1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 18 #include "sles_allinclusive.h" 19 #include "math.h" 20 #include "utils/RefBase.h" 21 #include <audio_effects/effect_bassboost.h> 22 #include <audio_effects/effect_equalizer.h> 23 #include <audio_effects/effect_environmentalreverb.h> 24 #include <audio_effects/effect_presetreverb.h> 25 #include <audio_effects/effect_virtualizer.h> 26 27 #include <system/audio.h> 28 29 static const int EQUALIZER_PARAM_SIZE_MAX = sizeof(effect_param_t) + 2 * sizeof(int32_t) 30 + EFFECT_STRING_LEN_MAX; 31 32 static const int BASSBOOST_PARAM_SIZE_MAX = sizeof(effect_param_t) + 2 * sizeof(int32_t); 33 34 static const int VIRTUALIZER_PARAM_SIZE_MAX = sizeof(effect_param_t) + 2 * sizeof(int32_t); 35 36 static const int ENVREVERB_PARAM_SIZE_MAX_SINGLE = sizeof(effect_param_t) + 2 * sizeof(int32_t); 37 38 static const int ENVREVERB_PARAM_SIZE_MAX_ALL = sizeof(effect_param_t) + sizeof(int32_t) 39 + sizeof(s_reverb_settings); 40 41 static const int PRESETREVERB_PARAM_SIZE_MAX = sizeof(effect_param_t) + 2 * sizeof(int32_t); 42 43 static inline SLuint32 KEY_FROM_GUID(SLInterfaceID pUuid) { 44 return pUuid->time_low; 45 } 46 47 48 //----------------------------------------------------------------------------- 49 uint32_t eq_paramSize(int32_t param) { 50 uint32_t size; 51 52 switch (param) { 53 case EQ_PARAM_NUM_BANDS: 54 case EQ_PARAM_LEVEL_RANGE: 55 case EQ_PARAM_CUR_PRESET: 56 case EQ_PARAM_GET_NUM_OF_PRESETS: 57 size = sizeof(int32_t); 58 break; 59 case EQ_PARAM_BAND_LEVEL: 60 case EQ_PARAM_CENTER_FREQ: 61 case EQ_PARAM_BAND_FREQ_RANGE: 62 case EQ_PARAM_GET_BAND: 63 case EQ_PARAM_GET_PRESET_NAME: 64 size = 2 * sizeof(int32_t); 65 break; 66 default: 67 size = 2 * sizeof(int32_t); 68 SL_LOGE("Trying to use an unknown EQ parameter %d", param); 69 break; 70 } 71 return size; 72 } 73 74 uint32_t eq_valueSize(int32_t param) { 75 uint32_t size; 76 77 switch (param) { 78 case EQ_PARAM_NUM_BANDS: 79 case EQ_PARAM_CUR_PRESET: 80 case EQ_PARAM_GET_NUM_OF_PRESETS: 81 case EQ_PARAM_BAND_LEVEL: 82 case EQ_PARAM_GET_BAND: 83 size = sizeof(int16_t); 84 break; 85 case EQ_PARAM_LEVEL_RANGE: 86 size = 2 * sizeof(int16_t); 87 break; 88 case EQ_PARAM_CENTER_FREQ: 89 size = sizeof(int32_t); 90 break; 91 case EQ_PARAM_BAND_FREQ_RANGE: 92 size = 2 * sizeof(int32_t); 93 break; 94 case EQ_PARAM_GET_PRESET_NAME: 95 size = EFFECT_STRING_LEN_MAX; 96 break; 97 default: 98 size = sizeof(int32_t); 99 SL_LOGE("Trying to access an unknown EQ parameter %d", param); 100 break; 101 } 102 return size; 103 } 104 105 //----------------------------------------------------------------------------- 106 /** 107 * returns the size in bytes of the value of each bass boost parameter 108 */ 109 uint32_t bb_valueSize(int32_t param) { 110 uint32_t size; 111 112 switch (param) { 113 case BASSBOOST_PARAM_STRENGTH_SUPPORTED: 114 size = sizeof(int32_t); 115 break; 116 case BASSBOOST_PARAM_STRENGTH: 117 size = sizeof(int16_t); 118 break; 119 default: 120 size = sizeof(int32_t); 121 SL_LOGE("Trying to access an unknown BassBoost parameter %d", param); 122 break; 123 } 124 125 return size; 126 } 127 128 //----------------------------------------------------------------------------- 129 /** 130 * returns the size in bytes of the value of each virtualizer parameter 131 */ 132 uint32_t virt_valueSize(int32_t param) { 133 uint32_t size; 134 135 switch (param) { 136 case VIRTUALIZER_PARAM_STRENGTH_SUPPORTED: 137 size = sizeof(int32_t); 138 break; 139 case VIRTUALIZER_PARAM_STRENGTH: 140 size = sizeof(int16_t); 141 break; 142 default: 143 size = sizeof(int32_t); 144 SL_LOGE("Trying to access an unknown Virtualizer parameter %d", param); 145 break; 146 } 147 148 return size; 149 } 150 151 //----------------------------------------------------------------------------- 152 /** 153 * returns the size in bytes of the value of each environmental reverb parameter 154 */ 155 uint32_t erev_valueSize(int32_t param) { 156 uint32_t size; 157 158 switch (param) { 159 case REVERB_PARAM_ROOM_LEVEL: 160 case REVERB_PARAM_ROOM_HF_LEVEL: 161 case REVERB_PARAM_REFLECTIONS_LEVEL: 162 case REVERB_PARAM_REVERB_LEVEL: 163 size = sizeof(int16_t); // millibel 164 break; 165 case REVERB_PARAM_DECAY_TIME: 166 case REVERB_PARAM_REFLECTIONS_DELAY: 167 case REVERB_PARAM_REVERB_DELAY: 168 size = sizeof(uint32_t); // milliseconds 169 break; 170 case REVERB_PARAM_DECAY_HF_RATIO: 171 case REVERB_PARAM_DIFFUSION: 172 case REVERB_PARAM_DENSITY: 173 size = sizeof(int16_t); // permille 174 break; 175 case REVERB_PARAM_PROPERTIES: 176 size = sizeof(s_reverb_settings); // struct of all reverb properties 177 break; 178 default: 179 size = sizeof(int32_t); 180 SL_LOGE("Trying to access an unknown Environmental Reverb parameter %d", param); 181 break; 182 } 183 184 return size; 185 } 186 187 //----------------------------------------------------------------------------- 188 android::status_t android_eq_getParam(android::sp<android::AudioEffect> pFx, 189 int32_t param, int32_t param2, void *pValue) 190 { 191 android::status_t status; 192 uint32_t buf32[(EQUALIZER_PARAM_SIZE_MAX - 1) / sizeof(uint32_t) + 1]; 193 effect_param_t *p = (effect_param_t *)buf32; 194 195 p->psize = eq_paramSize(param); 196 *(int32_t *)p->data = param; 197 if (p->psize == 2 * sizeof(int32_t)) { 198 *((int32_t *)p->data + 1) = param2; 199 } 200 p->vsize = eq_valueSize(param); 201 status = pFx->getParameter(p); 202 if (android::NO_ERROR == status) { 203 status = p->status; 204 if (android::NO_ERROR == status) { 205 memcpy(pValue, p->data + p->psize, p->vsize); 206 } 207 } 208 209 return status; 210 } 211 212 213 //----------------------------------------------------------------------------- 214 android::status_t android_eq_setParam(android::sp<android::AudioEffect> pFx, 215 int32_t param, int32_t param2, void *pValue) 216 { 217 android::status_t status; 218 uint32_t buf32[(EQUALIZER_PARAM_SIZE_MAX - 1) / sizeof(uint32_t) + 1]; 219 effect_param_t *p = (effect_param_t *)buf32; 220 221 p->psize = eq_paramSize(param); 222 *(int32_t *)p->data = param; 223 if (p->psize == 2 * sizeof(int32_t)) { 224 *((int32_t *)p->data + 1) = param2; 225 } 226 p->vsize = eq_valueSize(param); 227 memcpy(p->data + p->psize, pValue, p->vsize); 228 status = pFx->setParameter(p); 229 if (android::NO_ERROR == status) { 230 status = p->status; 231 } 232 233 return status; 234 } 235 236 //----------------------------------------------------------------------------- 237 android::status_t android_bb_setParam(android::sp<android::AudioEffect> pFx, 238 int32_t param, void *pValue) { 239 240 return android_fx_setParam(pFx, param, BASSBOOST_PARAM_SIZE_MAX, 241 pValue, bb_valueSize(param)); 242 } 243 244 //----------------------------------------------------------------------------- 245 android::status_t android_bb_getParam(android::sp<android::AudioEffect> pFx, 246 int32_t param, void *pValue) { 247 248 