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<a href="node_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* PipeWire</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> *</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Copyright © 2018 Wim Taymans</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> *</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * The above copyright notice and this permission notice (including the next</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * paragraph) shall be included in all copies or substantial portions of the</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * Software.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> */</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#ifndef PIPEWIRE_NODE_H</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#define PIPEWIRE_NODE_H</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">struct </span><a class="code" href="classpw__node.html">pw_node</a>;</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#include <spa/node/event.h></span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#include <<a class="code" href="core_8h.html">pipewire/core.h</a>></span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#include <<a class="code" href="global_8h.html">pipewire/global.h</a>></span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#include <<a class="code" href="introspect_8h.html">pipewire/introspect.h</a>></span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#include <<a class="code" href="port_8h.html">pipewire/port.h</a>></span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#include <<a class="code" href="resource_8h.html">pipewire/resource.h</a>></span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="structpw__node__events.html"> 55</a></span> <span class="keyword">struct </span><a class="code" href="structpw__node__events.html">pw_node_events</a> {</div><div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="node_8h.html#a593a4f2610442e1956052f5c13de02f2"> 56</a></span> <span class="preprocessor">#define PW_VERSION_NODE_EVENTS 0</span></div><div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="structpw__node__events.html#a37faf21db57a7e95999db521fb1cbcab"> 57</a></span>  uint32_t <a class="code" href="structpw__node__events.html#a37faf21db57a7e95999db521fb1cbcab">version</a>;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div><div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="structpw__node__events.html#a5d803d186e1da8dc06cfe62418286d6d"> 60</a></span>  void (*<a class="code" href="structpw__node__events.html#a5d803d186e1da8dc06cfe62418286d6d">destroy</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>);</div><div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="structpw__node__events.html#aae1fa59095c854903aeb92620b6c7fce"> 62</a></span>  void (*<a class="code" href="structpw__node__events.html#aae1fa59095c854903aeb92620b6c7fce">free</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>);</div><div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="structpw__node__events.html#a262580b630f298b77b491eea272a3a8f"> 64</a></span>  void (*<a class="code" href="structpw__node__events.html#a262580b630f298b77b491eea272a3a8f">initialized</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>);</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div><div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="structpw__node__events.html#a7314a3a5ff29a5a49db433ba50c0e700"> 67</a></span>  void (*<a class="code" href="structpw__node__events.html#a7314a3a5ff29a5a49db433ba50c0e700">port_init</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keyword">struct </span><a class="code" href="classpw__port.html">pw_port</a> *port);</div><div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="structpw__node__events.html#a2d5626f4acca69cf8b95c8a94bb3ef9f"> 69</a></span>  void (*<a class="code" href="structpw__node__events.html#a2d5626f4acca69cf8b95c8a94bb3ef9f">port_added</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keyword">struct </span><a class="code" href="classpw__port.html">pw_port</a> *port);</div><div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="structpw__node__events.html#a34c1fd60aa00621e97f1e3c131f90fe8"> 71</a></span>  void (*<a