tracker r2322 - in trunk: . data/services src/tracker-extract src/trackerd

[ifrade svn gnome org]

Author: ifrade
Date: Tue Oct  7 13:03:44 2008
New Revision: 2322
URL: http://svn.gnome.org/viewvc/tracker?rev=2322&view=rev

Log:
Initial support for playlists

Added:
   trunk/data/services/playlist.metadata
   trunk/src/tracker-extract/tracker-extract-m3u.c
Modified:
   trunk/ChangeLog
   trunk/data/services/Makefile.am
   trunk/data/services/default.service
   trunk/src/tracker-extract/Makefile.am
   trunk/src/trackerd/tracker-db.c

Modified: trunk/data/services/Makefile.am
==============================================================================
--- trunk/data/services/Makefile.am	(original)
+++ trunk/data/services/Makefile.am	Tue Oct  7 13:03:44 2008
@@ -12,6 +12,7 @@
 	file.metadata 			\
 	image.metadata 			\
 	video.metadata 			\
+	playlist.metadata		\
 	xesam-convenience.metadata 	\
 	xesam-convenience.service 	\
 	xesam.metadata 			\

Modified: trunk/data/services/default.service
==============================================================================
--- trunk/data/services/default.service	(original)
+++ trunk/data/services/default.service	Tue Oct  7 13:03:44 2008
@@ -297,3 +297,15 @@
 HasMetadata=false
 HasFullText=false
 HasThumbs=false
+
+[Playlists]
+DisplayName=Playlists
+Description=Music playlists
+Parent=Files
+PropertyPrefix=Playlist
+Mimes=audio/x-mpegurl;audio/mpegurl;audio/x-scpls;audio/vnd.rn-realaudio;audio/x-pn-realaudio;application/ram;application/vnd.ms-wpl;application/smil;audio/x-ms-asx
+KeyMetadata1=Playlist:TotalLength
+KeyMetadata2=Playlist:Songs
+HasMetadata=true
+HasFullText=false
+HasThumbs=false

Added: trunk/data/services/playlist.metadata
==============================================================================
--- (empty file)
+++ trunk/data/services/playlist.metadata	Tue Oct  7 13:03:44 2008
@@ -0,0 +1,22 @@
+[Playlist:TotalLength]
+DisplayName=Length
+Description=Total length of songs in the playlist in seconds
+DataType=integer
+Weight=1
+Filtered=false
+
+
+[Playlist:Songs]
+DisplayName=Songs
+Description=Numbers of tracks in the playlist
+DataType=integer
+Weight=1
+Filtered=false
+
+[Playlist:Name]
+DisplayName=Name
+Description=Name describing the playlist
+DataType=index
+Weight=10
+Filtered=false
+Embedded=false

Modified: trunk/src/tracker-extract/Makefile.am
==============================================================================
--- trunk/src/tracker-extract/Makefile.am	(original)
+++ trunk/src/tracker-extract/Makefile.am	Tue Oct  7 13:03:44 2008
@@ -23,6 +23,7 @@
 
 modules_LTLIBRARIES = 							\
 	libextract-abw.la 						\
+	libextract-m3u.la						\
 	libextract-imagemagick.la 					\
 	libextract-mp3.la				 		\
 	libextract-mplayer.la 						\
@@ -88,6 +89,11 @@
 libextract_imagemagick_la_LDFLAGS = $(module_flags)
 libextract_imagemagick_la_LIBADD = $(GLIB2_LIBS) $(EXEMPI_LIBS)
 
+# M3U
+libextract_m3u_la_SOURCES = tracker-extract-m3u.c
+libextract_m3u_la_LDFLAGS = $(module_flags)
+libextract_m3u_la_LIBADD = $(GLIB2_LIBS)
+
 # MP3
 libextract_mp3_la_SOURCES = tracker-extract-mp3.c $(albumart_sources)
 libextract_mp3_la_LDFLAGS = $(module_flags)

