| /* |
| ** |
| ** Copyright 2008, The Android Open Source Project |
| ** |
| ** Licensed under the Apache License, Version 2.0 (the "License"); |
| ** you may not use this file except in compliance with the License. |
| ** You may obtain a copy of the License at |
| ** |
| ** http://www.apache.org/licenses/LICENSE-2.0 |
| ** |
| ** Unless required by applicable law or agreed to in writing, software |
| ** distributed under the License is distributed on an "AS IS" BASIS, |
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ** See the License for the specific language governing permissions and |
| ** limitations under the License. |
| */ |
| |
| // Proxy for media player implementations |
| |
| //#define LOG_NDEBUG 0 |
| #define LOG_TAG "MediaPlayerService" |
| #include <utils/Log.h> |
| |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <dirent.h> |
| #include <unistd.h> |
| |
| #include <string.h> |
| #include <cutils/atomic.h> |
| |
| #include <android_runtime/ActivityManager.h> |
| #include <utils/IPCThreadState.h> |
| #include <utils/IServiceManager.h> |
| #include <utils/MemoryHeapBase.h> |
| #include <utils/MemoryBase.h> |
| #include <cutils/properties.h> |
| |
| #include <media/MediaPlayerInterface.h> |
| #include <media/mediarecorder.h> |
| #include <media/MediaMetadataRetrieverInterface.h> |
| #include <media/AudioTrack.h> |
| |
| #include "MediaRecorderClient.h" |
| #include "MediaPlayerService.h" |
| #include "MetadataRetrieverClient.h" |
| |
| #include "MidiFile.h" |
| #include "VorbisPlayer.h" |
| #include <media/PVPlayer.h> |
| |
| /* desktop Linux needs a little help with gettid() */ |
| #if defined(HAVE_GETTID) && !defined(HAVE_ANDROID_OS) |
| #define __KERNEL__ |
| # include <linux/unistd.h> |
| #ifdef _syscall0 |
| _syscall0(pid_t,gettid) |
| #else |
| pid_t gettid() { return syscall(__NR_gettid);} |
| #endif |
| #undef __KERNEL__ |
| #endif |
| |
| /* |
| When USE_SIGBUS_HANDLER is set to 1, a handler for SIGBUS will be |
| installed, which allows us to recover when there is a read error |
| when accessing an mmap'ed file. However, since the kernel folks |
| don't seem to like it when non kernel folks install signal handlers |
| in their own process, this is currently disabled. |
| Without the handler, the process hosting this service will die and |
| then be restarted. This is mostly OK right now because the process is |
| not being shared with any other services, and clients of the service |
| will be notified of its death in their MediaPlayer.onErrorListener |
| callback, assuming they have installed one, and can then attempt to |
| do their own recovery. |
| It does open us up to a DOS attack against the media server, where |
| a malicious application can trivially force the media server to |
| restart continuously. |
| */ |
| #define USE_SIGBUS_HANDLER 0 |
| |
| // TODO: Temp hack until we can register players |
| static const char* MIDI_FILE_EXTS[] = |
| { |
| ".mid", |
| ".smf", |
| ".xmf", |
| ".imy", |
| ".rtttl", |
| ".rtx", |
| ".ota" |
| }; |
| |
| namespace android { |
| |
| // TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround |
| /* static */ const uint32_t MediaPlayerService::AudioOutput::kAudioVideoDelayMs = 96; |
| /* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4; |
| /* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false; |
| |
| static struct sigaction oldact; |
| static pthread_key_t sigbuskey; |
| |
| static void sigbushandler(int signal, siginfo_t *info, void *context) |
| { |
| char *faultaddr = (char*) info->si_addr; |
| LOGE("SIGBUS at %p\n", faultaddr); |
| |
| struct mediasigbushandler* h = (struct mediasigbushandler*) pthread_getspecific(sigbuskey); |
| |
| if (h) { |
| if (h->len) { |
| if (faultaddr < h->base || faultaddr >= h->base + h->len) { |
| // outside specified range, call old handler |
| if (oldact.sa_flags & SA_SIGINFO) { |
| oldact.sa_sigaction(signal, info, context); |
| } else { |
| oldact.sa_handler(signal); |
| } |
| return; |
| } |
| } |
| |
| // no range specified or address was in range |
| |
| if (h->handlesigbus) { |
