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android_frameworks_base/media/libmediaplayerservice/MediaPlayerService.cpp
The Android Open Source Project e1861133d5 Merge commit 'korg/cupcake' 
Conflicts:
	core/java/android/webkit/WebView.java
	core/java/android/widget/TwoLineListItem.java
	preloaded-classes
2009-03-27 15:38:40 -07:00

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/*
**
** 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
namespace android {
// TODO: Temp hack until we can register players
typedef struct {
const char *extension;
const player_type playertype;
} extmap;
extmap FILE_EXTS [] = {
{".mid", SONIVOX_PLAYER},
{".midi", SONIVOX_PLAYER},
{".smf", SONIVOX_PLAYER},
{".xmf", SONIVOX_PLAYER},
{".imy", SONIVOX_PLAYER},
{".rtttl", SONIVOX_PLAYER},
{".rtx", SONIVOX_PLAYER},
{".ota", SONIVOX_PLAYER},
{".ogg", VORBIS_PLAYER},
{".oga", VORBIS_PLAYER},
};
// 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;
void MediaPlayerService::instantiate() {
defaultServiceManager()->addService(
String16("media.player"), new MediaPlayerService());
}
MediaPlayerService::MediaPlayerService()
{
LOGV("MediaPlayerService created");
mNextConnId = 1;
}
MediaPlayerService::~MediaPlayerService()
{
LOGV("MediaPlayerService destroyed");
}
sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(pid_t pid)
{
#ifndef NO_OPENCORE
sp<MediaRecorderClient> recorder = new MediaRecorderClient(pid);
#else
sp<MediaRecorderClient> recorder = NULL;
#endif
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
}
#if defined(__arm__)
extern "C" void get_malloc_leak_info(uint8_t** info, size_t* overallSize,
size_t* infoSize, size_t* totalMemory, size_t* backtraceSize);
extern "C" void free_malloc_leak_info(uint8_t* info);
void memStatus(int fd, const Vector<String16>& args)
{
const size_t SIZE = 256;
char buffer[SIZE];
String8 result;
typedef struct {
size_t size;
size_t dups;
intptr_t * backtrace;
} AllocEntry;
uint8_t *info = NULL;
size_t overallSize = 0;
size_t infoSize = 0;
size_t totalMemory = 0;
size_t backtraceSize = 0;
get_malloc_leak_info(&info, &overallSize, &infoSize, &totalMemory, &backtraceSize);
if (info) {
uint8_t *ptr = info;
size_t count = overallSize / infoSize;
snprintf(buffer, SIZE, " Allocation count %i\n", count);
result.append(buffer);
AllocEntry * entries = new AllocEntry[count];
for (size_t i = 0; i < count; i++) {
// Each entry should be size_t, size_t, intptr_t[backtraceSize]
AllocEntry *e = &entries[i];
e->size = *reinterpret_cast<size_t *>(ptr);
ptr += sizeof(size_t);
e->dups = *reinterpret_cast<size_t *>(ptr);
ptr += sizeof(size_t);
e->backtrace = reinterpret_cast<intptr_t *>(ptr);
ptr += sizeof(intptr_t) * backtraceSize;
}
// Now we need to sort the entries. They come sorted by size but
// not by stack trace which causes problems using diff.
bool moved;
do {
moved = false;
for (size_t i = 0; i < (count - 1); i++) {
AllocEntry *e1 = &entries[i];
AllocEntry *e2 = &entries[i+1];
bool swap = e1->size < e2->size;
if (e1->size == e2->size) {
for(size_t j = 0; j < backtraceSize; j++) {
if (e1->backtrace[j] == e2->backtrace[j]) {
continue;
}
swap = e1->backtrace[j] < e2->backtrace[j];
break;
}
}
if (swap) {
AllocEntry t = entries[i];
entries[i] = entries[i+1];
entries[i+1] = t;
moved = true;
}
}
} while (moved);
for (size_t i = 0; i < count; i++) {
AllocEntry *e = &entries[i];
snprintf(buffer, SIZE, "size %8i, dup %4i", e->size, e->dups);
result.append(buffer);
for (size_t ct = 0; (ct < backtraceSize) && e->backtrace[ct]; ct++) {
if (ct) {
result.append(", ");
}
snprintf(buffer, SIZE, "0x%08x", e->backtrace[ct]);
result.append(buffer);
}
result.append("\n");
}
delete[] entries;
free_malloc_leak_info(info);
}
write(fd, result.string(), result.size());
}
#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");
}
#if defined(__arm__)
bool dumpMem = false;
for (size_t i = 0; i < args.size(); i++) {
if (args[i] == String16("-m")) {
dumpMem = true;
}
}
if (dumpMem) {
memStatus(fd, args);
}
#endif
}
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;
}
mClient.clear();
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) == 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(FILE_EXTS); ++i) {
int len = strlen(FILE_EXTS[i].extension);
int start = lenURL - len;
if (start > 0) {
if (!strncmp(url + start, FILE_EXTS[i].extension, len)) {
return FILE_EXTS[i].playertype;
}
}
}
// 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) {
#ifndef NO_OPENCORE
case PV_PLAYER:
LOGV(" create PVPlayer");
p = new PVPlayer();
break;
#endif
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);
} 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 = AudioSystem::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, mStreamType) != NO_ERROR) {
return NO_INIT;
}
if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) {
return NO_INIT;
}
frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate;
AudioTrack *t = new AudioTrack(mStreamType, sampleRate, format, channelCount, frameCount);
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
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