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<h1>PluginChannelAdapter.cpp</h1><a href="PluginChannelAdapter_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */</span>
<a name="l00002"></a>00002 
<a name="l00003"></a>00003 <span class="comment">/*</span>
<a name="l00004"></a>00004 <span class="comment">    Vamp</span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment">    An API for audio analysis and feature extraction plugins.</span>
<a name="l00007"></a>00007 <span class="comment"></span>
<a name="l00008"></a>00008 <span class="comment">    Centre for Digital Music, Queen Mary, University of London.</span>
<a name="l00009"></a>00009 <span class="comment">    Copyright 2006-2007 Chris Cannam and QMUL.</span>
<a name="l00010"></a>00010 <span class="comment">  </span>
<a name="l00011"></a>00011 <span class="comment">    Permission is hereby granted, free of charge, to any person</span>
<a name="l00012"></a>00012 <span class="comment">    obtaining a copy of this software and associated documentation</span>
<a name="l00013"></a>00013 <span class="comment">    files (the "Software"), to deal in the Software without</span>
<a name="l00014"></a>00014 <span class="comment">    restriction, including without limitation the rights to use, copy,</span>
<a name="l00015"></a>00015 <span class="comment">    modify, merge, publish, distribute, sublicense, and/or sell copies</span>
<a name="l00016"></a>00016 <span class="comment">    of the Software, and to permit persons to whom the Software is</span>
<a name="l00017"></a>00017 <span class="comment">    furnished to do so, subject to the following conditions:</span>
<a name="l00018"></a>00018 <span class="comment"></span>
<a name="l00019"></a>00019 <span class="comment">    The above copyright notice and this permission notice shall be</span>
<a name="l00020"></a>00020 <span class="comment">    included in all copies or substantial portions of the Software.</span>
<a name="l00021"></a>00021 <span class="comment"></span>
<a name="l00022"></a>00022 <span class="comment">    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,</span>
<a name="l00023"></a>00023 <span class="comment">    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF</span>
<a name="l00024"></a>00024 <span class="comment">    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND</span>
<a name="l00025"></a>00025 <span class="comment">    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR</span>
<a name="l00026"></a>00026 <span class="comment">    ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF</span>
<a name="l00027"></a>00027 <span class="comment">    CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION</span>
<a name="l00028"></a>00028 <span class="comment">    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.</span>
<a name="l00029"></a>00029 <span class="comment"></span>
<a name="l00030"></a>00030 <span class="comment">    Except as contained in this notice, the names of the Centre for</span>
<a name="l00031"></a>00031 <span class="comment">    Digital Music; Queen Mary, University of London; and Chris Cannam</span>
<a name="l00032"></a>00032 <span class="comment">    shall not be used in advertising or otherwise to promote the sale,</span>
<a name="l00033"></a>00033 <span class="comment">    use or other dealings in this Software without prior written</span>
<a name="l00034"></a>00034 <span class="comment">    authorization.</span>
<a name="l00035"></a>00035 <span class="comment">*/</span>
<a name="l00036"></a>00036 
<a name="l00037"></a>00037 <span class="preprocessor">#include "<a class="code" href="PluginChannelAdapter_8h.html">PluginChannelAdapter.h</a>"</span>
<a name="l00038"></a>00038 
<a name="l00039"></a>00039 <span class="keyword">namespace </span>Vamp {
<a name="l00040"></a>00040 
<a name="l00041"></a>00041 <span class="keyword">namespace </span>HostExt {
<a name="l00042"></a>00042 
<a name="l00043"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html">00043</a> <span class="keyword">class </span><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html">PluginChannelAdapter::Impl</a>
<a name="l00044"></a>00044 {
<a name="l00045"></a>00045 <span class="keyword">public</span>:
<a name="l00046"></a>00046     <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#dff6fc53236f067148f82da1adca7876">Impl</a>(<a class="code" href="classVamp_1_1Plugin.html" title="Vamp::Plugin is a base class for plugin instance classes that provide feature extraction...">Plugin</a> *plugin);
