VampPluginSDK: PluginAdapter.h Source File

00001 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
cannam@0: 00002 
cannam@0: 00003 /*
cannam@0: 00004     Vamp
cannam@0: 00005 
cannam@0: 00006     An API for audio analysis and feature extraction plugins.
cannam@0: 00007 
cannam@0: 00008     Centre for Digital Music, Queen Mary, University of London.
cannam@0: 00009     Copyright 2006 Chris Cannam.
cannam@0: 00010   
cannam@0: 00011     Permission is hereby granted, free of charge, to any person
cannam@0: 00012     obtaining a copy of this software and associated documentation
cannam@0: 00013     files (the "Software"), to deal in the Software without
cannam@0: 00014     restriction, including without limitation the rights to use, copy,
cannam@0: 00015     modify, merge, publish, distribute, sublicense, and/or sell copies
cannam@0: 00016     of the Software, and to permit persons to whom the Software is
cannam@0: 00017     furnished to do so, subject to the following conditions:
cannam@0: 00018 
cannam@0: 00019     The above copyright notice and this permission notice shall be
cannam@0: 00020     included in all copies or substantial portions of the Software.
cannam@0: 00021 
cannam@0: 00022     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
cannam@0: 00023     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
cannam@0: 00024     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
cannam@0: 00025     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
cannam@0: 00026     ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
cannam@0: 00027     CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
cannam@0: 00028     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
cannam@0: 00029 
cannam@0: 00030     Except as contained in this notice, the names of the Centre for
cannam@0: 00031     Digital Music; Queen Mary, University of London; and Chris Cannam
cannam@0: 00032     shall not be used in advertising or otherwise to promote the sale,
cannam@0: 00033     use or other dealings in this Software without prior written
cannam@0: 00034     authorization.
cannam@0: 00035 */
cannam@0: 00036 
cannam@0: 00037 #ifndef _VAMP_PLUGIN_ADAPTER_H_
cannam@0: 00038 #define _VAMP_PLUGIN_ADAPTER_H_
cannam@0: 00039 
cannam@0: 00040 #include <vamp/vamp.h>
cannam@0: 00041 
cannam@0: 00042 #include "Plugin.h"
cannam@0: 00043 
cannam@0: 00044 #include <map>
cannam@0: 00045 
cannam@0: 00046 namespace Vamp {
cannam@0: 00047 
cannam@0: 00063 class PluginAdapterBase
cannam@0: 00064 {
cannam@0: 00065 public:
cannam@0: 00066     virtual ~PluginAdapterBase();
cannam@0: 00067 
cannam@0: 00072     const VampPluginDescriptor *getDescriptor();
cannam@0: 00073 
cannam@0: 00074 protected:
cannam@0: 00075     PluginAdapterBase();
cannam@0: 00076 
cannam@0: 00077     virtual Plugin *createPlugin(float inputSampleRate) = 0;
cannam@0: 00078 
cannam@0: 00079     class Impl;
cannam@0: 00080     Impl *m_impl;
cannam@0: 00081 };
cannam@0: 00082 
cannam@0: 00092 template <typename P>
cannam@0: 00093 class PluginAdapter : public PluginAdapterBase
cannam@0: 00094 {
cannam@0: 00095 public:
cannam@0: 00096     PluginAdapter() : PluginAdapterBase() { }
cannam@0: 00097     virtual ~PluginAdapter() { }
cannam@0: 00098 
cannam@0: 00099 protected:
cannam@0: 00100     Plugin *createPlugin(float inputSampleRate) {
cannam@0: 00101         P *p = new P(inputSampleRate);
cannam@0: 00102         Plugin *plugin = dynamic_cast<Plugin *>(p);
cannam@0: 00103         if (!plugin) {
cannam@0: 00104             std::cerr << "ERROR: PluginAdapter::createPlugin: "
cannam@0: 00105                       << "Template type is not a plugin!"
cannam@0: 00106                       << std::endl;
cannam@0: 00107             delete p;
cannam@0: 00108             return 0;
cannam@0: 00109         }
cannam@0: 00110         return plugin;
cannam@0: 00111     }
cannam@0: 00112 };
cannam@0: 00113     
cannam@0: 00114 }
cannam@0: 00115 
cannam@0: 00116 #endif
cannam@0: 00117 
cannam@0: