MediaPlayerService.cpp revision fdf23c711d5d6094c95b43cdc9356a25d67f10c8
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 <dirent.h> 27#include <unistd.h> 28 29#include <string.h> 30 31#include <cutils/atomic.h> 32#include <cutils/properties.h> // for property_get 33 34#include <utils/misc.h> 35 36#include <android_runtime/ActivityManager.h> 37 38#include <binder/IPCThreadState.h> 39#include <binder/IServiceManager.h> 40#include <binder/MemoryHeapBase.h> 41#include <binder/MemoryBase.h> 42#include <utils/Errors.h> // for status_t 43#include <utils/String8.h> 44#include <utils/Vector.h> 45#include <cutils/properties.h> 46 47#include <media/MediaPlayerInterface.h> 48#include <media/mediarecorder.h> 49#include <media/MediaMetadataRetrieverInterface.h> 50#include <media/Metadata.h> 51#include <media/AudioTrack.h> 52 53#include "MediaRecorderClient.h" 54#include "MediaPlayerService.h" 55#include "MetadataRetrieverClient.h" 56 57#include "MidiFile.h" 58#include "VorbisPlayer.h" 59#include <media/PVPlayer.h> 60#include "TestPlayerStub.h" 61#include "StagefrightPlayer.h" 62 63#include <OMX.h> 64 65/* desktop Linux needs a little help with gettid() */ 66#if defined(HAVE_GETTID) && !defined(HAVE_ANDROID_OS) 67#define __KERNEL__ 68# include <linux/unistd.h> 69#ifdef _syscall0 70_syscall0(pid_t,gettid) 71#else 72pid_t gettid() { return syscall(__NR_gettid);} 73#endif 74#undef __KERNEL__ 75#endif 76 77namespace { 78using android::media::Metadata; 79using android::status_t; 80using android::OK; 81using android::BAD_VALUE; 82using android::NOT_ENOUGH_DATA; 83using android::Parcel; 84 85// Max number of entries in the filter. 86const int kMaxFilterSize = 64; // I pulled that out of thin air. 87 88// FIXME: Move all the metadata related function in the Metadata.cpp 89 90 91// Unmarshall a filter from a Parcel. 92// Filter format in a parcel: 93// 94// 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 95// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 96// | number of entries (n) | 97// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 98// | metadata type 1 | 99// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 100// | metadata type 2 | 101// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 102// .... 103// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 104// | metadata type n | 105// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 106// 107// @param p Parcel that should start with a filter. 108// @param[out] filter On exit contains the list of metadata type to be 109// filtered. 110// @param[out] status On exit contains the status code to be returned. 111// @return true if the parcel starts with a valid filter. 112bool unmarshallFilter(const Parcel& p, 113 Metadata::Filter *filter, 114 status_t *status) 115{ 116 int32_t val; 117 if (p.readInt32(&val) != OK) 118 { 119 LOGE("Failed to read filter's length"); 120 *status = NOT_ENOUGH_DATA; 121 return false; 122 } 123 124 if( val > kMaxFilterSize || val < 0) 125 { 126 LOGE("Invalid filter len %d", val); 127 *status = BAD_VALUE; 128 return false; 129 } 130 131 const size_t num = val; 132 133 filter->clear(); 134 filter->setCapacity(num); 135 136 size_t size = num * sizeof(Metadata::Type); 137 138 139 if (p.dataAvail() < size) 140 { 141 LOGE("Filter too short expected %d but got %d", size, p.dataAvail()); 142 *status = NOT_ENOUGH_DATA; 143 return false; 144 } 145 146 const Metadata::Type *data = 147 static_cast<const Metadata::Type*>(p.readInplace(size)); 148 149 if (NULL == data) 150 { 151 LOGE("Filter had no data"); 152 *status = BAD_VALUE; 153 return false; 154 } 155 156 // TODO: The stl impl of vector would be more efficient here 157 // because it degenerates into a memcpy on pod types. Try to 158 // replace later or use stl::set. 159 for (size_t i = 0; i < num; ++i) 160 { 161 filter->add(*data); 162 ++data; 163 } 164 *status = OK; 165 return true; 166} 167 168// @param filter Of metadata type. 169// @param val To be searched. 170// @return true if a match was found. 171bool findMetadata(const Metadata::Filter& filter, const int32_t val) 172{ 173 // Deal with empty and ANY right away 174 if (filter.isEmpty()) return false; 175 if (filter[0] == Metadata::kAny) return true; 176 177 return filter.indexOf(val) >= 0; 178} 179 180} // anonymous namespace 181 182 183namespace android { 184 185// TODO: Temp hack until we can register players 186typedef struct { 187 const char *extension; 188 const player_type playertype; 189} extmap; 190extmap FILE_EXTS [] = { 191 {".mid", SONIVOX_PLAYER}, 192 {".midi", SONIVOX_PLAYER}, 193 {".smf", SONIVOX_PLAYER}, 194 {".xmf", SONIVOX_PLAYER}, 195 {".imy", SONIVOX_PLAYER}, 196 {".rtttl", SONIVOX_PLAYER}, 197 {".rtx", SONIVOX_PLAYER}, 198 {".ota", SONIVOX_PLAYER}, 199 {".ogg", VORBIS_PLAYER}, 200 {".oga", VORBIS_PLAYER}, 201}; 202 203// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround 204/* static */ const uint32_t MediaPlayerService::AudioOutput::kAudioVideoDelayMs = 0; 205/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4; 206/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false; 207 208void MediaPlayerService::instantiate() { 209 defaultServiceManager()->addService( 210 String16("media.player"), new MediaPlayerService()); 211} 212 213MediaPlayerService::MediaPlayerService() 214{ 215 LOGV("MediaPlayerService created"); 216 mNextConnId = 1; 217} 218 219MediaPlayerService::~MediaPlayerService() 220{ 221 LOGV("MediaPlayerService destroyed"); 222} 223 224sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(pid_t pid) 225{ 226#ifndef NO_OPENCORE 227 sp<MediaRecorderClient> recorder = new MediaRecorderClient(pid); 228#else 229 sp<MediaRecorderClient> recorder = NULL; 230#endif 231 LOGV("Create new media recorder client from pid %d", pid); 232 return recorder; 233} 234 235sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever(pid_t pid) 236{ 237 sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid); 238 LOGV("Create new media retriever from pid %d", pid); 239 return retriever; 240} 241 242sp<IMediaPlayer> MediaPlayerService::create(pid_t pid, const sp<IMediaPlayerClient>& client, const char* url) 243{ 244 int32_t connId = android_atomic_inc(&mNextConnId); 245 sp<Client> c = new Client(this, pid, connId, client); 246 LOGV("Create new client(%d) from pid %d, url=%s, connId=%d", connId, pid, url, connId); 247 if (NO_ERROR != c->setDataSource(url)) 248 { 249 c.clear(); 250 return c; 251 } 252 wp<Client> w = c; 253 Mutex::Autolock lock(mLock); 254 mClients.add(w); 255 return c; 256} 257 258sp<IMediaPlayer> MediaPlayerService::create(pid_t pid, const sp<IMediaPlayerClient>& client, 259 int fd, int64_t offset, int64_t length) 260{ 261 int32_t connId = android_atomic_inc(&mNextConnId); 262 sp<Client> c = new Client(this, pid, connId, client); 263 LOGV("Create new client(%d) from pid %d, fd=%d, offset=%lld, length=%lld", 264 connId, pid, fd, offset, length); 265 if (NO_ERROR != c->setDataSource(fd, offset, length)) { 266 c.clear(); 267 } else { 268 wp<Client> w = c; 269 Mutex::Autolock lock(mLock); 270 mClients.add(w); 271 } 272 ::close(fd); 273 return c; 274} 275 276sp<IOMX> MediaPlayerService::createOMX() { 277 return new OMX; 278} 279 280status_t MediaPlayerService::AudioCache::dump(int fd, const Vector<String16>& args) const 281{ 282 const size_t SIZE = 256; 283 char buffer[SIZE]; 284 String8 result; 285 286 result.append(" AudioCache\n"); 287 if (mHeap != 0) { 288 snprintf(buffer, 255, " heap base(%p), size(%d), flags(%d), device(%s)\n", 289 mHeap->getBase(), mHeap->getSize(), mHeap->getFlags(), mHeap->getDevice()); 290 result.append(buffer); 291 } 292 snprintf(buffer, 255, " msec per frame(%f), channel count(%d), format(%d), frame count(%ld)\n", 293 mMsecsPerFrame, mChannelCount, mFormat, mFrameCount); 294 result.append(buffer); 295 snprintf(buffer, 255, " sample rate(%d), size(%d), error(%d), command complete(%s)\n", 296 mSampleRate, mSize, mError, mCommandComplete?"true":"false"); 297 result.append(buffer); 298 ::write(fd, result.string(), result.size()); 299 return NO_ERROR; 300} 301 302status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const 303{ 304 const size_t SIZE = 256; 305 char buffer[SIZE]; 306 String8 result; 307 308 result.append(" AudioOutput\n"); 309 snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", 310 mStreamType, mLeftVolume, mRightVolume); 311 result.append(buffer); 312 snprintf(buffer, 255, " msec per frame(%f), latency (%d)\n", 313 mMsecsPerFrame, mLatency); 314 result.append(buffer); 315 ::write(fd, result.string(), result.size()); 316 if (mTrack != 0) { 317 mTrack->dump(fd, args); 318 } 319 return NO_ERROR; 320} 321 322status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) const 323{ 324 const size_t SIZE = 256; 325 char buffer[SIZE]; 326 String8 result; 327 result.append(" Client\n"); 328 snprintf(buffer, 255, " pid(%d), connId(%d), status(%d), looping(%s)\n", 329 mPid, mConnId, mStatus, mLoop?"true": "false"); 330 result.append(buffer); 331 write(fd, result.string(), result.size()); 332 if (mAudioOutput != 0) { 333 mAudioOutput->dump(fd, args); 334 } 335 write(fd, "\n", 1); 336 return NO_ERROR; 337} 338 339static int myTid() { 340#ifdef HAVE_GETTID 341 return gettid(); 342#else 343 return getpid(); 344#endif 345} 346 347#if defined(__arm__) 348extern "C" void get_malloc_leak_info(uint8_t** info, size_t* overallSize, 349 size_t* infoSize, size_t* totalMemory, size_t* backtraceSize); 350extern "C" void free_malloc_leak_info(uint8_t* info); 351 352void memStatus(int fd, const Vector<String16>& args) 353{ 354 const size_t SIZE = 256; 355 char buffer[SIZE]; 356 String8 result; 357 358 typedef struct { 359 size_t size; 360 size_t dups; 361 intptr_t * backtrace; 362 } AllocEntry; 363 364 uint8_t *info = NULL; 365 size_t overallSize = 0; 366 size_t infoSize = 0; 367 size_t totalMemory = 0; 368 size_t backtraceSize = 0; 369 370 get_malloc_leak_info(&info, &overallSize, &infoSize, &totalMemory, &backtraceSize); 