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<h1>jpegSize.cpp File Reference</h1><code>#include "<a class="el" href="jpegSize_8h_source.html">jpegSize.h</a>"</code><br>
<code>#include <stdio.h></code><br>
<p>
<div class="dynheader">
Include dependency graph for jpegSize.cpp:</div>
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<p>
<a href="jpegSize_8cpp_source.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Defines</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#79d8075203f66de43561298655e7066a">NEXTBYTE</a>() getc(<a class="el" href="jpegSize_8cpp.html#f19157da745ecb3f2b088c8f3a10c0a7">infile</a>)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#e747795c32cea1314b49e9b7d65be454">M_SOF0</a> 0xC0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#b58d501dd163fdd0dee4ba6907e191a0">M_SOF1</a> 0xC1</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#eeeb620f261aa6b63448de940c7a7714">M_SOF2</a> 0xC2</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#7f09d1c601661800967c5d7e447d5a1f">M_SOF3</a> 0xC3</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#ce7276c4a30808cd6fe74abda2f16ad6">M_SOF5</a> 0xC5</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#3f5a3446a533760babdfd4d0f775e97c">M_SOF6</a> 0xC6</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#3805e83e6b1e8f52a78f1b6cb0668133">M_SOF7</a> 0xC7</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#5a510cc3009a14911acbbe7ddb378776">M_SOF9</a> 0xC9</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#a718681ce1acfa7622ad9776404cfa98">M_SOF10</a> 0xCA</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#51ac607f59c2730811fd514561770966">M_SOF11</a> 0xCB</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#8ba4457ac8573d317b4562303197c72e">M_SOF13</a> 0xCD</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#e3a73495aaced1aacd8577dac2dbe22e">M_SOF14</a> 0xCE</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#6e4ec1d092fa9aaaa3a8a18aa1ee4381">M_SOF15</a> 0xCF</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#ce3e2c7b5e5b844c165f813bb68a3d37">M_SOI</a> 0xD8</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#43056e27046e8d6327320714a5a0b0f0">M_EOI</a> 0xD9</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#f5fdac2a556ee915b65b295faff22ead">M_SOS</a> 0xDA</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#d451ca014ccbfa47701a7d4bebace89a">M_APP0</a> 0xE0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#8f9c892cd81b369ded8e70dc9363043b">M_APP12</a> 0xEC</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#ee6946f4084da1cf5c9bc225b072c3e5">M_COM</a> 0xFE</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#7032a5e02e3a69b9bb87efd768bffabc">READ_BINARY</a> "rb"</td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#c9692d87db7c729416c07817a3d884ef">process_SOFn</a> (int &<a class="el" href="blur_8cpp.html#2474a5474cbff19523a51eb1de01cda4">width</a>, int &<a class="el" href="blur_8cpp.html#d12fc34ce789bce6c8a05d8a17138534">height</a>)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#c8503f8433f75c15d731b738830b8eb6">skip_variable</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#1a6d29eb9df11f99d0120690c59390cd">read_1_byte</a> (int *res)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#b72572dd497b42bbe207831d9e3a71e3">read_2_bytes</a> (unsigned int *res)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#03a794f9a32e547280feb641b6f482b7">first_marker</a> (int *res)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#3dc947c90667a67ece81b9e877575164">next_marker</a> (int *res)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#15dc90155bd20ad6b903b548af5690ae">getJPEGSize</a> (const char *filename, int &<a class="el" href="blur_8cpp.html#2474a5474cbff19523a51eb1de01cda4">width</a>, int &<a class="el" href="blur_8cpp.html#d12fc34ce789bce6c8a05d8a17138534">height</a>)</td></tr>
<tr><td colspan="2"><br><h2>Variables</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">FILE * </td><td class="memItemRight" valign="bottom"><a class="el" href="jpegSize_8cpp.html#f19157da745ecb3f2b088c8f3a10c0a7">infile</a></td></tr>
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<hr><h2>Define Documentation</h2>
<a class="anchor" name="d451ca014ccbfa47701a7d4bebace89a"></a><!-- doxytag: member="jpegSize.cpp::M_APP0" ref="d451ca014ccbfa47701a7d4bebace89a" args="" -->
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<td class="memname">#define M_APP0 0xE0 </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00042">42</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