class="code" href="structpw__node__events.html#a34c1fd60aa00621e97f1e3c131f90fe8">port_removed</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keyword">struct </span><a class="code" href="classpw__port.html">pw_port</a> *port);</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div><div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="structpw__node__events.html#acf451c8f69281a0a85fcf7c9890a5cf6"> 74</a></span>  void (*<a class="code" href="structpw__node__events.html#acf451c8f69281a0a85fcf7c9890a5cf6">info_changed</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structpw__node__info.html">pw_node_info</a> *info);</div><div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="structpw__node__events.html#abd23170b91eea75e00d35ddf43bbc823"> 76</a></span>  void (*<a class="code" href="structpw__node__events.html#abd23170b91eea75e00d35ddf43bbc823">port_info_changed</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keyword">struct </span><a class="code" href="classpw__port.html">pw_port</a> *port,</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structpw__port__info.html">pw_port_info</a> *info);</div><div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="structpw__node__events.html#a4e00778d17016f2840ca0ac0e1b118b9"> 79</a></span>  void (*<a class="code" href="structpw__node__events.html#a4e00778d17016f2840ca0ac0e1b118b9">active_changed</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keywordtype">bool</span> active);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="structpw__node__events.html#ad3c773e042a49ab3d4e4066e5ed515ba"> 82</a></span>  void (*<a class="code" href="structpw__node__events.html#ad3c773e042a49ab3d4e4066e5ed515ba">state_request</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keyword">enum</span> <a class="code" href="introspect_8h.html#ac493839c0b0a1d0b935969f2e990a2df">pw_node_state</a> state);</div><div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="structpw__node__events.html#a564ce5d0faa75fa7b14ec6baa43c7daa"> 84</a></span>  void (*<a class="code" href="structpw__node__events.html#a564ce5d0faa75fa7b14ec6baa43c7daa">state_changed</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keyword">enum</span> <a class="code" href="introspect_8h.html#ac493839c0b0a1d0b935969f2e990a2df">pw_node_state</a> old,</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">enum</span> <a class="code" href="introspect_8h.html#ac493839c0b0a1d0b935969f2e990a2df">pw_node_state</a> state, <span class="keyword">const</span> <span class="keywordtype">char</span> *error);</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="structpw__node__events.html#a34a6524370a9087ec5bbbd90202bf1e4"> 88</a></span>  void (*<a class="code" href="structpw__node__events.html#a34a6524370a9087ec5bbbd90202bf1e4">result</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keywordtype">int</span> seq, <span class="keywordtype">int</span> res, uint32_t type, <span class="keyword">const</span> <span class="keywordtype">void</span> *<a class="code" href="structpw__node__events.html#a34a6524370a9087ec5bbbd90202bf1e4">result</a>);</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div><div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="structpw__node__events.html#a2fafc0e08957794d7751cbeff8b976cd"> 91</a></span>  void (*<a class="code" href="structpw__node__events.html#a2fafc0e08957794d7751cbeff8b976cd">event</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keyword">const</span> <span class="keyword">struct </span>spa_event *<a class="code" href="structpw__node__events.html#a2fafc0e08957794d7751cbeff8b976cd">event</a>);</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div><div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="structpw__node__events.html#a101574ffa1d3f508f7e90e7d8de2ab35"> 94</a></span>  void (*<a class="code" href="structpw__node__events.html#a101574ffa1d3f508f7e90e7d8de2ab35">driver_changed</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keyword">struct </span><a class="code" href="classpw__node.html">pw_node</a> *old, <span class="keyword">struct </span><a class="code" href="classpw__node.html">pw_node</a> *driver);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00097"></a><span class="lineno"><a class="line" href="structpw__node__events.html#a2a0c2a81b5998253eeb1f3bfe05b57e0"> 97</a></span>  void (*<a class="code" href="structpw__node__events.html#a2a0c2a81b5998253eeb1f3bfe05b57e0">peer_added</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keyword">struct </span><a class="code" href="classpw__node.html">pw_node</a> *peer);</div><div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="structpw__node__events.html#a6ea6d7fb9248754549182bed2c770fb1"> 99</a></span>  void (*<a class="code" href="structpw__node__events.html#a6ea6d7fb9248754549182bed2c770fb1">peer_removed</a>) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keyword">struct </span><a class="code" href="classpw__node.html">pw_node</a> *peer);</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> };</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="keyword">struct </span><a class="code" href="classpw__node.html">pw_node</a> *</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <a class="code" href="classpw__node.html#ae65ce8c47bb46b01f3f8f62691e840ef">pw_node_new</a>(<span class="keyword">struct</span> <a class="code" href="classpw__core.html">pw_core</a> *core, </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *name, </div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">struct</span> <a class="code" href="structpw__properties.html">pw_properties</a> *properties, </div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordtype">size_t</span> user_data_size );</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="keywordtype">int</span> <a class="code" href="node_8h.html#a36b815abe57af30ae54a94dbd59bbb20">pw_node_register</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node, </div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">struct</span> <a class="code" href="classpw__client.html">pw_client</a> *owner, </div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keyword">struct</span> <a class="code" href="classpw__global.html">pw_global</a> *parent, </div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">struct</span> <a class="code" href="structpw__properties.html">pw_properties</a> *properties );</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="keywordtype">void</span> <a class="code" href="classpw__node.html#a797514cde71af23b5a27744d951ca83a">pw_node_destroy</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node);</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structpw__node__info.html">pw_node_info</a> *<a class="code" href="node_8h.html#acb7e0557ec2c7c95a18757dad387dd7c">pw_node_get_info</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node);</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="keywordtype">void</span> * <a class="code" href="node_8h.html#a13e057acc81dae7a8deb71a65ef326fb">pw_node_get_user_data</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node);</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="keyword">struct </span><a class="code" href="classpw__core.html">pw_core</a> *<a class="code" href="node_8h.html#aae589dae6a27dd5f2235d7108e3e8d9c">pw_node_get_core</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node);</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="keyword">struct </span><a class="code" href="classpw__global.html">pw_global</a> *<a class="code" href="node_8h.html#abf5963060e24f9a496b6941a45f78bf1">pw_node_get_global</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node);</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structpw__properties.html">pw_properties</a> *<a class="code" href="node_8h.html#a898e5e0afefe00d5154c9c1c64f84c53">pw_node_get_properties</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node);</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="keywordtype">int</span> <a class="code" href="node_8h.html#a01db9fe936ffca5e133a4f7acb699ca1">pw_node_update_properties</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node, <span class="keyword">const</span> <span class="keyword">struct</span> spa_dict *<a class="code" href="structpw__properties.html#a70aa5816bde60f5511f2308971794881">dict</a>);</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="keywordtype">int</span> <a class="code" href="node_8h.html#ab344cb1e6baabcaef981d1b88445b79c">pw_node_set_implementation</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node, <span class="keyword">struct</span> spa_node *spa_node);</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="keyword">struct </span>spa_node *<a