if (m_properties.contains("video_index")) m_baseTrackProducers[track]->set("video_index", m_properties.value("video_index").toInt());
if (m_properties.contains("audio_index")) m_baseTrackProducers[track]->set("audio_index", m_properties.value("audio_index").toInt());
m_baseTrackProducers[track]->set("id", QString(getId() + '_' + QString::number(track)).toUtf8().data());
if (m_properties.contains("video_index")) m_baseTrackProducers[track]->set("video_index", m_properties.value("video_index").toInt());
if (m_properties.contains("audio_index")) m_baseTrackProducers[track]->set("audio_index", m_properties.value("audio_index").toInt());
m_baseTrackProducers[track]->set("id", QString(getId() + '_' + QString::number(track)).toUtf8().data());