~sipe-collab/sipe-collab/gstreamer-plugins-base
» Revision
83
: docs/libs/html/gst-plugins-base-libs-gstvideometa.html
« back to all changes in this revision
Viewing changes to docs/libs/html/gst-plugins-base-libs-gstvideometa.html
- browse files at revision 83
- compare with another revision
- download diff
- download tarball
- view history from revision 83
- Committer: Sebastian Dröge
- Date: 2014-04-19 13:47:47 UTC
- mfrom: (1.1.23)
- Revision ID: git-v1:d06393f82dba0d5f13ec2e66275d75cf8178fe5c
Merge tag 'upstream/1.2.4'
Upstream version 1.2.4
Upstream version 1.2.4
- files added:
- docs/libs/html/left-insensitive.png
- files modified:
- ChangeLog
added
removed
docs/libs/html/gst-plugins-base-libs-gstvideometa.html
2
2
<html>
3
3
<head>
4
4
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
5
<title>gstvideometa</title>
5
<title>GStreamer Base Plugins 1.0 Library Reference Manual: gstvideometa</title>
6
6
<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
7
7
<link rel="home" href="index.html" title="GStreamer Base Plugins 1.0 Library Reference Manual">
8
8
<link rel="up" href="gstreamer-video.html" title="Video Library">
9
9
<link rel="prev" href="gst-plugins-base-libs-gstvideo.html" title="gstvideo">
10
10
<link rel="next" href="gst-plugins-base-libs-gstvideooverlaycomposition.html" title="gstvideooverlaycomposition">
11
<meta name="generator" content="GTK-Doc V1.19 (XML mode)">
11
<meta name="generator" content="GTK-Doc V1.20 (XML mode)">
12
12
<link rel="stylesheet" href="style.css" type="text/css">
13
13
</head>
14
14
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
15
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2">
16
<tr valign="middle">
17
<td><a accesskey="p" href="gst-plugins-base-libs-gstvideo.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
18
<td><a accesskey="u" href="gstreamer-video.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td>
19
<td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td>
20
<th width="100%" align="center">GStreamer Base Plugins 1.0 Library Reference Manual</th>
21
<td><a accesskey="n" href="gst-plugins-base-libs-gstvideooverlaycomposition.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
22
</tr>
23
<tr><td colspan="5" class="shortcuts">
24
<a href="#gst-plugins-base-libs-gstvideometa.synopsis" class="shortcut">Top</a>
25
|
26
<a href="#gst-plugins-base-libs-gstvideometa.description" class="shortcut">Description</a>
27
</td></tr>
28
</table>
15
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="10"><tr valign="middle">
16
<td width="100%" align="left" class="shortcuts">
17
<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span>
18
<a href="#gst-plugins-base-libs-gstvideometa.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span>
19
<a href="#gst-plugins-base-libs-gstvideometa.object-hierarchy" class="shortcut">Object Hierarchy</a></span>
20
</td>
21
<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
22
<td><a accesskey="u" href="gstreamer-video.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
23
<td><a accesskey="p" href="gst-plugins-base-libs-gstvideo.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
24
<td><a accesskey="n" href="gst-plugins-base-libs-gstvideooverlaycomposition.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
25
</tr></table>
29
26
<div class="refentry">
30
27
<a name="gst-plugins-base-libs-gstvideometa"></a><div class="titlepage"></div>
31
28
<div class="refnamediv"><table width="100%"><tr>
33
30
<h2><span class="refentrytitle"><a name="gst-plugins-base-libs-gstvideometa.top_of_page"></a>gstvideometa</span></h2>
34
31
<p>gstvideometa</p>
35
32
</td>
36
<td valign="top" align="right"></td>
33
<td class="gallery_image" valign="top" align="right"></td>
37
34
</tr></table></div>
38
<div class="refsynopsisdiv">
39
<a name="gst-plugins-base-libs-gstvideometa.synopsis"></a><h2>Synopsis</h2>
40
<pre class="synopsis">
41
#include <gst/video/gstvideometa.h>
42
43
struct <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta">GstVideoMeta</a>;
44
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMetaTransform" title="GstVideoMetaTransform">GstVideoMetaTransform</a>;
45
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-video-meta-map" title="gst_video_meta_map ()">gst_video_meta_map</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> *meta</code></em>,
46
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> plane</code></em>,
47
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapInfo"><span class="type">GstMapInfo</span></a> *info</code></em>,
48
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> *data</code></em>,
49
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *stride</code></em>,
50
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapFlags"><span class="type">GstMapFlags</span></a> flags</code></em>);
51
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-video-meta-unmap" title="gst_video_meta_unmap ()">gst_video_meta_unmap</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> *meta</code></em>,
52
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> plane</code></em>,
53
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapInfo"><span class="type">GstMapInfo</span></a> *info</code></em>);
54
const <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMetaInfo"><span class="returnvalue">GstMetaInfo</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-video-meta-get-info" title="gst_video_meta_get_info ()">gst_video_meta_get_info</a> (<em class="parameter"><code><span class="type">void</span></code></em>);
55
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="returnvalue">GstVideoMeta</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-add-video-meta" title="gst_buffer_add_video_meta ()">gst_buffer_add_video_meta</a> (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
56
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrameFlags" title="enum GstVideoFrameFlags"><span class="type">GstVideoFrameFlags</span></a> flags</code></em>,
57
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> format</code></em>,
58
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> width</code></em>,
59
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> height</code></em>);
60
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="returnvalue">GstVideoMeta</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-add-video-meta-full" title="gst_buffer_add_video_meta_full ()">gst_buffer_add_video_meta_full</a> (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
61
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrameFlags" title="enum GstVideoFrameFlags"><span class="type">GstVideoFrameFlags</span></a> flags</code></em>,
62
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> format</code></em>,
63
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> width</code></em>,
64
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> height</code></em>,
65
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_planes</code></em>,
66
<em class="parameter"><code><span class="type">gsize</span> offset[GST_VIDEO_MAX_PLANES]</code></em>,
67
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> stride[GST_VIDEO_MAX_PLANES]</code></em>);
68
#define <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-get-video-meta" title="gst_buffer_get_video_meta()">gst_buffer_get_video_meta</a> (b)
69
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="returnvalue">GstVideoMeta</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-get-video-meta-id" title="gst_buffer_get_video_meta_id ()">gst_buffer_get_video_meta_id</a> (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
70
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> id</code></em>);
71
struct <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoCropMeta" title="struct GstVideoCropMeta">GstVideoCropMeta</a>;
72
#define <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-add-video-crop-meta" title="gst_buffer_add_video_crop_meta()">gst_buffer_add_video_crop_meta</a> (b)
73
#define <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-get-video-crop-meta" title="gst_buffer_get_video_crop_meta()">gst_buffer_get_video_crop_meta</a> (b)
74
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta">GstVideoRegionOfInterestMeta</a>;
75
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="returnvalue">GstVideoRegionOfInterestMeta</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-add-video-region-of-interest-meta" title="gst_buffer_add_video_region_of_interest_meta ()">gst_buffer_add_video_region_of_interest_meta</a>
76
(<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
77
<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *roi_type</code></em>,
78
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> x</code></em>,
79
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> y</code></em>,
80
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> w</code></em>,
81
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> h</code></em>);
82
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="returnvalue">GstVideoRegionOfInterestMeta</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-add-video-region-of-interest-meta-id" title="gst_buffer_add_video_region_of_interest_meta_id ()">gst_buffer_add_video_region_of_interest_meta_id</a>
83
(<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
84
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> roi_type</code></em>,
85
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> x</code></em>,
86
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> y</code></em>,
87
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> w</code></em>,
88
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> h</code></em>);
89
#define <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-get-video-region-of-interest-meta" title="gst_buffer_get_video_region_of_interest_meta()">gst_buffer_get_video_region_of_interest_meta</a>(b)
90
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="returnvalue">GstVideoRegionOfInterestMeta</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-get-video-region-of-interest-meta-id" title="gst_buffer_get_video_region_of_interest_meta_id ()">gst_buffer_get_video_region_of_interest_meta_id</a>
91
(<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
92
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> id</code></em>);
93
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> (<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUpload" title="GstVideoGLTextureUpload ()">*GstVideoGLTextureUpload</a>) (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta"><span class="type">GstVideoGLTextureUploadMeta</span></a> *meta</code></em>,
94
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> texture_id[4]</code></em>);
95
struct <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta">GstVideoGLTextureUploadMeta</a>;
96
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta"><span class="returnvalue">GstVideoGLTextureUploadMeta</span></a> * <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-add-video-gl-texture-upload-meta" title="gst_buffer_add_video_gl_texture_upload_meta ()">gst_buffer_add_video_gl_texture_upload_meta</a>
97
(<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
98
<em class="parameter"><code><span class="type">GstVideoGLTextureOrientation</span> texture_orientation</code></em>,
99
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_textures</code></em>,
100
<em class="parameter"><code><span class="type">GstVideoGLTextureType</span> texture_type[4]</code></em>,
101
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUpload" title="GstVideoGLTextureUpload ()"><span class="type">GstVideoGLTextureUpload</span></a> upload</code></em>,
102
