MediaPlayerService.cpp revision 67b6dccfd7b59efa772a3c2c553e7382c8f9f24c
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, bool precise) 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, precise); 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 numFramesPlayedAtUs; 1525 AudioTimestamp ts; 1526 1527 status_t res = mTrack->getTimestamp(ts); 1528 if (res == OK) { // case 1: mixing audio tracks and offloaded tracks. 1529 numFramesPlayed = ts.mPosition; 1530 numFramesPlayedAtUs = ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000; 1531 //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAtUs); 1532 } else if (res == WOULD_BLOCK) { // case 2: transitory state on start of a new track 1533 numFramesPlayed = 0; 1534 numFramesPlayedAtUs = nowUs; 1535 //ALOGD("getTimestamp: WOULD_BLOCK %d %lld", 1536 // numFramesPlayed, (long long)numFramesPlayedAtUs); 1537 } else { // case 3: transitory at new track or audio fast tracks. 1538 res = mTrack->getPosition(&numFramesPlayed); 1539 CHECK_EQ(res, (status_t)OK); 1540 numFramesPlayedAtUs = nowUs; 1541 numFramesPlayedAtUs += 1000LL * mTrack->latency() / 2; /* XXX */ 1542 //ALOGD("getPosition: %u %lld", numFramesPlayed, (long long)numFramesPlayedAtUs); 1543 } 1544 1545 // CHECK_EQ(numFramesPlayed & (1 << 31), 0); // can't be negative until 12.4 hrs, test 1546 // TODO: remove the (int32_t) casting below as it may overflow at 12.4 hours. 1547 int64_t durationUs = (int64_t)((int32_t)numFramesPlayed * 1000000LL / mSampleRateHz) 1548 + nowUs - numFramesPlayedAtUs; 1549 if (durationUs < 0) { 1550 // Occurs when numFramesPlayed position is very small and the following: 1551 // (1) In case 1, the time nowUs is computed before getTimestamp() is called and 1552 // numFramesPlayedAtUs is greater than nowUs by time more than numFramesPlayed. 1553 // (2) In case 3, using getPosition and adding mAudioSink->latency() to 1554 // numFramesPlayedAtUs, by a time amount greater than numFramesPlayed. 1555 // 1556 // Both of these are transitory conditions. 1557 ALOGV("getPlayedOutDurationUs: negative duration %lld set to zero", (long long)durationUs); 1558 durationUs = 0; 1559 } 1560 ALOGV("getPlayedOutDurationUs(%lld) nowUs(%lld) frames(%u) framesAt(%lld)", 1561 (long long)durationUs, (long long)nowUs, 1562 numFramesPlayed, (long long)numFramesPlayedAtUs); 1563 return durationUs; 1564} 1565 1566status_t MediaPlayerService::AudioOutput::getFramesWritten(uint32_t *frameswritten) const 1567{ 1568 Mutex::Autolock lock(mLock); 1569 if (mTrack == 0) return NO_INIT; 1570 ExtendedTimestamp ets; 1571 status_t status = mTrack->getTimestamp(&ets); 1572 if (status == OK || status == WOULD_BLOCK) { 1573 *frameswritten = (uint32_t)ets.mPosition[ExtendedTimestamp::LOCATION_CLIENT]; 1574 } 1575 return status; 1576} 1577 1578status_t MediaPlayerService::AudioOutput::setParameters(const String8& keyValuePairs) 1579{ 1580 Mutex::Autolock lock(mLock); 1581 if (mTrack == 0) return NO_INIT; 1582 return mTrack->setParameters(keyValuePairs); 1583} 1584 1585String8 MediaPlayerService::AudioOutput::getParameters(const String8& keys) 1586{ 1587 Mutex::Autolock lock(mLock); 1588 if (mTrack == 0) return String8::empty(); 1589 return mTrack->getParameters(keys); 1590} 1591 1592void MediaPlayerService::AudioOutput::setAudioAttributes(const audio_attributes_t * attributes) { 1593 Mutex::Autolock lock(mLock); 1594 if (attributes == NULL) { 1595 free(mAttributes); 1596 mAttributes = NULL; 1597 } else { 1598 if (mAttributes == NULL) { 1599 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1600 } 1601 memcpy(mAttributes, attributes, sizeof(audio_attributes_t)); 1602 mStreamType = audio_attributes_to_stream_type(attributes); 1603 } 1604} 1605 1606void MediaPlayerService::AudioOutput::setAudioStreamType(audio_stream_type_t