diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 0c1ab3c..514fcb1 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -29,7 +29,6 @@
 #include <utils/Log.h>
 #include <utils/Trace.h>
 #include <binder/Parcel.h>
-#include <binder/IPCThreadState.h>
 #include <utils/String16.h>
 #include <utils/threads.h>
 #include <utils/Atomic.h>
@@ -38,15 +37,8 @@
 #include <cutils/properties.h>
 #include <cutils/compiler.h>
 
-#undef ADD_BATTERY_DATA
-
-#ifdef ADD_BATTERY_DATA
-#include <media/IMediaPlayerService.h>
-#include <media/IMediaDeathNotifier.h>
-#endif
-
-#include <private/media/AudioTrackShared.h>
-#include <private/media/AudioEffectShared.h>
+//#include <private/media/AudioTrackShared.h>
+//#include <private/media/AudioEffectShared.h>
 
 #include <system/audio.h>
 #include <hardware/audio.h>
@@ -64,26 +56,8 @@
 
 #include <powermanager/PowerManager.h>
 
-// #define DEBUG_CPU_USAGE 10  // log statistics every n wall clock seconds
-#ifdef DEBUG_CPU_USAGE
-#include <cpustats/CentralTendencyStatistics.h>
-#include <cpustats/ThreadCpuUsage.h>
-#endif
-
 #include <common_time/cc_helper.h>
-#include <common_time/local_clock.h>
-
-#include "FastMixer.h"
-
-// NBAIO implementations
-#include <media/nbaio/AudioStreamOutSink.h>
-#include <media/nbaio/MonoPipe.h>
-#include <media/nbaio/MonoPipeReader.h>
-#include <media/nbaio/Pipe.h>
-#include <media/nbaio/PipeReader.h>
-#include <media/nbaio/SourceAudioBufferProvider.h>
-
-#include "SchedulingPolicyService.h"
+//#include <common_time/local_clock.h>
 
 // ----------------------------------------------------------------------------
 
@@ -105,90 +79,13 @@
 static const char kDeadlockedString[] = "AudioFlinger may be deadlocked\n";
 static const char kHardwareLockedString[] = "Hardware lock is taken\n";
 
-static const float MAX_GAIN = 4096.0f;
-static const uint32_t MAX_GAIN_INT = 0x1000;
-
-// retry counts for buffer fill timeout
-// 50 * ~20msecs = 1 second
-static const int8_t kMaxTrackRetries = 50;
-static const int8_t kMaxTrackStartupRetries = 50;
-// allow less retry attempts on direct output thread.
-// direct outputs can be a scarce resource in audio hardware and should
-// be released as quickly as possible.
-static const int8_t kMaxTrackRetriesDirect = 2;
-
-static const int kDumpLockRetries = 50;
-static const int kDumpLockSleepUs = 20000;
-
-// don't warn about blocked writes or record buffer overflows more often than this
-static const nsecs_t kWarningThrottleNs = seconds(5);
-
-// RecordThread loop sleep time upon application overrun or audio HAL read error
-static const int kRecordThreadSleepUs = 5000;
-
-// maximum time to wait for setParameters to complete
-static const nsecs_t kSetParametersTimeoutNs = seconds(2);
-
-// minimum sleep time for the mixer thread loop when tracks are active but in underrun
-static const uint32_t kMinThreadSleepTimeUs = 5000;
-// maximum divider applied to the active sleep time in the mixer thread loop
-static const uint32_t kMaxThreadSleepTimeShift = 2;
-
-// minimum normal mix buffer size, expressed in milliseconds rather than frames
-static const uint32_t kMinNormalMixBufferSizeMs = 20;
-// maximum normal mix buffer size
-static const uint32_t kMaxNormalMixBufferSizeMs = 24;
 
 nsecs_t AudioFlinger::mStandbyTimeInNsecs = kDefaultStandbyTimeInNsecs;
 
-// Whether to use fast mixer
-static const enum {
-    FastMixer_Never,    // never initialize or use: for debugging only
-    FastMixer_Always,   // always initialize and use, even if not needed: for debugging only
-                        // normal mixer multiplier is 1
-    FastMixer_Static,   // initialize if needed, then use all the time if initialized,
-                        // multiplier is calculated based on min & max normal mixer buffer size
-    FastMixer_Dynamic,  // initialize if needed, then use dynamically depending on track load,
-                        // multiplier is calculated based on min & max normal mixer buffer size
-    // FIXME for FastMixer_Dynamic:
-    //  Supporting this option will require fixing HALs that can't handle large writes.
-    //  For example, one HAL implementation returns an error from a large write,
-    //  and another HAL implementation corrupts memory, possibly in the sample rate converter.
-    //  We could either fix the HAL implementations, or provide a wrapper that breaks
-    //  up large writes into smaller ones, and the wrapper would need to deal with scheduler.
-} kUseFastMixer = FastMixer_Static;
-
-static uint32_t gScreenState; // incremented by 2 when screen state changes, bit 0 == 1 means "off"
-                              // AudioFlinger::setParameters() updates, other threads read w/o lock
-
-// Priorities for requestPriority
-static const int kPriorityAudioApp = 2;
-static const int kPriorityFastMixer = 3;
-
-// IAudioFlinger::createTrack() reports back to client the total size of shared memory area
-// for the track.  The client then sub-divides this into smaller buffers for its use.
-// Currently the client uses double-buffering by default, but doesn't tell us about that.
-// So for now we just assume that client is double-buffered.
-// FIXME It would be better for client to tell AudioFlinger whether it wants double-buffering or
-// N-buffering, so AudioFlinger could allocate the right amount of memory.
-// See the client's minBufCount and mNotificationFramesAct calculations for details.
-static const int kFastTrackMultiplier = 2;
+uint32_t AudioFlinger::mScreenState;
 
 // ----------------------------------------------------------------------------
 
-#ifdef ADD_BATTERY_DATA
-// To collect the amplifier usage
-static void addBatteryData(uint32_t params) {
-    sp<IMediaPlayerService> service = IMediaDeathNotifier::getMediaPlayerService();
-    if (service == NULL) {
-        // it already logged
-        return;
-    }
-
-    service->addBatteryData(params);
-}
-#endif
-
 static int load_audio_interface(const char *if_name, audio_hw_device_t **dev)
 {
     const hw_module_t *mod;
@@ -364,7 +261,7 @@
     write(fd, result.string(), result.size());
 }
 
-static bool tryLock(Mutex& mutex)
+bool AudioFlinger::dumpTryLock(Mutex& mutex)
 {
     bool locked = false;
     for (int i = 0; i < kDumpLockRetries; ++i) {
@@ -383,7 +280,7 @@
         dumpPermissionDenial(fd, args);
     } else {
         // get state of hardware lock
-        bool hardwareLocked = tryLock(mHardwareLock);
+        bool hardwareLocked = dumpTryLock(mHardwareLock);
         if (!hardwareLocked) {
             String8 result(kHardwareLockedString);
             write(fd, result.string(), result.size());
@@ -391,7 +288,7 @@
             mHardwareLock.unlock();
         }
 
-        bool locked = tryLock(mLock);
+        bool locked = dumpTryLock(mLock);
 
         // failed to lock - AudioFlinger is probably deadlocked
         if (!locked) {
@@ -874,6 +771,7 @@
 {
     ALOGV("setParameters(): io %d, keyvalue %s, calling pid %d",
             ioHandle, keyValuePairs.string(), IPCThreadState::self()->getCallingPid());
+
     // check calling permissions
     if (!settingsAllowed()) {
         return PERMISSION_DENIED;
@@ -922,8 +820,8 @@
         String8 screenState;
         if (param.get(String8(AudioParameter::keyScreenState), screenState) == NO_ERROR) {
             bool isOff = screenState == "off";
-            if (isOff != (gScreenState & 1)) {
-                gScreenState = ((gScreenState & ~1) + 2) | isOff;
+            if (isOff != (AudioFlinger::mScreenState & 1)) {
+                AudioFlinger::mScreenState = ((AudioFlinger::mScreenState & ~1) + 2) | isOff;
             }
         }
         return final_result;
@@ -1148,4640 +1046,7 @@
     return thread;
 }
 
