mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-28 03:00:35 +00:00
Code Issues 1 Projects Releases Wiki Activity

rtpsession: Don't relay more than one PLI request per RTT

Browse source 
Drop PLI requests if one was relay in the last RTT, the other side may
just not have received the keyframe yet.
This commit is contained in:
Olivier Crête 2010-10-19 22:21:54 +02:00 committed by Wim Taymans
parent a61bb9e94b
commit a630c68fc3
2 changed files with 45 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

49
gst/rtpmanager/rtpsession.c
View file

@ -2007,10 +2007,50 @@ rtp_session_process_app (RTPSession * sess, GstRTCPPacket * packet,
GST_DEBUG ("received APP");
}
static void
rtp_session_process_pli (RTPSession * sess, guint32 sender_ssrc,
guint32 media_ssrc, GstClockTime current_time)
{
RTPSource *src;
guint32 round_trip = 0;
if (!sess->callbacks.request_key_unit)
return;
src = g_hash_table_lookup (sess->ssrcs[sess->mask_idx],
GINT_TO_POINTER (sender_ssrc));
if (!src)
return;
if (sess->last_keyframe_request != GST_CLOCK_TIME_NONE &&
rtp_source_get_last_rb (src, NULL, NULL, NULL, NULL, NULL, NULL,
&round_trip)) {
GstClockTime round_trip_in_ns = gst_util_uint64_scale (round_trip,
GST_SECOND, 65536);
if (sess->last_keyframe_request != GST_CLOCK_TIME_NONE &&
current_time - sess->last_keyframe_request < round_trip_in_ns) {
GST_DEBUG ("Ignoring PLI because one was send without one RTT (%"
GST_TIME_FORMAT " < %" GST_TIME_FORMAT ")",
GST_TIME_ARGS (current_time - sess->last_keyframe_request),
GST_TIME_ARGS (round_trip_in_ns));;
return;
}
}
sess->last_keyframe_request = current_time;
GST_LOG ("received PLI from %X %p(%p)", sender_ssrc,
sess->callbacks.process_rtp, sess->callbacks.request_key_unit);
sess->callbacks.request_key_unit (sess, FALSE,
sess->request_key_unit_user_data);
}
static void
rtp_session_process_feedback (RTPSession * sess, GstRTCPPacket * packet,
RTPArrivalStats * arrival)
RTPArrivalStats * arrival, GstClockTime current_time)
{
GstRTCPType type = gst_rtcp_packet_get_type (packet);
GstRTCPFBType fbtype = gst_rtcp_packet_fb_get_type (packet);
@ -2052,9 +2092,8 @@ rtp_session_process_feedback (RTPSession * sess, GstRTCPPacket * packet,
case GST_RTCP_TYPE_PSFB:
switch (fbtype) {
case GST_RTCP_PSFB_TYPE_PLI:
if (sess->callbacks.request_key_unit)
sess->callbacks.request_key_unit (sess, FALSE,
sess->request_key_unit_user_data);
rtp_session_process_pli (sess, sender_ssrc, media_ssrc,
current_time);
break;
default:
break;
@ -2136,7 +2175,7 @@ rtp_session_process_rtcp (RTPSession * sess, GstBuffer * buffer,
break;
case GST_RTCP_TYPE_RTPFB:
case GST_RTCP_TYPE_PSFB:
rtp_session_process_feedback (sess, &packet, &arrival);
rtp_session_process_feedback (sess, &packet, &arrival, current_time);
break;
default:
GST_WARNING ("got unknown RTCP packet");

1
gst/rtpmanager/rtpsession.h
View file

@ -221,6 +221,7 @@ struct _RTPSession {
GstClockTime rtcp_feedback_retention_window;
GArray *rtcp_pli_requests;
GstClockTime last_keyframe_request;
};
/**