int AmRtpStream::receive( unsigned char* buffer, unsigned int size,
unsigned int& ts, int &out_payload)
{
AmRtpPacket* rp = NULL;
int err = nextPacket(rp);
if(err <= 0)
return err;
if (!rp)
return 0;
handleSymmetricRtp(rp);
/* do we have a new talk spurt? */
begin_talk = ((last_payload == 13) || rp->marker);
last_payload = rp->payload;
if(!rp->getDataSize()) {
mem.freePacket(rp);
return RTP_EMPTY;
}
if (rp->payload == getLocalTelephoneEventPT())
{
dtmf_payload_t* dpl = (dtmf_payload_t*)rp->getData();
DBG("DTMF: event=%i; e=%i; r=%i; volume=%i; duration=%i; ts=%u\n",
dpl->event,dpl->e,dpl->r,dpl->volume,ntohs(dpl->duration),rp->timestamp);
session->postDtmfEvent(new AmRtpDtmfEvent(dpl, getLocalTelephoneEventRate(), rp->timestamp));
mem.freePacket(rp);
return RTP_DTMF;
}
assert(rp->getData());
if(rp->getDataSize() > size){
ERROR("received too big RTP packet\n");
mem.freePacket(rp);
return RTP_BUFFER_SIZE;
}
memcpy(buffer,rp->getData(),rp->getDataSize());
ts = rp->timestamp;
out_payload = rp->payload;
int res = rp->getDataSize();
mem.freePacket(rp);
return res;
}
int AmRtpStream::receive( unsigned char* buffer, unsigned int size,
unsigned int& ts, int &out_payload)
{
AmRtpPacket* rp = NULL;
int err = nextPacket(rp);
if(err <= 0)
return err;
if (!rp)
return 0;
#ifndef SUPPORT_IPV6
if(passive) {
// #ifdef SUPPORT_IPV6
// struct sockaddr_storage recv_addr;
// #else
struct sockaddr_in recv_addr;
rp->getAddr(&recv_addr);
// symmetric RTP
if ((recv_addr.sin_port != r_saddr.sin_port)
|| (recv_addr.sin_addr.s_addr
!= r_saddr.sin_addr.s_addr)) {
string addr_str = get_addr_str(recv_addr.sin_addr);
int port = ntohs(recv_addr.sin_port);
setRAddr(addr_str,port);
DBG("Symmetric RTP: setting new remote address: %s:%i\n",
addr_str.c_str(),port);
// avoid comparing each time sender address
} else {
DBG("Symmetric RTP: remote end sends RTP from advertised address. Leaving passive mode.\n");
}
passive = false;
}
#endif
/* do we have a new talk spurt? */
begin_talk = ((last_payload == 13) || rp->marker);
last_payload = rp->payload;
if(!rp->getDataSize()) {
mem.freePacket(rp);
return RTP_EMPTY;
}
if (telephone_event_pt.get() && rp->payload == telephone_event_pt->payload_type)
{
dtmf_payload_t* dpl = (dtmf_payload_t*)rp->getData();
DBG("DTMF: event=%i; e=%i; r=%i; volume=%i; duration=%i\n",
dpl->event,dpl->e,dpl->r,dpl->volume,ntohs(dpl->duration));
session->postDtmfEvent(new AmRtpDtmfEvent(dpl, getTelephoneEventRate()));
mem.freePacket(rp);
return RTP_DTMF;
}
assert(rp->getData());
if(rp->getDataSize() > size){
ERROR("received too big RTP packet\n");
mem.freePacket(rp);
return RTP_BUFFER_SIZE;
}
memcpy(buffer,rp->getData(),rp->getDataSize());
ts = rp->timestamp;
out_payload = rp->payload;
int res = rp->getDataSize();
mem.freePacket(rp);
return res;
}
