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LeafOS / LeafOS-Project / android_frameworks_av / 442a2ee35a2c3922237540aed8c16481e03dfb0d / . / media / libmediaplayerservice / MediaPlayerService.cpp
blob: d3c6c5d7ded19248f6be1b111ecbd7ca2c26a02e [file] [log] [blame]
/*
**
** 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 <sys/time.h>
#include <dirent.h>
#include <unistd.h>
#include <string.h>
#include <cutils/atomic.h>
#include <cutils/properties.h> // for property_get
#include <utils/misc.h>
#include <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>
#include <binder/MemoryHeapBase.h>
#include <binder/MemoryBase.h>
#include <gui/Surface.h>
#include <utils/Errors.h> // for status_t
#include <utils/String8.h>
#include <utils/SystemClock.h>
#include <utils/Timers.h>
#include <utils/Vector.h>
#include <media/AudioPolicyHelper.h>
#include <media/IMediaHTTPService.h>
#include <media/IRemoteDisplay.h>
#include <media/IRemoteDisplayClient.h>
#include <media/MediaPlayerInterface.h>
#include <media/mediarecorder.h>
#include <media/MediaMetadataRetrieverInterface.h>
#include <media/Metadata.h>
#include <media/AudioTrack.h>
#include <media/MemoryLeakTrackUtil.h>
#include <media/stagefright/MediaCodecList.h>
#include <media/stagefright/MediaErrors.h>
#include <media/stagefright/Utils.h>
#include <media/stagefright/foundation/ADebug.h>
#include <media/stagefright/foundation/ALooperRoster.h>
#include <mediautils/BatteryNotifier.h>
#include <memunreachable/memunreachable.h>
#include <system/audio.h>
#include <private/android_filesystem_config.h>
#include "ActivityManager.h"
#include "MediaRecorderClient.h"
#include "MediaPlayerService.h"
#include "MetadataRetrieverClient.h"
#include "MediaPlayerFactory.h"
#include "TestPlayerStub.h"
#include "nuplayer/NuPlayerDriver.h"
#include <OMX.h>
#include "HDCP.h"
#include "HTTPBase.h"
#include "RemoteDisplay.h"
namespace {
using android::media::Metadata;
using android::status_t;
using android::OK;
using android::BAD_VALUE;
using android::NOT_ENOUGH_DATA;
using android::Parcel;
// Max number of entries in the filter.
const int kMaxFilterSize = 64; // I pulled that out of thin air.
const float kMaxRequiredSpeed = 8.0f; // for PCM tracks allow up to 8x speedup.
// FIXME: Move all the metadata related function in the Metadata.cpp
// Unmarshall a filter from a Parcel.
// Filter format in a parcel:
//
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | number of entries (n) |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | metadata type 1 |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | metadata type 2 |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// ....
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | metadata type n |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
//
// @param p Parcel that should start with a filter.
// @param[out] filter On exit contains the list of metadata type to be
// filtered.
// @param[out] status On exit contains the status code to be returned.
// @return true if the parcel starts with a valid filter.
bool unmarshallFilter(const Parcel& p,
Metadata::Filter *filter,
status_t *status)
{
int32_t val;
if (p.readInt32(&val) != OK)
{
ALOGE("Failed to read filter's length");
*status = NOT_ENOUGH_DATA;
return false;
}
if( val > kMaxFilterSize || val < 0)
{
ALOGE("Invalid filter len %d", val);
*status = BAD_VALUE;
return false;
}
const size_t num = val;
filter->clear();
filter->setCapacity(num);
size_t size = num * sizeof(Metadata::Type);
if (p.dataAvail() < size)
{
ALOGE("Filter too short expected %zu but got %zu", size, p.dataAvail());
*status = NOT_ENOUGH_DATA;
return false;
}
const Metadata::Type *data =
static_cast<const Metadata::Type*>(p.readInplace(size));
if (NULL == data)
{
ALOGE("Filter had no data");
*status = BAD_VALUE;
return false;
}
// TODO: The stl impl of vector would be more efficient here
// because it degenerates into a memcpy on pod types. Try to
// replace later or use stl::set.
for (size_t i = 0; i < num; ++i)
{
filter->add(*data);
++data;
}
*status = OK;
return true;
}
// @param filter Of metadata type.
// @param val To be searched.
// @return true if a match was found.
bool findMetadata(const Metadata::Filter& filter, const int32_t val)
{
// Deal with empty and ANY right away
if (filter.isEmpty()) return false;
if (filter[0] == Metadata::kAny) return true;
return filter.indexOf(val) >= 0;
}
} // anonymous namespace
namespace {
using android::Parcel;
using android::String16;
// marshalling tag indicating flattened utf16 tags
// keep in sync with frameworks/base/media/java/android/media/AudioAttributes.java
const int32_t kAudioAttributesMarshallTagFlattenTags = 1;
// Audio attributes format in a parcel:
//
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | usage |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | content_type |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | source |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | flags |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | kAudioAttributesMarshallTagFlattenTags | // ignore tags if not found
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | flattened tags in UTF16 |
// | ... |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
//
// @param p Parcel that contains audio attributes.
// @param[out] attributes On exit points to an initialized audio_attributes_t structure
// @param[out] status On exit contains the status code to be returned.
void unmarshallAudioAttributes(const Parcel& parcel, audio_attributes_t *attributes)
{
attributes->usage = (audio_usage_t) parcel.readInt32();
attributes->content_type = (audio_content_type_t) parcel.readInt32();
attributes->source = (audio_source_t) parcel.readInt32();
attributes->flags = (audio_flags_mask_t) parcel.readInt32();
const bool hasFlattenedTag = (parcel.readInt32() == kAudioAttributesMarshallTagFlattenTags);
if (hasFlattenedTag) {
// the tags are UTF16, convert to UTF8
String16 tags = parcel.readString16();
ssize_t realTagSize = utf16_to_utf8_length(tags.string(), tags.size());
if (realTagSize <= 0) {
strcpy(attributes->tags, "");
} else {
// copy the flattened string into the attributes as the destination for the conversion:
// copying array size -1, array for tags was calloc'd, no need to NULL-terminate it
size_t tagSize = realTagSize > AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 ?
AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 : realTagSize;
utf16_to_utf8(tags.string(), tagSize, attributes->tags,
sizeof(attributes->tags) / sizeof(attributes->tags[0]));
}
} else {
ALOGE("unmarshallAudioAttributes() received unflattened tags, ignoring tag values");
strcpy(attributes->tags, "");
}
}
} // anonymous namespace
namespace android {
extern ALooperRoster gLooperRoster;
static bool checkPermission(const char* permissionString) {
if (getpid() == IPCThreadState::self()->getCallingPid()) return true;
bool ok = checkCallingPermission(String16(permissionString));
if (!ok) ALOGE("Request requires %s", permissionString);
return ok;
}
// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround
/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4;
/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false;
void MediaPlayerService::instantiate() {
defaultServiceManager()->addService(
String16("media.player"), new MediaPlayerService());
}
MediaPlayerService::MediaPlayerService()
{
ALOGV("MediaPlayerService created");
mNextConnId = 1;
mBatteryAudio.refCount = 0;
for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
mBatteryAudio.deviceOn[i] = 0;
mBatteryAudio.lastTime[i] = 0;
mBatteryAudio.totalTime[i] = 0;
}
// speaker is on by default
mBatteryAudio.deviceOn[SPEAKER] = 1;
// reset battery stats
// if the mediaserver has crashed, battery stats could be left
// in bad state, reset the state upon service start.
