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100 lines
3.2 KiB
100 lines
3.2 KiB
5 years ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<title>FFmpeg documentation</title>
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<link rel="stylesheet" href="bootstrap.min.css" />
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<link rel="stylesheet" href="style.min.css" />
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<meta name="description" content="Libswscale Documentation: ">
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<meta name="keywords" content="FFmpeg documentation : Libswscale ">
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<meta name="Generator" content="texi2html 5.0">
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<!-- Created on July 3, 2018 by texi2html 5.0 -->
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<!--
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texi2html was written by:
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Lionel Cons <Lionel.Cons@cern.ch> (original author)
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Karl Berry <karl@freefriends.org>
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Olaf Bachmann <obachman@mathematik.uni-kl.de>
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and many others.
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Maintained by: Many creative people.
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Send bugs and suggestions to <texi2html-bug@nongnu.org>
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-->
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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</head>
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<body>
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<div class="container">
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<h1 class="titlefont">Libswscale Documentation</h1>
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<hr>
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<a name="SEC_Top"></a>
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<a name="SEC_Contents"></a>
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<h1>Table of Contents</h1>
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<div class="contents">
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<ul class="no-bullet">
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<li><a name="toc-Description" href="#Description">1 Description</a></li>
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<li><a name="toc-See-Also" href="#See-Also">2 See Also</a></li>
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<li><a name="toc-Authors" href="#Authors">3 Authors</a></li>
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</ul>
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</div>
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<hr size="6">
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<a name="Description"></a>
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<h1 class="chapter"><a href="libswscale.html#toc-Description">1 Description</a></h1>
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<p>The libswscale library performs highly optimized image scaling and
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colorspace and pixel format conversion operations.
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</p>
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<p>Specifically, this library performs the following conversions:
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</p>
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<ul>
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<li>
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<em>Rescaling</em>: is the process of changing the video size. Several
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rescaling options and algorithms are available. This is usually a
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lossy process.
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</li><li>
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<em>Pixel format conversion</em>: is the process of converting the image
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format and colorspace of the image, for example from planar YUV420P to
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RGB24 packed. It also handles packing conversion, that is converts
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from packed layout (all pixels belonging to distinct planes
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interleaved in the same buffer), to planar layout (all samples
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belonging to the same plane stored in a dedicated buffer or "plane").
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<p>This is usually a lossy process in case the source and destination
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colorspaces differ.
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</p></li></ul>
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<a name="See-Also"></a>
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<h1 class="chapter"><a href="libswscale.html#toc-See-Also">2 See Also</a></h1>
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<p><a href="ffmpeg.html">ffmpeg</a>, <a href="ffplay.html">ffplay</a>, <a href="ffprobe.html">ffprobe</a>,
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<a href="ffmpeg-scaler.html">ffmpeg-scaler</a>,
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<a href="libavutil.html">libavutil</a>
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</p>
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<a name="Authors"></a>
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<h1 class="chapter"><a href="libswscale.html#toc-Authors">3 Authors</a></h1>
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<p>The FFmpeg developers.
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</p>
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<p>For details about the authorship, see the Git history of the project
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(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
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<code>git log</code> in the FFmpeg source directory, or browsing the
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online repository at <a href="http://source.ffmpeg.org">http://source.ffmpeg.org</a>.
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</p>
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<p>Maintainers for the specific components are listed in the file
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‘<tt>MAINTAINERS</tt>’ in the source code tree.
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</p>
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</div>
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</body>
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</html>
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