diff options
Diffstat (limited to 'includes/jpeg_metadata_tk/PictureInfo.php')
| -rw-r--r-- | includes/jpeg_metadata_tk/PictureInfo.php | 284 |
1 files changed, 0 insertions, 284 deletions
diff --git a/includes/jpeg_metadata_tk/PictureInfo.php b/includes/jpeg_metadata_tk/PictureInfo.php deleted file mode 100644 index 05edd00..0000000 --- a/includes/jpeg_metadata_tk/PictureInfo.php +++ /dev/null @@ -1,284 +0,0 @@ -<?php - -/****************************************************************************** -* -* Filename: PictureInfo.php -* -* Description: Provides functions for reading and writing information to/from -* the 'App 12' Picture Info segment of JPEG format files -* -* Author: Evan Hunter -* -* Date: 23/7/2004 -* -* Project: PHP JPEG Metadata Toolkit -* -* Revision: 1.00 -* -* URL: http://electronics.ozhiker.com -* -* Copyright: Copyright Evan Hunter 2004 -* -* License: This file is part of the PHP JPEG Metadata Toolkit. -* -* The PHP JPEG Metadata Toolkit is free software; you can -* redistribute it and/or modify it under the terms of the -* GNU General Public License as published by the Free Software -* Foundation; either version 2 of the License, or (at your -* option) any later version. -* -* The PHP JPEG Metadata Toolkit is distributed in the hope -* that it will be useful, but WITHOUT ANY WARRANTY; without -* even the implied warranty of MERCHANTABILITY or FITNESS -* FOR A PARTICULAR PURPOSE. See the GNU General Public License -* for more details. -* -* You should have received a copy of the GNU General Public -* License along with the PHP JPEG Metadata Toolkit; if not, -* write to the Free Software Foundation, Inc., 59 Temple -* Place, Suite 330, Boston, MA 02111-1307 USA -* -* If you require a different license for commercial or other -* purposes, please contact the author: evan@ozhiker.com -* -******************************************************************************/ - -include_once 'Unicode.php'; - -/****************************************************************************** -* -* Function: get_jpeg_App12_Pic_Info -* -* Description: Retrieves the Picture Info text information from an App12 -* JPEG segment and returns it as a string. Uses information -* supplied by the get_jpeg_header_data function -* -* Parameters: jpeg_header_data - a JPEG header data array in the same format -* as from get_jpeg_header_data -* -* Returns: App12_Head - The text preceeding the Picture Info (often -* the camera manufacturer's name) -* App12_Text - The Picture Info Text -* FALSE, FALSE - if an APP 12 Picture Info segment could not be found -* -******************************************************************************/ - -function get_jpeg_App12_Pic_Info( $jpeg_header_data ) -{ - // Flag that an APP12 segment has not been found yet - $App12_PI_Location = -1; - - //Cycle through the header segments - for( $i = 0; $i < count( $jpeg_header_data ); $i++ ) - { - // Check if we have found an APP12 header, - if ( strcmp ( $jpeg_header_data[$i]['SegName'], "APP12" ) == 0 ) - { - // Found an APP12 segment - // Check if the APP12 has one of the correct labels (headers) - // for a picture info segment - if ( ( strncmp ( $jpeg_header_data[$i]['SegData'], "[picture info]", 14) == 0 ) || - ( strncmp ( $jpeg_header_data[$i]['SegData'], "\x0a\x09\x09\x09\x09[picture info]", 19) == 0 ) || - ( strncmp ( $jpeg_header_data[$i]['SegData'], "SEIKO EPSON CORP. \00", 20) == 0 ) || - ( strncmp ( $jpeg_header_data[$i]['SegData'], "Agfa Gevaert \x00", 16) == 0 ) || - ( strncmp ( $jpeg_header_data[$i]['SegData'], "SanyoElectricDSC\x00", 17) == 0 ) || - ( strncmp ( substr($jpeg_header_data[$i]['SegData'],1,3), "\x00\x00\x00", 3) == 0 ) || - ( strncmp ( $jpeg_header_data[$i]['SegData'], "Type=", 5) == 0 ) || - ( strncmp ( $jpeg_header_data[$i]['SegData'], "OLYMPUS OPTICAL CO.,LTD.", 24) == 0 ) ) - { - // A Picture Info segment was found, mark this position - $App12_PI_Location = $i; - } - } - } - - // Check if a Picture Info Segment was found - if ( $App12_PI_Location != -1 ) - { - // A picture Info Segment was found - Process it - - // Determine the length of the header if there is one - $head_length = 0; - - if ( strncmp ( $jpeg_header_data[$App12_PI_Location]['SegData'], "App12 Gevaert \x00", 16) == 0 ) - { - $head_length = 16; - } - else if ( strncmp ( $jpeg_header_data[$App12_PI_Location]['SegData'], "OLYMPUS OPTICAL CO.,LTD.", 24) == 0 ) - { - $head_length = 25; - } - else if ( strncmp ( $jpeg_header_data[$App12_PI_Location]['SegData'], "SEIKO EPSON CORP. \00", 20) == 0 ) - { - $head_length = 20; - } - else if ( strncmp ( $jpeg_header_data[$App12_PI_Location]['SegData'], "\x0a\x09\x09\x09\x09[picture info]", 19) == 0 ) - { - $head_length = 5; - } - else if ( strncmp ( substr($jpeg_header_data[$App12_PI_Location]['SegData'],1,3), "\x00\x00\x00", 3) == 0 ) // HP - { - $head_length = 0; - } - else if ( strncmp ( $jpeg_header_data[$App12_PI_Location]['SegData'], "SanyoElectricDSC\x00", 17) == 0 ) - { - $head_length = 17; - } - else - { - $head_length = 0; - } - - // Extract the header and the Picture Info Text from the APP12 segment - $App12_PI_Head = substr( $jpeg_header_data[$App12_PI_Location]['SegData'], 0, $head_length ); - $App12_PI_Text = substr( $jpeg_header_data[$App12_PI_Location]['SegData'], $head_length ); - - - // Return the text which was extracted - - if ( ($pos = strpos ( $App12_PI_Text, "[end]" ) ) !