int AmSdp::getDynPayload(const string& name, int rate)
{
AmPlugIn* pi = AmPlugIn::instance();
const map<int, amci_payload_t*>& ref_payloads = pi->getPayloads();
for(map<int, amci_payload_t*>::const_iterator pl_it = ref_payloads.begin();
pl_it != ref_payloads.end(); ++pl_it)
if( (name == pl_it->second->name)
&& (rate == pl_it->second->sample_rate) )
return pl_it->first;
return -1;
}
int AmSdp::genRequest(const string& localip,int localport, string& out_buf)
{
AmPlugIn* plugin = AmPlugIn::instance();
const map<int,amci_payload_t*>& payloads = plugin->getPayloads();
const map<int,int>& payload_order = plugin->getPayloadOrder();
if(payloads.empty()){
ERROR("no payload plugin loaded.\n");
return -1;
}
string l_ip = "IP4 " + localip;
#ifdef SUPPORT_IPV6
if(localip.find('.') == string::npos)
l_ip = "IP6 " + localip;
#endif
out_buf =
"v=0\r\n"
"o=username 0 0 IN " + l_ip + "\r\n"
"s=session\r\n"
"c=IN " + l_ip + "\r\n"
"t=0 0\r\n"
"m=audio " + int2str(localport) + " RTP/AVP ";
map<int,int>::const_iterator it = payload_order.begin();
out_buf += int2str((it++)->second);
for(; it != payload_order.end(); ++it)
out_buf += string(" ") + int2str(it->second);
out_buf += "\r\n";
for (it = payload_order.begin(); it != payload_order.end(); ++it) {
map<int,amci_payload_t*>::const_iterator it2 = payloads.find(it->second);
if (it2 != payloads.end()) {
out_buf += "a=rtpmap:" + int2str(it2->first)
+ " " + string(it2->second->name)
+ "/" + int2str(it2->second->sample_rate)
+ "\r\n";
} else {
ERROR("Payload %d was not found in payloads map!\n", it->second);
return -1;
}
}
return 0;
}