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 #include <cutils/properties.h> 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 #include <media/stagefright/VideoFrameScheduler.h> 33 34 #include <inttypes.h> 35 36 namespace android { 37 38 /* 39 * Example of common configuration settings in shell script form 40 41 #Turn offload audio off (use PCM for Play Music) -- AudioPolicyManager 42 adb shell setprop audio.offload.disable 1 43 44 #Allow offload audio with video (requires offloading to be enabled) -- AudioPolicyManager 45 adb shell setprop audio.offload.video 1 46 47 #Use audio callbacks for PCM data 48 adb shell setprop media.stagefright.audio.cbk 1 49 50 #Use deep buffer for PCM data with video (it is generally enabled for audio-only) 51 adb shell setprop media.stagefright.audio.deep 1 52 53 #Set size of buffers for pcm audio sink in msec (example: 1000 msec) 54 adb shell setprop media.stagefright.audio.sink 1000 55 56 * These configurations take effect for the next track played (not the current track). 57 */ 58 59 static inline bool getUseAudioCallbackSetting() { 60 return property_get_bool("media.stagefright.audio.cbk", false /* default_value */); 61 } 62 63 static inline int32_t getAudioSinkPcmMsSetting() { 64 return property_get_int32( 65 "media.stagefright.audio.sink", 500 /* default_value */); 66 } 67 68 // Maximum time in paused state when offloading audio decompression. When elapsed, the AudioSink 69 // is closed to allow the audio DSP to power down. 70 static const int64_t kOffloadPauseMaxUs = 10000000ll; 71 72 // static 73 const NuPlayer::Renderer::PcmInfo NuPlayer::Renderer::AUDIO_PCMINFO_INITIALIZER = { 74 AUDIO_CHANNEL_NONE, 75 AUDIO_OUTPUT_FLAG_NONE, 76 AUDIO_FORMAT_INVALID, 77 0, // mNumChannels 78 0 // mSampleRate 79 }; 80 81 // static 82 const int64_t NuPlayer::Renderer::kMinPositionUpdateDelayUs = 100000ll; 83 84 NuPlayer::Renderer::Renderer( 85 const sp<MediaPlayerBase::AudioSink> &sink, 86 const sp<AMessage> ¬ify, 87 uint32_t flags) 88 : mAudioSink(sink), 89 mNotify(notify), 90 mFlags(flags), 91 mNumFramesWritten(0), 92 mDrainAudioQueuePending(false), 93 mDrainVideoQueuePending(false), 94 mAudioQueueGeneration(0), 95 mVideoQueueGeneration(0), 96 mAudioDrainGeneration(0), 97 mVideoDrainGeneration(0), 98 mPlaybackSettings(AUDIO_PLAYBACK_RATE_DEFAULT), 99 mAudioFirstAnchorTimeMediaUs(-1), 100 mAnchorTimeMediaUs(-1), 101 mAnchorNumFramesWritten(-1), 102 mVideoLateByUs(0ll), 103 mHasAudio(false), 104 mHasVideo(false), 105 mNotifyCompleteAudio(false), 106 mNotifyCompleteVideo(false), 107 mSyncQueues(false), 108 mPaused(false), 109 mVideoSampleReceived(false), 110 mVideoRenderingStarted(false), 111 mVideoRenderingStartGeneration(0), 112 mAudioRenderingStartGeneration(0), 113 mAudioOffloadPauseTimeoutGeneration(0), 114 mAudioTornDown(false), 115 mCurrentOffloadInfo(AUDIO_INFO_INITIALIZER), 116 mCurrentPcmInfo(AUDIO_PCMINFO_INITIALIZER), 117 mTotalBuffersQueued(0), 118 mLastAudioBufferDrained(0), 119 mUseAudioCallback(false), 120 mWakeLock(new AWakeLock()) { 121 mMediaClock = new MediaClock; 122 mPlaybackRate = mPlaybackSettings.mSpeed; 123 mMediaClock->setPlaybackRate(mPlaybackRate); 124 } 125 126 NuPlayer::Renderer::~Renderer() { 127 if (offloadingAudio()) { 128 mAudioSink->stop(); 129 mAudioSink->flush(); 130 mAudioSink->close(); 131 } 132 } 133 134 void NuPlayer::Renderer::queueBuffer( 135 bool audio, 136 const sp<ABuffer> &buffer, 137 const sp<AMessage> ¬ifyConsumed) { 138 sp<AMessage> msg = new AMessage(kWhatQueueBuffer, this); 139 msg->setInt32("queueGeneration", getQueueGeneration(audio)); 140 msg->setInt32("audio", static_cast<int32_t>(audio)); 141 msg->setBuffer("buffer", buffer); 142 msg->setMessage("notifyConsumed", notifyConsumed); 143 msg->post(); 144 } 145 146 void NuPlayer::Renderer::queueEOS(bool audio, status_t finalResult) { 147 CHECK_NE(finalResult, (status_t)OK); 148 149 sp<AMessage> msg = new AMessage(kWhatQueueEOS, this); 150 msg->setInt32("queueGeneration", getQueueGeneration(audio)); 151 msg->setInt32("audio", static_cast<int32_t>(audio)); 152 msg->setInt32("finalResult", finalResult); 153 msg->post(); 154 } 155 156 status_t NuPlayer::Renderer::setPlaybackSettings(const AudioPlaybackRate &rate) { 157 sp<AMessage> msg = new AMessage(kWhatConfigPlayback, this); 158 writeToAMessage(msg, rate); 159 sp<AMessage> response; 160 status_t err = msg->postAndAwaitResponse(&response); 161 if (err == OK && response != NULL) { 162 CHECK(response->findInt32("err", &err)); 163 } 164 return err; 165 } 166 167 status_t NuPlayer::Renderer::onConfigPlayback(const AudioPlaybackRate &rate /* sanitized */) { 168 if (rate.mSpeed == 0.f) { 169 onPause(); 170 // don't call audiosink's setPlaybackRate if pausing, as pitch does not 171 // have to correspond to the any non-0 speed (e.g old speed). Keep 172 // settings nonetheless, using the old speed, in case audiosink changes. 173 AudioPlaybackRate newRate = rate; 174 newRate.mSpeed = mPlaybackSettings.mSpeed; 175 mPlaybackSettings = newRate; 176 return OK; 177 } 178 179 if (mAudioSink != NULL && mAudioSink->ready()) { 180 status_t err = mAudioSink->setPlaybackRate(rate); 181 if (err != OK) { 182 return err; 183 } 184 } 185 mPlaybackSettings = rate; 186 mPlaybackRate = rate.mSpeed; 187 mMediaClock->setPlaybackRate(mPlaybackRate); 188 return OK; 189 } 190 191 status_t NuPlayer::Renderer::getPlaybackSettings(AudioPlaybackRate *rate /* nonnull */) { 192 sp<AMessage> msg = new AMessage(kWhatGetPlaybackSettings, this); 193 sp<AMessage> response; 194 status_t err = msg->postAndAwaitResponse(&response); 195 if (err == OK && response != NULL) { 196 CHECK(response->findInt32("err", &err)); 197 if (err == OK) { 198 readFromAMessage(response, rate); 199 } 200 } 201 return err; 202 } 203 204 status_t NuPlayer::Renderer::onGetPlaybackSettings(AudioPlaybackRate *rate /* nonnull */) { 205 if (mAudioSink != NULL && mAudioSink->ready()) { 206 status_t err = mAudioSink->getPlaybackRate(rate); 207 if (err == OK) { 208 if (!isAudioPlaybackRateEqual(*rate, mPlaybackSettings)) { 209 ALOGW("correcting mismatch in internal/external playback rate"); 210 } 211 // get playback settings used by audiosink, as it may be 212 // slightly off due to audiosink not taking small changes. 