), 3185 mCblk(0), 3186 mFrameCount(0), 3187 mState(IDLE), 3188 mClientTid(-1), 3189 mFormat(format), 3190 mFlags(flags & ~SYSTEM_FLAGS_MASK), 3191 mSessionId(sessionId) 3192{ 3193 ALOGV_IF(sharedBuffer != 0, "sharedBuffer: %p, size: %d", sharedBuffer->pointer(), sharedBuffer->size()); 3194 3195 // LOGD("Creating track with %d buffers @ %d bytes", bufferCount, bufferSize); 3196 size_t size = sizeof(audio_track_cblk_t); 3197 uint8_t channelCount = popcount(channelMask); 3198 size_t bufferSize = frameCount*channelCount*sizeof(int16_t); 3199 if (sharedBuffer == 0) { 3200 size += bufferSize; 3201 } 3202 3203 if (client != NULL) { 3204 mCblkMemory = client->heap()->allocate(size); 3205 if (mCblkMemory != 0) { 3206 mCblk = static_cast<audio_track_cblk_t *>(mCblkMemory->pointer()); 3207 if (mCblk) { // construct the shared structure in-place. 3208 new(mCblk) audio_track_cblk_t(); 3209 // clear all buffers 3210 mCblk->frameCount = frameCount; 3211 mCblk->sampleRate = sampleRate; 3212 mChannelCount = channelCount; 3213 mChannelMask = channelMask; 3214 if (sharedBuffer == 0) { 3215 mBuffer = (char*)mCblk + sizeof(audio_track_cblk_t); 3216 memset(mBuffer, 0, frameCount*channelCount*sizeof(int16_t)); 3217 // Force underrun condition to avoid false underrun callback until first data is 3218 // written to buffer (other flags are cleared) 3219 mCblk->flags = CBLK_UNDERRUN_ON; 3220 } else { 3221 mBuffer = sharedBuffer->pointer(); 3222 } 3223 mBufferEnd = (uint8_t *)mBuffer + bufferSize; 3224 } 3225 } else { 3226 LOGE("not enough memory for AudioTrack size=%u", size); 3227 client->heap()->dump("AudioTrack"); 3228 return; 3229 } 3230 } else { 3231 mCblk = (audio_track_cblk_t *)(new uint8_t[size]); 3232 if (mCblk) { // construct the shared structure in-place. 3233 new(mCblk) audio_track_cblk_t(); 3234 // clear all buffers 3235 mCblk->frameCount = frameCount; 3236 mCblk->sampleRate = sampleRate; 3237 mChannelCount = channelCount; 3238 mChannelMask = channelMask; 3239 mBuffer = (char*)mCblk + sizeof(audio_track_cblk_t); 3240 memset(mBuffer, 0, frameCount*channelCount*sizeof(int16_t)); 3241 // Force underrun condition to avoid false underrun callback until first data is 3242 // written to buffer (other flags are cleared) 3243 mCblk->flags = CBLK_UNDERRUN_ON; 3244 mBufferEnd = (uint8_t *)mBuffer + bufferSize; 3245 } 3246 } 3247} 3248 3249AudioFlinger::ThreadBase::TrackBase::~TrackBase() 3250{ 3251 if (mCblk) { 3252 mCblk->~audio_track_cblk_t(); // destroy our shared-structure. 3253 if (mClient == NULL) { 3254 delete mCblk; 3255 } 3256 } 3257 mCblkMemory.clear(); // and free the shared memory 3258 if (mClient != NULL) { 3259 Mutex::Autolock _l(mClient->audioFlinger()->mLock); 3260 mClient.clear(); 3261 } 3262} 3263 3264void AudioFlinger::ThreadBase::TrackBase::releaseBuffer(AudioBufferProvider::Buffer* buffer) 3265{ 3266 buffer->raw = 0; 3267 mFrameCount = buffer->frameCount; 3268 step(); 3269 buffer->frameCount = 0; 3270} 3271 3272bool AudioFlinger::ThreadBase::TrackBase::step() { 3273 bool result; 3274 audio_track_cblk_t* cblk = this->cblk(); 3275 3276 result = cblk->stepServer(mFrameCount); 3277 if (!result) { 3278 ALOGV("stepServer failed acquiring cblk mutex"); 3279 mFlags |= STEPSERVER_FAILED; 3280 } 3281 return result; 3282} 3283 3284void AudioFlinger::ThreadBase::TrackBase::reset() { 3285 audio_track_cblk_t* cblk = this->cblk(); 3286 3287 cblk->user = 0; 3288 cblk->server = 0; 3289 cblk->userBase = 0; 3290 cblk->serverBase = 0; 3291 mFlags &= (uint32_t)(~SYSTEM_FLAGS_MASK); 3292 ALOGV("TrackBase::reset"); 3293} 3294 3295sp<IMemory> AudioFlinger::ThreadBase::TrackBase::getCblk() const 3296{ 3297 return mCblkMemory; 3298} 3299 3300int AudioFlinger::ThreadBase::TrackBase::sampleRate() const { 3301 return (int)mCblk->sampleRate; 3302} 3303 3304int AudioFlinger::ThreadBase::TrackBase::channelCount() const { 3305 return (const int)mChannelCount; 3306} 3307 3308uint32_t AudioFlinger::ThreadBase::TrackBase::channelMask() const { 3309 return mChannelMask; 3310} 3311 3312void* AudioFlinger::ThreadBase::TrackBase::getBuffer(uint32_t offset, uint32_t frames) const { 3313 audio_track_cblk_t* cblk = this->cblk(); 3314 int8_t *bufferStart = (int8_t *)mBuffer + (offset-cblk->serverBase)*cblk->frameSize; 3315 int8_t *bufferEnd = bufferStart + frames * cblk->frameSize; 3316 3317 // Check validity of returned pointer in case the track control block would have been corrupted. 3318 if (bufferStart < mBuffer || bufferStart > bufferEnd || bufferEnd > mBufferEnd || 3319 ((unsigned long)bufferStart & (unsigned long)(cblk->frameSize - 1))) { 3320 LOGE("TrackBase::getBuffer buffer out of range:\n start: %p, end %p , mBuffer %p mBufferEnd %p\n \ 3321 server %d, serverBase %d, user %d, userBase %d", 3322 bufferStart, bufferEnd, mBuffer, mBufferEnd, 3323 cblk->server, cblk->serverBase, cblk->user, cblk->userBase); 3324 return 0; 3325 } 3326 3327 return bufferStart; 3328} 3329 3330// ---------------------------------------------------------------------------- 3331 3332// Track constructor must be called with AudioFlinger::mLock and ThreadBase::mLock held 3333AudioFlinger::PlaybackThread::Track::Track( 3334 const wp<ThreadBase>& thread, 3335 const sp<Client>& client, 3336 int streamType, 3337 uint32_t sampleRate, 3338 uint32_t format, 3339 uint32_t channelMask, 3340 int frameCount, 3341 const sp<IMemory>& sharedBuffer, 3342 int sessionId) 3343 : TrackBase(thread, client, sampleRate, format, channelMask, frameCount, 0, sharedBuffer, sessionId), 3344 mMute(false), mSharedBuffer(sharedBuffer), mName(-1), mMainBuffer(NULL), mAuxBuffer(NULL), 3345 mAuxEffectId(0), mHasVolumeController(false) 3346{ 3347 if (mCblk != NULL) { 3348 sp<ThreadBase> baseThread = thread.promote(); 3349 if (baseThread != 0) { 3350 PlaybackThread *playbackThread = (PlaybackThread *)baseThread.get(); 3351 mName = playbackThread->getTrackName_l(); 3352 mMainBuffer = playbackThread->mixBuffer(); 3353 } 3354 ALOGV("Track constructor name %d, calling thread %d", mName, IPCThreadState::self()->getCallingPid()); 3355 if (mName < 0) { 3356 LOGE("no more track names available"); 3357 } 3358 mVolume[0] = 1.0f; 3359 mVolume[1] = 1.0f; 3360 mStreamType = streamType; 3361 // NOTE: audio_track_cblk_t::frameSize for 8 bit PCM data is based on a sample size of 3362 // 16 bit because data is converted to 16 bit before being stored in buffer by AudioTrack 3363 mCblk->frameSize = audio_is_linear_pcm(format) ? mChannelCount * sizeof(int16_t) : sizeof(uint8_t); 3364 } 3365} 3366 3367AudioFlinger::PlaybackThread::Track::~Track() 3368{ 3369 ALOGV("PlaybackThread::Track destructor"); 3370 sp<ThreadBase> thread = mThread.promote(); 3371 if (thread != 0) { 3372 Mutex::Autolock _l(thread->mLock); 3373 mState = TERMINATED; 3374 } 3375} 3376 3377void AudioFlinger::PlaybackThread::Track::destroy() 3378{ 3379 // NOTE: destroyTrack_l() can remove a strong reference to this Track 3380 // by removing it from mTracks vector, so there is a risk that this Tracks's 3381 // desctructor is called. As the destructor needs to lock mLock, 3382 // we must acquire a strong reference on this Track before locking mLock 3383 // here so that the destructor is called only when exiting this function. 3384 // On the other hand, as long as Track::destroy() is only called by 3385 // TrackHandle destructor, the TrackHandle still holds a strong ref on 3386 // this Track with its member mTrack. 3387 sp<Track> keep(this); 3388 { // scope for mLock 3389 sp<ThreadBase> thread = mThread.promote(); 3390 if (thread != 0) { 3391 if (!isOutputTrack()) { 3392 if (mState == ACTIVE || mState == RESUMING) { 3393 AudioSystem::stopOutput(thread->id(), 3394 (audio_stream_type_t)mStreamType, 3395 mSessionId); 3396 3397 // to track the speaker usage 3398 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop); 3399 } 3400 AudioSystem::releaseOutput(thread->id()); 3401 } 3402 Mutex::Autolock _l(thread->mLock); 3403 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3404 playbackThread->destroyTrack_l(this); 3405 } 3406 } 3407} 3408 3409void AudioFlinger::PlaybackThread::Track::dump(char* buffer, size_t size) 3410{ 3411 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", 3412 mName - AudioMixer::TRACK0, 3413 (mClient == NULL) ? getpid() : mClient->pid(), 3414 mStreamType, 3415 mFormat, 3416 mChannelMask, 3417 mSessionId, 3418 mFrameCount, 3419 mState, 3420 mMute, 3421 mFillingUpStatus, 3422 mCblk->sampleRate, 3423 mCblk->volume[0], 3424 mCblk->volume[1], 3425 mCblk->server, 3426 mCblk->user, 3427 (int)mMainBuffer, 3428 (int)mAuxBuffer); 3429} 3430 3431status_t AudioFlinger::PlaybackThread::Track::getNextBuffer(AudioBufferProvider::Buffer* buffer) 3432{ 3433 audio_track_cblk_t* cblk = this->cblk(); 3434 uint32_t framesReady; 3435 uint32_t framesReq = buffer->frameCount; 3436 3437 // Check if last stepServer failed, try to step now 3438 if (mFlags & TrackBase::STEPSERVER_FAILED) { 3439 if (!step()) goto getNextBuffer_exit; 3440 ALOGV("stepServer recovered"); 3441 mFlags &= ~TrackBase::STEPSERVER_FAILED; 3442 } 3443 3444 framesReady = cblk->framesReady(); 3445 3446 if (LIKELY(framesReady)) { 3447 uint32_t s = cblk->server; 3448 uint32_t bufferEnd = cblk->serverBase + cblk->frameCount; 3449 3450 bufferEnd = (cblk->loopEnd < bufferEnd) ? cblk->loopEnd : bufferEnd; 3451 if (framesReq > framesReady) { 3452 framesReq = framesReady; 3453 } 3454 if (s + framesReq > bufferEnd) { 3455 framesReq = bufferEnd - s; 3456 } 3457 3458 buffer->raw = getBuffer(s, framesReq); 3459 if (buffer->raw == 0) goto getNextBuffer_exit; 3460 3461 buffer->frameCount = framesReq; 3462 return NO_ERROR; 3463 } 3464 3465getNextBuffer_exit: 3466 buffer->raw = 0; 3467 buffer->frameCount = 0; 3468 ALOGV("getNextBuffer() no more data for track %d on thread %p", mName, mThread.unsafe_get()); 3469 return NOT_ENOUGH_DATA; 3470} 3471 3472bool AudioFlinger::PlaybackThread::Track::isReady() const { 3473 if (mFillingUpStatus != FS_FILLING || isStopped() || isPausing()) return true; 3474 3475 if (mCblk->framesReady() >= mCblk->frameCount || 3476 (mCblk->flags & CBLK_FORCEREADY_MSK)) { 3477 mFillingUpStatus = FS_FILLED; 3478 android_atomic_and(~CBLK_FORCEREADY_MSK, &mCblk->flags); 3479 return true; 3480 } 3481 return false; 3482} 3483 3484status_t AudioFlinger::PlaybackThread::Track::start() 3485{ 3486 status_t status = NO_ERROR; 3487 ALOGV("start(%d), calling thread %d session %d", 3488 mName, IPCThreadState::self()->getCallingPid(), mSessionId); 3489 sp<ThreadBase> thread = mThread.promote(); 3490 if (thread != 0) { 3491 Mutex::Autolock _l(thread->mLock); 3492 int state = mState; 3493 // here the track could be either new, or restarted 3494 // in both cases "unstop" the track 3495 if (mState == PAUSED) { 3496 mState = TrackBase::RESUMING; 3497 ALOGV("PAUSED => RESUMING (%d) on thread %p", mName, this); 3498 } else { 3499 mState = TrackBase::ACTIVE; 3500 ALOGV("? => ACTIVE (%d) on thread %p", mName, this); 3501 } 3502 3503 if (!isOutputTrack() && state != ACTIVE && state != RESUMING) { 3504 thread->mLock.unlock(); 3505 status = AudioSystem::startOutput(thread->id(), 3506 (audio_stream_type_t)mStreamType, 3507 mSessionId); 3508 thread->mLock.lock(); 3509 3510 // to track the speaker usage 3511 if (status == NO_ERROR) { 3512 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStart); 3513 } 3514 } 3515 if (status == NO_ERROR) { 3516 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3517 playbackThread->addTrack_l(this); 3518 } else { 3519 mState = state; 3520 } 3521 } else { 3522 status = BAD_VALUE; 3523 } 3524 return status; 3525} 3526 3527void AudioFlinger::PlaybackThread::Track::stop() 3528{ 3529 ALOGV("stop(%d), calling thread %d", mName, IPCThreadState::self()->getCallingPid()); 3530 sp<ThreadBase> thread = mThread.promote(); 3531 if (thread != 0) { 3532 Mutex::Autolock _l(thread->mLock); 3533 int state = mState; 3534 if (mState > STOPPED) { 3535 mState = STOPPED; 3536 // If the track is not active (PAUSED and buffers full), flush buffers 3537 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3538 if (playbackThread->mActiveTracks.indexOf(this) < 0) { 3539 reset(); 3540 } 3541 ALOGV("(> STOPPED) => STOPPED (%d) on thread %p", mName, playbackThread); 3542 } 3543 if (!isOutputTrack() && (state == ACTIVE || state == RESUMING)) { 3544 thread->mLock.unlock(); 3545 AudioSystem::stopOutput(thread->id(), 3546 (audio_stream_type_t)mStreamType, 3547 mSessionId); 3548 thread->mLock.lock(); 3549 3550 // to track the speaker usage 3551 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop); 3552 } 3553 } 3554} 3555 3556void AudioFlinger::PlaybackThread::Track::pause() 3557{ 3558 ALOGV("pause(%d), calling thread %d", mName, IPCThreadState::self()->getCallingPid()); 3559 sp<ThreadBase> thread = mThread.promote(); 3560 if (thread != 0) { 3561 Mutex::Autolock _l(thread->mLock); 3562 if (mState == ACTIVE || mState == RESUMING) { 3563 mState = PAUSING; 3564 ALOGV("ACTIVE/RESUMING => PAUSING (%d) on thread %p", mName, thread.get()); 3565 if (!isOutputTrack()) { 3566 thread->mLock.unlock(); 3567 AudioSystem::stopOutput(thread->id(), 3568 (audio_stream_type_t)mStreamType, 3569 mSessionId); 3570 thread->mLock.lock(); 3571 3572 // to track the speaker usage 3573 addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop); 3574 } 3575 } 3576 } 3577} 3578 3579void AudioFlinger::PlaybackThread::Track::flush() 3580{ 3581 ALOGV("flush(%d)", mName); 3582 sp<ThreadBase> thread = mThread.promote(); 3583 if (thread != 0) { 3584 Mutex::Autolock _l(thread->mLock); 3585 if (mState != STOPPED && mState != PAUSED && mState != PAUSING) { 3586 return; 3587 } 3588 // No point remaining in PAUSED state after a flush => go to 3589 // STOPPED state 3590 mState = STOPPED; 3591 3592 // do not reset the track if it is still in the process of being stopped or paused. 3593 // this will be done by prepareTracks_l() when the track is stopped. 3594 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3595 if (playbackThread->mActiveTracks.indexOf(this) < 0) { 3596 reset(); 3597 } 3598 } 3599} 3600 3601void AudioFlinger::PlaybackThread::Track::reset() 3602{ 3603 // Do not reset twice to avoid discarding data written just after a flush and before 3604 // the audioflinger thread detects the track is stopped. 3605 if (!mResetDone) { 3606 TrackBase::reset(); 3607 // Force underrun condition to avoid false underrun callback until first data is 3608 // written to buffer 3609 android_atomic_and(~CBLK_FORCEREADY_MSK, &mCblk->flags); 3610 android_atomic_or(CBLK_UNDERRUN_ON, &mCblk->flags); 3611 mFillingUpStatus = FS_FILLING; 3612 mResetDone = true; 3613 } 3614} 3615 3616void AudioFlinger::PlaybackThread::Track::mute(bool muted) 3617{ 3618 mMute = muted; 3619} 3620 3621void AudioFlinger::PlaybackThread::Track::setVolume(float left, float right) 3622{ 3623 mVolume[0] = left; 3624 mVolume[1] = right; 3625} 3626 3627status_t AudioFlinger::PlaybackThread::Track::attachAuxEffect(int EffectId) 3628{ 3629 status_t status = DEAD_OBJECT; 3630 sp<ThreadBase> thread = mThread.promote(); 3631 if (thread != 0) { 3632 PlaybackThread *playbackThread = (PlaybackThread *)thread.get(); 3633 status = playbackThread->attachAuxEffect(this, EffectId); 3634 } 3635 return status; 3636} 3637 3638void AudioFlinger::PlaybackThread::Track::setAuxBuffer(int EffectId, int32_t *buffer) 3639{ 3640 mAuxEffectId = EffectId; 3641 mAuxBuffer = buffer; 3642} 3643 3644// ---------------------------------------------------------------------------- 3645 3646// RecordTrack constructor must be called with AudioFlinger::mLock held 3647AudioFlinger::RecordThread::RecordTrack::RecordTrack( 3648 const wp<ThreadBase>& thread, 3649 const sp<Client>& client, 3650 uint32_t sampleRate, 3651 uint32_t format, 3652 uint32_t channelMask, 3653 int frameCount, 3654 uint32_t flags, 3655 int sessionId) 3656 : TrackBase(thread, client, sampleRate, format, 3657 channelMask, frameCount, flags, 0, sessionId), 3658 mOverflow(false) 3659{ 3660 if (mCblk != NULL) { 3661 ALOGV("RecordTrack constructor, size %d", (int)mBufferEnd - (int)mBuffer); 3662 if (format == AUDIO_FORMAT_PCM_16_BIT) { 3663 mCblk->frameSize = mChannelCount * sizeof(int16_t); 3664 } else if (format == AUDIO_FORMAT_PCM_8_BIT) { 3665 mCblk->frameSize = mChannelCount * sizeof(int8_t); 3666 } else { 3667 mCblk->frameSize = sizeof(int8_t); 3668 } 3669 } 3670} 3671 3672AudioFlinger::RecordThread::RecordTrack::~RecordTrack() 3673{ 3674 sp<ThreadBase> thread = mThread.promote(); 3675 if (thread != 0) { 3676 AudioSystem::releaseInput(thread->id()); 3677 } 3678} 3679 3680status_t AudioFlinger::RecordThread::RecordTrack::getNextBuffer(AudioBufferProvider::Buffer* buffer) 3681{ 3682 audio_track_cblk_t* cblk = this->cblk(); 3683 uint32_t framesAvail; 3684 uint32_t framesReq = buffer->frameCount; 3685 3686 // Check if last stepServer failed, try to step now 3687 if (mFlags & TrackBase::STEPSERVER_FAILED) { 3688 if (!step()) goto getNextBuffer_exit; 3689 ALOGV("stepServer recovered"); 3690 mFlags &= ~TrackBase::STEPSERVER_FAILED; 3691 } 3692 3693 framesAvail = cblk->framesAvailable_l(); 3694 3695 if (LIKELY(framesAvail)) { 3696 uint32_t s = cblk->server; 3697 uint32_t bufferEnd = cblk->serverBase + cblk->frameCount; 3698 3699 if (framesReq > framesAvail) { 3700 framesReq = framesAvail; 3701 } 3702 if (s + framesReq > bufferEnd) { 3703 framesReq = bufferEnd - s; 3704 } 3705 3706 buffer->raw = getBuffer(s, framesReq); 3707 if (buffer->raw == 0) goto getNextBuffer_exit; 3708 3709 buffer->frameCount = framesReq; 3710 return NO_ERROR; 3711 } 3712 3713getNextBuffer_exit: 3714 buffer->raw = 0; 3715 buffer->frameCount = 0; 3716 return