2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3 * Copyright (C) <2003> David Schleef <ds@schleef.org>
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.
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.
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.
22 /*#define DEBUG_ENABLED */
23 #include <gstvideotemplate.h>
26 /* elementfactory information */
27 static GstElementDetails videotemplate_details = {
28 "Video Filter Template",
31 "Template for a video filter",
33 "David Schleef <ds@schleef.org>",
37 /* GstVideotemplate signals and args */
48 static void gst_videotemplate_class_init (GstVideotemplateClass *klass);
49 static void gst_videotemplate_init (GstVideotemplate *videotemplate);
51 static void gst_videotemplate_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
52 static void gst_videotemplate_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
54 static void gst_videotemplate_planar411(GstVideofilter *videofilter, void *dest, void *src);
55 static void gst_videotemplate_setup(GstVideofilter *videofilter);
57 static GstVideotemplateClass *this_class = NULL;
58 static GstVideofilterClass *parent_class = NULL;
59 static GstElementClass *element_class = NULL;
62 gst_videotemplate_get_type (void)
64 static GType videotemplate_type = 0;
66 if (!videotemplate_type) {
67 static const GTypeInfo videotemplate_info = {
68 sizeof(GstVideotemplateClass), NULL,
70 (GClassInitFunc)gst_videotemplate_class_init,
73 sizeof(GstVideotemplate),
75 (GInstanceInitFunc)gst_videotemplate_init,
77 videotemplate_type = g_type_register_static(GST_TYPE_VIDEOFILTER, "GstVideotemplate", &videotemplate_info, 0);
79 return videotemplate_type;
82 static GstVideofilterFormat gst_videotemplate_formats[] = {
83 { "I420", 12, gst_videotemplate_planar411, },
87 gst_videotemplate_class_init (GstVideotemplateClass *klass)
89 GObjectClass *gobject_class;
90 GstElementClass *gstelement_class;
91 GstVideofilterClass *gstvideofilter_class;
94 gobject_class = (GObjectClass*)klass;
95 gstelement_class = (GstElementClass*)klass;
96 gstvideofilter_class = (GstVideofilterClass *)klass;
99 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_METHOD,
100 g_param_spec_enum("method","method","method",
101 GST_TYPE_VIDEOTEMPLATE_METHOD, GST_VIDEOTEMPLATE_METHOD_90R,
106 parent_class = g_type_class_ref(GST_TYPE_VIDEOFILTER);
107 element_class = g_type_class_ref(GST_TYPE_ELEMENT);
109 gobject_class->set_property = gst_videotemplate_set_property;
110 gobject_class->get_property = gst_videotemplate_get_property;
112 gstvideofilter_class->setup = gst_videotemplate_setup;
114 for(i=0;i<G_N_ELEMENTS(gst_videotemplate_formats);i++){
115 gst_videofilter_class_add_format(parent_class, gst_videotemplate_formats + i);
119 static GstCaps *gst_videotemplate_get_capslist(void)
121 GstVideofilterClass *klass;
123 klass = g_type_class_ref(GST_TYPE_VIDEOFILTER);
125 return gst_videofilter_class_get_capslist(klass);
128 static GstPadTemplate *
129 gst_videotemplate_src_template_factory(void)
131 static GstPadTemplate *templ = NULL;
134 GstCaps *caps = GST_CAPS_NEW("src","video/raw",
135 "width", GST_PROPS_INT_RANGE (0, G_MAXINT),
136 "height", GST_PROPS_INT_RANGE (0, G_MAXINT));
138 caps = gst_caps_intersect(caps, gst_videotemplate_get_capslist ());
140 templ = GST_PAD_TEMPLATE_NEW("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps);
145 static GstPadTemplate *
146 gst_videotemplate_sink_template_factory(void)
148 static GstPadTemplate *templ = NULL;
151 GstCaps *caps = GST_CAPS_NEW("sink","video/raw",
152 "width", GST_PROPS_INT_RANGE (0, G_MAXINT),
153 "height", GST_PROPS_INT_RANGE (0, G_MAXINT));
155 caps = gst_caps_intersect(caps, gst_videotemplate_get_capslist ());
157 templ = GST_PAD_TEMPLATE_NEW("src", GST_PAD_SINK, GST_PAD_ALWAYS, caps);
163 gst_videotemplate_init (GstVideotemplate *videotemplate)
165 GstVideofilter *videofilter;
167 GST_DEBUG("gst_videotemplate_init");
169 videofilter = GST_VIDEOFILTER(videotemplate);
171 videofilter->sinkpad = gst_pad_new_from_template (
172 GST_PAD_TEMPLATE_GET (gst_videotemplate_sink_template_factory),
175 videofilter->srcpad = gst_pad_new_from_template (
176 GST_PAD_TEMPLATE_GET (gst_videotemplate_src_template_factory),
179 gst_videofilter_postinit(GST_VIDEOFILTER(videotemplate));
183 gst_videotemplate_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
185 GstVideotemplate *src;
187 /* it's not null if we got it, but it might not be ours */
188 g_return_if_fail(GST_IS_VIDEOTEMPLATE(object));
189 src = GST_VIDEOTEMPLATE(object);
191 GST_DEBUG("gst_videotemplate_set_property");
195 src->method = g_value_get_enum (value);
204 gst_videotemplate_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
206 GstVideotemplate *src;
208 /* it's not null if we got it, but it might not be ours */
209 g_return_if_fail(GST_IS_VIDEOTEMPLATE(object));
210 src = GST_VIDEOTEMPLATE(object);
215 g_value_set_enum (value, src->method);
219 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
224 static gboolean plugin_init (GModule *module, GstPlugin *plugin)
226 GstElementFactory *factory;
228 if(!gst_library_load("gstvideofilter"))
231 /* create an elementfactory for the videotemplate element */
232 factory = gst_element_factory_new("videotemplate",GST_TYPE_VIDEOTEMPLATE,
233 &videotemplate_details);
234 g_return_val_if_fail(factory != NULL, FALSE);
236 gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (gst_videotemplate_sink_template_factory));
237 gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (gst_videotemplate_src_template_factory));
239 gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
244 GstPluginDesc plugin_desc = {
251 static void gst_videotemplate_setup(GstVideofilter *videofilter)
253 GstVideotemplate *videotemplate;
255 g_return_if_fail(GST_IS_VIDEOTEMPLATE(videofilter));
256 videotemplate = GST_VIDEOTEMPLATE(videofilter);
258 /* if any setup needs to be done, do it here */
262 static void gst_videotemplate_planar411(GstVideofilter *videofilter,
263 void *dest, void *src)
265 GstVideotemplate *videotemplate;
267 g_return_if_fail(GST_IS_VIDEOTEMPLATE(videofilter));
268 videotemplate = GST_VIDEOTEMPLATE(videofilter);
270 /* do something interesting here */