DITHERING_HECKBERT  114 libavfilter/vf_paletteuse.c         { "heckbert",        "dithering as defined by Paul Heckbert in 1982 (simple error diffusion)", 0, AV_OPT_TYPE_CONST, {.i64=DITHERING_HECKBERT},        INT_MIN, INT_MAX, FLAGS, "dithering_mode" },
DITHERING_HECKBERT  427 libavfilter/vf_paletteuse.c             } else if (dither == DITHERING_HECKBERT) {
DITHERING_HECKBERT 1046 libavfilter/vf_paletteuse.c     DEFINE_SET_FRAME(color_search_macro, color_search##_##heckbert,        DITHERING_HECKBERT)          \