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 85 namespace { 86 using android::media::Metadata; 87 using android::status_t; 88 using android::OK; 89 using android::BAD_VALUE; 90 using android::NOT_ENOUGH_DATA; 91 using android::Parcel; 92 93 // Max number of entries in the filter. 94 const int kMaxFilterSize = 64; // I pulled that out of thin air. 95 96 const 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. 122 bool 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. 181 bool 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 191 192 193 namespace { 194 using android::Parcel; 195 using android::String16; 196 197 // marshalling tag indicating flattened utf16 tags 198 // keep in sync with frameworks/base/media/java/android/media/AudioAttributes.java 199 const 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. 222 void 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 249 250 251 namespace android { 252 253 extern ALooperRoster gLooperRoster; 254 255 256 static 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; 266 267 void MediaPlayerService::instantiate() { 268 defaultServiceManager()->addService( 269 String16("media.player"), new MediaPlayerService()); 270 } 271 272 MediaPlayerService::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 } 293 294 MediaPlayerService::~MediaPlayerService() 295 { 296 ALOGV("MediaPlayerService destroyed"); 297 } 298 299 sp<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 } 309 310 void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client) 311 { 312 Mutex::Autolock lock(mLock); 313 mMediaRecorderClients.remove(client); 314 ALOGV("Delete media recorder client"); 315 } 316 317 sp<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 } 324 325 sp<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 } 345 346 sp<IMediaCodecList> MediaPlayerService::getCodecList() const { 347 return MediaCodecList::getLocalInstance(); 348 } 349 350 sp<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 } 360 361 sp<IHDCP> MediaPlayerService::makeHDCP(bool createEncryptionModule) { 362 return new HDCP(createEncryptionModule); 363 } 364 365 sp<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 } 374 375 status_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 } 398 399 status_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 */ 423 status_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 } 554 555 void MediaPlayerService::removeClient(wp<Client> client) 556 { 557 Mutex::Autolock lock(mLock); 558 mClients.remove(client); 559 } 560 561 bool MediaPlayerService::hasClient(wp<Client> client) 562 { 563 Mutex::Autolock lock(mLock); 564 return mClients.indexOf(client) != NAME_NOT_FOUND; 565 } 566 567 MediaPlayerService::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 } 589 590 MediaPlayerService::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 } 601 602 void 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 } 632 633 sp<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 } 651 652 MediaPlayerService::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 } 660 661 MediaPlayerService::Client::ServiceDeathNotifier::~ServiceDeathNotifier() { 662 mService->unlinkToDeath(this); 663 } 664 665 void 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 } 673 674 sp<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 mExtractorDeathListener = new ServiceDeathNotifier(binder, p, MEDIAEXTRACTOR_PROCESS_DEATH); 688 binder->linkToDeath(mExtractorDeathListener); 689 690 binder = sm->getService(String16("media.codec")); 691 mCodecDeathListener = new ServiceDeathNotifier(binder, p, MEDIACODEC_PROCESS_DEATH); 692 binder->linkToDeath(mCodecDeathListener); 693 694 if (!p->hardwareOutput()) { 695 Mutex::Autolock l(mLock); 696 mAudioOutput = new AudioOutput(mAudioSessionId, IPCThreadState::self()->getCallingUid(), 697 mPid, mAudioAttributes); 698 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 699 } 700 701 return p; 702 } 703 704 void MediaPlayerService::Client::setDataSource_post( 705 const sp<MediaPlayerBase>& p, 706 status_t status) 707 { 708 ALOGV(" setDataSource"); 709 mStatus = status; 710 if (mStatus != OK) { 711 ALOGE(" error: %d", mStatus); 712 return; 713 } 714 715 // Set the re-transmission endpoint if one was chosen. 716 if (mRetransmitEndpointValid) { 717 mStatus = p->setRetransmitEndpoint(&mRetransmitEndpoint); 718 if (mStatus != NO_ERROR) { 719 ALOGE("setRetransmitEndpoint error: %d", mStatus); 720 } 721 } 722 723 if (mStatus == OK) { 724 mPlayer = p; 725 } 726 } 727 728 status_t MediaPlayerService::Client::setDataSource( 729 const sp<IMediaHTTPService> &httpService, 730 const char *url, 731 const KeyedVector<String8, String8> *headers) 732 { 733 ALOGV("setDataSource(%s)", url); 734 if (url == NULL) 735 return UNKNOWN_ERROR; 736 737 if ((strncmp(url, "http://", 7) == 0) || 738 (strncmp(url, "https://", 8) == 0) || 739 (strncmp(url, "rtsp://", 7) == 0)) { 740 if (!checkPermission("android.permission.INTERNET")) { 741 return PERMISSION_DENIED; 742 } 743 } 744 745 if (strncmp(url, "content://", 10) == 0) { 746 // get a filedescriptor for the content Uri and 747 // pass it to the setDataSource(fd) method 748 749 String16 url16(url); 750 int fd = android::openContentProviderFile(url16); 751 if (fd < 0) 752 { 753 ALOGE("Couldn't open fd for %s", url); 754 return UNKNOWN_ERROR; 755 } 756 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 757 close(fd); 758 return mStatus; 759 } else { 760 player_type playerType = MediaPlayerFactory::getPlayerType(this, url); 761 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 762 if (p == NULL) { 763 return NO_INIT; 764 } 765 766 setDataSource_post(p, p->setDataSource(httpService, url, headers)); 767 return mStatus; 768 } 769 } 770 771 status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 772 { 773 ALOGV("setDataSource fd=%d (%s), offset=%lld, length=%lld", 774 fd, nameForFd(fd).c_str(), (long long) offset, (long long) length); 775 struct stat sb; 776 int ret = fstat(fd, &sb); 777 if (ret != 0) { 778 ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 779 return UNKNOWN_ERROR; 780 } 781 782 ALOGV("st_dev = %llu", static_cast<unsigned long long>(sb.st_dev)); 783 ALOGV("st_mode = %u", sb.st_mode); 784 ALOGV("st_uid = %lu", static_cast<unsigned long>(sb.st_uid)); 785 ALOGV("st_gid = %lu", static_cast<unsigned long>(sb.st_gid)); 786 ALOGV("st_size = %llu", static_cast<unsigned long long>(sb.st_size)); 787 788 if (offset >= sb.st_size) { 789 ALOGE("offset error"); 790 return UNKNOWN_ERROR; 791 } 792 if (offset + length > sb.st_size) { 793 length = sb.st_size - offset; 794 ALOGV("calculated length = %lld", (long long)length); 795 } 796 797 player_type playerType = MediaPlayerFactory::getPlayerType(this, 798 fd, 799 offset, 800 length); 801 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 802 if (p == NULL) { 803 return NO_INIT; 804 } 805 806 // now set data source 807 setDataSource_post(p, p->setDataSource(fd, offset, length)); 808 return mStatus; 809 } 810 811 status_t MediaPlayerService::Client::setDataSource( 812 const sp<IStreamSource> &source) { 813 // create the right type of player 814 player_type playerType = MediaPlayerFactory::getPlayerType(this, source); 815 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 816 if (p == NULL) { 817 return NO_INIT; 818 } 819 820 // now set data source 821 setDataSource_post(p, p->setDataSource(source)); 822 return mStatus; 823 } 824 825 status_t MediaPlayerService::Client::setDataSource( 826 const sp<IDataSource> &source) { 827 sp<DataSource> dataSource = DataSource::CreateFromIDataSource(source); 828 player_type playerType = MediaPlayerFactory::getPlayerType(this, dataSource); 829 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 830 if (p == NULL) { 831 return NO_INIT; 832 } 833 // now set data source 834 setDataSource_post(p, p->setDataSource(dataSource)); 835 return mStatus; 836 } 837 838 void MediaPlayerService::Client::disconnectNativeWindow() { 839 if (mConnectedWindow != NULL) { 840 status_t err = native_window_api_disconnect(mConnectedWindow.get(), 841 NATIVE_WINDOW_API_MEDIA); 842 843 if (err != OK) { 844 ALOGW("native_window_api_disconnect returned an error: %s (%d)", 845 strerror(-err), err); 846 } 847 } 848 mConnectedWindow.clear(); 849 } 850 851 status_t MediaPlayerService::Client::setVideoSurfaceTexture( 852 const sp<IGraphicBufferProducer>& bufferProducer) 853 { 854 ALOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, bufferProducer.get()); 855 sp<MediaPlayerBase> p = getPlayer(); 856 if (p == 0) return UNKNOWN_ERROR; 857 858 sp<IBinder> binder(IInterface::asBinder(bufferProducer)); 859 if (mConnectedWindowBinder == binder) { 860 return OK; 861 } 862 863 sp<ANativeWindow> anw; 864 if (bufferProducer != NULL) { 865 anw = new Surface(bufferProducer, true /* controlledByApp */); 866 status_t err = native_window_api_connect(anw.get(), 867 NATIVE_WINDOW_API_MEDIA); 868 869 if (err != OK) { 870 ALOGE("setVideoSurfaceTexture failed: %d", err); 871 // Note that we must do the reset before disconnecting from the ANW. 872 // Otherwise queue/dequeue calls could be made on the disconnected 873 // ANW, which may result in errors. 874 reset(); 875 876 disconnectNativeWindow(); 877 878 return err; 879 } 880 } 881 882 // Note that we must set the player's new GraphicBufferProducer before 883 // disconnecting the old one. Otherwise queue/dequeue calls could be made 884 // on the disconnected ANW, which may result in errors. 885 status_t err = p->setVideoSurfaceTexture(bufferProducer); 886 887 disconnectNativeWindow(); 888 889 mConnectedWindow = anw; 890 891 if (err == OK) { 892 mConnectedWindowBinder = binder; 893 } else { 894 disconnectNativeWindow(); 895 } 896 897 return err; 898 } 899 900 status_t MediaPlayerService::Client::invoke(const Parcel& request, 901 Parcel *reply) 902 { 903 sp<MediaPlayerBase> p = getPlayer(); 904 if (p == NULL) return UNKNOWN_ERROR; 905 return p->invoke(request, reply); 906 } 907 908 // This call doesn't need to access the native player. 909 status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 910 { 911 status_t status; 912 media::Metadata::Filter allow, drop; 913 914 if (unmarshallFilter(filter, &allow, &status) && 915 unmarshallFilter(filter, &drop, &status)) { 916 Mutex::Autolock lock(mLock); 917 918 mMetadataAllow = allow; 919 mMetadataDrop = drop; 920 } 921 return status; 922 } 923 924 status_t MediaPlayerService::Client::getMetadata( 925 bool update_only, bool /*apply_filter*/, Parcel *reply) 926 { 927 sp<MediaPlayerBase> player = getPlayer(); 928 if (player == 0) return UNKNOWN_ERROR; 929 930 status_t status; 931 // Placeholder for the return code, updated by the caller. 932 reply->writeInt32(-1); 933 934 media::Metadata::Filter ids; 935 936 // We don't block notifications while we fetch the data. We clear 937 // mMetadataUpdated first so we don't lose notifications happening 938 // during the rest of this call. 939 { 940 Mutex::Autolock lock(mLock); 941 if (update_only) { 942 ids = mMetadataUpdated; 943 } 944 mMetadataUpdated.clear(); 945 } 946 947 media::Metadata metadata(reply); 948 949 metadata.appendHeader(); 950 status = player->getMetadata(ids, reply); 951 952 if (status != OK) { 953 metadata.resetParcel(); 954 ALOGE("getMetadata failed %d", status); 955 return status; 956 } 957 958 // FIXME: Implement filtering on the result. Not critical since 959 // filtering takes place on the update notifications already. This 960 // would be when all the metadata are fetch and a filter is set. 961 962 // Everything is fine, update the metadata length. 963 metadata.updateLength(); 964 return OK; 965 } 966 967 status_t MediaPlayerService::Client::prepareAsync() 968 { 969 ALOGV("[%d] prepareAsync", mConnId); 970 sp<MediaPlayerBase> p = getPlayer(); 971 if (p == 0) return UNKNOWN_ERROR; 972 status_t ret = p->prepareAsync(); 973 #if CALLBACK_ANTAGONIZER 974 ALOGD("start Antagonizer"); 975 if (ret == NO_ERROR) mAntagonizer->start(); 976 #endif 977 return ret; 978 } 979 980 status_t MediaPlayerService::Client::start() 981 { 982 ALOGV("[%d] start", mConnId); 983 sp<MediaPlayerBase> p = getPlayer(); 984 if (p == 0) return UNKNOWN_ERROR; 985 p->setLooping(mLoop); 986 return p->start(); 987 } 988 989 status_t MediaPlayerService::Client::stop() 990 { 991 ALOGV("[%d] stop", mConnId); 992 sp<MediaPlayerBase> p = getPlayer(); 993 if (p == 0) return UNKNOWN_ERROR; 994 return p->stop(); 995 } 996 997 status_t MediaPlayerService::Client::pause() 998 { 999 ALOGV("[%d] pause", mConnId); 1000 sp<MediaPlayerBase> p = getPlayer(); 1001 if (p == 0) return UNKNOWN_ERROR; 1002 return p->pause(); 1003 } 1004 1005 status_t MediaPlayerService::Client::isPlaying(bool* state) 1006 { 1007 *state = false; 1008 sp<MediaPlayerBase> p = getPlayer(); 1009 if (p == 0) return UNKNOWN_ERROR; 1010 *state = p->isPlaying(); 1011 ALOGV("[%d] isPlaying: %d", mConnId, *state); 1012 return NO_ERROR; 1013 } 1014 1015 status_t MediaPlayerService::Client::setPlaybackSettings(const AudioPlaybackRate& rate) 1016 { 1017 ALOGV("[%d] setPlaybackSettings(%f, %f, %d, %d)", 1018 mConnId, rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode); 1019 sp<MediaPlayerBase> p = getPlayer(); 1020 if (p == 0) return UNKNOWN_ERROR; 1021 return p->setPlaybackSettings(rate); 1022 } 1023 1024 status_t MediaPlayerService::Client::getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */) 1025 { 1026 sp<MediaPlayerBase> p = getPlayer(); 1027 if (p == 0) return UNKNOWN_ERROR; 1028 status_t ret = p->getPlaybackSettings(rate); 1029 if (ret == NO_ERROR) { 1030 ALOGV("[%d] getPlaybackSettings(%f, %f, %d, %d)", 1031 mConnId, rate->mSpeed, rate->mPitch, rate->mFallbackMode, rate->mStretchMode); 1032 } else { 1033 ALOGV("[%d] getPlaybackSettings returned %d", mConnId, ret); 1034 } 1035 return ret; 1036 } 1037 1038 status_t MediaPlayerService::Client::setSyncSettings( 1039 const AVSyncSettings& sync, float videoFpsHint) 1040 { 1041 ALOGV("[%d] setSyncSettings(%u, %u, %f, %f)", 1042 mConnId, sync.mSource, sync.mAudioAdjustMode, sync.mTolerance, videoFpsHint); 1043 sp<MediaPlayerBase> p = getPlayer(); 1044 if (p == 0) return UNKNOWN_ERROR; 1045 return p->setSyncSettings(sync, videoFpsHint); 1046 } 1047 1048 status_t MediaPlayerService::Client::getSyncSettings( 1049 AVSyncSettings* sync /* nonnull */, float* videoFps /* nonnull */) 1050 { 1051 sp<MediaPlayerBase> p = getPlayer(); 1052 if (p == 0) return UNKNOWN_ERROR; 1053 status_t ret = p->getSyncSettings(sync, videoFps); 1054 if (ret == NO_ERROR) { 1055 ALOGV("[%d] getSyncSettings(%u, %u, %f, %f)", 1056 mConnId, sync->mSource, sync->mAudioAdjustMode, sync->mTolerance, *videoFps); 