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gst/rtpmanager/gstrtpbin.c: Break out of callbacks when we are shutting down.

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Original commit message from CVS:
* gst/rtpmanager/gstrtpbin.c:
(gst_rtp_bin_propagate_property_to_jitterbuffer),
(gst_rtp_bin_change_state), (new_payload_found),
(new_ssrc_pad_found):
Break out of callbacks when we are shutting down.
Make sure no state changes can happen when we reconfigure.
This commit is contained in:
Wim Taymans 2008-05-27 16:48:10 +00:00 committed by Tim-Philipp Müller
parent bd1e0ebfc0
commit fda8195d76
1 changed files with 58 additions and 7 deletions
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65
gst/rtpmanager/gstrtpbin.c
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@ -204,11 +204,31 @@ GST_STATIC_PAD_TEMPLATE ("sink_%d",
#define GST_RTP_BIN_LOCK(bin) g_mutex_lock ((bin)->priv->bin_lock)
#define GST_RTP_BIN_UNLOCK(bin) g_mutex_unlock ((bin)->priv->bin_lock)
/* lock for shutdown */
#define GST_RTP_BIN_SHUTDOWN_LOCK(bin,label) \
G_STMT_START { \
if (g_atomic_int_get (&bin->priv->shutdown)) \
goto label; \
GST_STATE_LOCK (bin); \
if (g_atomic_int_get (&bin->priv->shutdown)) { \
GST_STATE_UNLOCK (bin); \
goto label; \
} \
} G_STMT_END
/* unlock for shutdown */
#define GST_RTP_BIN_SHUTDOWN_UNLOCK(bin) \
GST_STATE_UNLOCK (bin); \
struct _GstRtpBinPrivate
{
GMutex *bin_lock;
/* the time when we went to playing */
GstClockTime ntp_ns_base;
/* if we are shutting down or not */
gint shutdown;
};
/* signals and args */
@ -1661,17 +1681,23 @@ gst_rtp_bin_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn res;
GstRtpBin *rtpbin;
GstRtpBinPrivate *priv;
rtpbin = GST_RTP_BIN (element);
priv = rtpbin->priv;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
g_atomic_int_set (&priv->shutdown, 0);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
calc_ntp_ns_base (rtpbin);
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
g_atomic_int_set (&priv->shutdown, 1);
break;
default:
break;
}
@ -1691,7 +1717,8 @@ gst_rtp_bin_change_state (GstElement * element, GstStateChange transition)
return res;
}
/* a new pad (SSRC) was created in @session */
/* a new pad (SSRC) was created in @session. This signal is emited from the
* payload demuxer. */
static void
new_payload_found (GstElement * element, guint pt, GstPad * pad,
GstRtpBinStream * stream)
@ -1706,6 +1733,8 @@ new_payload_found (GstElement * element, guint pt, GstPad * pad,
GST_DEBUG ("new payload pad %d", pt);
GST_RTP_BIN_SHUTDOWN_LOCK (rtpbin, shutdown);
/* ghost the pad to the parent */
klass = GST_ELEMENT_GET_CLASS (rtpbin);
templ = gst_element_class_get_pad_template (klass, "recv_rtp_src_%d_%d_%d");
@ -1717,6 +1746,16 @@ new_payload_found (GstElement * element, guint pt, GstPad * pad,
gst_pad_set_caps (gpad, GST_PAD_CAPS (pad));
gst_pad_set_active (gpad, TRUE);
gst_element_add_pad (GST_ELEMENT_CAST (rtpbin), gpad);
GST_RTP_BIN_SHUTDOWN_UNLOCK (rtpbin);
return;
shutdown:
{
GST_DEBUG ("ignoring, we are shutting down");
return;
}
}
static GstCaps *
@ -1788,12 +1827,17 @@ static void
new_ssrc_pad_found (GstElement * element, guint ssrc, GstPad * pad,
GstRtpBinSession * session)
{
GstRtpBin *rtpbin;
GstRtpBinStream *stream;
GstPad *sinkpad, *srcpad;
gchar *padname;
GstCaps *caps;
GST_DEBUG_OBJECT (session->bin, "new SSRC pad %08x", ssrc);
rtpbin = session->bin;
GST_DEBUG_OBJECT (rtpbin, "new SSRC pad %08x", ssrc);
GST_RTP_BIN_SHUTDOWN_LOCK (rtpbin, shutdown);
GST_RTP_SESSION_LOCK (session);
@ -1807,14 +1851,14 @@ new_ssrc_pad_found (GstElement * element, guint ssrc, GstPad * pad,
const GstStructure *s;
guint val;
GST_DEBUG_OBJECT (session->bin, "pad has caps %" GST_PTR_FORMAT, caps);
GST_DEBUG_OBJECT (rtpbin, "pad has caps %" GST_PTR_FORMAT, caps);
s = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (s, "clock-rate", &stream->clock_rate)) {
stream->clock_rate = -1;
GST_WARNING_OBJECT (session->bin,
GST_WARNING_OBJECT (rtpbin,
"Caps have no clock rate %s from pad %s:%s",
gst_caps_to_string (caps), GST_DEBUG_PAD_NAME (pad));
}
@ -1828,7 +1872,7 @@ new_ssrc_pad_found (GstElement * element, guint ssrc, GstPad * pad,
}
/* get pad and link */
GST_DEBUG_OBJECT (session->bin, "linking jitterbuffer");
GST_DEBUG_OBJECT (rtpbin, "linking jitterbuffer");
padname = g_strdup_printf ("src_%d", ssrc);
srcpad = gst_element_get_static_pad (element, padname);
g_free (padname);
@ -1838,7 +1882,7 @@ new_ssrc_pad_found (GstElement * element, guint ssrc, GstPad * pad,
gst_object_unref (srcpad);
/* get the RTCP sync pad */
GST_DEBUG_OBJECT (session->bin, "linking sync pad");
GST_DEBUG_OBJECT (rtpbin, "linking sync pad");
padname = g_strdup_printf ("rtcp_src_%d", ssrc);
srcpad = gst_element_get_static_pad (element, padname);
g_free (padname);
@ -1861,14 +1905,21 @@ new_ssrc_pad_found (GstElement * element, guint ssrc, GstPad * pad,
"payload-type-change", (GCallback) payload_type_change, stream);
GST_RTP_SESSION_UNLOCK (session);
GST_RTP_BIN_SHUTDOWN_UNLOCK (rtpbin);
return;
/* ERRORS */
shutdown:
{
GST_DEBUG_OBJECT (rtpbin, "we are shutting down");
return;
}
no_stream:
{
GST_RTP_SESSION_UNLOCK (session);
GST_DEBUG_OBJECT (session->bin, "could not create stream");
GST_RTP_BIN_SHUTDOWN_UNLOCK (rtpbin);
GST_DEBUG_OBJECT (rtpbin, "could not create stream");
return;
}
}