NOT_ENOUGH_DATA; 3717} 3718 3719status_t AudioFlinger::RecordThread::RecordTrack::start() 3720{ 3721 sp<ThreadBase> thread = mThread.promote(); 3722 if (thread != 0) { 3723 RecordThread *recordThread = (RecordThread *)thread.get(); 3724 return recordThread->start(this); 3725 } else { 3726 return BAD_VALUE; 3727 } 3728} 3729 3730void AudioFlinger::RecordThread::RecordTrack::stop() 3731{ 3732 sp<ThreadBase> thread = mThread.promote(); 3733 if (thread != 0) { 3734 RecordThread *recordThread = (RecordThread *)thread.get(); 3735 recordThread->stop(this); 3736 TrackBase::reset(); 3737 // Force overerrun condition to avoid false overrun callback until first data is 3738 // read from buffer 3739 android_atomic_or(CBLK_UNDERRUN_ON, &mCblk->flags); 3740 } 3741} 3742 3743void AudioFlinger::RecordThread::RecordTrack::dump(char* buffer, size_t size) 3744{ 3745 snprintf(buffer, size, " %05d %03u 0x%08x %05d %04u %01d %05u %08x %08x\n", 3746 (mClient == NULL) ? getpid() : mClient->pid(), 3747 mFormat, 3748 mChannelMask, 3749 mSessionId, 3750 mFrameCount, 3751 mState, 3752 mCblk->sampleRate, 3753 mCblk->server, 3754 mCblk->user); 3755} 3756 3757 3758// ---------------------------------------------------------------------------- 3759 3760AudioFlinger::PlaybackThread::OutputTrack::OutputTrack( 3761 const wp<ThreadBase>& thread, 3762 DuplicatingThread *sourceThread, 3763 uint32_t sampleRate, 3764 uint32_t format, 3765 uint32_t channelMask, 3766 int frameCount) 3767 : Track(thread, NULL, AUDIO_STREAM_CNT, sampleRate, format, channelMask, frameCount, NULL, 0), 3768 mActive(false), mSourceThread(sourceThread) 3769{ 3770 3771 PlaybackThread *playbackThread = (PlaybackThread *)thread.unsafe_get(); 3772 if (mCblk != NULL) { 3773 mCblk->flags |= CBLK_DIRECTION_OUT; 3774 mCblk->buffers = (char*)mCblk + sizeof(audio_track_cblk_t); 3775 mCblk->volume[0] = mCblk->volume[1] = 0x1000; 3776 mOutBuffer.frameCount = 0; 3777 playbackThread->mTracks.add(this); 3778 ALOGV("OutputTrack constructor mCblk %p, mBuffer %p, mCblk->buffers %p, " \ 3779 "mCblk->frameCount %d, mCblk->sampleRate %d, mChannelMask 0x%08x mBufferEnd %p", 3780 mCblk, mBuffer, mCblk->buffers, 3781 mCblk->frameCount, mCblk->sampleRate, mChannelMask, mBufferEnd); 3782 } else { 3783 LOGW("Error creating output track on thread %p", playbackThread); 3784 } 3785} 3786 3787AudioFlinger::PlaybackThread::OutputTrack::~OutputTrack() 3788{ 3789 clearBufferQueue(); 3790} 3791 3792status_t AudioFlinger::PlaybackThread::OutputTrack::start() 3793{ 3794 status_t status = Track::start(); 3795 if (status != NO_ERROR) { 3796 return status; 3797 } 3798 3799 mActive = true; 3800 mRetryCount = 127; 3801 return status; 3802} 3803 3804void AudioFlinger::PlaybackThread::OutputTrack::stop() 3805{ 3806 Track::stop(); 3807 clearBufferQueue(); 3808 mOutBuffer.frameCount = 0; 3809 mActive = false; 3810} 3811 3812bool AudioFlinger::PlaybackThread::OutputTrack::write(int16_t* data, uint32_t frames) 3813{ 3814 Buffer *pInBuffer; 3815 Buffer inBuffer; 3816 uint32_t channelCount = mChannelCount; 3817 bool outputBufferFull = false; 3818 inBuffer.frameCount = frames; 3819 inBuffer.i16 = data; 3820 3821 uint32_t waitTimeLeftMs = mSourceThread->waitTimeMs(); 3822 3823 if (!mActive && frames != 0) { 3824 start(); 3825 sp<ThreadBase> thread = mThread.promote(); 3826 if (thread != 0) { 3827 MixerThread *mixerThread = (MixerThread *)thread.get(); 3828 if (mCblk->frameCount > frames){ 3829 if (mBufferQueue.size() < kMaxOverFlowBuffers) { 3830 uint32_t startFrames = (mCblk->frameCount - frames); 3831 pInBuffer = new Buffer; 3832 pInBuffer->mBuffer = new int16_t[startFrames * channelCount]; 3833 pInBuffer->frameCount = startFrames; 3834 pInBuffer->i16 = pInBuffer->mBuffer; 3835 memset(pInBuffer->raw, 0, startFrames * channelCount * sizeof(int16_t)); 3836 mBufferQueue.add(pInBuffer); 3837 } else { 3838 LOGW ("OutputTrack::write() %p no more buffers in queue", this); 3839 } 3840 } 3841 } 3842 } 3843 3844 while (waitTimeLeftMs) { 3845 // First write pending buffers, then new data 3846 if (mBufferQueue.size()) { 3847 pInBuffer = mBufferQueue.itemAt(0); 3848 } else { 3849 pInBuffer = &inBuffer; 3850 } 3851 3852 if (pInBuffer->frameCount == 0) { 3853 break; 3854 } 3855 3856 if (mOutBuffer.frameCount == 0) { 3857 mOutBuffer.frameCount = pInBuffer->frameCount; 3858 nsecs_t startTime = systemTime(); 3859 if (obtainBuffer(&mOutBuffer, waitTimeLeftMs) == (status_t)AudioTrack::NO_MORE_BUFFERS) { 3860 ALOGV ("OutputTrack::write() %p thread %p no more output buffers", this, mThread.unsafe_get()); 3861 outputBufferFull = true; 3862 break; 3863 } 3864 uint32_t waitTimeMs = (uint32_t)ns2ms(systemTime() - startTime); 3865 if (waitTimeLeftMs >= waitTimeMs) { 3866 waitTimeLeftMs -= waitTimeMs; 3867 } else { 3868 waitTimeLeftMs = 0; 3869 } 3870 } 3871 3872 uint32_t outFrames = pInBuffer->frameCount > mOutBuffer.frameCount ? mOutBuffer.frameCount : pInBuffer->frameCount; 3873 memcpy(mOutBuffer.raw, pInBuffer->raw, outFrames * channelCount * sizeof(int16_t)); 3874 mCblk->stepUser(outFrames); 3875 pInBuffer->frameCount -= outFrames; 3876 pInBuffer->i16 += outFrames * channelCount; 3877 mOutBuffer.frameCount -= outFrames; 3878 mOutBuffer.i16 += outFrames * channelCount; 3879 3880 if (pInBuffer->frameCount == 0) { 3881 if (mBufferQueue.size()) { 3882 mBufferQueue.removeAt(0); 3883 delete [] pInBuffer->mBuffer; 3884 delete pInBuffer; 3885 ALOGV("OutputTrack::write() %p thread %p released overflow buffer %d", this, mThread.unsafe_get(), mBufferQueue.size()); 3886 } else { 3887 break; 3888 } 3889 } 3890 } 3891 3892 // If we could not write all frames, allocate a buffer and queue it for next time. 3893 if (inBuffer.frameCount) { 3894 sp<ThreadBase> thread = mThread.promote(); 3895 if (thread != 0 && !thread->standby()) { 3896 if (mBufferQueue.size() < kMaxOverFlowBuffers) { 3897 pInBuffer = new Buffer; 3898 pInBuffer->mBuffer = new int16_t[inBuffer.frameCount * channelCount]; 3899 pInBuffer->frameCount = inBuffer.frameCount; 3900 pInBuffer->i16 = pInBuffer->mBuffer; 3901 memcpy(pInBuffer->raw, inBuffer.raw, inBuffer.frameCount * channelCount * sizeof(int16_t)); 3902 mBufferQueue.add(pInBuffer); 3903 ALOGV("OutputTrack::write() %p thread %p adding overflow buffer %d", this, mThread.unsafe_get(), mBufferQueue.size()); 3904 } else { 3905 LOGW("OutputTrack::write() %p thread %p no more overflow buffers", mThread.unsafe_get(), this); 3906 } 3907 } 3908 } 3909 3910 // Calling write() with a 0 length buffer, means that no more data will be written: 3911 // If no more buffers are pending, fill output track buffer to make sure it is started 3912 // by output mixer. 3913 if (frames == 0 && mBufferQueue.size() == 0) { 3914 if (mCblk->user < mCblk->frameCount) { 3915 frames = mCblk->frameCount - mCblk->user; 3916 pInBuffer = new Buffer; 3917 pInBuffer->mBuffer = new int16_t[frames * channelCount]; 3918 pInBuffer->frameCount = frames; 3919 pInBuffer->i16 = pInBuffer->mBuffer; 3920 memset(pInBuffer->raw, 0, frames * channelCount * sizeof(int16_t)); 3921 mBufferQueue.add(pInBuffer); 3922 } else if (mActive) { 3923 stop(); 3924 } 3925 } 3926 3927 return outputBufferFull; 3928} 3929 3930status_t AudioFlinger::PlaybackThread::OutputTrack::obtainBuffer(AudioBufferProvider::Buffer* buffer, uint32_t waitTimeMs) 3931{ 3932 int active; 3933 status_t result; 3934 audio_track_cblk_t* cblk = mCblk; 3935 uint32_t framesReq = buffer->frameCount; 3936 3937// ALOGV("OutputTrack::obtainBuffer user %d, server %d", cblk->user, cblk->server); 3938 buffer->frameCount = 0; 3939 3940 uint32_t framesAvail = cblk->framesAvailable(); 3941 3942 3943 if (framesAvail == 0) { 3944 Mutex::Autolock _l(cblk->lock); 3945 goto start_loop_here; 3946 while (framesAvail == 0) { 3947 active = mActive; 3948 if (UNLIKELY(!active)) { 3949 ALOGV("Not active and NO_MORE_BUFFERS"); 3950 return AudioTrack::NO_MORE_BUFFERS; 3951 } 3952 result = cblk->cv.waitRelative(cblk->lock, milliseconds(waitTimeMs)); 3953 if (result != NO_ERROR) { 3954 return AudioTrack::NO_MORE_BUFFERS; 3955 } 3956 // read the server count again 3957 start_loop_here: 3958 framesAvail = cblk->framesAvailable_l(); 3959 } 3960 } 3961 3962// if (framesAvail < framesReq) { 3963// return AudioTrack::NO_MORE_BUFFERS; 3964// } 3965 3966 if (framesReq > framesAvail) { 3967 framesReq = framesAvail; 3968 } 3969 3970 uint32_t u = cblk->user; 3971 uint32_t bufferEnd = cblk->userBase + cblk->frameCount; 3972 3973 if (u + framesReq > bufferEnd) { 3974 framesReq = bufferEnd - u; 3975 } 3976 3977 buffer->frameCount = framesReq; 3978 buffer->raw = (void *)cblk->buffer(u); 3979 return NO_ERROR; 3980} 3981 3982 3983void AudioFlinger::PlaybackThread::OutputTrack::clearBufferQueue() 3984{ 3985 size_t size = mBufferQueue.size(); 3986 Buffer *pBuffer; 3987 3988 for (size_t i = 0; i < size; i++) { 3989 pBuffer = mBufferQueue.itemAt(i); 3990 delete [] pBuffer->mBuffer; 3991 delete pBuffer; 3992 } 3993 mBufferQueue.clear(); 3994} 3995 3996// ---------------------------------------------------------------------------- 3997 3998AudioFlinger::Client::Client(const sp<AudioFlinger>& audioFlinger, pid_t pid) 3999 : RefBase(), 4000 mAudioFlinger(audioFlinger), 4001 mMemoryDealer(new MemoryDealer(1024*1024, "AudioFlinger::Client")), 4002 mPid(pid) 4003{ 4004 // 1 MB of address space is good for 32 tracks, 8 buffers each, 4 KB/buffer 4005} 4006 4007// Client destructor must be called with AudioFlinger::mLock held 4008AudioFlinger::Client::~Client() 4009{ 4010 mAudioFlinger->removeClient_l(mPid); 4011} 4012 4013const sp<MemoryDealer>& AudioFlinger::Client::heap() const 4014{ 4015 return mMemoryDealer; 4016} 4017 4018// ---------------------------------------------------------------------------- 4019 4020AudioFlinger::NotificationClient::NotificationClient(const sp<AudioFlinger>& audioFlinger, 4021 const sp<IAudioFlingerClient>& client, 4022 pid_t pid) 4023 : mAudioFlinger(audioFlinger), mPid(pid), mClient(client) 4024{ 4025} 4026 4027AudioFlinger::NotificationClient::~NotificationClient() 4028{ 4029 mClient.clear(); 4030} 4031 4032void AudioFlinger::NotificationClient::binderDied(const wp<IBinder>& who) 4033{ 4034 sp<NotificationClient> keep(this); 4035 { 4036 mAudioFlinger->removeNotificationClient(mPid); 4037 } 4038} 4039 4040// ---------------------------------------------------------------------------- 4041 4042AudioFlinger::TrackHandle::TrackHandle(const sp<AudioFlinger::PlaybackThread::Track>& track) 4043 : BnAudioTrack(), 4044 mTrack(track) 4045{ 4046} 4047 4048AudioFlinger::TrackHandle::~TrackHandle() { 4049 // just stop the track on deletion, associated resources 4050 // will be freed from the main thread once all pending buffers have 4051 // been played. Unless it's not in the active track list, in which 4052 // case we free everything now... 4053 mTrack->destroy(); 4054} 4055 4056status_t AudioFlinger::TrackHandle::start() { 4057 return mTrack->start(); 4058} 4059 4060void AudioFlinger::TrackHandle::stop() { 4061 mTrack->stop(); 4062} 4063 4064void AudioFlinger::TrackHandle::flush() { 4065 mTrack->flush(); 4066} 4067 4068void AudioFlinger::TrackHandle::mute(bool e) { 4069 mTrack->mute(e); 4070} 4071 4072void AudioFlinger::TrackHandle::pause() { 4073 mTrack->pause(); 4074} 4075 4076void AudioFlinger::TrackHandle::setVolume(float left, float right) { 4077 mTrack->setVolume(left, right); 4078} 4079 4080sp<IMemory> AudioFlinger::TrackHandle::getCblk() const { 4081 return mTrack->getCblk(); 4082} 4083 4084status_t AudioFlinger::TrackHandle::attachAuxEffect(int EffectId) 4085{ 4086 return mTrack->attachAuxEffect(EffectId); 4087} 4088 4089status_t AudioFlinger::TrackHandle::onTransact( 4090 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 4091{ 4092 return BnAudioTrack::onTransact(code, data, reply, flags); 4093} 4094 4095// ---------------------------------------------------------------------------- 4096 4097sp<IAudioRecord> AudioFlinger::openRecord( 4098 pid_t pid, 4099 int input, 4100 uint32_t sampleRate, 4101 uint32_t format, 4102 uint32_t channelMask, 4103 int frameCount, 4104 uint32_t flags, 4105 int *sessionId, 4106 status_t *status) 4107{ 4108 sp<RecordThread::RecordTrack> recordTrack; 4109 sp<RecordHandle> recordHandle; 4110 sp<Client> client; 4111 wp<Client> wclient; 4112 status_t lStatus; 4113 RecordThread *thread; 4114 size_t inFrameCount; 4115 int lSessionId; 4116 4117 // check calling permissions 4118 if (!recordingAllowed()) { 4119 lStatus = PERMISSION_DENIED; 4120 goto Exit; 4121 } 4122 4123 // add client to list 4124 { // scope for mLock 4125 Mutex::Autolock _l(mLock); 4126 thread = checkRecordThread_l(input); 4127 if (thread == NULL) { 4128 lStatus = BAD_VALUE; 4129 goto Exit; 4130 } 4131 4132 wclient = mClients.valueFor(pid); 4133 if (wclient != NULL) { 4134 client = wclient.promote(); 4135 } else { 4136 client = new Client(this, pid); 4137 mClients.add(pid, client); 4138 } 4139 4140 // If no audio session id is provided, create one here 4141 if (sessionId != NULL && *sessionId != AUDIO_SESSION_OUTPUT_MIX) { 4142 lSessionId = *sessionId; 4143 } else { 4144 lSessionId = nextUniqueId(); 4145 if (sessionId != NULL) { 4146 *sessionId = lSessionId; 4147 } 4148 } 4149 // create new record track. The record track uses one track in mHardwareMixerThread by convention. 4150 recordTrack = thread->createRecordTrack_l(client, 4151 sampleRate, 4152 format, 4153 channelMask, 4154 frameCount, 4155 flags, 4156 lSessionId, 4157 &lStatus); 4158 } 4159 if (lStatus != NO_ERROR) { 4160 // remove local strong reference to Client before deleting the RecordTrack so that the Client 4161 // destructor is called by the TrackBase destructor with mLock held 4162 client.clear(); 4163 recordTrack.clear(); 4164 goto Exit; 4165 } 4166 4167 // return to handle to client 4168 recordHandle = new RecordHandle(recordTrack); 4169 lStatus = NO_ERROR; 4170 4171Exit: 4172 if (status) { 4173 *status = lStatus; 4174 } 4175 return recordHandle; 4176} 4177 4178// ---------------------------------------------------------------------------- 4179 4180AudioFlinger::RecordHandle::RecordHandle(const sp<AudioFlinger::RecordThread::RecordTrack>& recordTrack) 4181 : BnAudioRecord(), 4182 mRecordTrack(recordTrack) 4183{ 4184} 4185 4186AudioFlinger::RecordHandle::~RecordHandle() { 4187 stop(); 4188} 4189 4190status_t AudioFlinger::RecordHandle::start() { 4191 ALOGV("RecordHandle::start()"); 4192 return mRecordTrack->start(); 4193} 4194 4195void AudioFlinger::RecordHandle::stop() { 4196 ALOGV("RecordHandle::stop()"); 4197 mRecordTrack->stop(); 4198} 4199 4200sp<IMemory> AudioFlinger::RecordHandle::getCblk() const { 4201 return mRecordTrack->getCblk(); 4202} 4203 4204status_t AudioFlinger::RecordHandle::onTransact( 4205 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 4206{ 4207 return BnAudioRecord::onTransact(code, data, reply, flags); 4208} 4209 4210// ---------------------------------------------------------------------------- 4211 4212AudioFlinger::RecordThread::RecordThread(const sp<AudioFlinger>& audioFlinger, 4213 AudioStreamIn *input, 4214 uint32_t sampleRate, 4215 uint32_t channels, 4216 int id, 4217 uint32_t device) : 4218 ThreadBase(audioFlinger, id, device), 4219 mInput(input), mTrack(NULL), mResampler(0), mRsmpOutBuffer(0), mRsmpInBuffer(0) 4220{ 4221 mType = ThreadBase::RECORD; 4222 4223 snprintf(mName, kNameLength, "AudioIn_%d", id); 4224 4225 mReqChannelCount = popcount(channels); 4226 mReqSampleRate = sampleRate; 4227 readInputParameters(); 4228} 4229 4230 4231AudioFlinger::RecordThread::~RecordThread() 4232{ 4233 delete[] mRsmpInBuffer; 4234 if (mResampler != 0) { 4235 delete mResampler; 4236 delete[] mRsmpOutBuffer; 4237 } 4238} 4239 4240void AudioFlinger::RecordThread::onFirstRef() 4241{ 4242 run(mName, PRIORITY_URGENT_AUDIO); 4243} 4244 4245status_t AudioFlinger::RecordThread::readyToRun() 4246{ 4247 status_t status = initCheck(); 4248 LOGW_IF(status != NO_ERROR,"RecordThread %p could not initialize", this); 4249 return status; 4250} 4251 4252bool AudioFlinger::RecordThread::threadLoop() 4253{ 4254 AudioBufferProvider::Buffer buffer; 4255 sp<RecordTrack> activeTrack; 4256 Vector< sp<EffectChain> > effectChains; 4257 4258 nsecs_t lastWarning = 0; 4259 4260 acquireWakeLock(); 4261 4262 // start recording 4263 while (!exitPending()) { 4264 4265 processConfigEvents(); 4266 4267 { // scope for mLock 4268 Mutex::Autolock _l(mLock); 4269 checkForNewParameters_l(); 4270 if (mActiveTrack == 0 && mConfigEvents.isEmpty()) { 4271 if (!mStandby) { 4272 mInput->stream->common.standby(&mInput->stream->common); 4273 mStandby = true; 4274 } 4275 4276 if (exitPending()) break; 4277 4278 releaseWakeLock_l(); 4279 ALOGV("RecordThread: loop stopping"); 4280 // go to sleep 4281 mWaitWorkCV.wait(mLock); 4282 ALOGV("RecordThread: loop starting"); 4283 acquireWakeLock_l(); 4284 continue; 4285 } 4286 if (mActiveTrack != 0) { 4287 if (mActiveTrack->mState == TrackBase::PAUSING) { 4288 if (!mStandby) { 4289 mInput->stream->common.standby(&mInput->stream->common); 4290 mStandby = true; 4291 } 4292 mActiveTrack.clear(); 4293 mStartStopCond.broadcast(); 4294 } else if (mActiveTrack->mState == TrackBase::RESUMING) { 4295 if (mReqChannelCount != mActiveTrack->channelCount()) { 4296 mActiveTrack.clear(); 4297 mStartStopCond.broadcast(); 4298 } else if (mBytesRead != 0) { 4299 // record start succeeds only if first read from audio input 4300 // succeeds 4301 if (mBytesRead > 0) { 4302 mActiveTrack->mState = TrackBase::ACTIVE; 4303 } else { 4304 mActiveTrack.clear(); 4305 } 4306 mStartStopCond.broadcast(); 4307 } 4308 mStandby = false; 4309 } 4310 } 4311 lockEffectChains_l(effectChains); 