1057 } else { 1058 ALOGV("[%d] getSyncSettings returned %d", mConnId, ret); 1059 } 1060 return ret; 1061 } 1062 1063 status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 1064 { 1065 ALOGV("getCurrentPosition"); 1066 sp<MediaPlayerBase> p = getPlayer(); 1067 if (p == 0) return UNKNOWN_ERROR; 1068 status_t ret = p->getCurrentPosition(msec); 1069 if (ret == NO_ERROR) { 1070 ALOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 1071 } else { 1072 ALOGE("getCurrentPosition returned %d", ret); 1073 } 1074 return ret; 1075 } 1076 1077 status_t MediaPlayerService::Client::getDuration(int *msec) 1078 { 1079 ALOGV("getDuration"); 1080 sp<MediaPlayerBase> p = getPlayer(); 1081 if (p == 0) return UNKNOWN_ERROR; 1082 status_t ret = p->getDuration(msec); 1083 if (ret == NO_ERROR) { 1084 ALOGV("[%d] getDuration = %d", mConnId, *msec); 1085 } else { 1086 ALOGE("getDuration returned %d", ret); 1087 } 1088 return ret; 1089 } 1090 1091 status_t MediaPlayerService::Client::setNextPlayer(const sp<IMediaPlayer>& player) { 1092 ALOGV("setNextPlayer"); 1093 Mutex::Autolock l(mLock); 1094 sp<Client> c = static_cast<Client*>(player.get()); 1095 if (c != NULL && !mService->hasClient(c)) { 1096 return BAD_VALUE; 1097 } 1098 1099 mNextClient = c; 1100 1101 if (c != NULL) { 1102 if (mAudioOutput != NULL) { 1103 mAudioOutput->setNextOutput(c->mAudioOutput); 1104 } else if ((mPlayer != NULL) && !mPlayer->hardwareOutput()) { 1105 ALOGE("no current audio output"); 1106 } 1107 1108 if ((mPlayer != NULL) && (mNextClient->getPlayer() != NULL)) { 1109 mPlayer->setNextPlayer(mNextClient->getPlayer()); 1110 } 1111 } 1112 1113 return OK; 1114 } 1115 1116 status_t MediaPlayerService::Client::seekTo(int msec) 1117 { 1118 ALOGV("[%d] seekTo(%d)", mConnId, msec); 1119 sp<MediaPlayerBase> p = getPlayer(); 1120 if (p == 0) return UNKNOWN_ERROR; 1121 return p->seekTo(msec); 1122 } 1123 1124 status_t MediaPlayerService::Client::reset() 1125 { 1126 ALOGV("[%d] reset", mConnId); 1127 mRetransmitEndpointValid = false; 1128 sp<MediaPlayerBase> p = getPlayer(); 1129 if (p == 0) return UNKNOWN_ERROR; 1130 return p->reset(); 1131 } 1132 1133 status_t MediaPlayerService::Client::setAudioStreamType(audio_stream_type_t type) 1134 { 1135 ALOGV("[%d] setAudioStreamType(%d)", mConnId, type); 1136 // TODO: for hardware output, call player instead 1137 Mutex::Autolock l(mLock); 1138 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 1139 return NO_ERROR; 1140 } 1141 1142 status_t MediaPlayerService::Client::setAudioAttributes_l(const Parcel &parcel) 1143 { 1144 if (mAudioAttributes != NULL) { free(mAudioAttributes); } 1145 mAudioAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1146 if (mAudioAttributes == NULL) { 1147 return NO_MEMORY; 1148 } 1149 unmarshallAudioAttributes(parcel, mAudioAttributes); 1150 1151 ALOGV("setAudioAttributes_l() usage=%d content=%d flags=0x%x tags=%s", 1152 mAudioAttributes->usage, mAudioAttributes->content_type, mAudioAttributes->flags, 1153 mAudioAttributes->tags); 1154 1155 if (mAudioOutput != 0) { 1156 mAudioOutput->setAudioAttributes(mAudioAttributes); 1157 } 1158 return NO_ERROR; 1159 } 1160 1161 status_t MediaPlayerService::Client::setLooping(int loop) 1162 { 1163 ALOGV("[%d] setLooping(%d)", mConnId, loop); 1164 mLoop = loop; 1165 sp<MediaPlayerBase> p = getPlayer(); 1166 if (p != 0) return p->setLooping(loop); 1167 return NO_ERROR; 1168 } 1169 1170 status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1171 { 1172 ALOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1173 1174 // for hardware output, call player instead 1175 sp<MediaPlayerBase> p = getPlayer(); 1176 { 1177 Mutex::Autolock l(mLock); 1178 if (p != 0 && p->hardwareOutput()) { 1179 MediaPlayerHWInterface* hwp = 1180 reinterpret_cast<MediaPlayerHWInterface*>(p.get()); 1181 return hwp->setVolume(leftVolume, rightVolume); 1182 } else { 1183 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1184 return NO_ERROR; 1185 } 1186 } 1187 1188 return NO_ERROR; 1189 } 1190 1191 status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level) 1192 { 1193 ALOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level); 1194 Mutex::Autolock l(mLock); 1195 if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level); 1196 return NO_ERROR; 1197 } 1198 1199 status_t MediaPlayerService::Client::attachAuxEffect(int effectId) 1200 { 1201 ALOGV("[%d] attachAuxEffect(%d)", mConnId, effectId); 1202 Mutex::Autolock l(mLock); 1203 if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId); 1204 return NO_ERROR; 1205 } 1206 1207 status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) { 1208 ALOGV("[%d] setParameter(%d)", mConnId, key); 1209 switch (key) { 1210 case KEY_PARAMETER_AUDIO_ATTRIBUTES: 1211 { 1212 Mutex::Autolock l(mLock); 1213 return setAudioAttributes_l(request); 1214 } 1215 default: 1216 sp<MediaPlayerBase> p = getPlayer(); 1217 if (p == 0) { return UNKNOWN_ERROR; } 1218 return p->setParameter(key, request); 1219 } 1220 } 1221 1222 status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) { 1223 ALOGV("[%d] getParameter(%d)", mConnId, key); 1224 sp<MediaPlayerBase> p = getPlayer(); 1225 if (p == 0) return UNKNOWN_ERROR; 1226 return p->getParameter(key, reply); 1227 } 1228 1229 status_t MediaPlayerService::Client::setRetransmitEndpoint( 1230 const struct sockaddr_in* endpoint) { 1231 1232 if (NULL != endpoint) { 1233 uint32_t a = ntohl(endpoint->sin_addr.s_addr); 1234 uint16_t p = ntohs(endpoint->sin_port); 1235 ALOGV("[%d] setRetransmitEndpoint(%u.%u.%u.%u:%hu)", mConnId, 1236 (a >> 24), (a >> 16) & 0xFF, (a >> 8) & 0xFF, (a & 0xFF), p); 1237 } else { 1238 ALOGV("[%d] setRetransmitEndpoint = <none>", mConnId); 1239 } 1240 1241 sp<MediaPlayerBase> p = getPlayer(); 1242 1243 // Right now, the only valid time to set a retransmit endpoint is before 1244 // player selection has been made (since the presence or absence of a 1245 // retransmit endpoint is going to determine which player is selected during 1246 // setDataSource). 1247 if (p != 0) return INVALID_OPERATION; 1248 1249 if (NULL != endpoint) { 1250 mRetransmitEndpoint = *endpoint; 1251 mRetransmitEndpointValid = true; 1252 } else { 1253 mRetransmitEndpointValid = false; 1254 } 1255 1256 return NO_ERROR; 1257 } 1258 1259 status_t MediaPlayerService::Client::getRetransmitEndpoint( 1260 struct sockaddr_in* endpoint) 1261 { 1262 if (NULL == endpoint) 1263 return BAD_VALUE; 1264 1265 sp<MediaPlayerBase> p = getPlayer(); 1266 1267 if (p != NULL) 1268 return p->getRetransmitEndpoint(endpoint); 1269 1270 if (!mRetransmitEndpointValid) 1271 return NO_INIT; 1272 1273 *endpoint = mRetransmitEndpoint; 1274 1275 return NO_ERROR; 1276 } 1277 1278 void MediaPlayerService::Client::notify( 1279 void* cookie, int msg, int ext1, int ext2, const Parcel *obj) 1280 { 1281 Client* client = static_cast<Client*>(cookie); 1282 if (client == NULL) { 1283 return; 1284 } 1285 1286 sp<IMediaPlayerClient> c; 1287 { 1288 Mutex::Autolock l(client->mLock); 1289 c = client->mClient; 1290 if (msg == MEDIA_PLAYBACK_COMPLETE && client->mNextClient != NULL) { 1291 if (client->mAudioOutput != NULL) 1292 client->mAudioOutput->switchToNextOutput(); 1293 client->mNextClient->start(); 1294 if (client->mNextClient->mClient != NULL) { 1295 client->mNextClient->mClient->notify( 1296 MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj); 