The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [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 | |
Eric Laurent | 9648e4b | 2009-05-07 03:14:31 -0700 | [diff] [blame] | 21 | // |
| 22 | #define USE_SHARED_MEM_BUFFER |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 23 | |
| 24 | // XXX needed for timing latency |
| 25 | #include <utils/Timers.h> |
| 26 | |
| 27 | #include <sys/resource.h> |
| 28 | #include <media/AudioTrack.h> |
| 29 | #include <media/mediaplayer.h> |
| 30 | |
| 31 | #include "SoundPool.h" |
| 32 | #include "SoundPoolThread.h" |
| 33 | |
| 34 | namespace android |
| 35 | { |
| 36 | |
| 37 | int kDefaultBufferCount = 4; |
| 38 | uint32_t kMaxSampleRate = 48000; |
| 39 | uint32_t kDefaultSampleRate = 44100; |
| 40 | uint32_t kDefaultFrameCount = 1200; |
| 41 | |
| 42 | SoundPool::SoundPool(jobject soundPoolRef, int maxChannels, int streamType, int srcQuality) |
| 43 | { |
| 44 | LOGV("SoundPool constructor: maxChannels=%d, streamType=%d, srcQuality=%d", |
| 45 | maxChannels, streamType, srcQuality); |
| 46 | |
Dave Sparks | 3c8704b | 2009-05-29 19:12:11 -0700 | [diff] [blame] | 47 | // check limits |
| 48 | mMaxChannels = maxChannels; |
| 49 | if (mMaxChannels < 1) { |
| 50 | mMaxChannels = 1; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 51 | } |
Dave Sparks | 3c8704b | 2009-05-29 19:12:11 -0700 | [diff] [blame] | 52 | else if (mMaxChannels > 32) { |
| 53 | mMaxChannels = 32; |
| 54 | } |
| 55 | LOGW_IF(maxChannels != mMaxChannels, "App requested %d channels", maxChannels); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 56 | |
| 57 | mQuit = false; |
| 58 | mSoundPoolRef = soundPoolRef; |
| 59 | mDecodeThread = 0; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 60 | mStreamType = streamType; |
| 61 | mSrcQuality = srcQuality; |
| 62 | mAllocated = 0; |
| 63 | mNextSampleID = 0; |
| 64 | mNextChannelID = 0; |
| 65 | |
Dave Sparks | 3c8704b | 2009-05-29 19:12:11 -0700 | [diff] [blame] | 66 | mChannelPool = new SoundChannel[mMaxChannels]; |
| 67 | for (int i = 0; i < mMaxChannels; ++i) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 68 | mChannelPool[i].init(this); |
| 69 | mChannels.push_back(&mChannelPool[i]); |
| 70 | } |
| 71 | |
| 72 | // start decode thread |
| 73 | startThreads(); |
| 74 | } |
| 75 | |
| 76 | SoundPool::~SoundPool() |
| 77 | { |
| 78 | LOGV("SoundPool destructor"); |
| 79 | mDecodeThread->quit(); |
| 80 | quit(); |
| 81 | |
| 82 | Mutex::Autolock lock(&mLock); |
| 83 | mChannels.clear(); |
| 84 | if (mChannelPool) |
| 85 | delete [] mChannelPool; |
| 86 | |
| 87 | // clean up samples |
| 88 | LOGV("clear samples"); |
| 89 | mSamples.clear(); |
| 90 | |
| 91 | if (mDecodeThread) |
| 92 | delete mDecodeThread; |
| 93 | } |
| 94 | |
| 95 | void SoundPool::addToRestartList(SoundChannel* channel) |
| 96 | { |
| 97 | Mutex::Autolock lock(&mLock); |
| 98 | mRestart.push_back(channel); |
| 99 | mCondition.signal(); |
| 100 | } |
| 101 | |
| 102 | int SoundPool::beginThread(void* arg) |
| 103 | { |
| 104 | SoundPool* p = (SoundPool*)arg; |
| 105 | return p->run(); |
| 106 | } |
| 107 | |
