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jitterbuffer: improve sync on first packets

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Don't throw away the first RTCP packet if it arrives before the first
RTP packet but remember and use it to signal sync once we get the
RTP packet.

See https://bugzilla.gnome.org/show_bug.cgi?id=691400
This commit is contained in:
Wim Taymans 2013-06-27 16:23:20 +02:00
parent 8969f00661
commit 519305d14d
1 changed files with 6 additions and 5 deletions
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11
gst/rtpmanager/gstrtpjitterbuffer.c
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@ -275,6 +275,7 @@ gst_rtp_jitter_buffer_clear_pt_map (GstRtpJitterBuffer * jitterbuffer);
static GstClockTime
gst_rtp_jitter_buffer_set_active (GstRtpJitterBuffer * jitterbuffer,
gboolean active, guint64 base_time);
static void do_handle_sync (GstRtpJitterBuffer * jitterbuffer);
static void
gst_rtp_jitter_buffer_class_init (GstRtpJitterBufferClass * klass)
@ -1392,6 +1393,10 @@ gst_rtp_jitter_buffer_chain (GstPad * pad, GstObject * parent,
priv->clock_rate, &tail, &percent)))
goto duplicate;
/* we had an unhandled SR, handle it now */
if (priv->last_sr)
do_handle_sync (jitterbuffer);
/* signal addition of new buffer when the _loop is waiting. */
if (priv->waiting && priv->active)
JBUF_SIGNAL (priv);
@ -2007,11 +2012,6 @@ do_handle_sync (GstRtpJitterBuffer * jitterbuffer)
priv = jitterbuffer->priv;
if (priv->last_sr == NULL) {
GST_DEBUG_OBJECT (jitterbuffer, "dropping, no SR RTCP");
return;
}
/* get the last values from the jitterbuffer */
rtp_jitter_buffer_get_sync (priv->jbuf, &base_rtptime, &base_time,
&clock_rate, &last_rtptime);
@ -2065,6 +2065,7 @@ do_handle_sync (GstRtpJitterBuffer * jitterbuffer)
"sr-buffer", GST_TYPE_BUFFER, priv->last_sr, NULL);
GST_DEBUG_OBJECT (jitterbuffer, "signaling sync");
gst_buffer_replace (&priv->last_sr, NULL);
JBUF_UNLOCK (priv);
g_signal_emit (jitterbuffer,
gst_rtp_jitter_buffer_signals[SIGNAL_HANDLE_SYNC], 0, s);