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>,
103
<em class="parameter"><code><a href="http://library.gnome.org/devel/gobject/unstable/gobject-Boxed-Types.html#GBoxedCopyFunc"><span class="type">GBoxedCopyFunc</span></a> user_data_copy</code></em>,
104
<em class="parameter"><code><a href="http://library.gnome.org/devel/gobject/unstable/gobject-Boxed-Types.html#GBoxedFreeFunc"><span class="type">GBoxedFreeFunc</span></a> user_data_free</code></em>);
105
#define <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-get-video-gl-texture-upload-meta" title="gst_buffer_get_video_gl_texture_upload_meta()">gst_buffer_get_video_gl_texture_upload_meta</a>(b)
106
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-video-gl-texture-upload-meta-upload" title="gst_video_gl_texture_upload_meta_upload ()">gst_video_gl_texture_upload_meta_upload</a>
107
(<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta"><span class="type">GstVideoGLTextureUploadMeta</span></a> *meta</code></em>,
108
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> texture_id[4]</code></em>);
35
<div class="refsect1">
36
<a name="gst-plugins-base-libs-gstvideometa.functions"></a><h2>Functions</h2>
37
<div class="informaltable"><table width="100%" border="0">
38
<colgroup>
39
<col width="150px" class="functions_return">
40
<col class="functions_name">
41
</colgroup>
42
<tbody>
43
<tr>
44
<td class="function_type">
45
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
46
</td>
47
<td class="function_name">
48
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-video-meta-map" title="gst_video_meta_map ()">gst_video_meta_map</a> <span class="c_punctuation">()</span>
49
</td>
50
</tr>
51
<tr>
52
<td class="function_type">
53
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
54
</td>
55
<td class="function_name">
56
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-video-meta-unmap" title="gst_video_meta_unmap ()">gst_video_meta_unmap</a> <span class="c_punctuation">()</span>
57
</td>
58
</tr>
59
<tr>
60
<td class="function_type">const <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMetaInfo"><span class="returnvalue">GstMetaInfo</span></a> *
61
</td>
62
<td class="function_name">
63
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-video-meta-get-info" title="gst_video_meta_get_info ()">gst_video_meta_get_info</a> <span class="c_punctuation">()</span>
64
</td>
65
</tr>
66
<tr>
67
<td class="function_type">
68
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="returnvalue">GstVideoMeta</span></a> *
69
</td>
70
<td class="function_name">
71
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-add-video-meta" title="gst_buffer_add_video_meta ()">gst_buffer_add_video_meta</a> <span class="c_punctuation">()</span>
72
</td>
73
</tr>
74
<tr>
75
<td class="function_type">
76
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="returnvalue">GstVideoMeta</span></a> *
77
</td>
78
<td class="function_name">
79
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-add-video-meta-full" title="gst_buffer_add_video_meta_full ()">gst_buffer_add_video_meta_full</a> <span class="c_punctuation">()</span>
80
</td>
81
</tr>
82
<tr>
83
<td class="define_keyword">#define</td>
84
<td class="function_name">
85
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-get-video-meta" title="gst_buffer_get_video_meta()">gst_buffer_get_video_meta</a><span class="c_punctuation">()</span>
86
</td>
87
</tr>
88
<tr>
89
<td class="function_type">
90
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="returnvalue">GstVideoMeta</span></a> *
91
</td>
92
<td class="function_name">
93
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-get-video-meta-id" title="gst_buffer_get_video_meta_id ()">gst_buffer_get_video_meta_id</a> <span class="c_punctuation">()</span>
94
</td>
95
</tr>
96
<tr>
97
<td class="define_keyword">#define</td>
98
<td class="function_name">
99
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-add-video-crop-meta" title="gst_buffer_add_video_crop_meta()">gst_buffer_add_video_crop_meta</a><span class="c_punctuation">()</span>
100
</td>
101
</tr>
102
<tr>
103
<td class="define_keyword">#define</td>
104
<td class="function_name">
105
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-get-video-crop-meta" title="gst_buffer_get_video_crop_meta()">gst_buffer_get_video_crop_meta</a><span class="c_punctuation">()</span>
106
</td>
107
</tr>
108
<tr>
109
<td class="function_type">
110
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="returnvalue">GstVideoRegionOfInterestMeta</span></a> *
111
</td>
112
<td class="function_name">
113
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-add-video-region-of-interest-meta" title="gst_buffer_add_video_region_of_interest_meta ()">gst_buffer_add_video_region_of_interest_meta</a> <span class="c_punctuation">()</span>
114
</td>
115
</tr>
116
<tr>
117
<td class="function_type">
118
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="returnvalue">GstVideoRegionOfInterestMeta</span></a> *
119
</td>
120
<td class="function_name">
121
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-add-video-region-of-interest-meta-id" title="gst_buffer_add_video_region_of_interest_meta_id ()">gst_buffer_add_video_region_of_interest_meta_id</a> <span class="c_punctuation">()</span>
122
</td>
123
</tr>
124
<tr>
125
<td class="define_keyword">#define</td>
126
<td class="function_name">
127
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-get-video-region-of-interest-meta" title="gst_buffer_get_video_region_of_interest_meta()">gst_buffer_get_video_region_of_interest_meta</a><span class="c_punctuation">()</span>
128
</td>
129
</tr>
130
<tr>
131
<td class="function_type">
132
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="returnvalue">GstVideoRegionOfInterestMeta</span></a> *
133
</td>
134
<td class="function_name">
135
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-get-video-region-of-interest-meta-id" title="gst_buffer_get_video_region_of_interest_meta_id ()">gst_buffer_get_video_region_of_interest_meta_id</a> <span class="c_punctuation">()</span>
136
</td>
137
</tr>
138
<tr>
139
<td class="function_type">
140
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
141
</td>
142
<td class="function_name">
143
<span class="c_punctuation">(</span><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUpload" title="GstVideoGLTextureUpload ()">*GstVideoGLTextureUpload</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
144
</td>
145
</tr>
146
<tr>
147
<td class="function_type">
148
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta"><span class="returnvalue">GstVideoGLTextureUploadMeta</span></a> *
149
</td>
150
<td class="function_name">
151
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-add-video-gl-texture-upload-meta" title="gst_buffer_add_video_gl_texture_upload_meta ()">gst_buffer_add_video_gl_texture_upload_meta</a> <span class="c_punctuation">()</span>
152
</td>
153
</tr>
154
<tr>
155
<td class="define_keyword">#define</td>
156
<td class="function_name">
157
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-get-video-gl-texture-upload-meta" title="gst_buffer_get_video_gl_texture_upload_meta()">gst_buffer_get_video_gl_texture_upload_meta</a><span class="c_punctuation">()</span>
158
</td>
159
</tr>
160
<tr>
161
<td class="function_type">
162
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
163
</td>
164
<td class="function_name">
165
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-video-gl-texture-upload-meta-upload" title="gst_video_gl_texture_upload_meta_upload ()">gst_video_gl_texture_upload_meta_upload</a> <span class="c_punctuation">()</span>
166
</td>
167
</tr>
168
</tbody>
169
</table></div>
170
</div>
171
<div class="refsect1">
172
<a name="gst-plugins-base-libs-gstvideometa.other"></a><h2>Types and Values</h2>
173
<div class="informaltable"><table width="100%" border="0">
174
<colgroup>
175
<col width="150px" class="name">
176
<col class="description">
177
</colgroup>
178
<tbody>
179
<tr>
180
<td class="datatype_keyword">struct</td>
181
<td class="function_name"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta">GstVideoMeta</a></td>
182
</tr>
183
<tr>
184
<td class="datatype_keyword"> </td>
185
<td class="function_name"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMetaTransform" title="GstVideoMetaTransform">GstVideoMetaTransform</a></td>
186
</tr>
187
<tr>
188
<td class="datatype_keyword">struct</td>
189
<td class="function_name"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoCropMeta" title="struct GstVideoCropMeta">GstVideoCropMeta</a></td>
190
</tr>
191
<tr>
192
<td class="datatype_keyword"> </td>
193
<td class="function_name"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta">GstVideoRegionOfInterestMeta</a></td>
194
</tr>
195
<tr>
196
<td class="datatype_keyword">struct</td>
197
<td class="function_name"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta">GstVideoGLTextureUploadMeta</a></td>
198
</tr>
199
</tbody>
200
</table></div>
201
</div>
202
<div class="refsect1">
203
<a name="gst-plugins-base-libs-gstvideometa.object-hierarchy"></a><h2>Object Hierarchy</h2>
204
<pre class="screen">
205
</pre>
206
</div>
207
<div class="refsect1">
208
<a name="gst-plugins-base-libs-gstvideometa.includes"></a><h2>Includes</h2>
209
<pre class="synopsis">#include <gst/video/gstvideometa.h>
109
210
</pre>
110
211
</div>
111
212
<div class="refsect1">
112
213
<a name="gst-plugins-base-libs-gstvideometa.description"></a><h2>Description</h2>
113
214
</div>
114
215
<div class="refsect1">
115
<a name="gst-plugins-base-libs-gstvideometa.details"></a><h2>Details</h2>
216
<a name="gst-plugins-base-libs-gstvideometa.functions_details"></a><h2>Functions</h2>
217
<div class="refsect2">
218
<a name="gst-video-meta-map"></a><h3>gst_video_meta_map ()</h3>
219
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
220
gst_video_meta_map (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> *meta</code></em>,
221
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> plane</code></em>,
222
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapInfo"><span class="type">GstMapInfo</span></a> *info</code></em>,
223
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> *data</code></em>,
224
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *stride</code></em>,
225
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapFlags"><span class="type">GstMapFlags</span></a> flags</code></em>);</pre>
226
<p>Map the video plane with index <em class="parameter"><code>plane</code></em>
227
in <em class="parameter"><code>meta</code></em>
228
and return a pointer to the
229
first byte of the plane and the stride of the plane.</p>
230
<div class="refsect3">
231
<a name="id-1.2.14.4.8.2.5"></a><h4>Parameters</h4>
232
<div class="informaltable"><table width="100%" border="0">
233
<colgroup>
234
<col width="150px" class="parameters_name">
235
<col class="parameters_description">
236
<col width="200px" class="parameters_annotations">
237
</colgroup>
238
<tbody>
239
<tr>
240
<td class="parameter_name"><p>meta</p></td>
241
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a></p></td>
242
<td class="parameter_annotations"> </td>
243
</tr>
244
<tr>
245
<td class="parameter_name"><p>plane</p></td>
246
<td class="parameter_description"><p>a plane</p></td>
247
<td class="parameter_annotations"> </td>
248
</tr>
249
<tr>
250
<td class="parameter_name"><p>info</p></td>
251
<td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapInfo"><span class="type">GstMapInfo</span></a></p></td>
252
<td class="parameter_annotations"> </td>
253
</tr>
254
<tr>
255
<td class="parameter_name"><p>data</p></td>
256
<td class="parameter_description"><p>the data of <em class="parameter"><code>plane</code></em>
257
</p></td>
