1 /*
2  * Copyright 2021 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package android.media;
18 
19 import android.media.SpatializationLevel;
20 import android.media.SpatializerHeadTrackingMode;
21 
22 /**
23  * The INativeSpatializerCallback interface is a callback associated to the
24  * ISpatializer interface. The callback is used by the spatializer
25  * implementation in native audio server to communicate state changes to the
26  * client controlling the spatializer with the ISpatializer interface.
27  * {@hide}
28  */
29 oneway interface INativeSpatializerCallback {
30     /** Called when the spatialization level applied by the spatializer changes
31      * (e.g. when the spatializer is enabled or disabled)
32      */
onLevelChanged(SpatializationLevel level)33     void onLevelChanged(SpatializationLevel level);
34 
35     /** Called when the output stream the Spatializer is attached to changes.
36      * Indicates the IO Handle of the new output.
37      */
onOutputChanged(int output)38     void onOutputChanged(int output);
39 }
40