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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>Packed YUV formats</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="ch02s05.html" title="YUV Formats" /><link rel="next" href="re07.html" title="V4L2_PIX_FMT_GREY ('GREY')" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Packed YUV formats</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch02s05.html">Prev</a> </td><th width="60%" align="center">YUV Formats</th><td width="20%" align="right"> <a accesskey="n" href="re07.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="Packed YUV formats"><a id="packed-yuv"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>Packed YUV formats — Packed YUV formats</p></div><div class="refsect1" title="Description"><a id="id2613523"></a><h2>Description</h2><p>Similar to the packed RGB formats these formats store
the Y, Cb and Cr component of each pixel in one 16 or 32 bit
word.</p><div class="table"><a id="id2613534"></a><p class="title"><b>Table 2.6. Packed YUV Image Formats</b></p><div class="table-contents"><table summary="Packed YUV Image Formats" width="100%" border="0"><colgroup><col align="left" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /></colgroup><thead><tr><th align="left">Identifier</th><th align="center">Code</th><th align="center"> </th><th colspan="8" align="center">Byte 0 in memory</th><td class="auto-generated"> </td><th colspan="8" align="center">Byte 1</th><td class="auto-generated"> </td><th colspan="8" align="center">Byte 2</th><td class="auto-generated"> </td><th colspan="8" align="center">Byte 3</th></tr><tr><th align="left"> </th><th align="center"> </th><th align="center">Bit</th><th align="center">7</th><th align="center">6</th><th align="center">5</th><th align="center">4</th><th align="center">3</th><th align="center">2</th><th align="center">1</th><th align="center">0</th><th align="center"> </th><th align="center">7</th><th align="center">6</th><th align="center">5</th><th align="center">4</th><th align="center">3</th><th align="center">2</th><th align="center">1</th><th align="center">0</th><th align="center"> </th><th align="center">7</th><th align="center">6</th><th align="center">5</th><th align="center">4</th><th align="center">3</th><th align="center">2</th><th align="center">1</th><th align="center">0</th><th align="center"> </th><th align="center">7</th><th align="center">6</th><th align="center">5</th><th align="center">4</th><th align="center">3</th><th align="center">2</th><th align="center">1</th><th align="center">0</th></tr></thead><tbody valign="top"><tr><td align="left" valign="top"><a id="V4L2-PIX-FMT-YUV444"></a><code class="constant">V4L2_PIX_FMT_YUV444</code></td><td align="center" valign="top">'Y444'</td><td align="center" valign="top"> </td><td align="center" valign="top">Cb<sub>3</sub></td><td align="center" valign="top">Cb<sub>2</sub></td><td align="center" valign="top">Cb<sub>1</sub></td><td align="center" valign="top">Cb<sub>0</sub></td><td align="center" valign="top">Cr<sub>3</sub></td><td align="center" valign="top">Cr<sub>2</sub></td><td align="center" valign="top">Cr<sub>1</sub></td><td align="center" valign="top">Cr<sub>0</sub></td><td align="center" valign="top"> </td><td align="center" valign="top">a<sub>3</sub></td><td align="center" valign="top">a<sub>2</sub></td><td align="center" valign="top">a<sub>1</sub></td><td align="center" valign="top">a<sub>0</sub></td><td align="center" valign="top">Y'<sub>3</sub></td><td align="center" valign="top">Y'<sub>2</sub></td><td align="center" valign="top">Y'<sub>1</sub></td><td align="center" valign="top">Y'<sub>0</sub></td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </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"><a id="V4L2-PIX-FMT-YUV555"></a><code class="constant">V4L2_PIX_FMT_YUV555</code></td><td align="center" valign="top">'YUVO'</td><td align="center" valign="top"> </td><td align="center" valign="top">Cb<sub>2</sub></td><td align="center" valign="top">Cb<sub>1</sub></td><td align="center" valign="top">Cb<sub>0</sub></td><td align="center" valign="top">Cr<sub>4</sub></td><td align="center" valign="top">Cr<sub>3</sub></td><td align="center" valign="top">Cr<sub>2</sub></td><td align="center" valign="top">Cr<sub>1</sub></td><td align="center" valign="top">Cr<sub>0</sub></td><td