MediaPlayerService.cpp revision df2592beab557663a471da2ac33ca463f7eee722
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/IBatteryStats.h> 38#include <binder/IPCThreadState.h> 39#include <binder/IServiceManager.h> 40#include <binder/MemoryHeapBase.h> 41#include <binder/MemoryBase.h> 42#include <gui/Surface.h> 43#include <utils/Errors.h> // for status_t 44#include <utils/String8.h> 45#include <utils/SystemClock.h> 46#include <utils/Timers.h> 47#include <utils/Vector.h> 48 49#include <media/IMediaHTTPService.h> 50#include <media/IRemoteDisplay.h> 51#include <media/IRemoteDisplayClient.h> 52#include <media/MediaPlayerInterface.h> 53#include <media/mediarecorder.h> 54#include <media/MediaMetadataRetrieverInterface.h> 55#include <media/Metadata.h> 56#include <media/AudioTrack.h> 57#include <media/MemoryLeakTrackUtil.h> 58#include <media/stagefright/MediaCodecList.h> 59#include <media/stagefright/MediaErrors.h> 60#include <media/stagefright/AudioPlayer.h> 61#include <media/stagefright/foundation/ADebug.h> 62 63#include <system/audio.h> 64 65#include <private/android_filesystem_config.h> 66 67#include "ActivityManager.h" 68#include "MediaRecorderClient.h" 69#include "MediaPlayerService.h" 70#include "MetadataRetrieverClient.h" 71#include "MediaPlayerFactory.h" 72 73#include "MidiFile.h" 74#include "TestPlayerStub.h" 75#include "StagefrightPlayer.h" 76#include "nuplayer/NuPlayerDriver.h" 77 78#include <OMX.h> 79 80#include "Crypto.h" 81#include "Drm.h" 82#include "HDCP.h" 83#include "HTTPBase.h" 84#include "RemoteDisplay.h" 85 86namespace { 87using android::media::Metadata; 88using android::status_t; 89using android::OK; 90using android::BAD_VALUE; 91using android::NOT_ENOUGH_DATA; 92using android::Parcel; 93 94// Max number of entries in the filter. 95const int kMaxFilterSize = 64; // I pulled that out of thin air. 96 97// FIXME: Move all the metadata related function in the Metadata.cpp 98 99 100// Unmarshall a filter from a Parcel. 101// Filter format in a parcel: 102// 103// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 104// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 105// | number of entries (n) | 106// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 107// | metadata type 1 | 108// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 109// | metadata type 2 | 110// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 111// .... 112// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 113// | metadata type n | 114// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 115// 116// @param p Parcel that should start with a filter. 117// @param[out] filter On exit contains the list of metadata type to be 118// filtered. 119// @param[out] status On exit contains the status code to be returned. 120// @return true if the parcel starts with a valid filter. 121bool unmarshallFilter(const Parcel& p, 122 Metadata::Filter *filter, 123 status_t *status) 124{ 125 int32_t val; 126 if (p.readInt32(&val) != OK) 127 { 128 ALOGE("Failed to read filter's length"); 129 *status = NOT_ENOUGH_DATA; 130 return false; 131 } 132 133 if( val > kMaxFilterSize || val < 0) 134 { 135 ALOGE("Invalid filter len %d", val); 136 *status = BAD_VALUE; 137 return false; 138 } 139 140 const size_t num = val; 141 142 filter->clear(); 143 filter->setCapacity(num); 144 145 size_t size = num * sizeof(Metadata::Type); 146 147 148 if (p.dataAvail() < size) 149 { 150 ALOGE("Filter too short expected %d but got %d", size, p.dataAvail()); 151 *status = NOT_ENOUGH_DATA; 152 return false; 153 } 154 155 const Metadata::Type *data = 156 static_cast<const Metadata::Type*>(p.readInplace(size)); 157 158 if (NULL == data) 159 { 160 ALOGE("Filter had no data"); 161 *status = BAD_VALUE; 162 return false; 163 } 164 165 // TODO: The stl impl of vector would be more efficient here 166 // because it degenerates into a memcpy on pod types. Try to 167 // replace later or use stl::set. 168 for (size_t i = 0; i < num; ++i) 169 { 170 filter->add(*data); 171 ++data; 172 } 173 *status = OK; 174 return true; 175} 176 177// @param filter Of metadata type. 178// @param val To be searched. 179// @return true if a match was found. 180bool findMetadata(const Metadata::Filter& filter, const int32_t val) 181{ 182 // Deal with empty and ANY right away 183 if (filter.isEmpty()) return false; 184 if (filter[0] == Metadata::kAny) return true; 185 186 return filter.indexOf(val) >= 0; 187} 188 189} // anonymous namespace 190 191 192namespace { 193using android::Parcel; 194using android::String16; 195 196// marshalling tag indicating flattened utf16 tags 197// keep in sync with frameworks/base/media/java/android/media/AudioAttributes.java 198const int32_t kAudioAttributesMarshallTagFlattenTags = 1; 199 200// Audio attributes format in a parcel: 201// 202// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 203// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 204// | usage | 205// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 206// | content_type | 207// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 208// | source | 209// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 210// | flags | 211// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 212// | kAudioAttributesMarshallTagFlattenTags | // ignore tags if not found 213// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 214// | flattened tags in UTF16 | 215// | ... | 216// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 217// 218// @param p Parcel that contains audio attributes. 219// @param[out] attributes On exit points to an initialized audio_attributes_t structure 220// @param[out] status On exit contains the status code to be returned. 221void unmarshallAudioAttributes(const Parcel& parcel, audio_attributes_t *attributes) 222{ 223 attributes->usage = (audio_usage_t) parcel.readInt32(); 224 attributes->content_type = (audio_content_type_t) parcel.readInt32(); 225 attributes->source = (audio_source_t) parcel.readInt32(); 226 attributes->flags = (audio_flags_mask_t) parcel.readInt32(); 227 const bool hasFlattenedTag = (parcel.readInt32() == kAudioAttributesMarshallTagFlattenTags); 228 if (hasFlattenedTag) { 229 // the tags are UTF16, convert to UTF8 230 String16 tags = parcel.readString16(); 231 ssize_t realTagSize = utf16_to_utf8_length(tags.string(), tags.size()); 232 if (realTagSize <= 0) { 233 strcpy(attributes->tags, ""); 234 } else { 235 // copy the flattened string into the attributes as the destination for the conversion: 236 // copying array size -1, array for tags was calloc'd, no need to NULL-terminate it 237 size_t tagSize = realTagSize > AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 ? 238 AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 : realTagSize; 239 utf16_to_utf8(tags.string(), tagSize, attributes->tags); 240 } 241 } else { 242 ALOGE("unmarshallAudioAttributes() received unflattened tags, ignoring tag values"); 243 strcpy(attributes->tags, ""); 244 } 245} 246} // anonymous namespace 247 248 249namespace android { 250 251static bool checkPermission(const char* permissionString) { 252#ifndef HAVE_ANDROID_OS 253 return true; 254#endif 255 if (getpid() == IPCThreadState::self()->getCallingPid()) return true; 256 bool ok = checkCallingPermission(String16(permissionString)); 257 if (!ok) ALOGE("Request requires %s", permissionString); 258 return ok; 259} 260 261// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround 262/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4; 263/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false; 264 265void MediaPlayerService::instantiate() { 266 defaultServiceManager()->addService( 267 String16("media.player"), new MediaPlayerService()); 268} 269 270MediaPlayerService::MediaPlayerService() 271{ 272 ALOGV("MediaPlayerService created"); 273 mNextConnId = 1; 274 275 mBatteryAudio.refCount = 0; 276 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 277 mBatteryAudio.deviceOn[i] = 0; 278 mBatteryAudio.lastTime[i] = 0; 279 mBatteryAudio.totalTime[i] = 0; 280 } 281 // speaker is on by default 282 mBatteryAudio.deviceOn[SPEAKER] = 1; 283 284 // reset battery stats 285 // if the mediaserver has crashed, battery stats could be left 286 // in bad state, reset the state upon service start. 