4312 } 4313 4314 if (mActiveTrack != 0) { 4315 if (mActiveTrack->mState != TrackBase::ACTIVE && 4316 mActiveTrack->mState != TrackBase::RESUMING) { 4317 unlockEffectChains(effectChains); 4318 usleep(kRecordThreadSleepUs); 4319 continue; 4320 } 4321 for (size_t i = 0; i < effectChains.size(); i ++) { 4322 effectChains[i]->process_l(); 4323 } 4324 4325 buffer.frameCount = mFrameCount; 4326 if (LIKELY(mActiveTrack->getNextBuffer(&buffer) == NO_ERROR)) { 4327 size_t framesOut = buffer.frameCount; 4328 if (mResampler == 0) { 4329 // no resampling 4330 while (framesOut) { 4331 size_t framesIn = mFrameCount - mRsmpInIndex; 4332 if (framesIn) { 4333 int8_t *src = (int8_t *)mRsmpInBuffer + mRsmpInIndex * mFrameSize; 4334 int8_t *dst = buffer.i8 + (buffer.frameCount - framesOut) * mActiveTrack->mCblk->frameSize; 4335 if (framesIn > framesOut) 4336 framesIn = framesOut; 4337 mRsmpInIndex += framesIn; 4338 framesOut -= framesIn; 4339 if ((int)mChannelCount == mReqChannelCount || 4340 mFormat != AUDIO_FORMAT_PCM_16_BIT) { 4341 memcpy(dst, src, framesIn * mFrameSize); 4342 } else { 4343 int16_t *src16 = (int16_t *)src; 4344 int16_t *dst16 = (int16_t *)dst; 4345 if (mChannelCount == 1) { 4346 while (framesIn--) { 4347 *dst16++ = *src16; 4348 *dst16++ = *src16++; 4349 } 4350 } else { 4351 while (framesIn--) { 4352 *dst16++ = (int16_t)(((int32_t)*src16 + (int32_t)*(src16 + 1)) >> 1); 4353 src16 += 2; 4354 } 4355 } 4356 } 4357 } 4358 if (framesOut && mFrameCount == mRsmpInIndex) { 4359 if (framesOut == mFrameCount && 4360 ((int)mChannelCount == mReqChannelCount || mFormat != AUDIO_FORMAT_PCM_16_BIT)) { 4361 mBytesRead = mInput->stream->read(mInput->stream, buffer.raw, mInputBytes); 4362 framesOut = 0; 4363 } else { 4364 mBytesRead = mInput->stream->read(mInput->stream, mRsmpInBuffer, mInputBytes); 4365 mRsmpInIndex = 0; 4366 } 4367 if (mBytesRead < 0) { 4368 LOGE("Error reading audio input"); 4369 if (mActiveTrack->mState == TrackBase::ACTIVE) { 4370 // Force input into standby so that it tries to 4371 // recover at next read attempt 4372 mInput->stream->common.standby(&mInput->stream->common); 4373 usleep(kRecordThreadSleepUs); 4374 } 4375 mRsmpInIndex = mFrameCount; 4376 framesOut = 0; 4377 buffer.frameCount = 0; 4378 } 4379 } 4380 } 4381 } else { 4382 // resampling 4383 4384 memset(mRsmpOutBuffer, 0, framesOut * 2 * sizeof(int32_t)); 4385 // alter output frame count as if we were expecting stereo samples 4386 if (mChannelCount == 1 && mReqChannelCount == 1) { 4387 framesOut >>= 1; 4388 } 4389 mResampler->resample(mRsmpOutBuffer, framesOut, this); 4390 // ditherAndClamp() works as long as all buffers returned by mActiveTrack->getNextBuffer() 4391 // are 32 bit aligned which should be always true. 4392 if (mChannelCount == 2 && mReqChannelCount == 1) { 4393 AudioMixer::ditherAndClamp(mRsmpOutBuffer, mRsmpOutBuffer, framesOut); 4394 // the resampler always outputs stereo samples: do post stereo to mono conversion 4395 int16_t *src = (int16_t *)mRsmpOutBuffer; 4396 int16_t *dst = buffer.i16; 4397 while (framesOut--) { 4398 *dst++ = (int16_t)(((int32_t)*src + (int32_t)*(src + 1)) >> 1); 4399 src += 2; 4400 } 4401 } else { 4402 AudioMixer::ditherAndClamp((int32_t *)buffer.raw, mRsmpOutBuffer, framesOut); 4403 } 4404 4405 } 4406 mActiveTrack->releaseBuffer(&buffer); 4407 mActiveTrack->overflow(); 4408 } 4409 // client isn't retrieving buffers fast enough 4410 else { 4411 if (!mActiveTrack->setOverflow()) { 4412 nsecs_t now = systemTime(); 4413 if ((now - lastWarning) > kWarningThrottle) { 4414 LOGW("RecordThread: buffer overflow"); 4415 lastWarning = now; 4416 } 4417 } 4418 // Release the processor for a while before asking for a new buffer. 4419 // This will give the application more chance to read from the buffer and 4420 // clear the overflow. 4421 usleep(kRecordThreadSleepUs); 4422 } 4423 } 4424 // enable changes in effect chain 4425 unlockEffectChains(effectChains); 4426 effectChains.clear(); 4427 } 4428 4429 if (!mStandby) { 4430 mInput->stream->common.standby(&mInput->stream->common); 4431 } 4432 mActiveTrack.clear(); 4433 4434 mStartStopCond.broadcast(); 4435 4436 releaseWakeLock(); 4437 4438 ALOGV("RecordThread %p exiting", this); 4439 return false; 4440} 4441 4442 4443sp<AudioFlinger::RecordThread::RecordTrack> AudioFlinger::RecordThread::createRecordTrack_l( 4444 const sp<AudioFlinger::Client>& client, 4445 uint32_t sampleRate, 4446 int format, 4447 int channelMask, 4448 int frameCount, 4449 uint32_t flags, 4450 int sessionId, 4451 status_t *status) 4452{ 4453 sp<RecordTrack> track; 4454 status_t lStatus; 4455 4456 lStatus = initCheck(); 4457 if (lStatus != NO_ERROR) { 4458 LOGE("Audio driver not initialized."); 4459 goto Exit; 4460 } 4461 4462 { // scope for mLock 4463 Mutex::Autolock _l(mLock); 4464 4465 track = new RecordTrack(this, client, sampleRate, 4466 format, channelMask, frameCount, flags, sessionId); 4467 4468 if (track->getCblk() == NULL) { 4469 lStatus = NO_MEMORY; 4470 goto Exit; 4471 } 4472 4473 mTrack = track.get(); 4474 // disable AEC and NS if the device is a BT SCO headset supporting those pre processings 4475 bool suspend = audio_is_bluetooth_sco_device( 4476 (audio_devices_t)(mDevice & AUDIO_DEVICE_IN_ALL)) && mAudioFlinger->btNrecIsOff(); 4477 setEffectSuspended_l(FX_IID_AEC, suspend, sessionId); 4478 setEffectSuspended_l(FX_IID_NS, suspend, sessionId); 4479 } 4480 lStatus = NO_ERROR; 4481 4482Exit: 4483 if (status) { 4484 *status = lStatus; 4485 } 4486 return track; 4487} 4488 4489status_t AudioFlinger::RecordThread::start(RecordThread::RecordTrack* recordTrack) 4490{ 4491 ALOGV("RecordThread::start"); 4492 sp <ThreadBase> strongMe = this; 4493 status_t status = NO_ERROR; 4494 { 4495 AutoMutex lock(&mLock); 4496 if (mActiveTrack != 0) { 4497 if (recordTrack != mActiveTrack.get()) { 4498 status = -EBUSY; 4499 } else if (mActiveTrack->mState == TrackBase::PAUSING) { 4500 mActiveTrack->mState = TrackBase::ACTIVE; 4501 } 4502 return status; 4503 } 4504 4505 recordTrack->mState = TrackBase::IDLE; 4506 mActiveTrack = recordTrack; 4507 mLock.unlock(); 4508 status_t status = AudioSystem::startInput(mId); 4509 mLock.lock(); 4510 if (status != NO_ERROR) { 4511 mActiveTrack.clear(); 4512 return status; 4513 } 4514 mRsmpInIndex = mFrameCount; 4515 mBytesRead = 0; 4516 if (mResampler != NULL) { 4517 mResampler->reset(); 4518 } 4519 mActiveTrack->mState = TrackBase::RESUMING; 4520 // signal thread to start 4521 ALOGV("Signal record thread"); 4522 mWaitWorkCV.signal(); 4523 // do not wait for mStartStopCond if exiting 4524 if (mExiting) { 4525 mActiveTrack.clear(); 4526 status = INVALID_OPERATION; 4527 goto startError; 4528 } 4529 mStartStopCond.wait(mLock); 4530 if (mActiveTrack == 0) { 4531 ALOGV("Record failed to start"); 4532 status = BAD_VALUE; 4533 goto startError; 4534 } 4535 ALOGV("Record started OK"); 4536 return status; 4537 } 4538startError: 4539 AudioSystem::stopInput(mId); 4540 return status; 4541} 4542 4543void AudioFlinger::RecordThread::stop(RecordThread::RecordTrack* recordTrack) { 4544 ALOGV("RecordThread::stop"); 4545 sp <ThreadBase> strongMe = this; 4546 { 4547 AutoMutex lock(&mLock); 4548 if (mActiveTrack != 0 && recordTrack == mActiveTrack.get()) { 4549 mActiveTrack->mState = TrackBase::PAUSING; 4550 // do not wait for mStartStopCond if exiting 4551 if (mExiting) { 4552 return; 4553 } 4554 mStartStopCond.wait(mLock); 4555 // if we have been restarted, recordTrack == mActiveTrack.get() here 4556 if (mActiveTrack == 0 || recordTrack != mActiveTrack.get()) { 4557 mLock.unlock(); 4558 AudioSystem::stopInput(mId); 4559 mLock.lock(); 4560 ALOGV("Record stopped OK"); 4561 } 4562 } 4563 } 4564} 4565 4566status_t AudioFlinger::RecordThread::dump(int fd, const Vector<String16>& args) 4567{ 4568 const size_t SIZE = 256; 4569 char buffer[SIZE]; 4570 String8 result; 4571 pid_t pid = 0; 4572 4573 snprintf(buffer, SIZE, "\nInput thread %p internals\n", this); 4574 result.append(buffer); 4575 4576 if (mActiveTrack != 0) { 4577 result.append("Active Track:\n"); 4578 result.append(" Clien Fmt Chn mask Session Buf S SRate Serv User\n"); 4579 mActiveTrack->dump(buffer, SIZE); 4580 result.append(buffer); 4581 4582 snprintf(buffer, SIZE, "In index: %d\n", mRsmpInIndex); 4583 result.append(buffer); 4584 snprintf(buffer, SIZE, "In size: %d\n", mInputBytes); 4585 result.append(buffer); 4586 snprintf(buffer, SIZE, "Resampling: %d\n", (mResampler != 0)); 4587 result.append(buffer); 4588 snprintf(buffer, SIZE, "Out channel count: %d\n", mReqChannelCount); 4589 result.append(buffer); 4590 snprintf(buffer, SIZE, "Out sample rate: %d\n", mReqSampleRate); 4591 result.append(buffer); 4592 4593 4594 } else { 4595 result.append("No record client\n"); 4596 } 4597 write(fd, result.string(), result.size()); 4598 4599 dumpBase(fd, args); 4600 dumpEffectChains(fd, args); 4601 4602 return NO_ERROR; 4603} 4604 4605status_t AudioFlinger::RecordThread::getNextBuffer(AudioBufferProvider::Buffer* buffer) 4606{ 4607 size_t framesReq = buffer->frameCount; 4608 size_t framesReady = mFrameCount - mRsmpInIndex; 4609 int channelCount; 4610 4611 if (framesReady == 0) { 4612 mBytesRead = mInput->stream->read(mInput->stream, mRsmpInBuffer, mInputBytes); 4613 if (mBytesRead < 0) { 4614 LOGE("RecordThread::getNextBuffer() Error reading audio input"); 4615 if (mActiveTrack->mState == TrackBase::ACTIVE) { 4616 // Force input into standby so that it tries to 4617 // recover at next read attempt 4618 mInput->stream->common.standby(&mInput->stream->common); 4619 usleep(kRecordThreadSleepUs); 4620 } 4621 buffer->raw = 0; 4622 buffer->frameCount = 0; 4623 return NOT_ENOUGH_DATA; 4624 } 4625 mRsmpInIndex = 0; 4626 framesReady = mFrameCount; 4627 } 4628 4629 if (framesReq > framesReady) { 4630 framesReq = framesReady; 4631 } 4632 4633 if (mChannelCount == 1 && mReqChannelCount == 2) { 4634 channelCount = 1; 4635 } else { 4636 channelCount = 2; 4637 } 4638 buffer->raw = mRsmpInBuffer + mRsmpInIndex * channelCount; 4639 buffer->frameCount = framesReq; 4640 return NO_ERROR; 4641} 4642 4643void AudioFlinger::RecordThread::releaseBuffer(AudioBufferProvider::Buffer* buffer) 4644{ 4645 mRsmpInIndex += buffer->frameCount; 4646 buffer->frameCount = 0; 4647} 4648 4649bool AudioFlinger::RecordThread::checkForNewParameters_l() 4650{ 4651 bool reconfig = false; 4652 4653 while (!mNewParameters.isEmpty()) { 4654 status_t status = NO_ERROR; 4655 String8 keyValuePair = mNewParameters[0]; 4656 AudioParameter param = AudioParameter(keyValuePair); 4657 int value; 4658 int reqFormat = mFormat; 4659 int reqSamplingRate = mReqSampleRate; 4660 int reqChannelCount = mReqChannelCount; 4661 4662 if (param.getInt(String8(AudioParameter::keySamplingRate), value) == NO_ERROR) { 4663 reqSamplingRate = value; 4664 reconfig = true; 4665 } 4666 if (param.getInt(String8(AudioParameter::keyFormat), value) == NO_ERROR) { 4667 reqFormat = value; 4668 reconfig = true; 4669 } 4670 if (param.getInt(String8(AudioParameter::keyChannels), value) == NO_ERROR) { 4671 reqChannelCount = popcount(value); 4672 reconfig = true; 4673 } 4674 if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) { 4675 // do not accept frame count changes if tracks are open as the track buffer 4676 // size depends on frame count and correct behavior would not be garantied 4677 // if frame count is changed after track creation 4678 if (mActiveTrack != 0) { 4679 status = INVALID_OPERATION; 4680 } else { 4681 reconfig = true; 4682 } 4683 } 4684 if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) { 4685 // forward device change to effects that have requested to be 4686 // aware of attached audio device. 4687 for (size_t i = 0; i < mEffectChains.size(); i++) { 4688 mEffectChains[i]->setDevice_l(value); 4689 } 4690 // store input device and output device but do not forward output device to audio HAL. 4691 // Note that status is ignored by the caller for output device 4692 // (see AudioFlinger::setParameters() 4693 if (value & AUDIO_DEVICE_OUT_ALL) { 4694 mDevice &= (uint32_t)~(value & AUDIO_DEVICE_OUT_ALL); 4695 status = BAD_VALUE; 4696 } else { 4697 mDevice &= (uint32_t)~(value & AUDIO_DEVICE_IN_ALL); 4698 // disable AEC and NS if the device is a BT SCO headset supporting those pre processings 4699 if (mTrack != NULL) { 4700 bool suspend = audio_is_bluetooth_sco_device( 4701 (audio_devices_t)value) && mAudioFlinger->btNrecIsOff(); 4702 setEffectSuspended_l(FX_IID_AEC, suspend, mTrack->sessionId()); 4703 setEffectSuspended_l(FX_IID_NS, suspend, mTrack->sessionId()); 4704 } 4705 } 4706 mDevice |= (uint32_t)value; 4707 } 4708 if (status == NO_ERROR) { 4709 status = mInput->stream->common.set_parameters(&mInput->stream->common, keyValuePair.string()); 4710 if (status == INVALID_OPERATION) { 4711 mInput->stream->common.standby(&mInput->stream->common); 4712 status = mInput->stream->common.set_parameters(&mInput->stream->common, keyValuePair.string()); 4713 } 4714 if (reconfig) { 4715 if (status == BAD_VALUE && 4716 reqFormat == mInput->stream->common.get_format(&mInput->stream->common) && 4717 reqFormat == AUDIO_FORMAT_PCM_16_BIT && 4718 ((int)mInput->stream->common.get_sample_rate(&mInput->stream->common) <= (2 * reqSamplingRate)) && 4719 (popcount(mInput->stream->common.get_channels(&mInput->stream->common)) < 3) && 4720 (reqChannelCount < 3)) { 4721 status = NO_ERROR; 4722 } 4723 if (status == NO_ERROR) { 4724 readInputParameters(); 4725 sendConfigEvent_l(AudioSystem::INPUT_CONFIG_CHANGED); 4726 } 4727 } 4728 } 4729 4730 mNewParameters.removeAt(0); 4731 4732 mParamStatus = status; 4733 mParamCond.signal(); 4734 // wait for condition with time out in case the thread calling ThreadBase::setParameters() 4735 // already timed out waiting for the status and will never signal the condition. 4736 mWaitWorkCV.waitRelative(mLock, kSetParametersTimeout); 4737 } 4738 return reconfig; 4739} 4740 4741String8 AudioFlinger::RecordThread::getParameters(const String8& keys) 4742{ 4743 char *s; 4744 String8 out_s8 = String8(); 4745 4746 Mutex::Autolock _l(mLock); 4747 if (initCheck() != NO_ERROR) { 4748 return out_s8; 4749 } 4750 4751 s = mInput->stream->common.get_parameters(&mInput->stream->common, keys.string()); 4752 out_s8 = String8(s); 4753 free(s); 4754 return out_s8; 4755} 4756 4757void AudioFlinger::RecordThread::audioConfigChanged_l(int event, int param) { 4758 AudioSystem::OutputDescriptor desc; 4759 void *param2 = 0; 4760 4761 switch (event) { 4762 case AudioSystem::INPUT_OPENED: 4763 case AudioSystem::INPUT_CONFIG_CHANGED: 4764 desc.channels = mChannelMask; 4765 desc.samplingRate = mSampleRate; 4766 desc.format = mFormat; 4767 desc.frameCount = mFrameCount; 4768 desc.latency = 0; 4769 param2 = &desc; 4770 break; 4771 4772 case AudioSystem::INPUT_CLOSED: 4773 default: 4774 break; 4775 } 4776 mAudioFlinger->audioConfigChanged_l(event, mId, param2); 4777} 4778 4779void AudioFlinger::RecordThread::readInputParameters() 4780{ 4781 if (mRsmpInBuffer) delete mRsmpInBuffer; 4782 if (mRsmpOutBuffer) delete mRsmpOutBuffer; 4783 if (mResampler) delete mResampler; 4784 mResampler = 0; 4785 4786 mSampleRate = mInput->stream->common.get_sample_rate(&mInput->stream->common); 4787 mChannelMask = mInput->stream->common.get_channels(&mInput->stream->common); 4788 mChannelCount = (uint16_t)popcount(mChannelMask); 4789 mFormat = mInput->stream->common.get_format(&mInput->stream->common); 4790 mFrameSize = (uint16_t)audio_stream_frame_size(&mInput->stream->common); 4791 mInputBytes = mInput->stream->common.get_buffer_size(&mInput->stream->common); 4792 mFrameCount = mInputBytes / mFrameSize; 4793 mRsmpInBuffer = new int16_t[mFrameCount * mChannelCount]; 4794 4795 if (mSampleRate != mReqSampleRate && mChannelCount < 3 && mReqChannelCount < 3) 4796 { 4797 int channelCount; 4798 // optmization: if mono to mono, use the resampler in stereo to stereo mode to avoid 4799 // stereo to mono post process as the resampler always outputs stereo. 