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 namespace android { 48 49 // ---------------------------------------------------------------------------- 50 // EffectModule implementation 51 // ---------------------------------------------------------------------------- 52 53 #undef LOG_TAG 54 #define LOG_TAG "AudioFlinger::EffectModule" 55 56 AudioFlinger::EffectModule::EffectModule(ThreadBase *thread, 57 const wp<AudioFlinger::EffectChain>& chain, 58 effect_descriptor_t *desc, 59 int id, 60 int sessionId) 61 : mPinned(sessionId > AUDIO_SESSION_OUTPUT_MIX), 62 mThread(thread), mChain(chain), mId(id), mSessionId(sessionId), 63 mDescriptor(*desc), 64 // mConfig is set by configure() and not used before then 65 mEffectInterface(NULL), 66 mStatus(NO_INIT), mState(IDLE), 67 // mMaxDisableWaitCnt is set by configure() and not used before then 68 // mDisableWaitCnt is set by process() and updateState() and not used before then 69 mSuspended(false) 70 { 71 ALOGV("Constructor %p", this); 72 int lStatus; 73 74 // create effect engine from effect factory 75 mStatus = EffectCreate(&desc->uuid, sessionId, thread->id(), &mEffectInterface); 76 77 if (mStatus != NO_ERROR) { 78 return; 79 } 80 lStatus = init(); 81 if (lStatus < 0) { 82 mStatus = lStatus; 83 goto Error; 84 } 85 86 ALOGV("Constructor success name %s, Interface %p", mDescriptor.name, mEffectInterface); 87 return; 88 Error: 89 EffectRelease(mEffectInterface); 90 mEffectInterface = NULL; 91 ALOGV("Constructor Error %d", mStatus); 92 } 93 94 AudioFlinger::EffectModule::~EffectModule() 95 { 96 ALOGV("Destructor %p", this); 97 if (mEffectInterface != NULL) { 98 remove_effect_from_hal_l(); 99 // release effect engine 100 EffectRelease(mEffectInterface); 101 } 102 } 103 104 status_t AudioFlinger::EffectModule::addHandle(EffectHandle *handle) 105 { 106 status_t status; 107 108 Mutex::Autolock _l(mLock); 109 int priority = handle->priority(); 110 size_t size = mHandles.size(); 111 EffectHandle *controlHandle = NULL; 112 size_t i; 113 for (i = 0; i < size; i++) { 114 EffectHandle *h = mHandles[i]; 115 if (h == NULL || h->destroyed_l()) { 116 continue; 117 } 118 // first non destroyed handle is considered in control 119 if (controlHandle == NULL) 120 controlHandle = h; 121 if (h->priority() <= priority) { 122 break; 123 } 124 } 125 // if inserted in first place, move effect control from previous owner to this handle 126 if (i == 0) { 127 bool enabled = false; 128 if (controlHandle != NULL) { 129 enabled = controlHandle->enabled(); 130 controlHandle->setControl(false/*hasControl*/, true /*signal*/, enabled /*enabled*/); 131 } 132 handle->setControl(true /*hasControl*/, false /*signal*/, enabled /*enabled*/); 133 status = NO_ERROR; 134 } else { 135 status = ALREADY_EXISTS; 136 } 137 ALOGV("addHandle() %p added handle %p in position %d", this, handle, i); 138 mHandles.insertAt(handle, i); 139 return status; 140 } 141 142 size_t AudioFlinger::EffectModule::removeHandle(EffectHandle *handle) 143 { 144 Mutex::Autolock _l(mLock); 145 size_t size = mHandles.size(); 146 size_t i; 147 for (i = 0; i < size; i++) { 148 if (mHandles[i] == handle) { 149 break; 150 } 151 } 152 if (i == size) { 153 return size; 154 } 155 ALOGV("removeHandle() %p removed handle %p in position %d", this, handle, i); 156 157 mHandles.removeAt(i); 158 // if removed from first place, move effect control from this handle to next in line 159 if (i == 0) { 160 EffectHandle *h = controlHandle_l(); 161 if (h != NULL) { 162 h->setControl(true /*hasControl*/, true /*signal*/ , handle->enabled() /*enabled*/); 163 } 164 } 165 166 // Prevent calls to process() and other functions on effect interface from now on. 167 // The effect engine will be released by the destructor when the last strong reference on 168 // this object is released which can happen after next process is called. 169 if (mHandles.size() == 0 && !mPinned) { 170 mState = DESTROYED; 171 } 172 173 return mHandles.size(); 174 } 175 176 // must be called with EffectModule::mLock held 177 AudioFlinger::EffectHandle *AudioFlinger::EffectModule::controlHandle_l() 178 { 179 // the first valid handle in the list has control over the module 180 for (size_t i = 0; i < mHandles.size(); i++) { 181 EffectHandle *h = mHandles[i]; 182 if (h != NULL && !h->destroyed_l()) { 183 return h; 184 } 185 } 186 187 return NULL; 188 } 189 190 size_t AudioFlinger::EffectModule::disconnect(EffectHandle *handle, bool unpinIfLast) 191 { 192 ALOGV("disconnect() %p handle %p", this, handle); 193 // keep a strong reference on this EffectModule to avoid calling the 194 // destructor before we exit 195 sp<EffectModule> keep(this); 196 { 197 sp<ThreadBase> thread = mThread.promote(); 198 if (thread != 0) { 199 thread->disconnectEffect(keep, handle, unpinIfLast); 200 } 201 } 202 return mHandles.size(); 203 } 204 205 void AudioFlinger::EffectModule::updateState() { 206 Mutex::Autolock _l(mLock); 207 208 switch (mState) { 209 case RESTART: 210 reset_l(); 211 // FALL THROUGH 212 213 case STARTING: 214 // clear auxiliary effect input buffer for next accumulation 215 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 216 memset(mConfig.inputCfg.buffer.raw, 217 0, 218 mConfig.inputCfg.buffer.frameCount*sizeof(int32_t)); 219 } 220 if (start_l() == NO_ERROR) { 221 mState = ACTIVE; 222 } else { 223 mState = IDLE; 224 } 225 break; 226 case STOPPING: 227 if (stop_l() == NO_ERROR) { 228 mDisableWaitCnt = mMaxDisableWaitCnt; 229 } else { 230 mDisableWaitCnt = 1; // will cause immediate transition to IDLE 231 } 232 mState = STOPPED; 233 break; 234 case STOPPED: 235 // mDisableWaitCnt is forced to 1 by process() when the engine indicates the end of the 236 // turn off sequence. 