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von raredesign | Dez 3, 2019 | Allgemein | 0 Kommentare
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<a href="Audio_8cxx.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * UNIVERSITAT POMPEU FABRA</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * This program is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * the Free Software Foundation; either version 2 of the License, or</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * (at your option) any later version.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * GNU General Public License for more details.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * You should have received a copy of the GNU General Public License</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * along with this program; if not, write to the Free Software</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "<a class="code" href="Audio_8hxx.html">Audio.hxx</a>"</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "<a class="code" href="CLAM__Math_8hxx.html">CLAM_Math.hxx</a>"</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "<a class="code" href="ProcessingDataPlugin_8hxx.html">ProcessingDataPlugin.hxx</a>"</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">using namespace </span>CLAM;</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">namespace </span>CLAM</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> {</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keyword">namespace </span>Hidden</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  {</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">static</span> <a class="code" href="classCLAM_1_1ProcessingDataPlugin_1_1Registrator.html">ProcessingDataPlugin::Registrator<CLAM::Audio></a> <a class="code" href="namespaceCLAM_1_1Hidden.html#af061905887c974e88bb0704d740b62d7">dataRegistratorAudio</a>(<span class="stringliteral">"lightcyan"</span>,<span class="stringliteral">"CLAM::Audio (Buffer)"</span>);</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  }</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> }</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a name="l00036"></a><span class="lineno"><a class="code" href="classCLAM_1_1Audio.html#ae8f54deecb5f48511aaab469e80294d6"> 36</a></span> <a class="code" href="classCLAM_1_1Audio.html#ae8f54deecb5f48511aaab469e80294d6">Audio::~Audio</a>()</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> {</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> }</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
<div class="line"><a name="l00040"></a><span class="lineno"><a class="code" href="classCLAM_1_1Audio.html#a02da13d6d9e18c758b62e33c16ce975b"> 40</a></span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1Audio.html#a02da13d6d9e18c758b62e33c16ce975b" title="The concrete dynamic type constructor calls DefaultInit().">Audio::DefaultInit</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> {</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="comment">// Attribute instantiation.</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  AddSampleRate();</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  AddBeginTime();</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  AddBuffer();</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="classCLAM_1_1DynamicType.html#a74d1557beda060a62f39b09f0c477fad" title="Method used to resize the data space of the dynamic type, necessary when some AddXXX() / RemoveXXX() ...">UpdateData</a>();</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="comment">// Attribute initialization (Default values).</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  SetSampleRate(44100);</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  SetBeginTime(0);<span class="comment">//By default, audio starts at 0</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> }</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a name="l00053"></a><span class="lineno"><a class="code" href="classCLAM_1_1Audio.html#a4848aaac2a50e499722661254ee0c64f"> 53</a></span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1Audio.html#a4848aaac2a50e499722661254ee0c64f">Audio::SetEndTime</a>(<a class="code" href="namespaceCLAM.html#aba1a20c1581f88d249cfcbcfd8a377c5">TTime</a> time)</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> {</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <a class="code" href="Assert_8hxx.html#adcb270c005eb2d28c1210743e9431c53">CLAM_WARNING</a>(<span class="keyword">false</span>, <span class="stringliteral">"Audio::SetEndTime is about to be deprecated. Please use Audio::ResizeToEndTime instead"</span>);</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="code" href="classCLAM_1_1Audio.html#abe60908ab8d8131f1d1fa1b58c562f2f" title="Resizes the array buffer to last from the begin time until the specified time position (time in milis...">ResizeToEndTime</a>(time);</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> }</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a name="l00059"></a><span class="lineno"><a class="code" href="classCLAM_1_1Audio.html#abe60908ab8d8131f1d1fa1b58c562f2f"> 59</a></span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1Audio.html#abe60908ab8d8131f1d1fa1b58c562f2f" title="Resizes the array buffer to last from the begin time until the specified time