Implement our own quicktime parser

app/Media/QuickTime/Atoms/moov/trak/mdia/hdlr.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Media\QuickTime\Atoms\moov\trak\mdia;
+
+use App\Media\QuickTime\Atoms\SubAtom;
+
+class hdlr extends SubAtom
+{
+	protected const unpack = [
+		'version'=>['c',1],
+		'flags'=>['a3',3],
+		'ctype'=>['a4',4],
+		'csubtype'=>['a4',4],
+		'cmanufact'=>['a4',4],
+		'cflags'=>['a4',4],
+		'cmask'=>['a4',4],
+	];
+
+	public function __construct(int $offset,int $size,string $filename,?string $data)
+	{
+		parent::__construct($offset,$size,$filename);
+
+		$this->cache = $this->cache();
+		$this->cache['name'] = pascal_string($this->unused_data);
+
+		$this->unused_data = (($x=strlen($this->cache['name'])+1) < strlen($this->unused_data)) ? substr($data,$x) : NULL;
+
+		// For debugging
+		if (FALSE)
+			$this->debug = hex_dump($data ?: $this->data());
+	}
+}