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<div class="title">al_Lbap.hpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef INCLUDE_AL_PANNING_LBAP</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#define INCLUDE_AL_PANNING_LBAP</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="comment">/* Allocore --</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> Multimedia / virtual environment application class library</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"> Copyright (C) 2009. AlloSphere Research Group, Media Arts & Technology,</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> UCSB. Copyright (C) 2012. The Regents of the University of California. All</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> rights reserved.</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"> Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> modification, are permitted provided that the following conditions are</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> met:</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"></span> </div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> Redistributions of source code must retain the above copyright</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"></span> </div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> Redistributions in binary form must reproduce the above</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> copyright notice, this list of conditions and the following disclaimer in the</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> documentation and/or other materials provided with the</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> distribution.</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"></span> </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> Neither the name of the University of California nor the names</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> of its contributors may be used to endorse or promote products derived from</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> this software without specific prior written permission.</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"></span> </div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</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> <span class="comment"></span> </div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> File description:</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> Layer Based Amplitude Panning</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"></span> </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> File author(s):</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> Andres Cabrera 2018 mantaraya36@gmail.com</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  </div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#include <map></span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#include <memory></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> <span class="preprocessor">#include "al/math/al_Vec.hpp"</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#include "al/sound/al_Speaker.hpp"</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#include "al/sound/al_Vbap.hpp"</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#include "al/spatial/al_DistAtten.hpp"</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#include "al/spatial/al_Pose.hpp"</span></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> <span class="preprocessor">#define RAD_2_DEG_SCALE 57.29577951308232 </span><span class="comment">// 360/(2*pi)</span></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="keyword">namespace </span><a class="code" href="namespaceal.html">al</a> {</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  </div>
<div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="classal_1_1_ldap_ring.html"> 60</a></span> <span class="keyword">class </span><a class="code" href="classal_1_1_ldap_ring.html">LdapRing</a> {</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="classal_1_1_ldap_ring.html">LdapRing</a>(<a class="code" href="namespaceal.html#a2b52b41b41b11fd1aeb45bf63e066929">Speakers</a> &sl) {</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  vbap = std::make_shared<Vbap>(sl);</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  elevation = 0;</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> speaker : sl) {</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  elevation += speaker.elevation;</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>  elevation /= sl.size(); <span class="comment">// store average elevation</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  vbap->compile();</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>  </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  std::shared_ptr<Vbap> vbap;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordtype">float</span> elevation;</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>  </div>