position (time in milis...">Audio::ResizeToEndTime</a>(<a class="code" href="namespaceCLAM.html#aba1a20c1581f88d249cfcbcfd8a377c5">TTime</a> time)</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> {</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> newsizeRound = <a class="code" href="FastRounding_8hxx.html#aa6ef4a5769f2876d924eb589b69e0735">Round</a>((time-GetBeginTime())/1000.0*GetSampleRate());</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="classCLAM_1_1Audio.html#a6491bc3e8ca150157175978f8609b10d" title="Resizes the array buffers to a size in samples.">SetSize</a>(newsizeRound);</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> }</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="code" href="classCLAM_1_1Audio.html#a6491bc3e8ca150157175978f8609b10d"> 65</a></span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1Audio.html#a6491bc3e8ca150157175978f8609b10d" title="Resizes the array buffers to a size in samples.">Audio::SetSize</a>(<span class="keywordtype">int</span> newSize)</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> {</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(HasBuffer(), <span class="stringliteral">"Audio::SetSize(int) needs a buffer (HasBuffer()==1)"</span>);</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(newSize>=0,<span class="stringliteral">"Audio::SetSize(): Negative size specified"</span>);</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">int</span> oldSize=<a class="code" href="classCLAM_1_1Audio.html#a2daa98010a19ef4f35a94bc3e0deab5f">GetSize</a>();</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">if</span> (newSize==oldSize) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">int</span> physicalSize = GetBuffer().AllocatedSize();</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">if</span> (newSize>physicalSize)</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  GetBuffer().Resize(newSize);</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  GetBuffer().SetSize(newSize);</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">if</span>(newSize<=oldSize) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  memset(GetBuffer().GetPtr()+oldSize,0,(newSize-oldSize)*<span class="keyword">sizeof</span>(<a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a>));</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> }</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a name="l00079"></a><span class="lineno"><a class="code" href="classCLAM_1_1Audio.html#a0df1f59a1e917354775d0cd80282e0fe"> 79</a></span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1Audio.html#a0df1f59a1e917354775d0cd80282e0fe">Audio::SetDuration</a>(<a class="code" href="namespaceCLAM.html#aba1a20c1581f88d249cfcbcfd8a377c5">TTime</a> duration)</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> {</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <a class="code" href="Assert_8hxx.html#adcb270c005eb2d28c1210743e9431c53">CLAM_WARNING</a>(<span class="keyword">false</span>, <span class="stringliteral">"Audio::SetDuration is about to be deprecated. Please use Audio::ResizeToDuration instead"</span>);</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <a class="code" href="classCLAM_1_1Audio.html#a1f77396c70090eeb165868a26308a628" title="Resizes the array buffer to last the specified time duration (miliseconds).">ResizeToDuration</a>(GetIndexFromTime(duration));</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> }</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
<div class="line"><a name="l00085"></a><span class="lineno"><a class="code" href="classCLAM_1_1Audio.html#a1f77396c70090eeb165868a26308a628"> 85</a></span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1Audio.html#a1f77396c70090eeb165868a26308a628" title="Resizes the array buffer to last the specified time duration (miliseconds).">Audio::ResizeToDuration</a>(<a class="code" href="namespaceCLAM.html#aba1a20c1581f88d249cfcbcfd8a377c5">TTime</a> duration)</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> {</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <a class="code" href="classCLAM_1_1Audio.html#a6491bc3e8ca150157175978f8609b10d" title="Resizes the array buffers to a size in samples.">SetSize</a>(GetIndexFromTime(duration));</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> }</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <a class="code" href="namespaceCLAM.html#aba1a20c1581f88d249cfcbcfd8a377c5">TTime</a> Audio::GetTimeFromIndex(<a class="code" href="classint.html">TIndex</a> index)<span class="keyword"> const</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="keyword"></span>{</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">return</span> (<a class="code" href="namespaceCLAM.html#aba1a20c1581f88d249cfcbcfd8a377c5">TTime</a>)((<a class="code" href="namespaceCLAM.html#aba1a20c1581f88d249cfcbcfd8a377c5">TTime</a>)index / GetSampleRate()*1000.0 );</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> }</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <a class="code" href="namespaceCLAM.html#af934e7dd545c1aed1cd0fd551c135122">TIndex</a> Audio::GetIndexFromTime(<a class="code" href="namespaceCLAM.html#aba1a20c1581f88d249cfcbcfd8a377c5">TTime</a> time)<span class="keyword"> const</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="keyword"></span>{</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">return</span> <a class="code" href="FastRounding_8hxx.html#aa6ef4a5769f2876d924eb589b69e0735">Round</a>(time*((<a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a>)GetSampleRate()/1000.0));</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> }</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
