clamp_add_subtract_half  917 libavcodec/webp.c     p[0] = clamp_add_subtract_half(p_l[0], p_t[0], p_tl[0]);
clamp_add_subtract_half  918 libavcodec/webp.c     p[1] = clamp_add_subtract_half(p_l[1], p_t[1], p_tl[1]);
clamp_add_subtract_half  919 libavcodec/webp.c     p[2] = clamp_add_subtract_half(p_l[2], p_t[2], p_tl[2]);
clamp_add_subtract_half  920 libavcodec/webp.c     p[3] = clamp_add_subtract_half(p_l[3], p_t[3], p_tl[3]);