1 /*
2  * Copyright (C) 2017 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 AAUDIO_SERVICE_ENDPOINT_PLAY_H
18 #define AAUDIO_SERVICE_ENDPOINT_PLAY_H
19 
20 #include <atomic>
21 #include <functional>
22 #include <mutex>
23 #include <vector>
24 
25 #include "client/AudioStreamInternal.h"
26 #include "client/AudioStreamInternalPlay.h"
27 #include "binding/AAudioServiceMessage.h"
28 #include "AAudioServiceEndpointShared.h"
29 #include "AAudioServiceStreamShared.h"
30 #include "AAudioServiceStreamMMAP.h"
31 #include "AAudioMixer.h"
32 #include "AAudioService.h"
33 
34 namespace aaudio {
35 
36 /**
37  * Contains a mixer and a stream for writing the result of the mix.
38  */
39 class AAudioServiceEndpointPlay : public AAudioServiceEndpointShared {
40 public:
41     explicit AAudioServiceEndpointPlay(android::AAudioService &audioService);
42 
43     aaudio_result_t open(const aaudio::AAudioStreamRequest &request) override;
44 
45     void *callbackLoop() override;
46 
47 private:
48     AudioStreamInternalPlay  mStreamInternalPlay; // for playing output of mixer
49     bool                     mLatencyTuningEnabled = false; // TODO implement tuning
50     AAudioMixer              mMixer;    //
51 };
52 
53 } /* namespace aaudio */
54 
55 #endif //AAUDIO_SERVICE_ENDPOINT_PLAY_H
56