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<div class="header">
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<a href="#pub-attribs">Public Attributes</a> &#124;
<a href="structSDL__AudioCVT-members.html">List of all members</a>  </div>
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<div class="title">SDL_AudioCVT Struct Reference</div>  </div>
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<p>A structure to hold a set of audio conversion filters and buffers.  
 <a href="structSDL__AudioCVT.html#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="SDL__audio_8h_source.html">SDL_audio.h</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:ac600a035a48df05e14d3712fd6953ad4"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structSDL__AudioCVT.html#ac600a035a48df05e14d3712fd6953ad4">needed</a></td></tr>
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<tr class="memitem:a6ae81231e017105e6d5e745a51732e16"><td class="memItemLeft" align="right" valign="top"><a class="el" href="SDL__audio_8h.html#a491ed103fd25d920c4e6b7495217ce66">SDL_AudioFormat</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structSDL__AudioCVT.html#a6ae81231e017105e6d5e745a51732e16">src_format</a></td></tr>
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<tr class="memitem:a8f890d017be857a3b048bf00525736c6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="SDL__audio_8h.html#a491ed103fd25d920c4e6b7495217ce66">SDL_AudioFormat</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structSDL__AudioCVT.html#a8f890d017be857a3b048bf00525736c6">dst_format</a></td></tr>
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<tr class="memitem:ad886122c23a6673073baace31bff3b6c"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structSDL__AudioCVT.html#ad886122c23a6673073baace31bff3b6c">rate_incr</a></td></tr>
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<tr class="memitem:a080db27b929efa983c5161360ffce310"><td class="memItemLeft" align="right" valign="top">Uint8 *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structSDL__AudioCVT.html#a080db27b929efa983c5161360ffce310">buf</a></td></tr>
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<tr class="memitem:aeaeb8c5a63c3ab96471fbfdf412c78ff"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structSDL__AudioCVT.html#aeaeb8c5a63c3ab96471fbfdf412c78ff">len</a></td></tr>
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<tr class="memitem:ac9662d47cf2348b82b27b151150116b0"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structSDL__AudioCVT.html#ac9662d47cf2348b82b27b151150116b0">len_mult</a></td></tr>
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<tr class="memitem:a5628ff5ccf711de9d77c0a4a9f57d2f0"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structSDL__AudioCVT.html#a5628ff5ccf711de9d77c0a4a9f57d2f0">len_ratio</a></td></tr>
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<tr class="memitem:afeb8dc60716644de3b681653442de1db"><td class="memItemLeft" align="right" valign="top">SDL_AudioFilter&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structSDL__AudioCVT.html#afeb8dc60716644de3b681653442de1db">filters</a> [<a class="el" href="SDL__audio_8h.html#a3d38380ac4a45a68a0e1c1a7a02bd290">SDL_AUDIOCVT_MAX_FILTERS</a>+1]</td></tr>
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<tr class="memitem:a35093b3ad3331c17416c593a76012b63"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structSDL__AudioCVT.html#a35093b3ad3331c17416c593a76012b63">filter_index</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>A structure to hold a set of audio conversion filters and buffers. </p>
<p>Note that various parts of the conversion pipeline can take advantage of SIMD operations (like SSE2, for example). <a class="el" href="structSDL__AudioCVT.html" title="A structure to hold a set of audio conversion filters and buffers.">SDL_AudioCVT</a> doesn't require you to pass it aligned data, but can possibly run much faster if you set both its (buf) field to a pointer that is aligned to 16 bytes, and its (len) field to something that's a multiple of 16, if possible. </p>
</div><h2 class="groupheader">Member Data Documentation</h2>
<a id="a080db27b929efa983c5161360ffce310"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a080db27b929efa983c5161360ffce310">&#9670;&nbsp;</a></span>buf</h2>

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<p>Buffer to hold entire audio data </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a8f890d017be857a3b048bf00525736c6">&#9670;&nbsp;</a></span>dst_format</h2>

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          <td class="memname"><a class="el" href="SDL__audio_8h.html#a491ed103fd25d920c4e6b7495217ce66">SDL_AudioFormat</a> SDL_AudioCVT::dst_format</td>
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<p>Target audio format </p>

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<a id="a35093b3ad3331c17416c593a76012b63"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a35093b3ad3331c17416c593a76012b63">&#9670;&nbsp;</a></span>filter_index</h2>

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<p>Current audio conversion function </p>

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<h2 class="memtitle"><span class="permalink"><a href="#afeb8dc60716644de3b681653442de1db">&#9670;&nbsp;</a></span>filters</h2>

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          <td class="memname">SDL_AudioFilter SDL_AudioCVT::filters[<a class="el" href="SDL__audio_8h.html#a3d38380ac4a45a68a0e1c1a7a02bd290">SDL_AUDIOCVT_MAX_FILTERS</a>+1]</td>
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<p>NULL-terminated list of filter functions </p>

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<a id="aeaeb8c5a63c3ab96471fbfdf412c78ff"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aeaeb8c5a63c3ab96471fbfdf412c78ff">&#9670;&nbsp;</a></span>len</h2>

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<p>Length of original audio buffer </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a5c60163f34d1947e5b166c23aba9879d">&#9670;&nbsp;</a></span>len_cvt</h2>

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<p>Length of converted audio buffer </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ac9662d47cf2348b82b27b151150116b0">&#9670;&nbsp;</a></span>len_mult</h2>

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<p>buffer must be len*len_mult big </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a5628ff5ccf711de9d77c0a4a9f57d2f0">&#9670;&nbsp;</a></span>len_ratio</h2>

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<p>Given len, final size is len*len_ratio </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ac600a035a48df05e14d3712fd6953ad4">&#9670;&nbsp;</a></span>needed</h2>

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<p>Set to 1 if conversion possible </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ad886122c23a6673073baace31bff3b6c">&#9670;&nbsp;</a></span>rate_incr</h2>

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<p>Rate conversion increment </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a6ae81231e017105e6d5e745a51732e16">&#9670;&nbsp;</a></span>src_format</h2>

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          <td class="memname"><a class="el" href="SDL__audio_8h.html#a491ed103fd25d920c4e6b7495217ce66">SDL_AudioFormat</a> SDL_AudioCVT::src_format</td>
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<p>Source audio format </p>

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<hr/>The documentation for this struct was generated from the following file:<ul>
<li><a class="el" href="SDL__audio_8h_source.html">SDL_audio.h</a></li>
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