eden-miror/externals/oboe/samples/minimaloboe/src/main/cpp/SimpleNoiseMaker.h
swurl 6c655321e6
Move dead submodules in-tree
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2025-05-31 02:33:02 -04:00

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C++

/*
* Copyright 2022 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 SIMPLE_NOISE_MAKER_H
#define SIMPLE_NOISE_MAKER_H
#include "oboe/Oboe.h"
/**
* Play white noise using Oboe.
*/
class SimpleNoiseMaker {
public:
/**
* Open an Oboe stream.
* @return OK or negative error code.
*/
oboe::Result open();
oboe::Result start();
oboe::Result stop();
oboe::Result close();
private:
class MyDataCallback : public oboe::AudioStreamDataCallback {
public:
oboe::DataCallbackResult onAudioReady(
oboe::AudioStream *audioStream,
void *audioData,
int32_t numFrames) override;
};
class MyErrorCallback : public oboe::AudioStreamErrorCallback {
public:
MyErrorCallback(SimpleNoiseMaker *parent) : mParent(parent) {}
virtual ~MyErrorCallback() {
}
void onErrorAfterClose(oboe::AudioStream *oboeStream, oboe::Result error) override;
private:
SimpleNoiseMaker *mParent;
};
std::shared_ptr<oboe::AudioStream> mStream;
std::shared_ptr<MyDataCallback> mDataCallback;
std::shared_ptr<MyErrorCallback> mErrorCallback;
static constexpr int kChannelCount = 2;
};
#endif //SIMPLE_NOISE_MAKER_H