qt ffmpeg推流flv

以下是使用Qt和FFmpeg推流flv的示例代码：

#include <QCoreApplication>
#include <QDebug>
#include <QThread>
#include <QTimer>
#include <QDateTime>
#include <QProcess>

class FFmpegPusher : public QObject
{
    Q_OBJECT
public:
    explicit FFmpegPusher(QObject *parent = nullptr) : QObject(parent) {}

    void start(QString ipAddress, QString pushAddress)
    {
        QString command = QString("ffmpeg -i %1 -f flv %2").arg(ipAddress).arg(pushAddress);
        qDebug() << "Command:" << command;

        m_process = new QProcess(this);
        connect(m_process, &QProcess::readyReadStandardOutput, this, &FFmpegPusher::onReadyReadStandardOutput);
        connect(m_process, &QProcess::readyReadStandardError, this, &FFmpegPusher::onReadyReadStandardError);
        connect(m_process, QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished), this, &FFmpegPusher::onFinished);

        m_process->start(command);
    }

private slots:
    void onReadyReadStandardOutput()
    {
        qDebug() << "Standard Output:" << m_process->readAllStandardOutput();
    }

    void onReadyReadStandardError()
    {
        qDebug() << "Standard Error:" << m_process->readAllStandardError();
    }

    void onFinished(int exitCode, QProcess::ExitStatus exitStatus)
    {
        qDebug() << "Process Finished with Exit Code:" << exitCode << "Exit Status:" << exitStatus;
    }

private:
    QProcess *m_process = nullptr;
};

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    FFmpegPusher pusher;
    pusher.start("rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov", "rtmp://live.hkstv.hk.lxdns.com/live/hks");

    return a.exec();
}

该示例代码使用Qt的QProcess类来启动FFmpeg进程，并将其输出重定向到标准输出和标准错误流。您可以根据需要修改IP地址和推送地址。请确保已正确安装FFmpeg并将其添加到系统路径中。