-// ----------------------------------------------------------------------------
-
-AudioFlinger::ThreadBase::ThreadBase(const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
-        audio_devices_t outDevice, audio_devices_t inDevice, type_t type)
-    :   Thread(false /*canCallJava*/),
-        mType(type),
-        mAudioFlinger(audioFlinger), mSampleRate(0), mFrameCount(0), mNormalFrameCount(0),
-        // mChannelMask
-        mChannelCount(0),
-        mFrameSize(1), mFormat(AUDIO_FORMAT_INVALID),
-        mParamStatus(NO_ERROR),
-        mStandby(false), mOutDevice(outDevice), mInDevice(inDevice),
-        mAudioSource(AUDIO_SOURCE_DEFAULT), mId(id),
-        // mName will be set by concrete (non-virtual) subclass
-        mDeathRecipient(new PMDeathRecipient(this))
-{
-}
-
-AudioFlinger::ThreadBase::~ThreadBase()
-{
-    mParamCond.broadcast();
-    // do not lock the mutex in destructor
-    releaseWakeLock_l();
-    if (mPowerManager != 0) {
-        sp<IBinder> binder = mPowerManager->asBinder();
-        binder->unlinkToDeath(mDeathRecipient);
-    }
-}
-
-void AudioFlinger::ThreadBase::exit()
-{
-    ALOGV("ThreadBase::exit");
-    // do any cleanup required for exit to succeed
-    preExit();
-    {
-        // This lock prevents the following race in thread (uniprocessor for illustration):
-        //  if (!exitPending()) {
-        //      // context switch from here to exit()
-        //      // exit() calls requestExit(), what exitPending() observes
-        //      // exit() calls signal(), which is dropped since no waiters
-        //      // context switch back from exit() to here
-        //      mWaitWorkCV.wait(...);
-        //      // now thread is hung
-        //  }
-        AutoMutex lock(mLock);
-        requestExit();
-        mWaitWorkCV.broadcast();
-    }
-    // When Thread::requestExitAndWait is made virtual and this method is renamed to
-    // "virtual status_t requestExitAndWait()", replace by "return Thread::requestExitAndWait();"
-    requestExitAndWait();
-}
-
-status_t AudioFlinger::ThreadBase::setParameters(const String8& keyValuePairs)
-{
-    status_t status;
-
-    ALOGV("ThreadBase::setParameters() %s", keyValuePairs.string());
-    Mutex::Autolock _l(mLock);
-
-    mNewParameters.add(keyValuePairs);
-    mWaitWorkCV.signal();
-    // wait condition with timeout in case the thread loop has exited
-    // before the request could be processed
-    if (mParamCond.waitRelative(mLock, kSetParametersTimeoutNs) == NO_ERROR) {
-        status = mParamStatus;
-        mWaitWorkCV.signal();
-    } else {
-        status = TIMED_OUT;
-    }
-    return status;
-}
-
-void AudioFlinger::ThreadBase::sendIoConfigEvent(int event, int param)
-{
-    Mutex::Autolock _l(mLock);
-    sendIoConfigEvent_l(event, param);
-}
-
-// sendIoConfigEvent_l() must be called with ThreadBase::mLock held
-void AudioFlinger::ThreadBase::sendIoConfigEvent_l(int event, int param)
-{
-    IoConfigEvent *ioEvent = new IoConfigEvent(event, param);
-    mConfigEvents.add(static_cast<ConfigEvent *>(ioEvent));
-    ALOGV("sendIoConfigEvent() num events %d event %d, param %d", mConfigEvents.size(), event,
-            param);
-    mWaitWorkCV.signal();
-}
-
-// sendPrioConfigEvent_l() must be called with ThreadBase::mLock held
-void AudioFlinger::ThreadBase::sendPrioConfigEvent_l(pid_t pid, pid_t tid, int32_t prio)
-{
-    PrioConfigEvent *prioEvent = new PrioConfigEvent(pid, tid, prio);
-    mConfigEvents.add(static_cast<ConfigEvent *>(prioEvent));
-    ALOGV("sendPrioConfigEvent_l() num events %d pid %d, tid %d prio %d",
-          mConfigEvents.size(), pid, tid, prio);
-    mWaitWorkCV.signal();
-}
-
-void AudioFlinger::ThreadBase::processConfigEvents()
-{
-    mLock.lock();
-    while (!mConfigEvents.isEmpty()) {
-        ALOGV("processConfigEvents() remaining events %d", mConfigEvents.size());
-        ConfigEvent *event = mConfigEvents[0];
-        mConfigEvents.removeAt(0);
-        // release mLock before locking AudioFlinger mLock: lock order is always
-        // AudioFlinger then ThreadBase to avoid cross deadlock
-        mLock.unlock();
-        switch(event->type()) {
-            case CFG_EVENT_PRIO: {
-                PrioConfigEvent *prioEvent = static_cast<PrioConfigEvent *>(event);
-                int err = requestPriority(prioEvent->pid(), prioEvent->tid(), prioEvent->prio());
-                if (err != 0) {
-                    ALOGW("Policy SCHED_FIFO priority %d is unavailable for pid %d tid %d; "
-                          "error %d",
-                          prioEvent->prio(), prioEvent->pid(), prioEvent->tid(), err);
-                }
-            } break;
-            case CFG_EVENT_IO: {
-                IoConfigEvent *ioEvent = static_cast<IoConfigEvent *>(event);
-                mAudioFlinger->mLock.lock();
-                audioConfigChanged_l(ioEvent->event(), ioEvent->param());
-                mAudioFlinger->mLock.unlock();
-            } break;
-            default:
-                ALOGE("processConfigEvents() unknown event type %d", event->type());
-                break;
-        }
-        delete event;
-        mLock.lock();
-    }
-    mLock.unlock();
-}
-
-void AudioFlinger::ThreadBase::dumpBase(int fd, const Vector<String16>& args)
-{
-    const size_t SIZE = 256;
-    char buffer[SIZE];
-    String8 result;
-
-    bool locked = tryLock(mLock);
-    if (!locked) {
-        snprintf(buffer, SIZE, "thread %p maybe dead locked\n", this);
-        write(fd, buffer, strlen(buffer));
-    }
-
-    snprintf(buffer, SIZE, "io handle: %d\n", mId);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "TID: %d\n", getTid());
-    result.append(buffer);
-    snprintf(buffer, SIZE, "standby: %d\n", mStandby);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "Sample rate: %u\n", mSampleRate);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "HAL frame count: %d\n", mFrameCount);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "Normal frame count: %d\n", mNormalFrameCount);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "Channel Count: %d\n", mChannelCount);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "Channel Mask: 0x%08x\n", mChannelMask);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "Format: %d\n", mFormat);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "Frame size: %u\n", mFrameSize);
-    result.append(buffer);
-
-    snprintf(buffer, SIZE, "\nPending setParameters commands: \n");
-    result.append(buffer);
-    result.append(" Index Command");
-    for (size_t i = 0; i < mNewParameters.size(); ++i) {
-        snprintf(buffer, SIZE, "\n %02d    ", i);
-        result.append(buffer);
-        result.append(mNewParameters[i]);
-    }
-
-    snprintf(buffer, SIZE, "\n\nPending config events: \n");
-    result.append(buffer);
-    for (size_t i = 0; i < mConfigEvents.size(); i++) {
-        mConfigEvents[i]->dump(buffer, SIZE);
-        result.append(buffer);
-    }
-    result.append("\n");
-
-    write(fd, result.string(), result.size());
-
-    if (locked) {
-        mLock.unlock();
-    }
-}
-
-void AudioFlinger::ThreadBase::dumpEffectChains(int fd, const Vector<String16>& args)
-{
-    const size_t SIZE = 256;
-    char buffer[SIZE];
-    String8 result;
-
-    snprintf(buffer, SIZE, "\n- %d Effect Chains:\n", mEffectChains.size());
-    write(fd, buffer, strlen(buffer));
-
-    for (size_t i = 0; i < mEffectChains.size(); ++i) {
-        sp<EffectChain> chain = mEffectChains[i];
-        if (chain != 0) {
-            chain->dump(fd, args);
-        }
-    }
-}
-
-void AudioFlinger::ThreadBase::acquireWakeLock()
-{
-    Mutex::Autolock _l(mLock);
-    acquireWakeLock_l();
-}
-
-void AudioFlinger::ThreadBase::acquireWakeLock_l()
-{
-    if (mPowerManager == 0) {
-        // use checkService() to avoid blocking if power service is not up yet
-        sp<IBinder> binder =
-            defaultServiceManager()->checkService(String16("power"));
-        if (binder == 0) {
-            ALOGW("Thread %s cannot connect to the power manager service", mName);
-        } else {
-            mPowerManager = interface_cast<IPowerManager>(binder);
-            binder->linkToDeath(mDeathRecipient);
-        }
-    }
-    if (mPowerManager != 0) {
-        sp<IBinder> binder = new BBinder();
-        status_t status = mPowerManager->acquireWakeLock(POWERMANAGER_PARTIAL_WAKE_LOCK,
-                                                         binder,
-                                                         String16(mName));
-        if (status == NO_ERROR) {
-            mWakeLockToken = binder;
-        }
-        ALOGV("acquireWakeLock_l() %s status %d", mName, status);
-    }
-}
-
-void AudioFlinger::ThreadBase::releaseWakeLock()
-{
-    Mutex::Autolock _l(mLock);
-    releaseWakeLock_l();
-}
-
-void AudioFlinger::ThreadBase::releaseWakeLock_l()
-{
-    if (mWakeLockToken != 0) {
-        ALOGV("releaseWakeLock_l() %s", mName);
-        if (mPowerManager != 0) {
-            mPowerManager->releaseWakeLock(mWakeLockToken, 0);
-        }
-        mWakeLockToken.clear();
-    }
-}
-
-void AudioFlinger::ThreadBase::clearPowerManager()
-{
-    Mutex::Autolock _l(mLock);
-    releaseWakeLock_l();
-    mPowerManager.clear();
-}
-
-void AudioFlinger::ThreadBase::PMDeathRecipient::binderDied(const wp<IBinder>& who)
-{
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread != 0) {
-        thread->clearPowerManager();
-    }
-    ALOGW("power manager service died !!!");
-}
-
-void AudioFlinger::ThreadBase::setEffectSuspended(
-        const effect_uuid_t *type, bool suspend, int sessionId)
-{
-    Mutex::Autolock _l(mLock);
-    setEffectSuspended_l(type, suspend, sessionId);
-}
-
-void AudioFlinger::ThreadBase::setEffectSuspended_l(
-        const effect_uuid_t *type, bool suspend, int sessionId)
-{
-    sp<EffectChain> chain = getEffectChain_l(sessionId);
-    if (chain != 0) {
-        if (type != NULL) {
-            chain->setEffectSuspended_l(type, suspend);
-        } else {
-            chain->setEffectSuspendedAll_l(suspend);
-        }
-    }
-
-    updateSuspendedSessions_l(type, suspend, sessionId);
-}
-
-void AudioFlinger::ThreadBase::checkSuspendOnAddEffectChain_l(const sp<EffectChain>& chain)
-{
-    ssize_t index = mSuspendedSessions.indexOfKey(chain->sessionId());
-    if (index < 0) {
-        return;
-    }
-
-    const KeyedVector <int, sp<SuspendedSessionDesc> >& sessionEffects =
-            mSuspendedSessions.valueAt(index);
-
-    for (size_t i = 0; i < sessionEffects.size(); i++) {
-        sp<SuspendedSessionDesc> desc = sessionEffects.valueAt(i);
-        for (int j = 0; j < desc->mRefCount; j++) {
-            if (sessionEffects.keyAt(i) == EffectChain::kKeyForSuspendAll) {
-                chain->setEffectSuspendedAll_l(true);
-            } else {
-                ALOGV("checkSuspendOnAddEffectChain_l() suspending effects %08x",
-                    desc->mType.timeLow);
-                chain->setEffectSuspended_l(&desc->mType, true);
-            }
-        }
-    }
-}
-
-void AudioFlinger::ThreadBase::updateSuspendedSessions_l(const effect_uuid_t *type,
-                                                         bool suspend,
-                                                         int sessionId)
-{
-    ssize_t index = mSuspendedSessions.indexOfKey(sessionId);
-
-    KeyedVector <int, sp<SuspendedSessionDesc> > sessionEffects;
-
-    if (suspend) {
-        if (index >= 0) {
-            sessionEffects = mSuspendedSessions.valueAt(index);
-        } else {
-            mSuspendedSessions.add(sessionId, sessionEffects);
-        }
-    } else {
-        if (index < 0) {
-            return;
-        }
-        sessionEffects = mSuspendedSessions.valueAt(index);
-    }
-
-
-    int key = EffectChain::kKeyForSuspendAll;
-    if (type != NULL) {
-        key = type->timeLow;
-    }
-    index = sessionEffects.indexOfKey(key);
-
-    sp<SuspendedSessionDesc> desc;
-    if (suspend) {
-        if (index >= 0) {
-            desc = sessionEffects.valueAt(index);
-        } else {
-            desc = new SuspendedSessionDesc();
-            if (type != NULL) {
-                desc->mType = *type;
-            }
-            sessionEffects.add(key, desc);
-            ALOGV("updateSuspendedSessions_l() suspend adding effect %08x", key);
-        }
-        desc->mRefCount++;
-    } else {
-        if (index < 0) {
-            return;
-        }
-        desc = sessionEffects.valueAt(index);
-        if (--desc->mRefCount == 0) {
-            ALOGV("updateSuspendedSessions_l() restore removing effect %08x", key);
-            sessionEffects.removeItemsAt(index);
-            if (sessionEffects.isEmpty()) {
-                ALOGV("updateSuspendedSessions_l() restore removing session %d",
-                                 sessionId);
-                mSuspendedSessions.removeItem(sessionId);
-            }
-        }
-    }
-    if (!sessionEffects.isEmpty()) {
-        mSuspendedSessions.replaceValueFor(sessionId, sessionEffects);
-    }
-}
-
-void AudioFlinger::ThreadBase::checkSuspendOnEffectEnabled(const sp<EffectModule>& effect,
-                                                            bool enabled,
-                                                            int sessionId)
-{
-    Mutex::Autolock _l(mLock);
-    checkSuspendOnEffectEnabled_l(effect, enabled, sessionId);
-}
-
-void AudioFlinger::ThreadBase::checkSuspendOnEffectEnabled_l(const sp<EffectModule>& effect,
-                                                            bool enabled,
-                                                            int sessionId)
-{
-    if (mType != RECORD) {
-        // suspend all effects in AUDIO_SESSION_OUTPUT_MIX when enabling any effect on
-        // another session. This gives the priority to well behaved effect control panels
-        // and applications not using global effects.
-        // Enabling post processing in AUDIO_SESSION_OUTPUT_STAGE session does not affect
-        // global effects
-        if ((sessionId != AUDIO_SESSION_OUTPUT_MIX) && (sessionId != AUDIO_SESSION_OUTPUT_STAGE)) {
-            setEffectSuspended_l(NULL, enabled, AUDIO_SESSION_OUTPUT_MIX);
-        }
-    }
-
-    sp<EffectChain> chain = getEffectChain_l(sessionId);
-    if (chain != 0) {
-        chain->checkSuspendOnEffectEnabled(effect, enabled);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-AudioFlinger::PlaybackThread::PlaybackThread(const sp<AudioFlinger>& audioFlinger,
-                                             AudioStreamOut* output,
-                                             audio_io_handle_t id,
-                                             audio_devices_t device,
-                                             type_t type)
-    :   ThreadBase(audioFlinger, id, device, AUDIO_DEVICE_NONE, type),
-        mMixBuffer(NULL), mSuspended(0), mBytesWritten(0),
-        // mStreamTypes[] initialized in constructor body
-        mOutput(output),
-        mLastWriteTime(0), mNumWrites(0), mNumDelayedWrites(0), mInWrite(false),
-        mMixerStatus(MIXER_IDLE),
-        mMixerStatusIgnoringFastTracks(MIXER_IDLE),
-        standbyDelay(AudioFlinger::mStandbyTimeInNsecs),
-        mScreenState(gScreenState),
-        // index 0 is reserved for normal mixer's submix
-        mFastTrackAvailMask(((1 << FastMixerState::kMaxFastTracks) - 1) & ~1)
-{
-    snprintf(mName, kNameLength, "AudioOut_%X", id);
-
-    // Assumes constructor is called by AudioFlinger with it's mLock held, but
-    // it would be safer to explicitly pass initial masterVolume/masterMute as
-    // parameter.
-    //
-    // If the HAL we are using has support for master volume or master mute,
-    // then do not attenuate or mute during mixing (just leave the volume at 1.0
-    // and the mute set to false).
-    mMasterVolume = audioFlinger->masterVolume_l();
-    mMasterMute = audioFlinger->masterMute_l();
-    if (mOutput && mOutput->audioHwDev) {
-        if (mOutput->audioHwDev->canSetMasterVolume()) {
-            mMasterVolume = 1.0;
-        }
-
-        if (mOutput->audioHwDev->canSetMasterMute()) {
-            mMasterMute = false;
-        }
-    }
-
-    readOutputParameters();
-
-    // mStreamTypes[AUDIO_STREAM_CNT] is initialized by stream_type_t default constructor
-    // There is no AUDIO_STREAM_MIN, and ++ operator does not compile
-    for (audio_stream_type_t stream = (audio_stream_type_t) 0; stream < AUDIO_STREAM_CNT;
-            stream = (audio_stream_type_t) (stream + 1)) {
-        mStreamTypes[stream].volume = mAudioFlinger->streamVolume_l(stream);
-        mStreamTypes[stream].mute = mAudioFlinger->streamMute_l(stream);
-    }
-    // mStreamTypes[AUDIO_STREAM_CNT] exists but isn't explicitly initialized here,
-    // because mAudioFlinger doesn't have one to copy from
-}
-
-AudioFlinger::PlaybackThread::~PlaybackThread()
-{
-    delete [] mMixBuffer;
-}
-
-void AudioFlinger::PlaybackThread::dump(int fd, const Vector<String16>& args)
-{
-    dumpInternals(fd, args);
-    dumpTracks(fd, args);
-    dumpEffectChains(fd, args);
-}
-
-void AudioFlinger::PlaybackThread::dumpTracks(int fd, const Vector<String16>& args)
-{
-    const size_t SIZE = 256;
-    char buffer[SIZE];
-    String8 result;
-
-    result.appendFormat("Output thread %p stream volumes in dB:\n    ", this);
-    for (int i = 0; i < AUDIO_STREAM_CNT; ++i) {
-        const stream_type_t *st = &mStreamTypes[i];
-        if (i > 0) {
-            result.appendFormat(", ");
-        }
-        result.appendFormat("%d:%.2g", i, 20.0 * log10(st->volume));
-        if (st->mute) {
-            result.append("M");
-        }
-    }
-    result.append("\n");
-    write(fd, result.string(), result.length());
-    result.clear();
-
-    snprintf(buffer, SIZE, "Output thread %p tracks\n", this);
-    result.append(buffer);
-    Track::appendDumpHeader(result);
-    for (size_t i = 0; i < mTracks.size(); ++i) {
-        sp<Track> track = mTracks[i];
-        if (track != 0) {
-            track->dump(buffer, SIZE);
-            result.append(buffer);
-        }
-    }
-
-    snprintf(buffer, SIZE, "Output thread %p active tracks\n", this);
-    result.append(buffer);
-    Track::appendDumpHeader(result);
-    for (size_t i = 0; i < mActiveTracks.size(); ++i) {
-        sp<Track> track = mActiveTracks[i].promote();
-        if (track != 0) {
-            track->dump(buffer, SIZE);
-            result.append(buffer);
-        }
-    }
-    write(fd, result.string(), result.size());
-
-    // These values are "raw"; they will wrap around.  See prepareTracks_l() for a better way.
-    FastTrackUnderruns underruns = getFastTrackUnderruns(0);
-    fdprintf(fd, "Normal mixer raw underrun counters: partial=%u empty=%u\n",
-            underruns.mBitFields.mPartial, underruns.mBitFields.mEmpty);
-}
-
-void AudioFlinger::PlaybackThread::dumpInternals(int fd, const Vector<String16>& args)
-{
-    const size_t SIZE = 256;
-    char buffer[SIZE];
-    String8 result;
-
-    snprintf(buffer, SIZE, "\nOutput thread %p internals\n", this);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "last write occurred (msecs): %llu\n",
-            ns2ms(systemTime() - mLastWriteTime));
-    result.append(buffer);
-    snprintf(buffer, SIZE, "total writes: %d\n", mNumWrites);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "delayed writes: %d\n", mNumDelayedWrites);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "blocked in write: %d\n", mInWrite);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "suspend count: %d\n", mSuspended);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "mix buffer : %p\n", mMixBuffer);
-    result.append(buffer);
-    write(fd, result.string(), result.size());
-    fdprintf(fd, "Fast track availMask=%#x\n", mFastTrackAvailMask);
-
-    dumpBase(fd, args);
-}
-
-// Thread virtuals
-status_t AudioFlinger::PlaybackThread::readyToRun()
-{
-    status_t status = initCheck();
-    if (status == NO_ERROR) {
-        ALOGI("AudioFlinger's thread %p ready to run", this);
-    } else {
-        ALOGE("No working audio driver found.");
-    }
-    return status;
-}
-
-void AudioFlinger::PlaybackThread::onFirstRef()
-{
-    run(mName, ANDROID_PRIORITY_URGENT_AUDIO);
-}
-
-// ThreadBase virtuals
-void AudioFlinger::PlaybackThread::preExit()
-{
-    ALOGV("  preExit()");
-    // FIXME this is using hard-coded strings but in the future, this functionality will be
-    //       converted to use audio HAL extensions required to support tunneling
-    mOutput->stream->common.set_parameters(&mOutput->stream->common, "exiting=1");
-}
-
-// PlaybackThread::createTrack_l() must be called with AudioFlinger::mLock held
-sp<AudioFlinger::PlaybackThread::Track> AudioFlinger::PlaybackThread::createTrack_l(
-        const sp<AudioFlinger::Client>& client,
-        audio_stream_type_t streamType,
-        uint32_t sampleRate,
-        audio_format_t format,
-        audio_channel_mask_t channelMask,
-        size_t frameCount,
-        const sp<IMemory>& sharedBuffer,
-        int sessionId,
-        IAudioFlinger::track_flags_t *flags,
-        pid_t tid,
-        status_t *status)
-{
-    sp<Track> track;
-    status_t lStatus;
-
-    bool isTimed = (*flags & IAudioFlinger::TRACK_TIMED) != 0;
-
-    // client expresses a preference for FAST, but we get the final say
-    if (*flags & IAudioFlinger::TRACK_FAST) {
-      if (
-            // not timed
-            (!isTimed) &&
-            // either of these use cases:
-            (
-              // use case 1: shared buffer with any frame count
-              (
-                (sharedBuffer != 0)
-              ) ||
-              // use case 2: callback handler and frame count is default or at least as large as HAL
-              (
-                (tid != -1) &&
-                ((frameCount == 0) ||
-                (frameCount >= (mFrameCount * kFastTrackMultiplier)))
-              )
-            ) &&
-            // PCM data
-            audio_is_linear_pcm(format) &&
-            // mono or stereo
-            ( (channelMask == AUDIO_CHANNEL_OUT_MONO) ||
-              (channelMask == AUDIO_CHANNEL_OUT_STEREO) ) &&
-#ifndef FAST_TRACKS_AT_NON_NATIVE_SAMPLE_RATE
-            // hardware sample rate
-            (sampleRate == mSampleRate) &&
-#endif
-            // normal mixer has an associated fast mixer
-            hasFastMixer() &&
-            // there are sufficient fast track slots available
-            (mFastTrackAvailMask != 0)
-            // FIXME test that MixerThread for this fast track has a capable output HAL
-            // FIXME add a permission test also?
-        ) {
-        // if frameCount not specified, then it defaults to fast mixer (HAL) frame count
-        if (frameCount == 0) {
-            frameCount = mFrameCount * kFastTrackMultiplier;
-        }
-        ALOGV("AUDIO_OUTPUT_FLAG_FAST accepted: frameCount=%d mFrameCount=%d",
-                frameCount, mFrameCount);
-      } else {
-        ALOGV("AUDIO_OUTPUT_FLAG_FAST denied: isTimed=%d sharedBuffer=%p frameCount=%d "
-                "mFrameCount=%d format=%d isLinear=%d channelMask=%#x sampleRate=%u mSampleRate=%u "
-                "hasFastMixer=%d tid=%d fastTrackAvailMask=%#x",
-                isTimed, sharedBuffer.get(), frameCount, mFrameCount, format,
-                audio_is_linear_pcm(format),
-                channelMask, sampleRate, mSampleRate, hasFastMixer(), tid, mFastTrackAvailMask);
-        *flags &= ~IAudioFlinger::TRACK_FAST;
-        // For compatibility with AudioTrack calculation, buffer depth is forced
-        // to be at least 2 x the normal mixer frame count and cover audio hardware latency.
-        // This is probably too conservative, but legacy application code may depend on it.
-        // If you change this calculation, also review the start threshold which is related.
-        uint32_t latencyMs = mOutput->stream->get_latency(mOutput->stream);
-        uint32_t minBufCount = latencyMs / ((1000 * mNormalFrameCount) / mSampleRate);
-        if (minBufCount < 2) {
-            minBufCount = 2;
-        }
-        size_t minFrameCount = mNormalFrameCount * minBufCount;
-        if (frameCount < minFrameCount) {
-            frameCount = minFrameCount;
-        }
-      }
-    }
-
-    if (mType == DIRECT) {
-        if ((format & AUDIO_FORMAT_MAIN_MASK) == AUDIO_FORMAT_PCM) {
-            if (sampleRate != mSampleRate || format != mFormat || channelMask != mChannelMask) {
-                ALOGE("createTrack_l() Bad parameter: sampleRate %u format %d, channelMask 0x%08x "
-                        "for output %p with format %d",
-                        sampleRate, format, channelMask, mOutput, mFormat);
-                lStatus = BAD_VALUE;
-                goto Exit;
-            }
-        }
-    } else {
-        // Resampler implementation limits input sampling rate to 2 x output sampling rate.
-        if (sampleRate > mSampleRate*2) {
-            ALOGE("Sample rate out of range: %u mSampleRate %u", sampleRate, mSampleRate);
-            lStatus = BAD_VALUE;
-            goto Exit;
-        }
-    }
-
-    lStatus = initCheck();
-    if (lStatus != NO_ERROR) {
-        ALOGE("Audio driver not initialized.");
-        goto Exit;
-    }
-
-    { // scope for mLock
-        Mutex::Autolock _l(mLock);
-
-        // all tracks in same audio session must share the same routing strategy otherwise
-        // conflicts will happen when tracks are moved from one output to another by audio policy
-        // manager
-        uint32_t strategy = AudioSystem::getStrategyForStream(streamType);
-        for (size_t i = 0; i < mTracks.size(); ++i) {
-            sp<Track> t = mTracks[i];
-            if (t != 0 && !t->isOutputTrack()) {
-                uint32_t actual = AudioSystem::getStrategyForStream(t->streamType());
-                if (sessionId == t->sessionId() && strategy != actual) {
-                    ALOGE("createTrack_l() mismatched strategy; expected %u but found %u",
-                            strategy, actual);
-                    lStatus = BAD_VALUE;
-                    goto Exit;
-                }
-            }
-        }
-
-        if (!isTimed) {
-            track = new Track(this, client, streamType, sampleRate, format,
-                    channelMask, frameCount, sharedBuffer, sessionId, *flags);
-        } else {
-            track = TimedTrack::create(this, client, streamType, sampleRate, format,
-                    channelMask, frameCount, sharedBuffer, sessionId);
-        }
-        if (track == 0 || track->getCblk() == NULL || track->name() < 0) {
-            lStatus = NO_MEMORY;
-            goto Exit;
-        }
-        mTracks.add(track);
-
-        sp<EffectChain> chain = getEffectChain_l(sessionId);
-        if (chain != 0) {
-            ALOGV("createTrack_l() setting main buffer %p", chain->inBuffer());
-            track->setMainBuffer(chain->inBuffer());
-            chain->setStrategy(AudioSystem::getStrategyForStream(track->streamType()));
-            chain->incTrackCnt();
-        }
-
-        if ((*flags & IAudioFlinger::TRACK_FAST) && (tid != -1)) {
-            pid_t callingPid = IPCThreadState::self()->getCallingPid();
-            // we don't have CAP_SYS_NICE, nor do we want to have it as it's too powerful,
-            // so ask activity manager to do this on our behalf
-            sendPrioConfigEvent_l(callingPid, tid, kPriorityAudioApp);
-        }
-    }
-
-    lStatus = NO_ERROR;
-
-Exit:
-    if (status) {
-        *status = lStatus;
-    }
-    return track;
-}
-
-uint32_t AudioFlinger::MixerThread::correctLatency_l(uint32_t latency) const
-{
-    if (mFastMixer != NULL) {
-        MonoPipe *pipe = (MonoPipe *)mPipeSink.get();
-        latency += (pipe->getAvgFrames() * 1000) / mSampleRate;
-    }
-    return latency;
-}
-
-uint32_t AudioFlinger::PlaybackThread::correctLatency_l(uint32_t latency) const
-{
-    return latency;
-}
-
-uint32_t AudioFlinger::PlaybackThread::latency() const
-{
-    Mutex::Autolock _l(mLock);
-    return latency_l();
-}
-uint32_t AudioFlinger::PlaybackThread::latency_l() const
-{
-    if (initCheck() == NO_ERROR) {
-        return correctLatency_l(mOutput->stream->get_latency(mOutput->stream));
-    } else {
-        return 0;
-    }
-}
-
-void AudioFlinger::PlaybackThread::setMasterVolume(float value)
-{
-    Mutex::Autolock _l(mLock);
-    // Don't apply master volume in SW if our HAL can do it for us.
-    if (mOutput && mOutput->audioHwDev &&
-        mOutput->audioHwDev->canSetMasterVolume()) {
-        mMasterVolume = 1.0;
-    } else {
-        mMasterVolume = value;
-    }
-}
-
-void AudioFlinger::PlaybackThread::setMasterMute(bool muted)
-{
-    Mutex::Autolock _l(mLock);
-    // Don't apply master mute in SW if our HAL can do it for us.
-    if (mOutput && mOutput->audioHwDev &&
-        mOutput->audioHwDev->canSetMasterMute()) {
-        mMasterMute = false;
-    } else {
-        mMasterMute = muted;
-    }
-}
-
-void AudioFlinger::PlaybackThread::setStreamVolume(audio_stream_type_t stream, float value)
-{
-    Mutex::Autolock _l(mLock);
-    mStreamTypes[stream].volume = value;
-}
-
-void AudioFlinger::PlaybackThread::setStreamMute(audio_stream_type_t stream, bool muted)
-{
-    Mutex::Autolock _l(mLock);
-    mStreamTypes[stream].mute = muted;
-}
-
-float AudioFlinger::PlaybackThread::streamVolume(audio_stream_type_t stream) const
-{
-    Mutex::Autolock _l(mLock);
-    return mStreamTypes[stream].volume;
-}
-
-// addTrack_l() must be called with ThreadBase::mLock held
-status_t AudioFlinger::PlaybackThread::addTrack_l(const sp<Track>& track)
-{
-    status_t status = ALREADY_EXISTS;
-
-    // set retry count for buffer fill
-    track->mRetryCount = kMaxTrackStartupRetries;
-    if (mActiveTracks.indexOf(track) < 0) {
-        // the track is newly added, make sure it fills up all its
-        // buffers before playing. This is to ensure the client will
-        // effectively get the latency it requested.
-        track->mFillingUpStatus = Track::FS_FILLING;
-        track->mResetDone = false;
-        track->mPresentationCompleteFrames = 0;
-        mActiveTracks.add(track);
-        if (track->mainBuffer() != mMixBuffer) {
-            sp<EffectChain> chain = getEffectChain_l(track->sessionId());
-            if (chain != 0) {
-                ALOGV("addTrack_l() starting track on chain %p for session %d", chain.get(),
-                        track->sessionId());
-                chain->incActiveTrackCnt();
-            }
-        }
-
-        status = NO_ERROR;
-    }
-
-    ALOGV("mWaitWorkCV.broadcast");
-    mWaitWorkCV.broadcast();
-
-    return status;
-}
-
-// destroyTrack_l() must be called with ThreadBase::mLock held
-void AudioFlinger::PlaybackThread::destroyTrack_l(const sp<Track>& track)
-{
-    track->mState = TrackBase::TERMINATED;
-    // active tracks are removed by threadLoop()
-    if (mActiveTracks.indexOf(track) < 0) {
-        removeTrack_l(track);
-    }
-}
-
-void AudioFlinger::PlaybackThread::removeTrack_l(const sp<Track>& track)
-{
-    track->triggerEvents(AudioSystem::SYNC_EVENT_PRESENTATION_COMPLETE);
-    mTracks.remove(track);
-    deleteTrackName_l(track->name());
-    // redundant as track is about to be destroyed, for dumpsys only
-    track->mName = -1;
-    if (track->isFastTrack()) {
-        int index = track->mFastIndex;
-        ALOG_ASSERT(0 < index && index < (int)FastMixerState::kMaxFastTracks);
-        ALOG_ASSERT(!(mFastTrackAvailMask & (1 << index)));
-        mFastTrackAvailMask |= 1 << index;
-        // redundant as track is about to be destroyed, for dumpsys only
-        track->mFastIndex = -1;
-    }
-    sp<EffectChain> chain = getEffectChain_l(track->sessionId());
-    if (chain != 0) {
-        chain->decTrackCnt();
-    }
-}
-
-String8 AudioFlinger::PlaybackThread::getParameters(const String8& keys)
-{
-    String8 out_s8 = String8("");
-    char *s;
-
-    Mutex::Autolock _l(mLock);
-    if (initCheck() != NO_ERROR) {
-        return out_s8;
-    }
-
-    s = mOutput->stream->common.get_parameters(&mOutput->stream->common, keys.string());
-    out_s8 = String8(s);
-    free(s);
-    return out_s8;
-}
-
-// audioConfigChanged_l() must be called with AudioFlinger::mLock held
-void AudioFlinger::PlaybackThread::audioConfigChanged_l(int event, int param) {
-    AudioSystem::OutputDescriptor desc;
-    void *param2 = NULL;
-
-    ALOGV("PlaybackThread::audioConfigChanged_l, thread %p, event %d, param %d", this, event,
-            param);
-
-    switch (event) {
-    case AudioSystem::OUTPUT_OPENED:
-    case AudioSystem::OUTPUT_CONFIG_CHANGED:
-        desc.channels = mChannelMask;
-        desc.samplingRate = mSampleRate;
-        desc.format = mFormat;
-        desc.frameCount = mNormalFrameCount; // FIXME see
-                                             // AudioFlinger::frameCount(audio_io_handle_t)
-        desc.latency = latency();
-        param2 = &desc;
-        break;
-
-    case AudioSystem::STREAM_CONFIG_CHANGED:
-        param2 = &param;
-    case AudioSystem::OUTPUT_CLOSED:
-    default:
-        break;
-    }
-    mAudioFlinger->audioConfigChanged_l(event, mId, param2);
-}
-
-void AudioFlinger::PlaybackThread::readOutputParameters()
-{
-    mSampleRate = mOutput->stream->common.get_sample_rate(&mOutput->stream->common);
-    mChannelMask = mOutput->stream->common.get_channels(&mOutput->stream->common);
-    mChannelCount = (uint16_t)popcount(mChannelMask);
-    mFormat = mOutput->stream->common.get_format(&mOutput->stream->common);
-    mFrameSize = audio_stream_frame_size(&mOutput->stream->common);
-    mFrameCount = mOutput->stream->common.get_buffer_size(&mOutput->stream->common) / mFrameSize;
-    if (mFrameCount & 15) {
-        ALOGW("HAL output buffer size is %u frames but AudioMixer requires multiples of 16 frames",
-                mFrameCount);
-    }
-
-    // Calculate size of normal mix buffer relative to the HAL output buffer size
-    double multiplier = 1.0;
-    if (mType == MIXER && (kUseFastMixer == FastMixer_Static ||
-            kUseFastMixer == FastMixer_Dynamic)) {
-        size_t minNormalFrameCount = (kMinNormalMixBufferSizeMs * mSampleRate) / 1000;
-        size_t maxNormalFrameCount = (kMaxNormalMixBufferSizeMs * mSampleRate) / 1000;
-        // round up minimum and round down maximum to nearest 16 frames to satisfy AudioMixer
-        minNormalFrameCount = (minNormalFrameCount + 15) & ~15;
-        maxNormalFrameCount = maxNormalFrameCount & ~15;
-        if (maxNormalFrameCount < minNormalFrameCount) {
-            maxNormalFrameCount = minNormalFrameCount;
-        }
-        multiplier = (double) minNormalFrameCount / (double) mFrameCount;
-        if (multiplier <= 1.0) {
-            multiplier = 1.0;
-        } else if (multiplier <= 2.0) {
-            if (2 * mFrameCount <= maxNormalFrameCount) {
-                multiplier = 2.0;
-            } else {
-                multiplier = (double) maxNormalFrameCount / (double) mFrameCount;
-            }
-        } else {
-            // prefer an even multiplier, for compatibility with doubling of fast tracks due to HAL
-            // SRC (it would be unusual for the normal mix buffer size to not be a multiple of fast
-            // track, but we sometimes have to do this to satisfy the maximum frame count
-            // constraint)
-            // FIXME this rounding up should not be done if no HAL SRC
-            uint32_t truncMult = (uint32_t) multiplier;
-            if ((truncMult & 1)) {
-                if ((truncMult + 1) * mFrameCount <= maxNormalFrameCount) {
-                    ++truncMult;
-                }
-            }
-            multiplier = (double) truncMult;
-        }
-    }
-    mNormalFrameCount = multiplier * mFrameCount;
-    // round up to nearest 16 frames to satisfy AudioMixer
-    mNormalFrameCount = (mNormalFrameCount + 15) & ~15;
-    ALOGI("HAL output buffer size %u frames, normal mix buffer size %u frames", mFrameCount,
-            mNormalFrameCount);
-
-    delete[] mMixBuffer;
-    mMixBuffer = new int16_t[mNormalFrameCount * mChannelCount];
-    memset(mMixBuffer, 0, mNormalFrameCount * mChannelCount * sizeof(int16_t));
-
-    // force reconfiguration of effect chains and engines to take new buffer size and audio
-    // parameters into account
-    // Note that mLock is not held when readOutputParameters() is called from the constructor
-    // but in this case nothing is done below as no audio sessions have effect yet so it doesn't
-    // matter.
-    // create a copy of mEffectChains as calling moveEffectChain_l() can reorder some effect chains
-    Vector< sp<EffectChain> > effectChains = mEffectChains;
-    for (size_t i = 0; i < effectChains.size(); i ++) {
-        mAudioFlinger->moveEffectChain_l(effectChains[i]->sessionId(), this, this, false);
-    }
-}
-
-
-status_t AudioFlinger::PlaybackThread::getRenderPosition(size_t *halFrames, size_t *dspFrames)
-{
-    if (halFrames == NULL || dspFrames == NULL) {
-        return BAD_VALUE;
-    }
-    Mutex::Autolock _l(mLock);
-    if (initCheck() != NO_ERROR) {
-        return INVALID_OPERATION;
-    }
-    size_t framesWritten = mBytesWritten / mFrameSize;
-    *halFrames = framesWritten;
-
-    if (isSuspended()) {
-        // return an estimation of rendered frames when the output is suspended
-        size_t latencyFrames = (latency_l() * mSampleRate) / 1000;
-        *dspFrames = framesWritten >= latencyFrames ? framesWritten - latencyFrames : 0;
-        return NO_ERROR;
-    } else {
-        return mOutput->stream->get_render_position(mOutput->stream, dspFrames);
-    }
-}
-
-uint32_t AudioFlinger::PlaybackThread::hasAudioSession(int sessionId) const
-{
-    Mutex::Autolock _l(mLock);
-    uint32_t result = 0;
-    if (getEffectChain_l(sessionId) != 0) {
-        result = EFFECT_SESSION;
-    }
-
-    for (size_t i = 0; i < mTracks.size(); ++i) {
-        sp<Track> track = mTracks[i];
-        if (sessionId == track->sessionId() &&
-                !(track->mCblk->flags & CBLK_INVALID)) {
-            result |= TRACK_SESSION;
-            break;
-        }
-    }
-
-    return result;
-}
-
-uint32_t AudioFlinger::PlaybackThread::getStrategyForSession_l(int sessionId)
-{
-    // session AUDIO_SESSION_OUTPUT_MIX is placed in same strategy as MUSIC stream so that
-    // it is moved to correct output by audio policy manager when A2DP is connected or disconnected
-    if (sessionId == AUDIO_SESSION_OUTPUT_MIX) {
-        return AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC);
-    }
-    for (size_t i = 0; i < mTracks.size(); i++) {
-        sp<Track> track = mTracks[i];
-        if (sessionId == track->sessionId() &&
-                !(track->mCblk->flags & CBLK_INVALID)) {
-            return AudioSystem::getStrategyForStream(track->streamType());
-        }
-    }
-    return AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC);
-}
-
-
-AudioFlinger::AudioStreamOut* AudioFlinger::PlaybackThread::getOutput() const
-{
-    Mutex::Autolock _l(mLock);
-    return mOutput;
-}
-
-AudioFlinger::AudioStreamOut* AudioFlinger::PlaybackThread::clearOutput()
-{
-    Mutex::Autolock _l(mLock);
-    AudioStreamOut *output = mOutput;
-    mOutput = NULL;
-    // FIXME FastMixer might also have a raw ptr to mOutputSink;
-    //       must push a NULL and wait for ack
-    mOutputSink.clear();
-    mPipeSink.clear();
-    mNormalSink.clear();
-    return output;
-}
-
-// this method must always be called either with ThreadBase mLock held or inside the thread loop
-audio_stream_t* AudioFlinger::PlaybackThread::stream() const
-{
-    if (mOutput == NULL) {
-        return NULL;
-    }
-    return &mOutput->stream->common;
-}
-
-uint32_t AudioFlinger::PlaybackThread::activeSleepTimeUs() const
-{
-    return (uint32_t)((uint32_t)((mNormalFrameCount * 1000) / mSampleRate) * 1000);
-}
-
-status_t AudioFlinger::PlaybackThread::setSyncEvent(const sp<SyncEvent>& event)
-{
-    if (!isValidSyncEvent(event)) {
-        return BAD_VALUE;
-    }
-
-    Mutex::Autolock _l(mLock);
-
-    for (size_t i = 0; i < mTracks.size(); ++i) {
-        sp<Track> track = mTracks[i];
-        if (event->triggerSession() == track->sessionId()) {
-            (void) track->setSyncEvent(event);
-            return NO_ERROR;
-        }
-    }
-
-    return NAME_NOT_FOUND;
-}
-
-bool AudioFlinger::PlaybackThread::isValidSyncEvent(const sp<SyncEvent>& event) const
-{
-    return event->type() == AudioSystem::SYNC_EVENT_PRESENTATION_COMPLETE;
-}
-
-void AudioFlinger::PlaybackThread::threadLoop_removeTracks(
-        const Vector< sp<Track> >& tracksToRemove)
-{
-    size_t count = tracksToRemove.size();
-    if (CC_UNLIKELY(count)) {
-        for (size_t i = 0 ; i < count ; i++) {
-            const sp<Track>& track = tracksToRemove.itemAt(i);
-            if ((track->sharedBuffer() != 0) &&
-                    (track->mState == TrackBase::ACTIVE || track->mState == TrackBase::RESUMING)) {
-                AudioSystem::stopOutput(mId, track->streamType(), track->sessionId());
-            }
-        }
-    }
-
-}
-
-// ----------------------------------------------------------------------------
-
-AudioFlinger::MixerThread::MixerThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output,
-        audio_io_handle_t id, audio_devices_t device, type_t type)
-    :   PlaybackThread(audioFlinger, output, id, device, type),
-        // mAudioMixer below
-        // mFastMixer below
-        mFastMixerFutex(0)
-        // mOutputSink below
-        // mPipeSink below
-        // mNormalSink below
-{
-    ALOGV("MixerThread() id=%d device=%#x type=%d", id, device, type);
-    ALOGV("mSampleRate=%u, mChannelMask=%#x, mChannelCount=%d, mFormat=%d, mFrameSize=%u, "
-            "mFrameCount=%d, mNormalFrameCount=%d",
-            mSampleRate, mChannelMask, mChannelCount, mFormat, mFrameSize, mFrameCount,
-            mNormalFrameCount);
-    mAudioMixer = new AudioMixer(mNormalFrameCount, mSampleRate);
-
-    // FIXME - Current mixer implementation only supports stereo output
-    if (mChannelCount != FCC_2) {
-        ALOGE("Invalid audio hardware channel count %d", mChannelCount);
-    }
-
-    // create an NBAIO sink for the HAL output stream, and negotiate
-    mOutputSink = new AudioStreamOutSink(output->stream);
-    size_t numCounterOffers = 0;
-    const NBAIO_Format offers[1] = {Format_from_SR_C(mSampleRate, mChannelCount)};
-    ssize_t index = mOutputSink->negotiate(offers, 1, NULL, numCounterOffers);
-    ALOG_ASSERT(index == 0);
-
-    // initialize fast mixer depending on configuration
-    bool initFastMixer;
-    switch (kUseFastMixer) {
-    case FastMixer_Never:
-        initFastMixer = false;
-        break;
-    case FastMixer_Always:
-        initFastMixer = true;
-        break;
-    case FastMixer_Static:
-    case FastMixer_Dynamic:
-        initFastMixer = mFrameCount < mNormalFrameCount;
-        break;
-    }
-    if (initFastMixer) {
-
-        // create a MonoPipe to connect our submix to FastMixer
-        NBAIO_Format format = mOutputSink->format();
-        // This pipe depth compensates for scheduling latency of the normal mixer thread.
-        // When it wakes up after a maximum latency, it runs a few cycles quickly before
-        // finally blocking.  Note the pipe implementation rounds up the request to a power of 2.
-        MonoPipe *monoPipe = new MonoPipe(mNormalFrameCount * 4, format, true /*writeCanBlock*/);
-        const NBAIO_Format offers[1] = {format};
-        size_t numCounterOffers = 0;
-        ssize_t index = monoPipe->negotiate(offers, 1, NULL, numCounterOffers);
-        ALOG_ASSERT(index == 0);
-        monoPipe->setAvgFrames((mScreenState & 1) ?
-                (monoPipe->maxFrames() * 7) / 8 : mNormalFrameCount * 2);
-        mPipeSink = monoPipe;
-
-#ifdef TEE_SINK_FRAMES
-        // create a Pipe to archive a copy of FastMixer's output for dumpsys
-        Pipe *teeSink = new Pipe(TEE_SINK_FRAMES, format);
-        numCounterOffers = 0;
-        index = teeSink->negotiate(offers, 1, NULL, numCounterOffers);
-        ALOG_ASSERT(index == 0);
-        mTeeSink = teeSink;
-        PipeReader *teeSource = new PipeReader(*teeSink);
-        numCounterOffers = 0;
-        index = teeSource->negotiate(offers, 1, NULL, numCounterOffers);
-        ALOG_ASSERT(index == 0);
-        mTeeSource = teeSource;
-#endif
-
-        // create fast mixer and configure it initially with just one fast track for our submix
-        mFastMixer = new FastMixer();
-        FastMixerStateQueue *sq = mFastMixer->sq();
-#ifdef STATE_QUEUE_DUMP
-        sq->setObserverDump(&mStateQueueObserverDump);
-        sq->setMutatorDump(&mStateQueueMutatorDump);
-#endif
-        FastMixerState *state = sq->begin();
-        FastTrack *fastTrack = &state->mFastTracks[0];
-        // wrap the source side of the MonoPipe to make it an AudioBufferProvider
-        fastTrack->mBufferProvider = new SourceAudioBufferProvider(new MonoPipeReader(monoPipe));
-        fastTrack->mVolumeProvider = NULL;
-        fastTrack->mGeneration++;
-        state->mFastTracksGen++;
-        state->mTrackMask = 1;
-        // fast mixer will use the HAL output sink
-        state->mOutputSink = mOutputSink.get();
-        state->mOutputSinkGen++;
-        state->mFrameCount = mFrameCount;
-        state->mCommand = FastMixerState::COLD_IDLE;
-        // already done in constructor initialization list
-        //mFastMixerFutex = 0;
-        state->mColdFutexAddr = &mFastMixerFutex;
-        state->mColdGen++;
-        state->mDumpState = &mFastMixerDumpState;
-        state->mTeeSink = mTeeSink.get();
-        sq->end();
-        sq->push(FastMixerStateQueue::BLOCK_UNTIL_PUSHED);
-
-        // start the fast mixer
-        mFastMixer->run("FastMixer", PRIORITY_URGENT_AUDIO);
-        pid_t tid = mFastMixer->getTid();
-        int err = requestPriority(getpid_cached, tid, kPriorityFastMixer);
-        if (err != 0) {
-            ALOGW("Policy SCHED_FIFO priority %d is unavailable for pid %d tid %d; error %d",
-                    kPriorityFastMixer, getpid_cached, tid, err);
-        }
-
-#ifdef AUDIO_WATCHDOG
-        // create and start the watchdog
-        mAudioWatchdog = new AudioWatchdog();
-        mAudioWatchdog->setDump(&mAudioWatchdogDump);
-        mAudioWatchdog->run("AudioWatchdog", PRIORITY_URGENT_AUDIO);
-        tid = mAudioWatchdog->getTid();
-        err = requestPriority(getpid_cached, tid, kPriorityFastMixer);
-        if (err != 0) {
-            ALOGW("Policy SCHED_FIFO priority %d is unavailable for pid %d tid %d; error %d",
-                    kPriorityFastMixer, getpid_cached, tid, err);
-        }
-#endif
-
-    } else {
-        mFastMixer = NULL;
-    }
-
-    switch (kUseFastMixer) {
-    case FastMixer_Never:
-    case FastMixer_Dynamic:
-        mNormalSink = mOutputSink;
-        break;
-    case FastMixer_Always:
-        mNormalSink = mPipeSink;
-        break;
-    case FastMixer_Static:
-        mNormalSink = initFastMixer ? mPipeSink : mOutputSink;
-        break;
-    }
-}
-
-AudioFlinger::MixerThread::~MixerThread()
-{
-    if (mFastMixer != NULL) {
-        FastMixerStateQueue *sq = mFastMixer->sq();
-        FastMixerState *state = sq->begin();
-        if (state->mCommand == FastMixerState::COLD_IDLE) {
-            int32_t old = android_atomic_inc(&mFastMixerFutex);
-            if (old == -1) {
-                __futex_syscall3(&mFastMixerFutex, FUTEX_WAKE_PRIVATE, 1);
-            }
-        }
-        state->mCommand = FastMixerState::EXIT;
-        sq->end();
-        sq->push(FastMixerStateQueue::BLOCK_UNTIL_PUSHED);
-        mFastMixer->join();
-        // Though the fast mixer thread has exited, it's state queue is still valid.
-        // We'll use that extract the final state which contains one remaining fast track
-        // corresponding to our sub-mix.
-        state = sq->begin();
-        ALOG_ASSERT(state->mTrackMask == 1);
-        FastTrack *fastTrack = &state->mFastTracks[0];
-        ALOG_ASSERT(fastTrack->mBufferProvider != NULL);
-        delete fastTrack->mBufferProvider;
-        sq->end(false /*didModify*/);
-        delete mFastMixer;
-#ifdef AUDIO_WATCHDOG
-        if (mAudioWatchdog != 0) {
-            mAudioWatchdog->requestExit();
-            mAudioWatchdog->requestExitAndWait();
-            mAudioWatchdog.clear();
-        }
-#endif
-    }
-    delete mAudioMixer;
-}
-
-class CpuStats {
-public:
-    CpuStats();
-    void sample(const String8 &title);
-#ifdef DEBUG_CPU_USAGE
-private:
-    ThreadCpuUsage mCpuUsage;           // instantaneous thread CPU usage in wall clock ns
-    CentralTendencyStatistics mWcStats; // statistics on thread CPU usage in wall clock ns
-
-    CentralTendencyStatistics mHzStats; // statistics on thread CPU usage in cycles
-
-    int mCpuNum;                        // thread's current CPU number
-    int mCpukHz;                        // frequency of thread's current CPU in kHz
-#endif
-};
-
-CpuStats::CpuStats()
-#ifdef DEBUG_CPU_USAGE
-    : mCpuNum(-1), mCpukHz(-1)
-#endif
-{
-}
-
-void CpuStats::sample(const String8 &title) {
-#ifdef DEBUG_CPU_USAGE
-    // get current thread's delta CPU time in wall clock ns
-    double wcNs;
-    bool valid = mCpuUsage.sampleAndEnable(wcNs);
-
-    // record sample for wall clock statistics
-    if (valid) {
-        mWcStats.sample(wcNs);
-    }
-
-    // get the current CPU number
-    int cpuNum = sched_getcpu();
-
-    // get the current CPU frequency in kHz
-    int cpukHz = mCpuUsage.getCpukHz(cpuNum);
-
-    // check if either CPU number or frequency changed
-    if (cpuNum != mCpuNum || cpukHz != mCpukHz) {
-        mCpuNum = cpuNum;
-        mCpukHz = cpukHz;
-        // ignore sample for purposes of cycles
-        valid = false;
-    }
-
-    // if no change in CPU number or frequency, then record sample for cycle statistics
-    if (valid && mCpukHz > 0) {
-        double cycles = wcNs * cpukHz * 0.000001;
-        mHzStats.sample(cycles);
-    }
-
-    unsigned n = mWcStats.n();
-    // mCpuUsage.elapsed() is expensive, so don't call it every loop
-    if ((n & 127) == 1) {
-        long long elapsed = mCpuUsage.elapsed();
-        if (elapsed >= DEBUG_CPU_USAGE * 1000000000LL) {
-            double perLoop = elapsed / (double) n;
-            double perLoop100 = perLoop * 0.01;
-            double perLoop1k = perLoop * 0.001;
-            double mean = mWcStats.mean();
-            double stddev = mWcStats.stddev();
-            double minimum = mWcStats.minimum();
-            double maximum = mWcStats.maximum();
-            double meanCycles = mHzStats.mean();
-            double stddevCycles = mHzStats.stddev();
-            double minCycles = mHzStats.minimum();
-            double maxCycles = mHzStats.maximum();
-            mCpuUsage.resetElapsed();
-            mWcStats.reset();
-            mHzStats.reset();
-            ALOGD("CPU usage for %s over past %.1f secs\n"
-                "  (%u mixer loops at %.1f mean ms per loop):\n"
-                "  us per mix loop: mean=%.0f stddev=%.0f min=%.0f max=%.0f\n"
-                "  %% of wall: mean=%.1f stddev=%.1f min=%.1f max=%.1f\n"
-                "  MHz: mean=%.1f, stddev=%.1f, min=%.1f max=%.1f",
-                    title.string(),
-                    elapsed * .000000001, n, perLoop * .000001,
-                    mean * .001,
-                    stddev * .001,
-                    minimum * .001,
-                    maximum * .001,
-                    mean / perLoop100,
-                    stddev / perLoop100,
-                    minimum / perLoop100,
-                    maximum / perLoop100,
-                    meanCycles / perLoop1k,
-                    stddevCycles / perLoop1k,
-                    minCycles / perLoop1k,
-                    maxCycles / perLoop1k);
-
-        }
-    }
-#endif
-};
-
-void AudioFlinger::PlaybackThread::checkSilentMode_l()
-{
-    if (!mMasterMute) {
-        char value[PROPERTY_VALUE_MAX];
-        if (property_get("ro.audio.silent", value, "0") > 0) {
-            char *endptr;
-            unsigned long ul = strtoul(value, &endptr, 0);
-            if (*endptr == '\0' && ul != 0) {
-                ALOGD("Silence is golden");
-                // The setprop command will not allow a property to be changed after
-                // the first time it is set, so we don't have to worry about un-muting.
-                setMasterMute_l(true);
-            }
-        }
-    }
-}
-
-bool AudioFlinger::PlaybackThread::threadLoop()
-{
-    Vector< sp<Track> > tracksToRemove;
-
-    standbyTime = systemTime();
-
-    // MIXER
-    nsecs_t lastWarning = 0;
-
-    // DUPLICATING
-    // FIXME could this be made local to while loop?
-    writeFrames = 0;
-
-    cacheParameters_l();
-    sleepTime = idleSleepTime;
-
-    if (mType == MIXER) {
-        sleepTimeShift = 0;
-    }
-
-    CpuStats cpuStats;
-    const String8 myName(String8::format("thread %p type %d TID %d", this, mType, gettid()));
-
-    acquireWakeLock();
-
-    while (!exitPending())
-    {
-        cpuStats.sample(myName);
-
-        Vector< sp<EffectChain> > effectChains;
-
-        processConfigEvents();
-
-        { // scope for mLock
-
-            Mutex::Autolock _l(mLock);
-
-            if (checkForNewParameters_l()) {
-                cacheParameters_l();
-            }
-
-            saveOutputTracks();
-
-            // put audio hardware into standby after short delay
-            if (CC_UNLIKELY((!mActiveTracks.size() && systemTime() > standbyTime) ||
-                        isSuspended())) {
-                if (!mStandby) {
-
-                    threadLoop_standby();
-
-                    mStandby = true;
-                }
-
-                if (!mActiveTracks.size() && mConfigEvents.isEmpty()) {
-                    // we're about to wait, flush the binder command buffer
-                    IPCThreadState::self()->flushCommands();
-
-                    clearOutputTracks();
-
-                    if (exitPending()) {
-                        break;
-                    }
-
-                    releaseWakeLock_l();
-                    // wait until we have something to do...
-                    ALOGV("%s going to sleep", myName.string());
-                    mWaitWorkCV.wait(mLock);
-                    ALOGV("%s waking up", myName.string());
-                    acquireWakeLock_l();
-
-                    mMixerStatus = MIXER_IDLE;
-                    mMixerStatusIgnoringFastTracks = MIXER_IDLE;
-                    mBytesWritten = 0;
-
-                    checkSilentMode_l();
-
-                    standbyTime = systemTime() + standbyDelay;
-                    sleepTime = idleSleepTime;
-                    if (mType == MIXER) {
-                        sleepTimeShift = 0;
-                    }
-
-                    continue;
-                }
-            }
-
-            // mMixerStatusIgnoringFastTracks is also updated internally
-            mMixerStatus = prepareTracks_l(&tracksToRemove);
-
-            // prevent any changes in effect chain list and in each effect chain
-            // during mixing and effect process as the audio buffers could be deleted
-            // or modified if an effect is created or deleted
-            lockEffectChains_l(effectChains);
-        }
-
-        if (CC_LIKELY(mMixerStatus == MIXER_TRACKS_READY)) {
-            threadLoop_mix();
-        } else {
-            threadLoop_sleepTime();
-        }
-
-        if (isSuspended()) {
-            sleepTime = suspendSleepTimeUs();
-            mBytesWritten += mixBufferSize;
-        }
-
-        // only process effects if we're going to write
-        if (sleepTime == 0) {
-            for (size_t i = 0; i < effectChains.size(); i ++) {
-                effectChains[i]->process_l();
-            }
-        }
-
-        // enable changes in effect chain
-        unlockEffectChains(effectChains);
-
-        // sleepTime == 0 means we must write to audio hardware
-        if (sleepTime == 0) {
-
-            threadLoop_write();
-
-if (mType == MIXER) {
-            // write blocked detection
-            nsecs_t now = systemTime();
-            nsecs_t delta = now - mLastWriteTime;
-            if (!mStandby && delta > maxPeriod) {
-                mNumDelayedWrites++;
-                if ((now - lastWarning) > kWarningThrottleNs) {
-#if defined(ATRACE_TAG) && (ATRACE_TAG != ATRACE_TAG_NEVER)
-                    ScopedTrace st(ATRACE_TAG, "underrun");
-#endif
-                    ALOGW("write blocked for %llu msecs, %d delayed writes, thread %p",
-                            ns2ms(delta), mNumDelayedWrites, this);
-                    lastWarning = now;
-                }
-            }
-}
-
-            mStandby = false;
-        } else {
-            usleep(sleepTime);
-        }
-
-        // Finally let go of removed track(s), without the lock held
-        // since we can't guarantee the destructors won't acquire that
-        // same lock.  This will also mutate and push a new fast mixer state.
-        threadLoop_removeTracks(tracksToRemove);
-        tracksToRemove.clear();
-
-        // FIXME I don't understand the need for this here;
-        //       it was in the original code but maybe the
-        //       assignment in saveOutputTracks() makes this unnecessary?
-        clearOutputTracks();
-
-        // Effect chains will be actually deleted here if they were removed from
-        // mEffectChains list during mixing or effects processing
-        effectChains.clear();
-
-        // FIXME Note that the above .clear() is no longer necessary since effectChains
-        // is now local to this block, but will keep it for now (at least until merge done).
-    }
-
-    // for DuplicatingThread, standby mode is handled by the outputTracks, otherwise ...
-    if (mType == MIXER || mType == DIRECT) {
-        // put output stream into standby mode
-        if (!mStandby) {
-            mOutput->stream->common.standby(&mOutput->stream->common);
-        }
-    }
-
-    releaseWakeLock();
-
-    ALOGV("Thread %p type %d exiting", this, mType);
-    return false;
-}
-
-void AudioFlinger::MixerThread::threadLoop_removeTracks(const Vector< sp<Track> >& tracksToRemove)
-{
-    PlaybackThread::threadLoop_removeTracks(tracksToRemove);
-}
-
-void AudioFlinger::MixerThread::threadLoop_write()
-{
-    // FIXME we should only do one push per cycle; confirm this is true
-    // Start the fast mixer if it's not already running
-    if (mFastMixer != NULL) {
-        FastMixerStateQueue *sq = mFastMixer->sq();
-        FastMixerState *state = sq->begin();
