NuPlayerRenderer.cpp revision 3b9eb1f8629c6264d924ab7043f80d824cdd39e2
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 mVideoAnchorTimeMediaUs(-1), 70 mVideoAnchorTimeRealUs(-1), 71 mVideoLateByUs(0ll), 72 mHasAudio(false), 73 mHasVideo(false), 74 mPauseStartedTimeRealUs(-1), 75 mFlushingAudio(false), 76 mFlushingVideo(false), 77 mSyncQueues(false), 78 mPaused(false), 79 mVideoSampleReceived(false), 80 mVideoRenderingStarted(false), 81 mVideoRenderingStartGeneration(0), 82 mAudioRenderingStartGeneration(0), 83 mAudioOffloadPauseTimeoutGeneration(0), 84 mAudioOffloadTornDown(false), 85 mCurrentOffloadInfo(AUDIO_INFO_INITIALIZER) { 86 readProperties(); 87} 88 89NuPlayer::Renderer::~Renderer() { 90 if (offloadingAudio()) { 91 mAudioSink->stop(); 92 mAudioSink->flush(); 93 mAudioSink->close(); 94 } 95} 96 97void NuPlayer::Renderer::queueBuffer( 98 bool audio, 99 const sp<ABuffer> &buffer, 100 const sp<AMessage> ¬ifyConsumed) { 101 sp<AMessage> msg = new AMessage(kWhatQueueBuffer, id()); 102 msg->setInt32("audio", static_cast<int32_t>(audio)); 103 msg->setBuffer("buffer", buffer); 104 msg->setMessage("notifyConsumed", notifyConsumed); 105 msg->post(); 106} 107 108void NuPlayer::Renderer::queueEOS(bool audio, status_t finalResult) { 109 CHECK_NE(finalResult, (status_t)OK); 110 111 sp<AMessage> msg = new AMessage(kWhatQueueEOS, id()); 112 msg->setInt32("audio", static_cast<int32_t>(audio)); 113 msg->setInt32("finalResult", finalResult); 114 msg->post(); 115} 116 117void NuPlayer::Renderer::flush(bool audio) { 118 { 119 Mutex::Autolock autoLock(mFlushLock); 120 if (audio) { 121 if (mFlushingAudio) { 122 return; 123 } 124 mFlushingAudio = true; 125 } else { 126 if (mFlushingVideo) { 127 return; 128 } 129 mFlushingVideo = true; 130 } 131 } 132 133 sp<AMessage> msg = new AMessage(kWhatFlush, id()); 134 msg->setInt32("audio", static_cast<int32_t>(audio)); 135 msg->post(); 136} 137 138void NuPlayer::Renderer::signalTimeDiscontinuity() { 139 Mutex::Autolock autoLock(mLock); 140 // CHECK(mAudioQueue.empty()); 141 // CHECK(mVideoQueue.empty()); 142 setAudioFirstAnchorTime(-1); 143 setVideoAnchorTime(-1, -1); 144 setVideoLateByUs(0); 145 mSyncQueues = false; 146} 147 148void NuPlayer::Renderer::signalAudioSinkChanged() { 149 (new AMessage(kWhatAudioSinkChanged, id()))->post(); 150} 151 152void NuPlayer::Renderer::signalDisableOffloadAudio() { 153 (new AMessage(kWhatDisableOffloadAudio, id()))->post(); 154} 155 156void NuPlayer::Renderer::pause() { 157 (new AMessage(kWhatPause, id()))->post(); 158} 159 160void NuPlayer::Renderer::resume() { 161 (new AMessage(kWhatResume, id()))->post(); 162} 163 164void NuPlayer::Renderer::setVideoFrameRate(float fps) { 165 sp<AMessage> msg = new AMessage(kWhatSetVideoFrameRate, id()); 166 msg->setFloat("frame-rate", fps); 167 msg->post(); 168} 169 170status_t NuPlayer::Renderer::getCurrentPosition(int64_t *mediaUs) { 171 return getCurrentPosition(mediaUs, ALooper::GetNowUs()); 172} 173 174status_t NuPlayer::Renderer::getCurrentPosition(int64_t *mediaUs, int64_t nowUs) { 175 Mutex::Autolock autoLock(mTimeLock); 176 if (!mHasAudio && !mHasVideo) { 177 return NO_INIT; 178 } 179 180 int64_t positionUs = 0; 181 if (!mHasAudio) { 182 if (mVideoAnchorTimeMediaUs < 0) { 183 return NO_INIT; 184 } 185 positionUs = (nowUs - mVideoAnchorTimeRealUs) + mVideoAnchorTimeMediaUs; 186 187 if (mPauseStartedTimeRealUs != -1) { 188 positionUs -= (nowUs - mPauseStartedTimeRealUs); 189 } 190 } else { 191 if (mAudioFirstAnchorTimeMediaUs < 0) { 192 return NO_INIT; 193 } 194 positionUs = mAudioFirstAnchorTimeMediaUs + getPlayedOutAudioDurationUs(nowUs); 195 } 196 *mediaUs = (positionUs <= 0) ? 