1297 } 1298 } 1299 } 1300 1301 if (MEDIA_INFO == msg && 1302 MEDIA_INFO_METADATA_UPDATE == ext1) { 1303 const media::Metadata::Type metadata_type = ext2; 1304 1305 if(client->shouldDropMetadata(metadata_type)) { 1306 return; 1307 } 1308 1309 // Update the list of metadata that have changed. getMetadata 1310 // also access mMetadataUpdated and clears it. 1311 client->addNewMetadataUpdate(metadata_type); 1312 } 1313 1314 if (c != NULL) { 1315 ALOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1316 c->notify(msg, ext1, ext2, obj); 1317 } 1318 } 1319 1320 1321 bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1322 { 1323 Mutex::Autolock lock(mLock); 1324 1325 if (findMetadata(mMetadataDrop, code)) { 1326 return true; 1327 } 1328 1329 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1330 return false; 1331 } else { 1332 return true; 1333 } 1334 } 1335 1336 1337 void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1338 Mutex::Autolock lock(mLock); 1339 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1340 mMetadataUpdated.add(metadata_type); 1341 } 1342 } 1343 1344 #if CALLBACK_ANTAGONIZER 1345 const int Antagonizer::interval = 10000; // 10 msecs 1346 1347 Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1348 mExit(false), mActive(false), mClient(client), mCb(cb) 1349 { 1350 createThread(callbackThread, this); 1351 } 1352 1353 void Antagonizer::kill() 1354 { 1355 Mutex::Autolock _l(mLock); 1356 mActive = false; 1357 mExit = true; 1358 mCondition.wait(mLock); 1359 } 1360 1361 int Antagonizer::callbackThread(void* user) 1362 { 1363 ALOGD("Antagonizer started"); 1364 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1365 while (!p->mExit) { 1366 if (p->mActive) { 1367 ALOGV("send event"); 1368 p->mCb(p->mClient, 0, 0, 0); 1369 } 1370 usleep(interval); 1371 } 1372 Mutex::Autolock _l(p->mLock); 1373 p->mCondition.signal(); 1374 ALOGD("Antagonizer stopped"); 1375 return 0; 1376 } 1377 #endif 1378 1379 #undef LOG_TAG 1380 #define LOG_TAG "AudioSink" 1381 MediaPlayerService::AudioOutput::AudioOutput(audio_session_t sessionId, int uid, int pid, 1382 const audio_attributes_t* attr) 1383 : mCallback(NULL), 1384 mCallbackCookie(NULL), 1385 mCallbackData(NULL), 1386 mStreamType(AUDIO_STREAM_MUSIC), 1387 mLeftVolume(1.0), 1388 mRightVolume(1.0), 1389 mPlaybackRate(AUDIO_PLAYBACK_RATE_DEFAULT), 1390 mSampleRateHz(0), 1391 mMsecsPerFrame(0), 1392 mFrameSize(0), 1393 mSessionId(sessionId), 1394 mUid(uid), 1395 mPid(pid), 1396 mSendLevel(0.0), 1397 mAuxEffectId(0), 1398 mFlags(AUDIO_OUTPUT_FLAG_NONE) 1399 { 1400 ALOGV("AudioOutput(%d)", sessionId); 1401 if (attr != NULL) { 1402 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1403 if (mAttributes != NULL) { 1404 memcpy(mAttributes, attr, sizeof(audio_attributes_t)); 1405 mStreamType = audio_attributes_to_stream_type(attr); 1406 } 1407 } else { 1408 mAttributes = NULL; 1409 } 1410 1411 setMinBufferCount(); 1412 } 1413 1414 MediaPlayerService::AudioOutput::~AudioOutput() 1415 { 1416 close(); 1417 free(mAttributes); 1418 delete mCallbackData; 1419 } 1420 1421 //static 1422 void MediaPlayerService::AudioOutput::setMinBufferCount() 1423 { 1424 char value[PROPERTY_VALUE_MAX]; 1425 if (property_get("ro.kernel.qemu", value, 0)) { 1426 mIsOnEmulator = true; 1427 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1428 } 1429 } 1430 1431 // static 1432 bool MediaPlayerService::AudioOutput::isOnEmulator() 1433 { 1434 setMinBufferCount(); // benign race wrt other threads 1435 return mIsOnEmulator; 1436 } 1437 1438 // static 1439 int MediaPlayerService::AudioOutput::getMinBufferCount() 1440 { 1441 setMinBufferCount(); // benign race wrt other threads 1442 return mMinBufferCount; 1443 } 1444 1445 ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1446 { 1447 Mutex::Autolock lock(mLock); 1448 if (mTrack == 0) return NO_INIT; 1449 return mTrack->frameCount() * mFrameSize; 1450 } 1451 1452 ssize_t MediaPlayerService::AudioOutput::frameCount() const 1453 { 1454 Mutex::Autolock lock(mLock); 1455 if (mTrack == 0) return NO_INIT; 1456 return mTrack->frameCount(); 1457 } 1458 1459 ssize_t MediaPlayerService::AudioOutput::channelCount() const 1460 { 1461 Mutex::Autolock lock(mLock); 1462 if (mTrack == 0) return NO_INIT; 1463 return mTrack->channelCount(); 1464 } 1465 1466 ssize_t MediaPlayerService::AudioOutput::frameSize() const 1467 { 1468 Mutex::Autolock lock(mLock); 1469 if (mTrack == 0) return NO_INIT; 1470 return mFrameSize; 1471 } 1472 1473 uint32_t MediaPlayerService::AudioOutput::latency () const 1474 { 1475 Mutex::Autolock lock(mLock); 1476 if (mTrack == 0) return 0; 1477 return mTrack->latency(); 1478 } 1479 1480 float MediaPlayerService::AudioOutput::msecsPerFrame() const 1481 { 1482 Mutex::Autolock lock(mLock); 1483 return mMsecsPerFrame; 1484 } 1485 1486 status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) const 1487 { 1488 Mutex::Autolock lock(mLock); 1489 if (mTrack == 0) return NO_INIT; 1490 return mTrack->getPosition(position); 1491 } 1492 1493 status_t MediaPlayerService::AudioOutput::getTimestamp(AudioTimestamp &ts) const 1494 { 1495 Mutex::Autolock lock(mLock); 1496 if (mTrack == 0) return NO_INIT; 1497 return mTrack->getTimestamp(ts); 1498 } 1499 1500 // TODO: Remove unnecessary calls to getPlayedOutDurationUs() 1501 // as it acquires locks and may query the audio driver. 1502 // 1503 // Some calls could conceivably retrieve extrapolated data instead of 1504 // accessing getTimestamp() or getPosition() every time a data buffer with 1505 // a media time is received. 1506 // 1507 // Calculate duration of played samples if played at normal rate (i.e., 1.0). 1508 int64_t MediaPlayerService::AudioOutput::getPlayedOutDurationUs(int64_t nowUs) const 1509 { 1510 Mutex::Autolock lock(mLock); 1511 if (mTrack == 0 || mSampleRateHz == 0) { 1512 return 0; 1513 } 1514 1515 uint32_t numFramesPlayed; 1516 int64_t numFramesPlayedAt; 1517 AudioTimestamp ts; 1518 static const int64_t kStaleTimestamp100ms = 100000; 1519 1520 status_t res = mTrack->getTimestamp(ts); 1521 if (res == OK) { // case 1: mixing audio tracks and offloaded tracks. 1522 numFramesPlayed = ts.mPosition; 1523 numFramesPlayedAt = ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000; 1524 const int64_t timestampAge = nowUs - numFramesPlayedAt; 1525 if (timestampAge > kStaleTimestamp100ms) { 1526 // This is an audio FIXME. 1527 // getTimestamp returns a timestamp which may come from audio mixing threads. 1528 // After pausing, the MixerThread may go idle, thus the mTime estimate may 1529 // become stale. Assuming that the MixerThread runs 20ms, with FastMixer at 5ms, 1530 // the max latency should be about 25ms with an average around 12ms (to be verified). 1531 // For safety we use 100ms. 1532 ALOGV("getTimestamp: returned stale timestamp nowUs(%lld) numFramesPlayedAt(%lld)", 1533 (long long)nowUs, (long long)numFramesPlayedAt); 1534 numFramesPlayedAt = nowUs - kStaleTimestamp100ms; 1535 } 1536 //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAt); 1537 } else if (res == WOULD_BLOCK) { // case 2: transitory state on start of a new track 1538 numFramesPlayed = 0; 1539 numFramesPlayedAt = nowUs; 1540 //ALOGD("getTimestamp: WOULD_BLOCK %d %lld", 1541 // numFramesPlayed, (long long)numFramesPlayedAt); 1542 } else { // case 3: transitory at new track or audio fast tracks. 