MediaPlayerService.cpp revision 12a5f28f5ce727a2ab124a8c3a3f1308dd16bf9b
1/* 2** 3** Copyright 2008, The Android Open Source Project 4** 5** Licensed under the Apache License, Version 2.0 (the "License"); 6** you may not use this file except in compliance with the License. 7** You may obtain a copy of the License at 8** 9** http://www.apache.org/licenses/LICENSE-2.0 10** 11** Unless required by applicable law or agreed to in writing, software 12** distributed under the License is distributed on an "AS IS" BASIS, 13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14** See the License for the specific language governing permissions and 15** limitations under the License. 16*/ 17 18// Proxy for media player implementations 19 20//#define LOG_NDEBUG 0 21#define LOG_TAG "MediaPlayerService" 22#include <utils/Log.h> 23 24#include <sys/types.h> 25#include <sys/stat.h> 26#include <sys/time.h> 27#include <dirent.h> 28#include <unistd.h> 29 30#include <string.h> 31 32#include <cutils/atomic.h> 33#include <cutils/properties.h> // for property_get 34 35#include <utils/misc.h> 36 37#include <binder/IPCThreadState.h> 38#include <binder/IServiceManager.h> 39#include <binder/MemoryHeapBase.h> 40#include <binder/MemoryBase.h> 41#include <gui/Surface.h> 42#include <utils/Errors.h> // for status_t 43#include <utils/String8.h> 44#include <utils/SystemClock.h> 45#include <utils/Timers.h> 46#include <utils/Vector.h> 47 48#include <media/AudioPolicyHelper.h> 49#include <media/IMediaHTTPService.h> 50#include <media/IRemoteDisplay.h> 51#include <media/IRemoteDisplayClient.h> 52#include <media/MediaPlayerInterface.h> 53#include <media/mediarecorder.h> 54#include <media/MediaMetadataRetrieverInterface.h> 55#include <media/Metadata.h> 56#include <media/AudioTrack.h> 57#include <media/MemoryLeakTrackUtil.h> 58#include <media/stagefright/MediaCodecList.h> 59#include <media/stagefright/MediaErrors.h> 60#include <media/stagefright/Utils.h> 61#include <media/stagefright/foundation/ADebug.h> 62#include <media/stagefright/foundation/ALooperRoster.h> 63#include <mediautils/BatteryNotifier.h> 64 65#include <memunreachable/memunreachable.h> 66#include <system/audio.h> 67 68#include <private/android_filesystem_config.h> 69 70#include "ActivityManager.h" 71#include "MediaRecorderClient.h" 72#include "MediaPlayerService.h" 73#include "MetadataRetrieverClient.h" 74#include "MediaPlayerFactory.h" 75 76#include "TestPlayerStub.h" 77#include "nuplayer/NuPlayerDriver.h" 78 79#include <OMX.h> 80 81#include "HDCP.h" 82#include "HTTPBase.h" 83#include "RemoteDisplay.h" 84 85namespace { 86using android::media::Metadata; 87using android::status_t; 88using android::OK; 89using android::BAD_VALUE; 90using android::NOT_ENOUGH_DATA; 91using android::Parcel; 92 93// Max number of entries in the filter. 94const int kMaxFilterSize = 64; // I pulled that out of thin air. 95 96const float kMaxRequiredSpeed = 8.0f; // for PCM tracks allow up to 8x speedup. 97 98// FIXME: Move all the metadata related function in the Metadata.cpp 99 100 101// Unmarshall a filter from a Parcel. 102// Filter format in a parcel: 103// 104// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 105// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 106// | number of entries (n) | 107// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 108// | metadata type 1 | 109// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 110// | metadata type 2 | 111// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 112// .... 113// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 114// | metadata type n | 115// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 116// 117// @param p Parcel that should start with a filter. 118// @param[out] filter On exit contains the list of metadata type to be 119// filtered. 120// @param[out] status On exit contains the status code to be returned. 121// @return true if the parcel starts with a valid filter. 122bool unmarshallFilter(const Parcel& p, 123 Metadata::Filter *filter, 124 status_t *status) 125{ 126 int32_t val; 127 if (p.readInt32(&val) != OK) 128 { 129 ALOGE("Failed to read filter's length"); 130 *status = NOT_ENOUGH_DATA; 131 return false; 132 } 133 134 if( val > kMaxFilterSize || val < 0) 135 { 136 ALOGE("Invalid filter len %d", val); 137 *status = BAD_VALUE; 138 return false; 139 } 140 141 const size_t num = val; 142 143 filter->clear(); 144 filter->setCapacity(num); 145 146 size_t size = num * sizeof(Metadata::Type); 147 148 149 if (p.dataAvail() < size) 150 { 151 ALOGE("Filter too short expected %zu but got %zu", size, p.dataAvail()); 152 *status = NOT_ENOUGH_DATA; 153 return false; 154 } 155 156 const Metadata::Type *data = 157 static_cast<const Metadata::Type*>(p.readInplace(size)); 158 159 if (NULL == data) 160 { 161 ALOGE("Filter had no data"); 162 *status = BAD_VALUE; 163 return false; 164 } 165 166 // TODO: The stl impl of vector would be more efficient here 167 // because it degenerates into a memcpy on pod types. Try to 168 // replace later or use stl::set. 169 for (size_t i = 0; i < num; ++i) 170 { 171 filter->add(*data); 172 ++data; 173 } 174 *status = OK; 175 return true; 176} 177 178// @param filter Of metadata type. 179// @param val To be searched. 180// @return true if a match was found. 181bool findMetadata(const Metadata::Filter& filter, const int32_t val) 182{ 183 // Deal with empty and ANY right away 184 if (filter.isEmpty()) return false; 185 if (filter[0] == Metadata::kAny) return true; 186 187 return filter.indexOf(val) >= 0; 188} 189 190} // anonymous namespace 191 192 193namespace { 194using android::Parcel; 195using android::String16; 196 197// marshalling tag indicating flattened utf16 tags 198// keep in sync with frameworks/base/media/java/android/media/AudioAttributes.java 199const int32_t kAudioAttributesMarshallTagFlattenTags = 1; 200 201// Audio attributes format in a parcel: 202// 203// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 204// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 205// | usage | 206// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 207// | content_type | 208// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 209// | source | 210// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 211// | flags | 212// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 213// | kAudioAttributesMarshallTagFlattenTags | // ignore tags if not found 214// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 215// | flattened tags in UTF16 | 216// | ... | 217// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 218// 219// @param p Parcel that contains audio attributes. 220// @param[out] attributes On exit points to an initialized audio_attributes_t structure 221// @param[out] status On exit contains the status code to be returned. 222void unmarshallAudioAttributes(const Parcel& parcel, audio_attributes_t *attributes) 223{ 224 attributes->usage = (audio_usage_t) parcel.readInt32(); 225 attributes->content_type = (audio_content_type_t) parcel.readInt32(); 226 attributes->source = (audio_source_t) parcel.readInt32(); 227 attributes->flags = (audio_flags_mask_t) parcel.readInt32(); 228 const bool hasFlattenedTag = (parcel.readInt32() == kAudioAttributesMarshallTagFlattenTags); 229 if (hasFlattenedTag) { 230 // the tags are UTF16, convert to UTF8 231 String16 tags = parcel.readString16(); 232 ssize_t realTagSize = utf16_to_utf8_length(tags.string(), tags.size()); 233 if (realTagSize <= 0) { 234 strcpy(attributes->tags, ""); 235 } else { 236 // copy the flattened string into the attributes as the destination for the conversion: 237 // copying array size -1, array for tags was calloc'd, no need to NULL-terminate it 238 size_t tagSize = realTagSize > AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 ? 239 AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 : realTagSize; 240 utf16_to_utf8(tags.string(), tagSize, attributes->tags, 241 sizeof(attributes->tags) / sizeof(attributes->tags[0])); 242 } 243 } else { 244 ALOGE("unmarshallAudioAttributes() received unflattened tags, ignoring tag values"); 245 strcpy(attributes->tags, ""); 246 } 247} 248} // anonymous namespace 249 250 251namespace android { 252 253extern ALooperRoster gLooperRoster; 254 255 256static bool checkPermission(const char* permissionString) { 257 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 258 bool ok = checkCallingPermission(String16(permissionString)); 259 if (!ok) ALOGE("Request requires %s", permissionString); 260 return ok; 261} 262 263// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround 264/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4; 265/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false; 266 267void MediaPlayerService::instantiate() { 268 defaultServiceManager()->addService( 269 String16("media.player"), new MediaPlayerService()); 270} 271 272MediaPlayerService::MediaPlayerService() 273{ 274 ALOGV("MediaPlayerService created"); 275 mNextConnId = 1; 276 277 mBatteryAudio.refCount = 0; 278 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 279 mBatteryAudio.deviceOn[i] = 0; 280 mBatteryAudio.lastTime[i] = 0; 281 mBatteryAudio.totalTime[i] = 0; 282 } 283 // speaker is on by default 284 mBatteryAudio.deviceOn[SPEAKER] = 1; 285 286 // reset battery stats 287 // if the mediaserver has crashed, battery stats could be left 288 // in bad state, reset the state upon service start. 