Effects.cpp revision aaa44478a373232d8416657035a9020f9c7aa7c3
1/* 2** 3** Copyright 2012, 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 "Configuration.h" 23#include <utils/Log.h> 24#include <audio_effects/effect_visualizer.h> 25#include <audio_utils/primitives.h> 26#include <private/media/AudioEffectShared.h> 27#include <media/EffectsFactoryApi.h> 28 29#include "AudioFlinger.h" 30#include "ServiceUtilities.h" 31 32// ---------------------------------------------------------------------------- 33 34// Note: the following macro is used for extremely verbose logging message. In 35// order to run with ALOG_ASSERT turned on, we need to have LOG_NDEBUG set to 36// 0; but one side effect of this is to turn all LOGV's as well. Some messages 37// are so verbose that we want to suppress them even when we have ALOG_ASSERT 38// turned on. Do not uncomment the #def below unless you really know what you 39// are doing and want to see all of the extremely verbose messages. 40//#define VERY_VERY_VERBOSE_LOGGING 41#ifdef VERY_VERY_VERBOSE_LOGGING 42#define ALOGVV ALOGV 43#else 44#define ALOGVV(a...) do { } while(0) 45#endif 46 47#define min(a, b) ((a) < (b) ? (a) : (b)) 48 49namespace android { 50 51// ---------------------------------------------------------------------------- 52// EffectModule implementation 53// ---------------------------------------------------------------------------- 54 55#undef LOG_TAG 56#define LOG_TAG "AudioFlinger::EffectModule" 57 58AudioFlinger::EffectModule::EffectModule(ThreadBase *thread, 59 const wp<AudioFlinger::EffectChain>& chain, 60 effect_descriptor_t *desc, 61 int id, 62 int sessionId) 63 : mPinned(sessionId > AUDIO_SESSION_OUTPUT_MIX), 64 mThread(thread), mChain(chain), mId(id), mSessionId(sessionId), 65 mDescriptor(*desc), 66 // mConfig is set by configure() and not used before then 67 mEffectInterface(NULL), 68 mStatus(NO_INIT), mState(IDLE), 69 // mMaxDisableWaitCnt is set by configure() and not used before then 70 // mDisableWaitCnt is set by process() and updateState() and not used before then 71 mSuspended(false), 72 mAudioFlinger(thread->mAudioFlinger) 73{ 74 ALOGV("Constructor %p", this); 75 int lStatus; 76 77 // create effect engine from effect factory 78 mStatus = EffectCreate(&desc->uuid, sessionId, thread->id(), &mEffectInterface); 79 80 if (mStatus != NO_ERROR) { 81 return; 82 } 83 lStatus = init(); 84 if (lStatus < 0) { 85 mStatus = lStatus; 86 goto Error; 87 } 88 89 ALOGV("Constructor success name %s, Interface %p", mDescriptor.name, mEffectInterface); 90 return; 91Error: 92 EffectRelease(mEffectInterface); 93 mEffectInterface = NULL; 94 ALOGV("Constructor Error %d", mStatus); 95} 96 97AudioFlinger::EffectModule::~EffectModule() 98{ 99 ALOGV("Destructor %p", this); 100 if (mEffectInterface != NULL) { 101 remove_effect_from_hal_l(); 102 // release effect engine 103 EffectRelease(mEffectInterface); 104 } 105} 106 107status_t AudioFlinger::EffectModule::addHandle(EffectHandle *handle) 108{ 109 status_t status; 110 111 Mutex::Autolock _l(mLock); 112 int priority = handle->priority(); 113 size_t size = mHandles.size(); 114 EffectHandle *controlHandle = NULL; 115 size_t i; 116 for (i = 0; i < size; i++) { 117 EffectHandle *h = mHandles[i]; 118 if (h == NULL || h->destroyed_l()) { 119 continue; 120 } 121 // first non destroyed handle is considered in control 122 if (controlHandle == NULL) { 123 controlHandle = h; 124 } 125 if (h->priority() <= priority) { 126 break; 127 } 128 } 129 // if inserted in first place, move effect control from previous owner to this handle 130 if (i == 0) { 131 bool enabled = false; 132 if (controlHandle != NULL) { 133 enabled = controlHandle->enabled(); 134 controlHandle->setControl(false/*hasControl*/, true /*signal*/, enabled /*enabled*/); 135 } 136 handle->setControl(true /*hasControl*/, false /*signal*/, enabled /*enabled*/); 137 status = NO_ERROR; 138 } else { 139 status = ALREADY_EXISTS; 140 } 141 ALOGV("addHandle() %p added handle %p in position %d", this, handle, i); 142 mHandles.insertAt(handle, i); 143 return status; 144} 145 146size_t AudioFlinger::EffectModule::removeHandle(EffectHandle *handle) 147{ 148 Mutex::Autolock _l(mLock); 149 size_t size = mHandles.size(); 150 size_t i; 151 for (i = 0; i < size; i++) { 152 if (mHandles[i] == handle) { 153 break; 154 } 155 } 156 if (i == size) { 157 return size; 158 } 159 ALOGV("removeHandle() %p removed handle %p in position %d", this, handle, i); 160 161 mHandles.removeAt(i); 162 // if removed from first place, move effect control from this handle to next in line 163 if (i == 0) { 164 EffectHandle *h = controlHandle_l(); 165 if (h != NULL) { 166 h->setControl(true /*hasControl*/, true /*signal*/ , handle->enabled() /*enabled*/); 167 } 168 } 169 170 // Prevent calls to process() and other functions on effect interface from now on. 171 // The effect engine will be released by the destructor when the last strong reference on 172 // this object is released which can happen after next process is called. 173 if (mHandles.size() == 0 && !mPinned) { 174 mState = DESTROYED; 175 } 176 177 return mHandles.size(); 178} 179 180// must be called with EffectModule::mLock held 181AudioFlinger::EffectHandle *AudioFlinger::EffectModule::controlHandle_l() 182{ 183 // the first valid handle in the list has control over the module 184 for (size_t i = 0; i < mHandles.size(); i++) { 185 EffectHandle *h = mHandles[i]; 186 if (h != NULL && !h->destroyed_l()) { 187 return h; 188 } 189 } 190 191 return NULL; 192} 193 194size_t AudioFlinger::EffectModule::disconnect(EffectHandle *handle, bool unpinIfLast) 195{ 196 ALOGV("disconnect() %p handle %p", this, handle); 197 // keep a strong reference on this EffectModule to avoid calling the 198 // destructor before we exit 199 sp<EffectModule> keep(this); 200 { 201 if (removeHandle(handle) == 0) { 202 if (!isPinned() || unpinIfLast) { 203 sp<ThreadBase> thread = mThread.promote(); 204 if (thread != 0) { 205 Mutex::Autolock _l(thread->mLock); 206 thread->removeEffect_l(this); 207 } 208 sp<AudioFlinger> af = mAudioFlinger.promote(); 209 if (af != 0) { 210 af->updateOrphanEffectChains(this); 211 } 212 AudioSystem::unregisterEffect(mId); 213 } 214 } 215 } 216 return mHandles.size(); 217} 218 219void AudioFlinger::EffectModule::updateState() { 220 Mutex::Autolock _l(mLock); 221 222 switch (mState) { 223 case RESTART: 224 reset_l(); 225 // FALL THROUGH 226 227 case STARTING: 228 // clear auxiliary effect input buffer for next accumulation 229 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 230 memset(mConfig.inputCfg.buffer.raw, 231 0, 232 mConfig.inputCfg.buffer.frameCount*sizeof(int32_t)); 233 } 234 if (start_l() == NO_ERROR) { 235 mState = ACTIVE; 236 } else { 237 mState = IDLE; 238 } 239 break; 240 case STOPPING: 241 if (stop_l() == NO_ERROR) { 242 mDisableWaitCnt = mMaxDisableWaitCnt; 243 } else { 244 mDisableWaitCnt = 1; // will cause immediate transition to IDLE 245 } 246 mState = STOPPED; 247 break; 248 case STOPPED: 249 // mDisableWaitCnt is forced to 1 by process() when the engine indicates the end of the 250 // turn off sequence. 