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
|
/*
* Clutter-GStreamer.
*
* GStreamer integration library for Clutter.
*
* test-rgb-upload.c - Feed RGB frames to a cluttersink.
*
* Authored by Damien Lespiau <damien.lespiau@intel.com>
*
* Copyright (C) 2009 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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 <string.h>
#include <glib/gprintf.h>
#include <clutter-gst/clutter-gst.h>
static gint opt_framerate = 30;
static gint opt_bpp = 24;
static gint opt_depth = 24;
static GOptionEntry options[] =
{
{ "framerate",
'f', 0,
G_OPTION_ARG_INT,
&opt_framerate,
"Number of frames per second (default is 25)",
NULL
},
{ "bpp",
'b', 0,
G_OPTION_ARG_INT,
&opt_bpp,
"bits per pixel (default is 32)",
NULL
},
{ "depth",
'd', 0,
G_OPTION_ARG_INT,
&opt_depth,
"depth (default is 24)",
NULL
},
{ NULL }
};
void
size_change (ClutterTexture *texture,
gint width,
gint height,
gpointer user_data)
{
ClutterActor *stage;
gfloat new_x, new_y, new_width, new_height;
gfloat stage_width, stage_height;
stage = clutter_actor_get_stage (CLUTTER_ACTOR (texture));
if (stage == NULL)
return;
clutter_actor_get_size (stage, &stage_width, &stage_height);
new_height = (height * stage_width) / width;
if (new_height <= stage_height)
{
new_width = stage_width;
new_x = 0;
new_y = (stage_height - new_height) / 2;
}
else
{
new_width = (width * stage_height) / height;
new_height = stage_height;
new_x = (stage_height - new_width) / 2;
new_y = 0;
}
clutter_actor_set_position (CLUTTER_ACTOR (texture), new_x, new_y);
clutter_actor_set_size (CLUTTER_ACTOR (texture), new_width, new_height);
}
int
main (int argc, char *argv[])
{
GError *error = NULL;
gboolean result;
ClutterActor *stage;
ClutterActor *texture;
GstPipeline *pipeline;
GstElement *src;
GstElement *capsfilter;
GstElement *sink;
GstCaps *caps;
if (!g_thread_supported ())
g_thread_init (NULL);
result = clutter_gst_init_with_args (&argc,
&argv,
" - Test RGB frames uploading",
options,
NULL,
&error);
if (error)
{
g_print ("%s\n", error->message);
g_error_free (error);
return EXIT_FAILURE;
}
stage = clutter_stage_get_default ();
clutter_actor_set_size (CLUTTER_ACTOR (stage), 320.0f, 240.0f);
/* We need to set certain props on the target texture currently for
* efficient/corrent playback onto the texture (which sucks a bit)
*/
texture = g_object_new (CLUTTER_TYPE_TEXTURE,
"sync-size", FALSE,
"disable-slicing", TRUE,
NULL);
g_signal_connect (CLUTTER_TEXTURE (texture),
"size-change",
G_CALLBACK (size_change), NULL);
/* Set up pipeline */
pipeline = GST_PIPELINE(gst_pipeline_new (NULL));
src = gst_element_factory_make ("videotestsrc", NULL);
capsfilter = gst_element_factory_make ("capsfilter", NULL);
sink = clutter_gst_video_sink_new (CLUTTER_TEXTURE (texture));
/* make videotestsrc spit the format we want */
caps = gst_caps_new_simple ("video/x-raw-rgb",
"bpp", G_TYPE_INT, opt_bpp,
"depth", G_TYPE_INT, opt_depth,
"framerate", GST_TYPE_FRACTION, opt_framerate, 1,
#if 0
"red_mask", G_TYPE_INT, 0xff000000,
"green_mask", G_TYPE_INT, 0x00ff0000,
"blue_mask", G_TYPE_INT, 0x0000ff00,
#endif
NULL);
g_object_set (capsfilter, "caps", caps, NULL);
g_printf ("%s: [caps] %s\n", __FILE__, gst_caps_to_string (caps));
gst_bin_add_many (GST_BIN (pipeline), src, capsfilter, sink, NULL);
result = gst_element_link_many (src, capsfilter, sink, NULL);
if (result == FALSE)
g_critical("Could not link elements");
gst_element_set_state (GST_ELEMENT(pipeline), GST_STATE_PLAYING);
clutter_group_add (CLUTTER_GROUP (stage), texture);
clutter_actor_show_all (stage);
clutter_main();
return EXIT_SUCCESS;
}
|
