[4705] | 1 | <?php |
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| 2 | /* |
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| 3 | * --:: JPEG MetaDatas ::------------------------------------------------------- |
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| 4 | * |
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| 5 | * Author : Grum |
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| 6 | * email : grum at piwigo.org |
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| 7 | * website : http://photos.grum.fr |
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| 8 | * |
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| 9 | * << May the Little SpaceFrog be with you ! >> |
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| 10 | * |
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| 11 | * |
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| 12 | * +-----------------------------------------------------------------------+ |
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| 13 | * | JpegMetaData - a PHP based Jpeg Metadata manager | |
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| 14 | * +-----------------------------------------------------------------------+ |
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| 15 | * | Copyright(C) 2010 Grum - http://www.grum.fr | |
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| 16 | * +-----------------------------------------------------------------------+ |
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| 17 | * | This program is free software; you can redistribute it and/or modify | |
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| 18 | * | it under the terms of the GNU General Public License as published by | |
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| 19 | * | the Free Software Foundation | |
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| 20 | * | | |
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| 21 | * | This program is distributed in the hope that it will be useful, but | |
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| 22 | * | WITHOUT ANY WARRANTY; without even the implied warranty of | |
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| 23 | * | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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| 24 | * | General Public License for more details. | |
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| 25 | * | | |
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| 26 | * | You should have received a copy of the GNU General Public License | |
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| 27 | * | along with this program; if not, write to the Free Software | |
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| 28 | * | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
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| 29 | * | USA. | |
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| 30 | * +-----------------------------------------------------------------------+ |
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| 31 | * |
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| 32 | * |
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| 33 | * ----------------------------------------------------------------------------- |
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| 34 | * |
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| 35 | * The CanonReader class is the dedicated to read the specific Canon tags |
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| 36 | * |
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| 37 | * ====> See MakerNotesReader.class.php to know more about the structure <====== |
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| 38 | * |
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| 39 | * ----------------------------------------------------------------------------- |
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| 40 | * |
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| 41 | * .. Notes .. |
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| 42 | * |
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| 43 | * |
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| 44 | * The CanonReader class is derived from the MakerNotesReader class. |
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| 45 | * |
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| 46 | * =====> See MakerNotesReader.class.php to know more about common methods <==== |
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| 47 | * |
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| 48 | * ----------------------------------------------------------------------------- |
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| 49 | */ |
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| 50 | |
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| 51 | |
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| 52 | |
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| 53 | require_once(JPEG_METADATA_DIR."TagDefinitions/CanonTags.class.php"); |
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| 54 | require_once(JPEG_METADATA_DIR."Readers/MakerNotesReader.class.php"); |
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| 55 | |
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| 56 | class CanonReader extends MakerNotesReader |
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| 57 | { |
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[6729] | 58 | protected $schema = Schemas::EXIF; |
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| 59 | |
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[4705] | 60 | /** |
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| 61 | * The constructor needs, like the ancestor, the datas to be parsed |
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| 62 | * |
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| 63 | * Some datas are offset on extra data, and this offset can be (some time) |
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| 64 | * absolute inside the IFD, or relative. So, the offset of the IFD structure |
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| 65 | * is needed |
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| 66 | * |
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| 67 | * The byte order can be different from the TIFF byte order ! |
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| 68 | * |
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| 69 | * The constructor need the maker signature (see the MakerNotesSignatures |
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| 70 | * class for a list of known signatures) |
