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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// SPDX-FileCopyrightText: Copyright (C) 2019 swift Project Community / Contributors</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-swift-pilot-client-1</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>  </div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include "<a class="code" href="audioutilities_8h.html">audioutilities.h</a>"</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include "<a class="code" href="audiodeviceinfolist_8h.html">blackmisc/audio/audiodeviceinfolist.h</a>"</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#include "<a class="code" href="buildconfig_8h.html">blackconfig/buildconfig.h</a>"</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>  </div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include <QStringBuilder></span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <QAudioInput></span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <QAudioOutput></span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>  </div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="keyword">using namespace </span>BlackConfig;</div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="keyword">using namespace </span>BlackMisc::Audio;</div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>  </div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">namespace </span>BlackSound</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> {</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html">QVector<float></a> convertBytesTo32BitFloatPCM(<span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qbytearray.html">QByteArray</a> &input)</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  {</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <span class="keywordtype">int</span> inputSamples = input.<a class="codeRef" href="http://doc.qt.io/qt-5/qbytearray.html#size">size</a>() / 2; <span class="comment">// 16 bit input, so 2 bytes per sample</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html">QVector<float></a> output;</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  output.<a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html#fill">fill</a>(0, inputSamples);</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> n = 0; n < inputSamples; n++)</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>  output[n] = *<span class="keyword">reinterpret_cast<</span><span class="keyword">const </span>qint16 *<span class="keyword">></span>(input.<a class="codeRef" href="http://doc.qt.io/qt-5/qbytearray.html#data">data</a>() + n * 2);</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  output[n] /= 32767.0f;</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="keywordflow">return</span> output;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  }</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>  <a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html">QVector<qint16></a> convertBytesTo16BitPCM(<span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qbytearray.html">QByteArray</a> &input)</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  {</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> inputSamples = input.<a class="codeRef" href="http://doc.qt.io/qt-5/qbytearray.html#size">size</a>() / 2; <span class="comment">// 16 bit input, so 2 bytes per sample</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html">QVector<qint16></a> output;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  output.<a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html#fill">fill</a>(0, inputSamples);</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> n = 0; n < inputSamples; n++)</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  {</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  output[n] = *<span class="keyword">reinterpret_cast<</span><span class="keyword">const </span>qint16 *<span class="keyword">></span>(input.<a class="codeRef" href="http://doc.qt.io/qt-5/qbytearray.html#data">data</a>() + n * 2);</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="keywordflow">return</span> output;</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  }</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html">QVector<qint16></a> convertFloatBytesTo16BitPCM(<span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qbytearray.html">QByteArray</a> &input)</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  {</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  Q_UNUSED(input)</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="comment">// qFatal("Not implemented");</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">return</span> {};</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  }</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  </div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html">QVector<float></a> convertFromMonoToStereo(<span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html">QVector<float></a> &mono)</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  {</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html">QVector<float></a> stereo;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  stereo.<a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html#reserve">reserve</a>(mono.<a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html#size">size</a>() * 2);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">for</span> (<span class="keywordtype">float</span> sample : mono)</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  {</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  stereo << sample;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  stereo << sample;</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="keywordflow">return</span> stereo;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  </div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html">QVector<qint16></a> convertFromStereoToMono(<span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html">QVector<qint16></a> &stereo)</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  {</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html">QVector<qint16></a> mono;</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  mono.<a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html#reserve">reserve</a>(stereo.<a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html#size">size</a>() / 2);</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < stereo.<a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html#size">size</a>(); i = i + 2)</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  {</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  mono.<a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html#append">append</a>(stereo.<a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html#at">at</a>(i));</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  }</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> mono;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  </div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html">QVector<float></a> convertFromShortToFloat(<span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html">QVector<qint16></a> &input)</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>  <a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html">QVector<float></a> output;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> sample : input)</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  {</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  output.