class="code" href="node_8h.html#a43aca89a30f2cced48262819114baeb5">pw_node_get_implementation</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node);</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="keywordtype">void</span> <a class="code" href="node_8h.html#a2bb3fca14d3b5749df798bc517b02ae8">pw_node_add_listener</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node,</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">struct</span> spa_hook *listener,</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structpw__node__events.html">pw_node_events</a> *events,</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>);</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="keywordtype">int</span> <a class="code" href="node_8h.html#aa54a8f52d35bd9521ceb32dc7e950a85">pw_node_for_each_port</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node,</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keyword">enum</span> <a class="code" href="introspect_8h.html#a6e9e847059d68cbdb608abc8eb6b631d">pw_direction</a> direction,</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordtype">int</span> (*callback) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keyword">struct</span> <a class="code" href="classpw__port.html">pw_port</a> *port),</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>);</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="keywordtype">int</span> <a class="code" href="node_8h.html#adcf080ee0ada41c7d61cbc6b82e68c2c">pw_node_for_each_param</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node,</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordtype">int</span> seq, uint32_t param_id,</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  uint32_t index, uint32_t max,</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keyword">const</span> <span class="keyword">struct</span> spa_pod *filter,</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordtype">int</span> (*callback) (<span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>, <span class="keywordtype">int</span> seq,</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  uint32_t <span class="keywordtype">id</span>, uint32_t index, uint32_t next,</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keyword">struct</span> spa_pod *<a class="code" href="structparam.html">param</a>),</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordtype">void</span> *<a class="code" href="structdata.html">data</a>);</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="keyword">struct </span><a class="code" href="classpw__port.html">pw_port</a> *</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <a class="code" href="node_8h.html#ae457b2a0a17339a0ea724fb7248792d3">pw_node_find_port</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node, <span class="keyword">enum</span> <a class="code" href="introspect_8h.html#a6e9e847059d68cbdb608abc8eb6b631d">pw_direction</a> direction, uint32_t port_id);</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> uint32_t <a class="code" href="node_8h.html#ae040b5eb03ad653e474e1ef547adeeed">pw_node_get_free_port_id</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node, <span class="keyword">enum</span> <a class="code" href="introspect_8h.html#a6e9e847059d68cbdb608abc8eb6b631d">pw_direction</a> direction);</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="keywordtype">int</span> <a class="code" href="node_8h.html#a2502272c5765d1f2dab5afd890c05f62">pw_node_set_active</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node, <span class="keywordtype">bool</span> active);</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="keywordtype">bool</span> <a class="code" href="node_8h.html#ae8556f1a5560c142b586096ad32844b5">pw_node_is_active</a>(<span class="keyword">struct</span> <a class="code" href="classpw__node.html">pw_node</a> *node);</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> }</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="preprocessor">#endif </span><span class="comment">/* PIPEWIRE_NODE_H */</span><span class="preprocessor"></span></div><div class="ttc" id="node_8h_html_ab344cb1e6baabcaef981d1b88445b79c"><div class="ttname"><a href="node_8h.html#ab344cb1e6baabcaef981d1b88445b79c">pw_node_set_implementation</a></div><div class="ttdeci">int pw_node_set_implementation(struct pw_node *node, struct spa_node *spa_node)</div><div class="ttdoc">Set the node implementation.</div><div class="ttdef"><b>Definition:</b> node.c:1180</div></div>