371 if (info) { 372 uint8_t *ptr = info; 373 size_t count = overallSize / infoSize; 374 375 snprintf(buffer, SIZE, " Allocation count %i\n", count); 376 result.append(buffer); 377 378 AllocEntry * entries = new AllocEntry[count]; 379 380 for (size_t i = 0; i < count; i++) { 381 // Each entry should be size_t, size_t, intptr_t[backtraceSize] 382 AllocEntry *e = &entries[i]; 383 384 e->size = *reinterpret_cast<size_t *>(ptr); 385 ptr += sizeof(size_t); 386 387 e->dups = *reinterpret_cast<size_t *>(ptr); 388 ptr += sizeof(size_t); 389 390 e->backtrace = reinterpret_cast<intptr_t *>(ptr); 391 ptr += sizeof(intptr_t) * backtraceSize; 392 } 393 394 // Now we need to sort the entries. They come sorted by size but 395 // not by stack trace which causes problems using diff. 396 bool moved; 397 do { 398 moved = false; 399 for (size_t i = 0; i < (count - 1); i++) { 400 AllocEntry *e1 = &entries[i]; 401 AllocEntry *e2 = &entries[i+1]; 402 403 bool swap = e1->size < e2->size; 404 if (e1->size == e2->size) { 405 for(size_t j = 0; j < backtraceSize; j++) { 406 if (e1->backtrace[j] == e2->backtrace[j]) { 407 continue; 408 } 409 swap = e1->backtrace[j] < e2->backtrace[j]; 410 break; 411 } 412 } 413 if (swap) { 414 AllocEntry t = entries[i]; 415 entries[i] = entries[i+1]; 416 entries[i+1] = t; 417 moved = true; 418 } 419 } 420 } while (moved); 421 422 for (size_t i = 0; i < count; i++) { 423 AllocEntry *e = &entries[i]; 424 425 snprintf(buffer, SIZE, "size %8i, dup %4i", e->size, e->dups); 426 result.append(buffer); 427 for (size_t ct = 0; (ct < backtraceSize) && e->backtrace[ct]; ct++) { 428 if (ct) { 429 result.append(", "); 430 } 431 snprintf(buffer, SIZE, "0x%08x", e->backtrace[ct]); 432 result.append(buffer); 433 } 434 result.append("\n"); 435 } 436 437 delete[] entries; 438 free_malloc_leak_info(info); 439 } 440 441 write(fd, result.string(), result.size()); 442} 443#endif 444 445status_t MediaPlayerService::dump(int fd, const Vector<String16>& args) 446{ 447 const size_t SIZE = 256; 448 char buffer[SIZE]; 449 String8 result; 450 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 451 snprintf(buffer, SIZE, "Permission Denial: " 452 "can't dump MediaPlayerService from pid=%d, uid=%d\n", 453 IPCThreadState::self()->getCallingPid(), 454 IPCThreadState::self()->getCallingUid()); 455 result.append(buffer); 456 } else { 457 Mutex::Autolock lock(mLock); 458 for (int i = 0, n = mClients.size(); i < n; ++i) { 459 sp<Client> c = mClients[i].promote(); 460 if (c != 0) c->dump(fd, args); 461 } 462 result.append(" Files opened and/or mapped:\n"); 463 snprintf(buffer, SIZE, "/proc/%d/maps", myTid()); 464 FILE *f = fopen(buffer, "r"); 465 if (f) { 466 while (!feof(f)) { 467 fgets(buffer, SIZE, f); 468 if (strstr(buffer, " /sdcard/") || 469 strstr(buffer, " /system/sounds/") || 470 strstr(buffer, " /system/media/")) { 471 result.append(" "); 472 result.append(buffer); 473 } 474 } 475 fclose(f); 476 } else { 477 result.append("couldn't open "); 478 result.append(buffer); 479 result.append("\n"); 480 } 481 482 snprintf(buffer, SIZE, "/proc/%d/fd", myTid()); 483 DIR *d = opendir(buffer); 484 if (d) { 485 struct dirent *ent; 486 while((ent = readdir(d)) != NULL) { 487 if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) { 488 snprintf(buffer, SIZE, "/proc/%d/fd/%s", myTid(), ent->d_name); 489 struct stat s; 490 if (lstat(buffer, &s) == 0) { 491 if ((s.st_mode & S_IFMT) == S_IFLNK) { 492 char linkto[256]; 493 int len = readlink(buffer, linkto, sizeof(linkto)); 494 if(len > 0) { 495 if(len > 255) { 496 linkto[252] = '.'; 497 linkto[253] = '.'; 498 linkto[254] = '.'; 499 linkto[255] = 0; 500 } else { 501 linkto[len] = 0; 502 } 503 if (strstr(linkto, "/sdcard/") == linkto || 504 strstr(linkto, "/system/sounds/") == linkto || 505 strstr(linkto, "/system/media/") == linkto) { 506 result.append(" "); 507 result.append(buffer); 508 result.append(" -> "); 509 result.append(linkto); 510 result.append("\n"); 511 } 512 } 513 } else { 514 result.append(" unexpected type for "); 515 result.append(buffer); 516 result.append("\n"); 517 } 518 } 519 } 520 } 521 closedir(d); 522 } else { 523 result.append("couldn't open "); 524 result.append(buffer); 525 result.append("\n"); 526 } 527 528#if defined(__arm__) 529 bool dumpMem = false; 530 for (size_t i = 0; i < args.size(); i++) { 531 if (args[i] == String16("-m")) { 532 dumpMem = true; 533 } 534 } 535 if (dumpMem) { 536 memStatus(fd, args); 537 } 538#endif 539 } 540 write(fd, result.string(), result.size()); 541 return NO_ERROR; 542} 543 544void MediaPlayerService::removeClient(wp<Client> client) 545{ 546 Mutex::Autolock lock(mLock); 547 mClients.remove(client); 548} 549 550MediaPlayerService::Client::Client(const sp<MediaPlayerService>& service, pid_t pid, 551 int32_t connId, const sp<IMediaPlayerClient>& client) 552{ 553 LOGV("Client(%d) constructor", connId); 554 mPid = pid; 555 mConnId = connId; 556 mService = service; 557 