<a class="codeRef" href="http://doc.qt.io/qt-5/qvector.html#push_back">push_back</a>(sample / 32768.0f);</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  }</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">return</span> output;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  }</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>  QAudioDeviceInfo getLowestLatencyDevice(<span class="keyword">const</span> <a class="code" href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html">CAudioDeviceInfo</a> &device, QAudioFormat &format)</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  {</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">if</span> (device.<a class="code" href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html#a5110ae5bdf1adb8fd431094bb31318d2">isDefault</a>() || !device.<a class="code" href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html#af62afa18f20f98a48be41e06d19aa13b">isValid</a>())</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  {</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">const</span> QAudioDeviceInfo defDevice = device.<a class="code" href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html#a23949dbb1611e26b062af044c05e5d42">isInputDevice</a>() ? QAudioDeviceInfo::defaultInputDevice() : QAudioDeviceInfo::defaultOutputDevice();</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> (!defDevice.isFormatSupported(format))</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  {</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  format = defDevice.nearestFormat(format);</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  }</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">return</span> defDevice;</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  }</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  </div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qlist.html">QList<QAudioDeviceInfo></a> allQtDevices =</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  device.<a class="code" href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html#a23949dbb1611e26b062af044c05e5d42">isInputDevice</a>() ?</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  CAudioDeviceInfoList::allQtInputDevices() :</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <a class="code" href="class_black_misc_1_1_audio_1_1_c_audio_device_info_list.html">CAudioDeviceInfoList</a>::allQtOutputDevices();</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  </div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="comment">// Find the one with lowest latency.</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <a class="codeRef" href="http://doc.qt.io/qt-5/qlist.html">QList<QAudioDeviceInfo></a> supportedDevices;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> QAudioDeviceInfo &d : allQtDevices)</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  {</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">if</span> (d.deviceName() == device.<a class="code" href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html#a5ce5014f78322b89fb74efce4c541955">getName</a>())</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  {</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">if</span> (!d.isFormatSupported(format))</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  {</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="comment">// Check whether the nearest format is acceptable for our needs</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keyword">const</span> QAudioFormat nearestFormat = d.nearestFormat(format);</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">if</span> (nearestFormat.sampleRate() != format.sampleRate() ||</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  nearestFormat.sampleSize() != format.sampleSize() ||</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  nearestFormat.sampleType() != format.sampleType() ||</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  nearestFormat.byteOrder() != format.byteOrder() ||</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  nearestFormat.codec() != format.codec())</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  {</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  }</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  }</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  supportedDevices.<a class="codeRef" href="http://doc.qt.io/qt-5/qlist.html#push_back">push_back</a>(d);</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  }</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  }</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  </div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">if</span> (supportedDevices.<a class="codeRef" href="http://doc.qt.io/qt-5/qlist.html#isEmpty">isEmpty</a>()) { <span class="keywordflow">return</span> {}; }</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  </div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  QAudioDeviceInfo deviceWithLowestLatency = supportedDevices.<a class="codeRef" href="http://doc.qt.io/qt-5/qlist.html#at">at</a>(0);</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  </div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">if</span> (supportedDevices.<a class="codeRef" href="http://doc.qt.io/qt-5/qlist.html#size">size</a>() > 1)</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  {</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  QAudioFormat nearestFormat = format;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordtype">int</span> lowestBufferSize = std::numeric_limits<int>::max();</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> QAudioDeviceInfo &d : supportedDevices)</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  {</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordtype">int</span> bufferSize = 0;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">if</span> (device.<a class="code" href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html#af4ce0ba5c51c632dde2d0785215db4ec">getType</a>() == CAudioDeviceInfo::InputDevice)</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  {</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  QAudioInput input(d, d.nearestFormat(format));</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  input.start();</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  input.stop();</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  bufferSize = input.bufferSize();</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  }</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  {</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  QAudioOutput output(d, d.nearestFormat(format));</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  output.start();</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  output.stop();</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  bufferSize = output.bufferSize();</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>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">if</span> (bufferSize < lowestBufferSize)</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  {</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  deviceWithLowestLatency = d;</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  nearestFormat = d.nearestFormat(format);</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  lowestBufferSize = bufferSize;</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  }</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  }</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  format = nearestFormat;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  }</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">return</span> deviceWithLowestLatency;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  }</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  </div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  QAudioDeviceInfo getHighestCompatibleOutputDevice(<span class="keyword">const</span> <a class="code" href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html">CAudioDeviceInfo</a> &device, QAudioFormat &format)</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  {</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">if</span> (device.<a class="code" href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html#a5110ae5bdf1adb8fd431094bb31318d2">isDefault</a>()) { <span class="keywordflow">return</span> CAudioDeviceInfoList::defaultQtOutputDevice(); }</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qlist.html">QList<QAudioDeviceInfo></a> allQtDevices = CAudioDeviceInfoList::allQtOutputDevices();</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  </div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <a class="codeRef" href="http://doc.qt.io/qt-5/qlist.html">QList<QAudioDeviceInfo></a> supportedDevices;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> QAudioDeviceInfo &d : allQtDevices)</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  {</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">if</span> (d.deviceName() == device.<a class="code" href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html#a5ce5014f78322b89fb74efce4c541955">getName</a>())</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  {</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="comment">// exact match, format supported</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">if</span> (d.isFormatSupported(format)) { <span class="keywordflow">return</span> d; }</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  }</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  supportedDevices.<a class="codeRef" href="http://doc.qt.io/qt-5/qlist.html#push_back">push_back</a>(d);</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  }</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  </div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="comment">// no suitable device</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">if</span> (supportedDevices.<a class="codeRef" href="http://doc.qt.io/qt-5/qlist.html#isEmpty">isEmpty</a>())</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  {</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  format = QAudioFormat();</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">return</span> QAudioDeviceInfo();</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>  </div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">// here we could "search the best device", currently only first is taken</span></div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  QAudioDeviceInfo usedDevice = supportedDevices.<a class="codeRef" href="http://doc.qt.io/qt-5/qlist.html#front">front</a>();</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">if</span> (!usedDevice.isFormatSupported(format))</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  {</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  format = usedDevice.nearestFormat(format);</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  }</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">return</span> usedDevice;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  }</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  </div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html">QString</a> toQString(<span class="keyword">const</span> QAudioFormat &format)</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  {</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keywordflow">return</span> QStringLiteral(<span class="stringliteral">"Sample rate: %1 channels: %2 sample size: %3 codec: %4 order: %5 type: %6 bytes/frame: %7"</span>)</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  .<a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html#arg-1">arg</a>(format.sampleRate())</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  .<a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html#arg-1">arg</a>(format.channelCount())</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  .<a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html#arg-1">arg</a>(format.sampleSize())</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  .<a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html#arg-1">arg</a>(format.codec())</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  .<a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html#arg-1">arg</a>(toQString(format.byteOrder()))</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  .<a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html#arg-1">arg</a>(toQString(format.sampleType()))</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  .<a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html#arg-1">arg</a>(format.bytesPerFrame());</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  }</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  </div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html">QString</a> &toQString(QAudioFormat::Endian s)</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  {</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html">QString</a> l(<span class="stringliteral">"little"</span>);</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html">QString</a> b(<span class="stringliteral">"big"</span>);</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">switch</span> (s)</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  {</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">case</span> QAudioFormat::BigEndian: <span class="keywordflow">return</span> b;</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">case</span> QAudioFormat::LittleEndian: <span class="keywordflow">return</span> l;</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">default</span>: <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  }</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html">QString</a> u(<span class="stringliteral">"??"