load_glyph        662 libavfilter/vf_drawtext.c     load_glyph(ctx, NULL, 0);
load_glyph        665 libavfilter/vf_drawtext.c     if ((err = load_glyph(ctx, &glyph, ' ')) < 0) {
load_glyph       1177 libavfilter/vf_drawtext.c             load_glyph(ctx, &glyph, code);