| 108 | int SoundPool::run() |
| 109 | { |
| 110 | mLock.lock(); |
| 111 | while (!mQuit) { |
| 112 | mCondition.wait(mLock); |
| 113 | LOGV("awake"); |
| 114 | if (mQuit) break; |
| 115 | |
| 116 | while (!mRestart.empty()) { |
| 117 | SoundChannel* channel; |
| 118 | LOGV("Getting channel from list"); |
| 119 | List<SoundChannel*>::iterator iter = mRestart.begin(); |
| 120 | channel = *iter; |
| 121 | mRestart.erase(iter); |
| 122 | if (channel) channel->nextEvent(); |
| 123 | if (mQuit) break; |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | mRestart.clear(); |
| 128 | mCondition.signal(); |
| 129 | mLock.unlock(); |
| 130 | LOGV("goodbye"); |
| 131 | return 0; |
| 132 | } |
| 133 | |
| 134 | void SoundPool::quit() |
| 135 | { |
| 136 | mLock.lock(); |
| 137 | mQuit = true; |
| 138 | mCondition.signal(); |
| 139 | mCondition.wait(mLock); |
| 140 | LOGV("return from quit"); |
| 141 | mLock.unlock(); |
| 142 | } |
| 143 | |
| 144 | bool SoundPool::startThreads() |
| 145 | { |
| 146 | createThread(beginThread, this); |
| 147 | if (mDecodeThread == NULL) |
| 148 | mDecodeThread = new SoundPoolThread(this); |
| 149 | return mDecodeThread != NULL; |
| 150 | } |
| 151 | |
| 152 | SoundChannel* SoundPool::findChannel(int channelID) |
| 153 | { |
| 154 | for (int i = 0; i < mMaxChannels; ++i) { |
| 155 | if (mChannelPool[i].channelID() == channelID) { |
| 156 | return &mChannelPool[i]; |
| 157 | } |
| 158 | } |
| 159 | return NULL; |
| 160 | } |
| 161 | |
| 162 | SoundChannel* SoundPool::findNextChannel(int channelID) |
| 163 | { |
| 164 | for (int i = 0; i < mMaxChannels; ++i) { |
| 165 | if (mChannelPool[i].nextChannelID() == channelID) { |
| 166 | return &mChannelPool[i]; |
| 167 | } |
| 168 | } |
| 169 | return NULL; |
| 170 | } |
| 171 | |
| 172 | int SoundPool::load(const char* path, int priority) |
| 173 | { |
| 174 | LOGV("load: path=%s, priority=%d", path, priority); |
| 175 | Mutex::Autolock lock(&mLock); |
| 176 | sp<Sample> sample = new Sample(++mNextSampleID, path); |
| 177 | mSamples.add(sample->sampleID(), sample); |
| 178 | doLoad(sample); |
| 179 | return sample->sampleID(); |
| 180 | } |
| 181 | |
| 182 | int SoundPool::load(int fd, int64_t offset, int64_t length, int priority) |
| 183 | { |
| 184 | LOGV("load: fd=%d, offset=%lld, length=%lld, priority=%d", |
| 185 | fd, offset, length, priority); |
| 186 | Mutex::Autolock lock(&mLock); |
| 187 | sp<Sample> sample = new Sample(++mNextSampleID, fd, offset, length); |
| 188 | mSamples.add(sample->sampleID(), sample); |
| 189 | doLoad(sample); |
| 190 | return sample->sampleID(); |
| 191 | } |
| 192 | |
| 193 | void SoundPool::doLoad(sp<Sample>& sample) |
| 194 | { |
| 195 | LOGV("doLoad: loading sample sampleID=%d", sample->sampleID()); |
| 196 | sample->startLoad(); |
| 197 | mDecodeThread->loadSample(sample->sampleID()); |
| 198 | } |
| 199 | |
| 200 | bool SoundPool::unload(int sampleID) |
| 201 | { |
| 202 | LOGV("unload: sampleID=%d", sampleID); |
| 203 | Mutex::Autolock lock(&mLock); |
| 204 | return mSamples.removeItem(sampleID); |
| 205 | } |
| 206 | |
| 207 | int SoundPool::play(int sampleID, float leftVolume, float rightVolume, |
