public function getMp3($filePath, $analysis = false, $getFramesIndex = false)
{
$getFramesIndex = $analysis ? $getFramesIndex : false;
$fileAnalysis = intval(!empty($analysis)) + intval(!empty($getFramesIndex));
if (!($fileSource = fopen($filePath, 'rb'))) {
return false;
}
$fileSize = filesize($filePath);
$id3v2Handle = HandlerFactory::get('id3v2')->handle($fileSource);
$id3v2 = $id3v2Handle['id3v2'];
$posAudioStart = $id3v2Handle['posAudioStart'];
$id3v1Handle = HandlerFactory::get('id3v1')->handle($fileSource, $fileSize);
$id3v1 = isset($id3v1Handle['tag']) ? $id3v1Handle['tag'] : false;
$posAudioEnd = $id3v1Handle['posAudioEnd'];
$dataHandle = HandlerFactory::get('mp3')->getData($fileSource, $fileSize, $posAudioStart, $posAudioEnd, $id3v2, $fileAnalysis);
$data = $dataHandle['data'];
$audioFrames = $dataHandle['audioFrames'];
$return = array('data' => $data, 'id3v2' => $id3v2, 'id3v1' => $id3v1, 'frames' => $getFramesIndex ? $audioFrames : false, 'posAudioStart' => $posAudioStart, 'posAudioEnd' => $posAudioEnd);
foreach ($return as $variable => $value) {
if ($value === false) {
unset($return[$variable]);
}
}
return $return;
}
public function handle($fileSource)
{
$mp3Handler = HandlerFactory::get('mp3');
$pos_call = ftell($fileSource);
$tag = array();
$tagHeaderData = fread($fileSource, 10);
$tagHeader = unpack('a3identifier/Cversion/Crevision/Cflag/Csize0/Csize1/Csize2/Csize3', $tagHeaderData);
if (!$tagHeader || $tagHeader['identifier'] != 'ID3') {
fseek($fileSource, $pos_call);
return array('posAudioStart' => 0, 'id3v2' => false);
}
$tag['version'] = $tagHeader['version'];
$tag['revision'] = $tagHeader['revision'];
$tagFlag = $mp3Handler->convertFlag($tagHeader['flag']);
$tag['flag'] = array('unsynchronisation' => $tagFlag[0], 'extra' => $tagFlag[1], 'istest' => $tagFlag[2]);
$tagSize = ($tagHeader['size0'] & 0x7f) << 21 | ($tagHeader['size1'] & 0x7f) << 14 | ($tagHeader['size2'] & 0x7f) << 7 | $tagHeader['size3'];
if (($tagSize = intval($tagSize)) < 1) {
return array('posAudioStart' => 0, 'id3v2' => false);
}
$tag['size'] = $tagSize;
$tag['frames'] = array();
$pos_start = ftell($fileSource);
$pos_end = $pos_start + $tagSize - 10;
while (true) {
if (ftell($fileSource) >= $pos_end) {
break;
}
$frameHeaderData = fread($fileSource, 10);
$frameHeader = unpack('a4frameid/Nsize/Cflag0/Cflag1', $frameHeaderData);
if (!$frameHeader || !$frameHeader['frameid']) {
continue;
}
$frameId = $frameHeader['frameid'];
$frameDescription = 'Unknown';
if (Frame::get($frameId)) {
$frameDescription = Frame::get($frameId);
} else {
switch (strtoupper($frameId[0])) {
case 'T':
$frameDescription = 'User defined text information frame';
break;
case 'W':
$frameDescription = 'User defined URL link frame';
break;
}
}
if (($frameSize = $frameHeader['size']) < 1 || ftell($fileSource) + $frameSize > $pos_end) {
continue;
}
$frameFlag = array($mp3Handler->convertFlag($frameHeader['flag0']), $mp3Handler->convertFlag($frameHeader['flag1']));
$frameCharsetData = unpack('c', fread($fileSource, 1));
$frameCharset = '';
switch ($frameCharsetData) {
case 0:
$frameCharset = 'ISO-8859-1';
break;
case 1:
$frameCharset = 'UTF-16';
break;
case 2:
$frameCharset = 'UTF-16BE';
break;
case 3:
$frameCharset = 'UTF-8';
break;
}
if ($frameCharset) {
$frameDataSize = $frameSize - 1;
} else {
$frameDataSize = $frameSize;
fseek($fileSource, ftell($fileSource) - 1);
}
$frameData = unpack("a{$frameDataSize}data", fread($fileSource, $frameDataSize));
$frameData = $frameData['data'];
if ($frameId == 'COMM') {
$frameLang = substr($frameData, 0, 3);
$frameData = substr($frameData, 3 + ($frameData[3] == "" ? 1 : 0));
} else {
$frameLang = '';
}
$frame = array('frameid' => $frameId, 'description' => $frameDescription, 'flag' => array('tag_protect' => $frameFlag[0][0], 'file_protect' => $frameFlag[0][1], 'readonly' => $frameFlag[0][2], 'compressed' => $frameFlag[1][0], 'encrypted' => $frameFlag[1][1], 'group' => $frameFlag[1][2]), 'size' => $frameSize, 'data' => $frameData);
$frameCharset && ($frame['charset'] = $frameCharset);
$frameLang && ($frame['language'] = $frameLang);
$tag['frames'][$frameId][] = $frame;
}
$id3v2 = array();
if ($id3v2) {
if (!isset($id3v2[0])) {
$id3v2 = array($id3v2);
}
$id3v2[] = $tag;
} else {
$id3v2 = $tag;
}
return array('posAudioStart' => $pos_end, 'id3v2' => $id3v2);
}