237 if (--mDisableWaitCnt == 0) { 238 reset_l(); 239 mState = IDLE; 240 } 241 break; 242 default: //IDLE , ACTIVE, DESTROYED 243 break; 244 } 245 } 246 247 void AudioFlinger::EffectModule::process() 248 { 249 Mutex::Autolock _l(mLock); 250 251 if (mState == DESTROYED || mEffectInterface == NULL || 252 mConfig.inputCfg.buffer.raw == NULL || 253 mConfig.outputCfg.buffer.raw == NULL) { 254 return; 255 } 256 257 if (isProcessEnabled()) { 258 // do 32 bit to 16 bit conversion for auxiliary effect input buffer 259 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 260 ditherAndClamp(mConfig.inputCfg.buffer.s32, 261 mConfig.inputCfg.buffer.s32, 262 mConfig.inputCfg.buffer.frameCount/2); 263 } 264 265 // do the actual processing in the effect engine 266 int ret = (*mEffectInterface)->process(mEffectInterface, 267 &mConfig.inputCfg.buffer, 268 &mConfig.outputCfg.buffer); 269 270 // force transition to IDLE state when engine is ready 271 if (mState == STOPPED && ret == -ENODATA) { 272 mDisableWaitCnt = 1; 273 } 274 275 // clear auxiliary effect input buffer for next accumulation 276 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 277 memset(mConfig.inputCfg.buffer.raw, 0, 278 mConfig.inputCfg.buffer.frameCount*sizeof(int32_t)); 279 } 280 } else if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_INSERT && 281 mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) { 282 // If an insert effect is idle and input buffer is different from output buffer, 283 // accumulate input onto output 284 sp<EffectChain> chain = mChain.promote(); 285 if (chain != 0 && chain->activeTrackCnt() != 0) { 286 size_t frameCnt = mConfig.inputCfg.buffer.frameCount * 2; //always stereo here 287 int16_t *in = mConfig.inputCfg.buffer.s16; 288 int16_t *out = mConfig.outputCfg.buffer.s16; 289 for (size_t i = 0; i < frameCnt; i++) { 290 out[i] = clamp16((int32_t)out[i] + (int32_t)in[i]); 291 } 292 } 293 } 294 } 295 296 void AudioFlinger::EffectModule::reset_l() 297 { 298 if (mStatus != NO_ERROR || mEffectInterface == NULL) { 299 return; 300 } 301 (*mEffectInterface)->command(mEffectInterface, EFFECT_CMD_RESET, 0, NULL, 0, NULL); 302 } 303 304 status_t AudioFlinger::EffectModule::configure() 305 { 306 status_t status; 307 sp<ThreadBase> thread; 308 uint32_t size; 309 audio_channel_mask_t channelMask; 310 311 if (mEffectInterface == NULL) { 312 status = NO_INIT; 313 goto exit; 314 } 315 316 thread = mThread.promote(); 317 if (thread == 0) { 318 status = DEAD_OBJECT; 319 goto exit; 320 } 321 322 // TODO: handle configuration of effects replacing track process 323 channelMask = thread->channelMask(); 324 325 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 326 mConfig.inputCfg.channels = AUDIO_CHANNEL_OUT_MONO; 327 } else { 328 mConfig.inputCfg.channels = channelMask; 329 } 330 mConfig.outputCfg.channels = channelMask; 331 mConfig.inputCfg.format = AUDIO_FORMAT_PCM_16_BIT; 332 mConfig.outputCfg.format = AUDIO_FORMAT_PCM_16_BIT; 333 mConfig.inputCfg.samplingRate = thread->sampleRate(); 334 mConfig.outputCfg.samplingRate = mConfig.inputCfg.samplingRate; 335 mConfig.inputCfg.bufferProvider.cookie = NULL; 336 mConfig.inputCfg.bufferProvider.getBuffer = NULL; 337 mConfig.inputCfg.bufferProvider.releaseBuffer = NULL; 338 mConfig.outputCfg.bufferProvider.cookie = NULL; 339 mConfig.outputCfg.bufferProvider.getBuffer = NULL; 340 mConfig.outputCfg.bufferProvider.releaseBuffer = NULL; 341 mConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ; 342 // Insert effect: 343 // - in session AUDIO_SESSION_OUTPUT_MIX or AUDIO_SESSION_OUTPUT_STAGE, 344 // always overwrites output buffer: input buffer == output buffer 345 // - in other sessions: 346 // last effect in the chain accumulates in output buffer: input buffer != output buffer 347 // other effect: overwrites output buffer: input buffer == output buffer 348 // Auxiliary effect: 349 // accumulates in output buffer: input buffer != output buffer 350 // Therefore: accumulate <=> input buffer != output buffer 351 if (mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) { 352 mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_ACCUMULATE; 353 } else { 354 mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_WRITE; 355 } 356 mConfig.inputCfg.mask = EFFECT_CONFIG_ALL; 357 mConfig.outputCfg.mask = EFFECT_CONFIG_ALL; 358 mConfig.inputCfg.buffer.frameCount = thread->frameCount(); 359 mConfig.outputCfg.buffer.frameCount = mConfig.inputCfg.buffer.frameCount; 360 361 ALOGV("configure() %p thread %p buffer %p framecount %d", 362 this, thread.get(), mConfig.inputCfg.buffer.raw, mConfig.inputCfg.buffer.frameCount); 363 364 status_t cmdStatus; 365 size = sizeof(int); 366 status = (*mEffectInterface)->command(mEffectInterface, 367 EFFECT_CMD_SET_CONFIG, 368 sizeof(effect_config_t), 369 &mConfig, 370 &size, 371 &cmdStatus); 372 if (status == 0) { 373 status = cmdStatus; 374 } 375 376 if (status == 0 && 377 (memcmp(&mDescriptor.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0)) { 378 uint32_t buf32[sizeof(effect_param_t) / sizeof(uint32_t) + 2]; 379 effect_param_t *p = (effect_param_t *)buf32; 380 381 p->psize = sizeof(uint32_t); 382 p->vsize = sizeof(uint32_t); 383 size = sizeof(int); 384 *(int32_t *)p->data = VISUALIZER_PARAM_LATENCY; 385 386 uint32_t latency = 0; 387 PlaybackThread *pbt = thread->mAudioFlinger->checkPlaybackThread_l(thread->mId); 388 if (pbt != NULL) { 389 latency = pbt->latency_l(); 390 } 391 392 *((int32_t *)p->data + 1)= latency; 393 (*mEffectInterface)->command(mEffectInterface, 394 EFFECT_CMD_SET_PARAM, 395 sizeof(effect_param_t) + 8, 396 &buf32, 397 &size, 398 &cmdStatus); 399 } 400 401 mMaxDisableWaitCnt = (MAX_DISABLE_TIME_MS * mConfig.outputCfg.samplingRate) / 402 (1000 * mConfig.outputCfg.buffer.frameCount); 403 404 exit: 405 mStatus = status; 406 return status; 407 } 408 409 status_t AudioFlinger::EffectModule::init() 410 { 411 Mutex::Autolock _l(mLock); 412 if (mEffectInterface == NULL) { 413 return NO_INIT; 414 } 415 status_t cmdStatus; 416 uint32_t size = sizeof(status_t); 417 status_t status = (*mEffectInterface)->command(mEffectInterface, 418 EFFECT_CMD_INIT, 419 0, 420 NULL, 421 &size, 422 &cmdStatus); 423 if (status == 0) { 424 status = cmdStatus; 425 } 426 return status; 427 } 428 429 status_t AudioFlinger::EffectModule::start() 430 { 431 Mutex::Autolock _l(mLock); 432 return start_l(); 433 } 434 435 status_t AudioFlinger::EffectModule::start_l() 436 { 437 if (mEffectInterface == NULL) { 438 return NO_INIT; 439 } 440 if (mStatus != NO_ERROR) { 441 return mStatus; 442 } 443 status_t cmdStatus; 444 uint32_t size = sizeof(status_t); 445 status_t status = (*mEffectInterface)->command(mEffectInterface, 446 EFFECT_CMD_ENABLE, 447 0, 448 NULL, 449 &size, 450 &cmdStatus); 451 if (status == 0) { 452 status = cmdStatus; 453 } 454 if (status == 0 && 455 ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 456 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC)) { 457 sp<ThreadBase> thread = mThread.promote(); 458 if (thread != 0) { 459 audio_stream_t *stream = thread->stream(); 460 if (stream != NULL) { 461 stream->add_audio_effect(stream, mEffectInterface); 462 } 463 } 464 } 465 return status; 466 } 467 468 status_t AudioFlinger::EffectModule::stop() 469 { 470 Mutex::Autolock _l(mLock); 471 return stop_l(); 472 } 473 474 status_t AudioFlinger::EffectModule::stop_l() 475 { 476 if (mEffectInterface == NULL) { 477 return NO_INIT; 478 } 479 if (mStatus != NO_ERROR) { 480 return mStatus; 481 } 482 status_t cmdStatus = NO_ERROR; 483 uint32_t size = sizeof(status_t); 484 status_t status = (*mEffectInterface)->command(mEffectInterface, 