-/* Gnome-Streamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+/* GStreamer
+ * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
+ * 2000 Wim Taymans <wtay@chello.be>
+ *
+ * gstcaps.h: Header for caps subsystem
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
#ifndef __GST_CAPS_H__
#define __GST_CAPS_H__
-#include <gnome-xml/parser.h>
#include <gst/gstprops.h>
+G_BEGIN_DECLS
+
typedef struct _GstCaps GstCaps;
-typedef gpointer GstCapsFactoryEntry;
-typedef GstCapsFactoryEntry GstCapsFactory[];
+extern GType _gst_caps_type;
+
+#define GST_TYPE_CAPS (_gst_caps_type)
+
+
+#define GST_CAPS(caps) \
+ ((GstCaps *)(caps))
+
+#define GST_CAPS_IS_FIXED(caps) ((caps)->fixed)
+#define GST_CAPS_IS_CHAINED(caps) ((caps)->next)
+
+/* CR1: id is an int corresponding to the quark for the mime type because
+ * it's really fast when doing a first-pass check for caps compatibility */
struct _GstCaps {
- guint16 id; /* type id (major type) */
+ gchar *name; /* the name of this caps */
+ guint16 id; /* type id (major type) representing
+ the mime type */
- GstProps *properties; /* properties for this capability */
+ guint refcount;
+ gboolean fixed; /* this caps doesn't contain variable properties */
+
+ GstProps *properties; /* properties for this capability */
+
+ GstCaps *next; /* not with a GList for efficiency */
};
+/* factory macros which make it easier for plugins to instantiate */
+
+#define GST_CAPS_NEW(name, type, a...) \
+gst_caps_new ( \
+ name, \
+ type, \
+ gst_props_new ( \
+ a, \
+ NULL))
+
+#define GST_CAPS_FACTORY(factoryname, a...) \
+static GstCaps* \
+factoryname (void) \
+{ \
+ static GstCaps *caps = NULL; \
+ if (!caps) { \
+ caps = gst_caps_chain (a, NULL); \
+ } \
+ return caps; \
+}
+
+#define GST_CAPS_GET(fact) (fact)()
+
+
/* initialize the subsystem */
-void _gst_caps_initialize (void);
+void _gst_caps_initialize (void);
+
+GstCaps* gst_caps_new (const gchar *name, const gchar *mime, GstProps *props);
+GstCaps* gst_caps_new_id (const gchar *name, const guint16 id, GstProps *props);
+
+GstCaps* gst_caps_unref (GstCaps *caps);
+GstCaps* gst_caps_ref (GstCaps *caps);
+void gst_caps_destroy (GstCaps *caps);
+
+void gst_caps_debug (GstCaps *caps, const gchar *label);
+
+GstCaps* gst_caps_copy (GstCaps *caps);
+GstCaps* gst_caps_copy_1 (GstCaps *caps);
+GstCaps* gst_caps_copy_on_write (GstCaps *caps);
+
+const gchar* gst_caps_get_name (GstCaps *caps);
+void gst_caps_set_name (GstCaps *caps, const gchar *name);
+
+const gchar* gst_caps_get_mime (GstCaps *caps);
+void gst_caps_set_mime (GstCaps *caps, const gchar *mime);
+
+guint16 gst_caps_get_type_id (GstCaps *caps);
+void gst_caps_set_type_id (GstCaps *caps, guint16 type_id);
+
+GstCaps* gst_caps_set_props (GstCaps *caps, GstProps *props);
+GstProps* gst_caps_get_props (GstCaps *caps);
+
+#define gst_caps_set(caps, name, args...) gst_props_set ((caps)->properties, name, ##args)
+#define gst_caps_get(caps, name, args...) gst_props_get ((caps)->properties, name, ##args)
+
+#define gst_caps_get_int(caps,name,res) gst_props_entry_get_int(gst_props_get_entry((caps)->properties,name),res)
+#define gst_caps_get_float(caps,name,res) gst_props_entry_get_float(gst_props_get_entry((caps)->properties,name),res)
+#define gst_caps_get_fourcc_int(caps,name,res) gst_props_entry_get_fourcc_int(gst_props_get_entry((caps)->properties,name),res)
+#define gst_caps_get_boolean(caps,name,res) gst_props_entry_get_boolean(gst_props_get_entry((caps)->properties,name),res)
+#define gst_caps_get_string(caps,name,res) gst_props_entry_get_string(gst_props_get_entry((caps)->properties,name),res)
+
+#define gst_caps_has_property(caps, name) gst_props_has_property ((caps)->properties, name)
+#define gst_caps_has_property_typed(caps, name, type) gst_props_has_property_typed ((caps)->properties, name, type)
+#define gst_caps_has_fixed_property(caps, name) gst_props_has_fixed_property ((caps)->properties, name)
+
+GstCaps* gst_caps_get_by_name (GstCaps *caps, const gchar *name);
-GstCaps* gst_caps_new (gchar *mime);
-GstCaps* gst_caps_new_with_props (gchar *mime, GstProps *props);
-GstCaps* gst_caps_register (GstCapsFactory *factory);
+GstCaps* gst_caps_chain (GstCaps *caps, ...);
+GstCaps* gst_caps_append (GstCaps *caps, GstCaps *capstoadd);
+GstCaps* gst_caps_prepend (GstCaps *caps, GstCaps *capstoadd);
-GstCaps* gst_caps_set_props (GstCaps *caps, GstProps *props);
-GstProps* gst_caps_get_props (GstCaps *caps);
+gboolean gst_caps_is_always_compatible (GstCaps *fromcaps, GstCaps *tocaps);
+GstCaps* gst_caps_intersect (GstCaps *caps1, GstCaps *caps2);
+GstCaps* gst_caps_normalize (GstCaps *caps);
-gboolean gst_caps_check_compatibility (GstCaps *fromcaps, GstCaps *tocaps);
+#ifndef GST_DISABLE_LOADSAVE
+xmlNodePtr gst_caps_save_thyself (GstCaps *caps, xmlNodePtr parent);
+GstCaps* gst_caps_load_thyself (xmlNodePtr parent);
+#endif
-xmlNodePtr gst_caps_save_thyself (GstCaps *caps, xmlNodePtr parent);
-GstCaps* gst_caps_load_thyself (xmlNodePtr parent);
+G_END_DECLS
#endif /* __GST_CAPS_H__ */
projects / platform / upstream / gstreamer.git / blobdiff