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Diffstat (limited to 'includes/jpeg_metadata_tk/Makernotes/sony.php')
| -rw-r--r-- | includes/jpeg_metadata_tk/Makernotes/sony.php | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/includes/jpeg_metadata_tk/Makernotes/sony.php b/includes/jpeg_metadata_tk/Makernotes/sony.php new file mode 100644 index 0000000..2690d81 --- /dev/null +++ b/includes/jpeg_metadata_tk/Makernotes/sony.php @@ -0,0 +1,244 @@ +<?php + +/****************************************************************************** +* +* Filename: sony.php +* +* Description: Sony Makernote Parser +* Provides functions to decode an Sony EXIF makernote and to interpret +* the resulting array into html. +* +* Sony Makernote Format: +* +* Field Size Description +* ---------------------------------------------------------------- +* Header 12 Bytes "SONY CAM \x00\x00\x00" +* or +* "SONY DSC \x00\x00\x00" +* IFD Data Variable NON-Standard IFD Data using Sony Tags +* IFD has no Next-IFD pointer at end of IFD, +* ---------------------------------------------------------------- +* +* +* Author: Evan Hunter +* +* Date: 30/7/2004 +* +* Project: JPEG Metadata +* +* Revision: 1.00 +* +* URL: http://electronics.ozhiker.com +* +* Copyright: Copyright Evan Hunter 2004 +* This file may be used freely for non-commercial purposes.For +* commercial uses please contact the author: evan@ozhiker.com +* +******************************************************************************/ + + + + +// Add the parser and interpreter functions to the list of Makernote parsers and interpreters. + +$GLOBALS['Makernote_Function_Array']['Read_Makernote_Tag'][] = "get_Sony_Makernote"; +$GLOBALS['Makernote_Function_Array']['get_Makernote_Text_Value'][] = "get_Sony_Text_Value"; +$GLOBALS['Makernote_Function_Array']['Interpret_Makernote_to_HTML'][] = "get_Sony_Makernote_Html"; + + + + + +/****************************************************************************** +* +* Function: get_Sony_Makernote +* +* Description: Decodes the Makernote tag and returns the new tag with the decoded +* information attached. Returns false if this is not a makernote +* that can be processed with this script +* +* Parameters: Makernote_Tag - the element of an EXIF array containing the +* makernote, as returned from get_EXIF_JPEG +* EXIF_Array - the entire EXIF array containing the +* makernote, as returned from get_EXIF_JPEG, in +* case more information is required for decoding +* filehnd - an open file handle for the file containing the +* makernote - does not have to be positioned at the +* start of the makernote +* Make_Field - The contents of the EXIF Make field, to aid +* determining whether this script can decode +* the makernote +* +* +* Returns: Makernote_Tag - the Makernote_Tag from the parameters, but +* modified to contain the decoded information +* FALSE - If this script could not decode the makernote, or if +* an error occured in decoding +* +******************************************************************************/ + +function get_Sony_Makernote( $Makernote_Tag, $EXIF_Array, $filehnd, $Make_Field ) +{ + + // Check if the Make Field contains the word Sony + if ( stristr( $Make_Field, "Sony" ) === FALSE ) + { + // This isn't a Sony makernote + return FALSE; + } + + // Check if the header exists at the start of the Makernote + if ( ( substr( $Makernote_Tag['Data'], 0, 12 ) != "SONY CAM \x00\x00\x00" ) && + ( substr( $Makernote_Tag['Data'], 0, 12 ) != "SONY DSC \x00\x00\x00" ) ) + { + // This isn't a Sony Makernote, abort + return FALSE ; + } + + // Seek to the start of the IFD + fseek($filehnd, $Makernote_Tag['Tiff Offset'] + $Makernote_Tag['Offset'] + 12 ); + + // Read the IFD(s) into an array + + + $Makernote_Tag['Decoded Data'] = read_Multiple_IFDs( $filehnd, $Makernote_Tag['Tiff Offset'], $Makernote_Tag['ByteAlign'], "Sony", FALSE, FALSE ); + + // Save some information into the Tag element to aid interpretation + $Makernote_Tag['Decoded'] = TRUE; + $Makernote_Tag['Makernote Type'] = "Sony"; + $Makernote_Tag['Makernote Tags'] = "sony"; + + + // Return the new tag + return $Makernote_Tag; + + +} + +/****************************************************************************** +* End of Function: get_Sony_Makernote +******************************************************************************/ + + + + + + +/****************************************************************************** +* +* Function: get_Sony_Text_Value +* +* Description: Provides a text value for any tag marked as special for makernotes +* that this script can decode. Returns false if this is not a makernote +* that can be processed with this script +* +* Parameters: Exif_Tag - the element of an the Makernote array containing the +* tag in question, as returned from get_Sony_Makernote +* Tag_Definitions_Name - The name of the Tag Definitions group +* within the global array IFD_Tag_Definitions +* +* +* Returns: output - the text value for the tag +* FALSE - If this script could not decode the makernote, or if +* an error occured in decoding +* +******************************************************************************/ + +function get_Sony_Text_Value( $Exif_Tag, $Tag_Definitions_Name ) +{ + // Check that this tag uses the Sony tags, otherwise it can't be decoded here + if ( $Tag_Definitions_Name == "Sony" ) + { + // No Special Tags yet + return FALSE; + } + + return FALSE; +} + +/****************************************************************************** +* End of Function: get_Sony_Text_Value +******************************************************************************/ + + + + + + +/****************************************************************************** +* +* Function: get_Sony_Makernote_Html +* +* Description: Attempts to interpret a makernote into html. Returns false if +* it is not a makernote that can be processed with this script +* +* Parameters: Makernote_Tag - the element of an EXIF array containing the +* makernote, as returned from get_EXIF_JPEG +* filename - the name of the JPEG file being processed ( used +* by scripts which display embedded thumbnails) +* +* +* Returns: output - the html representing the makernote +* FALSE - If this script could not interpret the makernote, or if +* an error occured in decoding +* +******************************************************************************/ + +function get_Sony_Makernote_Html( $Makernote_tag, $filename ) +{ + + // Check that this tag uses the Sony tags, otherwise it can't be interpreted here + if ( $Makernote_tag['Makernote Type'] != "Sony" ) + { + // Not Sony tags - can't interpret with this function + return FALSE; + } + + // Interpret the IFD and return the HTML + return interpret_IFD( $Makernote_tag['Decoded Data'][0], $filename ); + +} + +/****************************************************************************** +* End of Function: get_Sony_Makernote_Html +******************************************************************************/ + + + + + + + + + + +/****************************************************************************** +* Global Variable: IFD_Tag_Definitions, Sony +* +* Contents: This global variable provides definitions of the known Sony +* Makernote tags, indexed by their tag number. +* +******************************************************************************/ + +$GLOBALS[ "IFD_Tag_Definitions" ]["Sony"] = array( + +0xE00 => array( 'Name' => "Print Image Matching Info", + 'Type' => "PIM" ), + +); + +/****************************************************************************** +* End of Global Variable: IFD_Tag_Definitions, Sony +******************************************************************************/ + + + + + + + + + + + +?> |