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  61. <h1 class="epydoc">Source Code for <a href="echonest.support.midi.MidiFileParser-module.html">Module echonest.support.midi.MidiFileParser</a></h1>
    62. 

  62. <pre class="py-src">
    63. 

  63. <a name="L1"></a><tt class="py-lineno">  1</tt>  <tt class="py-line"><tt class="py-comment"># -*- coding: ISO-8859-1 -*-</tt>
 </tt>
    64. 

  64. <a name="L2"></a><tt class="py-lineno">  2</tt>  <tt class="py-line">
 </tt>
    65. 

  65. <a name="L3"></a><tt class="py-lineno">  3</tt>  <tt class="py-line"><tt class="py-comment"># std library</tt>
 </tt>
    66. 

  66. <a name="L4"></a><tt class="py-lineno">  4</tt>  <tt class="py-line"><tt class="py-keyword">from</tt> <tt class="py-name">struct</tt> <tt class="py-keyword">import</tt> <tt class="py-name">unpack</tt> </tt>

    67. 

  67. <a name="L5"></a><tt class="py-lineno">  5</tt>  <tt class="py-line">
 </tt>
    68. 

  68. <a name="L6"></a><tt class="py-lineno">  6</tt>  <tt class="py-line"><tt class="py-comment"># uhh I don't really like this, but there are so many constants to </tt>
 </tt>
    69. 

  69. <a name="L7"></a><tt class="py-lineno">  7</tt>  <tt class="py-line"><tt class="py-comment"># import otherwise</tt>
 </tt>
    70. 

  70. <a name="L8"></a><tt class="py-lineno">  8</tt>  <tt class="py-line"><tt class="py-keyword">from</tt> <tt id="link-0" class="py-name" targets="Module echonest.support.midi.constants=echonest.support.midi.constants-module.html"><a title="echonest.support.midi.constants" class="py-name" href="#" onclick="return doclink('link-0', 'constants', 'link-0');">constants</a></tt> <tt class="py-keyword">import</tt> <tt class="py-op">*</tt> </tt>

    71. 

  71. <a name="L9"></a><tt class="py-lineno">  9</tt>  <tt class="py-line">
 </tt>
    72. 

  72. <a name="L10"></a><tt class="py-lineno"> 10</tt>  <tt class="py-line"><tt class="py-keyword">from</tt> <tt id="link-1" class="py-name" targets="Module echonest.support.midi.EventDispatcher=echonest.support.midi.EventDispatcher-module.html,Class echonest.support.midi.EventDispatcher.EventDispatcher=echonest.support.midi.EventDispatcher.EventDispatcher-class.html"><a title="echonest.support.midi.EventDispatcher
    73. 

  73. echonest.support.midi.EventDispatcher.EventDispatcher" class="py-name" href="#" onclick="return doclink('link-1', 'EventDispatcher', 'link-1');">EventDispatcher</a></tt> <tt class="py-keyword">import</tt> <tt id="link-2" class="py-name"><a title="echonest.support.midi.EventDispatcher
    74. 

  74. echonest.support.midi.EventDispatcher.EventDispatcher" class="py-name" href="#" onclick="return doclink('link-2', 'EventDispatcher', 'link-1');">EventDispatcher</a></tt> </tt>

    75. 

  75. <a name="L11"></a><tt class="py-lineno"> 11</tt>  <tt class="py-line">
 </tt>
    76. 

  76. <a name="MidiFileParser"></a><div id="MidiFileParser-def"><a name="L12"></a><tt class="py-lineno"> 12</tt> <a class="py-toggle" href="#" id="MidiFileParser-toggle" onclick="return toggle('MidiFileParser');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="echonest.support.midi.MidiFileParser.MidiFileParser-class.html">MidiFileParser</a><tt class="py-op">:</tt> </tt>

    77. 

  77. </div><div id="MidiFileParser-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="MidiFileParser-expanded"><a name="L13"></a><tt class="py-lineno"> 13</tt>  <tt class="py-line">
 </tt>
    78. 

  78. <a name="L14"></a><tt class="py-lineno"> 14</tt>  <tt class="py-line">    <tt class="py-docstring">"""
</tt> </tt>
    79. 

  79. <a name="L15"></a><tt class="py-lineno"> 15</tt>  <tt class="py-line"><tt class="py-docstring">    
</tt> </tt>
    80. 

  80. <a name="L16"></a><tt class="py-lineno"> 16</tt>  <tt class="py-line"><tt class="py-docstring">    The MidiFileParser is the lowest level parser that see the data as 
</tt> </tt>
    81. 

  81. <a name="L17"></a><tt class="py-lineno"> 17</tt>  <tt class="py-line"><tt class="py-docstring">    midi data. It generates events that gets triggered on the outstream.
</tt> </tt>
    82. 

  82. <a name="L18"></a><tt class="py-lineno"> 18</tt>  <tt class="py-line"><tt class="py-docstring">    
</tt> </tt>
    83. 

  83. <a name="L19"></a><tt class="py-lineno"> 19</tt>  <tt class="py-line"><tt class="py-docstring">    """</tt> </tt>

    84. 

  84. <a name="L20"></a><tt class="py-lineno"> 20</tt>  <tt class="py-line">
 </tt>
    85. 

  85. <a name="MidiFileParser.__init__"></a><div id="MidiFileParser.__init__-def"><a name="L21"></a><tt class="py-lineno"> 21</tt> <a class="py-toggle" href="#" id="MidiFileParser.__init__-toggle" onclick="return toggle('MidiFileParser.__init__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="echonest.support.midi.MidiFileParser.MidiFileParser-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">raw_in</tt><tt class="py-op">,</tt> <tt class="py-param">outstream</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>

    86. 

  86. </div><div id="MidiFileParser.__init__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="MidiFileParser.__init__-expanded"><a name="L22"></a><tt class="py-lineno"> 22</tt>  <tt class="py-line">
 </tt>
    87. 

  87. <a name="L23"></a><tt class="py-lineno"> 23</tt>  <tt class="py-line">        <tt class="py-docstring">"""
</tt> </tt>
    88. 

  88. <a name="L24"></a><tt class="py-lineno"> 24</tt>  <tt class="py-line"><tt class="py-docstring">        raw_data is the raw content of a midi file as a string.
</tt> </tt>
    89. 

  89. <a name="L25"></a><tt class="py-lineno"> 25</tt>  <tt class="py-line"><tt class="py-docstring">        """</tt> </tt>

    90. 

  90. <a name="L26"></a><tt class="py-lineno"> 26</tt>  <tt class="py-line">
 </tt>
    91. 

  91. <a name="L27"></a><tt class="py-lineno"> 27</tt>  <tt class="py-line">        <tt class="py-comment"># internal values, don't mess with 'em directly</tt>
 </tt>
    92. 

  92. <a name="L28"></a><tt class="py-lineno"> 28</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">raw_in</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt> </tt>

    93. 

  93. <a name="L29"></a><tt class="py-lineno"> 29</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dispatch</tt> <tt class="py-op">=</tt> <tt id="link-3" class="py-name"><a title="echonest.support.midi.EventDispatcher
    94. 

  94. echonest.support.midi.EventDispatcher.EventDispatcher" class="py-name" href="#" onclick="return doclink('link-3', 'EventDispatcher', 'link-1');">EventDispatcher</a></tt><tt class="py-op">(</tt><tt class="py-name">outstream</tt><tt class="py-op">)</tt> </tt>

    95. 

  95. <a name="L30"></a><tt class="py-lineno"> 30</tt>  <tt class="py-line">
 </tt>
    96. 

  96. <a name="L31"></a><tt class="py-lineno"> 31</tt>  <tt class="py-line">        <tt class="py-comment"># Used to keep track of stuff</tt>
 </tt>
    97. 

  97. <a name="L32"></a><tt class="py-lineno"> 32</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">_running_status</tt> <tt class="py-op">=</tt> <tt class="py-name">None</tt> </tt>

    98. 

  98. </div><a name="L33"></a><tt class="py-lineno"> 33</tt>  <tt class="py-line">
 </tt>
    99. 

  99. <a name="L34"></a><tt class="py-lineno"> 34</tt>  <tt class="py-line">
 </tt>
    100. 

  100. <a name="L35"></a><tt class="py-lineno"> 35</tt>  <tt class="py-line">
 </tt>
    101. 