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| 71 | * |
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| 72 | * @param String $data |
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| 73 | * @param ULong $offset : offset of IFD block in the jpeg file |
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| 74 | * @param String $byteOrder |
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| 75 | * @param String $makerSignature : |
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| 76 | */ |
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| 77 | function __construct($data, $offset, $byteOrder, $makerSignature) |
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| 78 | { |
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| 79 | /* |
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| 80 | * Canon don't have signatures in his maker note, starting directly with |
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| 81 | * the number of entries |
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| 82 | */ |
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| 83 | $this->maker = MAKER_CANON; |
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| 84 | $this->header = ""; |
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| 85 | $this->headerSize = 0; |
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| 86 | |
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| 87 | parent::__construct($data, $offset, $byteOrder); |
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| 88 | } |
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| 89 | |
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[4904] | 90 | function __destruct() |
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| 91 | { |
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| 92 | parent::__destruct(); |
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| 93 | } |
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[4705] | 94 | |
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[4904] | 95 | |
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[4705] | 96 | /** |
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| 97 | * initialize the definition for Pentax exif tags |
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| 98 | */ |
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| 99 | protected function initializeTagDef() |
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| 100 | { |
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| 101 | $this->tagDef = new CanonTags(); |
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| 102 | } |
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| 103 | |
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| 104 | /** |
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| 105 | * skip the IFD header |
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| 106 | */ |
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| 107 | protected function skipHeader($headerSize=0) |
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| 108 | { |
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| 109 | parent::skipHeader($headerSize); |
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| 110 | } |
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| 111 | |
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| 112 | /** |
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| 113 | * this function do the interpretation of specials tags |
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| 114 | * |
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| 115 | * the function return the interpreted value for the tag |
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| 116 | * |
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| 117 | * @param $tagId : the id of the tag |
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| 118 | * @param $values : 'raw' value to be interpreted |
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| 119 | * @param UByte $type : if needed (for IFD structure) the type of data |
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| 120 | * @param ULong $valueOffset : if needed, the offset of data in the jpeg file |
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| 121 | * @return String or Array or DateTime or Integer or Float... |
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| 122 | */ |
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| 123 | protected function processSpecialTag($tagId, $values, $type, $valuesOffset=0) |
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| 124 | { |
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| 125 | switch($tagId) |
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| 126 | { |
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[4935] | 127 | case 0x0001: // "CanonImageType" |
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| 128 | $this->processSubTag0x0001($values); |
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| 129 | $returned=$values; |
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| 130 | break; |
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[4972] | 131 | case 0x0004: // "CanonShotInfo" |
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| 132 | $this->processSubTag0x0004($values); |
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| 133 | $returned=$values; |
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| 134 | break; |
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[4935] | 135 | case 0x0006: // "CanonImageType" |
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| 136 | case 0x0007: // "CanonFirmwareVersion" |
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| 137 | case 0x0009: // "OwnerName" |
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| 138 | case 0x0095: // "LensModel" |
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| 139 | case 0x0096: // "InternalSerialNumber" |
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| 140 | /* |
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| 141 | * null terminated strings |
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| 142 | */ |
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[4972] | 143 | $returned=ConvertData::toStrings($values); |
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[4935] | 144 | break; |
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| 145 | case 0x000c: // "SerialNumber" |
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| 146 | $returned=$values; |
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| 147 | break; |
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[4972] | 148 | case 0x000d: // "CanonCameraInfo" |