485 EFFECT_CMD_DISABLE, 486 0, 487 NULL, 488 &size, 489 &cmdStatus); 490 if (status == NO_ERROR) { 491 status = cmdStatus; 492 } 493 if (status == NO_ERROR) { 494 status = remove_effect_from_hal_l(); 495 } 496 return status; 497 } 498 499 status_t AudioFlinger::EffectModule::remove_effect_from_hal_l() 500 { 501 if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC || 502 (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) { 503 sp<ThreadBase> thread = mThread.promote(); 504 if (thread != 0) { 505 audio_stream_t *stream = thread->stream(); 506 if (stream != NULL) { 507 stream->remove_audio_effect(stream, mEffectInterface); 508 } 509 } 510 } 511 return NO_ERROR; 512 } 513 514 status_t AudioFlinger::EffectModule::command(uint32_t cmdCode, 515 uint32_t cmdSize, 516 void *pCmdData, 517 uint32_t *replySize, 518 void *pReplyData) 519 { 520 Mutex::Autolock _l(mLock); 521 ALOGVV("command(), cmdCode: %d, mEffectInterface: %p", cmdCode, mEffectInterface); 522 523 if (mState == DESTROYED || mEffectInterface == NULL) { 524 return NO_INIT; 525 } 526 if (mStatus != NO_ERROR) { 527 return mStatus; 528 } 529 status_t status = (*mEffectInterface)->command(mEffectInterface, 530 cmdCode, 531 cmdSize, 532 pCmdData, 533 replySize, 534 pReplyData); 535 if (cmdCode != EFFECT_CMD_GET_PARAM && status == NO_ERROR) { 536 uint32_t size = (replySize == NULL) ? 0 : *replySize; 537 for (size_t i = 1; i < mHandles.size(); i++) { 538 EffectHandle *h = mHandles[i]; 539 if (h != NULL && !h->destroyed_l()) { 540 h->commandExecuted(cmdCode, cmdSize, pCmdData, size, pReplyData); 541 } 542 } 543 } 544 return status; 545 } 546 547 status_t AudioFlinger::EffectModule::setEnabled(bool enabled) 548 { 549 Mutex::Autolock _l(mLock); 550 return setEnabled_l(enabled); 551 } 552 553 // must be called with EffectModule::mLock held 554 status_t AudioFlinger::EffectModule::setEnabled_l(bool enabled) 555 { 556 557 ALOGV("setEnabled %p enabled %d", this, enabled); 558 559 if (enabled != isEnabled()) { 560 status_t status = AudioSystem::setEffectEnabled(mId, enabled); 561 if (enabled && status != NO_ERROR) { 562 return status; 563 } 564 565 switch (mState) { 566 // going from disabled to enabled 567 case IDLE: 568 mState = STARTING; 569 break; 570 case STOPPED: 571 mState = RESTART; 572 break; 573 case STOPPING: 574 mState = ACTIVE; 575 break; 576 577 // going from enabled to disabled 578 case RESTART: 579 mState = STOPPED; 580 break; 581 case STARTING: 582 mState = IDLE; 583 break; 584 case ACTIVE: 585 mState = STOPPING; 586 break; 587 case DESTROYED: 588 return NO_ERROR; // simply ignore as we are being destroyed 589 } 590 for (size_t i = 1; i < mHandles.size(); i++) { 591 EffectHandle *h = mHandles[i]; 592 if (h != NULL && !h->destroyed_l()) { 593 h->setEnabled(enabled); 594 } 595 } 596 } 597 return NO_ERROR; 598 } 599 600 bool AudioFlinger::EffectModule::isEnabled() const 601 { 602 switch (mState) { 603 case RESTART: 604 case STARTING: 605 case ACTIVE: 606 return true; 607 case IDLE: 608 case STOPPING: 609 case STOPPED: 610 case DESTROYED: 611 default: 612 return false; 613 } 614 } 615 616 bool AudioFlinger::EffectModule::isProcessEnabled() const 617 { 618 if (mStatus != NO_ERROR) { 619 return false; 620 } 621 622 switch (mState) { 623 case RESTART: 624 case ACTIVE: 625 case STOPPING: 626 case STOPPED: 627 return true; 628 case IDLE: 629 case STARTING: 630 case DESTROYED: 631 default: 632 return false; 633 } 634 } 635 636 status_t AudioFlinger::EffectModule::setVolume(uint32_t *left, uint32_t *right, bool controller) 637 { 638 Mutex::Autolock _l(mLock); 639 if (mStatus != NO_ERROR) { 640 return mStatus; 641 } 642 status_t status = NO_ERROR; 643 // Send volume indication if EFFECT_FLAG_VOLUME_IND is set and read back altered volume 644 // if controller flag is set (Note that controller == TRUE => EFFECT_FLAG_VOLUME_CTRL set) 645 if (isProcessEnabled() && 646 ((mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL || 647 (mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_IND)) { 648 status_t cmdStatus; 649 uint32_t volume[2]; 650 uint32_t *pVolume = NULL; 651 uint32_t size = sizeof(volume); 652 volume[0] = *left; 653 volume[1] = *right; 654 if (controller) { 655 pVolume = volume; 656 } 657 status = (*mEffectInterface)->command(mEffectInterface, 658 EFFECT_CMD_SET_VOLUME, 659 size, 660 volume, 661 &size, 662 pVolume); 663 if (controller && status == NO_ERROR && size == sizeof(volume)) { 664 *left = volume[0]; 665 *right = volume[1]; 666 } 667 } 668 return status; 669 } 670 671 status_t AudioFlinger::EffectModule::setDevice(audio_devices_t device) 672 { 673 if (device == AUDIO_DEVICE_NONE) { 674 return NO_ERROR; 675 } 676 677 Mutex::Autolock _l(mLock); 678 if (mStatus != NO_ERROR) { 679 return mStatus; 680 } 681 status_t status = NO_ERROR; 682 if ((mDescriptor.flags & EFFECT_FLAG_DEVICE_MASK) == EFFECT_FLAG_DEVICE_IND) { 683 status_t cmdStatus; 684 uint32_t size = sizeof(status_t); 685 uint32_t cmd = audio_is_output_devices(device) ? EFFECT_CMD_SET_DEVICE : 686 EFFECT_CMD_SET_INPUT_DEVICE; 687 status = (*mEffectInterface)->command(mEffectInterface, 688 cmd, 689 sizeof(uint32_t), 690 &device, 691 &size, 692 &cmdStatus); 693 } 694 return status; 695 } 696 697 status_t AudioFlinger::EffectModule::setMode(audio_mode_t mode) 698 { 699 Mutex::Autolock _l(mLock); 700 if (mStatus != NO_ERROR) { 701 return mStatus; 702 } 703 status_t status = NO_ERROR; 704 if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_MODE_MASK) == EFFECT_FLAG_AUDIO_MODE_IND) { 705 status_t cmdStatus; 706 uint32_t size = sizeof(status_t); 707 status = (*mEffectInterface)->command(mEffectInterface, 708 EFFECT_CMD_SET_AUDIO_MODE, 709 sizeof(audio_mode_t), 710 &mode, 711 &size, 712 &cmdStatus); 713 if (status == NO_ERROR) { 714 status = cmdStatus; 715 } 716 } 717 return status; 718 } 719 720 status_t AudioFlinger::EffectModule::setAudioSource(audio_source_t source) 721 { 722 Mutex::Autolock _l(mLock); 723 if (mStatus != NO_ERROR) { 724 return mStatus; 725 } 726 status_t status = NO_ERROR; 727 if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_SOURCE_MASK) == EFFECT_FLAG_AUDIO_SOURCE_IND) { 728 uint32_t size = 0; 729 status = (*mEffectInterface)->command(mEffectInterface, 730 EFFECT_CMD_SET_AUDIO_SOURCE, 731 sizeof(audio_source_t), 732 &source, 733 &size, 734 NULL); 735 } 736 return status; 737 } 738 739 void AudioFlinger::EffectModule::setSuspended(bool suspended) 740 { 741 Mutex::Autolock _l(mLock); 742 mSuspended = suspended; 743 } 744 745 bool AudioFlinger::EffectModule::suspended() const 746 { 747 Mutex::Autolock _l(mLock); 748 return mSuspended; 749 } 750 751 bool AudioFlinger::EffectModule::purgeHandles() 752 { 753 bool enabled = false; 754 Mutex::Autolock _l(mLock); 755 for (size_t i = 0; i < mHandles.size(); i++) { 756 EffectHandle *handle = mHandles[i]; 757 if (handle != NULL && !handle->destroyed_l()) { 758 handle->effect().clear(); 759 if (handle->hasControl()) { 760 enabled = handle->enabled(); 761 } 762 } 763 } 764 return enabled; 765 } 766 767 status_t AudioFlinger::EffectModule::setOffloaded(bool offloaded, audio_io_handle_t io) 768 { 769 Mutex::Autolock _l(mLock); 770 if (mStatus != NO_ERROR) { 771 return mStatus; 772 } 773 status_t status = NO_ERROR; 774 if ((mDescriptor.