<a name="l00047"></a>00047     <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#2f93eb032a41a52967e1c47a2901fa33">~Impl</a>();
<a name="l00048"></a>00048 
<a name="l00049"></a>00049     <span class="keywordtype">bool</span> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#bf47235b455880c94ec15bb71122afc8">initialise</a>(<span class="keywordtype">size_t</span> channels, <span class="keywordtype">size_t</span> stepSize, <span class="keywordtype">size_t</span> blockSize);
<a name="l00050"></a>00050 
<a name="l00051"></a>00051     <a class="code" href="classVamp_1_1Plugin.html#448fb57dc245d47923ec9eeaf9856c5f">FeatureSet</a> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#ce73f776af09556fa6dc000c8bfdbe06">process</a>(<span class="keyword">const</span> <span class="keywordtype">float</span> *<span class="keyword">const</span> *inputBuffers, <a class="code" href="structVamp_1_1RealTime.html" title="RealTime represents time values to nanosecond precision with accurate arithmetic...">RealTime</a> timestamp);
<a name="l00052"></a>00052 
<a name="l00053"></a>00053 <span class="keyword">protected</span>:
<a name="l00054"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#ff31c1cf3a0fb18ddab7e3ab213c3c07">00054</a>     <a class="code" href="classVamp_1_1Plugin.html" title="Vamp::Plugin is a base class for plugin instance classes that provide feature extraction...">Plugin</a> *<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#ff31c1cf3a0fb18ddab7e3ab213c3c07">m_plugin</a>;
<a name="l00055"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#be7b76040411a4544a9a8b0808737626">00055</a>     <span class="keywordtype">size_t</span> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#be7b76040411a4544a9a8b0808737626">m_blockSize</a>;
<a name="l00056"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">00056</a>     <span class="keywordtype">size_t</span> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a>;
<a name="l00057"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">00057</a>     <span class="keywordtype">size_t</span> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">m_pluginChannels</a>;
<a name="l00058"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">00058</a>     <span class="keywordtype">float</span> **<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a>;
<a name="l00059"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#882147731ba96cf5da446265dbce11bd">00059</a>     <span class="keyword">const</span> <span class="keywordtype">float</span> **<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#882147731ba96cf5da446265dbce11bd">m_forwardPtrs</a>;
<a name="l00060"></a>00060 };
<a name="l00061"></a>00061 
<a name="l00062"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter.html#2cda2b672708264f9a33c43bad3acdd8">00062</a> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter.html#2cda2b672708264f9a33c43bad3acdd8">PluginChannelAdapter::PluginChannelAdapter</a>(<a class="code" href="classVamp_1_1Plugin.html" title="Vamp::Plugin is a base class for plugin instance classes that provide feature extraction...">Plugin</a> *plugin) :
<a name="l00063"></a>00063     <a class="code" href="classVamp_1_1HostExt_1_1PluginWrapper.html" title="PluginWrapper is a simple base class for adapter plugins.">PluginWrapper</a>(plugin)
<a name="l00064"></a>00064 {
<a name="l00065"></a>00065     <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter.html#e3a74a2e6c4cd33dce9f4248e73c6701">m_impl</a> = <span class="keyword">new</span> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html">Impl</a>(plugin);
<a name="l00066"></a>00066 }
<a name="l00067"></a>00067 
<a name="l00068"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter.html#7bd79ac5febc8d3c499e7339476c07b4">00068</a> PluginChannelAdapter::~PluginChannelAdapter()
<a name="l00069"></a>00069 {
<a name="l00070"></a>00070     <span class="keyword">delete</span> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter.html#e3a74a2e6c4cd33dce9f4248e73c6701">m_impl</a>;
<a name="l00071"></a>00071 }
<a name="l00072"></a>00072 
<a name="l00073"></a>00073 <span class="keywordtype">bool</span>
<a name="l00074"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter.html#de0473c8fc54636431967cbf41649c1c">00074</a> PluginChannelAdapter::initialise(<span class="keywordtype">size_t</span> channels, <span class="keywordtype">size_t</span> stepSize, <span class="keywordtype">size_t</span> blockSize)
<a name="l00075"></a>00075 {
