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ara-mdk / platform / frameworks / av / 92086e6d402dcad6e199325ef097d7707b3d1f83 / . / media / libmediaplayerservice / MediaPlayerService.cpp
blob: ec6ace162db5646252d72c7a5b5e6d842bac0ce8 [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/Vector.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/MediaErrors.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 "MidiFile.h"
#include "TestPlayerStub.h"
#include "StagefrightPlayer.h"
#include "nuplayer/NuPlayerDriver.h"
#include <OMX.h>
#include "Crypto.h"
#include "Drm.h"
#include "HDCP.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.
// 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 %d but got %d", 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 android {
static bool checkPermission(const char* permissionString) {
#ifndef HAVE_ANDROID_OS
return true;
#endif
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;
MediaPlayerFactory::registerBuiltinFactories();
}
MediaPlayerService::~MediaPlayerService()
{
ALOGV("MediaPlayerService destroyed");
}
sp<IMediaRecorder> MediaPlayerService::createMediaRecorder()
{
pid_t pid = IPCThreadState::self()->getCallingPid();
sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid);
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(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,
int 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<IOMX> MediaPlayerService::getOMX() {
Mutex::Autolock autoLock(mLock);
if (mOMX.get() == NULL) {
mOMX = new OMX;
}
return mOMX;
}
sp<ICrypto> MediaPlayerService::makeCrypto() {
return new Crypto;
}
sp<IDrm> MediaPlayerService::makeDrm() {
return new Drm;
}
sp<IHDCP> MediaPlayerService::makeHDCP(bool createEncryptionModule) {
return new HDCP(createEncryptionModule);
}
sp<IRemoteDisplay> MediaPlayerService::listenForRemoteDisplay(
const sp<IRemoteDisplayClient>& client, const String8& iface) {
if (!checkPermission("android.permission.CONTROL_WIFI_DISPLAY")) {
return NULL;
}
return new RemoteDisplay(client, iface.string());
}
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, (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
{
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;
}
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);
}
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);
}
}
}
result.append(" Files opened and/or mapped:\n");
snprintf(buffer, SIZE, "/proc/%d/maps", gettid());
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", gettid());
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", gettid(), 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");
}
bool dumpMem = false;
for (size_t i = 0; i < args.size(); i++) {
if (args[i] == String16("-m")) {
dumpMem = true;
}
}
if (dumpMem) {
dumpMemoryAddresses(fd);
}
}
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,
int 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;
#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);
}
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);
}
if (p != NULL) {
p->setUID(mUID);
}
return p;
}
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;
}
if (!p->hardwareOutput()) {
mAudioOutput = new AudioOutput(mAudioSessionId);
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 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(url, headers));
return mStatus;
}
}
status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length)
{
ALOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, 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", sb.st_dev);
ALOGV("st_mode = %u", sb.st_mode);
ALOGV("st_uid = %lu", sb.st_uid);
ALOGV("st_gid = %lu", sb.st_gid);
ALOGV("st_size = %llu", sb.st_size);
if (offset >= sb.st_size) {
ALOGE("offset error");
::close(fd);
return UNKNOWN_ERROR;
}
if (offset + length > sb.st_size) {
length = sb.st_size - offset;
ALOGV("calculated length = %lld", 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;
}
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(bufferProducer == NULL ? NULL :
bufferProducer->asBinder());
if (mConnectedWindowBinder == binder) {
return OK;
}
sp<ANativeWindow> anw;
if (bufferProducer != NULL) {
anw = new Surface(bufferProducer);
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::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::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);
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();
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
static size_t kDefaultHeapSize = 1024 * 1024; // 1MB
sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat)
{
ALOGV("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) {
ALOGD("Can't decode %s by path, use filedescriptor instead", url);
return mem;
}
player_type playerType =
MediaPlayerFactory::getPlayerType(NULL /* client */, url);
ALOGV("player type = %d", playerType);
// create the right type of player
sp<AudioCache> cache = new AudioCache(url);
player = MediaPlayerFactory::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;
ALOGV("prepare");
player->prepareAsync();
ALOGV("wait for prepare");
if (cache->wait() != NO_ERROR) goto Exit;
ALOGV("start");
player->start();
ALOGV("wait for playback complete");
cache->wait();
// in case of error, return what was successfully decoded.
