gstreamer/subprojects/gst-plugins-good/ext/adaptivedemux2/dash/gstmpdadaptationsetnode.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

273 lines
9.3 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 "gstmpdadaptationsetnode.h"
#include "gstmpdparser.h"
G_DEFINE_TYPE (GstMPDAdaptationSetNode2, gst_mpd_adaptation_set_node,
GST_TYPE_MPD_REPRESENTATION_BASE_NODE);
enum
{
PROP_MPD_ADAPTATION_SET_0,
PROP_MPD_ADAPTATION_SET_ID,
PROP_MPD_ADAPTATION_SET_CONTENT_TYPE,
};
/* GObject VMethods */
static void
gst_mpd_adaptation_set_node_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstMPDAdaptationSetNode *self = GST_MPD_ADAPTATION_SET_NODE (object);
switch (prop_id) {
case PROP_MPD_ADAPTATION_SET_ID:
self->id = g_value_get_int (value);
break;
case PROP_MPD_ADAPTATION_SET_CONTENT_TYPE:
g_free (self->contentType);
self->contentType = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_mpd_adaptation_set_node_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstMPDAdaptationSetNode *self = GST_MPD_ADAPTATION_SET_NODE (object);
switch (prop_id) {
case PROP_MPD_ADAPTATION_SET_ID:
g_value_set_int (value, self->id);
break;
case PROP_MPD_ADAPTATION_SET_CONTENT_TYPE:
g_value_set_string (value, self->contentType);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_mpd_adaptation_set_node_finalize (GObject * object)
{
GstMPDAdaptationSetNode *self = GST_MPD_ADAPTATION_SET_NODE (object);
if (self->lang)
xmlFree (self->lang);
if (self->contentType)
xmlFree (self->contentType);
g_slice_free (GstXMLRatio, self->par);
g_slice_free (GstXMLConditionalUintType, self->segmentAlignment);
g_slice_free (GstXMLConditionalUintType, self->subsegmentAlignment);
g_list_free_full (self->Accessibility,
(GDestroyNotify) gst_mpd_descriptor_type_node_free);
g_list_free_full (self->Role,
(GDestroyNotify) gst_mpd_descriptor_type_node_free);
g_list_free_full (self->Rating,
(GDestroyNotify) gst_mpd_descriptor_type_node_free);
g_list_free_full (self->Viewpoint,
(GDestroyNotify) gst_mpd_descriptor_type_node_free);
gst_mpd_segment_base_node_free (self->SegmentBase);
gst_mpd_segment_list_node_free (self->SegmentList);
gst_mpd_segment_template_node_free (self->SegmentTemplate);
g_list_free_full (self->BaseURLs, (GDestroyNotify) gst_mpd_baseurl_node_free);
g_list_free_full (self->Representations,
(GDestroyNotify) gst_mpd_representation_node_free);
g_list_free_full (self->ContentComponents,
(GDestroyNotify) gst_mpd_content_component_node_free);
if (self->xlink_href)
xmlFree (self->xlink_href);
G_OBJECT_CLASS (gst_mpd_adaptation_set_node_parent_class)->finalize (object);
}
/* Base class */
static xmlNodePtr
gst_mpd_adaptation_set_get_xml_node (GstMPDNode * node)
{
xmlNodePtr adaptation_set_xml_node = NULL;
GstMPDAdaptationSetNode *self = GST_MPD_ADAPTATION_SET_NODE (node);
adaptation_set_xml_node = xmlNewNode (NULL, (xmlChar *) "AdaptationSet");
if (self->id)
gst_xml_helper_set_prop_uint (adaptation_set_xml_node, "id", self->id);
if (self->group)
gst_xml_helper_set_prop_uint (adaptation_set_xml_node, "group",
self->group);
if (self->lang)
gst_xml_helper_set_prop_string (adaptation_set_xml_node, "lang",
self->lang);
if (self->contentType)
gst_xml_helper_set_prop_string (adaptation_set_xml_node, "contentType",
self->contentType);
if (self->minBandwidth)
gst_xml_helper_set_prop_uint (adaptation_set_xml_node, "minBandwidth",
self->minBandwidth);
if (self->maxBandwidth)
gst_xml_helper_set_prop_uint (adaptation_set_xml_node, "maxBandwidth",
self->maxBandwidth);
if (self->minWidth)
gst_xml_helper_set_prop_uint (adaptation_set_xml_node, "minWidth",
self->minWidth);
if (self->maxWidth)
gst_xml_helper_set_prop_uint (adaptation_set_xml_node, "maxWidth",
self->maxWidth);
if (self->minHeight)
gst_xml_helper_set_prop_uint (adaptation_set_xml_node, "minHeight",
self->minHeight);
if (self->maxHeight)
gst_xml_helper_set_prop_uint (adaptation_set_xml_node, "maxHeight",
self->maxHeight);
if (self->par)