BatteryNotifier::getInstance().noteResetVideo();
MediaPlayerFactory::registerBuiltinFactories();
}
MediaPlayerService::~MediaPlayerService()
{
ALOGV("MediaPlayerService destroyed");
}
sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(const String16 &opPackageName)
{
pid_t pid = IPCThreadState::self()->getCallingPid();
sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid, opPackageName);
wp<MediaRecorderClient> w = recorder;
Mutex::Autolock lock(mLock);
mMediaRecorderClients.add(w);
ALOGV("Create new media recorder client from pid %d", pid);
return recorder;
}
void MediaPlayerService::removeMediaRecorderClient(const wp<MediaRecorderClient>& client)
{
Mutex::Autolock lock(mLock);
mMediaRecorderClients.remove(client);
ALOGV("Delete media recorder client");
}
sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever()
{
pid_t pid = IPCThreadState::self()->getCallingPid();
sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid);
ALOGV("Create new media retriever from pid %d", pid);
return retriever;
}
sp<IMediaPlayer> MediaPlayerService::create(const sp<IMediaPlayerClient>& client,
audio_session_t audioSessionId)
{
pid_t pid = IPCThreadState::self()->getCallingPid();
int32_t connId = android_atomic_inc(&mNextConnId);
sp<Client> c = new Client(
this, pid, connId, client, audioSessionId,
IPCThreadState::self()->getCallingUid());
ALOGV("Create new client(%d) from pid %d, uid %d, ", connId, pid,
IPCThreadState::self()->getCallingUid());
wp<Client> w = c;
{
Mutex::Autolock lock(mLock);
mClients.add(w);
}
return c;
}
sp<IMediaCodecList> MediaPlayerService::getCodecList() const {
return MediaCodecList::getLocalInstance();
}
sp<IOMX> MediaPlayerService::getOMX() {
ALOGI("MediaPlayerService::getOMX");
Mutex::Autolock autoLock(mLock);
if (mOMX.get() == NULL) {
mOMX = new OMX;
}
return mOMX;
}
sp<IHDCP> MediaPlayerService::makeHDCP(bool createEncryptionModule) {
return new HDCP(createEncryptionModule);
}
sp<IRemoteDisplay> MediaPlayerService::listenForRemoteDisplay(
const String16 &opPackageName,
const sp<IRemoteDisplayClient>& client, const String8& iface) {
if (!checkPermission("android.permission.CONTROL_WIFI_DISPLAY")) {
return NULL;
}
return new RemoteDisplay(opPackageName, client, iface.string());
}
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, (mTrack != 0) ? mTrack->latency() : -1);
result.append(buffer);
snprintf(buffer, 255, " aux effect id(%d), send level (%f)\n",
mAuxEffectId, mSendLevel);
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 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 (mPlayer != NULL) {
mPlayer->dump(fd, args);
}
if (mAudioOutput != 0) {
mAudioOutput->dump(fd, args);
}
write(fd, "\n", 1);
return NO_ERROR;
}
/**
* The only arguments this understands right now are -c, -von and -voff,
* which are parsed by ALooperRoster::dump()
*/
status_t MediaPlayerService::dump(int fd, const Vector<String16>& args)
{
const size_t SIZE = 256;
char buffer[SIZE];
String8 result;
SortedVector< sp<Client> > clients; //to serialise the mutex unlock & client destruction.
SortedVector< sp<MediaRecorderClient> > mediaRecorderClients;
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);
clients.add(c);
}
if (mMediaRecorderClients.size() == 0) {
result.append(" No media recorder client\n\n");
} else {
for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) {
sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote();
if (c != 0) {
snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n", c->mPid);
result.append(buffer);
write(fd, result.string(), result.size());
result = "\n";
c->dump(fd, args);
mediaRecorderClients.add(c);
}
}
}
result.append(" Files opened and/or mapped:\n");
snprintf(buffer, SIZE, "/proc/%d/maps", getpid());
FILE *f = fopen(buffer, "r");
if (f) {
while (!feof(f)) {
fgets(buffer, SIZE, f);
if (strstr(buffer, " /storage/") ||
strstr(buffer, " /system/sounds/") ||
strstr(buffer, " /data/") ||
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", getpid());
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", getpid(), 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, "/storage/") == linkto ||
strstr(linkto, "/system/sounds/") == linkto ||
strstr(linkto, "/data/") == 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");
}
gLooperRoster.dump(fd, args);
bool dumpMem = false;
bool unreachableMemory = false;
for (size_t i = 0; i < args.size(); i++) {
if (args[i] == String16("-m")) {
dumpMem = true;
} else if (args[i] == String16("--unreachable")) {
unreachableMemory = true;
}
}
if (dumpMem) {
result.append("\nDumping memory:\n");
std::string s = dumpMemoryAddresses(100 /* limit */);
result.append(s.c_str(), s.size());
}
if (unreachableMemory) {
result.append("\nDumping unreachable memory:\n");
// TODO - should limit be an argument parameter?
std::string s = GetUnreachableMemoryString(true /* contents */, 10000 /* limit */);
result.append(s.c_str(), s.size());
}
}
write(fd, result.string(), result.size());
return NO_ERROR;
}
void MediaPlayerService::removeClient(const 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,
audio_session_t audioSessionId, uid_t uid)
{
ALOGV("Client(%d) constructor", connId);
mPid = pid;
mConnId = connId;
mService = service;
mClient = client;
mLoop = false;
mStatus = NO_INIT;
mAudioSessionId = audioSessionId;
mUID = uid;
mRetransmitEndpointValid = false;
mAudioAttributes = NULL;
#if CALLBACK_ANTAGONIZER
ALOGD("create Antagonizer");
mAntagonizer = new Antagonizer(notify, this);
#endif
}
MediaPlayerService::Client::~Client()
{
ALOGV("Client(%d) destructor pid = %d", mConnId, mPid);
mAudioOutput.clear();
wp<Client> client(this);
disconnect();
mService->removeClient(client);
if (mAudioAttributes != NULL) {
free(mAudioAttributes);
}
}
void MediaPlayerService::Client::disconnect()
{
ALOGV("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
ALOGD("kill Antagonizer");
mAntagonizer->kill();
#endif
p->reset();
}
disconnectNativeWindow();
IPCThreadState::self()->flushCommands();
}
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)) {
ALOGV("delete player");
p.clear();
}
if (p == NULL) {
p = MediaPlayerFactory::createPlayer(playerType, this, notify, mPid);
}
if (p != NULL) {
p->setUID(mUID);
}
return p;
}
MediaPlayerService::Client::ServiceDeathNotifier::ServiceDeathNotifier(
const sp<IBinder>& service,
const sp<MediaPlayerBase>& listener,
int which) {
mService = service;
mListener = listener;
mWhich = which;
}
MediaPlayerService::Client::ServiceDeathNotifier::~ServiceDeathNotifier() {
mService->unlinkToDeath(this);
}
void MediaPlayerService::Client::ServiceDeathNotifier::binderDied(const wp<IBinder>& /*who*/) {
sp<MediaPlayerBase> listener = mListener.promote();
if (listener != NULL) {
listener->sendEvent(MEDIA_ERROR, MEDIA_ERROR_SERVER_DIED, mWhich);
} else {
ALOGW("listener for process %d death is gone", mWhich);
}
}
sp<MediaPlayerBase> MediaPlayerService::Client::setDataSource_pre(
player_type playerType)
{
ALOGV("player type = %d", playerType);
// create the right type of player
sp<MediaPlayerBase> p = createPlayer(playerType);
if (p == NULL) {
return p;
}
sp<IServiceManager> sm = defaultServiceManager();
sp<IBinder> binder = sm->getService(String16("media.extractor"));
mExtractorDeathListener = new ServiceDeathNotifier(binder, p, MEDIAEXTRACTOR_PROCESS_DEATH);
binder->linkToDeath(mExtractorDeathListener);
binder = sm->getService(String16("media.codec"));
mCodecDeathListener = new ServiceDeathNotifier(binder, p, MEDIACODEC_PROCESS_DEATH);
binder->linkToDeath(mCodecDeathListener);
if (!p->hardwareOutput()) {
Mutex::Autolock l(mLock);
mAudioOutput = new AudioOutput(mAudioSessionId, IPCThreadState::self()->getCallingUid(),
mPid, mAudioAttributes);
static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
}
return p;
}
void MediaPlayerService::Client::setDataSource_post(
const sp<MediaPlayerBase>& p,
status_t status)
{
ALOGV(" setDataSource");
mStatus = status;
if (mStatus != OK) {
ALOGE(" error: %d", mStatus);
return;
}
// Set the re-transmission endpoint if one was chosen.