return android_fx_getParam(pFx, param, BASSBOOST_PARAM_SIZE_MAX, 249 pValue, bb_valueSize(param)); 250 } 251 252 //----------------------------------------------------------------------------- 253 void android_bb_init(int sessionId, IBassBoost* ibb) { 254 SL_LOGV("session %d", sessionId); 255 256 if (!android_fx_initEffectObj(sessionId, ibb->mBassBoostEffect, 257 &ibb->mBassBoostDescriptor.type)) 258 { 259 SL_LOGE("BassBoost effect initialization failed"); 260 return; 261 } 262 263 // initialize strength 264 int16_t strength; 265 if (android::NO_ERROR == android_bb_getParam(ibb->mBassBoostEffect, 266 BASSBOOST_PARAM_STRENGTH, &strength)) { 267 ibb->mStrength = (SLpermille) strength; 268 } 269 } 270 271 272 //----------------------------------------------------------------------------- 273 void android_eq_init(int sessionId, IEqualizer* ieq) { 274 SL_LOGV("android_eq_init on session %d", sessionId); 275 276 if (!android_fx_initEffectObj(sessionId, ieq->mEqEffect, &ieq->mEqDescriptor.type)) { 277 SL_LOGE("Equalizer effect initialization failed"); 278 return; 279 } 280 281 // initialize number of bands, band level range, and number of presets 282 uint16_t num = 0; 283 if (android::NO_ERROR == android_eq_getParam(ieq->mEqEffect, EQ_PARAM_NUM_BANDS, 0, &num)) { 284 ieq->mNumBands = num; 285 } 286 int16_t range[2] = {0, 0}; 287 if (android::NO_ERROR == android_eq_getParam(ieq->mEqEffect, EQ_PARAM_LEVEL_RANGE, 0, range)) { 288 ieq->mBandLevelRangeMin = range[0]; 289 ieq->mBandLevelRangeMax = range[1]; 290 } 291 292 SL_LOGV(" EQ init: num bands = %u, band range=[%d %d]mB", num, range[0], range[1]); 293 294 // FIXME don't store presets names, they can be queried each time they're needed 295 // initialize preset number and names, store in IEngine 296 uint16_t numPresets = 0; 297 if (android::NO_ERROR == android_eq_getParam(ieq->mEqEffect, 298 EQ_PARAM_GET_NUM_OF_PRESETS, 0, &numPresets)) { 299 ieq->mThis->mEngine->mEqNumPresets = numPresets; 300 ieq->mNumPresets = numPresets; 301 } 302 303 object_lock_exclusive(&ieq->mThis->mEngine->mObject); 304 char name[EFFECT_STRING_LEN_MAX]; 305 if ((0 < numPresets) && (NULL == ieq->mThis->mEngine->mEqPresetNames)) { 306 ieq->mThis->mEngine->mEqPresetNames = (char **)new char *[numPresets]; 307 for(uint32_t i = 0 ; i < numPresets ; i++) { 308 if (android::NO_ERROR == android_eq_getParam(ieq->mEqEffect, 309 EQ_PARAM_GET_PRESET_NAME, i, name)) { 310 ieq->mThis->mEngine->mEqPresetNames[i] = new char[strlen(name) + 1]; 311 strcpy(ieq->mThis->mEngine->mEqPresetNames[i], name); 312 SL_LOGV(" EQ init: presets = %u is %s", i, ieq->mThis->mEngine->mEqPresetNames[i]); 313 } 314 } 315 } 316 object_unlock_exclusive(&ieq->mThis->mEngine->mObject); 317 318 } 319 320 321 //----------------------------------------------------------------------------- 322 void android_virt_init(int sessionId, IVirtualizer* ivi) { 323 SL_LOGV("android_virt_init on session %d", sessionId); 324 325 if (!android_fx_initEffectObj(sessionId, ivi->mVirtualizerEffect, 326 &ivi->mVirtualizerDescriptor.type)) { 327 SL_LOGE("Virtualizer effect initialization failed"); 328 return; 329 } 330 331 // initialize strength 332 int16_t strength; 333 if (android::NO_ERROR == android_virt_getParam(ivi->mVirtualizerEffect, 334 VIRTUALIZER_PARAM_STRENGTH, &strength)) { 335 ivi->mStrength = (SLpermille) strength; 336 } 337 } 338 339 //----------------------------------------------------------------------------- 340 