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<h1>channelmap.h File Reference</h1>Constants and routines for channel mapping handling.
<a href="#_details">More...</a>
<p>
<p>
<a href="channelmap_8h-source.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Data Structures</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="structpa__channel__map.html">pa_channel_map</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">A channel map which can be used to attach labels to specific channels of a stream. <a href="structpa__channel__map.html#_details">More...</a><br></td></tr>
<tr><td colspan="2"><br><h2>Defines</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#19fb89628e40ff671f047a83f43899e6">PA_CHANNEL_MAP_SNPRINT_MAX</a> 336</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">The maximum length of strings returned by <a class="el" href="channelmap_8h.html#5baa37ac22ea08485b12fcce63a98abe" title="Make a human readable string from the specified channel map.">pa_channel_map_snprint()</a>. <a href="#19fb89628e40ff671f047a83f43899e6"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Typedefs</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef enum <a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2">pa_channel_position</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#73a7ec05f42b21cb70ba4405b54177f6">pa_channel_position_t</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">A list of channel labels. <a href="#73a7ec05f42b21cb70ba4405b54177f6"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef enum <a class="el" href="channelmap_8h.html#61d273ea6bd3f09d79ffdec9e084f137">pa_channel_map_def</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#189e333032a5647a9a326e0f4d00c328">pa_channel_map_def_t</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">A list of channel mapping definitions for <a class="el" href="channelmap_8h.html#b7d13111387d169484853f713b68f9cc" title="Initialize the specified channel map for the specified number of channels using default...">pa_channel_map_init_auto()</a>. <a href="#189e333032a5647a9a326e0f4d00c328"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Enumerations</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">enum </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2">pa_channel_position</a> { <br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf25206a3a2c441012f29a2942eec5cd8c3">PA_CHANNEL_POSITION_INVALID</a> = -1,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2b66fd4fb8ed2630afe6fbf2d43734946">PA_CHANNEL_POSITION_MONO</a> = 0,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf204df6009a8dbf299ed9e10b68a8b0e85">PA_CHANNEL_POSITION_LEFT</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2db1482bfae031cbc1a710413ddb024fe">PA_CHANNEL_POSITION_RIGHT</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2aec2daac467ab4c0dff291243dd2a376">PA_CHANNEL_POSITION_CENTER</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf228399732efb53f72f18c7d6bdaa23e1e">PA_CHANNEL_POSITION_FRONT_LEFT</a> = PA_CHANNEL_POSITION_LEFT,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf23be79fc32518e4f9fb9b61fb7742b924">PA_CHANNEL_POSITION_FRONT_RIGHT</a> = PA_CHANNEL_POSITION_RIGHT,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf28bbe5bfe970b9541f7ca20c3bf8ab165">PA_CHANNEL_POSITION_FRONT_CENTER</a> = PA_CHANNEL_POSITION_CENTER,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2c75fc7f9df6c7fb52c84517f46679dfb">PA_CHANNEL_POSITION_REAR_CENTER</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf28fa64f2956cf5631b90fa04c2a6e6681">PA_CHANNEL_POSITION_REAR_LEFT</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf22fd4c08eb44e18fcbad36df56f60dd6c">PA_CHANNEL_POSITION_REAR_RIGHT</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2c22839469c8b8eb270b84c80fe4ea75d">PA_CHANNEL_POSITION_LFE</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2788c11f5403dd223ddf58d3cb7097789">PA_CHANNEL_POSITION_SUBWOOFER</a> = PA_CHANNEL_POSITION_LFE,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf28c905b7ae706ab48df43aaf201b0ee7b">PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf24bfcd16c2d3bc3dc8b7893fa77b95b28">PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf268711bf2ba3dec3cd4da45830d8ed2e9">PA_CHANNEL_POSITION_SIDE_LEFT</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf291c2ce5e67a4bddf19b38233d1049dc0">PA_CHANNEL_POSITION_SIDE_RIGHT</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2d1f960b7cb836254da65e89dbde2ede9">PA_CHANNEL_POSITION_AUX0</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2d3d8aa4fc6566c567a5190310443e8c9">PA_CHANNEL_POSITION_AUX1</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf211f4d0ccfcdc097fed4a5b80b0ed4835">PA_CHANNEL_POSITION_AUX2</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2ac0480a9f06577285e3cc895c012ecd8">PA_CHANNEL_POSITION_AUX3</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2a4f52dc1cf847f4bfe1b39aeb9cf3525">PA_CHANNEL_POSITION_AUX4</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2dd7d87cedbde94905fc2dfc4f93551aa">PA_CHANNEL_POSITION_AUX5</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf258f2927518a812dc1f58350a99ada321">PA_CHANNEL_POSITION_AUX6</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf24b0e6e3593cf79cc79d59bd719c7a822">PA_CHANNEL_POSITION_AUX7</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf23126bca5552400d07097e3d25b9562ad">PA_CHANNEL_POSITION_AUX8</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2e5e268b87565a2ea3d938cca5e97ea85">PA_CHANNEL_POSITION_AUX9</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2de459568ace71f5cf0a37847a1be343d">PA_CHANNEL_POSITION_AUX10</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2477df70c25091ba9ec2f65e76b6c49e1">PA_CHANNEL_POSITION_AUX11</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf205f5aa33377d6d75a193ceb6e236c6ad">PA_CHANNEL_POSITION_AUX12</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2fa680a81a993bed9250ea10d4d8871f1">PA_CHANNEL_POSITION_AUX13</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2d2d8188a97b7f3abb8a4418a19e74f18">PA_CHANNEL_POSITION_AUX14</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2fce1779d197d385a746157cc112a594c">PA_CHANNEL_POSITION_AUX15</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf298054fe350c19ef4611890b332f0fdf1">PA_CHANNEL_POSITION_AUX16</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2580a4dce399ab921b8498de1132c4824">PA_CHANNEL_POSITION_AUX17</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2dbc5887d084a85a708cc73a4340e0cbc">PA_CHANNEL_POSITION_AUX18</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf283c2e77d17d40abfed04162993c0940e">PA_CHANNEL_POSITION_AUX19</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf23db6a6a64d6600c7a23430b0616f40dd">PA_CHANNEL_POSITION_AUX20</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf28c0c387f33ae2c9b89a6e5613c42a44e">PA_CHANNEL_POSITION_AUX21</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf221f01fb9669ceff91b2005ca3216