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  82. <div class="title">wavesound.h</div> </div>
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  84. <div class="contents">
  85. <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="preprocessor">#ifndef WAVESOUND_H</span></div>
  86. <div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="preprocessor">#define WAVESOUND_H</span></div>
  87. <div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;</div>
  88. <div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="preprocessor">#include &lt;QtMultimedia/QAudioBuffer&gt;</span></div>
  89. <div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="preprocessor">#include &lt;QtMultimedia/QAudioFormat&gt;</span></div>
  90. <div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="preprocessor">#include &lt;QFile&gt;</span></div>
  91. <div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#include &lt;iostream&gt;</span></div>
  92. <div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#include &lt;QByteArray&gt;</span></div>
  93. <div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;</div>
  94. <div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a> ;</div>
  95. <div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;</div>
  96. <div class="line"><a name="l00012"></a><span class="lineno"><a class="line" href="class_wave_sound.html"> 12</a></span>&#160;<span class="keyword">class </span><a class="code" href="class_wave_sound.html">WaveSound</a></div>
  97. <div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;{</div>
  98. <div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160; <span class="keyword">private</span>:</div>
  99. <div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160; QByteArray header;</div>
  100. <div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160; QAudioFormat format;</div>
  101. <div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160; QByteArray wavBuffer;</div>
  102. <div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160; QAudioBuffer *qab;</div>
  103. <div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;</div>
  104. <div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160; <span class="keyword">public</span>:</div>
  105. <div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;</div>
  106. <div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; <a class="code" href="class_wave_sound.html">WaveSound</a>()</div>
  107. <div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; {</div>
  108. <div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; qab = NULL ;</div>
  109. <div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; format.setSampleSize(16);</div>
  110. <div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; format.setSampleRate(44100);</div>
  111. <div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; format.setChannelCount(2);</div>
  112. <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; format.setCodec(<span class="stringliteral">&quot;audio/pcm&quot;</span>);</div>
  113. <div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; format.setByteOrder(QAudioFormat::LittleEndian);</div>
  114. <div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; format.setSampleType(QAudioFormat::SignedInt);</div>
  115. <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; }</div>
  116. <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;</div>
  117. <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; QAudioBuffer::S16S * getAudioSamples(QString filename)</div>
  118. <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; {</div>
  119. <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; QFile inputFile;</div>
  120. <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;</div>
  121. <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; inputFile.setFileName(filename);</div>
  122. <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; inputFile.open(QIODevice::ReadOnly);</div>
  123. <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; header = inputFile.read(44) ; <span class="comment">// Wav header file is normally 44 bytes</span></div>
  124. <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;</div>
  125. <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; wavBuffer = inputFile.readAll();</div>
  126. <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; inputFile.close();</div>
  127. <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;</div>
  128. <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="keywordflow">if</span>(qab != NULL){</div>
  129. <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="keyword">delete</span> qab ;</div>
  130. <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; }</div>
  131. <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; qab = <span class="keyword">new</span> QAudioBuffer(wavBuffer, format);</div>
  132. <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;</div>
  133. <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="keywordflow">return</span> qab-&gt;data&lt;QAudioBuffer::S16S&gt;();</div>
  134. <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; }</div>
  135. <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;</div>
  136. <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keywordtype">void</span> writeNewAudioFile(QString filename)</div>
  137. <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; {</div>
  138. <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; QByteArray outBuffer;</div>
  139. <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; QFile outputFile;</div>
  140. <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;</div>
  141. <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; outputFile.setFileName(filename);</div>
  142. <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; outputFile.open(QIODevice::WriteOnly);</div>
  143. <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; outBuffer.setRawData((<span class="keywordtype">char</span> *) qab-&gt;data(), qab-&gt;byteCount() );</div>
  144. <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;</div>
  145. <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; outputFile.write(header);</div>
  146. <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; outputFile.write(outBuffer);</div>
  147. <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; outputFile.close();</div>
  148. <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; }</div>
  149. <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;</div>
  150. <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <span class="keywordtype">int</span> frameCount()</div>
  151. <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; {</div>
  152. <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="keywordflow">return</span> qab-&gt;frameCount();</div>
  153. <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; }</div>
  154. <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;</div>
  155. <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;</div>
  156. <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; ~<a class="code" href="class_wave_sound.html">WaveSound</a>(){</div>
  157. <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <span class="keywordflow">if</span>(qab != NULL){</div>
  158. <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <span class="keyword">delete</span> qab ;</div>
  159. <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; qab = NULL;</div>
  160. <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; }</div>
  161. <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; }</div>
  162. <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;</div>
  163. <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;};</div>
  164. <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160;<span class="preprocessor">#endif // WAVESOUND_H</span></div>
  165. <div class="ttc" id="namespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div></div>
  166. <div class="ttc" id="class_wave_sound_html"><div class="ttname"><a href="class_wave_sound.html">WaveSound</a></div><div class="ttdef"><b>Definition:</b> wavesound.h:12</div></div>
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