streamType) 1607{ 1608 Mutex::Autolock lock(mLock); 1609 // do not allow direct stream type modification if attributes have been set 1610 if (mAttributes == NULL) { 1611 mStreamType = streamType; 1612 } 1613} 1614 1615void MediaPlayerService::AudioOutput::deleteRecycledTrack_l() 1616{ 1617 ALOGV("deleteRecycledTrack_l"); 1618 if (mRecycledTrack != 0) { 1619 1620 if (mCallbackData != NULL) { 1621 mCallbackData->setOutput(NULL); 1622 mCallbackData->endTrackSwitch(); 1623 } 1624 1625 if ((mRecycledTrack->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) { 1626 int32_t msec = 0; 1627 if (!mRecycledTrack->stopped()) { // check if active 1628 (void)mRecycledTrack->pendingDuration(&msec); 1629 } 1630 mRecycledTrack->stop(); // ensure full data drain 1631 ALOGD("deleting recycled track, waiting for data drain (%d msec)", msec); 1632 if (msec > 0) { 1633 static const int32_t WAIT_LIMIT_MS = 3000; 1634 if (msec > WAIT_LIMIT_MS) { 1635 msec = WAIT_LIMIT_MS; 1636 } 1637 usleep(msec * 1000LL); 1638 } 1639 } 1640 // An offloaded track isn't flushed because the STREAM_END is reported 1641 // slightly prematurely to allow time for the gapless track switch 1642 // but this means that if we decide not to recycle the track there 1643 // could be a small amount of residual data still playing. We leave 1644 // AudioFlinger to drain the track. 1645 1646 mRecycledTrack.clear(); 1647 close_l(); 1648 delete mCallbackData; 1649 mCallbackData = NULL; 1650 } 1651} 1652 1653void MediaPlayerService::AudioOutput::close_l() 1654{ 1655 mTrack.clear(); 1656} 1657 1658status_t MediaPlayerService::AudioOutput::open( 1659 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 1660 audio_format_t format, int bufferCount, 1661 AudioCallback cb, void *cookie, 1662 audio_output_flags_t flags, 1663 const audio_offload_info_t *offloadInfo, 1664 bool doNotReconnect, 1665 uint32_t suggestedFrameCount) 1666{ 1667 ALOGV("open(%u, %d, 0x%x, 0x%x, %d, %d 0x%x)", sampleRate, channelCount, channelMask, 1668 format, bufferCount, mSessionId, flags); 1669 1670 // offloading is only supported in callback mode for now. 1671 // offloadInfo must be present if offload flag is set 1672 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) && 1673 ((cb == NULL) || (offloadInfo == NULL))) { 1674 return BAD_VALUE; 1675 } 1676 1677 // compute frame count for the AudioTrack internal buffer 1678 size_t frameCount; 1679 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1680 frameCount = 0; // AudioTrack will get frame count from AudioFlinger 1681 } else { 1682 // try to estimate the buffer processing fetch size from AudioFlinger. 1683 // framesPerBuffer is approximate and generally correct, except when it's not :-). 1684 uint32_t afSampleRate; 1685 size_t afFrameCount; 1686 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1687 return NO_INIT; 1688 } 1689 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1690 return NO_INIT; 1691 } 1692 const size_t framesPerBuffer = 1693 (unsigned long long)sampleRate * afFrameCount / afSampleRate; 1694 1695 if (bufferCount == 0) { 1696 // use suggestedFrameCount 1697 bufferCount = (suggestedFrameCount + framesPerBuffer - 1) / framesPerBuffer; 1698 } 1699 // Check argument bufferCount against the mininum buffer count 1700 if (bufferCount != 0 && bufferCount < mMinBufferCount) { 1701 ALOGV("bufferCount (%d) increased to %d", bufferCount, mMinBufferCount); 1702 bufferCount = mMinBufferCount; 1703 } 1704 // if frameCount is 0, then AudioTrack will get frame count from AudioFlinger 1705 // which will be the minimum size permitted. 