Eric Laurent | 2e66a78 | 2012-03-26 10:47:22 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 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 | //#define LOG_NDEBUG 0 |
| 18 | #define LOG_TAG "SoundPool" |
| 19 | #include <utils/Log.h> |
| 20 | |
| 21 | //#define USE_SHARED_MEM_BUFFER |
| 22 | |
Eric Laurent | 2e66a78 | 2012-03-26 10:47:22 -0700 | [diff] [blame] | 23 | #include <media/AudioTrack.h> |
| 24 | #include <media/mediaplayer.h> |
James Dong | 559bf28 | 2012-03-28 10:29:14 -0700 | [diff] [blame] | 25 | #include <media/SoundPool.h> |
Eric Laurent | 2e66a78 | 2012-03-26 10:47:22 -0700 | [diff] [blame] | 26 | #include "SoundPoolThread.h" |
| 27 | |
| 28 | namespace android |
| 29 | { |
| 30 | |
| 31 | int kDefaultBufferCount = 4; |
| 32 | uint32_t kMaxSampleRate = 48000; |
| 33 | uint32_t kDefaultSampleRate = 44100; |
| 34 | uint32_t kDefaultFrameCount = 1200; |
| 35 | |
| 36 | SoundPool::SoundPool(int maxChannels, audio_stream_type_t streamType, int srcQuality) |
| 37 | { |
| 38 | ALOGV("SoundPool constructor: maxChannels=%d, streamType=%d, srcQuality=%d", |
| 39 | maxChannels, streamType, srcQuality); |
| 40 | |
| 41 | // check limits |
| 42 | mMaxChannels = maxChannels; |
| 43 | if (mMaxChannels < 1) { |
| 44 | mMaxChannels = 1; |
| 45 | } |
| 46 | else if (mMaxChannels > 32) { |
| 47 | mMaxChannels = 32; |
| 48 | } |
| 49 | ALOGW_IF(maxChannels != mMaxChannels, "App requested %d channels", maxChannels); |
| 50 | |
| 51 | mQuit = false; |
| 52 | mDecodeThread = 0; |
| 53 | mStreamType = streamType; |
| 54 | mSrcQuality = srcQuality; |
| 55 | mAllocated = 0; |
| 56 | mNextSampleID = 0; |
| 57 | mNextChannelID = 0; |
| 58 | |
| 59 | mCallback = 0; |
| 60 | mUserData = 0; |
| 61 | |
| 62 | mChannelPool = new SoundChannel[mMaxChannels]; |
| 63 | for (int i = 0; i < mMaxChannels; ++i) { |
| 64 | mChannelPool[i].init(this); |
| 65 | mChannels.push_back(&mChannelPool[i]); |
| 66 | } |
| 67 | |
| 68 | // start decode thread |
| 69 | startThreads(); |
| 70 | } |
| 71 | |
| 72 | SoundPool::~SoundPool() |
| 73 | { |
| 74 | ALOGV("SoundPool destructor"); |
| 75 | mDecodeThread->quit(); |
| 76 | quit(); |
| 77 | |
| 78 | Mutex::Autolock lock(&mLock); |
| 79 | |
| 80 | mChannels.clear(); |
| 81 | if (mChannelPool) |
| 82 | delete [] mChannelPool; |
| 83 | // clean up samples |
| 84 | ALOGV("clear samples"); |
| 85 | mSamples.clear(); |
| 86 | |
| 87 | if (mDecodeThread) |
| 88 | delete mDecodeThread; |
| 89 | } |
| 90 | |
| 91 | void SoundPool::addToRestartList(SoundChannel* channel) |
| 92 | { |
| 93 | Mutex::Autolock lock(&mRestartLock); |
| 94 | if (!mQuit) { |
| 95 | mRestart.push_back(channel); |
| 96 | mCondition.signal(); |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | void SoundPool::addToStopList(SoundChannel* channel) |
| 101 | { |
| 102 | Mutex::Autolock lock(&mRestartLock); |
| 103 | if (!mQuit) { |
| 104 | mStop.push_back(channel); |
| 105 | mCondition.signal(); |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | int SoundPool::beginThread(void* arg) |
| 110 | { |
| 111 | SoundPool* p = (SoundPool*)arg; |
| 112 | return p->run(); |
| 113 | } |
| 114 | |
| 115 | int SoundPool::run() |
| 116 | { |
| 117 | mRestartLock.lock(); |
| 118 | while (!mQuit) { |
| 119 | mCondition.wait(mRestartLock); |
| 120 | ALOGV("awake"); |
| 121 | if (mQuit) break; |
| 122 | |
| 123 | while (!mStop.empty()) { |
| 124 | SoundChannel* channel; |
| 125 | ALOGV("Getting channel from stop list"); |
| 126 | List<SoundChannel* >::iterator iter = mStop.begin(); |
| 127 | channel = *iter; |
| 128 | mStop.erase(iter); |
| 129 | mRestartLock.unlock(); |
| 130 | if (channel != 0) { |
| 131 | Mutex::Autolock lock(&mLock); |
| 132 | channel->stop(); |
| 133 | } |
| 134 | mRestartLock.lock(); |
