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/*
* Copyright (C) 2011 Jens Georg
*
* Author: Jens Georg <mail@jensge.org>
*
* This file is part of Rygel.
*
* Rygel 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 of the License, or
* (at your option) any later version.
*
* Rygel 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 program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
internal errordomain Rygel.Mediathek.VideoItemError {
XML_PARSE_ERROR,
NETWORK_ERROR
}
internal class Rygel.Mediathek.VideoItem : Rygel.TrackableItem,
Rygel.VideoItem {
public VideoItem (string id, MediaContainer parent, string title) {
base (id, parent, title);
}
}
internal class Rygel.Mediathek.VideoItemFactory : Object {
private static VideoItemFactory instance;
private PlaylistParser playlist_parser;
private const string VIDEO_FORMAT_WMV = "wmv";
private const string VIDEO_FORMAT_MP4 = "mp4";
private string video_format;
public static VideoItemFactory get_default () {
if (instance == null) {
instance = new VideoItemFactory ();
}
return instance;
}
public async VideoItem? create (MediaContainer parent,
Xml.Node *xml_item)
throws VideoItemError {
string title, playlist_url, date, description = null;
this.extract_data_from_xml (xml_item,
out title,
out playlist_url,
out date,
out description);
var resolved_uris = yield playlist_parser.parse (playlist_url);
if (resolved_uris == null || resolved_uris.size == 0) {
return null;
}
var id = Checksum.compute_for_string (ChecksumType.MD5, title);
var item = new VideoItem (id, parent, title);
item.mime_type = this.playlist_parser.mime_type;
item.author = "ZDF - Second German TV Channel Streams";
item.date = date;
item.description = description;
if (this.video_format == VIDEO_FORMAT_WMV) {
item.dlna_profile = "WMVMED_FULL";
}
foreach (var uri in resolved_uris) {
item.add_uri (uri);
}
return item;
}
private VideoItemFactory () {
this.video_format = VIDEO_FORMAT_MP4;
debug ("Exposing mediathek items in format: mp4");
var session = RootContainer.get_default_session ();
this.playlist_parser = new MovPlaylistParser (session);
}
private bool namespace_ok (Xml.Node* node, string prefix = "media") {
return node->ns != null && node->ns->prefix == prefix;
}
private void extract_data_from_xml (Xml.Node *item,
out string title,
out string playlist_url,
out string? date,
out string? description)
throws VideoItemError {
var title_node = XMLUtils.get_element (item, "title");
var group = XMLUtils.get_element (item, "group");
playlist_url = null;
if (title_node == null) {
throw new VideoItemError.XML_PARSE_ERROR ("No 'title' element");
}
if (group == null) {
throw new VideoItemError.XML_PARSE_ERROR ("No 'group' element");
}
if (!namespace_ok (group)) {
throw new VideoItemError.XML_PARSE_ERROR ("Invalid namespace");
}
var content = XMLUtils.get_element (group, "content");
if (content == null) {
throw new VideoItemError.XML_PARSE_ERROR
("'group' has no 'content' element");
}
// content points to the first content subnode now
while (content != null) {
var url_attribute = content->has_prop ("url");
if (url_attribute != null && namespace_ok (content)) {
unowned string url = url_attribute->children->content;
if (url.has_suffix (this.playlist_parser.playlist_suffix)) {
playlist_url = url;
break;
}
}
content = content->next;
}
if (playlist_url == null) {
throw new VideoItemError.XML_PARSE_ERROR ("No URL found");
}
title = title_node->get_content ();
var date_node = XMLUtils.get_element (item, "date");
if (date_node != null && this.namespace_ok (date_node, "dc")) {
date = date_node->get_content ();
} else {
date = null;
}
var desc_node = XMLUtils.get_element (item, "description");
if (desc_node != null) {
description = desc_node->get_content ();
} else {
description = null;
}
}
}
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