[Multimédia] Enregistrer un flux audio venant d'une URL dans un tampon/fichier

Pour ceux que ça intéresse ou qui auraient la même problématique la solution m'a été donné par eyllanesc sur Stack Overflow :

Code:

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#include <QCoreApplication>
#include <QDataStream>
#include <QDir>
#include <QFile>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QStandardPaths>
 
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
 
    QNetworkAccessManager nam;
 
    QNetworkRequest request(QUrl("http://rfm-live-mp3-64.scdn.arkena.com/rfm.mp3"));
 
    QString downloadDir = QStandardPaths::writableLocation(QStandardPaths::DownloadLocation);
 
    QFile file(QDir(downloadDir).absoluteFilePath("test.mp3"));
 
    QDataStream ds(&file);
 
    if(!file.open(QFile::WriteOnly))
        return -1;
 
    QNetworkReply *reply = nam.get(request);
    QObject::connect(reply, &QNetworkReply::downloadProgress, [reply, &ds](qint64 bytesReceived, qint64 bytesTotal){
        ds << reply->readAll();
        qDebug()<<bytesReceived<<bytesTotal;
    });
 
    qDebug()<<reply;
 
    return a.exec();
}