android::status_t android_virt_setParam(android::sp<android::AudioEffect> pFx, 341 int32_t param, void *pValue) { 342 343 return android_fx_setParam(pFx, param, VIRTUALIZER_PARAM_SIZE_MAX, 344 pValue, virt_valueSize(param)); 345 } 346 347 //----------------------------------------------------------------------------- 348 android::status_t android_virt_getParam(android::sp<android::AudioEffect> pFx, 349 int32_t param, void *pValue) { 350 351 return android_fx_getParam(pFx, param, VIRTUALIZER_PARAM_SIZE_MAX, 352 pValue, virt_valueSize(param)); 353 } 354 355 356 //----------------------------------------------------------------------------- 357 void android_prev_init(IPresetReverb* ipr) { 358 SL_LOGV("session is implicitly %d (aux effect)", AUDIO_SESSION_OUTPUT_MIX); 359 360 if (!android_fx_initEffectObj(AUDIO_SESSION_OUTPUT_MIX /*sessionId*/, 361 ipr->mPresetReverbEffect, &ipr->mPresetReverbDescriptor.type)) { 362 SL_LOGE("PresetReverb effect initialization failed"); 363 return; 364 } 365 366 // initialize preset 367 uint16_t preset; 368 if (android::NO_ERROR == android_prev_getPreset(ipr->mPresetReverbEffect, &preset)) { 369 ipr->mPreset = preset; 370 // enable the effect is it has a effective preset loaded 371 ipr->mPresetReverbEffect->setEnabled(SL_REVERBPRESET_NONE != preset); 372 } 373 } 374 375 //----------------------------------------------------------------------------- 376 android::status_t android_prev_setPreset(android::sp<android::AudioEffect> pFx, uint16_t preset) { 377 android::status_t status = android_fx_setParam(pFx, REVERB_PARAM_PRESET, 378 PRESETREVERB_PARAM_SIZE_MAX, &preset, sizeof(uint16_t)); 379 // enable the effect if the preset is different from SL_REVERBPRESET_NONE 380 pFx->setEnabled(SL_REVERBPRESET_NONE != preset); 381 return status; 382 } 383 384 //----------------------------------------------------------------------------- 385 android::status_t android_prev_getPreset(android::sp<android::AudioEffect> pFx, uint16_t* preset) { 386 return android_fx_getParam(pFx, REVERB_PARAM_PRESET, PRESETREVERB_PARAM_SIZE_MAX, preset, 387 sizeof(uint16_t)); 388 } 389 390 391 //----------------------------------------------------------------------------- 392 void android_erev_init(IEnvironmentalReverb* ier) { 393 SL_LOGV("session is implicitly %d (aux effect)", AUDIO_SESSION_OUTPUT_MIX); 394 395 if (!android_fx_initEffectObj(AUDIO_SESSION_OUTPUT_MIX /*sessionId*/, 396 ier->mEnvironmentalReverbEffect, &ier->mEnvironmentalReverbDescriptor.type)) { 397 SL_LOGE("EnvironmentalReverb effect initialization failed"); 398 return; 399 } 400 401 // enable env reverb: other SL ES effects have an explicit SetEnabled() function, and the 402 // preset reverb state depends on the selected preset. 403 ier->mEnvironmentalReverbEffect->setEnabled(true); 404 405 // initialize reverb properties 406 SLEnvironmentalReverbSettings properties; 407 if (android::NO_ERROR == android_erev_getParam(ier->mEnvironmentalReverbEffect, 408 REVERB_PARAM_PROPERTIES, &properties)) { 409 ier->mProperties = properties; 410 } 411 } 412 413 //----------------------------------------------------------------------------- 414 android::status_t android_erev_setParam(android::sp<android::AudioEffect> pFx, 415 int32_t param, void *pValue) { 416 417 // given the size difference between a single reverb property and the whole set of reverb 418 // properties, select which max size to pass to avoid allocating too much memory 419 