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
|
/* Copyright (C) <2018> Philippe Normand <philn@igalia.com>
* Copyright (C) <2018> Žan Doberšek <zdobersek@igalia.com>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:element-wpesrc
* @title: wpesrc
*
* FIXME The wpesrc element is used to produce a video texture representing a
* web page rendered off-screen by WPE.
*
*/
#include "gstwpesrcbin.h"
#include "gstwpevideosrc.h"
#include "WPEThreadedView.h"
struct _GstWpeSrc
{
GstBin parent;
GstElement *video_src;
};
enum
{
PROP_0,
PROP_LOCATION,
PROP_DRAW_BACKGROUND
};
enum
{
SIGNAL_LOAD_BYTES,
LAST_SIGNAL
};
static guint gst_wpe_video_src_signals[LAST_SIGNAL] = { 0 };
static void gst_wpe_src_uri_handler_init (gpointer iface, gpointer data);
#define gst_wpe_src_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstWpeSrc, gst_wpe_src, GST_TYPE_BIN,
G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER, gst_wpe_src_uri_handler_init));
static GstStaticPadTemplate video_src_factory =
GST_STATIC_PAD_TEMPLATE ("video_src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw(memory:GLMemory), "
"format = (string) RGBA, "
"width = " GST_VIDEO_SIZE_RANGE ", "
"height = " GST_VIDEO_SIZE_RANGE ", "
"framerate = " GST_VIDEO_FPS_RANGE ", "
"pixel-aspect-ratio = (fraction)1/1,"
"texture-target = (string)2D"
#if ENABLE_SHM_BUFFER_SUPPORT
"; video/x-raw, "
"format = (string) BGRA, "
"width = " GST_VIDEO_SIZE_RANGE ", "
"height = " GST_VIDEO_SIZE_RANGE ", "
"framerate = " GST_VIDEO_FPS_RANGE ", "
"pixel-aspect-ratio = (fraction)1/1"
#endif
));
static void
gst_wpe_src_load_bytes (GstWpeVideoSrc * src, GBytes * bytes)
{
GstWpeSrc *self = GST_WPE_SRC (src);
if (self->video_src)
g_signal_emit_by_name (self->video_src, "load-bytes", bytes, NULL);
}
static void
gst_wpe_src_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstWpeSrc *self = GST_WPE_SRC (object);
if (self->video_src)
g_object_get_property (G_OBJECT (self->video_src), pspec->name, value);
}
static void
gst_wpe_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstWpeSrc *self = GST_WPE_SRC (object);
if (self->video_src)
g_object_set_property (G_OBJECT (self->video_src), pspec->name, value);
}
static GstURIType
gst_wpe_src_uri_get_type (GType)
{
return GST_URI_SRC;
}
static const gchar *const *
gst_wpe_src_get_protocols (GType)
{
static const char *protocols[] = { "wpe", NULL };
return protocols;
}
static gchar *
gst_wpe_src_get_uri (GstURIHandler * handler)
{
GstWpeSrc *src = GST_WPE_SRC (handler);
const gchar *location;
g_object_get (src->video_src, "location", &location, NULL);
return g_strdup_printf ("wpe://%s", location);
}
static gboolean
gst_wpe_src_set_uri (GstURIHandler * handler, const gchar * uri,
GError ** error)
{
GstWpeSrc *src = GST_WPE_SRC (handler);
g_object_set (src->video_src, "location", uri + 6, NULL);
return TRUE;
}
static void
gst_wpe_src_uri_handler_init (gpointer iface_ptr, gpointer data)
{
GstURIHandlerInterface *iface = (GstURIHandlerInterface *) iface_ptr;
iface->get_type = gst_wpe_src_uri_get_type;
iface->get_protocols = gst_wpe_src_get_protocols;
iface->get_uri = gst_wpe_src_get_uri;
iface->set_uri = gst_wpe_src_set_uri;
}
static void
gst_wpe_src_init (GstWpeSrc * src)
{
src->video_src = gst_element_factory_make ("wpevideosrc", NULL);
gst_bin_add (GST_BIN_CAST (src), src->video_src);
GstPad *pad =
gst_element_get_static_pad (GST_ELEMENT_CAST (src->video_src), "src");
GstPad *ghost_pad = gst_ghost_pad_new_from_template ("video_src", pad,
gst_static_pad_template_get (&video_src_factory));
GstProxyPad *proxy_pad =
gst_proxy_pad_get_internal (GST_PROXY_PAD (ghost_pad));
gst_pad_set_active (GST_PAD_CAST (proxy_pad), TRUE);
gst_object_unref (proxy_pad);
gst_element_add_pad (GST_ELEMENT_CAST (src), GST_PAD_CAST (ghost_pad));
gst_object_unref (pad);
}
static void
gst_wpe_src_class_init (GstWpeSrcClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->set_property = gst_wpe_src_set_property;
gobject_class->get_property = gst_wpe_src_get_property;
g_object_class_install_property (gobject_class, PROP_LOCATION,
g_param_spec_string ("location", "location", "The URL to display", "",
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_DRAW_BACKGROUND,
g_param_spec_boolean ("draw-background", "Draws the background",
"Whether to draw the WebView background", TRUE,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
gst_element_class_set_static_metadata (element_class, "WPE source",
"Source/Video", "Creates a video stream from a WPE browser",
"Philippe Normand <philn@igalia.com>, Žan Doberšek "
"<zdobersek@igalia.com>");
/**
* GstWpeSrc::load-bytes:
* @src: the object which received the signal
* @bytes: the GBytes data to load
*
* Load the specified bytes into the internal webView.
*/
gst_wpe_video_src_signals[SIGNAL_LOAD_BYTES] =
g_signal_new_class_handler ("load-bytes", G_TYPE_FROM_CLASS (klass),
static_cast < GSignalFlags > (G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION),
G_CALLBACK (gst_wpe_src_load_bytes), NULL, NULL, NULL, G_TYPE_NONE, 1,
G_TYPE_BYTES);
gst_element_class_set_static_metadata (element_class, "WPE source",
"Source/Video", "Creates a video stream from a WPE browser",
"Philippe Normand <philn@igalia.com>, Žan Doberšek "
"<zdobersek@igalia.com>");
gst_element_class_add_static_pad_template (element_class, &video_src_factory);
}
|
