documentation/code_VALMain.read_input_wave.html

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  20 <code class="code"><span class="keyword">let</span>&nbsp;read_input_wave&nbsp;=&nbsp;<span class="keyword">fun</span>&nbsp;argv&nbsp;<span class="keywordsign">-&gt;</span><br>
  21 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;n_input&nbsp;=&nbsp;(<span class="constructor">Array</span>.length&nbsp;argv)&nbsp;-&nbsp;3&nbsp;<span class="keyword">in</span><br>
  22 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">if</span>&nbsp;n_input&nbsp;&lt;&nbsp;0&nbsp;<span class="keyword">then</span>&nbsp;<br>
  23 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;raise&nbsp;<span class="constructor">Missing_Expression</span><br>
  24 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">else</span>&nbsp;<span class="keyword">if</span>&nbsp;n_input&nbsp;=&nbsp;0&nbsp;<span class="keyword">then</span>&nbsp;<br>
  25 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;([],&nbsp;[])<br>
  26 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">else</span><br>
  27 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="comment">(*&nbsp;open&nbsp;wave&nbsp;file&nbsp;*)</span><br>
  28 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;file_string_array&nbsp;=&nbsp;<span class="constructor">Array</span>.sub&nbsp;argv&nbsp;3&nbsp;n_input&nbsp;<span class="keyword">in</span><br>
  29 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;make_chemin&nbsp;s&nbsp;=&nbsp;io_macro_to_string&nbsp;<span class="constructor">Input_Route_string</span>&nbsp;^&nbsp;s&nbsp;<span class="keyword">in</span><br>
  30 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;file_chemin_string_array&nbsp;=&nbsp;<span class="constructor">Array</span>.map&nbsp;make_chemin&nbsp;file_string_array&nbsp;<span class="keyword">in</span><br>
  31 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;file_array&nbsp;=&nbsp;<span class="constructor">Array</span>.map&nbsp;<span class="constructor">Sndfile</span>.openfile&nbsp;file_chemin_string_array&nbsp;<span class="keyword">in</span><br>
  32 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;file_list&nbsp;=&nbsp;<span class="constructor">Array</span>.to_list&nbsp;file_array&nbsp;<span class="keyword">in</span><br>
  33 <br>
  34 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="comment">(*&nbsp;prepare&nbsp;data&nbsp;container&nbsp;*)</span><br>
  35 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;frames_array&nbsp;=&nbsp;<span class="constructor">Array</span>.map&nbsp;<span class="constructor">Int64</span>.to_int&nbsp;(<span class="constructor">Array</span>.map&nbsp;<span class="constructor">Sndfile</span>.frames&nbsp;file_array)&nbsp;<span class="keyword">in</span><br>
  36 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;create_data_array&nbsp;num&nbsp;=&nbsp;<span class="constructor">Array</span>.create&nbsp;num&nbsp;1.&nbsp;<span class="keyword">in</span><br>
  37 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;data_float_array_array&nbsp;=&nbsp;<span class="constructor">Array</span>.map&nbsp;create_data_array&nbsp;frames_array&nbsp;<span class="keyword">in</span><br>
  38 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;data_float_array_list&nbsp;=&nbsp;<span class="constructor">Array</span>.to_list&nbsp;data_float_array_array&nbsp;<span class="keyword">in</span><br>
  39 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br>
  40 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="comment">(*&nbsp;read&nbsp;sample&nbsp;rates&nbsp;and&nbsp;data&nbsp;*)</span><br>
  41 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;rate_list&nbsp;=&nbsp;<span class="constructor">List</span>.map&nbsp;<span class="constructor">Sndfile</span>.samplerate&nbsp;file_list&nbsp;<span class="keyword">in</span><br>
  42 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;_&nbsp;=&nbsp;<span class="constructor">List</span>.map2&nbsp;<span class="constructor">Sndfile</span>.read&nbsp;file_list&nbsp;data_float_array_list&nbsp;<span class="keyword">in</span><br>
  43 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">let</span>&nbsp;_&nbsp;=&nbsp;<span class="constructor">List</span>.map&nbsp;<span class="constructor">Sndfile</span>.close&nbsp;file_list&nbsp;<span class="keyword">in</span><br>
  44 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(rate_list,&nbsp;data_float_array_list)</code></body></html>