MediaPlayerService.cpp revision f933441648ef6a71dee783d733aac17b9508b452
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/SystemClock.h> 45#include <utils/Vector.h> 46#include <cutils/properties.h> 47 48#include <media/MediaPlayerInterface.h> 49#include <media/mediarecorder.h> 50#include <media/MediaMetadataRetrieverInterface.h> 51#include <media/Metadata.h> 52#include <media/AudioTrack.h> 53 54#include "MediaRecorderClient.h" 55#include "MediaPlayerService.h" 56#include "MetadataRetrieverClient.h" 57 58#include "MidiFile.h" 59#include "TestPlayerStub.h" 60#include "StagefrightPlayer.h" 61#include "nuplayer/NuPlayerDriver.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}; 200 201// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround 202/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4; 203/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false; 204 205void MediaPlayerService::instantiate() { 206 defaultServiceManager()->addService( 207 String16("media.player"), new MediaPlayerService()); 208} 209 210MediaPlayerService::MediaPlayerService() 211{ 212 LOGV("MediaPlayerService created"); 213 mNextConnId = 1; 214} 215 216MediaPlayerService::~MediaPlayerService() 217{ 218 LOGV("MediaPlayerService destroyed"); 219} 220 221sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(pid_t pid) 222{ 223 sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid); 224 wp<MediaRecorderClient> w = recorder; 225 Mutex::Autolock lock(mLock); 226 mMediaRecorderClients.add(w); 227 LOGV("Create new media recorder client from pid %d", pid); 228 return recorder; 229} 230 231void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client) 232{ 233 Mutex::Autolock lock(mLock); 234 mMediaRecorderClients.remove(client); 235 LOGV("Delete media recorder client"); 236} 237 238sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever(pid_t pid) 239{ 240 sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid); 241 LOGV("Create new media retriever from pid %d", pid); 242 return retriever; 243} 244 245sp<IMediaPlayer> MediaPlayerService::create( 246 pid_t pid, const sp<IMediaPlayerClient>& client, const char* url, 247 const KeyedVector<String8, String8> *headers, int audioSessionId) 248{ 249 int32_t connId = android_atomic_inc(&mNextConnId); 250 sp<Client> c = new Client(this, pid, connId, client, audioSessionId); 251 LOGV("Create new client(%d) from pid %d, url=%s, connId=%d, audioSessionId=%d", 252 connId, pid, url, connId, audioSessionId); 253 if (NO_ERROR != c->setDataSource(url, headers)) 254 { 255 c.clear(); 256 return c; 257 } 258 wp<Client> w = c; 259 Mutex::Autolock lock(mLock); 260 mClients.add(w); 261 return c; 262} 263 264sp<IMediaPlayer> MediaPlayerService::create(pid_t pid, const sp<IMediaPlayerClient>& client, 265 int fd, int64_t offset, int64_t length, int audioSessionId) 266{ 267 int32_t connId = android_atomic_inc(&mNextConnId); 268 sp<Client> c = new Client(this, pid, connId, client, audioSessionId); 269 LOGV("Create new client(%d) from pid %d, fd=%d, offset=%lld, length=%lld, audioSessionId=%d", 270 connId, pid, fd, offset, length, audioSessionId); 271 if (NO_ERROR != c->setDataSource(fd, offset, length)) { 272 c.clear(); 273 } else { 274 wp<Client> w = c; 275 Mutex::Autolock lock(mLock); 276 mClients.add(w); 277 } 278 ::close(fd); 279 return c; 280} 281 282sp<IMediaPlayer> MediaPlayerService::create( 283 pid_t pid, const sp<IMediaPlayerClient> &client, 284 const sp<IStreamSource> &source, int audioSessionId) { 285 int32_t connId = android_atomic_inc(&mNextConnId); 286 sp<Client> c = new Client(this, pid, connId, client, audioSessionId); 287 288 LOGV("Create new client(%d) from pid %d, audioSessionId=%d", 289 connId, pid, audioSessionId); 290 291 if (OK != c->setDataSource(source)) { 292 c.clear(); 293 } else { 294 wp<Client> w = c; 295 Mutex::Autolock lock(mLock); 296 mClients.add(w); 297 } 298 299 return c; 300} 301 302sp<IOMX> MediaPlayerService::getOMX() { 303 Mutex::Autolock autoLock(mLock); 304 305 if (mOMX.get() == NULL) { 306 mOMX = new OMX; 307 } 308 309 return mOMX; 310} 311 312status_t MediaPlayerService::AudioCache::dump(int fd, const Vector<String16>& args) const 313{ 314 const size_t SIZE = 256; 315 char buffer[SIZE]; 316 String8 result; 317 318 result.append(" AudioCache\n"); 319 if (mHeap != 0) { 320 snprintf(buffer, 255, " heap base(%p), size(%d), flags(%d), device(%s)\n", 321 mHeap->getBase(), mHeap->getSize(), mHeap->getFlags(), mHeap->getDevice()); 322 result.append(buffer); 323 } 324 snprintf(buffer, 255, " msec per frame(%f), channel count(%d), format(%d), frame count(%ld)\n", 325 mMsecsPerFrame, mChannelCount, mFormat, mFrameCount); 326 result.append(buffer); 327 snprintf(buffer, 255, " sample rate(%d), size(%d), error(%d), command complete(%s)\n", 328 mSampleRate, mSize, mError, mCommandComplete?"true":"false"); 329 result.append(buffer); 330 ::write(fd, result.string(), result.size()); 331 return NO_ERROR; 332} 333 334status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const 335{ 336 const size_t SIZE = 256; 337 char buffer[SIZE]; 338 String8 result; 339 340 result.append(" AudioOutput\n"); 341 snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", 342 mStreamType, mLeftVolume, mRightVolume); 343 result.append(buffer); 344 snprintf(buffer, 255, " msec per frame(%f), latency (%d)\n", 345 mMsecsPerFrame, mLatency); 346 result.append(buffer); 347 snprintf(buffer, 255, " aux effect id(%d), send level (%f)\n", 348 mAuxEffectId, mSendLevel); 349 result.append(buffer); 350 351 ::write(fd, result.string(), result.size()); 352 if (mTrack != 0) { 353 mTrack->dump(fd, args); 354 } 355 return NO_ERROR; 356} 357 358status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) const 359{ 360 const size_t SIZE = 256; 361 char buffer[SIZE]; 362 String8 result; 363 result.append(" Client\n"); 364 snprintf(buffer, 255, " pid(%d), connId(%d), status(%d), looping(%s)\n", 365 mPid, mConnId, mStatus, mLoop?"true": "false"); 366 result.append(buffer); 367 write(fd, result.string(), result.size()); 368 if (mAudioOutput != 0) { 369 mAudioOutput->dump(fd, args); 370 } 371 write(fd, "\n", 1); 372 return NO_ERROR; 373} 374 375static int myTid() { 376#ifdef HAVE_GETTID 377 return gettid(); 378#else 379 return getpid(); 380#endif 381} 382 383#if defined(__arm__) 384extern "C" void get_malloc_leak_info(uint8_t** info, size_t* overallSize, 385 size_t* infoSize, size_t* totalMemory, size_t* backtraceSize); 386extern "C" void free_malloc_leak_info(uint8_t* info); 387 388// Use the String-class below instead of String8 to allocate all memory 389// beforehand and not reenter the heap while we are examining it... 390struct MyString8 { 391 static const size_t MAX_SIZE = 256 * 1024; 392 393 MyString8() 394 : mPtr((char *)malloc(MAX_SIZE)) { 395 *mPtr = '\0'; 396 } 397 398 ~MyString8() { 399 free(mPtr); 400 } 401 402 void append(const char *s) { 403 strcat(mPtr, s); 404 } 405 406 const char *string() const { 407 return mPtr; 408 } 409 410 size_t size() const { 411 return strlen(mPtr); 412 } 413 414private: 415 char *mPtr; 416 417 MyString8(const MyString8 &); 418 MyString8 &operator=(const MyString8 &); 419}; 420 421void memStatus(int fd, const Vector<String16>& args) 422{ 423 const size_t SIZE = 256; 424 char buffer[SIZE]; 425 MyString8 result; 426 427 typedef struct { 428 size_t size; 429 size_t dups; 430 intptr_t * backtrace; 431 } AllocEntry; 432 433 uint8_t *info = NULL; 434 size_t overallSize = 0; 435 size_t infoSize = 0; 436 size_t totalMemory = 0; 437 size_t backtraceSize = 0; 438 439 get_malloc_leak_info(&info, &overallSize, &infoSize, &totalMemory, &backtraceSize); 440 if (info) { 441 uint8_t *ptr = info; 442 size_t count = overallSize / infoSize; 443 444 snprintf(buffer, SIZE, " Allocation count %i\n", count); 445 result.append(buffer); 446 snprintf(buffer, SIZE, " Total memory %i\n", totalMemory); 447 result.append(buffer); 448 449 AllocEntry * entries = new AllocEntry[count]; 450 451 for (size_t i = 0; i < count; i++) { 452 // Each entry should be size_t, size_t, intptr_t[backtraceSize] 453 AllocEntry *e = &entries[i]; 454 455 e->size = *reinterpret_cast<size_t *>(ptr); 456 ptr += sizeof(size_t); 457 458 e->dups = *reinterpret_cast<size_t *>(ptr); 459 ptr += sizeof(size_t); 460 461 e->backtrace = reinterpret_cast<intptr_t *>(ptr); 462 ptr += sizeof(intptr_t) * backtraceSize; 463 } 464 465 // Now we need to sort the entries. They come sorted by size but 466 // not by stack trace which causes problems using diff. 467 bool moved; 468 do { 469 moved = false; 470 for (size_t i = 0; i < (count - 1); i++) { 471 AllocEntry *e1 = &entries[i]; 472 AllocEntry *e2 = &entries[i+1]; 473 474 bool swap = e1->size < e2->size; 475 if (e1->size == e2->size) { 476 for(size_t j = 0; j < backtraceSize; j++) { 477 if (e1->backtrace[j] == e2->backtrace[j]) { 478 continue; 479 } 480 swap = e1->backtrace[j] < e2->backtrace[j]; 481 break; 482 } 483 } 484 if (swap) { 485 AllocEntry t = entries[i]; 486 entries[i] = entries[i+1]; 487 entries[i+1] = t; 488 moved = true; 489 } 490 } 491 } while (moved); 492 493 for (size_t i = 0; i < count; i++) { 494 AllocEntry *e = &entries[i]; 495 496 snprintf(buffer, SIZE, "size %8i, dup %4i, ", e->size, e->dups); 497 result.append(buffer); 498 for (size_t ct = 0; (ct < backtraceSize) && e->backtrace[ct]; ct++) { 499 if (ct) { 500 result.append(", "); 501 } 502 snprintf(buffer, SIZE, "0x%08x", e->backtrace[ct]); 503 result.append(buffer); 504 } 505 result.append("\n"); 506 } 507 508 delete[] entries; 509 free_malloc_leak_info(info); 510 } 511 512 write(fd, result.string(), result.size()); 513} 514#endif 515 516status_t MediaPlayerService::dump(int fd, const Vector<String16>& args) 517{ 518 const size_t SIZE = 256; 519 char buffer[SIZE]; 520 String8 result; 521 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 522 snprintf(buffer, SIZE, "Permission Denial: " 523 "can't dump MediaPlayerService from pid=%d, uid=%d\n", 524 IPCThreadState::self()->getCallingPid(), 525 IPCThreadState::self()->getCallingUid()); 526 result.append(buffer); 527 } else { 528 Mutex::Autolock lock(mLock); 529 for (int i = 0, n = mClients.size(); i < n; ++i) { 530 sp<Client> c = mClients[i].promote(); 531 if (c != 0) c->dump(fd, args); 532 } 533 if (mMediaRecorderClients.size() == 0) { 534 result.append(" No media recorder client\n\n"); 535 } else { 536 for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) { 537 sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote(); 538 snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n", c->mPid); 539 result.append(buffer); 540 write(fd, result.string(), result.size()); 541 result = "\n"; 542 