Changeset 28351 for gs2-extensions/afrepo

Timestamp:

2013-10-03T01:07:37+13:00 (11 years ago)

Author:

davidb

Message:

Added in ability to generate download page

File:

• gs2-extensions/afrepo/trunk/src/src/AFRepo.GSDLEXT.class.php.in (modified) (2 diffs)

gs2-extensions/afrepo/trunk/src/src/AFRepo.GSDLEXT.class.php.in

@@ -58 +58 @@
 
 
-    protected function remove_audio_files_prefix($full_filepath) {
+    public function remove_audio_files_prefix($full_filepath) {
 #     echo "full filepath = " . $full_filepath . "\n";
 #     echo "af prefix = " . $this->af_prefix . "\n";
@@ -285 +285 @@
         return null;
     }
+
+
+
+
+    /**
+     * extraTriples
+     * Return an array of any extra implementation-specific triples should be 
+     * added to the RDF given the ID of an audiofile
+     *
+     * This should be an array of triples in Turtle format without the trailing 
+     * dot. (See generateRDF)
+     * It should return triples about all audiofiles of the same song rather 
+     * than just the one with the ID given.
+     */
+    protected function extraTriples($id) {
+
+        $extra_triples = array();
+
+
+        // analyze the file, get some metadata
+        $structured_metadata = $this->getStructuredMetadata($id);
+
+        if ($structured_metadata !== false) {
+
+        }
+
+        // loop through the audiofiles for this tune
+        /* foreach ($ids as $key => $fileid) { */
+
+        /*  // some identifiers */
+        /*  $audiofile = "repo:$fileid"; */
+        /*  $digitalsignal = "repo:$fileid#DigitalSignal"; */
+
+        /*  // triples about the document */
+        /*  $triples[] = "{$audiofile}_ a foaf:Document; foaf:primaryTopic $audiofile"; */
+
+        /*  // this is a mo:AudioFile, which is a mo:MusicalItem */
+        /*  $triples[] = "$audiofile a mo:AudioFile"; */
+
+        /*  // this encodes a corresponding digital signal */
+        /*  $triples[] = "$audiofile mo:encodes $digitalsignal"; */
+
+        /*  // our digital signal is a mo:DigitalSignal (which is a subclass of  */
+        /*  // mo:Signal, which is a subclass of mo:MusicalExpression) */
+        /*  $triples[] = "$digitalsignal a mo:DigitalSignal"; */
+
+        /*  // different logic depending whether this audiofile is the preferred  */
+        /*  // one or not */
+        /*  if ($key == 0) { */
+        /*      // preferred -- if we have an MBID this Signal is derived from  */
+        /*      // the original (that at Musicbrainz) */
+        /*      if (!is_null($mbid)) */
+        /*          $triples[] = "$digitalsignal mo:derived_from " . mbidToSignalURI($mbid); */
+        /*      // otherwise we don't assert that it derives from anything */
+        /*  } else { */
+        /*      // non-preferred -- we assert that it is derived from our  */
+        /*      // preferred audiofile's Signal */
+        /*      $triples[] = "$digitalsignal mo:derived_from repo:" . $ids[0] . "#DigitalSignal"; */
+        /*  } */
+
+        /*  // analyze the file, get some metadata */
+        /*  $filemetadata = $this->getFileMetadata($fileid); */
+
+        /*  // mo:AudioFile metadata */
+        /*  if (isset($filemetadata["dataformat"])) */
+        /*      $triples[] = "$audiofile mo:encoding \"" . $filemetadata["dataformat"] */
+        /*              . (isset($filemetadata["bitrate"]) ? " @ " . $filemetadata["bitrate"] . "bps" : "") */
+        /*              . (isset($filemetadata["bitrate_mode"]) ? " " . $filemetadata["bitrate_mode"] : "") */
+        /*              . "\""; */
+
+        /*  // mo:DigitalSignal metadata */
+        /*  if (isset($filemetadata["playtime_seconds"])) */
+        /*      $triples[] = "$digitalsignal mo:time [ " */
+        /*              . "a time:Interval; " */
+        /*              . "time:seconds \"" . $filemetadata["playtime_seconds"] . "\"^^xsd:float " */
+        /*              . "]"; */
+        /*  if (isset($filemetadata["channels"])) */
