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tag: make GstTagMux base class a bit more functional

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We can't use G_DEFINE_*TYPE here because we need the klass in the _init
method to get to the padtemplates. Fixes 'GstTagDemux subclass GstTagDemux
did not set up a {sink,src} pad template' warnings.
This commit is contained in:
Tim-Philipp Müller 2012-02-12 16:54:56 +00:00
parent be22feb106
commit 06ea77710a
1 changed files with 30 additions and 5 deletions
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35
gst-libs/gst/tag/gsttagmux.c
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@ -82,10 +82,10 @@ struct _GstTagMuxPrivate
GST_DEBUG_CATEGORY_STATIC (gst_tag_mux_debug);
#define GST_CAT_DEFAULT gst_tag_mux_debug
#define gst_tag_mux_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstTagMux, gst_tag_mux, GST_TYPE_ELEMENT,
G_IMPLEMENT_INTERFACE (GST_TYPE_TAG_SETTER, NULL));
static GstElementClass *parent_class;
static void gst_tag_mux_class_init (GstTagMuxClass * klass);
static void gst_tag_mux_init (GstTagMux * mux, GstTagMuxClass * mux_class);
static GstStateChangeReturn
gst_tag_mux_change_state (GstElement * element, GstStateChange transition);
static GstFlowReturn gst_tag_mux_chain (GstPad * pad, GstObject * parent,
@ -93,6 +93,29 @@ static GstFlowReturn gst_tag_mux_chain (GstPad * pad, GstObject * parent,
static gboolean gst_tag_mux_sink_event (GstPad * pad, GstObject * parent,
GstEvent * event);
/* we can't use G_DEFINE_ABSTRACT_TYPE because we need the klass in the _init
* method to get to the padtemplates */
GType
gst_tag_mux_get_type (void)
{
static volatile gsize tag_mux_type = 0;
if (g_once_init_enter (&tag_mux_type)) {
const GInterfaceInfo interface_info = { NULL, NULL, NULL };
GType _type;
_type = g_type_register_static_simple (GST_TYPE_ELEMENT,
"GstTagMux", sizeof (GstTagMuxClass),
(GClassInitFunc) gst_tag_mux_class_init, sizeof (GstTagMux),
(GInstanceInitFunc) gst_tag_mux_init, G_TYPE_FLAG_ABSTRACT);
g_type_add_interface_static (_type, GST_TYPE_TAG_SETTER, &interface_info);
g_once_init_leave (&tag_mux_type, _type);
}
return tag_mux_type;
}
static void
gst_tag_mux_finalize (GObject * obj)
{
@ -125,6 +148,8 @@ gst_tag_mux_class_init (GstTagMuxClass * klass)
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
parent_class = g_type_class_peek_parent (klass);
gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_tag_mux_finalize);
gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_tag_mux_change_state);
@ -135,9 +160,9 @@ gst_tag_mux_class_init (GstTagMuxClass * klass)
}
static void
gst_tag_mux_init (GstTagMux * mux)
gst_tag_mux_init (GstTagMux * mux, GstTagMuxClass * mux_class)
{
GstElementClass *element_klass = GST_ELEMENT_GET_CLASS (mux);
GstElementClass *element_klass = GST_ELEMENT_CLASS (mux_class);
GstPadTemplate *tmpl;
mux->priv =