MediaPlayerService.cpp revision a1ffe49c7d537bf2a16fc3eb32b0ecc6d72bdf8a
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 <media/PVPlayer.h> 60#include "TestPlayerStub.h" 61#include "StagefrightPlayer.h" 62 63#include <OMX.h> 64 65/* desktop Linux needs a little help with gettid() */ 66#if defined(HAVE_GETTID) && !defined(HAVE_ANDROID_OS) 67#define __KERNEL__ 68# include <linux/unistd.h> 69#ifdef _syscall0 70_syscall0(pid_t,gettid) 71#else 72pid_t gettid() { return syscall(__NR_gettid);} 73#endif 74#undef __KERNEL__ 75#endif 76 77namespace { 78using android::media::Metadata; 79using android::status_t; 80using android::OK; 81using android::BAD_VALUE; 82using android::NOT_ENOUGH_DATA; 83using android::Parcel; 84 85// Max number of entries in the filter. 86const int kMaxFilterSize = 64; // I pulled that out of thin air. 87 88// FIXME: Move all the metadata related function in the Metadata.cpp 89 90 91// Unmarshall a filter from a Parcel. 92// Filter format in a parcel: 93// 94// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 95// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 96// | number of entries (n) | 97// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 98// | metadata type 1 | 99// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 100// | metadata type 2 | 101// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 102// .... 103// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 104// | metadata type n | 105// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 106// 107// @param p Parcel that should start with a filter. 108// @param[out] filter On exit contains the list of metadata type to be 109// filtered. 110// @param[out] status On exit contains the status code to be returned. 111// @return true if the parcel starts with a valid filter. 112bool unmarshallFilter(const Parcel& p, 113 Metadata::Filter *filter, 114 status_t *status) 115{ 116 int32_t val; 117 if (p.readInt32(&val) != OK) 118 { 119 LOGE("Failed to read filter's length"); 120 *status = NOT_ENOUGH_DATA; 121 return false; 122 } 123 124 if( val > kMaxFilterSize || val < 0) 125 { 126 LOGE("Invalid filter len %d", val); 127 *status = BAD_VALUE; 128 return false; 129 } 130 131 const size_t num = val; 132 133 filter->clear(); 134 filter->setCapacity(num); 135 136 size_t size = num * sizeof(Metadata::Type); 137 138 139 if (p.dataAvail() < size) 140 { 141 LOGE("Filter too short expected %d but got %d", size, p.dataAvail()); 142 *status = NOT_ENOUGH_DATA; 143 return false; 144 } 145 146 const Metadata::Type *data = 147 static_cast<const Metadata::Type*>(p.readInplace(size)); 148 149 if (NULL == data) 150 { 151 LOGE("Filter had no data"); 152 *status = BAD_VALUE; 153 return false; 154 } 155 156 // TODO: The stl impl of vector would be more efficient here 157 // because it degenerates into a memcpy on pod types. Try to 158 // replace later or use stl::set. 159 for (size_t i = 0; i < num; ++i) 160 { 161 filter->add(*data); 162 ++data; 163 } 164 *status = OK; 165 return true; 166} 167 168// @param filter Of metadata type. 169// @param val To be searched. 170// @return true if a match was found. 171bool findMetadata(const Metadata::Filter& filter, const int32_t val) 172{ 173 // Deal with empty and ANY right away 174 if (filter.isEmpty()) return false; 175 if (filter[0] == Metadata::kAny) return true; 176 177 return filter.indexOf(val) >= 0; 178} 179 180} // anonymous namespace 181 182 183namespace android { 184 185// TODO: Temp hack until we can register players 186typedef struct { 187 const char *extension; 188 const player_type playertype; 189} extmap; 190extmap FILE_EXTS [] = { 191 {".mid", SONIVOX_PLAYER}, 192 {".midi", SONIVOX_PLAYER}, 193 {".smf", SONIVOX_PLAYER}, 194 {".xmf", SONIVOX_PLAYER}, 195 {".imy", SONIVOX_PLAYER}, 196 {".rtttl", SONIVOX_PLAYER}, 197 {".rtx", SONIVOX_PLAYER}, 198 {".ota", SONIVOX_PLAYER}, 199#ifndef NO_OPENCORE 200 {".wma", PV_PLAYER}, 201 {".wmv", PV_PLAYER}, 202 {".asf", PV_PLAYER}, 203#endif 204}; 205 206// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround 207/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4; 208/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false; 209 210void MediaPlayerService::instantiate() { 211 defaultServiceManager()->addService( 212 String16("media.player"), new MediaPlayerService()); 213} 214 215MediaPlayerService::MediaPlayerService() 216{ 217 LOGV("MediaPlayerService created"); 218 mNextConnId = 1; 219} 220 221MediaPlayerService::~MediaPlayerService() 222{ 223 LOGV("MediaPlayerService destroyed"); 224} 225 226sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(pid_t pid) 227{ 228 sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid); 229 wp<MediaRecorderClient> w = recorder; 230 Mutex::Autolock lock(mLock); 231 mMediaRecorderClients.add(w); 232 LOGV("Create new media recorder client from pid %d", pid); 233 return recorder; 234} 235 236void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client) 237{ 238 Mutex::Autolock lock(mLock); 239 mMediaRecorderClients.remove(client); 240 LOGV("Delete media recorder client"); 241} 242 243sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever(pid_t pid) 244{ 245 sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid); 246 LOGV("Create new media retriever from pid %d", pid); 247 return retriever; 248} 249 250sp<IMediaPlayer> MediaPlayerService::create( 251 pid_t pid, const sp<IMediaPlayerClient>& client, const char* url, 252 const KeyedVector<String8, String8> *headers, int audioSessionId) 253{ 254 int32_t connId = android_atomic_inc(&mNextConnId); 255 sp<Client> c = new Client(this, pid, connId, client, audioSessionId); 256 LOGV("Create new client(%d) from pid %d, url=%s, connId=%d, audioSessionId=%d", 257 connId, pid, url, connId, audioSessionId); 258 if (NO_ERROR != c->setDataSource(url, headers)) 259 { 260 c.clear(); 261 return c; 262 } 263 wp<Client> w = c; 264 Mutex::Autolock lock(mLock); 265 mClients.add(w); 266 return c; 267} 268 269sp<IMediaPlayer> MediaPlayerService::create(pid_t pid, const sp<IMediaPlayerClient>& client, 270 int fd, int64_t offset, int64_t length, int audioSessionId) 271{ 272 int32_t connId = android_atomic_inc(&mNextConnId); 273 sp<Client> c = new Client(this, pid, connId, client, audioSessionId); 274 LOGV("Create new client(%d) from pid %d, fd=%d, offset=%lld, length=%lld, audioSessionId=%d", 275 connId, pid, fd, offset, length, audioSessionId); 276 if (NO_ERROR != c->setDataSource(fd, offset, length)) { 277 c.clear(); 278 } else { 279 wp<Client> w = c; 280 Mutex::Autolock lock(mLock); 281 mClients.add(w); 282 } 283 ::close(fd); 284 return c; 285} 286 287sp<IOMX> MediaPlayerService::getOMX() { 288 Mutex::Autolock autoLock(mLock); 289 290 if (mOMX.get() == NULL) { 291 mOMX = new OMX; 292 } 293 294 return mOMX; 295} 296 297status_t MediaPlayerService::AudioCache::dump(int fd, const Vector<String16>& args) const 298{ 299 const size_t SIZE = 256; 300 char buffer[SIZE]; 301 String8 result; 302 303 result.append(" AudioCache\n"); 304 if (mHeap != 0) { 305 snprintf(buffer, 255, " heap base(%p), size(%d), flags(%d), device(%s)\n", 306 mHeap->getBase(), mHeap->getSize(), mHeap->getFlags(), mHeap->getDevice()); 307 result.append(buffer); 308 } 309 snprintf(buffer, 255, " msec per frame(%f), channel count(%d), format(%d), frame count(%ld)\n", 310 mMsecsPerFrame, mChannelCount, mFormat, mFrameCount); 311 result.append(buffer); 312 snprintf(buffer, 255, " sample rate(%d), size(%d), error(%d), command complete(%s)\n", 313 mSampleRate, mSize, mError, mCommandComplete?"true":"false"); 314 result.append(buffer); 315 ::write(fd, result.string(), result.size()); 316 return NO_ERROR; 317} 318 319status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const 320{ 321 const size_t SIZE = 256; 322 char buffer[SIZE]; 323 String8 result; 324 325 result.append(" AudioOutput\n"); 326 snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", 327 mStreamType, mLeftVolume, mRightVolume); 328 result.append(buffer); 329 snprintf(buffer, 255, " msec per frame(%f), latency (%d)\n", 330 mMsecsPerFrame, mLatency); 331 result.append(buffer); 332 snprintf(buffer, 255, " aux effect id(%d), send level (%f)\n", 333 mAuxEffectId, mSendLevel); 334 result.append(buffer); 335 336 ::write(fd, result.string(), result.size()); 337 if (mTrack != 0) { 338 mTrack->dump(fd, args); 339 } 340 return NO_ERROR; 341} 342 343status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) const 344{ 345 const size_t SIZE = 256; 346 char buffer[SIZE]; 347 String8 result; 348 result.append(" Client\n"); 349 snprintf(buffer, 255, " pid(%d), connId(%d), status(%d), looping(%s)\n", 350 mPid, mConnId, mStatus, mLoop?"true": "false"); 351 result.append(buffer); 352 write(fd, result.string(), result.size()); 353 if (mAudioOutput != 0) { 354 mAudioOutput->dump(fd, args); 355 } 356 write(fd, "\n", 1); 357 return NO_ERROR; 358} 359 360static int myTid() { 361#ifdef HAVE_GETTID 362 return gettid(); 363#else 364 return getpid(); 365#endif 366} 367 368#if defined(__arm__) 369extern "C" void get_malloc_leak_info(uint8_t** info, size_t* overallSize, 370 size_t* infoSize, size_t* totalMemory, size_t* backtraceSize); 371extern "C" void free_malloc_leak_info(uint8_t* info); 372 373// Use the String-class below instead of String8 to allocate all memory 374// beforehand and not reenter the heap while we are examining it... 375struct MyString8 { 376 static const size_t MAX_SIZE = 256 * 1024; 377 378 MyString8() 379 : mPtr((char *)malloc(MAX_SIZE)) { 380 *mPtr = '\0'; 381 } 382 383 ~MyString8() { 384 free(mPtr); 385 } 386 387 void append(const char *s) { 388 strcat(mPtr, s); 389 } 390 391 const char *string() const { 392 return mPtr; 393 } 394 395 size_t size() const { 396 return strlen(mPtr); 397 } 398 399private: 400 char *mPtr; 401 402 MyString8(const MyString8 &); 403 MyString8 &operator=(const MyString8 &); 404}; 405 406void memStatus(int fd, const Vector<String16>& args) 407{ 408 const size_t SIZE = 256; 409 char buffer[SIZE]; 410 MyString8 result; 411 412 typedef struct { 413 size_t size; 414 size_t dups; 415 intptr_t * backtrace; 416 } AllocEntry; 417 418 uint8_t *info = NULL; 419 size_t overallSize = 0; 420 size_t infoSize = 0; 421 size_t totalMemory = 0; 422 size_t backtraceSize = 0; 423 424 get_malloc_leak_info(&info, &overallSize, &infoSize, &totalMemory, &backtraceSize); 425 if (info) { 426 uint8_t *ptr = info; 427 size_t count = overallSize / infoSize; 428 429 snprintf(buffer, SIZE, " Allocation count %i\n", count); 430 result.append(buffer); 431 snprintf(buffer, SIZE, " Total memory %i\n", totalMemory); 432 result.append(buffer); 433 434 AllocEntry * entries = new AllocEntry[count]; 435 436 for (size_t i = 0; i < count; i++) { 437 // Each entry should be size_t, size_t, intptr_t[backtraceSize] 438 AllocEntry *e = &entries[i]; 439 440 e->size = *reinterpret_cast<size_t *>(ptr); 441 ptr += sizeof(size_t); 442 443 e->dups = *reinterpret_cast<size_t *>(ptr); 444 ptr += sizeof(size_t); 445 446 e->backtrace = reinterpret_cast<intptr_t *>(ptr); 447 ptr += sizeof(intptr_t) * backtraceSize; 448 } 449 450 // Now we need to sort the entries. They come sorted by size but 451 // not by stack trace which causes problems using diff. 452 bool moved; 453 do { 454 moved = false; 455 for (size_t i = 0; i < (count - 1); i++) { 456 AllocEntry *e1 = &entries[i]; 457 AllocEntry *e2 = &entries[i+1]; 458 459 bool swap = e1->size < e2->size; 460 if (e1->size == e2->size) { 461 for(size_t j = 0; j < backtraceSize; j++) { 462 if (e1->backtrace[j] == e2->backtrace[j]) { 463 continue; 464 } 465 swap = e1->backtrace[j] < e2->backtrace[j]; 466 break; 467 } 468 } 469 if (swap) { 470 AllocEntry t = entries[i]; 471 entries[i] = entries[i+1]; 472 entries[i+1] = t; 473 moved = true; 474 } 475 } 476 } while (moved); 477 478 for (size_t i = 0; i < count; i++) { 479 AllocEntry *e = &entries[i]; 480 481 snprintf(buffer, SIZE, "size %8i, dup %4i, ", e->size, e->dups); 482 result.append(buffer); 483 for (size_t ct = 0; (ct < backtraceSize) && e->backtrace[ct]; ct++) { 484 if (ct) { 485 result.append(", "); 486 } 487 snprintf(buffer, SIZE, "0x%08x", e->backtrace[ct]); 488 result.append(buffer); 489 } 490 result.append("\n"); 491 } 492 493 delete[] entries; 494 free_malloc_leak_info(info); 495 } 496 497 write(fd, result.string(), result.size()); 498} 499#endif 500 501status_t MediaPlayerService::dump(int fd, const Vector<String16>& args) 502{ 503 const size_t SIZE = 256; 504 char buffer[SIZE]; 505 String8 result; 506 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 507 snprintf(buffer, SIZE, "Permission Denial: " 508 "can't dump MediaPlayerService from pid=%d, uid=%d\n", 509 IPCThreadState::self()->getCallingPid(), 510 IPCThreadState::self()->getCallingUid()); 511 result.append(buffer); 512 } else { 513 Mutex::Autolock lock(mLock); 514 for (int i = 0, n = mClients.size(); i < n; ++i) { 515 sp<Client> c = mClients[i].promote(); 516 if (c != 0) c->dump(fd, args); 517 } 518 if (mMediaRecorderClients.size() == 0) { 519 result.append(" No media recorder client\n\n"); 520 } else { 521 for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) { 522 sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote(); 523 snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n", c->mPid); 524 result.append(buffer); 525 write(fd, result.string(), result.size()); 526 result = "\n"; 527 c->dump(fd, args); 528 } 529 } 530 531 result.append(" Files opened and/or mapped:\n"); 532 snprintf(buffer, SIZE, "/proc/%d/maps", myTid()); 533 FILE *f = fopen(buffer, "r"); 534 if (f) { 535 while (!feof(f)) { 536 fgets(buffer, SIZE, f); 537 if (strstr(buffer, " /sdcard/") || 538 strstr(buffer, " /system/sounds/") || 539 strstr(buffer, " /system/media/")) { 540 result.append(" "); 541 result.append(buffer); 542 } 543 } 544 fclose(f); 545 } else { 546 result.append("couldn't open "); 547 result.append(buffer); 548 result.append("\n"); 549 } 550 551 snprintf(buffer, SIZE, "/proc/%d/fd", myTid()); 552 DIR *d = opendir(buffer); 553 if (d) { 554 struct dirent *ent; 555 while((ent = readdir(d)) != NULL) { 556 if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) { 557 snprintf(buffer, SIZE, "/proc/%d/fd/%s", myTid(), ent->d_name); 558 struct stat s; 559 if (lstat(buffer, &s) == 0) { 560 if ((s.st_mode & S_IFMT) == S_IFLNK) { 561 char linkto[256]; 562 int len = readlink(buffer, linkto, sizeof(linkto)); 563 if(len > 0) { 564 if(len > 255) { 565 linkto[252] = '.'; 566 linkto[253] = '.'; 567 linkto[254] = '.'; 568 linkto[255] = 0; 569 } else { 570 linkto[len] = 0; 571 } 572 if (strstr(linkto, "/sdcard/") == linkto || 573 strstr(linkto, "/system/sounds/") == linkto || 574 strstr(linkto, "/system/media/") == linkto) { 575 result.append(" "); 576 result.append(buffer); 577 result.append(" -> "); 578 result.append(linkto); 579 result.append("\n"); 580 } 581 } 582 } else { 583 result.append(" unexpected type for "); 584 result.append(buffer); 585 result.append("\n"); 586 } 587 } 588 } 589 } 590 closedir(d); 591 } else { 592 result.append("couldn't open "); 593 result.append(buffer); 594 result.append("\n"); 595 } 596 597#if defined(__arm__) 598 bool dumpMem = false; 599 for (size_t i = 0; i < args.size(); i++) { 600 if (args[i] == String16("-m")) { 601 dumpMem = true; 602 } 603 } 604 if (dumpMem) { 605 memStatus(fd, args); 606 } 607#endif 608 } 609 write(fd, result.string(), result.size()); 610 return NO_ERROR; 611} 612 613void MediaPlayerService::removeClient(wp<Client> client) 614{ 615 Mutex::Autolock lock(mLock); 616 mClients.remove(client); 617} 618 619MediaPlayerService::Client::Client(const sp<MediaPlayerService>& service, pid_t pid, 620 int32_t connId, const sp<IMediaPlayerClient>& client, int audioSessionId) 621{ 622 LOGV("Client(%d) constructor", connId); 623 mPid = pid; 624 mConnId = connId; 625 mService = service; 626 mClient = client; 