4800 if (mChannelCount == 1 && mReqChannelCount == 2) { 4801 channelCount = 1; 4802 } else { 4803 channelCount = 2; 4804 } 4805 mResampler = AudioResampler::create(16, channelCount, mReqSampleRate); 4806 mResampler->setSampleRate(mSampleRate); 4807 mResampler->setVolume(AudioMixer::UNITY_GAIN, AudioMixer::UNITY_GAIN); 4808 mRsmpOutBuffer = new int32_t[mFrameCount * 2]; 4809 4810 // optmization: if mono to mono, alter input frame count as if we were inputing stereo samples 4811 if (mChannelCount == 1 && mReqChannelCount == 1) { 4812 mFrameCount >>= 1; 4813 } 4814 4815 } 4816 mRsmpInIndex = mFrameCount; 4817} 4818 4819unsigned int AudioFlinger::RecordThread::getInputFramesLost() 4820{ 4821 Mutex::Autolock _l(mLock); 4822 if (initCheck() != NO_ERROR) { 4823 return 0; 4824 } 4825 4826 return mInput->stream->get_input_frames_lost(mInput->stream); 4827} 4828 4829uint32_t AudioFlinger::RecordThread::hasAudioSession(int sessionId) 4830{ 4831 Mutex::Autolock _l(mLock); 4832 uint32_t result = 0; 4833 if (getEffectChain_l(sessionId) != 0) { 4834 result = EFFECT_SESSION; 4835 } 4836 4837 if (mTrack != NULL && sessionId == mTrack->sessionId()) { 4838 result |= TRACK_SESSION; 4839 } 4840 4841 return result; 4842} 4843 4844AudioFlinger::RecordThread::RecordTrack* AudioFlinger::RecordThread::track() 4845{ 4846 Mutex::Autolock _l(mLock); 4847 return mTrack; 4848} 4849 4850AudioFlinger::AudioStreamIn* AudioFlinger::RecordThread::getInput() 4851{ 4852 Mutex::Autolock _l(mLock); 4853 return mInput; 4854} 4855 4856AudioFlinger::AudioStreamIn* AudioFlinger::RecordThread::clearInput() 4857{ 4858 Mutex::Autolock _l(mLock); 4859 AudioStreamIn *input = mInput; 4860 mInput = NULL; 4861 return input; 4862} 4863 4864// this method must always be called either with ThreadBase mLock held or inside the thread loop 4865audio_stream_t* AudioFlinger::RecordThread::stream() 4866{ 4867 if (mInput == NULL) { 4868 return NULL; 4869 } 4870 return &mInput->stream->common; 4871} 4872 4873 4874// ---------------------------------------------------------------------------- 4875 4876int AudioFlinger::openOutput(uint32_t *pDevices, 4877 uint32_t *pSamplingRate, 4878 uint32_t *pFormat, 4879 uint32_t *pChannels, 4880 uint32_t *pLatencyMs, 4881 uint32_t flags) 4882{ 4883 status_t status; 4884 PlaybackThread *thread = NULL; 4885 mHardwareStatus = AUDIO_HW_OUTPUT_OPEN; 4886 uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0; 4887 uint32_t format = pFormat ? *pFormat : 0; 4888 uint32_t channels = pChannels ? *pChannels : 0; 4889 uint32_t latency = pLatencyMs ? *pLatencyMs : 0; 4890 audio_stream_out_t *outStream; 4891 audio_hw_device_t *outHwDev; 4892 4893 ALOGV("openOutput(), Device %x, SamplingRate %d, Format %d, Channels %x, flags %x", 4894 pDevices ? *pDevices : 0, 4895 samplingRate, 4896 format, 4897 channels, 4898 flags); 4899 4900 if (pDevices == NULL || *pDevices == 0) { 4901 return 0; 4902 } 4903 4904 Mutex::Autolock _l(mLock); 4905 4906 outHwDev = findSuitableHwDev_l(*pDevices); 4907 if (outHwDev == NULL) 4908 return 0; 4909 4910 status = outHwDev->open_output_stream(outHwDev, *pDevices, (int *)&format, 4911 &channels, &samplingRate, &outStream); 4912 ALOGV("openOutput() openOutputStream returned output %p, SamplingRate %d, Format %d, Channels %x, status %d", 4913 outStream, 4914 samplingRate, 4915 format, 4916 channels, 4917 status); 4918 4919 mHardwareStatus = AUDIO_HW_IDLE; 4920 if (outStream != NULL) { 4921 AudioStreamOut *output = new AudioStreamOut(outHwDev, outStream); 4922 int id = nextUniqueId(); 4923 4924 if ((flags & AUDIO_POLICY_OUTPUT_FLAG_DIRECT) || 4925 (format != AUDIO_FORMAT_PCM_16_BIT) || 4926 (channels != AUDIO_CHANNEL_OUT_STEREO)) { 4927 thread = new DirectOutputThread(this, output, id, *pDevices); 4928 ALOGV("openOutput() created direct output: ID %d thread %p", id, thread); 4929 } else { 4930 thread = new MixerThread(this, output, id, *pDevices); 4931 ALOGV("openOutput() created mixer output: ID %d thread %p", id, thread); 4932 } 4933 mPlaybackThreads.add(id, thread); 4934 4935 if (pSamplingRate) *pSamplingRate = samplingRate; 4936 if (pFormat) *pFormat = format; 4937 if (pChannels) *pChannels = channels; 4938 if (pLatencyMs) *pLatencyMs = thread->latency(); 4939 4940 // notify client processes of the new output creation 4941 thread->audioConfigChanged_l(AudioSystem::OUTPUT_OPENED); 4942 return id; 4943 } 4944 4945 return 0; 4946} 4947 4948int AudioFlinger::openDuplicateOutput(int output1, int output2) 4949{ 4950 Mutex::Autolock _l(mLock); 4951 MixerThread *thread1 = checkMixerThread_l(output1); 4952 MixerThread *thread2 = checkMixerThread_l(output2); 4953 4954 if (thread1 == NULL || thread2 == NULL) { 4955 LOGW("openDuplicateOutput() wrong output mixer type for output %d or %d", output1, output2); 4956 return 0; 4957 } 4958 4959 int id = nextUniqueId(); 4960 DuplicatingThread *thread = new DuplicatingThread(this, thread1, id); 4961 thread->addOutputTrack(thread2); 4962 mPlaybackThreads.add(id, thread); 4963 // notify client processes of the new output creation 4964 thread->audioConfigChanged_l(AudioSystem::OUTPUT_OPENED); 4965 return id; 4966} 4967 4968status_t AudioFlinger::closeOutput(int output) 4969{ 4970 // keep strong reference on the playback thread so that 4971 // it is not destroyed while exit() is executed 4972 sp <PlaybackThread> thread; 4973 { 4974 Mutex::Autolock _l(mLock); 4975 thread = checkPlaybackThread_l(output); 4976 if (thread == NULL) { 4977 return BAD_VALUE; 4978 } 4979 4980 ALOGV("closeOutput() %d", output); 4981 4982 if (thread->type() == ThreadBase::MIXER) { 4983 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 4984 if (mPlaybackThreads.valueAt(i)->type() == ThreadBase::DUPLICATING) { 4985 DuplicatingThread *dupThread = (DuplicatingThread *)mPlaybackThreads.valueAt(i).get(); 4986 dupThread->removeOutputTrack((MixerThread *)thread.get()); 4987 } 4988 } 4989 } 4990 void *param2 = 0; 4991 audioConfigChanged_l(AudioSystem::OUTPUT_CLOSED, output, param2); 4992 mPlaybackThreads.removeItem(output); 4993 } 4994 thread->exit(); 4995 4996 if (thread->type() != ThreadBase::DUPLICATING) { 4997 AudioStreamOut *out = thread->clearOutput(); 4998 // from now on thread->mOutput is NULL 4999 out->hwDev->close_output_stream(out->hwDev, out->stream); 5000 delete out; 5001 } 5002 return NO_ERROR; 5003} 5004 5005status_t AudioFlinger::suspendOutput(int output) 5006{ 5007 Mutex::Autolock _l(mLock); 5008 PlaybackThread *thread = checkPlaybackThread_l(output); 5009 5010 if (thread == NULL) { 5011 return BAD_VALUE; 5012 } 5013 5014 ALOGV("suspendOutput() %d", output); 5015 thread->suspend(); 5016 5017 return NO_ERROR; 5018} 5019 5020status_t AudioFlinger::restoreOutput(int output) 5021{ 5022 Mutex::Autolock _l(mLock); 5023 PlaybackThread *thread = checkPlaybackThread_l(output); 5024 5025 if (thread == NULL) { 5026 return BAD_VALUE; 5027 } 5028 5029 ALOGV("restoreOutput() %d", output); 5030 5031 thread->restore(); 5032 5033 return NO_ERROR; 5034} 5035 5036int AudioFlinger::openInput(uint32_t *pDevices, 5037 uint32_t *pSamplingRate, 5038 uint32_t *pFormat, 5039 uint32_t *pChannels, 5040 uint32_t acoustics) 5041{ 5042 status_t status; 5043 RecordThread *thread = NULL; 5044 uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0; 5045 uint32_t format = pFormat ? *pFormat : 0; 5046 uint32_t channels = pChannels ? *pChannels : 0; 5047 uint32_t reqSamplingRate = samplingRate; 5048 uint32_t reqFormat = format; 5049 uint32_t reqChannels = channels; 5050 audio_stream_in_t *inStream; 5051 audio_hw_device_t *inHwDev; 5052 5053 if (pDevices == NULL || *pDevices == 0) { 5054 return 0; 5055 } 5056 5057 Mutex::Autolock _l(mLock); 5058 5059 inHwDev = findSuitableHwDev_l(*pDevices); 5060 if (inHwDev == NULL) 5061 return 0; 5062 5063 status = inHwDev->open_input_stream(inHwDev, *pDevices, (int *)&format, 5064 &channels, &samplingRate, 5065 (audio_in_acoustics_t)acoustics, 5066 &inStream); 5067 ALOGV("openInput() openInputStream returned input %p, SamplingRate %d, Format %d, Channels %x, acoustics %x, status %d", 5068 inStream, 5069 samplingRate, 5070 format, 5071 channels, 5072 acoustics, 5073 status); 5074 5075 // If the input could not be opened with the requested parameters and we can handle the conversion internally, 5076 // try to open again with the proposed parameters. The AudioFlinger can resample the input and do mono to stereo 5077 // or stereo to mono conversions on 16 bit PCM inputs. 5078 if (inStream == NULL && status == BAD_VALUE && 5079 reqFormat == format && format == AUDIO_FORMAT_PCM_16_BIT && 5080 (samplingRate <= 2 * reqSamplingRate) && 5081 (popcount(channels) < 3) && (popcount(reqChannels) < 3)) { 5082 ALOGV("openInput() reopening with proposed sampling rate and channels"); 5083 status = inHwDev->open_input_stream(inHwDev, *pDevices, (int *)&format, 5084 &channels, &samplingRate, 5085 (audio_in_acoustics_t)acoustics, 5086 &inStream); 5087 } 5088 5089 if (inStream != NULL) { 5090 AudioStreamIn *input = new AudioStreamIn(inHwDev, inStream); 5091 5092 int id = nextUniqueId(); 5093 // Start record thread 5094 // RecorThread require both input and output device indication to forward to audio 5095 // pre processing modules 5096 uint32_t device = (*pDevices) | primaryOutputDevice_l(); 5097 thread = new RecordThread(this, 5098 input, 5099 reqSamplingRate, 5100 reqChannels, 5101 id, 5102 device); 5103 mRecordThreads.add(id, thread); 5104 ALOGV("openInput() created record thread: ID %d thread %p", id, thread); 5105 if (pSamplingRate) *pSamplingRate = reqSamplingRate; 5106 if (pFormat) *pFormat = format; 5107 if (pChannels) *pChannels = reqChannels; 5108 5109 input->stream->common.standby(&input->stream->common); 5110 5111 // notify client processes of the new input creation 5112 thread->audioConfigChanged_l(AudioSystem::INPUT_OPENED); 5113 return id; 5114 } 5115 5116 return 0; 5117} 5118 5119status_t AudioFlinger::closeInput(int input) 5120{ 5121 // keep strong reference on the record thread so that 5122 // it is not destroyed while exit() is executed 5123 sp <RecordThread> thread; 5124 { 5125 Mutex::Autolock _l(mLock); 5126 thread = checkRecordThread_l(input); 5127 if (thread == NULL) { 5128 return BAD_VALUE; 5129 } 5130 5131 ALOGV("closeInput() %d", input); 5132 void *param2 = 0; 5133 audioConfigChanged_l(AudioSystem::INPUT_CLOSED, input, param2); 5134 mRecordThreads.removeItem(input); 5135 } 5136 thread->exit(); 5137 5138 AudioStreamIn *in = thread->clearInput(); 5139 // from now on thread->mInput is NULL 5140 in->hwDev->close_input_stream(in->hwDev, in->stream); 5141 delete in; 5142 5143 return NO_ERROR; 5144} 5145 5146status_t AudioFlinger::setStreamOutput(uint32_t stream, int output) 5147{ 5148 Mutex::Autolock _l(mLock); 5149 MixerThread *dstThread = checkMixerThread_l(output); 5150 if (dstThread == NULL) { 5151 LOGW("setStreamOutput() bad output id %d", output); 5152 return BAD_VALUE; 5153 } 5154 5155 ALOGV("setStreamOutput() stream %d to output %d", stream, output); 5156 audioConfigChanged_l(AudioSystem::STREAM_CONFIG_CHANGED, output, &stream); 5157 5158 dstThread->setStreamValid(stream, true); 5159 5160 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 5161 PlaybackThread *thread = mPlaybackThreads.valueAt(i).get(); 5162 if (thread != dstThread && 5163 thread->type() != ThreadBase::DIRECT) { 5164 MixerThread *srcThread = (MixerThread *)thread; 5165 srcThread->setStreamValid(stream, false); 5166 srcThread->invalidateTracks(stream); 5167 } 5168 } 5169 5170 return NO_ERROR; 5171} 5172 5173 5174int AudioFlinger::newAudioSessionId() 5175{ 5176 return nextUniqueId(); 5177} 5178 5179void AudioFlinger::acquireAudioSessionId(int audioSession) 5180{ 5181 Mutex::Autolock _l(mLock); 5182 int caller = IPCThreadState::self()->getCallingPid(); 5183 ALOGV("acquiring %d from %d", audioSession, caller); 5184 int num = mAudioSessionRefs.size(); 5185 for (int i = 0; i< num; i++) { 5186 AudioSessionRef *ref = mAudioSessionRefs.editItemAt(i); 5187 if (ref->sessionid == audioSession && ref->pid == caller) { 5188 ref->cnt++; 5189 ALOGV(" incremented refcount to %d", ref->cnt); 5190 return; 5191 } 5192 } 5193 AudioSessionRef *ref = new AudioSessionRef(); 5194 ref->sessionid = audioSession; 5195 ref->pid = caller; 5196 ref->cnt = 1; 5197 mAudioSessionRefs.push(ref); 5198 ALOGV(" added new entry for %d", ref->sessionid); 5199} 5200 5201void AudioFlinger::releaseAudioSessionId(int audioSession) 5202{ 5203 Mutex::Autolock _l(mLock); 5204 int caller = IPCThreadState::self()->getCallingPid(); 5205 ALOGV("releasing %d from %d", audioSession, caller); 5206 int num = mAudioSessionRefs.size(); 5207 for (int i = 0; i< num; i++) { 5208 AudioSessionRef *ref = mAudioSessionRefs.itemAt(i); 5209 if (ref->sessionid == audioSession && ref->pid == caller) { 5210 ref->cnt--; 5211 ALOGV(" decremented refcount to %d", ref->cnt); 5212 if (ref->cnt == 0) { 5213 mAudioSessionRefs.removeAt(i); 5214 delete ref; 5215 purgeStaleEffects_l(); 5216 } 5217 return; 5218 } 5219 } 5220 LOGW("session id %d not found for pid %d", audioSession, caller); 5221} 5222 5223void AudioFlinger::purgeStaleEffects_l() { 5224 5225 ALOGV("purging stale effects"); 5226 5227 Vector< sp<EffectChain> > chains; 5228 5229 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 5230 sp<PlaybackThread> t = mPlaybackThreads.valueAt(i); 5231 for (size_t j = 0; j < t->mEffectChains.size(); j++) { 5232 sp<EffectChain> ec = t->mEffectChains[j]; 5233 if (ec->sessionId() > AUDIO_SESSION_OUTPUT_MIX) { 5234 chains.push(ec); 5235 } 5236 } 5237 } 5238 for (size_t i = 0; i < mRecordThreads.size(); i++) { 5239 sp<RecordThread> t = mRecordThreads.valueAt(i); 5240 for (size_t j = 0; j < t->mEffectChains.size(); j++) { 5241 sp<EffectChain> ec = t->mEffectChains[j]; 5242 chains.push(ec); 5243 } 5244 } 5245 5246 for (size_t i = 0; i < chains.size(); i++) { 5247 sp<EffectChain> ec = chains[i]; 5248 int sessionid = ec->sessionId(); 5249 sp<ThreadBase> t = ec->mThread.promote(); 5250 if (t == 0) { 5251 continue; 5252 } 5253 size_t numsessionrefs = mAudioSessionRefs.size(); 5254 bool found = false; 5255 for (size_t k = 0; k < numsessionrefs; k++) { 5256 AudioSessionRef *ref = mAudioSessionRefs.itemAt(k); 5257 if (ref->sessionid == sessionid) { 5258 ALOGV(" session %d still exists for %d with %d refs", 5259 sessionid, ref->pid, ref->cnt); 5260 found = true; 5261 break; 5262 } 5263 } 5264 if (!found) { 5265 // remove all effects from the chain 5266 while (ec->mEffects.size()) { 5267 sp<EffectModule> effect = ec->mEffects[0]; 5268 effect->unPin(); 5269 Mutex::Autolock _l (t->mLock); 5270 t->removeEffect_l(effect); 5271 for (size_t j = 0; j < effect->mHandles.size(); j++) { 5272 sp<EffectHandle> handle = effect->mHandles[j].promote(); 5273 if (handle != 0) { 5274 handle->mEffect.clear(); 5275 if (handle->mHasControl && handle->mEnabled) { 5276 t->checkSuspendOnEffectEnabled_l(effect, false, effect->sessionId()); 5277 } 5278 } 5279 } 5280 AudioSystem::unregisterEffect(effect->id()); 5281 } 5282 } 5283 } 5284 return; 5285} 5286 5287// checkPlaybackThread_l() must be called with AudioFlinger::mLock held 5288AudioFlinger::PlaybackThread *AudioFlinger::checkPlaybackThread_l(int output) const 5289{ 5290 PlaybackThread *thread = NULL; 5291 if (mPlaybackThreads.indexOfKey(output) >= 0) { 5292 thread = (PlaybackThread *)mPlaybackThreads.valueFor(output).get(); 5293 } 5294 return thread; 5295} 5296 5297// checkMixerThread_l() must be called with AudioFlinger::mLock held 5298AudioFlinger::MixerThread *AudioFlinger::checkMixerThread_l(int output) const 5299{ 5300 PlaybackThread *thread = checkPlaybackThread_l(output); 5301 if (thread != NULL) { 5302 if (thread->type() == ThreadBase::DIRECT) { 5303 thread = NULL; 5304 } 5305 } 5306 return (MixerThread *)thread; 5307} 5308 5309// checkRecordThread_l() must be called with AudioFlinger::mLock held 5310AudioFlinger::RecordThread *AudioFlinger::checkRecordThread_l(int input) const 5311{ 5312 RecordThread *thread = NULL; 5313 if (mRecordThreads.indexOfKey(input) >= 0) { 5314 thread = (RecordThread *)mRecordThreads.valueFor(input).get(); 5315 } 5316 return thread; 5317} 5318 5319uint32_t AudioFlinger::nextUniqueId() 5320{ 5321 return android_atomic_inc(&mNextUniqueId); 5322} 5323 5324AudioFlinger::PlaybackThread *AudioFlinger::primaryPlaybackThread_l() 5325{ 5326 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 5327 PlaybackThread *thread = mPlaybackThreads.valueAt(i).get(); 5328 AudioStreamOut *output = thread->getOutput(); 5329 if (output != NULL && output->hwDev == mPrimaryHardwareDev) { 5330 return thread; 5331 } 5332 } 5333 return NULL; 5334} 5335 5336uint32_t AudioFlinger::primaryOutputDevice_l() 5337{ 5338 PlaybackThread *thread = primaryPlaybackThread_l(); 5339 5340 if (thread == NULL) { 5341 return 0; 5342 } 5343 5344 return thread->device(); 5345} 5346 5347 5348// ---------------------------------------------------------------------------- 5349// Effect management 5350// ---------------------------------------------------------------------------- 5351 5352 5353status_t AudioFlinger::queryNumberEffects(uint32_t *numEffects) 5354{ 5355 Mutex::Autolock _l(mLock); 5356 return EffectQueryNumberEffects(numEffects); 5357} 5358 5359status_t AudioFlinger::queryEffect(uint32_t index, effect_descriptor_t *descriptor) 5360{ 5361 Mutex::Autolock _l(mLock); 5362 return EffectQueryEffect(index, descriptor); 5363} 5364 5365status_t AudioFlinger::getEffectDescriptor(effect_uuid_t *pUuid, effect_descriptor_t *descriptor) 5366{ 5367 Mutex::Autolock _l(mLock); 5368 return EffectGetDescriptor(pUuid, descriptor); 5369} 5370 5371 5372sp<IEffect> AudioFlinger::createEffect(pid_t pid, 5373 effect_descriptor_t *pDesc, 5374 const sp<IEffectClient>& effectClient, 5375 int32_t priority, 5376 int io, 5377 int sessionId, 5378 status_t *status, 5379 int *id, 5380 int *enabled) 5381{ 5382 status_t lStatus = NO_ERROR; 5383 sp<EffectHandle> handle; 5384 effect_descriptor_t desc; 5385 sp<Client> client; 5386 wp<Client> wclient; 5387 5388 ALOGV("createEffect pid %d, client %p, priority %d, sessionId %d, io %d", 5389 pid, effectClient.get(), priority, sessionId, io); 5390 5391 if (pDesc == NULL) { 5392 lStatus = BAD_VALUE; 5393 goto Exit; 5394 } 5395 5396 // check audio settings permission for global effects 5397 if (sessionId == AUDIO_SESSION_OUTPUT_MIX && !settingsAllowed()) { 5398 lStatus = PERMISSION_DENIED; 5399 goto Exit; 5400 } 5401 5402 // Session AUDIO_SESSION_OUTPUT_STAGE is reserved for output stage effects 5403 // that can only be created by audio policy manager (running in same process) 5404 if (sessionId == AUDIO_SESSION_OUTPUT_STAGE && getpid() != pid) { 5405 lStatus = PERMISSION_DENIED; 5406 goto Exit; 5407 } 5408 5409 if (io == 0) { 5410 if (sessionId == AUDIO_SESSION_OUTPUT_STAGE) { 5411 // output must be specified by AudioPolicyManager when using session 5412 // AUDIO_SESSION_OUTPUT_STAGE 5413 lStatus = BAD_VALUE; 5414 goto Exit; 5415 } else if (sessionId == AUDIO_SESSION_OUTPUT_MIX) { 5416 // if the output returned by getOutputForEffect() is removed before we lock the 5417 // mutex below, the call to checkPlaybackThread_l(io) below will detect it 5418 // and we will exit safely 5419 io = AudioSystem::getOutputForEffect(&desc); 5420 } 5421 } 5422 5423 { 5424 Mutex::Autolock _l(mLock); 5425 5426 5427 if (!EffectIsNullUuid(&pDesc->uuid)) { 5428 // if uuid is specified, request effect descriptor 5429 lStatus = EffectGetDescriptor(&pDesc->uuid, &desc); 5430 if (lStatus < 0) { 5431 LOGW("createEffect() error %d from EffectGetDescriptor", lStatus); 5432 goto Exit; 5433 } 5434 } else { 5435 // if uuid is not specified, look for an available implementation 5436 // of the required type in effect factory 5437 if (EffectIsNullUuid(&pDesc->type)) { 5438 LOGW("createEffect() no effect type"); 5439 lStatus = BAD_VALUE; 5440 goto Exit; 5441 } 5442 uint32_t numEffects = 0; 5443 effect_descriptor_t d; 5444 d.flags = 0; // prevent compiler warning 5445 bool found = false; 5446 5447 lStatus = EffectQueryNumberEffects(&numEffects); 5448 if (lStatus < 0) { 5449 LOGW("createEffect() error %d from EffectQueryNumberEffects", lStatus); 5450 goto Exit; 5451 } 5452 for (uint32_t i = 0; i < numEffects; i++) { 5453 lStatus = EffectQueryEffect(i, &desc); 5454 if (lStatus < 0) { 5455 LOGW("createEffect() error %d from EffectQueryEffect", lStatus); 5456 continue; 5457 } 5458 if (memcmp(&desc.type, &pDesc->type, sizeof(effect_uuid_t)) == 0) { 5459 // If matching type found save effect descriptor. If the session is 5460 // 0 and the effect is not auxiliary, continue enumeration in case 5461 // an auxiliary version of this effect type is available 5462 found = true; 5463 memcpy(&d, &desc, sizeof(effect_descriptor_t)); 5464 if (sessionId != AUDIO_SESSION_OUTPUT_MIX || 5465 (desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5466 break; 5467 } 5468 } 5469 } 5470 if (!found) { 5471 lStatus = BAD_VALUE; 5472 LOGW("createEffect() effect not found"); 5473 goto Exit; 5474 } 5475 // For same effect type, chose auxiliary version over insert version if 5476 // connect to output mix (Compliance to OpenSL ES) 5477 if (sessionId == AUDIO_SESSION_OUTPUT_MIX && 5478 (d.flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_AUXILIARY) { 5479 memcpy(&desc, &d, sizeof(effect_descriptor_t)); 5480 } 5481 } 5482 5483 // Do not allow auxiliary effects on a session different from 0 (output mix) 5484 if (sessionId != AUDIO_SESSION_OUTPUT_MIX && 5485 (desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5486 lStatus = INVALID_OPERATION; 5487 goto Exit; 5488 } 5489 5490 // check recording permission for visualizer 5491 if ((memcmp(&desc.