287 const sp<IServiceManager> sm(defaultServiceManager()); 288 if (sm != NULL) { 289 const String16 name("batterystats"); 290 sp<IBatteryStats> batteryStats = 291 interface_cast<IBatteryStats>(sm->getService(name)); 292 if (batteryStats != NULL) { 293 batteryStats->noteResetVideo(); 294 batteryStats->noteResetAudio(); 295 } 296 } 297 298 MediaPlayerFactory::registerBuiltinFactories(); 299} 300 301MediaPlayerService::~MediaPlayerService() 302{ 303 ALOGV("MediaPlayerService destroyed"); 304} 305 306sp<IMediaRecorder> MediaPlayerService::createMediaRecorder() 307{ 308 pid_t pid = IPCThreadState::self()->getCallingPid(); 309 sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid); 310 wp<MediaRecorderClient> w = recorder; 311 Mutex::Autolock lock(mLock); 312 mMediaRecorderClients.add(w); 313 ALOGV("Create new media recorder client from pid %d", pid); 314 return recorder; 315} 316 317void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client) 318{ 319 Mutex::Autolock lock(mLock); 320 mMediaRecorderClients.remove(client); 321 ALOGV("Delete media recorder client"); 322} 323 324sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever() 325{ 326 pid_t pid = IPCThreadState::self()->getCallingPid(); 327 sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid); 328 ALOGV("Create new media retriever from pid %d", pid); 329 return retriever; 330} 331 332sp<IMediaPlayer> MediaPlayerService::create(const sp<IMediaPlayerClient>& client, 333 int audioSessionId) 334{ 335 pid_t pid = IPCThreadState::self()->getCallingPid(); 336 int32_t connId = android_atomic_inc(&mNextConnId); 337 338 sp<Client> c = new Client( 339 this, pid, connId, client, audioSessionId, 340 IPCThreadState::self()->getCallingUid()); 341 342 ALOGV("Create new client(%d) from pid %d, uid %d, ", connId, pid, 343 IPCThreadState::self()->getCallingUid()); 344 345 wp<Client> w = c; 346 { 347 Mutex::Autolock lock(mLock); 348 mClients.add(w); 349 } 350 return c; 351} 352 353sp<IMediaCodecList> MediaPlayerService::getCodecList() const { 354 return MediaCodecList::getLocalInstance(); 355} 356 357sp<IOMX> MediaPlayerService::getOMX() { 358 Mutex::Autolock autoLock(mLock); 359 360 if (mOMX.get() == NULL) { 361 mOMX = new OMX; 362 } 363 364 return mOMX; 365} 366 367sp<ICrypto> MediaPlayerService::makeCrypto() { 368 return new Crypto; 369} 370 371sp<IDrm> MediaPlayerService::makeDrm() { 372 return new Drm; 373} 374 375sp<IHDCP> MediaPlayerService::makeHDCP(bool createEncryptionModule) { 376 return new HDCP(createEncryptionModule); 377} 378 379sp<IRemoteDisplay> MediaPlayerService::listenForRemoteDisplay( 380 const sp<IRemoteDisplayClient>& client, const String8& iface) { 381 if (!checkPermission("android.permission.CONTROL_WIFI_DISPLAY")) { 382 return NULL; 383 } 384 385 return new RemoteDisplay(client, iface.string()); 386} 387 388status_t MediaPlayerService::AudioCache::dump(int fd, const Vector<String16>& /*args*/) const 389{ 390 const size_t SIZE = 256; 391 char buffer[SIZE]; 392 String8 result; 393 394 result.append(" AudioCache\n"); 395 if (mHeap != 0) { 396 snprintf(buffer, 255, " heap base(%p), size(%zu), flags(%d)\n", 397 mHeap->getBase(), mHeap->getSize(), mHeap->getFlags()); 398 result.append(buffer); 399 } 400 snprintf(buffer, 255, " msec per frame(%f), channel count(%d), format(%d), frame count(%zd)\n", 401 mMsecsPerFrame, mChannelCount, mFormat, mFrameCount); 402 result.append(buffer); 403 snprintf(buffer, 255, " sample rate(%d), size(%d), error(%d), command complete(%s)\n", 404 mSampleRate, mSize, mError, mCommandComplete?"true":"false"); 405 result.append(buffer); 406 ::write(fd, result.string(), result.size()); 407 return NO_ERROR; 408} 409 410status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const 411{ 412 const size_t SIZE = 256; 413 char buffer[SIZE]; 414 String8 result; 415 416 result.append(" AudioOutput\n"); 417 snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", 418 mStreamType, mLeftVolume, mRightVolume); 419 result.append(buffer); 420 snprintf(buffer, 255, " msec per frame(%f), latency (%d)\n", 421 mMsecsPerFrame, (mTrack != 0) ? mTrack->latency() : -1); 422 result.append(buffer); 423 snprintf(buffer, 255, " aux effect id(%d), send level (%f)\n", 424 mAuxEffectId, mSendLevel); 425 result.append(buffer); 426 427 ::write(fd, result.string(), result.size()); 428 if (mTrack != 0) { 429 mTrack->dump(fd, args); 430 } 431 return NO_ERROR; 432} 433 434status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) const 435{ 436 const size_t SIZE = 256; 437 char buffer[SIZE]; 438 String8 result; 439 result.append(" Client\n"); 440 snprintf(buffer, 255, " pid(%d), connId(%d), status(%d), looping(%s)\n", 441 mPid, mConnId, mStatus, mLoop?"true": "false"); 442 result.append(buffer); 443 write(fd, result.string(), result.size()); 444 if (mPlayer != NULL) { 445 mPlayer->dump(fd, args); 446 } 447 if (mAudioOutput != 0) { 448 mAudioOutput->dump(fd, args); 449 } 450 write(fd, "\n", 1); 451 return NO_ERROR; 452} 453 454status_t MediaPlayerService::dump(int fd, const Vector<String16>& args) 455{ 456 const size_t SIZE = 256; 457 char buffer[SIZE]; 458 String8 result; 459 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 460 snprintf(buffer, SIZE, "Permission Denial: " 461 "can't dump MediaPlayerService from pid=%d, uid=%d\n", 462 IPCThreadState::self()->getCallingPid(), 463 IPCThreadState::self()->getCallingUid()); 464 result.append(buffer); 465 } else { 466 Mutex::Autolock lock(mLock); 467 for (int i = 0, n = mClients.size(); i < n; ++i) { 468 sp<Client> c = mClients[i].promote(); 469 if (c != 0) c->dump(fd, args); 470 } 471 if (mMediaRecorderClients.size() == 0) { 472 result.append(" No media recorder client\n\n"); 473 } else { 474 for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) { 475 sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote(); 476 if (c != 0) { 477 snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n", c->mPid); 478 result.append(buffer); 479 write(fd, result.string(), result.size()); 480 result = "\n"; 481 c->dump(fd, args); 482 } 483 } 484 } 485 486 result.append(" Files opened and/or mapped:\n"); 487 snprintf(buffer, SIZE, "/proc/%d/maps", gettid()); 488 FILE *f = fopen(buffer, "r"); 489 if (f) { 490 while (!feof(f)) { 491 fgets(buffer, SIZE, f); 492 if (strstr(buffer, " /storage/") || 493 strstr(buffer, " /system/sounds/") || 494 strstr(buffer, " /data/") || 495 strstr(buffer, " /system/media/")) { 496 result.append(" "); 497 result.append(buffer); 498 } 499 } 500 fclose(f); 501 } else { 502 result.append("couldn't open "); 503 result.append(buffer); 504 result.append("\n"); 505 } 506 507 snprintf(buffer, SIZE, "/proc/%d/fd", gettid()); 508 DIR *d = opendir(buffer); 509 if (d) { 510 struct dirent *ent; 511 while((ent = readdir(d)) != NULL) { 512 if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) { 513 snprintf(buffer, SIZE, "/proc/%d/fd/%s", gettid(), ent->d_name); 514 struct stat s; 515 if (lstat(buffer, &s) == 0) { 516 if ((s.st_mode & S_IFMT) == S_IFLNK) { 517 char linkto[256]; 518 int len = readlink(buffer, linkto, sizeof(linkto)); 519 if(len > 0) { 520 if(len > 255) { 521 linkto[252] = '.'; 522 linkto[253] = '.'; 523 linkto[254] = '.'; 524 linkto[255] = 0; 525 } else { 526 linkto[len] = 0; 527 } 528 if (strstr(linkto, "/storage/") == linkto || 529 strstr(linkto, "/system/sounds/") == linkto || 530 strstr(linkto, "/data/") == linkto || 531 strstr(linkto, "/system/media/") == linkto) { 532 result.append(" "); 533 result.append(buffer); 534 result.append(" -> "); 535 result.append(linkto); 536 result.append("\n"); 537 } 538 } 539 } else { 540 result.append(" unexpected type for "); 541 result.append(buffer); 542 result.append("\n"); 543 } 544 } 545 } 546 } 547 closedir(d); 548 } else { 549 result.append("couldn't open "); 550 result.append(buffer); 551 result.append("\n"); 552 } 553 554 bool dumpMem = false; 555 for (size_t i = 0; i < args.size(); i++) { 556 if (args[i] == String16("-m")) { 557 dumpMem = true; 558 } 559 } 560 if (dumpMem) { 561 dumpMemoryAddresses(fd); 562 } 563 } 564 write(fd, result.string(), result.size()); 565 return NO_ERROR; 566} 567 568void MediaPlayerService::removeClient(wp<Client> client) 569{ 570 Mutex::Autolock lock(mLock); 571 mClients.remove(client); 572} 573 574MediaPlayerService::Client::Client( 575 const sp<MediaPlayerService>& service, pid_t pid, 576 int32_t connId, const sp<IMediaPlayerClient>& client, 577 int audioSessionId, uid_t uid) 578{ 579 ALOGV("Client(%d) constructor", connId); 580 mPid = pid; 581 mConnId = connId; 582 mService = service; 583 mClient = client; 584 mLoop = false; 585 mStatus = NO_INIT; 586 mAudioSessionId = audioSessionId; 587 mUID = uid; 588 mRetransmitEndpointValid = false; 589 mAudioAttributes = NULL; 590 591#if CALLBACK_ANTAGONIZER 592 ALOGD("create Antagonizer"); 593 mAntagonizer = new Antagonizer(notify, this); 594#endif 595} 596 597MediaPlayerService::Client::~Client() 598{ 599 ALOGV("Client(%d) destructor pid = %d", mConnId, mPid); 600 mAudioOutput.clear(); 601 wp<Client> client(this); 602 disconnect(); 603 mService->removeClient(client); 604 if (mAudioAttributes != NULL) { 605 free(mAudioAttributes); 606 } 607} 608 609void MediaPlayerService::Client::disconnect() 610{ 611 ALOGV("disconnect(%d) from pid %d", mConnId, mPid); 612 // grab local reference and clear main reference to prevent future 613 // access to object 614 sp<MediaPlayerBase> p; 615 { 616 Mutex::Autolock l(mLock); 617 p = mPlayer; 618 mClient.clear(); 619 } 620 621 mPlayer.clear(); 622 623 // clear the notification to prevent callbacks to dead client 624 // and reset the player. We assume the player will serialize 625 // access to itself if necessary. 