MediaPlayerService.cpp revision cf7b9c7aae758ac0b99833915053c63c2ac46e09
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 sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid); 232 wp<MediaRecorderClient> w = recorder; 233 Mutex::Autolock lock(mLock); 234 mMediaRecorderClients.add(w); 235 LOGV("Create new media recorder client from pid %d", pid); 236 return recorder; 237} 238 239void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client) 240{ 241 Mutex::Autolock lock(mLock); 242 mMediaRecorderClients.remove(client); 243 LOGV("Delete media recorder client"); 244} 245 246sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever(pid_t pid) 247{ 248 sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid); 249 LOGV("Create new media retriever from pid %d", pid); 250 return retriever; 251} 252 253sp<IMediaPlayer> MediaPlayerService::create( 254 pid_t pid, const sp<IMediaPlayerClient>& client, const char* url, 255 const KeyedVector<String8, String8> *headers) 256{ 257 int32_t connId = android_atomic_inc(&mNextConnId); 258 sp<Client> c = new Client(this, pid, connId, client); 259 LOGV("Create new client(%d) from pid %d, url=%s, connId=%d", connId, pid, url, connId); 260 if (NO_ERROR != c->setDataSource(url, headers)) 261 { 262 c.clear(); 263 return c; 264 } 265 wp<Client> w = c; 266 Mutex::Autolock lock(mLock); 267 mClients.add(w); 268 return c; 269} 270 271sp<IMediaPlayer> MediaPlayerService::create(pid_t pid, const sp<IMediaPlayerClient>& client, 272 int fd, int64_t offset, int64_t length) 273{ 274 int32_t connId = android_atomic_inc(&mNextConnId); 275 sp<Client> c = new Client(this, pid, connId, client); 276 LOGV("Create new client(%d) from pid %d, fd=%d, offset=%lld, length=%lld", 277 connId, pid, fd, offset, length); 278 if (NO_ERROR != c->setDataSource(fd, offset, length)) { 279 c.clear(); 280 } else { 281 wp<Client> w = c; 282 Mutex::Autolock lock(mLock); 283 mClients.add(w); 284 } 285 ::close(fd); 286 return c; 287} 288 289sp<IOMX> MediaPlayerService::getOMX() { 290 Mutex::Autolock autoLock(mLock); 291 292 if (mOMX.get() == NULL) { 293 mOMX = new OMX; 294 } 295 296 return mOMX; 297} 298 299status_t MediaPlayerService::AudioCache::dump(int fd, const Vector<String16>& args) const 300{ 301 const size_t SIZE = 256; 302 char buffer[SIZE]; 303 String8 result; 304 305 result.append(" AudioCache\n"); 306 if (mHeap != 0) { 307 snprintf(buffer, 255, " heap base(%p), size(%d), flags(%d), device(%s)\n", 308 mHeap->getBase(), mHeap->getSize(), mHeap->getFlags(), mHeap->getDevice()); 309 result.append(buffer); 310 } 311 snprintf(buffer, 255, " msec per frame(%f), channel count(%d), format(%d), frame count(%ld)\n", 312 mMsecsPerFrame, mChannelCount, mFormat, mFrameCount); 313 result.append(buffer); 314 snprintf(buffer, 255, " sample rate(%d), size(%d), error(%d), command complete(%s)\n", 315 mSampleRate, mSize, mError, mCommandComplete?"true":"false"); 316 result.append(buffer); 317 ::write(fd, result.string(), result.size()); 318 return NO_ERROR; 319} 320 321status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const 322{ 323 const size_t SIZE = 256; 324 char buffer[SIZE]; 325 String8 result; 326 327 result.append(" AudioOutput\n"); 328 snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", 329 mStreamType, mLeftVolume, mRightVolume); 330 result.append(buffer); 331 snprintf(buffer, 255, " msec per frame(%f), latency (%d)\n", 332 mMsecsPerFrame, mLatency); 333 result.append(buffer); 334 ::write(fd, result.string(), result.size()); 335 if (mTrack != 0) { 336 mTrack->dump(fd, args); 337 } 338 return NO_ERROR; 339} 340 341status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) const 342{ 343 const size_t SIZE = 256; 344 char buffer[SIZE]; 345 String8 result; 346 result.append(" Client\n"); 347 snprintf(buffer, 255, " pid(%d), connId(%d), status(%d), looping(%s)\n", 348 mPid, mConnId, mStatus, mLoop?"true": "false"); 349 result.append(buffer); 350 write(fd, result.string(), result.size()); 351 if (mAudioOutput != 0) { 352 mAudioOutput->dump(fd, args); 353 } 354 write(fd, "\n", 1); 355 return NO_ERROR; 356} 357 358static int myTid() { 359#ifdef HAVE_GETTID 360 return gettid(); 361#else 362 return getpid(); 363#endif 364} 365 366#if defined(__arm__) 367extern "C" void get_malloc_leak_info(uint8_t** info, size_t* overallSize, 368 size_t* infoSize, size_t* totalMemory, size_t* backtraceSize); 369extern "C" void free_malloc_leak_info(uint8_t* info); 370 371// Use the String-class below instead of String8 to allocate all memory 372// beforehand and not reenter the heap while we are examining it... 373struct MyString8 { 374 static const size_t MAX_SIZE = 256 * 1024; 375 376 MyString8() 377 : mPtr((char *)malloc(MAX_SIZE)) { 378 *mPtr = '\0'; 379 } 380 381 ~MyString8() { 382 free(mPtr); 383 } 384 385 void append(const char *s) { 386 strcat(mPtr, s); 387 } 388 389 const char *string() const { 390 return mPtr; 391 } 392 393 size_t size() const { 394 return strlen(mPtr); 395 } 396 397private: 398 char *mPtr; 399 400 MyString8(const MyString8 &); 401 MyString8 &operator=(const MyString8 &); 402}; 403 404void memStatus(int fd, const Vector<String16>& args) 405{ 406 const size_t SIZE = 256; 407 char buffer[SIZE]; 408 MyString8 result; 409 410 typedef struct { 411 size_t size; 412 size_t dups; 413 intptr_t * backtrace; 414 } AllocEntry; 415 416 uint8_t *info = NULL; 417 size_t overallSize = 0; 418 size_t infoSize = 0; 419 size_t totalMemory = 0; 420 size_t backtraceSize = 0; 421 422 get_malloc_leak_info(&info, &overallSize, &infoSize, &totalMemory, &backtraceSize); 423 if (info) { 424 uint8_t *ptr = info; 425 size_t count = overallSize / infoSize; 426 427 snprintf(buffer, SIZE, " Allocation count %i\n", count); 428 result.append(buffer); 429 snprintf(buffer, SIZE, " Total memory %i\n", totalMemory); 430 result.append(buffer); 431 432 AllocEntry * entries = new AllocEntry[count]; 433 434 for (size_t i = 0; i < count; i++) { 435 // Each entry should be size_t, size_t, intptr_t[backtraceSize] 436 AllocEntry *e = &entries[i]; 437 438 e->size = *reinterpret_cast<size_t *>(ptr); 439 ptr += sizeof(size_t); 440 441 e->dups = *reinterpret_cast<size_t *>(ptr); 442 ptr += sizeof(size_t); 443 444 e->backtrace = reinterpret_cast<intptr_t *>(ptr); 445 ptr += sizeof(intptr_t) * backtraceSize; 446 } 447 448 // Now we need to sort the entries. They come sorted by size but 449 // not by stack trace which causes problems using diff. 450 bool moved; 451 do { 452 moved = false; 453 for (size_t i = 0; i < (count - 1); i++) { 454 AllocEntry *e1 = &entries[i]; 455 AllocEntry *e2 = &entries[i+1]; 456 457 bool swap = e1->size < e2->size; 458 if (e1->size == e2->size) { 459 for(size_t j = 0; j < backtraceSize; j++) { 460 if (e1->backtrace[j] == e2->backtrace[j]) { 461 continue; 462 } 463 swap = e1->backtrace[j] < e2->backtrace[j]; 464 break; 465 } 466 } 467 if (swap) { 468 AllocEntry t = entries[i]; 469 entries[i] = entries[i+1]; 470 entries[i+1] = t; 471 moved = true; 472 } 473 } 474 } while (moved); 475 476 for (size_t i = 0; i < count; i++) { 477 AllocEntry *e = &entries[i]; 478 479 snprintf(buffer, SIZE, "size %8i, dup %4i, ", e->size, e->dups); 480 result.append(buffer); 481 for (size_t ct = 0; (ct < backtraceSize) && e->backtrace[ct]; ct++) { 482 if (ct) { 483 result.append(", "); 484 } 485 snprintf(buffer, SIZE, "0x%08x", e->backtrace[ct]); 486 result.append(buffer); 487 } 488 result.append("\n"); 489 } 490 491 delete[] entries; 492 free_malloc_leak_info(info); 493 } 494 495 write(fd, result.string(), result.size()); 496} 497#endif 498 499status_t MediaPlayerService::dump(int fd, const Vector<String16>& args) 500{ 501 const size_t SIZE = 256; 502 char buffer[SIZE]; 503 String8 result; 504 if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 505 snprintf(buffer, SIZE, "Permission Denial: " 506 "can't dump MediaPlayerService from pid=%d, uid=%d\n", 507 IPCThreadState::self()->getCallingPid(), 508 IPCThreadState::self()->getCallingUid()); 509 result.append(buffer); 510 } else { 511 Mutex::Autolock lock(mLock); 512 for (int i = 0, n = mClients.size(); i < n; ++i) { 513 sp<Client> c = mClients[i].promote(); 514 if (c != 0) c->dump(fd, args); 515 } 516 for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) { 517 result.append(" MediaRecorderClient\n"); 518 sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote(); 519 snprintf(buffer, 255, " pid(%d)\n\n", c->mPid); 520 result.append(buffer); 521 } 522 523 result.append(" Files opened and/or mapped:\n"); 524 snprintf(buffer, SIZE, "/proc/%d/maps", myTid()); 525 FILE *f = fopen(buffer, "r"); 526 if (f) { 527 while (!feof(f)) { 528 fgets(buffer, SIZE, f); 529 if (strstr(buffer, " /sdcard/") || 530 strstr(buffer, " /system/sounds/") || 531 strstr(buffer, " /system/media/")) { 532 result.append(" "); 533 result.append(buffer); 534 } 535 } 536 fclose(f); 537 } else { 538 result.append("couldn't open "); 539 result.append(buffer); 540 result.append("\n"); 541 } 542 543 snprintf(buffer, SIZE, "/proc/%d/fd", myTid()); 544 DIR *d = opendir(buffer); 545 if (d) { 546 struct dirent *ent; 547 while((ent = readdir(d)) != NULL) { 548 if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) { 549 snprintf(buffer, SIZE, "/proc/%d/fd/%s", myTid(), ent->d_name); 550 struct stat s; 551 if (lstat(buffer, &s) == 0) { 552 if ((s.st_mode & S_IFMT) == S_IFLNK) { 553 char linkto[256]; 554 int len = readlink(buffer, linkto, sizeof(linkto)); 555 if(len > 0) { 556 if(len > 255) { 557 linkto[252] = '.'; 558 linkto[253] = '.'; 559 linkto[254] = '.'; 560 linkto[255] = 0; 561 } else { 562 linkto[len] = 0; 563 } 564 if (strstr(linkto, "/sdcard/") == linkto || 565 strstr(linkto, "/system/sounds/") == linkto || 566 strstr(linkto, "/system/media/") == linkto) { 567 result.append(" "); 568 result.append(buffer); 569 result.append(" -> "); 570 result.append(linkto); 571 result.append("\n"); 572 } 573 } 574 } else { 575 result.append(" unexpected type for "); 576 result.append(buffer); 577 result.append("\n"); 578 } 579 } 580 } 581 } 582 closedir(d); 583 } else { 584 result.append("couldn't open "); 585 result.append(buffer); 586 result.append("\n"); 587 } 588 589#if defined(__arm__) 590 bool dumpMem = false; 591 for (size_t i = 0; i < args.size(); i++) { 592 if (args[i] == String16("-m")) { 593 dumpMem = true; 594 } 595 } 596 if (dumpMem) { 597 memStatus(fd, args); 598 } 599#endif 600 } 601 write(fd, result.string(), result.size()); 602 return NO_ERROR; 603} 604 605void MediaPlayerService::removeClient(wp<Client> client) 606{ 607 Mutex::Autolock lock(mLock); 608 mClients.remove(client); 609} 610 611MediaPlayerService::Client::Client(const sp<MediaPlayerService>& service, pid_t pid, 612 int32_t connId, const sp<IMediaPlayerClient>& client) 613{ 614 LOGV("Client(%d) constructor", connId); 615 mPid = pid; 616 mConnId = connId; 617 mService = service; 618 mClient = client; 619 mLoop = false; 620 mStatus = NO_INIT; 621#if CALLBACK_ANTAGONIZER 622 LOGD("create Antagonizer"); 623 mAntagonizer = new Antagonizer(notify, this); 624#endif 625} 626 627MediaPlayerService::Client::~Client() 628{ 629 LOGV("Client(%d) destructor pid = %d", mConnId, mPid); 630 mAudioOutput.clear(); 631 wp<Client> client(this); 632 disconnect(); 633 mService->removeClient(client); 634} 635 636void MediaPlayerService::Client::disconnect() 637{ 638 LOGV("disconnect(%d) from pid %d", mConnId, mPid); 639 // grab local reference and clear main reference to prevent future 640 // access to object 641 sp<MediaPlayerBase> p; 642 { 643 Mutex::Autolock l(mLock); 644 p = mPlayer; 645 } 646 mClient.clear(); 647 648 mPlayer.clear(); 649 650 // clear the notification to prevent callbacks to dead client 651 // and reset the player. We assume the player will serialize 652 // access to itself if necessary. 