[Pmplib-commits] SF.net SVN: pmplib: [13] trunk/lib/playlist

[<ny...@us...>]

Revision: 13
Author:   nyaochi
Date:     2006-05-05 06:54:22 -0700 (Fri, 05 May 2006)
ViewCVS:  http://svn.sourceforge.net/pmplib/?rev=13&view=rev

Log Message:
-----------
Added sample JSPL files.

Added Paths:
-----------
    trunk/lib/playlist/sample/
    trunk/lib/playlist/sample/artist.jspl
    trunk/lib/playlist/sample/artists.jspl
    trunk/lib/playlist/sample/top_ranking.jspl
Added: trunk/lib/playlist/sample/artist.jspl
===================================================================
--- trunk/lib/playlist/sample/artist.jspl	                        (rev 0)
+++ trunk/lib/playlist/sample/artist.jspl	2006-05-05 13:54:22 UTC (rev 13)
@@ -0,0 +1,39 @@
+/*
+ *      Artist playlist
+ *
+ * This JSPL extracts tracks performed by the artist whose name is
+ * is specified by either variable 'artist_name' or filename of this JSPL.
+ *
+ */
+
+// Change this to specify the artist name
+var artist_name = "";
+
+include("playlist.js");
+
+function main(media, source)
+{
+	// Check artist_name.
+	if (!artist_name) {
+		// Retrieve an artist name from the filename.
+		var begin = 0, end = source.length;
+		for (var i = 0;i < source.length;++i) {
+			if (source[i] == '\\' || source[i] == '/')
+				begin = i;
+			if (source[i] == '.')
+				end = i;
+		}
+		artist_name = source.slice(begin, end);
+	}
+
+	// Convert the artist name to lower case.
+	artist_name = artist_name.toLowerCase();
+
+	var pl = new Playlist();
+	for (var i = 0;i < media.length;++i)
+		if (media[i].artist.toLowerCase() == artist_name)
+			pl.push(media[i]);
+	pl.order("album", "track_number");
+
+	return pl;
+}

Added: trunk/lib/playlist/sample/artists.jspl
===================================================================
--- trunk/lib/playlist/sample/artists.jspl	                        (rev 0)
+++ trunk/lib/playlist/sample/artists.jspl	2006-05-05 13:54:22 UTC (rev 13)
@@ -0,0 +1,29 @@
+/*
+ *      Artists playlist
+ *
+ * This JSPL generates multiple playlists each of which collects tracks
+ * performed by an artist.
+ *
+ */
+
+include("playlist.js");
+
+function main(media, playlist)
+{
+	var pls = new Object();
+
+	for (var i = 0;i < media.length;++i) {
+		var artist = media[i].artist.toLowerCase();
+		var pl = pls[artist];
+		if (pl == undefined)
+			pl = pls[artist] = new Playlist();
+		pl.push(media[i]);
+	}
+
+	for (var name in pls) {
+		var pl = pls[name];
+		pl.order("album", "track_number");
+	}
+
+	return pls;
+}

Added: trunk/lib/playlist/sample/top_ranking.jspl
===================================================================
--- trunk/lib/playlist/sample/top_ranking.jspl	                        (rev 0)
+++ trunk/lib/playlist/sample/top_ranking.jspl	2006-05-05 13:54:22 UTC (rev 13)
@@ -0,0 +1,26 @@
+/*
+ *      Top ranking playlist
+ *
+ * This playlist uses play_count field to generate a ranking playlist.
+ * The play_count field is currently set by iRiver H10, H10Jr, and U10.
+ *
+ */
+
+
+// Change this to specify the number of top tracks.
+var num_top = 50;
+
+include("playlist.js");
+
+function main(media, source)
+{
+	var pl = new Playlist();
+
+	for (var i = 0;i < media.length;++i)
+		pl.push(media[i]);
+
+	pl.order("-play_count");
+
+	var end = Math.min(pl.length, num_top);
+	return pl.slice(0, end);
+}


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