MediaPlayerService.cpp revision 7562408b2261d38415453378b6188f74fda99d88
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#include <cutils/atomic.h> 31 32#include <android_runtime/ActivityManager.h> 33#include <binder/IPCThreadState.h> 34#include <binder/IServiceManager.h> 35#include <binder/MemoryHeapBase.h> 36#include <binder/MemoryBase.h> 37#include <cutils/properties.h> 38 39#include <media/MediaPlayerInterface.h> 40#include <media/mediarecorder.h> 41#include <media/MediaMetadataRetrieverInterface.h> 42#include <media/AudioTrack.h> 43 44#include "MediaRecorderClient.h" 45#include "MediaPlayerService.h" 46#include "MetadataRetrieverClient.h" 47 48#include "MidiFile.h" 49#include "VorbisPlayer.h" 50#include <media/PVPlayer.h> 51 52/* desktop Linux needs a little help with gettid() */ 53#if defined(HAVE_GETTID) && !defined(HAVE_ANDROID_OS) 54#define __KERNEL__ 55# include <linux/unistd.h> 56#ifdef _syscall0 57_syscall0(pid_t,gettid) 58#else 59pid_t gettid() { return syscall(__NR_gettid);} 60#endif 61#undef __KERNEL__ 62#endif 63 64 65namespace android { 66 67// TODO: Temp hack until we can register players 68typedef struct { 69 const char *extension; 70 const player_type playertype; 71} extmap; 72extmap FILE_EXTS [] = { 73 {".mid", SONIVOX_PLAYER}, 74 {".midi", SONIVOX_PLAYER}, 75 {".smf", SONIVOX_PLAYER}, 76 {".xmf", SONIVOX_PLAYER}, 77 {".imy", SONIVOX_PLAYER}, 78 {".rtttl", SONIVOX_PLAYER}, 79 {".rtx", SONIVOX_PLAYER}, 80 {".ota", SONIVOX_PLAYER}, 81 {".ogg", VORBIS_PLAYER}, 82 {".oga", VORBIS_PLAYER}, 83}; 84 85// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround 86/* static */ const uint32_t MediaPlayerService::AudioOutput::kAudioVideoDelayMs = 96; 87/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4; 88/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false; 89 90void MediaPlayerService::instantiate() { 91 defaultServiceManager()->addService( 92 String16("media.player"), new MediaPlayerService()); 93} 94 95MediaPlayerService::MediaPlayerService() 96{ 97 LOGV("MediaPlayerService created"); 98 mNextConnId = 1; 99} 100 101MediaPlayerService::~MediaPlayerService() 102{ 103 LOGV("MediaPlayerService destroyed"); 104} 105 106sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(pid_t pid) 107{ 108#ifndef NO_OPENCORE 109 sp<MediaRecorderClient> recorder = new MediaRecorderClient(pid); 110#else 111 sp<MediaRecorderClient> recorder = NULL; 112#endif 113 LOGV("Create new media recorder client from pid %d", pid); 114 return recorder; 115} 116 117sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever(pid_t pid) 118{ 119 sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid); 120 LOGV("Create new media retriever from pid %d", pid); 121 return retriever; 122} 123 124sp<IMediaPlayer> MediaPlayerService::create(pid_t pid, const sp<IMediaPlayerClient>& client, const char* url) 125{ 126 int32_t connId = android_atomic_inc(&mNextConnId); 127 sp<Client> c = new Client(this, pid, connId, client); 128 LOGV("Create new client(%d) from pid %d, url=%s, connId=%d", connId, pid, url, connId); 129 if (NO_ERROR != c->setDataSource(url)) 130 { 131 c.clear(); 132 return c; 133 } 134 wp<Client> w = c; 135 Mutex::Autolock lock(mLock); 136 mClients.add(w); 137 return c; 138} 139 140sp<IMediaPlayer> MediaPlayerService::create(pid_t pid, const sp<IMediaPlayerClient>& client, 141 int fd, int64_t offset, int64_t length) 142{ 143 int32_t connId = android_atomic_inc(&mNextConnId); 144 sp<Client> c = new Client(this, pid, connId, client); 145 LOGV("Create new client(%d) from pid %d, fd=%d, offset=%lld, length=%lld", 146 connId, pid, fd, offset, length); 147 if (NO_ERROR != c->setDataSource(fd, offset, length)) { 148 c.clear(); 149 } else { 150 wp<Client> w = c; 151 Mutex::Autolock lock(mLock); 152 mClients.add(w); 153 } 154 ::close(fd); 155 return c; 156} 157 158status_t MediaPlayerService::AudioCache::dump(int fd, const Vector<String16>& args) const 159{ 160 const size_t SIZE = 