| 1 | #------------------------------------------------------------------------------
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| 2 | # File: HtmlDump.pm
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| 3 | #
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| 4 | # Description: Dump information in hex to HTML page
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| 5 | #
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| 6 | # Revisions: 12/05/2005 - P. Harvey Created
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| 7 | #------------------------------------------------------------------------------
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| 8 |
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| 9 | package Image::ExifTool::HtmlDump;
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| 10 |
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| 11 | use strict;
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| 12 | use vars qw($VERSION);
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| 13 | use Image::ExifTool; # only for FinishTiffDump()
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| 14 | use Image::ExifTool::HTML qw(EscapeHTML);
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| 15 |
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| 16 | $VERSION = '1.39';
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| 17 |
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| 18 | sub DumpTable($$$;$$$$$$);
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| 19 | sub Open($$$;@);
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| 20 | sub Write($@);
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| 21 |
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| 22 | my ($bkgStart, $bkgEnd, @bkgSpan);
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| 23 |
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| 24 | my $htmlHeader1 = <<_END_PART_1_;
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| 25 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
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| 26 | "http://www.w3.org/TR/1998/REC-html40-19980424/loose.dtd">
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| 27 | <html>
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| 28 | <head>
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| 29 | <title>
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| 30 | _END_PART_1_
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| 31 |
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| 32 | # Note: Don't change font-weight style because it can affect line height
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| 33 | my $htmlHeader2 = <<_END_PART_2_;
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| 34 | </title>
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| 35 | <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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| 36 | <style type="text/css">
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| 37 | <!--
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| 38 | /* character style ID's */
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| 39 | .D { color: #000000 } /* default color */
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| 40 | .V { color: #ff0000 } /* duplicate block 1 */
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| 41 | .W { color: #004400 } /* normal block 1 */
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| 42 | .X { color: #ff4488 } /* duplicate block 2 */
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| 43 | .Y { color: #448844 } /* normal block 2 */
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| 44 | .U { color: #cc8844 } /* unused data block */
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| 45 | .H { color: #0000ff } /* highlighted tag name */
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| 46 | .F { color: #aa00dd } /* actual offset differs */
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| 47 | .M { text-decoration: underline } /* maker notes data */
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| 48 | .tt { /* tooltip text */
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| 49 | visibility: hidden;
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| 50 | position: absolute;
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| 51 | white-space: nowrap;
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| 52 | top: 0;
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| 53 | left: 0;
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| 54 | font-family: Verdana, sans-serif;
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| 55 | font-size: .7em;
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| 56 | padding: 2px 4px;
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| 57 | border: 1px solid gray;
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| 58 | z-index: 3;
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| 59 | }
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| 60 | .tb { /* tooltip background */
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| 61 | visibility: hidden;
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| 62 | position: absolute;
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| 63 | background: #ffffdd;
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| 64 | zoom: 1;
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| 65 | -moz-opacity: 0.8;
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| 66 | -khtml-opacity: 0.8;
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| 67 | -ms-filter: 'progid:DXImageTransform.Microsoft.Alpha(Opacity=80)';
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| 68 | filter: alpha(opacity=80);
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| 69 | opacity: 0.8;
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| 70 | z-index: 2;
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| 71 | }
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| 72 | /* table styles */
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| 73 | table.dump {
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| 74 | border-top: 1px solid gray;
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| 75 | border-bottom: 1px solid gray;
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| 76 | }
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| 77 | table.dump td { padding: .2em .3em }
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| 78 | td.c2 {
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| 79 | border-left: 1px solid gray;
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| 80 | border-right: 1px solid gray;
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| 81 | }
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| 82 | pre { margin: 0 }
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| 83 | table { font-size: .9em }
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| 84 | body { color: black; background: white }
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| 85 | -->
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| 86 | </style>
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| 87 | <script language="JavaScript" type="text/JavaScript">
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| 88 | <!-- Begin
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| 89 | // tooltip positioning constants
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| 90 | var TMAR = 4; // top/left margins
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| 91 | var BMAR = 16; // bottom/right margins (scrollbars may overhang inner dimensions)
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| 92 | var XOFF = 10; // x offset from cursor
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| 93 | var YOFF = 40; // y offset
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| 94 | var YMIN = 10; // minimum y offset
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| 95 | var YTOP = 20; // y offset when above cursor
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| 96 | // common variables
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| 97 | var safari1 = navigator.userAgent.indexOf("Safari/312.6") >= 0;
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| 98 | var ie6 = navigator.userAgent.toLowerCase().indexOf('msie 6') >= 0;
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| 99 | var mspan = new Array;
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| 100 | var clicked = 0;
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| 101 | var hlist, tt, tb, firstOutEvt, lastInEvt;
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| 102 |
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| 103 | function GetElementsByClass(classname, tagname) {
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| 104 | var found = new Array();
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| 105 | var list = document.getElementsByTagName(tagname);
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| 106 | var len = list.length;
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| 107 | for (var i=0, j=0; i<len; ++i) {
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| 108 | var classes = list[i].className.split(' ');
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| 109 | for (var k=0; k<classes.length; ++k) {
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| 110 | if (classes[k] == classname) {
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| 111 | found[j++] = list[i];
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| 112 | break;
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| 113 | }
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| 114 | }
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| 115 | }
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| 116 | return found;
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| 117 | }
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| 118 |
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| 119 | // click mouse
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| 120 | function doClick(e)
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| 121 | {
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| 122 | if (!clicked) {
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| 123 | firstOutEvt = lastInEvt = undefined;
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| 124 | high(e, 2);
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| 125 | if (hlist) clicked = 1;
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| 126 | } else {
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| 127 | clicked = 0;
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| 128 | if (firstOutEvt) high(firstOutEvt, 0);
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| 129 | if (lastInEvt) high(lastInEvt, 1);
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| 130 | }
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| 131 | }
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| 132 |
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| 133 | // move tooltip
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| 134 | function move(e)
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| 135 | {
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| 136 | if (!tt) return;
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| 137 | if (ie6 && (tt.style.top == '' || tt.style.top == 0) &&
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| 138 | (tt.style.left == '' || tt.style.left == 0))
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| 139 | {
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| 140 | tt.style.width = tt.offsetWidth + 'px';
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| 141 | tt.style.height = tt.offsetHeight + 'px';
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| 142 | }
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| 143 | var w, h;
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| 144 | // browser inconsistencies make getting window size more complex than it should be,
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| 145 | // and even then we don't know if it is smaller due to scrollbar width
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| 146 | if (typeof(window.innerWidth) == 'number') {
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| 147 | w = window.innerWidth;
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| 148 | h = window.innerHeight;
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| 149 | } else if (document.documentElement && document.documentElement.clientWidth) {
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| 150 | w = document.documentElement.clientWidth;
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| 151 | h = document.documentElement.clientHeight;
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| 152 | } else {
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| 153 | w = document.body.clientWidth;
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| 154 | h = document.body.clientHeight;
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| 155 | }
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| 156 | var x = e.clientX + XOFF;
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| 157 | var y = e.clientY + YOFF;
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| 158 | if (safari1) { // patch for people still using OS X 10.3.9
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| 159 | x -= document.body.scrollLeft + document.documentElement.scrollLeft;