| 135 | if (mQuit) break; |
| 136 | } |
| 137 | |
| 138 | while (!mRestart.empty()) { |
| 139 | SoundChannel* channel; |
| 140 | ALOGV("Getting channel from list"); |
| 141 | List<SoundChannel*>::iterator iter = mRestart.begin(); |
| 142 | channel = *iter; |
| 143 | mRestart.erase(iter); |
| 144 | mRestartLock.unlock(); |
| 145 | if (channel != 0) { |
| 146 | Mutex::Autolock lock(&mLock); |
| 147 | channel->nextEvent(); |
| 148 | } |
| 149 | mRestartLock.lock(); |
| 150 | if (mQuit) break; |
| 151 | } |
| 152 | } |
| 153 | |
| 154 | mStop.clear(); |
| 155 | mRestart.clear(); |
| 156 | mCondition.signal(); |
| 157 | mRestartLock.unlock(); |
| 158 | ALOGV("goodbye"); |
| 159 | return 0; |
| 160 | } |
| 161 | |
| 162 | void SoundPool::quit() |
| 163 | { |
| 164 | mRestartLock.lock(); |
| 165 | mQuit = true; |
| 166 | mCondition.signal(); |
| 167 | mCondition.wait(mRestartLock); |
| 168 | ALOGV("return from quit"); |
| 169 | mRestartLock.unlock(); |
| 170 | } |
| 171 | |
| 172 | bool SoundPool::startThreads() |
| 173 | { |
| 174 | createThreadEtc(beginThread, this, "SoundPool"); |
| 175 | if (mDecodeThread == NULL) |
| 176 | mDecodeThread = new SoundPoolThread(this); |
| 177 | return mDecodeThread != NULL; |
| 178 | } |
| 179 | |
| 180 | SoundChannel* SoundPool::findChannel(int channelID) |
| 181 | { |
| 182 | for (int i = 0; i < mMaxChannels; ++i) { |
| 183 | if (mChannelPool[i].channelID() == channelID) { |
| 184 | return &mChannelPool[i]; |
| 185 | } |
| 186 | } |
| 187 | return NULL; |
| 188 | } |
| 189 | |
| 190 | SoundChannel* SoundPool::findNextChannel(int channelID) |
| 191 | { |
| 192 | for (int i = 0; i < mMaxChannels; ++i) { |
| 193 | if (mChannelPool[i].nextChannelID() == channelID) { |
| 194 | return &mChannelPool[i]; |
| 195 | } |
| 196 | } |
| 197 | return NULL; |
| 198 | } |
| 199 | |
| 200 | int SoundPool::load(const char* path, int priority) |
| 201 | { |
| 202 | ALOGV("load: path=%s, priority=%d", path, priority); |
| 203 | Mutex::Autolock lock(&mLock); |
| 204 | sp<Sample> sample = new Sample(++mNextSampleID, path); |
| 205 | mSamples.add(sample->sampleID(), sample); |
| 206 | doLoad(sample); |
| 207 | return sample->sampleID(); |
| 208 | } |
| 209 | |
| 210 | int SoundPool::load(int fd, int64_t offset, int64_t length, int priority) |
| 211 | { |
| 212 | ALOGV("load: fd=%d, offset=%lld, length=%lld, priority=%d", |
| 213 | fd, offset, length, priority); |
| 214 | Mutex::Autolock lock(&mLock); |
| 215 | sp<Sample> sample = new Sample(++mNextSampleID, fd, offset, length); |
| 216 | mSamples.add(sample->sampleID(), sample); |
| 217 | doLoad(sample); |
| 218 | return sample->sampleID(); |
| 219 | } |
| 220 | |
| 221 | void SoundPool::doLoad(sp<Sample>& sample) |
| 222 | { |
| 223 | ALOGV("doLoad: loading sample sampleID=%d", sample->sampleID()); |
| 224 | sample->startLoad(); |
| 225 | mDecodeThread->loadSample(sample->sampleID()); |
| 226 | } |
| 227 | |
| 228 | bool SoundPool::unload(int sampleID) |
| 229 | { |
| 230 | ALOGV("unload: sampleID=%d", sampleID); |
| 231 | Mutex::Autolock lock(&mLock); |
| 232 | return mSamples.removeItem(sampleID); |
| 233 | } |
| 234 | |
| 235 | int SoundPool::play(int sampleID, float leftVolume, float rightVolume, |
| 236 | int priority, int loop, float rate) |
| 237 | { |
| 238 | ALOGV("play sampleID=%d, leftVolume=%f, rightVolume=%f, priority=%d, loop=%d, rate=%f", |
| 239 | sampleID, leftVolume, rightVolume, priority, loop, rate); |
| 240 | sp<Sample> sample; |
| 241 | SoundChannel* channel; |
| 242 | int channelID; |
| 243 | |
| 244 | Mutex::Autolock lock(&mLock); |
| 245 | |
| 246 | if (mQuit) { |
| 247 | return 0; |
| 248 | } |
| 249 | // is sample ready? |
| 250 | sample = findSample(sampleID); |
| 251 | if ((sample == 0) || (sample->state() != Sample::READY)) { |
