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<h1>/home/qateam/rpm/BUILD/alsa-lib-1.0.23/src/pcm/pcm_meter.c File Reference</h1>
<p>Helper functions for <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM scopes.
<a href="#_details">More...</a></p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Functions</h2></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___scope.html#gae37aa1c3ce01063b9047e0bd437ef749">snd_pcm_meter_add_scope</a> (<a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> *pcm, <a class="el" href="group___p_c_m.html#ga3cd150b8aa57e634e1e1dd914940c765">snd_pcm_scope_t</a> *scope)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add a scope to a <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM. <a href="group___p_c_m___scope.html#gae37aa1c3ce01063b9047e0bd437ef749"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___p_c_m.html#ga3cd150b8aa57e634e1e1dd914940c765">snd_pcm_scope_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___scope.html#gabb6cacf50cf10cb6e95853dadd19234f">snd_pcm_meter_search_scope</a> (<a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> *pcm, const char *name)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Search an installed scope inside a <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM. <a href="group___p_c_m___scope.html#gabb6cacf50cf10cb6e95853dadd19234f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___p_c_m.html#gab01fcfe9b97382a8d3f2027c664b8b8a">snd_pcm_uframes_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___scope.html#ga39a4a1f88cd8b5e474d3d1d6f8e3a8ce">snd_pcm_meter_get_bufsize</a> (<a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> *pcm)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get meter buffer size from a <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM. <a href="group___p_c_m___scope.html#ga39a4a1f88cd8b5e474d3d1d6f8e3a8ce"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___scope.html#gaeb0f82c12f8a1e57f4b6b09ad324f3ed">snd_pcm_meter_get_channels</a> (<a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> *pcm)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get meter channels from a <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM. <a href="group___p_c_m___scope.html#gaeb0f82c12f8a1e57f4b6b09ad324f3ed"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___scope.html#ga8c95279cba00918b29671205e38f3e78">snd_pcm_meter_get_rate</a> (<a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> *pcm)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get meter rate from a <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM. <a href="group___p_c_m___scope.html#ga8c95279cba00918b29671205e38f3e78"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___p_c_m.html#gab01fcfe9b97382a8d3f2027c664b8b8a">snd_pcm_uframes_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___scope.html#gaa4929399573ca0e24b71a22b51d7f108">snd_pcm_meter_get_now</a> (<a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> *pcm)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get meter "now" frame pointer from a <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM. <a href="group___p_c_m___scope.html#gaa4929399573ca0e24b71a22b51d7f108"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___p_c_m.html#gab01fcfe9b97382a8d3f2027c664b8b8a">snd_pcm_uframes_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___scope.html#ga543fd7565c138f1a408ec55186725908">snd_pcm_meter_get_boundary</a> (<a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> *pcm)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get boundary for frame pointers from a <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM. <a href="group___p_c_m___scope.html#ga543fd7565c138f1a408ec55186725908"></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___scope.html#gaae1d6cce40b244180c54b72aee0e00d2">snd_pcm_scope_set_name</a> (<a class="el" href="group___p_c_m.html#ga3cd150b8aa57e634e1e1dd914940c765">snd_pcm_scope_t</a> *scope, const char *val)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set name of a <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM scope. <a href="group___p_c_m___scope.html#gaae1d6cce40b244180c54b72aee0e00d2"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___scope.html#gaff680f85a1f30c83b4b544ead5ff5a2a">snd_pcm_scope_get_name</a> (<a class="el" href="group___p_c_m.html#ga3cd150b8aa57e634e1e1dd914940c765">snd_pcm_scope_t</a> *scope)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get name of a <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM scope. <a href="group___p_c_m___scope.html#gaff680f85a1f30c83b4b544ead5ff5a2a"></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___scope.html#gabaf2af40ecc689cee2e81b9250823fcd">snd_pcm_scope_set_ops</a> (<a class="el" href="group___p_c_m.html#ga3cd150b8aa57e634e1e1dd914940c765">snd_pcm_scope_t</a> *scope, const <a class="el" href="structsnd__pcm__scope__ops__t.html">snd_pcm_scope_ops_t</a> *val)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set callbacks for a <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM scope. <a href="group___p_c_m___scope.html#gabaf2af40ecc689cee2e81b9250823fcd"></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___scope.html#gada4e9d2bfe2f7dc2b638c6406b9a4b26">snd_pcm_scope_get_callback_private</a> (<a class="el" href="group___p_c_m.html#ga3cd150b8aa57e634e1e1dd914940c765">snd_pcm_scope_t</a> *scope)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get callbacks private value for a <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM scope. <a href="group___p_c_m___scope.html#gada4e9d2bfe2f7dc2b638c6406b9a4b26"></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___scope.html#ga683ced3c9344b8f6f8aab4997f74f72d">snd_pcm_scope_set_callback_private</a> (<a class="el" href="group___p_c_m.html#ga3cd150b8aa57e634e1e1dd914940c765">snd_pcm_scope_t</a> *scope, void *val)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get callbacks private value for a <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM scope. <a href="group___p_c_m___scope.html#ga683ced3c9344b8f6f8aab4997f74f72d"></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___scope.html#ga3c1e3e9c3a5a99915de23bbd2635ae26">snd_pcm_scope_s16_open</a> (<a class="el" href="group___p_c_m.html#ga919e634deecd855b6e2e15174e70d3ea">snd_pcm_t</a> *pcm, const char *name, <a class="el" href="group___p_c_m.html#ga3cd150b8aa57e634e1e1dd914940c765">snd_pcm_scope_t</a> **scopep)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add a s16 pseudo scope to a <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM. <a href="group___p_c_m___scope.html#ga3c1e3e9c3a5a99915de23bbd2635ae26"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int16_t * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_c_m___scope.html#gac4297c74f130a89992459cbbc5ab029b">snd_pcm_scope_s16_get_channel_buffer</a> (<a class="el" href="group___p_c_m.html#ga3cd150b8aa57e634e1e1dd914940c765">snd_pcm_scope_t</a> *scope, unsigned int channel)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get s16 pseudo scope frames buffer for a channel. <a href="group___p_c_m___scope.html#gac4297c74f130a89992459cbbc5ab029b"></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___scope.html#ga360da60e074bffc146ffee93f8e79aa7">snd_pcm_scope_malloc</a> (<a class="el" href="group___p_c_m.html#ga3cd150b8aa57e634e1e1dd914940c765">snd_pcm_scope_t</a> **ptr)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">allocate an invalid <a class="el" href="group___p_c_m.html#ga3cd150b8aa57e634e1e1dd914940c765">snd_pcm_scope_t</a> using standard malloc <a href="group___p_c_m___scope.html#ga360da60e074bffc146ffee93f8e79aa7"></a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>Helper functions for <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM scopes. </p>
<dl class="author"><dt><b>Author:</b></dt><dd>Abramo Bagnara <<a href="mailto:abramo@alsa-project.org">abramo@alsa-project.org</a>> </dd></dl>
<dl class="date"><dt><b>Date:</b></dt><dd>2001</dd></dl>
<p>Helper functions for <a class="el" href="group___p_c_m.html#gga060d5b81f2fc8efcc35ff3e1de6e9fa4a415afb5482d35b38837035a6dd82b39d">SND_PCM_TYPE_METER</a> PCM scopes </p>
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