norm20            162 libavcodec/synth_filter.c         out[i     ] = clip23(norm20(a));
norm20            163 libavcodec/synth_filter.c         out[i + 32] = clip23(norm20(b));
norm20            164 libavcodec/synth_filter.c         synth_buf2[i     ] = norm20(c);
norm20            165 libavcodec/synth_filter.c         synth_buf2[i + 32] = norm20(d);