Qt 实现视频监控系统

void frmVideoUpload::addItem(const QString &name, const QString &data)

{

    int row = fileNames.count();

    QString fileName = data + "/" + name;

    fileNames << fileName;

    //复选框,如果勾选了全选则自动选中当前设备

    QCheckBox *itemCk = new QCheckBox(this);

    itemCk->setChecked(ckAll->isChecked());

    //添加文件名称

    QTableWidgetItem *itemFile = new QTableWidgetItem;

    itemFile->setText(name);

    itemFile->setData(Qt::UserRole, QString(data));

    itemFile->setTextAlignment(Qt::AlignCenter);

    //添加文件大小

    QTableWidgetItem *itemSize = new QTableWidgetItem;

    quint64 size = QFile(fileName).size();

    itemSize->setText(TcpFileHelper::getFileSizeMB(size));

    itemSize->setTextAlignment(Qt::AlignCenter);

    //添加单位

    QTableWidgetItem *itemUnit = new QTableWidgetItem;

    itemUnit->setText("MB");

    itemUnit->setTextAlignment(Qt::AlignCenter);

    //增加进度条

    QProgressBar *itemBar = new QProgressBar(this);

    itemBar->setRange(0, size);

    itemBar->setValue(0);

    ui->tableWidget->setCellWidget(row, 0, itemCk);

    ui->tableWidget->setItem(row, 1, itemFile);

    ui->tableWidget->setItem(row, 2, itemSize);

    ui->tableWidget->setItem(row, 3, itemUnit);

    ui->tableWidget->setCellWidget(row, 4, itemBar);

}

void frmVideoUpload::on_btnSelect_clicked()

{

    QDate dateStart = ui->dateStart->date();

    QDate dateEnd = ui->dateEnd->date();

    if (dateStart > dateEnd) {

        QUIHelper::showMessageBoxError("开始时间不能大于结束时间!", 3);

        return;

    }

    //将日期转换为日期时间计算相差的天数,超过最大天数则提示不用继续

    if (dateStart.daysTo(dateEnd) >= 60) {

        QUIHelper::showMessageBoxError("每次最大只能查询60天内!", 3);

        return;

    }

    fileNames.clear();

    ui->tableWidget->clearContents();

    QString filePath;

    if (ui->cboxType->currentText() == "存储视频") {

        filePath = AppData::VideoNormalPath;

    } else {

        filePath = AppData::VideoAlarmPath;

    }

    //获取所有文件夹名称,根据时间查询对应通道对应类型视频

    //如果开始时间小于或者等于结束时间,则将开始时间对应文件夹下的视频文件添加到列表

    //然后将开始时间加一天,直到大于结束时间

    while (dateStart <= dateEnd) {

        //生成对应日期的文件夹

        QString savePath = QString("%1/%2").arg(filePath).arg(dateStart.toString("yyyy-MM-dd"));

        QDir saveDir(savePath);

        //判断文件夹是否存在

        if (saveDir.exists()) {

            //指定文件拓展名过滤,按照时间升序排序

            QStringList filter;

            filter << "*.mp4" << "*.h264";

            QStringList names = saveDir.entryList(filter, QDir::NoFilter, QDir::Time | QDir::Reversed);

            foreach (QString name, names) {

                //如果是选择的所有通道,则不过滤视频文件

                if (ui->cboxCh->currentText() == "所有通道") {

                    addItem(name, savePath);

                } else {

                    //对应通道的视频文件添加进来

                    QString videoCh = name.split("_").first();

                    QString chName = QString("Ch%1").arg(ui->cboxCh->currentIndex());

                    if (videoCh == chName) {

                        addItem(name, savePath);

                    }

                }

            }

        }

        dateStart = dateStart.addDays(1);

    }

}

void frmVideoUpload::on_btnUpload_clicked()

{

    //过滤选中的文件

    int fileCount = fileNames.count();

    QList<QString> files;

    QList<QProgressBar *> bars;

    for (int row = 0; row < fileCount; row++) {

        QString fileName = fileNames.at(row);

        QCheckBox *itemCk = (QCheckBox *)ui->tableWidget->cellWidget(row, 0);

        QProgressBar *bar = (QProgressBar *)ui->tableWidget->cellWidget(row, 4);

        bar->setValue(0);

        if (itemCk && itemCk->isChecked()) {

            files << fileName;

            bars << bar;

        }

    }

    int count = files.count();

    if (count == 0) {

        QUIHelper::showMessageBoxError("没有选中设备!", 3);

        return;

    }

    //每个上传都一个线程

    for (int i = 0; i < count; i++) {

        TcpSendFileThread *sendFileThread = new TcpSendFileThread(this);

        sendFileThread->setFileName(fileNames.at(i));

        //网络不好可以自行调整每次发的包的大小

        sendFileThread->setMaxPackageSize(0xFFFF);

        sendFileThread->setReceiveIP(AppConfig::UploadHost);

        sendFileThread->setReceivePort(AppConfig::UploadPort);

        sendFileThread->setProgressBar(bars.at(i));

        sendFileThread->start();

    }

}