  101. <a name="L36"></a><tt class="py-lineno"> 36</tt>  <tt class="py-line">
 </tt>
    102. 

  102. <a name="MidiFileParser.parseMThdChunk"></a><div id="MidiFileParser.parseMThdChunk-def"><a name="L37"></a><tt class="py-lineno"> 37</tt> <a class="py-toggle" href="#" id="MidiFileParser.parseMThdChunk-toggle" onclick="return toggle('MidiFileParser.parseMThdChunk');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="echonest.support.midi.MidiFileParser.MidiFileParser-class.html#parseMThdChunk">parseMThdChunk</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>

    103. 

  103. </div><div id="MidiFileParser.parseMThdChunk-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="MidiFileParser.parseMThdChunk-expanded"><a name="L38"></a><tt class="py-lineno"> 38</tt>  <tt class="py-line">        
 </tt>
    104. 

  104. <a name="L39"></a><tt class="py-lineno"> 39</tt>  <tt class="py-line">        <tt class="py-docstring">"Parses the header chunk"</tt> </tt>

    105. 

  105. <a name="L40"></a><tt class="py-lineno"> 40</tt>  <tt class="py-line">        
 </tt>
    106. 

  106. <a name="L41"></a><tt class="py-lineno"> 41</tt>  <tt class="py-line">        <tt class="py-name">raw_in</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">raw_in</tt> </tt>

    107. 

  107. <a name="L42"></a><tt class="py-lineno"> 42</tt>  <tt class="py-line">
 </tt>
    108. 

  108. <a name="L43"></a><tt class="py-lineno"> 43</tt>  <tt class="py-line">        <tt class="py-name">header_chunk_type</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-4" class="py-name" targets="Method echonest.support.midi.RawInstreamFile.RawInstreamFile.nextSlice()=echonest.support.midi.RawInstreamFile.RawInstreamFile-class.html#nextSlice"><a title="echonest.support.midi.RawInstreamFile.RawInstreamFile.nextSlice" class="py-name" href="#" onclick="return doclink('link-4', 'nextSlice', 'link-4');">nextSlice</a></tt><tt class="py-op">(</tt><tt class="py-number">4</tt><tt class="py-op">)</tt> </tt>

    109. 

  109. <a name="L44"></a><tt class="py-lineno"> 44</tt>  <tt class="py-line">        <tt class="py-name">header_chunk_zise</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-5" class="py-name" targets="Function echonest.support.midi.DataTypeConverters.readBew()=echonest.support.midi.DataTypeConverters-module.html#readBew,Method echonest.support.midi.RawInstreamFile.RawInstreamFile.readBew()=echonest.support.midi.RawInstreamFile.RawInstreamFile-class.html#readBew"><a title="echonest.support.midi.DataTypeConverters.readBew
    110. 

  110. echonest.support.midi.RawInstreamFile.RawInstreamFile.readBew" class="py-name" href="#" onclick="return doclink('link-5', 'readBew', 'link-5');">readBew</a></tt><tt class="py-op">(</tt><tt class="py-number">4</tt><tt class="py-op">)</tt> </tt>

    111. 

  111. <a name="L45"></a><tt class="py-lineno"> 45</tt>  <tt class="py-line">
 </tt>
    112. 

  112. <a name="L46"></a><tt class="py-lineno"> 46</tt>  <tt class="py-line">        <tt class="py-comment"># check if it is a proper midi file</tt>
 </tt>
    113. 

  113. <a name="L47"></a><tt class="py-lineno"> 47</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">header_chunk_type</tt> <tt class="py-op">!=</tt> <tt class="py-string">'MThd'</tt><tt class="py-op">:</tt> </tt>

    114. 

  114. <a name="L48"></a><tt class="py-lineno"> 48</tt>  <tt class="py-line">            <tt class="py-keyword">raise</tt> <tt class="py-name">TypeError</tt><tt class="py-op">,</tt> <tt class="py-string">"It is not a valid midi file!"</tt> </tt>

    115. 

  115. <a name="L49"></a><tt class="py-lineno"> 49</tt>  <tt class="py-line">
 </tt>
    116. 

  116. <a name="L50"></a><tt class="py-lineno"> 50</tt>  <tt class="py-line">        <tt class="py-comment"># Header values are at fixed locations, so no reason to be clever</tt>
 </tt>
    117. 

  117. <a name="L51"></a><tt class="py-lineno"> 51</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">format</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-6" class="py-name"><a title="echonest.support.midi.DataTypeConverters.readBew
    118. 

  118. echonest.support.midi.RawInstreamFile.RawInstreamFile.readBew" class="py-name" href="#" onclick="return doclink('link-6', 'readBew', 'link-5');">readBew</a></tt><tt class="py-op">(</tt><tt class="py-number">2</tt><tt class="py-op">)</tt> </tt>

    119. 

  119. <a name="L52"></a><tt class="py-lineno"> 52</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">nTracks</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-7" class="py-name"><a title="echonest.support.midi.DataTypeConverters.readBew
    120. 

  120. echonest.support.midi.RawInstreamFile.RawInstreamFile.readBew" class="py-name" href="#" onclick="return doclink('link-7', 'readBew', 'link-5');">readBew</a></tt><tt class="py-op">(</tt><tt class="py-number">2</tt><tt class="py-op">)</tt> </tt>

    121. 

  121. <a name="L53"></a><tt class="py-lineno"> 53</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">division</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-8" class="py-name"><a title="echonest.support.midi.DataTypeConverters.readBew
    122. 

  122. echonest.support.midi.RawInstreamFile.RawInstreamFile.readBew" class="py-name" href="#" onclick="return doclink('link-8', 'readBew', 'link-5');">readBew</a></tt><tt class="py-op">(</tt><tt class="py-number">2</tt><tt class="py-op">)</tt> </tt>

    123. 

  123. <a name="L54"></a><tt class="py-lineno"> 54</tt>  <tt class="py-line">        
 </tt>
    124. 

  124. <a name="L55"></a><tt class="py-lineno"> 55</tt>  <tt class="py-line">        <tt class="py-comment"># Theoretically a header larger than 6 bytes can exist</tt>
 </tt>
    125. 

  125. <a name="L56"></a><tt class="py-lineno"> 56</tt>  <tt class="py-line">        <tt class="py-comment"># but no one has seen one in the wild</tt>
 </tt>
    126. 

  126. <a name="L57"></a><tt class="py-lineno"> 57</tt>  <tt class="py-line">        <tt class="py-comment"># But correctly ignore unknown data if it is though</tt>
 </tt>
    127. 

  127. <a name="L58"></a><tt class="py-lineno"> 58</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">header_chunk_zise</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">6</tt><tt class="py-op">:</tt> </tt>

    128. 

  128. <a name="L59"></a><tt class="py-lineno"> 59</tt>  <tt class="py-line">            <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-9" class="py-name" targets="Method echonest.support.midi.RawInstreamFile.RawInstreamFile.moveCursor()=echonest.support.midi.RawInstreamFile.RawInstreamFile-class.html#moveCursor"><a title="echonest.support.midi.RawInstreamFile.RawInstreamFile.moveCursor" class="py-name" href="#" onclick="return doclink('link-9', 'moveCursor', 'link-9');">moveCursor</a></tt><tt class="py-op">(</tt><tt class="py-name">header_chunk_zise</tt><tt class="py-op">-</tt><tt class="py-number">6</tt><tt class="py-op">)</tt> </tt>

    129. 

  129. <a name="L60"></a><tt class="py-lineno"> 60</tt>  <tt class="py-line">
 </tt>
    130. 

  130. <a name="L61"></a><tt class="py-lineno"> 61</tt>  <tt class="py-line">        <tt class="py-comment"># call the header event handler on the stream</tt>
 </tt>
    131. 

  131. <a name="L62"></a><tt class="py-lineno"> 62</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dispatch</tt><tt class="py-op">.</tt><tt id="link-10" class="py-name" targets="Method echonest.support.midi.EventDispatcher.EventDispatcher.header()=echonest.support.midi.EventDispatcher.EventDispatcher-class.html#header,Method echonest.support.midi.MidiOutFile.MidiOutFile.header()=echonest.support.midi.MidiOutFile.MidiOutFile-class.html#header,Method echonest.support.midi.MidiOutStream.MidiOutStream.header()=echonest.support.midi.MidiOutStream.MidiOutStream-class.html#header,Method echonest.support.midi.MidiToText.MidiToText.header()=echonest.support.midi.MidiToText.MidiToText-class.html#header"><a title="echonest.support.midi.EventDispatcher.EventDispatcher.header
    132. 