<a name="l00076"></a>00076     <span class="keywordflow">return</span> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter.html#e3a74a2e6c4cd33dce9f4248e73c6701">m_impl</a>-&gt;<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#bf47235b455880c94ec15bb71122afc8">initialise</a>(channels, stepSize, blockSize);
<a name="l00077"></a>00077 }
<a name="l00078"></a>00078 
<a name="l00079"></a>00079 <a class="code" href="classVamp_1_1Plugin.html#448fb57dc245d47923ec9eeaf9856c5f">PluginChannelAdapter::FeatureSet</a>
<a name="l00080"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter.html#294e663b4d9ec885791faa1b440571ed">00080</a> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter.html#294e663b4d9ec885791faa1b440571ed" title="Process a single block of input data.">PluginChannelAdapter::process</a>(<span class="keyword">const</span> <span class="keywordtype">float</span> *<span class="keyword">const</span> *inputBuffers,
<a name="l00081"></a>00081                               <a class="code" href="structVamp_1_1RealTime.html" title="RealTime represents time values to nanosecond precision with accurate arithmetic...">RealTime</a> timestamp)
<a name="l00082"></a>00082 {
<a name="l00083"></a>00083     <span class="keywordflow">return</span> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter.html#e3a74a2e6c4cd33dce9f4248e73c6701">m_impl</a>-&gt;<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#ce73f776af09556fa6dc000c8bfdbe06">process</a>(inputBuffers, timestamp);
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085 
<a name="l00086"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#dff6fc53236f067148f82da1adca7876">00086</a> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#dff6fc53236f067148f82da1adca7876">PluginChannelAdapter::Impl::Impl</a>(<a class="code" href="classVamp_1_1Plugin.html" title="Vamp::Plugin is a base class for plugin instance classes that provide feature extraction...">Plugin</a> *plugin) :
<a name="l00087"></a>00087     <a class="code" href="classVamp_1_1HostExt_1_1PluginWrapper.html#b4e40ecd98b445e1a2aa9e7baa280ea2">m_plugin</a>(plugin),
<a name="l00088"></a>00088     m_blockSize(0),
<a name="l00089"></a>00089     m_inputChannels(0),
<a name="l00090"></a>00090     m_pluginChannels(0),
<a name="l00091"></a>00091     m_buffer(0),
<a name="l00092"></a>00092     m_forwardPtrs(0)
<a name="l00093"></a>00093 {
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095 
<a name="l00096"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#2f93eb032a41a52967e1c47a2901fa33">00096</a> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#2f93eb032a41a52967e1c47a2901fa33">PluginChannelAdapter::Impl::~Impl</a>()
<a name="l00097"></a>00097 {
<a name="l00098"></a>00098     <span class="comment">// the adapter will delete the plugin</span>
<a name="l00099"></a>00099 
<a name="l00100"></a>00100     <span class="keywordflow">if</span> (<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a>) {
<a name="l00101"></a>00101         <span class="keywordflow">if</span> (<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a> &gt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">m_pluginChannels</a>) {
<a name="l00102"></a>00102             <span class="keyword">delete</span>[] <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a>[0];
<a name="l00103"></a>00103         } <span class="keywordflow">else</span> {
<a name="l00104"></a>00104             <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">m_pluginChannels</a> - <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a>; ++i) {
<a name="l00105"></a>00105                 <span class="keyword">delete</span>[] <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a>[i];
<a name="l00106"></a>00106             }
<a name="l00107"></a>00107         }
<a name="l00108"></a>00108         <span class="keyword">delete</span>[] <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a>;
<a name="l00109"></a>00109         <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a> = 0;
<a name="l00110"></a>00110     }
<a name="l00111"></a>00111 
<a name="l00112"></a>00112     <span class="keywordflow">if</span> (<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#882147731ba96cf5da446265dbce11bd">m_forwardPtrs</a>) {
<a name="l00113"></a>00113         <span class="keyword">delete</span>[] <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#882147731ba96cf5da446265dbce11bd">m_forwardPtrs</a>;
<a name="l00114"></a>00114         <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#882147731ba96cf5da446265dbce11bd">m_forwardPtrs</a> = 0;
<a name="l00115"></a>00115     }