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) != 0) { 775 status_t cmdStatus; 776 uint32_t size = sizeof(status_t); 777 effect_offload_param_t cmd; 778 779 cmd.isOffload = offloaded; 780 cmd.ioHandle = io; 781 status = (*mEffectInterface)->command(mEffectInterface, 782 EFFECT_CMD_OFFLOAD, 783 sizeof(effect_offload_param_t), 784 &cmd, 785 &size, 786 &cmdStatus); 787 if (status == NO_ERROR) { 788 status = cmdStatus; 789 } 790 mOffloaded = (status == NO_ERROR) ? offloaded : false; 791 } else { 792 if (offloaded) { 793 status = INVALID_OPERATION; 794 } 795 mOffloaded = false; 796 } 797 ALOGV("setOffloaded() offloaded %d io %d status %d", offloaded, io, status); 798 return status; 799 } 800 801 bool AudioFlinger::EffectModule::isOffloaded() const 802 { 803 Mutex::Autolock _l(mLock); 804 return mOffloaded; 805 } 806 807 void AudioFlinger::EffectModule::dump(int fd, const Vector<String16>& args) 808 { 809 const size_t SIZE = 256; 810 char buffer[SIZE]; 811 String8 result; 812 813 snprintf(buffer, SIZE, "\tEffect ID %d:\n", mId); 814 result.append(buffer); 815 816 bool locked = AudioFlinger::dumpTryLock(mLock); 817 // failed to lock - AudioFlinger is probably deadlocked 818 if (!locked) { 819 result.append("\t\tCould not lock Fx mutex:\n"); 820 } 821 822 result.append("\t\tSession Status State Engine:\n"); 823 snprintf(buffer, SIZE, "\t\t%05d %03d %03d 0x%08x\n", 824 mSessionId, mStatus, mState, (uint32_t)mEffectInterface); 825 result.append(buffer); 826 827 result.append("\t\tDescriptor:\n"); 828 snprintf(buffer, SIZE, "\t\t- UUID: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n", 829 mDescriptor.uuid.timeLow, mDescriptor.uuid.timeMid, mDescriptor.uuid.timeHiAndVersion, 830 mDescriptor.uuid.clockSeq, mDescriptor.uuid.node[0], mDescriptor.uuid.node[1], 831 mDescriptor.uuid.node[2], 832 mDescriptor.uuid.node[3],mDescriptor.uuid.node[4],mDescriptor.uuid.node[5]); 833 result.append(buffer); 834 snprintf(buffer, SIZE, "\t\t- TYPE: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n", 835 mDescriptor.type.timeLow, mDescriptor.type.timeMid, 836 mDescriptor.type.timeHiAndVersion, 837 mDescriptor.type.clockSeq, mDescriptor.type.node[0], mDescriptor.type.node[1], 838 mDescriptor.type.node[2], 839 mDescriptor.type.node[3],mDescriptor.type.node[4],mDescriptor.type.node[5]); 840 result.append(buffer); 841 snprintf(buffer, SIZE, "\t\t- apiVersion: %08X\n\t\t- flags: %08X\n", 842 mDescriptor.apiVersion, 843 mDescriptor.flags); 844 result.append(buffer); 845 snprintf(buffer, SIZE, "\t\t- name: %s\n", 846 mDescriptor.name); 847 result.append(buffer); 848 snprintf(buffer, SIZE, "\t\t- implementor: %s\n", 849 mDescriptor.implementor); 850 result.append(buffer); 851 852 result.append("\t\t- Input configuration:\n"); 853 result.append("\t\t\tBuffer Frames Smp rate Channels Format\n"); 854 snprintf(buffer, SIZE, "\t\t\t0x%08x %05d %05d %08x %d\n", 855 (uint32_t)mConfig.inputCfg.buffer.raw, 856 mConfig.inputCfg.buffer.frameCount, 857 mConfig.inputCfg.samplingRate, 858 mConfig.inputCfg.channels, 859 mConfig.inputCfg.format); 860 result.append(buffer); 861 862 result.append("\t\t- Output configuration:\n"); 863 result.append("\t\t\tBuffer Frames Smp rate Channels Format\n"); 864 snprintf(buffer, SIZE, "\t\t\t0x%08x %05d %05d %08x %d\n", 865 (uint32_t)mConfig.outputCfg.buffer.raw, 866 mConfig.outputCfg.buffer.frameCount, 867 mConfig.outputCfg.samplingRate, 868 mConfig.outputCfg.channels, 869 mConfig.outputCfg.format); 870 result.append(buffer); 871 872 snprintf(buffer, SIZE, "\t\t%d Clients:\n", mHandles.size()); 873 result.append(buffer); 874 result.append("\t\t\tPid Priority Ctrl Locked client server\n"); 875 for (size_t i = 0; i < mHandles.size(); ++i) { 876 EffectHandle *handle = mHandles[i]; 877 if (handle != NULL && !handle->destroyed_l()) { 878 handle->dump(buffer, SIZE); 879 result.append(buffer); 880 } 881 } 882 883 result.append("\n"); 884 885 write(fd, result.string(), result.length()); 886 887 if (locked) { 888 mLock.unlock(); 889 } 890 } 891 892 // ---------------------------------------------------------------------------- 893 // EffectHandle implementation 894 // ---------------------------------------------------------------------------- 895 896 #undef LOG_TAG 897 #define LOG_TAG "AudioFlinger::EffectHandle" 898 899 AudioFlinger::EffectHandle::EffectHandle(const sp<EffectModule>& effect, 900 const sp<AudioFlinger::Client>& client, 901 const sp<IEffectClient>& effectClient, 902 int32_t priority) 903 : BnEffect(), 904 mEffect(effect), mEffectClient(effectClient), mClient(client), mCblk(NULL), 905 mPriority(priority), mHasControl(false), mEnabled(false), mDestroyed(false) 906 { 907 ALOGV("constructor %p", this); 908 909 if (client == 0) { 910 return; 911 } 912 int bufOffset = ((sizeof(effect_param_cblk_t) - 1) / sizeof(int) + 1) * sizeof(int); 913 mCblkMemory = client->heap()->allocate(EFFECT_PARAM_BUFFER_SIZE + bufOffset); 914 if (mCblkMemory != 0) { 915 mCblk = static_cast<effect_param_cblk_t *>(mCblkMemory->pointer()); 916 917 if (mCblk != NULL) { 918 new(mCblk) effect_param_cblk_t(); 919 mBuffer = (uint8_t *)mCblk + bufOffset; 920 } 921 } else { 922 ALOGE("not enough memory for Effect size=%u", EFFECT_PARAM_BUFFER_SIZE + 923 sizeof(effect_param_cblk_t)); 924 return; 925 } 926 } 927 928 AudioFlinger::EffectHandle::~EffectHandle() 929 { 930 ALOGV("Destructor %p", this); 931 932 if (mEffect == 0) { 933 mDestroyed = true; 934 return; 935 } 936 mEffect->lock(); 937 mDestroyed = true; 938 mEffect->unlock(); 939 disconnect(false); 940 } 941 942 status_t AudioFlinger::EffectHandle::enable() 943 { 944 ALOGV("enable %p", this); 945 if (!mHasControl) { 946 return INVALID_OPERATION; 947 } 948 if (mEffect == 0) { 949 return DEAD_OBJECT; 950 } 951 952 if (mEnabled) { 953 return NO_ERROR; 954 } 955 956 mEnabled = true; 957 958 sp<ThreadBase> thread = mEffect->thread().promote(); 959 if (thread != 0) { 960 thread->checkSuspendOnEffectEnabled(mEffect, true, mEffect->sessionId()); 961 } 962 963 // checkSuspendOnEffectEnabled() can