729f">PA_CHANNEL_POSITION_AUX22</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf26f846774c39f569556b79d56cd82ef5c">PA_CHANNEL_POSITION_AUX23</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2fa1e6efebddf77d4d59136b1bb77ac6e">PA_CHANNEL_POSITION_AUX24</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2635691b5d8f43f810612c6d114ed2874">PA_CHANNEL_POSITION_AUX25</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2a4785955305a0c1642fea32118c825a2">PA_CHANNEL_POSITION_AUX26</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf254a260ba5c87a6a5dacac17476569f16">PA_CHANNEL_POSITION_AUX27</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf229de6eb3eee401cde997ef63f2e2417b">PA_CHANNEL_POSITION_AUX28</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2ad354cdcf2f7ed5b4f0eb5c4ec24a97d">PA_CHANNEL_POSITION_AUX29</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf230a27df7be25a3a52572c3c97767456b">PA_CHANNEL_POSITION_AUX30</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf255dd989ff7f2be98b344762193fd7961">PA_CHANNEL_POSITION_AUX31</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2a152449ebfe5849c7d9a9814a2014c5d">PA_CHANNEL_POSITION_TOP_CENTER</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2d72aa13d24aa516cd647681b6f28a665">PA_CHANNEL_POSITION_TOP_FRONT_LEFT</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2ef8b430ae83ac3d8d2cbe86b9a743e63">PA_CHANNEL_POSITION_TOP_FRONT_RIGHT</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf216d1f11205ab9f8cd19b31f629a57876">PA_CHANNEL_POSITION_TOP_FRONT_CENTER</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf28021d63a5e3f2e71b3df2f277b2701ed">PA_CHANNEL_POSITION_TOP_REAR_LEFT</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf275c87a9324e5caf80ba53383d172aa2c">PA_CHANNEL_POSITION_TOP_REAR_RIGHT</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf20c0ad6318881b76af64d559b5a9772bf">PA_CHANNEL_POSITION_TOP_REAR_CENTER</a>,
<br>
<a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2533c4d4cedabc7f6f80434bac6063ecd">PA_CHANNEL_POSITION_MAX</a>
<br>
}</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">A list of channel labels. <a href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2">More...</a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">enum </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#61d273ea6bd3f09d79ffdec9e084f137">pa_channel_map_def</a> { <br>
<a class="el" href="channelmap_8h.html#61d273ea6bd3f09d79ffdec9e084f1378ad72a297d4c2f0d05666318e3cdb091">PA_CHANNEL_MAP_AIFF</a>,
<br>
<a class="el" href="channelmap_8h.html#61d273ea6bd3f09d79ffdec9e084f137de62bf24961ef056d7098241b7a91e4a">PA_CHANNEL_MAP_ALSA</a>,
<br>
<a class="el" href="channelmap_8h.html#61d273ea6bd3f09d79ffdec9e084f1379a5e04445155a9fa9e38f612a481c9e3">PA_CHANNEL_MAP_AUX</a>,
<br>
<a class="el" href="channelmap_8h.html#61d273ea6bd3f09d79ffdec9e084f137c41f518997d2c56a3b36128a79511ff3">PA_CHANNEL_MAP_WAVEEX</a>,
<br>
<a class="el" href="channelmap_8h.html#61d273ea6bd3f09d79ffdec9e084f137d96fe9edeca452ce776d02d72a38bdd4">PA_CHANNEL_MAP_OSS</a>,
<br>
<a class="el" href="channelmap_8h.html#61d273ea6bd3f09d79ffdec9e084f13780e9258aca89304211dc23bfac4b834e">PA_CHANNEL_MAP_DEF_MAX</a>,
<br>
<a class="el" href="channelmap_8h.html#61d273ea6bd3f09d79ffdec9e084f137043396c5f4f752ced94f1fd364efe215">PA_CHANNEL_MAP_DEFAULT</a> = PA_CHANNEL_MAP_AIFF
<br>
}</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">A list of channel mapping definitions for <a class="el" href="channelmap_8h.html#b7d13111387d169484853f713b68f9cc" title="Initialize the specified channel map for the specified number of channels using default...">pa_channel_map_init_auto()</a>. <a href="channelmap_8h.html#61d273ea6bd3f09d79ffdec9e084f137">More...</a><br></td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#bf6d26acfe2b0b7147034c19925a714f">pa_channel_map_init</a> (<a class="el" href="structpa__channel__map.html">pa_channel_map</a> *m)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Initialize the specified channel map and return a pointer to it. <a href="#bf6d26acfe2b0b7147034c19925a714f"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#f32466c8cb879edf9439ec35866760c6">pa_channel_map_init_mono</a> (<a class="el" href="structpa__channel__map.html">pa_channel_map</a> *m)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Initialize the specified channel map for monaural audio and return a pointer to it. <a href="#f32466c8cb879edf9439ec35866760c6"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#15e329f5ecc28cfb7ea26324a8035d02">pa_channel_map_init_stereo</a> (<a class="el" href="structpa__channel__map.html">pa_channel_map</a> *m)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Initialize the specified channel map for stereophonic audio and return a pointer to it. <a href="#15e329f5ecc28cfb7ea26324a8035d02"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#b7d13111387d169484853f713b68f9cc">pa_channel_map_init_auto</a> (<a class="el" href="structpa__channel__map.html">pa_channel_map</a> *m, unsigned channels, <a class="el" href="channelmap_8h.html#189e333032a5647a9a326e0f4d00c328">pa_channel_map_def_t</a> def)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Initialize the specified channel map for the specified number of channels using default labels and return a pointer to it. <a href="#b7d13111387d169484853f713b68f9cc"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#219e8d74ecc3e4ce29c863af9bacaab8">pa_channel_map_init_extend</a> (<a class="el" href="structpa__channel__map.html">pa_channel_map</a> *m, unsigned channels, <a class="el" href="channelmap_8h.html#189e333032a5647a9a326e0f4d00c328">pa_channel_map_def_t</a> def)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Similar to <a class="el" href="channelmap_8h.html#b7d13111387d169484853f713b68f9cc" title="Initialize the specified channel map for the specified number of channels using default...">pa_channel_map_init_auto()</a> but instead of failing if no default mapping is known with the specified parameters it will synthesize a mapping based on a known mapping with fewer channels and fill up the rest with AUX0. <a href="#219e8d74ecc3e4ce29c863af9bacaab8"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#219c7feb3ebeea1eec2670bfc35b01f2">pa_channel_position_to_string</a> (<a class="el" href="channelmap_8h.html#73a7ec05f42b21cb70ba4405b54177f6">pa_channel_position_t</a> pos) PA_GCC_PURE</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return a text label for the specified channel position. <a href="#219c7feb3ebeea1eec2670bfc35b01f2"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#b031af034e2e4da7ae725a7ff2ee8726">pa_channel_position_to_pretty_string</a> (<a class="el" href="channelmap_8h.html#73a7ec05f42b21cb70ba4405b54177f6">pa_channel_position_t</a> pos)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return a human readable text label for the specified channel position. <a href="#b031af034e2e4da7ae725a7ff2ee8726"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">char * </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#5baa37ac22ea08485b12fcce63a98abe">pa_channel_map_snprint</a> (char *s, size_t l, const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> *map)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Make a human readable string from the specified channel map. <a href="#5baa37ac22ea08485b12fcce63a98abe"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#66d10dda716c59960d6100c2774e6a36">pa_channel_map_parse</a> (<a class="el" href="structpa__channel__map.html">pa_channel_map</a> *map, const char *s)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Parse a channel position list or well-known mapping name into a channel map structure. <a href="#66d10dda716c59960d6100c2774e6a36"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#851c6c02f0cbfc193d9bacfe42110bd3">pa_channel_map_equal</a> (const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> *a, const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> *b) PA_GCC_PURE</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Compare two channel maps. <a href="#851c6c02f0cbfc193d9bacfe42110bd3"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#5d4699c853806a999cbde869dbf7a7ad">pa_channel_map_valid</a> (const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> *map) PA_GCC_PURE</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return non-zero if the specified channel map is considered valid. <a href="#5d4699c853806a999cbde869dbf7a7ad"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#2bfd3d5ff3752b7ef6481cc18f4005fd">pa_channel_map_compatible</a> (const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> *map, const <a class="el" href="structpa__sample__spec.html">pa_sample_spec</a> *ss) PA_GCC_PURE</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return non-zero if the specified channel map is compatible with the specified sample spec. <a href="#2bfd3d5ff3752b7ef6481cc18f4005fd"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#272cc00f63f075b8fca6d5d5ebd87977">pa_channel_map_superset</a> (const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> *a, const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> *b) PA_GCC_PURE</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns non-zero if every channel defined in b is also defined in a. <a href="#272cc00f63f075b8fca6d5d5ebd87977"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#0ece3ec5671817252fd5e8d804c31452">pa_channel_map_can_balance</a> (const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> *map) PA_GCC_PURE</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns non-zero if it makes sense to apply a volume 'balance' with this mapping, i.e. <a href="#0ece3ec5671817252fd5e8d804c31452"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#2204e8c49245a7526dbed708ca9cef05">pa_channel_map_can_fade</a> (const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> *map) PA_GCC_PURE</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns non-zero if it makes sense to apply a volume 'fade' (i.e. <a href="#2204e8c49245a7526dbed708ca9cef05"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#ed6849626f3e88b4b3543263e0a29724">pa_channel_map_to_name</a> (const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> *map) PA_GCC_PURE</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Tries to find a well-known channel mapping name for this channel mapping. <a href="#ed6849626f3e88b4b3543263e0a29724"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="channelmap_8h.html#e5ae807a631fc28a7b0c29da982bef3c">pa_channel_map_to_pretty_name</a> (const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> *map) PA_GCC_PURE</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Tries to find a human readable text label for this channel mapping. <a href="#e5ae807a631fc28a7b0c29da982bef3c"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
Constants and routines for channel mapping handling.
<p>
<hr><h2>Define Documentation</h2>
<a class="anchor" name="19fb89628e40ff671f047a83f43899e6"></a><!-- doxytag: member="channelmap.h::PA_CHANNEL_MAP_SNPRINT_MAX" ref="19fb89628e40ff671f047a83f43899e6" args="" -->
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<td class="memname">#define PA_CHANNEL_MAP_SNPRINT_MAX 336 </td>
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<p>
The maximum length of strings returned by <a class="el" href="channelmap_8h.html#5baa37ac22ea08485b12fcce63a98abe" title="Make a human readable string from the specified channel map.">pa_channel_map_snprint()</a>.
<p>
Please note that this value can change with any release without warning and without being considered API or ABI breakage. You should not use this definition anywhere where it might become part of an ABI. <dl compact><dt><b>Examples: </b></dt><dd>
<a class="el" href="pacat_8c-example.html#a28">pacat.c</a>.</dl>
</div>
</div><p>
<hr><h2>Typedef Documentation</h2>
<a class="anchor" name="189e333032a5647a9a326e0f4d00c328"></a><!-- doxytag: member="channelmap.h::pa_channel_map_def_t" ref="189e333032a5647a9a326e0f4d00c328" args="" -->
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<td class="memname">typedef enum <a class="el" href="channelmap_8h.html#61d273ea6bd3f09d79ffdec9e084f137">pa_channel_map_def</a> <a class="el" href="channelmap_8h.html#189e333032a5647a9a326e0f4d00c328">pa_channel_map_def_t</a> </td>
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<div class="memdoc">
<p>
A list of channel mapping definitions for <a class="el" href="channelmap_8h.html#b7d13111387d169484853f713b68f9cc" title="Initialize the specified channel map for the specified number of channels using default...">pa_channel_map_init_auto()</a>.
<p>
</div>
</div><p>
<a class="anchor" name="73a7ec05f42b21cb70ba4405b54177f6"></a><!-- doxytag: member="channelmap.h::pa_channel_position_t" ref="73a7ec05f42b21cb70ba4405b54177f6" args="" -->
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<td class="memname">typedef enum <a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2">pa_channel_position</a> <a class="el" href="channelmap_8h.html#73a7ec05f42b21cb70ba4405b54177f6">pa_channel_position_t</a> </td>
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<div class="memdoc">
<p>
A list of channel labels.
<p>
</div>
</div><p>
<hr><h2>Enumeration Type Documentation</h2>
<a class="anchor" name="61d273ea6bd3f09d79ffdec9e084f137"></a><!-- doxytag: member="channelmap.h::pa_channel_map_def" ref="61d273ea6bd3f09d79ffdec9e084f137" args="" -->
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<td class="memname">enum <a class="el" href="channelmap_8h.html#61d273ea6bd3f09d79ffdec9e084f137">pa_channel_map_def</a> </td>
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<div class="memdoc">
<p>
A list of channel mapping definitions for <a class="el" href="channelmap_8h.html#b7d13111387d169484853f713b68f9cc" title="Initialize the specified channel map for the specified number of channels using default...">pa_channel_map_init_auto()</a>.
