MediaPlayerService.cpp revision dc6f340e537ce511ea1d2f8ce7dc1c4ed231f6a6
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::setBufferingSettings( 976 const BufferingSettings& buffering) 977{ 978 ALOGV("[%d] setBufferingSettings{%s}", 979 mConnId, buffering.toString().string()); 980 sp<MediaPlayerBase> p = getPlayer(); 981 if (p == 0) return UNKNOWN_ERROR; 982 return p->setBufferingSettings(buffering); 983} 984 985status_t MediaPlayerService::Client::getDefaultBufferingSettings( 986 BufferingSettings* buffering /* nonnull */) 987{ 988 sp<MediaPlayerBase> p = getPlayer(); 989 // TODO: create mPlayer on demand. 990 if (p == 0) return UNKNOWN_ERROR; 991 status_t ret = p->getDefaultBufferingSettings(buffering); 992 if (ret == NO_ERROR) { 993 ALOGV("[%d] getDefaultBufferingSettings{%s}", 994 mConnId, buffering->toString().string()); 995 } else { 996 ALOGV("[%d] getDefaultBufferingSettings returned %d", mConnId, ret); 997 } 998 return ret; 999} 1000 1001status_t MediaPlayerService::Client::prepareAsync() 1002{ 1003 ALOGV("[%d] prepareAsync", mConnId); 1004 sp<MediaPlayerBase> p = getPlayer(); 1005 if (p == 0) return UNKNOWN_ERROR; 1006 status_t ret = p->prepareAsync(); 1007#if CALLBACK_ANTAGONIZER 1008 ALOGD("start Antagonizer"); 1009 if (ret == NO_ERROR) mAntagonizer->start(); 1010#endif 1011 return ret; 1012} 1013 1014status_t MediaPlayerService::Client::start() 1015{ 1016 ALOGV("[%d] start", mConnId); 1017 sp<MediaPlayerBase> p = getPlayer(); 1018 if (p == 0) return UNKNOWN_ERROR; 1019 p->setLooping(mLoop); 1020 return p->start(); 1021} 1022 1023status_t MediaPlayerService::Client::stop() 1024{ 1025 ALOGV("[%d] stop", mConnId); 1026 sp<MediaPlayerBase> p = getPlayer(); 1027 if (p == 0) return UNKNOWN_ERROR; 1028 return p->stop(); 1029} 1030 1031status_t MediaPlayerService::Client::pause() 1032{ 1033 ALOGV("[%d] pause", mConnId); 1034 sp<MediaPlayerBase> p = getPlayer(); 1035 if (p == 0) return UNKNOWN_ERROR; 1036 return p->pause(); 1037} 1038 1039status_t MediaPlayerService::Client::isPlaying(bool* state) 1040{ 1041 *state = false; 1042 sp<MediaPlayerBase> p = getPlayer(); 1043 if (p == 0) return UNKNOWN_ERROR; 1044 *state = p->isPlaying(); 1045 ALOGV("[%d] isPlaying: %d", mConnId, *state); 1046 return NO_ERROR; 1047} 1048 1049status_t MediaPlayerService::Client::setPlaybackSettings(const AudioPlaybackRate& rate) 1050{ 1051 ALOGV("[%d] setPlaybackSettings(%f, %f, %d, %d)", 1052 mConnId, rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode); 1053 sp<MediaPlayerBase> p = getPlayer(); 1054 if (p == 0) return UNKNOWN_ERROR; 1055 return p->setPlaybackSettings(rate); 1056} 1057 1058status_t MediaPlayerService::Client::getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */) 1059{ 1060 sp<MediaPlayerBase> p = getPlayer(); 1061 if (p == 0) return UNKNOWN_ERROR; 1062 status_t ret = p->getPlaybackSettings(rate); 1063 if (ret == NO_ERROR) { 1064 ALOGV("[%d] getPlaybackSettings(%f, %f, %d, %d)", 1065 mConnId, rate->mSpeed, rate->mPitch, rate->mFallbackMode, rate->mStretchMode); 1066 } else { 1067 ALOGV("[%d] getPlaybackSettings returned %d", mConnId, ret); 1068 } 1069 return ret; 1070} 1071 1072status_t MediaPlayerService::Client::setSyncSettings( 1073 const AVSyncSettings& sync, float videoFpsHint) 1074{ 1075 ALOGV("[%d] setSyncSettings(%u, %u, %f, %f)", 1076 mConnId, sync.mSource, sync.mAudioAdjustMode, sync.mTolerance, videoFpsHint); 1077 sp<MediaPlayerBase> p = getPlayer(); 1078 if (p == 0) return UNKNOWN_ERROR; 1079 return p->setSyncSettings(sync, videoFpsHint); 1080} 1081 1082status_t MediaPlayerService::Client::getSyncSettings( 1083 AVSyncSettings* sync /* nonnull */, float* videoFps /* nonnull */) 1084{ 1085 sp<MediaPlayerBase> p = getPlayer(); 1086 if (p == 0) return UNKNOWN_ERROR; 1087 status_t ret = p->getSyncSettings(sync, videoFps); 1088 if (ret == NO_ERROR) { 1089 ALOGV("[%d] getSyncSettings(%u, %u, %f, %f)", 1090 mConnId, sync->mSource, sync->mAudioAdjustMode, sync->mTolerance, *videoFps); 1091 } else { 1092 ALOGV("[%d] getSyncSettings returned %d", mConnId, ret); 1093 } 1094 return ret; 1095} 1096 1097status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 1098{ 1099 ALOGV("getCurrentPosition"); 1100 sp<MediaPlayerBase> p = getPlayer(); 1101 if (p == 0) return UNKNOWN_ERROR; 1102 status_t ret = p->getCurrentPosition(msec); 1103 if (ret == NO_ERROR) { 1104 ALOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 1105 } else { 1106 ALOGE("getCurrentPosition returned %d", ret); 1107 } 1108 return ret; 1109} 1110 1111status_t MediaPlayerService::Client::getDuration(int *msec) 1112{ 1113 ALOGV("getDuration"); 1114 sp<MediaPlayerBase> p = getPlayer(); 1115 if (p == 0) return UNKNOWN_ERROR; 1116 status_t ret = p->getDuration(msec); 1117 if (ret == NO_ERROR) { 1118 ALOGV("[%d] getDuration = %d", mConnId, *msec); 1119 } else { 1120 ALOGE("getDuration returned %d", ret); 1121 } 1122 return ret; 1123} 1124 1125status_t MediaPlayerService::Client::setNextPlayer(const sp<IMediaPlayer>& player) { 1126 ALOGV("setNextPlayer"); 1127 Mutex::Autolock l(mLock); 1128 sp<Client> c = static_cast<Client*>(player.get()); 1129 if (c != NULL && !mService->hasClient(c)) { 1130 return BAD_VALUE; 1131 } 1132 1133 mNextClient = c; 1134 1135 if (c != NULL) { 1136 if (mAudioOutput != NULL) { 1137 mAudioOutput->setNextOutput(c->mAudioOutput); 1138 } else if ((mPlayer != NULL) && !mPlayer->hardwareOutput()) { 1139 ALOGE("no current audio output"); 1140 } 1141 1142 if ((mPlayer != NULL) && (mNextClient->getPlayer() != NULL)) { 1143 mPlayer->setNextPlayer(mNextClient->getPlayer()); 1144 } 1145 } 1146 1147 return OK; 1148} 1149 1150status_t MediaPlayerService::Client::seekTo(int msec, MediaPlayerSeekMode mode) 1151{ 1152 ALOGV("[%d] seekTo(%d, %d)", mConnId, msec, mode); 1153 sp<MediaPlayerBase> p = getPlayer(); 1154 if (p == 0) return UNKNOWN_ERROR; 1155 return p->seekTo(msec, mode); 