mClient = client; 558 mLoop = false; 559 mStatus = NO_INIT; 560#if CALLBACK_ANTAGONIZER 561 LOGD("create Antagonizer"); 562 mAntagonizer = new Antagonizer(notify, this); 563#endif 564} 565 566MediaPlayerService::Client::~Client() 567{ 568 LOGV("Client(%d) destructor pid = %d", mConnId, mPid); 569 mAudioOutput.clear(); 570 wp<Client> client(this); 571 disconnect(); 572 mService->removeClient(client); 573} 574 575void MediaPlayerService::Client::disconnect() 576{ 577 LOGV("disconnect(%d) from pid %d", mConnId, mPid); 578 // grab local reference and clear main reference to prevent future 579 // access to object 580 sp<MediaPlayerBase> p; 581 { 582 Mutex::Autolock l(mLock); 583 p = mPlayer; 584 } 585 mClient.clear(); 586 587 mPlayer.clear(); 588 589 // clear the notification to prevent callbacks to dead client 590 // and reset the player. We assume the player will serialize 591 // access to itself if necessary. 592 if (p != 0) { 593 p->setNotifyCallback(0, 0); 594#if CALLBACK_ANTAGONIZER 595 LOGD("kill Antagonizer"); 596 mAntagonizer->kill(); 597#endif 598 p->reset(); 599 } 600 601 IPCThreadState::self()->flushCommands(); 602} 603 604static player_type getDefaultPlayerType() { 605#if BUILD_WITH_FULL_STAGEFRIGHT 606 char value[PROPERTY_VALUE_MAX]; 607 if (property_get("media.stagefright.enable-player", value, NULL) 608 && (!strcmp(value, "1") || !strcasecmp(value, "true"))) { 609 return STAGEFRIGHT_PLAYER; 610 } 611#endif 612 613 return PV_PLAYER; 614} 615 616player_type getPlayerType(int fd, int64_t offset, int64_t length) 617{ 618 char buf[20]; 619 lseek(fd, offset, SEEK_SET); 620 read(fd, buf, sizeof(buf)); 621 lseek(fd, offset, SEEK_SET); 622 623 long ident = *((long*)buf); 624 625 // Ogg vorbis? 626 if (ident == 0x5367674f) // 'OggS' 627 return VORBIS_PLAYER; 628 629 // Some kind of MIDI? 630 EAS_DATA_HANDLE easdata; 631 if (EAS_Init(&easdata) == EAS_SUCCESS) { 632 EAS_FILE locator; 633 locator.path = NULL; 634 locator.fd = fd; 635 locator.offset = offset; 636 locator.length = length; 637 EAS_HANDLE eashandle; 638 if (EAS_OpenFile(easdata, &locator, &eashandle) == EAS_SUCCESS) { 639 EAS_CloseFile(easdata, eashandle); 640 EAS_Shutdown(easdata); 641 return SONIVOX_PLAYER; 642 } 643 EAS_Shutdown(easdata); 644 } 645 646 return getDefaultPlayerType(); 647} 648 649player_type getPlayerType(const char* url) 650{ 651 if (TestPlayerStub::canBeUsed(url)) { 652 return TEST_PLAYER; 653 } 654 655 // use MidiFile for MIDI extensions 656 int lenURL = strlen(url); 657 for (int i = 0; i < NELEM(FILE_EXTS); ++i) { 658 int len = strlen(FILE_EXTS[i].extension); 659 int start = lenURL - len; 660 if (start > 0) { 661 if (!strncmp(url + start, FILE_EXTS[i].extension, len)) { 662 return FILE_EXTS[i].playertype; 663 } 664 } 665 } 666 667 return getDefaultPlayerType(); 668} 669 670static sp<MediaPlayerBase> createPlayer(player_type playerType, void* cookie, 671 notify_callback_f notifyFunc) 672{ 673 sp<MediaPlayerBase> p; 674 switch (playerType) { 675#ifndef NO_OPENCORE 676 case PV_PLAYER: 677 LOGV(" create PVPlayer"); 678 p = new PVPlayer(); 679 break; 680#endif 681 case SONIVOX_PLAYER: 682 LOGV(" create MidiFile"); 683 p = new MidiFile(); 684 break; 685 case VORBIS_PLAYER: 686 LOGV(" create VorbisPlayer"); 687 p = new VorbisPlayer(); 688 break; 689#if BUILD_WITH_FULL_STAGEFRIGHT 690 case STAGEFRIGHT_PLAYER: 691 LOGV(" create StagefrightPlayer"); 692 p = new StagefrightPlayer; 693 break; 694#endif 695 case TEST_PLAYER: 696 LOGV("Create Test Player stub"); 697 p = new TestPlayerStub(); 698 break; 699 } 700 if (p != NULL) { 701 if (p->initCheck() == NO_ERROR) { 702 p->setNotifyCallback(cookie, notifyFunc); 703 } else { 704 p.clear(); 705 } 706 } 707 if (p == NULL) { 708 LOGE("Failed to create player object"); 709 } 710 return p; 711} 712 713sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) 714{ 715 // determine if we have the right player type 716 sp<MediaPlayerBase> p = mPlayer; 717 if ((p != NULL) && (p->playerType() != playerType)) { 718 LOGV("delete player"); 719 p.clear(); 720 } 721 if (p == NULL) { 722 p = android::createPlayer(playerType, this, notify); 723 } 724 return p; 725} 726 727status_t MediaPlayerService::Client::setDataSource(const char *url) 728{ 729 LOGV("setDataSource(%s)", url); 730 if (url == NULL) 731 return UNKNOWN_ERROR; 732 733 if (strncmp(url, "content://", 10) == 0) { 734 // get a filedescriptor for the content Uri and 735 // pass it to the setDataSource(fd) method 736 737 String16 url16(url); 738 int fd = android::openContentProviderFile(url16); 739 if (fd < 0) 740 { 741 LOGE("Couldn't open fd for %s", url); 742 return UNKNOWN_ERROR; 743 } 744 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 745 close(fd); 746 return mStatus; 747 } else { 748 player_type playerType = getPlayerType(url); 749 LOGV("player type = %d", playerType); 750 751 // create the right type of player 752 sp<MediaPlayerBase> p = createPlayer(playerType); 753 if (p == NULL) return NO_INIT; 754 