source: extensions/charlies_content/getid3/getid3/module.audio-video.bink.php @ 3544

<?php
/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org>               //
//  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 getid3_bink
{

        function getid3_bink(&$fd, &$ThisFileInfo) {

$ThisFileInfo['error'][] = 'Bink / Smacker files not properly processed by this version of getID3()';

                fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
                $fileTypeID = fread($fd, 3);
                switch ($fileTypeID) {
                        case 'BIK':
                                return $this->ParseBink($fd, $ThisFileInfo);
                                break;

                        case 'SMK':
                                return $this->ParseSmacker($fd, $ThisFileInfo);
                                break;

                        default:
                                $ThisFileInfo['error'][] = 'Expecting "BIK" or "SMK" at offset '.$ThisFileInfo['avdataoffset'].', found "'.$fileTypeID.'"';
                                return false;
                                break;
                }

                return true;

        }

        function ParseBink(&$fd, &$ThisFileInfo) {
                $ThisFileInfo['fileformat']          = 'bink';
                $ThisFileInfo['video']['dataformat'] = 'bink';

                $fileData = 'BIK'.fread($fd, 13);

                $ThisFileInfo['bink']['data_size']   = getid3_lib::LittleEndian2Int(substr($fileData, 4, 4));
                $ThisFileInfo['bink']['frame_count'] = getid3_lib::LittleEndian2Int(substr($fileData, 8, 2));

                if (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) != ($ThisFileInfo['bink']['data_size'] + 8)) {
                        $ThisFileInfo['error'][] = 'Probably truncated file: expecting '.$ThisFileInfo['bink']['data_size'].' bytes, found '.($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']);
                }

                return true;
        }

        function ParseSmacker(&$fd, &$ThisFileInfo) {
                $ThisFileInfo['fileformat']          = 'smacker';
                $ThisFileInfo['video']['dataformat'] = 'smacker';

                return false;
        }

}

?>