if (param == REVERB_PARAM_PROPERTIES) { 420 return android_fx_setParam(pFx, param, ENVREVERB_PARAM_SIZE_MAX_ALL, 421 pValue, erev_valueSize(param)); 422 } else { 423 return android_fx_setParam(pFx, param, ENVREVERB_PARAM_SIZE_MAX_SINGLE, 424 pValue, erev_valueSize(param)); 425 } 426 } 427 428 //----------------------------------------------------------------------------- 429 android::status_t android_erev_getParam(android::sp<android::AudioEffect> pFx, 430 int32_t param, void *pValue) { 431 432 // given the size difference between a single reverb property and the whole set of reverb 433 // properties, select which max size to pass to avoid allocating too much memory 434 if (param == REVERB_PARAM_PROPERTIES) { 435 return android_fx_getParam(pFx, param, ENVREVERB_PARAM_SIZE_MAX_ALL, 436 pValue, erev_valueSize(param)); 437 } else { 438 return android_fx_getParam(pFx, param, ENVREVERB_PARAM_SIZE_MAX_SINGLE, 439 pValue, erev_valueSize(param)); 440 } 441 } 442 443 444 //----------------------------------------------------------------------------- 445 android::status_t android_fxSend_attach(CAudioPlayer* ap, bool attach, 446 android::sp<android::AudioEffect> pFx, SLmillibel sendLevel) { 447 448 if (pFx == 0) { 449 return android::INVALID_OPERATION; 450 } 451 452 // There are 3 cases: 453 // mAPlayer != 0 && mAudioTrack == 0 means playing decoded audio 454 // mAPlayer == 0 && mAudioTrack != 0 means playing PCM audio 455 // mAPlayer == 0 && mAudioTrack == 0 means player not fully configured yet 456 // The asserts document and verify this. 457 if (ap->mAPlayer != 0) { 458 assert(ap->mAudioTrack == 0); 459 if (attach) { 460 ap->mAPlayer->attachAuxEffect(pFx->id()); 461 ap->mAPlayer->setAuxEffectSendLevel( sles_to_android_amplification(sendLevel) ); 462 } else { 463 ap->mAPlayer->attachAuxEffect(0); 464 } 465 return android::NO_ERROR; 466 } 467 468 if (ap->mAudioTrack == 0) { 469 // the player doesn't have an AudioTrack at the moment, so store this info to use it 470 // when the AudioTrack becomes available 471 if (attach) { 472 ap->mAuxEffect = pFx; 473 } else { 474 ap->mAuxEffect.clear(); 475 } 476 // we keep track of the send level, independently of the current audio player level 477 ap->mAuxSendLevel = sendLevel - ap->mVolume.mLevel; 478 return android::NO_ERROR; 479 } 480 481 if (attach) { 482 android::status_t status = ap->mAudioTrack->attachAuxEffect(pFx->id()); 483 //SL_LOGV("attachAuxEffect(%d) returned %d", pFx->id(), status); 484 if (android::NO_ERROR == status) { 485 status = 486 ap->mAudioTrack->setAuxEffectSendLevel( sles_to_android_amplification(sendLevel) ); 487 } 488 return status; 489 } else { 490 return ap->mAudioTrack->attachAuxEffect(0); 491 } 492 } 493 494 //----------------------------------------------------------------------------- 495 /** 496 * pre-condition: 497 * ap != NULL 498 * ap->mOutputMix != NULL 499 */ 500 SLresult android_fxSend_attachToAux(CAudioPlayer* ap, SLInterfaceID pUuid, SLboolean attach, 501 SLmillibel sendLevel) { 502 COutputMix *outputMix = CAudioPlayer_GetOutputMix(ap); 503 ssize_t index = outputMix->mAndroidEffect.mEffects->indexOfKey(KEY_FROM_GUID(pUuid)); 504 505 if (0 > index) { 506 SL_LOGE("invalid effect ID: no such effect attached to the OutputMix"); 507 return SL_RESULT_PARAMETER_INVALID; 508 } 509 510 android::AudioEffect* pFx = outputMix->mAndroidEffect.mEffects->valueAt(index); 511 if (NULL == pFx) { 512 return SL_RESULT_RESOURCE_ERROR; 