  132. echonest.support.midi.MidiOutFile.MidiOutFile.header
    133. 

  133. echonest.support.midi.MidiOutStream.MidiOutStream.header
    134. 

  134. echonest.support.midi.MidiToText.MidiToText.header" class="py-name" href="#" onclick="return doclink('link-10', 'header', 'link-10');">header</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">format</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">nTracks</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">division</tt><tt class="py-op">)</tt> </tt>

    135. 

  135. </div><a name="L63"></a><tt class="py-lineno"> 63</tt>  <tt class="py-line">
 </tt>
    136. 

  136. <a name="L64"></a><tt class="py-lineno"> 64</tt>  <tt class="py-line">
 </tt>
    137. 

  137. <a name="L65"></a><tt class="py-lineno"> 65</tt>  <tt class="py-line">
 </tt>
    138. 

  138. <a name="MidiFileParser.parseMTrkChunk"></a><div id="MidiFileParser.parseMTrkChunk-def"><a name="L66"></a><tt class="py-lineno"> 66</tt> <a class="py-toggle" href="#" id="MidiFileParser.parseMTrkChunk-toggle" onclick="return toggle('MidiFileParser.parseMTrkChunk');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="echonest.support.midi.MidiFileParser.MidiFileParser-class.html#parseMTrkChunk">parseMTrkChunk</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>

    139. 

  139. </div><div id="MidiFileParser.parseMTrkChunk-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="MidiFileParser.parseMTrkChunk-expanded"><a name="L67"></a><tt class="py-lineno"> 67</tt>  <tt class="py-line">        
 </tt>
    140. 

  140. <a name="L68"></a><tt class="py-lineno"> 68</tt>  <tt class="py-line">        <tt class="py-docstring">"Parses a track chunk. This is the most important part of the parser."</tt> </tt>

    141. 

  141. <a name="L69"></a><tt class="py-lineno"> 69</tt>  <tt class="py-line">        
 </tt>
    142. 

  142. <a name="L70"></a><tt class="py-lineno"> 70</tt>  <tt class="py-line">        <tt class="py-comment"># set time to 0 at start of a track</tt>
 </tt>
    143. 

  143. <a name="L71"></a><tt class="py-lineno"> 71</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dispatch</tt><tt class="py-op">.</tt><tt id="link-11" class="py-name" targets="Method echonest.support.midi.EventDispatcher.EventDispatcher.reset_time()=echonest.support.midi.EventDispatcher.EventDispatcher-class.html#reset_time,Method echonest.support.midi.MidiOutStream.MidiOutStream.reset_time()=echonest.support.midi.MidiOutStream.MidiOutStream-class.html#reset_time"><a title="echonest.support.midi.EventDispatcher.EventDispatcher.reset_time
    144. 

  144. echonest.support.midi.MidiOutStream.MidiOutStream.reset_time" class="py-name" href="#" onclick="return doclink('link-11', 'reset_time', 'link-11');">reset_time</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>

    145. 

  145. <a name="L72"></a><tt class="py-lineno"> 72</tt>  <tt class="py-line">        
 </tt>
    146. 

  146. <a name="L73"></a><tt class="py-lineno"> 73</tt>  <tt class="py-line">        <tt class="py-name">dispatch</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dispatch</tt> </tt>

    147. 

  147. <a name="L74"></a><tt class="py-lineno"> 74</tt>  <tt class="py-line">        <tt class="py-name">raw_in</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">raw_in</tt> </tt>

    148. 

  148. <a name="L75"></a><tt class="py-lineno"> 75</tt>  <tt class="py-line">        
 </tt>
    149. 

  149. <a name="L76"></a><tt class="py-lineno"> 76</tt>  <tt class="py-line">        <tt class="py-comment"># Trigger event at the start of a track</tt>
 </tt>
    150. 

  150. <a name="L77"></a><tt class="py-lineno"> 77</tt>  <tt class="py-line">        <tt class="py-name">dispatch</tt><tt class="py-op">.</tt><tt id="link-12" class="py-name" targets="Method echonest.support.midi.EventDispatcher.EventDispatcher.start_of_track()=echonest.support.midi.EventDispatcher.EventDispatcher-class.html#start_of_track,Method echonest.support.midi.MidiOutFile.MidiOutFile.start_of_track()=echonest.support.midi.MidiOutFile.MidiOutFile-class.html#start_of_track,Method echonest.support.midi.MidiOutStream.MidiOutStream.start_of_track()=echonest.support.midi.MidiOutStream.MidiOutStream-class.html#start_of_track,Method echonest.support.midi.MidiToText.MidiToText.start_of_track()=echonest.support.midi.MidiToText.MidiToText-class.html#start_of_track"><a title="echonest.support.midi.EventDispatcher.EventDispatcher.start_of_track
    151. 

  151. echonest.support.midi.MidiOutFile.MidiOutFile.start_of_track
    152. 

  152. echonest.support.midi.MidiOutStream.MidiOutStream.start_of_track
    153. 

  153. echonest.support.midi.MidiToText.MidiToText.start_of_track" class="py-name" href="#" onclick="return doclink('link-12', 'start_of_track', 'link-12');">start_of_track</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">_current_track</tt><tt class="py-op">)</tt> </tt>

    154. 

  154. <a name="L78"></a><tt class="py-lineno"> 78</tt>  <tt class="py-line">        <tt class="py-comment"># position cursor after track header</tt>
 </tt>
    155. 

  155. <a name="L79"></a><tt class="py-lineno"> 79</tt>  <tt class="py-line">        <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-13" class="py-name"><a title="echonest.support.midi.RawInstreamFile.RawInstreamFile.moveCursor" class="py-name" href="#" onclick="return doclink('link-13', 'moveCursor', 'link-9');">moveCursor</a></tt><tt class="py-op">(</tt><tt class="py-number">4</tt><tt class="py-op">)</tt> </tt>

    156. 

  156. <a name="L80"></a><tt class="py-lineno"> 80</tt>  <tt class="py-line">        <tt class="py-comment"># unsigned long is 4 bytes</tt>
 </tt>
    157. 

  157. <a name="L81"></a><tt class="py-lineno"> 81</tt>  <tt class="py-line">        <tt class="py-name">tracklength</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-14" class="py-name"><a title="echonest.support.midi.DataTypeConverters.readBew
    158. 

  158. echonest.support.midi.RawInstreamFile.RawInstreamFile.readBew" class="py-name" href="#" onclick="return doclink('link-14', 'readBew', 'link-5');">readBew</a></tt><tt class="py-op">(</tt><tt class="py-number">4</tt><tt class="py-op">)</tt> </tt>

    159. 

  159. <a name="L82"></a><tt class="py-lineno"> 82</tt>  <tt class="py-line">        <tt class="py-name">track_endposition</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-15" class="py-name" targets="Method echonest.support.midi.RawInstreamFile.RawInstreamFile.getCursor()=echonest.support.midi.RawInstreamFile.RawInstreamFile-class.html#getCursor"><a title="echonest.support.midi.RawInstreamFile.RawInstreamFile.getCursor" class="py-name" href="#" onclick="return doclink('link-15', 'getCursor', 'link-15');">getCursor</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> <tt class="py-op">+</tt> <tt class="py-name">tracklength</tt> <tt class="py-comment"># absolute position!</tt> </tt>

    160. 

  160. <a name="L83"></a><tt class="py-lineno"> 83</tt>  <tt class="py-line">
 </tt>
    161. 

  161. <a name="L84"></a><tt class="py-lineno"> 84</tt>  <tt class="py-line">        <tt class="py-keyword">while</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-16" class="py-name"><a title="echonest.support.midi.RawInstreamFile.RawInstreamFile.getCursor" class="py-name" href="#" onclick="return doclink('link-16', 'getCursor', 'link-15');">getCursor</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">track_endposition</tt><tt class="py-op">:</tt> </tt>

    162. 

  162. <a name="L85"></a><tt class="py-lineno"> 85</tt>  <tt class="py-line">        
 </tt>
    163. 

