# CSJ2K.j2k.codestream.writer.HeaderEncoder.encodeMainHeader

## Content

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<h1 id="CSJ2K_j2k_codestream_writer_HeaderEncoder_encodeMainHeader_" data-uid="CSJ2K.j2k.codestream.writer.HeaderEncoder.encodeMainHeader*">encodeMainHeader Method
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<h4 id="CSJ2K_j2k_codestream_writer_HeaderEncoder_encodeMainHeader" data-uid="CSJ2K.j2k.codestream.writer.HeaderEncoder.encodeMainHeader">encodeMainHeader()</h4>
<div class="markdown level1 summary"><p>Write main header. JJ2000 main header corresponds to the following
sequence of marker segments:</p>
<pre><code>       &lt;ol&gt;&lt;li&gt;SOC&lt;/li&gt;&lt;li&gt;SIZ&lt;/li&gt;&lt;li&gt;COD&lt;/li&gt;&lt;li&gt;COC (if needed)&lt;/li&gt;&lt;li&gt;QCD&lt;/li&gt;&lt;li&gt;QCC (if needed)&lt;/li&gt;&lt;li&gt;POC (if needed)&lt;/li&gt;&lt;/ol&gt;
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public virtual void encodeMainHeader()</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Overridable Sub encodeMainHeader()</code></pre>
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