258
<td class="parameter_annotations"> </td>
259
</tr>
260
<tr>
261
<td class="parameter_name"><p>stride</p></td>
262
<td class="parameter_description"><p>the stride of <em class="parameter"><code>plane</code></em>
263
</p></td>
264
<td class="parameter_annotations"> </td>
265
</tr>
266
<tr>
267
<td class="parameter_name"><p>flags</p></td>
268
<td class="parameter_description"><p><em class="parameter"><code>GstMapFlags</code></em>
269
</p></td>
270
<td class="parameter_annotations"> </td>
271
</tr>
272
</tbody>
273
</table></div>
274
</div>
275
<div class="refsect3">
276
<a name="id-1.2.14.4.8.2.6"></a><h4>Returns</h4>
277
<p> TRUE if the map operation was successful.</p>
278
<p></p>
279
</div>
280
</div>
281
<hr>
282
<div class="refsect2">
283
<a name="gst-video-meta-unmap"></a><h3>gst_video_meta_unmap ()</h3>
284
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
285
gst_video_meta_unmap (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> *meta</code></em>,
286
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> plane</code></em>,
287
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapInfo"><span class="type">GstMapInfo</span></a> *info</code></em>);</pre>
288
<p>Unmap a previously mapped plane with <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-video-meta-map" title="gst_video_meta_map ()"><code class="function">gst_video_meta_map()</code></a>.</p>
289
<div class="refsect3">
290
<a name="id-1.2.14.4.8.3.5"></a><h4>Parameters</h4>
291
<div class="informaltable"><table width="100%" border="0">
292
<colgroup>
293
<col width="150px" class="parameters_name">
294
<col class="parameters_description">
295
<col width="200px" class="parameters_annotations">
296
</colgroup>
297
<tbody>
298
<tr>
299
<td class="parameter_name"><p>meta</p></td>
300
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a></p></td>
301
<td class="parameter_annotations"> </td>
302
</tr>
303
<tr>
304
<td class="parameter_name"><p>plane</p></td>
305
<td class="parameter_description"><p>a plane</p></td>
306
<td class="parameter_annotations"> </td>
307
</tr>
308
<tr>
309
<td class="parameter_name"><p>info</p></td>
310
<td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapInfo"><span class="type">GstMapInfo</span></a></p></td>
311
<td class="parameter_annotations"> </td>
312
</tr>
313
</tbody>
314
</table></div>
315
</div>
316
<div class="refsect3">
317
<a name="id-1.2.14.4.8.3.6"></a><h4>Returns</h4>
318
<p> TRUE if the memory was successfully unmapped.</p>
319
<p></p>
320
</div>
321
</div>
322
<hr>
323
<div class="refsect2">
324
<a name="gst-video-meta-get-info"></a><h3>gst_video_meta_get_info ()</h3>
325
<pre class="programlisting">const <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMetaInfo"><span class="returnvalue">GstMetaInfo</span></a> *
326
gst_video_meta_get_info (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
327
</div>
328
<hr>
329
<div class="refsect2">
330
<a name="gst-buffer-add-video-meta"></a><h3>gst_buffer_add_video_meta ()</h3>
331
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="returnvalue">GstVideoMeta</span></a> *
332
gst_buffer_add_video_meta (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
333
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrameFlags" title="enum GstVideoFrameFlags"><span class="type">GstVideoFrameFlags</span></a> flags</code></em>,
334
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> format</code></em>,
335
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> width</code></em>,
336
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> height</code></em>);</pre>
337
<p>Attaches GstVideoMeta metadata to <em class="parameter"><code>buffer</code></em>
338
with the given parameters and the
339
default offsets and strides for <em class="parameter"><code>format</code></em>
340
and <em class="parameter"><code>width</code></em>
341
x <em class="parameter"><code>height</code></em>
342
.</p>
343
<p>This function calculates the default offsets and strides and then calls
344
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-add-video-meta-full" title="gst_buffer_add_video_meta_full ()"><code class="function">gst_buffer_add_video_meta_full()</code></a> with them.</p>
345
<div class="refsect3">
346
<a name="id-1.2.14.4.8.5.6"></a><h4>Parameters</h4>
347
<div class="informaltable"><table width="100%" border="0">
348
<colgroup>
349
<col width="150px" class="parameters_name">
350
<col class="parameters_description">
351
<col width="200px" class="parameters_annotations">
352
</colgroup>
353
<tbody>
354
<tr>
355
<td class="parameter_name"><p>buffer</p></td>
356
<td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a></p></td>
357
<td class="parameter_annotations"> </td>
358
</tr>
359
<tr>
360
<td class="parameter_name"><p>flags</p></td>
361
<td class="parameter_description"><p><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrameFlags" title="enum GstVideoFrameFlags"><span class="type">GstVideoFrameFlags</span></a></p></td>
362
<td class="parameter_annotations"> </td>
363
</tr>
364
<tr>
365
<td class="parameter_name"><p>format</p></td>
366
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a></p></td>
367
<td class="parameter_annotations"> </td>
368
</tr>
369
<tr>
370
<td class="parameter_name"><p>width</p></td>
371
<td class="parameter_description"><p>the width</p></td>
372
<td class="parameter_annotations"> </td>
373
</tr>
374
<tr>
375
<td class="parameter_name"><p>height</p></td>
376
<td class="parameter_description"><p>the height</p></td>
377
<td class="parameter_annotations"> </td>
378
</tr>
379
</tbody>
380
</table></div>
381
</div>
382
<div class="refsect3">
383
<a name="id-1.2.14.4.8.5.7"></a><h4>Returns</h4>
384
<p> the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> on <em class="parameter"><code>buffer</code></em>
385
.</p>
386
<p></p>
387
</div>
388
</div>
389
<hr>
390
<div class="refsect2">
391
<a name="gst-buffer-add-video-meta-full"></a><h3>gst_buffer_add_video_meta_full ()</h3>
392
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="returnvalue">GstVideoMeta</span></a> *
393
gst_buffer_add_video_meta_full (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
394
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrameFlags" title="enum GstVideoFrameFlags"><span class="type">GstVideoFrameFlags</span></a> flags</code></em>,
395
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> format</code></em>,
396
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> width</code></em>,
397
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> height</code></em>,
398
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_planes</code></em>,
399
<em class="parameter"><code><span class="type">gsize</span> offset[GST_VIDEO_MAX_PLANES]</code></em>,
400
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> stride[GST_VIDEO_MAX_PLANES]</code></em>);</pre>
401
<p>Attaches GstVideoMeta metadata to <em class="parameter"><code>buffer</code></em>
402
with the given parameters.</p>
403
<div class="refsect3">
404
<a name="id-1.2.14.4.8.6.5"></a><h4>Parameters</h4>
405
<div class="informaltable"><table width="100%" border="0">
406
<colgroup>
407
<col width="150px" class="parameters_name">
408
<col class="parameters_description">
409
<col width="200px" class="parameters_annotations">
410
</colgroup>
411
<tbody>
412
<tr>
413
<td class="parameter_name"><p>buffer</p></td>
414
<td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a></p></td>
415
<td class="parameter_annotations"> </td>
416
</tr>
417
<tr>
418
<td class="parameter_name"><p>flags</p></td>
419
<td class="parameter_description"><p><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrameFlags" title="enum GstVideoFrameFlags"><span class="type">GstVideoFrameFlags</span></a></p></td>
420
<td class="parameter_annotations"> </td>
421
</tr>
422
<tr>
423
<td class="parameter_name"><p>format</p></td>
424
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a></p></td>
425
<td class="parameter_annotations"> </td>
426
</tr>
427
<tr>
428
<td class="parameter_name"><p>width</p></td>
429
<td class="parameter_description"><p>the width</p></td>
430
<td class="parameter_annotations"> </td>
431
</tr>
432
<tr>
433
<td class="parameter_name"><p>height</p></td>
434
<td class="parameter_description"><p>the height</p></td>
435
<td class="parameter_annotations"> </td>
436
</tr>
437
<tr>
438
<td class="parameter_name"><p>n_planes</p></td>
439
<td class="parameter_description"><p>number of planes</p></td>
440
<td class="parameter_annotations"> </td>
441
</tr>
442
<tr>
443
<td class="parameter_name"><p>offset</p></td>
444
<td class="parameter_description"><p>offset of each plane</p></td>
445
<td class="parameter_annotations"> </td>
446
</tr>
447
<tr>
448
<td class="parameter_name"><p>stride</p></td>
449
<td class="parameter_description"><p>stride of each plane</p></td>
450
<td class="parameter_annotations"> </td>
451
</tr>
452
</tbody>
453
</table></div>
454
</div>
455
<div class="refsect3">
456
<a name="id-1.2.14.4.8.6.6"></a><h4>Returns</h4>
457
<p> the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> on <em class="parameter"><code>buffer</code></em>
458
.</p>
459
<p></p>
460
</div>
461
</div>
462
<hr>
463
<div class="refsect2">
464
<a name="gst-buffer-get-video-meta"></a><h3>gst_buffer_get_video_meta()</h3>
465
<pre class="programlisting">#define gst_buffer_get_video_meta(b) ((GstVideoMeta*)gst_buffer_get_meta((b),GST_VIDEO_META_API_TYPE))
466
</pre>
467
</div>
468
<hr>
469
<div class="refsect2">
470
<a name="gst-buffer-get-video-meta-id"></a><h3>gst_buffer_get_video_meta_id ()</h3>
471
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="returnvalue">GstVideoMeta</span></a> *
472
gst_buffer_get_video_meta_id (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
473
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> id</code></em>);</pre>
474
<p>Find the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> on <em class="parameter"><code>buffer</code></em>
475
with the given <em class="parameter"><code>id</code></em>
476
.</p>
477
<p>Buffers can contain multiple <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> metadata items when dealing with
478
multiview buffers.</p>
479
<div class="refsect3">
480
<a name="id-1.2.14.4.8.8.6"></a><h4>Parameters</h4>
481
<div class="informaltable"><table width="100%" border="0">
482
<colgroup>
483
<col width="150px" class="parameters_name">
484
<col class="parameters_description">
485
<col width="200px" class="parameters_annotations">
486
</colgroup>
487
<tbody>
488
<tr>
489
<td class="parameter_name"><p>buffer</p></td>
490
<td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a></p></td>
491
<td class="parameter_annotations"> </td>
492
</tr>
493
<tr>
494
<td class="parameter_name"><p>id</p></td>
495
<td class="parameter_description"><p>a metadata id</p></td>
496
<td class="parameter_annotations"> </td>
497
</tr>
498
</tbody>
499
</table></div>
500
</div>
501
<div class="refsect3">
502
<a name="id-1.2.14.4.8.8.7"></a><h4>Returns</h4>
503
<p> the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> with <em class="parameter"><code>id</code></em>
504
or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> when there is no such metadata
505
on <em class="parameter"><code>buffer</code></em>
506
.</p>
507
<p></p>
508
</div>
509
</div>
510
<hr>
511
<div class="refsect2">
512
<a name="gst-buffer-add-video-crop-meta"></a><h3>gst_buffer_add_video_crop_meta()</h3>
513
<pre class="programlisting">#define gst_buffer_add_video_crop_meta(b) ((GstVideoCropMeta*)gst_buffer_add_meta((b),GST_VIDEO_CROP_META_INFO, NULL))
514
</pre>
515
</div>
516
<hr>
517
<div class="refsect2">
518
<a name="gst-buffer-get-video-crop-meta"></a><h3>gst_buffer_get_video_crop_meta()</h3>
519