653 if (p != 0) { 654 p->setNotifyCallback(0, 0); 655#if CALLBACK_ANTAGONIZER 656 LOGD("kill Antagonizer"); 657 mAntagonizer->kill(); 658#endif 659 p->reset(); 660 } 661 662 IPCThreadState::self()->flushCommands(); 663} 664 665static player_type getDefaultPlayerType() { 666#if BUILD_WITH_FULL_STAGEFRIGHT 667 char value[PROPERTY_VALUE_MAX]; 668 if (property_get("media.stagefright.enable-player", value, NULL) 669 && (!strcmp(value, "1") || !strcasecmp(value, "true"))) { 670 return STAGEFRIGHT_PLAYER; 671 } 672#endif 673 674 return PV_PLAYER; 675} 676 677// By default we use the VORBIS_PLAYER for vorbis playback (duh!), 678// but if the magic property is set we will use our new experimental 679// stagefright code instead. 680static player_type OverrideStagefrightForVorbis(player_type player) { 681 if (player != VORBIS_PLAYER) { 682 return player; 683 } 684 685#if BUILD_WITH_FULL_STAGEFRIGHT 686 char value[PROPERTY_VALUE_MAX]; 687 if (property_get("media.stagefright.enable-vorbis", value, NULL) 688 && (!strcmp(value, "1") || !strcmp(value, "true"))) { 689 return STAGEFRIGHT_PLAYER; 690 } 691#endif 692 693 return VORBIS_PLAYER; 694} 695 696 697player_type getPlayerType(int fd, int64_t offset, int64_t length) 698{ 699 char buf[20]; 700 lseek(fd, offset, SEEK_SET); 701 read(fd, buf, sizeof(buf)); 702 lseek(fd, offset, SEEK_SET); 703 704 long ident = *((long*)buf); 705 706 // Ogg vorbis? 707 if (ident == 0x5367674f) // 'OggS' 708 return OverrideStagefrightForVorbis(VORBIS_PLAYER); 709 710#ifndef NO_OPENCORE 711 if (ident == 0x75b22630) { 712 // The magic number for .asf files, i.e. wmv and wma content. 713 // These are not currently supported through stagefright. 714 return PV_PLAYER; 715 } 716#endif 717 718 // Some kind of MIDI? 719 EAS_DATA_HANDLE easdata; 720 if (EAS_Init(&easdata) == EAS_SUCCESS) { 721 EAS_FILE locator; 722 locator.path = NULL; 723 locator.fd = fd; 724 locator.offset = offset; 725 locator.length = length; 726 EAS_HANDLE eashandle; 727 if (EAS_OpenFile(easdata, &locator, &eashandle) == EAS_SUCCESS) { 728 EAS_CloseFile(easdata, eashandle); 729 EAS_Shutdown(easdata); 730 return SONIVOX_PLAYER; 731 } 732 EAS_Shutdown(easdata); 733 } 734 735 return getDefaultPlayerType(); 736} 737 738player_type getPlayerType(const char* url) 739{ 740 if (TestPlayerStub::canBeUsed(url)) { 741 return TEST_PLAYER; 742 } 743 744 bool useStagefrightForHTTP = false; 745 char value[PROPERTY_VALUE_MAX]; 746 if (property_get("media.stagefright.enable-http", value, NULL) 747 && (!strcmp(value, "1") || !strcasecmp(value, "true"))) { 748 useStagefrightForHTTP = true; 749 } 750 751 // use MidiFile for MIDI extensions 752 int lenURL = strlen(url); 753 for (int i = 0; i < NELEM(FILE_EXTS); ++i) { 754 int len = strlen(FILE_EXTS[i].extension); 755 int start = lenURL - len; 756 if (start > 0) { 757 if (!strncasecmp(url + start, FILE_EXTS[i].extension, len)) { 758 if (FILE_EXTS[i].playertype == VORBIS_PLAYER 759 && !strncasecmp(url, "http://", 7) 760 && useStagefrightForHTTP) { 761 return STAGEFRIGHT_PLAYER; 762 } 763 return OverrideStagefrightForVorbis(FILE_EXTS[i].playertype); 764 } 765 } 766 } 767 768 if (!strncasecmp(url, "http://", 7)) { 769 if (!useStagefrightForHTTP) { 770 return PV_PLAYER; 771 } 772 } 773 774 if (!strncasecmp(url, "rtsp://", 7)) { 775 char value[PROPERTY_VALUE_MAX]; 776 if (!property_get("media.stagefright.enable-rtsp", value, NULL) 777 || (strcmp(value, "1") && strcasecmp(value, "true"))) { 778 // For now, we're going to use PV for rtsp-based playback 779 // by default until we can clear up a few more issues. 780 return PV_PLAYER; 781 } 782 } 783 784 return getDefaultPlayerType(); 785} 786 787static sp<MediaPlayerBase> createPlayer(player_type playerType, void* cookie, 788 notify_callback_f notifyFunc) 789{ 790 sp<MediaPlayerBase> p; 791 switch (playerType) { 792#ifndef NO_OPENCORE 793 case PV_PLAYER: 794 LOGV(" create PVPlayer"); 795 p = new PVPlayer(); 796 break; 797#endif 798 case SONIVOX_PLAYER: 799 LOGV(" create MidiFile"); 800 p = new MidiFile(); 801 break; 802 case VORBIS_PLAYER: 803 LOGV(" create VorbisPlayer"); 804 p = new VorbisPlayer(); 805 break; 806#if BUILD_WITH_FULL_STAGEFRIGHT 807 case STAGEFRIGHT_PLAYER: 808 LOGV(" create StagefrightPlayer"); 809 p = new StagefrightPlayer; 810 break; 811#endif 812 case TEST_PLAYER: 813 LOGV("Create Test Player stub"); 814 p = new TestPlayerStub(); 815 break; 816 } 817 if (p != NULL) { 818 if (p->initCheck() == NO_ERROR) { 819 p->setNotifyCallback(cookie, notifyFunc); 820 } else { 821 p.clear(); 822 } 823 } 824 if (p == NULL) { 825 LOGE("Failed to create player object"); 826 } 827 return p; 828} 829 830sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) 831{ 832 // determine if we have the right player type 833 sp<MediaPlayerBase> p = mPlayer; 834 if ((p != NULL) && (p->playerType() != playerType)) { 835 LOGV("delete player"); 836 p.clear(); 837 } 838 if (p == NULL) { 839 p = android::createPlayer(playerType, this, notify); 840 } 841 return p; 842} 843 