| if (h->handlesigbus(info, h)) { |
| // thread's handler didn't handle the signal |
| if (oldact.sa_flags & SA_SIGINFO) { |
| oldact.sa_sigaction(signal, info, context); |
| } else { |
| oldact.sa_handler(signal); |
| } |
| } |
| return; |
| } |
| |
| if (h->sigbusvar) { |
| // map in a zeroed out page so the operation can succeed |
| long pagesize = sysconf(_SC_PAGE_SIZE); |
| long pagemask = ~(pagesize - 1); |
| void * pageaddr = (void*) (((long)(faultaddr)) & pagemask); |
| |
| void * bar = mmap( pageaddr, pagesize, PROT_READ, MAP_ANONYMOUS|MAP_PRIVATE|MAP_FIXED, -1, 0); |
| if (bar == MAP_FAILED) { |
| LOGE("couldn't map zero page at %p: %s", pageaddr, strerror(errno)); |
| if (oldact.sa_flags & SA_SIGINFO) { |
| oldact.sa_sigaction(signal, info, context); |
| } else { |
| oldact.sa_handler(signal); |
| } |
| return; |
| } |
| |
| LOGE("setting sigbusvar at %p", h->sigbusvar); |
| *(h->sigbusvar) = 1; |
| return; |
| } |
| } |
| |
| LOGE("SIGBUS: no handler, or improperly configured handler (%p)", h); |
| |
| if (oldact.sa_flags & SA_SIGINFO) { |
| oldact.sa_sigaction(signal, info, context); |
| } else { |
| oldact.sa_handler(signal); |
| } |
| return; |
| } |
| |
| void MediaPlayerService::instantiate() { |
| defaultServiceManager()->addService( |
| String16("media.player"), new MediaPlayerService()); |
| } |
| |
| MediaPlayerService::MediaPlayerService() |
| { |
| LOGV("MediaPlayerService created"); |
| mNextConnId = 1; |
| |
| pthread_key_create(&sigbuskey, NULL); |
| |
| |
| #if USE_SIGBUS_HANDLER |
| struct sigaction act; |
| memset(&act,0, sizeof act); |
| act.sa_sigaction = sigbushandler; |
| act.sa_flags = SA_SIGINFO; |
| sigaction(SIGBUS, &act, &oldact); |
| #endif |
| } |
| |
| MediaPlayerService::~MediaPlayerService() |
| { |
| #if USE_SIGBUS_HANDLER |
| sigaction(SIGBUS, &oldact, NULL); |
| #endif |
| pthread_key_delete(sigbuskey); |
| LOGV("MediaPlayerService destroyed"); |
| } |
| |
| sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(pid_t pid) |
| { |
| sp<MediaRecorderClient> recorder = new MediaRecorderClient(pid); |
| LOGV("Create new media recorder client from pid %d", pid); |
| return recorder; |
| } |
| |
| sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever(pid_t pid) |
| { |
| sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid); |
| LOGV("Create new media retriever from pid %d", pid); |
| return retriever; |
| } |
| |
| sp<IMediaPlayer> MediaPlayerService::create(pid_t pid, const sp<IMediaPlayerClient>& client, const char* url) |
| { |
| int32_t connId = android_atomic_inc(&mNextConnId); |
| sp<Client> c = new Client(this, pid, connId, client); |
| LOGV("Create new client(%d) from pid %d, url=%s, connId=%d", connId, pid, url, connId); |
| if (NO_ERROR != c->setDataSource(url)) |
| { |
| c.clear(); |
| return c; |
| } |
| wp<Client> w = c; |
| Mutex::Autolock lock(mLock); |
| mClients.add(w); |
| return c; |
| } |
| |
| sp<IMediaPlayer> MediaPlayerService::create(pid_t pid, const sp<IMediaPlayerClient>& client, |
| int fd, int64_t offset, int64_t length) |
| { |
| int32_t connId = android_atomic_inc(&mNextConnId); |
| sp<Client> c = new Client(this, pid, connId, client); |
| LOGV("Create new client(%d) from pid %d, fd=%d, offset=%lld, length=%lld", |
| connId, pid, fd, offset, length); |
| if (NO_ERROR != c->setDataSource(fd, offset, length)) { |
| c.clear(); |
| } else { |
| wp<Client> w = c; |
| Mutex::Autolock lock(mLock); |
| mClients.add(w); |
| } |
| ::close(fd); |
| return c; |
| } |
| |
| status_t MediaPlayerService::AudioCache::dump(int fd, const Vector<String16>& args) const |
| { |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| String8 result; |
| |
| result.append(" AudioCache\n"); |
| if (mHeap != 0) { |
| snprintf(buffer, 255, " heap base(%p), size(%d), flags(%d), device(%s)\n", |
| mHeap->getBase(), mHeap->getSize(), mHeap->getFlags(), mHeap->getDevice()); |
| result.append(buffer); |
| } |
| snprintf(buffer, 255, " msec per frame(%f), channel count(%d), format(%d), frame count(%ld)\n", |
| mMsecsPerFrame, mChannelCount, mFormat, mFrameCount); |
| result.append(buffer); |