627 mLoop = false; 628 mStatus = NO_INIT; 629 mAudioSessionId = audioSessionId; 630 631#if CALLBACK_ANTAGONIZER 632 LOGD("create Antagonizer"); 633 mAntagonizer = new Antagonizer(notify, this); 634#endif 635} 636 637MediaPlayerService::Client::~Client() 638{ 639 LOGV("Client(%d) destructor pid = %d", mConnId, mPid); 640 mAudioOutput.clear(); 641 wp<Client> client(this); 642 disconnect(); 643 mService->removeClient(client); 644} 645 646void MediaPlayerService::Client::disconnect() 647{ 648 LOGV("disconnect(%d) from pid %d", mConnId, mPid); 649 // grab local reference and clear main reference to prevent future 650 // access to object 651 sp<MediaPlayerBase> p; 652 { 653 Mutex::Autolock l(mLock); 654 p = mPlayer; 655 } 656 mClient.clear(); 657 658 mPlayer.clear(); 659 660 // clear the notification to prevent callbacks to dead client 661 // and reset the player. We assume the player will serialize 662 // access to itself if necessary. 663 if (p != 0) { 664 p->setNotifyCallback(0, 0); 665#if CALLBACK_ANTAGONIZER 666 LOGD("kill Antagonizer"); 667 mAntagonizer->kill(); 668#endif 669 p->reset(); 670 } 671 672 IPCThreadState::self()->flushCommands(); 673} 674 675static player_type getDefaultPlayerType() { 676 return STAGEFRIGHT_PLAYER; 677} 678 679player_type getPlayerType(int fd, int64_t offset, int64_t length) 680{ 681 char buf[20]; 682 lseek(fd, offset, SEEK_SET); 683 read(fd, buf, sizeof(buf)); 684 lseek(fd, offset, SEEK_SET); 685 686 long ident = *((long*)buf); 687 688 // Ogg vorbis? 689 if (ident == 0x5367674f) // 'OggS' 690 return STAGEFRIGHT_PLAYER; 691 692#ifndef NO_OPENCORE 693 if (ident == 0x75b22630) { 694 // The magic number for .asf files, i.e. wmv and wma content. 695 // These are not currently supported through stagefright. 696 return PV_PLAYER; 697 } 698#endif 699 700 // Some kind of MIDI? 701 EAS_DATA_HANDLE easdata; 702 if (EAS_Init(&easdata) == EAS_SUCCESS) { 703 EAS_FILE locator; 704 locator.path = NULL; 705 locator.fd = fd; 706 locator.offset = offset; 707 locator.length = length; 708 EAS_HANDLE eashandle; 709 if (EAS_OpenFile(easdata, &locator, &eashandle) == EAS_SUCCESS) { 710 EAS_CloseFile(easdata, eashandle); 711 EAS_Shutdown(easdata); 712 return SONIVOX_PLAYER; 713 } 714 EAS_Shutdown(easdata); 715 } 716 717 return getDefaultPlayerType(); 718} 719 720player_type getPlayerType(const char* url) 721{ 722 if (TestPlayerStub::canBeUsed(url)) { 723 return TEST_PLAYER; 724 } 725 726 // use MidiFile for MIDI extensions 727 int lenURL = strlen(url); 728 for (int i = 0; i < NELEM(FILE_EXTS); ++i) { 729 int len = strlen(FILE_EXTS[i].extension); 730 int start = lenURL - len; 731 if (start > 0) { 732 if (!strncasecmp(url + start, FILE_EXTS[i].extension, len)) { 733 return FILE_EXTS[i].playertype; 734 } 735 } 736 } 737 738 if (!strncasecmp(url, "rtsp://", 7)) { 739 char value[PROPERTY_VALUE_MAX]; 740 if (property_get("media.stagefright.enable-rtsp", value, NULL) 741 && (strcmp(value, "1") && strcasecmp(value, "true"))) { 742 // For now, we're going to use PV for rtsp-based playback 743 // by default until we can clear up a few more issues. 744 return PV_PLAYER; 745 } 746 } 747 748 return getDefaultPlayerType(); 749} 750 751static sp<MediaPlayerBase> createPlayer(player_type playerType, void* cookie, 752 notify_callback_f notifyFunc) 753{ 754 sp<MediaPlayerBase> p; 755 switch (playerType) { 756#ifndef NO_OPENCORE 757 case PV_PLAYER: 758 LOGV(" create PVPlayer"); 759 p = new PVPlayer(); 760 break; 761#endif 762 case SONIVOX_PLAYER: 763 LOGV(" create MidiFile"); 764 p = new MidiFile(); 765 break; 766 case STAGEFRIGHT_PLAYER: 767 LOGV(" create StagefrightPlayer"); 768 p = new StagefrightPlayer; 769 break; 770 case TEST_PLAYER: 771 LOGV("Create Test Player stub"); 772 p = new TestPlayerStub(); 773 break; 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::setVideoSurface(const sp<ISurface>& surface) 893{ 894 LOGV("[%d] setVideoSurface(%p)", mConnId, surface.get()); 895 sp<MediaPlayerBase> p = getPlayer(); 896 if (p == 0) return UNKNOWN_ERROR; 897 return p->setVideoSurface(surface); 898} 899 900status_t MediaPlayerService::Client::invoke(const Parcel& request, 901 Parcel *reply) 902{ 903 sp<MediaPlayerBase> p = getPlayer(); 904 if (p == NULL) return UNKNOWN_ERROR; 905 return p->invoke(request, reply); 906} 907 908// This call doesn't need to access the native player. 909status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 910{ 911 status_t status; 912 media::Metadata::Filter allow, drop; 913 914 if (unmarshallFilter(filter, &allow, &status) && 915 unmarshallFilter(filter, &drop, &status)) { 916 Mutex::Autolock lock(mLock); 917 918 mMetadataAllow = allow; 919 mMetadataDrop = drop; 920 } 921 return status; 922} 923 924status_t MediaPlayerService::Client::getMetadata( 925 bool update_only, bool apply_filter, Parcel *reply) 926{ 927 sp<MediaPlayerBase> player = getPlayer(); 928 if (player == 0) return UNKNOWN_ERROR; 929 930 status_t status; 931 // Placeholder for the return code, updated by the caller. 