xref: /aosp_15_r20/cts/apps/CtsVerifier/jni/megaaudio/player/SilenceAudioSource.h (revision b7c941bb3fa97aba169d73cee0bed2de8ac964bf)

/*
 * Copyright 2021 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef MEGA_PLAYER_SILENCEAUDIOSOURCE_H
#define MEGA_PLAYER_SILENCEAUDIOSOURCE_H

#include "AudioSource.h"

class SilenceAudioSource: public AudioSource {
public:
    SilenceAudioSource() {}
    virtual ~SilenceAudioSource() {}

    /**
     * Fills the specified buffer with silence.
     *
     * @param buffer The buffer to be filled.
     * @param numFrames The number of frames of audio to provide.
     * @param numChans The number of channels (in the buffer) required by the player.
     * @return  The number of samples generated.This will always be <code>numFrames</code>.
     */
    virtual int pull(float* buffer, int numFrames, int numChans) override;
};

#endif // MEGA_PLAYER_SILENCEAUDIOSOURCE_H