Merge "Camera2: Configure ZSL at the right time." into jb-mr1-dev
diff --git a/camera/CameraParameters.cpp b/camera/CameraParameters.cpp
index a657fe3..d10f2e5 100644
--- a/camera/CameraParameters.cpp
+++ b/camera/CameraParameters.cpp
@@ -147,6 +147,7 @@
 const char CameraParameters::SCENE_MODE_PARTY[] = "party";
 const char CameraParameters::SCENE_MODE_CANDLELIGHT[] = "candlelight";
 const char CameraParameters::SCENE_MODE_BARCODE[] = "barcode";
+const char CameraParameters::SCENE_MODE_HDR[] = "hdr";
 
 const char CameraParameters::PIXEL_FORMAT_YUV422SP[] = "yuv422sp";
 const char CameraParameters::PIXEL_FORMAT_YUV420SP[] = "yuv420sp";
diff --git a/include/camera/CameraParameters.h b/include/camera/CameraParameters.h
index 8668958..d521543 100644
--- a/include/camera/CameraParameters.h
+++ b/include/camera/CameraParameters.h
@@ -597,6 +597,10 @@
     // Applications are looking for a barcode. Camera driver will be optimized
     // for barcode reading.
     static const char SCENE_MODE_BARCODE[];
+    // A high-dynamic range mode. In this mode, the HAL module will use a
+    // capture strategy that extends the dynamic range of the captured
+    // image in some fashion. Only the final image is returned.
+    static const char SCENE_MODE_HDR[];
 
     // Pixel color formats for KEY_PREVIEW_FORMAT, KEY_PICTURE_FORMAT,
     // and KEY_VIDEO_FRAME_FORMAT
diff --git a/media/libeffects/data/audio_effects.conf b/media/libeffects/data/audio_effects.conf
index d681c69..93f27cb 100644
--- a/media/libeffects/data/audio_effects.conf
+++ b/media/libeffects/data/audio_effects.conf
@@ -15,14 +15,18 @@
   visualizer {
     path /system/lib/soundfx/libvisualizer.so
   }
-  pre_processing {
-    path /system/lib/soundfx/libaudiopreprocessing.so
-  }
   downmix {
     path /system/lib/soundfx/libdownmix.so
   }
 }
 
+# Default pre-processing library. Add to audio_effect.conf "libraries" section if
+# audio HAL implements support for default software audio pre-processing effects
+#
+#  pre_processing {
+#    path /system/lib/soundfx/libaudiopreprocessing.so
+#  }
+
 # list of effects to load. Each effect element must contain a "library" and a "uuid" element.
 # The value of the "library" element must correspond to the name of one library element in the
 # "libraries" element.
@@ -79,19 +83,24 @@
     library downmix
     uuid 93f04452-e4fe-41cc-91f9-e475b6d1d69f
   }
-  agc {
-    library pre_processing
-    uuid aa8130e0-66fc-11e0-bad0-0002a5d5c51b
-  }
-  aec {
-    library pre_processing
-    uuid bb392ec0-8d4d-11e0-a896-0002a5d5c51b
-  }
-  ns {
-    library pre_processing
-    uuid c06c8400-8e06-11e0-9cb6-0002a5d5c51b
-  }
 }
+
+# Default pre-processing effects. Add to audio_effect.conf "effects" section if
+# audio HAL implements support for them.
+#
+#  agc {
+#    library pre_processing
+#    uuid aa8130e0-66fc-11e0-bad0-0002a5d5c51b
+#  }
+#  aec {
+#    library pre_processing
+#    uuid bb392ec0-8d4d-11e0-a896-0002a5d5c51b
+#  }
+#  ns {
+#    library pre_processing
+#    uuid c06c8400-8e06-11e0-9cb6-0002a5d5c51b
+#  }
+
 # Audio preprocessor configurations.
 # The pre processor configuration consists in a list of elements each describing
 # pre processor settings for a given input source. Valid input source names are:
diff --git a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
index d4be9fa..f3f2d1e 100644
--- a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
+++ b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
@@ -299,6 +299,10 @@
         pContext->pBundledContext->SamplesToExitCountBb     = 0;
         pContext->pBundledContext->SamplesToExitCountEq     = 0;
 