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<a class="anchor" name="8f9c892cd81b369ded8e70dc9363043b"></a><!-- doxytag: member="jpegSize.cpp::M_APP12" ref="8f9c892cd81b369ded8e70dc9363043b" args="" -->
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<td class="memname">#define M_APP12 0xEC </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00043">43</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
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<a class="anchor" name="ee6946f4084da1cf5c9bc225b072c3e5"></a><!-- doxytag: member="jpegSize.cpp::M_COM" ref="ee6946f4084da1cf5c9bc225b072c3e5" args="" -->
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<td class="memname">#define M_COM 0xFE </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00044">44</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
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<a class="anchor" name="43056e27046e8d6327320714a5a0b0f0"></a><!-- doxytag: member="jpegSize.cpp::M_EOI" ref="43056e27046e8d6327320714a5a0b0f0" args="" -->
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<td class="memname">#define M_EOI 0xD9 </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00040">40</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
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<a class="anchor" name="e747795c32cea1314b49e9b7d65be454"></a><!-- doxytag: member="jpegSize.cpp::M_SOF0" ref="e747795c32cea1314b49e9b7d65be454" args="" -->
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<td class="memname">#define M_SOF0 0xC0 </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00026">26</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
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<a class="anchor" name="b58d501dd163fdd0dee4ba6907e191a0"></a><!-- doxytag: member="jpegSize.cpp::M_SOF1" ref="b58d501dd163fdd0dee4ba6907e191a0" args="" -->
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<td class="memname">#define M_SOF1 0xC1 </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00027">27</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
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<a class="anchor" name="a718681ce1acfa7622ad9776404cfa98"></a><!-- doxytag: member="jpegSize.cpp::M_SOF10" ref="a718681ce1acfa7622ad9776404cfa98" args="" -->
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<td class="memname">#define M_SOF10 0xCA </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00034">34</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
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<a class="anchor" name="51ac607f59c2730811fd514561770966"></a><!-- doxytag: member="jpegSize.cpp::M_SOF11" ref="51ac607f59c2730811fd514561770966" args="" -->
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<td class="memname">#define M_SOF11 0xCB </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00035">35</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
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<a class="anchor" name="8ba4457ac8573d317b4562303197c72e"></a><!-- doxytag: member="jpegSize.cpp::M_SOF13" ref="8ba4457ac8573d317b4562303197c72e" args="" -->
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<td class="memname">#define M_SOF13 0xCD </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00036">36</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
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<a class="anchor" name="e3a73495aaced1aacd8577dac2dbe22e"></a><!-- doxytag: member="jpegSize.cpp::M_SOF14" ref="e3a73495aaced1aacd8577dac2dbe22e" args="" -->
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<td class="memname">#define M_SOF14 0xCE </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00037">37</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
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<a class="anchor" name="6e4ec1d092fa9aaaa3a8a18aa1ee4381"></a><!-- doxytag: member="jpegSize.cpp::M_SOF15" ref="6e4ec1d092fa9aaaa3a8a18aa1ee4381" args="" -->
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<td class="memname">#define M_SOF15 0xCF </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00038">38</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
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<a class="anchor" name="eeeb620f261aa6b63448de940c7a7714"></a><!-- doxytag: member="jpegSize.cpp::M_SOF2" ref="eeeb620f261aa6b63448de940c7a7714" args="" -->