if (cache->size() == 0) {
goto Exit;
}
mem = new MemoryBase(cache->getHeap(), 0, cache->size());
*pSampleRate = cache->sampleRate();
*pNumChannels = cache->channelCount();
*pFormat = cache->format();
ALOGV("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, audio_format_t* pFormat)
{
ALOGV("decode(%d, %lld, %lld)", fd, offset, length);
sp<MemoryBase> mem;
sp<MediaPlayerBase> player;
player_type playerType = MediaPlayerFactory::getPlayerType(NULL /* client */,
fd,
offset,
length);
ALOGV("player type = %d", playerType);
// create the right type of player
sp<AudioCache> cache = new AudioCache("decode_fd");
player = MediaPlayerFactory::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;
ALOGV("prepare");
player->prepareAsync();
ALOGV("wait for prepare");
if (cache->wait() != NO_ERROR) goto Exit;
ALOGV("start");
player->start();
ALOGV("wait for playback complete");
cache->wait();
// in case of error, return what was successfully decoded.
if (cache->size() == 0) {
goto Exit;
}
mem = new MemoryBase(cache->getHeap(), 0, cache->size());
*pSampleRate = cache->sampleRate();
*pNumChannels = cache->channelCount();
*pFormat = cache->format();
ALOGV("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(int sessionId)
: mCallback(NULL),
mCallbackCookie(NULL),
mCallbackData(NULL),
mBytesWritten(0),
mSessionId(sessionId),
mFlags(AUDIO_OUTPUT_FLAG_NONE) {
ALOGV("AudioOutput(%d)", sessionId);
mTrack = 0;
mRecycledTrack = 0;
mStreamType = AUDIO_STREAM_MUSIC;
mLeftVolume = 1.0;
mRightVolume = 1.0;
mPlaybackRatePermille = 1000;
mSampleRateHz = 0;
mMsecsPerFrame = 0;
mAuxEffectId = 0;
mSendLevel = 0.0;
setMinBufferCount();
}
MediaPlayerService::AudioOutput::~AudioOutput()
{
close();
delete mRecycledTrack;
delete mCallbackData;
}
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
{
if (mTrack == 0) return 0;
return mTrack->latency();
}
float MediaPlayerService::AudioOutput::msecsPerFrame() const
{
return mMsecsPerFrame;
}
status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) const
{
if (mTrack == 0) return NO_INIT;
return mTrack->getPosition(position);
}
status_t MediaPlayerService::AudioOutput::getFramesWritten(uint32_t *frameswritten) const
{
if (mTrack == 0) return NO_INIT;
*frameswritten = mBytesWritten / frameSize();
return OK;
}
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)
{
mCallback = cb;
mCallbackCookie = cookie;
// Check argument "bufferCount" against the mininum buffer count
if (bufferCount < mMinBufferCount) {
ALOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount);
bufferCount = mMinBufferCount;
}
ALOGV("open(%u, %d, 0x%x, %d, %d, %d)", sampleRate, channelCount, channelMask,
format, bufferCount, mSessionId);
uint32_t afSampleRate;
size_t afFrameCount;
uint32_t 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;
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;
}
}
AudioTrack *t;
CallbackData *newcbd = NULL;
if (mCallback != NULL) {
newcbd = new CallbackData(this);
t = new AudioTrack(
mStreamType,
sampleRate,
format,
channelMask,
frameCount,
flags,
CallbackWrapper,
newcbd,
0, // notification frames
mSessionId);
} else {
t = new AudioTrack(
mStreamType,
sampleRate,
format,
channelMask,
frameCount,
flags,
NULL,
NULL,
0,
mSessionId);
}
if ((t == 0) || (t->initCheck() != NO_ERROR)) {
ALOGE("Unable to create audio track");
delete t;
delete newcbd;
return NO_INIT;
}
if (mRecycledTrack) {
// check if the existing track can be reused as-is, or if a new track needs to be created.