251 if (--mDisableWaitCnt == 0) { 252 reset_l(); 253 mState = IDLE; 254 } 255 break; 256 default: //IDLE , ACTIVE, DESTROYED 257 break; 258 } 259} 260 261void AudioFlinger::EffectModule::process() 262{ 263 Mutex::Autolock _l(mLock); 264 265 if (mState == DESTROYED || mEffectInterface == NULL || 266 mConfig.inputCfg.buffer.raw == NULL || 267 mConfig.outputCfg.buffer.raw == NULL) { 268 return; 269 } 270 271 if (isProcessEnabled()) { 272 // do 32 bit to 16 bit conversion for auxiliary effect input buffer 273 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 274 ditherAndClamp(mConfig.inputCfg.buffer.s32, 275 mConfig.inputCfg.buffer.s32, 276 mConfig.inputCfg.buffer.frameCount/2); 277 } 278 279 // do the actual processing in the effect engine 280 int ret = (*mEffectInterface)->process(mEffectInterface, 281 &mConfig.inputCfg.buffer, 282 &mConfig.outputCfg.buffer); 283 284 // force transition to IDLE state when engine is ready 285 if (mState == STOPPED && ret == -ENODATA) { 286 mDisableWaitCnt = 1; 287 } 288 289 // clear auxiliary effect input buffer for next accumulation 290 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 291 memset(mConfig.inputCfg.buffer.raw, 0, 292 mConfig.inputCfg.buffer.frameCount*sizeof(int32_t)); 293 } 294 } else if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_INSERT && 295 mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) { 296 // If an insert effect is idle and input buffer is different from output buffer, 297 // accumulate input onto output 298 sp<EffectChain> chain = mChain.promote(); 299 if (chain != 0 && chain->activeTrackCnt() != 0) { 300 size_t frameCnt = mConfig.inputCfg.buffer.frameCount * 2; //always stereo here 301 int16_t *in = mConfig.inputCfg.buffer.s16; 302 int16_t *out = mConfig.outputCfg.buffer.s16; 303 for (size_t i = 0; i < frameCnt; i++) { 304 out[i] = clamp16((int32_t)out[i] + (int32_t)in[i]); 305 } 306 } 307 } 308} 309 310void AudioFlinger::EffectModule::reset_l() 311{ 312 if (mStatus != NO_ERROR || mEffectInterface == NULL) { 313 return; 314 } 315 (*mEffectInterface)->command(mEffectInterface, EFFECT_CMD_RESET, 0, NULL, 0, NULL); 316} 317 318status_t AudioFlinger::EffectModule::configure() 319{ 320 status_t status; 321 sp<ThreadBase> thread; 322 uint32_t size; 323 audio_channel_mask_t channelMask; 324 325 if (mEffectInterface == NULL) { 326 status = NO_INIT; 327 goto exit; 328 } 329 330 thread = mThread.promote(); 331 if (thread == 0) { 332 status = DEAD_OBJECT; 333 goto exit; 334 } 335 336 // TODO: handle configuration of effects replacing track process 337 channelMask = thread->channelMask(); 338 339 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 340 mConfig.inputCfg.channels = AUDIO_CHANNEL_OUT_MONO; 341 } else { 342 mConfig.inputCfg.channels = channelMask; 343 } 344 mConfig.outputCfg.channels = channelMask; 345 mConfig.inputCfg.format = AUDIO_FORMAT_PCM_16_BIT; 346 mConfig.outputCfg.format = AUDIO_FORMAT_PCM_16_BIT; 347 mConfig.inputCfg.samplingRate = thread->sampleRate(); 348 mConfig.outputCfg.samplingRate = mConfig.inputCfg.samplingRate; 349 mConfig.inputCfg.bufferProvider.cookie = NULL; 350 mConfig.inputCfg.bufferProvider.getBuffer = NULL; 351 mConfig.inputCfg.bufferProvider.releaseBuffer = NULL; 352 mConfig.outputCfg.bufferProvider.cookie = NULL; 353 mConfig.outputCfg.bufferProvider.getBuffer = NULL; 354 mConfig.outputCfg.bufferProvider.releaseBuffer = NULL; 355 mConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ; 356 // Insert effect: 357 // - in session AUDIO_SESSION_OUTPUT_MIX or AUDIO_SESSION_OUTPUT_STAGE, 358 // always overwrites output buffer: input buffer == output buffer 359 // - in other sessions: 360 // last effect in the chain accumulates in output buffer: input buffer != output buffer 361 // other effect: overwrites output buffer: input buffer == output buffer 362 // Auxiliary effect: 363 // accumulates in output buffer: input buffer != output buffer 364 // Therefore: accumulate <=> input buffer != output buffer 365 if (mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) { 366 mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_ACCUMULATE; 367 } else { 368 mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_WRITE; 369 } 370 mConfig.inputCfg.mask = EFFECT_CONFIG_ALL; 371 mConfig.outputCfg.mask = EFFECT_CONFIG_ALL; 372 mConfig.inputCfg.buffer.frameCount = thread->frameCount(); 373 mConfig.outputCfg.buffer.frameCount = mConfig.inputCfg.buffer.frameCount; 374 375 ALOGV("configure() %p thread %p buffer %p framecount %d", 376 this, thread.get(), mConfig.inputCfg.buffer.raw, mConfig.inputCfg.buffer.frameCount); 377 378 status_t cmdStatus; 379 size = sizeof(int); 380 status = (*mEffectInterface)->command(mEffectInterface, 381 EFFECT_CMD_SET_CONFIG, 382 sizeof(effect_config_t), 383 &mConfig, 384 &size, 385 &cmdStatus); 386 if (status == 0) { 387 status = cmdStatus; 388 } 389 390 if (status == 0 && 391 (memcmp(&mDescriptor.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0)) { 392 uint32_t buf32[sizeof(effect_param_t) / sizeof(uint32_t) + 2]; 393 effect_param_t *p = (effect_param_t *)buf32; 394 395 p->psize = sizeof(uint32_t); 396 p->vsize = sizeof(uint32_t); 397 size = sizeof(int); 398 *(int32_t *)p->data = VISUALIZER_PARAM_LATENCY; 399 400 uint32_t latency = 0; 401 PlaybackThread *pbt = thread->mAudioFlinger->checkPlaybackThread_l(thread->mId); 402 if (pbt != NULL) { 403 latency = pbt->latency_l(); 404 } 405 406 *((int32_t *)p->data + 1)= latency; 407 (*mEffectInterface)->command(mEffectInterface, 408 EFFECT_CMD_SET_PARAM, 409 sizeof(effect_param_t) + 8, 410 &buf32, 411 &size, 412 &cmdStatus); 413 } 414 415 mMaxDisableWaitCnt = (MAX_DISABLE_TIME_MS * mConfig.outputCfg.samplingRate) / 416 (1000 * mConfig.outputCfg.buffer.frameCount); 417 418exit: 419 mStatus = status; 420 return status; 421} 422 423status_t AudioFlinger::EffectModule::init() 424{ 425 Mutex::Autolock _l(mLock); 426 if (mEffectInterface == NULL) { 427 return NO_INIT; 428 } 429 status_t cmdStatus; 430 uint32_t size = sizeof(status_t); 431 status_t status = (*mEffectInterface)->command(mEffectInterface, 432 EFFECT_CMD_INIT, 433 0, 434 NULL, 435 &size, 436 &cmdStatus); 437 if (status == 0) { 438 status = cmdStatus; 439 } 440 return status; 441} 442 443status_t AudioFlinger::EffectModule::start() 444{ 445 Mutex::Autolock _l(mLock); 446 return start_l(); 447} 448 449status_t AudioFlinger::EffectModule::start_l() 450{ 451 if (mEffectInterface == NULL) { 452 return NO_INIT; 453 } 454 if (mStatus != NO_ERROR) { 455 return mStatus; 456 } 457 status_t cmdStatus; 458 uint32_t size = sizeof(status_t); 459 status_t status = (*mEffectInterface)->command(mEffectInterface, 460 EFFECT_CMD_ENABLE, 461 0, 462 NULL, 463 &size, 464 &cmdStatus); 465 if (status == 0) { 466 status = cmdStatus; 467 } 468 if (status == 0 && 469 ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 470 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC)) { 471 sp<ThreadBase> thread = mThread.promote(); 472 if (thread != 0) { 473 audio_stream_t *stream = thread->stream(); 474 if (stream != NULL) { 475 stream->add_audio_effect(stream, mEffectInterface); 476 } 477 } 478 } 479 return status; 480} 481 482status_t AudioFlinger::EffectModule::stop() 483{ 484 Mutex::Autolock _l(mLock); 485 return stop_l(); 486} 487 488status_t AudioFlinger::EffectModule::stop_l() 489{ 490 if (mEffectInterface == NULL) { 491 return NO_INIT; 492 } 493 if (mStatus != NO_ERROR) { 494 return mStatus; 495 } 496 status_t cmdStatus = NO_ERROR; 497 uint32_t size = sizeof(status_t); 498 status_t status = (*mEffectInterface)->command(mEffectInterface, 499 