重新分配std :: simel_ptr＆lt; qaudiobuffer＆gt;成员导致堆腐败

Question

我在尝试将智能指针成员构造为std :: simolor_ptr＆lt; qaudiobuffer＆gt;时遇到了问题。

在按钮中分配了这一点，请单击QT插槽，如下所示：

void
MainWindow::on_start_clicked() {
    // second time this occurs HEAP corruption inside createAudioBuffer function
    mpAudioBuffer = createAudioBuffer(*mpAudioConfig);
    ...
}

Qaudiobuffer智能指针第一次分配时可以正常工作，但是当重新分配时（通过成员fn creat> createAudioBuffer < /code>）由于audioconfig参数的更改，该参数会导致sizeinbytes更改，因此std :: make_unique＆lt; qaudiobuffer＆gt;（...）在Visual Studio中导致heap_corruption_detected弹出对话框崩溃。

此崩溃在数组eleter中与分配的const auto data = std :: make_unique＆lt; char []＆gt;（sizeinbytes）此堆分配的智能指针阵列与长度参数一起传递给该堆分配的智能指针阵列 QByTearray应该在哪里进行深入复制，但是崩溃似乎指向某个地方的一些双重删除。

std::unique_ptr<QAudioBuffer>
MainWindow::createAudioBuffer(const AudioConfig& rConfig) const
{
    const auto bytesPerSample =
        (rConfig.sampleFormat == SampleFormat::Uint8) ? 1 :
        (rConfig.sampleFormat == SampleFormat::Int32) ? 4 :
        (rConfig.sampleFormat == SampleFormat::Int16) ? 2 : -1;
    const auto sizeInBytes = bytesPerSample * rConfig.channelCount * rConfig.frameCount;
    // allocate raw data for the QByteArray which is passed into the QAudioBuffer ctor.
    const auto data = std::make_unique<char[]>(sizeInBytes);
    // TODO initialize data here
    return std::make_unique<QAudioBuffer>(QByteArray(
        data.get(), sizeInBytes), [&rConfig]()-> QAudioFormat {
            // use lambda to initialize member - no need for separate
            // QAudioFormat object as embedded into test QAudioBuffer
            QAudioFormat format;
            format.setSampleRate(static_cast<int>(rConfig.sampleRate));
            format.setChannelCount(static_cast<int>(rConfig.channelCount));
            format.setSampleFormat(QAudioFormat::Int32);
            return format;
        }());
}

相应的堆栈跟踪如下：

ucrtbased.dll!free_dbg_nolock(void * const block, const int block_use) Line 952 C++
ucrtbased.dll!_free_dbg(void * block, int block_use) Line 1030  C++
afdx.exe!operator delete(void * block) Line 38  C++
afdx.exe!operator delete[](void * block) Line 32    C++
afdx.exe!std::default_delete<char [0]>::operator()<char,0>(char * _Ptr) Line 3156   C++
afdx.exe!std::unique_ptr<char [0],std::default_delete<char [0]>>::~unique_ptr<char [0],std::default_delete<char [0]>>() Line 3390   C++
afdx.exe!MainWindow::createAudioBuffer(const AudioConfig & rConfig) Line 544    C++