</span>);</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordflow">return</span> u;</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  }</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  </div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html">QString</a> &toQString(QAudioFormat::SampleType e)</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  {</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html">QString</a> s(<span class="stringliteral">"signed int"</span>);</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html">QString</a> u(<span class="stringliteral">"unsigned int"</span>);</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html">QString</a> f(<span class="stringliteral">"float"</span>);</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">switch</span> (e)</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  {</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">case</span> QAudioFormat::SignedInt: <span class="keywordflow">return</span> s;</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordflow">case</span> QAudioFormat::UnSignedInt: <span class="keywordflow">return</span> u;</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordflow">case</span> QAudioFormat::Float: <span class="keywordflow">return</span> f;</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">case</span> QAudioFormat::Unknown:</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">default</span>: <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  }</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="codeRef" href="http://doc.qt.io/qt-5/qstring.html">QString</a> unknown(<span class="stringliteral">"unknown"</span>);</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">return</span> unknown;</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  }</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  </div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordtype">double</span> normalize0to100(<span class="keywordtype">double</span> in)</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  {</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordflow">if</span> (in < 0) { <span class="keywordflow">return</span> 0; }</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">return</span> (in >= 1.0) ? 1.0 : in;</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  }</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  </div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  qreal normalize0to100qr(<span class="keywordtype">double</span> in)</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  {</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>qreal<span class="keyword">></span>(normalize0to100(in));</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  }</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  </div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordtype">void</span> occupyAudioInputDevice()</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  {</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">if</span> (!<a class="code" href="class_black_config_1_1_c_build_config.html#a48c7efe4b02891b987f35582025cc230">CBuildConfig::isRunningOnWindows10</a>()) { <span class="keywordflow">return</span>; }</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keyword">static</span> <span class="keyword">const</span> QAudioInput input(QAudioDeviceInfo::defaultInputDevice());</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  }</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  </div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> } <span class="comment">// ns</span></div>
<div class="ttc" id="aaudiodeviceinfolist_8h_html"><div class="ttname"><a href="audiodeviceinfolist_8h.html">audiodeviceinfolist.h</a></div></div>
<div class="ttc" id="aaudioutilities_8h_html"><div class="ttname"><a href="audioutilities_8h.html">audioutilities.h</a></div></div>
<div class="ttc" id="abuildconfig_8h_html"><div class="ttname"><a href="buildconfig_8h.html">buildconfig.h</a></div></div>
<div class="ttc" id="aclass_black_config_1_1_c_build_config_html_a48c7efe4b02891b987f35582025cc230"><div class="ttname"><a href="class_black_config_1_1_c_build_config.html#a48c7efe4b02891b987f35582025cc230">BlackConfig::CBuildConfig::isRunningOnWindows10</a></div><div class="ttdeci">static bool isRunningOnWindows10()</div><div class="ttdoc">Windows 10.</div></div>
<div class="ttc" id="aclass_black_misc_1_1_audio_1_1_c_audio_device_info_html"><div class="ttname"><a href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html">BlackMisc::Audio::CAudioDeviceInfo</a></div><div class="ttdoc">Value object encapsulating information of a audio device.</div><div class="ttdef"><b>Definition:</b> <a href="audiodeviceinfo_8h_source.html#l00027">audiodeviceinfo.h:28</a></div></div>
<div class="ttc" id="aclass_black_misc_1_1_audio_1_1_c_audio_device_info_html_a23949dbb1611e26b062af044c05e5d42"><div class="ttname"><a href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html#a23949dbb1611e26b062af044c05e5d42">BlackMisc::Audio::CAudioDeviceInfo::isInputDevice</a></div><div class="ttdeci">bool isInputDevice() const</div><div class="ttdoc">Input device.</div><div class="ttdef"><b>Definition:</b> <a href="audiodeviceinfo_8h_source.html#l00069">audiodeviceinfo.h:69</a></div></div>
<div class="ttc" id="aclass_black_misc_1_1_audio_1_1_c_audio_device_info_html_a5110ae5bdf1adb8fd431094bb31318d2"><div class="ttname"><a href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html#a5110ae5bdf1adb8fd431094bb31318d2">BlackMisc::Audio::CAudioDeviceInfo::isDefault</a></div><div class="ttdeci">bool isDefault() const</div><div class="ttdoc">Is this a default device?</div><div class="ttdef"><b>Definition:</b> <a href="audiodeviceinfo_8cpp_source.html#l00025">audiodeviceinfo.cpp:25</a></div></div>
<div class="ttc" id="aclass_black_misc_1_1_audio_1_1_c_audio_device_info_html_a5ce5014f78322b89fb74efce4c541955"><div class="ttname"><a href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html#a5ce5014f78322b89fb74efce4c541955">BlackMisc::Audio::CAudioDeviceInfo::getName</a></div><div class="ttdeci">const QString & getName() const</div><div class="ttdoc">Get the device name.</div><div class="ttdef"><b>Definition:</b> <a href="audiodeviceinfo_8h_source.html#l00054">audiodeviceinfo.h:54</a></div></div>
<div class="ttc" id="aclass_black_misc_1_1_audio_1_1_c_audio_device_info_html_af4ce0ba5c51c632dde2d0785215db4ec"><div class="ttname"><a href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html#af4ce0ba5c51c632dde2d0785215db4ec">BlackMisc::Audio::CAudioDeviceInfo::getType</a></div><div class="ttdeci">DeviceType getType() const</div><div class="ttdoc">Type.</div><div class="ttdef"><b>Definition:</b> <a href="audiodeviceinfo_8h_source.html#l00063">audiodeviceinfo.h:63</a></div></div>
<div class="ttc" id="aclass_black_misc_1_1_audio_1_1_c_audio_device_info_html_af62afa18f20f98a48be41e06d19aa13b"><div class="ttname"><a href="class_black_misc_1_1_audio_1_1_c_audio_device_info.html#af62afa18f20f98a48be41e06d19aa13b">BlackMisc::Audio::CAudioDeviceInfo::isValid</a></div><div class="ttdeci">bool isValid() const</div><div class="ttdoc">Valid audio device object?</div><div class="ttdef"><b>Definition:</b> <a href="audiodeviceinfo_8h_source.html#l00075">audiodeviceinfo.h:75</a></div></div>
<div class="ttc" id="aclass_black_misc_1_1_audio_1_1_c_audio_device_info_list_html"><div class="ttname"><a href="class_black_misc_1_1_audio_1_1_c_audio_device_info_list.html">BlackMisc::Audio::CAudioDeviceInfoList</a></div><div class="ttdoc">Value object encapsulating a list of audio devices.</div><div class="ttdef"><b>Definition:</b> <a href="audiodeviceinfolist_8h_source.html#l00024">audiodeviceinfolist.h:27</a></div></div>
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