+        for (int i = 0; i < FIVEBAND_NUMBANDS; i++) {
+            pContext->pBundledContext->bandGaindB[i] = EQNB_5BandSoftPresets[i];
+        }
+
         ALOGV("\tEffectCreate - Calling LvmBundle_init");
         ret = LvmBundle_init(pContext);
 
@@ -1194,6 +1198,56 @@
     //ALOGV("\tVirtualizerSetStrength Succesfully called LVM_SetControlParameters\n\n");
 }    /* end setStrength */
 
+
+//----------------------------------------------------------------------------
+// EqualizerLimitBandLevels()
+//----------------------------------------------------------------------------
+// Purpose: limit all EQ band gains to a value less than MAX_BAND_GAIN_DB while
+//          preserving the relative band levels.
+//
+// Inputs:
+//  pContext:   effect engine context
+//
+// Outputs:
+//
+//----------------------------------------------------------------------------
+void EqualizerLimitBandLevels(EffectContext *pContext) {
+    LVM_ControlParams_t     ActiveParams;              /* Current control Parameters */
+    LVM_ReturnStatus_en     LvmStatus=LVM_SUCCESS;     /* Function call status */
+    LVM_EQNB_BandDef_t      *BandDef;
+
+    /* Get the current settings */
+    LvmStatus = LVM_GetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
+    LVM_ERROR_CHECK(LvmStatus, "LVM_GetControlParameters", "EqualizerLimitBandLevels")
+    //ALOGV("\tEqualizerLimitBandLevels Succesfully returned from LVM_GetControlParameters\n");
+    //ALOGV("\tEqualizerLimitBandLevels just Got -> %d\n",
+    //          ActiveParams.pEQNB_BandDefinition[band].Gain);
+
+    int gainCorrection = 0;
+    for (int i = 0; i < FIVEBAND_NUMBANDS; i++) {
+        int level = pContext->pBundledContext->bandGaindB[i] + ActiveParams.VC_EffectLevel;
+        if (level > MAX_BAND_GAIN_DB) {
+            int correction = MAX_BAND_GAIN_DB -level;
+            if (correction < gainCorrection) {
+                gainCorrection = correction;
+            }
+        }
+    }
+
+    /* Set local EQ parameters */
+    BandDef = ActiveParams.pEQNB_BandDefinition;
+    for (int i=0; i < FIVEBAND_NUMBANDS; i++) {
+        ActiveParams.pEQNB_BandDefinition[i].Gain = pContext->pBundledContext->bandGaindB[i] +
+                gainCorrection;
+    }
+    /* Activate the initial settings */
+    LvmStatus = LVM_SetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
+    LVM_ERROR_CHECK(LvmStatus, "LVM_SetControlParameters", "EqualizerLimitBandLevels")
+    //ALOGV("\tEqualizerLimitBandLevels just Set -> %d\n",
+    //          ActiveParams.pEQNB_BandDefinition[band].Gain);
+}
+
+
 //----------------------------------------------------------------------------
 // EqualizerGetBandLevel()
 //----------------------------------------------------------------------------
@@ -1207,23 +1261,8 @@
 //
 //----------------------------------------------------------------------------
 int32_t EqualizerGetBandLevel(EffectContext *pContext, int32_t band){
-
-    int32_t Gain =0;
-    LVM_ControlParams_t     ActiveParams;                           /* Current control Parameters */
-    LVM_ReturnStatus_en     LvmStatus = LVM_SUCCESS;                /* Function call status */
-    LVM_EQNB_BandDef_t      *BandDef;
-    /* Get the current settings */
-    LvmStatus = LVM_GetControlParameters(pContext->pBundledContext->hInstance,
-                                         &ActiveParams);
-
-    LVM_ERROR_CHECK(LvmStatus, "LVM_GetControlParameters", "EqualizerGetBandLevel")
-
-    BandDef = ActiveParams.pEQNB_BandDefinition;
-    Gain    = (int32_t)BandDef[band].Gain*100;    // Convert to millibels
-
-    //ALOGV("\tEqualizerGetBandLevel -> %d\n", Gain );
-    //ALOGV("\tEqualizerGetBandLevel Succesfully returned from LVM_GetControlParameters\n");
-    return Gain;
+    //ALOGV("\tEqualizerGetBandLevel -> %d\n", pContext->pBundledContext->bandGaindB[band] );
+    return pContext->pBundledContext->bandGaindB[band] * 100;
 }
 