<p>
<dl compact><dt><b>Enumerator: </b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" name="61d273ea6bd3f09d79ffdec9e084f1378ad72a297d4c2f0d05666318e3cdb091"></a><!-- doxytag: member="PA_CHANNEL_MAP_AIFF" ref="61d273ea6bd3f09d79ffdec9e084f1378ad72a297d4c2f0d05666318e3cdb091" args="" -->PA_CHANNEL_MAP_AIFF</em> </td><td>
The mapping from RFC3551, which is based on AIFF-C. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="61d273ea6bd3f09d79ffdec9e084f137de62bf24961ef056d7098241b7a91e4a"></a><!-- doxytag: member="PA_CHANNEL_MAP_ALSA" ref="61d273ea6bd3f09d79ffdec9e084f137de62bf24961ef056d7098241b7a91e4a" args="" -->PA_CHANNEL_MAP_ALSA</em> </td><td>
The default mapping used by ALSA. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="61d273ea6bd3f09d79ffdec9e084f1379a5e04445155a9fa9e38f612a481c9e3"></a><!-- doxytag: member="PA_CHANNEL_MAP_AUX" ref="61d273ea6bd3f09d79ffdec9e084f1379a5e04445155a9fa9e38f612a481c9e3" args="" -->PA_CHANNEL_MAP_AUX</em> </td><td>
Only aux channels. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="61d273ea6bd3f09d79ffdec9e084f137c41f518997d2c56a3b36128a79511ff3"></a><!-- doxytag: member="PA_CHANNEL_MAP_WAVEEX" ref="61d273ea6bd3f09d79ffdec9e084f137c41f518997d2c56a3b36128a79511ff3" args="" -->PA_CHANNEL_MAP_WAVEEX</em> </td><td>
Microsoft's WAVEFORMATEXTENSIBLE mapping. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="61d273ea6bd3f09d79ffdec9e084f137d96fe9edeca452ce776d02d72a38bdd4"></a><!-- doxytag: member="PA_CHANNEL_MAP_OSS" ref="61d273ea6bd3f09d79ffdec9e084f137d96fe9edeca452ce776d02d72a38bdd4" args="" -->PA_CHANNEL_MAP_OSS</em> </td><td>
The default channel mapping used by OSS as defined in the OSS 4.0 API specs.
<p>
Upper limit of valid channel mapping definitions </td></tr>
<tr><td valign="top"><em><a class="anchor" name="61d273ea6bd3f09d79ffdec9e084f13780e9258aca89304211dc23bfac4b834e"></a><!-- doxytag: member="PA_CHANNEL_MAP_DEF_MAX" ref="61d273ea6bd3f09d79ffdec9e084f13780e9258aca89304211dc23bfac4b834e" args="" -->PA_CHANNEL_MAP_DEF_MAX</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="61d273ea6bd3f09d79ffdec9e084f137043396c5f4f752ced94f1fd364efe215"></a><!-- doxytag: member="PA_CHANNEL_MAP_DEFAULT" ref="61d273ea6bd3f09d79ffdec9e084f137043396c5f4f752ced94f1fd364efe215" args="" -->PA_CHANNEL_MAP_DEFAULT</em> </td><td>
The default channel map. </td></tr>
</table>
</dl>
</div>
</div><p>
<a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2"></a><!-- doxytag: member="channelmap.h::pa_channel_position" ref="f1cbe2738487c74f99e613779bd34bf2" args="" -->
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<td class="memname">enum <a class="el" href="channelmap_8h.html#f1cbe2738487c74f99e613779bd34bf2">pa_channel_position</a> </td>
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<p>
A list of channel labels.
<p>
<dl compact><dt><b>Enumerator: </b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf25206a3a2c441012f29a2942eec5cd8c3"></a><!-- doxytag: member="PA_CHANNEL_POSITION_INVALID" ref="f1cbe2738487c74f99e613779bd34bf25206a3a2c441012f29a2942eec5cd8c3" args="" -->PA_CHANNEL_POSITION_INVALID</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2b66fd4fb8ed2630afe6fbf2d43734946"></a><!-- doxytag: member="PA_CHANNEL_POSITION_MONO" ref="f1cbe2738487c74f99e613779bd34bf2b66fd4fb8ed2630afe6fbf2d43734946" args="" -->PA_CHANNEL_POSITION_MONO</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf204df6009a8dbf299ed9e10b68a8b0e85"></a><!-- doxytag: member="PA_CHANNEL_POSITION_LEFT" ref="f1cbe2738487c74f99e613779bd34bf204df6009a8dbf299ed9e10b68a8b0e85" args="" -->PA_CHANNEL_POSITION_LEFT</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2db1482bfae031cbc1a710413ddb024fe"></a><!-- doxytag: member="PA_CHANNEL_POSITION_RIGHT" ref="f1cbe2738487c74f99e613779bd34bf2db1482bfae031cbc1a710413ddb024fe" args="" -->PA_CHANNEL_POSITION_RIGHT</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2aec2daac467ab4c0dff291243dd2a376"></a><!-- doxytag: member="PA_CHANNEL_POSITION_CENTER" ref="f1cbe2738487c74f99e613779bd34bf2aec2daac467ab4c0dff291243dd2a376" args="" -->PA_CHANNEL_POSITION_CENTER</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf228399732efb53f72f18c7d6bdaa23e1e"></a><!-- doxytag: member="PA_CHANNEL_POSITION_FRONT_LEFT" ref="f1cbe2738487c74f99e613779bd34bf228399732efb53f72f18c7d6bdaa23e1e" args="" -->PA_CHANNEL_POSITION_FRONT_LEFT</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf23be79fc32518e4f9fb9b61fb7742b924"></a><!-- doxytag: member="PA_CHANNEL_POSITION_FRONT_RIGHT" ref="f1cbe2738487c74f99e613779bd34bf23be79fc32518e4f9fb9b61fb7742b924" args="" -->PA_CHANNEL_POSITION_FRONT_RIGHT</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf28bbe5bfe970b9541f7ca20c3bf8ab165"></a><!-- doxytag: member="PA_CHANNEL_POSITION_FRONT_CENTER" ref="f1cbe2738487c74f99e613779bd34bf28bbe5bfe970b9541f7ca20c3bf8ab165" args="" -->PA_CHANNEL_POSITION_FRONT_CENTER</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2c75fc7f9df6c7fb52c84517f46679dfb"></a><!-- doxytag: member="PA_CHANNEL_POSITION_REAR_CENTER" ref="f1cbe2738487c74f99e613779bd34bf2c75fc7f9df6c7fb52c84517f46679dfb" args="" -->PA_CHANNEL_POSITION_REAR_CENTER</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf28fa64f2956cf5631b90fa04c2a6e6681"></a><!-- doxytag: member="PA_CHANNEL_POSITION_REAR_LEFT" ref="f1cbe2738487c74f99e613779bd34bf28fa64f2956cf5631b90fa04c2a6e6681" args="" -->PA_CHANNEL_POSITION_REAR_LEFT</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf22fd4c08eb44e18fcbad36df56f60dd6c"></a><!-- doxytag: member="PA_CHANNEL_POSITION_REAR_RIGHT" ref="f1cbe2738487c74f99e613779bd34bf22fd4c08eb44e18fcbad36df56f60dd6c" args="" -->PA_CHANNEL_POSITION_REAR_RIGHT</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2c22839469c8b8eb270b84c80fe4ea75d"></a><!-- doxytag: member="PA_CHANNEL_POSITION_LFE" ref="f1cbe2738487c74f99e613779bd34bf2c22839469c8b8eb270b84c80fe4ea75d" args="" -->PA_CHANNEL_POSITION_LFE</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2788c11f5403dd223ddf58d3cb7097789"></a><!