213 mPlaybackSettings = *rate; 214 if (mPaused) { 215 rate->mSpeed = 0.f; 216 } 217 } 218 return err; 219 } 220 *rate = mPlaybackSettings; 221 return OK; 222 } 223 224 status_t NuPlayer::Renderer::setSyncSettings(const AVSyncSettings &sync, float videoFpsHint) { 225 sp<AMessage> msg = new AMessage(kWhatConfigSync, this); 226 writeToAMessage(msg, sync, videoFpsHint); 227 sp<AMessage> response; 228 status_t err = msg->postAndAwaitResponse(&response); 229 if (err == OK && response != NULL) { 230 CHECK(response->findInt32("err", &err)); 231 } 232 return err; 233 } 234 235 status_t NuPlayer::Renderer::onConfigSync(const AVSyncSettings &sync, float videoFpsHint __unused) { 236 if (sync.mSource != AVSYNC_SOURCE_DEFAULT) { 237 return BAD_VALUE; 238 } 239 // TODO: support sync sources 240 return INVALID_OPERATION; 241 } 242 243 status_t NuPlayer::Renderer::getSyncSettings(AVSyncSettings *sync, float *videoFps) { 244 sp<AMessage> msg = new AMessage(kWhatGetSyncSettings, this); 245 sp<AMessage> response; 246 status_t err = msg->postAndAwaitResponse(&response); 247 if (err == OK && response != NULL) { 248 CHECK(response->findInt32("err", &err)); 249 if (err == OK) { 250 readFromAMessage(response, sync, videoFps); 251 } 252 } 253 return err; 254 } 255 256 status_t NuPlayer::Renderer::onGetSyncSettings( 257 AVSyncSettings *sync /* nonnull */, float *videoFps /* nonnull */) { 258 *sync = mSyncSettings; 259 *videoFps = -1.f; 260 return OK; 261 } 262 263 void NuPlayer::Renderer::flush(bool audio, bool notifyComplete) { 264 { 265 Mutex::Autolock autoLock(mLock); 266 if (audio) { 267 mNotifyCompleteAudio |= notifyComplete; 268 clearAudioFirstAnchorTime_l(); 269 ++mAudioQueueGeneration; 270 ++mAudioDrainGeneration; 271 } else { 272 mNotifyCompleteVideo |= notifyComplete; 273 ++mVideoQueueGeneration; 274 ++mVideoDrainGeneration; 275 } 276 277 clearAnchorTime_l(); 278 mVideoLateByUs = 0; 279 mSyncQueues = false; 280 } 281 282 sp<AMessage> msg = new AMessage(kWhatFlush, this); 283 msg->setInt32("audio", static_cast<int32_t>(audio)); 284 msg->post(); 285 } 286 287 void NuPlayer::Renderer::signalTimeDiscontinuity() { 288 } 289 290 void NuPlayer::Renderer::signalDisableOffloadAudio() { 291 (new AMessage(kWhatDisableOffloadAudio, this))->post(); 292 } 293 294 void NuPlayer::Renderer::signalEnableOffloadAudio() { 295 (new AMessage(kWhatEnableOffloadAudio, this))->post(); 296 } 297 298 void NuPlayer::Renderer::pause() { 299 (new AMessage(kWhatPause, this))->post(); 300 } 301 302 void NuPlayer::Renderer::resume() { 303 (new AMessage(kWhatResume, this))->post(); 304 } 305 306 void NuPlayer::Renderer::setVideoFrameRate(float fps) { 307 sp<AMessage> msg = new AMessage(kWhatSetVideoFrameRate, this); 308 msg->setFloat("frame-rate", fps); 309 msg->post(); 310 } 311 312 // Called on any threads. 313 status_t NuPlayer::Renderer::getCurrentPosition(int64_t *mediaUs) { 314 return mMediaClock->getMediaTime(ALooper::GetNowUs(), mediaUs); 315 } 316 317 void NuPlayer::Renderer::clearAudioFirstAnchorTime_l() { 318 mAudioFirstAnchorTimeMediaUs = -1; 319 mMediaClock->setStartingTimeMedia(-1); 320 } 321 322 void NuPlayer::Renderer::setAudioFirstAnchorTimeIfNeeded_l(int64_t mediaUs) { 323 if (mAudioFirstAnchorTimeMediaUs == -1) { 324 mAudioFirstAnchorTimeMediaUs = mediaUs; 325 mMediaClock->setStartingTimeMedia(mediaUs); 326 } 327 } 328 329 void NuPlayer::Renderer::clearAnchorTime_l() { 330 mMediaClock->clearAnchor(); 331 mAnchorTimeMediaUs = -1; 332 mAnchorNumFramesWritten = -1; 333 } 334 335 void NuPlayer::Renderer::setVideoLateByUs(int64_t lateUs) { 336 Mutex::Autolock autoLock(mLock); 337 mVideoLateByUs = lateUs; 338 } 339 340 int64_t NuPlayer::Renderer::getVideoLateByUs() { 341 Mutex::Autolock autoLock(mLock); 342 return mVideoLateByUs; 343 } 344 345 status_t NuPlayer::Renderer::openAudioSink( 346 const sp<AMessage> &format, 347 bool offloadOnly, 348 bool hasVideo, 349 uint32_t flags, 350 bool *isOffloaded) { 351 sp<AMessage> msg = new AMessage(kWhatOpenAudioSink, this); 352 msg->setMessage("format", format); 353 msg->setInt32("offload-only", offloadOnly); 354 msg->setInt32("has-video", hasVideo); 355 msg->setInt32("flags", flags); 356 357 sp<AMessage> response; 358 msg->postAndAwaitResponse(&response); 359 360 int32_t err; 361 if (!response->findInt32("err", &err)) { 362 err = INVALID_OPERATION; 363 } else if (err == OK && isOffloaded != NULL) { 364 int32_t offload; 365 CHECK(response->findInt32("offload", &offload)); 366 *isOffloaded = (offload != 0); 367 } 368 return err; 369 } 370 371 void NuPlayer::Renderer::closeAudioSink() { 372 sp<AMessage> msg = new AMessage(kWhatCloseAudioSink, this); 373 374 sp<AMessage> response; 375 msg->postAndAwaitResponse(&response); 376 } 377 378 void NuPlayer::Renderer::onMessageReceived(const sp<AMessage> &msg) { 379 switch (msg->what()) { 380 case kWhatOpenAudioSink: 381 { 382 sp<AMessage> format; 383 CHECK(msg->findMessage("format", &format)); 384 385 int32_t offloadOnly; 386 CHECK(msg->findInt32("offload-only", &offloadOnly)); 387 388 int32_t hasVideo; 389 CHECK(msg->findInt32("has-video", &hasVideo)); 390 391 uint32_t flags; 392 CHECK(msg->findInt32("flags", (int32_t *)&flags)); 393 394 status_t err = onOpenAudioSink(format, offloadOnly, hasVideo, flags); 395 396 sp<AMessage> response = new AMessage; 397 response->setInt32("err", err); 398 response->setInt32("offload", offloadingAudio()); 399 400 sp<AReplyToken> replyID; 401 CHECK(msg->senderAwaitsResponse(&replyID)); 402 response->postReply(replyID); 403 404 break; 405 } 406 407 case kWhatCloseAudioSink: 408 { 409 sp<AReplyToken> replyID; 410 CHECK(msg->senderAwaitsResponse(&replyID)); 411 412 onCloseAudioSink(); 413 414 sp<AMessage> response = new AMessage; 415 response->postReply(replyID); 416 break; 417 } 418 419 case kWhatStopAudioSink: 420 { 421 mAudioSink->stop(); 422 break; 423 } 424 425 case kWhatDrainAudioQueue: 426 { 427 mDrainAudioQueuePending = false; 428 429 int32_t generation; 430 CHECK(msg->findInt32("drainGeneration", &generation)); 431 if (generation != getDrainGeneration(true /* audio */)) { 432 break; 433 } 434 435 if (onDrainAudioQueue()) { 436 uint32_t numFramesPlayed; 437 CHECK_EQ(mAudioSink->getPosition(&numFramesPlayed), 438 (status_t)OK); 439 440 uint32_t numFramesPendingPlayout = 441 mNumFramesWritten - numFramesPlayed; 442 443 // This is how long the audio sink will have data to 444 // play back. 445 int64_t delayUs = 446 mAudioSink->msecsPerFrame() 447 * numFramesPendingPlayout * 1000ll; 448 if (mPlaybackRate > 1.0f) { 449 delayUs /= mPlaybackRate; 450 } 451 452 // Let's give it more data after about half that time 453 // has elapsed. 