1156} 1157 1158status_t MediaPlayerService::Client::reset() 1159{ 1160 ALOGV("[%d] reset", mConnId); 1161 mRetransmitEndpointValid = false; 1162 sp<MediaPlayerBase> p = getPlayer(); 1163 if (p == 0) return UNKNOWN_ERROR; 1164 return p->reset(); 1165} 1166 1167status_t MediaPlayerService::Client::setAudioStreamType(audio_stream_type_t type) 1168{ 1169 ALOGV("[%d] setAudioStreamType(%d)", mConnId, type); 1170 // TODO: for hardware output, call player instead 1171 Mutex::Autolock l(mLock); 1172 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 1173 return NO_ERROR; 1174} 1175 1176status_t MediaPlayerService::Client::setAudioAttributes_l(const Parcel &parcel) 1177{ 1178 if (mAudioAttributes != NULL) { free(mAudioAttributes); } 1179 mAudioAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1180 if (mAudioAttributes == NULL) { 1181 return NO_MEMORY; 1182 } 1183 unmarshallAudioAttributes(parcel, mAudioAttributes); 1184 1185 ALOGV("setAudioAttributes_l() usage=%d content=%d flags=0x%x tags=%s", 1186 mAudioAttributes->usage, mAudioAttributes->content_type, mAudioAttributes->flags, 1187 mAudioAttributes->tags); 1188 1189 if (mAudioOutput != 0) { 1190 mAudioOutput->setAudioAttributes(mAudioAttributes); 1191 } 1192 return NO_ERROR; 1193} 1194 1195status_t MediaPlayerService::Client::setLooping(int loop) 1196{ 1197 ALOGV("[%d] setLooping(%d)", mConnId, loop); 1198 mLoop = loop; 1199 sp<MediaPlayerBase> p = getPlayer(); 1200 if (p != 0) return p->setLooping(loop); 1201 return NO_ERROR; 1202} 1203 1204status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1205{ 1206 ALOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1207 1208 // for hardware output, call player instead 1209 sp<MediaPlayerBase> p = getPlayer(); 1210 { 1211 Mutex::Autolock l(mLock); 1212 if (p != 0 && p->hardwareOutput()) { 1213 MediaPlayerHWInterface* hwp = 1214 reinterpret_cast<MediaPlayerHWInterface*>(p.get()); 1215 return hwp->setVolume(leftVolume, rightVolume); 1216 } else { 1217 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1218 return NO_ERROR; 1219 } 1220 } 1221 1222 return NO_ERROR; 1223} 1224 1225status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level) 1226{ 1227 ALOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level); 1228 Mutex::Autolock l(mLock); 1229 if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level); 1230 return NO_ERROR; 1231} 1232 1233status_t MediaPlayerService::Client::attachAuxEffect(int effectId) 1234{ 1235 ALOGV("[%d] attachAuxEffect(%d)", mConnId, effectId); 1236 Mutex::Autolock l(mLock); 1237 if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId); 1238 return NO_ERROR; 1239} 1240 1241status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) { 1242 ALOGV("[%d] setParameter(%d)", mConnId, key); 1243 switch (key) { 1244 case KEY_PARAMETER_AUDIO_ATTRIBUTES: 1245 { 1246 Mutex::Autolock l(mLock); 1247 return setAudioAttributes_l(request); 1248 } 1249 default: 1250 sp<MediaPlayerBase> p = getPlayer(); 1251 if (p == 0) { return UNKNOWN_ERROR; } 1252 return p->setParameter(key, request); 1253 } 1254} 1255 1256status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) { 1257 ALOGV("[%d] getParameter(%d)", mConnId, key); 1258 sp<MediaPlayerBase> p = getPlayer(); 1259 if (p == 0) return UNKNOWN_ERROR; 1260 return p->getParameter(key, reply); 1261} 1262 1263status_t MediaPlayerService::Client::setRetransmitEndpoint( 1264 const struct sockaddr_in* endpoint) { 1265 1266 if (NULL != endpoint) { 1267 uint32_t a = ntohl(endpoint->sin_addr.s_addr); 1268 uint16_t p = ntohs(endpoint->sin_port); 1269 ALOGV("[%d] setRetransmitEndpoint(%u.%u.%u.%u:%hu)", mConnId, 1270 (a >> 24), (a >> 16) & 0xFF, (a >> 8) & 0xFF, (a & 0xFF), p); 1271 } else { 1272 ALOGV("[%d] setRetransmitEndpoint = <none>", mConnId); 1273 } 1274 1275 sp<MediaPlayerBase> p = getPlayer(); 1276 1277 // Right now, the only valid time to set a retransmit endpoint is before 1278 // player selection has been made (since the presence or absence of a 1279 // retransmit endpoint is going to determine which player is selected during 1280 // setDataSource). 1281 if (p != 0) return INVALID_OPERATION; 1282 1283 if (NULL != endpoint) { 1284 mRetransmitEndpoint = *endpoint; 1285 mRetransmitEndpointValid = true; 1286 } else { 1287 mRetransmitEndpointValid = false; 1288 } 1289 1290 return NO_ERROR; 1291} 1292 1293status_t MediaPlayerService::Client::getRetransmitEndpoint( 1294 struct sockaddr_in* endpoint) 1295{ 1296 if (NULL == endpoint) 1297 return BAD_VALUE; 1298 1299 sp<MediaPlayerBase> p = getPlayer(); 1300 1301 if (p != NULL) 1302 return p->getRetransmitEndpoint(endpoint); 1303 1304 if (!mRetransmitEndpointValid) 1305 return NO_INIT; 1306 1307 *endpoint = mRetransmitEndpoint; 1308 1309 return NO_ERROR; 1310} 1311 1312void MediaPlayerService::Client::notify( 1313 void* cookie, int msg, int ext1, int ext2, const Parcel *obj) 1314{ 1315 Client* client = static_cast<Client*>(cookie); 1316 if (client == NULL) { 1317 return; 1318 } 1319 1320 sp<IMediaPlayerClient> c; 1321 { 1322 Mutex::Autolock l(client->mLock); 1323 c = client->mClient; 1324 if (msg == MEDIA_PLAYBACK_COMPLETE && client->mNextClient != NULL) { 1325 if (client->mAudioOutput != NULL) 1326 client->mAudioOutput->switchToNextOutput(); 1327 client->mNextClient->start(); 1328 if (client->mNextClient->mClient != NULL) { 1329 client->mNextClient->mClient->notify( 1330 MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj); 1331 } 1332 } 1333 } 1334 1335 if (MEDIA_INFO == msg && 1336 MEDIA_INFO_METADATA_UPDATE == ext1) { 1337 const media::Metadata::Type metadata_type = ext2; 1338 1339 if(client->shouldDropMetadata(metadata_type)) { 1340 return; 1341 } 1342 1343 // Update the list of metadata that have changed. getMetadata 1344 // also access mMetadataUpdated and clears it. 1345 client->addNewMetadataUpdate(metadata_type); 1346 } 1347 1348 if (c != NULL) { 