NuPlayerRenderer.cpp revision 5833b6aad2c46ba516bdc8262f4fc4667e8018ed
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//#define LOG_NDEBUG 0 18#define LOG_TAG "NuPlayerRenderer" 19#include <utils/Log.h> 20 21#include "NuPlayerRenderer.h" 22 23#include <media/stagefright/foundation/ABuffer.h> 24#include <media/stagefright/foundation/ADebug.h> 25#include <media/stagefright/foundation/AMessage.h> 26#include <media/stagefright/foundation/AUtils.h> 27#include <media/stagefright/foundation/AWakeLock.h> 28#include <media/stagefright/MediaClock.h> 29#include <media/stagefright/MediaErrors.h> 30#include <media/stagefright/MetaData.h> 31#include <media/stagefright/Utils.h> 32 33#include <VideoFrameScheduler.h> 34 35#include <inttypes.h> 36 37namespace android { 38 39// Maximum time in paused state when offloading audio decompression. When elapsed, the AudioSink 40// is closed to allow the audio DSP to power down. 41static const int64_t kOffloadPauseMaxUs = 10000000ll; 42 43// static 44const NuPlayer::Renderer::PcmInfo NuPlayer::Renderer::AUDIO_PCMINFO_INITIALIZER = { 45 AUDIO_CHANNEL_NONE, 46 AUDIO_OUTPUT_FLAG_NONE, 47 AUDIO_FORMAT_INVALID, 48 0, // mNumChannels 49 0 // mSampleRate 50}; 51 52// static 53const int64_t NuPlayer::Renderer::kMinPositionUpdateDelayUs = 100000ll; 54 55NuPlayer::Renderer::Renderer( 56 const sp<MediaPlayerBase::AudioSink> &sink, 57 const sp<AMessage> ¬ify, 58 uint32_t flags) 59 : mAudioSink(sink), 60 mNotify(notify), 61 mFlags(flags), 62 mNumFramesWritten(0), 63 mDrainAudioQueuePending(false), 64 mDrainVideoQueuePending(false), 65 mAudioQueueGeneration(0), 66 mVideoQueueGeneration(0), 67 mAudioDrainGeneration(0), 68 mVideoDrainGeneration(0), 69 mPlaybackRate(1.0), 70 mAudioFirstAnchorTimeMediaUs(-1), 71 mAnchorTimeMediaUs(-1), 72 mAnchorNumFramesWritten(-1), 73 mVideoLateByUs(0ll), 74 mHasAudio(false), 75 mHasVideo(false), 76 mNotifyCompleteAudio(false), 77 mNotifyCompleteVideo(false), 78 mSyncQueues(false), 79 mPaused(false), 80 mVideoSampleReceived(false), 81 mVideoRenderingStarted(false), 82 mVideoRenderingStartGeneration(0), 83 mAudioRenderingStartGeneration(0), 84 mAudioOffloadPauseTimeoutGeneration(0), 85 mAudioOffloadTornDown(false), 86 mCurrentOffloadInfo(AUDIO_INFO_INITIALIZER), 87 mCurrentPcmInfo(AUDIO_PCMINFO_INITIALIZER), 88 mTotalBuffersQueued(0), 89 mLastAudioBufferDrained(0), 90 mWakeLock(new AWakeLock()) { 91 mMediaClock = new MediaClock; 92} 93 94NuPlayer::Renderer::~Renderer() { 95 if (offloadingAudio()) { 96 mAudioSink->stop(); 97 mAudioSink->flush(); 98 mAudioSink->close(); 99 } 100} 101 102void NuPlayer::Renderer::queueBuffer( 103 bool audio, 104 const sp<ABuffer> &buffer, 105 const sp<AMessage> ¬ifyConsumed) { 106 sp<AMessage> msg = new AMessage(kWhatQueueBuffer, id()); 107 msg->setInt32("queueGeneration", getQueueGeneration(audio)); 108 msg->setInt32("audio", static_cast<int32_t>(audio)); 109 msg->setBuffer("buffer", buffer); 110 msg->setMessage("notifyConsumed", notifyConsumed); 111 msg->post(); 112} 113 114void NuPlayer::Renderer::queueEOS(bool audio, status_t finalResult) { 115 CHECK_NE(finalResult, (status_t)OK); 116 117 sp<AMessage> msg = new AMessage(kWhatQueueEOS, id()); 118 msg->setInt32("queueGeneration", getQueueGeneration(audio)); 119 msg->setInt32("audio", static_cast<int32_t>(audio)); 120 msg->setInt32("finalResult", finalResult); 121 msg->post(); 122} 123 124void NuPlayer::Renderer::setPlaybackRate(float rate) { 125 sp<AMessage> msg = new AMessage(kWhatSetRate, id()); 126 msg->setFloat("rate", rate); 127 msg->post(); 128} 129 130void NuPlayer::Renderer::flush(bool audio, bool notifyComplete) { 131 { 132 Mutex::Autolock autoLock(mLock); 133 if (audio) { 134 mNotifyCompleteAudio |= notifyComplete; 135 ++mAudioQueueGeneration; 136 ++mAudioDrainGeneration; 137 } else { 138 mNotifyCompleteVideo |= notifyComplete; 139 ++mVideoQueueGeneration; 140 ++mVideoDrainGeneration; 141 } 142 143 clearAnchorTime_l(); 144 clearAudioFirstAnchorTime_l(); 145 mVideoLateByUs = 0; 146 mSyncQueues = false; 147 } 148 149 sp<AMessage> msg = new AMessage(kWhatFlush, id()); 150 msg->setInt32("audio", static_cast<int32_t>(audio)); 151 msg->post(); 152} 153 154void NuPlayer::Renderer::signalTimeDiscontinuity() { 155} 156 157void NuPlayer::Renderer::signalDisableOffloadAudio() { 158 (new AMessage(kWhatDisableOffloadAudio, id()))->post(); 159} 160 161void NuPlayer::Renderer::signalEnableOffloadAudio() { 162 (new AMessage(kWhatEnableOffloadAudio, id()))->post(); 163} 164 165void NuPlayer::Renderer::pause() { 166 (new AMessage(kWhatPause, id()))->post(); 167} 168 169void NuPlayer::Renderer::resume() { 170 (new AMessage(kWhatResume, id()))->post(); 171} 172 173void NuPlayer::Renderer::setVideoFrameRate(float fps) { 174 sp<AMessage> msg = new AMessage(kWhatSetVideoFrameRate, id()); 175 msg->setFloat("frame-rate", fps); 176 msg->post(); 177} 178 179// Called on any threads. 