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/* GStreamer
* Copyright (C) 2003 David A. Schleef <ds@schleef.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* 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.
*/
#ifndef __GST_CAPS_H__
#define __GST_CAPS_H__
#include <gst/gstconfig.h>
#include <gst/gststructure.h>
G_BEGIN_DECLS
#define GST_TYPE_CAPS (gst_caps_get_type())
#define GST_CAPS(object) ((GstCaps*)object)
#define GST_IS_CAPS(object) ((object) && (GST_CAPS(object)->type == GST_TYPE_CAPS))
#define GST_CAPS_FLAGS_ANY (1 << 0)
#define GST_CAPS_ANY gst_caps_new_any()
#define GST_CAPS_NONE gst_caps_new_empty()
#define GST_STATIC_CAPS_ANY GST_STATIC_CAPS("ANY")
#define GST_STATIC_CAPS_NONE GST_STATIC_CAPS("NONE")
#define GST_CAPS_IS_SIMPLE(caps) (gst_caps_get_size(caps) == 1)
#define gst_caps_is_simple(caps) GST_CAPS_IS_SIMPLE(caps)
#ifndef GST_DISABLE_DEPRECATED
#define GST_DEBUG_CAPS(string, caps) \
GST_DEBUG ( string "%s: " GST_PTR_FORMAT, caps)
#endif
#define GST_STATIC_CAPS(string) \
{ \
/* caps */ { 0 }, \
/* string */ string, \
}
typedef struct _GstCaps GstCaps;
typedef struct _GstStaticCaps GstStaticCaps;
/* refcount */
#define GST_CAPS_REFCOUNT(caps) ((GST_CAPS(caps))->refcount)
#define GST_CAPS_REFCOUNT_VALUE(caps) (gst_atomic_int_read (&(GST_CAPS(caps))->refcount))
struct _GstCaps {
GType type;
/*< public >*/ /* with COW */
/* refcounting */
GstAtomicInt refcount;
guint16 flags;
GPtrArray *structs;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
struct _GstStaticCaps {
/*< public >*/
GstCaps caps;
const char *string;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
GType gst_caps_get_type (void);
GstCaps * gst_caps_new_empty (void);
GstCaps * gst_caps_new_any (void);
GstCaps * gst_caps_new_simple (const char *media_type,
const char *fieldname,
...);
GstCaps * gst_caps_new_full (GstStructure *struct1,
...);
GstCaps * gst_caps_new_full_valist (GstStructure *structure,
va_list var_args);
/* reference counting */
GstCaps * gst_caps_ref (GstCaps* caps);
GstCaps * gst_caps_copy (const GstCaps * caps);
GstCaps * gst_caps_make_writable (GstCaps *caps);
void gst_caps_unref (GstCaps* caps);
G_CONST_RETURN GstCaps * gst_static_caps_get (GstStaticCaps *static_caps);
/* manipulation */
void gst_caps_append (GstCaps *caps1,
GstCaps *caps2);
void gst_caps_append_structure (GstCaps *caps,
GstStructure *structure);
int gst_caps_get_size (const GstCaps *caps);
GstStructure * gst_caps_get_structure (const GstCaps *caps,
int index);
GstCaps * gst_caps_copy_nth (const GstCaps * caps, gint nth);
void gst_caps_set_simple (GstCaps *caps,
char *field, ...);
void gst_caps_set_simple_valist (GstCaps *caps,
char *field,
va_list varargs);
/* tests */
gboolean gst_caps_is_any (const GstCaps *caps);
gboolean gst_caps_is_empty (const GstCaps *caps);
gboolean gst_caps_is_fixed (const GstCaps *caps);
gboolean gst_caps_is_always_compatible (const GstCaps *caps1,
const GstCaps *caps2);
gboolean gst_caps_is_subset (const GstCaps *subset,
const GstCaps *superset);
gboolean gst_caps_is_equal (const GstCaps *caps1,
const GstCaps *caps2);
/* operations */
GstCaps * gst_caps_intersect (const GstCaps *caps1,
const GstCaps *caps2);
GstCaps * gst_caps_subtract (const GstCaps *minuend,
const GstCaps *subtrahend);
GstCaps * gst_caps_union (const GstCaps *caps1,
const GstCaps *caps2);
GstCaps * gst_caps_normalize (const GstCaps *caps);
gboolean gst_caps_do_simplify (GstCaps *caps);
#ifndef GST_DISABLE_LOADSAVE
xmlNodePtr gst_caps_save_thyself (const GstCaps *caps,
xmlNodePtr parent);
GstCaps * gst_caps_load_thyself (xmlNodePtr parent);
#endif
/* utility */
void gst_caps_replace (GstCaps **caps,
GstCaps *newcaps);
gchar * gst_caps_to_string (const GstCaps *caps);
GstCaps * gst_caps_from_string (const gchar *string);
G_END_DECLS
#endif /* __GST_CAPS_H__ */
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