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 "AAudioServiceStreamShared.h"
29 #include "AAudioServiceStreamMMAP.h"
30 #include "AAudioMixer.h"
31 #include "AAudioService.h"
32 
33 namespace aaudio {
34 
35 class AAudioServiceEndpointPlay : public AAudioServiceEndpoint {
36 public:
37     explicit AAudioServiceEndpointPlay(android::AAudioService &audioService);
38     virtual ~AAudioServiceEndpointPlay();
39 
40     aaudio_result_t open(int32_t deviceId) override;
41 
getStreamInternal()42     AudioStreamInternal *getStreamInternal() override {
43         return &mStreamInternalPlay;
44     }
45 
46     void *callbackLoop() override;
47 
48 private:
49     AudioStreamInternalPlay  mStreamInternalPlay; // for playing output of mixer
50     bool                     mLatencyTuningEnabled = false; // TODO implement tuning
51     AAudioMixer              mMixer;    //
52 };
53 
54 } /* namespace aaudio */
55 
56 #endif //AAUDIO_SERVICE_ENDPOINT_PLAY_H
57