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| 149 | $returned=$this->processSubTag0x000d($values); |
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| 150 | break; |
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[4935] | 151 | case 0x0010: // "CanonModelID" |
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| 152 | $tag=$this->tagDef->getTagById(0x0010); |
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| 153 | $returned=$tag['tagValues.special'][sprintf("0x%08x", $values)]; |
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| 154 | unset($tag); |
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| 155 | break; |
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| 156 | case 0x0015: // "SerialNumberFormat" |
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| 157 | $tag=$this->tagDef->getTagById(0x0015); |
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| 158 | $returned=$tag['tagValues.special'][sprintf("0x%08x", $values)]; |
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| 159 | unset($tag); |
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| 160 | break; |
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[4705] | 161 | default: |
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| 162 | $returned="Not yet implemented;".ConvertData::toHexDump($tagId, ByteType::USHORT)." => ".ConvertData::toHexDump($values, $type); |
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| 163 | break; |
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| 164 | } |
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| 165 | return($returned); |
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| 166 | } |
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[4935] | 167 | |
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| 168 | /** |
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| 169 | * this function process the subtag of the 0x0001 "CanonCameraSettings" tag |
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[4972] | 170 | * |
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| 171 | * @param Boolean $add : if set to false, the function return the tag value |
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| 172 | * otherwise the function adds the tag |
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[4935] | 173 | */ |
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[4972] | 174 | protected function processSubTag0x0001($values, $add=true) |
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[4935] | 175 | { |
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| 176 | foreach($values as $key => $val) |
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| 177 | { |
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[4972] | 178 | $tagDef=$this->tagDef->getTagById("0x0001.$key"); |
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[4935] | 179 | |
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| 180 | if(is_array($tagDef)) |
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| 181 | { |
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| 182 | // make a fake IFDEntry |
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[4972] | 183 | $entry=new IfdEntryReader("\xFF\xFF\x00\x00\x00\x00\x00\x00\xFF\x01\x00".chr($key), $this->byteOrder, "", 0, null); |
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[4935] | 184 | |
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[4972] | 185 | $entry->getTag()->setId("0x0001.$key"); |
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[4935] | 186 | $entry->getTag()->setName($tagDef['tagName']); |
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| 187 | $entry->getTag()->setValue($val); |
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| 188 | $entry->getTag()->setKnown(true); |
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| 189 | $entry->getTag()->setImplemented($tagDef['implemented']); |
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| 190 | $entry->getTag()->setTranslatable($tagDef['translatable']); |
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[6729] | 191 | $entry->getTag()->setSchema($this->schema); |
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[4935] | 192 | |
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| 193 | if(array_key_exists('tagValues', $tagDef)) |
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| 194 | { |
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| 195 | if(array_key_exists($val, $tagDef['tagValues'])) |
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| 196 | { |
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[4972] | 197 | $returned=$tagDef['tagValues'][$val]; |
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[4935] | 198 | } |
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| 199 | else |
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| 200 | { |
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[4972] | 201 | $returned="unknown (".$val.")"; |
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[4935] | 202 | } |
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| 203 | } |
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| 204 | else |
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| 205 | { |
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| 206 | switch($key) |
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| 207 | { |
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[4972] | 208 | case 2: // SelfTimer |
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| 209 | if($val==0) |
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| 210 | { |
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| 211 | $returned=Array("Off"); |
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| 212 | } |
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| 213 | else |
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| 214 | { |
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| 215 | $returned=Array((($val & 0xfff) / 10).' s'); |
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| 216 | if($val & 0x4000) |
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| 217 | $returned[]="Custom"; |
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| 218 | } |
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| 219 | break; |
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| 220 | case 22: // LensType |
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| 221 | /* in most case, with one Id we have one lens |
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| 222 | * in some case, with one Id we can have more than one lens |
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| 223 | * in this case, we made a $focal var like : |
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| 224 | * "90 mm" |