c->dump(fd, args); 543 } 544 } 545 546 result.append(" Files opened and/or mapped:\n"); 547 snprintf(buffer, SIZE, "/proc/%d/maps", myTid()); 548 FILE *f = fopen(buffer, "r"); 549 if (f) { 550 while (!feof(f)) { 551 fgets(buffer, SIZE, f); 552 if (strstr(buffer, " /mnt/sdcard/") || 553 strstr(buffer, " /system/sounds/") || 554 strstr(buffer, " /data/") || 555 strstr(buffer, " /system/media/")) { 556 result.append(" "); 557 result.append(buffer); 558 } 559 } 560 fclose(f); 561 } else { 562 result.append("couldn't open "); 563 result.append(buffer); 564 result.append("\n"); 565 } 566 567 snprintf(buffer, SIZE, "/proc/%d/fd", myTid()); 568 DIR *d = opendir(buffer); 569 if (d) { 570 struct dirent *ent; 571 while((ent = readdir(d)) != NULL) { 572 if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) { 573 snprintf(buffer, SIZE, "/proc/%d/fd/%s", myTid(), ent->d_name); 574 struct stat s; 575 if (lstat(buffer, &s) == 0) { 576 if ((s.st_mode & S_IFMT) == S_IFLNK) { 577 char linkto[256]; 578 int len = readlink(buffer, linkto, sizeof(linkto)); 579 if(len > 0) { 580 if(len > 255) { 581 linkto[252] = '.'; 582 linkto[253] = '.'; 583 linkto[254] = '.'; 584 linkto[255] = 0; 585 } else { 586 linkto[len] = 0; 587 } 588 if (strstr(linkto, "/mnt/sdcard/") == linkto || 589 strstr(linkto, "/system/sounds/") == linkto || 590 strstr(linkto, "/data/") == linkto || 591 strstr(linkto, "/system/media/") == linkto) { 592 result.append(" "); 593 result.append(buffer); 594 result.append(" -> "); 595 result.append(linkto); 596 result.append("\n"); 597 } 598 } 599 } else { 600 result.append(" unexpected type for "); 601 result.append(buffer); 602 result.append("\n"); 603 } 604 } 605 } 606 } 607 closedir(d); 608 } else { 609 result.append("couldn't open "); 610 result.append(buffer); 611 result.append("\n"); 612 } 613 614#if defined(__arm__) 615 bool dumpMem = false; 616 for (size_t i = 0; i < args.size(); i++) { 617 if (args[i] == String16("-m")) { 618 dumpMem = true; 619 } 620 } 621 if (dumpMem) { 622 memStatus(fd, args); 623 } 624#endif 625 } 626 write(fd, result.string(), result.size()); 627 return NO_ERROR; 628} 629 630void MediaPlayerService::removeClient(wp<Client> client) 631{ 632 Mutex::Autolock lock(mLock); 633 mClients.remove(client); 634} 635 636MediaPlayerService::Client::Client(const sp<MediaPlayerService>& service, pid_t pid, 637 int32_t connId, const sp<IMediaPlayerClient>& client, int audioSessionId) 638{ 639 LOGV("Client(%d) constructor", connId); 640 mPid = pid; 641 mConnId = connId; 642 mService = service; 643 mClient = client; 644 mLoop = false; 645 mStatus = NO_INIT; 646 mAudioSessionId = audioSessionId; 647 648#if CALLBACK_ANTAGONIZER 649 LOGD("create Antagonizer"); 650 mAntagonizer = new Antagonizer(notify, this); 651#endif 652} 653 654MediaPlayerService::Client::~Client() 655{ 656 LOGV("Client(%d) destructor pid = %d", mConnId, mPid); 657 mAudioOutput.clear(); 658 wp<Client> client(this); 659 disconnect(); 660 mService->removeClient(client); 661} 662 663void MediaPlayerService::Client::disconnect() 664{ 665 LOGV("disconnect(%d) from pid %d", mConnId, mPid); 666 // grab local reference and clear main reference to prevent future 667 // access to object 668 sp<MediaPlayerBase> p; 669 { 670 Mutex::Autolock l(mLock); 671 p = mPlayer; 672 } 673 mClient.clear(); 674 675 mPlayer.clear(); 676 677 // clear the notification to prevent callbacks to dead client 678 // and reset the player. We assume the player will serialize 679 // access to itself if necessary. 680 if (p != 0) { 681 p->setNotifyCallback(0, 0); 682#if CALLBACK_ANTAGONIZER 683 LOGD("kill Antagonizer"); 684 mAntagonizer->kill(); 685#endif 686 p->reset(); 687 } 688 689 IPCThreadState::self()->flushCommands(); 690} 691 692static player_type getDefaultPlayerType() { 693 return STAGEFRIGHT_PLAYER; 694} 695 696player_type getPlayerType(int fd, int64_t offset, int64_t length) 697{ 698 char buf[20]; 699 lseek(fd, offset, SEEK_SET); 700 read(fd, buf, sizeof(buf)); 701 lseek(fd, offset, SEEK_SET); 702 703 long ident = *((long*)buf); 704 705 // Ogg vorbis? 706 if (ident == 0x5367674f) // 'OggS' 707 return STAGEFRIGHT_PLAYER; 708 709 // Some kind of MIDI? 710 EAS_DATA_HANDLE easdata; 711 if (EAS_Init(&easdata) == EAS_SUCCESS) { 712 EAS_FILE locator; 713 locator.path = NULL; 714 locator.fd = fd; 715 locator.offset = offset; 716 locator.length = length; 717 EAS_HANDLE eashandle; 718 if (EAS_OpenFile(easdata, &locator, &eashandle) == EAS_SUCCESS) { 719 EAS_CloseFile(easdata, eashandle); 720 EAS_Shutdown(easdata); 721 return SONIVOX_PLAYER; 722 } 723 EAS_Shutdown(easdata); 724 } 725 726 return getDefaultPlayerType(); 727} 728 729player_type getPlayerType(const char* url) 730{ 731 if (TestPlayerStub::canBeUsed(url)) { 732 return TEST_PLAYER; 733 } 734 735 // use MidiFile for MIDI extensions 736 int lenURL = strlen(url); 737 for (int i = 0; i < NELEM(FILE_EXTS); ++i) { 738 int len = strlen(FILE_EXTS[i].extension); 739 int start = lenURL - len; 740 if (start > 0) { 741 if (!strncasecmp(url + start, FILE_EXTS[i].extension, len)) { 742 return FILE_EXTS[i].playertype; 743 } 744 } 745 } 746 747 return getDefaultPlayerType(); 748} 749 750static sp<MediaPlayerBase> createPlayer(player_type playerType, void* cookie, 751 notify_callback_f notifyFunc) 752{ 753 sp<MediaPlayerBase> p; 754 switch (playerType) { 755 