MediaPlayerService.cpp revision 4e92c7efc68b5d7635a32dbd283ab8558ad9bdd6
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 "VorbisPlayer.h" 60#include <media/PVPlayer.h> 61#include "TestPlayerStub.h" 62#include "StagefrightPlayer.h" 63 64#include <OMX.h> 65 66/* desktop Linux needs a little help with gettid() */ 67#if defined(HAVE_GETTID) && !defined(HAVE_ANDROID_OS) 68#define __KERNEL__ 69# include <linux/unistd.h> 70#ifdef _syscall0 71_syscall0(pid_t,gettid) 72#else 73pid_t gettid() { return syscall(__NR_gettid);} 74#endif 75#undef __KERNEL__ 76#endif 77 78namespace { 79using android::media::Metadata; 80using android::status_t; 81using android::OK; 82using android::BAD_VALUE; 83using android::NOT_ENOUGH_DATA; 84using android::Parcel; 85 86// Max number of entries in the filter. 87const int kMaxFilterSize = 64; // I pulled that out of thin air. 88 89// FIXME: Move all the metadata related function in the Metadata.cpp 90 91 92// Unmarshall a filter from a Parcel. 93// Filter format in a parcel: 94// 95// 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 96// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 97// | number of entries (n) | 98// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 99// | metadata type 1 | 100// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 101// | metadata type 2 | 102// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 103// .... 104// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 105// | metadata type n | 106// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 107// 108// @param p Parcel that should start with a filter. 109// @param[out] filter On exit contains the list of metadata type to be 110// filtered. 111// @param[out] status On exit contains the status code to be returned. 112// @return true if the parcel starts with a valid filter. 113bool unmarshallFilter(const Parcel& p, 114 Metadata::Filter *filter, 115 status_t *status) 116{ 117 int32_t val; 118 if (p.readInt32(&val) != OK) 119 { 120 LOGE("Failed to read filter's length"); 121 *status = NOT_ENOUGH_DATA; 122 return false; 123 } 124 125 if( val > kMaxFilterSize || val < 0) 126 { 127 LOGE("Invalid filter len %d", val); 128 *status = BAD_VALUE; 129 return false; 130 } 131 132 const size_t num = val; 133 134 filter->clear(); 135 filter->setCapacity(num); 136 137 size_t size = num * sizeof(Metadata::Type); 138 139 140 if (p.dataAvail() < size) 141 { 142 LOGE("Filter too short expected %d but got %d", size, p.dataAvail()); 143 *status = NOT_ENOUGH_DATA; 144 return false; 145 } 146 147 const Metadata::Type *data = 148 static_cast<const Metadata::Type*>(p.readInplace(size)); 149 150 if (NULL == data) 151 { 152 LOGE("Filter had no data"); 153 *status = BAD_VALUE; 154 return false; 155 } 156 157 // TODO: The stl impl of vector would be more efficient here 158 // because it degenerates into a memcpy on pod types. Try to 159 // replace later or use stl::set. 160 for (size_t i = 0; i < num; ++i) 161 { 162 filter->add(*data); 163 ++data; 164 } 165 *status = OK; 166 return true; 167} 168 169// @param filter Of metadata type. 170// @param val To be searched. 171// @return true if a match was found. 172bool findMetadata(const Metadata::Filter& filter, const int32_t val) 173{ 174 // Deal with empty and ANY right away 175 if (filter.isEmpty()) return false; 176 if (filter[0] == Metadata::kAny) return true; 177 178 return filter.indexOf(val) >= 0; 179} 180 181} // anonymous namespace 182 183 184namespace android { 185 186// TODO: Temp hack until we can register players 187typedef struct { 188 const char *extension; 189 const player_type playertype; 190} extmap; 191extmap FILE_EXTS [] = { 192 {".mid", SONIVOX_PLAYER}, 193 {".midi", SONIVOX_PLAYER}, 194 {".smf", SONIVOX_PLAYER}, 195 {".xmf", SONIVOX_PLAYER}, 196 {".imy", SONIVOX_PLAYER}, 197 {".rtttl", SONIVOX_PLAYER}, 198 {".rtx", SONIVOX_PLAYER}, 199 {".ota", SONIVOX_PLAYER}, 200 {".ogg", VORBIS_PLAYER}, 201 {".oga", VORBIS_PLAYER}, 202#ifndef NO_OPENCORE 203 {".wma", PV_PLAYER}, 204 {".wmv", PV_PLAYER}, 205 {".asf", PV_PLAYER}, 206#endif 207}; 208 209// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround 210/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4; 211/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false; 212 213void MediaPlayerService::instantiate() { 214 defaultServiceManager()->addService( 215 String16("media.player"), new MediaPlayerService()); 216} 217 218MediaPlayerService::MediaPlayerService() 219{ 220 LOGV("MediaPlayerService created"); 221 mNextConnId = 1; 222} 223 224MediaPlayerService::~MediaPlayerService() 225{ 226 LOGV("MediaPlayerService destroyed"); 227} 228 229sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(pid_t pid) 230{ 231#ifndef NO_OPENCORE 232 sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid); 233 wp<MediaRecorderClient> w = recorder; 234 Mutex::Autolock lock(mLock); 235 mMediaRecorderClients.add(w); 236#else 237 sp<MediaRecorderClient> recorder = NULL; 238#endif 239 LOGV("Create new media recorder client from pid %d", pid); 240 return recorder; 241} 242 243void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client) 244{ 245 Mutex::Autolock lock(mLock); 246 mMediaRecorderClients.remove(client); 247 LOGV("Delete media recorder client"); 248} 249 250sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever(pid_t pid) 251{ 252 sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid); 253 LOGV("Create new media retriever from pid %d", pid); 254 return