1/* GStreamer
2 * Copyright (C) <2015> Jan Schmidt <jan@centricular.com>
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., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20#ifndef __GST_VIDEO_MULTIVIEW_H__
21#define __GST_VIDEO_MULTIVIEW_H__
22
23#include <gst/gst.h>
24#include <gst/video/video-prelude.h>
25
26G_BEGIN_DECLS
27
28#define GST_TYPE_VIDEO_MULTIVIEW_FLAGSET (gst_video_multiview_flagset_get_type())
29GST_VIDEO_API
30GType gst_video_multiview_flagset_get_type (void);
31
32GST_VIDEO_API
33const gchar * gst_video_multiview_mode_to_caps_string (GstVideoMultiviewMode mview_mode);
34
35GST_VIDEO_API
36GstVideoMultiviewMode gst_video_multiview_mode_from_caps_string (const gchar * caps_mview_mode);
37
38GST_VIDEO_API
39const GValue *gst_video_multiview_get_mono_modes(void);
40
41GST_VIDEO_API
42const GValue *gst_video_multiview_get_unpacked_modes(void);
43
44GST_VIDEO_API
45const GValue *gst_video_multiview_get_doubled_height_modes(void);
46
47GST_VIDEO_API
48const GValue *gst_video_multiview_get_doubled_width_modes(void);
49
50GST_VIDEO_API
51const GValue *gst_video_multiview_get_doubled_size_modes(void);
52
53GST_VIDEO_API
54void gst_video_multiview_video_info_change_mode (GstVideoInfo *info,
55 GstVideoMultiviewMode out_mview_mode, GstVideoMultiviewFlags out_mview_flags);
56
57GST_VIDEO_API
58gboolean gst_video_multiview_guess_half_aspect (GstVideoMultiviewMode mv_mode,
59 guint width, guint height, guint par_n, guint par_d);
60
61
62#if 0 /* Place-holder for later MVC support */
63#define GST_VIDEO_MULTIVIEW_META_API_TYPE (gst_video_multiview_meta_api_get_type())
64#define GST_VIDEO_MULTIVIEW_META_INFO (gst_video_multiview_meta_get_info())
65
66typedef struct _GstVideoMultiviewMeta GstVideoMultiviewMeta;
67typedef struct _GstVideoMultiviewViewInfo GstVideoMultiviewViewInfo;
68
69GType gst_video_multiview_meta_api_get_type (void);
70const GstMetaInfo * gst_video_multiview_meta_get_info (void);
71
72GstVideoMultiviewMeta * gst_buffer_add_video_multiview_meta (GstBuffer *buffer, guint n_views);
73#define gst_buffer_get_video_multiview_meta(b) ((GstVideoMultiviewMeta *)gst_buffer_get_meta((b),GST_VIDEO_MULTIVIEW_META_API_TYPE))
74
75void gst_video_multiview_meta_set_n_views (GstVideoMultiviewMeta *mview_meta, guint n_views);
76
77typedef enum {
78 GST_VIDEO_MULTIVIEW_VIEW_UNKNOWN = 0,
79 GST_VIDEO_MULTIVIEW_VIEW_MONO = 1,
80 GST_VIDEO_MULTIVIEW_VIEW_LEFT = 2,
81 GST_VIDEO_MULTIVIEW_VIEW_RIGHT = 3
82} GstVideoMultiviewViewLabel;
83
84struct _GstVideoMultiviewViewInfo {
85 GstVideoMultiviewViewLabel view_label;
86
87 guint meta_id; /* id of the GstVideoMeta for this view */
88
89 /*< private >*/
90 gpointer _gst_reserved[GST_PADDING];
91};
92
93struct _GstVideoMultiviewMeta {
94 GstMeta meta;
95
96 guint n_views;
97 GstVideoMultiviewViewInfo *view_info;
98};
99#endif
100
101G_END_DECLS
102
103#endif
104