MediaPlayerService.cpp revision 1b5a7ee3fdc33ee584a88580171fbad154e10f5d
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 561bool MediaPlayerService::hasClient(wp<Client> client) 562{ 563 Mutex::Autolock lock(mLock); 564 return mClients.indexOf(client) != NAME_NOT_FOUND; 565} 566 567MediaPlayerService::Client::Client( 568 const sp<MediaPlayerService>& service, pid_t pid, 569 int32_t connId, const sp<IMediaPlayerClient>& client, 570 audio_session_t audioSessionId, uid_t uid) 571{ 572 ALOGV("Client(%d) constructor", connId); 573 mPid = pid; 574 mConnId = connId; 575 mService = service; 576 mClient = client; 577 mLoop = false; 578 mStatus = NO_INIT; 579 mAudioSessionId = audioSessionId; 580 mUID = uid; 581 mRetransmitEndpointValid = false; 582 mAudioAttributes = NULL; 583 584#if CALLBACK_ANTAGONIZER 585 ALOGD("create Antagonizer"); 586 mAntagonizer = new Antagonizer(notify, this); 587#endif 588} 589 590MediaPlayerService::Client::~Client() 591{ 592 ALOGV("Client(%d) destructor pid = %d", mConnId, mPid); 593 mAudioOutput.clear(); 594 wp<Client> client(this); 595 disconnect(); 596 mService->removeClient(client); 597 if (mAudioAttributes != NULL) { 598 free(mAudioAttributes); 599 } 600} 601 602void MediaPlayerService::Client::disconnect() 603{ 604 ALOGV("disconnect(%d) from pid %d", mConnId, mPid); 605 // grab local reference and clear main reference to prevent future 606 // access to object 607 sp<MediaPlayerBase> p; 608 { 609 Mutex::Autolock l(mLock); 610 p = mPlayer; 611 mClient.clear(); 612 } 613 614 mPlayer.clear(); 615 616 // clear the notification to prevent callbacks to dead client 617 // and reset the player. We assume the player will serialize 618 // access to itself if necessary. 619 if (p != 0) { 620 p->setNotifyCallback(0, 0); 621#if CALLBACK_ANTAGONIZER 622 ALOGD("kill Antagonizer"); 623 mAntagonizer->kill(); 624#endif 625 p->reset(); 626 } 627 628 disconnectNativeWindow(); 629 630 IPCThreadState::self()->flushCommands(); 631} 632 633sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) 634{ 635 // determine if we have the right player type 636 sp<MediaPlayerBase> p = mPlayer; 637 if ((p != NULL) && (p->playerType() != playerType)) { 638 ALOGV("delete player"); 639 p.clear(); 640 } 641 if (p == NULL) { 642 p = MediaPlayerFactory::createPlayer(playerType, this, notify, mPid); 643 } 644 645 if (p != NULL) { 646 p->setUID(mUID); 647 } 648 649 return p; 650} 651 652MediaPlayerService::Client::ServiceDeathNotifier::ServiceDeathNotifier( 653 const sp<IBinder>& service, 654 const sp<MediaPlayerBase>& listener, 655 int which) { 656 mService = service; 657 mListener = listener; 658 mWhich = which; 659} 660 661MediaPlayerService::Client::ServiceDeathNotifier::~ServiceDeathNotifier() { 662 mService->unlinkToDeath(this); 663} 664 665void MediaPlayerService::Client::ServiceDeathNotifier::binderDied(const wp<IBinder>& /*who*/) { 666 sp<MediaPlayerBase> listener = mListener.promote(); 667 if (listener != NULL) { 668 listener->sendEvent(MEDIA_ERROR, MEDIA_ERROR_SERVER_DIED, mWhich); 669 } else { 670 ALOGW("listener for process %d death is gone", mWhich); 671 } 672} 673 674sp<MediaPlayerBase> MediaPlayerService::Client::setDataSource_pre( 675 player_type playerType) 676{ 677 ALOGV("player type = %d", playerType); 678 679 // create the right type of player 680 sp<MediaPlayerBase> p = createPlayer(playerType); 681 if (p == NULL) { 682 return p; 683 } 684 685 sp<IServiceManager> sm = defaultServiceManager(); 686 sp<IBinder> binder = sm->getService(String16("media.extractor")); 687 if (binder == NULL) { 688 ALOGE("extractor service not available"); 689 return NULL; 690 } 691 mExtractorDeathListener = new ServiceDeathNotifier(binder, p, MEDIAEXTRACTOR_PROCESS_DEATH); 692 binder->linkToDeath(mExtractorDeathListener); 693 694 binder = sm->getService(String16("media.codec")); 695 if (binder == NULL) { 696 ALOGE("codec service not available"); 697 return NULL; 698 } 699 mCodecDeathListener = new ServiceDeathNotifier(binder, p, MEDIACODEC_PROCESS_DEATH); 700 binder->linkToDeath(mCodecDeathListener); 701 702 if (!p->hardwareOutput()) { 703 Mutex::Autolock l(mLock); 704 mAudioOutput = new AudioOutput(mAudioSessionId, IPCThreadState::self()->getCallingUid(), 705 mPid, mAudioAttributes); 706 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 707 } 708 709 return p; 710} 711 712void MediaPlayerService::Client::setDataSource_post( 713 const sp<MediaPlayerBase>& p, 714 status_t status) 715{ 716 ALOGV(" setDataSource"); 717 mStatus = status; 718 if (mStatus != OK) { 719 ALOGE(" error: %d", mStatus); 720 return; 721 } 722 723 // Set the re-transmission endpoint if one was chosen. 724 if (mRetransmitEndpointValid) { 725 mStatus = p->setRetransmitEndpoint(&mRetransmitEndpoint); 726 if (mStatus != NO_ERROR) { 727 ALOGE("setRetransmitEndpoint error: %d", mStatus); 728 } 729 } 730 731 if (mStatus == OK) { 732 mPlayer = p; 733 } 734} 735 736status_t MediaPlayerService::Client::setDataSource( 737 const sp<IMediaHTTPService> &httpService, 738 const char *url, 739 const KeyedVector<String8, String8> *headers) 740{ 741 ALOGV("setDataSource(%s)", url); 742 if (url == NULL) 743 return UNKNOWN_ERROR; 744 745 if ((strncmp(url, "http://", 7) == 0) || 746 (strncmp(url, "https://", 8) == 0) || 747 (strncmp(url, "rtsp://", 7) == 0)) { 748 if (!checkPermission("android.permission.INTERNET")) { 749 return PERMISSION_DENIED; 750 } 751 } 752 753 if (strncmp(url, "content://", 10) == 0) { 754 // get a filedescriptor for the content Uri and 755 // pass it to the setDataSource(fd) method 756 757 String16 url16(url); 758 int fd = android::openContentProviderFile(url16); 759 if (fd < 0) 760 { 761 ALOGE("Couldn't open fd for %s", url); 762 return UNKNOWN_ERROR; 763 } 764 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 765 close(fd); 766 return mStatus; 767 } else { 768 player_type playerType = MediaPlayerFactory::getPlayerType(this, url); 769 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 770 if (p == NULL) { 771 return NO_INIT; 772 } 773 774 setDataSource_post(p, p->setDataSource(httpService, url, headers)); 775 return mStatus; 776 } 777} 778 779status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 780{ 781 ALOGV("setDataSource fd=%d (%s), offset=%lld, length=%lld", 782 fd, nameForFd(fd).c_str(), (long long) offset, (long long) length); 783 struct stat sb; 784 int ret = fstat(fd, &sb); 785 if (ret != 0) { 786 ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 787 return UNKNOWN_ERROR; 788 } 789 790 ALOGV("st_dev = %llu", static_cast<unsigned long long>(sb.st_dev)); 791 ALOGV("st_mode = %u", sb.st_mode); 792 ALOGV("st_uid = %lu", static_cast<unsigned long>(sb.st_uid)); 793 ALOGV("st_gid = %lu", static_cast<unsigned long>(sb.st_gid)); 794 ALOGV("st_size = %llu", static_cast<unsigned long long>(sb.st_size)); 795 796 if (offset >= sb.st_size) { 797 ALOGE("offset error"); 798 return UNKNOWN_ERROR; 799 } 800 if (offset + length > sb.st_size) { 801 length = sb.st_size - offset; 802 ALOGV("calculated length = %lld", (long long)length); 803 } 804 805 player_type playerType = MediaPlayerFactory::getPlayerType(this, 806 fd, 807 offset, 808 length); 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(fd, offset, length)); 816 return mStatus; 817} 818 819status_t MediaPlayerService::Client::setDataSource( 820 const