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| 225 | * "28-300mm" |
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| 226 | * and try to find a lens with this properties |
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| 227 | */ |
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| 228 | if(array_key_exists($val, $tagDef['tagValues.special'])) |
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| 229 | { |
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| 230 | $lens=$tagDef['tagValues.special'][$val]; |
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| 231 | |
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| 232 | if(is_array($lens)) |
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| 233 | { |
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| 234 | $focalUnit=(array_key_exists(25, $values))?$values[25]:1; |
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[7399] | 235 | $FocalShort=(array_key_exists(24, $values) && ($focalUnit!=0))?$values[24]/$focalUnit:0; |
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| 236 | $FocalLong=(array_key_exists(23, $values) && ($focalUnit!=0))?$values[23]/$focalUnit:0; |
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[4972] | 237 | $focal=(($FocalShort==$FocalLong or $FocalLong==0)?$FocalShort:$FocalShort."-".$FocalLong)."mm"; |
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| 238 | |
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| 239 | foreach($lens as $name) |
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| 240 | { |
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| 241 | if(preg_match("/.*".$focal.".*/i", $name)) |
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| 242 | $returned=$name; |
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| 243 | } |
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| 244 | } |
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| 245 | else |
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| 246 | { |
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| 247 | $returned=$lens; |
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| 248 | } |
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| 249 | } |
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| 250 | else |
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| 251 | { |
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| 252 | $returned=$tagDef['tagValues.special'][0xffff]; |
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| 253 | } |
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| 254 | |
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| 255 | break; |
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| 256 | case 23: // LongFocal |
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| 257 | case 24: // ShortFocal |
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| 258 | /* note : the values seems to be divided by the FocalUnit |
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| 259 | * (subTag #25) |
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| 260 | */ |
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| 261 | if(array_key_exists(25, $values)) |
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| 262 | { |
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| 263 | $focalUnit=$values[25]; |
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| 264 | } |
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| 265 | else |
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| 266 | { |
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| 267 | $focalUnit=1; |
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| 268 | } |
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[5222] | 269 | if($focalUnit==0) $focalUnit=1; |
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[4972] | 270 | |
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| 271 | $returned=ConvertData::toFocalLength($val/$focalUnit); |
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| 272 | break; |
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| 273 | case 25: // FocalUnit |
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| 274 | $returned=$val."/mm"; |
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| 275 | break; |
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| 276 | case 26: // MaxAperture |
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| 277 | case 27: // MinAperture |
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| 278 | $returned=ConvertData::toFNumber(round(exp($this->canonEv($val)*log(2)/2),1)); |
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| 279 | break; |
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| 280 | case 29: // FlashBits |
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| 281 | $returned=Array(); |
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| 282 | foreach($tagDef['tagValues.special'] as $key => $name) |
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| 283 | { |
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| 284 | if(($key & $val) == $key) |
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| 285 | { |
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| 286 | $returned[]=$name; |
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| 287 | } |
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| 288 | } |
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| 289 | break; |
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[4935] | 290 | default: |
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[4972] | 291 | $returned="not yet implemented"; |
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[4935] | 292 | break; |
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| 293 | } |
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| 294 | } |
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| 295 | |
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[4972] | 296 | if($add) |
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| 297 | { |
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| 298 | $entry->getTag()->setLabel($returned); |
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| 299 | $this->entries[]=$entry; |
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| 300 | } |
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| 301 | else |
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| 302 | { |
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| 303 | // only return the value for the asked tag |
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| 304 | unset($entry); |
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| 305 | unset($tagDef); |