932 reply->writeInt32(-1); 933 934 media::Metadata::Filter ids; 935 936 // We don't block notifications while we fetch the data. We clear 937 // mMetadataUpdated first so we don't lose notifications happening 938 // during the rest of this call. 939 { 940 Mutex::Autolock lock(mLock); 941 if (update_only) { 942 ids = mMetadataUpdated; 943 } 944 mMetadataUpdated.clear(); 945 } 946 947 media::Metadata metadata(reply); 948 949 metadata.appendHeader(); 950 status = player->getMetadata(ids, reply); 951 952 if (status != OK) { 953 metadata.resetParcel(); 954 LOGE("getMetadata failed %d", status); 955 return status; 956 } 957 958 // FIXME: Implement filtering on the result. Not critical since 959 // filtering takes place on the update notifications already. This 960 // would be when all the metadata are fetch and a filter is set. 961 962 // Everything is fine, update the metadata length. 963 metadata.updateLength(); 964 return OK; 965} 966 967status_t MediaPlayerService::Client::suspend() { 968 sp<MediaPlayerBase> p = getPlayer(); 969 if (p == 0) return UNKNOWN_ERROR; 970 971 return p->suspend(); 972} 973 974status_t MediaPlayerService::Client::resume() { 975 sp<MediaPlayerBase> p = getPlayer(); 976 if (p == 0) return UNKNOWN_ERROR; 977 978 return p->resume(); 979} 980 981status_t MediaPlayerService::Client::prepareAsync() 982{ 983 LOGV("[%d] prepareAsync", mConnId); 984 sp<MediaPlayerBase> p = getPlayer(); 985 if (p == 0) return UNKNOWN_ERROR; 986 status_t ret = p->prepareAsync(); 987#if CALLBACK_ANTAGONIZER 988 LOGD("start Antagonizer"); 989 if (ret == NO_ERROR) mAntagonizer->start(); 990#endif 991 return ret; 992} 993 994status_t MediaPlayerService::Client::start() 995{ 996 LOGV("[%d] start", mConnId); 997 sp<MediaPlayerBase> p = getPlayer(); 998 if (p == 0) return UNKNOWN_ERROR; 999 p->setLooping(mLoop); 1000 return p->start(); 1001} 1002 1003status_t MediaPlayerService::Client::stop() 1004{ 1005 LOGV("[%d] stop", mConnId); 1006 sp<MediaPlayerBase> p = getPlayer(); 1007 if (p == 0) return UNKNOWN_ERROR; 1008 return p->stop(); 1009} 1010 1011status_t MediaPlayerService::Client::pause() 1012{ 1013 LOGV("[%d] pause", mConnId); 1014 sp<MediaPlayerBase> p = getPlayer(); 1015 if (p == 0) return UNKNOWN_ERROR; 1016 return p->pause(); 1017} 1018 1019status_t MediaPlayerService::Client::isPlaying(bool* state) 1020{ 1021 *state = false; 1022 sp<MediaPlayerBase> p = getPlayer(); 1023 if (p == 0) return UNKNOWN_ERROR; 1024 *state = p->isPlaying(); 1025 LOGV("[%d] isPlaying: %d", mConnId, *state); 1026 return NO_ERROR; 1027} 1028 1029status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 1030{ 1031 LOGV("getCurrentPosition"); 1032 sp<MediaPlayerBase> p = getPlayer(); 1033 if (p == 0) return UNKNOWN_ERROR; 1034 status_t ret = p->getCurrentPosition(msec); 1035 if (ret == NO_ERROR) { 1036 LOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 1037 } else { 1038 LOGE("getCurrentPosition returned %d", ret); 1039 } 1040 return ret; 1041} 1042 1043status_t MediaPlayerService::Client::getDuration(int *msec) 1044{ 1045 LOGV("getDuration"); 1046 sp<MediaPlayerBase> p = getPlayer(); 1047 if (p == 0) return UNKNOWN_ERROR; 1048 status_t ret = p->getDuration(msec); 1049 if (ret == NO_ERROR) { 1050 LOGV("[%d] getDuration = %d", mConnId, *msec); 1051 } else { 1052 LOGE("getDuration returned %d", ret); 1053 } 1054 return ret; 1055} 1056 1057status_t MediaPlayerService::Client::seekTo(int msec) 1058{ 1059 LOGV("[%d] seekTo(%d)", mConnId, msec); 1060 sp<MediaPlayerBase> p = getPlayer(); 1061 if (p == 0) return UNKNOWN_ERROR; 1062 return p->seekTo(msec); 1063} 1064 1065status_t MediaPlayerService::Client::reset() 1066{ 1067 LOGV("[%d] reset", mConnId); 1068 sp<MediaPlayerBase> p = getPlayer(); 1069 if (p == 0) return UNKNOWN_ERROR; 1070 return p->reset(); 1071} 1072 1073status_t MediaPlayerService::Client::setAudioStreamType(int type) 1074{ 1075 LOGV("[%d] setAudioStreamType(%d)", mConnId, type); 1076 // TODO: for hardware output, call player instead 1077 Mutex::Autolock l(mLock); 1078 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 1079 return NO_ERROR; 1080} 1081 1082status_t MediaPlayerService::Client::setLooping(int loop) 1083{ 1084 LOGV("[%d] setLooping(%d)", mConnId, loop); 1085 mLoop = loop; 1086 sp<MediaPlayerBase> p = getPlayer(); 1087 if (p != 0) return p->setLooping(loop); 1088 return NO_ERROR; 1089} 1090 1091status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1092{ 1093 LOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1094 // TODO: for hardware output, call player instead 1095 Mutex::Autolock l(mLock); 1096 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1097 return NO_ERROR; 1098} 1099 1100status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level) 1101{ 1102 LOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level); 1103 Mutex::Autolock l(mLock); 1104 if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level); 1105 return NO_ERROR; 1106} 1107 1108status_t MediaPlayerService::Client::attachAuxEffect(int effectId) 1109{ 1110 LOGV("[%d] attachAuxEffect(%d)", mConnId, effectId); 1111 Mutex::Autolock l(mLock); 1112 if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId); 1113 return NO_ERROR; 1114} 1115 1116void MediaPlayerService::Client::notify(void* cookie, int msg, int ext1, int ext2) 1117{ 1118 Client* client = static_cast<Client*>(cookie); 1119 1120 if (MEDIA_INFO == msg && 1121 MEDIA_INFO_METADATA_UPDATE == ext1) { 1122 const media::Metadata::Type metadata_type = ext2; 1123 1124 if(client->shouldDropMetadata(metadata_type)) { 