MediaPlayerService.cpp revision 5bc087c573c70c84c6a39946457590b42d392a33
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 char value[PROPERTY_VALUE_MAX]; 736 if (property_get("media.httplive.enable-nuplayer", value, NULL) 737 && (!strcasecmp(value, "true") || !strcmp(value, "1"))) { 738 if (!strncasecmp("http://", url, 7)) { 739 size_t len = strlen(url); 740 if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) { 741 return NU_PLAYER; 742 } 743 744 if (strstr(url,"m3u8")) { 745 return NU_PLAYER; 746 } 747 } 748 } 749 750 // use MidiFile for MIDI extensions 751 int lenURL = strlen(url); 752 for (int i = 0; i < NELEM(FILE_EXTS); ++i) { 753 int len = strlen(FILE_EXTS[i].extension); 754 int start = lenURL - len; 755 if (start > 0) { 756 if (!strncasecmp(url + start, FILE_EXTS[i].extension, len)) { 757 return FILE_EXTS[i].playertype; 758 } 759 } 760 } 761 762 return getDefaultPlayerType(); 763} 764 765static sp<MediaPlayerBase> createPlayer(player_type playerType, void* cookie, 766 notify_callback_f notifyFunc) 767{ 768 sp<MediaPlayerBase> p; 769 switch (playerType) { 770 case SONIVOX_PLAYER: 771 LOGV(" create MidiFile"); 772 p = new MidiFile(); 773 break; 774 case STAGEFRIGHT_PLAYER: 775 LOGV(" create StagefrightPlayer"); 776 p = new StagefrightPlayer; 777 break; 778 case NU_PLAYER: 779 LOGV(" create NuPlayer"); 780 p = new NuPlayerDriver; 781 break; 782 case TEST_PLAYER: 783 LOGV("Create Test Player stub"); 784 p = new TestPlayerStub(); 785 break; 786 default: 787 LOGE("Unknown player type: %d", playerType); 788 return NULL; 789 } 790 if (p != NULL) { 791 if (p->initCheck() == NO_ERROR) { 792 p->setNotifyCallback(cookie, notifyFunc); 793 } else { 794 p.clear(); 795 } 796 } 797 if (p == NULL) { 798 LOGE("Failed to create player object"); 799 } 800 return p; 801} 802 803sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) 804{ 805 // determine if we have the right player type 806 sp<MediaPlayerBase> p = mPlayer; 807 if ((p != NULL) && (p->playerType() != playerType)) { 808 LOGV("delete player"); 809 p.clear(); 810 } 811 if (p == NULL) { 812 p = android::createPlayer(playerType, this, notify); 813 } 814 return p; 815} 816 817status_t MediaPlayerService::Client::setDataSource( 818 const char *url, const KeyedVector<String8, String8> *headers) 819{ 820 LOGV("setDataSource(%s)", url); 821 if (url == NULL) 822 return UNKNOWN_ERROR; 823 824 if (strncmp(url, "content://", 10) == 0) { 825 // get a filedescriptor for the content Uri and 826 // pass it to the setDataSource(fd) method 827 828 String16 url16(url); 829 int fd = android::openContentProviderFile(url16); 830 if (fd < 0) 831 { 832 LOGE("Couldn't open fd for %s", url); 833 return UNKNOWN_ERROR; 834 } 835 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 836 close(fd); 837 return mStatus; 838 } else { 839 player_type playerType = getPlayerType(url); 840 LOGV("player type = %d", playerType); 841 842 // create the right type of player 843 sp<MediaPlayerBase> p = createPlayer(playerType); 844 if (p == NULL) return NO_INIT; 845 846 if (!p->hardwareOutput()) { 847 mAudioOutput = new AudioOutput(mAudioSessionId); 848 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 849 } 850 851 // now set data source 852 LOGV(" setDataSource"); 853 mStatus = p->setDataSource(url, headers); 854 if (mStatus == NO_ERROR) { 855 mPlayer = p; 856 } else { 857 LOGE(" error: %d", mStatus); 858 } 859 return mStatus; 860 } 861} 862 863status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 