AudioEffect.cpp revision a189a6883ee55cf62da1d7bf5bf5a8ab501938a4
1/* 2** 3** Copyright 2010, 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_NDEBUG 0 20#define LOG_TAG "AudioEffect" 21 22#include <stdint.h> 23#include <sys/types.h> 24#include <limits.h> 25 26#include <private/media/AudioEffectShared.h> 27#include <media/AudioEffect.h> 28 29#include <utils/Log.h> 30#include <binder/IPCThreadState.h> 31 32 33 34namespace android { 35 36// --------------------------------------------------------------------------- 37 38AudioEffect::AudioEffect() 39 : mStatus(NO_INIT) 40{ 41} 42 43 44AudioEffect::AudioEffect(const effect_uuid_t *type, 45 const effect_uuid_t *uuid, 46 int32_t priority, 47 effect_callback_t cbf, 48 void* user, 49 int sessionId, 50 audio_io_handle_t io 51 ) 52 : mStatus(NO_INIT) 53{ 54 mStatus = set(type, uuid, priority, cbf, user, sessionId, io); 55} 56 57AudioEffect::AudioEffect(const char *typeStr, 58 const char *uuidStr, 59 int32_t priority, 60 effect_callback_t cbf, 61 void* user, 62 int sessionId, 63 audio_io_handle_t io 64 ) 65 : mStatus(NO_INIT) 66{ 67 effect_uuid_t type; 68 effect_uuid_t *pType = NULL; 69 effect_uuid_t uuid; 70 effect_uuid_t *pUuid = NULL; 71 72 ALOGV("Constructor string\n - type: %s\n - uuid: %s", typeStr, uuidStr); 73 74 if (typeStr != NULL) { 75 if (stringToGuid(typeStr, &type) == NO_ERROR) { 76 pType = &type; 77 } 78 } 79 80 if (uuidStr != NULL) { 81 if (stringToGuid(uuidStr, &uuid) == NO_ERROR) { 82 pUuid = &uuid; 83 } 84 } 85 86 mStatus = set(pType, pUuid, priority, cbf, user, sessionId, io); 87} 88 89status_t AudioEffect::set(const effect_uuid_t *type, 90 const effect_uuid_t *uuid, 91 int32_t priority, 92 effect_callback_t cbf, 93 void* user, 94 int sessionId, 95 audio_io_handle_t io) 96{ 97 sp<IEffect> iEffect; 98 sp<IMemory> cblk; 99 int enabled; 100 101 ALOGV("set %p mUserData: %p uuid: %p timeLow %08x", this, user, type, type ? type->timeLow : 0); 102 103 if (mIEffect != 0) { 104 ALOGW("Effect already in use"); 105 return INVALID_OPERATION; 106 } 107 108 const sp<IAudioFlinger>& audioFlinger = AudioSystem::get_audio_flinger(); 109 if (audioFlinger == 0) { 110 ALOGE("set(): Could not get audioflinger"); 111 return NO_INIT; 112 } 113 114 if (type == NULL && uuid == NULL) { 115 ALOGW("Must specify at least type or uuid"); 116 return BAD_VALUE; 117 } 118 119 mPriority = priority; 120 mCbf = cbf; 121 mUserData = user; 122 mSessionId = sessionId; 123 124 memset(&mDescriptor, 0, sizeof(effect_descriptor_t)); 125 mDescriptor.type = *(type != NULL ? type : EFFECT_UUID_NULL); 126 mDescriptor.uuid = *(uuid != NULL ? uuid : EFFECT_UUID_NULL); 127 128 mIEffectClient = new EffectClient(this); 129 130 iEffect = audioFlinger->createEffect(getpid(), &mDescriptor, 131 mIEffectClient, priority, io, mSessionId, &mStatus, &mId, &enabled); 132 133 if (iEffect == 0 || (mStatus != NO_ERROR && mStatus != ALREADY_EXISTS)) { 134 ALOGE("set(): AudioFlinger could not create effect, status: %d", mStatus); 135 return mStatus; 136 } 137 138 mEnabled = (volatile int32_t)enabled; 139 140 mIEffect = iEffect; 141 cblk = iEffect->getCblk(); 142 if (cblk == 0) { 143 