VideoToBMP.c

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#include "FBLib_av.h"
#include "libFireBird.h"
 
void VideoToBMP(TYPE_VideoFrame *VideoFrame, int BMPwidth, int BMPheight, byte *BMPPixelBuffer, int DstX, int DstY, int DstWidth, int DstHeight)
{
  TRACEENTER();
 
  dword                *VideoData;
  dword                *SrcPixel;
  byte                 *DstPixel;
  int                   SX, SY;
  register int          x, y;
 
  VideoData = (dword*)VideoFrame->data;
  for(y = DstY; y < (DstY + DstHeight); y++)
  {
    SY =  (y - DstY) * VideoFrame->height / DstHeight;
    for(x = DstX; x < (DstX + DstWidth); x++)
    {
      SX =  (x - DstX) * VideoFrame->width / DstWidth;
      SrcPixel = (dword*)&VideoData[SX + SY * VideoFrame->width];
 
      DstPixel = &BMPPixelBuffer[((BMPheight - y - 1) * BMPwidth + x) * 3];
      DstPixel[0] = B8888(*SrcPixel);
      DstPixel[1] = G8888(*SrcPixel);
      DstPixel[2] = R8888(*SrcPixel);
    }
  }
 
  TRACEEXIT();
}