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Issue 1934113002: Update libjpeg_turbo to 1.4.90 from https://github.com/libjpeg-turbo/ (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/libjpeg_turbo.git@master
Patch Set: Created 4 years, 7 months ago
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27 &#160;<span id="projectnumber">1.5</span>
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86 <a href="#pub-attribs">Data Fields</a> </div>
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88 <div class="title">tjtransform Struct Reference<div class="ingroups"><a class="e l" href="group___turbo_j_p_e_g.html">TurboJPEG</a></div></div> </div>
89 </div><!--header-->
90 <div class="contents">
91
92 <p>Lossless transform.
93 <a href="structtjtransform.html#details">More...</a></p>
94
95 <p><code>#include &lt;turbojpeg.h&gt;</code></p>
96 <table class="memberdecls">
97 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs "></a>
98 Data Fields</h2></td></tr>
99 <tr class="memitem:ac324e5e442abec8a961e5bf219db12cf"><td class="memItemLeft" al ign="right" valign="top"><a class="el" href="structtjregion.html">tjregion</a>&# 160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structtjtr ansform.html#ac324e5e442abec8a961e5bf219db12cf">r</a></td></tr>
100 <tr class="memdesc:ac324e5e442abec8a961e5bf219db12cf"><td class="mdescLeft">&#16 0;</td><td class="mdescRight">Cropping region. <a href="#ac324e5e442abec8a961e5 bf219db12cf">More...</a><br/></td></tr>
101 <tr class="separator:ac324e5e442abec8a961e5bf219db12cf"><td class="memSeparator" colspan="2">&#160;</td></tr>
102 <tr class="memitem:a2525aab4ba6978a1c273f74fef50e498"><td class="memItemLeft" al ign="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"> <a class="el" href="structtjtransform.html#a2525aab4ba6978a1c273f74fef50e498">op </a></td></tr>
103 <tr class="memdesc:a2525aab4ba6978a1c273f74fef50e498"><td class="mdescLeft">&#16 0;</td><td class="mdescRight">One of the <a class="el" href="group___turbo_j_p_e _g.html#ga2de531af4e7e6c4f124908376b354866">transform operations</a>. <a href=" #a2525aab4ba6978a1c273f74fef50e498">More...</a><br/></td></tr>
104 <tr class="separator:a2525aab4ba6978a1c273f74fef50e498"><td class="memSeparator" colspan="2">&#160;</td></tr>
105 <tr class="memitem:ac0e74655baa4402209a21e1ae481c8f6"><td class="memItemLeft" al ign="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"> <a class="el" href="structtjtransform.html#ac0e74655baa4402209a21e1ae481c8f6">op tions</a></td></tr>
106 <tr class="memdesc:ac0e74655baa4402209a21e1ae481c8f6"><td class="mdescLeft">&#16 0;</td><td class="mdescRight">The bitwise OR of one of more of the <a class="el" href="group___turbo_j_p_e_g.html#ga9c771a757fc1294add611906b89ab2d2">transform options</a>. <a href="#ac0e74655baa4402209a21e1ae481c8f6">More...</a><br/></td> </tr>
107 <tr class="separator:ac0e74655baa4402209a21e1ae481c8f6"><td class="memSeparator" colspan="2">&#160;</td></tr>
108 <tr class="memitem:a688fe8f1a8ecc12a538d9e561cf338e3"><td class="memItemLeft" al ign="right" valign="top">void *&#160;</td><td class="memItemRight" valign="botto m"><a class="el" href="structtjtransform.html#a688fe8f1a8ecc12a538d9e561cf338e3" >data</a></td></tr>
109 <tr class="memdesc:a688fe8f1a8ecc12a538d9e561cf338e3"><td class="mdescLeft">&#16 0;</td><td class="mdescRight">Arbitrary data that can be accessed within the bod y of the callback function. <a href="#a688fe8f1a8ecc12a538d9e561cf338e3">More.. .</a><br/></td></tr>
110 <tr class="separator:a688fe8f1a8ecc12a538d9e561cf338e3"><td class="memSeparator" colspan="2">&#160;</td></tr>
111 <tr class="memitem:a43ee1bcdd2a8d7249a756774f78793c1"><td class="memItemLeft" al ign="right" valign="top">int(*&#160;</td><td class="memItemRight" valign="bottom "><a class="el" href="structtjtransform.html#a43ee1bcdd2a8d7249a756774f78793c1"> customFilter</a> )(short *coeffs, <a class="el" href="structtjregion.html">tjreg ion</a> arrayRegion, <a class="el" href="structtjregion.html">tjregion</a> plane Region, int componentIndex, int transformIndex, struct <a class="el" href="struc ttjtransform.html">tjtransform</a> *transform)</td></tr>
112 <tr class="memdesc:a43ee1bcdd2a8d7249a756774f78793c1"><td class="mdescLeft">&#16 0;</td><td class="mdescRight">A callback function that can be used to modify the DCT coefficients after they are losslessly transformed but before they are tran scoded to a new JPEG image. <a href="#a43ee1bcdd2a8d7249a756774f78793c1">More.. .</a><br/></td></tr>
113 <tr class="separator:a43ee1bcdd2a8d7249a756774f78793c1"><td class="memSeparator" colspan="2">&#160;</td></tr>
114 </table>
115 <a name="details" id="details"></a><h2 class="groupheader">Detailed Description< /h2>
116 <div class="textblock"><p>Lossless transform. </p>
117 </div><h2 class="groupheader">Field Documentation</h2>
