GET_PTS_DIFF     1729 libavcodec/rv34.c             int refdist = GET_PTS_DIFF(r->next_pts, r->last_pts);
GET_PTS_DIFF     1730 libavcodec/rv34.c             int dist0   = GET_PTS_DIFF(r->cur_pts,  r->last_pts);
GET_PTS_DIFF     1731 libavcodec/rv34.c             int dist1   = GET_PTS_DIFF(r->next_pts, r->cur_pts);