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| 306 | return($returned); |
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| 307 | } |
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[4935] | 308 | |
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| 309 | unset($entry); |
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| 310 | } |
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| 311 | unset($tagDef); |
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| 312 | } |
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| 313 | } |
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[4972] | 314 | |
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| 315 | /** |
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| 316 | * this function process the subtag of the 0x0004 "CanonShotInfo" tag |
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| 317 | * |
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| 318 | * @param Boolean $add : if set to false, the function return the tag value |
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| 319 | * otherwise the function adds the tag |
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| 320 | */ |
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| 321 | protected function processSubTag0x0004($values, $add=true) |
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| 322 | { |
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| 323 | foreach($values as $key => $val) |
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| 324 | { |
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| 325 | $tagDef=$this->tagDef->getTagById("0x0004.$key"); |
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| 326 | |
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| 327 | if(is_array($tagDef)) |
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| 328 | { |
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| 329 | // make a fake IFDEntry |
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| 330 | $entry=new IfdEntryReader("\xFF\xFF\x00\x00\x00\x00\x00\x00\xFF\x04\x00".chr($key), $this->byteOrder, "", 0, null); |
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| 331 | |
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| 332 | $entry->getTag()->setId("0x0004.$key"); |
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| 333 | $entry->getTag()->setName($tagDef['tagName']); |
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| 334 | $entry->getTag()->setValue($val); |
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| 335 | $entry->getTag()->setKnown(true); |
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| 336 | $entry->getTag()->setImplemented($tagDef['implemented']); |
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| 337 | $entry->getTag()->setTranslatable($tagDef['translatable']); |
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[6729] | 338 | $entry->getTag()->setSchema($this->schema); |
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[4972] | 339 | |
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| 340 | if(array_key_exists('tagValues', $tagDef)) |
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| 341 | { |
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| 342 | if(array_key_exists($val, $tagDef['tagValues'])) |
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| 343 | { |
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| 344 | $returned=$tagDef['tagValues'][$val]; |
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| 345 | } |
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| 346 | else |
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| 347 | { |
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| 348 | $returned="unknown (".$val.")"; |
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| 349 | } |
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| 350 | } |
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| 351 | else |
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| 352 | { |
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| 353 | switch($key) |
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| 354 | { |
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| 355 | case 1: // AutoISO |
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| 356 | $returned=round(exp($val/32*log(2))*100,0); |
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| 357 | break; |
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| 358 | case 2: // BaseISO |
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| 359 | $returned=exp($this->canonEv($val) * log(2)) * 100 / 32; |
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| 360 | break; |
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| 361 | case 4: // TargetAperture |
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| 362 | case 21: // FNumber |
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| 363 | $returned=ConvertData::toFNumber(round(exp($this->canonEv($val)*log(2)/2), 1)); |
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| 364 | break; |
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| 365 | case 5: // TargetExposureTime |
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| 366 | $returned=ConvertData::toExposureTime(exp(-$this->CanonEv($val)*log(2))); |
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| 367 | break; |
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| 368 | case 6: // ExposureCompensation |
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| 369 | case 15: // FlashExposureComp |
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| 370 | case 17: // AEBBracketValue |
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| 371 | $returned=ConvertData::$this->CanonEv($val); |
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| 372 | break; |
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| 373 | case 9: // SlowShutter |
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| 374 | $returned=$val; |
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| 375 | break; |
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| 376 | case 13: // FlashGuideNumber |
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| 377 | $returned=$val/32; |
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| 378 | break; |
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| 379 | case 23: // MeasuredEV2 |
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| 380 | $returned=$val/8-6; |
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| 381 | break; |
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| 382 | case 24: // BulbDuration |
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| 383 | case 29: // SelfTimer2 |
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| 384 | $returned=$val/10; |