289 BatteryNotifier::getInstance().noteResetVideo(); 290 291 MediaPlayerFactory::registerBuiltinFactories(); 292} 293 294MediaPlayerService::~MediaPlayerService() 295{ 296 ALOGV("MediaPlayerService destroyed"); 297} 298 299sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(const String16 &opPackageName) 300{ 301 pid_t pid = IPCThreadState::self()->getCallingPid(); 302 sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid, opPackageName); 303 wp<MediaRecorderClient> w = recorder; 304 Mutex::Autolock lock(mLock); 305 mMediaRecorderClients.add(w); 306 ALOGV("Create new media recorder client from pid %d", pid); 307 return recorder; 308} 309 310void MediaPlayerService::removeMediaRecorderClient(const wp<MediaRecorderClient>& client) 311{ 312 Mutex::Autolock lock(mLock); 313 mMediaRecorderClients.remove(client); 314 ALOGV("Delete media recorder client"); 315} 316 317sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever() 318{ 319 pid_t pid = IPCThreadState::self()->getCallingPid(); 320 sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid); 321 ALOGV("Create new media retriever from pid %d", pid); 322 return retriever; 323} 324 325sp<IMediaPlayer> MediaPlayerService::create(const sp<IMediaPlayerClient>& client, 326 audio_session_t audioSessionId) 327{ 328 pid_t pid = IPCThreadState::self()->getCallingPid(); 329 int32_t connId = android_atomic_inc(&mNextConnId); 330 331 sp<Client> c = new Client( 332 this, pid, connId, client, audioSessionId, 333 IPCThreadState::self()->getCallingUid()); 334 335 ALOGV("Create new client(%d) from pid %d, uid %d, ", connId, pid, 336 IPCThreadState::self()->getCallingUid()); 337 338 wp<Client> w = c; 339 { 340 Mutex::Autolock lock(mLock); 341 mClients.add(w); 342 } 343 return c; 344} 345 346sp<IMediaCodecList> MediaPlayerService::getCodecList() const { 347 return MediaCodecList::getLocalInstance(); 348} 349 350sp<IOMX> MediaPlayerService::getOMX() { 351 ALOGI("MediaPlayerService::getOMX"); 352 Mutex::Autolock autoLock(mLock); 353 354 if (mOMX.get() == NULL) { 355 mOMX = new OMX; 356 } 357 358 return mOMX; 359} 360 361sp<IHDCP> MediaPlayerService::makeHDCP(bool createEncryptionModule) { 362 return new HDCP(createEncryptionModule); 363} 364 365sp<IRemoteDisplay> MediaPlayerService::listenForRemoteDisplay( 366 const String16 &opPackageName, 367 const sp<IRemoteDisplayClient>& client, const String8& iface) { 368 if (!checkPermission("android.permission.CONTROL_WIFI_DISPLAY")) { 369 return NULL; 370 } 371 372 return new RemoteDisplay(opPackageName, client, iface.string()); 373} 374 375status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const 376{ 377 const size_t SIZE = 256; 378 char buffer[SIZE]; 379 String8 result; 380 381 result.append(" AudioOutput\n"); 382 snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", 383 mStreamType, mLeftVolume, mRightVolume); 384 result.append(buffer); 385 snprintf(buffer, 255, " msec per frame(%f), latency (%d)\n", 386 mMsecsPerFrame, (mTrack != 0) ? mTrack->latency() : -1); 387 result.append(buffer); 388 snprintf(buffer, 255, " aux effect id(%d), send level (%f)\n", 389 mAuxEffectId, mSendLevel); 390 result.append(buffer); 391 392 ::write(fd, result.string(), result.size()); 393 if (mTrack != 0) { 394 mTrack->dump(fd, args); 395 } 396 return NO_ERROR; 397} 398 399status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) 400{ 401 const size_t SIZE = 256; 402 char buffer[SIZE]; 403 String8 result; 404 result.append(" Client\n"); 405 snprintf(buffer, 255, " pid(%d), connId(%d), status(%d), looping(%s)\n", 406 mPid, mConnId, mStatus, mLoop?"true": "false"); 407 result.append(buffer); 408 write(fd, result.string(), result.size()); 409 if (mPlayer != NULL) { 410 mPlayer->dump(fd, args); 411 } 412 if (mAudioOutput != 0) { 413 mAudioOutput->dump(fd, args); 414 } 415 write(fd, "\n", 1); 416 return NO_ERROR; 417} 418 419/** 420 * The only arguments this understands right now are -c, -von and -voff, 421 * which are parsed by ALooperRoster::dump() 422 */ 423status_t MediaPlayerService::dump(int fd, const Vector<String16>& args) 424{ 425 const size_t SIZE = 256; 426 char buffer[SIZE]; 427 String8 result; 428 SortedVector< sp<Client> > clients; //to serialise the mutex unlock & client destruction. 429 SortedVector< sp<MediaRecorderClient> > mediaRecorderClients; 430 431 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 432 snprintf(buffer, SIZE, "Permission Denial: " 433 "can't dump MediaPlayerService from pid=%d, uid=%d\n", 434 IPCThreadState::self()->getCallingPid(), 435 IPCThreadState::self()->getCallingUid()); 436 result.append(buffer); 437 } else { 438 Mutex::Autolock lock(mLock); 439 for (int i = 0, n = mClients.size(); i < n; ++i) { 440 sp<Client> c = mClients[i].promote(); 441 if (c != 0) c->dump(fd, args); 442 clients.add(c); 443 } 444 if (mMediaRecorderClients.size() == 0) { 445 result.append(" No media recorder client\n\n"); 446 } else { 447 for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) { 448 sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote(); 449 if (c != 0) { 450 snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n", c->mPid); 451 result.append(buffer); 452 write(fd, result.string(), result.size()); 453 result = "\n"; 454 c->dump(fd, args); 455 mediaRecorderClients.add(c); 456 } 457 } 458 } 459 460 result.append(" Files opened and/or mapped:\n"); 461 snprintf(buffer, SIZE, "/proc/%d/maps", getpid()); 462 FILE *f = fopen(buffer, "r"); 463 if (f) { 464 while (!feof(f)) { 465 fgets(buffer, SIZE, f); 466 if (strstr(buffer, " /storage/") || 467 strstr(buffer, " /system/sounds/") || 468 strstr(buffer, " /data/") || 469 strstr(buffer, " /system/media/")) { 470 result.append(" "); 471 result.append(buffer); 472 } 473 } 474 fclose(f); 475 } else { 476 result.append("couldn't open "); 477 result.append(buffer); 478 result.append("\n"); 479 } 480 481 snprintf(buffer, SIZE, "/proc/%d/fd", getpid()); 482 DIR *d = opendir(buffer); 483 if (d) { 484 struct dirent *ent; 485 while((ent = readdir(d)) != NULL) { 486 if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) { 487 snprintf(buffer, SIZE, "/proc/%d/fd/%s", getpid(), ent->d_name); 488 struct stat s; 489 if (lstat(buffer, &s) == 0) { 490 if ((s.st_mode & S_IFMT) == S_IFLNK) { 491 char linkto[256]; 492 int len = readlink(buffer, linkto, sizeof(linkto)); 493 if(len > 0) { 494 if(len > 255) { 495 linkto[252] = '.'; 496 linkto[253] = '.'; 497 linkto[254] = '.'; 498 linkto[255] = 0; 499 } else { 500 linkto[len] = 0; 501 } 502 if (strstr(linkto, "/storage/") == linkto || 503 strstr(linkto, "/system/sounds/") == linkto || 504 strstr(linkto, "/data/") == linkto || 505 strstr(linkto, "/system/media/") == linkto) { 506 result.append(" "); 507 result.append(buffer); 508 result.append(" -> "); 509 result.append(linkto); 510 result.append("\n"); 511 } 512 } 513 } else { 514 result.append(" unexpected type for "); 515 result.append(buffer); 516 result.append("\n"); 517 } 518 } 519 } 520 } 521 closedir(d); 522 } else { 523 result.append("couldn't open "); 524 result.append(buffer); 525 result.append("\n"); 526 } 527 528 gLooperRoster.dump(fd, args); 529 530 bool dumpMem = false; 531 bool unreachableMemory = false; 532 for (size_t i = 0; i < args.size(); i++) { 533 if (args[i] == String16("-m")) { 534 dumpMem = true; 535 } else if (args[i] == String16("--unreachable")) { 536 unreachableMemory = true; 537 } 538 } 539 if (dumpMem) { 540 result.append("\nDumping memory:\n"); 541 std::string s = dumpMemoryAddresses(100 /* limit */); 542 result.append(s.c_str(), s.size()); 543 } 544 if (unreachableMemory) { 545 result.append("\nDumping unreachable memory:\n"); 546 // TODO - should limit be an argument parameter? 547 std::string s = GetUnreachableMemoryString(true /* contents */, 10000 /* limit */); 548 result.append(s.c_str(), s.size()); 549 } 550 } 551 write(fd, result.string(), result.size()); 552 return NO_ERROR; 553} 554 555void MediaPlayerService::removeClient(const wp<Client>& client) 556{ 557 Mutex::Autolock lock(mLock); 558 mClients.remove(client); 559} 560 561MediaPlayerService::Client::Client( 562 const sp<MediaPlayerService>& service, pid_t pid, 563 int32_t connId, const sp<IMediaPlayerClient>& client, 564 audio_session_t audioSessionId, uid_t uid) 565{ 566 ALOGV("Client(%d) constructor", connId); 567 mPid = pid; 568 mConnId = connId; 569 mService = service; 570 mClient = client; 571 mLoop = false; 572 mStatus = NO_INIT; 573 mAudioSessionId = audioSessionId; 574 mUID = uid; 575 mRetransmitEndpointValid = false; 576 mAudioAttributes = NULL; 577 578#if CALLBACK_ANTAGONIZER 579 ALOGD("create Antagonizer"); 580 mAntagonizer = new Antagonizer(notify, this); 581#endif 582} 583 584MediaPlayerService::Client::~Client() 585{ 586 ALOGV("Client(%d) destructor pid = %d", mConnId, mPid); 587 mAudioOutput.clear(); 588 wp<Client> client(this); 589 disconnect(); 590 mService->removeClient(client); 591 if (mAudioAttributes != NULL) { 592 free(mAudioAttributes); 593 } 594} 595 596void MediaPlayerService::Client::disconnect() 597{ 598 ALOGV("disconnect(%d) from pid %d", mConnId, mPid); 599 // grab local reference and clear main reference to prevent future 600 // access to object 601 sp<MediaPlayerBase> p; 602 { 603 Mutex::Autolock l(mLock); 604 p = mPlayer; 605 mClient.clear(); 606 } 607 608 mPlayer.clear(); 609 610 // clear the notification to prevent callbacks to dead client 611 // and reset the player. We assume the player will serialize 612 // access to itself if necessary. 