180status_t NuPlayer::Renderer::getCurrentPosition(int64_t *mediaUs) { 181 return mMediaClock->getMediaTime(ALooper::GetNowUs(), mediaUs); 182} 183 184void NuPlayer::Renderer::clearAudioFirstAnchorTime_l() { 185 mAudioFirstAnchorTimeMediaUs = -1; 186 mMediaClock->setStartingTimeMedia(-1); 187} 188 189void NuPlayer::Renderer::setAudioFirstAnchorTimeIfNeeded_l(int64_t mediaUs) { 190 if (mAudioFirstAnchorTimeMediaUs == -1) { 191 mAudioFirstAnchorTimeMediaUs = mediaUs; 192 mMediaClock->setStartingTimeMedia(mediaUs); 193 } 194} 195 196void NuPlayer::Renderer::clearAnchorTime_l() { 197 mMediaClock->clearAnchor(); 198 mAnchorTimeMediaUs = -1; 199 mAnchorNumFramesWritten = -1; 200} 201 202void NuPlayer::Renderer::setVideoLateByUs(int64_t lateUs) { 203 Mutex::Autolock autoLock(mLock); 204 mVideoLateByUs = lateUs; 205} 206 207int64_t NuPlayer::Renderer::getVideoLateByUs() { 208 Mutex::Autolock autoLock(mLock); 209 return mVideoLateByUs; 210} 211 212status_t NuPlayer::Renderer::openAudioSink( 213 const sp<AMessage> &format, 214 bool offloadOnly, 215 bool hasVideo, 216 uint32_t flags, 217 bool *isOffloaded) { 218 sp<AMessage> msg = new AMessage(kWhatOpenAudioSink, id()); 219 msg->setMessage("format", format); 220 msg->setInt32("offload-only", offloadOnly); 221 msg->setInt32("has-video", hasVideo); 222 msg->setInt32("flags", flags); 223 224 sp<AMessage> response; 225 msg->postAndAwaitResponse(&response); 226 227 int32_t err; 228 if (!response->findInt32("err", &err)) { 229 err = INVALID_OPERATION; 230 } else if (err == OK && isOffloaded != NULL) { 231 int32_t offload; 232 CHECK(response->findInt32("offload", &offload)); 233 *isOffloaded = (offload != 0); 234 } 235 return err; 236} 237 238void NuPlayer::Renderer::closeAudioSink() { 239 sp<AMessage> msg = new AMessage(kWhatCloseAudioSink, id()); 240 241 sp<AMessage> response; 242 msg->postAndAwaitResponse(&response); 243} 244 245void NuPlayer::Renderer::onMessageReceived(const sp<AMessage> &msg) { 246 switch (msg->what()) { 247 case kWhatOpenAudioSink: 248 { 249 sp<AMessage> format; 250 CHECK(msg->findMessage("format", &format)); 251 252 int32_t offloadOnly; 253 CHECK(msg->findInt32("offload-only", &offloadOnly)); 254 255 int32_t hasVideo; 256 CHECK(msg->findInt32("has-video", &hasVideo)); 257 258 uint32_t flags; 259 CHECK(msg->findInt32("flags", (int32_t *)&flags)); 260 261 status_t err = onOpenAudioSink(format, offloadOnly, hasVideo, flags); 262 263 sp<AMessage> response = new AMessage; 264 response->setInt32("err", err); 265 response->setInt32("offload", offloadingAudio()); 266 267 uint32_t replyID; 268 CHECK(msg->senderAwaitsResponse(&replyID)); 269 response->postReply(replyID); 270 271 break; 272 } 273 274 case kWhatCloseAudioSink: 275 { 276 uint32_t replyID; 277 CHECK(msg->senderAwaitsResponse(&replyID)); 278 279 onCloseAudioSink(); 280 281 sp<AMessage> response = new AMessage; 282 response->postReply(replyID); 283 break; 284 } 285 286 case kWhatStopAudioSink: 287 { 288 mAudioSink->stop(); 289 break; 290 } 291 292 case kWhatDrainAudioQueue: 293 { 294 int32_t generation; 295 CHECK(msg->findInt32("drainGeneration", &generation)); 296 if (generation != getDrainGeneration(true /* audio */)) { 297 break; 298 } 299 300 mDrainAudioQueuePending = false; 301 302 if (onDrainAudioQueue()) { 303 uint32_t numFramesPlayed; 304 CHECK_EQ(mAudioSink->getPosition(&numFramesPlayed), 305 (status_t)OK); 306 307 uint32_t numFramesPendingPlayout = 308 mNumFramesWritten - numFramesPlayed; 309 310 // This is how long the audio sink will have data to 311 // play back. 312 int64_t delayUs = 313 mAudioSink->msecsPerFrame() 314 * numFramesPendingPlayout * 1000ll; 315 316 // Let's give it more data after about half that time 317 // has elapsed. 318 Mutex::Autolock autoLock(mLock); 319 postDrainAudioQueue_l(delayUs / 2); 320 } 321 break; 322 } 323 324 case kWhatDrainVideoQueue: 325 { 326 int32_t generation; 327 CHECK(msg->findInt32("drainGeneration", &generation)); 328 if (generation != getDrainGeneration(false /* audio */)) { 329 break; 330 } 331 332 mDrainVideoQueuePending = false; 333 334 onDrainVideoQueue(); 335 336 postDrainVideoQueue(); 337 break; 338 } 339 340 case kWhatPostDrainVideoQueue: 341 { 342 int32_t generation; 343 CHECK(msg->findInt32("drainGeneration", &generation)); 344 if (generation != getDrainGeneration(false /* audio */)) { 345 break; 346 } 347 348 mDrainVideoQueuePending = false; 349 postDrainVideoQueue(); 350 break; 351 } 352 353 case kWhatQueueBuffer: 354 { 355 onQueueBuffer(msg); 356 break; 357 } 358 359 case kWhatQueueEOS: 360 { 361 onQueueEOS(msg); 362 break; 363 } 364 365 case kWhatSetRate: 366 { 367 CHECK(msg->findFloat("rate", &mPlaybackRate)); 368 int32_t ratePermille = (int32_t)(0.5f + 1000 * mPlaybackRate); 369 mPlaybackRate = ratePermille / 1000.0f; 370 mMediaClock->setPlaybackRate(mPlaybackRate); 371 mAudioSink->setPlaybackRatePermille(ratePermille); 372 break; 373 } 374 375 case kWhatFlush: 376 { 377 onFlush(msg); 378 break; 379 } 380 381 case kWhatDisableOffloadAudio: 382 { 383 onDisableOffloadAudio(); 384 break; 385 } 386 387 case kWhatEnableOffloadAudio: 388 { 389 onEnableOffloadAudio(); 390 break; 391 } 392 393 case kWhatPause: 394 { 395 onPause(); 396 break; 397 } 398 399 case kWhatResume: 400 { 401 onResume(); 402 break; 403 } 404 405 case kWhatSetVideoFrameRate: 406 { 407 float fps; 408 CHECK(msg->findFloat("frame-rate", &fps)); 409 onSetVideoFrameRate(fps); 410 break; 411 } 412 413 case kWhatAudioOffloadTearDown: 414 { 415 onAudioOffloadTearDown(kDueToError); 416 break; 417 } 418 419 case kWhatAudioOffloadPauseTimeout: 420 { 421 int32_t generation; 422 CHECK(msg->findInt32("drainGeneration", &generation)); 423 if (generation != mAudioOffloadPauseTimeoutGeneration) { 424 break; 425 } 426 ALOGV("Audio Offload tear down due to pause timeout."); 427 onAudioOffloadTearDown(kDueToTimeout); 428 mWakeLock->release(); 429 break; 430 } 431 432 default: 433 TRESPASS(); 434 break; 435 } 436} 437 438void