864{ 865 LOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length); 866 struct stat sb; 867 int ret = fstat(fd, &sb); 868 if (ret != 0) { 869 LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 870 return UNKNOWN_ERROR; 871 } 872 873 LOGV("st_dev = %llu", sb.st_dev); 874 LOGV("st_mode = %u", sb.st_mode); 875 LOGV("st_uid = %lu", sb.st_uid); 876 LOGV("st_gid = %lu", sb.st_gid); 877 LOGV("st_size = %llu", sb.st_size); 878 879 if (offset >= sb.st_size) { 880 LOGE("offset error"); 881 ::close(fd); 882 return UNKNOWN_ERROR; 883 } 884 if (offset + length > sb.st_size) { 885 length = sb.st_size - offset; 886 LOGV("calculated length = %lld", length); 887 } 888 889 player_type playerType = getPlayerType(fd, offset, length); 890 LOGV("player type = %d", playerType); 891 892 // create the right type of player 893 sp<MediaPlayerBase> p = createPlayer(playerType); 894 if (p == NULL) return NO_INIT; 895 896 if (!p->hardwareOutput()) { 897 mAudioOutput = new AudioOutput(mAudioSessionId); 898 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 899 } 900 901 // now set data source 902 mStatus = p->setDataSource(fd, offset, length); 903 if (mStatus == NO_ERROR) mPlayer = p; 904 return mStatus; 905} 906 907status_t MediaPlayerService::Client::setDataSource( 908 const sp<IStreamSource> &source) { 909 // create the right type of player 910 sp<MediaPlayerBase> p = createPlayer(NU_PLAYER); 911 912 if (p == NULL) { 913 return NO_INIT; 914 } 915 916 if (!p->hardwareOutput()) { 917 mAudioOutput = new AudioOutput(mAudioSessionId); 918 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 919 } 920 921 // now set data source 922 mStatus = p->setDataSource(source); 923 924 if (mStatus == OK) { 925 mPlayer = p; 926 } 927 928 return mStatus; 929} 930 931status_t MediaPlayerService::Client::setVideoSurface(const sp<Surface>& surface) 932{ 933 LOGV("[%d] setVideoSurface(%p)", mConnId, surface.get()); 934 sp<MediaPlayerBase> p = getPlayer(); 935 if (p == 0) return UNKNOWN_ERROR; 936 return p->setVideoSurface(surface); 937} 938 939status_t MediaPlayerService::Client::invoke(const Parcel& request, 940 Parcel *reply) 941{ 942 sp<MediaPlayerBase> p = getPlayer(); 943 if (p == NULL) return UNKNOWN_ERROR; 944 return p->invoke(request, reply); 945} 946 947// This call doesn't need to access the native player. 948status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 949{ 950 status_t status; 951 media::Metadata::Filter allow, drop; 952 953 if (unmarshallFilter(filter, &allow, &status) && 954 unmarshallFilter(filter, &drop, &status)) { 955 Mutex::Autolock lock(mLock); 956 957 mMetadataAllow = allow; 958 mMetadataDrop = drop; 959 } 960 return status; 961} 962 963status_t MediaPlayerService::Client::getMetadata( 964 bool update_only, bool apply_filter, Parcel *reply) 965{ 966 sp<MediaPlayerBase> player = getPlayer(); 967 if (player == 0) return UNKNOWN_ERROR; 968 969 status_t status; 970 // Placeholder for the return code, updated by the caller. 971 reply->writeInt32(-1); 972 973 media::Metadata::Filter ids; 974 975 // We don't block notifications while we fetch the data. We clear 976 // mMetadataUpdated first so we don't lose notifications happening 977 // during the rest of this call. 978 { 979 Mutex::Autolock lock(mLock); 980 if (update_only) { 981 ids = mMetadataUpdated; 982 } 983 mMetadataUpdated.clear(); 984 } 985 986 media::Metadata metadata(reply); 987 988 metadata.appendHeader(); 989 status = player->getMetadata(ids, reply); 990 991 if (status != OK) { 992 metadata.resetParcel(); 993 LOGE("getMetadata failed %d", status); 994 return status; 995 } 996 997 // FIXME: Implement filtering on the result. Not critical since 998 // filtering takes place on the update notifications already. This 999 // would be when all the metadata are fetch and a filter is set. 1000 1001 // Everything is fine, update the metadata length. 