844status_t MediaPlayerService::Client::setDataSource( 845 const char *url, const KeyedVector<String8, String8> *headers) 846{ 847 LOGV("setDataSource(%s)", url); 848 if (url == NULL) 849 return UNKNOWN_ERROR; 850 851 if (strncmp(url, "content://", 10) == 0) { 852 // get a filedescriptor for the content Uri and 853 // pass it to the setDataSource(fd) method 854 855 String16 url16(url); 856 int fd = android::openContentProviderFile(url16); 857 if (fd < 0) 858 { 859 LOGE("Couldn't open fd for %s", url); 860 return UNKNOWN_ERROR; 861 } 862 setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus 863 close(fd); 864 return mStatus; 865 } else { 866 player_type playerType = getPlayerType(url); 867 LOGV("player type = %d", playerType); 868 869 // create the right type of player 870 sp<MediaPlayerBase> p = createPlayer(playerType); 871 if (p == NULL) return NO_INIT; 872 873 if (!p->hardwareOutput()) { 874 mAudioOutput = new AudioOutput(); 875 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 876 } 877 878 // now set data source 879 LOGV(" setDataSource"); 880 mStatus = p->setDataSource(url, headers); 881 if (mStatus == NO_ERROR) { 882 mPlayer = p; 883 } else { 884 LOGE(" error: %d", mStatus); 885 } 886 return mStatus; 887 } 888} 889 890status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) 891{ 892 LOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length); 893 struct stat sb; 894 int ret = fstat(fd, &sb); 895 if (ret != 0) { 896 LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 897 return UNKNOWN_ERROR; 898 } 899 900 LOGV("st_dev = %llu", sb.st_dev); 901 LOGV("st_mode = %u", sb.st_mode); 902 LOGV("st_uid = %lu", sb.st_uid); 903 LOGV("st_gid = %lu", sb.st_gid); 904 LOGV("st_size = %llu", sb.st_size); 905 906 if (offset >= sb.st_size) { 907 LOGE("offset error"); 908 ::close(fd); 909 return UNKNOWN_ERROR; 910 } 911 if (offset + length > sb.st_size) { 912 length = sb.st_size - offset; 913 LOGV("calculated length = %lld", length); 914 } 915 916 player_type playerType = getPlayerType(fd, offset, length); 917 LOGV("player type = %d", playerType); 918 919 // create the right type of player 920 sp<MediaPlayerBase> p = createPlayer(playerType); 921 if (p == NULL) return NO_INIT; 922 923 if (!p->hardwareOutput()) { 924 mAudioOutput = new AudioOutput(); 925 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); 926 } 927 928 // now set data source 929 mStatus = p->setDataSource(fd, offset, length); 930 if (mStatus == NO_ERROR) mPlayer = p; 931 return mStatus; 932} 933 934status_t MediaPlayerService::Client::setVideoSurface(const sp<ISurface>& surface) 935{ 936 LOGV("[%d] setVideoSurface(%p)", mConnId, surface.get()); 937 sp<MediaPlayerBase> p = getPlayer(); 938 if (p == 0) return UNKNOWN_ERROR; 939 return p->setVideoSurface(surface); 940} 941 942status_t MediaPlayerService::Client::invoke(const Parcel& request, 943 Parcel *reply) 944{ 945 sp<MediaPlayerBase> p = getPlayer(); 946 if (p == NULL) return UNKNOWN_ERROR; 947 return p->invoke(request, reply); 948} 949 950// This call doesn't need to access the native player. 951status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter) 952{ 953 status_t status; 954 media::Metadata::Filter allow, drop; 955 956 if (unmarshallFilter(filter, &allow, &status) && 957 unmarshallFilter(filter, &drop, &status)) { 958 Mutex::Autolock lock(mLock); 959 960 mMetadataAllow = allow; 961 mMetadataDrop = drop; 962 } 963 return status; 964} 965 966status_t MediaPlayerService::Client::getMetadata( 967 bool update_only, bool apply_filter, Parcel *reply) 968{ 969 sp<MediaPlayerBase> player = getPlayer(); 970 if (player == 0) return UNKNOWN_ERROR; 971 972 status_t status; 973 // Placeholder for the return code, updated by the caller. 974 reply->writeInt32(-1); 975 976 media::Metadata::Filter ids; 977 978 // We don't block notifications while we fetch the data. We clear 979 // mMetadataUpdated first so we don't lose notifications happening 980 // during the rest of this call. 981 { 982 Mutex::Autolock lock(mLock); 983 if (update_only) { 984 ids = mMetadataUpdated; 985 } 986 mMetadataUpdated.clear(); 987 } 988 989 media::Metadata metadata(reply); 990 991 metadata.appendHeader(); 992 status = player->getMetadata(ids, reply); 993 994 if (status != OK) { 995 metadata.resetParcel(); 996 LOGE("getMetadata failed %d", status); 997 return status; 998 } 999 1000 // FIXME: Implement filtering on the result. Not critical since 1001 // filtering takes place on the update notifications already. This 1002 // would be when all the metadata are fetch and a filter is set. 1003 1004 // Everything is fine, update the metadata length. 1005 metadata.updateLength(); 1006 return OK; 1007} 1008 1009status_t MediaPlayerService::Client::suspend() { 1010 sp<MediaPlayerBase> p = getPlayer(); 1011 if (p == 0) return UNKNOWN_ERROR; 1012 1013 return p->suspend(); 1014} 1015 1016status_t MediaPlayerService::Client::resume() { 1017 sp<MediaPlayerBase> p = getPlayer(); 1018 if (p == 0) return UNKNOWN_ERROR; 1019 1020 return p->resume(); 1021} 1022 1023status_t MediaPlayerService::Client::prepareAsync() 1024{ 1025 LOGV("[%d] prepareAsync", mConnId); 1026 sp<MediaPlayerBase> p = getPlayer(); 1027 if (p == 0) return UNKNOWN_ERROR; 1028 status_t ret = p->prepareAsync(); 1029#if CALLBACK_ANTAGONIZER 1030 LOGD("start Antagonizer"); 1031 if (ret == NO_ERROR) mAntagonizer->start(); 1032#endif 1033 return ret; 1034} 1035 1036status_t MediaPlayerService::Client::start() 1037{ 1038 LOGV("[%d] start", mConnId); 1039 sp<MediaPlayerBase> p = getPlayer(); 1040 if (p == 0) return UNKNOWN_ERROR; 1041 