bool 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() != channelCount) ||
(mRecycledTrack->frameCount() != t->frameCount())) {
ALOGV("samplerate, channelcount or framecount differ: %d/%d Hz, %d/%d ch, %d/%d frames",
mRecycledTrack->getSampleRate(), sampleRate,
mRecycledTrack->channelCount(), channelCount,
mRecycledTrack->frameCount(), t->frameCount());
reuse = false;
} else if (flags != mFlags) {
ALOGV("output flags differ %08x/%08x", flags, mFlags);
reuse = false;
}
if (reuse) {
ALOGV("chaining to next output");
close();
mTrack = mRecycledTrack;
mRecycledTrack = NULL;
if (mCallbackData != NULL) {
mCallbackData->setOutput(this);
}
delete t;
delete newcbd;
return OK;
}
// if we're not going to reuse the track, unblock and flush it
if (mCallbackData != NULL) {
mCallbackData->setOutput(NULL);
mCallbackData->endTrackSwitch();
}
mRecycledTrack->flush();
delete mRecycledTrack;
mRecycledTrack = NULL;
delete mCallbackData;
mCallbackData = NULL;
close();
}
mCallbackData = newcbd;
ALOGV("setVolume");
t->setVolume(mLeftVolume, mRightVolume);
mSampleRateHz = sampleRate;
mFlags = flags;
mMsecsPerFrame = mPlaybackRatePermille / (float) sampleRate;
uint32_t pos;
if (t->getPosition(&pos) == OK) {
mBytesWritten = uint64_t(pos) * t->frameSize();
}
mTrack = t;
status_t res = t->setSampleRate(mPlaybackRatePermille * mSampleRateHz / 1000);
if (res != NO_ERROR) {
return res;
}
t->setAuxEffectSendLevel(mSendLevel);
return t->attachAuxEffect(mAuxEffectId);;
}
void MediaPlayerService::AudioOutput::start()
{
ALOGV("start");
if (mCallbackData != NULL) {
mCallbackData->endTrackSwitch();
}
if (mTrack) {
mTrack->setVolume(mLeftVolume, mRightVolume);
mTrack->setAuxEffectSendLevel(mSendLevel);
mTrack->start();
}
}
void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) {
mNextOutput = nextOutput;
}
void MediaPlayerService::AudioOutput::switchToNextOutput() {
ALOGV("switchToNextOutput");
if (mNextOutput != NULL) {
if (mCallbackData != NULL) {
mCallbackData->beginTrackSwitch();
}
delete mNextOutput->mCallbackData;
mNextOutput->mCallbackData = mCallbackData;
mCallbackData = NULL;
mNextOutput->mRecycledTrack = mTrack;
mTrack = NULL;
mNextOutput->mSampleRateHz = mSampleRateHz;
mNextOutput->mMsecsPerFrame = mMsecsPerFrame;
mNextOutput->mBytesWritten = mBytesWritten;
mNextOutput->mFlags = mFlags;
}
}
ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size)
{
LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback.");
//ALOGV("write(%p, %u)", buffer, size);
if (mTrack) {
ssize_t ret = mTrack->write(buffer, size);
mBytesWritten += ret;
return ret;
}
return NO_INIT;
}
void MediaPlayerService::AudioOutput::stop()
{
ALOGV("stop");
if (mTrack) mTrack->stop();
}
void MediaPlayerService::AudioOutput::flush()
{
ALOGV("flush");
if (mTrack) mTrack->flush();
}
void MediaPlayerService::AudioOutput::pause()
{
ALOGV("pause");
if (mTrack) mTrack->pause();
}
void MediaPlayerService::AudioOutput::close()
{
ALOGV("close");
delete mTrack;
mTrack = 0;
}
void MediaPlayerService::AudioOutput::setVolume(float left, float right)
{
ALOGV("setVolume(%f, %f)", left, right);
mLeftVolume = left;
mRightVolume = right;
if (mTrack) {
mTrack->setVolume(left, right);
}
}
status_t MediaPlayerService::AudioOutput::setPlaybackRatePermille(int32_t ratePermille)
{
ALOGV("setPlaybackRatePermille(%d)", ratePermille);
status_t res = NO_ERROR;
if (mTrack) {
res = mTrack->setSampleRate(ratePermille * mSampleRateHz / 1000);
} else {
res = NO_INIT;
}
mPlaybackRatePermille = ratePermille;
if (mSampleRateHz != 0) {
mMsecsPerFrame = mPlaybackRatePermille / (float) mSampleRateHz;
}
return res;
}
status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level)
{
