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
|
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* Filter:
* Copyright (C) 2000 Donald A. Graft
*
* 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 <string.h>
#include <gst/gst.h>
#include <gst/video/video.h>
#include "gstpngenc.h"
extern GstElementDetails gst_pngenc_details;
static GstCaps*
png_caps_factory (void)
{
return gst_caps_new ( "png_png",
"video/x-png",
gst_props_new (
"width", GST_PROPS_INT_RANGE (16, 4096),
"height", GST_PROPS_INT_RANGE (16, 4096),
"framerate", GST_PROPS_FLOAT_RANGE (0, G_MAXFLOAT),
NULL));
}
static GstCaps*
raw_caps_factory (void)
{
return gst_caps_new ( "png_raw",
"video/x-raw-rgb",
GST_VIDEO_RGB_PAD_TEMPLATE_PROPS_24
);
}
static gboolean
plugin_init (GModule * module, GstPlugin * plugin)
{
GstElementFactory *png_enc;
GstCaps *raw_caps, *png_caps;
/* create an elementfactory for the jpegdec element */
png_enc = gst_element_factory_new("pngenc", GST_TYPE_PNGENC, &gst_pngenc_details);
g_return_val_if_fail(png_enc != NULL, FALSE);
raw_caps = raw_caps_factory ();
png_caps = png_caps_factory ();
/* register sink pads */
pngenc_sink_template = gst_pad_template_new ("sink", GST_PAD_SINK,
GST_PAD_ALWAYS,
raw_caps, NULL);
gst_element_factory_add_pad_template (png_enc, pngenc_sink_template);
/* register src pads */
pngenc_src_template = gst_pad_template_new ("src", GST_PAD_SRC,
GST_PAD_ALWAYS,
png_caps, NULL);
gst_element_factory_add_pad_template (png_enc, pngenc_src_template);
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (png_enc));
return TRUE;
}
GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"png",
plugin_init
};
|