755 if (!p->hardwareOutput()) { 756 mAudioOutput = new AudioOutput(); 757 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 758 } 759 760 // now set data source 761 LOGV(" setDataSource"); 762 mStatus = p->setDataSource(url); 763 if (mStatus == NO_ERROR) { 764 mPlayer = p; 765 } else { 766 LOGE(" error: %d", mStatus); 767 } 768 return mStatus; 769 } 770} 771 772status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 773{ 774 LOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length); 775 struct stat sb; 776 int ret = fstat(fd, &sb); 777 if (ret != 0) { 778 LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 779 return UNKNOWN_ERROR; 780 } 781 782 LOGV("st_dev = %llu", sb.st_dev); 783 LOGV("st_mode = %u", sb.st_mode); 784 LOGV("st_uid = %lu", sb.st_uid); 785 LOGV("st_gid = %lu", sb.st_gid); 786 LOGV("st_size = %llu", sb.st_size); 787 788 if (offset >= sb.st_size) { 789 LOGE("offset error"); 790 ::close(fd); 791 return UNKNOWN_ERROR; 792 } 793 if (offset + length > sb.st_size) { 794 length = sb.st_size - offset; 795 LOGV("calculated length = %lld", length); 796 } 797 798 player_type playerType = getPlayerType(fd, offset, length); 799 LOGV("player type = %d", playerType); 800 801 // create the right type of player 802 sp<MediaPlayerBase> p = createPlayer(playerType); 803 if (p == NULL) return NO_INIT; 804 805 if (!p->hardwareOutput()) { 806 mAudioOutput = new AudioOutput(); 807 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 808 } 809 810 // now set data source 811 mStatus = p->setDataSource(fd, offset, length); 812 if (mStatus == NO_ERROR) mPlayer = p; 813 return mStatus; 814} 815 816status_t MediaPlayerService::Client::setVideoSurface(const sp<ISurface>& surface) 817{ 818 LOGV("[%d] setVideoSurface(%p)", mConnId, surface.get()); 819 sp<MediaPlayerBase> p = getPlayer(); 820 if (p == 0) return UNKNOWN_ERROR; 821 return p->setVideoSurface(surface); 822} 823 824status_t MediaPlayerService::Client::invoke(const Parcel& request, 825 Parcel *reply) 826{ 827 sp<MediaPlayerBase> p = getPlayer(); 828 if (p == NULL) return UNKNOWN_ERROR; 829 return p->invoke(request, reply); 830} 831 832// This call doesn't need to access the native player. 833status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 834{ 835 status_t status; 836 media::Metadata::Filter allow, drop; 837 838 if (unmarshallFilter(filter, &allow, &status) && 839 unmarshallFilter(filter, &drop, &status)) { 840 Mutex::Autolock lock(mLock); 841 842 mMetadataAllow = allow; 843 mMetadataDrop = drop; 844 } 845 return status; 846} 847 848status_t MediaPlayerService::Client::getMetadata( 849 bool update_only, bool apply_filter, Parcel *reply) 850{ 851 sp<MediaPlayerBase> player = getPlayer(); 852 if (player == 0) return UNKNOWN_ERROR; 853 854 status_t status; 855 // Placeholder for the return code, updated by the caller. 856 reply->writeInt32(-1); 857 858 media::Metadata::Filter ids; 859 860 // We don't block notifications while we fetch the data. We clear 861 // mMetadataUpdated first so we don't lose notifications happening 862 // during the rest of this call. 863 { 864 Mutex::Autolock lock(mLock); 865 if (update_only) { 866 ids = mMetadataUpdated; 867 } 868 mMetadataUpdated.clear(); 869 } 870 871 media::Metadata metadata(reply); 872 873 metadata.appendHeader(); 874 status = player->getMetadata(ids, reply); 875 876 if (status != OK) { 877 metadata.resetParcel(); 878 LOGE("getMetadata failed %d", status); 879 return status; 880 } 881 882 // FIXME: Implement filtering on the result. Not critical since 883 // filtering takes place on the update notifications already. This 884 // would be when all the metadata are fetch and a filter is set. 885 886 // Everything is fine, update the metadata length. 887 metadata.updateLength(); 888 return OK; 889} 890 891status_t MediaPlayerService::Client::prepareAsync() 892{ 893 LOGV("[%d] prepareAsync", mConnId); 894 sp<MediaPlayerBase> p = getPlayer(); 895 if (p == 0) return UNKNOWN_ERROR; 896 status_t ret = p->prepareAsync(); 897#if CALLBACK_ANTAGONIZER 898 LOGD("start Antagonizer"); 899 if (ret == NO_ERROR) mAntagonizer->start(); 900#endif 901 return ret; 902} 903 904status_t MediaPlayerService::Client::start() 905{ 906 LOGV("[%d] start", mConnId); 907 sp<MediaPlayerBase> p = getPlayer(); 908 if (p == 0) return UNKNOWN_ERROR; 909 p->setLooping(mLoop); 910 return p->start(); 911} 912 913status_t MediaPlayerService::Client::stop() 914{ 915 LOGV("[%d] stop", mConnId); 916 sp<MediaPlayerBase> p = getPlayer(); 917 if (p == 0) return UNKNOWN_ERROR; 918 return p->stop(); 919} 920 921status_t MediaPlayerService::Client::pause() 922{ 923 LOGV("[%d] pause", mConnId); 924 sp<MediaPlayerBase> p = getPlayer(); 925 if (p == 0) return UNKNOWN_ERROR; 926 return p->pause(); 927} 928 929status_t MediaPlayerService::Client::isPlaying(bool* state) 930{ 931 *state = false; 932 sp<MediaPlayerBase> p = getPlayer(); 933 if (p == 0) return UNKNOWN_ERROR; 934 *state = p->isPlaying(); 935 