1 /* GStreamer - GParamSpecs for for some of our types

     2  * Copyright (C) 2007 Tim-Philipp Müller  <tim centricular net>

     3  *

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

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

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

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

     8  *

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

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

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

    12  * Library General Public License for more details.

    13  *

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

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

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

    17  * Boston, MA 02111-1307, USA.

    18  */

    19 

    20 #ifndef __GST_PARAMSPECS_H__

    21 #define __GST_PARAMSPECS_H__

    22 

    23 #include <gst/gstvalue.h>

    24 

    25 G_BEGIN_DECLS

    26 

    27 /* --- type macros --- */

    28 

    29 #define GST_TYPE_PARAM_FRACTION           (gst_param_spec_fraction_get_type ())

    30 #define GST_IS_PARAM_SPEC_FRACTION(pspec) (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), GST_TYPE_PARAM_FRACTION))

    31 #define GST_PARAM_SPEC_FRACTION(pspec)    (G_TYPE_CHECK_INSTANCE_CAST ((pspec), GST_TYPE_PARAM_FRACTION, GstParamSpecFraction))

    32 

    33 

    34 /* --- get_type functions --- */

    35 #ifdef __SYMBIAN32__

    36 IMPORT_C

    37 #endif

    38 

    39 

    40 GType  gst_param_spec_fraction_get_type (void);

    41 

    42 

    43 /* --- typedefs & structures --- */

    44 

    45 typedef struct _GstParamSpecFraction GstParamSpecFraction;

    46 

    47 /**

    48  * GstParamSpecFraction:

    49  * @parent_instance: super class

    50  * @min_num: minimal numerator

    51  * @min_den: minimal denominator

    52  * @max_num: maximal numerator

    53  * @max_den: maximal denominator

    54  * @def_num: default numerator

    55  * @def_den: default denominator

    56  *

    57  * A GParamSpec derived structure that contains the meta data for fractional

    58  * properties.

    59  */

    60 struct _GstParamSpecFraction {

    61   GParamSpec    parent_instance;

    62   

    63   gint          min_num, min_den;

    64   gint          max_num, max_den;

    65   gint          def_num, def_den;

    66 };

    67 

    68 

    69 /* --- GParamSpec prototypes --- */

    70 #ifdef __SYMBIAN32__

    71 IMPORT_C

    72 #endif

    73 

    74 

    75 GParamSpec  * gst_param_spec_fraction (const gchar * name,

    76                                        const gchar * nick,

    77                                        const gchar * blurb,

    78                                        gint min_num, gint min_denom,

    79                                        gint max_num, gint max_denom,

    80                                        gint default_num, gint default_denom,

    81                                        GParamFlags flags);

    82 

    83 G_END_DECLS

    84 

    85 #endif /* __GST_PARAMSPECS_H__ */

    86