1002 metadata.updateLength(); 1003 return OK; 1004} 1005 1006status_t MediaPlayerService::Client::prepareAsync() 1007{ 1008 LOGV("[%d] prepareAsync", mConnId); 1009 sp<MediaPlayerBase> p = getPlayer(); 1010 if (p == 0) return UNKNOWN_ERROR; 1011 status_t ret = p->prepareAsync(); 1012#if CALLBACK_ANTAGONIZER 1013 LOGD("start Antagonizer"); 1014 if (ret == NO_ERROR) mAntagonizer->start(); 1015#endif 1016 return ret; 1017} 1018 1019status_t MediaPlayerService::Client::start() 1020{ 1021 LOGV("[%d] start", mConnId); 1022 sp<MediaPlayerBase> p = getPlayer(); 1023 if (p == 0) return UNKNOWN_ERROR; 1024 p->setLooping(mLoop); 1025 return p->start(); 1026} 1027 1028status_t MediaPlayerService::Client::stop() 1029{ 1030 LOGV("[%d] stop", mConnId); 1031 sp<MediaPlayerBase> p = getPlayer(); 1032 if (p == 0) return UNKNOWN_ERROR; 1033 return p->stop(); 1034} 1035 1036status_t MediaPlayerService::Client::pause() 1037{ 1038 LOGV("[%d] pause", mConnId); 1039 sp<MediaPlayerBase> p = getPlayer(); 1040 if (p == 0) return UNKNOWN_ERROR; 1041 return p->pause(); 1042} 1043 1044status_t MediaPlayerService::Client::isPlaying(bool* state) 1045{ 1046 *state = false; 1047 sp<MediaPlayerBase> p = getPlayer(); 1048 if (p == 0) return UNKNOWN_ERROR; 1049 *state = p->isPlaying(); 1050 LOGV("[%d] isPlaying: %d", mConnId, *state); 1051 return NO_ERROR; 1052} 1053 1054status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 1055{ 1056 LOGV("getCurrentPosition"); 1057 sp<MediaPlayerBase> p = getPlayer(); 1058 if (p == 0) return UNKNOWN_ERROR; 1059 status_t ret = p->getCurrentPosition(msec); 1060 if (ret == NO_ERROR) { 1061 LOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 1062 } else { 1063 LOGE("getCurrentPosition returned %d", ret); 1064 } 1065 return ret; 1066} 1067 1068status_t MediaPlayerService::Client::getDuration(int *msec) 1069{ 1070 LOGV("getDuration"); 1071 sp<MediaPlayerBase> p = getPlayer(); 1072 if (p == 0) return UNKNOWN_ERROR; 1073 status_t ret = p->getDuration(msec); 1074 if (ret == NO_ERROR) { 1075 LOGV("[%d] getDuration = %d", mConnId, *msec); 1076 } else { 1077 LOGE("getDuration returned %d", ret); 1078 } 1079 return ret; 1080} 1081 1082status_t MediaPlayerService::Client::seekTo(int msec) 1083{ 1084 LOGV("[%d] seekTo(%d)", mConnId, msec); 1085 sp<MediaPlayerBase> p = getPlayer(); 1086 if (p == 0) return UNKNOWN_ERROR; 1087 return p->seekTo(msec); 1088} 1089 1090status_t MediaPlayerService::Client::reset() 1091{ 1092 LOGV("[%d] reset", mConnId); 1093 sp<MediaPlayerBase> p = getPlayer(); 1094 if (p == 0) return UNKNOWN_ERROR; 1095 return p->reset(); 1096} 1097 1098status_t MediaPlayerService::Client::setAudioStreamType(int type) 1099{ 1100 LOGV("[%d] setAudioStreamType(%d)", mConnId, type); 1101 // TODO: for hardware output, call player instead 1102 Mutex::Autolock l(mLock); 1103 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 1104 return NO_ERROR; 1105} 1106 1107status_t MediaPlayerService::Client::setLooping(int loop) 1108{ 1109 LOGV("[%d] setLooping(%d)", mConnId, loop); 1110 mLoop = loop; 