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rtpjitterbuffer: refactor lost event sending

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Also make sure we only increment the expected seqnum and last
output timestamp.
This commit is contained in:
Wim Taymans 2013-09-18 11:56:38 +02:00
parent f49981a597
commit 26402e1c21
1 changed files with 54 additions and 57 deletions
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111
gst/rtpmanager/gstrtpjitterbuffer.c
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@ -1673,6 +1673,54 @@ calculate_packet_spacing (GstRtpJitterBuffer * jitterbuffer, guint32 rtptime,
}
}
static GstFlowReturn
send_lost_event (GstRtpJitterBuffer * jitterbuffer, guint seqnum,
guint lost_packets, GstClockTime timestamp, GstClockTime duration,
gboolean late)
{
GstRtpJitterBufferPrivate *priv = jitterbuffer->priv;
/* we had a gap and thus we lost some packets. Create an event for this. */
if (lost_packets > 1)
GST_DEBUG_OBJECT (jitterbuffer, "Packets #%d -> #%d lost", seqnum,
seqnum + lost_packets - 1);
else
GST_DEBUG_OBJECT (jitterbuffer, "Packet #%d lost", seqnum);
priv->num_late += lost_packets;
priv->discont = TRUE;
/* update our expected next packet but make sure the seqnum increases */
if (seqnum + lost_packets > priv->next_seqnum) {
priv->next_seqnum = (seqnum + lost_packets) & 0xffff;
priv->last_popped_seqnum = seqnum;
priv->last_out_time = timestamp;
}
if (priv->do_lost) {
GstEvent *event;
/* create paket lost event */
event = gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM,
gst_structure_new ("GstRTPPacketLost",
"seqnum", G_TYPE_UINT, (guint) seqnum,
"timestamp", G_TYPE_UINT64, timestamp,
"duration", G_TYPE_UINT64, duration,
"late", G_TYPE_BOOLEAN, late, NULL));
JBUF_UNLOCK (priv);
gst_pad_push_event (priv->srcpad, event);
JBUF_LOCK_CHECK (priv, flushing);
}
return GST_FLOW_OK;
/* ERRORS */
flushing:
{
GST_DEBUG_OBJECT (jitterbuffer, "we are flushing");
return GST_FLOW_FLUSHING;
}
}
static void
calculate_expected (GstRtpJitterBuffer * jitterbuffer, guint32 expected,
guint16 seqnum, GstClockTime dts, gint gap)
@ -2264,70 +2312,19 @@ do_lost_timeout (GstRtpJitterBuffer * jitterbuffer, TimerData * timer,
GstClockTime now)
{
GstRtpJitterBufferPrivate *priv = jitterbuffer->priv;
GstClockTime duration = GST_CLOCK_TIME_NONE;
guint32 lost_packets = 1;
gboolean lost_packets_late = FALSE;
GstClockTime duration, timestamp;
guint seqnum;
#if 0
if (clock_jitter > 0
&& clock_jitter > (priv->latency_ns + priv->peer_latency)) {
GstClockTimeDiff total_duration;
GstClockTime out_time_diff;
seqnum = timer->seqnum;
timestamp = apply_offset (jitterbuffer, timer->timeout);
duration = GST_CLOCK_TIME_NONE;
out_time_diff =
apply_offset (jitterbuffer, timer->timeout) - timer->timeout;
total_duration = MIN (out_time_diff, clock_jitter);
if (duration > 0)
lost_packets = total_duration / duration;
else
lost_packets = gap;
total_duration = lost_packets * duration;
GST_DEBUG_OBJECT (jitterbuffer,
"Current sync_time has expired a long time ago (+%" GST_TIME_FORMAT
") Cover up %d lost packets with duration %" GST_TIME_FORMAT,
GST_TIME_ARGS (clock_jitter),
lost_packets, GST_TIME_ARGS (total_duration));
duration = total_duration;
lost_packets_late = TRUE;
}
#endif
/* we had a gap and thus we lost some packets. Create an event for this. */
if (lost_packets > 1)
GST_DEBUG_OBJECT (jitterbuffer, "Packets #%d -> #%d lost", timer->seqnum,
timer->seqnum + lost_packets - 1);
else
GST_DEBUG_OBJECT (jitterbuffer, "Packet #%d lost", timer->seqnum);
priv->num_late += lost_packets;
priv->discont = TRUE;
/* update our expected next packet */
priv->last_popped_seqnum = timer->seqnum;
priv->last_out_time = apply_offset (jitterbuffer, timer->timeout);
if (timer->seqnum + lost_packets > priv->next_seqnum)
priv->next_seqnum = (timer->seqnum + lost_packets) & 0xffff;
/* remove timer now */
remove_timer (jitterbuffer, timer);
JBUF_SIGNAL_EVENT (priv);
if (priv->do_lost) {
GstEvent *event;
send_lost_event (jitterbuffer, seqnum, 1, timestamp, duration, FALSE);
/* create paket lost event */
event = gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM,
gst_structure_new ("GstRTPPacketLost",
"seqnum", G_TYPE_UINT, (guint) priv->last_popped_seqnum,
"timestamp", G_TYPE_UINT64, priv->last_out_time,
"duration", G_TYPE_UINT64, duration,
"late", G_TYPE_BOOLEAN, lost_packets_late, NULL));
JBUF_UNLOCK (priv);
gst_pad_push_event (priv->srcpad, event);
JBUF_LOCK (priv);
}
return TRUE;
}