<div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="classal_1_1_lbap.html"> 79</a></span> <span class="keyword">class </span><a class="code" href="classal_1_1_lbap.html">Lbap</a> : <span class="keyword">public</span> <a class="code" href="classal_1_1_spatializer.html">Spatializer</a> {</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">typedef</span> <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  KEEP_SAME_ELEVATION =</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  0x1, <span class="comment">// Don't discard triplets that have the same elevation</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  } VbapOptions;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  </div>
<div class="line"><a name="l00087"></a><span class="lineno"><a class="line" href="classal_1_1_lbap.html#a1fd01c10f51264dada3355141c0b0dff"> 87</a></span>  <a class="code" href="classal_1_1_lbap.html#a1fd01c10f51264dada3355141c0b0dff">Lbap</a>(<span class="keyword">const</span> <a class="code" href="namespaceal.html#a2b52b41b41b11fd1aeb45bf63e066929">Speakers</a> &sl) : <a class="code" href="classal_1_1_spatializer.html">Spatializer</a>(sl) {}</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>  <span class="keyword">virtual</span> ~<a class="code" href="classal_1_1_lbap.html">Lbap</a>()<span class="keyword"> override </span>{</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">if</span> (buffer) {</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  free(buffer);</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>  }</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  </div>
<div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="classal_1_1_lbap.html#a0123bfe0b4b53c0ec522527c88704037"> 95</a></span>  <span class="keywordtype">void</span> <a class="code" href="classal_1_1_lbap.html#a0123bfe0b4b53c0ec522527c88704037">compile</a>() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  </div>
<div class="line"><a name="l00097"></a><span class="lineno"><a class="line" href="classal_1_1_lbap.html#a7c762fe956b0ce88d88535de8ec0be35"> 97</a></span>  <span class="keywordtype">void</span> <a class="code" href="classal_1_1_lbap.html#a7c762fe956b0ce88d88535de8ec0be35">prepare</a>(<a class="code" href="classal_1_1_audio_i_o_data.html">AudioIOData</a> &io) <span class="keyword">override</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"><a class="line" href="classal_1_1_lbap.html#a65114b445421282fb75affdbd98f2ee7"> 99</a></span>  <span class="keywordtype">void</span> <a class="code" href="classal_1_1_lbap.html#a65114b445421282fb75affdbd98f2ee7">renderSample</a>(<a class="code" href="classal_1_1_audio_i_o_data.html">AudioIOData</a> &io, <span class="keyword">const</span> <a class="code" href="classal_1_1_pose.html">Pose</a> &reldir, <span class="keyword">const</span> <span class="keywordtype">float</span> &sample,</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> &frameIndex) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  </div>
<div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="classal_1_1_lbap.html#af829afde0e1d7a15cb03140ca24bd732"> 102</a></span>  <span class="keywordtype">void</span> <a class="code" href="classal_1_1_lbap.html#af829afde0e1d7a15cb03140ca24bd732">renderBuffer</a>(<a class="code" href="classal_1_1_audio_i_o_data.html">AudioIOData</a> &io, <span class="keyword">const</span> <a class="code" href="classal_1_1_pose.html">Pose</a> &listeningPose,</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> *samples,</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> &<a class="code" href="classal_1_1_spatializer.html#a81602a75dc91ba82ba0a90b0198163c9">numFrames</a>) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  </div>
<div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="classal_1_1_lbap.html#aa61f944b151b28e2f6cf617d58361fe6"> 106</a></span>  <span class="keywordtype">void</span> <a class="code" href="classal_1_1_lbap.html#aa61f944b151b28e2f6cf617d58361fe6">print</a>(std::ostream &stream = std::cout) <span class="keyword">override</span>;</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="keyword">private</span>:</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  std::vector<LdapRing> mRings;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordtype">float</span> *buffer{<span class="keyword">nullptr</span>}; <span class="comment">// Two consecutive buffers (non-interleaved)</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordtype">int</span> bufferSize{0};</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> };</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  </div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> } <span class="comment">// namespace al</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="preprocessor">#endif</span></div>
