TAN2              188 libavcodec/xvididct.c     mm3 = MULT(TAN2, mm2, 16) + mm1;
TAN2              189 libavcodec/xvididct.c     mm2 = MULT(TAN2, mm1, 16) - mm2;
TAN2              235 libavcodec/xvididct.c     mm2 = MULT(TAN2, mm3, 16);
TAN2              272 libavcodec/xvididct.c     mm2 = MULT(TAN2, mm3, 16);