  163. <a name="L86"></a><tt class="py-lineno"> 86</tt>  <tt class="py-line">            <tt class="py-comment"># find relative time of the event</tt>
 </tt>
    164. 

  164. <a name="L87"></a><tt class="py-lineno"> 87</tt>  <tt class="py-line">            <tt class="py-name">time</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-17" class="py-name" targets="Method echonest.support.midi.RawInstreamFile.RawInstreamFile.readVarLen()=echonest.support.midi.RawInstreamFile.RawInstreamFile-class.html#readVarLen"><a title="echonest.support.midi.RawInstreamFile.RawInstreamFile.readVarLen" class="py-name" href="#" onclick="return doclink('link-17', 'readVarLen', 'link-17');">readVarLen</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>

    165. 

  165. <a name="L88"></a><tt class="py-lineno"> 88</tt>  <tt class="py-line">            <tt class="py-name">dispatch</tt><tt class="py-op">.</tt><tt id="link-18" class="py-name" targets="Method echonest.support.midi.EventDispatcher.EventDispatcher.update_time()=echonest.support.midi.EventDispatcher.EventDispatcher-class.html#update_time,Method echonest.support.midi.MidiOutStream.MidiOutStream.update_time()=echonest.support.midi.MidiOutStream.MidiOutStream-class.html#update_time"><a title="echonest.support.midi.EventDispatcher.EventDispatcher.update_time
    166. 

  166. echonest.support.midi.MidiOutStream.MidiOutStream.update_time" class="py-name" href="#" onclick="return doclink('link-18', 'update_time', 'link-18');">update_time</a></tt><tt class="py-op">(</tt><tt class="py-name">time</tt><tt class="py-op">)</tt> </tt>

    167. 

  167. <a name="L89"></a><tt class="py-lineno"> 89</tt>  <tt class="py-line">            
 </tt>
    168. 

  168. <a name="L90"></a><tt class="py-lineno"> 90</tt>  <tt class="py-line">            <tt class="py-comment"># be aware of running status!!!!</tt>
 </tt>
    169. 

  169. <a name="L91"></a><tt class="py-lineno"> 91</tt>  <tt class="py-line">            <tt class="py-name">peak_ahead</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-19" class="py-name"><a title="echonest.support.midi.DataTypeConverters.readBew
    170. 

  170. echonest.support.midi.RawInstreamFile.RawInstreamFile.readBew" class="py-name" href="#" onclick="return doclink('link-19', 'readBew', 'link-5');">readBew</a></tt><tt class="py-op">(</tt><tt class="py-name">move_cursor</tt><tt class="py-op">=</tt><tt class="py-number">0</tt><tt class="py-op">)</tt> </tt>

    171. 

  171. <a name="L92"></a><tt class="py-lineno"> 92</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-op">(</tt><tt class="py-name">peak_ahead</tt> <tt class="py-op">&amp;</tt> <tt class="py-number">0x80</tt><tt class="py-op">)</tt><tt class="py-op">:</tt>  </tt>

    172. 

  172. <a name="L93"></a><tt class="py-lineno"> 93</tt>  <tt class="py-line">                <tt class="py-comment"># the status byte has the high bit set, so it</tt>
 </tt>
    173. 

  173. <a name="L94"></a><tt class="py-lineno"> 94</tt>  <tt class="py-line">                <tt class="py-comment"># was not running data but proper status byte</tt>
 </tt>
    174. 

  174. <a name="L95"></a><tt class="py-lineno"> 95</tt>  <tt class="py-line">                <tt class="py-name">status</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">_running_status</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-20" class="py-name"><a title="echonest.support.midi.DataTypeConverters.readBew
    175. 

  175. echonest.support.midi.RawInstreamFile.RawInstreamFile.readBew" class="py-name" href="#" onclick="return doclink('link-20', 'readBew', 'link-5');">readBew</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>

    176. 

  176. <a name="L96"></a><tt class="py-lineno"> 96</tt>  <tt class="py-line">            <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>

    177. 

  177. <a name="L97"></a><tt class="py-lineno"> 97</tt>  <tt class="py-line">                <tt class="py-comment"># use that darn running status</tt>
 </tt>
    178. 

  178. <a name="L98"></a><tt class="py-lineno"> 98</tt>  <tt class="py-line">                <tt class="py-name">status</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">_running_status</tt> </tt>

    179. 

  179. <a name="L99"></a><tt class="py-lineno"> 99</tt>  <tt class="py-line">                <tt class="py-comment"># could it be illegal data ?? Do we need to test for that?</tt>
 </tt>
    180. 

  180. <a name="L100"></a><tt class="py-lineno">100</tt>  <tt class="py-line">                <tt class="py-comment"># I need more example midi files to be shure.</tt>
 </tt>
    181. 

  181. <a name="L101"></a><tt class="py-lineno">101</tt>  <tt class="py-line">                
 </tt>
    182. 

  182. <a name="L102"></a><tt class="py-lineno">102</tt>  <tt class="py-line">                <tt class="py-comment"># Also, while I am almost certain that no realtime </tt>
 </tt>
    183. 

  183. <a name="L103"></a><tt class="py-lineno">103</tt>  <tt class="py-line">                <tt class="py-comment"># messages will pop up in a midi file, I might need to </tt>
 </tt>
    184. 

  184. <a name="L104"></a><tt class="py-lineno">104</tt>  <tt class="py-line">                <tt class="py-comment"># change my mind later.</tt>
 </tt>
    185. 

  185. <a name="L105"></a><tt class="py-lineno">105</tt>  <tt class="py-line">
 </tt>
    186. 

  186. <a name="L106"></a><tt class="py-lineno">106</tt>  <tt class="py-line">            <tt class="py-comment"># we need to look at nibbles here</tt>
 </tt>
    187. 

  187. <a name="L107"></a><tt class="py-lineno">107</tt>  <tt class="py-line">            <tt class="py-name">hi_nible</tt><tt class="py-op">,</tt> <tt class="py-name">lo_nible</tt> <tt class="py-op">=</tt> <tt class="py-name">status</tt> <tt class="py-op">&amp;</tt> <tt class="py-number">0xF0</tt><tt class="py-op">,</tt> <tt class="py-name">status</tt> <tt class="py-op">&amp;</tt> <tt class="py-number">0x0F</tt> </tt>

    188. 

  188. <a name="L108"></a><tt class="py-lineno">108</tt>  <tt class="py-line">            
 </tt>
    189. 

  189. <a name="L109"></a><tt class="py-lineno">109</tt>  <tt class="py-line">            <tt class="py-comment"># match up with events</tt>
 </tt>
    190. 

  190. <a name="L110"></a><tt class="py-lineno">110</tt>  <tt class="py-line">
 </tt>
    191. 

  191. <a name="L111"></a><tt class="py-lineno">111</tt>  <tt class="py-line">            <tt class="py-comment"># Is it a meta_event ??</tt>
 </tt>
    192. 

  192. <a name="L112"></a><tt class="py-lineno">112</tt>  <tt class="py-line">            <tt class="py-comment"># these only exists in midi files, not in transmitted midi data</tt>
 </tt>
    193. 

  193. <a name="L113"></a><tt class="py-lineno">113</tt>  <tt class="py-line">            <tt class="py-comment"># In transmitted data META_EVENT (0xFF) is a system reset</tt>
 </tt>
    194. 

  194. <a name="L114"></a><tt class="py-lineno">114</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">status</tt> <tt class="py-op">==</tt> <tt id="link-21" class="py-name" targets="Variable echonest.support.midi.constants.META_EVENT=echonest.support.midi.constants-module.html#META_EVENT"><a title="echonest.support.midi.constants.META_EVENT" class="py-name" href="#" onclick="return doclink('link-21', 'META_EVENT', 'link-21');">META_EVENT</a></tt><tt class="py-op">:</tt> </tt>

    195. 

  195. <a name="L115"></a><tt class="py-lineno">115</tt>  <tt class="py-line">                <tt class="py-name">meta_type</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-22" class="py-name"><a title="echonest.support.midi.DataTypeConverters.readBew
    196. 

  196. echonest.support.midi.RawInstreamFile.RawInstreamFile.readBew" class="py-name" href="#" onclick="return doclink('link-22', 'readBew', 'link-5');">readBew</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>

    197. 

