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identity: unlock clock wait when appropriate

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... notably FLUSH and state change to READY.
This commit is contained in:
Mark Nauwelaerts 2011-12-02 13:19:38 +01:00
parent e34d796e41
commit bfcb5a43a6
1 changed files with 61 additions and 1 deletions
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62
plugins/elements/gstidentity.c
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@ -111,6 +111,8 @@ static GstFlowReturn gst_identity_prepare_output_buffer (GstBaseTransform
GstBuffer ** out_buf);
static gboolean gst_identity_start (GstBaseTransform * trans);
static gboolean gst_identity_stop (GstBaseTransform * trans);
static GstStateChangeReturn gst_identity_change_state (GstElement * element,
GstStateChange transition);
static guint gst_identity_signals[LAST_SIGNAL] = { 0 };
@ -179,9 +181,11 @@ static void
gst_identity_class_init (GstIdentityClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseTransformClass *gstbasetrans_class;
gobject_class = G_OBJECT_CLASS (klass);
gstelement_class = GST_ELEMENT_CLASS (klass);
gstbasetrans_class = GST_BASE_TRANSFORM_CLASS (klass);
gobject_class->set_property = gst_identity_set_property;
@ -271,6 +275,9 @@ gst_identity_class_init (GstIdentityClass * klass)
gobject_class->finalize = gst_identity_finalize;
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_identity_change_state);
gstbasetrans_class->event = GST_DEBUG_FUNCPTR (gst_identity_event);
gstbasetrans_class->transform_ip =
GST_DEBUG_FUNCPTR (gst_identity_transform_ip);
@ -377,6 +384,17 @@ gst_identity_event (GstBaseTransform * trans, GstEvent * event)
ret = parent_class->event (trans, event);
if (GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_START) {
GST_OBJECT_LOCK (identity);
if (identity->clock_id) {
GST_DEBUG_OBJECT (identity, "unlock clock wait");
gst_clock_id_unschedule (identity->clock_id);
gst_clock_id_unref (identity->clock_id);
identity->clock_id = NULL;
}
GST_OBJECT_UNLOCK (identity);
}
if (identity->single_segment
&& (GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT)) {
/* eat up segments */
@ -656,7 +674,6 @@ gst_identity_transform_ip (GstBaseTransform * trans, GstBuffer * buf)
timestamp = runtimestamp + GST_ELEMENT (identity)->base_time;
/* save id if we need to unlock */
/* FIXME: actually unlock this somewhere in the state changes */
identity->clock_id = gst_clock_new_single_shot_id (clock, timestamp);
GST_OBJECT_UNLOCK (identity);
@ -825,3 +842,46 @@ gst_identity_stop (GstBaseTransform * trans)
return TRUE;
}
static GstStateChangeReturn
gst_identity_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
GstIdentity *identity = GST_IDENTITY (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
GST_OBJECT_LOCK (identity);
if (identity->clock_id) {
GST_DEBUG_OBJECT (identity, "unlock clock wait");
gst_clock_id_unschedule (identity->clock_id);
gst_clock_id_unref (identity->clock_id);
identity->clock_id = NULL;
}
GST_OBJECT_UNLOCK (identity);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}