MediaPlayerService.cpp revision 2eeadf9ded4b5770a713496e9887d668889987bc
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, " /mnt/sdcard/") || 538 strstr(buffer, " /system/sounds/") || 539 strstr(buffer, " /data/") || 540 strstr(buffer, " /system/media/")) { 541 result.append(" "); 542 result.append(buffer); 543 } 544 } 545 fclose(f); 546 } else { 547 result.append("couldn't open "); 548 result.append(buffer); 549 result.append("\n"); 550 } 551 552 snprintf(buffer, SIZE, "/proc/%d/fd", myTid()); 553 DIR *d = opendir(buffer); 554 if (d) { 555 struct dirent *ent; 556 while((ent = readdir(d)) != NULL) { 557 if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) { 558 snprintf(buffer, SIZE, "/proc/%d/fd/%s", myTid(), ent->d_name); 559 struct stat s; 560 if (lstat(buffer, &s) == 0) { 561 if ((s.st_mode & S_IFMT) == S_IFLNK) { 562 char linkto[256]; 563 int len = readlink(buffer, linkto, sizeof(linkto)); 564 if(len > 0) { 565 if(len > 255) { 566 linkto[252] = '.'; 567 linkto[253] = '.'; 568 linkto[254] = '.'; 569 linkto[255] = 0; 570 } else { 571 linkto[len] = 0; 572 } 573 if (strstr(linkto, "/mnt/sdcard/") == linkto || 574 strstr(linkto, "/system/sounds/") == linkto || 575 strstr(linkto, "/data/") == linkto || 576 strstr(linkto, "/system/media/") == linkto) { 577 result.append(" "); 578 result.append(buffer); 579 result.append(" -> "); 580 result.append(linkto); 581 result.append("\n"); 582 } 583 } 584 } else { 585 result.append(" unexpected type for "); 586 result.append(buffer); 587 result.append("\n"); 588 } 589 } 590 } 591 } 592 closedir(d); 593 } else { 594 result.append("couldn't open "); 595 result.append(buffer); 596 result.append("\n"); 597 } 598 599#if defined(__arm__) 600 bool dumpMem = false; 601 for (size_t i = 0; i < args.size(); i++) { 602 if (args[i] == String16("-m")) { 603 dumpMem = true; 604 } 605 } 606 if (dumpMem) { 607 memStatus(fd, args); 608 } 609#endif 610 } 611 write(fd, result.string(), result.size()); 612 return NO_ERROR; 613} 614 615void MediaPlayerService::removeClient(wp<Client> client) 616{ 617 Mutex::Autolock lock(mLock); 618 mClients.remove(client); 619} 620 621MediaPlayerService::Client::Client(const sp<MediaPlayerService>& service, pid_t pid, 622 int32_t connId, const sp<IMediaPlayerClient>& client, int audioSessionId) 623{ 624 LOGV("Client(%d) constructor", connId); 625 mPid = pid; 626 mConnId = connId; 627 mService = service; 628 mClient = client; 629 mLoop = false; 630 mStatus = NO_INIT; 631 mAudioSessionId = audioSessionId; 632 633#if CALLBACK_ANTAGONIZER 634 LOGD("create Antagonizer"); 635 mAntagonizer = new Antagonizer(notify, this); 636#endif 637} 638 639MediaPlayerService::Client::~Client() 640{ 641 LOGV("Client(%d) destructor pid = %d", mConnId, mPid); 642 mAudioOutput.clear(); 643 wp<Client> client(this); 644 disconnect(); 645 mService->removeClient(client); 646} 647 648void MediaPlayerService::Client::disconnect() 649{ 650 LOGV("disconnect(%d) from pid %d", mConnId, mPid); 651 // grab local reference and clear main reference to prevent future 652 // access to object 653 sp<MediaPlayerBase> p; 654 { 655 Mutex::Autolock l(mLock); 656 p = mPlayer; 657 } 658 mClient.clear(); 659 660 mPlayer.clear(); 661 662 // clear the notification to prevent callbacks to dead client 663 // and reset the player. We assume the player will serialize 664 // access to itself if necessary. 665 if (p != 0) { 666 p->setNotifyCallback(0, 0); 667#if CALLBACK_ANTAGONIZER 668 LOGD("kill Antagonizer"); 669 mAntagonizer->kill(); 670#endif 671 p->reset(); 672 } 673 674 IPCThreadState::self()->flushCommands(); 675} 676 677static player_type getDefaultPlayerType() { 678 return STAGEFRIGHT_PLAYER; 679} 680 681player_type getPlayerType(int fd, int64_t offset, int64_t length) 682{ 683 char buf[20]; 684 lseek(fd, offset, SEEK_SET); 685 read(fd, buf, sizeof(buf)); 686 lseek(fd, offset, SEEK_SET); 687 688 long ident = *((long*)buf); 689 690 // Ogg vorbis? 691 if (ident == 0x5367674f) // 'OggS' 692 return STAGEFRIGHT_PLAYER; 693 694#ifndef NO_OPENCORE 695 if (ident == 0x75b22630) { 696 // The magic number for .asf files, i.e. wmv and wma content. 