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| 160 | y -= document.body.scrollTop + document.documentElement.scrollTop;
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| 161 | }
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| 162 | var mx = w - BMAR - tt.offsetWidth;
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| 163 | var my = h - BMAR - tt.offsetHeight;
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| 164 | if (y > my + YOFF - YMIN) y = e.clientY - YTOP - tt.offsetHeight;
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| 165 | if (x > mx) x = mx;
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| 166 | if (y > my) y = my;
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| 167 | if (x < TMAR) x = TMAR;
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| 168 | if (y < TMAR) y = TMAR;
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| 169 | x += document.body.scrollLeft + document.documentElement.scrollLeft;
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| 170 | y += document.body.scrollTop + document.documentElement.scrollTop;
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| 171 | tb.style.width = tt.offsetWidth + 'px';
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| 172 | tb.style.height = tt.offsetHeight + 'px';
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| 173 | tt.style.top = tb.style.top = y + 'px';
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| 174 | tt.style.left = tb.style.left = x + 'px';
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| 175 | tt.style.visibility = tb.style.visibility = 'visible';
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| 176 | }
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| 177 |
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| 178 | // highlight/unhighlight text
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| 179 | function high(e,on) {
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| 180 | if (on) {
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| 181 | lastInEvt = e;
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| 182 | } else {
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| 183 | if (!firstOutEvt) firstOutEvt = e;
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| 184 | }
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| 185 | if (clicked) return;
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| 186 | var targ;
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| 187 | if (e.target) targ = e.target;
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| 188 | else if (e.srcElement) targ = e.srcElement;
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| 189 | if (targ.nodeType == 3) targ = targ.parentNode; // defeat Safari bug
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| 190 | if (!targ.name) targ = targ.parentNode; // go up another level if necessary
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| 191 | if (targ.name && document.getElementsByName) {
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| 192 | // un-highlight current objects
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| 193 | if (hlist) {
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| 194 | for (var i=0; i<hlist.length; ++i) {
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| 195 | for (var j=0; j<hlist[i].length; ++j) {
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| 196 | hlist[i][j].style.background = 'transparent';
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| 197 | }
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| 198 | }
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| 199 | hlist = null;
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| 200 | }
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| 201 | if (tt) {
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| 202 | // hide old tooltip
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| 203 | tt.style.visibility = tb.style.visibility = 'hidden';
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| 204 | tt = null;
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| 205 | }
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| 206 | if (on) {
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| 207 | if (targ.name.substring(0,1) == 't') {
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| 208 | // show our tooltip (ID is different than name to avoid confusing IE)
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| 209 | tt = document.getElementById('p' + targ.name.substring(1));
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| 210 | if (tt) {
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| 211 | tb = document.getElementById('tb');
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| 212 | move(e);
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| 213 | }
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| 214 | }
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| 215 | // highlight anchor elements with the same name
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| 216 | hlist = new Array;
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| 217 | hlist.push(document.getElementsByName(targ.name));
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| 218 | // is this an IFD pointer?
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| 219 | var pos = targ.className.indexOf('Offset_');
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| 220 | if (pos > 0) {
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| 221 | // add elements from this IFD to our highlight list
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| 222 | hlist.push(document.getElementsByClassName(targ.className.substr(pos+7)));
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| 223 | }
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| 224 | // use class name to highlight span elements if necessary
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| 225 | for (var i=0; i<mspan.length; ++i) {
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| 226 | if (mspan[i] != targ.name) continue;
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| 227 | // add these span elements to our highlight list
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| 228 | hlist.push(GetElementsByClass(targ.name, 'span'));
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| 229 | break;
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| 230 | }
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| 231 | for (var i=0; i<hlist.length; ++i) {
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| 232 | for (var j=0; j<hlist[i].length; ++j) {
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| 233 | hlist[i][j].style.background = on == 2 ? '#ffbbbb' : '#ffcc99';
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| 234 | }
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| 235 | }
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| 236 | }
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| 237 | }
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| 238 | }
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| 239 | _END_PART_2_
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| 240 |
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| 241 | my $htmlHeader3 = q[
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| 242 | // End --->
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| 243 | </script></head>
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| 244 | <body><noscript><b class=V>-->
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| 245 | Enable JavaScript for active highlighting and information tool tips!
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| 246 | </b></noscript>
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| 247 | <table class=dump cellspacing=0 cellpadding=2>
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| 248 | <tr><td valign='top'><pre>];
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| 249 |
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| 250 | my $preMouse = q(<pre onmouseover="high(event,1)" onmouseout="high(event,0)" onmousemove="move(event)" onmousedown="doClick(event)">);
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| 251 |
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| 252 | #------------------------------------------------------------------------------
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| 253 | # New - create new HtmlDump object
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| 254 | # Inputs: 0) reference to HtmlDump object or HtmlDump class name
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| 255 | sub new
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| 256 | {
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| 257 | local $_;
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| 258 | my $that = shift;
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| 259 | my $class = ref($that) || $that || 'Image::ExifTool::HtmlDump';
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| 260 | return bless { Block => {}, TipNum => 0 }, $class;
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| 261 | }
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| 262 |
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| 263 | #------------------------------------------------------------------------------
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| 264 | # Add information to dump
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| 265 | # Inputs: 0) HTML dump hash ref, 1) absolute offset in file, 2) data size,
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| 266 | # 3) comment string, 4) tool tip (or SAME to use previous tip),
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| 267 | # 5) bit flags (see below), 6) IFD name
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| 268 | # Bits: 0x01 - print at start of line
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| 269 | # 0x02 - print red address
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| 270 | # 0x04 - maker notes data ('M'-class span)
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| 271 | # 0x08 - limit block length
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| 272 | # 0x10 - allow double references
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| 273 | # 0x100 - (reserved)
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| 274 | # Notes: Block will be shown in 'unused' color if comment string begins with '['
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| 275 | sub Add($$$$;$$)
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| 276 | {
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| 277 | my ($self, $start, $size, $msg, $tip, $flag, $ifd) = @_;
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| 278 | my $block = $$self{Block};
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| 279 | $$block{$start} or $$block{$start} = [ ];
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| 280 | my $htip;
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| 281 | if ($tip and $tip eq 'SAME') {
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| 282 | $htip = '';
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| 283 | } else {
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| 284 | # use message as first line of tip, and make bold unless in brackets
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| 285 | $htip = ($msg =~ /^[[(]/) ? $msg : "<b>$msg</b>";
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| 286 | if (defined $tip) {
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| 287 | ($tip = EscapeHTML($tip)) =~ s/\n/<br>/g; # HTML-ize tooltip text
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| 288 | $htip .= '<br>' . $tip;
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| 289 | }
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| 290 | # add size if not already done
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| 291 | $htip .= "<br>($size bytes)" unless $htip =~ /<br>Size:/;
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| 292 | ++$self->{TipNum};
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| 293 | }
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| 294 | push @{$$block{$start}}, [ $size, $msg, $htip, $flag, $self->{TipNum}, $ifd ];
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| 295 | }
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| 296 |
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| 297 | #------------------------------------------------------------------------------
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| 298 | # Print dump information to HTML page
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| 299 | # Inputs: 0) Dump information hash reference, 1) source file RAF reference,
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| 300 | # 2) data pointer, 3) data position, 4) output file or scalar reference,
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| 301 | # 5) limit level (1-3), 6) title
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| 302 | # Returns: non-zero if useful output was generated,
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| 303 | # or -1 on error loading data and "ERROR" is set to offending data name
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| 304 | # Note: The "Error" member may be set externally to print a specific error
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| 305 | # message instead of doing the dump.
