Initial Contribution
diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
new file mode 100644
index 0000000..fd5f0ed
--- /dev/null
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -0,0 +1,1112 @@
+/*
+**
+** 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 <media/MediaPlayerInterface.h>
+#include <media/AudioTrack.h>
+
+#include "MediaPlayerService.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: should come from audio driver
+/* static */ const uint32_t MediaPlayerService::AudioOutput::kDriverLatencyInMsecs = 150;
+
+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<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(%ld), frame count(%ld)\n",
+ mMsecsPerFrame, mChannelCount, 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), driver latency(%d)\n",
+ mMsecsPerFrame, mLatency, kDriverLatencyInMsecs);
+ 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::getVideoSize(int *w, int *h)
+{
+ sp<MediaPlayerBase> p = getPlayer();
+ if (p == 0) return UNKNOWN_ERROR;
+ status_t ret = p->getVideoWidth(w);
+ if (ret == NO_ERROR) ret = p->getVideoHeight(h);
+ if (ret == NO_ERROR) {
+ LOGV("[%d] getVideoWidth = (%d, %d)", mConnId, *w, *h);
+ } else {
+ LOGE("getVideoSize returned %d", ret);
+ }
+ return ret;
+}
+
+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)
+{
+ 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();
+ LOGV("return memory @ %p, sampleRate=%u, channelCount = %d", mem->pointer(), *pSampleRate, *pNumChannels);
+
+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)
+{
+ 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();
+ LOGV("return memory @ %p, sampleRate=%u, channelCount = %d", mem->pointer(), *pSampleRate, *pNumChannels);
+
+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;
+}
+
+MediaPlayerService::AudioOutput::~AudioOutput()
+{
+ close();
+}
+
+ssize_t MediaPlayerService::AudioOutput::bufferSize() const
+{
+ if (mTrack == 0) return NO_INIT;
+ return mTrack->frameCount() * mTrack->channelCount() * sizeof(int16_t);
+}
+
+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->channelCount() * sizeof(int16_t);
+}
+
+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 bufferCount)
+{
+ LOGV("open(%u, %d, %d)", sampleRate, channelCount, bufferCount);
+ if (mTrack) close();
+
+ AudioTrack *t = new AudioTrack(mStreamType, sampleRate, AudioSystem::PCM_16_BIT, channelCount, 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 = (mMsecsPerFrame * bufferCount * t->frameCount()) + kDriverLatencyInMsecs;
+ 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(0), 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 bufferCount)
+{
+ LOGV("open(%u, %d, %d)", sampleRate, channelCount, bufferCount);
+ if (mHeap->getHeapID() < 0) return NO_INIT;
+ mSampleRate = sampleRate;
+ mChannelCount = channelCount;
+ 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);
+ 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