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/*
* 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.
*/
#include <stdlib.h>
#include "common/OboeDebug.h"
#include "TestErrorCallback.h"
using namespace oboe;
oboe::Result TestErrorCallback::open() {
mCallbackMagic = 0;
mDataCallback = std::make_shared<MyDataCallback>();
mErrorCallback = std::make_shared<MyErrorCallback>(this);
AudioStreamBuilder builder;
oboe::Result result = builder.setSharingMode(oboe::SharingMode::Exclusive)
->setPerformanceMode(oboe::PerformanceMode::LowLatency)
->setFormat(oboe::AudioFormat::Float)
->setChannelCount(kChannelCount)
#if 0
->setDataCallback(mDataCallback.get())
->setErrorCallback(mErrorCallback.get()) // This can lead to a crash or FAIL.
#else
->setDataCallback(mDataCallback)
->setErrorCallback(mErrorCallback) // shared_ptr avoids a crash
#endif
->openStream(mStream);
return result;
}
oboe::Result TestErrorCallback::start() {
return mStream->requestStart();
}
oboe::Result TestErrorCallback::stop() {
return mStream->requestStop();
}
oboe::Result TestErrorCallback::close() {
return mStream->close();
}
int TestErrorCallback::test() {
oboe::Result result = open();
if (result != oboe::Result::OK) {
return (int) result;
}
return (int) start();
}
DataCallbackResult TestErrorCallback::MyDataCallback::onAudioReady(
AudioStream *audioStream,
void *audioData,
int32_t numFrames) {
float *output = (float *) audioData;
// Fill buffer with random numbers to create "white noise".
int numSamples = numFrames * kChannelCount;
for (int i = 0; i < numSamples; i++) {
*output++ = (float)((drand48() - 0.5) * 0.2);
}
return oboe::DataCallbackResult::Continue;
}
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