 //----------------------------------------------------------------------------
@@ -1248,30 +1287,12 @@
         gainRounded = (int)((Gain-50)/100);
     }
     //ALOGV("\tEqualizerSetBandLevel(%d)->(%d)", Gain, gainRounded);
-
-
-    LVM_ControlParams_t     ActiveParams;              /* Current control Parameters */
-    LVM_ReturnStatus_en     LvmStatus=LVM_SUCCESS;     /* Function call status */
-    LVM_EQNB_BandDef_t      *BandDef;
-
-    /* Get the current settings */
-    LvmStatus = LVM_GetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
-    LVM_ERROR_CHECK(LvmStatus, "LVM_GetControlParameters", "EqualizerSetBandLevel")
-    //ALOGV("\tEqualizerSetBandLevel Succesfully returned from LVM_GetControlParameters\n");
-    //ALOGV("\tEqualizerSetBandLevel just Got -> %d\n",ActiveParams.pEQNB_BandDefinition[band].Gain);
-
-    /* Set local EQ parameters */
-    BandDef = ActiveParams.pEQNB_BandDefinition;
-    ActiveParams.pEQNB_BandDefinition[band].Gain = gainRounded;
-
-    /* Activate the initial settings */
-    LvmStatus = LVM_SetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
-    LVM_ERROR_CHECK(LvmStatus, "LVM_SetControlParameters", "EqualizerSetBandLevel")
-    //ALOGV("\tEqualizerSetBandLevel just Set -> %d\n",ActiveParams.pEQNB_BandDefinition[band].Gain);
-
+    pContext->pBundledContext->bandGaindB[band] = gainRounded;
     pContext->pBundledContext->CurPreset = PRESET_CUSTOM;
-    return;
+
+    EqualizerLimitBandLevels(pContext);
 }
+
 //----------------------------------------------------------------------------
 // EqualizerGetCentreFrequency()
 //----------------------------------------------------------------------------
@@ -1410,13 +1431,15 @@
     {
         ActiveParams.pEQNB_BandDefinition[i].Frequency = EQNB_5BandPresetsFrequencies[i];
         ActiveParams.pEQNB_BandDefinition[i].QFactor   = EQNB_5BandPresetsQFactors[i];
-        ActiveParams.pEQNB_BandDefinition[i].Gain
-        = EQNB_5BandSoftPresets[i + preset * FIVEBAND_NUMBANDS];
+        pContext->pBundledContext->bandGaindB[i] =
+                EQNB_5BandSoftPresets[i + preset * FIVEBAND_NUMBANDS];
     }
     /* Activate the new settings */
     LvmStatus = LVM_SetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
     LVM_ERROR_CHECK(LvmStatus, "LVM_SetControlParameters", "EqualizerSetPreset")
 
+    EqualizerLimitBandLevels(pContext);
+
     //ALOGV("\tEqualizerSetPreset Succesfully called LVM_SetControlParameters\n");
     return;
 }
@@ -1494,6 +1517,9 @@
         ALOGV("\tLVM_VOLUME: Disabling Smoothing for first volume change to remove spikes/clicks");
         pContext->pBundledContext->firstVolume = LVM_FALSE;
     }
+
+    EqualizerLimitBandLevels(pContext);
+
     return 0;
 }    /* end VolumeSetVolumeLevel */
 
diff --git a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h
index 5634ca1..9c58ecd 100644
--- a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h
+++ b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h
@@ -38,6 +38,7 @@
 #define VOLUME_CUP_LOAD_ARM9E      0      // Expressed in 0.1 MIPS
 #define BUNDLE_MEM_USAGE           25     // Expressed in kB
 //#define LVM_PCM
+#define MAX_BAND_GAIN_DB           4
 
