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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> ==============================================================================</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> </span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> This file is part of the iPlug 2 library. Copyright (C) the iPlug 2 developers. </span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> </span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> See LICENSE.txt for more info.</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> </span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> ==============================================================================</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment">*/</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#import "IPlugAUPlayer.h"</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include "<a class="code" href="_i_plug_constants_8h.html">IPlugConstants.h</a>"</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include "config.h"</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> </div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#if !__has_feature(objc_arc)</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#error This file must be compiled with Arc. Use -fobjc-arc flag</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="keywordtype">bool</span> isInstrument()</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span>{</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#if PLUG_TYPE == 1</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keywordflow">return</span> YES;</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> <span class="keywordflow">return</span> NO;</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span>}</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="keyword">@implementation </span>IPlugAUPlayer</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span>{</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> AVAudioEngine* engine;</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> AVAudioUnit* avAudioUnit;</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> UInt32 componentType;</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span>}</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span>- (instancetype) initWithComponentType: (UInt32) unitComponentType</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span>{</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> self = [<span class="keyword">super</span> init];</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keywordflow">if</span> (self)</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> {</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> engine = [[AVAudioEngine alloc] init];</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> componentType = unitComponentType;</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> }</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> </div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keywordflow">return</span> self;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span>}</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span>- (void) loadAudioUnitWithComponentDescription:(AudioComponentDescription)desc</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> completion:(<span class="keywordtype">void</span> (^) (<span class="keywordtype">void</span>))completionBlock</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span>{</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> [AVAudioUnit instantiateWithComponentDescription:desc options:0</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> completionHandler:^(AVAudioUnit* __nullable audioUnit, NSError* __nullable error) {</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> [<span class="keyword">self</span> onAudioUnitInstantiated:audioUnit error:error completion:completionBlock];</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> }];</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span>}</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span>- (void) onAudioUnitInstantiated:(AVAudioUnit* __nullable) audioUnit error:(NSError* __nullable) error completion:(<span class="keywordtype">void</span> (^) (<span class="keywordtype">void</span>))completionBlock</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span>{</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keywordflow">if</span> (audioUnit == nil)</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> avAudioUnit = audioUnit;</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> </div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> [engine attachNode:avAudioUnit];</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> self.currentAudioUnit = avAudioUnit.AUAudioUnit;</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> </div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> [<span class="keyword">self</span> setupSession];</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span><span class="preprocessor">#ifdef _DEBUG</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> [<span class="keyword">self</span> printEngineInfo];</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> [<span class="keyword">self</span> printSessionInfo];</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> [<span class="keyword">self</span> makeEngineConnections];</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> [<span class="keyword">self</span> addNotifications];</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> </div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> AVAudioSession* session = [AVAudioSession sharedInstance];</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> </div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keywordflow">if</span> (![session setActive:TRUE error: &error])</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> {</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> NSLog(<span class="stringliteral">@"Error setting session active: %@"</span>, [error localizedDescription]);</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> }</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> </div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="keywordflow">if</span> (![engine startAndReturnError: &error])</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> {</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> NSLog(<span class="stringliteral">@"engine failed to start: %@"</span>, error);</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> }</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> </div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> completionBlock();</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span>}</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> </div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span>- (void) dealloc</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span>{</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> [[NSNotificationCenter defaultCenter] removeObserver: self];</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span>}</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span>- (void) restartAudioEngine</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span>{</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> [engine stop];</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> </div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> NSError *error = nil;</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> </div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keywordflow">if</span> (![engine startAndReturnError:&error])</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> {</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> NSLog(<span class="stringliteral">@"Error re-starting audio engine: %@"</span>, error);</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> }</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> {</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> [<span class="keyword">self</span> printSessionInfo];</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> }</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span>}</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> </div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span>- (void) setupSession</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span>{</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> AVAudioSession* session = [AVAudioSession sharedInstance];</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> NSError* error = nil;</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> </div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> AVAudioSessionCategoryOptions options = AVAudioSessionCategoryOptionDefaultToSpeaker | AVAudioSessionCategoryOptionAllowBluetooth;</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> [session setCategory: isInstrument() ? AVAudioSessionCategoryPlayback</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> : AVAudioSessionCategoryPlayAndRecord</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> withOptions:options error: &error];</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> </div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="keywordflow">if</span> (error)</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> {</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> NSLog(<span class="stringliteral">@"Error setting category: %@"</span>, error);</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> }</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> </div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> [session setPreferredSampleRate:iplug::DEFAULT_SAMPLE_RATE error: &error];</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> </div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">if</span> (error)</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> {</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> NSLog(<span class="stringliteral">@"Error setting samplerate: %@"</span>, error);</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> }</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> [session