sp<IStreamSource> &source) { 821 // create the right type of player 822 player_type playerType = MediaPlayerFactory::getPlayerType(this, source); 823 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 824 if (p == NULL) { 825 return NO_INIT; 826 } 827 828 // now set data source 829 setDataSource_post(p, p->setDataSource(source)); 830 return mStatus; 831} 832 833status_t MediaPlayerService::Client::setDataSource( 834 const sp<IDataSource> &source) { 835 sp<DataSource> dataSource = DataSource::CreateFromIDataSource(source); 836 player_type playerType = MediaPlayerFactory::getPlayerType(this, dataSource); 837 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 838 if (p == NULL) { 839 return NO_INIT; 840 } 841 // now set data source 842 setDataSource_post(p, p->setDataSource(dataSource)); 843 return mStatus; 844} 845 846void MediaPlayerService::Client::disconnectNativeWindow() { 847 if (mConnectedWindow != NULL) { 848 status_t err = native_window_api_disconnect(mConnectedWindow.get(), 849 NATIVE_WINDOW_API_MEDIA); 850 851 if (err != OK) { 852 ALOGW("native_window_api_disconnect returned an error: %s (%d)", 853 strerror(-err), err); 854 } 855 } 856 mConnectedWindow.clear(); 857} 858 859status_t MediaPlayerService::Client::setVideoSurfaceTexture( 860 const sp<IGraphicBufferProducer>& bufferProducer) 861{ 862 ALOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, bufferProducer.get()); 863 sp<MediaPlayerBase> p = getPlayer(); 864 if (p == 0) return UNKNOWN_ERROR; 865 866 sp<IBinder> binder(IInterface::asBinder(bufferProducer)); 867 if (mConnectedWindowBinder == binder) { 868 return OK; 869 } 870 871 sp<ANativeWindow> anw; 872 if (bufferProducer != NULL) { 873 anw = new Surface(bufferProducer, true /* controlledByApp */); 874 status_t err = native_window_api_connect(anw.get(), 875 NATIVE_WINDOW_API_MEDIA); 876 877 if (err != OK) { 878 ALOGE("setVideoSurfaceTexture failed: %d", err); 879 // Note that we must do the reset before disconnecting from the ANW. 880 // Otherwise queue/dequeue calls could be made on the disconnected 881 // ANW, which may result in errors. 882 reset(); 883 884 disconnectNativeWindow(); 885 886 return err; 887 } 888 } 889 890 // Note that we must set the player's new GraphicBufferProducer before 891 // disconnecting the old one. Otherwise queue/dequeue calls could be made 892 // on the disconnected ANW, which may result in errors. 893 status_t err = p->setVideoSurfaceTexture(bufferProducer); 894 895 disconnectNativeWindow(); 896 897 mConnectedWindow = anw; 898 899 if (err == OK) { 900 mConnectedWindowBinder = binder; 901 } else { 902 disconnectNativeWindow(); 903 } 904 905 return err; 906} 907 908status_t MediaPlayerService::Client::invoke(const Parcel& request, 909 Parcel *reply) 910{ 911 sp<MediaPlayerBase> p = getPlayer(); 912 if (p == NULL) return UNKNOWN_ERROR; 913 return p->invoke(request, reply); 914} 915 916// This call doesn't need to access the native player. 917status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 918{ 919 status_t status; 920 media::Metadata::Filter allow, drop; 921 922 if (unmarshallFilter(filter, &allow, &status) && 923 unmarshallFilter(filter, &drop, &status)) { 924 Mutex::Autolock lock(mLock); 925 926 mMetadataAllow = allow; 927 mMetadataDrop = drop; 928 } 929 return status; 930} 931 932status_t MediaPlayerService::Client::getMetadata( 933 bool update_only, bool /*apply_filter*/, Parcel *reply) 934{ 935 sp<MediaPlayerBase> player = getPlayer(); 936 if (player == 0) return UNKNOWN_ERROR; 937 938 status_t status; 939 // Placeholder for the return code, updated by the caller. 940 reply->writeInt32(-1); 941 942 media::Metadata::Filter ids; 943 944 // We don't block notifications while we fetch the data. We clear 945 // mMetadataUpdated first so we don't lose notifications happening 946 // during the rest of this call. 947 { 948 Mutex::Autolock lock(mLock); 949 if (update_only) { 950 ids = mMetadataUpdated; 951 } 952 mMetadataUpdated.clear(); 953 } 954 955 media::Metadata metadata(reply); 956 957 metadata.appendHeader(); 958 status = player->getMetadata(ids, reply); 959 960 if (status != OK) { 961 metadata.resetParcel(); 962 ALOGE("getMetadata failed %d", status); 963 return status; 964 } 965 966 // FIXME: Implement filtering on the result. Not critical since 967 // filtering takes place on the update notifications already. This 968 // would be when all the metadata are fetch and a filter is set. 969 970 // Everything is fine, update the metadata length. 971 metadata.updateLength(); 972 return OK; 973} 974 975status_t MediaPlayerService::Client::prepareAsync() 976{ 977 ALOGV("[%d] prepareAsync", mConnId); 978 sp<MediaPlayerBase> p = getPlayer(); 979 if (p == 0) return UNKNOWN_ERROR; 980 status_t ret = p->prepareAsync(); 981#if CALLBACK_ANTAGONIZER 982 ALOGD("start Antagonizer"); 983 if (ret == NO_ERROR) mAntagonizer->start(); 984#endif 985 return ret; 986} 987 988status_t MediaPlayerService::Client::start() 989{ 990 ALOGV("[%d] start", mConnId); 991 sp<MediaPlayerBase> p = getPlayer(); 992 if (p == 0) return UNKNOWN_ERROR; 993 p->setLooping(mLoop); 994 return p->start(); 995} 996 997status_t MediaPlayerService::Client::stop() 998{ 999 ALOGV("[%d] stop", mConnId); 1000 sp<MediaPlayerBase> p = getPlayer(); 1001 if (p == 0) return UNKNOWN_ERROR; 1002 return p->stop(); 1003} 1004 1005status_t MediaPlayerService::Client::pause() 1006{ 1007 ALOGV("[%d] pause", mConnId); 1008 sp<MediaPlayerBase> p = getPlayer(); 1009 if (p == 0) return UNKNOWN_ERROR; 1010 return p->pause(); 1011} 1012 1013status_t MediaPlayerService::Client::isPlaying(bool* state) 1014{ 1015 *state = false; 1016 sp<MediaPlayerBase> p = getPlayer(); 1017 if (p == 0) return UNKNOWN_ERROR; 1018 *state = p->isPlaying(); 1019 ALOGV("[%d] isPlaying: %d", mConnId, *state); 1020 return NO_ERROR; 1021} 1022 1023status_t MediaPlayerService::Client::setPlaybackSettings(const AudioPlaybackRate& rate) 1024{ 1025 ALOGV("[%d] setPlaybackSettings(%f, %f, %d, %d)", 1026 mConnId, rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode); 1027 sp<MediaPlayerBase> p = getPlayer(); 1028 if (p == 0) return UNKNOWN_ERROR; 1029 return p->setPlaybackSettings(rate); 1030} 1031 1032status_t MediaPlayerService::Client::getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */) 1033{ 1034 sp<MediaPlayerBase> p = getPlayer(); 1035 if (p == 0) return UNKNOWN_ERROR; 1036 status_t ret = p->getPlaybackSettings(rate); 1037 if (ret == NO_ERROR) { 1038 ALOGV("[%d] getPlaybackSettings(%f, %f, %d, %d)", 1039 mConnId, rate->mSpeed, rate->mPitch, rate->mFallbackMode, rate->mStretchMode); 1040 } else { 1041 ALOGV("[%d] getPlaybackSettings returned %d", mConnId, ret); 1042 } 1043 return ret; 1044} 1045 1046status_t MediaPlayerService::Client::setSyncSettings( 1047 const AVSyncSettings& sync, float videoFpsHint) 1048{ 1049 ALOGV("[%d] setSyncSettings(%u, %u, %f, %f)", 1050 mConnId, sync.mSource, sync.mAudioAdjustMode, sync.mTolerance, videoFpsHint); 1051 sp<MediaPlayerBase> p = getPlayer(); 1052 if (p == 0) return UNKNOWN_ERROR; 1053 return p->setSyncSettings(sync, videoFpsHint); 1054} 1055 1056status_t MediaPlayerService::Client::getSyncSettings( 1057 AVSyncSettings* sync /* nonnull */, float* videoFps /* nonnull */) 1058{ 1059 sp<MediaPlayerBase> p = getPlayer(); 1060 if (p == 0) return UNKNOWN_ERROR; 1061 status_t