audiopolicy: engine: Add Volume Groups to common Engine
This CL adds the concept of Volume Group to the engine.
It generalizes the volume management today controled by stream types
and hard coded into AOSP.
The goal is to control the volume per attributes, being able to define
a group of attributes that follow the same volume curves.
It intends to replace the concept of aliases in AudioService.
Bug: 124767636
Test: build
Change-Id: Icd079374cc1680d074b01836eca0bceb0b0c5247
Signed-off-by: François Gaffie <francois.gaffie@renault.com>
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index 06a1f3e..3e4d885 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -143,9 +143,17 @@
virtual status_t stopInput(audio_port_handle_t portId);
virtual void releaseInput(audio_port_handle_t portId);
virtual void closeAllInputs();
- virtual void initStreamVolume(audio_stream_type_t stream,
- int indexMin,
- int indexMax);
+ /**
+ * @brief initStreamVolume: even if the engine volume files provides min and max, keep this
+ * api for compatibility reason.
+ * AudioServer will get the min and max and may overwrite them if:
+ * -using property (highest priority)
+ * -not defined (-1 by convention), case when still using apm volume tables XML files
+ * @param stream to be considered
+ * @param indexMin to set
+ * @param indexMax to set
+ */
+ virtual void initStreamVolume(audio_stream_type_t stream, int indexMin, int indexMax);
virtual status_t setStreamVolumeIndex(audio_stream_type_t stream,
int index,
audio_devices_t device);