static bool_t simple_analyzer_process_rtcp(MSQosAnalyzer *objbase, mblk_t *rtcp){
MSSimpleQosAnalyzer *obj=(MSSimpleQosAnalyzer*)objbase;
rtpstats_t *cur;
const report_block_t *rb=NULL;
bool_t got_stats=FALSE;
if (rtcp_is_SR(rtcp)){
rb=rtcp_SR_get_report_block(rtcp,0);
}else if (rtcp_is_RR(rtcp)){
rb=rtcp_RR_get_report_block(rtcp,0);
}
if (rb && report_block_get_ssrc(rb)==rtp_session_get_send_ssrc(obj->session)){
obj->curindex++;
cur=&obj->stats[obj->curindex % STATS_HISTORY];
if (obj->clockrate==0){
PayloadType *pt=rtp_profile_get_payload(rtp_session_get_send_profile(obj->session),rtp_session_get_send_payload_type(obj->session));
if (pt!=NULL) obj->clockrate=pt->clock_rate;
else return FALSE;
}
if (ortp_loss_rate_estimator_process_report_block(objbase->lre,&obj->session->rtp,rb)){
cur->lost_percentage=ortp_loss_rate_estimator_get_value(objbase->lre);
cur->int_jitter=1000.0*(float)report_block_get_interarrival_jitter(rb)/(float)obj->clockrate;
cur->rt_prop=rtp_session_get_round_trip_propagation(obj->session);
ms_message("MSSimpleQosAnalyzer: lost_percentage=%f, int_jitter=%f ms, rt_prop=%f sec",
cur->lost_percentage,cur->int_jitter,cur->rt_prop);
got_stats=TRUE;
}
}
return got_stats;
}
static void event_queue_cb(MediaStream *ms, void *user_pointer) {
LossRateEstimatorCtx *ctx = (LossRateEstimatorCtx*)user_pointer;
if (ctx->q != NULL) {
OrtpEvent *ev = NULL;
while ((ev = ortp_ev_queue_get(ctx->q)) != NULL) {
OrtpEventType evt = ortp_event_get_type(ev);
OrtpEventData *evd = ortp_event_get_data(ev);
if (evt == ORTP_EVENT_RTCP_PACKET_RECEIVED) {
do {
const report_block_t *rb=NULL;
if (rtcp_is_SR(evd->packet)){
rb=rtcp_SR_get_report_block(evd->packet,0);
}else if (rtcp_is_RR(evd->packet)){
rb=rtcp_RR_get_report_block(evd->packet,0);
}
if (rb&&ortp_loss_rate_estimator_process_report_block(ctx->estimator,&ms->sessions.rtp_session->rtp,rb)){
float diff = fabs(ortp_loss_rate_estimator_get_value(ctx->estimator) - ctx->loss_rate);
CU_ASSERT_IN_RANGE(diff, 0, 10);
}
} while (rtcp_next_packet(evd->packet));
}
ortp_event_destroy(ev);
}
}
}
static void handle_queue_events(stream_manager_t * stream_mgr) {
OrtpEvent *ev;
while (NULL != (ev=ortp_ev_queue_get(stream_mgr->evq))){
OrtpEventType evt=ortp_event_get_type(ev);
OrtpEventData *evd=ortp_event_get_data(ev);
if (evt == ORTP_EVENT_RTCP_PACKET_RECEIVED) {
const report_block_t *rb=NULL;
if (rtcp_is_SR(evd->packet)){
rb=rtcp_SR_get_report_block(evd->packet,0);
}else if (rtcp_is_RR(evd->packet)){
rb=rtcp_RR_get_report_block(evd->packet,0);
}
if (rb){
stream_mgr->rtcp_count++;
if (stream_mgr->type==VideoStreamType&&stream_mgr->video_stream->ms.use_rc){
const MSQosAnalyzer *analyzer=ms_bitrate_controller_get_qos_analyzer(stream_mgr->video_stream->ms.rc);
if (analyzer->type==Stateful){
const MSStatefulQosAnalyzer *stateful_analyzer=((const MSStatefulQosAnalyzer*)analyzer);
stream_mgr->adaptive_stats.network_state=stateful_analyzer->network_state;
stream_mgr->adaptive_stats.loss_estim =100*stateful_analyzer->network_loss_rate;
stream_mgr->adaptive_stats.congestion_bw_estim =stateful_analyzer->congestion_bandwidth;
}
}
}
}
ortp_event_destroy(ev);
}
}
static void rtcp_eventhandler_impl(LinhoneQos *qos, mblk_t *report)
{
uint32_t ssrc = 0;
LinphoneRtcpAnaly *analyze = NULL;
