NuPlayerRenderer.cpp revision 15ce5f35187659ad757ee2ea6f70dcef5010c2c2
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 <cutils/properties.h> 24 25#include <media/stagefright/foundation/ABuffer.h> 26#include <media/stagefright/foundation/ADebug.h> 27#include <media/stagefright/foundation/AMessage.h> 28#include <media/stagefright/foundation/AUtils.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 = 60000000ll; 42 43// static 44const int64_t NuPlayer::Renderer::kMinPositionUpdateDelayUs = 100000ll; 45 46static bool sFrameAccurateAVsync = false; 47 48static void readProperties() { 49 char value[PROPERTY_VALUE_MAX]; 50 if (property_get("persist.sys.media.avsync", value, NULL)) { 51 sFrameAccurateAVsync = 52 !strcmp("1", value) || !strcasecmp("true", value); 53 } 54} 55 56NuPlayer::Renderer::Renderer( 57 const sp<MediaPlayerBase::AudioSink> &sink, 58 const sp<AMessage> ¬ify, 59 uint32_t flags) 60 : mAudioSink(sink), 61 mNotify(notify), 62 mFlags(flags), 63 mNumFramesWritten(0), 64 mDrainAudioQueuePending(false), 65 mDrainVideoQueuePending(false), 66 mAudioQueueGeneration(0), 67 mVideoQueueGeneration(0), 68 mAudioFirstAnchorTimeMediaUs(-1), 69 mAnchorTimeMediaUs(-1), 70 mAnchorTimeRealUs(-1), 71 mAnchorNumFramesWritten(-1), 72 mAnchorMaxMediaUs(-1), 73 mVideoLateByUs(0ll), 74 mHasAudio(false), 75 mHasVideo(false), 76 mPauseStartedTimeRealUs(-1), 77 mFlushingAudio(false), 78 mFlushingVideo(false), 79 mSyncQueues(false), 80 mPaused(false), 81 mVideoSampleReceived(false), 82 mVideoRenderingStarted(false), 83 mVideoRenderingStartGeneration(0), 84 mAudioRenderingStartGeneration(0), 85 mAudioOffloadPauseTimeoutGeneration(0), 86 mAudioOffloadTornDown(false), 87 mCurrentOffloadInfo(AUDIO_INFO_INITIALIZER), 88 mTotalBuffersQueued(0), 89 mLastAudioBufferDrained(0) { 90 readProperties(); 91} 92 93NuPlayer::Renderer::~Renderer() { 94 if (offloadingAudio()) { 95 mAudioSink->stop(); 96 mAudioSink->flush(); 97 mAudioSink->close(); 98 } 99} 100 101void NuPlayer::Renderer::queueBuffer( 102 bool audio, 103 const sp<ABuffer> &buffer, 104 const sp<AMessage> ¬ifyConsumed) { 105 sp<AMessage> msg = new AMessage(kWhatQueueBuffer, id()); 106 msg->setInt32("audio", static_cast<int32_t>(audio)); 107 msg->setBuffer("buffer", buffer); 108 msg->setMessage("notifyConsumed", notifyConsumed); 109 msg->post(); 110} 111 112void NuPlayer::Renderer::queueEOS(bool audio, status_t finalResult) { 113 CHECK_NE(finalResult, (status_t)OK); 114 115 sp<AMessage> msg = new AMessage(kWhatQueueEOS, id()); 116 msg->setInt32("audio", static_cast<int32_t>(audio)); 117 msg->setInt32("finalResult", finalResult); 118 msg->post(); 119} 120 121void NuPlayer::Renderer::flush(bool audio) { 122 { 123 Mutex::Autolock autoLock(mFlushLock); 124 if (audio) { 125 if (mFlushingAudio) { 126 return; 127 } 128 mFlushingAudio = true; 129 } else { 130 if (mFlushingVideo) { 131 return; 132 } 133 mFlushingVideo = true; 134 } 135 } 136 137 sp<AMessage> msg = new AMessage(kWhatFlush, id()); 138 msg->setInt32("audio", static_cast<int32_t>(audio)); 139 msg->post(); 140} 141 142void NuPlayer::Renderer::signalTimeDiscontinuity() { 143 Mutex::Autolock autoLock(mLock); 144 // CHECK(mAudioQueue.empty()); 145 // CHECK(mVideoQueue.empty()); 146 setAudioFirstAnchorTime(-1); 147 setAnchorTime(-1, -1); 148 setVideoLateByUs(0); 149 mSyncQueues = false; 150} 151 152void NuPlayer::Renderer::signalAudioSinkChanged() { 153 (new AMessage(kWhatAudioSinkChanged, id()))->post(); 154} 155 156void NuPlayer::Renderer::signalDisableOffloadAudio() { 157 (new AMessage(kWhatDisableOffloadAudio, id()))->post(); 158} 159 160void NuPlayer::Renderer::pause() { 161 (new AMessage(kWhatPause, id()))->post(); 162} 163 164void NuPlayer::Renderer::resume() { 165 (new AMessage(kWhatResume, id()))->post(); 166} 167 168void NuPlayer::Renderer::setVideoFrameRate(float fps) { 169 sp<AMessage> msg = new AMessage(kWhatSetVideoFrameRate, id()); 170 msg->setFloat("frame-rate", fps); 171 msg->post(); 172} 173 174status_t NuPlayer::Renderer::getCurrentPosition(int64_t *mediaUs) { 175 return getCurrentPosition(mediaUs, ALooper::GetNowUs()); 176} 177 178status_t NuPlayer::Renderer::getCurrentPosition( 179 int64_t *mediaUs, int64_t nowUs, bool allowPastQueuedVideo) { 180 Mutex::Autolock autoLock(mTimeLock); 181 if (!mHasAudio && !mHasVideo) { 182 return NO_INIT; 183 } 184 185 if (mAnchorTimeMediaUs < 0) { 186 return NO_INIT; 187 } 188 189 int64_t positionUs = (nowUs - mAnchorTimeRealUs) + mAnchorTimeMediaUs; 190 191 if (mPauseStartedTimeRealUs != -1) { 192 positionUs -= (nowUs - mPauseStartedTimeRealUs); 193 } 194 195 // limit position to the last queued media time (for video only stream 196 // position will be discrete as we don't know how long each frame lasts) 197 if (mAnchorMaxMediaUs >= 0 && !allowPastQueuedVideo) { 198 if (positionUs > mAnchorMaxMediaUs) { 199 positionUs = mAnchorMaxMediaUs; 200 } 201 } 202 203 if (positionUs < mAudioFirstAnchorTimeMediaUs) { 204 positionUs = mAudioFirstAnchorTimeMediaUs; 205 } 206 207 *mediaUs = (positionUs <= 0) ? 