summaryrefslogtreecommitdiff
path: root/getid3/module.graphic.tiff.php
diff options
context:
space:
mode:
Diffstat (limited to 'getid3/module.graphic.tiff.php')
-rw-r--r--getid3/module.graphic.tiff.php221
1 files changed, 0 insertions, 221 deletions
diff --git a/getid3/module.graphic.tiff.php b/getid3/module.graphic.tiff.php
deleted file mode 100644
index ae57cd6..0000000
--- a/getid3/module.graphic.tiff.php
+++ /dev/null
@@ -1,221 +0,0 @@
-<?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.archive.tiff.php //
-// module for analyzing TIFF files //
-// dependencies: NONE //
-// ///
-/////////////////////////////////////////////////////////////////
-
-
-class getid3_tiff
-{
-
- function getid3_tiff(&$fd, &$ThisFileInfo) {
-
- fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
- $TIFFheader = fread($fd, 4);
-
- switch (substr($TIFFheader, 0, 2)) {
- case 'II':
- $ThisFileInfo['tiff']['byte_order'] = 'Intel';
- break;
- case 'MM':
- $ThisFileInfo['tiff']['byte_order'] = 'Motorola';
- break;
- default:
- $ThisFileInfo['error'][] = 'Invalid TIFF byte order identifier ('.substr($TIFFheader, 0, 2).') at offset '.$ThisFileInfo['avdataoffset'];
- return false;
- break;
- }
-
- $ThisFileInfo['fileformat'] = 'tiff';
- $ThisFileInfo['video']['dataformat'] = 'tiff';
- $ThisFileInfo['video']['lossless'] = true;
- $ThisFileInfo['tiff']['ifd'] = array();
- $CurrentIFD = array();
-
- $FieldTypeByteLength = array(1=>1, 2=>1, 3=>2, 4=>4, 5=>8);
-
- $nextIFDoffset = $this->TIFFendian2Int(fread($fd, 4), $ThisFileInfo['tiff']['byte_order']);
-
- while ($nextIFDoffset > 0) {
-
- $CurrentIFD['offset'] = $nextIFDoffset;
-
- fseek($fd, $ThisFileInfo['avdataoffset'] + $nextIFDoffset, SEEK_SET);
- $CurrentIFD['fieldcount'] = $this->TIFFendian2Int(fread($fd, 2), $ThisFileInfo['tiff']['byte_order']);
-
- for ($i = 0; $i < $CurrentIFD['fieldcount']; $i++) {
- $CurrentIFD['fields'][$i]['raw']['tag'] = $this->TIFFendian2Int(fread($fd, 2), $ThisFileInfo['tiff']['byte_order']);
- $CurrentIFD['fields'][$i]['raw']['type'] = $this->TIFFendian2Int(fread($fd, 2), $ThisFileInfo['tiff']['byte_order']);
- $CurrentIFD['fields'][$i]['raw']['length'] = $this->TIFFendian2Int(fread($fd, 4), $ThisFileInfo['tiff']['byte_order']);
- $CurrentIFD['fields'][$i]['raw']['offset'] = fread($fd, 4);
-
- switch ($CurrentIFD['fields'][$i]['raw']['type']) {
- case 1: // BYTE An 8-bit unsigned integer.
- if ($CurrentIFD['fields'][$i]['raw']['length'] <= 4) {
- $CurrentIFD['fields'][$i]['value'] = $this->TIFFendian2Int(substr($CurrentIFD['fields'][$i]['raw']['offset'], 0, 1), $ThisFileInfo['tiff']['byte_order']);
- } else {
- $CurrentIFD['fields'][$i]['offset'] = $this->TIFFendian2Int($CurrentIFD['fields'][$i]['raw']['offset'], $ThisFileInfo['tiff']['byte_order']);
- }
- break;
-
- case 2: // ASCII 8-bit bytes that store ASCII codes; the last byte must be null.
- if ($CurrentIFD['fields'][$i]['raw']['length'] <= 4) {
- $CurrentIFD['fields'][$i]['value'] = substr($CurrentIFD['fields'][$i]['raw']['offset'], 3);
- } else {
- $CurrentIFD['fields'][$i]['offset'] = $this->TIFFendian2Int($CurrentIFD['fields'][$i]['raw']['offset'], $ThisFileInfo['tiff']['byte_order']);
- }
- break;
-
- case 3: // SHORT A 16-bit (2-byte) unsigned integer.
- if ($CurrentIFD['fields'][$i]['raw']['length'] <= 2) {
- $CurrentIFD['fields'][$i]['value'] = $this->TIFFendian2Int(substr($CurrentIFD['fields'][$i]['raw']['offset'], 0, 2), $ThisFileInfo['tiff']['byte_order']);
- } else {
- $CurrentIFD['fields'][$i]['offset'] = $this->TIFFendian2Int($CurrentIFD['fields'][$i]['raw']['offset'], $ThisFileInfo['tiff']['byte_order']);
- }
- break;
-
- case 4: // LONG A 32-bit (4-byte) unsigned integer.
