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/AudioPlayer.h> 61 #include <media/stagefright/foundation/ADebug.h> 62 #include <media/stagefright/foundation/ALooperRoster.h> 63 #include <mediautils/BatteryNotifier.h> 64 65 #include <system/audio.h> 66 67 #include <private/android_filesystem_config.h> 68 69 #include "ActivityManager.h" 70 #include "MediaRecorderClient.h" 71 #include "MediaPlayerService.h" 72 #include "MetadataRetrieverClient.h" 73 #include "MediaPlayerFactory.h" 74 75 #include "TestPlayerStub.h" 76 #include "StagefrightPlayer.h" 77 #include "nuplayer/NuPlayerDriver.h" 78 79 #include <OMX.h> 80 81 #include "Crypto.h" 82 #include "Drm.h" 83 #include "HDCP.h" 84 #include "HTTPBase.h" 85 #include "RemoteDisplay.h" 86 87 namespace { 88 using android::media::Metadata; 89 using android::status_t; 90 using android::OK; 91 using android::BAD_VALUE; 92 using android::NOT_ENOUGH_DATA; 93 using android::Parcel; 94 95 // Max number of entries in the filter. 96 const int kMaxFilterSize = 64; // I pulled that out of thin air. 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 %d but got %d", 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 } 242 } else { 243 ALOGE("unmarshallAudioAttributes() received unflattened tags, ignoring tag values"); 244 strcpy(attributes->tags, ""); 245 } 246 } 247 } // anonymous namespace 248 249 250 namespace android { 251 252 extern ALooperRoster gLooperRoster; 253 254 255 static bool checkPermission(const char* permissionString) { 256 #ifndef HAVE_ANDROID_OS 257 return true; 258 #endif 259 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 260 bool ok = checkCallingPermission(String16(permissionString)); 261 if (!ok) ALOGE("Request requires %s", permissionString); 262 return ok; 263 } 264 265 // TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround 266 /* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4; 267 /* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false; 268 269 void MediaPlayerService::instantiate() { 270 defaultServiceManager()->addService( 271 String16("media.player"), new MediaPlayerService()); 272 } 273 274 MediaPlayerService::MediaPlayerService() 275 { 276 ALOGV("MediaPlayerService created"); 277 mNextConnId = 1; 278 279 mBatteryAudio.refCount = 0; 280 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 281 mBatteryAudio.deviceOn[i] = 0; 282 mBatteryAudio.lastTime[i] = 0; 283 mBatteryAudio.totalTime[i] = 0; 284 } 285 // speaker is on by default 286 mBatteryAudio.deviceOn[SPEAKER] = 1; 287 288 // reset battery stats 289 // if the mediaserver has crashed, battery stats could be left 290 // in bad state, reset the state upon service start. 291 BatteryNotifier& notifier(BatteryNotifier::getInstance()); 292 notifier.noteResetVideo(); 293 notifier.noteResetAudio(); 294 295 MediaPlayerFactory::registerBuiltinFactories(); 296 } 297 298 MediaPlayerService::~MediaPlayerService() 299 { 300 ALOGV("MediaPlayerService destroyed"); 301 } 302 303 sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(const String16 &opPackageName) 304 { 305 pid_t pid = IPCThreadState::self()->getCallingPid(); 306 sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid, opPackageName); 307 wp<MediaRecorderClient> w = recorder; 308 Mutex::Autolock lock(mLock); 309 mMediaRecorderClients.add(w); 310 ALOGV("Create new media recorder client from pid %d", pid); 311 return recorder; 312 } 313 314 void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client) 315 { 316 Mutex::Autolock lock(mLock); 317 mMediaRecorderClients.remove(client); 318 ALOGV("Delete media recorder client"); 319 } 320 321 sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever() 322 { 323 pid_t pid = IPCThreadState::self()->getCallingPid(); 324 sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid); 325 ALOGV("Create new media retriever from pid %d", pid); 326 return retriever; 327 } 328 329 sp<IMediaPlayer> MediaPlayerService::create(const sp<IMediaPlayerClient>& client, 330 int audioSessionId) 331 { 332 pid_t pid = IPCThreadState::self()->getCallingPid(); 333 int32_t connId = android_atomic_inc(&mNextConnId); 334 335 sp<Client> c = new Client( 336 this, pid, connId, client, audioSessionId, 337 IPCThreadState::self()->getCallingUid()); 338 339 ALOGV("Create new client(%d) from pid %d, uid %d, ", connId, pid, 340 IPCThreadState::self()->getCallingUid()); 341 342 wp<Client> w = c; 343 { 344 Mutex::Autolock lock(mLock); 345 mClients.add(w); 346 } 347 return c; 348 } 349 350 sp<IMediaCodecList> MediaPlayerService::getCodecList() const { 351 return MediaCodecList::getLocalInstance(); 352 } 353 354 sp<IOMX> MediaPlayerService::getOMX() { 355 Mutex::Autolock autoLock(mLock); 356 357 if (mOMX.get() == NULL) { 358 mOMX = new OMX; 359 } 360 361 return mOMX; 362 } 363 364 sp<ICrypto> MediaPlayerService::makeCrypto() { 365 return new Crypto; 366 } 367 368 sp<IDrm> MediaPlayerService::makeDrm() { 369 return new Drm; 370 } 371 372 sp<IHDCP> MediaPlayerService::makeHDCP(bool createEncryptionModule) { 373 return new HDCP(createEncryptionModule); 374 } 375 376 sp<IRemoteDisplay> MediaPlayerService::listenForRemoteDisplay( 377 const String16 &opPackageName, 378 const sp<IRemoteDisplayClient>& client, const String8& iface) { 379 if (!checkPermission("android.permission.CONTROL_WIFI_DISPLAY")) { 380 return NULL; 381 } 382 383 return new RemoteDisplay(opPackageName, client, iface.string()); 384 } 385 386 status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const 387 { 388 const size_t SIZE = 256; 389 char buffer[SIZE]; 390 String8 result; 391 392 result.append(" AudioOutput\n"); 393 snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", 394 mStreamType, mLeftVolume, mRightVolume); 395 result.append(buffer); 396 snprintf(buffer, 255, " msec per frame(%f), latency (%d)\n", 397 mMsecsPerFrame, (mTrack != 0) ? mTrack->latency() : -1); 398 result.append(buffer); 399 snprintf(buffer, 255, " aux effect id(%d), send level (%f)\n", 400 mAuxEffectId, mSendLevel); 401 result.append(buffer); 402 403 ::write(fd, result.string(), result.size()); 404 if (mTrack != 0) { 405 mTrack->dump(fd, args); 406 } 407 return NO_ERROR; 408 } 409 410 status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) 411 { 412 const size_t SIZE = 256; 413 char buffer[SIZE]; 414 String8 result; 415 result.append(" Client\n"); 416 snprintf(buffer, 255, " pid(%d), connId(%d), status(%d), looping(%s)\n", 417 mPid, mConnId, mStatus, mLoop?"true": "false"); 418 result.append(buffer); 419 write(fd, result.string(), result.size()); 420 if (mPlayer != NULL) { 421 mPlayer->dump(fd, args); 422 } 423 if (mAudioOutput != 0) { 424 mAudioOutput->dump(fd, args); 425 } 426 write(fd, "\n", 1); 427 return NO_ERROR; 428 } 429 430 /** 431 * The only arguments this understands right now are -c, -von and -voff, 432 * which are parsed by ALooperRoster::dump() 433 */ 434 status_t MediaPlayerService::dump(int fd, const Vector<String16>& args) 435 { 436 const size_t SIZE = 256; 437 char buffer[SIZE]; 438 String8 result; 439 SortedVector< sp<Client> > clients; //to serialise the mutex unlock & client destruction. 440 SortedVector< sp<MediaRecorderClient> > mediaRecorderClients; 441 442 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 443 snprintf(buffer, SIZE, "Permission Denial: " 444 "can't dump MediaPlayerService from pid=%d, uid=%d\n", 445 IPCThreadState::self()->getCallingPid(), 446 IPCThreadState::self()->getCallingUid()); 447 result.append(buffer); 448 } else { 449 Mutex::Autolock lock(mLock); 450 for (int i = 0, n = mClients.size(); i < n; ++i) { 451 sp<Client> c = mClients[i].promote(); 452 if (c != 0) c->dump(fd, args); 453 clients.add(c); 454 } 455 if (mMediaRecorderClients.size() == 0) { 456 result.append(" No media recorder client\n\n"); 457 } else { 458 for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) { 459 sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote(); 460 if (c != 0) { 461 snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n", c->mPid); 462 result.append(buffer); 463 write(fd, result.string(), result.size()); 464 result = "\n"; 465 c->dump(fd, args); 466 mediaRecorderClients.add(c); 467 } 468 } 469 } 470 471 result.append(" Files opened and/or mapped:\n"); 472 snprintf(buffer, SIZE, "/proc/%d/maps", getpid()); 473 FILE *f = fopen(buffer, "r"); 474 if (f) { 475 while (!feof(f)) { 476 fgets(buffer, SIZE, f); 477 if (strstr(buffer, " /storage/") || 478 strstr(buffer, " /system/sounds/") || 479 strstr(buffer, " /data/") || 480 strstr(buffer, " /system/media/")) { 481 result.append(" "); 482 result.append(buffer); 483 } 484 } 485 fclose(f); 486 } else { 487 result.append("couldn't open "); 488 result.append(buffer); 489 result.append("\n"); 490 } 491 492 snprintf(buffer, SIZE, "/proc/%d/fd", getpid()); 493 DIR *d = opendir(buffer); 494 if (d) { 495 struct dirent *ent; 496 while((ent = readdir(d)) != NULL) { 497 if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) { 498 snprintf(buffer, SIZE, "/proc/%d/fd/%s", getpid(), ent->d_name); 499 struct stat s; 500 if (lstat(buffer, &s) == 0) { 501 if ((s.st_mode & S_IFMT) == S_IFLNK) { 502 char linkto[256]; 503 int len = readlink(buffer, linkto, sizeof(linkto)); 504 if(len > 0) { 505 if(len > 255) { 506 linkto[252] = '.'; 507 linkto[253] = '.'; 508 linkto[254] = '.'; 509 linkto[255] = 0; 510 } else { 511 linkto[len] = 0; 512 } 513 if (strstr(linkto, "/storage/") == linkto || 514 strstr(linkto, "/system/sounds/") == linkto || 515 strstr(linkto, "/data/") == linkto || 516 strstr(linkto, "/system/media/") == linkto) { 517 result.append(" "); 518 result.append(buffer); 519 result.append(" -> "); 520 result.append(linkto); 521 result.append("\n"); 522 } 523 } 524 } else { 525 result.append(" unexpected type for "); 526 result.append(buffer); 527 result.append("\n"); 528 } 529 } 530 } 531 } 532 closedir(d); 533 } else { 534 result.append("couldn't open "); 535 result.append(buffer); 536 result.append("\n"); 537 } 538 539 gLooperRoster.dump(fd, args); 540 541 bool dumpMem = false; 542 for (size_t i = 0; i < args.size(); i++) { 543 if (args[i] == String16("-m")) { 544 dumpMem = true; 545 } 546 } 547 if (dumpMem) { 548 dumpMemoryAddresses(fd); 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 MediaPlayerService::Client::Client( 562 const sp<MediaPlayerService>& service, pid_t pid, 563 int32_t connId, const sp<IMediaPlayerClient>& client, 564 int audioSessionId, uid_t uid) 565 { 566 ALOGV("Client(%d) constructor", connId); 567 mPid = pid; 568 mConnId = connId; 569 mService = service; 570 mClient = client; 571 mLoop = false; 572 mStatus = NO_INIT; 573 mAudioSessionId = audioSessionId; 574 mUID = uid; 575 mRetransmitEndpointValid = false; 576 mAudioAttributes = NULL; 577 578 #if CALLBACK_ANTAGONIZER 579 ALOGD("create Antagonizer"); 580 mAntagonizer = new Antagonizer(notify, this); 581 #endif 582 } 583 584 MediaPlayerService::Client::~Client() 585 { 586 ALOGV("Client(%d) destructor pid = %d", mConnId, mPid); 587 mAudioOutput.clear(); 588 wp<Client> client(this); 589 disconnect(); 590 mService->removeClient(client); 591 if (mAudioAttributes != NULL) { 592 free(mAudioAttributes); 593 } 594 } 595 596 void MediaPlayerService::Client::disconnect() 597 { 598 ALOGV("disconnect(%d) from pid %d", mConnId, mPid); 599 // grab local reference and clear main reference to prevent future 600 // access to object 601 sp<MediaPlayerBase> p; 602 { 603 Mutex::Autolock l(mLock); 604 p = mPlayer; 605 mClient.clear(); 606 } 607 608 mPlayer.clear(); 609 610 // clear the notification to prevent callbacks to dead client 611 // and reset the player. We assume the player will serialize 612 // access to itself if necessary. 613 if (p != 0) { 614 p->setNotifyCallback(0, 0); 615 #if CALLBACK_ANTAGONIZER 616 ALOGD("kill Antagonizer"); 617 mAntagonizer->kill(); 618 #endif 619 p->reset(); 620 } 621 622 disconnectNativeWindow(); 623 624 IPCThreadState::self()->flushCommands(); 625 } 626 627 sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) 628 { 629 // determine if we have the right player type 630 sp<MediaPlayerBase> p = mPlayer; 631 if ((p != NULL) && (p->playerType() != playerType)) { 632 ALOGV("delete player"); 633 p.clear(); 634 } 635 if (p == NULL) { 636 p = MediaPlayerFactory::createPlayer(playerType, this, notify, mPid); 637 } 638 639 if (p != NULL) { 640 p->setUID(mUID); 641 } 642 643 return p; 644 } 645 646 sp<MediaPlayerBase> MediaPlayerService::Client::setDataSource_pre( 647 player_type playerType) 648 { 649 ALOGV("player type = %d", playerType); 650 651 // create the right type of player 652 sp<MediaPlayerBase> p = createPlayer(playerType); 653 if (p == NULL) { 654 return p; 655 } 656 657 if (!p->hardwareOutput()) { 658 Mutex::Autolock l(mLock); 659 mAudioOutput = new AudioOutput(mAudioSessionId, IPCThreadState::self()->getCallingUid(), 660 mPid, mAudioAttributes); 661 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 662 } 663 664 return p; 665 } 666 667 void MediaPlayerService::Client::setDataSource_post( 668 const sp<MediaPlayerBase>& p, 669 status_t status) 670 { 671 ALOGV(" setDataSource"); 672 mStatus = status; 673 if (mStatus != OK) { 674 ALOGE(" error: %d", mStatus); 675 return; 676 } 677 678 // Set the re-transmission endpoint if one was chosen. 679 if (mRetransmitEndpointValid) { 680 mStatus = p->setRetransmitEndpoint(&mRetransmitEndpoint); 681 if (mStatus != NO_ERROR) { 682 ALOGE("setRetransmitEndpoint error: %d", mStatus); 683 } 684 } 685 686 if (mStatus == OK) { 687 mPlayer = p; 688 } 689 } 690 691 status_t MediaPlayerService::Client::setDataSource( 692 const sp<IMediaHTTPService> &httpService, 693 const char *url, 694 const KeyedVector<String8, String8> *headers) 695 { 696 ALOGV("setDataSource(%s)", url); 697 if (url == NULL) 698 return UNKNOWN_ERROR; 699 700 if ((strncmp(url, "http://", 7) == 0) || 701 (strncmp(url, "https://", 8) == 0) || 702 (strncmp(url, "rtsp://", 7) == 0)) { 703 if (!checkPermission("android.permission.INTERNET")) { 704 return PERMISSION_DENIED; 705 } 706 } 707 708 if (strncmp(url, "content://", 10) == 0) { 709 // get a filedescriptor for the content Uri and 710 // pass it to the setDataSource(fd) method 711 712 String16 url16(url); 713 int fd = android::openContentProviderFile(url16); 714 if (fd < 0) 715 { 716 ALOGE("Couldn't open fd for %s", url); 717 return UNKNOWN_ERROR; 718 } 719 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 720 close(fd); 721 return mStatus; 722 } else { 723 player_type playerType = MediaPlayerFactory::getPlayerType(this, url); 724 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 725 if (p == NULL) { 726 return NO_INIT; 727 } 728 729 setDataSource_post(p, p->setDataSource(httpService, url, headers)); 730 return mStatus; 731 } 732 } 733 734 status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 735 { 736 ALOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length); 737 struct stat sb; 738 int ret = fstat(fd, &sb); 739 if (ret != 0) { 740 ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 741 return UNKNOWN_ERROR; 742 } 743 744 ALOGV("st_dev = %llu", static_cast<uint64_t>(sb.st_dev)); 745 ALOGV("st_mode = %u", sb.st_mode); 746 ALOGV("st_uid = %lu", static_cast<unsigned long>(sb.st_uid)); 747 ALOGV("st_gid = %lu", static_cast<unsigned long>(sb.st_gid)); 748 ALOGV("st_size = %llu", sb.st_size); 749 750 if (offset >= sb.st_size) { 751 ALOGE("offset error"); 752 ::close(fd); 753 return UNKNOWN_ERROR; 754 } 755 if (offset + length > sb.st_size) { 756 length = sb.st_size - offset; 757 ALOGV("calculated length = %lld", length); 758 } 759 760 player_type playerType = MediaPlayerFactory::getPlayerType(this, 761 fd, 762 offset, 763 length); 764 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 765 if (p == NULL) { 766 return NO_INIT; 767 } 768 769 // now set data source 770 setDataSource_post(p, p->setDataSource(fd, offset, length)); 771 return mStatus; 772 } 773 774 status_t MediaPlayerService::Client::setDataSource( 775 const sp<IStreamSource> &source) { 776 // create the right type of player 777 player_type playerType = MediaPlayerFactory::getPlayerType(this, source); 778 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 779 if (p == NULL) { 780 return NO_INIT; 781 } 782 783 // now set data source 784 setDataSource_post(p, p->setDataSource(source)); 785 return mStatus; 786 } 787 788 status_t MediaPlayerService::Client::setDataSource( 789 const sp<IDataSource> &source) { 790 sp<DataSource> dataSource = DataSource::CreateFromIDataSource(source); 791 player_type playerType = MediaPlayerFactory::getPlayerType(this, dataSource); 792 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 793 if (p == NULL) { 794 return NO_INIT; 795 } 796 // now set data source 797 setDataSource_post(p, p->setDataSource(dataSource)); 798 return mStatus; 799 } 800 801 void MediaPlayerService::Client::disconnectNativeWindow() { 802 if (mConnectedWindow != NULL) { 803 status_t err = native_window_api_disconnect(mConnectedWindow.get(), 804 NATIVE_WINDOW_API_MEDIA); 805 806 if (err != OK) { 807 ALOGW("native_window_api_disconnect returned an error: %s (%d)", 808 strerror(-err), err); 809 } 810 } 811 mConnectedWindow.clear(); 812 } 813 814 status_t MediaPlayerService::Client::setVideoSurfaceTexture( 815 const sp<IGraphicBufferProducer>& bufferProducer) 816 { 817 ALOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, bufferProducer.get()); 818 sp<MediaPlayerBase> p = getPlayer(); 819 if (p == 0) return UNKNOWN_ERROR; 820 821 sp<IBinder> binder(IInterface::asBinder(bufferProducer)); 822 if (mConnectedWindowBinder == binder) { 823 return OK; 824 } 825 826 sp<ANativeWindow> anw; 827 if (bufferProducer != NULL) { 828 anw = new Surface(bufferProducer, true /* controlledByApp */); 829 status_t err = native_window_api_connect(anw.get(), 830 NATIVE_WINDOW_API_MEDIA); 831 832 if (err != OK) { 833 ALOGE("setVideoSurfaceTexture failed: %d", err); 834 // Note that we must do the reset before disconnecting from the ANW. 835 // Otherwise queue/dequeue calls could be made on the disconnected 836 // ANW, which may result in errors. 837 reset(); 838 839 disconnectNativeWindow(); 840 841 return err; 842 } 843 } 844 845 // Note that we must set the player's new GraphicBufferProducer before 846 // disconnecting the old one. Otherwise queue/dequeue calls could be made 847 // on the disconnected ANW, which may result in errors. 848 status_t err = p->setVideoSurfaceTexture(bufferProducer); 849 850 disconnectNativeWindow(); 851 852 mConnectedWindow = anw; 853 854 if (err == OK) { 855 mConnectedWindowBinder = binder; 856 } else { 857 disconnectNativeWindow(); 858 } 859 860 return err; 861 } 862 863 status_t MediaPlayerService::Client::invoke(const Parcel& request, 864 Parcel *reply) 865 { 866 sp<MediaPlayerBase> p = getPlayer(); 867 if (p == NULL) return UNKNOWN_ERROR; 868 return p->invoke(request, reply); 869 } 870 871 // This call doesn't need to access the native player. 872 status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 873 { 874 status_t status; 875 media::Metadata::Filter allow, drop; 876 877 if (unmarshallFilter(filter, &allow, &status) && 878 unmarshallFilter(filter, &drop, &status)) { 879 Mutex::Autolock lock(mLock); 880 881 mMetadataAllow = allow; 882 mMetadataDrop = drop; 883 } 884 return status; 885 } 886 887 status_t MediaPlayerService::Client::getMetadata( 888 bool update_only, bool /*apply_filter*/, Parcel *reply) 889 { 890 sp<MediaPlayerBase> player = getPlayer(); 891 if (player == 0) return UNKNOWN_ERROR; 892 893 status_t status; 894 // Placeholder for the return code, updated by the caller. 895 reply->writeInt32(-1); 896 897 media::Metadata::Filter ids; 898 899 // We don't block notifications while we fetch the data. We clear 900 // mMetadataUpdated first so we don't lose notifications happening 901 // during the rest of this call. 902 { 903 Mutex::Autolock lock(mLock); 904 if (update_only) { 905 ids = mMetadataUpdated; 906 } 907 mMetadataUpdated.clear(); 908 } 909 910 media::Metadata metadata(reply); 911 912 metadata.appendHeader(); 913 status = player->getMetadata(ids, reply); 914 915 if (status != OK) { 916 metadata.resetParcel(); 917 ALOGE("getMetadata failed %d", status); 918 return status; 919 } 920 921 // FIXME: Implement filtering on the result. Not critical since 922 // filtering takes place on the update notifications already. This 923 // would be when all the metadata are fetch and a filter is set. 924 925 // Everything is fine, update the metadata length. 926 metadata.updateLength(); 927 return OK; 928 } 929 930 status_t MediaPlayerService::Client::prepareAsync() 931 { 932 ALOGV("[%d] prepareAsync", mConnId); 933 sp<MediaPlayerBase> p = getPlayer(); 934 if (p == 0) return UNKNOWN_ERROR; 935 status_t ret = p->prepareAsync(); 936 #if CALLBACK_ANTAGONIZER 937 ALOGD("start Antagonizer"); 938 if (ret == NO_ERROR) mAntagonizer->start(); 939 #endif 940 return ret; 941 } 942 943 status_t MediaPlayerService::Client::start() 944 { 945 ALOGV("[%d] start", mConnId); 946 sp<MediaPlayerBase> p = getPlayer(); 947 if (p == 0) return UNKNOWN_ERROR; 948 p->setLooping(mLoop); 949 return p->start(); 950 } 951 952 status_t MediaPlayerService::Client::stop() 953 { 954 ALOGV("[%d] stop", mConnId); 955 sp<MediaPlayerBase> p = getPlayer(); 956 if (p == 0) return UNKNOWN_ERROR; 957 return p->stop(); 958 } 959 960 status_t MediaPlayerService::Client::pause() 961 { 962 ALOGV("[%d] pause", mConnId); 963 sp<MediaPlayerBase> p = getPlayer(); 964 if (p == 0) return UNKNOWN_ERROR; 965 return p->pause(); 966 } 967 968 status_t MediaPlayerService::Client::isPlaying(bool* state) 969 { 970 *state = false; 971 sp<MediaPlayerBase> p = getPlayer(); 972 if (p == 0) return UNKNOWN_ERROR; 973 *state = p->isPlaying(); 974 ALOGV("[%d] isPlaying: %d", mConnId, *state); 975 return NO_ERROR; 976 } 977 978 status_t MediaPlayerService::Client::setPlaybackSettings(const AudioPlaybackRate& rate) 979 { 980 ALOGV("[%d] setPlaybackSettings(%f, %f, %d, %d)", 981 mConnId, rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode); 982 sp<MediaPlayerBase> p = getPlayer(); 983 if (p == 0) return UNKNOWN_ERROR; 984 return p->setPlaybackSettings(rate); 985 } 986 987 status_t MediaPlayerService::Client::getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */) 988 { 989 sp<MediaPlayerBase> p = getPlayer(); 990 if (p == 0) return UNKNOWN_ERROR; 991 status_t ret = p->getPlaybackSettings(rate); 992 if (ret == NO_ERROR) { 993 ALOGV("[%d] getPlaybackSettings(%f, %f, %d, %d)", 994 mConnId, rate->mSpeed, rate->mPitch, rate->mFallbackMode, rate->mStretchMode); 995 } else { 996 ALOGV("[%d] getPlaybackSettings returned %d", mConnId, ret); 997 } 998 return ret; 999 } 1000 1001 status_t MediaPlayerService::Client::setSyncSettings( 1002 const AVSyncSettings& sync, float videoFpsHint) 1003 { 1004 ALOGV("[%d] setSyncSettings(%u, %u, %f, %f)", 1005 mConnId, sync.mSource, sync.mAudioAdjustMode, sync.mTolerance, videoFpsHint); 1006 sp<MediaPlayerBase> p = getPlayer(); 1007 if (p == 0) return UNKNOWN_ERROR; 1008 return p->setSyncSettings(sync, videoFpsHint); 1009 } 1010 1011 status_t MediaPlayerService::Client::getSyncSettings( 1012 AVSyncSettings* sync /* nonnull */, float* videoFps /* nonnull */) 1013 { 1014 sp<MediaPlayerBase> p = getPlayer(); 1015 if (p == 0) return UNKNOWN_ERROR; 1016 status_t ret = p->getSyncSettings(sync, videoFps); 1017 if (ret == NO_ERROR) { 1018 ALOGV("[%d] getSyncSettings(%u, %u, %f, %f)", 1019 mConnId, sync->mSource, sync->mAudioAdjustMode, sync->mTolerance, *videoFps); 1020 } else { 1021 ALOGV("[%d] getSyncSettings returned %d", mConnId, ret); 1022 } 1023 return ret; 1024 } 1025 1026 status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 1027 { 1028 ALOGV("getCurrentPosition"); 1029 sp<MediaPlayerBase> p = getPlayer(); 1030 if (p == 0) return UNKNOWN_ERROR; 1031 status_t ret = p->getCurrentPosition(msec); 1032 if (ret == NO_ERROR) { 1033 ALOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 1034 } else { 1035 ALOGE("getCurrentPosition returned %d", ret); 1036 } 1037 return ret; 1038 } 1039 1040 status_t MediaPlayerService::Client::getDuration(int *msec) 1041 { 1042 ALOGV("getDuration"); 1043 sp<MediaPlayerBase> p = getPlayer(); 1044 if (p == 0) return UNKNOWN_ERROR; 1045 status_t ret = p->getDuration(msec); 1046 if (ret == NO_ERROR) { 1047 ALOGV("[%d] getDuration = %d", mConnId, *msec); 1048 } else { 1049 ALOGE("getDuration returned %d", ret); 1050 } 1051 return ret; 1052 } 1053 1054 status_t MediaPlayerService::Client::setNextPlayer(const sp<IMediaPlayer>& player) { 1055 ALOGV("setNextPlayer"); 1056 Mutex::Autolock l(mLock); 1057 sp<Client> c = static_cast<Client*>(player.get()); 1058 mNextClient = c; 1059 1060 if (c != NULL) { 1061 if (mAudioOutput != NULL) { 1062 mAudioOutput->setNextOutput(c->mAudioOutput); 1063 } else if ((mPlayer != NULL) && !mPlayer->hardwareOutput()) { 1064 ALOGE("no current audio output"); 1065 } 1066 1067 if ((mPlayer != NULL) && (mNextClient->getPlayer() != NULL)) { 1068 mPlayer->setNextPlayer(mNextClient->getPlayer()); 1069 } 1070 } 1071 1072 return OK; 1073 } 1074 1075 status_t MediaPlayerService::Client::seekTo(int msec) 1076 { 1077 ALOGV("[%d] seekTo(%d)", mConnId, msec); 1078 sp<MediaPlayerBase> p = getPlayer(); 1079 if (p == 0) return UNKNOWN_ERROR; 1080 return p->seekTo(msec); 1081 } 1082 1083 status_t MediaPlayerService::Client::reset() 1084 { 1085 ALOGV("[%d] reset", mConnId); 1086 mRetransmitEndpointValid = false; 1087 sp<MediaPlayerBase> p = getPlayer(); 1088 if (p == 0) return UNKNOWN_ERROR; 1089 return p->reset(); 1090 } 1091 1092 status_t MediaPlayerService::Client::setAudioStreamType(audio_stream_type_t type) 1093 { 1094 ALOGV("[%d] setAudioStreamType(%d)", mConnId, type); 1095 // TODO: for hardware output, call player instead 1096 Mutex::Autolock l(mLock); 1097 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 1098 return NO_ERROR; 1099 } 1100 1101 status_t MediaPlayerService::Client::setAudioAttributes_l(const Parcel &parcel) 1102 { 1103 if (mAudioAttributes != NULL) { free(mAudioAttributes); } 1104 mAudioAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1105 if (mAudioAttributes == NULL) { 1106 return NO_MEMORY; 1107 } 1108 unmarshallAudioAttributes(parcel, mAudioAttributes); 1109 1110 ALOGV("setAudioAttributes_l() usage=%d content=%d flags=0x%x tags=%s", 1111 mAudioAttributes->usage, mAudioAttributes->content_type, mAudioAttributes->flags, 1112 mAudioAttributes->tags); 1113 1114 if (mAudioOutput != 0) { 1115 mAudioOutput->setAudioAttributes(mAudioAttributes); 1116 } 1117 return NO_ERROR; 1118 } 1119 1120 status_t MediaPlayerService::Client::setLooping(int loop) 1121 { 1122 ALOGV("[%d] setLooping(%d)", mConnId, loop); 1123 mLoop = loop; 1124 sp<MediaPlayerBase> p = getPlayer(); 1125 if (p != 0) return p->setLooping(loop); 1126 return NO_ERROR; 1127 } 1128 1129 status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1130 { 1131 ALOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1132 1133 // for hardware output, call player instead 1134 sp<MediaPlayerBase> p = getPlayer(); 1135 { 1136 Mutex::Autolock l(mLock); 1137 if (p != 0 && p->hardwareOutput()) { 1138 MediaPlayerHWInterface* hwp = 1139 reinterpret_cast<MediaPlayerHWInterface*>(p.get()); 1140 return hwp->setVolume(leftVolume, rightVolume); 1141 } else { 1142 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1143 return NO_ERROR; 1144 } 1145 } 1146 1147 return NO_ERROR; 1148 } 1149 1150 status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level) 1151 { 1152 ALOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level); 1153 Mutex::Autolock l(mLock); 1154 if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level); 1155 return NO_ERROR; 1156 } 1157 1158 status_t MediaPlayerService::Client::attachAuxEffect(int effectId) 1159 { 1160 ALOGV("[%d] attachAuxEffect(%d)", mConnId, effectId); 1161 Mutex::Autolock l(mLock); 1162 if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId); 1163 return NO_ERROR; 1164 } 1165 1166 status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) { 1167 ALOGV("[%d] setParameter(%d)", mConnId, key); 1168 switch (key) { 1169 case KEY_PARAMETER_AUDIO_ATTRIBUTES: 1170 { 1171 Mutex::Autolock l(mLock); 1172 return setAudioAttributes_l(request); 1173 } 1174 default: 1175 sp<MediaPlayerBase> p = getPlayer(); 1176 if (p == 0) { return UNKNOWN_ERROR; } 1177 return p->setParameter(key, request); 1178 } 1179 } 1180 1181 status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) { 1182 ALOGV("[%d] getParameter(%d)", mConnId, key); 1183 sp<MediaPlayerBase> p = getPlayer(); 1184 if (p == 0) return UNKNOWN_ERROR; 1185 return p->getParameter(key, reply); 1186 } 1187 1188 status_t MediaPlayerService::Client::setRetransmitEndpoint( 1189 const struct sockaddr_in* endpoint) { 1190 1191 if (NULL != endpoint) { 1192 uint32_t a = ntohl(endpoint->sin_addr.s_addr); 1193 uint16_t p = ntohs(endpoint->sin_port); 1194 ALOGV("[%d] setRetransmitEndpoint(%u.%u.%u.%u:%hu)", mConnId, 1195 (a >> 24), (a >> 16) & 0xFF, (a >> 8) & 0xFF, (a & 0xFF), p); 1196 } else { 1197 ALOGV("[%d] setRetransmitEndpoint = <none>", mConnId); 1198 } 1199 1200 sp<MediaPlayerBase> p = getPlayer(); 1201 1202 // Right now, the only valid time to set a retransmit endpoint is before 1203 // player selection has been made (since the presence or absence of a 1204 // retransmit endpoint is going to determine which player is selected during 1205 // setDataSource). 1206 if (p != 0) return INVALID_OPERATION; 1207 1208 if (NULL != endpoint) { 1209 mRetransmitEndpoint = *endpoint; 1210 mRetransmitEndpointValid = true; 1211 } else { 1212 mRetransmitEndpointValid = false; 1213 } 1214 1215 return NO_ERROR; 1216 } 1217 1218 status_t MediaPlayerService::Client::getRetransmitEndpoint( 1219 struct sockaddr_in* endpoint) 1220 { 1221 if (NULL == endpoint) 1222 return BAD_VALUE; 1223 1224 sp<MediaPlayerBase> p = getPlayer(); 1225 1226 if (p != NULL) 1227 return p->getRetransmitEndpoint(endpoint); 1228 1229 if (!mRetransmitEndpointValid) 1230 return NO_INIT; 1231 1232 *endpoint = mRetransmitEndpoint; 1233 1234 return NO_ERROR; 1235 } 1236 1237 void MediaPlayerService::Client::notify( 1238 void* cookie, int msg, int ext1, int ext2, const Parcel *obj) 1239 { 1240 Client* client = static_cast<Client*>(cookie); 1241 if (client == NULL) { 1242 return; 1243 } 1244 1245 sp<IMediaPlayerClient> c; 1246 { 1247 Mutex::Autolock l(client->mLock); 1248 c = client->mClient; 1249 if (msg == MEDIA_PLAYBACK_COMPLETE && client->mNextClient != NULL) { 1250 if (client->mAudioOutput != NULL) 1251 client->mAudioOutput->switchToNextOutput(); 1252 client->mNextClient->start(); 1253 client->mNextClient->mClient->notify(MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj); 1254 } 1255 } 1256 1257 if (MEDIA_INFO == msg && 1258 MEDIA_INFO_METADATA_UPDATE == ext1) { 1259 const media::Metadata::Type metadata_type = ext2; 1260 1261 if(client->shouldDropMetadata(metadata_type)) { 1262 return; 1263 } 1264 1265 // Update the list of metadata that have changed. getMetadata 1266 // also access mMetadataUpdated and clears it. 1267 client->addNewMetadataUpdate(metadata_type); 1268 } 1269 1270 if (c != NULL) { 1271 ALOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1272 c->notify(msg, ext1, ext2, obj); 1273 } 1274 } 1275 1276 1277 bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1278 { 1279 Mutex::Autolock lock(mLock); 1280 1281 if (findMetadata(mMetadataDrop, code)) { 1282 return true; 1283 } 1284 1285 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1286 return false; 1287 } else { 1288 return true; 1289 } 1290 } 1291 1292 1293 void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1294 Mutex::Autolock lock(mLock); 1295 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1296 mMetadataUpdated.add(metadata_type); 1297 } 1298 } 1299 1300 #if CALLBACK_ANTAGONIZER 1301 const int Antagonizer::interval = 10000; // 10 msecs 1302 1303 Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1304 mExit(false), mActive(false), mClient(client), mCb(cb) 1305 { 1306 createThread(callbackThread, this); 1307 } 1308 1309 void Antagonizer::kill() 1310 { 1311 Mutex::Autolock _l(mLock); 1312 mActive = false; 1313 mExit = true; 1314 mCondition.wait(mLock); 1315 } 1316 1317 int Antagonizer::callbackThread(void* user) 1318 { 1319 ALOGD("Antagonizer started"); 1320 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1321 while (!p->mExit) { 1322 if (p->mActive) { 1323 ALOGV("send event"); 1324 p->mCb(p->mClient, 0, 0, 0); 1325 } 1326 usleep(interval); 1327 } 1328 Mutex::Autolock _l(p->mLock); 1329 p->mCondition.signal(); 1330 ALOGD("Antagonizer stopped"); 1331 return 0; 1332 } 1333 #endif 1334 1335 #undef LOG_TAG 1336 #define LOG_TAG "AudioSink" 1337 MediaPlayerService::AudioOutput::AudioOutput(int sessionId, int uid, int pid, 1338 const audio_attributes_t* attr) 1339 : mCallback(NULL), 1340 mCallbackCookie(NULL), 1341 mCallbackData(NULL), 1342 mBytesWritten(0), 1343 mStreamType(AUDIO_STREAM_MUSIC), 1344 mLeftVolume(1.0), 1345 mRightVolume(1.0), 1346 mPlaybackRate(AUDIO_PLAYBACK_RATE_DEFAULT), 1347 mSampleRateHz(0), 1348 mMsecsPerFrame(0), 1349 mFrameSize(0), 1350 mSessionId(sessionId), 1351 mUid(uid), 1352 mPid(pid), 1353 mSendLevel(0.0), 1354 mAuxEffectId(0), 1355 mFlags(AUDIO_OUTPUT_FLAG_NONE) 1356 { 1357 ALOGV("AudioOutput(%d)", sessionId); 1358 if (attr != NULL) { 1359 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1360 if (mAttributes != NULL) { 1361 memcpy(mAttributes, attr, sizeof(audio_attributes_t)); 1362 mStreamType = audio_attributes_to_stream_type(attr); 1363 } 1364 } else { 1365 mAttributes = NULL; 1366 } 1367 1368 setMinBufferCount(); 1369 } 1370 1371 MediaPlayerService::AudioOutput::~AudioOutput() 1372 { 1373 close(); 1374 free(mAttributes); 1375 delete mCallbackData; 1376 } 1377 1378 //static 1379 void MediaPlayerService::AudioOutput::setMinBufferCount() 1380 { 1381 char value[PROPERTY_VALUE_MAX]; 1382 if (property_get("ro.kernel.qemu", value, 0)) { 1383 mIsOnEmulator = true; 1384 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1385 } 1386 } 1387 1388 // static 1389 bool MediaPlayerService::AudioOutput::isOnEmulator() 1390 { 1391 setMinBufferCount(); // benign race wrt other threads 1392 return mIsOnEmulator; 1393 } 1394 1395 // static 1396 int MediaPlayerService::AudioOutput::getMinBufferCount() 1397 { 1398 setMinBufferCount(); // benign race wrt other threads 1399 return mMinBufferCount; 1400 } 1401 1402 ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1403 { 1404 Mutex::Autolock lock(mLock); 1405 if (mTrack == 0) return NO_INIT; 1406 return mTrack->frameCount() * mFrameSize; 1407 } 1408 1409 ssize_t MediaPlayerService::AudioOutput::frameCount() const 1410 { 1411 Mutex::Autolock lock(mLock); 1412 if (mTrack == 0) return NO_INIT; 1413 return mTrack->frameCount(); 1414 } 1415 1416 ssize_t MediaPlayerService::AudioOutput::channelCount() const 1417 { 1418 Mutex::Autolock lock(mLock); 1419 if (mTrack == 0) return NO_INIT; 1420 return mTrack->channelCount(); 1421 } 1422 1423 ssize_t MediaPlayerService::AudioOutput::frameSize() const 1424 { 1425 Mutex::Autolock lock(mLock); 1426 if (mTrack == 0) return NO_INIT; 1427 return mFrameSize; 1428 } 1429 1430 uint32_t MediaPlayerService::AudioOutput::latency () const 1431 { 1432 Mutex::Autolock lock(mLock); 1433 if (mTrack == 0) return 0; 1434 return mTrack->latency(); 1435 } 1436 1437 float MediaPlayerService::AudioOutput::msecsPerFrame() const 1438 { 1439 Mutex::Autolock lock(mLock); 1440 return mMsecsPerFrame; 1441 } 1442 1443 status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) const 1444 { 1445 Mutex::Autolock lock(mLock); 1446 if (mTrack == 0) return NO_INIT; 1447 return mTrack->getPosition(position); 1448 } 1449 1450 status_t MediaPlayerService::AudioOutput::getTimestamp(AudioTimestamp &ts) const 1451 { 1452 Mutex::Autolock lock(mLock); 1453 if (mTrack == 0) return NO_INIT; 1454 return mTrack->getTimestamp(ts); 1455 } 1456 1457 status_t MediaPlayerService::AudioOutput::getFramesWritten(uint32_t *frameswritten) const 1458 { 1459 Mutex::Autolock lock(mLock); 1460 if (mTrack == 0) return NO_INIT; 1461 *frameswritten = mBytesWritten / mFrameSize; 1462 return OK; 1463 } 1464 1465 status_t MediaPlayerService::AudioOutput::setParameters(const String8& keyValuePairs) 1466 { 1467 Mutex::Autolock lock(mLock); 1468 if (mTrack == 0) return NO_INIT; 1469 return mTrack->setParameters(keyValuePairs); 1470 } 1471 1472 String8 MediaPlayerService::AudioOutput::getParameters(const String8& keys) 1473 { 1474 Mutex::Autolock lock(mLock); 1475 if (mTrack == 0) return String8::empty(); 1476 return mTrack->getParameters(keys); 1477 } 1478 1479 void MediaPlayerService::AudioOutput::setAudioAttributes(const audio_attributes_t * attributes) { 1480 Mutex::Autolock lock(mLock); 1481 if (attributes == NULL) { 1482 free(mAttributes); 1483 mAttributes = NULL; 1484 } else { 1485 if (mAttributes == NULL) { 1486 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1487 } 1488 memcpy(mAttributes, attributes, sizeof(audio_attributes_t)); 1489 mStreamType = audio_attributes_to_stream_type(attributes); 1490 } 1491 } 1492 1493 void MediaPlayerService::AudioOutput::setAudioStreamType(audio_stream_type_t streamType) 1494 { 1495 Mutex::Autolock lock(mLock); 1496 // do not allow direct stream type modification if attributes have been set 1497 if (mAttributes == NULL) { 1498 mStreamType = streamType; 1499 } 1500 } 1501 1502 void MediaPlayerService::AudioOutput::deleteRecycledTrack_l() 1503 { 1504 ALOGV("deleteRecycledTrack_l"); 1505 if (mRecycledTrack != 0) { 1506 1507 if (mCallbackData != NULL) { 1508 mCallbackData->setOutput(NULL); 1509 mCallbackData->endTrackSwitch(); 1510 } 1511 1512 if ((mRecycledTrack->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) { 1513 mRecycledTrack->flush(); 1514 } 1515 // An offloaded track isn't flushed because the STREAM_END is reported 1516 // slightly prematurely to allow time for the gapless track switch 1517 // but this means that if we decide not to recycle the track there 1518 // could be a small amount of residual data still playing. We leave 1519 // AudioFlinger to drain the track. 1520 1521 mRecycledTrack.clear(); 1522 close_l(); 1523 delete mCallbackData; 1524 mCallbackData = NULL; 1525 } 1526 } 1527 1528 void MediaPlayerService::AudioOutput::close_l() 1529 { 1530 mTrack.clear(); 1531 } 1532 1533 status_t MediaPlayerService::AudioOutput::open( 1534 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 1535 audio_format_t format, int bufferCount, 1536 AudioCallback cb, void *cookie, 1537 audio_output_flags_t flags, 1538 const audio_offload_info_t *offloadInfo, 1539 bool doNotReconnect, 1540 uint32_t suggestedFrameCount) 1541 { 1542 ALOGV("open(%u, %d, 0x%x, 0x%x, %d, %d 0x%x)", sampleRate, channelCount, channelMask, 1543 format, bufferCount, mSessionId, flags); 1544 1545 // offloading is only supported in callback mode for now. 1546 // offloadInfo must be present if offload flag is set 1547 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) && 1548 ((cb == NULL) || (offloadInfo == NULL))) { 1549 return BAD_VALUE; 1550 } 1551 1552 // compute frame count for the AudioTrack internal buffer 1553 size_t frameCount; 1554 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1555 frameCount = 0; // AudioTrack will get frame count from AudioFlinger 1556 } else { 1557 // try to estimate the buffer processing fetch size from AudioFlinger. 1558 // framesPerBuffer is approximate and generally correct, except when it's not :-). 1559 uint32_t afSampleRate; 1560 size_t afFrameCount; 1561 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1562 return NO_INIT; 1563 } 1564 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1565 return NO_INIT; 1566 } 1567 const size_t framesPerBuffer = 1568 (unsigned long long)sampleRate * afFrameCount / afSampleRate; 1569 1570 if (bufferCount == 0) { 1571 // use suggestedFrameCount 1572 bufferCount = (suggestedFrameCount + framesPerBuffer - 1) / framesPerBuffer; 1573 } 1574 // Check argument bufferCount against the mininum buffer count 1575 if (bufferCount != 0 && bufferCount < mMinBufferCount) { 1576 ALOGV("bufferCount (%d) increased to %d", bufferCount, mMinBufferCount); 1577 bufferCount = mMinBufferCount; 1578 } 1579 // if frameCount is 0, then AudioTrack will get frame count from AudioFlinger 1580 // which will be the minimum size permitted. 1581 frameCount = bufferCount * framesPerBuffer; 1582 } 1583 1584 if (channelMask == CHANNEL_MASK_USE_CHANNEL_ORDER) { 1585 channelMask = audio_channel_out_mask_from_count(channelCount); 1586 if (0 == channelMask) { 1587 ALOGE("open() error, can\'t derive mask for %d audio channels", channelCount); 1588 return NO_INIT; 1589 } 1590 } 1591 1592 Mutex::Autolock lock(mLock); 1593 mCallback = cb; 1594 mCallbackCookie = cookie; 1595 1596 // Check whether we can recycle the track 1597 bool reuse = false; 1598 bool bothOffloaded = false; 1599 1600 if (mRecycledTrack != 0) { 1601 // check whether we are switching between two offloaded tracks 1602 bothOffloaded = (flags & mRecycledTrack->getFlags() 1603 & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; 1604 1605 // check if the existing track can be reused as-is, or if a new track needs to be created. 1606 reuse = true; 1607 1608 if ((mCallbackData == NULL && mCallback != NULL) || 1609 (mCallbackData != NULL && mCallback == NULL)) { 1610 // recycled track uses callbacks but the caller wants to use writes, or vice versa 1611 ALOGV("can't chain callback and write"); 1612 reuse = false; 1613 } else if ((mRecycledTrack->getSampleRate() != sampleRate) || 1614 (mRecycledTrack->channelCount() != (uint32_t)channelCount) ) { 1615 ALOGV("samplerate, channelcount differ: %u/%u Hz, %u/%d ch", 1616 mRecycledTrack->getSampleRate(), sampleRate, 1617 mRecycledTrack->channelCount(), channelCount); 1618 reuse = false; 1619 } else if (flags != mFlags) { 1620 ALOGV("output flags differ %08x/%08x", flags, mFlags); 1621 reuse = false; 1622 } else if (mRecycledTrack->format() != format) { 1623 reuse = false; 1624 } 1625 } else { 1626 ALOGV("no track available to recycle"); 1627 } 1628 1629 ALOGV_IF(bothOffloaded, "both tracks offloaded"); 1630 1631 // If we can't recycle and both tracks are offloaded 1632 // we must close the previous output before opening a new one 1633 if (bothOffloaded && !reuse) { 1634 ALOGV("both offloaded and not recycling"); 1635 deleteRecycledTrack_l(); 1636 } 1637 1638 sp<AudioTrack> t; 1639 CallbackData *newcbd = NULL; 1640 1641 // We don't attempt to create a new track if we are recycling an 1642 // offloaded track. But, if we are recycling a non-offloaded or we 1643 // are switching where one is offloaded and one isn't then we create 1644 // the new track in advance so that we can read additional stream info 1645 1646 if (!(reuse && bothOffloaded)) { 1647 ALOGV("creating new AudioTrack"); 1648 1649 if (mCallback != NULL) { 1650 newcbd = new CallbackData(this); 1651 t = new AudioTrack( 1652 mStreamType, 1653 sampleRate, 1654 format, 1655 channelMask, 1656 frameCount, 1657 flags, 1658 CallbackWrapper, 1659 newcbd, 1660 0, // notification frames 1661 mSessionId, 1662 AudioTrack::TRANSFER_CALLBACK, 1663 offloadInfo, 1664 mUid, 1665 mPid, 1666 mAttributes, 1667 doNotReconnect); 1668 } else { 1669 t = new AudioTrack( 1670 mStreamType, 1671 sampleRate, 1672 format, 1673 channelMask, 1674 frameCount, 1675 flags, 1676 NULL, // callback 1677 NULL, // user data 1678 0, // notification frames 1679 mSessionId, 1680 AudioTrack::TRANSFER_DEFAULT, 1681 NULL, // offload info 1682 mUid, 1683 mPid, 1684 mAttributes, 1685 doNotReconnect); 1686 } 1687 1688 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1689 ALOGE("Unable to create audio track"); 1690 delete newcbd; 1691 // t goes out of scope, so reference count drops to zero 1692 return NO_INIT; 1693 } else { 1694 // successful AudioTrack initialization implies a legacy stream type was generated 1695 // from the audio attributes 1696 mStreamType = t->streamType(); 1697 } 1698 } 1699 1700 if (reuse) { 1701 CHECK(mRecycledTrack != NULL); 1702 1703 if (!bothOffloaded) { 1704 if (mRecycledTrack->frameCount() != t->frameCount()) { 1705 ALOGV("framecount differs: %u/%u frames", 1706 mRecycledTrack->frameCount(), t->frameCount()); 1707 reuse = false; 1708 } 1709 } 1710 1711 if (reuse) { 1712 ALOGV("chaining to next output and recycling track"); 1713 close_l(); 1714 mTrack = mRecycledTrack; 1715 mRecycledTrack.clear(); 1716 if (mCallbackData != NULL) { 1717 mCallbackData->setOutput(this); 1718 } 1719 delete newcbd; 1720 return OK; 1721 } 1722 } 1723 1724 // we're not going to reuse the track, unblock and flush it 1725 // this was done earlier if both tracks are offloaded 1726 if (!bothOffloaded) { 1727 deleteRecycledTrack_l(); 1728 } 1729 1730 CHECK((t != NULL) && ((mCallback == NULL) || (newcbd != NULL))); 1731 1732 mCallbackData = newcbd; 1733 ALOGV("setVolume"); 1734 t->setVolume(mLeftVolume, mRightVolume); 1735 1736 mSampleRateHz = sampleRate; 1737 mFlags = t->getFlags(); // we suggest the flags above, but new AudioTrack() may not grant it. 1738 mMsecsPerFrame = 1E3f / (mPlaybackRate.mSpeed * sampleRate); 1739 mFrameSize = t->frameSize(); 1740 uint32_t pos; 1741 if (t->getPosition(&pos) == OK) { 1742 mBytesWritten = uint64_t(pos) * mFrameSize; 1743 } 1744 mTrack = t; 1745 1746 status_t res = NO_ERROR; 1747 // Note some output devices may give us a direct track even though we don't specify it. 1748 // Example: Line application b/17459982. 1749 if ((mFlags & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD | AUDIO_OUTPUT_FLAG_DIRECT)) == 0) { 1750 res = t->setPlaybackRate(mPlaybackRate); 1751 if (res == NO_ERROR) { 1752 t->setAuxEffectSendLevel(mSendLevel); 1753 res = t->attachAuxEffect(mAuxEffectId); 1754 } 1755 } 1756 ALOGV("open() DONE status %d", res); 1757 return res; 1758 } 1759 1760 status_t MediaPlayerService::AudioOutput::start() 1761 { 1762 ALOGV("start"); 1763 Mutex::Autolock lock(mLock); 1764 if (mCallbackData != NULL) { 1765 mCallbackData->endTrackSwitch(); 1766 } 1767 if (mTrack != 0) { 1768 mTrack->setVolume(mLeftVolume, mRightVolume); 1769 mTrack->setAuxEffectSendLevel(mSendLevel); 1770 return mTrack->start(); 1771 } 1772 return NO_INIT; 1773 } 1774 1775 void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) { 1776 Mutex::Autolock lock(mLock); 1777 mNextOutput = nextOutput; 1778 } 1779 1780 void MediaPlayerService::AudioOutput::switchToNextOutput() { 1781 ALOGV("switchToNextOutput"); 1782 1783 // Try to acquire the callback lock before moving track (without incurring deadlock). 1784 const unsigned kMaxSwitchTries = 100; 1785 Mutex::Autolock lock(mLock); 1786 for (unsigned tries = 0;;) { 1787 if (mTrack == 0) { 1788 return; 1789 } 1790 if (mNextOutput != NULL && mNextOutput != this) { 1791 if (mCallbackData != NULL) { 1792 // two alternative approaches 1793 #if 1 1794 CallbackData *callbackData = mCallbackData; 1795 mLock.unlock(); 1796 // proper acquisition sequence 1797 callbackData->lock(); 1798 mLock.lock(); 1799 // Caution: it is unlikely that someone deleted our callback or changed our target 1800 if (callbackData != mCallbackData || mNextOutput == NULL || mNextOutput == this) { 1801 // fatal if we are starved out. 1802 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries, 1803 "switchToNextOutput() cannot obtain correct lock sequence"); 1804 callbackData->unlock(); 1805 continue; 1806 } 1807 callbackData->mSwitching = true; // begin track switch 1808 #else 1809 // tryBeginTrackSwitch() returns false if the callback has the lock. 1810 if (!mCallbackData->tryBeginTrackSwitch()) { 1811 // fatal if we are starved out. 1812 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries, 1813 "switchToNextOutput() cannot obtain callback lock"); 1814 mLock.unlock(); 1815 usleep(5 * 1000 /* usec */); // allow callback to use AudioOutput 1816 mLock.lock(); 1817 continue; 1818 } 1819 #endif 1820 } 1821 1822 Mutex::Autolock nextLock(mNextOutput->mLock); 1823 1824 // If the next output track is not NULL, then it has been 1825 // opened already for playback. 1826 // This is possible even without the next player being started, 1827 // for example, the next player could be prepared and seeked. 1828 // 1829 // Presuming it isn't advisable to force the track over. 1830 if (mNextOutput->mTrack == NULL) { 1831 ALOGD("Recycling track for gapless playback"); 1832 delete mNextOutput->mCallbackData; 1833 mNextOutput->mCallbackData = mCallbackData; 1834 mNextOutput->mRecycledTrack = mTrack; 1835 mNextOutput->mSampleRateHz = mSampleRateHz; 1836 mNextOutput->mMsecsPerFrame = mMsecsPerFrame; 1837 mNextOutput->mBytesWritten = mBytesWritten; 1838 mNextOutput->mFlags = mFlags; 1839 mNextOutput->mFrameSize = mFrameSize; 1840 close_l(); 1841 mCallbackData = NULL; // destruction handled by mNextOutput 1842 } else { 1843 ALOGW("Ignoring gapless playback because next player has already started"); 1844 // remove track in case resource needed for future players. 1845 if (mCallbackData != NULL) { 1846 mCallbackData->endTrackSwitch(); // release lock for callbacks before close. 1847 } 1848 close_l(); 1849 } 1850 } 1851 break; 1852 } 1853 } 1854 1855 ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size, bool blocking) 1856 { 1857 Mutex::Autolock lock(mLock); 1858 LOG_ALWAYS_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 1859 1860 //ALOGV("write(%p, %u)", buffer, size); 1861 if (mTrack != 0) { 1862 ssize_t ret = mTrack->write(buffer, size, blocking); 1863 if (ret >= 0) { 1864 mBytesWritten += ret; 1865 } 1866 return ret; 1867 } 1868 return NO_INIT; 1869 } 1870 1871 void MediaPlayerService::AudioOutput::stop() 1872 { 1873 ALOGV("stop"); 1874 Mutex::Autolock lock(mLock); 1875 mBytesWritten = 0; 1876 if (mTrack != 0) mTrack->stop(); 1877 } 1878 1879 void MediaPlayerService::AudioOutput::flush() 1880 { 1881 ALOGV("flush"); 1882 Mutex::Autolock lock(mLock); 1883 mBytesWritten = 0; 1884 if (mTrack != 0) mTrack->flush(); 1885 } 1886 1887 void MediaPlayerService::AudioOutput::pause() 1888 { 1889 ALOGV("pause"); 1890 Mutex::Autolock lock(mLock); 1891 if (mTrack != 0) mTrack->pause(); 1892 } 1893 1894 void MediaPlayerService::AudioOutput::close() 1895 { 1896 ALOGV("close"); 1897 Mutex::Autolock lock(mLock); 1898 close_l(); 1899 } 1900 1901 void MediaPlayerService::AudioOutput::setVolume(float left, float right) 1902 { 1903 ALOGV("setVolume(%f, %f)", left, right); 1904 Mutex::Autolock lock(mLock); 1905 mLeftVolume = left; 1906 mRightVolume = right; 1907 if (mTrack != 0) { 1908 mTrack->setVolume(left, right); 1909 } 1910 } 1911 1912 status_t MediaPlayerService::AudioOutput::setPlaybackRate(const AudioPlaybackRate &rate) 1913 { 1914 ALOGV("setPlaybackRate(%f %f %d %d)", 1915 rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode); 1916 Mutex::Autolock lock(mLock); 1917 if (mTrack == 0) { 1918 // remember rate so that we can set it when the track is opened 1919 mPlaybackRate = rate; 1920 return OK; 1921 } 1922 status_t res = mTrack->setPlaybackRate(rate); 1923 if (res != NO_ERROR) { 1924 return res; 1925 } 1926 // rate.mSpeed is always greater than 0 if setPlaybackRate succeeded 1927 CHECK_GT(rate.mSpeed, 0.f); 1928 mPlaybackRate = rate; 1929 if (mSampleRateHz != 0) { 1930 mMsecsPerFrame = 1E3f / (rate.mSpeed * mSampleRateHz); 1931 } 1932 return res; 1933 } 1934 1935 status_t MediaPlayerService::AudioOutput::getPlaybackRate(AudioPlaybackRate *rate) 1936 { 1937 ALOGV("setPlaybackRate"); 1938 Mutex::Autolock lock(mLock); 1939 if (mTrack == 0) { 1940 return NO_INIT; 1941 } 1942 *rate = mTrack->getPlaybackRate(); 1943 return NO_ERROR; 1944 } 1945 1946 status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level) 1947 { 1948 ALOGV("setAuxEffectSendLevel(%f)", level); 1949 Mutex::Autolock lock(mLock); 1950 mSendLevel = level; 1951 if (mTrack != 0) { 1952 return mTrack->setAuxEffectSendLevel(level); 1953 } 1954 return NO_ERROR; 1955 } 1956 1957 status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId) 1958 { 1959 ALOGV("attachAuxEffect(%d)", effectId); 1960 Mutex::Autolock lock(mLock); 1961 mAuxEffectId = effectId; 1962 if (mTrack != 0) { 1963 return mTrack->attachAuxEffect(effectId); 1964 } 1965 return NO_ERROR; 1966 } 1967 1968 // static 1969 void MediaPlayerService::AudioOutput::CallbackWrapper( 1970 int event, void *cookie, void *info) { 1971 //ALOGV("callbackwrapper"); 1972 CallbackData *data = (CallbackData*)cookie; 1973 // lock to ensure we aren't caught in the middle of a track switch. 1974 data->lock(); 1975 AudioOutput *me = data->getOutput(); 1976 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 1977 if (me == NULL) { 1978 // no output set, likely because the track was scheduled to be reused 1979 // by another player, but the format turned out to be incompatible. 1980 data->unlock(); 1981 if (buffer != NULL) { 1982 buffer->size = 0; 1983 } 1984 return; 1985 } 1986 1987 switch(event) { 1988 case AudioTrack::EVENT_MORE_DATA: { 1989 size_t actualSize = (*me->mCallback)( 1990 me, buffer->raw, buffer->size, me->mCallbackCookie, 1991 CB_EVENT_FILL_BUFFER); 1992 1993 // Log when no data is returned from the callback. 1994 // (1) We may have no data (especially with network streaming sources). 1995 // (2) We may have reached the EOS and the audio track is not stopped yet. 1996 // Note that AwesomePlayer/AudioPlayer will only return zero size when it reaches the EOS. 1997 // NuPlayerRenderer will return zero when it doesn't have data (it doesn't block to fill). 1998 // 1999 // This is a benign busy-wait, with the next data request generated 10 ms or more later; 2000 // nevertheless for power reasons, we don't want to see too many of these. 2001 2002 ALOGV_IF(actualSize == 0 && buffer->size > 0, "callbackwrapper: empty buffer returned"); 2003 2004 me->mBytesWritten += actualSize; // benign race with reader. 2005 buffer->size = actualSize; 2006 } break; 2007 2008 case AudioTrack::EVENT_STREAM_END: 2009 // currently only occurs for offloaded callbacks 2010 ALOGV("callbackwrapper: deliver EVENT_STREAM_END"); 2011 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 2012 me->mCallbackCookie, CB_EVENT_STREAM_END); 2013 break; 2014 2015 case AudioTrack::EVENT_NEW_IAUDIOTRACK : 2016 ALOGV("callbackwrapper: deliver EVENT_TEAR_DOWN"); 2017 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 2018 me->mCallbackCookie, CB_EVENT_TEAR_DOWN); 2019 break; 2020 2021 case AudioTrack::EVENT_UNDERRUN: 2022 // This occurs when there is no data available, typically 2023 // when there is a failure to supply data to the AudioTrack. It can also 2024 // occur in non-offloaded mode when the audio device comes out of standby. 2025 // 2026 // If an AudioTrack underruns it outputs silence. Since this happens suddenly 2027 // it may sound like an audible pop or glitch. 2028 // 2029 // The underrun event is sent once per track underrun; the condition is reset 2030 // when more data is sent to the AudioTrack. 2031 ALOGI("callbackwrapper: EVENT_UNDERRUN (discarded)"); 2032 break; 2033 2034 default: 2035 ALOGE("received unknown event type: %d inside CallbackWrapper !", event); 2036 } 2037 2038 data->unlock(); 2039 } 2040 2041 int MediaPlayerService::AudioOutput::getSessionId() const 2042 { 2043 Mutex::Autolock lock(mLock); 2044 return mSessionId; 2045 } 2046 2047 uint32_t MediaPlayerService::AudioOutput::getSampleRate() const 2048 { 2049 Mutex::Autolock lock(mLock); 2050 if (mTrack == 0) return 0; 2051 return mTrack->getSampleRate(); 2052 } 2053 2054 //////////////////////////////////////////////////////////////////////////////// 2055 2056 struct CallbackThread : public Thread { 2057 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 2058 MediaPlayerBase::AudioSink::AudioCallback cb, 2059 void *cookie); 2060 2061 protected: 2062 virtual ~CallbackThread(); 2063 2064 virtual bool threadLoop(); 2065 2066 private: 2067 wp<MediaPlayerBase::AudioSink> mSink; 2068 MediaPlayerBase::AudioSink::AudioCallback mCallback; 2069 void *mCookie; 2070 void *mBuffer; 2071 size_t mBufferSize; 2072 2073 CallbackThread(const CallbackThread &); 2074 CallbackThread &operator=(const CallbackThread &); 2075 }; 2076 2077 CallbackThread::CallbackThread( 2078 const wp<MediaPlayerBase::AudioSink> &sink, 2079 MediaPlayerBase::AudioSink::AudioCallback cb, 2080 void *cookie) 2081 : mSink(sink), 2082 mCallback(cb), 2083 mCookie(cookie), 2084 mBuffer(NULL), 2085 mBufferSize(0) { 2086 } 2087 2088 CallbackThread::~CallbackThread() { 2089 if (mBuffer) { 2090 free(mBuffer); 2091 mBuffer = NULL; 2092 } 2093 } 2094 2095 bool CallbackThread::threadLoop() { 2096 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 2097 if (sink == NULL) { 2098 return false; 2099 } 2100 2101 if (mBuffer == NULL) { 2102 mBufferSize = sink->bufferSize(); 2103 mBuffer = malloc(mBufferSize); 2104 } 2105 2106 size_t actualSize = 2107 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie, 2108 MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER); 2109 2110 if (actualSize > 0) { 2111 sink->write(mBuffer, actualSize); 2112 // Could return false on sink->write() error or short count. 2113 // Not necessarily appropriate but would work for AudioCache behavior. 2114 } 2115 2116 return true; 2117 } 2118 2119 //////////////////////////////////////////////////////////////////////////////// 2120 2121 void MediaPlayerService::addBatteryData(uint32_t params) 2122 { 2123 Mutex::Autolock lock(mLock); 2124 2125 int32_t time = systemTime() / 1000000L; 2126 2127 // change audio output devices. This notification comes from AudioFlinger 2128 if ((params & kBatteryDataSpeakerOn) 2129 || (params & kBatteryDataOtherAudioDeviceOn)) { 2130 2131 int deviceOn[NUM_AUDIO_DEVICES]; 2132 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2133 deviceOn[i] = 0; 2134 } 2135 2136 if ((params & kBatteryDataSpeakerOn) 2137 && (params & kBatteryDataOtherAudioDeviceOn)) { 2138 deviceOn[SPEAKER_AND_OTHER] = 1; 2139 } else if (params & kBatteryDataSpeakerOn) { 2140 deviceOn[SPEAKER] = 1; 2141 } else { 2142 deviceOn[OTHER_AUDIO_DEVICE] = 1; 2143 } 2144 2145 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2146 if (mBatteryAudio.deviceOn[i] != deviceOn[i]){ 2147 2148 if (mBatteryAudio.refCount > 0) { // if playing audio 2149 if (!deviceOn[i]) { 2150 mBatteryAudio.lastTime[i] += time; 2151 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2152 mBatteryAudio.lastTime[i] = 0; 2153 } else { 2154 mBatteryAudio.lastTime[i] = 0 - time; 2155 } 2156 } 2157 2158 mBatteryAudio.deviceOn[i] = deviceOn[i]; 2159 } 2160 } 2161 return; 2162 } 2163 2164 // an audio stream is started 2165 if (params & kBatteryDataAudioFlingerStart) { 2166 // record the start time only if currently no other audio 2167 // is being played 2168 if (mBatteryAudio.refCount == 0) { 2169 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2170 if (mBatteryAudio.deviceOn[i]) { 2171 mBatteryAudio.lastTime[i] -= time; 2172 } 2173 } 2174 } 2175 2176 mBatteryAudio.refCount ++; 2177 return; 2178 2179 } else if (params & kBatteryDataAudioFlingerStop) { 2180 if (mBatteryAudio.refCount <= 0) { 2181 ALOGW("Battery track warning: refCount is <= 0"); 2182 return; 2183 } 2184 2185 // record the stop time only if currently this is the only 2186 // audio being played 2187 if (mBatteryAudio.refCount == 1) { 2188 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2189 if (mBatteryAudio.deviceOn[i]) { 2190 mBatteryAudio.lastTime[i] += time; 2191 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2192 mBatteryAudio.lastTime[i] = 0; 2193 } 2194 } 2195 } 2196 2197 mBatteryAudio.refCount --; 2198 return; 2199 } 2200 2201 int uid = IPCThreadState::self()->getCallingUid(); 2202 if (uid == AID_MEDIA) { 2203 return; 2204 } 2205 int index = mBatteryData.indexOfKey(uid); 2206 2207 if (index < 0) { // create a new entry for this UID 2208 BatteryUsageInfo info; 2209 info.audioTotalTime = 0; 2210 info.videoTotalTime = 0; 2211 info.audioLastTime = 0; 2212 info.videoLastTime = 0; 2213 info.refCount = 0; 2214 2215 if (mBatteryData.add(uid, info) == NO_MEMORY) { 2216 ALOGE("Battery track error: no memory for new app"); 2217 return; 2218 } 2219 } 2220 2221 BatteryUsageInfo &info = mBatteryData.editValueFor(uid); 2222 2223 if (params & kBatteryDataCodecStarted) { 2224 if (params & kBatteryDataTrackAudio) { 2225 info.audioLastTime -= time; 2226 info.refCount ++; 2227 } 2228 if (params & kBatteryDataTrackVideo) { 2229 info.videoLastTime -= time; 2230 info.refCount ++; 2231 } 2232 } else { 2233 if (info.refCount == 0) { 2234 ALOGW("Battery track warning: refCount is already 0"); 2235 return; 2236 } else if (info.refCount < 0) { 2237 ALOGE("Battery track error: refCount < 0"); 2238 mBatteryData.removeItem(uid); 2239 return; 2240 } 2241 2242 if (params & kBatteryDataTrackAudio) { 2243 info.audioLastTime += time; 2244 info.refCount --; 2245 } 2246 if (params & kBatteryDataTrackVideo) { 2247 info.videoLastTime += time; 2248 info.refCount --; 2249 } 2250 2251 // no stream is being played by this UID 2252 if (info.refCount == 0) { 2253 info.audioTotalTime += info.audioLastTime; 2254 info.audioLastTime = 0; 2255 info.videoTotalTime += info.videoLastTime; 2256 info.videoLastTime = 0; 2257 } 2258 } 2259 } 2260 2261 status_t MediaPlayerService::pullBatteryData(Parcel* reply) { 2262 Mutex::Autolock lock(mLock); 2263 2264 // audio output devices usage 2265 int32_t time = systemTime() / 1000000L; //in ms 2266 int32_t totalTime; 2267 2268 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2269 totalTime = mBatteryAudio.totalTime[i]; 2270 2271 if (mBatteryAudio.deviceOn[i] 2272 && (mBatteryAudio.lastTime[i] != 0)) { 2273 int32_t tmpTime = mBatteryAudio.lastTime[i] + time; 2274 totalTime += tmpTime; 2275 } 2276 2277 reply->writeInt32(totalTime); 2278 // reset the total time 2279 mBatteryAudio.totalTime[i] = 0; 2280 } 2281 2282 // codec usage 2283 BatteryUsageInfo info; 2284 int size = mBatteryData.size(); 2285 2286 reply->writeInt32(size); 2287 int i = 0; 2288 2289 while (i < size) { 2290 info = mBatteryData.valueAt(i); 2291 2292 reply->writeInt32(mBatteryData.keyAt(i)); //UID 2293 reply->writeInt32(info.audioTotalTime); 2294 reply->writeInt32(info.videoTotalTime); 2295 2296 info.audioTotalTime = 0; 2297 info.videoTotalTime = 0; 2298 2299 // remove the UID entry where no stream is being played 2300 if (info.refCount <= 0) { 2301 mBatteryData.removeItemsAt(i); 2302 size --; 2303 i --; 2304 } 2305 i++; 2306 } 2307 return NO_ERROR; 2308 } 2309 } // namespace android 2310