| 1 | /* GStreamer |
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| 2 | * Copyright (C) 2006 Nokia <stefan.kost@nokia.com |
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| 3 | * |
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| 4 | * videoorientation.h: video flipping and centering interface |
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| 5 | * |
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| 6 | * This library is free software; you can redistribute it and/or |
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| 7 | * modify it under the terms of the GNU Library General Public |
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| 8 | * License as published by the Free Software Foundation; either |
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| 9 | * version 2 of the License, or (at your option) any later version. |
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| 10 | * |
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| 11 | * This library is distributed in the hope that it will be useful, |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 14 | * Library General Public License for more details. |
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| 15 | * |
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| 16 | * You should have received a copy of the GNU Library General Public |
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| 17 | * License along with this library; if not, write to the |
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| 18 | * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
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| 19 | * Boston, MA 02110-1301, USA. |
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| 20 | */ |
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| 21 | |
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| 22 | #ifndef __GST_VIDEO_ORIENTATION_H__ |
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| 23 | #define __GST_VIDEO_ORIENTATION_H__ |
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| 24 | |
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| 25 | #include <gst/gst.h> |
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| 26 | #include <gst/video/video-prelude.h> |
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| 27 | |
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| 28 | G_BEGIN_DECLS |
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| 29 | |
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| 30 | #define GST_TYPE_VIDEO_ORIENTATION \ |
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| 31 | (gst_video_orientation_get_type ()) |
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| 32 | #define GST_VIDEO_ORIENTATION(obj) \ |
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| 33 | (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VIDEO_ORIENTATION, GstVideoOrientation)) |
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| 34 | #define GST_IS_VIDEO_ORIENTATION(obj) \ |
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| 35 | (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VIDEO_ORIENTATION)) |
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| 36 | #define GST_VIDEO_ORIENTATION_GET_INTERFACE(inst) \ |
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| 37 | (G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_VIDEO_ORIENTATION, GstVideoOrientationInterface)) |
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| 38 | |
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| 39 | /** |
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| 40 | * GstVideoOrientation: |
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| 41 | * |
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| 42 | * Opaque #GstVideoOrientation data structure. |
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| 43 | */ |
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| 44 | typedef struct _GstVideoOrientation GstVideoOrientation; |
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| 45 | typedef struct _GstVideoOrientationInterface GstVideoOrientationInterface; |
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| 46 | |
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| 47 | /** |
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| 48 | * GstVideoOrientationInterface: |
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| 49 | * @iface: parent interface type. |
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| 50 | * @get_hflip: virtual method to get horizontal flipping state |
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| 51 | * @get_vflip: virtual method to get vertical flipping state |
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| 52 | * @get_hcenter: virtual method to get horizontal centering state |
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| 53 | * @get_vcenter: virtual method to get vertical centering state |
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| 54 | * @set_hflip: virtual method to set horizontal flipping state |
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| 55 | * @set_vflip: virtual method to set vertical flipping state |
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| 56 | * @set_hcenter: virtual method to set horizontal centering state |
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| 57 | * @set_vcenter: virtual method to set vertical centering state |
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| 58 | * |
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| 59 | * #GstVideoOrientationInterface interface. |
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| 60 | */ |
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| 61 | struct _GstVideoOrientationInterface { |
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| 62 | GTypeInterface iface; |
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| 63 | |
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| 64 | /* FIXME 0.11: fix awkward API? add some kind of get_supported flags thing |
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| 65 | * and then just return booleans/int from all vfuncs requiring the caller |
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| 66 | * to check the flags first */ |
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| 67 | |
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| 68 | /* virtual functions */ |
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| 69 | gboolean (* get_hflip) (GstVideoOrientation *video_orientation, gboolean *flip); |
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| 70 | gboolean (* get_vflip) (GstVideoOrientation *video_orientation, gboolean *flip); |
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| 71 | gboolean (* get_hcenter) (GstVideoOrientation *video_orientation, gint *center); |
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| 72 | gboolean (* get_vcenter) (GstVideoOrientation *video_orientation, gint *center); |
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| 73 | |
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| 74 | gboolean (* set_hflip) (GstVideoOrientation *video_orientation, gboolean flip); |
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| 75 | gboolean (* set_vflip) (GstVideoOrientation *video_orientation, gboolean flip); |
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| 76 | gboolean (* set_hcenter) (GstVideoOrientation *video_orientation, gint center); |
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| 77 | gboolean (* set_vcenter) (GstVideoOrientation *video_orientation, gint center); |
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| 78 | }; |
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| 79 | |
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| 80 | GST_VIDEO_API |
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| 81 | GType gst_video_orientation_get_type (void); |
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| 82 | |
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| 83 | /* virtual class function wrappers */ |
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| 84 | |
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| 85 | GST_VIDEO_API |
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| 86 | gboolean gst_video_orientation_get_hflip (GstVideoOrientation *video_orientation, gboolean *flip); |
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| 87 | |
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| 88 | GST_VIDEO_API |
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| 89 | gboolean gst_video_orientation_get_vflip (GstVideoOrientation *video_orientation, gboolean *flip); |
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| 90 | |
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| 91 | GST_VIDEO_API |
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| 92 | gboolean gst_video_orientation_get_hcenter (GstVideoOrientation *video_orientation, gint *center); |
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| 93 | |
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| 94 | GST_VIDEO_API |
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| 95 | gboolean gst_video_orientation_get_vcenter (GstVideoOrientation *video_orientation, gint *center); |
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| 96 | |
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| 97 | GST_VIDEO_API |
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| 98 | gboolean gst_video_orientation_set_hflip (GstVideoOrientation *video_orientation, gboolean flip); |
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| 99 | |
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| 100 | GST_VIDEO_API |
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| 101 | gboolean gst_video_orientation_set_vflip (GstVideoOrientation *video_orientation, gboolean flip); |
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| 102 | |
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| 103 | GST_VIDEO_API |
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| 104 | gboolean gst_video_orientation_set_hcenter (GstVideoOrientation *video_orientation, gint center); |
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| 105 | |
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| 106 | GST_VIDEO_API |
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| 107 | gboolean gst_video_orientation_set_vcenter (GstVideoOrientation *video_orientation, gint center); |
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| 108 | |
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| 109 | G_END_DECLS |
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| 110 | |
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| 111 | #endif /* __GST_VIDEO_ORIENTATION_H__ */ |
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| 112 | |
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