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| 306 | sub Print($$;$$$$$)
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| 307 | {
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| 308 | local $_;
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| 309 | my ($self, $raf, $dataPt, $dataPos, $outfile, $level, $title) = @_;
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| 310 | my ($i, $buff, $rtnVal, $limit, $err);
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| 311 | my $block = $$self{Block};
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| 312 | $dataPos = 0 unless $dataPos;
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| 313 | $outfile = \*STDOUT unless ref $outfile;
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| 314 | $title = 'HtmlDump' unless $title;
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| 315 | $level or $level = 0;
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| 316 | my $tell = $raf->Tell();
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| 317 | my $pos = 0;
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| 318 | my $dataEnd = $dataPos + ($dataPt ? length($$dataPt) : 0);
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| 319 | # initialize member variables
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| 320 | $$self{Open} = [];
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| 321 | $$self{Closed} = [];
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| 322 | $$self{TipList} = [];
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| 323 | $$self{MSpanList} = [];
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| 324 | $$self{Cols} = [ '', '', '', '' ]; # text columns
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| 325 | # set dump size limits (limits are 4x smaller if bit 0x08 set in flags)
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| 326 | if ($level <= 1) {
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| 327 | $limit = 1024;
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| 328 | } elsif ($level <= 2) {
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| 329 | $limit = 16384;
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| 330 | } else {
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| 331 | $limit = 256 * 1024 * 1024; # never dump bigger than 256 MB
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| 332 | }
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| 333 | $$self{Limit} = $limit;
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| 334 | # pre-initialize open/closed hashes for all columns
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| 335 | for ($i=0; $i<4; ++$i) {
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| 336 | $self->{Open}->[$i] = { ID => [ ], Element => { } };
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| 337 | $self->{Closed}->[$i] = { ID => [ ], Element => { } };
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| 338 | }
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| 339 | $bkgStart = $bkgEnd = 0;
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| 340 | undef @bkgSpan;
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| 341 | my $index = 0; # initialize tooltip index
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| 342 | my (@names, $wasUnused, @starts);
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| 343 | # only do dump if we didn't have a serious error
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| 344 | @starts = sort { $a <=> $b } keys %$block unless $$self{Error};
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| 345 | for ($i=0; $i<=@starts; ++$i) {
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| 346 | my $start = $starts[$i];
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| 347 | my $parmList;
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| 348 | if (defined $start) {
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| 349 | $parmList = $$block{$start};
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| 350 | } elsif ($bkgEnd and $pos < $bkgEnd and not defined $wasUnused) {
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| 351 | $start = $bkgEnd; # finish last bkg block
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| 352 | } else {
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| 353 | last;
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| 354 | }
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| 355 | my $len = $start - $pos;
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| 356 | if ($len > 0 and not $wasUnused) {
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| 357 | # we have a unused bytes before this data block
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| 358 | --$i; # dump the data block next time around
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| 359 | # split unused data into 2 blocks if it spans end of a bkg block
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| 360 | my ($nextBkgEnd, $bkg);
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| 361 | if (not defined $wasUnused and $bkgEnd) {
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| 362 | foreach $bkg (@bkgSpan) {
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| 363 | next if $pos >= $$bkg{End} + $dataPos or $pos + $len <= $$bkg{End} + $dataPos;
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| 364 | $nextBkgEnd = $$bkg{End} unless $nextBkgEnd and $nextBkgEnd < $$bkg{End};
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| 365 | }
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| 366 | }
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| 367 | if ($nextBkgEnd) {
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| 368 | $start = $pos;
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| 369 | $len = $nextBkgEnd + $dataPos - $pos;
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| 370 | $wasUnused = 0;
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| 371 | } else {
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| 372 | $start = $pos; # dump the unused bytes now
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| 373 | $wasUnused = 1; # avoid re-dumping unused bytes if we get a read error
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| 374 | }
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| 375 | my $str = ($len > 1) ? "unused $len bytes" : 'pad byte';
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| 376 | $parmList = [ [ $len, "[$str]", undef, 0x108 ] ];
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| 377 | } else {
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| 378 | undef $wasUnused;
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| 379 | }
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| 380 | my $parms;
|
|---|
| 381 | foreach $parms (@$parmList) {
|
|---|
| 382 | my ($len, $msg, $tip, $flag, $tipNum, $ifd) = @$parms;
|
|---|
| 383 | next unless $len > 0;
|
|---|
| 384 | $flag = 0 unless defined $flag;
|
|---|
| 385 | # generate same name for all blocks indexed by this tooltip
|
|---|
| 386 | my $name;
|
|---|
| 387 | $name = $names[$tipNum] if defined $tipNum;
|
|---|
| 388 | my $idx = $index;
|
|---|
| 389 | if ($name) {
|
|---|
| 390 | # get index from existing ID
|
|---|
| 391 | $idx = substr($name, 1);
|
|---|
| 392 | } else {
|
|---|
| 393 | $name = "t$index";
|
|---|
| 394 | $names[$tipNum] = $name if defined $tipNum;
|
|---|
| 395 | ++$index;
|
|---|
| 396 | }
|
|---|
| 397 | if ($flag & 0x14) {
|
|---|
| 398 | my $class = $flag & 0x04 ? "$name M" : $name;
|
|---|
| 399 | $class .= " $ifd" if $ifd;
|
|---|
| 400 | my %bkg = (
|
|---|
| 401 | Class => $class,
|
|---|
| 402 | Start => $start - $dataPos,
|
|---|
| 403 | End => $start - $dataPos + $len,
|
|---|
| 404 | );
|
|---|
| 405 | push @bkgSpan, \%bkg;
|
|---|
| 406 | $bkgStart = $bkg{Start} unless $bkgStart and $bkgStart < $bkg{Start};
|
|---|
| 407 | $bkgEnd = $bkg{End} unless $bkgEnd and $bkgEnd > $bkg{End};
|
|---|
| 408 | push @{$self->{MSpanList}}, $name;
|
|---|
| 409 | next;
|
|---|
| 410 | }
|
|---|
| 411 | # loop until we read the value properly
|
|---|
| 412 | my ($end, $try);
|
|---|
| 413 | for ($try=0; $try<2; ++$try) {
|
|---|
| 414 | $end = $start + $len;
|
|---|
| 415 | # only load as much of the block as we are going to dump
|
|---|
| 416 | # (read 32 more bytes than necessary just in case there
|
|---|
| 417 | # is only one skipped line that we decide to print)
|
|---|
| 418 | my $size = ($len > $limit + 32) ? $limit / 2 + 16 : $len;
|
|---|
| 419 | if ($start >= $dataPos and $end <= $dataEnd) {
|
|---|
| 420 | $buff = substr($$dataPt, $start-$dataPos, $size);
|
|---|
| 421 | if ($len != $size) {
|
|---|
| 422 | $buff .= substr($$dataPt, $start-$dataPos+$len-$size, $size);
|
|---|
| 423 | }
|
|---|
| 424 | } else {
|
|---|
| 425 | $buff = '';
|
|---|
| 426 | if ($raf->Seek($start, 0) and $raf->Read($buff, $size) == $size) {
|
|---|
| 427 | # read end of block
|
|---|
| 428 | if ($len != $size) {
|
|---|
| 429 | my $buf2 = '';
|
|---|
| 430 | unless ($raf->Seek($start+$len-$size, 0) and
|
|---|
| 431 | $raf->Read($buf2, $size) == $size)
|
|---|
| 432 | {
|
|---|
| 433 | $err = $msg;
|
|---|
| 434 | # reset $len to the actual length of available data
|
|---|
| 435 | $raf->Seek(0, 2);
|
|---|
| 436 | $len = $raf->Tell() - $start;
|
|---|
| 437 | $tip .= "<br>Error: Only $len bytes available!" if $tip;
|
|---|
| 438 | next;
|
|---|
| 439 | }
|
|---|
| 440 | $buff .= $buf2;
|
|---|
| 441 | undef $buf2;
|
|---|
| 442 | }
|
|---|
| 443 | } else {
|
|---|
| 444 | $err = $msg;
|
|---|
| 445 | $len = length $buff;
|
|---|
| 446 | $tip .= "<br>Error: Only $len bytes available!" if $tip;
|
|---|
| 447 | }
|
|---|
| 448 | }
|
|---|
| 449 | last;
|
|---|
| 450 | }
|
|---|
| 451 | $tip and $self->{TipList}->[$idx] = $tip;
|
|---|
| 452 | next unless length $buff;
|
|---|
| 453 | # set flag to continue this line if next block is contiguous
|
|---|
| 454 | if ($i+1 < @starts and $parms eq $$parmList[-1] and
|
|---|
| 455 | ($end == $starts[$i+1] or ($end < $starts[$i+1] and $end >= $pos)))
|
|---|
| 456 | {
|
|---|
| 457 | my $nextFlag = $block->{$starts[$i+1]}->[0]->[3] || 0;
|
|---|
| 458 | $flag |= 0x100 unless $flag & 0x01 or $nextFlag & 0x01;
|
|---|
| 459 | }
|
|---|
| 460 | $self->DumpTable($start-$dataPos, \$buff, $msg, $name,
|
|---|
| 461 | $flag, $len, $pos-$dataPos, $ifd);
|
|---|
| 462 | undef $buff;
|
|---|
| 463 | $pos = $end if $pos < $end;
|
|---|
| 464 | }
|
|---|
| 465 | }
|
|---|
| 466 | $self->Open('',''); # close all open elements
|
|---|
| 467 | $raf->Seek($tell,0);
|
|---|
| 468 |
|
|---|
| 469 | # write output HTML file
|
|---|
| 470 | Write($outfile, $htmlHeader1, $title);
|
|---|
| 471 | if ($self->{Cols}->[0]) {
|
|---|
| 472 | Write($outfile, $htmlHeader2);
|
|---|
| 473 | my $mspan = \@{$$self{MSpanList}};
|
|---|
| 474 | for ($i=0; $i<@$mspan; ++$i) {
|
|---|
| 475 | Write($outfile, qq(mspan[$i] = "$$mspan[$i]";\n));
|
|---|
| 476 | }
|
|---|
| 477 | Write($outfile, $htmlHeader3, $self->{Cols}->[0]);
|