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<td class="memname">#define M_SOF2 0xC2 </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00028">28</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
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<a class="anchor" name="7f09d1c601661800967c5d7e447d5a1f"></a><!-- doxytag: member="jpegSize.cpp::M_SOF3" ref="7f09d1c601661800967c5d7e447d5a1f" args="" -->
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<td class="memname">#define M_SOF3 0xC3 </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00029">29</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
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<a class="anchor" name="ce7276c4a30808cd6fe74abda2f16ad6"></a><!-- doxytag: member="jpegSize.cpp::M_SOF5" ref="ce7276c4a30808cd6fe74abda2f16ad6" args="" -->
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<td class="memname">#define M_SOF5 0xC5 </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00030">30</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
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<a class="anchor" name="3f5a3446a533760babdfd4d0f775e97c"></a><!-- doxytag: member="jpegSize.cpp::M_SOF6" ref="3f5a3446a533760babdfd4d0f775e97c" args="" -->
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<td class="memname">#define M_SOF6 0xC6 </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00031">31</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
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<a class="anchor" name="3805e83e6b1e8f52a78f1b6cb0668133"></a><!-- doxytag: member="jpegSize.cpp::M_SOF7" ref="3805e83e6b1e8f52a78f1b6cb0668133" args="" -->
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<td class="memname">#define M_SOF7 0xC7 </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00032">32</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
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<a class="anchor" name="5a510cc3009a14911acbbe7ddb378776"></a><!-- doxytag: member="jpegSize.cpp::M_SOF9" ref="5a510cc3009a14911acbbe7ddb378776" args="" -->
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<td class="memname">#define M_SOF9 0xC9 </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00033">33</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
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<a class="anchor" name="ce3e2c7b5e5b844c165f813bb68a3d37"></a><!-- doxytag: member="jpegSize.cpp::M_SOI" ref="ce3e2c7b5e5b844c165f813bb68a3d37" args="" -->
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<td class="memname">#define M_SOI 0xD8 </td>
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<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00039">39</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00149">first_marker()</a>.</p>
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</div><p>
<a class="anchor" name="f5fdac2a556ee915b65b295faff22ead"></a><!-- doxytag: member="jpegSize.cpp::M_SOS" ref="f5fdac2a556ee915b65b295faff22ead" args="" -->
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<td class="memname">#define M_SOS 0xDA </td>
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<p>
<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00041">41</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
</div>
</div><p>
<a class="anchor" name="79d8075203f66de43561298655e7066a"></a><!-- doxytag: member="jpegSize.cpp::NEXTBYTE" ref="79d8075203f66de43561298655e7066a" args="()" -->
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<td class="memname">#define NEXTBYTE </td>
<td>(</td>
</td>
<td class="paramname"> </td>
<td> ) </td>
<td> getc(<a class="el" href="jpegSize_8cpp.html#f19157da745ecb3f2b088c8f3a10c0a7">infile</a>)</td>
</tr>
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<p>
<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00018">18</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00149">first_marker()</a>, <a class="el" href="jpegSize_8cpp_source.html#l00202">read_1_byte()</a>, and <a class="el" href="jpegSize_8cpp_source.html#l00216">read_2_bytes()</a>.</p>
</div>
</div><p>
<a class="anchor" name="7032a5e02e3a69b9bb87efd768bffabc"></a><!-- doxytag: member="jpegSize.cpp::READ_BINARY" ref="7032a5e02e3a69b9bb87efd768bffabc" args="" -->
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<td class="memname">#define READ_BINARY "rb" </td>