1111 sp<MediaPlayerBase> p = getPlayer(); 1112 if (p != 0) return p->setLooping(loop); 1113 return NO_ERROR; 1114} 1115 1116status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1117{ 1118 LOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1119 // TODO: for hardware output, call player instead 1120 Mutex::Autolock l(mLock); 1121 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1122 return NO_ERROR; 1123} 1124 1125status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level) 1126{ 1127 LOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level); 1128 Mutex::Autolock l(mLock); 1129 if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level); 1130 return NO_ERROR; 1131} 1132 1133status_t MediaPlayerService::Client::attachAuxEffect(int effectId) 1134{ 1135 LOGV("[%d] attachAuxEffect(%d)", mConnId, effectId); 1136 Mutex::Autolock l(mLock); 1137 if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId); 1138 return NO_ERROR; 1139} 1140 1141void MediaPlayerService::Client::notify(void* cookie, int msg, int ext1, int ext2) 1142{ 1143 Client* client = static_cast<Client*>(cookie); 1144 1145 if (MEDIA_INFO == msg && 1146 MEDIA_INFO_METADATA_UPDATE == ext1) { 1147 const media::Metadata::Type metadata_type = ext2; 1148 1149 if(client->shouldDropMetadata(metadata_type)) { 1150 return; 1151 } 1152 1153 // Update the list of metadata that have changed. getMetadata 1154 // also access mMetadataUpdated and clears it. 1155 client->addNewMetadataUpdate(metadata_type); 1156 } 1157 LOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1158 client->mClient->notify(msg, ext1, ext2); 1159} 1160 1161 1162bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1163{ 1164 Mutex::Autolock lock(mLock); 1165 1166 if (findMetadata(mMetadataDrop, code)) { 1167 return true; 1168 } 1169 1170 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1171 return false; 1172 } else { 1173 return true; 1174 } 1175} 1176 1177 1178void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1179 Mutex::Autolock lock(mLock); 1180 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1181 mMetadataUpdated.add(metadata_type); 1182 } 1183} 1184 1185#if CALLBACK_ANTAGONIZER 1186const int Antagonizer::interval = 10000; // 10 msecs 1187 1188Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1189 mExit(false), mActive(false), mClient(client), mCb(cb) 1190{ 1191 createThread(callbackThread, this); 1192} 1193 1194void Antagonizer::kill() 1195{ 1196 Mutex::Autolock _l(mLock); 1197 mActive = false; 1198 mExit = true; 1199 mCondition.wait(mLock); 1200} 1201 1202int Antagonizer::callbackThread(void* user) 1203{ 1204 LOGD("Antagonizer started"); 1205 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1206 while (!p->mExit) { 1207 if (p->mActive) { 1208 LOGV("send event"); 1209 p->mCb(p->mClient, 0, 0, 0); 1210 } 1211 usleep(interval); 1212 } 1213 Mutex::Autolock _l(p->mLock); 1214 p->mCondition.signal(); 1215 LOGD("Antagonizer stopped"); 1216 return 0; 1217} 1218#endif 1219 1220static size_t kDefaultHeapSize = 1024 * 1024; // 1MB 1221 1222sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 1223{ 1224 LOGV("decode(%s)", url); 1225 sp<MemoryBase> mem; 1226 sp<MediaPlayerBase> player; 1227 1228 // Protect our precious, precious DRMd ringtones by only allowing 1229 // decoding of http, but not filesystem paths or content Uris. 1230 // If the application wants to decode those, it should open a 1231 // filedescriptor for them and use that. 1232 