-- doxytag: member="PA_CHANNEL_POSITION_SUBWOOFER" ref="f1cbe2738487c74f99e613779bd34bf2788c11f5403dd223ddf58d3cb7097789" args="" -->PA_CHANNEL_POSITION_SUBWOOFER</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf28c905b7ae706ab48df43aaf201b0ee7b"></a><!-- doxytag: member="PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER" ref="f1cbe2738487c74f99e613779bd34bf28c905b7ae706ab48df43aaf201b0ee7b" args="" -->PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf24bfcd16c2d3bc3dc8b7893fa77b95b28"></a><!-- doxytag: member="PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER" ref="f1cbe2738487c74f99e613779bd34bf24bfcd16c2d3bc3dc8b7893fa77b95b28" args="" -->PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf268711bf2ba3dec3cd4da45830d8ed2e9"></a><!-- doxytag: member="PA_CHANNEL_POSITION_SIDE_LEFT" ref="f1cbe2738487c74f99e613779bd34bf268711bf2ba3dec3cd4da45830d8ed2e9" args="" -->PA_CHANNEL_POSITION_SIDE_LEFT</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf291c2ce5e67a4bddf19b38233d1049dc0"></a><!-- doxytag: member="PA_CHANNEL_POSITION_SIDE_RIGHT" ref="f1cbe2738487c74f99e613779bd34bf291c2ce5e67a4bddf19b38233d1049dc0" args="" -->PA_CHANNEL_POSITION_SIDE_RIGHT</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2d1f960b7cb836254da65e89dbde2ede9"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX0" ref="f1cbe2738487c74f99e613779bd34bf2d1f960b7cb836254da65e89dbde2ede9" args="" -->PA_CHANNEL_POSITION_AUX0</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2d3d8aa4fc6566c567a5190310443e8c9"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX1" ref="f1cbe2738487c74f99e613779bd34bf2d3d8aa4fc6566c567a5190310443e8c9" args="" -->PA_CHANNEL_POSITION_AUX1</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf211f4d0ccfcdc097fed4a5b80b0ed4835"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX2" ref="f1cbe2738487c74f99e613779bd34bf211f4d0ccfcdc097fed4a5b80b0ed4835" args="" -->PA_CHANNEL_POSITION_AUX2</em> </td><td>
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<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2ac0480a9f06577285e3cc895c012ecd8"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX3" ref="f1cbe2738487c74f99e613779bd34bf2ac0480a9f06577285e3cc895c012ecd8" args="" -->PA_CHANNEL_POSITION_AUX3</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2a4f52dc1cf847f4bfe1b39aeb9cf3525"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX4" ref="f1cbe2738487c74f99e613779bd34bf2a4f52dc1cf847f4bfe1b39aeb9cf3525" args="" -->PA_CHANNEL_POSITION_AUX4</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2dd7d87cedbde94905fc2dfc4f93551aa"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX5" ref="f1cbe2738487c74f99e613779bd34bf2dd7d87cedbde94905fc2dfc4f93551aa" args="" -->PA_CHANNEL_POSITION_AUX5</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf258f2927518a812dc1f58350a99ada321"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX6" ref="f1cbe2738487c74f99e613779bd34bf258f2927518a812dc1f58350a99ada321" args="" -->PA_CHANNEL_POSITION_AUX6</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf24b0e6e3593cf79cc79d59bd719c7a822"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX7" ref="f1cbe2738487c74f99e613779bd34bf24b0e6e3593cf79cc79d59bd719c7a822" args="" -->PA_CHANNEL_POSITION_AUX7</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf23126bca5552400d07097e3d25b9562ad"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX8" ref="f1cbe2738487c74f99e613779bd34bf23126bca5552400d07097e3d25b9562ad" args="" -->PA_CHANNEL_POSITION_AUX8</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2e5e268b87565a2ea3d938cca5e97ea85"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX9" ref="f1cbe2738487c74f99e613779bd34bf2e5e268b87565a2ea3d938cca5e97ea85" args="" -->PA_CHANNEL_POSITION_AUX9</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2de459568ace71f5cf0a37847a1be343d"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX10" ref="f1cbe2738487c74f99e613779bd34bf2de459568ace71f5cf0a37847a1be343d" args="" -->PA_CHANNEL_POSITION_AUX10</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2477df70c25091ba9ec2f65e76b6c49e1"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX11" ref="f1cbe2738487c74f99e613779bd34bf2477df70c25091ba9ec2f65e76b6c49e1" args="" -->PA_CHANNEL_POSITION_AUX11</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf205f5aa33377d6d75a193ceb6e236c6ad"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX12" ref="f1cbe2738487c74f99e613779bd34bf205f5aa33377d6d75a193ceb6e236c6ad" args="" -->PA_CHANNEL_POSITION_AUX12</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2fa680a81a993bed9250ea10d4d8871f1"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX13" ref="f1cbe2738487c74f99e613779bd34bf2fa680a81a993bed9250ea10d4d8871f1" args="" -->PA_CHANNEL_POSITION_AUX13</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2d2d8188a97b7f3abb8a4418a19e74f18"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX14" ref="f1cbe2738487c74f99e613779bd34bf2d2d8188a97b7f3abb8a4418a19e74f18" args="" -->PA_CHANNEL_POSITION_AUX14</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2fce1779d197d385a746157cc112a594c"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX15" ref="f1cbe2738487c74f99e613779bd34bf2fce1779d197d385a746157cc112a594c" args="" -->PA_CHANNEL_POSITION_AUX15</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf298054fe350c19ef4611890b332f0fdf1"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX16" ref="f1cbe2738487c74f99e613779bd34bf298054fe350c19ef4611890b332f0fdf1" args="" -->PA_CHANNEL_POSITION_AUX16</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2580a4dce399ab921b8498de1132c4824"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX17" ref="f1cbe2738487c74f99e613779bd34bf2580a4dce399ab921b8498de1132c4824" args="" -->PA_CHANNEL_POSITION_AUX17</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2dbc5887d084a85a708cc73a4340e0cbc"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX18" ref="f1cbe2738487c74f99e613779bd34bf2dbc5887d084a85a708cc73a4340e0cbc" args="" -->PA_CHANNEL_POSITION_AUX18</