0 : positionUs; 208 return OK; 209} 210 211void NuPlayer::Renderer::setHasMedia(bool audio) { 212 Mutex::Autolock autoLock(mTimeLock); 213 if (audio) { 214 mHasAudio = true; 215 } else { 216 mHasVideo = true; 217 } 218} 219 220void NuPlayer::Renderer::setAudioFirstAnchorTime(int64_t mediaUs) { 221 Mutex::Autolock autoLock(mTimeLock); 222 mAudioFirstAnchorTimeMediaUs = mediaUs; 223} 224 225void NuPlayer::Renderer::setAudioFirstAnchorTimeIfNeeded(int64_t mediaUs) { 226 Mutex::Autolock autoLock(mTimeLock); 227 if (mAudioFirstAnchorTimeMediaUs == -1) { 228 mAudioFirstAnchorTimeMediaUs = mediaUs; 229 } 230} 231 232void NuPlayer::Renderer::setAnchorTime( 233 int64_t mediaUs, int64_t realUs, int64_t numFramesWritten, bool resume) { 234 Mutex::Autolock autoLock(mTimeLock); 235 mAnchorTimeMediaUs = mediaUs; 236 mAnchorTimeRealUs = realUs; 237 mAnchorNumFramesWritten = numFramesWritten; 238 if (resume) { 239 mPauseStartedTimeRealUs = -1; 240 } 241} 242 243void NuPlayer::Renderer::setVideoLateByUs(int64_t lateUs) { 244 Mutex::Autolock autoLock(mTimeLock); 245 mVideoLateByUs = lateUs; 246} 247 248int64_t NuPlayer::Renderer::getVideoLateByUs() { 249 Mutex::Autolock autoLock(mTimeLock); 250 return mVideoLateByUs; 251} 252 253void NuPlayer::Renderer::setPauseStartedTimeRealUs(int64_t realUs) { 254 Mutex::Autolock autoLock(mTimeLock); 255 mPauseStartedTimeRealUs = realUs; 256} 257 258bool NuPlayer::Renderer::openAudioSink( 259 const sp<AMessage> &format, 260 bool offloadOnly, 261 bool hasVideo, 262 uint32_t flags) { 263 sp<AMessage> msg = new AMessage(kWhatOpenAudioSink, id()); 264 msg->setMessage("format", format); 265 msg->setInt32("offload-only", offloadOnly); 266 msg->setInt32("has-video", hasVideo); 267 msg->setInt32("flags", flags); 268 269 sp<AMessage> response; 270 msg->postAndAwaitResponse(&response); 271 272 int32_t offload; 273 CHECK(response->findInt32("offload", &offload)); 274 return (offload != 0); 275} 276 277void NuPlayer::Renderer::closeAudioSink() { 278 sp<AMessage> msg = new AMessage(kWhatCloseAudioSink, id()); 279 280 sp<AMessage> response; 281 msg->postAndAwaitResponse(&response); 282} 283 284void NuPlayer::Renderer::onMessageReceived(const sp<AMessage> &msg) { 285 switch (msg->what()) { 286 case kWhatOpenAudioSink: 287 { 288 sp<AMessage> format; 289 CHECK(msg->findMessage("format", &format)); 290 291 int32_t offloadOnly; 292 CHECK(msg->findInt32("offload-only", &offloadOnly)); 293 294 int32_t hasVideo; 295 CHECK(msg->findInt32("has-video", &hasVideo)); 296 297 uint32_t flags; 298 CHECK(msg->findInt32("flags", (int32_t *)&flags)); 299 300 bool offload = onOpenAudioSink(format, offloadOnly, hasVideo, flags); 301 302 sp<AMessage> response = new AMessage; 303 response->setInt32("offload", offload); 304 305 uint32_t replyID; 306 CHECK(msg->senderAwaitsResponse(&replyID)); 307 response->postReply(replyID); 308 309 break; 310 } 311 312 case kWhatCloseAudioSink: 313 { 314 uint32_t replyID; 315 CHECK(msg->senderAwaitsResponse(&replyID)); 316 317 onCloseAudioSink(); 318 319 sp<AMessage> response = new AMessage; 320 response->postReply(replyID); 321 break; 322 } 323 324 case kWhatStopAudioSink: 325 { 326 mAudioSink->stop(); 327 break; 328 } 329 330 case kWhatDrainAudioQueue: 331 { 332 int32_t generation; 333 CHECK(msg->findInt32("generation", &generation)); 334 if (generation != mAudioQueueGeneration) { 335 break; 336 } 337 338 mDrainAudioQueuePending = false; 339 340 if (onDrainAudioQueue()) { 341 uint32_t numFramesPlayed; 342 CHECK_EQ(mAudioSink->getPosition(&numFramesPlayed), 343 (status_t)OK); 344 345 uint32_t numFramesPendingPlayout = 346 mNumFramesWritten - numFramesPlayed; 347 348 // This is how long the audio sink will have data to 349 // play back. 350 int64_t delayUs = 351 mAudioSink->msecsPerFrame() 352 * numFramesPendingPlayout * 1000ll; 353 354 // Let's give it more data after about half that time 355 // has elapsed. 356 // kWhatDrainAudioQueue is used for non-offloading mode, 357 // and mLock is used only for offloading mode. Therefore, 358 // no need to acquire mLock here. 359 postDrainAudioQueue_l(delayUs / 2); 360 } 361 break; 362 } 363 364 case kWhatDrainVideoQueue: 365 { 366 int32_t generation; 367 CHECK(msg->findInt32("generation", &generation)); 368 if (generation != mVideoQueueGeneration) { 369 break; 370 } 371 372 mDrainVideoQueuePending = false; 373 374 onDrainVideoQueue(); 375 376 postDrainVideoQueue(); 377 break; 378 } 379 380 case kWhatPostDrainVideoQueue: 381 { 382 int32_t generation; 383 CHECK(msg->findInt32("generation", &generation)); 384 if (generation != mVideoQueueGeneration) { 385 break; 386 } 387 388 mDrainVideoQueuePending = false; 389 postDrainVideoQueue(); 390 break; 391 } 392 393 case kWhatQueueBuffer: 394 { 395 onQueueBuffer(msg); 396 break; 397 } 398 399 case kWhatQueueEOS: 400 { 401 onQueueEOS(msg); 402 break; 403 } 404 405 case kWhatFlush: 406 { 407 onFlush(msg); 408 break; 409 } 410 411 case kWhatAudioSinkChanged: 412 { 413 onAudioSinkChanged(); 414 break; 415 } 416 417 case kWhatDisableOffloadAudio: 418 { 419 onDisableOffloadAudio(); 420 break; 421 } 422 423 case kWhatPause: 424 { 425 onPause(); 426 break; 427 } 428 429 case kWhatResume: 