626 if (p != 0) { 627 p->setNotifyCallback(0, 0); 628#if CALLBACK_ANTAGONIZER 629 ALOGD("kill Antagonizer"); 630 mAntagonizer->kill(); 631#endif 632 p->reset(); 633 } 634 635 disconnectNativeWindow(); 636 637 IPCThreadState::self()->flushCommands(); 638} 639 640sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) 641{ 642 // determine if we have the right player type 643 sp<MediaPlayerBase> p = mPlayer; 644 if ((p != NULL) && (p->playerType() != playerType)) { 645 ALOGV("delete player"); 646 p.clear(); 647 } 648 if (p == NULL) { 649 p = MediaPlayerFactory::createPlayer(playerType, this, notify); 650 } 651 652 if (p != NULL) { 653 p->setUID(mUID); 654 } 655 656 return p; 657} 658 659sp<MediaPlayerBase> MediaPlayerService::Client::setDataSource_pre( 660 player_type playerType) 661{ 662 ALOGV("player type = %d", playerType); 663 664 // create the right type of player 665 sp<MediaPlayerBase> p = createPlayer(playerType); 666 if (p == NULL) { 667 return p; 668 } 669 670 if (!p->hardwareOutput()) { 671 mAudioOutput = new AudioOutput(mAudioSessionId, IPCThreadState::self()->getCallingUid(), 672 mPid, mAudioAttributes); 673 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 674 } 675 676 return p; 677} 678 679void MediaPlayerService::Client::setDataSource_post( 680 const sp<MediaPlayerBase>& p, 681 status_t status) 682{ 683 ALOGV(" setDataSource"); 684 mStatus = status; 685 if (mStatus != OK) { 686 ALOGE(" error: %d", mStatus); 687 return; 688 } 689 690 // Set the re-transmission endpoint if one was chosen. 691 if (mRetransmitEndpointValid) { 692 mStatus = p->setRetransmitEndpoint(&mRetransmitEndpoint); 693 if (mStatus != NO_ERROR) { 694 ALOGE("setRetransmitEndpoint error: %d", mStatus); 695 } 696 } 697 698 if (mStatus == OK) { 699 mPlayer = p; 700 } 701} 702 703status_t MediaPlayerService::Client::setDataSource( 704 const sp<IMediaHTTPService> &httpService, 705 const char *url, 706 const KeyedVector<String8, String8> *headers) 707{ 708 ALOGV("setDataSource(%s)", url); 709 if (url == NULL) 710 return UNKNOWN_ERROR; 711 712 if ((strncmp(url, "http://", 7) == 0) || 713 (strncmp(url, "https://", 8) == 0) || 714 (strncmp(url, "rtsp://", 7) == 0)) { 715 if (!checkPermission("android.permission.INTERNET")) { 716 return PERMISSION_DENIED; 717 } 718 } 719 720 if (strncmp(url, "content://", 10) == 0) { 721 // get a filedescriptor for the content Uri and 722 // pass it to the setDataSource(fd) method 723 724 String16 url16(url); 725 int fd = android::openContentProviderFile(url16); 726 if (fd < 0) 727 { 728 ALOGE("Couldn't open fd for %s", url); 729 return UNKNOWN_ERROR; 730 } 731 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 732 close(fd); 733 return mStatus; 734 } else { 735 player_type playerType = MediaPlayerFactory::getPlayerType(this, url); 736 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 737 if (p == NULL) { 738 return NO_INIT; 739 } 740 741 setDataSource_post(p, p->setDataSource(httpService, url, headers)); 742 return mStatus; 743 } 744} 745 746status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 747{ 748 ALOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length); 749 struct stat sb; 750 int ret = fstat(fd, &sb); 751 if (ret != 0) { 752 ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 753 return UNKNOWN_ERROR; 754 } 755 756 ALOGV("st_dev = %llu", sb.st_dev); 757 ALOGV("st_mode = %u", sb.st_mode); 758 ALOGV("st_uid = %lu", static_cast<unsigned long>(sb.st_uid)); 759 ALOGV("st_gid = %lu", static_cast<unsigned long>(sb.st_gid)); 760 ALOGV("st_size = %llu", sb.st_size); 761 762 if (offset >= sb.st_size) { 763 ALOGE("offset error"); 764 ::close(fd); 765 return UNKNOWN_ERROR; 766 } 767 if (offset + length > sb.st_size) { 768 length = sb.st_size - offset; 769 ALOGV("calculated length = %lld", length); 770 } 771 772 player_type playerType = MediaPlayerFactory::getPlayerType(this, 773 fd, 774 offset, 775 length); 776 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 777 if (p == NULL) { 778 return NO_INIT; 779 } 780 781 // now set data source 782 setDataSource_post(p, p->setDataSource(fd, offset, length)); 783 return mStatus; 784} 785 786status_t MediaPlayerService::Client::setDataSource( 787 const sp<IStreamSource> &source) { 788 // create the right type of player 789 player_type playerType = MediaPlayerFactory::getPlayerType(this, source); 790 sp<MediaPlayerBase> p = setDataSource_pre(playerType); 791 if (p == NULL) { 792 return NO_INIT; 793 } 794 795 // now set data source 796 setDataSource_post(p, p->setDataSource(source)); 797 return mStatus; 798} 799 800void MediaPlayerService::Client::disconnectNativeWindow() { 801 if (mConnectedWindow != NULL) { 802 status_t err = native_window_api_disconnect(mConnectedWindow.get(), 803 NATIVE_WINDOW_API_MEDIA); 804 805 if (err != OK) { 806 ALOGW("native_window_api_disconnect returned an error: %s (%d)", 807 strerror(-err), err); 808 } 809 } 810 mConnectedWindow.clear(); 811} 812 813status_t MediaPlayerService::Client::setVideoSurfaceTexture( 814 const sp<IGraphicBufferProducer>& bufferProducer) 815{ 816 ALOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, bufferProducer.get()); 817 sp<MediaPlayerBase> p = getPlayer(); 818 if (p == 0) return UNKNOWN_ERROR; 819 820 sp<IBinder> binder(bufferProducer == NULL ? NULL : 821 bufferProducer->asBinder()); 822 if (mConnectedWindowBinder == binder) { 823 return OK; 824 } 825 826 sp<ANativeWindow> anw; 827 if (bufferProducer != NULL) { 828 anw = new Surface(bufferProducer, true /* controlledByApp */); 829 status_t err = native_window_api_connect(anw.get(), 830 NATIVE_WINDOW_API_MEDIA); 831 832 if (err != OK) { 833 ALOGE("setVideoSurfaceTexture failed: %d", err); 834 // Note that we must do the reset before disconnecting from the ANW. 835 // Otherwise queue/dequeue calls could be made on the disconnected 836 // ANW, which may result in errors. 837 reset(); 838 839 disconnectNativeWindow(); 840 841 return err; 842 } 843 } 844 845 // Note that we must set the player's new GraphicBufferProducer before 846 // disconnecting the old one. Otherwise queue/dequeue calls could be made 847 // on the disconnected ANW, which may result in errors. 848 status_t err = p->setVideoSurfaceTexture(bufferProducer); 849 850 disconnectNativeWindow(); 851 852 mConnectedWindow = anw; 853 854 if (err == OK) { 855 mConnectedWindowBinder = binder; 856 } else { 857 disconnectNativeWindow(); 858 } 859 860 return err; 861} 862 863status_t MediaPlayerService::Client::invoke(const Parcel& request, 864 Parcel *reply) 865{ 866 sp<MediaPlayerBase> p = getPlayer(); 867 if (p == NULL) return UNKNOWN_ERROR; 868 return p->invoke(request, reply); 869} 870 871// This call doesn't need to access the native player. 872status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 873{ 874 status_t status; 875 media::Metadata::Filter allow, drop; 876 877 if (unmarshallFilter(filter, &allow, &status) && 878 unmarshallFilter(filter, &drop, &status)) { 879 Mutex::Autolock lock(mLock); 880 881 mMetadataAllow = allow; 882 mMetadataDrop = drop; 883 } 884 return status; 885} 886 887status_t MediaPlayerService::Client::getMetadata( 888 bool update_only, bool /*apply_filter*/, Parcel *reply) 889{ 890 sp<MediaPlayerBase> player = getPlayer(); 891 if (player == 0) return UNKNOWN_ERROR; 892 893 status_t status; 894 // Placeholder for the return code, updated by the caller. 