QDomElement prod = producers.at(i).toElement();
if (EffectsList::property(prod, "mlt_service") == "avformat-novalidate")
EffectsList::setProperty(prod, "mlt_service", "avformat");
QDomElement prod = producers.at(i).toElement();
if (EffectsList::property(prod, "mlt_service") == "avformat-novalidate")
EffectsList::setProperty(prod, "mlt_service", "avformat");