<pre class="programlisting">#define gst_buffer_get_video_crop_meta(b) ((GstVideoCropMeta*)gst_buffer_get_meta((b),GST_VIDEO_CROP_META_API_TYPE))
520
</pre>
521
</div>
522
<hr>
523
<div class="refsect2">
524
<a name="gst-buffer-add-video-region-of-interest-meta"></a><h3>gst_buffer_add_video_region_of_interest_meta ()</h3>
525
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="returnvalue">GstVideoRegionOfInterestMeta</span></a> *
526
gst_buffer_add_video_region_of_interest_meta
527
(<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
528
<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *roi_type</code></em>,
529
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> x</code></em>,
530
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> y</code></em>,
531
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> w</code></em>,
532
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> h</code></em>);</pre>
533
<p>Attaches <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="type">GstVideoRegionOfInterestMeta</span></a> metadata to <em class="parameter"><code>buffer</code></em>
534
with the given
535
parameters.</p>
536
<div class="refsect3">
537
<a name="id-1.2.14.4.8.11.5"></a><h4>Parameters</h4>
538
<div class="informaltable"><table width="100%" border="0">
539
<colgroup>
540
<col width="150px" class="parameters_name">
541
<col class="parameters_description">
542
<col width="200px" class="parameters_annotations">
543
</colgroup>
544
<tbody>
545
<tr>
546
<td class="parameter_name"><p>buffer</p></td>
547
<td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a></p></td>
548
<td class="parameter_annotations"> </td>
549
</tr>
550
<tr>
551
<td class="parameter_name"><p>roi_type</p></td>
552
<td class="parameter_description"><p>Type of the region of interest (e.g. "face")</p></td>
553
<td class="parameter_annotations"> </td>
554
</tr>
555
<tr>
556
<td class="parameter_name"><p>x</p></td>
557
<td class="parameter_description"><p>X position</p></td>
558
<td class="parameter_annotations"> </td>
559
</tr>
560
<tr>
561
<td class="parameter_name"><p>y</p></td>
562
<td class="parameter_description"><p>Y position</p></td>
563
<td class="parameter_annotations"> </td>
564
</tr>
565
<tr>
566
<td class="parameter_name"><p>w</p></td>
567
<td class="parameter_description"><p>width</p></td>
568
<td class="parameter_annotations"> </td>
569
</tr>
570
<tr>
571
<td class="parameter_name"><p>h</p></td>
572
<td class="parameter_description"><p>height</p></td>
573
<td class="parameter_annotations"> </td>
574
</tr>
575
</tbody>
576
</table></div>
577
</div>
578
<div class="refsect3">
579
<a name="id-1.2.14.4.8.11.6"></a><h4>Returns</h4>
580
<p> the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="type">GstVideoRegionOfInterestMeta</span></a> on <em class="parameter"><code>buffer</code></em>
581
.</p>
582
<p></p>
583
</div>
584
</div>
585
<hr>
586
<div class="refsect2">
587
<a name="gst-buffer-add-video-region-of-interest-meta-id"></a><h3>gst_buffer_add_video_region_of_interest_meta_id ()</h3>
588
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="returnvalue">GstVideoRegionOfInterestMeta</span></a> *
589
gst_buffer_add_video_region_of_interest_meta_id
590
(<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
591
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> roi_type</code></em>,
592
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> x</code></em>,
593
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> y</code></em>,
594
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> w</code></em>,
595
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> h</code></em>);</pre>
596
<p>Attaches <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="type">GstVideoRegionOfInterestMeta</span></a> metadata to <em class="parameter"><code>buffer</code></em>
597
with the given
598
parameters.</p>
599
<div class="refsect3">
600
<a name="id-1.2.14.4.8.12.5"></a><h4>Parameters</h4>
601
<div class="informaltable"><table width="100%" border="0">
602
<colgroup>
603
<col width="150px" class="parameters_name">
604
<col class="parameters_description">
605
<col width="200px" class="parameters_annotations">
606
</colgroup>
607
<tbody>
608
<tr>
609
<td class="parameter_name"><p>buffer</p></td>
610
<td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a></p></td>
611
<td class="parameter_annotations"> </td>
612
</tr>
613
<tr>
614
<td class="parameter_name"><p>roi_type</p></td>
615
<td class="parameter_description"><p>Type of the region of interest (e.g. "face")</p></td>
616
<td class="parameter_annotations"> </td>
617
</tr>
618
<tr>
619
<td class="parameter_name"><p>x</p></td>
620
<td class="parameter_description"><p>X position</p></td>
621
<td class="parameter_annotations"> </td>
622
</tr>
623
<tr>
624
<td class="parameter_name"><p>y</p></td>
625
<td class="parameter_description"><p>Y position</p></td>
626
<td class="parameter_annotations"> </td>
627
</tr>
628
<tr>
629
<td class="parameter_name"><p>w</p></td>
630
<td class="parameter_description"><p>width</p></td>
631
<td class="parameter_annotations"> </td>
632
</tr>
633
<tr>
634
<td class="parameter_name"><p>h</p></td>
635
<td class="parameter_description"><p>height</p></td>
636
<td class="parameter_annotations"> </td>
637
</tr>
638
</tbody>
639
</table></div>
640
</div>
641
<div class="refsect3">
642
<a name="id-1.2.14.4.8.12.6"></a><h4>Returns</h4>
643
<p> the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="type">GstVideoRegionOfInterestMeta</span></a> on <em class="parameter"><code>buffer</code></em>
644
.</p>
645
<p></p>
646
</div>
647
</div>
648
<hr>
649
<div class="refsect2">
650
<a name="gst-buffer-get-video-region-of-interest-meta"></a><h3>gst_buffer_get_video_region_of_interest_meta()</h3>
651
<pre class="programlisting">#define gst_buffer_get_video_region_of_interest_meta(b)</pre>
652
</div>
653
<hr>
654
<div class="refsect2">
655
<a name="gst-buffer-get-video-region-of-interest-meta-id"></a><h3>gst_buffer_get_video_region_of_interest_meta_id ()</h3>
656
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="returnvalue">GstVideoRegionOfInterestMeta</span></a> *
657
gst_buffer_get_video_region_of_interest_meta_id
658
(<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
659
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> id</code></em>);</pre>
660
<p>Find the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="type">GstVideoRegionOfInterestMeta</span></a> on <em class="parameter"><code>buffer</code></em>
661
with the given <em class="parameter"><code>id</code></em>
662
.</p>
663
<p>Buffers can contain multiple <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="type">GstVideoRegionOfInterestMeta</span></a> metadata items if
664
multiple regions of interests are marked on a frame.</p>
665
<div class="refsect3">
666
<a name="id-1.2.14.4.8.14.6"></a><h4>Parameters</h4>
667
<div class="informaltable"><table width="100%" border="0">
668
<colgroup>
669
<col width="150px" class="parameters_name">
670
<col class="parameters_description">
671
<col width="200px" class="parameters_annotations">
672
</colgroup>
673
<tbody>
674
<tr>
675
<td class="parameter_name"><p>buffer</p></td>
676
<td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a></p></td>
677
<td class="parameter_annotations"> </td>
678
</tr>
679
<tr>
680
<td class="parameter_name"><p>id</p></td>
681
<td class="parameter_description"><p>a metadata id</p></td>
682
<td class="parameter_annotations"> </td>
683
</tr>
684
</tbody>
685
</table></div>
686
</div>
687
<div class="refsect3">
688
<a name="id-1.2.14.4.8.14.7"></a><h4>Returns</h4>
689
<p> the <span class="type">GstVideoeRegionOfInterestMeta</span> with <em class="parameter"><code>id</code></em>
690
or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> when there is
691
no such metadata on <em class="parameter"><code>buffer</code></em>
692
.</p>
693
<p></p>
694
</div>
695
</div>
696
<hr>
697
<div class="refsect2">
698
<a name="GstVideoGLTextureUpload"></a><h3>GstVideoGLTextureUpload ()</h3>
699
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
700
<span class="c_punctuation">(</span>*GstVideoGLTextureUpload<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta"><span class="type">GstVideoGLTextureUploadMeta</span></a> *meta</code></em>,
701
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> texture_id[4]</code></em>);</pre>
702
</div>
703
<hr>
704
<div class="refsect2">
705
<a name="gst-buffer-add-video-gl-texture-upload-meta"></a><h3>gst_buffer_add_video_gl_texture_upload_meta ()</h3>
706
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta"><span class="returnvalue">GstVideoGLTextureUploadMeta</span></a> *
707
gst_buffer_add_video_gl_texture_upload_meta
708
(<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
709
<em class="parameter"><code><span class="type">GstVideoGLTextureOrientation</span> texture_orientation</code></em>,
710
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_textures</code></em>,
711
<em class="parameter"><code><span class="type">GstVideoGLTextureType</span> texture_type[4]</code></em>,
712
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUpload" title="GstVideoGLTextureUpload ()"><span class="type">GstVideoGLTextureUpload</span></a> upload</code></em>,
713
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>,
714
<em class="parameter"><code><a href="http://library.gnome.org/devel/gobject/unstable/gobject-Boxed-Types.html#GBoxedCopyFunc"><span class="type">GBoxedCopyFunc</span></a> user_data_copy</code></em>,
715
<em class="parameter"><code><a href="http://library.gnome.org/devel/gobject/unstable/gobject-Boxed-Types.html#GBoxedFreeFunc"><span class="type">GBoxedFreeFunc</span></a> user_data_free</code></em>);</pre>
716
<p>Attaches GstVideoGLTextureUploadMeta metadata to <em class="parameter"><code>buffer</code></em>
717
with the given
718
parameters.</p>
719
<div class="refsect3">
720
<a name="id-1.2.14.4.8.16.5"></a><h4>Parameters</h4>
721
<div class="informaltable"><table width="100%" border="0">
722
<colgroup>
723
<col width="150px" class="parameters_name">
724
<col class="parameters_description">
725
<col width="200px" class="parameters_annotations">
726
</colgroup>
727
<tbody>
728
<tr>
729
<td class="parameter_name"><p>buffer</p></td>
730
<td class="parameter_description"><p>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a></p></td>
731
<td class="parameter_annotations"> </td>
732
</tr>
733
<tr>
734
<td class="parameter_name"><p>upload</p></td>
735
<td class="parameter_description"><p>the function to upload the buffer to a specific texture ID</p></td>
736
<td class="parameter_annotations"> </td>
737
</tr>
738
<tr>
739
<td class="parameter_name"><p>user_data</p></td>
740
<td class="parameter_description"><p>user data for the implementor of <em class="parameter"><code>upload</code></em>
741
</p></td>
742
<td class="parameter_annotations"> </td>
743
</tr>
744
<tr>
745
<td class="parameter_name"><p>user_data_copy</p></td>
746
<td class="parameter_description"><p>function to copy <em class="parameter"><code>user_data</code></em>
747
</p></td>
748
<td class="parameter_annotations"> </td>
749
</tr>
750
<tr>
751
<td class="parameter_name"><p>user_data_free</p></td>
752
<td class="parameter_description"><p>function to free <em class="parameter"><code>user_data</code></em>
753
</p></td>
754
<td class="parameter_annotations"> </td>
755
</tr>
756
</tbody>
757
</table></div>
758
</div>
759
<div class="refsect3">
760
<a name="id-1.2.14.4.8.16.6"></a><h4>Returns</h4>
761
<p> the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta"><span class="type">GstVideoGLTextureUploadMeta</span></a> on <em class="parameter"><code>buffer</code></em>
762
.</p>
763
<p></p>
764
</div>
765
</div>
766
<hr>
767
<div class="refsect2">
768
