getid3_aa
The WordPress Core getid3 aa class.
Defined (1)
The class is defined in the following location(s).
- /lib/getid3/module.audio.aa.php
- class getid3_aa extends getid3_handler
- {
- public function Analyze() {
- $info = &$this->getid3->info;
- $this->fseek($info['avdataoffset']);
- $AAheader = $this->fread(8);
- $magic = "\x57\x90\x75\x36";
- if (substr($AAheader, 4, 4) != $magic) {
- $info['error'][] = 'Expecting "'.getid3_lib::PrintHexBytes($magic).'" at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes(substr($AAheader, 4, 4)).'"';
- return false;
- }
- // shortcut
- $info['aa'] = array();
- $thisfile_aa = &$info['aa'];
- $info['fileformat'] = 'aa';
- $info['audio']['dataformat'] = 'aa';
- $info['error'][] = 'Audible Audiobook (.aa) parsing not enabled in this version of getID3() ['.$this->getid3->version().']';
- return false;
- $info['audio']['bitrate_mode'] = 'cbr'; // is it?
- $thisfile_aa['encoding'] = 'ISO-8859-1';
- $thisfile_aa['filesize'] = getid3_lib::BigEndian2Int(substr($AUheader, 0, 4));
- if ($thisfile_aa['filesize'] > ($info['avdataend'] - $info['avdataoffset'])) {
- $info['warning'][] = 'Possible truncated file - expecting "'.$thisfile_aa['filesize'].'" bytes of data, only found '.($info['avdataend'] - $info['avdataoffset']).' bytes"';
- }
- $info['audio']['bits_per_sample'] = 16; // is it?
- $info['audio']['sample_rate'] = $thisfile_aa['sample_rate'];
- $info['audio']['channels'] = $thisfile_aa['channels'];
- //$info['playtime_seconds'] = 0;
- //$info['audio']['bitrate'] = 0;
- return true;
- }
- }