| snprintf(buffer, 255, " sample rate(%d), size(%d), error(%d), command complete(%s)\n", |
| mSampleRate, mSize, mError, mCommandComplete?"true":"false"); |
| result.append(buffer); |
| ::write(fd, result.string(), result.size()); |
| return NO_ERROR; |
| } |
| |
| status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const |
| { |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| String8 result; |
| |
| result.append(" AudioOutput\n"); |
| snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", |
| mStreamType, mLeftVolume, mRightVolume); |
| result.append(buffer); |
| snprintf(buffer, 255, " msec per frame(%f), latency (%d)\n", |
| mMsecsPerFrame, mLatency); |
| result.append(buffer); |
| ::write(fd, result.string(), result.size()); |
| if (mTrack != 0) { |
| mTrack->dump(fd, args); |
| } |
| return NO_ERROR; |
| } |
| |
| status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) const |
| { |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| String8 result; |
| result.append(" Client\n"); |
| snprintf(buffer, 255, " pid(%d), connId(%d), status(%d), looping(%s)\n", |
| mPid, mConnId, mStatus, mLoop?"true": "false"); |
| result.append(buffer); |
| write(fd, result.string(), result.size()); |
| if (mAudioOutput != 0) { |
| mAudioOutput->dump(fd, args); |
| } |
| write(fd, "\n", 1); |
| return NO_ERROR; |
| } |
| |
| static int myTid() { |
| #ifdef HAVE_GETTID |
| return gettid(); |
| #else |
| return getpid(); |
| #endif |
| } |
| |
| status_t MediaPlayerService::dump(int fd, const Vector<String16>& args) |
| { |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| String8 result; |
| if (checkCallingPermission(String16("android.permission.DUMP")) == false) { |
| snprintf(buffer, SIZE, "Permission Denial: " |
| "can't dump MediaPlayerService from pid=%d, uid=%d\n", |
| IPCThreadState::self()->getCallingPid(), |
| IPCThreadState::self()->getCallingUid()); |
| result.append(buffer); |
| } else { |
| Mutex::Autolock lock(mLock); |
| for (int i = 0, n = mClients.size(); i < n; ++i) { |
| sp<Client> c = mClients[i].promote(); |
| if (c != 0) c->dump(fd, args); |
| } |
| result.append(" Files opened and/or mapped:\n"); |
| snprintf(buffer, SIZE, "/proc/%d/maps", myTid()); |
| FILE *f = fopen(buffer, "r"); |
| if (f) { |
| while (!feof(f)) { |
| fgets(buffer, SIZE, f); |
| if (strstr(buffer, " /sdcard/") || |
| strstr(buffer, " /system/sounds/") || |
| strstr(buffer, " /system/media/")) { |
| result.append(" "); |
| result.append(buffer); |
| } |
| } |
| fclose(f); |
| } else { |
| result.append("couldn't open "); |
| result.append(buffer); |
| result.append("\n"); |
| } |
| |
| snprintf(buffer, SIZE, "/proc/%d/fd", myTid()); |
| DIR *d = opendir(buffer); |
| if (d) { |
| struct dirent *ent; |
| while((ent = readdir(d)) != NULL) { |
| if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) { |
| snprintf(buffer, SIZE, "/proc/%d/fd/%s", myTid(), ent->d_name); |
| struct stat s; |
| if (lstat(buffer, &s) == 0) { |
| if ((s.st_mode & S_IFMT) == S_IFLNK) { |
| char linkto[256]; |
| int len = readlink(buffer, linkto, sizeof(linkto)); |
| if(len > 0) { |
| if(len > 255) { |
| linkto[252] = '.'; |
| linkto[253] = '.'; |
| linkto[254] = '.'; |
| linkto[255] = 0; |
| } else { |
| linkto[len] = 0; |
| } |
| if (strstr(linkto, "/sdcard/") == linkto || |
| strstr(linkto, "/system/sounds/") == linkto || |
| strstr(linkto, "/system/media/") == linkto) { |
| result.append(" "); |
| result.append(buffer); |
| result.append(" -> "); |
| result.append(linkto); |
| result.append("\n"); |
| } |
| } |
| } else { |
| result.append(" unexpected type for "); |
| result.append(buffer); |
| result.append("\n"); |
| } |
| } |
| } |
| } |
| closedir(d); |
| } else { |
| result.append("couldn't open "); |
| result.append(buffer); |
| result.append("\n"); |
| } |
| } |
| write(fd, result.string(), result.size()); |
| return NO_ERROR; |
| } |
| |
| void MediaPlayerService::removeClient(wp<Client> client) |
| { |
| Mutex::Autolock lock(mLock); |
| mClients.remove(client); |
| } |
| |
| MediaPlayerService::Client::Client(const sp<MediaPlayerService>& service, pid_t pid, |