<div class="ttc" id="structpw__properties_html"><div class="ttname"><a href="structpw__properties.html">pw_properties</a></div><div class="ttdoc">A collection of key/value pairs.</div><div class="ttdef"><b>Definition:</b> properties.h:43</div></div>
<div class="ttc" id="structpw__node__events_html_ad3c773e042a49ab3d4e4066e5ed515ba"><div class="ttname"><a href="structpw__node__events.html#ad3c773e042a49ab3d4e4066e5ed515ba">pw_node_events::state_request</a></div><div class="ttdeci">void(* state_request)(void *data, enum pw_node_state state)</div><div class="ttdoc">a new state is requested on the node</div><div class="ttdef"><b>Definition:</b> node.h:82</div></div>
<div class="ttc" id="structpw__node__events_html_a34c1fd60aa00621e97f1e3c131f90fe8"><div class="ttname"><a href="structpw__node__events.html#a34c1fd60aa00621e97f1e3c131f90fe8">pw_node_events::port_removed</a></div><div class="ttdeci">void(* port_removed)(void *data, struct pw_port *port)</div><div class="ttdoc">a port was removed</div><div class="ttdef"><b>Definition:</b> node.h:71</div></div>
<div class="ttc" id="classpw__node_html_ae65ce8c47bb46b01f3f8f62691e840ef"><div class="ttname"><a href="classpw__node.html#ae65ce8c47bb46b01f3f8f62691e840ef">pw_node::pw_node_new</a></div><div class="ttdeci">struct pw_node * pw_node_new(struct pw_core *core, const char *name, struct pw_properties *properties, size_t user_data_size)</div><div class="ttdoc">Create a new node.</div><div class="ttdef"><b>Definition:</b> node.c:838</div></div>
<div class="ttc" id="node_8h_html_a2502272c5765d1f2dab5afd890c05f62"><div class="ttname"><a href="node_8h.html#a2502272c5765d1f2dab5afd890c05f62">pw_node_set_active</a></div><div class="ttdeci">int pw_node_set_active(struct pw_node *node, bool active)</div><div class="ttdoc">Set a node active.</div><div class="ttdef"><b>Definition:</b> node.c:1559</div></div>
<div class="ttc" id="node_8h_html_ae457b2a0a17339a0ea724fb7248792d3"><div class="ttname"><a href="node_8h.html#ae457b2a0a17339a0ea724fb7248792d3">pw_node_find_port</a></div><div class="ttdeci">struct pw_port * pw_node_find_port(struct pw_node *node, enum pw_direction direction, uint32_t port_id)</div><div class="ttdoc">Find the port with direction and port_id or NULL when not found.</div><div class="ttdef"><b>Definition:</b> node.c:1390</div></div>
<div class="ttc" id="introspect_8h_html_ac493839c0b0a1d0b935969f2e990a2df"><div class="ttname"><a href="introspect_8h.html#ac493839c0b0a1d0b935969f2e990a2df">pw_node_state</a></div><div class="ttdeci">pw_node_state</div><div class="ttdoc">The different node states.</div><div class="ttdef"><b>Definition:</b> introspect.h:38</div></div>
<div class="ttc" id="node_8h_html_a36b815abe57af30ae54a94dbd59bbb20"><div class="ttname"><a href="node_8h.html#a36b815abe57af30ae54a94dbd59bbb20">pw_node_register</a></div><div class="ttdeci">int pw_node_register(struct pw_node *node, struct pw_client *owner, struct pw_global *parent, struct pw_properties *properties)</div><div class="ttdoc">Complete initialization of the node and register.</div><div class="ttdef"><b>Definition:</b> node.c:540</div></div>
<div class="ttc" id="node_8h_html_ae8556f1a5560c142b586096ad32844b5"><div class="ttname"><a href="node_8h.html#ae8556f1a5560c142b586096ad32844b5">pw_node_is_active</a></div><div class="ttdeci">bool pw_node_is_active(struct pw_node *node)</div><div class="ttdoc">Check if a node is active.</div><div class="ttdef"><b>Definition:</b> node.c:1581</div></div>
<div class="ttc" id="introspect_8h_html"><div class="ttname"><a href="introspect_8h.html">introspect.h</a></div></div>
<div class="ttc" id="structpw__properties_html_a70aa5816bde60f5511f2308971794881"><div class="ttname"><a href="structpw__properties.html#a70aa5816bde60f5511f2308971794881">pw_properties::dict</a></div><div class="ttdeci">struct spa_dict dict</div><div class="ttdoc">dictionary of key/values</div><div class="ttdef"><b>Definition:</b> properties.h:44</div></div>
<div class="ttc" id="node_8h_html_a13e057acc81dae7a8deb71a65ef326fb"><div class="ttname"><a href="node_8h.html#a13e057acc81dae7a8deb71a65ef326fb">pw_node_get_user_data</a></div><div class="ttdeci">void * pw_node_get_user_data(struct pw_node *node)</div><div class="ttdoc">Get node user_data.</div><div class="ttdef"><b>Definition:</b> node.c:966</div></div>
