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FS-11549: don't send the reception report block when we need to send fast feedback (do like Chrome does it, don't confuse peer's stats). 

FS-11549: don't send RTCP RR unless we're receiver only.
This commit is contained in:
Dragos Oancea 2018-12-03 15:52:49 +00:00
parent d6169a3845
commit f5a736f037
1 changed files with 24 additions and 9 deletions
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33
src/switch_rtp.c
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@ -2033,7 +2033,7 @@ static int using_ice(switch_rtp_t *rtp_session)
static int check_rtcp_and_ice(switch_rtp_t *rtp_session)
{
int ret = 0;
int rtcp_ok = 0, rtcp_fb = 0, send_rr = 0;
int rtcp_ok = 0, rtcp_fb = 0, force_send_rr = 0;
switch_time_t now = switch_micro_time_now();
int rate = 0, nack_ttl = 0;
uint32_t cur_nack[MAX_NACK] = { 0 };
@ -2086,7 +2086,7 @@ static int check_rtcp_and_ice(switch_rtp_t *rtp_session)
if (rtp_session->send_rr) {
rtp_session->send_rr = 0;
rtcp_ok = 1;
send_rr = 1;
force_send_rr = 1;
}
//switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_ERROR, "TIME CHECK %d > %d\n", (int)((now - rtp_session->rtcp_last_sent) / 1000), rate);
@ -2110,17 +2110,18 @@ static int check_rtcp_and_ice(switch_rtp_t *rtp_session)
//switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_ERROR, "WTF %d %d %d %d\n", rate, rtp_session->rtcp_sent_packets, rtcp_ok, nack_ttl);
if (rtp_session->rtcp_sock_output && rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP] && !rtp_session->flags[SWITCH_RTP_FLAG_RTCP_PASSTHRU] && rtcp_ok) {
if (rtp_session->rtcp_sock_output && rtp_session->flags[SWITCH_RTP_FLAG_ENABLE_RTCP] && !rtp_session->flags[SWITCH_RTP_FLAG_RTCP_PASSTHRU] && (rtcp_ok || rtcp_fb)) {
switch_rtcp_numbers_t * stats = &rtp_session->stats.rtcp;
struct switch_rtcp_receiver_report *rr;
struct switch_rtcp_sender_report *sr;
struct switch_rtcp_report_block *rtcp_report_block;
struct switch_rtcp_report_block *rtcp_report_block = NULL;
switch_size_t rtcp_bytes = sizeof(struct switch_rtcp_hdr_s)+sizeof(uint32_t); /* add size of the packet header and the ssrc */
switch_rtcp_hdr_t *sdes;
uint8_t *p;
switch_size_t sdes_bytes = sizeof(struct switch_rtcp_hdr_s);
uint32_t *ssrc;
switch_rtcp_sdes_unit_t *unit;
switch_bool_t is_only_receiver = FALSE;
if (!rtcp_fb) {
rtp_session->rtcp_last_sent = now;
@ -2129,15 +2130,21 @@ static int check_rtcp_and_ice(switch_rtp_t *rtp_session)
rtp_session->rtcp_send_msg.header.version = 2;
rtp_session->rtcp_send_msg.header.p = 0;
rtp_session->rtcp_send_msg.header.count = 1;
if (!rtp_session->stats.rtcp.sent_pkt_count || send_rr) {
if ((switch_core_session_media_flow(rtp_session->session, SWITCH_MEDIA_TYPE_AUDIO) == SWITCH_MEDIA_FLOW_RECVONLY) ||
switch_core_session_media_flow(rtp_session->session, SWITCH_MEDIA_TYPE_VIDEO) == SWITCH_MEDIA_FLOW_RECVONLY) {
is_only_receiver = TRUE;
}
if (!rtp_session->stats.rtcp.sent_pkt_count || is_only_receiver || force_send_rr) {
rtp_session->rtcp_send_msg.header.type = _RTCP_PT_RR; /* Receiver report */
rr=(struct switch_rtcp_receiver_report*) rtp_session->rtcp_send_msg.body;
rr->ssrc = htonl(rtp_session->ssrc);
rtcp_report_block = &rr->report_block;
rtcp_bytes += sizeof(struct switch_rtcp_report_block);
rtcp_generate_report_block(rtp_session, rtcp_report_block);
rtp_session->rtcp_send_msg.header.count = 1; /* reception report block count */
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG1, "Sending RTCP RR");
} else {
struct switch_rtcp_sender_info *rtcp_sender_info;
rtp_session->rtcp_send_msg.header.type = _RTCP_PT_SR; /* Sender report */
@ -2145,10 +2152,18 @@ static int check_rtcp_and_ice(switch_rtp_t *rtp_session)
sr->ssrc = htonl(rtp_session->ssrc);
rtcp_sender_info = &sr->sender_info;
rtcp_generate_sender_info(rtp_session, rtcp_sender_info);
rtcp_report_block = &sr->report_block;
rtcp_bytes += sizeof(struct switch_rtcp_sender_info) + sizeof(struct switch_rtcp_report_block);
rtcp_bytes += sizeof(struct switch_rtcp_sender_info);
if (!rtcp_ok && rtcp_fb) {
/* rtcp-fb only, don't send receive report block */
rtp_session->rtcp_send_msg.header.count = 0;
} else {
rtcp_report_block = &sr->report_block;
rtcp_bytes += sizeof(struct switch_rtcp_report_block);
rtcp_generate_report_block(rtp_session, rtcp_report_block);
rtp_session->rtcp_send_msg.header.count = 1; /* reception report block count */
}
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_DEBUG1, "Sending RTCP SR");
}
rtcp_generate_report_block(rtp_session, rtcp_report_block);
rtp_session->rtcp_send_msg.header.length = htons((uint16_t)(rtcp_bytes / 4) - 1);