1543 res = mTrack->getPosition(&numFramesPlayed); 1544 CHECK_EQ(res, (status_t)OK); 1545 numFramesPlayedAt = nowUs; 1546 numFramesPlayedAt += 1000LL * mTrack->latency() / 2; /* XXX */ 1547 //ALOGD("getPosition: %u %lld", numFramesPlayed, (long long)numFramesPlayedAt); 1548 } 1549 1550 // CHECK_EQ(numFramesPlayed & (1 << 31), 0); // can't be negative until 12.4 hrs, test 1551 // TODO: remove the (int32_t) casting below as it may overflow at 12.4 hours. 1552 int64_t durationUs = (int64_t)((int32_t)numFramesPlayed * 1000000LL / mSampleRateHz) 1553 + nowUs - numFramesPlayedAt; 1554 if (durationUs < 0) { 1555 // Occurs when numFramesPlayed position is very small and the following: 1556 // (1) In case 1, the time nowUs is computed before getTimestamp() is called and 1557 // numFramesPlayedAt is greater than nowUs by time more than numFramesPlayed. 1558 // (2) In case 3, using getPosition and adding mAudioSink->latency() to 1559 // numFramesPlayedAt, by a time amount greater than numFramesPlayed. 1560 // 1561 // Both of these are transitory conditions. 1562 ALOGV("getPlayedOutDurationUs: negative duration %lld set to zero", (long long)durationUs); 1563 durationUs = 0; 1564 } 1565 ALOGV("getPlayedOutDurationUs(%lld) nowUs(%lld) frames(%u) framesAt(%lld)", 1566 (long long)durationUs, (long long)nowUs, numFramesPlayed, (long long)numFramesPlayedAt); 1567 return durationUs; 1568 } 1569 1570 status_t MediaPlayerService::AudioOutput::getFramesWritten(uint32_t *frameswritten) const 1571 { 1572 Mutex::Autolock lock(mLock); 1573 if (mTrack == 0) return NO_INIT; 1574 ExtendedTimestamp ets; 1575 status_t status = mTrack->getTimestamp(&ets); 1576 if (status == OK || status == WOULD_BLOCK) { 1577 *frameswritten = (uint32_t)ets.mPosition[ExtendedTimestamp::LOCATION_CLIENT]; 1578 } 1579 return status; 1580 } 1581 1582 status_t MediaPlayerService::AudioOutput::setParameters(const String8& keyValuePairs) 1583 { 1584 Mutex::Autolock lock(mLock); 1585 if (mTrack == 0) return NO_INIT; 1586 return mTrack->setParameters(keyValuePairs); 1587 } 1588 1589 String8 MediaPlayerService::AudioOutput::getParameters(const String8& keys) 1590 { 1591 Mutex::Autolock lock(mLock); 1592 if (mTrack == 0) return String8::empty(); 1593 return mTrack->getParameters(keys); 1594 } 1595 1596 void MediaPlayerService::AudioOutput::setAudioAttributes(const audio_attributes_t * attributes) { 1597 Mutex::Autolock lock(mLock); 1598 if (attributes == NULL) { 1599 free(mAttributes); 1600 mAttributes = NULL; 1601 } else { 1602 if (mAttributes == NULL) { 1603 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1604 } 1605 memcpy(mAttributes, attributes, sizeof(audio_attributes_t)); 1606 mStreamType = audio_attributes_to_stream_type(attributes); 1607 } 1608 } 1609 1610 void MediaPlayerService::AudioOutput::setAudioStreamType(audio_stream_type_t streamType) 1611 { 1612 Mutex::Autolock lock(mLock); 1613 // do not allow direct stream type modification if attributes have been set 1614 if (mAttributes == NULL) { 1615 mStreamType = streamType; 1616 } 1617 } 1618 1619 void MediaPlayerService::AudioOutput::deleteRecycledTrack_l() 1620 { 1621 ALOGV("deleteRecycledTrack_l"); 1622 if (mRecycledTrack != 0) { 1623 1624 if (mCallbackData != NULL) { 1625 mCallbackData->setOutput(NULL); 1626 mCallbackData->endTrackSwitch(); 1627 } 1628 1629 if ((mRecycledTrack->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) { 1630 int32_t msec = 0; 1631 if (!mRecycledTrack->stopped()) { // check if active 1632 (void)mRecycledTrack->pendingDuration(&msec); 1633 } 1634 mRecycledTrack->stop(); // ensure full data drain 1635 ALOGD("deleting recycled track, waiting for data drain (%d msec)", msec); 1636 if (msec > 0) { 1637 static const int32_t WAIT_LIMIT_MS = 3000; 1638 if (msec > WAIT_LIMIT_MS) { 1639 msec = WAIT_LIMIT_MS; 1640 } 1641 usleep(msec * 1000LL); 1642 } 1643 } 1644 // An offloaded track isn't flushed because the STREAM_END is reported 1645 // slightly prematurely to allow time for the gapless track switch 1646 // but this means that if we decide not to recycle the track there 1647 // could be a small amount of residual data still playing. We leave 1648 // AudioFlinger to drain the track. 1649 1650 mRecycledTrack.clear(); 1651 close_l(); 1652 delete mCallbackData; 1653 mCallbackData = NULL; 1654 } 1655 } 1656 1657 void MediaPlayerService::AudioOutput::close_l() 1658 { 1659 mTrack.clear(); 1660 } 1661 1662 status_t MediaPlayerService::AudioOutput::open( 1663 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 1664 audio_format_t format, int bufferCount, 1665 AudioCallback cb, void *cookie, 1666 audio_output_flags_t flags, 1667 const audio_offload_info_t *offloadInfo, 1668 bool doNotReconnect, 1669 uint32_t suggestedFrameCount) 1670 { 1671 ALOGV("open(%u, %d, 0x%x, 0x%x, %d, %d 0x%x)", sampleRate, channelCount, channelMask, 1672 format, bufferCount, mSessionId, flags); 1673 1674 // offloading is only supported in callback mode for now. 1675 // offloadInfo must be present if offload flag is set 1676 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) && 1677 ((cb == NULL) || (offloadInfo == NULL))) { 1678 return BAD_VALUE; 1679 } 1680 1681 // compute frame count for the AudioTrack internal buffer 1682 size_t frameCount; 1683 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1684 frameCount = 0; // AudioTrack will get frame count from AudioFlinger 1685 } else { 1686 // try to estimate the buffer processing fetch size from AudioFlinger. 1687 // framesPerBuffer is approximate and generally correct, except when it's not :-). 1688 uint32_t afSampleRate; 1689 size_t afFrameCount; 1690 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1691 return NO_INIT; 1692 } 1693 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1694 return NO_INIT; 1695 } 1696 const size_t framesPerBuffer = 1697 (unsigned long long)sampleRate * afFrameCount / afSampleRate; 1698 1699 if (bufferCount == 0) { 1700 // use suggestedFrameCount 1701 bufferCount = (suggestedFrameCount + framesPerBuffer - 1) / framesPerBuffer; 1702 } 1703 // Check argument bufferCount against the mininum buffer count 1704 if (bufferCount != 0 && bufferCount < mMinBufferCount) { 1705 ALOGV("bufferCount (%d) increased to %d", bufferCount, mMinBufferCount); 1706 bufferCount = mMinBufferCount; 1707 } 1708 // if frameCount is 0, then AudioTrack will get frame count from AudioFlinger 1709 // which will be the minimum size permitted. 1710 frameCount = bufferCount * framesPerBuffer; 1711 } 1712 1713 if (channelMask == CHANNEL_MASK_USE_CHANNEL_ORDER) { 1714 channelMask = audio_channel_out_mask_from_count(channelCount); 1715 if (0 == channelMask) { 1716 ALOGE("open() error, can\'t derive mask for %d audio channels", channelCount); 1717 return NO_INIT; 1718 } 1719 } 1720 1721 Mutex::Autolock lock(mLock); 1722 mCallback = cb; 1723 mCallbackCookie = cookie; 1724 1725 // Check whether we can recycle the track 1726 bool reuse = false; 1727 bool bothOffloaded = false; 1728 1729 if (mRecycledTrack != 0) { 1730 // check whether we are switching between two offloaded tracks 1731 bothOffloaded = (flags & mRecycledTrack->getFlags() 1732 & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; 1733 1734 // check if the existing track can be reused as-is, or if a new track needs to be created. 