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| 385 | break; |
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| 386 | default: |
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| 387 | $returned="not yet implemented"; |
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| 388 | break; |
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| 389 | } |
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| 390 | } |
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| 391 | |
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| 392 | if($add) |
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| 393 | { |
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| 394 | $entry->getTag()->setLabel($returned); |
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| 395 | $this->entries[]=$entry; |
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| 396 | } |
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| 397 | else |
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| 398 | { |
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| 399 | // only return the value for the asked tag |
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| 400 | unset($entry); |
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| 401 | unset($tagDef); |
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| 402 | return($returned); |
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| 403 | } |
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| 404 | |
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| 405 | unset($entry); |
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| 406 | } |
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| 407 | unset($tagDef); |
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| 408 | } |
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| 409 | } |
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| 410 | |
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| 411 | /** |
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| 412 | * this function process the subtag of the 0x000d "CanonCameraInfo" tag |
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| 413 | * |
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| 414 | * @param Boolean $add : if set to false, the function return the tag value |
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| 415 | * otherwise the function adds the tag |
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| 416 | */ |
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| 417 | protected function processSubTag0x000d($values, $add=true) |
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| 418 | { |
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[5038] | 419 | $name=GlobalTags::getExifMaker(); |
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[4972] | 420 | |
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| 421 | if(preg_match("/\b1DS?$/", $name)) |
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| 422 | { |
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| 423 | |
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| 424 | }/* |
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| 425 | elseif(preg_match("/\b1Ds? Mark II$/", $name)) |
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| 426 | { |
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| 427 | |
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| 428 | } |
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| 429 | elseif(preg_match("/\b1Ds? Mark II N$/", $name)) |
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| 430 | { |
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| 431 | |
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| 432 | } |
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| 433 | elseif(preg_match("/\b1Ds? Mark III$/", $name)) |
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| 434 | { |
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| 435 | |
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| 436 | } |
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| 437 | elseif(preg_match("/EOS 5D$/", $name)) |
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| 438 | { |
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| 439 | |
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| 440 | } |
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| 441 | elseif(preg_match("/EOS 5D Mark II$/", $name)) |
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| 442 | { |
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| 443 | |
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| 444 | } |
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| 445 | elseif(preg_match("/EOS 7D$/", $name)) |
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| 446 | { |
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| 447 | |
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| 448 | }*/ |
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| 449 | elseif(preg_match("/.*\b1D Mark IV/i", $name)) |
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| 450 | { |
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| 451 | $returned=$this->processSubTag0x000d_1DMarkIV($values, $add); |
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| 452 | } |
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| 453 | elseif(preg_match("/.*EOS 40D/i", $name)) |
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| 454 | { |
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| 455 | $returned=$this->processSubTag0x000d_40D($values, $add); |
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| 456 | }/* |
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| 457 | elseif(preg_match("/EOS 50D$/", $name)) |
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| 458 | { |
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| 459 | |
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| 460 | } |
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| 461 | elseif(preg_match("/\b(450D|REBEL XSi|Kiss X2)\b/", $name)) |
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| 462 | { |
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| 463 | |
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| 464 | } |
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| 465 | elseif(preg_match("/\b(500D|REBEL T1i|Kiss X3)\b/", $name)) |
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| 466 | { |
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| 467 | |
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| 468 | } |
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| 469 | elseif(preg_match("/\b(1000D|REBEL XS|Kiss F)\b/", $name)) |
