Reorganized BMediaRoster support functions.

Improved dormant node support. git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2910 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-03-14 14:09:27 +00:00
parent 742580b40f
commit 8b04ffc12d
2 changed files with 278 additions and 160 deletions
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2003 Marcus Overhagen.
+ * All Rights Reserved.
+ *
+ * This file may be used under the terms of the MIT License.
+ */
+
+#ifndef _MEDIA_ROSTER_EX_H_
+#define _MEDIA_ROSTER_EX_H_
+
+#ifndef _MEDIA_T_LIST_H
+	#include "TList.h"
+#endif
+#ifndef _DATA_EXCHANGE_H
+	#include "DataExchange.h"
+#endif
+#ifndef _MEDIA_NODE_H
+	#include <MediaNode.h>
+#endif
+#ifndef _MEDIA_ADD_ON_H
+	#include <MediaAddOn.h>
+#endif
+
+namespace BPrivate { namespace media {
+
+/* The BMediaRosterEx class is an extension to the BMediaRoster.
+ * It provides functionality that can be used by the implementation
+ * of media_server, media_addon_server and libmedia.so.
+ * To access it, convert any BMediaRoster pointer in a BMediaRosterEx
+ * pointer using the inline function provided below.
+ */
+class BMediaRosterEx : public BMediaRoster
+{
+public:
+	status_t InstantiateDormantNode(media_addon_id addonid, int32 flavorid, media_node *out_node);
+	status_t GetDormantFlavorInfo(media_addon_id addonid, int32 flavorid, dormant_flavor_info *out_flavor);
+	status_t GetNode(node_type type, media_node * out_node, int32 * out_input_id = NULL, BString * out_input_name = NULL);
+	status_t SetNode(node_type type, const media_node *node, const dormant_node_info *info = NULL, const media_input *input = NULL);
+	status_t GetAllOutputs(const media_node & node, List<media_output> *list);
+	status_t GetAllInputs(const media_node & node, List<media_input> *list);
+	status_t PublishOutputs(const media_node & node, List<media_output> *list);
+	status_t PublishInputs(const media_node & node, List<media_input> *list);
+
+private:
+	friend class BMediaRoster;
+};
+
+/* The pointer returned by BMediaRoster::Roster() is always a
+ * BMediaRosterEx object pointer. Use this to convert it.
+ */
+inline BMediaRosterEx * MediaRosterEx(BMediaRoster *mediaroster)
+{
+	return static_cast<BMediaRosterEx *>(mediaroster);
+}
+
+
+} } // BPrivate::media
+using namespace BPrivate::media;
+
+#endif