summaryrefslogtreecommitdiffstats
path: root/gst
diff options
context:
space:
mode:
authorWim Taymans <wim.taymans@gmail.com>2007-04-13 09:20:55 +0000
committerWim Taymans <wim.taymans@gmail.com>2007-04-13 09:20:55 +0000
commit92ef802b85cee35d834adcb842db386ed403424c (patch)
tree2dbe466243dcd9f04cb6f4bbb9be748c77e4e0f0 /gst
parentea885f5afe2a266524a039d6d84ba3316158b091 (diff)
downloadgst-plugins-bad-92ef802b85cee35d834adcb842db386ed403424c.tar.gz
gst-plugins-bad-92ef802b85cee35d834adcb842db386ed403424c.tar.bz2
gst-plugins-bad-92ef802b85cee35d834adcb842db386ed403424c.zip
gst/rtpmanager/: Protect lists and structures with locks.
Original commit message from CVS: * gst/rtpmanager/gstrtpbin.c: (create_session), (get_pt_map), (gst_rtp_bin_init), (gst_rtp_bin_finalize), (new_ssrc_pad_found), (create_recv_rtp), (gst_rtp_bin_request_new_pad): * gst/rtpmanager/gstrtpbin.h: * gst/rtpmanager/gstrtpclient.c: * gst/rtpmanager/gstrtpsession.c: (gst_rtp_session_class_init), (gst_rtp_session_init), (gst_rtp_session_finalize), (gst_rtp_session_event_recv_rtp_sink), (gst_rtp_session_event_recv_rtcp_sink), (gst_rtp_session_chain_recv_rtcp), (gst_rtp_session_request_new_pad): Protect lists and structures with locks. Return FLOW_OK from RTCP messages for now.
Diffstat (limited to 'gst')
-rw-r--r--gst/rtpmanager/gstrtpbin.c51
-rw-r--r--gst/rtpmanager/gstrtpbin.h1
-rw-r--r--gst/rtpmanager/gstrtpclient.c1
-rw-r--r--gst/rtpmanager/gstrtpsession.c30
4 files changed, 71 insertions, 12 deletions
diff --git a/gst/rtpmanager/gstrtpbin.c b/gst/rtpmanager/gstrtpbin.c
index b0882b67..6825e9cc 100644
--- a/gst/rtpmanager/gstrtpbin.c
+++ b/gst/rtpmanager/gstrtpbin.c
@@ -101,9 +101,12 @@ GST_STATIC_PAD_TEMPLATE ("send_rtp_src_%d",
#define GST_RTP_BIN_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), GST_TYPE_RTP_BIN, GstRTPBinPrivate))
+#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)
+
struct _GstRTPBinPrivate
{
- guint foo;
+ GMutex *bin_lock;
};
/* signals and args */
@@ -151,6 +154,9 @@ struct _GstRTPBinStream
gulong demux_ptreq_sig;
};
+#define GST_RTP_SESSION_LOCK(sess) g_mutex_lock ((sess)->lock)
+#define GST_RTP_SESSION_UNLOCK(sess) g_mutex_unlock ((sess)->lock)
+
/* Manages the receiving end of the packets.
*
* There is one such structure for each RTP session (audio/video/...).
@@ -171,6 +177,8 @@ struct _GstRTPBinSession
GstElement *demux;
gulong demux_newpad_sig;
+ GMutex *lock;
+
/* list of GstRTPBinStream */
GSList *streams;
@@ -187,7 +195,7 @@ struct _GstRTPBinSession
GstPad *rtcp_src;
};
-/* find a session with the given id */
+/* find a session with the given id. Must be called with RTP_BIN_LOCK */
static GstRTPBinSession *
find_session_by_id (GstRTPBin * rtpbin, gint id)
{
@@ -202,7 +210,7 @@ find_session_by_id (GstRTPBin * rtpbin, gint id)
return NULL;
}
-/* create a session with the given id */
+/* create a session with the given id. Must be called with RTP_BIN_LOCK */
static GstRTPBinSession *
create_session (GstRTPBin * rtpbin, gint id)
{
@@ -216,6 +224,7 @@ create_session (GstRTPBin * rtpbin, gint id)
goto no_demux;
sess = g_new0 (GstRTPBinSession, 1);
+ sess->lock = g_mutex_new ();
sess->id = id;