| 208 | int priority, int loop, float rate) |
| 209 | { |
| 210 | LOGV("sampleID=%d, leftVolume=%f, rightVolume=%f, priority=%d, loop=%d, rate=%f", |
| 211 | sampleID, leftVolume, rightVolume, priority, loop, rate); |
| 212 | sp<Sample> sample; |
| 213 | SoundChannel* channel; |
| 214 | int channelID; |
| 215 | |
| 216 | // scope for lock |
| 217 | { |
| 218 | Mutex::Autolock lock(&mLock); |
| 219 | |
| 220 | // is sample ready? |
| 221 | sample = findSample(sampleID); |
| 222 | if ((sample == 0) || (sample->state() != Sample::READY)) { |
| 223 | LOGW(" sample %d not READY", sampleID); |
| 224 | return 0; |
| 225 | } |
| 226 | |
| 227 | dump(); |
| 228 | |
| 229 | // allocate a channel |
| 230 | channel = allocateChannel(priority); |
| 231 | |
| 232 | // no channel allocated - return 0 |
| 233 | if (!channel) { |
| 234 | LOGV("No channel allocated"); |
| 235 | return 0; |
| 236 | } |
| 237 | |
| 238 | channelID = ++mNextChannelID; |
| 239 | } |
| 240 | |
| 241 | LOGV("channel state = %d", channel->state()); |
| 242 | channel->play(sample, channelID, leftVolume, rightVolume, priority, loop, rate); |
| 243 | return channelID; |
| 244 | } |
| 245 | |
| 246 | SoundChannel* SoundPool::allocateChannel(int priority) |
| 247 | { |
| 248 | List<SoundChannel*>::iterator iter; |
| 249 | SoundChannel* channel = NULL; |
| 250 | |
| 251 | // allocate a channel |
| 252 | if (!mChannels.empty()) { |
| 253 | iter = mChannels.begin(); |
| 254 | if (priority >= (*iter)->priority()) { |
| 255 | channel = *iter; |
| 256 | mChannels.erase(iter); |
| 257 | LOGV("Allocated active channel"); |
| 258 | } |
| 259 | } |
| 260 | |
| 261 | // update priority and put it back in the list |
| 262 | if (channel) { |
| 263 | channel->setPriority(priority); |
| 264 | for (iter = mChannels.begin(); iter != mChannels.end(); ++iter) { |
| 265 | if (priority < (*iter)->priority()) { |
| 266 | break; |
| 267 | } |
| 268 | } |
| 269 | mChannels.insert(iter, channel); |
| 270 | } |
| 271 | return channel; |
| 272 | } |
| 273 | |
| 274 | // move a channel from its current position to the front of the list |
| 275 | void SoundPool::moveToFront(SoundChannel* channel) |
| 276 | { |
| 277 | for (List<SoundChannel*>::iterator iter = mChannels.begin(); iter != mChannels.end(); ++iter) { |
| 278 | if (*iter == channel) { |
| 279 | mChannels.erase(iter); |
| 280 | mChannels.push_front(channel); |
| 281 | break; |
| 282 | } |
| 283 | } |
| 284 | } |
| 285 | |
| 286 | void SoundPool::pause(int channelID) |
| 287 | { |
| 288 | LOGV("pause(%d)", channelID); |
| 289 | Mutex::Autolock lock(&mLock); |
| 290 | SoundChannel* channel = findChannel(channelID); |
| 291 | if (channel) { |
| 292 | channel->pause(); |
| 293 | } |
| 294 | } |
| 295 | |
| 296 | void SoundPool::resume(int channelID) |
| 297 | { |
| 298 | LOGV("resume(%d)", channelID); |
| 299 | Mutex::Autolock lock(&mLock); |
| 300 | SoundChannel* channel = findChannel(channelID); |
| 301 | if (channel) { |
| 302 | channel->resume(); |
| 303 | } |
| 304 | } |
| 305 | |
| 306 | void SoundPool::stop(int channelID) |
| 307 | { |
| 308 | LOGV("stop(%d)", channelID); |