LOGV("[%d] isPlaying: %d", mConnId, *state); 936 return NO_ERROR; 937} 938 939status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 940{ 941 LOGV("getCurrentPosition"); 942 sp<MediaPlayerBase> p = getPlayer(); 943 if (p == 0) return UNKNOWN_ERROR; 944 status_t ret = p->getCurrentPosition(msec); 945 if (ret == NO_ERROR) { 946 LOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 947 } else { 948 LOGE("getCurrentPosition returned %d", ret); 949 } 950 return ret; 951} 952 953status_t MediaPlayerService::Client::getDuration(int *msec) 954{ 955 LOGV("getDuration"); 956 sp<MediaPlayerBase> p = getPlayer(); 957 if (p == 0) return UNKNOWN_ERROR; 958 status_t ret = p->getDuration(msec); 959 if (ret == NO_ERROR) { 960 LOGV("[%d] getDuration = %d", mConnId, *msec); 961 } else { 962 LOGE("getDuration returned %d", ret); 963 } 964 return ret; 965} 966 967status_t MediaPlayerService::Client::seekTo(int msec) 968{ 969 LOGV("[%d] seekTo(%d)", mConnId, msec); 970 sp<MediaPlayerBase> p = getPlayer(); 971 if (p == 0) return UNKNOWN_ERROR; 972 return p->seekTo(msec); 973} 974 975status_t MediaPlayerService::Client::reset() 976{ 977 LOGV("[%d] reset", mConnId); 978 sp<MediaPlayerBase> p = getPlayer(); 979 if (p == 0) return UNKNOWN_ERROR; 980 return p->reset(); 981} 982 983status_t MediaPlayerService::Client::setAudioStreamType(int type) 984{ 985 LOGV("[%d] setAudioStreamType(%d)", mConnId, type); 986 // TODO: for hardware output, call player instead 987 Mutex::Autolock l(mLock); 988 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 989 return NO_ERROR; 990} 991 992status_t MediaPlayerService::Client::setLooping(int loop) 993{ 994 LOGV("[%d] setLooping(%d)", mConnId, loop); 995 mLoop = loop; 996 sp<MediaPlayerBase> p = getPlayer(); 997 if (p != 0) return p->setLooping(loop); 998 return NO_ERROR; 999} 1000 1001status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1002{ 1003 LOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1004 // TODO: for hardware output, call player instead 1005 Mutex::Autolock l(mLock); 1006 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1007 return NO_ERROR; 1008} 1009 1010 1011void MediaPlayerService::Client::notify(void* cookie, int msg, int ext1, int ext2) 1012{ 1013 Client* client = static_cast<Client*>(cookie); 1014 1015 if (MEDIA_INFO == msg && 1016 MEDIA_INFO_METADATA_UPDATE == ext1) { 1017 const media::Metadata::Type metadata_type = ext2; 1018 1019 if(client->shouldDropMetadata(metadata_type)) { 1020 return; 1021 } 1022 1023 // Update the list of metadata that have changed. getMetadata 1024 // also access mMetadataUpdated and clears it. 1025 client->addNewMetadataUpdate(metadata_type); 1026 } 1027 LOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1028 client->mClient->notify(msg, ext1, ext2); 1029} 1030 1031 1032bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1033{ 1034 Mutex::Autolock lock(mLock); 1035 1036 if (findMetadata(mMetadataDrop, code)) { 1037 return true; 1038 } 1039 1040 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1041 return false; 1042 } else { 1043 return true; 1044 } 1045} 1046 1047 1048void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1049 Mutex::Autolock lock(mLock); 1050 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1051 mMetadataUpdated.add(metadata_type); 1052 } 1053} 1054 1055#if CALLBACK_ANTAGONIZER 1056const int Antagonizer::interval = 10000; // 10 msecs 1057 1058Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1059 mExit(false), mActive(false), mClient(client), mCb(cb) 1060{ 1061 createThread(callbackThread, this); 1062} 1063 1064void Antagonizer::kill() 1065{ 1066 Mutex::Autolock _l(mLock); 1067 mActive = false; 1068 mExit = true; 1069 mCondition.wait(mLock); 1070} 1071 1072int Antagonizer::callbackThread(void* user) 1073{ 1074 LOGD("Antagonizer started"); 1075 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1076 while (!p->mExit) { 1077 if (p->mActive) { 1078 LOGV("send event"); 1079 p->mCb(p->mClient, 0, 0, 0); 1080 } 1081 usleep(interval); 1082 } 1083 Mutex::Autolock _l(p->mLock); 1084 p->mCondition.signal(); 1085 LOGD("Antagonizer stopped"); 1086 return 0; 1087} 1088#endif 1089 1090static size_t kDefaultHeapSize = 1024 * 1024; // 1MB 1091 1092sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 1093{ 1094 LOGV("decode(%s)", url); 1095 sp<MemoryBase> mem; 1096 sp<MediaPlayerBase> player; 1097 1098 // Protect our precious, precious DRMd ringtones by only allowing 1099 // decoding of http, but not filesystem paths or content Uris. 1100 // If the application wants to decode those, it should open a 1101 // filedescriptor for them and use that. 1102 if (url != NULL && strncmp(url, "http://", 7) != 0) { 1103 LOGD("Can't decode %s by path, use filedescriptor instead", url); 1104 return mem; 1105 } 1106 1107 player_type playerType = getPlayerType(url); 1108 LOGV("player type = %d", playerType); 1109 1110 // create the right type of player 1111 sp<AudioCache> cache = new