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sources/apps/media/lib/track.php
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<?php
/**
* @author Victor Dubiniuk
* @copyright 2013 Victor Dubiniuk victor.dubiniuk@gmail.com
*
* This file is licensed under the Affero General Public License version 3 or
* later.
*/
namespace OCA\Media;
interface Extractable {
public function getArtist();
public function getAlbum();
public function getTitle();
public function getTrackNumber();
public function getFileSize();
public function getLength();
}
class Track implements Extractable {
/**
* Path to the track
*/
protected $trackPath;
/**
* Array with raw getid3 data
*/
protected $trackData;
/**
* Preferred tags
*/
protected $tagType = 'id3v2';
/**
* Constructor
*
* @param $trackData array
* @param $trackPath string
*/
public function __construct($trackPath) {
$this->trackPath = $trackPath;
$extractor = new Extractor_GetID3();
$this->trackData = $extractor->extract($trackPath);
}
/**
* Get all tags as array
*
* @param none
* @return array
*/
public function getTags() {
$tags = array(
'artist' => $this->getArtist(),
'album' => $this->getAlbum(),
'title' => $this->getTitle(),
'size' => $this->getFileSize(),
'track' => $this->getTrackNumber(),
'length' => $this->getLength(),
);
return $tags;
}
/**
* Get artist title
*
* @param none
* @return string
*/
public function getArtist() {
$value = $this->getTagValue('artist');
if (is_array($value)) {
$value = $value[0];
}
if (!$value) {
$value = 'Unknown';
}
return stripslashes($value);
}
/**
* Get album title
*
* @param none
* @return string
*/
public function getAlbum(){
$value = $this->getTagValue('album');
if (is_array($value)) {
$value = $value[0];
}
if (!$value) {
$value = 'Unknown';
}
return stripslashes($value);
}
/**
* Get track title
*
* @param none
* @return string
*/
public function getTitle(){
$value = $this->getTagValue('title');
if (is_array($value)) {
$value = $value[0];
}
if (!$value) {
$value = basename($this->trackPath);
}
return stripslashes($value);
}
/**
* Get track number
*
* @param none
* @return int
*/
public function getTrackNumber(){
$value = $this->getTagValue('track');
if (is_array($value)) {
$value = $value[0];
}
if ($value !== false) {
$value = $this->getTagValue('track_number');
if (is_array($value)) {
$value = $value[0];
}
if ($value !== false && preg_match('|\d+/|', $value)) {
$value = preg_replace('|/.*$|', '', $value);
}
}
return (int) $value;
}
/**
* Get file size
*
* @param none
* @return int
*/
public function getFileSize(){
$value = (int) $this->getTagValue('filesize');
return $value;
}
/**
* Get track length in seconds
*
* @param none
* @return int
*/
public function getLength(){
$value = (int) $this->getTagValue('playtime_seconds');
return round($value);
}
/**
* Get tag value by it's name
*
* @param string
* @return string
*/
protected function getTagValue($tagname) {
$value = false;
if ($this->tagType) {
if (isset($this->trackData[$this->tagType]['comments'][$tagname])) {
$value = $this->trackData[$this->tagType]['comments'][$tagname];
}
}
if ($value===false) {
$value = $this->getDefaultTagValue($tagname);
}
return $value;
}
/**
* Get default tag value by it's name
*
* @param string
* @return string
*/
protected function getDefaultTagValue($tagname) {
return (isset($this->trackData['comments'][$tagname]) ? $this->trackData['comments'][$tagname] : false);
}
}
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