SWR_DITHER_NS_IMPROVED_E_WEIGHTED  209 libswresample/noise_shaping_data.c   {46000, fir,  9, 321, iew44,          SWR_DITHER_NS_IMPROVED_E_WEIGHTED},
SWR_DITHER_NS_IMPROVED_E_WEIGHTED   83 libswresample/options.c {"improved_e_weighted"  , "select improved-e-weighted noise shaping dither" , 0  , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_NS_IMPROVED_E_WEIGHTED }, INT_MIN, INT_MAX, PARAM, "dither_method"},