EFFECT_CMD_DISABLE, 500 0, 501 NULL, 502 &size, 503 &cmdStatus); 504 if (status == NO_ERROR) { 505 status = cmdStatus; 506 } 507 if (status == NO_ERROR) { 508 status = remove_effect_from_hal_l(); 509 } 510 return status; 511} 512 513status_t AudioFlinger::EffectModule::remove_effect_from_hal_l() 514{ 515 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 516 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) { 517 sp<ThreadBase> thread = mThread.promote(); 518 if (thread != 0) { 519 audio_stream_t *stream = thread->stream(); 520 if (stream != NULL) { 521 stream->remove_audio_effect(stream, mEffectInterface); 522 } 523 } 524 } 525 return NO_ERROR; 526} 527 528status_t AudioFlinger::EffectModule::command(uint32_t cmdCode, 529 uint32_t cmdSize, 530 void *pCmdData, 531 uint32_t *replySize, 532 void *pReplyData) 533{ 534 Mutex::Autolock _l(mLock); 535 ALOGVV("command(), cmdCode: %d, mEffectInterface: %p", cmdCode, mEffectInterface); 536 537 if (mState == DESTROYED || mEffectInterface == NULL) { 538 return NO_INIT; 539 } 540 if (mStatus != NO_ERROR) { 541 return mStatus; 542 } 543 status_t status = (*mEffectInterface)->command(mEffectInterface, 544 cmdCode, 545 cmdSize, 546 pCmdData, 547 replySize, 548 pReplyData); 549 if (cmdCode != EFFECT_CMD_GET_PARAM && status == NO_ERROR) { 550 uint32_t size = (replySize == NULL) ? 0 : *replySize; 551 for (size_t i = 1; i < mHandles.size(); i++) { 552 EffectHandle *h = mHandles[i]; 553 if (h != NULL && !h->destroyed_l()) { 554 h->commandExecuted(cmdCode, cmdSize, pCmdData, size, pReplyData); 555 } 556 } 557 } 558 return status; 559} 560 561status_t AudioFlinger::EffectModule::setEnabled(bool enabled) 562{ 563 Mutex::Autolock _l(mLock); 564 return setEnabled_l(enabled); 565} 566 567// must be called with EffectModule::mLock held 568status_t AudioFlinger::EffectModule::setEnabled_l(bool enabled) 569{ 570 571 ALOGV("setEnabled %p enabled %d", this, enabled); 572 573 if (enabled != isEnabled()) { 574 status_t status = AudioSystem::setEffectEnabled(mId, enabled); 575 if (enabled && status != NO_ERROR) { 576 return status; 577 } 578 579 switch (mState) { 580 // going from disabled to enabled 581 case IDLE: 582 mState = STARTING; 583 break; 584 case STOPPED: 585 mState = RESTART; 586 break; 587 case STOPPING: 588 mState = ACTIVE; 589 break; 590 591 // going from enabled to disabled 592 case RESTART: 593 mState = STOPPED; 594 break; 595 case STARTING: 596 mState = IDLE; 597 break; 598 case ACTIVE: 599 mState = STOPPING; 600 break; 601 case DESTROYED: 602 return NO_ERROR; // simply ignore as we are being destroyed 603 } 604 for (size_t i = 1; i < mHandles.size(); i++) { 605 EffectHandle *h = mHandles[i]; 606 if (h != NULL && !h->destroyed_l()) { 607 h->setEnabled(enabled); 608 } 609 } 610 } 611 return NO_ERROR; 612} 613 614bool AudioFlinger::EffectModule::isEnabled() const 615{ 616 switch (mState) { 617 case RESTART: 618 case STARTING: 619 case ACTIVE: 620 return true; 621 case IDLE: 622 case STOPPING: 623 case STOPPED: 624 case DESTROYED: 625 default: 626 return false; 627 } 628} 629 630bool AudioFlinger::EffectModule::isProcessEnabled() const 631{ 632 if (mStatus != NO_ERROR) { 633 return false; 634 } 635 636 switch (mState) { 637 case RESTART: 638 case ACTIVE: 639 case STOPPING: 640 case STOPPED: 641 return true; 642 case IDLE: 643 case STARTING: 644 case DESTROYED: 645 default: 646 return false; 647 } 648} 649 650status_t AudioFlinger::EffectModule::setVolume(uint32_t *left, uint32_t *right, bool controller) 651{ 652 Mutex::Autolock _l(mLock); 653 if (mStatus != NO_ERROR) { 654 return mStatus; 655 } 656 status_t status = NO_ERROR; 657 // Send volume indication if EFFECT_FLAG_VOLUME_IND is set and read back altered volume 658 // if controller flag is set (Note that controller == TRUE => EFFECT_FLAG_VOLUME_CTRL set) 659 if (isProcessEnabled() && 660 ((mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL || 661 (mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_IND)) { 662 status_t cmdStatus; 663 uint32_t volume[2]; 664 uint32_t *pVolume = NULL; 665 uint32_t size = sizeof(volume); 666 volume[0] = *left; 667 volume[1] = *right; 668 if (controller) { 669 pVolume = volume; 670 } 671 status = (*mEffectInterface)->command(mEffectInterface, 672 EFFECT_CMD_SET_VOLUME, 673 size, 674 volume, 675 &size, 676 pVolume); 677 if (controller && status == NO_ERROR && size == sizeof(volume)) { 678 *left = volume[0]; 679 *right = volume[1]; 680 } 681 } 682 return status; 683} 684 685status_t AudioFlinger::EffectModule::setDevice(audio_devices_t device) 686{ 687 if (device == AUDIO_DEVICE_NONE) { 688 return NO_ERROR; 689 } 690 691 Mutex::Autolock _l(mLock); 692 if (mStatus != NO_ERROR) { 693 return mStatus; 694 } 695 status_t status = NO_ERROR; 696 if ((mDescriptor.flags & EFFECT_FLAG_DEVICE_MASK) == EFFECT_FLAG_DEVICE_IND) { 697 status_t cmdStatus; 698 uint32_t size = sizeof(status_t); 699 uint32_t cmd = audio_is_output_devices(device) ? EFFECT_CMD_SET_DEVICE : 700 EFFECT_CMD_SET_INPUT_DEVICE; 701 status = (*mEffectInterface)->command(mEffectInterface, 702 cmd, 703 sizeof(uint32_t), 704 &device, 705 &size, 706 &cmdStatus); 707 } 708 return status; 709} 710 711status_t AudioFlinger::EffectModule::setMode(audio_mode_t mode) 712{ 713 Mutex::Autolock _l(mLock); 714 if (mStatus != NO_ERROR) { 715 return mStatus; 716 } 717 status_t status = NO_ERROR; 718 if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_MODE_MASK) == EFFECT_FLAG_AUDIO_MODE_IND) { 719 status_t cmdStatus; 720 uint32_t size = sizeof(status_t); 721 status = (*mEffectInterface)->command(mEffectInterface, 722 EFFECT_CMD_SET_AUDIO_MODE, 723 sizeof(audio_mode_t), 724 &mode, 725 &size, 726 &cmdStatus); 727 if (status == NO_ERROR) { 728 status = cmdStatus; 729 } 730 } 731 return status; 732} 733 734status_t AudioFlinger::EffectModule::setAudioSource(audio_source_t source) 735{ 736 Mutex::Autolock _l(mLock); 737 if (mStatus != NO_ERROR) { 738 return mStatus; 739 } 740 status_t status = NO_ERROR; 741 if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_SOURCE_MASK) == EFFECT_FLAG_AUDIO_SOURCE_IND) { 742 uint32_t size = 0; 743 status = (*mEffectInterface)->command(mEffectInterface, 744 EFFECT_CMD_SET_AUDIO_SOURCE, 745 sizeof(audio_source_t), 746 &source, 747 &size, 748 NULL); 749 } 750 return status; 751} 752 753void AudioFlinger::EffectModule::setSuspended(bool suspended) 754{ 755 Mutex::Autolock _l(mLock); 756 mSuspended = suspended; 757} 758 759bool AudioFlinger::EffectModule::suspended() const 760{ 761 Mutex::Autolock _l(mLock); 762 return mSuspended; 763} 764 765bool AudioFlinger::EffectModule::purgeHandles() 766{ 767 bool enabled = false; 768 Mutex::Autolock _l(mLock); 769 for (size_t i = 0; i < mHandles.size(); i++) { 770 EffectHandle *handle = mHandles[i]; 771 if (handle != NULL && !handle->destroyed_l()) { 772 handle->effect().clear(); 773 if (handle->hasControl()) { 774 enabled = handle->enabled(); 775 } 776 } 777 } 778 return enabled; 779} 780 781status_t AudioFlinger::EffectModule::setOffloaded(bool offloaded, audio_io_handle_t io) 782{ 783 Mutex::Autolock _l(mLock); 784 if (mStatus != NO_ERROR) { 785 return mStatus; 786 } 787 status_t status = NO_ERROR; 788 if ((mDescriptor.