MSList *elem;
ms_message("linphoneqos begin to handle rtcp report");
if (!qos || !report) {
ms_message("linphoneqos report is null");
return;
}
report_block_t *block = NULL;
if (rtcp_is_SR(report)) {
ms_message("linphoneqos begin to handle rtcp sr report");
block = rtcp_SR_get_report_block(report, 0);
} else if (rtcp_is_RR(report)) {
ms_message("linphoneqos begin to handle rtcp rr report");
block = rtcp_RR_get_report_block(report, 0);
} else {
ms_message("linphoneqos begin to handle rtcp xr report");
return;
}
if (!block)
return;
ssrc = report_block_get_ssrc(block);
elem = ms_list_find_custom(qos->list, (MSCompareFunc)qos_find_rtcpanly_from_list, &ssrc);
if (!elem) {
ms_message("linphoneqos create to rtcpanalyze %u", ssrc);
analyze = ms_new0(LinphoneRtcpAnaly, 1);
linphone_initial_analy(qos, analyze);
analyze->ssrc = ssrc;
qos->list = ms_list_append(qos->list, analyze);
} else {
analyze = (LinphoneRtcpAnaly *)elem->data;
}
if (!analyze)
{
ms_message("linphoneqos failed to create rtcpanalyze %u", ssrc);
return;
}
analyze->rtcp_eh(analyze, block); // analyze the rtcp report first
analyze->net_eh(analyze); // analyze the net
qos->adjust_eh(qos, analyze->action, analyze->adjust_level); //adjust the net
}
static void parse_rtcp(mblk_t *m){
do{
if (rtcp_is_RR(m)){
ms_message("Receiving RTCP RR");
}else if (rtcp_is_SR(m)){
ms_message("Receiving RTCP SR");
}else if (rtcp_is_SDES(m)){
ms_message("Receiving RTCP SDES");
rtcp_sdes_parse(m,display_items,NULL);
}else {
ms_message("Receiving unhandled RTCP message");
}
}while(rtcp_next_packet(m));
}
static void parse_rtcp(mblk_t *m) {
const report_block_t *rb;
do {
if (rtcp_is_RR(m)) {
ms_message("Receiving RTCP RR");
} else if (rtcp_is_SR(m)) {
ms_message("Receiving RTCP SR");
rb=rtcp_SR_get_report_block(m,0);
if (rb) {
ms_message("interarrival jitter=%u",
report_block_get_interarrival_jitter(rb));
}
} else if (rtcp_is_SDES(m)) {
ms_message("Receiving RTCP SDES");
rtcp_sdes_parse(m,display_items,NULL);
} else {
ms_message("Receiving unhandled RTCP message");
}
} while(rtcp_next_packet(m));
}
static void audio_stream_process_rtcp(AudioStream *stream, mblk_t *m){
do{
const report_block_t *rb=NULL;
if (rtcp_is_SR(m)){
rb=rtcp_SR_get_report_block(m,0);
}else if (rtcp_is_RR(m)){
rb=rtcp_RR_get_report_block(m,0);
}
if (rb){
unsigned int ij;
float rt=rtp_session_get_round_trip_propagation(stream->ms.session);
float flost;
ij=report_block_get_interarrival_jitter(rb);
flost=(float)(100.0*report_block_get_fraction_lost(rb)/256.0);
ms_message("audio_stream_iterate(): remote statistics available\n\tremote's interarrival jitter=%u\n"
"\tremote's lost packets percentage since last report=%f\n\tround trip time=%f seconds",ij,flost,rt);
if (stream->ms.rc) ms_bitrate_controller_process_rtcp(stream->ms.rc,m);
if (stream->ms.qi) ms_quality_indicator_update_from_feedback(stream->ms.qi,m);
}
}while(rtcp_next_packet(m));
}
static void event_queue_cb(MediaStream *ms, void *user_pointer) {
video_stream_tester_stats_t *st = (video_stream_tester_stats_t *)user_pointer;
OrtpEvent *ev = NULL;
if (st->q != NULL) {
while ((ev = ortp_ev_queue_get(st->q)) != NULL) {
OrtpEventType evt = ortp_event_get_type(ev);
OrtpEventData *d = ortp_event_get_data(ev);
