MediaPlayerService.cpp revision 81e68448f3361eaf8618930471fdc3c21bdf5cbc
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/Vector.h> 46 47#include <media/IMediaHTTPService.h> 48#include <media/IRemoteDisplay.h> 49#include <media/IRemoteDisplayClient.h> 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#include <media/stagefright/AudioPlayer.h> 58#include <media/stagefright/foundation/ADebug.h> 59 60#include <system/audio.h> 61 62#include <private/android_filesystem_config.h> 63 64#include "ActivityManager.h" 65#include "MediaRecorderClient.h" 66#include "MediaPlayerService.h" 67#include "MetadataRetrieverClient.h" 68#include "MediaPlayerFactory.h" 69 70#include "MidiFile.h" 71#include "TestPlayerStub.h" 72#include "StagefrightPlayer.h" 73#include "nuplayer/NuPlayerDriver.h" 74 75#include <OMX.h> 76 77#include "Crypto.h" 78#include "Drm.h" 79#include "HDCP.h" 80#include "HTTPBase.h" 81#include "RemoteDisplay.h" 82 83namespace { 84using android::media::Metadata; 85using android::status_t; 86using android::OK; 87using android::BAD_VALUE; 88using android::NOT_ENOUGH_DATA; 89using android::Parcel; 90 91// Max number of entries in the filter. 92const int kMaxFilterSize = 64; // I pulled that out of thin air. 93 94// FIXME: Move all the metadata related function in the Metadata.cpp 95 96 97// Unmarshall a filter from a Parcel. 98// Filter format in a parcel: 99// 100// 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 1 101// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 102// | number of entries (n) | 103// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 104// | metadata type 1 | 105// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 106// | metadata type 2 | 107// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 108// .... 109// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 110// | metadata type n | 111// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 112// 113// @param p Parcel that should start with a filter. 114// @param[out] filter On exit contains the list of metadata type to be 115// filtered. 116// @param[out] status On exit contains the status code to be returned. 117// @return true if the parcel starts with a valid filter. 118bool unmarshallFilter(const Parcel& p, 119 Metadata::Filter *filter, 120 status_t *status) 121{ 122 int32_t val; 123 if (p.readInt32(&val) != OK) 124 { 125 ALOGE("Failed to read filter's length"); 126 *status = NOT_ENOUGH_DATA; 127 return false; 128 } 129 130 if( val > kMaxFilterSize || val < 0) 131 { 132 ALOGE("Invalid filter len %d", val); 133 *status = BAD_VALUE; 134 return false; 135 } 136 137 const size_t num = val; 138 139 filter->clear(); 140 filter->setCapacity(num); 141 142 size_t size = num * sizeof(Metadata::Type); 143 144 145 if (p.dataAvail() < size) 146 { 147 ALOGE("Filter too short expected %d but got %d", size, p.dataAvail()); 148 *status = NOT_ENOUGH_DATA; 149 return false; 150 } 151 152 const Metadata::Type *data = 153 static_cast<const Metadata::Type*>(p.readInplace(size)); 154 155 if (NULL == data) 156 { 157 ALOGE("Filter had no data"); 158 *status = BAD_VALUE; 159 return false; 160 } 161 162 // TODO: The stl impl of vector would be more efficient here 163 // because it degenerates into a memcpy on pod types. Try to 164 // replace later or use stl::set. 165 for (size_t i = 0; i < num; ++i) 166 { 167 filter->add(*data); 168 ++data; 169 } 170 *status = OK; 171 return true; 172} 173 174// @param filter Of metadata type. 175// @param val To be searched. 176// @return true if a match was found. 177bool findMetadata(const Metadata::Filter& filter, const int32_t val) 178{ 179 // Deal with empty and ANY right away 180 if (filter.isEmpty()) return false; 181 if (filter[0] == Metadata::kAny) return true; 182 183 return filter.indexOf(val) >= 0; 184} 185 186} // anonymous namespace 187 188 189namespace android { 190 191static bool checkPermission(const char* permissionString) { 192#ifndef HAVE_ANDROID_OS 193 return true; 194#endif 195 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 196 bool ok = checkCallingPermission(String16(permissionString)); 197 if (!ok) ALOGE("Request requires %s", permissionString); 198 return ok; 199} 200 201// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround 202/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4; 203/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false; 204 205void MediaPlayerService::instantiate() { 206 defaultServiceManager()->addService( 207 String16("media.player"), new MediaPlayerService()); 208} 209 210MediaPlayerService::MediaPlayerService() 211{ 212 ALOGV("MediaPlayerService created"); 213 mNextConnId = 1; 214 215 mBatteryAudio.refCount = 0; 216 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 217 mBatteryAudio.deviceOn[i] = 0; 218 mBatteryAudio.lastTime[i] = 0; 219 mBatteryAudio.totalTime[i] = 0; 220 } 221 // speaker is on by default 222 mBatteryAudio.deviceOn[SPEAKER] = 1; 223 224 MediaPlayerFactory::registerBuiltinFactories(); 225} 226 227MediaPlayerService::~MediaPlayerService() 228{ 229 ALOGV("MediaPlayerService destroyed"); 230} 231 232sp<IMediaRecorder> MediaPlayerService::createMediaRecorder() 233{ 234 pid_t pid = IPCThreadState::self()->getCallingPid(); 235 sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid); 236 wp<MediaRecorderClient> w = recorder; 237 Mutex::Autolock lock(mLock); 238 mMediaRecorderClients.add(w); 239 ALOGV("Create new media recorder client from pid %d", pid); 240 return recorder; 241} 242 243void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client) 244{ 245 Mutex::Autolock lock(mLock); 246 mMediaRecorderClients.remove(client); 247 ALOGV("Delete media recorder client"); 248} 249 250sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever() 251{ 252 pid_t pid = IPCThreadState::self()->getCallingPid(); 253 sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid); 254 ALOGV("Create new media retriever from pid %d", pid); 255 return retriever; 256} 257 258sp<IMediaPlayer> MediaPlayerService::create(const sp<IMediaPlayerClient>& client, 259 int audioSessionId) 260{ 261 pid_t pid = IPCThreadState::self()->getCallingPid(); 262 int32_t connId = android_atomic_inc(&mNextConnId); 263 264 sp<Client> c = new Client( 265 this, pid, connId, client, audioSessionId, 266 IPCThreadState::self()->getCallingUid()); 267 268 ALOGV("Create new client(%d) from pid %d, uid %d, ", connId, pid, 269 IPCThreadState::self()->getCallingUid()); 270 271 wp<Client> w = c; 272 { 273 Mutex::Autolock lock(mLock); 274 mClients.add(w); 275 } 276 return c; 277} 278 279sp<IOMX> MediaPlayerService::getOMX() { 280 Mutex::Autolock autoLock(mLock); 281 282 if (mOMX.get() == NULL) { 283 mOMX = new OMX; 284 } 285 286 return mOMX; 287} 288 289sp<ICrypto> MediaPlayerService::makeCrypto() { 290 return new Crypto; 291} 292 293sp<IDrm> MediaPlayerService::makeDrm() { 294 return new Drm; 295} 296 297sp<IHDCP> MediaPlayerService::makeHDCP(bool createEncryptionModule) { 298 return new HDCP(createEncryptionModule); 299} 300 301sp<IRemoteDisplay> MediaPlayerService::listenForRemoteDisplay( 302 const sp<IRemoteDisplayClient>& client, const String8& iface) { 303 if (!checkPermission("android.permission.CONTROL_WIFI_DISPLAY")) { 304 return NULL; 305 } 306 307 return new RemoteDisplay(client, iface.string()); 308} 309 310status_t MediaPlayerService::AudioCache::dump(int fd, const Vector<String16>& args) const 311{ 312 const size_t SIZE = 256; 313 char buffer[SIZE]; 314 String8 result; 315 316 result.append(" AudioCache\n"); 317 if (mHeap != 0) { 318 snprintf(buffer, 255, " heap base(%p), size(%d), flags(%d)\n", 319 mHeap->getBase(), mHeap->getSize(), mHeap->getFlags()); 