  197. <a name="L116"></a><tt class="py-lineno">116</tt>  <tt class="py-line">                <tt class="py-name">meta_length</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-23" class="py-name"><a title="echonest.support.midi.RawInstreamFile.RawInstreamFile.readVarLen" class="py-name" href="#" onclick="return doclink('link-23', 'readVarLen', 'link-17');">readVarLen</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>

    198. 

  198. <a name="L117"></a><tt class="py-lineno">117</tt>  <tt class="py-line">                <tt class="py-name">meta_data</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-24" class="py-name"><a title="echonest.support.midi.RawInstreamFile.RawInstreamFile.nextSlice" class="py-name" href="#" onclick="return doclink('link-24', 'nextSlice', 'link-4');">nextSlice</a></tt><tt class="py-op">(</tt><tt class="py-name">meta_length</tt><tt class="py-op">)</tt> </tt>

    199. 

  199. <a name="L118"></a><tt class="py-lineno">118</tt>  <tt class="py-line">                <tt class="py-name">dispatch</tt><tt class="py-op">.</tt><tt id="link-25" class="py-name" targets="Method echonest.support.midi.EventDispatcher.EventDispatcher.meta_event()=echonest.support.midi.EventDispatcher.EventDispatcher-class.html#meta_event,Method echonest.support.midi.MidiOutFile.MidiOutFile.meta_event()=echonest.support.midi.MidiOutFile.MidiOutFile-class.html#meta_event,Method echonest.support.midi.MidiOutStream.MidiOutStream.meta_event()=echonest.support.midi.MidiOutStream.MidiOutStream-class.html#meta_event,Method echonest.support.midi.MidiToText.MidiToText.meta_event()=echonest.support.midi.MidiToText.MidiToText-class.html#meta_event"><a title="echonest.support.midi.EventDispatcher.EventDispatcher.meta_event
    200. 

  200. echonest.support.midi.MidiOutFile.MidiOutFile.meta_event
    201. 

  201. echonest.support.midi.MidiOutStream.MidiOutStream.meta_event
    202. 

  202. echonest.support.midi.MidiToText.MidiToText.meta_event" class="py-name" href="#" onclick="return doclink('link-25', 'meta_event', 'link-25');">meta_event</a></tt><tt class="py-op">(</tt><tt class="py-name">meta_type</tt><tt class="py-op">,</tt> <tt class="py-name">meta_data</tt><tt class="py-op">)</tt> </tt>

    203. 

  203. <a name="L119"></a><tt class="py-lineno">119</tt>  <tt class="py-line">
 </tt>
    204. 

  204. <a name="L120"></a><tt class="py-lineno">120</tt>  <tt class="py-line">
 </tt>
    205. 

  205. <a name="L121"></a><tt class="py-lineno">121</tt>  <tt class="py-line">            <tt class="py-comment"># Is it a sysex_event ??</tt>
 </tt>
    206. 

  206. <a name="L122"></a><tt class="py-lineno">122</tt>  <tt class="py-line">            <tt class="py-keyword">elif</tt> <tt class="py-name">status</tt> <tt class="py-op">==</tt> <tt id="link-26" class="py-name" targets="Variable echonest.support.midi.constants.SYSTEM_EXCLUSIVE=echonest.support.midi.constants-module.html#SYSTEM_EXCLUSIVE"><a title="echonest.support.midi.constants.SYSTEM_EXCLUSIVE" class="py-name" href="#" onclick="return doclink('link-26', 'SYSTEM_EXCLUSIVE', 'link-26');">SYSTEM_EXCLUSIVE</a></tt><tt class="py-op">:</tt> </tt>

    207. 

  207. <a name="L123"></a><tt class="py-lineno">123</tt>  <tt class="py-line">                <tt class="py-comment"># ignore sysex events</tt>
 </tt>
    208. 

  208. <a name="L124"></a><tt class="py-lineno">124</tt>  <tt class="py-line">                <tt class="py-name">sysex_length</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-27" class="py-name"><a title="echonest.support.midi.RawInstreamFile.RawInstreamFile.readVarLen" class="py-name" href="#" onclick="return doclink('link-27', 'readVarLen', 'link-17');">readVarLen</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>

    209. 

  209. <a name="L125"></a><tt class="py-lineno">125</tt>  <tt class="py-line">                <tt class="py-comment"># don't read sysex terminator</tt>
 </tt>
    210. 

  210. <a name="L126"></a><tt class="py-lineno">126</tt>  <tt class="py-line">                <tt class="py-name">sysex_data</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-28" class="py-name"><a title="echonest.support.midi.RawInstreamFile.RawInstreamFile.nextSlice" class="py-name" href="#" onclick="return doclink('link-28', 'nextSlice', 'link-4');">nextSlice</a></tt><tt class="py-op">(</tt><tt class="py-name">sysex_length</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">)</tt> </tt>

    211. 

  211. <a name="L127"></a><tt class="py-lineno">127</tt>  <tt class="py-line">                <tt class="py-comment"># only read last data byte if it is a sysex terminator</tt>
 </tt>
    212. 

  212. <a name="L128"></a><tt class="py-lineno">128</tt>  <tt class="py-line">                <tt class="py-comment"># It should allways be there, but better safe than sorry</tt>
 </tt>
    213. 

  213. <a name="L129"></a><tt class="py-lineno">129</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-29" class="py-name"><a title="echonest.support.midi.DataTypeConverters.readBew
    214. 

  214. echonest.support.midi.RawInstreamFile.RawInstreamFile.readBew" class="py-name" href="#" onclick="return doclink('link-29', 'readBew', 'link-5');">readBew</a></tt><tt class="py-op">(</tt><tt class="py-name">move_cursor</tt><tt class="py-op">=</tt><tt class="py-number">0</tt><tt class="py-op">)</tt> <tt class="py-op">==</tt> <tt id="link-30" class="py-name" targets="Variable echonest.support.midi.constants.END_OFF_EXCLUSIVE=echonest.support.midi.constants-module.html#END_OFF_EXCLUSIVE"><a title="echonest.support.midi.constants.END_OFF_EXCLUSIVE" class="py-name" href="#" onclick="return doclink('link-30', 'END_OFF_EXCLUSIVE', 'link-30');">END_OFF_EXCLUSIVE</a></tt><tt class="py-op">:</tt> </tt>

    215. 

  215. <a name="L130"></a><tt class="py-lineno">130</tt>  <tt class="py-line">                    <tt class="py-name">eo_sysex</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-31" class="py-name"><a title="echonest.support.midi.DataTypeConverters.readBew
    216. 

  216. echonest.support.midi.RawInstreamFile.RawInstreamFile.readBew" class="py-name" href="#" onclick="return doclink('link-31', 'readBew', 'link-5');">readBew</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>

    217. 

  217. <a name="L131"></a><tt class="py-lineno">131</tt>  <tt class="py-line">                <tt class="py-name">dispatch</tt><tt class="py-op">.</tt><tt id="link-32" class="py-name" targets="Method echonest.support.midi.EventDispatcher.EventDispatcher.sysex_event()=echonest.support.midi.EventDispatcher.EventDispatcher-class.html#sysex_event,Method echonest.support.midi.MidiToText.MidiToText.sysex_event()=echonest.support.midi.MidiToText.MidiToText-class.html#sysex_event"><a title="echonest.support.midi.EventDispatcher.EventDispatcher.sysex_event
    218. 

  218. echonest.support.midi.MidiToText.MidiToText.sysex_event" class="py-name" href="#" onclick="return doclink('link-32', 'sysex_event', 'link-32');">sysex_event</a></tt><tt class="py-op">(</tt><tt class="py-name">sysex_data</tt><tt class="py-op">)</tt> </tt>

    219. 

  219. <a name="L132"></a><tt class="py-lineno">132</tt>  <tt class="py-line">                <tt class="py-comment"># the sysex code has not been properly tested, and might be fishy!</tt>
 </tt>
    220. 

  220. <a name="L133"></a><tt class="py-lineno">133</tt>  <tt class="py-line">
 </tt>
    221. 

  221. <a name="L134"></a><tt class="py-lineno">134</tt>  <tt class="py-line">
 </tt>
    222. 

  222. <a name="L135"></a><tt class="py-lineno">135</tt>  <tt class="py-line">            <tt class="py-comment"># is it a system common event?</tt>
 </tt>
    223. 

