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nle:source: Protect the probeid field with the GST_OBJECT_LOCK

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Avoiding races where we try to remove a probe on an already destroyed pad.
This commit is contained in:
Thibault Saunier 2014-09-19 12:29:28 +02:00
parent 03c284abb6
commit 37f50193fd
1 changed files with 14 additions and 0 deletions
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14
ges/nle/nlesource.c
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@ -136,6 +136,16 @@ nle_source_dispose (GObject * object)
if (priv->dispose_has_run)
return;
GST_OBJECT_LOCK (object);
if (priv->probeid) {
GST_DEBUG_OBJECT (source, "Removing blocking probe! %lu", priv->probeid);
priv->areblocked = FALSE;
gst_pad_remove_probe (priv->ghostedpad, priv->probeid);
priv->probeid = 0;
}
GST_OBJECT_UNLOCK (object);
if (source->element) {
gst_object_unref (source->element);
source->element = NULL;
@ -422,12 +432,14 @@ ghost_seek_pad (NleSource * source)
(NULL), ("Sending initial seek to upstream element failed"));
}
GST_OBJECT_LOCK (source);
if (priv->probeid) {
GST_DEBUG_OBJECT (source, "Removing blocking probe! %lu", priv->probeid);
priv->areblocked = FALSE;
gst_pad_remove_probe (priv->ghostedpad, priv->probeid);
priv->probeid = 0;
}
GST_OBJECT_UNLOCK (source);
return NULL;
}
@ -481,9 +493,11 @@ nle_source_prepare (NleObject * object)
if (priv->staticpad)
pad = gst_object_ref (priv->staticpad);
priv->ghostedpad = pad;
GST_OBJECT_LOCK (source);
priv->probeid = gst_pad_add_probe (pad,
GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
(GstPadProbeCallback) pad_blocked_cb, source, NULL);
GST_OBJECT_UNLOCK (source);
gst_object_unref (pad);
}