<div class="ttc" id="structpw__node__events_html_abd23170b91eea75e00d35ddf43bbc823"><div class="ttname"><a href="structpw__node__events.html#abd23170b91eea75e00d35ddf43bbc823">pw_node_events::port_info_changed</a></div><div class="ttdeci">void(* port_info_changed)(void *data, struct pw_port *port, const struct pw_port_info *info)</div><div class="ttdoc">a port on the node changed info</div><div class="ttdef"><b>Definition:</b> node.h:76</div></div>
<div class="ttc" id="core_8h_html"><div class="ttname"><a href="core_8h.html">core.h</a></div></div>
<div class="ttc" id="classpw__core_html"><div class="ttname"><a href="classpw__core.html">pw_core</a></div><div class="ttdoc">the core PipeWire object</div></div>
<div class="ttc" id="structpw__port__info_html"><div class="ttname"><a href="structpw__port__info.html">pw_port_info</a></div><div class="ttdef"><b>Definition:</b> introspect.h:196</div></div>
<div class="ttc" id="node_8h_html_adcf080ee0ada41c7d61cbc6b82e68c2c"><div class="ttname"><a href="node_8h.html#adcf080ee0ada41c7d61cbc6b82e68c2c">pw_node_for_each_param</a></div><div class="ttdeci">int pw_node_for_each_param(struct pw_node *node, int seq, uint32_t param_id, uint32_t index, uint32_t max, const struct spa_pod *filter, int(*callback)(void *data, int seq, uint32_t id, uint32_t index, uint32_t next, struct spa_pod *param), void *data)</div><div class="ttdef"><b>Definition:</b> node.c:1354</div></div>
<div class="ttc" id="global_8h_html"><div class="ttname"><a href="global_8h.html">global.h</a></div></div>
<div class="ttc" id="structpw__node__events_html_a7314a3a5ff29a5a49db433ba50c0e700"><div class="ttname"><a href="structpw__node__events.html#a7314a3a5ff29a5a49db433ba50c0e700">pw_node_events::port_init</a></div><div class="ttdeci">void(* port_init)(void *data, struct pw_port *port)</div><div class="ttdoc">a port is being initialized on the node</div><div class="ttdef"><b>Definition:</b> node.h:67</div></div>
<div class="ttc" id="structpw__node__events_html_a262580b630f298b77b491eea272a3a8f"><div class="ttname"><a href="structpw__node__events.html#a262580b630f298b77b491eea272a3a8f">pw_node_events::initialized</a></div><div class="ttdeci">void(* initialized)(void *data)</div><div class="ttdoc">the node is initialized</div><div class="ttdef"><b>Definition:</b> node.h:64</div></div>
<div class="ttc" id="structpw__node__events_html_a2fafc0e08957794d7751cbeff8b976cd"><div class="ttname"><a href="structpw__node__events.html#a2fafc0e08957794d7751cbeff8b976cd">pw_node_events::event</a></div><div class="ttdeci">void(* event)(void *data, const struct spa_event *event)</div><div class="ttdoc">an event is emited</div><div class="ttdef"><b>Definition:</b> node.h:91</div></div>
<div class="ttc" id="node_8h_html_a01db9fe936ffca5e133a4f7acb699ca1"><div class="ttname"><a href="node_8h.html#a01db9fe936ffca5e133a4f7acb699ca1">pw_node_update_properties</a></div><div class="ttdeci">int pw_node_update_properties(struct pw_node *node, const struct spa_dict *dict)</div><div class="ttdoc">Update the node properties.</div><div class="ttdef"><b>Definition:</b> node.c:1006</div></div>
<div class="ttc" id="structpw__node__events_html_a4e00778d17016f2840ca0ac0e1b118b9"><div class="ttname"><a href="structpw__node__events.html#a4e00778d17016f2840ca0ac0e1b118b9">pw_node_events::active_changed</a></div><div class="ttdeci">void(* active_changed)(void *data, bool active)</div><div class="ttdoc">the node active state changed</div><div class="ttdef"><b>Definition:</b> node.h:79</div></div>
<div class="ttc" id="node_8h_html_ae040b5eb03ad653e474e1ef547adeeed"><div class="ttname"><a href="node_8h.html#ae040b5eb03ad653e474e1ef547adeeed">pw_node_get_free_port_id</a></div><div class="ttdeci">uint32_t pw_node_get_free_port_id(struct pw_node *node, enum pw_direction direction)</div><div class="ttdoc">Get a free unused port_id from the node.</div><div class="ttdef"><b>Definition:</b> node.c:1425</div></div>
<div class="ttc" id="node_8h_html_aae589dae6a27dd5f2235d7108e3e8d9c"><div class="ttname"><a href="node_8h.html#aae589dae6a27dd5f2235d7108e3e8d9c">pw_node_get_core</a></div><div class="ttdeci">struct pw_core * pw_node_get_core(struct pw_node *node)</div><div class="ttdoc">Get the core of this node.</div><div class="ttdef"><b>Definition:</b> node.c:972</div></div>
<div class="ttc" id="resource_8h_html"><div class="ttname"><a href="resource_8h.html">resource.h</a></div></div>
