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| author | Karl 'vollmerk' Vollmer <vollmer@ampache.org> | 2005-06-09 16:34:40 +0000 |
|---|---|---|
| committer | Karl 'vollmerk' Vollmer <vollmer@ampache.org> | 2005-06-09 16:34:40 +0000 |
| commit | bcad40a05ab2dc2a341a3227e30b96668bce4500 (patch) | |
| tree | 6fca27588d53a1b24705bd2834e9e643bb729bd1 /modules/id3/getid3/module.audio-video.matroska.php | |
| download | ampache-bcad40a05ab2dc2a341a3227e30b96668bce4500.tar.gz ampache-bcad40a05ab2dc2a341a3227e30b96668bce4500.tar.bz2 ampache-bcad40a05ab2dc2a341a3227e30b96668bce4500.zip | |
New Import
Diffstat (limited to 'modules/id3/getid3/module.audio-video.matroska.php')
| -rw-r--r-- | modules/id3/getid3/module.audio-video.matroska.php | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/modules/id3/getid3/module.audio-video.matroska.php b/modules/id3/getid3/module.audio-video.matroska.php new file mode 100644 index 00000000..11ac9290 --- /dev/null +++ b/modules/id3/getid3/module.audio-video.matroska.php @@ -0,0 +1,78 @@ +<?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-video.matriska.php // +// module for analyzing Matroska containers // +// dependencies: NONE // +// /// +///////////////////////////////////////////////////////////////// + + +class getid3_matroska +{ + + function getid3_matroska(&$fd, &$ThisFileInfo) { + + $ThisFileInfo['fileformat'] = 'matroska'; + + fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET); + + //$ThisFileInfo['matroska']['raw']['a'] = $this->EBML2Int(fread($fd, 4)); + + $ThisFileInfo['error'][] = 'Mastroka parsing not enabled in this version of getID3()'; + return false; + + } + + + function EBML2Int($EBMLstring) { + // 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); + } + +} + +?>
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