audio policy: add routing update client interface
Added IAudioPolicyServiceClient client binder interface
for client process to receive notifications from AudioPolicyService
when audio ports are added/removed or audio patches created/released.
The audio patches owned by a given client are automatically released when
this client binder dies.
Bug: 14815883.
Change-Id: I6013f6aec03b50565cffb1ad2cd1f0f8852032c5
diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
index a79a9ff..6fe0c7f 100644
--- a/include/media/AudioSystem.h
+++ b/include/media/AudioSystem.h
@@ -19,6 +19,7 @@
#include <hardware/audio_effect.h>
#include <media/IAudioFlingerClient.h>
+#include <media/IAudioPolicyServiceClient.h>
#include <system/audio.h>
#include <system/audio_policy.h>
#include <utils/Errors.h>
@@ -301,6 +302,21 @@
// ----------------------------------------------------------------------------
+ class AudioPortCallback : public RefBase
+ {
+ public:
+
+ AudioPortCallback() {}
+ virtual ~AudioPortCallback() {}
+
+ virtual void onAudioPortListUpdate() = 0;
+ virtual void onAudioPatchListUpdate() = 0;
+ virtual void onServiceDied() = 0;
+
+ };
+
+ static void setAudioPortCallback(sp<AudioPortCallback> callBack);
+
private:
class AudioFlingerClient: public IBinder::DeathRecipient, public BnAudioFlingerClient
@@ -319,7 +335,8 @@
virtual void ioConfigChanged(int event, audio_io_handle_t ioHandle, const void *param2);
};
- class AudioPolicyServiceClient: public IBinder::DeathRecipient
+ class AudioPolicyServiceClient: public IBinder::DeathRecipient,
+ public BnAudioPolicyServiceClient
{
public:
AudioPolicyServiceClient() {
@@ -327,6 +344,10 @@
// DeathRecipient
virtual void binderDied(const wp<IBinder>& who);
+
+ // IAudioPolicyServiceClient
+ virtual void onAudioPortListUpdate();
+ virtual void onAudioPatchListUpdate();
};
static sp<AudioFlingerClient> gAudioFlingerClient;
@@ -349,6 +370,8 @@
// list of output descriptors containing cached parameters
// (sampling rate, framecount, channel count...)
static DefaultKeyedVector<audio_io_handle_t, OutputDescriptor *> gOutputs;
+
+ static sp<AudioPortCallback> gAudioPortCallback;
};
}; // namespace android