cannam@110: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ cannam@110: cannam@110: /* cannam@110: Vamp cannam@110: cannam@110: An API for audio analysis and feature extraction plugins. cannam@110: cannam@110: Centre for Digital Music, Queen Mary, University of London. cannam@110: Copyright 2006-2009 Chris Cannam and QMUL. cannam@110: cannam@110: Permission is hereby granted, free of charge, to any person cannam@110: obtaining a copy of this software and associated documentation cannam@110: files (the "Software"), to deal in the Software without cannam@110: restriction, including without limitation the rights to use, copy, cannam@110: modify, merge, publish, distribute, sublicense, and/or sell copies cannam@110: of the Software, and to permit persons to whom the Software is cannam@110: furnished to do so, subject to the following conditions: cannam@110: cannam@110: The above copyright notice and this permission notice shall be cannam@110: included in all copies or substantial portions of the Software. cannam@110: cannam@110: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, cannam@110: EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF cannam@110: MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND cannam@110: NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR cannam@110: ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF cannam@110: CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION cannam@110: WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. cannam@110: cannam@110: Except as contained in this notice, the names of the Centre for cannam@110: Digital Music; Queen Mary, University of London; and Chris Cannam cannam@110: shall not be used in advertising or otherwise to promote the sale, cannam@110: use or other dealings in this Software without prior written cannam@110: authorization. cannam@110: */ cannam@110: cannam@110: #ifndef _VAMP_PLUGIN_WRAPPER_H_ cannam@110: #define _VAMP_PLUGIN_WRAPPER_H_ cannam@110: cannam@110: #include "hostguard.h" cannam@110: #include cannam@110: cannam@110: _VAMP_SDK_HOSTSPACE_BEGIN(PluginWrapper.h) cannam@110: cannam@110: namespace Vamp { cannam@110: cannam@110: namespace HostExt { cannam@110: cannam@110: /** cannam@110: * \class PluginWrapper PluginWrapper.h cannam@110: * cannam@110: * PluginWrapper is a simple base class for adapter plugins. It takes cannam@110: * a pointer to a "to be wrapped" Vamp plugin on construction, and cannam@110: * provides implementations of all the Vamp plugin methods that simply cannam@110: * delegate through to the wrapped plugin. A subclass can therefore cannam@110: * override only the methods that are meaningful for the particular cannam@110: * adapter. cannam@110: * cannam@110: * \note This class was introduced in version 1.1 of the Vamp plugin SDK. cannam@110: */ cannam@110: cannam@110: class PluginWrapper : public Plugin cannam@110: { cannam@110: public: cannam@110: virtual ~PluginWrapper(); cannam@110: cannam@110: bool initialise(size_t channels, size_t stepSize, size_t blockSize); cannam@110: void reset(); cannam@110: cannam@110: InputDomain getInputDomain() const; cannam@110: cannam@110: unsigned int getVampApiVersion() const; cannam@110: std::string getIdentifier() const; cannam@110: std::string getName() const; cannam@110: std::string getDescription() const; cannam@110: std::string getMaker() const; cannam@110: int getPluginVersion() const; cannam@110: std::string getCopyright() const; cannam@110: cannam@110: ParameterList getParameterDescriptors() const; cannam@110: float getParameter(std::string) const; cannam@110: void setParameter(std::string, float); cannam@110: cannam@110: ProgramList getPrograms() const; cannam@110: std::string getCurrentProgram() const; cannam@110: void selectProgram(std::string); cannam@110: cannam@110: size_t getPreferredStepSize() const; cannam@110: size_t getPreferredBlockSize() const; cannam@110: cannam@110: size_t getMinChannelCount() const; cannam@110: size_t getMaxChannelCount() const; cannam@110: cannam@110: OutputList getOutputDescriptors() const; cannam@110: cannam@110: FeatureSet process(const float *const *inputBuffers, RealTime timestamp); cannam@110: cannam@110: FeatureSet getRemainingFeatures(); cannam@110: cannam@110: /** cannam@110: * Return a pointer to the plugin wrapper of type WrapperType cannam@110: * surrounding this wrapper's plugin, if present. cannam@110: * cannam@110: * This is useful in situations where a plugin is wrapped by cannam@110: * multiple different wrappers (one inside another) and the host cannam@110: * wants to call some wrapper-specific function on one of the cannam@110: * layers without having to care about the order in which they are cannam@110: * wrapped. For example, the plugin returned by cannam@110: * PluginLoader::loadPlugin may have more than one wrapper; if the cannam@110: * host wanted to query or fine-tune some property of one of them, cannam@110: * it would be hard to do so without knowing the order of the cannam@110: * wrappers. This function therefore gives direct access to the cannam@110: * wrapper of a particular type. cannam@110: */ cannam@110: template cannam@110: WrapperType *getWrapper() { cannam@110: WrapperType *w = dynamic_cast(this); cannam@110: if (w) return w; cannam@110: PluginWrapper *pw = dynamic_cast(m_plugin); cannam@110: if (pw) return pw->getWrapper(); cannam@110: return 0; cannam@110: } cannam@110: cannam@110: protected: cannam@110: PluginWrapper(Plugin *plugin); // I take ownership of plugin cannam@110: Plugin *m_plugin; cannam@110: }; cannam@110: cannam@110: } cannam@110: cannam@110: } cannam@110: cannam@110: _VAMP_SDK_HOSTSPACE_END(PluginWrapper.h) cannam@110: cannam@110: #endif