FT_ERRMSG         370 libavfilter/vf_drawtext.c                s->fontfile, FT_ERRMSG(err));
FT_ERRMSG         635 libavfilter/vf_drawtext.c                "Could not load FreeType: %s\n", FT_ERRMSG(err));
FT_ERRMSG         646 libavfilter/vf_drawtext.c                s->fontsize, FT_ERRMSG(err));