One more note: search for the file indicated with FILE should obviously be case insansitive.

*** Bug 128047 has been marked as a duplicate of this bug. ***

I quite Often come accross the situation when cue filename is different from the coresponding mp3 filename. Is it just me beeing so unlucky?

Created attachment 19133 [details]
Provides the fix for this feature request/bug

Hope it's good, that's my first OSS contribution ever :-)

SVN commit 620635 by aumuell:

support for cue files in same directory as audio file but with a different base name
- thanks to Dawid Wrobel <dawid@klej.net>for the patch
BUG: 128046


 M  +2 -0      ChangeLog  
 M  +62 -2     src/contextbrowser.cpp  


--- trunk/extragear/multimedia/amarok/ChangeLog #620634:620635
@@ -45,6 +45,8 @@
       you move and rename them.
 
   CHANGES:
+    * Support for cue files not matching audio files' name. Patch by Dawid
+      Wróbel <dawid@klej.net>. (BR 128046)
     * Script Manager now remembers if categories were open or closed.
     * Restart collection scanner as long as not more than 5 % of the files
       make it crash. (BR 106474)
--- trunk/extragear/multimedia/amarok/src/contextbrowser.cpp #620634:620635
@@ -649,14 +649,74 @@
 
     if (trackChanged && bundle.url().isLocalFile())
     {
-        // look if there is a cue-file
+
+        /** The cue file that is provided with the media might have different name than the
+           * media file itself, hence simply cutting the media extension and adding ".cue"
+           * is not always enough to find the matching cue file. In such cases we have
+           * to search for all the cue files in the directory and have a look inside them for
+           * the matching FILE="" stanza. However the FILE="" stanza does not always
+           * point at the coresponding media file (e.g. it is quite often set to the misleading
+           * FILE="audio.wav" WAV). Therfore we also have to check blindly if there is a cue
+           * file having the same name as the media file played, as described above.
+           */
+
+        // look for the cue file that matches the media file played first
         QString path    = bundle.url().path();
         QString cueFile = path.left( path.findRev('.') ) + ".cue";
 
         m_cuefile->setCueFileName( cueFile );
 
         if( m_cuefile->load() )
-            debug() << "[CUEFILE]: " << cueFile << " found and loaded." << endl;
+            debug() << "[CUEFILE]: " << cueFile << " - Shoot blindly, found and loaded. " << endl;
+
+        // if unlucky, let's have a look inside cue files, if any
+        else
+        {
+            debug() << "[CUEFILE]: " << cueFile << " - Shoot blindly and missed, searching for other cue files." << endl;
+
+            bool foundCueFile = false;
+            QDir dir ( bundle.directory() );    
+            dir.setFilter( QDir::Files ) ;
+            dir.setNameFilter( "*.cue *.CUE" ) ;
+
+            QStringList cueFilesList = dir.entryList();
+
+            if ( !cueFilesList.empty() )
+                for ( QStringList::Iterator it = cueFilesList.begin(); it != cueFilesList.end() && !foundCueFile; ++it ) 
+                {
+                    QFile file ( dir.filePath(*it) );
+                    if( file.open( IO_ReadOnly ) )
+                    {
+                        debug() << "[CUEFILE]: " << *it << " - Opened, looking for the matching FILE stanza." << endl;
+                        QTextStream stream( &file );
+                        QString line;
+
+                        while ( !stream.atEnd() && !foundCueFile)
+                        {
+                            line = stream.readLine().simplifyWhiteSpace();
+
+                            if( line.startsWith( "file", false ) )
+                            {
+                                line = line.mid( 5 ).remove( '"' );
+
+                                if ( line.contains( bundle.filename(), false ) )
+                                {
+                                    cueFile = dir.filePath(*it);
+                                    foundCueFile = true;
+                                    m_cuefile->setCueFileName( cueFile );
+                                    if( m_cuefile->load() )
+                                        debug() << "[CUEFILE]: " << cueFile << " - Looked inside cue files, found and loaded proper one" << endl;
+                                }
+                            }
+                        }
+
+                        file.close();
+                    }
+                }
+
+            if ( !foundCueFile )
+                debug() << "[CUEFILE]: - Didn't find any matching cue file." << endl;
+        }
     }
 }
 

Thanks for fixing your bug and your first OS contribution! I could not test it, but as you are the original reporter, I assume that the problem is really resolved.

Next time, please don't include files unrelated to the bug resolution (in this case amarok.kdevelop) in the patch.

I knew about that amarok.kdevelop but eventually forgot to delete it from svn diff output. Thanks for your quick response.