1125 return; 1126 } 1127 1128 // Update the list of metadata that have changed. getMetadata 1129 // also access mMetadataUpdated and clears it. 1130 client->addNewMetadataUpdate(metadata_type); 1131 } 1132 LOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1133 client->mClient->notify(msg, ext1, ext2); 1134} 1135 1136 1137bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1138{ 1139 Mutex::Autolock lock(mLock); 1140 1141 if (findMetadata(mMetadataDrop, code)) { 1142 return true; 1143 } 1144 1145 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1146 return false; 1147 } else { 1148 return true; 1149 } 1150} 1151 1152 1153void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1154 Mutex::Autolock lock(mLock); 1155 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1156 mMetadataUpdated.add(metadata_type); 1157 } 1158} 1159 1160#if CALLBACK_ANTAGONIZER 1161const int Antagonizer::interval = 10000; // 10 msecs 1162 1163Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1164 mExit(false), mActive(false), mClient(client), mCb(cb) 1165{ 1166 createThread(callbackThread, this); 1167} 1168 1169void Antagonizer::kill() 1170{ 1171 Mutex::Autolock _l(mLock); 1172 mActive = false; 1173 mExit = true; 1174 mCondition.wait(mLock); 1175} 1176 1177int Antagonizer::callbackThread(void* user) 1178{ 1179 LOGD("Antagonizer started"); 1180 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1181 while (!p->mExit) { 1182 if (p->mActive) { 1183 LOGV("send event"); 1184 p->mCb(p->mClient, 0, 0, 0); 1185 } 1186 usleep(interval); 1187 } 1188 Mutex::Autolock _l(p->mLock); 1189 p->mCondition.signal(); 1190 LOGD("Antagonizer stopped"); 1191 return 0; 1192} 1193#endif 1194 1195static size_t kDefaultHeapSize = 1024 * 1024; // 1MB 1196 1197sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 1198{ 1199 LOGV("decode(%s)", url); 1200 sp<MemoryBase> mem; 1201 sp<MediaPlayerBase> player; 1202 1203 // Protect our precious, precious DRMd ringtones by only allowing 1204 // decoding of http, but not filesystem paths or content Uris. 1205 // If the application wants to decode those, it should open a 1206 // filedescriptor for them and use that. 1207 if (url != NULL && strncmp(url, "http://", 7) != 0) { 1208 LOGD("Can't decode %s by path, use filedescriptor instead", url); 1209 return mem; 1210 } 1211 1212 player_type playerType = getPlayerType(url); 1213 LOGV("player type = %d", playerType); 1214 1215 // create the right type of player 1216 sp<AudioCache> cache = new AudioCache(url); 1217 player = android::createPlayer(playerType, cache.get(), cache->notify); 1218 if (player == NULL) goto Exit; 1219 if (player->hardwareOutput()) goto Exit; 1220 1221 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1222 1223 // set data source 1224 if (player->setDataSource(url) != NO_ERROR) goto Exit; 1225 1226 LOGV("prepare"); 1227 player->prepareAsync(); 1228 1229 LOGV("wait for prepare"); 1230 if (cache->wait() != NO_ERROR) goto Exit; 1231 1232 LOGV("start"); 1233 player->start(); 1234 1235 LOGV("wait for playback complete"); 1236 if (cache->wait() != NO_ERROR) goto Exit; 1237 1238 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1239 *pSampleRate = cache->sampleRate(); 1240 *pNumChannels = cache->channelCount(); 1241 *pFormat = cache->format(); 1242 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1243 1244Exit: 1245 if (player != 0) player->reset(); 1246 return mem; 1247} 1248 1249sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 1250{ 1251 LOGV("decode(%d, %lld, %lld)", fd, offset, length); 1252 sp<MemoryBase> mem; 1253 sp<MediaPlayerBase> player; 1254 1255 player_type playerType = getPlayerType(fd, offset, length); 1256 LOGV("player type = %d", playerType); 1257 1258 // create the right type of player 1259 sp<AudioCache> cache = new AudioCache("decode_fd"); 1260 player = android::createPlayer(playerType, cache.get(), cache->notify); 1261 if (player == NULL) goto Exit; 1262 if (player->hardwareOutput()) goto Exit; 1263 1264 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1265 1266 // set data source 1267 if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit; 1268 1269 LOGV("prepare"); 1270 player->prepareAsync(); 1271 1272 LOGV("wait for prepare"); 1273 if (cache->wait() != NO_ERROR) goto Exit; 1274 1275 LOGV("start"); 1276 player->start(); 1277 1278 LOGV("wait for playback complete"); 1279 if (cache->wait() != NO_ERROR) goto Exit; 1280 1281 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1282 *pSampleRate = cache->sampleRate(); 1283 *pNumChannels = cache->channelCount(); 1284 *pFormat = cache->format(); 1285 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1286 1287Exit: 1288 if (player != 0) player->reset(); 1289 ::close(fd); 1290 return mem; 1291} 1292 1293 1294#undef LOG_TAG 1295#define LOG_TAG "AudioSink" 1296MediaPlayerService::AudioOutput::AudioOutput(int sessionId) 1297 : mCallback(NULL), 1298 mCallbackCookie(NULL), 1299 mSessionId(sessionId) { 1300 LOGV("AudioOutput(%d)", sessionId); 1301 mTrack = 0; 1302 mStreamType = AudioSystem::MUSIC; 1303 mLeftVolume = 1.0; 1304 mRightVolume = 1.0; 1305 mLatency = 0; 1306 mMsecsPerFrame = 0; 1307 mAuxEffectId = 0; 1308 mSendLevel = 0.0; 1309 setMinBufferCount(); 1310} 1311 1312MediaPlayerService::AudioOutput::~AudioOutput() 1313{ 1314 