static int
rtpp_stream_check_latch_override(struct rtpp_stream *self,
struct rtp_packet *packet)
{
const char *actor;
struct rtpp_stream_priv *pvt;
char saddr[MAX_AP_STRBUF];
pvt = PUB2PVT(self);
if (self->session_type == SESS_RTCP || self->latch_info.ssrc == 0)
return (0);
if (rtp_packet_parse(packet) != RTP_PARSER_OK)
return (0);
if (packet->parsed->ssrc != self->latch_info.ssrc)
return (0);
if (packet->parsed->seq < self->latch_info.seq && self->latch_info.seq - packet->parsed->seq < 536)
return (0);
actor = rtpp_stream_get_actor(self);
addrport2char_r(sstosa(&packet->raddr), saddr, sizeof(saddr));
RTPP_LOG(pvt->pub.log, RTPP_LOG_INFO,
"%s's address re-latched: %s (%s), SSRC=" SSRC_FMT ", Seq=%u->%u", actor,
saddr, "RTP", self->latch_info.ssrc, self->latch_info.seq,
packet->parsed->seq);
self->latch_info.seq = packet->parsed->seq;
return (1);
}
int
rtpp_analyzer_update(struct rtpp_session *sp, struct rtpp_analyzer *rap,
struct rtp_packet *pkt)
{
if (rtp_packet_parse(pkt) != RTP_PARSER_OK) {
rap->pecount++;
return (-1);
}
if (update_rtpp_stats(sp->log, &(rap->rstat), &(pkt->data.header), pkt->parsed, pkt->rtime) != 0) {
rap->aecount++;
return (-1);
}
return (0);
}
static int
rtpp_stream_latch(struct rtpp_stream *self, double dtime,
struct rtp_packet *packet)
{
const char *actor, *ptype, *ssrc, *seq, *relatch;
char ssrc_buf[11], seq_buf[6];
struct rtpp_stream_priv *pvt;
char saddr[MAX_AP_STRBUF];
pvt = PUB2PVT(self);
if (pvt->last_update != 0 && \
dtime - pvt->last_update < UPDATE_WINDOW) {
return (0);
}
actor = rtpp_stream_get_actor(self);
ptype = rtpp_stream_get_proto(self);
if (self->session_type == SESS_RTP) {
if (rtp_packet_parse(packet) == RTP_PARSER_OK) {
self->latch_info.ssrc = packet->parsed->ssrc;
self->latch_info.seq = packet->parsed->seq;
snprintf(ssrc_buf, sizeof(ssrc_buf), SSRC_FMT, packet->parsed->ssrc);
snprintf(seq_buf, sizeof(seq_buf), "%u", packet->parsed->seq);
ssrc = ssrc_buf;
seq = seq_buf;
} else {
self->latch_info.ssrc = 0;
ssrc = seq = "INVALID";
}
} else {
self->latch_info.ssrc = 0;
ssrc = seq = "UNKNOWN";
}
addrport2char_r(sstosa(&packet->raddr), saddr, sizeof(saddr));
if (self->latch_info.latched == 0) {
relatch = "";
} else {
relatch = "re-";
}
RTPP_LOG(pvt->pub.log, RTPP_LOG_INFO,
"%s's address %slatched in: %s (%s), SSRC=%s, Seq=%s", actor, relatch,
saddr, ptype, ssrc, seq);
self->latch_info.latched = 1;
return (1);
}
