area1              93 libavcodec/intrax8dsp.c             dst[area1 + i] = c;
area1             127 libavcodec/intrax8dsp.c             memset(dst + area1, avg, 8 + 8 + 1); // areas 1, 2, 3 are averaged
area1             306 libavcodec/intrax8dsp.c             dst[x] = (src[area1 + 7 - y] + src[area2 + 7 - y] + 1) >> 1;