1349 ALOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1350 c->notify(msg, ext1, ext2, obj); 1351 } 1352} 1353 1354 1355bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1356{ 1357 Mutex::Autolock lock(mLock); 1358 1359 if (findMetadata(mMetadataDrop, code)) { 1360 return true; 1361 } 1362 1363 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1364 return false; 1365 } else { 1366 return true; 1367 } 1368} 1369 1370 1371void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1372 Mutex::Autolock lock(mLock); 1373 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1374 mMetadataUpdated.add(metadata_type); 1375 } 1376} 1377 1378#if CALLBACK_ANTAGONIZER 1379const int Antagonizer::interval = 10000; // 10 msecs 1380 1381Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1382 mExit(false), mActive(false), mClient(client), mCb(cb) 1383{ 1384 createThread(callbackThread, this); 1385} 1386 1387void Antagonizer::kill() 1388{ 1389 Mutex::Autolock _l(mLock); 1390 mActive = false; 1391 mExit = true; 1392 mCondition.wait(mLock); 1393} 1394 1395int Antagonizer::callbackThread(void* user) 1396{ 1397 ALOGD("Antagonizer started"); 1398 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1399 while (!p->mExit) { 1400 if (p->mActive) { 1401 ALOGV("send event"); 1402 p->mCb(p->mClient, 0, 0, 0); 1403 } 1404 usleep(interval); 1405 } 1406 Mutex::Autolock _l(p->mLock); 1407 p->mCondition.signal(); 1408 ALOGD("Antagonizer stopped"); 1409 return 0; 1410} 1411#endif 1412 1413#undef LOG_TAG 1414#define LOG_TAG "AudioSink" 1415MediaPlayerService::AudioOutput::AudioOutput(audio_session_t sessionId, uid_t uid, int pid, 1416 const audio_attributes_t* attr) 1417 : mCallback(NULL), 1418 mCallbackCookie(NULL), 1419 mCallbackData(NULL), 1420 mStreamType(AUDIO_STREAM_MUSIC), 1421 mLeftVolume(1.0), 1422 mRightVolume(1.0), 1423 mPlaybackRate(AUDIO_PLAYBACK_RATE_DEFAULT), 1424 mSampleRateHz(0), 1425 mMsecsPerFrame(0), 1426 mFrameSize(0), 1427 mSessionId(sessionId), 1428 mUid(uid), 1429 mPid(pid), 1430 mSendLevel(0.0), 1431 mAuxEffectId(0), 1432 mFlags(AUDIO_OUTPUT_FLAG_NONE) 1433{ 1434 ALOGV("AudioOutput(%d)", sessionId); 1435 if (attr != NULL) { 1436 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1437 if (mAttributes != NULL) { 1438 memcpy(mAttributes, attr, sizeof(audio_attributes_t)); 1439 mStreamType = audio_attributes_to_stream_type(attr); 1440 } 1441 } else { 1442 mAttributes = NULL; 1443 } 1444 1445 setMinBufferCount(); 1446} 1447 1448MediaPlayerService::AudioOutput::~AudioOutput() 1449{ 1450 close(); 1451 free(mAttributes); 1452 delete mCallbackData; 1453} 1454 1455//static 1456void MediaPlayerService::AudioOutput::setMinBufferCount() 1457{ 1458 char value[PROPERTY_VALUE_MAX]; 1459 if (property_get("ro.kernel.qemu", value, 0)) { 1460 mIsOnEmulator = true; 1461 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1462 } 1463} 1464 1465// static 1466bool MediaPlayerService::AudioOutput::isOnEmulator() 1467{ 1468 setMinBufferCount(); // benign race wrt other threads 1469 return mIsOnEmulator; 1470} 1471 1472// static 1473int MediaPlayerService::AudioOutput::getMinBufferCount() 1474{ 1475 setMinBufferCount(); // benign race wrt other threads 1476 return mMinBufferCount; 1477} 1478 1479ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1480{ 1481 Mutex::Autolock lock(mLock); 1482 if (mTrack == 0) return NO_INIT; 1483 return mTrack->frameCount() * mFrameSize; 1484} 1485 1486ssize_t MediaPlayerService::AudioOutput::frameCount() const 1487{ 1488 Mutex::Autolock lock(mLock); 1489 if (mTrack == 0) return NO_INIT; 1490 return mTrack->frameCount(); 1491} 1492 1493ssize_t MediaPlayerService::AudioOutput::channelCount() const 1494{ 1495 Mutex::Autolock lock(mLock); 1496 if (mTrack == 0) return NO_INIT; 1497 return mTrack->channelCount(); 1498} 1499 1500ssize_t MediaPlayerService::AudioOutput::frameSize() const 1501{ 1502 Mutex::Autolock lock(mLock); 1503 if (mTrack == 0) return NO_INIT; 1504 return mFrameSize; 1505} 1506 1507uint32_t MediaPlayerService::AudioOutput::latency () const 1508{ 1509 Mutex::Autolock lock(mLock); 1510 if (mTrack == 0) return 0; 1511 return mTrack->latency(); 1512} 1513 1514float MediaPlayerService::AudioOutput::msecsPerFrame() const 1515{ 1516 Mutex::Autolock lock(mLock); 1517 return mMsecsPerFrame; 1518} 1519 1520status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) const 1521{ 1522 Mutex::Autolock lock(mLock); 1523 if (mTrack == 0) return NO_INIT; 1524 return mTrack->getPosition(position); 1525} 1526 1527status_t MediaPlayerService::AudioOutput::getTimestamp(AudioTimestamp &ts) const 1528{ 1529 Mutex::Autolock lock(mLock); 1530 if (mTrack == 0) return NO_INIT; 1531 return mTrack->getTimestamp(ts); 1532} 1533 1534// TODO: Remove unnecessary calls to getPlayedOutDurationUs() 1535// as it acquires locks and may query the audio driver. 1536// 1537// Some calls could conceivably retrieve extrapolated data instead of 1538// accessing getTimestamp() or getPosition() every time a data buffer with 1539// a media time is received. 1540// 1541// Calculate duration of played samples if played at normal rate (i.e., 1.0). 1542int64_t MediaPlayerService::AudioOutput::getPlayedOutDurationUs(int64_t nowUs) const 1543{ 1544 Mutex::Autolock lock(mLock); 1545 if (mTrack == 0 || mSampleRateHz == 0) { 1546 return 0; 1547 } 1548 1549 uint32_t numFramesPlayed; 1550 int64_t numFramesPlayedAtUs; 1551 AudioTimestamp ts; 1552 1553 status_t res = mTrack->getTimestamp(ts); 1554 if (res == OK) { // case 1: mixing audio tracks and offloaded tracks. 1555 numFramesPlayed = ts.mPosition; 1556 numFramesPlayedAtUs = ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000; 1557 //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAtUs); 1558 } else if (res == WOULD_BLOCK) { // case 2: transitory state on start of a new track 1559 numFramesPlayed = 0; 1560 numFramesPlayedAtUs = nowUs; 1561 //ALOGD("getTimestamp: WOULD_BLOCK %d %lld", 1562 // numFramesPlayed, (long long)numFramesPlayedAtUs); 1563 } else { // case 3: transitory at new track or audio fast tracks. 