p->setLooping(mLoop); 1042 return p->start(); 1043} 1044 1045status_t MediaPlayerService::Client::stop() 1046{ 1047 LOGV("[%d] stop", mConnId); 1048 sp<MediaPlayerBase> p = getPlayer(); 1049 if (p == 0) return UNKNOWN_ERROR; 1050 return p->stop(); 1051} 1052 1053status_t MediaPlayerService::Client::pause() 1054{ 1055 LOGV("[%d] pause", mConnId); 1056 sp<MediaPlayerBase> p = getPlayer(); 1057 if (p == 0) return UNKNOWN_ERROR; 1058 return p->pause(); 1059} 1060 1061status_t MediaPlayerService::Client::isPlaying(bool* state) 1062{ 1063 *state = false; 1064 sp<MediaPlayerBase> p = getPlayer(); 1065 if (p == 0) return UNKNOWN_ERROR; 1066 *state = p->isPlaying(); 1067 LOGV("[%d] isPlaying: %d", mConnId, *state); 1068 return NO_ERROR; 1069} 1070 1071status_t MediaPlayerService::Client::getCurrentPosition(int *msec) 1072{ 1073 LOGV("getCurrentPosition"); 1074 sp<MediaPlayerBase> p = getPlayer(); 1075 if (p == 0) return UNKNOWN_ERROR; 1076 status_t ret = p->getCurrentPosition(msec); 1077 if (ret == NO_ERROR) { 1078 LOGV("[%d] getCurrentPosition = %d", mConnId, *msec); 1079 } else { 1080 LOGE("getCurrentPosition returned %d", ret); 1081 } 1082 return ret; 1083} 1084 1085status_t MediaPlayerService::Client::getDuration(int *msec) 1086{ 1087 LOGV("getDuration"); 1088 sp<MediaPlayerBase> p = getPlayer(); 1089 if (p == 0) return UNKNOWN_ERROR; 1090 status_t ret = p->getDuration(msec); 1091 if (ret == NO_ERROR) { 1092 LOGV("[%d] getDuration = %d", mConnId, *msec); 1093 } else { 1094 LOGE("getDuration returned %d", ret); 1095 } 1096 return ret; 1097} 1098 1099status_t MediaPlayerService::Client::seekTo(int msec) 1100{ 1101 LOGV("[%d] seekTo(%d)", mConnId, msec); 1102 sp<MediaPlayerBase> p = getPlayer(); 1103 if (p == 0) return UNKNOWN_ERROR; 1104 return p->seekTo(msec); 1105} 1106 1107status_t MediaPlayerService::Client::reset() 1108{ 1109 LOGV("[%d] reset", mConnId); 1110 sp<MediaPlayerBase> p = getPlayer(); 1111 if (p == 0) return UNKNOWN_ERROR; 1112 return p->reset(); 1113} 1114 1115status_t MediaPlayerService::Client::setAudioStreamType(int type) 1116{ 1117 LOGV("[%d] setAudioStreamType(%d)", mConnId, type); 1118 // TODO: for hardware output, call player instead 1119 Mutex::Autolock l(mLock); 1120 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); 1121 return NO_ERROR; 1122} 1123 1124status_t MediaPlayerService::Client::setLooping(int loop) 1125{ 1126 LOGV("[%d] setLooping(%d)", mConnId, loop); 1127 mLoop = loop; 1128 sp<MediaPlayerBase> p = getPlayer(); 1129 if (p != 0) return p->setLooping(loop); 1130 return NO_ERROR; 1131} 1132 1133status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) 1134{ 1135 LOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); 1136 // TODO: for hardware output, call player instead 1137 Mutex::Autolock l(mLock); 1138 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); 1139 return NO_ERROR; 1140} 1141 1142 1143void MediaPlayerService::Client::notify(void* cookie, int msg, int ext1, int ext2) 1144{ 1145 Client* client = static_cast<Client*>(cookie); 1146 1147 if (MEDIA_INFO == msg && 1148 MEDIA_INFO_METADATA_UPDATE == ext1) { 1149 const media::Metadata::Type metadata_type = ext2; 1150 1151 if(client->shouldDropMetadata(metadata_type)) { 1152 return; 1153 } 1154 1155 // Update the list of metadata that have changed. getMetadata 1156 // also access mMetadataUpdated and clears it. 1157 client->addNewMetadataUpdate(metadata_type); 1158 } 1159 LOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); 1160 client->mClient->notify(msg, ext1, ext2); 1161} 1162 1163 1164bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const 1165{ 1166 Mutex::Autolock lock(mLock); 1167 1168 if (findMetadata(mMetadataDrop, code)) { 1169 return true; 1170 } 1171 1172 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) { 1173 return false; 1174 } else { 1175 return true; 1176 } 1177} 1178 1179 1180void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) { 1181 Mutex::Autolock lock(mLock); 1182 if (mMetadataUpdated.indexOf(metadata_type) < 0) { 1183 mMetadataUpdated.add(metadata_type); 1184 } 1185} 1186 1187#if CALLBACK_ANTAGONIZER 1188const int Antagonizer::interval = 10000; // 10 msecs 1189 1190Antagonizer::Antagonizer(notify_callback_f cb, void* client) : 1191 mExit(false), mActive(false), mClient(client), mCb(cb) 1192{ 1193 createThread(callbackThread, this); 1194} 1195 1196void Antagonizer::kill() 1197{ 1198 Mutex::Autolock _l(mLock); 1199 mActive = false; 1200 mExit = true; 1201 mCondition.wait(mLock); 1202} 1203 1204int Antagonizer::callbackThread(void* user) 1205{ 1206 LOGD("Antagonizer started"); 1207 Antagonizer* p = reinterpret_cast<Antagonizer*>(user); 1208 while (!p->mExit) { 1209 if (p->mActive) { 1210 LOGV("send event"); 1211 p->mCb(p->mClient, 0, 0, 0); 1212 } 1213 usleep(interval); 1214 } 1215 Mutex::Autolock _l(p->mLock); 1216 p->mCondition.signal(); 1217 LOGD("Antagonizer stopped"); 1218 return 0; 1219} 1220#endif 1221 1222static size_t kDefaultHeapSize = 1024 * 1024; // 1MB 1223 1224sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 1225{ 1226 LOGV("decode(%s)", url); 1227 sp<MemoryBase> mem; 1228 sp<MediaPlayerBase> player; 1229 1230 // Protect our precious, precious DRMd ringtones by only allowing 1231 // decoding of http, but not filesystem paths or content Uris. 1232 // If the application wants to decode those, it should open a 1233 // filedescriptor for them and use that. 1234 if (url != NULL && strncmp(url, "http://", 7) != 0) { 1235 LOGD("Can't decode %s by path, use filedescriptor instead", url); 1236 return mem; 1237 } 1238 1239 player_type playerType = getPlayerType(url); 1240 LOGV("player type = %d", playerType); 1241 1242 // create the right type of player 1243 sp<AudioCache> cache = new AudioCache(url); 1244 player = android::createPlayer(playerType, cache.get(), cache->notify); 1245 if (player == NULL) goto Exit; 1246 if (player->hardwareOutput()) goto Exit; 1247 1248 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1249 1250 // set data source 1251 if (player->setDataSource(url) != NO_ERROR) goto Exit; 1252 1253 LOGV("prepare"); 1254 player->prepareAsync(); 1255 1256 LOGV("wait for prepare"); 1257 if (cache->wait() != NO_ERROR) goto Exit; 1258 1259 LOGV("start"); 1260 player->start(); 1261 1262 LOGV("wait for playback complete"); 1263 if (cache->wait() != NO_ERROR) goto Exit; 1264 1265 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1266 *pSampleRate = cache->sampleRate(); 1267 *pNumChannels = cache->channelCount(); 1268 *pFormat = cache->format(); 1269 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1270 1271Exit: 1272 if (player != 0) player->reset(); 1273 return mem; 1274} 1275 1276sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) 1277{ 1278 LOGV("decode(%d, %lld, %lld)", fd, offset, length); 1279 sp<MemoryBase> mem; 1280 sp<MediaPlayerBase> player; 1281 1282 player_type playerType = getPlayerType(fd, offset, length); 1283 LOGV("player type = %d", playerType); 1284 1285 // create the right type of player 1286 sp<AudioCache> cache = new AudioCache("decode_fd"); 1287 player = android::createPlayer(playerType, cache.get(), cache->notify); 1288 if (player == NULL) goto Exit; 1289 if (player->hardwareOutput()) goto Exit; 1290 1291 static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); 1292 1293 // set data source 1294 if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit; 1295 1296 LOGV("prepare"); 1297 player->prepareAsync(); 1298 1299 LOGV("wait for prepare"); 1300 if (cache->wait() != NO_ERROR) goto Exit; 1301 1302 LOGV("start"); 1303 player->start(); 1304 1305 LOGV("wait for playback complete"); 1306 if (cache->wait() != NO_ERROR) goto Exit; 1307 1308 mem = new MemoryBase(cache->getHeap(), 0, cache->size()); 1309 *pSampleRate = cache->sampleRate(); 1310 *pNumChannels = cache->channelCount(); 1311 *pFormat = cache->format(); 1312 LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); 1313 1314Exit: 1315 if (player != 0) player->reset(); 1316 ::close(fd); 1317 return mem; 1318} 1319 1320/* 1321 * Avert your eyes, ugly hack ahead. 1322 * The following is to support music visualizations. 1323 */ 1324 1325static const int NUMVIZBUF = 32; 1326static const int VIZBUFFRAMES = 1024; 1327static const int BUFTIMEMSEC = NUMVIZBUF * VIZBUFFRAMES * 1000 / 44100; 1328static const int TOTALBUFTIMEMSEC = NUMVIZBUF * BUFTIMEMSEC; 1329 1330static bool gotMem = false; 1331static sp<MemoryHeapBase> heap; 1332static sp<MemoryBase> mem[NUMVIZBUF]; 1333static uint64_t endTime; 1334static uint64_t lastReadTime; 1335static uint64_t lastWriteTime; 1336static int writeIdx = 0; 1337 1338static void allocVizBufs() { 1339 if (!gotMem) { 1340 heap = new MemoryHeapBase(NUMVIZBUF * VIZBUFFRAMES * 2, 0, "snooper"); 1341 for (int i=0;i<NUMVIZBUF;i++) { 1342 mem[i] = new MemoryBase(heap, VIZBUFFRAMES * 2 * i, VIZBUFFRAMES * 2); 1343 } 1344 endTime = 0; 1345 gotMem = true; 1346 } 1347} 1348 1349 1350/* 1351 * Get a buffer of audio data that is about to be played. 1352 * We don't synchronize this because in practice the writer 1353 * is ahead of the reader, and even if we did happen to catch 1354 * a buffer while it's being written, it's just a visualization, 1355 * so no harm done. 1356 */ 1357static sp<MemoryBase> getVizBuffer() { 1358 1359 allocVizBufs(); 1360 1361 lastReadTime = uptimeMillis(); 1362 1363 // if there is no recent buffer (yet), just return empty handed 1364 if (lastWriteTime + TOTALBUFTIMEMSEC < lastReadTime) { 1365 //LOGI("@@@@ no audio data to look at yet: %d + %d < %d", (int)lastWriteTime, TOTALBUFTIMEMSEC, (int)lastReadTime); 1366 return NULL; 1367 } 1368 1369 int timedelta = endTime - lastReadTime; 1370 if (timedelta < 0) timedelta = 0; 1371 int framedelta = timedelta * 44100 / 1000; 1372 int headIdx = (writeIdx - framedelta) / VIZBUFFRAMES - 1; 1373 while (headIdx < 0) { 1374 headIdx += NUMVIZBUF; 1375 } 1376 return mem[headIdx]; 1377} 1378 1379// Append the data to the vizualization buffer 1380static void makeVizBuffers(const char *data, int len, uint64_t time) { 1381 1382 allocVizBufs(); 1383 1384 uint64_t startTime = time; 1385 const int frameSize = 4; // 16 bit stereo sample is 4 bytes 1386 int offset = writeIdx; 1387 int maxoff = heap->getSize() / 2; // in shorts 1388 short *base = (short*)heap->getBase(); 1389 short *src = (short*)data; 1390 while (len > 0) { 1391 1392 // Degrade quality by mixing to mono and clearing the lowest 3 bits. 1393 // This should still be good enough for a visualization 1394 base[offset++] = ((int(src[0]) + int(src[1])) >> 1) & ~0x7; 1395 src += 2; 1396 len -= frameSize; 1397 if (offset >= maxoff) { 1398 offset = 0; 1399 } 1400 } 1401 writeIdx = offset; 1402 endTime = time + (len / frameSize) / 44; 1403 //LOGI("@@@ stored buffers from %d to %d", uint32_t(startTime), uint32_t(time)); 1404} 1405 1406sp<IMemory> MediaPlayerService::snoop() 1407{ 1408 sp<MemoryBase> mem = getVizBuffer(); 1409 return mem; 1410} 1411 1412 1413#undef LOG_TAG 1414#define LOG_TAG "AudioSink" 1415MediaPlayerService::AudioOutput::AudioOutput() 1416 : mCallback(NULL), 1417 mCallbackCookie(NULL) { 1418 mTrack = 0; 1419 mStreamType = AudioSystem::MUSIC; 1420 mLeftVolume = 1.0; 1421 mRightVolume = 1.0; 1422 