454 Mutex::Autolock autoLock(mLock); 455 postDrainAudioQueue_l(delayUs / 2); 456 } 457 break; 458 } 459 460 case kWhatDrainVideoQueue: 461 { 462 int32_t generation; 463 CHECK(msg->findInt32("drainGeneration", &generation)); 464 if (generation != getDrainGeneration(false /* audio */)) { 465 break; 466 } 467 468 mDrainVideoQueuePending = false; 469 470 onDrainVideoQueue(); 471 472 postDrainVideoQueue(); 473 break; 474 } 475 476 case kWhatPostDrainVideoQueue: 477 { 478 int32_t generation; 479 CHECK(msg->findInt32("drainGeneration", &generation)); 480 if (generation != getDrainGeneration(false /* audio */)) { 481 break; 482 } 483 484 mDrainVideoQueuePending = false; 485 postDrainVideoQueue(); 486 break; 487 } 488 489 case kWhatQueueBuffer: 490 { 491 onQueueBuffer(msg); 492 break; 493 } 494 495 case kWhatQueueEOS: 496 { 497 onQueueEOS(msg); 498 break; 499 } 500 501 case kWhatConfigPlayback: 502 { 503 sp<AReplyToken> replyID; 504 CHECK(msg->senderAwaitsResponse(&replyID)); 505 AudioPlaybackRate rate; 506 readFromAMessage(msg, &rate); 507 status_t err = onConfigPlayback(rate); 508 sp<AMessage> response = new AMessage; 509 response->setInt32("err", err); 510 response->postReply(replyID); 511 break; 512 } 513 514 case kWhatGetPlaybackSettings: 515 { 516 sp<AReplyToken> replyID; 517 CHECK(msg->senderAwaitsResponse(&replyID)); 518 AudioPlaybackRate rate = AUDIO_PLAYBACK_RATE_DEFAULT; 519 status_t err = onGetPlaybackSettings(&rate); 520 sp<AMessage> response = new AMessage; 521 if (err == OK) { 522 writeToAMessage(response, rate); 523 } 524 response->setInt32("err", err); 525 response->postReply(replyID); 526 break; 527 } 528 529 case kWhatConfigSync: 530 { 531 sp<AReplyToken> replyID; 532 CHECK(msg->senderAwaitsResponse(&replyID)); 533 AVSyncSettings sync; 534 float videoFpsHint; 535 readFromAMessage(msg, &sync, &videoFpsHint); 536 status_t err = onConfigSync(sync, videoFpsHint); 537 sp<AMessage> response = new AMessage; 538 response->setInt32("err", err); 539 response->postReply(replyID); 540 break; 541 } 542 543 case kWhatGetSyncSettings: 544 { 545 sp<AReplyToken> replyID; 546 CHECK(msg->senderAwaitsResponse(&replyID)); 547 548 ALOGV("kWhatGetSyncSettings"); 549 AVSyncSettings sync; 550 float videoFps = -1.f; 551 status_t err = onGetSyncSettings(&sync, &videoFps); 552 sp<AMessage> response = new AMessage; 553 if (err == OK) { 554 writeToAMessage(response, sync, videoFps); 555 } 556 response->setInt32("err", err); 557 response->postReply(replyID); 558 break; 559 } 560 561 case kWhatFlush: 562 { 563 onFlush(msg); 564 break; 565 } 566 567 case kWhatDisableOffloadAudio: 568 { 569 onDisableOffloadAudio(); 570 break; 571 } 572 573 case kWhatEnableOffloadAudio: 574 { 575 onEnableOffloadAudio(); 576 break; 577 } 578 579 case kWhatPause: 580 { 581 onPause(); 582 break; 583 } 584 585 case kWhatResume: 586 { 587 onResume(); 588 break; 589 } 590 591 case kWhatSetVideoFrameRate: 592 { 593 float fps; 594 CHECK(msg->findFloat("frame-rate", &fps)); 595 onSetVideoFrameRate(fps); 596 break; 597 } 598 599 case kWhatAudioTearDown: 600 { 601 onAudioTearDown(kDueToError); 602 break; 603 } 604 605 case kWhatAudioOffloadPauseTimeout: 606 { 607 int32_t generation; 608 CHECK(msg->findInt32("drainGeneration", &generation)); 609 if (generation != mAudioOffloadPauseTimeoutGeneration) { 610 break; 611 } 612 ALOGV("Audio Offload tear down due to pause timeout."); 613 onAudioTearDown(kDueToTimeout); 614 mWakeLock->release(); 615 break; 616 } 617 618 default: 619 TRESPASS(); 620 break; 621 } 622 } 623 624 void NuPlayer::Renderer::postDrainAudioQueue_l(int64_t delayUs) { 625 if (mDrainAudioQueuePending || mSyncQueues || mUseAudioCallback) { 626 return; 627 } 628 629 if (mAudioQueue.empty()) { 630 return; 631 } 632 633 mDrainAudioQueuePending = true; 634 sp<AMessage> msg = new AMessage(kWhatDrainAudioQueue, this); 635 msg->setInt32("drainGeneration", mAudioDrainGeneration); 636 msg->post(delayUs); 637 } 638 639 void NuPlayer::Renderer::prepareForMediaRenderingStart_l() { 640 mAudioRenderingStartGeneration = mAudioDrainGeneration; 641 mVideoRenderingStartGeneration = mVideoDrainGeneration; 642 } 643 644 void NuPlayer::Renderer::notifyIfMediaRenderingStarted_l() { 645 if (mVideoRenderingStartGeneration == mVideoDrainGeneration && 646 mAudioRenderingStartGeneration == mAudioDrainGeneration) { 647 mVideoRenderingStartGeneration = -1; 648 mAudioRenderingStartGeneration = -1; 649 650 sp<AMessage> notify = mNotify->dup(); 651 notify->setInt32("what", kWhatMediaRenderingStart); 652 notify->post(); 653 } 654 } 655 656 // static 657 size_t NuPlayer::Renderer::AudioSinkCallback( 658 MediaPlayerBase::AudioSink * /* audioSink */, 659 void *buffer, 660 size_t size, 661 void *cookie, 662 MediaPlayerBase::AudioSink::cb_event_t event) { 663 NuPlayer::Renderer *me = (NuPlayer::Renderer *)cookie; 664 665 switch (event) { 666 case MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER: 667 { 668 return me->fillAudioBuffer(buffer, size); 669 break; 670 } 671 672 case MediaPlayerBase::AudioSink::CB_EVENT_STREAM_END: 673 { 674 ALOGV("AudioSink::CB_EVENT_STREAM_END"); 675 me->notifyEOS(true /* audio */, ERROR_END_OF_STREAM); 676 break; 677 } 678 679 case MediaPlayerBase::AudioSink::CB_EVENT_TEAR_DOWN: 680 { 681 ALOGV("AudioSink::CB_EVENT_TEAR_DOWN"); 682 me->notifyAudioTearDown(); 683 break; 684 } 685 } 686 687 return 0; 688 } 689 690 size_t NuPlayer::Renderer::fillAudioBuffer(void *buffer, size_t size) { 691 Mutex::Autolock autoLock(mLock); 692 693 if (!mUseAudioCallback) { 694 return 0; 695 } 696 697 bool hasEOS = false; 698 699 size_t sizeCopied = 0; 700 bool firstEntry = true; 701 QueueEntry *entry; // will be valid after while loop if hasEOS is set. 702 while (sizeCopied < size && !mAudioQueue.empty()) { 703 entry = &*mAudioQueue.begin(); 704 705 if (entry->mBuffer == NULL) { // EOS 706 hasEOS = true; 707 mAudioQueue.erase(mAudioQueue.begin()); 708 break; 709 } 710 711 if (firstEntry && entry->mOffset == 0) { 712 firstEntry = false; 713 int64_t mediaTimeUs; 714 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 715 ALOGV("fillAudioBuffer: rendering audio at media time %.2f secs", mediaTimeUs / 1E6); 716 setAudioFirstAnchorTimeIfNeeded_l(mediaTimeUs); 717 } 718 719 size_t copy = entry->mBuffer->size() - entry->mOffset; 720 size_t sizeRemaining = size - sizeCopied; 721 if (copy > sizeRemaining) { 722 copy = sizeRemaining; 723 } 724 725 memcpy((char *)buffer + sizeCopied, 726 entry->mBuffer->data() + entry->mOffset, 727 copy); 728 729 entry->mOffset += copy; 730 if (entry->mOffset == entry->mBuffer->size()) { 731 entry->mNotifyConsumed->post(); 732 mAudioQueue.erase(mAudioQueue.begin()); 733 entry = NULL; 734 } 735 sizeCopied += copy; 736 737 notifyIfMediaRenderingStarted_l(); 738 } 739 740 if (mAudioFirstAnchorTimeMediaUs >= 0) { 741 int64_t nowUs = ALooper::GetNowUs(); 742 int64_t nowMediaUs = 743 mAudioFirstAnchorTimeMediaUs + getPlayedOutAudioDurationUs(nowUs); 744 // we don't know how much data we are queueing for offloaded tracks. 745 mMediaClock->updateAnchor(nowMediaUs, nowUs, INT64_MAX); 746 } 747 748 // for non-offloaded audio, we need to compute the frames written because 749 // there is no EVENT_STREAM_END notification. The frames written gives 750 // an estimate on the pending played out duration. 751 if (!offloadingAudio()) { 752 mNumFramesWritten += sizeCopied / mAudioSink->frameSize(); 753 } 754 755 if (hasEOS) { 756 (new AMessage(kWhatStopAudioSink, this))->post(); 757 // As there is currently no EVENT_STREAM_END callback notification for 758 // non-offloaded audio tracks, we need to post the EOS ourselves. 