suspend this same effect when enabled 964 if (mEffect->suspended()) { 965 return NO_ERROR; 966 } 967 968 status_t status = mEffect->setEnabled(true); 969 if (status != NO_ERROR) { 970 if (thread != 0) { 971 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 972 } 973 mEnabled = false; 974 } else { 975 if (thread != 0) { 976 if (thread->type() == ThreadBase::OFFLOAD) { 977 PlaybackThread *t = (PlaybackThread *)thread.get(); 978 Mutex::Autolock _l(t->mLock); 979 t->broadcast_l(); 980 } 981 if (!mEffect->isOffloadable()) { 982 if (thread->type() == ThreadBase::OFFLOAD) { 983 PlaybackThread *t = (PlaybackThread *)thread.get(); 984 t->invalidateTracks(AUDIO_STREAM_MUSIC); 985 } 986 if (mEffect->sessionId() == AUDIO_SESSION_OUTPUT_MIX) { 987 thread->mAudioFlinger->onNonOffloadableGlobalEffectEnable(); 988 } 989 } 990 } 991 } 992 return status; 993 } 994 995 status_t AudioFlinger::EffectHandle::disable() 996 { 997 ALOGV("disable %p", this); 998 if (!mHasControl) { 999 return INVALID_OPERATION; 1000 } 1001 if (mEffect == 0) { 1002 return DEAD_OBJECT; 1003 } 1004 1005 if (!mEnabled) { 1006 return NO_ERROR; 1007 } 1008 mEnabled = false; 1009 1010 if (mEffect->suspended()) { 1011 return NO_ERROR; 1012 } 1013 1014 status_t status = mEffect->setEnabled(false); 1015 1016 sp<ThreadBase> thread = mEffect->thread().promote(); 1017 if (thread != 0) { 1018 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 1019 if (thread->type() == ThreadBase::OFFLOAD) { 1020 PlaybackThread *t = (PlaybackThread *)thread.get(); 1021 Mutex::Autolock _l(t->mLock); 1022 t->broadcast_l(); 1023 } 1024 } 1025 1026 return status; 1027 } 1028 1029 void AudioFlinger::EffectHandle::disconnect() 1030 { 1031 disconnect(true); 1032 } 1033 1034 void AudioFlinger::EffectHandle::disconnect(bool unpinIfLast) 1035 { 1036 ALOGV("disconnect(%s)", unpinIfLast ? "true" : "false"); 1037 if (mEffect == 0) { 1038 return; 1039 } 1040 // restore suspended effects if the disconnected handle was enabled and the last one. 1041 if ((mEffect->disconnect(this, unpinIfLast) == 0) && mEnabled) { 1042 sp<ThreadBase> thread = mEffect->thread().promote(); 1043 if (thread != 0) { 1044 thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId()); 1045 } 1046 } 1047 1048 // release sp on module => module destructor can be called now 1049 mEffect.clear(); 1050 if (mClient != 0) { 1051 if (mCblk != NULL) { 1052 // unlike ~TrackBase(), mCblk is never a local new, so don't delete 1053 mCblk->~effect_param_cblk_t(); // destroy our shared-structure. 1054 } 1055 mCblkMemory.clear(); // free the shared memory before releasing the heap it belongs to 1056 // Client destructor must run with AudioFlinger mutex locked 1057 Mutex::Autolock _l(mClient->audioFlinger()->mLock); 1058 mClient.clear(); 1059 } 1060 } 1061 1062 status_t AudioFlinger::EffectHandle::command(uint32_t cmdCode, 1063 uint32_t cmdSize, 1064 void *pCmdData, 1065 uint32_t *replySize, 1066 void *pReplyData) 1067 { 1068 ALOGVV("command(), cmdCode: %d, mHasControl: %d, mEffect: %p", 1069 cmdCode, mHasControl, (mEffect == 0) ? 0 : mEffect.get()); 1070 1071 // only get parameter command is permitted for applications not controlling the effect 1072 if (!mHasControl && cmdCode != EFFECT_CMD_GET_PARAM) { 1073 return INVALID_OPERATION; 1074 } 1075 if (mEffect == 0) { 1076 return DEAD_OBJECT; 1077 } 1078 if (mClient == 0) { 1079 return INVALID_OPERATION; 1080 } 1081 1082 // handle commands that are not forwarded transparently to effect engine 1083 if (cmdCode == EFFECT_CMD_SET_PARAM_COMMIT) { 1084 // No need to trylock() here as this function is executed in the binder thread serving a 1085 // particular client process: no risk to block the whole media server process or mixer 1086 // threads if we are stuck here 1087 Mutex::Autolock _l(mCblk->lock); 1088 if (mCblk->clientIndex > EFFECT_PARAM_BUFFER_SIZE || 1089 mCblk->serverIndex > EFFECT_PARAM_BUFFER_SIZE) { 1090 mCblk->serverIndex = 0; 1091 mCblk->clientIndex = 0; 1092 return BAD_VALUE; 1093 } 1094 status_t status = NO_ERROR; 1095 while (mCblk->serverIndex < mCblk->clientIndex) { 1096 int reply; 1097 uint32_t rsize = sizeof(int); 1098 int *p = (int *)(mBuffer + mCblk->serverIndex); 1099 int size = *p++; 1100 if (((uint8_t *)p + size) > mBuffer + mCblk->clientIndex) { 1101 ALOGW("command(): invalid parameter block size"); 1102 break; 1103 } 1104 effect_param_t *param = (effect_param_t *)p; 1105 if (param->psize == 0 || param->vsize == 0) { 1106 ALOGW("command(): null parameter or value size"); 1107 mCblk->serverIndex += size; 1108 continue; 1109 } 1110 uint32_t psize = sizeof(effect_param_t) + 1111 ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) + 1112 param->vsize; 1113 status_t ret = mEffect->command(EFFECT_CMD_SET_PARAM, 1114 psize, 1115 p, 1116 &rsize, 1117 &reply); 1118 // stop at first error encountered 1119 if (ret != NO_ERROR) { 1120 status = ret; 1121 *(int *)pReplyData = reply; 1122 break; 1123 } else if (reply != NO_ERROR) { 1124 *(int *)pReplyData = reply; 1125 break; 1126 } 1127 mCblk->serverIndex += size; 1128 } 1129 mCblk->serverIndex = 0; 1130 mCblk->clientIndex = 0; 1131 return status; 1132 } else if (cmdCode == EFFECT_CMD_ENABLE) { 1133 *(int *)pReplyData = NO_ERROR; 1134 return enable(); 1135 } else if (cmdCode == EFFECT_CMD_DISABLE) { 1136 *(int *)pReplyData = NO_ERROR; 1137 return disable(); 1138 } 1139 1140 return mEffect->command(cmdCode, cmdSize, pCmdData, replySize, pReplyData); 1141 } 1142 1143 void AudioFlinger::EffectHandle::setControl(bool hasControl, bool signal, bool enabled) 1144 { 1145 ALOGV("setControl %p control %d", this, hasControl); 1146 1147 mHasControl = hasControl; 1148 mEnabled = enabled; 1149 1150 if (signal && mEffectClient != 0) { 1151 mEffectClient->controlStatusChanged(hasControl); 1152 } 1153 } 1154 1155 void AudioFlinger::EffectHandle::commandExecuted(uint32_t cmdCode, 1156 uint32_t cmdSize, 1157 void *pCmdData, 1158 uint32_t replySize, 1159 void *pReplyData) 1160 { 1161 if (mEffectClient != 0) { 1162 mEffectClient->commandExecuted(cmdCode, cmdSize, pCmdData, replySize, pReplyData); 1163 } 1164 } 1165 1166 1167 1168 void AudioFlinger::EffectHandle::setEnabled(bool enabled) 1169 { 1170 if (mEffectClient != 0) { 1171 mEffectClient->enableStatusChanged(enabled); 1172 } 1173 } 1174 1175 status_t AudioFlinger::EffectHandle::onTransact( 1176 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1177 { 1178 return BnEffect::onTransact(code, data, reply, flags); 1179 } 1180 1181 1182 void AudioFlinger::EffectHandle::dump(char* buffer, size_t size) 1183 { 1184 bool locked = mCblk != NULL && AudioFlinger::dumpTryLock(mCblk->lock); 1185 