if (mRetransmitEndpointValid) {
mStatus = p->setRetransmitEndpoint(&mRetransmitEndpoint);
if (mStatus != NO_ERROR) {
ALOGE("setRetransmitEndpoint error: %d", mStatus);
}
}
if (mStatus == OK) {
mPlayer = p;
}
}
status_t MediaPlayerService::Client::setDataSource(
const sp<IMediaHTTPService> &httpService,
const char *url,
const KeyedVector<String8, String8> *headers)
{
ALOGV("setDataSource(%s)", url);
if (url == NULL)
return UNKNOWN_ERROR;
if ((strncmp(url, "http://", 7) == 0) ||
(strncmp(url, "https://", 8) == 0) ||
(strncmp(url, "rtsp://", 7) == 0)) {
if (!checkPermission("android.permission.INTERNET")) {
return PERMISSION_DENIED;
}
}
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)
{
ALOGE("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 = MediaPlayerFactory::getPlayerType(this, url);
sp<MediaPlayerBase> p = setDataSource_pre(playerType);
if (p == NULL) {
return NO_INIT;
}
setDataSource_post(p, p->setDataSource(httpService, url, headers));
return mStatus;
}
}
status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length)
{
ALOGV("setDataSource fd=%d (%s), offset=%lld, length=%lld",
fd, nameForFd(fd).c_str(), (long long) offset, (long long) length);
struct stat sb;
int ret = fstat(fd, &sb);
if (ret != 0) {
ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno));
return UNKNOWN_ERROR;
}
ALOGV("st_dev = %llu", static_cast<unsigned long long>(sb.st_dev));
ALOGV("st_mode = %u", sb.st_mode);
ALOGV("st_uid = %lu", static_cast<unsigned long>(sb.st_uid));
ALOGV("st_gid = %lu", static_cast<unsigned long>(sb.st_gid));
ALOGV("st_size = %llu", static_cast<unsigned long long>(sb.st_size));
if (offset >= sb.st_size) {
ALOGE("offset error");
return UNKNOWN_ERROR;
}
if (offset + length > sb.st_size) {
length = sb.st_size - offset;
ALOGV("calculated length = %lld", (long long)length);
}
player_type playerType = MediaPlayerFactory::getPlayerType(this,
fd,
offset,
length);
sp<MediaPlayerBase> p = setDataSource_pre(playerType);
if (p == NULL) {
return NO_INIT;
}
// now set data source
setDataSource_post(p, p->setDataSource(fd, offset, length));
return mStatus;
}
status_t MediaPlayerService::Client::setDataSource(
const sp<IStreamSource> &source) {
// create the right type of player
player_type playerType = MediaPlayerFactory::getPlayerType(this, source);
sp<MediaPlayerBase> p = setDataSource_pre(playerType);
if (p == NULL) {
return NO_INIT;
}
// now set data source
setDataSource_post(p, p->setDataSource(source));
return mStatus;
}
status_t MediaPlayerService::Client::setDataSource(
const sp<IDataSource> &source) {
sp<DataSource> dataSource = DataSource::CreateFromIDataSource(source);
player_type playerType = MediaPlayerFactory::getPlayerType(this, dataSource);
sp<MediaPlayerBase> p = setDataSource_pre(playerType);
if (p == NULL) {
return NO_INIT;
}
// now set data source
setDataSource_post(p, p->setDataSource(dataSource));
return mStatus;
}
void MediaPlayerService::Client::disconnectNativeWindow() {
if (mConnectedWindow != NULL) {
status_t err = native_window_api_disconnect(mConnectedWindow.get(),
NATIVE_WINDOW_API_MEDIA);
if (err != OK) {
ALOGW("native_window_api_disconnect returned an error: %s (%d)",
strerror(-err), err);
}
}
mConnectedWindow.clear();
}
status_t MediaPlayerService::Client::setVideoSurfaceTexture(
const sp<IGraphicBufferProducer>& bufferProducer)
{
ALOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, bufferProducer.get());
sp<MediaPlayerBase> p = getPlayer();
if (p == 0) return UNKNOWN_ERROR;
sp<IBinder> binder(IInterface::asBinder(bufferProducer));
if (mConnectedWindowBinder == binder) {
return OK;
}
sp<ANativeWindow> anw;
if (bufferProducer != NULL) {
anw = new Surface(bufferProducer, true /* controlledByApp */);
status_t err = native_window_api_connect(anw.get(),
NATIVE_WINDOW_API_MEDIA);
if (err != OK) {
ALOGE("setVideoSurfaceTexture failed: %d", err);
// Note that we must do the reset before disconnecting from the ANW.
// Otherwise queue/dequeue calls could be made on the disconnected
// ANW, which may result in errors.
reset();
disconnectNativeWindow();
return err;
}
}
// Note that we must set the player's new GraphicBufferProducer before
// disconnecting the old one. Otherwise queue/dequeue calls could be made
// on the disconnected ANW, which may result in errors.
status_t err = p->setVideoSurfaceTexture(bufferProducer);
disconnectNativeWindow();
mConnectedWindow = anw;
if (err == OK) {
mConnectedWindowBinder = binder;
} else {
disconnectNativeWindow();
}
return err;
}
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);
}
// This call doesn't need to access the native player.
status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter)
{
status_t status;
media::Metadata::Filter allow, drop;
if (unmarshallFilter(filter, &allow, &status) &&
unmarshallFilter(filter, &drop, &status)) {
Mutex::Autolock lock(mLock);
mMetadataAllow = allow;
mMetadataDrop = drop;
}
return status;
}
status_t MediaPlayerService::Client::getMetadata(
bool update_only, bool /*apply_filter*/, Parcel *reply)
{
sp<MediaPlayerBase> player = getPlayer();
if (player == 0) return UNKNOWN_ERROR;
status_t status;
// Placeholder for the return code, updated by the caller.
reply->writeInt32(-1);
media::Metadata::Filter ids;
// We don't block notifications while we fetch the data. We clear
// mMetadataUpdated first so we don't lose notifications happening
// during the rest of this call.
{
Mutex::Autolock lock(mLock);
if (update_only) {
ids = mMetadataUpdated;
}
mMetadataUpdated.clear();
}
media::Metadata metadata(reply);
metadata.appendHeader();
status = player->getMetadata(ids, reply);
if (status != OK) {
metadata.resetParcel();
ALOGE("getMetadata failed %d", status);
return status;
}
// FIXME: Implement filtering on the result. Not critical since
// filtering takes place on the update notifications already. This
// would be when all the metadata are fetch and a filter is set.
// Everything is fine, update the metadata length.
