getID3() by James Heinrich <info@getid3.org> // More...
Public Member Functions | |
| getid3_matroska (&$fd, &$ThisFileInfo) | |
| EBML2Int ($EBMLstring) | |
Detailed Description
getID3() by James Heinrich <info@getid3.org> //
Definition at line 17 of file module.audio-video.matroska.php.
Member Function Documentation
| getid3_matroska::EBML2Int | ( | $ | EBMLstring | ) |
Definition at line 34 of file module.audio-video.matroska.php.
References getid3_lib::BigEndian2Int().
{
// http://matroska.org/specs/
// Element ID coded with an UTF-8 like system:
// 1xxx xxxx - Class A IDs (2^7 -2 possible values) (base 0x8X)
// 01xx xxxx xxxx xxxx - Class B IDs (2^14-2 possible values) (base 0x4X 0xXX)
// 001x xxxx xxxx xxxx xxxx xxxx - Class C IDs (2^21-2 possible values) (base 0x2X 0xXX 0xXX)
// 0001 xxxx xxxx xxxx xxxx xxxx xxxx xxxx - Class D IDs (2^28-2 possible values) (base 0x1X 0xXX 0xXX 0xXX)
// Values with all x at 0 and 1 are reserved (hence the -2).
// Data size, in octets, is also coded with an UTF-8 like system :
// 1xxx xxxx - value 0 to 2^7-2
// 01xx xxxx xxxx xxxx - value 0 to 2^14-2
// 001x xxxx xxxx xxxx xxxx xxxx - value 0 to 2^21-2
// 0001 xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^28-2
// 0000 1xxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^35-2
// 0000 01xx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^42-2
// 0000 001x xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^49-2
// 0000 0001 xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^56-2
if (0x80 & ord($EBMLstring{0})) {
$EBMLstring{0} = chr(ord($EBMLstring{0}) & 0x7F);
} elseif (0x40 & ord($EBMLstring{0})) {
$EBMLstring{0} = chr(ord($EBMLstring{0}) & 0x3F);
} elseif (0x20 & ord($EBMLstring{0})) {
$EBMLstring{0} = chr(ord($EBMLstring{0}) & 0x1F);
} elseif (0x10 & ord($EBMLstring{0})) {
$EBMLstring{0} = chr(ord($EBMLstring{0}) & 0x0F);
} elseif (0x08 & ord($EBMLstring{0})) {
$EBMLstring{0} = chr(ord($EBMLstring{0}) & 0x07);
} elseif (0x04 & ord($EBMLstring{0})) {
$EBMLstring{0} = chr(ord($EBMLstring{0}) & 0x03);
} elseif (0x02 & ord($EBMLstring{0})) {
$EBMLstring{0} = chr(ord($EBMLstring{0}) & 0x01);
} elseif (0x01 & ord($EBMLstring{0})) {
$EBMLstring{0} = chr(ord($EBMLstring{0}) & 0x00);
} else {
return false;
}
return getid3_lib::BigEndian2Int($EBMLstring);
}
Here is the call graph for this function:
| getid3_matroska::getid3_matroska | ( | &$ | fd, | |
| &$ | ThisFileInfo | |||
| ) |
Definition at line 20 of file module.audio-video.matroska.php.
{
$ThisFileInfo['fileformat'] = 'matroska';
fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
//$ThisFileInfo['matroska']['raw']['a'] = $this->EBML2Int(fread($fd, 4));
$ThisFileInfo['error'][] = 'Mastroka parsing not enabled in this version of getID3()';
return false;
}
The documentation for this class was generated from the following file:
- Services/MediaObjects/getid3/getid3/module.audio-video.matroska.php