NuPlayer::Renderer::postDrainAudioQueue_l(int64_t delayUs) { 439 if (mDrainAudioQueuePending || mSyncQueues || mPaused 440 || offloadingAudio()) { 441 return; 442 } 443 444 if (mAudioQueue.empty()) { 445 return; 446 } 447 448 mDrainAudioQueuePending = true; 449 sp<AMessage> msg = new AMessage(kWhatDrainAudioQueue, id()); 450 msg->setInt32("drainGeneration", mAudioDrainGeneration); 451 msg->post(delayUs); 452} 453 454void NuPlayer::Renderer::prepareForMediaRenderingStart_l() { 455 mAudioRenderingStartGeneration = mAudioDrainGeneration; 456 mVideoRenderingStartGeneration = mVideoDrainGeneration; 457} 458 459void NuPlayer::Renderer::notifyIfMediaRenderingStarted_l() { 460 if (mVideoRenderingStartGeneration == mVideoDrainGeneration && 461 mAudioRenderingStartGeneration == mAudioDrainGeneration) { 462 mVideoRenderingStartGeneration = -1; 463 mAudioRenderingStartGeneration = -1; 464 465 sp<AMessage> notify = mNotify->dup(); 466 notify->setInt32("what", kWhatMediaRenderingStart); 467 notify->post(); 468 } 469} 470 471// static 472size_t NuPlayer::Renderer::AudioSinkCallback( 473 MediaPlayerBase::AudioSink * /* audioSink */, 474 void *buffer, 475 size_t size, 476 void *cookie, 477 MediaPlayerBase::AudioSink::cb_event_t event) { 478 NuPlayer::Renderer *me = (NuPlayer::Renderer *)cookie; 479 480 switch (event) { 481 case MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER: 482 { 483 return me->fillAudioBuffer(buffer, size); 484 break; 485 } 486 487 case MediaPlayerBase::AudioSink::CB_EVENT_STREAM_END: 488 { 489 me->notifyEOS(true /* audio */, ERROR_END_OF_STREAM); 490 break; 491 } 492 493 case MediaPlayerBase::AudioSink::CB_EVENT_TEAR_DOWN: 494 { 495 me->notifyAudioOffloadTearDown(); 496 break; 497 } 498 } 499 500 return 0; 501} 502 503size_t NuPlayer::Renderer::fillAudioBuffer(void *buffer, size_t size) { 504 Mutex::Autolock autoLock(mLock); 505 506 if (!offloadingAudio() || mPaused) { 507 return 0; 508 } 509 510 bool hasEOS = false; 511 512 size_t sizeCopied = 0; 513 bool firstEntry = true; 514 while (sizeCopied < size && !mAudioQueue.empty()) { 515 QueueEntry *entry = &*mAudioQueue.begin(); 516 517 if (entry->mBuffer == NULL) { // EOS 518 hasEOS = true; 519 mAudioQueue.erase(mAudioQueue.begin()); 520 entry = NULL; 521 break; 522 } 523 524 if (firstEntry && entry->mOffset == 0) { 525 firstEntry = false; 526 int64_t mediaTimeUs; 527 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 528 ALOGV("rendering audio at media time %.2f secs", mediaTimeUs / 1E6); 529 setAudioFirstAnchorTimeIfNeeded_l(mediaTimeUs); 530 } 531 532 size_t copy = entry->mBuffer->size() - entry->mOffset; 533 size_t sizeRemaining = size - sizeCopied; 534 if (copy > sizeRemaining) { 535 copy = sizeRemaining; 536 } 537 538 memcpy((char *)buffer + sizeCopied, 539 entry->mBuffer->data() + entry->mOffset, 540 copy); 541 542 entry->mOffset += copy; 543 if (entry->mOffset == entry->mBuffer->size()) { 544 entry->mNotifyConsumed->post(); 545 mAudioQueue.erase(mAudioQueue.begin()); 546 entry = NULL; 547 } 548 sizeCopied += copy; 549 550 notifyIfMediaRenderingStarted_l(); 551 } 552 553 if (mAudioFirstAnchorTimeMediaUs >= 0) { 554 int64_t nowUs = ALooper::GetNowUs(); 555 int64_t nowMediaUs = 556 mAudioFirstAnchorTimeMediaUs + getPlayedOutAudioDurationUs(nowUs); 557 // we don't know how much data we are queueing for offloaded tracks. 558 mMediaClock->updateAnchor(nowMediaUs, nowUs, INT64_MAX); 559 } 560 561 if (hasEOS) { 562 (new AMessage(kWhatStopAudioSink, id()))->post(); 563 } 564 565 return sizeCopied; 566} 567 568bool NuPlayer::Renderer::onDrainAudioQueue() { 569#if 0 570 uint32_t numFramesPlayed; 571 if (mAudioSink->getPosition(&numFramesPlayed) != OK) { 572 return false; 573 } 574 575 ssize_t numFramesAvailableToWrite = 576 mAudioSink->frameCount() - (mNumFramesWritten - numFramesPlayed); 577 578 if (numFramesAvailableToWrite == mAudioSink->frameCount()) { 579 ALOGI("audio sink underrun"); 580 } else { 581 ALOGV("audio queue has %d frames left to play", 582 mAudioSink->frameCount() - numFramesAvailableToWrite); 583 } 584#endif 585 586 while (!mAudioQueue.empty()) { 587 QueueEntry *entry = &*mAudioQueue.begin(); 588 589 mLastAudioBufferDrained = entry->mBufferOrdinal; 590 591 if (entry->mBuffer == NULL) { 592 // EOS 593 int64_t postEOSDelayUs = 0; 594 if (mAudioSink->needsTrailingPadding()) { 595 postEOSDelayUs = getPendingAudioPlayoutDurationUs(ALooper::GetNowUs()); 596 } 597 notifyEOS(true /* audio */, entry->mFinalResult, postEOSDelayUs); 598 599 mAudioQueue.erase(mAudioQueue.begin()); 600 entry = NULL; 601 if (mAudioSink->needsTrailingPadding()) { 602 // If we're not in gapless playback (i.e. through setNextPlayer), we 603 // need to stop the track here, because that will play out the last 604 // little bit at the end of the file. Otherwise short files won't play. 605 mAudioSink->stop(); 606 mNumFramesWritten = 0; 607 } 608 return false; 609 } 610 611 if (entry->mOffset == 0) { 612 int64_t mediaTimeUs; 613 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 614 ALOGV("rendering audio at media time %.2f secs", mediaTimeUs / 1E6); 615 onNewAudioMediaTime(mediaTimeUs); 616 } 617 618 size_t copy = entry->mBuffer->size() - entry->mOffset; 619 620 ssize_t written = mAudioSink->write(entry->mBuffer->data() + entry->mOffset, 621 copy, false /* blocking */); 622 if (written < 0) { 623 // An error in AudioSink write. Perhaps the AudioSink was not properly opened. 