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von raredesign | Dez 3, 2019 | Allgemein | 0 Kommentare
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<a href="SndPcm_8hxx.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">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * UNIVERSITAT POMPEU FABRA</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"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * This program is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * the Free Software Foundation; either version 2 of the License, or</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * (at your option) any later version.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * GNU General Public License for more details.</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"> * You should have received a copy of the GNU General Public License</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * along with this program; if not, write to the Free Software</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">/* alsa 0.9 backwards compatibility for alsa 1.0 */</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"><a class="code" href="SndPcm_8hxx.html#a2372e2cfed6f7e9e9700b5383ad5b623"> 23</a></span> <span class="preprocessor">#define ALSA_PCM_OLD_HW_PARAMS_API</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"><a class="code" href="SndPcm_8hxx.html#a6b0a8dac220691b15e94168927af396f"> 24</a></span> <span class="preprocessor"></span><span class="preprocessor">#define ALSA_PCM_OLD_SW_PARAMS_API</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <alsa/asoundlib.h></span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="Err_8hxx.html">Err.hxx</a>"</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="line"><a name="l00029"></a><span class="lineno"><a class="code" href="classSndPcmError.html"> 29</a></span> <span class="keyword">class </span><a class="code" href="classSndPcmError.html">SndPcmError</a> : <span class="keyword">public</span> <a class="code" href="classCLAM_1_1Err.html" title="Base class for the exception handling classes.">CLAM::Err</a></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> {</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00032"></a><span class="lineno"><a class="code" href="classSndPcmError.html#a86789157ba10192477fc18f87f1a6b10"> 32</a></span>  <a class="code" href="classSndPcmError.html#a86789157ba10192477fc18f87f1a6b10">SndPcmError</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* _str)</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  :<a class="code" href="classCLAM_1_1Err.html#a8ddb0c6d67e04e5f2c4f817df8d1db77">Err</a>(_str){</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  }</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> };</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a name="l00038"></a><span class="lineno"><a class="code" href="classSndPcm.html"> 38</a></span> <span class="keyword">class </span><a class="code" href="classSndPcm.html">SndPcm</a></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> {</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="code" href="classSndPcm.html#a69d20b067de00af6832396bb46e1498f"> 41</a></span>  snd_pcm_format_t <a class="code" href="classSndPcm.html#a69d20b067de00af6832396bb46e1498f">format</a>;</div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="code" href="classSndPcm.html#ac7b4c11cb3ef8eabf64bcdd7f6ffeacb"> 42</a></span>  <span class="keywordtype">int</span> <a class="code" href="classSndPcm.html#ac7b4c11cb3ef8eabf64bcdd7f6ffeacb">rate</a>;</div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="code" href="classSndPcm.html#af772688b9e89ce68ce06c0292d3bdaab"> 43</a></span>  <span class="keywordtype">int</span> <a class="code" href="classSndPcm.html#af772688b9e89ce68ce06c0292d3bdaab">channels_in</a>;</div>
<div class="line"><a name="l00044"></a><span class="lineno"><a class="code" href="classSndPcm.html#a8d7f829c71ab098a62880e1f6f4a371a"> 44</a></span>  <span class="keywordtype">int</span> <a class="code" href="classSndPcm.html#a8d7f829c71ab098a62880e1f6f4a371a">channels_out</a>;</div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="code" href="classSndPcm.html#a95ed75a0386db5d1751ff9beb087aa02"> 45</a></span>  <span class="keywordtype">int</span> <a class="code" href="classSndPcm.html#a95ed75a0386db5d1751ff9beb087aa02">latency</a>;</div>
<div class="line"><a name="l00046"></a><span class="lineno"><a class="code" href="classSndPcm.html#acce63621302e1c60bd19538d11a30b0d"> 46</a></span>  <span class="keywordtype">int</span> <a class="code" href="classSndPcm.html#acce63621302e1c60bd19538d11a30b0d">latency_min</a>; <span class="comment">/* in frames / 2 */</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="code" href="classSndPcm.html#a3b549af29237b27c4c0726a3cb19c81c"> 47</a></span>  <span class="keywordtype">int</span> <a class="code" href="classSndPcm.html#a3b549af29237b27c4c0726a3cb19c81c">latency_max</a>; <span class="comment">/* in frames / 2 */</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"><a class="code" href="classSndPcm.html#aacc66ed87a72ef72c867160764be7d8d"> 48</a></span>  <span class="keywordtype">int</span> <a class="code" href="classSndPcm.html#aacc66ed87a72ef72c867160764be7d8d">block</a>; <span class="comment">/* block mode */</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"><a class="code" href="classSndPcm.html#adabbbf79b9b1082430c5b57bc2e60ae1"> 49</a></span>  <span class="keywordtype">int</span> <a class="code" href="classSndPcm.html#adabbbf79b9b1082430c5b57bc2e60ae1">tick_time</a>; <span class="comment">/* disabled, otherwise in us */</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"><a class="code" href="classSndPcm.html#ad12bdd7418ead1442bdc4e66ac50a225"> 50</a></span>  <span class="keywordtype">int</span> <a class="code" href="classSndPcm.html#ad12bdd7418ead1442bdc4e66ac50a225">tick_time_ok</a>;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
