GST_CLOCK_UNSUPPORTED  460 gst/gstclock.c     return GST_CLOCK_UNSUPPORTED;
GST_CLOCK_UNSUPPORTED  531 gst/gstclock.c     return GST_CLOCK_UNSUPPORTED;
GST_CLOCK_UNSUPPORTED  186 win32/common/gstenumtypes.c     {C_ENUM (GST_CLOCK_UNSUPPORTED), "GST_CLOCK_UNSUPPORTED", "unsupported"},