<a name="gst-buffer-get-video-gl-texture-upload-meta"></a><h3>gst_buffer_get_video_gl_texture_upload_meta()</h3>
769
<pre class="programlisting">#define gst_buffer_get_video_gl_texture_upload_meta(b) ((GstVideoGLTextureUploadMeta*)gst_buffer_get_meta((b),GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE))
770
</pre>
771
</div>
772
<hr>
773
<div class="refsect2">
774
<a name="gst-video-gl-texture-upload-meta-upload"></a><h3>gst_video_gl_texture_upload_meta_upload ()</h3>
775
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
776
gst_video_gl_texture_upload_meta_upload
777
(<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta"><span class="type">GstVideoGLTextureUploadMeta</span></a> *meta</code></em>,
778
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> texture_id[4]</code></em>);</pre>
779
<p>Uploads the buffer which owns the meta to a specific texture ID.</p>
780
<div class="refsect3">
781
<a name="id-1.2.14.4.8.18.5"></a><h4>Parameters</h4>
782
<div class="informaltable"><table width="100%" border="0">
783
<colgroup>
784
<col width="150px" class="parameters_name">
785
<col class="parameters_description">
786
<col width="200px" class="parameters_annotations">
787
</colgroup>
788
<tbody>
789
<tr>
790
<td class="parameter_name"><p>meta</p></td>
791
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta"><span class="type">GstVideoGLTextureUploadMeta</span></a></p></td>
792
<td class="parameter_annotations"> </td>
793
</tr>
794
<tr>
795
<td class="parameter_name"><p>texture_id</p></td>
796
<td class="parameter_description"><p>the texture IDs to upload to</p></td>
797
<td class="parameter_annotations"> </td>
798
</tr>
799
</tbody>
800
</table></div>
801
</div>
802
<div class="refsect3">
803
<a name="id-1.2.14.4.8.18.6"></a><h4>Returns</h4>
804
<p> <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if uploading succeeded, <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</p>
805
<p></p>
806
</div>
807
</div>
808
</div>
809
<div class="refsect1">
810
<a name="gst-plugins-base-libs-gstvideometa.other_details"></a><h2>Types and Values</h2>
116
811
<div class="refsect2">
117
812
<a name="GstVideoMeta"></a><h3>struct GstVideoMeta</h3>
118
813
<pre class="programlisting">struct GstVideoMeta {
135
830
gboolean (*unmap) (GstVideoMeta *meta, guint plane, GstMapInfo *info);
136
831
};
137
832
</pre>
138
<p>
139
Extra buffer metadata describing image properties
140
</p>
141
<div class="variablelist"><table border="0" class="variablelist">
833
<p>Extra buffer metadata describing image properties</p>
834
<div class="refsect3">
835
<a name="id-1.2.14.4.9.2.5"></a><h4>Members</h4>
836
<div class="informaltable"><table width="100%" border="0">
142
837
<colgroup>
143
<col align="left" valign="top">
144
<col>
838
<col width="300px" class="struct_members_name">
839
<col class="struct_members_description">
840
<col width="200px" class="struct_members_annotations">
145
841
</colgroup>
146
842
<tbody>
147
843
<tr>
148
<td><p><span class="term"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a> <em class="structfield"><code><a name="GstVideoMeta.meta"></a>meta</code></em>;</span></p></td>
149
<td>parent <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a>
150
</td>
151
</tr>
152
<tr>
153
<td><p><span class="term"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *<em class="structfield"><code><a name="GstVideoMeta.buffer"></a>buffer</code></em>;</span></p></td>
154
<td>the buffer this metadata belongs to</td>
155
</tr>
156
<tr>
157
<td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrameFlags" title="enum GstVideoFrameFlags"><span class="type">GstVideoFrameFlags</span></a> <em class="structfield"><code><a name="GstVideoMeta.flags"></a>flags</code></em>;</span></p></td>
158
<td>additional video flags</td>
159
</tr>
160
<tr>
161
<td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> <em class="structfield"><code><a name="GstVideoMeta.format"></a>format</code></em>;</span></p></td>
162
<td>the video format</td>
163
</tr>
164
<tr>
165
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoMeta.id"></a>id</code></em>;</span></p></td>
166
<td>identifier of the frame</td>
167
</tr>
168
<tr>
169
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoMeta.width"></a>width</code></em>;</span></p></td>
170
<td>the video width</td>
171
</tr>
172
<tr>
173
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoMeta.height"></a>height</code></em>;</span></p></td>
174
<td>the video height</td>
175
</tr>
176
<tr>
177
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoMeta.n-planes"></a>n_planes</code></em>;</span></p></td>
178
<td>the number of planes in the image</td>
179
</tr>
180
<tr>
181
<td><p><span class="term"><span class="type">gsize</span> <em class="structfield"><code><a name="GstVideoMeta.offset"></a>offset</code></em>[GST_VIDEO_MAX_PLANES];</span></p></td>
182
<td>array of offsets for the planes. This field might not always be
183
valid, it is used by the default implementation of <em class="parameter"><code>map</code></em>.</td>
184
</tr>
185
<tr>
186
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoMeta.stride"></a>stride</code></em>[GST_VIDEO_MAX_PLANES];</span></p></td>
187
<td>array of strides for the planes. This field might not always be
188
valid, it is used by the default implementation of <em class="parameter"><code>map</code></em>.</td>
189
</tr>
190
<tr>
191
<td><p><span class="term"><em class="structfield"><code><a name="GstVideoMeta.map"></a>map</code></em> ()</span></p></td>
192
<td>map the memory of a plane</td>
193
</tr>
194
<tr>
195
<td><p><span class="term"><em class="structfield"><code><a name="GstVideoMeta.unmap"></a>unmap</code></em> ()</span></p></td>
196
<td>unmap the memory of a plane</td>
844
<td class="struct_member_name"><p><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a> <em class="structfield"><code><a name="GstVideoMeta.meta"></a>meta</code></em>;</p></td>
845
<td class="struct_member_description"><p>parent <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a></p></td>
846
<td class="struct_member_annotations"> </td>
847
</tr>
848
<tr>
849
<td class="struct_member_name"><p><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *<em class="structfield"><code><a name="GstVideoMeta.buffer"></a>buffer</code></em>;</p></td>
850
<td class="struct_member_description"><p>the buffer this metadata belongs to</p></td>
851
<td class="struct_member_annotations"> </td>
852
</tr>
853
<tr>
854
<td class="struct_member_name"><p><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrameFlags" title="enum GstVideoFrameFlags"><span class="type">GstVideoFrameFlags</span></a> <em class="structfield"><code><a name="GstVideoMeta.flags"></a>flags</code></em>;</p></td>
855
<td class="struct_member_description"><p>additional video flags</p></td>
856
<td class="struct_member_annotations"> </td>
857
</tr>
858
<tr>
859
<td class="struct_member_name"><p><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> <em class="structfield"><code><a name="GstVideoMeta.format"></a>format</code></em>;</p></td>
860
<td class="struct_member_description"><p>the video format</p></td>
861
<td class="struct_member_annotations"> </td>
862
</tr>
863
<tr>
864
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoMeta.id"></a>id</code></em>;</p></td>
865
<td class="struct_member_description"><p>identifier of the frame</p></td>
866
<td class="struct_member_annotations"> </td>
867
</tr>
868
<tr>
869
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoMeta.width"></a>width</code></em>;</p></td>
870
<td class="struct_member_description"><p>the video width</p></td>
871
<td class="struct_member_annotations"> </td>
872
</tr>
873
<tr>
874
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoMeta.height"></a>height</code></em>;</p></td>
875
<td class="struct_member_description"><p>the video height</p></td>
876
<td class="struct_member_annotations"> </td>
877
</tr>
878
<tr>
879
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoMeta.n-planes"></a>n_planes</code></em>;</p></td>
880
<td class="struct_member_description"><p>the number of planes in the image</p></td>
881
<td class="struct_member_annotations"> </td>
882
</tr>
883
<tr>
884
<td class="struct_member_name"><p><span class="type">gsize</span> <em class="structfield"><code><a name="GstVideoMeta.offset"></a>offset</code></em>[GST_VIDEO_MAX_PLANES];</p></td>
885
<td class="struct_member_description"><p>array of offsets for the planes. This field might not always be
886
valid, it is used by the default implementation of <em class="parameter"><code>map</code></em>
887
.</p></td>
888
<td class="struct_member_annotations"> </td>
889
</tr>
890
<tr>
891
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoMeta.stride"></a>stride</code></em>[GST_VIDEO_MAX_PLANES];</p></td>
892
<td class="struct_member_description"><p>array of strides for the planes. This field might not always be
893
valid, it is used by the default implementation of <em class="parameter"><code>map</code></em>
894
.</p></td>
895
<td class="struct_member_annotations"> </td>
896
</tr>
897
<tr>
898
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstVideoMeta.map"></a>map</code></em> ()</p></td>
899
<td class="struct_member_description"><p>map the memory of a plane</p></td>
900
<td class="struct_member_annotations"> </td>
901
</tr>
902
<tr>
903
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstVideoMeta.unmap"></a>unmap</code></em> ()</p></td>
904
<td class="struct_member_description"><p>unmap the memory of a plane</p></td>
905
<td class="struct_member_annotations"> </td>
197
906
</tr>
198
907
</tbody>
199
908
</table></div>
200
909
</div>
910
</div>
201
911
<hr>
202
912
<div class="refsect2">
203
913
<a name="GstVideoMetaTransform"></a><h3>GstVideoMetaTransform</h3>
206
916
GstVideoInfo *out_info;
207
917
} GstVideoMetaTransform;
208
918
</pre>
209
<p>
210
Extra data passed to a video transform <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMetaTransformFunction"><span class="type">GstMetaTransformFunction</span></a> such as:
211
"gst-video-scale".
212
</p>
213
<div class="variablelist"><table border="0" class="variablelist">
214
<colgroup>
215
<col align="left" valign="top">
216
<col>
217
</colgroup>
218
<tbody>
219
<tr>
220
<td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *<em class="structfield"><code><a name="GstVideoMetaTransform.in-info"></a>in_info</code></em>;</span></p></td>
221
<td>the input <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a>
222
</td>
223
</tr>
224
<tr>
225
<td><p><span class="term"><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *<em class="structfield"><code><a name="GstVideoMetaTransform.out-info"></a>out_info</code></em>;</span></p></td>
226
<td>the output <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a>
227
</td>
228
</tr>
229
</tbody>
230
</table></div>
231
</div>
232
<hr>
233
<div class="refsect2">
234
<a name="gst-video-meta-map"></a><h3>gst_video_meta_map ()</h3>
235
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_meta_map (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> *meta</code></em>,
236
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> plane</code></em>,
237
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapInfo"><span class="type">GstMapInfo</span></a> *info</code></em>,
238
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> *data</code></em>,
239
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *stride</code></em>,
240
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapFlags"><span class="type">GstMapFlags</span></a> flags</code></em>);</pre>
241
<p>
242
Map the video plane with index <em class="parameter"><code>plane</code></em> in <em class="parameter"><code>meta</code></em> and return a pointer to the
243
first byte of the plane and the stride of the plane.
