StaticAudioTrackState.h revision 5c4cc0d99d3b1cb35c5d7c237272ee53142745fb 
1/*
2 * Copyright (C) 2012 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#ifndef STATIC_AUDIO_TRACK_STATE_H
18#define STATIC_AUDIO_TRACK_STATE_H
19
20namespace android {
21
22// Represents a single state of an AudioTrack that was created in static mode (shared memory buffer
23// supplied by the client).  This state needs to be communicated from the client to server.  As this
24// state is too large to be updated atomically without a mutex, and mutexes aren't allowed here, the
25// state is wrapped by a SingleStateQueue.
26struct StaticAudioTrackState {
27    // do not define constructors, destructors, or virtual methods
28    size_t  mLoopStart;
29    size_t  mLoopEnd;
30    int     mLoopCount;
31};
32
33}   // namespace android
34
35#endif  // STATIC_AUDIO_TRACK_STATE_H
36