ref: 6e3aac3abfd17457d033d433abf820e9bbc8847f
dir: /src/speech/cst_lpcres.c/
/*************************************************************************/
/* */
/* 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 "cst_string.h"
#include "cst_val.h"
#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;
}