1 | <?php |
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2 | |
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3 | /****************************************************************************** |
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4 | * |
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5 | * Filename: fujifilm.php |
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6 | * |
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7 | * Description: Fujifilm Makernote Parser |
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8 | * Provides functions to decode an Fujifilm EXIF makernote and to interpret |
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9 | * the resulting array into html. |
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10 | * This Makernote format is also used by one Nikon Camera |
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11 | * |
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12 | * Fujifilm Makernote Format: |
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13 | * |
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14 | * Field Size Description |
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15 | * ---------------------------------------------------------------- |
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16 | * Header 8 Bytes "FUJIFILM" |
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17 | * IFD Offset 4 Bytes Intel Byte aligned offset to IFD from start of Makernote |
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18 | * IFD Data Variable NON-Standard IFD Data using Fujifilm Tags |
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19 | * Offsets are relative to start of makernote |
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20 | * Byte alignment is always Intel |
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21 | * ---------------------------------------------------------------- |
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22 | * |
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23 | * |
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24 | * Author: Evan Hunter |
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25 | * |
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26 | * Date: 30/7/2004 |
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27 | * |
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28 | * Project: JPEG Metadata |
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29 | * |
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30 | * Revision: 1.00 |
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31 | * |
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32 | * URL: http://electronics.ozhiker.com |
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33 | * |
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34 | * Copyright: Copyright " . $auteur . " 2004 |
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35 | * This file may be used freely for non-commercial purposes.For |
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36 | * commercial uses please contact the author: evan@ozhiker.com |
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37 | * |
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38 | ******************************************************************************/ |
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39 | |
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40 | |
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41 | |
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42 | // Add the parser and interpreter functions to the list of Makernote parsers and interpreters. |
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43 | |
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44 | $GLOBALS['Makernote_Function_Array']['Read_Makernote_Tag'][] = "get_Fujifilm_Makernote"; |
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45 | $GLOBALS['Makernote_Function_Array']['get_Makernote_Text_Value'][] = "get_Fujifilm_Text_Value"; |
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46 | $GLOBALS['Makernote_Function_Array']['Interpret_Makernote_to_HTML'][] = "get_Fujifilm_Makernote_Html"; |
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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 | /****************************************************************************** |
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54 | * |
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55 | * Function: get_Fujifilm_Makernote |
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56 | * |
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57 | * Description: Decodes the Makernote tag and returns the new tag with the decoded |
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58 | * information attached. Returns false if this is not a makernote |
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59 | * that can be processed with this script |
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60 | * |
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61 | * Parameters: Makernote_Tag - the element of an EXIF array containing the |
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62 | * makernote, as returned from get_EXIF_JPEG |
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63 | * EXIF_Array - the entire EXIF array containing the |
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64 | * makernote, as returned from get_EXIF_JPEG, in |
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65 | * case more information is required for decoding |
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66 | * filehnd - an open file handle for the file containing the |
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67 | * makernote - does not have to be positioned at the |
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68 | * start of the makernote |
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69 | * Make_Field - The contents of the EXIF Make field, to aid |
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70 | * determining whether this script can decode |
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71 | * the makernote |
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72 | * |
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73 | * |
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74 | * Returns: Makernote_Tag - the Makernote_Tag from the parameters, but |
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75 | * modified to contain the decoded information |
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76 | * FALSE - If this script could not decode the makernote, or if |
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77 | * an error occured in decoding |
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78 | * |
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79 | ******************************************************************************/ |
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80 | |
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81 | function get_Fujifilm_Makernote( $Makernote_Tag, $EXIF_Array, $filehnd, $Make_Field ) |
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82 | { |
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83 | |
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84 | // Check if the Make Field contains the word Fuji or Nikon (One Nikon camera uses this format Makernote) |
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85 | if ( ( stristr( $Make_Field, "Fuji" ) === FALSE ) && |
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86 | ( stristr( $Make_Field, "Nikon" ) === FALSE ) ) |
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87 | { |
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88 | // Couldn't find Fuji or Nikon in the maker name - abort |
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89 | return FALSE; |
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90 | } |
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91 | |
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92 | // Check if the header exists at the start of the Makernote |
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93 | if ( substr( $Makernote_Tag['Data'], 0, 8 ) != "FUJIFILM" ) |
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94 | { |
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95 | // This isn't a Fuji Makernote, abort |
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96 | return FALSE; |
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97 | } |
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98 | |
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99 | // The 4 bytes after the header are the offset to the Fujifilm IFD |
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100 | // Get the offset of the IFD |
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101 | $ifd_offset = hexdec( bin2hex( strrev( substr( $Makernote_Tag['Data'], 8, 4 ) ) ) ); |
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102 | |
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103 | // Seek to the start of the IFD |
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104 | fseek($filehnd, $Makernote_Tag['Tiff Offset'] + $Makernote_Tag['Offset'] + $ifd_offset ); |
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105 | |
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106 | // Fuji Makernotes are always Intel Byte Aligned |
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107 | $Makernote_Tag['ByteAlign'] = "II"; |
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108 | |
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109 | // Read the IFD(s) into an array |
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110 | $Makernote_Tag['Decoded Data'] = read_Multiple_IFDs( $filehnd, $Makernote_Tag['Tiff Offset'] + $Makernote_Tag['Offset'], $Makernote_Tag['ByteAlign'], "Fujifilm" ); |
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111 | |
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112 | // Save some information into the Tag element to aid interpretation |
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113 | $Makernote_Tag['Decoded'] = TRUE; |
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114 | $Makernote_Tag['Makernote Type'] = "Fujifilm"; |
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115 | $Makernote_Tag['Makernote Tags'] = "Fujifilm"; |
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116 | |
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117 | |
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118 | // Return the new tag |
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119 | return $Makernote_Tag; |
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120 | |
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121 | } |
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122 | |
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123 | /****************************************************************************** |
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124 | * End of Function: get_Fujifilm_Makernote |
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125 | ******************************************************************************/ |
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126 | |
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127 | |
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128 | |
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129 | |
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130 | |
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131 | |
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132 | |
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133 | |
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134 | |
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135 | /****************************************************************************** |
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136 | * |
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137 | * Function: get_Fujifilm_Text_Value |
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138 | * |
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139 | * Description: Provides a text value for any tag marked as special for makernotes |
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140 | * that this script can decode. Returns false if this is not a makernote |
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141 | * that can be processed with this script |
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142 | * |
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143 | * Parameters: Exif_Tag - the element of an the Makernote array containing the |
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144 | * tag in question, as returned from get_Fujifilm_Makernote |
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145 | * Tag_Definitions_Name - The name of the Tag Definitions group |
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146 | * within the global array IFD_Tag_Definitions |
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147 | * |
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148 | * |
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149 | * Returns: output - the text value for the tag |
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150 | * FALSE - If this script could not decode the makernote, or if |
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151 | * an error occured in decoding |
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152 | * |
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153 | ******************************************************************************/ |
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154 | |
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155 | function get_Fujifilm_Text_Value( $Exif_Tag, $Tag_Definitions_Name ) |
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156 | { |
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157 | // Check that this tag uses the Fujifilm tag Definitions, otherwise it can't be decoded here |
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158 | if ( $Tag_Definitions_Name == "Fujifilm" ) |
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159 | { |
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160 | // No special Tags at this time |
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161 | return FALSE; |
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162 | } |
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163 | |
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164 | return FALSE; |
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165 | } |
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166 | |
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167 | /****************************************************************************** |
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168 | * End of Function: get_Fujifilm_Text_Value |
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169 | ******************************************************************************/ |
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170 | |
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171 | |
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172 | |
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173 | |
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174 | |
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175 | |
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176 | |
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177 | |
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178 | |
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179 | |
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180 | /****************************************************************************** |
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181 | * |
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182 | * Function: get_Fujifilm_Makernote_Html |
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183 | * |
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184 | * Description: Attempts to interpret a makernote into html. Returns false if |
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185 | * it is not a makernote that can be processed with this script |
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186 | * |
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187 | * Parameters: Makernote_Tag - the element of an EXIF array containing the |
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188 | * makernote, as returned from get_EXIF_JPEG |
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189 | * filename - the name of the JPEG file being processed ( used |
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190 | * by scripts which display embedded thumbnails) |
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191 | * |
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192 | * |
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193 | * Returns: output - the html representing the makernote |
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194 | * FALSE - If this script could not interpret the makernote, or if |
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195 | * an error occured in decoding |
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196 | * |
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197 | ******************************************************************************/ |
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198 | |
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199 | function get_Fujifilm_Makernote_Html( $Makernote_tag, $filename ) |
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200 | { |
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201 | // Check that this tag uses the Fujifilm tags, otherwise it can't be interpreted here |
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202 | if ( $Makernote_tag['Makernote Type'] != "Fujifilm" ) |
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203 | { |
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204 | // Not Fujifilm tags - can't interpret with this function |
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205 | return FALSE; |
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206 | } |
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207 | |
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208 | // Interpret the IFD normally |
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209 | return interpret_IFD( $Makernote_tag['Decoded Data'][0], $filename ); |
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210 | |
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211 | } |
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212 | |
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213 | /****************************************************************************** |
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214 | * End of Function: get_Fujifilm_Makernote_Html |
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215 | ******************************************************************************/ |
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216 | |
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217 | |
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218 | |
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219 | |
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220 | |
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221 | |
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222 | |
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223 | |
