camera: Allow shutter sounds to be disabled from camera2 api

When using the connectLegacy binder interface (available only
through an @hide java api), then consider the camera to be in the
camera2 api legacy mode.

In legacy mode, allow disabling the shutter sound unconditionally.

Bug: 17109582
Change-Id: Ieb3fc61ff111d792cc657c018e278349c25472cf
diff --git a/services/camera/libcameraservice/api1/Camera2Client.cpp b/services/camera/libcameraservice/api1/Camera2Client.cpp
index 5eb5181..bc40971 100644
--- a/services/camera/libcameraservice/api1/Camera2Client.cpp
+++ b/services/camera/libcameraservice/api1/Camera2Client.cpp
@@ -53,7 +53,8 @@
         int cameraFacing,
         int clientPid,
         uid_t clientUid,
-        int servicePid):
+        int servicePid,
+        bool legacyMode):
         Camera2ClientBase(cameraService, cameraClient, clientPackageName,
                 cameraId, cameraFacing, clientPid, clientUid, servicePid),
         mParameters(cameraId, cameraFacing)
@@ -62,6 +63,8 @@
 
     SharedParameters::Lock l(mParameters);
     l.mParameters.state = Parameters::DISCONNECTED;
+
+    mLegacyMode = legacyMode;
 }
 
 status_t Camera2Client::initialize(camera_module_t *module)
@@ -1449,6 +1452,13 @@
         return OK;
     }
 
+    // the camera2 api legacy mode can unconditionally disable the shutter sound
+    if (mLegacyMode) {
+        ALOGV("%s: Disable shutter sound in legacy mode", __FUNCTION__);
+        l.mParameters.playShutterSound = false;
+        return OK;
+    }
+
     // Disabling shutter sound may not be allowed. In that case only
     // allow the mediaserver process to disable the sound.
     char value[PROPERTY_VALUE_MAX];
diff --git a/services/camera/libcameraservice/api1/Camera2Client.h b/services/camera/libcameraservice/api1/Camera2Client.h
index 5ce757a..f5c3a30 100644
--- a/services/camera/libcameraservice/api1/Camera2Client.h
+++ b/services/camera/libcameraservice/api1/Camera2Client.h
@@ -89,7 +89,8 @@
             int cameraFacing,
             int clientPid,
             uid_t clientUid,
-            int servicePid);
+            int servicePid,
+            bool legacyMode);
 
     virtual ~Camera2Client();
 
@@ -203,6 +204,7 @@
     bool mAfInMotion;
 
     /** Utility members */
+    bool mLegacyMode;
 
     // Wait until the camera device has received the latest control settings
     status_t syncWithDevice();
diff --git a/services/camera/libcameraservice/api1/CameraClient.cpp b/services/camera/libcameraservice/api1/CameraClient.cpp
index fb6b678..abe1235 100644
--- a/services/camera/libcameraservice/api1/CameraClient.cpp
+++ b/services/camera/libcameraservice/api1/CameraClient.cpp
@@ -38,7 +38,7 @@
         const String16& clientPackageName,
         int cameraId, int cameraFacing,
         int clientPid, int clientUid,
-        int servicePid):
+        int servicePid, bool legacyMode):
         Client(cameraService, cameraClient, clientPackageName,
                 cameraId, cameraFacing, clientPid, clientUid, servicePid)
 {
@@ -54,6 +54,7 @@
     // Callback is disabled by default
     mPreviewCallbackFlag = CAMERA_FRAME_CALLBACK_FLAG_NOOP;
     mOrientation = getOrientation(0, mCameraFacing == CAMERA_FACING_FRONT);
+    mLegacyMode = legacyMode;
     mPlayShutterSound = true;
     LOG1("CameraClient::CameraClient X (pid %d, id %d)", callingPid, cameraId);
 }
@@ -576,6 +577,13 @@
         return OK;
     }
 
+    // the camera2 api legacy mode can unconditionally disable the shutter sound
+    if (mLegacyMode) {
+        ALOGV("%s: Disable shutter sound in legacy mode", __FUNCTION__);
+        mPlayShutterSound = false;
+        return OK;
+    }
+
     // Disabling shutter sound may not be allowed. In that case only
     // allow the mediaserver process to disable the sound.
     char value[PROPERTY_VALUE_MAX];
diff --git a/services/camera/libcameraservice/api1/CameraClient.h b/services/camera/libcameraservice/api1/CameraClient.h
index 4b89564..6779f5e 100644
--- a/services/camera/libcameraservice/api1/CameraClient.h
+++ b/services/camera/libcameraservice/api1/CameraClient.h
@@ -64,7 +64,8 @@
             int cameraFacing,
             int clientPid,
             int clientUid,
-            int servicePid);
+            int servicePid,
+            bool legacyMode = false);
     ~CameraClient();
 
     status_t initialize(camera_module_t *module);
@@ -129,6 +130,7 @@
     int                             mPreviewCallbackFlag;
     int                             mOrientation;     // Current display orientation
     bool                            mPlayShutterSound;
+    bool                            mLegacyMode; // camera2 api legacy mode?
 
     // Ensures atomicity among the public methods
     mutable Mutex                   mLock;