759 if (!offloadingAudio()) { 760 int64_t postEOSDelayUs = 0; 761 if (mAudioSink->needsTrailingPadding()) { 762 postEOSDelayUs = getPendingAudioPlayoutDurationUs(ALooper::GetNowUs()); 763 } 764 ALOGV("fillAudioBuffer: notifyEOS " 765 "mNumFramesWritten:%u finalResult:%d postEOSDelay:%lld", 766 mNumFramesWritten, entry->mFinalResult, (long long)postEOSDelayUs); 767 notifyEOS(true /* audio */, entry->mFinalResult, postEOSDelayUs); 768 } 769 } 770 return sizeCopied; 771 } 772 773 void NuPlayer::Renderer::drainAudioQueueUntilLastEOS() { 774 List<QueueEntry>::iterator it = mAudioQueue.begin(), itEOS = it; 775 bool foundEOS = false; 776 while (it != mAudioQueue.end()) { 777 int32_t eos; 778 QueueEntry *entry = &*it++; 779 if (entry->mBuffer == NULL 780 || (entry->mNotifyConsumed->findInt32("eos", &eos) && eos != 0)) { 781 itEOS = it; 782 foundEOS = true; 783 } 784 } 785 786 if (foundEOS) { 787 // post all replies before EOS and drop the samples 788 for (it = mAudioQueue.begin(); it != itEOS; it++) { 789 if (it->mBuffer == NULL) { 790 // delay doesn't matter as we don't even have an AudioTrack 791 notifyEOS(true /* audio */, it->mFinalResult); 792 } else { 793 it->mNotifyConsumed->post(); 794 } 795 } 796 mAudioQueue.erase(mAudioQueue.begin(), itEOS); 797 } 798 } 799 800 bool NuPlayer::Renderer::onDrainAudioQueue() { 801 // TODO: This call to getPosition checks if AudioTrack has been created 802 // in AudioSink before draining audio. If AudioTrack doesn't exist, then 803 // CHECKs on getPosition will fail. 804 // We still need to figure out why AudioTrack is not created when 805 // this function is called. One possible reason could be leftover 806 // audio. Another possible place is to check whether decoder 807 // has received INFO_FORMAT_CHANGED as the first buffer since 808 // AudioSink is opened there, and possible interactions with flush 809 // immediately after start. Investigate error message 810 // "vorbis_dsp_synthesis returned -135", along with RTSP. 811 uint32_t numFramesPlayed; 812 if (mAudioSink->getPosition(&numFramesPlayed) != OK) { 813 // When getPosition fails, renderer will not reschedule the draining 814 // unless new samples are queued. 815 // If we have pending EOS (or "eos" marker for discontinuities), we need 816 // to post these now as NuPlayerDecoder might be waiting for it. 817 drainAudioQueueUntilLastEOS(); 818 819 ALOGW("onDrainAudioQueue(): audio sink is not ready"); 820 return false; 821 } 822 823 #if 0 824 ssize_t numFramesAvailableToWrite = 825 mAudioSink->frameCount() - (mNumFramesWritten - numFramesPlayed); 826 827 if (numFramesAvailableToWrite == mAudioSink->frameCount()) { 828 ALOGI("audio sink underrun"); 829 } else { 830 ALOGV("audio queue has %d frames left to play", 831 mAudioSink->frameCount() - numFramesAvailableToWrite); 832 } 833 #endif 834 835 uint32_t prevFramesWritten = mNumFramesWritten; 836 while (!mAudioQueue.empty()) { 837 QueueEntry *entry = &*mAudioQueue.begin(); 838 839 mLastAudioBufferDrained = entry->mBufferOrdinal; 840 841 if (entry->mBuffer == NULL) { 842 // EOS 843 int64_t postEOSDelayUs = 0; 844 if (mAudioSink->needsTrailingPadding()) { 845 postEOSDelayUs = getPendingAudioPlayoutDurationUs(ALooper::GetNowUs()); 846 } 847 notifyEOS(true /* audio */, entry->mFinalResult, postEOSDelayUs); 848 849 mAudioQueue.erase(mAudioQueue.begin()); 850 entry = NULL; 851 if (mAudioSink->needsTrailingPadding()) { 852 // If we're not in gapless playback (i.e. through setNextPlayer), we 853 // need to stop the track here, because that will play out the last 854 // little bit at the end of the file. Otherwise short files won't play. 855 mAudioSink->stop(); 856 mNumFramesWritten = 0; 857 } 858 return false; 859 } 860 861 // ignore 0-sized buffer which could be EOS marker with no data 862 if (entry->mOffset == 0 && entry->mBuffer->size() > 0) { 863 int64_t mediaTimeUs; 864 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 865 ALOGV("onDrainAudioQueue: rendering audio at media time %.2f secs", 866 mediaTimeUs / 1E6); 867 onNewAudioMediaTime(mediaTimeUs); 868 } 869 870 size_t copy = entry->mBuffer->size() - entry->mOffset; 871 872 ssize_t written = mAudioSink->write(entry->mBuffer->data() + entry->mOffset, 873 copy, false /* blocking */); 874 if (written < 0) { 875 // An error in AudioSink write. Perhaps the AudioSink was not properly opened. 876 if (written == WOULD_BLOCK) { 877 ALOGV("AudioSink write would block when writing %zu bytes", copy); 878 } else { 879 ALOGE("AudioSink write error(%zd) when writing %zu bytes", written, copy); 880 notifyAudioTearDown(); 881 } 882 break; 883 } 884 885 entry->mOffset += written; 886 if (entry->mOffset == entry->mBuffer->size()) { 887 entry->mNotifyConsumed->post(); 888 mAudioQueue.erase(mAudioQueue.begin()); 889 890 entry = NULL; 891 } 892 893 size_t copiedFrames = written / mAudioSink->frameSize(); 894 mNumFramesWritten += copiedFrames; 895 896 { 897 Mutex::Autolock autoLock(mLock); 898 notifyIfMediaRenderingStarted_l(); 899 } 900 901 if (written != (ssize_t)copy) { 902 // A short count was received from AudioSink::write() 903 // 904 // AudioSink write is called in non-blocking mode. 905 // It may return with a short count when: 906 // 907 // 1) Size to be copied is not a multiple of the frame size. We consider this fatal. 908 // 2) The data to be copied exceeds the available buffer in AudioSink. 909 // 3) An error occurs and data has been partially copied to the buffer in AudioSink. 910 // 4) AudioSink is an AudioCache for data retrieval, and the AudioCache is exceeded. 911 912 // (Case 1) 913 // Must be a multiple of the frame size. If it is not a multiple of a frame size, it 914 // needs to fail, as we should not carry over fractional frames between calls. 915 CHECK_EQ(copy % mAudioSink->frameSize(), 0); 916 917 // (Case 2, 3, 4) 918 // Return early to the caller. 919 // Beware of calling immediately again as this may busy-loop if you are not careful. 920 ALOGV("AudioSink write short frame count %zd < %zu", written, copy); 921 break; 922 } 923 } 924 int64_t maxTimeMedia; 925 { 926 Mutex::Autolock autoLock(mLock); 927 maxTimeMedia = 928 mAnchorTimeMediaUs + 929 (int64_t)(max((long long)mNumFramesWritten - mAnchorNumFramesWritten, 0LL) 930 * 1000LL * mAudioSink->msecsPerFrame()); 931 } 932 mMediaClock->updateMaxTimeMedia(maxTimeMedia); 933 934 // calculate whether we need to reschedule another write. 935 bool reschedule = !mAudioQueue.empty() 936 && (!mPaused 937 || prevFramesWritten != mNumFramesWritten); // permit pause to fill buffers 938 //ALOGD("reschedule:%d empty:%d mPaused:%d prevFramesWritten:%u mNumFramesWritten:%u", 939 // reschedule, mAudioQueue.empty(), mPaused, prevFramesWritten, mNumFramesWritten); 940 return reschedule; 941 } 942 943 int64_t NuPlayer::Renderer::getDurationUsIfPlayedAtSampleRate(uint32_t numFrames) { 944 int32_t sampleRate = offloadingAudio() ? 