/usr/include/gstreamer-1.0/gst/video/video-info.h is in libgstreamer-plugins-base1.0-dev 1.2.3-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 | /* GStreamer
* Copyright (C) <2011> Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_VIDEO_INFO_H__
#define __GST_VIDEO_INFO_H__
#include <gst/gst.h>
#include <gst/video/video-format.h>
#include <gst/video/video-color.h>
G_BEGIN_DECLS
#include <gst/video/video-enumtypes.h>
typedef struct _GstVideoInfo GstVideoInfo;
/**
* GstVideoInterlaceMode:
* @GST_VIDEO_INTERLACE_MODE_PROGRESSIVE: all frames are progressive
* @GST_VIDEO_INTERLACE_MODE_INTERLEAVED: 2 fields are interleaved in one video
* frame. Extra buffer flags describe the field order.
* @GST_VIDEO_INTERLACE_MODE_MIXED: frames contains both interlaced and
* progressive video, the buffer flags describe the frame and fields.
* @GST_VIDEO_INTERLACE_MODE_FIELDS: 2 fields are stored in one buffer, use the
* frame ID to get access to the required field. For multiview (the
* 'views' property > 1) the fields of view N can be found at frame ID
* (N * 2) and (N * 2) + 1.
* Each field has only half the amount of lines as noted in the
* height property. This mode requires multiple GstVideoMeta metadata
* to describe the fields.
*
* The possible values of the #GstVideoInterlaceMode describing the interlace
* mode of the stream.
*/
typedef enum {
GST_VIDEO_INTERLACE_MODE_PROGRESSIVE = 0,
GST_VIDEO_INTERLACE_MODE_INTERLEAVED,
GST_VIDEO_INTERLACE_MODE_MIXED,
GST_VIDEO_INTERLACE_MODE_FIELDS
} GstVideoInterlaceMode;
/**
* GstVideoFlags:
* @GST_VIDEO_FLAG_NONE: no flags
* @GST_VIDEO_FLAG_VARIABLE_FPS: a variable fps is selected, fps_n and fps_d
* denote the maximum fps of the video
* @GST_VIDEO_FLAG_PREMULTIPLIED_ALPHA: Each color has been scaled by the alpha
* value.
*
* Extra video flags
*/
typedef enum {
GST_VIDEO_FLAG_NONE = 0,
GST_VIDEO_FLAG_VARIABLE_FPS = (1 << 0),
GST_VIDEO_FLAG_PREMULTIPLIED_ALPHA = (1 << 1)
} GstVideoFlags;
/**
* GstVideoInfo:
* @finfo: the format info of the video
* @interlace_mode: the interlace mode
* @flags: additional video flags
* @width: the width of the video
* @height: the height of the video
* @views: the number of views for multiview video
* @size: the default size of one frame
* @chroma_site: a #GstVideoChromaSite.
* @colorimetry: the colorimetry info
* @par_n: the pixel-aspect-ratio numerator
* @par_d: the pixel-aspect-ratio demnominator
* @fps_n: the framerate numerator
* @fps_d: the framerate demnominator
* @offset: offsets of the planes
* @stride: strides of the planes
*
* Information describing image properties. This information can be filled
* in from GstCaps with gst_video_info_from_caps(). The information is also used
* to store the specific video info when mapping a video frame with
* gst_video_frame_map().
*
* Use the provided macros to access the info in this structure.
