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<title>Libswscale Documentation</title> |
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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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<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>Specifically, this library performs the following conversions: |
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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 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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<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>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>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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