1564 res = mTrack->getPosition(&numFramesPlayed); 1565 CHECK_EQ(res, (status_t)OK); 1566 numFramesPlayedAtUs = nowUs; 1567 numFramesPlayedAtUs += 1000LL * mTrack->latency() / 2; /* XXX */ 1568 //ALOGD("getPosition: %u %lld", numFramesPlayed, (long long)numFramesPlayedAtUs); 1569 } 1570 1571 // CHECK_EQ(numFramesPlayed & (1 << 31), 0); // can't be negative until 12.4 hrs, test 1572 // TODO: remove the (int32_t) casting below as it may overflow at 12.4 hours. 1573 int64_t durationUs = (int64_t)((int32_t)numFramesPlayed * 1000000LL / mSampleRateHz) 1574 + nowUs - numFramesPlayedAtUs; 1575 if (durationUs < 0) { 1576 // Occurs when numFramesPlayed position is very small and the following: 1577 // (1) In case 1, the time nowUs is computed before getTimestamp() is called and 1578 // numFramesPlayedAtUs is greater than nowUs by time more than numFramesPlayed. 1579 // (2) In case 3, using getPosition and adding mAudioSink->latency() to 1580 // numFramesPlayedAtUs, by a time amount greater than numFramesPlayed. 1581 // 1582 // Both of these are transitory conditions. 1583 ALOGV("getPlayedOutDurationUs: negative duration %lld set to zero", (long long)durationUs); 1584 durationUs = 0; 1585 } 1586 ALOGV("getPlayedOutDurationUs(%lld) nowUs(%lld) frames(%u) framesAt(%lld)", 1587 (long long)durationUs, (long long)nowUs, 1588 numFramesPlayed, (long long)numFramesPlayedAtUs); 1589 return durationUs; 1590} 1591 1592status_t MediaPlayerService::AudioOutput::getFramesWritten(uint32_t *frameswritten) const 1593{ 1594 Mutex::Autolock lock(mLock); 1595 if (mTrack == 0) return NO_INIT; 1596 ExtendedTimestamp ets; 1597 status_t status = mTrack->getTimestamp(&ets); 1598 if (status == OK || status == WOULD_BLOCK) { 1599 *frameswritten = (uint32_t)ets.mPosition[ExtendedTimestamp::LOCATION_CLIENT]; 1600 } 1601 return status; 1602} 1603 1604status_t MediaPlayerService::AudioOutput::setParameters(const String8& keyValuePairs) 1605{ 1606 Mutex::Autolock lock(mLock); 1607 if (mTrack == 0) return NO_INIT; 1608 return mTrack->setParameters(keyValuePairs); 1609} 1610 1611String8 MediaPlayerService::AudioOutput::getParameters(const String8& keys) 1612{ 1613 Mutex::Autolock lock(mLock); 1614 if (mTrack == 0) return String8::empty(); 1615 return mTrack->getParameters(keys); 1616} 1617 1618void MediaPlayerService::AudioOutput::setAudioAttributes(const audio_attributes_t * attributes) { 1619 Mutex::Autolock lock(mLock); 1620 if (attributes == NULL) { 1621 free(mAttributes); 1622 mAttributes = NULL; 1623 } else { 1624 if (mAttributes == NULL) { 1625 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1626 } 1627 memcpy(mAttributes, attributes, sizeof(audio_attributes_t)); 1628 mStreamType = audio_attributes_to_stream_type(attributes); 1629 } 1630} 1631 1632void MediaPlayerService::AudioOutput::setAudioStreamType(audio_stream_type_t streamType) 1633{ 1634 Mutex::Autolock lock(mLock); 1635 // do not allow direct stream type modification if attributes have been set 1636 if (mAttributes == NULL) { 1637 mStreamType = streamType; 1638 } 1639} 1640 1641void MediaPlayerService::AudioOutput::deleteRecycledTrack_l() 1642{ 1643 ALOGV("deleteRecycledTrack_l"); 1644 if (mRecycledTrack != 0) { 1645 1646 if (mCallbackData != NULL) { 1647 mCallbackData->setOutput(NULL); 1648 mCallbackData->endTrackSwitch(); 1649 } 1650 1651 if ((mRecycledTrack->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) { 1652 int32_t msec = 0; 1653 if (!mRecycledTrack->stopped()) { // check if active 1654 (void)mRecycledTrack->pendingDuration(&msec); 1655 } 1656 mRecycledTrack->stop(); // ensure full data drain 1657 ALOGD("deleting recycled track, waiting for data drain (%d msec)", msec); 1658 if (msec > 0) { 1659 static const int32_t WAIT_LIMIT_MS = 3000; 1660 if (msec > WAIT_LIMIT_MS) { 1661 msec = WAIT_LIMIT_MS; 1662 } 1663 usleep(msec * 1000LL); 1664 } 1665 } 1666 // An offloaded track isn't flushed because the STREAM_END is reported 1667 // slightly prematurely to allow time for the gapless track switch 1668 // but this means that if we decide not to recycle the track there 1669 // could be a small amount of residual data still playing. We leave 1670 // AudioFlinger to drain the track. 1671 1672 mRecycledTrack.clear(); 1673 close_l(); 1674 delete mCallbackData; 1675 mCallbackData = NULL; 1676 } 1677} 1678 1679void MediaPlayerService::AudioOutput::close_l() 1680{ 1681 mTrack.clear(); 1682} 1683 1684status_t MediaPlayerService::AudioOutput::open( 1685 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 1686 audio_format_t format, int bufferCount, 1687 AudioCallback cb, void *cookie, 1688 audio_output_flags_t flags, 1689 const audio_offload_info_t *offloadInfo, 1690 bool doNotReconnect, 1691 uint32_t suggestedFrameCount) 1692{ 1693 ALOGV("open(%u, %d, 0x%x, 0x%x, %d, %d 0x%x)", sampleRate, channelCount, channelMask, 1694 format, bufferCount, mSessionId, flags); 1695 1696 // offloading is only supported in callback mode for now. 1697 // offloadInfo must be present if offload flag is set 1698 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) && 1699 ((cb == NULL) || (offloadInfo == NULL))) { 1700 return BAD_VALUE; 1701 } 1702 1703 // compute frame count for the AudioTrack internal buffer 1704 size_t frameCount; 1705 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1706 frameCount = 0; // AudioTrack will get frame count from AudioFlinger 1707 } else { 1708 // try to estimate the buffer processing fetch size from AudioFlinger. 1709 // framesPerBuffer is approximate and generally correct, except when it's not :-). 