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jitterbuffer: unschedule old expected packets

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When we receive a new packet, unschedule old outstanding packets when their
seqnum is too far away.
This commit is contained in:
Wim Taymans 2013-08-01 23:26:06 +02:00
parent 70695466ed
commit 0e41414926
1 changed files with 30 additions and 3 deletions
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33
gst/rtpmanager/gstrtpjitterbuffer.c
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@ -1422,6 +1422,9 @@ remove_all_timers (GstRtpJitterBuffer * jitterbuffer)
}
/* we just received a packet with seqnum and dts.
*
* First check for old seqnum that we are still expecting. If the gap with the
* current timestamp is too big, unschedule the timeouts.
*
* If we have a valid packet spacing estimate we can set a timer for when we
* should receive the next packet.
@ -1433,10 +1436,34 @@ update_timers (GstRtpJitterBuffer * jitterbuffer, guint16 seqnum,
GstClockTime dts)
{
GstRtpJitterBufferPrivate *priv = jitterbuffer->priv;
TimerData *timer;
TimerData *timer = NULL;
gint i, len;
/* go through all timers and unschedule the ones with a large gap, also find
* the timer for the seqnum */
len = priv->timers->len;
for (i = 0; i < len; i++) {
TimerData *test = &g_array_index (priv->timers, TimerData, i);
gint gap;
if (test->type != TIMER_TYPE_EXPECTED)
continue;
gap = gst_rtp_buffer_compare_seqnum (test->seqnum, seqnum);
GST_DEBUG_OBJECT (jitterbuffer, "%d, #%d<->#%d gap %d", i,
test->seqnum, seqnum, gap);
if (gap == 0) {
/* the timer for the current seqnum */
timer = test;
} else if (gap > 5) {
/* max gap, we exceeded the max reorder distance and we don't expect the
* missing packet to be this reordered */
reschedule_timer (jitterbuffer, test, test->seqnum, -1);
}
}
/* find the timer for the current seqnum. */
timer = find_timer (jitterbuffer, TIMER_TYPE_EXPECTED, seqnum);
if (priv->packet_spacing > 0) {
GstClockTime expected;