320 result.append(buffer); 321 } 322 snprintf(buffer, 255, " msec per frame(%f), channel count(%d), format(%d), frame count(%zd)\n", 323 mMsecsPerFrame, mChannelCount, mFormat, mFrameCount); 324 result.append(buffer); 325 snprintf(buffer, 255, " sample rate(%d), size(%d), error(%d), command complete(%s)\n", 326 mSampleRate, mSize, mError, mCommandComplete?"true":"false"); 327 result.append(buffer); 328 ::write(fd, result.string(), result.size()); 329 return NO_ERROR; 330} 331 332status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const 333{ 334 const size_t SIZE = 256; 335 char buffer[SIZE]; 336 String8 result; 337 338 result.append(" AudioOutput\n"); 339 snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", 340 mStreamType, mLeftVolume, mRightVolume); 341 result.append(buffer); 342 snprintf(buffer, 255, " msec per frame(%f), latency (%d)\n", 343 mMsecsPerFrame, (mTrack != 0) ? mTrack->latency() : -1); 344 result.append(buffer); 345 snprintf(buffer, 255, " aux effect id(%d), send level (%f)\n", 346 mAuxEffectId, mSendLevel); 347 result.append(buffer); 348 349 ::write(fd, result.string(), result.size()); 350 if (mTrack != 0) { 351 mTrack->dump(fd, args); 352 } 353 return NO_ERROR; 354} 355 356status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) const 357{ 358 const size_t SIZE = 256; 359 char buffer[SIZE]; 360 String8 result; 361 result.append(" Client\n"); 362 snprintf(buffer, 255, " pid(%d), connId(%d), status(%d), looping(%s)\n", 363 mPid, mConnId, mStatus, mLoop?"true": "false"); 364 result.append(buffer); 365 write(fd, result.string(), result.size()); 366 if (mPlayer != NULL) { 367 mPlayer->dump(fd, args); 368 } 369 if (mAudioOutput != 0) { 370 mAudioOutput->dump(fd, args); 371 } 372 write(fd, "\n", 1); 373 return NO_ERROR; 374} 375 376status_t MediaPlayerService::dump(int fd, const Vector<String16>& args) 377{ 378 const size_t SIZE = 256; 379 char buffer[SIZE]; 380 String8 result; 381 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 382 snprintf(buffer, SIZE, "Permission Denial: " 383 "can't dump MediaPlayerService from pid=%d, uid=%d\n", 384 IPCThreadState::self()->getCallingPid(), 385 IPCThreadState::self()->getCallingUid()); 386 result.append(buffer); 387 } else { 388 Mutex::Autolock lock(mLock); 389 for (int i = 0, n = mClients.size(); i < n; ++i) { 390 sp<Client> c = mClients[i].promote(); 391 if (c != 0) c->dump(fd, args); 392 } 393 if (mMediaRecorderClients.size() == 0) { 394 result.append(" No media recorder client\n\n"); 395 } else { 396 for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) { 397 sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote(); 398 if (c != 0) { 399 snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n", c->mPid); 400 result.append(buffer); 401 write(fd, result.string(), result.size()); 402 result = "\n"; 403 c->dump(fd, args); 404 } 405 } 406 } 407 408 result.append(" Files opened and/or mapped:\n"); 409 snprintf(buffer, SIZE, "/proc/%d/maps", gettid()); 410 FILE *f = fopen(buffer, "r"); 411 if (f) { 412 while (!feof(f)) { 413 fgets(buffer, SIZE, f); 414 if (strstr(buffer, " /storage/") || 415 strstr(buffer, " /system/sounds/") || 416 strstr(buffer, " /data/") || 417 strstr(buffer, " /system/media/")) { 418 result.append(" "); 419 result.append(buffer); 420 } 421 } 422 fclose(f); 423 } else { 424 result.append("couldn't open "); 425 result.append(buffer); 426 result.append("\n"); 427 } 428 429 snprintf(buffer, SIZE, "/proc/%d/fd", gettid()); 430 DIR *d = opendir(buffer); 431 if (d) { 432 struct dirent *ent; 433 while((ent = readdir(d)) != NULL) { 434 if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) { 435 snprintf(buffer, SIZE, "/proc/%d/fd/%s", gettid(), ent->d_name); 436 struct stat s; 437 if (lstat(buffer, &s) == 0) { 438 if ((s.st_mode & S_IFMT) == S_IFLNK) { 439 char linkto[256]; 440 int len = readlink(buffer, linkto, sizeof(linkto)); 441 if(len > 0) { 442 if(len > 255) { 443 linkto[252] = '.'; 444 linkto[253] = '.'; 445 linkto[254] = '.'; 446 linkto[255] = 0; 447 } else { 448 linkto[len] = 0; 449 } 450 if (strstr(linkto, "/storage/") == linkto || 451 strstr(linkto, "/system/sounds/") == linkto || 452 strstr(linkto, "/data/") == linkto || 453 strstr(linkto, "/system/media/") == linkto) { 454 result.append(" "); 455 result.append(buffer); 456 result.append(" -> "); 457 result.append(linkto); 458 result.append("\n"); 459 } 460 } 461 } else { 462 result.append(" unexpected type for "); 463 result.append(buffer); 464 result.append("\n"); 465 } 466 } 467 } 468 } 469 closedir(d); 470 } else { 471 result.append("couldn't open "); 472 result.append(buffer); 473 result.append("\n"); 474 } 475 476 bool dumpMem = false; 477 for (size_t i = 0; i < args.size(); i++) { 478 if (args[i] == String16("-m")) { 479 dumpMem = true; 480 } 481 } 482 if (dumpMem) { 483 dumpMemoryAddresses(fd); 484 } 485 } 486 write(fd, result.string(), result.size()); 487 return NO_ERROR; 488} 489 490void MediaPlayerService::removeClient(wp<Client> client) 491{ 492 Mutex::Autolock lock(mLock); 493 mClients.remove(client); 494} 495 496MediaPlayerService::Client::Client( 497 const sp<MediaPlayerService>& service, pid_t pid, 498 int32_t connId, const sp<IMediaPlayerClient>& client, 499 int audioSessionId, uid_t uid) 500{ 501 ALOGV("Client(%d) constructor", connId); 502 mPid = pid; 503 mConnId = connId; 504 mService = service; 505 mClient = client; 506 mLoop = false; 507 mStatus = NO_INIT; 508 mAudioSessionId = audioSessionId; 509 mUID = uid; 510 mRetransmitEndpointValid = false; 511 512#if CALLBACK_ANTAGONIZER 513 ALOGD("create Antagonizer"); 514 mAntagonizer = new Antagonizer(notify, this); 515#endif 516} 517 518MediaPlayerService::Client::~Client() 519{ 520 ALOGV("Client(%d) destructor pid = %d", mConnId, mPid); 521 mAudioOutput.clear(); 522 wp<Client> client(this); 523 disconnect(); 524 mService->removeClient(client); 525} 526 527void MediaPlayerService::Client::disconnect() 528{ 529 ALOGV("disconnect(%d) from pid %d", mConnId, mPid); 530 // grab local reference and clear main reference to prevent future 531 // access to object 532 sp<MediaPlayerBase> p; 533 { 534 Mutex::Autolock l(mLock); 535 p = mPlayer; 536 mClient.clear(); 537 } 538 539 mPlayer.clear(); 540 541 // clear the notification to prevent callbacks to dead client 542 // and reset the player. We assume the player will serialize 543 // access to itself if necessary. 544 if (p != 0) { 545 p->setNotifyCallback(0, 0); 546#if CALLBACK_ANTAGONIZER 547 ALOGD("kill Antagonizer"); 548 mAntagonizer->kill(); 549#endif 550 p->reset(); 551 } 552 553 disconnectNativeWindow(); 554 555 IPCThreadState::self()->flushCommands(); 556} 557 558sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) 559{ 560 // determine if we have the right player type 561 sp<MediaPlayerBase> p = mPlayer; 562 if ((p != NULL) && (p->playerType() != playerType)) { 563 ALOGV("delete player"); 564 p.clear(); 565 } 566 if (p == NULL) { 567 p = MediaPlayerFactory::createPlayer(playerType, this, notify); 568 } 569 570 if (p != NULL) { 571 p->setUID(mUID); 572 } 573 574 return p; 575} 576 577sp<MediaPlayerBase> MediaPlayerService::Client::setDataSource_pre( 578 player_type playerType) 579{ 580 ALOGV("player type = %d", playerType); 581 582 // create the right type of player 583 sp<MediaPlayerBase> p = createPlayer(playerType); 584 if (p == NULL) { 585 return p; 586 } 587 588 if (!p->hardwareOutput()) { 589 mAudioOutput = new AudioOutput(mAudioSessionId, IPCThreadState::self()->getCallingUid()); 590 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 591 } 592 593 return p; 594} 595 596void MediaPlayerService::Client::setDataSource_post( 597 const sp<MediaPlayerBase>& p, 598 status_t status) 599{ 600 ALOGV(" setDataSource"); 601 mStatus = status; 602 if (mStatus != OK) { 603 ALOGE(" error: %d", mStatus); 604 return; 605 } 606 607 // Set the re-transmission endpoint if one was chosen. 