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) != 0) { 789 status_t cmdStatus; 790 uint32_t size = sizeof(status_t); 791 effect_offload_param_t cmd; 792 793 cmd.isOffload = offloaded; 794 cmd.ioHandle = io; 795 status = (*mEffectInterface)->command(mEffectInterface, 796 EFFECT_CMD_OFFLOAD, 797 sizeof(effect_offload_param_t), 798 &cmd, 799 &size, 800 &cmdStatus); 801 if (status == NO_ERROR) { 802 status = cmdStatus; 803 } 804 mOffloaded = (status == NO_ERROR) ? offloaded : false; 805 } else { 806 if (offloaded) { 807 status = INVALID_OPERATION; 808 } 809 mOffloaded = false; 810 } 811 ALOGV("setOffloaded() offloaded %d io %d status %d", offloaded, io, status); 812 return status; 813} 814 815bool AudioFlinger::EffectModule::isOffloaded() const 816{ 817 Mutex::Autolock _l(mLock); 818 return mOffloaded; 819} 820 821String8 effectFlagsToString(uint32_t flags) { 822 String8 s; 823 824 s.append("conn. mode: "); 825 switch (flags & EFFECT_FLAG_TYPE_MASK) { 826 case EFFECT_FLAG_TYPE_INSERT: s.append("insert"); break; 827 case EFFECT_FLAG_TYPE_AUXILIARY: s.append("auxiliary"); break; 828 case EFFECT_FLAG_TYPE_REPLACE: s.append("replace"); break; 829 case EFFECT_FLAG_TYPE_PRE_PROC: s.append("preproc"); break; 830 case EFFECT_FLAG_TYPE_POST_PROC: s.append("postproc"); break; 831 default: s.append("unknown/reserved"); break; 832 } 833 s.append(", "); 834 835 s.append("insert pref: "); 836 switch (flags & EFFECT_FLAG_INSERT_MASK) { 837 case EFFECT_FLAG_INSERT_ANY: s.append("any"); break; 838 case EFFECT_FLAG_INSERT_FIRST: s.append("first"); break; 839 case EFFECT_FLAG_INSERT_LAST: s.append("last"); break; 840 case EFFECT_FLAG_INSERT_EXCLUSIVE: s.append("exclusive"); break; 841 default: s.append("unknown/reserved"); break; 842 } 843 s.append(", "); 844 845 s.append("volume mgmt: "); 846 switch (flags & EFFECT_FLAG_VOLUME_MASK) { 847 case EFFECT_FLAG_VOLUME_NONE: s.append("none"); break; 848 case EFFECT_FLAG_VOLUME_CTRL: s.append("implements control"); break; 849 case EFFECT_FLAG_VOLUME_IND: s.append("requires indication"); break; 850 default: s.append("unknown/reserved"); break; 851 } 852 s.append(", "); 853 854 uint32_t devind = flags & EFFECT_FLAG_DEVICE_MASK; 855 if (devind) { 856 s.append("device indication: "); 857 switch (devind) { 858 case EFFECT_FLAG_DEVICE_IND: s.append("requires updates"); break; 859 default: s.append("unknown/reserved"); break; 860 } 861 s.append(", "); 862 } 863 864 s.append("input mode: "); 865 switch (flags & EFFECT_FLAG_INPUT_MASK) { 866 case EFFECT_FLAG_INPUT_DIRECT: s.append("direct"); break; 867 case EFFECT_FLAG_INPUT_PROVIDER: s.append("provider"); break; 868 case EFFECT_FLAG_INPUT_BOTH: s.append("direct+provider"); break; 869 default: s.append("not set"); break; 870 } 871 s.append(", "); 872 873 s.append("output mode: "); 874 switch (flags & EFFECT_FLAG_OUTPUT_MASK) { 875 case EFFECT_FLAG_OUTPUT_DIRECT: s.append("direct"); break; 876 case EFFECT_FLAG_OUTPUT_PROVIDER: s.append("provider"); break; 877 case EFFECT_FLAG_OUTPUT_BOTH: s.append("direct+provider"); break; 878 default: s.append("not set"); break; 879 } 880 s.append(", "); 881 882 uint32_t accel = flags & EFFECT_FLAG_HW_ACC_MASK; 883 if (accel) { 884 s.append("hardware acceleration: "); 885 switch (accel) { 886 case EFFECT_FLAG_HW_ACC_SIMPLE: s.append("non-tunneled"); break; 887 case EFFECT_FLAG_HW_ACC_TUNNEL: s.append("tunneled"); break; 888 default: s.append("unknown/reserved"); break; 889 } 890 s.append(", "); 891 } 892 893 uint32_t modeind = flags & EFFECT_FLAG_AUDIO_MODE_MASK; 894 if (modeind) { 895 s.append("mode indication: "); 896 switch (modeind) { 897 case EFFECT_FLAG_AUDIO_MODE_IND: s.append("required"); break; 898 default: s.append("unknown/reserved"); break; 899 } 900 s.append(", "); 901 } 902 903 uint32_t srcind = flags & EFFECT_FLAG_AUDIO_SOURCE_MASK; 904 if (srcind) { 905 s.append("source indication: "); 906 switch (srcind) { 907 case EFFECT_FLAG_AUDIO_SOURCE_IND: s.append("required"); break; 908 default: s.append("unknown/reserved"); break; 909 } 910 s.append(", "); 911 } 912 913 if (flags & EFFECT_FLAG_OFFLOAD_MASK) { 914 s.append("offloadable, "); 915 } 916 917 int len = s.length(); 918 if (s.length() > 2) { 919 char *str = s.lockBuffer(len); 920 s.unlockBuffer(len - 2); 921 } 922 return s; 923} 924 925 926void AudioFlinger::EffectModule::dump(int fd, const Vector<String16>& args __unused) 927{ 928 const size_t SIZE = 256; 929 char buffer[SIZE]; 930 String8 result; 931 932 snprintf(buffer, SIZE, "\tEffect ID %d:\n", mId); 933 result.append(buffer); 934 935 bool locked = AudioFlinger::dumpTryLock(mLock); 936 // failed to lock - AudioFlinger is probably deadlocked 937 if (!locked) { 938 result.append("\t\tCould not lock Fx mutex:\n"); 939 } 940 941 result.append("\t\tSession Status State Engine:\n"); 942 snprintf(buffer, SIZE, "\t\t%05d %03d %03d %p\n", 943 mSessionId, mStatus, mState, mEffectInterface); 944 result.append(buffer); 945 946 result.append("\t\tDescriptor:\n"); 947 snprintf(buffer, SIZE, "\t\t- UUID: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n", 948 mDescriptor.uuid.timeLow, mDescriptor.uuid.timeMid, mDescriptor.uuid.timeHiAndVersion, 949 mDescriptor.uuid.clockSeq, mDescriptor.uuid.node[0], mDescriptor.uuid.node[1], 950 mDescriptor.uuid.node[2], 951 mDescriptor.uuid.node[3],mDescriptor.uuid.node[4],mDescriptor.uuid.node[5]); 952 result.append(buffer); 953 snprintf(buffer, SIZE, "\t\t- TYPE: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n", 954 mDescriptor.type.timeLow, mDescriptor.type.timeMid, 955 mDescriptor.type.timeHiAndVersion, 956 mDescriptor.type.clockSeq, mDescriptor.type.node[0], mDescriptor.type.node[1], 957 mDescriptor.type.node[2], 958 mDescriptor.type.node[3],mDescriptor.type.node[4],mDescriptor.type.node[5]); 959 result.append(buffer); 960 snprintf(buffer, SIZE, "\t\t- apiVersion: %08X\n\t\t- flags: %08X (%s)\n", 961 mDescriptor.apiVersion, 962 mDescriptor.flags, 963 effectFlagsToString(mDescriptor.flags).string()); 964 result.append(buffer); 965 snprintf(buffer, SIZE, "\t\t- name: %s\n", 966 mDescriptor.name); 967 result.append(buffer); 968 snprintf(buffer, SIZE, "\t\t- implementor: %s\n", 969 mDescriptor.implementor); 970 result.append(buffer); 971 972 result.append("\t\t- Input configuration:\n"); 973 result.append("\t\t\tFrames Smp rate Channels Format Buffer\n"); 974 snprintf(buffer, SIZE, "\t\t\t%05zu %05d %08x %6d (%s) %p\n", 975 mConfig.inputCfg.buffer.frameCount, 976 mConfig.inputCfg.samplingRate, 977 mConfig.inputCfg.channels, 978 mConfig.inputCfg.format, 979 formatToString((audio_format_t)mConfig.inputCfg.format), 980 mConfig.inputCfg.buffer.raw); 981 result.append(buffer); 982 983 result.append("\t\t- Output configuration:\n"); 984 result.append("\t\t\tBuffer Frames Smp rate Channels Format\n"); 985 snprintf(buffer, SIZE, "\t\t\t%p %05zu %05d %08x %d (%s)\n", 986 mConfig.outputCfg.buffer.raw, 987 mConfig.outputCfg.buffer.frameCount, 988 mConfig.outputCfg.samplingRate, 989 mConfig.outputCfg.channels, 990 mConfig.outputCfg.format, 991 formatToString((audio_format_t)mConfig.outputCfg.format)); 992 result.append(buffer); 993 994 snprintf(buffer, SIZE, "\t\t%zu Clients:\n", mHandles.size()); 995 result.append(buffer); 996 result.append("\t\t\t Pid Priority Ctrl Locked client server\n"); 997 for (size_t i = 0; i < mHandles.size(); ++i) { 998 EffectHandle *handle = mHandles[i]; 999 if (handle != NULL && !handle->destroyed_l()) { 1000 handle->dumpToBuffer(buffer, SIZE); 1001 result.append(buffer); 1002 } 1003 } 1004 1005 