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sip: add receiver report to rtcp 

- only one to one rtcp is supported for currently
     - jitter stats and loss stats are not real
This commit is contained in:
James Zhang 2012-07-03 14:29:50 -04:00
parent c1bc9ac76d
commit c544ff4b81
2 changed files with 88 additions and 6 deletions
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3
src/include/switch_types.h
View File

@ -547,6 +547,8 @@ typedef struct {
typedef struct {
uint32_t packet_count;
uint32_t octet_count;
uint32_t peer_ssrc;
} switch_rtcp_numbers_t;
typedef struct {
@ -769,7 +771,6 @@ typedef struct {
unsigned type:8; /* packet type */
unsigned length:16; /* length in 32-bit words - 1 */
} switch_rtcp_hdr_t;
#else /* BIG_ENDIAN */
typedef struct {

91
src/switch_rtp.c
View File

@ -264,6 +264,46 @@ struct switch_rtp {
switch_size_t last_flush_packet_count;
};
struct switch_rtcp_source {
unsigned ssrc1:32;
unsigned fraction_lost:8;
unsigned cumulative_lost:24;
unsigned hi_seq_recieved:32;
unsigned interarrival_jitter:32;
unsigned lsr:32;
unsigned lsr_delay:32;
};
#if SWITCH_BYTE_ORDER == __BIG_ENDIAN
struct switch_rtcp_s_desc_head {
unsigned v:2;
unsigned padding:1;
unsigned sc:5;
unsigned pt:8;
unsigned length:16;
};
#else /* BIG_ENDIAN */
struct switch_rtcp_s_desc_head {
unsigned sc:5;
unsigned padding:1;
unsigned v:2;
unsigned pt:8;
unsigned length:16;
};
#endif
struct switch_rtcp_s_desc_trunk {
unsigned ssrc:32;
unsigned cname:8;
unsigned length:8;
char text[1];
};
struct switch_rtcp_senderinfo {
unsigned ssrc:32;
unsigned ntp_msw:32;
@ -271,6 +311,9 @@ struct switch_rtcp_senderinfo {
unsigned ts:32;
unsigned pc:32;
unsigned oc:32;
struct switch_rtcp_source sr_source;
struct switch_rtcp_s_desc_head sr_desc_head;
struct switch_rtcp_s_desc_trunk sr_desc_ssrc;
};
typedef enum {
@ -1637,8 +1680,8 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_create(switch_rtp_t **new_rtp_session
rtp_session->rtcp_send_msg.header.version = 2;
rtp_session->rtcp_send_msg.header.p = 0;
rtp_session->rtcp_send_msg.header.type = 200;
rtp_session->rtcp_send_msg.header.count = 0;
rtp_session->rtcp_send_msg.header.length = htons(6);
rtp_session->rtcp_send_msg.header.count = 1;
rtp_session->rtcp_send_msg.header.length = htons(12);
switch_rtp_set_interval(rtp_session, ms_per_packet, samples_per_interval);
@ -2823,9 +2866,10 @@ static switch_status_t read_rtcp_packet(switch_rtp_t *rtp_session, switch_size_t
rtp_session->stats.rtcp.packet_count += sr->pc;
rtp_session->stats.rtcp.octet_count += sr->oc;
rtp_session->stats.rtcp.peer_ssrc = ntohl(sr->ssrc);
/* sender report */
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG10,"Received a SR with %d report blocks, " \
switch_log_printf(SWITCH_CHANNEL_LOG, /*SWITCH_LOG_DEBUG10*/ SWITCH_LOG_INFO,"Received a SR with %d report blocks, " \
"length in words = %d, " \
"SSRC = 0x%X, " \
"NTP MSW = %u, " \
@ -4025,15 +4069,52 @@ static int rtp_common_write(switch_rtp_t *rtp_session,
switch_test_flag(rtp_session, SWITCH_RTP_FLAG_ENABLE_RTCP) && !switch_test_flag(rtp_session, SWITCH_RTP_FLAG_RTCP_PASSTHRU) &&
rtp_session->rtcp_interval && (rtp_session->stats.outbound.packet_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;
sr->ssrc = send_msg->header.ssrc;
sr->ntp_msw = htonl((u_long)rtp_session->send_time / 1000000 + 2208988800UL);
sr->ntp_msw = htonl((u_long)(rtp_session->send_time / 1000000 + 2208988800UL));
/*
sr->ntp_lsw = htonl((u_long)(rtp_session->send_time % 1000000 * ((UINT_MAX * 1.0)/ 1000000.0)));
*/
sr->ntp_lsw = htonl((u_long)(rtp_session->send_time % 1000000 * 4294.967296));
sr->ts = send_msg->header.ts;
sr->pc = htonl(rtp_session->stats.outbound.packet_count);
sr->oc = htonl((rtp_session->stats.outbound.raw_bytes - rtp_session->stats.outbound.packet_count * sizeof(srtp_hdr_t)));
rtcp_bytes = sizeof(switch_rtcp_hdr_t) + sizeof(struct switch_rtcp_senderinfo);
sr->sr_source.ssrc1 = htonl(rtp_session->stats.rtcp.peer_ssrc);
sr->sr_source.fraction_lost |= 0;
sr->sr_source.cumulative_lost |= 0;
sr->sr_source.hi_seq_recieved = htonl(rtp_session->last_seq);
sr->sr_source.interarrival_jitter = htonl(0);
sr->sr_source.lsr = htonl(0);
sr->sr_source.lsr_delay = htonl(0);
sr->sr_desc_head.v = 0x02;
sr->sr_desc_head.padding = 0;
sr->sr_desc_head.sc = 1;
sr->sr_desc_head.pt = 202;
sr->sr_desc_head.length = htons(5);
sr->sr_desc_ssrc.ssrc = send_msg->header.ssrc; /*htonl(rtp_session->stats.rtcp.peer_ssrc); */
sr->sr_desc_ssrc.cname = 0x1;
{
char bufa[30];
str_cname = switch_get_addr(bufa, sizeof(bufa), rtp_session->rtcp_local_addr);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG10, "Setting RTCP src-1 to %s\n", str_cname);
sr->sr_desc_ssrc.length = strlen(str_cname);
memcpy ((char*)sr->sr_desc_ssrc.text, str_cname, strlen(str_cname));
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG10, "Setting RTCP src-1 LENGTH to %d (%d, %s)\n", sr->sr_desc_ssrc.length, sr->sr_desc_head.length, str_cname);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG10, "Setting msw = %d, lsw = %d \n", sr->ntp_msw, sr->ntp_lsw);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG10, "now = %lld, now lo = %d, now hi = %d\n", (int64_t)now, (int32_t)(now&0xFFFFFFFF), (int32_t)((now>>32&0xFFFFFFFF)));
rtcp_bytes = sizeof(switch_rtcp_hdr_t) + sizeof(struct switch_rtcp_senderinfo) + sr->sr_desc_ssrc.length -1 ;
#ifdef ENABLE_SRTP
if (switch_test_flag(rtp_session, SWITCH_RTP_FLAG_SECURE_SEND)) {
int sbytes = (int) rtcp_bytes;