2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
5 * Copyright (C) 2000 Donald A. Graft
7 * This library is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10 * Library General Public License for more details.
12 * You should have received a copy of the GNU Library General Public
13 * License along with this library; if not, write to the
14 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
15 * Boston, MA 02111-1307, USA.
24 #include "gstmngenc.h"
25 #include <gst/video/video.h>
27 #define MAX_HEIGHT 4096
30 GstElementDetails gst_mngenc_details = {
32 "Codec/Encoder/Image",
33 "Encode a video frame to an .mng video",
34 "Wim Taymans <wim@fluendo.com>",
38 /* Filter signals and args */
45 #define DEFAULT_SNAPSHOT TRUE
54 static void gst_mngenc_base_init (gpointer g_class);
55 static void gst_mngenc_class_init (GstMngEncClass * klass);
56 static void gst_mngenc_init (GstMngEnc * mngenc);
57 static void gst_mngenc_set_property (GObject * object,
58 guint prop_id, const GValue * value, GParamSpec * pspec);
59 static void gst_mngenc_get_property (GObject * object,
60 guint prop_id, GValue * value, GParamSpec * pspec);
62 static void gst_mngenc_chain (GstPad * pad, GstData * _data);
64 GstPadTemplate *mngenc_src_template, *mngenc_sink_template;
66 static GstElementClass *parent_class = NULL;
70 gst_mngenc_get_type (void)
72 static GType mngenc_type = 0;
75 static const GTypeInfo mngenc_info = {
76 sizeof (GstMngEncClass),
79 (GClassInitFunc) gst_mngenc_class_init,
84 (GInstanceInitFunc) gst_mngenc_init,
87 mngenc_type = g_type_register_static (GST_TYPE_ELEMENT, "GstMngEnc",
94 mng_caps_factory (void)
96 return gst_caps_new_simple ("video/x-mng",
97 "width", GST_TYPE_INT_RANGE, 16, 4096,
98 "height", GST_TYPE_INT_RANGE, 16, 4096,
99 "framerate", GST_TYPE_DOUBLE_RANGE, 0.0, G_MAXDOUBLE, NULL);
104 raw_caps_factory (void)
106 return gst_caps_from_string (GST_VIDEO_CAPS_RGB);
110 gst_mngenc_base_init (gpointer g_class)
112 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
113 GstCaps *raw_caps, *mng_caps;
115 raw_caps = raw_caps_factory ();
116 mng_caps = mng_caps_factory ();
118 mngenc_sink_template = gst_pad_template_new ("sink", GST_PAD_SINK,
119 GST_PAD_ALWAYS, raw_caps);
121 mngenc_src_template = gst_pad_template_new ("src", GST_PAD_SRC,
122 GST_PAD_ALWAYS, mng_caps);
124 gst_element_class_add_pad_template (element_class, mngenc_sink_template);
125 gst_element_class_add_pad_template (element_class, mngenc_src_template);
126 gst_element_class_set_details (element_class, &gst_mngenc_details);
130 gst_mngenc_class_init (GstMngEncClass * klass)
132 GObjectClass *gobject_class;
133 GstElementClass *gstelement_class;
135 gobject_class = (GObjectClass *) klass;
136 gstelement_class = (GstElementClass *) klass;
138 parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
140 g_object_class_install_property (gobject_class, ARG_SNAPSHOT,
141 g_param_spec_boolean ("snapshot", "Snapshot",
142 "Send EOS after encoding a frame, useful for snapshots",
143 DEFAULT_SNAPSHOT, (GParamFlags) G_PARAM_READWRITE));
145 g_object_class_install_property (gobject_class, ARG_NEWMEDIA,
146 g_param_spec_boolean ("newmedia", "newmedia",
147 "Send new media discontinuity after encoding each frame",
148 FALSE, (GParamFlags) G_PARAM_READWRITE));
150 gstelement_class->get_property = gst_mngenc_get_property;
151 gstelement_class->set_property = gst_mngenc_set_property;
155 static GstPadLinkReturn
156 gst_mngenc_sinklink (GstPad * pad, const GstCaps * caps)
160 GstStructure *structure;
161 GstPadLinkReturn result;
163 mngenc = GST_MNGENC (gst_pad_get_parent (pad));
165 structure = gst_caps_get_structure (caps, 0);
166 gst_structure_get_int (structure, "width", &mngenc->width);
167 gst_structure_get_int (structure, "height", &mngenc->height);
168 gst_structure_get_double (structure, "framerate", &fps);
169 gst_structure_get_int (structure, "bpp", &mngenc->bpp);
171 caps = gst_caps_new_simple ("video/x-mng",
172 "framerate", G_TYPE_DOUBLE, fps,
173 "width", G_TYPE_INT, mngenc->width,
174 "height", G_TYPE_INT, mngenc->height, NULL);
176 result = gst_pad_try_set_caps (mngenc->srcpad, caps);
177 gst_object_unref (mngenc);
183 gst_mngenc_init (GstMngEnc * mngenc)
185 mngenc->sinkpad = gst_pad_new_from_template (mngenc_sink_template, "sink");
186 gst_element_add_pad (GST_ELEMENT (mngenc), mngenc->sinkpad);
188 mngenc->srcpad = gst_pad_new ("src", GST_PAD_SRC);
189 gst_element_add_pad (GST_ELEMENT (mngenc), mngenc->srcpad);
191 gst_pad_set_chain_function (mngenc->sinkpad, gst_mngenc_chain);
192 gst_pad_set_link_function (mngenc->sinkpad, gst_mngenc_sinklink);
194 mngenc->snapshot = DEFAULT_SNAPSHOT;
195 mngenc->newmedia = FALSE;
199 gst_mngenc_chain (GstPad * pad, GstData * _data)
201 GstBuffer *buf = GST_BUFFER (_data);
204 mngenc = GST_MNGENC (gst_pad_get_parent (pad));
206 /* FIXME, do something here */
208 gst_buffer_unref (buf);
209 gst_object_unref (mngenc);
214 gst_mngenc_get_property (GObject * object,
215 guint prop_id, GValue * value, GParamSpec * pspec)
219 mngenc = GST_MNGENC (object);
223 g_value_set_boolean (value, mngenc->snapshot);
226 g_value_set_boolean (value, mngenc->newmedia);
229 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
236 gst_mngenc_set_property (GObject * object,
237 guint prop_id, const GValue * value, GParamSpec * pspec)
241 mngenc = GST_MNGENC (object);
245 mngenc->snapshot = g_value_get_boolean (value);
248 mngenc->newmedia = g_value_get_boolean (value);
251 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);