ALOGV("setAuxEffectSendLevel(%f)", level);
mSendLevel = level;
if (mTrack) {
return mTrack->setAuxEffectSendLevel(level);
}
return NO_ERROR;
}
status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId)
{
ALOGV("attachAuxEffect(%d)", effectId);
mAuxEffectId = effectId;
if (mTrack) {
return mTrack->attachAuxEffect(effectId);
}
return NO_ERROR;
}
// static
void MediaPlayerService::AudioOutput::CallbackWrapper(
int event, void *cookie, void *info) {
//ALOGV("callbackwrapper");
if (event != AudioTrack::EVENT_MORE_DATA) {
return;
}
CallbackData *data = (CallbackData*)cookie;
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();
buffer->size = 0;
return;
}
size_t actualSize = (*me->mCallback)(
me, buffer->raw, buffer->size, me->mCallbackCookie);
if (actualSize == 0 && buffer->size > 0 && me->mNextOutput == NULL) {
// We've reached EOS but the audio track is not stopped yet,
// keep playing silence.
memset(buffer->raw, 0, buffer->size);
actualSize = buffer->size;
}
buffer->size = actualSize;
data->unlock();
}
int MediaPlayerService::AudioOutput::getSessionId() const
{
return mSessionId;
}
#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::getPosition(uint32_t *position) const
{
if (position == 0) return BAD_VALUE;
*position = mSize;
return NO_ERROR;
}
status_t MediaPlayerService::AudioCache::getFramesWritten(uint32_t *written) const
{
if (written == 0) return BAD_VALUE;
*written = mSize;
return NO_ERROR;
}
////////////////////////////////////////////////////////////////////////////////
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);
if (actualSize > 0) {
sink->write(mBuffer, actualSize);
}
return true;
}
////////////////////////////////////////////////////////////////////////////////
status_t MediaPlayerService::AudioCache::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)
{
ALOGV("open(%u, %d, 0x%x, %d, %d)", sampleRate, channelCount, channelMask, format, bufferCount);
if (mHeap->getHeapID() < 0) {
return NO_INIT;
}
mSampleRate = sampleRate;
mChannelCount = (uint16_t)channelCount;
mFormat = format;
mMsecsPerFrame = 1.e3 / (float) sampleRate;
if (cb != NULL) {
mCallbackThread = new CallbackThread(this, cb, cookie);
}
return NO_ERROR;
}
void MediaPlayerService::AudioCache::start() {
if (mCallbackThread != NULL) {
mCallbackThread->run("AudioCache callback");
}
}
void MediaPlayerService::AudioCache::stop() {
if (mCallbackThread != NULL) {
mCallbackThread->requestExitAndWait();
}
}
ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size)
{
ALOGV("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;
ALOGV("memcpy(%p, %p, %u)", p, buffer, size);
if (mSize + size > mHeap->getSize()) {
ALOGE("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);
while (!mCommandComplete) {
mSignal.wait(mLock);
}
mCommandComplete = false;
if (mError == NO_ERROR) {
ALOGV("wait - success");
} else {
ALOGV("wait - error");
}
return mError;
}
void MediaPlayerService::AudioCache::notify(
void* cookie, int msg, int ext1, int ext2, const Parcel *obj)
{
ALOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2);
AudioCache* p = static_cast<AudioCache*>(cookie);
// ignore buffering messages
switch (msg)
{
case MEDIA_ERROR:
ALOGE("Error %d, %d occurred", ext1, ext2);
p->mError = ext1;
break;
case MEDIA_PREPARED:
ALOGV("prepared");
break;
case MEDIA_PLAYBACK_COMPLETE:
ALOGV("playback complete");
break;
default:
ALOGV("ignored");
return;
}
// wake up thread
Mutex::Autolock lock(p->mLock);
p->mCommandComplete = true;
p->mSignal.signal();
}
int MediaPlayerService::AudioCache::getSessionId() const
{
return 0;
}
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 sudio 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