697 // These are not currently supported through stagefright. 698 return PV_PLAYER; 699 } 700#endif 701 702 // Some kind of MIDI? 703 EAS_DATA_HANDLE easdata; 704 if (EAS_Init(&easdata) == EAS_SUCCESS) { 705 EAS_FILE locator; 706 locator.path = NULL; 707 locator.fd = fd; 708 locator.offset = offset; 709 locator.length = length; 710 EAS_HANDLE eashandle; 711 if (EAS_OpenFile(easdata, &locator, &eashandle) == EAS_SUCCESS) { 712 EAS_CloseFile(easdata, eashandle); 713 EAS_Shutdown(easdata); 714 return SONIVOX_PLAYER; 715 } 716 EAS_Shutdown(easdata); 717 } 718 719 return getDefaultPlayerType(); 720} 721 722player_type getPlayerType(const char* url) 723{ 724 if (TestPlayerStub::canBeUsed(url)) { 725 return TEST_PLAYER; 726 } 727 728 // use MidiFile for MIDI extensions 729 int lenURL = strlen(url); 730 for (int i = 0; i < NELEM(FILE_EXTS); ++i) { 731 int len = strlen(FILE_EXTS[i].extension); 732 int start = lenURL - len; 733 if (start > 0) { 734 if (!strncasecmp(url + start, FILE_EXTS[i].extension, len)) { 735 return FILE_EXTS[i].playertype; 736 } 737 } 738 } 739 740 if (!strncasecmp(url, "rtsp://", 7)) { 741 char value[PROPERTY_VALUE_MAX]; 742 if (property_get("media.stagefright.enable-rtsp", value, NULL) 743 && (strcmp(value, "1") && strcasecmp(value, "true"))) { 744 // For now, we're going to use PV for rtsp-based playback 745 // by default until we can clear up a few more issues. 746 return PV_PLAYER; 747 } 748 } 749 750 return getDefaultPlayerType(); 751} 752 753static sp<MediaPlayerBase> createPlayer(player_type playerType, void* cookie, 754 notify_callback_f notifyFunc) 755{ 756 sp<MediaPlayerBase> p; 757 switch (playerType) { 758#ifndef NO_OPENCORE 759 case PV_PLAYER: 760 LOGV(" create PVPlayer"); 761 p = new PVPlayer(); 762 break; 763#endif 764 case SONIVOX_PLAYER: 765 LOGV(" create MidiFile"); 766 p = new MidiFile(); 767 break; 768 case STAGEFRIGHT_PLAYER: 769 LOGV(" create StagefrightPlayer"); 770 p = new StagefrightPlayer; 771 break; 772 case TEST_PLAYER: 773 LOGV("Create Test Player stub"); 774 p = new TestPlayerStub(); 775 break; 776 } 777 if (p != NULL) { 778 if (p->initCheck() == NO_ERROR) { 779 p->setNotifyCallback(cookie, notifyFunc); 780 } else { 781 p.clear(); 782 } 783 } 784 if (p == NULL) { 785 LOGE("Failed to create player object"); 786 } 787 return p; 788} 789 790sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) 791{ 792 // determine if we have the right player type 793 sp<MediaPlayerBase> p = mPlayer; 794 if ((p != NULL) && (p->playerType() != playerType)) { 795 LOGV("delete player"); 796 p.clear(); 797 } 798 if (p == NULL) { 799 p = android::createPlayer(playerType, this, notify); 800 } 801 return p; 802} 803 804status_t MediaPlayerService::Client::setDataSource( 805 const char *url, const KeyedVector<String8, String8> *headers) 806{ 807 LOGV("setDataSource(%s)", url); 808 if (url == NULL) 809 return UNKNOWN_ERROR; 810 811 if (strncmp(url, "content://", 10) == 0) { 812 // get a filedescriptor for the content Uri and 813 // pass it to the setDataSource(fd) method 814 815 String16 url16(url); 816 int fd = android::openContentProviderFile(url16); 817 if (fd < 0) 818 { 819 LOGE("Couldn't open fd for %s", url); 820 return UNKNOWN_ERROR; 821 } 822 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 823 close(fd); 824 return mStatus; 825 } else { 826 player_type playerType = getPlayerType(url); 827 LOGV("player type = %d", playerType); 828 829 // create the right type of player 830 sp<MediaPlayerBase> p = createPlayer(playerType); 831 if (p == NULL) return NO_INIT; 832 833 if (!p->hardwareOutput()) { 834 mAudioOutput = new AudioOutput(mAudioSessionId); 835 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 836 } 837 838 // now set data source 839 LOGV(" setDataSource"); 840 mStatus = p->setDataSource(url, headers); 841 if (mStatus == NO_ERROR) { 842 mPlayer = p; 843 } else { 844 LOGE(" error: %d", mStatus); 845 } 846 return mStatus; 847 } 848} 849 850status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 