Sets @self into an error state using a printf()-style format string.
This is a utility function that calls [method@Gtk.MediaStream.gerror]. See that function for details.
error domain
error code
printf()-style format for error message
va_list of parameters for the message format
See Implementation
Sets @self into an error state using a printf()-style format string.
This is a utility function that calls [method@Gtk.MediaStream.gerror]. See that function for details.