retriever; 255} 256 257sp<IMediaPlayer> MediaPlayerService::create( 258 pid_t pid, const sp<IMediaPlayerClient>& client, const char* url, 259 const KeyedVector<String8, String8> *headers) 260{ 261 int32_t connId = android_atomic_inc(&mNextConnId); 262 sp<Client> c = new Client(this, pid, connId, client); 263 LOGV("Create new client(%d) from pid %d, url=%s, connId=%d", connId, pid, url, connId); 264 if (NO_ERROR != c->setDataSource(url, headers)) 265 { 266 c.clear(); 267 return c; 268 } 269 wp<Client> w = c; 270 Mutex::Autolock lock(mLock); 271 mClients.add(w); 272 return c; 273} 274 275sp<IMediaPlayer> MediaPlayerService::create(pid_t pid, const sp<IMediaPlayerClient>& client, 276 int fd, int64_t offset, int64_t length) 277{ 278 int32_t connId = android_atomic_inc(&mNextConnId); 279 sp<Client> c = new Client(this, pid, connId, client); 280 LOGV("Create new client(%d) from pid %d, fd=%d, offset=%lld, length=%lld", 281 connId, pid, fd, offset, length); 282 if (NO_ERROR != c->setDataSource(fd, offset, length)) { 283 c.clear(); 284 } else { 285 wp<Client> w = c; 286 Mutex::Autolock lock(mLock); 287 mClients.add(w); 288 } 289 ::close(fd); 290 return c; 291} 292 293sp<IOMX> MediaPlayerService::getOMX() { 294 Mutex::Autolock autoLock(mLock); 295 296 if (mOMX.get() == NULL) { 297 mOMX = new OMX; 298 } 299 300 return mOMX; 301} 302 303status_t MediaPlayerService::AudioCache::dump(int fd, const Vector<String16>& args) const 304{ 305 const size_t SIZE = 256; 306 char buffer[SIZE]; 307 String8 result; 308 309 result.append(" AudioCache\n"); 310 if (mHeap != 0) { 311 snprintf(buffer, 255, " heap base(%p), size(%d), flags(%d), device(%s)\n", 312 mHeap->getBase(), mHeap->getSize(), mHeap->getFlags(), mHeap->getDevice()); 313 result.append(buffer); 314 } 315 snprintf(buffer, 255, " msec per frame(%f), channel count(%d), format(%d), frame count(%ld)\n", 316 mMsecsPerFrame, mChannelCount, mFormat, mFrameCount); 317 result.append(buffer); 318 snprintf(buffer, 255, " sample rate(%d), size(%d), error(%d), command complete(%s)\n", 319 mSampleRate, mSize, mError, mCommandComplete?"true":"false"); 320 result.append(buffer); 321 ::write(fd, result.string(), result.size()); 322 return NO_ERROR; 323} 324 325status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const 326{ 327 const size_t SIZE = 256; 328 char buffer[SIZE]; 329 String8 result; 330 331 result.append(" AudioOutput\n"); 332 snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", 333 mStreamType, mLeftVolume, mRightVolume); 334 result.append(buffer); 335 snprintf(buffer, 255, " msec per frame(%f), latency (%d)\n", 336 mMsecsPerFrame, mLatency); 337 result.append(buffer); 338 ::write(fd, result.string(), result.size()); 339 if (mTrack != 0) { 340 mTrack->dump(fd, args); 341 } 342 return NO_ERROR; 343} 344 345status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) const 346{ 347 const size_t SIZE = 256; 348 char buffer[SIZE]; 349 String8 result; 350 result.append(" Client\n"); 351 snprintf(buffer, 255, " pid(%d), connId(%d), status(%d), looping(%s)\n", 352 mPid, mConnId, mStatus, mLoop?"true": "false"); 353 result.append(buffer); 354 write(fd, result.string(), result.size()); 355 if (mAudioOutput != 0) { 356 mAudioOutput->dump(fd, args); 357 } 358 write(fd, "\n", 1); 359 return NO_ERROR; 360} 361 362static int myTid() { 363#ifdef HAVE_GETTID 364 return gettid(); 365#else 366 return getpid(); 367#endif 368} 369 370#if defined(__arm__) 371extern "C" void get_malloc_leak_info(uint8_t** info, size_t* overallSize, 372 size_t* infoSize, size_t* totalMemory, size_t* backtraceSize); 373extern "C" void free_malloc_leak_info(uint8_t* info); 374 375// Use the String-class below instead of String8 to allocate all memory 376// beforehand and not reenter the heap while we are examining it... 377struct MyString8 { 378 static const size_t MAX_SIZE = 256 * 1024; 379 380 MyString8() 381 : mPtr((char *)malloc(MAX_SIZE)) { 382 *mPtr = '\0'; 383 } 384 385 ~MyString8() { 386 free(mPtr); 387 } 388 389 void append(const char *s) { 390 strcat(mPtr, s); 391 } 392 393 const char *string() const { 394 return mPtr; 395 } 396 397 size_t size() const { 398 return strlen(mPtr); 399 } 400 401private: 402 char *mPtr; 403 404 MyString8(const MyString8 &); 405 MyString8 &operator=(const MyString8 &); 406}; 407 408void memStatus(int fd, const Vector<String16>& args) 409{ 410 const size_t SIZE = 256; 411 char buffer[SIZE]; 412 MyString8 result; 413 414 typedef struct { 415 size_t size; 416 size_t dups; 417 intptr_t * backtrace; 418 } AllocEntry; 419 420 uint8_t *info = NULL; 421 size_t overallSize = 0; 422 size_t infoSize = 0; 423 size_t totalMemory = 0; 424 size_t backtraceSize = 0; 425 426 get_malloc_leak_info(&info, &overallSize, &infoSize, &totalMemory, &backtraceSize); 427 if (info) { 428 uint8_t *ptr = info; 429 size_t count = overallSize / infoSize; 430 431 snprintf(buffer, SIZE, " Allocation count %i\n", count); 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 for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) { 519 result.append(" MediaRecorderClient\n"); 520 sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote(); 521 snprintf(buffer, 255, " pid(%d)\n\n", c->mPid); 522 result.append(buffer); 523 } 524 525 result.append(" Files opened and/or mapped:\n"); 526 snprintf(buffer, SIZE, "/proc/%d/maps", myTid()); 527 FILE *f = fopen(buffer, "r"); 528 if (f) { 529 while (!feof(f)) { 530 fgets(buffer, SIZE, f); 531 if (strstr(buffer, " /sdcard/") || 