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 "gstmpdrootnode.h"
22 #include "gstmpdparser.h"
23
24 G_DEFINE_TYPE (GstMPDRootNode, gst_mpd_root_node, GST_TYPE_MPD_NODE);
25
26 enum
27 {
28 PROP_MPD_ROOT_0,
29 PROP_MPD_ROOT_DEFAULT_NAMESPACE,
30 PROP_MPD_ROOT_NAMESPACE_XSI,
31 PROP_MPD_ROOT_NAMESPACE_EXT,
32 PROP_MPD_ROOT_SCHEMA_LOCATION,
33 PROP_MPD_ROOT_ID,
34 PROP_MPD_ROOT_PROFILES,
35 PROP_MPD_ROOT_TYPE,
36 PROP_MPD_ROOT_PUBLISH_TIME,
37 PROP_MPD_ROOT_AVAILABILTY_START_TIME,
38 PROP_MPD_ROOT_AVAILABILTY_END_TIME,
39 PROP_MPD_ROOT_MEDIA_PRESENTATION_DURATION,
40 PROP_MPD_ROOT_MINIMUM_UPDATE_PERIOD,
41 PROP_MPD_ROOT_MIN_BUFFER_TIME,
42 PROP_MPD_ROOT_TIMESHIFT_BUFFER_DEPTH,
43 PROP_MPD_ROOT_SUGGESTED_PRESENTATION_DELAY,
44 PROP_MPD_ROOT_MAX_SEGMENT_DURATION,
45 PROP_MPD_ROOT_MAX_SUBSEGMENT_DURATION,
46 };
47
48 /* GObject VMethods */
49
50 static void
gst_mpd_root_node_set_property(GObject * object,guint prop_id,const GValue * value,GParamSpec * pspec)51 gst_mpd_root_node_set_property (GObject * object, guint prop_id,
52 const GValue * value, GParamSpec * pspec)
53 {
54 GstMPDRootNode *self = GST_MPD_ROOT_NODE (object);
55 switch (prop_id) {
56 case PROP_MPD_ROOT_DEFAULT_NAMESPACE:
57 g_free (self->default_namespace);
58 self->default_namespace = g_value_dup_string (value);
59 break;
60 case PROP_MPD_ROOT_NAMESPACE_XSI:
61 g_free (self->namespace_xsi);
62 self->namespace_xsi = g_value_dup_string (value);
63 break;
64 case PROP_MPD_ROOT_NAMESPACE_EXT:
65 g_free (self->namespace_ext);
66 self->namespace_ext = g_value_dup_string (value);
67 break;
68 case PROP_MPD_ROOT_SCHEMA_LOCATION:
69 g_free (self->schemaLocation);
70 self->schemaLocation = g_value_dup_string (value);
71 break;
72 case PROP_MPD_ROOT_ID:
73 g_free (self->id);
74 self->id = g_value_dup_string (value);
75 break;
76 case PROP_MPD_ROOT_PROFILES:
77 g_free (self->profiles);
78 self->profiles = g_value_dup_string (value);
79 break;
80 case PROP_MPD_ROOT_TYPE:
81 self->type = (GstMPDFileType) g_value_get_int (value);
82 break;
83 case PROP_MPD_ROOT_AVAILABILTY_START_TIME:
84 if (self->availabilityStartTime)
85 gst_date_time_unref (self->availabilityStartTime);
86 self->availabilityStartTime = g_value_dup_boxed (value);
87 break;
88 case PROP_MPD_ROOT_AVAILABILTY_END_TIME:
89 if (self->availabilityEndTime)
90 gst_date_time_unref (self->availabilityEndTime);
91 self->availabilityEndTime = g_value_dup_boxed (value);
92 break;
93 case PROP_MPD_ROOT_PUBLISH_TIME:
94 if (self->publishTime)
95 gst_date_time_unref (self->publishTime);
96 self->publishTime = g_value_dup_boxed (value);
97 break;
98 case PROP_MPD_ROOT_MEDIA_PRESENTATION_DURATION:
99 self->mediaPresentationDuration = g_value_get_uint64 (value);
100 break;
101 case PROP_MPD_ROOT_MINIMUM_UPDATE_PERIOD:
102 self->minimumUpdatePeriod = g_value_get_uint64 (value);
103 break;
104 case PROP_MPD_ROOT_MIN_BUFFER_TIME:
105 self->minBufferTime = g_value_get_uint64 (value);
106 break;
107 default:
108 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
109 break;
110 }
111 }
112
113 static void
gst_mpd_root_node_get_property(GObject * object,guint prop_id,GValue * value,GParamSpec * pspec)114 gst_mpd_root_node_get_property (GObject * object, guint prop_id,
115 GValue * value, GParamSpec * pspec)
116 {
117 GstMPDRootNode *self = GST_MPD_ROOT_NODE (object);
118 switch (prop_id) {
119 case PROP_MPD_ROOT_DEFAULT_NAMESPACE:
120 g_value_set_string (value, self->default_namespace);
121 break;
122 case PROP_MPD_ROOT_NAMESPACE_XSI:
123 g_value_set_string (value, self->namespace_xsi);
124 break;
125 case PROP_MPD_ROOT_NAMESPACE_EXT:
126 g_value_set_string (value, self->namespace_ext);
127 break;
128 case PROP_MPD_ROOT_SCHEMA_LOCATION:
129 g_value_set_string (value, self->schemaLocation);
130 break;
131 case PROP_MPD_ROOT_ID:
132 g_value_set_string (value, self->id);
133 break;
134 case PROP_MPD_ROOT_PROFILES:
135 g_value_set_string (value, self->profiles);
136 break;
137 case PROP_MPD_ROOT_TYPE:
138 g_value_set_int (value, self->type);
139 break;
140 case PROP_MPD_ROOT_AVAILABILTY_START_TIME:
141 g_value_set_boxed (value, self->availabilityStartTime);
142 break;
143 case PROP_MPD_ROOT_AVAILABILTY_END_TIME:
144 g_value_set_boxed (value, self->availabilityEndTime);
145 break;
146 case PROP_MPD_ROOT_PUBLISH_TIME:
147 g_value_set_boxed (value, self->publishTime);
148 break;
149 case PROP_MPD_ROOT_MEDIA_PRESENTATION_DURATION:
150 g_value_set_uint64 (value, self->mediaPresentationDuration);
151 break;
152 case PROP_MPD_ROOT_MINIMUM_UPDATE_PERIOD:
153 g_value_set_uint64 (value, self->minimumUpdatePeriod);
154 break;
155 case PROP_MPD_ROOT_MIN_BUFFER_TIME:
156 g_value_set_uint64 (value, self->minBufferTime);
157 break;
158 default:
159 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
160 break;
161 }
162 }
163
164 static void
gst_mpd_root_node_finalize(GObject * object)165 gst_mpd_root_node_finalize (GObject * object)
166 {
167 GstMPDRootNode *self = GST_MPD_ROOT_NODE (object);
168
169 g_free (self->default_namespace);
170 g_free (self->namespace_xsi);
171 g_free (self->namespace_ext);
172 g_free (self->schemaLocation);
173 g_free (self->id);
174 g_free (self->profiles);
175
176 if (self->availabilityStartTime)
177 gst_date_time_unref (self->availabilityStartTime);
178 if (self->availabilityEndTime)
179 gst_date_time_unref (self->availabilityEndTime);
180 if (self->publishTime)
181 gst_date_time_unref (self->publishTime);
182
183 g_list_free_full (self->ProgramInfos,
184 (GDestroyNotify) gst_mpd_program_information_node_free);
185 g_list_free_full (self->BaseURLs, (GDestroyNotify) gst_mpd_baseurl_node_free);
186 g_list_free_full (self->Locations,
187 (GDestroyNotify) gst_mpd_location_node_free);
188 g_list_free_full (self->Periods, (GDestroyNotify) gst_mpd_period_node_free);
189 g_list_free_full (self->Metrics, (GDestroyNotify) gst_mpd_metrics_node_free);
190 g_list_free_full (self->UTCTimings,
191 (GDestroyNotify) gst_mpd_utctiming_node_free);
192
193
194 G_OBJECT_CLASS (gst_mpd_root_node_parent_class)->finalize (object);
195 }
196
197 /* Base class */
198
199 static xmlNodePtr
gst_mpd_root_get_xml_node(GstMPDNode * node)200 gst_mpd_root_get_xml_node (GstMPDNode * node)
201 {
202 xmlNodePtr root_xml_node;
203 GstMPDRootNode *self = GST_MPD_ROOT_NODE (node);
204
205 root_xml_node = xmlNewNode (NULL, (xmlChar *) "MPD");
206
207 gst_xml_helper_set_prop_string (root_xml_node, "xmlns",
208 self->default_namespace);
209 gst_xml_helper_set_prop_string (root_xml_node, "profiles", self->profiles);
210 gst_xml_helper_set_prop_string (root_xml_node, "schemaLocation",
211 self->schemaLocation);
212 gst_xml_helper_set_prop_string (root_xml_node, "xmlns:xsi",
213 self->namespace_xsi);
214 gst_xml_helper_set_prop_string (root_xml_node, "xmlns:ext",
215 self->namespace_ext);
216 gst_xml_helper_set_prop_string (root_xml_node, "id", self->id);
217
218 if (self->type == GST_MPD_FILE_TYPE_STATIC)
219 gst_xml_helper_set_prop_string (root_xml_node, "type", (gchar *) "static");
220 else
221 gst_xml_helper_set_prop_string (root_xml_node, "type", (gchar *) "dynamic");
222
223
224 gst_xml_helper_set_prop_date_time (root_xml_node, "availabilityStartTime",
225 self->availabilityStartTime);
226
227 gst_xml_helper_set_prop_date_time (root_xml_node, "availabilityEndTime",
228 self->availabilityEndTime);
229 gst_xml_helper_set_prop_date_time (root_xml_node, "publishTime",
230 self->publishTime);
231
232 if (self->mediaPresentationDuration)