<div class="line"><a name="l00100"></a><span class="lineno"><a class="code" href="classCLAM_1_1Audio.html#a8c6e39bf60e51457b007c0b6dc0dbba0"> 100</a></span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1Audio.html#a8c6e39bf60e51457b007c0b6dc0dbba0" title="Method for copying an audio chunk out of the existing data.">Audio::GetAudioChunk</a>(<a class="code" href="namespaceCLAM.html#aba1a20c1581f88d249cfcbcfd8a377c5">TTime</a> beginTime, <a class="code" href="namespaceCLAM.html#aba1a20c1581f88d249cfcbcfd8a377c5">TTime</a> endTime,<a class="code" href="classCLAM_1_1Audio.html" title="Audio class with the Data Buffer, information about it (SampleRate, BeginTime), and methods to insert...">Audio</a>& chunk, <span class="keywordtype">bool</span> configureChunk)<span class="keyword"> const</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="keyword"></span>{</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <a class="code" href="classCLAM_1_1Audio.html#a8c6e39bf60e51457b007c0b6dc0dbba0" title="Method for copying an audio chunk out of the existing data.">GetAudioChunk</a>(GetIndexFromTime(beginTime),GetIndexFromTime(endTime),chunk, configureChunk);</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> }</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a name="l00105"></a><span class="lineno"><a class="code" href="classCLAM_1_1Audio.html#ae75b0862429619cc275c700a92db9c11"> 105</a></span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1Audio.html#ae75b0862429619cc275c700a92db9c11" title="Method for copying an audio "slice" out of the existing data.">Audio::GetAudioSlice</a>(<a class="code" href="namespaceCLAM.html#aba1a20c1581f88d249cfcbcfd8a377c5">TTime</a> beginTime, <a class="code" href="namespaceCLAM.html#aba1a20c1581f88d249cfcbcfd8a377c5">TTime</a> endTime,<a class="code" href="classCLAM_1_1Audio.html" title="Audio class with the Data Buffer, information about it (SampleRate, BeginTime), and methods to insert...">Audio</a>& slice, <span class="keywordtype">bool</span> configureSlice)<span class="keyword"> const</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="keyword"></span>{</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <a class="code" href="classCLAM_1_1Audio.html#ae75b0862429619cc275c700a92db9c11" title="Method for copying an audio "slice" out of the existing data.">GetAudioSlice</a>(GetIndexFromTime(beginTime),GetIndexFromTime(endTime),slice, configureSlice);</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> }</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div>
<div class="line"><a name="l00112"></a><span class="lineno"><a class="code" href="classCLAM_1_1Audio.html#ae3a3d70987ed1b44e60c17165c596217"> 112</a></span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1Audio.html#ae75b0862429619cc275c700a92db9c11" title="Method for copying an audio "slice" out of the existing data.">Audio::GetAudioSlice</a>( <a class="code" href="classint.html">TIndex</a> beginIndex, <a class="code" href="classint.html">TIndex</a> endIndex, <a class="code" href="classCLAM_1_1Audio.html" title="Audio class with the Data Buffer, information about it (SampleRate, BeginTime), and methods to insert...">Audio</a>& slice, <span class="keywordtype">bool</span> configureChunk )<span class="keyword"> const</span></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="keyword"></span>{</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>( beginIndex >=0, <span class="stringliteral">"Negative indexes are not allowed for audio slices"</span> );</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>( endIndex <= <a class="code" href="classCLAM_1_1Audio.html#a2daa98010a19ef4f35a94bc3e0deab5f">GetSize</a>(), <span class="stringliteral">"Slices are not allowed to surpass audio size"</span> );</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="classint.html">TIndex</a> size=endIndex-beginIndex;</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <a class="code" href="classCLAM_1_1Array.html">DataArray</a> tmpArray;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  tmpArray.<a class="code" href="classCLAM_1_1Array.html#af115ce43636d6404d4ff73aa0c7a2787">SetPtr</a>( GetBuffer().GetPtr() + beginIndex );</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  tmpArray.<a class="code" href="classCLAM_1_1Array.html#a6abe700dc818ed27bf14d9cbf69c5738">SetSize</a>( size );</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  slice.SetBuffer( tmpArray );</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">if</span>(configureChunk)</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  {</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  slice.SetBeginTime(GetTimeFromIndex(beginIndex));</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  slice.SetSampleRate( GetSampleRate() );</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  slice.GetBuffer().