|---|
| 478 | Write($outfile, '</pre></td><td valign="top">',
|
|---|
| 479 | $preMouse, $self->{Cols}->[1]);
|
|---|
| 480 | Write($outfile, '</pre></td><td class=c2 valign="top">',
|
|---|
| 481 | $preMouse, $self->{Cols}->[2]);
|
|---|
| 482 | Write($outfile, '</pre></td><td valign="top">',
|
|---|
| 483 | $preMouse, $self->{Cols}->[3]);
|
|---|
| 484 | Write($outfile, "</pre></td></tr></table>\n<div id=tb class=tb> </div>\n");
|
|---|
| 485 | my $tips = \@{$$self{TipList}};
|
|---|
| 486 | for ($i=0; $i<@$tips; ++$i) {
|
|---|
| 487 | my $tip = $$tips[$i];
|
|---|
| 488 | Write($outfile, "<div id=p$i class=tt>$tip</div>\n") if defined $tip;
|
|---|
| 489 | }
|
|---|
| 490 | delete $$self{TipList};
|
|---|
| 491 | $rtnVal = 1;
|
|---|
| 492 | } else {
|
|---|
| 493 | my $err = $$self{Error} || 'No EXIF or TIFF information found in image';
|
|---|
| 494 | Write($outfile, "$title</title></head><body>\n$err\n");
|
|---|
| 495 | $rtnVal = 0;
|
|---|
| 496 | }
|
|---|
| 497 | Write($outfile, "</body></html>\n");
|
|---|
| 498 | for ($i=0; $i<4; ++$i) {
|
|---|
| 499 | $self->{Cols}->[$i] = ''; # free memory
|
|---|
| 500 | }
|
|---|
| 501 | if ($err) {
|
|---|
| 502 | $err =~ tr/()//d;
|
|---|
| 503 | $$self{ERROR} = $err;
|
|---|
| 504 | return -1;
|
|---|
| 505 | }
|
|---|
| 506 | return $rtnVal;
|
|---|
| 507 | }
|
|---|
| 508 |
|
|---|
| 509 | #------------------------------------------------------------------------------
|
|---|
| 510 | # Open or close a specified html element
|
|---|
| 511 | # Inputs: 0) HtmlDump object ref, 1) element id, 2) element string,
|
|---|
| 512 | # 3-N) list of column numbers (empty for all columns)
|
|---|
| 513 | # - element id may be '' to close all elements
|
|---|
| 514 | # - element string may be '' to close element by ID (or 0 to close without reopening)
|
|---|
| 515 | # - element id and string may both be 1 to reopen temporarily closed elements
|
|---|
| 516 | sub Open($$$;@)
|
|---|
| 517 | {
|
|---|
| 518 | my ($self, $id, $element, @colNums) = @_;
|
|---|
| 519 |
|
|---|
| 520 | # loop through specified columns
|
|---|
| 521 | @colNums or @colNums = (0 .. $#{$self->{Open}});
|
|---|
| 522 | my $col;
|
|---|
| 523 | foreach $col (@colNums) {
|
|---|
| 524 | # get information about open elements in this column
|
|---|
| 525 | my $opHash = $self->{Open}->[$col];
|
|---|
| 526 | my $opElem = $$opHash{Element};
|
|---|
| 527 | if ($element) {
|
|---|
| 528 | # next if already open
|
|---|
| 529 | next if $$opElem{$id} and $$opElem{$id} eq $element;
|
|---|
| 530 | } elsif ($id and not $$opElem{$id}) {
|
|---|
| 531 | # next if already closed and nothing to reopen
|
|---|
| 532 | next unless $element eq '' and @{$self->{Closed}->[$col]->{ID}};
|
|---|
| 533 | }
|
|---|
| 534 | my $opID = $$opHash{ID};
|
|---|
| 535 | my $clHash = $self->{Closed}->[$col];
|
|---|
| 536 | my $clID = $$clHash{ID};
|
|---|
| 537 | my $clElem = $$clHash{Element};
|
|---|
| 538 | # get reference to output column list (use temp list if available)
|
|---|
| 539 | my $cols = $$self{TmpCols} || $$self{Cols};
|
|---|
| 540 | # close everything down to this element if necessary
|
|---|
| 541 | if ($$opElem{$id} or not $id) {
|
|---|
| 542 | while (@$opID) {
|
|---|
| 543 | my $tid = pop @$opID;
|
|---|
| 544 | my $e = $$opElem{$tid};
|
|---|
| 545 | $e =~ s/^<(\S+).*/<\/$1>/s;
|
|---|
| 546 | $$cols[$col] .= $e;
|
|---|
| 547 | if ($id eq $tid or not $id) {
|
|---|
| 548 | delete $$opElem{$tid};
|
|---|
| 549 | last if $id;
|
|---|
| 550 | next;
|
|---|
| 551 | }
|
|---|
| 552 | # add this to the temporarily closed list
|
|---|
| 553 | # (because we really didn't want to close it)
|
|---|
| 554 | push @$clID, $tid;
|
|---|
| 555 | $$clElem{$tid} = $$opElem{$tid};
|
|---|
| 556 | delete $$opElem{$tid};
|
|---|
| 557 | }
|
|---|
| 558 | unless ($id) {
|
|---|
| 559 | # forget all temporarily closed elements
|
|---|
| 560 | $clID = $$clHash{ID} = [ ];
|
|---|
| 561 | $clElem = $$clHash{Element} = { };
|
|---|
| 562 | }
|
|---|
| 563 | } elsif ($$clElem{$id}) {
|
|---|
| 564 | # delete from the list of temporarily closed elements
|
|---|
| 565 | delete $$clElem{$id};
|
|---|
| 566 | @$clID = grep !/^$id$/, @$clID;
|
|---|
| 567 | }
|
|---|
| 568 | next if $element eq '0'; # 0 = don't reopen temporarily closed elements
|
|---|
| 569 |
|
|---|
| 570 | # re-open temporarily closed elements
|
|---|
| 571 | while (@$clID) {
|
|---|
| 572 | my $tid = pop @$clID;
|
|---|
| 573 | $$cols[$col] .= $$clElem{$tid};
|
|---|
| 574 | push @$opID, $tid;
|
|---|
| 575 | $$opElem{$tid} = $$clElem{$tid};
|
|---|
| 576 | delete $$clElem{$tid};
|
|---|
| 577 | }
|
|---|
| 578 | # open specified element
|
|---|
| 579 | if ($element and $element ne '1') {
|
|---|
| 580 | $$cols[$col] .= $element;
|
|---|
| 581 | push @$opID, $id;
|
|---|
| 582 | $$opElem{$id} = $element;
|
|---|
| 583 | }
|
|---|
| 584 | }
|
|---|
| 585 | }
|
|---|
| 586 |
|
|---|
| 587 | #------------------------------------------------------------------------------
|
|---|
| 588 | # Dump a block of data in HTML table form
|
|---|
| 589 | # Inputs: 0) HtmlDump object ref, 1) data position, 2) block pointer,
|
|---|
| 590 | # 3) message, 4) object name, 5) flag, 6) full block length (actual
|
|---|
| 591 | # data may be shorter), 7) data end position, 8) IFD name
|
|---|
| 592 | sub DumpTable($$$;$$$$$$)
|
|---|
| 593 | {
|
|---|
| 594 | my ($self, $pos, $blockPt, $msg, $name, $flag, $len, $endPos, $ifd) = @_;
|
|---|
| 595 | $len = length $$blockPt unless defined $len;
|
|---|
| 596 | $endPos = 0 unless $endPos;
|