case SONIVOX_PLAYER: 756 LOGV(" create MidiFile"); 757 p = new MidiFile(); 758 break; 759 case STAGEFRIGHT_PLAYER: 760 LOGV(" create StagefrightPlayer"); 761 p = new StagefrightPlayer; 762 break; 763 case NU_PLAYER: 764 LOGV(" create NuPlayer"); 765 p = new NuPlayerDriver; 766 break; 767 case TEST_PLAYER: 768 LOGV("Create Test Player stub"); 769 p = new TestPlayerStub(); 770 break; 771 default: 772 LOGE("Unknown player type: %d", playerType); 773 return NULL; 774 } 775 if (p != NULL) { 776 if (p->initCheck() == NO_ERROR) { 777 p->setNotifyCallback(cookie, notifyFunc); 778 } else { 779 p.clear(); 780 } 781 } 782 if (p == NULL) { 783 LOGE("Failed to create player object"); 784 } 785 return p; 786} 787 788sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) 789{ 790 // determine if we have the right player type 791 sp<MediaPlayerBase> p = mPlayer; 792 if ((p != NULL) && (p->playerType() != playerType)) { 793 LOGV("delete player"); 794 p.clear(); 795 } 796 if (p == NULL) { 797 p = android::createPlayer(playerType, this, notify); 798 } 799 return p; 800} 801 802status_t MediaPlayerService::Client::setDataSource( 803 const char *url, const KeyedVector<String8, String8> *headers) 804{ 805 LOGV("setDataSource(%s)", url); 806 if (url == NULL) 807 return UNKNOWN_ERROR; 808 809 if (strncmp(url, "content://", 10) == 0) { 810 // get a filedescriptor for the content Uri and 811 // pass it to the setDataSource(fd) method 812 813 String16 url16(url); 814 int fd = android::openContentProviderFile(url16); 815 if (fd < 0) 816 { 817 LOGE("Couldn't open fd for %s", url); 818 return UNKNOWN_ERROR; 819 } 820 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 821 close(fd); 822 return mStatus; 823 } else { 824 player_type playerType = getPlayerType(url); 825 LOGV("player type = %d", playerType); 826 827 // create the right type of player 828 sp<MediaPlayerBase> p = createPlayer(playerType); 829 if (p == NULL) return NO_INIT; 830 831 if (!p->hardwareOutput()) { 832 mAudioOutput = new AudioOutput(mAudioSessionId); 833 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 834 } 835 836 // now set data source 837 LOGV(" setDataSource"); 838 mStatus = p->setDataSource(url, headers); 839 if (mStatus == NO_ERROR) { 840 mPlayer = p; 841 } else { 842 LOGE(" error: %d", mStatus); 843 } 844 return mStatus; 845 } 846} 847 848status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 849{ 850 LOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length); 851 struct stat sb; 852 int ret = fstat(fd, &sb); 853 if (ret != 0) { 854 LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 855 return UNKNOWN_ERROR; 856 } 857 858 LOGV("st_dev = %llu", sb.st_dev); 859 LOGV("st_mode = %u", sb.st_mode); 860 LOGV("st_uid = %lu", sb.st_uid); 861 LOGV("st_gid = %lu", sb.st_gid); 862 LOGV("st_size = %llu", sb.st_size); 863 864 if (offset >= sb.st_size) { 865 LOGE("offset error"); 866 ::close(fd); 867 return UNKNOWN_ERROR; 868 } 869 if (offset + length > sb.st_size) { 870 length = sb.st_size - offset; 871 LOGV("calculated length = %lld", length); 872 } 873 874 player_type playerType = getPlayerType(fd, offset, length); 875 LOGV("player type = %d", playerType); 876 877 // create the right type of player 878 sp<MediaPlayerBase> p = createPlayer(playerType); 879 if (p == NULL) return NO_INIT; 880 881 if (!p->hardwareOutput()) { 882 mAudioOutput = new AudioOutput(mAudioSessionId); 883 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 884 } 885 886 // now set data source 887 mStatus = p->setDataSource(fd, offset, length); 888 if (mStatus == NO_ERROR) mPlayer = p; 889 return mStatus; 890} 891 892status_t MediaPlayerService::Client::setDataSource( 893 const sp<IStreamSource> &source) { 894 // create the right type of player 895 sp<MediaPlayerBase> p = createPlayer(NU_PLAYER); 896 897 if (p == NULL) { 898 return NO_INIT; 899 } 900 901 if (!p->hardwareOutput()) { 902 mAudioOutput = new AudioOutput(mAudioSessionId); 903 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 904 } 905 906 // now set data source 907 mStatus = p->setDataSource(source); 908 909 if (mStatus == OK) { 910 mPlayer = p; 911 } 912 913 return mStatus; 914} 915 916status_t MediaPlayerService::Client::setVideoSurface(const sp<Surface>& surface) 917{ 918 LOGV("[%d] setVideoSurface(%p)", mConnId, surface.get()); 919 sp<MediaPlayerBase> p = getPlayer(); 920 if (p == 0) return UNKNOWN_ERROR; 921 return p->setVideoSurface(surface); 922} 923 924status_t MediaPlayerService::Client::invoke(const Parcel& request, 925 Parcel *reply) 926{ 927 sp<MediaPlayerBase> p = getPlayer(); 928 if (p == NULL) return UNKNOWN_ERROR; 929 return p->invoke(request, reply); 930} 931 932// This call doesn't need to access the native player. 933status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 934{ 935 status_t status; 936 media::Metadata::Filter allow, drop; 937 938 if (unmarshallFilter(filter, &allow, &status) && 939 unmarshallFilter(filter, &drop, &status)) { 940 Mutex::Autolock lock(mLock); 941 942 mMetadataAllow = allow; 943 mMetadataDrop = drop; 944 } 945 return status; 946} 947 948status_t MediaPlayerService::Client::getMetadata( 949 bool update_only, bool apply_filter, Parcel *reply) 950{ 951 sp<MediaPlayerBase> player = getPlayer(); 952 if (player == 0) return UNKNOWN_ERROR; 953 954 status_t status; 955 // Placeholder for the return code, updated by the caller. 