| 252 | ALOGW(" sample %d not READY", sampleID); |
| 253 | return 0; |
| 254 | } |
| 255 | |
| 256 | dump(); |
| 257 | |
| 258 | // allocate a channel |
| 259 | channel = allocateChannel_l(priority); |
| 260 | |
| 261 | // no channel allocated - return 0 |
| 262 | if (!channel) { |
| 263 | ALOGV("No channel allocated"); |
| 264 | return 0; |
| 265 | } |
| 266 | |
| 267 | channelID = ++mNextChannelID; |
| 268 | |
| 269 | ALOGV("play channel %p state = %d", channel, channel->state()); |
| 270 | channel->play(sample, channelID, leftVolume, rightVolume, priority, loop, rate); |
| 271 | return channelID; |
| 272 | } |
| 273 | |
| 274 | SoundChannel* SoundPool::allocateChannel_l(int priority) |
| 275 | { |
| 276 | List<SoundChannel*>::iterator iter; |
| 277 | SoundChannel* channel = NULL; |
| 278 | |
| 279 | // allocate a channel |
| 280 | if (!mChannels.empty()) { |
| 281 | iter = mChannels.begin(); |
| 282 | if (priority >= (*iter)->priority()) { |
| 283 | channel = *iter; |
| 284 | mChannels.erase(iter); |
| 285 | ALOGV("Allocated active channel"); |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | // update priority and put it back in the list |
| 290 | if (channel) { |
| 291 | channel->setPriority(priority); |
| 292 | for (iter = mChannels.begin(); iter != mChannels.end(); ++iter) { |
| 293 | if (priority < (*iter)->priority()) { |
| 294 | break; |
| 295 | } |
| 296 | } |
| 297 | mChannels.insert(iter, channel); |
| 298 | } |
| 299 | return channel; |
| 300 | } |
| 301 | |
| 302 | // move a channel from its current position to the front of the list |
| 303 | void SoundPool::moveToFront_l(SoundChannel* channel) |
| 304 | { |
| 305 | for (List<SoundChannel*>::iterator iter = mChannels.begin(); iter != mChannels.end(); ++iter) { |
| 306 | if (*iter == channel) { |
| 307 | mChannels.erase(iter); |
| 308 | mChannels.push_front(channel); |
| 309 | break; |
| 310 | } |
| 311 | } |
| 312 | } |
| 313 | |
| 314 | void SoundPool::pause(int channelID) |
| 315 | { |
| 316 | ALOGV("pause(%d)", channelID); |
| 317 | Mutex::Autolock lock(&mLock); |
| 318 | SoundChannel* channel = findChannel(channelID); |
| 319 | if (channel) { |
| 320 | channel->pause(); |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | void SoundPool::autoPause() |
| 325 | { |
| 326 | ALOGV("autoPause()"); |
| 327 | Mutex::Autolock lock(&mLock); |
| 328 | for (int i = 0; i < mMaxChannels; ++i) { |
| 329 | SoundChannel* channel = &mChannelPool[i]; |
| 330 | channel->autoPause(); |
| 331 | } |
| 332 | } |
| 333 | |
| 334 | void SoundPool::resume(int channelID) |
| 335 | { |
| 336 | ALOGV("resume(%d)", channelID); |
| 337 | Mutex::Autolock lock(&mLock); |
| 338 | SoundChannel* channel = findChannel(channelID); |
| 339 | if (channel) { |
| 340 | channel->resume(); |
| 341 | } |
| 342 | } |
| 343 | |
| 344 | void SoundPool::autoResume() |
| 345 | { |
| 346 | ALOGV("autoResume()"); |
| 347 | Mutex::Autolock lock(&mLock); |
| 348 | for (int i = 0; i < mMaxChannels; ++i) { |
| 349 | SoundChannel* channel = &mChannelPool[i]; |
| 350 | channel->autoResume(); |
| 351 | } |
| 352 | } |
| 353 | |
| 354 | void SoundPool::stop(int channelID) |
| 355 | { |
| 356 | ALOGV("stop(%d)", channelID); |
| 357 | Mutex::Autolock lock(&mLock); |
| 358 | SoundChannel* channel = findChannel(channelID); |
| 359 | if (channel) { |
| 360 | channel->stop(); |
| 361 | } else { |
| 362 | channel = findNextChannel(channelID); |
| 363 | if (channel) |
| 364 | channel->clearNextEvent(); |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | void SoundPool::setVolume(int channelID, float leftVolume, float rightVolume) |
| 369 | { |
| 370 | Mutex::Autolock lock(&mLock); |
| 371 | SoundChannel* channel = findChannel(channelID); |
