Disable shutter sound and play recording sound for still mode time lapse.

Disabling shutter sound when using still capture for time lapse recording.
We also play recording sound at the start and stop of recording as is
done for usual video recording.

Change-Id: I6a6fa0c7c867979624105eea74fc17945db1f517
diff --git a/media/libstagefright/CameraSourceTimeLapse.cpp b/media/libstagefright/CameraSourceTimeLapse.cpp
index 7595a28..44d159a 100644
--- a/media/libstagefright/CameraSourceTimeLapse.cpp
+++ b/media/libstagefright/CameraSourceTimeLapse.cpp
@@ -202,6 +202,10 @@
         mCamera->setParameters(params.flatten());
         mCameraIdle = true;
 
+        // disable shutter sound and play the recording sound.
+        mCamera->sendCommand(CAMERA_CMD_ENABLE_SHUTTER_SOUND, 0, 0);
+        mCamera->sendCommand(CAMERA_CMD_PLAY_RECORDING_SOUND, 0, 0);
+
         // create a thread which takes pictures in a loop
         pthread_attr_t attr;
         pthread_attr_init(&attr);
@@ -219,6 +223,9 @@
     if (mUseStillCameraForTimeLapse) {
         void *dummy;
         pthread_join(mThreadTimeLapse, &dummy);
+
+        // play the recording sound and restart preview.
+        mCamera->sendCommand(CAMERA_CMD_PLAY_RECORDING_SOUND, 0, 0);
         CHECK_EQ(OK, mCamera->startPreview());
     } else {
         mCamera->stopRecording();