256; 161 char buffer[SIZE]; 162 String8 result; 163 164 result.append(" AudioCache\n"); 165 if (mHeap != 0) { 166 snprintf(buffer, 255, " heap base(%p), size(%d), flags(%d), device(%s)\n", 167 mHeap->getBase(), mHeap->getSize(), mHeap->getFlags(), mHeap->getDevice()); 168 result.append(buffer); 169 } 170 snprintf(buffer, 255, " msec per frame(%f), channel count(%d), format(%d), frame count(%ld)\n", 171 mMsecsPerFrame, mChannelCount, mFormat, mFrameCount); 172 result.append(buffer); 173 snprintf(buffer, 255, " sample rate(%d), size(%d), error(%d), command complete(%s)\n", 174 mSampleRate, mSize, mError, mCommandComplete?"true":"false"); 175 result.append(buffer); 176 ::write(fd, result.string(), result.size()); 177 return NO_ERROR; 178} 179 180status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const 181{ 182 const size_t SIZE = 256; 183 char buffer[SIZE]; 184 String8 result; 185 186 result.append(" AudioOutput\n"); 187 snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", 188 mStreamType, mLeftVolume, mRightVolume); 189 result.append(buffer); 190 snprintf(buffer, 255, " msec per frame(%f), latency (%d)\n", 191 mMsecsPerFrame, mLatency); 192 result.append(buffer); 193 ::write(fd, result.string(), result.size()); 194 if (mTrack != 0) { 195 mTrack->dump(fd, args); 196 } 197 return NO_ERROR; 198} 199 200status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) const 201{ 202 const size_t SIZE = 256; 203 char buffer[SIZE]; 204 String8 result; 205 result.append(" Client\n"); 206 snprintf(buffer, 255, " pid(%d), connId(%d), status(%d), looping(%s)\n", 207 mPid, mConnId, mStatus, mLoop?"true": "false"); 208 result.append(buffer); 209 write(fd, result.string(), result.size()); 210 if (mAudioOutput != 0) { 211 mAudioOutput->dump(fd, args); 212 } 213 write(fd, "\n", 1); 214 return NO_ERROR; 215} 216 217static int myTid() { 218#ifdef HAVE_GETTID 219 return gettid(); 220#else 221 return getpid(); 222#endif 223} 224 225#if defined(__arm__) 226extern "C" void get_malloc_leak_info(uint8_t** info, size_t* overallSize, 227 size_t* infoSize, size_t* totalMemory, size_t* backtraceSize); 228extern "C" void free_malloc_leak_info(uint8_t* info); 229 230void memStatus(int fd, const Vector<String16>& args) 231{ 232 const size_t SIZE = 256; 233 char buffer[SIZE]; 234 String8 result; 235 236 typedef struct { 237 size_t size; 238 size_t dups; 239 intptr_t * backtrace; 240 } AllocEntry; 241 242 uint8_t *info = NULL; 243 size_t overallSize = 0; 244 size_t infoSize = 0; 245 size_t totalMemory = 0; 246 size_t backtraceSize = 0; 247 248 get_malloc_leak_info(&info, &overallSize, &infoSize, &totalMemory, &backtraceSize); 249 if (info) { 250 uint8_t *ptr = info; 251 size_t count = overallSize / infoSize; 252 253 snprintf(buffer, SIZE, " Allocation count %i\n", count); 254 result.append(buffer); 255 256 AllocEntry * entries = new AllocEntry[count]; 257 258 for (size_t i = 0; i < count; i++) { 259 // Each entry should be size_t, size_t, intptr_t[backtraceSize] 260 AllocEntry *e = &entries[i]; 261 262 e->size = *reinterpret_cast<size_t *>(ptr); 263 ptr += sizeof(size_t); 264 265 e->dups = *reinterpret_cast<size_t *>(ptr); 266 ptr += sizeof(size_t); 267 268 e->backtrace = reinterpret_cast<intptr_t *>(ptr); 269 ptr += sizeof(intptr_t) * backtraceSize; 270 } 271 272 // Now we need to sort the entries. They come sorted by size but 273 // not by stack trace which causes problems using diff. 274 bool moved; 275 do { 276 moved = false; 277 for (size_t i = 0; i < (count - 1); i++) { 278 AllocEntry *e1 = &entries[i]; 279 AllocEntry *e2 = &entries[i+1]; 280 281 bool swap = e1->size < e2->size; 282 if (e1->size == e2->size) { 283 for(size_t j = 0; j < backtraceSize; j++) { 284 if (e1->backtrace[j] == e2->backtrace[j]) { 285 continue; 286 } 287 swap = e1->backtrace[j] < e2->backtrace[j]; 288 break; 289 } 290 } 291 if (swap) { 292 AllocEntry t = entries[i]; 293 entries[i] = entries[i+1]; 294 entries[i+1] = t; 295 