608 if (mRetransmitEndpointValid) { 609 mStatus = p->setRetransmitEndpoint(&mRetransmitEndpoint); 610 if (mStatus != NO_ERROR) { 611 ALOGE("setRetransmitEndpoint error: %d", mStatus); 612 } 613 } 614 615 if (mStatus == OK) { 616 mPlayer = p; 617 } 618} 619 620status_t MediaPlayerService::Client::setDataSource( 621 const sp<IMediaHTTPService> &httpService, 622 const char *url, 623 const KeyedVector<String8, String8> *headers) 624{ 625 ALOGV("setDataSource(%s)", url); 626 if (url == NULL) 627 return UNKNOWN_ERROR; 628 629 if ((strncmp(url, "http://", 7) == 0) || 630 (strncmp(url, "https://", 8) == 0) || 631 (strncmp(url, "rtsp://", 7) == 0)) { 632 if (!checkPermission("android.permission.INTERNET")) { 633 return PERMISSION_DENIED; 634 } 635 } 636 637 if (strncmp(url, "content://", 10) == 0) { 638 // get a filedescriptor for the content Uri and 639 // pass it to the setDataSource(fd) method 640 641 String16 url16(url); 642 int fd = android::openContentProviderFile(url16); 643 if (fd < 0) 644 { 645 ALOGE("Couldn't open fd for %s", url); 646 return UNKNOWN_ERROR; 647 } 648 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 649 close(fd); 650 return mStatus; 651 } else { 652 player_type playerType = MediaPlayerFactory::getPlayerType(this, url); 653 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 654 if (p == NULL) { 655 return NO_INIT; 656 } 657 658 setDataSource_post(p, p->setDataSource(httpService, url, headers)); 659 return mStatus; 660 } 661} 662 663status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 664{ 665 ALOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length); 666 struct stat sb; 667 int ret = fstat(fd, &sb); 668 if (ret != 0) { 669 ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 670 return UNKNOWN_ERROR; 671 } 672 673 ALOGV("st_dev = %llu", sb.st_dev); 674 ALOGV("st_mode = %u", sb.st_mode); 675 ALOGV("st_uid = %lu", sb.st_uid); 676 ALOGV("st_gid = %lu", sb.st_gid); 677 ALOGV("st_size = %llu", sb.st_size); 678 679 if (offset >= sb.st_size) { 680 ALOGE("offset error"); 681 ::close(fd); 682 return UNKNOWN_ERROR; 683 } 684 if (offset + length > sb.st_size) { 685 length = sb.st_size - offset; 686 ALOGV("calculated length = %lld", length); 687 } 688 689 player_type playerType = MediaPlayerFactory::getPlayerType(this, 690 fd, 691 offset, 692 length); 693 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 694 if (p == NULL) { 695 return NO_INIT; 696 } 697 698 // now set data source 699 setDataSource_post(p, p->setDataSource(fd, offset, length)); 700 return mStatus; 701} 702 703status_t MediaPlayerService::Client::setDataSource( 704 const sp<IStreamSource> &source) { 705 // create the right type of player 706 player_type playerType = MediaPlayerFactory::getPlayerType(this, source); 707 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 708 if (p == NULL) { 709 return NO_INIT; 710 } 711 712 // now set data source 713 setDataSource_post(p, p->setDataSource(source)); 714 return mStatus; 715} 716 717void MediaPlayerService::Client::disconnectNativeWindow() { 718 if (mConnectedWindow != NULL) { 719 status_t err = native_window_api_disconnect(mConnectedWindow.get(), 720 NATIVE_WINDOW_API_MEDIA); 721 722 if (err != OK) { 723 ALOGW("native_window_api_disconnect returned an error: %s (%d)", 724 strerror(-err), err); 725 } 726 } 727 mConnectedWindow.clear(); 728} 729 730status_t MediaPlayerService::Client::setVideoSurfaceTexture( 731 const sp<IGraphicBufferProducer>& bufferProducer) 732{ 733 ALOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, bufferProducer.get()); 734 sp<MediaPlayerBase> p = getPlayer(); 735 if (p == 0) return UNKNOWN_ERROR; 736 737 sp<IBinder> binder(bufferProducer == NULL ? NULL : 738 bufferProducer->asBinder()); 739 if (mConnectedWindowBinder == binder) { 740 return OK; 741 } 742 743 sp<ANativeWindow> anw; 744 if (bufferProducer != NULL) { 745 anw = new Surface(bufferProducer, true /* controlledByApp */); 746 status_t err = native_window_api_connect(anw.get(), 747 NATIVE_WINDOW_API_MEDIA); 748 749 if (err != OK) { 750 ALOGE("setVideoSurfaceTexture failed: %d", err); 751 // Note that we must do the reset before disconnecting from the ANW. 752 // Otherwise queue/dequeue calls could be made on the disconnected 753 // ANW, which may result in errors. 754 reset(); 755 756 disconnectNativeWindow(); 757 758 return err; 759 } 760 } 761 762 // Note that we must set the player's new GraphicBufferProducer before 763 // disconnecting the old one. Otherwise queue/dequeue calls could be made 764 // on the disconnected ANW, which may result in errors. 765 status_t err = p->setVideoSurfaceTexture(bufferProducer); 766 767 disconnectNativeWindow(); 768 769 mConnectedWindow = anw; 770 771 if (err == OK) { 772 mConnectedWindowBinder = binder; 773 } else { 774 disconnectNativeWindow(); 775 } 776 777 return err; 778} 779 780status_t MediaPlayerService::Client::invoke(const Parcel& request, 781 Parcel *reply) 782{ 783 sp<MediaPlayerBase> p = getPlayer(); 784 if (p == NULL) return UNKNOWN_ERROR; 785 return p->invoke(request, reply); 786} 787 788// This call doesn't need to access the native player. 789status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 790{ 791 status_t status; 792 media::Metadata::Filter allow, drop; 793 794 if (unmarshallFilter(filter, &allow, &status) && 795 unmarshallFilter(filter, &drop, &status)) { 796 Mutex::Autolock lock(mLock); 797 798 mMetadataAllow = allow; 799 mMetadataDrop = drop; 800 } 801 return status; 802} 803 804status_t MediaPlayerService::Client::getMetadata( 805 bool update_only, bool apply_filter, Parcel *reply) 806{ 807 sp<MediaPlayerBase> player = getPlayer(); 808 if (player == 0) return UNKNOWN_ERROR; 809 810 status_t status; 811 // Placeholder for the return code, updated by the caller. 812 reply->writeInt32(-1); 813 814 media::Metadata::Filter ids; 815 816 // We don't block notifications while we fetch the data. We clear 817 // mMetadataUpdated first so we don't lose notifications happening 818 // during the rest of this call. 819 { 820 Mutex::Autolock lock(mLock); 821 if (update_only) { 822 ids = mMetadataUpdated; 823 } 824 mMetadataUpdated.clear(); 825 } 826 827 media::Metadata metadata(reply); 828 829 metadata.appendHeader(); 830 status = player->getMetadata(ids, reply); 831 832 if (status != OK) { 833 metadata.resetParcel(); 834 ALOGE("getMetadata failed %d", status); 835 return status; 836 } 837 838 // FIXME: Implement filtering on the result. Not critical since 839 // filtering takes place on the update notifications already. This 840 // would be when all the metadata are fetch and a filter is set. 841 842 // Everything is fine, update the metadata length. 