- if ($CurrentIFD['fields'][$i]['raw']['length'] <= 1) {
- $CurrentIFD['fields'][$i]['value'] = $this->TIFFendian2Int($CurrentIFD['fields'][$i]['raw']['offset'], $ThisFileInfo['tiff']['byte_order']);
- } else {
- $CurrentIFD['fields'][$i]['offset'] = $this->TIFFendian2Int($CurrentIFD['fields'][$i]['raw']['offset'], $ThisFileInfo['tiff']['byte_order']);
- }
- break;
-
- case 5: // RATIONAL Two LONG_s: the first represents the numerator of a fraction, the second the denominator.
- break;
- }
- }
-
- $ThisFileInfo['tiff']['ifd'][] = $CurrentIFD;
- $CurrentIFD = array();
- $nextIFDoffset = $this->TIFFendian2Int(fread($fd, 4), $ThisFileInfo['tiff']['byte_order']);
-
- }
-
- foreach ($ThisFileInfo['tiff']['ifd'] as $IFDid => $IFDarray) {
- foreach ($IFDarray['fields'] as $key => $fieldarray) {
- switch ($fieldarray['raw']['tag']) {
- case 256: // ImageWidth
- case 257: // ImageLength
- case 258: // BitsPerSample
- case 259: // Compression
- if (!isset($fieldarray['value'])) {
- fseek($fd, $fieldarray['offset'], SEEK_SET);
- $ThisFileInfo['tiff']['ifd'][$IFDid]['fields'][$key]['raw']['data'] = fread($fd, $fieldarray['raw']['length'] * $FieldTypeByteLength[$fieldarray['raw']['type']]);
-
- }
- break;
-
- case 270: // ImageDescription
- case 271: // Make
- case 272: // Model
- case 305: // Software
- case 306: // DateTime
- case 315: // Artist
- case 316: // HostComputer
- if (isset($fieldarray['value'])) {
- $ThisFileInfo['tiff']['ifd'][$IFDid]['fields'][$key]['raw']['data'] = $fieldarray['value'];
- } else {
- fseek($fd, $fieldarray['offset'], SEEK_SET);
- $ThisFileInfo['tiff']['ifd'][$IFDid]['fields'][$key]['raw']['data'] = fread($fd, $fieldarray['raw']['length'] * $FieldTypeByteLength[$fieldarray['raw']['type']]);
-
- }
- break;
- }
- switch ($fieldarray['raw']['tag']) {
- case 256: // ImageWidth
- $ThisFileInfo['video']['resolution_x'] = $fieldarray['value'];
- break;
-
- case 257: // ImageLength
- $ThisFileInfo['video']['resolution_y'] = $fieldarray['value'];
- break;
-
- case 258: // BitsPerSample
- if (isset($fieldarray['value'])) {
- $ThisFileInfo['video']['bits_per_sample'] = $fieldarray['value'];
- } else {
- $ThisFileInfo['video']['bits_per_sample'] = 0;
- for ($i = 0; $i < $fieldarray['raw']['length']; $i++) {
- $ThisFileInfo['video']['bits_per_sample'] += $this->TIFFendian2Int(substr($ThisFileInfo['tiff']['ifd'][$IFDid]['fields'][$key]['raw']['data'], $i * $FieldTypeByteLength[$fieldarray['raw']['type']], $FieldTypeByteLength[$fieldarray['raw']['type']]), $ThisFileInfo['tiff']['byte_order']);
- }
- }
- break;
-
- case 259: // Compression
- $ThisFileInfo['video']['codec'] = $this->TIFFcompressionMethod($fieldarray['value']);
- break;
-
- case 270: // ImageDescription
- case 271: // Make
- case 272: // Model
- case 305: // Software
- case 306: // DateTime
- case 315: // Artist
- case 316: // HostComputer
- @$ThisFileInfo['tiff']['comments'][$this->TIFFcommentName($fieldarray['raw']['tag'])][] = $ThisFileInfo['tiff']['ifd'][$IFDid]['fields'][$key]['raw']['data'];
- break;
-
- default:
- break;
- }
- }
- }
-
- return true;
- }
-
-
- function TIFFendian2Int($bytestring, $byteorder) {
- if ($byteorder == 'Intel') {
- return getid3_lib::LittleEndian2Int($bytestring);
- } elseif ($byteorder == 'Motorola') {
- return getid3_lib::BigEndian2Int($bytestring);
- }
- return false;
- }
-
- function TIFFcompressionMethod($id) {
- static $TIFFcompressionMethod = array();
- if (empty($TIFFcompressionMethod)) {
- $TIFFcompressionMethod = array(
- 1 => 'Uncompressed',
- 2 => 'Huffman',
- 3 => 'Fax - CCITT 3',
- 5 => 'LZW',
- 32773 => 'PackBits',
- );
- }
- return (isset($TIFFcompressionMethod[$id]) ? $TIFFcompressionMethod[$id] : 'unknown/invalid ('.$id.')');
- }
-
- function TIFFcommentName($id) {
- static $TIFFcommentName = array();
- if (empty($TIFFcommentName)) {
- $TIFFcommentName = array(
- 270 => 'imagedescription',
- 271 => 'make',
- 272 => 'model',
- 305 => 'software',
- 306 => 'datetime',
- 315 => 'artist',
- 316 => 'hostcomputer',
- );
- }
- return (isset($TIFFcommentName[$id]) ? $TIFFcommentName[$id] : 'unknown/invalid ('.$id.')');
- }
-
-}
-
-
-?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 16:29:14 +0000