| 372 | if (channel) { |
| 373 | channel->setVolume(leftVolume, rightVolume); |
| 374 | } |
| 375 | } |
| 376 | |
| 377 | void SoundPool::setPriority(int channelID, int priority) |
| 378 | { |
| 379 | ALOGV("setPriority(%d, %d)", channelID, priority); |
| 380 | Mutex::Autolock lock(&mLock); |
| 381 | SoundChannel* channel = findChannel(channelID); |
| 382 | if (channel) { |
| 383 | channel->setPriority(priority); |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | void SoundPool::setLoop(int channelID, int loop) |
| 388 | { |
| 389 | ALOGV("setLoop(%d, %d)", channelID, loop); |
| 390 | Mutex::Autolock lock(&mLock); |
| 391 | SoundChannel* channel = findChannel(channelID); |
| 392 | if (channel) { |
| 393 | channel->setLoop(loop); |
| 394 | } |
| 395 | } |
| 396 | |
| 397 | void SoundPool::setRate(int channelID, float rate) |
| 398 | { |
| 399 | ALOGV("setRate(%d, %f)", channelID, rate); |
| 400 | Mutex::Autolock lock(&mLock); |
| 401 | SoundChannel* channel = findChannel(channelID); |
| 402 | if (channel) { |
| 403 | channel->setRate(rate); |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | // call with lock held |
| 408 | void SoundPool::done_l(SoundChannel* channel) |
| 409 | { |
| 410 | ALOGV("done_l(%d)", channel->channelID()); |
| 411 | // if "stolen", play next event |
| 412 | if (channel->nextChannelID() != 0) { |
| 413 | ALOGV("add to restart list"); |
| 414 | addToRestartList(channel); |
| 415 | } |
| 416 | |
| 417 | // return to idle state |
| 418 | else { |
| 419 | ALOGV("move to front"); |
| 420 | moveToFront_l(channel); |
| 421 | } |
| 422 | } |
| 423 | |
| 424 | void SoundPool::setCallback(SoundPoolCallback* callback, void* user) |
| 425 | { |
| 426 | Mutex::Autolock lock(&mCallbackLock); |
| 427 | mCallback = callback; |
| 428 | mUserData = user; |
| 429 | } |
| 430 | |
| 431 | void SoundPool::notify(SoundPoolEvent event) |
| 432 | { |
| 433 | Mutex::Autolock lock(&mCallbackLock); |
| 434 | if (mCallback != NULL) { |
| 435 | mCallback(event, this, mUserData); |
| 436 | } |
| 437 | } |
| 438 | |
| 439 | void SoundPool::dump() |
| 440 | { |
| 441 | for (int i = 0; i < mMaxChannels; ++i) { |
| 442 | mChannelPool[i].dump(); |
| 443 | } |
| 444 | } |
| 445 | |
| 446 | |
| 447 | Sample::Sample(int sampleID, const char* url) |
| 448 | { |
| 449 | init(); |
| 450 | mSampleID = sampleID; |
| 451 | mUrl = strdup(url); |
| 452 | ALOGV("create sampleID=%d, url=%s", mSampleID, mUrl); |
| 453 | } |
| 454 | |
| 455 | Sample::Sample(int sampleID, int fd, int64_t offset, int64_t length) |
| 456 | { |
| 457 | init(); |
| 458 | mSampleID = sampleID; |
| 459 | mFd = dup(fd); |
| 460 | mOffset = offset; |
| 461 | mLength = length; |
| 462 | ALOGV("create sampleID=%d, fd=%d, offset=%lld, length=%lld", mSampleID, mFd, mLength, mOffset); |
| 463 | } |
| 464 | |
| 465 | void Sample::init() |
| 466 | { |
| 467 | mData = 0; |
| 468 | mSize = 0; |
| 469 | mRefCount = 0; |
| 470 | mSampleID = 0; |
| 471 | mState = UNLOADED; |
| 472 | mFd = -1; |
| 473 | mOffset = 0; |
| 474 | mLength = 0; |
| 475 | mUrl = 0; |
| 476 | } |
| 477 | |
| 478 | Sample::~Sample() |
| 479 | { |
| 480 | ALOGV("Sample::destructor sampleID=%d, fd=%d", mSampleID, mFd); |
| 481 | if (mFd > 0) { |
| 482 | ALOGV("close(%d)", mFd); |
| 483 | ::close(mFd); |
| 484 | } |
| 485 | mData.clear(); |
Marco Nelissen | a6b47a1 | 2012-11-19 09:49:18 -0800 | [diff] [blame] | 486 | free(mUrl); |
Eric Laurent | 2e66a78 | 2012-03-26 10:47:22 -0700 | [diff] [blame] | 487 | } |
| 488 | |
| 489 | status_t Sample::doLoad() |
| 490 | { |
| 491 | uint32_t sampleRate; |
| 492 | int numChannels; |
| 493 | audio_format_t format; |
| 494 | sp<IMemory> p; |
| 495 | ALOGV("Start decode"); |
| 496 | if (mUrl) { |
| 497 | p = MediaPlayer::decode(mUrl, &sampleRate, &numChannels, &format); |