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0) && 5492 !recordingAllowed()) { 5493 lStatus = PERMISSION_DENIED; 5494 goto Exit; 5495 } 5496 5497 // return effect descriptor 5498 memcpy(pDesc, &desc, sizeof(effect_descriptor_t)); 5499 5500 // If output is not specified try to find a matching audio session ID in one of the 5501 // output threads. 5502 // If output is 0 here, sessionId is neither SESSION_OUTPUT_STAGE nor SESSION_OUTPUT_MIX 5503 // because of code checking output when entering the function. 5504 // Note: io is never 0 when creating an effect on an input 5505 if (io == 0) { 5506 // look for the thread where the specified audio session is present 5507 for (size_t i = 0; i < mPlaybackThreads.size(); i++) { 5508 if (mPlaybackThreads.valueAt(i)->hasAudioSession(sessionId) != 0) { 5509 io = mPlaybackThreads.keyAt(i); 5510 break; 5511 } 5512 } 5513 if (io == 0) { 5514 for (size_t i = 0; i < mRecordThreads.size(); i++) { 5515 if (mRecordThreads.valueAt(i)->hasAudioSession(sessionId) != 0) { 5516 io = mRecordThreads.keyAt(i); 5517 break; 5518 } 5519 } 5520 } 5521 // If no output thread contains the requested session ID, default to 5522 // first output. The effect chain will be moved to the correct output 5523 // thread when a track with the same session ID is created 5524 if (io == 0 && mPlaybackThreads.size()) { 5525 io = mPlaybackThreads.keyAt(0); 5526 } 5527 ALOGV("createEffect() got io %d for effect %s", io, desc.name); 5528 } 5529 ThreadBase *thread = checkRecordThread_l(io); 5530 if (thread == NULL) { 5531 thread = checkPlaybackThread_l(io); 5532 if (thread == NULL) { 5533 LOGE("createEffect() unknown output thread"); 5534 lStatus = BAD_VALUE; 5535 goto Exit; 5536 } 5537 } 5538 5539 wclient = mClients.valueFor(pid); 5540 5541 if (wclient != NULL) { 5542 client = wclient.promote(); 5543 } else { 5544 client = new Client(this, pid); 5545 mClients.add(pid, client); 5546 } 5547 5548 // create effect on selected output thread 5549 handle = thread->createEffect_l(client, effectClient, priority, sessionId, 5550 &desc, enabled, &lStatus); 5551 if (handle != 0 && id != NULL) { 5552 *id = handle->id(); 5553 } 5554 } 5555 5556Exit: 5557 if(status) { 5558 *status = lStatus; 5559 } 5560 return handle; 5561} 5562 5563status_t AudioFlinger::moveEffects(int sessionId, int srcOutput, int dstOutput) 5564{ 5565 ALOGV("moveEffects() session %d, srcOutput %d, dstOutput %d", 5566 sessionId, srcOutput, dstOutput); 5567 Mutex::Autolock _l(mLock); 5568 if (srcOutput == dstOutput) { 5569 LOGW("moveEffects() same dst and src outputs %d", dstOutput); 5570 return NO_ERROR; 5571 } 5572 PlaybackThread *srcThread = checkPlaybackThread_l(srcOutput); 5573 if (srcThread == NULL) { 5574 LOGW("moveEffects() bad srcOutput %d", srcOutput); 5575 return BAD_VALUE; 5576 } 5577 PlaybackThread *dstThread = checkPlaybackThread_l(dstOutput); 5578 if (dstThread == NULL) { 5579 LOGW("moveEffects() bad dstOutput %d", dstOutput); 5580 return BAD_VALUE; 5581 } 5582 5583 Mutex::Autolock _dl(dstThread->mLock); 5584 Mutex::Autolock _sl(srcThread->mLock); 5585 moveEffectChain_l(sessionId, srcThread, dstThread, false); 5586 5587 return NO_ERROR; 5588} 5589 5590// moveEffectChain_l must be called with both srcThread and dstThread mLocks held 5591status_t AudioFlinger::moveEffectChain_l(int sessionId, 5592 AudioFlinger::PlaybackThread *srcThread, 5593 AudioFlinger::PlaybackThread *dstThread, 5594 bool reRegister) 5595{ 5596 ALOGV("moveEffectChain_l() session %d from thread %p to thread %p", 5597 sessionId, srcThread, dstThread); 5598 5599 sp<EffectChain> chain = srcThread->getEffectChain_l(sessionId); 5600 if (chain == 0) { 5601 LOGW("moveEffectChain_l() effect chain for session %d not on source thread %p", 5602 sessionId, srcThread); 5603 return INVALID_OPERATION; 5604 } 5605 5606 // remove chain first. This is useful only if reconfiguring effect chain on same output thread, 5607 // so that a new chain is created with correct parameters when first effect is added. This is 5608 // otherwise unnecessary as removeEffect_l() will remove the chain when last effect is 5609 // removed. 5610 srcThread->removeEffectChain_l(chain); 5611 5612 // transfer all effects one by one so that new effect chain is created on new thread with 5613 // correct buffer sizes and audio parameters and effect engines reconfigured accordingly 5614 int dstOutput = dstThread->id(); 5615 sp<EffectChain> dstChain; 5616 uint32_t strategy = 0; // prevent compiler warning 5617 sp<EffectModule> effect = chain->getEffectFromId_l(0); 5618 while (effect != 0) { 5619 srcThread->removeEffect_l(effect); 5620 dstThread->addEffect_l(effect); 5621 // removeEffect_l() has stopped the effect if it was active so it must be restarted 5622 if (effect->state() == EffectModule::ACTIVE || 5623 effect->state() == EffectModule::STOPPING) { 5624 effect->start(); 5625 } 5626 // if the move request is not received from audio policy manager, the effect must be 5627 // re-registered with the new strategy and output 5628 if (dstChain == 0) { 5629 dstChain = effect->chain().promote(); 5630 if (dstChain == 0) { 5631 LOGW("moveEffectChain_l() cannot get chain from effect %p", effect.get()); 5632 srcThread->addEffect_l(effect); 5633 return NO_INIT; 5634 } 5635 strategy = dstChain->strategy(); 5636 } 5637 if (reRegister) { 5638 AudioSystem::unregisterEffect(effect->id()); 5639 AudioSystem::registerEffect(&effect->desc(), 5640 dstOutput, 5641 strategy, 5642 sessionId, 5643 effect->id()); 5644 } 5645 effect = chain->getEffectFromId_l(0); 5646 } 5647 5648 return NO_ERROR; 5649} 5650 5651 5652// PlaybackThread::createEffect_l() must be called with AudioFlinger::mLock held 5653sp<AudioFlinger::EffectHandle> AudioFlinger::ThreadBase::createEffect_l( 5654 const sp<AudioFlinger::Client>& client, 5655 const sp<IEffectClient>& effectClient, 5656 int32_t priority, 5657 int sessionId, 5658 effect_descriptor_t *desc, 5659 int *enabled, 5660 status_t *status 5661 ) 5662{ 5663 sp<EffectModule> effect; 5664 sp<EffectHandle> handle; 5665 status_t lStatus; 5666 sp<EffectChain> chain; 5667 bool chainCreated = false; 5668 bool effectCreated = false; 5669 bool effectRegistered = false; 5670 5671 lStatus = initCheck(); 5672 if (lStatus != NO_ERROR) { 5673 LOGW("createEffect_l() Audio driver not initialized."); 5674 goto Exit; 5675 } 5676 5677 // Do not allow effects with session ID 0 on direct output or duplicating threads 5678 // TODO: add rule for hw accelerated effects on direct outputs with non PCM format 5679 if (sessionId == AUDIO_SESSION_OUTPUT_MIX && mType != MIXER) { 5680 LOGW("createEffect_l() Cannot add auxiliary effect %s to session %d", 5681 desc->name, sessionId); 5682 lStatus = BAD_VALUE; 5683 goto Exit; 5684 } 5685 // Only Pre processor effects are allowed on input threads and only on input threads 5686 if ((mType == RECORD && 5687 (desc->flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_PRE_PROC) || 5688 (mType != RECORD && 5689 (desc->flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC)) { 5690 LOGW("createEffect_l() effect %s (flags %08x) created on wrong thread type %d", 5691 desc->name, desc->flags, mType); 5692 lStatus = BAD_VALUE; 5693 goto Exit; 5694 } 5695 5696 ALOGV("createEffect_l() thread %p effect %s on session %d", this, desc->name, sessionId); 5697 5698 { // scope for mLock 5699 Mutex::Autolock _l(mLock); 5700 5701 // check for existing effect chain with the requested audio session 5702 chain = getEffectChain_l(sessionId); 5703 if (chain == 0) { 5704 // create a new chain for this session 5705 ALOGV("createEffect_l() new effect chain for session %d", sessionId); 5706 chain = new EffectChain(this, sessionId); 5707 addEffectChain_l(chain); 5708 chain->setStrategy(getStrategyForSession_l(sessionId)); 5709 chainCreated = true; 5710 } else { 5711 effect = chain->getEffectFromDesc_l(desc); 5712 } 5713 5714 ALOGV("createEffect_l() got effect %p on chain %p", effect == 0 ? 0 : effect.get(), chain.get()); 5715 5716 if (effect == 0) { 5717 int id = mAudioFlinger->nextUniqueId(); 5718 // Check CPU and memory usage 5719 lStatus = AudioSystem::registerEffect(desc, mId, chain->strategy(), sessionId, id); 5720 if (lStatus != NO_ERROR) { 5721 goto Exit; 5722 } 5723 effectRegistered = true; 5724 // create a new effect module if none present in the chain 5725 effect = new EffectModule(this, chain, desc, id, sessionId); 5726 lStatus = effect->status(); 5727 if (lStatus != NO_ERROR) { 5728 goto Exit; 5729 } 5730 lStatus = chain->addEffect_l(effect); 5731 if (lStatus != NO_ERROR) { 5732 goto Exit; 5733 } 5734 effectCreated = true; 5735 5736 effect->setDevice(mDevice); 5737 effect->setMode(mAudioFlinger->getMode()); 5738 } 5739 // create effect handle and connect it to effect module 5740 handle = new EffectHandle(effect, client, effectClient, priority); 5741 lStatus = effect->addHandle(handle); 5742 if (enabled) { 5743 *enabled = (int)effect->isEnabled(); 5744 } 5745 } 5746 5747Exit: 5748 if (lStatus != NO_ERROR && lStatus != ALREADY_EXISTS) { 5749 Mutex::Autolock _l(mLock); 5750 if (effectCreated) { 5751 chain->removeEffect_l(effect); 5752 } 5753 if (effectRegistered) { 5754 AudioSystem::unregisterEffect(effect->id()); 5755 } 5756 if (chainCreated) { 5757 removeEffectChain_l(chain); 5758 } 5759 handle.clear(); 5760 } 5761 5762 if(status) { 5763 *status = lStatus; 5764 } 5765 return handle; 5766} 5767 5768sp<AudioFlinger::EffectModule> AudioFlinger::ThreadBase::getEffect_l(int sessionId, int effectId) 5769{ 5770 sp<EffectModule> effect; 5771 5772 sp<EffectChain> chain = getEffectChain_l(sessionId); 5773 if (chain != 0) { 5774 effect = chain->getEffectFromId_l(effectId); 5775 } 5776 return effect; 5777} 5778 5779// PlaybackThread::addEffect_l() must be called with AudioFlinger::mLock and 5780// PlaybackThread::mLock held 5781status_t AudioFlinger::ThreadBase::addEffect_l(const sp<EffectModule>& effect) 5782{ 5783 // check for existing effect chain with the requested audio session 5784 int sessionId = effect->sessionId(); 5785 sp<EffectChain> chain = getEffectChain_l(sessionId); 5786 bool chainCreated = false; 5787 5788 if (chain == 0) { 5789 // create a new chain for this session 5790 ALOGV("addEffect_l() new effect chain for session %d", sessionId); 5791 chain = new EffectChain(this, sessionId); 5792 addEffectChain_l(chain); 5793 chain->setStrategy(getStrategyForSession_l(sessionId)); 5794 chainCreated = true; 5795 } 5796 ALOGV("addEffect_l() %p chain %p effect %p", this, chain.get(), effect.get()); 5797 5798 if (chain->getEffectFromId_l(effect->id()) != 0) { 5799 LOGW("addEffect_l() %p effect %s already present in chain %p", 5800 this, effect->desc().name, chain.get()); 5801 return BAD_VALUE; 5802 } 5803 5804 status_t status = chain->addEffect_l(effect); 5805 if (status != NO_ERROR) { 5806 if (chainCreated) { 5807 removeEffectChain_l(chain); 5808 } 5809 return status; 5810 } 5811 5812 effect->setDevice(mDevice); 5813 effect->setMode(mAudioFlinger->getMode()); 5814 return NO_ERROR; 5815} 5816 5817void AudioFlinger::ThreadBase::removeEffect_l(const sp<EffectModule>& effect) { 5818 5819 ALOGV("removeEffect_l() %p effect %p", this, effect.get()); 5820 effect_descriptor_t desc = effect->desc(); 5821 if ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 5822 detachAuxEffect_l(effect->id()); 5823 } 5824 5825 sp<EffectChain> chain = effect->chain().promote(); 5826 if (chain != 0) { 5827 // remove effect chain if removing last effect 5828 if (chain->removeEffect_l(effect) == 0) { 5829 removeEffectChain_l(chain); 5830 } 5831 } else { 5832 LOGW("removeEffect_l() %p cannot promote chain for effect %p", this, effect.get()); 5833 } 5834} 5835 5836void AudioFlinger::ThreadBase::lockEffectChains_l( 5837 Vector<sp <AudioFlinger::EffectChain> >& effectChains) 5838{ 5839 effectChains = mEffectChains; 5840 for (size_t i = 0; i < mEffectChains.size(); i++) { 5841 mEffectChains[i]->lock(); 5842 } 5843} 5844 5845void AudioFlinger::ThreadBase::unlockEffectChains( 5846 Vector<sp <AudioFlinger::EffectChain> >& effectChains) 5847{ 5848 for (size_t i = 0; i < effectChains.size(); i++) { 5849 effectChains[i]->unlock(); 5850 } 5851} 5852 5853sp<AudioFlinger::EffectChain> AudioFlinger::ThreadBase::getEffectChain(int sessionId) 5854{ 5855 Mutex::Autolock _l(mLock); 5856 return getEffectChain_l(sessionId); 5857} 5858 5859sp<AudioFlinger::EffectChain> AudioFlinger::ThreadBase::getEffectChain_l(int sessionId) 5860{ 5861 sp<EffectChain> chain; 5862 5863 size_t size = mEffectChains.size(); 5864 for (size_t i = 0; i < size; i++) { 5865 if (mEffectChains[i]->sessionId() == sessionId) { 5866 chain = mEffectChains[i]; 5867 break; 5868 } 5869 } 5870 return chain; 5871} 5872 5873void AudioFlinger::ThreadBase::setMode(uint32_t mode) 5874{ 5875 Mutex::Autolock _l(mLock); 5876 size_t size = mEffectChains.size(); 5877 for (size_t i = 0; i < size; i++) { 5878 mEffectChains[i]->setMode_l(mode); 5879 } 5880} 5881 5882void AudioFlinger::ThreadBase::disconnectEffect(const sp<EffectModule>& effect, 5883 const wp<EffectHandle>& handle, 5884 bool unpiniflast) { 5885 5886 Mutex::Autolock _l(mLock); 5887 ALOGV("disconnectEffect() %p effect %p", this, effect.get()); 5888 // delete the effect module if removing last handle on it 5889 if (effect->removeHandle(handle) == 0) { 5890 if (!effect->isPinned() || unpiniflast) { 5891 removeEffect_l(effect); 5892 AudioSystem::unregisterEffect(effect->id()); 5893 } 5894 } 5895} 5896 5897status_t AudioFlinger::PlaybackThread::addEffectChain_l(const sp<EffectChain>& chain) 5898{ 5899 int session = chain->sessionId(); 5900 int16_t *buffer = mMixBuffer; 5901 bool ownsBuffer = false; 5902 5903 ALOGV("addEffectChain_l() %p on thread %p for session %d", chain.get(), this, session); 5904 if (session > 0) { 5905 // Only one effect chain can be present in direct output thread and it uses 5906 // the mix buffer as input 5907 if (mType != DIRECT) { 5908 size_t numSamples = mFrameCount * mChannelCount; 5909 buffer = new int16_t[numSamples]; 5910 memset(buffer, 0, numSamples * sizeof(int16_t)); 5911 ALOGV("addEffectChain_l() creating new input buffer %p session %d", buffer, session); 5912 ownsBuffer = true; 5913 } 5914 5915 // Attach all tracks with same session ID to this chain. 