| int32_t connId, const sp<IMediaPlayerClient>& client) |
| { |
| LOGV("Client(%d) constructor", connId); |
| mPid = pid; |
| mConnId = connId; |
| mService = service; |
| mClient = client; |
| mLoop = false; |
| mStatus = NO_INIT; |
| #if CALLBACK_ANTAGONIZER |
| LOGD("create Antagonizer"); |
| mAntagonizer = new Antagonizer(notify, this); |
| #endif |
| } |
| |
| MediaPlayerService::Client::~Client() |
| { |
| LOGV("Client(%d) destructor pid = %d", mConnId, mPid); |
| mAudioOutput.clear(); |
| wp<Client> client(this); |
| disconnect(); |
| mService->removeClient(client); |
| } |
| |
| void MediaPlayerService::Client::disconnect() |
| { |
| LOGV("disconnect(%d) from pid %d", mConnId, mPid); |
| // grab local reference and clear main reference to prevent future |
| // access to object |
| sp<MediaPlayerBase> p; |
| { |
| Mutex::Autolock l(mLock); |
| p = mPlayer; |
| } |
| mPlayer.clear(); |
| |
| // clear the notification to prevent callbacks to dead client |
| // and reset the player. We assume the player will serialize |
| // access to itself if necessary. |
| if (p != 0) { |
| p->setNotifyCallback(0, 0); |
| #if CALLBACK_ANTAGONIZER |
| LOGD("kill Antagonizer"); |
| mAntagonizer->kill(); |
| #endif |
| p->reset(); |
| } |
| |
| IPCThreadState::self()->flushCommands(); |
| } |
| |
| static player_type getPlayerType(int fd, int64_t offset, int64_t length) |
| { |
| char buf[20]; |
| lseek(fd, offset, SEEK_SET); |
| read(fd, buf, sizeof(buf)); |
| lseek(fd, offset, SEEK_SET); |
| |
| long ident = *((long*)buf); |
| |
| // Ogg vorbis? |
| if (ident == 0x5367674f) // 'OggS' |
| return VORBIS_PLAYER; |
| |
| // Some kind of MIDI? |
| EAS_DATA_HANDLE easdata; |
| if (EAS_Init(&easdata) == EAS_SUCCESS) { |
| EAS_FILE locator; |
| locator.path = NULL; |
| locator.fd = fd; |
| locator.offset = offset; |
| locator.length = length; |
| EAS_HANDLE eashandle; |
| if (EAS_OpenFile(easdata, &locator, &eashandle, NULL) == EAS_SUCCESS) { |
| EAS_CloseFile(easdata, eashandle); |
| EAS_Shutdown(easdata); |
| return SONIVOX_PLAYER; |
| } |
| EAS_Shutdown(easdata); |
| } |
| |
| // Fall through to PV |
| return PV_PLAYER; |
| } |
| |
| static player_type getPlayerType(const char* url) |
| { |
| |
| // use MidiFile for MIDI extensions |
| int lenURL = strlen(url); |
| for (int i = 0; i < NELEM(MIDI_FILE_EXTS); ++i) { |
| int len = strlen(MIDI_FILE_EXTS[i]); |
| int start = lenURL - len; |
| if (start > 0) { |
| if (!strncmp(url + start, MIDI_FILE_EXTS[i], len)) { |
| LOGV("Type is MIDI"); |
| return SONIVOX_PLAYER; |
| } |
| } |
| } |
| |
| if (strcmp(url + strlen(url) - 4, ".ogg") == 0) { |
| LOGV("Type is Vorbis"); |
| return VORBIS_PLAYER; |
| } |
| |
| // Fall through to PV |
| return PV_PLAYER; |
| } |
| |
| static sp<MediaPlayerBase> createPlayer(player_type playerType, void* cookie, |
| notify_callback_f notifyFunc) |
| { |
| sp<MediaPlayerBase> p; |
| switch (playerType) { |
| case PV_PLAYER: |
| LOGV(" create PVPlayer"); |
| p = new PVPlayer(); |
| break; |
| case SONIVOX_PLAYER: |
| LOGV(" create MidiFile"); |
| p = new MidiFile(); |
| break; |
| case VORBIS_PLAYER: |
| LOGV(" create VorbisPlayer"); |
| p = new VorbisPlayer(); |
| break; |
| } |
| if (p != NULL) { |
| if (p->initCheck() == NO_ERROR) { |
| p->setNotifyCallback(cookie, notifyFunc); |
| p->setSigBusHandlerStructTLSKey(sigbuskey); |
| } else { |
| p.clear(); |
| } |
| } |
| if (p == NULL) { |
| LOGE("Failed to create player object"); |
| } |
| return p; |
| } |
| |
| sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType) |
| { |
| // determine if we have the right player type |
| sp<MediaPlayerBase> p = mPlayer; |
| if ((p != NULL) && (p->playerType() != playerType)) { |
| LOGV("delete player"); |
| p.clear(); |
| } |
| if (p == NULL) { |
| p = android::createPlayer(playerType, this, notify); |
| } |
| return p; |
| } |
| |
| status_t MediaPlayerService::Client::setDataSource(const char *url) |
| { |
| LOGV("setDataSource(%s)", url); |
| if (url == NULL) |
| return UNKNOWN_ERROR; |
| |
| if (strncmp(url, "content://", 10) == 0) { |
