void output_set_subtitle (const char *);
void output_set_filename (const char *);
const char *output_get_command_name (void);
char *output_get_uppercase_command_name (void);
void output_set_subtitle (const char *);
void output_set_filename (const char *);
const char *output_get_command_name (void);
char *output_get_uppercase_command_name (void);