<a class="code" href="classCLAM_1_1Audio.html#a6491bc3e8ca150157175978f8609b10d" title="Resizes the array buffers to a size in samples.">SetSize</a>(size);</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  }</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(HasBuffer(),<span class="stringliteral">"Audio::GetAudioChunk: Buffer not initialized"</span>);</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  </div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> }</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a name="l00135"></a><span class="lineno"><a class="code" href="classCLAM_1_1Audio.html#acdf0dcedb5ad63f9e8db07ab1d1e1e5b"> 135</a></span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1Audio.html#a8c6e39bf60e51457b007c0b6dc0dbba0" title="Method for copying an audio chunk out of the existing data.">Audio::GetAudioChunk</a>(<a class="code" href="classint.html">TIndex</a> beginIndex,<a class="code" href="classint.html">TIndex</a> endIndex,<a class="code" href="classCLAM_1_1Audio.html" title="Audio class with the Data Buffer, information about it (SampleRate, BeginTime), and methods to insert...">Audio</a>& chunk, <span class="keywordtype">bool</span> configureChunk)<span class="keyword"> const</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="keyword"></span>{</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  </div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">/*Note that begin index is allowed to be less than zero and the end index to be beyond the end*/</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(endIndex>beginIndex,</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="stringliteral">"Audio::GetAudioChunk: Incorrect index boundaries for audio chunk"</span>);</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <a class="code" href="classint.html">TSize</a> nBytesToCopy,offset=0;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  </div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">if</span>(beginIndex>=<a class="code" href="classCLAM_1_1Audio.html#a2daa98010a19ef4f35a94bc3e0deab5f">GetSize</a>()){</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <a class="code" href="classint.html">TIndex</a> size=endIndex-beginIndex;</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">if</span>(configureChunk) chunk.<a class="code" href="classCLAM_1_1Audio.html#a6491bc3e8ca150157175978f8609b10d" title="Resizes the array buffers to a size in samples.">SetSize</a>(size);</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="comment">//make sure that 0's are set in non written part of audio</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  memset(chunk.GetBuffer().GetPtr(),0,size*<span class="keyword">sizeof</span>(<a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a>));</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  }</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  </div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  chunk.SetBeginTime(GetTimeFromIndex(beginIndex));</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">if</span>(configureChunk)</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  {</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  chunk.SetSampleRate( GetSampleRate() );</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <a class="code" href="classint.html">TIndex</a> size=endIndex-beginIndex;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  chunk.<a class="code" href="classCLAM_1_1Audio.html#a6491bc3e8ca150157175978f8609b10d" title="Resizes the array buffers to a size in samples.">SetSize</a>(size);</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  chunk.SetSampleRate( GetSampleRate() );</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  chunk.SetBeginTime( GetTimeFromIndex(beginIndex) );</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  }</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  </div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  </div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(HasBuffer(),<span class="stringliteral">"Audio::GetAudioChunk: Buffer not initialized"</span>);</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  </div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="comment">/*Whenever trying to copy samples before the beginning or after end of </span></div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="comment"> actual audio, zeros will be added at the beginning or end of chunk*/</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">if</span>(beginIndex<0)</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  {</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  offset=-beginIndex;</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  beginIndex=0;</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="comment">//make sure that 0's are set in non written part of audio</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  memset(chunk.GetBuffer().GetPtr(),0,offset*<span class="keyword">sizeof</span>(<a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a>));</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  }</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">if</span>(endIndex>=<a class="code" href="classCLAM_1_1Audio.html#a2daa98010a19ef4f35a94bc3e0deab5f">GetSize</a>())</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  { </div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <a class="code" href="classint.html">TSize</a> ending=endIndex-<a class="code" href="classCLAM_1_1Audio.html#a2daa98010a19ef4f35a94bc3e0deab5f">GetSize</a>();</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  