diff --git a/libs/audioflinger/A2dpAudioInterface.cpp b/libs/audioflinger/A2dpAudioInterface.cpp
index c07bbfe..747d0e4 100644
--- a/libs/audioflinger/A2dpAudioInterface.cpp
+++ b/libs/audioflinger/A2dpAudioInterface.cpp
@@ -457,4 +457,10 @@
     return NO_ERROR;
 }
 
+status_t A2dpAudioInterface::A2dpAudioStreamOut::getRenderPosition(uint32_t *driverFrames)
+{
+    //TODO: enable when supported by driver
+    return INVALID_OPERATION;
+}
+
 }; // namespace android
diff --git a/libs/audioflinger/A2dpAudioInterface.h b/libs/audioflinger/A2dpAudioInterface.h
index 530e432..48154f9 100644
--- a/libs/audioflinger/A2dpAudioInterface.h
+++ b/libs/audioflinger/A2dpAudioInterface.h
@@ -93,6 +93,7 @@
         virtual status_t    dump(int fd, const Vector<String16>& args);
         virtual status_t    setParameters(const String8& keyValuePairs);
         virtual String8     getParameters(const String8& keys);
+        virtual status_t    getRenderPosition(uint32_t *dspFrames);
 
     private:
         friend class A2dpAudioInterface;
diff --git a/libs/audioflinger/AudioDumpInterface.cpp b/libs/audioflinger/AudioDumpInterface.cpp
index 858e5aa..30e2bc9 100644
--- a/libs/audioflinger/AudioDumpInterface.cpp
+++ b/libs/audioflinger/AudioDumpInterface.cpp
@@ -379,6 +379,12 @@
     }
 }
 
+status_t AudioStreamOutDump::getRenderPosition(uint32_t *dspFrames)
+{
+    if (mFinalStream != 0 ) return mFinalStream->getRenderPosition(dspFrames);
+    return INVALID_OPERATION;
+}
+
 // ----------------------------------------------------------------------------
 
 AudioStreamInDump::AudioStreamInDump(AudioDumpInterface *interface,
diff --git a/libs/audioflinger/AudioDumpInterface.h b/libs/audioflinger/AudioDumpInterface.h
index 1136ce1..5b9a6b1 100644
--- a/libs/audioflinger/AudioDumpInterface.h
+++ b/libs/audioflinger/AudioDumpInterface.h
@@ -56,8 +56,9 @@
     void                Close(void);
     AudioStreamOut*     finalStream() { return mFinalStream; }
     uint32_t            device() { return mDevice; }
-
     int                 getId()  { return mId; }
+    virtual status_t    getRenderPosition(uint32_t *dspFrames);
+
 private:
     AudioDumpInterface *mInterface;
     int                  mId;
diff --git a/libs/audioflinger/AudioFlinger.cpp b/libs/audioflinger/AudioFlinger.cpp
index 5c58603..cad420a 100644
--- a/libs/audioflinger/AudioFlinger.cpp
+++ b/libs/audioflinger/AudioFlinger.cpp
@@ -633,6 +633,20 @@
     return ret;
 }
 
+status_t AudioFlinger::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output)
+{
+    status_t status;
+
+    Mutex::Autolock _l(mLock);
+
+    PlaybackThread *playbackThread = checkPlaybackThread_l(output);
+    if (playbackThread != NULL) {
+        return playbackThread->getRenderPosition(halFrames, dspFrames);
+    }
+
+    return BAD_VALUE;
+}
+
 void AudioFlinger::registerClient(const sp<IAudioFlingerClient>& client)
 {
 
@@ -1166,6 +1180,19 @@
     memset(mMixBuffer, 0, mFrameCount * 2 * sizeof(int16_t));
 }
 
+status_t AudioFlinger::PlaybackThread::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames)
+{
+    if (halFrames == 0 || dspFrames == 0) {
+        return BAD_VALUE;
+    }
+    if (mOutput == 0) {
+        return INVALID_OPERATION;
+    }
+    *halFrames = mBytesWritten/mOutput->frameSize();
+
+    return mOutput->getRenderPosition(dspFrames);
+}
+
 // ----------------------------------------------------------------------------
 
 AudioFlinger::MixerThread::MixerThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id)
@@ -1290,8 +1317,9 @@
         if (sleepTime == 0) {
             mLastWriteTime = systemTime();
             mInWrite = true;
+            mBytesWritten += mixBufferSize;
             int bytesWritten = (int)mOutput->write(curBuf, mixBufferSize);
-            if (bytesWritten > 0) mBytesWritten += bytesWritten;
+            if (bytesWritten < 0) mBytesWritten -= mixBufferSize;
             mNumWrites++;
             mInWrite = false;
             nsecs_t now = systemTime();
@@ -1812,8 +1840,9 @@
         if (sleepTime == 0) {
             mLastWriteTime = systemTime();
             mInWrite = true;
+            mBytesWritten += mixBufferSize;
             int bytesWritten = (int)mOutput->write(mMixBuffer, mixBufferSize);
-            if (bytesWritten) mBytesWritten += bytesWritten;
+            if (bytesWritten < 0) mBytesWritten -= mixBufferSize;
             mNumWrites++;
             mInWrite = false;
             mStandby = false;
diff --git a/libs/audioflinger/AudioFlinger.h b/libs/audioflinger/AudioFlinger.h
index 52999b1..44da9ed 100644
--- a/libs/audioflinger/AudioFlinger.h
+++ b/libs/audioflinger/AudioFlinger.h
@@ -136,6 +136,8 @@
 
     virtual status_t setVoiceVolume(float volume);
 
