ref: e4ff39a77cfa1c09e5a5486005f0b9ea5a50250e
dir: /src/speech/cst_track.c/
/*************************************************************************/
/* */
/* Language Technologies Institute */
/* Carnegie Mellon University */
/* Copyright (c) 1999 */
/* 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 */
/*************************************************************************/
/* */
/* Tracks (cepstrum, ffts, F0 etc) */
/* */
/*************************************************************************/
#include "cst_string.h"
#include "cst_val.h"
#include "cst_track.h"
CST_VAL_REGISTER_TYPE(track,cst_track)
cst_track *new_track()
{
cst_track *w = cst_alloc(struct cst_track_struct,1);
return w;
}
void delete_track(cst_track *w)
{
int i;
if (w)
{
cst_free(w->times);
for (i=0; i < w->num_frames; i++)
cst_free(w->frames[i]);
cst_free(w->frames);
cst_free(w);
}
return;
}
float track_frame_shift(cst_track *t, int frame)
{
if (frame == 0)
return t->times[frame];
else
return t->times[frame]-t->times[frame-1];
}
void cst_track_resize(cst_track *t,int num_frames, int num_channels)
{
float *n_times;
float **n_frames;
int i;
n_times = cst_alloc(float,num_frames);
memmove(n_times,t->times,
(sizeof(float)*((num_frames < t->num_frames) ?
num_frames : t->num_frames)));
n_frames = cst_alloc(float*,num_frames);
for (i=0; i<num_frames; i++)
{
n_frames[i] = cst_alloc(float,num_channels);
if (i<t->num_frames)
{
memmove(n_frames[i],
t->frames[i],
sizeof(float)*((num_channels < t->num_channels) ?
num_channels : t->num_channels));
cst_free(t->frames[i]);
}
}
for ( ; i<t->num_frames; i++)
cst_free(t->frames[i]);
cst_free(t->frames);
t->frames = n_frames;
cst_free(t->times);
t->times = n_times;
t->num_frames = num_frames;
t->num_channels = num_channels;
}
cst_track *cst_track_copy(const cst_track *t)
{
cst_track *t2;
int i;
t2 = new_track();
t2->times = cst_alloc(float,t->num_frames);
memmove(t2->times,t->times, (sizeof(float)*t->num_frames));
t2->num_frames = t->num_frames;
t2->num_channels = t->num_channels;
t2->frames = cst_alloc(float *,t->num_frames);
for (i=0; i<t2->num_frames; i++)
{
t2->frames[i] = cst_alloc(float,t2->num_channels);
memmove(t2->frames[i],t->frames[i], sizeof(float)*t2->num_channels);
}
return t2;
}