/* GStreamer * Copyright (C) <2007> Wim Taymans * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifndef __RTP_STATS_H__ #define __RTP_STATS_H__ #include #include /** * RTPSenderReport: * * A sender report structure. */ typedef struct { gboolean is_valid; guint64 ntptime; guint32 rtptime; guint32 packet_count; guint32 octet_count; GstClockTime time; } RTPSenderReport; /** * RTPReceiverReport: * * A receiver report structure. */ typedef struct { gboolean is_valid; guint32 ssrc; /* who the report is from */ guint8 fractionlost; guint32 packetslost; guint32 exthighestseq; guint32 jitter; guint32 lsr; guint32 dlsr; guint32 round_trip; } RTPReceiverReport; /** * RTPArrivalStats: * @time: arrival time of a packet according to the system clock * @running_time: arrival time of a packet as buffer running_time * @ntpnstime: arrival time of a packet as NTP time in nanoseconds * @have_address: if the @address field contains a valid address * @address: address of the sender of the packet * @bytes: bytes of the packet including lowlevel overhead * @payload_len: bytes of the RTP payload * * Structure holding information about the arrival stats of a packet. */ typedef struct { GstClockTime time; GstClockTime running_time; guint64 ntpnstime; gboolean have_address; GstNetAddress address; guint bytes; guint payload_len; } RTPArrivalStats; /** * RTPSourceStats: * @packetsreceived: number of received packets in total * @prevpacketsreceived: number of packets received in previous reporting * interval * @octetsreceived: number of payload bytes received * @bytesreceived: number of total bytes received including headers and lower * protocol level overhead * @max_seqnr: highest sequence number received * @transit: previous transit time used for calculating @jitter * @jitter: current jitter * @prev_rtptime: previous time when an RTP packet was received * @prev_rtcptime: previous time when an RTCP packet was received * @last_rtptime: time when last RTP packet received * @last_rtcptime: time when last RTCP packet received * @curr_rr: index of current @rr block * @rr: previous and current receiver report block * @curr_sr: index of current @sr block * @sr: previous and current sender report block * * Stats about a source. */ typedef struct { guint64 packets_received; guint64 octets_received; guint64 bytes_received; guint32 prev_expected; guint32 prev_received; guint16 max_seq; guint64 cycles; guint32 base_seq; guint32 bad_seq; guint32 transit; guint32 jitter; guint64 packets_sent; guint64 octets_sent; /* when we received stuff */ GstClockTime prev_rtptime; GstClockTime prev_rtcptime; GstClockTime last_rtptime; GstClockTime last_rtcptime; /* sender and receiver reports */ gint curr_rr; RTPReceiverReport rr[2]; gint curr_sr; RTPSenderReport sr[2]; } RTPSourceStats; #define RTP_STATS_BANDWIDTH 64000.0 #define RTP_STATS_RTCP_BANDWIDTH 3000.0 /* * Minimum average time between RTCP packets from this site (in * seconds). This time prevents the reports from `clumping' when * sessions are small and the law of large numbers isn't helping * to smooth out the traffic. It also keeps the report interval * from becoming ridiculously small during transient outages like * a network partition. */ #define RTP_STATS_MIN_INTERVAL 5.0 /* * Fraction of the RTCP bandwidth to be shared among active * senders. (This fraction was chosen so that in a typical * session with one or two active senders, the computed report * time would be roughly equal to the minimum report time so that * we don't unnecessarily slow down receiver reports.) The * receiver fraction must be 1 - the sender fraction. */ #define RTP_STATS_SENDER_FRACTION (0.25) #define RTP_STATS_RECEIVER_FRACTION (1.0 - RTP_STATS_SENDER_FRACTION) /* * When receiving a BYE from a source, remove the source from the database * after this timeout. */ #define RTP_STATS_BYE_TIMEOUT (2 * GST_SECOND) /* * The maximum number of missing packets we tollerate. These are packets with a * sequence number bigger than the last seen packet. */ #define RTP_MAX_DROPOUT 3000 /* * The maximum number of misordered packets we tollerate. These are packets with * a sequence number smaller than the last seen packet. */ #define RTP_MAX_MISORDER 100 /** * RTPSessionStats: * * Stats kept for a session and used to produce RTCP packet timeouts. */ typedef struct { gdouble bandwidth; gdouble sender_fraction; gdouble receiver_fraction; gdouble rtcp_bandwidth; gdouble min_interval; GstClockTime bye_timeout; guint sender_sources; guint active_sources; guint avg_rtcp_packet_size; guint bye_members; } RTPSessionStats; void rtp_stats_init_defaults (RTPSessionStats *stats); GstClockTime rtp_stats_calculate_rtcp_interval (RTPSessionStats *stats, gboolean sender, gboolean first); GstClockTime rtp_stats_add_rtcp_jitter (RTPSessionStats *stats, GstClockTime interval); GstClockTime rtp_stats_calculate_bye_interval (RTPSessionStats *stats); #endif /* __RTP_STATS_H__ */