244
</p>
245
<div class="variablelist"><table border="0" class="variablelist">
246
<colgroup>
247
<col align="left" valign="top">
248
<col>
249
</colgroup>
250
<tbody>
251
<tr>
252
<td><p><span class="term"><em class="parameter"><code>meta</code></em> :</span></p></td>
253
<td>a <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a>
254
</td>
255
</tr>
256
<tr>
257
<td><p><span class="term"><em class="parameter"><code>plane</code></em> :</span></p></td>
258
<td>a plane</td>
259
</tr>
260
<tr>
261
<td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
262
<td>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapInfo"><span class="type">GstMapInfo</span></a>
263
</td>
264
</tr>
265
<tr>
266
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
267
<td>the data of <em class="parameter"><code>plane</code></em>
268
</td>
269
</tr>
270
<tr>
271
<td><p><span class="term"><em class="parameter"><code>stride</code></em> :</span></p></td>
272
<td>the stride of <em class="parameter"><code>plane</code></em>
273
</td>
274
</tr>
275
<tr>
276
<td><p><span class="term"><em class="parameter"><code>flags</code></em> :</span></p></td>
277
<td><em class="parameter"><code>GstMapFlags</code></em></td>
278
</tr>
279
<tr>
280
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
281
<td>TRUE if the map operation was successful.</td>
282
</tr>
283
</tbody>
284
</table></div>
285
</div>
286
<hr>
287
<div class="refsect2">
288
<a name="gst-video-meta-unmap"></a><h3>gst_video_meta_unmap ()</h3>
289
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_meta_unmap (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> *meta</code></em>,
290
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> plane</code></em>,
291
<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapInfo"><span class="type">GstMapInfo</span></a> *info</code></em>);</pre>
292
<p>
293
Unmap a previously mapped plane with <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-video-meta-map" title="gst_video_meta_map ()"><code class="function">gst_video_meta_map()</code></a>.
294
</p>
295
<div class="variablelist"><table border="0" class="variablelist">
296
<colgroup>
297
<col align="left" valign="top">
298
<col>
299
</colgroup>
300
<tbody>
301
<tr>
302
<td><p><span class="term"><em class="parameter"><code>meta</code></em> :</span></p></td>
303
<td>a <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a>
304
</td>
305
</tr>
306
<tr>
307
<td><p><span class="term"><em class="parameter"><code>plane</code></em> :</span></p></td>
308
<td>a plane</td>
309
</tr>
310
<tr>
311
<td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
312
<td>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMemory.html#GstMapInfo"><span class="type">GstMapInfo</span></a>
313
</td>
314
</tr>
315
<tr>
316
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
317
<td>TRUE if the memory was successfully unmapped.</td>
318
</tr>
319
</tbody>
320
</table></div>
321
</div>
322
<hr>
323
<div class="refsect2">
324
<a name="gst-video-meta-get-info"></a><h3>gst_video_meta_get_info ()</h3>
325
<pre class="programlisting">const <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMetaInfo"><span class="returnvalue">GstMetaInfo</span></a> * gst_video_meta_get_info (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
326
</div>
327
<hr>
328
<div class="refsect2">
329
<a name="gst-buffer-add-video-meta"></a><h3>gst_buffer_add_video_meta ()</h3>
330
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="returnvalue">GstVideoMeta</span></a> * gst_buffer_add_video_meta (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
331
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrameFlags" title="enum GstVideoFrameFlags"><span class="type">GstVideoFrameFlags</span></a> flags</code></em>,
332
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> format</code></em>,
333
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> width</code></em>,
334
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> height</code></em>);</pre>
335
<p>
336
Attaches GstVideoMeta metadata to <em class="parameter"><code>buffer</code></em> with the given parameters and the
337
default offsets and strides for <em class="parameter"><code>format</code></em> and <em class="parameter"><code>width</code></em> x <em class="parameter"><code>height</code></em>.
338
</p>
339
<p>
340
This function calculates the default offsets and strides and then calls
341
<a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-buffer-add-video-meta-full" title="gst_buffer_add_video_meta_full ()"><code class="function">gst_buffer_add_video_meta_full()</code></a> with them.
342
</p>
343
<div class="variablelist"><table border="0" class="variablelist">
344
<colgroup>
345
<col align="left" valign="top">
346
<col>
347
</colgroup>
348
<tbody>
349
<tr>
350
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
351
<td>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a>
352
</td>
353
</tr>
354
<tr>
355
<td><p><span class="term"><em class="parameter"><code>flags</code></em> :</span></p></td>
356
<td><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrameFlags" title="enum GstVideoFrameFlags"><span class="type">GstVideoFrameFlags</span></a></td>
357
</tr>
358
<tr>
359
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
360
<td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a>
361
</td>
362
</tr>
363
<tr>
364
<td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td>
365
<td>the width</td>
366
</tr>
367
<tr>
368
<td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td>
369
<td>the height</td>
370
</tr>
371
<tr>
372
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
373
<td>the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> on <em class="parameter"><code>buffer</code></em>.</td>
374
</tr>
375
</tbody>
376
</table></div>
377
</div>
378
<hr>
379
<div class="refsect2">
380
<a name="gst-buffer-add-video-meta-full"></a><h3>gst_buffer_add_video_meta_full ()</h3>
381
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="returnvalue">GstVideoMeta</span></a> * gst_buffer_add_video_meta_full (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
382
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrameFlags" title="enum GstVideoFrameFlags"><span class="type">GstVideoFrameFlags</span></a> flags</code></em>,
383
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a> format</code></em>,
384
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> width</code></em>,
385
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> height</code></em>,
386
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_planes</code></em>,
387
<em class="parameter"><code><span class="type">gsize</span> offset[GST_VIDEO_MAX_PLANES]</code></em>,
388
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> stride[GST_VIDEO_MAX_PLANES]</code></em>);</pre>
389
<p>
390
Attaches GstVideoMeta metadata to <em class="parameter"><code>buffer</code></em> with the given parameters.
391
</p>
392
<div class="variablelist"><table border="0" class="variablelist">
393
<colgroup>
394
<col align="left" valign="top">
395
<col>
396
</colgroup>
397
<tbody>
398
<tr>
399
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
400
<td>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a>
401
</td>
402
</tr>
403
<tr>
404
<td><p><span class="term"><em class="parameter"><code>flags</code></em> :</span></p></td>
405
<td><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFrameFlags" title="enum GstVideoFrameFlags"><span class="type">GstVideoFrameFlags</span></a></td>
406
</tr>
407
<tr>
408
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
409
<td>a <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoFormat" title="enum GstVideoFormat"><span class="type">GstVideoFormat</span></a>
410
</td>
411
</tr>
412
<tr>
413
<td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td>
414
<td>the width</td>
415
</tr>
416
<tr>
417
<td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td>
418
<td>the height</td>
419
</tr>
420
<tr>
421
<td><p><span class="term"><em class="parameter"><code>n_planes</code></em> :</span></p></td>
422
<td>number of planes</td>
423
</tr>
424
<tr>
425
<td><p><span class="term"><em class="parameter"><code>offset</code></em> :</span></p></td>
426
<td>offset of each plane</td>
427
</tr>
428
<tr>
429
<td><p><span class="term"><em class="parameter"><code>stride</code></em> :</span></p></td>
430
<td>stride of each plane</td>
431
</tr>
432
<tr>
433
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
434
<td>the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> on <em class="parameter"><code>buffer</code></em>.</td>
435
</tr>
436
</tbody>
437
</table></div>
438
</div>
439
<hr>
440
<div class="refsect2">
441
<a name="gst-buffer-get-video-meta"></a><h3>gst_buffer_get_video_meta()</h3>
442
<pre class="programlisting">#define gst_buffer_get_video_meta(b) ((GstVideoMeta*)gst_buffer_get_meta((b),GST_VIDEO_META_API_TYPE))
443
</pre>
444
</div>
445
<hr>
446
<div class="refsect2">
447
<a name="gst-buffer-get-video-meta-id"></a><h3>gst_buffer_get_video_meta_id ()</h3>
448
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="returnvalue">GstVideoMeta</span></a> * gst_buffer_get_video_meta_id (<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
449
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> id</code></em>);</pre>
450
<p>
451
Find the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> on <em class="parameter"><code>buffer</code></em> with the given <em class="parameter"><code>id</code></em>.
452
</p>
453
<p>
454
Buffers can contain multiple <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> metadata items when dealing with
455
multiview buffers.
456
</p>
457
<div class="variablelist"><table border="0" class="variablelist">
458
<colgroup>
459
<col align="left" valign="top">
460
<col>
461
</colgroup>
462
<tbody>
463
<tr>
464
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
465
<td>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a>
466
</td>
467
</tr>
468
<tr>
469
<td><p><span class="term"><em class="parameter"><code>id</code></em> :</span></p></td>
470
<td>a metadata id</td>
471
</tr>
472
<tr>
473
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
474
<td>the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoMeta" title="struct GstVideoMeta"><span class="type">GstVideoMeta</span></a> with <em class="parameter"><code>id</code></em> or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> when there is no such metadata
475
on <em class="parameter"><code>buffer</code></em>.</td>
476
</tr>
477
</tbody>
478
</table></div>
919
<p>Extra data passed to a video transform <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMetaTransformFunction"><span class="type">GstMetaTransformFunction</span></a> such as:
920
"gst-video-scale".</p>
921
<div class="refsect3">
922
<a name="id-1.2.14.4.9.3.5"></a><h4>Members</h4>
923
<div class="informaltable"><table width="100%" border="0">
924
<colgroup>
925
<col width="300px" class="struct_members_name">
926
<col class="struct_members_description">
927
<col width="200px" class="struct_members_annotations">
928
</colgroup>
929
<tbody>
930
<tr>
931
<td class="struct_member_name"><p><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *<em class="structfield"><code><a name="GstVideoMetaTransform.in-info"></a>in_info</code></em>;</p></td>
932
<td class="struct_member_description"><p>the input <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a></p></td>
933
<td class="struct_member_annotations"> </td>
934
</tr>
935
<tr>
936
<td class="struct_member_name"><p><a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a> *<em class="structfield"><code><a name="GstVideoMetaTransform.out-info"></a>out_info</code></em>;</p></td>
937
<td class="struct_member_description"><p>the output <a class="link" href="gst-plugins-base-libs-gstvideo.html#GstVideoInfo" title="struct GstVideoInfo"><span class="type">GstVideoInfo</span></a></p></td>
938
<td class="struct_member_annotations"> </td>
939
</tr>
940
</tbody>
941
</table></div>
942
</div>
479
943
</div>
480
944
<hr>
481
945
<div class="refsect2">
489
953
guint height;
490
954
};
491
955
</pre>
492
<p>
493
Extra buffer metadata describing image cropping.
