dilate_uninit 338 libavfilter/vf_libopencv.c { "dilate", sizeof(DilateContext), dilate_init, dilate_uninit, dilate_end_frame_filter }, dilate_uninit 339 libavfilter/vf_libopencv.c { "erode", sizeof(DilateContext), dilate_init, dilate_uninit, erode_end_frame_filter },