kenmirrors
/
freeswitch
mirror of https://github.com/signalwire/freeswitch.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

rtcp-mux

This commit is contained in:
Anthony Minessale 2013-01-16 19:04:57 -06:00
parent 36d1388a99
commit 12e70149ff
4 changed files with 239 additions and 116 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/include/switch_rtp.h
View File

@ -230,7 +230,7 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_activate_rtcp_ice(switch_rtp_t *rtp_s
\param send_rate interval in milliseconds to send at
\return SWITCH_STATUS_SUCCESS
*/
SWITCH_DECLARE(switch_status_t) switch_rtp_activate_rtcp(switch_rtp_t *rtp_session, int send_rate, switch_port_t remote_port);
SWITCH_DECLARE(switch_status_t) switch_rtp_activate_rtcp(switch_rtp_t *rtp_session, int send_rate, switch_port_t remote_port, switch_bool_t mux);
/*!
\brief Acvite a jitter buffer on an RTP session

9
src/include/switch_types.h
View File

@ -641,10 +641,10 @@ typedef enum {
SWITCH_RTP_FLAG_DEBUG_RTP_WRITE,
SWITCH_RTP_FLAG_VIDEO,
SWITCH_RTP_FLAG_ENABLE_RTCP,
/* don't add any below this one */
SWITCH_RTP_FLAG_RTCP_MUX,
SWITCH_RTP_FLAG_INVALID
} switch_rtp_flag_enum_t;
typedef uint32_t switch_rtp_flag_t;
} switch_rtp_flag_t;
typedef enum {
RTP_BUG_NONE = 0, /* won't be using this one much ;) */
@ -1336,7 +1336,8 @@ typedef enum {
SFF_DYNAMIC = (1 << 6),
SFF_ZRTP = (1 << 7),
SFF_UDPTL_PACKET = (1 << 8),
SFF_NOT_AUDIO = (1 << 9)
SFF_NOT_AUDIO = (1 << 9),
SFF_RTCP = (1 << 10)
} switch_frame_flag_enum_t;
typedef uint32_t switch_frame_flag_t;

68
src/switch_core_media.c
View File

@ -29,7 +29,7 @@
*
*/
#define RTCP_MUX
#include <switch.h>
#include <switch_ssl.h>
#include <switch_stun.h>
@ -118,8 +118,6 @@ typedef struct ice_s {
char *pwd;
char *options;
} ice_t;
typedef struct switch_rtp_engine_s {
@ -160,6 +158,8 @@ typedef struct switch_rtp_engine_s {
ice_t ice_in;
ice_t ice_out;
int8_t rtcp_mux;
} switch_rtp_engine_t;
@ -1799,7 +1799,7 @@ static void check_ice(switch_media_handle_t *smh, switch_media_type_t type, sdp_
{
switch_rtp_engine_t *engine = &smh->engines[type];
sdp_attribute_t *attr;
int i = 0;
int i = 0, got_rtcp_mux = 0;
char tmp[80] = "";
for (attr = m->m_attributes; attr; attr = attr->a_next) {
@ -1818,11 +1818,17 @@ static void check_ice(switch_media_handle_t *smh, switch_media_type_t type, sdp_
engine->ice_in.pwd = switch_core_session_strdup(smh->session, attr->a_value);
} else if (!strcasecmp(attr->a_name, "ice-options")) {
engine->ice_in.options = switch_core_session_strdup(smh->session, attr->a_value);
#ifdef RTCP_MUX
} else if (!strcasecmp(attr->a_name, "rtcp-mux")) {
engine->rtcp_mux = SWITCH_TRUE;
got_rtcp_mux++;
#endif
} else if (!strcasecmp(attr->a_name, "candidate")) {
if (!engine->cand_acl_count) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(smh->session), SWITCH_LOG_WARNING, "NO candidate ACL defined, skipping candidate check.\n");
return;
goto end;
}
@ -1921,6 +1927,13 @@ static void check_ice(switch_media_handle_t *smh, switch_media_type_t type, sdp_
engine->remote_rtcp_port = engine->ice_in.cands[1].con_port;
}
end:
if (!got_rtcp_mux) {
engine->rtcp_mux = -1;
}
}
//?
