<?xml version="1.0" encoding="ANSI_X3.4-1968" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>Indexed Format</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="ch02.html" title="Chapter 2. Image Formats" /><link rel="prev" href="ch02s02.html" title="Colorspaces" /><link rel="next" href="ch02s04.html" title="RGB Formats" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Indexed Format</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch02s02.html">Prev</a> </td><th width="60%" align="center">Chapter 2. Image Formats</th><td width="20%" align="right"> <a accesskey="n" href="ch02s04.html">Next</a></td></tr></table><hr /></div><div class="section" title="Indexed Format"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="pixfmt-indexed"></a>Indexed Format</h2></div></div></div><p>In this format each pixel is represented by an 8 bit index into a 256 entry ARGB palette. It is intended for <a class="link" href="ch04s04.html" title="Video Output Overlay Interface">Video Output Overlays</a> only. There are no ioctls to access the palette, this must be done with ioctls of the Linux framebuffer API.</p><div class="table"><a id="id2793074"></a><p class="title"><b>Table 2.3. Indexed Image Format</b></p><div class="table-contents"><table summary="Indexed Image Format" 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 /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /><col /></colgroup><thead><tr><th align="left">Identifier</th><th align="center">Code</th><th align="center"> </th><th colspan="8" align="center">Byte 0</th><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><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><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><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><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></thead><tbody valign="top"><tr><td align="left" valign="top"><a id="V4L2-PIX-FMT-PAL8"></a><code class="constant">V4L2_PIX_FMT_PAL8</code></td><td align="center" valign="top">'PAL8'</td><td align="center" valign="top"> </td><td align="center" valign="top">i<sub>7</sub></td><td align="center" valign="top">i<sub>6</sub></td><td align="center" valign="top">i<sub>5</sub></td><td align="center" valign="top">i<sub>4</sub></td><td align="center" valign="top">i<sub>3</sub></td><td align="center" valign="top">i<sub>2</sub></td><td align="center" valign="top">i<sub>1</sub></td><td align="center" valign="top">i<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><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></tbody></table></div></div><br class="table-break" /></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch02s02.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch02.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ch02s04.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Colorspaces </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> RGB Formats</td></tr></table></div></body></html>