 #ifndef OPENSL_ES_H_
 static const effect_uuid_t SL_IID_VOLUME_ = { 0x09e8ede0, 0xddde, 0x11db, 0xb4f6,
@@ -95,6 +96,7 @@
     int                             SamplesToExitCountVirt;
     LVM_INT16                       *workBuffer;
     int                             frameCount;
+    int32_t                         bandGaindB[FIVEBAND_NUMBANDS];
     #ifdef LVM_PCM
     FILE                            *PcmInPtr;
     FILE                            *PcmOutPtr;
diff --git a/media/libstagefright/AwesomePlayer.cpp b/media/libstagefright/AwesomePlayer.cpp
index 04f78eb..9f069ae 100644
--- a/media/libstagefright/AwesomePlayer.cpp
+++ b/media/libstagefright/AwesomePlayer.cpp
@@ -451,7 +451,11 @@
     }
 
     if (!haveAudio && !haveVideo) {
-        return UNKNOWN_ERROR;
+        if (mWVMExtractor != NULL) {
+            return mWVMExtractor->getError();
+        } else {
+            return UNKNOWN_ERROR;
+        }
     }
 
     mExtractorFlags = extractor->flags();
diff --git a/media/libstagefright/WVMExtractor.cpp b/media/libstagefright/WVMExtractor.cpp
index d94fc65..31b2bcf 100644
--- a/media/libstagefright/WVMExtractor.cpp
+++ b/media/libstagefright/WVMExtractor.cpp
@@ -148,6 +148,20 @@
     }
 }
 
+status_t WVMExtractor::getError() {
+    if (mImpl == NULL) {
+       return UNKNOWN_ERROR;
+    }
+
+    return mImpl->getError();
+}
+
+void WVMExtractor::setError(status_t err) {
+    if (mImpl != NULL) {
+        mImpl->setError(err);
+    }
+}
+
 bool SniffWVM(
     const sp<DataSource> &source, String8 *mimeType, float *confidence,
         sp<AMessage> *) {
diff --git a/media/libstagefright/include/WVMExtractor.h b/media/libstagefright/include/WVMExtractor.h
index c43c801..8e62946 100644
--- a/media/libstagefright/include/WVMExtractor.h
+++ b/media/libstagefright/include/WVMExtractor.h
@@ -33,9 +33,11 @@
     virtual ~WVMLoadableExtractor() {}
 
     virtual int64_t getCachedDurationUs(status_t *finalStatus) = 0;
+    virtual status_t getError() = 0;
     virtual status_t getEstimatedBandwidthKbps(int32_t *kbps) = 0;
     virtual void setAdaptiveStreamingMode(bool adaptive) = 0;
     virtual void setCryptoPluginMode(bool cryptoPluginMode) = 0;
+    virtual void setError(status_t err) = 0;
     virtual void setUID(uid_t uid) = 0;
 };
 
@@ -76,6 +78,10 @@
 
     static bool getVendorLibHandle();
 
+    status_t getError();
+
+    void setError(status_t err);
+
 protected:
     virtual ~WVMExtractor();
 
diff --git a/media/mtp/Android.mk b/media/mtp/Android.mk
index fc7fc4f..bee28d4 100644
--- a/media/mtp/Android.mk
+++ b/media/mtp/Android.mk
@@ -45,31 +45,3 @@
 LOCAL_SHARED_LIBRARIES := libutils libcutils libusbhost libbinder
 
