MAX_MATRIX_SIZE    80 libavfilter/vf_unsharp.c     const int sr_offset = jobnr * (MAX_MATRIX_SIZE - 1);
MAX_MATRIX_SIZE   220 libavfilter/vf_unsharp.c     fp->sr = av_malloc_array((MAX_MATRIX_SIZE - 1) * s->nb_threads, sizeof(uint32_t));