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<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_44f75d7a35fd4e33bdaab9f4bfdc7083.html">AudioLibs</a></li> </ul>
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<div class="title">R2ROutput.h</div> </div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#pragma once</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>  </div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="preprocessor">#include "AudioConfig.h"</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include "AudioTimer/AudioTimer.h"</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include "AudioTools/AudioLogger.h"</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#include "AudioTools/AudioOutput.h"</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "AudioTools/Buffers.h"</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include "AudioBasic/Collections/Vector.h"</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="keyword">namespace </span><a class="code" href="namespaceaudio__tools.html">audio_tools</a> {</div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>  </div>
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<div class="line"><a name="l00018"></a><span class="lineno"><a class="line" href="classaudio__tools_1_1_r2_r_driver_base.html"> 18</a></span> <span class="keyword">class </span><a class="code" href="classaudio__tools_1_1_r2_r_driver_base.html">R2RDriverBase</a> {</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> setupPins(<a class="code" href="classaudio__tools_1_1_vector.html">Vector<int></a> &channel1_pins,</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <a class="code" href="classaudio__tools_1_1_vector.html">Vector<int></a> &channel2_pins) = 0;</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> writePins(<span class="keywordtype">int</span> channels, <span class="keywordtype">int</span> channel, <span class="keywordtype">unsigned</span> uvalue) = 0;</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> };</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  </div>
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<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="classaudio__tools_1_1_r2_r_driver.html"> 34</a></span> <span class="keyword">class </span><a class="code" href="classaudio__tools_1_1_r2_r_driver.html">R2RDriver</a> : <span class="keyword">public</span> <a class="code" href="classaudio__tools_1_1_r2_r_driver_base.html">R2RDriverBase</a> {</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordtype">void</span> setupPins(<a class="code" href="classaudio__tools_1_1_vector.html">Vector<int></a> &channel1_pins,</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <a class="code" href="classaudio__tools_1_1_vector.html">Vector<int></a> &channel2_pins)<span class="keyword"> override </span>{</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  TRACED();</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  p_channel1_pins = &channel1_pins;</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  p_channel2_pins = &channel2_pins;</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  </div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> pin : channel1_pins) {</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  LOGI(<span class="stringliteral">"Setup channel1 pin %d"</span>, pin);</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  pinMode(pin, OUTPUT);</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  }</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> pin : channel2_pins) {</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  LOGI(<span class="stringliteral">"Setup channel2 pin %d"</span>, pin);</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  pinMode(pin, OUTPUT);</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  }</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  };</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  </div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">void</span> writePins(<span class="keywordtype">int</span> channels, <span class="keywordtype">int</span> channel, <span class="keywordtype">unsigned</span> uvalue)<span class="keyword"> override </span>{</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">switch</span> (channel) {</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">case</span> 0:</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j < (*p_channel1_pins).size(); j++) {</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordtype">int</span> pin = (*p_channel1_pins)[j];</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">if</span> (pin >= 0) digitalWrite(pin, (uvalue >> j) & 1);</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  }</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">case</span> 1:</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j < (*p_channel2_pins).size(); j++) {</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">int</span> pin = (*p_channel2_pins)[j];</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">if</span> (pin >= 0) digitalWrite(pin, (uvalue >> j) & 1);</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  }</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  }</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  </div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">protected</span>:</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <a class="code" href="classaudio__tools_1_1_vector.html">Vector<int></a> *p_channel1_pins = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="classaudio__tools_1_1_vector.html">Vector<int></a> *p_channel2_pins = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> } r2r_driver;</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  </div>
