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 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; }