| // get a filedescriptor for the content Uri and |
| // pass it to the setDataSource(fd) method |
| |
| String16 url16(url); |
| int fd = android::openContentProviderFile(url16); |
| if (fd < 0) |
| { |
| LOGE("Couldn't open fd for %s", url); |
| return UNKNOWN_ERROR; |
| } |
| setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus |
| close(fd); |
| return mStatus; |
| } else { |
| player_type playerType = getPlayerType(url); |
| LOGV("player type = %d", playerType); |
| |
| // create the right type of player |
| sp<MediaPlayerBase> p = createPlayer(playerType); |
| if (p == NULL) return NO_INIT; |
| |
| if (!p->hardwareOutput()) { |
| mAudioOutput = new AudioOutput(); |
| static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); |
| } |
| |
| // now set data source |
| LOGV(" setDataSource"); |
| mStatus = p->setDataSource(url); |
| if (mStatus == NO_ERROR) mPlayer = p; |
| return mStatus; |
| } |
| } |
| |
| status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length) |
| { |
| LOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length); |
| struct stat sb; |
| int ret = fstat(fd, &sb); |
| if (ret != 0) { |
| LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); |
| return UNKNOWN_ERROR; |
| } |
| |
| LOGV("st_dev = %llu", sb.st_dev); |
| LOGV("st_mode = %u", sb.st_mode); |
| LOGV("st_uid = %lu", sb.st_uid); |
| LOGV("st_gid = %lu", sb.st_gid); |
| LOGV("st_size = %llu", sb.st_size); |
| |
| if (offset >= sb.st_size) { |
| LOGE("offset error"); |
| ::close(fd); |
| return UNKNOWN_ERROR; |
| } |
| if (offset + length > sb.st_size) { |
| length = sb.st_size - offset; |
| LOGV("calculated length = %lld", length); |
| } |
| |
| player_type playerType = getPlayerType(fd, offset, length); |
| LOGV("player type = %d", playerType); |
| |
| // create the right type of player |
| sp<MediaPlayerBase> p = createPlayer(playerType); |
| if (p == NULL) return NO_INIT; |
| |
| if (!p->hardwareOutput()) { |
| mAudioOutput = new AudioOutput(); |
| static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput); |
| } |
| |
| // now set data source |
| mStatus = p->setDataSource(fd, offset, length); |
| if (mStatus == NO_ERROR) mPlayer = p; |
| return mStatus; |
| } |
| |
| status_t MediaPlayerService::Client::setVideoSurface(const sp<ISurface>& surface) |
| { |
| LOGV("[%d] setVideoSurface(%p)", mConnId, surface.get()); |
| sp<MediaPlayerBase> p = getPlayer(); |
| if (p == 0) return UNKNOWN_ERROR; |
| return p->setVideoSurface(surface); |
| } |
| |
| status_t MediaPlayerService::Client::prepareAsync() |
| { |
| LOGV("[%d] prepareAsync", mConnId); |
| sp<MediaPlayerBase> p = getPlayer(); |
| if (p == 0) return UNKNOWN_ERROR; |
| status_t ret = p->prepareAsync(); |
| #if CALLBACK_ANTAGONIZER |
| LOGD("start Antagonizer"); |
| if (ret == NO_ERROR) mAntagonizer->start(); |
| #endif |
| return ret; |
| } |
| |
| status_t MediaPlayerService::Client::start() |
| { |
| LOGV("[%d] start", mConnId); |
| sp<MediaPlayerBase> p = getPlayer(); |
| if (p == 0) return UNKNOWN_ERROR; |
| p->setLooping(mLoop); |
| return p->start(); |
| } |
| |
| status_t MediaPlayerService::Client::stop() |
| { |
| LOGV("[%d] stop", mConnId); |
| sp<MediaPlayerBase> p = getPlayer(); |
| if (p == 0) return UNKNOWN_ERROR; |
| return p->stop(); |
| } |
| |
| status_t MediaPlayerService::Client::pause() |
| { |
| LOGV("[%d] pause", mConnId); |
| sp<MediaPlayerBase> p = getPlayer(); |
| if (p == 0) return UNKNOWN_ERROR; |
| return p->pause(); |
| } |
| |
| status_t MediaPlayerService::Client::isPlaying(bool* state) |
| { |
| *state = false; |
| sp<MediaPlayerBase> p = getPlayer(); |
| if (p == 0) return UNKNOWN_ERROR; |
| *state = p->isPlaying(); |
| LOGV("[%d] isPlaying: %d", mConnId, *state); |
| return NO_ERROR; |
| } |
| |
| status_t MediaPlayerService::Client::getCurrentPosition(int *msec) |
| { |
| LOGV("getCurrentPosition"); |
| sp<MediaPlayerBase> p = getPlayer(); |
| if (p == 0) return UNKNOWN_ERROR; |
| status_t ret = p->getCurrentPosition(msec); |
| if (ret == NO_ERROR) { |
| LOGV("[%d] getCurrentPosition = %d", mConnId, *msec); |
| } else { |