moved = true; 296 } 297 } 298 } while (moved); 299 300 for (size_t i = 0; i < count; i++) { 301 AllocEntry *e = &entries[i]; 302 303 snprintf(buffer, SIZE, "size %8i, dup %4i", e->size, e->dups); 304 result.append(buffer); 305 for (size_t ct = 0; (ct < backtraceSize) && e->backtrace[ct]; ct++) { 306 if (ct) { 307 result.append(", "); 308 } 309 snprintf(buffer, SIZE, "0x%08x", e->backtrace[ct]); 310 result.append(buffer); 311 } 312 result.append("\n"); 313 } 314 315 delete[] entries; 316 free_malloc_leak_info(info); 317 } 318 319 write(fd, result.string(), result.size()); 320} 321#endif 322 323status_t MediaPlayerService::dump(int fd, const Vector<String16>& args) 324{ 325 const size_t SIZE = 256; 326 char buffer[SIZE]; 327 String8 result; 328 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 329 snprintf(buffer, SIZE, "Permission Denial: " 330 "can't dump MediaPlayerService from pid=%d, uid=%d\n", 331 IPCThreadState::self()->getCallingPid(), 332 IPCThreadState::self()->getCallingUid()); 333 result.append(buffer); 334 } else { 335 Mutex::Autolock lock(mLock); 336 for (int i = 0, n = mClients.size(); i < n; ++i) { 337 sp<Client> c = mClients[i].promote(); 338 if (c != 0) c->dump(fd, args); 339 } 340 result.append(" Files opened and/or mapped:\n"); 341 snprintf(buffer, SIZE, "/proc/%d/maps", myTid()); 342 FILE *f = fopen(buffer, "r"); 343 if (f) { 344 while (!feof(f)) { 345 fgets(buffer, SIZE, f); 346 if (strstr(buffer, " /sdcard/") || 347 strstr(buffer, " /system/sounds/") || 348 strstr(buffer, " /system/media/")) { 349 result.append(" "); 350 result.append(buffer); 351 } 352 } 353 fclose(f); 354 } else { 355 result.append("couldn't open "); 356 result.append(buffer); 357 result.append("\n"); 358 } 359 360 snprintf(buffer, SIZE, "/proc/%d/fd", myTid()); 361 DIR *d = opendir(buffer); 362 if (d) { 363 struct dirent *ent; 364 while((ent = readdir(d)) != NULL) { 365 if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) { 366 snprintf(buffer, SIZE, "/proc/%d/fd/%s", myTid(), ent->d_name); 367 struct stat s; 368 if (lstat(buffer, &s) == 0) { 369 if ((s.st_mode & S_IFMT) == S_IFLNK) { 370 char linkto[256]; 371 int len = readlink(buffer, linkto, sizeof(linkto)); 372 if(len > 0) { 373 if(len > 255) { 374 linkto[252] = '.'; 375 linkto[253] = '.'; 376 linkto[254] = '.'; 377 linkto[255] = 0; 378 } else { 379 linkto[len] = 0; 380 } 381 if (strstr(linkto, "/sdcard/") == linkto || 382 strstr(linkto, "/system/sounds/") == linkto || 383 strstr(linkto, "/system/media/") == linkto) { 384 result.append(" "); 385 result.append(buffer); 386 result.append(" -> "); 387 result.append(linkto); 388 result.append("\n"); 389 } 390 } 391 } else { 392 result.append(" unexpected type for "); 393 result.append(buffer); 394 result.append("\n"); 395 } 396 } 397 } 398 } 399 closedir(d); 400 } else { 401 result.append("couldn't open "); 402 result.append(buffer); 403 result.append("\n"); 404 } 405 406#if defined(__arm__) 407 bool dumpMem = false; 408 for (size_t i = 0; i < args.size(); i++) { 409 if (args[i] == String16("-m")) { 410 dumpMem = true; 411 } 412 } 413 if (dumpMem) { 414 memStatus(fd, args); 415 } 416#endif 417 } 418 write(fd, result.string(), result.size()); 419 return NO_ERROR; 420} 421 422void MediaPlayerService::removeClient(wp<Client> client) 423{ 424 Mutex::Autolock lock(mLock); 425 mClients.remove(client); 426} 427 428MediaPlayerService::Client::Client(const sp<MediaPlayerService>& service, pid_t pid, 429 int32_t connId, const sp<IMediaPlayerClient>& client) 430{ 431 LOGV("Client(%d) constructor", connId); 432 mPid = pid; 433 mConnId = connId; 434 mService = service; 435 mClient = client; 436 mLoop = false; 437 mStatus = NO_INIT; 438#if CALLBACK_ANTAGONIZER 439 LOGD("create Antagonizer"); 440 mAntagonizer = new Antagonizer(notify, this); 441#endif 442} 443 444MediaPlayerService::Client::~Client() 445{ 446 LOGV("Client(%d) destructor pid = %d", mConnId, mPid); 447 mAudioOutput.clear(); 