diff options
Diffstat (limited to 'res/res_rtp_asterisk.c')
| -rw-r--r-- | res/res_rtp_asterisk.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/res/res_rtp_asterisk.c b/res/res_rtp_asterisk.c index 627f800a4..95fe6d3ea 100644 --- a/res/res_rtp_asterisk.c +++ b/res/res_rtp_asterisk.c @@ -4286,6 +4286,7 @@ static int bridge_p2p_rtp_write(struct ast_rtp_instance *instance, unsigned int int reconstruct = ntohl(rtpheader[0]); struct ast_sockaddr remote_address = { {0,} }; int ice; + unsigned int timestamp = ntohl(rtpheader[1]); /* Get fields from packet */ payload = (reconstruct & 0x7f0000) >> 16; @@ -4314,6 +4315,22 @@ static int bridge_p2p_rtp_write(struct ast_rtp_instance *instance, unsigned int return -1; } + /* If bridged peer is in dtmf, feed all packets to core until it finishes to avoid infinite dtmf */ + if (bridged->sending_digit) { + ast_debug(1, "Feeding packets to core until DTMF finishes\n"); + return -1; + } + + /* + * Even if we are no longer in dtmf, we could still be receiving + * re-transmissions of the last dtmf end still. Feed those to the + * core so they can be filtered accordingly. + */ + if (rtp->last_end_timestamp == timestamp) { + ast_debug(1, "Feeding packet with duplicate timestamp to core\n"); + return -1; + } + /* If the marker bit has been explicitly set turn it on */ if (ast_test_flag(rtp, FLAG_NEED_MARKER_BIT)) { mark = 1; |