| LOGE("getCurrentPosition returned %d", ret); |
| } |
| return ret; |
| } |
| |
| status_t MediaPlayerService::Client::getDuration(int *msec) |
| { |
| LOGV("getDuration"); |
| sp<MediaPlayerBase> p = getPlayer(); |
| if (p == 0) return UNKNOWN_ERROR; |
| status_t ret = p->getDuration(msec); |
| if (ret == NO_ERROR) { |
| LOGV("[%d] getDuration = %d", mConnId, *msec); |
| } else { |
| LOGE("getDuration returned %d", ret); |
| } |
| return ret; |
| } |
| |
| status_t MediaPlayerService::Client::seekTo(int msec) |
| { |
| LOGV("[%d] seekTo(%d)", mConnId, msec); |
| sp<MediaPlayerBase> p = getPlayer(); |
| if (p == 0) return UNKNOWN_ERROR; |
| return p->seekTo(msec); |
| } |
| |
| status_t MediaPlayerService::Client::reset() |
| { |
| LOGV("[%d] reset", mConnId); |
| sp<MediaPlayerBase> p = getPlayer(); |
| if (p == 0) return UNKNOWN_ERROR; |
| return p->reset(); |
| } |
| |
| status_t MediaPlayerService::Client::setAudioStreamType(int type) |
| { |
| LOGV("[%d] setAudioStreamType(%d)", mConnId, type); |
| // TODO: for hardware output, call player instead |
| Mutex::Autolock l(mLock); |
| if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type); |
| return NO_ERROR; |
| } |
| |
| status_t MediaPlayerService::Client::setLooping(int loop) |
| { |
| LOGV("[%d] setLooping(%d)", mConnId, loop); |
| mLoop = loop; |
| sp<MediaPlayerBase> p = getPlayer(); |
| if (p != 0) return p->setLooping(loop); |
| return NO_ERROR; |
| } |
| |
| status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume) |
| { |
| LOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume); |
| // TODO: for hardware output, call player instead |
| Mutex::Autolock l(mLock); |
| if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume); |
| return NO_ERROR; |
| } |
| |
| void MediaPlayerService::Client::notify(void* cookie, int msg, int ext1, int ext2) |
| { |
| Client* client = static_cast<Client*>(cookie); |
| LOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2); |
| client->mClient->notify(msg, ext1, ext2); |
| } |
| |
| #if CALLBACK_ANTAGONIZER |
| const int Antagonizer::interval = 10000; // 10 msecs |
| |
| Antagonizer::Antagonizer(notify_callback_f cb, void* client) : |
| mExit(false), mActive(false), mClient(client), mCb(cb) |
| { |
| createThread(callbackThread, this); |
| } |
| |
| void Antagonizer::kill() |
| { |
| Mutex::Autolock _l(mLock); |
| mActive = false; |
| mExit = true; |
| mCondition.wait(mLock); |
| } |
| |
| int Antagonizer::callbackThread(void* user) |
| { |
| LOGD("Antagonizer started"); |
| Antagonizer* p = reinterpret_cast<Antagonizer*>(user); |
| while (!p->mExit) { |
| if (p->mActive) { |
| LOGV("send event"); |
| p->mCb(p->mClient, 0, 0, 0); |
| } |
| usleep(interval); |
| } |
| Mutex::Autolock _l(p->mLock); |
| p->mCondition.signal(); |
| LOGD("Antagonizer stopped"); |
| return 0; |
| } |
| #endif |
| |
| static size_t kDefaultHeapSize = 1024 * 1024; // 1MB |
| |
| sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) |
| { |
| LOGV("decode(%s)", url); |
| sp<MemoryBase> mem; |
| sp<MediaPlayerBase> player; |
| |
| // Protect our precious, precious DRMd ringtones by only allowing |
| // decoding of http, but not filesystem paths or content Uris. |
| // If the application wants to decode those, it should open a |
| // filedescriptor for them and use that. |
| if (url != NULL && strncmp(url, "http://", 7) != 0) { |
| LOGD("Can't decode %s by path, use filedescriptor instead", url); |
| return mem; |
| } |
| |
| player_type playerType = getPlayerType(url); |
| LOGV("player type = %d", playerType); |
| |
| // create the right type of player |
| sp<AudioCache> cache = new AudioCache(url); |
| player = android::createPlayer(playerType, cache.get(), cache->notify); |
| if (player == NULL) goto Exit; |
| if (player->hardwareOutput()) goto Exit; |
| |
| static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); |
| |
| // set data source |
| if (player->setDataSource(url) != NO_ERROR) goto Exit; |
| |
| LOGV("prepare"); |
| player->prepareAsync(); |
| |
| LOGV("wait for prepare"); |
| if (cache->wait() != NO_ERROR) goto Exit; |
| |