@ -2117,8 +2130,8 @@ SWITCH_DECLARE(uint8_t) switch_core_media_negotiate_sdp(switch_core_session_t *s
got_webrtc++;
switch_channel_set_flag(session->channel, CF_WEBRTC);
switch_channel_set_flag(session->channel, CF_ICE);
smh->mparams->rtcp_audio_interval_msec = "2500";
smh->mparams->rtcp_video_interval_msec = "2500";
smh->mparams->rtcp_audio_interval_msec = "5000";
smh->mparams->rtcp_video_interval_msec = "5000";
}
if (m->m_proto == sdp_proto_srtp || m->m_proto == sdp_proto_extended_srtp) {
@ -3256,6 +3269,12 @@ static void gen_ice(switch_core_session_t *session, switch_media_type_t type, co
engine = &smh->engines[type];
#ifdef RTCP_MUX
if (!engine->rtcp_mux && type == SWITCH_MEDIA_TYPE_AUDIO) {
engine->rtcp_mux = SWITCH_TRUE;
}
#endif
if (!smh->msid) {
switch_stun_random_string(tmp, 32, NULL);
tmp[32] = '\0';
@ -3655,7 +3674,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_media_activate_rtp(switch_core_sessi
if (!strcasecmp(val, "passthru")) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "Activating RTCP PASSTHRU PORT %d\n", remote_rtcp_port);
switch_rtp_activate_rtcp(a_engine->rtp_session, -1, remote_rtcp_port);
switch_rtp_activate_rtcp(a_engine->rtp_session, -1, remote_rtcp_port, a_engine->rtcp_mux > 0);
} else {
int interval = atoi(val);
if (interval < 100 || interval > 5000) {
@ -3663,7 +3682,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_media_activate_rtp(switch_core_sessi
"Invalid rtcp interval spec [%d] must be between 100 and 5000\n", interval);
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "Activating RTCP PORT %d\n", remote_rtcp_port);
switch_rtp_activate_rtcp(a_engine->rtp_session, interval, remote_rtcp_port);
switch_rtp_activate_rtcp(a_engine->rtp_session, interval, remote_rtcp_port, a_engine->rtcp_mux > 0);
}
}
@ -4029,7 +4048,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_media_activate_rtp(switch_core_sessi
}
if (!strcasecmp(val, "passthru")) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "Activating VIDEO RTCP PASSTHRU PORT %d\n", remote_port);
switch_rtp_activate_rtcp(v_engine->rtp_session, -1, remote_port);
switch_rtp_activate_rtcp(v_engine->rtp_session, -1, remote_port, v_engine->rtcp_mux > 0);
} else {
int interval = atoi(val);
if (interval < 100 || interval > 5000) {
@ -4037,7 +4056,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_media_activate_rtp(switch_core_sessi
"Invalid rtcp interval spec [%d] must be between 100 and 5000\n", interval);
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "Activating VIDEO RTCP PORT %d\n", remote_port);
switch_rtp_activate_rtcp(v_engine->rtp_session, interval, remote_port);
switch_rtp_activate_rtcp(v_engine->rtp_session, interval, remote_port, v_engine->rtcp_mux > 0);
}
}
@ -4258,8 +4277,12 @@ static void generate_m(switch_core_session_t *session, char *buf, size_t buflen,
}
if (smh->mparams->rtcp_audio_interval_msec) {
if (a_engine->rtcp_mux > 0) {
switch_snprintf(buf + strlen(buf), buflen - strlen(buf), "a=rtcp-mux\n");
} else {
switch_snprintf(buf + strlen(buf), buflen - strlen(buf), "a=rtcp:%d IN %s %s\n", port + 1, family, ip);
}
}
//switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=ssrc:%u\n", a_engine->ssrc);
@ -4302,16 +4325,17 @@ static void generate_m(switch_core_session_t *session, char *buf, size_t buflen,
switch_snprintf(buf + strlen(buf), buflen - strlen(buf), "a=candidate:%s 2 %s %u %s %d typ host generation 0\n",
tmp1, ice_out->cands[0].transport, c2,
