1 /*
2  * Copyright 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 #ifndef MEGA_PLAYER_SILENCEAUDIOSOURCE_H
18 #define MEGA_PLAYER_SILENCEAUDIOSOURCE_H
19 
20 #include "AudioSource.h"
21 
22 class SilenceAudioSource: public AudioSource {
23 public:
SilenceAudioSource()24     SilenceAudioSource() {}
~SilenceAudioSource()25     virtual ~SilenceAudioSource() {}
26 
27     /**
28      * Fills the specified buffer with silence.
29      *
30      * @param buffer The buffer to be filled.
31      * @param numFrames The number of frames of audio to provide.
32      * @param numChans The number of channels (in the buffer) required by the player.
33      * @return  The number of samples generated.This will always be <code>numFrames</code>.
34      */
35     virtual int pull(float* buffer, int numFrames, int numChans) override;
36 };
37 
38 #endif // MEGA_PLAYER_SILENCEAUDIOSOURCE_H
39