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jitterbuffer: improve timeout management

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If we change the seqnum of an existing timer and we were waiting for
that timer, unschedule it. If we change the timeout of an existing timer and we
were waiting on it, only unschedule when the new time is smaller.
This commit is contained in:
Wim Taymans 2013-08-01 15:40:52 +02:00
parent 77e5d320ab
commit f3c658cbe6
1 changed files with 18 additions and 2 deletions
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20
gst/rtpmanager/gstrtpjitterbuffer.c
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@ -184,6 +184,7 @@ struct _GstRtpJitterBufferPrivate
GstSegment segment;
GstClockID clock_id;
GstClockTime timer_timeout;
guint16 timer_seqnum;
gboolean unscheduled;
/* the latency of the upstream peer, we have to take this into account when
* synchronizing the buffers. */
@ -1345,9 +1346,18 @@ static void
reschedule_timer (GstRtpJitterBuffer * jitterbuffer, TimerData * timer,
guint16 seqnum, GstClockTime timeout)
{
if (timer->seqnum == seqnum && timer->timeout == timeout)
GstRtpJitterBufferPrivate *priv = jitterbuffer->priv;
gboolean seqchange, timechange;
guint16 oldseq;
seqchange = timer->seqnum != seqnum;
timechange = timer->timeout != timeout;
if (!seqchange && timechange)
return;
oldseq = timer->seqnum;
GST_DEBUG_OBJECT (jitterbuffer,
"replace timer for seqnum %d->%d to %" GST_TIME_FORMAT,
timer->seqnum, seqnum, GST_TIME_ARGS (timeout));
@ -1355,7 +1365,12 @@ reschedule_timer (GstRtpJitterBuffer * jitterbuffer, TimerData * timer,
timer->timeout = timeout;
timer->seqnum = seqnum;
recalculate_timer (jitterbuffer, timer);
if (priv->clock_id) {
if (seqchange && priv->timer_seqnum == oldseq)
unschedule_current_timer (jitterbuffer);
else if (timechange)
recalculate_timer (jitterbuffer, timer);
}
}
static TimerData *
@ -2122,6 +2137,7 @@ wait_next_timeout (GstRtpJitterBuffer * jitterbuffer)
id = priv->clock_id = gst_clock_new_single_shot_id (clock, sync_time);
priv->unscheduled = FALSE;
priv->timer_timeout = timer_timeout;
priv->timer_seqnum = timer->seqnum;
timer_idx = timer->idx;
GST_OBJECT_UNLOCK (jitterbuffer);