448 wp<Client> client(this); 449 disconnect(); 450 mService->removeClient(client); 451} 452 453void MediaPlayerService::Client::disconnect() 454{ 455 LOGV("disconnect(%d) from pid %d", mConnId, mPid); 456 // grab local reference and clear main reference to prevent future 457 // access to object 458 sp<MediaPlayerBase> p; 459 { 460 Mutex::Autolock l(mLock); 461 p = mPlayer; 462 } 463 mClient.clear(); 464 mPlayer.clear(); 465 466 // clear the notification to prevent callbacks to dead client 467 // and reset the player. We assume the player will serialize 468 // access to itself if necessary. 469 if (p != 0) { 470 p->setNotifyCallback(0, 0); 471#if CALLBACK_ANTAGONIZER 472 LOGD("kill Antagonizer"); 473 mAntagonizer->kill(); 474#endif 475 p->reset(); 476 } 477 478 IPCThreadState::self()->flushCommands(); 479} 480 481static player_type getPlayerType(int fd, int64_t offset, int64_t length) 482{ 483 char buf[20]; 484 lseek(fd, offset, SEEK_SET); 485 read(fd, buf, sizeof(buf)); 486 lseek(fd, offset, SEEK_SET); 487 488 long ident = *((long*)buf); 489 490 // Ogg vorbis? 491 if (ident == 0x5367674f) // 'OggS' 492 return VORBIS_PLAYER; 493 494 // Some kind of MIDI? 495 EAS_DATA_HANDLE easdata; 496 if (EAS_Init(&easdata) == EAS_SUCCESS) { 497 EAS_FILE locator; 498 locator.path = NULL; 499 locator.fd = fd; 500 locator.offset = offset; 501 locator.length = length; 502 EAS_HANDLE eashandle; 503 if (EAS_OpenFile(easdata, &locator, &eashandle) == EAS_SUCCESS) { 504 EAS_CloseFile(easdata, eashandle); 505 EAS_Shutdown(easdata); 506 return SONIVOX_PLAYER; 507 } 508 EAS_Shutdown(easdata); 509 } 510 511 // Fall through to PV 512 return PV_PLAYER; 513} 514 515static player_type getPlayerType(const char* url) 516{ 517 518 // use MidiFile for MIDI extensions 519 int lenURL = strlen(url); 520 for (int i = 0; i < NELEM(FILE_EXTS); ++i) { 521 int len = strlen(FILE_EXTS[i].extension); 522 int start = lenURL - len; 523 if (start > 0) { 524 if (!strncmp(url + start, FILE_EXTS[i].extension, len)) { 525 return FILE_EXTS[i].playertype; 526 } 527 } 528 } 529 530 // Fall through to PV 531 return PV_PLAYER; 532} 533 534static sp<MediaPlayerBase> createPlayer(player_type playerType, void* cookie, 535 notify_callback_f notifyFunc) 536{ 537 sp<MediaPlayerBase> p; 538 switch (playerType) { 539#ifndef NO_OPENCORE 540 case PV_PLAYER: 541 LOGV(" create PVPlayer"); 542 p = new PVPlayer(); 543 break; 544#endif 545 case SONIVOX_PLAYER: 546 LOGV(" create MidiFile"); 547 p = new MidiFile(); 548 break; 549 case VORBIS_PLAYER: 550 LOGV(" create VorbisPlayer"); 551 p = new VorbisPlayer(); 552 break; 553 } 554 if (p != NULL) { 555 if (p->initCheck() == NO_ERROR) { 556 p->setNotifyCallback(cookie, notifyFunc); 557 } else { 558 p.clear(); 559 } 560 } 561 if (p == NULL) { 562 LOGE("Failed to create player object"); 563 } 564 return p; 565} 566 567sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) 568{ 569 // determine if we have the right player type 570 sp<MediaPlayerBase> p = mPlayer; 571 if ((p != NULL) && (p->playerType() != playerType)) { 572 LOGV("delete player"); 573 p.clear(); 574 } 575 if (p == NULL) { 576 p = android::createPlayer(playerType, this, notify); 577 } 578 return p; 579} 580 581status_t MediaPlayerService::Client::setDataSource(const char *url) 582{ 583 LOGV("setDataSource(%s)", url); 584 if (url == NULL) 585 return UNKNOWN_ERROR; 586 587 if (strncmp(url, "content://", 10) == 0) { 588 // get a filedescriptor for the content Uri and 589 // pass it to the setDataSource(fd) method 590 591 String16 url16(url); 592 int fd = android::openContentProviderFile(url16); 593 if (fd < 0) 594 { 595 LOGE("Couldn't open fd for %s", url); 596 return UNKNOWN_ERROR; 597 } 598 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 599 close(fd); 600 return mStatus; 601 } else { 602 player_type playerType = getPlayerType(url); 603 LOGV("player type = %d", playerType); 604 605 // create the right type of player 606 sp<MediaPlayerBase> p = createPlayer(playerType); 607 if (p == NULL) return NO_INIT; 608 609 if (!p->hardwareOutput()) { 610 mAudioOutput = new AudioOutput(); 611 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 612 } 613 614 // now set data source 615 LOGV(" setDataSource"); 616 mStatus = p->setDataSource(url); 617 if (mStatus == NO_ERROR) mPlayer = p; 618 return mStatus; 619 } 620} 621 622status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 623{ 624 LOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length); 625 struct stat sb; 626 int ret = fstat(fd, &sb); 627 if (ret != 0) { 628 LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 629 return UNKNOWN_ERROR; 630 } 631 632 LOGV("st_dev = %llu", sb.st_dev); 633 LOGV("st_mode = %u", sb.st_mode); 634 LOGV("st_uid = %lu", sb.st_uid); 635 LOGV("st_gid = %lu", sb.st_gid); 636 LOGV("st_size = %llu", sb.st_size); 637 638 if (offset >= sb.st_size) { 639 LOGE("offset error"); 640 ::close(fd); 641 return UNKNOWN_ERROR; 642 } 643 if (offset + length > sb.st_size) { 644 length = sb.st_size - offset; 645 LOGV("calculated length = %lld", length); 646 } 647 648 player_type playerType = getPlayerType(fd, offset, length); 649 LOGV("player type = %d", playerType); 650 651 // create the right type of player 652 sp<MediaPlayerBase> p = createPlayer(playerType); 653 if (p == NULL) return NO_INIT; 654 655 if (!p->hardwareOutput()) { 656 mAudioOutput = new AudioOutput(); 657 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 658 } 659 660 // now set data source 661 mStatus = p->setDataSource(fd, offset, length); 662 if (mStatus == NO_ERROR) mPlayer = p; 663 return mStatus; 664} 665 666status_t MediaPlayerService::Client::setVideoSurface(const sp<ISurface>& surface) 667{ 668 LOGV("[%d] setVideoSurface(%p)", mConnId, surface.get()); 669 sp<MediaPlayerBase> p = getPlayer(); 670 if (p == 0) return UNKNOWN_ERROR; 671 return p->setVideoSurface(surface); 672} 673 674status_t MediaPlayerService::Client::prepareAsync() 675{ 676 LOGV("[%d] prepareAsync", mConnId); 677 sp<MediaPlayerBase> p = getPlayer(); 678 if (p == 0) return UNKNOWN_ERROR; 679 status_t ret = p->prepareAsync(); 680#if CALLBACK_ANTAGONIZER 681 LOGD("start Antagonizer"); 682 if (ret == NO_ERROR) mAntagonizer->start(); 683#endif 684 return ret; 685} 686 687status_t MediaPlayerService::Client::start() 688{ 689 LOGV("[%d] start", mConnId); 690 sp<MediaPlayerBase> p = getPlayer(); 691 if (p == 0) return UNKNOWN_ERROR; 692 p->setLooping(mLoop); 693 return p->start(); 694} 695 696status_t MediaPlayerService::Client::stop() 697{ 698 LOGV("[%d] stop", mConnId); 699 sp<MediaPlayerBase> p = getPlayer(); 700 if (p == 0) return UNKNOWN_ERROR; 701 return p->stop(); 702} 703 704status_t MediaPlayerService::Client::pause() 705{ 706 LOGV("[%d] pause", mConnId); 707 sp<MediaPlayerBase> p = getPlayer(); 708 if (p == 0) return UNKNOWN_ERROR; 709 return p->pause(); 710} 711 712status_t MediaPlayerService::Client::isPlaying(bool* state) 713{ 714 *state = false; 715 sp<MediaPlayerBase> p = getPlayer(); 716 if (p == 0) return UNKNOWN_ERROR; 717 *state = p->isPlaying(); 718 LOGV("[%d] isPlaying: %d", mConnId, *state); 719 return NO_ERROR; 720} 721 722status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 723{ 724 LOGV("getCurrentPosition"); 725 sp<MediaPlayerBase> p = getPlayer(); 726 if (p == 0) return UNKNOWN_ERROR; 727 status_t ret = p->getCurrentPosition(msec); 728 if (ret == NO_ERROR) { 729 LOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 730 } else { 731 LOGE("getCurrentPosition returned %d", ret); 732 } 733 return ret; 734} 735 736status_t MediaPlayerService::Client::getDuration(int *msec) 737{ 738 LOGV("getDuration"); 739 sp<MediaPlayerBase> p = getPlayer(); 740 if (p == 0) return UNKNOWN_ERROR; 741 status_t ret = p->getDuration(msec); 742 if (ret == NO_ERROR) { 743 LOGV("[%d] getDuration = %d", mConnId, *msec); 744 } else { 745 LOGE("getDuration returned %d", ret); 746 } 747 return ret; 