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
|
public class Dino.Plugins.Rtp.VideoWidget : Gtk.Bin, Dino.Plugins.VideoCallWidget {
private static uint last_id = 0;
public uint id { get; private set; }
public Gst.Element element { get; private set; }
public Gtk.Widget widget { get; private set; }
public Plugin plugin { get; private set; }
public Gst.Pipeline pipe { get {
return plugin.pipe;
}}
private bool attached;
private Device? connected_device;
private Stream? connected_stream;
private Gst.Element convert;
public VideoWidget(Plugin plugin) {
this.plugin = plugin;
id = last_id++;
element = Gst.ElementFactory.make("gtksink", @"video_widget_$id");
if (element != null) {
Gtk.Widget widget;
element.@get("widget", out widget);
element.@set("async", false);
element.@set("sync", false);
this.widget = widget;
add(widget);
widget.visible = true;
// Listen for resolution changes
element.get_static_pad("sink").notify["caps"].connect(() => {
if (element.get_static_pad("sink").caps == null) return;
int width, height;
element.get_static_pad("sink").caps.get_structure(0).get_int("width", out width);
element.get_static_pad("sink").caps.get_structure(0).get_int("height", out height);
resolution_changed(width, height);
});
} else {
warning("Could not create GTK video sink. Won't display videos.");
}
}
public void display_stream(Xmpp.Xep.JingleRtp.Stream stream) {
if (element == null) return;
detach();
if (stream.media != "video") return;
connected_stream = stream as Stream;
if (connected_stream == null) return;
plugin.pause();
pipe.add(element);
convert = Gst.parse_bin_from_description(@"videoconvert name=video_widget_$(id)_convert", true);
convert.name = @"video_widget_$(id)_prepare";
pipe.add(convert);
convert.link(element);
connected_stream.add_output(convert);
element.set_locked_state(false);
plugin.unpause();
attached = true;
}
public void display_device(MediaDevice media_device) {
if (element == null) return;
detach();
connected_device = media_device as Device;
if (connected_device == null) return;
plugin.pause();
pipe.add(element);
convert = Gst.parse_bin_from_description(@"videoflip method=horizontal-flip name=video_widget_$(id)_flip ! videoconvert name=video_widget_$(id)_convert", true);
convert.name = @"video_widget_$(id)_prepare";
pipe.add(convert);
convert.link(element);
connected_device.link_source().link(convert);
element.set_locked_state(false);
plugin.unpause();
attached = true;
}
public void detach() {
if (element == null) return;
if (attached) {
if (connected_stream != null) {
connected_stream.remove_output(convert);
connected_stream = null;
}
if (connected_device != null) {
connected_device.link_source().unlink(element);
connected_device.unlink(); // We get a new ref to recover the element, so unlink twice
connected_device.unlink();
connected_device = null;
}
convert.set_locked_state(true);
convert.set_state(Gst.State.NULL);
pipe.remove(convert);
convert = null;
element.set_locked_state(true);
element.set_state(Gst.State.NULL);
pipe.remove(element);
attached = false;
}
}
public override void dispose() {
detach();
widget = null;
element = null;
}
}
|