align="center" valign="top"> </td><td align="center" valign="top">a</td><td align="center" valign="top">Y'<sub>4</sub></td><td align="center" valign="top">Y'<sub>3</sub></td><td align="center" valign="top">Y'<sub>2</sub></td><td align="center" valign="top">Y'<sub>1</sub></td><td align="center" valign="top">Y'<sub>0</sub></td><td align="center" valign="top">Cb<sub>4</sub></td><td align="center" valign="top">Cb<sub>3</sub></td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </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"><a id="V4L2-PIX-FMT-YUV565"></a><code class="constant">V4L2_PIX_FMT_YUV565</code></td><td align="center" valign="top">'YUVP'</td><td align="center" valign="top"> </td><td align="center" valign="top">Cb<sub>2</sub></td><td align="center" valign="top">Cb<sub>1</sub></td><td align="center" valign="top">Cb<sub>0</sub></td><td align="center" valign="top">Cr<sub>4</sub></td><td align="center" valign="top">Cr<sub>3</sub></td><td align="center" valign="top">Cr<sub>2</sub></td><td align="center" valign="top">Cr<sub>1</sub></td><td align="center" valign="top">Cr<sub>0</sub></td><td align="center" valign="top"> </td><td align="center" valign="top">Y'<sub>4</sub></td><td align="center" valign="top">Y'<sub>3</sub></td><td align="center" valign="top">Y'<sub>2</sub></td><td align="center" valign="top">Y'<sub>1</sub></td><td align="center" valign="top">Y'<sub>0</sub></td><td align="center" valign="top">Cb<sub>5</sub></td><td align="center" valign="top">Cb<sub>4</sub></td><td align="center" valign="top">Cb<sub>3</sub></td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </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"><a id="V4L2-PIX-FMT-YUV32"></a><code class="constant">V4L2_PIX_FMT_YUV32</code></td><td align="center" valign="top">'YUV4'</td><td align="center" valign="top"> </td><td align="center" valign="top">a<sub>7</sub></td><td align="center" valign="top">a<sub>6</sub></td><td align="center" valign="top">a<sub>5</sub></td><td align="center" valign="top">a<sub>4</sub></td><td align="center" valign="top">a<sub>3</sub></td><td align="center" valign="top">a<sub>2</sub></td><td align="center" valign="top">a<sub>1</sub></td><td align="center" valign="top">a<sub>0</sub></td><td align="center" valign="top"> </td><td align="center" valign="top">Y'<sub>7</sub></td><td align="center" valign="top">Y'<sub>6</sub></td><td align="center" valign="top">Y'<sub>5</sub></td><td align="center" valign="top">Y'<sub>4</sub></td><td align="center" valign="top">Y'<sub>3</sub></td><td align="center" valign="top">Y'<sub>2</sub></td><td align="center" valign="top">Y'<sub>1</sub></td><td align="center" valign="top">Y'<sub>0</sub></td><td align="center" valign="top"> </td><td align="center" valign="top">Cb<sub>7</sub></td><td align="center" valign="top">Cb<sub>6</sub></td><td align="center" valign="top">Cb<sub>5</sub></td><td align="center" valign="top">Cb<sub>4</sub></td><td align="center" valign="top">Cb<sub>3</sub></td><td align="center" valign="top">Cb<sub>2</sub></td><td align="center" valign="top">Cb<sub>1</sub></td><td align="center" valign="top">Cb<sub>0</sub></td><td align="center" valign="top"> </td><td align="center" valign="top">Cr<sub>7</sub></td><td align="center" valign="top">Cr<sub>6</sub></td><td align="center" valign="top">Cr<sub>5</sub></td><td align="center" valign="top">Cr<sub>4</sub></td><td align="center" valign="top">Cr<sub>3</sub></td><td align="center" valign="top">Cr<sub>2</sub></td><td align="center" valign="top">Cr<sub>1</sub></td><td align="center" valign="top">Cr<sub>0</sub></td></tr></tbody></table></div></div><br class="table-break" /><p>Bit 7 is the most significant bit. The value of a = alpha
bits is undefined when reading from the driver, ignored when writing
to the driver, except when alpha blending has been negotiated for a
<a class="link" href="ch04s02.html" title="Video Overlay Interface">Video Overlay</a> or <a class="link" href="ch04s04.html" title="Video Output Overlay Interface">Video Output Overlay</a>.</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch02s05.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="re07.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">YUV Formats </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_GREY ('GREY')</td></tr></table></div></body></html>