613 if (p != 0) { 614 p->setNotifyCallback(0, 0); 615#if CALLBACK_ANTAGONIZER 616 ALOGD("kill Antagonizer"); 617 mAntagonizer->kill(); 618#endif 619 p->reset(); 620 } 621 622 disconnectNativeWindow(); 623 624 IPCThreadState::self()->flushCommands(); 625} 626 627sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) 628{ 629 // determine if we have the right player type 630 sp<MediaPlayerBase> p = mPlayer; 631 if ((p != NULL) && (p->playerType() != playerType)) { 632 ALOGV("delete player"); 633 p.clear(); 634 } 635 if (p == NULL) { 636 p = MediaPlayerFactory::createPlayer(playerType, this, notify, mPid); 637 } 638 639 if (p != NULL) { 640 p->setUID(mUID); 641 } 642 643 return p; 644} 645 646MediaPlayerService::Client::ServiceDeathNotifier::ServiceDeathNotifier( 647 const sp<IBinder>& service, 648 const sp<MediaPlayerBase>& listener, 649 int which) { 650 mService = service; 651 mListener = listener; 652 mWhich = which; 653} 654 655MediaPlayerService::Client::ServiceDeathNotifier::~ServiceDeathNotifier() { 656 mService->unlinkToDeath(this); 657} 658 659void MediaPlayerService::Client::ServiceDeathNotifier::binderDied(const wp<IBinder>& /*who*/) { 660 sp<MediaPlayerBase> listener = mListener.promote(); 661 if (listener != NULL) { 662 listener->sendEvent(MEDIA_ERROR, MEDIA_ERROR_SERVER_DIED, mWhich); 663 } else { 664 ALOGW("listener for process %d death is gone", mWhich); 665 } 666} 667 668sp<MediaPlayerBase> MediaPlayerService::Client::setDataSource_pre( 669 player_type playerType) 670{ 671 ALOGV("player type = %d", playerType); 672 673 // create the right type of player 674 sp<MediaPlayerBase> p = createPlayer(playerType); 675 if (p == NULL) { 676 return p; 677 } 678 679 sp<IServiceManager> sm = defaultServiceManager(); 680 sp<IBinder> binder = sm->getService(String16("media.extractor")); 681 mExtractorDeathListener = new ServiceDeathNotifier(binder, p, MEDIAEXTRACTOR_PROCESS_DEATH); 682 binder->linkToDeath(mExtractorDeathListener); 683 684 binder = sm->getService(String16("media.codec")); 685 mCodecDeathListener = new ServiceDeathNotifier(binder, p, MEDIACODEC_PROCESS_DEATH); 686 binder->linkToDeath(mCodecDeathListener); 687 688 if (!p->hardwareOutput()) { 689 Mutex::Autolock l(mLock); 690 mAudioOutput = new AudioOutput(mAudioSessionId, IPCThreadState::self()->getCallingUid(), 691 mPid, mAudioAttributes); 692 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 693 } 694 695 return p; 696} 697 698void MediaPlayerService::Client::setDataSource_post( 699 const sp<MediaPlayerBase>& p, 700 status_t status) 701{ 702 ALOGV(" setDataSource"); 703 mStatus = status; 704 if (mStatus != OK) { 705 ALOGE(" error: %d", mStatus); 706 return; 707 } 708 709 // Set the re-transmission endpoint if one was chosen. 710 if (mRetransmitEndpointValid) { 711 mStatus = p->setRetransmitEndpoint(&mRetransmitEndpoint); 712 if (mStatus != NO_ERROR) { 713 ALOGE("setRetransmitEndpoint error: %d", mStatus); 714 } 715 } 716 717 if (mStatus == OK) { 718 mPlayer = p; 719 } 720} 721 722status_t MediaPlayerService::Client::setDataSource( 723 const sp<IMediaHTTPService> &httpService, 724 const char *url, 725 const KeyedVector<String8, String8> *headers) 726{ 727 ALOGV("setDataSource(%s)", url); 728 if (url == NULL) 729 return UNKNOWN_ERROR; 730 731 if ((strncmp(url, "http://", 7) == 0) || 732 (strncmp(url, "https://", 8) == 0) || 733 (strncmp(url, "rtsp://", 7) == 0)) { 734 if (!checkPermission("android.permission.INTERNET")) { 735 return PERMISSION_DENIED; 736 } 737 } 738 739 if (strncmp(url, "content://", 10) == 0) { 740 // get a filedescriptor for the content Uri and 741 // pass it to the setDataSource(fd) method 742 743 String16 url16(url); 744 int fd = android::openContentProviderFile(url16); 745 if (fd < 0) 746 { 747 ALOGE("Couldn't open fd for %s", url); 748 return UNKNOWN_ERROR; 749 } 750 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 751 close(fd); 752 return mStatus; 753 } else { 754 player_type playerType = MediaPlayerFactory::getPlayerType(this, url); 755 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 756 if (p == NULL) { 757 return NO_INIT; 758 } 759 760 setDataSource_post(p, p->setDataSource(httpService, url, headers)); 761 return mStatus; 762 } 763} 764 765status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 766{ 767 ALOGV("setDataSource fd=%d (%s), offset=%lld, length=%lld", 768 fd, nameForFd(fd).c_str(), (long long) offset, (long long) length); 769 struct stat sb; 770 int ret = fstat(fd, &sb); 771 if (ret != 0) { 772 ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 773 return UNKNOWN_ERROR; 774 } 775 776 ALOGV("st_dev = %llu", static_cast<unsigned long long>(sb.st_dev)); 777 ALOGV("st_mode = %u", sb.st_mode); 778 ALOGV("st_uid = %lu", static_cast<unsigned long>(sb.st_uid)); 779 ALOGV("st_gid = %lu", static_cast<unsigned long>(sb.st_gid)); 780 ALOGV("st_size = %llu", static_cast<unsigned long long>(sb.st_size)); 781 782 if (offset >= sb.st_size) { 783 ALOGE("offset error"); 784 return UNKNOWN_ERROR; 785 } 786 if (offset + length > sb.st_size) { 787 length = sb.st_size - offset; 788 ALOGV("calculated length = %lld", (long long)length); 789 } 790 791 player_type playerType = MediaPlayerFactory::getPlayerType(this, 792 fd, 793 offset, 794 length); 795 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 796 if (p == NULL) { 797 return NO_INIT; 798 } 799 800 // now set data source 801 setDataSource_post(p, p->setDataSource(fd, offset, length)); 802 return mStatus; 803} 804 805status_t MediaPlayerService::Client::setDataSource( 806 const sp<IStreamSource> &source) { 807 // create the right type of player 808 player_type playerType = MediaPlayerFactory::getPlayerType(this, source); 809 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 810 if (p == NULL) { 811 return NO_INIT; 812 } 813 814 // now set data source 815 setDataSource_post(p, p->setDataSource(source)); 816 return mStatus; 817} 818 819status_t MediaPlayerService::Client::setDataSource( 820 const sp<IDataSource> &source) { 821 sp<DataSource> dataSource = DataSource::CreateFromIDataSource(source); 822 player_type playerType = MediaPlayerFactory::getPlayerType(this, dataSource); 823 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 824 if (p == NULL) { 825 return NO_INIT; 826 } 827 // now set data source 828 setDataSource_post(p, p->setDataSource(dataSource)); 829 return mStatus; 830} 831 832void MediaPlayerService::Client::disconnectNativeWindow() { 833 if (mConnectedWindow != NULL) { 834 status_t err = native_window_api_disconnect(mConnectedWindow.get(), 835 NATIVE_WINDOW_API_MEDIA); 836 837 if (err != OK) { 838 ALOGW("native_window_api_disconnect returned an error: %s (%d)", 839 strerror(-err), err); 840 } 841 } 842 mConnectedWindow.clear(); 843} 844 845status_t MediaPlayerService::Client::setVideoSurfaceTexture( 846 const sp<IGraphicBufferProducer>& bufferProducer) 847{ 848 ALOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, bufferProducer.get()); 849 sp<MediaPlayerBase> p = getPlayer(); 850 if (p == 0) return UNKNOWN_ERROR; 851 852 sp<IBinder> binder(IInterface::asBinder(bufferProducer)); 853 if (mConnectedWindowBinder == binder) { 854 return OK; 855 } 856 857 sp<ANativeWindow> anw; 858 if (bufferProducer != NULL) { 859 anw = new Surface(bufferProducer, true /* controlledByApp */); 860 status_t err = native_window_api_connect(anw.get(), 861 NATIVE_WINDOW_API_MEDIA); 862 863 if (err != OK) { 864 ALOGE("setVideoSurfaceTexture failed: %d", err); 865 // Note that we must do the reset before disconnecting from the ANW. 866 // Otherwise queue/dequeue calls could be made on the disconnected 867 // ANW, which may result in errors. 868 reset(); 869 870 disconnectNativeWindow(); 871 872 return err; 873 } 874 } 875 876 // Note that we must set the player's new GraphicBufferProducer before 877 // disconnecting the old one. Otherwise queue/dequeue calls could be made 878 // on the disconnected ANW, which may result in errors. 879 status_t err = p->setVideoSurfaceTexture(bufferProducer); 880 881 disconnectNativeWindow(); 882 883 mConnectedWindow = anw; 884 885 if (err == OK) { 886 mConnectedWindowBinder = binder; 887 } else { 888 disconnectNativeWindow(); 889 } 890 891 return err; 892} 893 894status_t MediaPlayerService::Client::invoke(const Parcel& request, 895 Parcel *reply) 896{ 897 sp<MediaPlayerBase> p = getPlayer(); 898 if (p == NULL) return UNKNOWN_ERROR; 899 return p->invoke(request, reply); 900} 901 902// This call doesn't need to access the native player. 903status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 904{ 905 status_t status; 906 media::Metadata::Filter allow, drop; 907 908 if (unmarshallFilter(filter, &allow, &status) && 909 unmarshallFilter(filter, &drop, &status)) { 910 Mutex::Autolock lock(mLock); 911 912 mMetadataAllow = allow; 913 mMetadataDrop = drop; 914 } 915 return status; 916} 917 918status_t MediaPlayerService::Client::getMetadata( 919 bool update_only, bool /*apply_filter*/, Parcel *reply) 920{ 921 sp<MediaPlayerBase> player = getPlayer(); 922 if (player == 0) return UNKNOWN_ERROR; 923 924 status_t status; 925 // Placeholder for the return code, updated by the caller. 