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<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="classaudio__tools_1_1_r2_r_config.html"> 80</a></span> <span class="keyword">class </span><a class="code" href="classaudio__tools_1_1_r2_r_config.html">R2RConfig</a> : <span class="keyword">public</span> <a class="code" href="structaudio__tools_1_1_audio_info.html">AudioInfo</a> {</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <a class="code" href="classaudio__tools_1_1_vector.html">Vector<int></a> channel1_pins;</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <a class="code" href="classaudio__tools_1_1_vector.html">Vector<int></a> channel2_pins;</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  uint16_t buffer_size = DEFAULT_BUFFER_SIZE;</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  uint16_t buffer_count = 2; <span class="comment">// double buffer</span></div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="code" href="classaudio__tools_1_1_r2_r_driver_base.html">R2RDriverBase</a> *driver = &r2r_driver; <span class="comment">// by default use Arduino driver</span></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordtype">bool</span> is_blocking = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordtype">int</span> blocking_retry_delay_ms = 5;</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordtype">int</span> timer_id = 0;</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> };</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  </div>
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<div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="classaudio__tools_1_1_r2_r_output.html"> 105</a></span> <span class="keyword">class </span><a class="code" href="classaudio__tools_1_1_r2_r_output.html">R2ROutput</a> : <span class="keyword">public</span> <a class="code" href="classaudio__tools_1_1_audio_output.html">AudioOutput</a> {</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <a class="code" href="classaudio__tools_1_1_r2_r_config.html">R2RConfig</a> defaultConfig() {</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="classaudio__tools_1_1_r2_r_config.html">R2RConfig</a> r;</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">return</span> r;</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  }</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  </div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">bool</span> begin(<a class="code" href="classaudio__tools_1_1_r2_r_config.html">R2RConfig</a> c) {</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  TRACED();</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  cfg = c;</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  rcfg = c;</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">return</span> begin();</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  }</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  </div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordtype">bool</span> begin()<span class="keyword"> override </span>{</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  TRACED();</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">if</span> (cfg.<a class="code" href="structaudio__tools_1_1_audio_info.html#a1ac7822956f57069d76da865d6b33c55">channels</a> == 0 || cfg.<a class="code" href="structaudio__tools_1_1_audio_info.html#a1ac7822956f57069d76da865d6b33c55">channels</a> > 2) {</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  LOGE(<span class="stringliteral">"channels is %d"</span>, cfg.<a class="code" href="structaudio__tools_1_1_audio_info.html#a1ac7822956f57069d76da865d6b33c55">channels</a>);</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  }</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">if</span> (rcfg.channel1_pins.size() == 0) {</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  LOGE(<span class="stringliteral">"channel1_pins not defined"</span>);</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  }</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">if</span> (cfg.<a class="code" href="structaudio__tools_1_1_audio_info.html#a1ac7822956f57069d76da865d6b33c55">channels</a> == 2 &&</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  rcfg.channel2_pins.size() != rcfg.channel1_pins.size()) {</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  LOGE(<span class="stringliteral">"channel2_pins not defined"</span>);</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  }</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">if</span> (rcfg.buffer_size * rcfg.buffer_count == 0) {</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  LOGE(<span class="stringliteral">"buffer_size or buffer_count is 0"</span>);</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  buffer.resize(rcfg.buffer_size, rcfg.buffer_count);</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  rcfg.driver->setupPins(rcfg.channel1_pins, rcfg.channel2_pins);</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  </div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// setup timer</span></div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  timer.setCallbackParameter(<span class="keyword">this</span>);</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  timer.setIsSave(<span class="keyword">true</span>);</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  timer.setTimer(rcfg.timer_id);</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">return</span> timer.begin(r2r_timer_callback, cfg.<a class="code" href="structaudio__tools_1_1_audio_info.html#a0e86c53dfa0ad5dc0d2ecd0304fabc95">sample_rate</a>, HZ);</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  }</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  </div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordtype">size_t</span> write(<span class="keyword">const</span> uint8_t *data, <span class="keywordtype">size_t</span> len)<span class="keyword"> override </span>{</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  LOGD(<span class="stringliteral">"write: %d"</span>, len);</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordtype">size_t</span> result = 0;</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="comment">// if buffer has not been allocated (buffer_size==0)</span></div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">if</span> (len > rcfg.buffer_size) {</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  LOGE(<span class="stringliteral">"buffer_size %d too small for write size: %d"</span>, rcfg.buffer_size,</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  len);</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">return</span> len;</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  }</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  </div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">if</span> (rcfg.is_blocking){</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="comment">// write of all bytes</span></div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordtype">int</span> open = len;</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">while</span>(open > 0){</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordtype">int</span> written = buffer.