843 metadata.updateLength(); 844 return OK; 845} 846 847status_t MediaPlayerService::Client::prepareAsync() 848{ 849 ALOGV("[%d] prepareAsync", mConnId); 850 sp<MediaPlayerBase> p = getPlayer(); 851 if (p == 0) return UNKNOWN_ERROR; 852 status_t ret = p->prepareAsync(); 853#if CALLBACK_ANTAGONIZER 854 ALOGD("start Antagonizer"); 855 if (ret == NO_ERROR) mAntagonizer->start(); 856#endif 857 return ret; 858} 859 860status_t MediaPlayerService::Client::start() 861{ 862 ALOGV("[%d] start", mConnId); 863 sp<MediaPlayerBase> p = getPlayer(); 864 if (p == 0) return UNKNOWN_ERROR; 865 p->setLooping(mLoop); 866 return p->start(); 867} 868 869status_t MediaPlayerService::Client::stop() 870{ 871 ALOGV("[%d] stop", mConnId); 872 sp<MediaPlayerBase> p = getPlayer(); 873 if (p == 0) return UNKNOWN_ERROR; 874 return p->stop(); 875} 876 877status_t MediaPlayerService::Client::pause() 878{ 879 ALOGV("[%d] pause", mConnId); 880 sp<MediaPlayerBase> p = getPlayer(); 881 if (p == 0) return UNKNOWN_ERROR; 882 return p->pause(); 883} 884 885status_t MediaPlayerService::Client::isPlaying(bool* state) 886{ 887 *state = false; 888 sp<MediaPlayerBase> p = getPlayer(); 889 if (p == 0) return UNKNOWN_ERROR; 890 *state = p->isPlaying(); 891 ALOGV("[%d] isPlaying: %d", mConnId, *state); 892 return NO_ERROR; 893} 894 895status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 896{ 897 ALOGV("getCurrentPosition"); 898 sp<MediaPlayerBase> p = getPlayer(); 899 if (p == 0) return UNKNOWN_ERROR; 900 status_t ret = p->getCurrentPosition(msec); 901 if (ret == NO_ERROR) { 902 ALOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 903 } else { 904 ALOGE("getCurrentPosition returned %d", ret); 905 } 906 return ret; 907} 908 909status_t MediaPlayerService::Client::getDuration(int *msec) 910{ 911 ALOGV("getDuration"); 912 sp<MediaPlayerBase> p = getPlayer(); 913 if (p == 0) return UNKNOWN_ERROR; 914 status_t ret = p->getDuration(msec); 915 if (ret == NO_ERROR) { 916 ALOGV("[%d] getDuration = %d", mConnId, *msec); 917 } else { 918 ALOGE("getDuration returned %d", ret); 919 } 920 return ret; 921} 922 923status_t MediaPlayerService::Client::setNextPlayer(const sp<IMediaPlayer>& player) { 924 ALOGV("setNextPlayer"); 925 Mutex::Autolock l(mLock); 926 sp<Client> c = static_cast<Client*>(player.get()); 927 mNextClient = c; 928 929 if (c != NULL) { 930 if (mAudioOutput != NULL) { 931 mAudioOutput->setNextOutput(c->mAudioOutput); 932 } else if ((mPlayer != NULL) && !mPlayer->hardwareOutput()) { 933 ALOGE("no current audio output"); 934 } 935 936 if ((mPlayer != NULL) && (mNextClient->getPlayer() != NULL)) { 937 mPlayer->setNextPlayer(mNextClient->getPlayer()); 938 } 939 } 940 941 return OK; 942} 943 944status_t MediaPlayerService::Client::seekTo(int msec) 945{ 946 ALOGV("[%d] seekTo(%d)", mConnId, msec); 947 sp<MediaPlayerBase> p = getPlayer(); 948 if (p == 0) return UNKNOWN_ERROR; 949 return p->seekTo(msec); 950} 951 952status_t MediaPlayerService::Client::reset() 953{ 954 ALOGV("[%d] reset", mConnId); 955 mRetransmitEndpointValid = false; 956 sp<MediaPlayerBase> p = getPlayer(); 957 if (p == 0) return UNKNOWN_ERROR; 958 return p->reset(); 959} 960 961status_t MediaPlayerService::Client::setAudioStreamType(audio_stream_type_t type) 962{ 963 ALOGV("[%d] setAudioStreamType(%d)", mConnId, type); 964 // TODO: for hardware output, call player instead 965 Mutex::Autolock l(mLock); 966 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 967 return NO_ERROR; 968} 969 970status_t MediaPlayerService::Client::setLooping(int loop) 971{ 972 ALOGV("[%d] setLooping(%d)", mConnId, loop); 973 mLoop = loop; 974 sp<MediaPlayerBase> p = getPlayer(); 975 if (p != 0) return p->setLooping(loop); 976 return NO_ERROR; 977} 978 979status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 980{ 981 ALOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 982 983 // for hardware output, call player instead 984 sp<MediaPlayerBase> p = getPlayer(); 985 { 986 Mutex::Autolock l(mLock); 987 if (p != 0 && p->hardwareOutput()) { 988 MediaPlayerHWInterface* hwp = 989 reinterpret_cast<MediaPlayerHWInterface*>(p.get()); 990 return hwp->setVolume(leftVolume, rightVolume); 991 } else { 992 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 993 return NO_ERROR; 994 } 995 } 996 997 return NO_ERROR; 998} 999 1000status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level) 1001{ 1002 ALOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level); 1003 Mutex::Autolock l(mLock); 1004 if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level); 1005 return NO_ERROR; 1006} 1007 1008status_t MediaPlayerService::Client::attachAuxEffect(int effectId) 1009{ 1010 ALOGV("[%d] attachAuxEffect(%d)", mConnId, effectId); 1011 Mutex::Autolock l(mLock); 1012 if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId); 1013 return NO_ERROR; 1014} 1015 1016status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) { 1017 ALOGV("[%d] setParameter(%d)", mConnId, key); 1018 sp<MediaPlayerBase> p = getPlayer(); 1019 if (p == 0) return UNKNOWN_ERROR; 1020 return p->setParameter(key, request); 1021} 1022 1023status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) { 1024 ALOGV("[%d] getParameter(%d)", mConnId, key); 1025 sp<MediaPlayerBase> p = getPlayer(); 1026 if (p == 0) return UNKNOWN_ERROR; 1027 return p->getParameter(key, reply); 1028} 1029 1030status_t MediaPlayerService::Client::setRetransmitEndpoint( 1031 const struct sockaddr_in* endpoint) { 1032 1033 if (NULL != endpoint) { 1034 uint32_t a = ntohl(endpoint->sin_addr.s_addr); 1035 uint16_t p = ntohs(endpoint->sin_port); 1036 ALOGV("[%d] setRetransmitEndpoint(%u.%u.%u.%u:%hu)", mConnId, 1037 (a >> 24), (a >> 16) & 0xFF, (a >> 8) & 0xFF, (a & 0xFF), p); 1038 } else { 1039 ALOGV("[%d] setRetransmitEndpoint = <none>", mConnId); 1040 } 1041 1042 sp<MediaPlayerBase> p = getPlayer(); 1043 1044 // Right now, the only valid time to set a retransmit endpoint is before 1045 // player selection has been made (since the presence or absence of a 1046 // retransmit endpoint is going to determine which player is selected during 1047 // setDataSource). 1048 if (p != 0) return INVALID_OPERATION; 1049 1050 if (NULL != endpoint) { 1051 mRetransmitEndpoint = *endpoint; 1052 mRetransmitEndpointValid = true; 1053 } else { 1054 mRetransmitEndpointValid = false; 1055 } 1056 1057 return NO_ERROR; 1058} 1059 1060status_t MediaPlayerService::Client::getRetransmitEndpoint( 1061 struct sockaddr_in* endpoint) 1062{ 1063 if (NULL == endpoint) 1064 return BAD_VALUE; 1065 1066 sp<MediaPlayerBase> p = getPlayer(); 1067 1068 if (p != NULL) 1069 return p->getRetransmitEndpoint(endpoint); 1070 1071 if (!mRetransmitEndpointValid) 1072 return NO_INIT; 1073 1074 *endpoint = mRetransmitEndpoint; 1075 1076 return NO_ERROR; 1077} 1078 1079void MediaPlayerService::Client::notify( 1080 void* cookie, int msg, int ext1, int ext2, const Parcel *obj) 1081{ 1082 Client* client = static_cast<Client*>(cookie); 1083 if (client == NULL) { 1084 return; 1085 } 1086 1087 sp<IMediaPlayerClient> c; 1088 { 1089 Mutex::Autolock l(client->mLock); 1090 c = client->mClient; 1091 if (msg == MEDIA_PLAYBACK_COMPLETE && client->mNextClient != NULL) { 1092 if (client->mAudioOutput != NULL) 1093 client->mAudioOutput->switchToNextOutput(); 1094 client->mNextClient->start(); 1095 client->mNextClient->mClient->notify(MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj); 1096 } 1097 } 1098 1099 if (MEDIA_INFO == msg && 1100 MEDIA_INFO_METADATA_UPDATE == ext1) { 1101 const media::Metadata::Type metadata_type = ext2; 1102 1103 if(client->shouldDropMetadata(metadata_type)) { 1104 return; 1105 } 1106 1107 // Update the list of metadata that have changed. getMetadata 1108 // also access mMetadataUpdated and clears it. 1109 client->addNewMetadataUpdate(metadata_type); 1110 } 1111 1112 if (c != NULL) { 1113 ALOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1114 c->notify(msg, ext1, ext2, obj); 1115 } 1116} 1117 1118 1119bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1120{ 1121 Mutex::Autolock lock(mLock); 1122 1123 if (findMetadata(mMetadataDrop, code)) { 1124 return true; 1125 } 1126 1127 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1128 return false; 1129 } else { 1130 return true; 1131 } 1132} 1133 1134 1135void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1136 