926 reply->writeInt32(-1); 927 928 media::Metadata::Filter ids; 929 930 // We don't block notifications while we fetch the data. We clear 931 // mMetadataUpdated first so we don't lose notifications happening 932 // during the rest of this call. 933 { 934 Mutex::Autolock lock(mLock); 935 if (update_only) { 936 ids = mMetadataUpdated; 937 } 938 mMetadataUpdated.clear(); 939 } 940 941 media::Metadata metadata(reply); 942 943 metadata.appendHeader(); 944 status = player->getMetadata(ids, reply); 945 946 if (status != OK) { 947 metadata.resetParcel(); 948 ALOGE("getMetadata failed %d", status); 949 return status; 950 } 951 952 // FIXME: Implement filtering on the result. Not critical since 953 // filtering takes place on the update notifications already. This 954 // would be when all the metadata are fetch and a filter is set. 955 956 // Everything is fine, update the metadata length. 957 metadata.updateLength(); 958 return OK; 959} 960 961status_t MediaPlayerService::Client::prepareAsync() 962{ 963 ALOGV("[%d] prepareAsync", mConnId); 964 sp<MediaPlayerBase> p = getPlayer(); 965 if (p == 0) return UNKNOWN_ERROR; 966 status_t ret = p->prepareAsync(); 967#if CALLBACK_ANTAGONIZER 968 ALOGD("start Antagonizer"); 969 if (ret == NO_ERROR) mAntagonizer->start(); 970#endif 971 return ret; 972} 973 974status_t MediaPlayerService::Client::start() 975{ 976 ALOGV("[%d] start", mConnId); 977 sp<MediaPlayerBase> p = getPlayer(); 978 if (p == 0) return UNKNOWN_ERROR; 979 p->setLooping(mLoop); 980 return p->start(); 981} 982 983status_t MediaPlayerService::Client::stop() 984{ 985 ALOGV("[%d] stop", mConnId); 986 sp<MediaPlayerBase> p = getPlayer(); 987 if (p == 0) return UNKNOWN_ERROR; 988 return p->stop(); 989} 990 991status_t MediaPlayerService::Client::pause() 992{ 993 ALOGV("[%d] pause", mConnId); 994 sp<MediaPlayerBase> p = getPlayer(); 995 if (p == 0) return UNKNOWN_ERROR; 996 return p->pause(); 997} 998 999status_t MediaPlayerService::Client::isPlaying(bool* state) 1000{ 1001 *state = false; 1002 sp<MediaPlayerBase> p = getPlayer(); 1003 if (p == 0) return UNKNOWN_ERROR; 1004 *state = p->isPlaying(); 1005 ALOGV("[%d] isPlaying: %d", mConnId, *state); 1006 return NO_ERROR; 1007} 1008 1009status_t MediaPlayerService::Client::setPlaybackSettings(const AudioPlaybackRate& rate) 1010{ 1011 ALOGV("[%d] setPlaybackSettings(%f, %f, %d, %d)", 1012 mConnId, rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode); 1013 sp<MediaPlayerBase> p = getPlayer(); 1014 if (p == 0) return UNKNOWN_ERROR; 1015 return p->setPlaybackSettings(rate); 1016} 1017 1018status_t MediaPlayerService::Client::getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */) 1019{ 1020 sp<MediaPlayerBase> p = getPlayer(); 1021 if (p == 0) return UNKNOWN_ERROR; 1022 status_t ret = p->getPlaybackSettings(rate); 1023 if (ret == NO_ERROR) { 1024 ALOGV("[%d] getPlaybackSettings(%f, %f, %d, %d)", 1025 mConnId, rate->mSpeed, rate->mPitch, rate->mFallbackMode, rate->mStretchMode); 1026 } else { 1027 ALOGV("[%d] getPlaybackSettings returned %d", mConnId, ret); 1028 } 1029 return ret; 1030} 1031 1032status_t MediaPlayerService::Client::setSyncSettings( 1033 const AVSyncSettings& sync, float videoFpsHint) 1034{ 1035 ALOGV("[%d] setSyncSettings(%u, %u, %f, %f)", 1036 mConnId, sync.mSource, sync.mAudioAdjustMode, sync.mTolerance, videoFpsHint); 1037 sp<MediaPlayerBase> p = getPlayer(); 1038 if (p == 0) return UNKNOWN_ERROR; 1039 return p->setSyncSettings(sync, videoFpsHint); 1040} 1041 1042status_t MediaPlayerService::Client::getSyncSettings( 1043 AVSyncSettings* sync /* nonnull */, float* videoFps /* nonnull */) 1044{ 1045 sp<MediaPlayerBase> p = getPlayer(); 1046 if (p == 0) return UNKNOWN_ERROR; 1047 status_t ret = p->getSyncSettings(sync, videoFps); 1048 if (ret == NO_ERROR) { 1049 ALOGV("[%d] getSyncSettings(%u, %u, %f, %f)", 1050 mConnId, sync->mSource, sync->mAudioAdjustMode, sync->mTolerance, *videoFps); 1051 } else { 1052 ALOGV("[%d] getSyncSettings returned %d", mConnId, ret); 1053 } 1054 return ret; 1055} 1056 1057status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 1058{ 1059 ALOGV("getCurrentPosition"); 1060 sp<MediaPlayerBase> p = getPlayer(); 1061 if (p == 0) return UNKNOWN_ERROR; 1062 status_t ret = p->getCurrentPosition(msec); 1063 if (ret == NO_ERROR) { 1064 ALOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 1065 } else { 1066 ALOGE("getCurrentPosition returned %d", ret); 1067 } 1068 return ret; 1069} 1070 1071status_t MediaPlayerService::Client::getDuration(int *msec) 1072{ 1073 ALOGV("getDuration"); 1074 sp<MediaPlayerBase> p = getPlayer(); 1075 if (p == 0) return UNKNOWN_ERROR; 1076 status_t ret = p->getDuration(msec); 1077 if (ret == NO_ERROR) { 1078 ALOGV("[%d] getDuration = %d", mConnId, *msec); 1079 } else { 1080 ALOGE("getDuration returned %d", ret); 1081 } 1082 return ret; 1083} 1084 1085status_t MediaPlayerService::Client::setNextPlayer(const sp<IMediaPlayer>& player) { 1086 ALOGV("setNextPlayer"); 1087 Mutex::Autolock l(mLock); 1088 sp<Client> c = static_cast<Client*>(player.get()); 1089 mNextClient = c; 1090 1091 if (c != NULL) { 1092 if (mAudioOutput != NULL) { 1093 mAudioOutput->setNextOutput(c->mAudioOutput); 1094 } else if ((mPlayer != NULL) && !mPlayer->hardwareOutput()) { 1095 ALOGE("no current audio output"); 1096 } 1097 1098 if ((mPlayer != NULL) && (mNextClient->getPlayer() != NULL)) { 1099 mPlayer->setNextPlayer(mNextClient->getPlayer()); 1100 } 1101 } 1102 1103 return OK; 1104} 1105 1106status_t MediaPlayerService::Client::seekTo(int msec) 1107{ 1108 ALOGV("[%d] seekTo(%d)", mConnId, msec); 1109 sp<MediaPlayerBase> p = getPlayer(); 1110 if (p == 0) return UNKNOWN_ERROR; 1111 return p->seekTo(msec); 1112} 1113 1114status_t MediaPlayerService::Client::reset() 1115{ 1116 ALOGV("[%d] reset", mConnId); 1117 mRetransmitEndpointValid = false; 1118 sp<MediaPlayerBase> p = getPlayer(); 1119 if (p == 0) return UNKNOWN_ERROR; 1120 return p->reset(); 1121} 1122 1123status_t MediaPlayerService::Client::setAudioStreamType(audio_stream_type_t type) 1124{ 1125 ALOGV("[%d] setAudioStreamType(%d)", mConnId, type); 1126 // TODO: for hardware output, call player instead 1127 Mutex::Autolock l(mLock); 1128 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 1129 return NO_ERROR; 1130} 1131 1132status_t MediaPlayerService::Client::setAudioAttributes_l(const Parcel &parcel) 1133{ 1134 if (mAudioAttributes != NULL) { free(mAudioAttributes); } 1135 mAudioAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1136 if (mAudioAttributes == NULL) { 1137 return NO_MEMORY; 1138 } 1139 unmarshallAudioAttributes(parcel, mAudioAttributes); 1140 1141 ALOGV("setAudioAttributes_l() usage=%d content=%d flags=0x%x tags=%s", 1142 mAudioAttributes->usage, mAudioAttributes->content_type, mAudioAttributes->flags, 1143 mAudioAttributes->tags); 1144 1145 if (mAudioOutput != 0) { 1146 mAudioOutput->setAudioAttributes(mAudioAttributes); 1147 } 1148 return NO_ERROR; 1149} 1150 1151status_t MediaPlayerService::Client::setLooping(int loop) 1152{ 1153 ALOGV("[%d] setLooping(%d)", mConnId, loop); 1154 mLoop = loop; 1155 sp<MediaPlayerBase> p = getPlayer(); 1156 if (p != 0) return p->setLooping(loop); 1157 return NO_ERROR; 1158} 1159 1160status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1161{ 1162 ALOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1163 1164 // for hardware output, call player instead 1165 sp<MediaPlayerBase> p = getPlayer(); 1166 { 1167 Mutex::Autolock l(mLock); 1168 if (p != 0 && p->hardwareOutput()) { 1169 MediaPlayerHWInterface* hwp = 1170 reinterpret_cast<MediaPlayerHWInterface*>(p.get()); 1171 return hwp->setVolume(leftVolume, rightVolume); 1172 } else { 1173 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1174 return NO_ERROR; 1175 } 1176 } 1177 1178 return NO_ERROR; 1179} 1180 1181status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level) 1182{ 1183 ALOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level); 1184 Mutex::Autolock l(mLock); 1185 if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level); 1186 return NO_ERROR; 1187} 1188 1189status_t MediaPlayerService::Client::attachAuxEffect(int effectId) 1190{ 1191 ALOGV("[%d] attachAuxEffect(%d)", mConnId, effectId); 1192 Mutex::Autolock l(mLock); 1193 if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId); 1194 return NO_ERROR; 1195} 1196 1197status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) { 1198 ALOGV("[%d] setParameter(%d)", mConnId, key); 1199 switch (key) { 1200 case KEY_PARAMETER_AUDIO_ATTRIBUTES: 1201 { 1202 Mutex::Autolock l(mLock); 1203 return setAudioAttributes_l(request); 1204 } 1205 default: 1206 sp<MediaPlayerBase> p = getPlayer(); 1207 if (p == 0) { return UNKNOWN_ERROR; } 1208 return p->setParameter(key, request); 1209 } 1210} 1211 1212status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) { 1213 ALOGV("[%d] getParameter(%d)", mConnId, key); 1214 sp<MediaPlayerBase> p = getPlayer(); 1215 if (p == 0) return UNKNOWN_ERROR; 1216 return p->getParameter(key, reply); 1217} 1218 1219status_t MediaPlayerService::Client::setRetransmitEndpoint( 1220 const struct sockaddr_in* endpoint) { 1221 1222 if (NULL != endpoint) { 1223 uint32_t a = ntohl(endpoint->sin_addr.s_addr); 1224 uint16_t p = ntohs(endpoint->sin_port); 1225 ALOGV("[%d] setRetransmitEndpoint(%u.%u.%u.%u:%hu)", mConnId, 1226 (a >> 24), (a >> 16) & 0xFF, (a >> 8) & 0xFF, (a & 0xFF), p); 1227 } else { 1228 ALOGV("[%d] setRetransmitEndpoint = <none>", mConnId); 1229 } 1230 1231 sp<MediaPlayerBase> p = getPlayer(); 1232 1233 // Right now, the only valid time to set a retransmit endpoint is before 1234 // player selection has been made (since the presence or absence of a 1235 // retransmit endpoint is going to determine which player is selected during 1236 // setDataSource). 