430 { 431 onResume(); 432 break; 433 } 434 435 case kWhatSetVideoFrameRate: 436 { 437 float fps; 438 CHECK(msg->findFloat("frame-rate", &fps)); 439 onSetVideoFrameRate(fps); 440 break; 441 } 442 443 case kWhatAudioOffloadTearDown: 444 { 445 onAudioOffloadTearDown(kDueToError); 446 break; 447 } 448 449 case kWhatAudioOffloadPauseTimeout: 450 { 451 int32_t generation; 452 CHECK(msg->findInt32("generation", &generation)); 453 if (generation != mAudioOffloadPauseTimeoutGeneration) { 454 break; 455 } 456 ALOGV("Audio Offload tear down due to pause timeout."); 457 onAudioOffloadTearDown(kDueToTimeout); 458 break; 459 } 460 461 default: 462 TRESPASS(); 463 break; 464 } 465} 466 467void NuPlayer::Renderer::postDrainAudioQueue_l(int64_t delayUs) { 468 if (mDrainAudioQueuePending || mSyncQueues || mPaused 469 || offloadingAudio()) { 470 return; 471 } 472 473 if (mAudioQueue.empty()) { 474 return; 475 } 476 477 mDrainAudioQueuePending = true; 478 sp<AMessage> msg = new AMessage(kWhatDrainAudioQueue, id()); 479 msg->setInt32("generation", mAudioQueueGeneration); 480 msg->post(delayUs); 481} 482 483void NuPlayer::Renderer::prepareForMediaRenderingStart() { 484 mAudioRenderingStartGeneration = mAudioQueueGeneration; 485 mVideoRenderingStartGeneration = mVideoQueueGeneration; 486} 487 488void NuPlayer::Renderer::notifyIfMediaRenderingStarted() { 489 if (mVideoRenderingStartGeneration == mVideoQueueGeneration && 490 mAudioRenderingStartGeneration == mAudioQueueGeneration) { 491 mVideoRenderingStartGeneration = -1; 492 mAudioRenderingStartGeneration = -1; 493 494 sp<AMessage> notify = mNotify->dup(); 495 notify->setInt32("what", kWhatMediaRenderingStart); 496 notify->post(); 497 } 498} 499 500// static 501size_t NuPlayer::Renderer::AudioSinkCallback( 502 MediaPlayerBase::AudioSink * /* audioSink */, 503 void *buffer, 504 size_t size, 505 void *cookie, 506 MediaPlayerBase::AudioSink::cb_event_t event) { 507 NuPlayer::Renderer *me = (NuPlayer::Renderer *)cookie; 508 509 switch (event) { 510 case MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER: 511 { 512 return me->fillAudioBuffer(buffer, size); 513 break; 514 } 515 516 case MediaPlayerBase::AudioSink::CB_EVENT_STREAM_END: 517 { 518 me->notifyEOS(true /* audio */, ERROR_END_OF_STREAM); 519 break; 520 } 521 522 case MediaPlayerBase::AudioSink::CB_EVENT_TEAR_DOWN: 523 { 524 me->notifyAudioOffloadTearDown(); 525 break; 526 } 527 } 528 529 return 0; 530} 531 532size_t NuPlayer::Renderer::fillAudioBuffer(void *buffer, size_t size) { 533 Mutex::Autolock autoLock(mLock); 534 535 if (!offloadingAudio() || mPaused) { 536 return 0; 537 } 538 539 bool hasEOS = false; 540 541 size_t sizeCopied = 0; 542 bool firstEntry = true; 543 while (sizeCopied < size && !mAudioQueue.empty()) { 544 QueueEntry *entry = &*mAudioQueue.begin(); 545 546 if (entry->mBuffer == NULL) { // EOS 547 hasEOS = true; 548 mAudioQueue.erase(mAudioQueue.begin()); 549 entry = NULL; 550 break; 551 } 552 553 if (firstEntry && entry->mOffset == 0) { 554 firstEntry = false; 555 int64_t mediaTimeUs; 556 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 557 ALOGV("rendering audio at media time %.2f secs", mediaTimeUs / 1E6); 558 setAudioFirstAnchorTimeIfNeeded(mediaTimeUs); 559 } 560 561 size_t copy = entry->mBuffer->size() - entry->mOffset; 562 size_t sizeRemaining = size - sizeCopied; 563 if (copy > sizeRemaining) { 564 copy = sizeRemaining; 565 } 566 567 memcpy((char *)buffer + sizeCopied, 568 entry->mBuffer->data() + entry->mOffset, 569 copy); 570 571 entry->mOffset += copy; 572 if (entry->mOffset == entry->mBuffer->size()) { 573 entry->mNotifyConsumed->post(); 574 mAudioQueue.erase(mAudioQueue.begin()); 575 entry = NULL; 576 } 577 sizeCopied += copy; 578 notifyIfMediaRenderingStarted(); 579 } 580 581 if (mAudioFirstAnchorTimeMediaUs >= 0) { 582 int64_t nowUs = ALooper::GetNowUs(); 583 setAnchorTime(mAudioFirstAnchorTimeMediaUs, nowUs - getPlayedOutAudioDurationUs(nowUs)); 584 } 585 586 // we don't know how much data we are queueing for offloaded tracks 587 mAnchorMaxMediaUs = -1; 588 589 if (hasEOS) { 590 (new AMessage(kWhatStopAudioSink, id()))->post(); 591 } 592 593 return sizeCopied; 594} 595 596bool NuPlayer::Renderer::onDrainAudioQueue() { 597 uint32_t numFramesPlayed; 598 if (mAudioSink->getPosition(&numFramesPlayed) != OK) { 599 return false; 600 } 601 602 ssize_t numFramesAvailableToWrite = 603 mAudioSink->frameCount() - (mNumFramesWritten - numFramesPlayed); 604 605#if 0 606 if (numFramesAvailableToWrite == mAudioSink->frameCount()) { 607 ALOGI("audio sink underrun"); 608 } else { 609 ALOGV("audio queue has %d frames left to play", 610 mAudioSink->frameCount() - numFramesAvailableToWrite); 611 } 612#endif 613 614 size_t numBytesAvailableToWrite = 615 numFramesAvailableToWrite * mAudioSink->frameSize(); 616 617 while (numBytesAvailableToWrite > 0 && !mAudioQueue.empty()) { 618 QueueEntry *entry = &*mAudioQueue.begin(); 619 620 mLastAudioBufferDrained = entry->mBufferOrdinal; 621 622 if (entry->mBuffer == NULL) { 623 // EOS 624 int64_t postEOSDelayUs = 0; 625 if (mAudioSink->needsTrailingPadding()) { 