0 : positionUs; 197 return OK; 198} 199 200void NuPlayer::Renderer::setHasMedia(bool audio) { 201 Mutex::Autolock autoLock(mTimeLock); 202 if (audio) { 203 mHasAudio = true; 204 } else { 205 mHasVideo = true; 206 } 207} 208 209void NuPlayer::Renderer::setAudioFirstAnchorTime(int64_t mediaUs) { 210 Mutex::Autolock autoLock(mTimeLock); 211 mAudioFirstAnchorTimeMediaUs = mediaUs; 212} 213 214void NuPlayer::Renderer::setAudioFirstAnchorTimeIfNeeded(int64_t mediaUs) { 215 Mutex::Autolock autoLock(mTimeLock); 216 if (mAudioFirstAnchorTimeMediaUs == -1) { 217 mAudioFirstAnchorTimeMediaUs = mediaUs; 218 } 219} 220 221void NuPlayer::Renderer::setVideoAnchorTime(int64_t mediaUs, int64_t realUs) { 222 Mutex::Autolock autoLock(mTimeLock); 223 mVideoAnchorTimeMediaUs = mediaUs; 224 mVideoAnchorTimeRealUs = realUs; 225} 226 227void NuPlayer::Renderer::setVideoLateByUs(int64_t lateUs) { 228 Mutex::Autolock autoLock(mTimeLock); 229 mVideoLateByUs = lateUs; 230} 231 232int64_t NuPlayer::Renderer::getVideoLateByUs() { 233 Mutex::Autolock autoLock(mTimeLock); 234 return mVideoLateByUs; 235} 236 237void NuPlayer::Renderer::setPauseStartedTimeRealUs(int64_t realUs) { 238 Mutex::Autolock autoLock(mTimeLock); 239 mPauseStartedTimeRealUs = realUs; 240} 241 242bool NuPlayer::Renderer::openAudioSink( 243 const sp<AMessage> &format, 244 bool offloadOnly, 245 bool hasVideo, 246 uint32_t flags) { 247 sp<AMessage> msg = new AMessage(kWhatOpenAudioSink, id()); 248 msg->setMessage("format", format); 249 msg->setInt32("offload-only", offloadOnly); 250 msg->setInt32("has-video", hasVideo); 251 msg->setInt32("flags", flags); 252 253 sp<AMessage> response; 254 msg->postAndAwaitResponse(&response); 255 256 int32_t offload; 257 CHECK(response->findInt32("offload", &offload)); 258 return (offload != 0); 259} 260 261void NuPlayer::Renderer::closeAudioSink() { 262 sp<AMessage> msg = new AMessage(kWhatCloseAudioSink, id()); 263 264 sp<AMessage> response; 265 msg->postAndAwaitResponse(&response); 266} 267 268void NuPlayer::Renderer::onMessageReceived(const sp<AMessage> &msg) { 269 switch (msg->what()) { 270 case kWhatOpenAudioSink: 271 { 272 sp<AMessage> format; 273 CHECK(msg->findMessage("format", &format)); 274 275 int32_t offloadOnly; 276 CHECK(msg->findInt32("offload-only", &offloadOnly)); 277 278 int32_t hasVideo; 279 CHECK(msg->findInt32("has-video", &hasVideo)); 280 281 uint32_t flags; 282 CHECK(msg->findInt32("flags", (int32_t *)&flags)); 283 284 bool offload = onOpenAudioSink(format, offloadOnly, hasVideo, flags); 285 286 sp<AMessage> response = new AMessage; 287 response->setInt32("offload", offload); 288 289 uint32_t replyID; 290 CHECK(msg->senderAwaitsResponse(&replyID)); 291 response->postReply(replyID); 292 293 break; 294 } 295 296 case kWhatCloseAudioSink: 297 { 298 uint32_t replyID; 299 CHECK(msg->senderAwaitsResponse(&replyID)); 300 301 onCloseAudioSink(); 302 303 sp<AMessage> response = new AMessage; 304 response->postReply(replyID); 305 break; 306 } 307 308 case kWhatStopAudioSink: 309 { 310 mAudioSink->stop(); 311 break; 312 } 313 314 case kWhatDrainAudioQueue: 315 { 316 int32_t generation; 317 CHECK(msg->findInt32("generation", &generation)); 318 if (generation != mAudioQueueGeneration) { 319 break; 320 } 321 322 mDrainAudioQueuePending = false; 323 324 if (onDrainAudioQueue()) { 325 uint32_t numFramesPlayed; 326 CHECK_EQ(mAudioSink->getPosition(&numFramesPlayed), 327 (status_t)OK); 328 329 uint32_t numFramesPendingPlayout = 330 mNumFramesWritten - numFramesPlayed; 331 332 // This is how long the audio sink will have data to 333 // play back. 334 int64_t delayUs = 335 mAudioSink->msecsPerFrame() 336 * numFramesPendingPlayout * 1000ll; 337 338 // Let's give it more data after about half that time 339 // has elapsed. 340 // kWhatDrainAudioQueue is used for non-offloading mode, 341 // and mLock is used only for offloading mode. Therefore, 342 // no need to acquire mLock here. 343 postDrainAudioQueue_l(delayUs / 2); 344 } 345 break; 346 } 347 348 case kWhatDrainVideoQueue: 349 { 350 int32_t generation; 351 CHECK(msg->findInt32("generation", &generation)); 352 if (generation != mVideoQueueGeneration) { 353 break; 354 } 355 356 mDrainVideoQueuePending = false; 357 358 onDrainVideoQueue(); 359 360 postDrainVideoQueue(); 361 break; 362 } 363 364 case kWhatQueueBuffer: 365 { 366 onQueueBuffer(msg); 367 break; 368 } 369 370 case kWhatQueueEOS: 371 { 372 onQueueEOS(msg); 373 break; 374 } 375 376 case kWhatFlush: 377 { 378 onFlush(msg); 379 break; 380 } 381 382 case kWhatAudioSinkChanged: 383 { 384 onAudioSinkChanged(); 385 break; 386 } 387 388 case kWhatDisableOffloadAudio: 389 { 390 onDisableOffloadAudio(); 391 break; 392 } 393 394 case kWhatPause: 395 { 396 onPause(); 397 break; 398 } 399 400 case kWhatResume: 401 { 402 onResume(); 403 break; 404 } 405 406 case kWhatSetVideoFrameRate: 407 { 408 float fps; 409 