532 strstr(buffer, " /system/sounds/") || 533 strstr(buffer, " /system/media/")) { 534 result.append(" "); 535 result.append(buffer); 536 } 537 } 538 fclose(f); 539 } else { 540 result.append("couldn't open "); 541 result.append(buffer); 542 result.append("\n"); 543 } 544 545 snprintf(buffer, SIZE, "/proc/%d/fd", myTid()); 546 DIR *d = opendir(buffer); 547 if (d) { 548 struct dirent *ent; 549 while((ent = readdir(d)) != NULL) { 550 if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) { 551 snprintf(buffer, SIZE, "/proc/%d/fd/%s", myTid(), ent->d_name); 552 struct stat s; 553 if (lstat(buffer, &s) == 0) { 554 if ((s.st_mode & S_IFMT) == S_IFLNK) { 555 char linkto[256]; 556 int len = readlink(buffer, linkto, sizeof(linkto)); 557 if(len > 0) { 558 if(len > 255) { 559 linkto[252] = '.'; 560 linkto[253] = '.'; 561 linkto[254] = '.'; 562 linkto[255] = 0; 563 } else { 564 linkto[len] = 0; 565 } 566 if (strstr(linkto, "/sdcard/") == linkto || 567 strstr(linkto, "/system/sounds/") == linkto || 568 strstr(linkto, "/system/media/") == linkto) { 569 result.append(" "); 570 result.append(buffer); 571 result.append(" -> "); 572 result.append(linkto); 573 result.append("\n"); 574 } 575 } 576 } else { 577 result.append(" unexpected type for "); 578 result.append(buffer); 579 result.append("\n"); 580 } 581 } 582 } 583 } 584 closedir(d); 585 } else { 586 result.append("couldn't open "); 587 result.append(buffer); 588 result.append("\n"); 589 } 590 591#if defined(__arm__) 592 bool dumpMem = false; 593 for (size_t i = 0; i < args.size(); i++) { 594 if (args[i] == String16("-m")) { 595 dumpMem = true; 596 } 597 } 598 if (dumpMem) { 599 memStatus(fd, args); 600 } 601#endif 602 } 603 write(fd, result.string(), result.size()); 604 return NO_ERROR; 605} 606 607void MediaPlayerService::removeClient(wp<Client> client) 608{ 609 Mutex::Autolock lock(mLock); 610 mClients.remove(client); 611} 612 613MediaPlayerService::Client::Client(const sp<MediaPlayerService>& service, pid_t pid, 614 int32_t connId, const sp<IMediaPlayerClient>& client) 615{ 616 LOGV("Client(%d) constructor", connId); 617 mPid = pid; 618 mConnId = connId; 619 mService = service; 620 mClient = client; 621 mLoop = false; 622 mStatus = NO_INIT; 623#if CALLBACK_ANTAGONIZER 624 LOGD("create Antagonizer"); 625 mAntagonizer = new Antagonizer(notify, this); 626#endif 627} 628 629MediaPlayerService::Client::~Client() 630{ 631 LOGV("Client(%d) destructor pid = %d", mConnId, mPid); 632 mAudioOutput.clear(); 633 wp<Client> client(this); 634 disconnect(); 635 mService->removeClient(client); 636} 637 638void MediaPlayerService::Client::disconnect() 639{ 640 LOGV("disconnect(%d) from pid %d", mConnId, mPid); 641 // grab local reference and clear main reference to prevent future 642 // access to object 643 sp<MediaPlayerBase> p; 644 { 645 Mutex::Autolock l(mLock); 646 p = mPlayer; 647 } 648 mClient.clear(); 649 650 mPlayer.clear(); 651 652 // clear the notification to prevent callbacks to dead client 653 // and reset the player. We assume the player will serialize 654 // access to itself if necessary. 655 if (p != 0) { 656 p->setNotifyCallback(0, 0); 657#if CALLBACK_ANTAGONIZER 658 LOGD("kill Antagonizer"); 659 mAntagonizer->kill(); 660#endif 661 p->reset(); 662 } 663 664 IPCThreadState::self()->flushCommands(); 665} 666 667static player_type getDefaultPlayerType() { 668#if BUILD_WITH_FULL_STAGEFRIGHT 669 char value[PROPERTY_VALUE_MAX]; 670 if (property_get("media.stagefright.enable-player", value, NULL) 671 && (!strcmp(value, "1") || !strcasecmp(value, "true"))) { 672 return STAGEFRIGHT_PLAYER; 673 } 674#endif 675 676 return PV_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 VORBIS_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 (!strncmp(url + start, FILE_EXTS[i].extension, len)) { 733 return FILE_EXTS[i].playertype; 734 } 735 } 736 } 737 738 if (!strncasecmp(url, "http://", 7)) { 739 char value[PROPERTY_VALUE_MAX]; 740 if (!property_get("media.stagefright.enable-http", value, NULL) 741 || (strcmp(value, "1") && strcasecmp(value, "true"))) { 742 // For now, we're going to use PV for http-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 VORBIS_PLAYER: 767 LOGV(" create VorbisPlayer"); 768 p = new VorbisPlayer(); 769 break; 770#if BUILD_WITH_FULL_STAGEFRIGHT 771 case STAGEFRIGHT_PLAYER: 772 LOGV(" create StagefrightPlayer"); 773 p = new StagefrightPlayer; 774 break; 775#endif 776 case TEST_PLAYER: 777 LOGV("Create Test Player stub"); 778 p = new TestPlayerStub(); 779 break; 780 } 781 if (p != NULL) { 782 if (p->initCheck() == NO_ERROR) { 783 p->setNotifyCallback(cookie, notifyFunc); 784 } else { 785 p.clear(); 786 } 787 } 788 if (p == NULL) { 789 LOGE("Failed to create player object"); 790 } 791 return p; 792} 793 794sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) 795{ 796 // determine if we have the right player type 797 sp<MediaPlayerBase> p = mPlayer; 798 if ((p != NULL) && (p->playerType() != playerType)) { 799 LOGV("delete player"); 800 p.clear(); 801 } 802 if (p == NULL) { 803 p = android::createPlayer(playerType, this, notify); 804 } 805 return p; 806} 807 808status_t MediaPlayerService::Client::setDataSource( 809 const char *url, const KeyedVector<String8, String8> *headers) 810{ 811 LOGV("setDataSource(%s)", url); 812 if (url == NULL) 813 return UNKNOWN_ERROR; 814 815 if (strncmp(url, "content://", 10) == 0) { 816 // get a filedescriptor for the content Uri and 817 // pass it to the setDataSource(fd) method 818 819 