tomwalters@305: // Copyright 2010, Thomas Walters
tomwalters@305: //
tomwalters@305: // AIM-C: A C++ implementation of the Auditory Image Model
tomwalters@305: // http://www.acousticscale.org/AIMC
tomwalters@305: //
tomwalters@318: // Licensed under the Apache License, Version 2.0 (the "License");
tomwalters@318: // you may not use this file except in compliance with the License.
tomwalters@318: // You may obtain a copy of the License at
tomwalters@305: //
tomwalters@318: //     http://www.apache.org/licenses/LICENSE-2.0
tomwalters@305: //
tomwalters@318: // Unless required by applicable law or agreed to in writing, software
tomwalters@318: // distributed under the License is distributed on an "AS IS" BASIS,
tomwalters@318: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
tomwalters@318: // See the License for the specific language governing permissions and
tomwalters@318: // limitations under the License.
tomwalters@305: 
tomwalters@305: /*!
tomwalters@305:  * \author Thomas Walters <tom@acousticscale.org>
tomwalters@305:  * \date created 2010/02/23
tomwalters@305:  * \version \$Id$
tomwalters@305:  */
tomwalters@305: 
tomwalters@305: #ifndef AIMC_MODULES_STROBES_LOCAL_MAX_H_
tomwalters@305: #define AIMC_MODULES_STROBES_LOCAL_MAX_H_
tomwalters@305: 
tomwalters@305: #include <vector>
tomwalters@305: #include "Support/Module.h"
tomwalters@305: 
tomwalters@305: namespace aimc {
tomwalters@305: using std::vector;
tomwalters@305: class ModuleLocalMax : public Module {
tomwalters@305:  public:
tomwalters@305:   explicit ModuleLocalMax(Parameters *pParam);
tomwalters@305:   virtual ~ModuleLocalMax();
tomwalters@305: 
tomwalters@305:   /*! \brief Process a buffer
tomwalters@305:    */
tomwalters@305:   virtual void Process(const SignalBank &input);
tomwalters@305: 
tomwalters@305:  private:
tomwalters@305:   /*! \brief Reset the internal state of the module
tomwalters@305:    */
tomwalters@305:   virtual void ResetInternal();
tomwalters@305: 
tomwalters@305:   /*! \brief Prepare the module
tomwalters@305:    *  \param input Input signal
tomwalters@305:    *  \param output true on success false on failure
tomwalters@305:    */
tomwalters@305:   virtual bool InitializeInternal(const SignalBank &input);
tomwalters@305: 
tomwalters@305:   float sample_rate_;
tomwalters@305:   int buffer_length_;
tomwalters@305:   int channel_count_;
tomwalters@305: 
tomwalters@305:   float decay_time_ms_;
tomwalters@305:   float timeout_ms_;
tomwalters@305:   int strobe_timeout_samples_;
tomwalters@305:   int strobe_decay_samples_;
tomwalters@305: 
tomwalters@305:   vector<float> threshold_;
tomwalters@305:   vector<float> decay_constant_;
tomwalters@305: 
tomwalters@305:   vector<float> prev_sample_;
tomwalters@305:   vector<float> curr_sample_;
tomwalters@305:   vector<float> next_sample_;
tomwalters@305: };
tomwalters@305: }  // namespace aimc
tomwalters@305: 
tomwalters@305: #endif  // AIMC_MODULES_STROBES_LOCAL_MAX_H_