AudioCache(url); 1112 player = android::createPlayer(playerType, cache.get(), cache->notify); 1113 if (player == NULL) goto Exit; 1114 if (player->hardwareOutput()) goto Exit; 1115 1116 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1117 1118 // set data source 1119 if (player->setDataSource(url) != NO_ERROR) goto Exit; 1120 1121 LOGV("prepare"); 1122 player->prepareAsync(); 1123 1124 LOGV("wait for prepare"); 1125 if (cache->wait() != NO_ERROR) goto Exit; 1126 1127 LOGV("start"); 1128 player->start(); 1129 1130 LOGV("wait for playback complete"); 1131 if (cache->wait() != NO_ERROR) goto Exit; 1132 1133 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1134 *pSampleRate = cache->sampleRate(); 1135 *pNumChannels = cache->channelCount(); 1136 *pFormat = cache->format(); 1137 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1138 1139Exit: 1140 if (player != 0) player->reset(); 1141 return mem; 1142} 1143 1144sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 1145{ 1146 LOGV("decode(%d, %lld, %lld)", fd, offset, length); 1147 sp<MemoryBase> mem; 1148 sp<MediaPlayerBase> player; 1149 1150 player_type playerType = getPlayerType(fd, offset, length); 1151 LOGV("player type = %d", playerType); 1152 1153 // create the right type of player 1154 sp<AudioCache> cache = new AudioCache("decode_fd"); 1155 player = android::createPlayer(playerType, cache.get(), cache->notify); 1156 if (player == NULL) goto Exit; 1157 if (player->hardwareOutput()) goto Exit; 1158 1159 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1160 1161 // set data source 1162 if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit; 1163 1164 LOGV("prepare"); 1165 player->prepareAsync(); 1166 1167 LOGV("wait for prepare"); 1168 if (cache->wait() != NO_ERROR) goto Exit; 1169 1170 LOGV("start"); 1171 player->start(); 1172 1173 LOGV("wait for playback complete"); 1174 if (cache->wait() != NO_ERROR) goto Exit; 1175 1176 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1177 *pSampleRate = cache->sampleRate(); 1178 *pNumChannels = cache->channelCount(); 1179 *pFormat = cache->format(); 1180 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1181 1182Exit: 1183 if (player != 0) player->reset(); 1184 ::close(fd); 1185 return mem; 1186} 1187 1188#undef LOG_TAG 1189#define LOG_TAG "AudioSink" 1190MediaPlayerService::AudioOutput::AudioOutput() 1191 : mCallback(NULL), 1192 mCallbackCookie(NULL) { 1193 mTrack = 0; 1194 mStreamType = AudioSystem::MUSIC; 1195 mLeftVolume = 1.0; 1196 mRightVolume = 1.0; 1197 mLatency = 0; 1198 mMsecsPerFrame = 0; 1199 setMinBufferCount(); 1200} 1201 1202MediaPlayerService::AudioOutput::~AudioOutput() 1203{ 1204 close(); 1205} 1206 1207void MediaPlayerService::AudioOutput::setMinBufferCount() 1208{ 1209 char value[PROPERTY_VALUE_MAX]; 1210 if (property_get("ro.kernel.qemu", value, 0)) { 1211 mIsOnEmulator = true; 1212 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1213 } 1214} 1215 1216bool MediaPlayerService::AudioOutput::isOnEmulator() 1217{ 1218 setMinBufferCount(); 1219 return mIsOnEmulator; 1220} 1221 1222int MediaPlayerService::AudioOutput::getMinBufferCount() 1223{ 1224 setMinBufferCount(); 1225 return mMinBufferCount; 1226} 1227 1228ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1229{ 1230 if (mTrack == 0) return NO_INIT; 1231 return mTrack->frameCount() * frameSize(); 1232} 1233 1234ssize_t MediaPlayerService::AudioOutput::frameCount() const 1235{ 1236 if (mTrack == 0) return NO_INIT; 1237 return mTrack->frameCount(); 1238} 1239 1240ssize_t MediaPlayerService::AudioOutput::channelCount() const 1241{ 1242 if (mTrack == 0) return NO_INIT; 1243 return mTrack->channelCount(); 1244} 1245 1246ssize_t MediaPlayerService::AudioOutput::frameSize() const 1247{ 1248 if (mTrack == 0) return NO_INIT; 1249 return mTrack->frameSize(); 1250} 1251 1252uint32_t MediaPlayerService::AudioOutput::latency () const 1253{ 1254 return mLatency; 1255} 1256 1257float MediaPlayerService::AudioOutput::msecsPerFrame() const 1258{ 1259 return mMsecsPerFrame; 1260} 1261 1262status_t MediaPlayerService::AudioOutput::open( 1263 uint32_t sampleRate, int channelCount, int format, int bufferCount, 1264 AudioCallback cb, void *cookie) 1265{ 1266 mCallback = cb; 1267 mCallbackCookie = cookie; 1268 1269 // Check argument "bufferCount" against the mininum buffer count 1270 if (bufferCount < mMinBufferCount) { 1271 LOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount); 1272 bufferCount = mMinBufferCount; 1273 1274 } 1275 LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount); 1276 if (mTrack) close(); 1277 int afSampleRate; 1278 int afFrameCount; 1279 int frameCount; 1280 1281 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1282 return NO_INIT; 1283 } 1284 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1285 return NO_INIT; 1286 } 1287 1288 frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate; 1289 1290 AudioTrack *t; 1291 if (mCallback != NULL) { 1292 t = new