ice_out->cands[0].con_addr, ice_out->cands[0].con_port + 1
ice_out->cands[0].con_addr, ice_out->cands[0].con_port + (a_engine->rtcp_mux > 0 ? 0 : 1)
);
switch_snprintf(buf + strlen(buf), buflen - strlen(buf), "a=candidate:%s 2 %s %u %s %d typ srflx generation 0\n",
tmp2, ice_out->cands[0].transport, c4,
ice_out->cands[0].con_addr, ice_out->cands[0].con_port + 1
ice_out->cands[0].con_addr, ice_out->cands[0].con_port + (a_engine->rtcp_mux > 0 ? 0 : 1)
);
#ifdef GOOGLE_ICE
switch_snprintf(buf + strlen(buf), buflen - strlen(buf), "a=ice-options:google-ice\n");
#endif
@ -4703,8 +4727,12 @@ SWITCH_DECLARE(void) switch_core_media_gen_local_sdp(switch_core_session_t *sess
if (smh->mparams->rtcp_audio_interval_msec) {
if (a_engine->rtcp_mux > 0) {
switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=rtcp-mux\n");
} else {
switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=rtcp:%d IN %s %s\n", port + 1, family, ip);
}
}
//switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=ssrc:%u\n", a_engine->ssrc);
@ -4743,14 +4771,15 @@ SWITCH_DECLARE(void) switch_core_media_gen_local_sdp(switch_core_session_t *sess
);
switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=candidate:%s 2 %s %u %s %d typ host generation 0\n",
tmp1, ice_out->cands[0].transport, c2,
ice_out->cands[0].con_addr, ice_out->cands[0].con_port + 1
ice_out->cands[0].con_addr, ice_out->cands[0].con_port + (a_engine->rtcp_mux > 0 ? 0 : 1)
);
switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=candidate:%s 2 %s %u %s %d typ srflx generation 0\n",
tmp2, ice_out->cands[0].transport, c4,
ice_out->cands[0].con_addr, ice_out->cands[0].con_port + 1
ice_out->cands[0].con_addr, ice_out->cands[0].con_port + (a_engine->rtcp_mux > 0 ? 0 : 1)
);
@ -4978,8 +5007,12 @@ SWITCH_DECLARE(void) switch_core_media_gen_local_sdp(switch_core_session_t *sess
if (smh->mparams->rtcp_audio_interval_msec) {
if (v_engine->rtcp_mux > 0) {
switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=rtcp-mux\n");
} else {
switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=rtcp:%d IN %s %s\n", v_port + 1, family, ip);
}
}
//switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=ssrc:%u\n", v_engine->ssrc);
@ -5019,16 +5052,17 @@ SWITCH_DECLARE(void) switch_core_media_gen_local_sdp(switch_core_session_t *sess
switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=candidate:%s 2 %s %u %s %d typ host generation 0\n",
tmp1, ice_out->cands[0].transport, c2,
ice_out->cands[0].con_addr, ice_out->cands[0].con_port + 1
ice_out->cands[0].con_addr, ice_out->cands[0].con_port + (v_engine->rtcp_mux > 0 ? 0 : 1)
);
switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=candidate:%s 2 %s %u %s %d typ srflx generation 0\n",
tmp2, ice_out->cands[0].transport, c4,
ice_out->cands[0].con_addr, ice_out->cands[0].con_port + 1
ice_out->cands[0].con_addr, ice_out->cands[0].con_port + (v_engine->rtcp_mux > 0 ? 0 : 1)
);
#ifdef GOOGLE_ICE
switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=ice-options:google-ice\n");
#endif

234
src/switch_rtp.c
View File

@ -193,6 +193,7 @@ struct switch_rtp {
switch_sockaddr_t *remote_addr, *rtcp_remote_addr;
rtp_msg_t recv_msg;
rtcp_msg_t rtcp_recv_msg;
rtcp_msg_t *rtcp_recv_msg_p;
switch_sockaddr_t *remote_stun_addr;
@ -1115,7 +1116,7 @@ static int check_srtp_and_ice(switch_rtp_t *rtp_session)
}
}
if (rtp_session->rtcp_ice.ice_user && !rtp_session->rtcp_ice.ready) {
if (rtp_session->rtcp_ice.ice_user && !rtp_session->rtcp_ice.rready) {
rtcp_ok = 0;
}