<div class="line"><a name="l00052"></a><span class="lineno"><a class="code" href="classSndPcm.html#aec1562d426255303d09ed7bbd3213932"> 52</a></span>  snd_pcm_t *<a class="code" href="classSndPcm.html#aec1562d426255303d09ed7bbd3213932">phandle</a>, *<a class="code" href="classSndPcm.html#ad708007bbb47127050c5c09873aedee6">chandle</a>;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a name="l00054"></a><span class="lineno"><a class="code" href="classSndPcm.html#a2eb481551013f64a75ce5b4e9de200b6"> 54</a></span>  <span class="keywordtype">char</span> <a class="code" href="classSndPcm.html#a2eb481551013f64a75ce5b4e9de200b6">error_str</a>[1024];</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">void</span> <a class="code" href="classSndPcm.html#ab03f94b194f935107682cd571d297ce2">cat_error</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* fmt,...);</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="code" href="classSndPcm.html#aca5e9883394ca154043b95026ffa48f2"> 57</a></span>  <span class="keywordtype">void</span> <a class="code" href="classSndPcm.html#aca5e9883394ca154043b95026ffa48f2">ReadBuf</a>(<span class="keywordtype">short</span>* data)</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  {</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordtype">int</span> res = readbuf(<a class="code" href="classSndPcm.html#ad708007bbb47127050c5c09873aedee6">chandle</a>,(<span class="keywordtype">char</span>*) data,<a class="code" href="classSndPcm.html#a95ed75a0386db5d1751ff9beb087aa02">latency</a>);</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">if</span> (res>=0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">if</span> (res == -EPIPE)</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment">// throw(SndPcmError("SndPcm::ReadBuf() Buffer Overrun!\n"));</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <a class="code" href="classSndPcm.html#a379cb76505d50e6b682cacc97f6f286c">RecoverXRun</a>(data);</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  }</div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="code" href="classSndPcm.html#ad6df1c532a5933a4d18e0fcb474ff0bc"> 65</a></span>  <span class="keywordtype">void</span> <a class="code" href="classSndPcm.html#ad6df1c532a5933a4d18e0fcb474ff0bc">WriteBuf</a>(<span class="keywordtype">short</span>* data)</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  {</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordtype">int</span> res = writebuf(<a class="code" href="classSndPcm.html#aec1562d426255303d09ed7bbd3213932">phandle</a>,(<span class="keywordtype">char</span>*) data,<a class="code" href="classSndPcm.html#a95ed75a0386db5d1751ff9beb087aa02">latency</a>);</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">if</span> (res>=0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">if</span> (res == -EPIPE)</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment">// throw(SndPcmError("SndPcm::WriteBuf() Buffer Underrun!\n"));</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="classSndPcm.html#a379cb76505d50e6b682cacc97f6f286c">RecoverXRun</a>(data);</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  }</div>
<div class="line"><a name="l00073"></a><span class="lineno"><a class="code" href="classSndPcm.html#a5d64d5e1479ab1a653525ed7cf223119"> 73</a></span>  <span class="keywordtype">void</span> <a class="code" href="classSndPcm.html#aca5e9883394ca154043b95026ffa48f2">ReadBuf</a>(<span class="keywordtype">short</span>* data,<span class="keywordtype">int</span> len)</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  {</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">int</span> res = readbuf(<a class="code" href="classSndPcm.html#ad708007bbb47127050c5c09873aedee6">chandle</a>,(<span class="keywordtype">char</span>*) data,len);</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (res>=0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">if</span> (res == -EPIPE)</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment">// throw(SndPcmError("SndPcm::ReadBuf() Buffer Overrun!\n"));</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <a class="code" href="classSndPcm.html#a379cb76505d50e6b682cacc97f6f286c">RecoverXRun</a>(data);</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  }</div>
<div class="line"><a name="l00081"></a><span class="lineno"><a class="code" href="classSndPcm.html#ae58758cf395feceb4f6921103ce58369"> 81</a></span>  <span class="keywordtype">void</span> <a class="code" href="classSndPcm.html#ad6df1c532a5933a4d18e0fcb474ff0bc">WriteBuf</a>(<span class="keywordtype">short</span>* data,<span class="keywordtype">int</span> len)</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  {</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">int</span> res = writebuf(<a class="code" href="classSndPcm.html#aec1562d426255303d09ed7bbd3213932">phandle</a>,(<span class="keywordtype">char</span>*) data,len);</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">if</span> (res>=0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">if</span> (res == -EPIPE)</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment">// throw(SndPcmError("SndPcm::WriteBuf() Buffer Underrun!