vendor/getid3/module.audio.wavpack.php

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

<?php

/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org>               //
//  available at https://github.com/JamesHeinrich/getID3       //
//            or https://www.getid3.org                        //
//            or http://getid3.sourceforge.net                 //
//  see readme.txt for more details                            //
/////////////////////////////////////////////////////////////////
//                                                             //
// module.audio.wavpack.php                                    //
// module for analyzing WavPack v4.0+ Audio files              //
// dependencies: NONE                                          //
//                                                            ///
/////////////////////////////////////////////////////////////////

if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
	exit;
}
class getid3_wavpack extends getid3_handler
{
	/**
	 * @return bool
	 */
	public function Analyze() {
		$info = &$this->getid3->info;

		$this->fseek($info['avdataoffset']);

		while (true) {

			$wavpackheader = $this->fread(32);

			if ($this->ftell() >= $info['avdataend']) {
				break;
			} elseif (feof($this->getid3->fp)) {
				break;
			} elseif (
				isset($info['wavpack']['blockheader']['total_samples']) &&
				isset($info['wavpack']['blockheader']['block_samples']) &&
				($info['wavpack']['blockheader']['total_samples'] > 0) &&
				($info['wavpack']['blockheader']['block_samples'] > 0) &&
				(!isset($info['wavpack']['riff_trailer_size']) || ($info['wavpack']['riff_trailer_size'] <= 0)) &&
				((isset($info['wavpack']['config_flags']['md5_checksum']) && ($info['wavpack']['config_flags']['md5_checksum'] === false)) || !empty($info['md5_data_source']))) {
					break;
			}

			$blockheader_offset = $this->ftell() - 32;
			$blockheader_magic  =                              substr($wavpackheader,  0,  4);
			$blockheader_size   = getid3_lib::LittleEndian2Int(substr($wavpackheader,  4,  4));

			$magic = 'wvpk';
			if ($blockheader_magic != $magic) {
				$this->error('Expecting "'.getid3_lib::PrintHexBytes($magic).'" at offset '.$blockheader_offset.', found "'.getid3_lib::PrintHexBytes($blockheader_magic).'"');
				switch (isset($info['audio']['dataformat']) ? $info['audio']['dataformat'] : '') {
					case 'wavpack':
					case 'wvc':
						break;
					default:
						unset($info['fileformat']);