ret = p->getSyncSettings(sync, videoFps); 1062 if (ret == NO_ERROR) { 1063 ALOGV("[%d] getSyncSettings(%u, %u, %f, %f)", 1064 mConnId, sync->mSource, sync->mAudioAdjustMode, sync->mTolerance, *videoFps); 1065 } else { 1066 ALOGV("[%d] getSyncSettings returned %d", mConnId, ret); 1067 } 1068 return ret; 1069} 1070 1071status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 1072{ 1073 ALOGV("getCurrentPosition"); 1074 sp<MediaPlayerBase> p = getPlayer(); 1075 if (p == 0) return UNKNOWN_ERROR; 1076 status_t ret = p->getCurrentPosition(msec); 1077 if (ret == NO_ERROR) { 1078 ALOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 1079 } else { 1080 ALOGE("getCurrentPosition returned %d", ret); 1081 } 1082 return ret; 1083} 1084 1085status_t MediaPlayerService::Client::getDuration(int *msec) 1086{ 1087 ALOGV("getDuration"); 1088 sp<MediaPlayerBase> p = getPlayer(); 1089 if (p == 0) return UNKNOWN_ERROR; 1090 status_t ret = p->getDuration(msec); 1091 if (ret == NO_ERROR) { 1092 ALOGV("[%d] getDuration = %d", mConnId, *msec); 1093 } else { 1094 ALOGE("getDuration returned %d", ret); 1095 } 1096 return ret; 1097} 1098 1099status_t MediaPlayerService::Client::setNextPlayer(const sp<IMediaPlayer>& player) { 1100 ALOGV("setNextPlayer"); 1101 Mutex::Autolock l(mLock); 1102 sp<Client> c = static_cast<Client*>(player.get()); 1103 if (c != NULL && !mService->hasClient(c)) { 1104 return BAD_VALUE; 1105 } 1106 1107 mNextClient = c; 1108 1109 if (c != NULL) { 1110 if (mAudioOutput != NULL) { 1111 mAudioOutput->setNextOutput(c->mAudioOutput); 1112 } else if ((mPlayer != NULL) && !mPlayer->hardwareOutput()) { 1113 ALOGE("no current audio output"); 1114 } 1115 1116 if ((mPlayer != NULL) && (mNextClient->getPlayer() != NULL)) { 1117 mPlayer->setNextPlayer(mNextClient->getPlayer()); 1118 } 1119 } 1120 1121 return OK; 1122} 1123 1124status_t MediaPlayerService::Client::seekTo(int msec) 1125{ 1126 ALOGV("[%d] seekTo(%d)", mConnId, msec); 1127 sp<MediaPlayerBase> p = getPlayer(); 1128 if (p == 0) return UNKNOWN_ERROR; 1129 return p->seekTo(msec); 1130} 1131 1132status_t MediaPlayerService::Client::reset() 1133{ 1134 ALOGV("[%d] reset", mConnId); 1135 mRetransmitEndpointValid = false; 1136 sp<MediaPlayerBase> p = getPlayer(); 1137 if (p == 0) return UNKNOWN_ERROR; 1138 return p->reset(); 1139} 1140 1141status_t MediaPlayerService::Client::setAudioStreamType(audio_stream_type_t type) 1142{ 1143 ALOGV("[%d] setAudioStreamType(%d)", mConnId, type); 1144 // TODO: for hardware output, call player instead 1145 Mutex::Autolock l(mLock); 1146 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 1147 return NO_ERROR; 1148} 1149 1150status_t MediaPlayerService::Client::setAudioAttributes_l(const Parcel &parcel) 1151{ 1152 if (mAudioAttributes != NULL) { free(mAudioAttributes); } 1153 mAudioAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1154 if (mAudioAttributes == NULL) { 1155 return NO_MEMORY; 1156 } 1157 unmarshallAudioAttributes(parcel, mAudioAttributes); 1158 1159 ALOGV("setAudioAttributes_l() usage=%d content=%d flags=0x%x tags=%s", 1160 mAudioAttributes->usage, mAudioAttributes->content_type, mAudioAttributes->flags, 1161 mAudioAttributes->tags); 1162 1163 if (mAudioOutput != 0) { 1164 mAudioOutput->setAudioAttributes(mAudioAttributes); 1165 } 1166 return NO_ERROR; 1167} 1168 1169status_t MediaPlayerService::Client::setLooping(int loop) 1170{ 1171 ALOGV("[%d] setLooping(%d)", mConnId, loop); 1172 mLoop = loop; 1173 sp<MediaPlayerBase> p = getPlayer(); 1174 if (p != 0) return p->setLooping(loop); 1175 return NO_ERROR; 1176} 1177 1178status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1179{ 1180 ALOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1181 1182 // for hardware output, call player instead 1183 sp<MediaPlayerBase> p = getPlayer(); 1184 { 1185 Mutex::Autolock l(mLock); 1186 if (p != 0 && p->hardwareOutput()) { 1187 MediaPlayerHWInterface* hwp = 1188 reinterpret_cast<MediaPlayerHWInterface*>(p.get()); 1189 return hwp->setVolume(leftVolume, rightVolume); 1190 } else { 1191 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1192 return NO_ERROR; 1193 } 1194 } 1195 1196 return NO_ERROR; 1197} 1198 1199status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level) 1200{ 1201 ALOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level); 1202 Mutex::Autolock l(mLock); 1203 if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level); 1204 return NO_ERROR; 1205} 1206 1207status_t MediaPlayerService::Client::attachAuxEffect(int effectId) 1208{ 1209 ALOGV("[%d] attachAuxEffect(%d)", mConnId, effectId); 1210 Mutex::Autolock l(mLock); 1211 if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId); 1212 return NO_ERROR; 1213} 1214 1215status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) { 1216 ALOGV("[%d] setParameter(%d)", mConnId, key); 1217 switch (key) { 1218 case KEY_PARAMETER_AUDIO_ATTRIBUTES: 1219 { 1220 Mutex::Autolock l(mLock); 1221 return setAudioAttributes_l(request); 1222 } 1223 default: 1224 sp<MediaPlayerBase> p = getPlayer(); 1225 if (p == 0) { return UNKNOWN_ERROR; } 1226 return p->setParameter(key, request); 1227 } 1228} 1229 1230status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) { 1231 ALOGV("[%d] getParameter(%d)", mConnId, key); 1232 sp<MediaPlayerBase> p = getPlayer(); 1233 if (p == 0) return UNKNOWN_ERROR; 1234 return p->getParameter(key, reply); 1235} 1236 1237status_t MediaPlayerService::Client::setRetransmitEndpoint( 1238 const struct sockaddr_in* endpoint) { 1239 1240 if (NULL != endpoint) { 1241 uint32_t a = ntohl(endpoint->sin_addr.s_addr); 1242 uint16_t p = ntohs(endpoint->sin_port); 1243 ALOGV("[%d] setRetransmitEndpoint(%u.%u.%u.%u:%hu)", mConnId, 1244 (a >> 24), (a >> 16) & 0xFF, (a >> 8) & 0xFF, (a & 0xFF), p); 1245 } else { 1246 ALOGV("[%d] setRetransmitEndpoint = <none>", mConnId); 1247 } 1248 1249 sp<MediaPlayerBase> p = getPlayer(); 1250 1251 // Right now, the only valid time to set a retransmit endpoint is before 1252 // player selection has been made (since the presence or absence of a 1253 // retransmit endpoint is going to determine which player is selected during 1254 // setDataSource). 1255 if (p != 0) return INVALID_OPERATION; 1256 1257 if (NULL != endpoint) { 1258 mRetransmitEndpoint = *endpoint; 1259 mRetransmitEndpointValid = true; 1260 } else { 1261 mRetransmitEndpointValid = false; 1262 } 1263 1264 return NO_ERROR; 1265} 1266 1267status_t MediaPlayerService::Client::getRetransmitEndpoint( 1268 struct sockaddr_in* endpoint) 1269{ 1270 if (NULL == endpoint) 1271 return BAD_VALUE; 1272 1273 sp<MediaPlayerBase> p = getPlayer(); 1274 1275 if (p != NULL) 1276 return p->getRetransmitEndpoint(endpoint); 1277 1278 if (!mRetransmitEndpointValid) 1279 return NO_INIT; 1280 1281 *endpoint = mRetransmitEndpoint; 1282 1283 return NO_ERROR; 1284} 1285 1286void MediaPlayerService::Client::notify( 1287 void* cookie, int msg, int ext1, int ext2, const Parcel *obj) 1288{ 1289 Client* client = static_cast<Client*>(cookie); 1290 if (client == NULL) { 1291 return; 1292 } 1293 1294 sp<IMediaPlayerClient> c; 1295 { 1296 Mutex::Autolock l(client->mLock); 1297 c = client->mClient; 1298 if (msg == MEDIA_PLAYBACK_COMPLETE && client->mNextClient != NULL) { 1299 if (client->mAudioOutput != NULL) 1300 client->mAudioOutput->switchToNextOutput(); 1301 