ff_blend_mask 131 libavfilter/drawutils.h void ff_blend_mask(FFDrawContext *draw, FFDrawColor *color, ff_blend_mask 1083 libavfilter/vf_drawtext.c ff_blend_mask(&s->dc, color, ff_blend_mask 165 libavfilter/vf_subtitles.c ff_blend_mask(&ass->draw, &color,