if (evt == ORTP_EVENT_RTCP_PACKET_EMITTED) {
do {
if (rtcp_is_RR(d->packet)) {
st->number_of_RR++;
} else if (rtcp_is_SR(d->packet)) {
st->number_of_SR++;
} else if (rtcp_is_SDES(d->packet)) {
st->number_of_SDES++;
} else if (rtcp_is_PSFB(d->packet)) {
switch (rtcp_PSFB_get_type(d->packet)) {
case RTCP_PSFB_PLI:
st->number_of_PLI++;
break;
case RTCP_PSFB_SLI:
st->number_of_SLI++;
break;
case RTCP_PSFB_RPSI:
st->number_of_RPSI++;
break;
default:
break;
}
}
} while (rtcp_next_packet(d->packet));
}
ortp_event_destroy(ev);
}
}
}
static void media_stream_process_rtcp(MediaStream *stream, mblk_t *m, time_t curtime){
stream->last_packet_time=curtime;
ms_message("%s stream [%p]: receiving RTCP %s%s",media_stream_type_str(stream),stream,(rtcp_is_SR(m)?"SR":""),(rtcp_is_RR(m)?"RR":""));
do{
if (stream->rc_enable && stream->rc) ms_bitrate_controller_process_rtcp(stream->rc,m);
if (stream->qi) ms_quality_indicator_update_from_feedback(stream->qi,m);
stream->process_rtcp(stream,m);
}while(rtcp_next_packet(m));
}
static bool_t stateful_analyzer_process_rtcp(MSQosAnalyzer *objbase, mblk_t *rtcp){
MSStatefulQosAnalyzer *obj=(MSStatefulQosAnalyzer*)objbase;
const report_block_t *rb=NULL;
if (rtcp_is_SR(rtcp)){
rb=rtcp_SR_get_report_block(rtcp,0);
}else if (rtcp_is_RR(rtcp)){
rb=rtcp_RR_get_report_block(rtcp,0);
}
if (rb && report_block_get_ssrc(rb)==rtp_session_get_send_ssrc(obj->session)){
if (ortp_loss_rate_estimator_process_report_block(objbase->lre,&obj->session->rtp,rb)){
int i;
float loss_rate = ortp_loss_rate_estimator_get_value(objbase->lre);
float up_bw = stateful_qos_analyzer_upload_bandwidth(obj,report_block_get_high_ext_seq(rb));
obj->curindex++;
/*flush bandwidth estimation measures for seq number lower than remote report block received*/
for (i=0;i<BW_HISTORY;i++){
if (obj->upload_bandwidth[i].seq_number<report_block_get_high_ext_seq(rb)){
obj->upload_bandwidth[i].seq_number=0;
obj->upload_bandwidth[i].up_bandwidth=0.f;
}
}
/* Always skip the first report, since values might be erroneous due
to initialization of multiples objects (encoder/decoder/stats computing..)
Instead assume loss rate is a good estimation of network capacity */
if (obj->curindex==1) {
obj->network_loss_rate=loss_rate;
return TRUE;
}
obj->latest=ms_new0(rtcpstatspoint_t, 1);
obj->latest->timestamp=ms_time(0);
obj->latest->bandwidth=up_bw;
obj->latest->loss_percent=loss_rate;
obj->latest->rtt=rtp_session_get_round_trip_propagation(obj->session);
obj->rtcpstatspoint=ms_list_insert_sorted(obj->rtcpstatspoint,
obj->latest, (MSCompareFunc)sort_by_bandwidth);
/*if the measure was 0% loss, reset to 0% every measures below it*/
if (obj->latest->loss_percent < 1e-5){
MSList *it=obj->rtcpstatspoint;
MSList *latest_pos=ms_list_find(obj->rtcpstatspoint,obj->latest);
while (it!=latest_pos->next){
((rtcpstatspoint_t *)it->data)->loss_percent=0.f;
it = it->next;
}
}
ms_message("MSStatefulQosAnalyzer[%p]: one more %d: %f %f",
obj, obj->curindex-1, obj->latest->bandwidth, obj->latest->loss_percent);
if (ms_list_size(obj->rtcpstatspoint) > ESTIM_HISTORY){
int prev_size = ms_list_size(obj->rtcpstatspoint);
/*clean everything which occurred 60 sec or more ago*/
time_t clear_time = ms_time(0) - 60;
obj->rtcpstatspoint = ms_list_remove_custom(obj->rtcpstatspoint,