| LOGV("start"); |
| player->start(); |
| |
| LOGV("wait for playback complete"); |
| if (cache->wait() != NO_ERROR) goto Exit; |
| |
| mem = new MemoryBase(cache->getHeap(), 0, cache->size()); |
| *pSampleRate = cache->sampleRate(); |
| *pNumChannels = cache->channelCount(); |
| *pFormat = cache->format(); |
| LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); |
| |
| Exit: |
| if (player != 0) player->reset(); |
| return mem; |
| } |
| |
| sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) |
| { |
| LOGV("decode(%d, %lld, %lld)", fd, offset, length); |
| sp<MemoryBase> mem; |
| sp<MediaPlayerBase> player; |
| |
| player_type playerType = getPlayerType(fd, offset, length); |
| LOGV("player type = %d", playerType); |
| |
| // create the right type of player |
| sp<AudioCache> cache = new AudioCache("decode_fd"); |
| player = android::createPlayer(playerType, cache.get(), cache->notify); |
| if (player == NULL) goto Exit; |
| if (player->hardwareOutput()) goto Exit; |
| |
| static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache); |
| |
| // set data source |
| if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit; |
| |
| LOGV("prepare"); |
| player->prepareAsync(); |
| |
| LOGV("wait for prepare"); |
| if (cache->wait() != NO_ERROR) goto Exit; |
| |
| LOGV("start"); |
| player->start(); |
| |
| LOGV("wait for playback complete"); |
| if (cache->wait() != NO_ERROR) goto Exit; |
| |
| mem = new MemoryBase(cache->getHeap(), 0, cache->size()); |
| *pSampleRate = cache->sampleRate(); |
| *pNumChannels = cache->channelCount(); |
| *pFormat = cache->format(); |
| LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat); |
| |
| Exit: |
| if (player != 0) player->reset(); |
| ::close(fd); |
| return mem; |
| } |
| |
| #undef LOG_TAG |
| #define LOG_TAG "AudioSink" |
| MediaPlayerService::AudioOutput::AudioOutput() |
| { |
| mTrack = 0; |
| mStreamType = AudioTrack::MUSIC; |
| mLeftVolume = 1.0; |
| mRightVolume = 1.0; |
| mLatency = 0; |
| mMsecsPerFrame = 0; |
| setMinBufferCount(); |
| } |
| |
| MediaPlayerService::AudioOutput::~AudioOutput() |
| { |
| close(); |
| } |
| |
| void MediaPlayerService::AudioOutput::setMinBufferCount() |
| { |
| char value[PROPERTY_VALUE_MAX]; |
| if (property_get("ro.kernel.qemu", value, 0)) { |
| mIsOnEmulator = true; |
| mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator |
| } |
| } |
| |
| bool MediaPlayerService::AudioOutput::isOnEmulator() |
| { |
| setMinBufferCount(); |
| return mIsOnEmulator; |
| } |
| |
| int MediaPlayerService::AudioOutput::getMinBufferCount() |
| { |
| setMinBufferCount(); |
| return mMinBufferCount; |
| } |
| |
| ssize_t MediaPlayerService::AudioOutput::bufferSize() const |
| { |
| if (mTrack == 0) return NO_INIT; |
| return mTrack->frameCount() * frameSize(); |
| } |
| |
| ssize_t MediaPlayerService::AudioOutput::frameCount() const |
| { |
| if (mTrack == 0) return NO_INIT; |
| return mTrack->frameCount(); |
| } |
| |
| ssize_t MediaPlayerService::AudioOutput::channelCount() const |
| { |
| if (mTrack == 0) return NO_INIT; |
| return mTrack->channelCount(); |
| } |
| |
| ssize_t MediaPlayerService::AudioOutput::frameSize() const |
| { |
| if (mTrack == 0) return NO_INIT; |
| return mTrack->frameSize(); |
| } |
| |
| uint32_t MediaPlayerService::AudioOutput::latency () const |
| { |
| return mLatency; |
| } |
| |
| float MediaPlayerService::AudioOutput::msecsPerFrame() const |
| { |
| return mMsecsPerFrame; |
| } |
| |
| status_t MediaPlayerService::AudioOutput::open(uint32_t sampleRate, int channelCount, int format, int bufferCount) |
| { |
| // Check argument "bufferCount" against the mininum buffer count |
| if (bufferCount < mMinBufferCount) { |
| LOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount); |
| bufferCount = mMinBufferCount; |
| |
| } |
| LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount); |
| if (mTrack) close(); |
| int afSampleRate; |
| int afFrameCount; |
| int frameCount; |
| |
| if (AudioSystem::getOutputFrameCount(&afFrameCount) != NO_ERROR) { |
| return NO_INIT; |
| } |
| if (AudioSystem::getOutputSamplingRate(&afSampleRate) != NO_ERROR) { |