| 309 | Mutex::Autolock lock(&mLock); |
| 310 | SoundChannel* channel = findChannel(channelID); |
| 311 | if (channel) { |
| 312 | channel->stop(); |
| 313 | } else { |
| 314 | channel = findNextChannel(channelID); |
| 315 | if (channel) |
| 316 | channel->clearNextEvent(); |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | void SoundPool::setVolume(int channelID, float leftVolume, float rightVolume) |
| 321 | { |
| 322 | Mutex::Autolock lock(&mLock); |
| 323 | SoundChannel* channel = findChannel(channelID); |
| 324 | if (channel) { |
| 325 | channel->setVolume(leftVolume, rightVolume); |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | void SoundPool::setPriority(int channelID, int priority) |
| 330 | { |
| 331 | LOGV("setPriority(%d, %d)", channelID, priority); |
| 332 | Mutex::Autolock lock(&mLock); |
| 333 | SoundChannel* channel = findChannel(channelID); |
| 334 | if (channel) { |
| 335 | channel->setPriority(priority); |
| 336 | } |
| 337 | } |
| 338 | |
| 339 | void SoundPool::setLoop(int channelID, int loop) |
| 340 | { |
| 341 | LOGV("setLoop(%d, %d)", channelID, loop); |
| 342 | Mutex::Autolock lock(&mLock); |
| 343 | SoundChannel* channel = findChannel(channelID); |
| 344 | if (channel) { |
| 345 | channel->setLoop(loop); |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | void SoundPool::setRate(int channelID, float rate) |
| 350 | { |
| 351 | LOGV("setRate(%d, %f)", channelID, rate); |
| 352 | Mutex::Autolock lock(&mLock); |
| 353 | SoundChannel* channel = findChannel(channelID); |
| 354 | if (channel) { |
| 355 | channel->setRate(rate); |
| 356 | } |
| 357 | } |
| 358 | |
| 359 | // call with lock held |
| 360 | void SoundPool::done(SoundChannel* channel) |
| 361 | { |
| 362 | LOGV("done(%d)", channel->channelID()); |
| 363 | |
| 364 | // if "stolen", play next event |
| 365 | if (channel->nextChannelID() != 0) { |
| 366 | LOGV("add to restart list"); |
| 367 | addToRestartList(channel); |
| 368 | } |
| 369 | |
| 370 | // return to idle state |
| 371 | else { |
| 372 | LOGV("move to front"); |
| 373 | moveToFront(channel); |
| 374 | } |
| 375 | } |
| 376 | |
| 377 | void SoundPool::dump() |
| 378 | { |
| 379 | for (int i = 0; i < mMaxChannels; ++i) { |
| 380 | mChannelPool[i].dump(); |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | |
| 385 | Sample::Sample(int sampleID, const char* url) |
| 386 | { |
| 387 | init(); |
| 388 | mSampleID = sampleID; |
| 389 | mUrl = strdup(url); |
| 390 | LOGV("create sampleID=%d, url=%s", mSampleID, mUrl); |
| 391 | } |
| 392 | |
| 393 | Sample::Sample(int sampleID, int fd, int64_t offset, int64_t length) |
| 394 | { |
| 395 | init(); |
| 396 | mSampleID = sampleID; |
| 397 | mFd = dup(fd); |
| 398 | mOffset = offset; |
| 399 | mLength = length; |
| 400 | LOGV("create sampleID=%d, fd=%d, offset=%lld, length=%lld", mSampleID, mFd, mLength, mOffset); |
| 401 | } |
| 402 | |
| 403 | void Sample::init() |
| 404 | { |
| 405 | mData = 0; |
| 406 | mSize = 0; |
| 407 | mRefCount = 0; |
| 408 | mSampleID = 0; |
| 409 | mState = UNLOADED; |
| 410 | mFd = -1; |
| 411 | mOffset = 0; |