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117 
<a name="l00118"></a>00118 <span class="keywordtype">bool</span>
<a name="l00119"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#bf47235b455880c94ec15bb71122afc8">00119</a> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#bf47235b455880c94ec15bb71122afc8">PluginChannelAdapter::Impl::initialise</a>(<span class="keywordtype">size_t</span> channels, <span class="keywordtype">size_t</span> stepSize, <span class="keywordtype">size_t</span> blockSize)
<a name="l00120"></a>00120 {
<a name="l00121"></a>00121     <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#be7b76040411a4544a9a8b0808737626">m_blockSize</a> = blockSize;
<a name="l00122"></a>00122 
<a name="l00123"></a>00123     <span class="keywordtype">size_t</span> minch = <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#ff31c1cf3a0fb18ddab7e3ab213c3c07">m_plugin</a>-&gt;<a class="code" href="classVamp_1_1Plugin.html#267b42e866df3cf0d190893e8096f525" title="Get the minimum supported number of input channels.">getMinChannelCount</a>();
<a name="l00124"></a>00124     <span class="keywordtype">size_t</span> maxch = <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#ff31c1cf3a0fb18ddab7e3ab213c3c07">m_plugin</a>-&gt;<a class="code" href="classVamp_1_1Plugin.html#2c5ab12b6fa4847cb244bd1e9cb3ae5e" title="Get the maximum supported number of input channels.">getMaxChannelCount</a>();
<a name="l00125"></a>00125 
<a name="l00126"></a>00126     <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a> = channels;
<a name="l00127"></a>00127 
<a name="l00128"></a>00128     <span class="keywordflow">if</span> (<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a> &lt; minch) {
<a name="l00129"></a>00129 
<a name="l00130"></a>00130         <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#882147731ba96cf5da446265dbce11bd">m_forwardPtrs</a> = <span class="keyword">new</span> <span class="keyword">const</span> <span class="keywordtype">float</span> *[minch];
<a name="l00131"></a>00131 
<a name="l00132"></a>00132         <span class="keywordflow">if</span> (<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a> &gt; 1) {
<a name="l00133"></a>00133             <span class="comment">// We need a set of zero-valued buffers to add to the</span>
<a name="l00134"></a>00134             <span class="comment">// forwarded pointers</span>
<a name="l00135"></a>00135             <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a> = <span class="keyword">new</span> <span class="keywordtype">float</span>*[minch - channels];
<a name="l00136"></a>00136             <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; minch; ++i) {
<a name="l00137"></a>00137                 <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a>[i] = <span class="keyword">new</span> <span class="keywordtype">float</span>[blockSize];
<a name="l00138"></a>00138                 <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j &lt; blockSize; ++j) {
<a name="l00139"></a>00139                     <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a>[i][j] = 0.f;
<a name="l00140"></a>00140                 }
<a name="l00141"></a>00141             }
<a name="l00142"></a>00142         }
<a name="l00143"></a>00143 
<a name="l00144"></a>00144         <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">m_pluginChannels</a> = minch;
<a name="l00145"></a>00145 
<a name="l00146"></a>00146         std::cerr &lt;&lt; <span class="stringliteral">"PluginChannelAdapter::initialise: expanding "</span> &lt;&lt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a> &lt;&lt; <span class="stringliteral">" to "</span> &lt;&lt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">m_pluginChannels</a> &lt;&lt; <span class="stringliteral">" for plugin"</span> &lt;&lt; std::endl;
<a name="l00147"></a>00147 
<a name="l00148"></a>00148     } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a> &gt; maxch) {
<a name="l00149"></a>00149 
<a name="l00150"></a>00150         <span class="comment">// We only need m_buffer if we are mixing down to a single</span>
<a name="l00151"></a>00151         <span class="comment">// channel -- otherwise we can just forward the same float* as</span>
<a name="l00152"></a>00152         <span class="comment">// passed in to process(), expecting the excess to be ignored</span>
<a name="l00153"></a>00153 
<a name="l00154"></a>00154         <span class="keywordflow">if</span> (maxch == 1) {
