ffs["-an"] = "-y";
ffs["-passlogfile"] = Glib::path_get_dirname (outfn) + G_DIR_SEPARATOR + "ffmpeg2pass";
ffs["-f"] = get_file_extension(invid).empty()?"mov":get_file_extension(invid);
-#ifdef _OS_WIN32
+#ifdef PLATFORM_WINDOWS
outfn = "NUL";
#else
outfn = "/dev/null";