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</div>
<div class="memdoc">
<p>
<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00052">52</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
</div>
</div><p>
<hr><h2>Function Documentation</h2>
<a class="anchor" name="03a794f9a32e547280feb641b6f482b7"></a><!-- doxytag: member="jpegSize.cpp::first_marker" ref="03a794f9a32e547280feb641b6f482b7" args="(int *res)" -->
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<td class="memname">bool first_marker </td>
<td>(</td>
<td class="paramtype">int * </td>
<td class="paramname"> <em>res</em> </td>
<td> ) </td>
<td></td>
</tr>
</table>
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<div class="memdoc">
<p>
<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00149">149</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>References <a class="el" href="jpegSize_8cpp_source.html#l00039">M_SOI</a>, and <a class="el" href="jpegSize_8cpp_source.html#l00018">NEXTBYTE</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
<div class="fragment"><pre class="fragment"><a name="l00150"></a>00150 {
<a name="l00151"></a>00151 <span class="keywordtype">int</span> c1, c2;
<a name="l00152"></a>00152 c1 = <a class="code" href="jpegSize_8cpp.html#79d8075203f66de43561298655e7066a">NEXTBYTE</a>();
<a name="l00153"></a>00153 c2 = <a class="code" href="jpegSize_8cpp.html#79d8075203f66de43561298655e7066a">NEXTBYTE</a>();
<a name="l00154"></a>00154 <span class="keywordflow">if</span> (c1 != 0xFF || c2 != <a class="code" href="jpegSize_8cpp.html#ce3e2c7b5e5b844c165f813bb68a3d37">M_SOI</a>)
<a name="l00155"></a>00155 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00156"></a>00156 <span class="keywordflow">else</span>
<a name="l00157"></a>00157 {
<a name="l00158"></a>00158 *res = c2;
<a name="l00159"></a>00159 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="15dc90155bd20ad6b903b548af5690ae"></a><!-- doxytag: member="jpegSize.cpp::getJPEGSize" ref="15dc90155bd20ad6b903b548af5690ae" args="(const char *filename, int &width, int &height)" -->
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<td class="memname">bool getJPEGSize </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>filename</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"> <em>width</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"> <em>height</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
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<p>
<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00065">65</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>References <a class="el" href="jpegSize_8cpp_source.html#l00149">first_marker()</a>, <a class="el" href="jpegSize_8cpp_source.html#l00056">infile</a>, <a class="el" href="jpegSize_8cpp_source.html#l00040">M_EOI</a>, <a class="el" href="jpegSize_8cpp_source.html#l00026">M_SOF0</a>, <a class="el" href="jpegSize_8cpp_source.html#l00027">M_SOF1</a>, <a class="el" href="jpegSize_8cpp_source.html#l00034">M_SOF10</a>, <a class="el" href="jpegSize_8cpp_source.html#l00035">M_SOF11</a>, <a class="el" href="jpegSize_8cpp_source.html#l00036">M_SOF13</a>, <a class="el" href="jpegSize_8cpp_source.html#l00037">M_SOF14</a>, <a class="el" href="jpegSize_8cpp_source.html#l00038">M_SOF15</a>, <a class="el" href="jpegSize_8cpp_source.html#l00028">M_SOF2</a>, <a class="el" href="jpegSize_8cpp_source.html#l00029">M_SOF3</a>, <a class="el" href="jpegSize_8cpp_source.html#l00030">M_SOF5</a>, <a class="el" href="jpegSize_8cpp_source.html#l00031">M_SOF6</a>, <a class="el" href="jpegSize_8cpp_source.html#l00032">M_SOF7</a>, <a class="el" href="jpegSize_8cpp_source.html#l00033">M_SOF9</a>, <a class="el" href="jpegSize_8cpp_source.html#l00041">M_SOS</a>, <a class="el" href="jpegSize_8cpp_source.html#l00172">next_marker()</a>, <a class="el" href="jpegSize_8cpp_source.html#l00261">process_SOFn()</a>, <a class="el" href="jpegSize_8cpp_source.html#l00052">READ_BINARY</a>, and <a class="el" href="jpegSize_8cpp_source.html#l00237">skip_variable()</a>.</p>
<p>Referenced by <a class="el" href="imageTools_8cpp_source.html#l00201">getImageSize()</a>, and <a class="el" href="imageTools_8cpp_source.html#l00033">isJpeg()</a>.</p>
<div class="fragment"><pre class="fragment"><a name="l00066"></a>00066 {
<a name="l00067"></a>00067 <span class="comment">//open file</span>
<a name="l00068"></a>00068 <span class="keywordflow">if</span> ((<a class="code" href="jpegSize_8cpp.html#f19157da745ecb3f2b088c8f3a10c0a7">infile</a> = fopen(filename, <a class="code" href="jpegSize_8cpp.html#7032a5e02e3a69b9bb87efd768bffabc">READ_BINARY</a>)) == NULL)