1186 snprintf(buffer, size, "\t\t\t%05d %05d %01u %01u %05u %05u\n", 1187 (mClient == 0) ? getpid_cached : mClient->pid(), 1188 mPriority, 1189 mHasControl, 1190 !locked, 1191 mCblk ? mCblk->clientIndex : 0, 1192 mCblk ? mCblk->serverIndex : 0 1193 ); 1194 1195 if (locked) { 1196 mCblk->lock.unlock(); 1197 } 1198 } 1199 1200 #undef LOG_TAG 1201 #define LOG_TAG "AudioFlinger::EffectChain" 1202 1203 AudioFlinger::EffectChain::EffectChain(ThreadBase *thread, 1204 int sessionId) 1205 : mThread(thread), mSessionId(sessionId), mActiveTrackCnt(0), mTrackCnt(0), mTailBufferCount(0), 1206 mOwnInBuffer(false), mVolumeCtrlIdx(-1), mLeftVolume(UINT_MAX), mRightVolume(UINT_MAX), 1207 mNewLeftVolume(UINT_MAX), mNewRightVolume(UINT_MAX) 1208 { 1209 mStrategy = AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC); 1210 if (thread == NULL) { 1211 return; 1212 } 1213 mMaxTailBuffers = ((kProcessTailDurationMs * thread->sampleRate()) / 1000) / 1214 thread->frameCount(); 1215 } 1216 1217 AudioFlinger::EffectChain::~EffectChain() 1218 { 1219 if (mOwnInBuffer) { 1220 delete mInBuffer; 1221 } 1222 1223 } 1224 1225 // getEffectFromDesc_l() must be called with ThreadBase::mLock held 1226 sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromDesc_l( 1227 effect_descriptor_t *descriptor) 1228 { 1229 size_t size = mEffects.size(); 1230 1231 for (size_t i = 0; i < size; i++) { 1232 if (memcmp(&mEffects[i]->desc().uuid, &descriptor->uuid, sizeof(effect_uuid_t)) == 0) { 1233 return mEffects[i]; 1234 } 1235 } 1236 return 0; 1237 } 1238 1239 // getEffectFromId_l() must be called with ThreadBase::mLock held 1240 sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromId_l(int id) 1241 { 1242 size_t size = mEffects.size(); 1243 1244 for (size_t i = 0; i < size; i++) { 1245 // by convention, return first effect if id provided is 0 (0 is never a valid id) 1246 if (id == 0 || mEffects[i]->id() == id) { 1247 return mEffects[i]; 1248 } 1249 } 1250 return 0; 1251 } 1252 1253 // getEffectFromType_l() must be called with ThreadBase::mLock held 1254 sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromType_l( 1255 const effect_uuid_t *type) 1256 { 1257 size_t size = mEffects.size(); 1258 1259 for (size_t i = 0; i < size; i++) { 1260 if (memcmp(&mEffects[i]->desc().type, type, sizeof(effect_uuid_t)) == 0) { 1261 return mEffects[i]; 1262 } 1263 } 1264 return 0; 1265 } 1266 1267 void AudioFlinger::EffectChain::clearInputBuffer() 1268 { 1269 Mutex::Autolock _l(mLock); 1270 sp<ThreadBase> thread = mThread.promote(); 1271 if (thread == 0) { 1272 ALOGW("clearInputBuffer(): cannot promote mixer thread"); 1273 return; 1274 } 1275 clearInputBuffer_l(thread); 1276 } 1277 1278 // Must be called with EffectChain::mLock locked 1279 void AudioFlinger::EffectChain::clearInputBuffer_l(sp<ThreadBase> thread) 1280 { 1281 memset(mInBuffer, 0, thread->frameCount() * thread->frameSize()); 1282 } 1283 1284 // Must be called with EffectChain::mLock locked 1285 void AudioFlinger::EffectChain::process_l() 1286 { 1287 sp<ThreadBase> thread = mThread.promote(); 1288 if (thread == 0) { 1289 ALOGW("process_l(): cannot promote mixer thread"); 1290 return; 1291 } 1292 bool isGlobalSession = (mSessionId == AUDIO_SESSION_OUTPUT_MIX) || 1293 (mSessionId == AUDIO_SESSION_OUTPUT_STAGE); 1294 // never process effects when: 1295 // - on an OFFLOAD thread 1296 // - no more tracks are on the session and the effect tail has been rendered 1297 bool doProcess = (thread->type() != ThreadBase::OFFLOAD); 1298 if (!isGlobalSession) { 1299 bool tracksOnSession = (trackCnt() != 0); 1300 1301 if (!tracksOnSession && mTailBufferCount == 0) { 1302 doProcess = false; 1303 } 1304 1305 if (activeTrackCnt() == 0) { 1306 // if no track is active and the effect tail has not been rendered, 1307 // the input buffer must be cleared here as the mixer process will not do it 1308 if (tracksOnSession || mTailBufferCount > 0) { 1309 clearInputBuffer_l(thread); 1310 if (mTailBufferCount > 0) { 1311 mTailBufferCount--; 1312 } 1313 } 1314 } 1315 } 1316 1317 size_t size = mEffects.size(); 1318 if (doProcess) { 1319 for (size_t i = 0; i < size; i++) { 1320 mEffects[i]->process(); 1321 } 1322 } 1323 for (size_t i = 0; i < size; i++) { 1324 mEffects[i]->updateState(); 1325 } 1326 } 1327 1328 // addEffect_l() must be called with PlaybackThread::mLock held 1329 status_t AudioFlinger::EffectChain::addEffect_l(const sp<EffectModule>& effect) 1330 { 1331 effect_descriptor_t desc = effect->desc(); 1332 uint32_t insertPref = desc.flags & EFFECT_FLAG_INSERT_MASK; 1333 1334 Mutex::Autolock _l(mLock); 1335 effect->setChain(this); 1336 sp<ThreadBase> thread = mThread.promote(); 1337 if (thread == 0) { 1338 return NO_INIT; 1339 } 1340 effect->setThread(thread); 1341 1342 if ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) { 1343 // Auxiliary effects are inserted at the beginning of mEffects vector as 1344 // they are processed first and accumulated in chain input buffer 1345 mEffects.insertAt(effect, 0); 1346 1347 // the input buffer for auxiliary effect contains mono samples in 1348 // 32 bit format. This is to avoid saturation in AudoMixer 1349 // accumulation stage. Saturation is done in EffectModule::process() before 1350 // calling the process in effect engine 1351 size_t numSamples = thread->frameCount(); 1352 int32_t *buffer = new int32_t[numSamples]; 1353 memset(buffer, 0, numSamples * sizeof(int32_t)); 1354 effect->setInBuffer((int16_t *)buffer); 1355 // auxiliary effects output samples to chain input buffer for further processing 1356 // by insert effects 1357 effect->setOutBuffer(mInBuffer); 1358 } else { 1359 // Insert effects are inserted at the end of mEffects vector as they are processed 1360 // after track and auxiliary effects. 