CHECK(msg->findFloat("frame-rate", &fps)); 410 onSetVideoFrameRate(fps); 411 break; 412 } 413 414 case kWhatAudioOffloadTearDown: 415 { 416 onAudioOffloadTearDown(kDueToError); 417 break; 418 } 419 420 case kWhatAudioOffloadPauseTimeout: 421 { 422 int32_t generation; 423 CHECK(msg->findInt32("generation", &generation)); 424 if (generation != mAudioOffloadPauseTimeoutGeneration) { 425 break; 426 } 427 ALOGV("Audio Offload tear down due to pause timeout."); 428 onAudioOffloadTearDown(kDueToTimeout); 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("generation", mAudioQueueGeneration); 451 msg->post(delayUs); 452} 453 454void NuPlayer::Renderer::prepareForMediaRenderingStart() { 455 mAudioRenderingStartGeneration = mAudioQueueGeneration; 456 mVideoRenderingStartGeneration = mVideoQueueGeneration; 457} 458 459void NuPlayer::Renderer::notifyIfMediaRenderingStarted() { 460 if (mVideoRenderingStartGeneration == mVideoQueueGeneration && 461 mAudioRenderingStartGeneration == mAudioQueueGeneration) { 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(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 notifyIfMediaRenderingStarted(); 550 } 551 552 if (hasEOS) { 553 (new AMessage(kWhatStopAudioSink, id()))->post(); 554 } 555 556 return sizeCopied; 557} 558 559bool NuPlayer::Renderer::onDrainAudioQueue() { 560 uint32_t numFramesPlayed; 561 if (mAudioSink->getPosition(&numFramesPlayed) != OK) { 562 return false; 563 } 564 565 ssize_t numFramesAvailableToWrite = 566 mAudioSink->frameCount() - (mNumFramesWritten - numFramesPlayed); 567 568#if 0 569 if (numFramesAvailableToWrite == mAudioSink->frameCount()) { 570 ALOGI("audio sink underrun"); 571 } else { 572 ALOGV("audio queue has %d frames left to play", 573 mAudioSink->frameCount() - numFramesAvailableToWrite); 574 } 575#endif 576 577 size_t numBytesAvailableToWrite = 578 numFramesAvailableToWrite * mAudioSink->frameSize(); 579 580 while (numBytesAvailableToWrite > 0 && !mAudioQueue.empty()) { 581 QueueEntry *entry = &*mAudioQueue.begin(); 582 583 if (entry->mBuffer == NULL) { 584 // EOS 585 int64_t postEOSDelayUs = 0; 586 if (mAudioSink->needsTrailingPadding()) { 587 postEOSDelayUs = getPendingAudioPlayoutDurationUs(ALooper::GetNowUs()); 588 } 589 notifyEOS(true /* audio */, entry->mFinalResult, postEOSDelayUs); 590 591 mAudioQueue.erase(mAudioQueue.begin()); 592 entry = NULL; 593 return false; 594 } 595 596 if (entry->mOffset == 0) { 597 int64_t mediaTimeUs; 598 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 599 ALOGV("rendering audio at media time %.2f secs", mediaTimeUs / 1E6); 600 601 setAudioFirstAnchorTimeIfNeeded(mediaTimeUs); 602 } 603 604 size_t copy = entry->mBuffer->size() - entry->mOffset; 605 if (copy > numBytesAvailableToWrite) { 606 copy = numBytesAvailableToWrite; 607 } 608 609 ssize_t written = mAudioSink->write(entry->mBuffer->data() + entry->mOffset, copy); 610 if (written < 0) { 611 // An error in AudioSink write is fatal here. 612 LOG_ALWAYS_FATAL("AudioSink write error(%zd) when writing %zu bytes", written, copy); 613 } 614 615 entry->mOffset += written; 616 if (entry->mOffset == entry->mBuffer->size()) { 617 entry->mNotifyConsumed->post(); 618 mAudioQueue.erase(mAudioQueue.begin()); 619 620 entry = NULL; 621 } 622 623 numBytesAvailableToWrite -= written; 624 size_t copiedFrames = written / mAudioSink->frameSize(); 625 mNumFramesWritten += copiedFrames; 626 627 notifyIfMediaRenderingStarted(); 628 629 if (written != (ssize_t)copy) { 630 // A short count was received from AudioSink::write() 631 // 632 // AudioSink write should block until exactly the number of bytes are delivered. 633 // But it may return with a short count (without an error) when: 634 // 635 // 1) Size to be copied is not a multiple of the frame size. We consider this fatal. 636 // 2) AudioSink is an AudioCache for data retrieval, and the AudioCache is exceeded. 637 638 // (Case 1) 639 // Must be a multiple of the frame size. If it is not a multiple of a frame size, it 640 // needs to fail, as we should not carry over fractional frames between calls. 641 CHECK_EQ(copy % mAudioSink->frameSize(), 0); 642 643 // (Case 2) 644 // Return early to the caller. 645 // Beware of calling immediately again as this may busy-loop if you are not careful. 