<div class="ttc" id="classpw__client_html"><div class="ttname"><a href="classpw__client.html">pw_client</a></div><div class="ttdoc">PipeWire client object class.</div></div>
<div class="ttc" id="node_8h_html_abf5963060e24f9a496b6941a45f78bf1"><div class="ttname"><a href="node_8h.html#abf5963060e24f9a496b6941a45f78bf1">pw_node_get_global</a></div><div class="ttdeci">struct pw_global * pw_node_get_global(struct pw_node *node)</div><div class="ttdoc">Get the global of this node.</div><div class="ttdef"><b>Definition:</b> node.c:978</div></div>
<div class="ttc" id="structparam_html"><div class="ttname"><a href="structparam.html">param</a></div><div class="ttdef"><b>Definition:</b> stream.c:75</div></div>
<div class="ttc" id="structpw__node__events_html_a37faf21db57a7e95999db521fb1cbcab"><div class="ttname"><a href="structpw__node__events.html#a37faf21db57a7e95999db521fb1cbcab">pw_node_events::version</a></div><div class="ttdeci">uint32_t version</div><div class="ttdef"><b>Definition:</b> node.h:57</div></div>
<div class="ttc" id="structpw__node__events_html_acf451c8f69281a0a85fcf7c9890a5cf6"><div class="ttname"><a href="structpw__node__events.html#acf451c8f69281a0a85fcf7c9890a5cf6">pw_node_events::info_changed</a></div><div class="ttdeci">void(* info_changed)(void *data, const struct pw_node_info *info)</div><div class="ttdoc">the node info changed</div><div class="ttdef"><b>Definition:</b> node.h:74</div></div>
<div class="ttc" id="structpw__node__events_html_a2d5626f4acca69cf8b95c8a94bb3ef9f"><div class="ttname"><a href="structpw__node__events.html#a2d5626f4acca69cf8b95c8a94bb3ef9f">pw_node_events::port_added</a></div><div class="ttdeci">void(* port_added)(void *data, struct pw_port *port)</div><div class="ttdoc">a port was added</div><div class="ttdef"><b>Definition:</b> node.h:69</div></div>
<div class="ttc" id="node_8h_html_aa54a8f52d35bd9521ceb32dc7e950a85"><div class="ttname"><a href="node_8h.html#aa54a8f52d35bd9521ceb32dc7e950a85">pw_node_for_each_port</a></div><div class="ttdeci">int pw_node_for_each_port(struct pw_node *node, enum pw_direction direction, int(*callback)(void *data, struct pw_port *port), void *data)</div><div class="ttdoc">Iterate the ports in the given direction.</div><div class="ttdef"><b>Definition:</b> node.c:1309</div></div>
<div class="ttc" id="classpw__node_html"><div class="ttname"><a href="classpw__node.html">pw_node</a></div><div class="ttdoc">PipeWire node class.</div></div>
<div class="ttc" id="port_8h_html"><div class="ttname"><a href="port_8h.html">port.h</a></div></div>
<div class="ttc" id="structpw__node__events_html_aae1fa59095c854903aeb92620b6c7fce"><div class="ttname"><a href="structpw__node__events.html#aae1fa59095c854903aeb92620b6c7fce">pw_node_events::free</a></div><div class="ttdeci">void(* free)(void *data)</div><div class="ttdoc">the node is about to be freed</div><div class="ttdef"><b>Definition:</b> node.h:62</div></div>
<div class="ttc" id="classpw__global_html"><div class="ttname"><a href="classpw__global.html">pw_global</a></div><div class="ttdoc">A global object visible to remote clients.</div></div>
<div class="ttc" id="node_8h_html_acb7e0557ec2c7c95a18757dad387dd7c"><div class="ttname"><a href="node_8h.html#acb7e0557ec2c7c95a18757dad387dd7c">pw_node_get_info</a></div><div class="ttdeci">const struct pw_node_info * pw_node_get_info(struct pw_node *node)</div><div class="ttdoc">Get the node info.</div><div class="ttdef"><b>Definition:</b> node.c:960</div></div>
<div class="ttc" id="node_8h_html_a898e5e0afefe00d5154c9c1c64f84c53"><div class="ttname"><a href="node_8h.html#a898e5e0afefe00d5154c9c1c64f84c53">pw_node_get_properties</a></div><div class="ttdeci">const struct pw_properties * pw_node_get_properties(struct pw_node *node)</div><div class="ttdoc">Get the node properties.</div><div class="ttdef"><b>Definition:</b> node.c:984</div></div>
<div class="ttc" id="structpw__node__events_html_a6ea6d7fb9248754549182bed2c770fb1"><div class="ttname"><a href="structpw__node__events.html#a6ea6d7fb9248754549182bed2c770fb1">pw_node_events::peer_removed</a></div><div class="ttdeci">void(* peer_removed)(void *data, struct pw_node *peer)</div><div class="ttdoc">a peer was removed</div><div class="ttdef"><b>Definition:</b> node.h:99</div></div>
