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<div class="header">
  <div class="summary">
<a href="#pub-attribs">Data Fields</a>  </div>
  <div class="headertitle">
<div class="title">AVDownmixInfo Struct Reference<div class="ingroups"><a class="el" href="group__lavu.html">libavutil</a> &raquo; <a class="el" href="group__lavu__audio.html">Audio related</a> &raquo; <a class="el" href="group__downmix__info.html">Audio downmix metadata</a></div></div>  </div>
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<p>This structure describes optional metadata relevant to a downmix procedure.  
 <a href="structAVDownmixInfo.html#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="downmix__info_8h_source.html">libavutil/downmix_info.h</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Data Fields</h2></td></tr>
<tr class="memitem:aca0497b3d08ecb717c349c2bcc946038"><td class="memItemLeft" align="right" valign="top">enum <a class="el" href="group__downmix__info.html#ga3e3654fedbe3e5485f00ea09396c3521">AVDownmixType</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structAVDownmixInfo.html#aca0497b3d08ecb717c349c2bcc946038">preferred_downmix_type</a></td></tr>
<tr class="memdesc:aca0497b3d08ecb717c349c2bcc946038"><td class="mdescLeft">&#160;</td><td class="mdescRight">Type of downmix preferred by the mastering engineer.  <a href="#aca0497b3d08ecb717c349c2bcc946038">More...</a><br /></td></tr>
<tr class="separator:aca0497b3d08ecb717c349c2bcc946038"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac895caaffbfe271f3b710453a5e4db52"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structAVDownmixInfo.html#ac895caaffbfe271f3b710453a5e4db52">center_mix_level</a></td></tr>
<tr class="memdesc:ac895caaffbfe271f3b710453a5e4db52"><td class="mdescLeft">&#160;</td><td class="mdescRight">Absolute scale factor representing the nominal level of the center channel during a regular downmix.  <a href="#ac895caaffbfe271f3b710453a5e4db52">More...</a><br /></td></tr>
<tr class="separator:ac895caaffbfe271f3b710453a5e4db52"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:afe5bab2b99df66c400d53acef4e67ab7"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structAVDownmixInfo.html#afe5bab2b99df66c400d53acef4e67ab7">center_mix_level_ltrt</a></td></tr>
<tr class="memdesc:afe5bab2b99df66c400d53acef4e67ab7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Absolute scale factor representing the nominal level of the center channel during an Lt/Rt compatible downmix.  <a href="#afe5bab2b99df66c400d53acef4e67ab7">More...</a><br /></td></tr>
<tr class="separator:afe5bab2b99df66c400d53acef4e67ab7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a763db6d7fd875324fff1c1cd124ac21f"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structAVDownmixInfo.html#a763db6d7fd875324fff1c1cd124ac21f">surround_mix_level</a></td></tr>
<tr class="memdesc:a763db6d7fd875324fff1c1cd124ac21f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Absolute scale factor representing the nominal level of the surround channels during a regular downmix.  <a href="#a763db6d7fd875324fff1c1cd124ac21f">More...</a><br /></td></tr>
<tr class="separator:a763db6d7fd875324fff1c1cd124ac21f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a460f7ab05d6c71112f2282aeb4009445"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structAVDownmixInfo.html#a460f7ab05d6c71112f2282aeb4009445">surround_mix_level_ltrt</a></td></tr>
<tr class="memdesc:a460f7ab05d6c71112f2282aeb4009445"><td class="mdescLeft">&#160;</td><td class="mdescRight">Absolute scale factor representing the nominal level of the surround channels during an Lt/Rt compatible downmix.  <a href="#a460f7ab05d6c71112f2282aeb4009445">More...</a><br /></td></tr>
<tr class="separator:a460f7ab05d6c71112f2282aeb4009445"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a070b6f29f4a4d272894d60d678a13a03"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structAVDownmixInfo.html#a070b6f29f4a4d272894d60d678a13a03">lfe_mix_level</a></td></tr>
<tr class="memdesc:a070b6f29f4a4d272894d60d678a13a03"><td class="mdescLeft">&#160;</td><td class="mdescRight">Absolute scale factor representing the level at which the LFE data is mixed into L/R channels during downmixing.  <a href="#a070b6f29f4a4d272894d60d678a13a03">More...</a><br /></td></tr>
<tr class="separator:a070b6f29f4a4d272894d60d678a13a03"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>This structure describes optional metadata relevant to a downmix procedure. </p>
<p>All fields are set by the decoder to the value indicated in the audio bitstream (if present), or to a "sane" default otherwise. </p>