| 498 | } else { |
| 499 | p = MediaPlayer::decode(mFd, mOffset, mLength, &sampleRate, &numChannels, &format); |
| 500 | ALOGV("close(%d)", mFd); |
| 501 | ::close(mFd); |
| 502 | mFd = -1; |
| 503 | } |
| 504 | if (p == 0) { |
| 505 | ALOGE("Unable to load sample: %s", mUrl); |
| 506 | return -1; |
| 507 | } |
| 508 | ALOGV("pointer = %p, size = %u, sampleRate = %u, numChannels = %d", |
| 509 | p->pointer(), p->size(), sampleRate, numChannels); |
| 510 | |
| 511 | if (sampleRate > kMaxSampleRate) { |
| 512 | ALOGE("Sample rate (%u) out of range", sampleRate); |
| 513 | return - 1; |
| 514 | } |
| 515 | |
| 516 | if ((numChannels < 1) || (numChannels > 2)) { |
| 517 | ALOGE("Sample channel count (%d) out of range", numChannels); |
| 518 | return - 1; |
| 519 | } |
| 520 | |
| 521 | //_dumpBuffer(p->pointer(), p->size()); |
| 522 | uint8_t* q = static_cast<uint8_t*>(p->pointer()) + p->size() - 10; |
| 523 | //_dumpBuffer(q, 10, 10, false); |
| 524 | |
| 525 | mData = p; |
| 526 | mSize = p->size(); |
| 527 | mSampleRate = sampleRate; |
| 528 | mNumChannels = numChannels; |
| 529 | mFormat = format; |
| 530 | mState = READY; |
| 531 | return 0; |
| 532 | } |
| 533 | |
| 534 | |
| 535 | void SoundChannel::init(SoundPool* soundPool) |
| 536 | { |
| 537 | mSoundPool = soundPool; |
| 538 | } |
| 539 | |
| 540 | // call with sound pool lock held |
| 541 | void SoundChannel::play(const sp<Sample>& sample, int nextChannelID, float leftVolume, |
| 542 | float rightVolume, int priority, int loop, float rate) |
| 543 | { |
Glenn Kasten | 2799d74 | 2013-05-30 14:33:29 -0700 | [diff] [blame] | 544 | sp<AudioTrack> oldTrack; |
| 545 | sp<AudioTrack> newTrack; |
Eric Laurent | 2e66a78 | 2012-03-26 10:47:22 -0700 | [diff] [blame] | 546 | status_t status; |
| 547 | |
| 548 | { // scope for the lock |
| 549 | Mutex::Autolock lock(&mLock); |
| 550 | |
| 551 | ALOGV("SoundChannel::play %p: sampleID=%d, channelID=%d, leftVolume=%f, rightVolume=%f," |
| 552 | " priority=%d, loop=%d, rate=%f", |
| 553 | this, sample->sampleID(), nextChannelID, leftVolume, rightVolume, |
| 554 | priority, loop, rate); |
| 555 | |
| 556 | // if not idle, this voice is being stolen |
| 557 | if (mState != IDLE) { |
| 558 | ALOGV("channel %d stolen - event queued for channel %d", channelID(), nextChannelID); |
| 559 | mNextEvent.set(sample, nextChannelID, leftVolume, rightVolume, priority, loop, rate); |
| 560 | stop_l(); |
| 561 | return; |
| 562 | } |
| 563 | |
| 564 | // initialize track |
Glenn Kasten | e33054e | 2012-11-14 12:54:39 -0800 | [diff] [blame] | 565 | size_t afFrameCount; |
Glenn Kasten | 3b16c76 | 2012-11-14 08:44:39 -0800 | [diff] [blame] | 566 | uint32_t afSampleRate; |
Eric Laurent | 2e66a78 | 2012-03-26 10:47:22 -0700 | [diff] [blame] | 567 | audio_stream_type_t streamType = mSoundPool->streamType(); |
| 568 | if (AudioSystem::getOutputFrameCount(&afFrameCount, streamType) != NO_ERROR) { |
| 569 | afFrameCount = kDefaultFrameCount; |
| 570 | } |
| 571 | if (AudioSystem::getOutputSamplingRate(&afSampleRate, streamType) != NO_ERROR) { |
| 572 | afSampleRate = kDefaultSampleRate; |
| 573 | } |
| 574 | int numChannels = sample->numChannels(); |
| 575 | uint32_t sampleRate = uint32_t(float(sample->sampleRate()) * rate + 0.5); |
| 576 | uint32_t totalFrames = (kDefaultBufferCount * afFrameCount * sampleRate) / afSampleRate; |
| 577 | uint32_t bufferFrames = (totalFrames + (kDefaultBufferCount - 1)) / kDefaultBufferCount; |
| 578 | uint32_t frameCount = 0; |
| 579 | |
| 580 | if (loop) { |
| 581 | frameCount = sample->size()/numChannels/ |
| 582 | ((sample->format() == AUDIO_FORMAT_PCM_16_BIT) ? sizeof(int16_t) : sizeof(uint8_t)); |
| 583 | } |
| 584 | |
| 585 | #ifndef USE_SHARED_MEM_BUFFER |
