判断磁盘空间

来源：互联网发布：阿里云邮箱在线客服编辑：程序博客网时间：2024/05/22 17:03

bool MainWindow::outputDiskSpace(const QString& strDestination,const QModelIndexList& lstConvertItems)
{
    FfVideoModel* pFfVideoModel = ui->ffVideoForm->ffVideoModel();
    FfVideoModelItem* pItem = NULL;
    // 选出下一个可用项
    int v=0,a=0,l_time=0;
    unsigned   __int64 total=0;
    for (int i=0;i<lstConvertItems.size();i++)
    {

        QModelIndex index = lstConvertItems.at(i);
        pItem = pFfVideoModel->itemByModelIndex(index);
        int m_nOutputIndex=0;

        // 通过output决定
        COOutput* pOOutput = pItem->output(m_nOutputIndex, true);

        CIInput* pIInputs = NULL;
        int nInputCount =pItem->inputList(NULL, 0);
        pIInputs = new CIInput[nInputCount];
        pItem->inputList(pIInputs, nInputCount);

        if (!g_pSettings->isRegistered())
        {
            // 非注册版本转换限制
            for (int i = 0; i < nInputCount; i++)
            {
                double dConvertLength = pIInputs[i].trimLength;
                if (dConvertLength < 0.5)
                    dConvertLength = pIInputs[i].mi.duration;

                if (dConvertLength > 300.0)
                    pIInputs[i].trimLength = 300.0;
                else
                    pIInputs[i].trimLength = dConvertLength / 2;
            }
        }

        int nConvertLength = 0;

        for (int i = 0; i < nInputCount; i++)
        {
            nConvertLength += pIInputs[i].trimLength;
        }
        l_time=nConvertLength;                                           // video or audio 播放时间长度
        a=pOOutput->profile.audioBitrate;                                   // audio bitrate
        v=pOOutput->profile.videoBitrate;                                   // video bitrate
        total+=(v+a)/8*l_time;

    }

    unsigned   __int64   i1,i2,i3;
    char chBuf[100];
    GetDiskFreeSpaceEx( _TEXT("c: "),(PULARGE_INTEGER)&i1,(PULARGE_INTEGER)&i2,(PULARGE_INTEGER)&i3);
    i2 = i2 >> 20;                                                       //磁盘空间剩余容量

    //转换后的大小以MB为单位
    total = total >> 20;

    QDir dirDestination(strDestination);

    if(i2-total<2)
    {

        if (AkMessageBox::question(this, g_pProductInfo->productName(), tr("/"%1/" disk space may be insufficient. Are you sure to convert?").arg(dirDestination.canonicalPath ().left(3)), QDialogButtonBox::Ok | QDialogButtonBox::Cancel) != QDialogButtonBox::Ok)
            return false;
        else
            return true;
    }
    else
    {
        return true;
    }
}