851{ 852 LOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length); 853 struct stat sb; 854 int ret = fstat(fd, &sb); 855 if (ret != 0) { 856 LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 857 return UNKNOWN_ERROR; 858 } 859 860 LOGV("st_dev = %llu", sb.st_dev); 861 LOGV("st_mode = %u", sb.st_mode); 862 LOGV("st_uid = %lu", sb.st_uid); 863 LOGV("st_gid = %lu", sb.st_gid); 864 LOGV("st_size = %llu", sb.st_size); 865 866 if (offset >= sb.st_size) { 867 LOGE("offset error"); 868 ::close(fd); 869 return UNKNOWN_ERROR; 870 } 871 if (offset + length > sb.st_size) { 872 length = sb.st_size - offset; 873 LOGV("calculated length = %lld", length); 874 } 875 876 player_type playerType = getPlayerType(fd, offset, length); 877 LOGV("player type = %d", playerType); 878 879 // create the right type of player 880 sp<MediaPlayerBase> p = createPlayer(playerType); 881 if (p == NULL) return NO_INIT; 882 883 if (!p->hardwareOutput()) { 884 mAudioOutput = new AudioOutput(mAudioSessionId); 885 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 886 } 887 888 // now set data source 889 mStatus = p->setDataSource(fd, offset, length); 890 if (mStatus == NO_ERROR) mPlayer = p; 891 return mStatus; 892} 893 894status_t MediaPlayerService::Client::setVideoISurface(const sp<ISurface>& surface) 895{ 896 LOGV("[%d] setVideoISurface(%p)", mConnId, surface.get()); 897 sp<MediaPlayerBase> p = getPlayer(); 898 if (p == 0) return UNKNOWN_ERROR; 899 return p->setVideoISurface(surface); 900} 901 902status_t MediaPlayerService::Client::setVideoSurface(const sp<Surface>& surface) 903{ 904 LOGV("[%d] setVideoSurface(%p)", mConnId, surface.get()); 905 sp<MediaPlayerBase> p = getPlayer(); 906 if (p == 0) return UNKNOWN_ERROR; 907 return p->setVideoSurface(surface); 908} 909 910status_t MediaPlayerService::Client::invoke(const Parcel& request, 911 Parcel *reply) 912{ 913 sp<MediaPlayerBase> p = getPlayer(); 914 if (p == NULL) return UNKNOWN_ERROR; 915 return p->invoke(request, reply); 916} 917 918// This call doesn't need to access the native player. 919status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 920{ 921 status_t status; 922 media::Metadata::Filter allow, drop; 923 924 if (unmarshallFilter(filter, &allow, &status) && 925 unmarshallFilter(filter, &drop, &status)) { 926 Mutex::Autolock lock(mLock); 927 928 mMetadataAllow = allow; 929 mMetadataDrop = drop; 930 } 931 return status; 932} 933 934status_t MediaPlayerService::Client::getMetadata( 935 bool update_only, bool apply_filter, Parcel *reply) 936{ 937 sp<MediaPlayerBase> player = getPlayer(); 938 if (player == 0) return UNKNOWN_ERROR; 939 940 status_t status; 941 // Placeholder for the return code, updated by the caller. 942 reply->writeInt32(-1); 943 944 media::Metadata::Filter ids; 945 946 // We don't block notifications while we fetch the data. We clear 947 // mMetadataUpdated first so we don't lose notifications happening 948 // during the rest of this call. 949 { 950 Mutex::Autolock lock(mLock); 951 if (update_only) { 952 ids = mMetadataUpdated; 953 } 954 mMetadataUpdated.clear(); 955 } 956 957 media::Metadata metadata(reply); 958 959 metadata.appendHeader(); 960 status = player->getMetadata(ids, reply); 961 962 if (status != OK) { 963 metadata.resetParcel(); 964 LOGE("getMetadata failed %d", status); 965 return status; 966 } 967 968 // FIXME: Implement filtering on the result. Not critical since 969 // filtering takes place on the update notifications already. This 970 // would be when all the metadata are fetch and a filter is set. 971 972 // Everything is fine, update the metadata length. 