String16 url16(url); 820 int fd = android::openContentProviderFile(url16); 821 if (fd < 0) 822 { 823 LOGE("Couldn't open fd for %s", url); 824 return UNKNOWN_ERROR; 825 } 826 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 827 close(fd); 828 return mStatus; 829 } else { 830 player_type playerType = getPlayerType(url); 831 LOGV("player type = %d", playerType); 832 833 // create the right type of player 834 sp<MediaPlayerBase> p = createPlayer(playerType); 835 if (p == NULL) return NO_INIT; 836 837 if (!p->hardwareOutput()) { 838 mAudioOutput = new AudioOutput(); 839 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 840 } 841 842 // now set data source 843 LOGV(" setDataSource"); 844 mStatus = p->setDataSource(url, headers); 845 if (mStatus == NO_ERROR) { 846 mPlayer = p; 847 } else { 848 LOGE(" error: %d", mStatus); 849 } 850 return mStatus; 851 } 852} 853 854status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 855{ 856 LOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length); 857 struct stat sb; 858 int ret = fstat(fd, &sb); 859 if (ret != 0) { 860 LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 861 return UNKNOWN_ERROR; 862 } 863 864 LOGV("st_dev = %llu", sb.st_dev); 865 LOGV("st_mode = %u", sb.st_mode); 866 LOGV("st_uid = %lu", sb.st_uid); 867 LOGV("st_gid = %lu", sb.st_gid); 868 LOGV("st_size = %llu", sb.st_size); 869 870 if (offset >= sb.st_size) { 871 LOGE("offset error"); 872 ::close(fd); 873 return UNKNOWN_ERROR; 874 } 875 if (offset + length > sb.st_size) { 876 length = sb.st_size - offset; 877 LOGV("calculated length = %lld", length); 878 } 879 880 player_type playerType = getPlayerType(fd, offset, length); 881 LOGV("player type = %d", playerType); 882 883 // create the right type of player 884 sp<MediaPlayerBase> p = createPlayer(playerType); 885 if (p == NULL) return NO_INIT; 886 887 if (!p->hardwareOutput()) { 888 mAudioOutput = new AudioOutput(); 889 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 890 } 891 892 // now set data source 893 mStatus = p->setDataSource(fd, offset, length); 894 if (mStatus == NO_ERROR) mPlayer = p; 895 return mStatus; 896} 897 898status_t MediaPlayerService::Client::setVideoSurface(const sp<ISurface>& surface) 899{ 900 LOGV("[%d] setVideoSurface(%p)", mConnId, surface.get()); 901 sp<MediaPlayerBase> p = getPlayer(); 902 if (p == 0) return UNKNOWN_ERROR; 903 return p->setVideoSurface(surface); 904} 905 906status_t MediaPlayerService::Client::invoke(const Parcel& request, 907 Parcel *reply) 908{ 909 sp<MediaPlayerBase> p = getPlayer(); 910 if (p == NULL) return UNKNOWN_ERROR; 911 return p->invoke(request, reply); 912} 913 914// This call doesn't need to access the native player. 915status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 916{ 917 status_t status; 918 media::Metadata::Filter allow, drop; 919 920 if (unmarshallFilter(filter, &allow, &status) && 921 unmarshallFilter(filter, &drop, &status)) { 922 Mutex::Autolock lock(mLock); 923 924 mMetadataAllow = allow; 925 mMetadataDrop = drop; 926 } 927 return status; 928} 929 930status_t MediaPlayerService::Client::getMetadata( 931 bool update_only, bool apply_filter, Parcel *reply) 932{ 933 sp<MediaPlayerBase> player = getPlayer(); 934 if (player == 0) return UNKNOWN_ERROR; 935 936 status_t status; 937 // Placeholder for the return code, updated by the caller. 938 reply->writeInt32(-1); 939 940 media::Metadata::Filter ids; 941 942 // We don't block notifications while we fetch the data. We clear 943 // mMetadataUpdated first so we don't lose notifications happening 944 // during the rest of this call. 945 { 946 Mutex::Autolock lock(mLock); 947 if (update_only) { 948 ids = mMetadataUpdated; 949 } 950 mMetadataUpdated.clear(); 951 } 952 953 media::Metadata metadata(reply); 954 955 metadata.appendHeader(); 956 status = player->getMetadata(ids, reply); 957 958 if (status != OK) { 959 metadata.resetParcel(); 960 LOGE("getMetadata failed %d", status); 961 return status; 962 } 963 964 // FIXME: Implement filtering on the result. Not critical since 965 // filtering takes place on the update notifications already. This 966 // would be when all the metadata are fetch and a filter is set. 967 968 // Everything is fine, update the metadata length. 969 metadata.updateLength(); 970 return OK; 971} 972 973status_t MediaPlayerService::Client::suspend() { 974 sp<MediaPlayerBase> p = getPlayer(); 975 if (p == 0) return UNKNOWN_ERROR; 976 977 return p->suspend(); 978} 979 980status_t MediaPlayerService::Client::resume() { 981 sp<MediaPlayerBase> p = getPlayer(); 982 if (p == 0) return UNKNOWN_ERROR; 983 984 return p->resume(); 985} 986 987status_t MediaPlayerService::Client::prepareAsync() 988{ 989 LOGV("[%d] prepareAsync", mConnId); 990 sp<MediaPlayerBase> p = getPlayer(); 991 if (p == 0) return UNKNOWN_ERROR; 992 status_t ret = p->prepareAsync(); 993#if CALLBACK_ANTAGONIZER 994 LOGD("start Antagonizer"); 995 if (ret == NO_ERROR) mAntagonizer->start(); 996#endif 997 return ret; 998} 999 1000status_t MediaPlayerService::Client::start() 1001{ 1002 LOGV("[%d] start", mConnId); 1003 sp<MediaPlayerBase> p = getPlayer(); 1004 if (p == 0) return UNKNOWN_ERROR; 1005 p->setLooping(mLoop); 1006 return p->start(); 1007} 1008 1009status_t MediaPlayerService::Client::stop() 1010{ 1011 LOGV("[%d] stop", mConnId); 1012 sp<MediaPlayerBase> p = getPlayer(); 1013 if (p == 0) return UNKNOWN_ERROR; 1014 return p->stop(); 1015} 1016 1017status_t MediaPlayerService::Client::pause() 