626 postEOSDelayUs = getPendingAudioPlayoutDurationUs(ALooper::GetNowUs()); 627 } 628 notifyEOS(true /* audio */, entry->mFinalResult, postEOSDelayUs); 629 630 mAudioQueue.erase(mAudioQueue.begin()); 631 entry = NULL; 632 // Need to stop the track here, because that will play out the last 633 // little bit at the end of the file. Otherwise short files won't play. 634 mAudioSink->stop(); 635 mNumFramesWritten = 0; 636 return false; 637 } 638 639 if (entry->mOffset == 0) { 640 int64_t mediaTimeUs; 641 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 642 ALOGV("rendering audio at media time %.2f secs", mediaTimeUs / 1E6); 643 onNewAudioMediaTime(mediaTimeUs); 644 } 645 646 size_t copy = entry->mBuffer->size() - entry->mOffset; 647 if (copy > numBytesAvailableToWrite) { 648 copy = numBytesAvailableToWrite; 649 } 650 651 ssize_t written = mAudioSink->write(entry->mBuffer->data() + entry->mOffset, copy); 652 if (written < 0) { 653 // An error in AudioSink write is fatal here. 654 LOG_ALWAYS_FATAL("AudioSink write error(%zd) when writing %zu bytes", written, copy); 655 } 656 657 entry->mOffset += written; 658 if (entry->mOffset == entry->mBuffer->size()) { 659 entry->mNotifyConsumed->post(); 660 mAudioQueue.erase(mAudioQueue.begin()); 661 662 entry = NULL; 663 } 664 665 numBytesAvailableToWrite -= written; 666 size_t copiedFrames = written / mAudioSink->frameSize(); 667 mNumFramesWritten += copiedFrames; 668 669 notifyIfMediaRenderingStarted(); 670 671 if (written != (ssize_t)copy) { 672 // A short count was received from AudioSink::write() 673 // 674 // AudioSink write should block until exactly the number of bytes are delivered. 675 // But it may return with a short count (without an error) when: 676 // 677 // 1) Size to be copied is not a multiple of the frame size. We consider this fatal. 678 // 2) AudioSink is an AudioCache for data retrieval, and the AudioCache is exceeded. 679 680 // (Case 1) 681 // Must be a multiple of the frame size. If it is not a multiple of a frame size, it 682 // needs to fail, as we should not carry over fractional frames between calls. 683 CHECK_EQ(copy % mAudioSink->frameSize(), 0); 684 685 // (Case 2) 686 // Return early to the caller. 687 // Beware of calling immediately again as this may busy-loop if you are not careful. 688 ALOGW("AudioSink write short frame count %zd < %zu", written, copy); 689 break; 690 } 691 } 692 mAnchorMaxMediaUs = 693 mAnchorTimeMediaUs + 694 (int64_t)(max((long long)mNumFramesWritten - mAnchorNumFramesWritten, 0LL) 695 * 1000LL * mAudioSink->msecsPerFrame()); 696 697 return !mAudioQueue.empty(); 698} 699 700int64_t NuPlayer::Renderer::getPendingAudioPlayoutDurationUs(int64_t nowUs) { 701 int64_t writtenAudioDurationUs = 702 mNumFramesWritten * 1000LL * mAudioSink->msecsPerFrame(); 703 return writtenAudioDurationUs - getPlayedOutAudioDurationUs(nowUs); 704} 705 706int64_t NuPlayer::Renderer::getRealTimeUs(int64_t mediaTimeUs, int64_t nowUs) { 707 int64_t currentPositionUs; 708 if (getCurrentPosition(¤tPositionUs, nowUs, true /* allowPastQueuedVideo */) != OK) { 709 // If failed to get current position, e.g. due to audio clock is not ready, then just 710 // play out video immediately without delay. 711 return nowUs; 712 } 713 return (mediaTimeUs - currentPositionUs) + nowUs; 714} 715 716void NuPlayer::Renderer::onNewAudioMediaTime(int64_t mediaTimeUs) { 717 // TRICKY: vorbis decoder generates multiple frames with the same 718 // timestamp, so only update on the first frame with a given timestamp 719 if (mediaTimeUs == mAnchorTimeMediaUs) { 720 return; 721 } 722 setAudioFirstAnchorTimeIfNeeded(mediaTimeUs); 723 int64_t nowUs = ALooper::GetNowUs(); 724 setAnchorTime( 725 mediaTimeUs, nowUs + getPendingAudioPlayoutDurationUs(nowUs), mNumFramesWritten); 726} 727 728void NuPlayer::Renderer::postDrainVideoQueue() { 729 if (mDrainVideoQueuePending 730 || mSyncQueues 731 || (mPaused && mVideoSampleReceived)) { 732 return; 733 } 734 735 if (mVideoQueue.empty()) { 736 return; 737 } 738 739 QueueEntry &entry = *mVideoQueue.begin(); 740 741 sp<AMessage> msg = new AMessage(kWhatDrainVideoQueue, id()); 742 msg->setInt32("generation", mVideoQueueGeneration); 743 744 if (entry.mBuffer == NULL) { 745 // EOS doesn't carry a timestamp. 746 msg->post(); 747 mDrainVideoQueuePending = true; 748 return; 749 } 750 751 int64_t delayUs; 752 int64_t nowUs = ALooper::GetNowUs(); 753 int64_t realTimeUs; 754 if (mFlags & FLAG_REAL_TIME) { 755 int64_t mediaTimeUs; 756 CHECK(entry.mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 757 realTimeUs = mediaTimeUs; 758 } else { 759 int64_t mediaTimeUs; 760 CHECK(entry.mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 761 762 if (mAnchorTimeMediaUs < 0) { 763 setAnchorTime(mediaTimeUs, nowUs); 764 realTimeUs = nowUs; 765 } else { 766 realTimeUs = getRealTimeUs(mediaTimeUs, nowUs); 767 } 768 if (!mHasAudio) { 769 mAnchorMaxMediaUs = mediaTimeUs + 100000; // smooth out videos >= 10fps 770 } 771 772 // Heuristics to handle situation when media time changed without a 773 // discontinuity. If we have not drained an audio