Changeset 28351 for gs2-extensions


Ignore:
Timestamp:
10/03/13 01:07:37 (7 years ago)
Author:
davidb
Message:

Added in ability to generate download page

File:
1 edited

Legend:

Unmodified
Added
Removed
  • gs2-extensions/afrepo/trunk/src/src/AFRepo.GSDLEXT.class.php.in

    r27983 r28351  
    5858
    5959
    60     protected function remove_audio_files_prefix($full_filepath) {
     60    public function remove_audio_files_prefix($full_filepath) {
    6161#     echo "full filepath = " . $full_filepath . "\n";
    6262#     echo "af prefix = " . $this->af_prefix . "\n";
     
    285285        return null;
    286286    }
     287
     288
     289
     290
     291    /**
     292     * extraTriples
     293     * Return an array of any extra implementation-specific triples should be
     294     * added to the RDF given the ID of an audiofile
     295     *
     296     * This should be an array of triples in Turtle format without the trailing
     297     * dot. (See generateRDF)
     298     * It should return triples about all audiofiles of the same song rather
     299     * than just the one with the ID given.
     300     */
     301    protected function extraTriples($id) {
     302
     303        $extra_triples = array();
     304
     305
     306        // analyze the file, get some metadata
     307        $structured_metadata = $this->getStructuredMetadata($id);
     308
     309        if ($structured_metadata !== false) {
     310
     311        }
     312
     313        // loop through the audiofiles for this tune
     314        /* foreach ($ids as $key => $fileid) { */
     315
     316        /*  // some identifiers */
     317        /*  $audiofile = "repo:$fileid"; */
     318        /*  $digitalsignal = "repo:$fileid#DigitalSignal"; */
     319
     320        /*  // triples about the document */
     321        /*  $triples[] = "{$audiofile}_ a foaf:Document; foaf:primaryTopic $audiofile"; */
     322
     323        /*  // this is a mo:AudioFile, which is a mo:MusicalItem */
     324        /*  $triples[] = "$audiofile a mo:AudioFile"; */
     325
     326        /*  // this encodes a corresponding digital signal */
     327        /*  $triples[] = "$audiofile mo:encodes $digitalsignal"; */
     328
     329        /*  // our digital signal is a mo:DigitalSignal (which is a subclass of  */
     330        /*  // mo:Signal, which is a subclass of mo:MusicalExpression) */
     331        /*  $triples[] = "$digitalsignal a mo:DigitalSignal"; */
     332
     333        /*  // different logic depending whether this audiofile is the preferred  */
     334        /*  // one or not */
     335        /*  if ($key == 0) { */
     336        /*      // preferred -- if we have an MBID this Signal is derived from  */
     337        /*      // the original (that at Musicbrainz) */
     338        /*      if (!is_null($mbid)) */
     339        /*          $triples[] = "$digitalsignal mo:derived_from " . mbidToSignalURI($mbid); */
     340        /*      // otherwise we don't assert that it derives from anything */
     341        /*  } else { */
     342        /*      // non-preferred -- we assert that it is derived from our  */
     343        /*      // preferred audiofile's Signal */
     344        /*      $triples[] = "$digitalsignal mo:derived_from repo:" . $ids[0] . "#DigitalSignal"; */
     345        /*  } */
     346
     347        /*  // analyze the file, get some metadata */
     348        /*  $filemetadata = $this->getFileMetadata($fileid); */
     349
     350        /*  // mo:AudioFile metadata */
     351        /*  if (isset($filemetadata["dataformat"])) */
     352        /*      $triples[] = "$audiofile mo:encoding \"" . $filemetadata["dataformat"] */
     353        /*              . (isset($filemetadata["bitrate"]) ? " @ " . $filemetadata["bitrate"] . "bps" : "") */
     354        /*              . (isset($filemetadata["bitrate_mode"]) ? " " . $filemetadata["bitrate_mode"] : "") */
     355        /*              . "\""; */
     356
     357        /*  // mo:DigitalSignal metadata */
     358        /*  if (isset($filemetadata["playtime_seconds"])) */
     359        /*      $triples[] = "$digitalsignal mo:time [ " */
     360        /*              . "a time:Interval; " */
     361        /*              . "time:seconds \"" . $filemetadata["playtime_seconds"] . "\"^^xsd:float " */
     362        /*              . "]"; */
     363        /*  if (isset($filemetadata["channels"])) */
     364        /*      $triples[] = "$digitalsignal mo:channels \"" . $filemetadata["channels"] . "\"^^xsd:int"; */
     365        /*  if (isset($filemetadata["sample_rate"])) */
     366        /*      $triples[] = "$digitalsignal mo:sample_rate \"" . $filemetadata["sample_rate"] . "\"^^xsd:float"; */