write(fd, result.string(), result.length()); 1006 1007 if (locked) { 1008 mLock.unlock(); 1009 } 1010} 1011 1012// ---------------------------------------------------------------------------- 1013// EffectHandle implementation 1014// ---------------------------------------------------------------------------- 1015 1016#undef LOG_TAG 1017#define LOG_TAG "AudioFlinger::EffectHandle" 1018 1019AudioFlinger::EffectHandle::EffectHandle(const sp<EffectModule>& effect, 1020 const sp<AudioFlinger::Client>& client, 1021 const sp<IEffectClient>& effectClient, 1022 int32_t priority) 1023 : BnEffect(), 1024 mEffect(effect), mEffectClient(effectClient), mClient(client), mCblk(NULL), 1025 mPriority(priority), mHasControl(false), mEnabled(false), mDestroyed(false) 1026{ 1027 ALOGV("constructor %p", this); 1028 1029 if (client == 0) { 1030 return; 1031 } 1032 int bufOffset = ((sizeof(effect_param_cblk_t) - 1) / sizeof(int) + 1) * sizeof(int); 1033 mCblkMemory = client->heap()->allocate(EFFECT_PARAM_BUFFER_SIZE + bufOffset); 1034 if (mCblkMemory == 0 || 1035 (mCblk = static_cast<effect_param_cblk_t *>(mCblkMemory->pointer())) == NULL) { 1036 ALOGE("not enough memory for Effect size=%u", EFFECT_PARAM_BUFFER_SIZE + 1037 sizeof(effect_param_cblk_t)); 1038 mCblkMemory.clear(); 1039 return; 1040 } 1041 new(mCblk) effect_param_cblk_t(); 1042 mBuffer = (uint8_t *)mCblk + bufOffset; 1043} 1044 1045AudioFlinger::EffectHandle::~EffectHandle() 1046{ 1047 ALOGV("Destructor %p", this); 1048 1049 if (mEffect == 0) { 1050 mDestroyed = true; 1051 return; 1052 } 1053 mEffect->lock(); 1054 mDestroyed = true; 1055 mEffect->unlock(); 1056 disconnect(false); 1057} 1058 1059status_t AudioFlinger::EffectHandle::initCheck() 1060{ 1061 return mClient == 0 || mCblkMemory != 0 ? OK : NO_MEMORY; 1062} 1063 1064status_t AudioFlinger::EffectHandle::enable() 1065{ 1066 ALOGV("enable %p", this); 1067 if (!mHasControl) { 1068 return INVALID_OPERATION; 1069 } 1070 if (mEffect == 0) { 1071 return DEAD_OBJECT; 1072 } 1073 1074 if (mEnabled) { 1075 return NO_ERROR; 1076 } 1077 1078 mEnabled = true; 1079 1080 sp<ThreadBase> thread = mEffect->thread().promote(); 1081 if (thread != 0) { 1082 thread->checkSuspendOnEffectEnabled(mEffect, true, mEffect->sessionId()); 1083 } 1084 1085 // checkSuspendOnEffectEnabled() can suspend this same effect when enabled 1086 if (mEffect->suspended()) { 1087 return NO_ERROR; 1088 } 1089 1090 status_t status = mEffect->setEnabled(true); 1091 if (status != NO_ERROR) { 1092 if (thread != 0) { 1093 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 1094 } 1095 mEnabled = false; 1096 } else { 1097 if (thread != 0) { 1098 if (thread->type() == ThreadBase::OFFLOAD) { 1099 PlaybackThread *t = (PlaybackThread *)thread.get(); 1100 Mutex::Autolock _l(t->mLock); 1101 t->broadcast_l(); 1102 } 1103 if (!mEffect->isOffloadable()) { 1104 if (thread->type() == ThreadBase::OFFLOAD) { 1105 PlaybackThread *t = (PlaybackThread *)thread.get(); 1106 t->invalidateTracks(AUDIO_STREAM_MUSIC); 1107 } 1108 if (mEffect->sessionId() == AUDIO_SESSION_OUTPUT_MIX) { 1109 thread->mAudioFlinger->onNonOffloadableGlobalEffectEnable(); 1110 } 1111 } 1112 } 1113 } 1114 return status; 1115} 1116 1117status_t AudioFlinger::EffectHandle::disable() 1118{ 1119 ALOGV("disable %p", this); 1120 if (!mHasControl) { 1121 return INVALID_OPERATION; 1122 } 1123 if (mEffect == 0) { 1124 return DEAD_OBJECT; 1125 } 1126 1127 if (!mEnabled) { 1128 return NO_ERROR; 1129 } 1130 mEnabled = false; 1131 1132 if (mEffect->suspended()) { 1133 return NO_ERROR; 1134 } 1135 1136 status_t status = mEffect->setEnabled(false); 1137 1138 sp<ThreadBase> thread = mEffect->thread().promote(); 1139 if (thread != 0) { 1140 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 1141 if (thread->type() == ThreadBase::OFFLOAD) { 1142 PlaybackThread *t = (PlaybackThread *)thread.get(); 1143 Mutex::Autolock _l(t->mLock); 1144 t->broadcast_l(); 1145 } 1146 } 1147 1148 return status; 1149} 1150 1151void AudioFlinger::EffectHandle::disconnect() 1152{ 1153 disconnect(true); 1154} 1155 1156void AudioFlinger::EffectHandle::disconnect(bool unpinIfLast) 1157{ 1158 ALOGV("disconnect(%s)", unpinIfLast ? "true" : "false"); 1159 if (mEffect == 0) { 1160 return; 1161 } 1162 // restore suspended effects if the disconnected handle was enabled and the last one. 1163 if ((mEffect->disconnect(this, unpinIfLast) == 0) && mEnabled) { 1164 sp<ThreadBase> thread = mEffect->thread().promote(); 1165 if (thread != 0) { 1166 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 1167 } 1168 } 1169 1170 // release sp on module => module destructor can be called now 1171 mEffect.clear(); 1172 if (mClient != 0) { 1173 if (mCblk != NULL) { 1174 // unlike ~TrackBase(), mCblk is never a local new, so don't delete 1175 mCblk->~effect_param_cblk_t(); // destroy our shared-structure. 1176 } 1177 mCblkMemory.clear(); // free the shared memory before releasing the heap it belongs to 1178 // Client destructor must run with AudioFlinger client mutex locked 1179 Mutex::Autolock _l(mClient->audioFlinger()->mClientLock); 1180 mClient.clear(); 1181 } 1182} 1183 1184status_t AudioFlinger::EffectHandle::command(uint32_t cmdCode, 1185 uint32_t cmdSize, 1186 void *pCmdData, 1187 uint32_t *replySize, 1188 void *pReplyData) 1189{ 1190 ALOGVV("command(), cmdCode: %d, mHasControl: %d, mEffect: %p", 1191 cmdCode, mHasControl, (mEffect == 0) ? 0 : mEffect.get()); 1192 1193 // only get parameter command is permitted for applications not controlling the effect 1194 if (!mHasControl && cmdCode != EFFECT_CMD_GET_PARAM) { 1195 return INVALID_OPERATION; 1196 } 1197 if (mEffect == 0) { 1198 return DEAD_OBJECT; 1199 } 1200 if (mClient == 0) { 1201 return INVALID_OPERATION; 1202 } 1203 1204 // handle commands that are not forwarded transparently to effect engine 1205 if (cmdCode == EFFECT_CMD_SET_PARAM_COMMIT) { 1206 // No need to trylock() here as this function is executed in the binder thread serving a 1207 // particular client process: no risk to block the whole media server process or mixer 1208 // threads if we are stuck here 1209 Mutex::Autolock _l(mCblk->lock); 1210 if (mCblk->clientIndex > EFFECT_PARAM_BUFFER_SIZE || 1211 mCblk->serverIndex > EFFECT_PARAM_BUFFER_SIZE) { 1212 mCblk->serverIndex = 0; 1213 mCblk->clientIndex = 0; 1214 return BAD_VALUE; 1215 } 1216 status_t status = NO_ERROR; 1217 while (mCblk->serverIndex < mCblk->clientIndex) { 1218 int reply; 1219 uint32_t rsize = sizeof(int); 1220 int *p = (int *)(mBuffer + mCblk->serverIndex); 1221 int size = *p++; 1222 if (((uint8_t *)p + size) > mBuffer + mCblk->clientIndex) { 1223 ALOGW("command(): invalid parameter block size"); 1224 break; 1225 } 1226 effect_param_t *param = (effect_param_t *)p; 1227 if (param->psize == 0 || param->vsize == 0) { 1228 ALOGW("command(): null parameter or value size"); 1229 mCblk->serverIndex += size; 1230 continue; 1231 } 1232 uint32_t psize = sizeof(effect_param_t) + 1233 ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) + 1234 param->vsize; 1235 status_t ret = mEffect->command(EFFECT_CMD_SET_PARAM, 1236 psize, 1237 p, 1238 &rsize, 1239 &reply); 1240 // stop at first error encountered 1241 if (ret != NO_ERROR) { 1242 status = ret; 1243 *(int *)pReplyData = reply; 1244 break; 1245 } else if (reply != NO_ERROR) { 1246 *(int *)pReplyData = reply; 1247 break; 1248 } 1249 mCblk->serverIndex += size; 1250 } 1251 mCblk->serverIndex = 0; 1252 mCblk->clientIndex = 0; 1253 return status; 1254 } else if (cmdCode == EFFECT_CMD_ENABLE) { 1255 *(int *)pReplyData = NO_ERROR; 1256 return enable(); 1257 } else if (cmdCode == EFFECT_CMD_DISABLE) { 1258 *(int *)pReplyData = NO_ERROR; 1259 return disable(); 1260 } 1261 1262 return mEffect->command(cmdCode, cmdSize, pCmdData, replySize, pReplyData); 1263} 1264 1265void AudioFlinger::EffectHandle::setControl(bool hasControl, bool signal, bool enabled) 1266{ 1267 ALOGV("setControl %p control %d", this, hasControl); 1268 1269 mHasControl = hasControl; 1270 mEnabled = enabled; 1271 1272 if (signal && mEffectClient != 0) { 1273 mEffectClient->controlStatusChanged(hasControl); 1274 } 1275} 1276 1277void AudioFlinger::EffectHandle::commandExecuted(uint32_t cmdCode, 1278 uint32_t cmdSize, 1279 void *pCmdData, 1280 uint32_t replySize, 1281 void *pReplyData) 1282{ 1283 if (mEffectClient != 0) { 1284 mEffectClient->commandExecuted(cmdCode, cmdSize, pCmdData, replySize, pReplyData); 1285 } 1286} 1287 1288 1289 1290void AudioFlinger::EffectHandle::setEnabled(bool enabled) 1291{ 1292 if (mEffectClient != 0) { 1293 mEffectClient->enableStatusChanged(enabled); 1294 } 1295} 1296 1297status_t AudioFlinger::EffectHandle::onTransact( 1298 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1299{ 1300 return BnEffect::onTransact(code, data, reply, flags); 1301} 1302 1303 1304void AudioFlinger::EffectHandle::dumpToBuffer(char* buffer, size_t size) 1305{ 1306 bool locked = mCblk != NULL && AudioFlinger::dumpTryLock(mCblk->lock); 1307 1308 snprintf(buffer, size, "\t\t\t%5d %5d %3s %3s %5u %5u\n", 1309 (mClient == 0) ? getpid_cached : mClient->pid(), 1310 mPriority, 1311 mHasControl ? "yes" : "no", 1312 locked ? "yes" : "no", 1313 mCblk ? mCblk->clientIndex : 0, 1314 mCblk ? mCblk->serverIndex : 0 1315 ); 1316 1317 if (locked) { 1318 mCblk->lock.unlock(); 1319 } 1320} 1321 1322#undef LOG_TAG 1323#define LOG_TAG "AudioFlinger::EffectChain" 1324 1325AudioFlinger::EffectChain::EffectChain(ThreadBase *thread, 1326 int sessionId) 1327 : mThread(thread), mSessionId(sessionId), mActiveTrackCnt(0), mTrackCnt(0), mTailBufferCount(0), 1328 mOwnInBuffer(false), mVolumeCtrlIdx(-1), mLeftVolume(UINT_MAX), mRightVolume(UINT_MAX), 1329 mNewLeftVolume(UINT_MAX), mNewRightVolume(UINT_MAX) 1330{ 1331 mStrategy = AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC); 1332 if (thread == NULL) { 1333 return; 1334 } 1335 mMaxTailBuffers = ((kProcessTailDurationMs * thread->sampleRate()) / 1000) / 1336 thread->frameCount(); 1337} 1338 1339AudioFlinger::EffectChain::~EffectChain() 1340{ 1341 if (mOwnInBuffer) { 1342 delete mInBuffer; 1343 } 1344 1345} 1346 1347// getEffectFromDesc_l() must be called with ThreadBase::mLock held 1348sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromDesc_l( 1349 effect_descriptor_t *descriptor) 1350{ 1351 size_t size = mEffects.size(); 1352 1353 for (size_t i = 0; i < size; i++) { 1354 if (memcmp(&mEffects[i]->desc().uuid, &descriptor->uuid, sizeof(effect_uuid_t)) == 0) { 1355 return mEffects[i]; 1356 } 1357 } 1358 return 0; 1359} 1360 1361// getEffectFromId_l() must be called with ThreadBase::mLock held 1362sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromId_l(int id) 1363{ 1364 size_t size = mEffects.size(); 1365 1366 for (size_t i = 0; i < size; i++) { 1367 // by convention, return first effect if id provided is 0 (0 is never a valid id) 1368 if (id == 0 || mEffects[i]->id() == id) { 1369 return mEffects[i]; 1370 } 1371 } 1372 return 0; 1373} 1374 1375// getEffectFromType_l() must be called with ThreadBase::mLock held 1376sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromType_l( 1377 const effect_uuid_t *type) 1378{ 1379 size_t size = mEffects.size(); 1380 1381 for (size_t i = 0; i < size; i++) { 1382 if (memcmp(&mEffects[i]->desc().type, type, sizeof(effect_uuid_t)) == 0) { 1383 return mEffects[i]; 1384 } 1385 } 1386 return 0; 1387} 1388 1389void AudioFlinger::EffectChain::clearInputBuffer() 1390{ 1391 Mutex::Autolock _l(mLock); 1392 sp<ThreadBase> thread = mThread.promote(); 1393 if (thread == 0) { 1394 ALOGW("clearInputBuffer(): cannot promote mixer thread"); 1395 return; 1396 } 1397 clearInputBuffer_l(thread); 1398} 1399 1400// Must be called with EffectChain::mLock locked 1401void AudioFlinger::EffectChain::clearInputBuffer_l(sp<ThreadBase> thread) 1402{ 1403 // TODO: This will change in the future, depending on multichannel 1404 // and sample format changes for effects. 1405 // Currently effects processing is only available for stereo, AUDIO_FORMAT_PCM_16_BIT 1406 // (4 bytes frame size) 1407 const size_t frameSize = 1408 audio_bytes_per_sample(AUDIO_FORMAT_PCM_16_BIT) * min(FCC_2, thread->channelCount()); 1409 memset(mInBuffer, 0, thread->frameCount() * frameSize); 1410} 1411 1412// Must be called with EffectChain::mLock locked 1413void AudioFlinger::EffectChain::process_l() 1414{ 1415 sp<ThreadBase> thread = mThread.promote(); 1416 if (thread == 0) { 1417 ALOGW("process_l(): cannot promote mixer thread"); 1418 return; 1419 } 1420 bool isGlobalSession = (mSessionId == AUDIO_SESSION_OUTPUT_MIX) || 1421 (mSessionId == AUDIO_SESSION_OUTPUT_STAGE); 1422 // never process effects when: 1423 // - on an OFFLOAD thread 1424 // - no more tracks are on the session and the effect tail has been rendered 1425 bool doProcess = (thread->type() != ThreadBase::OFFLOAD); 1426 if (!isGlobalSession) { 1427 bool tracksOnSession = (trackCnt() != 0); 1428 1429 if (!tracksOnSession && mTailBufferCount == 0) { 1430 doProcess = false; 1431 } 1432 1433 if (activeTrackCnt() == 0) { 1434 // if no track is active and the effect tail has not been rendered, 1435 // the input buffer must be cleared here as the mixer process will not do it 1436 if (tracksOnSession || mTailBufferCount > 0) { 1437 clearInputBuffer_l(thread); 1438 if (mTailBufferCount > 0) { 1439 mTailBufferCount--; 1440 } 1441 } 1442 } 1443 } 1444 1445 size_t size = mEffects.size(); 1446 if (doProcess) { 1447 for (size_t i = 0; i < size; i++) { 1448 mEffects[i]->process(); 1449 } 1450 } 1451 for (size_t i = 0; i < size; i++) { 1452 mEffects[i]->updateState(); 1453 } 1454} 1455 1456// addEffect_l() must be called with PlaybackThread::mLock held 1457status_t AudioFlinger::EffectChain::addEffect_l(const sp<EffectModule>& effect) 1458{ 1459 effect_descriptor_t desc = effect->desc(); 1460 uint32_t insertPref = desc.flags & EFFECT_FLAG_INSERT_MASK; 1461 1462 Mutex::Autolock _l(mLock); 1463 effect->setChain(this); 1464 sp<ThreadBase> thread = mThread.promote(); 1465 if (thread == 0) { 1466 return NO_INIT; 1467 } 1468 effect->setThread(thread); 1469 1470 if ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 1471 // Auxiliary effects are inserted at the beginning of mEffects vector as 1472 // they are processed first and accumulated in chain input buffer 1473 mEffects.insertAt(effect, 0); 1474 1475 // the input buffer for auxiliary effect contains mono samples in 1476 // 32 bit format. This is to avoid saturation in AudoMixer 1477 // accumulation stage. Saturation is done in EffectModule::process() before 1478 // calling the process in effect engine 1479 size_t numSamples = thread->frameCount(); 1480 int32_t *buffer = new int32_t[numSamples]; 1481 memset(buffer, 0, numSamples * sizeof(int32_t)); 1482 effect->setInBuffer((int16_t *)buffer); 1483 // auxiliary effects output samples to chain input buffer for further processing 1484 // by insert effects 1485 effect->setOutBuffer(mInBuffer); 1486 } else { 1487 // Insert effects are inserted at the end of mEffects vector as they are processed 1488 // after track and auxiliary effects. 