[rygel/wip/m3u: 1/2] Try to parse m3u playlists

[Jens Georg <jensgeorg src gnome org>]

commit a64fd6e0e615e330ee72f2b93d94a0ea787f2dc9
Author: Jens Georg <jensg openismus com>
Date:   Wed Nov 21 20:48:07 2012 +0100

    Try to parse m3u playlists

 src/librygel-renderer/rygel-av-transport.vala |   49 ++++++++++++++++++++++---
 1 files changed, 43 insertions(+), 6 deletions(-)
---
diff --git a/src/librygel-renderer/rygel-av-transport.vala b/src/librygel-renderer/rygel-av-transport.vala
index 35c3dbb..dd11151 100644
--- a/src/librygel-renderer/rygel-av-transport.vala
+++ b/src/librygel-renderer/rygel-av-transport.vala
@@ -342,6 +342,12 @@ internal class Rygel.AVTransport : Service {
         }
     }
 
+    private bool is_playlist (string mime, string? features) {
+        return (mime == "text/xml" &&
+                features.has_prefix ("DLNA.ORG_PN=DIDL_S")) ||
+                mime == "audio/mpegurl";
+    }
+
     private bool is_valid_mime_type (string? mime) {
         if (mime == null) {
             return false;
@@ -783,14 +789,45 @@ internal class Rygel.AVTransport : Service {
             return;
         }
 
-        unowned string xml_string = (string) message.response_body.data;
+        var content_type = message.response_headers.get_content_type (null);
+
+        MediaCollection collection = null;
+        if (content_type == "audio/mpegurl") {
+            collection = new MediaCollection ();
+            var m_stream = new MemoryInputStream.from_data
+                                        (message.response_body.data, null);
+            var stream = new DataInputStream (m_stream);
+            size_t length;
+            debug ("Trying to parse playlist");
+            try {
+                var line = stream.read_line (out length);
+                while (line != null) {
+                    while (line != null && line.has_prefix ("#")) {
+                        line = stream.read_line (out length);
+                    }
+                    if (line == null) {
+                        break;
+                    }
 
-        var collection = new MediaCollection.from_string (xml_string);
-        if (collection.get_items ().length () == 0) {
-            // FIXME: Return a more sensible error here.
-            action.return_error (716, _("Resource not found"));
+                    debug ("Adding uri with %s", line);
+                    var item = collection.add_item ();
+                    var resource = item.add_resource ();
+                    resource.uri = line;
 
-            return;
+                    line = stream.read_line (out length);
+                }
+            } catch (Error error) {
+                debug ("Error in playlist: %s", error.message);
+            }
+        } else {
+            unowned string xml_string = (string) message.response_body.data;
+            collection = new MediaCollection.from_string (xml_string);
+            if (collection.get_items ().length () == 0) {
+                // FIXME: Return a more sensible error here.
+                action.return_error (716, _("Resource not found"));
+
+                return;
+            }
         }
 
         this.controller.set_playlist (collection);