#include <mitkMovieGenerator.h>

Inheritance diagram for mitk::MovieGenerator:

Collaboration diagram for mitk::MovieGenerator:

Public Types
typedef MovieGenerator	Self
typedef itk::LightObject	Superclass
typedef itk::SmartPointer< Self >	Pointer
typedef itk::SmartPointer < const Self >	ConstPointer
Public Member Functions
virtual const char *	GetClassName () const
virtual void	SetStepper (Stepper *stepper)
	stepper used to control movie generation
virtual void	SetRenderer (BaseRenderer *renderer)
	renderer to record
virtual void	SetFileName (const char *fileName)
	filename under which movie is saved
virtual bool	WriteMovie ()
	uses given stepper and filename to create a movie from the active OpenGL context
virtual bool	WriteCurrentFrameToMovie ()
	alternative way, which does not use a stepper;
virtual void	ReleaseMovieWriter ()
	releases a movie writer after usage of WriteCurrentFrameToMovie()
virtual void	SetFrameRate (unsigned int rate)
unsigned int	GetFrameRate ()
Static Public Member Functions
static Pointer	New (void)
Protected Member Functions
	MovieGenerator ()
	default constructor
virtual bool	InitGenerator ()=0
	called directly before the first frame is added, determines movie size from renderer
virtual bool	AddFrame (void *data)=0
	used to add a frame
virtual bool	TerminateGenerator ()=0
	called after the last frame is added
Protected Attributes
char	m_fileName [1024]
	stores the movie filename
Stepper *	m_stepper
	stores the used stepper
BaseRenderer *	m_renderer
	stores the uses renderer
int	m_width
	InitGenerator() stores movie size in those variables.
int	m_height
bool	m_initialized
unsigned int	m_FrameRate

Detailed Description

Definition at line 31 of file mitkMovieGenerator.h.

Member Typedef Documentation

typedef itk::SmartPointer<const Self> mitk::MovieGenerator::ConstPointer

Reimplemented in mitk::MovieGeneratorWin32, and mitk::MovieGeneratorOpenCV.

Definition at line 35 of file mitkMovieGenerator.h.

typedef itk::SmartPointer<Self> mitk::MovieGenerator::Pointer

Reimplemented in mitk::MovieGeneratorWin32, and mitk::MovieGeneratorOpenCV.

Definition at line 35 of file mitkMovieGenerator.h.

typedef MovieGenerator mitk::MovieGenerator::Self

Reimplemented in mitk::MovieGeneratorWin32, and mitk::MovieGeneratorOpenCV.

Definition at line 35 of file mitkMovieGenerator.h.

typedef itk::LightObject mitk::MovieGenerator::Superclass

Reimplemented in mitk::MovieGeneratorWin32, and mitk::MovieGeneratorOpenCV.

Definition at line 35 of file mitkMovieGenerator.h.

Constructor & Destructor Documentation

mitk::MovieGenerator::MovieGenerator ( ) [protected]

default constructor

Definition at line 37 of file mitkMovieGenerator.cpp.

References m_fileName.

:m_stepper(NULL),
m_renderer(NULL),
m_width(0),
m_height(0),
m_initialized(false),
m_FrameRate(20)
{ 
  m_fileName[0]  =  0;
}

Member Function Documentation

virtual bool mitk::MovieGenerator::AddFrame ( void * data ) [protected, pure virtual]

used to add a frame

Implemented in mitk::MovieGeneratorWin32, and mitk::MovieGeneratorOpenCV.

virtual const char* mitk::MovieGenerator::GetClassName ( ) const [virtual]

Reimplemented in mitk::MovieGeneratorWin32, and mitk::MovieGeneratorOpenCV.

unsigned int mitk::MovieGenerator::GetFrameRate ( )

Definition at line 147 of file mitkMovieGenerator.cpp.

{
  return m_FrameRate;
}

virtual bool mitk::MovieGenerator::InitGenerator ( ) [protected, pure virtual]

called directly before the first frame is added, determines movie size from renderer

Implemented in mitk::MovieGeneratorWin32, and mitk::MovieGeneratorOpenCV.

mitk::MovieGenerator::Pointer mitk::MovieGenerator::New ( void ) [static]

Reimplemented in mitk::MovieGeneratorWin32, and mitk::MovieGeneratorOpenCV.

Definition at line 49 of file mitkMovieGenerator.cpp.

References mitk::MovieGeneratorWin32::New().

Referenced by QmitkSimpleExampleView::generateMovie(), and QmitkMovieMaker::QmitkMovieMaker().

