1 files changed, 5 insertions, 0 deletions
diff --git a/libmpdemux/demux_nemesi.c b/libmpdemux/demux_nemesi.c
index d71f5e1d6a..0b19d76169 100644
--- a/libmpdemux/demux_nemesi.c
+++ b/libmpdemux/demux_nemesi.c
@@ -334,6 +334,11 @@ int demux_rtp_fill_buffer(demuxer_t* demuxer, demux_stream_t* ds)
         stream_add_packet(ndsd, stype, ds, &fr);
     else {
         stype = INVERT_STYPE(stype);
+
+        //Must check if we actually have a stream of the other type
+        if (!ndsd->session[stype])
+            return 1;
+
         ds = STYPE_TO_DS(demuxer, stype);
         ssrc = wait_for_packets(ndsd, stype);