1735 reuse = true; 1736 1737 if ((mCallbackData == NULL && mCallback != NULL) || 1738 (mCallbackData != NULL && mCallback == NULL)) { 1739 // recycled track uses callbacks but the caller wants to use writes, or vice versa 1740 ALOGV("can't chain callback and write"); 1741 reuse = false; 1742 } else if ((mRecycledTrack->getSampleRate() != sampleRate) || 1743 (mRecycledTrack->channelCount() != (uint32_t)channelCount) ) { 1744 ALOGV("samplerate, channelcount differ: %u/%u Hz, %u/%d ch", 1745 mRecycledTrack->getSampleRate(), sampleRate, 1746 mRecycledTrack->channelCount(), channelCount); 1747 reuse = false; 1748 } else if (flags != mFlags) { 1749 ALOGV("output flags differ %08x/%08x", flags, mFlags); 1750 reuse = false; 1751 } else if (mRecycledTrack->format() != format) { 1752 reuse = false; 1753 } 1754 } else { 1755 ALOGV("no track available to recycle"); 1756 } 1757 1758 ALOGV_IF(bothOffloaded, "both tracks offloaded"); 1759 1760 // If we can't recycle and both tracks are offloaded 1761 // we must close the previous output before opening a new one 1762 if (bothOffloaded && !reuse) { 1763 ALOGV("both offloaded and not recycling"); 1764 deleteRecycledTrack_l(); 1765 } 1766 1767 sp<AudioTrack> t; 1768 CallbackData *newcbd = NULL; 1769 1770 // We don't attempt to create a new track if we are recycling an 1771 // offloaded track. But, if we are recycling a non-offloaded or we 1772 // are switching where one is offloaded and one isn't then we create 1773 // the new track in advance so that we can read additional stream info 1774 1775 if (!(reuse && bothOffloaded)) { 1776 ALOGV("creating new AudioTrack"); 1777 1778 if (mCallback != NULL) { 1779 newcbd = new CallbackData(this); 1780 t = new AudioTrack( 1781 mStreamType, 1782 sampleRate, 1783 format, 1784 channelMask, 1785 frameCount, 1786 flags, 1787 CallbackWrapper, 1788 newcbd, 1789 0, // notification frames 1790 mSessionId, 1791 AudioTrack::TRANSFER_CALLBACK, 1792 offloadInfo, 1793 mUid, 1794 mPid, 1795 mAttributes, 1796 doNotReconnect); 1797 } else { 1798 // TODO: Due to buffer memory concerns, we use a max target playback speed 1799 // based on mPlaybackRate at the time of open (instead of kMaxRequiredSpeed), 1800 // also clamping the target speed to 1.0 <= targetSpeed <= kMaxRequiredSpeed. 1801 const float targetSpeed = 1802 std::min(std::max(mPlaybackRate.mSpeed, 1.0f), kMaxRequiredSpeed); 1803 ALOGW_IF(targetSpeed != mPlaybackRate.mSpeed, 1804 "track target speed:%f clamped from playback speed:%f", 1805 targetSpeed, mPlaybackRate.mSpeed); 1806 t = new AudioTrack( 1807 mStreamType, 1808 sampleRate, 1809 format, 1810 channelMask, 1811 frameCount, 1812 flags, 1813 NULL, // callback 1814 NULL, // user data 1815 0, // notification frames 1816 mSessionId, 1817 AudioTrack::TRANSFER_DEFAULT, 1818 NULL, // offload info 1819 mUid, 1820 mPid, 1821 mAttributes, 1822 doNotReconnect, 1823 targetSpeed); 1824 } 1825 1826 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1827 ALOGE("Unable to create audio track"); 1828 delete newcbd; 1829 // t goes out of scope, so reference count drops to zero 1830 return NO_INIT; 1831 } else { 1832 // successful AudioTrack initialization implies a legacy stream type was generated 1833 // from the audio attributes 1834 mStreamType = t->streamType(); 1835 } 1836 } 1837 1838 if (reuse) { 1839 CHECK(mRecycledTrack != NULL); 1840 1841 if (!bothOffloaded) { 1842 if (mRecycledTrack->frameCount() != t->frameCount()) { 1843 ALOGV("framecount differs: %zu/%zu frames", 1844 mRecycledTrack->frameCount(), t->frameCount()); 1845 reuse = false; 1846 } 1847 } 1848 1849 if (reuse) { 1850 ALOGV("chaining to next output and recycling track"); 1851 close_l(); 1852 mTrack = mRecycledTrack; 1853 mRecycledTrack.clear(); 1854 if (mCallbackData != NULL) { 1855 mCallbackData->setOutput(this); 1856 } 1857 delete newcbd; 1858 return updateTrack(); 1859 } 1860 } 1861 1862 // we're not going to reuse the track, unblock and flush it 1863 // this was done earlier if both tracks are offloaded 1864 if (!bothOffloaded) { 1865 deleteRecycledTrack_l(); 1866 } 1867 1868 CHECK((t != NULL) && ((mCallback == NULL) || (newcbd != NULL))); 1869 1870 mCallbackData = newcbd; 1871 ALOGV("setVolume"); 1872 t->setVolume(mLeftVolume, mRightVolume); 1873 1874 mSampleRateHz = sampleRate; 1875 mFlags = flags; 1876 mMsecsPerFrame = 1E3f / (mPlaybackRate.mSpeed * sampleRate); 1877 mFrameSize = t->frameSize(); 1878 mTrack = t; 1879 1880 return updateTrack(); 1881 } 1882 1883 status_t MediaPlayerService::AudioOutput::updateTrack() { 1884 if (mTrack == NULL) { 1885 return NO_ERROR; 1886 } 1887 1888 status_t res = NO_ERROR; 1889 // Note some output devices may give us a direct track even though we don't specify it. 1890 // Example: Line application b/17459982. 1891 if ((mTrack->getFlags() 1892 & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD | AUDIO_OUTPUT_FLAG_DIRECT)) == 0) { 1893 res = mTrack->setPlaybackRate(mPlaybackRate); 1894 if (res == NO_ERROR) { 1895 mTrack->setAuxEffectSendLevel(mSendLevel); 1896 res = mTrack->attachAuxEffect(mAuxEffectId); 1897 } 1898 } 1899 ALOGV("updateTrack() DONE status %d", res); 1900 return res; 1901 } 1902 1903 status_t MediaPlayerService::AudioOutput::start() 1904 { 1905 ALOGV("start"); 1906 Mutex::Autolock lock(mLock); 1907 if (mCallbackData != NULL) { 1908 mCallbackData->endTrackSwitch(); 1909 } 1910 if (mTrack != 0) { 1911 mTrack->setVolume(mLeftVolume, mRightVolume); 1912 mTrack->setAuxEffectSendLevel(mSendLevel); 1913 return mTrack->start(); 1914 } 1915 return NO_INIT; 1916 } 1917 1918 void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) { 1919 Mutex::Autolock lock(mLock); 1920 mNextOutput = nextOutput; 1921 } 1922 1923 void MediaPlayerService::AudioOutput::switchToNextOutput() { 1924 ALOGV("switchToNextOutput"); 1925 1926 // Try to acquire the callback lock before moving track (without incurring deadlock). 1927 const unsigned kMaxSwitchTries = 100; 1928 Mutex::Autolock lock(mLock); 1929 for (unsigned tries = 0;;) { 1930 if (mTrack == 0) { 1931 return; 1932 } 1933 if (mNextOutput != NULL && mNextOutput != this) { 1934 if (mCallbackData != NULL) { 1935 // two alternative approaches 1936 #if 1 1937 CallbackData *callbackData = mCallbackData; 1938 mLock.unlock(); 1939 // proper acquisition sequence 1940 callbackData->lock(); 1941 mLock.lock(); 1942 // Caution: it is unlikely that someone deleted our callback or changed our target 1943 if (callbackData != mCallbackData || mNextOutput == NULL || mNextOutput == this) { 1944 // fatal if we are starved out. 1945 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries, 1946 "switchToNextOutput() cannot obtain correct lock sequence"); 1947 callbackData->unlock(); 1948 continue; 1949 } 1950 callbackData->mSwitching = true; // begin track switch 1951 callbackData->setOutput(NULL); 1952 #else 1953 // tryBeginTrackSwitch() returns false if the callback has the lock. 1954 if (!mCallbackData->tryBeginTrackSwitch()) { 1955 // fatal if we are starved out. 1956 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries, 1957 "switchToNextOutput() cannot obtain callback lock"); 1958 mLock.unlock(); 1959 usleep(5 * 1000 /* usec */); // allow callback to use AudioOutput 1960 mLock.lock(); 1961 continue; 1962 } 1963 #endif 1964 } 1965 1966 Mutex::Autolock nextLock(mNextOutput->mLock); 1967 1968 // If the next output track is not NULL, then it has been 1969 // opened already for playback. 