drgreen/android_frameworks_base
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
android_frameworks_base/media/libmediaplayerservice/MediaPlayerService.cpp
Nicolas Catania 20cb94eeb5 Direct api to the native media player. 
MediaPlayer.java has 3 new methods:
* newRequest creates a Parcel that can be used to send data to the
  native player using invoke.
* invoke issues synchronous calls to the native player using opaque
  parcels for the request and reply.

IMediaPlayer.h has 1 new abstract method:
* invoke

The Midi and Vorbis players have a stub for these. So far only PV
makes use of that new feature.

To avoid any copy overhead, the JNI interface uses Parcel as a java
object (no serialization/copy happens at the JNI layer).

The remote interface token is inserted when the Parcel is constructed
in java. That way the parcel is already routable when it reaches
 IMediaPlayer.cpp (proxy). No extra copy is needed there.
2009-06-24 08:22:52 -07:00

1191 lines
34 KiB
C++
Raw Blame History

/*
**
** 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 <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>
#include <binder/MemoryHeapBase.h>
#include <binder/MemoryBase.h>
#include <utils/Errors.h> // for status_t
#include <utils/String8.h>
#include <utils/Vector.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::invoke(const Parcel& request,
Parcel *reply)
{
sp<MediaPlayerBase> p = getPlayer();
if (p == NULL) return UNKNOWN_ERROR;
return p->invoke(request, reply);
}
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
Reference in New Issue View Git Blame Copy Permalink