client->mNextClient->start(); 1302 if (client->mNextClient->mClient != NULL) { 1303 client->mNextClient->mClient->notify( 1304 MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj); 1305 } 1306 } 1307 } 1308 1309 if (MEDIA_INFO == msg && 1310 MEDIA_INFO_METADATA_UPDATE == ext1) { 1311 const media::Metadata::Type metadata_type = ext2; 1312 1313 if(client->shouldDropMetadata(metadata_type)) { 1314 return; 1315 } 1316 1317 // Update the list of metadata that have changed. getMetadata 1318 // also access mMetadataUpdated and clears it. 1319 client->addNewMetadataUpdate(metadata_type); 1320 } 1321 1322 if (c != NULL) { 1323 ALOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1324 c->notify(msg, ext1, ext2, obj); 1325 } 1326} 1327 1328 1329bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1330{ 1331 Mutex::Autolock lock(mLock); 1332 1333 if (findMetadata(mMetadataDrop, code)) { 1334 return true; 1335 } 1336 1337 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1338 return false; 1339 } else { 1340 return true; 1341 } 1342} 1343 1344 1345void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1346 Mutex::Autolock lock(mLock); 1347 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1348 mMetadataUpdated.add(metadata_type); 1349 } 1350} 1351 1352#if CALLBACK_ANTAGONIZER 1353const int Antagonizer::interval = 10000; // 10 msecs 1354 1355Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1356 mExit(false), mActive(false), mClient(client), mCb(cb) 1357{ 1358 createThread(callbackThread, this); 1359} 1360 1361void Antagonizer::kill() 1362{ 1363 Mutex::Autolock _l(mLock); 1364 mActive = false; 1365 mExit = true; 1366 mCondition.wait(mLock); 1367} 1368 1369int Antagonizer::callbackThread(void* user) 1370{ 1371 ALOGD("Antagonizer started"); 1372 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1373 while (!p->mExit) { 1374 if (p->mActive) { 1375 ALOGV("send event"); 1376 p->mCb(p->mClient, 0, 0, 0); 1377 } 1378 usleep(interval); 1379 } 1380 Mutex::Autolock _l(p->mLock); 1381 p->mCondition.signal(); 1382 ALOGD("Antagonizer stopped"); 1383 return 0; 1384} 1385#endif 1386 1387#undef LOG_TAG 1388#define LOG_TAG "AudioSink" 1389MediaPlayerService::AudioOutput::AudioOutput(audio_session_t sessionId, int uid, int pid, 1390 const audio_attributes_t* attr) 1391 : mCallback(NULL), 1392 mCallbackCookie(NULL), 1393 mCallbackData(NULL), 1394 mStreamType(AUDIO_STREAM_MUSIC), 1395 mLeftVolume(1.0), 1396 mRightVolume(1.0), 1397 mPlaybackRate(AUDIO_PLAYBACK_RATE_DEFAULT), 1398 mSampleRateHz(0), 1399 mMsecsPerFrame(0), 1400 mFrameSize(0), 1401 mSessionId(sessionId), 1402 mUid(uid), 1403 mPid(pid), 1404 mSendLevel(0.0), 1405 mAuxEffectId(0), 1406 mFlags(AUDIO_OUTPUT_FLAG_NONE) 1407{ 1408 ALOGV("AudioOutput(%d)", sessionId); 1409 if (attr != NULL) { 1410 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1411 if (mAttributes != NULL) { 1412 memcpy(mAttributes, attr, sizeof(audio_attributes_t)); 1413 mStreamType = audio_attributes_to_stream_type(attr); 1414 } 1415 } else { 1416 mAttributes = NULL; 1417 } 1418 1419 setMinBufferCount(); 1420} 1421 1422MediaPlayerService::AudioOutput::~AudioOutput() 1423{ 1424 close(); 1425 free(mAttributes); 1426 delete mCallbackData; 1427} 1428 1429//static 1430void MediaPlayerService::AudioOutput::setMinBufferCount() 1431{ 1432 char value[PROPERTY_VALUE_MAX]; 1433 if (property_get("ro.kernel.qemu", value, 0)) { 1434 mIsOnEmulator = true; 1435 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1436 } 1437} 1438 1439// static 1440bool MediaPlayerService::AudioOutput::isOnEmulator() 1441{ 1442 setMinBufferCount(); // benign race wrt other threads 1443 return mIsOnEmulator; 1444} 1445 1446// static 1447int MediaPlayerService::AudioOutput::getMinBufferCount() 1448{ 1449 setMinBufferCount(); // benign race wrt other threads 1450 return mMinBufferCount; 1451} 1452 1453ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1454{ 1455 Mutex::Autolock lock(mLock); 1456 if (mTrack == 0) return NO_INIT; 1457 return mTrack->frameCount() * mFrameSize; 1458} 1459 1460ssize_t MediaPlayerService::AudioOutput::frameCount() const 1461{ 1462 Mutex::Autolock lock(mLock); 1463 if (mTrack == 0) return NO_INIT; 1464 return mTrack->frameCount(); 1465} 1466 1467ssize_t MediaPlayerService::AudioOutput::channelCount() const 1468{ 1469 Mutex::Autolock lock(mLock); 1470 if (mTrack == 0) return NO_INIT; 1471 return mTrack->channelCount(); 1472} 1473 1474ssize_t MediaPlayerService::AudioOutput::frameSize() const 1475{ 1476 Mutex::Autolock lock(mLock); 1477 if (mTrack == 0) return NO_INIT; 1478 return mFrameSize; 1479} 1480 1481uint32_t MediaPlayerService::AudioOutput::latency () const 1482{ 1483 Mutex::Autolock lock(mLock); 1484 if (mTrack == 0) return 0; 1485 return mTrack->latency(); 1486} 1487 1488float MediaPlayerService::AudioOutput::msecsPerFrame() const 1489{ 1490 Mutex::Autolock lock(mLock); 1491 return mMsecsPerFrame; 1492} 1493 1494status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) const 1495{ 1496 Mutex::Autolock lock(mLock); 1497 if (mTrack == 0) return NO_INIT; 1498 return mTrack->getPosition(position); 1499} 1500 1501status_t MediaPlayerService::AudioOutput::getTimestamp(AudioTimestamp &ts) const 1502{ 1503 Mutex::Autolock lock(mLock); 1504 if (mTrack == 0) return NO_INIT; 1505 return mTrack->getTimestamp(ts); 1506} 1507 1508// TODO: Remove unnecessary calls to getPlayedOutDurationUs() 1509// as it acquires locks and may query the audio driver. 1510// 1511// Some calls could conceivably retrieve extrapolated data instead of 1512// accessing getTimestamp() or getPosition() every time a data buffer with 1513// a media time is received. 1514// 1515// Calculate duration of played samples if played at normal rate (i.e., 1.0). 1516int64_t MediaPlayerService::AudioOutput::getPlayedOutDurationUs(int64_t nowUs) const 1517{ 1518 Mutex::Autolock lock(mLock); 1519 if (mTrack == 0 || mSampleRateHz == 0) { 1520 return 0; 1521 } 1522 1523 uint32_t numFramesPlayed; 1524 int64_t numFramesPlayedAt; 1525 AudioTimestamp ts; 1526 static const int64_t kStaleTimestamp100ms = 100000; 1527 1528 status_t res = mTrack->getTimestamp(ts); 1529 if (res == OK) { // case 1: mixing audio tracks and offloaded tracks. 1530 numFramesPlayed = ts.mPosition; 1531 numFramesPlayedAt = ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000; 1532 const int64_t timestampAge = nowUs - numFramesPlayedAt; 1533 if (timestampAge > kStaleTimestamp100ms) { 1534 // This is an audio FIXME. 1535 // getTimestamp returns a timestamp which may come from audio mixing threads. 1536 // After pausing, the MixerThread may go idle, thus the mTime estimate may 1537 // become stale. Assuming that the MixerThread runs 20ms, with FastMixer at 5ms, 1538 // the max latency should be about 25ms with an average around 12ms (to be verified). 1539 // For safety we use 100ms. 1540 ALOGV("getTimestamp: returned stale timestamp nowUs(%lld) numFramesPlayedAt(%lld)", 1541 (long long)nowUs, (long long)numFramesPlayedAt); 1542 numFramesPlayedAt = nowUs - kStaleTimestamp100ms; 1543 } 1544 //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAt); 1545 } else if (res == WOULD_BLOCK) { // case 2: transitory state on start of a new track 1546 numFramesPlayed = 0; 1547 numFramesPlayedAt = nowUs; 1548 //ALOGD("getTimestamp: WOULD_BLOCK %d %lld", 1549 // numFramesPlayed, (long long)numFramesPlayedAt); 1550 } else { // case 3: transitory at new track or audio fast tracks. 