<p class="definition">Definition at line <a class="el" href="downmix__info_8h_source.html#l00058">58</a> of file <a class="el" href="downmix__info_8h_source.html">downmix_info.h</a>.</p>
</div><h2 class="groupheader">Field Documentation</h2>
<a id="aca0497b3d08ecb717c349c2bcc946038"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aca0497b3d08ecb717c349c2bcc946038">&#9670;&nbsp;</a></span>preferred_downmix_type</h2>

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          <td class="memname">enum <a class="el" href="group__downmix__info.html#ga3e3654fedbe3e5485f00ea09396c3521">AVDownmixType</a> AVDownmixInfo::preferred_downmix_type</td>
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<p>Type of downmix preferred by the mastering engineer. </p>

<p class="definition">Definition at line <a class="el" href="downmix__info_8h_source.html#l00062">62</a> of file <a class="el" href="downmix__info_8h_source.html">downmix_info.h</a>.</p>

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<a id="ac895caaffbfe271f3b710453a5e4db52"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac895caaffbfe271f3b710453a5e4db52">&#9670;&nbsp;</a></span>center_mix_level</h2>

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          <td class="memname">double AVDownmixInfo::center_mix_level</td>
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<p>Absolute scale factor representing the nominal level of the center channel during a regular downmix. </p>

<p class="definition">Definition at line <a class="el" href="downmix__info_8h_source.html#l00068">68</a> of file <a class="el" href="downmix__info_8h_source.html">downmix_info.h</a>.</p>

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<a id="afe5bab2b99df66c400d53acef4e67ab7"></a>
<h2 class="memtitle"><span class="permalink"><a href="#afe5bab2b99df66c400d53acef4e67ab7">&#9670;&nbsp;</a></span>center_mix_level_ltrt</h2>

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          <td class="memname">double AVDownmixInfo::center_mix_level_ltrt</td>
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<p>Absolute scale factor representing the nominal level of the center channel during an Lt/Rt compatible downmix. </p>

<p class="definition">Definition at line <a class="el" href="downmix__info_8h_source.html#l00074">74</a> of file <a class="el" href="downmix__info_8h_source.html">downmix_info.h</a>.</p>

</div>
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<a id="a763db6d7fd875324fff1c1cd124ac21f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a763db6d7fd875324fff1c1cd124ac21f">&#9670;&nbsp;</a></span>surround_mix_level</h2>

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          <td class="memname">double AVDownmixInfo::surround_mix_level</td>
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<p>Absolute scale factor representing the nominal level of the surround channels during a regular downmix. </p>

<p class="definition">Definition at line <a class="el" href="downmix__info_8h_source.html#l00080">80</a> of file <a class="el" href="downmix__info_8h_source.html">downmix_info.h</a>.</p>

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<a id="a460f7ab05d6c71112f2282aeb4009445"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a460f7ab05d6c71112f2282aeb4009445">&#9670;&nbsp;</a></span>surround_mix_level_ltrt</h2>

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          <td class="memname">double AVDownmixInfo::surround_mix_level_ltrt</td>
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<p>Absolute scale factor representing the nominal level of the surround channels during an Lt/Rt compatible downmix. </p>

<p class="definition">Definition at line <a class="el" href="downmix__info_8h_source.html#l00086">86</a> of file <a class="el" href="downmix__info_8h_source.html">downmix_info.h</a>.</p>

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<a id="a070b6f29f4a4d272894d60d678a13a03"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a070b6f29f4a4d272894d60d678a13a03">&#9670;&nbsp;</a></span>lfe_mix_level</h2>

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          <td class="memname">double AVDownmixInfo::lfe_mix_level</td>
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<p>Absolute scale factor representing the level at which the LFE data is mixed into L/R channels during downmixing. </p>

<p class="definition">Definition at line <a class="el" href="downmix__info_8h_source.html#l00092">92</a> of file <a class="el" href="downmix__info_8h_source.html">downmix_info.h</a>.</p>

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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>libavutil/<a class="el" href="downmix__info_8h_source.html">downmix_info.h</a></li>
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