Mutex::Autolock lock(mLock); 1137 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1138 mMetadataUpdated.add(metadata_type); 1139 } 1140} 1141 1142#if CALLBACK_ANTAGONIZER 1143const int Antagonizer::interval = 10000; // 10 msecs 1144 1145Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1146 mExit(false), mActive(false), mClient(client), mCb(cb) 1147{ 1148 createThread(callbackThread, this); 1149} 1150 1151void Antagonizer::kill() 1152{ 1153 Mutex::Autolock _l(mLock); 1154 mActive = false; 1155 mExit = true; 1156 mCondition.wait(mLock); 1157} 1158 1159int Antagonizer::callbackThread(void* user) 1160{ 1161 ALOGD("Antagonizer started"); 1162 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1163 while (!p->mExit) { 1164 if (p->mActive) { 1165 ALOGV("send event"); 1166 p->mCb(p->mClient, 0, 0, 0); 1167 } 1168 usleep(interval); 1169 } 1170 Mutex::Autolock _l(p->mLock); 1171 p->mCondition.signal(); 1172 ALOGD("Antagonizer stopped"); 1173 return 0; 1174} 1175#endif 1176 1177status_t MediaPlayerService::decode( 1178 const sp<IMediaHTTPService> &httpService, 1179 const char* url, 1180 uint32_t *pSampleRate, 1181 int* pNumChannels, 1182 audio_format_t* pFormat, 1183 const sp<IMemoryHeap>& heap, 1184 size_t *pSize) 1185{ 1186 ALOGV("decode(%s)", url); 1187 sp<MediaPlayerBase> player; 1188 status_t status = BAD_VALUE; 1189 1190 // Protect our precious, precious DRMd ringtones by only allowing 1191 // decoding of http, but not filesystem paths or content Uris. 1192 // If the application wants to decode those, it should open a 1193 // filedescriptor for them and use that. 1194 if (url != NULL && strncmp(url, "http://", 7) != 0) { 1195 ALOGD("Can't decode %s by path, use filedescriptor instead", url); 1196 return BAD_VALUE; 1197 } 1198 1199 player_type playerType = 1200 MediaPlayerFactory::getPlayerType(NULL /* client */, url); 1201 ALOGV("player type = %d", playerType); 1202 1203 // create the right type of player 1204 sp<AudioCache> cache = new AudioCache(heap); 1205 player = MediaPlayerFactory::createPlayer(playerType, cache.get(), cache->notify); 1206 if (player == NULL) goto Exit; 1207 if (player->hardwareOutput()) goto Exit; 1208 1209 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1210 1211 // set data source 1212 if (player->setDataSource(httpService, url) != NO_ERROR) goto Exit; 1213 1214 ALOGV("prepare"); 1215 player->prepareAsync(); 1216 1217 ALOGV("wait for prepare"); 1218 if (cache->wait() != NO_ERROR) goto Exit; 1219 1220 ALOGV("start"); 1221 player->start(); 1222 1223 ALOGV("wait for playback complete"); 1224 cache->wait(); 1225 // in case of error, return what was successfully decoded. 1226 if (cache->size() == 0) { 1227 goto Exit; 1228 } 1229 1230 *pSize = cache->size(); 1231 *pSampleRate = cache->sampleRate(); 1232 *pNumChannels = cache->channelCount(); 1233 *pFormat = cache->format(); 1234 ALOGV("return size %d sampleRate=%u, channelCount = %d, format = %d", 1235 *pSize, *pSampleRate, *pNumChannels, *pFormat); 1236 status = NO_ERROR; 1237 1238Exit: 1239 if (player != 0) player->reset(); 1240 return status; 1241} 1242 1243status_t MediaPlayerService::decode(int fd, int64_t offset, int64_t length, 1244 uint32_t *pSampleRate, int* pNumChannels, 1245 audio_format_t* pFormat, 1246 const sp<IMemoryHeap>& heap, size_t *pSize) 1247{ 1248 ALOGV("decode(%d, %lld, %lld)", fd, offset, length); 1249 sp<MediaPlayerBase> player; 1250 status_t status = BAD_VALUE; 1251 1252 player_type playerType = MediaPlayerFactory::getPlayerType(NULL /* client */, 1253 fd, 1254 offset, 1255 length); 1256 ALOGV("player type = %d", playerType); 1257 1258 // create the right type of player 1259 sp<AudioCache> cache = new AudioCache(heap); 1260 player = MediaPlayerFactory::createPlayer(playerType, cache.get(), cache->notify); 1261 if (player == NULL) goto Exit; 1262 if (player->hardwareOutput()) goto Exit; 1263 1264 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1265 1266 // set data source 1267 if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit; 1268 1269 ALOGV("prepare"); 1270 player->prepareAsync(); 1271 1272 ALOGV("wait for prepare"); 1273 if (cache->wait() != NO_ERROR) goto Exit; 1274 1275 ALOGV("start"); 1276 player->start(); 1277 1278 ALOGV("wait for playback complete"); 1279 cache->wait(); 1280 // in case of error, return what was successfully decoded. 1281 if (cache->size() == 0) { 1282 goto Exit; 1283 } 1284 1285 *pSize = cache->size(); 1286 *pSampleRate = cache->sampleRate(); 1287 *pNumChannels = cache->channelCount(); 1288 *pFormat = cache->format(); 1289 ALOGV("return size %d, sampleRate=%u, channelCount = %d, format = %d", 1290 *pSize, *pSampleRate, *pNumChannels, *pFormat); 1291 status = NO_ERROR; 1292 1293Exit: 1294 if (player != 0) player->reset(); 1295 ::close(fd); 1296 return status; 1297} 1298 1299 1300#undef LOG_TAG 1301#define LOG_TAG "AudioSink" 1302MediaPlayerService::AudioOutput::AudioOutput(int sessionId, int uid) 1303 : mCallback(NULL), 1304 mCallbackCookie(NULL), 1305 mCallbackData(NULL), 1306 mBytesWritten(0), 1307 mSessionId(sessionId), 1308 mUid(uid), 1309 mFlags(AUDIO_OUTPUT_FLAG_NONE) { 1310 ALOGV("AudioOutput(%d)", sessionId); 1311 mStreamType = AUDIO_STREAM_MUSIC; 1312 mLeftVolume = 1.0; 1313 mRightVolume = 1.0; 1314 mPlaybackRatePermille = 1000; 1315 mSampleRateHz = 0; 1316 mMsecsPerFrame = 0; 1317 mAuxEffectId = 0; 1318 mSendLevel = 0.0; 1319 setMinBufferCount(); 1320} 1321 1322MediaPlayerService::AudioOutput::~AudioOutput() 1323{ 1324 close(); 1325 delete mCallbackData; 1326} 1327 1328void MediaPlayerService::AudioOutput::setMinBufferCount() 1329{ 1330 char value[PROPERTY_VALUE_MAX]; 1331 if (property_get("ro.kernel.qemu", value, 0)) { 1332 mIsOnEmulator = true; 1333 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1334 } 1335} 1336 1337bool MediaPlayerService::AudioOutput::isOnEmulator() 1338{ 1339 setMinBufferCount(); 1340 return mIsOnEmulator; 1341} 1342 1343int MediaPlayerService::AudioOutput::getMinBufferCount() 1344{ 1345 setMinBufferCount(); 1346 return mMinBufferCount; 1347} 1348 1349ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1350{ 1351 if (mTrack == 0) return NO_INIT; 1352 return mTrack->frameCount() * frameSize(); 1353} 1354 1355ssize_t MediaPlayerService::AudioOutput::frameCount() const 1356{ 1357 if (mTrack == 0) return NO_INIT; 1358 return mTrack->frameCount(); 1359} 1360 1361ssize_t MediaPlayerService::AudioOutput::channelCount() const 1362{ 1363 if (mTrack == 0) return NO_INIT; 1364 return mTrack->channelCount(); 1365} 1366 1367ssize_t MediaPlayerService::AudioOutput::frameSize() const 1368{ 1369 if (mTrack == 0) return NO_INIT; 1370 return mTrack->frameSize(); 1371} 1372 1373uint32_t MediaPlayerService::AudioOutput::latency () const 1374{ 1375 if (mTrack == 0) return 0; 1376 return mTrack->latency(); 1377} 1378 1379float MediaPlayerService::AudioOutput::msecsPerFrame() const 1380{ 1381 return mMsecsPerFrame; 1382} 1383 1384status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) const 1385{ 1386 if (mTrack == 0) return NO_INIT; 1387 return mTrack->getPosition(position); 1388} 1389 1390status_t MediaPlayerService::AudioOutput::getFramesWritten(uint32_t *frameswritten) const 1391{ 1392 if (mTrack == 0) return NO_INIT; 1393 *frameswritten = mBytesWritten / frameSize(); 1394 return OK; 1395} 1396 1397status_t MediaPlayerService::AudioOutput::setParameters(const String8& keyValuePairs) 1398{ 1399 if (mTrack == 0) return NO_INIT; 1400 return mTrack->setParameters(keyValuePairs); 1401} 1402 1403String8 MediaPlayerService::AudioOutput::getParameters(const String8& keys) 1404{ 1405 if (mTrack == 0) return String8::empty(); 1406 return mTrack->getParameters(keys); 1407} 1408 1409void MediaPlayerService::AudioOutput::deleteRecycledTrack() 1410{ 1411 ALOGV("deleteRecycledTrack"); 1412 1413 if (mRecycledTrack != 0) { 1414 1415 if (mCallbackData != NULL) { 1416 mCallbackData->setOutput(NULL); 1417 mCallbackData->endTrackSwitch(); 1418 } 1419 1420 if ((mRecycledTrack->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) { 1421 mRecycledTrack->flush(); 1422 } 1423 // An offloaded track isn't flushed because the STREAM_END is reported 1424 // slightly prematurely to allow time for the gapless track switch 1425 // but this means that if we decide not to recycle the track there 1426 // could be a small amount of residual data still playing. We leave 1427 // AudioFlinger to drain the track. 1428 1429 mRecycledTrack.clear(); 1430 delete mCallbackData; 1431 mCallbackData = NULL; 1432 close(); 1433 } 1434} 1435 1436status_t MediaPlayerService::AudioOutput::open( 1437 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 1438 audio_format_t format, int bufferCount, 1439 AudioCallback cb, void *cookie, 1440 audio_output_flags_t flags, 1441 const audio_offload_info_t *offloadInfo) 1442{ 1443 mCallback = cb; 1444 mCallbackCookie = cookie; 1445 1446 // Check argument "bufferCount" against the mininum buffer count 1447 if (bufferCount < mMinBufferCount) { 1448 ALOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount); 1449 bufferCount = mMinBufferCount; 1450 1451 } 1452 ALOGV("open(%u, %d, 0x%x, 0x%x, %d, %d 0x%x)", sampleRate, channelCount, channelMask, 1453 format, bufferCount, mSessionId, flags); 1454 uint32_t afSampleRate; 1455 size_t afFrameCount; 1456 uint32_t frameCount; 1457 1458 // offloading is only supported in callback mode for now. 1459 // offloadInfo must be present if offload flag is set 1460 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) && 1461 ((cb == NULL) || (offloadInfo == NULL))) { 1462 return BAD_VALUE; 1463 } 1464 1465 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1466 frameCount = 0; // AudioTrack will get frame count from AudioFlinger 1467 } else { 1468 uint32_t afSampleRate; 1469 size_t afFrameCount; 1470 1471 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1472 return NO_INIT; 1473 } 1474 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1475 return NO_INIT; 1476 } 1477 1478 frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate; 1479 } 1480 1481 if (channelMask == CHANNEL_MASK_USE_CHANNEL_ORDER) { 1482 channelMask = audio_channel_out_mask_from_count(channelCount); 1483 if (0 == channelMask) { 1484 ALOGE("open() error, can\'t derive mask for %d audio channels", channelCount); 1485 return NO_INIT; 1486 } 1487 } 1488 1489 // Check whether we can recycle the track 1490 bool reuse = false; 1491 bool bothOffloaded = false; 1492 1493 if (mRecycledTrack != 0) { 1494 // check whether we are switching between two offloaded tracks 1495 bothOffloaded = (flags & mRecycledTrack->getFlags() 1496 & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; 1497 1498 // check if the existing track can be reused as-is, or if a new track needs to be created. 1499 reuse = true; 1500 1501 if ((mCallbackData == NULL && mCallback != NULL) || 1502 (mCallbackData != NULL && mCallback == NULL)) { 1503 // recycled track uses callbacks but the caller wants to use writes, or vice versa 1504 ALOGV("can't chain callback and write"); 1505 reuse = false; 1506 } else if ((mRecycledTrack->getSampleRate() != sampleRate) || 1507 (mRecycledTrack->channelCount() != (uint32_t)channelCount) ) { 1508 ALOGV("samplerate, channelcount differ: %u/%u Hz, %u/%d ch", 1509 mRecycledTrack->getSampleRate(), sampleRate, 1510 mRecycledTrack->channelCount(), channelCount); 1511 reuse = false; 1512 } else if (flags != mFlags) { 1513 ALOGV("output flags differ %08x/%08x", flags, mFlags); 1514 reuse = false; 1515 } else if (mRecycledTrack->format() != format) { 1516 reuse = false; 1517 } 1518 } else { 1519 ALOGV("no track available to recycle"); 1520 } 1521 1522 ALOGV_IF(bothOffloaded, "both tracks offloaded"); 1523 1524 // If we can't recycle and both tracks are offloaded 1525 // we must close the previous output before opening a new one 1526 if (bothOffloaded && !reuse) { 1527 ALOGV("both offloaded and not recycling"); 1528 deleteRecycledTrack(); 1529 } 1530 1531 sp<AudioTrack> t; 1532 CallbackData *newcbd = NULL; 1533 1534 // We don't attempt to create a new track if we are recycling an 1535 // offloaded track. But, if we are recycling a non-offloaded or we 1536 // are switching where one is offloaded and one isn't then we create 1537 // the new track in advance so that we can read additional stream info 1538 1539 if (!(reuse && bothOffloaded)) { 1540 ALOGV("creating new AudioTrack"); 1541 1542 if (mCallback != NULL) { 1543 newcbd = new CallbackData(this); 1544 t = new AudioTrack( 1545 mStreamType, 1546 sampleRate, 1547 format, 1548 channelMask, 1549 frameCount, 1550 flags, 1551 CallbackWrapper, 1552 newcbd, 1553 0, // notification frames 1554 mSessionId, 1555 AudioTrack::TRANSFER_CALLBACK, 1556 offloadInfo, 1557 mUid); 1558 } else { 1559 t = new AudioTrack( 1560 mStreamType, 1561 sampleRate, 1562 format, 1563 channelMask, 1564 frameCount, 1565 flags, 1566 NULL, // callback 1567 NULL, // user data 1568 0, // notification frames 1569 mSessionId, 1570 AudioTrack::TRANSFER_DEFAULT, 1571 NULL, // offload info 1572 mUid); 1573 } 1574 1575 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1576 ALOGE("Unable to create audio track"); 1577 delete newcbd; 1578 return NO_INIT; 1579 } 1580 } 1581 1582 if (reuse) { 1583 CHECK(mRecycledTrack != NULL); 1584 1585 if (!bothOffloaded) { 1586 if (mRecycledTrack->frameCount() != t->frameCount()) { 1587 ALOGV("framecount differs: %u/%u frames", 1588 mRecycledTrack->frameCount(), t->frameCount()); 1589 reuse = false; 1590 } 1591 } 1592 1593 if (reuse) { 1594 ALOGV("chaining to next output and recycling track"); 1595 close(); 1596 mTrack = mRecycledTrack; 1597 mRecycledTrack.clear(); 1598 if (mCallbackData != NULL) { 1599 mCallbackData->setOutput(this); 1600 } 1601 delete newcbd; 1602 return OK; 1603 } 1604 } 1605 1606 // we're not going to reuse the track, unblock and flush it 1607 // this was done earlier if both tracks are offloaded 1608 if (!bothOffloaded) { 1609 deleteRecycledTrack(); 1610 } 1611 1612 CHECK((t != NULL) && ((mCallback == NULL) || (newcbd != NULL))); 1613 1614 mCallbackData = newcbd; 1615 ALOGV("setVolume"); 1616 t->setVolume(mLeftVolume, mRightVolume); 1617 1618 mSampleRateHz = sampleRate; 1619 mFlags = flags; 1620 mMsecsPerFrame = mPlaybackRatePermille / (float) sampleRate; 1621 uint32_t pos; 1622 if (t->getPosition(&pos) == OK) { 1623 mBytesWritten = uint64_t(pos) * t->frameSize(); 1624 } 1625 mTrack = t; 1626 1627 status_t res = NO_ERROR; 1628 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) { 1629 res = t->setSampleRate(mPlaybackRatePermille * mSampleRateHz / 1000); 1630 if (res == NO_ERROR) { 1631 t->setAuxEffectSendLevel(mSendLevel); 1632 res = t->attachAuxEffect(mAuxEffectId); 1633 } 1634 } 1635 ALOGV("open() DONE status %d", res); 1636 return res; 1637} 1638 1639status_t MediaPlayerService::AudioOutput::start() 1640{ 1641 ALOGV("start"); 1642 if (mCallbackData != NULL) { 1643 mCallbackData->endTrackSwitch(); 1644 } 1645 if (mTrack != 0) { 1646 mTrack->setVolume(mLeftVolume, mRightVolume); 1647 mTrack->setAuxEffectSendLevel(mSendLevel); 1648 return mTrack->start(); 1649 } 1650 return NO_INIT; 1651} 1652 1653void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) { 1654 mNextOutput = nextOutput; 1655} 1656 1657 1658void MediaPlayerService::AudioOutput::switchToNextOutput() { 