973 metadata.updateLength(); 974 return OK; 975} 976 977status_t MediaPlayerService::Client::suspend() { 978 sp<MediaPlayerBase> p = getPlayer(); 979 if (p == 0) return UNKNOWN_ERROR; 980 981 return p->suspend(); 982} 983 984status_t MediaPlayerService::Client::resume() { 985 sp<MediaPlayerBase> p = getPlayer(); 986 if (p == 0) return UNKNOWN_ERROR; 987 988 return p->resume(); 989} 990 991status_t MediaPlayerService::Client::prepareAsync() 992{ 993 LOGV("[%d] prepareAsync", mConnId); 994 sp<MediaPlayerBase> p = getPlayer(); 995 if (p == 0) return UNKNOWN_ERROR; 996 status_t ret = p->prepareAsync(); 997#if CALLBACK_ANTAGONIZER 998 LOGD("start Antagonizer"); 999 if (ret == NO_ERROR) mAntagonizer->start(); 1000#endif 1001 return ret; 1002} 1003 1004status_t MediaPlayerService::Client::start() 1005{ 1006 LOGV("[%d] start", mConnId); 1007 sp<MediaPlayerBase> p = getPlayer(); 1008 if (p == 0) return UNKNOWN_ERROR; 1009 p->setLooping(mLoop); 1010 return p->start(); 1011} 1012 1013status_t MediaPlayerService::Client::stop() 1014{ 1015 LOGV("[%d] stop", mConnId); 1016 sp<MediaPlayerBase> p = getPlayer(); 1017 if (p == 0) return UNKNOWN_ERROR; 1018 return p->stop(); 1019} 1020 1021status_t MediaPlayerService::Client::pause() 1022{ 1023 LOGV("[%d] pause", mConnId); 1024 sp<MediaPlayerBase> p = getPlayer(); 1025 if (p == 0) return UNKNOWN_ERROR; 1026 return p->pause(); 1027} 1028 1029status_t MediaPlayerService::Client::isPlaying(bool* state) 1030{ 1031 *state = false; 1032 sp<MediaPlayerBase> p = getPlayer(); 1033 if (p == 0) return UNKNOWN_ERROR; 1034 *state = p->isPlaying(); 1035 LOGV("[%d] isPlaying: %d", mConnId, *state); 1036 return NO_ERROR; 1037} 1038 1039status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 1040{ 1041 LOGV("getCurrentPosition"); 1042 sp<MediaPlayerBase> p = getPlayer(); 1043 if (p == 0) return UNKNOWN_ERROR; 1044 status_t ret = p->getCurrentPosition(msec); 1045 if (ret == NO_ERROR) { 1046 LOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 1047 } else { 1048 LOGE("getCurrentPosition returned %d", ret); 1049 } 1050 return ret; 1051} 1052 1053status_t MediaPlayerService::Client::getDuration(int *msec) 1054{ 1055 LOGV("getDuration"); 1056 sp<MediaPlayerBase> p = getPlayer(); 1057 if (p == 0) return UNKNOWN_ERROR; 1058 status_t ret = p->getDuration(msec); 1059 if (ret == NO_ERROR) { 1060 LOGV("[%d] getDuration = %d", mConnId, *msec); 1061 } else { 1062 LOGE("getDuration returned %d", ret); 1063 } 1064 return ret; 1065} 1066 1067status_t MediaPlayerService::Client::seekTo(int msec) 1068{ 1069 LOGV("[%d] seekTo(%d)", mConnId, msec); 1070 sp<MediaPlayerBase> p = getPlayer(); 1071 if (p == 0) return UNKNOWN_ERROR; 1072 return p->seekTo(msec); 1073} 1074 1075status_t MediaPlayerService::Client::reset() 1076{ 1077 LOGV("[%d] reset", mConnId); 1078 sp<MediaPlayerBase> p = getPlayer(); 1079 if (p == 0) return UNKNOWN_ERROR; 1080 return p->reset(); 1081} 1082 1083status_t MediaPlayerService::Client::setAudioStreamType(int type) 1084{ 1085 LOGV("[%d] setAudioStreamType(%d)", mConnId, type); 1086 // TODO: for hardware output, call player instead 1087 Mutex::Autolock l(mLock); 1088 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 1089 return NO_ERROR; 1090} 1091 1092status_t MediaPlayerService::Client::setLooping(int loop) 1093{ 1094 LOGV("[%d] setLooping(%d)", mConnId, loop); 1095 mLoop = loop; 1096 sp<MediaPlayerBase> p = getPlayer(); 1097 if (p != 0) return p->setLooping(loop); 1098 return NO_ERROR; 1099} 1100 1101status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1102{ 1103 LOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1104 // TODO: for hardware output, call player instead 1105 Mutex::Autolock l(mLock); 1106 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1107 return NO_ERROR; 1108} 1109 1110status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level) 1111{ 1112 LOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level); 1113 Mutex::Autolock l(mLock); 1114 if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level); 1115 return NO_ERROR; 1116} 1117 1118status_t MediaPlayerService::Client::attachAuxEffect(int effectId) 1119{ 1120 LOGV("[%d] attachAuxEffect(%d)", mConnId, effectId); 1121 Mutex::Autolock l(mLock); 1122 if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId); 1123 return NO_ERROR; 1124} 1125 1126void MediaPlayerService::Client::notify(void* cookie, int msg, int ext1, int ext2) 1127{ 1128 Client* client = static_cast<Client*>(cookie); 