1 /*
2  * Copyright (C) 2016 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 AUDIOSOURCE_H_
18 #define AUDIOSOURCE_H_
19 
20 namespace ndkaudio {
21 
22 class AudioSource {
23  public:
24     AudioSource(int numChannels);
25     virtual ~AudioSource();
26 
getLastReadSize()27     int getLastReadSize() {
28         return lastReadSize_;
29     }
getNumChannels()30     int getNumChannels() {
31         return numChannels_;
32     }
getNumBufferFrames()33     int getNumBufferFrames() {
34         return numBuffFrames_;
35     }
36 
37     virtual int getData(long time, float * buff, int numFrames,
38                         int numChannels) =0;
39 
40  protected:
41     int numChannels_;
42     int lastReadSize_;
43     int numBuffFrames_;
44 };
45 
46 } //namespace ndkaudio
47 
48 #endif /* AUDIOSOURCE_H_ */
49