9 views 
Syntax Syntax
Parameters Parameters
- $languageid
-
(Required)
Return Return
(string)
Source Source
File: wp-includes/ID3/module.audio-video.quicktime.php
'heading' => (float) $GPS_this_GPRMC['heading'],
);
} else {
$this->warning('Unhandled GPS format in "free" atom at offset '.$gps_pointer['offset']);
}
}
$this->fseek($previous_offset);
} else {
$this->warning('QuickTime atom "'.$atomname.'" is not mod-8 bytes long ('.$atomsize.' bytes) at offset '.$baseoffset);
}
} else {
$this->warning('QuickTime atom "'.$atomname.'" is zero bytes long at offset '.$baseoffset);
}
break;
case 'loci':// 3GP location (El Loco)
$loffset = 0;
$info['quicktime']['comments']['gps_flags'] = array( getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)));
$info['quicktime']['comments']['gps_lang'] = array( getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)));
$info['quicktime']['comments']['gps_location'] = array( $this->LociString(substr($atom_data, 6), $loffset));
$loci_data = substr($atom_data, 6 + $loffset);
$info['quicktime']['comments']['gps_role'] = array( getid3_lib::BigEndian2Int(substr($loci_data, 0, 1)));
$info['quicktime']['comments']['gps_longitude'] = array(getid3_lib::FixedPoint16_16(substr($loci_data, 1, 4)));
$info['quicktime']['comments']['gps_latitude'] = array(getid3_lib::FixedPoint16_16(substr($loci_data, 5, 4)));
$info['quicktime']['comments']['gps_altitude'] = array(getid3_lib::FixedPoint16_16(substr($loci_data, 9, 4)));
$info['quicktime']['comments']['gps_body'] = array( $this->LociString(substr($loci_data, 13 ), $loffset));
$info['quicktime']['comments']['gps_notes'] = array( $this->LociString(substr($loci_data, 13 + $loffset), $loffset));
break;
case 'chpl': // CHaPter List
// https://www.adobe.com/content/dam/Adobe/en/devnet/flv/pdfs/video_file_format_spec_v10.pdf
$chpl_version = getid3_lib::BigEndian2Int(substr($atom_data, 4, 1)); // Expected to be 0
$chpl_flags = getid3_lib::BigEndian2Int(substr($atom_data, 5, 3)); // Reserved, set to 0
$chpl_count = getid3_lib::BigEndian2Int(substr($atom_data, 8, 1));
$chpl_offset = 9;
for ($i = 0; $i < $chpl_count; $i++) {
if (($chpl_offset + 9) >= strlen($atom_data)) {
$this->warning('QuickTime chapter '.$i.' extends beyond end of "chpl" atom');
break;
}
$info['quicktime']['chapters'][$i]['timestamp'] = getid3_lib::BigEndian2Int(substr($atom_data, $chpl_offset, 8)) / 10000000; // timestamps are stored as 100-nanosecond units
$chpl_offset += 8;
$chpl_title_size = getid3_lib::BigEndian2Int(substr($atom_data, $chpl_offset, 1));
$chpl_offset += 1;
$info['quicktime']['chapters'][$i]['title'] = substr($atom_data, $chpl_offset, $chpl_title_size);
$chpl_offset += $chpl_title_size;
}
break;
case 'FIRM': // FIRMware version(?), seen on GoPro Hero4
$info['quicktime']['camera']['firmware'] = $atom_data;
break;
case 'CAME': // FIRMware version(?), seen on GoPro Hero4
$info['quicktime']['camera']['serial_hash'] = unpack('H*', $atom_data);
break;
case 'dscp':
case 'rcif':
// https://www.getid3.org/phpBB3/viewtopic.php?t=1908
if (substr($atom_data, 0, 7) == "\x00\x00\x00\x00\x55\xC4".'{') {
if ($json_decoded = @json_decode(rtrim(substr($atom_data, 6), "\x00"), true)) {
$info['quicktime']['camera'][$atomname] = $json_decoded;
if (($atomname == 'rcif') && isset($info['quicktime']['camera']['rcif']['wxcamera']['rotate'])) {
$info['video']['rotate'] = $info['quicktime']['video']['rotate'] = $info['quicktime']['camera']['rcif']['wxcamera']['rotate'];
}
} else {
$this->warning('Failed to JSON decode atom "'.$atomname.'"');
$atom_structure['data'] = $atom_data;
}
unset($json_decoded);
} else {
$this->warning('Expecting 55 C4 7B at start of atom "'.$atomname.'", found '.getid3_lib::PrintHexBytes(substr($atom_data, 4, 3)).' instead');
$atom_structure['data'] = $atom_data;
}
break;
case 'frea':
// https://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Kodak.html#frea
// may contain "scra" (PreviewImage) and/or "thma" (ThumbnailImage)
$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 4, $atomHierarchy, $ParseAllPossibleAtoms);
break;
case 'tima': // subatom to "frea"
// no idea what this does, the one sample file I've seen has a value of 0x00000027
$atom_structure['data'] = $atom_data;
break;
case 'ver ': // subatom to "frea"
// some kind of version number, the one sample file I've seen has a value of "3.00.073"
$atom_structure['data'] = $atom_data;
break;
case 'thma': // subatom to "frea" -- "ThumbnailImage"
// https://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Kodak.html#frea
if (strlen($atom_data) > 0) {
$info['quicktime']['comments']['picture'][] = array('data'=>$atom_data, 'image_mime'=>'image/jpeg', 'description'=>'ThumbnailImage');
}
break;
case 'scra': // subatom to "frea" -- "PreviewImage"
// https://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Kodak.html#frea
// but the only sample file I've seen has no useful data here
if (strlen($atom_data) > 0) {
$info['quicktime']['comments']['picture'][] = array('data'=>$atom_data, 'image_mime'=>'image/jpeg', 'description'=>'PreviewImage');
}
break;
case 'cdsc': // timed metadata reference
// A QuickTime movie can contain none, one, or several timed metadata tracks. Timed metadata tracks can refer to multiple tracks.
// Metadata tracks are linked to the tracks they describe using a track-reference of type 'cdsc'. The metadata track holds the 'cdsc' track reference.
$atom_structure['track_number'] = getid3_lib::BigEndian2Int($atom_data);
break;
default:
$this->warning('Unknown QuickTime atom type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" ('.trim(getid3_lib::PrintHexBytes($atomname)).'), '.$atomsize.' bytes at offset '.$baseoffset);
$atom_structure['data'] = $atom_data;
break;
}
}
array_pop($atomHierarchy);
return $atom_structure;
}
/**
* @param string $atom_data
* @param int $baseoffset
* @param array $atomHierarchy
* @param bool $ParseAllPossibleAtoms
*
* @return array|false
*/
public function QuicktimeParseContainerAtom($atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {
$atom_structure = false;
$subatomoffset = 0;
$subatomcounter = 0;
if ((strlen($atom_data) == 4) && (getid3_lib::BigEndian2Int($atom_data) == 0x00000000)) {
return false;