framegrabber_.cpp

toi co the nghe nhac bang choung trinh nay phgan 2

//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop

#include "sysutils.hpp"
#include "FrameGrabber_.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma link "AMovie"
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
    : TForm(Owner)
//---------------------------------------------------------------------------
{
}

//---------------------------------------------------------------------------
void __fastcall TForm1::FormCreate(TObject *Sender)
//---------------------------------------------------------------------------
{
   FFrameCount = 0;
   StatusBar1->Panels->Items[0]->Text = " storage path: " + ActiveMovie1->StoragePath;
   if (! ActiveMovie1->IsDirectX8installed) {
      ShowMessage ("DirectX8 is not installed on this platform. Please download it from www.microsoft.com");
   }
   Edit5->Text = ActiveMovie1->StoragePath;
}

//---------------------------------------------------------------------------
void __fastcall TForm1::SpeedButton1Click(TObject *Sender)
//---------------------------------------------------------------------------
{
   OpenDialog1->Filter = "video clips";
   OpenDialog1->FileName = "*.mpg;*.mpeg;*.avi;*.wav;*.mp3;*.asf;*.wmv";
   if (OpenDialog1->Execute()) {
      Edit1->Text = OpenDialog1->FileName;
      ActiveMovie1->FileName = Edit1->Text;
      ActiveMovie1->Open();
   }
}

//---------------------------------------------------------------------------
void __fastcall TForm1::Button5Click(TObject *Sender)
//---------------------------------------------------------------------------
{
      ActiveMovie1->FileName = Edit1->Text;
      ActiveMovie1->Open();
}

//---------------------------------------------------------------------------
void __fastcall TForm1::Button8Click(TObject *Sender)
//---------------------------------------------------------------------------
{
   Edit1->Text = "http://www.Datastead.com/amovie/demo.mpeg";
   ActiveMovie1->FileName = Edit1->Text;
   ActiveMovie1->Open();
}

//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
//---------------------------------------------------------------------------
{
   ActiveMovie1->FGrabber_BurstCount = 0;
   ActiveMovie1->FGrabber_BurstMode = True;
   ActiveMovie1->FGrabber_BurstInterval = StrToIntDef (Edit4->Text, 1);
   ActiveMovie1->FGrabber_CaptureFrameTo (fcTBitmap);
   // the captured frames are returned by the OnFGrabberFrameCaptureCompleted event
}

//---------------------------------------------------------------------------
void __fastcall TForm1::ActiveMovie1FGrabberCaptureCompleted(
      TObject *Sender, Pointer Bitmap, TFrameCapture_Dest DestType,
      AnsiString FileName, WordBool Success)
//---------------------------------------------------------------------------
{
   switch (DestType) {
      case fcBmpFile:
         StatusBar1->Panels->Items[1]->Text = "File " + FileName + " created";
      break;

      case fcJpegFile:
         StatusBar1->Panels->Items[1]->Text = "File " + FileName + " created";
      break;

      case fcTBitmap:
         Image1->Width = ((Graphics::TBitmap*) Bitmap)->Width;
         Image1->Height = ((Graphics::TBitmap*) Bitmap)->Height;
         Image1->Picture->Assign ((Graphics::TBitmap*) Bitmap);
         FFrameCount ++;
         Edit2->Text = "  " + IntToStr (FFrameCount);
      break;
   }
}

//---------------------------------------------------------------------------
void __fastcall TForm1::ActiveMovie1OpenStateChange(TObject *Sender,
      int OldState, int NewState)
//---------------------------------------------------------------------------
{
   if (NewState == nsOpen) {
      Button1->Enabled = True;
      Button2->Enabled = True;
      Button3->Enabled = True;
      Button4->Enabled = True;
      Button6->Enabled = True;
      Button7->Enabled = True;
   }
   else {
      Button1->Enabled = False;
      Button2->Enabled = False;
      Button3->Enabled = False;
      Button4->Enabled = False;
      Button6->Enabled = False;
      Button7->Enabled = False;
   }
}

//---------------------------------------------------------------------------
void __fastcall TForm1::Button2Click(TObject *Sender)
//---------------------------------------------------------------------------
{
   ActiveMovie1->FGrabber_BurstMode = False;
}

//---------------------------------------------------------------------------
void __fastcall TForm1::Button3Click(TObject *Sender)
//---------------------------------------------------------------------------
{
   ActiveMovie1->Close();
}

//---------------------------------------------------------------------------
void __fastcall TForm1::Button4Click(TObject *Sender)
//------------------------------------------------------------------------------
// when FGrabber_Enabled is true, CaptureFrameToBitmap, CaptureFrameToImage,
// CaptureFrameToJPegFile and CaptureFrameToBmpFile uses the frame grabber
// synchronously (when the function returns, the capture is done, the
// OnFGrabberCaptureCompleted event is not used.
//------------------------------------------------------------------------------
{
   ActiveMovie1->CaptureFrameToImage (Image1);
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button6Click(TObject *Sender)
//---------------------------------------------------------------------------
{
   ActiveMovie1->FGrabber_BurstMode = True;
   ActiveMovie1->FGrabber_BurstCount = StrToIntDef (Edit3->Text, 1);
   ActiveMovie1->FGrabber_BurstInterval = StrToIntDef (Edit4->Text, 1);
   ActiveMovie1->FGrabber_CaptureFrameTo (fcJpegFile);
   // the captured file is returned by the OnFrameCaptureCompleted event->
}

//---------------------------------------------------------------------------
void __fastcall TForm1::Button7Click(TObject *Sender)
//---------------------------------------------------------------------------
{
   ActiveMovie1->FGrabber_BurstMode = True;
   ActiveMovie1->FGrabber_BurstCount = StrToIntDef (Edit3->Text, 1);
   ActiveMovie1->FGrabber_BurstInterval = StrToIntDef (Edit4->Text, 1);
   ActiveMovie1->FGrabber_CaptureFrameTo (fcBmpFile);
   // the captured file is returned by the OnFrameCaptureCompleted event->
}

//---------------------------------------------------------------------------
void __fastcall TForm1::Exit1Click(TObject *Sender)
//---------------------------------------------------------------------------
{
   Close();
}

//---------------------------------------------------------------------------
void __fastcall TForm1::Edit5Change(TObject *Sender)
//---------------------------------------------------------------------------
{
   ActiveMovie1->StoragePath = Edit5->Text;
}