MediaPlayerService.cpp revision 17a736c3e1d062d7fc916329eb32aef8935614af
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 <android_runtime/ActivityManager.h> 38 39#include <binder/IPCThreadState.h> 40#include <binder/IServiceManager.h> 41#include <binder/MemoryHeapBase.h> 42#include <binder/MemoryBase.h> 43#include <gui/SurfaceTextureClient.h> 44#include <utils/Errors.h> // for status_t 45#include <utils/String8.h> 46#include <utils/SystemClock.h> 47#include <utils/Vector.h> 48#include <cutils/properties.h> 49 50#include <media/MediaPlayerInterface.h> 51#include <media/mediarecorder.h> 52#include <media/MediaMetadataRetrieverInterface.h> 53#include <media/Metadata.h> 54#include <media/AudioTrack.h> 55#include <media/MemoryLeakTrackUtil.h> 56#include <media/stagefright/MediaErrors.h> 57 58#include <system/audio.h> 59 60#include <private/android_filesystem_config.h> 61 62#include "MediaRecorderClient.h" 63#include "MediaPlayerService.h" 64#include "MetadataRetrieverClient.h" 65 66#include "MidiFile.h" 67#include "TestPlayerStub.h" 68#include "StagefrightPlayer.h" 69#include "nuplayer/NuPlayerDriver.h" 70 71#include <OMX.h> 72 73namespace android { 74sp<MediaPlayerBase> createAAH_TXPlayer(); 75sp<MediaPlayerBase> createAAH_RXPlayer(); 76} 77 78namespace { 79using android::media::Metadata; 80using android::status_t; 81using android::OK; 82using android::BAD_VALUE; 83using android::NOT_ENOUGH_DATA; 84using android::Parcel; 85 86// Max number of entries in the filter. 87const int kMaxFilterSize = 64; // I pulled that out of thin air. 88 89// FIXME: Move all the metadata related function in the Metadata.cpp 90 91 92// Unmarshall a filter from a Parcel. 93// Filter format in a parcel: 94// 95// 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 96// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 97// | number of entries (n) | 98// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 99// | metadata type 1 | 100// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 101// | metadata type 2 | 102// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 103// .... 104// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 105// | metadata type n | 106// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 107// 108// @param p Parcel that should start with a filter. 109// @param[out] filter On exit contains the list of metadata type to be 110// filtered. 111// @param[out] status On exit contains the status code to be returned. 112// @return true if the parcel starts with a valid filter. 113bool unmarshallFilter(const Parcel& p, 114 Metadata::Filter *filter, 115 status_t *status) 116{ 117 int32_t val; 118 if (p.readInt32(&val) != OK) 119 { 120 ALOGE("Failed to read filter's length"); 121 *status = NOT_ENOUGH_DATA; 122 return false; 123 } 124 125 if( val > kMaxFilterSize || val < 0) 126 { 127 ALOGE("Invalid filter len %d", val); 128 *status = BAD_VALUE; 129 return false; 130 } 131 132 const size_t num = val; 133 134 filter->clear(); 135 filter->setCapacity(num); 136 137 size_t size = num * sizeof(Metadata::Type); 138 139 140 if (p.dataAvail() < size) 141 { 142 ALOGE("Filter too short expected %d but got %d", size, p.dataAvail()); 143 *status = NOT_ENOUGH_DATA; 144 return false; 145 } 146 147 const Metadata::Type *data = 148 static_cast<const Metadata::Type*>(p.readInplace(size)); 149 150 if (NULL == data) 151 { 152 ALOGE("Filter had no data"); 153 *status = BAD_VALUE; 154 return false; 155 } 156 157 // TODO: The stl impl of vector would be more efficient here 158 // because it degenerates into a memcpy on pod types. Try to 159 // replace later or use stl::set. 160 for (size_t i = 0; i < num; ++i) 161 { 162 filter->add(*data); 163 ++data; 164 } 165 *status = OK; 166 return true; 167} 168 169// @param filter Of metadata type. 170// @param val To be searched. 171// @return true if a match was found. 172bool findMetadata(const Metadata::Filter& filter, const int32_t val) 173{ 174 // Deal with empty and ANY right away 175 if (filter.isEmpty()) return false; 176 if (filter[0] == Metadata::kAny) return true; 177 178 return filter.indexOf(val) >= 0; 179} 180 181} // anonymous namespace 182 183 184namespace android { 185 186static bool checkPermission(const char* permissionString) { 187#ifndef HAVE_ANDROID_OS 188 return true; 189#endif 190 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 191 bool ok = checkCallingPermission(String16(permissionString)); 192 if (!ok) ALOGE("Request requires %s", permissionString); 193 return ok; 194} 195 196// TODO: Temp hack until we can register players 197typedef struct { 198 const char *extension; 199 const player_type playertype; 200} extmap; 201extmap FILE_EXTS [] = { 202 {".mid", SONIVOX_PLAYER}, 203 {".midi", SONIVOX_PLAYER}, 204 {".smf", SONIVOX_PLAYER}, 205 {".xmf", SONIVOX_PLAYER}, 206 {".imy", SONIVOX_PLAYER}, 207 {".rtttl", SONIVOX_PLAYER}, 208 {".rtx", SONIVOX_PLAYER}, 209 {".ota", SONIVOX_PLAYER}, 210}; 211 212// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround 213/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4; 214/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false; 215 216void MediaPlayerService::instantiate() { 217 defaultServiceManager()->addService( 218 String16("media.player"), new MediaPlayerService()); 219} 220 221MediaPlayerService::MediaPlayerService() 222{ 223 ALOGV("MediaPlayerService created"); 224 mNextConnId = 1; 225 226 mBatteryAudio.refCount = 0; 227 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 228 mBatteryAudio.deviceOn[i] = 0; 229 mBatteryAudio.lastTime[i] = 0; 230 mBatteryAudio.totalTime[i] = 0; 231 } 232 // speaker is on by default 233 mBatteryAudio.deviceOn[SPEAKER] = 1; 234} 235 236MediaPlayerService::~MediaPlayerService() 237{ 238 ALOGV("MediaPlayerService destroyed"); 239} 240 241sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(pid_t pid) 242{ 243 sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid); 244 wp<MediaRecorderClient> w = recorder; 245 Mutex::Autolock lock(mLock); 246 mMediaRecorderClients.add(w); 247 ALOGV("Create new media recorder client from pid %d", pid); 248 return recorder; 249} 250 251void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client) 252{ 253 Mutex::Autolock lock(mLock); 254 mMediaRecorderClients.remove(client); 255 ALOGV("Delete media recorder client"); 256} 257 258sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever(pid_t pid) 259{ 260 sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid); 261 ALOGV("Create new media retriever from pid %d", pid); 262 return retriever; 263} 264 265sp<IMediaPlayer> MediaPlayerService::create(pid_t pid, const sp<IMediaPlayerClient>& client, 266 int audioSessionId) 267{ 268 int32_t connId = android_atomic_inc(&mNextConnId); 269 270 sp<Client> c = new Client( 271 this, pid, connId, client, audioSessionId, 272 IPCThreadState::self()->getCallingUid()); 273 274 ALOGV("Create new client(%d) from pid %d, uid %d, ", connId, pid, 275 IPCThreadState::self()->getCallingUid()); 276 277 wp<Client> w = c; 278 { 279 Mutex::Autolock lock(mLock); 280 mClients.add(w); 281 } 282 return c; 283} 284 285sp<IOMX> MediaPlayerService::getOMX() { 286 Mutex::Autolock autoLock(mLock); 287 288 if (mOMX.get() == NULL) { 289 mOMX = new OMX; 290 } 291 292 return mOMX; 293} 294 295status_t MediaPlayerService::AudioCache::dump(int fd, const