1706 frameCount = bufferCount * framesPerBuffer; 1707 } 1708 1709 if (channelMask == CHANNEL_MASK_USE_CHANNEL_ORDER) { 1710 channelMask = audio_channel_out_mask_from_count(channelCount); 1711 if (0 == channelMask) { 1712 ALOGE("open() error, can\'t derive mask for %d audio channels", channelCount); 1713 return NO_INIT; 1714 } 1715 } 1716 1717 Mutex::Autolock lock(mLock); 1718 mCallback = cb; 1719 mCallbackCookie = cookie; 1720 1721 // Check whether we can recycle the track 1722 bool reuse = false; 1723 bool bothOffloaded = false; 1724 1725 if (mRecycledTrack != 0) { 1726 // check whether we are switching between two offloaded tracks 1727 bothOffloaded = (flags & mRecycledTrack->getFlags() 1728 & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; 1729 1730 // check if the existing track can be reused as-is, or if a new track needs to be created. 1731 reuse = true; 1732 1733 if ((mCallbackData == NULL && mCallback != NULL) || 1734 (mCallbackData != NULL && mCallback == NULL)) { 1735 // recycled track uses callbacks but the caller wants to use writes, or vice versa 1736 ALOGV("can't chain callback and write"); 1737 reuse = false; 1738 } else if ((mRecycledTrack->getSampleRate() != sampleRate) || 1739 (mRecycledTrack->channelCount() != (uint32_t)channelCount) ) { 1740 ALOGV("samplerate, channelcount differ: %u/%u Hz, %u/%d ch", 1741 mRecycledTrack->getSampleRate(), sampleRate, 1742 mRecycledTrack->channelCount(), channelCount); 1743 reuse = false; 1744 } else if (flags != mFlags) { 1745 ALOGV("output flags differ %08x/%08x", flags, mFlags); 1746 reuse = false; 1747 } else if (mRecycledTrack->format() != format) { 1748 reuse = false; 1749 } 1750 } else { 1751 ALOGV("no track available to recycle"); 1752 } 1753 1754 ALOGV_IF(bothOffloaded, "both tracks offloaded"); 1755 1756 // If we can't recycle and both tracks are offloaded 1757 // we must close the previous output before opening a new one 1758 if (bothOffloaded && !reuse) { 1759 ALOGV("both offloaded and not recycling"); 1760 deleteRecycledTrack_l(); 1761 } 1762 1763 sp<AudioTrack> t; 1764 CallbackData *newcbd = NULL; 1765 1766 // We don't attempt to create a new track if we are recycling an 1767 // offloaded track. But, if we are recycling a non-offloaded or we 1768 // are switching where one is offloaded and one isn't then we create 1769 // the new track in advance so that we can read additional stream info 1770 1771 if (!(reuse && bothOffloaded)) { 1772 ALOGV("creating new AudioTrack"); 1773 1774 if (mCallback != NULL) { 1775 newcbd = new CallbackData(this); 1776 t = new AudioTrack( 1777 mStreamType, 1778 sampleRate, 1779 format, 1780 channelMask, 1781 frameCount, 1782 flags, 1783 CallbackWrapper, 1784 newcbd, 1785 0, // notification frames 1786 mSessionId, 1787 AudioTrack::TRANSFER_CALLBACK, 1788 offloadInfo, 1789 mUid, 1790 mPid, 1791 mAttributes, 1792 doNotReconnect); 1793 } else { 1794 // TODO: Due to buffer memory concerns, we use a max target playback speed 1795 // based on mPlaybackRate at the time of open (instead of kMaxRequiredSpeed), 1796 // also clamping the target speed to 1.0 <= targetSpeed <= kMaxRequiredSpeed. 1797 const float targetSpeed = 1798 std::min(std::max(mPlaybackRate.mSpeed, 1.0f), kMaxRequiredSpeed); 1799 ALOGW_IF(targetSpeed != mPlaybackRate.mSpeed, 1800 "track target speed:%f clamped from playback speed:%f", 1801 targetSpeed, mPlaybackRate.mSpeed); 1802 t = new AudioTrack( 1803 mStreamType, 1804 sampleRate, 1805 format, 1806 channelMask, 1807 frameCount, 1808 flags, 1809 NULL, // callback 1810 NULL, // user data 1811 0, // notification frames 1812 mSessionId, 1813 AudioTrack::TRANSFER_DEFAULT, 1814 NULL, // offload info 1815 mUid, 1816 mPid, 1817 mAttributes, 1818 doNotReconnect, 1819 targetSpeed); 1820 } 1821 1822 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1823 ALOGE("Unable to create audio track"); 1824 delete newcbd; 1825 // t goes out of scope, so reference count drops