646 ALOGW("AudioSink write short frame count %zd < %zu", written, copy); 647 break; 648 } 649 } 650 return !mAudioQueue.empty(); 651} 652 653int64_t NuPlayer::Renderer::getPendingAudioPlayoutDurationUs(int64_t nowUs) { 654 int64_t writtenAudioDurationUs = 655 mNumFramesWritten * 1000LL * mAudioSink->msecsPerFrame(); 656 return writtenAudioDurationUs - getPlayedOutAudioDurationUs(nowUs); 657} 658 659int64_t NuPlayer::Renderer::getRealTimeUs(int64_t mediaTimeUs, int64_t nowUs) { 660 int64_t currentPositionUs; 661 if (getCurrentPosition(¤tPositionUs, nowUs) != OK) { 662 currentPositionUs = 0; 663 } 664 return (mediaTimeUs - currentPositionUs) + nowUs; 665} 666 667void NuPlayer::Renderer::postDrainVideoQueue() { 668 if (mDrainVideoQueuePending 669 || mSyncQueues 670 || (mPaused && mVideoSampleReceived)) { 671 return; 672 } 673 674 if (mVideoQueue.empty()) { 675 return; 676 } 677 678 QueueEntry &entry = *mVideoQueue.begin(); 679 680 sp<AMessage> msg = new AMessage(kWhatDrainVideoQueue, id()); 681 msg->setInt32("generation", mVideoQueueGeneration); 682 683 if (entry.mBuffer == NULL) { 684 // EOS doesn't carry a timestamp. 685 msg->post(); 686 mDrainVideoQueuePending = true; 687 return; 688 } 689 690 int64_t delayUs; 691 int64_t nowUs = ALooper::GetNowUs(); 692 int64_t realTimeUs; 693 if (mFlags & FLAG_REAL_TIME) { 694 int64_t mediaTimeUs; 695 CHECK(entry.mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 696 realTimeUs = mediaTimeUs; 697 } else { 698 int64_t mediaTimeUs; 699 CHECK(entry.mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 700 701 if (mVideoAnchorTimeMediaUs < 0) { 702 setVideoAnchorTime(mediaTimeUs, nowUs); 703 realTimeUs = nowUs; 704 } else { 705 realTimeUs = getRealTimeUs(mediaTimeUs, nowUs); 706 } 707 } 708 709 realTimeUs = mVideoScheduler->schedule(realTimeUs * 1000) / 1000; 710 int64_t twoVsyncsUs = 2 * (mVideoScheduler->getVsyncPeriod() / 1000); 711 712 delayUs = realTimeUs - nowUs; 713 714 ALOGW_IF(delayUs > 500000, "unusually high delayUs: %" PRId64, delayUs); 715 // post 2 display refreshes before rendering is due 716 // FIXME currently this increases power consumption, so unless frame-accurate 717 // AV sync is requested, post closer to required render time (at 0.63 vsyncs) 718 if (!sFrameAccurateAVsync) { 719 twoVsyncsUs >>= 4; 720 } 721 msg->post(delayUs > twoVsyncsUs ? delayUs - twoVsyncsUs : 0); 722 723 mDrainVideoQueuePending = true; 724} 725 726void NuPlayer::Renderer::onDrainVideoQueue() { 727 if (mVideoQueue.empty()) { 728 return; 729 } 730 731 QueueEntry *entry = &*mVideoQueue.begin(); 732 733 if (entry->mBuffer == NULL) { 734 // EOS 735 736 notifyEOS(false /* audio */, entry->mFinalResult); 737 738 mVideoQueue.erase(mVideoQueue.begin()); 739 entry = NULL; 740 741 setVideoLateByUs(0); 742 return; 743 } 744 745 int64_t nowUs = -1; 746 int64_t realTimeUs; 747 if (mFlags & FLAG_REAL_TIME) { 748 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &realTimeUs)); 749 } else { 750 int64_t mediaTimeUs; 751 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 752 753 nowUs = ALooper::GetNowUs(); 754 realTimeUs = getRealTimeUs(mediaTimeUs, nowUs); 755 } 756 757 bool tooLate = false; 758 759 if (!mPaused) { 760 if (nowUs == -1) { 761 nowUs = ALooper::GetNowUs(); 762 } 763 setVideoLateByUs(nowUs - realTimeUs); 764 tooLate = (mVideoLateByUs > 40000); 765 766 if (tooLate) { 767 ALOGV("video late by %lld us (%.2f secs)", 768 mVideoLateByUs, mVideoLateByUs / 1E6); 769 } else { 770 ALOGV("rendering video at media time %.2f secs", 771 (mFlags & FLAG_REAL_TIME ? realTimeUs : 772 (realTimeUs + mVideoAnchorTimeMediaUs - mVideoAnchorTimeRealUs)) / 1E6); 773 } 774 } else { 775 setVideoLateByUs(0); 776 if (!mVideoSampleReceived) { 777 // This will ensure that the first frame after a flush won't be used as anchor 778 // when renderer is in paused state, because resume can happen any time after seek. 779 setVideoAnchorTime(-1, -1); 780 } 781 } 782 783 entry->mNotifyConsumed->setInt64("timestampNs", realTimeUs * 1000ll); 784 entry->mNotifyConsumed->setInt32("render", !tooLate); 785 entry->mNotifyConsumed->post(); 786 mVideoQueue.erase(mVideoQueue.begin()); 787 entry = NULL; 788 789 mVideoSampleReceived = true; 790 791 if (!mPaused) { 792 if (!mVideoRenderingStarted) { 793 mVideoRenderingStarted = true; 794 