Vector<String16>& args) const 296{ 297 const size_t SIZE = 256; 298 char buffer[SIZE]; 299 String8 result; 300 301 result.append(" AudioCache\n"); 302 if (mHeap != 0) { 303 snprintf(buffer, 255, " heap base(%p), size(%d), flags(%d), device(%s)\n", 304 mHeap->getBase(), mHeap->getSize(), mHeap->getFlags(), mHeap->getDevice()); 305 result.append(buffer); 306 } 307 snprintf(buffer, 255, " msec per frame(%f), channel count(%d), format(%d), frame count(%ld)\n", 308 mMsecsPerFrame, mChannelCount, mFormat, mFrameCount); 309 result.append(buffer); 310 snprintf(buffer, 255, " sample rate(%d), size(%d), error(%d), command complete(%s)\n", 311 mSampleRate, mSize, mError, mCommandComplete?"true":"false"); 312 result.append(buffer); 313 ::write(fd, result.string(), result.size()); 314 return NO_ERROR; 315} 316 317status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const 318{ 319 const size_t SIZE = 256; 320 char buffer[SIZE]; 321 String8 result; 322 323 result.append(" AudioOutput\n"); 324 snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", 325 mStreamType, mLeftVolume, mRightVolume); 326 result.append(buffer); 327 snprintf(buffer, 255, " msec per frame(%f), latency (%d)\n", 328 mMsecsPerFrame, (mTrack != 0) ? mTrack->latency() : -1); 329 result.append(buffer); 330 snprintf(buffer, 255, " aux effect id(%d), send level (%f)\n", 331 mAuxEffectId, mSendLevel); 332 result.append(buffer); 333 334 ::write(fd, result.string(), result.size()); 335 if (mTrack != 0) { 336 mTrack->dump(fd, args); 337 } 338 return NO_ERROR; 339} 340 341status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) const 342{ 343 const size_t SIZE = 256; 344 char buffer[SIZE]; 345 String8 result; 346 result.append(" Client\n"); 347 snprintf(buffer, 255, " pid(%d), connId(%d), status(%d), looping(%s)\n", 348 mPid, mConnId, mStatus, mLoop?"true": "false"); 349 result.append(buffer); 350 write(fd, result.string(), result.size()); 351 if (mPlayer != NULL) { 352 mPlayer->dump(fd, args); 353 } 354 if (mAudioOutput != 0) { 355 mAudioOutput->dump(fd, args); 356 } 357 write(fd, "\n", 1); 358 return NO_ERROR; 359} 360 361status_t MediaPlayerService::dump(int fd, const Vector<String16>& args) 362{ 363 const size_t SIZE = 256; 364 char buffer[SIZE]; 365 String8 result; 366 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 367 snprintf(buffer, SIZE, "Permission Denial: " 368 "can't dump MediaPlayerService from pid=%d, uid=%d\n", 369 IPCThreadState::self()->getCallingPid(), 370 IPCThreadState::self()->getCallingUid()); 371 result.append(buffer); 372 } else { 373 Mutex::Autolock lock(mLock); 374 for (int i = 0, n = mClients.size(); i < n; ++i) { 375 sp<Client> c = mClients[i].promote(); 376 if (c != 0) c->dump(fd, args); 377 } 378 if (mMediaRecorderClients.size() == 0) { 379 result.append(" No media recorder client\n\n"); 380 } else { 381 for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) { 382 sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote(); 383 if (c != 0) { 384 snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n", c->mPid); 385 result.append(buffer); 386 write(fd, result.string(), result.size()); 387 result = "\n"; 388 c->dump(fd, args); 389 } 390 } 391 } 392 393 result.append(" Files opened and/or mapped:\n"); 394 snprintf(buffer, SIZE, "/proc/%d/maps", gettid()); 395 FILE *f = fopen(buffer, "r"); 396 if (f) { 397 while (!feof(f)) { 398 fgets(buffer, SIZE, f); 399 if (strstr(buffer, " /mnt/sdcard/") || 400 strstr(buffer, " /system/sounds/") || 401 strstr(buffer, " /data/") || 402 strstr(buffer, " /system/media/")) { 403 result.append(" "); 404 result.append(buffer); 405 } 406 } 407 fclose(f); 408 } else { 409 result.append("couldn't open "); 410 result.append(buffer); 411 result.append("\n"); 412 } 413 414 snprintf(buffer, SIZE, "/proc/%d/fd", gettid()); 415 DIR *d = opendir(buffer); 416 if (d) { 417 struct dirent *ent; 418 while((ent = readdir(d)) != NULL) { 419 if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) { 420 snprintf(buffer, SIZE, "/proc/%d/fd/%s", gettid(), ent->d_name); 421 struct stat s; 422 if (lstat(buffer, &s) == 0) { 423 if ((s.st_mode & S_IFMT) == S_IFLNK) { 424 char linkto[256]; 425 int len = readlink(buffer, linkto, sizeof(linkto)); 426 if(len > 0) { 427 if(len > 255) { 428 linkto[252] = '.'; 429 linkto[253] = '.'; 430 linkto[254] = '.'; 431 linkto[255] = 0; 432 } else { 433 linkto[len] = 0; 434 } 435 if (strstr(linkto, "/mnt/sdcard/") == linkto || 436 strstr(linkto, "/system/sounds/") == linkto || 437 strstr(linkto, "/data/") == linkto || 438 strstr(linkto, "/system/media/") == linkto) { 439 result.append(" "); 440 result.append(buffer); 441 result.append(" -> "); 442 result.append(linkto); 443 result.append("\n"); 444 } 445 } 446 } else { 447 result.append(" unexpected type for "); 448 result.append(buffer); 449 result.append("\n"); 450 } 451 } 452 } 453 } 454 closedir(d); 455 } else { 456 result.append("couldn't open "); 457 result.append(buffer); 458 result.append("\n"); 459 } 460 461 bool dumpMem = false; 462 for (size_t i = 0; i < args.size(); i++) { 463 if (args[i] == String16("-m")) { 464 dumpMem = true; 465 } 466 } 467 if (dumpMem) { 468 dumpMemoryAddresses(fd); 469 } 470 } 471 write(fd, result.string(), result.size()); 472 return NO_ERROR; 473} 474 475void MediaPlayerService::removeClient(wp<Client> client) 476{ 477 Mutex::Autolock lock(mLock); 478 mClients.remove(client); 479} 480 481MediaPlayerService::Client::Client( 482 const sp<MediaPlayerService>& service, pid_t pid, 483 int32_t connId, const sp<IMediaPlayerClient>& client, 484 int audioSessionId, uid_t uid) 485{ 486 ALOGV("Client(%d) constructor", connId); 487 mPid = pid; 488 mConnId = connId; 489 mService = service; 490 mClient = client; 491 mLoop = false; 492 mStatus = NO_INIT; 493 mAudioSessionId = audioSessionId; 494 mUID = uid; 495 mRetransmitEndpointValid = false; 496 497#if CALLBACK_ANTAGONIZER 498 ALOGD("create Antagonizer"); 499 mAntagonizer = new Antagonizer(notify, this); 500#endif 501} 502 503MediaPlayerService::Client::~Client() 504{ 505 ALOGV("Client(%d) destructor pid = %d", mConnId, mPid); 506 mAudioOutput.clear(); 507 wp<Client> client(this); 508 disconnect(); 509 mService->removeClient(client); 510} 511 512void MediaPlayerService::Client::disconnect() 513{ 514 ALOGV("disconnect(%d) from pid %d", mConnId, mPid); 515 // grab local reference and clear main reference to prevent future 516 // access to object 517 sp<MediaPlayerBase> p; 518 { 519 Mutex::Autolock l(mLock); 520 p = mPlayer; 521 } 522 mClient.clear(); 523 524 mPlayer.clear(); 525 526 // clear the notification to prevent callbacks to dead client 527 // and reset the player. We assume the player will serialize 528 // access to itself if necessary. 529 if (p != 0) { 530 p->setNotifyCallback(0, 0); 531#if CALLBACK_ANTAGONIZER 532 ALOGD("kill Antagonizer"); 533 mAntagonizer->kill(); 534#endif 535 p->reset(); 536 } 537 538 disconnectNativeWindow(); 539 540 IPCThreadState::self()->flushCommands(); 541} 542 543static player_type getDefaultPlayerType() { 544 return STAGEFRIGHT_PLAYER; 545} 546 547player_type getPlayerType(int fd, int64_t offset, int64_t length) 548{ 549 char buf[20]; 550 lseek(fd, offset, SEEK_SET); 551 read(fd, buf, sizeof(buf)); 552 lseek(fd, offset, SEEK_SET); 553 554 long ident = *((long*)buf); 555 556 // Ogg vorbis? 