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session: only update next check time when reconsidering

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Don't update the next RTCP check time in all cases but only when we
reconsidered. This avoids delaying sending a full RTCP packet when we
are doing early feedback.
This commit is contained in:
Wim Taymans 2013-08-27 09:38:16 +02:00
parent 47065db0b6
commit f1106cde66
1 changed files with 26 additions and 32 deletions
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58
gst/rtpmanager/rtpsession.c
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@ -3210,6 +3210,7 @@ static gboolean
is_rtcp_time (RTPSession * sess, GstClockTime current_time, ReportData * data)
{
GstClockTime new_send_time, elapsed;
GstClockTime interval;
if (GST_CLOCK_TIME_IS_VALID (sess->next_early_rtcp_time))
data->is_early = TRUE;
@ -3232,57 +3233,50 @@ is_rtcp_time (RTPSession * sess, GstClockTime current_time, ReportData * data)
return FALSE;
}
early:
/* get elapsed time since we last reported */
elapsed = current_time - sess->last_rtcp_send_time;
new_send_time = data->interval;
/* take interval and add jitter */
interval = data->interval;
if (interval != GST_CLOCK_TIME_NONE)
interval = rtp_stats_add_rtcp_jitter (&sess->stats, interval);
/* perform forward reconsideration */
if (new_send_time != GST_CLOCK_TIME_NONE) {
new_send_time = rtp_stats_add_rtcp_jitter (&sess->stats, new_send_time);
if (interval != GST_CLOCK_TIME_NONE) {
GST_DEBUG ("forward reconsideration %" GST_TIME_FORMAT ", elapsed %"
GST_TIME_FORMAT, GST_TIME_ARGS (new_send_time),
GST_TIME_ARGS (elapsed));
new_send_time += sess->last_rtcp_send_time;
GST_TIME_FORMAT, GST_TIME_ARGS (interval), GST_TIME_ARGS (elapsed));
new_send_time = interval + sess->last_rtcp_send_time;
} else {
new_send_time = sess->last_rtcp_send_time;
}
/* check if reconsideration */
if (new_send_time == GST_CLOCK_TIME_NONE || current_time < new_send_time) {
GST_DEBUG ("reconsider RTCP for %" GST_TIME_FORMAT,
GST_TIME_ARGS (new_send_time));
/* store new check time */
sess->next_rtcp_check_time = new_send_time;
return FALSE;
}
early:
new_send_time = calculate_rtcp_interval (sess, FALSE, FALSE);
GST_DEBUG ("can send RTCP now, next interval %" GST_TIME_FORMAT,
GST_TIME_ARGS (new_send_time));
sess->next_rtcp_check_time = new_send_time;
if (new_send_time != GST_CLOCK_TIME_NONE) {
sess->next_rtcp_check_time += current_time;
if (!data->is_early) {
/* check if reconsideration */
if (new_send_time == GST_CLOCK_TIME_NONE || current_time < new_send_time) {
GST_DEBUG ("reconsider RTCP for %" GST_TIME_FORMAT,
GST_TIME_ARGS (new_send_time));
/* store new check time */
sess->next_rtcp_check_time = new_send_time;
return FALSE;
}
sess->next_rtcp_check_time = current_time + interval;
} else if (interval != GST_CLOCK_TIME_NONE) {
/* Apply the rules from RFC 4585 section 3.5.3 */
if (sess->stats.min_interval != 0 && !sess->first_rtcp) {
GstClockTime T_rr_current_interval =
g_random_double_range (0.5, 1.5) * sess->stats.min_interval;
/* This will caused the RTCP to be suppressed if no FB packets are added */
if (sess->last_rtcp_send_time + T_rr_current_interval >
sess->next_rtcp_check_time) {
if (sess->last_rtcp_send_time + T_rr_current_interval > new_send_time) {
GST_DEBUG ("RTCP packet could be suppressed min: %" GST_TIME_FORMAT
" last: %" GST_TIME_FORMAT
" + T_rr_current_interval: %" GST_TIME_FORMAT
" > sess->next_rtcp_check_time: %" GST_TIME_FORMAT,
" > new_send_time: %" GST_TIME_FORMAT,
GST_TIME_ARGS (sess->stats.min_interval),
GST_TIME_ARGS (sess->last_rtcp_send_time),
GST_TIME_ARGS (T_rr_current_interval),
GST_TIME_ARGS (sess->next_rtcp_check_time));
GST_TIME_ARGS (new_send_time));
data->may_suppress = TRUE;
}
}