895 reply->writeInt32(-1); 896 897 media::Metadata::Filter ids; 898 899 // We don't block notifications while we fetch the data. We clear 900 // mMetadataUpdated first so we don't lose notifications happening 901 // during the rest of this call. 902 { 903 Mutex::Autolock lock(mLock); 904 if (update_only) { 905 ids = mMetadataUpdated; 906 } 907 mMetadataUpdated.clear(); 908 } 909 910 media::Metadata metadata(reply); 911 912 metadata.appendHeader(); 913 status = player->getMetadata(ids, reply); 914 915 if (status != OK) { 916 metadata.resetParcel(); 917 ALOGE("getMetadata failed %d", status); 918 return status; 919 } 920 921 // FIXME: Implement filtering on the result. Not critical since 922 // filtering takes place on the update notifications already. This 923 // would be when all the metadata are fetch and a filter is set. 924 925 // Everything is fine, update the metadata length. 926 metadata.updateLength(); 927 return OK; 928} 929 930status_t MediaPlayerService::Client::prepareAsync() 931{ 932 ALOGV("[%d] prepareAsync", mConnId); 933 sp<MediaPlayerBase> p = getPlayer(); 934 if (p == 0) return UNKNOWN_ERROR; 935 status_t ret = p->prepareAsync(); 936#if CALLBACK_ANTAGONIZER 937 ALOGD("start Antagonizer"); 938 if (ret == NO_ERROR) mAntagonizer->start(); 939#endif 940 return ret; 941} 942 943status_t MediaPlayerService::Client::start() 944{ 945 ALOGV("[%d] start", mConnId); 946 sp<MediaPlayerBase> p = getPlayer(); 947 if (p == 0) return UNKNOWN_ERROR; 948 p->setLooping(mLoop); 949 return p->start(); 950} 951 952status_t MediaPlayerService::Client::stop() 953{ 954 ALOGV("[%d] stop", mConnId); 955 sp<MediaPlayerBase> p = getPlayer(); 956 if (p == 0) return UNKNOWN_ERROR; 957 return p->stop(); 958} 959 960status_t MediaPlayerService::Client::pause() 961{ 962 ALOGV("[%d] pause", mConnId); 963 sp<MediaPlayerBase> p = getPlayer(); 964 if (p == 0) return UNKNOWN_ERROR; 965 return p->pause(); 966} 967 968status_t MediaPlayerService::Client::isPlaying(bool* state) 969{ 970 *state = false; 971 sp<MediaPlayerBase> p = getPlayer(); 972 if (p == 0) return UNKNOWN_ERROR; 973 *state = p->isPlaying(); 974 ALOGV("[%d] isPlaying: %d", mConnId, *state); 975 return NO_ERROR; 976} 977 978status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 979{ 980 ALOGV("getCurrentPosition"); 981 sp<MediaPlayerBase> p = getPlayer(); 982 if (p == 0) return UNKNOWN_ERROR; 983 status_t ret = p->getCurrentPosition(msec); 984 if (ret == NO_ERROR) { 985 ALOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 986 } else { 987 ALOGE("getCurrentPosition returned %d", ret); 988 } 989 return ret; 990} 991 992status_t MediaPlayerService::Client::getDuration(int *msec) 993{ 994 ALOGV("getDuration"); 995 sp<MediaPlayerBase> p = getPlayer(); 996 if (p == 0) return UNKNOWN_ERROR; 997 status_t ret = p->getDuration(msec); 998 if (ret == NO_ERROR) { 999 ALOGV("[%d] getDuration = %d", mConnId, *msec); 1000 } else { 1001 ALOGE("getDuration returned %d", ret); 1002 } 1003 return ret; 1004} 1005 1006status_t MediaPlayerService::Client::setNextPlayer(const sp<IMediaPlayer>& player) { 1007 ALOGV("setNextPlayer"); 1008 Mutex::Autolock l(mLock); 1009 sp<Client> c = static_cast<Client*>(player.get()); 1010 mNextClient = c; 1011 1012 if (c != NULL) { 1013 if (mAudioOutput != NULL) { 1014 mAudioOutput->setNextOutput(c->mAudioOutput); 1015 } else if ((mPlayer != NULL) && !mPlayer->hardwareOutput()) { 1016 ALOGE("no current audio output"); 1017 } 1018 1019 if ((mPlayer != NULL) && (mNextClient->getPlayer() != NULL)) { 1020 mPlayer->setNextPlayer(mNextClient->getPlayer()); 1021 } 1022 } 1023 1024 return OK; 1025} 1026 1027status_t MediaPlayerService::Client::seekTo(int msec) 1028{ 1029 ALOGV("[%d] seekTo(%d)", mConnId, msec); 1030 sp<MediaPlayerBase> p = getPlayer(); 1031 if (p == 0) return UNKNOWN_ERROR; 1032 return p->seekTo(msec); 1033} 1034 1035status_t MediaPlayerService::Client::reset() 1036{ 1037 ALOGV("[%d] reset", mConnId); 1038 mRetransmitEndpointValid = false; 1039 sp<MediaPlayerBase> p = getPlayer(); 1040 if (p == 0) return UNKNOWN_ERROR; 1041 return p->reset(); 1042} 1043 1044status_t MediaPlayerService::Client::setAudioStreamType(audio_stream_type_t type) 1045{ 1046 ALOGV("[%d] setAudioStreamType(%d)", mConnId, type); 1047 // TODO: for hardware output, call player instead 1048 Mutex::Autolock l(mLock); 1049 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 1050 return NO_ERROR; 1051} 1052 1053status_t MediaPlayerService::Client::setAudioAttributes_l(const Parcel &parcel) 1054{ 1055 if (mAudioAttributes != NULL) { free(mAudioAttributes); } 1056 mAudioAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t)); 1057 unmarshallAudioAttributes(parcel, mAudioAttributes); 1058 1059 ALOGV("setAudioAttributes_l() usage=%d content=%d flags=0x%x tags=%s", 1060 mAudioAttributes->usage, mAudioAttributes->content_type, mAudioAttributes->flags, 1061 mAudioAttributes->tags); 1062 1063 if (mAudioOutput != 0) { 1064 mAudioOutput->setAudioAttributes(mAudioAttributes); 1065 } 1066 return NO_ERROR; 1067} 1068 1069status_t MediaPlayerService::Client::setLooping(int loop) 1070{ 1071 ALOGV("[%d] setLooping(%d)", mConnId, loop); 1072 mLoop = loop; 1073 sp<MediaPlayerBase> p = getPlayer(); 1074 if (p != 0) return p->setLooping(loop); 1075 return NO_ERROR; 1076} 1077 1078status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1079{ 1080 ALOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1081 1082 // for hardware output, call player instead 1083 sp<MediaPlayerBase> p = getPlayer(); 1084 { 1085 Mutex::Autolock l(mLock); 1086 if (p != 0 && p->hardwareOutput()) { 1087 MediaPlayerHWInterface* hwp = 1088 reinterpret_cast<MediaPlayerHWInterface*>(p.get()); 1089 return hwp->setVolume(leftVolume, rightVolume); 1090 } else { 1091 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1092 return NO_ERROR; 1093 } 1094 } 1095 1096 return NO_ERROR; 1097} 1098 1099status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level) 1100{ 1101 ALOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level); 1102 Mutex::Autolock l(mLock); 1103 if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level); 1104 return NO_ERROR; 1105} 1106 1107status_t MediaPlayerService::Client::attachAuxEffect(int effectId) 1108{ 1109 ALOGV("[%d] attachAuxEffect(%d)", mConnId, effectId); 1110 Mutex::Autolock l(mLock); 1111 if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId); 1112 return NO_ERROR; 1113} 1114 1115status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) { 1116 ALOGV("[%d] setParameter(%d)", mConnId, key); 1117 switch (key) { 1118 case KEY_PARAMETER_AUDIO_ATTRIBUTES: 1119 { 1120 Mutex::Autolock l(mLock); 1121 return setAudioAttributes_l(request); 1122 } 1123 default: 1124 sp<MediaPlayerBase> p = getPlayer(); 1125 if (p == 0) { return UNKNOWN_ERROR; } 1126 return p->setParameter(key, request); 1127 } 1128} 1129 1130status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) { 1131 ALOGV("[%d] getParameter(%d)", mConnId, key); 1132 sp<MediaPlayerBase> p = getPlayer(); 1133 if (p == 0) return UNKNOWN_ERROR; 1134 return p->getParameter(key, reply); 1135} 1136 1137status_t MediaPlayerService::Client::setRetransmitEndpoint( 1138 const struct sockaddr_in* endpoint) { 1139 1140 if (NULL != endpoint) { 1141 uint32_t a = ntohl(endpoint->sin_addr.s_addr); 1142 uint16_t p = ntohs(endpoint->sin_port); 1143 ALOGV("[%d] setRetransmitEndpoint(%u.%u.%u.%u:%hu)", mConnId, 1144 (a >> 24), (a >> 16) & 0xFF, (a >> 8) & 0xFF, (a & 0xFF), p); 1145 } else { 1146 ALOGV("[%d] setRetransmitEndpoint = <none>", mConnId); 1147 } 1148 1149 sp<MediaPlayerBase> p = getPlayer(); 1150 1151 // Right now, the only valid time to set a retransmit endpoint is before 1152 // player selection has been made (since the presence or absence of a 1153 // retransmit endpoint is going to determine which player is selected during 1154 // setDataSource). 