513 } 514 if (android::NO_ERROR == android_fxSend_attach( ap, (bool) attach, pFx, sendLevel) ) { 515 return SL_RESULT_SUCCESS; 516 } else { 517 return SL_RESULT_RESOURCE_ERROR; 518 } 519 520 } 521 522 //----------------------------------------------------------------------------- 523 android::status_t android_fxSend_setSendLevel(CAudioPlayer* ap, SLmillibel sendLevel) { 524 // we keep track of the send level, independently of the current audio player level 525 ap->mAuxSendLevel = sendLevel - ap->mVolume.mLevel; 526 527 if (ap->mAPlayer != 0) { 528 assert(ap->mAudioTrack == 0); 529 ap->mAPlayer->setAuxEffectSendLevel( sles_to_android_amplification(sendLevel) ); 530 return android::NO_ERROR; 531 } 532 533 if (ap->mAudioTrack == 0) { 534 return android::NO_ERROR; 535 } 536 537 return ap->mAudioTrack->setAuxEffectSendLevel( sles_to_android_amplification(sendLevel) ); 538 } 539 540 //----------------------------------------------------------------------------- 541 android::status_t android_fx_setParam(android::sp<android::AudioEffect> pFx, 542 int32_t param, uint32_t paramSizeMax, void *pValue, uint32_t valueSize) 543 { 544 545 android::status_t status; 546 uint32_t buf32[(paramSizeMax - 1) / sizeof(uint32_t) + 1]; 547 effect_param_t *p = (effect_param_t *)buf32; 548 549 p->psize = sizeof(int32_t); 550 *(int32_t *)p->data = param; 551 p->vsize = valueSize; 552 memcpy(p->data + p->psize, pValue, p->vsize); 553 status = pFx->setParameter(p); 554 if (android::NO_ERROR == status) { 555 status = p->status; 556 } 557 return status; 558 } 559 560 561 //----------------------------------------------------------------------------- 562 android::status_t android_fx_getParam(android::sp<android::AudioEffect> pFx, 563 int32_t param, uint32_t paramSizeMax, void *pValue, uint32_t valueSize) 564 { 565 android::status_t status; 566 uint32_t buf32[(paramSizeMax - 1) / sizeof(uint32_t) + 1]; 567 effect_param_t *p = (effect_param_t *)buf32; 568 569 p->psize = sizeof(int32_t); 570 *(int32_t *)p->data = param; 571 p->vsize = valueSize; 572 status = pFx->getParameter(p); 573 if (android::NO_ERROR == status) { 574 status = p->status; 575 if (android::NO_ERROR == status) { 576 memcpy(pValue, p->data + p->psize, p->vsize); 577 } 578 } 579 580 return status; 581 } 582 583 584 //----------------------------------------------------------------------------- 585 SLresult android_fx_statusToResult(android::status_t status) { 586 587 if ((android::INVALID_OPERATION == status) || (android::DEAD_OBJECT == status)) { 588 return SL_RESULT_CONTROL_LOST; 589 } else { 590 return SL_RESULT_SUCCESS; 591 } 592 } 593 594 595 //----------------------------------------------------------------------------- 596 bool android_fx_initEffectObj(int sessionId, android::sp<android::AudioEffect>& effect, 597 const effect_uuid_t *type) { 598 //SL_LOGV("android_fx_initEffectObj on session %d", sessionId); 599 600 effect = new android::AudioEffect(type, EFFECT_UUID_NULL, 601 0,// priority 602 0,// effect callback 603 0,// callback data 604 sessionId,// session ID 605 0 );// output 606 607 android::status_t status = effect->initCheck(); 608 if (android::NO_ERROR != status) { 609 effect.clear(); 610 SL_LOGE("Effect initCheck() returned %d", status); 611 return false; 612 } 613 614 return true; 615 } 616 617 618 //----------------------------------------------------------------------------- 619 bool android_fx_initEffectDescriptor(const SLInterfaceID effectId, 620 effect_descriptor_t* fxDescrLoc) { 621 uint32_t numEffects = 0; 622 effect_descriptor_t descriptor; 623 bool foundEffect = false; 624 625 // any effects? 