if (url != NULL && strncmp(url, "http://", 7) != 0) { 1233 LOGD("Can't decode %s by path, use filedescriptor instead", url); 1234 return mem; 1235 } 1236 1237 player_type playerType = getPlayerType(url); 1238 LOGV("player type = %d", playerType); 1239 1240 // create the right type of player 1241 sp<AudioCache> cache = new AudioCache(url); 1242 player = android::createPlayer(playerType, cache.get(), cache->notify); 1243 if (player == NULL) goto Exit; 1244 if (player->hardwareOutput()) goto Exit; 1245 1246 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1247 1248 // set data source 1249 if (player->setDataSource(url) != NO_ERROR) goto Exit; 1250 1251 LOGV("prepare"); 1252 player->prepareAsync(); 1253 1254 LOGV("wait for prepare"); 1255 if (cache->wait() != NO_ERROR) goto Exit; 1256 1257 LOGV("start"); 1258 player->start(); 1259 1260 LOGV("wait for playback complete"); 1261 if (cache->wait() != NO_ERROR) goto Exit; 1262 1263 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1264 *pSampleRate = cache->sampleRate(); 1265 *pNumChannels = cache->channelCount(); 1266 *pFormat = cache->format(); 1267 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1268 1269Exit: 1270 if (player != 0) player->reset(); 1271 return mem; 1272} 1273 1274sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 1275{ 1276 LOGV("decode(%d, %lld, %lld)", fd, offset, length); 1277 sp<MemoryBase> mem; 1278 sp<MediaPlayerBase> player; 1279 1280 player_type playerType = getPlayerType(fd, offset, length); 1281 LOGV("player type = %d", playerType); 1282 1283 // create the right type of player 1284 sp<AudioCache> cache = new AudioCache("decode_fd"); 1285 player = android::createPlayer(playerType, cache.get(), cache->notify); 1286 if (player == NULL) goto Exit; 1287 if (player->hardwareOutput()) goto Exit; 1288 1289 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1290 1291 // set data source 1292 if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit; 1293 1294 LOGV("prepare"); 1295 player->prepareAsync(); 1296 1297 LOGV("wait for prepare"); 1298 if (cache->wait() != NO_ERROR) goto Exit; 1299 1300 LOGV("start"); 1301 player->start(); 1302 1303 LOGV("wait for playback complete"); 1304 if (cache->wait() != NO_ERROR) goto Exit; 1305 1306 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1307 *pSampleRate = cache->sampleRate(); 1308 *pNumChannels = cache->channelCount(); 1309 *pFormat = cache->format(); 1310 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1311 1312Exit: 1313 if (player != 0) player->reset(); 1314 ::close(fd); 1315 return mem; 1316} 1317 1318 1319#undef LOG_TAG 1320#define LOG_TAG "AudioSink" 1321MediaPlayerService::AudioOutput::AudioOutput(int sessionId) 1322 : mCallback(NULL), 1323 mCallbackCookie(NULL), 1324 mSessionId(sessionId) { 1325 LOGV("AudioOutput(%d)", sessionId); 1326 mTrack = 0; 1327 mStreamType = AudioSystem::MUSIC; 1328 mLeftVolume = 1.0; 1329 mRightVolume = 1.0; 1330 mLatency = 0; 1331 mMsecsPerFrame = 0; 1332 mAuxEffectId = 0; 1333 mSendLevel = 0.0; 1334 setMinBufferCount(); 1335} 1336 1337MediaPlayerService::AudioOutput::~AudioOutput() 1338{ 1339 close(); 1340} 1341 1342void MediaPlayerService::AudioOutput::setMinBufferCount() 1343{ 1344 char value[PROPERTY_VALUE_MAX]; 1345 if (property_get("ro.kernel.qemu", value, 0)) { 1346 mIsOnEmulator = true; 1347 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1348 } 1349} 1350 1351bool MediaPlayerService::AudioOutput::isOnEmulator() 1352{ 1353 