| 1 | /* GStreamer |
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| 2 | * Copyright (C) <2015> Jan Schmidt <jan@centricular.com> |
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| 3 | * |
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| 4 | * This library is free software; you can redistribute it and/or |
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| 5 | * modify it under the terms of the GNU Library General Public |
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| 6 | * License as published by the Free Software Foundation; either |
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| 7 | * version 2 of the License, or (at your option) any later version. |
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| 8 | * |
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| 9 | * This library is distributed in the hope that it will be useful, |
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| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | * Library General Public License for more details. |
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| 13 | * |
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| 14 | * You should have received a copy of the GNU Library General Public |
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| 15 | * License along with this library; if not, write to the |
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| 16 | * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
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| 17 | * Boston, MA 02110-1301, USA. |
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| 18 | */ |
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| 19 | |
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| 20 | #ifndef __GST_VIDEO_MULTIVIEW_H__ |
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| 21 | #define __GST_VIDEO_MULTIVIEW_H__ |
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| 22 | |
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| 23 | #include <gst/gst.h> |
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| 24 | #include <gst/video/video-prelude.h> |
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| 25 | |
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| 26 | G_BEGIN_DECLS |
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| 27 | |
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| 28 | /** |
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| 29 | * GstVideoMultiviewFlagsSet: |
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| 30 | * |
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| 31 | * See #GstVideoMultiviewFlags. |
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| 32 | */ |
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| 33 | #define GST_TYPE_VIDEO_MULTIVIEW_FLAGSET (gst_video_multiview_flagset_get_type()) |
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| 34 | GST_VIDEO_API |
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| 35 | GType gst_video_multiview_flagset_get_type (void); |
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| 36 | |
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| 37 | GST_VIDEO_API |
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| 38 | const gchar * gst_video_multiview_mode_to_caps_string (GstVideoMultiviewMode mview_mode); |
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| 39 | |
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| 40 | GST_VIDEO_API |
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| 41 | GstVideoMultiviewMode gst_video_multiview_mode_from_caps_string (const gchar * caps_mview_mode); |
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| 42 | |
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| 43 | GST_VIDEO_API |
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| 44 | const GValue *gst_video_multiview_get_mono_modes(void); |
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| 45 | |
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| 46 | GST_VIDEO_API |
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| 47 | const GValue *gst_video_multiview_get_unpacked_modes(void); |
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| 48 | |
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| 49 | GST_VIDEO_API |
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| 50 | const GValue *gst_video_multiview_get_doubled_height_modes(void); |
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| 51 | |
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| 52 | GST_VIDEO_API |
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| 53 | const GValue *gst_video_multiview_get_doubled_width_modes(void); |
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| 54 | |
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| 55 | GST_VIDEO_API |
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| 56 | const GValue *gst_video_multiview_get_doubled_size_modes(void); |
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| 57 | |
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| 58 | GST_VIDEO_API |
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| 59 | void gst_video_multiview_video_info_change_mode (GstVideoInfo *info, |
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| 60 | GstVideoMultiviewMode out_mview_mode, GstVideoMultiviewFlags out_mview_flags); |
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| 61 | |
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| 62 | GST_VIDEO_API |
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| 63 | gboolean gst_video_multiview_guess_half_aspect (GstVideoMultiviewMode mv_mode, |
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| 64 | guint width, guint height, guint par_n, guint par_d); |
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| 65 | |
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| 66 | |
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| 67 | #if 0 /* Place-holder for later MVC support */ |
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| 68 | #define GST_VIDEO_MULTIVIEW_META_API_TYPE (gst_video_multiview_meta_api_get_type()) |
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| 69 | #define GST_VIDEO_MULTIVIEW_META_INFO (gst_video_multiview_meta_get_info()) |
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| 70 | |
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| 71 | typedef struct _GstVideoMultiviewMeta GstVideoMultiviewMeta; |
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| 72 | typedef struct _GstVideoMultiviewViewInfo GstVideoMultiviewViewInfo; |
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| 73 | |
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| 74 | GType gst_video_multiview_meta_api_get_type (void); |
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| 75 | const GstMetaInfo * gst_video_multiview_meta_get_info (void); |
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| 76 | |
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| 77 | GstVideoMultiviewMeta * gst_buffer_add_video_multiview_meta (GstBuffer *buffer, guint n_views); |
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| 78 | #define gst_buffer_get_video_multiview_meta(b) ((GstVideoMultiviewMeta *)gst_buffer_get_meta((b),GST_VIDEO_MULTIVIEW_META_API_TYPE)) |
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| 79 | |
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| 80 | void gst_video_multiview_meta_set_n_views (GstVideoMultiviewMeta *mview_meta, guint n_views); |
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| 81 | |
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| 82 | typedef enum { |
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| 83 | GST_VIDEO_MULTIVIEW_VIEW_UNKNOWN = 0, |
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| 84 | GST_VIDEO_MULTIVIEW_VIEW_MONO = 1, |
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| 85 | GST_VIDEO_MULTIVIEW_VIEW_LEFT = 2, |
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| 86 | GST_VIDEO_MULTIVIEW_VIEW_RIGHT = 3 |
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| 87 | } GstVideoMultiviewViewLabel; |
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| 88 | |
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| 89 | struct _GstVideoMultiviewViewInfo { |
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| 90 | GstVideoMultiviewViewLabel view_label; |
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| 91 | |
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| 92 | guint meta_id; /* id of the GstVideoMeta for this view */ |
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| 93 | |
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| 94 | /*< private >*/ |
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| 95 | gpointer _gst_reserved[GST_PADDING]; |
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| 96 | }; |
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| 97 | |
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| 98 | struct _GstVideoMultiviewMeta { |
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| 99 | GstMeta meta; |
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| 100 | |
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| 101 | guint n_views; |
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| 102 | GstVideoMultiviewViewInfo *view_info; |
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| 103 | }; |
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| 104 | #endif |
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| 105 | |
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| 106 | G_END_DECLS |
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| 107 | |
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| 108 | #endif |
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| 109 | |
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