5916 for (size_t i = 0; i < mTracks.size(); ++i) { 5917 sp<Track> track = mTracks[i]; 5918 if (session == track->sessionId()) { 5919 ALOGV("addEffectChain_l() track->setMainBuffer track %p buffer %p", track.get(), buffer); 5920 track->setMainBuffer(buffer); 5921 chain->incTrackCnt(); 5922 } 5923 } 5924 5925 // indicate all active tracks in the chain 5926 for (size_t i = 0 ; i < mActiveTracks.size() ; ++i) { 5927 sp<Track> track = mActiveTracks[i].promote(); 5928 if (track == 0) continue; 5929 if (session == track->sessionId()) { 5930 ALOGV("addEffectChain_l() activating track %p on session %d", track.get(), session); 5931 chain->incActiveTrackCnt(); 5932 } 5933 } 5934 } 5935 5936 chain->setInBuffer(buffer, ownsBuffer); 5937 chain->setOutBuffer(mMixBuffer); 5938 // Effect chain for session AUDIO_SESSION_OUTPUT_STAGE is inserted at end of effect 5939 // chains list in order to be processed last as it contains output stage effects 5940 // Effect chain for session AUDIO_SESSION_OUTPUT_MIX is inserted before 5941 // session AUDIO_SESSION_OUTPUT_STAGE to be processed 5942 // after track specific effects and before output stage 5943 // It is therefore mandatory that AUDIO_SESSION_OUTPUT_MIX == 0 and 5944 // that AUDIO_SESSION_OUTPUT_STAGE < AUDIO_SESSION_OUTPUT_MIX 5945 // Effect chain for other sessions are inserted at beginning of effect 5946 // chains list to be processed before output mix effects. Relative order between other 5947 // sessions is not important 5948 size_t size = mEffectChains.size(); 5949 size_t i = 0; 5950 for (i = 0; i < size; i++) { 5951 if (mEffectChains[i]->sessionId() < session) break; 5952 } 5953 mEffectChains.insertAt(chain, i); 5954 checkSuspendOnAddEffectChain_l(chain); 5955 5956 return NO_ERROR; 5957} 5958 5959size_t AudioFlinger::PlaybackThread::removeEffectChain_l(const sp<EffectChain>& chain) 5960{ 5961 int session = chain->sessionId(); 5962 5963 ALOGV("removeEffectChain_l() %p from thread %p for session %d", chain.get(), this, session); 5964 5965 for (size_t i = 0; i < mEffectChains.size(); i++) { 5966 if (chain == mEffectChains[i]) { 5967 mEffectChains.removeAt(i); 5968 // detach all active tracks from the chain 5969 for (size_t i = 0 ; i < mActiveTracks.size() ; ++i) { 5970 sp<Track> track = mActiveTracks[i].promote(); 5971 if (track == 0) continue; 5972 if (session == track->sessionId()) { 5973 ALOGV("removeEffectChain_l(): stopping track on chain %p for session Id: %d", 5974 chain.get(), session); 5975 chain->decActiveTrackCnt(); 5976 } 5977 } 5978 5979 // detach all tracks with same session ID from this chain 5980 for (size_t i = 0; i < mTracks.size(); ++i) { 5981 sp<Track> track = mTracks[i]; 5982 if (session == track->sessionId()) { 5983 track->setMainBuffer(mMixBuffer); 5984 chain->decTrackCnt(); 5985 } 5986 } 5987 break; 5988 } 5989 } 5990 return mEffectChains.size(); 5991} 5992 5993status_t AudioFlinger::PlaybackThread::attachAuxEffect( 5994 const sp<AudioFlinger::PlaybackThread::Track> track, int EffectId) 5995{ 5996 Mutex::Autolock _l(mLock); 5997 return attachAuxEffect_l(track, EffectId); 5998} 5999 6000status_t AudioFlinger::PlaybackThread::attachAuxEffect_l( 6001 const sp<AudioFlinger::PlaybackThread::Track> track, int EffectId) 6002{ 6003 status_t status = NO_ERROR; 6004 6005 if (EffectId == 0) { 6006 track->setAuxBuffer(0, NULL); 6007 } else { 6008 // Auxiliary effects are always in audio session AUDIO_SESSION_OUTPUT_MIX 6009 sp<EffectModule> effect = getEffect_l(AUDIO_SESSION_OUTPUT_MIX, EffectId); 6010 if (effect != 0) { 6011 if ((effect->desc().flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 6012 track->setAuxBuffer(EffectId, (int32_t *)effect->inBuffer()); 6013 } else { 6014 status = INVALID_OPERATION; 6015 } 6016 } else { 6017 status = BAD_VALUE; 6018 } 6019 } 6020 return status; 6021} 6022 6023void AudioFlinger::PlaybackThread::detachAuxEffect_l(int effectId) 6024{ 6025 for (size_t i = 0; i < mTracks.size(); ++i) { 6026 sp<Track> track = mTracks[i]; 6027 if (track->auxEffectId() == effectId) { 6028 attachAuxEffect_l(track, 0); 6029 } 6030 } 6031} 6032 6033status_t AudioFlinger::RecordThread::addEffectChain_l(const sp<EffectChain>& chain) 6034{ 6035 // only one chain per input thread 6036 if (mEffectChains.size() != 0) { 6037 return INVALID_OPERATION; 6038 } 6039 ALOGV("addEffectChain_l() %p on thread %p", chain.get(), this); 6040 6041 chain->setInBuffer(NULL); 6042 chain->setOutBuffer(NULL); 6043 6044 checkSuspendOnAddEffectChain_l(chain); 6045 6046 mEffectChains.add(chain); 6047 6048 return NO_ERROR; 6049} 6050 6051size_t AudioFlinger::RecordThread::removeEffectChain_l(const sp<EffectChain>& chain) 6052{ 6053 ALOGV("removeEffectChain_l() %p from thread %p", chain.get(), this); 6054 LOGW_IF(mEffectChains.size() != 1, 6055 "removeEffectChain_l() %p invalid chain size %d on thread %p", 6056 chain.get(), mEffectChains.size(), this); 6057 if (mEffectChains.size() == 1) { 6058 mEffectChains.removeAt(0); 6059 } 6060 return 0; 6061} 6062 6063// ---------------------------------------------------------------------------- 6064// EffectModule implementation 6065// ---------------------------------------------------------------------------- 6066 6067#undef LOG_TAG 6068#define LOG_TAG "AudioFlinger::EffectModule" 6069 6070AudioFlinger::EffectModule::EffectModule(const wp<ThreadBase>& wThread, 6071 const wp<AudioFlinger::EffectChain>& chain, 6072 effect_descriptor_t *desc, 6073 int id, 6074 int sessionId) 6075 : mThread(wThread), mChain(chain), mId(id), mSessionId(sessionId), mEffectInterface(NULL), 6076 mStatus(NO_INIT), mState(IDLE), mSuspended(false) 6077{ 6078 ALOGV("Constructor %p", this); 6079 int lStatus; 6080 sp<ThreadBase> thread = mThread.promote(); 6081 if (thread == 0) { 6082 return; 6083 } 6084 6085 memcpy(&mDescriptor, desc, sizeof(effect_descriptor_t)); 6086 6087 // create effect engine from effect factory 6088 mStatus = EffectCreate(&desc->uuid, sessionId, thread->id(), &mEffectInterface); 6089 6090 if (mStatus != NO_ERROR) { 6091 return; 6092 } 6093 lStatus = init(); 6094 if (lStatus < 0) { 6095 mStatus = lStatus; 6096 goto Error; 6097 } 6098 6099 if (mSessionId > AUDIO_SESSION_OUTPUT_MIX) { 6100 mPinned = true; 6101 } 6102 ALOGV("Constructor success name %s, Interface %p", mDescriptor.name, mEffectInterface); 6103 return; 6104Error: 6105 EffectRelease(mEffectInterface); 6106 mEffectInterface = NULL; 6107 ALOGV("Constructor Error %d", mStatus); 6108} 6109 6110AudioFlinger::EffectModule::~EffectModule() 6111{ 6112 ALOGV("Destructor %p", this); 6113 if (mEffectInterface != NULL) { 6114 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 6115 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) { 6116 sp<ThreadBase> thread = mThread.promote(); 6117 if (thread != 0) { 6118 audio_stream_t *stream = thread->stream(); 6119 if (stream != NULL) { 6120 stream->remove_audio_effect(stream, mEffectInterface); 6121 } 6122 } 6123 } 6124 // release effect engine 6125 EffectRelease(mEffectInterface); 6126 } 6127} 6128 6129status_t AudioFlinger::EffectModule::addHandle(sp<EffectHandle>& handle) 6130{ 6131 status_t status; 6132 6133 Mutex::Autolock _l(mLock); 6134 // First handle in mHandles has highest priority and controls the effect module 6135 int priority = handle->priority(); 6136 size_t size = mHandles.size(); 6137 sp<EffectHandle> h; 6138 size_t i; 6139 for (i = 0; i < size; i++) { 6140 h = mHandles[i].promote(); 6141 if (h == 0) continue; 6142 if (h->priority() <= priority) break; 6143 } 6144 // if inserted in first place, move effect control from previous owner to this handle 6145 if (i == 0) { 6146 bool enabled = false; 6147 if (h != 0) { 6148 enabled = h->enabled(); 6149 h->setControl(false/*hasControl*/, true /*signal*/, enabled /*enabled*/); 6150 } 6151 handle->setControl(true /*hasControl*/, false /*signal*/, enabled /*enabled*/); 6152 status = NO_ERROR; 6153 } else { 6154 status = ALREADY_EXISTS; 6155 } 6156 ALOGV("addHandle() %p added handle %p in position %d", this, handle.get(), i); 6157 mHandles.insertAt(handle, i); 6158 return status; 6159} 6160 6161size_t AudioFlinger::EffectModule::removeHandle(const wp<EffectHandle>& handle) 6162{ 6163 Mutex::Autolock _l(mLock); 6164 size_t size = mHandles.size(); 6165 size_t i; 6166 for (i = 0; i < size; i++) { 6167 if (mHandles[i] == handle) break; 6168 } 6169 if (i == size) { 6170 return size; 6171 } 6172 ALOGV("removeHandle() %p removed handle %p in position %d", this, handle.unsafe_get(), i); 6173 6174 bool enabled = false; 6175 EffectHandle *hdl = handle.unsafe_get(); 6176 if (hdl) { 6177 ALOGV("removeHandle() unsafe_get OK"); 6178 enabled = hdl->enabled(); 6179 } 6180 mHandles.removeAt(i); 6181 size = mHandles.size(); 6182 // if removed from first place, move effect control from this handle to next in line 6183 if (i == 0 && size != 0) { 6184 sp<EffectHandle> h = mHandles[0].promote(); 6185 if (h != 0) { 6186 h->setControl(true /*hasControl*/, true /*signal*/ , enabled /*enabled*/); 6187 } 6188 } 6189 6190 // Prevent calls to process() and other functions on effect interface from now on. 6191 // The effect engine will be released by the destructor when the last strong reference on 6192 // this object is released which can happen after next process is called. 6193 if (size == 0 && !mPinned) { 6194 mState = DESTROYED; 6195 } 6196 6197 return size; 6198} 6199 6200sp<AudioFlinger::EffectHandle> AudioFlinger::EffectModule::controlHandle() 6201{ 6202 Mutex::Autolock _l(mLock); 6203 sp<EffectHandle> handle; 6204 if (mHandles.size() != 0) { 6205 handle = mHandles[0].promote(); 6206 } 6207 return handle; 6208} 6209 6210void AudioFlinger::EffectModule::disconnect(const wp<EffectHandle>& handle, bool unpiniflast) 6211{ 6212 ALOGV("disconnect() %p handle %p ", this, handle.unsafe_get()); 6213 // keep a strong reference on this EffectModule to avoid calling the 6214 // destructor before we exit 6215 sp<EffectModule> keep(this); 6216 { 6217 sp<ThreadBase> thread = mThread.promote(); 6218 if (thread != 0) { 6219 thread->disconnectEffect(keep, handle, unpiniflast); 6220 } 6221 } 6222} 6223 6224void AudioFlinger::EffectModule::updateState() { 6225 Mutex::Autolock _l(mLock); 6226 6227 switch (mState) { 6228 case RESTART: 6229 reset_l(); 6230 // FALL THROUGH 6231 6232 case STARTING: 6233 // clear auxiliary effect input buffer for next accumulation 6234 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 6235 memset(mConfig.inputCfg.buffer.raw, 6236 0, 6237 mConfig.inputCfg.buffer.frameCount*sizeof(int32_t)); 6238 } 6239 start_l(); 6240 mState = ACTIVE; 6241 break; 6242 case STOPPING: 6243 stop_l(); 6244 mDisableWaitCnt = mMaxDisableWaitCnt; 6245 mState = STOPPED; 6246 break; 6247 case STOPPED: 6248 // mDisableWaitCnt is forced to 1 by process() when the engine indicates the end of the 6249 // turn off sequence. 6250 if (--mDisableWaitCnt == 0) { 6251 reset_l(); 6252 mState = IDLE; 6253 } 6254 break; 6255 default: //IDLE , ACTIVE, DESTROYED 6256 break; 6257 } 6258} 6259 6260void AudioFlinger::EffectModule::process() 6261{ 6262 Mutex::Autolock _l(mLock); 6263 6264 if (mState == DESTROYED || mEffectInterface == NULL || 6265 mConfig.inputCfg.buffer.raw == NULL || 6266 mConfig.outputCfg.buffer.raw == NULL) { 6267 return; 6268 } 6269 6270 if (isProcessEnabled()) { 6271 // do 32 bit to 16 bit conversion for auxiliary effect input buffer 6272 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 6273 AudioMixer::ditherAndClamp(mConfig.inputCfg.buffer.s32, 6274 mConfig.inputCfg.buffer.s32, 6275 mConfig.inputCfg.buffer.frameCount/2); 6276 } 6277 6278 // do the actual processing in the effect engine 6279 int ret = (*mEffectInterface)->process(mEffectInterface, 6280 &mConfig.inputCfg.buffer, 6281 &mConfig.outputCfg.buffer); 6282 6283 // force transition to IDLE state when engine is ready 6284 if (mState == STOPPED && ret == -ENODATA) { 6285 mDisableWaitCnt = 1; 6286 } 6287 6288 // clear auxiliary effect input buffer for next accumulation 6289 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 6290 memset(mConfig.inputCfg.buffer.raw, 0, 6291 mConfig.inputCfg.buffer.frameCount*sizeof(int32_t)); 6292 } 6293 } else if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_INSERT && 6294 mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) { 6295 // If an insert effect is idle and input buffer is different from output buffer, 6296 // accumulate input onto output 6297 sp<EffectChain> chain = mChain.promote(); 6298 if (chain != 0 && chain->activeTrackCnt() != 0) { 6299 size_t frameCnt = mConfig.inputCfg.buffer.frameCount * 2; //always stereo here 6300 int16_t *in = mConfig.inputCfg.buffer.s16; 6301 int16_t *out = mConfig.outputCfg.buffer.s16; 6302 for (size_t i = 0; i < frameCnt; i++) { 6303 out[i] = clamp16((int32_t)out[i] + (int32_t)in[i]); 6304 } 6305 } 6306 } 6307} 6308 6309void AudioFlinger::EffectModule::reset_l() 6310{ 6311 if (mEffectInterface == NULL) { 6312 return; 6313 } 6314 (*mEffectInterface)->command(mEffectInterface, EFFECT_CMD_RESET, 0, NULL, 0, NULL); 6315} 6316 6317status_t AudioFlinger::EffectModule::configure() 6318{ 6319 uint32_t channels; 6320 if (mEffectInterface == NULL) { 6321 return NO_INIT; 6322 } 6323 6324 sp<ThreadBase> thread = mThread.promote(); 6325 if (thread == 0) { 6326 return DEAD_OBJECT; 6327 } 6328 6329 // TODO: handle configuration of effects replacing track process 6330 if (thread->channelCount() == 1) { 6331 channels = AUDIO_CHANNEL_OUT_MONO; 6332 } else { 6333 channels = AUDIO_CHANNEL_OUT_STEREO; 6334 } 6335 6336 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 6337 mConfig.inputCfg.channels = AUDIO_CHANNEL_OUT_MONO; 6338 } else { 6339 mConfig.inputCfg.channels = channels; 6340 } 6341 mConfig.outputCfg.channels = channels; 6342 mConfig.inputCfg.format = AUDIO_FORMAT_PCM_16_BIT; 6343 mConfig.outputCfg.format = AUDIO_FORMAT_PCM_16_BIT; 6344 mConfig.inputCfg.samplingRate = thread->sampleRate(); 6345 mConfig.outputCfg.samplingRate = mConfig.inputCfg.samplingRate; 6346 mConfig.inputCfg.bufferProvider.cookie = NULL; 6347 mConfig.inputCfg.bufferProvider.getBuffer = NULL; 6348 mConfig.inputCfg.bufferProvider.releaseBuffer = NULL; 6349 mConfig.outputCfg.bufferProvider.cookie = NULL; 6350 mConfig.outputCfg.bufferProvider.getBuffer = NULL; 6351 mConfig.outputCfg.bufferProvider.releaseBuffer = NULL; 6352 mConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ; 6353 // Insert effect: 6354 // - in session AUDIO_SESSION_OUTPUT_MIX or AUDIO_SESSION_OUTPUT_STAGE, 6355 // always overwrites output buffer: input buffer == output buffer 6356 // - in other sessions: 6357 // last effect in the chain accumulates in output buffer: input buffer != output buffer 6358 // other effect: overwrites output buffer: input buffer == output buffer 6359 // Auxiliary effect: 6360 // accumulates in output buffer: input buffer != output buffer 6361 // Therefore: accumulate <=> input buffer != output buffer 6362 if (mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) { 6363 mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_ACCUMULATE; 6364 } else { 6365 mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_WRITE; 6366 } 6367 mConfig.inputCfg.mask = EFFECT_CONFIG_ALL; 6368 mConfig.outputCfg.mask = EFFECT_CONFIG_ALL; 6369 mConfig.inputCfg.buffer.frameCount = thread->frameCount(); 6370 mConfig.outputCfg.buffer.frameCount = mConfig.inputCfg.buffer.frameCount; 6371 6372 ALOGV("configure() %p thread %p buffer %p framecount %d", 6373 this, thread.get(), mConfig.inputCfg.buffer.raw, mConfig.inputCfg.buffer.frameCount); 6374 6375 status_t cmdStatus; 6376 uint32_t size = sizeof(int); 6377 status_t status = (*mEffectInterface)->command(mEffectInterface, 6378 EFFECT_CMD_CONFIGURE, 6379 sizeof(effect_config_t), 6380 &mConfig, 6381 &size, 6382 &cmdStatus); 6383 if (status == 0) { 6384 status = cmdStatus; 6385 } 6386 6387 mMaxDisableWaitCnt = (MAX_DISABLE_TIME_MS * mConfig.outputCfg.samplingRate) / 6388 (1000 * mConfig.outputCfg.buffer.frameCount); 6389 6390 return status; 6391} 6392 6393status_t AudioFlinger::EffectModule::init() 6394{ 6395 Mutex::Autolock _l(mLock); 6396 if (mEffectInterface == NULL) { 6397 return NO_INIT; 6398 } 6399 status_t cmdStatus; 6400 uint32_t size = sizeof(status_t); 6401 status_t status = (*mEffectInterface)->command(mEffectInterface, 6402 EFFECT_CMD_INIT, 6403 0, 6404 NULL, 6405 &size, 6406 &cmdStatus); 6407 if (status == 0) { 6408 status = cmdStatus; 6409 } 6410 return status; 6411} 6412 6413status_t AudioFlinger::EffectModule::start() 6414{ 6415 Mutex::Autolock _l(mLock); 6416 return start_l(); 6417} 6418 6419status_t AudioFlinger::EffectModule::start_l() 6420{ 6421 if (mEffectInterface == NULL) { 6422 return NO_INIT; 6423 } 6424 status_t cmdStatus; 6425 uint32_t size = sizeof(status_t); 6426 status_t status = (*mEffectInterface)->command(mEffectInterface, 6427 EFFECT_CMD_ENABLE, 6428 0, 6429 NULL, 6430 &size, 6431 &cmdStatus); 6432 if (status == 0) { 6433 status = cmdStatus; 6434 } 6435 if (status == 0 && 6436 ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 6437 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC)) { 6438 sp<ThreadBase> thread = mThread.promote(); 6439 if (thread != 0) { 6440 audio_stream_t *stream = thread->stream(); 6441 if (stream != NULL) { 6442 stream->add_audio_effect(stream, mEffectInterface); 6443 } 6444 } 6445 } 6446 return status; 6447} 6448 6449status_t AudioFlinger::EffectModule::stop() 6450{ 6451 Mutex::Autolock _l(mLock); 6452 return stop_l(); 6453} 6454 6455status_t AudioFlinger::EffectModule::stop_l() 6456{ 6457 if (mEffectInterface == NULL) { 6458 return NO_INIT; 6459 } 6460 status_t cmdStatus; 6461 uint32_t size = sizeof(status_t); 6462 status_t status = (*mEffectInterface)->command(mEffectInterface, 6463 EFFECT_CMD_DISABLE, 6464 0, 6465 NULL, 6466 &size, 6467 &cmdStatus); 6468 if (status == 0) { 6469 status = cmdStatus; 6470 } 6471 if (status == 0 && 6472 ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 6473 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC)) { 6474 sp<ThreadBase> thread = mThread.promote(); 6475 if (thread != 0) { 6476 audio_stream_t *stream = thread->stream(); 6477 if (stream != NULL) { 6478 stream->remove_audio_effect(stream, mEffectInterface); 6479 } 6480 } 6481 } 6482 return status; 6483} 6484 6485status_t AudioFlinger::EffectModule::command(uint32_t cmdCode, 6486 uint32_t cmdSize, 6487 void *pCmdData, 6488 uint32_t *replySize, 6489 void *pReplyData) 6490{ 6491 Mutex::Autolock _l(mLock); 6492// ALOGV("command(), cmdCode: %d, mEffectInterface: %p", cmdCode, mEffectInterface); 6493 6494 if (mState == DESTROYED || mEffectInterface == NULL) { 6495 return NO_INIT; 6496 } 6497 status_t status = (*mEffectInterface)->command(mEffectInterface, 6498 cmdCode, 6499 cmdSize, 6500 pCmdData, 6501 replySize, 6502 pReplyData); 6503 if (cmdCode != EFFECT_CMD_GET_PARAM && status == NO_ERROR) { 6504 uint32_t size = (replySize == NULL) ? 