624 if (written == WOULD_BLOCK) { 625 ALOGW("AudioSink write would block when writing %zu bytes", copy); 626 } else { 627 ALOGE("AudioSink write error(%zd) when writing %zu bytes", written, copy); 628 } 629 break; 630 } 631 632 entry->mOffset += written; 633 if (entry->mOffset == entry->mBuffer->size()) { 634 entry->mNotifyConsumed->post(); 635 mAudioQueue.erase(mAudioQueue.begin()); 636 637 entry = NULL; 638 } 639 640 size_t copiedFrames = written / mAudioSink->frameSize(); 641 mNumFramesWritten += copiedFrames; 642 643 { 644 Mutex::Autolock autoLock(mLock); 645 notifyIfMediaRenderingStarted_l(); 646 } 647 648 if (written != (ssize_t)copy) { 649 // A short count was received from AudioSink::write() 650 // 651 // AudioSink write is called in non-blocking mode. 652 // It may return with a short count when: 653 // 654 // 1) Size to be copied is not a multiple of the frame size. We consider this fatal. 655 // 2) The data to be copied exceeds the available buffer in AudioSink. 656 // 3) An error occurs and data has been partially copied to the buffer in AudioSink. 657 // 4) AudioSink is an AudioCache for data retrieval, and the AudioCache is exceeded. 658 659 // (Case 1) 660 // Must be a multiple of the frame size. If it is not a multiple of a frame size, it 661 // needs to fail, as we should not carry over fractional frames between calls. 662 CHECK_EQ(copy % mAudioSink->frameSize(), 0); 663 664 // (Case 2, 3, 4) 665 // Return early to the caller. 666 // Beware of calling immediately again as this may busy-loop if you are not careful. 667 ALOGV("AudioSink write short frame count %zd < %zu", written, copy); 668 break; 669 } 670 } 671 int64_t maxTimeMedia; 672 { 673 Mutex::Autolock autoLock(mLock); 674 maxTimeMedia = 675 mAnchorTimeMediaUs + 676 (int64_t)(max((long long)mNumFramesWritten - mAnchorNumFramesWritten, 0LL) 677 * 1000LL * mAudioSink->msecsPerFrame()); 678 } 679 mMediaClock->updateMaxTimeMedia(maxTimeMedia); 680 681 return !mAudioQueue.empty(); 682} 683 684int64_t NuPlayer::Renderer::getDurationUsIfPlayedAtSampleRate(uint32_t numFrames) { 685 int32_t sampleRate = offloadingAudio() ? 686 mCurrentOffloadInfo.sample_rate : mCurrentPcmInfo.mSampleRate; 687 // TODO: remove the (int32_t) casting below as it may overflow at 12.4 hours. 688 return (int64_t)((int32_t)numFrames * 1000000LL / sampleRate); 689} 690 691// Calculate duration of pending samples if played at normal rate (i.e., 1.0). 692int64_t NuPlayer::Renderer::getPendingAudioPlayoutDurationUs(int64_t nowUs) { 693 int64_t writtenAudioDurationUs = getDurationUsIfPlayedAtSampleRate(mNumFramesWritten); 694 return writtenAudioDurationUs - getPlayedOutAudioDurationUs(nowUs); 695} 696 697int64_t NuPlayer::Renderer::getRealTimeUs(int64_t mediaTimeUs, int64_t nowUs) { 698 int64_t realUs; 699 if (mMediaClock->getRealTimeFor(mediaTimeUs, &realUs) != OK) { 700 // If failed to get current position, e.g. due to audio clock is 701 // not ready, then just play out video immediately without delay. 702 return nowUs; 703 } 704 return realUs; 705} 706 707void NuPlayer::Renderer::onNewAudioMediaTime(int64_t mediaTimeUs) { 708 Mutex::Autolock autoLock(mLock); 709 // TRICKY: vorbis decoder generates multiple frames with the same 710 // timestamp, so only update on the first frame with a given timestamp 711 if (mediaTimeUs == mAnchorTimeMediaUs) { 712 return; 713 } 714 setAudioFirstAnchorTimeIfNeeded_l(mediaTimeUs); 715 int64_t nowUs = ALooper::GetNowUs(); 716 int64_t nowMediaUs = mediaTimeUs - getPendingAudioPlayoutDurationUs(nowUs); 717 mMediaClock->updateAnchor(nowMediaUs, nowUs, mediaTimeUs); 718 mAnchorTimeMediaUs = mediaTimeUs; 719} 720 721// Called without mLock acquired. 722void NuPlayer::Renderer::postDrainVideoQueue() { 723 if (mDrainVideoQueuePending 724 || getSyncQueues() 725 || (mPaused && mVideoSampleReceived)) { 726 return; 727 } 728 729 if (mVideoQueue.empty()) { 730 return; 731 } 732 733 QueueEntry &entry = *mVideoQueue.begin(); 734 735 sp<AMessage> msg = new AMessage(kWhatDrainVideoQueue, id()); 736 msg->setInt32("drainGeneration", getDrainGeneration(false /* audio */)); 737 738 if (entry.mBuffer == NULL) { 739 // EOS doesn't carry a timestamp. 740 msg->post(); 741 mDrainVideoQueuePending = true; 742 return; 743 } 744 745 int64_t delayUs; 746 int64_t nowUs = ALooper::GetNowUs(); 747 int64_t realTimeUs; 748 if (mFlags & FLAG_REAL_TIME) { 749 int64_t mediaTimeUs; 750 CHECK(entry.mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 751 realTimeUs = mediaTimeUs; 752 } else { 753 int64_t mediaTimeUs; 754 CHECK(entry.mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 755 756 { 757 Mutex::Autolock autoLock(mLock); 758 if (mAnchorTimeMediaUs < 0) { 759 mMediaClock->updateAnchor(mediaTimeUs, nowUs, mediaTimeUs); 760 mAnchorTimeMediaUs = mediaTimeUs; 761 realTimeUs = nowUs; 762 } else { 763 realTimeUs = getRealTimeUs(mediaTimeUs, nowUs); 764 } 765 } 766 if (!mHasAudio) { 767 // smooth out videos >= 10fps 768 mMediaClock->updateMaxTimeMedia(mediaTimeUs + 100000); 769 } 770 771 // Heuristics to handle situation when media time changed without a 772 // discontinuity. If we have not drained an audio buffer that was 773 // received after this buffer, repost in 10 msec. Otherwise repost 774 // in 500 msec. 775 delayUs = realTimeUs - nowUs; 776 if (delayUs > 500000) { 777 int64_t postDelayUs = 500000; 778 if (mHasAudio && (mLastAudioBufferDrained - entry.mBufferOrdinal) <= 0) { 779 postDelayUs = 10000; 780 } 781 