     367        /* } */
     368
     369        return $extra_triples;
     370
     371
     372    }
     373
     374
     375    /**
     376     * getgetStructuredMetadata
     377     * Return as a hashmap (keyed by algorithm the structured audio data
     378     * from the "big crunch"
     379     */
     380    public function getStructuredMetadata($id) {
     381
     382      $classifier = new StructuredAudioClassifier();
     383
     384      if ($classifier->available() && $classifier->hasMetadata($id)) {
     385        return $classifier->loadMetadata($id);
     386      }
     387
     388      return false;
     389
     390    }
     391
     392
     393    public function attributionToHtmlByAlgorithm() {
     394
     395      $classifier = new StructuredAudioClassifier();
     396
     397      $full_dataset_path = getcwd() . "/" . "datasets";
     398
     399
     400      $ametadata = $classifier->getAttribution();
     401
     402      $style = "<style>\n";
     403      $style .= "  tr:nth-child(even) {background: #DDD}\n";
     404      $style .= "  tr:nth-child(odd)  {background: #EEE}\n";
     405      $style .= "</style>\n";
     406
     407      $html_str = "$style\n<table>";
     408
     409      foreach ($ametadata as $key => $value) {
     410
     411        $html_str .= "<tr>";
     412
     413        $entry = $value;
     414        $title      = $entry["title"];
     415        $year       = $entry["year"];
     416        $articleUrl = $entry["articleUrl"];
     417        $authorList = $entry["authorList"];
     418        $authors    = $entry["authors"];
     419 
     420        $opt_linked_title = $title;
     421
     422        if ($articleUrl != false) {
     423          $opt_linked_title = "<a href=\"$articleUrl\">$title</a>";
     424        }
     425
     426        $desc_entry = "<i>$opt_linked_title</i> ($year)<br />\n";
     427
     428        foreach ($authorList as $author) {
     429          $author_details = $authors[$author];
     430          $organizations  = $author_details["organization"];
     431          $email          = $author_details["email"];
     432
     433          $desc_entry .= $author;
     434          if ($email != false) {
     435        $email = str_replace("@"," at ",$email);
     436        $desc_entry .= " (<tt>$email</tt>)";
     437          }
     438
     439          $desc_entry .= "<br />\n";
     440        }
     441
     442        $tarfilesize = filesize("$full_dataset_path/$key.tar.gz");
     443
     444        $download_key = "<a href=\"datasets/$key.tar.gz\">Download $key</a> ($tarfilesize bytes)";
     445        $html_str .= "  <td>$download_key</td><td>$desc_entry</td>\n";
     446
     447        $html_str .= "</tr>\n";
     448
     449      }
     450      $html_str .= "</table>";
     451
     452      return $html_str;
     453
     454    }
     455
     456
     457    public function attributionToHtmlByCollection() {
     458
     459##    $classifier = new StructuredAudioClassifier();
     460
     461      $full_dataset_path = getcwd() . "/" . "datasets";
     462
     463
     464      $cmetadata = array (
     465                  "american"  => "American",
     466                  "classical" => "Classical",
     467                  "coversong" => "Cover Songs",
     468                  "dram"      => "Dram",
     469                  "ehmann"    => "Ehmann",
     470                  "jamendo"   => "Jameno",
     471                  "latin"     => "Latin",
     472                  "magnatune" => "Magnatune",
     473                  "mazurkas"  => "Mazurkas",
     474                  "uscrap"    => "US Bargin Bin",
     475                  "uspop"     => "US Pop"
     476                  );
     477
     478      $style = "<style>\n";
     479      $style .= "  tr:nth-child(even) {background: #DDD}\n";
     480      $style .= "  tr:nth-child(odd)  {background: #EEE}\n";
     481      $style .= "</style>\n";
     482
     483      $html_str = "$style\n<table>";
     484
     485      foreach ($cmetadata as $key => $value) {
     486
     487        $html_str .= "<tr>";
     488
     489        $tarfilesize = filesize("$full_dataset_path/$key.tar.gz");
     490
     491        $download_key = "<a href=\"datasets/$key.tar.gz\">Download $value</a> ($tarfilesize bytes)";
     492        $html_str .= "  <td>$download_key</td>\n";
     493
     494        $html_str .= "</tr>\n";
     495
     496      }
     497      $html_str .= "</table>";
     498
     499      return $html_str;
     500
     501    }
     502
     503
    287504}
    288505
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