<div class="ttc" id="aclassal_1_1_audio_i_o_data_html"><div class="ttname"><a href="classal_1_1_audio_i_o_data.html">al::AudioIOData</a></div><div class="ttdef"><b>Definition:</b> <a href="al___audio_i_o_data_8hpp_source.html#l00174">al_AudioIOData.hpp:174</a></div></div>
<div class="ttc" id="aclassal_1_1_lbap_html"><div class="ttname"><a href="classal_1_1_lbap.html">al::Lbap</a></div><div class="ttdef"><b>Definition:</b> <a href="al___lbap_8hpp_source.html#l00079">al_Lbap.hpp:79</a></div></div>
<div class="ttc" id="aclassal_1_1_lbap_html_a0123bfe0b4b53c0ec522527c88704037"><div class="ttname"><a href="classal_1_1_lbap.html#a0123bfe0b4b53c0ec522527c88704037">al::Lbap::compile</a></div><div class="ttdeci">void compile() override</div></div>
<div class="ttc" id="aclassal_1_1_lbap_html_a1fd01c10f51264dada3355141c0b0dff"><div class="ttname"><a href="classal_1_1_lbap.html#a1fd01c10f51264dada3355141c0b0dff">al::Lbap::Lbap</a></div><div class="ttdeci">Lbap(const Speakers &sl)</div><div class="ttdef"><b>Definition:</b> <a href="al___lbap_8hpp_source.html#l00087">al_Lbap.hpp:87</a></div></div>
<div class="ttc" id="aclassal_1_1_lbap_html_a65114b445421282fb75affdbd98f2ee7"><div class="ttname"><a href="classal_1_1_lbap.html#a65114b445421282fb75affdbd98f2ee7">al::Lbap::renderSample</a></div><div class="ttdeci">void renderSample(AudioIOData &io, const Pose &reldir, const float &sample, const unsigned int &frameIndex) override</div><div class="ttdoc">Render audio sample in position.</div></div>
<div class="ttc" id="aclassal_1_1_lbap_html_a7c762fe956b0ce88d88535de8ec0be35"><div class="ttname"><a href="classal_1_1_lbap.html#a7c762fe956b0ce88d88535de8ec0be35">al::Lbap::prepare</a></div><div class="ttdeci">void prepare(AudioIOData &io) override</div></div>
<div class="ttc" id="aclassal_1_1_lbap_html_aa61f944b151b28e2f6cf617d58361fe6"><div class="ttname"><a href="classal_1_1_lbap.html#aa61f944b151b28e2f6cf617d58361fe6">al::Lbap::print</a></div><div class="ttdeci">void print(std::ostream &stream=std::cout) override</div><div class="ttdoc">Print out information about spatializer.</div></div>
<div class="ttc" id="aclassal_1_1_lbap_html_af829afde0e1d7a15cb03140ca24bd732"><div class="ttname"><a href="classal_1_1_lbap.html#af829afde0e1d7a15cb03140ca24bd732">al::Lbap::renderBuffer</a></div><div class="ttdeci">void renderBuffer(AudioIOData &io, const Pose &listeningPose, const float *samples, const unsigned int &numFrames) override</div><div class="ttdoc">Render audio buffer in position.</div></div>
<div class="ttc" id="aclassal_1_1_ldap_ring_html"><div class="ttname"><a href="classal_1_1_ldap_ring.html">al::LdapRing</a></div><div class="ttdef"><b>Definition:</b> <a href="al___lbap_8hpp_source.html#l00060">al_Lbap.hpp:60</a></div></div>
<div class="ttc" id="aclassal_1_1_pose_html"><div class="ttname"><a href="classal_1_1_pose.html">al::Pose</a></div><div class="ttdoc">A local coordinate frame.</div><div class="ttdef"><b>Definition:</b> <a href="al___pose_8hpp_source.html#l00063">al_Pose.hpp:63</a></div></div>
<div class="ttc" id="aclassal_1_1_spatializer_html"><div class="ttname"><a href="classal_1_1_spatializer.html">al::Spatializer</a></div><div class="ttdef"><b>Definition:</b> <a href="al___spatializer_8hpp_source.html#l00056">al_Spatializer.hpp:56</a></div></div>
<div class="ttc" id="aclassal_1_1_spatializer_html_a81602a75dc91ba82ba0a90b0198163c9"><div class="ttname"><a href="classal_1_1_spatializer.html#a81602a75dc91ba82ba0a90b0198163c9">al::Spatializer::numFrames</a></div><div class="ttdeci">virtual void numFrames(unsigned int v)</div><div class="ttdoc">Set number of frames.</div><div class="ttdef"><b>Definition:</b> <a href="al___spatializer_8hpp_source.html#l00093">al_Spatializer.hpp:93</a></div></div>
<div class="ttc" id="anamespaceal_html"><div class="ttname"><a href="namespaceal.html">al</a></div><div class="ttdef"><b>Definition:</b> <a href="al___app_8hpp_source.html#l00023">al_App.hpp:23</a></div></div>
<div class="ttc" id="anamespaceal_html_a2b52b41b41b11fd1aeb45bf63e066929"><div class="ttname"><a href="namespaceal.html#a2b52b41b41b11fd1aeb45bf63e066929">al::Speakers</a></div><div class="ttdeci">std::vector< Speaker > Speakers</div><div class="ttdoc">A set of speakers.</div><div class="ttdef"><b>Definition:</b> <a href="al___speaker_8hpp_source.html#l00101">al_Speaker.hpp:101</a></div></div>
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