748} 749 750status_t MediaPlayerService::Client::seekTo(int msec) 751{ 752 LOGV("[%d] seekTo(%d)", mConnId, msec); 753 sp<MediaPlayerBase> p = getPlayer(); 754 if (p == 0) return UNKNOWN_ERROR; 755 return p->seekTo(msec); 756} 757 758status_t MediaPlayerService::Client::reset() 759{ 760 LOGV("[%d] reset", mConnId); 761 sp<MediaPlayerBase> p = getPlayer(); 762 if (p == 0) return UNKNOWN_ERROR; 763 return p->reset(); 764} 765 766status_t MediaPlayerService::Client::setAudioStreamType(int type) 767{ 768 LOGV("[%d] setAudioStreamType(%d)", mConnId, type); 769 // TODO: for hardware output, call player instead 770 Mutex::Autolock l(mLock); 771 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 772 return NO_ERROR; 773} 774 775status_t MediaPlayerService::Client::setLooping(int loop) 776{ 777 LOGV("[%d] setLooping(%d)", mConnId, loop); 778 mLoop = loop; 779 sp<MediaPlayerBase> p = getPlayer(); 780 if (p != 0) return p->setLooping(loop); 781 return NO_ERROR; 782} 783 784status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 785{ 786 LOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 787 // TODO: for hardware output, call player instead 788 Mutex::Autolock l(mLock); 789 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 790 return NO_ERROR; 791} 792 793void MediaPlayerService::Client::notify(void* cookie, int msg, int ext1, int ext2) 794{ 795 Client* client = static_cast<Client*>(cookie); 796 LOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 797 client->mClient->notify(msg, ext1, ext2); 798} 799 800#if CALLBACK_ANTAGONIZER 801const int Antagonizer::interval = 10000; // 10 msecs 802 803Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 804 mExit(false), mActive(false), mClient(client), mCb(cb) 805{ 806 createThread(callbackThread, this); 807} 808 809void Antagonizer::kill() 810{ 811 Mutex::Autolock _l(mLock); 812 mActive = false; 813 mExit = true; 814 mCondition.wait(mLock); 815} 816 817int Antagonizer::callbackThread(void* user) 818{ 819 LOGD("Antagonizer started"); 820 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 821 while (!p->mExit) { 822 if (p->mActive) { 823 LOGV("send event"); 824 p->mCb(p->mClient, 0, 0, 0); 825 } 826 usleep(interval); 827 } 828 Mutex::Autolock _l(p->mLock); 829 p->mCondition.signal(); 830 LOGD("Antagonizer stopped"); 831 return 0; 832} 833#endif 834 835static size_t kDefaultHeapSize = 1024 * 1024; // 1MB 836 837sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 838{ 839 LOGV("decode(%s)", url); 840 sp<MemoryBase> mem; 841 sp<MediaPlayerBase> player; 842 843 // Protect our precious, precious DRMd ringtones by only allowing 844 // decoding of http, but not filesystem paths or content Uris. 845 // If the application wants to decode those, it should open a 846 // filedescriptor for them and use that. 847 if (url != NULL && strncmp(url, "http://", 7) != 0) { 848 LOGD("Can't decode %s by path, use filedescriptor instead", url); 849 return mem; 850 } 851 852 player_type playerType = getPlayerType(url); 853 LOGV("player type = %d", playerType); 854 855 // create the right type of player 856 sp<AudioCache> cache = new AudioCache(url); 857 player = android::createPlayer(playerType, cache.get(), cache->notify); 858 if (player == NULL) goto Exit; 859 if (player->hardwareOutput()) goto Exit; 860 861 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 862 863 // set data source 864 if (player->setDataSource(url) != NO_ERROR) goto Exit; 865 866 LOGV("prepare"); 867 player->prepareAsync(); 868 869 LOGV("wait for prepare"); 870 if (cache->wait() != NO_ERROR) goto Exit; 871 872 LOGV("start"); 873 player->start(); 874 875 LOGV("wait for playback complete"); 876 if (cache->wait() != NO_ERROR) goto Exit; 877 878 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 879 *pSampleRate = cache->sampleRate(); 880 *pNumChannels = cache->channelCount(); 881 *pFormat = cache->format(); 882 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 883 