Why Gemfury?
Push, build, and install
RubyGems
npm packages
Python packages
Maven artifacts
PHP packages
Go Modules
Debian packages
RPM packages
NuGet packages
showbox-public / ffmpeg-doc deb
Repository URL to install this package:
|
Version:
7:2.7.1-1ubuntu3 ▾
|
<!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/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<title>FFmpeg: libavutil/pixelutils.h File Reference</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
$(document).ready(function() { searchBox.OnSelectItem(0); });
</script>
</head>
<body>
<div id="top"><!-- do not remove this div! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td style="padding-left: 0.5em;">
<div id="projectname">FFmpeg
 <span id="projectnumber">2.7.1</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- Generated by Doxygen 1.7.6.1 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="index.html"><span>Main Page</span></a></li>
<li><a href="pages.html"><span>Related Pages</span></a></li>
<li><a href="modules.html"><span>Modules</span></a></li>
<li><a href="annotated.html"><span>Data Structures</span></a></li>
<li class="current"><a href="files.html"><span>Files</span></a></li>
<li><a href="examples.html"><span>Examples</span></a></li>
<li>
<div id="MSearchBox" class="MSearchBoxInactive">
<span class="left">
<img id="MSearchSelect" src="search/mag_sel.png"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
alt=""/>
<input type="text" id="MSearchField" value="Search" accesskey="S"
onfocus="searchBox.OnSearchFieldFocus(true)"
onblur="searchBox.OnSearchFieldFocus(false)"
onkeyup="searchBox.OnSearchFieldChange(event)"/>
</span><span class="right">
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
</span>
</div>
</li>
</ul>
</div>
<div id="navrow2" class="tabs2">
<ul class="tablist">
<li><a href="files.html"><span>File List</span></a></li>
<li><a href="globals.html"><span>Globals</span></a></li>
</ul>
</div>
</div>
<div class="header">
<div class="summary">
<a href="#typedef-members">Typedefs</a> |
<a href="#func-members">Functions</a> </div>
<div class="headertitle">
<div class="title">libavutil/pixelutils.h File Reference</div> </div>
</div><!--header-->
<div class="contents">
<div class="textblock"><code>#include <stddef.h></code><br/>
<code>#include <stdint.h></code><br/>
<code>#include "<a class="el" href="common_8h_source.html">common.h</a>"</code><br/>
</div>
<p><a href="pixelutils_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="pixelutils_8h.html#a54501127dd40702a0edc29c28c4dc7bf">av_pixelutils_sad_fn</a> )(const uint8_t *src1, ptrdiff_t stride1, const uint8_t *src2, ptrdiff_t stride2)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sum of abs(src1[x] - src2[x]) <a href="#a54501127dd40702a0edc29c28c4dc7bf"></a><br/></td></tr>
<tr><td colspan="2"><h2><a name="func-members"></a>
Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="pixelutils_8h.html#a54501127dd40702a0edc29c28c4dc7bf">av_pixelutils_sad_fn</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="pixelutils_8h.html#ace06a5d0938728661c6416babe1ee0a9">av_pixelutils_get_sad_fn</a> (int w_bits, int h_bits, int aligned, void *log_ctx)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get a potentially optimized pointer to a Sum-of-absolute-differences function (see the av_pixelutils_sad_fn prototype). <a href="#ace06a5d0938728661c6416babe1ee0a9"></a><br/></td></tr>
</table>
<hr/><h2>Typedef Documentation</h2>
<a class="anchor" id="a54501127dd40702a0edc29c28c4dc7bf"></a><!-- doxytag: member="pixelutils.h::av_pixelutils_sad_fn" ref="a54501127dd40702a0edc29c28c4dc7bf" args=")(const uint8_t *src1, ptrdiff_t stride1, const uint8_t *src2, ptrdiff_t stride2)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">typedef int(* <a class="el" href="pixelutils_8h.html#a54501127dd40702a0edc29c28c4dc7bf">av_pixelutils_sad_fn</a>)(const uint8_t *src1, ptrdiff_t stride1, const uint8_t *src2, ptrdiff_t stride2)</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Sum of abs(src1[x] - src2[x]) </p>
<p>Definition at line <a class="el" href="pixelutils_8h_source.html#l00029">29</a> of file <a class="el" href="pixelutils_8h_source.html">pixelutils.h</a>.</p>
</div>
</div>
<hr/><h2>Function Documentation</h2>
<a class="anchor" id="ace06a5d0938728661c6416babe1ee0a9"></a><!-- doxytag: member="pixelutils.h::av_pixelutils_get_sad_fn" ref="ace06a5d0938728661c6416babe1ee0a9" args="(int w_bits, int h_bits, int aligned, void *log_ctx)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="pixelutils_8h.html#a54501127dd40702a0edc29c28c4dc7bf">av_pixelutils_sad_fn</a> <a class="el" href="pixelutils_8h.html#ace06a5d0938728661c6416babe1ee0a9">av_pixelutils_get_sad_fn</a> </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>w_bits</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>h_bits</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>aligned</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void * </td>
<td class="paramname"><em>log_ctx</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Get a potentially optimized pointer to a Sum-of-absolute-differences function (see the av_pixelutils_sad_fn prototype). </p>
<dl class="params"><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">w_bits</td><td>1<<w_bits is the requested width of the block size </td></tr>
<tr><td class="paramname">h_bits</td><td>1<<h_bits is the requested height of the block size </td></tr>
<tr><td class="paramname">aligned</td><td>If set to 2, the returned sad function will assume src1 and src2 addresses are aligned on the block size. If set to 1, the returned sad function will assume src1 is aligned on the block size. If set to 0, the returned sad function assume no particular alignment. </td></tr>
<tr><td class="paramname">log_ctx</td><td>context used for logging, can be NULL</td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>a pointer to the SAD function or NULL in case of error (because of invalid parameters) </dd></dl>
</div>
</div>
</div><!-- contents -->
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Data Structures</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </span>Defines</a></div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<hr class="footer"/><address class="footer"><small>
Generated by  <a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.7.6.1
</small></address>
</body>
</html>