@ -1124,7 +1125,6 @@ static int check_srtp_and_ice(switch_rtp_t *rtp_session)
rtp_session->rtcp_interval && (rtp_session->stats.read_count % rtp_session->rtcp_interval) == 0) {
struct switch_rtcp_senderinfo *sr = (struct switch_rtcp_senderinfo*) rtp_session->rtcp_send_msg.body;
const char* str_cname=NULL;
//rtp_msg_t *send_msg = &rtp_session->send_msg;
switch_size_t rtcp_bytes;
switch_byte_t *ptr = (switch_byte_t *)rtp_session->rtcp_send_msg.body;
@ -1237,9 +1237,9 @@ static int check_srtp_and_ice(switch_rtp_t *rtp_session)
rtcp_bytes = sbytes;
}
#endif
if (switch_socket_sendto(rtp_session->rtcp_sock_output, rtp_session->rtcp_remote_addr, 0,
(void *)&rtp_session->rtcp_send_msg, &rtcp_bytes ) != SWITCH_STATUS_SUCCESS) {
if (switch_socket_sendto(rtp_session->rtcp_sock_output, rtp_session->rtcp_remote_addr, 0, (void *)&rtp_session->rtcp_send_msg, &rtcp_bytes ) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG,"RTCP packet not written\n");
} else {
rtp_session->stats.inbound.period_packet_count = 0;
@ -1719,6 +1719,10 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_udptl_mode(switch_rtp_t *rtp_session)
switch_socket_shutdown(rtp_session->rtcp_sock_output, SWITCH_SHUTDOWN_READWRITE);
}
if (rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) {
rtp_session->rtcp_sock_input = NULL;
rtp_session->rtcp_sock_output = NULL;
} else {
if ((sock = rtp_session->rtcp_sock_input)) {
rtp_session->rtcp_sock_input = NULL;
switch_socket_close(sock);
@ -1730,6 +1734,7 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_udptl_mode(switch_rtp_t *rtp_session)
}
}
}
}
switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_UDPTL);
switch_rtp_set_flag(rtp_session, SWITCH_RTP_FLAG_PROXY_MEDIA);
@ -2417,7 +2422,7 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_activate_jitter_buffer(switch_rtp_t *
return SWITCH_STATUS_FALSE;
}
SWITCH_DECLARE(switch_status_t) switch_rtp_activate_rtcp(switch_rtp_t *rtp_session, int send_rate, switch_port_t remote_port)
SWITCH_DECLARE(switch_status_t) switch_rtp_activate_rtcp(switch_rtp_t *rtp_session, int send_rate, switch_port_t remote_port, switch_bool_t mux)
{
const char *err = NULL;
@ -2431,17 +2436,40 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_activate_rtcp(switch_rtp_t *rtp_sessi
rtp_session->remote_rtcp_port = rtp_session->remote_port + 1;
}
if (mux) {
rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]++;
}
if (send_rate == -1) {
rtp_session->flags[SWITCH_RTP_FLAG_RTCP_PASSTHRU] = 1;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG, "RTCP passthru enabled. Remote Port: %d\n", rtp_session->remote_rtcp_port);
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG, "RTCP send rate is: %d and packet rate is: %d Remote Port: %d\n",
send_rate, rtp_session->ms_per_packet, rtp_session->remote_rtcp_port);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG, "RTCP send rate is: %d and packet rate is: %d Remote Port: %d\n", send_rate, rtp_session->ms_per_packet, rtp_session->remote_rtcp_port);
rtp_session->rtcp_interval = send_rate/(rtp_session->ms_per_packet/1000);
}
if (rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) {
if (switch_sockaddr_info_get(&rtp_session->rtcp_remote_addr, rtp_session->eff_remote_host_str, SWITCH_UNSPEC,
rtp_session->remote_rtcp_port, 0, rtp_session->pool) != SWITCH_STATUS_SUCCESS || !rtp_session->rtcp_remote_addr) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_ERROR, "RTCP MUX Remote Address Error!");
return SWITCH_STATUS_FALSE;
}
rtp_session->rtcp_local_addr = rtp_session->local_addr;
rtp_session->rtcp_sock_input = rtp_session->sock_input;
rtp_session->rtcp_sock_output = rtp_session->rtcp_sock_output;
rtp_session->rtcp_recv_msg_p = (rtcp_msg_t *) &rtp_session->recv_msg;
return enable_remote_rtcp_socket(rtp_session, &err);
} else {
rtp_session->rtcp_recv_msg_p = (rtcp_msg_t *) &rtp_session->rtcp_recv_msg;
}
return enable_local_rtcp_socket(rtp_session, &err) || enable_remote_rtcp_socket(rtp_session, &err);
}
@ -3100,6 +3128,18 @@ static switch_status_t read_rtp_packet(switch_rtp_t *rtp_session, switch_size_t
*bytes = sizeof(rtp_msg_t);
status = switch_socket_recvfrom(rtp_session->from_addr, rtp_session->sock_input, 0, (void *) &rtp_session->recv_msg, bytes);
if (status == SWITCH_STATUS_SUCCESS && *bytes && rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) {
if (rtp_session->recv_msg.header.pt != rtp_session->rpayload && (!rtp_session->recv_te || rtp_session->recv_msg.header.pt != rtp_session->recv_te) &&
(!rtp_session->cng_pt || rtp_session->recv_msg.header.pt != rtp_session->cng_pt) &&
rtp_session->rtcp_recv_msg_p->header.version == 2 &&
rtp_session->rtcp_recv_msg_p->header.type > 199 && rtp_session->rtcp_recv_msg_p->header.type < 300) { //rtcp muxed
*flags |= SFF_RTCP;
return SWITCH_STATUS_SUCCESS;
}
}
ts = ntohl(rtp_session->recv_msg.header.ts);
rtp_session->recv_msg.ebody = NULL;
@ -3171,6 +3211,7 @@ static switch_status_t read_rtp_packet(switch_rtp_t *rtp_session, switch_size_t
return SWITCH_STATUS_SUCCESS;
}
if (*bytes) {
rtp_session->stats.inbound.raw_bytes += *bytes;
if (rtp_session->recv_te && rtp_session->recv_msg.header.pt == rtp_session->recv_te) {
@ -3241,9 +3282,9 @@ static switch_status_t read_rtp_packet(switch_rtp_t *rtp_session, switch_size_t
if (++rtp_session->srtp_errs >= MAX_SRTP_ERRS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_ERROR,
"Error: SRTP %s unprotect failed with code %d%s\n", rtp_type(rtp_session), stat,
"Error: SRTP %s unprotect failed with code %d%s %ld\n", rtp_type(rtp_session), stat,
stat == err_status_replay_fail ? " (replay check failed)" : stat ==
err_status_auth_fail ? " (auth check failed)" : "");
err_status_auth_fail ? " (auth check failed)" : "", *bytes);
return SWITCH_STATUS_FALSE;
} else {
sbytes = 0;
@ -3318,6 +3359,61 @@ static switch_status_t read_rtp_packet(switch_rtp_t *rtp_session, switch_size_t
return status;
}
static switch_status_t process_rtcp_packet(switch_rtp_t *rtp_session, switch_size_t *bytes)
{
switch_status_t status = SWITCH_STATUS_FALSE;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG10,"Received an RTCP packet of length %" SWITCH_SIZE_T_FMT " bytes\n", *bytes);
if (rtp_session->rtcp_recv_msg_p->header.version == 2) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG10,"RTCP packet type is %d\n", rtp_session->rtcp_recv_msg_p->header.type);
if (rtp_session->rtcp_recv_msg_p->header.type == 200) {
struct switch_rtcp_senderinfo* sr = (struct switch_rtcp_senderinfo*)rtp_session->rtcp_recv_msg_p->body;
rtp_session->rtcp_fresh_frame = 1;
rtp_session->stats.rtcp.packet_count += ntohl(sr->pc);
rtp_session->stats.rtcp.octet_count += ntohl(sr->oc);
rtp_session->stats.rtcp.peer_ssrc = ntohl(sr->ssrc);
/* sender report */
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG10,"Received a SR with %d report blocks, " \
"length in words = %d, " \
"SSRC = 0x%X, " \
"NTP MSW = %u, " \
"NTP LSW = %u, " \
"RTP timestamp = %u, " \
"Sender Packet Count = %u, " \