626 android::status_t res = android::AudioEffect::queryNumberEffects(&numEffects); 627 if (android::NO_ERROR != res) { 628 SL_LOGE("unable to find any effects."); 629 goto effectError; 630 } 631 632 // request effect in the effects? 633 for (uint32_t i=0 ; i < numEffects ; i++) { 634 res = android::AudioEffect::queryEffect(i, &descriptor); 635 if ((android::NO_ERROR == res) && 636 (0 == memcmp(effectId, &descriptor.type, sizeof(effect_uuid_t)))) { 637 SL_LOGV("found effect %d %s", i, descriptor.name); 638 foundEffect = true; 639 break; 640 } 641 } 642 if (foundEffect) { 643 memcpy(fxDescrLoc, &descriptor, sizeof(effect_descriptor_t)); 644 } else { 645 SL_LOGE("unable to find an implementation for the requested effect."); 646 goto effectError; 647 } 648 649 return true; 650 651 effectError: 652 // the requested effect wasn't found 653 memset(fxDescrLoc, 0, sizeof(effect_descriptor_t)); 654 655 return false; 656 } 657 658 //----------------------------------------------------------------------------- 659 SLresult android_genericFx_queryNumEffects(SLuint32 *pNumSupportedAudioEffects) { 660 661 if (NULL == pNumSupportedAudioEffects) { 662 return SL_RESULT_PARAMETER_INVALID; 663 } 664 665 android::status_t status = 666 android::AudioEffect::queryNumberEffects((uint32_t*)pNumSupportedAudioEffects); 667 668 SLresult result = SL_RESULT_SUCCESS; 669 switch(status) { 670 case android::NO_ERROR: 671 result = SL_RESULT_SUCCESS; 672 break; 673 case android::PERMISSION_DENIED: 674 result = SL_RESULT_PERMISSION_DENIED; 675 break; 676 case android::NO_INIT: 677 result = SL_RESULT_RESOURCE_ERROR; 678 break; 679 case android::BAD_VALUE: 680 result = SL_RESULT_PARAMETER_INVALID; 681 break; 682 default: 683 result = SL_RESULT_INTERNAL_ERROR; 684 SL_LOGE("received invalid status %d from AudioEffect::queryNumberEffects()", status); 685 break; 686 } 687 return result; 688 } 689 690 691 //----------------------------------------------------------------------------- 692 SLresult android_genericFx_queryEffect(SLuint32 index, effect_descriptor_t* pDescriptor) { 693 694 if (NULL == pDescriptor) { 695 return SL_RESULT_PARAMETER_INVALID; 696 } 697 698 android::status_t status = 699 android::AudioEffect::queryEffect(index, pDescriptor); 700 701 SLresult result = SL_RESULT_SUCCESS; 702 if (android::NO_ERROR != status) { 703 switch(status) { 704 case android::PERMISSION_DENIED: 705 result = SL_RESULT_PERMISSION_DENIED; 706 break; 707 case android::NO_INIT: 708 case android::INVALID_OPERATION: 709 result = SL_RESULT_RESOURCE_ERROR; 710 break; 711 case android::BAD_VALUE: 712 result = SL_RESULT_PARAMETER_INVALID; 713 break; 714 default: 715 result = SL_RESULT_INTERNAL_ERROR; 716 SL_LOGE("received invalid status %d from AudioEffect::queryNumberEffects()", status); 717 break; 718 } 719 // an error occurred, reset the effect descriptor 720 memset(pDescriptor, 0, sizeof(effect_descriptor_t)); 721 } 722 723 return result; 724 } 725 726 727 //----------------------------------------------------------------------------- 728 SLresult android_genericFx_createEffect(IAndroidEffect* iae, SLInterfaceID pUuid, int sessionId) { 729 730 SLresult result = SL_RESULT_SUCCESS; 731 732 // does this effect already exist? 