PVS-Studio warning V624 for ffdshow

void TrenderedTextSubtitleWord::Transform(CPoint org)
{
  ....
  double caz = cos((3.1415 / 180) * mprops.angleZ);
  double saz = sin((3.1415 / 180) * mprops.angleZ);
  double cax = cos((3.1415 / 180) * mprops.angleX);
  double sax = sin((3.1415 / 180) * mprops.angleX);
  double cay = cos((3.1415 / 180) * mprops.angleY);
  double say = sin((3.1415 / 180) * mprops.angleY);
  ....
}

This suspicious code was found in ffdshow project by PVS-Studio static code analyzer.
Warning message is:
V624 The constant 3.1415 is being utilized. The resulting value could be inaccurate. Consider using the M_PI constant from <math.h>. trenderedtextsubtitleword.cpp 290

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