1018{ 1019 LOGV("[%d] pause", mConnId); 1020 sp<MediaPlayerBase> p = getPlayer(); 1021 if (p == 0) return UNKNOWN_ERROR; 1022 return p->pause(); 1023} 1024 1025status_t MediaPlayerService::Client::isPlaying(bool* state) 1026{ 1027 *state = false; 1028 sp<MediaPlayerBase> p = getPlayer(); 1029 if (p == 0) return UNKNOWN_ERROR; 1030 *state = p->isPlaying(); 1031 LOGV("[%d] isPlaying: %d", mConnId, *state); 1032 return NO_ERROR; 1033} 1034 1035status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 1036{ 1037 LOGV("getCurrentPosition"); 1038 sp<MediaPlayerBase> p = getPlayer(); 1039 if (p == 0) return UNKNOWN_ERROR; 1040 status_t ret = p->getCurrentPosition(msec); 1041 if (ret == NO_ERROR) { 1042 LOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 1043 } else { 1044 LOGE("getCurrentPosition returned %d", ret); 1045 } 1046 return ret; 1047} 1048 1049status_t MediaPlayerService::Client::getDuration(int *msec) 1050{ 1051 LOGV("getDuration"); 1052 sp<MediaPlayerBase> p = getPlayer(); 1053 if (p == 0) return UNKNOWN_ERROR; 1054 status_t ret = p->getDuration(msec); 1055 if (ret == NO_ERROR) { 1056 LOGV("[%d] getDuration = %d", mConnId, *msec); 1057 } else { 1058 LOGE("getDuration returned %d", ret); 1059 } 1060 return ret; 1061} 1062 1063status_t MediaPlayerService::Client::seekTo(int msec) 1064{ 1065 LOGV("[%d] seekTo(%d)", mConnId, msec); 1066 sp<MediaPlayerBase> p = getPlayer(); 1067 if (p == 0) return UNKNOWN_ERROR; 1068 return p->seekTo(msec); 1069} 1070 1071status_t MediaPlayerService::Client::reset() 1072{ 1073 LOGV("[%d] reset", mConnId); 1074 sp<MediaPlayerBase> p = getPlayer(); 1075 if (p == 0) return UNKNOWN_ERROR; 1076 return p->reset(); 1077} 1078 1079status_t MediaPlayerService::Client::setAudioStreamType(int type) 1080{ 1081 LOGV("[%d] setAudioStreamType(%d)", mConnId, type); 1082 // TODO: for hardware output, call player instead 1083 Mutex::Autolock l(mLock); 1084 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 1085 return NO_ERROR; 1086} 1087 1088status_t MediaPlayerService::Client::setLooping(int loop) 1089{ 1090 LOGV("[%d] setLooping(%d)", mConnId, loop); 1091 mLoop = loop; 1092 sp<MediaPlayerBase> p = getPlayer(); 1093 if (p != 0) return p->setLooping(loop); 1094 return NO_ERROR; 1095} 1096 1097status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1098{ 1099 LOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1100 // TODO: for hardware output, call player instead 1101 Mutex::Autolock l(mLock); 1102 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1103 return NO_ERROR; 1104} 1105 1106 1107void MediaPlayerService::Client::notify(void* cookie, int msg, int ext1, int ext2) 1108{ 1109 Client* client = static_cast<Client*>(cookie); 1110 1111 if (MEDIA_INFO == msg && 1112 MEDIA_INFO_METADATA_UPDATE == ext1) { 1113 const media::Metadata::Type metadata_type = ext2; 1114 1115 if(client->shouldDropMetadata(metadata_type)) { 1116 return; 1117 } 1118 1119 // Update the list of metadata that have changed. getMetadata 1120 // also access mMetadataUpdated and clears it. 1121 client->addNewMetadataUpdate(metadata_type); 1122 } 1123 LOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1124 client->mClient->notify(msg, ext1, ext2); 1125} 1126 1127 1128bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1129{ 1130 Mutex::Autolock lock(mLock); 1131 1132 if (findMetadata(mMetadataDrop, code)) { 1133 return true; 1134 } 1135 1136 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1137 return false; 1138 } else { 1139 return true; 1140 } 1141} 1142 1143 1144void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1145 Mutex::Autolock lock(mLock); 1146 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1147 mMetadataUpdated.add(metadata_type); 1148 } 1149} 1150 1151#if CALLBACK_ANTAGONIZER 1152const int Antagonizer::interval = 10000; // 10 msecs 1153 1154Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1155 mExit(false), mActive(false), mClient(client), mCb(cb) 1156{ 1157 createThread(callbackThread, this); 1158} 1159 1160void Antagonizer::kill() 1161{ 1162 Mutex::Autolock _l(mLock); 1163 mActive = false; 1164 mExit = true; 1165 mCondition.wait(mLock); 1166} 1167 1168int Antagonizer::callbackThread(void* user) 1169{ 1170 LOGD("Antagonizer started"); 1171 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1172 while (!p->mExit) { 1173 if (p->mActive) { 1174 LOGV("send event"); 1175 p->mCb(p->mClient, 0, 0, 0); 1176 } 1177 usleep(interval); 1178 } 1179 Mutex::Autolock _l(p->mLock); 1180 p->mCondition.signal(); 1181 LOGD("Antagonizer stopped"); 1182 return 0; 1183} 1184#endif 1185 1186static size_t kDefaultHeapSize = 1024 * 1024; // 1MB 1187 1188sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 1189{ 1190 LOGV("decode(%s)", url); 1191 sp<MemoryBase> mem; 1192 sp<MediaPlayerBase> player; 1193 1194 // Protect our precious, precious DRMd ringtones by only allowing 1195 // decoding of http, but not filesystem paths or content Uris. 1196 // If the application wants to decode those, it should open a 1197 // filedescriptor for them and use that. 1198 if (url != NULL && strncmp(url, "http://", 7) != 0) { 1199 LOGD("Can't decode %s by path, use filedescriptor instead", url); 1200 return mem; 1201 } 1202 1203 player_type playerType = getPlayerType(url); 1204 LOGV("player type = %d", playerType); 1205 1206 // create the right type of player 1207 sp<AudioCache> cache = new AudioCache(url); 1208 player = android::createPlayer(playerType, cache.get(), cache->notify); 