metadata.updateLength();
return OK;
}
status_t MediaPlayerService::Client::prepareAsync()
{
ALOGV("[%d] prepareAsync", mConnId);
sp<MediaPlayerBase> p = getPlayer();
if (p == 0) return UNKNOWN_ERROR;
status_t ret = p->prepareAsync();
#if CALLBACK_ANTAGONIZER
ALOGD("start Antagonizer");
if (ret == NO_ERROR) mAntagonizer->start();
#endif
return ret;
}
status_t MediaPlayerService::Client::start()
{
ALOGV("[%d] start", mConnId);
sp<MediaPlayerBase> p = getPlayer();
if (p == 0) return UNKNOWN_ERROR;
p->setLooping(mLoop);
return p->start();
}
status_t MediaPlayerService::Client::stop()
{
ALOGV("[%d] stop", mConnId);
sp<MediaPlayerBase> p = getPlayer();
if (p == 0) return UNKNOWN_ERROR;
return p->stop();
}
status_t MediaPlayerService::Client::pause()
{
ALOGV("[%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();
ALOGV("[%d] isPlaying: %d", mConnId, *state);
return NO_ERROR;
}
status_t MediaPlayerService::Client::setPlaybackSettings(const AudioPlaybackRate& rate)
{
ALOGV("[%d] setPlaybackSettings(%f, %f, %d, %d)",
mConnId, rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode);
sp<MediaPlayerBase> p = getPlayer();
if (p == 0) return UNKNOWN_ERROR;
return p->setPlaybackSettings(rate);
}
status_t MediaPlayerService::Client::getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */)
{
sp<MediaPlayerBase> p = getPlayer();
if (p == 0) return UNKNOWN_ERROR;
status_t ret = p->getPlaybackSettings(rate);
if (ret == NO_ERROR) {
ALOGV("[%d] getPlaybackSettings(%f, %f, %d, %d)",
mConnId, rate->mSpeed, rate->mPitch, rate->mFallbackMode, rate->mStretchMode);
} else {
ALOGV("[%d] getPlaybackSettings returned %d", mConnId, ret);
}
return ret;
}
status_t MediaPlayerService::Client::setSyncSettings(
const AVSyncSettings& sync, float videoFpsHint)
{
ALOGV("[%d] setSyncSettings(%u, %u, %f, %f)",
mConnId, sync.mSource, sync.mAudioAdjustMode, sync.mTolerance, videoFpsHint);
sp<MediaPlayerBase> p = getPlayer();
if (p == 0) return UNKNOWN_ERROR;
return p->setSyncSettings(sync, videoFpsHint);
}
status_t MediaPlayerService::Client::getSyncSettings(
AVSyncSettings* sync /* nonnull */, float* videoFps /* nonnull */)
{
sp<MediaPlayerBase> p = getPlayer();
if (p == 0) return UNKNOWN_ERROR;
status_t ret = p->getSyncSettings(sync, videoFps);
if (ret == NO_ERROR) {
ALOGV("[%d] getSyncSettings(%u, %u, %f, %f)",
mConnId, sync->mSource, sync->mAudioAdjustMode, sync->mTolerance, *videoFps);
} else {
ALOGV("[%d] getSyncSettings returned %d", mConnId, ret);
}
return ret;
}
status_t MediaPlayerService::Client::getCurrentPosition(int *msec)
{
ALOGV("getCurrentPosition");
sp<MediaPlayerBase> p = getPlayer();
if (p == 0) return UNKNOWN_ERROR;
status_t ret = p->getCurrentPosition(msec);
if (ret == NO_ERROR) {
ALOGV("[%d] getCurrentPosition = %d", mConnId, *msec);
} else {
ALOGE("getCurrentPosition returned %d", ret);
}
return ret;
}
status_t MediaPlayerService::Client::getDuration(int *msec)
{
ALOGV("getDuration");
sp<MediaPlayerBase> p = getPlayer();
if (p == 0) return UNKNOWN_ERROR;
status_t ret = p->getDuration(msec);
if (ret == NO_ERROR) {
ALOGV("[%d] getDuration = %d", mConnId, *msec);
} else {
ALOGE("getDuration returned %d", ret);
}
return ret;
}
status_t MediaPlayerService::Client::setNextPlayer(const sp<IMediaPlayer>& player) {
ALOGV("setNextPlayer");
Mutex::Autolock l(mLock);
sp<Client> c = static_cast<Client*>(player.get());
mNextClient = c;
if (c != NULL) {
if (mAudioOutput != NULL) {
mAudioOutput->setNextOutput(c->mAudioOutput);
} else if ((mPlayer != NULL) && !mPlayer->hardwareOutput()) {
ALOGE("no current audio output");
}
if ((mPlayer != NULL) && (mNextClient->getPlayer() != NULL)) {
mPlayer->setNextPlayer(mNextClient->getPlayer());
}
}
return OK;
}
status_t MediaPlayerService::Client::seekTo(int msec)
{
ALOGV("[%d] seekTo(%d)", mConnId, msec);
sp<MediaPlayerBase> p = getPlayer();
if (p == 0) return UNKNOWN_ERROR;
return p->seekTo(msec);
}
status_t MediaPlayerService::Client::reset()
{
ALOGV("[%d] reset", mConnId);
mRetransmitEndpointValid = false;
sp<MediaPlayerBase> p = getPlayer();
if (p == 0) return UNKNOWN_ERROR;
return p->reset();
}
status_t MediaPlayerService::Client::setAudioStreamType(audio_stream_type_t type)
{
ALOGV("[%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::setAudioAttributes_l(const Parcel &parcel)
{
if (mAudioAttributes != NULL) { free(mAudioAttributes); }
mAudioAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t));
if (mAudioAttributes == NULL) {
return NO_MEMORY;
}
unmarshallAudioAttributes(parcel, mAudioAttributes);
ALOGV("setAudioAttributes_l() usage=%d content=%d flags=0x%x tags=%s",
mAudioAttributes->usage, mAudioAttributes->content_type, mAudioAttributes->flags,
mAudioAttributes->tags);
if (mAudioOutput != 0) {
mAudioOutput->setAudioAttributes(mAudioAttributes);
}
return NO_ERROR;
}
status_t MediaPlayerService::Client::setLooping(int loop)
{
ALOGV("[%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)
{
ALOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume);
// for hardware output, call player instead
sp<MediaPlayerBase> p = getPlayer();
{
Mutex::Autolock l(mLock);
if (p != 0 && p->hardwareOutput()) {
MediaPlayerHWInterface* hwp =
reinterpret_cast<MediaPlayerHWInterface*>(p.get());
return hwp->setVolume(leftVolume, rightVolume);
} else {
if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume);
return NO_ERROR;
}
}
return NO_ERROR;
}
status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level)
{
ALOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level);
Mutex::Autolock l(mLock);
if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level);
return NO_ERROR;
}
status_t MediaPlayerService::Client::attachAuxEffect(int effectId)
{
ALOGV("[%d] attachAuxEffect(%d)", mConnId, effectId);
Mutex::Autolock l(mLock);
if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId);
return NO_ERROR;
}
status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) {
ALOGV("[%d] setParameter(%d)", mConnId, key);
switch (key) {
case KEY_PARAMETER_AUDIO_ATTRIBUTES:
{
Mutex::Autolock l(mLock);
return setAudioAttributes_l(request);
}
default:
sp<MediaPlayerBase> p = getPlayer();
if (p == 0) { return UNKNOWN_ERROR; }
return p->setParameter(key, request);
}
}
status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) {
ALOGV("[%d] getParameter(%d)", mConnId, key);
sp<MediaPlayerBase> p = getPlayer();
if (p == 0) return UNKNOWN_ERROR;
return p->getParameter(key, reply);
}
status_t MediaPlayerService::Client::setRetransmitEndpoint(
const struct sockaddr_in* endpoint) {
if (NULL != endpoint) {
uint32_t a = ntohl(endpoint->sin_addr.s_addr);
uint16_t p = ntohs(endpoint->sin_port);
ALOGV("[%d] setRetransmitEndpoint(%u.%u.%u.%u:%hu)", mConnId,
(a >> 24), (a >> 16) & 0xFF, (a >> 8) & 0xFF, (a & 0xFF), p);
} else {
ALOGV("[%d] setRetransmitEndpoint = <none>", mConnId);
}
sp<MediaPlayerBase> p = getPlayer();
// Right now, the only valid time to set a retransmit endpoint is before
// player selection has been made (since the presence or absence of a
// retransmit endpoint is going to determine which player is selected during
// setDataSource).
if (p != 0) return INVALID_OPERATION;
if (NULL != endpoint) {
mRetransmitEndpoint = *endpoint;
mRetransmitEndpointValid = true;
} else {
mRetransmitEndpointValid = false;
}
return NO_ERROR;
}
status_t MediaPlayerService::Client::getRetransmitEndpoint(
struct sockaddr_in* endpoint)
{
if (NULL == endpoint)
return BAD_VALUE;
sp<MediaPlayerBase> p = getPlayer();
if (p != NULL)
return p->getRetransmitEndpoint(endpoint);
if (!mRetransmitEndpointValid)
return NO_INIT;
*endpoint = mRetransmitEndpoint;
return NO_ERROR;
}
void MediaPlayerService::Client::notify(
void* cookie, int msg, int ext1, int ext2, const Parcel *obj)
{
Client* client = static_cast<Client*>(cookie);
if (client == NULL) {
return;
}
sp<IMediaPlayerClient> c;
{
Mutex::Autolock l(client->mLock);
c = client->mClient;
if (msg == MEDIA_PLAYBACK_COMPLETE && client->mNextClient != NULL) {
if (client->mAudioOutput != NULL)
client->mAudioOutput->switchToNextOutput();
client->mNextClient->start();
if (client->mNextClient->mClient != NULL) {
client->mNextClient->mClient->notify(
MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj);
}
}
}
if (MEDIA_INFO == msg &&
MEDIA_INFO_METADATA_UPDATE == ext1) {
const media::Metadata::Type metadata_type = ext2;
if(client->shouldDropMetadata(metadata_type)) {
return;
}
// Update the list of metadata that have changed. getMetadata
// also access mMetadataUpdated and clears it.