1551 res = mTrack->getPosition(&numFramesPlayed); 1552 CHECK_EQ(res, (status_t)OK); 1553 numFramesPlayedAt = nowUs; 1554 numFramesPlayedAt += 1000LL * mTrack->latency() / 2; /* XXX */ 1555 //ALOGD("getPosition: %u %lld", numFramesPlayed, (long long)numFramesPlayedAt); 1556 } 1557 1558 // CHECK_EQ(numFramesPlayed & (1 << 31), 0); // can't be negative until 12.4 hrs, test 1559 // TODO: remove the (int32_t) casting below as it may overflow at 12.4 hours. 1560 int64_t durationUs = (int64_t)((int32_t)numFramesPlayed * 1000000LL / mSampleRateHz) 1561 + nowUs - numFramesPlayedAt; 1562 if (durationUs < 0) { 1563 // Occurs when numFramesPlayed position is very small and the following: 1564 // (1) In case 1, the time nowUs is computed before getTimestamp() is called and 1565 // numFramesPlayedAt is greater than nowUs by time more than numFramesPlayed. 1566 // (2) In case 3, using getPosition and adding mAudioSink->latency() to 1567 // numFramesPlayedAt, by a time amount greater than numFramesPlayed. 1568 // 1569 // Both of these are transitory conditions. 1570 ALOGV("getPlayedOutDurationUs: negative duration %lld set to zero", (long long)durationUs); 1571 durationUs = 0; 1572 } 1573 ALOGV("getPlayedOutDurationUs(%lld) nowUs(%lld) frames(%u) framesAt(%lld)", 1574 (long long)durationUs, (long long)nowUs, numFramesPlayed, (long long)numFramesPlayedAt); 1575 return durationUs; 1576} 1577 1578status_t MediaPlayerService::AudioOutput::getFramesWritten(uint32_t *frameswritten) const 1579{ 1580 Mutex::Autolock lock(mLock); 1581 if (mTrack == 0) return NO_INIT; 1582 ExtendedTimestamp ets; 1583 status_t status = mTrack->getTimestamp(&ets); 1584 if (status == OK || status == WOULD_BLOCK) { 1585 *frameswritten = (uint32_t)ets.mPosition[ExtendedTimestamp::LOCATION_CLIENT]; 1586 } 1587 return status; 1588} 1589 1590status_t MediaPlayerService::AudioOutput::setParameters(const String8& keyValuePairs) 1591{ 1592 Mutex::Autolock lock(mLock); 1593 if (mTrack == 0) return NO_INIT; 1594 return mTrack->setParameters(keyValuePairs); 1595} 1596 1597String8 MediaPlayerService::AudioOutput::getParameters(const String8& keys) 1598{ 1599 Mutex::Autolock lock(mLock); 1600 if (mTrack == 0) return String8::empty(); 1601 return mTrack->getParameters(keys); 1602} 1603 1604void MediaPlayerService::AudioOutput::setAudioAttributes(const audio_attributes_t * attributes) { 1605 Mutex::Autolock lock(mLock); 1606 if (attributes == NULL) { 1607 free(mAttributes); 1608 mAttributes = NULL; 1609 } else { 1610 if (mAttributes == NULL) { 1611 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1612 } 1613 memcpy(mAttributes, attributes, sizeof(audio_attributes_t)); 1614 mStreamType = audio_attributes_to_stream_type(attributes); 1615 } 1616} 1617 1618void MediaPlayerService::AudioOutput::setAudioStreamType(audio_stream_type_t streamType) 1619{ 1620 Mutex::Autolock lock(mLock); 1621 // do not allow direct stream type modification if attributes have been set 1622 if (mAttributes == NULL) { 1623 mStreamType = streamType; 1624 } 1625} 1626 1627void MediaPlayerService::AudioOutput::deleteRecycledTrack_l() 1628{ 1629 ALOGV("deleteRecycledTrack_l"); 1630 if (mRecycledTrack != 0) { 1631 1632 if (mCallbackData != NULL) { 1633 mCallbackData->setOutput(NULL); 1634 mCallbackData->endTrackSwitch(); 1635 } 1636 1637 if ((mRecycledTrack->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) { 1638 int32_t msec = 0; 1639 if (!mRecycledTrack->stopped()) { // check if active 1640 (void)mRecycledTrack->pendingDuration(&msec); 1641 } 1642 mRecycledTrack->stop(); // ensure full data drain 1643 ALOGD("deleting recycled track, waiting for data drain (%d msec)", msec); 1644 if (msec > 0) { 1645 static const int32_t WAIT_LIMIT_MS = 3000; 1646 if (msec > WAIT_LIMIT_MS) { 1647 msec = WAIT_LIMIT_MS; 1648 } 1649 usleep(msec * 1000LL); 1650 } 1651 } 1652 // An offloaded track isn't flushed because the STREAM_END is reported 1653 // slightly prematurely to allow time for the gapless track switch 1654 // but this means that if we decide not to recycle the track there 1655 // could be a small amount of residual data still playing. We leave 1656 // AudioFlinger to drain the track. 1657 1658 mRecycledTrack.clear(); 1659 close_l(); 1660 delete mCallbackData; 1661 mCallbackData = NULL; 1662 } 1663} 1664 1665void MediaPlayerService::AudioOutput::close_l() 1666{ 1667 mTrack.clear(); 1668} 1669 1670status_t MediaPlayerService::AudioOutput::open( 1671 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 1672 audio_format_t format, int bufferCount, 1673 AudioCallback cb, void *cookie, 1674 audio_output_flags_t flags, 1675 const audio_offload_info_t *offloadInfo, 1676 bool doNotReconnect, 1677 uint32_t suggestedFrameCount) 1678{ 1679 ALOGV("open(%u, %d, 0x%x, 0x%x, %d, %d 0x%x)", sampleRate, channelCount, channelMask, 1680 format, bufferCount, mSessionId, flags); 1681 1682 // offloading is only supported in callback mode for now. 1683 // offloadInfo must be present if offload flag is set 1684 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) && 1685 ((cb == NULL) || (offloadInfo == NULL))) { 1686 return BAD_VALUE; 1687 } 1688 1689 // compute frame count for the AudioTrack internal buffer 1690 size_t frameCount; 1691 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1692 frameCount = 0; // AudioTrack will get frame count from AudioFlinger 1693 } else { 1694 // try to estimate the buffer processing fetch size from AudioFlinger. 1695 // framesPerBuffer is approximate and generally correct, except when it's not :-). 1696 uint32_t afSampleRate; 1697 size_t afFrameCount; 1698 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1699 return NO_INIT; 1700 } 1701 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1702 return NO_INIT; 1703 } 1704 const size_t framesPerBuffer = 1705 (unsigned long long)sampleRate * afFrameCount / afSampleRate; 1706 1707 if (bufferCount == 0) { 1708 // use suggestedFrameCount 1709 bufferCount = (suggestedFrameCount + framesPerBuffer - 1) / framesPerBuffer; 1710 } 1711 // Check argument bufferCount against the mininum buffer count 1712 if (bufferCount != 0 && bufferCount < mMinBufferCount) { 1713 ALOGV("bufferCount (%d) increased to %d", bufferCount, mMinBufferCount); 1714 bufferCount = mMinBufferCount; 1715 } 1716 // if frameCount is 0, then AudioTrack will get frame count from AudioFlinger 1717 // which will be the minimum size permitted. 1718 frameCount = bufferCount * framesPerBuffer; 1719 } 1720 1721 if (channelMask == CHANNEL_MASK_USE_CHANNEL_ORDER) { 1722 channelMask = audio_channel_out_mask_from_count(channelCount); 1723 if (0 == channelMask) { 1724 ALOGE("open() error, can\'t derive mask for %d audio channels", channelCount); 1725 return NO_INIT; 1726 } 1727 } 1728 1729 Mutex::Autolock lock(mLock); 1730 mCallback = cb; 1731 mCallbackCookie = cookie; 1732 1733 // Check whether we can recycle the track 1734 bool reuse = false; 1735 bool bothOffloaded = false; 1736 1737 if (mRecycledTrack != 0) { 1738 // check whether we are switching between two offloaded tracks 1739 bothOffloaded = (flags & mRecycledTrack->getFlags() 1740 & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; 1741 1742 // check if the existing track can be reused as-is, or if a new track needs to be created. 