<!-- This comment will put IE 6, 7 and 8 in quirks mode --> <!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"/> <title>ALSA project - the C library reference: Format Mask Functions</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javaScript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body onload='searchBox.OnSelectItem(0);'> <!-- Generated by Doxygen 1.6.2-20100208 --> <script type="text/javascript"><!-- var searchBox = new SearchBox("searchBox", "search",false,'Search'); --></script> <div class="navigation" id="top"> <div class="tabs"> <ul> <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><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"> <img id="MSearchSelect" src="search/search.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)"/> <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a> </div> </li> </ul> </div> </div> <div class="contents"> <h1>Format Mask Functions<br/> <small> [<a class="el" href="group___p_c_m.html">PCM Interface</a>]</small> </h1><table border="0" cellpadding="0" cellspacing="0"> <tr><td colspan="2"><h2>Defines</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___format.html#gadee8697e8c4f7fc018603fbcbd0a4b31">snd_pcm_format_mask_alloca</a>(ptr)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">allocate an empty <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> using standard alloca <a href="#gadee8697e8c4f7fc018603fbcbd0a4b31"></a><br/></td></tr> <tr><td colspan="2"><h2>Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___format.html#gaf260158e21491d2dfff62aa2b2ff06d1">snd_pcm_format_mask_sizeof</a> (void)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">get size of <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> <a href="#gaf260158e21491d2dfff62aa2b2ff06d1"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___format.html#gace20f58f4a93c39b006fd13bfd642da5">snd_pcm_format_mask_malloc</a> (<a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> **ptr)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">allocate an empty <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> using standard malloc <a href="#gace20f58f4a93c39b006fd13bfd642da5"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___format.html#ga3a8b2f75bcf9e2b33602297123a6f3b9">snd_pcm_format_mask_free</a> (<a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> *obj)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">frees a previously allocated <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> <a href="#ga3a8b2f75bcf9e2b33602297123a6f3b9"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___format.html#ga5fa45349fe88454faac051f476629174">snd_pcm_format_mask_copy</a> (<a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> *dst, const <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> *src)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">copy one <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> to another <a href="#ga5fa45349fe88454faac051f476629174"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___format.html#ga42342f7e5dd7c1c8401482d8db9c1013">snd_pcm_format_mask_none</a> (<a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> *mask)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">reset all bits in a <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> <a href="#ga42342f7e5dd7c1c8401482d8db9c1013"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___format.html#ga56f394e000ea4aadf73d1fb97fd994cd">snd_pcm_format_mask_any</a> (<a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> *mask)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">set all bits in a <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> <a href="#ga56f394e000ea4aadf73d1fb97fd994cd"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___format.html#gaecb1d19be63a1b18456300eb4d07a8a0">snd_pcm_format_mask_test</a> (const <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> *mask, <a class="el" href="group___p_c_m.html#gaa14b7f26877a812acbb39811364177f8">snd_pcm_format_t</a> val)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">test the presence of a format in a <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> <a href="#gaecb1d19be63a1b18456300eb4d07a8a0"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___format.html#gaa942122189c757a1178749cebeb73d48">snd_pcm_format_mask_empty</a> (const <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> *mask)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">test, if given a <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> is empty <a href="#gaa942122189c757a1178749cebeb73d48"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___format.html#ga03fa8dcc8da3dbecc164143b43d40056">snd_pcm_format_mask_set</a> (<a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> *mask, <a