1/* Copyright (C) 2014 The Android Open Source Project
2 *
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *      http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16package android.media.audiopolicy;
17
18import android.media.AudioFocusInfo;
19
20/**
21 * @hide
22 */
23oneway interface IAudioPolicyCallback {
24
25    // callbacks for audio focus listening
26    void notifyAudioFocusGrant(in AudioFocusInfo afi, int requestResult);
27    void notifyAudioFocusLoss(in AudioFocusInfo afi, boolean wasNotified);
28    // callback for audio focus policy
29    void notifyAudioFocusRequest(in AudioFocusInfo afi, int requestResult);
30    void notifyAudioFocusAbandon(in AudioFocusInfo afi);
31
32    // callback for mix activity status update
33    void notifyMixStateUpdate(in String regId, int state);
34
35    // callback for volume events
36    void notifyVolumeAdjust(int adjustment);
37}
38