to zero 1826 return NO_INIT; 1827 } else { 1828 // successful AudioTrack initialization implies a legacy stream type was generated 1829 // from the audio attributes 1830 mStreamType = t->streamType(); 1831 } 1832 } 1833 1834 if (reuse) { 1835 CHECK(mRecycledTrack != NULL); 1836 1837 if (!bothOffloaded) { 1838 if (mRecycledTrack->frameCount() != t->frameCount()) { 1839 ALOGV("framecount differs: %zu/%zu frames", 1840 mRecycledTrack->frameCount(), t->frameCount()); 1841 reuse = false; 1842 } 1843 } 1844 1845 if (reuse) { 1846 ALOGV("chaining to next output and recycling track"); 1847 close_l(); 1848 mTrack = mRecycledTrack; 1849 mRecycledTrack.clear(); 1850 if (mCallbackData != NULL) { 1851 mCallbackData->setOutput(this); 1852 } 1853 delete newcbd; 1854 return updateTrack(); 1855 } 1856 } 1857 1858 // we're not going to reuse the track, unblock and flush it 1859 // this was done earlier if both tracks are offloaded 1860 if (!bothOffloaded) { 1861 deleteRecycledTrack_l(); 1862 } 1863 1864 CHECK((t != NULL) && ((mCallback == NULL) || (newcbd != NULL))); 1865 1866 mCallbackData = newcbd; 1867 ALOGV("setVolume"); 1868 t->setVolume(mLeftVolume, mRightVolume); 1869 1870 mSampleRateHz = sampleRate; 1871 mFlags = flags; 1872 mMsecsPerFrame = 1E3f / (mPlaybackRate.mSpeed * sampleRate); 1873 mFrameSize = t->frameSize(); 1874 mTrack = t; 1875 1876 return updateTrack(); 1877} 1878 1879status_t MediaPlayerService::AudioOutput::updateTrack() { 1880 if (mTrack == NULL) { 1881 return NO_ERROR; 1882 } 1883 1884 status_t res = NO_ERROR; 1885 // Note some output devices may give us a direct track even though we don't specify it. 1886 // Example: Line application b/17459982. 1887 if ((mTrack->getFlags() 1888 & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD | AUDIO_OUTPUT_FLAG_DIRECT)) == 0) { 1889 res = mTrack->setPlaybackRate(mPlaybackRate); 1890 if (res == NO_ERROR) { 1891 mTrack->setAuxEffectSendLevel(mSendLevel); 1892 res = mTrack->attachAuxEffect(mAuxEffectId); 1893 } 1894 } 1895 ALOGV("updateTrack() DONE status %d", res); 1896 return res; 1897} 1898 1899status_t MediaPlayerService::AudioOutput::start() 1900{ 1901 ALOGV("start"); 1902 Mutex::Autolock lock(mLock); 1903 if (mCallbackData != NULL) { 1904 mCallbackData->endTrackSwitch(); 1905 } 1906 if (mTrack != 0) { 1907 mTrack->setVolume(mLeftVolume, mRightVolume); 1908 mTrack->setAuxEffectSendLevel(mSendLevel); 1909 return mTrack->start(); 1910 } 1911 return NO_INIT; 1912} 1913 1914void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) { 1915 Mutex::Autolock lock(mLock); 1916 mNextOutput = nextOutput; 1917} 1918 1919void MediaPlayerService::AudioOutput::switchToNextOutput() { 1920 ALOGV("switchToNextOutput"); 1921 1922 // Try to acquire the callback lock before moving track (without incurring deadlock). 1923 const unsigned kMaxSwitchTries = 100; 1924 Mutex::Autolock lock(mLock); 1925 for (unsigned tries = 0;;) { 1926 if (mTrack == 0) { 1927 return; 1928 } 1929 if (mNextOutput != NULL && mNextOutput != this) { 1930 if (mCallbackData != NULL) { 1931 // two alternative approaches 1932#if 1 1933 CallbackData *callbackData = mCallbackData; 1934 mLock.unlock(); 1935 // proper acquisition sequence 1936 callbackData->lock(); 1937 mLock.lock(); 1938 // Caution: it is unlikely that someone deleted our callback or changed our target 1939 if (callbackData != mCallbackData || mNextOutput == NULL || mNextOutput == this) { 1940 // fatal if we are starved out. 1941 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries, 1942 "switchToNextOutput() cannot obtain correct lock sequence"); 1943 callbackData->unlock(); 1944 continue; 1945 } 1946 callbackData->mSwitching = true; // begin track switch 1947 callbackData->setOutput(NULL); 1948#else 1949 // tryBeginTrackSwitch() returns false if the callback has the lock. 1950 if (!mCallbackData->tryBeginTrackSwitch()) { 1951 // fatal if we are starved out. 1952 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries, 1953 "switchToNextOutput() cannot obtain callback lock"); 1954 mLock.unlock(); 1955 usleep(5 * 1000 /* usec */); // allow callback to use AudioOutput 1956 mLock.lock(); 1957 continue; 1958 } 1959#endif 1960 } 1961 1962 Mutex::Autolock nextLock(mNextOutput->mLock); 1963 1964 // If the next output track is not NULL, then it has been 1965 // opened already for playback. 