<a class="code" href="classaudio__tools_1_1_base_buffer.html#a2b6c561aac2af64aafac1946b6e46393">writeArray</a>(data + result, open);</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  open -= written;</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  result += written;</div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">if</span> (open > 0){</div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  delay(rcfg.blocking_retry_delay_ms);</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  }</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  }</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="comment">// write as much as possible</span></div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  result = buffer.<a class="code" href="classaudio__tools_1_1_base_buffer.html#a2b6c561aac2af64aafac1946b6e46393">writeArray</a>(data, len);</div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  }</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="comment">// activate output when buffer is half full</span></div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">if</span> (!is_active && buffer.bufferCountFilled() >= rcfg.buffer_count / 2) {</div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  LOGI(<span class="stringliteral">"is_active = true"</span>);</div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  is_active = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  </div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  }</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  </div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">protected</span>:</div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <a class="code" href="classaudio__tools_1_1_timer_alarm_repeating.html">TimerAlarmRepeating</a> timer;</div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">// Double buffer</span></div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <a class="code" href="classaudio__tools_1_1_n_buffer.html">NBuffer<uint8_t></a> buffer{DEFAULT_BUFFER_SIZE, 0};</div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <a class="code" href="classaudio__tools_1_1_r2_r_config.html">R2RConfig</a> rcfg;</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  </div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordtype">void</span> writeValue(<span class="keywordtype">int</span> channel) {</div>
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|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">switch</span> (cfg.<a class="code" href="structaudio__tools_1_1_audio_info.html#aa65c89fa8336bfdc4f8d916d9d415a9f">bits_per_sample</a>) {</div>
|
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">case</span> 8:</div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">return</span> writeValueT<int8_t>(channel);</div>
|
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">case</span> 16:</div>
|
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">return</span> writeValueT<int16_t>(channel);</div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">case</span> 24:</div>
|
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keywordflow">return</span> writeValueT<int24_t>(channel);</div>
|
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">case</span> 32:</div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">return</span> writeValueT<int32_t>(channel);</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  }</div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  }</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  </div>
|
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
|
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordtype">void</span> writeValueT(<span class="keywordtype">int</span> channel) {</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="comment">// don't do anything if we do not have enough data</span></div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordflow">if</span> (buffer.<a class="code" href="classaudio__tools_1_1_n_buffer.html#a4549a76725f2e4c013e4d57018366109">available</a>() < <span class="keyword">sizeof</span>(T)) <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  </div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="comment">// get next value from buffer</span></div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  T value = 0;</div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  buffer.<a class="code" href="classaudio__tools_1_1_base_buffer.html#a163c69bc2b88421988d60f4efddb1f3f">readArray</a>((uint8_t *)&value, <span class="keyword">sizeof</span>(T));</div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">// convert to unsigned</span></div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordtype">unsigned</span> uvalue = (int)value + NumberConverter::maxValueT<T>() + 1;</div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="comment">// scale value</span></div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  uvalue = uvalue >> ((<span class="keyword">sizeof</span>(T) * 8) - rcfg.channel1_pins.size());</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="comment">// Serial.println(uvalue);</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="comment">// output pins</span></div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  rcfg.driver->writePins(cfg.<a class="code" href="structaudio__tools_1_1_audio_info.html#a1ac7822956f57069d76da865d6b33c55">channels</a>, channel, uvalue);</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">static</span> <span class="keywordtype">void</span> r2r_timer_callback(<span class="keywordtype">void</span> *ptr) {</div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <a class="code" href="classaudio__tools_1_1_r2_r_output.html">R2ROutput</a> *<span class="keyword">self</span> = (<a class="code" href="classaudio__tools_1_1_r2_r_output.html">R2ROutput</a> *)ptr;</div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">if</span> (self->is_active) {</div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="comment">// output channel 1</span></div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keyword">self</span>->writeValue(0);</div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="comment">// output channel 2</span></div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">if</span> (self->cfg.channels == 2) <span class="keyword">self</span>->writeValue(1);</div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  };</div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  }</div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> };</div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  </div>