| 412 | mLength = 0; |
| 413 | mUrl = 0; |
| 414 | } |
| 415 | |
| 416 | Sample::~Sample() |
| 417 | { |
| 418 | LOGV("Sample::destructor sampleID=%d, fd=%d", mSampleID, mFd); |
| 419 | if (mFd > 0) { |
| 420 | LOGV("close(%d)", mFd); |
| 421 | ::close(mFd); |
| 422 | } |
| 423 | mData.clear(); |
| 424 | delete mUrl; |
| 425 | } |
| 426 | |
| 427 | void Sample::doLoad() |
| 428 | { |
| 429 | uint32_t sampleRate; |
| 430 | int numChannels; |
| 431 | int format; |
| 432 | sp<IMemory> p; |
| 433 | LOGV("Start decode"); |
| 434 | if (mUrl) { |
| 435 | p = MediaPlayer::decode(mUrl, &sampleRate, &numChannels, &format); |
| 436 | } else { |
| 437 | p = MediaPlayer::decode(mFd, mOffset, mLength, &sampleRate, &numChannels, &format); |
| 438 | LOGV("close(%d)", mFd); |
| 439 | ::close(mFd); |
| 440 | mFd = -1; |
| 441 | } |
| 442 | if (p == 0) { |
| 443 | LOGE("Unable to load sample: %s", mUrl); |
| 444 | return; |
| 445 | } |
| 446 | LOGV("pointer = %p, size = %u, sampleRate = %u, numChannels = %d", |
| 447 | p->pointer(), p->size(), sampleRate, numChannels); |
| 448 | |
| 449 | if (sampleRate > kMaxSampleRate) { |
| 450 | LOGE("Sample rate (%u) out of range", sampleRate); |
| 451 | return; |
| 452 | } |
| 453 | |
| 454 | if ((numChannels < 1) || (numChannels > 2)) { |
| 455 | LOGE("Sample channel count (%d) out of range", numChannels); |
| 456 | return; |
| 457 | } |
| 458 | |
| 459 | //_dumpBuffer(p->pointer(), p->size()); |
| 460 | uint8_t* q = static_cast<uint8_t*>(p->pointer()) + p->size() - 10; |
| 461 | //_dumpBuffer(q, 10, 10, false); |
| 462 | |
| 463 | mData = p; |
| 464 | mSize = p->size(); |
| 465 | mSampleRate = sampleRate; |
| 466 | mNumChannels = numChannels; |
| 467 | mFormat = format; |
| 468 | mState = READY; |
| 469 | } |
| 470 | |
| 471 | |
| 472 | void SoundChannel::init(SoundPool* soundPool) |
| 473 | { |
| 474 | mSoundPool = soundPool; |
| 475 | } |
| 476 | |
| 477 | void SoundChannel::play(const sp<Sample>& sample, int nextChannelID, float leftVolume, |
| 478 | float rightVolume, int priority, int loop, float rate) |
| 479 | { |
| 480 | AudioTrack* oldTrack; |
| 481 | |
| 482 | LOGV("play %p: sampleID=%d, channelID=%d, leftVolume=%f, rightVolume=%f, priority=%d, loop=%d, rate=%f", |
| 483 | this, sample->sampleID(), nextChannelID, leftVolume, rightVolume, priority, loop, rate); |
| 484 | |
| 485 | // if not idle, this voice is being stolen |
| 486 | if (mState != IDLE) { |
| 487 | LOGV("channel %d stolen - event queued for channel %d", channelID(), nextChannelID); |
| 488 | stop_l(); |
| 489 | mNextEvent.set(sample, nextChannelID, leftVolume, rightVolume, priority, loop, rate); |
| 490 | #ifdef USE_SHARED_MEM_BUFFER |
| 491 | mSoundPool->done(this); |
| 492 | #endif |
| 493 | return; |
| 494 | } |
| 495 | |
| 496 | // initialize track |
| 497 | int afFrameCount; |
| 498 | int afSampleRate; |
| 499 | int streamType = mSoundPool->streamType(); |
| 500 | if (AudioSystem::getOutputFrameCount(&afFrameCount, streamType) != NO_ERROR) { |
| 501 | afFrameCount = kDefaultFrameCount; |
| 502 | } |
| 503 | if (AudioSystem::getOutputSamplingRate(&afSampleRate, streamType) != NO_ERROR) { |