1966 // This is possible even without the next player being started, 1967 // for example, the next player could be prepared and seeked. 1968 // 1969 // Presuming it isn't advisable to force the track over. 1970 if (mNextOutput->mTrack == NULL) { 1971 ALOGD("Recycling track for gapless playback"); 1972 delete mNextOutput->mCallbackData; 1973 mNextOutput->mCallbackData = mCallbackData; 1974 mNextOutput->mRecycledTrack = mTrack; 1975 mNextOutput->mSampleRateHz = mSampleRateHz; 1976 mNextOutput->mMsecsPerFrame = mMsecsPerFrame; 1977 mNextOutput->mFlags = mFlags; 1978 mNextOutput->mFrameSize = mFrameSize; 1979 close_l(); 1980 mCallbackData = NULL; // destruction handled by mNextOutput 1981 } else { 1982 ALOGW("Ignoring gapless playback because next player has already started"); 1983 // remove track in case resource needed for future players. 1984 if (mCallbackData != NULL) { 1985 mCallbackData->endTrackSwitch(); // release lock for callbacks before close. 1986 } 1987 close_l(); 1988 } 1989 } 1990 break; 1991 } 1992} 1993 1994ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size, bool blocking) 1995{ 1996 Mutex::Autolock lock(mLock); 1997 LOG_ALWAYS_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 1998 1999 //ALOGV("write(%p, %u)", buffer, size); 2000 if (mTrack != 0) { 2001 return mTrack->write(buffer, size, blocking); 2002 } 2003 return NO_INIT; 2004} 2005 2006void MediaPlayerService::AudioOutput::stop() 2007{ 2008 ALOGV("stop"); 2009 Mutex::Autolock lock(mLock); 2010 if (mTrack != 0) mTrack->stop(); 2011} 2012 2013void MediaPlayerService::AudioOutput::flush() 2014{ 2015 ALOGV("flush"); 2016 Mutex::Autolock lock(mLock); 2017 if (mTrack != 0) mTrack->flush(); 2018} 2019 2020void MediaPlayerService::AudioOutput::pause() 2021{ 2022 ALOGV("pause"); 2023 Mutex::Autolock lock(mLock); 2024 if (mTrack != 0) mTrack->pause(); 2025} 2026 2027void MediaPlayerService::AudioOutput::close() 2028{ 2029 ALOGV("close"); 2030 sp<AudioTrack> track; 2031 { 2032 Mutex::Autolock lock(mLock); 2033 track = mTrack; 2034 close_l(); // clears mTrack 2035 } 2036 // destruction of the track occurs outside of mutex. 2037} 2038 2039void MediaPlayerService::AudioOutput::setVolume(float left, float right) 2040{ 2041 ALOGV("setVolume(%f, %f)", left, right); 2042 Mutex::Autolock lock(mLock); 2043 mLeftVolume = left; 2044 mRightVolume = right; 2045 if (mTrack != 0) { 2046 mTrack->setVolume(left, right); 2047 } 2048} 2049 2050status_t MediaPlayerService::AudioOutput::setPlaybackRate(const AudioPlaybackRate &rate) 2051{ 2052 ALOGV("setPlaybackRate(%f %f %d %d)", 2053 rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode); 2054 Mutex::Autolock lock(mLock); 2055 if (mTrack == 0) { 2056 // remember rate so that we can set it when the track is opened 2057 mPlaybackRate = rate; 2058 return OK; 2059 } 2060 status_t res = mTrack->setPlaybackRate(rate); 2061 if (res != NO_ERROR) { 2062 return res; 2063 } 2064 // rate.mSpeed is always greater than 0 if setPlaybackRate succeeded 2065 CHECK_GT(rate.mSpeed, 0.f); 2066 mPlaybackRate = rate; 2067 if (mSampleRateHz != 0) { 2068 mMsecsPerFrame = 1E3f / (rate.mSpeed * mSampleRateHz); 2069 } 2070 return res; 2071} 2072 2073status_t