1 /* GStreamer
2 *
3 * Copyright (C) 2019 Collabora Ltd.
4 * Author: Stéphane Cerveau <scerveau@collabora.com>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 *
20 */
21 #include "gstmpdutctimingnode.h"
22 #include "gstmpdparser.h"
23
24 G_DEFINE_TYPE (GstMPDUTCTimingNode, gst_mpd_utctiming_node, GST_TYPE_MPD_NODE);
25
26 static const struct GstMPDUTCTimingMethod gst_mpd_utctiming_methods[] = {
27 {"urn:mpeg:dash:utc:ntp:2014", GST_MPD_UTCTIMING_TYPE_NTP},
28 {"urn:mpeg:dash:utc:sntp:2014", GST_MPD_UTCTIMING_TYPE_SNTP},
29 {"urn:mpeg:dash:utc:http-head:2014", GST_MPD_UTCTIMING_TYPE_HTTP_HEAD},
30 {"urn:mpeg:dash:utc:http-xsdate:2014", GST_MPD_UTCTIMING_TYPE_HTTP_XSDATE},
31 {"urn:mpeg:dash:utc:http-iso:2014", GST_MPD_UTCTIMING_TYPE_HTTP_ISO},
32 {"urn:mpeg:dash:utc:http-ntp:2014", GST_MPD_UTCTIMING_TYPE_HTTP_NTP},
33 {"urn:mpeg:dash:utc:direct:2014", GST_MPD_UTCTIMING_TYPE_DIRECT},
34 /*
35 * Early working drafts used the :2012 namespace and this namespace is
36 * used by some DASH packagers. To work-around these packagers, we also
37 * accept the early draft scheme names.
38 */
39 {"urn:mpeg:dash:utc:ntp:2012", GST_MPD_UTCTIMING_TYPE_NTP},
40 {"urn:mpeg:dash:utc:sntp:2012", GST_MPD_UTCTIMING_TYPE_SNTP},
41 {"urn:mpeg:dash:utc:http-head:2012", GST_MPD_UTCTIMING_TYPE_HTTP_HEAD},
42 {"urn:mpeg:dash:utc:http-xsdate:2012", GST_MPD_UTCTIMING_TYPE_HTTP_XSDATE},
43 {"urn:mpeg:dash:utc:http-iso:2012", GST_MPD_UTCTIMING_TYPE_HTTP_ISO},
44 {"urn:mpeg:dash:utc:http-ntp:2012", GST_MPD_UTCTIMING_TYPE_HTTP_NTP},
45 {"urn:mpeg:dash:utc:direct:2012", GST_MPD_UTCTIMING_TYPE_DIRECT},
46 {NULL, 0}
47 };
48
49 /* GObject VMethods */
50
51 static void
gst_mpd_utctiming_node_finalize(GObject * object)52 gst_mpd_utctiming_node_finalize (GObject * object)
53 {
54 GstMPDUTCTimingNode *self = GST_MPD_UTCTIMING_NODE (object);
55
56 g_strfreev (self->urls);
57
58 G_OBJECT_CLASS (gst_mpd_utctiming_node_parent_class)->finalize (object);
59 }
60
61 /* Base class */
62
63 static xmlNodePtr
gst_mpd_utc_timing_get_xml_node(GstMPDNode * node)64 gst_mpd_utc_timing_get_xml_node (GstMPDNode * node)
65 {
66 xmlNodePtr utc_timing_xml_node = NULL;
67 gchar *value = NULL;
68 GstMPDUTCTimingNode *self = GST_MPD_UTCTIMING_NODE (node);
69
70 utc_timing_xml_node = xmlNewNode (NULL, (xmlChar *) "UTCTiming");
71
72 if (self->method) {
73 gst_xml_helper_set_prop_string (utc_timing_xml_node, "schemeiduri",
74 (gchar *) gst_mpd_utctiming_get_scheme_id_uri (self->method));
75 }
76 if (self->urls) {
77 value = g_strjoinv (" ", self->urls);
78 gst_xml_helper_set_prop_string (utc_timing_xml_node, "value", value);
79 g_free (value);
80 }
81
82 return utc_timing_xml_node;
83 }
84
85 static void
gst_mpd_utctiming_node_class_init(GstMPDUTCTimingNodeClass * klass)86 gst_mpd_utctiming_node_class_init (GstMPDUTCTimingNodeClass * klass)
87 {
88 GObjectClass *object_class;
89 GstMPDNodeClass *m_klass;
90
91 object_class = G_OBJECT_CLASS (klass);
92 m_klass = GST_MPD_NODE_CLASS (klass);
93
94 object_class->finalize = gst_mpd_utctiming_node_finalize;
95
96 m_klass->get_xml_node = gst_mpd_utc_timing_get_xml_node;
97 }
98
99 static void
gst_mpd_utctiming_node_init(GstMPDUTCTimingNode * self)100 gst_mpd_utctiming_node_init (GstMPDUTCTimingNode * self)
101 {
102 self->method = 0;
103 self->urls = NULL;
104 }
105
106 GstMPDUTCTimingNode *
gst_mpd_utctiming_node_new(void)107 gst_mpd_utctiming_node_new (void)
108 {
109 return g_object_new (GST_TYPE_MPD_UTCTIMING_NODE, NULL);
110 }
111
112 void
gst_mpd_utctiming_node_free(GstMPDUTCTimingNode * self)113 gst_mpd_utctiming_node_free (GstMPDUTCTimingNode * self)
114 {
115 if (self)
116 gst_object_unref (self);
117 }
118
119 const gchar *
gst_mpd_utctiming_get_scheme_id_uri(GstMPDUTCTimingType type)120 gst_mpd_utctiming_get_scheme_id_uri (GstMPDUTCTimingType type)
121 {
122 int i;
123 for (i = 0; gst_mpd_utctiming_methods[i].name; ++i) {
124 if (type == gst_mpd_utctiming_methods[i].method)
125 return gst_mpd_utctiming_methods[i].name;
126 }
127 return NULL;
128 }
129
130 GstMPDUTCTimingType
gst_mpd_utctiming_get_method(gchar * schemeIDURI)131 gst_mpd_utctiming_get_method (gchar * schemeIDURI)
132 {
133 int i;
134 for (i = 0; gst_mpd_utctiming_methods[i].name; ++i) {
135 if (g_ascii_strncasecmp (gst_mpd_utctiming_methods[i].name,
136 schemeIDURI, strlen (gst_mpd_utctiming_methods[i].name)) == 0)
137 return gst_mpd_utctiming_methods[i].method;
138 }
139 return GST_MPD_UTCTIMING_TYPE_UNKNOWN;
140 }
141