<a name="l00155"></a>00155             <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a> = <span class="keyword">new</span> <span class="keywordtype">float</span> *[1];
<a name="l00156"></a>00156             <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a>[0] = <span class="keyword">new</span> <span class="keywordtype">float</span>[blockSize];
<a name="l00157"></a>00157 
<a name="l00158"></a>00158             std::cerr &lt;&lt; <span class="stringliteral">"PluginChannelAdapter::initialise: mixing "</span> &lt;&lt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a> &lt;&lt; <span class="stringliteral">" to mono for plugin"</span> &lt;&lt; std::endl;
<a name="l00159"></a>00159 
<a name="l00160"></a>00160         } <span class="keywordflow">else</span> {
<a name="l00161"></a>00161             
<a name="l00162"></a>00162             std::cerr &lt;&lt; <span class="stringliteral">"PluginChannelAdapter::initialise: reducing "</span> &lt;&lt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a> &lt;&lt; <span class="stringliteral">" to "</span> &lt;&lt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">m_pluginChannels</a> &lt;&lt; <span class="stringliteral">" for plugin"</span> &lt;&lt; std::endl;
<a name="l00163"></a>00163         }
<a name="l00164"></a>00164 
<a name="l00165"></a>00165         <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">m_pluginChannels</a> = maxch;
<a name="l00166"></a>00166 
<a name="l00167"></a>00167     } <span class="keywordflow">else</span> {
<a name="l00168"></a>00168  
<a name="l00169"></a>00169         std::cerr &lt;&lt; <span class="stringliteral">"PluginChannelAdapter::initialise: accepting given number of channels ("</span> &lt;&lt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a> &lt;&lt; <span class="stringliteral">")"</span> &lt;&lt; std::endl;
<a name="l00170"></a>00170         <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">m_pluginChannels</a> = <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a>;
<a name="l00171"></a>00171     }
<a name="l00172"></a>00172 
<a name="l00173"></a>00173     <span class="keywordflow">return</span> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#ff31c1cf3a0fb18ddab7e3ab213c3c07">m_plugin</a>-&gt;<a class="code" href="classVamp_1_1Plugin.html#f26212cf5fc511b603a8b48034247822" title="Initialise a plugin to prepare it for use with the given number of input channels...">initialise</a>(<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">m_pluginChannels</a>, stepSize, blockSize);
<a name="l00174"></a>00174 }
<a name="l00175"></a>00175 
<a name="l00176"></a>00176 <a class="code" href="classVamp_1_1Plugin.html#448fb57dc245d47923ec9eeaf9856c5f">PluginChannelAdapter::FeatureSet</a>
<a name="l00177"></a><a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#ce73f776af09556fa6dc000c8bfdbe06">00177</a> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#ce73f776af09556fa6dc000c8bfdbe06">PluginChannelAdapter::Impl::process</a>(<span class="keyword">const</span> <span class="keywordtype">float</span> *<span class="keyword">const</span> *inputBuffers,
<a name="l00178"></a>00178                                     <a class="code" href="structVamp_1_1RealTime.html" title="RealTime represents time values to nanosecond precision with accurate arithmetic...">RealTime</a> timestamp)
<a name="l00179"></a>00179 {
<a name="l00180"></a>00180 <span class="comment">//    std::cerr &lt;&lt; "PluginChannelAdapter::process: " &lt;&lt; m_inputChannels &lt;&lt; " -&gt; " &lt;&lt; m_pluginChannels &lt;&lt; " channels" &lt;&lt; std::endl;</span>
<a name="l00181"></a>00181 
<a name="l00182"></a>00182     <span class="keywordflow">if</span> (<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a> &lt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">m_pluginChannels</a>) {
<a name="l00183"></a>00183 
<a name="l00184"></a>00184         <span class="keywordflow">if</span> (<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a> == 1) {
<a name="l00185"></a>00185             <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">m_pluginChannels</a>; ++i) {
<a name="l00186"></a>00186                 <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#882147731ba96cf5da446265dbce11bd">m_forwardPtrs</a>[i] = inputBuffers[0];
<a name="l00187"></a>00187             }
<a name="l00188"></a>00188         } <span class="keywordflow">else</span> {
<a name="l00189"></a>00189             <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a>; ++i) {
<a name="l00190"></a>00190                 <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#882147731ba96cf5da446265dbce11bd">m_forwardPtrs</a>[i] = inputBuffers[i];
