gstreamer/subprojects/gst-plugins-good/ext/adaptivedemux2/dash/gstmpdutctimingnode.c
Edward Hervey af78c16dd5 New HLS, DASH and MSS adaptive demuxer elements
This provides new HLS, DASH and MSS adaptive demuxer elements as a single plugin.

These elements offer many improvements over the legacy elements. They will only
work within a streams-aware context (`urisourcebin`, `uridecodebin3`,
`decodebin3`, `playbin3`, ...).

Stream selection and buffering is handled internally, this allows them to
directly manage the elementary streams and stream selection.

Authors:
* Edward Hervey <edward@centricular.com>
* Jan Schmidt <jan@centricular.com>
* Piotrek Brzeziński <piotr@centricular.com>
* Tim-Philipp Müller <tim@centricular.com>

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2117>
2022-04-18 14:11:23 +00:00

140 lines
4.4 KiB
C

/* GStreamer
*
* Copyright (C) 2019 Collabora Ltd.
* Author: Stéphane Cerveau <scerveau@collabora.com>
*
* 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 2.1 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "gstmpdutctimingnode.h"
#include "gstmpdparser.h"
G_DEFINE_TYPE (GstMPDUTCTimingNode2, gst_mpd_utctiming_node, GST_TYPE_MPD_NODE);
static const struct GstMPDUTCTimingMethod gst_mpd_utctiming_methods[] = {
{"urn:mpeg:dash:utc:ntp:2014", GST_MPD_UTCTIMING_TYPE_NTP},
{"urn:mpeg:dash:utc:sntp:2014", GST_MPD_UTCTIMING_TYPE_SNTP},
{"urn:mpeg:dash:utc:http-head:2014", GST_MPD_UTCTIMING_TYPE_HTTP_HEAD},
{"urn:mpeg:dash:utc:http-xsdate:2014", GST_MPD_UTCTIMING_TYPE_HTTP_XSDATE},
{"urn:mpeg:dash:utc:http-iso:2014", GST_MPD_UTCTIMING_TYPE_HTTP_ISO},
{"urn:mpeg:dash:utc:http-ntp:2014", GST_MPD_UTCTIMING_TYPE_HTTP_NTP},
{"urn:mpeg:dash:utc:direct:2014", GST_MPD_UTCTIMING_TYPE_DIRECT},
/*
* Early working drafts used the :2012 namespace and this namespace is
* used by some DASH packagers. To work-around these packagers, we also
* accept the early draft scheme names.
*/
{"urn:mpeg:dash:utc:ntp:2012", GST_MPD_UTCTIMING_TYPE_NTP},
{"urn:mpeg:dash:utc:sntp:2012", GST_MPD_UTCTIMING_TYPE_SNTP},
{"urn:mpeg:dash:utc:http-head:2012", GST_MPD_UTCTIMING_TYPE_HTTP_HEAD},
{"urn:mpeg:dash:utc:http-xsdate:2012", GST_MPD_UTCTIMING_TYPE_HTTP_XSDATE},
{"urn:mpeg:dash:utc:http-iso:2012", GST_MPD_UTCTIMING_TYPE_HTTP_ISO},
{"urn:mpeg:dash:utc:http-ntp:2012", GST_MPD_UTCTIMING_TYPE_HTTP_NTP},
{"urn:mpeg:dash:utc:direct:2012", GST_MPD_UTCTIMING_TYPE_DIRECT},
{NULL, 0}
};
/* GObject VMethods */
static void
gst_mpd_utctiming_node_finalize (GObject * object)
{
GstMPDUTCTimingNode *self = GST_MPD_UTCTIMING_NODE (object);
g_strfreev (self->urls);
G_OBJECT_CLASS (gst_mpd_utctiming_node_parent_class)->finalize (object);
}
/* Base class */
static xmlNodePtr
gst_mpd_utc_timing_get_xml_node (GstMPDNode * node)
{
xmlNodePtr utc_timing_xml_node = NULL;
gchar *value = NULL;
GstMPDUTCTimingNode *self = GST_MPD_UTCTIMING_NODE (node);
utc_timing_xml_node = xmlNewNode (NULL, (xmlChar *) "UTCTiming");
if (self->method) {
gst_xml_helper_set_prop_string (utc_timing_xml_node, "schemeiduri",
(gchar *) gst_mpd_utctiming_get_scheme_id_uri (self->method));
}
if (self->urls) {
value = g_strjoinv (" ", self->urls);
gst_xml_helper_set_prop_string (utc_timing_xml_node, "value", value);
g_free (value);
}
return utc_timing_xml_node;
}
static void
gst_mpd_utctiming_node_class_init (GstMPDUTCTimingNodeClass * klass)
{
GObjectClass *object_class;
GstMPDNodeClass *m_klass;
object_class = G_OBJECT_CLASS (klass);
m_klass = GST_MPD_NODE_CLASS (klass);
object_class->finalize = gst_mpd_utctiming_node_finalize;
m_klass->get_xml_node = gst_mpd_utc_timing_get_xml_node;
}
static void
gst_mpd_utctiming_node_init (GstMPDUTCTimingNode * self)
{
self->method = 0;
self->urls = NULL;
}
GstMPDUTCTimingNode *
gst_mpd_utctiming_node_new (void)
{
return g_object_new (GST_TYPE_MPD_UTCTIMING_NODE, NULL);
}
void
gst_mpd_utctiming_node_free (GstMPDUTCTimingNode * self)
{
if (self)
gst_object_unref (self);
}
const gchar *
gst_mpd_utctiming_get_scheme_id_uri (GstMPDUTCTimingType type)
{
int i;
for (i = 0; gst_mpd_utctiming_methods[i].name; ++i) {
if (type == gst_mpd_utctiming_methods[i].method)
return gst_mpd_utctiming_methods[i].name;
}
return NULL;
}
GstMPDUTCTimingType
gst_mpd_utctiming_get_method (gchar * schemeIDURI)
{
int i;
for (i = 0; gst_mpd_utctiming_methods[i].name; ++i) {
if (g_ascii_strncasecmp (gst_mpd_utctiming_methods[i].name,
schemeIDURI, strlen (gst_mpd_utctiming_methods[i].name)) == 0)
return gst_mpd_utctiming_methods[i].method;
}
return GST_MPD_UTCTIMING_TYPE_UNKNOWN;
}