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# Hybrid/vtkVideoSource.h

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    00001 /*=========================================================================
    00002
    00003   Program:   Visualization Toolkit
    00004   Module:    $RCSfile: vtkVideoSource.h,v $
    00005   Language:  C++
    00006
    00007   Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen
    00008   All rights reserved.
    00009   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
    00010
    00011      This software is distributed WITHOUT ANY WARRANTY; without even
    00012      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
    00013      PURPOSE.  See the above copyright notice for more information.
    00014
    00015 =========================================================================*/
    00045 #ifndef __vtkVideoSource_h
    00046 #define __vtkVideoSource_h
    00047
    00048 #include "vtkImageSource.h"
    00049
    00050 class vtkTimerLog;
    00051 class vtkCriticalSection;
    00052 class vtkMultiThreader;
    00053 class vtkScalarsToColors;
    00054
    00055 class VTK_HYBRID_EXPORT vtkVideoSource : public vtkImageSource
    00056 {
    00057 public:
    00058   static vtkVideoSource *New();
    00059   vtkTypeRevisionMacro(vtkVideoSource,vtkImageSource);
    00060   void PrintSelf(ostream& os, vtkIndent indent);
    00061
    00064   virtual void Record();
    00065
    00068   virtual void Play();
    00069
    00071   virtual void Stop();
    00072
    00077   virtual void Rewind();
    00078
    00081   virtual void FastForward();
    00082
    00085   virtual void Seek(int n);
    00086
    00088   virtual void Grab();
    00089
    00091
    00093   vtkGetMacro(Recording,int);
    00095
    00097
    00099   vtkGetMacro(Playing,int);
    00101
    00103
    00108   virtual void SetFrameSize(int x, int y, int z);
    00109   virtual void SetFrameSize(int dim[3]) {
    00110     this->SetFrameSize(dim[0], dim[1], dim[2]); };
    00111   vtkGetVector3Macro(FrameSize,int);
    00113
    00115
    00116   virtual void SetFrameRate(float rate);
    00117   vtkGetMacro(FrameRate,float);
    00119
    00121
    00123   virtual void SetOutputFormat(int format);
    00124   void SetOutputFormatToLuminance() { this->SetOutputFormat(VTK_LUMINANCE); };
    00125   void SetOutputFormatToRGB() { this->SetOutputFormat(VTK_RGB); };
    00126   void SetOutputFormatToRGBA() { this->SetOutputFormat(VTK_RGBA); };
    00127   vtkGetMacro(OutputFormat,int);
    00129
    00131
    00133   virtual void SetFrameBufferSize(int FrameBufferSize);
    00134   vtkGetMacro(FrameBufferSize,int);
    00136
    00138
    00141   vtkSetMacro(NumberOfOutputFrames,int);
    00142   vtkGetMacro(NumberOfOutputFrames,int);
    00144
    00146
    00148   vtkBooleanMacro(AutoAdvance,int);
    00149   vtkSetMacro(AutoAdvance,int)
    00150   vtkGetMacro(AutoAdvance,int);
    00152
    00154
    00158   virtual void SetClipRegion(int r[6]) {
    00159     this->SetClipRegion(r[0],r[1],r[2],r[3],r[4],r[5]); };
    00160   virtual void SetClipRegion(int x0, int x1, int y0, int y1, int z0, int z1);
    00161   vtkGetVector6Macro(ClipRegion,int);
    00163
    00165
    00172   vtkSetVector6Macro(OutputWholeExtent,int);
    00173   vtkGetVector6Macro(OutputWholeExtent,int);
    00175
    00177
    00178   vtkSetVector3Macro(DataSpacing,float);
    00179   vtkGetVector3Macro(DataSpacing,float);
    00181
    00183
    00185   vtkSetVector3Macro(DataOrigin,float);
    00186   vtkGetVector3Macro(DataOrigin,float);
    00188
    00190
    00193   vtkSetMacro(Opacity,float);
    00194   vtkGetMacro(Opacity,float);
    00196