class="el" href="group___p_c_m.html#gaa14b7f26877a812acbb39811364177f8">snd_pcm_format_t</a> val)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">make a format present in a <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> <a href="#ga03fa8dcc8da3dbecc164143b43d40056"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___format.html#ga60cdd13f69735c11cfaa0856b0f25a3e">snd_pcm_format_mask_reset</a> (<a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> *mask, <a class="el" href="group___p_c_m.html#gaa14b7f26877a812acbb39811364177f8">snd_pcm_format_t</a> val)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">make a format missing from a <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> <a href="#ga60cdd13f69735c11cfaa0856b0f25a3e"></a><br/></td></tr> </table> <hr/><a name="_details"></a><h2>Detailed Description</h2> <p>See the <a class="el" href="pcm.html">PCM (digital audio) interface</a> page for more details. </p> <hr/><h2>Define Documentation</h2> <a class="anchor" id="gadee8697e8c4f7fc018603fbcbd0a4b31"></a><!-- doxytag: member="pcm.h::snd_pcm_format_mask_alloca" ref="gadee8697e8c4f7fc018603fbcbd0a4b31" args="(ptr)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">#define snd_pcm_format_mask_alloca</td> <td>(</td> <td class="paramtype">ptr </td> <td class="paramname"></td> <td> ) </td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>allocate an empty <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> using standard alloca </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>ptr</em> </td><td>returned pointer </td></tr> </table> </dd> </dl> </div> </div> <hr/><h2>Function Documentation</h2> <a class="anchor" id="ga56f394e000ea4aadf73d1fb97fd994cd"></a><!-- doxytag: member="pcm.h::snd_pcm_format_mask_any" ref="ga56f394e000ea4aadf73d1fb97fd994cd" args="(snd_pcm_format_mask_t *mask)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void snd_pcm_format_mask_any </td> <td>(</td> <td class="paramtype"><a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> * </td> <td class="paramname"> <em>mask</em></td> <td> ) </td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>set all bits in a <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>mask</em> </td><td>pointer to mask </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="ga5fa45349fe88454faac051f476629174"></a><!-- doxytag: member="pcm.h::snd_pcm_format_mask_copy" ref="ga5fa45349fe88454faac051f476629174" args="(snd_pcm_format_mask_t *dst, const snd_pcm_format_mask_t *src)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void snd_pcm_format_mask_copy </td> <td>(</td> <td class="paramtype"><a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> * </td> <td class="paramname"> <em>dst</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> * </td> <td class="paramname"> <em>src</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>copy one <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> to another </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>dst</em> </td><td>pointer to destination </td></tr> <tr><td valign="top"></td><td valign="top"><em>src</em> </td><td>pointer to source </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="gaa942122189c757a1178749cebeb73d48"></a><!-- doxytag: member="pcm.h::snd_pcm_format_mask_empty" ref="gaa942122189c757a1178749cebeb73d48" args="(const snd_pcm_format_mask_t *mask)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_pcm_format_mask_empty </td> <td>(</td> <td class="paramtype">const <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> * </td> <td class="paramname"> <em>mask</em></td> <td> ) </td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>test, if given a <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> is empty </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>mask</em> </td><td>pointer to mask </td></tr> </table> </dd> </dl> <dl><dt><b>Return values:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>0</em> </td><td>not empty </td></tr> <tr><td valign="top"></td><td valign="top"><em>1</em> </td><td>empty </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="ga3a8b2f75bcf9e2b33602297123a6f3b9"></a><!-- doxytag: member="pcm.h::snd_pcm_format_mask_free" ref="ga3a8b2f75bcf9e2b33602297123a6f3b9" args="(snd_pcm_format_mask_t *obj)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void snd_pcm_format_mask_free </td> <td>(</td> <td class="paramtype"><a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> * </td> <td class="paramname"> <em>obj</em></td> <td> ) </td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>frees a previously allocated <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>obj</em> </td><td>pointer to object to free </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="gace20f58f4a93c39b006fd13bfd642da5"></a><!