1 /* GStreamer

     2  * Copyright (C) 2005 Stefan Kost <ensonic@users.sf.net>

     3  *

     4  * gstchildproxy.h: interface header for multi child elements

     5  *

     6  * This library is free software; you can redistribute it and/or

     7  * modify it under the terms of the GNU Library General Public

     8  * License as published by the Free Software Foundation; either

     9  * version 2 of the License, or (at your option) any later version.

    10  *

    11  * This library is distributed in the hope that it will be useful,

    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    14  * Library General Public License for more details.

    15  *

    16  * You should have received a copy of the GNU Library General Public

    17  * License along with this library; if not, write to the

    18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

    19  * Boston, MA 02111-1307, USA.

    20  */

    21 

    22 #ifndef __GST_CHILD_PROXY_H__

    23 #define __GST_CHILD_PROXY_H__

    24 

    25 #include <glib-object.h>

    26 #include <gst/gst.h>

    27 

    28 G_BEGIN_DECLS

    29 

    30 

    31 #define GST_TYPE_CHILD_PROXY			(gst_child_proxy_get_type ())

    32 #define GST_CHILD_PROXY(obj)			(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_CHILD_PROXY, GstChildProxy))

    33 #define GST_IS_CHILD_PROXY(obj)	                (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_CHILD_PROXY))

    34 #define GST_CHILD_PROXY_GET_INTERFACE(obj)	(G_TYPE_INSTANCE_GET_INTERFACE ((obj), GST_TYPE_CHILD_PROXY, GstChildProxyInterface))

    35 

    36 /**

    37  * GstChildProxy:

    38  *

    39  * Opaque #GstChildProxy data structure.

    40  */

    41 typedef struct _GstChildProxy GstChildProxy;    /* dummy object */

    42 typedef struct _GstChildProxyInterface GstChildProxyInterface;

    43 

    44 /**

    45  * GstChildProxyInterface:

    46  * @parent: parent interface type.

    47  * @get_child_by_index: virtual method to fetch the child

    48  * @get_children_count: virtual method to get the children count

    49  *

    50  * #GstChildProxyInterface interface.

    51  */

    52 struct _GstChildProxyInterface

    53 {

    54   GTypeInterface parent;

    55 

    56   /* methods */

    57   GstObject *(*get_child_by_index) (GstChildProxy * parent, guint index);

    58   guint (*get_children_count) (GstChildProxy * parent);

    59   /*< private > */

    60   /* signals */

    61   void (*child_added) (GstChildProxy * parent, GstObject * child);

    62   void (*child_removed) (GstChildProxy * parent, GstObject * child);

    63 

    64   /*< private > */

    65   gpointer _gst_reserved[GST_PADDING];

    66 };

    67 #ifdef __SYMBIAN32__

    68 IMPORT_C

    69 #endif

    70 

    71 

    72 GType gst_child_proxy_get_type (void);

    73 #ifdef __SYMBIAN32__

    74 IMPORT_C

    75 #endif

    76 

    77 

    78 GstObject *gst_child_proxy_get_child_by_name (GstChildProxy * parent, const gchar * name);

    79 #ifdef __SYMBIAN32__

    80 IMPORT_C

    81 #endif

    82 

    83 GstObject *gst_child_proxy_get_child_by_index (GstChildProxy * parent, guint index);

    84 #ifdef __SYMBIAN32__

    85 IMPORT_C

    86 #endif

    87 

    88 guint gst_child_proxy_get_children_count (GstChildProxy * parent);

    89 #ifdef __SYMBIAN32__

    90 IMPORT_C

    91 #endif

    92 

    93 

    94 gboolean gst_child_proxy_lookup (GstObject *object, const gchar *name,

    95     GstObject **target, GParamSpec **pspec);

    96 #ifdef __SYMBIAN32__

    97 IMPORT_C

    98 #endif

    99 

   100 void gst_child_proxy_get_property (GstObject * object, const gchar *name, GValue *value);

   101 #ifdef __SYMBIAN32__

   102 IMPORT_C

   103 #endif

   104 

   105 void gst_child_proxy_get_valist (GstObject * object,

   106     const gchar * first_property_name, va_list var_args);

   107 #ifdef __SYMBIAN32__

   108 IMPORT_C

   109 #endif

   110 

   111 void gst_child_proxy_get (GstObject * object, const gchar * first_property_name,

   112     ...) G_GNUC_NULL_TERMINATED;

   113 #ifdef __SYMBIAN32__

   114 IMPORT_C

   115 #endif

   116 

   117 void gst_child_proxy_set_property (GstObject * object, const gchar *name, const GValue *value);

   118 #ifdef __SYMBIAN32__

   119 IMPORT_C

   120 #endif

   121 

   122 void gst_child_proxy_set_valist (GstObject* object,

   123     const gchar * first_property_name, va_list var_args);

   124 #ifdef __SYMBIAN32__

   125 IMPORT_C

   126 #endif

   127 

   128 void gst_child_proxy_set (GstObject * object, const gchar * first_property_name,

   129     ...) G_GNUC_NULL_TERMINATED;

   130 #ifdef __SYMBIAN32__

   131 IMPORT_C

   132 #endif

   133 

   134 void gst_child_proxy_child_added (GstObject * object, GstObject *  child);

   135 #ifdef __SYMBIAN32__

   136 IMPORT_C

   137 #endif

   138 

   139 void gst_child_proxy_child_removed (GstObject * object, GstObject *  child);

   140 

   141 G_END_DECLS

   142 

   143 #endif /* __GST_CHILD_PROXY_H__ */