Sets the font options used when rendering text with this context. These options override any options that pango_cairo_update_context() derives from the target surface.
a gstreamer.Context, from a pangocairo font map
a cairo_font_options_t, or NULL to unset any previously set options. A copy is made.
1.10
Sets the font options used when rendering text with this context. These options override any options that pango_cairo_update_context() derives from the target surface.