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf283c2e77d17d40abfed04162993c0940e"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX19" ref="f1cbe2738487c74f99e613779bd34bf283c2e77d17d40abfed04162993c0940e" args="" -->PA_CHANNEL_POSITION_AUX19</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf23db6a6a64d6600c7a23430b0616f40dd"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX20" ref="f1cbe2738487c74f99e613779bd34bf23db6a6a64d6600c7a23430b0616f40dd" args="" -->PA_CHANNEL_POSITION_AUX20</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf28c0c387f33ae2c9b89a6e5613c42a44e"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX21" ref="f1cbe2738487c74f99e613779bd34bf28c0c387f33ae2c9b89a6e5613c42a44e" args="" -->PA_CHANNEL_POSITION_AUX21</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf221f01fb9669ceff91b2005ca3216729f"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX22" ref="f1cbe2738487c74f99e613779bd34bf221f01fb9669ceff91b2005ca3216729f" args="" -->PA_CHANNEL_POSITION_AUX22</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf26f846774c39f569556b79d56cd82ef5c"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX23" ref="f1cbe2738487c74f99e613779bd34bf26f846774c39f569556b79d56cd82ef5c" args="" -->PA_CHANNEL_POSITION_AUX23</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2fa1e6efebddf77d4d59136b1bb77ac6e"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX24" ref="f1cbe2738487c74f99e613779bd34bf2fa1e6efebddf77d4d59136b1bb77ac6e" args="" -->PA_CHANNEL_POSITION_AUX24</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2635691b5d8f43f810612c6d114ed2874"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX25" ref="f1cbe2738487c74f99e613779bd34bf2635691b5d8f43f810612c6d114ed2874" args="" -->PA_CHANNEL_POSITION_AUX25</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2a4785955305a0c1642fea32118c825a2"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX26" ref="f1cbe2738487c74f99e613779bd34bf2a4785955305a0c1642fea32118c825a2" args="" -->PA_CHANNEL_POSITION_AUX26</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf254a260ba5c87a6a5dacac17476569f16"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX27" ref="f1cbe2738487c74f99e613779bd34bf254a260ba5c87a6a5dacac17476569f16" args="" -->PA_CHANNEL_POSITION_AUX27</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf229de6eb3eee401cde997ef63f2e2417b"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX28" ref="f1cbe2738487c74f99e613779bd34bf229de6eb3eee401cde997ef63f2e2417b" args="" -->PA_CHANNEL_POSITION_AUX28</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2ad354cdcf2f7ed5b4f0eb5c4ec24a97d"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX29" ref="f1cbe2738487c74f99e613779bd34bf2ad354cdcf2f7ed5b4f0eb5c4ec24a97d" args="" -->PA_CHANNEL_POSITION_AUX29</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf230a27df7be25a3a52572c3c97767456b"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX30" ref="f1cbe2738487c74f99e613779bd34bf230a27df7be25a3a52572c3c97767456b" args="" -->PA_CHANNEL_POSITION_AUX30</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf255dd989ff7f2be98b344762193fd7961"></a><!-- doxytag: member="PA_CHANNEL_POSITION_AUX31" ref="f1cbe2738487c74f99e613779bd34bf255dd989ff7f2be98b344762193fd7961" args="" -->PA_CHANNEL_POSITION_AUX31</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2a152449ebfe5849c7d9a9814a2014c5d"></a><!-- doxytag: member="PA_CHANNEL_POSITION_TOP_CENTER" ref="f1cbe2738487c74f99e613779bd34bf2a152449ebfe5849c7d9a9814a2014c5d" args="" -->PA_CHANNEL_POSITION_TOP_CENTER</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2d72aa13d24aa516cd647681b6f28a665"></a><!-- doxytag: member="PA_CHANNEL_POSITION_TOP_FRONT_LEFT" ref="f1cbe2738487c74f99e613779bd34bf2d72aa13d24aa516cd647681b6f28a665" args="" -->PA_CHANNEL_POSITION_TOP_FRONT_LEFT</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2ef8b430ae83ac3d8d2cbe86b9a743e63"></a><!-- doxytag: member="PA_CHANNEL_POSITION_TOP_FRONT_RIGHT" ref="f1cbe2738487c74f99e613779bd34bf2ef8b430ae83ac3d8d2cbe86b9a743e63" args="" -->PA_CHANNEL_POSITION_TOP_FRONT_RIGHT</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf216d1f11205ab9f8cd19b31f629a57876"></a><!-- doxytag: member="PA_CHANNEL_POSITION_TOP_FRONT_CENTER" ref="f1cbe2738487c74f99e613779bd34bf216d1f11205ab9f8cd19b31f629a57876" args="" -->PA_CHANNEL_POSITION_TOP_FRONT_CENTER</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf28021d63a5e3f2e71b3df2f277b2701ed"></a><!-- doxytag: member="PA_CHANNEL_POSITION_TOP_REAR_LEFT" ref="f1cbe2738487c74f99e613779bd34bf28021d63a5e3f2e71b3df2f277b2701ed" args="" -->PA_CHANNEL_POSITION_TOP_REAR_LEFT</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf275c87a9324e5caf80ba53383d172aa2c"></a><!-- doxytag: member="PA_CHANNEL_POSITION_TOP_REAR_RIGHT" ref="f1cbe2738487c74f99e613779bd34bf275c87a9324e5caf80ba53383d172aa2c" args="" -->PA_CHANNEL_POSITION_TOP_REAR_RIGHT</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf20c0ad6318881b76af64d559b5a9772bf"></a><!-- doxytag: member="PA_CHANNEL_POSITION_TOP_REAR_CENTER" ref="f1cbe2738487c74f99e613779bd34bf20c0ad6318881b76af64d559b5a9772bf" args="" -->PA_CHANNEL_POSITION_TOP_REAR_CENTER</em> </td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="f1cbe2738487c74f99e613779bd34bf2533c4d4cedabc7f6f80434bac6063ecd"></a><!-- doxytag: member="PA_CHANNEL_POSITION_MAX" ref="f1cbe2738487c74f99e613779bd34bf2533c4d4cedabc7f6f80434bac6063ecd" args="" -->PA_CHANNEL_POSITION_MAX</em> </td><td>
</td></tr>
</table>
</dl>
</div>
</div><p>
<hr><h2>Function Documentation</h2>
<a class="anchor" name="0ece3ec5671817252fd5e8d804c31452"></a><!-- doxytag: member="channelmap.h::pa_channel_map_can_balance" ref="0ece3ec5671817252fd5e8d804c31452" args="(const pa_channel_map *map) PA_GCC_PURE" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int pa_channel_map_can_balance </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>map</em> </td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Returns non-zero if it makes sense to apply a volume 'balance' with this mapping, i.e.
