SWR_DITHER_NB      42 libswresample/dither.c                 av_assert0(s->dither.method < SWR_DITHER_NB);
SWR_DITHER_NB      56 libswresample/dither.c                 av_assert0(s->dither.method < SWR_DITHER_NB);
SWR_DITHER_NB      73 libswresample/options.c {"dither_method"        , "set dither method"           , OFFSET(user_dither_method),AV_OPT_TYPE_INT, {.i64=0                     }, 0      , SWR_DITHER_NB-1, PARAM, "dither_method"},