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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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+<!-- Created by , GNU Texinfo 7.1.1 -->
+  <head>
+    <meta charset="utf-8">
+    <title>
+      Libswresample Documentation
+    </title>
+    <meta name="viewport" content="width=device-width,initial-scale=1.0">
+    <link rel="stylesheet" type="text/css" href="bootstrap.min.css">
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+  <body>
+    <div class="container">
+      <h1>
+      Libswresample Documentation
+      </h1>
+
+
+<a name="SEC_Top"></a>
+
+<div class="element-contents" id="SEC_Contents">
+<h2 class="contents-heading">Table of Contents</h2>
+
+<div class="contents">
+
+<ul class="toc-numbered-mark">
+  <li><a id="toc-Description" href="#Description">1 Description</a></li>
+  <li><a id="toc-See-Also" href="#See-Also">2 See Also</a></li>
+  <li><a id="toc-Authors" href="#Authors">3 Authors</a></li>
+</ul>
+</div>
+</div>
+
+<a name="Description"></a>
+<h2 class="chapter">1 Description<span class="pull-right"><a class="anchor hidden-xs" href="#Description" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Description" aria-hidden="true">TOC</a></span></h2>
+
+<p>The libswresample library performs highly optimized audio resampling,
+rematrixing and sample format conversion operations.
+</p>
+<p>Specifically, this library performs the following conversions:
+</p>
+<ul class="itemize mark-bullet">
+<li><em class="emph">Resampling</em>: is the process of changing the audio rate, for
+example from a high sample rate of 44100Hz to 8000Hz. Audio
+conversion from high to low sample rate is a lossy process. Several
+resampling options and algorithms are available.
+
+</li><li><em class="emph">Format conversion</em>: is the process of converting the type of
+samples, for example from 16-bit signed samples to unsigned 8-bit or
+float samples. It also handles packing conversion, when passing from
+packed layout (all samples belonging to distinct channels interleaved
+in the same buffer), to planar layout (all samples belonging to the
+same channel stored in a dedicated buffer or &quot;plane&quot;).
+
+</li><li><em class="emph">Rematrixing</em>: is the process of changing the channel layout, for
+example from stereo to mono. When the input channels cannot be mapped
+to the output streams, the process is lossy, since it involves
+different gain factors and mixing.
+</li></ul>
+
+<p>Various other audio conversions (e.g. stretching and padding) are
+enabled through dedicated options.
+</p>
+
+<a name="See-Also"></a>
+<h2 class="chapter">2 See Also<span class="pull-right"><a class="anchor hidden-xs" href="#See-Also" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-See-Also" aria-hidden="true">TOC</a></span></h2>
+
+<p><a class="url" href="ffmpeg.html">ffmpeg</a>, <a class="url" href="ffplay.html">ffplay</a>, <a class="url" href="ffprobe.html">ffprobe</a>,
+<a class="url" href="ffmpeg-resampler.html">ffmpeg-resampler</a>,
+<a class="url" href="libavutil.html">libavutil</a>
+</p>
+
+<a name="Authors"></a>
+<h2 class="chapter">3 Authors<span class="pull-right"><a class="anchor hidden-xs" href="#Authors" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Authors" aria-hidden="true">TOC</a></span></h2>
+
+<p>The FFmpeg developers.
+</p>
+<p>For details about the authorship, see the Git history of the project
+(https://git.ffmpeg.org/ffmpeg), e.g. by typing the command
+<code class="command">git log</code> in the FFmpeg source directory, or browsing the
+online repository at <a class="url" href="https://git.ffmpeg.org/ffmpeg">https://git.ffmpeg.org/ffmpeg</a>.
+</p>
+<p>Maintainers for the specific components are listed in the file
+<samp class="file">MAINTAINERS</samp> in the source code tree.
+</p>
+
+      <p style="font-size: small;">
+        This document was generated using <a class="uref" href="https://www.gnu.org/software/texinfo/"><em class="emph">makeinfo</em></a>.
+      </p>
+    </div>
+  </body>
+</html>