setMinBufferCount(); 1354 return mIsOnEmulator; 1355} 1356 1357int MediaPlayerService::AudioOutput::getMinBufferCount() 1358{ 1359 setMinBufferCount(); 1360 return mMinBufferCount; 1361} 1362 1363ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1364{ 1365 if (mTrack == 0) return NO_INIT; 1366 return mTrack->frameCount() * frameSize(); 1367} 1368 1369ssize_t MediaPlayerService::AudioOutput::frameCount() const 1370{ 1371 if (mTrack == 0) return NO_INIT; 1372 return mTrack->frameCount(); 1373} 1374 1375ssize_t MediaPlayerService::AudioOutput::channelCount() const 1376{ 1377 if (mTrack == 0) return NO_INIT; 1378 return mTrack->channelCount(); 1379} 1380 1381ssize_t MediaPlayerService::AudioOutput::frameSize() const 1382{ 1383 if (mTrack == 0) return NO_INIT; 1384 return mTrack->frameSize(); 1385} 1386 1387uint32_t MediaPlayerService::AudioOutput::latency () const 1388{ 1389 return mLatency; 1390} 1391 1392float MediaPlayerService::AudioOutput::msecsPerFrame() const 1393{ 1394 return mMsecsPerFrame; 1395} 1396 1397status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) 1398{ 1399 if (mTrack == 0) return NO_INIT; 1400 return mTrack->getPosition(position); 1401} 1402 1403status_t MediaPlayerService::AudioOutput::open( 1404 uint32_t sampleRate, int channelCount, int format, int bufferCount, 1405 AudioCallback cb, void *cookie) 1406{ 1407 mCallback = cb; 1408 mCallbackCookie = cookie; 1409 1410 // Check argument "bufferCount" against the mininum buffer count 1411 if (bufferCount < mMinBufferCount) { 1412 LOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount); 1413 bufferCount = mMinBufferCount; 1414 1415 } 1416 LOGV("open(%u, %d, %d, %d, %d)", sampleRate, channelCount, format, bufferCount,mSessionId); 1417 if (mTrack) close(); 1418 int afSampleRate; 1419 int afFrameCount; 1420 int frameCount; 1421 1422 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1423 return NO_INIT; 1424 } 1425 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1426 return NO_INIT; 1427 } 1428 1429 frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate; 1430 1431 AudioTrack *t; 1432 if (mCallback != NULL) { 1433 t = new AudioTrack( 1434 mStreamType, 1435 sampleRate, 1436 format, 1437 (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO, 1438 frameCount, 1439 0 /* flags */, 1440 CallbackWrapper, 1441 this, 1442 0, 1443 mSessionId); 1444 } else { 1445 t = new AudioTrack( 1446 mStreamType, 1447 sampleRate, 1448 format, 1449 (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO, 1450 frameCount, 1451 0, 1452 NULL, 1453 NULL, 1454 0, 1455 mSessionId); 1456 } 1457 1458 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1459 LOGE("Unable to create audio track"); 1460 delete t; 1461 return NO_INIT; 1462 } 1463 1464 LOGV("setVolume"); 1465 t->setVolume(mLeftVolume, mRightVolume); 1466 1467 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1468 mLatency = t->latency(); 1469 mTrack = t; 1470 1471 t->setAuxEffectSendLevel(mSendLevel); 1472 return t->attachAuxEffect(mAuxEffectId);; 1473} 1474 1475void MediaPlayerService::AudioOutput::start() 1476{ 1477 LOGV("start"); 1478 if (mTrack) { 1479 mTrack->setVolume(mLeftVolume, mRightVolume); 1480 mTrack->setAuxEffectSendLevel(mSendLevel); 1481 mTrack->start(); 1482 } 1483} 1484 1485 1486 1487ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size) 1488{ 1489 LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 1490 1491 //LOGV("write(%p, %u)", buffer, size); 1492 if (mTrack) { 1493 ssize_t ret = mTrack->write(buffer, size); 1494 return ret; 1495 } 1496 return NO_INIT; 1497} 1498 1499void MediaPlayerService::AudioOutput::stop() 1500{ 1501 LOGV("stop"); 1502 if (mTrack) mTrack->stop(); 1503} 1504 1505void MediaPlayerService::AudioOutput::flush() 1506{ 1507 LOGV("flush"); 1508 if (mTrack) mTrack->flush(); 1509} 1510 1511void MediaPlayerService::AudioOutput::pause() 1512{ 1513 LOGV("pause"); 1514 if (mTrack) mTrack->pause(); 1515} 1516 1517void MediaPlayerService::AudioOutput::close() 1518{ 1519 LOGV("close"); 1520 delete mTrack; 1521 mTrack = 0; 1522} 1523 1524void MediaPlayerService::AudioOutput::setVolume(float left, float right) 1525{ 1526 LOGV("setVolume(%f, %f)", left, right); 1527 mLeftVolume = left; 1528 mRightVolume = right; 1529 if (mTrack) { 1530 mTrack->setVolume(left, right); 1531 } 1532} 1533 1534status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level) 1535{ 1536 LOGV("setAuxEffectSendLevel(%f)", level); 1537 mSendLevel = level; 1538 if (mTrack) { 1539 return mTrack->setAuxEffectSendLevel(level); 1540 } 1541 return NO_ERROR; 1542} 1543 1544status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId) 1545{ 1546 LOGV("attachAuxEffect(%d)", effectId); 1547 mAuxEffectId = effectId; 1548 if (mTrack) { 1549 return mTrack->attachAuxEffect(effectId); 1550 } 1551 return NO_ERROR; 1552} 1553 1554// static 1555void MediaPlayerService::AudioOutput::CallbackWrapper( 1556 int event, void *cookie, void *info) { 1557 //LOGV("callbackwrapper"); 1558 if (event != AudioTrack::EVENT_MORE_DATA) { 1559 return; 1560 } 1561 1562 AudioOutput *me = (AudioOutput *)cookie; 1563 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 1564 1565 size_t actualSize = (*me->mCallback)( 1566 me, buffer->raw, buffer->size, me->mCallbackCookie); 1567 1568 buffer->size = actualSize; 1569 1570} 1571 1572int MediaPlayerService::AudioOutput::getSessionId() 1573{ 1574 return mSessionId; 1575} 1576 1577#undef LOG_TAG 1578#define LOG_TAG "AudioCache" 1579MediaPlayerService::AudioCache::AudioCache(const char* name) : 1580 mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0), 1581 mError(NO_ERROR), mCommandComplete(false) 1582{ 1583 // create ashmem heap 1584 mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name); 1585} 1586 1587uint32_t MediaPlayerService::AudioCache::latency () const 1588{ 1589 return 0; 1590} 1591 1592float MediaPlayerService::AudioCache::msecsPerFrame() const 1593{ 1594 return mMsecsPerFrame; 1595} 1596 1597status_t MediaPlayerService::AudioCache::getPosition(uint32_t *position) 1598{ 1599 if (position == 0) return BAD_VALUE; 1600 *position = mSize; 1601 return NO_ERROR; 1602} 1603 1604//////////////////////////////////////////////////////////////////////////////// 1605 1606struct CallbackThread : public Thread { 1607 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 1608 MediaPlayerBase::AudioSink::AudioCallback cb, 1609 void *cookie); 1610 1611protected: 1612 virtual ~CallbackThread(); 1613 1614 virtual bool threadLoop(); 1615 1616private: 1617 wp<MediaPlayerBase::AudioSink> mSink; 1618 MediaPlayerBase::AudioSink::AudioCallback mCallback; 1619 void *mCookie; 1620 void *mBuffer; 1621 size_t mBufferSize; 1622 1623 CallbackThread(const CallbackThread &); 1624 CallbackThread &operator=(const CallbackThread &); 1625}; 1626 1627CallbackThread::CallbackThread( 1628 const wp<MediaPlayerBase::AudioSink> &sink, 1629 MediaPlayerBase::AudioSink::AudioCallback cb, 1630 