| 504 | afSampleRate = kDefaultSampleRate; |
| 505 | } |
| 506 | int numChannels = sample->numChannels(); |
| 507 | uint32_t sampleRate = uint32_t(float(sample->sampleRate()) * rate + 0.5); |
| 508 | uint32_t bufferFrames = (afFrameCount * sampleRate) / afSampleRate; |
| 509 | uint32_t frameCount = 0; |
| 510 | |
| 511 | if (loop) { |
| 512 | frameCount = sample->size()/numChannels/((sample->format() == AudioSystem::PCM_16_BIT) ? sizeof(int16_t) : sizeof(uint8_t)); |
| 513 | } |
| 514 | |
Eric Laurent | 9648e4b | 2009-05-07 03:14:31 -0700 | [diff] [blame] | 515 | #ifndef USE_SHARED_MEM_BUFFER |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 516 | // Ensure minimum audio buffer size in case of short looped sample |
| 517 | if(frameCount < kDefaultBufferCount * bufferFrames) { |
| 518 | frameCount = kDefaultBufferCount * bufferFrames; |
| 519 | } |
Eric Laurent | 9648e4b | 2009-05-07 03:14:31 -0700 | [diff] [blame] | 520 | #endif |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 521 | |
| 522 | AudioTrack* newTrack; |
| 523 | |
| 524 | // mToggle toggles each time a track is started on a given channel. |
| 525 | // The toggle is concatenated with the SoundChannel address and passed to AudioTrack |
| 526 | // as callback user data. This enables the detection of callbacks received from the old |
| 527 | // audio track while the new one is being started and avoids processing them with |
| 528 | // wrong audio audio buffer size (mAudioBufferSize) |
| 529 | unsigned long toggle = mToggle ^ 1; |
| 530 | void *userData = (void *)((unsigned long)this | toggle); |
| 531 | |
| 532 | #ifdef USE_SHARED_MEM_BUFFER |
| 533 | newTrack = new AudioTrack(streamType, sampleRate, sample->format(), |
| 534 | numChannels, sample->getIMemory(), 0, callback, userData); |
| 535 | #else |
| 536 | newTrack = new AudioTrack(streamType, sampleRate, sample->format(), |
| 537 | numChannels, frameCount, 0, callback, userData, bufferFrames); |
| 538 | #endif |
| 539 | if (newTrack->initCheck() != NO_ERROR) { |
| 540 | LOGE("Error creating AudioTrack"); |
| 541 | delete newTrack; |
| 542 | return; |
| 543 | } |
| 544 | LOGV("setVolume %p", newTrack); |
| 545 | newTrack->setVolume(leftVolume, rightVolume); |
| 546 | newTrack->setLoop(0, frameCount, loop); |
| 547 | |
| 548 | { |
| 549 | Mutex::Autolock lock(&mLock); |
| 550 | // From now on, AudioTrack callbacks recevieved with previous toggle value will be ignored. |
| 551 | mToggle = toggle; |
| 552 | oldTrack = mAudioTrack; |
| 553 | mAudioTrack = newTrack; |
| 554 | mPos = 0; |
| 555 | mSample = sample; |
| 556 | mChannelID = nextChannelID; |
| 557 | mPriority = priority; |
| 558 | mLoop = loop; |
| 559 | mLeftVolume = leftVolume; |
| 560 | mRightVolume = rightVolume; |
| 561 | mNumChannels = numChannels; |
| 562 | mRate = rate; |
| 563 | clearNextEvent(); |
| 564 | mState = PLAYING; |
| 565 | mAudioTrack->start(); |
| 566 | mAudioBufferSize = newTrack->frameCount()*newTrack->frameSize(); |
| 567 | } |
| 568 | |
| 569 | LOGV("delete oldTrack %p", oldTrack); |
| 570 | delete oldTrack; |
| 571 | } |
| 572 | |
| 573 | void SoundChannel::nextEvent() |