1710 uint32_t afSampleRate; 1711 size_t afFrameCount; 1712 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1713 return NO_INIT; 1714 } 1715 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1716 return NO_INIT; 1717 } 1718 const size_t framesPerBuffer = 1719 (unsigned long long)sampleRate * afFrameCount / afSampleRate; 1720 1721 if (bufferCount == 0) { 1722 // use suggestedFrameCount 1723 bufferCount = (suggestedFrameCount + framesPerBuffer - 1) / framesPerBuffer; 1724 } 1725 // Check argument bufferCount against the mininum buffer count 1726 if (bufferCount != 0 && bufferCount < mMinBufferCount) { 1727 ALOGV("bufferCount (%d) increased to %d", bufferCount, mMinBufferCount); 1728 bufferCount = mMinBufferCount; 1729 } 1730 // if frameCount is 0, then AudioTrack will get frame count from AudioFlinger 1731 // which will be the minimum size permitted. 1732 frameCount = bufferCount * framesPerBuffer; 1733 } 1734 1735 if (channelMask == CHANNEL_MASK_USE_CHANNEL_ORDER) { 1736 channelMask = audio_channel_out_mask_from_count(channelCount); 1737 if (0 == channelMask) { 1738 ALOGE("open() error, can\'t derive mask for %d audio channels", channelCount); 1739 return NO_INIT; 1740 } 1741 } 1742 1743 Mutex::Autolock lock(mLock); 1744 mCallback = cb; 1745 mCallbackCookie = cookie; 1746 1747 // Check whether we can recycle the track 1748 bool reuse = false; 1749 bool bothOffloaded = false; 1750 1751 if (mRecycledTrack != 0) { 1752 // check whether we are switching between two offloaded tracks 1753 bothOffloaded = (flags & mRecycledTrack->getFlags() 1754 & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; 1755 1756 // check if the existing track can be reused as-is, or if a new track needs to be created. 1757 reuse = true; 1758 1759 if ((mCallbackData == NULL && mCallback != NULL) || 1760 (mCallbackData != NULL && mCallback == NULL)) { 1761 // recycled track uses callbacks but the caller wants to use writes, or vice versa 1762 ALOGV("can't chain callback and write"); 1763 reuse = false; 1764 } else if ((mRecycledTrack->getSampleRate() != sampleRate) || 1765 (mRecycledTrack->channelCount() != (uint32_t)channelCount) ) { 1766 ALOGV("samplerate, channelcount differ: %u/%u Hz, %u/%d ch", 1767 mRecycledTrack->getSampleRate(), sampleRate, 1768 mRecycledTrack->channelCount(), channelCount); 1769 reuse = false; 1770 } else if (flags != mFlags) { 1771 ALOGV("output flags differ %08x/%08x", flags, mFlags); 1772 reuse = false; 1773 } else if (mRecycledTrack->format() != format) { 1774 reuse = false; 1775 } 1776 } else { 1777 ALOGV("no track available to recycle"); 1778 } 1779 1780 ALOGV_IF(bothOffloaded, "both tracks offloaded"); 1781 1782 // If we can't recycle and both tracks are offloaded 1783 // we must close the previous output before opening a new one 1784 if (bothOffloaded && !reuse) { 1785 ALOGV("both offloaded and not recycling"); 1786 deleteRecycledTrack_l(); 1787 } 1788 1789 sp<AudioTrack> t; 1790 CallbackData *newcbd = NULL; 1791 1792 // We don't attempt to create a new track if we are recycling an 1793 // offloaded track. But, if we are recycling a non-offloaded or we 1794 // are switching where one is offloaded and one isn't then we create 1795 // the new track in advance so that we can read additional stream info 1796 1797 if (!(reuse && bothOffloaded)) { 1798 ALOGV("creating new AudioTrack"); 1799 1800 if (mCallback != NULL) { 1801 newcbd = new CallbackData(this); 1802 t = new AudioTrack( 1803 mStreamType, 1804 sampleRate, 1805 format, 1806 channelMask, 1807 frameCount, 1808 flags, 1809 CallbackWrapper, 1810 newcbd, 1811 0, // notification frames 1812 mSessionId, 1813 AudioTrack::TRANSFER_CALLBACK, 1814 offloadInfo, 1815 mUid, 1816 mPid, 1817 mAttributes, 1818 doNotReconnect); 1819 } else { 1820 // TODO: Due to buffer memory concerns, we use a max target playback speed 1821 // based on mPlaybackRate at the time of open (instead of kMaxRequiredSpeed), 1822 // also clamping the target speed to 1.0 <= targetSpeed <= kMaxRequiredSpeed. 1823 const float targetSpeed = 1824 std::min(std::max(mPlaybackRate.mSpeed, 1.0f), kMaxRequiredSpeed); 1825 ALOGW_IF(targetSpeed != mPlaybackRate.mSpeed, 1826 "track target speed:%f clamped from playback speed:%f", 1827 targetSpeed, mPlaybackRate.mSpeed); 1828 t = new AudioTrack( 1829 mStreamType, 1830 sampleRate, 1831 format, 1832 channelMask, 1833 frameCount, 1834 flags, 1835 NULL, // callback 1836 NULL, // user data 1837 0, // notification frames 1838 mSessionId, 1839 AudioTrack::TRANSFER_DEFAULT, 1840 NULL, // offload info 1841 mUid, 1842 mPid, 1843 mAttributes, 1844 doNotReconnect, 1845 targetSpeed); 1846 } 1847 1848 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1849 ALOGE("Unable to create audio track"); 1850 delete newcbd; 1851 // t goes out of scope, so reference count drops to zero 1852 return NO_INIT; 1853 } else { 1854 // successful AudioTrack initialization implies a legacy stream type was generated 1855 // from the audio attributes 1856 mStreamType = t->streamType(); 1857 } 1858 } 1859 1860 if (reuse) { 1861 CHECK(mRecycledTrack != NULL); 1862 1863 if (!bothOffloaded) { 1864 if (mRecycledTrack->frameCount() != t->frameCount()) { 1865 ALOGV("framecount differs: %zu/%zu frames", 1866 mRecycledTrack->frameCount(), t->frameCount()); 1867 reuse = false; 1868 } 1869 } 1870 1871 if (reuse) { 1872 ALOGV("chaining to next output and recycling track"); 1873 close_l(); 1874 mTrack = mRecycledTrack; 1875 mRecycledTrack.clear(); 1876 if (mCallbackData != NULL) { 1877 mCallbackData->setOutput(this); 1878 } 1879 delete newcbd; 1880 return updateTrack(); 1881 } 1882 } 1883 1884 // we're not going to reuse the track, unblock and flush it 1885 // this was done earlier if both tracks are offloaded 1886 if (!bothOffloaded) { 1887 deleteRecycledTrack_l(); 1888 } 1889 1890 CHECK((t != NULL) && ((mCallback == NULL) || (newcbd != NULL))); 1891 1892 mCallbackData = newcbd; 1893 ALOGV("setVolume"); 1894 t->setVolume(mLeftVolume, mRightVolume); 1895 1896 mSampleRateHz = sampleRate; 1897 mFlags = flags; 1898 mMsecsPerFrame = 1E3f / (mPlaybackRate.mSpeed * sampleRate); 1899 mFrameSize = t->frameSize(); 1900 mTrack = t; 1901 1902 return updateTrack(); 1903} 1904 1905status_t MediaPlayerService::AudioOutput::updateTrack() { 1906 if (mTrack == NULL) { 1907 return NO_ERROR; 1908 } 1909 1910 status_t res = NO_ERROR; 1911 // Note some output devices may give us a direct track even though we don't specify it. 1912 // Example: Line application b/17459982. 