- m_capture.v4l_formats->addItem("[" + format + "] " + itemSize + " (" + itemRates.at(k) + ")", QStringList() << format << itemSize.section('x', 0, 0) << itemSize.section('x', 1, 1) << itemRates.at(k).section('/', 0, 0) << itemRates.at(k).section('/', 1, 1));
+ QString formatDescription = "[" + format + "] " + itemSize + " (" + itemRates.at(k) + ")";
+ if (m_capture.v4l_formats->findText(formatDescription) == -1)
+ m_capture.v4l_formats->addItem(formatDescription, QStringList() << format << itemSize.section('x', 0, 0) << itemSize.section('x', 1, 1) << itemRates.at(k).section('/', 0, 0) << itemRates.at(k).section('/', 1, 1));