-        if (state->mCommand != FastMixerState::MIX_WRITE &&
-                (kUseFastMixer != FastMixer_Dynamic || state->mTrackMask > 1)) {
-            if (state->mCommand == FastMixerState::COLD_IDLE) {
-                int32_t old = android_atomic_inc(&mFastMixerFutex);
-                if (old == -1) {
-                    __futex_syscall3(&mFastMixerFutex, FUTEX_WAKE_PRIVATE, 1);
-                }
-#ifdef AUDIO_WATCHDOG
-                if (mAudioWatchdog != 0) {
-                    mAudioWatchdog->resume();
-                }
-#endif
-            }
-            state->mCommand = FastMixerState::MIX_WRITE;
-            sq->end();
-            sq->push(FastMixerStateQueue::BLOCK_UNTIL_PUSHED);
-            if (kUseFastMixer == FastMixer_Dynamic) {
-                mNormalSink = mPipeSink;
-            }
-        } else {
-            sq->end(false /*didModify*/);
-        }
-    }
-    PlaybackThread::threadLoop_write();
-}
-
-// shared by MIXER and DIRECT, overridden by DUPLICATING
-void AudioFlinger::PlaybackThread::threadLoop_write()
-{
-    // FIXME rewrite to reduce number of system calls
-    mLastWriteTime = systemTime();
-    mInWrite = true;
-    int bytesWritten;
-
-    // If an NBAIO sink is present, use it to write the normal mixer's submix
-    if (mNormalSink != 0) {
-#define mBitShift 2 // FIXME
-        size_t count = mixBufferSize >> mBitShift;
-#if defined(ATRACE_TAG) && (ATRACE_TAG != ATRACE_TAG_NEVER)
-        Tracer::traceBegin(ATRACE_TAG, "write");
-#endif
-        // update the setpoint when gScreenState changes
-        uint32_t screenState = gScreenState;
-        if (screenState != mScreenState) {
-            mScreenState = screenState;
-            MonoPipe *pipe = (MonoPipe *)mPipeSink.get();
-            if (pipe != NULL) {
-                pipe->setAvgFrames((mScreenState & 1) ?
-                        (pipe->maxFrames() * 7) / 8 : mNormalFrameCount * 2);
-            }
-        }
-        ssize_t framesWritten = mNormalSink->write(mMixBuffer, count);
-#if defined(ATRACE_TAG) && (ATRACE_TAG != ATRACE_TAG_NEVER)
-        Tracer::traceEnd(ATRACE_TAG);
-#endif
-        if (framesWritten > 0) {
-            bytesWritten = framesWritten << mBitShift;
-        } else {
-            bytesWritten = framesWritten;
-        }
-    // otherwise use the HAL / AudioStreamOut directly
-    } else {
-        // Direct output thread.
-        bytesWritten = (int)mOutput->stream->write(mOutput->stream, mMixBuffer, mixBufferSize);
-    }
-
-    if (bytesWritten > 0) {
-        mBytesWritten += mixBufferSize;
-    }
-    mNumWrites++;
-    mInWrite = false;
-}
-
-void AudioFlinger::MixerThread::threadLoop_standby()
-{
-    // Idle the fast mixer if it's currently running
-    if (mFastMixer != NULL) {
-        FastMixerStateQueue *sq = mFastMixer->sq();
-        FastMixerState *state = sq->begin();
-        if (!(state->mCommand & FastMixerState::IDLE)) {
-            state->mCommand = FastMixerState::COLD_IDLE;
-            state->mColdFutexAddr = &mFastMixerFutex;
-            state->mColdGen++;
-            mFastMixerFutex = 0;
-            sq->end();
-            // BLOCK_UNTIL_PUSHED would be insufficient, as we need it to stop doing I/O now
-            sq->push(FastMixerStateQueue::BLOCK_UNTIL_ACKED);
-            if (kUseFastMixer == FastMixer_Dynamic) {
-                mNormalSink = mOutputSink;
-            }
-#ifdef AUDIO_WATCHDOG
-            if (mAudioWatchdog != 0) {
-                mAudioWatchdog->pause();
-            }
-#endif
-        } else {
-            sq->end(false /*didModify*/);
-        }
-    }
-    PlaybackThread::threadLoop_standby();
-}
-
-// shared by MIXER and DIRECT, overridden by DUPLICATING
-void AudioFlinger::PlaybackThread::threadLoop_standby()
-{
-    ALOGV("Audio hardware entering standby, mixer %p, suspend count %d", this, mSuspended);
-    mOutput->stream->common.standby(&mOutput->stream->common);
-}
-
-void AudioFlinger::MixerThread::threadLoop_mix()
-{
-    // obtain the presentation timestamp of the next output buffer
-    int64_t pts;
-    status_t status = INVALID_OPERATION;
-
-    if (mNormalSink != 0) {
-        status = mNormalSink->getNextWriteTimestamp(&pts);
-    } else {
-        status = mOutputSink->getNextWriteTimestamp(&pts);
-    }
-
-    if (status != NO_ERROR) {
-        pts = AudioBufferProvider::kInvalidPTS;
-    }
-
-    // mix buffers...
-    mAudioMixer->process(pts);
-    // increase sleep time progressively when application underrun condition clears.
-    // Only increase sleep time if the mixer is ready for two consecutive times to avoid
-    // that a steady state of alternating ready/not ready conditions keeps the sleep time
-    // such that we would underrun the audio HAL.
-    if ((sleepTime == 0) && (sleepTimeShift > 0)) {
-        sleepTimeShift--;
-    }
-    sleepTime = 0;
-    standbyTime = systemTime() + standbyDelay;
-    //TODO: delay standby when effects have a tail
-}
-
-void AudioFlinger::MixerThread::threadLoop_sleepTime()
-{
-    // If no tracks are ready, sleep once for the duration of an output
-    // buffer size, then write 0s to the output
-    if (sleepTime == 0) {
-        if (mMixerStatus == MIXER_TRACKS_ENABLED) {
-            sleepTime = activeSleepTime >> sleepTimeShift;
-            if (sleepTime < kMinThreadSleepTimeUs) {
-                sleepTime = kMinThreadSleepTimeUs;
-            }
-            // reduce sleep time in case of consecutive application underruns to avoid
-            // starving the audio HAL. As activeSleepTimeUs() is larger than a buffer
-            // duration we would end up writing less data than needed by the audio HAL if
-            // the condition persists.
-            if (sleepTimeShift < kMaxThreadSleepTimeShift) {
-                sleepTimeShift++;
-            }
-        } else {
-            sleepTime = idleSleepTime;
-        }
-    } else if (mBytesWritten != 0 || (mMixerStatus == MIXER_TRACKS_ENABLED)) {
-        memset (mMixBuffer, 0, mixBufferSize);
-        sleepTime = 0;
-        ALOGV_IF(mBytesWritten == 0 && (mMixerStatus == MIXER_TRACKS_ENABLED),
-                "anticipated start");
-    }
-    // TODO add standby time extension fct of effect tail
-}
-
-// prepareTracks_l() must be called with ThreadBase::mLock held
-AudioFlinger::PlaybackThread::mixer_state AudioFlinger::MixerThread::prepareTracks_l(
-        Vector< sp<Track> > *tracksToRemove)
-{
-
-    mixer_state mixerStatus = MIXER_IDLE;
-    // find out which tracks need to be processed
-    size_t count = mActiveTracks.size();
-    size_t mixedTracks = 0;
-    size_t tracksWithEffect = 0;
-    // counts only _active_ fast tracks
-    size_t fastTracks = 0;
-    uint32_t resetMask = 0; // bit mask of fast tracks that need to be reset
-
-    float masterVolume = mMasterVolume;
-    bool masterMute = mMasterMute;
-
-    if (masterMute) {
-        masterVolume = 0;
-    }
-    // Delegate master volume control to effect in output mix effect chain if needed
-    sp<EffectChain> chain = getEffectChain_l(AUDIO_SESSION_OUTPUT_MIX);
-    if (chain != 0) {
-        uint32_t v = (uint32_t)(masterVolume * (1 << 24));
-        chain->setVolume_l(&v, &v);
-        masterVolume = (float)((v + (1 << 23)) >> 24);
-        chain.clear();
-    }
-
-    // prepare a new state to push
-    FastMixerStateQueue *sq = NULL;
-    FastMixerState *state = NULL;
-    bool didModify = false;
-    FastMixerStateQueue::block_t block = FastMixerStateQueue::BLOCK_UNTIL_PUSHED;
-    if (mFastMixer != NULL) {
-        sq = mFastMixer->sq();
-        state = sq->begin();
-    }
-
-    for (size_t i=0 ; i<count ; i++) {
-        sp<Track> t = mActiveTracks[i].promote();
-        if (t == 0) {
-            continue;
-        }
-
-        // this const just means the local variable doesn't change
-        Track* const track = t.get();
-
-        // process fast tracks
-        if (track->isFastTrack()) {
-
-            // It's theoretically possible (though unlikely) for a fast track to be created
-            // and then removed within the same normal mix cycle.  This is not a problem, as
-            // the track never becomes active so it's fast mixer slot is never touched.
-            // The converse, of removing an (active) track and then creating a new track
-            // at the identical fast mixer slot within the same normal mix cycle,
-            // is impossible because the slot isn't marked available until the end of each cycle.
-            int j = track->mFastIndex;
-            ALOG_ASSERT(0 < j && j < (int)FastMixerState::kMaxFastTracks);
-            ALOG_ASSERT(!(mFastTrackAvailMask & (1 << j)));
-            FastTrack *fastTrack = &state->mFastTracks[j];
-
-            // Determine whether the track is currently in underrun condition,
-            // and whether it had a recent underrun.
-            FastTrackDump *ftDump = &mFastMixerDumpState.mTracks[j];
-            FastTrackUnderruns underruns = ftDump->mUnderruns;
-            uint32_t recentFull = (underruns.mBitFields.mFull -
-                    track->mObservedUnderruns.mBitFields.mFull) & UNDERRUN_MASK;
-            uint32_t recentPartial = (underruns.mBitFields.mPartial -
-                    track->mObservedUnderruns.mBitFields.mPartial) & UNDERRUN_MASK;
-            uint32_t recentEmpty = (underruns.mBitFields.mEmpty -
-                    track->mObservedUnderruns.mBitFields.mEmpty) & UNDERRUN_MASK;
-            uint32_t recentUnderruns = recentPartial + recentEmpty;
-            track->mObservedUnderruns = underruns;
-            // don't count underruns that occur while stopping or pausing
-            // or stopped which can occur when flush() is called while active
-            if (!(track->isStopping() || track->isPausing() || track->isStopped())) {
-                track->mUnderrunCount += recentUnderruns;
-            }
-
-            // This is similar to the state machine for normal tracks,
-            // with a few modifications for fast tracks.
-            bool isActive = true;
-            switch (track->mState) {
-            case TrackBase::STOPPING_1:
-                // track stays active in STOPPING_1 state until first underrun
-                if (recentUnderruns > 0) {
-                    track->mState = TrackBase::STOPPING_2;
-                }
-                break;
-            case TrackBase::PAUSING:
-                // ramp down is not yet implemented
-                track->setPaused();
-                break;
-            case TrackBase::RESUMING:
-                // ramp up is not yet implemented
-                track->mState = TrackBase::ACTIVE;
-                break;
-            case TrackBase::ACTIVE:
-                if (recentFull > 0 || recentPartial > 0) {
-                    // track has provided at least some frames recently: reset retry count
-                    track->mRetryCount = kMaxTrackRetries;
-                }
-                if (recentUnderruns == 0) {
-                    // no recent underruns: stay active
-                    break;
-                }
-                // there has recently been an underrun of some kind
-                if (track->sharedBuffer() == 0) {
-                    // were any of the recent underruns "empty" (no frames available)?
-                    if (recentEmpty == 0) {
-                        // no, then ignore the partial underruns as they are allowed indefinitely
-                        break;
-                    }
-                    // there has recently been an "empty" underrun: decrement the retry counter
-                    if (--(track->mRetryCount) > 0) {
-                        break;
-                    }
-                    // indicate to client process that the track was disabled because of underrun;
-                    // it will then automatically call start() when data is available
-                    android_atomic_or(CBLK_DISABLED, &track->mCblk->flags);
-                    // remove from active list, but state remains ACTIVE [confusing but true]
-                    isActive = false;
-                    break;
-                }
-                // fall through
-            case TrackBase::STOPPING_2:
-            case TrackBase::PAUSED:
-            case TrackBase::TERMINATED:
-            case TrackBase::STOPPED:
-            case TrackBase::FLUSHED:   // flush() while active
-                // Check for presentation complete if track is inactive
-                // We have consumed all the buffers of this track.
-                // This would be incomplete if we auto-paused on underrun
-                {
-                    size_t audioHALFrames =
-                            (mOutput->stream->get_latency(mOutput->stream)*mSampleRate) / 1000;
-                    size_t framesWritten = mBytesWritten / mFrameSize;
-                    if (!(mStandby || track->presentationComplete(framesWritten, audioHALFrames))) {
-                        // track stays in active list until presentation is complete
-                        break;
-                    }
-                }
-                if (track->isStopping_2()) {
-                    track->mState = TrackBase::STOPPED;
-                }
-                if (track->isStopped()) {
-                    // Can't reset directly, as fast mixer is still polling this track
-                    //   track->reset();
-                    // So instead mark this track as needing to be reset after push with ack
-                    resetMask |= 1 << i;
-                }
-                isActive = false;
-                break;
-            case TrackBase::IDLE:
-            default:
-                LOG_FATAL("unexpected track state %d", track->mState);
-            }
-
-            if (isActive) {
-                // was it previously inactive?
-                if (!(state->mTrackMask & (1 << j))) {
-                    ExtendedAudioBufferProvider *eabp = track;
-                    VolumeProvider *vp = track;
-                    fastTrack->mBufferProvider = eabp;
-                    fastTrack->mVolumeProvider = vp;
-                    fastTrack->mSampleRate = track->mSampleRate;
-                    fastTrack->mChannelMask = track->mChannelMask;
-                    fastTrack->mGeneration++;
-                    state->mTrackMask |= 1 << j;
-                    didModify = true;
-                    // no acknowledgement required for newly active tracks
-                }
-                // cache the combined master volume and stream type volume for fast mixer; this
-                // lacks any synchronization or barrier so VolumeProvider may read a stale value
-                track->mCachedVolume = track->isMuted() ?
-                        0 : masterVolume * mStreamTypes[track->streamType()].volume;
-                ++fastTracks;
-            } else {
-                // was it previously active?
-                if (state->mTrackMask & (1 << j)) {
-                    fastTrack->mBufferProvider = NULL;
-                    fastTrack->mGeneration++;
-                    state->mTrackMask &= ~(1 << j);
-                    didModify = true;
-                    // If any fast tracks were removed, we must wait for acknowledgement
-                    // because we're about to decrement the last sp<> on those tracks.
-                    block = FastMixerStateQueue::BLOCK_UNTIL_ACKED;
-                } else {
-                    LOG_FATAL("fast track %d should have been active", j);
-                }
-                tracksToRemove->add(track);
-                // Avoids a misleading display in dumpsys
-                track->mObservedUnderruns.mBitFields.mMostRecent = UNDERRUN_FULL;
-            }
-            continue;
-        }
-
-        {   // local variable scope to avoid goto warning
-
-        audio_track_cblk_t* cblk = track->cblk();
-
-        // The first time a track is added we wait
-        // for all its buffers to be filled before processing it
-        int name = track->name();
-        // make sure that we have enough frames to mix one full buffer.
-        // enforce this condition only once to enable draining the buffer in case the client
-        // app does not call stop() and relies on underrun to stop:
-        // hence the test on (mMixerStatus == MIXER_TRACKS_READY) meaning the track was mixed
-        // during last round
-        uint32_t minFrames = 1;
-        if ((track->sharedBuffer() == 0) && !track->isStopped() && !track->isPausing() &&
-                (mMixerStatusIgnoringFastTracks == MIXER_TRACKS_READY)) {
-            if (t->sampleRate() == mSampleRate) {
-                minFrames = mNormalFrameCount;
-            } else {
-                // +1 for rounding and +1 for additional sample needed for interpolation
-                minFrames = (mNormalFrameCount * t->sampleRate()) / mSampleRate + 1 + 1;
-                // add frames already consumed but not yet released by the resampler
-                // because cblk->framesReady() will include these frames
-                minFrames += mAudioMixer->getUnreleasedFrames(track->name());
-                // the minimum track buffer size is normally twice the number of frames necessary
-                // to fill one buffer and the resampler should not leave more than one buffer worth
-                // of unreleased frames after each pass, but just in case...
-                ALOG_ASSERT(minFrames <= cblk->frameCount);
-            }
-        }
-        if ((track->framesReady() >= minFrames) && track->isReady() &&
-                !track->isPaused() && !track->isTerminated())
-        {
-            ALOGVV("track %d u=%08x, s=%08x [OK] on thread %p", name, cblk->user, cblk->server,
-                    this);
-
-            mixedTracks++;
-
-            // track->mainBuffer() != mMixBuffer means there is an effect chain
-            // connected to the track
-            chain.clear();
-            if (track->mainBuffer() != mMixBuffer) {
-                chain = getEffectChain_l(track->sessionId());
-                // Delegate volume control to effect in track effect chain if needed
-                if (chain != 0) {
-                    tracksWithEffect++;
-                } else {
-                    ALOGW("prepareTracks_l(): track %d attached to effect but no chain found on "
-                            "session %d",
-                            name, track->sessionId());
-                }
-            }
-
-
-            int param = AudioMixer::VOLUME;
-            if (track->mFillingUpStatus == Track::FS_FILLED) {
-                // no ramp for the first volume setting
-                track->mFillingUpStatus = Track::FS_ACTIVE;
-                if (track->mState == TrackBase::RESUMING) {
-                    track->mState = TrackBase::ACTIVE;
-                    param = AudioMixer::RAMP_VOLUME;
-                }
-                mAudioMixer->setParameter(name, AudioMixer::RESAMPLE, AudioMixer::RESET, NULL);
-            } else if (cblk->server != 0) {
-                // If the track is stopped before the first frame was mixed,
-                // do not apply ramp
-                param = AudioMixer::RAMP_VOLUME;
-            }
-
-            // compute volume for this track
-            uint32_t vl, vr, va;
-            if (track->isMuted() || track->isPausing() ||
-                mStreamTypes[track->streamType()].mute) {
-                vl = vr = va = 0;
-                if (track->isPausing()) {
-                    track->setPaused();
-                }
-            } else {
-
-                // read original volumes with volume control
-                float typeVolume = mStreamTypes[track->streamType()].volume;
-                float v = masterVolume * typeVolume;
-                uint32_t vlr = cblk->getVolumeLR();
-                vl = vlr & 0xFFFF;
-                vr = vlr >> 16;
-                // track volumes come from shared memory, so can't be trusted and must be clamped
-                if (vl > MAX_GAIN_INT) {
-                    ALOGV("Track left volume out of range: %04X", vl);
-                    vl = MAX_GAIN_INT;
-                }
-                if (vr > MAX_GAIN_INT) {
-                    ALOGV("Track right volume out of range: %04X", vr);
-                    vr = MAX_GAIN_INT;
-                }
-                // now apply the master volume and stream type volume
-                vl = (uint32_t)(v * vl) << 12;
-                vr = (uint32_t)(v * vr) << 12;
-                // assuming master volume and stream type volume each go up to 1.0,
-                // vl and vr are now in 8.24 format
-
-                uint16_t sendLevel = cblk->getSendLevel_U4_12();
-                // send level comes from shared memory and so may be corrupt
-                if (sendLevel > MAX_GAIN_INT) {
-                    ALOGV("Track send level out of range: %04X", sendLevel);
-                    sendLevel = MAX_GAIN_INT;
-                }
-                va = (uint32_t)(v * sendLevel);
-            }
-            // Delegate volume control to effect in track effect chain if needed
-            if (chain != 0 && chain->setVolume_l(&vl, &vr)) {
-                // Do not ramp volume if volume is controlled by effect
-                param = AudioMixer::VOLUME;
-                track->mHasVolumeController = true;
-            } else {
-                // force no volume ramp when volume controller was just disabled or removed
-                // from effect chain to avoid volume spike
-                if (track->mHasVolumeController) {
-                    param = AudioMixer::VOLUME;
-                }
-                track->mHasVolumeController = false;
-            }
-
-            // Convert volumes from 8.24 to 4.12 format
-            // This additional clamping is needed in case chain->setVolume_l() overshot
-            vl = (vl + (1 << 11)) >> 12;
-            if (vl > MAX_GAIN_INT) {
-                vl = MAX_GAIN_INT;
-            }
-            vr = (vr + (1 << 11)) >> 12;
-            if (vr > MAX_GAIN_INT) {
-                vr = MAX_GAIN_INT;
-            }
-
-            if (va > MAX_GAIN_INT) {
-                va = MAX_GAIN_INT;   // va is uint32_t, so no need to check for -
-            }
-
-            // XXX: these things DON'T need to be done each time
-            mAudioMixer->setBufferProvider(name, track);
-            mAudioMixer->enable(name);
-
-            mAudioMixer->setParameter(name, param, AudioMixer::VOLUME0, (void *)vl);
-            mAudioMixer->setParameter(name, param, AudioMixer::VOLUME1, (void *)vr);
-            mAudioMixer->setParameter(name, param, AudioMixer::AUXLEVEL, (void *)va);
-            mAudioMixer->setParameter(
-                name,
-                AudioMixer::TRACK,
-                AudioMixer::FORMAT, (void *)track->format());
-            mAudioMixer->setParameter(
-                name,
-                AudioMixer::TRACK,
-                AudioMixer::CHANNEL_MASK, (void *)track->channelMask());
-            mAudioMixer->setParameter(
-                name,
-                AudioMixer::RESAMPLE,
-                AudioMixer::SAMPLE_RATE,
-                (void *)(cblk->sampleRate));
-            mAudioMixer->setParameter(
-                name,
-                AudioMixer::TRACK,
-                AudioMixer::MAIN_BUFFER, (void *)track->mainBuffer());
-            mAudioMixer->setParameter(
-                name,
-                AudioMixer::TRACK,
-                AudioMixer::AUX_BUFFER, (void *)track->auxBuffer());
-
-            // reset retry count
-            track->mRetryCount = kMaxTrackRetries;
-
-            // If one track is ready, set the mixer ready if:
-            //  - the mixer was not ready during previous round OR
-            //  - no other track is not ready
-            if (mMixerStatusIgnoringFastTracks != MIXER_TRACKS_READY ||
-                    mixerStatus != MIXER_TRACKS_ENABLED) {
-                mixerStatus = MIXER_TRACKS_READY;
-            }
-        } else {
-            // clear effect chain input buffer if an active track underruns to avoid sending
-            // previous audio buffer again to effects
-            chain = getEffectChain_l(track->sessionId());
-            if (chain != 0) {
-                chain->clearInputBuffer();
-            }
-
-            ALOGVV("track %d u=%08x, s=%08x [NOT READY] on thread %p", name, cblk->user,
-                    cblk->server, this);
-            if ((track->sharedBuffer() != 0) || track->isTerminated() ||
-                    track->isStopped() || track->isPaused()) {
-                // We have consumed all the buffers of this track.
-                // Remove it from the list of active tracks.
-                // TODO: use actual buffer filling status instead of latency when available from
-                // audio HAL
-                size_t audioHALFrames = (latency_l() * mSampleRate) / 1000;
-                size_t framesWritten = mBytesWritten / mFrameSize;
-                if (mStandby || track->presentationComplete(framesWritten, audioHALFrames)) {
-                    if (track->isStopped()) {
-                        track->reset();
-                    }
-                    tracksToRemove->add(track);
-                }
-            } else {
-                track->mUnderrunCount++;
-                // No buffers for this track. Give it a few chances to
-                // fill a buffer, then remove it from active list.
-                if (--(track->mRetryCount) <= 0) {
-                    ALOGV("BUFFER TIMEOUT: remove(%d) from active list on thread %p", name, this);
-                    tracksToRemove->add(track);
-                    // indicate to client process that the track was disabled because of underrun;
-                    // it will then automatically call start() when data is available
-                    android_atomic_or(CBLK_DISABLED, &cblk->flags);
-                // If one track is not ready, mark the mixer also not ready if:
-                //  - the mixer was ready during previous round OR
-                //  - no other track is ready
-                } else if (mMixerStatusIgnoringFastTracks == MIXER_TRACKS_READY ||
-                                mixerStatus != MIXER_TRACKS_READY) {
-                    mixerStatus = MIXER_TRACKS_ENABLED;
-                }
-            }
-            mAudioMixer->disable(name);
-        }
-
-        }   // local variable scope to avoid goto warning
-track_is_ready: ;
-
-    }
-
-    // Push the new FastMixer state if necessary
-    bool pauseAudioWatchdog = false;
-    if (didModify) {
-        state->mFastTracksGen++;
-        // if the fast mixer was active, but now there are no fast tracks, then put it in cold idle
-        if (kUseFastMixer == FastMixer_Dynamic &&
-                state->mCommand == FastMixerState::MIX_WRITE && state->mTrackMask <= 1) {
-            state->mCommand = FastMixerState::COLD_IDLE;
-            state->mColdFutexAddr = &mFastMixerFutex;
-            state->mColdGen++;
-            mFastMixerFutex = 0;
-            if (kUseFastMixer == FastMixer_Dynamic) {
-                mNormalSink = mOutputSink;
-            }
-            // If we go into cold idle, need to wait for acknowledgement
-            // so that fast mixer stops doing I/O.
-            block = FastMixerStateQueue::BLOCK_UNTIL_ACKED;
-            pauseAudioWatchdog = true;
-        }
-        sq->end();
-    }
-    if (sq != NULL) {
-        sq->end(didModify);
-        sq->push(block);
-    }
-#ifdef AUDIO_WATCHDOG
-    if (pauseAudioWatchdog && mAudioWatchdog != 0) {
-        mAudioWatchdog->pause();
-    }
-#endif
-
-    // Now perform the deferred reset on fast tracks that have stopped
-    while (resetMask != 0) {
-        size_t i = __builtin_ctz(resetMask);
-        ALOG_ASSERT(i < count);
-        resetMask &= ~(1 << i);
-        sp<Track> t = mActiveTracks[i].promote();
-        if (t == 0) {
-            continue;
-        }
-        Track* track = t.get();
-        ALOG_ASSERT(track->isFastTrack() && track->isStopped());
-        track->reset();
-    }
-
-    // remove all the tracks that need to be...
-    count = tracksToRemove->size();
-    if (CC_UNLIKELY(count)) {
-        for (size_t i=0 ; i<count ; i++) {
-            const sp<Track>& track = tracksToRemove->itemAt(i);
-            mActiveTracks.remove(track);
-            if (track->mainBuffer() != mMixBuffer) {
-                chain = getEffectChain_l(track->sessionId());
-                if (chain != 0) {
-                    ALOGV("stopping track on chain %p for session Id: %d", chain.get(),
-                            track->sessionId());
-                    chain->decActiveTrackCnt();
-                }
-            }
-            if (track->isTerminated()) {
-                removeTrack_l(track);
-            }
-        }
-    }
-
-    // mix buffer must be cleared if all tracks are connected to an
-    // effect chain as in this case the mixer will not write to
-    // mix buffer and track effects will accumulate into it
-    if ((mixedTracks != 0 && mixedTracks == tracksWithEffect) ||
-            (mixedTracks == 0 && fastTracks > 0)) {
-        // FIXME as a performance optimization, should remember previous zero status
-        memset(mMixBuffer, 0, mNormalFrameCount * mChannelCount * sizeof(int16_t));
-    }
-
-    // if any fast tracks, then status is ready
-    mMixerStatusIgnoringFastTracks = mixerStatus;
-    if (fastTracks > 0) {
-        mixerStatus = MIXER_TRACKS_READY;
-    }
-    return mixerStatus;
-}
-
-/*
-The derived values that are cached:
- - mixBufferSize from frame count * frame size
- - activeSleepTime from activeSleepTimeUs()
- - idleSleepTime from idleSleepTimeUs()
- - standbyDelay from mActiveSleepTimeUs (DIRECT only)
- - maxPeriod from frame count and sample rate (MIXER only)
-
-The parameters that affect these derived values are:
- - frame count
- - frame size
- - sample rate
- - device type: A2DP or not
- - device latency
- - format: PCM or not
- - active sleep time
- - idle sleep time
-*/
-
-void AudioFlinger::PlaybackThread::cacheParameters_l()
-{
-    mixBufferSize = mNormalFrameCount * mFrameSize;
-    activeSleepTime = activeSleepTimeUs();
-    idleSleepTime = idleSleepTimeUs();
-}
-
-void AudioFlinger::PlaybackThread::invalidateTracks(audio_stream_type_t streamType)
-{
-    ALOGV ("MixerThread::invalidateTracks() mixer %p, streamType %d, mTracks.size %d",
-            this,  streamType, mTracks.size());
-    Mutex::Autolock _l(mLock);
-
-    size_t size = mTracks.size();
-    for (size_t i = 0; i < size; i++) {
-        sp<Track> t = mTracks[i];
-        if (t->streamType() == streamType) {
-            android_atomic_or(CBLK_INVALID, &t->mCblk->flags);
-            t->mCblk->cv.signal();
-        }
-    }
-}
-
-// getTrackName_l() must be called with ThreadBase::mLock held
-int AudioFlinger::MixerThread::getTrackName_l(audio_channel_mask_t channelMask, int sessionId)
-{
-    return mAudioMixer->getTrackName(channelMask, sessionId);
-}
-
-// deleteTrackName_l() must be called with ThreadBase::mLock held
-void AudioFlinger::MixerThread::deleteTrackName_l(int name)
-{
-    ALOGV("remove track (%d) and delete from mixer", name);
-    mAudioMixer->deleteTrackName(name);
-}
-
-// checkForNewParameters_l() must be called with ThreadBase::mLock held
-bool AudioFlinger::MixerThread::checkForNewParameters_l()
-{
-    // if !&IDLE, holds the FastMixer state to restore after new parameters processed
-    FastMixerState::Command previousCommand = FastMixerState::HOT_IDLE;
-    bool reconfig = false;
-
-    while (!mNewParameters.isEmpty()) {
-
-        if (mFastMixer != NULL) {
-            FastMixerStateQueue *sq = mFastMixer->sq();
-            FastMixerState *state = sq->begin();
-            if (!(state->mCommand & FastMixerState::IDLE)) {
-                previousCommand = state->mCommand;
-                state->mCommand = FastMixerState::HOT_IDLE;
-                sq->end();
-                sq->push(FastMixerStateQueue::BLOCK_UNTIL_ACKED);
-            } else {
-                sq->end(false /*didModify*/);
-            }
-        }
-
-        status_t status = NO_ERROR;
-        String8 keyValuePair = mNewParameters[0];
-        AudioParameter param = AudioParameter(keyValuePair);
-        int value;
-
-        if (param.getInt(String8(AudioParameter::keySamplingRate), value) == NO_ERROR) {
-            reconfig = true;
-        }
-        if (param.getInt(String8(AudioParameter::keyFormat), value) == NO_ERROR) {
-            if ((audio_format_t) value != AUDIO_FORMAT_PCM_16_BIT) {
-                status = BAD_VALUE;
-            } else {
-                reconfig = true;
-            }
-        }
-        if (param.getInt(String8(AudioParameter::keyChannels), value) == NO_ERROR) {
-            if (value != AUDIO_CHANNEL_OUT_STEREO) {
-                status = BAD_VALUE;
-            } else {
-                reconfig = true;
-            }
-        }
-        if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) {
-            // do not accept frame count changes if tracks are open as the track buffer
-            // size depends on frame count and correct behavior would not be guaranteed
-            // if frame count is changed after track creation
-            if (!mTracks.isEmpty()) {
-                status = INVALID_OPERATION;
-            } else {
-                reconfig = true;
-            }
-        }
-        if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) {
-#ifdef ADD_BATTERY_DATA
-            // when changing the audio output device, call addBatteryData to notify
-            // the change
-            if (mOutDevice != value) {
-                uint32_t params = 0;
-                // check whether speaker is on
-                if (value & AUDIO_DEVICE_OUT_SPEAKER) {
-                    params |= IMediaPlayerService::kBatteryDataSpeakerOn;
-                }
-
-                audio_devices_t deviceWithoutSpeaker
-                    = AUDIO_DEVICE_OUT_ALL & ~AUDIO_DEVICE_OUT_SPEAKER;
-                // check if any other device (except speaker) is on
-                if (value & deviceWithoutSpeaker ) {
-                    params |= IMediaPlayerService::kBatteryDataOtherAudioDeviceOn;
-                }
-
-                if (params != 0) {
-                    addBatteryData(params);
-                }
-            }
-#endif
-
-            // forward device change to effects that have requested to be
-            // aware of attached audio device.
-            mOutDevice = value;
-            for (size_t i = 0; i < mEffectChains.size(); i++) {
-                mEffectChains[i]->setDevice_l(mOutDevice);
-            }
-        }
-
-        if (status == NO_ERROR) {
-            status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                                                    keyValuePair.string());
-            if (!mStandby && status == INVALID_OPERATION) {
-                mOutput->stream->common.standby(&mOutput->stream->common);
-                mStandby = true;
-                mBytesWritten = 0;
-                status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                                                       keyValuePair.string());
-            }
-            if (status == NO_ERROR && reconfig) {
-                delete mAudioMixer;
-                // for safety in case readOutputParameters() accesses mAudioMixer (it doesn't)
-                mAudioMixer = NULL;
-                readOutputParameters();
-                mAudioMixer = new AudioMixer(mNormalFrameCount, mSampleRate);
-                for (size_t i = 0; i < mTracks.size() ; i++) {
-                    int name = getTrackName_l(mTracks[i]->mChannelMask, mTracks[i]->mSessionId);
-                    if (name < 0) {
-                        break;
-                    }
-                    mTracks[i]->mName = name;
-                    // limit track sample rate to 2 x new output sample rate
-                    if (mTracks[i]->mCblk->sampleRate > 2 * sampleRate()) {
-                        mTracks[i]->mCblk->sampleRate = 2 * sampleRate();
-                    }
-                }
-                sendIoConfigEvent_l(AudioSystem::OUTPUT_CONFIG_CHANGED);
-            }
-        }
-
-        mNewParameters.removeAt(0);
-
-        mParamStatus = status;
-        mParamCond.signal();
-        // wait for condition with time out in case the thread calling ThreadBase::setParameters()
-        // already timed out waiting for the status and will never signal the condition.
-        mWaitWorkCV.waitRelative(mLock, kSetParametersTimeoutNs);
-    }
-
-    if (!(previousCommand & FastMixerState::IDLE)) {
-        ALOG_ASSERT(mFastMixer != NULL);
-        FastMixerStateQueue *sq = mFastMixer->sq();
-        FastMixerState *state = sq->begin();
-        ALOG_ASSERT(state->mCommand == FastMixerState::HOT_IDLE);
-        state->mCommand = previousCommand;
-        sq->end();
-        sq->push(FastMixerStateQueue::BLOCK_UNTIL_PUSHED);
-    }
-
-    return reconfig;
-}
-
-void AudioFlinger::dumpTee(int fd, const sp<NBAIO_Source>& source, audio_io_handle_t id)
-{
-    NBAIO_Source *teeSource = source.get();
-    if (teeSource != NULL) {
-        char teeTime[16];
-        struct timeval tv;
-        gettimeofday(&tv, NULL);
-        struct tm tm;
-        localtime_r(&tv.tv_sec, &tm);
-        strftime(teeTime, sizeof(teeTime), "%T", &tm);
-        char teePath[64];
-        sprintf(teePath, "/data/misc/media/%s_%d.wav", teeTime, id);
-        int teeFd = open(teePath, O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR);
-        if (teeFd >= 0) {
-            char wavHeader[44];
-            memcpy(wavHeader,
-                "RIFF\0\0\0\0WAVEfmt \20\0\0\0\1\0\2\0\104\254\0\0\0\0\0\0\4\0\20\0data\0\0\0\0",
-                sizeof(wavHeader));
-            NBAIO_Format format = teeSource->format();
-            unsigned channelCount = Format_channelCount(format);
-            ALOG_ASSERT(channelCount <= FCC_2);
-            uint32_t sampleRate = Format_sampleRate(format);
-            wavHeader[22] = channelCount;       // number of channels
-            wavHeader[24] = sampleRate;         // sample rate
-            wavHeader[25] = sampleRate >> 8;
-            wavHeader[32] = channelCount * 2;   // block alignment
-            write(teeFd, wavHeader, sizeof(wavHeader));
-            size_t total = 0;
-            bool firstRead = true;
-            for (;;) {
-#define TEE_SINK_READ 1024
-                short buffer[TEE_SINK_READ * FCC_2];
-                size_t count = TEE_SINK_READ;
-                ssize_t actual = teeSource->read(buffer, count,
-                        AudioBufferProvider::kInvalidPTS);
-                bool wasFirstRead = firstRead;
-                firstRead = false;
-                if (actual <= 0) {
-                    if (actual == (ssize_t) OVERRUN && wasFirstRead) {
-                        continue;
-                    }
-                    break;
-                }
-                ALOG_ASSERT(actual <= (ssize_t)count);
-                write(teeFd, buffer, actual * channelCount * sizeof(short));
-                total += actual;
-            }
-            lseek(teeFd, (off_t) 4, SEEK_SET);
-            uint32_t temp = 44 + total * channelCount * sizeof(short) - 8;
-            write(teeFd, &temp, sizeof(temp));
-            lseek(teeFd, (off_t) 40, SEEK_SET);
-            temp =  total * channelCount * sizeof(short);
-            write(teeFd, &temp, sizeof(temp));
-            close(teeFd);
-            fdprintf(fd, "FastMixer tee copied to %s\n", teePath);
-        } else {
-            fdprintf(fd, "FastMixer unable to create tee %s: \n", strerror(errno));
-        }
-    }
-}
-
-void AudioFlinger::MixerThread::dumpInternals(int fd, const Vector<String16>& args)
-{
-    const size_t SIZE = 256;
-    char buffer[SIZE];
-    String8 result;
-
-    PlaybackThread::dumpInternals(fd, args);
-
-    snprintf(buffer, SIZE, "AudioMixer tracks: %08x\n", mAudioMixer->trackNames());
-    result.append(buffer);
-    write(fd, result.string(), result.size());
-
-    // Make a non-atomic copy of fast mixer dump state so it won't change underneath us
-    FastMixerDumpState copy = mFastMixerDumpState;
-    copy.dump(fd);
-
-#ifdef STATE_QUEUE_DUMP
-    // Similar for state queue
-    StateQueueObserverDump observerCopy = mStateQueueObserverDump;
-    observerCopy.dump(fd);
-    StateQueueMutatorDump mutatorCopy = mStateQueueMutatorDump;
-    mutatorCopy.dump(fd);
-#endif
-
-    // Write the tee output to a .wav file
-    dumpTee(fd, mTeeSource, mId);
-
-#ifdef AUDIO_WATCHDOG
-    if (mAudioWatchdog != 0) {
-        // Make a non-atomic copy of audio watchdog dump so it won't change underneath us
-        AudioWatchdogDump wdCopy = mAudioWatchdogDump;
-        wdCopy.dump(fd);
-    }
-#endif
-}
-
-uint32_t AudioFlinger::MixerThread::idleSleepTimeUs() const
-{
-    return (uint32_t)(((mNormalFrameCount * 1000) / mSampleRate) * 1000) / 2;
-}
-
-uint32_t AudioFlinger::MixerThread::suspendSleepTimeUs() const
-{
-    return (uint32_t)(((mNormalFrameCount * 1000) / mSampleRate) * 1000);
-}
-
-void AudioFlinger::MixerThread::cacheParameters_l()
-{
-    PlaybackThread::cacheParameters_l();
-
-    // FIXME: Relaxed timing because of a certain device that can't meet latency
-    // Should be reduced to 2x after the vendor fixes the driver issue
-    // increase threshold again due to low power audio mode. The way this warning
-    // threshold is calculated and its usefulness should be reconsidered anyway.
-    maxPeriod = seconds(mNormalFrameCount) / mSampleRate * 15;
-}
-
-// ----------------------------------------------------------------------------
-AudioFlinger::DirectOutputThread::DirectOutputThread(const sp<AudioFlinger>& audioFlinger,
-        AudioStreamOut* output, audio_io_handle_t id, audio_devices_t device)
-    :   PlaybackThread(audioFlinger, output, id, device, DIRECT)
-        // mLeftVolFloat, mRightVolFloat
-{
-}
-
-AudioFlinger::DirectOutputThread::~DirectOutputThread()
-{
-}
-
-AudioFlinger::PlaybackThread::mixer_state AudioFlinger::DirectOutputThread::prepareTracks_l(
-    Vector< sp<Track> > *tracksToRemove
-)
-{
-    sp<Track> trackToRemove;
-
-    mixer_state mixerStatus = MIXER_IDLE;
-
-    // find out which tracks need to be processed
-    if (mActiveTracks.size() != 0) {
-        sp<Track> t = mActiveTracks[0].promote();
-        // The track died recently
-        if (t == 0) {
-            return MIXER_IDLE;
-        }
-
-        Track* const track = t.get();
-        audio_track_cblk_t* cblk = track->cblk();
-
-        // The first time a track is added we wait
-        // for all its buffers to be filled before processing it
-        uint32_t minFrames;
-        if ((track->sharedBuffer() == 0) && !track->isStopped() && !track->isPausing()) {
-            minFrames = mNormalFrameCount;
-        } else {
-            minFrames = 1;
-        }
-        if ((track->framesReady() >= minFrames) && track->isReady() &&
-                !track->isPaused() && !track->isTerminated())
-        {
-            ALOGVV("track %d u=%08x, s=%08x [OK]", track->name(), cblk->user, cblk->server);
-
-            if (track->mFillingUpStatus == Track::FS_FILLED) {
-                track->mFillingUpStatus = Track::FS_ACTIVE;
-                mLeftVolFloat = mRightVolFloat = 0;
-                if (track->mState == TrackBase::RESUMING) {
-                    track->mState = TrackBase::ACTIVE;
-                }
-            }
-
-            // compute volume for this track
-            float left, right;
-            if (track->isMuted() || mMasterMute || track->isPausing() ||
-                mStreamTypes[track->streamType()].mute) {
-                left = right = 0;
-                if (track->isPausing()) {
-                    track->setPaused();
-                }
-            } else {
-                float typeVolume = mStreamTypes[track->streamType()].volume;
-                float v = mMasterVolume * typeVolume;
-                uint32_t vlr = cblk->getVolumeLR();
-                float v_clamped = v * (vlr & 0xFFFF);
-                if (v_clamped > MAX_GAIN) {
-                    v_clamped = MAX_GAIN;
-                }
-                left = v_clamped/MAX_GAIN;
-                v_clamped = v * (vlr >> 16);
-                if (v_clamped > MAX_GAIN) {
-                    v_clamped = MAX_GAIN;
-                }
-                right = v_clamped/MAX_GAIN;
-            }
-
-            if (left != mLeftVolFloat || right != mRightVolFloat) {
-                mLeftVolFloat = left;
-                mRightVolFloat = right;
-
-                // Convert volumes from float to 8.24
-                uint32_t vl = (uint32_t)(left * (1 << 24));
-                uint32_t vr = (uint32_t)(right * (1 << 24));
-
-                // Delegate volume control to effect in track effect chain if needed
-                // only one effect chain can be present on DirectOutputThread, so if
-                // there is one, the track is connected to it
-                if (!mEffectChains.isEmpty()) {
-                    // Do not ramp volume if volume is controlled by effect
-                    mEffectChains[0]->setVolume_l(&vl, &vr);
-                    left = (float)vl / (1 << 24);
-                    right = (float)vr / (1 << 24);
-                }
-                mOutput->stream->set_volume(mOutput->stream, left, right);
-            }
-
-            // reset retry count
-            track->mRetryCount = kMaxTrackRetriesDirect;
-            mActiveTrack = t;
-            mixerStatus = MIXER_TRACKS_READY;
-        } else {
-            // clear effect chain input buffer if an active track underruns to avoid sending
-            // previous audio buffer again to effects
-            if (!mEffectChains.isEmpty()) {
-                mEffectChains[0]->clearInputBuffer();
-            }
-
-            ALOGVV("track %d u=%08x, s=%08x [NOT READY]", track->name(), cblk->user, cblk->server);
-            if ((track->sharedBuffer() != 0) || track->isTerminated() ||
-                    track->isStopped() || track->isPaused()) {
-                // We have consumed all the buffers of this track.
-                // Remove it from the list of active tracks.
-                // TODO: implement behavior for compressed audio
-                size_t audioHALFrames = (latency_l() * mSampleRate) / 1000;
-                size_t framesWritten = mBytesWritten / mFrameSize;
-                if (mStandby || track->presentationComplete(framesWritten, audioHALFrames)) {
-                    if (track->isStopped()) {
-                        track->reset();
-                    }
-                    trackToRemove = track;
-                }
-            } else {
-                // No buffers for this track. Give it a few chances to
-                // fill a buffer, then remove it from active list.
-                if (--(track->mRetryCount) <= 0) {
-                    ALOGV("BUFFER TIMEOUT: remove(%d) from active list", track->name());
-                    trackToRemove = track;
-                } else {
-                    mixerStatus = MIXER_TRACKS_ENABLED;
-                }
-            }
-        }
-    }
-
-    // FIXME merge this with similar code for removing multiple tracks
-    // remove all the tracks that need to be...
-    if (CC_UNLIKELY(trackToRemove != 0)) {
-        tracksToRemove->add(trackToRemove);
-        mActiveTracks.remove(trackToRemove);
-        if (!mEffectChains.isEmpty()) {
-            ALOGV("stopping track on chain %p for session Id: %d", mEffectChains[0].get(),
-                    trackToRemove->sessionId());
-            mEffectChains[0]->decActiveTrackCnt();
-        }
-        if (trackToRemove->isTerminated()) {
-            removeTrack_l(trackToRemove);
-        }
-    }
-
-    return mixerStatus;
-}
-
-void AudioFlinger::DirectOutputThread::threadLoop_mix()
-{
-    AudioBufferProvider::Buffer buffer;
-    size_t frameCount = mFrameCount;
-    int8_t *curBuf = (int8_t *)mMixBuffer;
-    // output audio to hardware
-    while (frameCount) {
-        buffer.frameCount = frameCount;
-        mActiveTrack->getNextBuffer(&buffer);
-        if (CC_UNLIKELY(buffer.raw == NULL)) {
-            memset(curBuf, 0, frameCount * mFrameSize);
-            break;
-        }
-        memcpy(curBuf, buffer.raw, buffer.frameCount * mFrameSize);
-        frameCount -= buffer.frameCount;
-        curBuf += buffer.frameCount * mFrameSize;
-        mActiveTrack->releaseBuffer(&buffer);
-    }
-    sleepTime = 0;
-    standbyTime = systemTime() + standbyDelay;
-    mActiveTrack.clear();
-
-}
-
-void AudioFlinger::DirectOutputThread::threadLoop_sleepTime()
-{
-    if (sleepTime == 0) {
-        if (mMixerStatus == MIXER_TRACKS_ENABLED) {
-            sleepTime = activeSleepTime;
-        } else {
-            sleepTime = idleSleepTime;
-        }
-    } else if (mBytesWritten != 0 && audio_is_linear_pcm(mFormat)) {
-        memset(mMixBuffer, 0, mFrameCount * mFrameSize);
-        sleepTime = 0;
-    }
-}
-
-// getTrackName_l() must be called with ThreadBase::mLock held
-int AudioFlinger::DirectOutputThread::getTrackName_l(audio_channel_mask_t channelMask,
-        int sessionId)
-{
-    return 0;
-}
-
-// deleteTrackName_l() must be called with ThreadBase::mLock held
-void AudioFlinger::DirectOutputThread::deleteTrackName_l(int name)
-{
-}
-
-// checkForNewParameters_l() must be called with ThreadBase::mLock held
-bool AudioFlinger::DirectOutputThread::checkForNewParameters_l()
-{
-    bool reconfig = false;
-
-    while (!mNewParameters.isEmpty()) {
-        status_t status = NO_ERROR;
-        String8 keyValuePair = mNewParameters[0];
-        AudioParameter param = AudioParameter(keyValuePair);
-        int value;
-
-        if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) {
-            // do not accept frame count changes if tracks are open as the track buffer
-            // size depends on frame count and correct behavior would not be garantied
-            // if frame count is changed after track creation
-            if (!mTracks.isEmpty()) {
-                status = INVALID_OPERATION;
-            } else {
-                reconfig = true;
-            }
-        }
-        if (status == NO_ERROR) {
-            status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                                                    keyValuePair.string());
-            if (!mStandby && status == INVALID_OPERATION) {
-                mOutput->stream->common.standby(&mOutput->stream->common);
-                mStandby = true;
-                mBytesWritten = 0;
-                status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                                                       keyValuePair.string());
-            }
-            if (status == NO_ERROR && reconfig) {
-                readOutputParameters();
-                sendIoConfigEvent_l(AudioSystem::OUTPUT_CONFIG_CHANGED);
-            }
-        }
-
-        mNewParameters.removeAt(0);
-
-        mParamStatus = status;
-        mParamCond.signal();
-        // wait for condition with time out in case the thread calling ThreadBase::setParameters()
-        // already timed out waiting for the status and will never signal the condition.
-        mWaitWorkCV.waitRelative(mLock, kSetParametersTimeoutNs);
-    }
-    return reconfig;
-}
-
-uint32_t AudioFlinger::DirectOutputThread::activeSleepTimeUs() const
-{
-    uint32_t time;
-    if (audio_is_linear_pcm(mFormat)) {
-        time = PlaybackThread::activeSleepTimeUs();
-    } else {
-        time = 10000;
-    }
-    return time;
-}
-
-uint32_t AudioFlinger::DirectOutputThread::idleSleepTimeUs() const
-{
-    uint32_t time;
-    if (audio_is_linear_pcm(mFormat)) {
-        time = (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000) / 2;
-    } else {
-        time = 10000;
-    }
-    return time;
-}
-
-uint32_t AudioFlinger::DirectOutputThread::suspendSleepTimeUs() const
-{
-    uint32_t time;
-    if (audio_is_linear_pcm(mFormat)) {
-        time = (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000);
-    } else {
-        time = 10000;
-    }
-    return time;
-}
-
-void AudioFlinger::DirectOutputThread::cacheParameters_l()
-{
-    PlaybackThread::cacheParameters_l();
-
-    // use shorter standby delay as on normal output to release
-    // hardware resources as soon as possible
-    standbyDelay = microseconds(activeSleepTime*2);
-}
-
-// ----------------------------------------------------------------------------
-
-AudioFlinger::DuplicatingThread::DuplicatingThread(const sp<AudioFlinger>& audioFlinger,
-        AudioFlinger::MixerThread* mainThread, audio_io_handle_t id)
-    :   MixerThread(audioFlinger, mainThread->getOutput(), id, mainThread->outDevice(),
-                DUPLICATING),
-        mWaitTimeMs(UINT_MAX)
-{
-    addOutputTrack(mainThread);
-}
-
-AudioFlinger::DuplicatingThread::~DuplicatingThread()
-{
-    for (size_t i = 0; i < mOutputTracks.size(); i++) {
-        mOutputTracks[i]->destroy();
-    }
-}
-
-void AudioFlinger::DuplicatingThread::threadLoop_mix()
-{
-    // mix buffers...
-    if (outputsReady(outputTracks)) {
-        mAudioMixer->process(AudioBufferProvider::kInvalidPTS);
-    } else {
-        memset(mMixBuffer, 0, mixBufferSize);
-    }
-    sleepTime = 0;
-    writeFrames = mNormalFrameCount;
-    standbyTime = systemTime() + standbyDelay;
-}
-
-void AudioFlinger::DuplicatingThread::threadLoop_sleepTime()
-{
-    if (sleepTime == 0) {
-        if (mMixerStatus == MIXER_TRACKS_ENABLED) {
-            sleepTime = activeSleepTime;
-        } else {
-            sleepTime = idleSleepTime;
-        }
-    } else if (mBytesWritten != 0) {
-        if (mMixerStatus == MIXER_TRACKS_ENABLED) {
-            writeFrames = mNormalFrameCount;
-            memset(mMixBuffer, 0, mixBufferSize);
-        } else {
-            // flush remaining overflow buffers in output tracks
-            writeFrames = 0;
-        }
-        sleepTime = 0;
-    }
-}
-
-void AudioFlinger::DuplicatingThread::threadLoop_write()
-{
-    for (size_t i = 0; i < outputTracks.size(); i++) {
-        outputTracks[i]->write(mMixBuffer, writeFrames);
-    }
-    mBytesWritten += mixBufferSize;
-}
-
-void AudioFlinger::DuplicatingThread::threadLoop_standby()
-{
-    // DuplicatingThread implements standby by stopping all tracks
-    for (size_t i = 0; i < outputTracks.size(); i++) {
-        outputTracks[i]->stop();
-    }
-}
-
-void AudioFlinger::DuplicatingThread::saveOutputTracks()
-{
-    outputTracks = mOutputTracks;
-}
-
-void AudioFlinger::DuplicatingThread::clearOutputTracks()
-{
-    outputTracks.clear();
-}
-
-void AudioFlinger::DuplicatingThread::addOutputTrack(MixerThread *thread)
-{
-    Mutex::Autolock _l(mLock);
-    // FIXME explain this formula
-    size_t frameCount = (3 * mNormalFrameCount * mSampleRate) / thread->sampleRate();
-    OutputTrack *outputTrack = new OutputTrack(thread,
-                                            this,
-                                            mSampleRate,
-                                            mFormat,
-                                            mChannelMask,
-                                            frameCount);
-    if (outputTrack->cblk() != NULL) {
-        thread->setStreamVolume(AUDIO_STREAM_CNT, 1.0f);
-        mOutputTracks.add(outputTrack);
-        ALOGV("addOutputTrack() track %p, on thread %p", outputTrack, thread);
-        updateWaitTime_l();
-    }
-}
-
-void AudioFlinger::DuplicatingThread::removeOutputTrack(MixerThread *thread)
-{
-    Mutex::Autolock _l(mLock);
-    for (size_t i = 0; i < mOutputTracks.size(); i++) {
-        if (mOutputTracks[i]->thread() == thread) {
-            mOutputTracks[i]->destroy();
-            mOutputTracks.removeAt(i);
-            updateWaitTime_l();
-            return;
-        }
-    }
-    ALOGV("removeOutputTrack(): unkonwn thread: %p", thread);
-}
-
-// caller must hold mLock
-void AudioFlinger::DuplicatingThread::updateWaitTime_l()
-{
-    mWaitTimeMs = UINT_MAX;
-    for (size_t i = 0; i < mOutputTracks.size(); i++) {
-        sp<ThreadBase> strong = mOutputTracks[i]->thread().promote();
-        if (strong != 0) {
-            uint32_t waitTimeMs = (strong->frameCount() * 2 * 1000) / strong->sampleRate();
-            if (waitTimeMs < mWaitTimeMs) {
-                mWaitTimeMs = waitTimeMs;
-            }
-        }
-    }
-}
-
-
-bool AudioFlinger::DuplicatingThread::outputsReady(
-        const SortedVector< sp<OutputTrack> > &outputTracks)
-{
-    for (size_t i = 0; i < outputTracks.size(); i++) {
-        sp<ThreadBase> thread = outputTracks[i]->thread().promote();
-        if (thread == 0) {
-            ALOGW("DuplicatingThread::outputsReady() could not promote thread on output track %p",
-                    outputTracks[i].get());
-            return false;
-        }
-        PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
-        // see note at standby() declaration
-        if (playbackThread->standby() && !playbackThread->isSuspended()) {
-            ALOGV("DuplicatingThread output track %p on thread %p Not Ready", outputTracks[i].get(),
-                    thread.get());
-            return false;
-        }
-    }
-    return true;
-}
-
-uint32_t AudioFlinger::DuplicatingThread::activeSleepTimeUs() const
-{
-    return (mWaitTimeMs * 1000) / 2;
-}
-
-void AudioFlinger::DuplicatingThread::cacheParameters_l()
-{
-    // updateWaitTime_l() sets mWaitTimeMs, which affects activeSleepTimeUs(), so call it first
-    updateWaitTime_l();
-
-    MixerThread::cacheParameters_l();
-}
-
-// ----------------------------------------------------------------------------
-
-// TrackBase constructor must be called with AudioFlinger::mLock held
-AudioFlinger::ThreadBase::TrackBase::TrackBase(
-            ThreadBase *thread,
-            const sp<Client>& client,
-            uint32_t sampleRate,
-            audio_format_t format,
-            audio_channel_mask_t channelMask,
-            size_t frameCount,
-            const sp<IMemory>& sharedBuffer,
-            int sessionId)
-    :   RefBase(),
-        mThread(thread),
-        mClient(client),
-        mCblk(NULL),
-        // mBuffer
-        // mBufferEnd
-        mStepCount(0),
-        mState(IDLE),
-        mSampleRate(sampleRate),
-        mFormat(format),
-        mChannelMask(channelMask),
-        mChannelCount(popcount(channelMask)),
-        mFrameSize(audio_is_linear_pcm(format) ?