1237 if (p != 0) return INVALID_OPERATION; 1238 1239 if (NULL != endpoint) { 1240 mRetransmitEndpoint = *endpoint; 1241 mRetransmitEndpointValid = true; 1242 } else { 1243 mRetransmitEndpointValid = false; 1244 } 1245 1246 return NO_ERROR; 1247} 1248 1249status_t MediaPlayerService::Client::getRetransmitEndpoint( 1250 struct sockaddr_in* endpoint) 1251{ 1252 if (NULL == endpoint) 1253 return BAD_VALUE; 1254 1255 sp<MediaPlayerBase> p = getPlayer(); 1256 1257 if (p != NULL) 1258 return p->getRetransmitEndpoint(endpoint); 1259 1260 if (!mRetransmitEndpointValid) 1261 return NO_INIT; 1262 1263 *endpoint = mRetransmitEndpoint; 1264 1265 return NO_ERROR; 1266} 1267 1268void MediaPlayerService::Client::notify( 1269 void* cookie, int msg, int ext1, int ext2, const Parcel *obj) 1270{ 1271 Client* client = static_cast<Client*>(cookie); 1272 if (client == NULL) { 1273 return; 1274 } 1275 1276 sp<IMediaPlayerClient> c; 1277 { 1278 Mutex::Autolock l(client->mLock); 1279 c = client->mClient; 1280 if (msg == MEDIA_PLAYBACK_COMPLETE && client->mNextClient != NULL) { 1281 if (client->mAudioOutput != NULL) 1282 client->mAudioOutput->switchToNextOutput(); 1283 client->mNextClient->start(); 1284 if (client->mNextClient->mClient != NULL) { 1285 client->mNextClient->mClient->notify( 1286 MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj); 1287 } 1288 } 1289 } 1290 1291 if (MEDIA_INFO == msg && 1292 MEDIA_INFO_METADATA_UPDATE == ext1) { 1293 const media::Metadata::Type metadata_type = ext2; 1294 1295 if(client->shouldDropMetadata(metadata_type)) { 1296 return; 1297 } 1298 1299 // Update the list of metadata that have changed. getMetadata 1300 // also access mMetadataUpdated and clears it. 1301 client->addNewMetadataUpdate(metadata_type); 1302 } 1303 1304 if (c != NULL) { 1305 ALOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1306 c->notify(msg, ext1, ext2, obj); 1307 } 1308} 1309 1310 1311bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1312{ 1313 Mutex::Autolock lock(mLock); 1314 1315 if (findMetadata(mMetadataDrop, code)) { 1316 return true; 1317 } 1318 1319 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1320 return false; 1321 } else { 1322 return true; 1323 } 1324} 1325 1326 1327void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1328 Mutex::Autolock lock(mLock); 1329 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1330 mMetadataUpdated.add(metadata_type); 1331 } 1332} 1333 1334#if CALLBACK_ANTAGONIZER 1335const int Antagonizer::interval = 10000; // 10 msecs 1336 1337Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1338 mExit(false), mActive(false), mClient(client), mCb(cb) 1339{ 1340 createThread(callbackThread, this); 1341} 1342 1343void Antagonizer::kill() 1344{ 1345 Mutex::Autolock _l(mLock); 1346 mActive = false; 1347 mExit = true; 1348 mCondition.wait(mLock); 1349} 1350 1351int Antagonizer::callbackThread(void* user) 1352{ 1353 ALOGD("Antagonizer started"); 1354 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1355 while (!p->mExit) { 1356 if (p->mActive) { 1357 ALOGV("send event"); 1358 p->mCb(p->mClient, 0, 0, 0); 1359 } 1360 usleep(interval); 1361 } 1362 Mutex::Autolock _l(p->mLock); 1363 p->mCondition.signal(); 1364 ALOGD("Antagonizer stopped"); 1365 return 0; 1366} 1367#endif 1368 1369#undef LOG_TAG 1370#define LOG_TAG "AudioSink" 1371MediaPlayerService::AudioOutput::AudioOutput(audio_session_t sessionId, int uid, int pid, 1372 const audio_attributes_t* attr) 1373 : mCallback(NULL), 1374 mCallbackCookie(NULL), 1375 mCallbackData(NULL), 1376 mStreamType(AUDIO_STREAM_MUSIC), 1377 mLeftVolume(1.0), 1378 mRightVolume(1.0), 1379 mPlaybackRate(AUDIO_PLAYBACK_RATE_DEFAULT), 1380 mSampleRateHz(0), 1381 mMsecsPerFrame(0), 1382 mFrameSize(0), 1383 mSessionId(sessionId), 1384 mUid(uid), 1385 mPid(pid), 1386 mSendLevel(0.0), 1387 mAuxEffectId(0), 1388 mFlags(AUDIO_OUTPUT_FLAG_NONE) 1389{ 1390 ALOGV("AudioOutput(%d)", sessionId); 1391 if (attr != NULL) { 1392 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1393 if (mAttributes != NULL) { 1394 memcpy(mAttributes, attr, sizeof(audio_attributes_t)); 1395 mStreamType = audio_attributes_to_stream_type(attr); 1396 } 1397 } else { 1398 mAttributes = NULL; 1399 } 1400 1401 setMinBufferCount(); 1402} 1403 1404MediaPlayerService::AudioOutput::~AudioOutput() 1405{ 1406 close(); 1407 free(mAttributes); 1408 delete mCallbackData; 1409} 1410 1411//static 1412void MediaPlayerService::AudioOutput::setMinBufferCount() 1413{ 1414 char value[PROPERTY_VALUE_MAX]; 1415 if (property_get("ro.kernel.qemu", value, 0)) { 1416 mIsOnEmulator = true; 1417 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1418 } 1419} 1420 1421// static 1422bool MediaPlayerService::AudioOutput::isOnEmulator() 1423{ 1424 setMinBufferCount(); // benign race wrt other threads 1425 return mIsOnEmulator; 1426} 1427 1428// static 1429int MediaPlayerService::AudioOutput::getMinBufferCount() 1430{ 1431 setMinBufferCount(); // benign race wrt other threads 1432 return mMinBufferCount; 1433} 1434 1435ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1436{ 1437 Mutex::Autolock lock(mLock); 1438 if (mTrack == 0) return NO_INIT; 1439 return mTrack->frameCount() * mFrameSize; 1440} 1441 1442ssize_t MediaPlayerService::AudioOutput::frameCount() const 1443{ 1444 Mutex::Autolock lock(mLock); 1445 if (mTrack == 0) return NO_INIT; 1446 return mTrack->frameCount(); 1447} 1448 1449ssize_t MediaPlayerService::AudioOutput::channelCount() const 1450{ 1451 Mutex::Autolock lock(mLock); 1452 if (mTrack == 0) return NO_INIT; 1453 return mTrack->channelCount(); 1454} 1455 1456ssize_t MediaPlayerService::AudioOutput::frameSize() const 1457{ 1458 Mutex::Autolock lock(mLock); 1459 if (mTrack == 0) return NO_INIT; 1460 return mFrameSize; 1461} 1462 1463uint32_t MediaPlayerService::AudioOutput::latency () const 1464{ 1465 Mutex::Autolock lock(mLock); 1466 if (mTrack == 0) return 0; 1467 return mTrack->latency(); 1468} 1469 1470float MediaPlayerService::AudioOutput::msecsPerFrame() const 1471{ 1472 Mutex::Autolock lock(mLock); 1473 return mMsecsPerFrame; 1474} 1475 1476status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) const 1477{ 1478 Mutex::Autolock lock(mLock); 1479 if (mTrack == 0) return NO_INIT; 1480 return mTrack->getPosition(position); 1481} 1482 1483status_t MediaPlayerService::AudioOutput::getTimestamp(AudioTimestamp &ts) const 1484{ 1485 Mutex::Autolock lock(mLock); 1486 if (mTrack == 0) return NO_INIT; 1487 return mTrack->getTimestamp(ts); 1488} 1489 1490// TODO: Remove unnecessary calls to getPlayedOutDurationUs() 1491// as it acquires locks and may query the audio driver. 1492// 1493// Some calls could conceivably retrieve extrapolated data instead of 1494// accessing getTimestamp() or getPosition() every time a data buffer with 1495// a media time is received. 1496// 1497// Calculate duration of played samples if played at normal rate (i.e., 1.0). 1498int64_t MediaPlayerService::AudioOutput::getPlayedOutDurationUs(int64_t nowUs) const 1499{ 1500 Mutex::Autolock lock(mLock); 1501 if (mTrack == 0 || mSampleRateHz == 0) { 1502 return 0; 1503 } 1504 1505 uint32_t numFramesPlayed; 1506 int64_t numFramesPlayedAt; 1507 AudioTimestamp ts; 1508 static const int64_t kStaleTimestamp100ms = 100000; 1509 1510 status_t res = mTrack->getTimestamp(ts); 1511 if (res == OK) { // case 1: mixing audio tracks and offloaded tracks. 1512 numFramesPlayed = ts.mPosition; 1513 numFramesPlayedAt = ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000; 1514 const int64_t timestampAge = nowUs - numFramesPlayedAt; 1515 if (timestampAge > kStaleTimestamp100ms) { 1516 // This is an audio FIXME. 1517 // getTimestamp returns a timestamp which may come from audio mixing threads. 1518 // After pausing, the MixerThread may go idle, thus the mTime estimate may 1519 // become stale. Assuming that the MixerThread runs 20ms, with FastMixer at 5ms, 1520 // the max latency should be about 25ms with an average around 12ms (to be verified). 1521 // For safety we use 100ms. 1522 ALOGV("getTimestamp: returned stale timestamp nowUs(%lld) numFramesPlayedAt(%lld)", 1523 (long long)nowUs, (long long)numFramesPlayedAt); 1524 numFramesPlayedAt = nowUs - kStaleTimestamp100ms; 1525 } 1526 //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAt); 1527 } else if (res == WOULD_BLOCK) { // case 2: transitory state on start of a new track 1528 numFramesPlayed = 0; 1529 numFramesPlayedAt = nowUs; 1530 //ALOGD("getTimestamp: WOULD_BLOCK %d %lld", 1531 // numFramesPlayed, (long long)numFramesPlayedAt); 1532 } else { // case 3: transitory at new track or audio fast tracks. 1533 res = mTrack->getPosition(&numFramesPlayed); 1534 CHECK_EQ(res, (status_t)OK); 1535 numFramesPlayedAt = nowUs; 1536 numFramesPlayedAt += 1000LL * mTrack->latency() / 2; /* XXX */ 1537 //ALOGD("getPosition: %u %lld", numFramesPlayed, (long long)numFramesPlayedAt); 1538 } 1539 1540 // CHECK_EQ(numFramesPlayed & (1 << 31), 0); // can't be negative until 12.4 hrs, test 1541 // TODO: remove the (int32_t) casting below as it may overflow at 12.4 hours. 1542 int64_t durationUs = (int64_t)((int32_t)numFramesPlayed * 1000000LL / mSampleRateHz) 1543 + nowUs - numFramesPlayedAt; 1544 if (durationUs < 0) { 1545 // Occurs when numFramesPlayed position is very small and the following: 1546 // (1) In case 1, the time nowUs is computed before getTimestamp() is called and 1547 // numFramesPlayedAt is greater than nowUs by time more than numFramesPlayed. 