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/*=========================================================================
Program: Visualization Toolkit
Module: vtkWin32VideoSource.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkWin32VideoSource - Video-for-Windows video digitizer
// .SECTION Description
// vtkWin32VideoSource grabs frames or streaming video from a
// Video for Windows compatible device on the Win32 platform.
// .SECTION Caveats
// With some capture cards, if this class is leaked and ReleaseSystemResources
// is not called, you may have to reboot before you can capture again.
// vtkVideoSource used to keep a global list and delete the video sources
// if your program leaked, due to exit crashes that was removed.
//
// .SECTION See Also
// vtkVideoSource vtkMILVideoSource
#ifndef __vtkWin32VideoSource_h
#define __vtkWin32VideoSource_h
#include "vtkVideoSource.h"
class vtkWin32VideoSourceInternal;
class VTK_HYBRID_EXPORT vtkWin32VideoSource : public vtkVideoSource
{
public:
static vtkWin32VideoSource *New();
vtkTypeMacro(vtkWin32VideoSource,vtkVideoSource);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Standard VCR functionality: Record incoming video.
void Record();
// Description:
// Standard VCR functionality: Play recorded video.
void Play();
// Description:
// Standard VCR functionality: Stop recording or playing.
void Stop();
// Description:
// Grab a single video frame.
void Grab();
// Description:
// Request a particular frame size (set the third value to 1).
void SetFrameSize(int x, int y, int z);
virtual void SetFrameSize(int dim[3]) {
this->SetFrameSize(dim[0], dim[1], dim[2]); };
// Description:
// Request a particular frame rate (default 30 frames per second).
void SetFrameRate(float rate);
// Description:
// Request a particular output format (default: VTK_RGB).
void SetOutputFormat(int format);
// Description:
// Turn on/off the preview (overlay) window.
void SetPreview(int p);
vtkBooleanMacro(Preview,int);
vtkGetMacro(Preview,int);
// Description:
// Bring up a modal dialog box for video format selection.
void VideoFormatDialog();
// Description:
// Bring up a modal dialog box for video input selection.
void VideoSourceDialog();
// Description:
// Initialize the driver (this is called automatically when the
// first grab is done).
void Initialize();
// Description:
// Free the driver (this is called automatically inside the
// destructor).
void ReleaseSystemResources();
// Description:
// For internal use only
void LocalInternalGrab(void*);
void OnParentWndDestroy();
protected:
vtkWin32VideoSource();
~vtkWin32VideoSource();
char WndClassName[16];
int BitMapSize;
int Preview;
vtkWin32VideoSourceInternal *Internal;
void CheckBuffer();
void UnpackRasterLine(char *outptr, char *inptr,
int start, int count);
void DoVFWFormatSetup();
void DoVFWFormatCheck();
private:
vtkWin32VideoSource(const vtkWin32VideoSource&); // Not implemented.
void operator=(const vtkWin32VideoSource&); // Not implemented.
};
#endif
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