884Exit: 885 if (player != 0) player->reset(); 886 return mem; 887} 888 889sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 890{ 891 LOGV("decode(%d, %lld, %lld)", fd, offset, length); 892 sp<MemoryBase> mem; 893 sp<MediaPlayerBase> player; 894 895 player_type playerType = getPlayerType(fd, offset, length); 896 LOGV("player type = %d", playerType); 897 898 // create the right type of player 899 sp<AudioCache> cache = new AudioCache("decode_fd"); 900 player = android::createPlayer(playerType, cache.get(), cache->notify); 901 if (player == NULL) goto Exit; 902 if (player->hardwareOutput()) goto Exit; 903 904 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 905 906 // set data source 907 if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit; 908 909 LOGV("prepare"); 910 player->prepareAsync(); 911 912 LOGV("wait for prepare"); 913 if (cache->wait() != NO_ERROR) goto Exit; 914 915 LOGV("start"); 916 player->start(); 917 918 LOGV("wait for playback complete"); 919 if (cache->wait() != NO_ERROR) goto Exit; 920 921 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 922 *pSampleRate = cache->sampleRate(); 923 *pNumChannels = cache->channelCount(); 924 *pFormat = cache->format(); 925 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 926 927Exit: 928 if (player != 0) player->reset(); 929 ::close(fd); 930 return mem; 931} 932 933#undef LOG_TAG 934#define LOG_TAG "AudioSink" 935MediaPlayerService::AudioOutput::AudioOutput() 936{ 937 mTrack = 0; 938 mStreamType = AudioSystem::MUSIC; 939 mLeftVolume = 1.0; 940 mRightVolume = 1.0; 941 mLatency = 0; 942 mMsecsPerFrame = 0; 943 setMinBufferCount(); 944} 945 946MediaPlayerService::AudioOutput::~AudioOutput() 947{ 948 close(); 949} 950 951void MediaPlayerService::AudioOutput::setMinBufferCount() 952{ 953 char value[PROPERTY_VALUE_MAX]; 954 if (property_get("ro.kernel.qemu", value, 0)) { 955 mIsOnEmulator = true; 956 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 957 } 958} 959 960bool MediaPlayerService::AudioOutput::isOnEmulator() 961{ 962 setMinBufferCount(); 963 return mIsOnEmulator; 964} 965 966int MediaPlayerService::AudioOutput::getMinBufferCount() 967{ 968 setMinBufferCount(); 969 return mMinBufferCount; 970} 971 972ssize_t MediaPlayerService::AudioOutput::bufferSize() const 973{ 974 if (mTrack == 0) return NO_INIT; 975 return mTrack->frameCount() * frameSize(); 976} 977 978ssize_t MediaPlayerService::AudioOutput::frameCount() const 979{ 980 if (mTrack == 0) return NO_INIT; 981 return mTrack->frameCount(); 982} 983 984ssize_t MediaPlayerService::AudioOutput::channelCount() const 985{ 986 if (mTrack == 0) return NO_INIT; 987 return mTrack->channelCount(); 988} 989 990ssize_t MediaPlayerService::AudioOutput::frameSize() const 991{ 992 if (mTrack == 0) return NO_INIT; 993 return mTrack->frameSize(); 994} 995 996uint32_t MediaPlayerService::AudioOutput::latency () const 997{ 998 return mLatency; 999} 1000 1001float MediaPlayerService::AudioOutput::msecsPerFrame() const 1002{ 1003 return mMsecsPerFrame; 1004} 1005 1006status_t MediaPlayerService::AudioOutput::open(uint32_t sampleRate, int channelCount, int format, int bufferCount) 1007{ 1008 // Check argument "bufferCount" against the mininum buffer count 1009 if (bufferCount < mMinBufferCount) { 1010 LOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount); 1011 bufferCount = mMinBufferCount; 1012 1013 } 1014 LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount); 1015 if (mTrack) close(); 1016 int afSampleRate; 1017 int afFrameCount; 1018 int frameCount; 1019 1020 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1021 return NO_INIT; 1022 } 1023 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1024 return NO_INIT; 1025 } 1026 1027 frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate; 1028 AudioTrack *t = new AudioTrack(mStreamType, sampleRate, format, channelCount, frameCount); 1029 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1030 