static int sangoma_create_rtp(void *usr_priv, sngtc_codec_request_leg_t *codec_reg_leg, sngtc_codec_reply_leg_t* codec_reply_leg, void **rtp_fd)
{
switch_rtp_t *rtp_session = NULL;
switch_port_t rtp_port;
char codec_ip[255];
char local_ip[255];
switch_rtp_flag_t flags = 0;
int iana = 0;
const char *err = NULL;
struct sangoma_transcoding_session *sess = usr_priv;
struct in_addr local_ip_addr = { 0 };
local_ip_addr.s_addr = htonl(codec_reply_leg->host_ip);
switch_inet_ntop(AF_INET, &local_ip_addr, local_ip, sizeof(local_ip));
/* request a port */
if (!(rtp_port = switch_rtp_request_port(local_ip))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to allocate RTP port for IP %s\n", local_ip);
return -1;
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Allocated port %d for IP %s\n", rtp_port, local_ip);
codec_reg_leg->host_udp_port = rtp_port;
sngtc_codec_ipv4_hex_to_str(codec_reply_leg->codec_ip, codec_ip);
iana = codec_id_to_iana(codec_reg_leg->codec_id);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Creating RTP session for host (%s/%d) vocallo(%s/%d) Iana=%d ms=%d idx=%lu\n",
local_ip, rtp_port, codec_ip, codec_reply_leg->codec_udp_port, iana,
codec_reg_leg->ms*1000, sess->sessid);
/* create the RTP socket, dont use the session pool since the session may go away while the RTP socket should linger around
* until sangoma_transcode decides to kill it (possibly because the same RTP session is used for a different call) */
rtp_session = switch_rtp_new(local_ip, rtp_port,
codec_ip, codec_reply_leg->codec_udp_port,
iana,
sess->impl->samples_per_packet,
codec_reg_leg->ms*1000, /* microseconds per packet */
flags, NULL, &err, g_pool);
if (!rtp_session) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "failed to create switch rtp session: %s\n", err);
return -1;
}
*rtp_fd = rtp_session;
return 0;
}
static int sangoma_create_rtp_port(void *usr_priv, uint32_t host_ip, uint32_t *p_rtp_port, void **rtp_fd)
{
struct in_addr local_ip_addr = { 0 };
char local_ip[255];
switch_port_t rtp_port;
local_ip_addr.s_addr = htonl(host_ip);
switch_inet_ntop(AF_INET, &local_ip_addr, local_ip, sizeof(local_ip));
/* request a port */
if (!(rtp_port = switch_rtp_request_port(local_ip))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to allocate RTP port for IP %s\n", local_ip);
return -1;
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "New allocated port %d for IP %s/%d.%d.%d.%d\n", rtp_port, local_ip,
SNGTC_NIPV4(host_ip));
*p_rtp_port = rtp_port;
*rtp_fd = (void *)(long)rtp_port;
return 0;
}
static int oreka_setup_rtp(oreka_session_t *oreka, oreka_stream_type_t type)
{
switch_port_t rtp_port = 0;
switch_rtp_flag_t flags[SWITCH_RTP_FLAG_INVALID] = {0};
switch_rtp_t *rtp_stream = NULL;
switch_codec_implementation_t *codec_impl = NULL;
switch_status_t status = SWITCH_STATUS_SUCCESS;
int res = 0;
const char *err = "unknown error";
const char *type_str = type == FS_OREKA_READ ? "read" : "write";
if (type == FS_OREKA_READ) {
status = switch_core_session_get_read_impl(oreka->session, &oreka->read_impl);
codec_impl = &oreka->read_impl;
} else {
status = switch_core_session_get_write_impl(oreka->session, &oreka->write_impl);
codec_impl = &oreka->write_impl;
}
if (status != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "No %s codec implementation available!\n", type_str);
res = -1;
goto done;
}
if (!(rtp_port = switch_rtp_request_port(globals.local_ipv4_str))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to allocate %s RTP port for IP %s\n", type_str, globals.local_ipv4_str);
res = -1;
goto done;
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Allocated %s port %d for local IP %s, destination IP %s\n", type_str,
rtp_port, globals.local_ipv4_str, globals.sip_server_ipv4_str);
rtp_stream = switch_rtp_new(globals.local_ipv4_str, rtp_port,
globals.sip_server_ipv4_str, rtp_port,
0, /* PCMU IANA*/
codec_impl->samples_per_packet,
codec_impl->microseconds_per_packet,
flags, NULL, &err, switch_core_session_get_pool(oreka->session));
if (!rtp_stream) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to create %s RTP stream at %s:%d: %s\n",
type_str, globals.local_ipv4_str, rtp_port, err);
res = -1;
goto done;
}
switch_rtp_intentional_bugs(rtp_stream, RTP_BUG_SEND_LINEAR_TIMESTAMPS);
done:
if (res == -1) {
if (rtp_port) {
switch_rtp_release_port(globals.local_ipv4_str, rtp_port);
}
if (rtp_stream) {
switch_rtp_destroy(&rtp_stream);
}
} else {
if (type == FS_OREKA_READ) {
oreka->read_rtp_stream = rtp_stream;
oreka->read_rtp_port = rtp_port;
} else {
oreka->write_rtp_stream = rtp_stream;
oreka->write_rtp_port = rtp_port;
}
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Successfully created %s RTP stream at %s:%d at %dms@%dHz\n",
type_str, globals.local_ipv4_str, rtp_port, codec_impl->microseconds_per_packet/1000, codec_impl->samples_per_second);
return res;
}