1913 if ((mTrack->getFlags() 1914 & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD | AUDIO_OUTPUT_FLAG_DIRECT)) == 0) { 1915 res = mTrack->setPlaybackRate(mPlaybackRate); 1916 if (res == NO_ERROR) { 1917 mTrack->setAuxEffectSendLevel(mSendLevel); 1918 res = mTrack->attachAuxEffect(mAuxEffectId); 1919 } 1920 } 1921 ALOGV("updateTrack() DONE status %d", res); 1922 return res; 1923} 1924 1925status_t MediaPlayerService::AudioOutput::start() 1926{ 1927 ALOGV("start"); 1928 Mutex::Autolock lock(mLock); 1929 if (mCallbackData != NULL) { 1930 mCallbackData->endTrackSwitch(); 1931 } 1932 if (mTrack != 0) { 1933 mTrack->setVolume(mLeftVolume, mRightVolume); 1934 mTrack->setAuxEffectSendLevel(mSendLevel); 1935 return mTrack->start(); 1936 } 1937 return NO_INIT; 1938} 1939 1940void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) { 1941 Mutex::Autolock lock(mLock); 1942 mNextOutput = nextOutput; 1943} 1944 1945void MediaPlayerService::AudioOutput::switchToNextOutput() { 1946 ALOGV("switchToNextOutput"); 1947 1948 // Try to acquire the callback lock before moving track (without incurring deadlock). 1949 const unsigned kMaxSwitchTries = 100; 1950 Mutex::Autolock lock(mLock); 1951 for (unsigned tries = 0;;) { 1952 if (mTrack == 0) { 1953 return; 1954 } 1955 if (mNextOutput != NULL && mNextOutput != this) { 1956 if (mCallbackData != NULL) { 1957 // two alternative approaches 1958#if 1 1959 CallbackData *callbackData = mCallbackData; 1960 mLock.unlock(); 1961 // proper acquisition sequence 1962 callbackData->lock(); 1963 mLock.lock(); 1964 // Caution: it is unlikely that someone deleted our callback or changed our target 1965 if (callbackData != mCallbackData || mNextOutput == NULL || mNextOutput == this) { 1966 // fatal if we are starved out. 1967 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries, 1968 "switchToNextOutput() cannot obtain correct lock sequence"); 1969 callbackData->unlock(); 1970 continue; 1971 } 1972 callbackData->mSwitching = true; // begin track switch 1973 callbackData->setOutput(NULL); 1974#else 1975 // tryBeginTrackSwitch() returns false if the callback has the lock. 1976 if (!mCallbackData->tryBeginTrackSwitch()) { 1977 // fatal if we are starved out. 1978 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries, 1979 "switchToNextOutput() cannot obtain callback lock"); 1980 mLock.unlock(); 1981 usleep(5 * 1000 /* usec */); // allow callback to use AudioOutput 1982 mLock.lock(); 1983 continue; 1984 } 1985#endif 1986 } 1987 1988 Mutex::Autolock nextLock(mNextOutput->mLock); 1989 1990 // If the next output track is not NULL, then it has been 1991 // opened already for playback. 1992 // This is possible even without the next player being started, 1993 // for example, the next player could be prepared and seeked. 1994 // 1995 // Presuming it isn't advisable to force the track over. 1996 if (mNextOutput->mTrack == NULL) { 1997 ALOGD("Recycling track for gapless playback"); 1998 delete mNextOutput->mCallbackData; 1999 mNextOutput->mCallbackData = mCallbackData; 2000 mNextOutput->mRecycledTrack = mTrack; 2001 mNextOutput->mSampleRateHz = mSampleRateHz; 2002 mNextOutput->mMsecsPerFrame = mMsecsPerFrame; 2003 mNextOutput->mFlags = mFlags; 2004 mNextOutput->mFrameSize = mFrameSize; 2005 close_l(); 2006 mCallbackData = NULL; // destruction handled by mNextOutput 2007 } else { 2008 ALOGW("Ignoring gapless playback because next player has already started"); 2009 // remove track in case resource needed for future players. 2010 if (mCallbackData != NULL) { 2011 mCallbackData->endTrackSwitch(); // release lock for callbacks before close. 2012 } 2013 close_l(); 2014 } 2015 } 2016 break; 2017 } 2018} 2019 2020ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size, bool blocking) 2021{ 2022 Mutex::Autolock lock(mLock); 2023 LOG_ALWAYS_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 2024 2025 //ALOGV("write(%p, %u)", buffer, size); 2026 if (mTrack != 0) { 2027 return mTrack->write(buffer, size, blocking); 2028 } 2029 return NO_INIT; 2030} 2031 2032void MediaPlayerService::AudioOutput::stop() 2033{ 2034 ALOGV("stop"); 2035 Mutex::Autolock lock(mLock); 2036 if (mTrack != 0) mTrack->stop(); 2037} 2038 2039void MediaPlayerService::AudioOutput::flush() 2040{ 2041 ALOGV("flush"); 2042 Mutex::Autolock lock(mLock); 2043 if (mTrack != 0) mTrack->flush(); 2044} 2045 2046void MediaPlayerService::AudioOutput::pause() 2047{ 2048 ALOGV("pause"); 2049 Mutex::Autolock lock(mLock); 2050 if (mTrack != 0) mTrack->pause(); 2051} 2052 2053void MediaPlayerService::AudioOutput::close() 2054{ 2055 ALOGV("close"); 2056 sp<AudioTrack> track; 2057 { 2058 Mutex::Autolock lock(mLock); 2059 track = mTrack; 2060 close_l(); // clears mTrack 2061 } 2062 // destruction of the track occurs outside of mutex. 