494
</p>
495
<div class="variablelist"><table border="0" class="variablelist">
956
<p>Extra buffer metadata describing image cropping.</p>
957
<div class="refsect3">
958
<a name="id-1.2.14.4.9.4.5"></a><h4>Members</h4>
959
<div class="informaltable"><table width="100%" border="0">
496
960
<colgroup>
497
<col align="left" valign="top">
498
<col>
961
<col width="300px" class="struct_members_name">
962
<col class="struct_members_description">
963
<col width="200px" class="struct_members_annotations">
499
964
</colgroup>
500
965
<tbody>
501
966
<tr>
502
<td><p><span class="term"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a> <em class="structfield"><code><a name="GstVideoCropMeta.meta"></a>meta</code></em>;</span></p></td>
503
<td>parent <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a>
504
</td>
505
</tr>
506
<tr>
507
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoCropMeta.x"></a>x</code></em>;</span></p></td>
508
<td>the horizontal offset</td>
509
</tr>
510
<tr>
511
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoCropMeta.y"></a>y</code></em>;</span></p></td>
512
<td>the vertical offset</td>
513
</tr>
514
<tr>
515
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoCropMeta.width"></a>width</code></em>;</span></p></td>
516
<td>the cropped width</td>
517
</tr>
518
<tr>
519
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoCropMeta.height"></a>height</code></em>;</span></p></td>
520
<td>the cropped height</td>
967
<td class="struct_member_name"><p><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a> <em class="structfield"><code><a name="GstVideoCropMeta.meta"></a>meta</code></em>;</p></td>
968
<td class="struct_member_description"><p>parent <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a></p></td>
969
<td class="struct_member_annotations"> </td>
970
</tr>
971
<tr>
972
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoCropMeta.x"></a>x</code></em>;</p></td>
973
<td class="struct_member_description"><p>the horizontal offset</p></td>
974
<td class="struct_member_annotations"> </td>
975
</tr>
976
<tr>
977
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoCropMeta.y"></a>y</code></em>;</p></td>
978
<td class="struct_member_description"><p>the vertical offset</p></td>
979
<td class="struct_member_annotations"> </td>
980
</tr>
981
<tr>
982
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoCropMeta.width"></a>width</code></em>;</p></td>
983
<td class="struct_member_description"><p>the cropped width</p></td>
984
<td class="struct_member_annotations"> </td>
985
</tr>
986
<tr>
987
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoCropMeta.height"></a>height</code></em>;</p></td>
988
<td class="struct_member_description"><p>the cropped height</p></td>
989
<td class="struct_member_annotations"> </td>
521
990
</tr>
522
991
</tbody>
523
992
</table></div>
524
993
</div>
525
<hr>
526
<div class="refsect2">
527
<a name="gst-buffer-add-video-crop-meta"></a><h3>gst_buffer_add_video_crop_meta()</h3>
528
<pre class="programlisting">#define gst_buffer_add_video_crop_meta(b) ((GstVideoCropMeta*)gst_buffer_add_meta((b),GST_VIDEO_CROP_META_INFO, NULL))
529
</pre>
530
</div>
531
<hr>
532
<div class="refsect2">
533
<a name="gst-buffer-get-video-crop-meta"></a><h3>gst_buffer_get_video_crop_meta()</h3>
534
<pre class="programlisting">#define gst_buffer_get_video_crop_meta(b) ((GstVideoCropMeta*)gst_buffer_get_meta((b),GST_VIDEO_CROP_META_API_TYPE))
535
</pre>
536
994
</div>
537
995
<hr>
538
996
<div class="refsect2">
550
1008
guint h;
551
1009
} GstVideoRegionOfInterestMeta;
552
1010
</pre>
553
<p>
554
Extra buffer metadata describing an image region of interest
555
</p>
556
<div class="variablelist"><table border="0" class="variablelist">
557
<colgroup>
558
<col align="left" valign="top">
559
<col>
560
</colgroup>
561
<tbody>
562
<tr>
563
<td><p><span class="term"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.meta"></a>meta</code></em>;</span></p></td>
564
<td>parent <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a>
565
</td>
566
</tr>
567
<tr>
568
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.roi-type"></a>roi_type</code></em>;</span></p></td>
569
<td>GQuark describing the semantic of the Roi (f.i. a face, a pedestrian)</td>
570
</tr>
571
<tr>
572
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.id"></a>id</code></em>;</span></p></td>
573
<td>identifier of this particular ROI</td>
574
</tr>
575
<tr>
576
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.parent-id"></a>parent_id</code></em>;</span></p></td>
577
<td>identifier of its parent ROI, used f.i. for ROI hierarchisation.</td>
578
</tr>
579
<tr>
580
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.x"></a>x</code></em>;</span></p></td>
581
<td>x component of upper-left corner</td>
582
</tr>
583
<tr>
584
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.y"></a>y</code></em>;</span></p></td>
585
<td>y component of upper-left corner</td>
586
</tr>
587
<tr>
588
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.w"></a>w</code></em>;</span></p></td>
589
<td></td>
590
</tr>
591
<tr>
592
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.h"></a>h</code></em>;</span></p></td>
593
<td></td>
594
</tr>
595
</tbody>
596
</table></div>
597
</div>
598
<hr>
599
<div class="refsect2">
600
<a name="gst-buffer-add-video-region-of-interest-meta"></a><h3>gst_buffer_add_video_region_of_interest_meta ()</h3>
601
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="returnvalue">GstVideoRegionOfInterestMeta</span></a> * gst_buffer_add_video_region_of_interest_meta
602
(<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
603
<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *roi_type</code></em>,
604
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> x</code></em>,
605
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> y</code></em>,
606
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> w</code></em>,
607
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> h</code></em>);</pre>
608
<p>
609
Attaches <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="type">GstVideoRegionOfInterestMeta</span></a> metadata to <em class="parameter"><code>buffer</code></em> with the given
610
parameters.
611
</p>
612
<div class="variablelist"><table border="0" class="variablelist">
613
<colgroup>
614
<col align="left" valign="top">
615
<col>
616
</colgroup>
617
<tbody>
618
<tr>
619
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
620
<td>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a>
621
</td>
622
</tr>
623
<tr>
624
<td><p><span class="term"><em class="parameter"><code>roi_type</code></em> :</span></p></td>
625
<td>Type of the region of interest (e.g. "face")</td>
626
</tr>
627
<tr>
628
<td><p><span class="term"><em class="parameter"><code>x</code></em> :</span></p></td>
629
<td>X position</td>
630
</tr>
631
<tr>
632
<td><p><span class="term"><em class="parameter"><code>y</code></em> :</span></p></td>
633
<td>Y position</td>
634
</tr>
635
<tr>
636
<td><p><span class="term"><em class="parameter"><code>w</code></em> :</span></p></td>
637
<td>width</td>
638
</tr>
639
<tr>
640
<td><p><span class="term"><em class="parameter"><code>h</code></em> :</span></p></td>
641
<td>height</td>
642
</tr>
643
<tr>
644
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
645
<td>the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="type">GstVideoRegionOfInterestMeta</span></a> on <em class="parameter"><code>buffer</code></em>.</td>
646
</tr>
647
</tbody>
648
</table></div>
649
</div>
650
<hr>
651
<div class="refsect2">
652
<a name="gst-buffer-add-video-region-of-interest-meta-id"></a><h3>gst_buffer_add_video_region_of_interest_meta_id ()</h3>
653
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="returnvalue">GstVideoRegionOfInterestMeta</span></a> * gst_buffer_add_video_region_of_interest_meta_id
654
(<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
655
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> roi_type</code></em>,
656
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> x</code></em>,
657
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> y</code></em>,
658
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> w</code></em>,
659
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> h</code></em>);</pre>
660
<p>
661
Attaches <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="type">GstVideoRegionOfInterestMeta</span></a> metadata to <em class="parameter"><code>buffer</code></em> with the given
662
parameters.
663
</p>
664
<div class="variablelist"><table border="0" class="variablelist">
665
<colgroup>
666
<col align="left" valign="top">
667
<col>
668
</colgroup>
669
<tbody>
670
<tr>
671
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
672
<td>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a>
673
</td>
674
</tr>
675
<tr>
676
<td><p><span class="term"><em class="parameter"><code>roi_type</code></em> :</span></p></td>
677
<td>Type of the region of interest (e.g. "face")</td>
678
</tr>
679
<tr>
680
<td><p><span class="term"><em class="parameter"><code>x</code></em> :</span></p></td>
681
<td>X position</td>
682
</tr>
683
<tr>
684
<td><p><span class="term"><em class="parameter"><code>y</code></em> :</span></p></td>
685
<td>Y position</td>
686
</tr>
687
<tr>
688
<td><p><span class="term"><em class="parameter"><code>w</code></em> :</span></p></td>
689
<td>width</td>
690
</tr>
691
<tr>
692
<td><p><span class="term"><em class="parameter"><code>h</code></em> :</span></p></td>
693
<td>height</td>
694
</tr>
695
<tr>
696
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
697
<td>the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="type">GstVideoRegionOfInterestMeta</span></a> on <em class="parameter"><code>buffer</code></em>.</td>
698
</tr>
699
</tbody>
700
</table></div>
701
</div>
702
<hr>
703
<div class="refsect2">
704
<a name="gst-buffer-get-video-region-of-interest-meta"></a><h3>gst_buffer_get_video_region_of_interest_meta()</h3>
705
<pre class="programlisting">#define gst_buffer_get_video_region_of_interest_meta(b)</pre>
706
</div>
707
<hr>
708
<div class="refsect2">
709
<a name="gst-buffer-get-video-region-of-interest-meta-id"></a><h3>gst_buffer_get_video_region_of_interest_meta_id ()</h3>
710
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="returnvalue">GstVideoRegionOfInterestMeta</span></a> * gst_buffer_get_video_region_of_interest_meta_id
711
(<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
712
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> id</code></em>);</pre>
713
<p>
714
Find the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="type">GstVideoRegionOfInterestMeta</span></a> on <em class="parameter"><code>buffer</code></em> with the given <em class="parameter"><code>id</code></em>.
715
</p>
716
<p>
717
Buffers can contain multiple <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoRegionOfInterestMeta" title="GstVideoRegionOfInterestMeta"><span class="type">GstVideoRegionOfInterestMeta</span></a> metadata items if
718
multiple regions of interests are marked on a frame.
