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<div class="title">pcm_route.c File Reference</div> </div>
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<p>PCM Route & Volume Plugin Interface.
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ae19a77e8ec26dc93b8be5a93e7391550"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="pcm__route_8c.html#ae19a77e8ec26dc93b8be5a93e7391550">snd_pcm_route_open</a> (<a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> **pcmp, const char *name, <a class="el" href="group___p_c_m.html#gaa14b7f26877a812acbb39811364177f8">snd_pcm_format_t</a> sformat, int schannels, snd_pcm_route_ttable_entry_t *ttable, unsigned int tt_ssize, unsigned int tt_cused, unsigned int tt_sused, <a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> *slave, int close_slave)</td></tr>
<tr class="memdesc:ae19a77e8ec26dc93b8be5a93e7391550"><td class="mdescLeft"> </td><td class="mdescRight">Creates a new Route & Volume PCM. <a href="pcm__route_8c.html#ae19a77e8ec26dc93b8be5a93e7391550">More...</a><br /></td></tr>
<tr class="separator:ae19a77e8ec26dc93b8be5a93e7391550"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a759ab4e9f1a853e97094e4dc1b835776"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="pcm__route_8c.html#a759ab4e9f1a853e97094e4dc1b835776">snd_pcm_route_determine_ttable</a> (<a class="el" href="group___configuration.html#ga1c20905af775ae77d04d1a5696f67985">snd_config_t</a> *tt, unsigned int *tt_csize, unsigned int *tt_ssize)</td></tr>
<tr class="memdesc:a759ab4e9f1a853e97094e4dc1b835776"><td class="mdescLeft"> </td><td class="mdescRight">Determine route matrix sizes. <a href="pcm__route_8c.html#a759ab4e9f1a853e97094e4dc1b835776">More...</a><br /></td></tr>
<tr class="separator:a759ab4e9f1a853e97094e4dc1b835776"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aba572e5937822f4fc3feab834cdf9348"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="pcm__route_8c.html#aba572e5937822f4fc3feab834cdf9348">snd_pcm_route_load_ttable</a> (<a class="el" href="group___configuration.html#ga1c20905af775ae77d04d1a5696f67985">snd_config_t</a> *tt, snd_pcm_route_ttable_entry_t *ttable, unsigned int tt_csize, unsigned int tt_ssize, unsigned int *tt_cused, unsigned int *tt_sused, int schannels)</td></tr>
<tr class="memdesc:aba572e5937822f4fc3feab834cdf9348"><td class="mdescLeft"> </td><td class="mdescRight">Load route matrix. <a href="pcm__route_8c.html#aba572e5937822f4fc3feab834cdf9348">More...</a><br /></td></tr>
<tr class="separator:aba572e5937822f4fc3feab834cdf9348"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:abee47f3c05e74d83bf2a96559de9a262"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="pcm__route_8c.html#abee47f3c05e74d83bf2a96559de9a262">_snd_pcm_route_open</a> (<a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> **pcmp, const char *name, <a class="el" href="group___configuration.html#ga1c20905af775ae77d04d1a5696f67985">snd_config_t</a> *root, <a class="el" href="group___configuration.html#ga1c20905af775ae77d04d1a5696f67985">snd_config_t</a> *conf, <a class="el" href="group___p_c_m.html#gac23b43ff55add78638e503b9cc892c24">snd_pcm_stream_t</a> stream, int mode)</td></tr>
<tr class="memdesc:abee47f3c05e74d83bf2a96559de9a262"><td class="mdescLeft"> </td><td class="mdescRight">Creates a new Route & Volume PCM. <a href="pcm__route_8c.html#abee47f3c05e74d83bf2a96559de9a262">More...</a><br /></td></tr>
<tr class="separator:abee47f3c05e74d83bf2a96559de9a262"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>PCM Route & Volume Plugin Interface. </p>
<dl class="section author"><dt>Author</dt><dd>Abramo Bagnara <a href="#" onclick="location.href='mai'+'lto:'+'abr'+'am'+'o@a'+'ls'+'a-p'+'ro'+'jec'+'t.'+'org'; return false;">abram<span style="display: none;">.nosp@m.</span>o@al<span style="display: none;">.nosp@m.</span>sa-pr<span style="display: none;">.nosp@m.</span>ojec<span style="display: none;">.nosp@m.</span>t.org</a> </dd></dl>
<dl class="section date"><dt>Date</dt><dd>2000-2001 </dd></dl>
</div><h2 class="groupheader">Function Documentation</h2>
<a id="abee47f3c05e74d83bf2a96559de9a262"></a>
<h2 class="memtitle"><span class="permalink"><a href="#abee47f3c05e74d83bf2a96559de9a262">◆ </a></span>_snd_pcm_route_open()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int _snd_pcm_route_open </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> ** </td>
<td class="paramname"><em>pcmp</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>name</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group___configuration.html#ga1c20905af775ae77d04d1a5696f67985">snd_config_t</a> * </td>
<td class="paramname"><em>root</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group___configuration.html#ga1c20905af775ae77d04d1a5696f67985">snd_config_t</a> * </td>
<td class="paramname"><em>conf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#gac23b43ff55add78638e503b9cc892c24">snd_pcm_stream_t</a> </td>
<td class="paramname"><em>stream</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>mode</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Creates a new Route & Volume PCM. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pcmp</td><td>Returns created PCM handle </td></tr>
<tr><td class="paramname">name</td><td>Name of PCM </td></tr>
<tr><td class="paramname">root</td><td>Root configuration node </td></tr>
<tr><td class="paramname">conf</td><td>Configuration node with Route & Volume PCM description </td></tr>
<tr><td class="paramname">stream</td><td>Stream type </td></tr>