<div class="ttc" id="structpw__node__events_html_a101574ffa1d3f508f7e90e7d8de2ab35"><div class="ttname"><a href="structpw__node__events.html#a101574ffa1d3f508f7e90e7d8de2ab35">pw_node_events::driver_changed</a></div><div class="ttdeci">void(* driver_changed)(void *data, struct pw_node *old, struct pw_node *driver)</div><div class="ttdoc">the driver of the node changed</div><div class="ttdef"><b>Definition:</b> node.h:94</div></div>
<div class="ttc" id="structpw__node__events_html_a34a6524370a9087ec5bbbd90202bf1e4"><div class="ttname"><a href="structpw__node__events.html#a34a6524370a9087ec5bbbd90202bf1e4">pw_node_events::result</a></div><div class="ttdeci">void(* result)(void *data, int seq, int res, uint32_t type, const void *result)</div><div class="ttdoc">a result was received</div><div class="ttdef"><b>Definition:</b> node.h:88</div></div>
<div class="ttc" id="structpw__node__events_html_a564ce5d0faa75fa7b14ec6baa43c7daa"><div class="ttname"><a href="structpw__node__events.html#a564ce5d0faa75fa7b14ec6baa43c7daa">pw_node_events::state_changed</a></div><div class="ttdeci">void(* state_changed)(void *data, enum pw_node_state old, enum pw_node_state state, const char *error)</div><div class="ttdoc">the state of the node changed</div><div class="ttdef"><b>Definition:</b> node.h:84</div></div>
<div class="ttc" id="node_8h_html_a2bb3fca14d3b5749df798bc517b02ae8"><div class="ttname"><a href="node_8h.html#a2bb3fca14d3b5749df798bc517b02ae8">pw_node_add_listener</a></div><div class="ttdeci">void pw_node_add_listener(struct pw_node *node, struct spa_hook *listener, const struct pw_node_events *events, void *data)</div><div class="ttdoc">Add an event listener.</div><div class="ttdef"><b>Definition:</b> node.c:1220</div></div>
<div class="ttc" id="structpw__node__events_html_a5d803d186e1da8dc06cfe62418286d6d"><div class="ttname"><a href="structpw__node__events.html#a5d803d186e1da8dc06cfe62418286d6d">pw_node_events::destroy</a></div><div class="ttdeci">void(* destroy)(void *data)</div><div class="ttdoc">the node is destroyed</div><div class="ttdef"><b>Definition:</b> node.h:60</div></div>
<div class="ttc" id="structpw__node__events_html_a2a0c2a81b5998253eeb1f3bfe05b57e0"><div class="ttname"><a href="structpw__node__events.html#a2a0c2a81b5998253eeb1f3bfe05b57e0">pw_node_events::peer_added</a></div><div class="ttdeci">void(* peer_added)(void *data, struct pw_node *peer)</div><div class="ttdoc">a peer was added</div><div class="ttdef"><b>Definition:</b> node.h:97</div></div>
<div class="ttc" id="classpw__port_html"><div class="ttname"><a href="classpw__port.html">pw_port</a></div><div class="ttdoc">The port object.</div></div>
<div class="ttc" id="structpw__node__info_html"><div class="ttname"><a href="structpw__node__info.html">pw_node_info</a></div><div class="ttdoc">The node information.</div><div class="ttdef"><b>Definition:</b> introspect.h:167</div></div>
<div class="ttc" id="node_8h_html_a43aca89a30f2cced48262819114baeb5"><div class="ttname"><a href="node_8h.html#a43aca89a30f2cced48262819114baeb5">pw_node_get_implementation</a></div><div class="ttdeci">struct spa_node * pw_node_get_implementation(struct pw_node *node)</div><div class="ttdoc">Get the node implementation.</div><div class="ttdef"><b>Definition:</b> node.c:1214</div></div>
<div class="ttc" id="introspect_8h_html_a6e9e847059d68cbdb608abc8eb6b631d"><div class="ttname"><a href="introspect_8h.html#a6e9e847059d68cbdb608abc8eb6b631d">pw_direction</a></div><div class="ttdeci">pw_direction</div><div class="ttdoc">The direction of a port.</div><div class="ttdef"><b>Definition:</b> introspect.h:52</div></div>
<div class="ttc" id="structpw__node__events_html"><div class="ttname"><a href="structpw__node__events.html">pw_node_events</a></div><div class="ttdoc">Node events, listen to them with pw_node_add_listener.</div><div class="ttdef"><b>Definition:</b> node.h:55</div></div>
<div class="ttc" id="structdata_html"><div class="ttname"><a href="structdata.html">data</a></div><div class="ttdef"><b>Definition:</b> stream.c:69</div></div>
<div class="ttc" id="classpw__node_html_a797514cde71af23b5a27744d951ca83a"><div class="ttname"><a href="classpw__node.html#a797514cde71af23b5a27744d951ca83a">pw_node::pw_node_destroy</a></div><div class="ttdeci">SPA_EXPORT void pw_node_destroy(struct pw_node *node)</div><div class="ttdoc">Destroy a node.</div><div class="ttdef"><b>Definition:</b> node.c:1237</div></div>
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