945 mCurrentOffloadInfo.sample_rate : mCurrentPcmInfo.mSampleRate; 946 // TODO: remove the (int32_t) casting below as it may overflow at 12.4 hours. 947 return (int64_t)((int32_t)numFrames * 1000000LL / sampleRate); 948 } 949 950 // Calculate duration of pending samples if played at normal rate (i.e., 1.0). 951 int64_t NuPlayer::Renderer::getPendingAudioPlayoutDurationUs(int64_t nowUs) { 952 int64_t writtenAudioDurationUs = getDurationUsIfPlayedAtSampleRate(mNumFramesWritten); 953 return writtenAudioDurationUs - getPlayedOutAudioDurationUs(nowUs); 954 } 955 956 int64_t NuPlayer::Renderer::getRealTimeUs(int64_t mediaTimeUs, int64_t nowUs) { 957 int64_t realUs; 958 if (mMediaClock->getRealTimeFor(mediaTimeUs, &realUs) != OK) { 959 // If failed to get current position, e.g. due to audio clock is 960 // not ready, then just play out video immediately without delay. 961 return nowUs; 962 } 963 return realUs; 964 } 965 966 void NuPlayer::Renderer::onNewAudioMediaTime(int64_t mediaTimeUs) { 967 Mutex::Autolock autoLock(mLock); 968 // TRICKY: vorbis decoder generates multiple frames with the same 969 // timestamp, so only update on the first frame with a given timestamp 970 if (mediaTimeUs == mAnchorTimeMediaUs) { 971 return; 972 } 973 setAudioFirstAnchorTimeIfNeeded_l(mediaTimeUs); 974 int64_t nowUs = ALooper::GetNowUs(); 975 int64_t nowMediaUs = mediaTimeUs - getPendingAudioPlayoutDurationUs(nowUs); 976 mMediaClock->updateAnchor(nowMediaUs, nowUs, mediaTimeUs); 977 mAnchorNumFramesWritten = mNumFramesWritten; 978 mAnchorTimeMediaUs = mediaTimeUs; 979 } 980 981 // Called without mLock acquired. 982 void NuPlayer::Renderer::postDrainVideoQueue() { 983 if (mDrainVideoQueuePending 984 || getSyncQueues() 985 || (mPaused && mVideoSampleReceived)) { 986 return; 987 } 988 989 if (mVideoQueue.empty()) { 990 return; 991 } 992 993 QueueEntry &entry = *mVideoQueue.begin(); 994 995 sp<AMessage> msg = new AMessage(kWhatDrainVideoQueue, this); 996 msg->setInt32("drainGeneration", getDrainGeneration(false /* audio */)); 997 998 if (entry.mBuffer == NULL) { 999 // EOS doesn't carry a timestamp. 1000 msg->post(); 1001 mDrainVideoQueuePending = true; 1002 return; 1003 } 1004 1005 int64_t delayUs; 1006 int64_t nowUs = ALooper::GetNowUs(); 1007 int64_t realTimeUs; 1008 if (mFlags & FLAG_REAL_TIME) { 1009 int64_t mediaTimeUs; 1010 CHECK(entry.mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 1011 realTimeUs = mediaTimeUs; 1012 } else { 1013 int64_t mediaTimeUs; 1014 CHECK(entry.mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 1015 1016 { 1017 Mutex::Autolock autoLock(mLock); 1018 if (mAnchorTimeMediaUs < 0) { 1019 mMediaClock->updateAnchor(mediaTimeUs, nowUs, mediaTimeUs); 1020 mAnchorTimeMediaUs = mediaTimeUs; 1021 realTimeUs = nowUs; 1022 } else { 1023 realTimeUs = getRealTimeUs(mediaTimeUs, nowUs); 1024 } 1025 } 1026 if (!mHasAudio) { 1027 // smooth out videos >= 10fps 1028 mMediaClock->updateMaxTimeMedia(mediaTimeUs + 100000); 1029 } 1030 1031 // Heuristics to handle situation when media time changed without a 1032 // discontinuity. If we have not drained an audio buffer that was 1033 // received after this buffer, repost in 10 msec. Otherwise repost 1034 // in 500 msec. 1035 delayUs = realTimeUs - nowUs; 1036 if (delayUs > 500000) { 1037 int64_t postDelayUs = 500000; 1038 if (mHasAudio && (mLastAudioBufferDrained - entry.mBufferOrdinal) <= 0) { 1039 postDelayUs = 10000; 1040 } 1041 msg->setWhat(kWhatPostDrainVideoQueue); 1042 msg->post(postDelayUs); 1043 mVideoScheduler->restart(); 1044 ALOGI("possible video time jump of %dms, retrying in %dms", 1045 (int)(delayUs / 1000), (int)(postDelayUs / 1000)); 1046 mDrainVideoQueuePending = true; 1047 return; 1048 } 1049 } 1050 1051 realTimeUs = mVideoScheduler->schedule(realTimeUs * 1000) / 1000; 1052 int64_t twoVsyncsUs = 2 * (mVideoScheduler->getVsyncPeriod() / 1000); 1053 1054 delayUs = realTimeUs - nowUs; 1055 1056 ALOGW_IF(delayUs > 500000, "unusually high delayUs: %" PRId64, delayUs); 1057 // post 2 display refreshes before rendering is due 1058 msg->post(delayUs > twoVsyncsUs ? delayUs - twoVsyncsUs : 0); 1059 1060 mDrainVideoQueuePending = true; 1061 } 1062 1063 void NuPlayer::Renderer::onDrainVideoQueue() { 1064 if (mVideoQueue.empty()) { 1065 return; 1066 } 1067 1068 QueueEntry *entry = &*mVideoQueue.begin(); 1069 1070 if (entry->mBuffer == NULL) { 1071 // EOS 1072 1073 notifyEOS(false /* audio */, entry->mFinalResult); 1074 1075 mVideoQueue.erase(mVideoQueue.begin()); 1076 entry = NULL; 1077 1078 setVideoLateByUs(0); 1079 return; 1080 } 1081 1082 int64_t nowUs = -1; 1083 int64_t realTimeUs; 1084 if (mFlags & FLAG_REAL_TIME) { 1085 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &realTimeUs)); 1086 } else { 1087 int64_t mediaTimeUs; 1088 CHECK(entry->mBuffer->meta()->findInt64("timeUs", &mediaTimeUs)); 1089 1090 nowUs = ALooper::GetNowUs(); 1091 realTimeUs = getRealTimeUs(mediaTimeUs, nowUs); 1092 } 1093 1094 bool tooLate = false; 1095 1096 if (!mPaused) { 1097 if (nowUs == -1) { 1098 nowUs = ALooper::GetNowUs(); 1099 } 1100 setVideoLateByUs(nowUs - realTimeUs); 1101 tooLate = (mVideoLateByUs > 40000); 1102 1103 if (tooLate) { 1104 ALOGV("video late by %lld us (%.2f secs)", 1105 (long long)mVideoLateByUs, mVideoLateByUs / 1E6); 1106 } else { 1107 int64_t mediaUs = 0; 1108 mMediaClock->getMediaTime(realTimeUs, &mediaUs); 1109 ALOGV("rendering video at media time %.2f secs", 1110 (mFlags & FLAG_REAL_TIME ? realTimeUs : 1111 mediaUs) / 1E6); 1112 } 1113 } else { 1114 setVideoLateByUs(0); 1115 if (!mVideoSampleReceived && !mHasAudio) { 1116 // This will ensure that the first frame after a flush won't be used as anchor 1117 // when renderer is in paused state, because resume can happen any time after seek. 1118 Mutex::Autolock autoLock(mLock); 1119 clearAnchorTime_l(); 1120 } 1121 } 1122 1123 entry->mNotifyConsumed->setInt64("timestampNs", realTimeUs * 1000ll); 1124 entry->mNotifyConsumed->setInt32("render", !tooLate); 1125 entry->mNotifyConsumed->post(); 1126 mVideoQueue.erase(mVideoQueue.begin()); 1127 entry = NULL; 1128 1129 mVideoSampleReceived = true; 1130 1131 if (!mPaused) { 1132 if (!mVideoRenderingStarted) { 1133 mVideoRenderingStarted = true; 1134 notifyVideoRenderingStart(); 1135 } 1136 Mutex::Autolock autoLock(mLock); 1137 notifyIfMediaRenderingStarted_l(); 1138 } 1139 } 1140 1141 void NuPlayer::Renderer::notifyVideoRenderingStart() { 1142 sp<AMessage> notify = mNotify->dup(); 1143 notify->setInt32("what", kWhatVideoRenderingStart); 1144 notify->post(); 1145 } 1146 1147 void NuPlayer::Renderer::notifyEOS(bool audio, status_t finalResult, int64_t delayUs) { 1148 sp<AMessage> notify = mNotify->dup(); 1149 notify->setInt32("what", kWhatEOS); 1150 notify->setInt32("audio", static_cast<int32_t>(audio)); 1151 notify->setInt32("finalResult", finalResult); 1152 notify->post(delayUs); 1153 } 1154 1155 void NuPlayer::Renderer::notifyAudioTearDown() { 1156 (new AMessage(kWhatAudioTearDown, this))->post(); 1157 } 1158 1159 void NuPlayer::Renderer::onQueueBuffer(const sp<AMessage> &msg) { 1160 int32_t audio; 1161 CHECK(msg->findInt32("audio", &audio)); 1162 1163 if (dropBufferIfStale(audio, msg)) { 1164 return; 1165 } 1166 1167 if (audio) { 1168 mHasAudio = true; 1169 } else { 1170 mHasVideo = true; 1171 } 1172 1173 if (mHasVideo) { 1174 if (mVideoScheduler == NULL) { 1175 mVideoScheduler = new VideoFrameScheduler(); 1176 mVideoScheduler->init(); 1177 } 1178 } 1179 1180 sp<ABuffer> buffer; 1181 CHECK(msg->findBuffer("buffer", &buffer)); 1182 1183 sp<AMessage> notifyConsumed; 1184 CHECK(msg->findMessage("notifyConsumed", ¬ifyConsumed)); 1185 1186 QueueEntry entry; 1187 entry.mBuffer = buffer; 1188 entry.mNotifyConsumed = notifyConsumed; 1189 entry.mOffset = 0; 1190 entry.mFinalResult = OK; 1191 entry.mBufferOrdinal = ++mTotalBuffersQueued; 1192 1193 if (audio) { 1194 Mutex::Autolock autoLock(mLock); 1195 mAudioQueue.push_back(entry); 1196 postDrainAudioQueue_l(); 1197 } else { 1198 mVideoQueue.push_back(entry); 1199 postDrainVideoQueue(); 1200 } 1201 1202 Mutex::Autolock autoLock(mLock); 1203 if (!mSyncQueues || mAudioQueue.empty() || mVideoQueue.empty()) { 1204 return; 1205 } 1206 1207 sp<ABuffer> firstAudioBuffer = (*mAudioQueue.begin()).mBuffer; 1208 sp<ABuffer> firstVideoBuffer = (*mVideoQueue.begin()).mBuffer; 1209 1210 if (firstAudioBuffer == NULL || firstVideoBuffer == NULL) { 1211 // EOS signalled on either queue. 1212 syncQueuesDone_l(); 1213 return; 1214 } 1215 1216 int64_t firstAudioTimeUs; 1217 int64_t firstVideoTimeUs; 1218 CHECK(firstAudioBuffer->meta() 1219 ->findInt64("timeUs", &firstAudioTimeUs)); 1220 CHECK(firstVideoBuffer->meta() 1221 ->findInt64("timeUs", &firstVideoTimeUs)); 1222 1223 int64_t diff = firstVideoTimeUs - firstAudioTimeUs; 1224 1225 ALOGV("queueDiff = %.2f secs", diff / 1E6); 1226 1227 if (diff > 100000ll) { 1228 // Audio data starts More than 0.1 secs before video. 1229 // Drop some audio. 1230 1231 (*mAudioQueue.begin()).mNotifyConsumed->post(); 1232 mAudioQueue.erase(mAudioQueue.begin()); 1233 return; 1234 } 1235 1236 syncQueuesDone_l(); 1237 } 1238 1239 void NuPlayer::Renderer::syncQueuesDone_l() { 1240 if (!mSyncQueues) { 1241 return; 1242 } 1243 1244 mSyncQueues = false; 1245 1246 if (!mAudioQueue.empty()) { 1247 postDrainAudioQueue_l(); 1248 } 1249 1250 if (!mVideoQueue.empty()) { 1251 mLock.unlock(); 1252 postDrainVideoQueue(); 1253 mLock.lock(); 1254 } 1255 } 1256 1257 void NuPlayer::Renderer::onQueueEOS(const sp<AMessage> &msg) { 1258 int32_t audio; 1259 CHECK(msg->findInt32("audio", &audio)); 1260 1261 if (dropBufferIfStale(audio, msg)) { 1262 return; 1263 } 1264 1265 int32_t finalResult; 1266 CHECK(msg->findInt32("finalResult", &finalResult)); 1267 1268 QueueEntry entry; 1269 entry.mOffset = 0; 1270 entry.mFinalResult = finalResult; 1271 1272 if (audio) { 1273 Mutex::Autolock autoLock(mLock); 1274 if (mAudioQueue.empty() && mSyncQueues) { 1275 syncQueuesDone_l(); 1276 } 1277 mAudioQueue.push_back(entry); 1278 postDrainAudioQueue_l(); 1279 } else { 1280 if (mVideoQueue.empty() && getSyncQueues()) { 1281 Mutex::Autolock autoLock(mLock); 1282 syncQueuesDone_l(); 1283 } 1284 mVideoQueue.push_back(entry); 1285 postDrainVideoQueue(); 1286 } 1287 } 1288 1289 void NuPlayer::Renderer::onFlush(const sp<AMessage> &msg) { 1290 int32_t audio, notifyComplete; 1291 CHECK(msg->findInt32("audio", &audio)); 1292 1293 { 1294 Mutex::Autolock autoLock(mLock); 1295 if (audio) { 1296 notifyComplete = mNotifyCompleteAudio; 1297 mNotifyCompleteAudio = false; 1298 } else { 1299 notifyComplete = mNotifyCompleteVideo; 1300 mNotifyCompleteVideo = false; 1301 } 1302 1303 // If we're currently syncing the queues, i.e. dropping audio while 1304 // aligning the first audio/video buffer times and only one of the 1305 // two queues has data, we may starve that queue by not requesting 1306 // more buffers from the decoder. If the other source then encounters 1307 // a discontinuity that leads to flushing, we'll never find the 1308 // corresponding discontinuity on the other queue. 1309 // Therefore we'll stop syncing the queues if at least one of them 1310 // is flushed. 1311 syncQueuesDone_l(); 1312 clearAnchorTime_l(); 1313 } 1314 1315 ALOGV("flushing %s", audio ? "audio" : "video"); 1316 if (audio) { 1317 { 1318 Mutex::Autolock autoLock(mLock); 1319 flushQueue(&mAudioQueue); 1320 1321 ++mAudioDrainGeneration; 1322 prepareForMediaRenderingStart_l(); 1323 1324 // the frame count will be reset after flush. 1325 clearAudioFirstAnchorTime_l(); 1326 } 1327 1328 mDrainAudioQueuePending = false; 1329 1330 if (offloadingAudio()) { 1331 mAudioSink->pause(); 1332 mAudioSink->flush(); 1333 if (!mPaused) { 1334 mAudioSink->start(); 1335 } 1336 } else { 1337 mAudioSink->pause(); 1338 mAudioSink->flush(); 1339 // Call stop() to signal to the AudioSink to completely fill the 1340 // internal buffer before resuming playback. 1341 mAudioSink->stop(); 1342 if (!mPaused) { 1343 mAudioSink->start(); 1344 } 1345 mNumFramesWritten = 0; 1346 } 1347 } else { 1348 flushQueue(&mVideoQueue); 1349 1350 mDrainVideoQueuePending = false; 1351 1352 if (mVideoScheduler != NULL) { 1353 mVideoScheduler->restart(); 1354 } 1355 1356 Mutex::Autolock autoLock(mLock); 1357 ++mVideoDrainGeneration; 1358 prepareForMediaRenderingStart_l(); 1359 } 1360 1361 mVideoSampleReceived = false; 1362 1363 if (notifyComplete) { 1364 notifyFlushComplete(audio); 1365 } 1366 } 1367 1368 void NuPlayer::Renderer::flushQueue(List<QueueEntry> *queue) { 1369 while (!queue->empty()) { 1370 QueueEntry *entry = &*queue->begin(); 1371 1372 if (entry->mBuffer != NULL) { 1373 entry->mNotifyConsumed->post(); 1374 } 1375 1376 queue->erase(queue->begin()); 1377 entry = NULL; 1378 } 1379 } 1380 1381 void NuPlayer::Renderer::notifyFlushComplete(bool audio) { 1382 sp<AMessage> notify = mNotify->dup(); 1383 notify->setInt32("what", kWhatFlushComplete); 1384 notify->setInt32("audio", static_cast<int32_t>(audio)); 1385 notify->post(); 1386 } 1387 1388 bool NuPlayer::Renderer::dropBufferIfStale( 1389 bool audio, const sp<AMessage> &msg) { 1390 int32_t queueGeneration; 1391 CHECK(msg->findInt32("queueGeneration", &queueGeneration)); 1392 1393 if (queueGeneration == getQueueGeneration(audio)) { 1394 return false; 1395 } 1396 1397 sp<AMessage> notifyConsumed; 1398 if (msg->findMessage("notifyConsumed", ¬ifyConsumed)) { 1399 notifyConsumed->post(); 1400 } 1401 1402 return true; 1403 } 1404 1405 void NuPlayer::Renderer::onAudioSinkChanged() { 1406 if (offloadingAudio()) { 1407 return; 