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| 470 | { |
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| 471 | |
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| 472 | } |
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| 473 | elseif(preg_match("/\b1DS?/", $name)) |
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| 474 | { |
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| 475 | |
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| 476 | }*/ |
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| 477 | else |
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| 478 | { |
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| 479 | /* |
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| 480 | * note : powershot are not implemented, in exiftool condition to |
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| 481 | * determine the model are not very understandable |
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| 482 | */ |
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| 483 | $returned="$name is not yet implemented => ".ConvertData::toHexDump($values, ByteType::ASCII); |
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| 484 | } |
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| 485 | return($returned); |
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| 486 | } |
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| 487 | |
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| 488 | /** |
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| 489 | * this function process the subtag of the 0x000d "CanonCameraInfo" tag |
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| 490 | * for the EOS 40D camera |
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| 491 | */ |
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| 492 | protected function processSubTag0x000d_40D($values) |
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| 493 | { |
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| 494 | $tagDef=$this->tagDef->getTagById(0x000d); |
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| 495 | $list=$tagDef['tagValues.special']['40D']; |
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| 496 | $data=new Data($values); |
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| 497 | |
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| 498 | foreach($list as $tagIndex) |
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| 499 | { |
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| 500 | $subTagDef=$this->tagDef->getTagById("0x000d.40D.$tagIndex"); |
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| 501 | |
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| 502 | if(is_array($subTagDef)) |
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| 503 | { |
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| 504 | $val=$this->readDataFromSubTag($data, $subTagDef); |
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| 505 | |
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| 506 | // make a fake IFDEntry |
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| 507 | $entry=new IfdEntryReader("\xFF\xFF\x00\x00\x00\x00\x00\x00\xFF\x0d\x00\x00", $this->byteOrder, "", 0, null); |
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| 508 | |
---|
| 509 | $entry->getTag()->setId("0x000d.40D.$tagIndex"); |
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| 510 | $entry->getTag()->setName($subTagDef['tagName']); |
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| 511 | $entry->getTag()->setValue($val); |
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| 512 | $entry->getTag()->setKnown(true); |
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| 513 | $entry->getTag()->setImplemented($subTagDef['implemented']); |
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| 514 | $entry->getTag()->setTranslatable($subTagDef['translatable']); |
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[6729] | 515 | $entry->getTag()->setSchema($this->schema); |
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[4972] | 516 | |
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| 517 | if(array_key_exists('tagValues', $subTagDef)) |
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| 518 | { |
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| 519 | if(array_key_exists($val, $subTagDef['tagValues'])) |
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| 520 | { |
---|
| 521 | $returned=$subTagDef['tagValues'][$val]; |
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| 522 | } |
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| 523 | else |
---|
| 524 | { |
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| 525 | $returned="unknown (".$val.")"; |
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| 526 | } |
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| 527 | } |
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| 528 | else |
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| 529 | { |
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| 530 | switch($tagIndex) |
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| 531 | { |
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| 532 | case 24: // CameraTemperature |
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| 533 | $returned=($val-128)."°C"; |
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| 534 | break; |
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| 535 | case 29: // FocalLength |
---|
| 536 | $returned=ConvertData::toFocalLength($val); |
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| 537 | break; |
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| 538 | case 111: // WhiteBalance |
---|
| 539 | // same method than the ShotInfo.WhiteBalance tag |
---|
| 540 | $returned=$this->processSubTag0x0004(Array(7 => $val), false); |
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| 541 | break; |
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| 542 | case 214: // LensType |
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| 543 | // same method than the CanonCameraSettings.LensType tag |
---|
| 544 | $FocalShort=$this->readDataFromSubTag($data, $this->tagDef->getTagById("0x000d.40D.216")); |
---|
| 545 | $FocalLong=$this->readDataFromSubTag($data, $this->tagDef->getTagById("0x000d.40D.218")); |
---|
| 546 | |
---|
| 547 | $returned=$this->processSubTag0x0001(Array(22 => $val, 23 => $FocalLong, 24 => $FocalShort), false); |
---|
| 548 | break; |
---|
| 549 | case 216: // ShortFocal |
---|
| 550 | case 218: // LongFocal |
---|
| 551 | $returned=ConvertData::toFocalLength($val); |
---|
| 552 | break; |
---|
| 553 | case 255: // FirmwareVersion |
---|
| 554 | case 2347: // LensModel |
---|