+        /*      $triples[] = "$digitalsignal mo:channels \"" . $filemetadata["channels"] . "\"^^xsd:int"; */
+        /*  if (isset($filemetadata["sample_rate"])) */
+        /*      $triples[] = "$digitalsignal mo:sample_rate \"" . $filemetadata["sample_rate"] . "\"^^xsd:float"; */
+        /* } */
+
+        return $extra_triples;
+
+
+    }
+
+
+    /**
+     * getgetStructuredMetadata
+     * Return as a hashmap (keyed by algorithm the structured audio data
+     * from the "big crunch"
+     */
+    public function getStructuredMetadata($id) {
+
+      $classifier = new StructuredAudioClassifier();
+
+      if ($classifier->available() && $classifier->hasMetadata($id)) {
+        return $classifier->loadMetadata($id);
+      }
+
+      return false;
+
+    }
+
+
+    public function attributionToHtmlByAlgorithm() {
+
+      $classifier = new StructuredAudioClassifier();
+
+      $full_dataset_path = getcwd() . "/" . "datasets";
+
+
+      $ametadata = $classifier->getAttribution();
+
+      $style = "<style>\n";
+      $style .= "  tr:nth-child(even) {background: #DDD}\n";
+      $style .= "  tr:nth-child(odd)  {background: #EEE}\n";
+      $style .= "</style>\n";
+
+      $html_str = "$style\n<table>";
+
+      foreach ($ametadata as $key => $value) {
+
+        $html_str .= "<tr>";
+
+        $entry = $value;
+        $title      = $entry["title"];
+        $year       = $entry["year"];
+        $articleUrl = $entry["articleUrl"];
+        $authorList = $entry["authorList"];
+        $authors    = $entry["authors"];
+  
+        $opt_linked_title = $title;
+
+        if ($articleUrl != false) {
+          $opt_linked_title = "<a href=\"$articleUrl\">$title</a>";
+        }
+
+        $desc_entry = "<i>$opt_linked_title</i> ($year)<br />\n";
+
+        foreach ($authorList as $author) {
+          $author_details = $authors[$author];
+          $organizations  = $author_details["organization"];
+          $email          = $author_details["email"];
+
+          $desc_entry .= $author;
+          if ($email != false) {
+        $email = str_replace("@"," at ",$email);
+        $desc_entry .= " (<tt>$email</tt>)";
+          }
+
+          $desc_entry .= "<br />\n";
+        }
+
+        $tarfilesize = filesize("$full_dataset_path/$key.tar.gz");
+
+        $download_key = "<a href=\"datasets/$key.tar.gz\">Download $key</a> ($tarfilesize bytes)"; 
+        $html_str .= "  <td>$download_key</td><td>$desc_entry</td>\n";
+
+        $html_str .= "</tr>\n";
+
+      }
+      $html_str .= "</table>";
+
+      return $html_str;
+
+    }
+
+
+    public function attributionToHtmlByCollection() {
+
+##    $classifier = new StructuredAudioClassifier();
+
+      $full_dataset_path = getcwd() . "/" . "datasets";
+
+
+      $cmetadata = array (
+                  "american"  => "American",
+                  "classical" => "Classical",
+                  "coversong" => "Cover Songs",
+                  "dram"      => "Dram",
+                  "ehmann"    => "Ehmann",
+                  "jamendo"   => "Jameno",
+                  "latin"     => "Latin",
+                  "magnatune" => "Magnatune",
+                  "mazurkas"  => "Mazurkas",
+                  "uscrap"    => "US Bargin Bin",
+                  "uspop"     => "US Pop"
+                  );
+
+      $style = "<style>\n";
+      $style .= "  tr:nth-child(even) {background: #DDD}\n";
+      $style .= "  tr:nth-child(odd)  {background: #EEE}\n";
+      $style .= "</style>\n";
+
+      $html_str = "$style\n<table>";
+
+      foreach ($cmetadata as $key => $value) {
+
+        $html_str .= "<tr>";
+
+        $tarfilesize = filesize("$full_dataset_path/$key.tar.gz");
+
+        $download_key = "<a href=\"datasets/$key.tar.gz\">Download $value</a> ($tarfilesize bytes)"; 
+        $html_str .= "  <td>$download_key</td>\n";
+
+        $html_str .= "</tr>\n";
+
+      }
+      $html_str .= "</table>";
+
+      return $html_str;
+
+    }
+
+
 }