956 reply->writeInt32(-1); 957 958 media::Metadata::Filter ids; 959 960 // We don't block notifications while we fetch the data. We clear 961 // mMetadataUpdated first so we don't lose notifications happening 962 // during the rest of this call. 963 { 964 Mutex::Autolock lock(mLock); 965 if (update_only) { 966 ids = mMetadataUpdated; 967 } 968 mMetadataUpdated.clear(); 969 } 970 971 media::Metadata metadata(reply); 972 973 metadata.appendHeader(); 974 status = player->getMetadata(ids, reply); 975 976 if (status != OK) { 977 metadata.resetParcel(); 978 LOGE("getMetadata failed %d", status); 979 return status; 980 } 981 982 // FIXME: Implement filtering on the result. Not critical since 983 // filtering takes place on the update notifications already. This 984 // would be when all the metadata are fetch and a filter is set. 985 986 // Everything is fine, update the metadata length. 987 metadata.updateLength(); 988 return OK; 989} 990 991status_t MediaPlayerService::Client::prepareAsync() 992{ 993 LOGV("[%d] prepareAsync", mConnId); 994 sp<MediaPlayerBase> p = getPlayer(); 995 if (p == 0) return UNKNOWN_ERROR; 996 status_t ret = p->prepareAsync(); 997#if CALLBACK_ANTAGONIZER 998 LOGD("start Antagonizer"); 999 if (ret == NO_ERROR) mAntagonizer->start(); 1000#endif 1001 return ret; 1002} 1003 1004status_t MediaPlayerService::Client::start() 1005{ 1006 LOGV("[%d] start", mConnId); 1007 sp<MediaPlayerBase> p = getPlayer(); 1008 if (p == 0) return UNKNOWN_ERROR; 1009 p->setLooping(mLoop); 1010 return p->start(); 1011} 1012 1013status_t MediaPlayerService::Client::stop() 1014{ 1015 LOGV("[%d] stop", mConnId); 1016 sp<MediaPlayerBase> p = getPlayer(); 1017 if (p == 0) return UNKNOWN_ERROR; 1018 return p->stop(); 1019} 1020 1021status_t MediaPlayerService::Client::pause() 1022{ 1023 LOGV("[%d] pause", mConnId); 1024 sp<MediaPlayerBase> p = getPlayer(); 1025 if (p == 0) return UNKNOWN_ERROR; 1026 return p->pause(); 1027} 1028 1029status_t MediaPlayerService::Client::isPlaying(bool* state) 1030{ 1031 *state = false; 1032 sp<MediaPlayerBase> p = getPlayer(); 1033 if (p == 0) return UNKNOWN_ERROR; 1034 *state = p->isPlaying(); 1035 LOGV("[%d] isPlaying: %d", mConnId, *state); 1036 return NO_ERROR; 1037} 1038 1039status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 1040{ 1041 LOGV("getCurrentPosition"); 1042 sp<MediaPlayerBase> p = getPlayer(); 1043 if (p == 0) return UNKNOWN_ERROR; 1044 status_t ret = p->getCurrentPosition(msec); 1045 if (ret == NO_ERROR) { 1046 LOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 1047 } else { 1048 LOGE("getCurrentPosition returned %d", ret); 1049 } 1050 return ret; 1051} 1052 1053status_t MediaPlayerService::Client::getDuration(int *msec) 1054{ 1055 LOGV("getDuration"); 1056 sp<MediaPlayerBase> p = getPlayer(); 1057 if (p == 0) return UNKNOWN_ERROR; 1058 status_t ret = p->getDuration(msec); 1059 if (ret == NO_ERROR) { 1060 LOGV("[%d] getDuration = %d", mConnId, *msec); 1061 } else { 1062 LOGE("getDuration returned %d", ret); 1063 } 1064 return ret; 1065} 1066 1067status_t MediaPlayerService::Client::seekTo(int msec) 1068{ 1069 LOGV("[%d] seekTo(%d)", mConnId, msec); 1070 sp<MediaPlayerBase> p = getPlayer(); 1071 if (p == 0) return UNKNOWN_ERROR; 1072 return p->seekTo(msec); 1073} 1074 1075status_t MediaPlayerService::Client::reset() 1076{ 1077 LOGV("[%d] reset", mConnId); 1078 sp<MediaPlayerBase> p = getPlayer(); 1079 if (p == 0) return UNKNOWN_ERROR; 1080 return p->reset(); 1081} 1082 1083status_t MediaPlayerService::Client::setAudioStreamType(int type) 1084{ 1085 LOGV("[%d] setAudioStreamType(%d)", mConnId, type); 1086 // TODO: for hardware output, call player instead 1087 Mutex::Autolock l(mLock); 1088 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 1089 return NO_ERROR; 1090} 1091 1092status_t MediaPlayerService::Client::setLooping(int loop) 1093{ 1094 LOGV("[%d] setLooping(%d)", mConnId, loop); 1095 mLoop = loop; 1096 sp<MediaPlayerBase> p = getPlayer(); 1097 if (p != 0) return p->setLooping(loop); 1098 return NO_ERROR; 1099} 1100 1101status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1102{ 1103 LOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1104 // TODO: for hardware output, call player instead 1105 Mutex::Autolock l(mLock); 1106 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1107 return NO_ERROR; 1108} 1109 1110status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level) 1111{ 1112 LOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level); 1113 Mutex::Autolock l(mLock); 1114 if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level); 1115 return NO_ERROR; 1116} 1117 1118status_t MediaPlayerService::Client::attachAuxEffect(int effectId) 1119{ 1120 LOGV("[%d] attachAuxEffect(%d)", mConnId, effectId); 1121 Mutex::Autolock l(mLock); 1122 if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId); 1123 return NO_ERROR; 1124} 1125 1126void MediaPlayerService::Client::notify(void* cookie, int msg, int ext1, int ext2) 1127{ 1128 Client* client = static_cast<Client*>(cookie); 1129 1130 if (MEDIA_INFO == msg && 1131 MEDIA_INFO_METADATA_UPDATE == ext1) { 1132 const media::Metadata::Type metadata_type = ext2; 1133 1134 if(client->shouldDropMetadata(metadata_type)) { 1135 return; 1136 } 1137 1138 // Update the list of