mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-05 00:50:21 +00:00
124 lines
4.3 KiB
C
124 lines
4.3 KiB
C
/* 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
|
|
* 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 <parser.h> // NOTE: this is xml-config's fault
|
|
|
|
// Include compatability defines: if libxml hasn't already defined these,
|
|
// we have an old version 1.x
|
|
#ifndef xmlChildrenNode
|
|
#define xmlChildrenNode childs
|
|
#define xmlRootNode root
|
|
#endif
|
|
|
|
#include <gst/gstprops.h>
|
|
|
|
typedef struct _GstCaps GstCaps;
|
|
|
|
#define GST_CAPS(caps) \
|
|
((GstCaps *)(caps))
|
|
|
|
#define GST_CAPS_LOCK(caps) (g_mutex_lock(GST_CAPS(caps)->lock))
|
|
#define GST_CAPS_TRYLOCK(caps) (g_mutex_trylock(GST_CAPS(caps)->lock))
|
|
#define GST_CAPS_UNLOCK(caps) (g_mutex_unlock(GST_CAPS(caps)->lock))
|
|
|
|
struct _GstCaps {
|
|
gchar *name; /* the name of this caps */
|
|
guint16 id; /* type id (major type) */
|
|
|
|
guint refcount;
|
|
GMutex *lock; /* global lock for this capability */
|
|
|
|
GstProps *properties; /* properties for this capability */
|
|
|
|
GstCaps *next;
|
|
};
|
|
|
|
#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);
|
|
|
|
GstCaps* gst_caps_new (const gchar *name, const gchar *mime, GstProps *props);
|
|
|
|
GstCaps* gst_caps_unref (GstCaps *caps);
|
|
GstCaps* gst_caps_ref (GstCaps *caps);
|
|
void gst_caps_destroy (GstCaps *caps);
|
|
|
|
GstCaps* gst_caps_copy (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_int(caps, name) gst_props_get_int ((caps)->properties, name)
|
|
#define gst_caps_get_float(caps, name) gst_props_get_float ((caps)->properties, name)
|
|
#define gst_caps_get_fourcc_int(caps, name) gst_props_get_fourcc_int ((caps)->properties, name)
|
|
#define gst_caps_get_boolean(caps, name) gst_props_get_boolean ((caps)->properties, name)
|
|
#define gst_caps_get_string(caps, name) gst_props_get_string ((caps)->properties, name)
|
|
|
|
GstCaps* gst_caps_get_by_name (GstCaps *caps, const gchar *name);
|
|
|
|
GstCaps* gst_caps_chain (GstCaps *caps, ...);
|
|
GstCaps* gst_caps_append (GstCaps *caps, GstCaps *capstoadd);
|
|
GstCaps* gst_caps_prepend (GstCaps *caps, GstCaps *capstoadd);
|
|
|
|
gboolean gst_caps_check_compatibility (GstCaps *fromcaps, GstCaps *tocaps);
|
|
|
|
xmlNodePtr gst_caps_save_thyself (GstCaps *caps, xmlNodePtr parent);
|
|
GstCaps* gst_caps_load_thyself (xmlNodePtr parent);
|
|
|
|
#endif /* __GST_CAPS_H__ */
|