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concat: Add active-pad property

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=746949
This commit is contained in:
Carlos Rafael Giani 2015-06-11 11:37:30 +02:00 committed by Sebastian Dröge
parent d8db88d078
commit 77b6352194
1 changed files with 59 additions and 1 deletions
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60
plugins/elements/gstconcat.c
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@ -101,6 +101,12 @@ GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
enum
{
PROP_0,
PROP_ACTIVE_PAD
};
#define _do_init \
GST_DEBUG_CATEGORY_INIT (gst_concat_debug, "concat", 0, "concat element");
#define gst_concat_parent_class parent_class
@ -108,6 +114,8 @@ G_DEFINE_TYPE_WITH_CODE (GstConcat, gst_concat, GST_TYPE_ELEMENT, _do_init);
static void gst_concat_dispose (GObject * object);
static void gst_concat_finalize (GObject * object);
static void gst_concat_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_concat_change_state (GstElement * element,
GstStateChange transition);
@ -129,6 +137,10 @@ static gboolean gst_concat_src_query (GstPad * pad, GstObject * parent,
static gboolean gst_concat_switch_pad (GstConcat * self);
static void gst_concat_notify_active_pad (GstConcat * self);
static GParamSpec *pspec_active_pad = NULL;
static void
gst_concat_class_init (GstConcatClass * klass)
{
@ -138,6 +150,14 @@ gst_concat_class_init (GstConcatClass * klass)
gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_concat_dispose);
gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_concat_finalize);
gobject_class->get_property = gst_concat_get_property;
pspec_active_pad = g_param_spec_object ("active-pad", "Active pad",
"Currently active src pad", GST_TYPE_PAD, G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
g_object_class_install_property (gobject_class, PROP_ACTIVE_PAD,
pspec_active_pad);
gst_element_class_set_static_metadata (gstelement_class,
"Concat", "Generic", "Concatenate multiple streams",
"Sebastian Dröge <sebastian@centricular.com>");
@ -201,6 +221,25 @@ gst_concat_finalize (GObject * object)
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_concat_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstConcat *self = GST_CONCAT (object);
switch (prop_id) {
case PROP_ACTIVE_PAD:{
g_mutex_lock (&self->lock);
g_value_set_object (value, self->current_sinkpad);
g_mutex_unlock (&self->lock);
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstPad *
gst_concat_request_new_pad (GstElement * element, GstPadTemplate * templ,
const gchar * name, const GstCaps * caps)
@ -208,6 +247,7 @@ gst_concat_request_new_pad (GstElement * element, GstPadTemplate * templ,
GstConcat *self = GST_CONCAT (element);
GstPad *sinkpad;
gchar *pad_name;
gboolean do_notify = FALSE;
GST_DEBUG_OBJECT (element, "requesting pad");
@ -234,12 +274,17 @@ gst_concat_request_new_pad (GstElement * element, GstPadTemplate * templ,
g_mutex_lock (&self->lock);
self->sinkpads = g_list_prepend (self->sinkpads, gst_object_ref (sinkpad));
if (!self->current_sinkpad)
if (!self->current_sinkpad) {
do_notify = TRUE;
self->current_sinkpad = gst_object_ref (sinkpad);
}
g_mutex_unlock (&self->lock);
gst_element_add_pad (element, sinkpad);
if (do_notify)
gst_concat_notify_active_pad (self);
return sinkpad;
}
@ -251,6 +296,7 @@ gst_concat_release_pad (GstElement * element, GstPad * pad)
GList *l;
gboolean current_pad_removed = FALSE;
gboolean eos = FALSE;
gboolean do_notify = FALSE;
GST_DEBUG_OBJECT (self, "releasing pad");
@ -267,6 +313,7 @@ gst_concat_release_pad (GstElement * element, GstPad * pad)
if (self->current_sinkpad == GST_PAD_CAST (spad)) {
eos = ! !gst_concat_switch_pad (self);
current_pad_removed = TRUE;
do_notify = TRUE;
}
for (l = self->sinkpads; l; l = l->next) {
@ -280,6 +327,9 @@ gst_concat_release_pad (GstElement * element, GstPad * pad)
gst_element_remove_pad (GST_ELEMENT_CAST (self), pad);
if (do_notify)
gst_concat_notify_active_pad (self);
if (GST_STATE (self) > GST_STATE_READY) {
if (current_pad_removed && !eos)
gst_element_post_message (GST_ELEMENT_CAST (self),
@ -412,6 +462,12 @@ gst_concat_switch_pad (GstConcat * self)
return next;
}
static void
gst_concat_notify_active_pad (GstConcat * self)
{
g_object_notify_by_pspec ((GObject *) self, pspec_active_pad);
}
static gboolean
gst_concat_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
@ -495,6 +551,8 @@ gst_concat_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
g_mutex_unlock (&self->lock);
ret = TRUE;
gst_concat_notify_active_pad (self);
if (!next) {
gst_pad_push_event (self->srcpad, gst_event_new_eos ());
} else {