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Diffstat (limited to 'gst/rtpmanager/rtpstats.h')
| -rw-r--r-- | gst/rtpmanager/rtpstats.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/gst/rtpmanager/rtpstats.h b/gst/rtpmanager/rtpstats.h new file mode 100644 index 00000000..66aa7bf7 --- /dev/null +++ b/gst/rtpmanager/rtpstats.h @@ -0,0 +1,161 @@ +/* GStreamer + * Copyright (C) <2007> Wim Taymans <wim@fluendo.com> + * + * 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 <gst/gst.h> +#include <gst/netbuffer/gstnetbuffer.h> + +/** + * RTPSenderReport: + * + * A sender report structure. + */ +typedef struct { + gboolean is_valid; + guint64 ntptime; + guint32 rtptime; + guint32 packet_count; + guint32 octet_count; +} 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; +} RTPReceiverReport; + +/** + * RTPArrivalStats: + * @time: arrival time of a packet + * @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; + 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 packetsreceived; + guint64 prevpacketsreceived; + guint64 octetsreceived; + guint64 bytesreceived; + guint16 max_seqnr; + guint32 transit; + guint32 jitter; + + /* 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) + +/** + * 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; + guint sender_sources; + guint active_sources; + guint avg_rtcp_packet_size; + guint avg_bye_packet_size; + gboolean sent_rtcp; +} RTPSessionStats; + +void rtp_stats_init_defaults (RTPSessionStats *stats); + +gdouble rtp_stats_calculate_rtcp_interval (RTPSessionStats *stats, gboolean sender); +gdouble rtp_stats_add_rtcp_jitter (RTPSessionStats *stats, gdouble interval); + +#endif /* __RTP_STATS_H__ */ |