client->addNewMetadataUpdate(metadata_type);
}
if (c != NULL) {
ALOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2);
c->notify(msg, ext1, ext2, obj);
}
}
bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const
{
Mutex::Autolock lock(mLock);
if (findMetadata(mMetadataDrop, code)) {
return true;
}
if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) {
return false;
} else {
return true;
}
}
void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) {
Mutex::Autolock lock(mLock);
if (mMetadataUpdated.indexOf(metadata_type) < 0) {
mMetadataUpdated.add(metadata_type);
}
}
#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)
{
ALOGD("Antagonizer started");
Antagonizer* p = reinterpret_cast<Antagonizer*>(user);
while (!p->mExit) {
if (p->mActive) {
ALOGV("send event");
p->mCb(p->mClient, 0, 0, 0);
}
usleep(interval);
}
Mutex::Autolock _l(p->mLock);
p->mCondition.signal();
ALOGD("Antagonizer stopped");
return 0;
}
#endif
#undef LOG_TAG
#define LOG_TAG "AudioSink"
MediaPlayerService::AudioOutput::AudioOutput(audio_session_t sessionId, int uid, int pid,
const audio_attributes_t* attr)
: mCallback(NULL),
mCallbackCookie(NULL),
mCallbackData(NULL),
mStreamType(AUDIO_STREAM_MUSIC),
mLeftVolume(1.0),
mRightVolume(1.0),
mPlaybackRate(AUDIO_PLAYBACK_RATE_DEFAULT),
mSampleRateHz(0),
mMsecsPerFrame(0),
mFrameSize(0),
mSessionId(sessionId),
mUid(uid),
mPid(pid),
mSendLevel(0.0),
mAuxEffectId(0),
mFlags(AUDIO_OUTPUT_FLAG_NONE)
{
ALOGV("AudioOutput(%d)", sessionId);
if (attr != NULL) {
mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t));
if (mAttributes != NULL) {
memcpy(mAttributes, attr, sizeof(audio_attributes_t));
mStreamType = audio_attributes_to_stream_type(attr);
}
} else {
mAttributes = NULL;
}
setMinBufferCount();
}
MediaPlayerService::AudioOutput::~AudioOutput()
{
close();
free(mAttributes);
delete mCallbackData;
}
//static
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
}
}
// static
bool MediaPlayerService::AudioOutput::isOnEmulator()
{
setMinBufferCount(); // benign race wrt other threads
return mIsOnEmulator;
}
// static
int MediaPlayerService::AudioOutput::getMinBufferCount()
{
setMinBufferCount(); // benign race wrt other threads
return mMinBufferCount;
}
ssize_t MediaPlayerService::AudioOutput::bufferSize() const
{
Mutex::Autolock lock(mLock);
if (mTrack == 0) return NO_INIT;
return mTrack->frameCount() * mFrameSize;
}
ssize_t MediaPlayerService::AudioOutput::frameCount() const
{
Mutex::Autolock lock(mLock);
if (mTrack == 0) return NO_INIT;
return mTrack->frameCount();
}
ssize_t MediaPlayerService::AudioOutput::channelCount() const
{
Mutex::Autolock lock(mLock);
if (mTrack == 0) return NO_INIT;
return mTrack->channelCount();
}
ssize_t MediaPlayerService::AudioOutput::frameSize() const
{
Mutex::Autolock lock(mLock);
if (mTrack == 0) return NO_INIT;
return mFrameSize;
}
uint32_t MediaPlayerService::AudioOutput::latency () const
{
Mutex::Autolock lock(mLock);
if (mTrack == 0) return 0;
return mTrack->latency();
}
float MediaPlayerService::AudioOutput::msecsPerFrame() const
{
Mutex::Autolock lock(mLock);
return mMsecsPerFrame;
}
status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) const
{
Mutex::Autolock lock(mLock);
if (mTrack == 0) return NO_INIT;
return mTrack->getPosition(position);
}
status_t MediaPlayerService::AudioOutput::getTimestamp(AudioTimestamp &ts) const
{
Mutex::Autolock lock(mLock);
if (mTrack == 0) return NO_INIT;
return mTrack->getTimestamp(ts);
}
// TODO: Remove unnecessary calls to getPlayedOutDurationUs()
// as it acquires locks and may query the audio driver.
//
// Some calls could conceivably retrieve extrapolated data instead of
// accessing getTimestamp() or getPosition() every time a data buffer with
// a media time is received.
//
// Calculate duration of played samples if played at normal rate (i.e., 1.0).
int64_t MediaPlayerService::AudioOutput::getPlayedOutDurationUs(int64_t nowUs) const
{
Mutex::Autolock lock(mLock);
if (mTrack == 0 || mSampleRateHz == 0) {
return 0;
}
uint32_t numFramesPlayed;
int64_t numFramesPlayedAt;
AudioTimestamp ts;
static const int64_t kStaleTimestamp100ms = 100000;
status_t res = mTrack->getTimestamp(ts);
if (res == OK) { // case 1: mixing audio tracks and offloaded tracks.
numFramesPlayed = ts.mPosition;
numFramesPlayedAt = ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000;
const int64_t timestampAge = nowUs - numFramesPlayedAt;
if (timestampAge > kStaleTimestamp100ms) {
// This is an audio FIXME.
// getTimestamp returns a timestamp which may come from audio mixing threads.
// After pausing, the MixerThread may go idle, thus the mTime estimate may
// become stale. Assuming that the MixerThread runs 20ms, with FastMixer at 5ms,
// the max latency should be about 25ms with an average around 12ms (to be verified).
// For safety we use 100ms.
ALOGV("getTimestamp: returned stale timestamp nowUs(%lld) numFramesPlayedAt(%lld)",
(long long)nowUs, (long long)numFramesPlayedAt);
numFramesPlayedAt = nowUs - kStaleTimestamp100ms;
}
//ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAt);
} else if (res == WOULD_BLOCK) { // case 2: transitory state on start of a new track
numFramesPlayed = 0;
numFramesPlayedAt = nowUs;
//ALOGD("getTimestamp: WOULD_BLOCK %d %lld",
// numFramesPlayed, (long long)numFramesPlayedAt);
} else { // case 3: transitory at new track or audio fast tracks.
res = mTrack->getPosition(&numFramesPlayed);
CHECK_EQ(res, (status_t)OK);
numFramesPlayedAt = nowUs;
numFramesPlayedAt += 1000LL * mTrack->latency() / 2; /* XXX */
//ALOGD("getPosition: %u %lld", numFramesPlayed, (long long)numFramesPlayedAt);
}
// CHECK_EQ(numFramesPlayed & (1 << 31), 0); // can't be negative until 12.4 hrs, test
// TODO: remove the (int32_t) casting below as it may overflow at 12.4 hours.
int64_t durationUs = (int64_t)((int32_t)numFramesPlayed * 1000000LL / mSampleRateHz)
+ nowUs - numFramesPlayedAt;
if (durationUs < 0) {
// Occurs when numFramesPlayed position is very small and the following:
// (1) In case 1, the time nowUs is computed before getTimestamp() is called and
// numFramesPlayedAt is greater than nowUs by time more than numFramesPlayed.
// (2) In case 3, using getPosition and adding mAudioSink->latency() to
// numFramesPlayedAt, by a time amount greater than numFramesPlayed.
//
// Both of these are transitory conditions.
