在ADTF开发中使用MDF4文件进行数据流分析时，可能会遇到“Unable to resolve substream”错误。这是由于在访问MDF4文件中的数据流时缺少元数据信息导致的。该错误可以通过添加元数据信息来解决。

以下是一个示例代码片段，演示了如何添加元数据信息和解决“Unable to resolve substream”错误：

tResult PrepareStream(eMode eModeSub, const std::string& strStreamName)
{
    // Get the stream from the configuration
    object_ptr pStreamType;
    RETURN_IF_FAILED(GetSignalType(strStreamName.c_str(), &pStreamType));

    object_ptr pStreamTypeDyn;
    RETURN_IF_FAILED(pStreamType->GetDynamicInterface(iid, reinterpret_cast(&pStreamTypeDyn)));
    
    // Retrieve the meta data
    object_ptr pStreamDescription;
    RETURN_IF_FAILED(CreateStreamDescription(strStreamName, pStreamType, pStreamDescription));
    
    object_ptr pStreamOptions;
    if (IS_OK(pStreamDescription->GetElement(OPTIONS_NAME, &pStreamOptions)))
    {
        object_ptr pStreamOptionsItf;
        RETURN_IF_FAILED(pStreamOptions->QueryInterface(IID_IStreamOptions, reinterpret_cast(&pStreamOptionsItf)));
        
        tInt32 iSegmentSize = 0;
        RETURN_IF_FAILED(pStreamOptionsItf->GetProperty("InSegmentSize", &iSegmentSize));
        
        // Add the meta data
        object_ptr pStreamTypeOut;
        RETURN_IF_FAILED(CreateStreamType(this, "tType", "tTypeImport", pStreamType->GetDescription()));
        RETURN_IF_FAILED(pStreamTypeOut->GetDynamicInterface(iid, reinterpret_cast(&pStreamTypeDyn)));
        
        object_ptr pStreamOptionsOut;
        RETURN_IF_FAILED(CreateStreamOptions(this, "tOptions", "tOptionsImport", pStreamOptions));
        pStreamOptionsOut = make_object_ptr();