2063} 2064 2065void MediaPlayerService::AudioOutput::setVolume(float left, float right) 2066{ 2067 ALOGV("setVolume(%f, %f)", left, right); 2068 Mutex::Autolock lock(mLock); 2069 mLeftVolume = left; 2070 mRightVolume = right; 2071 if (mTrack != 0) { 2072 mTrack->setVolume(left, right); 2073 } 2074} 2075 2076status_t MediaPlayerService::AudioOutput::setPlaybackRate(const AudioPlaybackRate &rate) 2077{ 2078 ALOGV("setPlaybackRate(%f %f %d %d)", 2079 rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode); 2080 Mutex::Autolock lock(mLock); 2081 if (mTrack == 0) { 2082 // remember rate so that we can set it when the track is opened 2083 mPlaybackRate = rate; 2084 return OK; 2085 } 2086 status_t res = mTrack->setPlaybackRate(rate); 2087 if (res != NO_ERROR) { 2088 return res; 2089 } 2090 // rate.mSpeed is always greater than 0 if setPlaybackRate succeeded 2091 CHECK_GT(rate.mSpeed, 0.f); 2092 mPlaybackRate = rate; 2093 if (mSampleRateHz != 0) { 2094 mMsecsPerFrame = 1E3f / (rate.mSpeed * mSampleRateHz); 2095 } 2096 return res; 2097} 2098 2099status_t MediaPlayerService::AudioOutput::getPlaybackRate(AudioPlaybackRate *rate) 2100{ 2101 ALOGV("setPlaybackRate"); 2102 Mutex::Autolock lock(mLock); 2103 if (mTrack == 0) { 2104 return NO_INIT; 2105 } 2106 *rate = mTrack->getPlaybackRate(); 2107 return NO_ERROR; 2108} 2109 2110status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level) 2111{ 2112 ALOGV("setAuxEffectSendLevel(%f)", level); 2113 Mutex::Autolock lock(mLock); 2114 mSendLevel = level; 2115 if (mTrack != 0) { 2116 return mTrack->setAuxEffectSendLevel(level); 2117 } 2118 return NO_ERROR; 2119} 2120 2121status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId) 2122{ 2123 ALOGV("attachAuxEffect(%d)", effectId); 2124 Mutex::Autolock lock(mLock); 2125 mAuxEffectId = effectId; 2126 if (mTrack != 0) { 2127 return mTrack->attachAuxEffect(effectId); 2128 } 2129 return NO_ERROR; 2130} 2131 2132// static 2133void MediaPlayerService::AudioOutput::CallbackWrapper( 2134 int event, void *cookie, void *info) { 2135 //ALOGV("callbackwrapper"); 2136 CallbackData *data = (CallbackData*)cookie; 2137 // lock to ensure we aren't caught in the middle of a track switch. 2138 data->lock(); 2139 AudioOutput *me = data->getOutput(); 2140 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 2141 if (me == NULL) { 2142 // no output set, likely because the track was scheduled to be reused 2143 // by another player, but the format turned out to be incompatible. 2144 data->unlock(); 2145 if (buffer != NULL) { 2146 buffer->size = 0; 2147 } 2148 return; 2149 } 2150 2151 switch(event) { 2152 case AudioTrack::EVENT_MORE_DATA: { 2153 size_t actualSize = (*me->mCallback)( 2154 me, buffer->raw, buffer->size, me->mCallbackCookie, 2155 CB_EVENT_FILL_BUFFER); 2156 2157 // Log when no data is returned from the callback. 2158 // (1) We may have no data (especially with network streaming sources). 2159 // (2) We may have reached the EOS and the audio track is not stopped yet. 2160 // Note that AwesomePlayer/AudioPlayer will only return zero size when it reaches the EOS. 2161 // NuPlayerRenderer will return zero when it doesn't have data (it doesn't block to fill). 2162 // 2163 // This is a benign busy-wait, with the next data request generated 10 ms or more later; 2164 // nevertheless for power reasons, we don't want to see too many of these. 2165 2166 ALOGV_IF(actualSize == 0 && buffer->size > 0, "callbackwrapper: empty buffer returned"); 2167 2168 buffer->size = actualSize; 2169 } break; 2170 2171 case AudioTrack::EVENT_STREAM_END: 2172 // currently only occurs for offloaded callbacks 2173 ALOGV("callbackwrapper: deliver EVENT_STREAM_END"); 2174 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 2175 me->mCallbackCookie, CB_EVENT_STREAM_END); 2176 break; 2177 2178 case AudioTrack::EVENT_NEW_IAUDIOTRACK : 2179 ALOGV("callbackwrapper: deliver EVENT_TEAR_DOWN"); 2180 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 2181 me->mCallbackCookie, CB_EVENT_TEAR_DOWN); 2182 break; 2183 2184 case AudioTrack::EVENT_UNDERRUN: 2185 // This occurs when there is no data available, typically 2186 // when there is a failure to supply data to the AudioTrack. It can also 2187 // occur in non-offloaded mode when the audio device comes out of standby. 2188 // 2189 // If an AudioTrack underruns it outputs silence. Since this happens suddenly 2190 // it may sound like an audible pop or glitch. 2191 // 2192 // The underrun event is sent once per track underrun; the condition is reset 2193 // when more data is sent to the AudioTrack. 2194 ALOGD("callbackwrapper: EVENT_UNDERRUN (discarded)"); 2195 break; 2196 2197 default: 2198 ALOGE("received unknown event type: %d inside CallbackWrapper !", event); 2199 } 2200 2201 data->unlock(); 2202} 2203 2204audio_session_t MediaPlayerService::AudioOutput::getSessionId() const 2205{ 2206 Mutex::Autolock lock(mLock); 2207 return mSessionId; 2208} 2209 2210uint32_t MediaPlayerService::AudioOutput::getSampleRate() const 2211{ 2212 Mutex::Autolock lock(mLock); 2213 if (mTrack == 0) return 0; 2214 return mTrack->getSampleRate(); 2215} 2216 2217int64_t MediaPlayerService::AudioOutput::getBufferDurationInUs() const 2218{ 2219 Mutex::Autolock lock(mLock); 2220 if (mTrack == 0) { 2221 return 0; 2222 } 2223 int64_t duration; 2224 if (mTrack->getBufferDurationInUs(&duration) != OK) { 2225 return 0; 2226 } 2227 return duration; 2228} 2229 2230//////////////////////////////////////////////////////////////////////////////// 2231 2232struct CallbackThread : public Thread { 2233 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 2234 MediaPlayerBase::AudioSink::AudioCallback cb, 2235 void *cookie); 2236 2237protected: 2238 virtual ~CallbackThread(); 2239 2240 virtual bool threadLoop(); 2241 2242private: 2243 wp<MediaPlayerBase::AudioSink> mSink; 2244 MediaPlayerBase::AudioSink::AudioCallback mCallback; 2245 void *mCookie; 2246 void *mBuffer; 2247 size_t mBufferSize; 2248 2249 CallbackThread(const CallbackThread &); 2250 CallbackThread &operator=(const CallbackThread &); 2251}; 2252 2253CallbackThread::CallbackThread( 2254 const wp<MediaPlayerBase::AudioSink> &sink, 2255 MediaPlayerBase::AudioSink::AudioCallback cb, 2256 void *cookie) 2257 : mSink(sink), 2258 mCallback(cb), 2259 mCookie(cookie), 2260 mBuffer(NULL), 2261 mBufferSize(0) { 2262} 2263 2264CallbackThread::~CallbackThread() { 2265 if (mBuffer) { 2266 free(mBuffer); 2267 mBuffer = NULL; 2268 } 2269} 2270 2271bool CallbackThread::threadLoop() { 2272 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 2273 if (sink == NULL) { 2274 return false; 2275 } 2276 2277 if (mBuffer == NULL) { 2278 mBufferSize = sink->bufferSize(); 2279 mBuffer = malloc(mBufferSize); 2280 } 2281 2282 size_t actualSize = 2283 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie, 2284 MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER); 2285 2286 if (actualSize > 0) { 2287 sink->write(mBuffer, actualSize); 2288 // Could return false on sink->write() error or short count. 