DUP_DATA          213 libavcodec/avpacket.c         DUP_DATA(pkt->data, src->data, pkt->size, 1, ALLOC_BUF);
DUP_DATA          233 libavcodec/avpacket.c         DUP_DATA(pkt->side_data, src->side_data,
DUP_DATA          240 libavcodec/avpacket.c             DUP_DATA(pkt->side_data[i].data, src->side_data[i].data,