mLatency = 0; 1423 mMsecsPerFrame = 0; 1424 mNumFramesWritten = 0; 1425 setMinBufferCount(); 1426} 1427 1428MediaPlayerService::AudioOutput::~AudioOutput() 1429{ 1430 close(); 1431} 1432 1433void MediaPlayerService::AudioOutput::setMinBufferCount() 1434{ 1435 char value[PROPERTY_VALUE_MAX]; 1436 if (property_get("ro.kernel.qemu", value, 0)) { 1437 mIsOnEmulator = true; 1438 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator 1439 } 1440} 1441 1442bool MediaPlayerService::AudioOutput::isOnEmulator() 1443{ 1444 setMinBufferCount(); 1445 return mIsOnEmulator; 1446} 1447 1448int MediaPlayerService::AudioOutput::getMinBufferCount() 1449{ 1450 setMinBufferCount(); 1451 return mMinBufferCount; 1452} 1453 1454ssize_t MediaPlayerService::AudioOutput::bufferSize() const 1455{ 1456 if (mTrack == 0) return NO_INIT; 1457 return mTrack->frameCount() * frameSize(); 1458} 1459 1460ssize_t MediaPlayerService::AudioOutput::frameCount() const 1461{ 1462 if (mTrack == 0) return NO_INIT; 1463 return mTrack->frameCount(); 1464} 1465 1466ssize_t MediaPlayerService::AudioOutput::channelCount() const 1467{ 1468 if (mTrack == 0) return NO_INIT; 1469 return mTrack->channelCount(); 1470} 1471 1472ssize_t MediaPlayerService::AudioOutput::frameSize() const 1473{ 1474 if (mTrack == 0) return NO_INIT; 1475 return mTrack->frameSize(); 1476} 1477 1478uint32_t MediaPlayerService::AudioOutput::latency () const 1479{ 1480 return mLatency; 1481} 1482 1483float MediaPlayerService::AudioOutput::msecsPerFrame() const 1484{ 1485 return mMsecsPerFrame; 1486} 1487 1488status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) 1489{ 1490 if (mTrack == 0) return NO_INIT; 1491 return mTrack->getPosition(position); 1492} 1493 1494status_t MediaPlayerService::AudioOutput::open( 1495 uint32_t sampleRate, int channelCount, int format, int bufferCount, 1496 AudioCallback cb, void *cookie) 1497{ 1498 mCallback = cb; 1499 mCallbackCookie = cookie; 1500 1501 // Check argument "bufferCount" against the mininum buffer count 1502 if (bufferCount < mMinBufferCount) { 1503 LOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount); 1504 bufferCount = mMinBufferCount; 1505 1506 } 1507 LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount); 1508 if (mTrack) close(); 1509 int afSampleRate; 1510 int afFrameCount; 1511 int frameCount; 1512 1513 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) { 1514 return NO_INIT; 1515 } 1516 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) { 1517 return NO_INIT; 1518 } 1519 1520 frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate; 1521 1522 AudioTrack *t; 1523 if (mCallback != NULL) { 1524 t = new AudioTrack( 1525 mStreamType, 1526 sampleRate, 1527 format, 1528 (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO, 1529 frameCount, 1530 0 /* flags */, 1531 CallbackWrapper, 1532 this); 1533 } else { 1534 t = new AudioTrack( 1535 mStreamType, 1536 sampleRate, 1537 format, 1538 (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO, 1539 frameCount); 1540 } 1541 1542 if ((t == 0) || (t->initCheck() != NO_ERROR)) { 1543 LOGE("Unable to create audio track"); 1544 delete t; 1545 return NO_INIT; 1546 } 1547 1548 LOGV("setVolume"); 1549 t->setVolume(mLeftVolume, mRightVolume); 1550 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1551 mLatency = t->latency(); 1552 mTrack = t; 1553 return NO_ERROR; 1554} 1555 1556void MediaPlayerService::AudioOutput::start() 1557{ 1558 LOGV("start"); 1559 if (mTrack) { 1560 mTrack->setVolume(mLeftVolume, mRightVolume); 1561 mTrack->start(); 1562 mTrack->getPosition(&mNumFramesWritten); 1563 } 1564} 1565 1566void MediaPlayerService::AudioOutput::snoopWrite(const void* buffer, size_t size) { 1567 // Only make visualization buffers if anyone recently requested visualization data 1568 uint64_t now = uptimeMillis(); 1569 if (lastReadTime + TOTALBUFTIMEMSEC >= now) { 1570 // Based on the current play counter, the number of frames written and 1571 // the current real time we can calculate the approximate real start 1572 // time of the buffer we're about to write. 1573 uint32_t pos; 1574 mTrack->getPosition(&pos); 1575 1576 // we're writing ahead by this many frames: 1577 int ahead = mNumFramesWritten - pos; 1578 //LOGI("@@@ written: %d, playpos: %d, latency: %d", mNumFramesWritten, pos, mTrack->latency()); 1579 // which is this many milliseconds, assuming 44100 Hz: 1580 ahead /= 44; 1581 1582 makeVizBuffers((const char*)buffer, size, now + ahead + mTrack->latency()); 1583 lastWriteTime = now; 1584 } 1585} 1586 1587 1588ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size) 1589{ 1590 LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback."); 1591 1592 //LOGV("write(%p, %u)", buffer, size); 1593 if (mTrack) { 1594 snoopWrite(buffer, size); 1595 ssize_t ret = mTrack->write(buffer, size); 1596 mNumFramesWritten += ret / 4; // assume 16 bit stereo 1597 return ret; 1598 } 1599 return NO_INIT; 1600} 1601 1602void MediaPlayerService::AudioOutput::stop() 1603{ 1604 LOGV("stop"); 1605 if (mTrack) mTrack->stop(); 1606 lastWriteTime = 0; 1607} 1608 1609void MediaPlayerService::AudioOutput::flush() 1610{ 1611 LOGV("flush"); 1612 if (mTrack) mTrack->flush(); 1613} 1614 1615void MediaPlayerService::AudioOutput::pause() 1616{ 1617 LOGV("pause"); 1618 if (mTrack) mTrack->pause(); 1619 lastWriteTime = 0; 1620} 1621 1622void MediaPlayerService::AudioOutput::close() 1623{ 1624 LOGV("close"); 1625 delete mTrack; 1626 mTrack = 0; 1627} 1628 1629void MediaPlayerService::AudioOutput::setVolume(float left, float right) 1630{ 1631 LOGV("setVolume(%f, %f)", left, right); 