| 586 | // Ensure minimum audio buffer size in case of short looped sample |
| 587 | if(frameCount < totalFrames) { |
| 588 | frameCount = totalFrames; |
| 589 | } |
| 590 | #endif |
| 591 | |
| 592 | // mToggle toggles each time a track is started on a given channel. |
| 593 | // The toggle is concatenated with the SoundChannel address and passed to AudioTrack |
| 594 | // as callback user data. This enables the detection of callbacks received from the old |
| 595 | // audio track while the new one is being started and avoids processing them with |
| 596 | // wrong audio audio buffer size (mAudioBufferSize) |
| 597 | unsigned long toggle = mToggle ^ 1; |
| 598 | void *userData = (void *)((unsigned long)this | toggle); |
| 599 | uint32_t channels = (numChannels == 2) ? |
| 600 | AUDIO_CHANNEL_OUT_STEREO : AUDIO_CHANNEL_OUT_MONO; |
| 601 | |
| 602 | // do not create a new audio track if current track is compatible with sample parameters |
| 603 | #ifdef USE_SHARED_MEM_BUFFER |
| 604 | newTrack = new AudioTrack(streamType, sampleRate, sample->format(), |
Eric Laurent | 0ca3cf9 | 2012-04-18 09:24:29 -0700 | [diff] [blame] | 605 | channels, sample->getIMemory(), AUDIO_OUTPUT_FLAG_NONE, callback, userData); |
Eric Laurent | 2e66a78 | 2012-03-26 10:47:22 -0700 | [diff] [blame] | 606 | #else |
| 607 | newTrack = new AudioTrack(streamType, sampleRate, sample->format(), |
Glenn Kasten | 1477e92 | 2012-05-01 10:59:31 -0700 | [diff] [blame] | 608 | channels, frameCount, AUDIO_OUTPUT_FLAG_FAST, callback, userData, |
Eric Laurent | 2e66a78 | 2012-03-26 10:47:22 -0700 | [diff] [blame] | 609 | bufferFrames); |
| 610 | #endif |
| 611 | oldTrack = mAudioTrack; |
| 612 | status = newTrack->initCheck(); |
| 613 | if (status != NO_ERROR) { |
| 614 | ALOGE("Error creating AudioTrack"); |
| 615 | goto exit; |
| 616 | } |
Glenn Kasten | 2799d74 | 2013-05-30 14:33:29 -0700 | [diff] [blame] | 617 | ALOGV("setVolume %p", newTrack.get()); |
Eric Laurent | 2e66a78 | 2012-03-26 10:47:22 -0700 | [diff] [blame] | 618 | newTrack->setVolume(leftVolume, rightVolume); |
| 619 | newTrack->setLoop(0, frameCount, loop); |
| 620 | |
| 621 | // From now on, AudioTrack callbacks received with previous toggle value will be ignored. |
| 622 | mToggle = toggle; |
| 623 | mAudioTrack = newTrack; |
| 624 | mPos = 0; |
| 625 | mSample = sample; |
| 626 | mChannelID = nextChannelID; |
| 627 | mPriority = priority; |
| 628 | mLoop = loop; |
| 629 | mLeftVolume = leftVolume; |
| 630 | mRightVolume = rightVolume; |
| 631 | mNumChannels = numChannels; |
| 632 | mRate = rate; |
| 633 | clearNextEvent(); |
| 634 | mState = PLAYING; |
| 635 | mAudioTrack->start(); |
| 636 | mAudioBufferSize = newTrack->frameCount()*newTrack->frameSize(); |
| 637 | } |
| 638 | |
| 639 | exit: |
Glenn Kasten | 2799d74 | 2013-05-30 14:33:29 -0700 | [diff] [blame] | 640 | ALOGV("delete oldTrack %p", oldTrack.get()); |
Eric Laurent | 2e66a78 | 2012-03-26 10:47:22 -0700 | [diff] [blame] | 641 | if (status != NO_ERROR) { |
Glenn Kasten | 2799d74 | 2013-05-30 14:33:29 -0700 | [diff] [blame] | 642 | mAudioTrack.clear(); |
Eric Laurent | 2e66a78 | 2012-03-26 10:47:22 -0700 | [diff] [blame] | 643 | } |
| 644 | } |
| 645 | |
| 646 | void SoundChannel::nextEvent() |
| 647 | { |
| 648 | sp<Sample> sample; |
| 649 | int nextChannelID; |
| 650 | float leftVolume; |
| 651 | float rightVolume; |
| 652 | int priority; |
| 653 | int loop; |
| 654 | float rate; |
| 655 | |
| 656 | // check for valid event |
| 657 | { |
| 658 | Mutex::Autolock lock(&mLock); |
| 659 | nextChannelID = mNextEvent.channelID(); |
| 660 | if (nextChannelID == 0) { |
| 661 | ALOGV("stolen channel has no event"); |
| 662 | return; |
| 663 | } |
| 664 | |
| 665 | sample = mNextEvent.sample(); |
