SWS_ALPHA_BLEND_CHECKERBOARD   39 libswscale/alphablend.c         if (c->alphablend == SWS_ALPHA_BLEND_CHECKERBOARD) {
SWS_ALPHA_BLEND_CHECKERBOARD   82 libswscale/options.c     { "checkerboard",    "blend onto a checkerboard",     0,                 AV_OPT_TYPE_CONST,  { .i64  = SWS_ALPHA_BLEND_CHECKERBOARD},INT_MIN, INT_MAX,     VE, "alphablend" },