symmetric_extension  254 libavfilter/vf_vaguedenoiser.c     symmetric_extension(input, size, 1, 1);
symmetric_extension  293 libavfilter/vf_vaguedenoiser.c     symmetric_extension(temp, low_size, left_ext, right_ext);
symmetric_extension  317 libavfilter/vf_vaguedenoiser.c     symmetric_extension(temp, high_size, left_ext, right_ext);