*/
struct _GstVideoInfo {
const GstVideoFormatInfo *finfo;
GstVideoInterlaceMode interlace_mode;
GstVideoFlags flags;
gint width;
gint height;
gsize size;
gint views;
GstVideoChromaSite chroma_site;
GstVideoColorimetry colorimetry;
gint par_n;
gint par_d;
gint fps_n;
gint fps_d;
gsize offset[GST_VIDEO_MAX_PLANES];
gint stride[GST_VIDEO_MAX_PLANES];
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
/* general info */
#define GST_VIDEO_INFO_FORMAT(i) (GST_VIDEO_FORMAT_INFO_FORMAT((i)->finfo))
#define GST_VIDEO_INFO_NAME(i) (GST_VIDEO_FORMAT_INFO_NAME((i)->finfo))
#define GST_VIDEO_INFO_IS_YUV(i) (GST_VIDEO_FORMAT_INFO_IS_YUV((i)->finfo))
#define GST_VIDEO_INFO_IS_RGB(i) (GST_VIDEO_FORMAT_INFO_IS_RGB((i)->finfo))
#define GST_VIDEO_INFO_IS_GRAY(i) (GST_VIDEO_FORMAT_INFO_IS_GRAY((i)->finfo))
#define GST_VIDEO_INFO_HAS_ALPHA(i) (GST_VIDEO_FORMAT_INFO_HAS_ALPHA((i)->finfo))
#define GST_VIDEO_INFO_INTERLACE_MODE(i) ((i)->interlace_mode)
#define GST_VIDEO_INFO_IS_INTERLACED(i) ((i)->interlace_mode != GST_VIDEO_INTERLACE_MODE_PROGRESSIVE)
#define GST_VIDEO_INFO_FLAGS(i) ((i)->flags)
#define GST_VIDEO_INFO_WIDTH(i) ((i)->width)
#define GST_VIDEO_INFO_HEIGHT(i) ((i)->height)
#define GST_VIDEO_INFO_SIZE(i) ((i)->size)
#define GST_VIDEO_INFO_VIEWS(i) ((i)->views)
#define GST_VIDEO_INFO_PAR_N(i) ((i)->par_n)
#define GST_VIDEO_INFO_PAR_D(i) ((i)->par_d)
#define GST_VIDEO_INFO_FPS_N(i) ((i)->fps_n)
#define GST_VIDEO_INFO_FPS_D(i) ((i)->fps_d)
/* dealing with GstVideoInfo flags */
#define GST_VIDEO_INFO_FLAG_IS_SET(i,flag) ((GST_VIDEO_INFO_FLAGS(i) & (flag)) == (flag))
#define GST_VIDEO_INFO_FLAG_SET(i,flag) (GST_VIDEO_INFO_FLAGS(i) |= (flag))
#define GST_VIDEO_INFO_FLAG_UNSET(i,flag) (GST_VIDEO_INFO_FLAGS(i) &= ~(flag))
/* dealing with planes */
#define GST_VIDEO_INFO_N_PLANES(i) (GST_VIDEO_FORMAT_INFO_N_PLANES((i)->finfo))
#define GST_VIDEO_INFO_PLANE_OFFSET(i,p) ((i)->offset[p])
#define GST_VIDEO_INFO_PLANE_STRIDE(i,p) ((i)->stride[p])
/* dealing with components */
#define GST_VIDEO_INFO_N_COMPONENTS(i) GST_VIDEO_FORMAT_INFO_N_COMPONENTS((i)->finfo)
#define GST_VIDEO_INFO_COMP_DEPTH(i,c) GST_VIDEO_FORMAT_INFO_DEPTH((i)->finfo,(c))
#define GST_VIDEO_INFO_COMP_DATA(i,d,c) GST_VIDEO_FORMAT_INFO_DATA((i)->finfo,d,(c))
#define GST_VIDEO_INFO_COMP_OFFSET(i,c) GST_VIDEO_FORMAT_INFO_OFFSET((i)->finfo,(i)->offset,(c))
#define GST_VIDEO_INFO_COMP_STRIDE(i,c) GST_VIDEO_FORMAT_INFO_STRIDE((i)->finfo,(i)->stride,(c))
#define GST_VIDEO_INFO_COMP_WIDTH(i,c) GST_VIDEO_FORMAT_INFO_SCALE_WIDTH((i)->finfo,(c),(i)->width)
#define GST_VIDEO_INFO_COMP_HEIGHT(i,c) GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT((i)->finfo,(c),(i)->height)
#define GST_VIDEO_INFO_COMP_PLANE(i,c) GST_VIDEO_FORMAT_INFO_PLANE((i)->finfo,(c))
#define GST_VIDEO_INFO_COMP_PSTRIDE(i,c) GST_VIDEO_FORMAT_INFO_PSTRIDE((i)->finfo,(c))
#define GST_VIDEO_INFO_COMP_POFFSET(i,c) GST_VIDEO_FORMAT_INFO_POFFSET((i)->finfo,(c))
void gst_video_info_init (GstVideoInfo *info);
void gst_video_info_set_format (GstVideoInfo *info, GstVideoFormat format,
guint width, guint height);
gboolean gst_video_info_from_caps (GstVideoInfo *info, const GstCaps * caps);
GstCaps * gst_video_info_to_caps (GstVideoInfo *info);
gboolean gst_video_info_convert (GstVideoInfo *info,
GstFormat src_format,
gint64 src_value,
GstFormat dest_format,
gint64 *dest_value);
gboolean gst_video_info_is_equal (const GstVideoInfo *info,
const GstVideoInfo *other);
#include <gst/video/video.h>
void gst_video_info_align (GstVideoInfo * info, GstVideoAlignment * align);
G_END_DECLS
#endif /* __GST_VIDEO_INFO_H__ */
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