|---|
| 597 | my ($f0, $dblRef, $id);
|
|---|
| 598 | my $skipped = 0;
|
|---|
| 599 | if (($endPos and $pos < $endPos) or $flag & 0x02) {
|
|---|
| 600 | # display double-reference addresses in red
|
|---|
| 601 | $f0 = "<span class=V>";
|
|---|
| 602 | $dblRef = 1 if $endPos and $pos < $endPos;
|
|---|
| 603 | } else {
|
|---|
| 604 | $f0 = '';
|
|---|
| 605 | }
|
|---|
| 606 | my @c = ('','','','');
|
|---|
| 607 | $$self{TmpCols} = \@c;
|
|---|
| 608 | if ($name) {
|
|---|
| 609 | if ($msg and $msg =~ /^\[/) {
|
|---|
| 610 | $id = 'U';
|
|---|
| 611 | } else {
|
|---|
| 612 | if ($$self{A}) {
|
|---|
| 613 | $id = 'X';
|
|---|
| 614 | $$self{A} = 0;
|
|---|
| 615 | } else {
|
|---|
| 616 | $id = 'V';
|
|---|
| 617 | $$self{A} = 1;
|
|---|
| 618 | }
|
|---|
| 619 | ++$id unless $dblRef;
|
|---|
| 620 | }
|
|---|
| 621 | my $class = $ifd ? "'$id $ifd'" : $id;
|
|---|
| 622 | $name = "<a name=$name class=$class>";
|
|---|
| 623 | $msg and $msg = "$name$msg</a>";
|
|---|
| 624 | } else {
|
|---|
| 625 | $name = '';
|
|---|
| 626 | }
|
|---|
| 627 | # use base-relative offsets from now on
|
|---|
| 628 | my $cols = 0;
|
|---|
| 629 | my $p = $pos;
|
|---|
| 630 | if ($$self{Cont}) {
|
|---|
| 631 | $cols = $pos & 0x0f;
|
|---|
| 632 | $c[1] .= ($cols == 8) ? ' ' : ' ';
|
|---|
| 633 | } else {
|
|---|
| 634 | my $addr = $pos < 0 ? sprintf("-%.4x",-$pos) : sprintf("%5.4x",$pos);
|
|---|
| 635 | $self->Open('fgd', $f0, 0);
|
|---|
| 636 | $self->Open('fgd', '', 3);
|
|---|
| 637 | $c[0] .= "$addr";
|
|---|
| 638 | $p -= $pos & 0x0f unless $flag & 0x01;
|
|---|
| 639 | if ($p < $pos) {
|
|---|
| 640 | $self->Open('bkg', '', 1, 2); # don't underline white space
|
|---|
| 641 | $cols = $pos - $p;
|
|---|
| 642 | my $n = 3 * $cols;
|
|---|
| 643 | ++$n if $cols > 7;
|
|---|
| 644 | $c[1] .= ' ' x $n;
|
|---|
| 645 | $c[2] .= ' ' x $cols;
|
|---|
| 646 | $p = $pos;
|
|---|
| 647 | }
|
|---|
| 648 | }
|
|---|
| 649 | # loop through each column of hex numbers
|
|---|
| 650 | for (;;) {
|
|---|
| 651 | my (@spanClass, @spanCont, $spanClose, $bkg);
|
|---|
| 652 | if ($p >= $bkgStart and $p < $bkgEnd) {
|
|---|
| 653 | foreach $bkg (@bkgSpan) {
|
|---|
| 654 | next unless $p >= $$bkg{Start} and $p < $$bkg{End};
|
|---|
| 655 | push @spanClass, $$bkg{Class};
|
|---|
| 656 | if ($p + 1 == $$bkg{End}) {
|
|---|
| 657 | $spanClose = 1;
|
|---|
| 658 | } else {
|
|---|
| 659 | push @spanCont, $$bkg{Class}; # this span continues
|
|---|
| 660 | }
|
|---|
| 661 | }
|
|---|
| 662 | $self->Open('bkg', @spanClass ? "<span class='@spanClass'>" : '', 1, 2);
|
|---|
| 663 | } else {
|
|---|
| 664 | $self->Open('bkg', '', 1, 2);
|
|---|
| 665 | }
|
|---|
| 666 | $self->Open('a', $name, 1, 2);
|
|---|
| 667 | my $ch = substr($$blockPt,$p-$pos-$skipped,1);
|
|---|
| 668 | $c[1] .= sprintf("%.2x", ord($ch));
|
|---|
| 669 | # make the character HTML-friendly
|
|---|
| 670 | $ch =~ tr/\x00-\x1f\x7f-\xff/./;
|
|---|
| 671 | $ch =~ s/&/&/g;
|
|---|
| 672 | $ch =~ s/>/>/g;
|
|---|
| 673 | $ch =~ s/</</g;
|
|---|
| 674 | $c[2] .= $ch;
|
|---|
| 675 | ++$p;
|
|---|
| 676 | ++$cols;
|
|---|
| 677 | # close necessary elements
|
|---|
| 678 | if ($spanClose) {
|
|---|
| 679 | my $spanCont = @spanCont ? "<span class='@spanCont'>" : '';
|
|---|
| 680 | # close without reopening if closing anchor later
|
|---|
| 681 | my $arg = ($p - $pos >= $len) ? 0 : $spanCont;
|
|---|
| 682 | $self->Open('bkg', $arg, 1, 2);
|
|---|
| 683 | }
|
|---|
| 684 | if ($dblRef and $p >= $endPos) {
|
|---|
| 685 | $dblRef = 0;
|
|---|
| 686 | ++$id;
|
|---|
| 687 | my $class = $ifd ? "'$id $ifd'" : $id;
|
|---|
| 688 | $name =~ s/class=\w\b/class=$class/;
|
|---|
| 689 | $f0 = '';
|
|---|
| 690 | $self->Open('fgd', $f0, 0);
|
|---|
| 691 | }
|
|---|
| 692 | if ($p - $pos >= $len) {
|
|---|
| 693 | $self->Open('a', '', 1, 2); # close our anchor
|
|---|
| 694 | last;
|
|---|
| 695 | }
|
|---|
| 696 | if ($cols < 16) {
|
|---|
| 697 | $c[1] .= ($cols == 8 ? ' ' : ' ');
|
|---|
| 698 | next;
|
|---|
| 699 | } elsif ($flag & 0x01 and $cols < $len) {
|
|---|
| 700 | $c[1] .= ' ';
|
|---|
| 701 | next; # put it all on one line
|
|---|
| 702 | }
|
|---|
| 703 | unless ($$self{Msg}) {
|
|---|
| 704 | $c[3] .= $msg;
|
|---|
| 705 | $msg = '';
|
|---|
| 706 | }
|
|---|
| 707 | $_ .= "\n" foreach @c; # add CR to all lines
|
|---|
| 708 | $$self{Msg} = 0;
|
|---|
| 709 | # limit data length if specified
|
|---|
| 710 | if ($$self{Limit}) {
|
|---|
| 711 | my $div = ($flag & 0x08) ? 4 : 1;
|
|---|
| 712 | my $lim = $$self{Limit} / (2 * $div) - 16;
|
|---|
| 713 | if ($p - $pos > $lim and $len - $p + $pos > $lim) {
|
|---|
| 714 | my $n = ($len - $p + $pos - $lim) & ~0x0f;
|
|---|
| 715 | if ($n > 16) { # (no use just cutting out one line)
|
|---|
| 716 | $self->Open('bkg', '', 1, 2); # no underline
|
|---|
| 717 | my $note = sprintf "[snip %d lines]", $n / 16;
|
|---|
| 718 | $note = (' ' x (24-length($note)/2)) . $note;
|
|---|
| 719 | $c[0] .= " ...\n";
|
|---|
| 720 | $c[1] .= $note . (' ' x (48-length($note))) . "\n";
|
|---|
| 721 | $c[2] .= " [snip] \n";
|
|---|
| 722 | $c[3] .= "\n";
|
|---|
| 723 | $p += $n;
|
|---|
| 724 | $skipped += $len - length $$blockPt;
|
|---|
| 725 | }
|
|---|
| 726 | }
|
|---|
| 727 | }
|
|---|
| 728 | $c[0] .= ($p < 0 ? sprintf("-%.4x",-$p) : sprintf("%5.4x",$p));
|
|---|
| 729 | $cols = 0;
|
|---|
| 730 | }
|
|---|
| 731 | if ($msg) {
|
|---|
| 732 | $msg = " $msg" if $$self{Msg};
|
|---|
| 733 | $c[3] .= $msg;
|
|---|
| 734 | }
|
|---|
| 735 | if ($flag & 0x100 and $cols < 16) { # continue on same line?