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224 | |
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225 | |
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226 | |
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227 | |
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228 | |
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229 | /****************************************************************************** |
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230 | * Global Variable: IFD_Tag_Definitions, Fujifilm |
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231 | * |
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232 | * Contents: This global variable provides definitions of the known Fujifilm |
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233 | * Makernote tags, indexed by their tag number. |
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234 | * |
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235 | ******************************************************************************/ |
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236 | |
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237 | $GLOBALS[ "IFD_Tag_Definitions" ]["Fujifilm"] = array( |
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238 | |
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239 | 0 => array( 'Name' => "Version", |
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240 | 'Type' => "String" ), |
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241 | |
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242 | 4096 => array( 'Name' => "Quality", |
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243 | 'Type' => "String" ), |
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244 | |
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245 | 4097 => array( 'Name' => "Sharpness", |
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246 | 'Type' => "Lookup", |
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247 | 1 => "Softest", |
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248 | 2 => "Soft", |
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249 | 3 => "Normal", |
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250 | 4 => "Hard", |
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251 | 5 => "Hardest" ), |
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252 | |
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253 | 4098 => array( 'Name' => "White Balance", |
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254 | 'Type' => "Lookup", |
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255 | 0 => "Auto", |
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256 | 256 => "Daylight", |
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257 | 512 => "Cloudy", |
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258 | 768 => "DaylightColour-fluorescence", |
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259 | 769 => "DaywhiteColour-fluorescence", |
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260 | 770 => "White-fluorescence", |
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261 | 1024 => "Incandenscense", |
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262 | 3840 => "Custom white balance" ), |
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263 | |
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264 | 4099 => array( 'Name' => "Colour Saturation", |
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265 | 'Type' => "Lookup", |
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266 | 0 => "Normal", |
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267 | 256 => "High", |
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268 | 512 => "Low" ), |
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269 | |
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270 | 4100 => array( 'Name' => "Tone (Contrast)", |
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271 | 'Type' => "Lookup", |
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272 | 0 => "Normal", |
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273 | 256 => "High", |
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274 | 512 => "Low" ), |
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275 | |
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276 | 4112 => array( 'Name' => "Flash Mode", |
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277 | 'Type' => "Lookup", |
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278 | 0 => "Auto", |
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279 | 1 => "On", |
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280 | 2 => "Off", |
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281 | 3 => "Red-eye Reduction" ), |
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282 | |
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283 | 4113 => array( 'Name' => "Flash Strength", |
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284 | 'Type' => "Numeric", |
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285 | 'Units' => "EV" ), |
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286 | |
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287 | 4128 => array( 'Name' => "Macro", |
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288 | 'Type' => "Lookup", |
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289 | 0 => "Off", |
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290 | 1 => "On" ), |
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291 | |
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292 | 4129 => array( 'Name' => "Focus Mode", |
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293 | 'Type' => "Lookup", |
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294 | 0 => "Auto Focus", |
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295 | 1 => "Manual Focus" ), |
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296 | |
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297 | 4144 => array( 'Name' => "Slow Sync", |
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298 | 'Type' => "Lookup", |
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299 | 0 => "Off", |
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300 | 1 => "On" ), |
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301 | |
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302 | 4145 => array( 'Name' => "Picture Mode", |
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303 | 'Type' => "Lookup", |
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304 | 0 => "Auto", |
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305 | 1 => "Portrait Scene", |
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306 | 2 => "Landscape Scene", |
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307 | 4 => "Sports Scene", |
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308 | 5 => "Night Scene", |
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309 | 6 => "Program AE", |
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310 | 256 => "Aperture priority AE", |
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311 | 512 => "Shutter priority AE", |
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312 | 768 => "Manual Exposure" ), |
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313 | |
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314 | 4352 => array( 'Name' => "Continuous taking or auto bracketing mode", |
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315 | 'Type' => "Lookup", |
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316 | 0 => "Off", |
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317 | 1 => "On" ), |
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318 | |
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319 | 4864 => array( 'Name' => "Blur Warning", |
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320 | 'Type' => "Lookup", |
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321 | 0 => "No Blur Warning", |
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322 | 1 => "Blur Warning" ), |
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323 | |
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324 | 4865 => array( 'Name' => "Focus warning", |
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325 | 'Type' => "Lookup", |
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326 | 0 => "Auto Focus Good", |
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327 | 1 => "Out of Focus" ), |
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328 | |
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329 | 4866 => array( 'Name' => "Auto Exposure Warning", |
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330 | 'Type' => "Lookup", |
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331 | 0 => "Auto Exposure Good", |
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332 | 1 => "Over exposure (>1/1000s,F11)" ) |
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333 | |
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334 | ); |
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335 | |
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336 | /****************************************************************************** |
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337 | * End of Global Variable: IFD_Tag_Definitions, Fujifilm |
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338 | ******************************************************************************/ |
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339 | |
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340 | |
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341 | |
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342 | |
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343 | |
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344 | ?> |
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