1129 1130 if (MEDIA_INFO == msg && 1131 MEDIA_INFO_METADATA_UPDATE == ext1) { 1132 const media::Metadata::Type metadata_type = ext2; 1133 1134 if(client->shouldDropMetadata(metadata_type)) { 1135 return; 1136 } 1137 1138 // Update the list of metadata that have changed. getMetadata 1139 // also access mMetadataUpdated and clears it. 1140 client->addNewMetadataUpdate(metadata_type); 1141 } 1142 LOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1143 client->mClient->notify(msg, ext1, ext2); 1144} 1145 1146 1147bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1148{ 1149 Mutex::Autolock lock(mLock); 1150 1151 if (findMetadata(mMetadataDrop, code)) { 1152 return true; 1153 } 1154 1155 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1156 return false; 1157 } else { 1158 return true; 1159 } 1160} 1161 1162 1163void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1164 Mutex::Autolock lock(mLock); 1165 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1166 mMetadataUpdated.add(metadata_type); 1167 } 1168} 1169 1170#if CALLBACK_ANTAGONIZER 1171const int Antagonizer::interval = 10000; // 10 msecs 1172 1173Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1174 mExit(false), mActive(false), mClient(client), mCb(cb) 1175{ 1176 createThread(callbackThread, this); 1177} 1178 1179void Antagonizer::kill() 1180{ 1181 Mutex::Autolock _l(mLock); 1182 mActive = false; 1183 mExit = true; 1184 mCondition.wait(mLock); 1185} 1186 1187int Antagonizer::callbackThread(void* user) 1188{ 1189 LOGD("Antagonizer started"); 1190 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1191 while (!p->mExit) { 1192 if (p->mActive) { 1193 LOGV("send event"); 1194 p->mCb(p->mClient, 0, 0, 0); 1195 } 1196 usleep(interval); 1197 } 1198 Mutex::Autolock _l(p->mLock); 1199 p->mCondition.signal(); 1200 LOGD("Antagonizer stopped"); 1201 return 0; 1202} 1203#endif 1204 1205static size_t kDefaultHeapSize = 1024 * 1024; // 1MB 1206 1207sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 1208{ 1209 LOGV("decode(%s)", url); 1210 sp<MemoryBase> mem; 1211 sp<MediaPlayerBase> player; 1212 1213 // Protect our precious, precious DRMd ringtones by only allowing 1214 // decoding of http, but not filesystem paths or content Uris. 1215 // If the application wants to decode those, it should open a 1216 // filedescriptor for them and use that. 1217 if (url != NULL && strncmp(url, "http://", 7) != 0) { 1218 LOGD("Can't decode %s by path, use filedescriptor instead", url); 1219 return mem; 1220 } 1221 1222 player_type playerType = getPlayerType(url); 1223 LOGV("player type = %d", playerType); 1224 1225 // create the right type of player 1226 sp<AudioCache> cache = new AudioCache(url); 1227 player = android::createPlayer(playerType, cache.get(), cache->notify); 1228 if (player == NULL) goto Exit; 1229 if (player->hardwareOutput()) goto Exit; 1230 1231 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1232 1233 // set data source 1234 if (player->setDataSource(url) != NO_ERROR) goto Exit; 1235 1236 LOGV("prepare"); 1237 player->prepareAsync(); 1238 1239 LOGV("wait for prepare"); 1240 if (cache->wait() != NO_ERROR) goto Exit; 1241 1242 LOGV("start"); 1243 player->start(); 1244 1245 LOGV("wait for playback complete"); 1246 if (cache->wait() != NO_ERROR) goto Exit; 1247 1248 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1249 *pSampleRate = cache->sampleRate(); 1250 *pNumChannels = cache->channelCount(); 1251 *pFormat = cache->format(); 1252 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1253 1254Exit: 1255 if (player != 0) player->reset(); 1256 return mem; 1257} 1258 1259sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 1260{ 1261 LOGV("decode(%d, %lld, %lld)", fd, offset, length); 1262 sp<MemoryBase> mem; 1263 sp<MediaPlayerBase> player; 1264 1265 player_type playerType = getPlayerType(fd, offset, length); 1266 LOGV("player type = %d", playerType); 1267 1268 // create the right type of player 1269 sp<AudioCache> cache = new AudioCache("decode_fd"); 1270 player = android::createPlayer(playerType, cache.get(), cache->notify); 