text: /*************************************************************************/
  /*                                                                       */
  /*                  Language Technologies Institute                      */
  /*                     Carnegie Mellon University                        */
  /*                        Copyright (c) 2001                             */
  /*                        All Rights Reserved.                           */
  /*                                                                       */
  /*  Permission is hereby granted, free of charge, to use and distribute  */
  /*  this software and its documentation without restriction, including   */
  /*  without limitation the rights to use, copy, modify, merge, publish,  */
  /*  distribute, sublicense, and/or sell copies of this work, and to      */
  /*  permit persons to whom this work is furnished to do so, subject to   */
  /*  the following conditions:                                            */
  /*   1. The code must retain the above copyright notice, this list of    */
  /*      conditions and the following disclaimer.                         */
  /*   2. Any modifications must be clearly marked as such.                */
  /*   3. Original authors' names are not deleted.                         */
  /*   4. The authors' names are not used to endorse or promote products   */
  /*      derived from this software without specific prior written        */
  /*      permission.                                                      */
  /*                                                                       */
  /*  CARNEGIE MELLON UNIVERSITY AND THE CONTRIBUTORS TO THIS WORK         */
  /*  DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING      */
  /*  ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT   */
  /*  SHALL CARNEGIE MELLON UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE      */
  /*  FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES    */
  /*  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN   */
  /*  AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,          */
  /*  ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF       */
  /*  THIS SOFTWARE.                                                       */
  /*                                                                       */
  /*************************************************************************/
  /*             Author:  Alan W Black (awb@cs.cmu.edu)                    */
  /*               Date:  August 2000                                      */
  /*************************************************************************/
  /*                                                                       */
  /*  Waveforms                                                            */
  /*                                                                       */
  /*************************************************************************/
  #include "include/cst_string.h"
  #include "include/cst_val.h"
  #include "include/cst_sts.h"
  
  CST_VAL_REGISTER_TYPE(lpcres,cst_lpcres)
  
  cst_lpcres *new_lpcres()
  {
      cst_lpcres *l = cst_alloc(struct cst_lpcres_struct,1);
      return l;
  }
  
  void delete_lpcres(cst_lpcres *l)
  {
      if (l)
      {
  	cst_free(l->times);
  	cst_free((unsigned short **)l->frames);
  	cst_free(l->residual);
  	cst_free(l->sizes);
          if (l->delayed_decoding)
              cst_free(l->packed_residuals);
  	cst_free(l);
      }
      return;
  }
  
  float lpcres_frame_shift(cst_lpcres *t, int frame)
  {
      if (frame == 0)
  	return (float) t->times[frame];
      else
  	return (float) t->times[frame]-t->times[frame-1];
  }
  
  void lpcres_resize_frames(cst_lpcres *l,int num_frames)
  {
      l->times = cst_alloc(int,num_frames);
      l->frames = cst_alloc(const unsigned short*,num_frames);
      l->sizes = cst_alloc(int,num_frames);
      l->num_frames = num_frames;
  }
  
  void lpcres_resize_samples(cst_lpcres *l,int num_samples)
  {
      l->residual = cst_alloc(unsigned char,num_samples);
      /* mulaw for 0 is 255 */
      memset(l->residual,255,num_samples);
      l->num_samples = num_samples;
  
  }
  