在Vmware里用Qt实现在Vmware里用Qt实现 视频监控服务器端的代码 基本要求：1.能通过网络控制播放监控视频。 2.服务器端改成多线程，一个线程负责接受指令，主线程负责处理采集、压缩、传输。 3.能够多个客户端同时观看监控视频。相关操作及代码

以下是一个基本的实现思路和代码示例，仅供参考。

1. 服务器端实现：

#include <QtNetwork>
#include <QtMultimedia>

class VideoServer : public QObject
{
    Q_OBJECT
public:
    VideoServer(QObject *parent = nullptr);

public slots:
    void acceptConnection();
    void readData();
    void sendFrame(QTcpSocket *socket, const QVideoFrame &frame);

private:
    QCamera *m_camera;
    QList<QTcpSocket *> m_clients;
    QTcpServer *m_server;
};

VideoServer::VideoServer(QObject *parent)
    : QObject(parent)
{
    // 初始化摄像头
    m_camera = new QCamera(this);
    m_camera->setCaptureMode(QCamera::CaptureMode::CaptureVideo);
    m_camera->start();

    // 初始化TCP服务器
    m_server = new QTcpServer(this);
    connect(m_server, &QTcpServer::newConnection, this, &VideoServer::acceptConnection);
    if (!m_server->listen(QHostAddress::Any, 12345)) {
        qWarning() << "Failed to start server:" << m_server->errorString();
        return;
    }
    qInfo() << "Server started:" << m_server->serverAddress() << m_server->serverPort();
}

void VideoServer::acceptConnection()
{
    QTcpSocket *socket = m_server->nextPendingConnection();
    connect(socket, &QTcpSocket::readyRead, this, &VideoServer::readData);
    m_clients.append(socket);
    qInfo() << "New client connected:" << socket->peerAddress() << socket->peerPort();
}

void VideoServer::readData()
{
    QTcpSocket *socket = qobject_cast<QTcpSocket *>(sender());
    if (!socket) {
        return;
    }

    QByteArray data = socket->readAll();
    if (data == "play") {
        // 发送视频数据到客户端
        QVideoFrame frame = m_camera->service()->requestFrame(
            /*timeout=*/std::numeric_limits<int>::max());
        sendFrame(socket, frame);
    } else if (data == "stop") {
        // 停止发送视频数据
    } else {
        // 其他指令
    }
}

void VideoServer::sendFrame(QTcpSocket *socket, const QVideoFrame &frame)
{
    QByteArray data;
    QBuffer buffer(&data);
    buffer.open(QIODevice::WriteOnly);
    QVideoFrame cloneFrame(frame);
    cloneFrame.map(QAbstractVideoBuffer::ReadOnly);
    QImage image(cloneFrame.bits(), cloneFrame.width(), cloneFrame.height(),
                 cloneFrame.bytesPerLine(), QVideoFrame::imageFormatFromPixelFormat(cloneFrame.pixelFormat()));
    image.save(&buffer, "JPEG");
    buffer.close();

    for (QTcpSocket *client : qAsConst(m_clients)) {
        if (client == socket) {
            continue;
        }
        client->write(data);
    }
}

2. 客户端实现：

#include <QtNetwork>
#include <QtMultimedia>

class VideoClient : public QObject
{
    Q_OBJECT
public:
    VideoClient(QObject *parent = nullptr);

public slots:
    void connectToServer();
    void readData();

private:
    QMediaPlayer *m_player;
    QTcpSocket *m_socket;
};

VideoClient::VideoClient(QObject *parent)
    : QObject(parent)
{
    // 初始化播放器
    m_player = new QMediaPlayer(this);

    // 初始化TCP客户端
    m_socket = new QTcpSocket(this);
    connect(m_socket, &QTcpSocket::connected, this, &VideoClient::connectToServer);
    connect(m_socket, &QTcpSocket::readyRead, this, &VideoClient::readData);
    m_socket->connectToHost(QHostAddress("127.0.0.1"), 12345);
}

void VideoClient::connectToServer()
{
    m_socket->write("play");
}

void VideoClient::readData()
{
    QByteArray data = m_socket->readAll();
    QImage image;
    image.loadFromData(data);
    m_player->setVideoOutput(new QVideoWidget);
    m_player->setMedia(QMediaContent(), &data);
    m_player->play();
}

注意：以上代码仅为示例，实际项目中需要根据具体需求进行修改和优化。同时，网络编程和多线程编程需要注意线程安全和资源管理等问题，需要仔细测试和调试。