1 /*
2  * Copyright (C) 2021 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 #pragma once
18 
19 #include <stddef.h>
20 
21 namespace cuttlefish {
22 
23 namespace webrtc_streaming {
24 
25 // Interface to provide access to a stream originated on the client.
26 class AudioSource {
27  public:
28   // Returns the number of bytes read or a negative number in case of errors. If
29   // muted is set to true, the contents of data should be considered to be all
30   // 0s.
31   virtual int GetMoreAudioData(void* data, int bytes_per_sample,
32                                int samples_per_channel, int num_channels,
33                                int sample_rate, bool& muted) = 0;
34 
35  protected:
36   virtual ~AudioSource() = default;
37 };
38 
39 }  // namespace webrtc_streaming
40 }  // namespace cuttlefish
41