0 : *replySize; 6505 for (size_t i = 1; i < mHandles.size(); i++) { 6506 sp<EffectHandle> h = mHandles[i].promote(); 6507 if (h != 0) { 6508 h->commandExecuted(cmdCode, cmdSize, pCmdData, size, pReplyData); 6509 } 6510 } 6511 } 6512 return status; 6513} 6514 6515status_t AudioFlinger::EffectModule::setEnabled(bool enabled) 6516{ 6517 6518 Mutex::Autolock _l(mLock); 6519 ALOGV("setEnabled %p enabled %d", this, enabled); 6520 6521 if (enabled != isEnabled()) { 6522 status_t status = AudioSystem::setEffectEnabled(mId, enabled); 6523 if (enabled && status != NO_ERROR) { 6524 return status; 6525 } 6526 6527 switch (mState) { 6528 // going from disabled to enabled 6529 case IDLE: 6530 mState = STARTING; 6531 break; 6532 case STOPPED: 6533 mState = RESTART; 6534 break; 6535 case STOPPING: 6536 mState = ACTIVE; 6537 break; 6538 6539 // going from enabled to disabled 6540 case RESTART: 6541 mState = STOPPED; 6542 break; 6543 case STARTING: 6544 mState = IDLE; 6545 break; 6546 case ACTIVE: 6547 mState = STOPPING; 6548 break; 6549 case DESTROYED: 6550 return NO_ERROR; // simply ignore as we are being destroyed 6551 } 6552 for (size_t i = 1; i < mHandles.size(); i++) { 6553 sp<EffectHandle> h = mHandles[i].promote(); 6554 if (h != 0) { 6555 h->setEnabled(enabled); 6556 } 6557 } 6558 } 6559 return NO_ERROR; 6560} 6561 6562bool AudioFlinger::EffectModule::isEnabled() 6563{ 6564 switch (mState) { 6565 case RESTART: 6566 case STARTING: 6567 case ACTIVE: 6568 return true; 6569 case IDLE: 6570 case STOPPING: 6571 case STOPPED: 6572 case DESTROYED: 6573 default: 6574 return false; 6575 } 6576} 6577 6578bool AudioFlinger::EffectModule::isProcessEnabled() 6579{ 6580 switch (mState) { 6581 case RESTART: 6582 case ACTIVE: 6583 case STOPPING: 6584 case STOPPED: 6585 return true; 6586 case IDLE: 6587 case STARTING: 6588 case DESTROYED: 6589 default: 6590 return false; 6591 } 6592} 6593 6594status_t AudioFlinger::EffectModule::setVolume(uint32_t *left, uint32_t *right, bool controller) 6595{ 6596 Mutex::Autolock _l(mLock); 6597 status_t status = NO_ERROR; 6598 6599 // Send volume indication if EFFECT_FLAG_VOLUME_IND is set and read back altered volume 6600 // if controller flag is set (Note that controller == TRUE => EFFECT_FLAG_VOLUME_CTRL set) 6601 if (isProcessEnabled() && 6602 ((mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL || 6603 (mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_IND)) { 6604 status_t cmdStatus; 6605 uint32_t volume[2]; 6606 uint32_t *pVolume = NULL; 6607 uint32_t size = sizeof(volume); 6608 volume[0] = *left; 6609 volume[1] = *right; 6610 if (controller) { 6611 pVolume = volume; 6612 } 6613 status = (*mEffectInterface)->command(mEffectInterface, 6614 EFFECT_CMD_SET_VOLUME, 6615 size, 6616 volume, 6617 &size, 6618 pVolume); 6619 if (controller && status == NO_ERROR && size == sizeof(volume)) { 6620 *left = volume[0]; 6621 *right = volume[1]; 6622 } 6623 } 6624 return status; 6625} 6626 6627status_t AudioFlinger::EffectModule::setDevice(uint32_t device) 6628{ 6629 Mutex::Autolock _l(mLock); 6630 status_t status = NO_ERROR; 6631 if (device && (mDescriptor.flags & EFFECT_FLAG_DEVICE_MASK) == EFFECT_FLAG_DEVICE_IND) { 6632 // audio pre processing modules on RecordThread can receive both output and 6633 // input device indication in the same call 6634 uint32_t dev = device & AUDIO_DEVICE_OUT_ALL; 6635 if (dev) { 6636 status_t cmdStatus; 6637 uint32_t size = sizeof(status_t); 6638 6639 status = (*mEffectInterface)->command(mEffectInterface, 6640 EFFECT_CMD_SET_DEVICE, 6641 sizeof(uint32_t), 6642 &dev, 6643 &size, 6644 &cmdStatus); 6645 if (status == NO_ERROR) { 6646 status = cmdStatus; 6647 } 6648 } 6649 dev = device & AUDIO_DEVICE_IN_ALL; 6650 if (dev) { 6651 status_t cmdStatus; 6652 uint32_t size = sizeof(status_t); 6653 6654 status_t status2 = (*mEffectInterface)->command(mEffectInterface, 6655 EFFECT_CMD_SET_INPUT_DEVICE, 6656 sizeof(uint32_t), 6657 &dev, 6658 &size, 6659 &cmdStatus); 6660 if (status2 == NO_ERROR) { 6661 status2 = cmdStatus; 6662 } 6663 if (status == NO_ERROR) { 6664 status = status2; 6665 } 6666 } 6667 } 6668 return status; 6669} 6670 6671status_t AudioFlinger::EffectModule::setMode(uint32_t mode) 6672{ 6673 Mutex::Autolock _l(mLock); 6674 status_t status = NO_ERROR; 6675 if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_MODE_MASK) == EFFECT_FLAG_AUDIO_MODE_IND) { 6676 status_t cmdStatus; 6677 uint32_t size = sizeof(status_t); 6678 status = (*mEffectInterface)->command(mEffectInterface, 6679 EFFECT_CMD_SET_AUDIO_MODE, 6680 sizeof(int), 6681 &mode, 6682 &size, 6683 &cmdStatus); 6684 if (status == NO_ERROR) { 6685 status = cmdStatus; 6686 } 6687 } 6688 return status; 6689} 6690 6691void AudioFlinger::EffectModule::setSuspended(bool suspended) 6692{ 6693 Mutex::Autolock _l(mLock); 6694 mSuspended = suspended; 6695} 6696bool AudioFlinger::EffectModule::suspended() 6697{ 6698 Mutex::Autolock _l(mLock); 6699 return mSuspended; 6700} 6701 6702status_t AudioFlinger::EffectModule::dump(int fd, const Vector<String16>& args) 6703{ 6704 const size_t SIZE = 256; 6705 char buffer[SIZE]; 6706 String8 result; 6707 6708 snprintf(buffer, SIZE, "\tEffect ID %d:\n", mId); 6709 result.append(buffer); 6710 6711 bool locked = tryLock(mLock); 6712 // failed to lock - AudioFlinger is probably deadlocked 6713 if (!locked) { 6714 result.append("\t\tCould not lock Fx mutex:\n"); 6715 } 6716 6717 result.append("\t\tSession Status State Engine:\n"); 6718 snprintf(buffer, SIZE, "\t\t%05d %03d %03d 0x%08x\n", 6719 mSessionId, mStatus, mState, (uint32_t)mEffectInterface); 6720 result.append(buffer); 6721 6722 result.append("\t\tDescriptor:\n"); 6723 snprintf(buffer, SIZE, "\t\t- UUID: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n", 6724 mDescriptor.uuid.timeLow, mDescriptor.uuid.timeMid, mDescriptor.uuid.timeHiAndVersion, 6725 mDescriptor.uuid.clockSeq, mDescriptor.uuid.node[0], mDescriptor.uuid.node[1],mDescriptor.uuid.node[2], 6726 mDescriptor.uuid.node[3],mDescriptor.uuid.node[4],mDescriptor.uuid.node[5]); 6727 result.append(buffer); 6728 snprintf(buffer, SIZE, "\t\t- TYPE: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n", 6729 mDescriptor.type.timeLow, mDescriptor.type.timeMid, mDescriptor.type.timeHiAndVersion, 6730 mDescriptor.type.clockSeq, mDescriptor.type.node[0], mDescriptor.type.node[1],mDescriptor.type.node[2], 6731 mDescriptor.type.node[3],mDescriptor.type.node[4],mDescriptor.type.node[5]); 6732 result.append(buffer); 6733 snprintf(buffer, SIZE, "\t\t- apiVersion: %08X\n\t\t- flags: %08X\n", 6734 mDescriptor.apiVersion, 6735 mDescriptor.flags); 6736 result.append(buffer); 6737 snprintf(buffer, SIZE, "\t\t- name: %s\n", 6738 mDescriptor.name); 6739 result.append(buffer); 6740 snprintf(buffer, SIZE, "\t\t- implementor: %s\n", 6741 mDescriptor.implementor); 6742 result.append(buffer); 6743 6744 result.append("\t\t- Input configuration:\n"); 6745 result.append("\t\t\tBuffer Frames Smp rate Channels Format\n"); 6746 snprintf(buffer, SIZE, "\t\t\t0x%08x %05d %05d %08x %d\n", 6747 (uint32_t)mConfig.inputCfg.buffer.raw, 6748 mConfig.inputCfg.buffer.frameCount, 6749 mConfig.inputCfg.samplingRate, 6750 mConfig.inputCfg.channels, 6751 mConfig.inputCfg.format); 6752 result.append(buffer); 6753 6754 result.append("\t\t- Output configuration:\n"); 6755 result.append("\t\t\tBuffer Frames Smp rate Channels Format\n"); 6756 snprintf(buffer, SIZE, "\t\t\t0x%08x %05d %05d %08x %d\n", 6757 (uint32_t)mConfig.outputCfg.buffer.raw, 6758 mConfig.outputCfg.buffer.frameCount, 6759 mConfig.outputCfg.samplingRate, 6760 mConfig.outputCfg.channels, 6761 mConfig.outputCfg.format); 6762 result.append(buffer); 6763 6764 snprintf(buffer, SIZE, "\t\t%d Clients:\n", mHandles.size()); 6765 result.append(buffer); 6766 result.append("\t\t\tPid Priority Ctrl Locked client server\n"); 6767 for (size_t i = 0; i < mHandles.size(); ++i) { 6768 sp<EffectHandle> handle = mHandles[i].promote(); 6769 if (handle != 0) { 6770 handle->dump(buffer, SIZE); 6771 result.append(buffer); 6772 } 6773 } 6774 6775 result.append("\n"); 6776 6777 write(fd, result.string(), result.length()); 6778 6779 if (locked) { 6780 mLock.unlock(); 6781 } 6782 6783 return NO_ERROR; 6784} 6785 6786// ---------------------------------------------------------------------------- 6787// EffectHandle implementation 6788// ---------------------------------------------------------------------------- 6789 6790#undef LOG_TAG 6791#define LOG_TAG "AudioFlinger::EffectHandle" 6792 6793AudioFlinger::EffectHandle::EffectHandle(const sp<EffectModule>& effect, 6794 const sp<AudioFlinger::Client>& client, 6795 const sp<IEffectClient>& effectClient, 6796 int32_t priority) 6797 : BnEffect(), 6798 mEffect(effect), mEffectClient(effectClient), mClient(client), mCblk(NULL), 6799 mPriority(priority), mHasControl(false), mEnabled(false) 6800{ 6801 ALOGV("constructor %p", this); 6802 6803 if (client == 0) { 6804 return; 6805 } 6806 int bufOffset = ((sizeof(effect_param_cblk_t) - 1) / sizeof(int) + 1) * sizeof(int); 6807 mCblkMemory = client->heap()->allocate(EFFECT_PARAM_BUFFER_SIZE + bufOffset); 6808 if (mCblkMemory != 0) { 6809 mCblk = static_cast<effect_param_cblk_t *>(mCblkMemory->pointer()); 6810 6811 if (mCblk) { 6812 new(mCblk) effect_param_cblk_t(); 6813 mBuffer = (uint8_t *)mCblk + bufOffset; 6814 } 6815 } else { 6816 LOGE("not enough memory for Effect size=%u", EFFECT_PARAM_BUFFER_SIZE + sizeof(effect_param_cblk_t)); 6817 return; 6818 } 6819} 6820 6821AudioFlinger::EffectHandle::~EffectHandle() 6822{ 6823 ALOGV("Destructor %p", this); 6824 disconnect(false); 6825 ALOGV("Destructor DONE %p", this); 6826} 6827 6828status_t AudioFlinger::EffectHandle::enable() 6829{ 6830 ALOGV("enable %p", this); 6831 if (!mHasControl) return INVALID_OPERATION; 6832 if (mEffect == 0) return DEAD_OBJECT; 6833 6834 if (mEnabled) { 6835 return NO_ERROR; 6836 } 6837 6838 mEnabled = true; 6839 6840 sp<ThreadBase> thread = mEffect->thread().promote(); 6841 if (thread != 0) { 6842 thread->checkSuspendOnEffectEnabled(mEffect, true, mEffect->sessionId()); 6843 } 6844 6845 // checkSuspendOnEffectEnabled() can suspend this same effect when enabled 6846 if (mEffect->suspended()) { 6847 return NO_ERROR; 6848 } 6849 6850 status_t status = mEffect->setEnabled(true); 6851 if (status != NO_ERROR) { 6852 if (thread != 0) { 6853 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 6854 } 6855 mEnabled = false; 6856 } 6857 return status; 6858} 6859 6860status_t AudioFlinger::EffectHandle::disable() 6861{ 6862 ALOGV("disable %p", this); 6863 if (!mHasControl) return INVALID_OPERATION; 6864 if (mEffect == 0) return DEAD_OBJECT; 6865 6866 if (!mEnabled) { 6867 return NO_ERROR; 6868 } 6869 mEnabled = false; 6870 6871 if (mEffect->suspended()) { 6872 return NO_ERROR; 6873 } 6874 6875 status_t status = mEffect->setEnabled(false); 6876 6877 sp<ThreadBase> thread = mEffect->thread().promote(); 6878 if (thread != 0) { 6879 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 6880 } 6881 6882 return status; 6883} 6884 6885void AudioFlinger::EffectHandle::disconnect() 6886{ 6887 disconnect(true); 6888} 6889 6890void AudioFlinger::EffectHandle::disconnect(bool unpiniflast) 6891{ 6892 ALOGV("disconnect(%s)", unpiniflast ? "true" : "false"); 6893 if (mEffect == 0) { 6894 return; 6895 } 6896 mEffect->disconnect(this, unpiniflast); 6897 6898 if (mHasControl && mEnabled) { 6899 sp<ThreadBase> thread = mEffect->thread().promote(); 6900 if (thread != 0) { 6901 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 6902 } 6903 } 6904 6905 // release sp on module => module destructor can be called now 6906 mEffect.clear(); 6907 if (mClient != 0) { 6908 if (mCblk) { 6909 mCblk->~effect_param_cblk_t(); // destroy our shared-structure. 6910 } 6911 mCblkMemory.clear(); // and free the shared memory 6912 Mutex::Autolock _l(mClient->audioFlinger()->mLock); 6913 mClient.clear(); 6914 } 6915} 6916 6917status_t AudioFlinger::EffectHandle::command(uint32_t cmdCode, 6918 uint32_t cmdSize, 6919 void *pCmdData, 6920 uint32_t *replySize, 6921 void *pReplyData) 6922{ 6923// ALOGV("command(), cmdCode: %d, mHasControl: %d, mEffect: %p", 6924// cmdCode, mHasControl, (mEffect == 0) ? 0 : mEffect.get()); 6925 6926 // only get parameter command is permitted for applications not controlling the effect 6927 if (!mHasControl && cmdCode != EFFECT_CMD_GET_PARAM) { 6928 return INVALID_OPERATION; 6929 } 6930 if (mEffect == 0) return DEAD_OBJECT; 6931 if (mClient == 0) return INVALID_OPERATION; 6932 6933 // handle commands that are not forwarded transparently to effect engine 6934 if (cmdCode == EFFECT_CMD_SET_PARAM_COMMIT) { 6935 // No need to trylock() here as this function is executed in the binder thread serving a particular client process: 6936 // no risk to block the whole media server process or mixer threads is we are stuck here 6937 Mutex::Autolock _l(mCblk->lock); 6938 if (mCblk->clientIndex > EFFECT_PARAM_BUFFER_SIZE || 6939 mCblk->serverIndex > EFFECT_PARAM_BUFFER_SIZE) { 6940 mCblk->serverIndex = 0; 6941 mCblk->clientIndex = 0; 6942 return BAD_VALUE; 6943 } 6944 status_t status = NO_ERROR; 6945 while (mCblk->serverIndex < mCblk->clientIndex) { 6946 int reply; 6947 uint32_t rsize = sizeof(int); 6948 int *p = (int *)(mBuffer + mCblk->serverIndex); 6949 int size = *p++; 6950 if (((uint8_t *)p + size) > mBuffer + mCblk->clientIndex) { 6951 LOGW("command(): invalid parameter block size"); 6952 break; 6953 } 6954 effect_param_t *param = (effect_param_t *)p; 6955 if (param->psize == 0 || param->vsize == 0) { 6956 LOGW("command(): null parameter or value size"); 6957 mCblk->serverIndex += size; 6958 continue; 6959 } 6960 uint32_t psize = sizeof(effect_param_t) + 6961 ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) + 6962 param->vsize; 6963 status_t ret = mEffect->command(EFFECT_CMD_SET_PARAM, 6964 psize, 6965 p, 6966 &rsize, 6967 &reply); 6968 // stop at first error encountered 6969 if (ret != NO_ERROR) { 6970 status = ret; 6971 *(int *)pReplyData = reply; 6972 break; 6973 } else if (reply != NO_ERROR) { 6974 *(int *)pReplyData = reply; 6975 break; 6976 } 6977 mCblk->serverIndex += size; 6978 } 6979 mCblk->serverIndex = 0; 6980 mCblk->clientIndex = 0; 6981 return status; 6982 } else if (cmdCode == EFFECT_CMD_ENABLE) { 6983 *(int *)pReplyData = NO_ERROR; 6984 return enable(); 6985 } else if (cmdCode == EFFECT_CMD_DISABLE) { 6986 *(int *)pReplyData = NO_ERROR; 6987 return disable(); 6988 } 6989 6990 return mEffect->command(cmdCode, cmdSize, pCmdData, replySize, pReplyData); 6991} 6992 6993sp<IMemory> AudioFlinger::EffectHandle::getCblk() const { 6994 return mCblkMemory; 6995} 6996 6997void AudioFlinger::EffectHandle::setControl(bool hasControl, bool signal, bool enabled) 6998{ 6999 ALOGV("setControl %p control %d", this, hasControl); 7000 7001 mHasControl = hasControl; 7002 mEnabled = enabled; 7003 7004 if (signal && mEffectClient != 0) { 7005 mEffectClient->controlStatusChanged(hasControl); 7006 } 7007} 7008 7009void AudioFlinger::EffectHandle::commandExecuted(uint32_t cmdCode, 7010 uint32_t cmdSize, 7011 void *pCmdData, 7012 uint32_t replySize, 7013 void *pReplyData) 7014{ 7015 if (mEffectClient != 0) { 7016 mEffectClient->commandExecuted(cmdCode, cmdSize, pCmdData, replySize, pReplyData); 7017 } 7018} 7019 7020 7021 7022void AudioFlinger::EffectHandle::setEnabled(bool enabled) 7023{ 7024 if (mEffectClient != 0) { 7025 mEffectClient->enableStatusChanged(enabled); 7026 } 7027} 7028 7029status_t AudioFlinger::EffectHandle::onTransact( 7030 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 7031{ 7032 return BnEffect::onTransact(code, data, reply, flags); 7033} 7034 7035 7036void AudioFlinger::EffectHandle::dump(char* buffer, size_t size) 7037{ 7038 bool locked = mCblk ? tryLock(mCblk->lock) : false; 7039 7040 snprintf(buffer, size, "\t\t\t%05d %05d %01u %01u %05u %05u\n", 7041 (mClient == NULL) ? getpid() : mClient->pid(), 7042 mPriority, 7043 mHasControl, 7044 !locked, 7045 mCblk ? mCblk->clientIndex : 0, 7046 mCblk ? mCblk->serverIndex : 0 7047 ); 7048 7049 if (locked) { 7050 mCblk->lock.unlock(); 7051 } 7052} 7053 7054#undef LOG_TAG 7055#define LOG_TAG "AudioFlinger::EffectChain" 7056 7057AudioFlinger::EffectChain::EffectChain(const wp<ThreadBase>& wThread, 7058 int sessionId) 7059 : mThread(wThread), mSessionId(sessionId), mActiveTrackCnt(0), mTrackCnt(0), mTailBufferCount(0), 7060 mOwnInBuffer(false), mVolumeCtrlIdx(-1), mLeftVolume(UINT_MAX), mRightVolume(UINT_MAX), 7061 mNewLeftVolume(UINT_MAX), mNewRightVolume(UINT_MAX) 7062{ 7063 mStrategy = AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC); 7064 sp<ThreadBase> thread = mThread.promote(); 7065 if (thread == 0) { 7066 return; 7067 } 7068 mMaxTailBuffers = ((kProcessTailDurationMs * thread->sampleRate()) / 1000) / 7069 thread->frameCount(); 7070} 7071 7072AudioFlinger::EffectChain::~EffectChain() 7073{ 7074 if (mOwnInBuffer) { 7075 delete mInBuffer; 7076 } 7077 7078} 7079 7080// getEffectFromDesc_l() must be called with ThreadBase::mLock held 7081sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromDesc_l(effect_descriptor_t *descriptor) 7082{ 7083 sp<EffectModule> effect; 7084 size_t size = mEffects.size(); 7085 7086 for (size_t i = 0; i < size; i++) { 7087 if (memcmp(&mEffects[i]->desc().uuid, &descriptor->uuid, sizeof(effect_uuid_t)) == 0) { 7088 effect = mEffects[i]; 7089 break; 7090 } 7091 } 7092 return effect; 7093} 7094 7095// getEffectFromId_l() must