1155 if (p != 0) return INVALID_OPERATION; 1156 1157 if (NULL != endpoint) { 1158 mRetransmitEndpoint = *endpoint; 1159 mRetransmitEndpointValid = true; 1160 } else { 1161 mRetransmitEndpointValid = false; 1162 } 1163 1164 return NO_ERROR; 1165} 1166 1167status_t MediaPlayerService::Client::getRetransmitEndpoint( 1168 struct sockaddr_in* endpoint) 1169{ 1170 if (NULL == endpoint) 1171 return BAD_VALUE; 1172 1173 sp<MediaPlayerBase> p = getPlayer(); 1174 1175 if (p != NULL) 1176 return p->getRetransmitEndpoint(endpoint); 1177 1178 if (!mRetransmitEndpointValid) 1179 return NO_INIT; 1180 1181 *endpoint = mRetransmitEndpoint; 1182 1183 return NO_ERROR; 1184} 1185 1186void MediaPlayerService::Client::notify( 1187 void* cookie, int msg, int ext1, int ext2, const Parcel *obj) 1188{ 1189 Client* client = static_cast<Client*>(cookie); 1190 if (client == NULL) { 1191 return; 1192 } 1193 1194 sp<IMediaPlayerClient> c; 1195 { 1196 Mutex::Autolock l(client->mLock); 1197 c = client->mClient; 1198 if (msg == MEDIA_PLAYBACK_COMPLETE && client->mNextClient != NULL) { 1199 if (client->mAudioOutput != NULL) 1200 client->mAudioOutput->switchToNextOutput(); 1201 client->mNextClient->start(); 1202 client->mNextClient->mClient->notify(MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj); 1203 } 1204 } 1205 1206 if (MEDIA_INFO == msg && 1207 MEDIA_INFO_METADATA_UPDATE == ext1) { 1208 const media::Metadata::Type metadata_type = ext2; 1209 1210 if(client->shouldDropMetadata(metadata_type)) { 1211 return; 1212 } 1213 1214 // Update the list of metadata that have changed. getMetadata 1215 // also access mMetadataUpdated and clears it. 1216 client->addNewMetadataUpdate(metadata_type); 1217 } 1218 1219 if (c != NULL) { 1220 ALOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1221 c->notify(msg, ext1, ext2, obj); 1222 } 1223} 1224 1225 1226bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1227{ 1228 Mutex::Autolock lock(mLock); 1229 1230 if (findMetadata(mMetadataDrop, code)) { 1231 return true; 1232 } 1233 1234 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1235 return false; 1236 } else { 1237 return true; 1238 } 1239} 1240 1241 1242void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1243 Mutex::Autolock lock(mLock); 1244 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1245 mMetadataUpdated.add(metadata_type); 1246 } 1247} 1248 1249#if CALLBACK_ANTAGONIZER 1250const int Antagonizer::interval = 10000; // 10 msecs 1251 1252Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1253 mExit(false), mActive(false), mClient(client), mCb(cb) 1254{ 1255 createThread(callbackThread, this); 1256} 1257 1258void Antagonizer::kill() 1259{ 1260 Mutex::Autolock _l(mLock); 1261 mActive = false; 1262 mExit = true; 1263 mCondition.wait(mLock); 1264} 1265 1266int Antagonizer::callbackThread(void* user) 1267{ 1268 ALOGD("Antagonizer started"); 1269 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1270 while (!p->mExit) { 1271 if (p->mActive) { 1272 ALOGV("send event"); 1273 p->mCb(p->mClient, 0, 0, 0); 1274 } 1275 usleep(interval); 1276 } 1277 Mutex::Autolock _l(p->mLock); 1278 p->mCondition.signal(); 1279 ALOGD("Antagonizer stopped"); 1280 return 0; 1281} 1282#endif 1283 1284status_t MediaPlayerService::decode( 1285 const sp<IMediaHTTPService> &httpService, 1286 const char* url, 1287 uint32_t *pSampleRate, 1288 int* pNumChannels, 1289 audio_format_t* pFormat, 1290 const sp<IMemoryHeap>& heap, 1291 size_t *pSize) 1292{ 1293 ALOGV("decode(%s)", url); 1294 sp<MediaPlayerBase> player; 1295 status_t status = BAD_VALUE; 1296 1297 // Protect our precious, precious DRMd ringtones by only allowing 1298 // decoding of http, but not filesystem paths or content Uris. 1299 // If the application wants to decode those, it should open a 1300 // filedescriptor for them and use that. 1301 if (url != NULL && strncmp(url, "http://", 7) != 0) { 1302 ALOGD("Can't decode %s by path, use filedescriptor instead", url); 1303 return BAD_VALUE; 1304 } 1305 1306 player_type playerType = 1307 MediaPlayerFactory::getPlayerType(NULL /* client */, url); 1308 ALOGV("player type = %d", playerType); 1309 1310 // create the right type of player 1311 sp<AudioCache> cache = new AudioCache(heap); 1312 player = MediaPlayerFactory::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(httpService, 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 *pSize = cache->size(); 1338 *pSampleRate = cache->sampleRate(); 1339 *pNumChannels = cache->channelCount(); 1340 *pFormat = cache->format(); 1341 ALOGV("return size %d sampleRate=%u, channelCount = %d, format = %d", 1342 *pSize, *pSampleRate, *pNumChannels, *pFormat); 1343 status = NO_ERROR; 1344 1345Exit: 1346 if (player != 0) player->reset(); 1347 return status; 1348} 1349 1350status_t MediaPlayerService::decode(int fd, int64_t offset, int64_t length, 1351 uint32_t *pSampleRate, int* pNumChannels, 1352 audio_format_t* pFormat, 1353 const sp<IMemoryHeap>& heap, size_t *pSize) 1354{ 1355 ALOGV("decode(%d, %lld, %lld)", fd, offset, length); 1356 sp<MediaPlayerBase> player; 1357 status_t status = BAD_VALUE; 1358 1359 player_type playerType = MediaPlayerFactory::getPlayerType(NULL /* client */, 1360 fd, 1361 offset, 1362 length); 1363 ALOGV("player type = %d", playerType); 1364 1365 // create the right type of player 1366 sp<AudioCache> cache = new AudioCache(heap); 1367 player = MediaPlayerFactory::createPlayer(playerType, cache.get(), cache->notify); 1368 if (player == NULL) goto Exit; 1369 if (player->hardwareOutput()) goto Exit; 1370 1371 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1372 1373 // set data source 1374 if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit; 1375 1376 ALOGV("prepare"); 1377 player->prepareAsync(); 1378 1379 ALOGV("wait for prepare"); 1380 if (cache->wait() != NO_ERROR) goto Exit; 1381 1382 ALOGV("start"); 1383 player->start(); 1384 1385 ALOGV("wait for playback complete"); 1386 cache->wait(); 1387 // in case of error, return what was successfully decoded. 1388 if (cache->size() == 0) { 1389 goto Exit; 1390 } 1391 1392 *pSize = cache->size(); 1393 *pSampleRate = cache->sampleRate(); 1394 *pNumChannels = cache->channelCount(); 1395 *pFormat = cache->format(); 1396 ALOGV("return size %d, sampleRate=%u, channelCount = %d, format = %d", 1397 *pSize, *pSampleRate, *pNumChannels, *pFormat); 1398 status = NO_ERROR; 1399 1400Exit: 1401 if (player != 0) player->reset(); 1402 ::close(fd); 1403 return status; 1404} 1405 1406 1407#undef LOG_TAG 1408#define LOG_TAG "AudioSink" 1409MediaPlayerService::AudioOutput::AudioOutput(int sessionId, int uid, int pid, 1410 const audio_attributes_t* attr) 1411 : mCallback(NULL), 1412 mCallbackCookie(NULL), 1413 mCallbackData(NULL), 1414 mBytesWritten(0), 1415 mSessionId(sessionId), 1416 mUid(uid), 1417 mPid(pid), 1418 mFlags(AUDIO_OUTPUT_FLAG_NONE) { 1419 ALOGV("AudioOutput(%d)", sessionId); 1420 mStreamType = AUDIO_STREAM_MUSIC; 1421 mLeftVolume = 1.0; 1422 mRightVolume = 1.0; 1423 mPlaybackRatePermille = 1000; 1424 mSampleRateHz = 0; 1425 mMsecsPerFrame = 0; 1426 mAuxEffectId = 0; 1427 mSendLevel = 0.0; 1428 setMinBufferCount(); 1429 mAttributes = attr; 1430} 1431 1432MediaPlayerService::AudioOutput::~AudioOutput() 1433{ 1434 close(); 1435 delete mCallbackData; 1436} 1437 1438void MediaPlayerService::AudioOutput::setMinBufferCount() 1439{ 1440 char value[PROPERTY_VALUE_MAX]; 1441 if (property_get("ro.kernel.qemu", value, 0)) { 1442 mIsOnEmulator = true; 1443 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1444 } 1445} 1446 1447bool MediaPlayerService::AudioOutput::isOnEmulator() 1448{ 1449 setMinBufferCount(); 1450 return mIsOnEmulator; 1451} 1452 1453int MediaPlayerService::AudioOutput::getMinBufferCount() 1454{ 1455 setMinBufferCount(); 1456 return mMinBufferCount; 1457} 1458 1459ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1460{ 1461 if (mTrack == 0) return NO_INIT; 1462 return mTrack->frameCount() * frameSize(); 1463} 1464 1465ssize_t MediaPlayerService::AudioOutput::frameCount() const 1466{ 1467 if (mTrack == 0) return NO_INIT; 1468 return mTrack->frameCount(); 1469} 1470 1471ssize_t MediaPlayerService::AudioOutput::channelCount() const 1472{ 1473 if (mTrack == 0) return NO_INIT; 1474 return mTrack->channelCount(); 1475} 1476 1477ssize_t MediaPlayerService::AudioOutput::frameSize() const 1478{ 1479 if (mTrack == 0) return NO_INIT; 1480 return mTrack->frameSize(); 1481} 1482 1483uint32_t MediaPlayerService::AudioOutput::latency () const 1484{ 1485 if (mTrack == 0) return 0; 1486 return mTrack->latency(); 1487} 1488 1489float MediaPlayerService::AudioOutput::msecsPerFrame() const 1490{ 1491 return mMsecsPerFrame; 1492} 1493 1494status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) const 1495{ 1496 if (mTrack == 0) return NO_INIT; 1497 return mTrack->getPosition(position); 1498} 1499 1500status_t MediaPlayerService::AudioOutput::getTimestamp(AudioTimestamp &ts) const 1501{ 1502 if (mTrack == 0) return NO_INIT; 1503 return mTrack->getTimestamp(ts); 1504} 1505 1506status_t MediaPlayerService::AudioOutput::getFramesWritten(uint32_t *frameswritten) const 1507{ 1508 if (mTrack == 0) return NO_INIT; 1509 *frameswritten = mBytesWritten / frameSize(); 1510 return OK; 1511} 1512 1513status_t MediaPlayerService::AudioOutput::setParameters(const String8& keyValuePairs) 1514{ 1515 if (mTrack == 0) return NO_INIT; 1516 return mTrack->setParameters(keyValuePairs); 1517} 1518 1519String8 MediaPlayerService::AudioOutput::getParameters(const String8& keys) 1520{ 1521 if (mTrack == 0) return String8::empty(); 1522 return mTrack->getParameters(keys); 1523} 1524 1525void MediaPlayerService::AudioOutput::setAudioAttributes(const audio_attributes_t * attributes) { 1526 mAttributes = attributes; 1527} 1528 1529void MediaPlayerService::AudioOutput::deleteRecycledTrack() 1530{ 1531 ALOGV("deleteRecycledTrack"); 1532 1533 if (mRecycledTrack != 0) { 1534 1535 if (mCallbackData != NULL) { 1536 mCallbackData->setOutput(NULL); 1537 mCallbackData->endTrackSwitch(); 1538 } 1539 1540 if ((mRecycledTrack->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) { 1541 mRecycledTrack->flush(); 1542 } 1543 // An offloaded track isn't flushed because the STREAM_END is reported 1544 // slightly prematurely to allow time for the gapless track switch 1545 // but this means that if we decide not to recycle the track there 1546 // could be a small amount of residual data still playing. We leave 1547 // AudioFlinger to drain the track. 1548 1549 mRecycledTrack.clear(); 1550 delete mCallbackData; 1551 mCallbackData = NULL; 1552 close(); 1553 } 1554} 1555 1556status_t MediaPlayerService::AudioOutput::open( 1557 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 1558 audio_format_t format, int bufferCount, 1559 AudioCallback cb, void *cookie, 1560 audio_output_flags_t flags, 1561 const audio_offload_info_t *offloadInfo) 1562{ 1563 mCallback = cb; 1564 mCallbackCookie = cookie; 1565 1566 // Check argument "bufferCount" against the mininum buffer count 1567 if (bufferCount < mMinBufferCount) { 1568 ALOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount); 1569 bufferCount = mMinBufferCount; 1570 1571 } 1572 ALOGV("open(%u, %d, 0x%x, 0x%x, %d, %d 0x%x)", sampleRate, channelCount, channelMask, 1573 format, bufferCount, mSessionId, flags); 1574 uint32_t afSampleRate; 1575 size_t afFrameCount; 1576 size_t frameCount; 1577 1578 // offloading is only supported in callback mode for now. 1579 // offloadInfo must be present if offload flag is set 1580 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) && 1581 ((cb == NULL) || (offloadInfo == NULL))) { 1582 return BAD_VALUE; 1583 } 1584 1585 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) { 1586 frameCount = 0; // AudioTrack will get frame count from AudioFlinger 1587 } else { 1588 uint32_t afSampleRate; 1589 size_t afFrameCount; 1590 1591 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1592 return NO_INIT; 1593 } 1594 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1595 return NO_INIT; 1596 } 1597 1598 frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate; 1599 } 1600 1601 if (channelMask == CHANNEL_MASK_USE_CHANNEL_ORDER) { 1602 channelMask = audio_channel_out_mask_from_count(channelCount); 1603 if (0 == channelMask) { 1604 ALOGE("open() error, can\'t derive mask for %d audio channels", channelCount); 1605 return NO_INIT; 1606 } 1607 } 1608 1609 // Check whether we can recycle the track 1610 bool reuse = false; 1611 bool bothOffloaded = false; 1612 1613 if (mRecycledTrack != 0) { 1614 // check whether we are switching between two offloaded tracks 1615 bothOffloaded = (flags & mRecycledTrack->getFlags() 1616 & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; 1617 1618 // check if the existing track can be reused as-is, or if a new track needs to be created. 1619 reuse = true; 1620 1621 if ((mCallbackData == NULL && mCallback != NULL) || 1622 (mCallbackData != NULL && mCallback == NULL)) { 1623 // recycled track uses callbacks but the caller wants to use writes, or vice versa 1624 ALOGV("can't chain callback and write"); 1625 reuse = false; 1626 } else if ((mRecycledTrack->getSampleRate() != sampleRate) || 1627 (mRecycledTrack->channelCount() != (uint32_t)channelCount) ) { 1628 ALOGV("samplerate, channelcount differ: %u/%u Hz, %u/%d ch", 1629 mRecycledTrack->getSampleRate(), sampleRate, 1630 mRecycledTrack->channelCount(), channelCount); 1631 reuse = false; 1632 } else if (flags != mFlags) { 1633 ALOGV("output flags differ %08x/%08x", flags, mFlags); 1634 reuse = false; 1635 } else if (mRecycledTrack->format() != format) { 1636 reuse = false; 1637 } 1638 } else { 1639 ALOGV("no track available to recycle"); 1640 } 1641 1642 ALOGV_IF(bothOffloaded, "both tracks offloaded"); 1643 1644 // If we can't recycle and both tracks are offloaded 1645 // we must close the previous output before opening a new one 1646 if (bothOffloaded && !reuse) { 1647 ALOGV("both offloaded and not recycling"); 1648 deleteRecycledTrack(); 1649 } 1650 1651 sp<AudioTrack> t; 1652 CallbackData *newcbd = NULL; 1653 1654 // We don't attempt to create a new track if we are recycling an 1655 // offloaded track. But, if we are recycling a non-offloaded or we 1656 // are switching where one is offloaded and one isn't then we create 1657 // the new track in advance so that we can read additional stream info 1658 1659 if (!(reuse && bothOffloaded)) { 1660 ALOGV("creating new AudioTrack"); 1661 1662 if (mCallback != NULL) { 1663 newcbd = new CallbackData(this); 1664 t = new AudioTrack( 1665 mStreamType, 1666 sampleRate, 1667 format, 1668 channelMask, 1669 frameCount, 1670 flags, 1671 CallbackWrapper, 1672 newcbd, 1673 0, // notification frames 1674 mSessionId, 1675 AudioTrack::TRANSFER_CALLBACK, 1676 offloadInfo, 1677 mUid, 1678 mPid, 1679 mAttributes); 1680 } else { 1681 t = new AudioTrack( 1682 mStreamType, 1683 sampleRate, 1684 format, 1685 channelMask, 1686 frameCount, 1687 flags, 1688 NULL, // callback 1689 NULL, // user data 1690 0, // notification frames 1691 mSessionId, 1692 AudioTrack::TRANSFER_DEFAULT, 1693 NULL, // offload info 1694 mUid, 1695 mPid, 1696 mAttributes); 1697 } 1698 1699 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1700 ALOGE("Unable to create audio track"); 1701 delete newcbd; 1702 return NO_INIT; 1703 } else { 1704 // successful AudioTrack initialization implies a legacy stream type was generated 1705 // from the audio attributes 1706 mStreamType = t->streamType(); 1707 } 1708 } 1709 1710 if (reuse) { 1711 CHECK(mRecycledTrack != NULL); 1712 1713 if (!bothOffloaded) { 1714 if (mRecycledTrack->frameCount() != t->frameCount()) { 1715 ALOGV("framecount differs: %u/%u frames", 1716 mRecycledTrack->frameCount(), t->frameCount()); 1717 reuse = false; 1718 } 1719 } 1720 1721 if (reuse) { 1722 ALOGV("chaining to next output and recycling track"); 1723 close(); 1724 mTrack = mRecycledTrack; 1725 mRecycledTrack.clear(); 1726 if (mCallbackData != NULL) { 1727 mCallbackData->setOutput(this); 1728 } 1729 delete newcbd; 1730 return OK; 1731 } 1732 } 1733 1734 // we're not going to reuse the track, unblock and flush it 1735 // this was done earlier if both tracks are offloaded 1736 if (!bothOffloaded) { 1737 deleteRecycledTrack(); 1738 } 1739 1740 CHECK((t != NULL) && ((mCallback == NULL) || (newcbd != NULL))); 1741 1742 mCallbackData = newcbd; 1743 ALOGV("setVolume"); 1744 t->setVolume(mLeftVolume, mRightVolume); 1745 1746 mSampleRateHz = sampleRate; 1747 mFlags = flags; 1748 mMsecsPerFrame = mPlaybackRatePermille / (float) sampleRate; 1749 uint32_t pos; 1750 if (t->getPosition(&pos) == OK) { 1751 mBytesWritten = uint64_t(pos) * t->frameSize(); 1752 } 1753 mTrack = t; 1754 1755 status_t res = NO_ERROR; 1756 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) { 1757 res = t->setSampleRate(mPlaybackRatePermille * mSampleRateHz / 1000); 1758 if (res == NO_ERROR) { 1759 t->setAuxEffectSendLevel(mSendLevel); 1760 res = t->attachAuxEffect(mAuxEffectId); 1761 } 1762 } 1763 ALOGV("open() DONE status %d", res); 1764 return res; 1765} 1766 1767status_t MediaPlayerService::AudioOutput::start() 1768{ 1769 ALOGV("start"); 1770 if (mCallbackData != NULL) { 1771 mCallbackData->endTrackSwitch(); 1772 } 1773 if (mTrack != 0) { 1774 mTrack->setVolume(mLeftVolume, mRightVolume); 1775 mTrack->setAuxEffectSendLevel(mSendLevel); 1776 return