diff --git a/media/libstagefright/Android.mk b/media/libstagefright/Android.mk
index 0aeb515..690deac 100644
--- a/media/libstagefright/Android.mk
+++ b/media/libstagefright/Android.mk
@@ -9,7 +9,6 @@
         AACWriter.cpp                     \
         AMRExtractor.cpp                  \
         AMRWriter.cpp                     \
-        AVIExtractor.cpp                  \
         AudioPlayer.cpp                   \
         AudioSource.cpp                   \
         AwesomePlayer.cpp                 \
diff --git a/media/libstagefright/DataSource.cpp b/media/libstagefright/DataSource.cpp
index 70523c1..43539bb 100644
--- a/media/libstagefright/DataSource.cpp
+++ b/media/libstagefright/DataSource.cpp
@@ -15,7 +15,6 @@
  */
 
 #include "include/AMRExtractor.h"
-#include "include/AVIExtractor.h"
 #include "include/MP3Extractor.h"
 #include "include/MPEG4Extractor.h"
 #include "include/WAVExtractor.h"
@@ -113,7 +112,6 @@
     RegisterSniffer(SniffMPEG2TS);
     RegisterSniffer(SniffMP3);
     RegisterSniffer(SniffAAC);
-    RegisterSniffer(SniffAVI);
     RegisterSniffer(SniffMPEG2PS);
 
     char value[PROPERTY_VALUE_MAX];
diff --git a/media/libstagefright/MediaExtractor.cpp b/media/libstagefright/MediaExtractor.cpp
index 2221268..374ecf7 100644
--- a/media/libstagefright/MediaExtractor.cpp
+++ b/media/libstagefright/MediaExtractor.cpp
@@ -19,7 +19,6 @@
 #include <utils/Log.h>
 
 #include "include/AMRExtractor.h"
-#include "include/AVIExtractor.h"
 #include "include/MP3Extractor.h"
 #include "include/MPEG4Extractor.h"
 #include "include/WAVExtractor.h"
@@ -110,8 +109,6 @@
         ret = new MatroskaExtractor(source);
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG2TS)) {
         ret = new MPEG2TSExtractor(source);
-    } else if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_AVI)) {
-        ret = new AVIExtractor(source);
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WVM)) {
         ret = new WVMExtractor(source);
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC_ADTS)) {
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index aea31a8..e9ac3f9 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -1816,6 +1816,18 @@
     return &mOutput->stream->common;
 }
 
+uint32_t AudioFlinger::PlaybackThread::activeSleepTimeUs()
+{
+    // A2DP output latency is not due only to buffering capacity. It also reflects encoding,
+    // decoding and transfer time. So sleeping for half of the latency would likely cause
+    // underruns
+    if (audio_is_a2dp_device((audio_devices_t)mDevice)) {
+        return (uint32_t)((uint32_t)((mFrameCount * 1000) / mSampleRate) * 1000);
+    } else {
+        return (uint32_t)(mOutput->stream->get_latency(mOutput->stream) * 1000) / 2;
+    }
+}
+
 // ----------------------------------------------------------------------------
 
 AudioFlinger::MixerThread::MixerThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device)
@@ -2422,11 +2434,6 @@
     return NO_ERROR;
 }
 
-uint32_t AudioFlinger::MixerThread::activeSleepTimeUs()
-{
-    return (uint32_t)(mOutput->stream->get_latency(mOutput->stream) * 1000) / 2;
-}
-
 uint32_t AudioFlinger::MixerThread::idleSleepTimeUs()
 {
     return (uint32_t)(((mFrameCount * 1000) / mSampleRate) * 1000) / 2;
@@ -2893,7 +2900,7 @@
 {
     uint32_t time;
     if (audio_is_linear_pcm(mFormat)) {
-        time = (uint32_t)(mOutput->stream->get_latency(mOutput->stream) * 1000) / 2;
+        time = PlaybackThread::activeSleepTimeUs();
     } else {
         time = 10000;
     }
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 897bc78..6cafa7e 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -776,7 +776,7 @@
 
         virtual int             getTrackName_l() = 0;
         virtual void            deleteTrackName_l(int name) = 0;
-        virtual uint32_t        activeSleepTimeUs() = 0;
+        virtual uint32_t        activeSleepTimeUs();
         virtual uint32_t        idleSleepTimeUs() = 0;
         virtual uint32_t        suspendSleepTimeUs() = 0;
 
@@ -833,7 +833,6 @@
                                                 Vector< sp<Track> > *tracksToRemove);
         virtual     int         getTrackName_l();
         virtual     void        deleteTrackName_l(int name);
-        virtual     uint32_t    activeSleepTimeUs();
         virtual     uint32_t    idleSleepTimeUs();
         virtual     uint32_t    suspendSleepTimeUs();