1970 // This is possible even without the next player being started, 1971 // for example, the next player could be prepared and seeked. 1972 // 1973 // Presuming it isn't advisable to force the track over. 1974 if (mNextOutput->mTrack == NULL) { 1975 ALOGD("Recycling track for gapless playback"); 1976 delete mNextOutput->mCallbackData; 1977 mNextOutput->mCallbackData = mCallbackData; 1978 mNextOutput->mRecycledTrack = mTrack; 1979 mNextOutput->mSampleRateHz = mSampleRateHz; 1980 mNextOutput->mMsecsPerFrame = mMsecsPerFrame; 1981 mNextOutput->mFlags = mFlags; 1982 mNextOutput->mFrameSize = mFrameSize; 1983 close_l(); 1984 mCallbackData = NULL; // destruction handled by mNextOutput 1985 } else { 1986 ALOGW("Ignoring gapless playback because next player has already started"); 1987 // remove track in case resource needed for future players. 1988 if (mCallbackData != NULL) { 1989 mCallbackData->endTrackSwitch(); // release lock for callbacks before close. 1990 } 1991 close_l(); 1992 } 1993 } 1994 break; 1995 } 1996 } 1997 1998 ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size, bool blocking) 1999 { 2000 Mutex::Autolock lock(mLock); 2001 LOG_ALWAYS_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 2002 2003 //ALOGV("write(%p, %u)", buffer, size); 2004 if (mTrack != 0) { 2005 return mTrack->write(buffer, size, blocking); 2006 } 2007 return NO_INIT; 2008 } 2009 2010 void MediaPlayerService::AudioOutput::stop() 2011 { 2012 ALOGV("stop"); 2013 Mutex::Autolock lock(mLock); 2014 if (mTrack != 0) mTrack->stop(); 2015 } 2016 2017 void MediaPlayerService::AudioOutput::flush() 2018 { 2019 ALOGV("flush"); 2020 Mutex::Autolock lock(mLock); 2021 if (mTrack != 0) mTrack->flush(); 2022 } 2023 2024 void MediaPlayerService::AudioOutput::pause() 2025 { 2026 ALOGV("pause"); 2027 Mutex::Autolock lock(mLock); 2028 if (mTrack != 0) mTrack->pause(); 2029 } 2030 2031 void MediaPlayerService::AudioOutput::close() 2032 { 2033 ALOGV("close"); 2034 sp<AudioTrack> track; 2035 { 2036 Mutex::Autolock lock(mLock); 2037 track = mTrack; 2038 close_l(); // clears mTrack 2039 } 2040 // destruction of the track occurs outside of mutex. 2041 } 2042 2043 void MediaPlayerService::AudioOutput::setVolume(float left, float right) 2044 { 2045 ALOGV("setVolume(%f, %f)", left, right); 2046 Mutex::Autolock lock(mLock); 2047 mLeftVolume = left; 2048 mRightVolume = right; 2049 if (mTrack != 0) { 2050 mTrack->setVolume(left, right); 2051 } 2052 } 2053 2054 status_t MediaPlayerService::AudioOutput::setPlaybackRate(const AudioPlaybackRate &rate) 2055 { 2056 ALOGV("setPlaybackRate(%f %f %d %d)", 2057 rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode); 2058 Mutex::Autolock lock(mLock); 2059 if (mTrack == 0) { 2060 // remember rate so that we can set it when the track is opened 2061 mPlaybackRate = rate; 2062 return OK; 2063 } 2064 status_t res = mTrack->setPlaybackRate(rate); 2065 if (res != NO_ERROR) { 2066 return res; 2067 } 2068 // rate.mSpeed is always greater than 0 if setPlaybackRate succeeded 2069 CHECK_GT(rate.mSpeed, 0.f); 2070 mPlaybackRate = rate; 2071 if (mSampleRateHz != 0) { 2072 mMsecsPerFrame = 1E3f / (rate.mSpeed * mSampleRateHz); 2073 } 2074 return res; 2075 } 2076 2077 status_t MediaPlayerService::AudioOutput::getPlaybackRate(AudioPlaybackRate *rate) 2078 { 2079 ALOGV("setPlaybackRate"); 2080 Mutex::Autolock lock(mLock); 2081 if (mTrack == 0) { 2082 return NO_INIT; 2083 } 2084 *rate = mTrack->getPlaybackRate(); 2085 return NO_ERROR; 2086 } 2087 2088 status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level) 2089 { 2090 ALOGV("setAuxEffectSendLevel(%f)", level); 2091 Mutex::Autolock lock(mLock); 2092 mSendLevel = level; 2093 if (mTrack != 0) { 2094 return mTrack->setAuxEffectSendLevel(level); 2095 } 2096 return NO_ERROR; 2097 } 2098 2099 status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId) 2100 { 2101 ALOGV("attachAuxEffect(%d)", effectId); 2102 Mutex::Autolock lock(mLock); 2103 mAuxEffectId = effectId; 2104 if (mTrack != 0) { 2105 return mTrack->attachAuxEffect(effectId); 2106 } 2107 return NO_ERROR; 2108 } 2109 2110 // static 2111 void MediaPlayerService::AudioOutput::CallbackWrapper( 2112 int event, void *cookie, void *info) { 2113 //ALOGV("callbackwrapper"); 2114 CallbackData *data = (CallbackData*)cookie; 2115 // lock to ensure we aren't caught in the middle of a track switch. 2116 data->lock(); 2117 AudioOutput *me = data->getOutput(); 2118 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 2119 if (me == NULL) { 2120 // no output set, likely because the track was scheduled to be reused 2121 // by another player, but the format turned out to be incompatible. 2122 data->unlock(); 2123 if (buffer != NULL) { 2124 buffer->size = 0; 2125 } 2126 return; 2127 } 2128 2129 switch(event) { 2130 case AudioTrack::EVENT_MORE_DATA: { 2131 size_t actualSize = (*me->mCallback)( 2132 me, buffer->raw, buffer->size, me->mCallbackCookie, 2133 CB_EVENT_FILL_BUFFER); 2134 2135 // Log when no data is returned from the callback. 2136 // (1) We may have no data (especially with network streaming sources). 2137 // (2) We may have reached the EOS and the audio track is not stopped yet. 2138 // Note that AwesomePlayer/AudioPlayer will only return zero size when it reaches the EOS. 2139 // NuPlayerRenderer will return zero when it doesn't have data (it doesn't block to fill). 2140 // 2141 // This is a benign busy-wait, with the next data request generated 10 ms or more later; 2142 // nevertheless for power reasons, we don't want to see too many of these. 2143 2144 ALOGV_IF(actualSize == 0 && buffer->size > 0, "callbackwrapper: empty buffer returned"); 2145 2146 buffer->size = actualSize; 2147 } break; 2148 2149 case AudioTrack::EVENT_STREAM_END: 2150 // currently only occurs for offloaded callbacks 2151 ALOGV("callbackwrapper: deliver EVENT_STREAM_END"); 2152 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 2153 me->mCallbackCookie, CB_EVENT_STREAM_END); 2154 break; 2155 2156 case AudioTrack::EVENT_NEW_IAUDIOTRACK : 2157 ALOGV("callbackwrapper: deliver EVENT_TEAR_DOWN"); 2158 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 2159 me->mCallbackCookie, CB_EVENT_TEAR_DOWN); 2160 break; 2161 2162 case AudioTrack::EVENT_UNDERRUN: 2163 // This occurs when there is no data available, typically 2164 // when there is a failure to supply data to the AudioTrack. It can also 2165 // occur in non-offloaded mode when the audio device comes out of standby. 2166 // 2167 // If an AudioTrack underruns it outputs silence. Since this happens suddenly 2168 // it may sound like an audible pop or glitch. 2169 // 2170 // The underrun event is sent once per track underrun; the condition is reset 2171 // when more data is sent to the AudioTrack. 