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<h4 class="subsection" id="Base64-and-Binary-Data-Transmission-1"><span>36.4.3 Base64 and Binary Data Transmission<a class="copiable-link" href="#Base64-and-Binary-Data-Transmission-1"> ¶</a></span></h4>
<p>Some transmission channels can not accept binary data. It is customary to
encode binary data in Base64 for transmission and to decode the data upon
reception.
</p>
<a class="anchor" id="XREFbase64_005fencode"></a><span style="display:block; margin-top:-4.5ex;"> </span>
<dl class="first-deftypefn">
<dt class="deftypefn" id="index-base64_005fencode"><span><code class="def-type"><var class="var">s</var> =</code> <strong class="def-name">base64_encode</strong> <code class="def-code-arguments">(<var class="var">x</var>)</code><a class="copiable-link" href="#index-base64_005fencode"> ¶</a></span></dt>
<dd><p>Encode a double matrix or array <var class="var">x</var> into the base64 format string
<var class="var">s</var>.
</p>
<p><strong class="strong">See also:</strong> <a class="ref" href="#XREFbase64_005fdecode">base64_decode</a>, <a class="ref" href="#XREFmatlab_005fnet_005fbase64decode">matlab.net.base64decode</a>, <a class="ref" href="#XREFmatlab_005fnet_005fbase64encode">matlab.net.base64encode</a>.
</p></dd></dl>
<a class="anchor" id="XREFbase64_005fdecode"></a><span style="display:block; margin-top:-4.5ex;"> </span>
<dl class="first-deftypefn">
<dt class="deftypefn" id="index-base64_005fdecode"><span><code class="def-type"><var class="var">x</var> =</code> <strong class="def-name">base64_decode</strong> <code class="def-code-arguments">(<var class="var">s</var>)</code><a class="copiable-link" href="#index-base64_005fdecode"> ¶</a></span></dt>
<dt class="deftypefnx def-cmd-deftypefn" id="index-base64_005fdecode-1"><span><code class="def-type"><var class="var">x</var> =</code> <strong class="def-name">base64_decode</strong> <code class="def-code-arguments">(<var class="var">s</var>, <var class="var">dims</var>)</code><a class="copiable-link" href="#index-base64_005fdecode-1"> ¶</a></span></dt>
<dd><p>Decode the double matrix or array <var class="var">x</var> from the base64 encoded string
<var class="var">s</var>.
</p>
<p>The optional input parameter <var class="var">dims</var> should be a vector containing the
dimensions of the decoded array.
</p>
<p><strong class="strong">See also:</strong> <a class="ref" href="#XREFbase64_005fencode">base64_encode</a>, <a class="ref" href="#XREFmatlab_005fnet_005fbase64decode">matlab.net.base64decode</a>, <a class="ref" href="#XREFmatlab_005fnet_005fbase64encode">matlab.net.base64encode</a>.
</p></dd></dl>
<a class="anchor" id="XREFmatlab_005fnet_005fbase64encode"></a><span style="display:block; margin-top:-4.5ex;"> </span>
<dl class="first-deftypefn">
<dt class="deftypefn" id="index-matlab_002enet_002ebase64encode"><span><code class="def-type"><var class="var">b64_str</var> =</code> <strong class="def-name">matlab.net.base64encode</strong> <code class="def-code-arguments">(<var class="var">in</var>)</code><a class="copiable-link" href="#index-matlab_002enet_002ebase64encode"> ¶</a></span></dt>
<dd>
<p>Convert <var class="var">in</var> to a base64 encoded string <var class="var">b64_str</var>.
</p>
<p>The input <var class="var">in</var> can be a string or numeric vector.
The output <var class="var">b64_str</var> will be encoded according to RFC 4648.
</p>
<p><strong class="strong">See also:</strong> <a class="ref" href="#XREFmatlab_005fnet_005fbase64decode">matlab.net.base64decode</a>, <a class="ref" href="#XREFbase64_005fdecode">base64_decode</a>, <a class="ref" href="#XREFbase64_005fencode">base64_encode</a>, <a class="ref" href="String-encoding.html#XREFunicode2native">unicode2native</a>.
</p></dd></dl>
<a class="anchor" id="XREFmatlab_005fnet_005fbase64decode"></a><span style="display:block; margin-top:-4.5ex;"> </span>
<dl class="first-deftypefn">
<dt class="deftypefn" id="index-matlab_002enet_002ebase64decode"><span><code class="def-type"><var class="var">out_vec</var> =</code> <strong class="def-name">matlab.net.base64decode</strong> <code class="def-code-arguments">(<var class="var">b64_str</var>)</code><a class="copiable-link" href="#index-matlab_002enet_002ebase64decode"> ¶</a></span></dt>
<dd>
<p>Convert base64 encoded <var class="var">b64_str</var> to uint8 vector <var class="var">out_vec</var>.
</p>
<p>The input <var class="var">b64_str</var> must be a string vector.
The output <var class="var">out_vec</var> will be a uint8 vector that is decoded
according to RFC 4648.
</p>
<p><strong class="strong">See also:</strong> <a class="ref" href="#XREFmatlab_005fnet_005fbase64encode">matlab.net.base64encode</a>, <a class="ref" href="#XREFbase64_005fdecode">base64_decode</a>, <a class="ref" href="#XREFbase64_005fencode">base64_encode</a>, <a class="ref" href="String-encoding.html#XREFnative2unicode">native2unicode</a>.
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