| 574 | { |
| 575 | sp<Sample> sample; |
| 576 | int nextChannelID; |
| 577 | float leftVolume; |
| 578 | float rightVolume; |
| 579 | int priority; |
| 580 | int loop; |
| 581 | float rate; |
| 582 | |
| 583 | // check for valid event |
| 584 | { |
| 585 | Mutex::Autolock lock(&mLock); |
| 586 | nextChannelID = mNextEvent.channelID(); |
| 587 | if (nextChannelID == 0) { |
| 588 | LOGV("stolen channel has no event"); |
| 589 | return; |
| 590 | } |
| 591 | |
| 592 | sample = mNextEvent.sample(); |
| 593 | leftVolume = mNextEvent.leftVolume(); |
| 594 | rightVolume = mNextEvent.rightVolume(); |
| 595 | priority = mNextEvent.priority(); |
| 596 | loop = mNextEvent.loop(); |
| 597 | rate = mNextEvent.rate(); |
| 598 | } |
| 599 | |
| 600 | LOGV("Starting stolen channel %d -> %d", channelID(), nextChannelID); |
| 601 | play(sample, nextChannelID, leftVolume, rightVolume, priority, loop, rate); |
| 602 | } |
| 603 | |
| 604 | void SoundChannel::callback(int event, void* user, void *info) |
| 605 | { |
| 606 | unsigned long toggle = (unsigned long)user & 1; |
| 607 | SoundChannel* channel = static_cast<SoundChannel*>((void *)((unsigned long)user & ~1)); |
| 608 | |
| 609 | if (channel->mToggle != toggle) { |
| 610 | LOGV("callback with wrong toggle"); |
| 611 | return; |
| 612 | } |
| 613 | channel->process(event, info); |
| 614 | } |
| 615 | |
| 616 | void SoundChannel::process(int event, void *info) |
| 617 | { |
| 618 | //LOGV("process(%d)", mChannelID); |
| 619 | sp<Sample> sample = mSample; |
| 620 | |
| 621 | // LOGV("SoundChannel::process event %d", event); |
| 622 | |
| 623 | if (event == AudioTrack::EVENT_MORE_DATA) { |
| 624 | AudioTrack::Buffer* b = static_cast<AudioTrack::Buffer *>(info); |
| 625 | |
| 626 | // check for stop state |
| 627 | if (b->size == 0) return; |
| 628 | |
| 629 | if (sample != 0) { |
| 630 | // fill buffer |
| 631 | uint8_t* q = (uint8_t*) b->i8; |
| 632 | size_t count = 0; |
| 633 | |
| 634 | if (mPos < (int)sample->size()) { |
| 635 | uint8_t* p = sample->data() + mPos; |
| 636 | count = sample->size() - mPos; |
| 637 | if (count > b->size) { |
| 638 | count = b->size; |
| 639 | } |
| 640 | memcpy(q, p, count); |
| 641 | LOGV("fill: q=%p, p=%p, mPos=%u, b->size=%u, count=%d", q, p, mPos, b->size, count); |
| 642 | } else if (mPos < mAudioBufferSize) { |
| 643 | count = mAudioBufferSize - mPos; |
| 644 | if (count > b->size) { |
| 645 | count = b->size; |
| 646 | } |
| 647 | memset(q, 0, count); |
| 648 | LOGV("fill extra: q=%p, mPos=%u, b->size=%u, count=%d", q, mPos, b->size, count); |
| 649 | } |
| 650 | |
| 651 | mPos += count; |
| 652 | b->size = count; |
| 653 | //LOGV("buffer=%p, [0]=%d", b->i16, b->i16[0]); |
| 654 | } |
| 655 | } else if (event == AudioTrack::EVENT_UNDERRUN) { |
| 656 | LOGV("stopping track"); |
| 657 | stop(); |
| 658 | } else if (event == AudioTrack::EVENT_LOOP_END) { |
| 659 | LOGV("End loop: %d", *(int *)info); |
| 660 | } |
| 661 | } |
| 662 | |
| 663 | |
| 664 | // call with lock held |
| 665 | void SoundChannel::stop_l() |
| 666 | { |
| 667 | if (mState != IDLE) { |
| 668 | setVolume_l(0, 0); |