\n"));</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <a class="code" href="classSndPcm.html#a379cb76505d50e6b682cacc97f6f286c">RecoverXRun</a>(data);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  }</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="classSndPcm.html#a7ccd0c76d40c754cfb1b42f6e156c5dd">SndPcm</a>(<span class="keywordtype">int</span> irate,<span class="keywordtype">int</span> ichannels_in,<span class="keywordtype">int</span> ichannels_out,<span class="keywordtype">int</span> ilatency,</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* pdevice,<span class="keyword">const</span> <span class="keywordtype">char</span>* cdevice);</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="classSndPcm.html#a9b3bb0eacb61b9b2cf4989b348ac584f">~SndPcm</a>();</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordtype">void</span> <a class="code" href="classSndPcm.html#a818f450b11734ca82705cd8cf270ce87">Start</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordtype">void</span> <a class="code" href="classSndPcm.html#a86845c7908a22a5f6e5c4d51ab50b93e">Stop</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordtype">void</span> <a class="code" href="classSndPcm.html#a379cb76505d50e6b682cacc97f6f286c">RecoverXRun</a>(<span class="keywordtype">short</span>* data);</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  </div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordtype">void</span> <a class="code" href="classSndPcm.html#a1960c2b97abec4ffebba0dc780f573da">Poll</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="keyword">private</span>:</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment"> * The functions which follow are taken from the latency test included</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment"> * in the ALSA source distribution, with the following copyright note:</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment"> * Latency test program</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment"> * Author: Jaroslav Kysela <perex@suse.cz></span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment"> * Author of bandpass filter sweep effect:</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment"> * Maarten de Boer <mdeboer@iua.upf.es></span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment"> * This small demo program can be used for measuring latency between</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment"> * capture and playback. This latency is measured from driver (diff when</span></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="comment"> * playback and capture was started). Scheduler is set to SCHED_RR.</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment"> * This program is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"> * it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment"> * the Free Software Foundation; either version 2 of the License, or</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment"> * (at your option) any later version.</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment"> * This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment"> * GNU General Public License for more details.</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment"> * You should have received a copy of the GNU General Public License</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment"> * along with this program; if not, write to the Free Software</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment"> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordtype">int</span> setparams_stream(snd_pcm_t *handle,</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  snd_pcm_hw_params_t *params,</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordtype">int</span> channels,</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *<span class="keywordtype">id</span>);</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordtype">int</span> setparams_bufsize(snd_pcm_t *handle,</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  snd_pcm_hw_params_t *params,</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  snd_pcm_hw_params_t *tparams,</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  snd_pcm_uframes_t bufsize,</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *<span class="keywordtype">id</span>);</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordtype">int</span> setparams_set(snd_pcm_t *handle,</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  snd_pcm_hw_params_t *params,</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  snd_pcm_sw_params_t *swparams,</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *<span class="keywordtype">id</span>);</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordtype">int</span> setparams(snd_pcm_t *<a class="code" href="classSndPcm.html#aec1562d426255303d09ed7bbd3213932">phandle</a>, snd_pcm_t *<a class="code" href="classSndPcm.html#ad708007bbb47127050c5c09873aedee6">chandle</a>, <span class="keywordtype">int</span> *bufsize);</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordtype">long</span> readbuf(snd_pcm_t *handle, <span class="keywordtype">char</span> *buf, <span class="keywordtype">long</span> len);</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordtype">long</span> writebuf(snd_pcm_t *handle, <span class="keywordtype">char</span> *buf, <span class="keywordtype">long</span> len);</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> };</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div>
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