1271 if (player == NULL) goto Exit; 1272 if (player->hardwareOutput()) goto Exit; 1273 1274 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1275 1276 // set data source 1277 if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit; 1278 1279 LOGV("prepare"); 1280 player->prepareAsync(); 1281 1282 LOGV("wait for prepare"); 1283 if (cache->wait() != NO_ERROR) goto Exit; 1284 1285 LOGV("start"); 1286 player->start(); 1287 1288 LOGV("wait for playback complete"); 1289 if (cache->wait() != NO_ERROR) goto Exit; 1290 1291 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1292 *pSampleRate = cache->sampleRate(); 1293 *pNumChannels = cache->channelCount(); 1294 *pFormat = cache->format(); 1295 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1296 1297Exit: 1298 if (player != 0) player->reset(); 1299 ::close(fd); 1300 return mem; 1301} 1302 1303 1304#undef LOG_TAG 1305#define LOG_TAG "AudioSink" 1306MediaPlayerService::AudioOutput::AudioOutput(int sessionId) 1307 : mCallback(NULL), 1308 mCallbackCookie(NULL), 1309 mSessionId(sessionId) { 1310 LOGV("AudioOutput(%d)", sessionId); 1311 mTrack = 0; 1312 mStreamType = AudioSystem::MUSIC; 1313 mLeftVolume = 1.0; 1314 mRightVolume = 1.0; 1315 mLatency = 0; 1316 mMsecsPerFrame = 0; 1317 mAuxEffectId = 0; 1318 mSendLevel = 0.0; 1319 setMinBufferCount(); 1320} 1321 1322MediaPlayerService::AudioOutput::~AudioOutput() 1323{ 1324 close(); 1325} 1326 1327void MediaPlayerService::AudioOutput::setMinBufferCount() 1328{ 1329 char value[PROPERTY_VALUE_MAX]; 1330 if (property_get("ro.kernel.qemu", value, 0)) { 1331 mIsOnEmulator = true; 1332 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1333 } 1334} 1335 1336bool MediaPlayerService::AudioOutput::isOnEmulator() 1337{ 1338 setMinBufferCount(); 1339 return mIsOnEmulator; 1340} 1341 1342int MediaPlayerService::AudioOutput::getMinBufferCount() 1343{ 1344 setMinBufferCount(); 1345 return mMinBufferCount; 1346} 1347 1348ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1349{ 1350 if (mTrack == 0) return NO_INIT; 1351 return mTrack->frameCount() * frameSize(); 1352} 1353 1354ssize_t MediaPlayerService::AudioOutput::frameCount() const 1355{ 1356 if (mTrack == 0) return NO_INIT; 1357 return mTrack->frameCount(); 1358} 1359 1360ssize_t MediaPlayerService::AudioOutput::channelCount() const 1361{ 1362 if (mTrack == 0) return NO_INIT; 1363 return mTrack->channelCount(); 1364} 1365 1366ssize_t MediaPlayerService::AudioOutput::frameSize() const 1367{ 1368 if (mTrack == 0) return NO_INIT; 1369 return mTrack->frameSize(); 1370} 1371 1372uint32_t MediaPlayerService::AudioOutput::latency () const 1373{ 1374 return mLatency; 1375} 1376 1377float MediaPlayerService::AudioOutput::msecsPerFrame() const 1378{ 1379 return mMsecsPerFrame; 1380} 1381 1382status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) 1383{ 1384 if (mTrack == 0) return NO_INIT; 1385 return mTrack->getPosition(position); 1386} 1387 1388status_t MediaPlayerService::AudioOutput::open( 1389 uint32_t sampleRate, int channelCount, int format, int bufferCount, 1390 AudioCallback cb, void *cookie) 1391{ 1392 mCallback = cb; 1393 mCallbackCookie = cookie; 1394 1395 // Check argument "bufferCount" against the mininum buffer count 1396 if (bufferCount < mMinBufferCount) { 1397 LOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount); 1398 bufferCount = mMinBufferCount; 1399 1400 } 1401 LOGV("open(%u, %d, %d, %d, %d)", sampleRate, channelCount, format, bufferCount,mSessionId); 1402 if (mTrack) close(); 1403 int afSampleRate; 1404 int afFrameCount; 1405 int frameCount; 1406 1407 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1408 return NO_INIT; 1409 } 1410 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1411 return NO_INIT; 1412 } 1413 1414 frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate; 1415 1416 AudioTrack *t; 1417 if (mCallback != NULL) { 1418 t = new AudioTrack( 1419 mStreamType, 1420 sampleRate, 1421 format, 1422 (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO, 1423 frameCount, 1424 