-                mChannelCount * audio_bytes_per_sample(format) : sizeof(int8_t)),
-        mFrameCount(frameCount),
-        mStepServerFailed(false),
-        mSessionId(sessionId)
-{
-    // client == 0 implies sharedBuffer == 0
-    ALOG_ASSERT(!(client == 0 && sharedBuffer != 0));
-
-    ALOGV_IF(sharedBuffer != 0, "sharedBuffer: %p, size: %d", sharedBuffer->pointer(),
-            sharedBuffer->size());
-
-    // ALOGD("Creating track with %d buffers @ %d bytes", bufferCount, bufferSize);
-    size_t size = sizeof(audio_track_cblk_t);
-    size_t bufferSize = frameCount * mFrameSize;
-    if (sharedBuffer == 0) {
-        size += bufferSize;
-    }
-
-    if (client != 0) {
-        mCblkMemory = client->heap()->allocate(size);
-        if (mCblkMemory != 0) {
-            mCblk = static_cast<audio_track_cblk_t *>(mCblkMemory->pointer());
-            // can't assume mCblk != NULL
-        } else {
-            ALOGE("not enough memory for AudioTrack size=%u", size);
-            client->heap()->dump("AudioTrack");
-            return;
-        }
-    } else {
-        mCblk = (audio_track_cblk_t *)(new uint8_t[size]);
-        // assume mCblk != NULL
-    }
-
-    // construct the shared structure in-place.
-    if (mCblk != NULL) {
-        new(mCblk) audio_track_cblk_t();
-        // clear all buffers
-        mCblk->frameCount_ = frameCount;
-        mCblk->sampleRate = sampleRate;
-// uncomment the following lines to quickly test 32-bit wraparound
-//      mCblk->user = 0xffff0000;
-//      mCblk->server = 0xffff0000;
-//      mCblk->userBase = 0xffff0000;
-//      mCblk->serverBase = 0xffff0000;
-        if (sharedBuffer == 0) {
-            mBuffer = (char*)mCblk + sizeof(audio_track_cblk_t);
-            memset(mBuffer, 0, bufferSize);
-            // Force underrun condition to avoid false underrun callback until first data is
-            // written to buffer (other flags are cleared)
-            mCblk->flags = CBLK_UNDERRUN;
-        } else {
-            mBuffer = sharedBuffer->pointer();
-        }
-        mBufferEnd = (uint8_t *)mBuffer + bufferSize;
-    }
-}
-
-AudioFlinger::ThreadBase::TrackBase::~TrackBase()
-{
-    if (mCblk != NULL) {
-        if (mClient == 0) {
-            delete mCblk;
-        } else {
-            mCblk->~audio_track_cblk_t();   // destroy our shared-structure.
-        }
-    }
-    mCblkMemory.clear();    // free the shared memory before releasing the heap it belongs to
-    if (mClient != 0) {
-        // Client destructor must run with AudioFlinger mutex locked
-        Mutex::Autolock _l(mClient->audioFlinger()->mLock);
-        // If the client's reference count drops to zero, the associated destructor
-        // must run with AudioFlinger lock held. Thus the explicit clear() rather than
-        // relying on the automatic clear() at end of scope.
-        mClient.clear();
-    }
-}
-
-// AudioBufferProvider interface
-// getNextBuffer() = 0;
-// This implementation of releaseBuffer() is used by Track and RecordTrack, but not TimedTrack
-void AudioFlinger::ThreadBase::TrackBase::releaseBuffer(AudioBufferProvider::Buffer* buffer)
-{
-    buffer->raw = NULL;
-    mStepCount = buffer->frameCount;
-    // FIXME See note at getNextBuffer()
-    (void) step();      // ignore return value of step()
-    buffer->frameCount = 0;
-}
-
-bool AudioFlinger::ThreadBase::TrackBase::step() {
-    bool result;
-    audio_track_cblk_t* cblk = this->cblk();
-
-    result = cblk->stepServer(mStepCount, mFrameCount, isOut());
-    if (!result) {
-        ALOGV("stepServer failed acquiring cblk mutex");
-        mStepServerFailed = true;
-    }
-    return result;
-}
-
-void AudioFlinger::ThreadBase::TrackBase::reset() {
-    audio_track_cblk_t* cblk = this->cblk();
-
-    cblk->user = 0;
-    cblk->server = 0;
-    cblk->userBase = 0;
-    cblk->serverBase = 0;
-    mStepServerFailed = false;
-    ALOGV("TrackBase::reset");
-}
-
-uint32_t AudioFlinger::ThreadBase::TrackBase::sampleRate() const {
-    return mCblk->sampleRate;
-}
-
-void* AudioFlinger::ThreadBase::TrackBase::getBuffer(uint32_t offset, uint32_t frames) const {
-    audio_track_cblk_t* cblk = this->cblk();
-    int8_t *bufferStart = (int8_t *)mBuffer + (offset-cblk->serverBase) * mFrameSize;
-    int8_t *bufferEnd = bufferStart + frames * mFrameSize;
-
-    // Check validity of returned pointer in case the track control block would have been corrupted.
-    ALOG_ASSERT(!(bufferStart < mBuffer || bufferStart > bufferEnd || bufferEnd > mBufferEnd),
-            "TrackBase::getBuffer buffer out of range:\n"
-                "    start: %p, end %p , mBuffer %p mBufferEnd %p\n"
-                "    server %u, serverBase %u, user %u, userBase %u, frameSize %u",
-                bufferStart, bufferEnd, mBuffer, mBufferEnd,
-                cblk->server, cblk->serverBase, cblk->user, cblk->userBase, mFrameSize);
-
-    return bufferStart;
-}
-
-status_t AudioFlinger::ThreadBase::TrackBase::setSyncEvent(const sp<SyncEvent>& event)
-{
-    mSyncEvents.add(event);
-    return NO_ERROR;
-}
-
-// ----------------------------------------------------------------------------
-
-// Track constructor must be called with AudioFlinger::mLock and ThreadBase::mLock held
-AudioFlinger::PlaybackThread::Track::Track(
-            PlaybackThread *thread,
-            const sp<Client>& client,
-            audio_stream_type_t streamType,
-            uint32_t sampleRate,
-            audio_format_t format,
-            audio_channel_mask_t channelMask,
-            size_t frameCount,
-            const sp<IMemory>& sharedBuffer,
-            int sessionId,
-            IAudioFlinger::track_flags_t flags)
-    :   TrackBase(thread, client, sampleRate, format, channelMask, frameCount, sharedBuffer,
-            sessionId),
-    mMute(false),
-    mFillingUpStatus(FS_INVALID),
-    // mRetryCount initialized later when needed
-    mSharedBuffer(sharedBuffer),
-    mStreamType(streamType),
-    mName(-1),  // see note below
-    mMainBuffer(thread->mixBuffer()),
-    mAuxBuffer(NULL),
-    mAuxEffectId(0), mHasVolumeController(false),
-    mPresentationCompleteFrames(0),
-    mFlags(flags),
-    mFastIndex(-1),
-    mUnderrunCount(0),
-    mCachedVolume(1.0)
-{
-    if (mCblk != NULL) {
-        // to avoid leaking a track name, do not allocate one unless there is an mCblk
-        mName = thread->getTrackName_l(channelMask, sessionId);
-        mCblk->mName = mName;
-        if (mName < 0) {
-            ALOGE("no more track names available");
-            return;
-        }
-        // only allocate a fast track index if we were able to allocate a normal track name
-        if (flags & IAudioFlinger::TRACK_FAST) {
-            ALOG_ASSERT(thread->mFastTrackAvailMask != 0);
-            int i = __builtin_ctz(thread->mFastTrackAvailMask);
-            ALOG_ASSERT(0 < i && i < (int)FastMixerState::kMaxFastTracks);
-            // FIXME This is too eager.  We allocate a fast track index before the
-            //       fast track becomes active.  Since fast tracks are a scarce resource,
-            //       this means we are potentially denying other more important fast tracks from
-            //       being created.  It would be better to allocate the index dynamically.
-            mFastIndex = i;
-            mCblk->mName = i;
-            // Read the initial underruns because this field is never cleared by the fast mixer
-            mObservedUnderruns = thread->getFastTrackUnderruns(i);
-            thread->mFastTrackAvailMask &= ~(1 << i);
-        }
-    }
-    ALOGV("Track constructor name %d, calling pid %d", mName,
-            IPCThreadState::self()->getCallingPid());
-}
-
-AudioFlinger::PlaybackThread::Track::~Track()
-{
-    ALOGV("PlaybackThread::Track destructor");
-}
-
-void AudioFlinger::PlaybackThread::Track::destroy()
-{
-    // NOTE: destroyTrack_l() can remove a strong reference to this Track
-    // by removing it from mTracks vector, so there is a risk that this Tracks's
-    // destructor is called. As the destructor needs to lock mLock,
-    // we must acquire a strong reference on this Track before locking mLock
-    // here so that the destructor is called only when exiting this function.
-    // On the other hand, as long as Track::destroy() is only called by
-    // TrackHandle destructor, the TrackHandle still holds a strong ref on
-    // this Track with its member mTrack.
-    sp<Track> keep(this);
-    { // scope for mLock
-        sp<ThreadBase> thread = mThread.promote();
-        if (thread != 0) {
-            if (!isOutputTrack()) {
-                if (mState == ACTIVE || mState == RESUMING) {
-                    AudioSystem::stopOutput(thread->id(), mStreamType, mSessionId);
-
-#ifdef ADD_BATTERY_DATA
-                    // to track the speaker usage
-                    addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop);
-#endif
-                }
-                AudioSystem::releaseOutput(thread->id());
-            }
-            Mutex::Autolock _l(thread->mLock);
-            PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
-            playbackThread->destroyTrack_l(this);
-        }
-    }
-}
-
-/*static*/ void AudioFlinger::PlaybackThread::Track::appendDumpHeader(String8& result)
-{
-    result.append("   Name Client Type Fmt Chn mask   Session StpCnt fCount S M F SRate  "
-                  "L dB  R dB    Server      User     Main buf    Aux Buf  Flags Underruns\n");
-}
-
-void AudioFlinger::PlaybackThread::Track::dump(char* buffer, size_t size)
-{
-    uint32_t vlr = mCblk->getVolumeLR();
-    if (isFastTrack()) {
-        sprintf(buffer, "   F %2d", mFastIndex);
-    } else {
-        sprintf(buffer, "   %4d", mName - AudioMixer::TRACK0);
-    }
-    track_state state = mState;
-    char stateChar;
-    switch (state) {
-    case IDLE:
-        stateChar = 'I';
-        break;
-    case TERMINATED:
-        stateChar = 'T';
-        break;
-    case STOPPING_1:
-        stateChar = 's';
-        break;
-    case STOPPING_2:
-        stateChar = '5';
-        break;
-    case STOPPED:
-        stateChar = 'S';
-        break;
-    case RESUMING:
-        stateChar = 'R';
-        break;
-    case ACTIVE:
-        stateChar = 'A';
-        break;
-    case PAUSING:
-        stateChar = 'p';
-        break;
-    case PAUSED:
-        stateChar = 'P';
-        break;
-    case FLUSHED:
-        stateChar = 'F';
-        break;
-    default:
-        stateChar = '?';
-        break;
-    }
-    char nowInUnderrun;
-    switch (mObservedUnderruns.mBitFields.mMostRecent) {
-    case UNDERRUN_FULL:
-        nowInUnderrun = ' ';
-        break;
-    case UNDERRUN_PARTIAL:
-        nowInUnderrun = '<';
-        break;
-    case UNDERRUN_EMPTY:
-        nowInUnderrun = '*';
-        break;
-    default:
-        nowInUnderrun = '?';
-        break;
-    }
-    snprintf(&buffer[7], size-7, " %6d %4u %3u 0x%08x %7u %6u %6u %1c %1d %1d %5u %5.2g %5.2g  "
-            "0x%08x 0x%08x 0x%08x 0x%08x %#5x %9u%c\n",
-            (mClient == 0) ? getpid_cached : mClient->pid(),
-            mStreamType,
-            mFormat,
-            mChannelMask,
-            mSessionId,
-            mStepCount,
-            mFrameCount,
-            stateChar,
-            mMute,
-            mFillingUpStatus,
-            mCblk->sampleRate,
-            20.0 * log10((vlr & 0xFFFF) / 4096.0),
-            20.0 * log10((vlr >> 16) / 4096.0),
-            mCblk->server,
-            mCblk->user,
-            (int)mMainBuffer,
-            (int)mAuxBuffer,
-            mCblk->flags,
-            mUnderrunCount,
-            nowInUnderrun);
-}
-
-// AudioBufferProvider interface
-status_t AudioFlinger::PlaybackThread::Track::getNextBuffer(
-        AudioBufferProvider::Buffer* buffer, int64_t pts)
-{
-    audio_track_cblk_t* cblk = this->cblk();
-    uint32_t framesReady;
-    uint32_t framesReq = buffer->frameCount;
-
-    // Check if last stepServer failed, try to step now
-    if (mStepServerFailed) {
-        // FIXME When called by fast mixer, this takes a mutex with tryLock().
-        //       Since the fast mixer is higher priority than client callback thread,
-        //       it does not result in priority inversion for client.
-        //       But a non-blocking solution would be preferable to avoid
-        //       fast mixer being unable to tryLock(), and
-        //       to avoid the extra context switches if the client wakes up,
-        //       discovers the mutex is locked, then has to wait for fast mixer to unlock.
-        if (!step())  goto getNextBuffer_exit;
-        ALOGV("stepServer recovered");
-        mStepServerFailed = false;
-    }
-
-    // FIXME Same as above
-    framesReady = cblk->framesReadyOut();
-
-    if (CC_LIKELY(framesReady)) {
-        uint32_t s = cblk->server;
-        uint32_t bufferEnd = cblk->serverBase + mFrameCount;
-
-        bufferEnd = (cblk->loopEnd < bufferEnd) ? cblk->loopEnd : bufferEnd;
-        if (framesReq > framesReady) {
-            framesReq = framesReady;
-        }
-        if (framesReq > bufferEnd - s) {
-            framesReq = bufferEnd - s;
-        }
-
-        buffer->raw = getBuffer(s, framesReq);
-        buffer->frameCount = framesReq;
-        return NO_ERROR;
-    }
-
-getNextBuffer_exit:
-    buffer->raw = NULL;
-    buffer->frameCount = 0;
-    ALOGV("getNextBuffer() no more data for track %d on thread %p", mName, mThread.unsafe_get());
-    return NOT_ENOUGH_DATA;
-}
-
-// Note that framesReady() takes a mutex on the control block using tryLock().
-// This could result in priority inversion if framesReady() is called by the normal mixer,
-// as the normal mixer thread runs at lower
-// priority than the client's callback thread:  there is a short window within framesReady()
-// during which the normal mixer could be preempted, and the client callback would block.
-// Another problem can occur if framesReady() is called by the fast mixer:
-// the tryLock() could block for up to 1 ms, and a sequence of these could delay fast mixer.
-// FIXME Replace AudioTrackShared control block implementation by a non-blocking FIFO queue.
-size_t AudioFlinger::PlaybackThread::Track::framesReady() const {
-    return mCblk->framesReadyOut();
-}
-
-// Don't call for fast tracks; the framesReady() could result in priority inversion
-bool AudioFlinger::PlaybackThread::Track::isReady() const {
-    if (mFillingUpStatus != FS_FILLING || isStopped() || isPausing()) {
-        return true;
-    }
-
-    if (framesReady() >= mFrameCount ||
-            (mCblk->flags & CBLK_FORCEREADY)) {
-        mFillingUpStatus = FS_FILLED;
-        android_atomic_and(~CBLK_FORCEREADY, &mCblk->flags);
-        return true;
-    }
-    return false;
-}
-
-status_t AudioFlinger::PlaybackThread::Track::start(AudioSystem::sync_event_t event,
-                                                    int triggerSession)
-{
-    status_t status = NO_ERROR;
-    ALOGV("start(%d), calling pid %d session %d",
-            mName, IPCThreadState::self()->getCallingPid(), mSessionId);
-
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread != 0) {
-        Mutex::Autolock _l(thread->mLock);
-        track_state state = mState;
-        // here the track could be either new, or restarted
-        // in both cases "unstop" the track
-        if (mState == PAUSED) {
-            mState = TrackBase::RESUMING;
-            ALOGV("PAUSED => RESUMING (%d) on thread %p", mName, this);
-        } else {
-            mState = TrackBase::ACTIVE;
-            ALOGV("? => ACTIVE (%d) on thread %p", mName, this);
-        }
-
-        if (!isOutputTrack() && state != ACTIVE && state != RESUMING) {
-            thread->mLock.unlock();
-            status = AudioSystem::startOutput(thread->id(), mStreamType, mSessionId);
-            thread->mLock.lock();
-
-#ifdef ADD_BATTERY_DATA
-            // to track the speaker usage
-            if (status == NO_ERROR) {
-                addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStart);
-            }
-#endif
-        }
-        if (status == NO_ERROR) {
-            PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
-            playbackThread->addTrack_l(this);
-        } else {
-            mState = state;
-            triggerEvents(AudioSystem::SYNC_EVENT_PRESENTATION_COMPLETE);
-        }
-    } else {
-        status = BAD_VALUE;
-    }
-    return status;
-}
-
-void AudioFlinger::PlaybackThread::Track::stop()
-{
-    ALOGV("stop(%d), calling pid %d", mName, IPCThreadState::self()->getCallingPid());
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread != 0) {
-        Mutex::Autolock _l(thread->mLock);
-        track_state state = mState;
-        if (state == RESUMING || state == ACTIVE || state == PAUSING || state == PAUSED) {
-            // If the track is not active (PAUSED and buffers full), flush buffers
-            PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
-            if (playbackThread->mActiveTracks.indexOf(this) < 0) {
-                reset();
-                mState = STOPPED;
-            } else if (!isFastTrack()) {
-                mState = STOPPED;
-            } else {
-                // prepareTracks_l() will set state to STOPPING_2 after next underrun,
-                // and then to STOPPED and reset() when presentation is complete
-                mState = STOPPING_1;
-            }
-            ALOGV("not stopping/stopped => stopping/stopped (%d) on thread %p", mName,
-                    playbackThread);
-        }
-        if (!isOutputTrack() && (state == ACTIVE || state == RESUMING)) {
-            thread->mLock.unlock();
-            AudioSystem::stopOutput(thread->id(), mStreamType, mSessionId);
-            thread->mLock.lock();
-
-#ifdef ADD_BATTERY_DATA
-            // to track the speaker usage
-            addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop);
-#endif
-        }
-    }
-}
-
-void AudioFlinger::PlaybackThread::Track::pause()
-{
-    ALOGV("pause(%d), calling pid %d", mName, IPCThreadState::self()->getCallingPid());
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread != 0) {
-        Mutex::Autolock _l(thread->mLock);
-        if (mState == ACTIVE || mState == RESUMING) {
-            mState = PAUSING;
-            ALOGV("ACTIVE/RESUMING => PAUSING (%d) on thread %p", mName, thread.get());
-            if (!isOutputTrack()) {
-                thread->mLock.unlock();
-                AudioSystem::stopOutput(thread->id(), mStreamType, mSessionId);
-                thread->mLock.lock();
-
-#ifdef ADD_BATTERY_DATA
-                // to track the speaker usage
-                addBatteryData(IMediaPlayerService::kBatteryDataAudioFlingerStop);
-#endif
-            }
-        }
-    }
-}
-
-void AudioFlinger::PlaybackThread::Track::flush()
-{
-    ALOGV("flush(%d)", mName);
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread != 0) {
-        Mutex::Autolock _l(thread->mLock);
-        if (mState != STOPPING_1 && mState != STOPPING_2 && mState != STOPPED && mState != PAUSED &&
-                mState != PAUSING && mState != IDLE && mState != FLUSHED) {
-            return;
-        }
-        // No point remaining in PAUSED state after a flush => go to
-        // FLUSHED state
-        mState = FLUSHED;
-        // do not reset the track if it is still in the process of being stopped or paused.
-        // this will be done by prepareTracks_l() when the track is stopped.
-        // prepareTracks_l() will see mState == FLUSHED, then
-        // remove from active track list, reset(), and trigger presentation complete
-        PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
-        if (playbackThread->mActiveTracks.indexOf(this) < 0) {
-            reset();
-        }
-    }
-}
-
-void AudioFlinger::PlaybackThread::Track::reset()
-{
-    // Do not reset twice to avoid discarding data written just after a flush and before
-    // the audioflinger thread detects the track is stopped.
-    if (!mResetDone) {
-        TrackBase::reset();
-        // Force underrun condition to avoid false underrun callback until first data is
-        // written to buffer
-        android_atomic_and(~CBLK_FORCEREADY, &mCblk->flags);
-        android_atomic_or(CBLK_UNDERRUN, &mCblk->flags);
-        mFillingUpStatus = FS_FILLING;
-        mResetDone = true;
-        if (mState == FLUSHED) {
-            mState = IDLE;
-        }
-    }
-}
-
-void AudioFlinger::PlaybackThread::Track::mute(bool muted)
-{
-    mMute = muted;
-}
-
-status_t AudioFlinger::PlaybackThread::Track::attachAuxEffect(int EffectId)
-{
-    status_t status = DEAD_OBJECT;
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread != 0) {
-        PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
-        sp<AudioFlinger> af = mClient->audioFlinger();
-
-        Mutex::Autolock _l(af->mLock);
-
-        sp<PlaybackThread> srcThread = af->getEffectThread_l(AUDIO_SESSION_OUTPUT_MIX, EffectId);
-
-        if (EffectId != 0 && srcThread != 0 && playbackThread != srcThread.get()) {
-            Mutex::Autolock _dl(playbackThread->mLock);
-            Mutex::Autolock _sl(srcThread->mLock);
-            sp<EffectChain> chain = srcThread->getEffectChain_l(AUDIO_SESSION_OUTPUT_MIX);
-            if (chain == 0) {
-                return INVALID_OPERATION;
-            }
-
-            sp<EffectModule> effect = chain->getEffectFromId_l(EffectId);
-            if (effect == 0) {
-                return INVALID_OPERATION;
-            }
-            srcThread->removeEffect_l(effect);
-            playbackThread->addEffect_l(effect);
-            // removeEffect_l() has stopped the effect if it was active so it must be restarted
-            if (effect->state() == EffectModule::ACTIVE ||
-                    effect->state() == EffectModule::STOPPING) {
-                effect->start();
-            }
-
-            sp<EffectChain> dstChain = effect->chain().promote();
-            if (dstChain == 0) {
-                srcThread->addEffect_l(effect);
-                return INVALID_OPERATION;
-            }
-            AudioSystem::unregisterEffect(effect->id());
-            AudioSystem::registerEffect(&effect->desc(),
-                                        srcThread->id(),
-                                        dstChain->strategy(),
-                                        AUDIO_SESSION_OUTPUT_MIX,
-                                        effect->id());
-        }
-        status = playbackThread->attachAuxEffect(this, EffectId);
-    }
-    return status;
-}
-
-void AudioFlinger::PlaybackThread::Track::setAuxBuffer(int EffectId, int32_t *buffer)
-{
-    mAuxEffectId = EffectId;
-    mAuxBuffer = buffer;
-}
-
-bool AudioFlinger::PlaybackThread::Track::presentationComplete(size_t framesWritten,
-                                                         size_t audioHalFrames)
-{
-    // a track is considered presented when the total number of frames written to audio HAL
-    // corresponds to the number of frames written when presentationComplete() is called for the
-    // first time (mPresentationCompleteFrames == 0) plus the buffer filling status at that time.
-    if (mPresentationCompleteFrames == 0) {
-        mPresentationCompleteFrames = framesWritten + audioHalFrames;
-        ALOGV("presentationComplete() reset: mPresentationCompleteFrames %d audioHalFrames %d",
-                  mPresentationCompleteFrames, audioHalFrames);
-    }
-    if (framesWritten >= mPresentationCompleteFrames) {
-        ALOGV("presentationComplete() session %d complete: framesWritten %d",
-                  mSessionId, framesWritten);
-        triggerEvents(AudioSystem::SYNC_EVENT_PRESENTATION_COMPLETE);
-        return true;
-    }
-    return false;
-}
-
-void AudioFlinger::PlaybackThread::Track::triggerEvents(AudioSystem::sync_event_t type)
-{
-    for (int i = 0; i < (int)mSyncEvents.size(); i++) {
-        if (mSyncEvents[i]->type() == type) {
-            mSyncEvents[i]->trigger();
-            mSyncEvents.removeAt(i);
-            i--;
-        }
-    }
-}
-
-// implement VolumeBufferProvider interface
-
-uint32_t AudioFlinger::PlaybackThread::Track::getVolumeLR()
-{
-    // called by FastMixer, so not allowed to take any locks, block, or do I/O including logs
-    ALOG_ASSERT(isFastTrack() && (mCblk != NULL));
-    uint32_t vlr = mCblk->getVolumeLR();
-    uint32_t vl = vlr & 0xFFFF;
-    uint32_t vr = vlr >> 16;
-    // track volumes come from shared memory, so can't be trusted and must be clamped
-    if (vl > MAX_GAIN_INT) {
-        vl = MAX_GAIN_INT;
-    }
-    if (vr > MAX_GAIN_INT) {
-        vr = MAX_GAIN_INT;
-    }
-    // now apply the cached master volume and stream type volume;
-    // this is trusted but lacks any synchronization or barrier so may be stale
-    float v = mCachedVolume;
-    vl *= v;
-    vr *= v;
-    // re-combine into U4.16
-    vlr = (vr << 16) | (vl & 0xFFFF);
-    // FIXME look at mute, pause, and stop flags
-    return vlr;
-}
-
-status_t AudioFlinger::PlaybackThread::Track::setSyncEvent(const sp<SyncEvent>& event)
-{
-    if (mState == TERMINATED || mState == PAUSED ||
-            ((framesReady() == 0) && ((mSharedBuffer != 0) ||
-                                      (mState == STOPPED)))) {
-        ALOGW("Track::setSyncEvent() in invalid state %d on session %d %s mode, framesReady %d ",
-              mState, mSessionId, (mSharedBuffer != 0) ? "static" : "stream", framesReady());
-        event->cancel();
-        return INVALID_OPERATION;
-    }
-    (void) TrackBase::setSyncEvent(event);
-    return NO_ERROR;
-}
-
-bool AudioFlinger::PlaybackThread::Track::isOut() const
-{
-    return true;
-}
-
-// timed audio tracks
-
-sp<AudioFlinger::PlaybackThread::TimedTrack>
-AudioFlinger::PlaybackThread::TimedTrack::create(
-            PlaybackThread *thread,
-            const sp<Client>& client,
-            audio_stream_type_t streamType,
-            uint32_t sampleRate,
-            audio_format_t format,
-            audio_channel_mask_t channelMask,
-            size_t frameCount,
-            const sp<IMemory>& sharedBuffer,
-            int sessionId) {
-    if (!client->reserveTimedTrack())
-        return 0;
-
-    return new TimedTrack(
-        thread, client, streamType, sampleRate, format, channelMask, frameCount,
-        sharedBuffer, sessionId);
-}
-
-AudioFlinger::PlaybackThread::TimedTrack::TimedTrack(
-            PlaybackThread *thread,
-            const sp<Client>& client,
-            audio_stream_type_t streamType,
-            uint32_t sampleRate,
-            audio_format_t format,
-            audio_channel_mask_t channelMask,
-            size_t frameCount,
-            const sp<IMemory>& sharedBuffer,
-            int sessionId)
-    : Track(thread, client, streamType, sampleRate, format, channelMask,
-            frameCount, sharedBuffer, sessionId, IAudioFlinger::TRACK_TIMED),
-      mQueueHeadInFlight(false),
-      mTrimQueueHeadOnRelease(false),
-      mFramesPendingInQueue(0),
-      mTimedSilenceBuffer(NULL),
-      mTimedSilenceBufferSize(0),
-      mTimedAudioOutputOnTime(false),
-      mMediaTimeTransformValid(false)
-{
-    LocalClock lc;
-    mLocalTimeFreq = lc.getLocalFreq();
-
-    mLocalTimeToSampleTransform.a_zero = 0;
-    mLocalTimeToSampleTransform.b_zero = 0;
-    mLocalTimeToSampleTransform.a_to_b_numer = sampleRate;
-    mLocalTimeToSampleTransform.a_to_b_denom = mLocalTimeFreq;
-    LinearTransform::reduce(&mLocalTimeToSampleTransform.a_to_b_numer,
-                            &mLocalTimeToSampleTransform.a_to_b_denom);
-
-    mMediaTimeToSampleTransform.a_zero = 0;
-    mMediaTimeToSampleTransform.b_zero = 0;
-    mMediaTimeToSampleTransform.a_to_b_numer = sampleRate;
-    mMediaTimeToSampleTransform.a_to_b_denom = 1000000;
-    LinearTransform::reduce(&mMediaTimeToSampleTransform.a_to_b_numer,
-                            &mMediaTimeToSampleTransform.a_to_b_denom);
-}
-
-AudioFlinger::PlaybackThread::TimedTrack::~TimedTrack() {
-    mClient->releaseTimedTrack();
-    delete [] mTimedSilenceBuffer;
-}
-
-status_t AudioFlinger::PlaybackThread::TimedTrack::allocateTimedBuffer(
-    size_t size, sp<IMemory>* buffer) {
-
-    Mutex::Autolock _l(mTimedBufferQueueLock);
-
-    trimTimedBufferQueue_l();
-
-    // lazily initialize the shared memory heap for timed buffers
-    if (mTimedMemoryDealer == NULL) {
-        const int kTimedBufferHeapSize = 512 << 10;
-
-        mTimedMemoryDealer = new MemoryDealer(kTimedBufferHeapSize,
-                                              "AudioFlingerTimed");
-        if (mTimedMemoryDealer == NULL)
-            return NO_MEMORY;
-    }
-
-    sp<IMemory> newBuffer = mTimedMemoryDealer->allocate(size);
-    if (newBuffer == NULL) {
-        newBuffer = mTimedMemoryDealer->allocate(size);
-        if (newBuffer == NULL)
-            return NO_MEMORY;
-    }
-
-    *buffer = newBuffer;
-    return NO_ERROR;
-}
-
-// caller must hold mTimedBufferQueueLock
-void AudioFlinger::PlaybackThread::TimedTrack::trimTimedBufferQueue_l() {
-    int64_t mediaTimeNow;
-    {
-        Mutex::Autolock mttLock(mMediaTimeTransformLock);
-        if (!mMediaTimeTransformValid)
-            return;
-
-        int64_t targetTimeNow;
-        status_t res = (mMediaTimeTransformTarget == TimedAudioTrack::COMMON_TIME)
-            ? mCCHelper.getCommonTime(&targetTimeNow)
-            : mCCHelper.getLocalTime(&targetTimeNow);
-
-        if (OK != res)
-            return;
-
-        if (!mMediaTimeTransform.doReverseTransform(targetTimeNow,
-                                                    &mediaTimeNow)) {
-            return;
-        }
-    }
-
-    size_t trimEnd;
-    for (trimEnd = 0; trimEnd < mTimedBufferQueue.size(); trimEnd++) {
-        int64_t bufEnd;
-
-        if ((trimEnd + 1) < mTimedBufferQueue.size()) {
-            // We have a next buffer.  Just use its PTS as the PTS of the frame
-            // following the last frame in this buffer.  If the stream is sparse
-            // (ie, there are deliberate gaps left in the stream which should be
-            // filled with silence by the TimedAudioTrack), then this can result
-            // in one extra buffer being left un-trimmed when it could have
-            // been.  In general, this is not typical, and we would rather
-            // optimized away the TS calculation below for the more common case
-            // where PTSes are contiguous.
-            bufEnd = mTimedBufferQueue[trimEnd + 1].pts();
-        } else {
-            // We have no next buffer.  Compute the PTS of the frame following
-            // the last frame in this buffer by computing the duration of of
-            // this frame in media time units and adding it to the PTS of the
-            // buffer.
-            int64_t frameCount = mTimedBufferQueue[trimEnd].buffer()->size()
-                               / mFrameSize;
-
-            if (!mMediaTimeToSampleTransform.doReverseTransform(frameCount,
-                                                                &bufEnd)) {
-                ALOGE("Failed to convert frame count of %lld to media time"
-                      " duration" " (scale factor %d/%u) in %s",
-                      frameCount,
-                      mMediaTimeToSampleTransform.a_to_b_numer,
-                      mMediaTimeToSampleTransform.a_to_b_denom,
-                      __PRETTY_FUNCTION__);
-                break;
-            }
-            bufEnd += mTimedBufferQueue[trimEnd].pts();
-        }
-
-        if (bufEnd > mediaTimeNow)
-            break;
-
-        // Is the buffer we want to use in the middle of a mix operation right
-        // now?  If so, don't actually trim it.  Just wait for the releaseBuffer
-        // from the mixer which should be coming back shortly.
-        if (!trimEnd && mQueueHeadInFlight) {
-            mTrimQueueHeadOnRelease = true;
-        }
-    }
-
-    size_t trimStart = mTrimQueueHeadOnRelease ? 1 : 0;
-    if (trimStart < trimEnd) {
-        // Update the bookkeeping for framesReady()
-        for (size_t i = trimStart; i < trimEnd; ++i) {
-            updateFramesPendingAfterTrim_l(mTimedBufferQueue[i], "trim");
-        }
-
-        // Now actually remove the buffers from the queue.
-        mTimedBufferQueue.removeItemsAt(trimStart, trimEnd);
-    }
-}
-
-void AudioFlinger::PlaybackThread::TimedTrack::trimTimedBufferQueueHead_l(
-        const char* logTag) {
-    ALOG_ASSERT(mTimedBufferQueue.size() > 0,
-                "%s called (reason \"%s\"), but timed buffer queue has no"
-                " elements to trim.", __FUNCTION__, logTag);
-
-    updateFramesPendingAfterTrim_l(mTimedBufferQueue[0], logTag);
-    mTimedBufferQueue.removeAt(0);
-}
-
-void AudioFlinger::PlaybackThread::TimedTrack::updateFramesPendingAfterTrim_l(
-        const TimedBuffer& buf,
-        const char* logTag) {
-    uint32_t bufBytes        = buf.buffer()->size();
-    uint32_t consumedAlready = buf.position();
-
-    ALOG_ASSERT(consumedAlready <= bufBytes,
-                "Bad bookkeeping while updating frames pending.  Timed buffer is"
-                " only %u bytes long, but claims to have consumed %u"
-                " bytes.  (update reason: \"%s\")",
-                bufBytes, consumedAlready, logTag);
-
-    uint32_t bufFrames = (bufBytes - consumedAlready) / mFrameSize;
-    ALOG_ASSERT(mFramesPendingInQueue >= bufFrames,
-                "Bad bookkeeping while updating frames pending.  Should have at"
-                " least %u queued frames, but we think we have only %u.  (update"
-                " reason: \"%s\")",
-                bufFrames, mFramesPendingInQueue, logTag);
-
-    mFramesPendingInQueue -= bufFrames;
-}
-
-status_t AudioFlinger::PlaybackThread::TimedTrack::queueTimedBuffer(
-    const sp<IMemory>& buffer, int64_t pts) {
-
-    {
-        Mutex::Autolock mttLock(mMediaTimeTransformLock);
-        if (!mMediaTimeTransformValid)
-            return INVALID_OPERATION;
-    }
-
-    Mutex::Autolock _l(mTimedBufferQueueLock);
-
-    uint32_t bufFrames = buffer->size() / mFrameSize;
-    mFramesPendingInQueue += bufFrames;
-    mTimedBufferQueue.add(TimedBuffer(buffer, pts));
-
-    return NO_ERROR;
-}
-
-status_t AudioFlinger::PlaybackThread::TimedTrack::setMediaTimeTransform(
-    const LinearTransform& xform, TimedAudioTrack::TargetTimeline target) {
-
-    ALOGVV("setMediaTimeTransform az=%lld bz=%lld n=%d d=%u tgt=%d",
-           xform.a_zero, xform.b_zero, xform.a_to_b_numer, xform.a_to_b_denom,
-           target);
-
-    if (!(target == TimedAudioTrack::LOCAL_TIME ||
-          target == TimedAudioTrack::COMMON_TIME)) {
-        return BAD_VALUE;
-    }
-
-    Mutex::Autolock lock(mMediaTimeTransformLock);
-    mMediaTimeTransform = xform;
-    mMediaTimeTransformTarget = target;
-    mMediaTimeTransformValid = true;
-
-    return NO_ERROR;
-}
-
-#define min(a, b) ((a) < (b) ? (a) : (b))
-
-// implementation of getNextBuffer for tracks whose buffers have timestamps
-status_t AudioFlinger::PlaybackThread::TimedTrack::getNextBuffer(
-    AudioBufferProvider::Buffer* buffer, int64_t pts)
-{
-    if (pts == AudioBufferProvider::kInvalidPTS) {
-        buffer->raw = NULL;
-        buffer->frameCount = 0;
-        mTimedAudioOutputOnTime = false;
-        return INVALID_OPERATION;
-    }
-
-    Mutex::Autolock _l(mTimedBufferQueueLock);
-
-    ALOG_ASSERT(!mQueueHeadInFlight,
-                "getNextBuffer called without releaseBuffer!");
-
-    while (true) {
-
-        // if we have no timed buffers, then fail
-        if (mTimedBufferQueue.isEmpty()) {
-            buffer->raw = NULL;
-            buffer->frameCount = 0;
-            return NOT_ENOUGH_DATA;
-        }
-
-        TimedBuffer& head = mTimedBufferQueue.editItemAt(0);
-
-        // calculate the PTS of the head of the timed buffer queue expressed in
-        // local time
-        int64_t headLocalPTS;
-        {
-            Mutex::Autolock mttLock(mMediaTimeTransformLock);
-
-            ALOG_ASSERT(mMediaTimeTransformValid, "media time transform invalid");
-
-            if (mMediaTimeTransform.a_to_b_denom == 0) {
-                // the transform represents a pause, so yield silence
-                timedYieldSilence_l(buffer->frameCount, buffer);
-                return NO_ERROR;
-            }
-
-            int64_t transformedPTS;
-            if (!mMediaTimeTransform.doForwardTransform(head.pts(),
-                                                        &transformedPTS)) {
-                // the transform failed.  this shouldn't happen, but if it does
-                // then just drop this buffer
-                ALOGW("timedGetNextBuffer transform failed");
-                buffer->raw = NULL;
-                buffer->frameCount = 0;
-                trimTimedBufferQueueHead_l("getNextBuffer; no transform");
-                return NO_ERROR;
-            }
-
-            if (mMediaTimeTransformTarget == TimedAudioTrack::COMMON_TIME) {
-                if (OK != mCCHelper.commonTimeToLocalTime(transformedPTS,
-                                                          &headLocalPTS)) {
-                    buffer->raw = NULL;
-                    buffer->frameCount = 0;
-                    return INVALID_OPERATION;
-                }
-            } else {
-                headLocalPTS = transformedPTS;
-            }
-        }
-
-        // adjust the head buffer's PTS to reflect the portion of the head buffer
-        // that has already been consumed
-        int64_t effectivePTS = headLocalPTS +
-                ((head.position() / mFrameSize) * mLocalTimeFreq / sampleRate());
-
-        // Calculate the delta in samples between the head of the input buffer
-        // queue and the start of the next output buffer that will be written.
-        // If the transformation fails because of over or underflow, it means
-        // that the sample's position in the output stream is so far out of
-        // whack that it should just be dropped.
-        int64_t sampleDelta;
-        if (llabs(effectivePTS - pts) >= (static_cast<int64_t>(1) << 31)) {
-            ALOGV("*** head buffer is too far from PTS: dropped buffer");
-            trimTimedBufferQueueHead_l("getNextBuffer, buf pts too far from"
-                                       " mix");
-            continue;
-        }
-        if (!mLocalTimeToSampleTransform.doForwardTransform(
-                (effectivePTS - pts) << 32, &sampleDelta)) {
-            ALOGV("*** too late during sample rate transform: dropped buffer");
-            trimTimedBufferQueueHead_l("getNextBuffer, bad local to sample");
-            continue;
-        }
-
-        ALOGVV("*** getNextBuffer head.pts=%lld head.pos=%d pts=%lld"
-               " sampleDelta=[%d.%08x]",
-               head.pts(), head.position(), pts,
-               static_cast<int32_t>((sampleDelta >= 0 ? 0 : 1)
-                   + (sampleDelta >> 32)),
-               static_cast<uint32_t>(sampleDelta & 0xFFFFFFFF));
-
-        // if the delta between the ideal placement for the next input sample and
-        // the current output position is within this threshold, then we will
-        // concatenate the next input samples to the previous output
-        const int64_t kSampleContinuityThreshold =
-                (static_cast<int64_t>(sampleRate()) << 32) / 250;
-
-        // if this is the first buffer of audio that we're emitting from this track
-        // then it should be almost exactly on time.
-        const int64_t kSampleStartupThreshold = 1LL << 32;
-
-        if ((mTimedAudioOutputOnTime && llabs(sampleDelta) <= kSampleContinuityThreshold) ||
-           (!mTimedAudioOutputOnTime && llabs(sampleDelta) <= kSampleStartupThreshold)) {
-            // the next input is close enough to being on time, so concatenate it
-            // with the last output
-            timedYieldSamples_l(buffer);
-
-            ALOGVV("*** on time: head.pos=%d frameCount=%u",
-                    head.position(), buffer->frameCount);
-            return NO_ERROR;
-        }
-
-        // Looks like our output is not on time.  Reset our on timed status.
-        // Next time we mix samples from our input queue, then should be within
-        // the StartupThreshold.
-        mTimedAudioOutputOnTime = false;
-        if (sampleDelta > 0) {
-            // the gap between the current output position and the proper start of
-            // the next input sample is too big, so fill it with silence
-            uint32_t framesUntilNextInput = (sampleDelta + 0x80000000) >> 32;
-
-            timedYieldSilence_l(framesUntilNextInput, buffer);
-            ALOGV("*** silence: frameCount=%u", buffer->frameCount);
-            return NO_ERROR;
-        } else {
-            // the next input sample is late
-            uint32_t lateFrames = static_cast<uint32_t>(-((sampleDelta + 0x80000000) >> 32));
-            size_t onTimeSamplePosition =
-                    head.position() + lateFrames * mFrameSize;
-
-            if (onTimeSamplePosition > head.buffer()->size()) {
-                // all the remaining samples in the head are too late, so
-                // drop it and move on
-                ALOGV("*** too late: dropped buffer");
-                trimTimedBufferQueueHead_l("getNextBuffer, dropped late buffer");
-                continue;
-            } else {
-                // skip over the late samples
-                head.setPosition(onTimeSamplePosition);
-
-                // yield the available samples
-                timedYieldSamples_l(buffer);
-
-                ALOGV("*** late: head.pos=%d frameCount=%u", head.position(), buffer->frameCount);
-                return NO_ERROR;
-            }
-        }
-    }
-}
-
-// Yield samples from the timed buffer queue head up to the given output
-// buffer's capacity.
-//
-// Caller must hold mTimedBufferQueueLock
-void AudioFlinger::PlaybackThread::TimedTrack::timedYieldSamples_l(
-    AudioBufferProvider::Buffer* buffer) {
-
-    const TimedBuffer& head = mTimedBufferQueue[0];
-
-    buffer->raw = (static_cast<uint8_t*>(head.buffer()->pointer()) +
-                   head.position());
-
-    uint32_t framesLeftInHead = ((head.buffer()->size() - head.position()) /
-                                 mFrameSize);
-    size_t framesRequested = buffer->frameCount;
-    buffer->frameCount = min(framesLeftInHead, framesRequested);
-
-    mQueueHeadInFlight = true;
-    mTimedAudioOutputOnTime = true;
-}
-
-// Yield samples of silence up to the given output buffer's capacity
-//
-// Caller must hold mTimedBufferQueueLock
-void AudioFlinger::PlaybackThread::TimedTrack::timedYieldSilence_l(
-    uint32_t numFrames, AudioBufferProvider::Buffer* buffer) {
-
-    // lazily allocate a buffer filled with silence
-    if (mTimedSilenceBufferSize < numFrames * mFrameSize) {
-        delete [] mTimedSilenceBuffer;
-        mTimedSilenceBufferSize = numFrames * mFrameSize;
-        mTimedSilenceBuffer = new uint8_t[mTimedSilenceBufferSize];
-        memset(mTimedSilenceBuffer, 0, mTimedSilenceBufferSize);
-    }
-
-    buffer->raw = mTimedSilenceBuffer;
-    size_t framesRequested = buffer->frameCount;
-    buffer->frameCount = min(numFrames, framesRequested);
-
-    mTimedAudioOutputOnTime = false;
-}
-
-// AudioBufferProvider interface
-void AudioFlinger::PlaybackThread::TimedTrack::releaseBuffer(
-    AudioBufferProvider::Buffer* buffer) {
-
-    Mutex::Autolock _l(mTimedBufferQueueLock);
-
-    // If the buffer which was just released is part of the buffer at the head
-    // of the queue, be sure to update the amt of the buffer which has been
-    // consumed.  If the buffer being returned is not part of the head of the
-    // queue, its either because the buffer is part of the silence buffer, or
-    // because the head of the timed queue was trimmed after the mixer called
-    // getNextBuffer but before the mixer called releaseBuffer.
-    if (buffer->raw == mTimedSilenceBuffer) {
-        ALOG_ASSERT(!mQueueHeadInFlight,
-                    "Queue head in flight during release of silence buffer!");
-        goto done;
-    }
-
-    ALOG_ASSERT(mQueueHeadInFlight,
-                "TimedTrack::releaseBuffer of non-silence buffer, but no queue"
-                " head in flight.");
-
-    if (mTimedBufferQueue.size()) {
-        TimedBuffer& head = mTimedBufferQueue.editItemAt(0);
-
-        void* start = head.buffer()->pointer();
-        void* end   = reinterpret_cast<void*>(
-                        reinterpret_cast<uint8_t*>(head.buffer()->pointer())
-                        + head.buffer()->size());
-
-        ALOG_ASSERT((buffer->raw >= start) && (buffer->raw < end),
-                    "released buffer not within the head of the timed buffer"
-                    " queue; qHead = [%p, %p], released buffer = %p",
-                    start, end, buffer->raw);
-
-        head.setPosition(head.position() +
-                (buffer->frameCount * mFrameSize));
-        mQueueHeadInFlight = false;
-
-        ALOG_ASSERT(mFramesPendingInQueue >= buffer->frameCount,
-                    "Bad bookkeeping during releaseBuffer!  Should have at"
-                    " least %u queued frames, but we think we have only %u",
-                    buffer->frameCount, mFramesPendingInQueue);
-
-        mFramesPendingInQueue -= buffer->frameCount;
-
-        if ((static_cast<size_t>(head.position()) >= head.buffer()->size())
-            || mTrimQueueHeadOnRelease) {
-            trimTimedBufferQueueHead_l("releaseBuffer");
-            mTrimQueueHeadOnRelease = false;
-        }
-    } else {
-        LOG_FATAL("TimedTrack::releaseBuffer of non-silence buffer with no"
-                  " buffers in the timed buffer queue");
-    }
-
-done:
-    buffer->raw = 0;
-    buffer->frameCount = 0;
-}
-
-size_t AudioFlinger::PlaybackThread::TimedTrack::framesReady() const {
-    Mutex::Autolock _l(mTimedBufferQueueLock);
-    return mFramesPendingInQueue;
-}
-
-AudioFlinger::PlaybackThread::TimedTrack::TimedBuffer::TimedBuffer()
-        : mPTS(0), mPosition(0) {}
-
-AudioFlinger::PlaybackThread::TimedTrack::TimedBuffer::TimedBuffer(
-    const sp<IMemory>& buffer, int64_t pts)
-        : mBuffer(buffer), mPTS(pts), mPosition(0) {}
-
-// ----------------------------------------------------------------------------
-
-// RecordTrack constructor must be called with AudioFlinger::mLock held
-AudioFlinger::RecordThread::RecordTrack::RecordTrack(
-            RecordThread *thread,
-            const sp<Client>& client,
-            uint32_t sampleRate,
-            audio_format_t format,
-            audio_channel_mask_t channelMask,
-            size_t frameCount,
-            int sessionId)
-    :   TrackBase(thread, client, sampleRate, format,
-                  channelMask, frameCount, 0 /*sharedBuffer*/, sessionId),
-        mOverflow(false)
-{
-    ALOGV("RecordTrack constructor, size %d", (int)mBufferEnd - (int)mBuffer);
-}
-
-AudioFlinger::RecordThread::RecordTrack::~RecordTrack()
-{
-    ALOGV("%s", __func__);
-}
-
-// AudioBufferProvider interface
-status_t AudioFlinger::RecordThread::RecordTrack::getNextBuffer(AudioBufferProvider::Buffer* buffer,
-        int64_t pts)
-{
-    audio_track_cblk_t* cblk = this->cblk();
-    uint32_t framesAvail;
-    uint32_t framesReq = buffer->frameCount;
-
-    // Check if last stepServer failed, try to step now
-    if (mStepServerFailed) {
-        if (!step()) {
-            goto getNextBuffer_exit;
-        }
-        ALOGV("stepServer recovered");
-        mStepServerFailed = false;
-    }
-
-    // FIXME lock is not actually held, so overrun is possible
-    framesAvail = cblk->framesAvailableIn_l(mFrameCount);
-
-    if (CC_LIKELY(framesAvail)) {
-        uint32_t s = cblk->server;
-        uint32_t bufferEnd = cblk->serverBase + mFrameCount;
-
-        if (framesReq > framesAvail) {
-            framesReq = framesAvail;
-        }
-        if (framesReq > bufferEnd - s) {
-            framesReq = bufferEnd - s;
-        }
-
-        buffer->raw = getBuffer(s, framesReq);
-        buffer->frameCount = framesReq;
-        return NO_ERROR;
-    }
-
-getNextBuffer_exit:
-    buffer->raw = NULL;
-    buffer->frameCount = 0;
-    return NOT_ENOUGH_DATA;
-}
-
-status_t AudioFlinger::RecordThread::RecordTrack::start(AudioSystem::sync_event_t event,
-                                                        int triggerSession)
-{
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread != 0) {
-        RecordThread *recordThread = (RecordThread *)thread.get();
-        return recordThread->start(this, event, triggerSession);
-    } else {
-        return BAD_VALUE;
-    }
-}
-
-void AudioFlinger::RecordThread::RecordTrack::stop()
-{
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread != 0) {
-        RecordThread *recordThread = (RecordThread *)thread.get();
-        recordThread->mLock.lock();
-        bool doStop = recordThread->stop_l(this);
-        if (doStop) {
-            TrackBase::reset();
-            // Force overrun condition to avoid false overrun callback until first data is
-            // read from buffer
-            android_atomic_or(CBLK_UNDERRUN, &mCblk->flags);
-        }
-        recordThread->mLock.unlock();
-        if (doStop) {
-            AudioSystem::stopInput(recordThread->id());
-        }
-    }
-}
-
-/*static*/ void AudioFlinger::RecordThread::RecordTrack::appendDumpHeader(String8& result)
-{
-    result.append("   Clien Fmt Chn mask   Session Step S SRate  Serv     User   FrameCount\n");
-}
-
-void AudioFlinger::RecordThread::RecordTrack::dump(char* buffer, size_t size)
-{
-    snprintf(buffer, size, "   %05d %03u 0x%08x %05d   %04u %01d %05u  %08x %08x %05d\n",
-            (mClient == 0) ? getpid_cached : mClient->pid(),
-            mFormat,
-            mChannelMask,
-            mSessionId,
-            mStepCount,
-            mState,
-            mCblk->sampleRate,
-            mCblk->server,
-            mCblk->user,
-            mFrameCount);
-}
-
-bool AudioFlinger::RecordThread::RecordTrack::isOut() const
-{
-    return false;
-}
-
-// ----------------------------------------------------------------------------
-
-AudioFlinger::PlaybackThread::OutputTrack::OutputTrack(
-            PlaybackThread *playbackThread,
-            DuplicatingThread *sourceThread,
-            uint32_t sampleRate,
-            audio_format_t format,
-            audio_channel_mask_t channelMask,
-            size_t frameCount)
-    :   Track(playbackThread, NULL, AUDIO_STREAM_CNT, sampleRate, format, channelMask, frameCount,
-                NULL, 0, IAudioFlinger::TRACK_DEFAULT),
-    mActive(false), mSourceThread(sourceThread), mBuffers(NULL)
-{
-
-    if (mCblk != NULL) {
-        mBuffers = (char*)mCblk + sizeof(audio_track_cblk_t);
-        mOutBuffer.frameCount = 0;
-        playbackThread->mTracks.add(this);
-        ALOGV("OutputTrack constructor mCblk %p, mBuffer %p, mBuffers %p, " \
-                "mCblk->frameCount %d, mCblk->sampleRate %u, mChannelMask 0x%08x mBufferEnd %p",
-                mCblk, mBuffer, mBuffers,
-                mCblk->frameCount, mCblk->sampleRate, mChannelMask, mBufferEnd);
-    } else {
-        ALOGW("Error creating output track on thread %p", playbackThread);
-    }
-}
-
-AudioFlinger::PlaybackThread::OutputTrack::~OutputTrack()
-{
-    clearBufferQueue();
-}
-
-status_t AudioFlinger::PlaybackThread::OutputTrack::start(AudioSystem::sync_event_t event,
-                                                          int triggerSession)
-{
-    status_t status = Track::start(event, triggerSession);
-    if (status != NO_ERROR) {
-        return status;
-    }
-
-    mActive = true;
-    mRetryCount = 127;
-    return status;
-}
-
-void AudioFlinger::PlaybackThread::OutputTrack::stop()
-{
-    Track::stop();
-    clearBufferQueue();
-    mOutBuffer.frameCount = 0;
-    mActive = false;
-}
-
-bool AudioFlinger::PlaybackThread::OutputTrack::write(int16_t* data, uint32_t frames)
-{
-    Buffer *pInBuffer;
-    Buffer inBuffer;
-    uint32_t channelCount = mChannelCount;
-    bool outputBufferFull = false;
-    inBuffer.frameCount = frames;
-    inBuffer.i16 = data;
-
-    uint32_t waitTimeLeftMs = mSourceThread->waitTimeMs();
-
-    if (!mActive && frames != 0) {
-        start();
-        sp<ThreadBase> thread = mThread.promote();
-        if (thread != 0) {
-            MixerThread *mixerThread = (MixerThread *)thread.get();
-            if (mFrameCount > frames){
-                if (mBufferQueue.size() < kMaxOverFlowBuffers) {
-                    uint32_t startFrames = (mFrameCount - frames);
-                    pInBuffer = new Buffer;
-                    pInBuffer->mBuffer = new int16_t[startFrames * channelCount];
-                    pInBuffer->frameCount = startFrames;
-                    pInBuffer->i16 = pInBuffer->mBuffer;
-                    memset(pInBuffer->raw, 0, startFrames * channelCount * sizeof(int16_t));
-                    mBufferQueue.add(pInBuffer);
-                } else {
-                    ALOGW ("OutputTrack::write() %p no more buffers in queue", this);
-                }
-            }
-        }
-    }
-
-    while (waitTimeLeftMs) {
-        // First write pending buffers, then new data
-        if (mBufferQueue.size()) {
-            pInBuffer = mBufferQueue.itemAt(0);
-        } else {
-            pInBuffer = &inBuffer;
-        }
-
-        if (pInBuffer->frameCount == 0) {
-            break;
-        }
-
-        if (mOutBuffer.frameCount == 0) {
-            mOutBuffer.frameCount = pInBuffer->frameCount;
-            nsecs_t startTime = systemTime();
-            if (obtainBuffer(&mOutBuffer, waitTimeLeftMs) == (status_t)NO_MORE_BUFFERS) {
-                ALOGV ("OutputTrack::write() %p thread %p no more output buffers", this,
-                        mThread.unsafe_get());
-                outputBufferFull = true;
-                break;
-            }
-            uint32_t waitTimeMs = (uint32_t)ns2ms(systemTime() - startTime);
-            if (waitTimeLeftMs >= waitTimeMs) {
-                waitTimeLeftMs -= waitTimeMs;
-            } else {
-                waitTimeLeftMs = 0;
-            }
-        }
-
-        uint32_t outFrames = pInBuffer->frameCount > mOutBuffer.frameCount ? mOutBuffer.frameCount :
-                pInBuffer->frameCount;
-        memcpy(mOutBuffer.raw, pInBuffer->raw, outFrames * channelCount * sizeof(int16_t));
-        mCblk->stepUserOut(outFrames, mFrameCount);
-        pInBuffer->frameCount -= outFrames;
-        pInBuffer->i16 += outFrames * channelCount;
-        mOutBuffer.frameCount -= outFrames;
-        mOutBuffer.i16 += outFrames * channelCount;
-
-        if (pInBuffer->frameCount == 0) {
-            if (mBufferQueue.size()) {
-                mBufferQueue.removeAt(0);
-                delete [] pInBuffer->mBuffer;
-                delete pInBuffer;
-                ALOGV("OutputTrack::write() %p thread %p released overflow buffer %d", this,
-                        mThread.unsafe_get(), mBufferQueue.size());
-            } else {
-                break;
-            }
-        }
-    }
-
-    // If we could not write all frames, allocate a buffer and queue it for next time.
-    if (inBuffer.frameCount) {
-        sp<ThreadBase> thread = mThread.promote();
-        if (thread != 0 && !thread->standby()) {
-            if (mBufferQueue.size() < kMaxOverFlowBuffers) {
-                pInBuffer = new Buffer;
-                pInBuffer->mBuffer = new int16_t[inBuffer.frameCount * channelCount];
-                pInBuffer->frameCount = inBuffer.frameCount;
-                pInBuffer->i16 = pInBuffer->mBuffer;
-                memcpy(pInBuffer->raw, inBuffer.raw, inBuffer.frameCount * channelCount *
-                        sizeof(int16_t));
-                mBufferQueue.add(pInBuffer);
-                ALOGV("OutputTrack::write() %p thread %p adding overflow buffer %d", this,
-                        mThread.unsafe_get(), mBufferQueue.size());
-            } else {
-                ALOGW("OutputTrack::write() %p thread %p no more overflow buffers",
-                        mThread.unsafe_get(), this);
-            }
-        }
-    }
-
-    // Calling write() with a 0 length buffer, means that no more data will be written:
-    // If no more buffers are pending, fill output track buffer to make sure it is started
-    // by output mixer.
-    if (frames == 0 && mBufferQueue.size() == 0) {
-        if (mCblk->user < mFrameCount) {
-            frames = mFrameCount - mCblk->user;
-            pInBuffer = new Buffer;
-            pInBuffer->mBuffer = new int16_t[frames * channelCount];
-            pInBuffer->frameCount = frames;
-            pInBuffer->i16 = pInBuffer->mBuffer;
-            memset(pInBuffer->raw, 0, frames * channelCount * sizeof(int16_t));
-            mBufferQueue.add(pInBuffer);
-        } else if (mActive) {
-            stop();
-        }
-    }
-
-    return outputBufferFull;
-}
-
-status_t AudioFlinger::PlaybackThread::OutputTrack::obtainBuffer(
-        AudioBufferProvider::Buffer* buffer, uint32_t waitTimeMs)
-{
-    int active;
-    status_t result;
-    audio_track_cblk_t* cblk = mCblk;
-    uint32_t framesReq = buffer->frameCount;
-
-    ALOGVV("OutputTrack::obtainBuffer user %d, server %d", cblk->user, cblk->server);
-    buffer->frameCount  = 0;
-
-    uint32_t framesAvail = cblk->framesAvailableOut(mFrameCount);
-
-
-    if (framesAvail == 0) {
-        Mutex::Autolock _l(cblk->lock);
-        goto start_loop_here;
-        while (framesAvail == 0) {
-            active = mActive;
-            if (CC_UNLIKELY(!active)) {
-                ALOGV("Not active and NO_MORE_BUFFERS");
-                return NO_MORE_BUFFERS;
-            }
-            result = cblk->cv.waitRelative(cblk->lock, milliseconds(waitTimeMs));
-            if (result != NO_ERROR) {
-                return NO_MORE_BUFFERS;
-            }
-            // read the server count again
-        start_loop_here:
-            framesAvail = cblk->framesAvailableOut_l(mFrameCount);
-        }
-    }
-
-//    if (framesAvail < framesReq) {
-//        return NO_MORE_BUFFERS;
-//    }
-
-    if (framesReq > framesAvail) {
-        framesReq = framesAvail;
-    }
-
-    uint32_t u = cblk->user;
-    uint32_t bufferEnd = cblk->userBase + mFrameCount;
-
-    if (framesReq > bufferEnd - u) {
-        framesReq = bufferEnd - u;
-    }
-
-    buffer->frameCount  = framesReq;
-    buffer->raw         = cblk->buffer(mBuffers, mFrameSize, u);
-    return NO_ERROR;
-}
-
-
-void AudioFlinger::PlaybackThread::OutputTrack::clearBufferQueue()
-{
-    size_t size = mBufferQueue.size();
 