== FALSE ) - { - return array( "Header" => $App12_PI_Head, "Picture Info" => substr( $App12_PI_Text, 0, $pos + 5 ) ); - } - else - { - return array( "Header" => $App12_PI_Head, "Picture Info" => $App12_PI_Text ); - } - } - - // No Picture Info Segment Found - Return False - return array( FALSE, FALSE ); -} - -/****************************************************************************** -* End of Function: get_jpeg_header_data -******************************************************************************/ - - - - - -/****************************************************************************** -* -* Function: put_jpeg_App12_Pic_Info -* -* Description: Writes Picture Info text into an App12 JPEG segment. Uses information -* supplied by the get_jpeg_header_data function. If no App12 exists -* already a new one is created, otherwise it replaces the old one -* -* Parameters: jpeg_header_data - a JPEG header data array in the same format -* as from get_jpeg_header_data -* new_Pic_Info_Text - The Picture Info Text, including any header -* that is required -* -* Returns: jpeg_header_data - the JPEG header array with the new Picture -* info segment inserted -* FALSE - if an error occured -* -******************************************************************************/ - -function put_jpeg_App12_Pic_Info( $jpeg_header_data, $new_Pic_Info_Text ) -{ - - //Cycle through the header segments - for( $i = 0; $i < count( $jpeg_header_data ); $i++ ) - { - // Check if we have found an APP12 header, - if ( strcmp ( $jpeg_header_data[$i][SegName], "APP12" ) == 0 ) - { - // Found an APP12 segment - // Check if the APP12 has one of the correct labels (headers) - // for a picture info segment - if ( ( strncmp ( $jpeg_header_data[$i]['SegData'], "[picture info]", 14) == 0 ) || - ( strncmp ( $jpeg_header_data[$i]['SegData'], "\x0a\x09\x09\x09\x09[picture info]", 19) == 0 ) || - ( strncmp ( $jpeg_header_data[$i]['SegData'], "SEIKO EPSON CORP. \x00", 20) == 0 ) || - ( strncmp ( $jpeg_header_data[$i]['SegData'], "Agfa Gevaert \x00", 16) == 0 ) || - ( strncmp ( $jpeg_header_data[$i]['SegData'], "SanyoElectricDSC\x00", 17) == 0 ) || - ( strncmp ( $jpeg_header_data[$i]['SegData'], "Type=", 5) == 0 ) || - ( strncmp ( $jpeg_header_data[$i]['SegData'], "OLYMPUS OPTICAL CO.,LTD.", 24) == 0 ) ) - { - // Found a preexisting Picture Info segment - Replace it with the new one and return. - $jpeg_header_data[$i][SegData] = $new_Pic_Info_Text; - return $jpeg_header_data; - } - } - } - - // No preexisting Picture Info segment found, insert a new one at the start of the header data. - - // Determine highest position of an APP segment at or below APP12, so we can put the - // new APP12 at this position - - - $highest_APP = -1; - - //Cycle through the header segments - for( $i = 0; $i < count( $jpeg_header_data ); $i++ ) - { - // Check if we have found an APP segment at or below APP12, - if ( ( $jpeg_header_data[$i]['SegType'] >= 0xE0 ) && ( $jpeg_header_data[$i]['SegType'] <= 0xEC ) ) - { - // Found an APP segment at or below APP12 - $highest_APP = $i; - } - } - - // Insert the new Picture Info segment - array_splice($jpeg_header_data, $highest_APP + 1 , 0, array( array( "SegType" => 0xEC, - "SegName" => "APP12", - "SegDesc" => $GLOBALS[ "JPEG_Segment_Descriptions" ][ 0xEC ], - "SegData" => $new_Pic_Info_Text ) ) ); - - return $jpeg_header_data; - - -} - -/****************************************************************************** -* End of Function: put_jpeg_header_data -******************************************************************************/ - - - -/****************************************************************************** -* -* Function: Interpret_App12_Pic_Info_to_HTML -* -* Description: Generates html showing the contents of any JPEG App12 Picture -* Info segment -* -* Parameters: jpeg_header_data - the JPEG header data, as retrieved -* from the get_jpeg_header_data function -* -* Returns: output - the HTML -* -******************************************************************************/ - -function Interpret_App12_Pic_Info_to_HTML( $jpeg_header_data ) -{ - // Create a string to receive the output - $output = ""; - - // read the App12 Picture Info segment - $PI = get_jpeg_App12_Pic_Info( $jpeg_header_data ); - - // Check if the Picture Info segment was valid - if ( $PI !== array(FALSE, FALSE) ) - { - // Picture Info exists - add it to the output - $output .= "<h2 class=\"Picture_Info_Main_Heading\">Picture Info Text</h2>\n"; - $output .= "<p><span class=\"Picture_Info_Caption_Text\">Header: </span><span class=\"Picture_Info_Value_Text\">" . HTML_UTF8_Escape( $PI['Header'] ) . "</span></p>\n"; - $output .= "<p class=\"Picture_Info_Caption_Text\">Picture Info Text:</p><pre class=\"Picture_Info_Value_Text\">" . HTML_UTF8_Escape( $PI['Picture Info'] ) . "</pre>\n"; - } - - // Return the result - return $output; -} - -/****************************************************************************** -* End of Function: Interpret_App12_Pic_Info_to_HTML -******************************************************************************/ - - - -?> |