| 669 | LOGV("stop"); |
| 670 | mAudioTrack->stop(); |
| 671 | mSample.clear(); |
| 672 | mState = IDLE; |
| 673 | mPriority = IDLE_PRIORITY; |
| 674 | } |
| 675 | } |
| 676 | |
| 677 | void SoundChannel::stop() |
| 678 | { |
| 679 | { |
| 680 | Mutex::Autolock lock(&mLock); |
| 681 | stop_l(); |
| 682 | } |
| 683 | mSoundPool->done(this); |
| 684 | } |
| 685 | |
| 686 | //FIXME: Pause is a little broken right now |
| 687 | void SoundChannel::pause() |
| 688 | { |
| 689 | Mutex::Autolock lock(&mLock); |
| 690 | if (mState == PLAYING) { |
| 691 | LOGV("pause track"); |
| 692 | mState = PAUSED; |
| 693 | mAudioTrack->pause(); |
| 694 | } |
| 695 | } |
| 696 | |
| 697 | void SoundChannel::resume() |
| 698 | { |
| 699 | Mutex::Autolock lock(&mLock); |
| 700 | if (mState == PAUSED) { |
| 701 | LOGV("resume track"); |
| 702 | mState = PLAYING; |
| 703 | mAudioTrack->start(); |
| 704 | } |
| 705 | } |
| 706 | |
| 707 | void SoundChannel::setRate(float rate) |
| 708 | { |
| 709 | Mutex::Autolock lock(&mLock); |
| 710 | if (mAudioTrack != 0 && mSample.get() != 0) { |
| 711 | uint32_t sampleRate = uint32_t(float(mSample->sampleRate()) * rate + 0.5); |
| 712 | mAudioTrack->setSampleRate(sampleRate); |
| 713 | mRate = rate; |
| 714 | } |
| 715 | } |
| 716 | |
| 717 | // call with lock held |
| 718 | void SoundChannel::setVolume_l(float leftVolume, float rightVolume) |
| 719 | { |
| 720 | mLeftVolume = leftVolume; |
| 721 | mRightVolume = rightVolume; |
| 722 | if (mAudioTrack != 0) mAudioTrack->setVolume(leftVolume, rightVolume); |
| 723 | } |
| 724 | |
| 725 | void SoundChannel::setVolume(float leftVolume, float rightVolume) |
| 726 | { |
| 727 | Mutex::Autolock lock(&mLock); |
| 728 | setVolume_l(leftVolume, rightVolume); |
| 729 | } |
| 730 | |
| 731 | void SoundChannel::setLoop(int loop) |
| 732 | { |
| 733 | Mutex::Autolock lock(&mLock); |
| 734 | if (mAudioTrack != 0 && mSample.get() != 0) { |
| 735 | mAudioTrack->setLoop(0, mSample->size()/mNumChannels/((mSample->format() == AudioSystem::PCM_16_BIT) ? sizeof(int16_t) : sizeof(uint8_t)), loop); |
| 736 | mLoop = loop; |
| 737 | } |
| 738 | } |
| 739 | |
| 740 | SoundChannel::~SoundChannel() |
| 741 | { |
| 742 | LOGV("SoundChannel destructor"); |
| 743 | if (mAudioTrack) { |
| 744 | LOGV("stop track"); |
| 745 | mAudioTrack->stop(); |
| 746 | delete mAudioTrack; |
| 747 | } |
| 748 | clearNextEvent(); |
| 749 | mSample.clear(); |
| 750 | } |
| 751 | |
| 752 | void SoundChannel::dump() |
| 753 | { |
| 754 | LOGV("mState = %d mChannelID=%d, mNumChannels=%d, mPos = %d, mPriority=%d, mLoop=%d", |
| 755 | mState, mChannelID, mNumChannels, mPos, mPriority, mLoop); |
| 756 | } |
| 757 | |
| 758 | void SoundEvent::set(const sp<Sample>& sample, int channelID, float leftVolume, |
| 759 | float rightVolume, int priority, int loop, float rate) |
| 760 | { |
| 761 | mSample =sample; |
| 762 | mChannelID = channelID; |
| 763 | mLeftVolume = leftVolume; |
| 764 | mRightVolume = rightVolume; |
| 765 | mPriority = priority; |
| 766 | mLoop = loop; |
| 767 | mRate =rate; |
| 768 | } |
| 769 | |
| 770 | } // end namespace android |
| 771 | |