notifyVideoRenderingStart(); 795 } 796 notifyIfMediaRenderingStarted(); 797 } 798} 799 800void NuPlayer::Renderer::notifyVideoRenderingStart() { 801 sp<AMessage> notify = mNotify->dup(); 802 notify->setInt32("what", kWhatVideoRenderingStart); 803 notify->post(); 804} 805 806void NuPlayer::Renderer::notifyEOS(bool audio, status_t finalResult, int64_t delayUs) { 807 sp<AMessage> notify = mNotify->dup(); 808 notify->setInt32("what", kWhatEOS); 809 notify->setInt32("audio", static_cast<int32_t>(audio)); 810 notify->setInt32("finalResult", finalResult); 811 notify->post(delayUs); 812} 813 814void NuPlayer::Renderer::notifyAudioOffloadTearDown() { 815 (new AMessage(kWhatAudioOffloadTearDown, id()))->post(); 816} 817 818void NuPlayer::Renderer::onQueueBuffer(const sp<AMessage> &msg) { 819 int32_t audio; 820 CHECK(msg->findInt32("audio", &audio)); 821 822 setHasMedia(audio); 823 824 if (mHasVideo) { 825 if (mVideoScheduler == NULL) { 826 mVideoScheduler = new VideoFrameScheduler(); 827 mVideoScheduler->init(); 828 } 829 } 830 831 if (dropBufferWhileFlushing(audio, msg)) { 832 return; 833 } 834 835 sp<ABuffer> buffer; 836 CHECK(msg->findBuffer("buffer", &buffer)); 837 838 sp<AMessage> notifyConsumed; 839 CHECK(msg->findMessage("notifyConsumed", ¬ifyConsumed)); 840 841 QueueEntry entry; 842 entry.mBuffer = buffer; 843 entry.mNotifyConsumed = notifyConsumed; 844 entry.mOffset = 0; 845 entry.mFinalResult = OK; 846 847 if (audio) { 848 Mutex::Autolock autoLock(mLock); 849 mAudioQueue.push_back(entry); 850 postDrainAudioQueue_l(); 851 } else { 852 mVideoQueue.push_back(entry); 853 postDrainVideoQueue(); 854 } 855 856 Mutex::Autolock autoLock(mLock); 857 if (!mSyncQueues || mAudioQueue.empty() || mVideoQueue.empty()) { 858 return; 859 } 860 861 sp<ABuffer> firstAudioBuffer = (*mAudioQueue.begin()).mBuffer; 862 sp<ABuffer> firstVideoBuffer = (*mVideoQueue.begin()).mBuffer; 863 864 if (firstAudioBuffer == NULL || firstVideoBuffer == NULL) { 865 // EOS signalled on either queue. 866 syncQueuesDone_l(); 867 return; 868 } 869 870 int64_t firstAudioTimeUs; 871 int64_t firstVideoTimeUs; 872 CHECK(firstAudioBuffer->meta() 873 ->findInt64("timeUs", &firstAudioTimeUs)); 874 CHECK(firstVideoBuffer->meta() 875 ->findInt64("timeUs", &firstVideoTimeUs)); 876 877 int64_t diff = firstVideoTimeUs - firstAudioTimeUs; 878 879 ALOGV("queueDiff = %.2f secs", diff / 1E6); 880 881 if (diff > 100000ll) { 882 // Audio data starts More than 0.1 secs before video. 883 // Drop some audio. 884 885 (*mAudioQueue.begin()).mNotifyConsumed->post(); 886 mAudioQueue.erase(mAudioQueue.begin()); 887 return; 888 } 889 890 syncQueuesDone_l(); 891} 892 893void NuPlayer::Renderer::syncQueuesDone_l() { 894 if (!mSyncQueues) { 895 return; 896 } 897 898 mSyncQueues = false; 899 900 if (!mAudioQueue.empty()) { 901 postDrainAudioQueue_l(); 902 } 903 904 if (!mVideoQueue.empty()) { 905 postDrainVideoQueue(); 906 } 907} 908 909void NuPlayer::Renderer::onQueueEOS(const sp<AMessage> &msg) { 910 int32_t audio; 911 CHECK(msg->findInt32("audio", &audio)); 912 913 if (dropBufferWhileFlushing(audio, msg)) { 914 return; 915 } 916 917 int32_t finalResult; 918 CHECK(msg->findInt32("finalResult", &finalResult)); 919 920 QueueEntry entry; 921 entry.mOffset = 0; 922 entry.mFinalResult = finalResult; 923 924 if (audio) { 925 Mutex::Autolock autoLock(mLock); 926 if (mAudioQueue.empty() && mSyncQueues) { 927 syncQueuesDone_l(); 928 } 929 mAudioQueue.push_back(entry); 930 postDrainAudioQueue_l(); 931 } else { 932 if (mVideoQueue.empty() && mSyncQueues) { 933 Mutex::Autolock autoLock(mLock); 934 syncQueuesDone_l(); 935 } 936 mVideoQueue.push_back(entry); 937 postDrainVideoQueue(); 938 } 939} 940 941void NuPlayer::Renderer::onFlush(const sp<AMessage> &msg) { 942 int32_t audio; 943 CHECK(msg->findInt32("audio", &audio)); 944 945 { 946 Mutex::Autolock autoLock(mFlushLock); 947 if (audio) { 948 mFlushingAudio = false; 949 } else { 950 mFlushingVideo = false; 951 } 952 } 953 954 // If we're currently syncing the queues, i.e. dropping audio while 955 // aligning the first audio/video buffer times and only one of the 956 // two queues has data, we may starve that queue by not requesting 957 // more buffers from the decoder. If the other source then encounters 958 // a discontinuity that leads to flushing, we'll never find the 959 // corresponding discontinuity on the other queue. 