2172 ALOGD("callbackwrapper: EVENT_UNDERRUN (discarded)"); 2173 break; 2174 2175 default: 2176 ALOGE("received unknown event type: %d inside CallbackWrapper !", event); 2177 } 2178 2179 data->unlock(); 2180 } 2181 2182 audio_session_t MediaPlayerService::AudioOutput::getSessionId() const 2183 { 2184 Mutex::Autolock lock(mLock); 2185 return mSessionId; 2186 } 2187 2188 uint32_t MediaPlayerService::AudioOutput::getSampleRate() const 2189 { 2190 Mutex::Autolock lock(mLock); 2191 if (mTrack == 0) return 0; 2192 return mTrack->getSampleRate(); 2193 } 2194 2195 int64_t MediaPlayerService::AudioOutput::getBufferDurationInUs() const 2196 { 2197 Mutex::Autolock lock(mLock); 2198 if (mTrack == 0) { 2199 return 0; 2200 } 2201 int64_t duration; 2202 if (mTrack->getBufferDurationInUs(&duration) != OK) { 2203 return 0; 2204 } 2205 return duration; 2206 } 2207 2208 //////////////////////////////////////////////////////////////////////////////// 2209 2210 struct CallbackThread : public Thread { 2211 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 2212 MediaPlayerBase::AudioSink::AudioCallback cb, 2213 void *cookie); 2214 2215 protected: 2216 virtual ~CallbackThread(); 2217 2218 virtual bool threadLoop(); 2219 2220 private: 2221 wp<MediaPlayerBase::AudioSink> mSink; 2222 MediaPlayerBase::AudioSink::AudioCallback mCallback; 2223 void *mCookie; 2224 void *mBuffer; 2225 size_t mBufferSize; 2226 2227 CallbackThread(const CallbackThread &); 2228 CallbackThread &operator=(const CallbackThread &); 2229 }; 2230 2231 CallbackThread::CallbackThread( 2232 const wp<MediaPlayerBase::AudioSink> &sink, 2233 MediaPlayerBase::AudioSink::AudioCallback cb, 2234 void *cookie) 2235 : mSink(sink), 2236 mCallback(cb), 2237 mCookie(cookie), 2238 mBuffer(NULL), 2239 mBufferSize(0) { 2240 } 2241 2242 CallbackThread::~CallbackThread() { 2243 if (mBuffer) { 2244 free(mBuffer); 2245 mBuffer = NULL; 2246 } 2247 } 2248 2249 bool CallbackThread::threadLoop() { 2250 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 2251 if (sink == NULL) { 2252 return false; 2253 } 2254 2255 if (mBuffer == NULL) { 2256 mBufferSize = sink->bufferSize(); 2257 mBuffer = malloc(mBufferSize); 2258 } 2259 2260 size_t actualSize = 2261 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie, 2262 MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER); 2263 2264 if (actualSize > 0) { 2265 sink->write(mBuffer, actualSize); 2266 // Could return false on sink->write() error or short count. 2267 // Not necessarily appropriate but would work for AudioCache behavior. 2268 } 2269 2270 return true; 2271 } 2272 2273 //////////////////////////////////////////////////////////////////////////////// 2274 2275 void MediaPlayerService::addBatteryData(uint32_t params) 2276 { 2277 Mutex::Autolock lock(mLock); 2278 2279 int32_t time = systemTime() / 1000000L; 2280 2281 // change audio output devices. This notification comes from AudioFlinger 2282 if ((params & kBatteryDataSpeakerOn) 2283 || (params & kBatteryDataOtherAudioDeviceOn)) { 2284 2285 int deviceOn[NUM_AUDIO_DEVICES]; 2286 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2287 deviceOn[i] = 0; 2288 } 2289 2290 if ((params & kBatteryDataSpeakerOn) 2291 && (params & kBatteryDataOtherAudioDeviceOn)) { 2292 deviceOn[SPEAKER_AND_OTHER] = 1; 2293 } else if (params & kBatteryDataSpeakerOn) { 2294 deviceOn[SPEAKER] = 1; 2295 } else { 2296 deviceOn[OTHER_AUDIO_DEVICE] = 1; 2297 } 2298 2299 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2300 if (mBatteryAudio.deviceOn[i] != deviceOn[i]){ 2301 2302 if (mBatteryAudio.refCount > 0) { // if playing audio 2303 if (!deviceOn[i]) { 2304 mBatteryAudio.lastTime[i] += time; 2305 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2306 mBatteryAudio.lastTime[i] = 0; 2307 } else { 2308 mBatteryAudio.lastTime[i] = 0 - time; 2309 } 2310 } 2311 2312 mBatteryAudio.deviceOn[i] = deviceOn[i]; 2313 } 2314 } 2315 return; 2316 } 2317 2318 // an audio stream is started 2319 if (params & kBatteryDataAudioFlingerStart) { 2320 // record the start time only if currently no other audio 2321 // is being played 2322 if (mBatteryAudio.refCount == 0) { 2323 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2324 if (mBatteryAudio.deviceOn[i]) { 2325 mBatteryAudio.lastTime[i] -= time; 2326 } 2327 } 2328 } 2329 2330 mBatteryAudio.refCount ++; 2331 return; 2332 2333 } else if (params & kBatteryDataAudioFlingerStop) { 2334 if (mBatteryAudio.refCount <= 0) { 2335 ALOGW("Battery track warning: refCount is <= 0"); 2336 return; 2337 } 2338 2339 // record the stop time only if currently this is the only 2340 // audio being played 2341 if (mBatteryAudio.refCount == 1) { 2342 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2343 if (mBatteryAudio.deviceOn[i]) { 2344 mBatteryAudio.lastTime[i] += time; 2345 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2346 mBatteryAudio.lastTime[i] = 0; 2347 } 2348 } 2349 } 2350 2351 mBatteryAudio.refCount --; 2352 return; 2353 } 2354 2355 int uid = IPCThreadState::self()->getCallingUid(); 2356 if (uid == AID_MEDIA) { 2357 return; 2358 } 2359 int index = mBatteryData.indexOfKey(uid); 2360 2361 if (index < 0) { // create a new entry for this UID 2362 BatteryUsageInfo info; 2363 info.audioTotalTime = 0; 2364 info.videoTotalTime = 0; 2365 info.audioLastTime = 0; 2366 info.videoLastTime = 0; 2367 info.refCount = 0; 2368 2369 if (mBatteryData.add(uid, info) == NO_MEMORY) { 2370 ALOGE("Battery track error: no memory for new app"); 2371 return; 2372 } 2373 } 2374 2375 BatteryUsageInfo &info = mBatteryData.editValueFor(uid); 2376 2377 if (params & kBatteryDataCodecStarted) { 2378 if (params & kBatteryDataTrackAudio) { 2379 info.audioLastTime -= time; 2380 info.refCount ++; 2381 } 2382 if (params & kBatteryDataTrackVideo) { 2383 info.videoLastTime -= time; 2384 info.refCount ++; 2385 } 2386 } else { 2387 if (info.refCount == 0) { 2388 ALOGW("Battery track warning: refCount is already 0"); 2389 return; 2390 } else if (info.refCount < 0) { 2391 ALOGE("Battery track error: refCount < 0"); 2392 mBatteryData.removeItem(uid); 2393 return; 2394 } 2395 2396 if (params & kBatteryDataTrackAudio) { 2397 info.audioLastTime += time; 2398 info.refCount --; 2399 } 2400 if (params & kBatteryDataTrackVideo) { 2401 info.videoLastTime += time; 2402 info.refCount --; 2403 } 2404 2405 // no stream is being played by this UID 2406 if (info.refCount == 0) { 2407 info.audioTotalTime += info.audioLastTime; 2408 info.audioLastTime = 0; 2409 info.videoTotalTime += info.videoLastTime; 2410 info.videoLastTime = 0; 2411 } 2412 } 2413 } 2414 2415 status_t MediaPlayerService::pullBatteryData(Parcel* reply) { 2416 Mutex::Autolock lock(mLock); 2417 2418 // audio output devices usage 2419 int32_t time = systemTime() / 1000000L; //in ms 2420 int32_t totalTime; 2421 2422 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2423 totalTime = mBatteryAudio.totalTime[i]; 2424 2425 if (mBatteryAudio.deviceOn[i] 2426 && (mBatteryAudio.lastTime[i] != 0)) { 2427 int32_t tmpTime = mBatteryAudio.lastTime[i] + time; 2428 totalTime += tmpTime; 2429 } 2430 2431 reply->writeInt32(totalTime); 2432 // reset the total time 2433 mBatteryAudio.totalTime[i] = 0; 2434 } 2435 2436 // codec usage 2437 BatteryUsageInfo info; 2438 int size = mBatteryData.size(); 2439 2440 reply->writeInt32(size); 2441 int i = 0; 2442 2443 while (i < size) { 2444 info = mBatteryData.valueAt(i); 2445 2446 reply->writeInt32(mBatteryData.keyAt(i)); //UID 2447 reply->writeInt32(info.audioTotalTime); 2448 reply->writeInt32(info.videoTotalTime); 2449 2450 info.audioTotalTime = 0; 2451 info.videoTotalTime = 0; 2452 2453 // remove the UID entry where no stream is being played 2454 if (info.refCount <= 0) { 2455 mBatteryData.removeItemsAt(i); 2456 size --; 2457 i --; 2458 } 2459 i++; 2460 } 2461 return NO_ERROR; 2462 } 2463 } // namespace android 2464