719
</p>
720
<div class="variablelist"><table border="0" class="variablelist">
721
<colgroup>
722
<col align="left" valign="top">
723
<col>
724
</colgroup>
725
<tbody>
726
<tr>
727
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
728
<td>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a>
729
</td>
730
</tr>
731
<tr>
732
<td><p><span class="term"><em class="parameter"><code>id</code></em> :</span></p></td>
733
<td>a metadata id</td>
734
</tr>
735
<tr>
736
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
737
<td>the <span class="type">GstVideoeRegionOfInterestMeta</span> with <em class="parameter"><code>id</code></em> or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> when there is
738
no such metadata on <em class="parameter"><code>buffer</code></em>.</td>
739
</tr>
740
</tbody>
741
</table></div>
742
</div>
743
<hr>
744
<div class="refsect2">
745
<a name="GstVideoGLTextureUpload"></a><h3>GstVideoGLTextureUpload ()</h3>
746
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> (*GstVideoGLTextureUpload) (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta"><span class="type">GstVideoGLTextureUploadMeta</span></a> *meta</code></em>,
747
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> texture_id[4]</code></em>);</pre>
1011
<p>Extra buffer metadata describing an image region of interest</p>
1012
<div class="refsect3">
1013
<a name="id-1.2.14.4.9.5.5"></a><h4>Members</h4>
1014
<div class="informaltable"><table width="100%" border="0">
1015
<colgroup>
1016
<col width="300px" class="struct_members_name">
1017
<col class="struct_members_description">
1018
<col width="200px" class="struct_members_annotations">
1019
</colgroup>
1020
<tbody>
1021
<tr>
1022
<td class="struct_member_name"><p><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.meta"></a>meta</code></em>;</p></td>
1023
<td class="struct_member_description"><p>parent <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a></p></td>
1024
<td class="struct_member_annotations"> </td>
1025
</tr>
1026
<tr>
1027
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.roi-type"></a>roi_type</code></em>;</p></td>
1028
<td class="struct_member_description"><p>GQuark describing the semantic of the Roi (f.i. a face, a pedestrian)</p></td>
1029
<td class="struct_member_annotations"> </td>
1030
</tr>
1031
<tr>
1032
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.id"></a>id</code></em>;</p></td>
1033
<td class="struct_member_description"><p>identifier of this particular ROI</p></td>
1034
<td class="struct_member_annotations"> </td>
1035
</tr>
1036
<tr>
1037
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.parent-id"></a>parent_id</code></em>;</p></td>
1038
<td class="struct_member_description"><p>identifier of its parent ROI, used f.i. for ROI hierarchisation.</p></td>
1039
<td class="struct_member_annotations"> </td>
1040
</tr>
1041
<tr>
1042
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.x"></a>x</code></em>;</p></td>
1043
<td class="struct_member_description"><p>x component of upper-left corner</p></td>
1044
<td class="struct_member_annotations"> </td>
1045
</tr>
1046
<tr>
1047
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.y"></a>y</code></em>;</p></td>
1048
<td class="struct_member_description"><p>y component of upper-left corner</p></td>
1049
<td class="struct_member_annotations"> </td>
1050
</tr>
1051
<tr>
1052
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.w"></a>w</code></em>;</p></td>
1053
<td> </td>
1054
<td> </td>
1055
</tr>
1056
<tr>
1057
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoRegionOfInterestMeta.h"></a>h</code></em>;</p></td>
1058
<td> </td>
1059
<td> </td>
1060
</tr>
1061
</tbody>
1062
</table></div>
1063
</div>
748
1064
</div>
749
1065
<hr>
750
1066
<div class="refsect2">
757
1073
GstVideoGLTextureType texture_type[4];
758
1074
};
759
1075
</pre>
760
<p>
761
Extra buffer metadata for uploading a buffer to an OpenGL texture
762
ID. The caller of <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-video-gl-texture-upload-meta-upload" title="gst_video_gl_texture_upload_meta_upload ()"><code class="function">gst_video_gl_texture_upload_meta_upload()</code></a> must
1076
<p>Extra buffer metadata for uploading a buffer to an OpenGL texture
1077
ID. The caller of <a class="link" href="gst-plugins-base-libs-gstvideometa.html#gst-video-gl-texture-upload-meta-upload" title="gst_video_gl_texture_upload_meta_upload ()"><code class="function">gst_video_gl_texture_upload_meta_upload()</code></a> must
763
1078
have OpenGL set up and call this from a thread where it is valid
764
to upload something to an OpenGL texture.
765
</p>
766
<div class="variablelist"><table border="0" class="variablelist">
767
<colgroup>
768
<col align="left" valign="top">
769
<col>
770
</colgroup>
771
<tbody>
772
<tr>
773
<td><p><span class="term"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a> <em class="structfield"><code><a name="GstVideoGLTextureUploadMeta.meta"></a>meta</code></em>;</span></p></td>
774
<td>parent <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a>
775
</td>
776
</tr>
777
<tr>
778
<td><p><span class="term"><span class="type">GstVideoGLTextureOrientation</span> <em class="structfield"><code><a name="GstVideoGLTextureUploadMeta.texture-orientation"></a>texture_orientation</code></em>;</span></p></td>
779
<td>Orientation of the textures</td>
780
</tr>
781
<tr>
782
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoGLTextureUploadMeta.n-textures"></a>n_textures</code></em>;</span></p></td>
783
<td>Number of textures that are generated</td>
784
</tr>
785
<tr>
786
<td><p><span class="term"><span class="type">GstVideoGLTextureType</span> <em class="structfield"><code><a name="GstVideoGLTextureUploadMeta.texture-type"></a>texture_type</code></em>[4];</span></p></td>
787
<td>Type of each texture</td>
788
</tr>
789
</tbody>
790
</table></div>
791
</div>
792
<hr>
793
<div class="refsect2">
794
<a name="gst-buffer-add-video-gl-texture-upload-meta"></a><h3>gst_buffer_add_video_gl_texture_upload_meta ()</h3>
795
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta"><span class="returnvalue">GstVideoGLTextureUploadMeta</span></a> * gst_buffer_add_video_gl_texture_upload_meta
796
(<em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a> *buffer</code></em>,
797
<em class="parameter"><code><span class="type">GstVideoGLTextureOrientation</span> texture_orientation</code></em>,
798
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_textures</code></em>,
799
<em class="parameter"><code><span class="type">GstVideoGLTextureType</span> texture_type[4]</code></em>,
800
<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUpload" title="GstVideoGLTextureUpload ()"><span class="type">GstVideoGLTextureUpload</span></a> upload</code></em>,
801
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>,
802
<em class="parameter"><code><a href="http://library.gnome.org/devel/gobject/unstable/gobject-Boxed-Types.html#GBoxedCopyFunc"><span class="type">GBoxedCopyFunc</span></a> user_data_copy</code></em>,
803
<em class="parameter"><code><a href="http://library.gnome.org/devel/gobject/unstable/gobject-Boxed-Types.html#GBoxedFreeFunc"><span class="type">GBoxedFreeFunc</span></a> user_data_free</code></em>);</pre>
804
<p>
805
Attaches GstVideoGLTextureUploadMeta metadata to <em class="parameter"><code>buffer</code></em> with the given
806
parameters.
807
</p>
808
<div class="variablelist"><table border="0" class="variablelist">
809
<colgroup>
810
<col align="left" valign="top">
811
<col>
812
</colgroup>
813
<tbody>
814
<tr>
815
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
816
<td>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a>
817
</td>
818
</tr>
819
<tr>
820
<td><p><span class="term"><em class="parameter"><code>upload</code></em> :</span></p></td>
821
<td>the function to upload the buffer to a specific texture ID</td>
822
</tr>
823
<tr>
824
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
825
<td>user data for the implementor of <em class="parameter"><code>upload</code></em>
826
</td>
827
</tr>
828
<tr>
829
<td><p><span class="term"><em class="parameter"><code>user_data_copy</code></em> :</span></p></td>
830
<td>function to copy <em class="parameter"><code>user_data</code></em>
831
</td>
832
</tr>
833
<tr>
834
<td><p><span class="term"><em class="parameter"><code>user_data_free</code></em> :</span></p></td>
835
<td>function to free <em class="parameter"><code>user_data</code></em>
836
</td>
837
</tr>
838
<tr>
839
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
840
<td>the <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta"><span class="type">GstVideoGLTextureUploadMeta</span></a> on <em class="parameter"><code>buffer</code></em>.</td>
841
</tr>
842
</tbody>
843
</table></div>
844
</div>
845
<hr>
846
<div class="refsect2">
847
<a name="gst-buffer-get-video-gl-texture-upload-meta"></a><h3>gst_buffer_get_video_gl_texture_upload_meta()</h3>
848
<pre class="programlisting">#define gst_buffer_get_video_gl_texture_upload_meta(b) ((GstVideoGLTextureUploadMeta*)gst_buffer_get_meta((b),GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE))
849
</pre>
850
</div>
851
<hr>
852
<div class="refsect2">
853
<a name="gst-video-gl-texture-upload-meta-upload"></a><h3>gst_video_gl_texture_upload_meta_upload ()</h3>
854
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_video_gl_texture_upload_meta_upload
855
(<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta"><span class="type">GstVideoGLTextureUploadMeta</span></a> *meta</code></em>,
856
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> texture_id[4]</code></em>);</pre>
857
<p>
858
Uploads the buffer which owns the meta to a specific texture ID.
859
</p>
860
<div class="variablelist"><table border="0" class="variablelist">
861
<colgroup>
862
<col align="left" valign="top">
863
<col>
864
</colgroup>
865
<tbody>
866
<tr>
867
<td><p><span class="term"><em class="parameter"><code>meta</code></em> :</span></p></td>
868
<td>a <a class="link" href="gst-plugins-base-libs-gstvideometa.html#GstVideoGLTextureUploadMeta" title="struct GstVideoGLTextureUploadMeta"><span class="type">GstVideoGLTextureUploadMeta</span></a>
869
</td>
870
</tr>
871
<tr>
872
<td><p><span class="term"><em class="parameter"><code>texture_id</code></em> :</span></p></td>
873
<td>the texture IDs to upload to</td>
874
</tr>
875
<tr>
876
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
877
<td>
878
<a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if uploading succeeded, <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</td>
879
</tr>
880
</tbody>
881
</table></div>
1079
to upload something to an OpenGL texture.</p>
1080
<div class="refsect3">
1081
<a name="id-1.2.14.4.9.6.5"></a><h4>Members</h4>
1082
<div class="informaltable"><table width="100%" border="0">
1083
<colgroup>
1084
<col width="300px" class="struct_members_name">
1085
<col class="struct_members_description">
1086
<col width="200px" class="struct_members_annotations">
1087
</colgroup>
1088
<tbody>
1089
<tr>
1090
<td class="struct_member_name"><p><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a> <em class="structfield"><code><a name="GstVideoGLTextureUploadMeta.meta"></a>meta</code></em>;</p></td>
1091
<td class="struct_member_description"><p>parent <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a></p></td>
1092
<td class="struct_member_annotations"> </td>
1093
</tr>
1094
<tr>
1095
<td class="struct_member_name"><p><span class="type">GstVideoGLTextureOrientation</span> <em class="structfield"><code><a name="GstVideoGLTextureUploadMeta.texture-orientation"></a>texture_orientation</code></em>;</p></td>
1096
<td class="struct_member_description"><p>Orientation of the textures</p></td>
1097
<td class="struct_member_annotations"> </td>
1098
</tr>
1099
<tr>
1100
<td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GstVideoGLTextureUploadMeta.n-textures"></a>n_textures</code></em>;</p></td>
1101
<td class="struct_member_description"><p>Number of textures that are generated</p></td>
1102
<td class="struct_member_annotations"> </td>
1103
</tr>
1104
<tr>
1105
<td class="struct_member_name"><p><span class="type">GstVideoGLTextureType</span> <em class="structfield"><code><a name="GstVideoGLTextureUploadMeta.texture-type"></a>texture_type</code></em>[4];</p></td>
1106
<td class="struct_member_description"><p>Type of each texture</p></td>
1107
<td class="struct_member_annotations"> </td>
1108
</tr>
1109
</tbody>
1110
</table></div>
1111
</div>
882
1112
</div>
883
1113
</div>
884
1114
</div>
885
1115
<div class="footer">
886
1116
<hr>
887
Generated by GTK-Doc V1.19</div>
1117
Generated by GTK-Doc V1.20</div>
888
1118
</body>
889
1119
</html>
b'\\ No newline at end of file'
Loggerhead is a web-based interface for Breezy
Version: 2.0.1