 include $(BUILD_SHARED_LIBRARY)
-
-ifeq ($(HOST_OS),linux)
-
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES:=                                       \
-                  MtpDataPacket.cpp                     \
-                  MtpDebug.cpp                          \
-                  MtpDevice.cpp                         \
-                  MtpEventPacket.cpp                    \
-                  MtpDeviceInfo.cpp                     \
-                  MtpObjectInfo.cpp                     \
-                  MtpPacket.cpp                         \
-                  MtpProperty.cpp                       \
-                  MtpRequestPacket.cpp                  \
-                  MtpResponsePacket.cpp                 \
-                  MtpStorageInfo.cpp                    \
-                  MtpStringBuffer.cpp                   \
-                  MtpStorage.cpp                        \
-                  MtpUtils.cpp                          \
-
-LOCAL_MODULE:= libmtp
-
-LOCAL_CFLAGS := -DMTP_HOST
-
-include $(BUILD_HOST_STATIC_LIBRARY)
-
-endif
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index a5d4c6c..27e2ed2 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -3383,9 +3383,9 @@
 }
 
 // getTrackName_l() must be called with ThreadBase::mLock held
-int AudioFlinger::MixerThread::getTrackName_l(audio_channel_mask_t channelMask)
+int AudioFlinger::MixerThread::getTrackName_l(audio_channel_mask_t channelMask, int sessionId)
 {
-    return mAudioMixer->getTrackName(channelMask);
+    return mAudioMixer->getTrackName(channelMask, sessionId);
 }
 
 // deleteTrackName_l() must be called with ThreadBase::mLock held
@@ -3498,7 +3498,7 @@
                 readOutputParameters();
                 mAudioMixer = new AudioMixer(mNormalFrameCount, mSampleRate);
                 for (size_t i = 0; i < mTracks.size() ; i++) {
-                    int name = getTrackName_l(mTracks[i]->mChannelMask);
+                    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
@@ -3828,7 +3828,8 @@
 }
 
 // getTrackName_l() must be called with ThreadBase::mLock held
-int AudioFlinger::DirectOutputThread::getTrackName_l(audio_channel_mask_t channelMask)
+int AudioFlinger::DirectOutputThread::getTrackName_l(audio_channel_mask_t channelMask,
+        int sessionId)
 {
     return 0;
 }
@@ -4293,7 +4294,7 @@
         // 16 bit because data is converted to 16 bit before being stored in buffer by AudioTrack
         mCblk->frameSize = audio_is_linear_pcm(format) ? mChannelCount * sizeof(int16_t) : sizeof(uint8_t);
         // to avoid leaking a track name, do not allocate one unless there is an mCblk
-        mName = thread->getTrackName_l(channelMask);
+        mName = thread->getTrackName_l(channelMask, sessionId);
         mCblk->mName = mName;
         if (mName < 0) {
             ALOGE("no more track names available");
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 5ffa5a6..c956861 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -1086,7 +1086,7 @@
 
         // Allocate a track name for a given channel mask.
         //   Returns name >= 0 if successful, -1 on failure.
-        virtual int             getTrackName_l(audio_channel_mask_t channelMask) = 0;
+        virtual int             getTrackName_l(audio_channel_mask_t channelMask, int sessionId) = 0;
         virtual void            deleteTrackName_l(int name) = 0;
 
         // Time to sleep between cycles when:
@@ -1202,7 +1202,7 @@
 
     protected:
         virtual     mixer_state prepareTracks_l(Vector< sp<Track> > *tracksToRemove);
-        virtual     int         getTrackName_l(audio_channel_mask_t channelMask);
+        virtual     int         getTrackName_l(audio_channel_mask_t channelMask, int sessionId);
         virtual     void        deleteTrackName_l(int name);
         virtual     uint32_t    idleSleepTimeUs() const;
         virtual     uint32_t    suspendSleepTimeUs() const;
@@ -1254,7 +1254,7 @@
         virtual     bool        checkForNewParameters_l();
 
     protected:
-        virtual     int         getTrackName_l(audio_channel_mask_t channelMask);
+        virtual     int         getTrackName_l(audio_channel_mask_t channelMask, int sessionId);
         virtual     void        deleteTrackName_l(int name);
         virtual     uint32_t    activeSleepTimeUs() const;
         virtual     uint32_t    idleSleepTimeUs() const;
diff --git a/services/audioflinger/AudioMixer.cpp b/services/audioflinger/AudioMixer.cpp
index a9814a1..ab75dd0 100644
--- a/services/audioflinger/AudioMixer.cpp
+++ b/services/audioflinger/AudioMixer.cpp
@@ -163,7 +163,7 @@
     delete [] mState.resampleTemp;
 }
 
