mi 115 libavfilter/vf_colormatrix.c double det = ma * (me * mi - mf * mh) - mb * (md * mi - mf * mg) + mc * (md * mh - me * mg); mi 117 libavfilter/vf_colormatrix.c ima = det * (me * mi - mf * mh); mi 118 libavfilter/vf_colormatrix.c imb = det * (mc * mh - mb * mi); mi 120 libavfilter/vf_colormatrix.c imd = det * (mf * mg - md * mi); mi 121 libavfilter/vf_colormatrix.c ime = det * (ma * mi - mc * mg);