metadata that have changed. getMetadata 1139 // also access mMetadataUpdated and clears it. 1140 client->addNewMetadataUpdate(metadata_type); 1141 } 1142 LOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1143 client->mClient->notify(msg, ext1, ext2); 1144} 1145 1146 1147bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1148{ 1149 Mutex::Autolock lock(mLock); 1150 1151 if (findMetadata(mMetadataDrop, code)) { 1152 return true; 1153 } 1154 1155 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1156 return false; 1157 } else { 1158 return true; 1159 } 1160} 1161 1162 1163void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1164 Mutex::Autolock lock(mLock); 1165 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1166 mMetadataUpdated.add(metadata_type); 1167 } 1168} 1169 1170#if CALLBACK_ANTAGONIZER 1171const int Antagonizer::interval = 10000; // 10 msecs 1172 1173Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1174 mExit(false), mActive(false), mClient(client), mCb(cb) 1175{ 1176 createThread(callbackThread, this); 1177} 1178 1179void Antagonizer::kill() 1180{ 1181 Mutex::Autolock _l(mLock); 1182 mActive = false; 1183 mExit = true; 1184 mCondition.wait(mLock); 1185} 1186 1187int Antagonizer::callbackThread(void* user) 1188{ 1189 LOGD("Antagonizer started"); 1190 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1191 while (!p->mExit) { 1192 if (p->mActive) { 1193 LOGV("send event"); 1194 p->mCb(p->mClient, 0, 0, 0); 1195 } 1196 usleep(interval); 1197 } 1198 Mutex::Autolock _l(p->mLock); 1199 p->mCondition.signal(); 1200 LOGD("Antagonizer stopped"); 1201 return 0; 1202} 1203#endif 1204 1205static size_t kDefaultHeapSize = 1024 * 1024; // 1MB 1206 1207sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 1208{ 1209 LOGV("decode(%s)", url); 1210 sp<MemoryBase> mem; 1211 sp<MediaPlayerBase> player; 1212 1213 // Protect our precious, precious DRMd ringtones by only allowing 1214 // decoding of http, but not filesystem paths or content Uris. 1215 // If the application wants to decode those, it should open a 1216 // filedescriptor for them and use that. 1217 if (url != NULL && strncmp(url, "http://", 7) != 0) { 1218 LOGD("Can't decode %s by path, use filedescriptor instead", url); 1219 return mem; 1220 } 1221 1222 player_type playerType = getPlayerType(url); 1223 LOGV("player type = %d", playerType); 1224 1225 // create the right type of player 1226 sp<AudioCache> cache = new AudioCache(url); 1227 player = android::createPlayer(playerType, cache.get(), cache->notify); 1228 if (player == NULL) goto Exit; 1229 if (player->hardwareOutput()) goto Exit; 1230 1231 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1232 1233 // set data source 1234 if (player->setDataSource(url) != NO_ERROR) goto Exit; 1235 1236 LOGV("prepare"); 1237 player->prepareAsync(); 1238 1239 LOGV("wait for prepare"); 1240 if (cache->wait() != NO_ERROR) goto Exit; 1241 1242 LOGV("start"); 1243 player->start(); 1244 1245 LOGV("wait for playback complete"); 1246 if (cache->wait() != NO_ERROR) goto Exit; 1247 1248 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1249 *pSampleRate = cache->sampleRate(); 1250 *pNumChannels = cache->channelCount(); 1251 *pFormat = cache->format(); 1252 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1253 1254Exit: 1255 if (player != 0) player->reset(); 1256 return mem; 1257} 1258 1259sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 1260{ 1261 LOGV("decode(%d, %lld, %lld)", fd, offset, length); 1262 sp<MemoryBase> mem; 1263 sp<MediaPlayerBase> player; 1264 1265 player_type playerType = getPlayerType(fd, offset, length); 1266 LOGV("player type = %d", playerType); 1267 1268 // create the right type of player 1269 sp<AudioCache> cache = new AudioCache("decode_fd"); 1270 player = android::createPlayer(playerType, cache.get(), cache->notify); 1271 if (player == NULL) goto Exit; 1272 if (player->hardwareOutput()) goto Exit; 1273 1274 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1275 1276 // set data source 1277 if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit; 1278 1279 LOGV("prepare"); 1280 player->prepareAsync(); 1281 1282 LOGV("wait for prepare"); 1283 if (cache->wait() != NO_ERROR) goto Exit; 1284 1285 LOGV("start"); 1286 player->start(); 1287 1288 LOGV("wait for playback complete"); 1289 if (cache->wait() != NO_ERROR) goto Exit; 1290 1291 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1292 *pSampleRate = cache->sampleRate(); 1293 *pNumChannels = cache->channelCount(); 1294 *pFormat = cache->format(); 1295 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1296 1297Exit: 1298 if (player != 0) player->reset(); 1299 ::close(fd); 1300 return mem; 1301} 1302 1303 1304#undef LOG_TAG 1305#define LOG_TAG "AudioSink" 1306MediaPlayerService::AudioOutput::AudioOutput(int sessionId) 1307 : mCallback(NULL), 1308 mCallbackCookie(NULL), 1309 mSessionId(sessionId) { 1310 LOGV("AudioOutput(%d)", sessionId); 1311 mTrack = 0; 1312 mStreamType = AudioSystem::MUSIC; 1313 mLeftVolume = 1.0; 1314 mRightVolume = 1.0; 1315 mLatency = 0; 1316 mMsecsPerFrame = 0; 1317 mAuxEffectId = 0; 1318 mSendLevel = 0.0; 1319 setMinBufferCount(); 1320} 1321 1322MediaPlayerService::AudioOutput::~AudioOutput() 1323{ 1324 close(); 1325} 1326 1327void MediaPlayerService::AudioOutput::setMinBufferCount() 1328{ 1329 char