"Sender Octet Count = %u\n",
rtp_session->rtcp_recv_msg_p->header.count,
ntohs((uint16_t)rtp_session->rtcp_recv_msg_p->header.length),
ntohl(sr->ssrc),
ntohl(sr->ntp_msw),
ntohl(sr->ntp_lsw),
ntohl(sr->ts),
ntohl(sr->pc),
ntohl(sr->oc));
}
} else {
if (rtp_session->rtcp_recv_msg_p->header.version != 2) {
if (rtp_session->rtcp_recv_msg_p->header.version == 0) {
if (rtp_session->ice.ice_user) {
handle_ice(rtp_session, &rtp_session->rtcp_ice, (void *) rtp_session->rtcp_recv_msg_p, *bytes);
}
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session),
SWITCH_LOG_DEBUG, "Received an unsupported RTCP packet version %d\nn", rtp_session->rtcp_recv_msg_p->header.version);
}
}
status = SWITCH_STATUS_SUCCESS;
}
return status;
}
static switch_status_t read_rtcp_packet(switch_rtp_t *rtp_session, switch_size_t *bytes, switch_frame_flag_t *flags)
{
switch_status_t status = SWITCH_STATUS_FALSE;
@ -3329,20 +3425,21 @@ static switch_status_t read_rtcp_packet(switch_rtp_t *rtp_session, switch_size_t
switch_assert(bytes);
*bytes = sizeof(rtcp_msg_t);
if ((status = switch_socket_recvfrom(rtp_session->rtcp_from_addr, rtp_session->rtcp_sock_input, 0, (void *) &rtp_session->rtcp_recv_msg, bytes))
if ((status = switch_socket_recvfrom(rtp_session->rtcp_from_addr, rtp_session->rtcp_sock_input, 0, (void *) rtp_session->rtcp_recv_msg_p, bytes))
!= SWITCH_STATUS_SUCCESS) {
*bytes = 0;
}
#ifdef ENABLE_SRTP
if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_RECV] && rtp_session->rtcp_recv_msg.header.version == 2 && rtp_session->srtp_errs > 1) {
//if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_RECV] && (!rtp_session->ice.ice_user || rtp_session->rtcp_recv_msg.header.version == 2)) {
if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_RECV] && rtp_session->rtcp_recv_msg_p->header.version == 2 && rtp_session->srtp_errs > 1) {
//if (rtp_session->flags[SWITCH_RTP_FLAG_SECURE_RECV] && (!rtp_session->ice.ice_user || rtp_session->rtcp_recv_msg_p->header.version == 2)) {
int sbytes = (int) *bytes;
err_status_t stat = 0;
if ((stat = srtp_unprotect_rtcp(rtp_session->recv_ctx, &rtp_session->rtcp_recv_msg.header, &sbytes))) {
if ((stat = srtp_unprotect_rtcp(rtp_session->recv_ctx, &rtp_session->rtcp_recv_msg_p->header, &sbytes))) {
if (++rtp_session->srtp_errs > 1) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_ERROR, "Disable Secure RTP due to unprotect error.\n");
}
@ -3357,13 +3454,13 @@ static switch_status_t read_rtcp_packet(switch_rtp_t *rtp_session, switch_size_t
#ifdef ENABLE_ZRTP
if (zrtp_on && !rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA]) {
if (zrtp_on && !rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] && rtp_session->rtcp_recv_msg_p->header.version == 2) {
/* ZRTP Recv */
if (bytes) {
unsigned int sbytes = (int) *bytes;
zrtp_status_t stat = 0;
stat = zrtp_process_srtcp(rtp_session->zrtp_stream, (void *) &rtp_session->rtcp_recv_msg, &sbytes);
stat = zrtp_process_srtcp(rtp_session->zrtp_stream, (void *) rtp_session->rtcp_recv_msg_p, &sbytes);
switch (stat) {
case zrtp_status_ok:
@ -3386,52 +3483,7 @@ static switch_status_t read_rtcp_packet(switch_rtp_t *rtp_session, switch_size_t
if (*bytes) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG10,"Received an RTCP packet of length %" SWITCH_SIZE_T_FMT " bytes\n", *bytes);
if (rtp_session->rtcp_recv_msg.header.version == 2) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG10,"RTCP packet type is %d\n", rtp_session->rtcp_recv_msg.header.type);