| 666 | leftVolume = mNextEvent.leftVolume(); |
| 667 | rightVolume = mNextEvent.rightVolume(); |
| 668 | priority = mNextEvent.priority(); |
| 669 | loop = mNextEvent.loop(); |
| 670 | rate = mNextEvent.rate(); |
| 671 | } |
| 672 | |
| 673 | ALOGV("Starting stolen channel %d -> %d", channelID(), nextChannelID); |
| 674 | play(sample, nextChannelID, leftVolume, rightVolume, priority, loop, rate); |
| 675 | } |
| 676 | |
| 677 | void SoundChannel::callback(int event, void* user, void *info) |
| 678 | { |
| 679 | SoundChannel* channel = static_cast<SoundChannel*>((void *)((unsigned long)user & ~1)); |
| 680 | |
| 681 | channel->process(event, info, (unsigned long)user & 1); |
| 682 | } |
| 683 | |
| 684 | void SoundChannel::process(int event, void *info, unsigned long toggle) |
| 685 | { |
| 686 | //ALOGV("process(%d)", mChannelID); |
| 687 | |
| 688 | Mutex::Autolock lock(&mLock); |
| 689 | |
| 690 | AudioTrack::Buffer* b = NULL; |
| 691 | if (event == AudioTrack::EVENT_MORE_DATA) { |
| 692 | b = static_cast<AudioTrack::Buffer *>(info); |
| 693 | } |
| 694 | |
| 695 | if (mToggle != toggle) { |
| 696 | ALOGV("process wrong toggle %p channel %d", this, mChannelID); |
| 697 | if (b != NULL) { |
| 698 | b->size = 0; |
| 699 | } |
| 700 | return; |
| 701 | } |
| 702 | |
| 703 | sp<Sample> sample = mSample; |
| 704 | |
| 705 | // ALOGV("SoundChannel::process event %d", event); |
| 706 | |
| 707 | if (event == AudioTrack::EVENT_MORE_DATA) { |
| 708 | |
| 709 | // check for stop state |
| 710 | if (b->size == 0) return; |
| 711 | |
| 712 | if (mState == IDLE) { |
| 713 | b->size = 0; |
| 714 | return; |
| 715 | } |
| 716 | |
| 717 | if (sample != 0) { |
| 718 | // fill buffer |
| 719 | uint8_t* q = (uint8_t*) b->i8; |
| 720 | size_t count = 0; |
| 721 | |
| 722 | if (mPos < (int)sample->size()) { |
| 723 | uint8_t* p = sample->data() + mPos; |
| 724 | count = sample->size() - mPos; |
| 725 | if (count > b->size) { |
| 726 | count = b->size; |
| 727 | } |
| 728 | memcpy(q, p, count); |
| 729 | // ALOGV("fill: q=%p, p=%p, mPos=%u, b->size=%u, count=%d", q, p, mPos, b->size, count); |
| 730 | } else if (mPos < mAudioBufferSize) { |
| 731 | count = mAudioBufferSize - mPos; |
| 732 | if (count > b->size) { |
| 733 | count = b->size; |
| 734 | } |
| 735 | memset(q, 0, count); |
| 736 | // ALOGV("fill extra: q=%p, mPos=%u, b->size=%u, count=%d", q, mPos, b->size, count); |
| 737 | } |
| 738 | |
| 739 | mPos += count; |
| 740 | b->size = count; |
| 741 | //ALOGV("buffer=%p, [0]=%d", b->i16, b->i16[0]); |
| 742 | } |
| 743 | } else if (event == AudioTrack::EVENT_UNDERRUN) { |
| 744 | ALOGV("process %p channel %d EVENT_UNDERRUN", this, mChannelID); |
| 745 | mSoundPool->addToStopList(this); |
| 746 | } else if (event == AudioTrack::EVENT_LOOP_END) { |
| 747 | ALOGV("End loop %p channel %d count %d", this, mChannelID, *(int *)info); |
| 748 | } |
| 749 | } |
| 750 | |
| 751 | |
| 752 | // call with lock held |
| 753 | bool SoundChannel::doStop_l() |
| 754 | { |
| 755 | if (mState != IDLE) { |
| 756 | setVolume_l(0, 0); |
| 757 | ALOGV("stop"); |
| 758 | mAudioTrack->stop(); |
| 759 | mSample.clear(); |
| 760 | mState = IDLE; |
| 761 | mPriority = IDLE_PRIORITY; |
| 762 | return true; |
| 763 | } |
| 764 | return false; |
| 765 | } |
| 766 | |
| 767 | // call with lock held and sound pool lock held |
| 768 | void SoundChannel::stop_l() |
| 769 | { |
| 770 | if (doStop_l()) { |
| 771 | mSoundPool->done_l(this); |
| 772 | } |
| 773 | } |
| 774 | |
| 775 | // call with sound pool lock held |
| 776 | void SoundChannel::stop() |
| 777 | { |
| 778 | bool stopped; |
| 779 | { |
| 780 | Mutex::Autolock lock(&mLock); |
| 781 | stopped = doStop_l(); |
| 782 | } |
| 783 | |
| 784 | if (stopped) { |
| 785 | mSoundPool->done_l(this); |
