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/*
* Copyright (C) 2008 Zeeshan Ali <zeenix@gmail.com>.
*
* Author: Zeeshan Ali <zeenix@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
using GUPnP;
using Gee;
public errordomain Rygel.MediaItemError {
UNKNOWN_URI_TYPE
}
/**
* Represents a media (Music, Video and Image) item. Provides basic
* serialization (to DIDLLiteWriter) implementation.
*/
public class Rygel.MediaItem : MediaObject {
public static const string IMAGE_CLASS = "object.item.imageItem";
public static const string VIDEO_CLASS = "object.item.videoItem";
public static const string AUDIO_CLASS = "object.item.audioItem";
public static const string MUSIC_CLASS = "object.item.audioItem.musicTrack";
public string author;
public string album;
public string date;
public string upnp_class;
public DIDLLiteResource res;
public int track_number = -1;
protected Rygel.HTTPServer http_server;
public MediaItem (string id,
string parent_id,
string title,
string upnp_class,
HTTPServer http_server) {
this.id = id;
this.parent_id = parent_id;
this.title = title;
this.upnp_class = upnp_class;
this.http_server = http_server;
this.res = DIDLLiteResource ();
this.res.reset ();
}
public override void serialize (DIDLLiteWriter didl_writer) throws Error {
didl_writer.start_item (this.id,
this.parent_id,
null,
false);
/* Add fields */
didl_writer.add_string ("title",
DIDLLiteWriter.NAMESPACE_DC,
null,
this.title);
didl_writer.add_string ("class",
DIDLLiteWriter.NAMESPACE_UPNP,
null,
this.upnp_class);
if (this.author != null && this.author != "") {
didl_writer.add_string ("creator",
DIDLLiteWriter.NAMESPACE_DC,
null,
this.author);
if (this.upnp_class.has_prefix (VIDEO_CLASS)) {
didl_writer.add_string ("author",
DIDLLiteWriter.NAMESPACE_UPNP,
null,
this.author);
} else if (this.upnp_class.has_prefix (MUSIC_CLASS)) {
didl_writer.add_string ("artist",
DIDLLiteWriter.NAMESPACE_UPNP,
null,
this.author);
}
}
if (this.track_number >= 0) {
didl_writer.add_int ("originalTrackNumber",
DIDLLiteWriter.NAMESPACE_UPNP,
null,
this.track_number);
}
if (this.album != null && this.album != "") {
didl_writer.add_string ("album",
DIDLLiteWriter.NAMESPACE_UPNP,
null,
this.album);
}
if (this.date != null && this.date != "") {
didl_writer.add_string ("date",
DIDLLiteWriter.NAMESPACE_DC,
null,
this.date);
}
/* Add resource data */
/* Protocol info */
if (this.res.uri != null) {
string protocol = get_protocol_for_uri (this.res.uri);
this.res.protocol = protocol;
}
this.res.dlna_profile = "MP3"; /* FIXME */
if (this.upnp_class.has_prefix (MediaItem.IMAGE_CLASS)) {
this.res.dlna_flags |= DLNAFlags.INTERACTIVE_TRANSFER_MODE;
} else {
this.res.dlna_flags |= DLNAFlags.STREAMING_TRANSFER_MODE;
}
if (this.res.size > 0) {
this.res.dlna_operation = DLNAOperation.RANGE;
this.res.dlna_flags |= DLNAFlags.BACKGROUND_TRANSFER_MODE;
}
/* Now get the transcoded/proxy URIs */
var res_list = this.get_transcoded_resources (res);
foreach (DIDLLiteResource trans_res in res_list) {
didl_writer.add_res (trans_res);
}
/* Add the original res in the end */
if (this.res.uri != null) {
didl_writer.add_res (res);
}
/* End of item */
didl_writer.end_item ();
}
private string get_protocol_for_uri (string uri) throws Error {
if (uri.has_prefix ("http")) {
return "http-get";
} else if (uri.has_prefix ("file")) {
return "internal";
} else if (uri.has_prefix ("rtsp")) {
// FIXME: Assuming that RTSP is always accompanied with RTP over UDP
return "rtsp-rtp-udp";
} else {
throw new MediaItemError.UNKNOWN_URI_TYPE
("Failed to probe protocol for URI %s", uri);
}
}
// FIXME: We only proxy URIs through our HTTP server for now
private ArrayList<DIDLLiteResource?>? get_transcoded_resources
(DIDLLiteResource orig_res) {
if (orig_res.protocol == "http-get")
return null;
var resources = new ArrayList<DIDLLiteResource?> ();
// Copy the original res first
DIDLLiteResource res = orig_res;
// Then modify the URI and protocol
res.uri = this.http_server.create_http_uri_for_item (this);
res.protocol = "http-get";
resources.add (res);
return resources;
}
}
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