<p>
if there are left/right channels available. <dl class="since" compact><dt><b>Since:</b></dt><dd>0.9.15 </dd></dl>
</div>
</div><p>
<a class="anchor" name="2204e8c49245a7526dbed708ca9cef05"></a><!-- doxytag: member="channelmap.h::pa_channel_map_can_fade" ref="2204e8c49245a7526dbed708ca9cef05" args="(const pa_channel_map *map) PA_GCC_PURE" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int pa_channel_map_can_fade </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>map</em> </td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Returns non-zero if it makes sense to apply a volume 'fade' (i.e.
<p>
'balance' between front and rear) with this mapping, i.e. if there are front/rear channels available. <dl class="since" compact><dt><b>Since:</b></dt><dd>0.9.15 </dd></dl>
</div>
</div><p>
<a class="anchor" name="2bfd3d5ff3752b7ef6481cc18f4005fd"></a><!-- doxytag: member="channelmap.h::pa_channel_map_compatible" ref="2bfd3d5ff3752b7ef6481cc18f4005fd" args="(const pa_channel_map *map, const pa_sample_spec *ss) PA_GCC_PURE" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">int pa_channel_map_compatible </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>map</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="structpa__sample__spec.html">pa_sample_spec</a> * </td>
<td class="paramname"> <em>ss</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Return non-zero if the specified channel map is compatible with the specified sample spec.
<p>
<dl class="since" compact><dt><b>Since:</b></dt><dd>0.9.12 </dd></dl>
<dl compact><dt><b>Examples: </b></dt><dd>
<a class="el" href="pacat_8c-example.html#a105">pacat.c</a>.</dl>
</div>
</div><p>
<a class="anchor" name="851c6c02f0cbfc193d9bacfe42110bd3"></a><!-- doxytag: member="channelmap.h::pa_channel_map_equal" ref="851c6c02f0cbfc193d9bacfe42110bd3" args="(const pa_channel_map *a, const pa_channel_map *b) PA_GCC_PURE" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">int pa_channel_map_equal </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>a</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>b</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Compare two channel maps.
<p>
Return 1 if both match.
</div>
</div><p>
<a class="anchor" name="bf6d26acfe2b0b7147034c19925a714f"></a><!-- doxytag: member="channelmap.h::pa_channel_map_init" ref="bf6d26acfe2b0b7147034c19925a714f" args="(pa_channel_map *m)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="structpa__channel__map.html">pa_channel_map</a>* pa_channel_map_init </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>m</em> </td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Initialize the specified channel map and return a pointer to it.
<p>
The channel map will have a defined state but <a class="el" href="channelmap_8h.html#5d4699c853806a999cbde869dbf7a7ad" title="Return non-zero if the specified channel map is considered valid.">pa_channel_map_valid()</a> will fail for it.
</div>
</div><p>
<a class="anchor" name="b7d13111387d169484853f713b68f9cc"></a><!-- doxytag: member="channelmap.h::pa_channel_map_init_auto" ref="b7d13111387d169484853f713b68f9cc" args="(pa_channel_map *m, unsigned channels, pa_channel_map_def_t def)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="structpa__channel__map.html">pa_channel_map</a>* pa_channel_map_init_auto </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>m</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned </td>
<td class="paramname"> <em>channels</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="channelmap_8h.html#189e333032a5647a9a326e0f4d00c328">pa_channel_map_def_t</a> </td>
<td class="paramname"> <em>def</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Initialize the specified channel map for the specified number of channels using default labels and return a pointer to it.
<p>
This call will fail (return NULL) if there is no default channel map known for this specific number of channels and mapping.
</div>
</div><p>
<a class="anchor" name="219e8d74ecc3e4ce29c863af9bacaab8"></a><!-- doxytag: member="channelmap.h::pa_channel_map_init_extend" ref="219e8d74ecc3e4ce29c863af9bacaab8" args="(pa_channel_map *m, unsigned channels, pa_channel_map_def_t def)" -->
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<td class="memname"><a class="el" href="structpa__channel__map.html">pa_channel_map</a>* pa_channel_map_init_extend </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>m</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned </td>
<td class="paramname"> <em>channels</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="channelmap_8h.html#189e333032a5647a9a326e0f4d00c328">pa_channel_map_def_t</a> </td>
<td class="paramname"> <em>def</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
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<div class="memdoc">
<p>
Similar to <a class="el" href="channelmap_8h.html#b7d13111387d169484853f713b68f9cc" title="Initialize the specified channel map for the specified number of channels using default...">pa_channel_map_init_auto()</a> but instead of failing if no default mapping is known with the specified parameters it will synthesize a mapping based on a known mapping with fewer channels and fill up the rest with AUX0.
<p>
..AUX31 channels <dl class="since" compact><dt><b>Since:</b></dt><dd>0.9.11 </dd></dl>
</div>
</div><p>
<a class="anchor" name="f32466c8cb879edf9439ec35866760c6"></a><!-- doxytag: member="channelmap.h::pa_channel_map_init_mono" ref="f32466c8cb879edf9439ec35866760c6" args="(pa_channel_map *m)" -->
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<td class="memname"><a class="el" href="structpa__channel__map.html">pa_channel_map</a>* pa_channel_map_init_mono </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>m</em> </td>
<td> ) </td>
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<div class="memdoc">
<p>
Initialize the specified channel map for monaural audio and return a pointer to it.
<p>
</div>
</div><p>
<a class="anchor" name="15e329f5ecc28cfb7ea26324a8035d02"></a><!-- doxytag: member="channelmap.h::pa_channel_map_init_stereo" ref="15e329f5ecc28cfb7ea26324a8035d02" args="(pa_channel_map *m)" -->
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<td class="memname"><a class="el" href="structpa__channel__map.html">pa_channel_map</a>* pa_channel_map_init_stereo </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>m</em> </td>
<td> ) </td>
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<div class="memdoc">
<p>
Initialize the specified channel map for stereophonic audio and return a pointer to it.