value[PROPERTY_VALUE_MAX]; 1330 if (property_get("ro.kernel.qemu", value, 0)) { 1331 mIsOnEmulator = true; 1332 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1333 } 1334} 1335 1336bool MediaPlayerService::AudioOutput::isOnEmulator() 1337{ 1338 setMinBufferCount(); 1339 return mIsOnEmulator; 1340} 1341 1342int MediaPlayerService::AudioOutput::getMinBufferCount() 1343{ 1344 setMinBufferCount(); 1345 return mMinBufferCount; 1346} 1347 1348ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1349{ 1350 if (mTrack == 0) return NO_INIT; 1351 return mTrack->frameCount() * frameSize(); 1352} 1353 1354ssize_t MediaPlayerService::AudioOutput::frameCount() const 1355{ 1356 if (mTrack == 0) return NO_INIT; 1357 return mTrack->frameCount(); 1358} 1359 1360ssize_t MediaPlayerService::AudioOutput::channelCount() const 1361{ 1362 if (mTrack == 0) return NO_INIT; 1363 return mTrack->channelCount(); 1364} 1365 1366ssize_t MediaPlayerService::AudioOutput::frameSize() const 1367{ 1368 if (mTrack == 0) return NO_INIT; 1369 return mTrack->frameSize(); 1370} 1371 1372uint32_t MediaPlayerService::AudioOutput::latency () const 1373{ 1374 return mLatency; 1375} 1376 1377float MediaPlayerService::AudioOutput::msecsPerFrame() const 1378{ 1379 return mMsecsPerFrame; 1380} 1381 1382status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) 1383{ 1384 if (mTrack == 0) return NO_INIT; 1385 return mTrack->getPosition(position); 1386} 1387 1388status_t MediaPlayerService::AudioOutput::open( 1389 uint32_t sampleRate, int channelCount, int format, int bufferCount, 1390 AudioCallback cb, void *cookie) 1391{ 1392 mCallback = cb; 1393 mCallbackCookie = cookie; 1394 1395 // Check argument "bufferCount" against the mininum buffer count 1396 if (bufferCount < mMinBufferCount) { 1397 LOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount); 1398 bufferCount = mMinBufferCount; 1399 1400 } 1401 LOGV("open(%u, %d, %d, %d, %d)", sampleRate, channelCount, format, bufferCount,mSessionId); 1402 if (mTrack) close(); 1403 int afSampleRate; 1404 int afFrameCount; 1405 int frameCount; 1406 1407 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1408 return NO_INIT; 1409 } 1410 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1411 return NO_INIT; 1412 } 1413 1414 frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate; 1415 1416 AudioTrack *t; 1417 if (mCallback != NULL) { 1418 t = new AudioTrack( 1419 mStreamType, 1420 sampleRate, 1421 format, 1422 (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO, 1423 frameCount, 1424 0 /* flags */, 1425 CallbackWrapper, 1426 this, 1427 0, 1428 mSessionId); 1429 } else { 1430 t = new AudioTrack( 1431 mStreamType, 1432 sampleRate, 1433 format, 1434 (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO, 1435 frameCount, 1436 0, 1437 NULL, 1438 NULL, 1439 0, 1440 mSessionId); 1441 } 1442 1443 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1444 LOGE("Unable to create audio track"); 1445 delete t; 1446 return NO_INIT; 1447 } 1448 1449 LOGV("setVolume"); 1450 t->setVolume(mLeftVolume, mRightVolume); 1451 1452 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1453 mLatency = t->latency(); 1454 mTrack = t; 1455 1456 t->setAuxEffectSendLevel(mSendLevel); 1457 return t->attachAuxEffect(mAuxEffectId);; 1458} 1459 1460void MediaPlayerService::AudioOutput::start() 1461{ 1462 LOGV("start"); 1463 if (mTrack) { 1464 mTrack->setVolume(mLeftVolume, mRightVolume); 1465 mTrack->setAuxEffectSendLevel(mSendLevel); 1466 mTrack->start(); 1467 } 1468} 1469 1470 1471 1472ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size) 1473{ 1474 LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 1475 1476 //LOGV("write(%p, %u)", buffer, size); 1477 if (mTrack) { 1478 ssize_t ret = mTrack->write(buffer, size); 1479 return ret; 1480 } 1481 return NO_INIT; 1482} 1483 1484void MediaPlayerService::AudioOutput::stop() 1485{ 1486 LOGV("stop"); 1487 if (mTrack) mTrack->stop(); 1488} 1489 1490void MediaPlayerService::AudioOutput::flush() 1491{ 1492 LOGV("flush"); 1493 if (mTrack) mTrack->flush(); 1494} 1495 1496void MediaPlayerService::AudioOutput::pause() 1497{ 1498 LOGV("pause"); 1499 if (mTrack) mTrack->pause(); 1500} 1501 1502void MediaPlayerService::AudioOutput::close() 1503{ 1504 LOGV("close"); 1505 delete mTrack; 1506 mTrack = 0; 1507} 1508 1509void MediaPlayerService::AudioOutput::setVolume(float left, float right) 1510{ 1511 LOGV("setVolume(%f, %f)", left, right); 1512 mLeftVolume = left; 1513 mRightVolume = right; 1514 if (mTrack) { 1515 mTrack->setVolume(left, right); 1516 } 1517} 1518 1519status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level) 1520{ 1521 LOGV("setAuxEffectSendLevel(%f)", level); 1522 mSendLevel = level; 1523 if (mTrack) { 1524 return mTrack->setAuxEffectSendLevel(level); 1525 } 1526 return NO_ERROR; 1527} 1528 1529status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId) 1530{ 1531 LOGV("attachAuxEffect(%d)", effectId); 1532 mAuxEffectId = effectId; 1533 if (mTrack) { 1534 return mTrack->attachAuxEffect(effectId); 1535 } 1536 return NO_ERROR; 1537} 1538 1539// static 1540void MediaPlayerService::AudioOutput::CallbackWrapper( 1541 int event, void *cookie, void *info) { 1542 //LOGV("callbackwrapper"); 1543 if (event != AudioTrack::EVENT_MORE_DATA) { 1544 return; 1545 } 1546 1547 AudioOutput *me = (AudioOutput *)cookie; 1548 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 1549 1550 size_t actualSize = (*me->mCallback)( 1551 me, buffer->raw, buffer->size, me->mCallbackCookie); 1552 1553 buffer->size = actualSize; 1554 1555} 1556 1557int MediaPlayerService::AudioOutput::getSessionId() 1558{ 1559 return mSessionId; 1560} 1561 1562#undef LOG_TAG 1563#define LOG_TAG "AudioCache" 1564MediaPlayerService::AudioCache::AudioCache(const char* name) : 1565 mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0), 1566 mError(NO_ERROR), mCommandComplete(false) 1567{ 1568 // create ashmem heap 1569 mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name); 1570} 1571 1572uint32_t MediaPlayerService::AudioCache::latency () const 1573{ 1574 return 0; 1575} 1576 1577float MediaPlayerService::AudioCache::msecsPerFrame() const 1578{ 1579 return mMsecsPerFrame; 1580} 1581 1582status_t MediaPlayerService::AudioCache::getPosition(uint32_t *position) 1583{ 1584 if (position == 0) return BAD_VALUE; 1585 *position = mSize; 1586 return NO_ERROR; 1587} 1588 1589//////////////////////////////////////////////////////////////////////////////// 1590 1591struct CallbackThread : public Thread { 1592 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 1593 MediaPlayerBase::AudioSink::AudioCallback cb, 1594 void *cookie); 1595 1596protected: 1597 virtual ~CallbackThread(); 1598 1599 virtual bool threadLoop(); 1600 1601private: 1602 wp<MediaPlayerBase::AudioSink> mSink; 1603 MediaPlayerBase::AudioSink::AudioCallback mCallback; 1604 void *mCookie; 1605 void *mBuffer; 1606 size_t mBufferSize; 1607 1608 CallbackThread(const CallbackThread &); 1609 CallbackThread &operator=(const CallbackThread &); 1610}; 1611 1612CallbackThread::CallbackThread( 1613 const wp<MediaPlayerBase::AudioSink> &sink, 1614 MediaPlayerBase::AudioSink::AudioCallback cb, 1615 void *cookie) 1616 : mSink(sink), 1617 mCallback(cb), 1618 mCookie(cookie), 1619 mBuffer(NULL), 1620 mBufferSize(0) { 1621} 1622 1623CallbackThread::~CallbackThread() { 1624 if (mBuffer) { 1625 free(mBuffer); 1626 mBuffer = NULL; 1627 } 1628} 1629 1630bool CallbackThread::threadLoop() { 1631 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 1632 if (sink == NULL) { 1633 return false; 1634 } 1635 1636 if (mBuffer == NULL) { 1637 mBufferSize = sink->bufferSize(); 1638 mBuffer = malloc(mBufferSize); 1639 } 1640 1641 size_t actualSize = 1642 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie); 1643 1644 if (actualSize > 0) { 1645 sink->write(mBuffer, actualSize); 1646 } 1647 1648 return true; 1649} 1650 1651//////////////////////////////////////////////////////////////////////////////// 1652 1653status_t MediaPlayerService::AudioCache::open( 1654 uint32_t sampleRate, int channelCount, int format, int bufferCount, 1655 AudioCallback cb, void *cookie) 1656{ 1657 LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount); 1658 if (mHeap->getHeapID() < 0) { 1659 return NO_INIT; 1660 } 1661 1662 mSampleRate = sampleRate; 1663 mChannelCount = (uint16_t)channelCount; 1664 mFormat = (uint16_t)format; 1665 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1666 1667 if (cb != NULL) { 1668 mCallbackThread = new CallbackThread(this, cb, cookie); 1669 } 1670 return NO_ERROR; 1671} 1672 1673void MediaPlayerService::AudioCache::start() { 1674 if (mCallbackThread != NULL) { 1675 mCallbackThread->run("AudioCache callback"); 1676 } 1677} 1678 1679void MediaPlayerService::AudioCache::stop() { 1680 if (mCallbackThread != NULL) { 1681 mCallbackThread->requestExitAndWait(); 1682 } 1683} 1684 1685ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size) 1686{ 1687 LOGV("write(%p, %u)", buffer, size); 1688 if ((buffer == 0) || (size == 0)) return size; 1689 1690 uint8_t* p = static_cast<uint8_t*>(mHeap->getBase()); 1691 if (p == NULL) return NO_INIT; 1692 p += mSize; 1693 LOGV("memcpy(%p, %p, %u)", p, buffer, size); 1694 if (mSize + size > mHeap->getSize()) { 1695 LOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize()); 1696 size = mHeap->getSize() - mSize; 1697 } 1698 memcpy(p, buffer, size); 1699 mSize += size; 1700 return size; 1701} 1702 1703// call with lock held 1704status_t MediaPlayerService::AudioCache::wait() 1705{ 1706 Mutex::Autolock lock(mLock); 1707 while (!mCommandComplete) { 1708 mSignal.wait(mLock); 1709 } 1710 mCommandComplete = false; 1711 1712 if (mError == NO_ERROR) { 1713 LOGV("wait - success"); 1714 } else { 1715 LOGV("wait - error"); 1716 } 1717 return mError; 1718} 1719 1720void MediaPlayerService::AudioCache::notify(void* cookie, int msg, int ext1, int ext2) 1721{ 1722 LOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2); 1723 AudioCache* p = static_cast<AudioCache*>(cookie); 1724 1725 // ignore buffering messages 1726 switch (msg) 1727 { 1728 case MEDIA_ERROR: 1729 LOGE("Error %d, %d occurred", ext1, ext2); 1730 p->mError = ext1; 1731 break; 1732 case MEDIA_PREPARED: 1733 LOGV("prepared"); 1734 break; 1735 case MEDIA_PLAYBACK_COMPLETE: 1736 LOGV("playback complete"); 1737 break; 1738 default: 1739 LOGV("ignored"); 1740 return; 1741 } 1742 1743 // wake up thread 1744 Mutex::Autolock lock(p->mLock); 1745 p->mCommandComplete = true; 1746 p->mSignal.signal(); 1747} 1748 1749int MediaPlayerService::AudioCache::getSessionId() 1750{ 1751 return 0; 1752} 1753 1754} // namespace android 1755