Problem with qtconcurrent and signal & slots

My problem is: I have a class that inherits from QObject and a function object for use within the function mapped to run qtconcurrent but is not emitted any signal the threads while it's running. Sorry for my English.

Please post some code.

This is the function that use mapped

Code:

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Video* Convertir::convertir(Video *v){
    if (!v->getError()) {
        QString nombre_fichero = QDir::tempPath()+"/"+QFileInfo(v->getDireccion().path()).fileName();
 
        connect(proceso,SIGNAL(readyReadStandardError()),SLOT(procesarSalida()),Qt::DirectConnection);
        connect(this,SIGNAL(valorTotal(int)),v->getProgreso(),SLOT(setMaximum(int)),Qt::DirectConnection);
        connect(this,SIGNAL(valorProgreso(int)),v->getProgreso(),SLOT(setValue(int)),Qt::DirectConnection);
 
        QString f_conv =  QFileInfo(nombre_fichero).baseName()+"."+formato;
        QStringList parametros;
        if(formato == "avi" && calidad == "Alta"){
            parametros << "-i"<< nombre_fichero << "-sameq" << "-vcodec" << "mpeg2video" << "-y" << salida+f_conv;
        }else  if(formato == "mpg" && calidad == "Alta"){
            parametros << "-i"<< nombre_fichero << "-sameq" << "-y" << salida+f_conv;
        }else  if(formato == "avi" && calidad == "Baja"){
            parametros << "-i"<< nombre_fichero  << "-vcodec" << "mpeg2video"<< "-y" << salida+f_conv;
        }else
            parametros << "-i"<< nombre_fichero << "-y" << salida+f_conv;
        proceso->start("ffmpeg",parametros);
    }
    return v;
}

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This is the function object

Code:

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class Convierte{
 
public:
    typedef Video* result_type;
    Video* operator()(Video *v){
        Convertir *conv = new Convertir();
        conv->convertir(v);
        return v;
    }
};

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The first function belongs to the class Convertir and object function is in the Main Window.
Thanks in advance

And what signals are not emitted? How do you know they are not emitted?

It does not emit any signals. I tried to use qDebug () to print any message to signal QProcess issued readyReadStandardError, also I emitted any signal in the slot and print any message and nothing. I have no idea. I can not inherit from QObject in the function object because it says that the Q_OBJECT macro is private and can not be copied or something please help me with this. Thank you for your interest.

Quote:

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Originally Posted by angelito870523

It does not emit any signals.

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"It" meaning what?

Quote:

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I tried to use qDebug () to print any message to signal QProcess issued readyReadStandardError

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Are you expecting anything on stderr?

Quote:

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also I emitted any signal in the slot

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I don't see your code emitting any signals.

Quote:

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I can not inherit from QObject in the function object because it says that the Q_OBJECT macro is private and can not be copied or something please help me with this.

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Can't help you without seeing the code. I can just assume you were trying to copy a QObject based object.

that's a pretty obvious memory leak you have in covierte operator()...