INDEX_DY          331 libavfilter/vf_colorconstancy.c         const double *dy = td->data[INDEX_DY][plane];
INDEX_DY          405 libavfilter/vf_colorconstancy.c         get_deriv(ctx, td, 1, DIR_Y, INDEX_TEMP, INDEX_DY,   width , nb_threads);
INDEX_DY          413 libavfilter/vf_colorconstancy.c         get_deriv(ctx, td, 2, DIR_Y, INDEX_TEMP, INDEX_DY,   width , nb_threads);