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subtitleoverlay: Only recreate factory caps if necessary and cache them

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This commit is contained in:
Sebastian Dröge 2009-11-11 17:08:47 +01:00
parent 068aecc389
commit 7827660dcd
1 changed files with 20 additions and 6 deletions
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26
gst/playback/gstsubtitleoverlay.c
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@ -304,18 +304,32 @@ gst_subtitle_overlay_update_factory_list (GstSubtitleOverlay * self)
return (self->factories != NULL);
}
G_LOCK_DEFINE_STATIC (_factory_caps);
static GstCaps *_factory_caps = NULL;
static guint32 _factory_caps_cookie = 0;
GstCaps *
gst_subtitle_overlay_create_factory_caps (void)
{
GList *factories;
GstCaps *subcaps;
GstCaps *subcaps = NULL;
subcaps = gst_caps_new_empty ();
G_LOCK (_factory_caps);
if (!_factory_caps
|| _factory_caps_cookie !=
gst_default_registry_get_feature_list_cookie ()) {
if (_factory_caps)
gst_caps_unref (_factory_caps);
_factory_caps = gst_caps_new_empty ();
factories = gst_default_registry_feature_filter (
(GstPluginFeatureFilter) _factory_filter, FALSE, &subcaps);
GST_DEBUG ("Created factory caps: %" GST_PTR_FORMAT, subcaps);
gst_plugin_feature_list_free (factories);
factories = gst_default_registry_feature_filter (
(GstPluginFeatureFilter) _factory_filter, FALSE, &_factory_caps);
GST_DEBUG ("Created factory caps: %" GST_PTR_FORMAT, _factory_caps);
gst_plugin_feature_list_free (factories);
_factory_caps_cookie = gst_default_registry_get_feature_list_cookie ();
}
subcaps = gst_caps_ref (_factory_caps);
G_UNLOCK (_factory_caps);
return subcaps;
}