1 /* Gstreamer Editing Services
2 *
3 * Copyright (C) <2011> Thibault Saunier <thibault.saunier@collabora.com>
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
19 */
20 /**
21 * SECTION: gesclipasset
22 * @title: GESClipAsset
23 * @short_description: A GESAsset subclass specialized in GESClip extraction
24 *
25 * The #GESUriClipAsset is a special #GESAsset specilized in #GESClip.
26 * it is mostly used to get information about the #GESTrackType-s the objects extracted
27 * from it can potentialy create #GESTrackElement for.
28 */
29 #ifdef HAVE_CONFIG_H
30 #include "config.h"
31 #endif
32
33 #include "ges-clip-asset.h"
34
35 #define GES_CLIP_ASSET_GET_PRIVATE(o)\
36 (G_TYPE_INSTANCE_GET_PRIVATE ((o), GES_TYPE_CLIP_ASSET, \
37 GESClipAssetPrivate))
38
39 #define parent_class ges_clip_asset_parent_class
40
41 struct _GESClipAssetPrivate
42 {
43 GESTrackType supportedformats;
44 };
45
46
47 enum
48 {
49 PROP_0,
50 PROP_SUPPORTED_FORMATS,
51 PROP_LAST
52 };
53
54 static GParamSpec *properties[PROP_LAST];
55
56 G_DEFINE_TYPE_WITH_PRIVATE (GESClipAsset, ges_clip_asset, GES_TYPE_ASSET);
57
58 /***********************************************
59 * *
60 * GObject vmetods implemenation *
61 * *
62 ***********************************************/
63
64 static void
_get_property(GObject * object,guint property_id,GValue * value,GParamSpec * pspec)65 _get_property (GObject * object, guint property_id,
66 GValue * value, GParamSpec * pspec)
67 {
68 GESClipAssetPrivate *priv = GES_CLIP_ASSET (object)->priv;
69 switch (property_id) {
70 case PROP_SUPPORTED_FORMATS:
71 g_value_set_flags (value, priv->supportedformats);
72 break;
73 default:
74 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
75 }
76 }
77
78 static void
_set_property(GObject * object,guint property_id,const GValue * value,GParamSpec * pspec)79 _set_property (GObject * object, guint property_id,
80 const GValue * value, GParamSpec * pspec)
81 {
82 GESClipAssetPrivate *priv = GES_CLIP_ASSET (object)->priv;
83
84 switch (property_id) {
85 case PROP_SUPPORTED_FORMATS:
86 priv->supportedformats = g_value_get_flags (value);
87 break;
88 default:
89 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
90 }
91 }
92
93 static void
ges_clip_asset_init(GESClipAsset * self)94 ges_clip_asset_init (GESClipAsset * self)
95 {
96 self->priv = ges_clip_asset_get_instance_private (self);
97 }
98
99 static void
_constructed(GObject * object)100 _constructed (GObject * object)
101 {
102 GType extractable_type = ges_asset_get_extractable_type (GES_ASSET (object));
103 GObjectClass *class = g_type_class_ref (extractable_type);
104 GParamSpecFlags *pspec;
105
106 pspec = G_PARAM_SPEC_FLAGS (g_object_class_find_property (class,
107 "supported-formats"));
108
109 GES_CLIP_ASSET (object)->priv->supportedformats = pspec->default_value;
110 g_type_class_unref (class);
111
112 G_OBJECT_CLASS (parent_class)->constructed (object);
113 }
114
115 static void
ges_clip_asset_class_init(GESClipAssetClass * self_class)116 ges_clip_asset_class_init (GESClipAssetClass * self_class)
117 {
118 GObjectClass *object_class = G_OBJECT_CLASS (self_class);
119
120 object_class->constructed = _constructed;
121 object_class->get_property = _get_property;
122 object_class->set_property = _set_property;
123
124 /**
125 * GESClipAsset:supported-formats:
126 *
127 * The formats supported by the asset.
128 */
129 properties[PROP_SUPPORTED_FORMATS] = g_param_spec_flags ("supported-formats",
130 "Supported formats", "Formats supported by the file",
131 GES_TYPE_TRACK_TYPE, GES_TRACK_TYPE_AUDIO | GES_TRACK_TYPE_VIDEO,
132 G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
133
134 g_object_class_install_property (object_class, PROP_SUPPORTED_FORMATS,
135 properties[PROP_SUPPORTED_FORMATS]);
136 }
137
138 /***********************************************
139 * *
140 * Public methods *
141 * *
142 ***********************************************/
143 /**
144 * ges_clip_asset_set_supported_formats:
145 * @self: a #GESClipAsset
146 * @supportedformats: The track types supported by the GESClipAsset
147 *
148 * Sets track types for which objects extracted from @self can create #GESTrackElement
149 */
150 void
ges_clip_asset_set_supported_formats(GESClipAsset * self,GESTrackType supportedformats)151 ges_clip_asset_set_supported_formats (GESClipAsset * self,
152 GESTrackType supportedformats)
153 {
154 g_return_if_fail (GES_IS_CLIP_ASSET (self));
155
156 self->priv->supportedformats = supportedformats;
157 }
158
159 /**
160 * ges_clip_asset_get_supported_formats:
161 * @self: a #GESClipAsset
162 *
163 * Gets track types for which objects extracted from @self can create #GESTrackElement
164 *
165 * Returns: The track types on which @self will create TrackElement when added to
166 * a layer
167 */
168 GESTrackType
ges_clip_asset_get_supported_formats(GESClipAsset * self)169 ges_clip_asset_get_supported_formats (GESClipAsset * self)
170 {
171 g_return_val_if_fail (GES_IS_CLIP_ASSET (self), GES_TRACK_TYPE_UNKNOWN);
172
173 return self->priv->supportedformats;
174 }
175