close(); 1315} 1316 1317void MediaPlayerService::AudioOutput::setMinBufferCount() 1318{ 1319 char value[PROPERTY_VALUE_MAX]; 1320 if (property_get("ro.kernel.qemu", value, 0)) { 1321 mIsOnEmulator = true; 1322 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1323 } 1324} 1325 1326bool MediaPlayerService::AudioOutput::isOnEmulator() 1327{ 1328 setMinBufferCount(); 1329 return mIsOnEmulator; 1330} 1331 1332int MediaPlayerService::AudioOutput::getMinBufferCount() 1333{ 1334 setMinBufferCount(); 1335 return mMinBufferCount; 1336} 1337 1338ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1339{ 1340 if (mTrack == 0) return NO_INIT; 1341 return mTrack->frameCount() * frameSize(); 1342} 1343 1344ssize_t MediaPlayerService::AudioOutput::frameCount() const 1345{ 1346 if (mTrack == 0) return NO_INIT; 1347 return mTrack->frameCount(); 1348} 1349 1350ssize_t MediaPlayerService::AudioOutput::channelCount() const 1351{ 1352 if (mTrack == 0) return NO_INIT; 1353 return mTrack->channelCount(); 1354} 1355 1356ssize_t MediaPlayerService::AudioOutput::frameSize() const 1357{ 1358 if (mTrack == 0) return NO_INIT; 1359 return mTrack->frameSize(); 1360} 1361 1362uint32_t MediaPlayerService::AudioOutput::latency () const 1363{ 1364 return mLatency; 1365} 1366 1367float MediaPlayerService::AudioOutput::msecsPerFrame() const 1368{ 1369 return mMsecsPerFrame; 1370} 1371 1372status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) 1373{ 1374 if (mTrack == 0) return NO_INIT; 1375 return mTrack->getPosition(position); 1376} 1377 1378status_t MediaPlayerService::AudioOutput::open( 1379 uint32_t sampleRate, int channelCount, int format, int bufferCount, 1380 AudioCallback cb, void *cookie) 1381{ 1382 mCallback = cb; 1383 mCallbackCookie = cookie; 1384 1385 // Check argument "bufferCount" against the mininum buffer count 1386 if (bufferCount < mMinBufferCount) { 1387 LOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount); 1388 bufferCount = mMinBufferCount; 1389 1390 } 1391 LOGV("open(%u, %d, %d, %d, %d)", sampleRate, channelCount, format, bufferCount,mSessionId); 1392 if (mTrack) close(); 1393 int afSampleRate; 1394 int afFrameCount; 1395 int frameCount; 1396 1397 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1398 return NO_INIT; 1399 } 1400 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1401 return NO_INIT; 1402 } 1403 1404 frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate; 1405 1406 AudioTrack *t; 1407 if (mCallback != NULL) { 1408 t = new AudioTrack( 1409 mStreamType, 1410 sampleRate, 1411 format, 1412 (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO, 1413 frameCount, 1414 0 /* flags */, 1415 CallbackWrapper, 1416 this, 1417 0, 1418 mSessionId); 1419 } else { 1420 t = new AudioTrack( 1421 mStreamType, 1422 sampleRate, 1423 format, 1424 (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO, 1425 frameCount, 1426 0, 1427 NULL, 1428 NULL, 1429 0, 1430 mSessionId); 1431 } 1432 1433 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1434 LOGE("Unable to create audio track"); 1435 delete t; 1436 return NO_INIT; 1437 } 1438 1439 LOGV("setVolume"); 1440 t->setVolume(mLeftVolume, mRightVolume); 1441 1442 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1443 mLatency = t->latency(); 1444 mTrack = t; 1445 1446 t->setAuxEffectSendLevel(mSendLevel); 1447 return t->attachAuxEffect(mAuxEffectId);; 1448} 1449 1450void MediaPlayerService::AudioOutput::start() 1451{ 1452 LOGV("start"); 1453 if (mTrack) { 1454 mTrack->setVolume(mLeftVolume, mRightVolume); 1455 mTrack->setAuxEffectSendLevel(mSendLevel); 1456 mTrack->start(); 1457 } 1458} 1459 1460 1461 1462ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size) 1463{ 1464 LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 1465 1466 //LOGV("write(%p, %u)", buffer, size); 1467 if (mTrack) { 1468 ssize_t ret = mTrack->write(buffer, size); 1469 return ret; 1470 } 1471 return NO_INIT; 1472} 1473 1474void MediaPlayerService::AudioOutput::stop() 1475{ 1476 LOGV("stop"); 1477 if (mTrack) mTrack->stop(); 1478} 1479 1480void MediaPlayerService::AudioOutput::flush() 1481{ 1482 LOGV("flush"); 1483 if (mTrack) mTrack->flush(); 1484} 1485 1486void MediaPlayerService::AudioOutput::pause() 1487{ 1488 LOGV("pause"); 1489 if (mTrack) mTrack->pause(); 1490} 1491 1492void MediaPlayerService::AudioOutput::close() 1493{ 1494 LOGV("close"); 1495 delete mTrack; 1496 mTrack = 0; 1497} 1498 1499void MediaPlayerService::AudioOutput::setVolume(float left, float right) 1500{ 1501 LOGV("setVolume(%f, %f)", left, right); 1502 mLeftVolume = left; 1503 mRightVolume = right; 1504 if (mTrack) { 1505 mTrack->setVolume(left, right); 1506 } 1507} 1508 1509status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level) 1510{ 1511 LOGV("setAuxEffectSendLevel(%f)", level); 1512 mSendLevel = level; 1513 if (mTrack) { 1514 return mTrack->setAuxEffectSendLevel(level); 1515 } 1516 return NO_ERROR; 1517} 1518 1519status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId) 1520{ 1521 LOGV("attachAuxEffect(%d)", effectId); 1522 mAuxEffectId = effectId; 1523 if (mTrack) { 1524 return mTrack->attachAuxEffect(effectId); 1525 } 1526 return NO_ERROR; 1527} 1528 1529// static 1530void MediaPlayerService::AudioOutput::CallbackWrapper( 1531 int event, void *cookie, void *info) { 1532 //LOGV("callbackwrapper"); 1533 if (event != AudioTrack::EVENT_MORE_DATA) { 1534 return; 1535 } 1536 1537 AudioOutput *me = (AudioOutput *)cookie; 1538 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 1539 1540 size_t actualSize = (*me->mCallback)( 1541 me, buffer->raw, buffer->size, me->mCallbackCookie); 1542 1543 buffer->size = actualSize; 1544 1545} 1546 1547#undef LOG_TAG 1548#define LOG_TAG "AudioCache" 1549MediaPlayerService::AudioCache::AudioCache(const char* name) : 1550 mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0), 1551 mError(NO_ERROR), mCommandComplete(false) 1552{ 1553 // create ashmem heap 1554 mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name); 1555} 1556 1557uint32_t MediaPlayerService::AudioCache::latency () const 1558{ 1559 return 0; 1560} 1561 1562float MediaPlayerService::AudioCache::msecsPerFrame() const 1563{ 1564 return mMsecsPerFrame; 1565} 1566 1567status_t MediaPlayerService::AudioCache::getPosition(uint32_t *position) 1568{ 1569 if (position == 0) return BAD_VALUE; 1570 *position = mSize; 1571 return NO_ERROR; 1572} 1573 1574//////////////////////////////////////////////////////////////////////////////// 1575 1576struct CallbackThread : public Thread { 1577 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 1578 MediaPlayerBase::AudioSink::AudioCallback cb, 1579 void *cookie); 1580 1581protected: 1582 virtual ~CallbackThread(); 1583 1584 virtual bool threadLoop(); 1585 1586private: 1587 wp<MediaPlayerBase::AudioSink> mSink; 1588 MediaPlayerBase::AudioSink::AudioCallback mCallback; 1589 void *mCookie; 1590 void *mBuffer; 1591 size_t mBufferSize; 1592 1593 CallbackThread(const CallbackThread &); 1594 CallbackThread &operator=(const CallbackThread &); 1595}; 1596 1597CallbackThread::CallbackThread( 1598 const wp<MediaPlayerBase::AudioSink> &sink, 1599 MediaPlayerBase::AudioSink::AudioCallback cb, 1600 void *cookie) 1601 : mSink(sink), 1602 mCallback(cb), 1603 mCookie(cookie), 1604 mBuffer(NULL), 1605 mBufferSize(0) { 1606} 1607 1608CallbackThread::~CallbackThread() { 1609 if (mBuffer) { 1610 free(mBuffer); 1611 mBuffer = NULL; 1612 } 1613} 1614 1615bool CallbackThread::threadLoop() { 1616 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 1617 if (sink == NULL) { 1618 return false; 1619 } 1620 1621 if (mBuffer == NULL) { 1622 mBufferSize = sink->bufferSize(); 1623 mBuffer = malloc(mBufferSize); 1624 } 1625 1626 size_t actualSize = 1627 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie); 1628 1629 if (actualSize > 0) { 1630 sink->write(mBuffer, actualSize); 1631 } 1632 1633 return true; 1634} 1635 1636//////////////////////////////////////////////////////////////////////////////// 1637 1638status_t MediaPlayerService::AudioCache::open( 1639 uint32_t sampleRate, int channelCount, int format, int bufferCount, 1640 AudioCallback cb, void *cookie) 1641{ 1642 LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount); 1643 if (mHeap->getHeapID() < 0) { 1644 return NO_INIT; 1645 } 1646 1647 mSampleRate = sampleRate; 1648 mChannelCount = (uint16_t)channelCount; 1649 mFormat = (uint16_t)format; 1650 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1651 1652 if (cb != NULL) { 1653 mCallbackThread = new CallbackThread(this, cb, cookie); 1654 } 1655 return NO_ERROR; 1656} 1657 1658void MediaPlayerService::AudioCache::start() { 1659 if (mCallbackThread != NULL) { 1660 mCallbackThread->run("AudioCache callback"); 1661 } 1662} 1663 1664void MediaPlayerService::AudioCache::stop() { 1665 if (mCallbackThread != NULL) { 1666 mCallbackThread->requestExitAndWait(); 1667 } 1668} 1669 1670ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size) 1671{ 1672 LOGV("write(%p, %u)", buffer, size); 1673 if ((buffer == 0) || (size == 0)) return size; 1674 1675 uint8_t* p = static_cast<uint8_t*>(mHeap->getBase()); 1676 if (p == NULL) return NO_INIT; 1677 p += mSize; 1678 LOGV("memcpy(%p, %p, %u)", p, buffer, size); 1679 if (mSize + size > mHeap->getSize()) { 1680 LOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize()); 1681 size = mHeap->getSize() - mSize; 1682 } 1683 memcpy(p, buffer, size); 1684 mSize += size; 1685 return size; 1686} 1687 1688// call with lock held 1689status_t MediaPlayerService::AudioCache::wait() 1690{ 1691 Mutex::Autolock lock(mLock); 1692 while (!mCommandComplete) { 1693 mSignal.wait(mLock); 1694 } 1695 mCommandComplete = false; 1696 1697 if (mError == NO_ERROR) { 1698 LOGV("wait - success"); 1699 } else { 1700 LOGV("wait - error"); 1701 } 1702 return mError; 1703} 1704 1705void MediaPlayerService::AudioCache::notify(void* cookie, int msg, int ext1, int ext2) 1706{ 1707 LOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2); 1708 AudioCache* p = static_cast<AudioCache*>(cookie); 1709 1710 // ignore buffering messages 1711 switch (msg) 1712 { 1713 case MEDIA_ERROR: 1714 LOGE("Error %d, %d occurred", ext1, ext2); 1715 p->mError = ext1; 1716 break; 1717 case MEDIA_PREPARED: 1718 LOGV("prepared"); 1719 break; 1720 case MEDIA_PLAYBACK_COMPLETE: 1721 LOGV("playback complete"); 1722 break; 1723 default: 1724 LOGV("ignored"); 1725 return; 1726 } 1727 1728 // wake up thread 1729 Mutex::Autolock lock(p->mLock); 1730 p->mCommandComplete = true; 1731 p->mSignal.signal(); 1732} 1733 1734} // namespace android 1735