be called with ThreadBase::mLock held 7096sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromId_l(int id) 7097{ 7098 sp<EffectModule> effect; 7099 size_t size = mEffects.size(); 7100 7101 for (size_t i = 0; i < size; i++) { 7102 // by convention, return first effect if id provided is 0 (0 is never a valid id) 7103 if (id == 0 || mEffects[i]->id() == id) { 7104 effect = mEffects[i]; 7105 break; 7106 } 7107 } 7108 return effect; 7109} 7110 7111// getEffectFromType_l() must be called with ThreadBase::mLock held 7112sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromType_l( 7113 const effect_uuid_t *type) 7114{ 7115 sp<EffectModule> effect; 7116 size_t size = mEffects.size(); 7117 7118 for (size_t i = 0; i < size; i++) { 7119 if (memcmp(&mEffects[i]->desc().type, type, sizeof(effect_uuid_t)) == 0) { 7120 effect = mEffects[i]; 7121 break; 7122 } 7123 } 7124 return effect; 7125} 7126 7127// Must be called with EffectChain::mLock locked 7128void AudioFlinger::EffectChain::process_l() 7129{ 7130 sp<ThreadBase> thread = mThread.promote(); 7131 if (thread == 0) { 7132 LOGW("process_l(): cannot promote mixer thread"); 7133 return; 7134 } 7135 bool isGlobalSession = (mSessionId == AUDIO_SESSION_OUTPUT_MIX) || 7136 (mSessionId == AUDIO_SESSION_OUTPUT_STAGE); 7137 // always process effects unless no more tracks are on the session and the effect tail 7138 // has been rendered 7139 bool doProcess = true; 7140 if (!isGlobalSession) { 7141 bool tracksOnSession = (trackCnt() != 0); 7142 7143 if (!tracksOnSession && mTailBufferCount == 0) { 7144 doProcess = false; 7145 } 7146 7147 if (activeTrackCnt() == 0) { 7148 // if no track is active and the effect tail has not been rendered, 7149 // the input buffer must be cleared here as the mixer process will not do it 7150 if (tracksOnSession || mTailBufferCount > 0) { 7151 size_t numSamples = thread->frameCount() * thread->channelCount(); 7152 memset(mInBuffer, 0, numSamples * sizeof(int16_t)); 7153 if (mTailBufferCount > 0) { 7154 mTailBufferCount--; 7155 } 7156 } 7157 } 7158 } 7159 7160 size_t size = mEffects.size(); 7161 if (doProcess) { 7162 for (size_t i = 0; i < size; i++) { 7163 mEffects[i]->process(); 7164 } 7165 } 7166 for (size_t i = 0; i < size; i++) { 7167 mEffects[i]->updateState(); 7168 } 7169} 7170 7171// addEffect_l() must be called with PlaybackThread::mLock held 7172status_t AudioFlinger::EffectChain::addEffect_l(const sp<EffectModule>& effect) 7173{ 7174 effect_descriptor_t desc = effect->desc(); 7175 uint32_t insertPref = desc.flags & EFFECT_FLAG_INSERT_MASK; 7176 7177 Mutex::Autolock _l(mLock); 7178 effect->setChain(this); 7179 sp<ThreadBase> thread = mThread.promote(); 7180 if (thread == 0) { 7181 return NO_INIT; 7182 } 7183 effect->setThread(thread); 7184 7185 if ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 7186 // Auxiliary effects are inserted at the beginning of mEffects vector as 7187 // they are processed first and accumulated in chain input buffer 7188 mEffects.insertAt(effect, 0); 7189 7190 // the input buffer for auxiliary effect contains mono samples in 7191 // 32 bit format. This is to avoid saturation in AudoMixer 7192 // accumulation stage. Saturation is done in EffectModule::process() before 7193 // calling the process in effect engine 7194 size_t numSamples = thread->frameCount(); 7195 int32_t *buffer = new int32_t[numSamples]; 7196 memset(buffer, 0, numSamples * sizeof(int32_t)); 7197 effect->setInBuffer((int16_t *)buffer); 7198 // auxiliary effects output samples to chain input buffer for further processing 7199 // by insert effects 7200 effect->setOutBuffer(mInBuffer); 7201 } else { 7202 // Insert effects are inserted at the end of mEffects vector as they are processed 7203 // after track and auxiliary effects. 7204 // Insert effect order as a function of indicated preference: 7205 // if EFFECT_FLAG_INSERT_EXCLUSIVE, insert in first position or reject if 7206 // another effect is present 7207 // else if EFFECT_FLAG_INSERT_FIRST, insert in first position or after the 7208 // last effect claiming first position 7209 // else if EFFECT_FLAG_INSERT_LAST, insert in last position or before the 7210 // first effect claiming last position 7211 // else if EFFECT_FLAG_INSERT_ANY insert after first or before last 7212 // Reject insertion if an effect with EFFECT_FLAG_INSERT_EXCLUSIVE is 7213 // already present 7214 7215 int size = (int)mEffects.size(); 7216 int idx_insert = size; 7217 int idx_insert_first = -1; 7218 int idx_insert_last = -1; 7219 7220 for (int i = 0; i < size; i++) { 7221 effect_descriptor_t d = mEffects[i]->desc(); 7222 uint32_t iMode = d.flags & EFFECT_FLAG_TYPE_MASK; 7223 uint32_t iPref = d.flags & EFFECT_FLAG_INSERT_MASK; 7224 if (iMode == EFFECT_FLAG_TYPE_INSERT) { 7225 // check invalid effect chaining combinations 7226 if (insertPref == EFFECT_FLAG_INSERT_EXCLUSIVE || 7227 iPref == EFFECT_FLAG_INSERT_EXCLUSIVE) { 7228 LOGW("addEffect_l() could not insert effect %s: exclusive conflict with %s", desc.name, d.name); 7229 return INVALID_OPERATION; 7230 } 7231 // remember position of first insert effect and by default 7232 // select this as insert position for new effect 7233 if (idx_insert == size) { 7234 idx_insert = i; 7235 } 7236 // remember position of last insert effect claiming 7237 // first position 7238 if (iPref == EFFECT_FLAG_INSERT_FIRST) { 7239 idx_insert_first = i; 7240 } 7241 // remember position of first insert effect claiming 7242 // last position 7243 if (iPref == EFFECT_FLAG_INSERT_LAST && 7244 idx_insert_last == -1) { 7245 idx_insert_last = i; 7246 } 7247 } 7248 } 7249 7250 // modify idx_insert from first position if needed 7251 if (insertPref == EFFECT_FLAG_INSERT_LAST) { 7252 if (idx_insert_last != -1) { 7253 idx_insert = idx_insert_last; 7254 } else { 7255 idx_insert = size; 7256 } 7257 } else { 7258 if (idx_insert_first != -1) { 7259 idx_insert = idx_insert_first + 1; 7260 } 7261 } 7262 7263 // always read samples from chain input buffer 7264 effect->setInBuffer(mInBuffer); 7265 7266 // if last effect in the chain, output samples to chain 7267 // output buffer, otherwise to chain input buffer 7268 if (idx_insert == size) { 7269 if (idx_insert != 0) { 7270 mEffects[idx_insert-1]->setOutBuffer(mInBuffer); 7271 mEffects[idx_insert-1]->configure(); 7272 } 7273 effect->setOutBuffer(mOutBuffer); 7274 } else { 7275 effect->setOutBuffer(mInBuffer); 7276 } 7277 mEffects.insertAt(effect, idx_insert); 7278 7279 ALOGV("addEffect_l() effect %p, added in chain %p at rank %d", effect.get(), this, idx_insert); 7280 } 7281 effect->configure(); 7282 return NO_ERROR; 7283} 7284 7285// removeEffect_l() must be called with PlaybackThread::mLock held 7286size_t AudioFlinger::EffectChain::removeEffect_l(const sp<EffectModule>& effect) 7287{ 7288 Mutex::Autolock _l(mLock); 7289 int size = (int)mEffects.size(); 7290 int i; 7291 uint32_t type = effect->desc().flags & EFFECT_FLAG_TYPE_MASK; 7292 7293 for (i = 0; i < size; i++) { 7294 if (effect == mEffects[i]) { 7295 // calling stop here will remove pre-processing effect from the audio HAL. 7296 // This is safe as we hold the EffectChain mutex which guarantees that we are not in 7297 // the middle of a read from audio HAL 7298 if (mEffects[i]->state() == EffectModule::ACTIVE || 7299 mEffects[i]->state() == EffectModule::STOPPING) { 7300 mEffects[i]->stop(); 7301 } 7302 if (type == EFFECT_FLAG_TYPE_AUXILIARY) { 7303 delete[] effect->inBuffer(); 7304 } else { 7305 if (i == size - 1 && i != 0) { 7306 mEffects[i - 1]->setOutBuffer(mOutBuffer); 7307 mEffects[i - 1]->configure(); 7308 } 7309 } 7310 mEffects.removeAt(i); 7311 ALOGV("removeEffect_l() effect %p, removed from chain %p at rank %d", effect.get(), this, i); 7312 break; 7313 } 7314 } 7315 7316 return mEffects.size(); 7317} 7318 7319// setDevice_l() must be called with PlaybackThread::mLock held 7320void AudioFlinger::EffectChain::setDevice_l(uint32_t device) 7321{ 7322 size_t size = mEffects.size(); 7323 for (size_t i = 0; i < size; i++) { 7324 mEffects[i]->setDevice(device); 7325 } 7326} 7327 7328// setMode_l() must be called with PlaybackThread::mLock held 7329void AudioFlinger::EffectChain::setMode_l(uint32_t mode) 7330{ 7331 size_t size = mEffects.size(); 7332 for (size_t i = 0; i < size; i++) { 7333 mEffects[i]->setMode(mode); 7334 } 7335} 7336 7337// setVolume_l() must be called with PlaybackThread::mLock held 7338bool AudioFlinger::EffectChain::setVolume_l(uint32_t *left, uint32_t *right) 7339{ 7340 uint32_t newLeft = *left; 7341 uint32_t newRight = *right; 7342 bool hasControl = false; 7343 int ctrlIdx = -1; 7344 size_t size = mEffects.size(); 7345 7346 // first update volume controller 7347 for (size_t i = size; i > 0; i--) { 7348 if (mEffects[i - 1]->isProcessEnabled() && 7349 (mEffects[i - 1]->desc().flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL) { 7350 ctrlIdx = i - 1; 7351 hasControl = true; 7352 break; 7353 } 7354 } 7355 7356 if (ctrlIdx == mVolumeCtrlIdx && *left == mLeftVolume && *right == mRightVolume) { 7357 if (hasControl) { 7358 *left = mNewLeftVolume; 7359 *right = mNewRightVolume; 7360 } 7361 return hasControl; 7362 } 7363 7364 mVolumeCtrlIdx = ctrlIdx; 7365 mLeftVolume = newLeft; 7366 mRightVolume = newRight; 7367 7368 // second get volume update from volume controller 7369 if (ctrlIdx >= 0) { 7370 mEffects[ctrlIdx]->setVolume(&newLeft, &newRight, true); 7371 mNewLeftVolume = newLeft; 7372 mNewRightVolume = newRight; 7373 } 7374 // then indicate volume to all other effects in chain. 7375 // Pass altered volume to effects before volume controller 7376 // and requested volume to effects after controller 7377 uint32_t lVol = newLeft; 7378 uint32_t rVol = newRight; 7379 7380 for (size_t i = 0; i < size; i++) { 7381 if ((int)i == ctrlIdx) continue; 7382 // this also works for ctrlIdx == -1 when there is no volume controller 7383 if ((int)i > ctrlIdx) { 7384 lVol = *left; 7385 rVol = *right; 7386 } 7387 mEffects[i]->setVolume(&lVol, &rVol, false); 7388 } 7389 *left = newLeft; 7390 *right = newRight; 7391 7392 return hasControl; 7393} 7394 7395status_t AudioFlinger::EffectChain::dump(int fd, const Vector<String16>& args) 7396{ 7397 const size_t SIZE = 256; 7398 char buffer[SIZE]; 7399 String8 result; 7400 7401 snprintf(buffer, SIZE, "Effects for session %d:\n", mSessionId); 7402 result.append(buffer); 7403 7404 bool locked = tryLock(mLock); 7405 // failed to lock - AudioFlinger is probably deadlocked 7406 if (!locked) { 7407 result.append("\tCould not lock mutex:\n"); 7408 } 7409 7410 result.append("\tNum fx In buffer Out buffer Active tracks:\n"); 7411 snprintf(buffer, SIZE, "\t%02d 0x%08x 0x%08x %d\n", 7412 mEffects.size(), 7413 (uint32_t)mInBuffer, 7414 (uint32_t)mOutBuffer, 7415 mActiveTrackCnt); 7416 result.append(buffer); 7417 write(fd, result.string(), result.size()); 7418 7419 for (size_t i = 0; i < mEffects.size(); ++i) { 7420 sp<EffectModule> effect = mEffects[i]; 7421 if (effect != 0) { 7422 effect->dump(fd, args); 7423 } 7424 } 7425 7426 if (locked) { 7427 mLock.unlock(); 7428 } 7429 7430 return NO_ERROR; 7431} 7432 7433// must be called with ThreadBase::mLock held 7434void AudioFlinger::EffectChain::setEffectSuspended_l( 7435 const effect_uuid_t *type, bool suspend) 7436{ 7437 sp<SuspendedEffectDesc> desc; 7438 // use effect type UUID timelow as key as there is no real risk of identical 7439 // timeLow fields among effect type UUIDs. 7440 int index = mSuspendedEffects.indexOfKey(type->timeLow); 7441 if (suspend) { 7442 if (index >= 0) { 7443 desc = mSuspendedEffects.valueAt(index); 7444 } else { 7445 desc = new SuspendedEffectDesc(); 7446 memcpy(&desc->mType, type, sizeof(effect_uuid_t)); 7447 mSuspendedEffects.add(type->timeLow, desc); 7448 ALOGV("setEffectSuspended_l() add entry for %08x", type->timeLow); 7449 } 7450 if (desc->mRefCount++ == 0) { 7451 sp<EffectModule> effect = getEffectIfEnabled(type); 7452 if (effect != 0) { 7453 desc->mEffect = effect; 7454 effect->setSuspended(true); 7455 effect->setEnabled(false); 7456 } 7457 } 7458 } else { 7459 if (index < 0) { 7460 return; 7461 } 7462 desc = mSuspendedEffects.valueAt(index); 7463 if (desc->mRefCount <= 0) { 7464 LOGW("setEffectSuspended_l() restore refcount should not be 0 %d", desc->mRefCount); 7465 desc->mRefCount = 1; 7466 } 7467 if (--desc->mRefCount == 0) { 7468 ALOGV("setEffectSuspended_l() remove entry for %08x", mSuspendedEffects.keyAt(index)); 7469 if (desc->mEffect != 0) { 7470 sp<EffectModule> effect = desc->mEffect.promote(); 7471 if (effect != 0) { 7472 effect->setSuspended(false); 7473 sp<EffectHandle> handle = effect->controlHandle(); 7474 if (handle != 0) { 7475 effect->setEnabled(handle->enabled()); 7476 } 7477 } 7478 desc->mEffect.clear(); 7479 } 7480 mSuspendedEffects.removeItemsAt(index); 7481 } 7482 } 7483} 7484 7485// must be called with ThreadBase::mLock held 7486void AudioFlinger::EffectChain::setEffectSuspendedAll_l(bool suspend) 7487{ 7488 sp<SuspendedEffectDesc> desc; 7489 7490 int index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll); 7491 if (suspend) { 7492 if (index >= 0) { 7493 desc = mSuspendedEffects.valueAt(index); 7494 } else { 7495 desc = new SuspendedEffectDesc(); 7496 mSuspendedEffects.add((int)kKeyForSuspendAll, desc); 7497 ALOGV("setEffectSuspendedAll_l() add entry for 0"); 7498 } 7499 if (desc->mRefCount++ == 0) { 7500 Vector< sp<EffectModule> > effects = getSuspendEligibleEffects(); 7501 for (size_t i = 0; i < effects.size(); i++) { 7502 setEffectSuspended_l(&effects[i]->desc().type, true); 7503 } 7504 } 7505 } else { 7506 if (index < 0) { 7507 return; 7508 } 7509 desc = mSuspendedEffects.valueAt(index); 7510 if (desc->mRefCount <= 0) { 7511 LOGW("setEffectSuspendedAll_l() restore refcount should not be 0 %d", desc->mRefCount); 7512 desc->mRefCount = 1; 7513 } 7514 if (--desc->mRefCount == 0) { 7515 Vector<const effect_uuid_t *> types; 7516 for (size_t i = 0; i < mSuspendedEffects.size(); i++) { 7517 if (mSuspendedEffects.keyAt(i) == (int)kKeyForSuspendAll) { 7518 continue; 7519 } 7520 types.add(&mSuspendedEffects.valueAt(i)->mType); 7521 } 7522 for (size_t i = 0; i < types.size(); i++) { 7523 setEffectSuspended_l(types[i], false); 7524 } 7525 ALOGV("setEffectSuspendedAll_l() remove entry for %08x", mSuspendedEffects.keyAt(index)); 7526 mSuspendedEffects.removeItem((int)kKeyForSuspendAll); 7527 } 7528 } 7529} 7530 7531 7532// The volume effect is used for automated tests only 7533#ifndef OPENSL_ES_H_ 7534static const effect_uuid_t SL_IID_VOLUME_ = { 0x09e8ede0, 0xddde, 0x11db, 0xb4f6, 7535 { 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } }; 7536const effect_uuid_t * const SL_IID_VOLUME = &SL_IID_VOLUME_; 7537#endif //OPENSL_ES_H_ 7538 7539bool AudioFlinger::EffectChain::isEffectEligibleForSuspend(const effect_descriptor_t& desc) 7540{ 7541 // auxiliary effects and visualizer are never suspended on output mix 7542 if ((mSessionId == AUDIO_SESSION_OUTPUT_MIX) && 7543 (((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) || 7544 (memcmp(&desc.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0) || 7545 (memcmp(&desc.type, SL_IID_VOLUME, sizeof(effect_uuid_t)) == 0))) { 7546 return false; 7547 } 7548 return true; 7549} 7550 7551Vector< sp<AudioFlinger::EffectModule> > AudioFlinger::EffectChain::getSuspendEligibleEffects() 7552{ 7553 Vector< sp<EffectModule> > effects; 7554 for (size_t i = 0; i < mEffects.size(); i++) { 7555 if (!isEffectEligibleForSuspend(mEffects[i]->desc())) { 7556 continue; 7557 } 7558 effects.add(mEffects[i]); 7559 } 7560 return effects; 7561} 7562 7563sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectIfEnabled( 7564 const effect_uuid_t *type) 7565{ 7566 sp<EffectModule> effect; 7567 effect = getEffectFromType_l(type); 7568 if (effect != 0 && !effect->isEnabled()) { 7569 effect.clear(); 7570 } 7571 return effect; 7572} 7573 7574void AudioFlinger::EffectChain::checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, 7575 bool enabled) 7576{ 7577 int index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow); 7578 if (enabled) { 7579 if (index < 0) { 7580 // if the effect is not suspend check if all effects are suspended 7581 index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll); 7582 if (index < 0) { 7583 return; 7584 } 7585 if (!isEffectEligibleForSuspend(effect->desc())) { 7586 return; 7587 } 7588 setEffectSuspended_l(&effect->desc().type, enabled); 7589 index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow); 7590 if (index < 0) { 7591 LOGW("checkSuspendOnEffectEnabled() Fx should be suspended here!"); 7592 return; 7593 } 7594 } 7595 ALOGV("checkSuspendOnEffectEnabled() enable suspending fx %08x", 7596 effect->desc().type.timeLow); 7597 sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index); 7598 // if effect is requested to suspended but was not yet enabled, supend it now. 7599 if (desc->mEffect == 0) { 7600 desc->mEffect = effect; 7601 effect->setEnabled(false); 7602 effect->setSuspended(true); 7603 } 7604 } else { 7605 if (index < 0) { 7606 return; 7607 } 7608 ALOGV("checkSuspendOnEffectEnabled() disable restoring fx %08x", 7609 effect->desc().type.timeLow); 7610 sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index); 7611 desc->mEffect.clear(); 7612 effect->setSuspended(false); 7613 } 7614} 7615 7616#undef LOG_TAG 7617#define LOG_TAG "AudioFlinger" 7618 7619// ---------------------------------------------------------------------------- 7620 7621status_t AudioFlinger::onTransact( 7622 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 7623{ 7624 return BnAudioFlinger::onTransact(code, data, reply, flags); 7625} 7626 7627}; // namespace android 7628