MediaPlayerService::AudioOutput::getPlaybackRate(AudioPlaybackRate *rate) 2074{ 2075 ALOGV("setPlaybackRate"); 2076 Mutex::Autolock lock(mLock); 2077 if (mTrack == 0) { 2078 return NO_INIT; 2079 } 2080 *rate = mTrack->getPlaybackRate(); 2081 return NO_ERROR; 2082} 2083 2084status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level) 2085{ 2086 ALOGV("setAuxEffectSendLevel(%f)", level); 2087 Mutex::Autolock lock(mLock); 2088 mSendLevel = level; 2089 if (mTrack != 0) { 2090 return mTrack->setAuxEffectSendLevel(level); 2091 } 2092 return NO_ERROR; 2093} 2094 2095status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId) 2096{ 2097 ALOGV("attachAuxEffect(%d)", effectId); 2098 Mutex::Autolock lock(mLock); 2099 mAuxEffectId = effectId; 2100 if (mTrack != 0) { 2101 return mTrack->attachAuxEffect(effectId); 2102 } 2103 return NO_ERROR; 2104} 2105 2106// static 2107void MediaPlayerService::AudioOutput::CallbackWrapper( 2108 int event, void *cookie, void *info) { 2109 //ALOGV("callbackwrapper"); 2110 CallbackData *data = (CallbackData*)cookie; 2111 // lock to ensure we aren't caught in the middle of a track switch. 2112 data->lock(); 2113 AudioOutput *me = data->getOutput(); 2114 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 2115 if (me == NULL) { 2116 // no output set, likely because the track was scheduled to be reused 2117 // by another player, but the format turned out to be incompatible. 2118 data->unlock(); 2119 if (buffer != NULL) { 2120 buffer->size = 0; 2121 } 2122 return; 2123 } 2124 2125 switch(event) { 2126 case AudioTrack::EVENT_MORE_DATA: { 2127 size_t actualSize = (*me->mCallback)( 2128 me, buffer->raw, buffer->size, me->mCallbackCookie, 2129 CB_EVENT_FILL_BUFFER); 2130 2131 // Log when no data is returned from the callback. 2132 // (1) We may have no data (especially with network streaming sources). 2133 // (2) We may have reached the EOS and the audio track is not stopped yet. 2134 // Note that AwesomePlayer/AudioPlayer will only return zero size when it reaches the EOS. 2135 // NuPlayerRenderer will return zero when it doesn't have data (it doesn't block to fill). 2136 // 2137 // This is a benign busy-wait, with the next data request generated 10 ms or more later; 2138 // nevertheless for power reasons, we don't want to see too many of these. 2139 2140 ALOGV_IF(actualSize == 0 && buffer->size > 0, "callbackwrapper: empty buffer returned"); 2141 2142 buffer->size = actualSize; 2143 } break; 2144 2145 case AudioTrack::EVENT_STREAM_END: 2146 // currently only occurs for offloaded callbacks 2147 ALOGV("callbackwrapper: deliver EVENT_STREAM_END"); 2148 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 2149 me->mCallbackCookie, CB_EVENT_STREAM_END); 2150 break; 2151 2152 case AudioTrack::EVENT_NEW_IAUDIOTRACK : 2153 ALOGV("callbackwrapper: deliver EVENT_TEAR_DOWN"); 2154 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 2155 me->mCallbackCookie, CB_EVENT_TEAR_DOWN); 2156 break; 2157 2158 case AudioTrack::EVENT_UNDERRUN: 2159 // This occurs when there is no data available, typically 2160 // when there is a failure to supply data to the AudioTrack. It can also 2161 // occur in non-offloaded mode when the audio device comes out of standby. 2162 // 2163 // If an AudioTrack underruns it outputs silence. Since this happens suddenly 2164 // it may sound like an audible pop or glitch. 2165 // 2166 // The underrun event is sent once per track underrun; the condition is reset 2167 // when more data is sent to the AudioTrack. 