1209 if (player == NULL) goto Exit; 1210 if (player->hardwareOutput()) goto Exit; 1211 1212 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1213 1214 // set data source 1215 if (player->setDataSource(url) != NO_ERROR) goto Exit; 1216 1217 LOGV("prepare"); 1218 player->prepareAsync(); 1219 1220 LOGV("wait for prepare"); 1221 if (cache->wait() != NO_ERROR) goto Exit; 1222 1223 LOGV("start"); 1224 player->start(); 1225 1226 LOGV("wait for playback complete"); 1227 if (cache->wait() != NO_ERROR) goto Exit; 1228 1229 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1230 *pSampleRate = cache->sampleRate(); 1231 *pNumChannels = cache->channelCount(); 1232 *pFormat = cache->format(); 1233 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1234 1235Exit: 1236 if (player != 0) player->reset(); 1237 return mem; 1238} 1239 1240sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 1241{ 1242 LOGV("decode(%d, %lld, %lld)", fd, offset, length); 1243 sp<MemoryBase> mem; 1244 sp<MediaPlayerBase> player; 1245 1246 player_type playerType = getPlayerType(fd, offset, length); 1247 LOGV("player type = %d", playerType); 1248 1249 // create the right type of player 1250 sp<AudioCache> cache = new AudioCache("decode_fd"); 1251 player = android::createPlayer(playerType, cache.get(), cache->notify); 1252 if (player == NULL) goto Exit; 1253 if (player->hardwareOutput()) goto Exit; 1254 1255 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1256 1257 // set data source 1258 if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit; 1259 1260 LOGV("prepare"); 1261 player->prepareAsync(); 1262 1263 LOGV("wait for prepare"); 1264 if (cache->wait() != NO_ERROR) goto Exit; 1265 1266 LOGV("start"); 1267 player->start(); 1268 1269 LOGV("wait for playback complete"); 1270 if (cache->wait() != NO_ERROR) goto Exit; 1271 1272 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1273 *pSampleRate = cache->sampleRate(); 1274 *pNumChannels = cache->channelCount(); 1275 *pFormat = cache->format(); 1276 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1277 1278Exit: 1279 if (player != 0) player->reset(); 1280 ::close(fd); 1281 return mem; 1282} 1283 1284/* 1285 * Avert your eyes, ugly hack ahead. 1286 * The following is to support music visualizations. 1287 */ 1288 1289static const int NUMVIZBUF = 32; 1290static const int VIZBUFFRAMES = 1024; 1291static const int BUFTIMEMSEC = NUMVIZBUF * VIZBUFFRAMES * 1000 / 44100; 1292static const int TOTALBUFTIMEMSEC = NUMVIZBUF * BUFTIMEMSEC; 1293 1294static bool gotMem = false; 1295static sp<MemoryHeapBase> heap; 1296static sp<MemoryBase> mem[NUMVIZBUF]; 1297static uint64_t endTime; 1298static uint64_t lastReadTime; 1299static uint64_t lastWriteTime; 1300static int writeIdx = 0; 1301 1302static void allocVizBufs() { 1303 if (!gotMem) { 1304 heap = new MemoryHeapBase(NUMVIZBUF * VIZBUFFRAMES * 2, 0, "snooper"); 1305 for (int i=0;i<NUMVIZBUF;i++) { 1306 mem[i] = new MemoryBase(heap, VIZBUFFRAMES * 2 * i, VIZBUFFRAMES * 2); 1307 } 1308 endTime = 0; 1309 gotMem = true; 1310 } 1311} 1312 1313 1314/* 1315 * Get a buffer of audio data that is about to be played. 1316 * We don't synchronize this because in practice the writer 1317 * is ahead of the reader, and even if we did happen to catch 1318 * a buffer while it's being written, it's just a visualization, 1319 * so no harm done. 1320 */ 1321static sp<MemoryBase> getVizBuffer() { 1322 1323 allocVizBufs(); 1324 1325 lastReadTime = uptimeMillis(); 1326 1327 // if there is no recent buffer (yet), just return empty handed 1328 if (lastWriteTime + TOTALBUFTIMEMSEC < lastReadTime) { 1329 //LOGI("@@@@ no audio data to look at yet: %d + %d < %d", (int)lastWriteTime, TOTALBUFTIMEMSEC, (int)lastReadTime); 1330 return NULL; 1331 } 1332 1333 int timedelta = endTime - lastReadTime; 1334 if (timedelta < 0) timedelta = 0; 1335 int framedelta = timedelta * 44100 / 1000; 1336 int headIdx = (writeIdx - framedelta) / VIZBUFFRAMES - 1; 1337 while (headIdx < 0) { 1338 headIdx += NUMVIZBUF; 1339 } 1340 return mem[headIdx]; 1341} 1342 1343// Append the data to the vizualization buffer 1344static void makeVizBuffers(const char *data, int len, uint64_t time) { 1345 1346 allocVizBufs(); 1347 1348 uint64_t startTime = time; 1349 const int frameSize = 4; // 16 bit stereo sample is 4 bytes 1350 int offset = writeIdx; 1351 int maxoff = heap->getSize() / 2; // in shorts 1352 short *base = (short*)heap->getBase(); 1353 short *src = (short*)data; 1354 while (len > 0) { 1355 1356 // Degrade quality by mixing to mono and clearing the lowest 3 bits. 1357 // This should still be good enough for a visualization 1358 base[offset++] = ((int(src[0]) + int(src[1])) >> 1) & ~0x7; 1359 src += 2; 1360 len -= frameSize; 1361 if (offset >= maxoff) { 1362 offset = 0; 1363 } 1364 } 1365 writeIdx = offset; 1366 endTime = time + (len / frameSize) / 44; 1367 //LOGI("@@@ stored buffers from %d to %d", uint32_t(startTime), uint32_t(time)); 1368} 1369 1370sp<IMemory> MediaPlayerService::snoop() 1371{ 1372 sp<MemoryBase> mem = getVizBuffer(); 1373 return mem; 1374} 1375 1376 1377#undef LOG_TAG 1378#define LOG_TAG "AudioSink" 1379MediaPlayerService::AudioOutput::AudioOutput() 1380 : mCallback(NULL), 1381 mCallbackCookie(NULL) { 1382 mTrack = 0; 1383 mStreamType = AudioSystem::MUSIC; 1384 mLeftVolume = 1.0; 1385 mRightVolume = 1.0; 1386 mLatency = 0; 1387 mMsecsPerFrame = 0; 1388 mNumFramesWritten = 0; 1389 setMinBufferCount(); 1390} 1391 