<a name="l00069"></a>00069 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00070"></a>00070
<a name="l00071"></a>00071 <span class="comment">//this is scan_JPEG_header (int verbose)</span>
<a name="l00072"></a>00072 <span class="comment">//Parse the marker stream until SOFn is seen;</span>
<a name="l00073"></a>00073 <span class="keywordtype">int</span> marker;
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="comment">//Expect SOI at start of file</span>
<a name="l00076"></a>00076 <span class="keywordflow">if</span> (!<a class="code" href="jpegSize_8cpp.html#03a794f9a32e547280feb641b6f482b7">first_marker</a>(&marker))
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 fclose(<a class="code" href="jpegSize_8cpp.html#f19157da745ecb3f2b088c8f3a10c0a7">infile</a>);
<a name="l00079"></a>00079 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00080"></a>00080 }
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="comment">/* Scan miscellaneous markers until we reach SOFn. */</span>
<a name="l00083"></a>00083 <span class="keywordflow">for</span> (;;)
<a name="l00084"></a>00084 {
<a name="l00085"></a>00085 <span class="keywordflow">if</span>(!<a class="code" href="jpegSize_8cpp.html#3dc947c90667a67ece81b9e877575164">next_marker</a>(&marker))
<a name="l00086"></a>00086 {
<a name="l00087"></a>00087 fclose(<a class="code" href="jpegSize_8cpp.html#f19157da745ecb3f2b088c8f3a10c0a7">infile</a>);
<a name="l00088"></a>00088 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="keywordflow">switch</span> (marker)
<a name="l00092"></a>00092 {
<a name="l00093"></a>00093 <span class="comment">/* Note that marker codes 0xC4, 0xC8, 0xCC are not, and must not be,</span>
<a name="l00094"></a>00094 <span class="comment"> * treated as SOFn. C4 in particular is actually DHT.</span>
<a name="l00095"></a>00095 <span class="comment"> */</span>
<a name="l00096"></a>00096 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#e747795c32cea1314b49e9b7d65be454">M_SOF0</a>: <span class="comment">/* Baseline */</span>
<a name="l00097"></a>00097 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#b58d501dd163fdd0dee4ba6907e191a0">M_SOF1</a>: <span class="comment">/* Extended sequential, Huffman */</span>
<a name="l00098"></a>00098 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#eeeb620f261aa6b63448de940c7a7714">M_SOF2</a>: <span class="comment">/* Progressive, Huffman */</span>
<a name="l00099"></a>00099 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#7f09d1c601661800967c5d7e447d5a1f">M_SOF3</a>: <span class="comment">/* Lossless, Huffman */</span>
<a name="l00100"></a>00100 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#ce7276c4a30808cd6fe74abda2f16ad6">M_SOF5</a>: <span class="comment">/* Differential sequential, Huffman */</span>
<a name="l00101"></a>00101 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#3f5a3446a533760babdfd4d0f775e97c">M_SOF6</a>: <span class="comment">/* Differential progressive, Huffman */</span>
<a name="l00102"></a>00102 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#3805e83e6b1e8f52a78f1b6cb0668133">M_SOF7</a>: <span class="comment">/* Differential lossless, Huffman */</span>
<a name="l00103"></a>00103 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#5a510cc3009a14911acbbe7ddb378776">M_SOF9</a>: <span class="comment">/* Extended sequential, arithmetic */</span>
<a name="l00104"></a>00104 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#a718681ce1acfa7622ad9776404cfa98">M_SOF10</a>: <span class="comment">/* Progressive, arithmetic */</span>
<a name="l00105"></a>00105 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#51ac607f59c2730811fd514561770966">M_SOF11</a>: <span class="comment">/* Lossless, arithmetic */</span>
<a name="l00106"></a>00106 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#8ba4457ac8573d317b4562303197c72e">M_SOF13</a>: <span class="comment">/* Differential sequential, arithmetic */</span>
<a name="l00107"></a>00107 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#e3a73495aaced1aacd8577dac2dbe22e">M_SOF14</a>: <span class="comment">/* Differential progressive, arithmetic */</span>
<a name="l00108"></a>00108 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#6e4ec1d092fa9aaaa3a8a18aa1ee4381">M_SOF15</a>: <span class="comment">/* Differential lossless, arithmetic */</span>