msg->setWhat(kWhatPostDrainVideoQueue); 782 msg->post(postDelayUs); 783 mVideoScheduler->restart(); 784 ALOGI("possible video time jump of %dms, retrying in %dms", 785 (int)(delayUs / 1000), (int)(postDelayUs / 1000)); 786 mDrainVideoQueuePending = true; 787 return; 788 } 789 } 790 791 realTimeUs = mVideoScheduler->schedule(realTimeUs * 1000) / 1000; 792 int64_t twoVsyncsUs = 2 * (mVideoScheduler->getVsyncPeriod() / 1000); 793 794 delayUs = realTimeUs - nowUs; 795 796 ALOGW_IF(delayUs > 500000, "unusually high delayUs: %" PRId64, delayUs); 797 // post 2 display refreshes before rendering is due 798 msg->post(delayUs > twoVsyncsUs ? delayUs - twoVsyncsUs : 0); 799 800 mDrainVideoQueuePending = true; 801} 802 803void NuPlayer::Renderer::onDrainVideoQueue() { 804 if (mVideoQueue.empty()) { 805 return; 806 } 807 808 QueueEntry *entry = &*mVideoQueue.begin(); 809 810 if (entry->mBuffer == NULL) { 811 // EOS 812 813 notifyEOS(false /* audio */, entry->mFinalResult); 814 815 mVideoQueue.erase(mVideoQueue.begin()); 816 entry = NULL; 817 818 setVideoLateByUs(0); 819 return; 820 } 821 822 int64_t nowUs = -1; 823 int64_t realTimeUs; 824 if (mFlags & FLAG_REAL_TIME) { 825 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &realTimeUs)); 826 } else { 827 int64_t mediaTimeUs; 828 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 829 830 nowUs = ALooper::GetNowUs(); 831 realTimeUs = getRealTimeUs(mediaTimeUs, nowUs); 832 } 833 834 bool tooLate = false; 835 836 if (!mPaused) { 837 if (nowUs == -1) { 838 nowUs = ALooper::GetNowUs(); 839 } 840 setVideoLateByUs(nowUs - realTimeUs); 841 tooLate = (mVideoLateByUs > 40000); 842 843 if (tooLate) { 844 ALOGV("video late by %lld us (%.2f secs)", 845 mVideoLateByUs, mVideoLateByUs / 1E6); 846 } else { 847 int64_t mediaUs = 0; 848 mMediaClock->getMediaTime(realTimeUs, &mediaUs); 849 ALOGV("rendering video at media time %.2f secs", 850 (mFlags & FLAG_REAL_TIME ? realTimeUs : 851 mediaUs) / 1E6); 852 } 853 } else { 854 setVideoLateByUs(0); 855 if (!mVideoSampleReceived && !mHasAudio) { 856 // This will ensure that the first frame after a flush won't be used as anchor 857 // when renderer is in paused state, because resume can happen any time after seek. 858 Mutex::Autolock autoLock(mLock); 859 clearAnchorTime_l(); 860 } 861 } 862 863 entry->mNotifyConsumed->setInt64("timestampNs", realTimeUs * 1000ll); 864 entry->mNotifyConsumed->setInt32("render", !tooLate); 865 entry->mNotifyConsumed->post(); 866 mVideoQueue.erase(mVideoQueue.begin()); 867 entry = NULL; 868 869 mVideoSampleReceived = true; 870 871 if (!mPaused) { 872 if (!mVideoRenderingStarted) { 873 mVideoRenderingStarted = true; 874 notifyVideoRenderingStart(); 875 } 876 Mutex::Autolock autoLock(mLock); 877 notifyIfMediaRenderingStarted_l(); 878 } 879} 880 881void NuPlayer::Renderer::notifyVideoRenderingStart() { 882 sp<AMessage> notify = mNotify->dup(); 883 notify->setInt32("what", kWhatVideoRenderingStart); 884 notify->post(); 885} 886 887void NuPlayer::Renderer::notifyEOS(bool audio, status_t finalResult, int64_t delayUs) { 888 sp<AMessage> notify = mNotify->dup(); 889 notify->setInt32("what", kWhatEOS); 890 notify->setInt32("audio", static_cast<int32_t>(audio)); 891 notify->setInt32("finalResult", finalResult); 892 notify->post(delayUs); 893} 894 895void NuPlayer::Renderer::notifyAudioOffloadTearDown() { 896 (new AMessage(kWhatAudioOffloadTearDown, id()))->post(); 897} 898 899void NuPlayer::Renderer::onQueueBuffer(const sp<AMessage> &msg) { 900 int32_t audio; 901 CHECK(msg->findInt32("audio", &audio)); 902 903 if (dropBufferIfStale(audio, msg)) { 904 return; 905 } 906 907 if (audio) { 908 mHasAudio = true; 909 } else { 910 mHasVideo = true; 911 } 912 913 if (mHasVideo) { 914 if (mVideoScheduler == NULL) { 915 mVideoScheduler = new VideoFrameScheduler(); 916 mVideoScheduler->init(); 917 } 918 } 919 920 sp<ABuffer> buffer; 921 CHECK(msg->findBuffer("buffer", &buffer)); 922 923 sp<AMessage> notifyConsumed; 924 CHECK(msg->findMessage("notifyConsumed", ¬ifyConsumed)); 925 926 QueueEntry entry; 927 entry.mBuffer = buffer; 928 entry.mNotifyConsumed = notifyConsumed; 929 entry.mOffset = 0; 930 entry.mFinalResult = OK; 931 entry.mBufferOrdinal = ++mTotalBuffersQueued; 932 933 if (audio) { 934 Mutex::Autolock autoLock(mLock); 935 mAudioQueue.push_back(entry); 936 postDrainAudioQueue_l(); 937 } else { 938 mVideoQueue.push_back(entry); 939 postDrainVideoQueue(); 940 } 941 942 Mutex::Autolock autoLock(mLock); 943 if (!mSyncQueues || mAudioQueue.empty() || mVideoQueue.empty()) { 944 return; 945 } 946 947 sp<ABuffer> firstAudioBuffer = (*mAudioQueue.begin()).mBuffer; 948 sp<ABuffer> firstVideoBuffer = (*mVideoQueue.begin()).mBuffer; 949 950 if (firstAudioBuffer == NULL || firstVideoBuffer == NULL) { 951 // EOS signalled on either queue. 952 syncQueuesDone_l(); 953 return; 954 } 955 956 int64_t firstAudioTimeUs; 957 int64_t firstVideoTimeUs; 958 CHECK(firstAudioBuffer->meta() 959 ->findInt64("timeUs", &firstAudioTimeUs)); 960 CHECK(firstVideoBuffer->meta() 961 ->findInt64("timeUs", &firstVideoTimeUs)); 962 963 int64_t diff = firstVideoTimeUs - firstAudioTimeUs; 964 965 ALOGV("queueDiff = %.2f secs", diff / 1E6); 966 967 if (diff > 100000ll) { 968 // Audio data starts More than 0.1 secs before video. 969 // Drop some audio. 