gst-thumbnailers-1.0.alpha.1.tar.xz	https://download.gnome.org/sources/gst-thumbnailers/1.0/gst-thumbnailers-1.0.alpha.1.tar.xz
gst-thumbnailers-1.0.alpha.3.tar.xz	https://download.gnome.org/sources/gst-thumbnailers/1.0/gst-thumbnailers-1.0.alpha.3.tar.xz