<a name="l00109"></a>00109 <span class="keywordflow">if</span>(!<a class="code" href="jpegSize_8cpp.html#c9692d87db7c729416c07817a3d884ef">process_SOFn</a>(<a class="code" href="blur_8cpp.html#2474a5474cbff19523a51eb1de01cda4">width</a>, <a class="code" href="blur_8cpp.html#d12fc34ce789bce6c8a05d8a17138534">height</a>))
<a name="l00110"></a>00110 {
<a name="l00111"></a>00111 fclose(<a class="code" href="jpegSize_8cpp.html#f19157da745ecb3f2b088c8f3a10c0a7">infile</a>);
<a name="l00112"></a>00112 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00113"></a>00113 }
<a name="l00114"></a>00114 <span class="keywordflow">else</span>
<a name="l00115"></a>00115 {
<a name="l00116"></a>00116 fclose(<a class="code" href="jpegSize_8cpp.html#f19157da745ecb3f2b088c8f3a10c0a7">infile</a>);
<a name="l00117"></a>00117 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00118"></a>00118 }
<a name="l00119"></a>00119 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#f5fdac2a556ee915b65b295faff22ead">M_SOS</a>: <span class="comment">/* stop before hitting compressed data */</span>
<a name="l00120"></a>00120 {
<a name="l00121"></a>00121 fclose(<a class="code" href="jpegSize_8cpp.html#f19157da745ecb3f2b088c8f3a10c0a7">infile</a>);
<a name="l00122"></a>00122 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00123"></a>00123 }
<a name="l00124"></a>00124 <span class="keywordflow">case</span> <a class="code" href="jpegSize_8cpp.html#43056e27046e8d6327320714a5a0b0f0">M_EOI</a>: <span class="comment">/* in case it's a tables-only JPEG stream */</span>
<a name="l00125"></a>00125 {
<a name="l00126"></a>00126 fclose(<a class="code" href="jpegSize_8cpp.html#f19157da745ecb3f2b088c8f3a10c0a7">infile</a>);
<a name="l00127"></a>00127 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00128"></a>00128 }
<a name="l00129"></a>00129 <span class="keywordflow">default</span>: <span class="comment">/* Anything else just gets skipped */</span>
<a name="l00130"></a>00130 <a class="code" href="jpegSize_8cpp.html#c8503f8433f75c15d731b738830b8eb6">skip_variable</a>(); <span class="comment">/* we assume it has a parameter count... */</span>
<a name="l00131"></a>00131 <span class="keywordflow">break</span>;
<a name="l00132"></a>00132 }
<a name="l00133"></a>00133 } <span class="comment">/* end loop */</span>
<a name="l00134"></a>00134
<a name="l00135"></a>00135
<a name="l00136"></a>00136 <span class="comment">//cout << "ERROR!\n";</span>
<a name="l00137"></a>00137 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00138"></a>00138
<a name="l00139"></a>00139 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="3dc947c90667a67ece81b9e877575164"></a><!-- doxytag: member="jpegSize.cpp::next_marker" ref="3dc947c90667a67ece81b9e877575164" args="(int *res)" -->
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<div class="memproto">
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<td class="memname">bool next_marker </td>
<td>(</td>
<td class="paramtype">int * </td>
<td class="paramname"> <em>res</em> </td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00172">172</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>References <a class="el" href="jpegSize_8cpp_source.html#l00202">read_1_byte()</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
<div class="fragment"><pre class="fragment"><a name="l00173"></a>00173 {
<a name="l00174"></a>00174 <span class="keywordtype">int</span> c;
<a name="l00175"></a>00175 <span class="keywordtype">int</span> discarded_bytes = 0;
<a name="l00176"></a>00176
<a name="l00177"></a>00177 <span class="comment">/* Find 0xFF byte; count and skip any non-FFs. */</span>
<a name="l00178"></a>00178 <span class="keywordflow">if</span>(!<a class="code" href="jpegSize_8cpp.html#1a6d29eb9df11f99d0120690c59390cd">read_1_byte</a>(&c))
<a name="l00179"></a>00179 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00180"></a>00180 <span class="keywordflow">while</span> (c != 0xFF)
<a name="l00181"></a>00181 {
<a name="l00182"></a>00182 discarded_bytes++;
<a name="l00183"></a>00183 <span class="keywordflow">if</span>(!<a class="code" href="jpegSize_8cpp.html#1a6d29eb9df11f99d0120690c59390cd">read_1_byte</a>(&c))
<a name="l00184"></a>00184 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00185"></a>00185 }
<a name="l00186"></a>00186 <span class="comment">/* Get marker code byte, swallowing any duplicate FF bytes. Extra FFs</span>
<a name="l00187"></a>00187 <span class="comment"> * are legal as pad bytes, so don't count them in discarded_bytes.</span>
