BLEND_AND         110 libavfilter/vf_blend.c     { "and",        "", 0, AV_OPT_TYPE_CONST, {.i64=BLEND_AND},        0, 0, FLAGS, "mode" },\
BLEND_AND         319 libavfilter/vf_blend.c         case BLEND_AND:        param->blend = blend_and;        break;