tomwalters@0: // Copyright 2007-2010, Thomas Walters
tomwalters@0: //
tomwalters@0: // AIM-C: A C++ implementation of the Auditory Image Model
tomwalters@0: // http://www.acousticscale.org/AIMC
tomwalters@0: //
tomwalters@45: // Licensed under the Apache License, Version 2.0 (the "License");
tomwalters@45: // you may not use this file except in compliance with the License.
tomwalters@45: // You may obtain a copy of the License at
tomwalters@0: //
tomwalters@45: //     http://www.apache.org/licenses/LICENSE-2.0
tomwalters@0: //
tomwalters@45: // Unless required by applicable law or agreed to in writing, software
tomwalters@45: // distributed under the License is distributed on an "AS IS" BASIS,
tomwalters@45: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
tomwalters@45: // See the License for the specific language governing permissions and
tomwalters@45: // limitations under the License.
tomwalters@0: 
tomwalters@0: /*!
tomwalters@0:  * \file
tomwalters@0:  * \brief Modifiable List of Strobe Points - helper for SAI generation
tomwalters@0:  *
tomwalters@9:  * \author Tom Walters <tom@acousticscale.org>
tomwalters@0:  * \date created 2007/08/22
tomwalters@23:  * \version \$Id$
tomwalters@0:  */
tomwalters@0: 
tomwalters@11: #ifndef AIMC_SUPPORT_STROBELIST_H_
tomwalters@11: #define AIMC_SUPPORT_STROBELIST_H_
tomwalters@0: 
tomwalters@15: #include <cmath>
tomwalters@5: #include <deque>
tomwalters@0: 
tomwalters@5: namespace aimc {
tomwalters@5: using std::deque;
tomwalters@5: struct StrobePoint {
tomwalters@5:   int time;
tomwalters@5:   float weight;
tomwalters@5:   float working_weight;
tomwalters@0:   StrobePoint() {
tomwalters@8:     time = 0;
tomwalters@8:     weight = 0.0f;
tomwalters@8:     working_weight = 0.0f;
tomwalters@0:   }
tomwalters@0: };
tomwalters@0: 
tomwalters@0: class StrobeList {
tomwalters@0:  public:
tomwalters@0:   /*! \brief Create a new strobe list
tomwalters@0:    */
tomwalters@0:   inline StrobeList() {
tomwalters@5:     strobes_.resize(0);
tomwalters@0:   };
tomwalters@0: 
tomwalters@0:   inline ~StrobeList() {
tomwalters@0:   };
tomwalters@0: 
tomwalters@8:   /*! \brief Return the strobe time (in samples, can be negative)
tomwalters@8:    */
tomwalters@5:   inline StrobePoint Strobe(int strobe_number) {
tomwalters@5:     return strobes_.at(strobe_number);
tomwalters@0:   };
tomwalters@0: 
tomwalters@8:   /*! \brief Set the strobe weight
tomwalters@8:    */
tomwalters@5:   inline void SetWeight(int strobe_number, float weight) {
tomwalters@5:     strobes_.at(strobe_number).weight = weight;
tomwalters@0:   };
tomwalters@0: 
tomwalters@8:   /*! \brief Set the strobe's working weight
tomwalters@8:    */
tomwalters@5:   inline void SetWorkingWeight(int strobe_number, float working_weight) {
tomwalters@5:     strobes_.at(strobe_number).working_weight = working_weight;
tomwalters@0:   };
tomwalters@0: 
tomwalters@8:   /*! \brief Add a strobe to the list (must be in order)
tomwalters@8:    */
tomwalters@5:   inline void AddStrobe(int time, float weight) {
tomwalters@5:     StrobePoint s;
tomwalters@5:     s.time = time;
tomwalters@5:     s.weight = weight;
tomwalters@5:     strobes_.push_back(s);
tomwalters@0:   };
tomwalters@0: 
tomwalters@8:   /*! \brief Delete a strobe from the list
tomwalters@8:    */
tomwalters@5:   inline void DeleteFirstStrobe() {
tomwalters@5:     strobes_.pop_front();
tomwalters@0:   };
tomwalters@0: 
tomwalters@8:   /*! \brief Get the number of strobes
tomwalters@8:    */
tomwalters@5:   inline int strobe_count() const {
tomwalters@5:     return strobes_.size();
tomwalters@0:   };
tomwalters@0: 
tomwalters@8:   /*! \brief Shift the position of all strobes by subtracting offset from
tomwalters@8:    *  the time value of each
tomwalters@8:    */
tomwalters@5:   inline void ShiftStrobes(int offset) {
tomwalters@5:     for (unsigned int i = 0; i < strobes_.size(); ++i)
tomwalters@5:       strobes_[i].time -= offset;
tomwalters@0:   };
tomwalters@0: 
tomwalters@0:  private:
tomwalters@5:   deque<StrobePoint> strobes_;
tomwalters@0: };
tomwalters@5: }  // namespace aimc
tomwalters@0: 
tomwalters@11: #endif /* AIMC_SUPPORT_STROBELIST_H_ */
tomwalters@0: