-int ff_decklink_set_format(AVFormatContext *avctx, int width, int height, int tb_num, int tb_den, enum AVFieldOrder field_order, decklink_direction_t direction = DIRECTION_OUT, int num = 0);
-int ff_decklink_set_format(AVFormatContext *avctx, decklink_direction_t direction, int num);
+int ff_decklink_set_format(AVFormatContext *avctx, int width, int height, int tb_num, int tb_den, enum AVFieldOrder field_order, decklink_direction_t direction = DIRECTION_OUT);
+int ff_decklink_set_format(AVFormatContext *avctx, decklink_direction_t direction);