1408 } 1409 CHECK(!mDrainAudioQueuePending); 1410 mNumFramesWritten = 0; 1411 { 1412 Mutex::Autolock autoLock(mLock); 1413 mAnchorNumFramesWritten = -1; 1414 } 1415 uint32_t written; 1416 if (mAudioSink->getFramesWritten(&written) == OK) { 1417 mNumFramesWritten = written; 1418 } 1419 } 1420 1421 void NuPlayer::Renderer::onDisableOffloadAudio() { 1422 Mutex::Autolock autoLock(mLock); 1423 mFlags &= ~FLAG_OFFLOAD_AUDIO; 1424 ++mAudioDrainGeneration; 1425 if (mAudioRenderingStartGeneration != -1) { 1426 prepareForMediaRenderingStart_l(); 1427 } 1428 } 1429 1430 void NuPlayer::Renderer::onEnableOffloadAudio() { 1431 Mutex::Autolock autoLock(mLock); 1432 mFlags |= FLAG_OFFLOAD_AUDIO; 1433 ++mAudioDrainGeneration; 1434 if (mAudioRenderingStartGeneration != -1) { 1435 prepareForMediaRenderingStart_l(); 1436 } 1437 } 1438 1439 void NuPlayer::Renderer::onPause() { 1440 if (mPaused) { 1441 return; 1442 } 1443 1444 { 1445 Mutex::Autolock autoLock(mLock); 1446 // we do not increment audio drain generation so that we fill audio buffer during pause. 1447 ++mVideoDrainGeneration; 1448 prepareForMediaRenderingStart_l(); 1449 mPaused = true; 1450 mMediaClock->setPlaybackRate(0.0); 1451 } 1452 1453 mDrainAudioQueuePending = false; 1454 mDrainVideoQueuePending = false; 1455 1456 if (mHasAudio) { 1457 mAudioSink->pause(); 1458 startAudioOffloadPauseTimeout(); 1459 } 1460 1461 ALOGV("now paused audio queue has %zu entries, video has %zu entries", 1462 mAudioQueue.size(), mVideoQueue.size()); 1463 } 1464 1465 void NuPlayer::Renderer::onResume() { 1466 if (!mPaused) { 1467 return; 1468 } 1469 1470 if (mHasAudio) { 1471 cancelAudioOffloadPauseTimeout(); 1472 status_t err = mAudioSink->start(); 1473 if (err != OK) { 1474 notifyAudioTearDown(); 1475 } 1476 } 1477 1478 { 1479 Mutex::Autolock autoLock(mLock); 1480 mPaused = false; 1481 1482 // configure audiosink as we did not do it when pausing 1483 if (mAudioSink != NULL && mAudioSink->ready()) { 1484 mAudioSink->setPlaybackRate(mPlaybackSettings); 1485 } 1486 1487 mMediaClock->setPlaybackRate(mPlaybackRate); 1488 1489 if (!mAudioQueue.empty()) { 1490 postDrainAudioQueue_l(); 1491 } 1492 } 1493 1494 if (!mVideoQueue.empty()) { 1495 postDrainVideoQueue(); 1496 } 1497 } 1498 1499 void NuPlayer::Renderer::onSetVideoFrameRate(float fps) { 1500 if (mVideoScheduler == NULL) { 1501 mVideoScheduler = new VideoFrameScheduler(); 1502 } 1503 mVideoScheduler->init(fps); 1504 } 1505 1506 int32_t NuPlayer::Renderer::getQueueGeneration(bool audio) { 1507 Mutex::Autolock autoLock(mLock); 1508 return (audio ? mAudioQueueGeneration : mVideoQueueGeneration); 1509 } 1510 1511 int32_t NuPlayer::Renderer::getDrainGeneration(bool audio) { 1512 Mutex::Autolock autoLock(mLock); 1513 return (audio ? mAudioDrainGeneration : mVideoDrainGeneration); 1514 } 1515 1516 bool NuPlayer::Renderer::getSyncQueues() { 1517 Mutex::Autolock autoLock(mLock); 1518 return mSyncQueues; 1519 } 1520 1521 // TODO: Remove unnecessary calls to getPlayedOutAudioDurationUs() 1522 // as it acquires locks and may query the audio driver. 1523 // 1524 // Some calls could conceivably retrieve extrapolated data instead of 1525 // accessing getTimestamp() or getPosition() every time a data buffer with 1526 // a media time is received. 1527 // 1528 // Calculate duration of played samples if played at normal rate (i.e., 1.0). 1529 int64_t NuPlayer::Renderer::getPlayedOutAudioDurationUs(int64_t nowUs) { 1530 uint32_t numFramesPlayed; 1531 int64_t numFramesPlayedAt; 1532 AudioTimestamp ts; 1533 static const int64_t kStaleTimestamp100ms = 100000; 1534 1535 status_t res = mAudioSink->getTimestamp(ts); 1536 if (res == OK) { // case 1: mixing audio tracks and offloaded tracks. 1537 numFramesPlayed = ts.mPosition; 1538 numFramesPlayedAt = 1539 ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000; 1540 const int64_t timestampAge = nowUs - numFramesPlayedAt; 1541 if (timestampAge > kStaleTimestamp100ms) { 1542 // This is an audio FIXME. 1543 // getTimestamp returns a timestamp which may come from audio mixing threads. 1544 // After pausing, the MixerThread may go idle, thus the mTime estimate may 1545 // become stale. Assuming that the MixerThread runs 20ms, with FastMixer at 5ms, 1546 // the max latency should be about 25ms with an average around 12ms (to be verified). 1547 // For safety we use 100ms. 1548 ALOGV("getTimestamp: returned stale timestamp nowUs(%lld) numFramesPlayedAt(%lld)", 1549 (long long)nowUs, (long long)numFramesPlayedAt); 1550 numFramesPlayedAt = nowUs - kStaleTimestamp100ms; 1551 } 1552 //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAt); 1553 } else if (res == WOULD_BLOCK) { // case 2: transitory state on start of a new track 1554 numFramesPlayed = 0; 1555 numFramesPlayedAt = nowUs; 1556 //ALOGD("getTimestamp: WOULD_BLOCK %d %lld", 1557 // numFramesPlayed, (long long)numFramesPlayedAt); 1558 } else { // case 3: transitory at new track or audio fast tracks. 1559 res = mAudioSink->getPosition(&numFramesPlayed); 1560 CHECK_EQ(res, (status_t)OK); 1561 numFramesPlayedAt = nowUs; 1562 numFramesPlayedAt += 1000LL * mAudioSink->latency() / 2; /* XXX */ 1563 //ALOGD("getPosition: %u %lld", numFramesPlayed, (long long)numFramesPlayedAt); 1564 } 1565 1566 //CHECK_EQ(numFramesPlayed & (1 << 31), 0); // can't be negative until 12.4 hrs, test 1567 int64_t durationUs = getDurationUsIfPlayedAtSampleRate(numFramesPlayed) 1568 + nowUs - numFramesPlayedAt; 1569 if (durationUs < 0) { 1570 // Occurs when numFramesPlayed position is very small and the following: 1571 // (1) In case 1, the time nowUs is computed before getTimestamp() is called and 1572 // numFramesPlayedAt is greater than nowUs by time more than numFramesPlayed. 1573 // (2) In case 3, using getPosition and adding mAudioSink->latency() to 1574 // numFramesPlayedAt, by a time amount greater than numFramesPlayed. 1575 // 1576 // Both of these are transitory conditions. 