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
|
/*
* Clutter-GStreamer.
*
* GStreamer integration library for Clutter.
*
* video-sink.c - A small example around the videotestsrc ! warptv !
* videoconvert ! cluttersink pipeline.
*
* Copyright (C) 2007,2008 OpenedHand
*
* 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 <stdlib.h>
#include <clutter-gst/clutter-gst.h>
void
size_change (ClutterGstPlayer *player,
gint width,
gint height,
ClutterActor *actor)
{
ClutterActor *stage;
gfloat new_x, new_y, new_width, new_height;
gfloat stage_width, stage_height;
stage = clutter_actor_get_stage (actor);
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_width - new_width) / 2;
new_y = 0;
}
clutter_actor_set_position (actor, new_x, new_y);
clutter_actor_set_size (actor, new_width, new_height);
}
int
main (int argc, char *argv[])
{
ClutterTimeline *timeline;
ClutterActor *stage;
ClutterActor *actor;
GstElement *src;
GstElement *warp;
GstElement *bin;
GstElement *pipeline;
ClutterGstPlayback *player;
if (argc < 1)
{
g_error ("Usage: %s", argv[0]);
return EXIT_FAILURE;
}
if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
{
g_error ("Failed to initialize clutter\n");
return EXIT_FAILURE;
}
gst_init (&argc, &argv);
stage = clutter_stage_new ();
/* Make a timeline */
timeline = clutter_timeline_new (1000);
g_object_set(timeline, "loop", TRUE, NULL);
actor = g_object_new (CLUTTER_GST_TYPE_ACTOR, NULL);
/* Set up pipeline */
player = clutter_gst_playback_new ();
pipeline = clutter_gst_player_get_pipeline (CLUTTER_GST_PLAYER (player));
g_signal_connect (player, "size-change",
G_CALLBACK (size_change), actor);
src = gst_element_factory_make ("videotestsrc", NULL);
warp = gst_element_factory_make ("warptv", NULL);
bin = gst_bin_new ("video-test-source");
gst_bin_add_many (GST_BIN (bin), src, warp, NULL);
gst_element_link_many (src, warp, NULL);
g_object_set (pipeline, "source", bin);
clutter_gst_player_set_playing (CLUTTER_GST_PLAYER (player), TRUE);
/* start the timeline */
clutter_timeline_start (timeline);
clutter_actor_add_child (stage, actor);
// clutter_actor_set_opacity (texture, 0x11);
clutter_actor_show (stage);
clutter_main();
return EXIT_SUCCESS;
}
|