mStatus = NO_INIT; 144 ALOGE("Could not get control block"); 145 return mStatus; 146 } 147 148 mIEffect = iEffect; 149 mCblkMemory = cblk; 150 mCblk = static_cast<effect_param_cblk_t*>(cblk->pointer()); 151 int bufOffset = ((sizeof(effect_param_cblk_t) - 1) / sizeof(int) + 1) * sizeof(int); 152 mCblk->buffer = (uint8_t *)mCblk + bufOffset; 153 154 iEffect->asBinder()->linkToDeath(mIEffectClient); 155 ALOGV("set() %p OK effect: %s id: %d status %d enabled %d", this, mDescriptor.name, mId, mStatus, mEnabled); 156 157 return mStatus; 158} 159 160 161AudioEffect::~AudioEffect() 162{ 163 ALOGV("Destructor %p", this); 164 165 if (mStatus == NO_ERROR || mStatus == ALREADY_EXISTS) { 166 if (mIEffect != NULL) { 167 mIEffect->disconnect(); 168 mIEffect->asBinder()->unlinkToDeath(mIEffectClient); 169 } 170 IPCThreadState::self()->flushCommands(); 171 } 172 mIEffect.clear(); 173 mIEffectClient.clear(); 174 mCblkMemory.clear(); 175} 176 177 178status_t AudioEffect::initCheck() const 179{ 180 return mStatus; 181} 182 183// ------------------------------------------------------------------------- 184 185effect_descriptor_t AudioEffect::descriptor() const 186{ 187 return mDescriptor; 188} 189 190bool AudioEffect::getEnabled() const 191{ 192 return (mEnabled != 0); 193} 194 195status_t AudioEffect::setEnabled(bool enabled) 196{ 197 if (mStatus != NO_ERROR) { 198 return (mStatus == ALREADY_EXISTS) ? (status_t) INVALID_OPERATION : mStatus; 199 } 200 201 status_t status = NO_ERROR; 202 203 AutoMutex lock(mLock); 204 if (enabled != mEnabled) { 205 if (enabled) { 206 ALOGV("enable %p", this); 207 status = mIEffect->enable(); 208 } else { 209 ALOGV("disable %p", this); 210 status = mIEffect->disable(); 211 } 212 if (status == NO_ERROR) { 213 mEnabled = enabled; 214 } 215 } 216 return status; 217} 218 219status_t AudioEffect::command(uint32_t cmdCode, 220 uint32_t cmdSize, 221 void *cmdData, 222 uint32_t *replySize, 223 void *replyData) 224{ 225 if (mStatus != NO_ERROR && mStatus != ALREADY_EXISTS) { 226 ALOGV("command() bad status %d", mStatus); 227 return mStatus; 228 } 229 230 if (cmdCode == EFFECT_CMD_ENABLE || cmdCode == EFFECT_CMD_DISABLE) { 231 if (mEnabled == (cmdCode == EFFECT_CMD_ENABLE)) { 232 return NO_ERROR; 233 } 234 if (replySize == NULL || *replySize != sizeof(status_t) || replyData == NULL) { 235 return BAD_VALUE; 236 } 237 mLock.lock(); 238 } 239 240 status_t status = mIEffect->command(cmdCode, cmdSize, cmdData, replySize, replyData); 241 242 if (cmdCode == EFFECT_CMD_ENABLE || cmdCode == EFFECT_CMD_DISABLE) { 243 if (status == NO_ERROR) { 244 status = *(status_t *)replyData; 245 } 246 if (status == NO_ERROR) { 247 mEnabled = (cmdCode == EFFECT_CMD_ENABLE); 248 } 249 mLock.unlock(); 250 } 251 252 return status; 253} 254 255 256status_t AudioEffect::setParameter(effect_param_t *param) 257{ 258 if (mStatus != NO_ERROR) { 259 return (mStatus == ALREADY_EXISTS) ? (status_t) INVALID_OPERATION : mStatus; 260 } 261 262 if (param == NULL || param->psize == 0 || param->vsize == 0) { 263 return BAD_VALUE; 264 } 265 266 uint32_t size = sizeof(int); 267 uint32_t psize = ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) + param->vsize; 268 269 ALOGV("setParameter: param: %d, param2: %d", *(int *)param->data, (param->psize == 8) ? *((int *)param->data + 1): -1); 270 271 return mIEffect->command(EFFECT_CMD_SET_PARAM, sizeof (effect_param_t) + psize, param, &size, ¶m->status); 272} 273 274status_t AudioEffect::setParameterDeferred(effect_param_t *param) 275{ 276 if (mStatus != NO_ERROR) { 277 return (mStatus == ALREADY_EXISTS) ? (status_t) INVALID_OPERATION : mStatus; 278 } 279 280 if (param == NULL || param->psize == 0 || param->vsize == 0) { 281 return BAD_VALUE; 282 } 283 284 Mutex::Autolock _l(mCblk->lock); 285 286 int psize = ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) + param->vsize; 287 int size = ((sizeof(effect_param_t) + psize - 1) / sizeof(int) + 1) * sizeof(int); 288 289 if (mCblk->clientIndex + size > EFFECT_PARAM_BUFFER_SIZE) { 290 return NO_MEMORY; 291 } 292 int *p = (int *)(mCblk->buffer + mCblk->clientIndex); 293 *p++ = size; 294 memcpy(p, param, sizeof(effect_param_t) + psize); 295 mCblk->clientIndex += size; 296 297 return NO_ERROR; 298} 299 300status_t AudioEffect::setParameterCommit() 301{ 302 if (mStatus != NO_ERROR) { 303 return (mStatus == ALREADY_EXISTS) ? (status_t) INVALID_OPERATION : mStatus; 304 } 305 306 Mutex::Autolock _l(mCblk->lock); 307 if (mCblk->clientIndex == 0) { 308 return INVALID_OPERATION; 309 } 310 uint32_t size = 0; 311 return mIEffect->command(EFFECT_CMD_SET_PARAM_COMMIT, 0, NULL, &size, NULL); 312} 313 314status_t AudioEffect::getParameter(effect_param_t *param) 315{ 316 if (mStatus != NO_ERROR && mStatus != ALREADY_EXISTS) { 317 return mStatus; 318 } 319 320 if (param == NULL || param->psize == 0 || param->vsize == 0) { 321 return BAD_VALUE; 322 } 323 324 ALOGV("getParameter: param: %d, param2: %d", *(int *)param->data, (param->psize == 8) ? *((int *)param->data + 1): -1); 325 326 uint32_t psize = sizeof(effect_param_t) + ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) + param->vsize; 327 328 return mIEffect->command(EFFECT_CMD_GET_PARAM, sizeof(effect_param_t) + param->psize, param, &psize, param); 329} 330 331 332// ------------------------------------------------------------------------- 333 334void AudioEffect::binderDied() 335{ 336 ALOGW("IEffect died"); 337 mStatus = DEAD_OBJECT; 338 if (mCbf != NULL) { 339 status_t status = DEAD_OBJECT; 340 mCbf(EVENT_ERROR, mUserData, &status); 341 } 342 mIEffect.clear(); 343} 344 345// ------------------------------------------------------------------------- 346 347void AudioEffect::controlStatusChanged(bool controlGranted) 348{ 349 ALOGV("controlStatusChanged %p control %d callback %p mUserData %p", this, controlGranted, mCbf, mUserData); 350 if (controlGranted) { 351 if (mStatus == ALREADY_EXISTS) { 352 mStatus = NO_ERROR; 353 } 354 } else { 355 if (mStatus == NO_ERROR) { 356 mStatus = ALREADY_EXISTS; 357 } 358 } 359 if (mCbf != NULL) { 360 mCbf(EVENT_CONTROL_STATUS_CHANGED, mUserData, &controlGranted); 361 } 362} 363 364void AudioEffect::enableStatusChanged(bool enabled) 365{ 366 ALOGV("enableStatusChanged %p enabled %d mCbf %p", this, enabled, mCbf); 367 if (mStatus == ALREADY_EXISTS) { 368 mEnabled = enabled; 369 if (mCbf != NULL) { 370 mCbf(EVENT_ENABLE_STATUS_CHANGED, mUserData, &enabled); 371 } 372 } 373} 374 375void AudioEffect::commandExecuted(uint32_t cmdCode, 376 uint32_t cmdSize, 377 void *cmdData, 378 uint32_t replySize, 379 void *replyData) 380{ 381 if (cmdData == NULL || replyData == NULL) { 382 return; 383 } 384 385 if (mCbf != NULL && cmdCode == EFFECT_CMD_SET_PARAM) { 386 effect_param_t *cmd = (effect_param_t *)cmdData; 387 cmd->status = *(int32_t *)replyData; 388 mCbf(EVENT_PARAMETER_CHANGED, mUserData, cmd); 389 } 390} 391 392// ------------------------------------------------------------------------- 393 394status_t AudioEffect::queryNumberEffects(uint32_t *numEffects) 395{ 396 const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 397 if (af == 0) return PERMISSION_DENIED; 398 return af->queryNumberEffects(numEffects); 399} 400 401status_t AudioEffect::queryEffect(uint32_t index, effect_descriptor_t *descriptor) 402{ 403 const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 404 if (af == 0) return PERMISSION_DENIED; 405 return af->queryEffect(index, descriptor); 406} 407 408status_t AudioEffect::getEffectDescriptor(const effect_uuid_t *uuid, 409 effect_descriptor_t *descriptor) /*const*/ 410{ 411 const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 412 if (af == 0) return PERMISSION_DENIED; 413 return af->getEffectDescriptor(uuid, descriptor); 414} 415 416 417status_t AudioEffect::queryDefaultPreProcessing(int audioSession, 418 effect_descriptor_t *descriptors, 419 uint32_t *count) 420{ 421 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 422 if (aps == 0) return PERMISSION_DENIED; 423 return aps->queryDefaultPreProcessing(audioSession, descriptors, count); 424} 425// ------------------------------------------------------------------------- 426 427status_t AudioEffect::stringToGuid(const char *str, effect_uuid_t *guid) 428{ 429 if (str == NULL || guid == NULL) { 430 return BAD_VALUE; 431 } 432 433 int tmp[10]; 434 435 if (sscanf(str, "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x", 436 tmp, tmp+1, tmp+2, tmp+3, tmp+4, tmp+5, tmp+6, tmp+7, tmp+8, tmp+9) < 10) { 437 return BAD_VALUE; 438 } 439 guid->timeLow = (uint32_t)tmp[0]; 440 guid->timeMid = (uint16_t)tmp[1]; 441 guid->timeHiAndVersion = (uint16_t)tmp[2]; 442 guid->clockSeq = (uint16_t)tmp[3]; 443 guid->node[0] = (uint8_t)tmp[4]; 444 guid->node[1] = (uint8_t)tmp[5]; 445 guid->node[2] = (uint8_t)tmp[6]; 446 guid->node[3] = (uint8_t)tmp[7]; 447 guid->node[4] = (uint8_t)tmp[8]; 448 guid->node[5] = (uint8_t)tmp[9]; 449 450 return NO_ERROR; 451} 452 453status_t AudioEffect::guidToString(const effect_uuid_t *guid, char *str, size_t maxLen) 454{ 455 if (guid == NULL || str == NULL) { 456 return BAD_VALUE; 457 } 458 459 snprintf(str, maxLen, "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x", 460 guid->timeLow, 461 guid->timeMid, 462 guid->timeHiAndVersion, 463 guid->clockSeq, 464 guid->node[0], 465 guid->node[1], 466 guid->node[2], 467 guid->node[3], 468 guid->node[4], 469 guid->node[5]); 470 471 return NO_ERROR; 472} 473 474 475}; // namespace android 476