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
|
/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstfakesink.c:
*
* 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 <gstfakesink.h>
GstElementDetails gst_fakesink_details = {
"Fake Sink",
"Sink",
"Black hole for data",
VERSION,
"Erik Walthinsen <omega@cse.ogi.edu>",
"(C) 1999",
};
/* FakeSink signals and args */
enum {
/* FILL ME */
SIGNAL_HANDOFF,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_NUM_SOURCES,
ARG_SILENT,
};
static void gst_fakesink_class_init (GstFakeSinkClass *klass);
static void gst_fakesink_init (GstFakeSink *fakesink);
static void gst_fakesink_set_arg (GtkObject *object, GtkArg *arg, guint id);
static void gst_fakesink_get_arg (GtkObject *object, GtkArg *arg, guint id);
static void gst_fakesink_chain (GstPad *pad,GstBuffer *buf);
static GstElementClass *parent_class = NULL;
static guint gst_fakesink_signals[LAST_SIGNAL] = { 0 };
GtkType
gst_fakesink_get_type (void)
{
static GtkType fakesink_type = 0;
if (!fakesink_type) {
static const GtkTypeInfo fakesink_info = {
"GstFakeSink",
sizeof(GstFakeSink),
sizeof(GstFakeSinkClass),
(GtkClassInitFunc)gst_fakesink_class_init,
(GtkObjectInitFunc)gst_fakesink_init,
(GtkArgSetFunc)NULL,
(GtkArgGetFunc)NULL,
(GtkClassInitFunc)NULL,
};
fakesink_type = gtk_type_unique (GST_TYPE_ELEMENT, &fakesink_info);
}
return fakesink_type;
}
static void
gst_fakesink_class_init (GstFakeSinkClass *klass)
{
GtkObjectClass *gtkobject_class;
gtkobject_class = (GtkObjectClass*)klass;
parent_class = gtk_type_class (GST_TYPE_ELEMENT);
gtk_object_add_arg_type ("GstFakeSink::num_sources", GTK_TYPE_INT,
GTK_ARG_READWRITE, ARG_NUM_SOURCES);
gtk_object_add_arg_type ("GstFakeSink::silent", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_SILENT);
gst_fakesink_signals[SIGNAL_HANDOFF] =
gtk_signal_new ("handoff", GTK_RUN_LAST, gtkobject_class->type,
GTK_SIGNAL_OFFSET (GstFakeSinkClass, handoff),
gtk_marshal_NONE__NONE, GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (gtkobject_class, gst_fakesink_signals,
LAST_SIGNAL);
gtkobject_class->set_arg = gst_fakesink_set_arg;
gtkobject_class->get_arg = gst_fakesink_get_arg;
}
static void
gst_fakesink_init (GstFakeSink *fakesink)
{
GstPad *pad;
pad = gst_pad_new ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (fakesink), pad);
gst_pad_set_chain_function (pad, gst_fakesink_chain);
fakesink->sinkpads = g_slist_prepend (NULL, pad);
fakesink->numsinkpads = 1;
fakesink->silent = FALSE;
// we're ready right away, since we don't have any args...
// gst_element_set_state(GST_ELEMENT(fakesink),GST_STATE_READY);
}
static void
gst_fakesink_set_arg (GtkObject *object, GtkArg *arg, guint id)
{
GstFakeSink *sink;
gint new_numsinks;
GstPad *pad;
/* it's not null if we got it, but it might not be ours */
sink = GST_FAKESINK (object);
switch(id) {
case ARG_NUM_SOURCES:
new_numsinks = GTK_VALUE_INT (*arg);
while (sink->numsinkpads < new_numsinks) {
pad = gst_pad_new (g_strdup_printf ("sink%d", sink->numsinkpads), GST_PAD_SINK);
gst_pad_set_chain_function (pad, gst_fakesink_chain);
gst_element_add_pad (GST_ELEMENT (sink), pad);
sink->sinkpads = g_slist_append (sink->sinkpads, pad);
sink->numsinkpads++;
}
break;
case ARG_SILENT:
sink->silent = GTK_VALUE_BOOL (*arg);
break;
default:
break;
}
}
static void
gst_fakesink_get_arg (GtkObject *object, GtkArg *arg, guint id)
{
GstFakeSink *sink;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_FAKESINK (object));
sink = GST_FAKESINK (object);
switch (id) {
case ARG_NUM_SOURCES:
GTK_VALUE_INT (*arg) = sink->numsinkpads;
break;
case ARG_SILENT:
GTK_VALUE_BOOL (*arg) = sink->silent;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
/**
* gst_fakesink_chain:
* @pad: the pad this faksink is connected to
* @buf: the buffer that has to be absorbed
*
* take the buffer from the pad and unref it without doing
* anything with it.
*/
static void
gst_fakesink_chain (GstPad *pad, GstBuffer *buf)
{
GstFakeSink *fakesink;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
fakesink = GST_FAKESINK (gst_pad_get_parent (pad));
if (!fakesink->silent)
g_print("fakesink: ******* (%s:%s)< (%d bytes) \n",GST_DEBUG_PAD_NAME(pad),GST_BUFFER_SIZE(buf));
gst_buffer_unref (buf);
gtk_signal_emit (GTK_OBJECT (fakesink), gst_fakesink_signals[SIGNAL_HANDOFF],
fakesink);
}
|