(MSCompareFunc)earlier_than, &clear_time);
ms_message("MSStatefulQosAnalyzer[%p]: reached list maximum capacity "
"(count=%d) --> Cleaned list (count=%d)",
obj, prev_size, ms_list_size(obj->rtcpstatspoint));
}
return TRUE;
}
}
return FALSE;
}
static bool_t stateful_analyzer_process_rtcp(MSQosAnalyzer *objbase, mblk_t *rtcp){
MSStatefulQosAnalyzer *obj=(MSStatefulQosAnalyzer*)objbase;
rtpstats_t *cur;
const report_block_t *rb=NULL;
if (rtcp_is_SR(rtcp)){
rb=rtcp_SR_get_report_block(rtcp,0);
}else if (rtcp_is_RR(rtcp)){
rb=rtcp_RR_get_report_block(rtcp,0);
}
if (rb && report_block_get_ssrc(rb)==rtp_session_get_send_ssrc(obj->session)){
double up_bw = stateful_qos_analyzer_upload_bandwidth(obj);
int total_emitted=stateful_qos_analyzer_get_total_emitted(obj, rb);
obj->curindex++;
cur=&obj->stats[obj->curindex % STATS_HISTORY];
if (obj->clockrate==0){
PayloadType *pt=rtp_profile_get_payload(rtp_session_get_send_profile(obj->session),rtp_session_get_send_payload_type(obj->session));
if (pt!=NULL) obj->clockrate=pt->clock_rate;
else return FALSE;
}
cur->lost_percentage=100.0*(float)report_block_get_fraction_lost(rb)/256.0;
cur->int_jitter=1000.0*(float)report_block_get_interarrival_jitter(rb)/(float)obj->clockrate;
cur->rt_prop=rtp_session_get_round_trip_propagation(obj->session);
ms_message("MSSimpleQosAnalyzer: lost_percentage=%f, int_jitter=%f ms, rt_prop=%f sec",cur->lost_percentage,cur->int_jitter,cur->rt_prop);
if (obj->curindex>2){
double loss_rate = cur->lost_percentage/100.0;
int cum_loss=report_block_get_cum_packet_loss(rb);
int cum_loss_curr=cum_loss - obj->cum_loss_prev;
int uniq_emitted=report_block_get_high_ext_seq(rb) - obj->previous_ext_high_seq_num_rec;
if (obj->previous_ext_high_seq_num_rec > 0){
loss_rate=(1. - (uniq_emitted - cum_loss_curr) * 1.f / total_emitted);
ms_debug("MSQosStatefulAnalyzer[%p]: RECEIVE estimated loss rate=%f vs 'real'=%f",
obj, loss_rate, report_block_get_fraction_lost(rb)/256.);
}
obj->latest=ms_new0(rtcpstatspoint_t, 1);
obj->latest->timestamp=ms_time(0);
obj->latest->bandwidth=up_bw;
obj->latest->loss_percent=MAX(0,loss_rate);
obj->latest->rtt=cur->rt_prop;
obj->rtcpstatspoint=ms_list_insert_sorted(obj->rtcpstatspoint, obj->latest, (MSCompareFunc)sort_points);
if (obj->latest->loss_percent < 1e-5){
MSList *it=obj->rtcpstatspoint;
MSList *latest_pos=ms_list_find(obj->rtcpstatspoint,obj->latest);
while (it!=latest_pos->next){
((rtcpstatspoint_t *)it->data)->loss_percent=0.f;
it = it->next;
}
}
ms_debug("MSQosStatefulAnalyzer[%p]: one more %d: %f %f",
obj, obj->curindex-2, obj->latest->bandwidth, obj->latest->loss_percent);
if (ms_list_size(obj->rtcpstatspoint) > ESTIM_HISTORY){
#ifdef DEBUG
int prev_size = ms_list_size(obj->rtcpstatspoint);
#endif
/*clean everything which occurred 60 sec or more ago*/
time_t clear_time = ms_time(0) - 60;
obj->rtcpstatspoint = ms_list_remove_custom(obj->rtcpstatspoint, (MSCompareFunc)earlier_than, &clear_time);
ms_debug("MSQosStatefulAnalyzer[%p]: Reached list maximum capacity (count=%d) --> Cleaned list (count=%d)",
obj, prev_size, ms_list_size(obj->rtcpstatspoint));
}
}
obj->cum_loss_prev=report_block_get_cum_packet_loss(rb);
obj->previous_ext_high_seq_num_rec=report_block_get_high_ext_seq(rb);
}
return rb!=NULL;
}