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rtpjitterbuffer: only signal event when head changed

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After adding a buffer, only signal the pushing thread when the head
buffer changed or else we cause a useless wakeup.
This commit is contained in:
Wim Taymans 2014-04-29 16:12:29 +02:00
parent 18b69419fd
commit 3cd0e8ae88
1 changed files with 26 additions and 19 deletions
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45
gst/rtpmanager/gstrtpjitterbuffer.c
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@ -1354,6 +1354,7 @@ queue_event (GstRtpJitterBuffer * jitterbuffer, GstEvent * event)
{
GstRtpJitterBufferPrivate *priv = jitterbuffer->priv;
RTPJitterBufferItem *item;
gboolean head;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
@ -1387,8 +1388,9 @@ queue_event (GstRtpJitterBuffer * jitterbuffer, GstEvent * event)
GST_DEBUG_OBJECT (jitterbuffer, "adding event");
item = alloc_item (event, ITEM_TYPE_EVENT, -1, -1, -1, 0, -1);
rtp_jitter_buffer_insert (priv->jbuf, item, NULL, NULL);
JBUF_SIGNAL_EVENT (priv);
rtp_jitter_buffer_insert (priv->jbuf, item, &head, NULL);
if (head)
JBUF_SIGNAL_EVENT (priv);
return TRUE;
@ -2076,7 +2078,7 @@ gst_rtp_jitter_buffer_chain (GstPad * pad, GstObject * parent,
GstFlowReturn ret = GST_FLOW_OK;
GstClockTime dts, pts;
guint64 latency_ts;
gboolean tail;
gboolean head;
gint percent = -1;
guint8 pt;
GstRTPBuffer rtp = GST_RTP_BUFFER_INIT;
@ -2266,7 +2268,7 @@ gst_rtp_jitter_buffer_chain (GstPad * pad, GstObject * parent,
* FALSE if a packet with the same seqnum was already in the queue, meaning we
* have a duplicate. */
if (G_UNLIKELY (!rtp_jitter_buffer_insert (priv->jbuf, item,
&tail, &percent)))
&head, &percent)))
goto duplicate;
/* update timers */
@ -2276,19 +2278,21 @@ gst_rtp_jitter_buffer_chain (GstPad * pad, GstObject * parent,
if (priv->last_sr)
do_handle_sync (jitterbuffer);
/* signal addition of new buffer when the _loop is waiting. */
if (priv->active)
JBUF_SIGNAL_EVENT (priv);
if (head) {
/* signal addition of new buffer when the _loop is waiting. */
if (priv->active)
JBUF_SIGNAL_EVENT (priv);
/* let's unschedule and unblock any waiting buffers. We only want to do this
* when the tail buffer changed */
if (G_UNLIKELY (priv->clock_id && tail)) {
GST_DEBUG_OBJECT (jitterbuffer, "Unscheduling waiting new buffer");
unschedule_current_timer (jitterbuffer);
/* let's unschedule and unblock any waiting buffers. We only want to do this
* when the head buffer changed */
if (G_UNLIKELY (priv->clock_id)) {
GST_DEBUG_OBJECT (jitterbuffer, "Unscheduling waiting new buffer");
unschedule_current_timer (jitterbuffer);
}
}
GST_DEBUG_OBJECT (jitterbuffer, "Pushed packet #%d, now %d packets, tail: %d",
seqnum, rtp_jitter_buffer_num_packets (priv->jbuf), tail);
GST_DEBUG_OBJECT (jitterbuffer, "Pushed packet #%d, now %d packets, head: %d",
seqnum, rtp_jitter_buffer_num_packets (priv->jbuf), head);
msg = check_buffering_percent (jitterbuffer, percent);
@ -2746,7 +2750,7 @@ do_lost_timeout (GstRtpJitterBuffer * jitterbuffer, TimerData * timer,
GstRtpJitterBufferPrivate *priv = jitterbuffer->priv;
GstClockTime duration, timestamp;
guint seqnum, lost_packets, num_rtx_retry;
gboolean late;
gboolean late, head;
GstEvent *event;
RTPJitterBufferItem *item;
@ -2779,11 +2783,12 @@ do_lost_timeout (GstRtpJitterBuffer * jitterbuffer, TimerData * timer,
"retry", G_TYPE_UINT, num_rtx_retry, NULL));
item = alloc_item (event, ITEM_TYPE_LOST, -1, -1, seqnum, lost_packets, -1);
rtp_jitter_buffer_insert (priv->jbuf, item, NULL, NULL);
rtp_jitter_buffer_insert (priv->jbuf, item, &head, NULL);
/* remove timer now */
remove_timer (jitterbuffer, timer);
JBUF_SIGNAL_EVENT (priv);
if (head)
JBUF_SIGNAL_EVENT (priv);
return TRUE;
}
@ -3215,14 +3220,16 @@ gst_rtp_jitter_buffer_sink_query (GstPad * pad, GstObject * parent,
default:
if (GST_QUERY_IS_SERIALIZED (query)) {
RTPJitterBufferItem *item;
gboolean head;
JBUF_LOCK_CHECK (priv, out_flushing);
if (rtp_jitter_buffer_get_mode (priv->jbuf) !=
RTP_JITTER_BUFFER_MODE_BUFFER) {
GST_DEBUG_OBJECT (jitterbuffer, "adding serialized query");
item = alloc_item (query, ITEM_TYPE_QUERY, -1, -1, -1, 0, -1);
rtp_jitter_buffer_insert (priv->jbuf, item, NULL, NULL);
JBUF_SIGNAL_EVENT (priv);
rtp_jitter_buffer_insert (priv->jbuf, item, &head, NULL);
if (head)
JBUF_SIGNAL_EVENT (priv);
JBUF_WAIT_QUERY (priv, out_flushing);
res = priv->last_query;
} else {