unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls,shellapi,FileCtrl;

type
  TForm1 = class(TForm)
    Edit1: TEdit;
    Label1: TLabel;
    Button1: TButton;
    ComboBox1: TComboBox;
    Label2: TLabel;
    Label3: TLabel;
    Edit2: TEdit;
    Label4: TLabel;
    Button2: TButton;
    SaveDialog1: TSaveDialog;
    Label5: TLabel;
    ComboBox2: TComboBox;
    Button3: TButton;
    Label6: TLabel;
    Button4: TButton;
    procedure Button2Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button2Click(Sender: TObject);
var
s,d:string;
begin
{IF SAVEDIALOG1.EXECUTE  THEN
EDIT2.Text:=SAVEDIALOG1.FILENAME
ELSE
BEGIN
END;}



SelectDirectory('Seleccionar directorio','',s);
 s:= s+'\';
d := StringReplace(s, '\\', '\',[rfReplaceAll, rfIgnoreCase]);
edit2.text:=d;


end;

procedure TForm1.FormCreate(Sender: TObject);
var
str,file1,file2:string;
begin
str:=ExtractFilePath(Application.ExeName);

      file1:=(str+'binarios\youtube-dl.exe');

if  fileexists(file1) )then begin

end
else
begin
showmessage ('archivos no se encuentran'+#13#10+
'en el directorio binarios'#13#10+
'cerrando aplicacion');
Application.Terminate;

end;
  end;
procedure TForm1.Button1Click(Sender: TObject);
var
str, calidad,parametros, file1:string;
begin

  str:=ExtractFilePath(Application.ExeName);
     file1:=(str+'binarios\youtube-dl.exe');
   if combobox1.ItemIndex=0 then
   calidad:='136';
   if combobox1.ItemIndex=1 then
   calidad:='137';
   //el audio seria predefinido por el momento
    parametros:=' -f '+calidad+'+140 '+edit1.text +' -o "'+ edit2.text+'%(title)s.%(ext)s"' ;
    //showmessage(parametros);
ShellExecute(handle, 'open', pchar(file1), pchar(parametros), nil, SW_SHOWNORMAL) ;
end;

procedure TForm1.Button3Click(Sender: TObject);
   var
str, calidad,parametros, file1:string;
begin
  str:=ExtractFilePath(Application.ExeName);
     file1:=(str+'binarios\youtube-dl.exe');
   if combobox2.ItemIndex=0 then
   calidad:='240';
   if combobox2.ItemIndex=1 then
   calidad:='380';
   if combobox2.ItemIndex=2 then
   calidad:='480';
   if combobox2.ItemIndex=3 then
   calidad:='720';
   //el audio seria predefinido por el momento
    parametros:=' -f '+calidad+' '+edit1.text +' -o "'+ edit2.text+'%(title)s.%(ext)s"' ;
    //showmessage(parametros);
ShellExecute(handle, 'open', pchar(file1), pchar(parametros), nil, SW_SHOWNORMAL) ;
end;

end.