960 // Therefore we'll stop syncing the queues if at least one of them 961 // is flushed. 962 { 963 Mutex::Autolock autoLock(mLock); 964 syncQueuesDone_l(); 965 setPauseStartedTimeRealUs(-1); 966 } 967 968 ALOGV("flushing %s", audio ? "audio" : "video"); 969 if (audio) { 970 { 971 Mutex::Autolock autoLock(mLock); 972 flushQueue(&mAudioQueue); 973 974 ++mAudioQueueGeneration; 975 prepareForMediaRenderingStart(); 976 977 if (offloadingAudio()) { 978 setAudioFirstAnchorTime(-1); 979 } 980 } 981 982 mDrainAudioQueuePending = false; 983 984 if (offloadingAudio()) { 985 mAudioSink->pause(); 986 mAudioSink->flush(); 987 mAudioSink->start(); 988 } 989 } else { 990 flushQueue(&mVideoQueue); 991 992 mDrainVideoQueuePending = false; 993 ++mVideoQueueGeneration; 994 995 if (mVideoScheduler != NULL) { 996 mVideoScheduler->restart(); 997 } 998 999 prepareForMediaRenderingStart(); 1000 } 1001 1002 mVideoSampleReceived = false; 1003 notifyFlushComplete(audio); 1004} 1005 1006void NuPlayer::Renderer::flushQueue(List<QueueEntry> *queue) { 1007 while (!queue->empty()) { 1008 QueueEntry *entry = &*queue->begin(); 1009 1010 if (entry->mBuffer != NULL) { 1011 entry->mNotifyConsumed->post(); 1012 } 1013 1014 queue->erase(queue->begin()); 1015 entry = NULL; 1016 } 1017} 1018 1019void NuPlayer::Renderer::notifyFlushComplete(bool audio) { 1020 sp<AMessage> notify = mNotify->dup(); 1021 notify->setInt32("what", kWhatFlushComplete); 1022 notify->setInt32("audio", static_cast<int32_t>(audio)); 1023 notify->post(); 1024} 1025 1026bool NuPlayer::Renderer::dropBufferWhileFlushing( 1027 bool audio, const sp<AMessage> &msg) { 1028 bool flushing = false; 1029 1030 { 1031 Mutex::Autolock autoLock(mFlushLock); 1032 if (audio) { 1033 flushing = mFlushingAudio; 1034 } else { 1035 flushing = mFlushingVideo; 1036 } 1037 } 1038 1039 if (!flushing) { 1040 return false; 1041 } 1042 1043 sp<AMessage> notifyConsumed; 1044 if (msg->findMessage("notifyConsumed", ¬ifyConsumed)) { 1045 notifyConsumed->post(); 1046 } 1047 1048 return true; 1049} 1050 1051void NuPlayer::Renderer::onAudioSinkChanged() { 1052 if (offloadingAudio()) { 1053 return; 1054 } 1055 CHECK(!mDrainAudioQueuePending); 1056 mNumFramesWritten = 0; 1057 uint32_t written; 1058 if (mAudioSink->getFramesWritten(&written) == OK) { 1059 mNumFramesWritten = written; 1060 } 1061} 1062 1063void NuPlayer::Renderer::onDisableOffloadAudio() { 1064 Mutex::Autolock autoLock(mLock); 1065 mFlags &= ~FLAG_OFFLOAD_AUDIO; 1066 ++mAudioQueueGeneration; 1067} 1068 1069void NuPlayer::Renderer::onPause() { 1070 if (mPaused) { 1071 ALOGW("Renderer::onPause() called while already paused!"); 1072 return; 1073 } 1074 { 1075 Mutex::Autolock autoLock(mLock); 1076 ++mAudioQueueGeneration; 1077 ++mVideoQueueGeneration; 1078 prepareForMediaRenderingStart(); 1079 mPaused = true; 1080 setPauseStartedTimeRealUs(ALooper::GetNowUs()); 1081 } 1082 1083 mDrainAudioQueuePending = false; 1084 mDrainVideoQueuePending = false; 1085 1086 if (mHasAudio) { 1087 mAudioSink->pause(); 1088 startAudioOffloadPauseTimeout(); 1089 } 1090 1091 ALOGV("now paused audio queue has %d entries, video has %d entries", 1092 mAudioQueue.size(), mVideoQueue.size()); 1093} 1094 1095void NuPlayer::Renderer::onResume() { 1096 readProperties(); 1097 1098 if (!mPaused) { 1099 return; 1100 } 1101 1102 if (mHasAudio) { 1103 cancelAudioOffloadPauseTimeout(); 1104 mAudioSink->start(); 1105 } 1106 1107 Mutex::Autolock autoLock(mLock); 1108 mPaused = false; 1109 if (mPauseStartedTimeRealUs != -1) { 1110 int64_t newAnchorRealUs = 1111 mVideoAnchorTimeRealUs + ALooper::GetNowUs() - mPauseStartedTimeRealUs; 1112 setVideoAnchorTime(mVideoAnchorTimeMediaUs, newAnchorRealUs); 1113 setPauseStartedTimeRealUs(-1); 1114 } 1115 1116 if (!mAudioQueue.empty()) { 1117 postDrainAudioQueue_l(); 1118 } 1119 1120 if (!mVideoQueue.empty()) { 1121 postDrainVideoQueue(); 1122 } 1123} 1124 1125void NuPlayer::Renderer::onSetVideoFrameRate(float fps) { 1126 if (mVideoScheduler == NULL) { 1127 mVideoScheduler = new VideoFrameScheduler(); 1128 } 1129 mVideoScheduler->init(fps); 1130} 1131 1132// TODO: Remove unnecessary calls to getPlayedOutAudioDurationUs() 1133// as it acquires locks and may query the audio driver. 