1489 // Insert effect order as a function of indicated preference: 1490 // if EFFECT_FLAG_INSERT_EXCLUSIVE, insert in first position or reject if 1491 // another effect is present 1492 // else if EFFECT_FLAG_INSERT_FIRST, insert in first position or after the 1493 // last effect claiming first position 1494 // else if EFFECT_FLAG_INSERT_LAST, insert in last position or before the 1495 // first effect claiming last position 1496 // else if EFFECT_FLAG_INSERT_ANY insert after first or before last 1497 // Reject insertion if an effect with EFFECT_FLAG_INSERT_EXCLUSIVE is 1498 // already present 1499 1500 size_t size = mEffects.size(); 1501 size_t idx_insert = size; 1502 ssize_t idx_insert_first = -1; 1503 ssize_t idx_insert_last = -1; 1504 1505 for (size_t i = 0; i < size; i++) { 1506 effect_descriptor_t d = mEffects[i]->desc(); 1507 uint32_t iMode = d.flags & EFFECT_FLAG_TYPE_MASK; 1508 uint32_t iPref = d.flags & EFFECT_FLAG_INSERT_MASK; 1509 if (iMode == EFFECT_FLAG_TYPE_INSERT) { 1510 // check invalid effect chaining combinations 1511 if (insertPref == EFFECT_FLAG_INSERT_EXCLUSIVE || 1512 iPref == EFFECT_FLAG_INSERT_EXCLUSIVE) { 1513 ALOGW("addEffect_l() could not insert effect %s: exclusive conflict with %s", 1514 desc.name, d.name); 1515 return INVALID_OPERATION; 1516 } 1517 // remember position of first insert effect and by default 1518 // select this as insert position for new effect 1519 if (idx_insert == size) { 1520 idx_insert = i; 1521 } 1522 // remember position of last insert effect claiming 1523 // first position 1524 if (iPref == EFFECT_FLAG_INSERT_FIRST) { 1525 idx_insert_first = i; 1526 } 1527 // remember position of first insert effect claiming 1528 // last position 1529 if (iPref == EFFECT_FLAG_INSERT_LAST && 1530 idx_insert_last == -1) { 1531 idx_insert_last = i; 1532 } 1533 } 1534 } 1535 1536 // modify idx_insert from first position if needed 1537 if (insertPref == EFFECT_FLAG_INSERT_LAST) { 1538 if (idx_insert_last != -1) { 1539 idx_insert = idx_insert_last; 1540 } else { 1541 idx_insert = size; 1542 } 1543 } else { 1544 if (idx_insert_first != -1) { 1545 idx_insert = idx_insert_first + 1; 1546 } 1547 } 1548 1549 // always read samples from chain input buffer 1550 effect->setInBuffer(mInBuffer); 1551 1552 // if last effect in the chain, output samples to chain 1553 // output buffer, otherwise to chain input buffer 1554 if (idx_insert == size) { 1555 if (idx_insert != 0) { 1556 mEffects[idx_insert-1]->setOutBuffer(mInBuffer); 1557 mEffects[idx_insert-1]->configure(); 1558 } 1559 effect->setOutBuffer(mOutBuffer); 1560 } else { 1561 effect->setOutBuffer(mInBuffer); 1562 } 1563 mEffects.insertAt(effect, idx_insert); 1564 1565 ALOGV("addEffect_l() effect %p, added in chain %p at rank %d", effect.get(), this, 1566 idx_insert); 1567 } 1568 effect->configure(); 1569 return NO_ERROR; 1570} 1571 1572// removeEffect_l() must be called with PlaybackThread::mLock held 1573size_t AudioFlinger::EffectChain::removeEffect_l(const sp<EffectModule>& effect) 1574{ 1575 Mutex::Autolock _l(mLock); 1576 size_t size = mEffects.size(); 1577 uint32_t type = effect->desc().flags & EFFECT_FLAG_TYPE_MASK; 1578 1579 for (size_t i = 0; i < size; i++) { 1580 if (effect == mEffects[i]) { 1581 // calling stop here will remove pre-processing effect from the audio HAL. 1582 // This is safe as we hold the EffectChain mutex which guarantees that we are not in 1583 // the middle of a read from audio HAL 1584 if (mEffects[i]->state() == EffectModule::ACTIVE || 1585 mEffects[i]->state() == EffectModule::STOPPING) { 1586 mEffects[i]->stop(); 1587 } 1588 if (type == EFFECT_FLAG_TYPE_AUXILIARY) { 1589 delete[] effect->inBuffer(); 1590 } else { 1591 if (i == size - 1 && i != 0) { 1592 mEffects[i - 1]->setOutBuffer(mOutBuffer); 1593 mEffects[i - 1]->configure(); 1594 } 1595 } 1596 mEffects.removeAt(i); 1597 ALOGV("removeEffect_l() effect %p, removed from chain %p at rank %d", effect.get(), 1598 this, i); 1599 break; 1600 } 1601 } 1602 1603 return mEffects.size(); 1604} 1605 1606// setDevice_l() must be called with PlaybackThread::mLock held 1607void AudioFlinger::EffectChain::setDevice_l(audio_devices_t device) 1608{ 1609 size_t size = mEffects.size(); 1610 for (size_t i = 0; i < size; i++) { 1611 mEffects[i]->setDevice(device); 1612 } 1613} 1614 1615// setMode_l() must be called with PlaybackThread::mLock held 1616void AudioFlinger::EffectChain::setMode_l(audio_mode_t mode) 1617{ 1618 size_t size = mEffects.size(); 1619 for (size_t i = 0; i < size; i++) { 1620 mEffects[i]->setMode(mode); 1621 } 1622} 1623 1624// setAudioSource_l() must be called with PlaybackThread::mLock held 1625void AudioFlinger::EffectChain::setAudioSource_l(audio_source_t source) 1626{ 1627 size_t size = mEffects.size(); 1628 for (size_t i = 0; i < size; i++) { 1629 mEffects[i]->setAudioSource(source); 1630 } 1631} 1632 1633// setVolume_l() must be called with PlaybackThread::mLock held 1634bool AudioFlinger::EffectChain::setVolume_l(uint32_t *left, uint32_t *right) 1635{ 1636 uint32_t newLeft = *left; 1637 uint32_t newRight = *right; 1638 bool hasControl = false; 1639 int ctrlIdx = -1; 1640 size_t size = mEffects.size(); 1641 1642 // first update volume controller 1643 for (size_t i = size; i > 0; i--) { 1644 if (mEffects[i - 1]->isProcessEnabled() && 1645 (mEffects[i - 1]->desc().flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL) { 1646 ctrlIdx = i - 1; 1647 hasControl = true; 1648 break; 1649 } 1650 } 1651 1652 if (ctrlIdx == mVolumeCtrlIdx && *left == mLeftVolume && *right == mRightVolume) { 1653 if (hasControl) { 1654 *left = mNewLeftVolume; 1655 *right = mNewRightVolume; 1656 } 1657 return hasControl; 1658 } 1659 1660 mVolumeCtrlIdx = ctrlIdx; 1661 mLeftVolume = newLeft; 1662 mRightVolume = newRight; 1663 1664 // second get volume update from volume controller 1665 if (ctrlIdx >= 0) { 1666 mEffects[ctrlIdx]->setVolume(&newLeft, &newRight, true); 1667 mNewLeftVolume = newLeft; 1668 mNewRightVolume = newRight; 1669 } 1670 // then indicate volume to all other effects in chain. 1671 // Pass altered volume to effects before volume controller 1672 // and requested volume to effects after controller 1673 uint32_t lVol = newLeft; 1674 uint32_t rVol = newRight; 1675 1676 for (size_t i = 0; i < size; i++) { 1677 if ((int)i == ctrlIdx) { 1678 continue; 1679 } 1680 // this also works for ctrlIdx == -1 when there is no volume controller 1681 if ((int)i > ctrlIdx) { 1682 lVol = *left; 1683 rVol = *right; 1684 } 1685 mEffects[i]->setVolume(&lVol, &rVol, false); 1686 } 1687 *left = newLeft; 1688 *right = newRight; 1689 1690 return hasControl; 1691} 1692 1693void AudioFlinger::EffectChain::dump(int fd, const Vector<String16>& args) 1694{ 1695 const size_t SIZE = 256; 1696 char buffer[SIZE]; 1697 String8 result; 1698 1699 size_t numEffects = mEffects.size(); 1700 snprintf(buffer, SIZE, " %d effects for session %d\n", numEffects, mSessionId); 1701 result.append(buffer); 1702 1703 if (numEffects) { 1704 bool locked = AudioFlinger::dumpTryLock(mLock); 1705 // failed to lock - AudioFlinger is probably deadlocked 1706 if (!locked) { 1707 result.append("\tCould not lock mutex:\n"); 1708 } 1709 1710 result.append("\tIn buffer Out buffer Active tracks:\n"); 1711 snprintf(buffer, SIZE, "\t%p %p %d\n", 1712 mInBuffer, 1713 mOutBuffer, 1714 mActiveTrackCnt); 1715 result.append(buffer); 1716 write(fd, result.string(), result.size()); 1717 1718 for (size_t i = 0; i < numEffects; ++i) { 1719 sp<EffectModule> effect = mEffects[i]; 1720 if (effect != 0) { 1721 effect->dump(fd, args); 1722 } 1723 } 1724 1725 if (locked) { 1726 mLock.unlock(); 1727 } 1728 } 1729} 1730 1731// must be called with ThreadBase::mLock held 1732void AudioFlinger::EffectChain::setEffectSuspended_l( 1733 const effect_uuid_t *type, bool suspend) 1734{ 1735 sp<SuspendedEffectDesc> desc; 1736 // use effect type UUID timelow as key as there is no real risk of identical 1737 // timeLow fields among effect type UUIDs. 