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| <section id="libjpeg-jpeg-image-encoding-library"> |
| <h1><code class="docutils literal notranslate"><span class="pre">libjpeg</span></code> JPEG image encoding library<a class="headerlink" href="#libjpeg-jpeg-image-encoding-library" title="Permalink to this heading"></a></h1> |
| <p><code class="docutils literal notranslate"><span class="pre">libjpeg</span></code> is an open-source library that provides functionality for encoding and decoding images in the JPEG format. |
| It implements the baseline JPEG standard and is commonly used in image-related applications and utilities.</p> |
| <section id="including-the-library"> |
| <h2>Including the library<a class="headerlink" href="#including-the-library" title="Permalink to this heading"></a></h2> |
| <p>To use <code class="docutils literal notranslate"><span class="pre">libjpeg</span></code> in a C program, include the main header:</p> |
| <div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="cp">#include</span><span class="w"> </span><span class="cpf"><jpeglib.h></span> |
| </pre></div> |
| </div> |
| </section> |
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| <h2>Configuration<a class="headerlink" href="#configuration" title="Permalink to this heading"></a></h2> |
| <p>Support for <code class="docutils literal notranslate"><span class="pre">libjpeg</span></code> must be enabled in Kconfig:</p> |
| <blockquote> |
| <div><p>CONFIG_LIBJPEG=y</p> |
| </div></blockquote> |
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| <h2>Example<a class="headerlink" href="#example" title="Permalink to this heading"></a></h2> |
| <p>NuttX provides an example application that demonstrates how to encode, decode, and resize JPEG images using <code class="docutils literal notranslate"><span class="pre">libjpeg</span></code>. |
| It can be found under:</p> |
| <p><code class="docutils literal notranslate"><span class="pre">apps/graphics/jpgresizetool</span></code></p> |
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