<p>
</div>
</div><p>
<a class="anchor" name="66d10dda716c59960d6100c2774e6a36"></a><!-- doxytag: member="channelmap.h::pa_channel_map_parse" ref="66d10dda716c59960d6100c2774e6a36" args="(pa_channel_map *map, const char *s)" -->
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<td class="memname"><a class="el" href="structpa__channel__map.html">pa_channel_map</a>* pa_channel_map_parse </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>map</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>s</em></td><td> </td>
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<td></td>
<td>)</td>
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<p>
Parse a channel position list or well-known mapping name into a channel map structure.
<p>
This turns the output of <a class="el" href="channelmap_8h.html#5baa37ac22ea08485b12fcce63a98abe" title="Make a human readable string from the specified channel map.">pa_channel_map_snprint()</a> and <a class="el" href="channelmap_8h.html#ed6849626f3e88b4b3543263e0a29724" title="Tries to find a well-known channel mapping name for this channel mapping.">pa_channel_map_to_name()</a> back into a <a class="el" href="structpa__channel__map.html" title="A channel map which can be used to attach labels to specific channels of a stream...">pa_channel_map</a> <dl compact><dt><b>Examples: </b></dt><dd>
<a class="el" href="pacat_8c-example.html#a98">pacat.c</a>, and <a class="el" href="paplay_8c-example.html#a47">paplay.c</a>.</dl>
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</div><p>
<a class="anchor" name="5baa37ac22ea08485b12fcce63a98abe"></a><!-- doxytag: member="channelmap.h::pa_channel_map_snprint" ref="5baa37ac22ea08485b12fcce63a98abe" args="(char *s, size_t l, const pa_channel_map *map)" -->
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<td class="memname">char* pa_channel_map_snprint </td>
<td>(</td>
<td class="paramtype">char * </td>
<td class="paramname"> <em>s</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"> <em>l</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>map</em></td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td></td>
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<p>
Make a human readable string from the specified channel map.
<p>
<dl compact><dt><b>Examples: </b></dt><dd>
<a class="el" href="pacat_8c-example.html#a39">pacat.c</a>.</dl>
</div>
</div><p>
<a class="anchor" name="272cc00f63f075b8fca6d5d5ebd87977"></a><!-- doxytag: member="channelmap.h::pa_channel_map_superset" ref="272cc00f63f075b8fca6d5d5ebd87977" args="(const pa_channel_map *a, const pa_channel_map *b) PA_GCC_PURE" -->
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<td class="memname">int pa_channel_map_superset </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>a</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>b</em></td><td> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td></td>
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<p>
Returns non-zero if every channel defined in b is also defined in a.
<p>
<dl class="since" compact><dt><b>Since:</b></dt><dd>0.9.15 </dd></dl>
</div>
</div><p>
<a class="anchor" name="ed6849626f3e88b4b3543263e0a29724"></a><!-- doxytag: member="channelmap.h::pa_channel_map_to_name" ref="ed6849626f3e88b4b3543263e0a29724" args="(const pa_channel_map *map) PA_GCC_PURE" -->
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<td class="memname">const char* pa_channel_map_to_name </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>map</em> </td>
<td> ) </td>
<td></td>
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<div class="memdoc">
<p>
Tries to find a well-known channel mapping name for this channel mapping.
<p>
I.e. "stereo", "surround-71" and so on. If the channel mapping is unknown NULL will be returned. This name can be parsed with <a class="el" href="channelmap_8h.html#66d10dda716c59960d6100c2774e6a36" title="Parse a channel position list or well-known mapping name into a channel map structure...">pa_channel_map_parse()</a> <dl class="since" compact><dt><b>Since:</b></dt><dd>0.9.15 </dd></dl>
</div>
</div><p>
<a class="anchor" name="e5ae807a631fc28a7b0c29da982bef3c"></a><!-- doxytag: member="channelmap.h::pa_channel_map_to_pretty_name" ref="e5ae807a631fc28a7b0c29da982bef3c" args="(const pa_channel_map *map) PA_GCC_PURE" -->
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<td class="memname">const char* pa_channel_map_to_pretty_name </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>map</em> </td>
<td> ) </td>
<td></td>
</tr>
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<div class="memdoc">
<p>
Tries to find a human readable text label for this channel mapping.
<p>
I.e. "Stereo", "Surround 7.1" and so on. If the channel mapping is unknown NULL will be returned. <dl class="since" compact><dt><b>Since:</b></dt><dd>0.9.15 </dd></dl>
</div>
</div><p>
<a class="anchor" name="5d4699c853806a999cbde869dbf7a7ad"></a><!-- doxytag: member="channelmap.h::pa_channel_map_valid" ref="5d4699c853806a999cbde869dbf7a7ad" args="(const pa_channel_map *map) PA_GCC_PURE" -->
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<td class="memname">int pa_channel_map_valid </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="structpa__channel__map.html">pa_channel_map</a> * </td>
<td class="paramname"> <em>map</em> </td>
<td> ) </td>
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<p>
Return non-zero if the specified channel map is considered valid.
<p>
</div>
</div><p>
<a class="anchor" name="b031af034e2e4da7ae725a7ff2ee8726"></a><!-- doxytag: member="channelmap.h::pa_channel_position_to_pretty_string" ref="b031af034e2e4da7ae725a7ff2ee8726" args="(pa_channel_position_t pos)" -->
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<td class="memname">const char* pa_channel_position_to_pretty_string </td>
<td>(</td>
<td class="paramtype"><a class="el" href="channelmap_8h.html#73a7ec05f42b21cb70ba4405b54177f6">pa_channel_position_t</a> </td>
<td class="paramname"> <em>pos</em> </td>
<td> ) </td>
<td></td>
</tr>
</table>
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<div class="memdoc">
<p>
Return a human readable text label for the specified channel position.
<p>
<dl class="since" compact><dt><b>Since:</b></dt><dd>0.9.7 </dd></dl>
</div>
</div><p>
<a class="anchor" name="219c7feb3ebeea1eec2670bfc35b01f2"></a><!-- doxytag: member="channelmap.h::pa_channel_position_to_string" ref="219c7feb3ebeea1eec2670bfc35b01f2" args="(pa_channel_position_t pos) PA_GCC_PURE" -->
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<td class="memname">const char* pa_channel_position_to_string </td>
<td>(</td>
<td class="paramtype"><a class="el" href="channelmap_8h.html#73a7ec05f42b21cb70ba4405b54177f6">pa_channel_position_t</a> </td>
<td class="paramname"> <em>pos</em> </td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Return a text label for the specified channel position.
<p>
</div>
</div><p>
</div>
<hr size="1"><address style="text-align: right;"><small>Generated on Wed Sep 2 04:18:19 2009 for PulseAudio by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.8 </small></address>
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