557 if (ident == 0x5367674f) // 'OggS' 558 return STAGEFRIGHT_PLAYER; 559 560 // Some kind of MIDI? 561 EAS_DATA_HANDLE easdata; 562 if (EAS_Init(&easdata) == EAS_SUCCESS) { 563 EAS_FILE locator; 564 locator.path = NULL; 565 locator.fd = fd; 566 locator.offset = offset; 567 locator.length = length; 568 EAS_HANDLE eashandle; 569 if (EAS_OpenFile(easdata, &locator, &eashandle) == EAS_SUCCESS) { 570 EAS_CloseFile(easdata, eashandle); 571 EAS_Shutdown(easdata); 572 return SONIVOX_PLAYER; 573 } 574 EAS_Shutdown(easdata); 575 } 576 577 return getDefaultPlayerType(); 578} 579 580player_type getPlayerType(const char* url) 581{ 582 if (TestPlayerStub::canBeUsed(url)) { 583 return TEST_PLAYER; 584 } 585 586 if (!strncasecmp("http://", url, 7) 587 || !strncasecmp("https://", url, 8)) { 588 size_t len = strlen(url); 589 if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) { 590 return NU_PLAYER; 591 } 592 593 if (strstr(url,"m3u8")) { 594 return NU_PLAYER; 595 } 596 } 597 598 if (!strncasecmp("rtsp://", url, 7)) { 599 return NU_PLAYER; 600 } 601 602 if (!strncasecmp("aahRX://", url, 8)) { 603 return AAH_RX_PLAYER; 604 } 605 606 // use MidiFile for MIDI extensions 607 int lenURL = strlen(url); 608 for (int i = 0; i < NELEM(FILE_EXTS); ++i) { 609 int len = strlen(FILE_EXTS[i].extension); 610 int start = lenURL - len; 611 if (start > 0) { 612 if (!strncasecmp(url + start, FILE_EXTS[i].extension, len)) { 613 return FILE_EXTS[i].playertype; 614 } 615 } 616 } 617 618 return getDefaultPlayerType(); 619} 620 621player_type MediaPlayerService::Client::getPlayerType(int fd, 622 int64_t offset, 623 int64_t length) 624{ 625 // Until re-transmit functionality is added to the existing core android 626 // players, we use the special AAH TX player whenever we were configured 627 // for retransmission. 628 if (mRetransmitEndpointValid) { 629 return AAH_TX_PLAYER; 630 } 631 632 return android::getPlayerType(fd, offset, length); 633} 634 635player_type MediaPlayerService::Client::getPlayerType(const char* url) 636{ 637 // Until re-transmit functionality is added to the existing core android 638 // players, we use the special AAH TX player whenever we were configured 639 // for retransmission. 640 if (mRetransmitEndpointValid) { 641 return AAH_TX_PLAYER; 642 } 643 644 return android::getPlayerType(url); 645} 646 647player_type MediaPlayerService::Client::getPlayerType( 648 const sp<IStreamSource> &source) { 649 // Until re-transmit functionality is added to the existing core android 650 // players, we use the special AAH TX player whenever we were configured 651 // for retransmission. 652 if (mRetransmitEndpointValid) { 653 return AAH_TX_PLAYER; 654 } 655 656 return NU_PLAYER; 657} 658 659static sp<MediaPlayerBase> createPlayer(player_type playerType, void* cookie, 660 notify_callback_f notifyFunc) 661{ 662 sp<MediaPlayerBase> p; 663 switch (playerType) { 664 case SONIVOX_PLAYER: 665 ALOGV(" create MidiFile"); 666 p = new MidiFile(); 667 break; 668 case STAGEFRIGHT_PLAYER: 669 ALOGV(" create StagefrightPlayer"); 670 p = new StagefrightPlayer; 671 break; 672 case NU_PLAYER: 673 ALOGV(" create NuPlayer"); 674 p = new NuPlayerDriver; 675 break; 676 case TEST_PLAYER: 677 ALOGV("Create Test Player stub"); 678 p = new TestPlayerStub(); 679 break; 680 case AAH_RX_PLAYER: 681 ALOGV(" create A@H RX Player"); 682 p = createAAH_RXPlayer(); 683 break; 684 case AAH_TX_PLAYER: 685 ALOGV(" create A@H TX Player"); 686 p = createAAH_TXPlayer(); 687 break; 688 default: 689 ALOGE("Unknown player type: %d", playerType); 690 return NULL; 691 } 692 if (p != NULL) { 693 if (p->initCheck() == NO_ERROR) { 694 p->setNotifyCallback(cookie, notifyFunc); 695 } else { 696 p.clear(); 697 } 698 } 699 if (p == NULL) { 700 ALOGE("Failed to create player object"); 701 } 702 return p; 703} 704 705sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) 706{ 707 // determine if we have the right player type 708 sp<MediaPlayerBase> p = mPlayer; 709 if ((p != NULL) && (p->playerType() != playerType)) { 710 ALOGV("delete player"); 711 p.clear(); 712 } 713 if (p == NULL) { 714 p = android::createPlayer(playerType, this, notify); 715 } 716 717 if (p != NULL) { 718 p->setUID(mUID); 719 } 720 721 return p; 722} 723 724sp<MediaPlayerBase> MediaPlayerService::Client::setDataSource_pre( 725 player_type playerType) 726{ 727 ALOGV("player type = %d", playerType); 728 729 // create the right type of player 730 sp<MediaPlayerBase> p = createPlayer(playerType); 731 if (p == NULL) { 732 return p; 733 } 734 735 if (!p->hardwareOutput()) { 736 mAudioOutput = new AudioOutput(mAudioSessionId); 737 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 738 } 739 740 return p; 741} 742 743void MediaPlayerService::Client::setDataSource_post( 744 const sp<MediaPlayerBase>& p, 745 status_t status) 746{ 747 ALOGV(" setDataSource"); 748 mStatus = status; 749 if (mStatus != OK) { 750 ALOGE(" error: %d", mStatus); 751 return; 752 } 753 754 // Set the re-transmission endpoint if one was chosen. 755 if (mRetransmitEndpointValid) { 756 mStatus = p->setRetransmitEndpoint(&mRetransmitEndpoint); 757 if (mStatus != NO_ERROR) { 758 ALOGE("setRetransmitEndpoint error: %d", mStatus); 759 } 760 } 761 762 if (mStatus == OK) { 763 mPlayer = p; 764 } 765} 766 767status_t MediaPlayerService::Client::setDataSource( 768 const char *url, const KeyedVector<String8, String8> *headers) 769{ 770 ALOGV("setDataSource(%s)", url); 771 if (url == NULL) 772 return UNKNOWN_ERROR; 773 774 if ((strncmp(url, "http://", 7) == 0) || 775 (strncmp(url, "https://", 8) == 0) || 776 (strncmp(url, "rtsp://", 7) == 0)) { 777 if (!checkPermission("android.permission.INTERNET")) { 778 return PERMISSION_DENIED; 779 } 780 } 781 782 if (strncmp(url, "content://", 10) == 0) { 783 // get a filedescriptor for the content Uri and 784 // pass it to the setDataSource(fd) method 785 786 String16 url16(url); 787 int fd = android::openContentProviderFile(url16); 788 if (fd < 0) 789 { 790 ALOGE("Couldn't open fd for %s", url); 791 return UNKNOWN_ERROR; 792 } 793 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 794 close(fd); 795 return mStatus; 796 } else { 797 player_type playerType = getPlayerType(url); 798 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 799 if (p == NULL) { 800 return NO_INIT; 801 } 802 803 setDataSource_post(p, p->setDataSource(url, headers)); 804 return mStatus; 805 } 806} 807 808status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 809{ 810 ALOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length); 811 struct stat sb; 812 int ret = fstat(fd, &sb); 813 if (ret != 0) { 814 ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 815 return UNKNOWN_ERROR; 816 } 817 818 ALOGV("st_dev = %llu", sb.st_dev); 819 ALOGV("st_mode = %u", sb.st_mode); 820 ALOGV("st_uid = %lu", sb.st_uid); 821 ALOGV("st_gid = %lu", sb.st_gid); 822 ALOGV("st_size = %llu", sb.st_size); 823 824 if (offset >= sb.st_size) { 825 ALOGE("offset error"); 826 ::close(fd); 827 return UNKNOWN_ERROR; 828 } 829 if (offset + length > sb.st_size) { 830 length = sb.st_size - offset; 831 ALOGV("calculated length = %lld", length); 832 } 833 834 // Until re-transmit functionality is added to the existing core android 835 // players, we use the special AAH TX player whenever we were configured for 836 // retransmission. 