    00198
    00200   vtkGetMacro(FrameCount, int);
    00201   vtkSetMacro(FrameCount, int);
    00203
    00205
    00207   vtkGetMacro(FrameIndex, int);
    00209
    00214   virtual double GetFrameTimeStamp(int frame);
    00215
    00219   double GetFrameTimeStamp() { return this->FrameTimeStamp; };
    00220
    00222
    00224   virtual void Initialize();
    00225   virtual int GetInitialized() { return this->Initialized; };
    00227
    00230   virtual void ReleaseSystemResources();
    00231
    00235   virtual void InternalGrab();
    00236
    00238
    00240   void SetStartTimeStamp(double t) { this->StartTimeStamp = t; };
    00241   double GetStartTimeStamp() { return this->StartTimeStamp; };
    00243
    00244 protected:
    00245   vtkVideoSource();
    00246   ~vtkVideoSource();
    00247   void ExecuteInformation();
    00248
    00249   int Initialized;
    00250
    00251   int FrameSize[3];
    00252   int ClipRegion[6];
    00253   int OutputWholeExtent[6];
    00254   float DataSpacing[3];
    00255   float DataOrigin[3];
    00256   int OutputFormat;
    00257   // set according to the OutputFormat
    00258   int NumberOfScalarComponents;
    00259   // The FrameOutputExtent is the WholeExtent for a single output frame.
    00260   // It is initialized in ExecuteInformation.
    00261   int FrameOutputExtent[6];
    00262
    00263   // save this information from the output so that we can see if the
    00264   // output scalars have changed
    00265   int LastNumberOfScalarComponents;
    00266   int LastOutputExtent[6];
    00267
    00268   int Recording;
    00269   int Playing;
    00270   float FrameRate;
    00271   int FrameCount;
    00272   int FrameIndex;
    00273   double StartTimeStamp;
    00274   double FrameTimeStamp;
    00275
    00276   int AutoAdvance;
    00277   int NumberOfOutputFrames;
    00278
    00279   float Opacity;
    00280
    00281   // true if Execute() must apply a vertical flip to each frame
    00282   int FlipFrames;
    00283
    00284   // set if output needs to be cleared to be cleared before being written
    00285   int OutputNeedsInitialization;
    00286
    00287   // An example of asynchrony
    00288   vtkMultiThreader *PlayerThreader;
    00289   int PlayerThreadId;
    00290
    00291   // A mutex for the frame buffer: must be applied when any of the
    00292   // below data is modified.
    00293   vtkCriticalSection *FrameBufferMutex;
    00294
    00295   // set according to the needs of the hardware:
    00296   // number of bits per framebuffer pixel
    00297   int FrameBufferBitsPerPixel;
    00298   // byte alignment of each row in the framebuffer
    00299   int FrameBufferRowAlignment;
    00300   // FrameBufferExtent is the extent of frame after it has been clipped
    00301   // with ClipRegion.  It is initialized in CheckBuffer().
    00302   int FrameBufferExtent[6];
    00303
    00304   int FrameBufferSize;
    00305   int FrameBufferIndex;
    00306   void **FrameBuffer;
    00307   double *FrameBufferTimeStamps;
    00308
    00310
    00311   virtual void UpdateFrameBuffer();
    00312   virtual void AdvanceFrameBuffer(int n);
    00313   virtual void ExecuteData(vtkDataObject *data);
    00314   // if some component conversion is required, it is done here:
    00315   virtual void UnpackRasterLine(char *outPtr, char *rowPtr,
    00316                                 int start, int count);
    00318
    00319 private:
    00320   vtkVideoSource(const vtkVideoSource&);  // Not implemented.
    00321   void operator=(const vtkVideoSource&);  // Not implemented.
    00322 };
    00323
    00324 #endif
    00325
    00326
    00327
    00328
    00329