mbirth/php-mp3info
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Update Mp3Info.php

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Sergey 2018-04-11 19:38:43 +03:00 committed by GitHub
parent 1f98fd2316
commit 1f083faf60
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1 changed files with 4 additions and 4 deletions
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src/Mp3Info.php
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@ -241,13 +241,13 @@ class Mp3Info {
$pos = ftell($fp);
$headerBytes = $this->readBytes($fp, 4);
// if bytes are null, search for something else 1024 bytes forward
if (array_unique($headerBytes) === [0]) {
// if bytes are null, search for something else 2048 bytes forward
if ($headerBytes[0] !== 0xFF) {
$limit_pos = $pos + 2048;
do {
$pos = ftell($fp);
$bytes = $this->readBytes($fp, 1);
if ($bytes[0] !== 0) {
if ($bytes[0] === 0xFF) {
fseek($fp, $pos);
$headerBytes = $this->readBytes($fp, 4);
break;
@ -255,7 +255,7 @@ class Mp3Info {
} while (ftell($fp) < $limit_pos);
}
if (($headerBytes[0] & 0xFF) != 0xFF || (($headerBytes[1] >> 5) & 0b111) != 0b111) throw new \Exception("At ".$pos."(".dechex($pos).") should be the first frame header!");
if ($headerBytes[0] !== 0xFF || (($headerBytes[1] >> 5) & 0b111) != 0b111) throw new \Exception("At 0x".$pos."(".dechex($pos).") should be the first frame header!");
switch ($headerBytes[1] >> 3 & 0b11) {
case 0b10: $this->codecVersion = self::MPEG_2; break;