837 player_type playerType = getPlayerType(fd, offset, length); 838 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 839 if (p == NULL) { 840 return NO_INIT; 841 } 842 843 // now set data source 844 setDataSource_post(p, p->setDataSource(fd, offset, length)); 845 return mStatus; 846} 847 848status_t MediaPlayerService::Client::setDataSource( 849 const sp<IStreamSource> &source) { 850 // create the right type of player 851 // Until re-transmit functionality is added to the existing core android 852 // players, we use the special AAH TX player whenever we were configured for 853 // retransmission. 854 player_type playerType = getPlayerType(source); 855 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 856 if (p == NULL) { 857 return NO_INIT; 858 } 859 860 // now set data source 861 setDataSource_post(p, p->setDataSource(source)); 862 return mStatus; 863} 864 865void MediaPlayerService::Client::disconnectNativeWindow() { 866 if (mConnectedWindow != NULL) { 867 status_t err = native_window_api_disconnect(mConnectedWindow.get(), 868 NATIVE_WINDOW_API_MEDIA); 869 870 if (err != OK) { 871 ALOGW("native_window_api_disconnect returned an error: %s (%d)", 872 strerror(-err), err); 873 } 874 } 875 mConnectedWindow.clear(); 876} 877 878status_t MediaPlayerService::Client::setVideoSurfaceTexture( 879 const sp<ISurfaceTexture>& surfaceTexture) 880{ 881 ALOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, surfaceTexture.get()); 882 sp<MediaPlayerBase> p = getPlayer(); 883 if (p == 0) return UNKNOWN_ERROR; 884 885 sp<IBinder> binder(surfaceTexture == NULL ? NULL : 886 surfaceTexture->asBinder()); 887 if (mConnectedWindowBinder == binder) { 888 return OK; 889 } 890 891 sp<ANativeWindow> anw; 892 if (surfaceTexture != NULL) { 893 anw = new SurfaceTextureClient(surfaceTexture); 894 status_t err = native_window_api_connect(anw.get(), 895 NATIVE_WINDOW_API_MEDIA); 896 897 if (err != OK) { 898 ALOGE("setVideoSurfaceTexture failed: %d", err); 899 // Note that we must do the reset before disconnecting from the ANW. 900 // Otherwise queue/dequeue calls could be made on the disconnected 901 // ANW, which may result in errors. 902 reset(); 903 904 disconnectNativeWindow(); 905 906 return err; 907 } 908 } 909 910 // Note that we must set the player's new SurfaceTexture before 911 // disconnecting the old one. Otherwise queue/dequeue calls could be made 912 // on the disconnected ANW, which may result in errors. 913 status_t err = p->setVideoSurfaceTexture(surfaceTexture); 914 915 disconnectNativeWindow(); 916 917 mConnectedWindow = anw; 918 919 if (err == OK) { 920 mConnectedWindowBinder = binder; 921 } else { 922 disconnectNativeWindow(); 923 } 924 925 return err; 926} 927 928status_t MediaPlayerService::Client::invoke(const Parcel& request, 929 Parcel *reply) 930{ 931 sp<MediaPlayerBase> p = getPlayer(); 932 if (p == NULL) return UNKNOWN_ERROR; 933 return p->invoke(request, reply); 934} 935 936// This call doesn't need to access the native player. 937status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 938{ 939 status_t status; 940 media::Metadata::Filter allow, drop; 941 942 if (unmarshallFilter(filter, &allow, &status) && 943 unmarshallFilter(filter, &drop, &status)) { 944 Mutex::Autolock lock(mLock); 945 946 mMetadataAllow = allow; 947 mMetadataDrop = drop; 948 } 949 return status; 950} 951 952status_t MediaPlayerService::Client::getMetadata( 953 bool update_only, bool apply_filter, Parcel *reply) 954{ 955 sp<MediaPlayerBase> player = getPlayer(); 956 if (player == 0) return UNKNOWN_ERROR; 957 958 status_t status; 959 // Placeholder for the return code, updated by the caller. 960 reply->writeInt32(-1); 961 962 media::Metadata::Filter ids; 963 964 // We don't block notifications while we fetch the data. We clear 965 // mMetadataUpdated first so we don't lose notifications happening 966 // during the rest of this call. 967 { 968 Mutex::Autolock lock(mLock); 969 if (update_only) { 970 ids = mMetadataUpdated; 971 } 972 mMetadataUpdated.clear(); 973 } 974 975 media::Metadata metadata(reply); 976 977 metadata.appendHeader(); 978 status = player->getMetadata(ids, reply); 979 980 if (status != OK) { 981 metadata.resetParcel(); 982 ALOGE("getMetadata failed %d", status); 983 return status; 984 } 985 986 // FIXME: Implement filtering on the result. Not critical since 987 // filtering takes place on the update notifications already. This 988 // would be when all the metadata are fetch and a filter is set. 989 990 // Everything is fine, update the metadata length. 991 metadata.updateLength(); 992 return OK; 993} 994 995status_t MediaPlayerService::Client::prepareAsync() 996{ 997 ALOGV("[%d] prepareAsync", mConnId); 998 sp<MediaPlayerBase> p = getPlayer(); 999 if (p == 0) return UNKNOWN_ERROR; 1000 status_t ret = p->prepareAsync(); 1001#if CALLBACK_ANTAGONIZER 1002 ALOGD("start Antagonizer"); 1003 if (ret == NO_ERROR) mAntagonizer->start(); 1004#endif 1005 return ret; 1006} 1007 1008status_t MediaPlayerService::Client::start() 1009{ 1010 ALOGV("[%d] start", mConnId); 1011 sp<MediaPlayerBase> p = getPlayer(); 1012 if (p == 0) return UNKNOWN_ERROR; 1013 p->setLooping(mLoop); 1014 return p->start(); 1015} 1016 1017status_t MediaPlayerService::Client::stop() 1018{ 1019 ALOGV("[%d] stop", mConnId); 1020 sp<MediaPlayerBase> p = getPlayer(); 1021 if (p == 0) return UNKNOWN_ERROR; 1022 return p->stop(); 1023} 1024 1025status_t MediaPlayerService::Client::pause() 1026{ 1027 ALOGV("[%d] pause", mConnId); 1028 sp<MediaPlayerBase> p = getPlayer(); 1029 if (p == 0) return UNKNOWN_ERROR; 1030 return p->pause(); 1031} 1032 1033status_t MediaPlayerService::Client::isPlaying(bool* state) 1034{ 1035 *state = false; 1036 sp<MediaPlayerBase> p = getPlayer(); 1037 if (p == 0) return UNKNOWN_ERROR; 1038 *state = p->isPlaying(); 1039 ALOGV("[%d] isPlaying: %d", mConnId, *state); 1040 return NO_ERROR; 1041} 1042 1043status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 1044{ 1045 ALOGV("getCurrentPosition"); 1046 sp<MediaPlayerBase> p = getPlayer(); 1047 if (p == 0) return UNKNOWN_ERROR; 1048 status_t ret = p->getCurrentPosition(msec); 1049 if (ret == NO_ERROR) { 1050 ALOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 1051 } else { 1052 ALOGE("getCurrentPosition returned %d", ret); 1053 } 1054 return ret; 1055} 1056 1057status_t MediaPlayerService::Client::getDuration(int *msec) 1058{ 1059 ALOGV("getDuration"); 1060 sp<MediaPlayerBase> p = getPlayer(); 1061 if (p == 0) return UNKNOWN_ERROR; 1062 status_t ret = p->getDuration(msec); 1063 if (ret == NO_ERROR) { 1064 ALOGV("[%d] getDuration = %d", mConnId, *msec); 1065 } else { 1066 ALOGE("getDuration returned %d", ret); 1067 } 1068 return ret; 1069} 1070 1071status_t MediaPlayerService::Client::setNextPlayer(const sp<IMediaPlayer>& player) { 1072 ALOGV("setNextPlayer"); 1073 Mutex::Autolock l(mLock); 1074 sp<Client> c = static_cast<Client*>(player.get()); 1075 mNextClient = c; 1076 if (mAudioOutput != NULL && c != NULL) { 1077 mAudioOutput->setNextOutput(c->mAudioOutput); 1078 } else { 1079 ALOGE("no current audio output"); 1080 } 1081 return OK; 1082} 1083 1084 1085status_t MediaPlayerService::Client::seekTo(int msec) 1086{ 1087 ALOGV("[%d] seekTo(%d)", mConnId, msec); 1088 sp<MediaPlayerBase> p = getPlayer(); 1089 if (p == 0) return UNKNOWN_ERROR; 1090 return p->seekTo(msec); 1091} 1092 1093status_t