233 gst_xml_helper_set_prop_duration (root_xml_node,
234 "mediaPresentationDuration", self->mediaPresentationDuration);
235 if (self->minimumUpdatePeriod)
236 gst_xml_helper_set_prop_duration (root_xml_node, "minimumUpdatePeriod",
237 self->minimumUpdatePeriod);
238 if (self->minBufferTime)
239 gst_xml_helper_set_prop_duration (root_xml_node, "minBufferTime",
240 self->minBufferTime);
241 if (self->timeShiftBufferDepth)
242 gst_xml_helper_set_prop_duration (root_xml_node, "timeShiftBufferDepth",
243 self->timeShiftBufferDepth);
244 if (self->suggestedPresentationDelay)
245 gst_xml_helper_set_prop_duration (root_xml_node,
246 "suggestedPresentationDelay", self->suggestedPresentationDelay);
247 if (self->maxSegmentDuration)
248 gst_xml_helper_set_prop_duration (root_xml_node, "maxSegmentDuration",
249 self->maxSegmentDuration);
250 if (self->maxSubsegmentDuration)
251 gst_xml_helper_set_prop_duration (root_xml_node, "maxSubsegmentDuration",
252 self->maxSubsegmentDuration);
253
254 g_list_foreach (self->BaseURLs, gst_mpd_node_get_list_item, root_xml_node);
255 g_list_foreach (self->Locations, gst_mpd_node_get_list_item, root_xml_node);
256 g_list_foreach (self->ProgramInfos, gst_mpd_node_get_list_item,
257 root_xml_node);
258 g_list_foreach (self->Periods, gst_mpd_node_get_list_item, root_xml_node);
259 g_list_foreach (self->Metrics, gst_mpd_node_get_list_item, root_xml_node);
260 g_list_foreach (self->UTCTimings, gst_mpd_node_get_list_item, root_xml_node);
261
262 return root_xml_node;
263 }
264
265 static gboolean
gst_mpd_root_get_xml_buffer(GstMPDNode * node,gchar ** doc_content,gint * doc_size)266 gst_mpd_root_get_xml_buffer (GstMPDNode * node, gchar ** doc_content,
267 gint * doc_size)
268 {
269 xmlDocPtr doc;
270 xmlNodePtr root_xml_node;
271 xmlChar *xmlbody;
272
273 doc = xmlNewDoc ((xmlChar *) "1.0");
274 root_xml_node = gst_mpd_root_get_xml_node (node);
275 xmlDocSetRootElement (doc, root_xml_node);
276
277 xmlDocDumpMemory (doc, &xmlbody, doc_size);
278 *doc_content = g_strndup ((gchar *) xmlbody, *doc_size);
279 xmlFree (xmlbody);
280
281 xmlFreeDoc (doc);
282 return TRUE;
283 }
284
285 static void
gst_mpd_root_node_class_init(GstMPDRootNodeClass * klass)286 gst_mpd_root_node_class_init (GstMPDRootNodeClass * klass)
287 {
288 GObjectClass *object_class;
289 GstMPDNodeClass *m_klass;
290
291
292 object_class = G_OBJECT_CLASS (klass);
293 m_klass = GST_MPD_NODE_CLASS (klass);
294
295 object_class->finalize = gst_mpd_root_node_finalize;
296 object_class->set_property = gst_mpd_root_node_set_property;
297 object_class->get_property = gst_mpd_root_node_get_property;
298
299 m_klass->get_xml_buffer = gst_mpd_root_get_xml_buffer;
300 m_klass->get_xml_node = gst_mpd_root_get_xml_node;
301
302 g_object_class_install_property (object_class,
303 PROP_MPD_ROOT_DEFAULT_NAMESPACE, g_param_spec_string ("default-namespace",
304 "default namespace", "default namespace", NULL,
305 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
306 g_object_class_install_property (object_class, PROP_MPD_ROOT_NAMESPACE_XSI,
307 g_param_spec_string ("namespace-xsi", "namespace xsi", "namespace xsi",
308 NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
309 g_object_class_install_property (object_class, PROP_MPD_ROOT_NAMESPACE_EXT,
310 g_param_spec_string ("namespace-ext", "namespace ext", "namespace ext",
311 NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
312 g_object_class_install_property (object_class, PROP_MPD_ROOT_SCHEMA_LOCATION,
313 g_param_spec_string ("schema-location", "schema location",
314 "schema location for period", NULL,
315 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
316 g_object_class_install_property (object_class, PROP_MPD_ROOT_ID,
