don't send them when acting as a RTSP muxer.
Patch by Martin Storsjö <$firstname $firstname st>.
Originally committed as revision 21913 to svn://svn.ffmpeg.org/ffmpeg/trunk
* potential NAT router by sending dummy packets.
* RTP/RTCP dummy packets are used for RDT, too.
*/
- if (!(rt->server_type == RTSP_SERVER_WMS && i > 1))
+ if (!(rt->server_type == RTSP_SERVER_WMS && i > 1) && s->iformat)
rtp_send_punch_packets(rtsp_st->rtp_handle);
break;
}