memset(chunk.GetBuffer().GetPtr()+<a class="code" href="classCLAM_1_1Audio.html#a2daa98010a19ef4f35a94bc3e0deab5f">GetSize</a>()-beginIndex ,0,ending*<span class="keyword">sizeof</span>(<a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a>));</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  endIndex=<a class="code" href="classCLAM_1_1Audio.html#a2daa98010a19ef4f35a94bc3e0deab5f">GetSize</a>();</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  }</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  nBytesToCopy=(endIndex-beginIndex)*<span class="keyword">sizeof</span>(<a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a>);</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  </div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  nBytesToCopy>=0</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  && beginIndex>=0</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  && <span class="keywordtype">int</span>(nBytesToCopy+beginIndex*<span class="keyword">sizeof</span>(<a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a>))<=GetBuffer().SizeInBytes(),</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="stringliteral">"Error"</span>);</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> </div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  memcpy(chunk.GetBuffer().GetPtr()+offset,GetBuffer().GetPtr()+beginIndex,nBytesToCopy);</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> }</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div>
<div class="line"><a name="l00194"></a><span class="lineno"><a class="code" href="classCLAM_1_1Audio.html#ab60d76f311d58f6d3b2c2a8c945c2e7a"> 194</a></span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1Audio.html#ab60d76f311d58f6d3b2c2a8c945c2e7a" title="Method for setting an audio chunk of the audio out of an existing chunk.">Audio::SetAudioChunk</a>(<a class="code" href="namespaceCLAM.html#aba1a20c1581f88d249cfcbcfd8a377c5">TTime</a> beginTime,<span class="keyword">const</span> <a class="code" href="classCLAM_1_1Audio.html" title="Audio class with the Data Buffer, information about it (SampleRate, BeginTime), and methods to insert...">Audio</a>& chunk)</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> {</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <a class="code" href="classCLAM_1_1Audio.html#ab60d76f311d58f6d3b2c2a8c945c2e7a" title="Method for setting an audio chunk of the audio out of an existing chunk.">SetAudioChunk</a>(GetIndexFromTime(beginTime),chunk);</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> }</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div>
<div class="line"><a name="l00199"></a><span class="lineno"><a class="code" href="classCLAM_1_1Audio.html#a183fc76bc026081a069e9c215331d9c6"> 199</a></span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1Audio.html#ab60d76f311d58f6d3b2c2a8c945c2e7a" title="Method for setting an audio chunk of the audio out of an existing chunk.">Audio::SetAudioChunk</a>(<a class="code" href="classint.html">TIndex</a> beginIndex,<span class="keyword">const</span> <a class="code" href="classCLAM_1_1Audio.html" title="Audio class with the Data Buffer, information about it (SampleRate, BeginTime), and methods to insert...">Audio</a>& chunk)</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> {</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(beginIndex<<a class="code" href="classCLAM_1_1Audio.html#a2daa98010a19ef4f35a94bc3e0deab5f">GetSize</a>(),<span class="stringliteral">"Audio::SetAudioChunk: Incorrect begin index"</span>);</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <a class="code" href="classint.html">TSize</a> nBytesToCopy,offset=0;</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <a class="code" href="classint.html">TIndex</a> endIndex=beginIndex+chunk.<a class="code" href="classCLAM_1_1Audio.html#a2daa98010a19ef4f35a94bc3e0deab5f">GetSize</a>();</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordflow">if</span>(endIndex><a class="code" href="classCLAM_1_1Audio.html#a2daa98010a19ef4f35a94bc3e0deab5f">GetSize</a>()) endIndex=<a class="code" href="classCLAM_1_1Audio.html#a2daa98010a19ef4f35a94bc3e0deab5f">GetSize</a>();</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">if</span>(beginIndex<0){ </div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  offset=-beginIndex;</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  beginIndex=0;}</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  </div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <a class="code" href="Assert_8hxx.html#a0013fa617be6fec21a9ad7180e7d8cff" title="An assertion is a check on an expression that must be true given that all the contracts are fullfille...">CLAM_ASSERT</a>(chunk.HasBuffer()&&HasBuffer(),<span class="stringliteral">"Audio::SetAudioChunk: one of the buffers is not initialized"</span>) ;</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  nBytesToCopy=(endIndex-beginIndex)*<span class="keyword">sizeof</span>(<a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a>);</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  memcpy(GetBuffer().GetPtr()+beginIndex,chunk.GetBuffer().GetPtr()+offset,nBytesToCopy);</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> }</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> </div>
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