AudioTrack( 1293 mStreamType, 1294 sampleRate, 1295 format, 1296 (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO, 1297 frameCount, 1298 0 /* flags */, 1299 CallbackWrapper, 1300 this); 1301 } else { 1302 t = new AudioTrack( 1303 mStreamType, 1304 sampleRate, 1305 format, 1306 (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO, 1307 frameCount); 1308 } 1309 1310 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1311 LOGE("Unable to create audio track"); 1312 delete t; 1313 return NO_INIT; 1314 } 1315 1316 LOGV("setVolume"); 1317 t->setVolume(mLeftVolume, mRightVolume); 1318 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1319 mLatency = t->latency() + kAudioVideoDelayMs; 1320 mTrack = t; 1321 return NO_ERROR; 1322} 1323 1324void MediaPlayerService::AudioOutput::start() 1325{ 1326 LOGV("start"); 1327 if (mTrack) { 1328 mTrack->setVolume(mLeftVolume, mRightVolume); 1329 mTrack->start(); 1330 } 1331} 1332 1333ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size) 1334{ 1335 LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 1336 1337 //LOGV("write(%p, %u)", buffer, size); 1338 if (mTrack) return mTrack->write(buffer, size); 1339 return NO_INIT; 1340} 1341 1342void MediaPlayerService::AudioOutput::stop() 1343{ 1344 LOGV("stop"); 1345 if (mTrack) mTrack->stop(); 1346} 1347 1348void MediaPlayerService::AudioOutput::flush() 1349{ 1350 LOGV("flush"); 1351 if (mTrack) mTrack->flush(); 1352} 1353 1354void MediaPlayerService::AudioOutput::pause() 1355{ 1356 LOGV("pause"); 1357 if (mTrack) mTrack->pause(); 1358} 1359 1360void MediaPlayerService::AudioOutput::close() 1361{ 1362 LOGV("close"); 1363 delete mTrack; 1364 mTrack = 0; 1365} 1366 1367void MediaPlayerService::AudioOutput::setVolume(float left, float right) 1368{ 1369 LOGV("setVolume(%f, %f)", left, right); 1370 mLeftVolume = left; 1371 mRightVolume = right; 1372 if (mTrack) { 1373 mTrack->setVolume(left, right); 1374 } 1375} 1376 1377// static 1378void MediaPlayerService::AudioOutput::CallbackWrapper( 1379 int event, void *cookie, void *info) { 1380 if (event != AudioTrack::EVENT_MORE_DATA) { 1381 return; 1382 } 1383 1384 AudioOutput *me = (AudioOutput *)cookie; 1385 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 1386 1387 (*me->mCallback)( 1388 me, buffer->raw, buffer->size, me->mCallbackCookie); 1389} 1390 1391#undef LOG_TAG 1392#define LOG_TAG "AudioCache" 1393MediaPlayerService::AudioCache::AudioCache(const char* name) : 1394 mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0), 1395 mError(NO_ERROR), mCommandComplete(false) 1396{ 1397 // create ashmem heap 1398 mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name); 1399} 1400 1401uint32_t MediaPlayerService::AudioCache::latency () const 1402{ 1403 return 0; 1404} 1405 1406float MediaPlayerService::AudioCache::msecsPerFrame() const 1407{ 1408 return mMsecsPerFrame; 1409} 1410 1411status_t MediaPlayerService::AudioCache::open( 1412 uint32_t sampleRate, int channelCount, int format, int bufferCount, 1413 AudioCallback cb, void *cookie) 1414{ 1415 if (cb != NULL) { 1416 return UNKNOWN_ERROR; // TODO: implement this. 1417 } 1418 1419 LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount); 1420 if (mHeap->getHeapID() < 0) return NO_INIT; 1421 mSampleRate = sampleRate; 1422 mChannelCount = (uint16_t)channelCount; 1423 mFormat = (uint16_t)format; 1424 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1425 return NO_ERROR; 1426} 1427 1428ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size) 1429{ 1430 LOGV("write(%p, %u)", buffer, size); 1431 if ((buffer == 0) || (size == 0)) return size; 1432 1433 uint8_t* p = static_cast<uint8_t*>(mHeap->getBase()); 1434 if (p == NULL) return NO_INIT; 1435 p += mSize; 1436 LOGV("memcpy(%p, %p, %u)", p, buffer, size); 1437 if (mSize + size > mHeap->getSize()) { 1438 LOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize()); 1439 size = mHeap->getSize() - mSize; 1440 } 1441 memcpy(p, buffer, size); 1442 mSize += size; 1443 return size; 1444} 1445 1446// call with lock held 1447status_t MediaPlayerService::AudioCache::wait() 1448{ 1449 Mutex::Autolock lock(mLock); 1450 if (!mCommandComplete) { 1451 mSignal.wait(mLock); 1452 } 1453 mCommandComplete = false; 1454 1455 if (mError == NO_ERROR) { 1456 LOGV("wait - success"); 1457 } else { 1458 LOGV("wait - error"); 1459 } 1460 return mError; 1461} 1462 1463void MediaPlayerService::AudioCache::notify(void* cookie, int msg, int ext1, int ext2) 1464{ 1465 LOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2); 1466 AudioCache* p = static_cast<AudioCache*>(cookie); 1467 1468 // ignore buffering messages 1469 if (msg == MEDIA_BUFFERING_UPDATE) return; 1470 1471 // set error condition 1472 if (msg == MEDIA_ERROR) { 1473 LOGE("Error %d, %d occurred", ext1, ext2); 1474 p->mError = ext1; 1475 } 1476 1477 // wake up thread 1478 LOGV("wakeup thread"); 1479 p->mCommandComplete = true; 1480 p->mSignal.signal(); 1481} 1482 1483} // namespace android 1484