sess->bin = rtpbin;
sess->session = elem;
@@ -271,11 +280,12 @@ get_pt_map (GstRTPBinSession * session, guint pt)
GST_DEBUG ("searching pt %d in cache", pt);
+ GST_RTP_SESSION_LOCK (session);
+
/* first look in the cache */
caps = g_hash_table_lookup (session->ptmap, GINT_TO_POINTER (pt));
- if (caps) {
+ if (caps)
goto done;
- }
bin = session->bin;
@@ -304,16 +314,21 @@ get_pt_map (GstRTPBinSession * session, guint pt)
g_hash_table_insert (session->ptmap, GINT_TO_POINTER (pt), caps);
done:
+ GST_RTP_SESSION_UNLOCK (session);
+
return caps;
/* ERRORS */
no_caps:
{
+ GST_RTP_SESSION_UNLOCK (session);
GST_DEBUG ("no pt map could be obtained");
return NULL;
}
}
+/* create a new stream with @ssrc in @session. Must be called with
+ * RTP_SESSION_LOCK. */
static GstRTPBinStream *
create_stream (GstRTPBinSession * session, guint32 ssrc)
{
@@ -457,6 +472,7 @@ static void
gst_rtp_bin_init (GstRTPBin * rtpbin, GstRTPBinClass * klass)
{
rtpbin->priv = GST_RTP_BIN_GET_PRIVATE (rtpbin);
+ rtpbin->priv->bin_lock = g_mutex_new ();
rtpbin->provided_clock = gst_system_clock_obtain ();
}
@@ -467,6 +483,8 @@ gst_rtp_bin_finalize (GObject * object)
rtpbin = GST_RTP_BIN (object);
+ g_mutex_free (rtpbin->priv->bin_lock);
+
G_OBJECT_CLASS (parent_class)->finalize (object);
}
@@ -608,6 +626,8 @@ new_ssrc_pad_found (GstElement * element, guint ssrc, GstPad * pad,
GST_DEBUG_OBJECT (session->bin, "new SSRC pad %08x", ssrc);
+ GST_RTP_SESSION_LOCK (session);
+
/* create new stream */
stream = create_stream (session, ssrc);
if (!stream)
@@ -629,17 +649,21 @@ new_ssrc_pad_found (GstElement * element, guint ssrc, GstPad * pad,
stream->demux_ptreq_sig = g_signal_connect (stream->demux,
"request-pt-map", (GCallback) pt_map_requested, stream);
+ GST_RTP_SESSION_UNLOCK (session);
+
return;
/* ERRORS */
no_stream:
{
+ GST_RTP_SESSION_UNLOCK (session);
GST_DEBUG ("could not create stream");
return;
}
}
-/* Create a pad for receiving RTP for the session in @name
+/* Create a pad for receiving RTP for the session in @name. Must be called with
+ * RTP_BIN_LOCK.
*/
static GstPad *
create_recv_rtp (GstRTPBin * rtpbin, GstPadTemplate * templ, const gchar * name)
@@ -664,6 +688,7 @@ create_recv_rtp (GstRTPBin * rtpbin, GstPadTemplate * templ, const gchar * name)
if (session == NULL)
goto create_error;
}
+
/* check if pad was requested */
if (session->recv_rtp_sink != NULL)
goto existed;
@@ -729,7 +754,8 @@ link_failed:
}
}
-/* Create a pad for receiving RTCP for the session in @name
+/* Create a pad for receiving RTCP for the session in @name. Must be called with
+ * RTP_BIN_LOCK.
*/
static GstPad *
create_recv_rtcp (GstRTPBin * rtpbin, GstPadTemplate * templ,
@@ -821,7 +847,8 @@ link_failed:
#endif
}
-/* Create a pad for sending RTP for the session in @name
+/* Create a pad for sending RTP for the session in @name. Must be called with
+ * RTP_BIN_LOCK.
*/
static GstPad *
create_send_rtp (GstRTPBin * rtpbin, GstPadTemplate * templ, const gchar * name)
@@ -905,7 +932,8 @@ no_srcpad:
}
}
-/* Create a pad for sending RTCP for the session in @name
+/* Create a pad for sending RTCP for the session in @name. Must be called with
+ * RTP_BIN_LOCK.