ALOGV("getPlayedOutDurationUs: negative duration %lld set to zero", (long long)durationUs);
durationUs = 0;
}
ALOGV("getPlayedOutDurationUs(%lld) nowUs(%lld) frames(%u) framesAt(%lld)",
(long long)durationUs, (long long)nowUs, numFramesPlayed, (long long)numFramesPlayedAt);
return durationUs;
}
status_t MediaPlayerService::AudioOutput::getFramesWritten(uint32_t *frameswritten) const
{
Mutex::Autolock lock(mLock);
if (mTrack == 0) return NO_INIT;
ExtendedTimestamp ets;
status_t status = mTrack->getTimestamp(&ets);
if (status == OK || status == WOULD_BLOCK) {
*frameswritten = (uint32_t)ets.mPosition[ExtendedTimestamp::LOCATION_CLIENT];
}
return status;
}
status_t MediaPlayerService::AudioOutput::setParameters(const String8& keyValuePairs)
{
Mutex::Autolock lock(mLock);
if (mTrack == 0) return NO_INIT;
return mTrack->setParameters(keyValuePairs);
}
String8 MediaPlayerService::AudioOutput::getParameters(const String8& keys)
{
Mutex::Autolock lock(mLock);
if (mTrack == 0) return String8::empty();
return mTrack->getParameters(keys);
}
void MediaPlayerService::AudioOutput::setAudioAttributes(const audio_attributes_t * attributes) {
Mutex::Autolock lock(mLock);
if (attributes == NULL) {
free(mAttributes);
mAttributes = NULL;
} else {
if (mAttributes == NULL) {
mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t));
}
memcpy(mAttributes, attributes, sizeof(audio_attributes_t));
mStreamType = audio_attributes_to_stream_type(attributes);
}
}
void MediaPlayerService::AudioOutput::setAudioStreamType(audio_stream_type_t streamType)
{
Mutex::Autolock lock(mLock);
// do not allow direct stream type modification if attributes have been set
if (mAttributes == NULL) {
mStreamType = streamType;
}
}
void MediaPlayerService::AudioOutput::deleteRecycledTrack_l()
{
ALOGV("deleteRecycledTrack_l");
if (mRecycledTrack != 0) {
if (mCallbackData != NULL) {
mCallbackData->setOutput(NULL);
mCallbackData->endTrackSwitch();
}
if ((mRecycledTrack->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) {
int32_t msec = 0;
if (!mRecycledTrack->stopped()) { // check if active
(void)mRecycledTrack->pendingDuration(&msec);
}
mRecycledTrack->stop(); // ensure full data drain
ALOGD("deleting recycled track, waiting for data drain (%d msec)", msec);
if (msec > 0) {
static const int32_t WAIT_LIMIT_MS = 3000;
if (msec > WAIT_LIMIT_MS) {
msec = WAIT_LIMIT_MS;
}
usleep(msec * 1000LL);
}
}
// An offloaded track isn't flushed because the STREAM_END is reported
// slightly prematurely to allow time for the gapless track switch
// but this means that if we decide not to recycle the track there
// could be a small amount of residual data still playing. We leave
// AudioFlinger to drain the track.
mRecycledTrack.clear();
close_l();
delete mCallbackData;
mCallbackData = NULL;
}
}
void MediaPlayerService::AudioOutput::close_l()
{
mTrack.clear();
}
status_t MediaPlayerService::AudioOutput::open(
uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask,
audio_format_t format, int bufferCount,
AudioCallback cb, void *cookie,
audio_output_flags_t flags,
const audio_offload_info_t *offloadInfo,
bool doNotReconnect,
uint32_t suggestedFrameCount)
{
ALOGV("open(%u, %d, 0x%x, 0x%x, %d, %d 0x%x)", sampleRate, channelCount, channelMask,
format, bufferCount, mSessionId, flags);
// offloading is only supported in callback mode for now.
// offloadInfo must be present if offload flag is set
if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) &&
((cb == NULL) || (offloadInfo == NULL))) {
return BAD_VALUE;
}
// compute frame count for the AudioTrack internal buffer
size_t frameCount;
if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) {
frameCount = 0; // AudioTrack will get frame count from AudioFlinger
} else {
// try to estimate the buffer processing fetch size from AudioFlinger.
// framesPerBuffer is approximate and generally correct, except when it's not :-).
uint32_t afSampleRate;
size_t afFrameCount;
if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) {
return NO_INIT;
}
if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) {
return NO_INIT;
}
const size_t framesPerBuffer =
(unsigned long long)sampleRate * afFrameCount / afSampleRate;
if (bufferCount == 0) {
// use suggestedFrameCount
bufferCount = (suggestedFrameCount + framesPerBuffer - 1) / framesPerBuffer;
}
// Check argument bufferCount against the mininum buffer count
if (bufferCount != 0 && bufferCount < mMinBufferCount) {
ALOGV("bufferCount (%d) increased to %d", bufferCount, mMinBufferCount);
bufferCount = mMinBufferCount;
}
// if frameCount is 0, then AudioTrack will get frame count from AudioFlinger
// which will be the minimum size permitted.
frameCount = bufferCount * framesPerBuffer;
}
if (channelMask == CHANNEL_MASK_USE_CHANNEL_ORDER) {
channelMask = audio_channel_out_mask_from_count(channelCount);
if (0 == channelMask) {
ALOGE("open() error, can\'t derive mask for %d audio channels", channelCount);
return NO_INIT;
}
}
Mutex::Autolock lock(mLock);
mCallback = cb;
mCallbackCookie = cookie;
// Check whether we can recycle the track
bool reuse = false;
bool bothOffloaded = false;
if (mRecycledTrack != 0) {
// check whether we are switching between two offloaded tracks
bothOffloaded = (flags & mRecycledTrack->getFlags()
& AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0;
// check if the existing track can be reused as-is, or if a new track needs to be created.
reuse = true;
if ((mCallbackData == NULL && mCallback != NULL) ||
(mCallbackData != NULL && mCallback == NULL)) {
// recycled track uses callbacks but the caller wants to use writes, or vice versa
ALOGV("can't chain callback and write");
reuse = false;
} else if ((mRecycledTrack->getSampleRate() != sampleRate) ||
(mRecycledTrack->channelCount() != (uint32_t)channelCount) ) {
ALOGV("samplerate, channelcount differ: %u/%u Hz, %u/%d ch",
mRecycledTrack->getSampleRate(), sampleRate,
mRecycledTrack->channelCount(), channelCount);
reuse = false;
} else if (flags != mFlags) {
ALOGV("output flags differ %08x/%08x", flags, mFlags);
reuse = false;
} else if (mRecycledTrack->format() != format) {
reuse = false;
}
} else {
ALOGV("no track available to recycle");
}
ALOGV_IF(bothOffloaded, "both tracks offloaded");
// If we can't recycle and both tracks are offloaded
// we must close the previous output before opening a new one
if (bothOffloaded && !reuse) {
ALOGV("both offloaded and not recycling");
deleteRecycledTrack_l();
}
sp<AudioTrack> t;
CallbackData *newcbd = NULL;
// We don't attempt to create a new track if we are recycling an
// offloaded track. But, if we are recycling a non-offloaded or we
// are switching where one is offloaded and one isn't then we create
// the new track in advance so that we can read additional stream info
if (!(reuse && bothOffloaded)) {
ALOGV("creating new AudioTrack");
if (mCallback != NULL) {
newcbd = new CallbackData(this);
t = new AudioTrack(
mStreamType,
sampleRate,
format,
channelMask,
frameCount,
flags,
CallbackWrapper,
newcbd,
0, // notification frames
mSessionId,
AudioTrack::TRANSFER_CALLBACK,
offloadInfo,
mUid,
mPid,
mAttributes,
doNotReconnect);
} else {
// TODO: Due to buffer memory concerns, we use a max target playback speed
// based on mPlaybackRate at the time of open (instead of kMaxRequiredSpeed),
// also clamping the target speed to 1.0 <= targetSpeed <= kMaxRequiredSpeed.
const float targetSpeed =
std::min(std::max(mPlaybackRate.mSpeed, 1.0f), kMaxRequiredSpeed);
ALOGW_IF(targetSpeed != mPlaybackRate.mSpeed,
"track target speed:%f clamped from playback speed:%f",
targetSpeed, mPlaybackRate.mSpeed);
t = new AudioTrack(
mStreamType,
sampleRate,
format,
channelMask,
frameCount,
flags,
NULL, // callback
NULL, // user data
0, // notification frames
mSessionId,
AudioTrack::TRANSFER_DEFAULT,
NULL, // offload info
mUid,
mPid,
mAttributes,
doNotReconnect,
targetSpeed);
}
if ((t == 0) || (t->initCheck() != NO_ERROR)) {
ALOGE("Unable to create audio track");
delete newcbd;
// t goes out of scope, so reference count drops to zero
return NO_INIT;
} else {
// successful AudioTrack initialization implies a legacy stream type was generated
// from the audio attributes
mStreamType = t->streamType();
}
}
if (reuse) {
CHECK(mRecycledTrack != NULL);
if (!bothOffloaded) {
if (mRecycledTrack->frameCount() != t->frameCount()) {
ALOGV("framecount differs: %zu/%zu frames",
mRecycledTrack->frameCount(), t->frameCount());
reuse = false;
}
}
if (reuse) {
ALOGV("chaining to next output and recycling track");
close_l();
mTrack = mRecycledTrack;
mRecycledTrack.clear();
if (mCallbackData != NULL) {
mCallbackData->setOutput(this);
}
delete newcbd;
return OK;
}
}
// we're not going to reuse the track, unblock and flush it
// this was done earlier if both tracks are offloaded
if (!bothOffloaded) {
deleteRecycledTrack_l();
}
CHECK((t != NULL) && ((mCallback == NULL) || (newcbd != NULL)));
mCallbackData = newcbd;
ALOGV("setVolume");
t->setVolume(mLeftVolume, mRightVolume);
mSampleRateHz = sampleRate;
mFlags = flags;
mMsecsPerFrame = 1E3f / (mPlaybackRate.mSpeed * sampleRate);
mFrameSize = t->frameSize();
mTrack = t;
status_t res = NO_ERROR;
// Note some output devices may give us a direct track even though we don't specify it.