0 /* flags */, 1425 CallbackWrapper, 1426 this, 1427 0, 1428 mSessionId); 1429 } else { 1430 t = new AudioTrack( 1431 mStreamType, 1432 sampleRate, 1433 format, 1434 (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO, 1435 frameCount, 1436 0, 1437 NULL, 1438 NULL, 1439 0, 1440 mSessionId); 1441 } 1442 1443 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1444 LOGE("Unable to create audio track"); 1445 delete t; 1446 return NO_INIT; 1447 } 1448 1449 LOGV("setVolume"); 1450 t->setVolume(mLeftVolume, mRightVolume); 1451 1452 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1453 mLatency = t->latency(); 1454 mTrack = t; 1455 1456 t->setAuxEffectSendLevel(mSendLevel); 1457 return t->attachAuxEffect(mAuxEffectId);; 1458} 1459 1460void MediaPlayerService::AudioOutput::start() 1461{ 1462 LOGV("start"); 1463 if (mTrack) { 1464 mTrack->setVolume(mLeftVolume, mRightVolume); 1465 mTrack->setAuxEffectSendLevel(mSendLevel); 1466 mTrack->start(); 1467 } 1468} 1469 1470 1471 1472ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size) 1473{ 1474 LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 1475 1476 //LOGV("write(%p, %u)", buffer, size); 1477 if (mTrack) { 1478 ssize_t ret = mTrack->write(buffer, size); 1479 return ret; 1480 } 1481 return NO_INIT; 1482} 1483 1484void MediaPlayerService::AudioOutput::stop() 1485{ 1486 LOGV("stop"); 1487 if (mTrack) mTrack->stop(); 1488} 1489 1490void MediaPlayerService::AudioOutput::flush() 1491{ 1492 LOGV("flush"); 1493 if (mTrack) mTrack->flush(); 1494} 1495 1496void MediaPlayerService::AudioOutput::pause() 1497{ 1498 LOGV("pause"); 1499 if (mTrack) mTrack->pause(); 1500} 1501 1502void MediaPlayerService::AudioOutput::close() 1503{ 1504 LOGV("close"); 1505 delete mTrack; 1506 mTrack = 0; 1507} 1508 1509void MediaPlayerService::AudioOutput::setVolume(float left, float right) 1510{ 1511 LOGV("setVolume(%f, %f)", left, right); 1512 mLeftVolume = left; 1513 mRightVolume = right; 1514 if (mTrack) { 1515 mTrack->setVolume(left, right); 1516 } 1517} 1518 1519status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level) 1520{ 1521 LOGV("setAuxEffectSendLevel(%f)", level); 1522 mSendLevel = level; 1523 if (mTrack) { 1524 return mTrack->setAuxEffectSendLevel(level); 1525 } 1526 return NO_ERROR; 1527} 1528 1529status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId) 1530{ 1531 LOGV("attachAuxEffect(%d)", effectId); 1532 mAuxEffectId = effectId; 1533 if (mTrack) { 1534 return mTrack->attachAuxEffect(effectId); 1535 } 1536 return NO_ERROR; 1537} 1538 1539// static 1540void MediaPlayerService::AudioOutput::CallbackWrapper( 1541 int event, void *cookie, void *info) { 1542 //LOGV("callbackwrapper"); 1543 if (event != AudioTrack::EVENT_MORE_DATA) { 1544 return; 1545 } 1546 1547 AudioOutput *me = (AudioOutput *)cookie; 1548 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 1549 1550 size_t actualSize = (*me->mCallback)( 1551 me, buffer->raw, buffer->size, me->mCallbackCookie); 1552 1553 buffer->size = actualSize; 1554 1555} 1556 1557int MediaPlayerService::AudioOutput::getSessionId() 1558{ 1559 return mSessionId; 1560} 1561 1562#undef LOG_TAG 1563#define LOG_TAG "AudioCache" 1564MediaPlayerService::AudioCache::AudioCache(const char* name) : 1565 mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0), 1566 mError(NO_ERROR), mCommandComplete(false) 1567{ 1568 // create ashmem heap 1569 mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name); 1570} 1571 1572uint32_t MediaPlayerService::AudioCache::latency () const 1573{ 1574 return 0; 1575} 1576 1577float MediaPlayerService::AudioCache::msecsPerFrame() const 1578{ 1579 return mMsecsPerFrame; 1580} 1581 1582status_t MediaPlayerService::AudioCache::getPosition(uint32_t *position) 1583{ 1584 if (position == 0) return BAD_VALUE; 1585 *position = mSize; 1586 return NO_ERROR; 1587} 1588 1589//////////////////////////////////////////////////////////////////////////////// 1590 1591struct CallbackThread : public Thread { 1592 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 1593 