<a name="l00188"></a>00188 <span class="comment"> */</span>
<a name="l00189"></a>00189 <span class="keywordflow">do</span>
<a name="l00190"></a>00190 {
<a name="l00191"></a>00191 <span class="keywordflow">if</span>(!<a class="code" href="jpegSize_8cpp.html#1a6d29eb9df11f99d0120690c59390cd">read_1_byte</a>(&c))
<a name="l00192"></a>00192 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00193"></a>00193 } <span class="keywordflow">while</span> (c == 0xFF);
<a name="l00194"></a>00194
<a name="l00195"></a>00195 <span class="comment">// if (discarded_bytes != 0) { cout << "Warning: garbage data found in JPEG file\n"; }</span>
<a name="l00196"></a>00196
<a name="l00197"></a>00197 *res = c;
<a name="l00198"></a>00198 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00199"></a>00199 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="c9692d87db7c729416c07817a3d884ef"></a><!-- doxytag: member="jpegSize.cpp::process_SOFn" ref="c9692d87db7c729416c07817a3d884ef" args="(int &width, int &height)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">bool process_SOFn </td>
<td>(</td>
<td class="paramtype">int & </td>
<td class="paramname"> <em>width</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"> <em>height</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00261">261</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>References <a class="el" href="jpegSize_8cpp_source.html#l00202">read_1_byte()</a>, and <a class="el" href="jpegSize_8cpp_source.html#l00216">read_2_bytes()</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
<div class="fragment"><pre class="fragment"><a name="l00262"></a>00262 {
<a name="l00263"></a>00263 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length;
<a name="l00264"></a>00264 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> image_height, image_width;
<a name="l00265"></a>00265 <span class="keywordtype">int</span> data_precision;
<a name="l00266"></a>00266
<a name="l00267"></a>00267 <span class="keywordflow">if</span>(!<a class="code" href="jpegSize_8cpp.html#b72572dd497b42bbe207831d9e3a71e3">read_2_bytes</a>(&length) ||
<a name="l00268"></a>00268 !<a class="code" href="jpegSize_8cpp.html#1a6d29eb9df11f99d0120690c59390cd">read_1_byte</a>(&data_precision) ||
<a name="l00269"></a>00269 !<a class="code" href="jpegSize_8cpp.html#b72572dd497b42bbe207831d9e3a71e3">read_2_bytes</a>(&image_height) ||
<a name="l00270"></a>00270 !<a class="code" href="jpegSize_8cpp.html#b72572dd497b42bbe207831d9e3a71e3">read_2_bytes</a>(&image_width) )
<a name="l00271"></a>00271 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00272"></a>00272
<a name="l00273"></a>00273 <a class="code" href="blur_8cpp.html#2474a5474cbff19523a51eb1de01cda4">width</a> = (int) image_width;
<a name="l00274"></a>00274 <a class="code" href="blur_8cpp.html#d12fc34ce789bce6c8a05d8a17138534">height</a> = (int) image_height;
<a name="l00275"></a>00275 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00276"></a>00276 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="1a6d29eb9df11f99d0120690c59390cd"></a><!-- doxytag: member="jpegSize.cpp::read_1_byte" ref="1a6d29eb9df11f99d0120690c59390cd" args="(int *res)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">bool read_1_byte </td>
<td>(</td>
<td class="paramtype">int * </td>
<td class="paramname"> <em>res</em> </td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00202">202</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>References <a class="el" href="jpegSize_8cpp_source.html#l00018">NEXTBYTE</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00172">next_marker()</a>, <a class="el" href="jpegSize_8cpp_source.html#l00261">process_SOFn()</a>, and <a class="el" href="jpegSize_8cpp_source.html#l00237">skip_variable()</a>.</p>
<div class="fragment"><pre class="fragment"><a name="l00203"></a>00203 {
<a name="l00204"></a>00204 <span class="keywordtype">int</span> c = <a class="code" href="jpegSize_8cpp.html#79d8075203f66de43561298655e7066a">NEXTBYTE</a>();
<a name="l00205"></a>00205 <span class="keywordflow">if</span> (c == EOF)
<a name="l00206"></a>00206 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00207"></a>00207 <span class="keywordflow">else</span>
<a name="l00208"></a>00208 {
<a name="l00209"></a>00209 *res = c;
<a name="l00210"></a>00210 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00211"></a>00211 }
