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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>V4L2_PIX_FMT_YUYV ('YUYV')</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="LINUX MEDIA INFRASTRUCTURE API" /><link rel="up" href="ch02s05.html" title="YUV Formats" /><link rel="prev" href="re08.html" title="V4L2_PIX_FMT_Y16 ('Y16 ')" /><link rel="next" href="re10.html" title="V4L2_PIX_FMT_UYVY ('UYVY')" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">V4L2_PIX_FMT_YUYV ('YUYV')</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re08.html">Prev</a> </td><th width="60%" align="center">YUV Formats</th><td width="20%" align="right"> <a accesskey="n" href="re10.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="V4L2_PIX_FMT_YUYV ('YUYV')"><a id="V4L2-PIX-FMT-YUYV"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p><code class="constant">V4L2_PIX_FMT_YUYV</code> — Packed format with ½ horizontal chroma
resolution, also known as YUV 4:2:2</p></div><div class="refsect1" title="Description"><a id="id2617111"></a><h2>Description</h2><p>In this format each four bytes is two pixels. Each four
bytes is two Y's, a Cb and a Cr. Each Y goes to one of the pixels, and
the Cb and Cr belong to both pixels. As you can see, the Cr and Cb
components have half the horizontal resolution of the Y component.
<code class="constant">V4L2_PIX_FMT_YUYV </code> is known in the Windows
environment as YUY2.</p><div class="example"><a id="id2616845"></a><p class="title"><b>Example 2.9. <code class="constant">V4L2_PIX_FMT_YUYV</code> 4 × 4
pixel image</b></p><div class="example-contents"><p title="Byte Order."><b>Byte Order. </b>Each cell is one byte.
</p><div class="informaltable"><table border="0"><colgroup><col align="left" /><col /><col /><col /><col /><col /><col /><col /><col /></colgroup><tbody valign="top"><tr><td align="left" valign="top">start + 0:</td><td align="center" valign="top">Y'<sub>00</sub></td><td align="center" valign="top">Cb<sub>00</sub></td><td align="center" valign="top">Y'<sub>01</sub></td><td align="center" valign="top">Cr<sub>00</sub></td><td align="center" valign="top">Y'<sub>02</sub></td><td align="center" valign="top">Cb<sub>01</sub></td><td align="center" valign="top">Y'<sub>03</sub></td><td align="center" valign="top">Cr<sub>01</sub></td></tr><tr><td align="left" valign="top">start + 8:</td><td align="center" valign="top">Y'<sub>10</sub></td><td align="center" valign="top">Cb<sub>10</sub></td><td align="center" valign="top">Y'<sub>11</sub></td><td align="center" valign="top">Cr<sub>10</sub></td><td align="center" valign="top">Y'<sub>12</sub></td><td align="center" valign="top">Cb<sub>11</sub></td><td align="center" valign="top">Y'<sub>13</sub></td><td align="center" valign="top">Cr<sub>11</sub></td></tr><tr><td align="left" valign="top">start + 16:</td><td align="center" valign="top">Y'<sub>20</sub></td><td align="center" valign="top">Cb<sub>20</sub></td><td align="center" valign="top">Y'<sub>21</sub></td><td align="center" valign="top">Cr<sub>20</sub></td><td align="center" valign="top">Y'<sub>22</sub></td><td align="center" valign="top">Cb<sub>21</sub></td><td align="center" valign="top">Y'<sub>23</sub></td><td align="center" valign="top">Cr<sub>21</sub></td></tr><tr><td align="left" valign="top">start + 24:</td><td align="center" valign="top">Y'<sub>30</sub></td><td align="center" valign="top">Cb<sub>30</sub></td><td align="center" valign="top">Y'<sub>31</sub></td><td align="center" valign="top">Cr<sub>30</sub></td><td align="center" valign="top">Y'<sub>32</sub></td><td align="center" valign="top">Cb<sub>31</sub></td><td align="center" valign="top">Y'<sub>33</sub></td><td align="center" valign="top">Cr<sub>31</sub></td></tr></tbody></table></div><p title="Byte Order.">
</p><p title="Color Sample Location."><b>Color Sample Location. </b>
</p><div class="informaltable"><table border="0"><colgroup><col /><col /><col /><col /><col /><col /><col /></colgroup><tbody valign="top"><tr><td align="center" valign="top"> </td><td align="center" valign="top">0</td><td align="center" valign="top"> </td><td align="center" valign="top">1</td><td align="center" valign="top"> </td><td align="center" valign="top">2</td><td align="center" valign="top"> </td><td align="center" valign="top">3</td></tr><tr><td align="center" valign="top">0</td><td align="center" valign="top">Y</td><td align="center" valign="top">C</td><td align="center" valign="top">Y</td><td align="center" valign="top"> </td><td align="center" valign="top">Y</td><td align="center" valign="top">C</td><td align="center" valign="top">Y</td></tr><tr><td align="center" valign="top">1</td><td align="center" valign="top">Y</td><td align="center" valign="top">C</td><td align="center" valign="top">Y</td><td align="center" valign="top"> </td><td align="center" valign="top">Y</td><td align="center" valign="top">C</td><td align="center" valign="top">Y</td></tr><tr><td align="center" valign="top">2</td><td align="center" valign="top">Y</td><td align="center" valign="top">C</td><td align="center" valign="top">Y</td><td align="center" valign="top"> </td><td align="center" valign="top">Y</td><td align="center" valign="top">C</td><td align="center" valign="top">Y</td></tr><tr><td align="center" valign="top">3</td><td align="center" valign="top">Y</td><td align="center" valign="top">C</td><td align="center" valign="top">Y</td><td align="center" valign="top"> </td><td align="center" valign="top">Y</td><td align="center" valign="top">C</td><td align="center" valign="top">Y</td></tr></tbody></table></div><p title="Color Sample Location.">
</p></div></div><br class="example-break" /></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="re08.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch02s05.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="re10.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">V4L2_PIX_FMT_Y16 ('Y16 ') </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> V4L2_PIX_FMT_UYVY ('UYVY')</td></tr></table></div></body></html>