|
|
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> } <span class="comment">// namespace audio_tools</span></div>
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|
<div class="ttc" id="aclassaudio__tools_1_1_audio_output_html"><div class="ttname"><a href="classaudio__tools_1_1_audio_output.html">audio_tools::AudioOutput</a></div><div class="ttdoc">Abstract Audio Ouptut class.</div><div class="ttdef"><b>Definition:</b> AudioOutput.h:22</div></div>
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<div class="ttc" id="aclassaudio__tools_1_1_base_buffer_html_a163c69bc2b88421988d60f4efddb1f3f"><div class="ttname"><a href="classaudio__tools_1_1_base_buffer.html#a163c69bc2b88421988d60f4efddb1f3f">audio_tools::BaseBuffer::readArray</a></div><div class="ttdeci">virtual int readArray(T data[], int len)</div><div class="ttdoc">reads multiple values</div><div class="ttdef"><b>Definition:</b> Buffers.h:41</div></div>
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<div class="ttc" id="aclassaudio__tools_1_1_base_buffer_html_a2b6c561aac2af64aafac1946b6e46393"><div class="ttname"><a href="classaudio__tools_1_1_base_buffer.html#a2b6c561aac2af64aafac1946b6e46393">audio_tools::BaseBuffer::writeArray</a></div><div class="ttdeci">virtual int writeArray(const T data[], int len)</div><div class="ttdoc">Fills the buffer data.</div><div class="ttdef"><b>Definition:</b> Buffers.h:65</div></div>
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|
<div class="ttc" id="aclassaudio__tools_1_1_n_buffer_html"><div class="ttname"><a href="classaudio__tools_1_1_n_buffer.html">audio_tools::NBuffer< uint8_t ></a></div></div>
|
|
<div class="ttc" id="aclassaudio__tools_1_1_n_buffer_html_a4549a76725f2e4c013e4d57018366109"><div class="ttname"><a href="classaudio__tools_1_1_n_buffer.html#a4549a76725f2e4c013e4d57018366109">audio_tools::NBuffer::available</a></div><div class="ttdeci">int available()</div><div class="ttdoc">provides the number of entries that are available to read</div><div class="ttdef"><b>Definition:</b> Buffers.h:616</div></div>
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<div class="ttc" id="aclassaudio__tools_1_1_r2_r_config_html"><div class="ttname"><a href="classaudio__tools_1_1_r2_r_config.html">audio_tools::R2RConfig</a></div><div class="ttdoc">R2R configuration.</div><div class="ttdef"><b>Definition:</b> R2ROutput.h:80</div></div>
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<div class="ttc" id="aclassaudio__tools_1_1_r2_r_driver_base_html"><div class="ttname"><a href="classaudio__tools_1_1_r2_r_driver_base.html">audio_tools::R2RDriverBase</a></div><div class="ttdoc">R2R driver base class.</div><div class="ttdef"><b>Definition:</b> R2ROutput.h:18</div></div>
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<div class="ttc" id="aclassaudio__tools_1_1_r2_r_driver_html"><div class="ttname"><a href="classaudio__tools_1_1_r2_r_driver.html">audio_tools::R2RDriver</a></div><div class="ttdoc">R2R driver which uses the Arduino API to setup and write to the digital pins.</div><div class="ttdef"><b>Definition:</b> R2ROutput.h:34</div></div>
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<div class="ttc" id="aclassaudio__tools_1_1_r2_r_output_html"><div class="ttname"><a href="classaudio__tools_1_1_r2_r_output.html">audio_tools::R2ROutput</a></div><div class="ttdoc">Output to R-2R DAC. You need to define the used digital pins in the configuration....</div><div class="ttdef"><b>Definition:</b> R2ROutput.h:105</div></div>
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<div class="ttc" id="aclassaudio__tools_1_1_timer_alarm_repeating_html"><div class="ttname"><a href="classaudio__tools_1_1_timer_alarm_repeating.html">audio_tools::TimerAlarmRepeating</a></div><div class="ttdoc">Common Interface definition for TimerAlarmRepeating.</div><div class="ttdef"><b>Definition:</b> AudioTimer.h:25</div></div>
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<div class="ttc" id="aclassaudio__tools_1_1_vector_html"><div class="ttname"><a href="classaudio__tools_1_1_vector.html">audio_tools::Vector< int ></a></div></div>
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<div class="ttc" id="anamespaceaudio__tools_html"><div class="ttname"><a href="namespaceaudio__tools.html">audio_tools</a></div><div class="ttdoc">Generic Implementation of sound input and output for desktop environments using portaudio.</div><div class="ttdef"><b>Definition:</b> AnalogAudioArduino.h:12</div></div>
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|
<div class="ttc" id="astructaudio__tools_1_1_audio_info_html"><div class="ttname"><a href="structaudio__tools_1_1_audio_info.html">audio_tools::AudioInfo</a></div><div class="ttdoc">Basic Audio information which drives e.g. I2S.</div><div class="ttdef"><b>Definition:</b> AudioTypes.h:50</div></div>
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<div class="ttc" id="astructaudio__tools_1_1_audio_info_html_a0e86c53dfa0ad5dc0d2ecd0304fabc95"><div class="ttname"><a href="structaudio__tools_1_1_audio_info.html#a0e86c53dfa0ad5dc0d2ecd0304fabc95">audio_tools::AudioInfo::sample_rate</a></div><div class="ttdeci">sample_rate_t sample_rate</div><div class="ttdoc">Sample Rate: e.g 44100.</div><div class="ttdef"><b>Definition:</b> AudioTypes.h:53</div></div>
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<div class="ttc" id="astructaudio__tools_1_1_audio_info_html_a1ac7822956f57069d76da865d6b33c55"><div class="ttname"><a href="structaudio__tools_1_1_audio_info.html#a1ac7822956f57069d76da865d6b33c55">audio_tools::AudioInfo::channels</a></div><div class="ttdeci">uint16_t channels</div><div class="ttdoc">Number of channels: 2=stereo, 1=mono.</div><div class="ttdef"><b>Definition:</b> AudioTypes.h:55</div></div>
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<div class="ttc" id="astructaudio__tools_1_1_audio_info_html_aa65c89fa8336bfdc4f8d916d9d415a9f"><div class="ttname"><a href="structaudio__tools_1_1_audio_info.html#aa65c89fa8336bfdc4f8d916d9d415a9f">audio_tools::AudioInfo::bits_per_sample</a></div><div class="ttdeci">uint8_t bits_per_sample</div><div class="ttdoc">Number of bits per sample (int16_t = 16 bits)</div><div class="ttdef"><b>Definition:</b> AudioTypes.h:57</div></div>
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