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| Libswscale Documentation |
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| Libswscale Documentation |
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| <h2 class="contents-heading">Table of Contents</h2> |
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| <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> |
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| <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> |
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| <p>The libswscale library performs highly optimized image scaling and |
| colorspace and pixel format conversion operations. |
| </p> |
| <p>Specifically, this library performs the following conversions: |
| </p> |
| <ul class="itemize mark-bullet"> |
| <li><em class="emph">Rescaling</em>: is the process of changing the video size. Several |
| rescaling options and algorithms are available. This is usually a |
| lossy process. |
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| </li><li><em class="emph">Pixel format conversion</em>: is the process of converting the image |
| format and colorspace of the image, for example from planar YUV420P to |
| RGB24 packed. It also handles packing conversion, that is converts |
| from packed layout (all pixels belonging to distinct planes |
| interleaved in the same buffer), to planar layout (all samples |
| 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 |
| colorspaces differ. |
| </p></li></ul> |
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| <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> |
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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>, |
| <a class="url" href="ffmpeg-scaler.html">ffmpeg-scaler</a>, |
| <a class="url" href="libavutil.html">libavutil</a> |
| </p> |
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| <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> |
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| <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> |
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| This document was generated using <a class="uref" href="https://www.gnu.org/software/texinfo/"><em class="emph">makeinfo</em></a>. |
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