| 555 | $returned=ConvertData::toStrings($val); |
---|
| 556 | break; |
---|
| 557 | default: |
---|
| 558 | $returned="not yet implemented ($tagIndex)"; |
---|
| 559 | break; |
---|
| 560 | } |
---|
| 561 | } |
---|
| 562 | |
---|
| 563 | $entry->getTag()->setLabel($returned); |
---|
| 564 | $this->entries[]=$entry; |
---|
| 565 | |
---|
| 566 | unset($entry); |
---|
| 567 | } |
---|
| 568 | unset($subTagDef); |
---|
| 569 | } |
---|
| 570 | unset($tagDef); |
---|
| 571 | unset($list); |
---|
| 572 | unset($data); |
---|
| 573 | |
---|
| 574 | return("[EOS 40D]"); |
---|
| 575 | } |
---|
| 576 | |
---|
| 577 | /** |
---|
| 578 | * this function process the subtag of the 0x000d "CanonCameraInfo" tag |
---|
| 579 | * for the EOS 1D Mark IV camera |
---|
| 580 | * |
---|
| 581 | */ |
---|
| 582 | protected function processSubTag0x000d_1DMarkIV($values) |
---|
| 583 | { |
---|
| 584 | $tagDef=$this->tagDef->getTagById(0x000d); |
---|
| 585 | $list=$tagDef['tagValues.special']['1DMarkIV']; |
---|
| 586 | $data=new Data($values); |
---|
| 587 | |
---|
| 588 | foreach($list as $tagIndex) |
---|
| 589 | { |
---|
| 590 | $subTagDef=$this->tagDef->getTagById("0x000d.1DMarkIV.$tagIndex"); |
---|
| 591 | |
---|
| 592 | if(is_array($subTagDef)) |
---|
| 593 | { |
---|
| 594 | $val=$this->readDataFromSubTag($data, $subTagDef); |
---|
| 595 | |
---|
| 596 | // make a fake IFDEntry |
---|
| 597 | $entry=new IfdEntryReader("\xFF\xFF\x00\x00\x00\x00\x00\x00\xFF\x0d\x00\x00", $this->byteOrder, "", 0, null); |
---|
| 598 | |
---|
| 599 | $entry->getTag()->setId("0x000d.1DMarkIV.$tagIndex"); |
---|
| 600 | $entry->getTag()->setName($subTagDef['tagName']); |
---|
| 601 | $entry->getTag()->setValue($val); |
---|
| 602 | $entry->getTag()->setKnown(true); |
---|
| 603 | $entry->getTag()->setImplemented($subTagDef['implemented']); |
---|
| 604 | $entry->getTag()->setTranslatable($subTagDef['translatable']); |
---|
[6729] | 605 | $entry->getTag()->setSchema($this->schema); |
---|
[4972] | 606 | |
---|
| 607 | if(array_key_exists('tagValues', $subTagDef)) |
---|
| 608 | { |
---|
| 609 | if(array_key_exists($val, $subTagDef['tagValues'])) |
---|
| 610 | { |
---|
| 611 | $returned=$subTagDef['tagValues'][$val]; |
---|
| 612 | } |
---|
| 613 | else |
---|
| 614 | { |
---|
| 615 | $returned="unknown (".$val.")"; |
---|
| 616 | } |
---|
| 617 | } |
---|
| 618 | else |
---|
| 619 | { |
---|
| 620 | switch($tagIndex) |
---|
| 621 | { |
---|
| 622 | case 25: // CameraTemperature |
---|
| 623 | $returned=($val-128)."°C"; |
---|
| 624 | break; |
---|
| 625 | case 30: // FocalLength |
---|
| 626 | $returned=ConvertData::toFocalLength($val); |
---|
| 627 | break; |
---|
| 628 | default: |
---|
| 629 | $returned="not yet implemented ($tagIndex)"; |
---|
| 630 | break; |
---|
| 631 | } |
---|
| 632 | } |
---|
| 633 | |
---|
| 634 | $entry->getTag()->setLabel($returned); |
---|
| 635 | $this->entries[]=$entry; |
---|
| 636 | |
---|
| 637 | unset($entry); |
---|
| 638 | } |
---|
| 639 | unset($subTagDef); |
---|
| 640 | } |
---|
| 641 | unset($tagDef); |
---|
| 642 | unset($list); |
---|
| 643 | unset($data); |
---|
| 644 | |
---|
| 645 | return("[EOS 1D Mark IV]"); |
---|
| 646 | } |
---|
| 647 | |
---|
| 648 | |
---|
| 649 | |
---|
| 650 | /** |
---|
| 651 | * read datas from a $data object, according to the tag definition |
---|
| 652 | * |
---|
| 653 | * @param Data $data : a Data object |
---|
| 654 | * @param Array $tagDef : the tag definition |
---|
| 655 | */ |
---|
| 656 | protected function readDataFromSubTag($data, $tagDef) |
---|
| 657 | { |
---|
| 658 | if(!array_key_exists('pos', $tagDef)) |
---|
| 659 | return("Invalid tagDef (no 'pos')"); |
---|
| 660 | |
---|
| 661 | $pos=$tagDef['pos']; |
---|
| 662 | |
---|
| 663 | if(array_key_exists('byteOrder', $tagDef)) |
---|
| 664 | { |
---|
| 665 | $data->setByteOrder($tagDef['byteOrder']); |
---|
| 666 | } |
---|
| 667 | else |
---|
| 668 | { |
---|
| 669 | $data->setByteOrder(BYTE_ORDER_LITTLE_ENDIAN); |
---|
| 670 | } |
---|
| 671 | |
---|
| 672 | $returned=""; |
---|
| 673 | switch($tagDef['type']) |
---|
| 674 | { |
---|
| 675 | case ByteType::UNDEFINED: |
---|
| 676 | case ByteType::UNKNOWN : |
---|
| 677 | case ByteType::ASCII: |
---|
| 678 | $nbCar=(array_key_exists('length', $tagDef))?$tagDef['length']:1; |
---|
| 679 | $returned=$data->readASCII($nbCar, $pos); |
---|
| 680 | break; |
---|
| 681 | case ByteType::UBYTE: |
---|
| 682 | $returned=$data->readUByte($pos); |
---|
| 683 | break; |
---|
| 684 | case ByteType::USHORT: |
---|
| 685 | $returned=$data->readUShort($pos); |
---|
| 686 | break; |
---|
| 687 | case ByteType::ULONG: |
---|
| 688 | $returned=$data->readULong($pos); |
---|
| 689 | break; |
---|
| 690 | case ByteType::URATIONAL: |
---|
| 691 | $returned=$data->readURational($pos); |
---|
| 692 | break; |
---|
| 693 | case ByteType::SBYTE: |
---|
| 694 | $returned=$data->readSByte($pos); |
---|
| 695 | break; |
---|
| 696 | case ByteType::SSHORT: |
---|
| 697 | $returned=$data->readSShort($pos); |
---|
| 698 | break; |
---|
| 699 | case ByteType::SLONG: |
---|
| 700 | $returned=$data->readSLong($pos); |
---|
| 701 | break; |
---|
| 702 | case ByteType::SRATIONAL: |
---|
| 703 | $returned=$data->readSRational($pos); |
---|
| 704 | break; |
---|
| 705 | case ByteType::FLOAT: |
---|
| 706 | $returned=""; |
---|
| 707 | break; |
---|
| 708 | case ByteType::DOUBLE: |
---|
| 709 | $returned=""; |
---|
| 710 | break; |
---|
| 711 | } |
---|
| 712 | return($returned); |
---|
| 713 | } |
---|
| 714 | |
---|
| 715 | |
---|
| 716 | /** |
---|
| 717 | * Convert Canon hex-based EV (modulo 0x20) to real number |
---|
| 718 | * 0x00 -> 0 |
---|
| 719 | * 0x0c -> 0.33333 |
---|
| 720 | * 0x10 -> 0.5 |
---|
| 721 | * 0x14 -> 0.66666 |
---|
| 722 | * 0x20 -> 1 ... etc |
---|
| 723 | * |
---|
| 724 | * function from exiftool |
---|
| 725 | * |
---|
| 726 | * @param Integer $value : the canon EV value |
---|
| 727 | * @return Float : the converted value |
---|
| 728 | */ |
---|
| 729 | protected function canonEv($val) |
---|
| 730 | { |
---|
| 731 | //$val=95; |
---|
| 732 | |
---|
| 733 | if($val<0) |
---|
| 734 | { |
---|
| 735 | $val=-$val; |
---|
| 736 | $sign=-1; |
---|
| 737 | } |
---|
| 738 | else |
---|
| 739 | { |
---|
| 740 | $sign=1; |
---|
| 741 | } |
---|
| 742 | $frac = (float) ($val & 0x1f); //$frac = $val % 0x20; |
---|
| 743 | $val -= $frac; // remove fraction |
---|
| 744 | // Convert 1/3 and 2/3 codes |
---|
| 745 | if ($frac == 0x0c) |
---|
| 746 | { |
---|
| 747 | $frac = 0x20 / 3; |
---|
| 748 | } |
---|
| 749 | elseif($frac==0x14) |
---|
| 750 | { |
---|
| 751 | $frac = 0x40 / 3; |
---|
| 752 | } |
---|
| 753 | return($sign * ($val + $frac) / 0x20); |
---|
| 754 | } |
---|
[4705] | 755 | } |
---|
| 756 | |
---|
| 757 | ?> |
---|