1577 ALOGV("getPlayedOutAudioDurationUs: negative duration %lld set to zero", (long long)durationUs); 1578 durationUs = 0; 1579 } 1580 ALOGV("getPlayedOutAudioDurationUs(%lld) nowUs(%lld) frames(%u) framesAt(%lld)", 1581 (long long)durationUs, (long long)nowUs, numFramesPlayed, (long long)numFramesPlayedAt); 1582 return durationUs; 1583 } 1584 1585 void NuPlayer::Renderer::onAudioTearDown(AudioTearDownReason reason) { 1586 if (mAudioTornDown) { 1587 return; 1588 } 1589 mAudioTornDown = true; 1590 1591 int64_t currentPositionUs; 1592 sp<AMessage> notify = mNotify->dup(); 1593 if (getCurrentPosition(¤tPositionUs) == OK) { 1594 notify->setInt64("positionUs", currentPositionUs); 1595 } 1596 1597 mAudioSink->stop(); 1598 mAudioSink->flush(); 1599 1600 notify->setInt32("what", kWhatAudioTearDown); 1601 notify->setInt32("reason", reason); 1602 notify->post(); 1603 } 1604 1605 void NuPlayer::Renderer::startAudioOffloadPauseTimeout() { 1606 if (offloadingAudio()) { 1607 mWakeLock->acquire(); 1608 sp<AMessage> msg = new AMessage(kWhatAudioOffloadPauseTimeout, this); 1609 msg->setInt32("drainGeneration", mAudioOffloadPauseTimeoutGeneration); 1610 msg->post(kOffloadPauseMaxUs); 1611 } 1612 } 1613 1614 void NuPlayer::Renderer::cancelAudioOffloadPauseTimeout() { 1615 if (offloadingAudio()) { 1616 mWakeLock->release(true); 1617 ++mAudioOffloadPauseTimeoutGeneration; 1618 } 1619 } 1620 1621 status_t NuPlayer::Renderer::onOpenAudioSink( 1622 const sp<AMessage> &format, 1623 bool offloadOnly, 1624 bool hasVideo, 1625 uint32_t flags) { 1626 ALOGV("openAudioSink: offloadOnly(%d) offloadingAudio(%d)", 1627 offloadOnly, offloadingAudio()); 1628 bool audioSinkChanged = false; 1629 1630 int32_t numChannels; 1631 CHECK(format->findInt32("channel-count", &numChannels)); 1632 1633 int32_t channelMask; 1634 if (!format->findInt32("channel-mask", &channelMask)) { 1635 // signal to the AudioSink to derive the mask from count. 1636 channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER; 1637 } 1638 1639 int32_t sampleRate; 1640 CHECK(format->findInt32("sample-rate", &sampleRate)); 1641 1642 if (offloadingAudio()) { 1643 audio_format_t audioFormat = AUDIO_FORMAT_PCM_16_BIT; 1644 AString mime; 1645 CHECK(format->findString("mime", &mime)); 1646 status_t err = mapMimeToAudioFormat(audioFormat, mime.c_str()); 1647 1648 if (err != OK) { 1649 ALOGE("Couldn't map mime \"%s\" to a valid " 1650 "audio_format", mime.c_str()); 1651 onDisableOffloadAudio(); 1652 } else { 1653 ALOGV("Mime \"%s\" mapped to audio_format 0x%x", 1654 mime.c_str(), audioFormat); 1655 1656 int avgBitRate = -1; 1657 format->findInt32("bit-rate", &avgBitRate); 1658 1659 int32_t aacProfile = -1; 1660 if (audioFormat == AUDIO_FORMAT_AAC 1661 && format->findInt32("aac-profile", &aacProfile)) { 1662 // Redefine AAC format as per aac profile 1663 mapAACProfileToAudioFormat( 1664 audioFormat, 1665 aacProfile); 1666 } 1667 1668 audio_offload_info_t offloadInfo = AUDIO_INFO_INITIALIZER; 1669 offloadInfo.duration_us = -1; 1670 format->findInt64( 1671 "durationUs", &offloadInfo.duration_us); 1672 offloadInfo.sample_rate = sampleRate; 1673 offloadInfo.channel_mask = channelMask; 1674 offloadInfo.format = audioFormat; 1675 offloadInfo.stream_type = AUDIO_STREAM_MUSIC; 1676 offloadInfo.bit_rate = avgBitRate; 1677 offloadInfo.has_video = hasVideo; 1678 offloadInfo.is_streaming = true; 1679 1680 if (memcmp(&mCurrentOffloadInfo, &offloadInfo, sizeof(offloadInfo)) == 0) { 1681 ALOGV("openAudioSink: no change in offload mode"); 1682 // no change from previous configuration, everything ok. 1683 return OK; 1684 } 1685 mCurrentPcmInfo = AUDIO_PCMINFO_INITIALIZER; 1686 1687 ALOGV("openAudioSink: try to open AudioSink in offload mode"); 1688 uint32_t offloadFlags = flags; 1689 offloadFlags |= AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD; 1690 offloadFlags &= ~AUDIO_OUTPUT_FLAG_DEEP_BUFFER; 1691 audioSinkChanged = true; 1692 mAudioSink->close(); 1693 1694 err = mAudioSink->open( 1695 sampleRate, 1696 numChannels, 1697 (audio_channel_mask_t)channelMask, 1698 audioFormat, 1699 0 /* bufferCount - unused */, 1700 &NuPlayer::Renderer::AudioSinkCallback, 1701 this, 1702 (audio_output_flags_t)offloadFlags, 1703 &offloadInfo); 1704 1705 if (err == OK) { 1706 err = mAudioSink->setPlaybackRate(mPlaybackSettings); 1707 } 1708 1709 if (err == OK) { 1710 // If the playback is offloaded to h/w, we pass 1711 // the HAL some metadata information. 1712 // We don't want to do this for PCM because it 1713 // will be going through the AudioFlinger mixer 1714 // before reaching the hardware. 1715 // TODO 1716 mCurrentOffloadInfo = offloadInfo; 1717 if (!mPaused) { // for preview mode, don't start if paused 1718 err = mAudioSink->start(); 1719 } 1720 ALOGV_IF(err == OK, "openAudioSink: offload succeeded"); 1721 } 1722 if (err != OK) { 1723 // Clean up, fall back to non offload mode. 1724 mAudioSink->close(); 1725 onDisableOffloadAudio(); 1726 mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER; 1727 ALOGV("openAudioSink: offload failed"); 1728 } else { 1729 mUseAudioCallback = true; // offload mode transfers data through callback 1730 ++mAudioDrainGeneration; // discard pending kWhatDrainAudioQueue message. 1731 } 1732 } 1733 } 1734 if (!offloadOnly && !offloadingAudio()) { 1735 ALOGV("openAudioSink: open AudioSink in NON-offload mode"); 1736 uint32_t pcmFlags = flags; 1737 pcmFlags &= ~AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD; 1738 1739 const PcmInfo info = { 1740 (audio_channel_mask_t)channelMask, 1741 (audio_output_flags_t)pcmFlags, 1742 AUDIO_FORMAT_PCM_16_BIT, // TODO: change to audioFormat 1743 numChannels, 1744 sampleRate 1745 }; 1746 if (memcmp(&mCurrentPcmInfo, &info, sizeof(info)) == 0) { 1747 ALOGV("openAudioSink: no change in pcm mode"); 1748 // no change from previous configuration, everything ok. 1749 return OK; 1750 } 1751 1752 audioSinkChanged = true; 1753 mAudioSink->close(); 1754 mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER; 1755 // Note: It is possible to set up the callback, but not use it to send audio data. 1756 // This requires a fix in AudioSink to explicitly specify the transfer mode. 1757 mUseAudioCallback = getUseAudioCallbackSetting(); 1758 if (mUseAudioCallback) { 1759 ++mAudioDrainGeneration; // discard pending kWhatDrainAudioQueue message. 1760 } 1761 1762 // Compute the desired buffer size. 1763 // For callback mode, the amount of time before wakeup is about half the buffer size. 1764 const uint32_t frameCount = 1765 (unsigned long long)sampleRate * getAudioSinkPcmMsSetting() / 1000; 1766 1767 status_t err = mAudioSink->open( 1768 sampleRate, 1769 numChannels, 1770 (audio_channel_mask_t)channelMask, 1771 AUDIO_FORMAT_PCM_16_BIT, 1772 0 /* bufferCount - unused */, 1773 mUseAudioCallback ? &NuPlayer::Renderer::AudioSinkCallback : NULL, 1774 mUseAudioCallback ? this : NULL, 1775 (audio_output_flags_t)pcmFlags, 1776 NULL, 1777 true /* doNotReconnect */, 1778 frameCount); 1779 if (err == OK) { 1780 err = mAudioSink->setPlaybackRate(mPlaybackSettings); 1781 } 1782 if (err != OK) { 1783 ALOGW("openAudioSink: non offloaded open failed status: %d", err); 1784 mCurrentPcmInfo = AUDIO_PCMINFO_INITIALIZER; 1785 return err; 1786 } 1787 mCurrentPcmInfo = info; 1788 if (!mPaused) { // for preview mode, don't start if paused 1789 mAudioSink->start(); 1790 } 1791 } 1792 if (audioSinkChanged) { 1793 onAudioSinkChanged(); 1794 } 1795 mAudioTornDown = false; 1796 return OK; 1797 } 1798 1799 void NuPlayer::Renderer::onCloseAudioSink() { 1800 mAudioSink->close(); 1801 mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER; 1802 mCurrentPcmInfo = AUDIO_PCMINFO_INITIALIZER; 1803 } 1804 1805 } // namespace android 1806 1807