2289 // Not necessarily appropriate but would work for AudioCache behavior. 2290 } 2291 2292 return true; 2293} 2294 2295//////////////////////////////////////////////////////////////////////////////// 2296 2297void MediaPlayerService::addBatteryData(uint32_t params) 2298{ 2299 Mutex::Autolock lock(mLock); 2300 2301 int32_t time = systemTime() / 1000000L; 2302 2303 // change audio output devices. This notification comes from AudioFlinger 2304 if ((params & kBatteryDataSpeakerOn) 2305 || (params & kBatteryDataOtherAudioDeviceOn)) { 2306 2307 int deviceOn[NUM_AUDIO_DEVICES]; 2308 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2309 deviceOn[i] = 0; 2310 } 2311 2312 if ((params & kBatteryDataSpeakerOn) 2313 && (params & kBatteryDataOtherAudioDeviceOn)) { 2314 deviceOn[SPEAKER_AND_OTHER] = 1; 2315 } else if (params & kBatteryDataSpeakerOn) { 2316 deviceOn[SPEAKER] = 1; 2317 } else { 2318 deviceOn[OTHER_AUDIO_DEVICE] = 1; 2319 } 2320 2321 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2322 if (mBatteryAudio.deviceOn[i] != deviceOn[i]){ 2323 2324 if (mBatteryAudio.refCount > 0) { // if playing audio 2325 if (!deviceOn[i]) { 2326 mBatteryAudio.lastTime[i] += time; 2327 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2328 mBatteryAudio.lastTime[i] = 0; 2329 } else { 2330 mBatteryAudio.lastTime[i] = 0 - time; 2331 } 2332 } 2333 2334 mBatteryAudio.deviceOn[i] = deviceOn[i]; 2335 } 2336 } 2337 return; 2338 } 2339 2340 // an audio stream is started 2341 if (params & kBatteryDataAudioFlingerStart) { 2342 // record the start time only if currently no other audio 2343 // is being played 2344 if (mBatteryAudio.refCount == 0) { 2345 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2346 if (mBatteryAudio.deviceOn[i]) { 2347 mBatteryAudio.lastTime[i] -= time; 2348 } 2349 } 2350 } 2351 2352 mBatteryAudio.refCount ++; 2353 return; 2354 2355 } else if (params & kBatteryDataAudioFlingerStop) { 2356 if (mBatteryAudio.refCount <= 0) { 2357 ALOGW("Battery track warning: refCount is <= 0"); 2358 return; 2359 } 2360 2361 // record the stop time only if currently this is the only 2362 // audio being played 2363 if (mBatteryAudio.refCount == 1) { 2364 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2365 if (mBatteryAudio.deviceOn[i]) { 2366 mBatteryAudio.lastTime[i] += time; 2367 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2368 mBatteryAudio.lastTime[i] = 0; 2369 } 2370 } 2371 } 2372 2373 mBatteryAudio.refCount --; 2374 return; 2375 } 2376 2377 uid_t uid = IPCThreadState::self()->getCallingUid(); 2378 if (uid == AID_MEDIA) { 2379 return; 2380 } 2381 int index = mBatteryData.indexOfKey(uid); 2382 2383 if (index < 0) { // create a new entry for this UID 2384 BatteryUsageInfo info; 2385 info.audioTotalTime = 0; 2386 info.videoTotalTime = 0; 2387 info.audioLastTime = 0; 2388 info.videoLastTime = 0; 2389 info.refCount = 0; 2390 2391 if (mBatteryData.add(uid, info) == NO_MEMORY) { 2392 ALOGE("Battery track error: no memory for new app"); 2393 return; 2394 } 2395 } 2396 2397 BatteryUsageInfo &info = mBatteryData.editValueFor(uid); 2398 2399 if (params & kBatteryDataCodecStarted) { 2400 if (params & kBatteryDataTrackAudio) { 2401 info.audioLastTime -= time; 2402 info.refCount ++; 2403 } 2404 if (params & kBatteryDataTrackVideo) { 2405 info.videoLastTime -= time; 2406 info.refCount ++; 2407 } 2408 } else { 2409 if (info.refCount == 0) { 2410 ALOGW("Battery track warning: refCount is already 0"); 2411 return; 2412 } else if (info.refCount < 0) { 2413 ALOGE("Battery track error: refCount < 0"); 2414 mBatteryData.removeItem(uid); 2415 return; 2416 } 2417 2418 if (params & kBatteryDataTrackAudio) { 2419 info.audioLastTime += time; 2420 info.refCount --; 2421 } 2422 if (params & kBatteryDataTrackVideo) { 2423 info.videoLastTime += time; 2424 info.refCount --; 2425 } 2426 2427 // no stream is being played by this UID 2428 if (info.refCount == 0) { 2429 info.audioTotalTime += info.audioLastTime; 2430 info.audioLastTime = 0; 2431 info.videoTotalTime += info.videoLastTime; 2432 info.videoLastTime = 0; 2433 } 2434 } 2435} 2436 2437status_t MediaPlayerService::pullBatteryData(Parcel* reply) { 2438 Mutex::Autolock lock(mLock); 2439 2440 // audio output devices usage 2441 int32_t time = systemTime() / 1000000L; //in ms 2442 int32_t totalTime; 2443 2444 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2445 totalTime = mBatteryAudio.totalTime[i]; 2446 2447 if (mBatteryAudio.deviceOn[i] 2448 && (mBatteryAudio.lastTime[i] != 0)) { 2449 int32_t tmpTime = mBatteryAudio.lastTime[i] + time; 2450 totalTime += tmpTime; 2451 } 2452 2453 reply->writeInt32(totalTime); 2454 // reset the total time 2455 mBatteryAudio.totalTime[i] = 0; 2456 } 2457 2458 // codec usage 2459 BatteryUsageInfo info; 2460 int size = mBatteryData.size(); 2461 2462 reply->writeInt32(size); 2463 int i = 0; 2464 2465 while (i < size) { 2466 info = mBatteryData.valueAt(i); 2467 2468 reply->writeInt32(mBatteryData.keyAt(i)); //UID 2469 reply->writeInt32(info.audioTotalTime); 2470 reply->writeInt32(info.videoTotalTime); 2471 2472 info.audioTotalTime = 0; 2473 info.videoTotalTime = 0; 2474 2475 // remove the UID entry where no stream is being played 2476 if (info.refCount <= 0) { 2477 mBatteryData.removeItemsAt(i); 2478 size --; 2479 i --; 2480 } 2481 i++; 2482 } 2483 return NO_ERROR; 2484} 2485} // namespace android 2486