1743 reuse = true; 1744 1745 if ((mCallbackData == NULL && mCallback != NULL) || 1746 (mCallbackData != NULL && mCallback == NULL)) { 1747 // recycled track uses callbacks but the caller wants to use writes, or vice versa 1748 ALOGV("can't chain callback and write"); 1749 reuse = false; 1750 } else if ((mRecycledTrack->getSampleRate() != sampleRate) || 1751 (mRecycledTrack->channelCount() != (uint32_t)channelCount) ) { 1752 ALOGV("samplerate, channelcount differ: %u/%u Hz, %u/%d ch", 1753 mRecycledTrack->getSampleRate(), sampleRate, 1754 mRecycledTrack->channelCount(), channelCount); 1755 reuse = false; 1756 } else if (flags != mFlags) { 1757 ALOGV("output flags differ %08x/%08x", flags, mFlags); 1758 reuse = false; 1759 } else if (mRecycledTrack->format() != format) { 1760 reuse = false; 1761 } 1762 } else { 1763 ALOGV("no track available to recycle"); 1764 } 1765 1766 ALOGV_IF(bothOffloaded, "both tracks offloaded"); 1767 1768 // If we can't recycle and both tracks are offloaded 1769 // we must close the previous output before opening a new one 1770 if (bothOffloaded && !reuse) { 1771 ALOGV("both offloaded and not recycling"); 1772 deleteRecycledTrack_l(); 1773 } 1774 1775 sp<AudioTrack> t; 1776 CallbackData *newcbd = NULL; 1777 1778 // We don't attempt to create a new track if we are recycling an 1779 // offloaded track. But, if we are recycling a non-offloaded or we 1780 // are switching where one is offloaded and one isn't then we create 1781 // the new track in advance so that we can read additional stream info 1782 1783 if (!(reuse && bothOffloaded)) { 1784 ALOGV("creating new AudioTrack"); 1785 1786 if (mCallback != NULL) { 1787 newcbd = new CallbackData(this); 1788 t = new AudioTrack( 1789 mStreamType, 1790 sampleRate, 1791 format, 1792 channelMask, 1793 frameCount, 1794 flags, 1795 CallbackWrapper, 1796 newcbd, 1797 0, // notification frames 1798 mSessionId, 1799 AudioTrack::TRANSFER_CALLBACK, 1800 offloadInfo, 1801 mUid, 1802 mPid, 1803 mAttributes, 1804 doNotReconnect); 1805 } else { 1806 // TODO: Due to buffer memory concerns, we use a max target playback speed 1807 // based on mPlaybackRate at the time of open (instead of kMaxRequiredSpeed), 1808 // also clamping the target speed to 1.0 <= targetSpeed <= kMaxRequiredSpeed. 1809 const float targetSpeed = 1810 std::min(std::max(mPlaybackRate.mSpeed, 1.0f), kMaxRequiredSpeed); 1811 ALOGW_IF(targetSpeed != mPlaybackRate.mSpeed, 1812 "track target speed:%f clamped from playback speed:%f", 1813 targetSpeed, mPlaybackRate.mSpeed); 1814 t = new AudioTrack( 1815 mStreamType, 1816 sampleRate, 1817 format, 1818 channelMask, 1819 frameCount, 1820 flags, 1821 NULL, // callback 1822 NULL, // user data 1823 0, // notification frames 1824 mSessionId, 1825 AudioTrack::TRANSFER_DEFAULT, 1826 NULL, // offload info 1827 mUid, 1828 mPid, 1829 mAttributes, 1830 doNotReconnect, 1831 targetSpeed); 1832 } 1833 1834 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1835 ALOGE("Unable to create audio track"); 1836 delete newcbd; 1837 // t goes out of scope, so reference count drops to zero 1838 return NO_INIT; 1839 } else { 1840 // successful AudioTrack initialization implies a legacy stream type was generated 1841 // from the audio attributes 1842 mStreamType = t->streamType(); 1843 } 1844 } 1845 1846 if (reuse) { 1847 CHECK(mRecycledTrack != NULL); 1848 1849 if (!bothOffloaded) { 1850 if (mRecycledTrack->frameCount() != t->frameCount()) { 1851 ALOGV("framecount differs: %zu/%zu frames", 1852 mRecycledTrack->frameCount(), t->frameCount()); 1853 reuse = false; 1854 } 1855 } 1856 1857 if (reuse) { 1858 ALOGV("chaining to next output and recycling track"); 1859 close_l(); 1860 mTrack = mRecycledTrack; 1861 mRecycledTrack.clear(); 1862 if (mCallbackData != NULL) { 1863 mCallbackData->setOutput(this); 1864 } 1865 delete newcbd; 1866 return updateTrack(); 1867 } 1868 } 1869 1870 // we're not going to reuse the track, unblock and flush it 1871 // this was done earlier if both tracks are offloaded 1872 if (!bothOffloaded) { 1873 deleteRecycledTrack_l(); 1874 } 1875 1876 CHECK((t != NULL) && ((mCallback == NULL) || (newcbd != NULL))); 1877 1878 mCallbackData = newcbd; 1879 ALOGV("setVolume"); 1880 t->setVolume(mLeftVolume, mRightVolume); 1881 1882 mSampleRateHz = sampleRate; 1883 mFlags = flags; 1884 mMsecsPerFrame = 1E3f / (mPlaybackRate.mSpeed * sampleRate); 1885 mFrameSize = t->frameSize(); 1886 mTrack = t; 1887 1888 return updateTrack(); 1889} 1890 1891status_t MediaPlayerService::AudioOutput::updateTrack() { 1892 if (mTrack == NULL) { 1893 return NO_ERROR; 1894 } 1895 1896 status_t res = NO_ERROR; 1897 // Note some output devices may give us a direct track even though we don't specify it. 1898 // Example: Line application b/17459982. 1899 if ((mTrack->getFlags() 1900 & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD | AUDIO_OUTPUT_FLAG_DIRECT)) == 0) { 1901 res = mTrack->setPlaybackRate(mPlaybackRate); 1902 if (res == NO_ERROR) { 1903 mTrack->setAuxEffectSendLevel(mSendLevel); 1904 res = mTrack->attachAuxEffect(mAuxEffectId); 1905 } 1906 } 1907 ALOGV("updateTrack() DONE status %d", res); 1908 return res; 1909} 1910 1911status_t MediaPlayerService::AudioOutput::start() 1912{ 1913 ALOGV("start"); 1914 Mutex::Autolock lock(mLock); 1915 if (mCallbackData != NULL) { 1916 mCallbackData->endTrackSwitch(); 1917 } 1918 if (mTrack != 0) { 1919 mTrack->setVolume(mLeftVolume, mRightVolume); 1920 mTrack->setAuxEffectSendLevel(mSendLevel); 1921 return mTrack->start(); 1922 } 1923 return NO_INIT; 1924} 1925 1926void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) { 1927 Mutex::Autolock lock(mLock); 1928 mNextOutput = nextOutput; 1929} 1930 1931void MediaPlayerService::AudioOutput::switchToNextOutput() { 1932 ALOGV("switchToNextOutput"); 1933 1934 // Try to acquire the callback lock before moving track (without incurring deadlock). 1935 const unsigned kMaxSwitchTries = 100; 1936 Mutex::Autolock lock(mLock); 1937 for (unsigned tries = 0;;) { 1938 if (mTrack == 0) { 1939 return; 1940 } 1941 if (mNextOutput != NULL && mNextOutput != this) { 1942 if (mCallbackData != NULL) { 1943 // two alternative approaches 1944#if 1 1945 CallbackData *callbackData = mCallbackData; 1946 mLock.unlock(); 1947 // proper acquisition sequence 1948 callbackData->lock(); 1949 mLock.lock(); 1950 // Caution: it is unlikely that someone deleted our callback or changed our target 1951 if (callbackData != mCallbackData || mNextOutput == NULL || mNextOutput == this) { 1952 // fatal if we are starved out. 1953 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries, 1954 "switchToNextOutput() cannot obtain correct lock sequence"); 1955 callbackData->unlock(); 1956 continue; 1957 } 1958 callbackData->mSwitching = true; // begin track switch 1959 callbackData->setOutput(NULL); 1960#else 1961 // tryBeginTrackSwitch() returns false if the callback has the lock. 1962 if (!mCallbackData->tryBeginTrackSwitch()) { 1963 // fatal if we are starved out. 1964 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries, 1965 "switchToNextOutput() cannot obtain callback lock"); 1966 mLock.unlock(); 1967 usleep(5 * 1000 /* usec */); // allow callback to use AudioOutput 1968 mLock.lock(); 1969 continue; 1970 } 1971#endif 1972 } 1973 1974 Mutex::Autolock nextLock(mNextOutput->mLock); 1975 1976 // If the next output track is not NULL, then it has been 1977 // opened already for playback. 