1 /* GStreamer

     2  * Copyright (C) 2006 Nokia <stefan.kost@nokia.com

     3  *

     4  * videoorientation.h: video flipping and centering interface

     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_VIDEO_ORIENTATION_H__

    23 #define __GST_VIDEO_ORIENTATION_H__

    24 

    25 #include <gst/gst.h>

    26 #include <gst/interfaces/interfaces-enumtypes.h>

    27 

    28 G_BEGIN_DECLS

    29 

    30 #define GST_TYPE_VIDEO_ORIENTATION \

    31   (gst_video_orientation_get_type ())

    32 #define GST_VIDEO_ORIENTATION(obj) \

    33   (GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VIDEO_ORIENTATION, GstVideoOrientation))

    34 #define GST_IS_VIDEO_ORIENTATION(obj) \

    35   (GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VIDEO_ORIENTATION))

    36 #define GST_VIDEO_ORIENTATION_GET_IFACE(inst) \

    37   (G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_VIDEO_ORIENTATION, GstVideoOrientationInterface))

    38 

    39 /**

    40  * GstVideoOrientation:

    41  *

    42  * Opaque #GstVideoOrientation data structure.

    43  */

    44 typedef struct _GstVideoOrientation GstVideoOrientation;

    45 

    46 /**

    47  * GstVideoOrientationInterface:

    48  * @parent: parent interface type.

    49  * @get_hflip: virtual method to get horizontal flipping state

    50  * @get_vflip: virtual method to get vertical flipping state

    51  * @get_hcenter: virtual method to get horizontal centering state

    52  * @get_vcenter: virtual method to get vertical centering state

    53  * @set_hflip: virtual method to set horizontal flipping state

    54  * @set_vflip: virtual method to set vertical flipping state

    55  * @set_hcenter: virtual method to set horizontal centering state

    56  * @set_vcenter: virtual method to set vertical centering state

    57  *

    58  * #GstVideoOrientationInterface interface.

    59  */

    60 typedef struct _GstVideoOrientationInterface {

    61   GTypeInterface parent;

    62 

    63   /* virtual functions */

    64   gboolean (* get_hflip)   (GstVideoOrientation *video_orientation, gboolean *flip);

    65   gboolean (* get_vflip)   (GstVideoOrientation *video_orientation, gboolean *flip);

    66   gboolean (* get_hcenter) (GstVideoOrientation *video_orientation, gint *center);

    67   gboolean (* get_vcenter) (GstVideoOrientation *video_orientation, gint *center);

    68 

    69   gboolean (* set_hflip)   (GstVideoOrientation *video_orientation, gboolean flip);

    70   gboolean (* set_vflip)   (GstVideoOrientation *video_orientation, gboolean flip);

    71   gboolean (* set_hcenter) (GstVideoOrientation *video_orientation, gint center);

    72   gboolean (* set_vcenter) (GstVideoOrientation *video_orientation, gint center);

    73 

    74   /*< private > */

    75   gpointer _gst_reserved[GST_PADDING];

    76 } GstVideoOrientationInterface;

    77 #ifdef __SYMBIAN32__

    78 IMPORT_C

    79 #endif

    80 

    81 

    82 GType           gst_video_orientation_get_type              (void);

    83 

    84 /* virtual class function wrappers */

    85 #ifdef __SYMBIAN32__

    86 IMPORT_C

    87 #endif

    88 

    89 gboolean gst_video_orientation_get_hflip (GstVideoOrientation *video_orientation, gboolean *flip);

    90 #ifdef __SYMBIAN32__

    91 IMPORT_C

    92 #endif

    93 

    94 gboolean gst_video_orientation_get_vflip (GstVideoOrientation *video_orientation, gboolean *flip);

    95 #ifdef __SYMBIAN32__

    96 IMPORT_C

    97 #endif

    98 

    99 gboolean gst_video_orientation_get_hcenter (GstVideoOrientation *video_orientation, gint *center);

   100 #ifdef __SYMBIAN32__

   101 IMPORT_C

   102 #endif

   103 

   104 gboolean gst_video_orientation_get_vcenter (GstVideoOrientation *video_orientation, gint *center);

   105 #ifdef __SYMBIAN32__

   106 IMPORT_C

   107 #endif

   108 

   109 

   110 gboolean gst_video_orientation_set_hflip (GstVideoOrientation *video_orientation, gboolean flip);

   111 #ifdef __SYMBIAN32__

   112 IMPORT_C

   113 #endif

   114 

   115 gboolean gst_video_orientation_set_vflip (GstVideoOrientation *video_orientation, gboolean flip);

   116 #ifdef __SYMBIAN32__

   117 IMPORT_C

   118 #endif

   119 

   120 gboolean gst_video_orientation_set_hcenter (GstVideoOrientation *video_orientation, gint center);

   121 #ifdef __SYMBIAN32__

   122 IMPORT_C

   123 #endif

   124 

   125 gboolean gst_video_orientation_set_vcenter (GstVideoOrientation *video_orientation, gint center);

   126 

   127 G_END_DECLS

   128 

   129 #endif /* __GST_VIDEO_ORIENTATION_H__ */