+    virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output);
+
     // IBinder::DeathRecipient
     virtual     void        binderDied(const wp<IBinder>& who);
 
@@ -526,6 +528,7 @@
                     bool        isSuspended() { return (mSuspended != 0); }
         virtual     String8     getParameters(const String8& keys);
         virtual     void        audioConfigChanged(int event, int param = 0);
+        virtual     status_t    getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames);
 
         struct  stream_type_t {
             stream_type_t()
diff --git a/libs/audioflinger/AudioHardwareGeneric.cpp b/libs/audioflinger/AudioHardwareGeneric.cpp
index 57874f3..d63c031 100644
--- a/libs/audioflinger/AudioHardwareGeneric.cpp
+++ b/libs/audioflinger/AudioHardwareGeneric.cpp
@@ -298,6 +298,11 @@
     return param.toString();
 }
 
+status_t AudioStreamOutGeneric::getRenderPosition(uint32_t *dspFrames)
+{
+    return INVALID_OPERATION;
+}
+
 // ----------------------------------------------------------------------------
 
 // record functions
@@ -310,9 +315,8 @@
         uint32_t *pRate,
         AudioSystem::audio_in_acoustics acoustics)
 {
-    // FIXME: remove logging
     if (pFormat == 0 || pChannels == 0 || pRate == 0) return BAD_VALUE;
-    LOGD("AudioStreamInGeneric::set(%p, %d, %d, %d, %u)", hw, fd, *pFormat, *pChannels, *pRate);
+    LOGV("AudioStreamInGeneric::set(%p, %d, %d, %d, %u)", hw, fd, *pFormat, *pChannels, *pRate);
     // check values
     if ((*pFormat != format()) ||
         (*pChannels != channels()) ||
@@ -332,14 +336,10 @@
 
 AudioStreamInGeneric::~AudioStreamInGeneric()
 {
-    // FIXME: remove logging
-    LOGD("AudioStreamInGeneric destructor");
 }
 
 ssize_t AudioStreamInGeneric::read(void* buffer, ssize_t bytes)
 {
-    // FIXME: remove logging
-    LOGD("AudioStreamInGeneric::read(%p, %d) from fd %d", buffer, (int)bytes, mFd);
     AutoMutex lock(mLock);
     if (mFd < 0) {
         LOGE("Attempt to read from unopened device");
diff --git a/libs/audioflinger/AudioHardwareGeneric.h b/libs/audioflinger/AudioHardwareGeneric.h
index 42da413..95c7ea3 100644
--- a/libs/audioflinger/AudioHardwareGeneric.h
+++ b/libs/audioflinger/AudioHardwareGeneric.h
@@ -55,6 +55,7 @@
     virtual status_t    dump(int fd, const Vector<String16>& args);
     virtual status_t    setParameters(const String8& keyValuePairs);
     virtual String8     getParameters(const String8& keys);
+    virtual status_t    getRenderPosition(uint32_t *dspFrames);
 
 private:
     AudioHardwareGeneric *mAudioHardware;
diff --git a/libs/audioflinger/AudioHardwareStub.cpp b/libs/audioflinger/AudioHardwareStub.cpp
index ae391ee..ae215d1 100644
--- a/libs/audioflinger/AudioHardwareStub.cpp
+++ b/libs/audioflinger/AudioHardwareStub.cpp
@@ -158,6 +158,11 @@
     return param.toString();
 }
 
+status_t AudioStreamOutStub::getRenderPosition(uint32_t *dspFrames)
+{
+    return INVALID_OPERATION;
+}
+
 // ----------------------------------------------------------------------------
 
 status_t AudioStreamInStub::set(int *pFormat, uint32_t *pChannels, uint32_t *pRate,
diff --git a/libs/audioflinger/AudioHardwareStub.h b/libs/audioflinger/AudioHardwareStub.h
index 583f852..769ae3f 100644
--- a/libs/audioflinger/AudioHardwareStub.h
+++ b/libs/audioflinger/AudioHardwareStub.h
@@ -41,6 +41,7 @@
     virtual status_t    dump(int fd, const Vector<String16>& args);
     virtual status_t    setParameters(const String8& keyValuePairs) { return NO_ERROR;}
     virtual String8     getParameters(const String8& keys);
+    virtual status_t    getRenderPosition(uint32_t *dspFrames);
 };
 
 class AudioStreamInStub : public AudioStreamIn {