-    for (size_t i = 0; i < size; i++) {
-        Buffer *pBuffer = mBufferQueue.itemAt(i);
-        delete [] pBuffer->mBuffer;
-        delete pBuffer;
-    }
-    mBufferQueue.clear();
-}
 
 // ----------------------------------------------------------------------------
 
@@ -5851,88 +1116,6 @@
     mAudioFlinger->removeNotificationClient(mPid);
 }
 
-// ----------------------------------------------------------------------------
-
-AudioFlinger::TrackHandle::TrackHandle(const sp<AudioFlinger::PlaybackThread::Track>& track)
-    : BnAudioTrack(),
-      mTrack(track)
-{
-}
-
-AudioFlinger::TrackHandle::~TrackHandle() {
-    // just stop the track on deletion, associated resources
-    // will be freed from the main thread once all pending buffers have
-    // been played. Unless it's not in the active track list, in which
-    // case we free everything now...
-    mTrack->destroy();
-}
-
-sp<IMemory> AudioFlinger::TrackHandle::getCblk() const {
-    return mTrack->getCblk();
-}
-
-status_t AudioFlinger::TrackHandle::start() {
-    return mTrack->start();
-}
-
-void AudioFlinger::TrackHandle::stop() {
-    mTrack->stop();
-}
-
-void AudioFlinger::TrackHandle::flush() {
-    mTrack->flush();
-}
-
-void AudioFlinger::TrackHandle::mute(bool e) {
-    mTrack->mute(e);
-}
-
-void AudioFlinger::TrackHandle::pause() {
-    mTrack->pause();
-}
-
-status_t AudioFlinger::TrackHandle::attachAuxEffect(int EffectId)
-{
-    return mTrack->attachAuxEffect(EffectId);
-}
-
-status_t AudioFlinger::TrackHandle::allocateTimedBuffer(size_t size,
-                                                         sp<IMemory>* buffer) {
-    if (!mTrack->isTimedTrack())
-        return INVALID_OPERATION;
-
-    PlaybackThread::TimedTrack* tt =
-            reinterpret_cast<PlaybackThread::TimedTrack*>(mTrack.get());
-    return tt->allocateTimedBuffer(size, buffer);
-}
-
-status_t AudioFlinger::TrackHandle::queueTimedBuffer(const sp<IMemory>& buffer,
-                                                     int64_t pts) {
-    if (!mTrack->isTimedTrack())
-        return INVALID_OPERATION;
-
-    PlaybackThread::TimedTrack* tt =
-            reinterpret_cast<PlaybackThread::TimedTrack*>(mTrack.get());
-    return tt->queueTimedBuffer(buffer, pts);
-}
-
-status_t AudioFlinger::TrackHandle::setMediaTimeTransform(
-    const LinearTransform& xform, int target) {
-
-    if (!mTrack->isTimedTrack())
-        return INVALID_OPERATION;
-
-    PlaybackThread::TimedTrack* tt =
-            reinterpret_cast<PlaybackThread::TimedTrack*>(mTrack.get());
-    return tt->setMediaTimeTransform(
-        xform, static_cast<TimedAudioTrack::TargetTimeline>(target));
-}
-
-status_t AudioFlinger::TrackHandle::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    return BnAudioTrack::onTransact(code, data, reply, flags);
-}
 