1392MediaPlayerService::AudioOutput::~AudioOutput() 1393{ 1394 close(); 1395} 1396 1397void MediaPlayerService::AudioOutput::setMinBufferCount() 1398{ 1399 char value[PROPERTY_VALUE_MAX]; 1400 if (property_get("ro.kernel.qemu", value, 0)) { 1401 mIsOnEmulator = true; 1402 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1403 } 1404} 1405 1406bool MediaPlayerService::AudioOutput::isOnEmulator() 1407{ 1408 setMinBufferCount(); 1409 return mIsOnEmulator; 1410} 1411 1412int MediaPlayerService::AudioOutput::getMinBufferCount() 1413{ 1414 setMinBufferCount(); 1415 return mMinBufferCount; 1416} 1417 1418ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1419{ 1420 if (mTrack == 0) return NO_INIT; 1421 return mTrack->frameCount() * frameSize(); 1422} 1423 1424ssize_t MediaPlayerService::AudioOutput::frameCount() const 1425{ 1426 if (mTrack == 0) return NO_INIT; 1427 return mTrack->frameCount(); 1428} 1429 1430ssize_t MediaPlayerService::AudioOutput::channelCount() const 1431{ 1432 if (mTrack == 0) return NO_INIT; 1433 return mTrack->channelCount(); 1434} 1435 1436ssize_t MediaPlayerService::AudioOutput::frameSize() const 1437{ 1438 if (mTrack == 0) return NO_INIT; 1439 return mTrack->frameSize(); 1440} 1441 1442uint32_t MediaPlayerService::AudioOutput::latency () const 1443{ 1444 return mLatency; 1445} 1446 1447float MediaPlayerService::AudioOutput::msecsPerFrame() const 1448{ 1449 return mMsecsPerFrame; 1450} 1451 1452status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) 1453{ 1454 if (mTrack == 0) return NO_INIT; 1455 return mTrack->getPosition(position); 1456} 1457 1458status_t MediaPlayerService::AudioOutput::open( 1459 uint32_t sampleRate, int channelCount, int format, int bufferCount, 1460 AudioCallback cb, void *cookie) 1461{ 1462 mCallback = cb; 1463 mCallbackCookie = cookie; 1464 1465 // Check argument "bufferCount" against the mininum buffer count 1466 if (bufferCount < mMinBufferCount) { 1467 LOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount); 1468 bufferCount = mMinBufferCount; 1469 1470 } 1471 LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount); 1472 if (mTrack) close(); 1473 int afSampleRate; 1474 int afFrameCount; 1475 int frameCount; 1476 1477 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1478 return NO_INIT; 1479 } 1480 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1481 return NO_INIT; 1482 } 1483 1484 frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate; 1485 1486 AudioTrack *t; 1487 if (mCallback != NULL) { 1488 t = new AudioTrack( 1489 mStreamType, 1490 sampleRate, 1491 format, 1492 (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO, 1493 frameCount, 1494 0 /* flags */, 1495 CallbackWrapper, 1496 this); 1497 } else { 1498 t = new AudioTrack( 1499 mStreamType, 1500 sampleRate, 1501 format, 1502 (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO, 1503 frameCount); 1504 } 1505 1506 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1507 LOGE("Unable to create audio track"); 1508 delete t; 1509 return NO_INIT; 1510 } 1511 1512 LOGV("setVolume"); 1513 t->setVolume(mLeftVolume, mRightVolume); 1514 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1515 mLatency = t->latency(); 1516 mTrack = t; 1517 return NO_ERROR; 1518} 1519 1520void MediaPlayerService::AudioOutput::start() 1521{ 1522 LOGV("start"); 1523 if (mTrack) { 1524 mTrack->setVolume(mLeftVolume, mRightVolume); 1525 mTrack->start(); 1526 mTrack->getPosition(&mNumFramesWritten); 1527 } 1528} 1529 1530void MediaPlayerService::AudioOutput::snoopWrite(const void* buffer, size_t size) { 1531 // Only make visualization buffers if anyone recently requested visualization data 1532 uint64_t now = uptimeMillis(); 1533 if (lastReadTime + TOTALBUFTIMEMSEC >= now) { 1534 // Based on the current play counter, the number of frames written and 1535 // the current real time we can calculate the approximate real start 1536 // time of the buffer we're about to write. 1537 uint32_t pos; 1538 mTrack->getPosition(&pos); 1539 1540 // we're writing ahead by this many frames: 1541 int ahead = mNumFramesWritten - pos; 1542 //LOGI("@@@ written: %d, playpos: %d, latency: %d", mNumFramesWritten, pos, mTrack->latency()); 1543 // which is this many milliseconds, assuming 44100 Hz: 1544 ahead /= 44; 1545 1546 makeVizBuffers((const char*)buffer, size, now + ahead + mTrack->latency()); 1547 lastWriteTime = now; 1548 } 1549} 1550 1551 1552ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size) 1553{ 1554 LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 1555 1556 //LOGV("write(%p, %u)", buffer, size); 1557 if (mTrack) { 1558 snoopWrite(buffer, size); 1559 ssize_t ret = mTrack->write(buffer, size); 1560 mNumFramesWritten += ret / 4; // assume 16 bit stereo 1561 return ret; 1562 } 1563 return NO_INIT; 1564} 1565 1566void MediaPlayerService::AudioOutput::stop() 1567{ 1568 LOGV("stop"); 1569 if (mTrack) mTrack->stop(); 1570 lastWriteTime = 0; 1571} 1572 1573void MediaPlayerService::AudioOutput::flush() 1574{ 1575 LOGV("flush"); 1576 if (mTrack) mTrack->flush(); 1577} 1578 1579void MediaPlayerService::AudioOutput::pause() 1580{ 1581 LOGV("pause"); 1582 if (mTrack) mTrack->pause(); 1583 lastWriteTime = 0; 1584} 1585 1586void MediaPlayerService::AudioOutput::close() 1587{ 1588 LOGV("close"); 1589 delete mTrack; 1590 mTrack = 0; 1591} 1592 1593void MediaPlayerService::AudioOutput::setVolume(float left, float right) 1594{ 1595 LOGV("setVolume(%f, %f)", left, right); 1596 mLeftVolume = left; 1597 mRightVolume = right; 1598 if (mTrack) { 1599 mTrack->setVolume(left, right); 1600 } 1601} 1602 1603// static 1604void MediaPlayerService::AudioOutput::CallbackWrapper( 1605 int event, void *cookie, void *info) { 1606 //LOGV("callbackwrapper"); 1607 if (event != AudioTrack::EVENT_MORE_DATA) { 1608 return; 1609 } 1610 1611 AudioOutput *me = (AudioOutput *)cookie; 1612 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 1613 1614 size_t actualSize = (*me->mCallback)( 1615 me, buffer->raw, buffer->size, me->mCallbackCookie); 1616 1617 if (actualSize > 0) { 1618 me->snoopWrite(buffer->raw, actualSize); 1619 } 1620} 1621 1622#undef LOG_TAG 1623#define LOG_TAG "AudioCache" 1624MediaPlayerService::AudioCache::AudioCache(const char* name) : 1625 mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0), 1626 mError(NO_ERROR), mCommandComplete(false) 1627{ 1628 // create ashmem heap 1629 mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name); 1630} 1631 1632uint32_t MediaPlayerService::AudioCache::latency () const 1633{ 1634 return 0; 1635} 1636 1637float MediaPlayerService::AudioCache::msecsPerFrame() const 1638{ 1639 return mMsecsPerFrame; 1640} 1641 1642status_t MediaPlayerService::AudioCache::getPosition(uint32_t *position) 1643{ 1644 if (position == 0) return BAD_VALUE; 1645 *position = mSize; 1646 return NO_ERROR; 1647} 1648 1649//////////////////////////////////////////////////////////////////////////////// 1650 1651struct CallbackThread : public Thread { 1652 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 1653 MediaPlayerBase::AudioSink::AudioCallback cb, 1654 void *cookie); 1655 1656protected: 1657 virtual ~CallbackThread(); 1658 1659 virtual bool threadLoop(); 1660 1661private: 1662 wp<MediaPlayerBase::AudioSink> mSink; 1663 MediaPlayerBase::AudioSink::AudioCallback mCallback; 1664 void *mCookie; 1665 void *mBuffer; 1666 size_t mBufferSize; 1667 1668 CallbackThread(const CallbackThread &); 1669 CallbackThread &operator=(const CallbackThread &); 1670}; 1671 1672CallbackThread::CallbackThread( 1673 const wp<MediaPlayerBase::AudioSink> &sink, 1674 MediaPlayerBase::AudioSink::AudioCallback cb, 1675 void *cookie) 1676 : mSink(sink), 1677 mCallback(cb), 1678 mCookie(cookie), 1679 mBuffer(NULL), 1680 mBufferSize(0) { 1681} 1682 1683CallbackThread::~CallbackThread() { 1684 if (mBuffer) { 1685 free(mBuffer); 1686 mBuffer = NULL; 1687 } 1688} 1689 1690bool CallbackThread::threadLoop() { 1691 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 1692 if (sink == NULL) { 1693 return false; 1694 } 1695 1696 if (mBuffer == NULL) { 1697 mBufferSize = sink->bufferSize(); 1698 mBuffer = malloc(mBufferSize); 1699 } 1700 1701 size_t actualSize = 1702 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie); 1703 1704 if (actualSize > 0) { 1705 sink->write(mBuffer, actualSize); 1706 } 1707 1708 return true; 1709} 1710 1711//////////////////////////////////////////////////////////////////////////////// 1712 1713status_t MediaPlayerService::AudioCache::open( 1714 uint32_t sampleRate, int channelCount, int format, int bufferCount, 1715 AudioCallback cb, void *cookie) 1716{ 1717 LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount); 1718 if (mHeap->getHeapID() < 0) { 1719 return NO_INIT; 1720 } 1721 1722 mSampleRate = sampleRate; 1723 mChannelCount = (uint16_t)channelCount; 1724 mFormat = (uint16_t)format; 1725 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1726 1727 if (cb != NULL) { 1728 mCallbackThread = new CallbackThread(this, cb, cookie); 1729 } 1730 return NO_ERROR; 1731} 1732 1733void MediaPlayerService::AudioCache::start() { 1734 if (mCallbackThread != NULL) { 1735 mCallbackThread->run("AudioCache callback"); 1736 } 1737} 1738 1739void MediaPlayerService::AudioCache::stop() { 1740 if (mCallbackThread != NULL) { 1741 mCallbackThread->requestExitAndWait(); 1742 } 1743} 1744 1745ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size) 1746{ 1747 LOGV("write(%p, %u)", buffer, size); 1748 if ((buffer == 0) || (size == 0)) return size; 1749 1750 uint8_t* p = static_cast<uint8_t*>(mHeap->getBase()); 1751 if (p == NULL) return NO_INIT; 1752 p += mSize; 1753 LOGV("memcpy(%p, %p, %u)", p, buffer, size); 1754 if (mSize + size > mHeap->getSize()) { 1755 LOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize()); 1756 size = mHeap->getSize() - mSize; 1757 } 1758 memcpy(p, buffer, size); 1759 mSize += size; 1760 return size; 1761} 1762 1763// call with lock held 1764status_t MediaPlayerService::AudioCache::wait() 1765{ 1766 Mutex::Autolock lock(mLock); 1767 if (!mCommandComplete) { 1768 mSignal.wait(mLock); 1769 } 1770 mCommandComplete = false; 1771 1772 if (mError == NO_ERROR) { 1773 LOGV("wait - success"); 1774 } else { 1775 LOGV("wait - error"); 1776 } 1777 return mError; 1778} 1779 1780void MediaPlayerService::AudioCache::notify(void* cookie, int msg, int ext1, int ext2) 1781{ 1782 LOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2); 1783 AudioCache* p = static_cast<AudioCache*>(cookie); 1784 1785 // ignore buffering messages 1786 switch (msg) 1787 { 1788 case MEDIA_ERROR: 1789 LOGE("Error %d, %d occurred", ext1, ext2); 1790 p->mError = ext1; 1791 break; 1792 case MEDIA_PREPARED: 1793 LOGV("prepared"); 1794 break; 1795 case MEDIA_PLAYBACK_COMPLETE: 1796 LOGV("playback complete"); 1797 break; 1798 default: 1799 LOGV("ignored"); 1800 return; 1801 } 1802 1803 // wake up thread 1804 p->mCommandComplete = true; 1805 p->mSignal.signal(); 1806} 1807 1808} // namespace android 1809