1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>V4L2_PIX_FMT_NV24 ('NV24'), V4L2_PIX_FMT_NV42 ('NV42')</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="LINUX MEDIA INFRASTRUCTURE API"><link rel="up" href="yuv-formats.html" title="YUV Formats"><link rel="prev" href="re34.html" title="V4L2_PIX_FMT_NV16M ('NM16'), V4L2_PIX_FMT_NV61M ('NM61')"><link rel="next" href="V4L2-PIX-FMT-M420.html" title="V4L2_PIX_FMT_M420 ('M420')"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">V4L2_PIX_FMT_NV24 ('NV24'), V4L2_PIX_FMT_NV42 ('NV42')</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re34.html">Prev</a> </td><th width="60%" align="center">YUV Formats</th><td width="20%" align="right"> <a accesskey="n" href="V4L2-PIX-FMT-M420.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="idp1102730284"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p><code class="constant">V4L2_PIX_FMT_NV24</code>, <code class="constant">V4L2_PIX_FMT_NV42</code> — Formats with full horizontal and vertical 2chroma resolutions, also known as YUV 4:4:4. One luminance and one 3chrominance plane with alternating chroma samples as opposed to 4<code class="constant">V4L2_PIX_FMT_YVU420</code></p></div><div class="refsect1"><a name="idp1102765412"></a><h2>Description</h2><p>These are two-plane versions of the YUV 4:4:4 format. The three 5 components are separated into two sub-images or planes. The Y plane is 6 first, with each Y sample stored in one byte per pixel. For 7 <code class="constant">V4L2_PIX_FMT_NV24</code>, a combined CbCr plane 8 immediately follows the Y plane in memory. The CbCr plane has the same 9 width and height, in pixels, as the Y plane (and the image). Each line 10 contains one CbCr pair per pixel, with each Cb and Cr sample stored in 11 one byte. <code class="constant">V4L2_PIX_FMT_NV42</code> is the same except that 12 the Cb and Cr samples are swapped, the CrCb plane starts with a Cr 13 sample.</p><p>If the Y plane has pad bytes after each row, then the CbCr plane 14 has twice as many pad bytes after its rows.</p><div class="example"><a name="idp1102807060"></a><p class="title"><b>Example 2.32. <code class="constant">V4L2_PIX_FMT_NV24</code> 4 × 4 15pixel image</b></p><div class="example-contents"><p><b>Byte Order. </b>Each cell is one byte. 16 </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">Y'<sub>01</sub></td><td align="center" valign="top">Y'<sub>02</sub></td><td align="center" valign="top">Y'<sub>03</sub></td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td></tr><tr><td align="left" valign="top">start + 4:</td><td align="center" valign="top">Y'<sub>10</sub></td><td align="center" valign="top">Y'<sub>11</sub></td><td align="center" valign="top">Y'<sub>12</sub></td><td align="center" valign="top">Y'<sub>13</sub></td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td></tr><tr><td align="left" valign="top">start + 8:</td><td align="center" valign="top">Y'<sub>20</sub></td><td align="center" valign="top">Y'<sub>21</sub></td><td align="center" valign="top">Y'<sub>22</sub></td><td align="center" valign="top">Y'<sub>23</sub></td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td></tr><tr><td align="left" valign="top">start + 12:</td><td align="center" valign="top">Y'<sub>30</sub></td><td align="center" valign="top">Y'<sub>31</sub></td><td align="center" valign="top">Y'<sub>32</sub></td><td align="center" valign="top">Y'<sub>33</sub></td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td></tr><tr><td align="left" valign="top">start + 16:</td><td align="center" valign="top">Cb<sub>00</sub></td><td align="center" valign="top">Cr<sub>00</sub></td><td align="center" valign="top">Cb<sub>01</sub></td><td align="center" valign="top">Cr<sub>01</sub></td><td align="center" valign="top">Cb<sub>02</sub></td><td align="center" valign="top">Cr<sub>02</sub></td><td align="center" valign="top">Cb<sub>03</sub></td><td align="center" valign="top">Cr<sub>03</sub></td></tr><tr><td align="left" valign="top">start + 24:</td><td align="center" valign="top">Cb<sub>10</sub></td><td align="center" valign="top">Cr<sub>10</sub></td><td align="center" valign="top">Cb<sub>11</sub></td><td align="center" valign="top">Cr<sub>11</sub></td><td align="center" valign="top">Cb<sub>12</sub></td><td align="center" valign="top">Cr<sub>12</sub></td><td align="center" valign="top">Cb<sub>13</sub></td><td align="center" valign="top">Cr<sub>13</sub></td></tr><tr><td align="left" valign="top">start + 32:</td><td align="center" valign="top">Cb<sub>20</sub></td><td align="center" valign="top">Cr<sub>20</sub></td><td align="center" valign="top">Cb<sub>21</sub></td><td align="center" valign="top">Cr<sub>21</sub></td><td align="center" valign="top">Cb<sub>22</sub></td><td align="center" valign="top">Cr<sub>22</sub></td><td align="center" valign="top">Cb<sub>23</sub></td><td align="center" valign="top">Cr<sub>23</sub></td></tr><tr><td align="left" valign="top">start + 40:</td><td align="center" valign="top">Cb<sub>30</sub></td><td align="center" valign="top">Cr<sub>30</sub></td><td align="center" valign="top">Cb<sub>31</sub></td><td align="center" valign="top">Cr<sub>31</sub></td><td align="center" valign="top">Cb<sub>32</sub></td><td align="center" valign="top">Cr<sub>32</sub></td><td align="center" valign="top">Cb<sub>33</sub></td><td align="center" valign="top">Cr<sub>33</sub></td></tr></tbody></table></div><p> 17 </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="re34.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="yuv-formats.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="V4L2-PIX-FMT-M420.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">V4L2_PIX_FMT_NV16M ('NM16'), V4L2_PIX_FMT_NV61M ('NM61') </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_M420 ('M420')</td></tr></table></div></body></html> 18