Indicate screen off condition to audio framework.
Add a mechanism for AudioService to notify audio framework and audio HAL
that screen is turned on or off. This indication can be used by lower
audio layers to trigger low power audio playback mode.
Current implementaiton based on setParameters() method is experimental
and will be replaced by a different interface when ready.
Change-Id: Ie72ada0a8edec3d71b47681b9f51cb5bc839d45b
diff --git a/media/java/android/media/AudioService.java b/media/java/android/media/AudioService.java
index 0c5e673..e0c2b3b 100644
--- a/media/java/android/media/AudioService.java
+++ b/media/java/android/media/AudioService.java
@@ -368,6 +368,8 @@
intentFilter.addAction(Intent.ACTION_USB_DGTL_HEADSET_PLUG);
intentFilter.addAction(Intent.ACTION_HDMI_AUDIO_PLUG);
intentFilter.addAction(Intent.ACTION_BOOT_COMPLETED);
+ intentFilter.addAction(Intent.ACTION_SCREEN_ON);
+ intentFilter.addAction(Intent.ACTION_SCREEN_OFF);
context.registerReceiver(mReceiver, intentFilter);
// Register for package removal intent broadcasts for media button receiver persistence
@@ -2565,6 +2567,10 @@
removeMediaButtonReceiverForPackage(packageName);
}
}
+ } else if (action.equals(Intent.ACTION_SCREEN_ON)) {
+ AudioSystem.setParameters("screen_state=on");
+ } else if (action.equals(Intent.ACTION_SCREEN_OFF)) {
+ AudioSystem.setParameters("screen_state=off");
}
}
}