|
|---|
| 736 | $$self{Cont} = 1;
|
|---|
| 737 | $$self{Msg} = 1 if $msg;
|
|---|
| 738 | } else {
|
|---|
| 739 | $_ .= "\n" foreach @c;
|
|---|
| 740 | $$self{Msg} = 0;
|
|---|
| 741 | $$self{Cont} = 0;
|
|---|
| 742 | }
|
|---|
| 743 | # add temporary column data to our real columns
|
|---|
| 744 | my $i;
|
|---|
| 745 | for ($i=0; $i<4; ++$i) {
|
|---|
| 746 | $self->{Cols}->[$i] .= $c[$i];
|
|---|
| 747 | }
|
|---|
| 748 | delete $$self{TmpCols};
|
|---|
| 749 | }
|
|---|
| 750 |
|
|---|
| 751 | #------------------------------------------------------------------------------
|
|---|
| 752 | # Finish dumping of TIFF image data
|
|---|
| 753 | # Inputs: 0) HtmlDump object ref, 1) ExifTool object ref, 2) length of file
|
|---|
| 754 | # (this really belongs in Image::ExifTool::Exif, but is placed here so it
|
|---|
| 755 | # is only compiled when needed)
|
|---|
| 756 | sub FinishTiffDump($$$)
|
|---|
| 757 | {
|
|---|
| 758 | my ($self, $et, $size) = @_;
|
|---|
| 759 | my ($tag, $key, $start, $blockInfo, $i);
|
|---|
| 760 |
|
|---|
| 761 | # list of all indirectly referenced TIFF data tags
|
|---|
| 762 | my %offsetPair = (
|
|---|
| 763 | StripOffsets => 'StripByteCounts',
|
|---|
| 764 | TileOffsets => 'TileByteCounts',
|
|---|
| 765 | FreeOffsets => 'FreeByteCounts',
|
|---|
| 766 | ThumbnailOffset => 'ThumbnailLength',
|
|---|
| 767 | PreviewImageStart => 'PreviewImageLength',
|
|---|
| 768 | JpgFromRawStart => 'JpgFromRawLength',
|
|---|
| 769 | OtherImageStart => 'OtherImageLength',
|
|---|
| 770 | ImageOffset => 'ImageByteCount',
|
|---|
| 771 | AlphaOffset => 'AlphaByteCount',
|
|---|
| 772 | MPImageStart => 'MPImageLength',
|
|---|
| 773 | IDCPreviewStart => 'IDCPreviewLength',
|
|---|
| 774 | SamsungRawPointersOffset => 'SamsungRawPointersLength',
|
|---|
| 775 | );
|
|---|
| 776 |
|
|---|
| 777 | # add TIFF data to html dump
|
|---|
| 778 | foreach $tag (keys %offsetPair) {
|
|---|
| 779 | my $info = $et->GetInfo($tag);
|
|---|
| 780 | next unless %$info;
|
|---|
| 781 | # Panasonic hack: StripOffsets is not valid for Panasonic RW2 files,
|
|---|
| 782 | # and StripRowBytes is not valid for some RAW images
|
|---|
| 783 | if ($tag eq 'StripOffsets' and $$et{TAG_INFO}{$tag}{PanasonicHack}) {
|
|---|
| 784 | # use RawDataOffset instead if available since it is valid in RW2
|
|---|
| 785 | my $info2 = $et->GetInfo('RawDataOffset');
|
|---|
| 786 | $info2 = $info unless %$info2;
|
|---|
| 787 | my @keys = keys %$info2;
|
|---|
| 788 | my $offset = $$info2{$keys[0]};
|
|---|
| 789 | my $raf = $$et{RAF};
|
|---|
| 790 | # ignore StripByteCounts and assume raw data runs to the end of file
|
|---|
| 791 | if (@keys == 1 and $offset =~ /^\d+$/ and $raf) {
|
|---|
| 792 | my $pos = $raf->Tell();
|
|---|
| 793 | $raf->Seek(0, 2); # seek to end
|
|---|
| 794 | my $len = $raf->Tell() - $offset;
|
|---|
| 795 | $raf->Seek($pos, 0);
|
|---|
| 796 | if ($len > 0) {
|
|---|
| 797 | $self->Add($offset, $len, "(Panasonic raw data)", "Size: $len bytes", 0x08);
|
|---|
| 798 | next;
|
|---|
| 799 | }
|
|---|
| 800 | }
|
|---|
| 801 | }
|
|---|
| 802 | # loop through all offsets tags
|
|---|
| 803 | foreach $key (keys %$info) {
|
|---|
| 804 | my $name = Image::ExifTool::GetTagName($key);
|
|---|
| 805 | my $grp1 = $et->GetGroup($key, 1);
|
|---|
| 806 | my $info2 = $et->GetInfo($offsetPair{$tag}, { Group1 => $grp1 });
|
|---|
| 807 | my $key2 = $offsetPair{$tag};
|
|---|
| 808 | $key2 .= $1 if $key =~ /( .*)/; # use same instance number as $tag
|
|---|
| 809 | next unless $$info2{$key2};
|
|---|
| 810 | my $offsets = $$info{$key};
|
|---|
| 811 | my $byteCounts = $$info2{$key2};
|
|---|
| 812 | # ignore primary MPImage (this is the whole JPEG)
|
|---|
| 813 | next if $tag eq 'MPImageStart' and $offsets eq '0';
|
|---|
| 814 | # (long lists may be SCALAR references)
|
|---|
| 815 | my @offsets = split ' ', (ref $offsets ? $$offsets : $offsets);
|
|---|
| 816 | my @byteCounts = split ' ', (ref $byteCounts ? $$byteCounts : $byteCounts);
|
|---|
| 817 | my $num = scalar @offsets;
|
|---|
| 818 | my $li = 0;
|
|---|
| 819 | my $padBytes = 0;
|
|---|
| 820 | for ($i=0; @offsets and @byteCounts; ++$i) {
|
|---|
| 821 | my $offset = shift @offsets;
|
|---|
| 822 | my $byteCount = shift @byteCounts;
|
|---|
| 823 | my $end = $offset + $byteCount;
