1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wim.taymans@chello.be>
*
* gsttee.c: Tee element, one in N out
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "gsttee.h"
GstElementDetails gst_tee_details = {
"Tee pipe fitting",
"Tee",
"1-to-N pipe fitting",
VERSION,
"Erik Walthinsen <omega@cse.ogi.edu>\n"
"Wim Taymans <wim.taymans@chello.be>",
"(C) 1999, 2000",
};
/* Tee signals and args */
enum {
/* FILL ME */
LAST_SIGNAL
};
enum {
ARG_0,
ARG_NUM_PADS,
/* FILL ME */
};
static GstPadTemplate*
tee_src_factory_create (void)
{
return
gst_padtemplate_new (
"src%d",
GST_PAD_SRC,
GST_PAD_REQUEST,
NULL /* no caps */
);
}
static void gst_tee_class_init (GstTeeClass *klass);
static void gst_tee_init (GstTee *tee);
static GstPad* gst_tee_request_new_pad (GstElement *element, GstPadTemplate *temp);
static void gst_tee_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void gst_tee_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
static void gst_tee_chain (GstPad *pad, GstBuffer *buf);
static GstElementClass *parent_class = NULL;
//static guint gst_tee_signals[LAST_SIGNAL] = { 0 };
static GstPadTemplate *gst_tee_src_template;
GType
gst_tee_get_type(void) {
static GType tee_type = 0;
if (!tee_type) {
static const GTypeInfo tee_info = {
sizeof(GstTeeClass), NULL,
NULL,
(GClassInitFunc)gst_tee_class_init,
NULL,
NULL,
sizeof(GstTee),
0,
(GInstanceInitFunc)gst_tee_init,
};
tee_type = g_type_register_static (GST_TYPE_ELEMENT, "GstTee", &tee_info, 0);
}
return tee_type;
}
static void
gst_tee_class_init (GstTeeClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NUM_PADS,
g_param_spec_int("num_pads","num_pads","num_pads",
G_MININT,G_MAXINT,0,G_PARAM_READABLE)); // CHECKME
gobject_class->set_property = gst_tee_set_property;
gobject_class->get_property = gst_tee_get_property;
gstelement_class->request_new_pad = gst_tee_request_new_pad;
}
static void
gst_tee_init (GstTee *tee)
{
tee->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
gst_pad_set_chain_function (tee->sinkpad, gst_tee_chain);
tee->numsrcpads = 0;
tee->srcpads = NULL;
}
static GstPad*
gst_tee_request_new_pad (GstElement *element, GstPadTemplate *templ)
{
gchar *name;
GstPad *srcpad;
GstTee *tee;
g_return_val_if_fail (GST_IS_TEE (element), NULL);
if (templ->direction != GST_PAD_SRC) {
g_warning ("gsttee: request new pad that is not a SRC pad\n");
return NULL;
}
tee = GST_TEE (element);
name = g_strdup_printf ("src%d",tee->numsrcpads);
srcpad = gst_pad_new_from_template (templ, name);
gst_element_add_pad (GST_ELEMENT (tee), srcpad);
tee->srcpads = g_slist_prepend (tee->srcpads, srcpad);
tee->numsrcpads++;
return srcpad;
}
static void
gst_tee_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
GstTee *tee;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_TEE (object));
tee = GST_TEE (object);
switch (prop_id) {
// case ARG_NUM_PADS:
// g_value_set_int (value, tee->numsrcpads);
// break;
default:
break;
}
}
static void
gst_tee_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
GstTee *tee;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_TEE (object));
tee = GST_TEE (object);
switch (prop_id) {
case ARG_NUM_PADS:
g_value_set_int (value, tee->numsrcpads);
break;
default:
break;
}
}
/**
* gst_tee_chain:
* @pad: the pad to follow
* @buf: the buffer to pass
*
* Chain a buffer on a pad.
*/
static void
gst_tee_chain (GstPad *pad, GstBuffer *buf)
{
GstTee *tee;
GSList *srcpads;
int i;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
tee = GST_TEE (gst_pad_get_parent (pad));
gst_trace_add_entry (NULL, 0, buf, "tee buffer");
for (i=0; i<tee->numsrcpads-1; i++)
gst_buffer_ref (buf);
srcpads = tee->srcpads;
while (srcpads) {
gst_pad_push (GST_PAD (srcpads->data), buf);
srcpads = g_slist_next (srcpads);
}
}
gboolean
gst_tee_factory_init (GstElementFactory *factory)
{
gst_tee_src_template = tee_src_factory_create ();
gst_elementfactory_add_padtemplate (factory, gst_tee_src_template);
return TRUE;
}
|