MediaPlayerService::Client::reset() 1094{ 1095 ALOGV("[%d] reset", mConnId); 1096 mRetransmitEndpointValid = false; 1097 sp<MediaPlayerBase> p = getPlayer(); 1098 if (p == 0) return UNKNOWN_ERROR; 1099 return p->reset(); 1100} 1101 1102status_t MediaPlayerService::Client::setAudioStreamType(audio_stream_type_t type) 1103{ 1104 ALOGV("[%d] setAudioStreamType(%d)", mConnId, type); 1105 // TODO: for hardware output, call player instead 1106 Mutex::Autolock l(mLock); 1107 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 1108 return NO_ERROR; 1109} 1110 1111status_t MediaPlayerService::Client::setLooping(int loop) 1112{ 1113 ALOGV("[%d] setLooping(%d)", mConnId, loop); 1114 mLoop = loop; 1115 sp<MediaPlayerBase> p = getPlayer(); 1116 if (p != 0) return p->setLooping(loop); 1117 return NO_ERROR; 1118} 1119 1120status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1121{ 1122 ALOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1123 1124 // for hardware output, call player instead 1125 sp<MediaPlayerBase> p = getPlayer(); 1126 { 1127 Mutex::Autolock l(mLock); 1128 if (p != 0 && p->hardwareOutput()) { 1129 MediaPlayerHWInterface* hwp = 1130 reinterpret_cast<MediaPlayerHWInterface*>(p.get()); 1131 return hwp->setVolume(leftVolume, rightVolume); 1132 } else { 1133 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1134 return NO_ERROR; 1135 } 1136 } 1137 1138 return NO_ERROR; 1139} 1140 1141status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level) 1142{ 1143 ALOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level); 1144 Mutex::Autolock l(mLock); 1145 if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level); 1146 return NO_ERROR; 1147} 1148 1149status_t MediaPlayerService::Client::attachAuxEffect(int effectId) 1150{ 1151 ALOGV("[%d] attachAuxEffect(%d)", mConnId, effectId); 1152 Mutex::Autolock l(mLock); 1153 if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId); 1154 return NO_ERROR; 1155} 1156 1157status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) { 1158 ALOGV("[%d] setParameter(%d)", mConnId, key); 1159 sp<MediaPlayerBase> p = getPlayer(); 1160 if (p == 0) return UNKNOWN_ERROR; 1161 return p->setParameter(key, request); 1162} 1163 1164status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) { 1165 ALOGV("[%d] getParameter(%d)", mConnId, key); 1166 sp<MediaPlayerBase> p = getPlayer(); 1167 if (p == 0) return UNKNOWN_ERROR; 1168 return p->getParameter(key, reply); 1169} 1170 1171status_t MediaPlayerService::Client::setRetransmitEndpoint( 1172 const struct sockaddr_in* endpoint) { 1173 1174 if (NULL != endpoint) { 1175 uint32_t a = ntohl(endpoint->sin_addr.s_addr); 1176 uint16_t p = ntohs(endpoint->sin_port); 1177 ALOGV("[%d] setRetransmitEndpoint(%u.%u.%u.%u:%hu)", mConnId, 1178 (a >> 24), (a >> 16) & 0xFF, (a >> 8) & 0xFF, (a & 0xFF), p); 1179 } else { 1180 ALOGV("[%d] setRetransmitEndpoint = <none>", mConnId); 1181 } 1182 1183 sp<MediaPlayerBase> p = getPlayer(); 1184 1185 // Right now, the only valid time to set a retransmit endpoint is before 1186 // player selection has been made (since the presence or absence of a 1187 // retransmit endpoint is going to determine which player is selected during 1188 // setDataSource). 1189 if (p != 0) return INVALID_OPERATION; 1190 1191 if (NULL != endpoint) { 1192 mRetransmitEndpoint = *endpoint; 1193 mRetransmitEndpointValid = true; 1194 } else { 1195 mRetransmitEndpointValid = false; 1196 } 1197 1198 return NO_ERROR; 1199} 1200 1201void MediaPlayerService::Client::notify( 1202 void* cookie, int msg, int ext1, int ext2, const Parcel *obj) 1203{ 1204 Client* client = static_cast<Client*>(cookie); 1205 1206 { 1207 Mutex::Autolock l(client->mLock); 1208 if (msg == MEDIA_PLAYBACK_COMPLETE && client->mNextClient != NULL) { 1209 client->mAudioOutput->switchToNextOutput(); 1210 client->mNextClient->start(); 1211 client->mNextClient->mClient->notify(MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj); 1212 } 1213 } 1214 1215 if (MEDIA_INFO == msg && 1216 MEDIA_INFO_METADATA_UPDATE == ext1) { 1217 const media::Metadata::Type metadata_type = ext2; 1218 1219 if(client->shouldDropMetadata(metadata_type)) { 1220 return; 1221 } 1222 1223 // Update the list of metadata that have changed. getMetadata 1224 // also access mMetadataUpdated and clears it. 1225 client->addNewMetadataUpdate(metadata_type); 1226 } 1227 ALOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1228 client->mClient->notify(msg, ext1, ext2, obj); 1229} 1230 1231 1232bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1233{ 1234 Mutex::Autolock lock(mLock); 1235 1236 if (findMetadata(mMetadataDrop, code)) { 1237 return true; 1238 } 1239 1240 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1241 return false; 1242 } else { 1243 return true; 1244 } 1245} 1246 1247 1248void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1249 Mutex::Autolock lock(mLock); 1250 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1251 mMetadataUpdated.add(metadata_type); 1252 } 1253} 1254 1255#if CALLBACK_ANTAGONIZER 1256const int Antagonizer::interval = 10000; // 10 msecs 1257 1258Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1259 mExit(false), mActive(false), mClient(client), mCb(cb) 1260{ 1261 createThread(callbackThread, this); 1262} 1263 1264void Antagonizer::kill() 1265{ 1266 Mutex::Autolock _l(mLock); 1267 mActive = false; 1268 mExit = true; 1269 mCondition.wait(mLock); 1270} 1271 1272int Antagonizer::callbackThread(void* user) 1273{ 1274 ALOGD("Antagonizer started"); 1275 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1276 while (!p->mExit) { 1277 if (p->mActive) { 1278 ALOGV("send event"); 1279 p->mCb(p->mClient, 0, 0, 0); 1280 } 1281 usleep(interval); 1282 } 1283 Mutex::Autolock _l(p->mLock); 1284 p->mCondition.signal(); 1285 ALOGD("Antagonizer stopped"); 1286 return 0; 1287} 1288#endif 1289 1290static size_t kDefaultHeapSize = 1024 * 1024; // 1MB 1291 1292sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat) 1293{ 1294 ALOGV("decode(%s)", url); 1295 sp<MemoryBase> mem; 1296 sp<MediaPlayerBase> player; 1297 1298 // Protect our precious, precious DRMd ringtones by only allowing 1299 // decoding of http, but not filesystem paths or content Uris. 1300 // If the application wants to decode those, it should open a 1301 // filedescriptor for them and use that. 1302 if (url != NULL && strncmp(url, "http://", 7) != 0) { 1303 ALOGD("Can't decode %s by path, use filedescriptor instead", url); 1304 return mem; 1305 } 1306 1307 player_type playerType = getPlayerType(url); 1308 ALOGV("player type = %d", playerType); 1309 1310 // create the right type of player 1311 sp<AudioCache> cache = new AudioCache(url); 1312 player = android::createPlayer(playerType, cache.get(), cache->notify); 1313 if (player == NULL) goto Exit; 1314 if (player->hardwareOutput()) goto Exit; 1315 1316 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1317 1318 // set data source 1319 if (player->setDataSource(url) != NO_ERROR) goto Exit; 1320 1321 ALOGV("prepare"); 1322 player->prepareAsync(); 1323 1324 ALOGV("wait for prepare"); 1325 if (cache->wait() != NO_ERROR) goto Exit; 1326 1327 ALOGV("start"); 1328 player->start(); 1329 1330 ALOGV("wait for playback complete"); 1331 cache->wait(); 1332 // in case of error, return what was successfully decoded. 