buffer that was 774 // received after this buffer, repost in 10 msec. Otherwise repost 775 // in 500 msec. 776 delayUs = realTimeUs - nowUs; 777 if (delayUs > 500000) { 778 int64_t postDelayUs = 500000; 779 if (mHasAudio && (mLastAudioBufferDrained - entry.mBufferOrdinal) <= 0) { 780 postDelayUs = 10000; 781 } 782 msg->setWhat(kWhatPostDrainVideoQueue); 783 msg->post(postDelayUs); 784 mVideoScheduler->restart(); 785 ALOGI("possible video time jump of %dms, retrying in %dms", 786 (int)(delayUs / 1000), (int)(postDelayUs / 1000)); 787 mDrainVideoQueuePending = true; 788 return; 789 } 790 } 791 792 realTimeUs = mVideoScheduler->schedule(realTimeUs * 1000) / 1000; 793 int64_t twoVsyncsUs = 2 * (mVideoScheduler->getVsyncPeriod() / 1000); 794 795 delayUs = realTimeUs - nowUs; 796 797 ALOGW_IF(delayUs > 500000, "unusually high delayUs: %" PRId64, delayUs); 798 // post 2 display refreshes before rendering is due 799 // FIXME currently this increases power consumption, so unless frame-accurate 800 // AV sync is requested, post closer to required render time (at 0.63 vsyncs) 801 if (!sFrameAccurateAVsync) { 802 twoVsyncsUs >>= 4; 803 } 804 msg->post(delayUs > twoVsyncsUs ? delayUs - twoVsyncsUs : 0); 805 806 mDrainVideoQueuePending = true; 807} 808 809void NuPlayer::Renderer::onDrainVideoQueue() { 810 if (mVideoQueue.empty()) { 811 return; 812 } 813 814 QueueEntry *entry = &*mVideoQueue.begin(); 815 816 if (entry->mBuffer == NULL) { 817 // EOS 818 819 notifyEOS(false /* audio */, entry->mFinalResult); 820 821 mVideoQueue.erase(mVideoQueue.begin()); 822 entry = NULL; 823 824 setVideoLateByUs(0); 825 return; 826 } 827 828 int64_t nowUs = -1; 829 int64_t realTimeUs; 830 if (mFlags & FLAG_REAL_TIME) { 831 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &realTimeUs)); 832 } else { 833 int64_t mediaTimeUs; 834 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 835 836 nowUs = ALooper::GetNowUs(); 837 realTimeUs = getRealTimeUs(mediaTimeUs, nowUs); 838 } 839 840 bool tooLate = false; 841 842 if (!mPaused) { 843 if (nowUs == -1) { 844 nowUs = ALooper::GetNowUs(); 845 } 846 setVideoLateByUs(nowUs - realTimeUs); 847 tooLate = (mVideoLateByUs > 40000); 848 849 if (tooLate) { 850 ALOGV("video late by %lld us (%.2f secs)", 851 mVideoLateByUs, mVideoLateByUs / 1E6); 852 } else { 853 ALOGV("rendering video at media time %.2f secs", 854 (mFlags & FLAG_REAL_TIME ? realTimeUs : 855 (realTimeUs + mAnchorTimeMediaUs - mAnchorTimeRealUs)) / 1E6); 856 } 857 } else { 858 setVideoLateByUs(0); 859 if (!mVideoSampleReceived && !mHasAudio) { 860 // This will ensure that the first frame after a flush won't be used as anchor 861 // when renderer is in paused state, because resume can happen any time after seek. 862 setAnchorTime(-1, -1); 863 } 864 } 865 866 entry->mNotifyConsumed->setInt64("timestampNs", realTimeUs * 1000ll); 867 entry->mNotifyConsumed->setInt32("render", !tooLate); 868 entry->mNotifyConsumed->post(); 869 mVideoQueue.erase(mVideoQueue.begin()); 870 entry = NULL; 871 872 mVideoSampleReceived = true; 873 874 if (!mPaused) { 875 if (!mVideoRenderingStarted) { 876 mVideoRenderingStarted = true; 877 notifyVideoRenderingStart(); 878 } 879 notifyIfMediaRenderingStarted(); 880 } 881} 882 883void NuPlayer::Renderer::notifyVideoRenderingStart() { 884 sp<AMessage> notify = mNotify->dup(); 885 notify->setInt32("what", kWhatVideoRenderingStart); 886 notify->post(); 887} 888 889void NuPlayer::Renderer::notifyEOS(bool audio, status_t finalResult, int64_t delayUs) { 890 sp<AMessage> notify = mNotify->dup(); 891 notify->setInt32("what", kWhatEOS); 892 notify->setInt32("audio", static_cast<int32_t>(audio)); 893 notify->setInt32("finalResult", finalResult); 894 notify->post(delayUs); 895} 896 897void NuPlayer::Renderer::notifyAudioOffloadTearDown() { 898 (new AMessage(kWhatAudioOffloadTearDown, id()))->post(); 899} 900 901void NuPlayer::Renderer::onQueueBuffer(const sp<AMessage> &msg) { 902 int32_t audio; 903 CHECK(msg->findInt32("audio", &audio)); 904 905 setHasMedia(audio); 906 907 if (mHasVideo) { 908 if (mVideoScheduler == NULL) { 909 mVideoScheduler = new VideoFrameScheduler(); 910 mVideoScheduler->init(); 911 } 912 } 913 914 if (dropBufferWhileFlushing(audio, msg)) { 915 return; 916 } 917 918 sp<ABuffer> buffer; 919 CHECK(msg->findBuffer("buffer", &buffer)); 920 921 sp<AMessage> notifyConsumed; 922 CHECK(msg->findMessage("notifyConsumed", ¬ifyConsumed)); 923 924 QueueEntry entry; 925 entry.mBuffer = buffer; 926 entry.mNotifyConsumed = notifyConsumed; 927 entry.mOffset = 0; 928 entry.mFinalResult = OK; 929 entry.mBufferOrdinal = ++mTotalBuffersQueued; 930 931 if (audio) { 932 Mutex::Autolock autoLock(mLock); 933 mAudioQueue.push_back(entry); 934 postDrainAudioQueue_l(); 935 } else { 936 mVideoQueue.push_back(entry); 937 postDrainVideoQueue(); 938 } 939 940 Mutex::Autolock autoLock(mLock); 941 if (!mSyncQueues || mAudioQueue.empty() || mVideoQueue.empty()) { 942 return; 943 } 944 945 sp<ABuffer> firstAudioBuffer = (*mAudioQueue.begin()).mBuffer; 946 sp<ABuffer> firstVideoBuffer = (*mVideoQueue.begin()).mBuffer; 947 948 if (firstAudioBuffer == NULL || firstVideoBuffer == NULL) { 949 // EOS signalled on either queue. 