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  #ifndef QVIDEOFRAMECONVERSIONHELPER_P_H
  #define QVIDEOFRAMECONVERSIONHELPER_P_H
  
  //
  //  W A R N I N G
  //  -------------
  //
  // This file is not part of the Qt API.  It exists purely as an
  // implementation detail.  This header file may change from version to
  // version without notice, or even be removed.
  //
  // We mean it.
  //
  
  #include <qvideoframe.h>
  #include <private/qsimd_p.h>
  
  typedef void (QT_FASTCALL *VideoFrameConvertFunc)(const QVideoFrame &frame, uchar *output);
  
  inline quint32 qConvertBGRA32ToARGB32(quint32 bgra)
  {
      return (((bgra & 0xFF000000) >> 24)
              | ((bgra & 0x00FF0000) >> 8)
              | ((bgra & 0x0000FF00) << 8)
              | ((bgra & 0x000000FF) << 24));
  }
  
  inline quint32 qConvertBGR24ToARGB32(const uchar *bgr)
  {
      return 0xFF000000 | bgr[0] | bgr[1] << 8 | bgr[2] << 16;
  }
  
  inline quint32 qConvertBGR565ToARGB32(quint16 bgr)
  {
      return 0xff000000
              | ((((bgr) >> 8) & 0xf8) | (((bgr) >> 13) & 0x7))
              | ((((bgr) << 5) & 0xfc00) | (((bgr) >> 1) & 0x300))
              | ((((bgr) << 19) & 0xf80000) | (((bgr) << 14) & 0x70000));
  }
  
  inline quint32 qConvertBGR555ToARGB32(quint16 bgr)
  {
      return 0xff000000
              | ((((bgr) >> 7) & 0xf8) | (((bgr) >> 12) & 0x7))
              | ((((bgr) << 6) & 0xf800) | (((bgr) << 1) & 0x700))
              | ((((bgr) << 19) & 0xf80000) | (((bgr) << 11) & 0x70000));
  }
  
  #define FETCH_INFO_PACKED(frame) \
      const uchar *src = frame.bits(); \
      int stride = frame.bytesPerLine(); \
      int width = frame.width(); \
      int height = frame.height();
  
  #define FETCH_INFO_BIPLANAR(frame) \
      const uchar *plane1 = frame.bits(0); \
      const uchar *plane2 = frame.bits(1); \
      int plane1Stride = frame.bytesPerLine(0); \
      int plane2Stride = frame.bytesPerLine(1); \
      int width = frame.width(); \
      int height = frame.height();
  
  #define FETCH_INFO_TRIPLANAR(frame) \
      const uchar *plane1 = frame.bits(0); \
      const uchar *plane2 = frame.bits(1); \
      const uchar *plane3 = frame.bits(2); \
      int plane1Stride = frame.bytesPerLine(0); \
      int plane2Stride = frame.bytesPerLine(1); \
      int plane3Stride = frame.bytesPerLine(2); \
      int width = frame.width(); \
      int height = frame.height(); \
  
  #define MERGE_LOOPS(width, height, stride, bpp) \
      if (stride == width * bpp) { \
          width *= height; \
          height = 1; \
          stride = 0; \
      }
  
  #define ALIGN(boundary, ptr, x, length) \
      for (; ((reinterpret_cast<qintptr>(ptr) & (boundary - 1)) != 0) && x < length; ++x)
  
  #endif // QVIDEOFRAMECONVERSIONHELPER_P_H
  
  