void *cookie) 1631 : mSink(sink), 1632 mCallback(cb), 1633 mCookie(cookie), 1634 mBuffer(NULL), 1635 mBufferSize(0) { 1636} 1637 1638CallbackThread::~CallbackThread() { 1639 if (mBuffer) { 1640 free(mBuffer); 1641 mBuffer = NULL; 1642 } 1643} 1644 1645bool CallbackThread::threadLoop() { 1646 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 1647 if (sink == NULL) { 1648 return false; 1649 } 1650 1651 if (mBuffer == NULL) { 1652 mBufferSize = sink->bufferSize(); 1653 mBuffer = malloc(mBufferSize); 1654 } 1655 1656 size_t actualSize = 1657 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie); 1658 1659 if (actualSize > 0) { 1660 sink->write(mBuffer, actualSize); 1661 } 1662 1663 return true; 1664} 1665 1666//////////////////////////////////////////////////////////////////////////////// 1667 1668status_t MediaPlayerService::AudioCache::open( 1669 uint32_t sampleRate, int channelCount, int format, int bufferCount, 1670 AudioCallback cb, void *cookie) 1671{ 1672 LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount); 1673 if (mHeap->getHeapID() < 0) { 1674 return NO_INIT; 1675 } 1676 1677 mSampleRate = sampleRate; 1678 mChannelCount = (uint16_t)channelCount; 1679 mFormat = (uint16_t)format; 1680 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1681 1682 if (cb != NULL) { 1683 mCallbackThread = new CallbackThread(this, cb, cookie); 1684 } 1685 return NO_ERROR; 1686} 1687 1688void MediaPlayerService::AudioCache::start() { 1689 if (mCallbackThread != NULL) { 1690 mCallbackThread->run("AudioCache callback"); 1691 } 1692} 1693 1694void MediaPlayerService::AudioCache::stop() { 1695 if (mCallbackThread != NULL) { 1696 mCallbackThread->requestExitAndWait(); 1697 } 1698} 1699 1700ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size) 1701{ 1702 LOGV("write(%p, %u)", buffer, size); 1703 if ((buffer == 0) || (size == 0)) return size; 1704 1705 uint8_t* p = static_cast<uint8_t*>(mHeap->getBase()); 1706 if (p == NULL) return NO_INIT; 1707 p += mSize; 1708 LOGV("memcpy(%p, %p, %u)", p, buffer, size); 1709 if (mSize + size > mHeap->getSize()) { 1710 LOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize()); 1711 size = mHeap->getSize() - mSize; 1712 } 1713 memcpy(p, buffer, size); 1714 mSize += size; 1715 return size; 1716} 1717 1718// call with lock held 1719status_t MediaPlayerService::AudioCache::wait() 1720{ 1721 Mutex::Autolock lock(mLock); 1722 while (!mCommandComplete) { 1723 mSignal.wait(mLock); 1724 } 1725 mCommandComplete = false; 1726 1727 if (mError == NO_ERROR) { 1728 LOGV("wait - success"); 1729 } else { 1730 LOGV("wait - error"); 1731 } 1732 return mError; 1733} 1734 1735void MediaPlayerService::AudioCache::notify(void* cookie, int msg, int ext1, int ext2) 1736{ 1737 LOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2); 1738 AudioCache* p = static_cast<AudioCache*>(cookie); 1739 1740 // ignore buffering messages 1741 switch (msg) 1742 { 1743 case MEDIA_ERROR: 1744 LOGE("Error %d, %d occurred", ext1, ext2); 1745 p->mError = ext1; 1746 break; 1747 case MEDIA_PREPARED: 1748 LOGV("prepared"); 1749 break; 1750 case MEDIA_PLAYBACK_COMPLETE: 1751 LOGV("playback complete"); 1752 break; 1753 default: 1754 LOGV("ignored"); 1755 return; 1756 } 1757 1758 // wake up thread 1759 Mutex::Autolock lock(p->mLock); 1760 p->mCommandComplete = true; 1761 p->mSignal.signal(); 1762} 1763 1764int MediaPlayerService::AudioCache::getSessionId() 1765{ 1766 return 0; 1767} 1768 1769} // namespace android 1770