1738 ssize_t index = mSuspendedEffects.indexOfKey(type->timeLow); 1739 if (suspend) { 1740 if (index >= 0) { 1741 desc = mSuspendedEffects.valueAt(index); 1742 } else { 1743 desc = new SuspendedEffectDesc(); 1744 desc->mType = *type; 1745 mSuspendedEffects.add(type->timeLow, desc); 1746 ALOGV("setEffectSuspended_l() add entry for %08x", type->timeLow); 1747 } 1748 if (desc->mRefCount++ == 0) { 1749 sp<EffectModule> effect = getEffectIfEnabled(type); 1750 if (effect != 0) { 1751 desc->mEffect = effect; 1752 effect->setSuspended(true); 1753 effect->setEnabled(false); 1754 } 1755 } 1756 } else { 1757 if (index < 0) { 1758 return; 1759 } 1760 desc = mSuspendedEffects.valueAt(index); 1761 if (desc->mRefCount <= 0) { 1762 ALOGW("setEffectSuspended_l() restore refcount should not be 0 %d", desc->mRefCount); 1763 desc->mRefCount = 1; 1764 } 1765 if (--desc->mRefCount == 0) { 1766 ALOGV("setEffectSuspended_l() remove entry for %08x", mSuspendedEffects.keyAt(index)); 1767 if (desc->mEffect != 0) { 1768 sp<EffectModule> effect = desc->mEffect.promote(); 1769 if (effect != 0) { 1770 effect->setSuspended(false); 1771 effect->lock(); 1772 EffectHandle *handle = effect->controlHandle_l(); 1773 if (handle != NULL && !handle->destroyed_l()) { 1774 effect->setEnabled_l(handle->enabled()); 1775 } 1776 effect->unlock(); 1777 } 1778 desc->mEffect.clear(); 1779 } 1780 mSuspendedEffects.removeItemsAt(index); 1781 } 1782 } 1783} 1784 1785// must be called with ThreadBase::mLock held 1786void AudioFlinger::EffectChain::setEffectSuspendedAll_l(bool suspend) 1787{ 1788 sp<SuspendedEffectDesc> desc; 1789 1790 ssize_t index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll); 1791 if (suspend) { 1792 if (index >= 0) { 1793 desc = mSuspendedEffects.valueAt(index); 1794 } else { 1795 desc = new SuspendedEffectDesc(); 1796 mSuspendedEffects.add((int)kKeyForSuspendAll, desc); 1797 ALOGV("setEffectSuspendedAll_l() add entry for 0"); 1798 } 1799 if (desc->mRefCount++ == 0) { 1800 Vector< sp<EffectModule> > effects; 1801 getSuspendEligibleEffects(effects); 1802 for (size_t i = 0; i < effects.size(); i++) { 1803 setEffectSuspended_l(&effects[i]->desc().type, true); 1804 } 1805 } 1806 } else { 1807 if (index < 0) { 1808 return; 1809 } 1810 desc = mSuspendedEffects.valueAt(index); 1811 if (desc->mRefCount <= 0) { 1812 ALOGW("setEffectSuspendedAll_l() restore refcount should not be 0 %d", desc->mRefCount); 1813 desc->mRefCount = 1; 1814 } 1815 if (--desc->mRefCount == 0) { 1816 Vector<const effect_uuid_t *> types; 1817 for (size_t i = 0; i < mSuspendedEffects.size(); i++) { 1818 if (mSuspendedEffects.keyAt(i) == (int)kKeyForSuspendAll) { 1819 continue; 1820 } 1821 types.add(&mSuspendedEffects.valueAt(i)->mType); 1822 } 1823 for (size_t i = 0; i < types.size(); i++) { 1824 setEffectSuspended_l(types[i], false); 1825 } 1826 ALOGV("setEffectSuspendedAll_l() remove entry for %08x", 1827 mSuspendedEffects.keyAt(index)); 1828 mSuspendedEffects.removeItem((int)kKeyForSuspendAll); 1829 } 1830 } 1831} 1832 1833 1834// The volume effect is used for automated tests only 1835#ifndef OPENSL_ES_H_ 1836static const effect_uuid_t SL_IID_VOLUME_ = { 0x09e8ede0, 0xddde, 0x11db, 0xb4f6, 1837 { 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } }; 1838const effect_uuid_t * const SL_IID_VOLUME = &SL_IID_VOLUME_; 1839#endif //OPENSL_ES_H_ 1840 1841bool AudioFlinger::EffectChain::isEffectEligibleForSuspend(const effect_descriptor_t& desc) 1842{ 1843 // auxiliary effects and visualizer are never suspended on output mix 1844 if ((mSessionId == AUDIO_SESSION_OUTPUT_MIX) && 1845 (((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) || 1846 (memcmp(&desc.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0) || 1847 (memcmp(&desc.type, SL_IID_VOLUME, sizeof(effect_uuid_t)) == 0))) { 1848 return false; 1849 } 1850 return true; 1851} 1852 1853void AudioFlinger::EffectChain::getSuspendEligibleEffects( 1854 Vector< sp<AudioFlinger::EffectModule> > &effects) 1855{ 1856 effects.clear(); 1857 for (size_t i = 0; i < mEffects.size(); i++) { 1858 if (isEffectEligibleForSuspend(mEffects[i]->desc())) { 1859 effects.add(mEffects[i]); 1860 } 1861 } 1862} 1863 1864sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectIfEnabled( 1865 const effect_uuid_t *type) 1866{ 1867 sp<EffectModule> effect = getEffectFromType_l(type); 1868 return effect != 0 && effect->isEnabled() ? effect : 0; 1869} 1870 1871void AudioFlinger::EffectChain::checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, 1872 bool enabled) 1873{ 1874 ssize_t index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow); 1875 if (enabled) { 1876 if (index < 0) { 1877 // if the effect is not suspend check if all effects are suspended 1878 index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll); 1879 if (index < 0) { 1880 return; 1881 } 1882 if (!isEffectEligibleForSuspend(effect->desc())) { 1883 return; 1884 } 1885 setEffectSuspended_l(&effect->desc().type, enabled); 1886 index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow); 1887 if (index < 0) { 1888 ALOGW("checkSuspendOnEffectEnabled() Fx should be suspended here!"); 1889 return; 1890 } 1891 } 1892 ALOGV("checkSuspendOnEffectEnabled() enable suspending fx %08x", 1893 effect->desc().type.timeLow); 1894 sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index); 1895 // if effect is requested to suspended but was not yet enabled, supend it now. 1896 if (desc->mEffect == 0) { 1897 desc->mEffect = effect; 1898 effect->setEnabled(false); 1899 effect->setSuspended(true); 1900 } 1901 } else { 1902 if (index < 0) { 1903 return; 1904 } 1905 ALOGV("checkSuspendOnEffectEnabled() disable restoring fx %08x", 1906 effect->desc().type.timeLow); 1907 sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index); 1908 desc->mEffect.clear(); 1909 effect->setSuspended(false); 1910 } 1911} 1912 1913bool AudioFlinger::EffectChain::isNonOffloadableEnabled() 1914{ 1915 Mutex::Autolock _l(mLock); 1916 size_t size = mEffects.size(); 1917 for (size_t i = 0; i < size; i++) { 1918 if (mEffects[i]->isEnabled() && !mEffects[i]->isOffloadable()) { 1919 return true; 1920 } 1921 } 1922 return false; 1923} 1924 1925void AudioFlinger::EffectChain::setThread(const sp<ThreadBase>& thread) 1926{ 1927 Mutex::Autolock _l(mLock); 1928 mThread = thread; 1929 for (size_t i = 0; i < mEffects.size(); i++) { 1930 mEffects[i]->setThread(thread); 1931 } 1932} 1933 1934}; // namespace android 1935