From 8a50cda8f72738e943904fdf7cae189b2b0a8ea8 Mon Sep 17 00:00:00 2001
From: Zhou Song <zhous@codeaurora.org>
Date: Sat, 10 Jan 2015 00:01:36 +0800
Subject: camera: override shutter sound volume

-Override shutter sound volume by reading property and using the
 value from the property. The global volume is re-set when camera
 recording is stopped or when the application exits

CRs-Fixed: 716717

Change-Id: I6b40cddad99fdb12f6a3266217b1e98d347e0cd5
---
 src/com/android/camera/CameraActivity.java | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/com/android/camera/CameraActivity.java b/src/com/android/camera/CameraActivity.java
index d460867a6..9d2681723 100644
--- a/src/com/android/camera/CameraActivity.java
+++ b/src/com/android/camera/CameraActivity.java
@@ -49,6 +49,7 @@ import android.os.Handler;
 import android.os.IBinder;
 import android.os.Looper;
 import android.os.Message;
+import android.os.SystemProperties;
 import android.preference.PreferenceManager;
 import android.provider.MediaStore;
 import android.provider.Settings;
@@ -101,6 +102,8 @@ import java.io.File;
 
 import static com.android.camera.CameraManager.CameraOpenErrorCallback;
 
+import android.media.AudioManager;
+
 public class CameraActivity extends Activity
         implements ModuleSwitcher.ModuleSwitchListener,
         ActionBar.OnMenuVisibilityListener,
@@ -213,6 +216,10 @@ public class CameraActivity extends Activity
     public static int SETTING_LIST_WIDTH_2 = 250;
     private Bitmap mPreviewThumbnailBitmap;
 
+    private AudioManager mAudioManager;
+    private int mShutterVol;
+    private int mOriginalMasterVol;
+
     private class MyOrientationEventListener
             extends OrientationEventListener {
         public MyOrientationEventListener(Context context) {
@@ -1159,6 +1166,12 @@ public class CameraActivity extends Activity
         super.onCreate(state);
         GcamHelper.init(getContentResolver());
 
+        mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
+        mOriginalMasterVol = mAudioManager.getMasterVolume();
+        mShutterVol =  SystemProperties.getInt("persist.camera.snapshot.volume", -1);
+        if (mShutterVol >= 0 && mShutterVol <= 100 )
+            mAudioManager.setMasterVolume(mShutterVol,0);
+
         getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
         setContentView(R.layout.camera_filmstrip);
 
@@ -1369,6 +1382,8 @@ public class CameraActivity extends Activity
 
     @Override
     public void onPause() {
+        if (mShutterVol >= 0 && mShutterVol <= 100)
+            mAudioManager.setMasterVolume(mOriginalMasterVol,0);
         // Delete photos that are pending deletion
         performDeletion();
         mOrientationListener.disable();
@@ -1392,6 +1407,8 @@ public class CameraActivity extends Activity
 
     @Override
     public void onResume() {
+        if (mShutterVol >= 0 && mShutterVol <= 100)
+            mAudioManager.setMasterVolume(mShutterVol,0);
         // TODO: Handle this in OrientationManager.
         // Auto-rotate off
         if (Settings.System.getInt(getContentResolver(),
@@ -1459,6 +1476,8 @@ public class CameraActivity extends Activity
 
     @Override
     public void onDestroy() {
+        if (mShutterVol >= 0 && mShutterVol <= 100)
+            mAudioManager.setMasterVolume(mOriginalMasterVol,0);
         if (mSecureCamera) {
             unregisterReceiver(mScreenOffReceiver);
         }
-- 
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