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gst/rtpmanager/gstrtpjitterbuffer.c: When synchronizing buffers, take peer latency into account.

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Original commit message from CVS:
* gst/rtpmanager/gstrtpjitterbuffer.c:
(gst_rtp_jitter_buffer_change_state), (gst_rtp_jitter_buffer_loop),
(gst_rtp_jitter_buffer_query):
When synchronizing buffers, take peer latency into account.
Don't try to add our latency to invalid peer max latency values.
This commit is contained in:
Wim Taymans 2007-08-27 21:17:21 +00:00 committed by Tim-Philipp Müller
parent 10d6ba4d61
commit 6835b966ec
1 changed files with 14 additions and 1 deletions
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15
gst/rtpmanager/gstrtpjitterbuffer.c
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@ -158,6 +158,9 @@ struct _GstRtpJitterBufferPrivate
GstSegment segment;
GstClockID clock_id;
guint32 waiting_seqnum;
/* the latency of the upstream peer, we have to take this into account when
* synchronizing the buffers. */
GstClockTime peer_latency;
/* some accounting */
guint64 num_late;
@ -581,6 +584,7 @@ gst_rtp_jitter_buffer_change_state (GstElement * element,
/* reset negotiated values */
priv->clock_rate = -1;
priv->clock_base = -1;
priv->peer_latency = 0;
/* block until we go to PLAYING */
priv->blocked = TRUE;
JBUF_UNLOCK (priv);
@ -1011,6 +1015,7 @@ again:
/* add latency */
running_time += (priv->latency_ms * GST_MSECOND);
running_time += priv->peer_latency;
GST_DEBUG_OBJECT (jitterbuffer, "sync to running_time %" GST_TIME_FORMAT,
GST_TIME_ARGS (running_time));
@ -1152,8 +1157,16 @@ gst_rtp_jitter_buffer_query (GstPad * pad, GstQuery * query)
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min_latency), GST_TIME_ARGS (max_latency));
/* store this so that we can safely sync on the peer buffers. */
JBUF_LOCK (priv);
priv->peer_latency = min_latency;
JBUF_UNLOCK (priv);
min_latency += priv->latency_ms * GST_MSECOND;
max_latency += priv->latency_ms * GST_MSECOND;
/* max_latency can be -1, meaning there is no upper limit for the
* latency. */
if (max_latency != -1)
max_latency += priv->latency_ms * GST_MSECOND;
GST_DEBUG_OBJECT (jitterbuffer, "Calculated total latency : min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,