-- doxytag: member="pcm.h::snd_pcm_format_mask_malloc" ref="gace20f58f4a93c39b006fd13bfd642da5" args="(snd_pcm_format_mask_t **ptr)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_pcm_format_mask_malloc </td> <td>(</td> <td class="paramtype"><a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> ** </td> <td class="paramname"> <em>ptr</em></td> <td> ) </td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>allocate an empty <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> using standard malloc </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>ptr</em> </td><td>returned pointer </td></tr> </table> </dd> </dl> <dl class="return"><dt><b>Returns:</b></dt><dd>0 on success otherwise negative error code </dd></dl> </div> </div> <a class="anchor" id="ga42342f7e5dd7c1c8401482d8db9c1013"></a><!-- doxytag: member="pcm.h::snd_pcm_format_mask_none" ref="ga42342f7e5dd7c1c8401482d8db9c1013" args="(snd_pcm_format_mask_t *mask)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void snd_pcm_format_mask_none </td> <td>(</td> <td class="paramtype"><a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> * </td> <td class="paramname"> <em>mask</em></td> <td> ) </td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>reset all bits in a <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>mask</em> </td><td>pointer to mask </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="ga60cdd13f69735c11cfaa0856b0f25a3e"></a><!-- doxytag: member="pcm.h::snd_pcm_format_mask_reset" ref="ga60cdd13f69735c11cfaa0856b0f25a3e" args="(snd_pcm_format_mask_t *mask, snd_pcm_format_t val)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void snd_pcm_format_mask_reset </td> <td>(</td> <td class="paramtype"><a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> * </td> <td class="paramname"> <em>mask</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___p_c_m.html#gaa14b7f26877a812acbb39811364177f8">snd_pcm_format_t</a> </td> <td class="paramname"> <em>val</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>make a format missing from a <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>mask</em> </td><td>pointer to mask </td></tr> <tr><td valign="top"></td><td valign="top"><em>val</em> </td><td>format </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="ga03fa8dcc8da3dbecc164143b43d40056"></a><!-- doxytag: member="pcm.h::snd_pcm_format_mask_set" ref="ga03fa8dcc8da3dbecc164143b43d40056" args="(snd_pcm_format_mask_t *mask, snd_pcm_format_t val)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void snd_pcm_format_mask_set </td> <td>(</td> <td class="paramtype"><a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> * </td> <td class="paramname"> <em>mask</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___p_c_m.html#gaa14b7f26877a812acbb39811364177f8">snd_pcm_format_t</a> </td> <td class="paramname"> <em>val</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>make a format present in a <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>mask</em> </td><td>pointer to mask </td></tr> <tr><td valign="top"></td><td valign="top"><em>val</em> </td><td>format </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="gaf260158e21491d2dfff62aa2b2ff06d1"></a><!-- doxytag: member="pcm.h::snd_pcm_format_mask_sizeof" ref="gaf260158e21491d2dfff62aa2b2ff06d1" args="(void)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">size_t snd_pcm_format_mask_sizeof </td> <td>(</td> <td class="paramtype">void </td> <td class="paramname"></td> <td> ) </td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>get size of <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> </p> <dl class="return"><dt><b>Returns:</b></dt><dd>size in bytes </dd></dl> </div> </div> <a class="anchor" id="gaecb1d19be63a1b18456300eb4d07a8a0"></a><!-- doxytag: member="pcm.h::snd_pcm_format_mask_test" ref="gaecb1d19be63a1b18456300eb4d07a8a0" args="(const snd_pcm_format_mask_t *mask, snd_pcm_format_t val)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int snd_pcm_format_mask_test </td> <td>(</td> <td class="paramtype">const <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> * </td> <td class="paramname"> <em>mask</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group___p_c_m.html#gaa14b7f26877a812acbb39811364177f8">snd_pcm_format_t</a> </td> <td class="paramname"> <em>val</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>test the presence of a format in a <a class="el" href="group___p_c_m.html#ga0936aa9ac0051a3611583a2740915545">snd_pcm_format_mask_t</a> </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>mask</em> </td><td>pointer to mask </td></tr> <tr><td valign="top"></td><td valign="top"><em>val</em> </td><td>format </td></tr> </table> </dd> </dl> </div> </div> </div> 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