CLIP_SYMM         456 libavcodec/rv40dsp.c         diff = CLIP_SYMM((t + 4) >> 3, lim_p0q0);
CLIP_SYMM         462 libavcodec/rv40dsp.c             src[-2*step] = cm[src[-2*step] - CLIP_SYMM(t, lim_p1)];
CLIP_SYMM         467 libavcodec/rv40dsp.c             src[ 1*step] = cm[src[ 1*step] - CLIP_SYMM(t, lim_q1)];