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95cd8dc4f1
Add a utility function that, given a video size and a packed stereoscopic mode, attempts to guess if the video is packed at half resolution per view or not, since very few videos provide the information.
86 lines
3.1 KiB
C
86 lines
3.1 KiB
C
/* GStreamer
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* Copyright (C) <2015> Jan Schmidt <jan@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_VIDEO_MULTIVIEW_H__
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#define __GST_VIDEO_MULTIVIEW_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_VIDEO_MULTIVIEW_FLAGSET (gst_video_multiview_flagset_get_type())
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GType gst_video_multiview_flagset_get_type (void);
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const gchar * gst_video_multiview_mode_to_caps_string (GstVideoMultiviewMode mview_mode);
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GstVideoMultiviewMode gst_video_multiview_mode_from_caps_string (const gchar * caps_mview_mode);
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const GValue *gst_video_multiview_get_mono_modes(void);
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const GValue *gst_video_multiview_get_unpacked_modes(void);
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const GValue *gst_video_multiview_get_doubled_height_modes(void);
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const GValue *gst_video_multiview_get_doubled_width_modes(void);
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const GValue *gst_video_multiview_get_doubled_size_modes(void);
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void gst_video_multiview_video_info_change_mode (GstVideoInfo *info,
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GstVideoMultiviewMode out_mview_mode, GstVideoMultiviewFlags out_mview_flags);
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gboolean gst_video_multiview_guess_half_aspect (GstVideoMultiviewMode mv_mode,
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guint width, guint height, guint par_n, guint par_d);
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#if 0 /* Place-holder for later MVC support */
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#define GST_VIDEO_MULTIVIEW_META_API_TYPE (gst_video_multiview_meta_api_get_type())
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#define GST_VIDEO_MULTIVIEW_META_INFO (gst_video_multiview_meta_get_info())
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typedef struct _GstVideoMultiviewMeta GstVideoMultiviewMeta;
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typedef struct _GstVideoMultiviewViewInfo GstVideoMultiviewViewInfo;
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GType gst_video_multiview_meta_api_get_type (void);
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const GstMetaInfo * gst_video_multiview_meta_get_info (void);
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GstVideoMultiviewMeta * gst_buffer_add_video_multiview_meta (GstBuffer *buffer, guint n_views);
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#define gst_buffer_get_video_multiview_meta(b) ((GstVideoMultiviewMeta *)gst_buffer_get_meta((b),GST_VIDEO_MULTIVIEW_META_API_TYPE))
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void gst_video_multiview_meta_set_n_views (GstVideoMultiviewMeta *mview_meta, guint n_views);
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typedef enum {
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GST_VIDEO_MULTIVIEW_VIEW_UNKNOWN = 0,
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GST_VIDEO_MULTIVIEW_VIEW_MONO = 1,
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GST_VIDEO_MULTIVIEW_VIEW_LEFT = 2,
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GST_VIDEO_MULTIVIEW_VIEW_RIGHT = 3
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} GstVideoMultiviewViewLabel;
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struct _GstVideoMultiviewViewInfo {
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GstVideoMultiviewViewLabel view_label;
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guint meta_id; /* id of the GstVideoMeta for this view */
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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struct _GstVideoMultiviewMeta {
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GstMeta meta;
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guint n_views;
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GstVideoMultiviewViewInfo *view_info;
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};
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#endif
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G_END_DECLS
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#endif
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