RTCP_BYE          198 libavformat/rtpdec.c         case RTCP_BYE:
RTCP_BYE          199 libavformat/rtpdec.c             return -RTCP_BYE;
RTCP_BYE          322 libavformat/rtpenc.c         avio_w8(s1->pb, RTCP_BYE);
RTCP_BYE         2268 libavformat/rtsp.c             if (ret == -RTCP_BYE) {