950 syncQueuesDone_l(); 951 return; 952 } 953 954 int64_t firstAudioTimeUs; 955 int64_t firstVideoTimeUs; 956 CHECK(firstAudioBuffer->meta() 957 ->findInt64("timeUs", &firstAudioTimeUs)); 958 CHECK(firstVideoBuffer->meta() 959 ->findInt64("timeUs", &firstVideoTimeUs)); 960 961 int64_t diff = firstVideoTimeUs - firstAudioTimeUs; 962 963 ALOGV("queueDiff = %.2f secs", diff / 1E6); 964 965 if (diff > 100000ll) { 966 // Audio data starts More than 0.1 secs before video. 967 // Drop some audio. 968 969 (*mAudioQueue.begin()).mNotifyConsumed->post(); 970 mAudioQueue.erase(mAudioQueue.begin()); 971 return; 972 } 973 974 syncQueuesDone_l(); 975} 976 977void NuPlayer::Renderer::syncQueuesDone_l() { 978 if (!mSyncQueues) { 979 return; 980 } 981 982 mSyncQueues = false; 983 984 if (!mAudioQueue.empty()) { 985 postDrainAudioQueue_l(); 986 } 987 988 if (!mVideoQueue.empty()) { 989 postDrainVideoQueue(); 990 } 991} 992 993void NuPlayer::Renderer::onQueueEOS(const sp<AMessage> &msg) { 994 int32_t audio; 995 CHECK(msg->findInt32("audio", &audio)); 996 997 if (dropBufferWhileFlushing(audio, msg)) { 998 return; 999 } 1000 1001 int32_t finalResult; 1002 CHECK(msg->findInt32("finalResult", &finalResult)); 1003 1004 QueueEntry entry; 1005 entry.mOffset = 0; 1006 entry.mFinalResult = finalResult; 1007 1008 if (audio) { 1009 Mutex::Autolock autoLock(mLock); 1010 if (mAudioQueue.empty() && mSyncQueues) { 1011 syncQueuesDone_l(); 1012 } 1013 mAudioQueue.push_back(entry); 1014 postDrainAudioQueue_l(); 1015 } else { 1016 if (mVideoQueue.empty() && mSyncQueues) { 1017 Mutex::Autolock autoLock(mLock); 1018 syncQueuesDone_l(); 1019 } 1020 mVideoQueue.push_back(entry); 1021 postDrainVideoQueue(); 1022 } 1023} 1024 1025void NuPlayer::Renderer::onFlush(const sp<AMessage> &msg) { 1026 int32_t audio; 1027 CHECK(msg->findInt32("audio", &audio)); 1028 1029 { 1030 Mutex::Autolock autoLock(mFlushLock); 1031 if (audio) { 1032 mFlushingAudio = false; 1033 } else { 1034 mFlushingVideo = false; 1035 } 1036 } 1037 1038 // If we're currently syncing the queues, i.e. dropping audio while 1039 // aligning the first audio/video buffer times and only one of the 1040 // two queues has data, we may starve that queue by not requesting 1041 // more buffers from the decoder. If the other source then encounters 1042 // a discontinuity that leads to flushing, we'll never find the 1043 // corresponding discontinuity on the other queue. 1044 // Therefore we'll stop syncing the queues if at least one of them 1045 // is flushed. 1046 { 1047 Mutex::Autolock autoLock(mLock); 1048 syncQueuesDone_l(); 1049 setPauseStartedTimeRealUs(-1); 1050 } 1051 1052 ALOGV("flushing %s", audio ? "audio" : "video"); 1053 if (audio) { 1054 { 1055 Mutex::Autolock autoLock(mLock); 1056 flushQueue(&mAudioQueue); 1057 1058 ++mAudioQueueGeneration; 1059 prepareForMediaRenderingStart(); 1060 1061 if (offloadingAudio()) { 1062 setAudioFirstAnchorTime(-1); 1063 } 1064 } 1065 1066 mDrainAudioQueuePending = false; 1067 1068 if (offloadingAudio()) { 1069 mAudioSink->pause(); 1070 mAudioSink->flush(); 1071 mAudioSink->start(); 1072 } 1073 } else { 1074 flushQueue(&mVideoQueue); 1075 1076 mDrainVideoQueuePending = false; 1077 ++mVideoQueueGeneration; 1078 1079 if (mVideoScheduler != NULL) { 1080 mVideoScheduler->restart(); 1081 } 1082 1083 prepareForMediaRenderingStart(); 1084 } 1085 1086 mVideoSampleReceived = false; 1087 notifyFlushComplete(audio); 1088} 1089 1090void NuPlayer::Renderer::flushQueue(List<QueueEntry> *queue) { 1091 while (!queue->empty()) { 1092 QueueEntry *entry = &*queue->begin(); 1093 1094 if (entry->mBuffer != NULL) { 1095 entry->mNotifyConsumed->post(); 1096 } 1097 1098 queue->erase(queue->begin()); 1099 entry = NULL; 1100 } 1101} 1102 1103void NuPlayer::Renderer::notifyFlushComplete(bool audio) { 1104 sp<AMessage> notify = mNotify->dup(); 1105 notify->setInt32("what", kWhatFlushComplete); 1106 notify->setInt32("audio", static_cast<int32_t>(audio)); 1107 notify->post(); 1108} 1109 1110bool NuPlayer::Renderer::dropBufferWhileFlushing( 1111 bool audio, const sp<AMessage> &msg) { 1112 bool flushing = false; 1113 1114 { 1115 Mutex::Autolock autoLock(mFlushLock); 1116 if (audio) { 1117 flushing = mFlushingAudio; 1118 } else { 1119 flushing = mFlushingVideo; 1120 } 1121 } 1122 1123 if (!flushing) { 1124 return false; 1125 } 1126 1127 sp<AMessage> notifyConsumed; 1128 if (msg->findMessage("notifyConsumed", ¬ifyConsumed)) { 1129 notifyConsumed->post(); 1130 } 1131 1132 return true; 1133} 1134 1135void NuPlayer::Renderer::onAudioSinkChanged() { 1136 if (offloadingAudio()) { 1137 return; 1138 } 1139 CHECK(!mDrainAudioQueuePending); 1140 mNumFramesWritten = 0; 1141 mAnchorNumFramesWritten = -1; 1142 uint32_t written; 1143 if (mAudioSink->getFramesWritten(&written) == OK) { 1144 mNumFramesWritten = written; 1145 } 1146} 1147 1148void NuPlayer::Renderer::onDisableOffloadAudio() { 1149 Mutex::Autolock autoLock(mLock); 1150 mFlags &= ~FLAG_OFFLOAD_AUDIO; 1151 ++mAudioQueueGeneration; 1152} 1153 1154void