if (rtp_session->rtcp_recv_msg.header.type == 200) {
struct switch_rtcp_senderinfo* sr = (struct switch_rtcp_senderinfo*)rtp_session->rtcp_recv_msg.body;
rtp_session->rtcp_fresh_frame = 1;
rtp_session->stats.rtcp.packet_count += ntohl(sr->pc);
rtp_session->stats.rtcp.octet_count += ntohl(sr->oc);
rtp_session->stats.rtcp.peer_ssrc = ntohl(sr->ssrc);
/* sender report */
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG10,"Received a SR with %d report blocks, " \
"length in words = %d, " \
"SSRC = 0x%X, " \
"NTP MSW = %u, " \
"NTP LSW = %u, " \
"RTP timestamp = %u, " \
"Sender Packet Count = %u, " \
"Sender Octet Count = %u\n",
rtp_session->rtcp_recv_msg.header.count,
ntohs((uint16_t)rtp_session->rtcp_recv_msg.header.length),
ntohl(sr->ssrc),
ntohl(sr->ntp_msw),
ntohl(sr->ntp_lsw),
ntohl(sr->ts),
ntohl(sr->pc),
ntohl(sr->oc));
}
} else {
if (rtp_session->rtcp_recv_msg.header.version != 2) {
if (rtp_session->rtcp_recv_msg.header.version == 0) {
if (rtp_session->ice.ice_user) {
handle_ice(rtp_session, &rtp_session->rtcp_ice, (void *) &rtp_session->rtcp_recv_msg, *bytes);
}
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session),
SWITCH_LOG_DEBUG, "Received an unsupported RTCP packet version %d\nn", rtp_session->rtcp_recv_msg.header.version);
}
}
status = SWITCH_STATUS_SUCCESS;
}
return process_rtcp_packet(rtp_session, bytes);
}
return status;
@ -3476,6 +3528,8 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
while (switch_rtp_ready(rtp_session)) {
int do_cng = 0;
int read_pretriggered = 0;
int has_rtcp = 0;
bytes = 0;
if (rtp_session->flags[SWITCH_RTP_FLAG_USE_TIMER]) {
@ -3486,6 +3540,12 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
rtp_session->read_pollfd) {
if (switch_poll(rtp_session->read_pollfd, 1, &fdr, 0) == SWITCH_STATUS_SUCCESS) {
status = read_rtp_packet(rtp_session, &bytes, flags, SWITCH_FALSE);
if ((*flags & SFF_RTCP)) {
*flags &= ~SFF_RTCP;
has_rtcp = 1;
goto rtcp;
}
/* switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG, "Initial (%i) %d\n", status, bytes); */
if (status != SWITCH_STATUS_FALSE) {
read_pretriggered = 1;
@ -3539,6 +3599,7 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
recvfrom:
rtp_session->stats.read_count++;
if (!read_pretriggered) {
@ -3567,7 +3628,6 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
poll_status = switch_poll(rtp_session->read_pollfd, 1, &fdr, pt);
if (rtp_session->dtmf_data.out_digit_dur > 0) {
return_cng_frame();
}
@ -3580,6 +3640,11 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
read_pretriggered = 0;
} else {
status = read_rtp_packet(rtp_session, &bytes, flags, SWITCH_TRUE);
if ((*flags & SFF_RTCP)) {
*flags &= ~SFF_RTCP;
has_rtcp = 1;
goto rtcp;
}
//switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG, "Read bytes (%i) %ld\n", status, bytes);
}
poll_loop = 0;
@ -3649,18 +3714,35 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
}
}
rtcp:
if (rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP] && rtp_session->rtcp_read_pollfd) {
if (bytes && rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP]) {
rtcp_poll_status = SWITCH_STATUS_FALSE;
if (rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX] && has_rtcp) {
if (rtp_session->rtcp_recv_msg_p->header.version == 2) { //rtcp muxed
rtcp_status = rtcp_poll_status = SWITCH_STATUS_SUCCESS;
rtcp_bytes = bytes;
}
has_rtcp = 0;
} else if (rtp_session->rtcp_read_pollfd) {
rtcp_poll_status = switch_poll(rtp_session->rtcp_read_pollfd, 1, &rtcp_fdr, 0);