// Example: Line application b/17459982.
if ((t->getFlags() & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD | AUDIO_OUTPUT_FLAG_DIRECT)) == 0) {
res = t->setPlaybackRate(mPlaybackRate);
if (res == NO_ERROR) {
t->setAuxEffectSendLevel(mSendLevel);
res = t->attachAuxEffect(mAuxEffectId);
}
}
ALOGV("open() DONE status %d", res);
return res;
}
status_t MediaPlayerService::AudioOutput::start()
{
ALOGV("start");
Mutex::Autolock lock(mLock);
if (mCallbackData != NULL) {
mCallbackData->endTrackSwitch();
}
if (mTrack != 0) {
mTrack->setVolume(mLeftVolume, mRightVolume);
mTrack->setAuxEffectSendLevel(mSendLevel);
return mTrack->start();
}
return NO_INIT;
}
void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) {
Mutex::Autolock lock(mLock);
mNextOutput = nextOutput;
}
void MediaPlayerService::AudioOutput::switchToNextOutput() {
ALOGV("switchToNextOutput");
// Try to acquire the callback lock before moving track (without incurring deadlock).
const unsigned kMaxSwitchTries = 100;
Mutex::Autolock lock(mLock);
for (unsigned tries = 0;;) {
if (mTrack == 0) {
return;
}
if (mNextOutput != NULL && mNextOutput != this) {
if (mCallbackData != NULL) {
// two alternative approaches
#if 1
CallbackData *callbackData = mCallbackData;
mLock.unlock();
// proper acquisition sequence
callbackData->lock();
mLock.lock();
// Caution: it is unlikely that someone deleted our callback or changed our target
if (callbackData != mCallbackData || mNextOutput == NULL || mNextOutput == this) {
// fatal if we are starved out.
LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries,
"switchToNextOutput() cannot obtain correct lock sequence");
callbackData->unlock();
continue;
}
callbackData->mSwitching = true; // begin track switch
#else
// tryBeginTrackSwitch() returns false if the callback has the lock.
if (!mCallbackData->tryBeginTrackSwitch()) {
// fatal if we are starved out.
LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries,
"switchToNextOutput() cannot obtain callback lock");
mLock.unlock();
usleep(5 * 1000 /* usec */); // allow callback to use AudioOutput
mLock.lock();
continue;
}
#endif
}
Mutex::Autolock nextLock(mNextOutput->mLock);
// If the next output track is not NULL, then it has been
// opened already for playback.
// This is possible even without the next player being started,
// for example, the next player could be prepared and seeked.
//
// Presuming it isn't advisable to force the track over.
if (mNextOutput->mTrack == NULL) {
ALOGD("Recycling track for gapless playback");
delete mNextOutput->mCallbackData;
mNextOutput->mCallbackData = mCallbackData;
mNextOutput->mRecycledTrack = mTrack;
mNextOutput->mSampleRateHz = mSampleRateHz;
mNextOutput->mMsecsPerFrame = mMsecsPerFrame;
mNextOutput->mFlags = mFlags;
mNextOutput->mFrameSize = mFrameSize;
close_l();
mCallbackData = NULL; // destruction handled by mNextOutput
} else {
ALOGW("Ignoring gapless playback because next player has already started");
// remove track in case resource needed for future players.
if (mCallbackData != NULL) {
mCallbackData->endTrackSwitch(); // release lock for callbacks before close.
}
close_l();
}
}
break;
}
}
ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size, bool blocking)
{
Mutex::Autolock lock(mLock);
LOG_ALWAYS_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback.");
//ALOGV("write(%p, %u)", buffer, size);
if (mTrack != 0) {
return mTrack->write(buffer, size, blocking);
}
return NO_INIT;
}
void MediaPlayerService::AudioOutput::stop()
{
ALOGV("stop");
Mutex::Autolock lock(mLock);
if (mTrack != 0) mTrack->stop();
}
void MediaPlayerService::AudioOutput::flush()
{
ALOGV("flush");
Mutex::Autolock lock(mLock);
if (mTrack != 0) mTrack->flush();
}
void MediaPlayerService::AudioOutput::pause()
{
ALOGV("pause");
Mutex::Autolock lock(mLock);
if (mTrack != 0) mTrack->pause();
}
void MediaPlayerService::AudioOutput::close()
{
ALOGV("close");
sp<AudioTrack> track;
{
Mutex::Autolock lock(mLock);
track = mTrack;
close_l(); // clears mTrack
}
// destruction of the track occurs outside of mutex.
}
void MediaPlayerService::AudioOutput::setVolume(float left, float right)
{
ALOGV("setVolume(%f, %f)", left, right);
Mutex::Autolock lock(mLock);
mLeftVolume = left;
mRightVolume = right;
if (mTrack != 0) {
mTrack->setVolume(left, right);
}
}
status_t MediaPlayerService::AudioOutput::setPlaybackRate(const AudioPlaybackRate &rate)
{
ALOGV("setPlaybackRate(%f %f %d %d)",
rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode);
Mutex::Autolock lock(mLock);
if (mTrack == 0) {
// remember rate so that we can set it when the track is opened
mPlaybackRate = rate;
return OK;
}
status_t res = mTrack->setPlaybackRate(rate);
if (res != NO_ERROR) {
return res;
}
// rate.mSpeed is always greater than 0 if setPlaybackRate succeeded
CHECK_GT(rate.mSpeed, 0.f);
mPlaybackRate = rate;
if (mSampleRateHz != 0) {
mMsecsPerFrame = 1E3f / (rate.mSpeed * mSampleRateHz);
}
return res;
}
status_t MediaPlayerService::AudioOutput::getPlaybackRate(AudioPlaybackRate *rate)
{
ALOGV("setPlaybackRate");
Mutex::Autolock lock(mLock);
if (mTrack == 0) {
return NO_INIT;
}
*rate = mTrack->getPlaybackRate();
return NO_ERROR;
}
status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level)
{
ALOGV("setAuxEffectSendLevel(%f)", level);
Mutex::Autolock lock(mLock);
mSendLevel = level;
if (mTrack != 0) {
return mTrack->setAuxEffectSendLevel(level);
}
return NO_ERROR;
}
status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId)
{
ALOGV("attachAuxEffect(%d)", effectId);
Mutex::Autolock lock(mLock);
mAuxEffectId = effectId;
if (mTrack != 0) {
return mTrack->attachAuxEffect(effectId);
}
return NO_ERROR;
}
// static
void MediaPlayerService::AudioOutput::CallbackWrapper(
int event, void *cookie, void *info) {
//ALOGV("callbackwrapper");
CallbackData *data = (CallbackData*)cookie;
// lock to ensure we aren't caught in the middle of a track switch.
data->lock();
AudioOutput *me = data->getOutput();
AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info;
if (me == NULL) {
// no output set, likely because the track was scheduled to be reused
// by another player, but the format turned out to be incompatible.
data->unlock();
if (buffer != NULL) {
buffer->size = 0;
}
return;
}
switch(event) {
case AudioTrack::EVENT_MORE_DATA: {
size_t actualSize = (*me->mCallback)(
me, buffer->raw, buffer->size, me->mCallbackCookie,
CB_EVENT_FILL_BUFFER);
// Log when no data is returned from the callback.
// (1) We may have no data (especially with network streaming sources).
// (2) We may have reached the EOS and the audio track is not stopped yet.
// Note that AwesomePlayer/AudioPlayer will only return zero size when it reaches the EOS.
// NuPlayerRenderer will return zero when it doesn't have data (it doesn't block to fill).
//
// This is a benign busy-wait, with the next data request generated 10 ms or more later;
// nevertheless for power reasons, we don't want to see too many of these.