1632 mLeftVolume = left; 1633 mRightVolume = right; 1634 if (mTrack) { 1635 mTrack->setVolume(left, right); 1636 } 1637} 1638 1639// static 1640void MediaPlayerService::AudioOutput::CallbackWrapper( 1641 int event, void *cookie, void *info) { 1642 //LOGV("callbackwrapper"); 1643 if (event != AudioTrack::EVENT_MORE_DATA) { 1644 return; 1645 } 1646 1647 AudioOutput *me = (AudioOutput *)cookie; 1648 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 1649 1650 size_t actualSize = (*me->mCallback)( 1651 me, buffer->raw, buffer->size, me->mCallbackCookie); 1652 1653 buffer->size = actualSize; 1654 1655 if (actualSize > 0) { 1656 me->snoopWrite(buffer->raw, actualSize); 1657 } 1658} 1659 1660#undef LOG_TAG 1661#define LOG_TAG "AudioCache" 1662MediaPlayerService::AudioCache::AudioCache(const char* name) : 1663 mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0), 1664 mError(NO_ERROR), mCommandComplete(false) 1665{ 1666 // create ashmem heap 1667 mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name); 1668} 1669 1670uint32_t MediaPlayerService::AudioCache::latency () const 1671{ 1672 return 0; 1673} 1674 1675float MediaPlayerService::AudioCache::msecsPerFrame() const 1676{ 1677 return mMsecsPerFrame; 1678} 1679 1680status_t MediaPlayerService::AudioCache::getPosition(uint32_t *position) 1681{ 1682 if (position == 0) return BAD_VALUE; 1683 *position = mSize; 1684 return NO_ERROR; 1685} 1686 1687//////////////////////////////////////////////////////////////////////////////// 1688 1689struct CallbackThread : public Thread { 1690 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink, 1691 MediaPlayerBase::AudioSink::AudioCallback cb, 1692 void *cookie); 1693 1694protected: 1695 virtual ~CallbackThread(); 1696 1697 virtual bool threadLoop(); 1698 1699private: 1700 wp<MediaPlayerBase::AudioSink> mSink; 1701 MediaPlayerBase::AudioSink::AudioCallback mCallback; 1702 void *mCookie; 1703 void *mBuffer; 1704 size_t mBufferSize; 1705 1706 CallbackThread(const CallbackThread &); 1707 CallbackThread &operator=(const CallbackThread &); 1708}; 1709 1710CallbackThread::CallbackThread( 1711 const wp<MediaPlayerBase::AudioSink> &sink, 1712 MediaPlayerBase::AudioSink::AudioCallback cb, 1713 void *cookie) 1714 : mSink(sink), 1715 mCallback(cb), 1716 mCookie(cookie), 1717 mBuffer(NULL), 1718 mBufferSize(0) { 1719} 1720 1721CallbackThread::~CallbackThread() { 1722 if (mBuffer) { 1723 free(mBuffer); 1724 mBuffer = NULL; 1725 } 1726} 1727 1728bool CallbackThread::threadLoop() { 1729 sp<MediaPlayerBase::AudioSink> sink = mSink.promote(); 1730 if (sink == NULL) { 1731 return false; 1732 } 1733 1734 if (mBuffer == NULL) { 1735 mBufferSize = sink->bufferSize(); 1736 mBuffer = malloc(mBufferSize); 1737 } 1738 1739 size_t actualSize = 1740 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie); 1741 1742 if (actualSize > 0) { 1743 sink->write(mBuffer, actualSize); 1744 } 1745 1746 return true; 1747} 1748 1749//////////////////////////////////////////////////////////////////////////////// 1750 1751status_t MediaPlayerService::AudioCache::open( 1752 uint32_t sampleRate, int channelCount, int format, int bufferCount, 1753 AudioCallback cb, void *cookie) 1754{ 1755 LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount); 1756 if (mHeap->getHeapID() < 0) { 1757 return NO_INIT; 1758 } 1759 1760 mSampleRate = sampleRate; 1761 mChannelCount = (uint16_t)channelCount; 1762 mFormat = (uint16_t)format; 1763 mMsecsPerFrame = 1.e3 / (float) sampleRate; 1764 1765 if (cb != NULL) { 1766 mCallbackThread = new CallbackThread(this, cb, cookie); 1767 } 1768 return NO_ERROR; 1769} 1770 1771void MediaPlayerService::AudioCache::start() { 1772 if (mCallbackThread != NULL) { 1773 mCallbackThread->run("AudioCache callback"); 1774 } 1775} 1776 1777void MediaPlayerService::AudioCache::stop() { 1778 if (mCallbackThread != NULL) { 1779 mCallbackThread->requestExitAndWait(); 1780 } 1781} 1782 1783ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size) 1784{ 1785 LOGV("write(%p, %u)", buffer, size); 1786 if ((buffer == 0) || (size == 0)) return size; 1787 1788 uint8_t* p = static_cast<uint8_t*>(mHeap->getBase()); 1789 if (p == NULL) return NO_INIT; 1790 p += mSize; 1791 LOGV("memcpy(%p, %p, %u)", p, buffer, size); 1792 if (mSize + size > mHeap->getSize()) { 1793 LOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize()); 1794 size = mHeap->getSize() - mSize; 1795 } 1796 memcpy(p, buffer, size); 1797 mSize += size; 1798 return size; 1799} 1800 1801// call with lock held 1802status_t MediaPlayerService::AudioCache::wait() 1803{ 1804 Mutex::Autolock lock(mLock); 1805 while (!mCommandComplete) { 1806 mSignal.wait(mLock); 1807 } 1808 mCommandComplete = false; 1809 1810 if (mError == NO_ERROR) { 1811 LOGV("wait - success"); 1812 } else { 1813 LOGV("wait - error"); 1814 } 1815 return mError; 1816} 1817 1818void MediaPlayerService::AudioCache::notify(void* cookie, int msg, int ext1, int ext2) 1819{ 1820 LOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2); 1821 AudioCache* p = static_cast<AudioCache*>(cookie); 1822 1823 // ignore buffering messages 1824 switch (msg) 1825 { 1826 case MEDIA_ERROR: 1827 LOGE("Error %d, %d occurred", ext1, ext2); 1828 p->mError = ext1; 1829 break; 1830 case MEDIA_PREPARED: 1831 LOGV("prepared"); 1832 break; 1833 case MEDIA_PLAYBACK_COMPLETE: 1834 LOGV("playback complete"); 1835 break; 1836 default: 1837 LOGV("ignored"); 1838 return; 1839 } 1840 1841 // wake up thread 1842 Mutex::Autolock lock(p->mLock); 1843 p->mCommandComplete = true; 1844 p->mSignal.signal(); 1845} 1846 1847} // namespace android 1848