733 if (0 <= iae->mEffects->indexOfKey(KEY_FROM_GUID(pUuid))) { 734 return result; 735 } 736 737 // create new effect 738 android::AudioEffect* pFx = new android::AudioEffect( 739 NULL, // not using type to create effect 740 (const effect_uuid_t*)pUuid, 741 0,// priority 742 0,// effect callback 743 0,// callback data 744 sessionId, 745 0 );// output 746 747 // verify effect was successfully created before storing it 748 android::status_t status = pFx->initCheck(); 749 if (android::NO_ERROR != status) { 750 SL_LOGE("AudioEffect initCheck() returned %d, effect will not be stored", status); 751 delete pFx; 752 result = SL_RESULT_RESOURCE_ERROR; 753 } else { 754 SL_LOGV("AudioEffect successfully created on session %d", sessionId); 755 iae->mEffects->add(KEY_FROM_GUID(pUuid), pFx); 756 } 757 758 return result; 759 } 760 761 762 //----------------------------------------------------------------------------- 763 SLresult android_genericFx_releaseEffect(IAndroidEffect* iae, SLInterfaceID pUuid) { 764 765 ssize_t index = iae->mEffects->indexOfKey(KEY_FROM_GUID(pUuid)); 766 767 if (0 > index) { 768 return SL_RESULT_PARAMETER_INVALID; 769 } else { 770 android::AudioEffect* pFx = iae->mEffects->valueAt(index); 771 delete pFx; 772 iae->mEffects->removeItem(index); 773 return SL_RESULT_SUCCESS; 774 } 775 } 776 777 778 //----------------------------------------------------------------------------- 779 SLresult android_genericFx_setEnabled(IAndroidEffect* iae, SLInterfaceID pUuid, SLboolean enabled) { 780 781 ssize_t index = iae->mEffects->indexOfKey(KEY_FROM_GUID(pUuid)); 782 783 if (0 > index) { 784 return SL_RESULT_PARAMETER_INVALID; 785 } else { 786 android::AudioEffect* pFx = iae->mEffects->valueAt(index); 787 android::status_t status = pFx->setEnabled(SL_BOOLEAN_TRUE == enabled); 788 return android_fx_statusToResult(status); 789 } 790 } 791 792 793 //----------------------------------------------------------------------------- 794 SLresult android_genericFx_isEnabled(IAndroidEffect* iae, SLInterfaceID pUuid, SLboolean *pEnabled) 795 { 796 ssize_t index = iae->mEffects->indexOfKey(KEY_FROM_GUID(pUuid)); 797 798 if (0 > index) { 799 return SL_RESULT_PARAMETER_INVALID; 800 } else { 801 android::AudioEffect* pFx = iae->mEffects->valueAt(index); 802 *pEnabled = (SLboolean) pFx->getEnabled(); 803 return SL_RESULT_SUCCESS; 804 } 805 } 806 807 808 //----------------------------------------------------------------------------- 809 SLresult android_genericFx_sendCommand(IAndroidEffect* iae, SLInterfaceID pUuid, 810 SLuint32 command, SLuint32 commandSize, void* pCommandData, 811 SLuint32 *replySize, void *pReplyData) { 812 813 ssize_t index = iae->mEffects->indexOfKey(KEY_FROM_GUID(pUuid)); 814 815 if (0 > index) { 816 return SL_RESULT_PARAMETER_INVALID; 817 } else { 818 android::AudioEffect* pFx = iae->mEffects->valueAt(index); 819 android::status_t status = pFx->command( 820 (uint32_t) command, 821 (uint32_t) commandSize, 822 pCommandData, 823 (uint32_t*)replySize, 824 pReplyData); 825 if (android::BAD_VALUE == status) { 826 return SL_RESULT_PARAMETER_INVALID; 827 } else { 828 return SL_RESULT_SUCCESS; 829 } 830 } 831 } 832 833 //----------------------------------------------------------------------------- 834 /** 835 * returns true if the given effect id is present in the AndroidEffect interface 836 */ 837 bool android_genericFx_hasEffect(IAndroidEffect* iae, SLInterfaceID pUuid) { 838 return( 0 <= iae->mEffects->indexOfKey(KEY_FROM_GUID(pUuid))); 839 } 840