1361 // Insert effect order as a function of indicated preference: 1362 // if EFFECT_FLAG_INSERT_EXCLUSIVE, insert in first position or reject if 1363 // another effect is present 1364 // else if EFFECT_FLAG_INSERT_FIRST, insert in first position or after the 1365 // last effect claiming first position 1366 // else if EFFECT_FLAG_INSERT_LAST, insert in last position or before the 1367 // first effect claiming last position 1368 // else if EFFECT_FLAG_INSERT_ANY insert after first or before last 1369 // Reject insertion if an effect with EFFECT_FLAG_INSERT_EXCLUSIVE is 1370 // already present 1371 1372 size_t size = mEffects.size(); 1373 size_t idx_insert = size; 1374 ssize_t idx_insert_first = -1; 1375 ssize_t idx_insert_last = -1; 1376 1377 for (size_t i = 0; i < size; i++) { 1378 effect_descriptor_t d = mEffects[i]->desc(); 1379 uint32_t iMode = d.flags & EFFECT_FLAG_TYPE_MASK; 1380 uint32_t iPref = d.flags & EFFECT_FLAG_INSERT_MASK; 1381 if (iMode == EFFECT_FLAG_TYPE_INSERT) { 1382 // check invalid effect chaining combinations 1383 if (insertPref == EFFECT_FLAG_INSERT_EXCLUSIVE || 1384 iPref == EFFECT_FLAG_INSERT_EXCLUSIVE) { 1385 ALOGW("addEffect_l() could not insert effect %s: exclusive conflict with %s", 1386 desc.name, d.name); 1387 return INVALID_OPERATION; 1388 } 1389 // remember position of first insert effect and by default 1390 // select this as insert position for new effect 1391 if (idx_insert == size) { 1392 idx_insert = i; 1393 } 1394 // remember position of last insert effect claiming 1395 // first position 1396 if (iPref == EFFECT_FLAG_INSERT_FIRST) { 1397 idx_insert_first = i; 1398 } 1399 // remember position of first insert effect claiming 1400 // last position 1401 if (iPref == EFFECT_FLAG_INSERT_LAST && 1402 idx_insert_last == -1) { 1403 idx_insert_last = i; 1404 } 1405 } 1406 } 1407 1408 // modify idx_insert from first position if needed 1409 if (insertPref == EFFECT_FLAG_INSERT_LAST) { 1410 if (idx_insert_last != -1) { 1411 idx_insert = idx_insert_last; 1412 } else { 1413 idx_insert = size; 1414 } 1415 } else { 1416 if (idx_insert_first != -1) { 1417 idx_insert = idx_insert_first + 1; 1418 } 1419 } 1420 1421 // always read samples from chain input buffer 1422 effect->setInBuffer(mInBuffer); 1423 1424 // if last effect in the chain, output samples to chain 1425 // output buffer, otherwise to chain input buffer 1426 if (idx_insert == size) { 1427 if (idx_insert != 0) { 1428 mEffects[idx_insert-1]->setOutBuffer(mInBuffer); 1429 mEffects[idx_insert-1]->configure(); 1430 } 1431 effect->setOutBuffer(mOutBuffer); 1432 } else { 1433 effect->setOutBuffer(mInBuffer); 1434 } 1435 mEffects.insertAt(effect, idx_insert); 1436 1437 ALOGV("addEffect_l() effect %p, added in chain %p at rank %d", effect.get(), this, 1438 idx_insert); 1439 } 1440 effect->configure(); 1441 return NO_ERROR; 1442 } 1443 1444 // removeEffect_l() must be called with PlaybackThread::mLock held 1445 size_t AudioFlinger::EffectChain::removeEffect_l(const sp<EffectModule>& effect) 1446 { 1447 Mutex::Autolock _l(mLock); 1448 size_t size = mEffects.size(); 1449 uint32_t type = effect->desc().flags & EFFECT_FLAG_TYPE_MASK; 1450 1451 for (size_t i = 0; i < size; i++) { 1452 if (effect == mEffects[i]) { 1453 // calling stop here will remove pre-processing effect from the audio HAL. 1454 // This is safe as we hold the EffectChain mutex which guarantees that we are not in 1455 // the middle of a read from audio HAL 1456 if (mEffects[i]->state() == EffectModule::ACTIVE || 1457 mEffects[i]->state() == EffectModule::STOPPING) { 1458 mEffects[i]->stop(); 1459 } 1460 if (type == EFFECT_FLAG_TYPE_AUXILIARY) { 1461 delete[] effect->inBuffer(); 1462 } else { 1463 if (i == size - 1 && i != 0) { 1464 mEffects[i - 1]->setOutBuffer(mOutBuffer); 1465 mEffects[i - 1]->configure(); 1466 } 1467 } 1468 mEffects.removeAt(i); 1469 ALOGV("removeEffect_l() effect %p, removed from chain %p at rank %d", effect.get(), 1470 this, i); 1471 break; 1472 } 1473 } 1474 1475 return mEffects.size(); 1476 } 1477 1478 // setDevice_l() must be called with PlaybackThread::mLock held 1479 void AudioFlinger::EffectChain::setDevice_l(audio_devices_t device) 1480 { 1481 size_t size = mEffects.size(); 1482 for (size_t i = 0; i < size; i++) { 1483 mEffects[i]->setDevice(device); 1484 } 1485 } 1486 1487 // setMode_l() must be called with PlaybackThread::mLock held 1488 void AudioFlinger::EffectChain::setMode_l(audio_mode_t mode) 1489 { 1490 size_t size = mEffects.size(); 1491 for (size_t i = 0; i < size; i++) { 1492 mEffects[i]->setMode(mode); 1493 } 1494 } 1495 1496 // setAudioSource_l() must be called with PlaybackThread::mLock held 1497 void AudioFlinger::EffectChain::setAudioSource_l(audio_source_t source) 1498 { 1499 size_t size = mEffects.size(); 1500 for (size_t i = 0; i < size; i++) { 1501 mEffects[i]->setAudioSource(source); 1502 } 1503 } 1504 1505 // setVolume_l() must be called with PlaybackThread::mLock held 1506 bool AudioFlinger::EffectChain::setVolume_l(uint32_t *left, uint32_t *right) 1507 { 1508 uint32_t newLeft = *left; 1509 uint32_t newRight = *right; 1510 bool hasControl = false; 1511 int ctrlIdx = -1; 1512 size_t size = mEffects.size(); 1513 1514 // first update volume controller 1515 for (size_t i = size; i > 0; i--) { 1516 if (mEffects[i - 1]->isProcessEnabled() && 1517 (mEffects[i - 1]->desc().flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL) { 1518 ctrlIdx = i - 1; 1519 hasControl = true; 1520 break; 1521 } 1522 } 1523 1524 if (ctrlIdx == mVolumeCtrlIdx && *left == mLeftVolume && *right == mRightVolume) { 1525 if (hasControl) { 1526 *left = mNewLeftVolume; 1527 *right = mNewRightVolume; 1528 } 1529 return hasControl; 1530 } 1531 1532 mVolumeCtrlIdx = ctrlIdx; 1533 mLeftVolume = newLeft; 1534 mRightVolume = newRight; 1535 1536 // second get volume update from volume controller 1537 if (ctrlIdx >= 0) { 1538 mEffects[ctrlIdx]->setVolume(&newLeft, &newRight, true); 1539 mNewLeftVolume = newLeft; 1540 mNewRightVolume = newRight; 1541 } 1542 // then indicate volume to all other effects in chain. 1543 // Pass altered volume to effects before volume controller 1544 // and requested volume to effects after controller 1545 uint32_t lVol = newLeft; 1546 uint32_t rVol = newRight; 1547 1548 for (size_t i = 0; i < size; i++) { 1549 if ((int)i == ctrlIdx) { 1550 continue; 1551 } 1552 // this also works for ctrlIdx == -1 when there is no volume controller 1553 if ((int)i > ctrlIdx) { 1554 lVol = *left; 1555 rVol = *right; 1556 } 1557 mEffects[i]->setVolume(&lVol, &rVol, false); 1558 } 1559 *left = newLeft; 1560 *right = newRight; 1561 1562 return hasControl; 1563 } 1564 1565 void AudioFlinger::EffectChain::dump(int fd, const Vector<String16>& args) 1566 { 1567 const size_t SIZE = 256; 1568 char buffer[SIZE]; 1569 String8 result; 1570 1571 snprintf(buffer, SIZE, "Effects for session %d:\n", mSessionId); 1572 result.append(buffer); 1573 1574 bool locked = AudioFlinger::dumpTryLock(mLock); 1575 // failed to lock - AudioFlinger is probably deadlocked 1576 if (!locked) { 1577 result.append("\tCould not lock mutex:\n"); 1578 } 1579 1580 result.append("\tNum fx In buffer Out buffer Active tracks:\n"); 1581 snprintf(buffer, SIZE, "\t%02d 0x%08x 0x%08x %d\n", 1582 mEffects.size(), 1583 (uint32_t)mInBuffer, 1584 (uint32_t)mOutBuffer, 1585 mActiveTrackCnt); 1586 result.append(buffer); 1587 write(fd, result.string(), result.size()); 1588 1589 for (size_t i = 0; i < mEffects.size(); ++i) { 1590 sp<EffectModule> effect = mEffects[i]; 1591 if (effect != 0) { 1592 effect->dump(fd, args); 1593 } 1594 } 1595 1596 if (locked) { 1597 mLock.unlock(); 1598 } 1599 } 1600 1601 // must be called with ThreadBase::mLock held 1602 void AudioFlinger::EffectChain::setEffectSuspended_l( 1603 const effect_uuid_t *type, bool suspend) 1604 { 1605 sp<SuspendedEffectDesc> desc; 1606 // use effect type UUID timelow as key as there is no real risk of identical 1607 // timeLow fields among effect type UUIDs. 