diff options
Diffstat (limited to 'res')
| -rw-r--r-- | res/res_rtp_multicast.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/res/res_rtp_multicast.c b/res/res_rtp_multicast.c index 18256e90e..fc22ba388 100644 --- a/res/res_rtp_multicast.c +++ b/res/res_rtp_multicast.c @@ -89,7 +89,7 @@ struct multicast_rtp { /*! Synchronization source value, used when creating/sending the RTP packet */ unsigned int ssrc; /*! Sequence number, used when creating/sending the RTP packet */ - unsigned int seqno; + uint16_t seqno; }; /* Forward Declarations */ @@ -228,10 +228,13 @@ static int multicast_rtp_write(struct ast_rtp_instance *instance, struct ast_fra /* Construct an RTP header for our packet */ rtpheader = (unsigned char *)(f->data.ptr - hdrlen); - put_unaligned_uint32(rtpheader, htonl((2 << 30) | (codec << 16) | (multicast->seqno++) | (0 << 23))); + put_unaligned_uint32(rtpheader, htonl((2 << 30) | (codec << 16) | (multicast->seqno))); put_unaligned_uint32(rtpheader + 4, htonl(f->ts * 8)); put_unaligned_uint32(rtpheader + 8, htonl(multicast->ssrc)); + /* Increment sequence number and wrap to 0 if it overflows 16 bits. */ + multicast->seqno = 0xFFFF & (multicast->seqno + 1); + /* Finally send it out to the eager phones listening for us */ ast_rtp_instance_get_remote_address(instance, &remote_address); res = ast_sendto(multicast->socket, (void *) rtpheader, f->datalen + hdrlen, 0, &remote_address); |