<a name="l00191"></a>00191             }
<a name="l00192"></a>00192             <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = m_inputChannels; i &lt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">m_pluginChannels</a>; ++i) {
<a name="l00193"></a>00193                 <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#882147731ba96cf5da446265dbce11bd">m_forwardPtrs</a>[i] = <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a>[i - m_inputChannels];
<a name="l00194"></a>00194             }
<a name="l00195"></a>00195         }
<a name="l00196"></a>00196 
<a name="l00197"></a>00197         <span class="keywordflow">return</span> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#ff31c1cf3a0fb18ddab7e3ab213c3c07">m_plugin</a>-&gt;<a class="code" href="classVamp_1_1Plugin.html#e4aed3bebfe80a2e2fccd3d37af26996" title="Process a single block of input data.">process</a>(<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#882147731ba96cf5da446265dbce11bd">m_forwardPtrs</a>, timestamp);
<a name="l00198"></a>00198 
<a name="l00199"></a>00199     } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a> &gt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">m_pluginChannels</a>) {
<a name="l00200"></a>00200 
<a name="l00201"></a>00201         <span class="keywordflow">if</span> (<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#94268d42f93bd26608fab34d5b4ad680">m_pluginChannels</a> == 1) {
<a name="l00202"></a>00202             <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j &lt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#be7b76040411a4544a9a8b0808737626">m_blockSize</a>; ++j) {
<a name="l00203"></a>00203                 <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a>[0][j] = inputBuffers[0][j];
<a name="l00204"></a>00204             }
<a name="l00205"></a>00205             <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 1; i &lt; <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#6e32d1564be175506a4d43dbfb8e3ace">m_inputChannels</a>; ++i) {
<a name="l00206"></a>00206                 <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j &lt; m_blockSize; ++j) {
<a name="l00207"></a>00207                     <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a>[0][j] += inputBuffers[i][j];
<a name="l00208"></a>00208                 }
<a name="l00209"></a>00209             }
<a name="l00210"></a>00210             <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j &lt; m_blockSize; ++j) {
<a name="l00211"></a>00211                 <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a>[0][j] /= m_inputChannels;
<a name="l00212"></a>00212             }
<a name="l00213"></a>00213             <span class="keywordflow">return</span> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#ff31c1cf3a0fb18ddab7e3ab213c3c07">m_plugin</a>-&gt;<a class="code" href="classVamp_1_1Plugin.html#e4aed3bebfe80a2e2fccd3d37af26996" title="Process a single block of input data.">process</a>(<a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#0494a5293836baeb822405ec4ce0c553">m_buffer</a>, timestamp);
<a name="l00214"></a>00214         } <span class="keywordflow">else</span> {
<a name="l00215"></a>00215             <span class="keywordflow">return</span> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#ff31c1cf3a0fb18ddab7e3ab213c3c07">m_plugin</a>-&gt;<a class="code" href="classVamp_1_1Plugin.html#e4aed3bebfe80a2e2fccd3d37af26996" title="Process a single block of input data.">process</a>(inputBuffers, timestamp);
<a name="l00216"></a>00216         }
<a name="l00217"></a>00217 
<a name="l00218"></a>00218     } <span class="keywordflow">else</span> {
<a name="l00219"></a>00219 
<a name="l00220"></a>00220         <span class="keywordflow">return</span> <a class="code" href="classVamp_1_1HostExt_1_1PluginChannelAdapter_1_1Impl.html#ff31c1cf3a0fb18ddab7e3ab213c3c07">m_plugin</a>-&gt;<a class="code" href="classVamp_1_1Plugin.html#e4aed3bebfe80a2e2fccd3d37af26996" title="Process a single block of input data.">process</a>(inputBuffers, timestamp);
<a name="l00221"></a>00221     }
<a name="l00222"></a>00222 }
<a name="l00223"></a>00223 
<a name="l00224"></a>00224 }
<a name="l00225"></a>00225 
<a name="l00226"></a>00226 }
<a name="l00227"></a>00227 
<a name="l00228"></a>00228 
</pre></div></div>
<hr size="1"><address style="text-align: right;"><small>Generated on Wed Jul 9 11:36:06 2008 for VampPluginSDK by&nbsp;
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