{
  Pointer smartPtr;
  MovieGenerator *rawPtr = ::itk::ObjectFactory<MovieGenerator>::Create();
  if(rawPtr == NULL) {


#ifdef WIN32
#ifndef __GNUC__
//#if ! (_MSC_VER >= 1400)
    mitk::MovieGenerator::Pointer wp = static_cast<mitk::MovieGenerator*>(mitk::MovieGeneratorWin32::New());
    return wp;
//#endif
#endif
#endif
  }
  smartPtr = rawPtr;
  if(rawPtr != NULL) rawPtr->UnRegister();
  return smartPtr;
}

void mitk::MovieGenerator::ReleaseMovieWriter ( ) [virtual]

releases a movie writer after usage of WriteCurrentFrameToMovie()

Definition at line 136 of file mitkMovieGenerator.cpp.

{
  TerminateGenerator();
  m_initialized = false;
}

virtual void mitk::MovieGenerator::SetFileName ( const char * fileName ) [inline, virtual]

filename under which movie is saved

Reimplemented in mitk::MovieGeneratorWin32, and mitk::MovieGeneratorOpenCV.

Definition at line 47 of file mitkMovieGenerator.h.

{ strcpy( m_fileName, fileName  ); }

void mitk::MovieGenerator::SetFrameRate ( unsigned int rate ) [virtual]

Definition at line 142 of file mitkMovieGenerator.cpp.

{
  m_FrameRate = rate;
}

virtual void mitk::MovieGenerator::SetRenderer ( BaseRenderer * renderer ) [inline, virtual]

renderer to record

Definition at line 44 of file mitkMovieGenerator.h.

{ m_renderer  =  renderer;  }

virtual void mitk::MovieGenerator::SetStepper ( Stepper * stepper ) [inline, virtual]

stepper used to control movie generation

Definition at line 41 of file mitkMovieGenerator.h.

{ m_stepper = stepper; }

virtual bool mitk::MovieGenerator::TerminateGenerator ( ) [protected, pure virtual]

called after the last frame is added

Implemented in mitk::MovieGeneratorWin32, and mitk::MovieGeneratorOpenCV.

bool mitk::MovieGenerator::WriteCurrentFrameToMovie ( ) [virtual]

alternative way, which does not use a stepper;

Definition at line 109 of file mitkMovieGenerator.cpp.

References mitk::RenderingManager::ForceImmediateUpdate(), mitk::RenderingManager::GetInstance(), GL_BGR, GL_UNSIGNED_BYTE, and glReadPixels().

{  
  if (m_renderer) 
  {
    m_renderer->GetRenderWindow()->MakeCurrent();
    
    if(!m_initialized)
    {
      RenderingManager::GetInstance()->ForceImmediateUpdate(m_renderer->GetRenderWindow());
      m_initialized = InitGenerator();
    }
    if (!m_initialized) 
    {
      TerminateGenerator();
      return false;
    }
    int imgSize = 3 * m_width * m_height;
    GLbyte *data = new GLbyte[imgSize];
    
    RenderingManager::GetInstance()->ForceImmediateUpdate(m_renderer->GetRenderWindow());
    glReadPixels( 5, 5, m_width, m_height, GL_BGR, GL_UNSIGNED_BYTE, (void*)data );
    AddFrame( data );    
    delete[] data;  
  }
  return true;
}

bool mitk::MovieGenerator::WriteMovie ( ) [virtual]

uses given stepper and filename to create a movie from the active OpenGL context

Definition at line 71 of file mitkMovieGenerator.cpp.

References mitk::RenderingManager::ForceImmediateUpdate(), mitk::RenderingManager::GetInstance(), GL_BGR, GL_UNSIGNED_BYTE, and glReadPixels().

{  
  bool ok = false;
  if (m_stepper)
  {
    if (m_renderer) m_renderer->GetRenderWindow()->MakeCurrent();
    //m_stepper->First();
    RenderingManager::GetInstance()->ForceImmediateUpdate(m_renderer->GetRenderWindow());

    ok = InitGenerator();
    if (!ok) 
    {
      TerminateGenerator();
      return false;
    }
    int imgSize = 3 * m_width * m_height;
    printf( "Video size = %i x %i\n", m_width, m_height );
    GLbyte *data = new GLbyte[imgSize];

    //duplicate steps if pingPong option is switched to on.
    unsigned int numOfSteps = m_stepper->GetSteps();
    if( m_stepper->GetPingPong() )
      numOfSteps*=2;

    for (unsigned int i=0; i<numOfSteps; i++)
    {
      if (m_renderer) m_renderer->GetRenderWindow()->MakeCurrent();
      RenderingManager::GetInstance()->ForceImmediateUpdate(m_renderer->GetRenderWindow());
      glReadPixels( 5, 5, m_width, m_height, GL_BGR, GL_UNSIGNED_BYTE, (void*)data );
      AddFrame( data );
      m_stepper->Next();
    }
    ok = TerminateGenerator();
    delete[] data;
  }
  return ok;
}