1134// 1135// Some calls could conceivably retrieve extrapolated data instead of 1136// accessing getTimestamp() or getPosition() every time a data buffer with 1137// a media time is received. 1138// 1139int64_t NuPlayer::Renderer::getPlayedOutAudioDurationUs(int64_t nowUs) { 1140 uint32_t numFramesPlayed; 1141 int64_t numFramesPlayedAt; 1142 AudioTimestamp ts; 1143 static const int64_t kStaleTimestamp100ms = 100000; 1144 1145 status_t res = mAudioSink->getTimestamp(ts); 1146 if (res == OK) { // case 1: mixing audio tracks and offloaded tracks. 1147 numFramesPlayed = ts.mPosition; 1148 numFramesPlayedAt = 1149 ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000; 1150 const int64_t timestampAge = nowUs - numFramesPlayedAt; 1151 if (timestampAge > kStaleTimestamp100ms) { 1152 // This is an audio FIXME. 1153 // getTimestamp returns a timestamp which may come from audio mixing threads. 1154 // After pausing, the MixerThread may go idle, thus the mTime estimate may 1155 // become stale. Assuming that the MixerThread runs 20ms, with FastMixer at 5ms, 1156 // the max latency should be about 25ms with an average around 12ms (to be verified). 1157 // For safety we use 100ms. 1158 ALOGV("getTimestamp: returned stale timestamp nowUs(%lld) numFramesPlayedAt(%lld)", 1159 (long long)nowUs, (long long)numFramesPlayedAt); 1160 numFramesPlayedAt = nowUs - kStaleTimestamp100ms; 1161 } 1162 //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAt); 1163 } else if (res == WOULD_BLOCK) { // case 2: transitory state on start of a new track 1164 numFramesPlayed = 0; 1165 numFramesPlayedAt = nowUs; 1166 //ALOGD("getTimestamp: WOULD_BLOCK %d %lld", 1167 // numFramesPlayed, (long long)numFramesPlayedAt); 1168 } else { // case 3: transitory at new track or audio fast tracks. 1169 res = mAudioSink->getPosition(&numFramesPlayed); 1170 CHECK_EQ(res, (status_t)OK); 1171 numFramesPlayedAt = nowUs; 1172 numFramesPlayedAt += 1000LL * mAudioSink->latency() / 2; /* XXX */ 1173 //ALOGD("getPosition: %d %lld", numFramesPlayed, numFramesPlayedAt); 1174 } 1175 1176 // TODO: remove the (int32_t) casting below as it may overflow at 12.4 hours. 1177 //CHECK_EQ(numFramesPlayed & (1 << 31), 0); // can't be negative until 12.4 hrs, test 1178 int64_t durationUs = (int32_t)numFramesPlayed * 1000LL * mAudioSink->msecsPerFrame() 1179 + nowUs - numFramesPlayedAt; 1180 if (durationUs < 0) { 1181 // Occurs when numFramesPlayed position is very small and the following: 1182 // (1) In case 1, the time nowUs is computed before getTimestamp() is called and 1183 // numFramesPlayedAt is greater than nowUs by time more than numFramesPlayed. 1184 // (2) In case 3, using getPosition and adding mAudioSink->latency() to 1185 // numFramesPlayedAt, by a time amount greater than numFramesPlayed. 1186 // 1187 // Both of these are transitory conditions. 1188 ALOGV("getPlayedOutAudioDurationUs: negative duration %lld set to zero", (long long)durationUs); 1189 durationUs = 0; 1190 } 1191 ALOGV("getPlayedOutAudioDurationUs(%lld) nowUs(%lld) frames(%u) framesAt(%lld)", 1192 (long long)durationUs, (long long)nowUs, numFramesPlayed, (long long)numFramesPlayedAt); 1193 return durationUs; 1194} 1195 1196void NuPlayer::Renderer::onAudioOffloadTearDown(AudioOffloadTearDownReason reason) { 1197 if (mAudioOffloadTornDown) { 1198 return; 1199 } 1200 mAudioOffloadTornDown = true; 1201 1202 int64_t currentPositionUs; 1203 if (getCurrentPosition(¤tPositionUs) != OK) { 1204 currentPositionUs = 0; 1205 } 1206 1207 mAudioSink->stop(); 1208 mAudioSink->flush(); 1209 1210 sp<AMessage> notify = mNotify->dup(); 1211 notify->setInt32("what", kWhatAudioOffloadTearDown); 1212 notify->setInt64("positionUs", currentPositionUs); 1213 notify->setInt32("reason", reason); 1214 notify->post(); 1215} 1216 1217void NuPlayer::Renderer::startAudioOffloadPauseTimeout() { 1218 if (offloadingAudio()) { 1219 sp<AMessage> msg = new AMessage(kWhatAudioOffloadPauseTimeout, id()); 1220 msg->setInt32("generation", mAudioOffloadPauseTimeoutGeneration); 1221 msg->post(kOffloadPauseMaxUs); 1222 } 1223} 1224 1225void NuPlayer::Renderer::cancelAudioOffloadPauseTimeout() { 1226 if (offloadingAudio()) { 1227 ++mAudioOffloadPauseTimeoutGeneration; 1228 } 1229} 1230 1231bool NuPlayer::Renderer::onOpenAudioSink( 1232 const sp<AMessage> &format, 1233 bool offloadOnly, 1234 bool hasVideo, 1235 uint32_t flags) { 1236 ALOGV("openAudioSink: offloadOnly(%d) offloadingAudio(%d)", 1237 offloadOnly, offloadingAudio()); 1238 bool audioSinkChanged = false; 1239 1240 int32_t numChannels; 1241 CHECK(format->findInt32("channel-count", &numChannels)); 1242 1243 int32_t channelMask; 1244 if (!format->findInt32("channel-mask", &channelMask)) { 1245 // signal to the AudioSink to derive the mask from count. 