-int AudioMixer::getTrackName(audio_channel_mask_t channelMask)
+int AudioMixer::getTrackName(audio_channel_mask_t channelMask, int sessionId)
 {
     uint32_t names = (~mTrackNames) & mConfiguredNames;
     if (names != 0) {
@@ -189,6 +189,7 @@
         t->enabled = false;
         t->format = 16;
         t->channelMask = AUDIO_CHANNEL_OUT_STEREO;
+        t->sessionId = sessionId;
         // setBufferProvider(name, AudioBufferProvider *) is required before enable(name)
         t->bufferProvider = NULL;
         t->downmixerBufferProvider = NULL;
@@ -270,7 +271,7 @@
     }
 
     if (EffectCreate(&dwnmFxDesc.uuid,
-            -2 /*sessionId*/, -2 /*ioId*/,// both not relevant here, using random value
+            pTrack->sessionId /*sessionId*/, -2 /*ioId not relevant here, using random value*/,
             &pDbp->mDownmixHandle/*pHandle*/) != 0) {
         ALOGE("prepareTrackForDownmix(%d) fails: error creating downmixer effect", trackName);
         goto noDownmixForActiveTrack;
diff --git a/services/audioflinger/AudioMixer.h b/services/audioflinger/AudioMixer.h
index 6e34cd1..6333357 100644
--- a/services/audioflinger/AudioMixer.h
+++ b/services/audioflinger/AudioMixer.h
@@ -91,7 +91,7 @@
     // For all APIs with "name": TRACK0 <= name < TRACK0 + MAX_NUM_TRACKS
 
     // Allocate a track name.  Returns new track name if successful, -1 on failure.
-    int         getTrackName(audio_channel_mask_t channelMask);
+    int         getTrackName(audio_channel_mask_t channelMask, int sessionId);
 
     // Free an allocated track by name
     void        deleteTrackName(int name);
@@ -192,7 +192,7 @@
 
         DownmixerBufferProvider* downmixerBufferProvider; // 4 bytes
 
-        int32_t     padding;
+        int32_t     sessionId;
 
         // 16-byte boundary
 
diff --git a/services/audioflinger/FastMixer.cpp b/services/audioflinger/FastMixer.cpp
index cdc27a2..13003d9 100644
--- a/services/audioflinger/FastMixer.cpp
+++ b/services/audioflinger/FastMixer.cpp
@@ -281,8 +281,9 @@
                     AudioBufferProvider *bufferProvider = fastTrack->mBufferProvider;
                     ALOG_ASSERT(bufferProvider != NULL && fastTrackNames[i] == -1);
                     if (mixer != NULL) {
-                        // calling getTrackName with default channel mask
-                        name = mixer->getTrackName(AUDIO_CHANNEL_OUT_STEREO);
+                        // calling getTrackName with default channel mask and a random invalid
+                        //   sessionId (no effects here)
+                        name = mixer->getTrackName(AUDIO_CHANNEL_OUT_STEREO, -555);
                         ALOG_ASSERT(name >= 0);
                         fastTrackNames[i] = name;
                         mixer->setBufferProvider(name, bufferProvider);
diff --git a/services/camera/libcameraservice/CameraClient.cpp b/services/camera/libcameraservice/CameraClient.cpp
index 562384d..c9c816a 100644
--- a/services/camera/libcameraservice/CameraClient.cpp
+++ b/services/camera/libcameraservice/CameraClient.cpp
@@ -608,11 +608,9 @@
     } else if (cmd == CAMERA_CMD_ENABLE_SHUTTER_SOUND) {
         switch (arg1) {
             case 0:
-                enableShutterSound(false);
-                break;
+                return enableShutterSound(false);
             case 1:
-                enableShutterSound(true);
-                break;
+                return enableShutterSound(true);
             default:
                 return BAD_VALUE;
         }