mg 115 libavfilter/vf_colormatrix.c double det = ma * (me * mi - mf * mh) - mb * (md * mi - mf * mg) + mc * (md * mh - me * mg); mg 120 libavfilter/vf_colormatrix.c imd = det * (mf * mg - md * mi); mg 121 libavfilter/vf_colormatrix.c ime = det * (ma * mi - mc * mg); mg 123 libavfilter/vf_colormatrix.c img = det * (md * mh - me * mg); mg 124 libavfilter/vf_colormatrix.c imh = det * (mb * mg - ma * mh);