gst_xml_helper_set_prop_ratio (adaptation_set_xml_node, "par", self->par);
gst_xml_helper_set_prop_cond_uint (adaptation_set_xml_node,
"segmentAlignment", self->segmentAlignment);
gst_xml_helper_set_prop_cond_uint (adaptation_set_xml_node,
"subsegmentAlignment", self->subsegmentAlignment);
gst_xml_helper_set_prop_uint (adaptation_set_xml_node,
"subsegmentStartsWithSAP", self->subsegmentStartsWithSAP);
gst_xml_helper_set_prop_boolean (adaptation_set_xml_node,
"bitstreamSwitching", self->bitstreamSwitching);
g_list_foreach (self->Accessibility, gst_mpd_node_get_list_item,
adaptation_set_xml_node);
g_list_foreach (self->Role, gst_mpd_node_get_list_item,
adaptation_set_xml_node);
g_list_foreach (self->Rating, gst_mpd_node_get_list_item,
adaptation_set_xml_node);
g_list_foreach (self->Viewpoint, gst_mpd_node_get_list_item,
adaptation_set_xml_node);
gst_mpd_node_add_child_node (GST_MPD_NODE (self->SegmentBase),
adaptation_set_xml_node);
gst_mpd_mult_segment_base_node_add_child_node (GST_MPD_NODE
(self->SegmentList), adaptation_set_xml_node);
gst_mpd_mult_segment_base_node_add_child_node (GST_MPD_NODE
(self->SegmentTemplate), adaptation_set_xml_node);
g_list_foreach (self->BaseURLs, gst_mpd_node_get_list_item,
adaptation_set_xml_node);
g_list_foreach (self->Representations,
gst_mpd_representation_base_node_get_list_item, adaptation_set_xml_node);
g_list_foreach (self->ContentComponents, gst_mpd_node_get_list_item,
adaptation_set_xml_node);
if (self->xlink_href)
gst_xml_helper_set_prop_string (adaptation_set_xml_node, "xlink_href",
self->xlink_href);
if (self->actuate == GST_MPD_XLINK_ACTUATE_ON_LOAD)
gst_xml_helper_set_prop_string (adaptation_set_xml_node, "actuate",
(gchar *) GST_MPD_XLINK_ACTUATE_ON_LOAD_STR);
return adaptation_set_xml_node;
}
static void
gst_mpd_adaptation_set_node_class_init (GstMPDAdaptationSetNodeClass * 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_adaptation_set_node_finalize;
object_class->set_property = gst_mpd_adaptation_set_node_set_property;
object_class->get_property = gst_mpd_adaptation_set_node_get_property;
m_klass->get_xml_node = gst_mpd_adaptation_set_get_xml_node;
g_object_class_install_property (object_class, PROP_MPD_ADAPTATION_SET_ID,
g_param_spec_int ("id", "id",
"adaptation set id", 0, G_MAXINT, 0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (object_class,
PROP_MPD_ADAPTATION_SET_CONTENT_TYPE, g_param_spec_string ("content-type",
"content type", "content type of the adaptation set", NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
static void
gst_mpd_adaptation_set_node_init (GstMPDAdaptationSetNode * self)
{
self->id = 0;
self->group = 0;
self->lang = NULL; /* LangVectorType RFC 5646 */
self->contentType = NULL;
self->par = 0;
self->minBandwidth = 0;
self->maxBandwidth = 0;
self->minWidth = 0;
self->maxWidth = 0;
self->minHeight = 0;
self->maxHeight = 0;
self->segmentAlignment = NULL;
self->subsegmentAlignment = NULL;
self->subsegmentStartsWithSAP = GST_SAP_TYPE_0;
self->bitstreamSwitching = FALSE;
/* list of Accessibility DescriptorType nodes */
self->Accessibility = NULL;
/* list of Role DescriptorType nodes */
self->Role = NULL;
/* list of Rating DescriptorType nodes */
self->Rating = NULL;
/* list of Viewpoint DescriptorType nodes */
self->Viewpoint = NULL;
/* SegmentBase node */
self->SegmentBase = NULL;
/* SegmentList node */
self->SegmentList = NULL;
/* SegmentTemplate node */
self->SegmentTemplate = NULL;
/* list of BaseURL nodes */
self->BaseURLs = NULL;
/* list of Representation nodes */
self->Representations = NULL;
/* list of ContentComponent nodes */
self->ContentComponents = NULL;
self->xlink_href = NULL;
self->actuate = GST_MPD_XLINK_ACTUATE_ON_REQUEST;
}
GstMPDAdaptationSetNode *
gst_mpd_adaptation_set_node_new (void)
{
return g_object_new (GST_TYPE_MPD_ADAPTATION_SET_NODE, NULL);
}
void
gst_mpd_adaptation_set_node_free (GstMPDAdaptationSetNode * self)
{
if (self)
gst_object_unref (self);
}