LOGE("Unable to create audio track"); 1031 delete t; 1032 return NO_INIT; 1033 } 1034 1035 LOGV("setVolume"); 1036 t->setVolume(mLeftVolume, mRightVolume); 1037 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1038 mLatency = t->latency() + kAudioVideoDelayMs; 1039 mTrack = t; 1040 return NO_ERROR; 1041} 1042 1043void MediaPlayerService::AudioOutput::start() 1044{ 1045 LOGV("start"); 1046 if (mTrack) { 1047 mTrack->setVolume(mLeftVolume, mRightVolume); 1048 mTrack->start(); 1049 } 1050} 1051 1052ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size) 1053{ 1054 //LOGV("write(%p, %u)", buffer, size); 1055 if (mTrack) return mTrack->write(buffer, size); 1056 return NO_INIT; 1057} 1058 1059void MediaPlayerService::AudioOutput::stop() 1060{ 1061 LOGV("stop"); 1062 if (mTrack) mTrack->stop(); 1063} 1064 1065void MediaPlayerService::AudioOutput::flush() 1066{ 1067 LOGV("flush"); 1068 if (mTrack) mTrack->flush(); 1069} 1070 1071void MediaPlayerService::AudioOutput::pause() 1072{ 1073 LOGV("pause"); 1074 if (mTrack) mTrack->pause(); 1075} 1076 1077void MediaPlayerService::AudioOutput::close() 1078{ 1079 LOGV("close"); 1080 delete mTrack; 1081 mTrack = 0; 1082} 1083 1084void MediaPlayerService::AudioOutput::setVolume(float left, float right) 1085{ 1086 LOGV("setVolume(%f, %f)", left, right); 1087 mLeftVolume = left; 1088 mRightVolume = right; 1089 if (mTrack) { 1090 mTrack->setVolume(left, right); 1091 } 1092} 1093 1094#undef LOG_TAG 1095#define LOG_TAG "AudioCache" 1096MediaPlayerService::AudioCache::AudioCache(const char* name) : 1097 mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0), 1098 mError(NO_ERROR), mCommandComplete(false) 1099{ 1100 // create ashmem heap 1101 mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name); 1102} 1103 1104uint32_t MediaPlayerService::AudioCache::latency () const 1105{ 1106 return 0; 1107} 1108 1109float MediaPlayerService::AudioCache::msecsPerFrame() const 1110{ 1111 return mMsecsPerFrame; 1112} 1113 1114status_t MediaPlayerService::AudioCache::open(uint32_t sampleRate, int channelCount, int format, int bufferCount) 1115{ 1116 LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount); 1117 if (mHeap->getHeapID() < 0) return NO_INIT; 1118 mSampleRate = sampleRate; 1119 mChannelCount = (uint16_t)channelCount; 1120 mFormat = (uint16_t)format; 1121 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1122 return NO_ERROR; 1123} 1124 1125ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size) 1126{ 1127 LOGV("write(%p, %u)", buffer, size); 1128 if ((buffer == 0) || (size == 0)) return size; 1129 1130 uint8_t* p = static_cast<uint8_t*>(mHeap->getBase()); 1131 if (p == NULL) return NO_INIT; 1132 p += mSize; 1133 LOGV("memcpy(%p, %p, %u)", p, buffer, size); 1134 if (mSize + size > mHeap->getSize()) { 1135 LOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize()); 1136 size = mHeap->getSize() - mSize; 1137 } 1138 memcpy(p, buffer, size); 1139 mSize += size; 1140 return size; 1141} 1142 1143// call with lock held 1144status_t MediaPlayerService::AudioCache::wait() 1145{ 1146 Mutex::Autolock lock(mLock); 1147 if (!mCommandComplete) { 1148 mSignal.wait(mLock); 1149 } 1150 mCommandComplete = false; 1151 1152 if (mError == NO_ERROR) { 1153 LOGV("wait - success"); 1154 } else { 1155 LOGV("wait - error"); 1156 } 1157 return mError; 1158} 1159 1160void MediaPlayerService::AudioCache::notify(void* cookie, int msg, int ext1, int ext2) 1161{ 1162 LOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2); 1163 AudioCache* p = static_cast<AudioCache*>(cookie); 1164 1165 // ignore buffering messages 1166 if (msg == MEDIA_BUFFERING_UPDATE) return; 1167 1168 // set error condition 1169 if (msg == MEDIA_ERROR) { 1170 LOGE("Error %d, %d occurred", ext1, ext2); 1171 p->mError = ext1; 1172 } 1173 1174 // wake up thread 1175 LOGV("wakeup thread"); 1176 p->mCommandComplete = true; 1177 p->mSignal.signal(); 1178} 1179 1180}; // namespace android 1181