118 <a class="anchor" id="a43ee1bcdd2a8d7249a756774f78793c1"></a>
119 <div class="memitem">
120 <div class="memproto">
121 <table class="memname">
122 <tr>
123 <td class="memname">int(* tjtransform::customFilter)(short *coeffs, <a class="el" href="structtjregion.html">tjregion</a> arrayRegion, <a class="el" h ref="structtjregion.html">tjregion</a> planeRegion, int componentIndex, int tran sformIndex, struct <a class="el" href="structtjtransform.html">tjtransform</a> * transform)</td>
124 </tr>
125 </table>
126 </div><div class="memdoc">
127
128 <p>A callback function that can be used to modify the DCT coefficients after the y are losslessly transformed but before they are transcoded to a new JPEG image. </p>
129 <p>This allows for custom filters or other transformations to be applied in the frequency domain.</p>
130 <dl class="params"><dt>Parameters</dt><dd>
131 <table class="params">
132 <tr><td class="paramname">coeffs</td><td>pointer to an array of transformed DCT coefficients. (NOTE: this pointer is not guaranteed to be valid once the cal lback returns, so applications wishing to hand off the DCT coefficients to anoth er function or library should make a copy of them within the body of the callbac k.)</td></tr>
133 <tr><td class="paramname">arrayRegion</td><td><a class="el" href="structtjre gion.html" title="Cropping region.">tjregion</a> structure containing the width and height of the array pointed to by <code>coeffs</code> as well as its offset relative to the component plane. TurboJPEG implementations may choose to split e ach component plane into multiple DCT coefficient arrays and call the callback f unction once for each array.</td></tr>
134 <tr><td class="paramname">planeRegion</td><td><a class="el" href="structtjre gion.html" title="Cropping region.">tjregion</a> structure containing the width and height of the component plane to which <code>coeffs</code> belongs</td></tr>
135 <tr><td class="paramname">componentID</td><td>ID number of the component pla ne to which <code>coeffs</code> belongs (Y, Cb, and Cr have, respectively, ID's of 0, 1, and 2 in typical JPEG images.)</td></tr>
136 <tr><td class="paramname">transformID</td><td>ID number of the transformed i mage to which <code>coeffs</code> belongs. This is the same as the index of the transform in the <code>transforms</code> array that was passed to <a class="el" href="group___turbo_j_p_e_g.html#gad02cd42b69f193a0623a9c801788df3a" title="Loss lessly transform a JPEG image into another JPEG image.">tjTransform()</a>.</td>< /tr>
137 <tr><td class="paramname">transform</td><td>a pointer to a <a class="el" hre f="structtjtransform.html" title="Lossless transform.">tjtransform</a> structure that specifies the parameters and/or cropping region for this transform</td></t r>
138 </table>
139 </dd>
140 </dl>
141 <dl class="section return"><dt>Returns</dt><dd>0 if the callback was successful, or -1 if an error occurred. </dd></dl>
142
143 </div>
144 </div>
145 <a class="anchor" id="a688fe8f1a8ecc12a538d9e561cf338e3"></a>
146 <div class="memitem">
147 <div class="memproto">
148 <table class="memname">
149 <tr>
150 <td class="memname">void* tjtransform::data</td>
151 </tr>
152 </table>
153 </div><div class="memdoc">
154
155 <p>Arbitrary data that can be accessed within the body of the callback function. </p>
156
157 </div>
158 </div>
159 <a class="anchor" id="a2525aab4ba6978a1c273f74fef50e498"></a>
160 <div class="memitem">
161 <div class="memproto">
162 <table class="memname">
163 <tr>
164 <td class="memname">int tjtransform::op</td>
165 </tr>
166 </table>
167 </div><div class="memdoc">
168
169 <p>One of the <a class="el" href="group___turbo_j_p_e_g.html#ga2de531af4e7e6c4f1 24908376b354866">transform operations</a>. </p>
170
171 </div>
172 </div>
173 <a class="anchor" id="ac0e74655baa4402209a21e1ae481c8f6"></a>
174 <div class="memitem">
175 <div class="memproto">
176 <table class="memname">
177 <tr>
178 <td class="memname">int tjtransform::options</td>
179 </tr>
180 </table>
181 </div><div class="memdoc">
182
183 <p>The bitwise OR of one of more of the <a class="el" href="group___turbo_j_p_e_ g.html#ga9c771a757fc1294add611906b89ab2d2">transform options</a>. </p>
184
185 </div>
186 </div>
187 <a class="anchor" id="ac324e5e442abec8a961e5bf219db12cf"></a>
188 <div class="memitem">
189 <div class="memproto">
190 <table class="memname">
191 <tr>
192 <td class="memname"><a class="el" href="structtjregion.html">tjregion< /a> tjtransform::r</td>
193 </tr>
194 </table>
195 </div><div class="memdoc">
196
197 <p>Cropping region. </p>
198
199 </div>
200 </div>
201 <hr/>The documentation for this struct was generated from the following file:<ul >
202 <li>turbojpeg.h</li>
203 </ul>
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207 Generated by &#160;<a href="http://www.doxygen.org/index.html">
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