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<div class="title">audio_osx_source.h</div> </div>
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<a href="audio__osx__source_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* -*- c++ -*- */</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Copyright 2006-2011 Free Software Foundation, Inc.</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"> * This file is part of GNU Radio.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * GNU Radio is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * the Free Software Foundation; either version 3, or (at your option)</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * any later version.</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * GNU Radio is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * GNU General Public License for more details.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * You should have received a copy of the GNU General Public License</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * along with GNU Radio; see the file COPYING. If not, write to</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * the Free Software Foundation, Inc., 51 Franklin Street,</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * Boston, MA 02110-1301, USA.</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></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="preprocessor">#ifndef INCLUDED_AUDIO_OSX_SOURCE_H</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define INCLUDED_AUDIO_OSX_SOURCE_H</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 <<a class="code" href="gr__audio__source_8h.html">gr_audio_source.h</a>></span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <string></span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <AudioToolbox/AudioToolbox.h></span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <AudioUnit/AudioUnit.h></span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="code" href="circular__buffer_8h.html">circular_buffer.h</a>></span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">/*!</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> * \brief audio source using OSX</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * \ingroup audio_blk</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> * Input signature is one or two streams of floats.</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * Samples must be in the range [-1,1].</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
<div class="line"><a name="l00040"></a><span class="lineno"><a class="code" href="classaudio__osx__source.html"> 40</a></span> <span class="keyword">class </span><a class="code" href="classaudio__osx__source.html" title="audio source using OSXInput signature is one or two streams of floats. Samples must be in the range [...">audio_osx_source</a> : <span class="keyword">public</span> <a class="code" href="classaudio__source.html" title="Creates a source from an audio device.">audio_source</a> {</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>  Float64 d_deviceSampleRate, d_outputSampleRate;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordtype">int</span> d_channel_config;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  UInt32 d_inputBufferSizeFrames, d_inputBufferSizeBytes;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  UInt32 d_outputBufferSizeFrames, d_outputBufferSizeBytes;</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  UInt32 d_deviceBufferSizeFrames, d_deviceBufferSizeBytes;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  UInt32 d_leadSizeFrames, d_leadSizeBytes;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  UInt32 d_trailSizeFrames, d_trailSizeBytes;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  UInt32 d_extraBufferSizeFrames, d_extraBufferSizeBytes;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  UInt32 d_queueSampleCount, d_max_sample_count;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  UInt32 d_n_AvailableInputFrames, d_n_ActualInputFrames;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  UInt32 d_n_user_channels, d_n_max_channels, d_n_deviceChannels;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordtype">bool</span> d_do_block, d_passThrough, d_waiting_for_data;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="namespacegruel.html#a16a913898c1d7f7a8ee459eb7ace413d">gruel::mutex</a>* d_internal;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <a class="code" href="namespacegruel.html#a7f31867c7b47853d55962183d0a4e999">gruel::condition_variable</a>* d_cond_data;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="code" href="classcircular__buffer.html">circular_buffer<float></a>** d_buffers;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment">// AudioUnits and Such</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  AudioUnit d_InputAU;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  AudioBufferList* d_InputBuffer;</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  AudioBufferList* d_OutputBuffer;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  AudioConverterRef d_AudioConverter;</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> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="classaudio__osx__source.html#ad1999c15b0c96b1746ff25bdc2da97a5">audio_osx_source</a> (<span class="keywordtype">int</span> sample_rate = 44100,</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">const</span> std::string device_name = <span class="stringliteral">""</span>,</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordtype">bool</span> do_block = <span class="keyword">true</span>,</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">int</span> channel_config = -1,</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">int</span> max_sample_count = -1);</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="classaudio__osx__source.html#aff4c56407d1602f1986338211e975222">~audio_osx_source</a> ();</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>  <span class="keywordtype">bool</span> <a class="code" href="classaudio__osx__source.html#a783cf6498ede9ffb14396b72fffbb731" title="Called to enable drivers, etc for i/o devices.">start</a> ();</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">bool</span> <a class="code" href="classaudio__osx__source.html#a902595b2e1886706ffbca4465ea71e04" title="Called to disable drivers, etc for i/o devices.">stop</a> ();</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">bool</span> <a class="code" href="classaudio__osx__source.html#a5bd8338506d281198a754d7e0342c701">IsRunning</a> ();</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordtype">bool</span> <a class="code" href="classaudio__osx__source.html#a3a89cbd64f5112de6231ef7d25bcdfb2" title="Confirm that ninputs and noutputs is an acceptable combination.">check_topology</a> (<span class="keywordtype">int</span> ninputs, <span class="keywordtype">int</span> noutputs);</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordtype">int</span> <a class="code" href="classaudio__osx__source.html#a54dfec211e4fca4f58891ed65a7c25bc" title="just like gr_block::general_work, only this arranges to call consume_each for you">work</a> (<span class="keywordtype">int</span> noutput_items,</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <a class="code" href="gr__types_8h.html#a9852a3d906d823cb70eb9c29e7f2a43d">gr_vector_const_void_star</a> &input_items,</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <a class="code" href="gr__types_8h.html#acd3f499576e769966ea44554b359d949">gr_vector_void_star</a> &output_items);</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="keyword">private</span>:</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">void</span> SetDefaultInputDeviceAsCurrent ();</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordtype">void</span> AllocAudioBufferList (AudioBufferList** t_ABL,</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  UInt32 n_channels,</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  UInt32 inputBufferSizeBytes);</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>  <span class="keywordtype">void</span> FreeAudioBufferList (AudioBufferList** t_ABL);</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="keyword">static</span> OSStatus ConverterCallback (AudioConverterRef inAudioConverter,</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  UInt32* ioNumberDataPackets,</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  AudioBufferList* ioData,</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  AudioStreamPacketDescription** outASPD,</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordtype">void</span>* inUserData);</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keyword">static</span> OSStatus AUInputCallback (<span class="keywordtype">void</span> *inRefCon,</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  AudioUnitRenderActionFlags *ioActionFlags,</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keyword">const</span> AudioTimeStamp *inTimeStamp,</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  UInt32 inBusNumber,</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  UInt32 inNumberFrames,</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  AudioBufferList *ioData);</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="preprocessor">#if _OSX_DO_LISTENERS_</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="preprocessor"></span> <span class="keyword">static</span> OSStatus UnitListener (<span class="keywordtype">void</span> *inRefCon,</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  AudioUnit ci,</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  AudioUnitPropertyID inID,</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  AudioUnitScope inScope,</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  AudioUnitElement inElement);</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">static</span> OSStatus HardwareListener (AudioHardwarePropertyID inPropertyID,</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">void</span> *inClientData);</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="preprocessor"></span>};</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="preprocessor">#endif </span><span class="comment">/* INCLUDED_AUDIO_OSX_SOURCE_H */</span><span class="preprocessor"></span></div>
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