NuPlayer::Renderer::onPause() { 1155 if (mPaused) { 1156 ALOGW("Renderer::onPause() called while already paused!"); 1157 return; 1158 } 1159 { 1160 Mutex::Autolock autoLock(mLock); 1161 ++mAudioQueueGeneration; 1162 ++mVideoQueueGeneration; 1163 prepareForMediaRenderingStart(); 1164 mPaused = true; 1165 setPauseStartedTimeRealUs(ALooper::GetNowUs()); 1166 } 1167 1168 mDrainAudioQueuePending = false; 1169 mDrainVideoQueuePending = false; 1170 1171 if (mHasAudio) { 1172 mAudioSink->pause(); 1173 startAudioOffloadPauseTimeout(); 1174 } 1175 1176 ALOGV("now paused audio queue has %d entries, video has %d entries", 1177 mAudioQueue.size(), mVideoQueue.size()); 1178} 1179 1180void NuPlayer::Renderer::onResume() { 1181 readProperties(); 1182 1183 if (!mPaused) { 1184 return; 1185 } 1186 1187 if (mHasAudio) { 1188 cancelAudioOffloadPauseTimeout(); 1189 mAudioSink->start(); 1190 } 1191 1192 Mutex::Autolock autoLock(mLock); 1193 mPaused = false; 1194 if (mPauseStartedTimeRealUs != -1) { 1195 int64_t newAnchorRealUs = 1196 mAnchorTimeRealUs + ALooper::GetNowUs() - mPauseStartedTimeRealUs; 1197 setAnchorTime( 1198 mAnchorTimeMediaUs, newAnchorRealUs, mAnchorNumFramesWritten, true /* resume */); 1199 } 1200 1201 if (!mAudioQueue.empty()) { 1202 postDrainAudioQueue_l(); 1203 } 1204 1205 if (!mVideoQueue.empty()) { 1206 postDrainVideoQueue(); 1207 } 1208} 1209 1210void NuPlayer::Renderer::onSetVideoFrameRate(float fps) { 1211 if (mVideoScheduler == NULL) { 1212 mVideoScheduler = new VideoFrameScheduler(); 1213 } 1214 mVideoScheduler->init(fps); 1215} 1216 1217// TODO: Remove unnecessary calls to getPlayedOutAudioDurationUs() 1218// as it acquires locks and may query the audio driver. 1219// 1220// Some calls could conceivably retrieve extrapolated data instead of 1221// accessing getTimestamp() or getPosition() every time a data buffer with 1222// a media time is received. 1223// 1224int64_t NuPlayer::Renderer::getPlayedOutAudioDurationUs(int64_t nowUs) { 1225 uint32_t numFramesPlayed; 1226 int64_t numFramesPlayedAt; 1227 AudioTimestamp ts; 1228 static const int64_t kStaleTimestamp100ms = 100000; 1229 1230 status_t res = mAudioSink->getTimestamp(ts); 1231 if (res == OK) { // case 1: mixing audio tracks and offloaded tracks. 1232 numFramesPlayed = ts.mPosition; 1233 numFramesPlayedAt = 1234 ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000; 1235 const int64_t timestampAge = nowUs - numFramesPlayedAt; 1236 if (timestampAge > kStaleTimestamp100ms) { 1237 // This is an audio FIXME. 1238 // getTimestamp returns a timestamp which may come from audio mixing threads. 1239 // After pausing, the MixerThread may go idle, thus the mTime estimate may 1240 // become stale. Assuming that the MixerThread runs 20ms, with FastMixer at 5ms, 1241 // the max latency should be about 25ms with an average around 12ms (to be verified). 1242 // For safety we use 100ms. 1243 ALOGV("getTimestamp: returned stale timestamp nowUs(%lld) numFramesPlayedAt(%lld)", 1244 (long long)nowUs, (long long)numFramesPlayedAt); 1245 numFramesPlayedAt = nowUs - kStaleTimestamp100ms; 1246 } 1247 //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAt); 1248 } else if (res == WOULD_BLOCK) { // case 2: transitory state on start of a new track 1249 numFramesPlayed = 0; 1250 numFramesPlayedAt = nowUs; 1251 //ALOGD("getTimestamp: WOULD_BLOCK %d %lld", 1252 // numFramesPlayed, (long long)numFramesPlayedAt); 1253 } else { // case 3: transitory at new track or audio fast tracks. 1254 res = mAudioSink->getPosition(&numFramesPlayed); 1255 CHECK_EQ(res, (status_t)OK); 1256 numFramesPlayedAt = nowUs; 1257 numFramesPlayedAt += 1000LL * mAudioSink->latency() / 2; /* XXX */ 1258 //ALOGD("getPosition: %d %lld", numFramesPlayed, numFramesPlayedAt); 1259 } 1260 1261 // TODO: remove the (int32_t) casting below as it may overflow at 12.4 hours. 1262 //CHECK_EQ(numFramesPlayed & (1 << 31), 0); // can't be negative until 12.4 hrs, test 1263 int64_t durationUs = (int64_t)((int32_t)numFramesPlayed * 1000LL * mAudioSink->msecsPerFrame()) 1264 + nowUs - numFramesPlayedAt; 1265 if (durationUs < 0) { 1266 // Occurs when numFramesPlayed position is very small and the following: 1267 // (1) In case 1, the time nowUs is computed before getTimestamp() is called and 1268 // numFramesPlayedAt is greater than nowUs by time more than numFramesPlayed. 1269 // (2) In case 3, using getPosition and adding mAudioSink->latency() to 1270 // numFramesPlayedAt, by a time amount greater than numFramesPlayed. 1271 // 1272 // Both of these are transitory conditions. 