Added: trunk/src/tracker-extract/tracker-extract-m3u.c
==============================================================================
--- (empty file)
+++ trunk/src/tracker-extract/tracker-extract-m3u.c	Tue Oct  7 13:03:44 2008
@@ -0,0 +1,145 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * Copyright (C) 2007, Mr Jamie McCracken (jamiemcc gnome org)
+ * Copyright (C) 2008, Nokia
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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.
+ */
+
+#include "config.h"
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <string.h>
+#include <stdlib.h>
+#include <glib.h>
+#include <glib/gstdio.h>
+#include <gio/gio.h>
+
+#include "tracker-extract.h"
+
+#define M3U_PROPERTY_NO_TRACKS "Playlist:Songs"
+#define M3U_PROPERTY_DURATION  "Playlist:TotalLength"
+
+static void extract_m3u (const gchar *filename,
+			 GHashTable  *metadata);
+
+
+static TrackerExtractorData data[] = {
+	{ "audio/x-mpegurl", extract_m3u },
+	{ "audio/mpegurl", extract_m3u },
+	{ NULL, NULL }
+};
+
+
+static void
+extract_m3u (const gchar *filename,
+	     GHashTable  *metadata)
+{
+
+	GMappedFile *file;
+	GError      *error = NULL;
+	gchar       *contents;
+	gchar      **lines;
+	gint         i = 0, songs = 0, total_time = 0;
+	gboolean     has_metadata = FALSE;
+
+	g_type_init ();
+
+	file = g_mapped_file_new (filename, FALSE, &error);
+
+	if (error) {
+		return;
+	}
+
+	contents = g_mapped_file_get_contents (file);
+
+	if (!contents) {
+		return;
+	}
+
+	lines = g_strsplit (contents, "\n", -1);
+
+	if (!lines || !lines[0]) {
+		return;
+	}
+
+	if (strncmp (lines[0], "#EXTM3U", 7)) {
+		g_debug ("M3U extractor: '%s' is not extended m3u (basic m3u or empty file)",
+			   filename);
+		has_metadata = FALSE;
+	}
+
+	for (i = 1; lines[i] != NULL; i++) {
+		/* Skip blank lines */
+		if (g_utf8_strlen (lines[i], -1) < 2) {
+			continue;
+		}
+
+		/* Process EXTINF meta information lines */
+		if (has_metadata && g_str_has_prefix (lines[i], "#EXTINF:")) {
+			gchar **head;
+			gint    time;
+
+			/* #EXTINF:nnn, ... where nnn is length of the song in seconds */
+			head = g_strsplit (lines[i] + strlen ("#EXTINF:"), ",", 2);
+			
+			if (!head || g_strv_length (head) < 1) {
+				g_warning ("Error processing a line in %s\n",
+					   filename);
+				continue;
+			}
+
+			time = atoi (head[0]);
+
+			if (time > 0) {
+				total_time += time;
+			}
+
+			g_strfreev (head);
+
+			continue;
+		}
+		songs += 1;
+	}
+
+	g_strfreev (lines);
+
+	if (has_metadata) {
+		if (total_time < 0) {
+			total_time = -1;
+		}
+
+		g_hash_table_insert (metadata,
+				     g_strdup (M3U_PROPERTY_DURATION),
+				     g_strdup_printf ("%d", total_time));
+	}
+
+	g_hash_table_insert (metadata,
+			     g_strdup (M3U_PROPERTY_NO_TRACKS),
+			     g_strdup_printf ("%d", songs));
+
+	return;
+
+}
+
+TrackerExtractorData *
+tracker_get_extractor_data (void)
+{
+	return data;
+}

Modified: trunk/src/trackerd/tracker-db.c
==============================================================================
--- trunk/src/trackerd/tracker-db.c	(original)
+++ trunk/src/trackerd/tracker-db.c	Tue Oct  7 13:03:44 2008
@@ -146,6 +146,7 @@
 	if (add_files) {
 		services[count++] = tracker_ontology_get_service_id_by_name ("Files");
 		services[count++] = tracker_ontology_get_service_id_by_name ("Applications");
+		services[count++] = tracker_ontology_get_service_id_by_name ("Playlists");
 		services[count++] = tracker_ontology_get_service_id_by_name ("Folders");
 		services[count++] = tracker_ontology_get_service_id_by_name ("Documents");
 		services[count++] = tracker_ontology_get_service_id_by_name ("Images");