tomwalters@268: // Copyright 2007-2010, Thomas Walters
tomwalters@268: //
tomwalters@268: // AIM-C: A C++ implementation of the Auditory Image Model
tomwalters@268: // http://www.acousticscale.org/AIMC
tomwalters@268: //
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@268: //
tomwalters@318: //     http://www.apache.org/licenses/LICENSE-2.0
tomwalters@268: //
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@268: 
tomwalters@268: /*!
tomwalters@268:  * \file
tomwalters@268:  * \brief Modifiable List of Strobe Points - helper for SAI generation
tomwalters@268:  *
tomwalters@281:  * \author Tom Walters <tom@acousticscale.org>
tomwalters@268:  * \date created 2007/08/22
tomwalters@296:  * \version \$Id$
tomwalters@268:  */
tomwalters@268: 
tomwalters@283: #ifndef AIMC_SUPPORT_STROBELIST_H_
tomwalters@283: #define AIMC_SUPPORT_STROBELIST_H_
tomwalters@268: 
tomwalters@287: #include <cmath>
tomwalters@277: #include <deque>
tomwalters@268: 
tomwalters@277: namespace aimc {
tomwalters@277: using std::deque;
tomwalters@277: struct StrobePoint {
tomwalters@277:   int time;
tomwalters@277:   float weight;
tomwalters@277:   float working_weight;
tomwalters@268:   StrobePoint() {
tomwalters@280:     time = 0;
tomwalters@280:     weight = 0.0f;
tomwalters@280:     working_weight = 0.0f;
tomwalters@268:   }
tomwalters@268: };
tomwalters@268: 
tomwalters@268: class StrobeList {
tomwalters@268:  public:
tomwalters@268:   /*! \brief Create a new strobe list
tomwalters@268:    */
tomwalters@268:   inline StrobeList() {
tomwalters@277:     strobes_.resize(0);
tomwalters@268:   };
tomwalters@268: 
tomwalters@268:   inline ~StrobeList() {
tomwalters@268:   };
tomwalters@268: 
tomwalters@280:   /*! \brief Return the strobe time (in samples, can be negative)
tomwalters@280:    */
tomwalters@277:   inline StrobePoint Strobe(int strobe_number) {
tomwalters@277:     return strobes_.at(strobe_number);
tomwalters@268:   };
tomwalters@268: 
tomwalters@280:   /*! \brief Set the strobe weight
tomwalters@280:    */
tomwalters@277:   inline void SetWeight(int strobe_number, float weight) {
tomwalters@277:     strobes_.at(strobe_number).weight = weight;
tomwalters@268:   };
tomwalters@268: 
tomwalters@280:   /*! \brief Set the strobe's working weight
tomwalters@280:    */
tomwalters@277:   inline void SetWorkingWeight(int strobe_number, float working_weight) {
tomwalters@277:     strobes_.at(strobe_number).working_weight = working_weight;
tomwalters@268:   };
tomwalters@268: 
tomwalters@280:   /*! \brief Add a strobe to the list (must be in order)
tomwalters@280:    */
tomwalters@277:   inline void AddStrobe(int time, float weight) {
tomwalters@277:     StrobePoint s;
tomwalters@277:     s.time = time;
tomwalters@277:     s.weight = weight;
tomwalters@277:     strobes_.push_back(s);
tomwalters@268:   };
tomwalters@268: 
tomwalters@280:   /*! \brief Delete a strobe from the list
tomwalters@280:    */
tomwalters@277:   inline void DeleteFirstStrobe() {
tomwalters@277:     strobes_.pop_front();
tomwalters@268:   };
tomwalters@268: 
tomwalters@280:   /*! \brief Get the number of strobes
tomwalters@280:    */
tomwalters@277:   inline int strobe_count() const {
tomwalters@277:     return strobes_.size();
tomwalters@268:   };
tomwalters@268: 
tomwalters@280:   /*! \brief Shift the position of all strobes by subtracting offset from
tomwalters@280:    *  the time value of each
tomwalters@280:    */
tomwalters@277:   inline void ShiftStrobes(int offset) {
tomwalters@277:     for (unsigned int i = 0; i < strobes_.size(); ++i)
tomwalters@277:       strobes_[i].time -= offset;
tomwalters@268:   };
tomwalters@268: 
tomwalters@268:  private:
tomwalters@277:   deque<StrobePoint> strobes_;
tomwalters@268: };
tomwalters@277: }  // namespace aimc
tomwalters@268: 
tomwalters@283: #endif /* AIMC_SUPPORT_STROBELIST_H_ */
tomwalters@268: