MediaPlayerService.cpp revision 2f6e73db45995636e5405fb2e1063a55550ba10f
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 <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 "nuplayer/NuPlayerDriver.h" 77 78#include <OMX.h> 79 80#include "Crypto.h" 81#include "Drm.h" 82#include "HDCP.h" 83#include "HTTPBase.h" 84#include "RemoteDisplay.h" 85 86namespace { 87using android::media::Metadata; 88using android::status_t; 89using android::OK; 90using android::BAD_VALUE; 91using android::NOT_ENOUGH_DATA; 92using android::Parcel; 93 94// Max number of entries in the filter. 95const int kMaxFilterSize = 64; // I pulled that out of thin air. 96 97// FIXME: Move all the metadata related function in the Metadata.cpp 98 99 100// Unmarshall a filter from a Parcel. 101// Filter format in a parcel: 102// 103// 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 1 104// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 105// | number of entries (n) | 106// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 107// | metadata type 1 | 108// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 109// | metadata type 2 | 110// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 111// .... 112// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 113// | metadata type n | 114// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 115// 116// @param p Parcel that should start with a filter. 117// @param[out] filter On exit contains the list of metadata type to be 118// filtered. 119// @param[out] status On exit contains the status code to be returned. 120// @return true if the parcel starts with a valid filter. 121bool unmarshallFilter(const Parcel& p, 122 Metadata::Filter *filter, 123 status_t *status) 124{ 125 int32_t val; 126 if (p.readInt32(&val) != OK) 127 { 128 ALOGE("Failed to read filter's length"); 129 *status = NOT_ENOUGH_DATA; 130 return false; 131 } 132 133 if( val > kMaxFilterSize || val < 0) 134 { 135 ALOGE("Invalid filter len %d", val); 136 *status = BAD_VALUE; 137 return false; 138 } 139 140 const size_t num = val; 141 142 filter->clear(); 143 filter->setCapacity(num); 144 145 size_t size = num * sizeof(Metadata::Type); 146 147 148 if (p.dataAvail() < size) 149 { 150 ALOGE("Filter too short expected %d but got %d", size, p.dataAvail()); 151 *status = NOT_ENOUGH_DATA; 152 return false; 153 } 154 155 const Metadata::Type *data = 156 static_cast<const Metadata::Type*>(p.readInplace(size)); 157 158 if (NULL == data) 159 { 160 ALOGE("Filter had no data"); 161 *status = BAD_VALUE; 162 return false; 163 } 164 165 // TODO: The stl impl of vector would be more efficient here 166 // because it degenerates into a memcpy on pod types. Try to 167 // replace later or use stl::set. 168 for (size_t i = 0; i < num; ++i) 169 { 170 filter->add(*data); 171 ++data; 172 } 173 *status = OK; 174 return true; 175} 176 177// @param filter Of metadata type. 178// @param val To be searched. 179// @return true if a match was found. 180bool findMetadata(const Metadata::Filter& filter, const int32_t val) 181{ 182 // Deal with empty and ANY right away 183 if (filter.isEmpty()) return false; 184 if (filter[0] == Metadata::kAny) return true; 185 186 return filter.indexOf(val) >= 0; 187} 188 189} // anonymous namespace 190 191 192namespace { 193using android::Parcel; 194using android::String16; 195 196// marshalling tag indicating flattened utf16 tags 197// keep in sync with frameworks/base/media/java/android/media/AudioAttributes.java 198const int32_t kAudioAttributesMarshallTagFlattenTags = 1; 199 200// Audio attributes format in a parcel: 201// 202// 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 1 203// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 204// | usage | 205// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 206// | content_type | 207// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 208// | source | 209// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 210// | flags | 211// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 212// | kAudioAttributesMarshallTagFlattenTags | // ignore tags if not found 213// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 214// | flattened tags in UTF16 | 215// | ... | 216// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 217// 218// @param p Parcel that contains audio attributes. 219// @param[out] attributes On exit points to an initialized audio_attributes_t structure 220// @param[out] status On exit contains the status code to be returned. 221void unmarshallAudioAttributes(const Parcel& parcel, audio_attributes_t *attributes) 222{ 223 attributes->usage = (audio_usage_t) parcel.readInt32(); 224 attributes->content_type = (audio_content_type_t) parcel.readInt32(); 225 attributes->source = (audio_source_t) parcel.readInt32(); 226 attributes->flags = (audio_flags_mask_t) parcel.readInt32(); 227 const bool hasFlattenedTag = (parcel.readInt32() == kAudioAttributesMarshallTagFlattenTags); 228 if (hasFlattenedTag) { 229 // the tags are UTF16, convert to UTF8 230 String16 tags = parcel.readString16(); 231 ssize_t realTagSize = utf16_to_utf8_length(tags.string(), tags.size()); 232 if (realTagSize <= 0) { 233 strcpy(attributes->tags, ""); 234 } else { 235 // copy the flattened string into the attributes as the destination for the conversion: 236 // copying array size -1, array for tags was calloc'd, no need to NULL-terminate it 237 size_t tagSize = realTagSize > AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 ? 238 AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 : realTagSize; 239 utf16_to_utf8(tags.string(), tagSize, attributes->tags); 240 } 241 } else { 242 ALOGE("unmarshallAudioAttributes() received unflattened tags, ignoring tag values"); 243 strcpy(attributes->tags, ""); 244 } 245} 246} // anonymous namespace 247 248 249namespace android { 250 251extern ALooperRoster gLooperRoster; 252 253 254static bool checkPermission(const char* permissionString) { 255 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 256 bool ok = checkCallingPermission(String16(permissionString)); 257 if (!ok) ALOGE("Request requires %s", permissionString); 258 return ok; 259} 260 261// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround 262/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4; 263/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false; 264 265void MediaPlayerService::instantiate() { 266 defaultServiceManager()->addService( 267 String16("media.player"), new MediaPlayerService()); 268} 269 270MediaPlayerService::MediaPlayerService() 271{ 272 ALOGV("MediaPlayerService created"); 273 mNextConnId = 1; 274 275 mBatteryAudio.refCount = 0; 276 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 277 mBatteryAudio.deviceOn[i] = 0; 278 mBatteryAudio.lastTime[i] = 0; 279 mBatteryAudio.totalTime[i] = 0; 280 } 281 // speaker is on by default 282 mBatteryAudio.deviceOn[SPEAKER] = 1; 283 284 // reset battery stats 285 // if the mediaserver has crashed, battery stats could be left 286 // in bad state, reset the state upon service start. 287 BatteryNotifier::getInstance().noteResetVideo(); 288 289 MediaPlayerFactory::registerBuiltinFactories(); 290} 291 292MediaPlayerService::~MediaPlayerService() 293{ 294 ALOGV("MediaPlayerService destroyed"); 295} 296 297sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(const String16 &opPackageName) 298{ 299 pid_t pid = IPCThreadState::self()->getCallingPid(); 300 sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid, opPackageName); 301 wp<MediaRecorderClient> w = recorder; 302 Mutex::Autolock lock(mLock); 303 mMediaRecorderClients.add(w); 304 ALOGV("Create new media recorder client from pid %d", pid); 305 return recorder; 306} 307 308void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client) 309{ 310 Mutex::Autolock lock(mLock); 311 mMediaRecorderClients.remove(client); 312 ALOGV("Delete media recorder client"); 313} 314 315sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever() 316{ 317 pid_t pid = IPCThreadState::self()->getCallingPid(); 318 sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid); 319 ALOGV("Create new media retriever from pid %d", pid); 320 return retriever; 321} 322 323sp<IMediaPlayer> MediaPlayerService::create(const sp<IMediaPlayerClient>& client, 324 audio_session_t audioSessionId) 325{ 326 pid_t pid = IPCThreadState::self()->getCallingPid(); 327 int32_t connId = android_atomic_inc(&mNextConnId); 328 329 sp<Client> c = new Client( 330 this, pid, connId, client, audioSessionId, 331 IPCThreadState::self()->getCallingUid()); 332 333 ALOGV("Create new client(%d) from pid %d, uid %d, ", connId, pid, 334 IPCThreadState::self()->getCallingUid()); 335 336 wp<Client> w = c; 337 { 338 Mutex::Autolock lock(mLock); 339 mClients.add(w); 340 } 341 return c; 342} 343 344sp<IMediaCodecList> MediaPlayerService::getCodecList() const { 345 return MediaCodecList::getLocalInstance(); 346} 347 348sp<IOMX> MediaPlayerService::getOMX() { 349 ALOGI("MediaPlayerService::getOMX"); 350 Mutex::Autolock autoLock(mLock); 351 352 if (mOMX.get() == NULL) { 353 mOMX = new OMX; 354 } 355 356 return mOMX; 357} 358 359sp<ICrypto> MediaPlayerService::makeCrypto() { 360 return new Crypto; 361} 362 363sp<IDrm> MediaPlayerService::makeDrm() { 364 return new Drm; 365} 366 367sp<IHDCP> MediaPlayerService::makeHDCP(bool createEncryptionModule) { 368 return new HDCP(createEncryptionModule); 369} 370 371sp<IRemoteDisplay> MediaPlayerService::listenForRemoteDisplay( 372 const String16 &opPackageName, 373 const sp<IRemoteDisplayClient>& client, const String8& iface) { 374 if (!checkPermission("android.permission.CONTROL_WIFI_DISPLAY")) { 375 return NULL; 376 } 377 378 return new RemoteDisplay(opPackageName, client, iface.string()); 379} 380 381status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const 382{ 383 const size_t SIZE = 256; 384 char buffer[SIZE]; 385 String8 result; 386 387 result.append(" AudioOutput\n"); 388 snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", 389 mStreamType, mLeftVolume, mRightVolume); 390 result.append(buffer); 391 snprintf(buffer, 255, " msec per frame(%f), latency (%d)\n", 392 mMsecsPerFrame, (mTrack != 0) ? mTrack->latency() : -1); 393 result.append(buffer); 394 snprintf(buffer, 255, " aux effect id(%d), send level (%f)\n", 395 mAuxEffectId, mSendLevel); 396 result.append(buffer); 397 398 ::write(fd, result.string(), result.size()); 399 if (mTrack != 0) { 400 mTrack->dump(fd, args); 401 } 402 return NO_ERROR; 403} 404 405status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) 406{ 407 const size_t SIZE = 256; 408 char buffer[SIZE]; 409 String8 result; 410 result.append(" Client\n"); 411 snprintf(buffer, 255, " pid(%d), connId(%d), status(%d), looping(%s)\n", 412 mPid, mConnId, mStatus, mLoop?"true": "false"); 413 result.append(buffer); 414 write(fd, result.string(), result.size()); 415 if (mPlayer != NULL) { 416 mPlayer->dump(fd, args); 417 } 418 if (mAudioOutput != 0) { 419 mAudioOutput->dump(fd, args); 420 } 421 write(fd, "\n", 1); 422 return NO_ERROR; 423} 424 425/** 426 * The only arguments this understands right now are -c, -von and -voff, 427 * which are parsed by ALooperRoster::dump() 428 */ 429status_t MediaPlayerService::dump(int fd, const Vector<String16>& args) 430{ 431 const size_t SIZE = 256; 432 char buffer[SIZE]; 433 String8 result; 434 SortedVector< sp<Client> > clients; //to serialise the mutex unlock & client destruction. 435 SortedVector< sp<MediaRecorderClient> > mediaRecorderClients; 436 437 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 438 snprintf(buffer, SIZE, "Permission Denial: " 439 "can't dump MediaPlayerService from pid=%d, uid=%d\n", 440 IPCThreadState::self()->getCallingPid(), 441 IPCThreadState::self()->getCallingUid()); 442 result.append(buffer); 443 } else { 444 Mutex::Autolock lock(mLock); 445 for (int i = 0, n = mClients.size(); i < n; ++i) { 446 sp<Client> c = mClients[i].promote(); 447 if (c != 0) c->dump(fd, args); 448 clients.add(c); 449 } 450 if (mMediaRecorderClients.size() == 0) { 451 result.append(" No media recorder client\n\n"); 452 } else { 453 for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) { 454 sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote(); 455 if (c != 0) { 456 snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n", c->mPid); 457 result.append(buffer); 458 write(fd, result.string(), result.size()); 459 result = "\n"; 460 c->dump(fd, args); 461 mediaRecorderClients.add(c); 462 } 463 } 464 } 465 466 result.append(" Files opened and/or mapped:\n"); 467 snprintf(buffer, SIZE, "/proc/%d/maps", getpid()); 468 FILE *f = fopen(buffer, "r"); 469 if (f) { 470 while (!feof(f)) { 471 fgets(buffer, SIZE, f); 472 if (strstr(buffer, " /storage/") || 473 strstr(buffer, " /system/sounds/") || 474 strstr(buffer, " /data/") || 475 strstr(buffer, " /system/media/")) { 476 result.append(" "); 477 result.append(buffer); 478 } 479 } 480 fclose(f); 481 } else { 482 result.append("couldn't open "); 483 result.append(buffer); 484 result.append("\n"); 485 } 486 487 snprintf(buffer, SIZE, "/proc/%d/fd", getpid()); 488 DIR *d = opendir(buffer); 489 if (d) { 490 struct dirent *ent; 491 while((ent = readdir(d)) != NULL) { 492 if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) { 493 snprintf(buffer, SIZE, "/proc/%d/fd/%s", getpid(), ent->d_name); 494 struct stat s; 495 if (lstat(buffer, &s) == 0) { 496 if ((s.st_mode & S_IFMT) == S_IFLNK) { 497 char linkto[256]; 498 int len = readlink(buffer, linkto, sizeof(linkto)); 499 if(len > 0) { 500 if(len > 255) { 501 linkto[252] = '.'; 502 linkto[253] = '.'; 503 linkto[254] = '.'; 504 linkto[255] = 0; 505 } else { 506 linkto[len] = 0; 507 } 508 if (strstr(linkto, "/storage/") == linkto || 509 strstr(linkto, "/system/sounds/") == linkto || 510 strstr(linkto, "/data/") == linkto || 511 strstr(linkto, "/system/media/") == linkto) { 512 result.append(" "); 513 result.append(buffer); 514 result.append(" -> "); 515 result.append(linkto); 516 result.append("\n"); 517 } 518 } 519 } else { 520 result.append(" unexpected type for "); 521 result.append(buffer); 522 result.append("\n"); 523 } 524 } 525 } 526 } 527 closedir(d); 528 } else { 529 result.append("couldn't open "); 530 result.append(buffer); 531 result.append("\n"); 532 } 533 534 gLooperRoster.dump(fd, args); 535 536 bool dumpMem = false; 537 for (size_t i = 0; i < args.size(); i++) { 538 if (args[i] == String16("-m")) { 539 dumpMem = true; 540 } 541 } 542 if (dumpMem) { 543 dumpMemoryAddresses(fd); 544 } 545 } 546 write(fd, result.string(), result.size()); 547 return NO_ERROR; 548} 549 550void MediaPlayerService::removeClient(wp<Client> client) 551{ 552 Mutex::Autolock lock(mLock); 553 mClients.remove(client); 554} 555 556MediaPlayerService::Client::Client( 557 const sp<MediaPlayerService>& service, pid_t pid, 558 int32_t connId, const sp<IMediaPlayerClient>& client, 559 audio_session_t audioSessionId, uid_t uid) 560{ 561 ALOGV("Client(%d) constructor", connId); 562 mPid = pid; 563 mConnId = connId; 564 mService = service; 565 mClient = client; 566 mLoop = false; 567 mStatus = NO_INIT; 568 mAudioSessionId = audioSessionId; 569 mUID = uid; 570 mRetransmitEndpointValid = false; 571 mAudioAttributes = NULL; 572 573#if CALLBACK_ANTAGONIZER 574 ALOGD("create Antagonizer"); 575 mAntagonizer = new Antagonizer(notify, this); 576#endif 577} 578 579MediaPlayerService::Client::~Client() 580{ 581 ALOGV("Client(%d) destructor pid = %d", mConnId, mPid); 582 mAudioOutput.clear(); 583 wp<Client> client(this); 584 disconnect(); 585 mService->removeClient(client); 586 if (mAudioAttributes != NULL) { 587 free(mAudioAttributes); 588 } 589} 590 591void MediaPlayerService::Client::disconnect() 592{ 593 ALOGV("disconnect(%d) from pid %d", mConnId, mPid); 594 // grab local reference and clear main reference to prevent future 595 // access to object 596 sp<MediaPlayerBase> p; 597 { 598 Mutex::Autolock l(mLock); 599 p = mPlayer; 600 mClient.clear(); 601 } 602 603 mPlayer.clear(); 604 605 // clear the notification to prevent callbacks to dead client 606 // and reset the player. We assume the player will serialize 607 // access to itself if necessary. 608 if (p != 0) { 609 p->setNotifyCallback(0, 0); 610#if CALLBACK_ANTAGONIZER 611 ALOGD("kill Antagonizer"); 612 mAntagonizer->kill(); 613#endif 614 p->reset(); 615 } 616 617 disconnectNativeWindow(); 618 619 IPCThreadState::self()->flushCommands(); 620} 621 622sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) 623{ 624 // determine if we have the right player type 625 sp<MediaPlayerBase> p = mPlayer; 626 if ((p != NULL) && (p->playerType() != playerType)) { 627 ALOGV("delete player"); 628 p.clear(); 629 } 630 if (p == NULL) { 631 p = MediaPlayerFactory::createPlayer(playerType, this, notify, mPid); 632 } 633 634 if (p != NULL) { 635 p->setUID(mUID); 636 } 637 638 return p; 639} 640 641sp<MediaPlayerBase> MediaPlayerService::Client::setDataSource_pre( 642 player_type playerType) 643{ 644 ALOGV("player type = %d", playerType); 645 646 // create the right type of player 647 sp<MediaPlayerBase> p = createPlayer(playerType); 648 if (p == NULL) { 649 return p; 650 } 651 652 if (!p->hardwareOutput()) { 653 Mutex::Autolock l(mLock); 654 mAudioOutput = new AudioOutput(mAudioSessionId, IPCThreadState::self()->getCallingUid(), 655 mPid, mAudioAttributes); 656 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 657 } 658 659 return p; 660} 661 662void MediaPlayerService::Client::setDataSource_post( 663 const sp<MediaPlayerBase>& p, 664 status_t status) 665{ 666 ALOGV(" setDataSource"); 667 mStatus = status; 668 if (mStatus != OK) { 669 ALOGE(" error: %d", mStatus); 670 return; 671 } 672 673 // Set the re-transmission endpoint if one was chosen. 674 if (mRetransmitEndpointValid) { 675 mStatus = p->setRetransmitEndpoint(&mRetransmitEndpoint); 676 if (mStatus != NO_ERROR) { 677 ALOGE("setRetransmitEndpoint error: %d", mStatus); 678 } 679 } 680 681 if (mStatus == OK) { 682 mPlayer = p; 683 } 684} 685 686status_t MediaPlayerService::Client::setDataSource( 687 const sp<IMediaHTTPService> &httpService, 688 const char *url, 689 const KeyedVector<String8, String8> *headers) 690{ 691 ALOGV("setDataSource(%s)", url); 692 if (url == NULL) 693 return UNKNOWN_ERROR; 694 695 if ((strncmp(url, "http://", 7) == 0) || 696 (strncmp(url, "https://", 8) == 0) || 697 (strncmp(url, "rtsp://", 7) == 0)) { 698 if (!checkPermission("android.permission.INTERNET")) { 699 return PERMISSION_DENIED; 700 } 701 } 702 703 if (strncmp(url, "content://", 10) == 0) { 704 // get a filedescriptor for the content Uri and 705 // pass it to the setDataSource(fd) method 706 707 String16 url16(url); 708 int fd = android::openContentProviderFile(url16); 709 if (fd < 0) 710 { 711 ALOGE("Couldn't open fd for %s", url); 712 return UNKNOWN_ERROR; 713 } 714 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 715 close(fd); 716 return mStatus; 717 } else { 718 player_type playerType = MediaPlayerFactory::getPlayerType(this, url); 719 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 720 if (p == NULL) { 721 return NO_INIT; 722 } 723 724 setDataSource_post(p, p->setDataSource(httpService, url, headers)); 725 return mStatus; 726 } 727} 728 729status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 730{ 731 ALOGV("setDataSource fd=%d (%s), offset=%lld, length=%lld", 732 fd, nameForFd(fd).c_str(), (long long) offset, (long long) length); 733 struct stat sb; 734 int ret = fstat(fd, &sb); 735 if (ret != 0) { 736 ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 737 return UNKNOWN_ERROR; 738 } 739 740 ALOGV("st_dev = %llu", static_cast<uint64_t>(sb.st_dev)); 741 ALOGV("st_mode = %u", sb.st_mode); 742 ALOGV("st_uid = %lu", static_cast<unsigned long>(sb.st_uid)); 743 ALOGV("st_gid = %lu", static_cast<unsigned long>(sb.st_gid)); 744 ALOGV("st_size = %llu", sb.st_size); 745 746 if (offset >= sb.st_size) { 747 ALOGE("offset error"); 748 return UNKNOWN_ERROR; 749 } 750 if (offset + length > sb.st_size) { 751 length = sb.st_size - offset; 752 ALOGV("calculated length = %lld", length); 753 } 754 755 player_type playerType = MediaPlayerFactory::getPlayerType(this, 756 fd, 757 offset, 758 length); 759 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 760 if (p == NULL) { 761 return NO_INIT; 762 } 763 764 // now set data source 765 setDataSource_post(p, p->setDataSource(fd, offset, length)); 766 return mStatus; 767} 768 769status_t MediaPlayerService::Client::setDataSource( 770 const sp<IStreamSource> &source) { 771 // create the right type of player 772 player_type playerType = MediaPlayerFactory::getPlayerType(this, source); 773 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 774 if (p == NULL) { 775 return NO_INIT; 776 } 777 778 // now set data source 779 setDataSource_post(p, p->setDataSource(source)); 780 return mStatus; 781} 782 783status_t MediaPlayerService::Client::setDataSource( 784 const sp<IDataSource> &source) { 785 sp<DataSource> dataSource = DataSource::CreateFromIDataSource(source); 786 player_type playerType = MediaPlayerFactory::getPlayerType(this, dataSource); 787 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 788 if (p == NULL) { 789 return NO_INIT; 790 } 791 // now set data source 792 setDataSource_post(p, p->setDataSource(dataSource)); 793 return mStatus; 794} 795 796void MediaPlayerService::Client::disconnectNativeWindow() { 797 if (mConnectedWindow != NULL) { 798 status_t err = native_window_api_disconnect(mConnectedWindow.get(), 799 NATIVE_WINDOW_API_MEDIA); 800 801 if (err != OK) { 802 ALOGW("native_window_api_disconnect returned an error: %s (%d)", 803 strerror(-err), err); 804 } 805 } 806 mConnectedWindow.clear(); 807} 808 809status_t MediaPlayerService::Client::setVideoSurfaceTexture( 810 const sp<IGraphicBufferProducer>& bufferProducer) 811{ 812 ALOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, bufferProducer.get()); 813 sp<MediaPlayerBase> p = getPlayer(); 814 if (p == 0) return UNKNOWN_ERROR; 815 816 sp<IBinder> binder(IInterface::asBinder(bufferProducer)); 817 if (mConnectedWindowBinder == binder) { 818 return OK; 819 } 820 821 sp<ANativeWindow> anw; 822 if (bufferProducer != NULL) { 823 anw = new Surface(bufferProducer, true /* controlledByApp */); 824 status_t err = native_window_api_connect(anw.get(), 825 NATIVE_WINDOW_API_MEDIA); 826 827 if (err != OK) { 828 ALOGE("setVideoSurfaceTexture failed: %d", err); 829 // Note that we must do the reset before disconnecting from the ANW. 830 // Otherwise queue/dequeue calls could be made on the disconnected 831 // ANW, which may result in errors. 832 reset(); 833 834 disconnectNativeWindow(); 835 836 return err; 837 } 838 } 839 840 // Note that we must set the player's new GraphicBufferProducer before 841 // disconnecting the old one. Otherwise queue/dequeue calls could be made 842 // on the disconnected ANW, which may result in errors. 843 status_t err = p->setVideoSurfaceTexture(bufferProducer); 844 845 disconnectNativeWindow(); 846 847 mConnectedWindow = anw; 848 849 if (err == OK) { 850 mConnectedWindowBinder = binder; 851 } else { 852 disconnectNativeWindow(); 853 } 854 855 return err; 856} 857 858status_t MediaPlayerService::Client::invoke(const Parcel& request, 859 Parcel *reply) 860{ 861 sp<MediaPlayerBase> p = getPlayer(); 862 if (p == NULL) return UNKNOWN_ERROR; 863 return p->invoke(request, reply); 864} 865 866// This call doesn't need to access the native player. 867status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 868{ 869 status_t status; 870 media::Metadata::Filter allow, drop; 871 872 if (unmarshallFilter(filter, &allow, &status) && 873 unmarshallFilter(filter, &drop, &status)) { 874 Mutex::Autolock lock(mLock); 875 876 mMetadataAllow = allow; 877 mMetadataDrop = drop; 878 } 879 return status; 880} 881 882status_t MediaPlayerService::Client::getMetadata( 883 bool update_only, bool /*apply_filter*/, Parcel *reply) 884{ 885 sp<MediaPlayerBase> player = getPlayer(); 886 if (player == 0) return UNKNOWN_ERROR; 887 888 status_t status; 889 // Placeholder for the return code, updated by the caller. 890 reply->writeInt32(-1); 891 892 media::Metadata::Filter ids; 893 894 // We don't block notifications while we fetch the data. We clear 895 // mMetadataUpdated first so we don't lose notifications happening 896 // during the rest of this call. 897 { 898 Mutex::Autolock lock(mLock); 899 if (update_only) { 900 ids = mMetadataUpdated; 901 } 902 mMetadataUpdated.clear(); 903 } 904 905 media::Metadata metadata(reply); 906 907 metadata.appendHeader(); 908 status = player->getMetadata(ids, reply); 909 910 if (status != OK) { 911 metadata.resetParcel(); 912 ALOGE("getMetadata failed %d", status); 913 return status; 914 } 915 916 // FIXME: Implement filtering on the result. Not critical since 917 // filtering takes place on the update notifications already. This 918 // would be when all the metadata are fetch and a filter is set. 919 920 // Everything is fine, update the metadata length. 921 metadata.updateLength(); 922 return OK; 923} 924 925status_t MediaPlayerService::Client::prepareAsync() 926{ 927 ALOGV("[%d] prepareAsync", mConnId); 928 sp<MediaPlayerBase> p = getPlayer(); 929 if (p == 0) return UNKNOWN_ERROR; 930 status_t ret = p->prepareAsync(); 931#if CALLBACK_ANTAGONIZER 932 ALOGD("start Antagonizer"); 933 if (ret == NO_ERROR) mAntagonizer->start(); 934#endif 935 return ret; 936} 937 938status_t MediaPlayerService::Client::start() 939{ 940 ALOGV("[%d] start", mConnId); 941 sp<MediaPlayerBase> p = getPlayer(); 942 if (p == 0) return UNKNOWN_ERROR; 943 p->setLooping(mLoop); 944 return p->start(); 945} 946 947status_t MediaPlayerService::Client::stop() 948{ 949 ALOGV("[%d] stop", mConnId); 950 sp<MediaPlayerBase> p = getPlayer(); 951 if (p == 0) return UNKNOWN_ERROR; 952 return p->stop(); 953} 954 955status_t MediaPlayerService::Client::pause() 956{ 957 ALOGV("[%d] pause", mConnId); 958 sp<MediaPlayerBase> p = getPlayer(); 959 if (p == 0) return UNKNOWN_ERROR; 960 return p->pause(); 961} 962 963status_t MediaPlayerService::Client::isPlaying(bool* state) 964{ 965 *state = false; 966 sp<MediaPlayerBase> p = getPlayer(); 967 if (p == 0) return UNKNOWN_ERROR; 968 *state = p->isPlaying(); 969 ALOGV("[%d] isPlaying: %d", mConnId, *state); 970 return NO_ERROR; 971} 972 973status_t MediaPlayerService::Client::setPlaybackSettings(const AudioPlaybackRate& rate) 974{ 975 ALOGV("[%d] setPlaybackSettings(%f, %f, %d, %d)", 976 mConnId, rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode); 977 sp<MediaPlayerBase> p = getPlayer(); 978 if (p == 0) return UNKNOWN_ERROR; 979 return p->setPlaybackSettings(rate); 980} 981 982status_t MediaPlayerService::Client::getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */) 983{ 984 sp<MediaPlayerBase> p = getPlayer(); 985 if (p == 0) return UNKNOWN_ERROR; 986 status_t ret = p->getPlaybackSettings(rate); 987 if (ret == NO_ERROR) { 988 ALOGV("[%d] getPlaybackSettings(%f, %f, %d, %d)", 989 mConnId, rate->mSpeed, rate->mPitch, rate->mFallbackMode, rate->mStretchMode); 990 } else { 991 ALOGV("[%d] getPlaybackSettings returned %d", mConnId, ret); 992 } 993 return ret; 994} 995 996status_t MediaPlayerService::Client::setSyncSettings( 997 const AVSyncSettings& sync, float videoFpsHint) 998{ 999 ALOGV("[%d] setSyncSettings(%u, %u, %f, %f)", 1000 mConnId, sync.mSource, sync.mAudioAdjustMode, sync.mTolerance, videoFpsHint); 1001 sp<MediaPlayerBase> p = getPlayer(); 1002 if (p == 0) return UNKNOWN_ERROR; 1003 return p->setSyncSettings(sync, videoFpsHint); 1004} 1005 1006status_t MediaPlayerService::Client::getSyncSettings( 1007 AVSyncSettings* sync /* nonnull */, float* videoFps /* nonnull */) 1008{ 1009 sp<MediaPlayerBase> p = getPlayer(); 1010 if (p == 0) return UNKNOWN_ERROR; 1011 status_t ret = p->getSyncSettings(sync, videoFps); 1012 if (ret == NO_ERROR) { 1013 ALOGV("[%d] getSyncSettings(%u, %u, %f, %f)", 1014 mConnId, sync->mSource, sync->mAudioAdjustMode, sync->mTolerance, *videoFps); 1015 } else { 1016 ALOGV("[%d] getSyncSettings returned %d", mConnId, ret); 1017 } 1018 return ret; 1019} 1020 1021status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 1022{ 1023 ALOGV("getCurrentPosition"); 1024 sp<MediaPlayerBase> p = getPlayer(); 1025 if (p == 0) return UNKNOWN_ERROR; 1026 status_t ret = p->getCurrentPosition(msec); 1027 if (ret == NO_ERROR) { 1028 ALOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 1029 } else { 1030 ALOGE("getCurrentPosition returned %d", ret); 1031 } 1032 return ret; 1033} 1034 1035status_t MediaPlayerService::Client::getDuration(int *msec) 1036{ 1037 ALOGV("getDuration"); 1038 sp<MediaPlayerBase> p = getPlayer(); 1039 if (p == 0) return UNKNOWN_ERROR; 1040 status_t ret = p->getDuration(msec); 1041 if (ret == NO_ERROR) { 1042 ALOGV("[%d] getDuration = %d", mConnId, *msec); 1043 } else { 1044 ALOGE("getDuration returned %d", ret); 1045 } 1046 return ret; 1047} 1048 1049status_t MediaPlayerService::Client::setNextPlayer(const sp<IMediaPlayer>& player) { 1050 ALOGV("setNextPlayer"); 1051 Mutex::Autolock l(mLock); 1052 sp<Client> c = static_cast<Client*>(player.get()); 1053 mNextClient = c; 1054 1055 if (c != NULL) { 1056 if (mAudioOutput != NULL) { 1057 mAudioOutput->setNextOutput(c->mAudioOutput); 1058 } else if ((mPlayer != NULL) && !mPlayer->hardwareOutput()) { 1059 ALOGE("no current audio output"); 1060 } 1061 1062 if ((mPlayer != NULL) && (mNextClient->getPlayer() != NULL)) { 1063 mPlayer->setNextPlayer(mNextClient->getPlayer()); 1064 } 1065 } 1066 1067 return OK; 1068} 1069 1070status_t MediaPlayerService::Client::seekTo(int msec) 1071{ 1072 ALOGV("[%d] seekTo(%d)", mConnId, msec); 1073 sp<MediaPlayerBase> p = getPlayer(); 1074 if (p == 0) return UNKNOWN_ERROR; 1075 return p->seekTo(msec); 1076} 1077 1078status_t MediaPlayerService::Client::reset() 1079{ 1080 ALOGV("[%d] reset", mConnId); 1081 mRetransmitEndpointValid = false; 1082 sp<MediaPlayerBase> p = getPlayer(); 1083 if (p == 0) return UNKNOWN_ERROR; 1084 return p->reset(); 1085} 1086 1087status_t MediaPlayerService::Client::setAudioStreamType(audio_stream_type_t type) 1088{ 1089 ALOGV("[%d] setAudioStreamType(%d)", mConnId, type); 1090 // TODO: for hardware output, call player instead 1091 Mutex::Autolock l(mLock); 1092 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 1093 return NO_ERROR; 1094} 1095 1096status_t MediaPlayerService::Client::setAudioAttributes_l(const Parcel &parcel) 1097{ 1098 if (mAudioAttributes != NULL) { free(mAudioAttributes); } 1099 mAudioAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1100 if (mAudioAttributes == NULL) { 1101 return NO_MEMORY; 1102 } 1103 unmarshallAudioAttributes(parcel, mAudioAttributes); 1104 1105 ALOGV("setAudioAttributes_l() usage=%d content=%d flags=0x%x tags=%s", 1106 mAudioAttributes->usage, mAudioAttributes->content_type, mAudioAttributes->flags, 1107 mAudioAttributes->tags); 1108 1109 if (mAudioOutput != 0) { 1110 mAudioOutput->setAudioAttributes(mAudioAttributes); 1111 } 1112 return NO_ERROR; 1113} 1114 1115status_t MediaPlayerService::Client::setLooping(int loop) 1116{ 1117 ALOGV("[%d] setLooping(%d)", mConnId, loop); 1118 mLoop = loop; 1119 sp<MediaPlayerBase> p = getPlayer(); 1120 if (p != 0) return p->setLooping(loop); 1121 return NO_ERROR; 1122} 1123 1124status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1125{ 1126 ALOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1127 1128 // for hardware output, call player instead 1129 sp<MediaPlayerBase> p = getPlayer(); 1130 { 1131 Mutex::Autolock l(mLock); 1132 if (p != 0 && p->hardwareOutput()) { 1133 MediaPlayerHWInterface* hwp = 1134 reinterpret_cast<MediaPlayerHWInterface*>(p.get()); 1135 return hwp->setVolume(leftVolume, rightVolume); 1136 } else { 1137 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1138 return NO_ERROR; 1139 } 1140 } 1141 1142 return NO_ERROR; 1143} 1144 1145status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level) 1146{ 1147 ALOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level); 1148 Mutex::Autolock l(mLock); 1149 if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level); 1150 return NO_ERROR; 1151} 1152 1153status_t MediaPlayerService::Client::attachAuxEffect(int effectId) 1154{ 1155 ALOGV("[%d] attachAuxEffect(%d)", mConnId, effectId); 1156 Mutex::Autolock l(mLock); 1157 if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId); 1158 return NO_ERROR; 1159} 1160 1161status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) { 1162 ALOGV("[%d] setParameter(%d)", mConnId, key); 1163 switch (key) { 1164 case KEY_PARAMETER_AUDIO_ATTRIBUTES: 1165 { 1166 Mutex::Autolock l(mLock); 1167 return setAudioAttributes_l(request); 1168 } 1169 default: 1170 sp<MediaPlayerBase> p = getPlayer(); 1171 if (p == 0) { return UNKNOWN_ERROR; } 1172 return p->setParameter(key, request); 1173 } 1174} 1175 1176status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) { 1177 ALOGV("[%d] getParameter(%d)", mConnId, key); 1178 sp<MediaPlayerBase> p = getPlayer(); 1179 if (p == 0) return UNKNOWN_ERROR; 1180 return p->getParameter(key, reply); 1181} 1182 1183status_t MediaPlayerService::Client::setRetransmitEndpoint( 1184 const struct sockaddr_in* endpoint) { 1185 1186 if (NULL != endpoint) { 1187 uint32_t a = ntohl(endpoint->sin_addr.s_addr); 1188 uint16_t p = ntohs(endpoint->sin_port); 1189 ALOGV("[%d] setRetransmitEndpoint(%u.%u.%u.%u:%hu)", mConnId, 1190 (a >> 24), (a >> 16) & 0xFF, (a >> 8) & 0xFF, (a & 0xFF), p); 1191 } else { 1192 ALOGV("[%d] setRetransmitEndpoint = <none>", mConnId); 1193 } 1194 1195 sp<MediaPlayerBase> p = getPlayer(); 1196 1197 // Right now, the only valid time to set a retransmit endpoint is before 1198 // player selection has been made (since the presence or absence of a 1199 // retransmit endpoint is going to determine which player is selected during 1200 // setDataSource). 1201 if (p != 0) return INVALID_OPERATION; 1202 1203 if (NULL != endpoint) { 1204 mRetransmitEndpoint = *endpoint; 1205 mRetransmitEndpointValid = true; 1206 } else { 1207 mRetransmitEndpointValid = false; 1208 } 1209 1210 return NO_ERROR; 1211} 1212 1213status_t MediaPlayerService::Client::getRetransmitEndpoint( 1214 struct sockaddr_in* endpoint) 1215{ 1216 if (NULL == endpoint) 1217 return BAD_VALUE; 1218 1219 sp<MediaPlayerBase> p = getPlayer(); 1220 1221 if (p != NULL) 1222 return p->getRetransmitEndpoint(endpoint); 1223 1224 if (!mRetransmitEndpointValid) 1225 return NO_INIT; 1226 1227 *endpoint = mRetransmitEndpoint; 1228 1229 return NO_ERROR; 1230} 1231 1232void MediaPlayerService::Client::notify( 1233 void* cookie, int msg, int ext1, int ext2, const Parcel *obj) 1234{ 1235 Client* client = static_cast<Client*>(cookie); 1236 if (client == NULL) { 1237 return; 1238 } 1239 1240 sp<IMediaPlayerClient> c; 1241 { 1242 Mutex::Autolock l(client->mLock); 1243 c = client->mClient; 1244 if (msg == MEDIA_PLAYBACK_COMPLETE && client->mNextClient != NULL) { 1245 if (client->mAudioOutput != NULL) 1246 client->mAudioOutput->switchToNextOutput(); 1247 client->mNextClient->start(); 1248 if (client->mNextClient->mClient != NULL) { 1249 client->mNextClient->mClient->notify( 1250 MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj); 1251 } 1252 } 1253 } 1254 1255 if (MEDIA_INFO == msg && 1256 MEDIA_INFO_METADATA_UPDATE == ext1) { 1257 const media::Metadata::Type metadata_type = ext2; 1258 1259 if(client->shouldDropMetadata(metadata_type)) { 1260 return; 1261 } 1262 1263 // Update the list of metadata that have changed. getMetadata 1264 // also access mMetadataUpdated and clears it. 1265 client->addNewMetadataUpdate(metadata_type); 1266 } 1267 1268 if (c != NULL) { 1269 ALOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1270 c->notify(msg, ext1, ext2, obj); 1271 } 1272} 1273 1274 1275bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1276{ 1277 Mutex::Autolock lock(mLock); 1278 1279 if (findMetadata(mMetadataDrop, code)) { 1280 return true; 1281 } 1282 1283 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1284 return false; 1285 } else { 1286 return true; 1287 } 1288} 1289 1290 1291void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1292 Mutex::Autolock lock(mLock); 1293 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1294 mMetadataUpdated.add(metadata_type); 1295 } 1296} 1297 1298#if CALLBACK_ANTAGONIZER 1299const int Antagonizer::interval = 10000; // 10 msecs 1300 1301Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1302 mExit(false), mActive(false), mClient(client), mCb(cb) 1303{ 1304 createThread(callbackThread, this); 1305} 1306 1307void Antagonizer::kill() 1308{ 1309 Mutex::Autolock _l(mLock); 1310 mActive = false; 1311 mExit = true; 1312 mCondition.wait(mLock); 1313} 1314 1315int Antagonizer::callbackThread(void* user) 1316{ 1317 ALOGD("Antagonizer started"); 1318 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1319 while (!p->mExit) { 1320 if (p->mActive) { 1321 ALOGV("send event"); 1322 p->mCb(p->mClient, 0, 0, 0); 1323 } 1324 usleep(interval); 1325 } 1326 Mutex::Autolock _l(p->mLock); 1327 p->mCondition.signal(); 1328 ALOGD("Antagonizer stopped"); 1329 return 0; 1330} 1331#endif 1332 1333#undef LOG_TAG 1334#define LOG_TAG "AudioSink" 1335MediaPlayerService::AudioOutput::AudioOutput(audio_session_t sessionId, int uid, int pid, 1336 const audio_attributes_t* attr) 1337 : mCallback(NULL), 1338 mCallbackCookie(NULL), 1339 mCallbackData(NULL), 1340 mStreamType(AUDIO_STREAM_MUSIC), 1341 mLeftVolume(1.0), 1342 mRightVolume(1.0), 1343 mPlaybackRate(AUDIO_PLAYBACK_RATE_DEFAULT), 1344 mSampleRateHz(0), 1345 mMsecsPerFrame(0), 1346 mFrameSize(0), 1347 mSessionId(sessionId), 1348 mUid(uid), 1349 mPid(pid), 1350 mSendLevel(0.0), 1351 mAuxEffectId(0), 1352 mFlags(AUDIO_OUTPUT_FLAG_NONE) 1353{ 1354 ALOGV("AudioOutput(%d)", sessionId); 1355 if (attr != NULL) { 1356 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1357 if (mAttributes != NULL) { 1358 memcpy(mAttributes, attr, sizeof(audio_attributes_t)); 1359 mStreamType = audio_attributes_to_stream_type(attr); 1360 } 1361 } else { 1362 mAttributes = NULL; 1363 } 1364 1365 setMinBufferCount(); 1366} 1367 1368MediaPlayerService::AudioOutput::~AudioOutput() 1369{ 1370 close(); 1371 free(mAttributes); 1372 delete mCallbackData; 1373} 1374 1375//static 1376void MediaPlayerService::AudioOutput::setMinBufferCount() 1377{ 1378 char value[PROPERTY_VALUE_MAX]; 1379 if (property_get("ro.kernel.qemu", value, 0)) { 1380 mIsOnEmulator = true; 1381 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1382 } 1383} 1384 1385// static 1386bool MediaPlayerService::AudioOutput::isOnEmulator() 1387{ 1388 setMinBufferCount(); // benign race wrt other threads 1389 return mIsOnEmulator; 1390} 1391 1392// static 1393int MediaPlayerService::AudioOutput::getMinBufferCount() 1394{ 1395 setMinBufferCount(); // benign race wrt other threads 1396 return mMinBufferCount; 1397} 1398 1399ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1400{ 1401 Mutex::Autolock lock(mLock); 1402 if (mTrack == 0) return NO_INIT; 1403 return mTrack->frameCount() * mFrameSize; 1404} 1405 1406ssize_t MediaPlayerService::AudioOutput::frameCount() const 1407{ 1408 Mutex::Autolock lock(mLock); 1409 if (mTrack == 0) return NO_INIT; 1410 return mTrack->frameCount(); 1411} 1412 1413ssize_t MediaPlayerService::AudioOutput::channelCount() const 1414{ 1415 Mutex::Autolock lock(mLock); 1416 if (mTrack == 0) return NO_INIT; 1417 return mTrack->channelCount(); 1418} 1419 1420ssize_t MediaPlayerService::AudioOutput::frameSize() const 1421{ 1422 Mutex::Autolock lock(mLock); 1423 if (mTrack == 0) return NO_INIT; 1424 return mFrameSize; 1425} 1426 1427uint32_t MediaPlayerService::AudioOutput::latency () const 1428{ 1429 Mutex::Autolock lock(mLock); 1430 if (mTrack == 0) return 0; 1431 return mTrack->latency(); 1432} 1433 1434float MediaPlayerService::AudioOutput::msecsPerFrame() const 1435{ 1436 Mutex::Autolock lock(mLock); 1437 return mMsecsPerFrame; 1438} 1439 1440status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) const 1441{ 1442 Mutex::Autolock lock(mLock); 1443 if (mTrack == 0) return NO_INIT; 1444 return mTrack->getPosition(position); 1445} 1446 1447status_t MediaPlayerService::AudioOutput::getTimestamp(AudioTimestamp &ts) const 1448{ 1449 Mutex::Autolock lock(mLock); 1450 if (mTrack == 0) return NO_INIT; 1451 return mTrack->getTimestamp(ts); 1452} 1453 1454// TODO: Remove unnecessary calls to getPlayedOutDurationUs() 1455// as it acquires locks and may query the audio driver. 1456// 1457// Some calls could conceivably retrieve extrapolated data instead of 1458// accessing getTimestamp() or getPosition() every time a data buffer with 1459// a media time is received. 1460// 1461// Calculate duration of played samples if played at normal rate (i.e., 1.0). 1462int64_t MediaPlayerService::AudioOutput::getPlayedOutDurationUs(int64_t nowUs) const 1463{ 1464 Mutex::Autolock lock(mLock); 1465 if (mTrack == 0 || mSampleRateHz == 0) { 1466 return 0; 1467 } 1468 1469 uint32_t numFramesPlayed; 1470 int64_t numFramesPlayedAt; 1471 AudioTimestamp ts; 1472 static const int64_t kStaleTimestamp100ms = 100000; 1473 1474 status_t res = mTrack->getTimestamp(ts); 1475 if (res == OK) { // case 1: mixing audio tracks and offloaded tracks. 1476 numFramesPlayed = ts.mPosition; 1477 numFramesPlayedAt = ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000; 1478 const int64_t timestampAge = nowUs - numFramesPlayedAt; 1479 if (timestampAge > kStaleTimestamp100ms) { 1480 // This is an audio FIXME. 1481 // getTimestamp returns a timestamp which may come from audio mixing threads. 1482 // After pausing, the MixerThread may go idle, thus the mTime estimate may 1483 // become stale. Assuming that the MixerThread runs 20ms, with FastMixer at 5ms, 1484 // the max latency should be about 25ms with an average around 12ms (to be verified). 1485 // For safety we use 100ms. 1486 ALOGV("getTimestamp: returned stale timestamp nowUs(%lld) numFramesPlayedAt(%lld)", 1487 (long long)nowUs, (long long)numFramesPlayedAt); 1488 numFramesPlayedAt = nowUs - kStaleTimestamp100ms; 1489 } 1490 //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAt); 1491 } else if (res == WOULD_BLOCK) { // case 2: transitory state on start of a new track 1492 numFramesPlayed = 0; 1493 numFramesPlayedAt = nowUs; 1494 //ALOGD("getTimestamp: WOULD_BLOCK %d %lld", 1495 // numFramesPlayed, (long long)numFramesPlayedAt); 1496 } else { // case 3: transitory at new track or audio fast tracks. 1497 res = mTrack->getPosition(&numFramesPlayed); 1498 CHECK_EQ(res, (status_t)OK); 1499 numFramesPlayedAt = nowUs; 1500 numFramesPlayedAt += 1000LL * mTrack->latency() / 2; /* XXX */ 1501 //ALOGD("getPosition: %u %lld", numFramesPlayed, (long long)numFramesPlayedAt); 1502 } 1503 1504 // CHECK_EQ(numFramesPlayed & (1 << 31), 0); // can't be negative until 12.4 hrs, test 1505 // TODO: remove the (int32_t) casting below as it may overflow at 12.4 hours. 1506 int64_t durationUs = (int64_t)((int32_t)numFramesPlayed * 1000000LL / mSampleRateHz) 1507 + nowUs - numFramesPlayedAt; 1508 if (durationUs < 0) { 1509 // Occurs when numFramesPlayed position is very small and the following: 1510 // (1) In case 1, the time nowUs is computed before getTimestamp() is called and 1511 // numFramesPlayedAt is greater than nowUs by time more than numFramesPlayed. 1512 // (2) In case 3, using getPosition and adding mAudioSink->latency() to 1513 // numFramesPlayedAt, by a time amount greater than numFramesPlayed. 1514 // 1515 // Both of these are transitory conditions. 1516 ALOGV("getPlayedOutDurationUs: negative duration %lld set to zero", (long long)durationUs); 1517 durationUs = 0; 1518 } 1519 ALOGV("getPlayedOutDurationUs(%lld) nowUs(%lld) frames(%u) framesAt(%lld)", 1520 (long long)durationUs, (long long)nowUs, numFramesPlayed, (long long)numFramesPlayedAt); 1521 return durationUs; 1522} 1523 1524status_t MediaPlayerService::AudioOutput::getFramesWritten(uint32_t *frameswritten) const 1525{ 1526 Mutex::Autolock lock(mLock); 1527 if (mTrack == 0) return NO_INIT; 1528 ExtendedTimestamp ets; 1529 status_t status = mTrack->getTimestamp(&ets); 1530 if (status == OK || status == WOULD_BLOCK) { 1531 *frameswritten = (uint32_t)ets.mPosition[ExtendedTimestamp::LOCATION_CLIENT]; 1532 } 1533 return status; 1534} 1535 1536status_t MediaPlayerService::AudioOutput::setParameters(const String8& keyValuePairs) 1537{ 1538 Mutex::Autolock lock(mLock); 1539 if (mTrack == 0) return NO_INIT; 1540 return mTrack->setParameters(keyValuePairs); 1541} 1542 1543String8 MediaPlayerService::AudioOutput::getParameters(const String8& keys) 1544{ 1545 Mutex::Autolock lock(mLock); 1546 if (mTrack == 0) return String8::empty(); 1547 return mTrack->getParameters(keys); 1548} 1549 1550void MediaPlayerService::AudioOutput::setAudioAttributes(const audio_attributes_t * attributes) { 1551 Mutex::Autolock lock(mLock); 1552 if (attributes == NULL) { 1553 free(mAttributes); 1554 mAttributes = NULL; 1555 } else { 1556 if (mAttributes == NULL) { 1557 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1558 } 1559 memcpy(mAttributes, attributes, sizeof(audio_attributes_t)); 1560 mStreamType = audio_attributes_to_stream_type(attributes); 1561 } 1562} 1563 1564void MediaPlayerService::AudioOutput::setAudioStreamType(audio_stream_type_t streamType) 1565{ 1566 Mutex::Autolock lock(mLock); 1567 // do not allow direct stream type modification if attributes have been set 1568 if (mAttributes == NULL) { 1569 mStreamType = streamType; 1570 } 1571} 1572 1573void MediaPlayerService::AudioOutput::deleteRecycledTrack_l() 1574{ 1575 ALOGV("deleteRecycledTrack_l"); 1576 if (mRecycledTrack != 0) { 1577 1578 if (mCallbackData != NULL) { 1579 mCallbackData->setOutput(NULL); 1580 mCallbackData->endTrackSwitch(); 1581 } 1582 1583 if ((mRecycledTrack->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) { 1584 int32_t msec = 0; 1585 if (!mRecycledTrack->stopped()) { // check if active 1586 (void)mRecycledTrack->pendingDuration(&msec); 1587 } 1588 mRecycledTrack->stop(); // ensure full data drain 1589 ALOGD("deleting recycled track, waiting for data drain (%d msec)", msec); 1590 if (msec > 0) { 1591 static const int32_t WAIT_LIMIT_MS = 3000; 1592 if (msec > WAIT_LIMIT_MS) { 1593 msec = WAIT_LIMIT_MS; 1594 } 1595 usleep(msec * 1000LL); 1596 } 1597 } 1598 // An offloaded track isn't flushed because the STREAM_END is reported 1599 // slightly prematurely to allow time for the gapless track switch 1600 // but this means that if we decide not to recycle the track there 1601 // could be a small amount of residual data still playing. We leave 1602 // AudioFlinger to drain the track. 1603 1604 mRecycledTrack.clear(); 1605 close_l(); 1606 delete mCallbackData; 1607 mCallbackData = NULL; 1608 } 1609} 1610 1611void MediaPlayerService::AudioOutput::close_l() 1612{ 1613 mTrack.clear(); 1614} 1615 1616status_t MediaPlayerService::AudioOutput::open( 1617 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 1618 audio_format_t format, int bufferCount, 1619 AudioCallback cb, void *cookie, 1620 audio_output_flags_t flags, 1621 const audio_offload_info_t *offloadInfo, 1622 bool doNotReconnect, 1623 uint32_t suggestedFrameCount) 1624{ 1625 ALOGV("open(%u, %d, 0x%x, 0x%x, %d, %d 0x%x)", sampleRate, channelCount, channelMask, 1626 format, bufferCount, mSessionId, flags); 1627 1628 // offloading is only supported in callback mode for now. 1629 // offloadInfo must be present if offload flag is set 1630 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) && 1631 ((cb == NULL) || (offloadInfo == NULL))) { 1632 return BAD_VALUE; 1633 } 1634 1635 // compute frame count for the AudioTrack internal buffer 1636 size_t frameCount; 1637 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1638 frameCount = 0; // AudioTrack will get frame count from AudioFlinger 1639 } else { 1640 // try to estimate the buffer processing fetch size from AudioFlinger. 1641 // framesPerBuffer is approximate and generally correct, except when it's not :-). 1642 uint32_t afSampleRate; 1643 size_t afFrameCount; 1644 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1645 return NO_INIT; 1646 } 1647 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1648 return NO_INIT; 1649 } 1650 const size_t framesPerBuffer = 1651 (unsigned long long)sampleRate * afFrameCount / afSampleRate; 1652 1653 if (bufferCount == 0) { 1654 // use suggestedFrameCount 1655 bufferCount = (suggestedFrameCount + framesPerBuffer - 1) / framesPerBuffer; 1656 } 1657 // Check argument bufferCount against the mininum buffer count 1658 if (bufferCount != 0 && bufferCount < mMinBufferCount) { 1659 ALOGV("bufferCount (%d) increased to %d", bufferCount, mMinBufferCount); 1660 bufferCount = mMinBufferCount; 1661 } 1662 // if frameCount is 0, then AudioTrack will get frame count from AudioFlinger 1663 // which will be the minimum size permitted. 1664 frameCount = bufferCount * framesPerBuffer; 1665 } 1666 1667 if (channelMask == CHANNEL_MASK_USE_CHANNEL_ORDER) { 1668 channelMask = audio_channel_out_mask_from_count(channelCount); 1669 if (0 == channelMask) { 1670 ALOGE("open() error, can\'t derive mask for %d audio channels", channelCount); 1671 return NO_INIT; 1672 } 1673 } 1674 1675 Mutex::Autolock lock(mLock); 1676 mCallback = cb; 1677 mCallbackCookie = cookie; 1678 1679 // Check whether we can recycle the track 1680 bool reuse = false; 1681 bool bothOffloaded = false; 1682 1683 if (mRecycledTrack != 0) { 1684 // check whether we are switching between two offloaded tracks 1685 bothOffloaded = (flags & mRecycledTrack->getFlags() 1686 & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; 1687 1688 // check if the existing track can be reused as-is, or if a new track needs to be created. 1689 reuse = true; 1690 1691 if ((mCallbackData == NULL && mCallback != NULL) || 1692 (mCallbackData != NULL && mCallback == NULL)) { 1693 // recycled track uses callbacks but the caller wants to use writes, or vice versa 1694 ALOGV("can't chain callback and write"); 1695 reuse = false; 1696 } else if ((mRecycledTrack->getSampleRate() != sampleRate) || 1697 (mRecycledTrack->channelCount() != (uint32_t)channelCount) ) { 1698 ALOGV("samplerate, channelcount differ: %u/%u Hz, %u/%d ch", 1699 mRecycledTrack->getSampleRate(), sampleRate, 1700 mRecycledTrack->channelCount(), channelCount); 1701 reuse = false; 1702 } else if (flags != mFlags) { 1703 ALOGV("output flags differ %08x/%08x", flags, mFlags); 1704 reuse = false; 1705 } else if (mRecycledTrack->format() != format) { 1706 reuse = false; 1707 } 1708 } else { 1709 ALOGV("no track available to recycle"); 1710 } 1711 1712 ALOGV_IF(bothOffloaded, "both tracks offloaded"); 1713 1714 // If we can't recycle and both tracks are offloaded 1715 // we must close the previous output before opening a new one 1716 if (bothOffloaded && !reuse) { 1717 ALOGV("both offloaded and not recycling"); 1718 deleteRecycledTrack_l(); 1719 } 1720 1721 sp<AudioTrack> t; 1722 CallbackData *newcbd = NULL; 1723 1724 // We don't attempt to create a new track if we are recycling an 1725 // offloaded track. But, if we are recycling a non-offloaded or we 1726 // are switching where one is offloaded and one isn't then we create 1727 // the new track in advance so that we can read additional stream info 1728 1729 if (!(reuse && bothOffloaded)) { 1730 ALOGV("creating new AudioTrack"); 1731 1732 if (mCallback != NULL) { 1733 newcbd = new CallbackData(this); 1734 t = new AudioTrack( 1735 mStreamType, 1736 sampleRate, 1737 format, 1738 channelMask, 1739 frameCount, 1740 flags, 1741 CallbackWrapper, 1742 newcbd, 1743 0, // notification frames 1744 mSessionId, 1745 AudioTrack::TRANSFER_CALLBACK, 1746 offloadInfo, 1747 mUid, 1748 mPid, 1749 mAttributes, 1750 doNotReconnect); 1751 } else { 1752 t = new AudioTrack( 1753 mStreamType, 1754 sampleRate, 1755 format, 1756 channelMask, 1757 frameCount, 1758 flags, 1759 NULL, // callback 1760 NULL, // user data 1761 0, // notification frames 1762 mSessionId, 1763 AudioTrack::TRANSFER_DEFAULT, 1764 NULL, // offload info 1765 mUid, 1766 mPid, 1767 mAttributes, 1768 doNotReconnect); 1769 } 1770 1771 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1772 ALOGE("Unable to create audio track"); 1773 delete newcbd; 1774 // t goes out of scope, so reference count drops to zero 1775 return NO_INIT; 1776 } else { 1777 // successful AudioTrack initialization implies a legacy stream type was generated 1778 // from the audio attributes 1779 mStreamType = t->streamType(); 1780 } 1781 } 1782 1783 if (reuse) { 1784 CHECK(mRecycledTrack != NULL); 1785 1786 if (!bothOffloaded) { 1787 if (mRecycledTrack->frameCount() != t->frameCount()) { 1788 ALOGV("framecount differs: %u/%u frames", 1789 mRecycledTrack->frameCount(), t->frameCount()); 1790 reuse = false; 1791 } 1792 } 1793 1794 if (reuse) { 1795 ALOGV("chaining to next output and recycling track"); 1796 close_l(); 1797 mTrack = mRecycledTrack; 1798 mRecycledTrack.clear(); 1799 if (mCallbackData != NULL) { 1800 mCallbackData->setOutput(this); 1801 } 1802 delete newcbd; 1803 return OK; 1804 } 1805 } 1806 1807 // we're not going to reuse the track, unblock and flush it 1808 // this was done earlier if both tracks are offloaded 1809 if (!bothOffloaded) { 1810 deleteRecycledTrack_l(); 1811 } 1812 1813 CHECK((t != NULL) && ((mCallback == NULL) || (newcbd != NULL))); 1814 1815 mCallbackData = newcbd; 1816 ALOGV("setVolume"); 1817 t->setVolume(mLeftVolume, mRightVolume); 1818 1819 mSampleRateHz = sampleRate; 1820 mFlags = flags; 1821 mMsecsPerFrame = 1E3f / (mPlaybackRate.mSpeed * sampleRate); 1822 mFrameSize = t->frameSize(); 1823 mTrack = t; 1824 1825 status_t res = NO_ERROR; 1826 // Note some output devices may give us a direct track even though we don't specify it. 1827 // Example: Line application b/17459982. 1828 if ((t->getFlags() & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD | AUDIO_OUTPUT_FLAG_DIRECT)) == 0) { 1829 res = t->setPlaybackRate(mPlaybackRate); 1830 if (res == NO_ERROR) { 1831 t->setAuxEffectSendLevel(mSendLevel); 1832 res = t->attachAuxEffect(mAuxEffectId); 1833 } 1834 } 1835 ALOGV("open() DONE status %d", res); 1836 return res; 1837} 1838 1839status_t MediaPlayerService::AudioOutput::start() 1840{ 1841 ALOGV("start"); 1842 Mutex::Autolock lock(mLock); 1843 if (mCallbackData != NULL) { 1844 mCallbackData->endTrackSwitch(); 1845 } 1846 if (mTrack != 0) { 1847 mTrack->setVolume(mLeftVolume, mRightVolume); 1848 mTrack->setAuxEffectSendLevel(mSendLevel); 1849 return mTrack->start(); 1850 } 1851 return NO_INIT; 1852} 1853 1854void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) { 1855 Mutex::Autolock lock(mLock); 1856 mNextOutput = nextOutput; 1857} 1858 1859void MediaPlayerService::AudioOutput::switchToNextOutput() { 1860 ALOGV("switchToNextOutput"); 1861 1862 // Try to acquire the callback lock before moving track (without incurring deadlock). 1863 const unsigned kMaxSwitchTries = 100; 1864 Mutex::Autolock lock(mLock); 1865 for (unsigned tries = 0;;) { 1866 if (mTrack == 0) { 1867 return; 1868 } 1869 if (mNextOutput != NULL && mNextOutput != this) { 1870 if (mCallbackData != NULL) { 1871 // two alternative approaches 1872#if 1 1873 CallbackData *callbackData = mCallbackData; 1874 mLock.unlock(); 1875 // proper acquisition sequence 1876 callbackData->lock(); 1877 mLock.lock(); 1878 // Caution: it is unlikely that someone deleted our callback or changed our target 1879 if (callbackData != mCallbackData || mNextOutput == NULL || mNextOutput == this) { 1880 // fatal if we are starved out. 1881 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries, 1882 "switchToNextOutput() cannot obtain correct lock sequence"); 1883 callbackData->unlock(); 1884 continue; 1885 } 1886 callbackData->mSwitching = true; // begin track switch 1887#else 1888 // tryBeginTrackSwitch() returns false if the callback has the lock. 1889 if (!mCallbackData->tryBeginTrackSwitch()) { 1890 // fatal if we are starved out. 1891 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries, 1892 "switchToNextOutput() cannot obtain callback lock"); 1893 mLock.unlock(); 1894 usleep(5 * 1000 /* usec */); // allow callback to use AudioOutput 1895 mLock.lock(); 1896 continue; 1897 } 1898#endif 1899 } 1900 1901 Mutex::Autolock nextLock(mNextOutput->mLock); 1902 1903 // If the next output track is not NULL, then it has been 1904 // opened already for playback. 1905 // This is possible even without the next player being started, 1906 // for example, the next player could be prepared and seeked. 1907 // 1908 // Presuming it isn't advisable to force the track over. 1909 if (mNextOutput->mTrack == NULL) { 1910 ALOGD("Recycling track for gapless playback"); 1911 delete mNextOutput->mCallbackData; 1912 mNextOutput->mCallbackData = mCallbackData; 1913 mNextOutput->mRecycledTrack = mTrack; 1914 mNextOutput->mSampleRateHz = mSampleRateHz; 1915 mNextOutput->mMsecsPerFrame = mMsecsPerFrame; 1916 mNextOutput->mFlags = mFlags; 1917 mNextOutput->mFrameSize = mFrameSize; 1918 close_l(); 1919 mCallbackData = NULL; // destruction handled by mNextOutput 1920 } else { 1921 ALOGW("Ignoring gapless playback because next player has already started"); 1922 // remove track in case resource needed for future players. 1923 if (mCallbackData != NULL) { 1924 mCallbackData->endTrackSwitch(); // release lock for callbacks before close. 1925 } 1926 close_l(); 1927 } 1928 } 1929 break; 1930 } 1931} 1932 1933ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size, bool blocking) 1934{ 1935 Mutex::Autolock lock(mLock); 1936 LOG_ALWAYS_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 1937 1938 //ALOGV("write(%p, %u)", buffer, size); 1939 if (mTrack != 0) { 1940 return mTrack->write(buffer, size, blocking); 1941 } 1942 return NO_INIT; 1943} 1944 1945void MediaPlayerService::AudioOutput::stop() 1946{ 1947 ALOGV("stop"); 1948 Mutex::Autolock lock(mLock); 1949 if (mTrack != 0) mTrack->stop(); 1950} 1951 1952void MediaPlayerService::AudioOutput::flush() 1953{ 1954 ALOGV("flush"); 1955 Mutex::Autolock lock(mLock); 1956 if (mTrack != 0) mTrack->flush(); 1957} 1958 1959void MediaPlayerService::AudioOutput::pause() 1960{ 1961 ALOGV("pause"); 1962 Mutex::Autolock lock(mLock); 1963 if (mTrack != 0) mTrack->pause(); 1964} 1965 1966void MediaPlayerService::AudioOutput::close() 1967{ 1968 ALOGV("close"); 1969 sp<AudioTrack> track; 1970 { 1971 Mutex::Autolock lock(mLock); 1972 track = mTrack; 1973 close_l(); // clears mTrack 1974 } 1975 // destruction of the track occurs outside of mutex. 1976} 1977 1978void MediaPlayerService::AudioOutput::setVolume(float left, float right) 1979{ 1980 ALOGV("setVolume(%f, %f)", left, right); 1981 Mutex::Autolock lock(mLock); 1982 mLeftVolume = left; 1983 mRightVolume = right; 1984 if (mTrack != 0) { 1985 mTrack->setVolume(left, right); 1986 } 1987} 1988 1989status_t MediaPlayerService::AudioOutput::setPlaybackRate(const AudioPlaybackRate &rate) 1990{ 1991 ALOGV("setPlaybackRate(%f %f %d %d)", 1992 rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode); 1993 Mutex::Autolock lock(mLock); 1994 if (mTrack == 0) { 1995 // remember rate so that we can set it when the track is opened 1996 mPlaybackRate = rate; 1997 return OK; 1998 } 1999 status_t res = mTrack->setPlaybackRate(rate); 2000 if (res != NO_ERROR) { 2001 return res; 2002 } 2003 // rate.mSpeed is always greater than 0 if setPlaybackRate succeeded 2004 CHECK_GT(rate.mSpeed, 0.f); 2005 mPlaybackRate = rate; 2006 if (mSampleRateHz != 0) { 2007 mMsecsPerFrame = 1E3f / (rate.mSpeed * mSampleRateHz); 2008 } 2009 return res; 2010} 2011 2012status_t MediaPlayerService::AudioOutput::getPlaybackRate(AudioPlaybackRate *rate) 2013{ 2014 ALOGV("setPlaybackRate"); 2015 Mutex::Autolock lock(mLock); 2016 if (mTrack == 0) { 2017 return NO_INIT; 2018 } 2019 *rate = mTrack->getPlaybackRate(); 2020 return NO_ERROR; 2021} 2022 2023status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level) 2024{ 2025 ALOGV("setAuxEffectSendLevel(%f)", level); 2026 Mutex::Autolock lock(mLock); 2027 mSendLevel = level; 2028 if (mTrack != 0) { 2029 return mTrack->setAuxEffectSendLevel(level); 2030 } 2031 return NO_ERROR; 2032} 2033 2034status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId) 2035{ 2036 ALOGV("attachAuxEffect(%d)", effectId); 2037 Mutex::Autolock lock(mLock); 2038 mAuxEffectId = effectId; 2039 if (mTrack != 0) { 2040 return mTrack->attachAuxEffect(effectId); 2041 } 2042 return NO_ERROR; 2043} 2044 2045// static 2046void MediaPlayerService::AudioOutput::CallbackWrapper( 2047 int event, void *cookie, void *info) { 2048 //ALOGV("callbackwrapper"); 2049 CallbackData *data = (CallbackData*)cookie; 2050 // lock to ensure we aren't caught in the middle of a track switch. 2051 data->lock(); 2052 AudioOutput *me = data->getOutput(); 2053 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 2054 if (me == NULL) { 2055 // no output set, likely because the track was scheduled to be reused 2056 // by another player, but the format turned out to be incompatible. 2057 data->unlock(); 2058 if (buffer != NULL) { 2059 buffer->size = 0; 2060 } 2061 return; 2062 } 2063 2064 switch(event) { 2065 case AudioTrack::EVENT_MORE_DATA: { 2066 size_t actualSize = (*me->mCallback)( 2067 me, buffer->raw, buffer->size, me->mCallbackCookie, 2068 CB_EVENT_FILL_BUFFER); 2069 2070 // Log when no data is returned from the callback. 2071 // (1) We may have no data (especially with network streaming sources). 2072 // (2) We may have reached the EOS and the audio track is not stopped yet. 2073 // Note that AwesomePlayer/AudioPlayer will only return zero size when it reaches the EOS. 2074 // NuPlayerRenderer will return zero when it doesn't have data (it doesn't block to fill). 2075 // 2076 // This is a benign busy-wait, with the next data request generated 10 ms or more later; 2077 // nevertheless for power reasons, we don't want to see too many of these. 2078 2079 ALOGV_IF(actualSize == 0 && buffer->size > 0, "callbackwrapper: empty buffer returned"); 2080 2081 buffer->size = actualSize; 2082 } break; 2083 2084 case AudioTrack::EVENT_STREAM_END: 2085 // currently only occurs for offloaded callbacks 2086 ALOGV("callbackwrapper: deliver EVENT_STREAM_END"); 2087 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 2088 me->mCallbackCookie, CB_EVENT_STREAM_END); 2089 break; 2090 2091 case AudioTrack::EVENT_NEW_IAUDIOTRACK : 2092 ALOGV("callbackwrapper: deliver EVENT_TEAR_DOWN"); 2093 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 2094 me->mCallbackCookie, CB_EVENT_TEAR_DOWN); 2095 break; 2096 2097 case AudioTrack::EVENT_UNDERRUN: 2098 // This occurs when there is no data available, typically 2099 // when there is a failure to supply data to the AudioTrack. It can also 2100 // occur in non-offloaded mode when the audio device comes out of standby. 2101 // 2102 // If an AudioTrack underruns it outputs silence. Since this happens suddenly 2103 // it may sound like an audible pop or glitch. 2104 // 2105 // The underrun event is sent once per track underrun; the condition is reset 2106 // when more data is sent to the AudioTrack. 2107 ALOGI("callbackwrapper: EVENT_UNDERRUN (discarded)"); 2108 break; 2109 2110 default: 2111 ALOGE("received unknown event type: %d inside CallbackWrapper !", event); 2112 } 2113 2114 data->unlock(); 2115} 2116 2117audio_session_t MediaPlayerService::AudioOutput::getSessionId() const 2118{ 2119 Mutex::Autolock lock(mLock); 2120 return mSessionId; 2121} 2122 2123uint32_t MediaPlayerService::AudioOutput::getSampleRate() const 2124{ 2125 Mutex::Autolock lock(mLock); 2126 if (mTrack == 0) return 0; 2127 return mTrack->getSampleRate(); 2128} 2129 2130//////////////////////////////////////////////////////////////////////////////// 2131 2132struct CallbackThread : public Thread { 2133 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 2134 MediaPlayerBase::AudioSink::AudioCallback cb, 2135 void *cookie); 2136 2137protected: 2138 virtual ~CallbackThread(); 2139 2140 virtual bool threadLoop(); 2141 2142private: 2143 wp<MediaPlayerBase::AudioSink> mSink; 2144 MediaPlayerBase::AudioSink::AudioCallback mCallback; 2145 void *mCookie; 2146 void *mBuffer; 2147 size_t mBufferSize; 2148 2149 CallbackThread(const CallbackThread &); 2150 CallbackThread &operator=(const CallbackThread &); 2151}; 2152 2153CallbackThread::CallbackThread( 2154 const wp<MediaPlayerBase::AudioSink> &sink, 2155 MediaPlayerBase::AudioSink::AudioCallback cb, 2156 void *cookie) 2157 : mSink(sink), 2158 mCallback(cb), 2159 mCookie(cookie), 2160 mBuffer(NULL), 2161 mBufferSize(0) { 2162} 2163 2164CallbackThread::~CallbackThread() { 2165 if (mBuffer) { 2166 free(mBuffer); 2167 mBuffer = NULL; 2168 } 2169} 2170 2171bool CallbackThread::threadLoop() { 2172 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 2173 if (sink == NULL) { 2174 return false; 2175 } 2176 2177 if (mBuffer == NULL) { 2178 mBufferSize = sink->bufferSize(); 2179 mBuffer = malloc(mBufferSize); 2180 } 2181 2182 size_t actualSize = 2183 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie, 2184 MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER); 2185 2186 if (actualSize > 0) { 2187 sink->write(mBuffer, actualSize); 2188 // Could return false on sink->write() error or short count. 2189 // Not necessarily appropriate but would work for AudioCache behavior. 2190 } 2191 2192 return true; 2193} 2194 2195//////////////////////////////////////////////////////////////////////////////// 2196 2197void MediaPlayerService::addBatteryData(uint32_t params) 2198{ 2199 Mutex::Autolock lock(mLock); 2200 2201 int32_t time = systemTime() / 1000000L; 2202 2203 // change audio output devices. This notification comes from AudioFlinger 2204 if ((params & kBatteryDataSpeakerOn) 2205 || (params & kBatteryDataOtherAudioDeviceOn)) { 2206 2207 int deviceOn[NUM_AUDIO_DEVICES]; 2208 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2209 deviceOn[i] = 0; 2210 } 2211 2212 if ((params & kBatteryDataSpeakerOn) 2213 && (params & kBatteryDataOtherAudioDeviceOn)) { 2214 deviceOn[SPEAKER_AND_OTHER] = 1; 2215 } else if (params & kBatteryDataSpeakerOn) { 2216 deviceOn[SPEAKER] = 1; 2217 } else { 2218 deviceOn[OTHER_AUDIO_DEVICE] = 1; 2219 } 2220 2221 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2222 if (mBatteryAudio.deviceOn[i] != deviceOn[i]){ 2223 2224 if (mBatteryAudio.refCount > 0) { // if playing audio 2225 if (!deviceOn[i]) { 2226 mBatteryAudio.lastTime[i] += time; 2227 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2228 mBatteryAudio.lastTime[i] = 0; 2229 } else { 2230 mBatteryAudio.lastTime[i] = 0 - time; 2231 } 2232 } 2233 2234 mBatteryAudio.deviceOn[i] = deviceOn[i]; 2235 } 2236 } 2237 return; 2238 } 2239 2240 // an audio stream is started 2241 if (params & kBatteryDataAudioFlingerStart) { 2242 // record the start time only if currently no other audio 2243 // is being played 2244 if (mBatteryAudio.refCount == 0) { 2245 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2246 if (mBatteryAudio.deviceOn[i]) { 2247 mBatteryAudio.lastTime[i] -= time; 2248 } 2249 } 2250 } 2251 2252 mBatteryAudio.refCount ++; 2253 return; 2254 2255 } else if (params & kBatteryDataAudioFlingerStop) { 2256 if (mBatteryAudio.refCount <= 0) { 2257 ALOGW("Battery track warning: refCount is <= 0"); 2258 return; 2259 } 2260 2261 // record the stop time only if currently this is the only 2262 // audio being played 2263 if (mBatteryAudio.refCount == 1) { 2264 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2265 if (mBatteryAudio.deviceOn[i]) { 2266 mBatteryAudio.lastTime[i] += time; 2267 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2268 mBatteryAudio.lastTime[i] = 0; 2269 } 2270 } 2271 } 2272 2273 mBatteryAudio.refCount --; 2274 return; 2275 } 2276 2277 int uid = IPCThreadState::self()->getCallingUid(); 2278 if (uid == AID_MEDIA) { 2279 return; 2280 } 2281 int index = mBatteryData.indexOfKey(uid); 2282 2283 if (index < 0) { // create a new entry for this UID 2284 BatteryUsageInfo info; 2285 info.audioTotalTime = 0; 2286 info.videoTotalTime = 0; 2287 info.audioLastTime = 0; 2288 info.videoLastTime = 0; 2289 info.refCount = 0; 2290 2291 if (mBatteryData.add(uid, info) == NO_MEMORY) { 2292 ALOGE("Battery track error: no memory for new app"); 2293 return; 2294 } 2295 } 2296 2297 BatteryUsageInfo &info = mBatteryData.editValueFor(uid); 2298 2299 if (params & kBatteryDataCodecStarted) { 2300 if (params & kBatteryDataTrackAudio) { 2301 info.audioLastTime -= time; 2302 info.refCount ++; 2303 } 2304 if (params & kBatteryDataTrackVideo) { 2305 info.videoLastTime -= time; 2306 info.refCount ++; 2307 } 2308 } else { 2309 if (info.refCount == 0) { 2310 ALOGW("Battery track warning: refCount is already 0"); 2311 return; 2312 } else if (info.refCount < 0) { 2313 ALOGE("Battery track error: refCount < 0"); 2314 mBatteryData.removeItem(uid); 2315 return; 2316 } 2317 2318 if (params & kBatteryDataTrackAudio) { 2319 info.audioLastTime += time; 2320 info.refCount --; 2321 } 2322 if (params & kBatteryDataTrackVideo) { 2323 info.videoLastTime += time; 2324 info.refCount --; 2325 } 2326 2327 // no stream is being played by this UID 2328 if (info.refCount == 0) { 2329 info.audioTotalTime += info.audioLastTime; 2330 info.audioLastTime = 0; 2331 info.videoTotalTime += info.videoLastTime; 2332 info.videoLastTime = 0; 2333 } 2334 } 2335} 2336 2337status_t MediaPlayerService::pullBatteryData(Parcel* reply) { 2338 Mutex::Autolock lock(mLock); 2339 2340 // audio output devices usage 2341 int32_t time = systemTime() / 1000000L; //in ms 2342 int32_t totalTime; 2343 2344 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2345 totalTime = mBatteryAudio.totalTime[i]; 2346 2347 if (mBatteryAudio.deviceOn[i] 2348 && (mBatteryAudio.lastTime[i] != 0)) { 2349 int32_t tmpTime = mBatteryAudio.lastTime[i] + time; 2350 totalTime += tmpTime; 2351 } 2352 2353 reply->writeInt32(totalTime); 2354 // reset the total time 2355 mBatteryAudio.totalTime[i] = 0; 2356 } 2357 2358 // codec usage 2359 BatteryUsageInfo info; 2360 int size = mBatteryData.size(); 2361 2362 reply->writeInt32(size); 2363 int i = 0; 2364 2365 while (i < size) { 2366 info = mBatteryData.valueAt(i); 2367 2368 reply->writeInt32(mBatteryData.keyAt(i)); //UID 2369 reply->writeInt32(info.audioTotalTime); 2370 reply->writeInt32(info.videoTotalTime); 2371 2372 info.audioTotalTime = 0; 2373 info.videoTotalTime = 0; 2374 2375 // remove the UID entry where no stream is being played 2376 if (info.refCount <= 0) { 2377 mBatteryData.removeItemsAt(i); 2378 size --; 2379 i --; 2380 } 2381 i++; 2382 } 2383 return NO_ERROR; 2384} 2385} // namespace android 2386