MediaPlayerBase::AudioSink::AudioCallback cb, 1594 void *cookie); 1595 1596protected: 1597 virtual ~CallbackThread(); 1598 1599 virtual bool threadLoop(); 1600 1601private: 1602 wp<MediaPlayerBase::AudioSink> mSink; 1603 MediaPlayerBase::AudioSink::AudioCallback mCallback; 1604 void *mCookie; 1605 void *mBuffer; 1606 size_t mBufferSize; 1607 1608 CallbackThread(const CallbackThread &); 1609 CallbackThread &operator=(const CallbackThread &); 1610}; 1611 1612CallbackThread::CallbackThread( 1613 const wp<MediaPlayerBase::AudioSink> &sink, 1614 MediaPlayerBase::AudioSink::AudioCallback cb, 1615 void *cookie) 1616 : mSink(sink), 1617 mCallback(cb), 1618 mCookie(cookie), 1619 mBuffer(NULL), 1620 mBufferSize(0) { 1621} 1622 1623CallbackThread::~CallbackThread() { 1624 if (mBuffer) { 1625 free(mBuffer); 1626 mBuffer = NULL; 1627 } 1628} 1629 1630bool CallbackThread::threadLoop() { 1631 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 1632 if (sink == NULL) { 1633 return false; 1634 } 1635 1636 if (mBuffer == NULL) { 1637 mBufferSize = sink->bufferSize(); 1638 mBuffer = malloc(mBufferSize); 1639 } 1640 1641 size_t actualSize = 1642 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie); 1643 1644 if (actualSize > 0) { 1645 sink->write(mBuffer, actualSize); 1646 } 1647 1648 return true; 1649} 1650 1651//////////////////////////////////////////////////////////////////////////////// 1652 1653status_t MediaPlayerService::AudioCache::open( 1654 uint32_t sampleRate, int channelCount, int format, int bufferCount, 1655 AudioCallback cb, void *cookie) 1656{ 1657 LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount); 1658 if (mHeap->getHeapID() < 0) { 1659 return NO_INIT; 1660 } 1661 1662 mSampleRate = sampleRate; 1663 mChannelCount = (uint16_t)channelCount; 1664 mFormat = (uint16_t)format; 1665 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1666 1667 if (cb != NULL) { 1668 mCallbackThread = new CallbackThread(this, cb, cookie); 1669 } 1670 return NO_ERROR; 1671} 1672 1673void MediaPlayerService::AudioCache::start() { 1674 if (mCallbackThread != NULL) { 1675 mCallbackThread->run("AudioCache callback"); 1676 } 1677} 1678 1679void MediaPlayerService::AudioCache::stop() { 1680 if (mCallbackThread != NULL) { 1681 mCallbackThread->requestExitAndWait(); 1682 } 1683} 1684 1685ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size) 1686{ 1687 LOGV("write(%p, %u)", buffer, size); 1688 if ((buffer == 0) || (size == 0)) return size; 1689 1690 uint8_t* p = static_cast<uint8_t*>(mHeap->getBase()); 1691 if (p == NULL) return NO_INIT; 1692 p += mSize; 1693 LOGV("memcpy(%p, %p, %u)", p, buffer, size); 1694 if (mSize + size > mHeap->getSize()) { 1695 LOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize()); 1696 size = mHeap->getSize() - mSize; 1697 } 1698 memcpy(p, buffer, size); 1699 mSize += size; 1700 return size; 1701} 1702 1703// call with lock held 1704status_t MediaPlayerService::AudioCache::wait() 1705{ 1706 Mutex::Autolock lock(mLock); 1707 while (!mCommandComplete) { 1708 mSignal.wait(mLock); 1709 } 1710 mCommandComplete = false; 1711 1712 if (mError == NO_ERROR) { 1713 LOGV("wait - success"); 1714 } else { 1715 LOGV("wait - error"); 1716 } 1717 return mError; 1718} 1719 1720void MediaPlayerService::AudioCache::notify(void* cookie, int msg, int ext1, int ext2) 1721{ 1722 LOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2); 1723 AudioCache* p = static_cast<AudioCache*>(cookie); 1724 1725 // ignore buffering messages 1726 switch (msg) 1727 { 1728 case MEDIA_ERROR: 1729 LOGE("Error %d, %d occurred", ext1, ext2); 1730 p->mError = ext1; 1731 break; 1732 case MEDIA_PREPARED: 1733 LOGV("prepared"); 1734 break; 1735 case MEDIA_PLAYBACK_COMPLETE: 1736 LOGV("playback complete"); 1737 break; 1738 default: 1739 LOGV("ignored"); 1740 return; 1741 } 1742 1743 // wake up thread 1744 Mutex::Autolock lock(p->mLock); 1745 p->mCommandComplete = true; 1746 p->mSignal.signal(); 1747} 1748 1749int MediaPlayerService::AudioCache::getSessionId() 1750{ 1751 return 0; 1752} 1753 1754} // namespace android 1755