<tr><td class="paramname">mode</td><td>Stream mode </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">zero</td><td>on success otherwise a negative error code </td></tr>
</table>
</dd>
</dl>
<dl class="section warning"><dt>Warning</dt><dd>Using of this function might be dangerous in the sense of compatibility reasons. The prototype might be freely changed in future. </dd></dl>
</div>
</div>
<a id="a759ab4e9f1a853e97094e4dc1b835776"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a759ab4e9f1a853e97094e4dc1b835776">◆ </a></span>snd_pcm_route_determine_ttable()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int snd_pcm_route_determine_ttable </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group___configuration.html#ga1c20905af775ae77d04d1a5696f67985">snd_config_t</a> * </td>
<td class="paramname"><em>tt</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int * </td>
<td class="paramname"><em>tt_csize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int * </td>
<td class="paramname"><em>tt_ssize</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Determine route matrix sizes. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">tt</td><td>Configuration root describing route matrix </td></tr>
<tr><td class="paramname">tt_csize</td><td>Returned client size in elements </td></tr>
<tr><td class="paramname">tt_ssize</td><td>Returned slave size in elements </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">zero</td><td>on success otherwise a negative error code </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="aba572e5937822f4fc3feab834cdf9348"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aba572e5937822f4fc3feab834cdf9348">◆ </a></span>snd_pcm_route_load_ttable()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">int snd_pcm_route_load_ttable </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group___configuration.html#ga1c20905af775ae77d04d1a5696f67985">snd_config_t</a> * </td>
<td class="paramname"><em>tt</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">snd_pcm_route_ttable_entry_t * </td>
<td class="paramname"><em>ttable</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"><em>tt_csize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"><em>tt_ssize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int * </td>
<td class="paramname"><em>tt_cused</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int * </td>
<td class="paramname"><em>tt_sused</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>schannels</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Load route matrix. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">tt</td><td>Configuration root describing route matrix </td></tr>
<tr><td class="paramname">ttable</td><td>Returned route matrix </td></tr>
<tr><td class="paramname">tt_csize</td><td>Client size in elements </td></tr>
<tr><td class="paramname">tt_ssize</td><td>Slave size in elements </td></tr>
<tr><td class="paramname">tt_cused</td><td>Used client elements </td></tr>
<tr><td class="paramname">tt_sused</td><td>Used slave elements </td></tr>
<tr><td class="paramname">schannels</td><td>Slave channels </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">zero</td><td>on success otherwise a negative error code </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="ae19a77e8ec26dc93b8be5a93e7391550"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae19a77e8ec26dc93b8be5a93e7391550">◆ </a></span>snd_pcm_route_open()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int snd_pcm_route_open </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> ** </td>
<td class="paramname"><em>pcmp</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>name</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>sformat</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>schannels</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">snd_pcm_route_ttable_entry_t * </td>
<td class="paramname"><em>ttable</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"><em>tt_ssize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"><em>tt_cused</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"><em>tt_sused</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> * </td>
<td class="paramname"><em>slave</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>close_slave</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Creates a new Route & Volume PCM. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pcmp</td><td>Returns created PCM handle </td></tr>
<tr><td class="paramname">name</td><td>Name of PCM </td></tr>
<tr><td class="paramname">sformat</td><td>Slave format </td></tr>
<tr><td class="paramname">schannels</td><td>Slave channels </td></tr>
<tr><td class="paramname">ttable</td><td>Attenuation table </td></tr>
<tr><td class="paramname">tt_ssize</td><td>Attenuation table - slave size </td></tr>
<tr><td class="paramname">tt_cused</td><td>Attenuation table - client used count </td></tr>
<tr><td class="paramname">tt_sused</td><td>Attenuation table - slave used count </td></tr>
<tr><td class="paramname">slave</td><td>Slave PCM handle </td></tr>
<tr><td class="paramname">close_slave</td><td>When set, the slave PCM handle is closed with copy PCM </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">zero</td><td>on success otherwise a negative error code </td></tr>
</table>
</dd>
</dl>
<dl class="section warning"><dt>Warning</dt><dd>Using of this function might be dangerous in the sense of compatibility reasons. The prototype might be freely changed in future. </dd></dl>
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