kc3-lang/libjpeg-turbo/doc/html/structtjscalingfactor.html
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Hash : 98ff1fd1
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Date : 2022-11-21T20:57:39
TurboJPEG: Add lossless JPEG detection capability Add a new TurboJPEG C API function (tjDecompressHeader4()) and Java API method (TJDecompressor.getFlags()) that return the bitwise OR of any flags that are relevant to the JPEG image being decompressed (currently TJFLAG_PROGRESSIVE, TJFLAG_ARITHMETIC, TJFLAG_LOSSLESS, and their Java equivalents.) This allows a calling program to determine whether the image being decompressed is a lossless JPEG image, which means that the decompression scaling feature will not be available and that a full-sized destination buffer should be allocated. More specifically, this fixes a buffer overrun in TJBench, TJExample, and the decompress* fuzz targets that occurred when attempting (in vain) to decompress a lossless JPEG image with decompression scaling enabled.
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doc/html/structtjscalingfactor.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.20"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>TurboJPEG: tjscalingfactor Struct Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/searchdata.js"></script> <script type="text/javascript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> <link href="doxygen-extra.css" rel="stylesheet" type="text/css"/> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">TurboJPEG  <span id="projectnumber">2.2</span> </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.20 --> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ var searchBox = new SearchBox("searchBox", "search",false,'Search'); /* @license-end */ </script> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(function() { initMenu('',true,false,'search.php','Search'); $(document).ready(function() { init_search(); }); }); /* @license-end */</script> <div id="main-nav"></div> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> </div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="javascript:void(0)" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </div> </div><!-- top --> <div class="header"> <div class="summary"> <a href="#pub-attribs">Data Fields</a> </div> <div class="headertitle"> <div class="title">tjscalingfactor Struct Reference<div class="ingroups"><a class="el" href="group___turbo_j_p_e_g.html">TurboJPEG</a></div></div> </div> </div><!--header--> <div class="contents"> <p>Scaling factor. <a href="structtjscalingfactor.html#details">More...</a></p> <p><code>#include <turbojpeg.h></code></p> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a> Data Fields</h2></td></tr> <tr class="memitem:a9b011e57f981ee23083e2c1aa5e640ec"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structtjscalingfactor.html#a9b011e57f981ee23083e2c1aa5e640ec">num</a></td></tr> <tr class="memdesc:a9b011e57f981ee23083e2c1aa5e640ec"><td class="mdescLeft"> </td><td class="mdescRight">Numerator. <a href="structtjscalingfactor.html#a9b011e57f981ee23083e2c1aa5e640ec">More...</a><br /></td></tr> <tr class="separator:a9b011e57f981ee23083e2c1aa5e640ec"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:aefbcdf3e9e62274b2d312c695f133ce3"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structtjscalingfactor.html#aefbcdf3e9e62274b2d312c695f133ce3">denom</a></td></tr> <tr class="memdesc:aefbcdf3e9e62274b2d312c695f133ce3"><td class="mdescLeft"> </td><td class="mdescRight">Denominator. <a href="structtjscalingfactor.html#aefbcdf3e9e62274b2d312c695f133ce3">More...</a><br /></td></tr> <tr class="separator:aefbcdf3e9e62274b2d312c695f133ce3"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p>Scaling factor. </p> </div><h2 class="groupheader">Field Documentation</h2> <a id="aefbcdf3e9e62274b2d312c695f133ce3"></a> <h2 class="memtitle"><span class="permalink"><a href="#aefbcdf3e9e62274b2d312c695f133ce3">◆ </a></span>denom</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int tjscalingfactor::denom</td> </tr> </table> </div><div class="memdoc"> <p>Denominator. </p> </div> </div> <a id="a9b011e57f981ee23083e2c1aa5e640ec"></a> <h2 class="memtitle"><span class="permalink"><a href="#a9b011e57f981ee23083e2c1aa5e640ec">◆ </a></span>num</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int tjscalingfactor::num</td> </tr> </table> </div><div class="memdoc"> <p>Numerator. </p> </div> </div> <hr/>The documentation for this struct was generated from the following file:<ul> <li>turbojpeg.h</li> </ul> </div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by <a href="http://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.8.20 </small></address> </body> </html>