setPreferredIOBufferDuration:128.0/iplug::DEFAULT_SAMPLE_RATE error: &error];</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> </div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keywordflow">if</span> (error)</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> {</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> NSLog(<span class="stringliteral">@"Error setting io buffer duration: %@"</span>, error);</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> }</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span>}</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> </div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span>- (void) makeEngineConnections</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span>{</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keywordflow">if</span> (!isInstrument())</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> {</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> AVAudioNode* inputNode = [engine inputNode];</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> AVAudioFormat* inputNodeFormat = [inputNode inputFormatForBus:0];</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> </div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> @autoreleasepool {</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">@try</span> {</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> [engine connect:inputNode to:avAudioUnit format: inputNodeFormat];</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> }</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordflow">@catch</span> (NSException *exception) {</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> NSLog(<span class="stringliteral">@"NSException when trying to connect input node: %@, Reason: %@"</span>, exception.name, exception.reason);</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> }</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> }</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> }</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> </div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="keyword">auto</span> numOutputBuses = [avAudioUnit numberOfOutputs];</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> AVAudioMixerNode* mainMixer = [engine mainMixerNode];</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> AVAudioFormat* pluginOutputFormat = [avAudioUnit outputFormatForBus:0];</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> AVAudioNode* outputNode = [engine outputNode];</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="keywordflow">if</span> (numOutputBuses > 1)</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> {</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="comment">// Assume all output buses are the same format</span></div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> busIdx=0; busIdx<numOutputBuses; busIdx++)</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> {</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> [engine connect:avAudioUnit to:mainMixer fromBus: busIdx toBus:[mainMixer nextAvailableInputBus] format: pluginOutputFormat];</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> }</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> }</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> {</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> [engine connect:avAudioUnit to:outputNode format: pluginOutputFormat];</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> }</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span>}</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> </div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span>- (void) printEngineInfo</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span>{</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <span class="keywordflow">if</span> (!isInstrument())</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> {</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> AVAudioFormat* inputNodeFormat = [[engine inputNode] inputFormatForBus:0];</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> AVAudioFormat* pluginInputFormat = [avAudioUnit inputFormatForBus:0];</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> NSLog(<span class="stringliteral">@"Input Node SR: %i"</span>, <span class="keywordtype">int</span>(inputNodeFormat.sampleRate));</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> NSLog(<span class="stringliteral">@"Input Node Chans: %i"</span>, inputNodeFormat.channelCount);</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> NSLog(<span class="stringliteral">@"Plugin Input SR: %i"</span>, <span class="keywordtype">int</span>(pluginInputFormat.sampleRate));</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> NSLog(<span class="stringliteral">@"Plugin Input Chans: %i"</span>, pluginInputFormat.channelCount);</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> }</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> </div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> AVAudioFormat* pluginOutputFormat = [avAudioUnit outputFormatForBus:0];</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> AVAudioFormat* outputNodeFormat = [[engine outputNode] outputFormatForBus:0];</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> </div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> NSLog(<span class="stringliteral">@"Plugin Output SR: %i"</span>, <span class="keywordtype">int</span>(pluginOutputFormat.sampleRate));</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> NSLog(<span class="stringliteral">@"Plugin Output Chans: %i"</span>, pluginOutputFormat.channelCount);</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> NSLog(<span class="stringliteral">@"Output Node SR: %i"</span>, <span class="keywordtype">int</span>(outputNodeFormat.sampleRate));</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> NSLog(<span class="stringliteral">@"Output Node Chans: %i"</span>, outputNodeFormat.channelCount);</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span>}</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> </div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span>- (void) printSessionInfo</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span>{</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> AVAudioSession* session = [AVAudioSession sharedInstance];</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> NSLog(<span class="stringliteral">@"Session SR: %i"</span>, <span class="keywordtype">int</span>(session.sampleRate));</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> NSLog(<span class="stringliteral">@"Session IO Buffer: %i"</span>, <span class="keywordtype">int</span>((session.IOBufferDuration * session.sampleRate)+0.5));</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="keywordflow">if</span> (!isInstrument()) NSLog(<span class="stringliteral">@"Session Input Chans: %i"</span>, <span class="keywordtype">int</span>(session.inputNumberOfChannels));</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> NSLog(<span class="stringliteral">@"Session Output Chans: %i"</span>, <span class="keywordtype">int</span>(session.outputNumberOfChannels));</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> <span class="keywordflow">if</span> (!isInstrument()) NSLog(<span class="stringliteral">@"Session Input Latency: %f ms"</span>, session.inputLatency * 1000.0f);</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> NSLog(<span class="stringliteral">@"Session Output Latency: %f ms"</span>, session.outputLatency * 1000.0f);</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> AVAudioSessionRouteDescription *currentRoute = [session currentRoute];</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <span class="keywordflow">for</span> (AVAudioSessionPortDescription* input in currentRoute.inputs)</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> {</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> NSLog(<span class="stringliteral">@"Input Port Name: %@"</span>, input.portName);</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> }</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> </div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="keywordflow">for</span> (AVAudioSessionPortDescription* output in currentRoute.outputs)</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> {</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> NSLog(<span class="stringliteral">@"Output Port Name: %@"</span>, output.portName);</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> }</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span>}</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> </div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span>- (void) addNotifications</div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span>{</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> NSNotificationCenter* notifCtr = [NSNotificationCenter defaultCenter];</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> </div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> [notifCtr addObserver: self selector: @selector (onEngineConfigurationChange:) name:AVAudioEngineConfigurationChangeNotification object: engine];</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span>}</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> </div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span><span class="preprocessor">#pragma mark Notifications</span></div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span>- (void) onEngineConfigurationChange: (NSNotification*) notification</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span>{</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> [<span class="keyword">self</span> restartAudioEngine];</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span>}</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> </div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span><span class="keyword">@end</span></div>
<div class="ttc" id="a_i_plug_constants_8h_html"><div class="ttname"><a href="_i_plug_constants_8h.html">IPlugConstants.h</a></div><div class="ttdoc">IPlug Constant definitions, Types, magic numbers.</div></div>
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