<a name="l00212"></a>00212 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="b72572dd497b42bbe207831d9e3a71e3"></a><!-- doxytag: member="jpegSize.cpp::read_2_bytes" ref="b72572dd497b42bbe207831d9e3a71e3" args="(unsigned int *res)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">bool read_2_bytes </td>
<td>(</td>
<td class="paramtype">unsigned int * </td>
<td class="paramname"> <em>res</em> </td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00216">216</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>References <a class="el" href="jpegSize_8cpp_source.html#l00018">NEXTBYTE</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00261">process_SOFn()</a>, and <a class="el" href="jpegSize_8cpp_source.html#l00237">skip_variable()</a>.</p>
<div class="fragment"><pre class="fragment"><a name="l00217"></a>00217 {
<a name="l00218"></a>00218 <span class="keywordtype">int</span> c1, c2;
<a name="l00219"></a>00219 c1 = <a class="code" href="jpegSize_8cpp.html#79d8075203f66de43561298655e7066a">NEXTBYTE</a>();
<a name="l00220"></a>00220 <span class="keywordflow">if</span> (c1 == EOF)
<a name="l00221"></a>00221 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00222"></a>00222 c2 = <a class="code" href="jpegSize_8cpp.html#79d8075203f66de43561298655e7066a">NEXTBYTE</a>();
<a name="l00223"></a>00223 <span class="keywordflow">if</span> (c2 == EOF)
<a name="l00224"></a>00224 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00225"></a>00225 *res = (((<span class="keywordtype">unsigned</span> int) c1) << 8) + ((<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) c2);
<a name="l00226"></a>00226 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00227"></a>00227 }
</pre></div>
<p>
</div>
</div><p>
<a class="anchor" name="c8503f8433f75c15d731b738830b8eb6"></a><!-- doxytag: member="jpegSize.cpp::skip_variable" ref="c8503f8433f75c15d731b738830b8eb6" args="()" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">bool skip_variable </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00237">237</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>References <a class="el" href="jpegSize_8cpp_source.html#l00202">read_1_byte()</a>, and <a class="el" href="jpegSize_8cpp_source.html#l00216">read_2_bytes()</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
<div class="fragment"><pre class="fragment"><a name="l00239"></a>00239 {
<a name="l00240"></a>00240 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length;
<a name="l00241"></a>00241
<a name="l00242"></a>00242 <span class="comment">/* Get the marker parameter length count */</span>
<a name="l00243"></a>00243 <span class="keywordflow">if</span>(!<a class="code" href="jpegSize_8cpp.html#b72572dd497b42bbe207831d9e3a71e3">read_2_bytes</a>(&length))
<a name="l00244"></a>00244 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00245"></a>00245 <span class="comment">/* Length includes itself, so must be at least 2 */</span>
<a name="l00246"></a>00246 <span class="keywordflow">if</span> (length < 2)
<a name="l00247"></a>00247 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00248"></a>00248 length -= 2;
<a name="l00249"></a>00249 <span class="comment">/* Skip over the remaining bytes */</span>
<a name="l00250"></a>00250 <span class="keywordflow">while</span> (length > 0)
<a name="l00251"></a>00251 {
<a name="l00252"></a>00252 <span class="keywordtype">int</span> tmp;
<a name="l00253"></a>00253 <span class="keywordflow">if</span>(!<a class="code" href="jpegSize_8cpp.html#1a6d29eb9df11f99d0120690c59390cd">read_1_byte</a>(&tmp))
<a name="l00254"></a>00254 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00255"></a>00255 length--;
<a name="l00256"></a>00256 }
<a name="l00257"></a>00257 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00258"></a>00258 }
</pre></div>
<p>
</div>
</div><p>
<hr><h2>Variable Documentation</h2>
<a class="anchor" name="f19157da745ecb3f2b088c8f3a10c0a7"></a><!-- doxytag: member="jpegSize.cpp::infile" ref="f19157da745ecb3f2b088c8f3a10c0a7" args="" -->
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<td class="memname">FILE* <a class="el" href="jpegSize_8cpp.html#f19157da745ecb3f2b088c8f3a10c0a7">infile</a> </td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<p>Definition at line <a class="el" href="jpegSize_8cpp_source.html#l00056">56</a> of file <a class="el" href="jpegSize_8cpp_source.html">jpegSize.cpp</a>.</p>
<p>Referenced by <a class="el" href="jpegSize_8cpp_source.html#l00065">getJPEGSize()</a>.</p>
</div>
</div><p>
</div>
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