2168 ALOGD("callbackwrapper: EVENT_UNDERRUN (discarded)"); 2169 break; 2170 2171 default: 2172 ALOGE("received unknown event type: %d inside CallbackWrapper !", event); 2173 } 2174 2175 data->unlock(); 2176} 2177 2178audio_session_t MediaPlayerService::AudioOutput::getSessionId() const 2179{ 2180 Mutex::Autolock lock(mLock); 2181 return mSessionId; 2182} 2183 2184uint32_t MediaPlayerService::AudioOutput::getSampleRate() const 2185{ 2186 Mutex::Autolock lock(mLock); 2187 if (mTrack == 0) return 0; 2188 return mTrack->getSampleRate(); 2189} 2190 2191int64_t MediaPlayerService::AudioOutput::getBufferDurationInUs() const 2192{ 2193 Mutex::Autolock lock(mLock); 2194 if (mTrack == 0) { 2195 return 0; 2196 } 2197 int64_t duration; 2198 if (mTrack->getBufferDurationInUs(&duration) != OK) { 2199 return 0; 2200 } 2201 return duration; 2202} 2203 2204//////////////////////////////////////////////////////////////////////////////// 2205 2206struct CallbackThread : public Thread { 2207 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 2208 MediaPlayerBase::AudioSink::AudioCallback cb, 2209 void *cookie); 2210 2211protected: 2212 virtual ~CallbackThread(); 2213 2214 virtual bool threadLoop(); 2215 2216private: 2217 wp<MediaPlayerBase::AudioSink> mSink; 2218 MediaPlayerBase::AudioSink::AudioCallback mCallback; 2219 void *mCookie; 2220 void *mBuffer; 2221 size_t mBufferSize; 2222 2223 CallbackThread(const CallbackThread &); 2224 CallbackThread &operator=(const CallbackThread &); 2225}; 2226 2227CallbackThread::CallbackThread( 2228 const wp<MediaPlayerBase::AudioSink> &sink, 2229 MediaPlayerBase::AudioSink::AudioCallback cb, 2230 void *cookie) 2231 : mSink(sink), 2232 mCallback(cb), 2233 mCookie(cookie), 2234 mBuffer(NULL), 2235 mBufferSize(0) { 2236} 2237 2238CallbackThread::~CallbackThread() { 2239 if (mBuffer) { 2240 free(mBuffer); 2241 mBuffer = NULL; 2242 } 2243} 2244 2245bool CallbackThread::threadLoop() { 2246 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 2247 if (sink == NULL) { 2248 return false; 2249 } 2250 2251 if (mBuffer == NULL) { 2252 mBufferSize = sink->bufferSize(); 2253 mBuffer = malloc(mBufferSize); 2254 } 2255 2256 size_t actualSize = 2257 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie, 2258 MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER); 2259 2260 if (actualSize > 0) { 2261 sink->write(mBuffer, actualSize); 2262 // Could return false on sink->write() error or short count. 2263 // Not necessarily appropriate but would work for AudioCache behavior. 2264 } 2265 2266 return true; 2267} 2268 2269//////////////////////////////////////////////////////////////////////////////// 2270 2271void MediaPlayerService::addBatteryData(uint32_t params) 2272{ 2273 Mutex::Autolock lock(mLock); 2274 2275 int32_t time = systemTime() / 1000000L; 2276 2277 // change audio output devices. This notification comes from AudioFlinger 2278 if ((params & kBatteryDataSpeakerOn) 2279 || (params & kBatteryDataOtherAudioDeviceOn)) { 2280 2281 int deviceOn[NUM_AUDIO_DEVICES]; 2282 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2283 deviceOn[i] = 0; 2284 } 2285 2286 if ((params & kBatteryDataSpeakerOn) 2287 && (params & kBatteryDataOtherAudioDeviceOn)) { 2288 deviceOn[SPEAKER_AND_OTHER] = 1; 2289 } else if (params & kBatteryDataSpeakerOn) { 2290 deviceOn[SPEAKER] = 1; 2291 } else { 2292 deviceOn[OTHER_AUDIO_DEVICE] = 1; 2293 } 2294 2295 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2296 if (mBatteryAudio.deviceOn[i] != deviceOn[i]){ 2297 2298 if (mBatteryAudio.refCount > 0) { // if playing audio 2299 if (!deviceOn[i]) { 2300 mBatteryAudio.lastTime[i] += time; 2301 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2302 mBatteryAudio.lastTime[i] = 0; 2303 } else { 2304 mBatteryAudio.lastTime[i] = 0 - time; 2305 } 2306 } 2307 2308 mBatteryAudio.deviceOn[i] = deviceOn[i]; 2309 } 2310 } 2311 return; 2312 } 2313 2314 // an audio stream is started 2315 if (params & kBatteryDataAudioFlingerStart) { 2316 // record the start time only if currently no other audio 