 // ----------------------------------------------------------------------------
 
@@ -6006,912 +1189,6 @@
     return recordHandle;
 }
 
-// ----------------------------------------------------------------------------
-
-AudioFlinger::RecordHandle::RecordHandle(
-        const sp<AudioFlinger::RecordThread::RecordTrack>& recordTrack)
-    : BnAudioRecord(),
-    mRecordTrack(recordTrack)
-{
-}
-
-AudioFlinger::RecordHandle::~RecordHandle() {
-    stop_nonvirtual();
-    mRecordTrack->destroy();
-}
-
-sp<IMemory> AudioFlinger::RecordHandle::getCblk() const {
-    return mRecordTrack->getCblk();
-}
-
-status_t AudioFlinger::RecordHandle::start(int /*AudioSystem::sync_event_t*/ event,
-        int triggerSession) {
-    ALOGV("RecordHandle::start()");
-    return mRecordTrack->start((AudioSystem::sync_event_t)event, triggerSession);
-}
-
-void AudioFlinger::RecordHandle::stop() {
-    stop_nonvirtual();
-}
-
-void AudioFlinger::RecordHandle::stop_nonvirtual() {
-    ALOGV("RecordHandle::stop()");
-    mRecordTrack->stop();
-}
-
-status_t AudioFlinger::RecordHandle::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    return BnAudioRecord::onTransact(code, data, reply, flags);
-}
-
-// ----------------------------------------------------------------------------
-
-AudioFlinger::RecordThread::RecordThread(const sp<AudioFlinger>& audioFlinger,
-                                         AudioStreamIn *input,
-                                         uint32_t sampleRate,
-                                         audio_channel_mask_t channelMask,
-                                         audio_io_handle_t id,
-                                         audio_devices_t device,
-                                         const sp<NBAIO_Sink>& teeSink) :
-    ThreadBase(audioFlinger, id, AUDIO_DEVICE_NONE, device, RECORD),
-    mInput(input), mResampler(NULL), mRsmpOutBuffer(NULL), mRsmpInBuffer(NULL),
-    // mRsmpInIndex and mInputBytes set by readInputParameters()
-    mReqChannelCount(popcount(channelMask)),
-    mReqSampleRate(sampleRate),
-    // mBytesRead is only meaningful while active, and so is cleared in start()
-    // (but might be better to also clear here for dump?)
-    mTeeSink(teeSink)
-{
-    snprintf(mName, kNameLength, "AudioIn_%X", id);
-
-    readInputParameters();
-
-}
-
-
-AudioFlinger::RecordThread::~RecordThread()
-{
-    delete[] mRsmpInBuffer;
-    delete mResampler;
-    delete[] mRsmpOutBuffer;
-}
-
-void AudioFlinger::RecordThread::onFirstRef()
-{
-    run(mName, PRIORITY_URGENT_AUDIO);
-}
-
-status_t AudioFlinger::RecordThread::readyToRun()
-{
-    status_t status = initCheck();
-    ALOGW_IF(status != NO_ERROR,"RecordThread %p could not initialize", this);
-    return status;
-}
-
-bool AudioFlinger::RecordThread::threadLoop()
-{
-    AudioBufferProvider::Buffer buffer;
-    sp<RecordTrack> activeTrack;
-    Vector< sp<EffectChain> > effectChains;
-
-    nsecs_t lastWarning = 0;
-
-    inputStandBy();
-    acquireWakeLock();
-
-    // used to verify we've read at least once before evaluating how many bytes were read
-    bool readOnce = false;
-
-    // start recording
-    while (!exitPending()) {
-
-        processConfigEvents();
-
-        { // scope for mLock
-            Mutex::Autolock _l(mLock);
-            checkForNewParameters_l();
-            if (mActiveTrack == 0 && mConfigEvents.isEmpty()) {
-                standby();
-
-                if (exitPending()) {
-                    break;
-                }
-
-                releaseWakeLock_l();
-                ALOGV("RecordThread: loop stopping");
-                // go to sleep
-                mWaitWorkCV.wait(mLock);
-                ALOGV("RecordThread: loop starting");
-                acquireWakeLock_l();
-                continue;
-            }
-            if (mActiveTrack != 0) {
-                if (mActiveTrack->mState == TrackBase::PAUSING) {
-                    standby();
-                    mActiveTrack.clear();
-                    mStartStopCond.broadcast();
-                } else if (mActiveTrack->mState == TrackBase::RESUMING) {
-                    if (mReqChannelCount != mActiveTrack->channelCount()) {
-                        mActiveTrack.clear();
-                        mStartStopCond.broadcast();
-                    } else if (readOnce) {
-                        // record start succeeds only if first read from audio input
-                        // succeeds
-                        if (mBytesRead >= 0) {
-                            mActiveTrack->mState = TrackBase::ACTIVE;
-                        } else {
-                            mActiveTrack.clear();
-                        }
-                        mStartStopCond.broadcast();
-                    }
-                    mStandby = false;
-                } else if (mActiveTrack->mState == TrackBase::TERMINATED) {
-                    removeTrack_l(mActiveTrack);
-                    mActiveTrack.clear();
-                }
-            }
-            lockEffectChains_l(effectChains);
-        }
-
-        if (mActiveTrack != 0) {
-            if (mActiveTrack->mState != TrackBase::ACTIVE &&
-                mActiveTrack->mState != TrackBase::RESUMING) {
-                unlockEffectChains(effectChains);
-                usleep(kRecordThreadSleepUs);
-                continue;
-            }
-            for (size_t i = 0; i < effectChains.size(); i ++) {
-                effectChains[i]->process_l();
-            }
-
-            buffer.frameCount = mFrameCount;
-            if (CC_LIKELY(mActiveTrack->getNextBuffer(&buffer) == NO_ERROR)) {
-                readOnce = true;
-                size_t framesOut = buffer.frameCount;
-                if (mResampler == NULL) {
-                    // no resampling
-                    while (framesOut) {
-                        size_t framesIn = mFrameCount - mRsmpInIndex;
-                        if (framesIn) {
-                            int8_t *src = (int8_t *)mRsmpInBuffer + mRsmpInIndex * mFrameSize;
-                            int8_t *dst = buffer.i8 + (buffer.frameCount - framesOut) *
-                                    mActiveTrack->mFrameSize;
-                            if (framesIn > framesOut)
-                                framesIn = framesOut;
-                            mRsmpInIndex += framesIn;
-                            framesOut -= framesIn;
-                            if (mChannelCount == mReqChannelCount ||
-                                mFormat != AUDIO_FORMAT_PCM_16_BIT) {
-                                memcpy(dst, src, framesIn * mFrameSize);
-                            } else {
-                                if (mChannelCount == 1) {
-                                    upmix_to_stereo_i16_from_mono_i16((int16_t *)dst,
-                                            (int16_t *)src, framesIn);
-                                } else {
-                                    downmix_to_mono_i16_from_stereo_i16((int16_t *)dst,
-                                            (int16_t *)src, framesIn);
-                                }
-                            }
-                        }
-                        if (framesOut && mFrameCount == mRsmpInIndex) {
-                            void *readInto;
-                            if (framesOut == mFrameCount &&
-                                (mChannelCount == mReqChannelCount ||
-                                        mFormat != AUDIO_FORMAT_PCM_16_BIT)) {
-                                readInto = buffer.raw;
-                                framesOut = 0;
-                            } else {
-                                readInto = mRsmpInBuffer;
-                                mRsmpInIndex = 0;
-                            }
-                            mBytesRead = mInput->stream->read(mInput->stream, readInto, mInputBytes);
-                            if (mBytesRead <= 0) {
-                                if ((mBytesRead < 0) && (mActiveTrack->mState == TrackBase::ACTIVE))
-                                {
-                                    ALOGE("Error reading audio input");
-                                    // Force input into standby so that it tries to
-                                    // recover at next read attempt
-                                    inputStandBy();
-                                    usleep(kRecordThreadSleepUs);
-                                }
-                                mRsmpInIndex = mFrameCount;
-                                framesOut = 0;
-                                buffer.frameCount = 0;
-                            } else if (mTeeSink != 0) {
-                                (void) mTeeSink->write(readInto,
-                                        mBytesRead >> Format_frameBitShift(mTeeSink->format()));
-                            }
-                        }
-                    }
-                } else {
-                    // resampling
-
-                    memset(mRsmpOutBuffer, 0, framesOut * 2 * sizeof(int32_t));
-                    // alter output frame count as if we were expecting stereo samples
-                    if (mChannelCount == 1 && mReqChannelCount == 1) {
-                        framesOut >>= 1;
-                    }
-                    mResampler->resample(mRsmpOutBuffer, framesOut,
-                            this /* AudioBufferProvider* */);
-                    // ditherAndClamp() works as long as all buffers returned by
-                    // mActiveTrack->getNextBuffer() are 32 bit aligned which should be always true.
-                    if (mChannelCount == 2 && mReqChannelCount == 1) {
-                        ditherAndClamp(mRsmpOutBuffer, mRsmpOutBuffer, framesOut);
-                        // the resampler always outputs stereo samples:
-                        // do post stereo to mono conversion
-                        downmix_to_mono_i16_from_stereo_i16(buffer.i16, (int16_t *)mRsmpOutBuffer,
-                                framesOut);
-                    } else {
-                        ditherAndClamp((int32_t *)buffer.raw, mRsmpOutBuffer, framesOut);
-                    }
-
-                }
-                if (mFramestoDrop == 0) {
-                    mActiveTrack->releaseBuffer(&buffer);
-                } else {
-                    if (mFramestoDrop > 0) {
-                        mFramestoDrop -= buffer.frameCount;
-                        if (mFramestoDrop <= 0) {
-                            clearSyncStartEvent();
-                        }
-                    } else {
-                        mFramestoDrop += buffer.frameCount;
-                        if (mFramestoDrop >= 0 || mSyncStartEvent == 0 ||
-                                mSyncStartEvent->isCancelled()) {
-                            ALOGW("Synced record %s, session %d, trigger session %d",
-                                  (mFramestoDrop >= 0) ? "timed out" : "cancelled",
-                                  mActiveTrack->sessionId(),
-                                  (mSyncStartEvent != 0) ? mSyncStartEvent->triggerSession() : 0);
-                            clearSyncStartEvent();
-                        }
-                    }
-                }
-                mActiveTrack->clearOverflow();
-            }
-            // client isn't retrieving buffers fast enough
-            else {
-                if (!mActiveTrack->setOverflow()) {
-                    nsecs_t now = systemTime();
-                    if ((now - lastWarning) > kWarningThrottleNs) {
-                        ALOGW("RecordThread: buffer overflow");
-                        lastWarning = now;
-                    }
-                }
-                // Release the processor for a while before asking for a new buffer.
-                // This will give the application more chance to read from the buffer and
-                // clear the overflow.
-                usleep(kRecordThreadSleepUs);
-            }
-        }
-        // enable changes in effect chain
-        unlockEffectChains(effectChains);
-        effectChains.clear();
-    }
-
-    standby();
-
-    {
-        Mutex::Autolock _l(mLock);
-        mActiveTrack.clear();
-        mStartStopCond.broadcast();
-    }
-
-    releaseWakeLock();
-
-    ALOGV("RecordThread %p exiting", this);
-    return false;
-}
-
-void AudioFlinger::RecordThread::standby()
-{
-    if (!mStandby) {
-        inputStandBy();
-        mStandby = true;
-    }
-}
-
-void AudioFlinger::RecordThread::inputStandBy()
-{
-    mInput->stream->common.standby(&mInput->stream->common);
-}
-
-sp<AudioFlinger::RecordThread::RecordTrack>  AudioFlinger::RecordThread::createRecordTrack_l(
-        const sp<AudioFlinger::Client>& client,
-        uint32_t sampleRate,
-        audio_format_t format,
-        audio_channel_mask_t channelMask,
-        size_t frameCount,
-        int sessionId,
-        IAudioFlinger::track_flags_t flags,
-        pid_t tid,
-        status_t *status)
-{
-    sp<RecordTrack> track;
-    status_t lStatus;
-
-    lStatus = initCheck();
-    if (lStatus != NO_ERROR) {
-        ALOGE("Audio driver not initialized.");
-        goto Exit;
-    }
-
-    // FIXME use flags and tid similar to createTrack_l()
-
-    { // scope for mLock
-        Mutex::Autolock _l(mLock);
-
-        track = new RecordTrack(this, client, sampleRate,
-                      format, channelMask, frameCount, sessionId);
-
-        if (track->getCblk() == 0) {
-            lStatus = NO_MEMORY;
-            goto Exit;
-        }
-        mTracks.add(track);
-
-        // disable AEC and NS if the device is a BT SCO headset supporting those pre processings
-        bool suspend = audio_is_bluetooth_sco_device(mInDevice) &&
-                        mAudioFlinger->btNrecIsOff();
-        setEffectSuspended_l(FX_IID_AEC, suspend, sessionId);
-        setEffectSuspended_l(FX_IID_NS, suspend, sessionId);
-    }
-    lStatus = NO_ERROR;
-
-Exit:
-    if (status) {
-        *status = lStatus;
-    }
-    return track;
-}
-
-status_t AudioFlinger::RecordThread::start(RecordThread::RecordTrack* recordTrack,
-                                           AudioSystem::sync_event_t event,
-                                           int triggerSession)
-{
-    ALOGV("RecordThread::start event %d, triggerSession %d", event, triggerSession);
-    sp<ThreadBase> strongMe = this;
-    status_t status = NO_ERROR;
-
-    if (event == AudioSystem::SYNC_EVENT_NONE) {
-        clearSyncStartEvent();
-    } else if (event != AudioSystem::SYNC_EVENT_SAME) {
-        mSyncStartEvent = mAudioFlinger->createSyncEvent(event,
-                                       triggerSession,
-                                       recordTrack->sessionId(),
-                                       syncStartEventCallback,
-                                       this);
-        // Sync event can be cancelled by the trigger session if the track is not in a
-        // compatible state in which case we start record immediately
-        if (mSyncStartEvent->isCancelled()) {
-            clearSyncStartEvent();
-        } else {
-            // do not wait for the event for more than AudioSystem::kSyncRecordStartTimeOutMs
-            mFramestoDrop = - ((AudioSystem::kSyncRecordStartTimeOutMs * mReqSampleRate) / 1000);
-        }
-    }
-
-    {
-        AutoMutex lock(mLock);
-        if (mActiveTrack != 0) {
-            if (recordTrack != mActiveTrack.get()) {
-                status = -EBUSY;
-            } else if (mActiveTrack->mState == TrackBase::PAUSING) {
-                mActiveTrack->mState = TrackBase::ACTIVE;
-            }
-            return status;
-        }
-
-        recordTrack->mState = TrackBase::IDLE;
-        mActiveTrack = recordTrack;
-        mLock.unlock();
-        status_t status = AudioSystem::startInput(mId);
-        mLock.lock();
-        if (status != NO_ERROR) {
-            mActiveTrack.clear();
-            clearSyncStartEvent();
-            return status;
-        }
-        mRsmpInIndex = mFrameCount;
-        mBytesRead = 0;
-        if (mResampler != NULL) {
-            mResampler->reset();
-        }
-        mActiveTrack->mState = TrackBase::RESUMING;
-        // signal thread to start
-        ALOGV("Signal record thread");
-        mWaitWorkCV.broadcast();
-        // do not wait for mStartStopCond if exiting
-        if (exitPending()) {
-            mActiveTrack.clear();
-            status = INVALID_OPERATION;
-            goto startError;
-        }
-        mStartStopCond.wait(mLock);
-        if (mActiveTrack == 0) {
-            ALOGV("Record failed to start");
-            status = BAD_VALUE;
-            goto startError;
-        }
-        ALOGV("Record started OK");
-        return status;
-    }
-startError:
-    AudioSystem::stopInput(mId);
-    clearSyncStartEvent();
-    return status;
-}
-
-void AudioFlinger::RecordThread::clearSyncStartEvent()
-{
-    if (mSyncStartEvent != 0) {
-        mSyncStartEvent->cancel();
-    }
-    mSyncStartEvent.clear();
-    mFramestoDrop = 0;
-}
-
-void AudioFlinger::RecordThread::syncStartEventCallback(const wp<SyncEvent>& event)
-{
-    sp<SyncEvent> strongEvent = event.promote();
-
-    if (strongEvent != 0) {
-        RecordThread *me = (RecordThread *)strongEvent->cookie();
-        me->handleSyncStartEvent(strongEvent);
-    }
-}
-
-void AudioFlinger::RecordThread::handleSyncStartEvent(const sp<SyncEvent>& event)
-{
-    if (event == mSyncStartEvent) {
-        // TODO: use actual buffer filling status instead of 2 buffers when info is available
-        // from audio HAL
-        mFramestoDrop = mFrameCount * 2;
-    }
-}
-
-bool AudioFlinger::RecordThread::stop_l(RecordThread::RecordTrack* recordTrack) {
-    ALOGV("RecordThread::stop");
-    if (recordTrack != mActiveTrack.get() || recordTrack->mState == TrackBase::PAUSING) {
-        return false;
-    }
-    recordTrack->mState = TrackBase::PAUSING;
-    // do not wait for mStartStopCond if exiting
-    if (exitPending()) {
-        return true;
-    }
-    mStartStopCond.wait(mLock);
-    // if we have been restarted, recordTrack == mActiveTrack.get() here
-    if (exitPending() || recordTrack != mActiveTrack.get()) {
-        ALOGV("Record stopped OK");
-        return true;
-    }
-    return false;
-}
-
-bool AudioFlinger::RecordThread::isValidSyncEvent(const sp<SyncEvent>& event) const
-{
-    return false;
-}
-
-status_t AudioFlinger::RecordThread::setSyncEvent(const sp<SyncEvent>& event)
-{
-#if 0   // This branch is currently dead code, but is preserved in case it will be needed in future
-    if (!isValidSyncEvent(event)) {
-        return BAD_VALUE;
-    }
-
-    int eventSession = event->triggerSession();
-    status_t ret = NAME_NOT_FOUND;
-
-    Mutex::Autolock _l(mLock);
-
-    for (size_t i = 0; i < mTracks.size(); i++) {
-        sp<RecordTrack> track = mTracks[i];
-        if (eventSession == track->sessionId()) {
-            (void) track->setSyncEvent(event);
-            ret = NO_ERROR;
-        }
-    }
-    return ret;
-#else
-    return BAD_VALUE;
-#endif
-}
-
-void AudioFlinger::RecordThread::RecordTrack::destroy()
-{
-    // see comments at AudioFlinger::PlaybackThread::Track::destroy()
-    sp<RecordTrack> keep(this);
-    {
-        sp<ThreadBase> thread = mThread.promote();
-        if (thread != 0) {
-            if (mState == ACTIVE || mState == RESUMING) {
-                AudioSystem::stopInput(thread->id());
-            }
-            AudioSystem::releaseInput(thread->id());
-            Mutex::Autolock _l(thread->mLock);
-            RecordThread *recordThread = (RecordThread *) thread.get();
-            recordThread->destroyTrack_l(this);
-        }
-    }
-}
-
-// destroyTrack_l() must be called with ThreadBase::mLock held
-void AudioFlinger::RecordThread::destroyTrack_l(const sp<RecordTrack>& track)
-{
-    track->mState = TrackBase::TERMINATED;
-    // active tracks are removed by threadLoop()
-    if (mActiveTrack != track) {
-        removeTrack_l(track);
-    }
-}
-
-void AudioFlinger::RecordThread::removeTrack_l(const sp<RecordTrack>& track)
-{
-    mTracks.remove(track);
-    // need anything related to effects here?
-}
-
-void AudioFlinger::RecordThread::dump(int fd, const Vector<String16>& args)
-{
-    dumpInternals(fd, args);
-    dumpTracks(fd, args);
-    dumpEffectChains(fd, args);
-}
-
-void AudioFlinger::RecordThread::dumpInternals(int fd, const Vector<String16>& args)
-{
-    const size_t SIZE = 256;
-    char buffer[SIZE];
-    String8 result;
-
-    snprintf(buffer, SIZE, "\nInput thread %p internals\n", this);
-    result.append(buffer);
-
-    if (mActiveTrack != 0) {
-        snprintf(buffer, SIZE, "In index: %d\n", mRsmpInIndex);
-        result.append(buffer);
-        snprintf(buffer, SIZE, "In size: %d\n", mInputBytes);
-        result.append(buffer);
-        snprintf(buffer, SIZE, "Resampling: %d\n", (mResampler != NULL));
-        result.append(buffer);
-        snprintf(buffer, SIZE, "Out channel count: %u\n", mReqChannelCount);
-        result.append(buffer);
-        snprintf(buffer, SIZE, "Out sample rate: %u\n", mReqSampleRate);
-        result.append(buffer);
-    } else {
-        result.append("No active record client\n");
-    }
-
-    write(fd, result.string(), result.size());
-
-    dumpBase(fd, args);
-}
-
-void AudioFlinger::RecordThread::dumpTracks(int fd, const Vector<String16>& args)
-{
-    const size_t SIZE = 256;
-    char buffer[SIZE];
-    String8 result;
-
-    snprintf(buffer, SIZE, "Input thread %p tracks\n", this);
-    result.append(buffer);
-    RecordTrack::appendDumpHeader(result);
-    for (size_t i = 0; i < mTracks.size(); ++i) {
-        sp<RecordTrack> track = mTracks[i];
-        if (track != 0) {
-            track->dump(buffer, SIZE);
-            result.append(buffer);
-        }
-    }
-
-    if (mActiveTrack != 0) {
-        snprintf(buffer, SIZE, "\nInput thread %p active tracks\n", this);
-        result.append(buffer);
-        RecordTrack::appendDumpHeader(result);
-        mActiveTrack->dump(buffer, SIZE);
-        result.append(buffer);
-
-    }
-    write(fd, result.string(), result.size());
-}
-
-// AudioBufferProvider interface
-status_t AudioFlinger::RecordThread::getNextBuffer(AudioBufferProvider::Buffer* buffer, int64_t pts)
-{
-    size_t framesReq = buffer->frameCount;
-    size_t framesReady = mFrameCount - mRsmpInIndex;
-    int channelCount;
-
-    if (framesReady == 0) {
-        mBytesRead = mInput->stream->read(mInput->stream, mRsmpInBuffer, mInputBytes);
-        if (mBytesRead <= 0) {
-            if ((mBytesRead < 0) && (mActiveTrack->mState == TrackBase::ACTIVE)) {
-                ALOGE("RecordThread::getNextBuffer() Error reading audio input");
-                // Force input into standby so that it tries to
-                // recover at next read attempt
-                inputStandBy();
-                usleep(kRecordThreadSleepUs);
-            }
-            buffer->raw = NULL;
-            buffer->frameCount = 0;
-            return NOT_ENOUGH_DATA;
-        }
-        mRsmpInIndex = 0;
-        framesReady = mFrameCount;
-    }
-
-    if (framesReq > framesReady) {
-        framesReq = framesReady;
-    }
-
-    if (mChannelCount == 1 && mReqChannelCount == 2) {
-        channelCount = 1;
-    } else {
-        channelCount = 2;
-    }
-    buffer->raw = mRsmpInBuffer + mRsmpInIndex * channelCount;
-    buffer->frameCount = framesReq;
-    return NO_ERROR;
-}
-
-// AudioBufferProvider interface
-void AudioFlinger::RecordThread::releaseBuffer(AudioBufferProvider::Buffer* buffer)
-{
-    mRsmpInIndex += buffer->frameCount;
-    buffer->frameCount = 0;
-}
-
-bool AudioFlinger::RecordThread::checkForNewParameters_l()
-{
-    bool reconfig = false;
-
-    while (!mNewParameters.isEmpty()) {
-        status_t status = NO_ERROR;
-        String8 keyValuePair = mNewParameters[0];
-        AudioParameter param = AudioParameter(keyValuePair);
-        int value;
-        audio_format_t reqFormat = mFormat;
-        uint32_t reqSamplingRate = mReqSampleRate;
-        uint32_t reqChannelCount = mReqChannelCount;
-
-        if (param.getInt(String8(AudioParameter::keySamplingRate), value) == NO_ERROR) {
-            reqSamplingRate = value;
-            reconfig = true;
-        }
-        if (param.getInt(String8(AudioParameter::keyFormat), value) == NO_ERROR) {
-            reqFormat = (audio_format_t) value;
-            reconfig = true;
-        }
-        if (param.getInt(String8(AudioParameter::keyChannels), value) == NO_ERROR) {
-            reqChannelCount = popcount(value);
-            reconfig = true;
-        }
-        if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) {
-            // do not accept frame count changes if tracks are open as the track buffer
-            // size depends on frame count and correct behavior would not be guaranteed
-            // if frame count is changed after track creation
-            if (mActiveTrack != 0) {
-                status = INVALID_OPERATION;
-            } else {
-                reconfig = true;
-            }
-        }
-        if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) {
-            // forward device change to effects that have requested to be
-            // aware of attached audio device.
-            for (size_t i = 0; i < mEffectChains.size(); i++) {
-                mEffectChains[i]->setDevice_l(value);
-            }
-
-            // store input device and output device but do not forward output device to audio HAL.
-            // Note that status is ignored by the caller for output device
-            // (see AudioFlinger::setParameters()
-            if (audio_is_output_devices(value)) {
-                mOutDevice = value;
-                status = BAD_VALUE;
-            } else {
-                mInDevice = value;
-                // disable AEC and NS if the device is a BT SCO headset supporting those
-                // pre processings
-                if (mTracks.size() > 0) {
-                    bool suspend = audio_is_bluetooth_sco_device(mInDevice) &&
-                                        mAudioFlinger->btNrecIsOff();
-                    for (size_t i = 0; i < mTracks.size(); i++) {
-                        sp<RecordTrack> track = mTracks[i];
-                        setEffectSuspended_l(FX_IID_AEC, suspend, track->sessionId());
-                        setEffectSuspended_l(FX_IID_NS, suspend, track->sessionId());
-                    }
-                }
-            }
-        }
-        if (param.getInt(String8(AudioParameter::keyInputSource), value) == NO_ERROR &&
-                mAudioSource != (audio_source_t)value) {
-            // forward device change to effects that have requested to be
-            // aware of attached audio device.
-            for (size_t i = 0; i < mEffectChains.size(); i++) {
-                mEffectChains[i]->setAudioSource_l((audio_source_t)value);
-            }
-            mAudioSource = (audio_source_t)value;
-        }
-        if (status == NO_ERROR) {
-            status = mInput->stream->common.set_parameters(&mInput->stream->common,
-                    keyValuePair.string());
-            if (status == INVALID_OPERATION) {
-                inputStandBy();
-                status = mInput->stream->common.set_parameters(&mInput->stream->common,
-                        keyValuePair.string());
-            }
-            if (reconfig) {
-                if (status == BAD_VALUE &&
-                    reqFormat == mInput->stream->common.get_format(&mInput->stream->common) &&
-                    reqFormat == AUDIO_FORMAT_PCM_16_BIT &&
-                    ((int)mInput->stream->common.get_sample_rate(&mInput->stream->common)
-                            <= (2 * reqSamplingRate)) &&
-                    popcount(mInput->stream->common.get_channels(&mInput->stream->common))
-                            <= FCC_2 &&
-                    (reqChannelCount <= FCC_2)) {
-                    status = NO_ERROR;
-                }
-                if (status == NO_ERROR) {
-                    readInputParameters();
-                    sendIoConfigEvent_l(AudioSystem::INPUT_CONFIG_CHANGED);
-                }
-            }
-        }
-
-        mNewParameters.removeAt(0);
-
-        mParamStatus = status;
-        mParamCond.signal();
-        // wait for condition with time out in case the thread calling ThreadBase::setParameters()
-        // already timed out waiting for the status and will never signal the condition.
-        mWaitWorkCV.waitRelative(mLock, kSetParametersTimeoutNs);
-    }
-    return reconfig;
-}
-
-String8 AudioFlinger::RecordThread::getParameters(const String8& keys)
-{
-    char *s;
-    String8 out_s8 = String8();
-
-    Mutex::Autolock _l(mLock);
-    if (initCheck() != NO_ERROR) {
-        return out_s8;
-    }
-
-    s = mInput->stream->common.get_parameters(&mInput->stream->common, keys.string());
-    out_s8 = String8(s);
-    free(s);
-    return out_s8;
-}
-
-void AudioFlinger::RecordThread::audioConfigChanged_l(int event, int param) {
-    AudioSystem::OutputDescriptor desc;
-    void *param2 = NULL;
-
-    switch (event) {
-    case AudioSystem::INPUT_OPENED:
-    case AudioSystem::INPUT_CONFIG_CHANGED:
-        desc.channels = mChannelMask;
-        desc.samplingRate = mSampleRate;
-        desc.format = mFormat;
-        desc.frameCount = mFrameCount;
-        desc.latency = 0;
-        param2 = &desc;
-        break;
-
-    case AudioSystem::INPUT_CLOSED:
-    default:
-        break;
-    }
-    mAudioFlinger->audioConfigChanged_l(event, mId, param2);
-}
-
-void AudioFlinger::RecordThread::readInputParameters()
-{
-    delete mRsmpInBuffer;
-    // mRsmpInBuffer is always assigned a new[] below
-    delete mRsmpOutBuffer;
-    mRsmpOutBuffer = NULL;
-    delete mResampler;
-    mResampler = NULL;
-
-    mSampleRate = mInput->stream->common.get_sample_rate(&mInput->stream->common);
-    mChannelMask = mInput->stream->common.get_channels(&mInput->stream->common);
-    mChannelCount = (uint16_t)popcount(mChannelMask);
-    mFormat = mInput->stream->common.get_format(&mInput->stream->common);
-    mFrameSize = audio_stream_frame_size(&mInput->stream->common);
-    mInputBytes = mInput->stream->common.get_buffer_size(&mInput->stream->common);
-    mFrameCount = mInputBytes / mFrameSize;
-    mNormalFrameCount = mFrameCount; // not used by record, but used by input effects
-    mRsmpInBuffer = new int16_t[mFrameCount * mChannelCount];
-
-    if (mSampleRate != mReqSampleRate && mChannelCount <= FCC_2 && mReqChannelCount <= FCC_2)
-    {
-        int channelCount;
-        // optimization: if mono to mono, use the resampler in stereo to stereo mode to avoid
-        // stereo to mono post process as the resampler always outputs stereo.
-        if (mChannelCount == 1 && mReqChannelCount == 2) {
-            channelCount = 1;
-        } else {
-            channelCount = 2;
-        }
-        mResampler = AudioResampler::create(16, channelCount, mReqSampleRate);
-        mResampler->setSampleRate(mSampleRate);
-        mResampler->setVolume(AudioMixer::UNITY_GAIN, AudioMixer::UNITY_GAIN);
-        mRsmpOutBuffer = new int32_t[mFrameCount * 2];
-
-        // optmization: if mono to mono, alter input frame count as if we were inputing
-        // stereo samples
-        if (mChannelCount == 1 && mReqChannelCount == 1) {
-            mFrameCount >>= 1;
-        }
-
-    }
-    mRsmpInIndex = mFrameCount;
-}
-
-unsigned int AudioFlinger::RecordThread::getInputFramesLost()
-{
-    Mutex::Autolock _l(mLock);
-    if (initCheck() != NO_ERROR) {
-        return 0;
-    }
-
-    return mInput->stream->get_input_frames_lost(mInput->stream);
-}
-
-uint32_t AudioFlinger::RecordThread::hasAudioSession(int sessionId) const
-{
-    Mutex::Autolock _l(mLock);
-    uint32_t result = 0;
-    if (getEffectChain_l(sessionId) != 0) {
-        result = EFFECT_SESSION;
-    }
-
-    for (size_t i = 0; i < mTracks.size(); ++i) {
-        if (sessionId == mTracks[i]->sessionId()) {
-            result |= TRACK_SESSION;
-            break;
-        }
-    }
-
-    return result;
-}
-
-KeyedVector<int, bool> AudioFlinger::RecordThread::sessionIds() const
-{
-    KeyedVector<int, bool> ids;
-    Mutex::Autolock _l(mLock);
-    for (size_t j = 0; j < mTracks.size(); ++j) {
-        sp<RecordThread::RecordTrack> track = mTracks[j];
-        int sessionId = track->sessionId();
-        if (ids.indexOfKey(sessionId) < 0) {
-            ids.add(sessionId, true);
-        }
-    }
-    return ids;
-}
-
-AudioFlinger::AudioStreamIn* AudioFlinger::RecordThread::clearInput()
-{
-    Mutex::Autolock _l(mLock);
-    AudioStreamIn *input = mInput;
-    mInput = NULL;
-    return input;
-}
-
-// this method must always be called either with ThreadBase mLock held or inside the thread loop
-audio_stream_t* AudioFlinger::RecordThread::stream() const
-{
-    if (mInput == NULL) {
-        return NULL;
-    }
-    return &mInput->stream->common;
-}
 
 
 // ----------------------------------------------------------------------------
@@ -7871,2063 +2148,67 @@
     return NO_ERROR;
 }
 
-
-// PlaybackThread::createEffect_l() must be called with AudioFlinger::mLock held
-sp<AudioFlinger::EffectHandle> AudioFlinger::ThreadBase::createEffect_l(
-        const sp<AudioFlinger::Client>& client,
-        const sp<IEffectClient>& effectClient,
-        int32_t priority,
-        int sessionId,
-        effect_descriptor_t *desc,
-        int *enabled,
-        status_t *status
-        )
+void AudioFlinger::dumpTee(int fd, const sp<NBAIO_Source>& source, audio_io_handle_t id)
 {
-    sp<EffectModule> effect;
-    sp<EffectHandle> handle;
-    status_t lStatus;
-    sp<EffectChain> chain;
-    bool chainCreated = false;
-    bool effectCreated = false;
-    bool effectRegistered = false;
-
-    lStatus = initCheck();
-    if (lStatus != NO_ERROR) {
-        ALOGW("createEffect_l() Audio driver not initialized.");
-        goto Exit;
-    }
-
-    // Do not allow effects with session ID 0 on direct output or duplicating threads
-    // TODO: add rule for hw accelerated effects on direct outputs with non PCM format
-    if (sessionId == AUDIO_SESSION_OUTPUT_MIX && mType != MIXER) {
-        ALOGW("createEffect_l() Cannot add auxiliary effect %s to session %d",
-                desc->name, sessionId);
-        lStatus = BAD_VALUE;
-        goto Exit;
-    }
-    // Only Pre processor effects are allowed on input threads and only on input threads
-    if ((mType == RECORD) != ((desc->flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC)) {
-        ALOGW("createEffect_l() effect %s (flags %08x) created on wrong thread type %d",
-                desc->name, desc->flags, mType);
-        lStatus = BAD_VALUE;
-        goto Exit;
-    }
-
-    ALOGV("createEffect_l() thread %p effect %s on session %d", this, desc->name, sessionId);
-
-    { // scope for mLock
-        Mutex::Autolock _l(mLock);
-
-        // check for existing effect chain with the requested audio session
-        chain = getEffectChain_l(sessionId);
-        if (chain == 0) {
-            // create a new chain for this session
-            ALOGV("createEffect_l() new effect chain for session %d", sessionId);
-            chain = new EffectChain(this, sessionId);
-            addEffectChain_l(chain);
-            chain->setStrategy(getStrategyForSession_l(sessionId));
-            chainCreated = true;
-        } else {
-            effect = chain->getEffectFromDesc_l(desc);
-        }
-
-        ALOGV("createEffect_l() got effect %p on chain %p", effect.get(), chain.get());
-
-        if (effect == 0) {
-            int id = mAudioFlinger->nextUniqueId();
-            // Check CPU and memory usage
-            lStatus = AudioSystem::registerEffect(desc, mId, chain->strategy(), sessionId, id);
-            if (lStatus != NO_ERROR) {
-                goto Exit;
-            }
-            effectRegistered = true;
-            // create a new effect module if none present in the chain
-            effect = new EffectModule(this, chain, desc, id, sessionId);
-            lStatus = effect->status();
-            if (lStatus != NO_ERROR) {
-                goto Exit;
-            }
-            lStatus = chain->addEffect_l(effect);
-            if (lStatus != NO_ERROR) {
-                goto Exit;
-            }
-            effectCreated = true;
-
-            effect->setDevice(mOutDevice);
-            effect->setDevice(mInDevice);
-            effect->setMode(mAudioFlinger->getMode());
-            effect->setAudioSource(mAudioSource);
-        }
-        // create effect handle and connect it to effect module
-        handle = new EffectHandle(effect, client, effectClient, priority);
-        lStatus = effect->addHandle(handle.get());
-        if (enabled != NULL) {
-            *enabled = (int)effect->isEnabled();
-        }
-    }
-
-Exit:
-    if (lStatus != NO_ERROR && lStatus != ALREADY_EXISTS) {
-        Mutex::Autolock _l(mLock);
-        if (effectCreated) {
-            chain->removeEffect_l(effect);
-        }
-        if (effectRegistered) {
-            AudioSystem::unregisterEffect(effect->id());
-        }
-        if (chainCreated) {
-            removeEffectChain_l(chain);
-        }
-        handle.clear();
-    }
-
-    if (status != NULL) {
-        *status = lStatus;
-    }
-    return handle;
-}
-
-sp<AudioFlinger::EffectModule> AudioFlinger::ThreadBase::getEffect(int sessionId, int effectId)
-{
-    Mutex::Autolock _l(mLock);
-    return getEffect_l(sessionId, effectId);
-}
-
-sp<AudioFlinger::EffectModule> AudioFlinger::ThreadBase::getEffect_l(int sessionId, int effectId)
-{
-    sp<EffectChain> chain = getEffectChain_l(sessionId);
-    return chain != 0 ? chain->getEffectFromId_l(effectId) : 0;
-}
-
-// PlaybackThread::addEffect_l() must be called with AudioFlinger::mLock and
-// PlaybackThread::mLock held
-status_t AudioFlinger::ThreadBase::addEffect_l(const sp<EffectModule>& effect)
-{
-    // check for existing effect chain with the requested audio session
-    int sessionId = effect->sessionId();
-    sp<EffectChain> chain = getEffectChain_l(sessionId);
-    bool chainCreated = false;
-
-    if (chain == 0) {
-        // create a new chain for this session
-        ALOGV("addEffect_l() new effect chain for session %d", sessionId);
-        chain = new EffectChain(this, sessionId);
-        addEffectChain_l(chain);
-        chain->setStrategy(getStrategyForSession_l(sessionId));
-        chainCreated = true;
-    }
-    ALOGV("addEffect_l() %p chain %p effect %p", this, chain.get(), effect.get());
-
-    if (chain->getEffectFromId_l(effect->id()) != 0) {
-        ALOGW("addEffect_l() %p effect %s already present in chain %p",
-                this, effect->desc().name, chain.get());
-        return BAD_VALUE;
-    }
-
-    status_t status = chain->addEffect_l(effect);
-    if (status != NO_ERROR) {
-        if (chainCreated) {
-            removeEffectChain_l(chain);
-        }
-        return status;
-    }
-
-    effect->setDevice(mOutDevice);
-    effect->setDevice(mInDevice);
-    effect->setMode(mAudioFlinger->getMode());
-    effect->setAudioSource(mAudioSource);
-    return NO_ERROR;
-}
-
-void AudioFlinger::ThreadBase::removeEffect_l(const sp<EffectModule>& effect) {
-
-    ALOGV("removeEffect_l() %p effect %p", this, effect.get());
-    effect_descriptor_t desc = effect->desc();
-    if ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
-        detachAuxEffect_l(effect->id());
-    }
-
-    sp<EffectChain> chain = effect->chain().promote();
-    if (chain != 0) {
-        // remove effect chain if removing last effect
-        if (chain->removeEffect_l(effect) == 0) {
-            removeEffectChain_l(chain);
-        }
-    } else {
-        ALOGW("removeEffect_l() %p cannot promote chain for effect %p", this, effect.get());
-    }
-}
-
-void AudioFlinger::ThreadBase::lockEffectChains_l(
-        Vector< sp<AudioFlinger::EffectChain> >& effectChains)
-{
-    effectChains = mEffectChains;
-    for (size_t i = 0; i < mEffectChains.size(); i++) {
-        mEffectChains[i]->lock();
-    }
-}
-
-void AudioFlinger::ThreadBase::unlockEffectChains(
-        const Vector< sp<AudioFlinger::EffectChain> >& effectChains)
-{
-    for (size_t i = 0; i < effectChains.size(); i++) {
-        effectChains[i]->unlock();
-    }
-}
-
-sp<AudioFlinger::EffectChain> AudioFlinger::ThreadBase::getEffectChain(int sessionId)
-{
-    Mutex::Autolock _l(mLock);
-    return getEffectChain_l(sessionId);
-}
-
-sp<AudioFlinger::EffectChain> AudioFlinger::ThreadBase::getEffectChain_l(int sessionId) const
-{
-    size_t size = mEffectChains.size();
-    for (size_t i = 0; i < size; i++) {
-        if (mEffectChains[i]->sessionId() == sessionId) {
-            return mEffectChains[i];
-        }
-    }
-    return 0;
-}
-
-void AudioFlinger::ThreadBase::setMode(audio_mode_t mode)
-{
-    Mutex::Autolock _l(mLock);
-    size_t size = mEffectChains.size();
-    for (size_t i = 0; i < size; i++) {
-        mEffectChains[i]->setMode_l(mode);
-    }
-}
-
-void AudioFlinger::ThreadBase::disconnectEffect(const sp<EffectModule>& effect,
-                                                    EffectHandle *handle,
-                                                    bool unpinIfLast) {
-
-    Mutex::Autolock _l(mLock);
-    ALOGV("disconnectEffect() %p effect %p", this, effect.get());
-    // delete the effect module if removing last handle on it
-    if (effect->removeHandle(handle) == 0) {
-        if (!effect->isPinned() || unpinIfLast) {
-            removeEffect_l(effect);
-            AudioSystem::unregisterEffect(effect->id());
-        }
-    }
-}
-
-status_t AudioFlinger::PlaybackThread::addEffectChain_l(const sp<EffectChain>& chain)
-{
-    int session = chain->sessionId();
-    int16_t *buffer = mMixBuffer;
-    bool ownsBuffer = false;
-
-    ALOGV("addEffectChain_l() %p on thread %p for session %d", chain.get(), this, session);
-    if (session > 0) {
-        // Only one effect chain can be present in direct output thread and it uses
-        // the mix buffer as input
-        if (mType != DIRECT) {
-            size_t numSamples = mNormalFrameCount * mChannelCount;
-            buffer = new int16_t[numSamples];
-            memset(buffer, 0, numSamples * sizeof(int16_t));
-            ALOGV("addEffectChain_l() creating new input buffer %p session %d", buffer, session);
-            ownsBuffer = true;
-        }
-
-        // Attach all tracks with same session ID to this chain.
-        for (size_t i = 0; i < mTracks.size(); ++i) {
-            sp<Track> track = mTracks[i];
-            if (session == track->sessionId()) {
-                ALOGV("addEffectChain_l() track->setMainBuffer track %p buffer %p", track.get(),
-                        buffer);
-                track->setMainBuffer(buffer);
-                chain->incTrackCnt();
-            }
-        }
-
-        // indicate all active tracks in the chain
-        for (size_t i = 0 ; i < mActiveTracks.size() ; ++i) {
-            sp<Track> track = mActiveTracks[i].promote();
-            if (track == 0) {
-                continue;
-            }
-            if (session == track->sessionId()) {
-                ALOGV("addEffectChain_l() activating track %p on session %d", track.get(), session);
-                chain->incActiveTrackCnt();
-            }
-        }
-    }
-
-    chain->setInBuffer(buffer, ownsBuffer);
-    chain->setOutBuffer(mMixBuffer);
-    // Effect chain for session AUDIO_SESSION_OUTPUT_STAGE is inserted at end of effect
-    // chains list in order to be processed last as it contains output stage effects
-    // Effect chain for session AUDIO_SESSION_OUTPUT_MIX is inserted before
-    // session AUDIO_SESSION_OUTPUT_STAGE to be processed
-    // after track specific effects and before output stage
-    // It is therefore mandatory that AUDIO_SESSION_OUTPUT_MIX == 0 and
-    // that AUDIO_SESSION_OUTPUT_STAGE < AUDIO_SESSION_OUTPUT_MIX
-    // Effect chain for other sessions are inserted at beginning of effect
-    // chains list to be processed before output mix effects. Relative order between other
-    // sessions is not important
-    size_t size = mEffectChains.size();
-    size_t i = 0;
-    for (i = 0; i < size; i++) {
-        if (mEffectChains[i]->sessionId() < session) {
-            break;
-        }
-    }
-    mEffectChains.insertAt(chain, i);
-    checkSuspendOnAddEffectChain_l(chain);
-
-    return NO_ERROR;
-}
-
-size_t AudioFlinger::PlaybackThread::removeEffectChain_l(const sp<EffectChain>& chain)
-{
-    int session = chain->sessionId();
-
-    ALOGV("removeEffectChain_l() %p from thread %p for session %d", chain.get(), this, session);
-
-    for (size_t i = 0; i < mEffectChains.size(); i++) {
-        if (chain == mEffectChains[i]) {
-            mEffectChains.removeAt(i);
-            // detach all active tracks from the chain
-            for (size_t i = 0 ; i < mActiveTracks.size() ; ++i) {
-                sp<Track> track = mActiveTracks[i].promote();
-                if (track == 0) {
-                    continue;
-                }
-                if (session == track->sessionId()) {
-                    ALOGV("removeEffectChain_l(): stopping track on chain %p for session Id: %d",
-                            chain.get(), session);
-                    chain->decActiveTrackCnt();
-                }
-            }
-
-            // detach all tracks with same session ID from this chain
-            for (size_t i = 0; i < mTracks.size(); ++i) {
-                sp<Track> track = mTracks[i];
-                if (session == track->sessionId()) {
-                    track->setMainBuffer(mMixBuffer);
-                    chain->decTrackCnt();
-                }
-            }
-            break;
-        }
-    }
-    return mEffectChains.size();
-}
-
-status_t AudioFlinger::PlaybackThread::attachAuxEffect(
-        const sp<AudioFlinger::PlaybackThread::Track> track, int EffectId)
-{
-    Mutex::Autolock _l(mLock);
-    return attachAuxEffect_l(track, EffectId);
-}
-
-status_t AudioFlinger::PlaybackThread::attachAuxEffect_l(
-        const sp<AudioFlinger::PlaybackThread::Track> track, int EffectId)
-{
-    status_t status = NO_ERROR;
-
-    if (EffectId == 0) {
-        track->setAuxBuffer(0, NULL);
-    } else {
-        // Auxiliary effects are always in audio session AUDIO_SESSION_OUTPUT_MIX
-        sp<EffectModule> effect = getEffect_l(AUDIO_SESSION_OUTPUT_MIX, EffectId);
-        if (effect != 0) {
-            if ((effect->desc().flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
-                track->setAuxBuffer(EffectId, (int32_t *)effect->inBuffer());
-            } else {
-                status = INVALID_OPERATION;
-            }
-        } else {
-            status = BAD_VALUE;
-        }
-    }
-    return status;
-}
-
-void AudioFlinger::PlaybackThread::detachAuxEffect_l(int effectId)
-{
-    for (size_t i = 0; i < mTracks.size(); ++i) {
-        sp<Track> track = mTracks[i];
-        if (track->auxEffectId() == effectId) {
-            attachAuxEffect_l(track, 0);
-        }
-    }
-}
-
-status_t AudioFlinger::RecordThread::addEffectChain_l(const sp<EffectChain>& chain)
-{
-    // only one chain per input thread
-    if (mEffectChains.size() != 0) {
-        return INVALID_OPERATION;
-    }
-    ALOGV("addEffectChain_l() %p on thread %p", chain.get(), this);
-
-    chain->setInBuffer(NULL);
-    chain->setOutBuffer(NULL);
-
-    checkSuspendOnAddEffectChain_l(chain);
-
-    mEffectChains.add(chain);
-
-    return NO_ERROR;
-}
-
-size_t AudioFlinger::RecordThread::removeEffectChain_l(const sp<EffectChain>& chain)
-{
-    ALOGV("removeEffectChain_l() %p from thread %p", chain.get(), this);
-    ALOGW_IF(mEffectChains.size() != 1,
-            "removeEffectChain_l() %p invalid chain size %d on thread %p",
-            chain.get(), mEffectChains.size(), this);
-    if (mEffectChains.size() == 1) {
-        mEffectChains.removeAt(0);
-    }
-    return 0;
-}
-
-// ----------------------------------------------------------------------------
-//  EffectModule implementation
-// ----------------------------------------------------------------------------
-
-#undef LOG_TAG
-#define LOG_TAG "AudioFlinger::EffectModule"
-
-AudioFlinger::EffectModule::EffectModule(ThreadBase *thread,
-                                        const wp<AudioFlinger::EffectChain>& chain,
-                                        effect_descriptor_t *desc,
-                                        int id,
-                                        int sessionId)
-    : mPinned(sessionId > AUDIO_SESSION_OUTPUT_MIX),
-      mThread(thread), mChain(chain), mId(id), mSessionId(sessionId),
-      mDescriptor(*desc),
-      // mConfig is set by configure() and not used before then
-      mEffectInterface(NULL),
-      mStatus(NO_INIT), mState(IDLE),
-      // mMaxDisableWaitCnt is set by configure() and not used before then
-      // mDisableWaitCnt is set by process() and updateState() and not used before then
-      mSuspended(false)
-{
-    ALOGV("Constructor %p", this);
-    int lStatus;
-
-    // create effect engine from effect factory
-    mStatus = EffectCreate(&desc->uuid, sessionId, thread->id(), &mEffectInterface);
-
-    if (mStatus != NO_ERROR) {
-        return;
-    }
-    lStatus = init();
-    if (lStatus < 0) {
-        mStatus = lStatus;
-        goto Error;
-    }
-
-    ALOGV("Constructor success name %s, Interface %p", mDescriptor.name, mEffectInterface);
-    return;
-Error:
-    EffectRelease(mEffectInterface);
-    mEffectInterface = NULL;
-    ALOGV("Constructor Error %d", mStatus);
-}
-
-AudioFlinger::EffectModule::~EffectModule()
-{
-    ALOGV("Destructor %p", this);
-    if (mEffectInterface != NULL) {
-        if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC ||
-                (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) {
-            sp<ThreadBase> thread = mThread.promote();
-            if (thread != 0) {
-                audio_stream_t *stream = thread->stream();
-                if (stream != NULL) {
-                    stream->remove_audio_effect(stream, mEffectInterface);
-                }
-            }
-        }
-        // release effect engine
-        EffectRelease(mEffectInterface);
-    }
-}
-
-status_t AudioFlinger::EffectModule::addHandle(EffectHandle *handle)
-{
-    status_t status;
-
-    Mutex::Autolock _l(mLock);
-    int priority = handle->priority();
-    size_t size = mHandles.size();
-    EffectHandle *controlHandle = NULL;
-    size_t i;
-    for (i = 0; i < size; i++) {
-        EffectHandle *h = mHandles[i];
-        if (h == NULL || h->destroyed_l()) {
-            continue;
-        }
-        // first non destroyed handle is considered in control
-        if (controlHandle == NULL)
-            controlHandle = h;
-        if (h->priority() <= priority) {
-            break;
-        }
-    }
-    // if inserted in first place, move effect control from previous owner to this handle
-    if (i == 0) {
-        bool enabled = false;
-        if (controlHandle != NULL) {
-            enabled = controlHandle->enabled();
-            controlHandle->setControl(false/*hasControl*/, true /*signal*/, enabled /*enabled*/);
-        }
-        handle->setControl(true /*hasControl*/, false /*signal*/, enabled /*enabled*/);
-        status = NO_ERROR;
-    } else {
-        status = ALREADY_EXISTS;
-    }
-    ALOGV("addHandle() %p added handle %p in position %d", this, handle, i);
-    mHandles.insertAt(handle, i);
-    return status;
-}
-
-size_t AudioFlinger::EffectModule::removeHandle(EffectHandle *handle)
-{
-    Mutex::Autolock _l(mLock);
-    size_t size = mHandles.size();
-    size_t i;
-    for (i = 0; i < size; i++) {
-        if (mHandles[i] == handle) {
-            break;
-        }
-    }
-    if (i == size) {
-        return size;
-    }
-    ALOGV("removeHandle() %p removed handle %p in position %d", this, handle, i);
-
-    mHandles.removeAt(i);
-    // if removed from first place, move effect control from this handle to next in line
-    if (i == 0) {
-        EffectHandle *h = controlHandle_l();
-        if (h != NULL) {
-            h->setControl(true /*hasControl*/, true /*signal*/ , handle->enabled() /*enabled*/);
-        }
-    }
-
-    // Prevent calls to process() and other functions on effect interface from now on.
-    // The effect engine will be released by the destructor when the last strong reference on
-    // this object is released which can happen after next process is called.
-    if (mHandles.size() == 0 && !mPinned) {
-        mState = DESTROYED;
-    }
-
-    return mHandles.size();
-}
-
-// must be called with EffectModule::mLock held
-AudioFlinger::EffectHandle *AudioFlinger::EffectModule::controlHandle_l()
-{
-    // the first valid handle in the list has control over the module
-    for (size_t i = 0; i < mHandles.size(); i++) {
-        EffectHandle *h = mHandles[i];
-        if (h != NULL && !h->destroyed_l()) {
-            return h;
-        }
-    }
-
-    return NULL;
-}
-
-size_t AudioFlinger::EffectModule::disconnect(EffectHandle *handle, bool unpinIfLast)
-{
-    ALOGV("disconnect() %p handle %p", this, handle);
-    // keep a strong reference on this EffectModule to avoid calling the
-    // destructor before we exit
-    sp<EffectModule> keep(this);
-    {
-        sp<ThreadBase> thread = mThread.promote();
-        if (thread != 0) {
-            thread->disconnectEffect(keep, handle, unpinIfLast);
-        }
-    }
-    return mHandles.size();
-}
-
-void AudioFlinger::EffectModule::updateState() {
-    Mutex::Autolock _l(mLock);
-
-    switch (mState) {
-    case RESTART:
-        reset_l();
-        // FALL THROUGH
-
-    case STARTING:
-        // clear auxiliary effect input buffer for next accumulation
-        if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
-            memset(mConfig.inputCfg.buffer.raw,
-                   0,
-                   mConfig.inputCfg.buffer.frameCount*sizeof(int32_t));
-        }
-        start_l();
-        mState = ACTIVE;
-        break;
-    case STOPPING:
-        stop_l();
-        mDisableWaitCnt = mMaxDisableWaitCnt;
-        mState = STOPPED;
-        break;
-    case STOPPED:
-        // mDisableWaitCnt is forced to 1 by process() when the engine indicates the end of the
-        // turn off sequence.
-        if (--mDisableWaitCnt == 0) {
-            reset_l();
-            mState = IDLE;
-        }
-        break;
-    default: //IDLE , ACTIVE, DESTROYED
-        break;
-    }
-}
-
-void AudioFlinger::EffectModule::process()
-{
-    Mutex::Autolock _l(mLock);
-
-    if (mState == DESTROYED || mEffectInterface == NULL ||
-            mConfig.inputCfg.buffer.raw == NULL ||
-            mConfig.outputCfg.buffer.raw == NULL) {
-        return;
-    }
-
-    if (isProcessEnabled()) {
-        // do 32 bit to 16 bit conversion for auxiliary effect input buffer
-        if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
-            ditherAndClamp(mConfig.inputCfg.buffer.s32,
-                                        mConfig.inputCfg.buffer.s32,
-                                        mConfig.inputCfg.buffer.frameCount/2);
-        }
-
-        // do the actual processing in the effect engine
-        int ret = (*mEffectInterface)->process(mEffectInterface,
-                                               &mConfig.inputCfg.buffer,
-                                               &mConfig.outputCfg.buffer);
-
-        // force transition to IDLE state when engine is ready
-        if (mState == STOPPED && ret == -ENODATA) {
-            mDisableWaitCnt = 1;
-        }
-
-        // clear auxiliary effect input buffer for next accumulation
-        if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
-            memset(mConfig.inputCfg.buffer.raw, 0,
-                   mConfig.inputCfg.buffer.frameCount*sizeof(int32_t));
-        }
-    } else if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_INSERT &&
-                mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) {
-        // If an insert effect is idle and input buffer is different from output buffer,
-        // accumulate input onto output
-        sp<EffectChain> chain = mChain.promote();
-        if (chain != 0 && chain->activeTrackCnt() != 0) {
-            size_t frameCnt = mConfig.inputCfg.buffer.frameCount * 2;  //always stereo here
-            int16_t *in = mConfig.inputCfg.buffer.s16;
-            int16_t *out = mConfig.outputCfg.buffer.s16;
-            for (size_t i = 0; i < frameCnt; i++) {
-                out[i] = clamp16((int32_t)out[i] + (int32_t)in[i]);
-            }
-        }
-    }
-}
-
-void AudioFlinger::EffectModule::reset_l()
-{
-    if (mEffectInterface == NULL) {
-        return;
-    }
-    (*mEffectInterface)->command(mEffectInterface, EFFECT_CMD_RESET, 0, NULL, 0, NULL);
-}
-
-status_t AudioFlinger::EffectModule::configure()
-{
-    if (mEffectInterface == NULL) {
-        return NO_INIT;
-    }
-
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread == 0) {
-        return DEAD_OBJECT;
-    }
-
-    // TODO: handle configuration of effects replacing track process
-    audio_channel_mask_t channelMask = thread->channelMask();
-
-    if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
-        mConfig.inputCfg.channels = AUDIO_CHANNEL_OUT_MONO;
-    } else {
-        mConfig.inputCfg.channels = channelMask;
-    }
-    mConfig.outputCfg.channels = channelMask;
-    mConfig.inputCfg.format = AUDIO_FORMAT_PCM_16_BIT;
-    mConfig.outputCfg.format = AUDIO_FORMAT_PCM_16_BIT;
-    mConfig.inputCfg.samplingRate = thread->sampleRate();
-    mConfig.outputCfg.samplingRate = mConfig.inputCfg.samplingRate;
-    mConfig.inputCfg.bufferProvider.cookie = NULL;
-    mConfig.inputCfg.bufferProvider.getBuffer = NULL;
-    mConfig.inputCfg.bufferProvider.releaseBuffer = NULL;
-    mConfig.outputCfg.bufferProvider.cookie = NULL;
-    mConfig.outputCfg.bufferProvider.getBuffer = NULL;
-    mConfig.outputCfg.bufferProvider.releaseBuffer = NULL;
-    mConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ;
-    // Insert effect:
-    // - in session AUDIO_SESSION_OUTPUT_MIX or AUDIO_SESSION_OUTPUT_STAGE,
-    // always overwrites output buffer: input buffer == output buffer
-    // - in other sessions:
-    //      last effect in the chain accumulates in output buffer: input buffer != output buffer
-    //      other effect: overwrites output buffer: input buffer == output buffer
-    // Auxiliary effect:
-    //      accumulates in output buffer: input buffer != output buffer
-    // Therefore: accumulate <=> input buffer != output buffer
-    if (mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) {
-        mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_ACCUMULATE;
-    } else {
-        mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_WRITE;
-    }
-    mConfig.inputCfg.mask = EFFECT_CONFIG_ALL;
-    mConfig.outputCfg.mask = EFFECT_CONFIG_ALL;
-    mConfig.inputCfg.buffer.frameCount = thread->frameCount();
-    mConfig.outputCfg.buffer.frameCount = mConfig.inputCfg.buffer.frameCount;
-
-    ALOGV("configure() %p thread %p buffer %p framecount %d",
-            this, thread.get(), mConfig.inputCfg.buffer.raw, mConfig.inputCfg.buffer.frameCount);
-
-    status_t cmdStatus;
-    uint32_t size = sizeof(int);
-    status_t status = (*mEffectInterface)->command(mEffectInterface,
-                                                   EFFECT_CMD_SET_CONFIG,
-                                                   sizeof(effect_config_t),
-                                                   &mConfig,
-                                                   &size,
-                                                   &cmdStatus);
-    if (status == 0) {
-        status = cmdStatus;
-    }
-
-    if (status == 0 &&
-            (memcmp(&mDescriptor.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0)) {
-        uint32_t buf32[sizeof(effect_param_t) / sizeof(uint32_t) + 2];
-        effect_param_t *p = (effect_param_t *)buf32;
-
-        p->psize = sizeof(uint32_t);
-        p->vsize = sizeof(uint32_t);
-        size = sizeof(int);
-        *(int32_t *)p->data = VISUALIZER_PARAM_LATENCY;
-
-        uint32_t latency = 0;
-        PlaybackThread *pbt = thread->mAudioFlinger->checkPlaybackThread_l(thread->mId);
-        if (pbt != NULL) {
-            latency = pbt->latency_l();
-        }
-
-        *((int32_t *)p->data + 1)= latency;
-        (*mEffectInterface)->command(mEffectInterface,
-                                     EFFECT_CMD_SET_PARAM,
-                                     sizeof(effect_param_t) + 8,
-                                     &buf32,
-                                     &size,
-                                     &cmdStatus);
-    }
-
-    mMaxDisableWaitCnt = (MAX_DISABLE_TIME_MS * mConfig.outputCfg.samplingRate) /
-            (1000 * mConfig.outputCfg.buffer.frameCount);
-
-    return status;
-}
-
-status_t AudioFlinger::EffectModule::init()
-{
-    Mutex::Autolock _l(mLock);
-    if (mEffectInterface == NULL) {
-        return NO_INIT;
-    }
-    status_t cmdStatus;
-    uint32_t size = sizeof(status_t);
-    status_t status = (*mEffectInterface)->command(mEffectInterface,
-                                                   EFFECT_CMD_INIT,
-                                                   0,
-                                                   NULL,
-                                                   &size,
-                                                   &cmdStatus);
-    if (status == 0) {
-        status = cmdStatus;
-    }
-    return status;
-}
-
-status_t AudioFlinger::EffectModule::start()
-{
-    Mutex::Autolock _l(mLock);
-    return start_l();
-}
-
-status_t AudioFlinger::EffectModule::start_l()
-{
-    if (mEffectInterface == NULL) {
-        return NO_INIT;
-    }
-    status_t cmdStatus;
-    uint32_t size = sizeof(status_t);
-    status_t status = (*mEffectInterface)->command(mEffectInterface,
-                                                   EFFECT_CMD_ENABLE,
-                                                   0,
-                                                   NULL,
-                                                   &size,
-                                                   &cmdStatus);
-    if (status == 0) {
-        status = cmdStatus;
-    }
-    if (status == 0 &&
-            ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC ||
-             (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC)) {
-        sp<ThreadBase> thread = mThread.promote();
-        if (thread != 0) {
-            audio_stream_t *stream = thread->stream();
-            if (stream != NULL) {
-                stream->add_audio_effect(stream, mEffectInterface);
-            }
-        }
-    }
-    return status;
-}
-
-status_t AudioFlinger::EffectModule::stop()
-{
-    Mutex::Autolock _l(mLock);
-    return stop_l();
-}
-
-status_t AudioFlinger::EffectModule::stop_l()
-{
-    if (mEffectInterface == NULL) {
-        return NO_INIT;
-    }
-    status_t cmdStatus;
-    uint32_t size = sizeof(status_t);
-    status_t status = (*mEffectInterface)->command(mEffectInterface,
-                                                   EFFECT_CMD_DISABLE,
-                                                   0,
-                                                   NULL,
-                                                   &size,
-                                                   &cmdStatus);
-    if (status == 0) {
-        status = cmdStatus;
-    }
-    if (status == 0 &&
-            ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC ||
-             (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC)) {
-        sp<ThreadBase> thread = mThread.promote();
-        if (thread != 0) {
-            audio_stream_t *stream = thread->stream();
-            if (stream != NULL) {
-                stream->remove_audio_effect(stream, mEffectInterface);
-            }
-        }
-    }
-    return status;
-}
-
-status_t AudioFlinger::EffectModule::command(uint32_t cmdCode,
-                                             uint32_t cmdSize,
-                                             void *pCmdData,
-                                             uint32_t *replySize,
-                                             void *pReplyData)
-{
-    Mutex::Autolock _l(mLock);
-    ALOGVV("command(), cmdCode: %d, mEffectInterface: %p", cmdCode, mEffectInterface);
-
-    if (mState == DESTROYED || mEffectInterface == NULL) {
-        return NO_INIT;
-    }
-    status_t status = (*mEffectInterface)->command(mEffectInterface,
-                                                   cmdCode,
-                                                   cmdSize,
-                                                   pCmdData,
-                                                   replySize,
-                                                   pReplyData);
-    if (cmdCode != EFFECT_CMD_GET_PARAM && status == NO_ERROR) {
-        uint32_t size = (replySize == NULL) ? 0 : *replySize;
-        for (size_t i = 1; i < mHandles.size(); i++) {
-            EffectHandle *h = mHandles[i];
-            if (h != NULL && !h->destroyed_l()) {
-                h->commandExecuted(cmdCode, cmdSize, pCmdData, size, pReplyData);
-            }
-        }
-    }
-    return status;
-}
-
-status_t AudioFlinger::EffectModule::setEnabled(bool enabled)
-{
-    Mutex::Autolock _l(mLock);
-    return setEnabled_l(enabled);
-}
-
-// must be called with EffectModule::mLock held
-status_t AudioFlinger::EffectModule::setEnabled_l(bool enabled)
-{
-
-    ALOGV("setEnabled %p enabled %d", this, enabled);
-
-    if (enabled != isEnabled()) {
-        status_t status = AudioSystem::setEffectEnabled(mId, enabled);
-        if (enabled && status != NO_ERROR) {
-            return status;
-        }
-
-        switch (mState) {
-        // going from disabled to enabled
-        case IDLE:
-            mState = STARTING;
-            break;
-        case STOPPED:
-            mState = RESTART;
-            break;
-        case STOPPING:
-            mState = ACTIVE;
-            break;
-
-        // going from enabled to disabled
-        case RESTART:
-            mState = STOPPED;
-            break;
-        case STARTING:
-            mState = IDLE;
-            break;
-        case ACTIVE:
-            mState = STOPPING;
-            break;
-        case DESTROYED:
-            return NO_ERROR; // simply ignore as we are being destroyed
-        }
-        for (size_t i = 1; i < mHandles.size(); i++) {
-            EffectHandle *h = mHandles[i];
-            if (h != NULL && !h->destroyed_l()) {
-                h->setEnabled(enabled);
-            }
-        }
-    }
-    return NO_ERROR;
-}
-
-bool AudioFlinger::EffectModule::isEnabled() const
-{
-    switch (mState) {
-    case RESTART:
-    case STARTING:
-    case ACTIVE:
-        return true;
-    case IDLE:
-    case STOPPING:
-    case STOPPED:
-    case DESTROYED:
-    default:
-        return false;
-    }
-}
-
-bool AudioFlinger::EffectModule::isProcessEnabled() const
-{
-    switch (mState) {
-    case RESTART:
-    case ACTIVE:
-    case STOPPING:
-    case STOPPED:
-        return true;
-    case IDLE:
-    case STARTING:
-    case DESTROYED:
-    default:
-        return false;
-    }
-}
-
-status_t AudioFlinger::EffectModule::setVolume(uint32_t *left, uint32_t *right, bool controller)
-{
-    Mutex::Autolock _l(mLock);
-    status_t status = NO_ERROR;
-
-    // Send volume indication if EFFECT_FLAG_VOLUME_IND is set and read back altered volume
-    // if controller flag is set (Note that controller == TRUE => EFFECT_FLAG_VOLUME_CTRL set)
-    if (isProcessEnabled() &&
-            ((mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL ||
-            (mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_IND)) {
-        status_t cmdStatus;
-        uint32_t volume[2];
-        uint32_t *pVolume = NULL;
-        uint32_t size = sizeof(volume);
-        volume[0] = *left;
-        volume[1] = *right;
-        if (controller) {
-            pVolume = volume;
-        }
-        status = (*mEffectInterface)->command(mEffectInterface,
-                                              EFFECT_CMD_SET_VOLUME,
-                                              size,
-                                              volume,
-                                              &size,
-                                              pVolume);
-        if (controller && status == NO_ERROR && size == sizeof(volume)) {
-            *left = volume[0];
-            *right = volume[1];
-        }
-    }
-    return status;
-}
-
-status_t AudioFlinger::EffectModule::setDevice(audio_devices_t device)
-{
-    if (device == AUDIO_DEVICE_NONE) {
-        return NO_ERROR;
-    }
-
-    Mutex::Autolock _l(mLock);
-    status_t status = NO_ERROR;
-    if (device && (mDescriptor.flags & EFFECT_FLAG_DEVICE_MASK) == EFFECT_FLAG_DEVICE_IND) {
-        status_t cmdStatus;
-        uint32_t size = sizeof(status_t);
-        uint32_t cmd = audio_is_output_devices(device) ? EFFECT_CMD_SET_DEVICE :
-                            EFFECT_CMD_SET_INPUT_DEVICE;
-        status = (*mEffectInterface)->command(mEffectInterface,
-                                              cmd,
-                                              sizeof(uint32_t),
-                                              &device,
-                                              &size,
-                                              &cmdStatus);
-    }
-    return status;
-}
-
-status_t AudioFlinger::EffectModule::setMode(audio_mode_t mode)
-{
-    Mutex::Autolock _l(mLock);
-    status_t status = NO_ERROR;
-    if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_MODE_MASK) == EFFECT_FLAG_AUDIO_MODE_IND) {
-        status_t cmdStatus;
-        uint32_t size = sizeof(status_t);
-        status = (*mEffectInterface)->command(mEffectInterface,
-                                              EFFECT_CMD_SET_AUDIO_MODE,
-                                              sizeof(audio_mode_t),
-                                              &mode,
-                                              &size,
-                                              &cmdStatus);
-        if (status == NO_ERROR) {
-            status = cmdStatus;
-        }
-    }
-    return status;
-}
-
-status_t AudioFlinger::EffectModule::setAudioSource(audio_source_t source)
-{
-    Mutex::Autolock _l(mLock);
-    status_t status = NO_ERROR;
-    if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_SOURCE_MASK) == EFFECT_FLAG_AUDIO_SOURCE_IND) {
-        uint32_t size = 0;
-        status = (*mEffectInterface)->command(mEffectInterface,
-                                              EFFECT_CMD_SET_AUDIO_SOURCE,
-                                              sizeof(audio_source_t),
-                                              &source,
-                                              &size,
-                                              NULL);
-    }
-    return status;
-}
-
-void AudioFlinger::EffectModule::setSuspended(bool suspended)
-{
-    Mutex::Autolock _l(mLock);
-    mSuspended = suspended;
-}
-
-bool AudioFlinger::EffectModule::suspended() const
-{
-    Mutex::Autolock _l(mLock);
-    return mSuspended;
-}
-
-bool AudioFlinger::EffectModule::purgeHandles()
-{
-    bool enabled = false;
-    Mutex::Autolock _l(mLock);
-    for (size_t i = 0; i < mHandles.size(); i++) {
-        EffectHandle *handle = mHandles[i];
-        if (handle != NULL && !handle->destroyed_l()) {
-            handle->effect().clear();
-            if (handle->hasControl()) {
-                enabled = handle->enabled();
-            }
-        }
-    }
-    return enabled;
-}
-
-void AudioFlinger::EffectModule::dump(int fd, const Vector<String16>& args)
-{
-    const size_t SIZE = 256;
-    char buffer[SIZE];
-    String8 result;
-
-    snprintf(buffer, SIZE, "\tEffect ID %d:\n", mId);
-    result.append(buffer);
-
-    bool locked = tryLock(mLock);
-    // failed to lock - AudioFlinger is probably deadlocked
-    if (!locked) {
-        result.append("\t\tCould not lock Fx mutex:\n");
-    }
-
-    result.append("\t\tSession Status State Engine:\n");
-    snprintf(buffer, SIZE, "\t\t%05d   %03d    %03d   0x%08x\n",
-            mSessionId, mStatus, mState, (uint32_t)mEffectInterface);
-    result.append(buffer);
-
-    result.append("\t\tDescriptor:\n");
-    snprintf(buffer, SIZE, "\t\t- UUID: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n",
-            mDescriptor.uuid.timeLow, mDescriptor.uuid.timeMid, mDescriptor.uuid.timeHiAndVersion,
-            mDescriptor.uuid.clockSeq, mDescriptor.uuid.node[0], mDescriptor.uuid.node[1],
-                    mDescriptor.uuid.node[2],
-            mDescriptor.uuid.node[3],mDescriptor.uuid.node[4],mDescriptor.uuid.node[5]);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "\t\t- TYPE: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n",
-                mDescriptor.type.timeLow, mDescriptor.type.timeMid,
-                    mDescriptor.type.timeHiAndVersion,
-                mDescriptor.type.clockSeq, mDescriptor.type.node[0], mDescriptor.type.node[1],
-                    mDescriptor.type.node[2],
-                mDescriptor.type.node[3],mDescriptor.type.node[4],mDescriptor.type.node[5]);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "\t\t- apiVersion: %08X\n\t\t- flags: %08X\n",
-            mDescriptor.apiVersion,
-            mDescriptor.flags);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "\t\t- name: %s\n",
-            mDescriptor.name);
-    result.append(buffer);
-    snprintf(buffer, SIZE, "\t\t- implementor: %s\n",
-            mDescriptor.implementor);
-    result.append(buffer);
-
-    result.append("\t\t- Input configuration:\n");
-    result.append("\t\t\tBuffer     Frames  Smp rate Channels Format\n");
-    snprintf(buffer, SIZE, "\t\t\t0x%08x %05d   %05d    %08x %d\n",
-            (uint32_t)mConfig.inputCfg.buffer.raw,
-            mConfig.inputCfg.buffer.frameCount,
-            mConfig.inputCfg.samplingRate,
-            mConfig.inputCfg.channels,
-            mConfig.inputCfg.format);
-    result.append(buffer);
-
-    result.append("\t\t- Output configuration:\n");
-    result.append("\t\t\tBuffer     Frames  Smp rate Channels Format\n");
-    snprintf(buffer, SIZE, "\t\t\t0x%08x %05d   %05d    %08x %d\n",
-            (uint32_t)mConfig.outputCfg.buffer.raw,
-            mConfig.outputCfg.buffer.frameCount,
-            mConfig.outputCfg.samplingRate,
-            mConfig.outputCfg.channels,
-            mConfig.outputCfg.format);
-    result.append(buffer);
-
-    snprintf(buffer, SIZE, "\t\t%d Clients:\n", mHandles.size());
-    result.append(buffer);
-    result.append("\t\t\tPid   Priority Ctrl Locked client server\n");
-    for (size_t i = 0; i < mHandles.size(); ++i) {
-        EffectHandle *handle = mHandles[i];
-        if (handle != NULL && !handle->destroyed_l()) {
-            handle->dump(buffer, SIZE);
-            result.append(buffer);
-        }
-    }
-
-    result.append("\n");
-
-    write(fd, result.string(), result.length());
-
-    if (locked) {
-        mLock.unlock();
-    }
-}
-
-// ----------------------------------------------------------------------------
-//  EffectHandle implementation
-// ----------------------------------------------------------------------------
-
-#undef LOG_TAG
-#define LOG_TAG "AudioFlinger::EffectHandle"
-
-AudioFlinger::EffectHandle::EffectHandle(const sp<EffectModule>& effect,
-                                        const sp<AudioFlinger::Client>& client,
-                                        const sp<IEffectClient>& effectClient,
-                                        int32_t priority)
-    : BnEffect(),
-    mEffect(effect), mEffectClient(effectClient), mClient(client), mCblk(NULL),
-    mPriority(priority), mHasControl(false), mEnabled(false), mDestroyed(false)
-{
-    ALOGV("constructor %p", this);
-
-    if (client == 0) {
-        return;
-    }
-    int bufOffset = ((sizeof(effect_param_cblk_t) - 1) / sizeof(int) + 1) * sizeof(int);
-    mCblkMemory = client->heap()->allocate(EFFECT_PARAM_BUFFER_SIZE + bufOffset);
-    if (mCblkMemory != 0) {
-        mCblk = static_cast<effect_param_cblk_t *>(mCblkMemory->pointer());
-
-        if (mCblk != NULL) {
-            new(mCblk) effect_param_cblk_t();
-            mBuffer = (uint8_t *)mCblk + bufOffset;
-        }
-    } else {
-        ALOGE("not enough memory for Effect size=%u", EFFECT_PARAM_BUFFER_SIZE +
-                sizeof(effect_param_cblk_t));
-        return;
-    }
-}
-
-AudioFlinger::EffectHandle::~EffectHandle()
-{
-    ALOGV("Destructor %p", this);
-
-    if (mEffect == 0) {
-        mDestroyed = true;
-        return;
-    }
-    mEffect->lock();
-    mDestroyed = true;
-    mEffect->unlock();
-    disconnect(false);
-}
-
-status_t AudioFlinger::EffectHandle::enable()
-{
-    ALOGV("enable %p", this);
-    if (!mHasControl) {
-        return INVALID_OPERATION;
-    }
-    if (mEffect == 0) {
-        return DEAD_OBJECT;
-    }
-
-    if (mEnabled) {
-        return NO_ERROR;
-    }
-
-    mEnabled = true;
-
-    sp<ThreadBase> thread = mEffect->thread().promote();
-    if (thread != 0) {
-        thread->checkSuspendOnEffectEnabled(mEffect, true, mEffect->sessionId());
-    }
-
-    // checkSuspendOnEffectEnabled() can suspend this same effect when enabled
-    if (mEffect->suspended()) {
-        return NO_ERROR;
-    }
-
-    status_t status = mEffect->setEnabled(true);
-    if (status != NO_ERROR) {
-        if (thread != 0) {
-            thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId());
-        }
-        mEnabled = false;
-    }
-    return status;
-}
-
-status_t AudioFlinger::EffectHandle::disable()
-{
-    ALOGV("disable %p", this);
-    if (!mHasControl) {
-        return INVALID_OPERATION;
-    }
-    if (mEffect == 0) {
-        return DEAD_OBJECT;
-    }
-
-    if (!mEnabled) {
-        return NO_ERROR;
-    }
-    mEnabled = false;
-
-    if (mEffect->suspended()) {
-        return NO_ERROR;
-    }
-
-    status_t status = mEffect->setEnabled(false);
-
-    sp<ThreadBase> thread = mEffect->thread().promote();
-    if (thread != 0) {
-        thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId());
-    }
-
-    return status;
-}
-
-void AudioFlinger::EffectHandle::disconnect()
-{
-    disconnect(true);
-}
-
-void AudioFlinger::EffectHandle::disconnect(bool unpinIfLast)
-{
-    ALOGV("disconnect(%s)", unpinIfLast ? "true" : "false");
-    if (mEffect == 0) {
-        return;
-    }
-    // restore suspended effects if the disconnected handle was enabled and the last one.
-    if ((mEffect->disconnect(this, unpinIfLast) == 0) && mEnabled) {
-        sp<ThreadBase> thread = mEffect->thread().promote();
-        if (thread != 0) {
-            thread->checkSuspendOnEffectEnabled(mEffect, false, mEffect->sessionId());
-        }
-    }
-
-    // release sp on module => module destructor can be called now
-    mEffect.clear();
-    if (mClient != 0) {
-        if (mCblk != NULL) {
-            // unlike ~TrackBase(), mCblk is never a local new, so don't delete
-            mCblk->~effect_param_cblk_t();   // destroy our shared-structure.
-        }
-        mCblkMemory.clear();    // free the shared memory before releasing the heap it belongs to
-        // Client destructor must run with AudioFlinger mutex locked
-        Mutex::Autolock _l(mClient->audioFlinger()->mLock);
-        mClient.clear();
-    }
-}
-
-status_t AudioFlinger::EffectHandle::command(uint32_t cmdCode,
-                                             uint32_t cmdSize,
-                                             void *pCmdData,
-                                             uint32_t *replySize,
-                                             void *pReplyData)
-{
-    ALOGVV("command(), cmdCode: %d, mHasControl: %d, mEffect: %p",
-            cmdCode, mHasControl, (mEffect == 0) ? 0 : mEffect.get());
-
-    // only get parameter command is permitted for applications not controlling the effect
-    if (!mHasControl && cmdCode != EFFECT_CMD_GET_PARAM) {
-        return INVALID_OPERATION;
-    }
-    if (mEffect == 0) {
-        return DEAD_OBJECT;
-    }
-    if (mClient == 0) {
-        return INVALID_OPERATION;
-    }
-
-    // handle commands that are not forwarded transparently to effect engine
-    if (cmdCode == EFFECT_CMD_SET_PARAM_COMMIT) {
-        // No need to trylock() here as this function is executed in the binder thread serving a
-        // particular client process:  no risk to block the whole media server process or mixer
-        // threads if we are stuck here
-        Mutex::Autolock _l(mCblk->lock);
-        if (mCblk->clientIndex > EFFECT_PARAM_BUFFER_SIZE ||
-            mCblk->serverIndex > EFFECT_PARAM_BUFFER_SIZE) {
-            mCblk->serverIndex = 0;
-            mCblk->clientIndex = 0;
-            return BAD_VALUE;
-        }
-        status_t status = NO_ERROR;
-        while (mCblk->serverIndex < mCblk->clientIndex) {
-            int reply;
-            uint32_t rsize = sizeof(int);
-            int *p = (int *)(mBuffer + mCblk->serverIndex);
-            int size = *p++;
-            if (((uint8_t *)p + size) > mBuffer + mCblk->clientIndex) {
-                ALOGW("command(): invalid parameter block size");
-                break;
-            }
-            effect_param_t *param = (effect_param_t *)p;
-            if (param->psize == 0 || param->vsize == 0) {
-                ALOGW("command(): null parameter or value size");
-                mCblk->serverIndex += size;
-                continue;
-            }
-            uint32_t psize = sizeof(effect_param_t) +
-                             ((param->psize - 1) / sizeof(int) + 1) * sizeof(int) +
-                             param->vsize;
-            status_t ret = mEffect->command(EFFECT_CMD_SET_PARAM,
-                                            psize,
-                                            p,
-                                            &rsize,
-                                            &reply);
-            // stop at first error encountered
-            if (ret != NO_ERROR) {
-                status = ret;
-                *(int *)pReplyData = reply;
-                break;
-            } else if (reply != NO_ERROR) {
-                *(int *)pReplyData = reply;
-                break;
-            }
-            mCblk->serverIndex += size;
-        }
-        mCblk->serverIndex = 0;
-        mCblk->clientIndex = 0;
-        return status;
-    } else if (cmdCode == EFFECT_CMD_ENABLE) {
-        *(int *)pReplyData = NO_ERROR;
-        return enable();
-    } else if (cmdCode == EFFECT_CMD_DISABLE) {
-        *(int *)pReplyData = NO_ERROR;
-        return disable();
-    }
-
-    return mEffect->command(cmdCode, cmdSize, pCmdData, replySize, pReplyData);
-}
-
-void AudioFlinger::EffectHandle::setControl(bool hasControl, bool signal, bool enabled)
-{
-    ALOGV("setControl %p control %d", this, hasControl);
-
-    mHasControl = hasControl;
-    mEnabled = enabled;
-
-    if (signal && mEffectClient != 0) {
-        mEffectClient->controlStatusChanged(hasControl);
-    }
-}
-
-void AudioFlinger::EffectHandle::commandExecuted(uint32_t cmdCode,
-                                                 uint32_t cmdSize,
-                                                 void *pCmdData,
-                                                 uint32_t replySize,
-                                                 void *pReplyData)
-{
-    if (mEffectClient != 0) {
-        mEffectClient->commandExecuted(cmdCode, cmdSize, pCmdData, replySize, pReplyData);
-    }
-}
-
-
-
-void AudioFlinger::EffectHandle::setEnabled(bool enabled)
-{
-    if (mEffectClient != 0) {
-        mEffectClient->enableStatusChanged(enabled);
-    }
-}
-
-status_t AudioFlinger::EffectHandle::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    return BnEffect::onTransact(code, data, reply, flags);
-}
-
-
-void AudioFlinger::EffectHandle::dump(char* buffer, size_t size)
-{
-    bool locked = mCblk != NULL && tryLock(mCblk->lock);
-
-    snprintf(buffer, size, "\t\t\t%05d %05d    %01u    %01u      %05u  %05u\n",
-            (mClient == 0) ? getpid_cached : mClient->pid(),
-            mPriority,
-            mHasControl,
-            !locked,
-            mCblk ? mCblk->clientIndex : 0,
-            mCblk ? mCblk->serverIndex : 0
-            );
-
-    if (locked) {
-        mCblk->lock.unlock();
-    }
-}
-
-#undef LOG_TAG
-#define LOG_TAG "AudioFlinger::EffectChain"
-
-AudioFlinger::EffectChain::EffectChain(ThreadBase *thread,
-                                        int sessionId)
-    : mThread(thread), mSessionId(sessionId), mActiveTrackCnt(0), mTrackCnt(0), mTailBufferCount(0),
-      mOwnInBuffer(false), mVolumeCtrlIdx(-1), mLeftVolume(UINT_MAX), mRightVolume(UINT_MAX),
-      mNewLeftVolume(UINT_MAX), mNewRightVolume(UINT_MAX)
-{
-    mStrategy = AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC);
-    if (thread == NULL) {
-        return;
-    }
-    mMaxTailBuffers = ((kProcessTailDurationMs * thread->sampleRate()) / 1000) /
-                                    thread->frameCount();
-}
-
-AudioFlinger::EffectChain::~EffectChain()
-{
-    if (mOwnInBuffer) {
-        delete mInBuffer;
-    }
-
-}
-
-// getEffectFromDesc_l() must be called with ThreadBase::mLock held
-sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromDesc_l(
-        effect_descriptor_t *descriptor)
-{
-    size_t size = mEffects.size();
-
-    for (size_t i = 0; i < size; i++) {
-        if (memcmp(&mEffects[i]->desc().uuid, &descriptor->uuid, sizeof(effect_uuid_t)) == 0) {
-            return mEffects[i];
-        }
-    }
-    return 0;
-}
-
-// getEffectFromId_l() must be called with ThreadBase::mLock held
-sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromId_l(int id)
-{
-    size_t size = mEffects.size();
-
-    for (size_t i = 0; i < size; i++) {
-        // by convention, return first effect if id provided is 0 (0 is never a valid id)
-        if (id == 0 || mEffects[i]->id() == id) {
-            return mEffects[i];
-        }
-    }
-    return 0;
-}
-
-// getEffectFromType_l() must be called with ThreadBase::mLock held
-sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectFromType_l(
-        const effect_uuid_t *type)
-{
-    size_t size = mEffects.size();
-
-    for (size_t i = 0; i < size; i++) {
-        if (memcmp(&mEffects[i]->desc().type, type, sizeof(effect_uuid_t)) == 0) {
-            return mEffects[i];
-        }
-    }
-    return 0;
-}
-
-void AudioFlinger::EffectChain::clearInputBuffer()
-{
-    Mutex::Autolock _l(mLock);
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread == 0) {
-        ALOGW("clearInputBuffer(): cannot promote mixer thread");
-        return;
-    }
-    clearInputBuffer_l(thread);
-}
-
-// Must be called with EffectChain::mLock locked
-void AudioFlinger::EffectChain::clearInputBuffer_l(sp<ThreadBase> thread)
-{
-    size_t numSamples = thread->frameCount() * thread->channelCount();
-    memset(mInBuffer, 0, numSamples * sizeof(int16_t));
-
-}
-
-// Must be called with EffectChain::mLock locked
-void AudioFlinger::EffectChain::process_l()
-{
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread == 0) {
-        ALOGW("process_l(): cannot promote mixer thread");
-        return;
-    }
-    bool isGlobalSession = (mSessionId == AUDIO_SESSION_OUTPUT_MIX) ||
-            (mSessionId == AUDIO_SESSION_OUTPUT_STAGE);
-    // always process effects unless no more tracks are on the session and the effect tail
-    // has been rendered
-    bool doProcess = true;
-    if (!isGlobalSession) {
-        bool tracksOnSession = (trackCnt() != 0);
-
-        if (!tracksOnSession && mTailBufferCount == 0) {
-            doProcess = false;
-        }
-
-        if (activeTrackCnt() == 0) {
-            // if no track is active and the effect tail has not been rendered,
-            // the input buffer must be cleared here as the mixer process will not do it
-            if (tracksOnSession || mTailBufferCount > 0) {
-                clearInputBuffer_l(thread);
-                if (mTailBufferCount > 0) {
-                    mTailBufferCount--;
-                }
-            }
-        }
-    }
-
-    size_t size = mEffects.size();
-    if (doProcess) {
-        for (size_t i = 0; i < size; i++) {
-            mEffects[i]->process();
-        }
-    }
-    for (size_t i = 0; i < size; i++) {
-        mEffects[i]->updateState();
-    }
-}
-
-// addEffect_l() must be called with PlaybackThread::mLock held
-status_t AudioFlinger::EffectChain::addEffect_l(const sp<EffectModule>& effect)
-{
-    effect_descriptor_t desc = effect->desc();
-    uint32_t insertPref = desc.flags & EFFECT_FLAG_INSERT_MASK;
-
-    Mutex::Autolock _l(mLock);
-    effect->setChain(this);
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread == 0) {
-        return NO_INIT;
-    }
-    effect->setThread(thread);
-
-    if ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
-        // Auxiliary effects are inserted at the beginning of mEffects vector as
-        // they are processed first and accumulated in chain input buffer
-        mEffects.insertAt(effect, 0);
-
-        // the input buffer for auxiliary effect contains mono samples in
-        // 32 bit format. This is to avoid saturation in AudoMixer
-        // accumulation stage. Saturation is done in EffectModule::process() before
-        // calling the process in effect engine
-        size_t numSamples = thread->frameCount();
-        int32_t *buffer = new int32_t[numSamples];
-        memset(buffer, 0, numSamples * sizeof(int32_t));
-        effect->setInBuffer((int16_t *)buffer);
-        // auxiliary effects output samples to chain input buffer for further processing
-        // by insert effects
-        effect->setOutBuffer(mInBuffer);
-    } else {
-        // Insert effects are inserted at the end of mEffects vector as they are processed
-        //  after track and auxiliary effects.
-        // Insert effect order as a function of indicated preference:
-        //  if EFFECT_FLAG_INSERT_EXCLUSIVE, insert in first position or reject if
-        //  another effect is present
-        //  else if EFFECT_FLAG_INSERT_FIRST, insert in first position or after the
-        //  last effect claiming first position
-        //  else if EFFECT_FLAG_INSERT_LAST, insert in last position or before the
-        //  first effect claiming last position
-        //  else if EFFECT_FLAG_INSERT_ANY insert after first or before last
-        // Reject insertion if an effect with EFFECT_FLAG_INSERT_EXCLUSIVE is
-        // already present
-
-        size_t size = mEffects.size();
-        size_t idx_insert = size;
-        ssize_t idx_insert_first = -1;
-        ssize_t idx_insert_last = -1;
-
-        for (size_t i = 0; i < size; i++) {
-            effect_descriptor_t d = mEffects[i]->desc();
-            uint32_t iMode = d.flags & EFFECT_FLAG_TYPE_MASK;
-            uint32_t iPref = d.flags & EFFECT_FLAG_INSERT_MASK;
-            if (iMode == EFFECT_FLAG_TYPE_INSERT) {
-                // check invalid effect chaining combinations
-                if (insertPref == EFFECT_FLAG_INSERT_EXCLUSIVE ||
-                    iPref == EFFECT_FLAG_INSERT_EXCLUSIVE) {
-                    ALOGW("addEffect_l() could not insert effect %s: exclusive conflict with %s",
-                            desc.name, d.name);
-                    return INVALID_OPERATION;
-                }
-                // remember position of first insert effect and by default
-                // select this as insert position for new effect
-                if (idx_insert == size) {
-                    idx_insert = i;
-                }
-                // remember position of last insert effect claiming
-                // first position
-                if (iPref == EFFECT_FLAG_INSERT_FIRST) {
-                    idx_insert_first = i;
-                }
-                // remember position of first insert effect claiming
-                // last position
-                if (iPref == EFFECT_FLAG_INSERT_LAST &&
-                    idx_insert_last == -1) {
-                    idx_insert_last = i;
-                }
-            }
-        }
-
-        // modify idx_insert from first position if needed
-        if (insertPref == EFFECT_FLAG_INSERT_LAST) {
-            if (idx_insert_last != -1) {
-                idx_insert = idx_insert_last;
-            } else {
-                idx_insert = size;
-            }
-        } else {
-            if (idx_insert_first != -1) {
-                idx_insert = idx_insert_first + 1;
-            }
-        }
-
-        // always read samples from chain input buffer
-        effect->setInBuffer(mInBuffer);
-
-        // if last effect in the chain, output samples to chain
-        // output buffer, otherwise to chain input buffer
-        if (idx_insert == size) {
-            if (idx_insert != 0) {
-                mEffects[idx_insert-1]->setOutBuffer(mInBuffer);
-                mEffects[idx_insert-1]->configure();
-            }
-            effect->setOutBuffer(mOutBuffer);
-        } else {
-            effect->setOutBuffer(mInBuffer);
-        }
-        mEffects.insertAt(effect, idx_insert);
-
-        ALOGV("addEffect_l() effect %p, added in chain %p at rank %d", effect.get(), this,
-                idx_insert);
-    }
-    effect->configure();
-    return NO_ERROR;
-}
-
-// removeEffect_l() must be called with PlaybackThread::mLock held
-size_t AudioFlinger::EffectChain::removeEffect_l(const sp<EffectModule>& effect)
-{
-    Mutex::Autolock _l(mLock);
-    size_t size = mEffects.size();
-    uint32_t type = effect->desc().flags & EFFECT_FLAG_TYPE_MASK;
-
-    for (size_t i = 0; i < size; i++) {
-        if (effect == mEffects[i]) {
-            // calling stop here will remove pre-processing effect from the audio HAL.
-            // This is safe as we hold the EffectChain mutex which guarantees that we are not in
-            // the middle of a read from audio HAL
-            if (mEffects[i]->state() == EffectModule::ACTIVE ||
-                    mEffects[i]->state() == EffectModule::STOPPING) {
-                mEffects[i]->stop();
-            }
-            if (type == EFFECT_FLAG_TYPE_AUXILIARY) {
-                delete[] effect->inBuffer();
-            } else {
-                if (i == size - 1 && i != 0) {
-                    mEffects[i - 1]->setOutBuffer(mOutBuffer);
-                    mEffects[i - 1]->configure();
-                }
-            }
-            mEffects.removeAt(i);
-            ALOGV("removeEffect_l() effect %p, removed from chain %p at rank %d", effect.get(),
-                    this, i);
-            break;
-        }
-    }
-
-    return mEffects.size();
-}
-
-// setDevice_l() must be called with PlaybackThread::mLock held
-void AudioFlinger::EffectChain::setDevice_l(audio_devices_t device)
-{
-    size_t size = mEffects.size();
-    for (size_t i = 0; i < size; i++) {
-        mEffects[i]->setDevice(device);
-    }
-}
-
-// setMode_l() must be called with PlaybackThread::mLock held
-void AudioFlinger::EffectChain::setMode_l(audio_mode_t mode)
-{
-    size_t size = mEffects.size();
-    for (size_t i = 0; i < size; i++) {
-        mEffects[i]->setMode(mode);
-    }
-}
-
-// setAudioSource_l() must be called with PlaybackThread::mLock held
-void AudioFlinger::EffectChain::setAudioSource_l(audio_source_t source)
-{
-    size_t size = mEffects.size();
-    for (size_t i = 0; i < size; i++) {
-        mEffects[i]->setAudioSource(source);
-    }
-}
-
-// setVolume_l() must be called with PlaybackThread::mLock held
-bool AudioFlinger::EffectChain::setVolume_l(uint32_t *left, uint32_t *right)
-{
-    uint32_t newLeft = *left;
-    uint32_t newRight = *right;
-    bool hasControl = false;
-    int ctrlIdx = -1;
-    size_t size = mEffects.size();
-
-    // first update volume controller
-    for (size_t i = size; i > 0; i--) {
-        if (mEffects[i - 1]->isProcessEnabled() &&
-            (mEffects[i - 1]->desc().flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL) {
-            ctrlIdx = i - 1;
-            hasControl = true;
-            break;
-        }
-    }
-
-    if (ctrlIdx == mVolumeCtrlIdx && *left == mLeftVolume && *right == mRightVolume) {
-        if (hasControl) {
-            *left = mNewLeftVolume;
-            *right = mNewRightVolume;
-        }
-        return hasControl;
-    }
-
-    mVolumeCtrlIdx = ctrlIdx;
-    mLeftVolume = newLeft;
-    mRightVolume = newRight;
-
-    // second get volume update from volume controller
-    if (ctrlIdx >= 0) {
-        mEffects[ctrlIdx]->setVolume(&newLeft, &newRight, true);
-        mNewLeftVolume = newLeft;
-        mNewRightVolume = newRight;
-    }
-    // then indicate volume to all other effects in chain.
-    // Pass altered volume to effects before volume controller
-    // and requested volume to effects after controller
-    uint32_t lVol = newLeft;
-    uint32_t rVol = newRight;
-
-    for (size_t i = 0; i < size; i++) {
-        if ((int)i == ctrlIdx) {
-            continue;
-        }
-        // this also works for ctrlIdx == -1 when there is no volume controller
-        if ((int)i > ctrlIdx) {
-            lVol = *left;
-            rVol = *right;
-        }
-        mEffects[i]->setVolume(&lVol, &rVol, false);
-    }
-    *left = newLeft;
-    *right = newRight;
-
-    return hasControl;
-}
-
-void AudioFlinger::EffectChain::dump(int fd, const Vector<String16>& args)
-{
-    const size_t SIZE = 256;
-    char buffer[SIZE];
-    String8 result;
-
-    snprintf(buffer, SIZE, "Effects for session %d:\n", mSessionId);
-    result.append(buffer);
-
-    bool locked = tryLock(mLock);
-    // failed to lock - AudioFlinger is probably deadlocked
-    if (!locked) {
-        result.append("\tCould not lock mutex:\n");
-    }
-
-    result.append("\tNum fx In buffer   Out buffer   Active tracks:\n");
-    snprintf(buffer, SIZE, "\t%02d     0x%08x  0x%08x   %d\n",
-            mEffects.size(),
-            (uint32_t)mInBuffer,
-            (uint32_t)mOutBuffer,
-            mActiveTrackCnt);
-    result.append(buffer);
-    write(fd, result.string(), result.size());
-
-    for (size_t i = 0; i < mEffects.size(); ++i) {
-        sp<EffectModule> effect = mEffects[i];
-        if (effect != 0) {
-            effect->dump(fd, args);
-        }
-    }
-
-    if (locked) {
-        mLock.unlock();
-    }
-}
-
-// must be called with ThreadBase::mLock held
-void AudioFlinger::EffectChain::setEffectSuspended_l(
-        const effect_uuid_t *type, bool suspend)
-{
-    sp<SuspendedEffectDesc> desc;
-    // use effect type UUID timelow as key as there is no real risk of identical
-    // timeLow fields among effect type UUIDs.
-    ssize_t index = mSuspendedEffects.indexOfKey(type->timeLow);
-    if (suspend) {
-        if (index >= 0) {
-            desc = mSuspendedEffects.valueAt(index);
-        } else {
-            desc = new SuspendedEffectDesc();
-            desc->mType = *type;
-            mSuspendedEffects.add(type->timeLow, desc);
-            ALOGV("setEffectSuspended_l() add entry for %08x", type->timeLow);
-        }
-        if (desc->mRefCount++ == 0) {
-            sp<EffectModule> effect = getEffectIfEnabled(type);
-            if (effect != 0) {
-                desc->mEffect = effect;
-                effect->setSuspended(true);
-                effect->setEnabled(false);
-            }
-        }
-    } else {
-        if (index < 0) {
-            return;
-        }
-        desc = mSuspendedEffects.valueAt(index);
-        if (desc->mRefCount <= 0) {
-            ALOGW("setEffectSuspended_l() restore refcount should not be 0 %d", desc->mRefCount);
-            desc->mRefCount = 1;
-        }
-        if (--desc->mRefCount == 0) {
-            ALOGV("setEffectSuspended_l() remove entry for %08x", mSuspendedEffects.keyAt(index));
-            if (desc->mEffect != 0) {
-                sp<EffectModule> effect = desc->mEffect.promote();
-                if (effect != 0) {
-                    effect->setSuspended(false);
-                    effect->lock();
-                    EffectHandle *handle = effect->controlHandle_l();
-                    if (handle != NULL && !handle->destroyed_l()) {
-                        effect->setEnabled_l(handle->enabled());
+    NBAIO_Source *teeSource = source.get();
+    if (teeSource != NULL) {
+        char teeTime[16];
+        struct timeval tv;
+        gettimeofday(&tv, NULL);
+        struct tm tm;
+        localtime_r(&tv.tv_sec, &tm);
+        strftime(teeTime, sizeof(teeTime), "%T", &tm);
+        char teePath[64];
+        sprintf(teePath, "/data/misc/media/%s_%d.wav", teeTime, id);
+        int teeFd = open(teePath, O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR);
+        if (teeFd >= 0) {
+            char wavHeader[44];
+            memcpy(wavHeader,
+                "RIFF\0\0\0\0WAVEfmt \20\0\0\0\1\0\2\0\104\254\0\0\0\0\0\0\4\0\20\0data\0\0\0\0",
+                sizeof(wavHeader));
+            NBAIO_Format format = teeSource->format();
+            unsigned channelCount = Format_channelCount(format);
+            ALOG_ASSERT(channelCount <= FCC_2);
+            uint32_t sampleRate = Format_sampleRate(format);
+            wavHeader[22] = channelCount;       // number of channels
+            wavHeader[24] = sampleRate;         // sample rate
+            wavHeader[25] = sampleRate >> 8;
+            wavHeader[32] = channelCount * 2;   // block alignment
+            write(teeFd, wavHeader, sizeof(wavHeader));
+            size_t total = 0;
+            bool firstRead = true;
+            for (;;) {
+#define TEE_SINK_READ 1024
+                short buffer[TEE_SINK_READ * FCC_2];
+                size_t count = TEE_SINK_READ;
+                ssize_t actual = teeSource->read(buffer, count,
+                        AudioBufferProvider::kInvalidPTS);
+                bool wasFirstRead = firstRead;
+                firstRead = false;
+                if (actual <= 0) {
+                    if (actual == (ssize_t) OVERRUN && wasFirstRead) {
+                        continue;
                     }
-                    effect->unlock();
+                    break;
                 }
-                desc->mEffect.clear();
+                ALOG_ASSERT(actual <= (ssize_t)count);
+                write(teeFd, buffer, actual * channelCount * sizeof(short));
+                total += actual;
             }
-            mSuspendedEffects.removeItemsAt(index);
-        }
-    }
-}
-
-// must be called with ThreadBase::mLock held
-void AudioFlinger::EffectChain::setEffectSuspendedAll_l(bool suspend)
-{
-    sp<SuspendedEffectDesc> desc;
-
-    ssize_t index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll);
-    if (suspend) {
-        if (index >= 0) {
-            desc = mSuspendedEffects.valueAt(index);
+            lseek(teeFd, (off_t) 4, SEEK_SET);
+            uint32_t temp = 44 + total * channelCount * sizeof(short) - 8;
+            write(teeFd, &temp, sizeof(temp));
+            lseek(teeFd, (off_t) 40, SEEK_SET);
+            temp =  total * channelCount * sizeof(short);
+            write(teeFd, &temp, sizeof(temp));
+            close(teeFd);
+            fdprintf(fd, "FastMixer tee copied to %s\n", teePath);
         } else {
-            desc = new SuspendedEffectDesc();
-            mSuspendedEffects.add((int)kKeyForSuspendAll, desc);
-            ALOGV("setEffectSuspendedAll_l() add entry for 0");
-        }
-        if (desc->mRefCount++ == 0) {
-            Vector< sp<EffectModule> > effects;
-            getSuspendEligibleEffects(effects);
-            for (size_t i = 0; i < effects.size(); i++) {
-                setEffectSuspended_l(&effects[i]->desc().type, true);
-            }
-        }
-    } else {
-        if (index < 0) {
-            return;
-        }
-        desc = mSuspendedEffects.valueAt(index);
-        if (desc->mRefCount <= 0) {
-            ALOGW("setEffectSuspendedAll_l() restore refcount should not be 0 %d", desc->mRefCount);
-            desc->mRefCount = 1;
-        }
-        if (--desc->mRefCount == 0) {
-            Vector<const effect_uuid_t *> types;
-            for (size_t i = 0; i < mSuspendedEffects.size(); i++) {
-                if (mSuspendedEffects.keyAt(i) == (int)kKeyForSuspendAll) {
-                    continue;
-                }
-                types.add(&mSuspendedEffects.valueAt(i)->mType);
-            }
-            for (size_t i = 0; i < types.size(); i++) {
-                setEffectSuspended_l(types[i], false);
-            }
-            ALOGV("setEffectSuspendedAll_l() remove entry for %08x",
-                    mSuspendedEffects.keyAt(index));
-            mSuspendedEffects.removeItem((int)kKeyForSuspendAll);
+            fdprintf(fd, "FastMixer unable to create tee %s: \n", strerror(errno));
         }
     }
 }
 
-
-// The volume effect is used for automated tests only
-#ifndef OPENSL_ES_H_
-static const effect_uuid_t SL_IID_VOLUME_ = { 0x09e8ede0, 0xddde, 0x11db, 0xb4f6,
-                                            { 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } };
-const effect_uuid_t * const SL_IID_VOLUME = &SL_IID_VOLUME_;
-#endif //OPENSL_ES_H_
-
-bool AudioFlinger::EffectChain::isEffectEligibleForSuspend(const effect_descriptor_t& desc)
-{
-    // auxiliary effects and visualizer are never suspended on output mix
-    if ((mSessionId == AUDIO_SESSION_OUTPUT_MIX) &&
-        (((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) ||
-         (memcmp(&desc.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0) ||
-         (memcmp(&desc.type, SL_IID_VOLUME, sizeof(effect_uuid_t)) == 0))) {
-        return false;
-    }
-    return true;
-}
-
-void AudioFlinger::EffectChain::getSuspendEligibleEffects(
-        Vector< sp<AudioFlinger::EffectModule> > &effects)
-{
-    effects.clear();
-    for (size_t i = 0; i < mEffects.size(); i++) {
-        if (isEffectEligibleForSuspend(mEffects[i]->desc())) {
-            effects.add(mEffects[i]);
-        }
-    }
-}
-
-sp<AudioFlinger::EffectModule> AudioFlinger::EffectChain::getEffectIfEnabled(
-                                                            const effect_uuid_t *type)
-{
-    sp<EffectModule> effect = getEffectFromType_l(type);
-    return effect != 0 && effect->isEnabled() ? effect : 0;
-}
-
-void AudioFlinger::EffectChain::checkSuspendOnEffectEnabled(const sp<EffectModule>& effect,
-                                                            bool enabled)
-{
-    ssize_t index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow);
-    if (enabled) {
-        if (index < 0) {
-            // if the effect is not suspend check if all effects are suspended
-            index = mSuspendedEffects.indexOfKey((int)kKeyForSuspendAll);
-            if (index < 0) {
-                return;
-            }
-            if (!isEffectEligibleForSuspend(effect->desc())) {
-                return;
-            }
-            setEffectSuspended_l(&effect->desc().type, enabled);
-            index = mSuspendedEffects.indexOfKey(effect->desc().type.timeLow);
-            if (index < 0) {
-                ALOGW("checkSuspendOnEffectEnabled() Fx should be suspended here!");
-                return;
-            }
-        }
-        ALOGV("checkSuspendOnEffectEnabled() enable suspending fx %08x",
-            effect->desc().type.timeLow);
-        sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index);
-        // if effect is requested to suspended but was not yet enabled, supend it now.
-        if (desc->mEffect == 0) {
-            desc->mEffect = effect;
-            effect->setEnabled(false);
-            effect->setSuspended(true);
-        }
-    } else {
-        if (index < 0) {
-            return;
-        }
-        ALOGV("checkSuspendOnEffectEnabled() disable restoring fx %08x",
-            effect->desc().type.timeLow);
-        sp<SuspendedEffectDesc> desc = mSuspendedEffects.valueAt(index);
-        desc->mEffect.clear();
-        effect->setSuspended(false);
-    }
-}
-
-#undef LOG_TAG
-#define LOG_TAG "AudioFlinger"
-
 // ----------------------------------------------------------------------------
 
 status_t AudioFlinger::onTransact(