mTrack->start(); 1777 } 1778 return NO_INIT; 1779} 1780 1781void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) { 1782 mNextOutput = nextOutput; 1783} 1784 1785 1786void MediaPlayerService::AudioOutput::switchToNextOutput() { 1787 ALOGV("switchToNextOutput"); 1788 if (mNextOutput != NULL) { 1789 if (mCallbackData != NULL) { 1790 mCallbackData->beginTrackSwitch(); 1791 } 1792 delete mNextOutput->mCallbackData; 1793 mNextOutput->mCallbackData = mCallbackData; 1794 mCallbackData = NULL; 1795 mNextOutput->mRecycledTrack = mTrack; 1796 mTrack.clear(); 1797 mNextOutput->mSampleRateHz = mSampleRateHz; 1798 mNextOutput->mMsecsPerFrame = mMsecsPerFrame; 1799 mNextOutput->mBytesWritten = mBytesWritten; 1800 mNextOutput->mFlags = mFlags; 1801 } 1802} 1803 1804ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size) 1805{ 1806 LOG_ALWAYS_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 1807 1808 //ALOGV("write(%p, %u)", buffer, size); 1809 if (mTrack != 0) { 1810 ssize_t ret = mTrack->write(buffer, size); 1811 if (ret >= 0) { 1812 mBytesWritten += ret; 1813 } 1814 return ret; 1815 } 1816 return NO_INIT; 1817} 1818 1819void MediaPlayerService::AudioOutput::stop() 1820{ 1821 ALOGV("stop"); 1822 if (mTrack != 0) mTrack->stop(); 1823} 1824 1825void MediaPlayerService::AudioOutput::flush() 1826{ 1827 ALOGV("flush"); 1828 if (mTrack != 0) mTrack->flush(); 1829} 1830 1831void MediaPlayerService::AudioOutput::pause() 1832{ 1833 ALOGV("pause"); 1834 if (mTrack != 0) mTrack->pause(); 1835} 1836 1837void MediaPlayerService::AudioOutput::close() 1838{ 1839 ALOGV("close"); 1840 mTrack.clear(); 1841} 1842 1843void MediaPlayerService::AudioOutput::setVolume(float left, float right) 1844{ 1845 ALOGV("setVolume(%f, %f)", left, right); 1846 mLeftVolume = left; 1847 mRightVolume = right; 1848 if (mTrack != 0) { 1849 mTrack->setVolume(left, right); 1850 } 1851} 1852 1853status_t MediaPlayerService::AudioOutput::setPlaybackRatePermille(int32_t ratePermille) 1854{ 1855 ALOGV("setPlaybackRatePermille(%d)", ratePermille); 1856 status_t res = NO_ERROR; 1857 if (mTrack != 0) { 1858 res = mTrack->setSampleRate(ratePermille * mSampleRateHz / 1000); 1859 } else { 1860 res = NO_INIT; 1861 } 1862 mPlaybackRatePermille = ratePermille; 1863 if (mSampleRateHz != 0) { 1864 mMsecsPerFrame = mPlaybackRatePermille / (float) mSampleRateHz; 1865 } 1866 return res; 1867} 1868 1869status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level) 1870{ 1871 ALOGV("setAuxEffectSendLevel(%f)", level); 1872 mSendLevel = level; 1873 if (mTrack != 0) { 1874 return mTrack->setAuxEffectSendLevel(level); 1875 } 1876 return NO_ERROR; 1877} 1878 1879status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId) 1880{ 1881 ALOGV("attachAuxEffect(%d)", effectId); 1882 mAuxEffectId = effectId; 1883 if (mTrack != 0) { 1884 return mTrack->attachAuxEffect(effectId); 1885 } 1886 return NO_ERROR; 1887} 1888 1889// static 1890void MediaPlayerService::AudioOutput::CallbackWrapper( 1891 int event, void *cookie, void *info) { 1892 //ALOGV("callbackwrapper"); 1893 CallbackData *data = (CallbackData*)cookie; 1894 data->lock(); 1895 AudioOutput *me = data->getOutput(); 1896 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 1897 if (me == NULL) { 1898 // no output set, likely because the track was scheduled to be reused 1899 // by another player, but the format turned out to be incompatible. 1900 data->unlock(); 1901 if (buffer != NULL) { 1902 buffer->size = 0; 1903 } 1904 return; 1905 } 1906 1907 switch(event) { 1908 case AudioTrack::EVENT_MORE_DATA: { 1909 size_t actualSize = (*me->mCallback)( 1910 me, buffer->raw, buffer->size, me->mCallbackCookie, 1911 CB_EVENT_FILL_BUFFER); 1912 1913 if ((me->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0 && 1914 actualSize == 0 && buffer->size > 0 && me->mNextOutput == NULL) { 1915 // We've reached EOS but the audio track is not stopped yet, 1916 // keep playing silence. 1917 1918 memset(buffer->raw, 0, buffer->size); 1919 actualSize = buffer->size; 1920 } 1921 1922 buffer->size = actualSize; 1923 } break; 1924 1925 1926 case AudioTrack::EVENT_STREAM_END: 1927 ALOGV("callbackwrapper: deliver EVENT_STREAM_END"); 1928 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 1929 me->mCallbackCookie, CB_EVENT_STREAM_END); 1930 break; 1931 1932 case AudioTrack::EVENT_NEW_IAUDIOTRACK : 1933 ALOGV("callbackwrapper: deliver EVENT_TEAR_DOWN"); 1934 (*me->mCallback)(me, NULL /* buffer */, 0 /* size */, 1935 me->mCallbackCookie, CB_EVENT_TEAR_DOWN); 1936 break; 1937 1938 default: 1939 ALOGE("received unknown event type: %d inside CallbackWrapper !", event); 1940 } 1941 1942 data->unlock(); 1943} 1944 1945int MediaPlayerService::AudioOutput::getSessionId() const 1946{ 1947 return mSessionId; 1948} 1949 1950uint32_t MediaPlayerService::AudioOutput::getSampleRate() const 1951{ 1952 if (mTrack == 0) return 0; 1953 return mTrack->getSampleRate(); 1954} 1955 1956#undef LOG_TAG 1957#define LOG_TAG "AudioCache" 1958MediaPlayerService::AudioCache::AudioCache(const sp<IMemoryHeap>& heap) : 1959 mHeap(heap), mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0), 1960 mFrameSize(1), mError(NO_ERROR), mCommandComplete(false) 1961{ 1962} 1963 1964uint32_t MediaPlayerService::AudioCache::latency () const 1965{ 1966 return 0; 1967} 1968 1969float MediaPlayerService::AudioCache::msecsPerFrame() const 1970{ 1971 return mMsecsPerFrame; 1972} 1973 1974status_t MediaPlayerService::AudioCache::getPosition(uint32_t *position) const 1975{ 1976 if (position == 0) return BAD_VALUE; 1977 *position = mSize / mFrameSize; 1978 return NO_ERROR; 1979} 1980 1981status_t MediaPlayerService::AudioCache::getTimestamp(AudioTimestamp &ts) const 1982{ 1983 ts.mPosition = mSize / mFrameSize; 1984 nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC); 1985 ts.mTime.tv_sec = now / 1000000000LL; 1986 ts.mTime.tv_nsec = now - (1000000000LL * ts.mTime.tv_sec); 1987 return NO_ERROR; 1988} 1989 1990status_t MediaPlayerService::AudioCache::getFramesWritten(uint32_t *written) const 1991{ 1992 if (written == 0) return BAD_VALUE; 1993 *written = mSize / mFrameSize; 1994 return NO_ERROR; 1995} 1996 1997//////////////////////////////////////////////////////////////////////////////// 1998 1999struct CallbackThread : public Thread { 2000 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 2001 MediaPlayerBase::AudioSink::AudioCallback cb, 2002 void *cookie); 2003 2004protected: 2005 virtual ~CallbackThread(); 2006 2007 virtual bool threadLoop(); 2008 2009private: 2010 wp<MediaPlayerBase::AudioSink> mSink; 2011 MediaPlayerBase::AudioSink::AudioCallback mCallback; 2012 void *mCookie; 2013 void *mBuffer; 2014 size_t mBufferSize; 2015 2016 CallbackThread(const CallbackThread &); 2017 CallbackThread &operator=(const CallbackThread &); 2018}; 2019 2020CallbackThread::CallbackThread( 2021 const wp<MediaPlayerBase::AudioSink> &sink, 2022 MediaPlayerBase::AudioSink::AudioCallback cb, 2023 void *cookie) 2024 : mSink(sink), 2025 mCallback(cb), 2026 mCookie(cookie), 2027 mBuffer(NULL), 2028 mBufferSize(0) { 2029} 2030 2031CallbackThread::~CallbackThread() { 2032 if (mBuffer) { 2033 free(mBuffer); 2034 mBuffer = NULL; 2035 } 2036} 2037 2038bool CallbackThread::threadLoop() { 2039 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 2040 if (sink == NULL) { 2041 return false; 2042 } 2043 2044 if (mBuffer == NULL) { 2045 mBufferSize = sink->bufferSize(); 2046 mBuffer = malloc(mBufferSize); 2047 } 2048 2049 size_t actualSize = 2050 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie, 2051 MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER); 2052 2053 if (actualSize > 0) { 2054 sink->write(mBuffer, actualSize); 2055 // Could return false on sink->write() error or short count. 2056 // Not necessarily appropriate but would work for AudioCache behavior. 