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rtpbin: Sink jitterbuffer/storage before passing as parameters to signals

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Otherwise signal handlers from bindings will take ownership of them as
they are still floating, and we won't own a reference inside rtpbin
anymore.

Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/issues/515
This commit is contained in:
Sebastian Dröge 2018-11-06 23:02:21 +02:00 committed by Sebastian Dröge
parent 65a7d39bd4
commit 87202cc03d
1 changed files with 14 additions and 0 deletions
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14
gst/rtpmanager/gstrtpbin.c
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@ -782,6 +782,9 @@ create_session (GstRtpBin * rtpbin, gint id)
if (!(storage = gst_element_factory_make ("rtpstorage", NULL)))
goto no_storage;
/* need to sink the storage or otherwise signal handlers from bindings will
* take ownership of it and we don't own it anymore */
gst_object_ref_sink (storage);
g_signal_emit (rtpbin, gst_rtp_bin_signals[SIGNAL_NEW_STORAGE], 0, storage,
id);
@ -847,6 +850,10 @@ create_session (GstRtpBin * rtpbin, gint id)
gst_bin_add (GST_BIN_CAST (rtpbin), sess->rtcp_funnel);
gst_bin_add (GST_BIN_CAST (rtpbin), storage);
/* unref the storage again, the bin has a reference now and
* we don't need it anymore */
gst_object_unref (storage);
GST_OBJECT_LOCK (rtpbin);
target = GST_STATE_TARGET (rtpbin);
GST_OBJECT_UNLOCK (rtpbin);
@ -1850,6 +1857,9 @@ create_stream (GstRtpBinSession * session, guint32 ssrc)
g_object_set (buffer, "max-ts-offset-adjustment",
rtpbin->max_ts_offset_adjustment, NULL);
/* need to sink the jitterbufer or otherwise signal handlers from bindings will
* take ownership of it and we don't own it anymore */
gst_object_ref_sink (buffer);
g_signal_emit (rtpbin, gst_rtp_bin_signals[SIGNAL_NEW_JITTERBUFFER], 0,
buffer, session->id, ssrc);
@ -1857,6 +1867,10 @@ create_stream (GstRtpBinSession * session, guint32 ssrc)
gst_bin_add (GST_BIN_CAST (rtpbin), demux);
gst_bin_add (GST_BIN_CAST (rtpbin), buffer);
/* unref the jitterbuffer again, the bin has a reference now and
* we don't need it anymore */
gst_object_unref (buffer);
/* link stuff */
if (demux)
gst_element_link_pads_full (buffer, "src", demux, "sink",