970 971 (*mAudioQueue.begin()).mNotifyConsumed->post(); 972 mAudioQueue.erase(mAudioQueue.begin()); 973 return; 974 } 975 976 syncQueuesDone_l(); 977} 978 979void NuPlayer::Renderer::syncQueuesDone_l() { 980 if (!mSyncQueues) { 981 return; 982 } 983 984 mSyncQueues = false; 985 986 if (!mAudioQueue.empty()) { 987 postDrainAudioQueue_l(); 988 } 989 990 if (!mVideoQueue.empty()) { 991 mLock.unlock(); 992 postDrainVideoQueue(); 993 mLock.lock(); 994 } 995} 996 997void NuPlayer::Renderer::onQueueEOS(const sp<AMessage> &msg) { 998 int32_t audio; 999 CHECK(msg->findInt32("audio", &audio)); 1000 1001 if (dropBufferIfStale(audio, msg)) { 1002 return; 1003 } 1004 1005 int32_t finalResult; 1006 CHECK(msg->findInt32("finalResult", &finalResult)); 1007 1008 QueueEntry entry; 1009 entry.mOffset = 0; 1010 entry.mFinalResult = finalResult; 1011 1012 if (audio) { 1013 Mutex::Autolock autoLock(mLock); 1014 if (mAudioQueue.empty() && mSyncQueues) { 1015 syncQueuesDone_l(); 1016 } 1017 mAudioQueue.push_back(entry); 1018 postDrainAudioQueue_l(); 1019 } else { 1020 if (mVideoQueue.empty() && getSyncQueues()) { 1021 Mutex::Autolock autoLock(mLock); 1022 syncQueuesDone_l(); 1023 } 1024 mVideoQueue.push_back(entry); 1025 postDrainVideoQueue(); 1026 } 1027} 1028 1029void NuPlayer::Renderer::onFlush(const sp<AMessage> &msg) { 1030 int32_t audio, notifyComplete; 1031 CHECK(msg->findInt32("audio", &audio)); 1032 1033 { 1034 Mutex::Autolock autoLock(mLock); 1035 if (audio) { 1036 notifyComplete = mNotifyCompleteAudio; 1037 mNotifyCompleteAudio = false; 1038 } else { 1039 notifyComplete = mNotifyCompleteVideo; 1040 mNotifyCompleteVideo = false; 1041 } 1042 1043 // If we're currently syncing the queues, i.e. dropping audio while 1044 // aligning the first audio/video buffer times and only one of the 1045 // two queues has data, we may starve that queue by not requesting 1046 // more buffers from the decoder. If the other source then encounters 1047 // a discontinuity that leads to flushing, we'll never find the 1048 // corresponding discontinuity on the other queue. 1049 // Therefore we'll stop syncing the queues if at least one of them 1050 // is flushed. 1051 syncQueuesDone_l(); 1052 clearAnchorTime_l(); 1053 } 1054 1055 ALOGV("flushing %s", audio ? "audio" : "video"); 1056 if (audio) { 1057 { 1058 Mutex::Autolock autoLock(mLock); 1059 flushQueue(&mAudioQueue); 1060 1061 ++mAudioDrainGeneration; 1062 prepareForMediaRenderingStart_l(); 1063 1064 if (offloadingAudio()) { 1065 clearAudioFirstAnchorTime_l(); 1066 } 1067 } 1068 1069 mDrainAudioQueuePending = false; 1070 1071 if (offloadingAudio()) { 1072 mAudioSink->pause(); 1073 mAudioSink->flush(); 1074 mAudioSink->start(); 1075 } 1076 } else { 1077 flushQueue(&mVideoQueue); 1078 1079 mDrainVideoQueuePending = false; 1080 1081 if (mVideoScheduler != NULL) { 1082 mVideoScheduler->restart(); 1083 } 1084 1085 Mutex::Autolock autoLock(mLock); 1086 ++mVideoDrainGeneration; 1087 prepareForMediaRenderingStart_l(); 1088 } 1089 1090 mVideoSampleReceived = false; 1091 1092 if (notifyComplete) { 1093 notifyFlushComplete(audio); 1094 } 1095} 1096 1097void NuPlayer::Renderer::flushQueue(List<QueueEntry> *queue) { 1098 while (!queue->empty()) { 1099 QueueEntry *entry = &*queue->begin(); 1100 1101 if (entry->mBuffer != NULL) { 1102 entry->mNotifyConsumed->post(); 1103 } 1104 1105 queue->erase(queue->begin()); 1106 entry = NULL; 1107 } 1108} 1109 1110void NuPlayer::Renderer::notifyFlushComplete(bool audio) { 1111 sp<AMessage> notify = mNotify->dup(); 1112 notify->setInt32("what", kWhatFlushComplete); 1113 notify->setInt32("audio", static_cast<int32_t>(audio)); 1114 notify->post(); 1115} 1116 1117bool NuPlayer::Renderer::dropBufferIfStale( 1118 bool audio, const sp<AMessage> &msg) { 1119 int32_t queueGeneration; 1120 CHECK(msg->findInt32("queueGeneration", &queueGeneration)); 1121 1122 if (queueGeneration == getQueueGeneration(audio)) { 1123 return false; 1124 } 1125 1126 sp<AMessage> notifyConsumed; 1127 if (msg->findMessage("notifyConsumed", ¬ifyConsumed)) { 1128 notifyConsumed->post(); 1129 } 1130 1131 return true; 1132} 1133 1134void NuPlayer::Renderer::onAudioSinkChanged() { 1135 if (offloadingAudio()) { 1136 return; 1137 } 1138 CHECK(!mDrainAudioQueuePending); 1139 mNumFramesWritten = 0; 1140 { 1141 Mutex::Autolock autoLock(mLock); 1142 mAnchorNumFramesWritten = -1; 1143 } 1144 uint32_t written; 1145 if (mAudioSink->getFramesWritten(&written) == OK) { 1146 mNumFramesWritten = written; 1147 } 1148} 1149 1150void NuPlayer::Renderer::onDisableOffloadAudio() { 1151 Mutex::Autolock autoLock(mLock); 1152 mFlags &= ~FLAG_OFFLOAD_AUDIO; 1153 ++mAudioDrainGeneration; 1154} 1155 1156void NuPlayer::Renderer::onEnableOffloadAudio() { 1157 Mutex::Autolock autoLock(mLock); 1158 mFlags |= FLAG_OFFLOAD_AUDIO; 1159 ++mAudioDrainGeneration; 1160} 1161 1162void NuPlayer::Renderer::onPause() { 1163 if (mPaused) { 1164 ALOGW("Renderer::onPause() called while already paused!"); 1165 return; 1166 } 1167 int64_t currentPositionUs; 1168 { 1169 Mutex::Autolock autoLock(mLock); 1170 ++mAudioDrainGeneration; 1171 ++mVideoDrainGeneration; 1172 prepareForMediaRenderingStart_l(); 1173 mPaused = true; 1174 mMediaClock->setPlaybackRate(0.0); 1175 } 1176 1177 mDrainAudioQueuePending = false; 1178 mDrainVideoQueuePending = false; 1179 1180 if (mHasAudio) { 1181 mAudioSink->pause(); 1182 startAudioOffloadPauseTimeout(); 1183 } 1184 1185 ALOGV("now paused audio queue has %d entries, video has %d entries", 1186 mAudioQueue.size(), mVideoQueue.size()); 1187} 1188 1189void NuPlayer::Renderer::onResume() { 1190 if (!mPaused) { 1191 return; 1192 } 1193 1194 if (mHasAudio) { 1195 cancelAudioOffloadPauseTimeout(); 1196 mAudioSink->start(); 1197 } 1198 1199 { 1200 Mutex::Autolock autoLock(mLock); 1201 mPaused = false; 1202 mMediaClock->setPlaybackRate(mPlaybackRate); 1203 1204 if (!mAudioQueue.empty()) { 1205 postDrainAudioQueue_l(); 1206 } 1207 } 1208 1209 if (!mVideoQueue.empty()) { 1210 postDrainVideoQueue(); 1211 } 1212} 1213 1214void NuPlayer::Renderer::onSetVideoFrameRate(float fps) { 1215 if (mVideoScheduler == NULL) { 1216 mVideoScheduler = new VideoFrameScheduler(); 1217 } 1218 mVideoScheduler->init(fps); 1219} 1220 1221int32_t NuPlayer::Renderer::getQueueGeneration(bool audio) { 1222 Mutex::Autolock autoLock(mLock); 1223 return (audio ? mAudioQueueGeneration : mVideoQueueGeneration); 1224} 1225 1226int32_t NuPlayer::Renderer::getDrainGeneration(bool audio) { 1227 Mutex::Autolock autoLock(mLock); 1228 return (audio ? mAudioDrainGeneration : mVideoDrainGeneration); 1229} 1230 1231bool NuPlayer::Renderer::getSyncQueues() { 1232 Mutex::Autolock autoLock(mLock); 1233 return mSyncQueues; 1234} 1235 1236// TODO: Remove unnecessary calls to getPlayedOutAudioDurationUs() 1237// as it acquires locks and may query the audio driver. 1238// 1239// Some calls could conceivably retrieve extrapolated data instead of 1240// accessing getTimestamp() or getPosition() every time a data buffer with 1241// a media time is received. 1242// 1243// Calculate duration of played samples if played at normal rate (i.e., 1.0). 1244int64_t NuPlayer::Renderer::getPlayedOutAudioDurationUs(int64_t nowUs) { 1245 uint32_t numFramesPlayed; 1246 int64_t numFramesPlayedAt; 1247 AudioTimestamp ts; 1248 static const int64_t kStaleTimestamp100ms = 100000; 1249 1250 status_t res = mAudioSink->getTimestamp(ts); 1251 if (res == OK) { // case 1: mixing audio tracks and offloaded tracks. 1252 numFramesPlayed = ts.mPosition; 1253 numFramesPlayedAt = 1254 ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000; 1255 const int64_t timestampAge = nowUs - numFramesPlayedAt; 1256 if (timestampAge > kStaleTimestamp100ms) { 1257 // This is an audio FIXME. 1258 // getTimestamp returns a timestamp which may come from audio mixing threads. 1259 // After pausing, the MixerThread may go idle, thus the mTime estimate may 1260 // become stale. Assuming that the MixerThread runs 20ms, with FastMixer at 5ms, 1261 // the max latency should be about 25ms with an average around 12ms (to be verified). 1262 // For safety we use 100ms. 1263 ALOGV("getTimestamp: returned stale timestamp nowUs(%lld) numFramesPlayedAt(%lld)", 1264 (long long)nowUs, (long long)numFramesPlayedAt); 1265 numFramesPlayedAt = nowUs - kStaleTimestamp100ms; 1266 } 1267 //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAt); 1268 } else if (res == WOULD_BLOCK) { // case 2: transitory state on start of a new track 1269 numFramesPlayed = 0; 1270 numFramesPlayedAt = nowUs; 1271 //ALOGD("getTimestamp: WOULD_BLOCK %d %lld", 1272 // numFramesPlayed, (long long)numFramesPlayedAt); 1273 } else { // case 3: transitory at new track or audio fast tracks. 1274 res = mAudioSink->getPosition(&numFramesPlayed); 1275 CHECK_EQ(res, (status_t)OK); 1276 numFramesPlayedAt = nowUs; 1277 numFramesPlayedAt += 1000LL * mAudioSink->latency() / 2; /* XXX */ 1278 //ALOGD("getPosition: %d %lld", numFramesPlayed, numFramesPlayedAt); 1279 } 1280 1281 //CHECK_EQ(numFramesPlayed & (1 << 31), 0); // can't be negative until 12.4 hrs, test 1282 int64_t durationUs = getDurationUsIfPlayedAtSampleRate(numFramesPlayed) 1283 + nowUs - numFramesPlayedAt; 1284 if (durationUs < 0) { 1285 // Occurs when numFramesPlayed position is very small and the following: 1286 // (1) In case 1, the time nowUs is computed before getTimestamp() is called and 1287 // numFramesPlayedAt is greater than nowUs by time more than numFramesPlayed. 1288 // (2) In case 3, using getPosition and adding mAudioSink->latency() to 1289 // numFramesPlayedAt, by a time amount greater than numFramesPlayed. 1290 // 1291 // Both of these are transitory conditions. 1292 ALOGV("getPlayedOutAudioDurationUs: negative duration %lld set to zero", (long long)durationUs); 1293 durationUs = 0; 1294 } 1295 ALOGV("getPlayedOutAudioDurationUs(%lld) nowUs(%lld) frames(%u) framesAt(%lld)", 1296 (long long)durationUs, (long long)nowUs, numFramesPlayed, (long long)numFramesPlayedAt); 1297 return durationUs; 1298} 1299 1300void NuPlayer::Renderer::onAudioOffloadTearDown(AudioOffloadTearDownReason reason) { 1301 if (mAudioOffloadTornDown) { 1302 return; 1303 } 1304 mAudioOffloadTornDown = true; 1305 1306 int64_t currentPositionUs; 1307 if (getCurrentPosition(¤tPositionUs) != OK) { 1308 currentPositionUs = 0; 1309 } 1310 1311 mAudioSink->stop(); 1312 mAudioSink->flush(); 1313 1314 sp<AMessage> notify = mNotify->dup(); 1315 notify->setInt32("what", kWhatAudioOffloadTearDown); 1316 notify->setInt64("positionUs", currentPositionUs); 1317 notify->setInt32("reason", reason); 1318 notify->post(); 1319} 1320 1321void NuPlayer::Renderer::startAudioOffloadPauseTimeout() { 1322 if (offloadingAudio()) { 1323 mWakeLock->acquire(); 1324 sp<AMessage> msg = new AMessage(kWhatAudioOffloadPauseTimeout, id()); 1325 msg->setInt32("drainGeneration", mAudioOffloadPauseTimeoutGeneration); 1326 msg->post(kOffloadPauseMaxUs); 1327 } 1328} 1329 1330void NuPlayer::Renderer::cancelAudioOffloadPauseTimeout() { 1331 if (offloadingAudio()) { 1332 mWakeLock->release(true); 1333 ++mAudioOffloadPauseTimeoutGeneration; 1334 } 1335} 1336 1337status_t NuPlayer::Renderer::onOpenAudioSink( 1338 const sp<AMessage> &format, 1339 bool offloadOnly, 1340 bool hasVideo, 1341 uint32_t flags) { 1342 ALOGV("openAudioSink: offloadOnly(%d) offloadingAudio(%d)", 1343 offloadOnly, offloadingAudio()); 1344 bool audioSinkChanged = false; 1345 1346 int32_t numChannels; 1347 CHECK(format->findInt32("channel-count", &numChannels)); 1348 1349 int32_t channelMask; 1350 if (!format->findInt32("channel-mask", &channelMask)) { 1351 // signal to the AudioSink to derive the mask from count. 