1548 // (2) In case 3, using getPosition and adding mAudioSink->latency() to 1549 // numFramesPlayedAt, by a time amount greater than numFramesPlayed. 1550 // 1551 // Both of these are transitory conditions. 1552 ALOGV("getPlayedOutDurationUs: negative duration %lld set to zero", (long long)durationUs); 1553 durationUs = 0; 1554 } 1555 ALOGV("getPlayedOutDurationUs(%lld) nowUs(%lld) frames(%u) framesAt(%lld)", 1556 (long long)durationUs, (long long)nowUs, numFramesPlayed, (long long)numFramesPlayedAt); 1557 return durationUs; 1558} 1559 1560status_t MediaPlayerService::AudioOutput::getFramesWritten(uint32_t *frameswritten) const 1561{ 1562 Mutex::Autolock lock(mLock); 1563 if (mTrack == 0) return NO_INIT; 1564 ExtendedTimestamp ets; 1565 status_t status = mTrack->getTimestamp(&ets); 1566 if (status == OK || status == WOULD_BLOCK) { 1567 *frameswritten = (uint32_t)ets.mPosition[ExtendedTimestamp::LOCATION_CLIENT]; 1568 } 1569 return status; 1570} 1571 1572status_t MediaPlayerService::AudioOutput::setParameters(const String8& keyValuePairs) 1573{ 1574 Mutex::Autolock lock(mLock); 1575 if (mTrack == 0) return NO_INIT; 1576 return mTrack->setParameters(keyValuePairs); 1577} 1578 1579String8 MediaPlayerService::AudioOutput::getParameters(const String8& keys) 1580{ 1581 Mutex::Autolock lock(mLock); 1582 if (mTrack == 0) return String8::empty(); 1583 return mTrack->getParameters(keys); 1584} 1585 1586void MediaPlayerService::AudioOutput::setAudioAttributes(const audio_attributes_t * attributes) { 1587 Mutex::Autolock lock(mLock); 1588 if (attributes == NULL) { 1589 free(mAttributes); 1590 mAttributes = NULL; 1591 } else { 1592 if (mAttributes == NULL) { 1593 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1594 } 1595 memcpy(mAttributes, attributes, sizeof(audio_attributes_t)); 1596 mStreamType = audio_attributes_to_stream_type(attributes); 1597 } 1598} 1599 1600void MediaPlayerService::AudioOutput::setAudioStreamType(audio_stream_type_t streamType) 1601{ 1602 Mutex::Autolock lock(mLock); 1603 // do not allow direct stream type modification if attributes have been set 1604 if (mAttributes == NULL) { 1605 mStreamType = streamType; 1606 } 1607} 1608 1609void MediaPlayerService::AudioOutput::deleteRecycledTrack_l() 1610{ 1611 ALOGV("deleteRecycledTrack_l"); 1612 if (mRecycledTrack != 0) { 1613 1614 if (mCallbackData != NULL) { 1615 mCallbackData->setOutput(NULL); 1616 mCallbackData->endTrackSwitch(); 1617 } 1618 1619 if ((mRecycledTrack->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) { 1620 int32_t msec = 0; 1621 if (!mRecycledTrack->stopped()) { // check if active 1622 (void)mRecycledTrack->pendingDuration(&msec); 1623 } 1624 mRecycledTrack->stop(); // ensure full data drain 1625 ALOGD("deleting recycled track, waiting for data drain (%d msec)", msec); 1626 if (msec > 0) { 1627 static const int32_t WAIT_LIMIT_MS = 3000; 1628 if (msec > WAIT_LIMIT_MS) { 1629 msec = WAIT_LIMIT_MS; 1630 } 1631 usleep(msec * 1000LL); 1632 } 1633 } 1634 // An offloaded track isn't flushed because the STREAM_END is reported 1635 // slightly prematurely to allow time for the gapless track switch 1636 // but this means that if we decide not to recycle the track there 1637 // could be a small amount of residual data still playing. We leave 1638 // AudioFlinger to drain the track. 1639 1640 mRecycledTrack.clear(); 1641 close_l(); 1642 delete mCallbackData; 1643 mCallbackData = NULL; 1644 } 1645} 1646 1647void MediaPlayerService::AudioOutput::close_l() 1648{ 1649 mTrack.clear(); 1650} 1651 1652status_t MediaPlayerService::AudioOutput::open( 1653 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 1654 audio_format_t format, int bufferCount, 1655 AudioCallback cb, void *cookie, 1656 audio_output_flags_t flags, 1657 const audio_offload_info_t *offloadInfo, 1658 bool doNotReconnect, 1659 uint32_t suggestedFrameCount) 1660{ 1661 ALOGV("open(%u, %d, 0x%x, 0x%x, %d, %d 0x%x)", sampleRate, channelCount, channelMask, 1662 format, bufferCount, mSessionId, flags); 1663 1664 // offloading is only supported in callback mode for now. 1665 // offloadInfo must be present if offload flag is set 1666 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) && 1667 ((cb == NULL) || (offloadInfo == NULL))) { 1668 return BAD_VALUE; 1669 } 1670 1671 // compute frame count for the AudioTrack internal buffer 1672 size_t frameCount; 1673 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1674 frameCount = 0; // AudioTrack will get frame count from AudioFlinger 1675 } else { 1676 // try to estimate the buffer processing fetch size from AudioFlinger. 1677 // framesPerBuffer is approximate and generally correct, except when it's not :-). 1678 uint32_t afSampleRate; 1679 size_t afFrameCount; 1680 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1681 return NO_INIT; 1682 } 1683 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1684 return NO_INIT; 1685 } 1686 const size_t framesPerBuffer = 1687 (unsigned long long)sampleRate * afFrameCount / afSampleRate; 1688 1689 if (bufferCount == 0) { 1690 // use suggestedFrameCount 1691 bufferCount = (suggestedFrameCount + framesPerBuffer - 1) / framesPerBuffer; 1692 } 1693 // Check argument bufferCount against the mininum buffer count 1694 if (bufferCount != 0 && bufferCount < mMinBufferCount) { 1695 ALOGV("bufferCount (%d) increased to %d", bufferCount, mMinBufferCount); 1696 bufferCount = mMinBufferCount; 1697 } 1698 // if frameCount is 0, then AudioTrack will get frame count from AudioFlinger 1699 // which will be the minimum size permitted. 1700 frameCount = bufferCount * framesPerBuffer; 1701 } 1702 1703 if (channelMask == CHANNEL_MASK_USE_CHANNEL_ORDER) { 1704 channelMask = audio_channel_out_mask_from_count(channelCount); 1705 if (0 == channelMask) { 1706 ALOGE("open() error, can\'t derive mask for %d audio channels", channelCount); 1707 return NO_INIT; 1708 } 1709 } 1710 1711 Mutex::Autolock lock(mLock); 1712 mCallback = cb; 1713 mCallbackCookie = cookie; 1714 1715 // Check whether we can recycle the track 1716 bool reuse = false; 1717 bool bothOffloaded = false; 1718 1719 if (mRecycledTrack != 0) { 1720 // check whether we are switching between two offloaded tracks 1721 bothOffloaded = (flags & mRecycledTrack->getFlags() 1722 & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; 1723 1724 // check if the existing track can be reused as-is, or if a new track needs to be created. 1725 reuse = true; 1726 1727 if ((mCallbackData == NULL && mCallback != NULL) || 1728 (mCallbackData != NULL && mCallback == NULL)) { 1729 // recycled track uses callbacks but the caller wants to use writes, or vice versa 1730 ALOGV("can't chain callback and write"); 1731 reuse = false; 1732 } else if ((mRecycledTrack->getSampleRate() != sampleRate) || 1733 (mRecycledTrack->channelCount() != (uint32_t)channelCount) ) { 1734 ALOGV("samplerate, channelcount differ: %u/%u Hz, %u/%d ch", 1735 mRecycledTrack->getSampleRate(), sampleRate, 1736 mRecycledTrack->channelCount(), channelCount); 1737 reuse = false; 1738 } else if (flags != mFlags) { 1739 ALOGV("output flags differ %08x/%08x", flags, mFlags); 1740 reuse = false; 1741 } else if (mRecycledTrack->format() != format) { 1742 reuse = false; 1743 } 1744 } else { 1745 ALOGV("no track available to recycle"); 1746 } 1747 1748 ALOGV_IF(bothOffloaded, "both tracks offloaded"); 1749 1750 // If we can't recycle and both tracks are offloaded 1751 // we must close the previous output before opening a new one 1752 if (bothOffloaded && !reuse) { 1753 ALOGV("both offloaded and not recycling"); 1754 deleteRecycledTrack_l(); 1755 } 1756 1757 sp<AudioTrack> t; 1758 CallbackData *newcbd = NULL; 1759 1760 // We don't attempt to create a new track if we are recycling an 1761 // offloaded track. But, if we are recycling a non-offloaded or we 1762 // are switching where one is offloaded and one isn't then we create 1763 // the new track in advance so that we can read additional stream info 1764 1765 if (!(reuse && bothOffloaded)) { 1766 ALOGV("creating new AudioTrack"); 1767 1768 if (mCallback != NULL) { 1769 newcbd = new CallbackData(this); 1770 t = new AudioTrack( 1771 mStreamType, 1772 sampleRate, 1773 format, 1774 channelMask, 1775 frameCount, 1776 flags, 1777 CallbackWrapper, 1778 newcbd, 1779 0, // notification frames 1780 mSessionId, 1781 AudioTrack::TRANSFER_CALLBACK, 1782 offloadInfo, 1783 mUid, 1784 mPid, 1785 mAttributes, 1786 doNotReconnect); 1787 } else { 1788 // TODO: Due to buffer memory concerns, we use a max target playback speed 1789 // based on mPlaybackRate at the time of open (instead of kMaxRequiredSpeed), 1790 // also clamping the target speed to 1.0 <= targetSpeed <= kMaxRequiredSpeed. 