1608 ssize_t index = mSuspendedEffects.indexOfKey(type->timeLow); 1609 if (suspend) { 1610 if (index >= 0) { 1611 desc = mSuspendedEffects.valueAt(index); 1612 } else { 1613 desc = new SuspendedEffectDesc(); 1614 desc->mType = *type; 1615 mSuspendedEffects.add(type->timeLow, desc); 1616 ALOGV("setEffectSuspended_l() add entry for %08x", type->timeLow); 1617 } 1618 if (desc->mRefCount++ == 0) { 1619 sp<EffectModule> effect = getEffectIfEnabled(type); 1620 if (effect != 0) { 1621 desc->mEffect = effect; 1622 effect->setSuspended(true); 1623 effect->setEnabled(false); 1624 } 1625 } 1626 } else { 1627 if (index < 0) { 1628 return; 1629 } 1630 desc = mSuspendedEffects.valueAt(index); 1631 if (desc->mRefCount <= 0) { 1632 ALOGW("setEffectSuspended_l() restore refcount should not be 0 %d", desc->mRefCount); 1633 desc->mRefCount = 1; 1634 } 1635 if (--desc->mRefCount == 0) { 1636 ALOGV("setEffectSuspended_l() remove entry for %08x", mSuspendedEffects.keyAt(index)); 1637 if (desc->mEffect != 0) { 1638 sp<EffectModule> effect = desc->mEffect.promote(); 1639 if (effect != 0) { 1640 effect->setSuspended(false); 1641 effect->lock(); 1642 EffectHandle *handle = effect->controlHandle_l(); 1643 if (handle != NULL && !handle->destroyed_l()) { 1644 effect->setEnabled_l(handle->enabled()); 1645 } 1646 effect->unlock(); 1647 } 1648 desc->mEffect.clear(); 1649 } 1650 mSuspendedEffects.removeItemsAt(index); 1651 } 1652 } 1653 } 1654 1655 // must be called with ThreadBase::mLock held 1656 void AudioFlinger::EffectChain::setEffectSuspendedAll_l(bool suspend) 1657 { 1658 sp<SuspendedEffectDesc> desc; 1659 1660 ssize_t index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll); 1661 if (suspend) { 1662 if (index >= 0) { 1663 desc = mSuspendedEffects.valueAt(index); 1664 } else { 1665 desc = new SuspendedEffectDesc(); 1666 mSuspendedEffects.add((int)kKeyForSuspendAll, desc); 1667 ALOGV("setEffectSuspendedAll_l() add entry for 0"); 1668 } 1669 if (desc->mRefCount++ == 0) { 1670 Vector< sp<EffectModule> > effects; 1671 getSuspendEligibleEffects(effects); 1672 for (size_t i = 0; i < effects.size(); i++) { 1673 setEffectSuspended_l(&effects[i]->desc().type, true); 1674 } 1675 } 1676 } else { 1677 if (index < 0) { 1678 return; 1679 } 1680 desc = mSuspendedEffects.valueAt(index); 1681 if (desc->mRefCount <= 0) { 1682 ALOGW("setEffectSuspendedAll_l() restore refcount should not be 0 %d", desc->mRefCount); 1683 desc->mRefCount = 1; 1684 } 1685 if (--desc->mRefCount == 0) { 1686 Vector<const effect_uuid_t *> types; 1687 for (size_t i = 0; i < mSuspendedEffects.size(); i++) { 1688 if (mSuspendedEffects.keyAt(i) == (int)kKeyForSuspendAll) { 1689 continue; 1690 } 1691 types.add(&mSuspendedEffects.valueAt(i)->mType); 1692 } 1693 for (size_t i = 0; i < types.size(); i++) { 1694 setEffectSuspended_l(types[i], false); 1695 } 1696 ALOGV("setEffectSuspendedAll_l() remove entry for %08x", 1697 mSuspendedEffects.keyAt(index)); 1698 mSuspendedEffects.removeItem((int)kKeyForSuspendAll); 1699 } 1700 } 1701 } 1702 1703 1704 // The volume effect is used for automated tests only 1705 #ifndef OPENSL_ES_H_ 1706 static const effect_uuid_t SL_IID_VOLUME_ = { 0x09e8ede0, 0xddde, 0x11db, 0xb4f6, 1707 { 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } }; 1708 const effect_uuid_t * const SL_IID_VOLUME = &SL_IID_VOLUME_; 1709 #endif //OPENSL_ES_H_ 1710 1711 bool AudioFlinger::EffectChain::isEffectEligibleForSuspend(const effect_descriptor_t& desc) 1712 { 1713 // auxiliary effects and visualizer are never suspended on output mix 1714 if ((mSessionId == AUDIO_SESSION_OUTPUT_MIX) && 1715 (((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) || 1716 (memcmp(&desc.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0) || 1717 (memcmp(&desc.type, SL_IID_VOLUME, sizeof(effect_uuid_t)) == 0))) { 1718 return false; 1719 } 1720 return true; 1721 } 1722 1723 void AudioFlinger::EffectChain::getSuspendEligibleEffects( 1724 Vector< sp<AudioFlinger::EffectModule> > &effects) 1725 { 1726 effects.clear(); 1727 for (size_t i = 0; i < mEffects.size(); i++) { 1728 if (isEffectEligibleForSuspend(mEffects[i]->desc())) { 1729 effects.add(mEffects[i]); 1730 } 1731 } 1732 } 1733 1734 sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectIfEnabled( 1735 const effect_uuid_t *type) 1736 { 1737 sp<EffectModule> effect = getEffectFromType_l(type); 1738 return effect != 0 && effect->isEnabled() ? effect : 0; 1739 } 1740 1741 void AudioFlinger::EffectChain::checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, 1742 bool enabled) 1743 { 1744 ssize_t index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow); 1745 if (enabled) { 1746 if (index < 0) { 1747 // if the effect is not suspend check if all effects are suspended 1748 index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll); 1749 if (index < 0) { 1750 return; 1751 } 1752 if (!isEffectEligibleForSuspend(effect->desc())) { 1753 return; 1754 } 1755 setEffectSuspended_l(&effect->desc().type, enabled); 1756 index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow); 1757 if (index < 0) { 1758 ALOGW("checkSuspendOnEffectEnabled() Fx should be suspended here!"); 1759 return; 1760 } 1761 } 1762 ALOGV("checkSuspendOnEffectEnabled() enable suspending fx %08x", 1763 effect->desc().type.timeLow); 1764 sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index); 1765 // if effect is requested to suspended but was not yet enabled, supend it now. 1766 if (desc->mEffect == 0) { 1767 desc->mEffect = effect; 1768 effect->setEnabled(false); 1769 effect->setSuspended(true); 1770 } 1771 } else { 1772 if (index < 0) { 1773 return; 1774 } 1775 ALOGV("checkSuspendOnEffectEnabled() disable restoring fx %08x", 1776 effect->desc().type.timeLow); 1777 sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index); 1778 desc->mEffect.clear(); 1779 effect->setSuspended(false); 1780 } 1781 } 1782 1783 bool AudioFlinger::EffectChain::isNonOffloadableEnabled() 1784 { 1785 Mutex::Autolock _l(mLock); 1786 size_t size = mEffects.size(); 1787 for (size_t i = 0; i < size; i++) { 1788 if (mEffects[i]->isEnabled() && !mEffects[i]->isOffloadable()) { 1789 return true; 1790 } 1791 } 1792 return false; 1793 } 1794 1795 }; // namespace android 1796