  223. <a name="L136"></a><tt class="py-lineno">136</tt>  <tt class="py-line">            <tt class="py-keyword">elif</tt> <tt class="py-name">hi_nible</tt> <tt class="py-op">==</tt> <tt class="py-number">0xF0</tt><tt class="py-op">:</tt> <tt class="py-comment"># Hi bits are set then</tt> </tt>

    224. 

  224. <a name="L137"></a><tt class="py-lineno">137</tt>  <tt class="py-line">                <tt class="py-name">data_sizes</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt>
 </tt>
    225. 

  225. <a name="L138"></a><tt class="py-lineno">138</tt>  <tt class="py-line">                    <tt id="link-33" class="py-name" targets="Variable echonest.support.midi.constants.MTC=echonest.support.midi.constants-module.html#MTC"><a title="echonest.support.midi.constants.MTC" class="py-name" href="#" onclick="return doclink('link-33', 'MTC', 'link-33');">MTC</a></tt><tt class="py-op">:</tt><tt class="py-number">1</tt><tt class="py-op">,</tt>
 </tt>
    226. 

  226. <a name="L139"></a><tt class="py-lineno">139</tt>  <tt class="py-line">                    <tt id="link-34" class="py-name" targets="Variable echonest.support.midi.constants.SONG_POSITION_POINTER=echonest.support.midi.constants-module.html#SONG_POSITION_POINTER"><a title="echonest.support.midi.constants.SONG_POSITION_POINTER" class="py-name" href="#" onclick="return doclink('link-34', 'SONG_POSITION_POINTER', 'link-34');">SONG_POSITION_POINTER</a></tt><tt class="py-op">:</tt><tt class="py-number">2</tt><tt class="py-op">,</tt>
 </tt>
    227. 

  227. <a name="L140"></a><tt class="py-lineno">140</tt>  <tt class="py-line">                    <tt id="link-35" class="py-name" targets="Variable echonest.support.midi.constants.SONG_SELECT=echonest.support.midi.constants-module.html#SONG_SELECT"><a title="echonest.support.midi.constants.SONG_SELECT" class="py-name" href="#" onclick="return doclink('link-35', 'SONG_SELECT', 'link-35');">SONG_SELECT</a></tt><tt class="py-op">:</tt><tt class="py-number">1</tt><tt class="py-op">,</tt>
 </tt>
    228. 

  228. <a name="L141"></a><tt class="py-lineno">141</tt>  <tt class="py-line">                <tt class="py-op">}</tt> </tt>

    229. 

  229. <a name="L142"></a><tt class="py-lineno">142</tt>  <tt class="py-line">                <tt class="py-name">data_size</tt> <tt class="py-op">=</tt> <tt class="py-name">data_sizes</tt><tt class="py-op">.</tt><tt id="link-36" class="py-name" targets="Method echonest.action.Edit.get()=echonest.action.Edit-class.html#get"><a title="echonest.action.Edit.get" class="py-name" href="#" onclick="return doclink('link-36', 'get', 'link-36');">get</a></tt><tt class="py-op">(</tt><tt class="py-name">hi_nible</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt> </tt>

    230. 

  230. <a name="L143"></a><tt class="py-lineno">143</tt>  <tt class="py-line">                <tt class="py-name">common_data</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-37" class="py-name"><a title="echonest.support.midi.RawInstreamFile.RawInstreamFile.nextSlice" class="py-name" href="#" onclick="return doclink('link-37', 'nextSlice', 'link-4');">nextSlice</a></tt><tt class="py-op">(</tt><tt class="py-name">data_size</tt><tt class="py-op">)</tt> </tt>

    231. 

  231. <a name="L144"></a><tt class="py-lineno">144</tt>  <tt class="py-line">                <tt class="py-name">common_type</tt> <tt class="py-op">=</tt> <tt class="py-name">lo_nible</tt> </tt>

    232. 

  232. <a name="L145"></a><tt class="py-lineno">145</tt>  <tt class="py-line">                <tt class="py-name">dispatch</tt><tt class="py-op">.</tt><tt class="py-name">system_common</tt><tt class="py-op">(</tt><tt class="py-name">common_type</tt><tt class="py-op">,</tt> <tt class="py-name">common_data</tt><tt class="py-op">)</tt> </tt>

    233. 

  233. <a name="L146"></a><tt class="py-lineno">146</tt>  <tt class="py-line">            
 </tt>
    234. 

  234. <a name="L147"></a><tt class="py-lineno">147</tt>  <tt class="py-line">
 </tt>
    235. 

  235. <a name="L148"></a><tt class="py-lineno">148</tt>  <tt class="py-line">            <tt class="py-comment"># Oh! Then it must be a midi event (channel voice message)</tt>
 </tt>
    236. 

  236. <a name="L149"></a><tt class="py-lineno">149</tt>  <tt class="py-line">            <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>

    237. 

  237. <a name="L150"></a><tt class="py-lineno">150</tt>  <tt class="py-line">                <tt class="py-name">data_sizes</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt>
 </tt>
    238. 

  238. <a name="L151"></a><tt class="py-lineno">151</tt>  <tt class="py-line">                    <tt id="link-38" class="py-name" targets="Variable echonest.support.midi.constants.PATCH_CHANGE=echonest.support.midi.constants-module.html#PATCH_CHANGE"><a title="echonest.support.midi.constants.PATCH_CHANGE" class="py-name" href="#" onclick="return doclink('link-38', 'PATCH_CHANGE', 'link-38');">PATCH_CHANGE</a></tt><tt class="py-op">:</tt><tt class="py-number">1</tt><tt class="py-op">,</tt>
 </tt>
    239. 

  239. <a name="L152"></a><tt class="py-lineno">152</tt>  <tt class="py-line">                    <tt id="link-39" class="py-name" targets="Variable echonest.support.midi.constants.CHANNEL_PRESSURE=echonest.support.midi.constants-module.html#CHANNEL_PRESSURE"><a title="echonest.support.midi.constants.CHANNEL_PRESSURE" class="py-name" href="#" onclick="return doclink('link-39', 'CHANNEL_PRESSURE', 'link-39');">CHANNEL_PRESSURE</a></tt><tt class="py-op">:</tt><tt class="py-number">1</tt><tt class="py-op">,</tt>
 </tt>
    240. 

  240. <a name="L153"></a><tt class="py-lineno">153</tt>  <tt class="py-line">                    <tt id="link-40" class="py-name" targets="Variable echonest.support.midi.constants.NOTE_OFF=echonest.support.midi.constants-module.html#NOTE_OFF"><a title="echonest.support.midi.constants.NOTE_OFF" class="py-name" href="#" onclick="return doclink('link-40', 'NOTE_OFF', 'link-40');">NOTE_OFF</a></tt><tt class="py-op">:</tt><tt class="py-number">2</tt><tt class="py-op">,</tt>
 </tt>
    241. 

  241. <a name="L154"></a><tt class="py-lineno">154</tt>  <tt class="py-line">                    <tt id="link-41" class="py-name" targets="Variable echonest.support.midi.constants.NOTE_ON=echonest.support.midi.constants-module.html#NOTE_ON"><a title="echonest.support.midi.constants.NOTE_ON" class="py-name" href="#" onclick="return doclink('link-41', 'NOTE_ON', 'link-41');">NOTE_ON</a></tt><tt class="py-op">:</tt><tt class="py-number">2</tt><tt class="py-op">,</tt>
 </tt>
    242. 

  242. <a name="L155"></a><tt class="py-lineno">155</tt>  <tt class="py-line">                    <tt id="link-42" class="py-name" targets="Variable echonest.support.midi.constants.AFTERTOUCH=echonest.support.midi.constants-module.html#AFTERTOUCH"><a title="echonest.support.midi.constants.AFTERTOUCH" class="py-name" href="#" onclick="return doclink('link-42', 'AFTERTOUCH', 'link-42');">AFTERTOUCH</a></tt><tt class="py-op">:</tt><tt class="py-number">2</tt><tt class="py-op">,</tt>
 </tt>
    243. 