1978 // This is possible even without the next player being started, 1979 // for example, the next player could be prepared and seeked. 1980 // 1981 // Presuming it isn't advisable to force the track over. 1982 if (mNextOutput->mTrack == NULL) { 1983 ALOGD("Recycling track for gapless playback"); 1984 delete mNextOutput->mCallbackData; 1985 mNextOutput->mCallbackData = mCallbackData; 1986 mNextOutput->mRecycledTrack = mTrack; 1987 mNextOutput->mSampleRateHz = mSampleRateHz; 1988 mNextOutput->mMsecsPerFrame = mMsecsPerFrame; 1989 mNextOutput->mFlags = mFlags; 1990 mNextOutput->mFrameSize = mFrameSize; 1991 close_l(); 1992 mCallbackData = NULL; // destruction handled by mNextOutput 1993 } else { 1994 ALOGW("Ignoring gapless playback because next player has already started"); 1995 // remove track in case resource needed for future players. 1996 if (mCallbackData != NULL) { 1997 mCallbackData->endTrackSwitch(); // release lock for callbacks before close. 1998 } 1999 close_l(); 2000 } 2001 } 2002 break; 2003 } 2004} 2005 2006ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size, bool blocking) 2007{ 2008 Mutex::Autolock lock(mLock); 2009 LOG_ALWAYS_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 2010 2011 //ALOGV("write(%p, %u)", buffer, size); 2012 if (mTrack != 0) { 2013 return mTrack->write(buffer, size, blocking); 2014 } 2015 return NO_INIT; 2016} 2017 2018void MediaPlayerService::AudioOutput::stop() 2019{ 2020 ALOGV("stop"); 2021 Mutex::Autolock lock(mLock); 2022 if (mTrack != 0) mTrack->stop(); 2023} 2024 2025void MediaPlayerService::AudioOutput::flush() 2026{ 2027 ALOGV("flush"); 2028 Mutex::Autolock lock(mLock); 2029 if (mTrack != 0) mTrack->flush(); 2030} 2031 2032void MediaPlayerService::AudioOutput::pause() 2033{ 2034 ALOGV("pause"); 2035 Mutex::Autolock lock(mLock); 2036 if (mTrack != 0) mTrack->pause(); 2037} 2038 2039void MediaPlayerService::AudioOutput::close() 2040{ 2041 ALOGV("close"); 2042 sp<AudioTrack> track; 2043 { 2044 Mutex::Autolock lock(mLock); 2045 track = mTrack; 2046 close_l(); // clears mTrack 2047 } 2048 // destruction of the track occurs outside of mutex. 2049} 2050 2051void MediaPlayerService::AudioOutput::setVolume(float left, float right) 2052{ 2053 ALOGV("setVolume(%f, %f)", left, right); 2054 Mutex::Autolock lock(mLock); 2055 mLeftVolume = left; 2056 mRightVolume = right; 2057 if (mTrack != 0) { 2058 mTrack->setVolume(left, right); 2059 } 2060} 2061 2062status_t MediaPlayerService::AudioOutput::setPlaybackRate(const AudioPlaybackRate &rate) 2063{ 2064 ALOGV("setPlaybackRate(%f %f %d %d)", 2065 rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode); 2066 Mutex::Autolock lock(mLock); 2067 if (mTrack == 0) { 2068 // remember rate so that we can set it when the track is opened 2069 mPlaybackRate = rate; 2070 return OK; 2071 } 2072 status_t res = mTrack->setPlaybackRate(rate); 2073 if (res != NO_ERROR) { 2074 return res; 2075 } 2076 // rate.mSpeed is always greater than 0 if setPlaybackRate succeeded 2077 CHECK_GT(rate.mSpeed, 0.f); 2078 mPlaybackRate = rate; 2079 if (mSampleRateHz != 0) { 2080 mMsecsPerFrame = 1E3f / (rate.mSpeed * mSampleRateHz); 2081 } 2082 return res; 2083} 2084 2085status_t MediaPlayerService::AudioOutput::getPlaybackRate(AudioPlaybackRate *rate) 2086{ 2087 ALOGV("setPlaybackRate"); 2088 Mutex::Autolock lock(mLock); 2089 if (mTrack == 0) { 2090 return NO_INIT; 2091 } 2092 *rate = mTrack->getPlaybackRate(); 2093 return NO_ERROR; 2094} 2095 2096status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level) 2097{ 2098 ALOGV("setAuxEffectSendLevel(%f)", level); 2099 Mutex::Autolock lock(mLock); 2100 mSendLevel = level; 2101 if (mTrack != 0) { 2102 return mTrack->setAuxEffectSendLevel(level); 2103 } 2104 return NO_ERROR; 2105} 2106 2107status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId) 2108{ 2109 ALOGV("attachAuxEffect(%d)", effectId); 2110 Mutex::Autolock lock(mLock); 2111 mAuxEffectId = effectId; 2112 if (mTrack != 0) { 2113 return mTrack->attachAuxEffect(effectId); 2114 } 2115 return NO_ERROR; 2116} 2117 2118// static 2119void MediaPlayerService::AudioOutput::CallbackWrapper( 2120 int event, void *cookie, void *info) { 2121 //ALOGV("callbackwrapper"); 2122 CallbackData *data = (CallbackData*)cookie; 2123 // lock to ensure we aren't caught in the middle of a track switch. 2124 data->lock(); 2125 AudioOutput *me = data->getOutput(); 2126 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 2127 if (me == NULL) { 2128 // no output set, likely because the track was scheduled to be reused 2129 // by another player, but the format turned out to be incompatible. 2130 data->unlock(); 2131 if (buffer != NULL) { 2132 buffer->size = 0; 2133 } 2134 return; 2135 } 2136 2137 switch(event) { 2138 case AudioTrack::EVENT_MORE_DATA: { 2139 size_t actualSize = (*me->mCallback)( 2140 me, buffer->raw, buffer->size, me->mCallbackCookie, 2141 CB_EVENT_FILL_BUFFER); 2142 2143 // Log when no data is returned from the callback. 2144 // (1) We may have no data (especially with network streaming sources). 2145 // (2) We may have reached the EOS and the audio track is not stopped yet. 2146 // Note that AwesomePlayer/AudioPlayer will only return zero size when it reaches the EOS. 2147 // NuPlayerRenderer will return zero when it doesn't have data (it doesn't block to fill). 2148 // 2149 // This is a benign busy-wait, with the next data request generated 10 ms or more later; 2150 // nevertheless for power reasons, we don't want to see too many of these. 2151 2152 ALOGV_IF(actualSize == 0 && buffer->size > 0, "callbackwrapper: empty buffer returned"); 2153 2154 buffer->size = actualSize; 2155 } break; 2156 2157 case AudioTrack::EVENT_STREAM_END: 2158 // currently only occurs for offloaded callbacks 2159 ALOGV("callbackwrapper: deliver EVENT_STREAM_END"); 2160 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 2161 me->mCallbackCookie, CB_EVENT_STREAM_END); 2162 break; 2163 2164 case AudioTrack::EVENT_NEW_IAUDIOTRACK : 2165 ALOGV("callbackwrapper: deliver EVENT_TEAR_DOWN"); 2166 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 2167 me->mCallbackCookie, CB_EVENT_TEAR_DOWN); 2168 break; 2169 2170 case AudioTrack::EVENT_UNDERRUN: 2171 // This occurs when there is no data available, typically 2172 // when there is a failure to supply data to the AudioTrack. It can also 2173 // occur in non-offloaded mode when the audio device comes out of standby. 2174 // 2175 // If an AudioTrack underruns it outputs silence. Since this happens suddenly 2176 // it may sound like an audible pop or glitch. 2177 // 2178 // The underrun event is sent once per track underrun; the condition is reset 2179 // when more data is sent to the AudioTrack. 