|
|---|
| 824 | if (@offsets and @byteCounts) {
|
|---|
| 825 | # show data as contiguous if only normal pad bytes between blocks
|
|---|
| 826 | if ($end & 0x01 and $end + 1 == $offsets[0]) {
|
|---|
| 827 | $end += 1;
|
|---|
| 828 | ++$padBytes; # count them
|
|---|
| 829 | }
|
|---|
| 830 | if ($end == $offsets[0]) {
|
|---|
| 831 | # combine these two blocks
|
|---|
| 832 | $byteCounts[0] += $offsets[0] - $offset;
|
|---|
| 833 | $offsets[0] = $offset;
|
|---|
| 834 | next;
|
|---|
| 835 | }
|
|---|
| 836 | }
|
|---|
| 837 | my $msg = $et->GetGroup($key, 1) . ':' . $tag;
|
|---|
| 838 | $msg =~ s/(Offsets?|Start)$/ /;
|
|---|
| 839 | if ($num > 1) {
|
|---|
| 840 | $msg .= "$li-" if $li != $i;
|
|---|
| 841 | $msg .= "$i ";
|
|---|
| 842 | $li = $i + 1;
|
|---|
| 843 | }
|
|---|
| 844 | $msg .= "data";
|
|---|
| 845 | my $tip = "Size: $byteCount bytes";
|
|---|
| 846 | $tip .= ", incl. $padBytes pad bytes" if $padBytes;
|
|---|
| 847 | $self->Add($offset, $byteCount, "($msg)", $tip, 0x08);
|
|---|
| 848 | }
|
|---|
| 849 | }
|
|---|
| 850 | }
|
|---|
| 851 | # find offset of last dumped information, and dump any unknown trailer
|
|---|
| 852 | my $last = 0;
|
|---|
| 853 | my $block = $$self{Block};
|
|---|
| 854 | foreach $start (keys %$block) {
|
|---|
| 855 | foreach $blockInfo (@{$$block{$start}}) {
|
|---|
| 856 | my $end = $start + $$blockInfo[0];
|
|---|
| 857 | $last = $end if $last < $end;
|
|---|
| 858 | }
|
|---|
| 859 | }
|
|---|
| 860 | my $diff = $size - $last;
|
|---|
| 861 | if ($diff > 0 and ($last or $et->Options('Unknown'))) {
|
|---|
| 862 | if ($diff > 1 or $size & 0x01) {
|
|---|
| 863 | $self->Add($last, $diff, "[unknown data]", "Size: $diff bytes", 0x08);
|
|---|
| 864 | } else {
|
|---|
| 865 | $self->Add($last, $diff, "[trailing pad byte]", undef, 0x08);
|
|---|
| 866 | }
|
|---|
| 867 | }
|
|---|
| 868 | }
|
|---|
| 869 |
|
|---|
| 870 | #------------------------------------------------------------------------------
|
|---|
| 871 | # utility routine to write to file or memory
|
|---|
| 872 | # Inputs: 0) file or scalar reference, 1-N) list of stuff to write
|
|---|
| 873 | # Returns: true on success
|
|---|
| 874 | sub Write($@)
|
|---|
| 875 | {
|
|---|
| 876 | my $outfile = shift;
|
|---|
| 877 | if (UNIVERSAL::isa($outfile,'GLOB')) {
|
|---|
| 878 | return print $outfile @_;
|
|---|
| 879 | } elsif (ref $outfile eq 'SCALAR') {
|
|---|
| 880 | $$outfile .= join('', @_);
|
|---|
| 881 | return 1;
|
|---|
| 882 | }
|
|---|
| 883 | return 0;
|
|---|
| 884 | }
|
|---|
| 885 |
|
|---|
| 886 | 1; # end
|
|---|
| 887 |
|
|---|
| 888 | __END__
|
|---|
| 889 |
|
|---|
| 890 | =head1 NAME
|
|---|
| 891 |
|
|---|
| 892 | Image::ExifTool::HtmlDump - Dump information in hex to HTML page
|
|---|
| 893 |
|
|---|
| 894 | =head1 SYNOPSIS
|
|---|
| 895 |
|
|---|
| 896 | use Image::ExifTool::HtmlDump;
|
|---|
| 897 | my $dump = new Image::ExifTool::HtmlDump;
|
|---|
| 898 | $dump->Add($start, $size, $comment);
|
|---|
| 899 | $dump->Print($dumpInfo, $raf, $dataPt, $dataPos, $outfile);
|
|---|
| 900 |
|
|---|
| 901 | =head1 DESCRIPTION
|
|---|
| 902 |
|
|---|
| 903 | This module contains code used to generate an HTML-based hex dump of
|
|---|
| 904 | information for debugging purposes. This is code is called when the
|
|---|
| 905 | ExifTool 'HtmlDump' option is used.
|
|---|
| 906 |
|
|---|
| 907 | Currently, only EXIF/TIFF and JPEG information is dumped.
|
|---|
| 908 |
|
|---|
| 909 | =head1 BUGS
|
|---|
| 910 |
|
|---|
| 911 | Due to a memory allocation bug in ActivePerl 5.8.x for Windows, this code
|
|---|
| 912 | may run extremely slowly when processing large files with this version of
|
|---|
| 913 | Perl.
|
|---|
| 914 |
|
|---|
| 915 | An HTML 4 compliant browser is needed to properly display the generated HTML
|
|---|
| 916 | page.
|
|---|
| 917 |
|
|---|
| 918 | =head1 AUTHOR
|
|---|
| 919 |
|
|---|
| 920 | Copyright 2003-2021, Phil Harvey (philharvey66 at gmail.com)
|
|---|
| 921 |
|
|---|
| 922 | This library is free software; you can redistribute it and/or modify it
|
|---|
| 923 | under the same terms as Perl itself.
|
|---|
| 924 |
|
|---|
| 925 | =head1 SEE ALSO
|
|---|
| 926 |
|
|---|
| 927 | L<Image::ExifTool(3pm)|Image::ExifTool>
|
|---|
| 928 |
|
|---|
| 929 | =cut
|
|---|
| 930 |
|
|---|