  243. <a name="L156"></a><tt class="py-lineno">156</tt>  <tt class="py-line">                    <tt id="link-43" class="py-name" targets="Variable echonest.support.midi.constants.CONTINUOUS_CONTROLLER=echonest.support.midi.constants-module.html#CONTINUOUS_CONTROLLER"><a title="echonest.support.midi.constants.CONTINUOUS_CONTROLLER" class="py-name" href="#" onclick="return doclink('link-43', 'CONTINUOUS_CONTROLLER', 'link-43');">CONTINUOUS_CONTROLLER</a></tt><tt class="py-op">:</tt><tt class="py-number">2</tt><tt class="py-op">,</tt>
 </tt>
    244. 

  244. <a name="L157"></a><tt class="py-lineno">157</tt>  <tt class="py-line">                    <tt id="link-44" class="py-name" targets="Variable echonest.support.midi.constants.PITCH_BEND=echonest.support.midi.constants-module.html#PITCH_BEND"><a title="echonest.support.midi.constants.PITCH_BEND" class="py-name" href="#" onclick="return doclink('link-44', 'PITCH_BEND', 'link-44');">PITCH_BEND</a></tt><tt class="py-op">:</tt><tt class="py-number">2</tt><tt class="py-op">,</tt>
 </tt>
    245. 

  245. <a name="L158"></a><tt class="py-lineno">158</tt>  <tt class="py-line">                <tt class="py-op">}</tt> </tt>

    246. 

  246. <a name="L159"></a><tt class="py-lineno">159</tt>  <tt class="py-line">                <tt class="py-name">data_size</tt> <tt class="py-op">=</tt> <tt class="py-name">data_sizes</tt><tt class="py-op">.</tt><tt id="link-45" class="py-name"><a title="echonest.action.Edit.get" class="py-name" href="#" onclick="return doclink('link-45', 'get', 'link-36');">get</a></tt><tt class="py-op">(</tt><tt class="py-name">hi_nible</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt> </tt>

    247. 

  247. <a name="L160"></a><tt class="py-lineno">160</tt>  <tt class="py-line">                <tt class="py-name">channel_data</tt> <tt class="py-op">=</tt> <tt class="py-name">raw_in</tt><tt class="py-op">.</tt><tt id="link-46" class="py-name"><a title="echonest.support.midi.RawInstreamFile.RawInstreamFile.nextSlice" class="py-name" href="#" onclick="return doclink('link-46', 'nextSlice', 'link-4');">nextSlice</a></tt><tt class="py-op">(</tt><tt class="py-name">data_size</tt><tt class="py-op">)</tt> </tt>

    248. 

  248. <a name="L161"></a><tt class="py-lineno">161</tt>  <tt class="py-line">                <tt class="py-name">event_type</tt><tt class="py-op">,</tt> <tt class="py-name">channel</tt> <tt class="py-op">=</tt> <tt class="py-name">hi_nible</tt><tt class="py-op">,</tt> <tt class="py-name">lo_nible</tt> </tt>

    249. 

  249. <a name="L162"></a><tt class="py-lineno">162</tt>  <tt class="py-line">                <tt class="py-name">dispatch</tt><tt class="py-op">.</tt><tt id="link-47" class="py-name" targets="Method echonest.support.midi.EventDispatcher.EventDispatcher.channel_messages()=echonest.support.midi.EventDispatcher.EventDispatcher-class.html#channel_messages"><a title="echonest.support.midi.EventDispatcher.EventDispatcher.channel_messages" class="py-name" href="#" onclick="return doclink('link-47', 'channel_messages', 'link-47');">channel_messages</a></tt><tt class="py-op">(</tt><tt class="py-name">event_type</tt><tt class="py-op">,</tt> <tt class="py-name">channel</tt><tt class="py-op">,</tt> <tt class="py-name">channel_data</tt><tt class="py-op">)</tt> </tt>

    250. 

  250. </div><a name="L163"></a><tt class="py-lineno">163</tt>  <tt class="py-line">
 </tt>
    251. 

  251. <a name="L164"></a><tt class="py-lineno">164</tt>  <tt class="py-line">
 </tt>
    252. 

  252. <a name="MidiFileParser.parseMTrkChunks"></a><div id="MidiFileParser.parseMTrkChunks-def"><a name="L165"></a><tt class="py-lineno">165</tt> <a class="py-toggle" href="#" id="MidiFileParser.parseMTrkChunks-toggle" onclick="return toggle('MidiFileParser.parseMTrkChunks');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="echonest.support.midi.MidiFileParser.MidiFileParser-class.html#parseMTrkChunks">parseMTrkChunks</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>

    253. 

  253. </div><div id="MidiFileParser.parseMTrkChunks-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="MidiFileParser.parseMTrkChunks-expanded"><a name="L166"></a><tt class="py-lineno">166</tt>  <tt class="py-line">        <tt class="py-docstring">"Parses all track chunks."</tt> </tt>

    254. 

  254. <a name="L167"></a><tt class="py-lineno">167</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">t</tt> <tt class="py-keyword">in</tt> <tt class="py-name">range</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">nTracks</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>

    255. 

  255. <a name="L168"></a><tt class="py-lineno">168</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">_current_track</tt> <tt class="py-op">=</tt> <tt class="py-name">t</tt> </tt>

    256. 

  256. <a name="L169"></a><tt class="py-lineno">169</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-48" class="py-name" targets="Method echonest.support.midi.MidiFileParser.MidiFileParser.parseMTrkChunk()=echonest.support.midi.MidiFileParser.MidiFileParser-class.html#parseMTrkChunk"><a title="echonest.support.midi.MidiFileParser.MidiFileParser.parseMTrkChunk" class="py-name" href="#" onclick="return doclink('link-48', 'parseMTrkChunk', 'link-48');">parseMTrkChunk</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> <tt class="py-comment"># this is where it's at!</tt> </tt>

    257. 

  257. <a name="L170"></a><tt class="py-lineno">170</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dispatch</tt><tt class="py-op">.</tt><tt id="link-49" class="py-name" targets="Method echonest.support.midi.EventDispatcher.EventDispatcher.eof()=echonest.support.midi.EventDispatcher.EventDispatcher-class.html#eof,Method echonest.support.midi.MidiOutFile.MidiOutFile.eof()=echonest.support.midi.MidiOutFile.MidiOutFile-class.html#eof,Method echonest.support.midi.MidiOutStream.MidiOutStream.eof()=echonest.support.midi.MidiOutStream.MidiOutStream-class.html#eof,Method echonest.support.midi.MidiToText.MidiToText.eof()=echonest.support.midi.MidiToText.MidiToText-class.html#eof"><a title="echonest.support.midi.EventDispatcher.EventDispatcher.eof
    258. 

  258. echonest.support.midi.MidiOutFile.MidiOutFile.eof
    259. 

  259. echonest.support.midi.MidiOutStream.MidiOutStream.eof
    260. 

  260. echonest.support.midi.MidiToText.MidiToText.eof" class="py-name" href="#" onclick="return doclink('link-49', 'eof', 'link-49');">eof</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>

    261. 

  261. </div></div><a name="L171"></a><tt class="py-lineno">171</tt>  <tt class="py-line">
 </tt>
    262. 

  262. <a name="L172"></a><tt class="py-lineno">172</tt>  <tt class="py-line">
 </tt>
    263. 

  263. <a name="L173"></a><tt class="py-lineno">173</tt>  <tt class="py-line">
 </tt>
    264. 

  264. <a name="L174"></a><tt class="py-lineno">174</tt>  <tt class="py-line"><tt class="py-keyword">if</tt> <tt class="py-name">__name__</tt> <tt class="py-op">==</tt> <tt class="py-string">'__main__'</tt><tt class="py-op">:</tt> </tt>

    265. 

  265. <a name="L175"></a><tt class="py-lineno">175</tt>  <tt class="py-line">
 </tt>
    266. 

  266. <a name="L176"></a><tt class="py-lineno">176</tt>  <tt class="py-line">    <tt class="py-comment"># get data</tt>
 </tt>
    267. 

  267. <a name="L177"></a><tt class="py-lineno">177</tt>  <tt class="py-line">    <tt id="link-50" class="py-name" targets="Variable echonest.support.midi.example_print_file.test_file=echonest.support.midi.example_print_file-module.html#test_file"><a title="echonest.support.midi.example_print_file.test_file" class="py-name" href="#" onclick="return doclink('link-50', 'test_file', 'link-50');">test_file</a></tt> <tt class="py-op">=</tt> <tt class="py-string">'test/midifiles/minimal.mid'</tt> </tt>

    268. 