2057 } 2058 2059 return true; 2060} 2061 2062//////////////////////////////////////////////////////////////////////////////// 2063 2064status_t MediaPlayerService::AudioCache::open( 2065 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 2066 audio_format_t format, int bufferCount, 2067 AudioCallback cb, void *cookie, audio_output_flags_t /*flags*/, 2068 const audio_offload_info_t* /*offloadInfo*/) 2069{ 2070 ALOGV("open(%u, %d, 0x%x, %d, %d)", sampleRate, channelCount, channelMask, format, bufferCount); 2071 if (mHeap->getHeapID() < 0) { 2072 return NO_INIT; 2073 } 2074 2075 mSampleRate = sampleRate; 2076 mChannelCount = (uint16_t)channelCount; 2077 mFormat = format; 2078 mMsecsPerFrame = 1.e3 / (float) sampleRate; 2079 mFrameSize = audio_is_linear_pcm(mFormat) 2080 ? mChannelCount * audio_bytes_per_sample(mFormat) : 1; 2081 mFrameCount = mHeap->getSize() / mFrameSize; 2082 2083 if (cb != NULL) { 2084 mCallbackThread = new CallbackThread(this, cb, cookie); 2085 } 2086 return NO_ERROR; 2087} 2088 2089status_t MediaPlayerService::AudioCache::start() { 2090 if (mCallbackThread != NULL) { 2091 mCallbackThread->run("AudioCache callback"); 2092 } 2093 return NO_ERROR; 2094} 2095 2096void MediaPlayerService::AudioCache::stop() { 2097 if (mCallbackThread != NULL) { 2098 mCallbackThread->requestExitAndWait(); 2099 } 2100} 2101 2102ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size) 2103{ 2104 ALOGV("write(%p, %u)", buffer, size); 2105 if ((buffer == 0) || (size == 0)) return size; 2106 2107 uint8_t* p = static_cast<uint8_t*>(mHeap->getBase()); 2108 if (p == NULL) return NO_INIT; 2109 p += mSize; 2110 ALOGV("memcpy(%p, %p, %u)", p, buffer, size); 2111 2112 bool overflow = mSize + size > mHeap->getSize(); 2113 if (overflow) { 2114 ALOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize()); 2115 size = mHeap->getSize() - mSize; 2116 } 2117 size -= size % mFrameSize; // consume only integral amounts of frame size 2118 memcpy(p, buffer, size); 2119 mSize += size; 2120 2121 if (overflow) { 2122 // Signal heap filled here (last frame may be truncated). 2123 // After this point, no more data should be written as the 2124 // heap is filled and the AudioCache should be effectively 2125 // immutable with respect to future writes. 2126 // 2127 // It is thus safe for another thread to read the AudioCache. 2128 mCommandComplete = true; 2129 mSignal.signal(); 2130 } 2131 return size; 2132} 2133 2134// call with lock held 2135status_t MediaPlayerService::AudioCache::wait() 2136{ 2137 Mutex::Autolock lock(mLock); 2138 while (!mCommandComplete) { 2139 mSignal.wait(mLock); 2140 } 2141 mCommandComplete = false; 2142 2143 if (mError == NO_ERROR) { 2144 ALOGV("wait - success"); 2145 } else { 2146 ALOGV("wait - error"); 2147 } 2148 return mError; 2149} 2150 2151void MediaPlayerService::AudioCache::notify( 2152 void* cookie, int msg, int ext1, int ext2, const Parcel* /*obj*/) 2153{ 2154 ALOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2); 2155 AudioCache* p = static_cast<AudioCache*>(cookie); 2156 2157 // ignore buffering messages 2158 switch (msg) 2159 { 2160 case MEDIA_ERROR: 2161 ALOGE("Error %d, %d occurred", ext1, ext2); 2162 break; 2163 case MEDIA_PREPARED: 2164 ALOGV("prepared"); 2165 break; 2166 case MEDIA_PLAYBACK_COMPLETE: 2167 ALOGV("playback complete"); 2168 break; 2169 default: 2170 ALOGV("ignored"); 2171 return; 2172 } 2173 2174 // wake up thread 2175 Mutex::Autolock lock(p->mLock); 2176 if (msg == MEDIA_ERROR) { 2177 p->mError = ext1; 2178 } 2179 p->mCommandComplete = true; 2180 p->mSignal.signal(); 2181} 2182 2183int MediaPlayerService::AudioCache::getSessionId() const 2184{ 2185 return 0; 2186} 2187 2188uint32_t MediaPlayerService::AudioCache::getSampleRate() const 2189{ 2190 if (mMsecsPerFrame == 0) { 2191 return 0; 2192 } 2193 return (uint32_t)(1.e3 / mMsecsPerFrame); 2194} 2195 2196void MediaPlayerService::addBatteryData(uint32_t params) 2197{ 2198 Mutex::Autolock lock(mLock); 2199 2200 int32_t time = systemTime() / 1000000L; 2201 2202 // change audio output devices. This notification comes from AudioFlinger 2203 if ((params & kBatteryDataSpeakerOn) 2204 || (params & kBatteryDataOtherAudioDeviceOn)) { 2205 2206 int deviceOn[NUM_AUDIO_DEVICES]; 2207 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2208 deviceOn[i] = 0; 2209 } 2210 2211 if ((params & kBatteryDataSpeakerOn) 2212 && (params & kBatteryDataOtherAudioDeviceOn)) { 2213 deviceOn[SPEAKER_AND_OTHER] = 1; 2214 } else if (params & kBatteryDataSpeakerOn) { 2215 deviceOn[SPEAKER] = 1; 2216 } else { 2217 deviceOn[OTHER_AUDIO_DEVICE] = 1; 2218 } 2219 2220 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2221 if (mBatteryAudio.deviceOn[i] != deviceOn[i]){ 2222 2223 if (mBatteryAudio.refCount > 0) { // if playing audio 2224 if (!deviceOn[i]) { 2225 mBatteryAudio.lastTime[i] += time; 2226 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2227 mBatteryAudio.lastTime[i] = 0; 2228 } else { 2229 mBatteryAudio.lastTime[i] = 0 - time; 2230 } 2231 } 2232 2233 mBatteryAudio.deviceOn[i] = deviceOn[i]; 2234 } 2235 } 2236 return; 2237 } 2238 2239 // an sudio stream is started 2240 if (params & kBatteryDataAudioFlingerStart) { 2241 // record the start time only if currently no other audio 2242 // is being played 2243 if (mBatteryAudio.refCount == 0) { 2244 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2245 if (mBatteryAudio.deviceOn[i]) { 2246 mBatteryAudio.lastTime[i] -= time; 2247 } 2248 } 2249 } 2250 2251 mBatteryAudio.refCount ++; 2252 return; 2253 2254 } else if (params & kBatteryDataAudioFlingerStop) { 2255 if (mBatteryAudio.refCount <= 0) { 2256 ALOGW("Battery track warning: refCount is <= 0"); 2257 return; 2258 } 2259 2260 // record the stop time only if currently this is the only 2261 // audio being played 2262 if (mBatteryAudio.refCount == 1) { 2263 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2264 if (mBatteryAudio.deviceOn[i]) { 2265 mBatteryAudio.lastTime[i] += time; 2266 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i]; 2267 mBatteryAudio.lastTime[i] = 0; 2268 } 2269 } 2270 } 2271 2272 mBatteryAudio.refCount --; 2273 return; 2274 } 2275 2276 int uid = IPCThreadState::self()->getCallingUid(); 2277 if (uid == AID_MEDIA) { 2278 return; 2279 } 2280 int index = mBatteryData.indexOfKey(uid); 2281 2282 if (index < 0) { // create a new entry for this UID 2283 BatteryUsageInfo info; 2284 info.audioTotalTime = 0; 2285 info.videoTotalTime = 0; 2286 info.audioLastTime = 0; 2287 info.videoLastTime = 0; 2288 info.refCount = 0; 2289 2290 if (mBatteryData.add(uid, info) == NO_MEMORY) { 2291 ALOGE("Battery track error: no memory for new app"); 2292 return; 2293 } 2294 } 2295 2296 BatteryUsageInfo &info = mBatteryData.editValueFor(uid); 2297 2298 if (params & kBatteryDataCodecStarted) { 2299 if (params & kBatteryDataTrackAudio) { 2300 info.audioLastTime -= time; 2301 info.refCount ++; 2302 } 2303 if (params & kBatteryDataTrackVideo) { 2304 info.videoLastTime -= time; 2305 info.refCount ++; 2306 } 2307 } else { 2308 if (info.refCount == 0) { 2309 ALOGW("Battery track warning: refCount is already 0"); 2310 return; 2311 } else if (info.refCount < 0) { 2312 ALOGE("Battery track error: refCount < 0"); 2313 mBatteryData.removeItem(uid); 2314 return; 2315 } 2316 2317 if (params & kBatteryDataTrackAudio) { 2318 info.audioLastTime += time; 2319 info.refCount --; 2320 } 2321 if (params & kBatteryDataTrackVideo) { 2322 info.videoLastTime += time; 2323 info.refCount --; 2324 } 2325 2326 // no stream is being played by this UID 2327 if (info.refCount == 0) { 2328 info.audioTotalTime += info.audioLastTime; 2329 info.audioLastTime = 0; 2330 info.videoTotalTime += info.videoLastTime; 2331 info.videoLastTime = 0; 2332 } 2333 } 2334} 2335 2336status_t MediaPlayerService::pullBatteryData(Parcel* reply) { 2337 Mutex::Autolock lock(mLock); 2338 2339 // audio output devices usage 2340 int32_t time = systemTime() / 1000000L; //in ms 2341 int32_t totalTime; 2342 2343 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) { 2344 totalTime = mBatteryAudio.totalTime[i]; 2345 2346 if (mBatteryAudio.deviceOn[i] 2347 && (mBatteryAudio.lastTime[i] != 0)) { 2348 int32_t tmpTime = mBatteryAudio.lastTime[i] + time; 2349 totalTime += tmpTime; 2350 } 2351 2352 reply->writeInt32(totalTime); 2353 // reset the total time 2354 mBatteryAudio.totalTime[i] = 0; 2355 } 2356 2357 // codec usage 2358 BatteryUsageInfo info; 2359 int size = mBatteryData.size(); 2360 2361 reply->writeInt32(size); 2362 int i = 0; 2363 2364 while (i < size) { 2365 info = mBatteryData.valueAt(i); 2366 2367 reply->writeInt32(mBatteryData.keyAt(i)); //UID 2368 reply->writeInt32(info.audioTotalTime); 2369 reply->writeInt32(info.videoTotalTime); 2370 2371 info.audioTotalTime = 0; 2372 info.videoTotalTime = 0; 2373 2374 // remove the UID entry where no stream is being played 2375 if (info.refCount <= 0) { 2376 mBatteryData.removeItemsAt(i); 2377 size --; 2378 i --; 2379 } 2380 i++; 2381 } 2382 return NO_ERROR; 2383} 2384} // namespace android 2385