100 lines
3.1 KiB
HTML
100 lines
3.1 KiB
HTML
<!DOCTYPE html>
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<html>
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<!-- Created by GNU Texinfo 7.0.1, https://www.gnu.org/software/texinfo/ -->
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<title>Libswscale Documentation</title>
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<meta name="description" content="Libswscale Documentation">
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<meta name="keywords" content="Libswscale Documentation">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta name="viewport" content="width=device-width,initial-scale=1">
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<link href="#SEC_Contents" rel="contents" title="Table of Contents">
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<style type="text/css">
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ul.mark-bullet {list-style-type: disc}
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ul.toc-numbered-mark {list-style: none}
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-->
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</style>
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</head>
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<body lang="en">
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<div class="top-level-extent" id="SEC_Top">
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<div class="element-contents" id="SEC_Contents">
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<h2 class="contents-heading">Table of Contents</h2>
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<div class="contents">
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<ul class="toc-numbered-mark">
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<li><a id="toc-Description" href="#Description">1 Description</a></li>
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<li><a id="toc-See-Also" href="#See-Also">2 See Also</a></li>
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<li><a id="toc-Authors" href="#Authors">3 Authors</a></li>
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</ul>
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</div>
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</div>
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<div class="chapter-level-extent" id="Description">
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<h2 class="chapter">1 Description</h2>
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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 class="itemize mark-bullet">
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<li><em class="emph">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><em class="emph">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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</div>
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<div class="chapter-level-extent" id="See-Also">
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<h2 class="chapter">2 See Also</h2>
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<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>,
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<a class="url" href="ffmpeg-scaler.html">ffmpeg-scaler</a>,
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<a class="url" href="libavutil.html">libavutil</a>
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</p>
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</div>
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<div class="chapter-level-extent" id="Authors">
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<h2 class="chapter">3 Authors</h2>
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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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(https://git.ffmpeg.org/ffmpeg), e.g. by typing the command
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<code class="command">git log</code> in the FFmpeg source directory, or browsing the
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online repository at <a class="url" href="https://git.ffmpeg.org/ffmpeg">https://git.ffmpeg.org/ffmpeg</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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<samp class="file">MAINTAINERS</samp> in the source code tree.
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</p>
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</div>
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</div>
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</body>
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</html>
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