  268. <a name="L178"></a><tt class="py-lineno">178</tt>  <tt class="py-line">    <tt id="link-51" class="py-name"><a title="echonest.support.midi.example_print_file.test_file" class="py-name" href="#" onclick="return doclink('link-51', 'test_file', 'link-50');">test_file</a></tt> <tt class="py-op">=</tt> <tt class="py-string">'test/midifiles/cubase-minimal.mid'</tt> </tt>

    269. 

  269. <a name="L179"></a><tt class="py-lineno">179</tt>  <tt class="py-line">    <tt id="link-52" class="py-name"><a title="echonest.support.midi.example_print_file.test_file" class="py-name" href="#" onclick="return doclink('link-52', 'test_file', 'link-50');">test_file</a></tt> <tt class="py-op">=</tt> <tt class="py-string">'test/midifiles/Lola.mid'</tt> </tt>

    270. 

  270. <a name="L180"></a><tt class="py-lineno">180</tt>  <tt class="py-line"><tt class="py-comment">#    f = open(test_file, 'rb')</tt>
 </tt>
    271. 

  271. <a name="L181"></a><tt class="py-lineno">181</tt>  <tt class="py-line"><tt class="py-comment">#    raw_data = f.read()</tt>
 </tt>
    272. 

  272. <a name="L182"></a><tt class="py-lineno">182</tt>  <tt class="py-line"><tt class="py-comment">#    f.close()</tt>
 </tt>
    273. 

  273. <a name="L183"></a><tt class="py-lineno">183</tt>  <tt class="py-line"><tt class="py-comment">#    </tt>
 </tt>
    274. 

  274. <a name="L184"></a><tt class="py-lineno">184</tt>  <tt class="py-line"><tt class="py-comment">#    </tt>
 </tt>
    275. 

  275. <a name="L185"></a><tt class="py-lineno">185</tt>  <tt class="py-line"><tt class="py-comment">#    # do parsing</tt>
 </tt>
    276. 

  276. <a name="L186"></a><tt class="py-lineno">186</tt>  <tt class="py-line">    <tt class="py-keyword">from</tt> <tt id="link-53" class="py-name" targets="Module echonest.support.midi.MidiToText=echonest.support.midi.MidiToText-module.html,Class echonest.support.midi.MidiToText.MidiToText=echonest.support.midi.MidiToText.MidiToText-class.html"><a title="echonest.support.midi.MidiToText
    277. 

  277. echonest.support.midi.MidiToText.MidiToText" class="py-name" href="#" onclick="return doclink('link-53', 'MidiToText', 'link-53');">MidiToText</a></tt> <tt class="py-keyword">import</tt> <tt id="link-54" class="py-name"><a title="echonest.support.midi.MidiToText
    278. 

  278. echonest.support.midi.MidiToText.MidiToText" class="py-name" href="#" onclick="return doclink('link-54', 'MidiToText', 'link-53');">MidiToText</a></tt> </tt>

    279. 

  279. <a name="L187"></a><tt class="py-lineno">187</tt>  <tt class="py-line">    <tt class="py-keyword">from</tt> <tt id="link-55" class="py-name" targets="Module echonest.support.midi.RawInstreamFile=echonest.support.midi.RawInstreamFile-module.html,Class echonest.support.midi.RawInstreamFile.RawInstreamFile=echonest.support.midi.RawInstreamFile.RawInstreamFile-class.html"><a title="echonest.support.midi.RawInstreamFile
    280. 

  280. echonest.support.midi.RawInstreamFile.RawInstreamFile" class="py-name" href="#" onclick="return doclink('link-55', 'RawInstreamFile', 'link-55');">RawInstreamFile</a></tt> <tt class="py-keyword">import</tt> <tt id="link-56" class="py-name"><a title="echonest.support.midi.RawInstreamFile
    281. 

  281. echonest.support.midi.RawInstreamFile.RawInstreamFile" class="py-name" href="#" onclick="return doclink('link-56', 'RawInstreamFile', 'link-55');">RawInstreamFile</a></tt> </tt>

    282. 

  282. <a name="L188"></a><tt class="py-lineno">188</tt>  <tt class="py-line">
 </tt>
    283. 

  283. <a name="L189"></a><tt class="py-lineno">189</tt>  <tt class="py-line">    <tt id="link-57" class="py-name" targets="Variable echonest.support.midi.example_print_channel_0.midi_in=echonest.support.midi.example_print_channel_0-module.html#midi_in,Variable echonest.support.midi.example_transpose_octave.midi_in=echonest.support.midi.example_transpose_octave-module.html#midi_in"><a title="echonest.support.midi.example_print_channel_0.midi_in
    284. 

  284. echonest.support.midi.example_transpose_octave.midi_in" class="py-name" href="#" onclick="return doclink('link-57', 'midi_in', 'link-57');">midi_in</a></tt> <tt class="py-op">=</tt> <tt id="link-58" class="py-name" targets="Module echonest.support.midi.MidiFileParser=echonest.support.midi.MidiFileParser-module.html,Class echonest.support.midi.MidiFileParser.MidiFileParser=echonest.support.midi.MidiFileParser.MidiFileParser-class.html"><a title="echonest.support.midi.MidiFileParser
    285. 

  285. echonest.support.midi.MidiFileParser.MidiFileParser" class="py-name" href="#" onclick="return doclink('link-58', 'MidiFileParser', 'link-58');">MidiFileParser</a></tt><tt class="py-op">(</tt><tt id="link-59" class="py-name"><a title="echonest.support.midi.RawInstreamFile
    286. 

  286. echonest.support.midi.RawInstreamFile.RawInstreamFile" class="py-name" href="#" onclick="return doclink('link-59', 'RawInstreamFile', 'link-55');">RawInstreamFile</a></tt><tt class="py-op">(</tt><tt id="link-60" class="py-name"><a title="echonest.support.midi.example_print_file.test_file" class="py-name" href="#" onclick="return doclink('link-60', 'test_file', 'link-50');">test_file</a></tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt id="link-61" class="py-name"><a title="echonest.support.midi.MidiToText
    287. 

  287. echonest.support.midi.MidiToText.MidiToText" class="py-name" href="#" onclick="return doclink('link-61', 'MidiToText', 'link-53');">MidiToText</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>

    288. 

  288. <a name="L190"></a><tt class="py-lineno">190</tt>  <tt class="py-line">    <tt id="link-62" class="py-name"><a title="echonest.support.midi.example_print_channel_0.midi_in
    289. 

  289. echonest.support.midi.example_transpose_octave.midi_in" class="py-name" href="#" onclick="return doclink('link-62', 'midi_in', 'link-57');">midi_in</a></tt><tt class="py-op">.</tt><tt id="link-63" class="py-name" targets="Method echonest.support.midi.MidiFileParser.MidiFileParser.parseMThdChunk()=echonest.support.midi.MidiFileParser.MidiFileParser-class.html#parseMThdChunk"><a title="echonest.support.midi.MidiFileParser.MidiFileParser.parseMThdChunk" class="py-name" href="#" onclick="return doclink('link-63', 'parseMThdChunk', 'link-63');">parseMThdChunk</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>

    290. 

  290. <a name="L191"></a><tt class="py-lineno">191</tt>  <tt class="py-line">    <tt id="link-64" class="py-name"><a title="echonest.support.midi.example_print_channel_0.midi_in
    291. 

  291. echonest.support.midi.example_transpose_octave.midi_in" class="py-name" href="#" onclick="return doclink('link-64', 'midi_in', 'link-57');">midi_in</a></tt><tt class="py-op">.</tt><tt id="link-65" class="py-name" targets="Method echonest.support.midi.MidiFileParser.MidiFileParser.parseMTrkChunks()=echonest.support.midi.MidiFileParser.MidiFileParser-class.html#parseMTrkChunks"><a title="echonest.support.midi.MidiFileParser.MidiFileParser.parseMTrkChunks" class="py-name" href="#" onclick="return doclink('link-65', 'parseMTrkChunks', 'link-65');">parseMTrkChunks</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
    292. 

  292. <a name="L192"></a><tt class="py-lineno">192</tt>  <tt class="py-line"> </tt><script type="text/javascript">
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