1791 const float targetSpeed = 1792 std::min(std::max(mPlaybackRate.mSpeed, 1.0f), kMaxRequiredSpeed); 1793 ALOGW_IF(targetSpeed != mPlaybackRate.mSpeed, 1794 "track target speed:%f clamped from playback speed:%f", 1795 targetSpeed, mPlaybackRate.mSpeed); 1796 t = new AudioTrack( 1797 mStreamType, 1798 sampleRate, 1799 format, 1800 channelMask, 1801 frameCount, 1802 flags, 1803 NULL, // callback 1804 NULL, // user data 1805 0, // notification frames 1806 mSessionId, 1807 AudioTrack::TRANSFER_DEFAULT, 1808 NULL, // offload info 1809 mUid, 1810 mPid, 1811 mAttributes, 1812 doNotReconnect, 1813 targetSpeed); 1814 } 1815 1816 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1817 ALOGE("Unable to create audio track"); 1818 delete newcbd; 1819 // t goes out of scope, so reference count drops to zero 1820 return NO_INIT; 1821 } else { 1822 // successful AudioTrack initialization implies a legacy stream type was generated 1823 // from the audio attributes 1824 mStreamType = t->streamType(); 1825 } 1826 } 1827 1828 if (reuse) { 1829 CHECK(mRecycledTrack != NULL); 1830 1831 if (!bothOffloaded) { 1832 if (mRecycledTrack->frameCount() != t->frameCount()) { 1833 ALOGV("framecount differs: %zu/%zu frames", 1834 mRecycledTrack->frameCount(), t->frameCount()); 1835 reuse = false; 1836 } 1837 } 1838 1839 if (reuse) { 1840 ALOGV("chaining to next output and recycling track"); 1841 close_l(); 1842 mTrack = mRecycledTrack; 1843 mRecycledTrack.clear(); 1844 if (mCallbackData != NULL) { 1845 mCallbackData->setOutput(this); 1846 } 1847 delete newcbd; 1848 return OK; 1849 } 1850 } 1851 1852 // we're not going to reuse the track, unblock and flush it 1853 // this was done earlier if both tracks are offloaded 1854 if (!bothOffloaded) { 1855 deleteRecycledTrack_l(); 1856 } 1857 1858 CHECK((t != NULL) && ((mCallback == NULL) || (newcbd != NULL))); 1859 1860 mCallbackData = newcbd; 1861 ALOGV("setVolume"); 1862 t->setVolume(mLeftVolume, mRightVolume); 1863 1864 mSampleRateHz = sampleRate; 1865 mFlags = flags; 1866 mMsecsPerFrame = 1E3f / (mPlaybackRate.mSpeed * sampleRate); 1867 mFrameSize = t->frameSize(); 1868 mTrack = t; 1869 1870 status_t res = NO_ERROR; 1871 // Note some output devices may give us a direct track even though we don't specify it. 1872 // Example: Line application b/17459982. 1873 if ((t->getFlags() & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD | AUDIO_OUTPUT_FLAG_DIRECT)) == 0) { 1874 res = t->setPlaybackRate(mPlaybackRate); 1875 if (res == NO_ERROR) { 1876 t->setAuxEffectSendLevel(mSendLevel); 1877 res = t->attachAuxEffect(mAuxEffectId); 1878 } 1879 } 1880 ALOGV("open() DONE status %d", res); 1881 return res; 1882} 1883 1884status_t MediaPlayerService::AudioOutput::start() 1885{ 1886 ALOGV("start"); 1887 Mutex::Autolock lock(mLock); 1888 if (mCallbackData != NULL) { 1889 mCallbackData->endTrackSwitch(); 1890 } 1891 if (mTrack != 0) { 1892 mTrack->setVolume(mLeftVolume, mRightVolume); 1893 mTrack->setAuxEffectSendLevel(mSendLevel); 1894 return mTrack->start(); 1895 } 1896 return NO_INIT; 1897} 1898 1899void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) { 1900 Mutex::Autolock lock(mLock); 1901 mNextOutput = nextOutput; 1902} 1903 1904void MediaPlayerService::AudioOutput::switchToNextOutput() { 1905 ALOGV("switchToNextOutput"); 1906 1907 // Try to acquire the callback lock before moving track (without incurring deadlock). 1908 const unsigned kMaxSwitchTries = 100; 1909 Mutex::Autolock lock(mLock); 1910 for (unsigned tries = 0;;) { 1911 if (mTrack == 0) { 1912 return; 1913 } 1914 if (mNextOutput != NULL && mNextOutput != this) { 1915 if (mCallbackData != NULL) { 1916 // two alternative approaches 1917#if 1 1918 CallbackData *callbackData = mCallbackData; 1919 mLock.unlock(); 1920 // proper acquisition sequence 1921 callbackData->lock(); 1922 mLock.lock(); 1923 // Caution: it is unlikely that someone deleted our callback or changed our target 1924 if (callbackData != mCallbackData || mNextOutput == NULL || mNextOutput == this) { 1925 // fatal if we are starved out. 1926 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries, 1927 "switchToNextOutput() cannot obtain correct lock sequence"); 1928 callbackData->unlock(); 1929 continue; 1930 } 1931 callbackData->mSwitching = true; // begin track switch 1932#else 1933 // tryBeginTrackSwitch() returns false if the callback has the lock. 1934 if (!mCallbackData->tryBeginTrackSwitch()) { 1935 // fatal if we are starved out. 1936 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries, 1937 "switchToNextOutput() cannot obtain callback lock"); 1938 mLock.unlock(); 1939 usleep(5 * 1000 /* usec */); // allow callback to use AudioOutput 1940 mLock.lock(); 1941 continue; 1942 } 1943#endif 1944 } 1945 1946 Mutex::Autolock nextLock(mNextOutput->mLock); 1947 1948 // If the next output track is not NULL, then it has been 1949 // opened already for playback. 1950 // This is possible even without the next player being started, 1951 // for example, the next player could be prepared and seeked. 1952 // 1953 // Presuming it isn't advisable to force the track over. 1954 if (mNextOutput->mTrack == NULL) { 1955 ALOGD("Recycling track for gapless playback"); 1956 delete mNextOutput->mCallbackData; 1957 mNextOutput->mCallbackData = mCallbackData; 1958 mNextOutput->mRecycledTrack = mTrack; 1959 mNextOutput->mSampleRateHz = mSampleRateHz; 1960 mNextOutput->mMsecsPerFrame = mMsecsPerFrame; 1961 mNextOutput->mFlags = mFlags; 1962 mNextOutput->mFrameSize = mFrameSize; 1963 close_l(); 1964 mCallbackData = NULL; // destruction handled by mNextOutput 1965 } else { 1966 ALOGW("Ignoring gapless playback because next player has already started"); 1967 // remove track in case resource needed for future players. 1968 if (mCallbackData != NULL) { 1969 mCallbackData->endTrackSwitch(); // release lock for callbacks before close. 1970 } 1971 close_l(); 1972 } 1973 } 1974 break; 1975 } 1976} 1977 1978ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size, bool blocking) 1979{ 1980 Mutex::Autolock lock(mLock); 1981 LOG_ALWAYS_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 1982 1983 //ALOGV("write(%p, %u)", buffer, size); 1984 if (mTrack != 0) { 1985 return mTrack->write(buffer, size, blocking); 1986 } 1987 return NO_INIT; 1988} 1989 1990void MediaPlayerService::AudioOutput::stop() 1991{ 1992 ALOGV("stop"); 1993 Mutex::Autolock lock(mLock); 1994 if (mTrack != 0) mTrack->stop(); 1995} 1996 1997void MediaPlayerService::AudioOutput::flush() 1998{ 1999 ALOGV("flush"); 2000 Mutex::Autolock lock(mLock); 2001 if (mTrack != 0) mTrack->flush(); 2002} 2003 2004void MediaPlayerService::AudioOutput::pause() 2005{ 2006 ALOGV("pause"); 2007 Mutex::Autolock lock(mLock); 2008 if (mTrack != 0) mTrack->pause(); 2009} 2010 2011void MediaPlayerService::AudioOutput::close() 2012{ 2013 ALOGV("close"); 2014 sp<AudioTrack> track; 2015 { 2016 Mutex::Autolock lock(mLock); 2017 track = mTrack; 2018 close_l(); // clears mTrack 2019 } 2020 // destruction of the track occurs outside of mutex. 2021} 2022 2023void MediaPlayerService::AudioOutput::setVolume(float left, float right) 2024{ 2025 ALOGV("setVolume(%f, %f)", left, right); 2026 Mutex::Autolock lock(mLock); 2027 mLeftVolume = left; 2028 mRightVolume = right; 2029 if (mTrack != 0) { 2030 mTrack->setVolume(left, right); 2031 } 2032} 2033 2034status_t MediaPlayerService::AudioOutput::setPlaybackRate(const AudioPlaybackRate &rate) 2035{ 2036 ALOGV("setPlaybackRate(%f %f %d %d)", 2037 rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode); 2038 Mutex::Autolock lock(mLock); 2039 if (mTrack == 0) { 2040 // remember rate so that we can set it when the track is opened 2041 mPlaybackRate = rate; 2042 return OK; 2043 } 2044 status_t res = mTrack->setPlaybackRate(rate); 2045 if (res != NO_ERROR) { 2046 return res; 2047 } 2048 // rate.mSpeed is always greater than 0 if setPlaybackRate succeeded 2049 CHECK_GT(rate.mSpeed, 0.f); 2050 mPlaybackRate = rate; 2051 if (mSampleRateHz != 0) { 2052 mMsecsPerFrame = 1E3f / (rate.mSpeed * mSampleRateHz); 2053 } 2054 return res; 2055} 2056 2057status_t MediaPlayerService::AudioOutput::getPlaybackRate(AudioPlaybackRate *rate) 2058{ 2059 ALOGV("setPlaybackRate"); 2060 Mutex::Autolock lock(mLock); 2061 if (mTrack == 0) { 2062 return NO_INIT; 2063 } 2064 *rate = mTrack->getPlaybackRate(); 2065 return NO_ERROR; 2066} 2067 2068status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level) 2069{ 2070 ALOGV("setAuxEffectSendLevel(%f)", level); 2071 Mutex::Autolock lock(mLock); 2072 mSendLevel = level; 2073 if (mTrack != 0) { 2074 return mTrack->setAuxEffectSendLevel(level); 2075 } 2076 return NO_ERROR; 2077} 2078 2079status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId) 2080{ 2081 ALOGV("attachAuxEffect(%d)", effectId); 2082 Mutex::Autolock lock(mLock); 2083 mAuxEffectId = effectId; 2084 if (mTrack != 0) { 2085 return mTrack->attachAuxEffect(effectId); 2086 } 2087 return NO_ERROR; 2088} 2089 2090// static 2091void MediaPlayerService::AudioOutput::CallbackWrapper( 2092 int event, void *cookie, void *info) { 2093 //ALOGV("callbackwrapper"); 2094 CallbackData *data = (CallbackData*)cookie; 2095 // lock to ensure we aren't caught in the middle of a track switch. 2096 data->lock(); 2097 AudioOutput *me = data->getOutput(); 2098 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 2099 if (me == NULL) { 2100 // no output set, likely because the track was scheduled to be reused 2101 // by another player, but the format turned out to be incompatible. 2102 data->unlock(); 2103 if (buffer != NULL) { 2104 buffer->size = 0; 2105 } 2106 return; 2107 } 2108 2109 switch(event) { 2110 case AudioTrack::EVENT_MORE_DATA: { 2111 size_t actualSize = (*me->mCallback)( 2112 me, buffer->raw, buffer->size, me->mCallbackCookie, 2113 CB_EVENT_FILL_BUFFER); 2114 2115 // Log when no data is returned from the callback. 2116 // (1) We may have no data (especially with network streaming sources). 