1352 channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER; 1353 } 1354 1355 int32_t sampleRate; 1356 CHECK(format->findInt32("sample-rate", &sampleRate)); 1357 1358 if (offloadingAudio()) { 1359 audio_format_t audioFormat = AUDIO_FORMAT_PCM_16_BIT; 1360 AString mime; 1361 CHECK(format->findString("mime", &mime)); 1362 status_t err = mapMimeToAudioFormat(audioFormat, mime.c_str()); 1363 1364 if (err != OK) { 1365 ALOGE("Couldn't map mime \"%s\" to a valid " 1366 "audio_format", mime.c_str()); 1367 onDisableOffloadAudio(); 1368 } else { 1369 ALOGV("Mime \"%s\" mapped to audio_format 0x%x", 1370 mime.c_str(), audioFormat); 1371 1372 int avgBitRate = -1; 1373 format->findInt32("bit-rate", &avgBitRate); 1374 1375 int32_t aacProfile = -1; 1376 if (audioFormat == AUDIO_FORMAT_AAC 1377 && format->findInt32("aac-profile", &aacProfile)) { 1378 // Redefine AAC format as per aac profile 1379 mapAACProfileToAudioFormat( 1380 audioFormat, 1381 aacProfile); 1382 } 1383 1384 audio_offload_info_t offloadInfo = AUDIO_INFO_INITIALIZER; 1385 offloadInfo.duration_us = -1; 1386 format->findInt64( 1387 "durationUs", &offloadInfo.duration_us); 1388 offloadInfo.sample_rate = sampleRate; 1389 offloadInfo.channel_mask = channelMask; 1390 offloadInfo.format = audioFormat; 1391 offloadInfo.stream_type = AUDIO_STREAM_MUSIC; 1392 offloadInfo.bit_rate = avgBitRate; 1393 offloadInfo.has_video = hasVideo; 1394 offloadInfo.is_streaming = true; 1395 1396 if (memcmp(&mCurrentOffloadInfo, &offloadInfo, sizeof(offloadInfo)) == 0) { 1397 ALOGV("openAudioSink: no change in offload mode"); 1398 // no change from previous configuration, everything ok. 1399 return OK; 1400 } 1401 mCurrentPcmInfo = AUDIO_PCMINFO_INITIALIZER; 1402 1403 ALOGV("openAudioSink: try to open AudioSink in offload mode"); 1404 uint32_t offloadFlags = flags; 1405 offloadFlags |= AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD; 1406 offloadFlags &= ~AUDIO_OUTPUT_FLAG_DEEP_BUFFER; 1407 audioSinkChanged = true; 1408 mAudioSink->close(); 1409 err = mAudioSink->open( 1410 sampleRate, 1411 numChannels, 1412 (audio_channel_mask_t)channelMask, 1413 audioFormat, 1414 8 /* bufferCount */, 1415 &NuPlayer::Renderer::AudioSinkCallback, 1416 this, 1417 (audio_output_flags_t)offloadFlags, 1418 &offloadInfo); 1419 1420 if (err == OK) { 1421 if (mPlaybackRate != 1.0) { 1422 mAudioSink->setPlaybackRatePermille( 1423 (int32_t)(mPlaybackRate * 1000 + 0.5f)); 1424 } 1425 // If the playback is offloaded to h/w, we pass 1426 // the HAL some metadata information. 1427 // We don't want to do this for PCM because it 1428 // will be going through the AudioFlinger mixer 1429 // before reaching the hardware. 1430 // TODO 1431 mCurrentOffloadInfo = offloadInfo; 1432 err = mAudioSink->start(); 1433 ALOGV_IF(err == OK, "openAudioSink: offload succeeded"); 1434 } 1435 if (err != OK) { 1436 // Clean up, fall back to non offload mode. 1437 mAudioSink->close(); 1438 onDisableOffloadAudio(); 1439 mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER; 1440 ALOGV("openAudioSink: offload failed"); 1441 } 1442 } 1443 } 1444 if (!offloadOnly && !offloadingAudio()) { 1445 ALOGV("openAudioSink: open AudioSink in NON-offload mode"); 1446 uint32_t pcmFlags = flags; 1447 pcmFlags &= ~AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD; 1448 1449 const PcmInfo info = { 1450 (audio_channel_mask_t)channelMask, 1451 (audio_output_flags_t)pcmFlags, 1452 AUDIO_FORMAT_PCM_16_BIT, // TODO: change to audioFormat 1453 numChannels, 1454 sampleRate 1455 }; 1456 if (memcmp(&mCurrentPcmInfo, &info, sizeof(info)) == 0) { 1457 ALOGV("openAudioSink: no change in pcm mode"); 1458 // no change from previous configuration, everything ok. 1459 return OK; 1460 } 1461 1462 audioSinkChanged = true; 1463 mAudioSink->close(); 1464 mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER; 1465 status_t err = mAudioSink->open( 1466 sampleRate, 1467 numChannels, 1468 (audio_channel_mask_t)channelMask, 1469 AUDIO_FORMAT_PCM_16_BIT, 1470 8 /* bufferCount */, 1471 NULL, 1472 NULL, 1473 (audio_output_flags_t)pcmFlags); 1474 if (err != OK) { 1475 ALOGW("openAudioSink: non offloaded open failed status: %d", err); 1476 mCurrentPcmInfo = AUDIO_PCMINFO_INITIALIZER; 1477 return err; 1478 } 1479 mCurrentPcmInfo = info; 1480 if (mPlaybackRate != 1.0) { 1481 mAudioSink->setPlaybackRatePermille( 1482 (int32_t)(mPlaybackRate * 1000 + 0.5f)); 1483 } 1484 mAudioSink->start(); 1485 } 1486 if (audioSinkChanged) { 1487 onAudioSinkChanged(); 1488 } 1489 if (offloadingAudio()) { 1490 mAudioOffloadTornDown = false; 1491 } 1492 return OK; 1493} 1494 1495void NuPlayer::Renderer::onCloseAudioSink() { 1496 mAudioSink->close(); 1497 mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER; 1498 mCurrentPcmInfo = AUDIO_PCMINFO_INITIALIZER; 1499} 1500 1501} // namespace android 1502 1503