1333 if (cache->size() == 0) { 1334 goto Exit; 1335 } 1336 1337 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1338 *pSampleRate = cache->sampleRate(); 1339 *pNumChannels = cache->channelCount(); 1340 *pFormat = cache->format(); 1341 ALOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1342 1343Exit: 1344 if (player != 0) player->reset(); 1345 return mem; 1346} 1347 1348sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat) 1349{ 1350 ALOGV("decode(%d, %lld, %lld)", fd, offset, length); 1351 sp<MemoryBase> mem; 1352 sp<MediaPlayerBase> player; 1353 1354 player_type playerType = getPlayerType(fd, offset, length); 1355 ALOGV("player type = %d", playerType); 1356 1357 // create the right type of player 1358 sp<AudioCache> cache = new AudioCache("decode_fd"); 1359 player = android::createPlayer(playerType, cache.get(), cache->notify); 1360 if (player == NULL) goto Exit; 1361 if (player->hardwareOutput()) goto Exit; 1362 1363 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1364 1365 // set data source 1366 if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit; 1367 1368 ALOGV("prepare"); 1369 player->prepareAsync(); 1370 1371 ALOGV("wait for prepare"); 1372 if (cache->wait() != NO_ERROR) goto Exit; 1373 1374 ALOGV("start"); 1375 player->start(); 1376 1377 ALOGV("wait for playback complete"); 1378 cache->wait(); 1379 // in case of error, return what was successfully decoded. 1380 if (cache->size() == 0) { 1381 goto Exit; 1382 } 1383 1384 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1385 *pSampleRate = cache->sampleRate(); 1386 *pNumChannels = cache->channelCount(); 1387 *pFormat = cache->format(); 1388 ALOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1389 1390Exit: 1391 if (player != 0) player->reset(); 1392 ::close(fd); 1393 return mem; 1394} 1395 1396 1397#undef LOG_TAG 1398#define LOG_TAG "AudioSink" 1399MediaPlayerService::AudioOutput::AudioOutput(int sessionId) 1400 : mCallback(NULL), 1401 mCallbackCookie(NULL), 1402 mCallbackData(NULL), 1403 mSessionId(sessionId) { 1404 ALOGV("AudioOutput(%d)", sessionId); 1405 mTrack = 0; 1406 mRecycledTrack = 0; 1407 mStreamType = AUDIO_STREAM_MUSIC; 1408 mLeftVolume = 1.0; 1409 mRightVolume = 1.0; 1410 mPlaybackRatePermille = 1000; 1411 mSampleRateHz = 0; 1412 mMsecsPerFrame = 0; 1413 mAuxEffectId = 0; 1414 mSendLevel = 0.0; 1415 setMinBufferCount(); 1416} 1417 1418MediaPlayerService::AudioOutput::~AudioOutput() 1419{ 1420 close(); 1421 delete mRecycledTrack; 1422 delete mCallbackData; 1423} 1424 1425void MediaPlayerService::AudioOutput::setMinBufferCount() 1426{ 1427 char value[PROPERTY_VALUE_MAX]; 1428 if (property_get("ro.kernel.qemu", value, 0)) { 1429 mIsOnEmulator = true; 1430 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1431 } 1432} 1433 1434bool MediaPlayerService::AudioOutput::isOnEmulator() 1435{ 1436 setMinBufferCount(); 1437 return mIsOnEmulator; 1438} 1439 1440int MediaPlayerService::AudioOutput::getMinBufferCount() 1441{ 1442 setMinBufferCount(); 1443 return mMinBufferCount; 1444} 1445 1446ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1447{ 1448 if (mTrack == 0) return NO_INIT; 1449 return mTrack->frameCount() * frameSize(); 1450} 1451 1452ssize_t MediaPlayerService::AudioOutput::frameCount() const 1453{ 1454 if (mTrack == 0) return NO_INIT; 1455 return mTrack->frameCount(); 1456} 1457 1458ssize_t MediaPlayerService::AudioOutput::channelCount() const 1459{ 1460 if (mTrack == 0) return NO_INIT; 1461 return mTrack->channelCount(); 1462} 1463 1464ssize_t MediaPlayerService::AudioOutput::frameSize() const 1465{ 1466 if (mTrack == 0) return NO_INIT; 1467 return mTrack->frameSize(); 1468} 1469 1470uint32_t MediaPlayerService::AudioOutput::latency () const 1471{ 1472 if (mTrack == 0) return 0; 1473 return mTrack->latency(); 1474} 1475 1476float MediaPlayerService::AudioOutput::msecsPerFrame() const 1477{ 1478 return mMsecsPerFrame; 1479} 1480 1481status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) 1482{ 1483 if (mTrack == 0) return NO_INIT; 1484 return mTrack->getPosition(position); 1485} 1486 1487status_t MediaPlayerService::AudioOutput::open( 1488 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 1489 audio_format_t format, int bufferCount, 1490 AudioCallback cb, void *cookie) 1491{ 1492 mCallback = cb; 1493 mCallbackCookie = cookie; 1494 1495 // Check argument "bufferCount" against the mininum buffer count 1496 if (bufferCount < mMinBufferCount) { 1497 ALOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount); 1498 bufferCount = mMinBufferCount; 1499 1500 } 1501 ALOGV("open(%u, %d, 0x%x, %d, %d, %d)", sampleRate, channelCount, channelMask, 1502 format, bufferCount, mSessionId); 1503 int afSampleRate; 1504 int afFrameCount; 1505 int frameCount; 1506 1507 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1508 return NO_INIT; 1509 } 1510 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1511 return NO_INIT; 1512 } 1513 1514 frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate; 1515 1516 if (channelMask == CHANNEL_MASK_USE_CHANNEL_ORDER) { 1517 channelMask = audio_channel_out_mask_from_count(channelCount); 1518 if (0 == channelMask) { 1519 ALOGE("open() error, can\'t derive mask for %d audio channels", channelCount); 1520 return NO_INIT; 1521 } 1522 } 1523 if (mRecycledTrack) { 1524 // check if the existing track can be reused as-is, or if a new track needs to be created. 1525 1526 bool reuse = true; 1527 if ((mCallbackData == NULL && mCallback != NULL) || 1528 (mCallbackData != NULL && mCallback == NULL)) { 1529 // recycled track uses callbacks but the caller wants to use writes, or vice versa 1530 ALOGV("can't chain callback and write"); 1531 reuse = false; 1532 } else if ((mRecycledTrack->getSampleRate() != sampleRate) || 1533 (mRecycledTrack->channelCount() != channelCount) || 1534 (mRecycledTrack->frameCount() != frameCount)) { 1535 ALOGV("samplerate, channelcount or framecount differ"); 1536 reuse = false; 1537 } 1538 if (reuse) { 1539 ALOGV("chaining to next output"); 1540 close(); 1541 mTrack = mRecycledTrack; 1542 mRecycledTrack = NULL; 1543 if (mCallbackData != NULL) { 1544 mCallbackData->setOutput(this); 1545 } 1546 return OK; 1547 } 1548 1549 // if we're not going to reuse the track, unblock and flush it 1550 if (mCallbackData != NULL) { 1551 mCallbackData->setOutput(NULL); 1552 mCallbackData->endTrackSwitch(); 1553 } 1554 mRecycledTrack->flush(); 1555 delete mRecycledTrack; 1556 mRecycledTrack = NULL; 1557 delete mCallbackData; 1558 mCallbackData = NULL; 1559 close(); 1560 } 1561 1562 AudioTrack *t; 1563 if (mCallback != NULL) { 1564 mCallbackData = new CallbackData(this); 1565 t = new AudioTrack( 1566 mStreamType, 1567 sampleRate, 1568 format, 1569 channelMask, 1570 frameCount, 1571 AUDIO_POLICY_OUTPUT_FLAG_NONE, 1572 CallbackWrapper, 1573 mCallbackData, 1574 0, // notification frames 1575 mSessionId); 1576 } else { 1577 t = new AudioTrack( 1578 mStreamType, 1579 sampleRate, 1580 format, 1581 channelMask, 1582 frameCount, 1583 AUDIO_POLICY_OUTPUT_FLAG_NONE, 1584 NULL, 1585 NULL, 1586 0, 1587 mSessionId); 1588 } 1589 1590 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1591 ALOGE("Unable to create audio track"); 1592 delete t; 1593 return NO_INIT; 1594 } 1595 1596 ALOGV("setVolume"); 1597 t->setVolume(mLeftVolume, mRightVolume); 1598 1599 mSampleRateHz = sampleRate; 1600 mMsecsPerFrame = mPlaybackRatePermille / (float) sampleRate; 1601 mTrack = t; 1602 1603 status_t res = t->setSampleRate(mPlaybackRatePermille * mSampleRateHz / 1000); 1604 if (res != NO_ERROR) { 1605 return res; 1606 } 1607 t->setAuxEffectSendLevel(mSendLevel); 1608 return t->attachAuxEffect(mAuxEffectId);; 1609} 1610 1611void MediaPlayerService::AudioOutput::start() 1612{ 1613 ALOGV("start"); 1614 if (mCallbackData != NULL) { 1615 mCallbackData->endTrackSwitch(); 1616 } 1617 if (mTrack) { 1618 mTrack->setVolume(mLeftVolume, mRightVolume); 1619 mTrack->setAuxEffectSendLevel(mSendLevel); 1620 mTrack->start(); 1621 } 1622} 1623 1624void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) { 1625 mNextOutput = nextOutput; 1626} 1627 1628 1629void MediaPlayerService::AudioOutput::switchToNextOutput() { 1630 ALOGV("switchToNextOutput"); 1631 if (mNextOutput != NULL) { 1632 if (mCallbackData != NULL) { 1633 mCallbackData->beginTrackSwitch(); 1634 } 1635 delete mNextOutput->mCallbackData; 1636 mNextOutput->mCallbackData = mCallbackData; 1637 mCallbackData = NULL; 1638 mNextOutput->mRecycledTrack = mTrack; 1639 mTrack = NULL; 1640 mNextOutput->mSampleRateHz = mSampleRateHz; 1641 mNextOutput->mMsecsPerFrame = mMsecsPerFrame; 1642 } 1643} 1644 1645ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size) 1646{ 1647 LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 1648 1649 //ALOGV("write(%p, %u)", buffer, size); 1650 if (mTrack) { 1651 ssize_t ret = mTrack->write(buffer, size); 1652 return ret; 1653 } 1654 return NO_INIT; 1655} 1656 1657void MediaPlayerService::AudioOutput::stop() 1658{ 1659 ALOGV("stop"); 1660 if (mTrack) mTrack->stop(); 1661} 1662 1663void MediaPlayerService::AudioOutput::flush() 1664{ 1665 ALOGV("flush"); 1666 if (mTrack) mTrack->flush(); 1667} 1668 1669void MediaPlayerService::AudioOutput::pause() 1670{ 1671 ALOGV("pause"); 1672 if (mTrack) mTrack->pause(); 1673} 1674 1675void MediaPlayerService::AudioOutput::close() 1676{ 1677 ALOGV("close"); 1678 delete mTrack; 1679 mTrack = 0; 1680} 1681 1682void MediaPlayerService::AudioOutput::setVolume(float left, float right) 1683{ 1684 ALOGV("setVolume(%f, %f)", left, right); 1685 mLeftVolume = left; 1686 mRightVolume = right; 1687 if (mTrack) { 1688 mTrack->setVolume(left, right); 1689 } 1690} 1691 1692status_t MediaPlayerService::AudioOutput::setPlaybackRatePermille(int32_t ratePermille) 1693{ 1694 ALOGV("setPlaybackRatePermille(%d)", ratePermille); 1695 status_t res = NO_ERROR; 1696 if (mTrack) { 1697 res = mTrack->setSampleRate(ratePermille * mSampleRateHz / 1000); 1698 } else { 1699 res = NO_INIT; 1700 } 1701 mPlaybackRatePermille = ratePermille; 1702 if (mSampleRateHz != 0) { 1703 mMsecsPerFrame = mPlaybackRatePermille / (float) mSampleRateHz; 1704 } 1705 return res; 1706} 1707 1708status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level) 1709{ 1710 ALOGV("setAuxEffectSendLevel(%f)", level); 1711 mSendLevel = level; 1712 if (mTrack) { 1713 return mTrack->setAuxEffectSendLevel(level); 1714 } 1715 return NO_ERROR; 1716} 1717 1718status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId) 1719{ 1720 ALOGV("attachAuxEffect(%d)", effectId); 1721 mAuxEffectId = effectId; 1722 if (mTrack) { 1723 return mTrack->attachAuxEffect(effectId); 1724 } 1725 return NO_ERROR; 1726} 1727 1728// static 1729void MediaPlayerService::AudioOutput::CallbackWrapper( 1730 int event, void *cookie, void *info) { 1731 //ALOGV("callbackwrapper"); 1732 if (event != AudioTrack::EVENT_MORE_DATA) { 1733 return; 1734 } 1735 1736 CallbackData *data = (CallbackData*)cookie; 1737 data->lock(); 1738 AudioOutput *me = data->getOutput(); 1739 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 1740 if (me == NULL) { 1741 // no output set, likely because the track was scheduled to be reused 1742 // by another player, but the format turned out to be incompatible. 1743 data->unlock(); 1744 buffer->size = 0; 1745 return; 1746 } 1747 1748 size_t actualSize = (*me->mCallback)( 1749 me, buffer->raw, buffer->size, me->mCallbackCookie); 1750 1751 if (actualSize == 0 && buffer->size > 0 && me->mNextOutput == NULL) { 1752 // We've reached EOS but the audio track is not stopped yet, 1753 // keep playing silence. 1754 1755 memset(buffer->raw, 0, buffer->size); 1756 actualSize = buffer->size; 1757 } 1758 1759 buffer->size = actualSize; 1760 data->unlock(); 1761} 1762 1763int MediaPlayerService::AudioOutput::getSessionId() 1764{ 1765 return mSessionId; 1766} 1767 1768#undef LOG_TAG 1769#define LOG_TAG "AudioCache" 1770MediaPlayerService::AudioCache::AudioCache(const char* name) : 1771 mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0), 1772 mError(NO_ERROR), mCommandComplete(false) 1773{ 1774 // create ashmem heap 1775 mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name); 1776} 1777 1778uint32_t MediaPlayerService::AudioCache::latency () const 1779{ 1780 return 0; 1781} 1782 1783float MediaPlayerService::AudioCache::msecsPerFrame() const 1784{ 1785 return mMsecsPerFrame; 1786} 1787 1788status_t MediaPlayerService::AudioCache::getPosition(uint32_t *position) 1789{ 1790 if (position == 0) return BAD_VALUE; 1791 *position = mSize; 1792 return NO_ERROR; 1793} 1794 1795//////////////////////////////////////////////////////////////////////////////// 1796 1797struct CallbackThread : public Thread { 1798 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 1799 MediaPlayerBase::AudioSink::AudioCallback cb, 1800 void *cookie); 1801 1802protected: 1803 virtual ~CallbackThread(); 1804 1805 virtual bool threadLoop(); 1806 1807private: 1808 wp<MediaPlayerBase::AudioSink> mSink; 1809 MediaPlayerBase::AudioSink::AudioCallback mCallback; 1810 void *mCookie; 1811 void *mBuffer; 1812 size_t mBufferSize; 1813 1814 CallbackThread(const CallbackThread &); 1815 CallbackThread &operator=(const CallbackThread &); 1816}; 1817 1818CallbackThread::CallbackThread( 1819 const wp<MediaPlayerBase::AudioSink> &sink, 1820 MediaPlayerBase::AudioSink::AudioCallback cb, 1821 void *cookie) 1822 : mSink(sink), 1823 mCallback(cb), 1824 mCookie(cookie), 1825 mBuffer(NULL), 1826 mBufferSize(0) { 1827} 1828 1829CallbackThread::~CallbackThread() { 1830 if (mBuffer) { 1831 free(mBuffer); 1832 mBuffer = NULL; 1833 } 1834} 1835 1836bool CallbackThread::threadLoop() { 1837 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 1838 if (sink == NULL) { 1839 return false; 1840 } 1841 1842 if (mBuffer == NULL) { 1843 mBufferSize = sink->bufferSize(); 1844 mBuffer = malloc(mBufferSize); 1845 } 1846 1847 size_t actualSize = 1848 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie); 1849 1850 if (actualSize > 0) { 1851 sink->write(mBuffer, actualSize); 1852 } 1853 1854 return true; 1855} 1856 1857//////////////////////////////////////////////////////////////////////////////// 1858 1859status_t MediaPlayerService::AudioCache::open( 1860 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 1861 audio_format_t format, int bufferCount, 1862 AudioCallback cb, void *cookie) 1863{ 1864 ALOGV("open(%u, %d, 0x%x, %d, %d)", sampleRate, channelCount, channelMask, format, bufferCount); 1865 if (mHeap->getHeapID() < 0) { 1866 return NO_INIT; 1867 } 1868 1869 mSampleRate = sampleRate; 1870 mChannelCount = (uint16_t)channelCount; 1871 mFormat = format; 1872 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1873 1874 if (cb != NULL) { 1875 mCallbackThread = new CallbackThread(this, cb, cookie); 1876 } 1877 return NO_ERROR; 1878} 1879 1880void MediaPlayerService::AudioCache::start() { 1881 if (mCallbackThread != NULL) { 1882 mCallbackThread->run("AudioCache callback"); 1883 } 1884} 1885 1886void MediaPlayerService::AudioCache::stop() { 1887 if (mCallbackThread != NULL) { 1888 mCallbackThread->requestExitAndWait(); 1889 } 1890} 1891 1892ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size) 1893{ 1894 ALOGV("write(%p, %u)", buffer, size); 1895 if ((buffer == 0) || (size == 0)) return size; 1896 1897 uint8_t* p = static_cast<uint8_t*>(mHeap->getBase()); 1898 if (p == NULL) return NO_INIT; 1899 p += mSize; 1900 ALOGV("memcpy(%p, %p, %u)", p, buffer, size); 1901 if (mSize + size > mHeap->getSize()) { 1902 ALOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize()); 1903 size = mHeap->getSize() - mSize; 1904 } 1905 memcpy(p, buffer, size); 1906 mSize += size; 1907 return size; 1908} 1909 1910// call with lock held 1911status_t MediaPlayerService::AudioCache::wait() 1912{ 1913 Mutex::Autolock lock(mLock); 1914 while (!mCommandComplete) { 1915 mSignal.wait(mLock); 1916 } 1917 mCommandComplete = false; 1918 1919 if (mError == NO_ERROR) { 1920 ALOGV("wait - success"); 1921 } else { 1922 ALOGV("wait - error"); 1923 } 1924 return mError; 1925} 1926 1927void MediaPlayerService::AudioCache::notify( 1928 void* cookie, int msg, int ext1, int ext2, const Parcel *obj) 1929{ 1930 ALOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2); 1931 AudioCache* p = static_cast<AudioCache*>(cookie); 1932 1933 // ignore buffering messages 1934 switch (msg) 1935 { 1936 case MEDIA_ERROR: 1937 ALOGE("Error %d, %d occurred", ext1, ext2); 1938 p->mError = ext1; 1939 break; 1940 case MEDIA_PREPARED: 1941 ALOGV("prepared"); 1942 break; 1943 case MEDIA_PLAYBACK_COMPLETE: 1944 ALOGV("playback complete"); 1945 break; 1946 default: 1947 ALOGV("ignored"); 1948 return; 1949 } 1950 1951 // wake up thread 1952 Mutex::Autolock lock(p->mLock); 1953 p->mCommandComplete = true; 1954 p->mSignal.signal(); 1955} 1956 1957int MediaPlayerService::AudioCache::getSessionId() 1958{ 1959 return 0; 1960} 1961 1962void MediaPlayerService::addBatteryData(uint32_t params) 1963{ 1964 Mutex::Autolock lock(mLock); 1965 1966 int32_t time = systemTime() / 1000000L; 1967 1968 // change audio output devices. This notification comes from AudioFlinger 1969 if ((params & kBatteryDataSpeakerOn) 1970 || (params & kBatteryDataOtherAudioDeviceOn)) { 1971 1972 int deviceOn[NUM_AUDIO_DEVICES]; 1973 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 1974 deviceOn[i] = 0; 1975 } 1976 1977 if ((params & kBatteryDataSpeakerOn) 1978 && (params & kBatteryDataOtherAudioDeviceOn)) { 1979 deviceOn[SPEAKER_AND_OTHER] = 1; 1980 } else if (params & kBatteryDataSpeakerOn) { 1981 deviceOn[SPEAKER] = 1; 1982 } else { 1983 deviceOn[OTHER_AUDIO_DEVICE] = 1; 1984 } 1985 1986 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 1987 if (mBatteryAudio.deviceOn[i] != deviceOn[i]){ 1988 1989 if (mBatteryAudio.refCount > 0) { // if playing audio 1990 if (!deviceOn[i]) { 1991 mBatteryAudio.lastTime[i] += time; 1992 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 1993 mBatteryAudio.lastTime[i] = 0; 1994 } else { 1995 mBatteryAudio.lastTime[i] = 0 - time; 1996 } 1997 } 1998 1999 mBatteryAudio.deviceOn[i] = deviceOn[i]; 2000 } 2001 } 2002 return; 2003 } 2004 2005 // an sudio stream is started 2006 if (params & kBatteryDataAudioFlingerStart) { 2007 // record the start time only if currently no other audio 2008 // is being played 2009 if (mBatteryAudio.refCount == 0) { 2010 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2011 if (mBatteryAudio.deviceOn[i]) { 2012 mBatteryAudio.lastTime[i] -= time; 2013 } 2014 } 2015 } 2016 2017 mBatteryAudio.refCount ++; 2018 return; 2019 2020 } else if (params & kBatteryDataAudioFlingerStop) { 2021 if (mBatteryAudio.refCount <= 0) { 2022 ALOGW("Battery track warning: refCount is <= 0"); 2023 return; 2024 } 2025 2026 // record the stop time only if currently this is the only 2027 // audio being played 2028 if (mBatteryAudio.refCount == 1) { 2029 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2030 if (mBatteryAudio.deviceOn[i]) { 2031 mBatteryAudio.lastTime[i] += time; 2032 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2033 mBatteryAudio.lastTime[i] = 0; 2034 } 2035 } 2036 } 2037 2038 mBatteryAudio.refCount --; 2039 return; 2040 } 2041 2042 int uid = IPCThreadState::self()->getCallingUid(); 2043 if (uid == AID_MEDIA) { 2044 return; 2045 } 2046 int index = mBatteryData.indexOfKey(uid); 2047 2048 if (index < 0) { // create a new entry for this UID 2049 BatteryUsageInfo info; 2050 info.audioTotalTime = 0; 2051 info.videoTotalTime = 0; 2052 info.audioLastTime = 0; 2053 info.videoLastTime = 0; 2054 info.refCount = 0; 2055 2056 if (mBatteryData.add(uid, info) == NO_MEMORY) { 2057 ALOGE("Battery track error: no memory for new app"); 2058 return; 2059 } 2060 } 2061 2062 BatteryUsageInfo &info = mBatteryData.editValueFor(uid); 2063 2064 if (params & kBatteryDataCodecStarted) { 2065 if (params & kBatteryDataTrackAudio) { 2066 info.audioLastTime -= time; 2067 info.refCount ++; 2068 } 2069 if (params & kBatteryDataTrackVideo) { 2070 info.videoLastTime -= time; 2071 info.refCount ++; 2072 } 2073 } else { 2074 if (info.refCount == 0) { 2075 ALOGW("Battery track warning: refCount is already 0"); 2076 return; 2077 } else if (info.refCount < 0) { 2078 ALOGE("Battery track error: refCount < 0"); 2079 mBatteryData.removeItem(uid); 2080 return; 2081 } 2082 2083 if (params & kBatteryDataTrackAudio) { 2084 info.audioLastTime += time; 2085 info.refCount --; 2086 } 2087 if (params & kBatteryDataTrackVideo) { 2088 info.videoLastTime += time; 2089 info.refCount --; 2090 } 2091 2092 // no stream is being played by this UID 2093 if (info.refCount == 0) { 2094 info.audioTotalTime += info.audioLastTime; 2095 info.audioLastTime = 0; 2096 info.videoTotalTime += info.videoLastTime; 2097 info.videoLastTime = 0; 2098 } 2099 } 2100} 2101 2102status_t MediaPlayerService::pullBatteryData(Parcel* reply) { 2103 Mutex::Autolock lock(mLock); 2104 2105 // audio output devices usage 2106 int32_t time = systemTime() / 1000000L; //in ms 2107 int32_t totalTime; 2108 2109 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2110 totalTime = mBatteryAudio.totalTime[i]; 2111 2112 if (mBatteryAudio.deviceOn[i] 2113 && (mBatteryAudio.lastTime[i] != 0)) { 2114 int32_t tmpTime = mBatteryAudio.lastTime[i] + time; 2115 totalTime += tmpTime; 2116 } 2117 2118 reply->writeInt32(totalTime); 2119 // reset the total time 2120 mBatteryAudio.totalTime[i] = 0; 2121 } 2122 2123 // codec usage 2124 BatteryUsageInfo info; 2125 int size = mBatteryData.size(); 2126 2127 reply->writeInt32(size); 2128 int i = 0; 2129 2130 while (i < size) { 2131 info = mBatteryData.valueAt(i); 2132 2133 reply->writeInt32(mBatteryData.keyAt(i)); //UID 2134 reply->writeInt32(info.audioTotalTime); 2135 reply->writeInt32(info.videoTotalTime); 2136 2137 info.audioTotalTime = 0; 2138 info.videoTotalTime = 0; 2139 2140 // remove the UID entry where no stream is being played 2141 if (info.refCount <= 0) { 2142 mBatteryData.removeItemsAt(i); 2143 size --; 2144 i --; 2145 } 2146 i++; 2147 } 2148 return NO_ERROR; 2149} 2150} // namespace android 2151