1 /*
2  * Copyright 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 AUDIO_INPUT_STREAM_OPENSL_ES_H_
18 #define AUDIO_INPUT_STREAM_OPENSL_ES_H_
19 
20 
21 #include <SLES/OpenSLES.h>
22 #include <SLES/OpenSLES_Android.h>
23 
24 #include "oboe/Oboe.h"
25 #include "AudioStreamOpenSLES.h"
26 
27 namespace oboe {
28 
29 /**
30  * INTERNAL USE ONLY
31  */
32 
33 class AudioInputStreamOpenSLES : public AudioStreamOpenSLES {
34 public:
35     AudioInputStreamOpenSLES();
36     explicit AudioInputStreamOpenSLES(const AudioStreamBuilder &builder);
37 
38     virtual ~AudioInputStreamOpenSLES();
39 
40     Result open() override;
41     Result close() override;
42 
43     Result requestStart() override;
44     Result requestPause() override;
45     Result requestFlush() override;
46     Result requestStop() override;
47 
48 protected:
49     Result requestStop_l();
50 
51     Result updateServiceFrameCounter() override;
52 
53     void updateFramesWritten() override;
54 
55 private:
56 
57     SLuint32 channelCountToChannelMask(int chanCount) const;
58 
59     Result setRecordState_l(SLuint32 newState);
60 
61     SLRecordItf mRecordInterface = nullptr;
62 };
63 
64 } // namespace oboe
65 
66 #endif //AUDIO_INPUT_STREAM_OPENSL_ES_H_
67