*/
static GstPad *
create_rtcp (GstRTPBin * rtpbin, GstPadTemplate * templ, const gchar * name)
@@ -978,6 +1006,8 @@ gst_rtp_bin_request_new_pad (GstElement * element,
rtpbin = GST_RTP_BIN (element);
klass = GST_ELEMENT_GET_CLASS (element);
+ GST_RTP_BIN_LOCK (rtpbin);
+
/* figure out the template */
if (templ == gst_element_class_get_pad_template (klass, "recv_rtp_sink_%d")) {
result = create_recv_rtp (rtpbin, templ, name);
@@ -992,11 +1022,14 @@ gst_rtp_bin_request_new_pad (GstElement * element,
} else
goto wrong_template;
+ GST_RTP_BIN_UNLOCK (rtpbin);
+
return result;
/* ERRORS */
wrong_template:
{
+ GST_RTP_BIN_UNLOCK (rtpbin);
g_warning ("rtpbin: this is not our template");
return NULL;
}
diff --git a/gst/rtpmanager/gstrtpbin.h b/gst/rtpmanager/gstrtpbin.h
index 649c3f30..e40b571d 100644
--- a/gst/rtpmanager/gstrtpbin.h
+++ b/gst/rtpmanager/gstrtpbin.h
@@ -42,6 +42,7 @@ struct _GstRTPBin {
/* a list of session */
GSList *sessions;
+ /* clock we provide */
GstClock *provided_clock;
/*< private >*/
diff --git a/gst/rtpmanager/gstrtpclient.c b/gst/rtpmanager/gstrtpclient.c
index 422d57c6..34c8afb2 100644
--- a/gst/rtpmanager/gstrtpclient.c
+++ b/gst/rtpmanager/gstrtpclient.c
@@ -83,6 +83,7 @@ GST_STATIC_PAD_TEMPLATE ("rtp_src_%d_%d",
struct _GstRTPClientPrivate
{
+ gint foo;
};
/* all the info needed to handle the stream with SSRC */
diff --git a/gst/rtpmanager/gstrtpsession.c b/gst/rtpmanager/gstrtpsession.c
index 5d7508a6..cdad7e9b 100644
--- a/gst/rtpmanager/gstrtpsession.c
+++ b/gst/rtpmanager/gstrtpsession.c
@@ -114,6 +114,17 @@ enum
PROP_0
};
+#define GST_RTP_SESSION_GET_PRIVATE(obj) \
+ (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GST_TYPE_RTP_SESSION, GstRTPSessionPrivate))
+
+#define GST_RTP_SESSION_LOCK(sess) g_mutex_lock ((sess)->priv->lock)
+#define GST_RTP_SESSION_UNLOCK(sess) g_mutex_unlock ((sess)->priv->lock)
+
+struct _GstRTPSessionPrivate
+{
+ GMutex *lock;
+};
+
/* GObject vmethods */
static void gst_rtp_session_finalize (GObject * object);
static void gst_rtp_session_set_property (GObject * object, guint prop_id,
@@ -167,6 +178,8 @@ gst_rtp_session_class_init (GstRTPSessionClass * klass)
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
+ g_type_class_add_private (klass, sizeof (GstRTPSessionPrivate));
+
gobject_class->finalize = gst_rtp_session_finalize;
gobject_class->set_property = gst_rtp_session_set_property;
gobject_class->get_property = gst_rtp_session_get_property;
@@ -185,6 +198,8 @@ gst_rtp_session_class_init (GstRTPSessionClass * klass)
static void
gst_rtp_session_init (GstRTPSession * rtpsession, GstRTPSessionClass * klass)
{
+ rtpsession->priv = GST_RTP_SESSION_GET_PRIVATE (rtpsession);
+ rtpsession->priv->lock = g_mutex_new ();
}
static void
@@ -193,6 +208,7 @@ gst_rtp_session_finalize (GObject * object)
GstRTPSession *rtpsession;
rtpsession = GST_RTP_SESSION (object);
+ g_mutex_free (rtpsession->priv->lock);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
@@ -269,7 +285,8 @@ gst_rtp_session_event_recv_rtp_sink (GstPad * pad, GstEvent * event)
rtpsession = GST_RTP_SESSION (gst_pad_get_parent (pad));
- GST_DEBUG_OBJECT (rtpsession, "received event");
+ GST_DEBUG_OBJECT (rtpsession, "received event %s",
+ GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
default:
@@ -310,7 +327,8 @@ gst_rtp_session_event_recv_rtcp_sink (GstPad * pad, GstEvent * event)
rtpsession = GST_RTP_SESSION (gst_pad_get_parent (pad));
- GST_DEBUG_OBJECT (rtpsession, "received event");
+ GST_DEBUG_OBJECT (rtpsession, "received event %s",
+ GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
default:
@@ -340,7 +358,7 @@ gst_rtp_session_chain_recv_rtcp (GstPad * pad, GstBuffer * buffer)
gst_object_unref (rtpsession);
- return ret;
+ return GST_FLOW_OK;
}
static GstFlowReturn
@@ -504,6 +522,8 @@ gst_rtp_session_request_new_pad (GstElement * element,
GST_DEBUG_OBJECT (element, "requesting pad %s", GST_STR_NULL (name));
+ GST_RTP_SESSION_LOCK (rtpsession);
+
/* figure out the template */
if (templ == gst_element_class_get_pad_template (klass, "recv_rtp_sink")) {
if (rtpsession->recv_rtp_sink != NULL)
@@ -530,16 +550,20 @@ gst_rtp_session_request_new_pad (GstElement * element,
} else
goto wrong_template;
+ GST_RTP_SESSION_UNLOCK (rtpsession);
+
return result;
/* ERRORS */
wrong_template:
{
+ GST_RTP_SESSION_UNLOCK (rtpsession);
g_warning ("rtpsession: this is not our template");
return NULL;
}
exists:
{
+ GST_RTP_SESSION_UNLOCK (rtpsession);
g_warning ("rtpsession: pad already requested");
return NULL;
}