| 786 | } |
| 787 | } |
| 788 | |
| 789 | //FIXME: Pause is a little broken right now |
| 790 | void SoundChannel::pause() |
| 791 | { |
| 792 | Mutex::Autolock lock(&mLock); |
| 793 | if (mState == PLAYING) { |
| 794 | ALOGV("pause track"); |
| 795 | mState = PAUSED; |
| 796 | mAudioTrack->pause(); |
| 797 | } |
| 798 | } |
| 799 | |
| 800 | void SoundChannel::autoPause() |
| 801 | { |
| 802 | Mutex::Autolock lock(&mLock); |
| 803 | if (mState == PLAYING) { |
| 804 | ALOGV("pause track"); |
| 805 | mState = PAUSED; |
| 806 | mAutoPaused = true; |
| 807 | mAudioTrack->pause(); |
| 808 | } |
| 809 | } |
| 810 | |
| 811 | void SoundChannel::resume() |
| 812 | { |
| 813 | Mutex::Autolock lock(&mLock); |
| 814 | if (mState == PAUSED) { |
| 815 | ALOGV("resume track"); |
| 816 | mState = PLAYING; |
| 817 | mAutoPaused = false; |
| 818 | mAudioTrack->start(); |
| 819 | } |
| 820 | } |
| 821 | |
| 822 | void SoundChannel::autoResume() |
| 823 | { |
| 824 | Mutex::Autolock lock(&mLock); |
| 825 | if (mAutoPaused && (mState == PAUSED)) { |
| 826 | ALOGV("resume track"); |
| 827 | mState = PLAYING; |
| 828 | mAutoPaused = false; |
| 829 | mAudioTrack->start(); |
| 830 | } |
| 831 | } |
| 832 | |
| 833 | void SoundChannel::setRate(float rate) |
| 834 | { |
| 835 | Mutex::Autolock lock(&mLock); |
| 836 | if (mAudioTrack != NULL && mSample != 0) { |
| 837 | uint32_t sampleRate = uint32_t(float(mSample->sampleRate()) * rate + 0.5); |
| 838 | mAudioTrack->setSampleRate(sampleRate); |
| 839 | mRate = rate; |
| 840 | } |
| 841 | } |
| 842 | |
| 843 | // call with lock held |
| 844 | void SoundChannel::setVolume_l(float leftVolume, float rightVolume) |
| 845 | { |
| 846 | mLeftVolume = leftVolume; |
| 847 | mRightVolume = rightVolume; |
| 848 | if (mAudioTrack != NULL) |
| 849 | mAudioTrack->setVolume(leftVolume, rightVolume); |
| 850 | } |
| 851 | |
| 852 | void SoundChannel::setVolume(float leftVolume, float rightVolume) |
| 853 | { |
| 854 | Mutex::Autolock lock(&mLock); |
| 855 | setVolume_l(leftVolume, rightVolume); |
| 856 | } |
| 857 | |
| 858 | void SoundChannel::setLoop(int loop) |
| 859 | { |
| 860 | Mutex::Autolock lock(&mLock); |
| 861 | if (mAudioTrack != NULL && mSample != 0) { |
| 862 | uint32_t loopEnd = mSample->size()/mNumChannels/ |
| 863 | ((mSample->format() == AUDIO_FORMAT_PCM_16_BIT) ? sizeof(int16_t) : sizeof(uint8_t)); |
| 864 | mAudioTrack->setLoop(0, loopEnd, loop); |
| 865 | mLoop = loop; |
| 866 | } |
| 867 | } |
| 868 | |
| 869 | SoundChannel::~SoundChannel() |
| 870 | { |
| 871 | ALOGV("SoundChannel destructor %p", this); |
| 872 | { |
| 873 | Mutex::Autolock lock(&mLock); |
| 874 | clearNextEvent(); |
| 875 | doStop_l(); |
| 876 | } |
| 877 | // do not call AudioTrack destructor with mLock held as it will wait for the AudioTrack |
| 878 | // callback thread to exit which may need to execute process() and acquire the mLock. |
Glenn Kasten | 2799d74 | 2013-05-30 14:33:29 -0700 | [diff] [blame] | 879 | mAudioTrack.clear(); |
Eric Laurent | 2e66a78 | 2012-03-26 10:47:22 -0700 | [diff] [blame] | 880 | } |
| 881 | |
| 882 | void SoundChannel::dump() |
| 883 | { |
| 884 | ALOGV("mState = %d mChannelID=%d, mNumChannels=%d, mPos = %d, mPriority=%d, mLoop=%d", |
| 885 | mState, mChannelID, mNumChannels, mPos, mPriority, mLoop); |
| 886 | } |
| 887 | |
| 888 | void SoundEvent::set(const sp<Sample>& sample, int channelID, float leftVolume, |
| 889 | float rightVolume, int priority, int loop, float rate) |
| 890 | { |
| 891 | mSample = sample; |
| 892 | mChannelID = channelID; |
| 893 | mLeftVolume = leftVolume; |
| 894 | mRightVolume = rightVolume; |
| 895 | mPriority = priority; |
| 896 | mLoop = loop; |
| 897 | mRate =rate; |
| 898 | } |
| 899 | |
| 900 | } // end namespace android |