1273 ALOGV("getPlayedOutAudioDurationUs: negative duration %lld set to zero", (long long)durationUs); 1274 durationUs = 0; 1275 } 1276 ALOGV("getPlayedOutAudioDurationUs(%lld) nowUs(%lld) frames(%u) framesAt(%lld)", 1277 (long long)durationUs, (long long)nowUs, numFramesPlayed, (long long)numFramesPlayedAt); 1278 return durationUs; 1279} 1280 1281void NuPlayer::Renderer::onAudioOffloadTearDown(AudioOffloadTearDownReason reason) { 1282 if (mAudioOffloadTornDown) { 1283 return; 1284 } 1285 mAudioOffloadTornDown = true; 1286 1287 int64_t currentPositionUs; 1288 if (getCurrentPosition(¤tPositionUs) != OK) { 1289 currentPositionUs = 0; 1290 } 1291 1292 mAudioSink->stop(); 1293 mAudioSink->flush(); 1294 1295 sp<AMessage> notify = mNotify->dup(); 1296 notify->setInt32("what", kWhatAudioOffloadTearDown); 1297 notify->setInt64("positionUs", currentPositionUs); 1298 notify->setInt32("reason", reason); 1299 notify->post(); 1300} 1301 1302void NuPlayer::Renderer::startAudioOffloadPauseTimeout() { 1303 if (offloadingAudio()) { 1304 sp<AMessage> msg = new AMessage(kWhatAudioOffloadPauseTimeout, id()); 1305 msg->setInt32("generation", mAudioOffloadPauseTimeoutGeneration); 1306 msg->post(kOffloadPauseMaxUs); 1307 } 1308} 1309 1310void NuPlayer::Renderer::cancelAudioOffloadPauseTimeout() { 1311 if (offloadingAudio()) { 1312 ++mAudioOffloadPauseTimeoutGeneration; 1313 } 1314} 1315 1316bool NuPlayer::Renderer::onOpenAudioSink( 1317 const sp<AMessage> &format, 1318 bool offloadOnly, 1319 bool hasVideo, 1320 uint32_t flags) { 1321 ALOGV("openAudioSink: offloadOnly(%d) offloadingAudio(%d)", 1322 offloadOnly, offloadingAudio()); 1323 bool audioSinkChanged = false; 1324 1325 int32_t numChannels; 1326 CHECK(format->findInt32("channel-count", &numChannels)); 1327 1328 int32_t channelMask; 1329 if (!format->findInt32("channel-mask", &channelMask)) { 1330 // signal to the AudioSink to derive the mask from count. 1331 channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER; 1332 } 1333 1334 int32_t sampleRate; 1335 CHECK(format->findInt32("sample-rate", &sampleRate)); 1336 1337 if (offloadingAudio()) { 1338 audio_format_t audioFormat = AUDIO_FORMAT_PCM_16_BIT; 1339 AString mime; 1340 CHECK(format->findString("mime", &mime)); 1341 status_t err = mapMimeToAudioFormat(audioFormat, mime.c_str()); 1342 1343 if (err != OK) { 1344 ALOGE("Couldn't map mime \"%s\" to a valid " 1345 "audio_format", mime.c_str()); 1346 onDisableOffloadAudio(); 1347 } else { 1348 ALOGV("Mime \"%s\" mapped to audio_format 0x%x", 1349 mime.c_str(), audioFormat); 1350 1351 int avgBitRate = -1; 1352 format->findInt32("bit-rate", &avgBitRate); 1353 1354 int32_t aacProfile = -1; 1355 if (audioFormat == AUDIO_FORMAT_AAC 1356 && format->findInt32("aac-profile", &aacProfile)) { 1357 // Redefine AAC format as per aac profile 1358 mapAACProfileToAudioFormat( 1359 audioFormat, 1360 aacProfile); 1361 } 1362 1363 audio_offload_info_t offloadInfo = AUDIO_INFO_INITIALIZER; 1364 offloadInfo.duration_us = -1; 1365 format->findInt64( 1366 "durationUs", &offloadInfo.duration_us); 1367 offloadInfo.sample_rate = sampleRate; 1368 offloadInfo.channel_mask = channelMask; 1369 offloadInfo.format = audioFormat; 1370 offloadInfo.stream_type = AUDIO_STREAM_MUSIC; 1371 offloadInfo.bit_rate = avgBitRate; 1372 offloadInfo.has_video = hasVideo; 1373 offloadInfo.is_streaming = true; 1374 1375 if (memcmp(&mCurrentOffloadInfo, &offloadInfo, sizeof(offloadInfo)) == 0) { 1376 ALOGV("openAudioSink: no change in offload mode"); 1377 // no change from previous configuration, everything ok. 1378 return offloadingAudio(); 1379 } 1380 ALOGV("openAudioSink: try to open AudioSink in offload mode"); 1381 flags |= AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD; 1382 flags &= ~AUDIO_OUTPUT_FLAG_DEEP_BUFFER; 1383 audioSinkChanged = true; 1384 mAudioSink->close(); 1385 err = mAudioSink->open( 1386 sampleRate, 1387 numChannels, 1388 (audio_channel_mask_t)channelMask, 1389 audioFormat, 1390 8 /* bufferCount */, 1391 &NuPlayer::Renderer::AudioSinkCallback, 1392 this, 1393 (audio_output_flags_t)flags, 1394 &offloadInfo); 1395 1396 if (err == OK) { 1397 // If the playback is offloaded to h/w, we pass 1398 // the HAL some metadata information. 1399 // We don't want to do this for PCM because it 1400 // will be going through the AudioFlinger mixer 1401 // before reaching the hardware. 1402 // TODO 1403 mCurrentOffloadInfo = offloadInfo; 1404 err = mAudioSink->start(); 1405 ALOGV_IF(err == OK, "openAudioSink: offload succeeded"); 1406 } 1407 if (err != OK) { 1408 // Clean up, fall back to non offload mode. 1409 mAudioSink->close(); 1410 onDisableOffloadAudio(); 1411 mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER; 1412 ALOGV("openAudioSink: offload failed"); 1413 } 1414 } 1415 } 1416 if (!offloadOnly && !offloadingAudio()) { 1417 flags &= ~AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD; 1418 ALOGV("openAudioSink: open AudioSink in NON-offload mode"); 1419 1420 audioSinkChanged = true; 1421 mAudioSink->close(); 1422 mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER; 1423 CHECK_EQ(mAudioSink->open( 1424 sampleRate, 1425 numChannels, 1426 (audio_channel_mask_t)channelMask, 1427 AUDIO_FORMAT_PCM_16_BIT, 1428 8 /* bufferCount */, 1429 NULL, 1430 NULL, 1431 (audio_output_flags_t)flags), 1432 (status_t)OK); 1433 mAudioSink->start(); 1434 } 1435 if (audioSinkChanged) { 1436 onAudioSinkChanged(); 1437 } 1438 1439 return offloadingAudio(); 1440} 1441 1442void NuPlayer::Renderer::onCloseAudioSink() { 1443 mAudioSink->close(); 1444 mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER; 1445} 1446 1447} // namespace android 1448 1449