317 g_param_spec_string ("id", "id", "unique id for period", NULL,
318 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
319 g_object_class_install_property (object_class, PROP_MPD_ROOT_PROFILES,
320 g_param_spec_string ("profiles", "profiles", "profiles", NULL,
321 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
322 g_object_class_install_property (object_class, PROP_MPD_ROOT_TYPE,
323 g_param_spec_int ("type", "MPD type",
324 "MPD type",
325 GST_MPD_FILE_TYPE_STATIC, GST_MPD_FILE_TYPE_DYNAMIC,
326 GST_MPD_FILE_TYPE_STATIC,
327 (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
328 g_object_class_install_property (object_class,
329 PROP_MPD_ROOT_AVAILABILTY_START_TIME,
330 g_param_spec_boxed ("availability-start-time", "Availability start time",
331 "MPD availability start time", GST_TYPE_DATE_TIME,
332 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
333 g_object_class_install_property (object_class,
334 PROP_MPD_ROOT_AVAILABILTY_END_TIME,
335 g_param_spec_boxed ("availability-end-time", "Availability end time",
336 "MPD availability end time", GST_TYPE_DATE_TIME,
337 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
338 g_object_class_install_property (object_class,
339 PROP_MPD_ROOT_PUBLISH_TIME,
340 g_param_spec_boxed ("publish-time", "publish time",
341 "MPD publish time", GST_TYPE_DATE_TIME,
342 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
343 g_object_class_install_property (object_class,
344 PROP_MPD_ROOT_MEDIA_PRESENTATION_DURATION,
345 g_param_spec_uint64 ("media-presentation-duration",
346 "media presentation duration", "media presentation duration", 0,
347 G_MAXUINT64, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
348 g_object_class_install_property (object_class,
349 PROP_MPD_ROOT_MINIMUM_UPDATE_PERIOD,
350 g_param_spec_uint64 ("minimum-update-period",
351 "minimum update period", "minimum update period", 0,
352 G_MAXUINT64, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
353 g_object_class_install_property (object_class,
354 PROP_MPD_ROOT_MIN_BUFFER_TIME,
355 g_param_spec_uint64 ("min-buffer-time", "mininim buffer time",
356 "mininim buffer time", 0,
357 G_MAXUINT64, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
358 }
359
360 static void
gst_mpd_root_node_init(GstMPDRootNode * self)361 gst_mpd_root_node_init (GstMPDRootNode * self)
362 {
363 self->default_namespace = NULL;
364 self->namespace_xsi = NULL;
365 self->namespace_ext = NULL;
366 self->schemaLocation = NULL;
367 self->id = NULL;
368 self->profiles = NULL;
369 self->type = GST_MPD_FILE_TYPE_STATIC;
370 self->availabilityStartTime = NULL;
371 self->availabilityEndTime = NULL;
372 self->publishTime = NULL;
373 self->mediaPresentationDuration = 0; /* [ms] */
374 self->minimumUpdatePeriod = 0; /* [ms] */
375 self->minBufferTime = 2000; /* [ms] */
376 self->timeShiftBufferDepth = 0; /* [ms] */
377 self->suggestedPresentationDelay = 0; /* [ms] */
378 self->maxSegmentDuration = 0; /* [ms] */
379 self->maxSubsegmentDuration = 0; /* [ms] */
380 /* list of BaseURL nodes */
381 self->BaseURLs = NULL;
382 /* list of Location nodes */
383 self->Locations = NULL;
384 /* List of ProgramInformation nodes */
385 self->ProgramInfos = NULL;
386 /* list of Periods nodes */
387 self->Periods = NULL;
388 /* list of Metrics nodes */
389 self->Metrics = NULL;
390 /* list of GstUTCTimingNode nodes */
391 self->UTCTimings = NULL;
392 }
393
394 GstMPDRootNode *
gst_mpd_root_node_new(void)395 gst_mpd_root_node_new (void)
396 {
397 return g_object_new (GST_TYPE_MPD_ROOT_NODE, NULL);
398 }
399
400 void
gst_mpd_root_node_free(GstMPDRootNode * self)401 gst_mpd_root_node_free (GstMPDRootNode * self)
402 {
403 if (self)
404 gst_object_unref (self);
405 }
406