ALOGV_IF(actualSize == 0 && buffer->size > 0, "callbackwrapper: empty buffer returned");
buffer->size = actualSize;
} break;
case AudioTrack::EVENT_STREAM_END:
// currently only occurs for offloaded callbacks
ALOGV("callbackwrapper: deliver EVENT_STREAM_END");
(*me->mCallback)(me, NULL /* buffer */, 0 /* size */,
me->mCallbackCookie, CB_EVENT_STREAM_END);
break;
case AudioTrack::EVENT_NEW_IAUDIOTRACK :
ALOGV("callbackwrapper: deliver EVENT_TEAR_DOWN");
(*me->mCallback)(me, NULL /* buffer */, 0 /* size */,
me->mCallbackCookie, CB_EVENT_TEAR_DOWN);
break;
case AudioTrack::EVENT_UNDERRUN:
// This occurs when there is no data available, typically
// when there is a failure to supply data to the AudioTrack. It can also
// occur in non-offloaded mode when the audio device comes out of standby.
//
// If an AudioTrack underruns it outputs silence. Since this happens suddenly
// it may sound like an audible pop or glitch.
//
// The underrun event is sent once per track underrun; the condition is reset
// when more data is sent to the AudioTrack.
ALOGD("callbackwrapper: EVENT_UNDERRUN (discarded)");
break;
default:
ALOGE("received unknown event type: %d inside CallbackWrapper !", event);
}
data->unlock();
}
audio_session_t MediaPlayerService::AudioOutput::getSessionId() const
{
Mutex::Autolock lock(mLock);
return mSessionId;
}
uint32_t MediaPlayerService::AudioOutput::getSampleRate() const
{
Mutex::Autolock lock(mLock);
if (mTrack == 0) return 0;
return mTrack->getSampleRate();
}
int64_t MediaPlayerService::AudioOutput::getBufferDurationInUs() const
{
Mutex::Autolock lock(mLock);
if (mTrack == 0) {
return 0;
}
int64_t duration;
if (mTrack->getBufferDurationInUs(&duration) != OK) {
return 0;
}
return duration;
}
////////////////////////////////////////////////////////////////////////////////
struct CallbackThread : public Thread {
CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink,
MediaPlayerBase::AudioSink::AudioCallback cb,
void *cookie);
protected:
virtual ~CallbackThread();
virtual bool threadLoop();
private:
wp<MediaPlayerBase::AudioSink> mSink;
MediaPlayerBase::AudioSink::AudioCallback mCallback;
void *mCookie;
void *mBuffer;
size_t mBufferSize;
CallbackThread(const CallbackThread &);
CallbackThread &operator=(const CallbackThread &);
};
CallbackThread::CallbackThread(
const wp<MediaPlayerBase::AudioSink> &sink,
MediaPlayerBase::AudioSink::AudioCallback cb,
void *cookie)
: mSink(sink),
mCallback(cb),
mCookie(cookie),
mBuffer(NULL),
mBufferSize(0) {
}
CallbackThread::~CallbackThread() {
if (mBuffer) {
free(mBuffer);
mBuffer = NULL;
}
}
bool CallbackThread::threadLoop() {
sp<MediaPlayerBase::AudioSink> sink = mSink.promote();
if (sink == NULL) {
return false;
}
if (mBuffer == NULL) {
mBufferSize = sink->bufferSize();
mBuffer = malloc(mBufferSize);
}
size_t actualSize =
(*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie,
MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER);
if (actualSize > 0) {
sink->write(mBuffer, actualSize);
// Could return false on sink->write() error or short count.
// Not necessarily appropriate but would work for AudioCache behavior.
}
return true;
}
////////////////////////////////////////////////////////////////////////////////
void MediaPlayerService::addBatteryData(uint32_t params)
{
Mutex::Autolock lock(mLock);
int32_t time = systemTime() / 1000000L;
// change audio output devices. This notification comes from AudioFlinger
if ((params & kBatteryDataSpeakerOn)
|| (params & kBatteryDataOtherAudioDeviceOn)) {
int deviceOn[NUM_AUDIO_DEVICES];
for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
deviceOn[i] = 0;
}
if ((params & kBatteryDataSpeakerOn)
&& (params & kBatteryDataOtherAudioDeviceOn)) {
deviceOn[SPEAKER_AND_OTHER] = 1;
} else if (params & kBatteryDataSpeakerOn) {
deviceOn[SPEAKER] = 1;
} else {
deviceOn[OTHER_AUDIO_DEVICE] = 1;
}
for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
if (mBatteryAudio.deviceOn[i] != deviceOn[i]){
if (mBatteryAudio.refCount > 0) { // if playing audio
if (!deviceOn[i]) {
mBatteryAudio.lastTime[i] += time;
mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i];
mBatteryAudio.lastTime[i] = 0;
} else {
mBatteryAudio.lastTime[i] = 0 - time;
}
}
mBatteryAudio.deviceOn[i] = deviceOn[i];
}
}
return;
}
// an audio stream is started
if (params & kBatteryDataAudioFlingerStart) {
// record the start time only if currently no other audio
// is being played
if (mBatteryAudio.refCount == 0) {
for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
if (mBatteryAudio.deviceOn[i]) {
mBatteryAudio.lastTime[i] -= time;
}
}
}
mBatteryAudio.refCount ++;
return;
} else if (params & kBatteryDataAudioFlingerStop) {
if (mBatteryAudio.refCount <= 0) {
ALOGW("Battery track warning: refCount is <= 0");
return;
}
// record the stop time only if currently this is the only
// audio being played
if (mBatteryAudio.refCount == 1) {
for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
if (mBatteryAudio.deviceOn[i]) {
mBatteryAudio.lastTime[i] += time;
mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i];
mBatteryAudio.lastTime[i] = 0;
}
}
}
mBatteryAudio.refCount --;
return;
}
int uid = IPCThreadState::self()->getCallingUid();
if (uid == AID_MEDIA) {
return;
}
int index = mBatteryData.indexOfKey(uid);
if (index < 0) { // create a new entry for this UID
BatteryUsageInfo info;
info.audioTotalTime = 0;
info.videoTotalTime = 0;
info.audioLastTime = 0;
info.videoLastTime = 0;
info.refCount = 0;
if (mBatteryData.add(uid, info) == NO_MEMORY) {
ALOGE("Battery track error: no memory for new app");
return;
}
}
BatteryUsageInfo &info = mBatteryData.editValueFor(uid);
if (params & kBatteryDataCodecStarted) {
if (params & kBatteryDataTrackAudio) {
info.audioLastTime -= time;
info.refCount ++;
}
if (params & kBatteryDataTrackVideo) {
info.videoLastTime -= time;
info.refCount ++;
}
} else {
if (info.refCount == 0) {
ALOGW("Battery track warning: refCount is already 0");
return;
} else if (info.refCount < 0) {
ALOGE("Battery track error: refCount < 0");
mBatteryData.removeItem(uid);
return;
}
if (params & kBatteryDataTrackAudio) {
info.audioLastTime += time;
info.refCount --;
}
if (params & kBatteryDataTrackVideo) {
info.videoLastTime += time;
info.refCount --;
}
// no stream is being played by this UID
if (info.refCount == 0) {
info.audioTotalTime += info.audioLastTime;
info.audioLastTime = 0;
info.videoTotalTime += info.videoLastTime;
info.videoLastTime = 0;
}
}
}
status_t MediaPlayerService::pullBatteryData(Parcel* reply) {
Mutex::Autolock lock(mLock);
// audio output devices usage
int32_t time = systemTime() / 1000000L; //in ms
int32_t totalTime;
for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
totalTime = mBatteryAudio.totalTime[i];
if (mBatteryAudio.deviceOn[i]
&& (mBatteryAudio.lastTime[i] != 0)) {
int32_t tmpTime = mBatteryAudio.lastTime[i] + time;
totalTime += tmpTime;
}
reply->writeInt32(totalTime);
// reset the total time
mBatteryAudio.totalTime[i] = 0;
}
// codec usage
BatteryUsageInfo info;
int size = mBatteryData.size();
reply->writeInt32(size);
int i = 0;
while (i < size) {
info = mBatteryData.valueAt(i);
reply->writeInt32(mBatteryData.keyAt(i)); //UID
reply->writeInt32(info.audioTotalTime);
reply->writeInt32(info.videoTotalTime);
info.audioTotalTime = 0;
info.videoTotalTime = 0;
// remove the UID entry where no stream is being played
if (info.refCount <= 0) {
mBatteryData.removeItemsAt(i);
size --;
i --;
}
i++;
}
return NO_ERROR;
}
} // namespace android