2180 ALOGD("callbackwrapper: EVENT_UNDERRUN (discarded)"); 2181 break; 2182 2183 default: 2184 ALOGE("received unknown event type: %d inside CallbackWrapper !", event); 2185 } 2186 2187 data->unlock(); 2188} 2189 2190audio_session_t MediaPlayerService::AudioOutput::getSessionId() const 2191{ 2192 Mutex::Autolock lock(mLock); 2193 return mSessionId; 2194} 2195 2196uint32_t MediaPlayerService::AudioOutput::getSampleRate() const 2197{ 2198 Mutex::Autolock lock(mLock); 2199 if (mTrack == 0) return 0; 2200 return mTrack->getSampleRate(); 2201} 2202 2203int64_t MediaPlayerService::AudioOutput::getBufferDurationInUs() const 2204{ 2205 Mutex::Autolock lock(mLock); 2206 if (mTrack == 0) { 2207 return 0; 2208 } 2209 int64_t duration; 2210 if (mTrack->getBufferDurationInUs(&duration) != OK) { 2211 return 0; 2212 } 2213 return duration; 2214} 2215 2216//////////////////////////////////////////////////////////////////////////////// 2217 2218struct CallbackThread : public Thread { 2219 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 2220 MediaPlayerBase::AudioSink::AudioCallback cb, 2221 void *cookie); 2222 2223protected: 2224 virtual ~CallbackThread(); 2225 2226 virtual bool threadLoop(); 2227 2228private: 2229 wp<MediaPlayerBase::AudioSink> mSink; 2230 MediaPlayerBase::AudioSink::AudioCallback mCallback; 2231 void *mCookie; 2232 void *mBuffer; 2233 size_t mBufferSize; 2234 2235 CallbackThread(const CallbackThread &); 2236 CallbackThread &operator=(const CallbackThread &); 2237}; 2238 2239CallbackThread::CallbackThread( 2240 const wp<MediaPlayerBase::AudioSink> &sink, 2241 MediaPlayerBase::AudioSink::AudioCallback cb, 2242 void *cookie) 2243 : mSink(sink), 2244 mCallback(cb), 2245 mCookie(cookie), 2246 mBuffer(NULL), 2247 mBufferSize(0) { 2248} 2249 2250CallbackThread::~CallbackThread() { 2251 if (mBuffer) { 2252 free(mBuffer); 2253 mBuffer = NULL; 2254 } 2255} 2256 2257bool CallbackThread::threadLoop() { 2258 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 2259 if (sink == NULL) { 2260 return false; 2261 } 2262 2263 if (mBuffer == NULL) { 2264 mBufferSize = sink->bufferSize(); 2265 mBuffer = malloc(mBufferSize); 2266 } 2267 2268 size_t actualSize = 2269 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie, 2270 MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER); 2271 2272 if (actualSize > 0) { 2273 sink->write(mBuffer, actualSize); 2274 // Could return false on sink->write() error or short count. 2275 // Not necessarily appropriate but would work for AudioCache behavior. 2276 } 2277 2278 return true; 2279} 2280 2281//////////////////////////////////////////////////////////////////////////////// 2282 2283void MediaPlayerService::addBatteryData(uint32_t params) 2284{ 2285 Mutex::Autolock lock(mLock); 2286 2287 int32_t time = systemTime() / 1000000L; 2288 2289 // change audio output devices. This notification comes from AudioFlinger 2290 if ((params & kBatteryDataSpeakerOn) 2291 || (params & kBatteryDataOtherAudioDeviceOn)) { 2292 2293 int deviceOn[NUM_AUDIO_DEVICES]; 2294 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2295 deviceOn[i] = 0; 2296 } 2297 2298 if ((params & kBatteryDataSpeakerOn) 2299 && (params & kBatteryDataOtherAudioDeviceOn)) { 2300 deviceOn[SPEAKER_AND_OTHER] = 1; 2301 } else if (params & kBatteryDataSpeakerOn) { 2302 deviceOn[SPEAKER] = 1; 2303 } else { 2304 deviceOn[OTHER_AUDIO_DEVICE] = 1; 2305 } 2306 2307 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2308 if (mBatteryAudio.deviceOn[i] != deviceOn[i]){ 2309 2310 if (mBatteryAudio.refCount > 0) { // if playing audio 2311 if (!deviceOn[i]) { 2312 mBatteryAudio.lastTime[i] += time; 2313 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2314 mBatteryAudio.lastTime[i] = 0; 2315 } else { 2316 mBatteryAudio.lastTime[i] = 0 - time; 2317 } 2318 } 2319 2320 mBatteryAudio.deviceOn[i] = deviceOn[i]; 2321 } 2322 } 2323 return; 2324 } 2325 2326 // an audio stream is started 2327 if (params & kBatteryDataAudioFlingerStart) { 2328 // record the start time only if currently no other audio 2329 // is being played 2330 if (mBatteryAudio.refCount == 0) { 2331 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2332 if (mBatteryAudio.deviceOn[i]) { 2333 mBatteryAudio.lastTime[i] -= time; 2334 } 2335 } 2336 } 2337 2338 mBatteryAudio.refCount ++; 2339 return; 2340 2341 } else if (params & kBatteryDataAudioFlingerStop) { 2342 if (mBatteryAudio.refCount <= 0) { 2343 ALOGW("Battery track warning: refCount is <= 0"); 2344 return; 2345 } 2346 2347 // record the stop time only if currently this is the only 2348 // audio being played 2349 if (mBatteryAudio.refCount == 1) { 2350 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2351 if (mBatteryAudio.deviceOn[i]) { 2352 mBatteryAudio.lastTime[i] += time; 2353 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2354 mBatteryAudio.lastTime[i] = 0; 2355 } 2356 } 2357 } 2358 2359 mBatteryAudio.refCount --; 2360 return; 2361 } 2362 2363 int uid = IPCThreadState::self()->getCallingUid(); 2364 if (uid == AID_MEDIA) { 2365 return; 2366 } 2367 int index = mBatteryData.indexOfKey(uid); 2368 2369 if (index < 0) { // create a new entry for this UID 2370 BatteryUsageInfo info; 2371 info.audioTotalTime = 0; 2372 info.videoTotalTime = 0; 2373 info.audioLastTime = 0; 2374 info.videoLastTime = 0; 2375 info.refCount = 0; 2376 2377 if (mBatteryData.add(uid, info) == NO_MEMORY) { 2378 ALOGE("Battery track error: no memory for new app"); 2379 return; 2380 } 2381 } 2382 2383 BatteryUsageInfo &info = mBatteryData.editValueFor(uid); 2384 2385 if (params & kBatteryDataCodecStarted) { 2386 if (params & kBatteryDataTrackAudio) { 2387 info.audioLastTime -= time; 2388 info.refCount ++; 2389 } 2390 if (params & kBatteryDataTrackVideo) { 2391 info.videoLastTime -= time; 2392 info.refCount ++; 2393 } 2394 } else { 2395 if (info.refCount == 0) { 2396 ALOGW("Battery track warning: refCount is already 0"); 2397 return; 2398 } else if (info.refCount < 0) { 2399 ALOGE("Battery track error: refCount < 0"); 2400 mBatteryData.removeItem(uid); 2401 return; 2402 } 2403 2404 if (params & kBatteryDataTrackAudio) { 2405 info.audioLastTime += time; 2406 info.refCount --; 2407 } 2408 if (params & kBatteryDataTrackVideo) { 2409 info.videoLastTime += time; 2410 info.refCount --; 2411 } 2412 2413 // no stream is being played by this UID 2414 if (info.refCount == 0) { 2415 info.audioTotalTime += info.audioLastTime; 2416 info.audioLastTime = 0; 2417 info.videoTotalTime += info.videoLastTime; 2418 info.videoLastTime = 0; 2419 } 2420 } 2421} 2422 2423status_t MediaPlayerService::pullBatteryData(Parcel* reply) { 2424 Mutex::Autolock lock(mLock); 2425 2426 // audio output devices usage 2427 int32_t time = systemTime() / 1000000L; //in ms 2428 int32_t totalTime; 2429 2430 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2431 totalTime = mBatteryAudio.totalTime[i]; 2432 2433 if (mBatteryAudio.deviceOn[i] 2434 && (mBatteryAudio.lastTime[i] != 0)) { 2435 int32_t tmpTime = mBatteryAudio.lastTime[i] + time; 2436 totalTime += tmpTime; 2437 } 2438 2439 reply->writeInt32(totalTime); 2440 // reset the total time 2441 mBatteryAudio.totalTime[i] = 0; 2442 } 2443 2444 // codec usage 2445 BatteryUsageInfo info; 2446 int size = mBatteryData.size(); 2447 2448 reply->writeInt32(size); 2449 int i = 0; 2450 2451 while (i < size) { 2452 info = mBatteryData.valueAt(i); 2453 2454 reply->writeInt32(mBatteryData.keyAt(i)); //UID 2455 reply->writeInt32(info.audioTotalTime); 2456 reply->writeInt32(info.videoTotalTime); 2457 2458 info.audioTotalTime = 0; 2459 info.videoTotalTime = 0; 2460 2461 // remove the UID entry where no stream is being played 2462 if (info.refCount <= 0) { 2463 mBatteryData.removeItemsAt(i); 2464 size --; 2465 i --; 2466 } 2467 i++; 2468 } 2469 return NO_ERROR; 2470} 2471} // namespace android 2472