| return NO_INIT; |
| } |
| |
| frameCount = (sampleRate*afFrameCount)/afSampleRate; |
| AudioTrack *t = new AudioTrack(mStreamType, sampleRate, format, channelCount, frameCount*bufferCount); |
| if ((t == 0) || (t->initCheck() != NO_ERROR)) { |
| LOGE("Unable to create audio track"); |
| delete t; |
| return NO_INIT; |
| } |
| |
| LOGV("setVolume"); |
| t->setVolume(mLeftVolume, mRightVolume); |
| mMsecsPerFrame = 1.e3 / (float) sampleRate; |
| mLatency = t->latency() + kAudioVideoDelayMs; |
| mTrack = t; |
| return NO_ERROR; |
| } |
| |
| void MediaPlayerService::AudioOutput::start() |
| { |
| LOGV("start"); |
| if (mTrack) { |
| mTrack->setVolume(mLeftVolume, mRightVolume); |
| mTrack->start(); |
| } |
| } |
| |
| ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size) |
| { |
| //LOGV("write(%p, %u)", buffer, size); |
| if (mTrack) return mTrack->write(buffer, size); |
| return NO_INIT; |
| } |
| |
| void MediaPlayerService::AudioOutput::stop() |
| { |
| LOGV("stop"); |
| if (mTrack) mTrack->stop(); |
| } |
| |
| void MediaPlayerService::AudioOutput::flush() |
| { |
| LOGV("flush"); |
| if (mTrack) mTrack->flush(); |
| } |
| |
| void MediaPlayerService::AudioOutput::pause() |
| { |
| LOGV("pause"); |
| if (mTrack) mTrack->pause(); |
| } |
| |
| void MediaPlayerService::AudioOutput::close() |
| { |
| LOGV("close"); |
| delete mTrack; |
| mTrack = 0; |
| } |
| |
| void MediaPlayerService::AudioOutput::setVolume(float left, float right) |
| { |
| LOGV("setVolume(%f, %f)", left, right); |
| mLeftVolume = left; |
| mRightVolume = right; |
| if (mTrack) { |
| mTrack->setVolume(left, right); |
| } |
| } |
| |
| #undef LOG_TAG |
| #define LOG_TAG "AudioCache" |
| MediaPlayerService::AudioCache::AudioCache(const char* name) : |
| mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0), |
| mError(NO_ERROR), mCommandComplete(false) |
| { |
| // create ashmem heap |
| mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name); |
| } |
| |
| uint32_t MediaPlayerService::AudioCache::latency () const |
| { |
| return 0; |
| } |
| |
| float MediaPlayerService::AudioCache::msecsPerFrame() const |
| { |
| return mMsecsPerFrame; |
| } |
| |
| status_t MediaPlayerService::AudioCache::open(uint32_t sampleRate, int channelCount, int format, int bufferCount) |
| { |
| LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount); |
| if (mHeap->getHeapID() < 0) return NO_INIT; |
| mSampleRate = sampleRate; |
| mChannelCount = (uint16_t)channelCount; |
| mFormat = (uint16_t)format; |
| mMsecsPerFrame = 1.e3 / (float) sampleRate; |
| return NO_ERROR; |
| } |
| |
| ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size) |
| { |
| LOGV("write(%p, %u)", buffer, size); |
| if ((buffer == 0) || (size == 0)) return size; |
| |
| uint8_t* p = static_cast<uint8_t*>(mHeap->getBase()); |
| if (p == NULL) return NO_INIT; |
| p += mSize; |
| LOGV("memcpy(%p, %p, %u)", p, buffer, size); |
| if (mSize + size > mHeap->getSize()) { |
| LOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize()); |
| size = mHeap->getSize() - mSize; |
| } |
| memcpy(p, buffer, size); |
| mSize += size; |
| return size; |
| } |
| |
| // call with lock held |
| status_t MediaPlayerService::AudioCache::wait() |
| { |
| Mutex::Autolock lock(mLock); |
| if (!mCommandComplete) { |
| mSignal.wait(mLock); |
| } |
| mCommandComplete = false; |
| |
| if (mError == NO_ERROR) { |
| LOGV("wait - success"); |
| } else { |
| LOGV("wait - error"); |
| } |
| return mError; |
| } |
| |
| void MediaPlayerService::AudioCache::notify(void* cookie, int msg, int ext1, int ext2) |
| { |
| LOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2); |
| AudioCache* p = static_cast<AudioCache*>(cookie); |
| |
| // ignore buffering messages |
| if (msg == MEDIA_BUFFERING_UPDATE) return; |
| |
| // set error condition |
| if (msg == MEDIA_ERROR) { |
| LOGE("Error %d, %d occurred", ext1, ext2); |
| p->mError = ext1; |
| } |
| |
| // wake up thread |
| LOGV("wakeup thread"); |
| p->mCommandComplete = true; |
| p->mSignal.signal(); |
| } |
| |
| }; // namespace android |