1659 ALOGV("switchToNextOutput"); 1660 if (mNextOutput != NULL) { 1661 if (mCallbackData != NULL) { 1662 mCallbackData->beginTrackSwitch(); 1663 } 1664 delete mNextOutput->mCallbackData; 1665 mNextOutput->mCallbackData = mCallbackData; 1666 mCallbackData = NULL; 1667 mNextOutput->mRecycledTrack = mTrack; 1668 mTrack.clear(); 1669 mNextOutput->mSampleRateHz = mSampleRateHz; 1670 mNextOutput->mMsecsPerFrame = mMsecsPerFrame; 1671 mNextOutput->mBytesWritten = mBytesWritten; 1672 mNextOutput->mFlags = mFlags; 1673 } 1674} 1675 1676ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size) 1677{ 1678 LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 1679 1680 //ALOGV("write(%p, %u)", buffer, size); 1681 if (mTrack != 0) { 1682 ssize_t ret = mTrack->write(buffer, size); 1683 mBytesWritten += ret; 1684 return ret; 1685 } 1686 return NO_INIT; 1687} 1688 1689void MediaPlayerService::AudioOutput::stop() 1690{ 1691 ALOGV("stop"); 1692 if (mTrack != 0) mTrack->stop(); 1693} 1694 1695void MediaPlayerService::AudioOutput::flush() 1696{ 1697 ALOGV("flush"); 1698 if (mTrack != 0) mTrack->flush(); 1699} 1700 1701void MediaPlayerService::AudioOutput::pause() 1702{ 1703 ALOGV("pause"); 1704 if (mTrack != 0) mTrack->pause(); 1705} 1706 1707void MediaPlayerService::AudioOutput::close() 1708{ 1709 ALOGV("close"); 1710 mTrack.clear(); 1711} 1712 1713void MediaPlayerService::AudioOutput::setVolume(float left, float right) 1714{ 1715 ALOGV("setVolume(%f, %f)", left, right); 1716 mLeftVolume = left; 1717 mRightVolume = right; 1718 if (mTrack != 0) { 1719 mTrack->setVolume(left, right); 1720 } 1721} 1722 1723status_t MediaPlayerService::AudioOutput::setPlaybackRatePermille(int32_t ratePermille) 1724{ 1725 ALOGV("setPlaybackRatePermille(%d)", ratePermille); 1726 status_t res = NO_ERROR; 1727 if (mTrack != 0) { 1728 res = mTrack->setSampleRate(ratePermille * mSampleRateHz / 1000); 1729 } else { 1730 res = NO_INIT; 1731 } 1732 mPlaybackRatePermille = ratePermille; 1733 if (mSampleRateHz != 0) { 1734 mMsecsPerFrame = mPlaybackRatePermille / (float) mSampleRateHz; 1735 } 1736 return res; 1737} 1738 1739status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level) 1740{ 1741 ALOGV("setAuxEffectSendLevel(%f)", level); 1742 mSendLevel = level; 1743 if (mTrack != 0) { 1744 return mTrack->setAuxEffectSendLevel(level); 1745 } 1746 return NO_ERROR; 1747} 1748 1749status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId) 1750{ 1751 ALOGV("attachAuxEffect(%d)", effectId); 1752 mAuxEffectId = effectId; 1753 if (mTrack != 0) { 1754 return mTrack->attachAuxEffect(effectId); 1755 } 1756 return NO_ERROR; 1757} 1758 1759// static 1760void MediaPlayerService::AudioOutput::CallbackWrapper( 1761 int event, void *cookie, void *info) { 1762 //ALOGV("callbackwrapper"); 1763 CallbackData *data = (CallbackData*)cookie; 1764 data->lock(); 1765 AudioOutput *me = data->getOutput(); 1766 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 1767 if (me == NULL) { 1768 // no output set, likely because the track was scheduled to be reused 1769 // by another player, but the format turned out to be incompatible. 1770 data->unlock(); 1771 if (buffer != NULL) { 1772 buffer->size = 0; 1773 } 1774 return; 1775 } 1776 1777 switch(event) { 1778 case AudioTrack::EVENT_MORE_DATA: { 1779 size_t actualSize = (*me->mCallback)( 1780 me, buffer->raw, buffer->size, me->mCallbackCookie, 1781 CB_EVENT_FILL_BUFFER); 1782 1783 if (actualSize == 0 && buffer->size > 0 && me->mNextOutput == NULL) { 1784 // We've reached EOS but the audio track is not stopped yet, 1785 // keep playing silence. 1786 1787 memset(buffer->raw, 0, buffer->size); 1788 actualSize = buffer->size; 1789 } 1790 1791 buffer->size = actualSize; 1792 } break; 1793 1794 1795 case AudioTrack::EVENT_STREAM_END: 1796 ALOGV("callbackwrapper: deliver EVENT_STREAM_END"); 1797 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 1798 me->mCallbackCookie, CB_EVENT_STREAM_END); 1799 break; 1800 1801 case AudioTrack::EVENT_NEW_IAUDIOTRACK : 1802 ALOGV("callbackwrapper: deliver EVENT_TEAR_DOWN"); 1803 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 1804 me->mCallbackCookie, CB_EVENT_TEAR_DOWN); 1805 break; 1806 1807 default: 1808 ALOGE("received unknown event type: %d inside CallbackWrapper !", event); 1809 } 1810 1811 data->unlock(); 1812} 1813 1814int MediaPlayerService::AudioOutput::getSessionId() const 1815{ 1816 return mSessionId; 1817} 1818 1819uint32_t MediaPlayerService::AudioOutput::getSampleRate() const 1820{ 1821 if (mTrack == 0) return 0; 1822 return mTrack->getSampleRate(); 1823} 1824 1825#undef LOG_TAG 1826#define LOG_TAG "AudioCache" 1827MediaPlayerService::AudioCache::AudioCache(const sp<IMemoryHeap>& heap) : 1828 mHeap(heap), mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0), 1829 mError(NO_ERROR), mCommandComplete(false) 1830{ 1831} 1832 1833uint32_t MediaPlayerService::AudioCache::latency () const 1834{ 1835 return 0; 1836} 1837 1838float MediaPlayerService::AudioCache::msecsPerFrame() const 1839{ 1840 return mMsecsPerFrame; 1841} 1842 1843status_t MediaPlayerService::AudioCache::getPosition(uint32_t *position) const 1844{ 1845 if (position == 0) return BAD_VALUE; 1846 *position = mSize; 1847 return NO_ERROR; 1848} 1849 1850status_t MediaPlayerService::AudioCache::getFramesWritten(uint32_t *written) const 1851{ 1852 if (written == 0) return BAD_VALUE; 1853 *written = mSize; 1854 return NO_ERROR; 1855} 1856 1857//////////////////////////////////////////////////////////////////////////////// 1858 1859struct CallbackThread : public Thread { 1860 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 1861 MediaPlayerBase::AudioSink::AudioCallback cb, 1862 void *cookie); 1863 1864protected: 1865 virtual ~CallbackThread(); 1866 1867 virtual bool threadLoop(); 1868 1869private: 1870 wp<MediaPlayerBase::AudioSink> mSink; 1871 MediaPlayerBase::AudioSink::AudioCallback mCallback; 1872 void *mCookie; 1873 void *mBuffer; 1874 size_t mBufferSize; 1875 1876 CallbackThread(const CallbackThread &); 1877 CallbackThread &operator=(const CallbackThread &); 1878}; 1879 1880CallbackThread::CallbackThread( 1881 const wp<MediaPlayerBase::AudioSink> &sink, 1882 MediaPlayerBase::AudioSink::AudioCallback cb, 1883 void *cookie) 1884 : mSink(sink), 1885 mCallback(cb), 1886 mCookie(cookie), 1887 mBuffer(NULL), 1888 mBufferSize(0) { 1889} 1890 1891CallbackThread::~CallbackThread() { 1892 if (mBuffer) { 1893 free(mBuffer); 1894 mBuffer = NULL; 1895 } 1896} 1897 1898bool CallbackThread::threadLoop() { 1899 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 1900 if (sink == NULL) { 1901 return false; 1902 } 1903 1904 if (mBuffer == NULL) { 1905 mBufferSize = sink->bufferSize(); 1906 mBuffer = malloc(mBufferSize); 1907 } 1908 1909 size_t actualSize = 1910 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie, 1911 MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER); 1912 1913 if (actualSize > 0) { 1914 sink->write(mBuffer, actualSize); 1915 } 1916 1917 return true; 1918} 1919 1920//////////////////////////////////////////////////////////////////////////////// 1921 1922status_t MediaPlayerService::AudioCache::open( 1923 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 1924 audio_format_t format, int bufferCount, 1925 AudioCallback cb, void *cookie, audio_output_flags_t flags, 1926 const audio_offload_info_t *offloadInfo) 1927{ 1928 ALOGV("open(%u, %d, 0x%x, %d, %d)", sampleRate, channelCount, channelMask, format, bufferCount); 1929 if (mHeap->getHeapID() < 0) { 1930 return NO_INIT; 1931 } 1932 1933 mSampleRate = sampleRate; 1934 mChannelCount = (uint16_t)channelCount; 1935 mFormat = format; 1936 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1937 1938 if (cb != NULL) { 1939 mCallbackThread = new CallbackThread(this, cb, cookie); 1940 } 1941 return NO_ERROR; 1942} 1943 1944status_t MediaPlayerService::AudioCache::start() { 1945 if (mCallbackThread != NULL) { 1946 mCallbackThread->run("AudioCache callback"); 1947 } 1948 return NO_ERROR; 1949} 1950 1951void MediaPlayerService::AudioCache::stop() { 1952 if (mCallbackThread != NULL) { 1953 mCallbackThread->requestExitAndWait(); 1954 } 1955} 1956 1957ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size) 1958{ 1959 ALOGV("write(%p, %u)", buffer, size); 1960 if ((buffer == 0) || (size == 0)) return size; 1961 1962 uint8_t* p = static_cast<uint8_t*>(mHeap->getBase()); 1963 if (p == NULL) return NO_INIT; 1964 p += mSize; 1965 ALOGV("memcpy(%p, %p, %u)", p, buffer, size); 1966 if (mSize + size > mHeap->getSize()) { 1967 ALOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize()); 1968 size = mHeap->getSize() - mSize; 1969 } 1970 memcpy(p, buffer, size); 1971 mSize += size; 1972 return size; 1973} 1974 1975// call with lock held 1976status_t MediaPlayerService::AudioCache::wait() 1977{ 1978 Mutex::Autolock lock(mLock); 1979 while (!mCommandComplete) { 1980 mSignal.wait(mLock); 1981 } 1982 mCommandComplete = false; 1983 1984 if (mError == NO_ERROR) { 1985 ALOGV("wait - success"); 1986 } else { 1987 ALOGV("wait - error"); 1988 } 1989 return mError; 1990} 1991 1992void MediaPlayerService::AudioCache::notify( 1993 void* cookie, int msg, int ext1, int ext2, const Parcel *obj) 1994{ 1995 ALOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2); 1996 AudioCache* p = static_cast<AudioCache*>(cookie); 1997 1998 // ignore buffering messages 1999 switch (msg) 2000 { 2001 case MEDIA_ERROR: 2002 ALOGE("Error %d, %d occurred", ext1, ext2); 2003 p->mError = ext1; 2004 break; 2005 case MEDIA_PREPARED: 2006 ALOGV("prepared"); 2007 break; 2008 case MEDIA_PLAYBACK_COMPLETE: 2009 ALOGV("playback complete"); 2010 break; 2011 default: 2012 ALOGV("ignored"); 2013 return; 2014 } 2015 2016 // wake up thread 2017 Mutex::Autolock lock(p->mLock); 2018 p->mCommandComplete = true; 2019 p->mSignal.signal(); 2020} 2021 2022int MediaPlayerService::AudioCache::getSessionId() const 2023{ 2024 return 0; 2025} 2026 2027uint32_t MediaPlayerService::AudioCache::getSampleRate() const 2028{ 2029 if (mMsecsPerFrame == 0) { 2030 return 0; 2031 } 2032 return (uint32_t)(1.e3 / mMsecsPerFrame); 2033} 2034 2035void MediaPlayerService::addBatteryData(uint32_t params) 2036{ 2037 Mutex::Autolock lock(mLock); 2038 2039 int32_t time = systemTime() / 1000000L; 2040 2041 // change audio output devices. This notification comes from AudioFlinger 2042 if ((params & kBatteryDataSpeakerOn) 2043 || (params & kBatteryDataOtherAudioDeviceOn)) { 2044 2045 int deviceOn[NUM_AUDIO_DEVICES]; 2046 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2047 deviceOn[i] = 0; 2048 } 2049 2050 if ((params & kBatteryDataSpeakerOn) 2051 && (params & kBatteryDataOtherAudioDeviceOn)) { 2052 deviceOn[SPEAKER_AND_OTHER] = 1; 2053 } else if (params & kBatteryDataSpeakerOn) { 2054 deviceOn[SPEAKER] = 1; 2055 } else { 2056 deviceOn[OTHER_AUDIO_DEVICE] = 1; 2057 } 2058 2059 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2060 if (mBatteryAudio.deviceOn[i] != deviceOn[i]){ 2061 2062 if (mBatteryAudio.refCount > 0) { // if playing audio 2063 if (!deviceOn[i]) { 2064 mBatteryAudio.lastTime[i] += time; 2065 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2066 mBatteryAudio.lastTime[i] = 0; 2067 } else { 2068 mBatteryAudio.lastTime[i] = 0 - time; 2069 } 2070 } 2071 2072 mBatteryAudio.deviceOn[i] = deviceOn[i]; 2073 } 2074 } 2075 return; 2076 } 2077 2078 // an sudio stream is started 2079 if (params & kBatteryDataAudioFlingerStart) { 2080 // record the start time only if currently no other audio 2081 // is being played 2082 if (mBatteryAudio.refCount == 0) { 2083 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2084 if (mBatteryAudio.deviceOn[i]) { 2085 mBatteryAudio.lastTime[i] -= time; 2086 } 2087 } 2088 } 2089 2090 mBatteryAudio.refCount ++; 2091 return; 2092 2093 } else if (params & kBatteryDataAudioFlingerStop) { 2094 if (mBatteryAudio.refCount <= 0) { 2095 ALOGW("Battery track warning: refCount is <= 0"); 2096 return; 2097 } 2098 2099 // record the stop time only if currently this is the only 2100 // audio being played 2101 if (mBatteryAudio.refCount == 1) { 2102 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2103 if (mBatteryAudio.deviceOn[i]) { 2104 mBatteryAudio.lastTime[i] += time; 2105 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2106 mBatteryAudio.lastTime[i] = 0; 2107 } 2108 } 2109 } 2110 2111 mBatteryAudio.refCount --; 2112 return; 2113 } 2114 2115 int uid = IPCThreadState::self()->getCallingUid(); 2116 if (uid == AID_MEDIA) { 2117 return; 2118 } 2119 int index = mBatteryData.indexOfKey(uid); 2120 2121 if (index < 0) { // create a new entry for this UID 2122 BatteryUsageInfo info; 2123 info.audioTotalTime = 0; 2124 info.videoTotalTime = 0; 2125 info.audioLastTime = 0; 2126 info.videoLastTime = 0; 2127 info.refCount = 0; 2128 2129 if (mBatteryData.add(uid, info) == NO_MEMORY) { 2130 ALOGE("Battery track error: no memory for new app"); 2131 return; 2132 } 2133 } 2134 2135 BatteryUsageInfo &info = mBatteryData.editValueFor(uid); 2136 2137 if (params & kBatteryDataCodecStarted) { 2138 if (params & kBatteryDataTrackAudio) { 2139 info.audioLastTime -= time; 2140 info.refCount ++; 2141 } 2142 if (params & kBatteryDataTrackVideo) { 2143 info.videoLastTime -= time; 2144 info.refCount ++; 2145 } 2146 } else { 2147 if (info.refCount == 0) { 2148 ALOGW("Battery track warning: refCount is already 0"); 2149 return; 2150 } else if (info.refCount < 0) { 2151 ALOGE("Battery track error: refCount < 0"); 2152 mBatteryData.removeItem(uid); 2153 return; 2154 } 2155 2156 if (params & kBatteryDataTrackAudio) { 2157 info.audioLastTime += time; 2158 info.refCount --; 2159 } 2160 if (params & kBatteryDataTrackVideo) { 2161 info.videoLastTime += time; 2162 info.refCount --; 2163 } 2164 2165 // no stream is being played by this UID 2166 if (info.refCount == 0) { 2167 info.audioTotalTime += info.audioLastTime; 2168 info.audioLastTime = 0; 2169 info.videoTotalTime += info.videoLastTime; 2170 info.videoLastTime = 0; 2171 } 2172 } 2173} 2174 2175status_t MediaPlayerService::pullBatteryData(Parcel* reply) { 2176 Mutex::Autolock lock(mLock); 2177 2178 // audio output devices usage 2179 int32_t time = systemTime() / 1000000L; //in ms 2180 int32_t totalTime; 2181 2182 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2183 totalTime = mBatteryAudio.totalTime[i]; 2184 2185 if (mBatteryAudio.deviceOn[i] 2186 && (mBatteryAudio.lastTime[i] != 0)) { 2187 int32_t tmpTime = mBatteryAudio.lastTime[i] + time; 2188 totalTime += tmpTime; 2189 } 2190 2191 reply->writeInt32(totalTime); 2192 // reset the total time 2193 mBatteryAudio.totalTime[i] = 0; 2194 } 2195 2196 // codec usage 2197 BatteryUsageInfo info; 2198 int size = mBatteryData.size(); 2199 2200 reply->writeInt32(size); 2201 int i = 0; 2202 2203 while (i < size) { 2204 info = mBatteryData.valueAt(i); 2205 2206 reply->writeInt32(mBatteryData.keyAt(i)); //UID 2207 reply->writeInt32(info.audioTotalTime); 2208 reply->writeInt32(info.videoTotalTime); 2209 2210 info.audioTotalTime = 0; 2211 info.videoTotalTime = 0; 2212 2213 // remove the UID entry where no stream is being played 2214 if (info.refCount <= 0) { 2215 mBatteryData.removeItemsAt(i); 2216 size --; 2217 i --; 2218 } 2219 i++; 2220 } 2221 return NO_ERROR; 2222} 2223} // namespace android 2224