}
if (rtcp_poll_status == SWITCH_STATUS_SUCCESS) {
if (!rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) {
rtcp_status = read_rtcp_packet(rtp_session, &rtcp_bytes, flags);
}
if (rtcp_status == SWITCH_STATUS_SUCCESS) {
switch_rtp_reset_media_timer(rtp_session);
if (rtp_session->flags[SWITCH_RTP_FLAG_RTCP_PASSTHRU]) {
switch_channel_t *channel = switch_core_session_get_channel(rtp_session->session);
const char *uuid = switch_channel_get_partner_uuid(channel);
@ -3673,7 +3755,7 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
if ((other_rtp_session = switch_channel_get_private(other_channel, "__rtcp_audio_rtp_session")) &&
other_rtp_session->rtcp_sock_output &&
switch_rtp_test_flag(other_rtp_session, SWITCH_RTP_FLAG_ENABLE_RTCP)) {
*other_rtp_session->rtcp_send_msg.body = *rtp_session->rtcp_recv_msg.body;
*other_rtp_session->rtcp_send_msg.body = *rtp_session->rtcp_recv_msg_p->body;
#ifdef ENABLE_SRTP
if (switch_rtp_test_flag(other_rtp_session, SWITCH_RTP_FLAG_SECURE_SEND)) {
@ -3727,11 +3809,15 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
}
}
}
}
}
if (rtp_session->flags[SWITCH_RTP_FLAG_RTCP_MUX]) {
process_rtcp_packet(rtp_session, &bytes);
ret = 1;
goto end;
}
}
}
}
if (bytes && rtp_session->recv_msg.header.version == 2 &&
!rtp_session->flags[SWITCH_RTP_FLAG_PROXY_MEDIA] && !rtp_session->flags[SWITCH_RTP_FLAG_UDPTL] &&
@ -4179,15 +4265,17 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_read(switch_rtp_t *rtp_session, void
SWITCH_DECLARE(switch_status_t) switch_rtcp_zerocopy_read_frame(switch_rtp_t *rtp_session, switch_rtcp_frame_t *frame)
{
if (!rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP]) {
return SWITCH_STATUS_FALSE;
}
/* A fresh frame has been found! */
if (rtp_session->rtcp_fresh_frame) {
struct switch_rtcp_senderinfo* sr = (struct switch_rtcp_senderinfo*)rtp_session->rtcp_recv_msg.body;
struct switch_rtcp_senderinfo* sr = (struct switch_rtcp_senderinfo*)rtp_session->rtcp_recv_msg_p->body;
/* we remove the header lenght because with directly have a pointer on the body */
unsigned packet_length = (ntohs((uint16_t) rtp_session->rtcp_recv_msg.header.length) + 1) * 4 - sizeof(switch_rtcp_hdr_t);
unsigned packet_length = (ntohs((uint16_t) rtp_session->rtcp_recv_msg_p->header.length) + 1) * 4 - sizeof(switch_rtcp_hdr_t);
unsigned int reportsOffset = sizeof(struct switch_rtcp_senderinfo);
int i = 0;
unsigned int offset;
@ -4196,7 +4284,7 @@ SWITCH_DECLARE(switch_status_t) switch_rtcp_zerocopy_read_frame(switch_rtp_t *rt
rtp_session->rtcp_fresh_frame = 0;
frame->ssrc = ntohl(sr->ssrc);
frame->packet_type = (uint16_t)rtp_session->rtcp_recv_msg.header.type;
frame->packet_type = (uint16_t)rtp_session->rtcp_recv_msg_p->header.type;
frame->ntp_msw = ntohl(sr->ntp_msw);
frame->ntp_lsw = ntohl(sr->ntp_lsw);
frame->timestamp = ntohl(sr->ts);
@ -4204,7 +4292,7 @@ SWITCH_DECLARE(switch_status_t) switch_rtcp_zerocopy_read_frame(switch_rtp_t *rt
frame->octect_count = ntohl(sr->oc);
for (offset = reportsOffset; offset < packet_length; offset += sizeof(struct switch_rtcp_report_block)) {
struct switch_rtcp_report_block* report = (struct switch_rtcp_report_block*) (rtp_session->rtcp_recv_msg.body + offset);
struct switch_rtcp_report_block* report = (struct switch_rtcp_report_block*) (rtp_session->rtcp_recv_msg_p->body + offset);
frame->reports[i].ssrc = ntohl(report->ssrc);
frame->reports[i].fraction = (uint8_t)ntohl(report->fraction);
frame->reports[i].lost = ntohl(report->lost);