Bink.php

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<?php
 
namespace GetId3\Module\AudioVideo;
 
use GetId3\Handler\BaseHandler;
use GetId3\Lib\Helper;
 
//  available at http://getid3.sourceforge.net                 //
//            or http://www.getid3.org                         //
// See readme.txt for more details                             //
//                                                             //
// module.audio.bink.php                                       //
// module for analyzing Bink or Smacker audio-video files      //
// dependencies: NONE                                          //
//                                                            ///
 
class Bink extends BaseHandler
{
 
    public function analyze()
    {
        $info = &$this->getid3->info;
 
        $info['error'][] = 'Bink / Smacker files not properly processed by this version of GetId3Core() [' . $this->getid3->version() . ']';
 
        fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
        $fileTypeID = fread($this->getid3->fp, 3);
        switch ($fileTypeID) {
            case 'BIK':
                return $this->ParseBink();
                break;
 
            case 'SMK':
                return $this->ParseSmacker();
                break;
 
            default:
                $info['error'][] = 'Expecting "BIK" or "SMK" at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes($fileTypeID) . '"';
 
                return false;
                break;
        }
 
        return true;
    }
 
    public function ParseBink()
    {
        $info = &$this->getid3->info;
        $info['fileformat'] = 'bink';
        $info['video']['dataformat'] = 'bink';
 
        $fileData = 'BIK' . fread($this->getid3->fp, 13);
 
        $info['bink']['data_size'] = Helper::LittleEndian2Int(substr($fileData,
                                                                                4,
                                                                                4));
        $info['bink']['frame_count'] = Helper::LittleEndian2Int(substr($fileData,
                                                                                  8,
                                                                                  2));
 
        if (($info['avdataend'] - $info['avdataoffset']) != ($info['bink']['data_size'] + 8)) {
            $info['error'][] = 'Probably truncated file: expecting ' . $info['bink']['data_size'] . ' bytes, found ' . ($info['avdataend'] - $info['avdataoffset']);
        }
 
        return true;
    }
 
    public function ParseSmacker()
    {
        $info = &$this->getid3->info;
        $info['fileformat'] = 'smacker';
        $info['video']['dataformat'] = 'smacker';
 
        return true;
    }
}