2317 // is being played 2318 if (mBatteryAudio.refCount == 0) { 2319 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2320 if (mBatteryAudio.deviceOn[i]) { 2321 mBatteryAudio.lastTime[i] -= time; 2322 } 2323 } 2324 } 2325 2326 mBatteryAudio.refCount ++; 2327 return; 2328 2329 } else if (params & kBatteryDataAudioFlingerStop) { 2330 if (mBatteryAudio.refCount <= 0) { 2331 ALOGW("Battery track warning: refCount is <= 0"); 2332 return; 2333 } 2334 2335 // record the stop time only if currently this is the only 2336 // audio being played 2337 if (mBatteryAudio.refCount == 1) { 2338 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2339 if (mBatteryAudio.deviceOn[i]) { 2340 mBatteryAudio.lastTime[i] += time; 2341 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2342 mBatteryAudio.lastTime[i] = 0; 2343 } 2344 } 2345 } 2346 2347 mBatteryAudio.refCount --; 2348 return; 2349 } 2350 2351 int uid = IPCThreadState::self()->getCallingUid(); 2352 if (uid == AID_MEDIA) { 2353 return; 2354 } 2355 int index = mBatteryData.indexOfKey(uid); 2356 2357 if (index < 0) { // create a new entry for this UID 2358 BatteryUsageInfo info; 2359 info.audioTotalTime = 0; 2360 info.videoTotalTime = 0; 2361 info.audioLastTime = 0; 2362 info.videoLastTime = 0; 2363 info.refCount = 0; 2364 2365 if (mBatteryData.add(uid, info) == NO_MEMORY) { 2366 ALOGE("Battery track error: no memory for new app"); 2367 return; 2368 } 2369 } 2370 2371 BatteryUsageInfo &info = mBatteryData.editValueFor(uid); 2372 2373 if (params & kBatteryDataCodecStarted) { 2374 if (params & kBatteryDataTrackAudio) { 2375 info.audioLastTime -= time; 2376 info.refCount ++; 2377 } 2378 if (params & kBatteryDataTrackVideo) { 2379 info.videoLastTime -= time; 2380 info.refCount ++; 2381 } 2382 } else { 2383 if (info.refCount == 0) { 2384 ALOGW("Battery track warning: refCount is already 0"); 2385 return; 2386 } else if (info.refCount < 0) { 2387 ALOGE("Battery track error: refCount < 0"); 2388 mBatteryData.removeItem(uid); 2389 return; 2390 } 2391 2392 if (params & kBatteryDataTrackAudio) { 2393 info.audioLastTime += time; 2394 info.refCount --; 2395 } 2396 if (params & kBatteryDataTrackVideo) { 2397 info.videoLastTime += time; 2398 info.refCount --; 2399 } 2400 2401 // no stream is being played by this UID 2402 if (info.refCount == 0) { 2403 info.audioTotalTime += info.audioLastTime; 2404 info.audioLastTime = 0; 2405 info.videoTotalTime += info.videoLastTime; 2406 info.videoLastTime = 0; 2407 } 2408 } 2409} 2410 2411status_t MediaPlayerService::pullBatteryData(Parcel* reply) { 2412 Mutex::Autolock lock(mLock); 2413 2414 // audio output devices usage 2415 int32_t time = systemTime() / 1000000L; //in ms 2416 int32_t totalTime; 2417 2418 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2419 totalTime = mBatteryAudio.totalTime[i]; 2420 2421 if (mBatteryAudio.deviceOn[i] 2422 && (mBatteryAudio.lastTime[i] != 0)) { 2423 int32_t tmpTime = mBatteryAudio.lastTime[i] + time; 2424 totalTime += tmpTime; 2425 } 2426 2427 reply->writeInt32(totalTime); 2428 // reset the total time 2429 mBatteryAudio.totalTime[i] = 0; 2430 } 2431 2432 // codec usage 2433 BatteryUsageInfo info; 2434 int size = mBatteryData.size(); 2435 2436 reply->writeInt32(size); 2437 int i = 0; 2438 2439 while (i < size) { 2440 info = mBatteryData.valueAt(i); 2441 2442 reply->writeInt32(mBatteryData.keyAt(i)); //UID 2443 reply->writeInt32(info.audioTotalTime); 2444 reply->writeInt32(info.videoTotalTime); 2445 2446 info.audioTotalTime = 0; 2447 info.videoTotalTime = 0; 2448 2449 // remove the UID entry where no stream is being played 2450 if (info.refCount <= 0) { 2451 mBatteryData.removeItemsAt(i); 2452 size --; 2453 i --; 2454 } 2455 i++; 2456 } 2457 return NO_ERROR; 2458} 2459} // namespace android 2460