*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
*/
/**
* SECTION:gsttypefindfactory
+ * @title: GstTypeFindFactory
* @short_description: Information about registered typefind functions
*
- * These functions allow querying informations about registered typefind
+ * These functions allow querying information about registered typefind
* functions. How to create and register these functions is described in
* the section <link linkend="gstreamer-Writing-typefind-functions">
* "Writing typefind functions"</link>.
*
- * <example>
- * <title>how to write a simple typefinder</title>
- * <programlisting>
+ * The following example shows how to write a very simple typefinder that
+ * identifies the given data. You can get quite a bit more complicated than
+ * that though.
+ * |[<!-- language="C" -->
* typedef struct {
* guint8 *data;
* guint size;
* g_list_free (type_list);
* return find.caps;
* };
- * </programlisting>
- * </example>
- *
- * The above example shows how to write a very simple typefinder that
- * identifies the given data. You can get quite a bit more complicated than
- * that though.
- *
- * Last reviewed on 2005-11-09 (0.9.4)
+ * ]|
*/
#include "gst_private.h"
static void gst_type_find_factory_dispose (GObject * object);
-static GstPluginFeatureClass *parent_class = NULL;
-
#define _do_init \
{ \
GST_DEBUG_CATEGORY_INIT (type_find_debug, "GST_TYPEFIND", \
GST_DEBUG_FG_GREEN, "typefinding subsystem"); \
}
+#define gst_type_find_factory_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstTypeFindFactory, gst_type_find_factory,
GST_TYPE_PLUGIN_FEATURE, _do_init);
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
- parent_class = g_type_class_peek_parent (klass);
-
object_class->dispose = gst_type_find_factory_dispose;
}
* gst_type_find_factory_get_list:
*
* Gets the list of all registered typefind factories. You must free the
- * list using gst_plugin_feature_list_free.
+ * list using gst_plugin_feature_list_free().
*
* The returned factories are sorted by highest rank first, and then by
- * factory name. (behaviour change since 0.10.26)
+ * factory name.
*
* Free-function: gst_plugin_feature_list_free
*
GList *
gst_type_find_factory_get_list (void)
{
- return gst_registry_get_feature_list (gst_registry_get_default (),
+ return gst_registry_get_feature_list (gst_registry_get (),
GST_TYPE_TYPE_FIND_FACTORY);
}
*
* Gets the extensions associated with a #GstTypeFindFactory. The returned
* array should not be changed. If you need to change stuff in it, you should
- * copy it using g_strdupv(). This function may return NULL to indicate
+ * copy it using g_strdupv(). This function may return %NULL to indicate
* a 0-length list.
*
- * Returns: (transfer none) (array zero-terminated=1) (element-type utf8): a
- * NULL-terminated array of extensions associated with this factory
+ * Returns: (transfer none) (array zero-terminated=1) (element-type utf8) (nullable):
+ * a %NULL-terminated array of extensions associated with this factory
*/
-gchar **
+const gchar *const *
gst_type_find_factory_get_extensions (GstTypeFindFactory * factory)
{
g_return_val_if_fail (GST_IS_TYPE_FIND_FACTORY (factory), NULL);
- return factory->extensions;
+ return (const gchar * const *) factory->extensions;
}
/**
gst_object_unref (new_factory);
}
}
+
+/**
+ * gst_type_find_factory_has_function:
+ * @factory: A #GstTypeFindFactory
+ *
+ * Check whether the factory has a typefind function. Typefind factories
+ * without typefind functions are a last-effort fallback mechanism to
+ * e.g. assume a certain media type based on the file extension.
+ *
+ * Returns: %TRUE if the factory has a typefind functions set, otherwise %FALSE
+ */
+gboolean
+gst_type_find_factory_has_function (GstTypeFindFactory * factory)
+{
+ g_return_val_if_fail (GST_IS_TYPE_FIND_FACTORY (factory), FALSE);
+
+ return (factory->function != NULL);
+}