reduce number of binder calls from mediaserver
Reduce the number of audio port, audio patch and
IO config changed binder calls from mediaserver to
client processes:
- Do not call IO config changed callback if selected
device is the same as previously selected one on a given
audio flinger playback or capture thread.
- Do not call the audio port or audo patch list update
callback on a client if this client as no listener registered.
Bug: 22045560.
Change-Id: If780e105404de79b7cb5c80c27b793ceb6b1c423
diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
index 26cffa6..06116a5 100644
--- a/include/media/AudioSystem.h
+++ b/include/media/AudioSystem.h
@@ -408,8 +408,8 @@
AudioPolicyServiceClient() {
}
- status_t addAudioPortCallback(const sp<AudioPortCallback>& callback);
- status_t removeAudioPortCallback(const sp<AudioPortCallback>& callback);
+ int addAudioPortCallback(const sp<AudioPortCallback>& callback);
+ int removeAudioPortCallback(const sp<AudioPortCallback>& callback);
// DeathRecipient
virtual void binderDied(const wp<IBinder>& who);