ff_nut_add_sp     137 libavformat/nut.h int ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts);
ff_nut_add_sp     646 libavformat/nutdec.c     if ((ret = ff_nut_add_sp(nut, nut->last_syncpoint_pos, *back_ptr, *ts)) < 0)
ff_nut_add_sp    1041 libavformat/nutenc.c         if ((ret = ff_nut_add_sp(nut, nut->last_syncpoint_pos, 0 /*unused*/, pkt->dts)) < 0)