1246 channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER; 1247 } 1248 1249 int32_t sampleRate; 1250 CHECK(format->findInt32("sample-rate", &sampleRate)); 1251 1252 if (offloadingAudio()) { 1253 audio_format_t audioFormat = AUDIO_FORMAT_PCM_16_BIT; 1254 AString mime; 1255 CHECK(format->findString("mime", &mime)); 1256 status_t err = mapMimeToAudioFormat(audioFormat, mime.c_str()); 1257 1258 if (err != OK) { 1259 ALOGE("Couldn't map mime \"%s\" to a valid " 1260 "audio_format", mime.c_str()); 1261 onDisableOffloadAudio(); 1262 } else { 1263 ALOGV("Mime \"%s\" mapped to audio_format 0x%x", 1264 mime.c_str(), audioFormat); 1265 1266 int avgBitRate = -1; 1267 format->findInt32("bit-rate", &avgBitRate); 1268 1269 int32_t aacProfile = -1; 1270 if (audioFormat == AUDIO_FORMAT_AAC 1271 && format->findInt32("aac-profile", &aacProfile)) { 1272 // Redefine AAC format as per aac profile 1273 mapAACProfileToAudioFormat( 1274 audioFormat, 1275 aacProfile); 1276 } 1277 1278 audio_offload_info_t offloadInfo = AUDIO_INFO_INITIALIZER; 1279 offloadInfo.duration_us = -1; 1280 format->findInt64( 1281 "durationUs", &offloadInfo.duration_us); 1282 offloadInfo.sample_rate = sampleRate; 1283 offloadInfo.channel_mask = channelMask; 1284 offloadInfo.format = audioFormat; 1285 offloadInfo.stream_type = AUDIO_STREAM_MUSIC; 1286 offloadInfo.bit_rate = avgBitRate; 1287 offloadInfo.has_video = hasVideo; 1288 offloadInfo.is_streaming = true; 1289 1290 if (memcmp(&mCurrentOffloadInfo, &offloadInfo, sizeof(offloadInfo)) == 0) { 1291 ALOGV("openAudioSink: no change in offload mode"); 1292 // no change from previous configuration, everything ok. 1293 return offloadingAudio(); 1294 } 1295 ALOGV("openAudioSink: try to open AudioSink in offload mode"); 1296 flags |= AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD; 1297 flags &= ~AUDIO_OUTPUT_FLAG_DEEP_BUFFER; 1298 audioSinkChanged = true; 1299 mAudioSink->close(); 1300 err = mAudioSink->open( 1301 sampleRate, 1302 numChannels, 1303 (audio_channel_mask_t)channelMask, 1304 audioFormat, 1305 8 /* bufferCount */, 1306 &NuPlayer::Renderer::AudioSinkCallback, 1307 this, 1308 (audio_output_flags_t)flags, 1309 &offloadInfo); 1310 1311 if (err == OK) { 1312 // If the playback is offloaded to h/w, we pass 1313 // the HAL some metadata information. 1314 // We don't want to do this for PCM because it 1315 // will be going through the AudioFlinger mixer 1316 // before reaching the hardware. 1317 // TODO 1318 mCurrentOffloadInfo = offloadInfo; 1319 err = mAudioSink->start(); 1320 ALOGV_IF(err == OK, "openAudioSink: offload succeeded"); 1321 } 1322 if (err != OK) { 1323 // Clean up, fall back to non offload mode. 1324 mAudioSink->close(); 1325 onDisableOffloadAudio(); 1326 mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER; 1327 ALOGV("openAudioSink: offload failed"); 1328 } 1329 } 1330 } 1331 if (!offloadOnly && !offloadingAudio()) { 1332 flags &= ~AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD; 1333 ALOGV("openAudioSink: open AudioSink in NON-offload mode"); 1334 1335 audioSinkChanged = true; 1336 mAudioSink->close(); 1337 mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER; 1338 CHECK_EQ(mAudioSink->open( 1339 sampleRate, 1340 numChannels, 1341 (audio_channel_mask_t)channelMask, 1342 AUDIO_FORMAT_PCM_16_BIT, 1343 8 /* bufferCount */, 1344 NULL, 1345 NULL, 1346 (audio_output_flags_t)flags), 1347 (status_t)OK); 1348 mAudioSink->start(); 1349 } 1350 if (audioSinkChanged) { 1351 onAudioSinkChanged(); 1352 } 1353 1354 return offloadingAudio(); 1355} 1356 1357void NuPlayer::Renderer::onCloseAudioSink() { 1358 mAudioSink->close(); 1359 mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER; 1360} 1361 1362} // namespace android 1363 1364