2117 // (2) We may have reached the EOS and the audio track is not stopped yet. 2118 // Note that AwesomePlayer/AudioPlayer will only return zero size when it reaches the EOS. 2119 // NuPlayerRenderer will return zero when it doesn't have data (it doesn't block to fill). 2120 // 2121 // This is a benign busy-wait, with the next data request generated 10 ms or more later; 2122 // nevertheless for power reasons, we don't want to see too many of these. 2123 2124 ALOGV_IF(actualSize == 0 && buffer->size > 0, "callbackwrapper: empty buffer returned"); 2125 2126 buffer->size = actualSize; 2127 } break; 2128 2129 case AudioTrack::EVENT_STREAM_END: 2130 // currently only occurs for offloaded callbacks 2131 ALOGV("callbackwrapper: deliver EVENT_STREAM_END"); 2132 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 2133 me->mCallbackCookie, CB_EVENT_STREAM_END); 2134 break; 2135 2136 case AudioTrack::EVENT_NEW_IAUDIOTRACK : 2137 ALOGV("callbackwrapper: deliver EVENT_TEAR_DOWN"); 2138 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 2139 me->mCallbackCookie, CB_EVENT_TEAR_DOWN); 2140 break; 2141 2142 case AudioTrack::EVENT_UNDERRUN: 2143 // This occurs when there is no data available, typically 2144 // when there is a failure to supply data to the AudioTrack. It can also 2145 // occur in non-offloaded mode when the audio device comes out of standby. 2146 // 2147 // If an AudioTrack underruns it outputs silence. Since this happens suddenly 2148 // it may sound like an audible pop or glitch. 2149 // 2150 // The underrun event is sent once per track underrun; the condition is reset 2151 // when more data is sent to the AudioTrack. 2152 ALOGD("callbackwrapper: EVENT_UNDERRUN (discarded)"); 2153 break; 2154 2155 default: 2156 ALOGE("received unknown event type: %d inside CallbackWrapper !", event); 2157 } 2158 2159 data->unlock(); 2160} 2161 2162audio_session_t MediaPlayerService::AudioOutput::getSessionId() const 2163{ 2164 Mutex::Autolock lock(mLock); 2165 return mSessionId; 2166} 2167 2168uint32_t MediaPlayerService::AudioOutput::getSampleRate() const 2169{ 2170 Mutex::Autolock lock(mLock); 2171 if (mTrack == 0) return 0; 2172 return mTrack->getSampleRate(); 2173} 2174 2175int64_t MediaPlayerService::AudioOutput::getBufferDurationInUs() const 2176{ 2177 Mutex::Autolock lock(mLock); 2178 if (mTrack == 0) { 2179 return 0; 2180 } 2181 int64_t duration; 2182 if (mTrack->getBufferDurationInUs(&duration) != OK) { 2183 return 0; 2184 } 2185 return duration; 2186} 2187 2188//////////////////////////////////////////////////////////////////////////////// 2189 2190struct CallbackThread : public Thread { 2191 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 2192 MediaPlayerBase::AudioSink::AudioCallback cb, 2193 void *cookie); 2194 2195protected: 2196 virtual ~CallbackThread(); 2197 2198 virtual bool threadLoop(); 2199 2200private: 2201 wp<MediaPlayerBase::AudioSink> mSink; 2202 MediaPlayerBase::AudioSink::AudioCallback mCallback; 2203 void *mCookie; 2204 void *mBuffer; 2205 size_t mBufferSize; 2206 2207 CallbackThread(const CallbackThread &); 2208 CallbackThread &operator=(const CallbackThread &); 2209}; 2210 2211CallbackThread::CallbackThread( 2212 const wp<MediaPlayerBase::AudioSink> &sink, 2213 MediaPlayerBase::AudioSink::AudioCallback cb, 2214 void *cookie) 2215 : mSink(sink), 2216 mCallback(cb), 2217 mCookie(cookie), 2218 mBuffer(NULL), 2219 mBufferSize(0) { 2220} 2221 2222CallbackThread::~CallbackThread() { 2223 if (mBuffer) { 2224 free(mBuffer); 2225 mBuffer = NULL; 2226 } 2227} 2228 2229bool CallbackThread::threadLoop() { 2230 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 2231 if (sink == NULL) { 2232 return false; 2233 } 2234 2235 if (mBuffer == NULL) { 2236 mBufferSize = sink->bufferSize(); 2237 mBuffer = malloc(mBufferSize); 2238 } 2239 2240 size_t actualSize = 2241 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie, 2242 MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER); 2243 2244 if (actualSize > 0) { 2245 sink->write(mBuffer, actualSize); 2246 // Could return false on sink->write() error or short count. 2247 // Not necessarily appropriate but would work for AudioCache behavior. 2248 } 2249 2250 return true; 2251} 2252 2253//////////////////////////////////////////////////////////////////////////////// 2254 2255void MediaPlayerService::addBatteryData(uint32_t params) 2256{ 2257 Mutex::Autolock lock(mLock); 2258 2259 int32_t time = systemTime() / 1000000L; 2260 2261 // change audio output devices. This notification comes from AudioFlinger 2262 if ((params & kBatteryDataSpeakerOn) 2263 || (params & kBatteryDataOtherAudioDeviceOn)) { 2264 2265 int deviceOn[NUM_AUDIO_DEVICES]; 2266 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2267 deviceOn[i] = 0; 2268 } 2269 2270 if ((params & kBatteryDataSpeakerOn) 2271 && (params & kBatteryDataOtherAudioDeviceOn)) { 2272 deviceOn[SPEAKER_AND_OTHER] = 1; 2273 } else if (params & kBatteryDataSpeakerOn) { 2274 deviceOn[SPEAKER] = 1; 2275 } else { 2276 deviceOn[OTHER_AUDIO_DEVICE] = 1; 2277 } 2278 2279 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2280 if (mBatteryAudio.deviceOn[i] != deviceOn[i]){ 2281 2282 if (mBatteryAudio.refCount > 0) { // if playing audio 2283 if (!deviceOn[i]) { 2284 mBatteryAudio.lastTime[i] += time; 2285 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2286 mBatteryAudio.lastTime[i] = 0; 2287 } else { 2288 mBatteryAudio.lastTime[i] = 0 - time; 2289 } 2290 } 2291 2292 mBatteryAudio.deviceOn[i] = deviceOn[i]; 2293 } 2294 } 2295 return; 2296 } 2297 2298 // an audio stream is started 2299 if (params & kBatteryDataAudioFlingerStart) { 2300 // record the start time only if currently no other audio 2301 // is being played 2302 if (mBatteryAudio.refCount == 0) { 2303 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2304 if (mBatteryAudio.deviceOn[i]) { 2305 mBatteryAudio.lastTime[i] -= time; 2306 } 2307 } 2308 } 2309 2310 mBatteryAudio.refCount ++; 2311 return; 2312 2313 } else if (params & kBatteryDataAudioFlingerStop) { 2314 if (mBatteryAudio.refCount <= 0) { 2315 ALOGW("Battery track warning: refCount is <= 0"); 2316 return; 2317 } 2318 2319 // record the stop time only if currently this is the only 2320 // audio being played 2321 if (mBatteryAudio.refCount == 1) { 2322 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2323 if (mBatteryAudio.deviceOn[i]) { 2324 mBatteryAudio.lastTime[i] += time; 2325 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2326 mBatteryAudio.lastTime[i] = 0; 2327 } 2328 } 2329 } 2330 2331 mBatteryAudio.refCount --; 2332 return; 2333 } 2334 2335 int uid = IPCThreadState::self()->getCallingUid(); 2336 if (uid == AID_MEDIA) { 2337 return; 2338 } 2339 int index = mBatteryData.indexOfKey(uid); 2340 2341 if (index < 0) { // create a new entry for this UID 2342 BatteryUsageInfo info; 2343 info.audioTotalTime = 0; 2344 info.videoTotalTime = 0; 2345 info.audioLastTime = 0; 2346 info.videoLastTime = 0; 2347 info.refCount = 0; 2348 2349 if (mBatteryData.add(uid, info) == NO_MEMORY) { 2350 ALOGE("Battery track error: no memory for new app"); 2351 return; 2352 } 2353 } 2354 2355 BatteryUsageInfo &info = mBatteryData.editValueFor(uid); 2356 2357 if (params & kBatteryDataCodecStarted) { 2358 if (params & kBatteryDataTrackAudio) { 2359 info.audioLastTime -= time; 2360 info.refCount ++; 2361 } 2362 if (params & kBatteryDataTrackVideo) { 2363 info.videoLastTime -= time; 2364 info.refCount ++; 2365 } 2366 } else { 2367 if (info.refCount == 0) { 2368 ALOGW("Battery track warning: refCount is already 0"); 2369 return; 2370 } else if (info.refCount < 0) { 2371 ALOGE("Battery track error: refCount < 0"); 2372 mBatteryData.removeItem(uid); 2373 return; 2374 } 2375 2376 if (params & kBatteryDataTrackAudio) { 2377 info.audioLastTime += time; 2378 info.refCount --; 2379 } 2380 if (params & kBatteryDataTrackVideo) { 2381 info.videoLastTime += time; 2382 info.refCount --; 2383 } 2384 2385 // no stream is being played by this UID 2386 if (info.refCount == 0) { 2387 info.audioTotalTime += info.audioLastTime; 2388 info.audioLastTime = 0; 2389 info.videoTotalTime += info.videoLastTime; 2390 info.videoLastTime = 0; 2391 } 2392 } 2393} 2394 2395status_t MediaPlayerService::pullBatteryData(Parcel* reply) { 2396 Mutex::Autolock lock(mLock); 2397 2398 // audio output devices usage 2399 int32_t time = systemTime() / 1000000L; //in ms 2400 int32_t totalTime; 2401 2402 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2403 totalTime = mBatteryAudio.totalTime[i]; 2404 2405 if (mBatteryAudio.deviceOn[i] 2406 && (mBatteryAudio.lastTime[i] != 0)) { 2407 int32_t tmpTime = mBatteryAudio.lastTime[i] + time; 2408 totalTime += tmpTime; 2409 } 2410 2411 reply->writeInt32(totalTime); 2412 // reset the total time 2413 mBatteryAudio.totalTime[i] = 0; 2414 } 2415 2416 // codec usage 2417 BatteryUsageInfo info; 2418 int size = mBatteryData.size(); 2419 2420 reply->writeInt32(size); 2421 int i = 0; 2422 2423 while (i < size) { 2424 info = mBatteryData.valueAt(i); 2425 2426 reply->writeInt32(mBatteryData.keyAt(i)); //UID 2427 reply->writeInt32(info.audioTotalTime); 2428 reply->writeInt32(info.videoTotalTime); 2429 2430 info.audioTotalTime = 0; 2431 info.videoTotalTime = 0; 2432 2433 // remove the UID entry where no stream is being played 2434 if (info.refCount <= 0) { 2435 mBatteryData.removeItemsAt(i); 2436 size --; 2437 i --; 2438 } 2439 i++; 2440 } 2441 return NO_ERROR; 2442} 2443} // namespace android 2444